diff options
| author | Eric W. Biederman <ebiederm@xmission.com> | 2006-07-27 02:36:23 -0600 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2006-07-27 02:36:23 -0600 |
| commit | 283261998a9846019d898bc454b363e4aaf3d181 (patch) | |
| tree | a4af6da4c5a2c6f7669d918c1f07dc68d6aa0ab2 | |
| download | kexec-tools-1.101.tar.gz | |
kexec-tools-1.101v1.101
- Initial import into git
- initial nbi image formage support
- ppc32 initial register setting fixes.
- gzipped multiboot file support
147 files changed, 28987 insertions, 0 deletions
diff --git a/AUTHORS b/AUTHORS new file mode 100644 index 00000000..3f2ad120 --- /dev/null +++ b/AUTHORS @@ -0,0 +1,6 @@ +Eric Biederman <ebiederm@xmission.com> +Albert Herranz +Jesse Barnes <jbarnes@sgi.com> +Khalid Aziz <khalid.aziz@hp.com> +Hariprasad Nellitheertha <hari@in.ibm.com> +Tim Deegan <tjd21@cl.cam.ac.uk>
\ No newline at end of file diff --git a/COPYING b/COPYING new file mode 100644 index 00000000..a52b16e4 --- /dev/null +++ b/COPYING @@ -0,0 +1,341 @@ + + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc. + 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. By contrast, the GNU General Public +License is intended to guarantee your freedom to share and change free +software--to make sure the software is free for all its users. This +General Public License applies to most of the Free Software +Foundation's software and to any other program whose authors commit to +using it. (Some other Free Software Foundation software is covered by +the GNU Library General Public License instead.) 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See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + +Also add information on how to contact you by electronic and paper mail. + +If the program is interactive, make it output a short notice like this +when it starts in an interactive mode: + + Gnomovision version 69, Copyright (C) 19yy name of author + Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + <signature of Ty Coon>, 1 April 1989 + Ty Coon, President of Vice + +This General Public License does not permit incorporating your program into +proprietary programs. If your program is a subroutine library, you may +consider it more useful to permit linking proprietary applications with the +library. If this is what you want to do, use the GNU Library General +Public License instead of this License. diff --git a/Makefile b/Makefile new file mode 100644 index 00000000..c75af67b --- /dev/null +++ b/Makefile @@ -0,0 +1,249 @@ +# Hey Emacs this is a -*- makefile-*- +include Makefile.conf +VERSION=1.101 +DATE=15 February 2005 +PACKAGE=kexec-tools + +pkgdatadir = $(datadir)/$(PACKAGE) +pkglibdir = $(libdir)/$(PACKAGE) +pkgincludedir = $(includedir)/$(PACKAGE) + +# You can specify DESTDIR on the command line to do a add +# a prefix to the install so it doesn't really happen +# Useful for building binary packages +DESTDIR = + +CPPFLAGS:= -I./include -I./util_lib/include \ + -DVERSION='"$(VERSION)"' -DRELEASE_DATE='"$(DATE)"' \ + $(DEFS) $(EXTRA_CFLAGS) + +PREFIX:=$(OBJDIR)/build +SBINDIR=$(PREFIX)/sbin +BINDIR=$(PREFIX)/bin +LIBEXECDIR=$(PREFIX)/libexec +DATADIR=$(PREFIX)/share +SYSCONFDIR=$(PREFIX)/etc +SHAREDSTATEDIR=$(PREFIX)/com +LOCALSTATEDIR=$(PREFIX)/var +LIBDIR=$(PREFIX)/lib +INFODIR=$(PREFIX)/info +MANDIR=$(PREFIX)/man +MAN1DIR=$(MANDIR)/man1 +MAN2DIR=$(MANDIR)/man2 +MAN3DIR=$(MANDIR)/man3 +MAN4DIR=$(MANDIR)/man4 +MAN5DIR=$(MANDIR)/man5 +MAN6DIR=$(MANDIR)/man6 +MAN7DIR=$(MANDIR)/man7 +MAN8DIR=$(MANDIR)/man8 +INCLUDEDIR=$(PREFIX)/include + +PKGDATADIR=$(DATADIR)/$(PACKAGE) +PKGLIBDIR=$(LIBDIR)/$(PACKAGE) +PKGINCLUDEIR=$(INCLUDEDIR)/$(PACKAGE) + +MAN_PAGES:= kexec/kexec.8 +BINARIES_i386:= $(SBINDIR)/kexec $(PKGLIBDIR)/kexec_test +BINARIES_x86_64:=$(SBINDIR)/kexec $(PKGLIBDIR)/kexec_test +BINARIES:=$(SBINDIR)/kexec $(SBINDIR)/kdump $(BINARIES_$(ARCH)) + +TARGETS:=$(BINARIES) $(MAN_PAGES) + +all: $(TARGETS) + +# cc-option +# Usage: cflags-y += $(call cc-option, -march=winchip-c6, -march=i586) +cc-option = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \ + > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;) + +# Utility function library +# +include util_lib/Makefile + +# +# Stand alone utilities +# +include util/Makefile + +# +# purgatory (code between kernels) +# +include purgatory/Makefile + +# +# kexec (linux booting linux) +# +include kexec/Makefile + + +# kdump (read a crashdump from memory) +# +include kdump/Makefile + +# +# kexec_test (test program) +# +ifeq ($(ARCH),i386) +include kexec_test/Makefile +endif +ifeq ($(ARCH),x86_64) +include kexec_test/Makefile +endif + +GENERATED_SRCS:= ./configure +SPEC=$(OBJDIR)/$(PACKAGE)-$(VERSION).spec +TARBALL=$(OBJDIR)/$(PACKAGE)-$(VERSION).tar.gz +SRCS:=$(shell $(FIND) \ + ./AUTHORS ./COPYING ./News ./TODO \ + ./Makefile ./Makefile.conf.in ./configure.ac \ + ./kexec-tools.spec.in ./config ./doc \ + ./include ./kexec ./purgatory ./kexec_test ./kdump ./util ./util_lib \ + ! -path '*CVS*' ! -name '*~' ! -name '.*' \ + -type f -print ) +SRCS+=$(GENERATED_SRCS) +PSRCS:=$(patsubst ./%,$(PACKAGE)-$(VERSION)/%,$(SRCS)) +PSRCS+=$(PACKAGE)-$(VERSION).spec + +Makefile.conf: Makefile.conf.in configure + /bin/sh ./configure + +configure: configure.ac + autoconf + $(RM) -rf autom4te.cache + +tarball: $(TARBALL) + +$(TARBALL): $(SRCS) $(SPEC) + $(MKDIR) -p $(OBJDIR) + $(RM) -f $(OBJDIR)/$(PACKAGE)-$(VERSION) + $(LN) -s .. $(OBJDIR)/$(PACKAGE)-$(VERSION) + (cd $(OBJDIR); $(TAR) -cf - $(PSRCS) | gzip -9) > $@ + +rpm: $(TARBALL) + $(MKDIR) -p $(OBJDIR)/RPM $(OBJDIR)/SRPM $(OBJDIR)/BUILD $(OBJDIR)/SPECS \ + $(OBJDIR)/TMP $(OBJDIR)/SOURCES + unset MAKEFLAGS MAKELEVEL; \ + $(RPMBUILD) -ta \ + --define '_rpmdir $(OBJDIR)/RPM' \ + --define '_srcrpmdir $(OBJDIR)/SRPM' \ + --define '_builddir $(OBJDIR)/BUILD' \ + --define '_specdir $(OBJDIR)/SPECS' \ + --define '_tmppath $(OBJDIR)/TMP' \ + --define '_sourcedir $(OBJDIR)/SOURCES' \ + $(TARBALL) + +$(SPEC): kexec-tools.spec.in Makefile + $(SED) -e 's,^Version: $$,Version: $(VERSION),' $< > $@ + +echo:: + @echo ARCH=$(ARCH) + @echo BINARIES=$(BINARIES) + @echo TARGETS=$(TARGETS) + @echo CC=$(CC) + @echo AR=$(AR) + @echo LD=$(LD) + +clean: + @$(FIND) $(OBJDIR) ! -name '*.d' -type f | $(XARGS) $(RM) rm -f + @$(RM) -rf rpm + @$(RM) -f config.log config.status config.cache + @$(RM) -f $(TARBALL) + +dist-clean: clean + @$(RM) -rf $(OBJDIR) + @$(FIND) . -type f -name '*~' -o -name '*.orig' | $(XARGS) $(RM) -f + @$(RM) -f Makefile.conf + +maintainer-clean: dist-clean + @$(RM) -f $(GENERATED_SRCS) + + +install: $(TARGETS) + for file in $(TARGETS) ; do \ + if test `$(DIRNAME) $$file` = "$(SBINDIR)" ; then \ + $(MKDIR) -p $(DESTDIR)/$(sbindir)/; \ + $(INSTALL) -m 555 $$file $(DESTDIR)/$(sbindir)/; \ + fi; \ + if test `$(DIRNAME) $$file` = "$(BINDIR)" ; then \ + $(MKDIR) -p $(DESTDIR)/$(bindir)/; \ + $(INSTALL) -m 555 $$file $(DESTDIR)/$(bindir)/; \ + fi; \ + if test `$(DIRNAME) $$file` = "$(LIBEXECDIR)" ; then \ + $(MKDIR) -p $(DESTDIR)/$(libexecdir)/; \ + $(INSTALL) -m 555 $$file $(DESTDIR)/$(libexecdir)/; \ + fi; \ + if test `$(DIRNAME) $$file` = "$(DATADIR)" ; then \ + $(MKDIR) -p $(DESTDIR)/$(datadir)/; \ + $(INSTALL) -m 444 $$file $(DESTDIR)/$(datadir)/; \ + fi; \ + if test `$(DIRNAME) $$file` = "$(SYSCONFDIR)" ; then \ + $(MKDIR) -p $(DESTDIR)/$(sysconfdir)/; \ + $(INSTALL) -m 444 $$file $(DESTDIR)/$(sysconfdir)/; \ + fi; \ + if test `$(DIRNAME) $$file` = "$(SHAREDSTATEDIR)" ; then \ + $(MKDIR) -p $(DESTDIR)/$(sharedstatedir)/; \ + $(INSTALL) -m 444 $$file $(DESTDIR)/$(sharedstatedir)/; \ + fi; \ + if test `$(DIRNAME) $$file` = "$(LOCALSTATEDIR)" ; then \ + $(MKDIR) -p $(DESTDIR)/$(localstatedir)/; \ + $(INSTALL) -m 444 $$file $(DESTDIR)/$(localstatedir)/; \ + fi; \ + if test `$(DIRNAME) $$file` = "$(LIBDIR)" ; then \ + $(MKDIR) -p $(DESTDIR)/$(libdir)/; \ + $(INSTALL) -m 444 $$file $(DESTDIR)/$(libdir)/; \ + fi; \ + if test `$(DIRNAME) $$file` = "$(INFODIR)" ; then \ + $(MKDIR) -p $(DESTDIR)/$(infodir)/; \ + $(INSTALL) -m 444 $$file $(DESTDIR)/$(infodir)/; \ + fi; \ + if test `$(DIRNAME) $$file` = "$(MAN1DIR)" ; then \ + $(MKDIR) -p $(DESTDIR)/$(mandir)/man1; \ + $(INSTALL) -m 444 $$file $(DESTDIR)/$(mandir)/man1; \ + fi; \ + if test `$(DIRNAME) $$file` = "$(MAN2DIR)" ; then \ + $(MKDIR) -p $(DESTDIR)/$(mandir)/man2; \ + $(INSTALL) -m 444 $$file $(DESTDIR)/$(mandir)/man2; \ + fi; \ + if test `$(DIRNAME) $$file` = "$(MAN3DIR)" ; then \ + $(MKDIR) -p $(DESTDIR)/$(mandir)/man3/; \ + $(INSTALL) -m 444 $$file $(DESTDIR)/$(mandir)/man3/; \ + fi; \ + if test `$(DIRNAME) $$file` = "$(MAN4DIR)" ; then \ + $(MKDIR) -p $(DESTDIR)/$(mandir)/man4/; \ + $(INSTALL) -m 444 $$file $(DESTDIR)/$(mandir)/man4/; \ + fi; \ + if test `$(DIRNAME) $$file` = "$(MAN5DIR)" ; then \ + $(MKDIR) -p $(DESTDIR)/$(mandir)/man5/; \ + $(INSTALL) -m 444 $$file $(DESTDIR)/$(mandir)/man5/; \ + fi; \ + if test `$(DIRNAME) $$file` = "$(MAN6DIR)" ; then \ + $(MKDIR) -p $(DESTDIR)/$(mandir)/man6/; \ + $(INSTALL) -m 444 $$file $(DESTDIR)/$(mandir)/man6/; \ + fi; \ + if test `$(DIRNAME) $$file` = "$(MAN7DIR)" ; then \ + $(MKDIR) -p $(DESTDIR)/$(mandir)/man7/; \ + $(INSTALL) -m 444 $$file $(DESTDIR)/$(mandir)/man7/; \ + fi; \ + if test `$(DIRNAME) $$file` = "$(MAN8DIR)" ; then \ + $(MKDIR) -p $(DESTDIR)/$(mandir)/man8/; \ + $(INSTALL) -m 444 $$file $(DESTDIR)/$(mandir)/man8/; \ + fi; \ + if test `$(DIRNAME) $$file` = "$(INCLUDEDIR)" ; then \ + $(MKDIR) -p $(DESTDIR)/$(includedir)/; \ + $(INSTALL) -m 444 $$file $(DESTDIR)/$(includedir)/; \ + fi; \ + if test `$(DIRNAME) $$file` = "$(PKGDATADIR)" ; then \ + $(MKDIR) -p $(DESTDIR)/$(pkgdatadir)/; \ + $(INSTALL) -m 444 $$file $(DESTDIR)/$(pkgdatadir)/; \ + fi; \ + if test `$(DIRNAME) $$file` = "$(PKGLIBDIR)" ; then \ + $(MKDIR) -p $(DESTDIR)/$(pkglibdir)/; \ + $(INSTALL) -m 444 $$file $(DESTDIR)/$(pkglibdir)/; \ + fi; \ + if test `$(DIRNAME) $$file` = "$(PKGINCLUDEDIR)" ; then \ + $(MKDIR) -p $(DESTDIR)/$(pkgincludedir)/; \ + $(INSTALL) -m 444 $$file $(DESTDIR)/$(pkgincludedir)/; \ + fi; \ + done + +.PHONY: echo install all clean dist-clean maintainer-clean tarball rpm diff --git a/Makefile.conf.in b/Makefile.conf.in new file mode 100644 index 00000000..40111b23 --- /dev/null +++ b/Makefile.conf.in @@ -0,0 +1,52 @@ +# Hey Emacs this is a -*- makefile-*- + +prefix=@prefix@ +exec_prefix=@exec_prefix@ + +bindir=@bindir@ +sbindir=@sbindir@ +libexecdir=@libexecdir@ +datadir=@datadir@ +sysconfdir=@sysconfdir@ +sharedstatedir=@sharedstatedir@ +localstatedir=@localstatedir@ +libdir=@libdir@ +infodir=@infodir@ +mandir=@mandir@ +includedir=@includedir@ + +DEFS=@DEFS@ +LIBS=@LIBS@ + +# The target architecture +ARCH =@ARCH@ +OBJDIR=@OBJDIR@ + +# Compiler for building kexec +CC =@CC@ +CPP =@CPP@ +LD =@LD@ +AS =@AS@ +OBJCOPY =@OBJCOPY@ +AR =@AR@ +CFLAGS =@CFLAGS@ +EXTRA_CFLAGS=@EXTRA_CFLAGS@ +LDFLAGS =@LDFLAGS@ + +# Utilities called by the makefiles +INSTALL=@INSTALL@ +MKDIR=@MKDIR@ +RM=@RM@ +CP=@CP@ +LN=@LN@ +TAR=@TAR@ +RPMBUILD=@RPMBUILD@ +SED=@SED@ +FIND=@FIND@ +XARGS=@XARGS@ +DIRNAME=@DIRNAME@ + +# C compiler for building utilities to use +# during the build +BUILD_CC=@BUILD_CC@ +BUILD_CFLAGS=@BUILD_CFLAGS@ $(DEFS) @@ -0,0 +1,73 @@ +* 2.0 + - In purgatory added -fno-zero-initialized-in-bss to prevent issues with + recent versions of gcc + - Add an option to configure to disable zlib support + - Add mismatched architecture support + - Updated the x86 architecture help + - Updated the x86_64 architecture help + - Fixed bzImage support + - Added support for finding either the highest or lowest usable window. + - Change the version number to 2.0 to reflect the major change in + the code base. 1.99 was effectively the release canidate. +* 1.99 + - Rearchitect so the code is maintainable. + - Add multiboot support + - Add ia64 support + - Add beoboot image support + - Create generic elf loader code. + - Created the relocated shared object purgatory to hold + the code that runs between kernels. + - Added a configure script + - Added an rpm target + - Added kexec on panic support + - Initial stab at adding documentation + - Added loader support for ET_DYN objects +* 1.98 + - Add mysteriously dropped changes to make x86_64 work + - Update the distclean target to remove *.orig and *~ files +* 1.97 + - Add support for cross compiling x86_64 +* 1.96 + - add x86_64 support + - add support for linux style arguments to the elf32-x86 loader + - disable clearing of cr4 on x86 +* 1.95 + - add kexec-zImage-ppc64.c source file + - GameCube/PPC32 sync'ed to 1.94 + - use syscall() to call sys_kexec_load() and reboot() + - add kexec-syscall.h, remove kexec-syscall.c + - makefiles know about ARCH-es + - add noifdown kexec option (Albert Herranz) +* 1.94 + - revert a bad 1.92 change (not setting optind & opterr for subsequent + calls to getopt_long()) +* 1.93 + - restored "shutdown" functionality; + - more help/usage text clarification; + - add GPLv2 license to source files (with permission from Eric Biederman) +* 1.92 + - my_kexec(): call kexec() only one time; + - add "unload" option; + - fix some compiler warnings about "<var> might be used uninitialized"; + - commented out shutdown capability since it was unreachable; +* 1.91 + - fix "-t" option: strcmp() was inverted (Albert Herranz) + - check specified kernel image file for file type (Albert Herranz) +* 1.9 + - change reboot function to return type long (was int) + - use kexec reserved syscall numbers (in Linux 2.6.6-mm3) +* 1.8 + - Fixed bug where ramdisk wasn't loaded when specified + - Memory information is now read from /proc/iomem. + Information that is not needed is ignored. +* 1.7 + - Update to new tentative syscall number.... +* 1.6 + - Redo all of the command line arguments. + - Use the 32-bit kernel entry point. + - Work around a failure to clear %cr4. +* 1.5 + - Port to a new kernel interface (Hopefully the final one). + - Start working on setting up legacy hardware + - Add --load and --exec options so the parts can be done at different times. +### @@ -0,0 +1,11 @@ +- Restore enough state that DOS/arbitrary BIOS calls can be run on some + platforms. Currently disk-related calls are quite likely to blow up. +- x86 filling in other kernel parameters. +- Merge reboot via kexec functionality into /sbin/reboot +- In the kexec-on-panic case preserving memory the both kernels + must use. +- Finish the kexec-on-panic case. +- Improve the documentation +- Add support for loading a boot sector +- Autobuilding of initramfs +### diff --git a/config/config.guess b/config/config.guess new file mode 100755 index 00000000..77c7cbab --- /dev/null +++ b/config/config.guess @@ -0,0 +1,1441 @@ +#! /bin/sh +# Attempt to guess a canonical system name. +# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, +# 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc. + +timestamp='2004-08-13' + +# This file is free software; you can redistribute it and/or modify it +# under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +# +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that program. + +# Originally written by Per Bothner <per@bothner.com>. +# Please send patches to <config-patches@gnu.org>. Submit a context +# diff and a properly formatted ChangeLog entry. +# +# This script attempts to guess a canonical system name similar to +# config.sub. If it succeeds, it prints the system name on stdout, and +# exits with 0. Otherwise, it exits with 1. +# +# The plan is that this can be called by configure scripts if you +# don't specify an explicit build system type. + +me=`echo "$0" | sed -e 's,.*/,,'` + +usage="\ +Usage: $0 [OPTION] + +Output the configuration name of the system \`$me' is run on. + +Operation modes: + -h, --help print this help, then exit + -t, --time-stamp print date of last modification, then exit + -v, --version print version number, then exit + +Report bugs and patches to <config-patches@gnu.org>." + +version="\ +GNU config.guess ($timestamp) + +Originally written by Per Bothner. +Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 +Free Software Foundation, Inc. + +This is free software; see the source for copying conditions. There is NO +warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE." + +help=" +Try \`$me --help' for more information." + +# Parse command line +while test $# -gt 0 ; do + case $1 in + --time-stamp | --time* | -t ) + echo "$timestamp" ; exit 0 ;; + --version | -v ) + echo "$version" ; exit 0 ;; + --help | --h* | -h ) + echo "$usage"; exit 0 ;; + -- ) # Stop option processing + shift; break ;; + - ) # Use stdin as input. + break ;; + -* ) + echo "$me: invalid option $1$help" >&2 + exit 1 ;; + * ) + break ;; + esac +done + +if test $# != 0; then + echo "$me: too many arguments$help" >&2 + exit 1 +fi + +trap 'exit 1' 1 2 15 + +# CC_FOR_BUILD -- compiler used by this script. Note that the use of a +# compiler to aid in system detection is discouraged as it requires +# temporary files to be created and, as you can see below, it is a +# headache to deal with in a portable fashion. + +# Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. We still +# use `HOST_CC' if defined, but it is deprecated. + +# Portable tmp directory creation inspired by the Autoconf team. + +set_cc_for_build=' +trap "exitcode=\$?; (rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null) && exit \$exitcode" 0 ; +trap "rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null; exit 1" 1 2 13 15 ; +: ${TMPDIR=/tmp} ; + { tmp=`(umask 077 && mktemp -d -q "$TMPDIR/cgXXXXXX") 2>/dev/null` && test -n "$tmp" && test -d "$tmp" ; } || + { test -n "$RANDOM" && tmp=$TMPDIR/cg$$-$RANDOM && (umask 077 && mkdir $tmp) ; } || + { tmp=$TMPDIR/cg-$$ && (umask 077 && mkdir $tmp) && echo "Warning: creating insecure temp directory" >&2 ; } || + { echo "$me: cannot create a temporary directory in $TMPDIR" >&2 ; exit 1 ; } ; +dummy=$tmp/dummy ; +tmpfiles="$dummy.c $dummy.o $dummy.rel $dummy" ; +case $CC_FOR_BUILD,$HOST_CC,$CC in + ,,) echo "int x;" > $dummy.c ; + for c in cc gcc c89 c99 ; do + if ($c -c -o $dummy.o $dummy.c) >/dev/null 2>&1 ; then + CC_FOR_BUILD="$c"; break ; + fi ; + done ; + if test x"$CC_FOR_BUILD" = x ; then + CC_FOR_BUILD=no_compiler_found ; + fi + ;; + ,,*) CC_FOR_BUILD=$CC ;; + ,*,*) CC_FOR_BUILD=$HOST_CC ;; +esac ;' + +# This is needed to find uname on a Pyramid OSx when run in the BSD universe. +# (ghazi@noc.rutgers.edu 1994-08-24) +if (test -f /.attbin/uname) >/dev/null 2>&1 ; then + PATH=$PATH:/.attbin ; export PATH +fi + +UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown +UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown +UNAME_SYSTEM=`(uname -s) 2>/dev/null` || UNAME_SYSTEM=unknown +UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown + +# Note: order is significant - the case branches are not exclusive. + +case "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" in + *:NetBSD:*:*) + # NetBSD (nbsd) targets should (where applicable) match one or + # more of the tupples: *-*-netbsdelf*, *-*-netbsdaout*, + # *-*-netbsdecoff* and *-*-netbsd*. For targets that recently + # switched to ELF, *-*-netbsd* would select the old + # object file format. This provides both forward + # compatibility and a consistent mechanism for selecting the + # object file format. + # + # Note: NetBSD doesn't particularly care about the vendor + # portion of the name. We always set it to "unknown". + sysctl="sysctl -n hw.machine_arch" + UNAME_MACHINE_ARCH=`(/sbin/$sysctl 2>/dev/null || \ + /usr/sbin/$sysctl 2>/dev/null || echo unknown)` + case "${UNAME_MACHINE_ARCH}" in + armeb) machine=armeb-unknown ;; + arm*) machine=arm-unknown ;; + sh3el) machine=shl-unknown ;; + sh3eb) machine=sh-unknown ;; + *) machine=${UNAME_MACHINE_ARCH}-unknown ;; + esac + # The Operating System including object format, if it has switched + # to ELF recently, or will in the future. + case "${UNAME_MACHINE_ARCH}" in + arm*|i386|m68k|ns32k|sh3*|sparc|vax) + eval $set_cc_for_build + if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \ + | grep __ELF__ >/dev/null + then + # Once all utilities can be ECOFF (netbsdecoff) or a.out (netbsdaout). + # Return netbsd for either. FIX? + os=netbsd + else + os=netbsdelf + fi + ;; + *) + os=netbsd + ;; + esac + # The OS release + # Debian GNU/NetBSD machines have a different userland, and + # thus, need a distinct triplet. However, they do not need + # kernel version information, so it can be replaced with a + # suitable tag, in the style of linux-gnu. + case "${UNAME_VERSION}" in + Debian*) + release='-gnu' + ;; + *) + release=`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'` + ;; + esac + # Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM: + # contains redundant information, the shorter form: + # CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used. + echo "${machine}-${os}${release}" + exit 0 ;; + amd64:OpenBSD:*:*) + echo x86_64-unknown-openbsd${UNAME_RELEASE} + exit 0 ;; + amiga:OpenBSD:*:*) + echo m68k-unknown-openbsd${UNAME_RELEASE} + exit 0 ;; + cats:OpenBSD:*:*) + echo arm-unknown-openbsd${UNAME_RELEASE} + exit 0 ;; + hp300:OpenBSD:*:*) + echo m68k-unknown-openbsd${UNAME_RELEASE} + exit 0 ;; + luna88k:OpenBSD:*:*) + echo m88k-unknown-openbsd${UNAME_RELEASE} + exit 0 ;; + mac68k:OpenBSD:*:*) + echo m68k-unknown-openbsd${UNAME_RELEASE} + exit 0 ;; + macppc:OpenBSD:*:*) + echo powerpc-unknown-openbsd${UNAME_RELEASE} + exit 0 ;; + mvme68k:OpenBSD:*:*) + echo m68k-unknown-openbsd${UNAME_RELEASE} + exit 0 ;; + mvme88k:OpenBSD:*:*) + echo m88k-unknown-openbsd${UNAME_RELEASE} + exit 0 ;; + mvmeppc:OpenBSD:*:*) + echo powerpc-unknown-openbsd${UNAME_RELEASE} + exit 0 ;; + sgi:OpenBSD:*:*) + echo mips64-unknown-openbsd${UNAME_RELEASE} + exit 0 ;; + sun3:OpenBSD:*:*) + echo m68k-unknown-openbsd${UNAME_RELEASE} + exit 0 ;; + *:OpenBSD:*:*) + echo ${UNAME_MACHINE}-unknown-openbsd${UNAME_RELEASE} + exit 0 ;; + *:ekkoBSD:*:*) + echo ${UNAME_MACHINE}-unknown-ekkobsd${UNAME_RELEASE} + exit 0 ;; + macppc:MirBSD:*:*) + echo powerppc-unknown-mirbsd${UNAME_RELEASE} + exit 0 ;; + *:MirBSD:*:*) + echo ${UNAME_MACHINE}-unknown-mirbsd${UNAME_RELEASE} + exit 0 ;; + alpha:OSF1:*:*) + case $UNAME_RELEASE in + *4.0) + UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'` + ;; + *5.*) + UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $4}'` + ;; + esac + # According to Compaq, /usr/sbin/psrinfo has been available on + # OSF/1 and Tru64 systems produced since 1995. I hope that + # covers most systems running today. This code pipes the CPU + # types through head -n 1, so we only detect the type of CPU 0. + ALPHA_CPU_TYPE=`/usr/sbin/psrinfo -v | sed -n -e 's/^ The alpha \(.*\) processor.*$/\1/p' | head -n 1` + case "$ALPHA_CPU_TYPE" in + "EV4 (21064)") + UNAME_MACHINE="alpha" ;; + "EV4.5 (21064)") + UNAME_MACHINE="alpha" ;; + "LCA4 (21066/21068)") + UNAME_MACHINE="alpha" ;; + "EV5 (21164)") + UNAME_MACHINE="alphaev5" ;; + "EV5.6 (21164A)") + UNAME_MACHINE="alphaev56" ;; + "EV5.6 (21164PC)") + UNAME_MACHINE="alphapca56" ;; + "EV5.7 (21164PC)") + UNAME_MACHINE="alphapca57" ;; + "EV6 (21264)") + UNAME_MACHINE="alphaev6" ;; + "EV6.7 (21264A)") + UNAME_MACHINE="alphaev67" ;; + "EV6.8CB (21264C)") + UNAME_MACHINE="alphaev68" ;; + "EV6.8AL (21264B)") + UNAME_MACHINE="alphaev68" ;; + "EV6.8CX (21264D)") + UNAME_MACHINE="alphaev68" ;; + "EV6.9A (21264/EV69A)") + UNAME_MACHINE="alphaev69" ;; + "EV7 (21364)") + UNAME_MACHINE="alphaev7" ;; + "EV7.9 (21364A)") + UNAME_MACHINE="alphaev79" ;; + esac + # A Pn.n version is a patched version. + # A Vn.n version is a released version. + # A Tn.n version is a released field test version. + # A Xn.n version is an unreleased experimental baselevel. + # 1.2 uses "1.2" for uname -r. + echo ${UNAME_MACHINE}-dec-osf`echo ${UNAME_RELEASE} | sed -e 's/^[PVTX]//' | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'` + exit 0 ;; + Alpha\ *:Windows_NT*:*) + # How do we know it's Interix rather than the generic POSIX subsystem? + # Should we change UNAME_MACHINE based on the output of uname instead + # of the specific Alpha model? + echo alpha-pc-interix + exit 0 ;; + 21064:Windows_NT:50:3) + echo alpha-dec-winnt3.5 + exit 0 ;; + Amiga*:UNIX_System_V:4.0:*) + echo m68k-unknown-sysv4 + exit 0;; + *:[Aa]miga[Oo][Ss]:*:*) + echo ${UNAME_MACHINE}-unknown-amigaos + exit 0 ;; + *:[Mm]orph[Oo][Ss]:*:*) + echo ${UNAME_MACHINE}-unknown-morphos + exit 0 ;; + *:OS/390:*:*) + echo i370-ibm-openedition + exit 0 ;; + *:OS400:*:*) + echo powerpc-ibm-os400 + exit 0 ;; + arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*) + echo arm-acorn-riscix${UNAME_RELEASE} + exit 0;; + SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*) + echo hppa1.1-hitachi-hiuxmpp + exit 0;; + Pyramid*:OSx*:*:* | MIS*:OSx*:*:* | MIS*:SMP_DC-OSx*:*:*) + # akee@wpdis03.wpafb.af.mil (Earle F. Ake) contributed MIS and NILE. + if test "`(/bin/universe) 2>/dev/null`" = att ; then + echo pyramid-pyramid-sysv3 + else + echo pyramid-pyramid-bsd + fi + exit 0 ;; + NILE*:*:*:dcosx) + echo pyramid-pyramid-svr4 + exit 0 ;; + DRS?6000:unix:4.0:6*) + echo sparc-icl-nx6 + exit 0 ;; + DRS?6000:UNIX_SV:4.2*:7*) + case `/usr/bin/uname -p` in + sparc) echo sparc-icl-nx7 && exit 0 ;; + esac ;; + sun4H:SunOS:5.*:*) + echo sparc-hal-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` + exit 0 ;; + sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*) + echo sparc-sun-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` + exit 0 ;; + i86pc:SunOS:5.*:*) + echo i386-pc-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` + exit 0 ;; + sun4*:SunOS:6*:*) + # According to config.sub, this is the proper way to canonicalize + # SunOS6. Hard to guess exactly what SunOS6 will be like, but + # it's likely to be more like Solaris than SunOS4. + echo sparc-sun-solaris3`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` + exit 0 ;; + sun4*:SunOS:*:*) + case "`/usr/bin/arch -k`" in + Series*|S4*) + UNAME_RELEASE=`uname -v` + ;; + esac + # Japanese Language versions have a version number like `4.1.3-JL'. + echo sparc-sun-sunos`echo ${UNAME_RELEASE}|sed -e 's/-/_/'` + exit 0 ;; + sun3*:SunOS:*:*) + echo m68k-sun-sunos${UNAME_RELEASE} + exit 0 ;; + sun*:*:4.2BSD:*) + UNAME_RELEASE=`(sed 1q /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null` + test "x${UNAME_RELEASE}" = "x" && UNAME_RELEASE=3 + case "`/bin/arch`" in + sun3) + echo m68k-sun-sunos${UNAME_RELEASE} + ;; + sun4) + echo sparc-sun-sunos${UNAME_RELEASE} + ;; + esac + exit 0 ;; + aushp:SunOS:*:*) + echo sparc-auspex-sunos${UNAME_RELEASE} + exit 0 ;; + # The situation for MiNT is a little confusing. The machine name + # can be virtually everything (everything which is not + # "atarist" or "atariste" at least should have a processor + # > m68000). The system name ranges from "MiNT" over "FreeMiNT" + # to the lowercase version "mint" (or "freemint"). Finally + # the system name "TOS" denotes a system which is actually not + # MiNT. But MiNT is downward compatible to TOS, so this should + # be no problem. + atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*) + echo m68k-atari-mint${UNAME_RELEASE} + exit 0 ;; + atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*) + echo m68k-atari-mint${UNAME_RELEASE} + exit 0 ;; + *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*) + echo m68k-atari-mint${UNAME_RELEASE} + exit 0 ;; + milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*) + echo m68k-milan-mint${UNAME_RELEASE} + exit 0 ;; + hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*) + echo m68k-hades-mint${UNAME_RELEASE} + exit 0 ;; + *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*) + echo m68k-unknown-mint${UNAME_RELEASE} + exit 0 ;; + m68k:machten:*:*) + echo m68k-apple-machten${UNAME_RELEASE} + exit 0 ;; + powerpc:machten:*:*) + echo powerpc-apple-machten${UNAME_RELEASE} + exit 0 ;; + RISC*:Mach:*:*) + echo mips-dec-mach_bsd4.3 + exit 0 ;; + RISC*:ULTRIX:*:*) + echo mips-dec-ultrix${UNAME_RELEASE} + exit 0 ;; + VAX*:ULTRIX*:*:*) + echo vax-dec-ultrix${UNAME_RELEASE} + exit 0 ;; + 2020:CLIX:*:* | 2430:CLIX:*:*) + echo clipper-intergraph-clix${UNAME_RELEASE} + exit 0 ;; + mips:*:*:UMIPS | mips:*:*:RISCos) + eval $set_cc_for_build + sed 's/^ //' << EOF >$dummy.c +#ifdef __cplusplus +#include <stdio.h> /* for printf() prototype */ + int main (int argc, char *argv[]) { +#else + int main (argc, argv) int argc; char *argv[]; { +#endif + #if defined (host_mips) && defined (MIPSEB) + #if defined (SYSTYPE_SYSV) + printf ("mips-mips-riscos%ssysv\n", argv[1]); exit (0); + #endif + #if defined (SYSTYPE_SVR4) + printf ("mips-mips-riscos%ssvr4\n", argv[1]); exit (0); + #endif + #if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD) + printf ("mips-mips-riscos%sbsd\n", argv[1]); exit (0); + #endif + #endif + exit (-1); + } +EOF + $CC_FOR_BUILD -o $dummy $dummy.c \ + && $dummy `echo "${UNAME_RELEASE}" | sed -n 's/\([0-9]*\).*/\1/p'` \ + && exit 0 + echo mips-mips-riscos${UNAME_RELEASE} + exit 0 ;; + Motorola:PowerMAX_OS:*:*) + echo powerpc-motorola-powermax + exit 0 ;; + Motorola:*:4.3:PL8-*) + echo powerpc-harris-powermax + exit 0 ;; + Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*) + echo powerpc-harris-powermax + exit 0 ;; + Night_Hawk:Power_UNIX:*:*) + echo powerpc-harris-powerunix + exit 0 ;; + m88k:CX/UX:7*:*) + echo m88k-harris-cxux7 + exit 0 ;; + m88k:*:4*:R4*) + echo m88k-motorola-sysv4 + exit 0 ;; + m88k:*:3*:R3*) + echo m88k-motorola-sysv3 + exit 0 ;; + AViiON:dgux:*:*) + # DG/UX returns AViiON for all architectures + UNAME_PROCESSOR=`/usr/bin/uname -p` + if [ $UNAME_PROCESSOR = mc88100 ] || [ $UNAME_PROCESSOR = mc88110 ] + then + if [ ${TARGET_BINARY_INTERFACE}x = m88kdguxelfx ] || \ + [ ${TARGET_BINARY_INTERFACE}x = x ] + then + echo m88k-dg-dgux${UNAME_RELEASE} + else + echo m88k-dg-dguxbcs${UNAME_RELEASE} + fi + else + echo i586-dg-dgux${UNAME_RELEASE} + fi + exit 0 ;; + M88*:DolphinOS:*:*) # DolphinOS (SVR3) + echo m88k-dolphin-sysv3 + exit 0 ;; + M88*:*:R3*:*) + # Delta 88k system running SVR3 + echo m88k-motorola-sysv3 + exit 0 ;; + XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3) + echo m88k-tektronix-sysv3 + exit 0 ;; + Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD) + echo m68k-tektronix-bsd + exit 0 ;; + *:IRIX*:*:*) + echo mips-sgi-irix`echo ${UNAME_RELEASE}|sed -e 's/-/_/g'` + exit 0 ;; + ????????:AIX?:[12].1:2) # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX. + echo romp-ibm-aix # uname -m gives an 8 hex-code CPU id + exit 0 ;; # Note that: echo "'`uname -s`'" gives 'AIX ' + i*86:AIX:*:*) + echo i386-ibm-aix + exit 0 ;; + ia64:AIX:*:*) + if [ -x /usr/bin/oslevel ] ; then + IBM_REV=`/usr/bin/oslevel` + else + IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE} + fi + echo ${UNAME_MACHINE}-ibm-aix${IBM_REV} + exit 0 ;; + *:AIX:2:3) + if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then + eval $set_cc_for_build + sed 's/^ //' << EOF >$dummy.c + #include <sys/systemcfg.h> + + main() + { + if (!__power_pc()) + exit(1); + puts("powerpc-ibm-aix3.2.5"); + exit(0); + } +EOF + $CC_FOR_BUILD -o $dummy $dummy.c && $dummy && exit 0 + echo rs6000-ibm-aix3.2.5 + elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then + echo rs6000-ibm-aix3.2.4 + else + echo rs6000-ibm-aix3.2 + fi + exit 0 ;; + *:AIX:*:[45]) + IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'` + if /usr/sbin/lsattr -El ${IBM_CPU_ID} | grep ' POWER' >/dev/null 2>&1; then + IBM_ARCH=rs6000 + else + IBM_ARCH=powerpc + fi + if [ -x /usr/bin/oslevel ] ; then + IBM_REV=`/usr/bin/oslevel` + else + IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE} + fi + echo ${IBM_ARCH}-ibm-aix${IBM_REV} + exit 0 ;; + *:AIX:*:*) + echo rs6000-ibm-aix + exit 0 ;; + ibmrt:4.4BSD:*|romp-ibm:BSD:*) + echo romp-ibm-bsd4.4 + exit 0 ;; + ibmrt:*BSD:*|romp-ibm:BSD:*) # covers RT/PC BSD and + echo romp-ibm-bsd${UNAME_RELEASE} # 4.3 with uname added to + exit 0 ;; # report: romp-ibm BSD 4.3 + *:BOSX:*:*) + echo rs6000-bull-bosx + exit 0 ;; + DPX/2?00:B.O.S.:*:*) + echo m68k-bull-sysv3 + exit 0 ;; + 9000/[34]??:4.3bsd:1.*:*) + echo m68k-hp-bsd + exit 0 ;; + hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*) + echo m68k-hp-bsd4.4 + exit 0 ;; + 9000/[34678]??:HP-UX:*:*) + HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'` + case "${UNAME_MACHINE}" in + 9000/31? ) HP_ARCH=m68000 ;; + 9000/[34]?? ) HP_ARCH=m68k ;; + 9000/[678][0-9][0-9]) + if [ -x /usr/bin/getconf ]; then + sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null` + sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null` + case "${sc_cpu_version}" in + 523) HP_ARCH="hppa1.0" ;; # CPU_PA_RISC1_0 + 528) HP_ARCH="hppa1.1" ;; # CPU_PA_RISC1_1 + 532) # CPU_PA_RISC2_0 + case "${sc_kernel_bits}" in + 32) HP_ARCH="hppa2.0n" ;; + 64) HP_ARCH="hppa2.0w" ;; + '') HP_ARCH="hppa2.0" ;; # HP-UX 10.20 + esac ;; + esac + fi + if [ "${HP_ARCH}" = "" ]; then + eval $set_cc_for_build + sed 's/^ //' << EOF >$dummy.c + + #define _HPUX_SOURCE + #include <stdlib.h> + #include <unistd.h> + + int main () + { + #if defined(_SC_KERNEL_BITS) + long bits = sysconf(_SC_KERNEL_BITS); + #endif + long cpu = sysconf (_SC_CPU_VERSION); + + switch (cpu) + { + case CPU_PA_RISC1_0: puts ("hppa1.0"); break; + case CPU_PA_RISC1_1: puts ("hppa1.1"); break; + case CPU_PA_RISC2_0: + #if defined(_SC_KERNEL_BITS) + switch (bits) + { + case 64: puts ("hppa2.0w"); break; + case 32: puts ("hppa2.0n"); break; + default: puts ("hppa2.0"); break; + } break; + #else /* !defined(_SC_KERNEL_BITS) */ + puts ("hppa2.0"); break; + #endif + default: puts ("hppa1.0"); break; + } + exit (0); + } +EOF + (CCOPTS= $CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null) && HP_ARCH=`$dummy` + test -z "$HP_ARCH" && HP_ARCH=hppa + fi ;; + esac + if [ ${HP_ARCH} = "hppa2.0w" ] + then + # avoid double evaluation of $set_cc_for_build + test -n "$CC_FOR_BUILD" || eval $set_cc_for_build + if echo __LP64__ | (CCOPTS= $CC_FOR_BUILD -E -) | grep __LP64__ >/dev/null + then + HP_ARCH="hppa2.0w" + else + HP_ARCH="hppa64" + fi + fi + echo ${HP_ARCH}-hp-hpux${HPUX_REV} + exit 0 ;; + ia64:HP-UX:*:*) + HPUX_REV=`echo ${UNAME_RELEASE}|sed -e 's/[^.]*.[0B]*//'` + echo ia64-hp-hpux${HPUX_REV} + exit 0 ;; + 3050*:HI-UX:*:*) + eval $set_cc_for_build + sed 's/^ //' << EOF >$dummy.c + #include <unistd.h> + int + main () + { + long cpu = sysconf (_SC_CPU_VERSION); + /* The order matters, because CPU_IS_HP_MC68K erroneously returns + true for CPU_PA_RISC1_0. CPU_IS_PA_RISC returns correct + results, however. */ + if (CPU_IS_PA_RISC (cpu)) + { + switch (cpu) + { + case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break; + case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break; + case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break; + default: puts ("hppa-hitachi-hiuxwe2"); break; + } + } + else if (CPU_IS_HP_MC68K (cpu)) + puts ("m68k-hitachi-hiuxwe2"); + else puts ("unknown-hitachi-hiuxwe2"); + exit (0); + } +EOF + $CC_FOR_BUILD -o $dummy $dummy.c && $dummy && exit 0 + echo unknown-hitachi-hiuxwe2 + exit 0 ;; + 9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:* ) + echo hppa1.1-hp-bsd + exit 0 ;; + 9000/8??:4.3bsd:*:*) + echo hppa1.0-hp-bsd + exit 0 ;; + *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*) + echo hppa1.0-hp-mpeix + exit 0 ;; + hp7??:OSF1:*:* | hp8?[79]:OSF1:*:* ) + echo hppa1.1-hp-osf + exit 0 ;; + hp8??:OSF1:*:*) + echo hppa1.0-hp-osf + exit 0 ;; + i*86:OSF1:*:*) + if [ -x /usr/sbin/sysversion ] ; then + echo ${UNAME_MACHINE}-unknown-osf1mk + else + echo ${UNAME_MACHINE}-unknown-osf1 + fi + exit 0 ;; + parisc*:Lites*:*:*) + echo hppa1.1-hp-lites + exit 0 ;; + C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*) + echo c1-convex-bsd + exit 0 ;; + C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*) + if getsysinfo -f scalar_acc + then echo c32-convex-bsd + else echo c2-convex-bsd + fi + exit 0 ;; + C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*) + echo c34-convex-bsd + exit 0 ;; + C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*) + echo c38-convex-bsd + exit 0 ;; + C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*) + echo c4-convex-bsd + exit 0 ;; + CRAY*Y-MP:*:*:*) + echo ymp-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' + exit 0 ;; + CRAY*[A-Z]90:*:*:*) + echo ${UNAME_MACHINE}-cray-unicos${UNAME_RELEASE} \ + | sed -e 's/CRAY.*\([A-Z]90\)/\1/' \ + -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \ + -e 's/\.[^.]*$/.X/' + exit 0 ;; + CRAY*TS:*:*:*) + echo t90-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' + exit 0 ;; + CRAY*T3E:*:*:*) + echo alphaev5-cray-unicosmk${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' + exit 0 ;; + CRAY*SV1:*:*:*) + echo sv1-cray-unicos${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' + exit 0 ;; + *:UNICOS/mp:*:*) + echo craynv-cray-unicosmp${UNAME_RELEASE} | sed -e 's/\.[^.]*$/.X/' + exit 0 ;; + F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*) + FUJITSU_PROC=`uname -m | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'` + FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'` + FUJITSU_REL=`echo ${UNAME_RELEASE} | sed -e 's/ /_/'` + echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" + exit 0 ;; + 5000:UNIX_System_V:4.*:*) + FUJITSU_SYS=`uname -p | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/\///'` + FUJITSU_REL=`echo ${UNAME_RELEASE} | tr 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz' | sed -e 's/ /_/'` + echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}" + exit 0 ;; + i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*) + echo ${UNAME_MACHINE}-pc-bsdi${UNAME_RELEASE} + exit 0 ;; + sparc*:BSD/OS:*:*) + echo sparc-unknown-bsdi${UNAME_RELEASE} + exit 0 ;; + *:BSD/OS:*:*) + echo ${UNAME_MACHINE}-unknown-bsdi${UNAME_RELEASE} + exit 0 ;; + *:FreeBSD:*:*) + echo ${UNAME_MACHINE}-unknown-freebsd`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` + exit 0 ;; + i*:CYGWIN*:*) + echo ${UNAME_MACHINE}-pc-cygwin + exit 0 ;; + i*:MINGW*:*) + echo ${UNAME_MACHINE}-pc-mingw32 + exit 0 ;; + i*:PW*:*) + echo ${UNAME_MACHINE}-pc-pw32 + exit 0 ;; + x86:Interix*:[34]*) + echo i586-pc-interix${UNAME_RELEASE}|sed -e 's/\..*//' + exit 0 ;; + [345]86:Windows_95:* | [345]86:Windows_98:* | [345]86:Windows_NT:*) + echo i${UNAME_MACHINE}-pc-mks + exit 0 ;; + i*:Windows_NT*:* | Pentium*:Windows_NT*:*) + # How do we know it's Interix rather than the generic POSIX subsystem? + # It also conflicts with pre-2.0 versions of AT&T UWIN. Should we + # UNAME_MACHINE based on the output of uname instead of i386? + echo i586-pc-interix + exit 0 ;; + i*:UWIN*:*) + echo ${UNAME_MACHINE}-pc-uwin + exit 0 ;; + p*:CYGWIN*:*) + echo powerpcle-unknown-cygwin + exit 0 ;; + prep*:SunOS:5.*:*) + echo powerpcle-unknown-solaris2`echo ${UNAME_RELEASE}|sed -e 's/[^.]*//'` + exit 0 ;; + *:GNU:*:*) + # the GNU system + echo `echo ${UNAME_MACHINE}|sed -e 's,[-/].*$,,'`-unknown-gnu`echo ${UNAME_RELEASE}|sed -e 's,/.*$,,'` + exit 0 ;; + *:GNU/*:*:*) + # other systems with GNU libc and userland + echo ${UNAME_MACHINE}-unknown-`echo ${UNAME_SYSTEM} | sed 's,^[^/]*/,,' | tr '[A-Z]' '[a-z]'``echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'`-gnu + exit 0 ;; + i*86:Minix:*:*) + echo ${UNAME_MACHINE}-pc-minix + exit 0 ;; + arm*:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-gnu + exit 0 ;; + cris:Linux:*:*) + echo cris-axis-linux-gnu + exit 0 ;; + ia64:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-gnu + exit 0 ;; + m32r*:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-gnu + exit 0 ;; + m68*:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-gnu + exit 0 ;; + mips:Linux:*:*) + eval $set_cc_for_build + sed 's/^ //' << EOF >$dummy.c + #undef CPU + #undef mips + #undef mipsel + #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL) + CPU=mipsel + #else + #if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB) + CPU=mips + #else + CPU= + #endif + #endif +EOF + eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^CPU=` + test x"${CPU}" != x && echo "${CPU}-unknown-linux-gnu" && exit 0 + ;; + mips64:Linux:*:*) + eval $set_cc_for_build + sed 's/^ //' << EOF >$dummy.c + #undef CPU + #undef mips64 + #undef mips64el + #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL) + CPU=mips64el + #else + #if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB) + CPU=mips64 + #else + CPU= + #endif + #endif +EOF + eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^CPU=` + test x"${CPU}" != x && echo "${CPU}-unknown-linux-gnu" && exit 0 + ;; + ppc:Linux:*:*) + echo powerpc-unknown-linux-gnu + exit 0 ;; + ppc64:Linux:*:*) + echo powerpc64-unknown-linux-gnu + exit 0 ;; + alpha:Linux:*:*) + case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in + EV5) UNAME_MACHINE=alphaev5 ;; + EV56) UNAME_MACHINE=alphaev56 ;; + PCA56) UNAME_MACHINE=alphapca56 ;; + PCA57) UNAME_MACHINE=alphapca56 ;; + EV6) UNAME_MACHINE=alphaev6 ;; + EV67) UNAME_MACHINE=alphaev67 ;; + EV68*) UNAME_MACHINE=alphaev68 ;; + esac + objdump --private-headers /bin/sh | grep ld.so.1 >/dev/null + if test "$?" = 0 ; then LIBC="libc1" ; else LIBC="" ; fi + echo ${UNAME_MACHINE}-unknown-linux-gnu${LIBC} + exit 0 ;; + parisc:Linux:*:* | hppa:Linux:*:*) + # Look for CPU level + case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in + PA7*) echo hppa1.1-unknown-linux-gnu ;; + PA8*) echo hppa2.0-unknown-linux-gnu ;; + *) echo hppa-unknown-linux-gnu ;; + esac + exit 0 ;; + parisc64:Linux:*:* | hppa64:Linux:*:*) + echo hppa64-unknown-linux-gnu + exit 0 ;; + s390:Linux:*:* | s390x:Linux:*:*) + echo ${UNAME_MACHINE}-ibm-linux + exit 0 ;; + sh64*:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-gnu + exit 0 ;; + sh*:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-gnu + exit 0 ;; + sparc:Linux:*:* | sparc64:Linux:*:*) + echo ${UNAME_MACHINE}-unknown-linux-gnu + exit 0 ;; + x86_64:Linux:*:*) + echo x86_64-unknown-linux-gnu + exit 0 ;; + i*86:Linux:*:*) + # The BFD linker knows what the default object file format is, so + # first see if it will tell us. cd to the root directory to prevent + # problems with other programs or directories called `ld' in the path. + # Set LC_ALL=C to ensure ld outputs messages in English. + ld_supported_targets=`cd /; LC_ALL=C ld --help 2>&1 \ + | sed -ne '/supported targets:/!d + s/[ ][ ]*/ /g + s/.*supported targets: *// + s/ .*// + p'` + case "$ld_supported_targets" in + elf32-i386) + TENTATIVE="${UNAME_MACHINE}-pc-linux-gnu" + ;; + a.out-i386-linux) + echo "${UNAME_MACHINE}-pc-linux-gnuaout" + exit 0 ;; + coff-i386) + echo "${UNAME_MACHINE}-pc-linux-gnucoff" + exit 0 ;; + "") + # Either a pre-BFD a.out linker (linux-gnuoldld) or + # one that does not give us useful --help. + echo "${UNAME_MACHINE}-pc-linux-gnuoldld" + exit 0 ;; + esac + # Determine whether the default compiler is a.out or elf + eval $set_cc_for_build + sed 's/^ //' << EOF >$dummy.c + #include <features.h> + #ifdef __ELF__ + # ifdef __GLIBC__ + # if __GLIBC__ >= 2 + LIBC=gnu + # else + LIBC=gnulibc1 + # endif + # else + LIBC=gnulibc1 + # endif + #else + #ifdef __INTEL_COMPILER + LIBC=gnu + #else + LIBC=gnuaout + #endif + #endif + #ifdef __dietlibc__ + LIBC=dietlibc + #endif +EOF + eval `$CC_FOR_BUILD -E $dummy.c 2>/dev/null | grep ^LIBC=` + test x"${LIBC}" != x && echo "${UNAME_MACHINE}-pc-linux-${LIBC}" && exit 0 + test x"${TENTATIVE}" != x && echo "${TENTATIVE}" && exit 0 + ;; + i*86:DYNIX/ptx:4*:*) + # ptx 4.0 does uname -s correctly, with DYNIX/ptx in there. + # earlier versions are messed up and put the nodename in both + # sysname and nodename. + echo i386-sequent-sysv4 + exit 0 ;; + i*86:UNIX_SV:4.2MP:2.*) + # Unixware is an offshoot of SVR4, but it has its own version + # number series starting with 2... + # I am not positive that other SVR4 systems won't match this, + # I just have to hope. -- rms. + # Use sysv4.2uw... so that sysv4* matches it. + echo ${UNAME_MACHINE}-pc-sysv4.2uw${UNAME_VERSION} + exit 0 ;; + i*86:OS/2:*:*) + # If we were able to find `uname', then EMX Unix compatibility + # is probably installed. + echo ${UNAME_MACHINE}-pc-os2-emx + exit 0 ;; + i*86:XTS-300:*:STOP) + echo ${UNAME_MACHINE}-unknown-stop + exit 0 ;; + i*86:atheos:*:*) + echo ${UNAME_MACHINE}-unknown-atheos + exit 0 ;; + i*86:syllable:*:*) + echo ${UNAME_MACHINE}-pc-syllable + exit 0 ;; + i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.0*:*) + echo i386-unknown-lynxos${UNAME_RELEASE} + exit 0 ;; + i*86:*DOS:*:*) + echo ${UNAME_MACHINE}-pc-msdosdjgpp + exit 0 ;; + i*86:*:4.*:* | i*86:SYSTEM_V:4.*:*) + UNAME_REL=`echo ${UNAME_RELEASE} | sed 's/\/MP$//'` + if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then + echo ${UNAME_MACHINE}-univel-sysv${UNAME_REL} + else + echo ${UNAME_MACHINE}-pc-sysv${UNAME_REL} + fi + exit 0 ;; + i*86:*:5:[78]*) + case `/bin/uname -X | grep "^Machine"` in + *486*) UNAME_MACHINE=i486 ;; + *Pentium) UNAME_MACHINE=i586 ;; + *Pent*|*Celeron) UNAME_MACHINE=i686 ;; + esac + echo ${UNAME_MACHINE}-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}${UNAME_VERSION} + exit 0 ;; + i*86:*:3.2:*) + if test -f /usr/options/cb.name; then + UNAME_REL=`sed -n 's/.*Version //p' </usr/options/cb.name` + echo ${UNAME_MACHINE}-pc-isc$UNAME_REL + elif /bin/uname -X 2>/dev/null >/dev/null ; then + UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')` + (/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486 + (/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \ + && UNAME_MACHINE=i586 + (/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \ + && UNAME_MACHINE=i686 + (/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \ + && UNAME_MACHINE=i686 + echo ${UNAME_MACHINE}-pc-sco$UNAME_REL + else + echo ${UNAME_MACHINE}-pc-sysv32 + fi + exit 0 ;; + pc:*:*:*) + # Left here for compatibility: + # uname -m prints for DJGPP always 'pc', but it prints nothing about + # the processor, so we play safe by assuming i386. + echo i386-pc-msdosdjgpp + exit 0 ;; + Intel:Mach:3*:*) + echo i386-pc-mach3 + exit 0 ;; + paragon:*:*:*) + echo i860-intel-osf1 + exit 0 ;; + i860:*:4.*:*) # i860-SVR4 + if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then + echo i860-stardent-sysv${UNAME_RELEASE} # Stardent Vistra i860-SVR4 + else # Add other i860-SVR4 vendors below as they are discovered. + echo i860-unknown-sysv${UNAME_RELEASE} # Unknown i860-SVR4 + fi + exit 0 ;; + mini*:CTIX:SYS*5:*) + # "miniframe" + echo m68010-convergent-sysv + exit 0 ;; + mc68k:UNIX:SYSTEM5:3.51m) + echo m68k-convergent-sysv + exit 0 ;; + M680?0:D-NIX:5.3:*) + echo m68k-diab-dnix + exit 0 ;; + M68*:*:R3V[5678]*:*) + test -r /sysV68 && echo 'm68k-motorola-sysv' && exit 0 ;; + 3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0 | S7501*:*:4.0:3.0) + OS_REL='' + test -r /etc/.relid \ + && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid` + /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ + && echo i486-ncr-sysv4.3${OS_REL} && exit 0 + /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \ + && echo i586-ncr-sysv4.3${OS_REL} && exit 0 ;; + 3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*) + /bin/uname -p 2>/dev/null | grep 86 >/dev/null \ + && echo i486-ncr-sysv4 && exit 0 ;; + m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*) + echo m68k-unknown-lynxos${UNAME_RELEASE} + exit 0 ;; + mc68030:UNIX_System_V:4.*:*) + echo m68k-atari-sysv4 + exit 0 ;; + TSUNAMI:LynxOS:2.*:*) + echo sparc-unknown-lynxos${UNAME_RELEASE} + exit 0 ;; + rs6000:LynxOS:2.*:*) + echo rs6000-unknown-lynxos${UNAME_RELEASE} + exit 0 ;; + PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.0*:*) + echo powerpc-unknown-lynxos${UNAME_RELEASE} + exit 0 ;; + SM[BE]S:UNIX_SV:*:*) + echo mips-dde-sysv${UNAME_RELEASE} + exit 0 ;; + RM*:ReliantUNIX-*:*:*) + echo mips-sni-sysv4 + exit 0 ;; + RM*:SINIX-*:*:*) + echo mips-sni-sysv4 + exit 0 ;; + *:SINIX-*:*:*) + if uname -p 2>/dev/null >/dev/null ; then + UNAME_MACHINE=`(uname -p) 2>/dev/null` + echo ${UNAME_MACHINE}-sni-sysv4 + else + echo ns32k-sni-sysv + fi + exit 0 ;; + PENTIUM:*:4.0*:*) # Unisys `ClearPath HMP IX 4000' SVR4/MP effort + # says <Richard.M.Bartel@ccMail.Census.GOV> + echo i586-unisys-sysv4 + exit 0 ;; + *:UNIX_System_V:4*:FTX*) + # From Gerald Hewes <hewes@openmarket.com>. + # How about differentiating between stratus architectures? -djm + echo hppa1.1-stratus-sysv4 + exit 0 ;; + *:*:*:FTX*) + # From seanf@swdc.stratus.com. + echo i860-stratus-sysv4 + exit 0 ;; + *:VOS:*:*) + # From Paul.Green@stratus.com. + echo hppa1.1-stratus-vos + exit 0 ;; + mc68*:A/UX:*:*) + echo m68k-apple-aux${UNAME_RELEASE} + exit 0 ;; + news*:NEWS-OS:6*:*) + echo mips-sony-newsos6 + exit 0 ;; + R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*) + if [ -d /usr/nec ]; then + echo mips-nec-sysv${UNAME_RELEASE} + else + echo mips-unknown-sysv${UNAME_RELEASE} + fi + exit 0 ;; + BeBox:BeOS:*:*) # BeOS running on hardware made by Be, PPC only. + echo powerpc-be-beos + exit 0 ;; + BeMac:BeOS:*:*) # BeOS running on Mac or Mac clone, PPC only. + echo powerpc-apple-beos + exit 0 ;; + BePC:BeOS:*:*) # BeOS running on Intel PC compatible. + echo i586-pc-beos + exit 0 ;; + SX-4:SUPER-UX:*:*) + echo sx4-nec-superux${UNAME_RELEASE} + exit 0 ;; + SX-5:SUPER-UX:*:*) + echo sx5-nec-superux${UNAME_RELEASE} + exit 0 ;; + SX-6:SUPER-UX:*:*) + echo sx6-nec-superux${UNAME_RELEASE} + exit 0 ;; + Power*:Rhapsody:*:*) + echo powerpc-apple-rhapsody${UNAME_RELEASE} + exit 0 ;; + *:Rhapsody:*:*) + echo ${UNAME_MACHINE}-apple-rhapsody${UNAME_RELEASE} + exit 0 ;; + *:Darwin:*:*) + UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown + case $UNAME_PROCESSOR in + *86) UNAME_PROCESSOR=i686 ;; + unknown) UNAME_PROCESSOR=powerpc ;; + esac + echo ${UNAME_PROCESSOR}-apple-darwin${UNAME_RELEASE} + exit 0 ;; + *:procnto*:*:* | *:QNX:[0123456789]*:*) + UNAME_PROCESSOR=`uname -p` + if test "$UNAME_PROCESSOR" = "x86"; then + UNAME_PROCESSOR=i386 + UNAME_MACHINE=pc + fi + echo ${UNAME_PROCESSOR}-${UNAME_MACHINE}-nto-qnx${UNAME_RELEASE} + exit 0 ;; + *:QNX:*:4*) + echo i386-pc-qnx + exit 0 ;; + NSR-?:NONSTOP_KERNEL:*:*) + echo nsr-tandem-nsk${UNAME_RELEASE} + exit 0 ;; + *:NonStop-UX:*:*) + echo mips-compaq-nonstopux + exit 0 ;; + BS2000:POSIX*:*:*) + echo bs2000-siemens-sysv + exit 0 ;; + DS/*:UNIX_System_V:*:*) + echo ${UNAME_MACHINE}-${UNAME_SYSTEM}-${UNAME_RELEASE} + exit 0 ;; + *:Plan9:*:*) + # "uname -m" is not consistent, so use $cputype instead. 386 + # is converted to i386 for consistency with other x86 + # operating systems. + if test "$cputype" = "386"; then + UNAME_MACHINE=i386 + else + UNAME_MACHINE="$cputype" + fi + echo ${UNAME_MACHINE}-unknown-plan9 + exit 0 ;; + *:TOPS-10:*:*) + echo pdp10-unknown-tops10 + exit 0 ;; + *:TENEX:*:*) + echo pdp10-unknown-tenex + exit 0 ;; + KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*) + echo pdp10-dec-tops20 + exit 0 ;; + XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*) + echo pdp10-xkl-tops20 + exit 0 ;; + *:TOPS-20:*:*) + echo pdp10-unknown-tops20 + exit 0 ;; + *:ITS:*:*) + echo pdp10-unknown-its + exit 0 ;; + SEI:*:*:SEIUX) + echo mips-sei-seiux${UNAME_RELEASE} + exit 0 ;; + *:DragonFly:*:*) + echo ${UNAME_MACHINE}-unknown-dragonfly`echo ${UNAME_RELEASE}|sed -e 's/[-(].*//'` + exit 0 ;; + *:*VMS:*:*) + UNAME_MACHINE=`(uname -p) 2>/dev/null` + case "${UNAME_MACHINE}" in + A*) echo alpha-dec-vms && exit 0 ;; + I*) echo ia64-dec-vms && exit 0 ;; + V*) echo vax-dec-vms && exit 0 ;; + esac +esac + +#echo '(No uname command or uname output not recognized.)' 1>&2 +#echo "${UNAME_MACHINE}:${UNAME_SYSTEM}:${UNAME_RELEASE}:${UNAME_VERSION}" 1>&2 + +eval $set_cc_for_build +cat >$dummy.c <<EOF +#ifdef _SEQUENT_ +# include <sys/types.h> +# include <sys/utsname.h> +#endif +main () +{ +#if defined (sony) +#if defined (MIPSEB) + /* BFD wants "bsd" instead of "newsos". Perhaps BFD should be changed, + I don't know.... */ + printf ("mips-sony-bsd\n"); exit (0); +#else +#include <sys/param.h> + printf ("m68k-sony-newsos%s\n", +#ifdef NEWSOS4 + "4" +#else + "" +#endif + ); exit (0); +#endif +#endif + +#if defined (__arm) && defined (__acorn) && defined (__unix) + printf ("arm-acorn-riscix"); exit (0); +#endif + +#if defined (hp300) && !defined (hpux) + printf ("m68k-hp-bsd\n"); exit (0); +#endif + +#if defined (NeXT) +#if !defined (__ARCHITECTURE__) +#define __ARCHITECTURE__ "m68k" +#endif + int version; + version=`(hostinfo | sed -n 's/.*NeXT Mach \([0-9]*\).*/\1/p') 2>/dev/null`; + if (version < 4) + printf ("%s-next-nextstep%d\n", __ARCHITECTURE__, version); + else + printf ("%s-next-openstep%d\n", __ARCHITECTURE__, version); + exit (0); +#endif + +#if defined (MULTIMAX) || defined (n16) +#if defined (UMAXV) + printf ("ns32k-encore-sysv\n"); exit (0); +#else +#if defined (CMU) + printf ("ns32k-encore-mach\n"); exit (0); +#else + printf ("ns32k-encore-bsd\n"); exit (0); +#endif +#endif +#endif + +#if defined (__386BSD__) + printf ("i386-pc-bsd\n"); exit (0); +#endif + +#if defined (sequent) +#if defined (i386) + printf ("i386-sequent-dynix\n"); exit (0); +#endif +#if defined (ns32000) + printf ("ns32k-sequent-dynix\n"); exit (0); +#endif +#endif + +#if defined (_SEQUENT_) + struct utsname un; + + uname(&un); + + if (strncmp(un.version, "V2", 2) == 0) { + printf ("i386-sequent-ptx2\n"); exit (0); + } + if (strncmp(un.version, "V1", 2) == 0) { /* XXX is V1 correct? */ + printf ("i386-sequent-ptx1\n"); exit (0); + } + printf ("i386-sequent-ptx\n"); exit (0); + +#endif + +#if defined (vax) +# if !defined (ultrix) +# include <sys/param.h> +# if defined (BSD) +# if BSD == 43 + printf ("vax-dec-bsd4.3\n"); exit (0); +# else +# if BSD == 199006 + printf ("vax-dec-bsd4.3reno\n"); exit (0); +# else + printf ("vax-dec-bsd\n"); exit (0); +# endif +# endif +# else + printf ("vax-dec-bsd\n"); exit (0); +# endif +# else + printf ("vax-dec-ultrix\n"); exit (0); +# endif +#endif + +#if defined (alliant) && defined (i860) + printf ("i860-alliant-bsd\n"); exit (0); +#endif + + exit (1); +} +EOF + +$CC_FOR_BUILD -o $dummy $dummy.c 2>/dev/null && $dummy && exit 0 + +# Apollos put the system type in the environment. + +test -d /usr/apollo && { echo ${ISP}-apollo-${SYSTYPE}; exit 0; } + +# Convex versions that predate uname can use getsysinfo(1) + +if [ -x /usr/convex/getsysinfo ] +then + case `getsysinfo -f cpu_type` in + c1*) + echo c1-convex-bsd + exit 0 ;; + c2*) + if getsysinfo -f scalar_acc + then echo c32-convex-bsd + else echo c2-convex-bsd + fi + exit 0 ;; + c34*) + echo c34-convex-bsd + exit 0 ;; + c38*) + echo c38-convex-bsd + exit 0 ;; + c4*) + echo c4-convex-bsd + exit 0 ;; + esac +fi + +cat >&2 <<EOF +$0: unable to guess system type + +This script, last modified $timestamp, has failed to recognize +the operating system you are using. It is advised that you +download the most up to date version of the config scripts from + + ftp://ftp.gnu.org/pub/gnu/config/ + +If the version you run ($0) is already up to date, please +send the following data and any information you think might be +pertinent to <config-patches@gnu.org> in order to provide the needed +information to handle your system. + +config.guess timestamp = $timestamp + +uname -m = `(uname -m) 2>/dev/null || echo unknown` +uname -r = `(uname -r) 2>/dev/null || echo unknown` +uname -s = `(uname -s) 2>/dev/null || echo unknown` +uname -v = `(uname -v) 2>/dev/null || echo unknown` + +/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null` +/bin/uname -X = `(/bin/uname -X) 2>/dev/null` + +hostinfo = `(hostinfo) 2>/dev/null` +/bin/universe = `(/bin/universe) 2>/dev/null` +/usr/bin/arch -k = `(/usr/bin/arch -k) 2>/dev/null` +/bin/arch = `(/bin/arch) 2>/dev/null` +/usr/bin/oslevel = `(/usr/bin/oslevel) 2>/dev/null` +/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null` + +UNAME_MACHINE = ${UNAME_MACHINE} +UNAME_RELEASE = ${UNAME_RELEASE} +UNAME_SYSTEM = ${UNAME_SYSTEM} +UNAME_VERSION = ${UNAME_VERSION} +EOF + +exit 1 + +# Local variables: +# eval: (add-hook 'write-file-hooks 'time-stamp) +# time-stamp-start: "timestamp='" +# time-stamp-format: "%:y-%02m-%02d" +# time-stamp-end: "'" +# End: diff --git a/config/config.sub b/config/config.sub new file mode 100755 index 00000000..ac6de986 --- /dev/null +++ b/config/config.sub @@ -0,0 +1,1552 @@ +#! /bin/sh +# Configuration validation subroutine script. +# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, +# 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc. + +timestamp='2004-06-24' + +# This file is (in principle) common to ALL GNU software. +# The presence of a machine in this file suggests that SOME GNU software +# can handle that machine. It does not imply ALL GNU software can. +# +# This file is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, +# Boston, MA 02111-1307, USA. + +# As a special exception to the GNU General Public License, if you +# distribute this file as part of a program that contains a +# configuration script generated by Autoconf, you may include it under +# the same distribution terms that you use for the rest of that program. + +# Please send patches to <config-patches@gnu.org>. Submit a context +# diff and a properly formatted ChangeLog entry. +# +# Configuration subroutine to validate and canonicalize a configuration type. +# Supply the specified configuration type as an argument. +# If it is invalid, we print an error message on stderr and exit with code 1. +# Otherwise, we print the canonical config type on stdout and succeed. + +# This file is supposed to be the same for all GNU packages +# and recognize all the CPU types, system types and aliases +# that are meaningful with *any* GNU software. +# Each package is responsible for reporting which valid configurations +# it does not support. The user should be able to distinguish +# a failure to support a valid configuration from a meaningless +# configuration. + +# The goal of this file is to map all the various variations of a given +# machine specification into a single specification in the form: +# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM +# or in some cases, the newer four-part form: +# CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM +# It is wrong to echo any other type of specification. + +me=`echo "$0" | sed -e 's,.*/,,'` + +usage="\ +Usage: $0 [OPTION] CPU-MFR-OPSYS + $0 [OPTION] ALIAS + +Canonicalize a configuration name. + +Operation modes: + -h, --help print this help, then exit + -t, --time-stamp print date of last modification, then exit + -v, --version print version number, then exit + +Report bugs and patches to <config-patches@gnu.org>." + +version="\ +GNU config.sub ($timestamp) + +Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 +Free Software Foundation, Inc. + +This is free software; see the source for copying conditions. There is NO +warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE." + +help=" +Try \`$me --help' for more information." + +# Parse command line +while test $# -gt 0 ; do + case $1 in + --time-stamp | --time* | -t ) + echo "$timestamp" ; exit 0 ;; + --version | -v ) + echo "$version" ; exit 0 ;; + --help | --h* | -h ) + echo "$usage"; exit 0 ;; + -- ) # Stop option processing + shift; break ;; + - ) # Use stdin as input. + break ;; + -* ) + echo "$me: invalid option $1$help" + exit 1 ;; + + *local*) + # First pass through any local machine types. + echo $1 + exit 0;; + + * ) + break ;; + esac +done + +case $# in + 0) echo "$me: missing argument$help" >&2 + exit 1;; + 1) ;; + *) echo "$me: too many arguments$help" >&2 + exit 1;; +esac + +# Separate what the user gave into CPU-COMPANY and OS or KERNEL-OS (if any). +# Here we must recognize all the valid KERNEL-OS combinations. +maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'` +case $maybe_os in + nto-qnx* | linux-gnu* | linux-dietlibc | linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | \ + kfreebsd*-gnu* | knetbsd*-gnu* | netbsd*-gnu* | storm-chaos* | os2-emx* | rtmk-nova*) + os=-$maybe_os + basic_machine=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\1/'` + ;; + *) + basic_machine=`echo $1 | sed 's/-[^-]*$//'` + if [ $basic_machine != $1 ] + then os=`echo $1 | sed 's/.*-/-/'` + else os=; fi + ;; +esac + +### Let's recognize common machines as not being operating systems so +### that things like config.sub decstation-3100 work. We also +### recognize some manufacturers as not being operating systems, so we +### can provide default operating systems below. +case $os in + -sun*os*) + # Prevent following clause from handling this invalid input. + ;; + -dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \ + -att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \ + -unicom* | -ibm* | -next | -hp | -isi* | -apollo | -altos* | \ + -convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\ + -c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \ + -harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \ + -apple | -axis | -knuth | -cray) + os= + basic_machine=$1 + ;; + -sim | -cisco | -oki | -wec | -winbond) + os= + basic_machine=$1 + ;; + -scout) + ;; + -wrs) + os=-vxworks + basic_machine=$1 + ;; + -chorusos*) + os=-chorusos + basic_machine=$1 + ;; + -chorusrdb) + os=-chorusrdb + basic_machine=$1 + ;; + -hiux*) + os=-hiuxwe2 + ;; + -sco5) + os=-sco3.2v5 + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -sco4) + os=-sco3.2v4 + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -sco3.2.[4-9]*) + os=`echo $os | sed -e 's/sco3.2./sco3.2v/'` + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -sco3.2v[4-9]*) + # Don't forget version if it is 3.2v4 or newer. + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -sco*) + os=-sco3.2v2 + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -udk*) + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -isc) + os=-isc2.2 + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -clix*) + basic_machine=clipper-intergraph + ;; + -isc*) + basic_machine=`echo $1 | sed -e 's/86-.*/86-pc/'` + ;; + -lynx*) + os=-lynxos + ;; + -ptx*) + basic_machine=`echo $1 | sed -e 's/86-.*/86-sequent/'` + ;; + -windowsnt*) + os=`echo $os | sed -e 's/windowsnt/winnt/'` + ;; + -psos*) + os=-psos + ;; + -mint | -mint[0-9]*) + basic_machine=m68k-atari + os=-mint + ;; +esac + +# Decode aliases for certain CPU-COMPANY combinations. +case $basic_machine in + # Recognize the basic CPU types without company name. + # Some are omitted here because they have special meanings below. + 1750a | 580 \ + | a29k \ + | alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \ + | alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \ + | am33_2.0 \ + | arc | arm | arm[bl]e | arme[lb] | armv[2345] | armv[345][lb] | avr \ + | c4x | clipper \ + | d10v | d30v | dlx | dsp16xx \ + | fr30 | frv \ + | h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \ + | i370 | i860 | i960 | ia64 \ + | ip2k | iq2000 \ + | m32r | m32rle | m68000 | m68k | m88k | mcore \ + | mips | mipsbe | mipseb | mipsel | mipsle \ + | mips16 \ + | mips64 | mips64el \ + | mips64vr | mips64vrel \ + | mips64orion | mips64orionel \ + | mips64vr4100 | mips64vr4100el \ + | mips64vr4300 | mips64vr4300el \ + | mips64vr5000 | mips64vr5000el \ + | mipsisa32 | mipsisa32el \ + | mipsisa32r2 | mipsisa32r2el \ + | mipsisa64 | mipsisa64el \ + | mipsisa64r2 | mipsisa64r2el \ + | mipsisa64sb1 | mipsisa64sb1el \ + | mipsisa64sr71k | mipsisa64sr71kel \ + | mipstx39 | mipstx39el \ + | mn10200 | mn10300 \ + | msp430 \ + | ns16k | ns32k \ + | openrisc | or32 \ + | pdp10 | pdp11 | pj | pjl \ + | powerpc | powerpc64 | powerpc64le | powerpcle | ppcbe \ + | pyramid \ + | sh | sh[1234] | sh[23]e | sh[34]eb | shbe | shle | sh[1234]le | sh3ele \ + | sh64 | sh64le \ + | sparc | sparc64 | sparc86x | sparclet | sparclite | sparcv8 | sparcv9 | sparcv9b \ + | strongarm \ + | tahoe | thumb | tic4x | tic80 | tron \ + | v850 | v850e \ + | we32k \ + | x86 | xscale | xstormy16 | xtensa \ + | z8k) + basic_machine=$basic_machine-unknown + ;; + m6811 | m68hc11 | m6812 | m68hc12) + # Motorola 68HC11/12. + basic_machine=$basic_machine-unknown + os=-none + ;; + m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65 | z8k) + ;; + + # We use `pc' rather than `unknown' + # because (1) that's what they normally are, and + # (2) the word "unknown" tends to confuse beginning users. + i*86 | x86_64) + basic_machine=$basic_machine-pc + ;; + # Object if more than one company name word. + *-*-*) + echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2 + exit 1 + ;; + # Recognize the basic CPU types with company name. + 580-* \ + | a29k-* \ + | alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \ + | alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \ + | alphapca5[67]-* | alpha64pca5[67]-* | arc-* \ + | arm-* | armbe-* | armle-* | armeb-* | armv*-* \ + | avr-* \ + | bs2000-* \ + | c[123]* | c30-* | [cjt]90-* | c4x-* | c54x-* | c55x-* | c6x-* \ + | clipper-* | craynv-* | cydra-* \ + | d10v-* | d30v-* | dlx-* \ + | elxsi-* \ + | f30[01]-* | f700-* | fr30-* | frv-* | fx80-* \ + | h8300-* | h8500-* \ + | hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \ + | i*86-* | i860-* | i960-* | ia64-* \ + | ip2k-* | iq2000-* \ + | m32r-* | m32rle-* \ + | m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \ + | m88110-* | m88k-* | mcore-* \ + | mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \ + | mips16-* \ + | mips64-* | mips64el-* \ + | mips64vr-* | mips64vrel-* \ + | mips64orion-* | mips64orionel-* \ + | mips64vr4100-* | mips64vr4100el-* \ + | mips64vr4300-* | mips64vr4300el-* \ + | mips64vr5000-* | mips64vr5000el-* \ + | mipsisa32-* | mipsisa32el-* \ + | mipsisa32r2-* | mipsisa32r2el-* \ + | mipsisa64-* | mipsisa64el-* \ + | mipsisa64r2-* | mipsisa64r2el-* \ + | mipsisa64sb1-* | mipsisa64sb1el-* \ + | mipsisa64sr71k-* | mipsisa64sr71kel-* \ + | mipstx39-* | mipstx39el-* \ + | mmix-* \ + | msp430-* \ + | none-* | np1-* | ns16k-* | ns32k-* \ + | orion-* \ + | pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \ + | powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* | ppcbe-* \ + | pyramid-* \ + | romp-* | rs6000-* \ + | sh-* | sh[1234]-* | sh[23]e-* | sh[34]eb-* | shbe-* \ + | shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \ + | sparc-* | sparc64-* | sparc86x-* | sparclet-* | sparclite-* \ + | sparcv8-* | sparcv9-* | sparcv9b-* | strongarm-* | sv1-* | sx?-* \ + | tahoe-* | thumb-* \ + | tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \ + | tron-* \ + | v850-* | v850e-* | vax-* \ + | we32k-* \ + | x86-* | x86_64-* | xps100-* | xscale-* | xstormy16-* \ + | xtensa-* \ + | ymp-* \ + | z8k-*) + ;; + # Recognize the various machine names and aliases which stand + # for a CPU type and a company and sometimes even an OS. + 386bsd) + basic_machine=i386-unknown + os=-bsd + ;; + 3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc) + basic_machine=m68000-att + ;; + 3b*) + basic_machine=we32k-att + ;; + a29khif) + basic_machine=a29k-amd + os=-udi + ;; + abacus) + basic_machine=abacus-unknown + ;; + adobe68k) + basic_machine=m68010-adobe + os=-scout + ;; + alliant | fx80) + basic_machine=fx80-alliant + ;; + altos | altos3068) + basic_machine=m68k-altos + ;; + am29k) + basic_machine=a29k-none + os=-bsd + ;; + amd64) + basic_machine=x86_64-pc + ;; + amd64-*) + basic_machine=x86_64-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + amdahl) + basic_machine=580-amdahl + os=-sysv + ;; + amiga | amiga-*) + basic_machine=m68k-unknown + ;; + amigaos | amigados) + basic_machine=m68k-unknown + os=-amigaos + ;; + amigaunix | amix) + basic_machine=m68k-unknown + os=-sysv4 + ;; + apollo68) + basic_machine=m68k-apollo + os=-sysv + ;; + apollo68bsd) + basic_machine=m68k-apollo + os=-bsd + ;; + aux) + basic_machine=m68k-apple + os=-aux + ;; + balance) + basic_machine=ns32k-sequent + os=-dynix + ;; + c90) + basic_machine=c90-cray + os=-unicos + ;; + convex-c1) + basic_machine=c1-convex + os=-bsd + ;; + convex-c2) + basic_machine=c2-convex + os=-bsd + ;; + convex-c32) + basic_machine=c32-convex + os=-bsd + ;; + convex-c34) + basic_machine=c34-convex + os=-bsd + ;; + convex-c38) + basic_machine=c38-convex + os=-bsd + ;; + cray | j90) + basic_machine=j90-cray + os=-unicos + ;; + craynv) + basic_machine=craynv-cray + os=-unicosmp + ;; + cr16c) + basic_machine=cr16c-unknown + os=-elf + ;; + crds | unos) + basic_machine=m68k-crds + ;; + cris | cris-* | etrax*) + basic_machine=cris-axis + ;; + crx) + basic_machine=crx-unknown + os=-elf + ;; + da30 | da30-*) + basic_machine=m68k-da30 + ;; + decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn) + basic_machine=mips-dec + ;; + decsystem10* | dec10*) + basic_machine=pdp10-dec + os=-tops10 + ;; + decsystem20* | dec20*) + basic_machine=pdp10-dec + os=-tops20 + ;; + delta | 3300 | motorola-3300 | motorola-delta \ + | 3300-motorola | delta-motorola) + basic_machine=m68k-motorola + ;; + delta88) + basic_machine=m88k-motorola + os=-sysv3 + ;; + dpx20 | dpx20-*) + basic_machine=rs6000-bull + os=-bosx + ;; + dpx2* | dpx2*-bull) + basic_machine=m68k-bull + os=-sysv3 + ;; + ebmon29k) + basic_machine=a29k-amd + os=-ebmon + ;; + elxsi) + basic_machine=elxsi-elxsi + os=-bsd + ;; + encore | umax | mmax) + basic_machine=ns32k-encore + ;; + es1800 | OSE68k | ose68k | ose | OSE) + basic_machine=m68k-ericsson + os=-ose + ;; + fx2800) + basic_machine=i860-alliant + ;; + genix) + basic_machine=ns32k-ns + ;; + gmicro) + basic_machine=tron-gmicro + os=-sysv + ;; + go32) + basic_machine=i386-pc + os=-go32 + ;; + h3050r* | hiux*) + basic_machine=hppa1.1-hitachi + os=-hiuxwe2 + ;; + h8300hms) + basic_machine=h8300-hitachi + os=-hms + ;; + h8300xray) + basic_machine=h8300-hitachi + os=-xray + ;; + h8500hms) + basic_machine=h8500-hitachi + os=-hms + ;; + harris) + basic_machine=m88k-harris + os=-sysv3 + ;; + hp300-*) + basic_machine=m68k-hp + ;; + hp300bsd) + basic_machine=m68k-hp + os=-bsd + ;; + hp300hpux) + basic_machine=m68k-hp + os=-hpux + ;; + hp3k9[0-9][0-9] | hp9[0-9][0-9]) + basic_machine=hppa1.0-hp + ;; + hp9k2[0-9][0-9] | hp9k31[0-9]) + basic_machine=m68000-hp + ;; + hp9k3[2-9][0-9]) + basic_machine=m68k-hp + ;; + hp9k6[0-9][0-9] | hp6[0-9][0-9]) + basic_machine=hppa1.0-hp + ;; + hp9k7[0-79][0-9] | hp7[0-79][0-9]) + basic_machine=hppa1.1-hp + ;; + hp9k78[0-9] | hp78[0-9]) + # FIXME: really hppa2.0-hp + basic_machine=hppa1.1-hp + ;; + hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893) + # FIXME: really hppa2.0-hp + basic_machine=hppa1.1-hp + ;; + hp9k8[0-9][13679] | hp8[0-9][13679]) + basic_machine=hppa1.1-hp + ;; + hp9k8[0-9][0-9] | hp8[0-9][0-9]) + basic_machine=hppa1.0-hp + ;; + hppa-next) + os=-nextstep3 + ;; + hppaosf) + basic_machine=hppa1.1-hp + os=-osf + ;; + hppro) + basic_machine=hppa1.1-hp + os=-proelf + ;; + i370-ibm* | ibm*) + basic_machine=i370-ibm + ;; +# I'm not sure what "Sysv32" means. Should this be sysv3.2? + i*86v32) + basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` + os=-sysv32 + ;; + i*86v4*) + basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` + os=-sysv4 + ;; + i*86v) + basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` + os=-sysv + ;; + i*86sol2) + basic_machine=`echo $1 | sed -e 's/86.*/86-pc/'` + os=-solaris2 + ;; + i386mach) + basic_machine=i386-mach + os=-mach + ;; + i386-vsta | vsta) + basic_machine=i386-unknown + os=-vsta + ;; + iris | iris4d) + basic_machine=mips-sgi + case $os in + -irix*) + ;; + *) + os=-irix4 + ;; + esac + ;; + isi68 | isi) + basic_machine=m68k-isi + os=-sysv + ;; + m88k-omron*) + basic_machine=m88k-omron + ;; + magnum | m3230) + basic_machine=mips-mips + os=-sysv + ;; + merlin) + basic_machine=ns32k-utek + os=-sysv + ;; + mingw32) + basic_machine=i386-pc + os=-mingw32 + ;; + miniframe) + basic_machine=m68000-convergent + ;; + *mint | -mint[0-9]* | *MiNT | *MiNT[0-9]*) + basic_machine=m68k-atari + os=-mint + ;; + mips3*-*) + basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'` + ;; + mips3*) + basic_machine=`echo $basic_machine | sed -e 's/mips3/mips64/'`-unknown + ;; + monitor) + basic_machine=m68k-rom68k + os=-coff + ;; + morphos) + basic_machine=powerpc-unknown + os=-morphos + ;; + msdos) + basic_machine=i386-pc + os=-msdos + ;; + mvs) + basic_machine=i370-ibm + os=-mvs + ;; + ncr3000) + basic_machine=i486-ncr + os=-sysv4 + ;; + netbsd386) + basic_machine=i386-unknown + os=-netbsd + ;; + netwinder) + basic_machine=armv4l-rebel + os=-linux + ;; + news | news700 | news800 | news900) + basic_machine=m68k-sony + os=-newsos + ;; + news1000) + basic_machine=m68030-sony + os=-newsos + ;; + news-3600 | risc-news) + basic_machine=mips-sony + os=-newsos + ;; + necv70) + basic_machine=v70-nec + os=-sysv + ;; + next | m*-next ) + basic_machine=m68k-next + case $os in + -nextstep* ) + ;; + -ns2*) + os=-nextstep2 + ;; + *) + os=-nextstep3 + ;; + esac + ;; + nh3000) + basic_machine=m68k-harris + os=-cxux + ;; + nh[45]000) + basic_machine=m88k-harris + os=-cxux + ;; + nindy960) + basic_machine=i960-intel + os=-nindy + ;; + mon960) + basic_machine=i960-intel + os=-mon960 + ;; + nonstopux) + basic_machine=mips-compaq + os=-nonstopux + ;; + np1) + basic_machine=np1-gould + ;; + nsr-tandem) + basic_machine=nsr-tandem + ;; + op50n-* | op60c-*) + basic_machine=hppa1.1-oki + os=-proelf + ;; + or32 | or32-*) + basic_machine=or32-unknown + os=-coff + ;; + os400) + basic_machine=powerpc-ibm + os=-os400 + ;; + OSE68000 | ose68000) + basic_machine=m68000-ericsson + os=-ose + ;; + os68k) + basic_machine=m68k-none + os=-os68k + ;; + pa-hitachi) + basic_machine=hppa1.1-hitachi + os=-hiuxwe2 + ;; + paragon) + basic_machine=i860-intel + os=-osf + ;; + pbd) + basic_machine=sparc-tti + ;; + pbb) + basic_machine=m68k-tti + ;; + pc532 | pc532-*) + basic_machine=ns32k-pc532 + ;; + pentium | p5 | k5 | k6 | nexgen | viac3) + basic_machine=i586-pc + ;; + pentiumpro | p6 | 6x86 | athlon | athlon_*) + basic_machine=i686-pc + ;; + pentiumii | pentium2 | pentiumiii | pentium3) + basic_machine=i686-pc + ;; + pentium4) + basic_machine=i786-pc + ;; + pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*) + basic_machine=i586-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + pentiumpro-* | p6-* | 6x86-* | athlon-*) + basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*) + basic_machine=i686-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + pentium4-*) + basic_machine=i786-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + pn) + basic_machine=pn-gould + ;; + power) basic_machine=power-ibm + ;; + ppc) basic_machine=powerpc-unknown + ;; + ppc-*) basic_machine=powerpc-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + ppcle | powerpclittle | ppc-le | powerpc-little) + basic_machine=powerpcle-unknown + ;; + ppcle-* | powerpclittle-*) + basic_machine=powerpcle-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + ppc64) basic_machine=powerpc64-unknown + ;; + ppc64-*) basic_machine=powerpc64-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + ppc64le | powerpc64little | ppc64-le | powerpc64-little) + basic_machine=powerpc64le-unknown + ;; + ppc64le-* | powerpc64little-*) + basic_machine=powerpc64le-`echo $basic_machine | sed 's/^[^-]*-//'` + ;; + ps2) + basic_machine=i386-ibm + ;; + pw32) + basic_machine=i586-unknown + os=-pw32 + ;; + rom68k) + basic_machine=m68k-rom68k + os=-coff + ;; + rm[46]00) + basic_machine=mips-siemens + ;; + rtpc | rtpc-*) + basic_machine=romp-ibm + ;; + s390 | s390-*) + basic_machine=s390-ibm + ;; + s390x | s390x-*) + basic_machine=s390x-ibm + ;; + sa29200) + basic_machine=a29k-amd + os=-udi + ;; + sb1) + basic_machine=mipsisa64sb1-unknown + ;; + sb1el) + basic_machine=mipsisa64sb1el-unknown + ;; + sei) + basic_machine=mips-sei + os=-seiux + ;; + sequent) + basic_machine=i386-sequent + ;; + sh) + basic_machine=sh-hitachi + os=-hms + ;; + sh64) + basic_machine=sh64-unknown + ;; + sparclite-wrs | simso-wrs) + basic_machine=sparclite-wrs + os=-vxworks + ;; + sps7) + basic_machine=m68k-bull + os=-sysv2 + ;; + spur) + basic_machine=spur-unknown + ;; + st2000) + basic_machine=m68k-tandem + ;; + stratus) + basic_machine=i860-stratus + os=-sysv4 + ;; + sun2) + basic_machine=m68000-sun + ;; + sun2os3) + basic_machine=m68000-sun + os=-sunos3 + ;; + sun2os4) + basic_machine=m68000-sun + os=-sunos4 + ;; + sun3os3) + basic_machine=m68k-sun + os=-sunos3 + ;; + sun3os4) + basic_machine=m68k-sun + os=-sunos4 + ;; + sun4os3) + basic_machine=sparc-sun + os=-sunos3 + ;; + sun4os4) + basic_machine=sparc-sun + os=-sunos4 + ;; + sun4sol2) + basic_machine=sparc-sun + os=-solaris2 + ;; + sun3 | sun3-*) + basic_machine=m68k-sun + ;; + sun4) + basic_machine=sparc-sun + ;; + sun386 | sun386i | roadrunner) + basic_machine=i386-sun + ;; + sv1) + basic_machine=sv1-cray + os=-unicos + ;; + symmetry) + basic_machine=i386-sequent + os=-dynix + ;; + t3e) + basic_machine=alphaev5-cray + os=-unicos + ;; + t90) + basic_machine=t90-cray + os=-unicos + ;; + tic54x | c54x*) + basic_machine=tic54x-unknown + os=-coff + ;; + tic55x | c55x*) + basic_machine=tic55x-unknown + os=-coff + ;; + tic6x | c6x*) + basic_machine=tic6x-unknown + os=-coff + ;; + tx39) + basic_machine=mipstx39-unknown + ;; + tx39el) + basic_machine=mipstx39el-unknown + ;; + toad1) + basic_machine=pdp10-xkl + os=-tops20 + ;; + tower | tower-32) + basic_machine=m68k-ncr + ;; + tpf) + basic_machine=s390x-ibm + os=-tpf + ;; + udi29k) + basic_machine=a29k-amd + os=-udi + ;; + ultra3) + basic_machine=a29k-nyu + os=-sym1 + ;; + v810 | necv810) + basic_machine=v810-nec + os=-none + ;; + vaxv) + basic_machine=vax-dec + os=-sysv + ;; + vms) + basic_machine=vax-dec + os=-vms + ;; + vpp*|vx|vx-*) + basic_machine=f301-fujitsu + ;; + vxworks960) + basic_machine=i960-wrs + os=-vxworks + ;; + vxworks68) + basic_machine=m68k-wrs + os=-vxworks + ;; + vxworks29k) + basic_machine=a29k-wrs + os=-vxworks + ;; + w65*) + basic_machine=w65-wdc + os=-none + ;; + w89k-*) + basic_machine=hppa1.1-winbond + os=-proelf + ;; + xps | xps100) + basic_machine=xps100-honeywell + ;; + ymp) + basic_machine=ymp-cray + os=-unicos + ;; + z8k-*-coff) + basic_machine=z8k-unknown + os=-sim + ;; + none) + basic_machine=none-none + os=-none + ;; + +# Here we handle the default manufacturer of certain CPU types. It is in +# some cases the only manufacturer, in others, it is the most popular. + w89k) + basic_machine=hppa1.1-winbond + ;; + op50n) + basic_machine=hppa1.1-oki + ;; + op60c) + basic_machine=hppa1.1-oki + ;; + romp) + basic_machine=romp-ibm + ;; + mmix) + basic_machine=mmix-knuth + ;; + rs6000) + basic_machine=rs6000-ibm + ;; + vax) + basic_machine=vax-dec + ;; + pdp10) + # there are many clones, so DEC is not a safe bet + basic_machine=pdp10-unknown + ;; + pdp11) + basic_machine=pdp11-dec + ;; + we32k) + basic_machine=we32k-att + ;; + sh3 | sh4 | sh[34]eb | sh[1234]le | sh[23]ele) + basic_machine=sh-unknown + ;; + sh64) + basic_machine=sh64-unknown + ;; + sparc | sparcv8 | sparcv9 | sparcv9b) + basic_machine=sparc-sun + ;; + cydra) + basic_machine=cydra-cydrome + ;; + orion) + basic_machine=orion-highlevel + ;; + orion105) + basic_machine=clipper-highlevel + ;; + mac | mpw | mac-mpw) + basic_machine=m68k-apple + ;; + pmac | pmac-mpw) + basic_machine=powerpc-apple + ;; + *-unknown) + # Make sure to match an already-canonicalized machine name. + ;; + *) + echo Invalid configuration \`$1\': machine \`$basic_machine\' not recognized 1>&2 + exit 1 + ;; +esac + +# Here we canonicalize certain aliases for manufacturers. +case $basic_machine in + *-digital*) + basic_machine=`echo $basic_machine | sed 's/digital.*/dec/'` + ;; + *-commodore*) + basic_machine=`echo $basic_machine | sed 's/commodore.*/cbm/'` + ;; + *) + ;; +esac + +# Decode manufacturer-specific aliases for certain operating systems. + +if [ x"$os" != x"" ] +then +case $os in + # First match some system type aliases + # that might get confused with valid system types. + # -solaris* is a basic system type, with this one exception. + -solaris1 | -solaris1.*) + os=`echo $os | sed -e 's|solaris1|sunos4|'` + ;; + -solaris) + os=-solaris2 + ;; + -svr4*) + os=-sysv4 + ;; + -unixware*) + os=-sysv4.2uw + ;; + -gnu/linux*) + os=`echo $os | sed -e 's|gnu/linux|linux-gnu|'` + ;; + # First accept the basic system types. + # The portable systems comes first. + # Each alternative MUST END IN A *, to match a version number. + # -sysv* is not here because it comes later, after sysvr4. + -gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \ + | -*vms* | -sco* | -esix* | -isc* | -aix* | -sunos | -sunos[34]*\ + | -hpux* | -unos* | -osf* | -luna* | -dgux* | -solaris* | -sym* \ + | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \ + | -aos* \ + | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \ + | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \ + | -hiux* | -386bsd* | -knetbsd* | -mirbsd* | -netbsd* | -openbsd* \ + | -ekkobsd* | -kfreebsd* | -freebsd* | -riscix* | -lynxos* \ + | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \ + | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \ + | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \ + | -chorusos* | -chorusrdb* \ + | -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* \ + | -mingw32* | -linux-gnu* | -linux-uclibc* | -uxpv* | -beos* | -mpeix* | -udk* \ + | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \ + | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \ + | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \ + | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \ + | -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \ + | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly*) + # Remember, each alternative MUST END IN *, to match a version number. + ;; + -qnx*) + case $basic_machine in + x86-* | i*86-*) + ;; + *) + os=-nto$os + ;; + esac + ;; + -nto-qnx*) + ;; + -nto*) + os=`echo $os | sed -e 's|nto|nto-qnx|'` + ;; + -sim | -es1800* | -hms* | -xray | -os68k* | -none* | -v88r* \ + | -windows* | -osx | -abug | -netware* | -os9* | -beos* \ + | -macos* | -mpw* | -magic* | -mmixware* | -mon960* | -lnews*) + ;; + -mac*) + os=`echo $os | sed -e 's|mac|macos|'` + ;; + -linux-dietlibc) + os=-linux-dietlibc + ;; + -linux*) + os=`echo $os | sed -e 's|linux|linux-gnu|'` + ;; + -sunos5*) + os=`echo $os | sed -e 's|sunos5|solaris2|'` + ;; + -sunos6*) + os=`echo $os | sed -e 's|sunos6|solaris3|'` + ;; + -opened*) + os=-openedition + ;; + -os400*) + os=-os400 + ;; + -wince*) + os=-wince + ;; + -osfrose*) + os=-osfrose + ;; + -osf*) + os=-osf + ;; + -utek*) + os=-bsd + ;; + -dynix*) + os=-bsd + ;; + -acis*) + os=-aos + ;; + -atheos*) + os=-atheos + ;; + -syllable*) + os=-syllable + ;; + -386bsd) + os=-bsd + ;; + -ctix* | -uts*) + os=-sysv + ;; + -nova*) + os=-rtmk-nova + ;; + -ns2 ) + os=-nextstep2 + ;; + -nsk*) + os=-nsk + ;; + # Preserve the version number of sinix5. + -sinix5.*) + os=`echo $os | sed -e 's|sinix|sysv|'` + ;; + -sinix*) + os=-sysv4 + ;; + -tpf*) + os=-tpf + ;; + -triton*) + os=-sysv3 + ;; + -oss*) + os=-sysv3 + ;; + -svr4) + os=-sysv4 + ;; + -svr3) + os=-sysv3 + ;; + -sysvr4) + os=-sysv4 + ;; + # This must come after -sysvr4. + -sysv*) + ;; + -ose*) + os=-ose + ;; + -es1800*) + os=-ose + ;; + -xenix) + os=-xenix + ;; + -*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*) + os=-mint + ;; + -aros*) + os=-aros + ;; + -kaos*) + os=-kaos + ;; + -none) + ;; + *) + # Get rid of the `-' at the beginning of $os. + os=`echo $os | sed 's/[^-]*-//'` + echo Invalid configuration \`$1\': system \`$os\' not recognized 1>&2 + exit 1 + ;; +esac +else + +# Here we handle the default operating systems that come with various machines. +# The value should be what the vendor currently ships out the door with their +# machine or put another way, the most popular os provided with the machine. + +# Note that if you're going to try to match "-MANUFACTURER" here (say, +# "-sun"), then you have to tell the case statement up towards the top +# that MANUFACTURER isn't an operating system. Otherwise, code above +# will signal an error saying that MANUFACTURER isn't an operating +# system, and we'll never get to this point. + +case $basic_machine in + *-acorn) + os=-riscix1.2 + ;; + arm*-rebel) + os=-linux + ;; + arm*-semi) + os=-aout + ;; + c4x-* | tic4x-*) + os=-coff + ;; + # This must come before the *-dec entry. + pdp10-*) + os=-tops20 + ;; + pdp11-*) + os=-none + ;; + *-dec | vax-*) + os=-ultrix4.2 + ;; + m68*-apollo) + os=-domain + ;; + i386-sun) + os=-sunos4.0.2 + ;; + m68000-sun) + os=-sunos3 + # This also exists in the configure program, but was not the + # default. + # os=-sunos4 + ;; + m68*-cisco) + os=-aout + ;; + mips*-cisco) + os=-elf + ;; + mips*-*) + os=-elf + ;; + or32-*) + os=-coff + ;; + *-tti) # must be before sparc entry or we get the wrong os. + os=-sysv3 + ;; + sparc-* | *-sun) + os=-sunos4.1.1 + ;; + *-be) + os=-beos + ;; + *-ibm) + os=-aix + ;; + *-knuth) + os=-mmixware + ;; + *-wec) + os=-proelf + ;; + *-winbond) + os=-proelf + ;; + *-oki) + os=-proelf + ;; + *-hp) + os=-hpux + ;; + *-hitachi) + os=-hiux + ;; + i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent) + os=-sysv + ;; + *-cbm) + os=-amigaos + ;; + *-dg) + os=-dgux + ;; + *-dolphin) + os=-sysv3 + ;; + m68k-ccur) + os=-rtu + ;; + m88k-omron*) + os=-luna + ;; + *-next ) + os=-nextstep + ;; + *-sequent) + os=-ptx + ;; + *-crds) + os=-unos + ;; + *-ns) + os=-genix + ;; + i370-*) + os=-mvs + ;; + *-next) + os=-nextstep3 + ;; + *-gould) + os=-sysv + ;; + *-highlevel) + os=-bsd + ;; + *-encore) + os=-bsd + ;; + *-sgi) + os=-irix + ;; + *-siemens) + os=-sysv4 + ;; + *-masscomp) + os=-rtu + ;; + f30[01]-fujitsu | f700-fujitsu) + os=-uxpv + ;; + *-rom68k) + os=-coff + ;; + *-*bug) + os=-coff + ;; + *-apple) + os=-macos + ;; + *-atari*) + os=-mint + ;; + *) + os=-none + ;; +esac +fi + +# Here we handle the case where we know the os, and the CPU type, but not the +# manufacturer. We pick the logical manufacturer. +vendor=unknown +case $basic_machine in + *-unknown) + case $os in + -riscix*) + vendor=acorn + ;; + -sunos*) + vendor=sun + ;; + -aix*) + vendor=ibm + ;; + -beos*) + vendor=be + ;; + -hpux*) + vendor=hp + ;; + -mpeix*) + vendor=hp + ;; + -hiux*) + vendor=hitachi + ;; + -unos*) + vendor=crds + ;; + -dgux*) + vendor=dg + ;; + -luna*) + vendor=omron + ;; + -genix*) + vendor=ns + ;; + -mvs* | -opened*) + vendor=ibm + ;; + -os400*) + vendor=ibm + ;; + -ptx*) + vendor=sequent + ;; + -tpf*) + vendor=ibm + ;; + -vxsim* | -vxworks* | -windiss*) + vendor=wrs + ;; + -aux*) + vendor=apple + ;; + -hms*) + vendor=hitachi + ;; + -mpw* | -macos*) + vendor=apple + ;; + -*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*) + vendor=atari + ;; + -vos*) + vendor=stratus + ;; + esac + basic_machine=`echo $basic_machine | sed "s/unknown/$vendor/"` + ;; +esac + +echo $basic_machine$os +exit 0 + +# Local variables: +# eval: (add-hook 'write-file-hooks 'time-stamp) +# time-stamp-start: "timestamp='" +# time-stamp-format: "%:y-%02m-%02d" +# time-stamp-end: "'" +# End: diff --git a/config/install-sh b/config/install-sh new file mode 100755 index 00000000..e9de2384 --- /dev/null +++ b/config/install-sh @@ -0,0 +1,251 @@ +#!/bin/sh +# +# install - install a program, script, or datafile +# This comes from X11R5 (mit/util/scripts/install.sh). +# +# Copyright 1991 by the Massachusetts Institute of Technology +# +# Permission to use, copy, modify, distribute, and sell this software and its +# documentation for any purpose is hereby granted without fee, provided that +# the above copyright notice appear in all copies and that both that +# copyright notice and this permission notice appear in supporting +# documentation, and that the name of M.I.T. not be used in advertising or +# publicity pertaining to distribution of the software without specific, +# written prior permission. M.I.T. makes no representations about the +# suitability of this software for any purpose. It is provided "as is" +# without express or implied warranty. +# +# Calling this script install-sh is preferred over install.sh, to prevent +# `make' implicit rules from creating a file called install from it +# when there is no Makefile. +# +# This script is compatible with the BSD install script, but was written +# from scratch. It can only install one file at a time, a restriction +# shared with many OS's install programs. + + +# set DOITPROG to echo to test this script + +# Don't use :- since 4.3BSD and earlier shells don't like it. +doit="${DOITPROG-}" + + +# put in absolute paths if you don't have them in your path; or use env. vars. + +mvprog="${MVPROG-mv}" +cpprog="${CPPROG-cp}" +chmodprog="${CHMODPROG-chmod}" +chownprog="${CHOWNPROG-chown}" +chgrpprog="${CHGRPPROG-chgrp}" +stripprog="${STRIPPROG-strip}" +rmprog="${RMPROG-rm}" +mkdirprog="${MKDIRPROG-mkdir}" + +transformbasename="" +transform_arg="" +instcmd="$mvprog" +chmodcmd="$chmodprog 0755" +chowncmd="" +chgrpcmd="" +stripcmd="" +rmcmd="$rmprog -f" +mvcmd="$mvprog" +src="" +dst="" +dir_arg="" + +while [ x"$1" != x ]; do + case $1 in + -c) instcmd="$cpprog" + shift + continue;; + + -d) dir_arg=true + shift + continue;; + + -m) chmodcmd="$chmodprog $2" + shift + shift + continue;; + + -o) chowncmd="$chownprog $2" + shift + shift + continue;; + + -g) chgrpcmd="$chgrpprog $2" + shift + shift + continue;; + + -s) stripcmd="$stripprog" + shift + continue;; + + -t=*) transformarg=`echo $1 | sed 's/-t=//'` + shift + continue;; + + -b=*) transformbasename=`echo $1 | sed 's/-b=//'` + shift + continue;; + + *) if [ x"$src" = x ] + then + src=$1 + else + # this colon is to work around a 386BSD /bin/sh bug + : + dst=$1 + fi + shift + continue;; + esac +done + +if [ x"$src" = x ] +then + echo "install: no input file specified" + exit 1 +else + true +fi + +if [ x"$dir_arg" != x ]; then + dst=$src + src="" + + if [ -d $dst ]; then + instcmd=: + chmodcmd="" + else + instcmd=mkdir + fi +else + +# Waiting for this to be detected by the "$instcmd $src $dsttmp" command +# might cause directories to be created, which would be especially bad +# if $src (and thus $dsttmp) contains '*'. + + if [ -f $src -o -d $src ] + then + true + else + echo "install: $src does not exist" + exit 1 + fi + + if [ x"$dst" = x ] + then + echo "install: no destination specified" + exit 1 + else + true + fi + +# If destination is a directory, append the input filename; if your system +# does not like double slashes in filenames, you may need to add some logic + + if [ -d $dst ] + then + dst="$dst"/`basename $src` + else + true + fi +fi + +## this sed command emulates the dirname command +dstdir=`echo $dst | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'` + +# Make sure that the destination directory exists. +# this part is taken from Noah Friedman's mkinstalldirs script + +# Skip lots of stat calls in the usual case. +if [ ! -d "$dstdir" ]; then +defaultIFS=' +' +IFS="${IFS-${defaultIFS}}" + +oIFS="${IFS}" +# Some sh's can't handle IFS=/ for some reason. +IFS='%' +set - `echo ${dstdir} | sed -e 's@/@%@g' -e 's@^%@/@'` +IFS="${oIFS}" + +pathcomp='' + +while [ $# -ne 0 ] ; do + pathcomp="${pathcomp}${1}" + shift + + if [ ! -d "${pathcomp}" ] ; + then + $mkdirprog "${pathcomp}" + else + true + fi + + pathcomp="${pathcomp}/" +done +fi + +if [ x"$dir_arg" != x ] +then + $doit $instcmd $dst && + + if [ x"$chowncmd" != x ]; then $doit $chowncmd $dst; else true ; fi && + if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dst; else true ; fi && + if [ x"$stripcmd" != x ]; then $doit $stripcmd $dst; else true ; fi && + if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dst; else true ; fi +else + +# If we're going to rename the final executable, determine the name now. + + if [ x"$transformarg" = x ] + then + dstfile=`basename $dst` + else + dstfile=`basename $dst $transformbasename | + sed $transformarg`$transformbasename + fi + +# don't allow the sed command to completely eliminate the filename + + if [ x"$dstfile" = x ] + then + dstfile=`basename $dst` + else + true + fi + +# Make a temp file name in the proper directory. + + dsttmp=$dstdir/#inst.$$# + +# Move or copy the file name to the temp name + + $doit $instcmd $src $dsttmp && + + trap "rm -f ${dsttmp}" 0 && + +# and set any options; do chmod last to preserve setuid bits + +# If any of these fail, we abort the whole thing. If we want to +# ignore errors from any of these, just make sure not to ignore +# errors from the above "$doit $instcmd $src $dsttmp" command. + + if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; else true;fi && + if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; else true;fi && + if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; else true;fi && + if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; else true;fi && + +# Now rename the file to the real destination. + + $doit $rmcmd -f $dstdir/$dstfile && + $doit $mvcmd $dsttmp $dstdir/$dstfile + +fi && + + +exit 0 diff --git a/configure b/configure new file mode 100755 index 00000000..d4267f1c --- /dev/null +++ b/configure @@ -0,0 +1,4840 @@ +#! /bin/sh +# Guess values for system-dependent variables and create Makefiles. +# Generated by GNU Autoconf 2.59. +# +# Copyright (C) 2003 Free Software Foundation, Inc. +# This configure script is free software; the Free Software Foundation +# gives unlimited permission to copy, distribute and modify it. +## --------------------- ## +## M4sh Initialization. ## +## --------------------- ## + +# Be Bourne compatible +if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then + emulate sh + NULLCMD=: + # Zsh 3.x and 4.x performs word splitting on ${1+"$@"}, which + # is contrary to our usage. Disable this feature. + alias -g '${1+"$@"}'='"$@"' +elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then + set -o posix +fi +DUALCASE=1; export DUALCASE # for MKS sh + +# Support unset when possible. +if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then + as_unset=unset +else + as_unset=false +fi + + +# Work around bugs in pre-3.0 UWIN ksh. +$as_unset ENV MAIL MAILPATH +PS1='$ ' +PS2='> ' +PS4='+ ' + +# NLS nuisances. +for as_var in \ + LANG LANGUAGE LC_ADDRESS LC_ALL LC_COLLATE LC_CTYPE LC_IDENTIFICATION \ + LC_MEASUREMENT LC_MESSAGES LC_MONETARY LC_NAME LC_NUMERIC LC_PAPER \ + LC_TELEPHONE LC_TIME +do + if (set +x; test -z "`(eval $as_var=C; export $as_var) 2>&1`"); then + eval $as_var=C; export $as_var + else + $as_unset $as_var + fi +done + +# Required to use basename. +if expr a : '\(a\)' >/dev/null 2>&1; then + as_expr=expr +else + as_expr=false +fi + +if (basename /) >/dev/null 2>&1 && test "X`basename / 2>&1`" = "X/"; then + as_basename=basename +else + as_basename=false +fi + + +# Name of the executable. +as_me=`$as_basename "$0" || +$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \ + X"$0" : 'X\(//\)$' \| \ + X"$0" : 'X\(/\)$' \| \ + . : '\(.\)' 2>/dev/null || +echo X/"$0" | + sed '/^.*\/\([^/][^/]*\)\/*$/{ s//\1/; q; } + /^X\/\(\/\/\)$/{ s//\1/; q; } + /^X\/\(\/\).*/{ s//\1/; q; } + s/.*/./; q'` + + +# PATH needs CR, and LINENO needs CR and PATH. +# Avoid depending upon Character Ranges. +as_cr_letters='abcdefghijklmnopqrstuvwxyz' +as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ' +as_cr_Letters=$as_cr_letters$as_cr_LETTERS +as_cr_digits='0123456789' +as_cr_alnum=$as_cr_Letters$as_cr_digits + +# The user is always right. +if test "${PATH_SEPARATOR+set}" != set; then + echo "#! /bin/sh" >conf$$.sh + echo "exit 0" >>conf$$.sh + chmod +x conf$$.sh + if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then + PATH_SEPARATOR=';' + else + PATH_SEPARATOR=: + fi + rm -f conf$$.sh +fi + + + as_lineno_1=$LINENO + as_lineno_2=$LINENO + as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null` + test "x$as_lineno_1" != "x$as_lineno_2" && + test "x$as_lineno_3" = "x$as_lineno_2" || { + # Find who we are. 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Invocation command line was + + $ $0 $@ + +_ACEOF +{ +cat <<_ASUNAME +## --------- ## +## Platform. ## +## --------- ## + +hostname = `(hostname || uname -n) 2>/dev/null | sed 1q` +uname -m = `(uname -m) 2>/dev/null || echo unknown` +uname -r = `(uname -r) 2>/dev/null || echo unknown` +uname -s = `(uname -s) 2>/dev/null || echo unknown` +uname -v = `(uname -v) 2>/dev/null || echo unknown` + +/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown` +/bin/uname -X = `(/bin/uname -X) 2>/dev/null || echo unknown` + +/bin/arch = `(/bin/arch) 2>/dev/null || echo unknown` +/usr/bin/arch -k = `(/usr/bin/arch -k) 2>/dev/null || echo unknown` +/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown` +hostinfo = `(hostinfo) 2>/dev/null || echo unknown` +/bin/machine = `(/bin/machine) 2>/dev/null || echo unknown` +/usr/bin/oslevel = `(/usr/bin/oslevel) 2>/dev/null || echo unknown` +/bin/universe = `(/bin/universe) 2>/dev/null || echo unknown` + +_ASUNAME + +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + echo "PATH: $as_dir" +done + +} >&5 + +cat >&5 <<_ACEOF + + +## ----------- ## +## Core tests. ## +## ----------- ## + +_ACEOF + + +# Keep a trace of the command line. +# Strip out --no-create and --no-recursion so they do not pile up. +# Strip out --silent because we don't want to record it for future runs. +# Also quote any args containing shell meta-characters. +# Make two passes to allow for proper duplicate-argument suppression. +ac_configure_args= +ac_configure_args0= +ac_configure_args1= +ac_sep= +ac_must_keep_next=false +for ac_pass in 1 2 +do + for ac_arg + do + case $ac_arg in + -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;; + -q | -quiet | --quiet | --quie | --qui | --qu | --q \ + | -silent | --silent | --silen | --sile | --sil) + continue ;; + *" "*|*" "*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\"\']*) + ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;; + esac + case $ac_pass in + 1) ac_configure_args0="$ac_configure_args0 '$ac_arg'" ;; + 2) + ac_configure_args1="$ac_configure_args1 '$ac_arg'" + if test $ac_must_keep_next = true; then + ac_must_keep_next=false # Got value, back to normal. + else + case $ac_arg in + *=* | --config-cache | -C | -disable-* | --disable-* \ + | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \ + | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \ + | -with-* | --with-* | -without-* | --without-* | --x) + case "$ac_configure_args0 " in + "$ac_configure_args1"*" '$ac_arg' "* ) continue ;; + esac + ;; + -* ) ac_must_keep_next=true ;; + esac + fi + ac_configure_args="$ac_configure_args$ac_sep'$ac_arg'" + # Get rid of the leading space. + ac_sep=" " + ;; + esac + done +done +$as_unset ac_configure_args0 || test "${ac_configure_args0+set}" != set || { ac_configure_args0=; export ac_configure_args0; } +$as_unset ac_configure_args1 || test "${ac_configure_args1+set}" != set || { ac_configure_args1=; export ac_configure_args1; } + +# When interrupted or exit'd, cleanup temporary files, and complete +# config.log. We remove comments because anyway the quotes in there +# would cause problems or look ugly. +# WARNING: Be sure not to use single quotes in there, as some shells, +# such as our DU 5.0 friend, will then `close' the trap. +trap 'exit_status=$? + # Save into config.log some information that might help in debugging. + { + echo + + cat <<\_ASBOX +## ---------------- ## +## Cache variables. ## +## ---------------- ## +_ASBOX + echo + # The following way of writing the cache mishandles newlines in values, +{ + (set) 2>&1 | + case `(ac_space='"'"' '"'"'; set | grep ac_space) 2>&1` in + *ac_space=\ *) + sed -n \ + "s/'"'"'/'"'"'\\\\'"'"''"'"'/g; + s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='"'"'\\2'"'"'/p" + ;; + *) + sed -n \ + "s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1=\\2/p" + ;; + esac; +} + echo + + cat <<\_ASBOX +## ----------------- ## +## Output variables. ## +## ----------------- ## +_ASBOX + echo + for ac_var in $ac_subst_vars + do + eval ac_val=$`echo $ac_var` + echo "$ac_var='"'"'$ac_val'"'"'" + done | sort + echo + + if test -n "$ac_subst_files"; then + cat <<\_ASBOX +## ------------- ## +## Output files. ## +## ------------- ## +_ASBOX + echo + for ac_var in $ac_subst_files + do + eval ac_val=$`echo $ac_var` + echo "$ac_var='"'"'$ac_val'"'"'" + done | sort + echo + fi + + if test -s confdefs.h; then + cat <<\_ASBOX +## ----------- ## +## confdefs.h. ## +## ----------- ## +_ASBOX + echo + sed "/^$/d" confdefs.h | sort + echo + fi + test "$ac_signal" != 0 && + echo "$as_me: caught signal $ac_signal" + echo "$as_me: exit $exit_status" + } >&5 + rm -f core *.core && + rm -rf conftest* confdefs* conf$$* $ac_clean_files && + exit $exit_status + ' 0 +for ac_signal in 1 2 13 15; do + trap 'ac_signal='$ac_signal'; { (exit 1); exit 1; }' $ac_signal +done +ac_signal=0 + +# confdefs.h avoids OS command line length limits that DEFS can exceed. +rm -rf conftest* confdefs.h +# AIX cpp loses on an empty file, so make sure it contains at least a newline. +echo >confdefs.h + +# Predefined preprocessor variables. + +cat >>confdefs.h <<_ACEOF +#define PACKAGE_NAME "$PACKAGE_NAME" +_ACEOF + + +cat >>confdefs.h <<_ACEOF +#define PACKAGE_TARNAME "$PACKAGE_TARNAME" +_ACEOF + + +cat >>confdefs.h <<_ACEOF +#define PACKAGE_VERSION "$PACKAGE_VERSION" +_ACEOF + + +cat >>confdefs.h <<_ACEOF +#define PACKAGE_STRING "$PACKAGE_STRING" +_ACEOF + + +cat >>confdefs.h <<_ACEOF +#define PACKAGE_BUGREPORT "$PACKAGE_BUGREPORT" +_ACEOF + + +# Let the site file select an alternate cache file if it wants to. +# Prefer explicitly selected file to automatically selected ones. +if test -z "$CONFIG_SITE"; then + if test "x$prefix" != xNONE; then + CONFIG_SITE="$prefix/share/config.site $prefix/etc/config.site" + else + CONFIG_SITE="$ac_default_prefix/share/config.site $ac_default_prefix/etc/config.site" + fi +fi +for ac_site_file in $CONFIG_SITE; do + if test -r "$ac_site_file"; then + { echo "$as_me:$LINENO: loading site script $ac_site_file" >&5 +echo "$as_me: loading site script $ac_site_file" >&6;} + sed 's/^/| /' "$ac_site_file" >&5 + . "$ac_site_file" + fi +done + +if test -r "$cache_file"; then + # Some versions of bash will fail to source /dev/null (special + # files actually), so we avoid doing that. + if test -f "$cache_file"; then + { echo "$as_me:$LINENO: loading cache $cache_file" >&5 +echo "$as_me: loading cache $cache_file" >&6;} + case $cache_file in + [\\/]* | ?:[\\/]* ) . $cache_file;; + *) . ./$cache_file;; + esac + fi +else + { echo "$as_me:$LINENO: creating cache $cache_file" >&5 +echo "$as_me: creating cache $cache_file" >&6;} + >$cache_file +fi + +# Check that the precious variables saved in the cache have kept the same +# value. +ac_cache_corrupted=false +for ac_var in `(set) 2>&1 | + sed -n 's/^ac_env_\([a-zA-Z_0-9]*\)_set=.*/\1/p'`; do + eval ac_old_set=\$ac_cv_env_${ac_var}_set + eval ac_new_set=\$ac_env_${ac_var}_set + eval ac_old_val="\$ac_cv_env_${ac_var}_value" + eval ac_new_val="\$ac_env_${ac_var}_value" + case $ac_old_set,$ac_new_set in + set,) + { echo "$as_me:$LINENO: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5 +echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;} + ac_cache_corrupted=: ;; + ,set) + { echo "$as_me:$LINENO: error: \`$ac_var' was not set in the previous run" >&5 +echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;} + ac_cache_corrupted=: ;; + ,);; + *) + if test "x$ac_old_val" != "x$ac_new_val"; then + { echo "$as_me:$LINENO: error: \`$ac_var' has changed since the previous run:" >&5 +echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;} + { echo "$as_me:$LINENO: former value: $ac_old_val" >&5 +echo "$as_me: former value: $ac_old_val" >&2;} + { echo "$as_me:$LINENO: current value: $ac_new_val" >&5 +echo "$as_me: current value: $ac_new_val" >&2;} + ac_cache_corrupted=: + fi;; + esac + # Pass precious variables to config.status. + if test "$ac_new_set" = set; then + case $ac_new_val in + *" "*|*" "*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\"\']*) + ac_arg=$ac_var=`echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;; + *) ac_arg=$ac_var=$ac_new_val ;; + esac + case " $ac_configure_args " in + *" '$ac_arg' "*) ;; # Avoid dups. Use of quotes ensures accuracy. + *) ac_configure_args="$ac_configure_args '$ac_arg'" ;; + esac + fi +done +if $ac_cache_corrupted; then + { echo "$as_me:$LINENO: error: changes in the environment can compromise the build" >&5 +echo "$as_me: error: changes in the environment can compromise the build" >&2;} + { { echo "$as_me:$LINENO: error: run \`make distclean' and/or \`rm $cache_file' and start over" >&5 +echo "$as_me: error: run \`make distclean' and/or \`rm $cache_file' and start over" >&2;} + { (exit 1); exit 1; }; } +fi + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + + + + + + + + + + + + + + + + + + +ac_aux_dir= +for ac_dir in ./config $srcdir/./config; do + if test -f $ac_dir/install-sh; then + ac_aux_dir=$ac_dir + ac_install_sh="$ac_aux_dir/install-sh -c" + break + elif test -f $ac_dir/install.sh; then + ac_aux_dir=$ac_dir + ac_install_sh="$ac_aux_dir/install.sh -c" + break + elif test -f $ac_dir/shtool; then + ac_aux_dir=$ac_dir + ac_install_sh="$ac_aux_dir/shtool install -c" + break + fi +done +if test -z "$ac_aux_dir"; then + { { echo "$as_me:$LINENO: error: cannot find install-sh or install.sh in ./config $srcdir/./config" >&5 +echo "$as_me: error: cannot find install-sh or install.sh in ./config $srcdir/./config" >&2;} + { (exit 1); exit 1; }; } +fi +ac_config_guess="$SHELL $ac_aux_dir/config.guess" +ac_config_sub="$SHELL $ac_aux_dir/config.sub" +ac_configure="$SHELL $ac_aux_dir/configure" # This should be Cygnus configure. + + +# Make sure we can run config.sub. +$ac_config_sub sun4 >/dev/null 2>&1 || + { { echo "$as_me:$LINENO: error: cannot run $ac_config_sub" >&5 +echo "$as_me: error: cannot run $ac_config_sub" >&2;} + { (exit 1); exit 1; }; } + +echo "$as_me:$LINENO: checking build system type" >&5 +echo $ECHO_N "checking build system type... $ECHO_C" >&6 +if test "${ac_cv_build+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + ac_cv_build_alias=$build_alias +test -z "$ac_cv_build_alias" && + ac_cv_build_alias=`$ac_config_guess` +test -z "$ac_cv_build_alias" && + { { echo "$as_me:$LINENO: error: cannot guess build type; you must specify one" >&5 +echo "$as_me: error: cannot guess build type; you must specify one" >&2;} + { (exit 1); exit 1; }; } +ac_cv_build=`$ac_config_sub $ac_cv_build_alias` || + { { echo "$as_me:$LINENO: error: $ac_config_sub $ac_cv_build_alias failed" >&5 +echo "$as_me: error: $ac_config_sub $ac_cv_build_alias failed" >&2;} + { (exit 1); exit 1; }; } + +fi +echo "$as_me:$LINENO: result: $ac_cv_build" >&5 +echo "${ECHO_T}$ac_cv_build" >&6 +build=$ac_cv_build +build_cpu=`echo $ac_cv_build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'` +build_vendor=`echo $ac_cv_build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'` +build_os=`echo $ac_cv_build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'` + + +echo "$as_me:$LINENO: checking host system type" >&5 +echo $ECHO_N "checking host system type... $ECHO_C" >&6 +if test "${ac_cv_host+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + ac_cv_host_alias=$host_alias +test -z "$ac_cv_host_alias" && + ac_cv_host_alias=$ac_cv_build_alias +ac_cv_host=`$ac_config_sub $ac_cv_host_alias` || + { { echo "$as_me:$LINENO: error: $ac_config_sub $ac_cv_host_alias failed" >&5 +echo "$as_me: error: $ac_config_sub $ac_cv_host_alias failed" >&2;} + { (exit 1); exit 1; }; } + +fi +echo "$as_me:$LINENO: result: $ac_cv_host" >&5 +echo "${ECHO_T}$ac_cv_host" >&6 +host=$ac_cv_host +host_cpu=`echo $ac_cv_host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'` +host_vendor=`echo $ac_cv_host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'` +host_os=`echo $ac_cv_host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'` + + + + +case $host_cpu in + i?86 ) + host_cpu="i386" + ;; + powerpc ) + host_cpu="ppc" + ;; + * ) + host_cpu="$host_cpu" + ;; +esac +case $host_cpu in + i386|ppc|x86_64|alpha|ppc64|ia64) + ;; + * ) + { { echo "$as_me:$LINENO: error: unsupported architecture $host_cpu" >&5 +echo "$as_me: error: unsupported architecture $host_cpu" >&2;} + { (exit 1); exit 1; }; } + ;; +esac +ARCH=$host_cpu + + +OBJDIR=`pwd`/objdir +if test "${host_alias}" ; then + OBJDIR="$OBJDIR-${host_alias}" +fi +EXTRA_CFLAGS="" + +# Check whether --with-objdir or --without-objdir was given. +if test "${with_objdir+set}" = set; then + withval="$with_objdir" + OBJDIR="$withval" +else + OBJDIR="$OBJDIR" +fi; + + +# Check whether --with-gamecube or --without-gamecube was given. +if test "${with_gamecube+set}" = set; then + withval="$with_gamecube" + EXTRA_CFLAGS="$EXTRA_CFLAGS -DCONFIG_GAMECUBE=1" +fi; + + +# Check whether --with-zlib or --without-zlib was given. +if test "${with_zlib+set}" = set; then + withval="$with_zlib" + with_zlib="$withval" +else + with_zlib=yes +fi; + + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args. +set dummy ${ac_tool_prefix}gcc; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_CC+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="${ac_tool_prefix}gcc" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + echo "$as_me:$LINENO: result: $CC" >&5 +echo "${ECHO_T}$CC" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + +fi +if test -z "$ac_cv_prog_CC"; then + ac_ct_CC=$CC + # Extract the first word of "gcc", so it can be a program name with args. +set dummy gcc; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_ac_ct_CC+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$ac_ct_CC"; then + ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_CC="gcc" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + +fi +fi +ac_ct_CC=$ac_cv_prog_ac_ct_CC +if test -n "$ac_ct_CC"; then + echo "$as_me:$LINENO: result: $ac_ct_CC" >&5 +echo "${ECHO_T}$ac_ct_CC" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + + CC=$ac_ct_CC +else + CC="$ac_cv_prog_CC" +fi + +if test -z "$CC"; then + if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args. +set dummy ${ac_tool_prefix}cc; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_CC+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="${ac_tool_prefix}cc" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + echo "$as_me:$LINENO: result: $CC" >&5 +echo "${ECHO_T}$CC" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + +fi +if test -z "$ac_cv_prog_CC"; then + ac_ct_CC=$CC + # Extract the first word of "cc", so it can be a program name with args. +set dummy cc; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_ac_ct_CC+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$ac_ct_CC"; then + ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_CC="cc" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + +fi +fi +ac_ct_CC=$ac_cv_prog_ac_ct_CC +if test -n "$ac_ct_CC"; then + echo "$as_me:$LINENO: result: $ac_ct_CC" >&5 +echo "${ECHO_T}$ac_ct_CC" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + + CC=$ac_ct_CC +else + CC="$ac_cv_prog_CC" +fi + +fi +if test -z "$CC"; then + # Extract the first word of "cc", so it can be a program name with args. +set dummy cc; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_CC+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else + ac_prog_rejected=no +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then + ac_prog_rejected=yes + continue + fi + ac_cv_prog_CC="cc" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + +if test $ac_prog_rejected = yes; then + # We found a bogon in the path, so make sure we never use it. + set dummy $ac_cv_prog_CC + shift + if test $# != 0; then + # We chose a different compiler from the bogus one. + # However, it has the same basename, so the bogon will be chosen + # first if we set CC to just the basename; use the full file name. + shift + ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@" + fi +fi +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + echo "$as_me:$LINENO: result: $CC" >&5 +echo "${ECHO_T}$CC" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + +fi +if test -z "$CC"; then + if test -n "$ac_tool_prefix"; then + for ac_prog in cl + do + # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args. +set dummy $ac_tool_prefix$ac_prog; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_CC+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$CC"; then + ac_cv_prog_CC="$CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CC="$ac_tool_prefix$ac_prog" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + +fi +fi +CC=$ac_cv_prog_CC +if test -n "$CC"; then + echo "$as_me:$LINENO: result: $CC" >&5 +echo "${ECHO_T}$CC" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + + test -n "$CC" && break + done +fi +if test -z "$CC"; then + ac_ct_CC=$CC + for ac_prog in cl +do + # Extract the first word of "$ac_prog", so it can be a program name with args. +set dummy $ac_prog; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_ac_ct_CC+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$ac_ct_CC"; then + ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_CC="$ac_prog" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + +fi +fi +ac_ct_CC=$ac_cv_prog_ac_ct_CC +if test -n "$ac_ct_CC"; then + echo "$as_me:$LINENO: result: $ac_ct_CC" >&5 +echo "${ECHO_T}$ac_ct_CC" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + + test -n "$ac_ct_CC" && break +done + + CC=$ac_ct_CC +fi + +fi + + +test -z "$CC" && { { echo "$as_me:$LINENO: error: no acceptable C compiler found in \$PATH +See \`config.log' for more details." >&5 +echo "$as_me: error: no acceptable C compiler found in \$PATH +See \`config.log' for more details." >&2;} + { (exit 1); exit 1; }; } + +# Provide some information about the compiler. +echo "$as_me:$LINENO:" \ + "checking for C compiler version" >&5 +ac_compiler=`set X $ac_compile; echo $2` +{ (eval echo "$as_me:$LINENO: \"$ac_compiler --version </dev/null >&5\"") >&5 + (eval $ac_compiler --version </dev/null >&5) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } +{ (eval echo "$as_me:$LINENO: \"$ac_compiler -v </dev/null >&5\"") >&5 + (eval $ac_compiler -v </dev/null >&5) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } +{ (eval echo "$as_me:$LINENO: \"$ac_compiler -V </dev/null >&5\"") >&5 + (eval $ac_compiler -V </dev/null >&5) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } + +cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +ac_clean_files_save=$ac_clean_files +ac_clean_files="$ac_clean_files a.out a.exe b.out" +# Try to create an executable without -o first, disregard a.out. +# It will help us diagnose broken compilers, and finding out an intuition +# of exeext. +echo "$as_me:$LINENO: checking for C compiler default output file name" >&5 +echo $ECHO_N "checking for C compiler default output file name... $ECHO_C" >&6 +ac_link_default=`echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'` +if { (eval echo "$as_me:$LINENO: \"$ac_link_default\"") >&5 + (eval $ac_link_default) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; then + # Find the output, starting from the most likely. This scheme is +# not robust to junk in `.', hence go to wildcards (a.*) only as a last +# resort. + +# Be careful to initialize this variable, since it used to be cached. +# Otherwise an old cache value of `no' led to `EXEEXT = no' in a Makefile. +ac_cv_exeext= +# b.out is created by i960 compilers. +for ac_file in a_out.exe a.exe conftest.exe a.out conftest a.* conftest.* b.out +do + test -f "$ac_file" || continue + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.o | *.obj ) + ;; + conftest.$ac_ext ) + # This is the source file. + ;; + [ab].out ) + # We found the default executable, but exeext='' is most + # certainly right. + break;; + *.* ) + ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'` + # FIXME: I believe we export ac_cv_exeext for Libtool, + # but it would be cool to find out if it's true. Does anybody + # maintain Libtool? --akim. + export ac_cv_exeext + break;; + * ) + break;; + esac +done +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +{ { echo "$as_me:$LINENO: error: C compiler cannot create executables +See \`config.log' for more details." >&5 +echo "$as_me: error: C compiler cannot create executables +See \`config.log' for more details." >&2;} + { (exit 77); exit 77; }; } +fi + +ac_exeext=$ac_cv_exeext +echo "$as_me:$LINENO: result: $ac_file" >&5 +echo "${ECHO_T}$ac_file" >&6 + +# Check the compiler produces executables we can run. If not, either +# the compiler is broken, or we cross compile. +echo "$as_me:$LINENO: checking whether the C compiler works" >&5 +echo $ECHO_N "checking whether the C compiler works... $ECHO_C" >&6 +# FIXME: These cross compiler hacks should be removed for Autoconf 3.0 +# If not cross compiling, check that we can run a simple program. +if test "$cross_compiling" != yes; then + if { ac_try='./$ac_file' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + cross_compiling=no + else + if test "$cross_compiling" = maybe; then + cross_compiling=yes + else + { { echo "$as_me:$LINENO: error: cannot run C compiled programs. +If you meant to cross compile, use \`--host'. +See \`config.log' for more details." >&5 +echo "$as_me: error: cannot run C compiled programs. +If you meant to cross compile, use \`--host'. +See \`config.log' for more details." >&2;} + { (exit 1); exit 1; }; } + fi + fi +fi +echo "$as_me:$LINENO: result: yes" >&5 +echo "${ECHO_T}yes" >&6 + +rm -f a.out a.exe conftest$ac_cv_exeext b.out +ac_clean_files=$ac_clean_files_save +# Check the compiler produces executables we can run. If not, either +# the compiler is broken, or we cross compile. +echo "$as_me:$LINENO: checking whether we are cross compiling" >&5 +echo $ECHO_N "checking whether we are cross compiling... $ECHO_C" >&6 +echo "$as_me:$LINENO: result: $cross_compiling" >&5 +echo "${ECHO_T}$cross_compiling" >&6 + +echo "$as_me:$LINENO: checking for suffix of executables" >&5 +echo $ECHO_N "checking for suffix of executables... $ECHO_C" >&6 +if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 + (eval $ac_link) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; then + # If both `conftest.exe' and `conftest' are `present' (well, observable) +# catch `conftest.exe'. For instance with Cygwin, `ls conftest' will +# work properly (i.e., refer to `conftest.exe'), while it won't with +# `rm'. +for ac_file in conftest.exe conftest conftest.*; do + test -f "$ac_file" || continue + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.o | *.obj ) ;; + *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'` + export ac_cv_exeext + break;; + * ) break;; + esac +done +else + { { echo "$as_me:$LINENO: error: cannot compute suffix of executables: cannot compile and link +See \`config.log' for more details." >&5 +echo "$as_me: error: cannot compute suffix of executables: cannot compile and link +See \`config.log' for more details." >&2;} + { (exit 1); exit 1; }; } +fi + +rm -f conftest$ac_cv_exeext +echo "$as_me:$LINENO: result: $ac_cv_exeext" >&5 +echo "${ECHO_T}$ac_cv_exeext" >&6 + +rm -f conftest.$ac_ext +EXEEXT=$ac_cv_exeext +ac_exeext=$EXEEXT +echo "$as_me:$LINENO: checking for suffix of object files" >&5 +echo $ECHO_N "checking for suffix of object files... $ECHO_C" >&6 +if test "${ac_cv_objext+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +rm -f conftest.o conftest.obj +if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 + (eval $ac_compile) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; then + for ac_file in `(ls conftest.o conftest.obj; ls conftest.*) 2>/dev/null`; do + case $ac_file in + *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg ) ;; + *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'` + break;; + esac +done +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +{ { echo "$as_me:$LINENO: error: cannot compute suffix of object files: cannot compile +See \`config.log' for more details." >&5 +echo "$as_me: error: cannot compute suffix of object files: cannot compile +See \`config.log' for more details." >&2;} + { (exit 1); exit 1; }; } +fi + +rm -f conftest.$ac_cv_objext conftest.$ac_ext +fi +echo "$as_me:$LINENO: result: $ac_cv_objext" >&5 +echo "${ECHO_T}$ac_cv_objext" >&6 +OBJEXT=$ac_cv_objext +ac_objext=$OBJEXT +echo "$as_me:$LINENO: checking whether we are using the GNU C compiler" >&5 +echo $ECHO_N "checking whether we are using the GNU C compiler... $ECHO_C" >&6 +if test "${ac_cv_c_compiler_gnu+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ + +int +main () +{ +#ifndef __GNUC__ + choke me +#endif + + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext +if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 + (eval $ac_compile) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest.$ac_objext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + ac_compiler_gnu=yes +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +ac_compiler_gnu=no +fi +rm -f conftest.err conftest.$ac_objext conftest.$ac_ext +ac_cv_c_compiler_gnu=$ac_compiler_gnu + +fi +echo "$as_me:$LINENO: result: $ac_cv_c_compiler_gnu" >&5 +echo "${ECHO_T}$ac_cv_c_compiler_gnu" >&6 +GCC=`test $ac_compiler_gnu = yes && echo yes` +ac_test_CFLAGS=${CFLAGS+set} +ac_save_CFLAGS=$CFLAGS +CFLAGS="-g" +echo "$as_me:$LINENO: checking whether $CC accepts -g" >&5 +echo $ECHO_N "checking whether $CC accepts -g... $ECHO_C" >&6 +if test "${ac_cv_prog_cc_g+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ + +int +main () +{ + + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext +if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 + (eval $ac_compile) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest.$ac_objext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + ac_cv_prog_cc_g=yes +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +ac_cv_prog_cc_g=no +fi +rm -f conftest.err conftest.$ac_objext conftest.$ac_ext +fi +echo "$as_me:$LINENO: result: $ac_cv_prog_cc_g" >&5 +echo "${ECHO_T}$ac_cv_prog_cc_g" >&6 +if test "$ac_test_CFLAGS" = set; then + CFLAGS=$ac_save_CFLAGS +elif test $ac_cv_prog_cc_g = yes; then + if test "$GCC" = yes; then + CFLAGS="-g -O2" + else + CFLAGS="-g" + fi +else + if test "$GCC" = yes; then + CFLAGS="-O2" + else + CFLAGS= + fi +fi +echo "$as_me:$LINENO: checking for $CC option to accept ANSI C" >&5 +echo $ECHO_N "checking for $CC option to accept ANSI C... $ECHO_C" >&6 +if test "${ac_cv_prog_cc_stdc+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + ac_cv_prog_cc_stdc=no +ac_save_CC=$CC +cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include <stdarg.h> +#include <stdio.h> +#include <sys/types.h> +#include <sys/stat.h> +/* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */ +struct buf { int x; }; +FILE * (*rcsopen) (struct buf *, struct stat *, int); +static char *e (p, i) + char **p; + int i; +{ + return p[i]; +} +static char *f (char * (*g) (char **, int), char **p, ...) +{ + char *s; + va_list v; + va_start (v,p); + s = g (p, va_arg (v,int)); + va_end (v); + return s; +} + +/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default. It has + function prototypes and stuff, but not '\xHH' hex character constants. + These don't provoke an error unfortunately, instead are silently treated + as 'x'. The following induces an error, until -std1 is added to get + proper ANSI mode. Curiously '\x00'!='x' always comes out true, for an + array size at least. It's necessary to write '\x00'==0 to get something + that's true only with -std1. */ +int osf4_cc_array ['\x00' == 0 ? 1 : -1]; + +int test (int i, double x); +struct s1 {int (*f) (int a);}; +struct s2 {int (*f) (double a);}; +int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int); +int argc; +char **argv; +int +main () +{ +return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1]; + ; + return 0; +} +_ACEOF +# Don't try gcc -ansi; that turns off useful extensions and +# breaks some systems' header files. +# AIX -qlanglvl=ansi +# Ultrix and OSF/1 -std1 +# HP-UX 10.20 and later -Ae +# HP-UX older versions -Aa -D_HPUX_SOURCE +# SVR4 -Xc -D__EXTENSIONS__ +for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__" +do + CC="$ac_save_CC $ac_arg" + rm -f conftest.$ac_objext +if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 + (eval $ac_compile) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest.$ac_objext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + ac_cv_prog_cc_stdc=$ac_arg +break +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +fi +rm -f conftest.err conftest.$ac_objext +done +rm -f conftest.$ac_ext conftest.$ac_objext +CC=$ac_save_CC + +fi + +case "x$ac_cv_prog_cc_stdc" in + x|xno) + echo "$as_me:$LINENO: result: none needed" >&5 +echo "${ECHO_T}none needed" >&6 ;; + *) + echo "$as_me:$LINENO: result: $ac_cv_prog_cc_stdc" >&5 +echo "${ECHO_T}$ac_cv_prog_cc_stdc" >&6 + CC="$CC $ac_cv_prog_cc_stdc" ;; +esac + +# Some people use a C++ compiler to compile C. Since we use `exit', +# in C++ we need to declare it. In case someone uses the same compiler +# for both compiling C and C++ we need to have the C++ compiler decide +# the declaration of exit, since it's the most demanding environment. +cat >conftest.$ac_ext <<_ACEOF +#ifndef __cplusplus + choke me +#endif +_ACEOF +rm -f conftest.$ac_objext +if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 + (eval $ac_compile) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest.$ac_objext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + for ac_declaration in \ + '' \ + 'extern "C" void std::exit (int) throw (); using std::exit;' \ + 'extern "C" void std::exit (int); using std::exit;' \ + 'extern "C" void exit (int) throw ();' \ + 'extern "C" void exit (int);' \ + 'void exit (int);' +do + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +$ac_declaration +#include <stdlib.h> +int +main () +{ +exit (42); + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext +if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 + (eval $ac_compile) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest.$ac_objext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + : +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +continue +fi +rm -f conftest.err conftest.$ac_objext conftest.$ac_ext + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +$ac_declaration +int +main () +{ +exit (42); + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext +if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 + (eval $ac_compile) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest.$ac_objext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + break +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +fi +rm -f conftest.err conftest.$ac_objext conftest.$ac_ext +done +rm -f conftest* +if test -n "$ac_declaration"; then + echo '#ifdef __cplusplus' >>confdefs.h + echo $ac_declaration >>confdefs.h + echo '#endif' >>confdefs.h +fi + +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +fi +rm -f conftest.err conftest.$ac_objext conftest.$ac_ext +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + + +if test "${build}" != "${host}" ; then + BUILD_CC=${CC_FOR_BUILD-gcc} +else + BUILD_CC="\$(CC)" +fi + + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu +echo "$as_me:$LINENO: checking how to run the C preprocessor" >&5 +echo $ECHO_N "checking how to run the C preprocessor... $ECHO_C" >&6 +# On Suns, sometimes $CPP names a directory. +if test -n "$CPP" && test -d "$CPP"; then + CPP= +fi +if test -z "$CPP"; then + if test "${ac_cv_prog_CPP+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + # Double quotes because CPP needs to be expanded + for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp" + do + ac_preproc_ok=false +for ac_c_preproc_warn_flag in '' yes +do + # Use a header file that comes with gcc, so configuring glibc + # with a fresh cross-compiler works. + # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since + # <limits.h> exists even on freestanding compilers. + # On the NeXT, cc -E runs the code through the compiler's parser, + # not just through cpp. "Syntax error" is here to catch this case. + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#ifdef __STDC__ +# include <limits.h> +#else +# include <assert.h> +#endif + Syntax error +_ACEOF +if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5 + (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } >/dev/null; then + if test -s conftest.err; then + ac_cpp_err=$ac_c_preproc_warn_flag + ac_cpp_err=$ac_cpp_err$ac_c_werror_flag + else + ac_cpp_err= + fi +else + ac_cpp_err=yes +fi +if test -z "$ac_cpp_err"; then + : +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + # Broken: fails on valid input. +continue +fi +rm -f conftest.err conftest.$ac_ext + + # OK, works on sane cases. Now check whether non-existent headers + # can be detected and how. + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include <ac_nonexistent.h> +_ACEOF +if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5 + (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } >/dev/null; then + if test -s conftest.err; then + ac_cpp_err=$ac_c_preproc_warn_flag + ac_cpp_err=$ac_cpp_err$ac_c_werror_flag + else + ac_cpp_err= + fi +else + ac_cpp_err=yes +fi +if test -z "$ac_cpp_err"; then + # Broken: success on invalid input. +continue +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + # Passes both tests. +ac_preproc_ok=: +break +fi +rm -f conftest.err conftest.$ac_ext + +done +# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. +rm -f conftest.err conftest.$ac_ext +if $ac_preproc_ok; then + break +fi + + done + ac_cv_prog_CPP=$CPP + +fi + CPP=$ac_cv_prog_CPP +else + ac_cv_prog_CPP=$CPP +fi +echo "$as_me:$LINENO: result: $CPP" >&5 +echo "${ECHO_T}$CPP" >&6 +ac_preproc_ok=false +for ac_c_preproc_warn_flag in '' yes +do + # Use a header file that comes with gcc, so configuring glibc + # with a fresh cross-compiler works. + # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since + # <limits.h> exists even on freestanding compilers. + # On the NeXT, cc -E runs the code through the compiler's parser, + # not just through cpp. "Syntax error" is here to catch this case. + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#ifdef __STDC__ +# include <limits.h> +#else +# include <assert.h> +#endif + Syntax error +_ACEOF +if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5 + (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } >/dev/null; then + if test -s conftest.err; then + ac_cpp_err=$ac_c_preproc_warn_flag + ac_cpp_err=$ac_cpp_err$ac_c_werror_flag + else + ac_cpp_err= + fi +else + ac_cpp_err=yes +fi +if test -z "$ac_cpp_err"; then + : +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + # Broken: fails on valid input. +continue +fi +rm -f conftest.err conftest.$ac_ext + + # OK, works on sane cases. Now check whether non-existent headers + # can be detected and how. + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include <ac_nonexistent.h> +_ACEOF +if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5 + (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } >/dev/null; then + if test -s conftest.err; then + ac_cpp_err=$ac_c_preproc_warn_flag + ac_cpp_err=$ac_cpp_err$ac_c_werror_flag + else + ac_cpp_err= + fi +else + ac_cpp_err=yes +fi +if test -z "$ac_cpp_err"; then + # Broken: success on invalid input. +continue +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + # Passes both tests. +ac_preproc_ok=: +break +fi +rm -f conftest.err conftest.$ac_ext + +done +# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. +rm -f conftest.err conftest.$ac_ext +if $ac_preproc_ok; then + : +else + { { echo "$as_me:$LINENO: error: C preprocessor \"$CPP\" fails sanity check +See \`config.log' for more details." >&5 +echo "$as_me: error: C preprocessor \"$CPP\" fails sanity check +See \`config.log' for more details." >&2;} + { (exit 1); exit 1; }; } +fi + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu + +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}ld", so it can be a program name with args. +set dummy ${ac_tool_prefix}ld; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_LD+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$LD"; then + ac_cv_prog_LD="$LD" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_LD="${ac_tool_prefix}ld" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + +fi +fi +LD=$ac_cv_prog_LD +if test -n "$LD"; then + echo "$as_me:$LINENO: result: $LD" >&5 +echo "${ECHO_T}$LD" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + +fi +if test -z "$ac_cv_prog_LD"; then + ac_ct_LD=$LD + # Extract the first word of "ld", so it can be a program name with args. +set dummy ld; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_ac_ct_LD+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$ac_ct_LD"; then + ac_cv_prog_ac_ct_LD="$ac_ct_LD" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_LD="ld" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + + test -z "$ac_cv_prog_ac_ct_LD" && ac_cv_prog_ac_ct_LD=""no"" +fi +fi +ac_ct_LD=$ac_cv_prog_ac_ct_LD +if test -n "$ac_ct_LD"; then + echo "$as_me:$LINENO: result: $ac_ct_LD" >&5 +echo "${ECHO_T}$ac_ct_LD" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + + LD=$ac_ct_LD +else + LD="$ac_cv_prog_LD" +fi + +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}as", so it can be a program name with args. +set dummy ${ac_tool_prefix}as; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_AS+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$AS"; then + ac_cv_prog_AS="$AS" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_AS="${ac_tool_prefix}as" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + +fi +fi +AS=$ac_cv_prog_AS +if test -n "$AS"; then + echo "$as_me:$LINENO: result: $AS" >&5 +echo "${ECHO_T}$AS" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + +fi +if test -z "$ac_cv_prog_AS"; then + ac_ct_AS=$AS + # Extract the first word of "as", so it can be a program name with args. +set dummy as; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_ac_ct_AS+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$ac_ct_AS"; then + ac_cv_prog_ac_ct_AS="$ac_ct_AS" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_AS="as" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + + test -z "$ac_cv_prog_ac_ct_AS" && ac_cv_prog_ac_ct_AS=""no"" +fi +fi +ac_ct_AS=$ac_cv_prog_ac_ct_AS +if test -n "$ac_ct_AS"; then + echo "$as_me:$LINENO: result: $ac_ct_AS" >&5 +echo "${ECHO_T}$ac_ct_AS" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + + AS=$ac_ct_AS +else + AS="$ac_cv_prog_AS" +fi + +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}objcopy", so it can be a program name with args. +set dummy ${ac_tool_prefix}objcopy; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_OBJCOPY+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$OBJCOPY"; then + ac_cv_prog_OBJCOPY="$OBJCOPY" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_OBJCOPY="${ac_tool_prefix}objcopy" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + +fi +fi +OBJCOPY=$ac_cv_prog_OBJCOPY +if test -n "$OBJCOPY"; then + echo "$as_me:$LINENO: result: $OBJCOPY" >&5 +echo "${ECHO_T}$OBJCOPY" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + +fi +if test -z "$ac_cv_prog_OBJCOPY"; then + ac_ct_OBJCOPY=$OBJCOPY + # Extract the first word of "objcopy", so it can be a program name with args. +set dummy objcopy; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_ac_ct_OBJCOPY+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$ac_ct_OBJCOPY"; then + ac_cv_prog_ac_ct_OBJCOPY="$ac_ct_OBJCOPY" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_OBJCOPY="objcopy" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + + test -z "$ac_cv_prog_ac_ct_OBJCOPY" && ac_cv_prog_ac_ct_OBJCOPY=""no"" +fi +fi +ac_ct_OBJCOPY=$ac_cv_prog_ac_ct_OBJCOPY +if test -n "$ac_ct_OBJCOPY"; then + echo "$as_me:$LINENO: result: $ac_ct_OBJCOPY" >&5 +echo "${ECHO_T}$ac_ct_OBJCOPY" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + + OBJCOPY=$ac_ct_OBJCOPY +else + OBJCOPY="$ac_cv_prog_OBJCOPY" +fi + +if test -n "$ac_tool_prefix"; then + # Extract the first word of "${ac_tool_prefix}ar", so it can be a program name with args. +set dummy ${ac_tool_prefix}ar; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_AR+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$AR"; then + ac_cv_prog_AR="$AR" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_AR="${ac_tool_prefix}ar" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + +fi +fi +AR=$ac_cv_prog_AR +if test -n "$AR"; then + echo "$as_me:$LINENO: result: $AR" >&5 +echo "${ECHO_T}$AR" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + +fi +if test -z "$ac_cv_prog_AR"; then + ac_ct_AR=$AR + # Extract the first word of "ar", so it can be a program name with args. +set dummy ar; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_ac_ct_AR+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$ac_ct_AR"; then + ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_ac_ct_AR="ar" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + + test -z "$ac_cv_prog_ac_ct_AR" && ac_cv_prog_ac_ct_AR="""" +fi +fi +ac_ct_AR=$ac_cv_prog_ac_ct_AR +if test -n "$ac_ct_AR"; then + echo "$as_me:$LINENO: result: $ac_ct_AR" >&5 +echo "${ECHO_T}$ac_ct_AR" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + + AR=$ac_ct_AR +else + AR="$ac_cv_prog_AR" +fi + + +# Find a good install program. We prefer a C program (faster), +# so one script is as good as another. But avoid the broken or +# incompatible versions: +# SysV /etc/install, /usr/sbin/install +# SunOS /usr/etc/install +# IRIX /sbin/install +# AIX /bin/install +# AmigaOS /C/install, which installs bootblocks on floppy discs +# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag +# AFS /usr/afsws/bin/install, which mishandles nonexistent args +# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff" +# OS/2's system install, which has a completely different semantic +# ./install, which can be erroneously created by make from ./install.sh. +echo "$as_me:$LINENO: checking for a BSD-compatible install" >&5 +echo $ECHO_N "checking for a BSD-compatible install... $ECHO_C" >&6 +if test -z "$INSTALL"; then +if test "${ac_cv_path_install+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + # Account for people who put trailing slashes in PATH elements. +case $as_dir/ in + ./ | .// | /cC/* | \ + /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \ + ?:\\/os2\\/install\\/* | ?:\\/OS2\\/INSTALL\\/* | \ + /usr/ucb/* ) ;; + *) + # OSF1 and SCO ODT 3.0 have their own names for install. + # Don't use installbsd from OSF since it installs stuff as root + # by default. + for ac_prog in ginstall scoinst install; do + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then + if test $ac_prog = install && + grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then + # AIX install. It has an incompatible calling convention. + : + elif test $ac_prog = install && + grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then + # program-specific install script used by HP pwplus--don't use. + : + else + ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c" + break 3 + fi + fi + done + done + ;; +esac +done + + +fi + if test "${ac_cv_path_install+set}" = set; then + INSTALL=$ac_cv_path_install + else + # As a last resort, use the slow shell script. We don't cache a + # path for INSTALL within a source directory, because that will + # break other packages using the cache if that directory is + # removed, or if the path is relative. + INSTALL=$ac_install_sh + fi +fi +echo "$as_me:$LINENO: result: $INSTALL" >&5 +echo "${ECHO_T}$INSTALL" >&6 + +# Use test -z because SunOS4 sh mishandles braces in ${var-val}. +# It thinks the first close brace ends the variable substitution. +test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}' + +test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}' + +test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644' + +# Extract the first word of "mkdir", so it can be a program name with args. +set dummy mkdir; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_MKDIR+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$MKDIR"; then + ac_cv_prog_MKDIR="$MKDIR" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_MKDIR="mkdir" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + + test -z "$ac_cv_prog_MKDIR" && ac_cv_prog_MKDIR=""no"" +fi +fi +MKDIR=$ac_cv_prog_MKDIR +if test -n "$MKDIR"; then + echo "$as_me:$LINENO: result: $MKDIR" >&5 +echo "${ECHO_T}$MKDIR" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + +# Extract the first word of "rm", so it can be a program name with args. +set dummy rm; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_RM+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$RM"; then + ac_cv_prog_RM="$RM" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_RM="rm" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + + test -z "$ac_cv_prog_RM" && ac_cv_prog_RM=""no"" +fi +fi +RM=$ac_cv_prog_RM +if test -n "$RM"; then + echo "$as_me:$LINENO: result: $RM" >&5 +echo "${ECHO_T}$RM" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + +# Extract the first word of "cp", so it can be a program name with args. +set dummy cp; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_CP+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$CP"; then + ac_cv_prog_CP="$CP" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_CP="cp" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + + test -z "$ac_cv_prog_CP" && ac_cv_prog_CP=""no"" +fi +fi +CP=$ac_cv_prog_CP +if test -n "$CP"; then + echo "$as_me:$LINENO: result: $CP" >&5 +echo "${ECHO_T}$CP" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + +# Extract the first word of "ln", so it can be a program name with args. +set dummy ln; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_LN+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$LN"; then + ac_cv_prog_LN="$LN" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_LN="ln" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + + test -z "$ac_cv_prog_LN" && ac_cv_prog_LN=""no"" +fi +fi +LN=$ac_cv_prog_LN +if test -n "$LN"; then + echo "$as_me:$LINENO: result: $LN" >&5 +echo "${ECHO_T}$LN" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + +# Extract the first word of "tar", so it can be a program name with args. +set dummy tar; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_TAR+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$TAR"; then + ac_cv_prog_TAR="$TAR" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_TAR="tar" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + + test -z "$ac_cv_prog_TAR" && ac_cv_prog_TAR=""no"" +fi +fi +TAR=$ac_cv_prog_TAR +if test -n "$TAR"; then + echo "$as_me:$LINENO: result: $TAR" >&5 +echo "${ECHO_T}$TAR" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + +# Extract the first word of "rpmbuild", so it can be a program name with args. +set dummy rpmbuild; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_RPMBUILD+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$RPMBUILD"; then + ac_cv_prog_RPMBUILD="$RPMBUILD" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_RPMBUILD="rpmbuild" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + + test -z "$ac_cv_prog_RPMBUILD" && ac_cv_prog_RPMBUILD=""no"" +fi +fi +RPMBUILD=$ac_cv_prog_RPMBUILD +if test -n "$RPMBUILD"; then + echo "$as_me:$LINENO: result: $RPMBUILD" >&5 +echo "${ECHO_T}$RPMBUILD" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + +# Extract the first word of "sed", so it can be a program name with args. +set dummy sed; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_SED+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$SED"; then + ac_cv_prog_SED="$SED" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_SED="sed" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + + test -z "$ac_cv_prog_SED" && ac_cv_prog_SED=""no"" +fi +fi +SED=$ac_cv_prog_SED +if test -n "$SED"; then + echo "$as_me:$LINENO: result: $SED" >&5 +echo "${ECHO_T}$SED" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + +# Extract the first word of "find", so it can be a program name with args. +set dummy find; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_FIND+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$FIND"; then + ac_cv_prog_FIND="$FIND" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_FIND="find" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + + test -z "$ac_cv_prog_FIND" && ac_cv_prog_FIND=""no"" +fi +fi +FIND=$ac_cv_prog_FIND +if test -n "$FIND"; then + echo "$as_me:$LINENO: result: $FIND" >&5 +echo "${ECHO_T}$FIND" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + +# Extract the first word of "xargs", so it can be a program name with args. +set dummy xargs; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_XARGS+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$XARGS"; then + ac_cv_prog_XARGS="$XARGS" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_XARGS="xargs" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + + test -z "$ac_cv_prog_XARGS" && ac_cv_prog_XARGS=""no"" +fi +fi +XARGS=$ac_cv_prog_XARGS +if test -n "$XARGS"; then + echo "$as_me:$LINENO: result: $XARGS" >&5 +echo "${ECHO_T}$XARGS" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + +# Extract the first word of "dirname", so it can be a program name with args. +set dummy dirname; ac_word=$2 +echo "$as_me:$LINENO: checking for $ac_word" >&5 +echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6 +if test "${ac_cv_prog_DIRNAME+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test -n "$DIRNAME"; then + ac_cv_prog_DIRNAME="$DIRNAME" # Let the user override the test. +else +as_save_IFS=$IFS; IFS=$PATH_SEPARATOR +for as_dir in $PATH +do + IFS=$as_save_IFS + test -z "$as_dir" && as_dir=. + for ac_exec_ext in '' $ac_executable_extensions; do + if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then + ac_cv_prog_DIRNAME="dirname" + echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5 + break 2 + fi +done +done + + test -z "$ac_cv_prog_DIRNAME" && ac_cv_prog_DIRNAME=""no"" +fi +fi +DIRNAME=$ac_cv_prog_DIRNAME +if test -n "$DIRNAME"; then + echo "$as_me:$LINENO: result: $DIRNAME" >&5 +echo "${ECHO_T}$DIRNAME" >&6 +else + echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6 +fi + + +if test "$with_zlib" = yes ; then + +echo "$as_me:$LINENO: checking for egrep" >&5 +echo $ECHO_N "checking for egrep... $ECHO_C" >&6 +if test "${ac_cv_prog_egrep+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if echo a | (grep -E '(a|b)') >/dev/null 2>&1 + then ac_cv_prog_egrep='grep -E' + else ac_cv_prog_egrep='egrep' + fi +fi +echo "$as_me:$LINENO: result: $ac_cv_prog_egrep" >&5 +echo "${ECHO_T}$ac_cv_prog_egrep" >&6 + EGREP=$ac_cv_prog_egrep + + +echo "$as_me:$LINENO: checking for ANSI C header files" >&5 +echo $ECHO_N "checking for ANSI C header files... $ECHO_C" >&6 +if test "${ac_cv_header_stdc+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include <stdlib.h> +#include <stdarg.h> +#include <string.h> +#include <float.h> + +int +main () +{ + + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext +if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 + (eval $ac_compile) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest.$ac_objext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + ac_cv_header_stdc=yes +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +ac_cv_header_stdc=no +fi +rm -f conftest.err conftest.$ac_objext conftest.$ac_ext + +if test $ac_cv_header_stdc = yes; then + # SunOS 4.x string.h does not declare mem*, contrary to ANSI. + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include <string.h> + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "memchr" >/dev/null 2>&1; then + : +else + ac_cv_header_stdc=no +fi +rm -f conftest* + +fi + +if test $ac_cv_header_stdc = yes; then + # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI. + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include <stdlib.h> + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "free" >/dev/null 2>&1; then + : +else + ac_cv_header_stdc=no +fi +rm -f conftest* + +fi + +if test $ac_cv_header_stdc = yes; then + # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi. + if test "$cross_compiling" = yes; then + : +else + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include <ctype.h> +#if ((' ' & 0x0FF) == 0x020) +# define ISLOWER(c) ('a' <= (c) && (c) <= 'z') +# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c)) +#else +# define ISLOWER(c) \ + (('a' <= (c) && (c) <= 'i') \ + || ('j' <= (c) && (c) <= 'r') \ + || ('s' <= (c) && (c) <= 'z')) +# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c)) +#endif + +#define XOR(e, f) (((e) && !(f)) || (!(e) && (f))) +int +main () +{ + int i; + for (i = 0; i < 256; i++) + if (XOR (islower (i), ISLOWER (i)) + || toupper (i) != TOUPPER (i)) + exit(2); + exit (0); +} +_ACEOF +rm -f conftest$ac_exeext +if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 + (eval $ac_link) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && { ac_try='./conftest$ac_exeext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + : +else + echo "$as_me: program exited with status $ac_status" >&5 +echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +( exit $ac_status ) +ac_cv_header_stdc=no +fi +rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext +fi +fi +fi +echo "$as_me:$LINENO: result: $ac_cv_header_stdc" >&5 +echo "${ECHO_T}$ac_cv_header_stdc" >&6 +if test $ac_cv_header_stdc = yes; then + +cat >>confdefs.h <<\_ACEOF +#define STDC_HEADERS 1 +_ACEOF + +fi + +# On IRIX 5.3, sys/types and inttypes.h are conflicting. + + + + + + + + + +for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \ + inttypes.h stdint.h unistd.h +do +as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh` +echo "$as_me:$LINENO: checking for $ac_header" >&5 +echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6 +if eval "test \"\${$as_ac_Header+set}\" = set"; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +$ac_includes_default + +#include <$ac_header> +_ACEOF +rm -f conftest.$ac_objext +if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 + (eval $ac_compile) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest.$ac_objext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + eval "$as_ac_Header=yes" +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +eval "$as_ac_Header=no" +fi +rm -f conftest.err conftest.$ac_objext conftest.$ac_ext +fi +echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5 +echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6 +if test `eval echo '${'$as_ac_Header'}'` = yes; then + cat >>confdefs.h <<_ACEOF +#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1 +_ACEOF + +fi + +done + + +if test "${ac_cv_header_zlib_h+set}" = set; then + echo "$as_me:$LINENO: checking for zlib.h" >&5 +echo $ECHO_N "checking for zlib.h... $ECHO_C" >&6 +if test "${ac_cv_header_zlib_h+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +fi +echo "$as_me:$LINENO: result: $ac_cv_header_zlib_h" >&5 +echo "${ECHO_T}$ac_cv_header_zlib_h" >&6 +else + # Is the header compilable? +echo "$as_me:$LINENO: checking zlib.h usability" >&5 +echo $ECHO_N "checking zlib.h usability... $ECHO_C" >&6 +cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +$ac_includes_default +#include <zlib.h> +_ACEOF +rm -f conftest.$ac_objext +if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 + (eval $ac_compile) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest.$ac_objext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + ac_header_compiler=yes +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +ac_header_compiler=no +fi +rm -f conftest.err conftest.$ac_objext conftest.$ac_ext +echo "$as_me:$LINENO: result: $ac_header_compiler" >&5 +echo "${ECHO_T}$ac_header_compiler" >&6 + +# Is the header present? +echo "$as_me:$LINENO: checking zlib.h presence" >&5 +echo $ECHO_N "checking zlib.h presence... $ECHO_C" >&6 +cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include <zlib.h> +_ACEOF +if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5 + (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } >/dev/null; then + if test -s conftest.err; then + ac_cpp_err=$ac_c_preproc_warn_flag + ac_cpp_err=$ac_cpp_err$ac_c_werror_flag + else + ac_cpp_err= + fi +else + ac_cpp_err=yes +fi +if test -z "$ac_cpp_err"; then + ac_header_preproc=yes +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + ac_header_preproc=no +fi +rm -f conftest.err conftest.$ac_ext +echo "$as_me:$LINENO: result: $ac_header_preproc" >&5 +echo "${ECHO_T}$ac_header_preproc" >&6 + +# So? What about this header? +case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in + yes:no: ) + { echo "$as_me:$LINENO: WARNING: zlib.h: accepted by the compiler, rejected by the preprocessor!" >&5 +echo "$as_me: WARNING: zlib.h: accepted by the compiler, rejected by the preprocessor!" >&2;} + { echo "$as_me:$LINENO: WARNING: zlib.h: proceeding with the compiler's result" >&5 +echo "$as_me: WARNING: zlib.h: proceeding with the compiler's result" >&2;} + ac_header_preproc=yes + ;; + no:yes:* ) + { echo "$as_me:$LINENO: WARNING: zlib.h: present but cannot be compiled" >&5 +echo "$as_me: WARNING: zlib.h: present but cannot be compiled" >&2;} + { echo "$as_me:$LINENO: WARNING: zlib.h: check for missing prerequisite headers?" >&5 +echo "$as_me: WARNING: zlib.h: check for missing prerequisite headers?" >&2;} + { echo "$as_me:$LINENO: WARNING: zlib.h: see the Autoconf documentation" >&5 +echo "$as_me: WARNING: zlib.h: see the Autoconf documentation" >&2;} + { echo "$as_me:$LINENO: WARNING: zlib.h: section \"Present But Cannot Be Compiled\"" >&5 +echo "$as_me: WARNING: zlib.h: section \"Present But Cannot Be Compiled\"" >&2;} + { echo "$as_me:$LINENO: WARNING: zlib.h: proceeding with the preprocessor's result" >&5 +echo "$as_me: WARNING: zlib.h: proceeding with the preprocessor's result" >&2;} + { echo "$as_me:$LINENO: WARNING: zlib.h: in the future, the compiler will take precedence" >&5 +echo "$as_me: WARNING: zlib.h: in the future, the compiler will take precedence" >&2;} + ( + cat <<\_ASBOX +## ------------------------------------------ ## +## Report this to the AC_PACKAGE_NAME lists. ## +## ------------------------------------------ ## +_ASBOX + ) | + sed "s/^/$as_me: WARNING: /" >&2 + ;; +esac +echo "$as_me:$LINENO: checking for zlib.h" >&5 +echo $ECHO_N "checking for zlib.h... $ECHO_C" >&6 +if test "${ac_cv_header_zlib_h+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + ac_cv_header_zlib_h=$ac_header_preproc +fi +echo "$as_me:$LINENO: result: $ac_cv_header_zlib_h" >&5 +echo "${ECHO_T}$ac_cv_header_zlib_h" >&6 + +fi +if test $ac_cv_header_zlib_h = yes; then + echo "$as_me:$LINENO: checking for inflateInit_ in -lz" >&5 +echo $ECHO_N "checking for inflateInit_ in -lz... $ECHO_C" >&6 +if test "${ac_cv_lib_z_inflateInit_+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + ac_check_lib_save_LIBS=$LIBS +LIBS="-lz $LIBS" + +cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ + +/* Override any gcc2 internal prototype to avoid an error. */ +#ifdef __cplusplus +extern "C" +#endif +/* We use char because int might match the return type of a gcc2 + builtin and then its argument prototype would still apply. */ +char inflateInit_ (); +int +main () +{ +inflateInit_ (); + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext conftest$ac_exeext +if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 + (eval $ac_link) 2>conftest.er1 + ac_status=$? + grep -v '^ *+' conftest.er1 >conftest.err + rm -f conftest.er1 + cat conftest.err >&5 + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; } && + { ac_try='test -s conftest$ac_exeext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + ac_cv_lib_z_inflateInit_=yes +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +ac_cv_lib_z_inflateInit_=no +fi +rm -f conftest.err conftest.$ac_objext \ + conftest$ac_exeext conftest.$ac_ext +LIBS=$ac_check_lib_save_LIBS +fi +echo "$as_me:$LINENO: result: $ac_cv_lib_z_inflateInit_" >&5 +echo "${ECHO_T}$ac_cv_lib_z_inflateInit_" >&6 +if test $ac_cv_lib_z_inflateInit_ = yes; then + cat >>confdefs.h <<\_ACEOF +#define HAVE_ZLIB_H 1 +_ACEOF + LIBS="$LIBS -lz" +fi + +fi + + +fi + + +CFLAGS='-Wall -g -fno-strict-aliasing $(CPPFLAGS)' +BUILD_CFLAGS='-O2 -Wall $(CPPFLAGS)' + +if test "$CC" = "no"; then { { echo "$as_me:$LINENO: error: cc not found" >&5 +echo "$as_me: error: cc not found" >&2;} + { (exit 1); exit 1; }; } fi +if test "$CPP" = "no"; then { { echo "$as_me:$LINENO: error: cpp not found" >&5 +echo "$as_me: error: cpp not found" >&2;} + { (exit 1); exit 1; }; } fi +if test "$LD" = "no"; then { { echo "$as_me:$LINENO: error: ld not found" >&5 +echo "$as_me: error: ld not found" >&2;} + { (exit 1); exit 1; }; } fi +if test "$AS" = "no"; then { { echo "$as_me:$LINENO: error: as not found" >&5 +echo "$as_me: error: as not found" >&2;} + { (exit 1); exit 1; }; } fi +if test "$OBJCOPY" = "no"; then { { echo "$as_me:$LINENO: error: objcopy not found" >&5 +echo "$as_me: error: objcopy not found" >&2;} + { (exit 1); exit 1; }; } fi +if test "$AR" = "no"; then { { echo "$as_me:$LINENO: error: ar not found" >&5 +echo "$as_me: error: ar not found" >&2;} + { (exit 1); exit 1; }; } fi + +if test "$MKDIR" = "no"; then { { echo "$as_me:$LINENO: error: mkdir not found" >&5 +echo "$as_me: error: mkdir not found" >&2;} + { (exit 1); exit 1; }; } fi +if test "$RM" = "no"; then { { echo "$as_me:$LINENO: error: rm not found" >&5 +echo "$as_me: error: rm not found" >&2;} + { (exit 1); exit 1; }; } fi +if test "$CP" = "no"; then { { echo "$as_me:$LINENO: error: cp not found" >&5 +echo "$as_me: error: cp not found" >&2;} + { (exit 1); exit 1; }; } fi +if test "$LN" = "no"; then { { echo "$as_me:$LINENO: error: ln not found" >&5 +echo "$as_me: error: ln not found" >&2;} + { (exit 1); exit 1; }; } fi +if test "$TAR" = "no"; then { { echo "$as_me:$LINENO: error: tar not found" >&5 +echo "$as_me: error: tar not found" >&2;} + { (exit 1); exit 1; }; } fi +if test "$RPM" = "no"; then { { echo "$as_me:$LINENO: error: rpm not found" >&5 +echo "$as_me: error: rpm not found" >&2;} + { (exit 1); exit 1; }; } fi +if test "$SED" = "no"; then { { echo "$as_me:$LINENO: error: sed not found" >&5 +echo "$as_me: error: sed not found" >&2;} + { (exit 1); exit 1; }; } fi +if test "$FIND" = "no"; then { { echo "$as_me:$LINENO: error: find not found" >&5 +echo "$as_me: error: find not found" >&2;} + { (exit 1); exit 1; }; } fi +if test "$XARGS" = "no"; then { { echo "$as_me:$LINENO: error: xargs not found" >&5 +echo "$as_me: error: xargs not found" >&2;} + { (exit 1); exit 1; }; } fi +if test "$DIRNAME" = "no"; then { { echo "$as_me:$LINENO: error: dirname not found" >&5 +echo "$as_me: error: dirname not found" >&2;} + { (exit 1); exit 1; }; } fi + + + + + + + + + + + ac_config_files="$ac_config_files Makefile.conf" +cat >confcache <<\_ACEOF +# This file is a shell script that caches the results of configure +# tests run on this system so they can be shared between configure +# scripts and configure runs, see configure's option --config-cache. +# It is not useful on other systems. If it contains results you don't +# want to keep, you may remove or edit it. +# +# config.status only pays attention to the cache file if you give it +# the --recheck option to rerun configure. +# +# `ac_cv_env_foo' variables (set or unset) will be overridden when +# loading this file, other *unset* `ac_cv_foo' will be assigned the +# following values. + +_ACEOF + +# The following way of writing the cache mishandles newlines in values, +# but we know of no workaround that is simple, portable, and efficient. +# So, don't put newlines in cache variables' values. +# Ultrix sh set writes to stderr and can't be redirected directly, +# and sets the high bit in the cache file unless we assign to the vars. +{ + (set) 2>&1 | + case `(ac_space=' '; set | grep ac_space) 2>&1` in + *ac_space=\ *) + # `set' does not quote correctly, so add quotes (double-quote + # substitution turns \\\\ into \\, and sed turns \\ into \). + sed -n \ + "s/'/'\\\\''/g; + s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p" + ;; + *) + # `set' quotes correctly as required by POSIX, so do not add quotes. + sed -n \ + "s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1=\\2/p" + ;; + esac; +} | + sed ' + t clear + : clear + s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/ + t end + /^ac_cv_env/!s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/ + : end' >>confcache +if diff $cache_file confcache >/dev/null 2>&1; then :; else + if test -w $cache_file; then + test "x$cache_file" != "x/dev/null" && echo "updating cache $cache_file" + cat confcache >$cache_file + else + echo "not updating unwritable cache $cache_file" + fi +fi +rm -f confcache + +test "x$prefix" = xNONE && prefix=$ac_default_prefix +# Let make expand exec_prefix. +test "x$exec_prefix" = xNONE && exec_prefix='${prefix}' + +# VPATH may cause trouble with some makes, so we remove $(srcdir), +# ${srcdir} and @srcdir@ from VPATH if srcdir is ".", strip leading and +# trailing colons and then remove the whole line if VPATH becomes empty +# (actually we leave an empty line to preserve line numbers). +if test "x$srcdir" = x.; then + ac_vpsub='/^[ ]*VPATH[ ]*=/{ +s/:*\$(srcdir):*/:/; +s/:*\${srcdir}:*/:/; +s/:*@srcdir@:*/:/; +s/^\([^=]*=[ ]*\):*/\1/; +s/:*$//; +s/^[^=]*=[ ]*$//; +}' +fi + +# Transform confdefs.h into DEFS. +# Protect against shell expansion while executing Makefile rules. +# Protect against Makefile macro expansion. +# +# If the first sed substitution is executed (which looks for macros that +# take arguments), then we branch to the quote section. Otherwise, +# look for a macro that doesn't take arguments. +cat >confdef2opt.sed <<\_ACEOF +t clear +: clear +s,^[ ]*#[ ]*define[ ][ ]*\([^ (][^ (]*([^)]*)\)[ ]*\(.*\),-D\1=\2,g +t quote +s,^[ ]*#[ ]*define[ ][ ]*\([^ ][^ ]*\)[ ]*\(.*\),-D\1=\2,g +t quote +d +: quote +s,[ `~#$^&*(){}\\|;'"<>?],\\&,g +s,\[,\\&,g +s,\],\\&,g +s,\$,$$,g +p +_ACEOF +# We use echo to avoid assuming a particular line-breaking character. +# The extra dot is to prevent the shell from consuming trailing +# line-breaks from the sub-command output. A line-break within +# single-quotes doesn't work because, if this script is created in a +# platform that uses two characters for line-breaks (e.g., DOS), tr +# would break. +ac_LF_and_DOT=`echo; echo .` +DEFS=`sed -n -f confdef2opt.sed confdefs.h | tr "$ac_LF_and_DOT" ' .'` +rm -f confdef2opt.sed + + +ac_libobjs= +ac_ltlibobjs= +for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue + # 1. Remove the extension, and $U if already installed. + ac_i=`echo "$ac_i" | + sed 's/\$U\././;s/\.o$//;s/\.obj$//'` + # 2. 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Disable this feature. + alias -g '${1+"$@"}'='"$@"' +elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then + set -o posix +fi +DUALCASE=1; export DUALCASE # for MKS sh + +# Support unset when possible. +if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then + as_unset=unset +else + as_unset=false +fi + + +# Work around bugs in pre-3.0 UWIN ksh. +$as_unset ENV MAIL MAILPATH +PS1='$ ' +PS2='> ' +PS4='+ ' + +# NLS nuisances. +for as_var in \ + LANG LANGUAGE LC_ADDRESS LC_ALL LC_COLLATE LC_CTYPE LC_IDENTIFICATION \ + LC_MEASUREMENT LC_MESSAGES LC_MONETARY LC_NAME LC_NUMERIC LC_PAPER \ + LC_TELEPHONE LC_TIME +do + if (set +x; test -z "`(eval $as_var=C; export $as_var) 2>&1`"); then + eval $as_var=C; export $as_var + else + $as_unset $as_var + fi +done + +# Required to use basename. +if expr a : '\(a\)' >/dev/null 2>&1; then + as_expr=expr +else + as_expr=false +fi + +if (basename /) >/dev/null 2>&1 && test "X`basename / 2>&1`" = "X/"; then + as_basename=basename +else + as_basename=false +fi + + +# Name of the executable. +as_me=`$as_basename "$0" || +$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \ + X"$0" : 'X\(//\)$' \| \ + X"$0" : 'X\(/\)$' \| \ + . : '\(.\)' 2>/dev/null || +echo X/"$0" | + sed '/^.*\/\([^/][^/]*\)\/*$/{ s//\1/; q; } + /^X\/\(\/\/\)$/{ s//\1/; q; } + /^X\/\(\/\).*/{ s//\1/; q; } + s/.*/./; q'` + + +# PATH needs CR, and LINENO needs CR and PATH. +# Avoid depending upon Character Ranges. +as_cr_letters='abcdefghijklmnopqrstuvwxyz' +as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ' +as_cr_Letters=$as_cr_letters$as_cr_LETTERS +as_cr_digits='0123456789' +as_cr_alnum=$as_cr_Letters$as_cr_digits + +# The user is always right. +if test "${PATH_SEPARATOR+set}" != set; then + echo "#! /bin/sh" >conf$$.sh + echo "exit 0" >>conf$$.sh + chmod +x conf$$.sh + if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then + PATH_SEPARATOR=';' + else + PATH_SEPARATOR=: + fi + rm -f conf$$.sh +fi + + + as_lineno_1=$LINENO + as_lineno_2=$LINENO + as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null` + test "x$as_lineno_1" != "x$as_lineno_2" && + test "x$as_lineno_3" = "x$as_lineno_2" || { + # Find who we are. 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-s $tmp/subs.frag; then + ac_more_lines=false + else + # The purpose of the label and of the branching condition is to + # speed up the sed processing (if there are no `@' at all, there + # is no need to browse any of the substitutions). + # These are the two extra sed commands mentioned above. + (echo ':t + /@[a-zA-Z_][a-zA-Z_0-9]*@/!b' && cat $tmp/subs.frag) >$tmp/subs-$ac_sed_frag.sed + if test -z "$ac_sed_cmds"; then + ac_sed_cmds="sed -f $tmp/subs-$ac_sed_frag.sed" + else + ac_sed_cmds="$ac_sed_cmds | sed -f $tmp/subs-$ac_sed_frag.sed" + fi + ac_sed_frag=`expr $ac_sed_frag + 1` + ac_beg=$ac_end + ac_end=`expr $ac_end + $ac_max_sed_lines` + fi + done + if test -z "$ac_sed_cmds"; then + ac_sed_cmds=cat + fi +fi # test -n "$CONFIG_FILES" + +_ACEOF +cat >>$CONFIG_STATUS <<\_ACEOF +for ac_file in : $CONFIG_FILES; do test "x$ac_file" = x: && continue + # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in". + case $ac_file in + - | *:- | *:-:* ) # input from stdin + cat >$tmp/stdin + ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'` + ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;; + *:* ) ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'` + ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;; + * ) ac_file_in=$ac_file.in ;; + esac + + # Compute @srcdir@, @top_srcdir@, and @INSTALL@ for subdirectories. + ac_dir=`(dirname "$ac_file") 2>/dev/null || +$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ + X"$ac_file" : 'X\(//\)[^/]' \| \ + X"$ac_file" : 'X\(//\)$' \| \ + X"$ac_file" : 'X\(/\)' \| \ + . : '\(.\)' 2>/dev/null || +echo X"$ac_file" | + sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; } + /^X\(\/\/\)[^/].*/{ s//\1/; q; } + /^X\(\/\/\)$/{ s//\1/; q; } + /^X\(\/\).*/{ s//\1/; q; } + s/.*/./; q'` + { if $as_mkdir_p; then + mkdir -p "$ac_dir" + else + as_dir="$ac_dir" + as_dirs= + while test ! -d "$as_dir"; do + as_dirs="$as_dir $as_dirs" + as_dir=`(dirname "$as_dir") 2>/dev/null || +$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ + X"$as_dir" : 'X\(//\)[^/]' \| \ + X"$as_dir" : 'X\(//\)$' \| \ + X"$as_dir" : 'X\(/\)' \| \ + . : '\(.\)' 2>/dev/null || +echo X"$as_dir" | + sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; } + /^X\(\/\/\)[^/].*/{ s//\1/; q; } + /^X\(\/\/\)$/{ s//\1/; q; } + /^X\(\/\).*/{ s//\1/; q; } + s/.*/./; q'` + done + test ! -n "$as_dirs" || mkdir $as_dirs + fi || { { echo "$as_me:$LINENO: error: cannot create directory \"$ac_dir\"" >&5 +echo "$as_me: error: cannot create directory \"$ac_dir\"" >&2;} + { (exit 1); exit 1; }; }; } + + ac_builddir=. + +if test "$ac_dir" != .; then + ac_dir_suffix=/`echo "$ac_dir" | sed 's,^\.[\\/],,'` + # A "../" for each directory in $ac_dir_suffix. + ac_top_builddir=`echo "$ac_dir_suffix" | sed 's,/[^\\/]*,../,g'` +else + ac_dir_suffix= ac_top_builddir= +fi + +case $srcdir in + .) # No --srcdir option. We are building in place. + ac_srcdir=. + if test -z "$ac_top_builddir"; then + ac_top_srcdir=. + else + ac_top_srcdir=`echo $ac_top_builddir | sed 's,/$,,'` + fi ;; + [\\/]* | ?:[\\/]* ) # Absolute path. + ac_srcdir=$srcdir$ac_dir_suffix; + ac_top_srcdir=$srcdir ;; + *) # Relative path. + ac_srcdir=$ac_top_builddir$srcdir$ac_dir_suffix + ac_top_srcdir=$ac_top_builddir$srcdir ;; +esac + +# Do not use `cd foo && pwd` to compute absolute paths, because +# the directories may not exist. +case `pwd` in +.) ac_abs_builddir="$ac_dir";; +*) + case "$ac_dir" in + .) ac_abs_builddir=`pwd`;; + [\\/]* | ?:[\\/]* ) ac_abs_builddir="$ac_dir";; + *) ac_abs_builddir=`pwd`/"$ac_dir";; + esac;; +esac +case $ac_abs_builddir in +.) ac_abs_top_builddir=${ac_top_builddir}.;; +*) + case ${ac_top_builddir}. in + .) ac_abs_top_builddir=$ac_abs_builddir;; + [\\/]* | ?:[\\/]* ) ac_abs_top_builddir=${ac_top_builddir}.;; + *) ac_abs_top_builddir=$ac_abs_builddir/${ac_top_builddir}.;; + esac;; +esac +case $ac_abs_builddir in +.) ac_abs_srcdir=$ac_srcdir;; +*) + case $ac_srcdir in + .) ac_abs_srcdir=$ac_abs_builddir;; + [\\/]* | ?:[\\/]* ) ac_abs_srcdir=$ac_srcdir;; + *) ac_abs_srcdir=$ac_abs_builddir/$ac_srcdir;; + esac;; +esac +case $ac_abs_builddir in +.) ac_abs_top_srcdir=$ac_top_srcdir;; +*) + case $ac_top_srcdir in + .) ac_abs_top_srcdir=$ac_abs_builddir;; + [\\/]* | ?:[\\/]* ) ac_abs_top_srcdir=$ac_top_srcdir;; + *) ac_abs_top_srcdir=$ac_abs_builddir/$ac_top_srcdir;; + esac;; +esac + + + case $INSTALL in + [\\/$]* | ?:[\\/]* ) ac_INSTALL=$INSTALL ;; + *) ac_INSTALL=$ac_top_builddir$INSTALL ;; + esac + + # Let's still pretend it is `configure' which instantiates (i.e., don't + # use $as_me), people would be surprised to read: + # /* config.h. Generated by config.status. */ + if test x"$ac_file" = x-; then + configure_input= + else + configure_input="$ac_file. " + fi + configure_input=$configure_input"Generated from `echo $ac_file_in | + sed 's,.*/,,'` by configure." + + # First look for the input files in the build tree, otherwise in the + # src tree. + ac_file_inputs=`IFS=: + for f in $ac_file_in; do + case $f in + -) echo $tmp/stdin ;; + [\\/$]*) + # Absolute (can't be DOS-style, as IFS=:) + test -f "$f" || { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5 +echo "$as_me: error: cannot find input file: $f" >&2;} + { (exit 1); exit 1; }; } + echo "$f";; + *) # Relative + if test -f "$f"; then + # Build tree + echo "$f" + elif test -f "$srcdir/$f"; then + # Source tree + echo "$srcdir/$f" + else + # /dev/null tree + { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5 +echo "$as_me: error: cannot find input file: $f" >&2;} + { (exit 1); exit 1; }; } + fi;; + esac + done` || { (exit 1); exit 1; } + + if test x"$ac_file" != x-; then + { echo "$as_me:$LINENO: creating $ac_file" >&5 +echo "$as_me: creating $ac_file" >&6;} + rm -f "$ac_file" + fi +_ACEOF +cat >>$CONFIG_STATUS <<_ACEOF + sed "$ac_vpsub +$extrasub +_ACEOF +cat >>$CONFIG_STATUS <<\_ACEOF +:t +/@[a-zA-Z_][a-zA-Z_0-9]*@/!b +s,@configure_input@,$configure_input,;t t +s,@srcdir@,$ac_srcdir,;t t +s,@abs_srcdir@,$ac_abs_srcdir,;t t +s,@top_srcdir@,$ac_top_srcdir,;t t +s,@abs_top_srcdir@,$ac_abs_top_srcdir,;t t +s,@builddir@,$ac_builddir,;t t +s,@abs_builddir@,$ac_abs_builddir,;t t +s,@top_builddir@,$ac_top_builddir,;t t +s,@abs_top_builddir@,$ac_abs_top_builddir,;t t +s,@INSTALL@,$ac_INSTALL,;t t +" $ac_file_inputs | (eval "$ac_sed_cmds") >$tmp/out + rm -f $tmp/stdin + if test x"$ac_file" != x-; then + mv $tmp/out $ac_file + else + cat $tmp/out + rm -f $tmp/out + fi + +done +_ACEOF + +cat >>$CONFIG_STATUS <<\_ACEOF + +{ (exit 0); exit 0; } +_ACEOF +chmod +x $CONFIG_STATUS +ac_clean_files=$ac_clean_files_save + + +# configure is writing to config.log, and then calls config.status. +# config.status does its own redirection, appending to config.log. +# Unfortunately, on DOS this fails, as config.log is still kept open +# by configure, so config.status won't be able to write to it; its +# output is simply discarded. So we exec the FD to /dev/null, +# effectively closing config.log, so it can be properly (re)opened and +# appended to by config.status. When coming back to configure, we +# need to make the FD available again. +if test "$no_create" != yes; then + ac_cs_success=: + ac_config_status_args= + test "$silent" = yes && + ac_config_status_args="$ac_config_status_args --quiet" + exec 5>/dev/null + $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false + exec 5>>config.log + # Use ||, not &&, to avoid exiting from the if with $? = 1, which + # would make configure fail if this is the last instruction. + $ac_cs_success || { (exit 1); exit 1; } +fi + diff --git a/configure.ac b/configure.ac new file mode 100644 index 00000000..c77e4dae --- /dev/null +++ b/configure.ac @@ -0,0 +1,129 @@ +dnl +dnl configure.ac for mkelfImage +dnl +dnl + +dnl ---Required +AC_INIT(Makefile.conf.in) +AC_CONFIG_AUX_DIR(./config) + +dnl -- Compilation platform configuration +AC_CANONICAL_HOST +dnl Currentl AC_CANONICAL_HOST is sufficient for my needs +dnl as there are only a small number of targets that kexec +dnl can support on a given host system. If it stops making +dnl sense compile support for all possible targets a given +dnl host can support AC_CANONICAL_TARGET may help +dnl AC_CANONICAL_TARGET + + +dnl Compute host cpu +case $host_cpu in + i?86 ) + host_cpu="i386" + ;; + powerpc ) + host_cpu="ppc" + ;; + * ) + host_cpu="$host_cpu" + ;; +esac +case $host_cpu in + i386|ppc|x86_64|alpha|ppc64|ia64) + ;; + * ) + AC_MSG_ERROR([ unsupported architecture $host_cpu]) + ;; +esac +ARCH=$host_cpu + +dnl ---Options + +OBJDIR=`pwd`/objdir +if test "${host_alias}" ; then + OBJDIR="$OBJDIR-${host_alias}" +fi +EXTRA_CFLAGS="" +AC_ARG_WITH([objdir], AC_HELP_STRING([--with-objdir=<dir>],[select directory for object files]), + [ OBJDIR="$withval" ], [ OBJDIR="$OBJDIR" ]) + +AC_ARG_WITH([gamecube], AC_HELP_STRING([--with-gamecube],[enable gamecube support]), + [ EXTRA_CFLAGS="$EXTRA_CFLAGS -DCONFIG_GAMECUBE=1" ]) + +AC_ARG_WITH([zlib], AC_HELP_STRING([--without-zlib],[disable gamecube support]), + [ with_zlib="$withval"], [ with_zlib=yes ] ) + +dnl ---Programs +dnl To specify a different compiler, just 'export CC=/path/to/compiler' + +AC_PROG_CC + +if test "${build}" != "${host}" ; then + BUILD_CC=${CC_FOR_BUILD-gcc} +else + BUILD_CC="\$(CC)" +fi + + +dnl Find the compiler tool chain +AC_PROG_CPP +AC_CHECK_TOOL([LD], ld, "no", $PATH) +AC_CHECK_TOOL([AS], as, "no", $PATH) +AC_CHECK_TOOL([OBJCOPY], objcopy, "no", $PATH) +AC_CHECK_TOOL([AR], ar, "", $PATH) + +dnl Find the helper functions +AC_PROG_INSTALL +AC_CHECK_PROG([MKDIR], mkdir, mkdir, "no", [$PATH]) +AC_CHECK_PROG([RM], rm, rm, "no", [$PATH]) +AC_CHECK_PROG([CP], cp, cp, "no", [$PATH]) +AC_CHECK_PROG([LN], ln, ln, "no", [$PATH]) +AC_CHECK_PROG([TAR], tar, tar, "no", [$PATH]) +AC_CHECK_PROG([RPMBUILD], rpmbuild, rpmbuild, "no", [$PATH]) +AC_CHECK_PROG([SED], sed, sed, "no", [$PATH]) +AC_CHECK_PROG([FIND], find, find, "no", [$PATH]) +AC_CHECK_PROG([XARGS], xargs, xargs, "no", [$PATH]) +AC_CHECK_PROG([DIRNAME], dirname, dirname, "no", [$PATH]) + +dnl See if I have a usable copy of zlib available +if test "$with_zlib" = yes ; then + AC_CHECK_HEADER(zlib.h, AC_CHECK_LIB(z, inflateInit_, [AC_DEFINE(HAVE_ZLIB_H, 1) LIBS="$LIBS -lz"])) +fi + +dnl ---Hard codes + +CFLAGS='-Wall -g -fno-strict-aliasing $(CPPFLAGS)' +BUILD_CFLAGS='-O2 -Wall $(CPPFLAGS)' + +dnl ---Sanity checks +if test "$CC" = "no"; then AC_MSG_ERROR([cc not found]) fi +if test "$CPP" = "no"; then AC_MSG_ERROR([cpp not found]) fi +if test "$LD" = "no"; then AC_MSG_ERROR([ld not found]) fi +if test "$AS" = "no"; then AC_MSG_ERROR([as not found]) fi +if test "$OBJCOPY" = "no"; then AC_MSG_ERROR([objcopy not found]) fi +if test "$AR" = "no"; then AC_MSG_ERROR([ar not found]) fi + +if test "$MKDIR" = "no"; then AC_MSG_ERROR([ mkdir not found]) fi +if test "$RM" = "no"; then AC_MSG_ERROR([ rm not found]) fi +if test "$CP" = "no"; then AC_MSG_ERROR([ cp not found]) fi +if test "$LN" = "no"; then AC_MSG_ERROR([ ln not found]) fi +if test "$TAR" = "no"; then AC_MSG_ERROR([ tar not found]) fi +if test "$RPM" = "no"; then AC_MSG_ERROR([ rpm not found]) fi +if test "$SED" = "no"; then AC_MSG_ERROR([ sed not found]) fi +if test "$FIND" = "no"; then AC_MSG_ERROR([ find not found]) fi +if test "$XARGS" = "no"; then AC_MSG_ERROR([ xargs not found]) fi +if test "$DIRNAME" = "no"; then AC_MSG_ERROR([ dirname not found]) fi + +dnl ---Output variables... + +AC_SUBST([BUILD_CC]) +AC_SUBST([BUILD_CFLAGS]) + +AC_SUBST([EXTRA_CFLAGS]) +AC_SUBST([ARCH]) +AC_SUBST([OBJDIR]) +AC_SUBST([INSTALL]) + +dnl ---Output +AC_OUTPUT([Makefile.conf]) diff --git a/doc/linux-i386-boot.txt b/doc/linux-i386-boot.txt new file mode 100644 index 00000000..afa6d129 --- /dev/null +++ b/doc/linux-i386-boot.txt @@ -0,0 +1,438 @@ + THE LINUX/I386 BOOT PROTOCOL + ---------------------------- + + H. Peter Anvin <hpa@zytor.com> + Last update 2002-01-01 + +On the i386 platform, the Linux kernel uses a rather complicated boot +convention. This has evolved partially due to historical aspects, as +well as the desire in the early days to have the kernel itself be a +bootable image, the complicated PC memory model and due to changed +expectations in the PC industry caused by the effective demise of +real-mode DOS as a mainstream operating system. + +Currently, four versions of the Linux/i386 boot protocol exist. + +Old kernels: zImage/Image support only. Some very early kernels + may not even support a command line. + +Protocol 2.00: (Kernel 1.3.73) Added bzImage and initrd support, as + well as a formalized way to communicate between the + boot loader and the kernel. setup.S made relocatable, + although the traditional setup area still assumed + writable. + +Protocol 2.01: (Kernel 1.3.76) Added a heap overrun warning. + +Protocol 2.02: (Kernel 2.4.0-test3-pre3) New command line protocol. + Lower the conventional memory ceiling. No overwrite + of the traditional setup area, thus making booting + safe for systems which use the EBDA from SMM or 32-bit + BIOS entry points. zImage deprecated but still + supported. + +Protocol 2.03: (Kernel 2.4.18-pre1) Explicitly makes the highest possible + initrd address available to the bootloader. + + +**** MEMORY LAYOUT + +The traditional memory map for the kernel loader, used for Image or +zImage kernels, typically looks like: + + | | +0A0000 +------------------------+ + | Reserved for BIOS | Do not use. Reserved for BIOS EBDA. +09A000 +------------------------+ + | Stack/heap/cmdline | For use by the kernel real-mode code. +098000 +------------------------+ + | Kernel setup | The kernel real-mode code. +090200 +------------------------+ + | Kernel boot sector | The kernel legacy boot sector. +090000 +------------------------+ + | Protected-mode kernel | The bulk of the kernel image. +010000 +------------------------+ + | Boot loader | <- Boot sector entry point 0000:7C00 +001000 +------------------------+ + | Reserved for MBR/BIOS | +000800 +------------------------+ + | Typically used by MBR | +000600 +------------------------+ + | BIOS use only | +000000 +------------------------+ + + +When using bzImage, the protected-mode kernel was relocated to +0x100000 ("high memory"), and the kernel real-mode block (boot sector, +setup, and stack/heap) was made relocatable to any address between +0x10000 and end of low memory. Unfortunately, in protocols 2.00 and +2.01 the command line is still required to live in the 0x9XXXX memory +range, and that memory range is still overwritten by the early kernel. +The 2.02 protocol resolves that problem. + +It is desirable to keep the "memory ceiling" -- the highest point in +low memory touched by the boot loader -- as low as possible, since +some newer BIOSes have begun to allocate some rather large amounts of +memory, called the Extended BIOS Data Area, near the top of low +memory. The boot loader should use the "INT 12h" BIOS call to verify +how much low memory is available. + +Unfortunately, if INT 12h reports that the amount of memory is too +low, there is usually nothing the boot loader can do but to report an +error to the user. The boot loader should therefore be designed to +take up as little space in low memory as it reasonably can. For +zImage or old bzImage kernels, which need data written into the +0x90000 segment, the boot loader should make sure not to use memory +above the 0x9A000 point; too many BIOSes will break above that point. + + +**** THE REAL-MODE KERNEL HEADER + +In the following text, and anywhere in the kernel boot sequence, "a +sector" refers to 512 bytes. It is independent of the actual sector +size of the underlying medium. + +The first step in loading a Linux kernel should be to load the +real-mode code (boot sector and setup code) and then examine the +following header at offset 0x01f1. The real-mode code can total up to +32K, although the boot loader may choose to load only the first two +sectors (1K) and then examine the bootup sector size. + +The header looks like: + +Offset Proto Name Meaning +/Size + +01F1/1 ALL setup_sects The size of the setup in sectors +01F2/2 ALL root_flags If set, the root is mounted readonly +01F4/2 ALL syssize DO NOT USE - for bootsect.S use only +01F6/2 ALL swap_dev DO NOT USE - obsolete +01F8/2 ALL ram_size DO NOT USE - for bootsect.S use only +01FA/2 ALL vid_mode Video mode control +01FC/2 ALL root_dev Default root device number +01FE/2 ALL boot_flag 0xAA55 magic number +0200/2 2.00+ jump Jump instruction +0202/4 2.00+ header Magic signature "HdrS" +0206/2 2.00+ version Boot protocol version supported +0208/4 2.00+ realmode_swtch Boot loader hook (see below) +020C/2 2.00+ start_sys The load-low segment (0x1000) (obsolete) +020E/2 2.00+ kernel_version Pointer to kernel version string +0210/1 2.00+ type_of_loader Boot loader identifier +0211/1 2.00+ loadflags Boot protocol option flags +0212/2 2.00+ setup_move_size Move to high memory size (used with hooks) +0214/4 2.00+ code32_start Boot loader hook (see below) +0218/4 2.00+ ramdisk_image initrd load address (set by boot loader) +021C/4 2.00+ ramdisk_size initrd size (set by boot loader) +0220/4 2.00+ bootsect_kludge DO NOT USE - for bootsect.S use only +0224/2 2.01+ heap_end_ptr Free memory after setup end +0226/2 N/A pad1 Unused +0228/4 2.02+ cmd_line_ptr 32-bit pointer to the kernel command line +022C/4 2.03+ initrd_addr_max Highest legal initrd address + +For backwards compatibility, if the setup_sects field contains 0, the +real value is 4. + +If the "HdrS" (0x53726448) magic number is not found at offset 0x202, +the boot protocol version is "old". Loading an old kernel, the +following parameters should be assumed: + + Image type = zImage + initrd not supported + Real-mode kernel must be located at 0x90000. + +Otherwise, the "version" field contains the protocol version, +e.g. protocol version 2.01 will contain 0x0201 in this field. When +setting fields in the header, you must make sure only to set fields +supported by the protocol version in use. + +The "kernel_version" field, if set to a nonzero value, contains a +pointer to a null-terminated human-readable kernel version number +string, less 0x200. This can be used to display the kernel version to +the user. This value should be less than (0x200*setup_sects). For +example, if this value is set to 0x1c00, the kernel version number +string can be found at offset 0x1e00 in the kernel file. This is a +valid value if and only if the "setup_sects" field contains the value +14 or higher. + +Most boot loaders will simply load the kernel at its target address +directly. Such boot loaders do not need to worry about filling in +most of the fields in the header. The following fields should be +filled out, however: + + vid_mode: + Please see the section on SPECIAL COMMAND LINE OPTIONS. + + type_of_loader: + If your boot loader has an assigned id (see table below), enter + 0xTV here, where T is an identifier for the boot loader and V is + a version number. Otherwise, enter 0xFF here. + + Assigned boot loader ids: + 0 LILO + 1 Loadlin + 2 bootsect-loader + 3 SYSLINUX + 4 EtherBoot + + Please contact <hpa@zytor.com> if you need a bootloader ID + value assigned. + + loadflags, heap_end_ptr: + If the protocol version is 2.01 or higher, enter the + offset limit of the setup heap into heap_end_ptr and set the + 0x80 bit (CAN_USE_HEAP) of loadflags. heap_end_ptr appears to + be relative to the start of setup (offset 0x0200). + + setup_move_size: + When using protocol 2.00 or 2.01, if the real mode + kernel is not loaded at 0x90000, it gets moved there later in + the loading sequence. Fill in this field if you want + additional data (such as the kernel command line) moved in + addition to the real-mode kernel itself. + + ramdisk_image, ramdisk_size: + If your boot loader has loaded an initial ramdisk (initrd), + set ramdisk_image to the 32-bit pointer to the ramdisk data + and the ramdisk_size to the size of the ramdisk data. + + The initrd should typically be located as high in memory as + possible, as it may otherwise get overwritten by the early + kernel initialization sequence. However, it must never be + located above the address specified in the initrd_addr_max + field. The initrd should be at least 4K page aligned. + + cmd_line_ptr: + If the protocol version is 2.02 or higher, this is a 32-bit + pointer to the kernel command line. The kernel command line + can be located anywhere between the end of setup and 0xA0000. + Fill in this field even if your boot loader does not support a + command line, in which case you can point this to an empty + string (or better yet, to the string "auto".) If this field + is left at zero, the kernel will assume that your boot loader + does not support the 2.02+ protocol. + + ramdisk_max: + The maximum address that may be occupied by the initrd + contents. For boot protocols 2.02 or earlier, this field is + not present, and the maximum address is 0x37FFFFFF. (This + address is defined as the address of the highest safe byte, so + if your ramdisk is exactly 131072 bytes long and this field is + 0x37FFFFFF, you can start your ramdisk at 0x37FE0000.) + + +**** THE KERNEL COMMAND LINE + +The kernel command line has become an important way for the boot +loader to communicate with the kernel. Some of its options are also +relevant to the boot loader itself, see "special command line options" +below. + +The kernel command line is a null-terminated string up to 255 +characters long, plus the final null. + +If the boot protocol version is 2.02 or later, the address of the +kernel command line is given by the header field cmd_line_ptr (see +above.) + +If the protocol version is *not* 2.02 or higher, the kernel +command line is entered using the following protocol: + + At offset 0x0020 (word), "cmd_line_magic", enter the magic + number 0xA33F. + + At offset 0x0022 (word), "cmd_line_offset", enter the offset + of the kernel command line (relative to the start of the + real-mode kernel). + + The kernel command line *must* be within the memory region + covered by setup_move_size, so you may need to adjust this + field. + + +**** SAMPLE BOOT CONFIGURATION + +As a sample configuration, assume the following layout of the real +mode segment: + + 0x0000-0x7FFF Real mode kernel + 0x8000-0x8FFF Stack and heap + 0x9000-0x90FF Kernel command line + +Such a boot loader should enter the following fields in the header: + + unsigned long base_ptr; /* base address for real-mode segment */ + + if ( setup_sects == 0 ) { + setup_sects = 4; + } + + if ( protocol >= 0x0200 ) { + type_of_loader = <type code>; + if ( loading_initrd ) { + ramdisk_image = <initrd_address>; + ramdisk_size = <initrd_size>; + } + if ( protocol >= 0x0201 ) { + heap_end_ptr = 0x9000 - 0x200; + loadflags |= 0x80; /* CAN_USE_HEAP */ + } + if ( protocol >= 0x0202 ) { + cmd_line_ptr = base_ptr + 0x9000; + } else { + cmd_line_magic = 0xA33F; + cmd_line_offset = 0x9000; + setup_move_size = 0x9100; + } + } else { + /* Very old kernel */ + + cmd_line_magic = 0xA33F; + cmd_line_offset = 0x9000; + + /* A very old kernel MUST have its real-mode code + loaded at 0x90000 */ + + if ( base_ptr != 0x90000 ) { + /* Copy the real-mode kernel */ + memcpy(0x90000, base_ptr, (setup_sects+1)*512); + /* Copy the command line */ + memcpy(0x99000, base_ptr+0x9000, 256); + + base_ptr = 0x90000; /* Relocated */ + } + + /* It is recommended to clear memory up to the 32K mark */ + memset(0x90000 + (setup_sects+1)*512, 0, + (64-(setup_sects+1))*512); + } + + +**** LOADING THE REST OF THE KERNEL + +The non-real-mode kernel starts at offset (setup_sects+1)*512 in the +kernel file (again, if setup_sects == 0 the real value is 4.) It +should be loaded at address 0x10000 for Image/zImage kernels and +0x100000 for bzImage kernels. + +The kernel is a bzImage kernel if the protocol >= 2.00 and the 0x01 +bit (LOAD_HIGH) in the loadflags field is set: + + is_bzImage = (protocol >= 0x0200) && (loadflags & 0x01); + load_address = is_bzImage ? 0x100000 : 0x10000; + +Note that Image/zImage kernels can be up to 512K in size, and thus use +the entire 0x10000-0x90000 range of memory. This means it is pretty +much a requirement for these kernels to load the real-mode part at +0x90000. bzImage kernels allow much more flexibility. + + +**** SPECIAL COMMAND LINE OPTIONS + +If the command line provided by the boot loader is entered by the +user, the user may expect the following command line options to work. +They should normally not be deleted from the kernel command line even +though not all of them are actually meaningful to the kernel. Boot +loader authors who need additional command line options for the boot +loader itself should get them registered in +Documentation/kernel-parameters.txt to make sure they will not +conflict with actual kernel options now or in the future. + + vga=<mode> + <mode> here is either an integer (in C notation, either + decimal, octal, or hexadecimal) or one of the strings + "normal" (meaning 0xFFFF), "ext" (meaning 0xFFFE) or "ask" + (meaning 0xFFFD). This value should be entered into the + vid_mode field, as it is used by the kernel before the command + line is parsed. + + mem=<size> + <size> is an integer in C notation optionally followed by K, M + or G (meaning << 10, << 20 or << 30). This specifies the end + of memory to the kernel. This affects the possible placement + of an initrd, since an initrd should be placed near end of + memory. Note that this is an option to *both* the kernel and + the bootloader! + + initrd=<file> + An initrd should be loaded. The meaning of <file> is + obviously bootloader-dependent, and some boot loaders + (e.g. LILO) do not have such a command. + +In addition, some boot loaders add the following options to the +user-specified command line: + + BOOT_IMAGE=<file> + The boot image which was loaded. Again, the meaning of <file> + is obviously bootloader-dependent. + + auto + The kernel was booted without explicit user intervention. + +If these options are added by the boot loader, it is highly +recommended that they are located *first*, before the user-specified +or configuration-specified command line. Otherwise, "init=/bin/sh" +gets confused by the "auto" option. + + +**** RUNNING THE KERNEL + +The kernel is started by jumping to the kernel entry point, which is +located at *segment* offset 0x20 from the start of the real mode +kernel. This means that if you loaded your real-mode kernel code at +0x90000, the kernel entry point is 9020:0000. + +At entry, ds = es = ss should point to the start of the real-mode +kernel code (0x9000 if the code is loaded at 0x90000), sp should be +set up properly, normally pointing to the top of the heap, and +interrupts should be disabled. Furthermore, to guard against bugs in +the kernel, it is recommended that the boot loader sets fs = gs = ds = +es = ss. + +In our example from above, we would do: + + /* Note: in the case of the "old" kernel protocol, base_ptr must + be == 0x90000 at this point; see the previous sample code */ + + seg = base_ptr >> 4; + + cli(); /* Enter with interrupts disabled! */ + + /* Set up the real-mode kernel stack */ + _SS = seg; + _SP = 0x9000; /* Load SP immediately after loading SS! */ + + _DS = _ES = _FS = _GS = seg; + jmp_far(seg+0x20, 0); /* Run the kernel */ + +If your boot sector accesses a floppy drive, it is recommended to +switch off the floppy motor before running the kernel, since the +kernel boot leaves interrupts off and thus the motor will not be +switched off, especially if the loaded kernel has the floppy driver as +a demand-loaded module! + + +**** ADVANCED BOOT TIME HOOKS + +If the boot loader runs in a particularly hostile environment (such as +LOADLIN, which runs under DOS) it may be impossible to follow the +standard memory location requirements. Such a boot loader may use the +following hooks that, if set, are invoked by the kernel at the +appropriate time. The use of these hooks should probably be +considered an absolutely last resort! + +IMPORTANT: All the hooks are required to preserve %esp, %ebp, %esi and +%edi across invocation. + + realmode_swtch: + A 16-bit real mode far subroutine invoked immediately before + entering protected mode. The default routine disables NMI, so + your routine should probably do so, too. + + code32_start: + A 32-bit flat-mode routine *jumped* to immediately after the + transition to protected mode, but before the kernel is + uncompressed. No segments, except CS, are set up; you should + set them up to KERNEL_DS (0x18) yourself. + + After completing your hook, you should jump to the address + that was in this field before your boot loader overwrote it. diff --git a/doc/linux-i386-zero-page.txt b/doc/linux-i386-zero-page.txt new file mode 100644 index 00000000..bbdf7261 --- /dev/null +++ b/doc/linux-i386-zero-page.txt @@ -0,0 +1,79 @@ +Summary of boot_params layout (kernel point of view) + ( collected by Hans Lermen and Martin Mares ) + +The contents of boot_params are used to pass parameters from the +16-bit realmode code of the kernel to the 32-bit part. References/settings +to it mainly are in: + + arch/i386/boot/setup.S + arch/i386/boot/video.S + arch/i386/kernel/head.S + arch/i386/kernel/setup.c + + +Offset Type Description +------ ---- ----------- + 0 32 bytes struct screen_info, SCREEN_INFO + ATTENTION, overlaps the following !!! + 2 unsigned short EXT_MEM_K, extended memory size in Kb (from int 0x15) + 0x20 unsigned short CL_MAGIC, commandline magic number (=0xA33F) + 0x22 unsigned short CL_OFFSET, commandline offset + Address of commandline is calculated: + 0x90000 + contents of CL_OFFSET + (only taken, when CL_MAGIC = 0xA33F) + 0x40 20 bytes struct apm_bios_info, APM_BIOS_INFO + 0x60 16 bytes Intel SpeedStep (IST) BIOS support information + 0x80 16 bytes hd0-disk-parameter from intvector 0x41 + 0x90 16 bytes hd1-disk-parameter from intvector 0x46 + + 0xa0 16 bytes System description table truncated to 16 bytes. + ( struct sys_desc_table_struct ) + 0xb0 - 0x1c3 Free. Add more parameters here if you really need them. + +0x1c4 unsigned long EFI system table pointer +0x1c8 unsigned long EFI memory descriptor size +0x1cc unsigned long EFI memory descriptor version +0x1d0 unsigned long EFI memory descriptor map pointer +0x1d4 unsigned long EFI memory descriptor map size +0x1e0 unsigned long ALT_MEM_K, alternative mem check, in Kb +0x1e8 char number of entries in E820MAP (below) +0x1e9 unsigned char number of entries in EDDBUF (below) +0x1ea unsigned char number of entries in EDD_MBR_SIG_BUFFER (below) +0x1f1 char size of setup.S, number of sectors +0x1f2 unsigned short MOUNT_ROOT_RDONLY (if !=0) +0x1f4 unsigned short size of compressed kernel-part in the + (b)zImage-file (in 16 byte units, rounded up) +0x1f6 unsigned short swap_dev (unused AFAIK) +0x1f8 unsigned short RAMDISK_FLAGS +0x1fa unsigned short VGA-Mode (old one) +0x1fc unsigned short ORIG_ROOT_DEV (high=Major, low=minor) +0x1ff char AUX_DEVICE_INFO + +0x200 short jump to start of setup code aka "reserved" field. +0x202 4 bytes Signature for SETUP-header, ="HdrS" +0x206 unsigned short Version number of header format + Current version is 0x0201... +0x208 8 bytes (used by setup.S for communication with boot loaders, + look there) +0x210 char LOADER_TYPE, = 0, old one + else it is set by the loader: + 0xTV: T=0 for LILO + 1 for Loadlin + 2 for bootsect-loader + 3 for SYSLINUX + 4 for ETHERBOOT + V = version +0x211 char loadflags: + bit0 = 1: kernel is loaded high (bzImage) + bit7 = 1: Heap and pointer (see below) set by boot + loader. +0x212 unsigned short (setup.S) +0x214 unsigned long KERNEL_START, where the loader started the kernel +0x218 unsigned long INITRD_START, address of loaded ramdisk image +0x21c unsigned long INITRD_SIZE, size in bytes of ramdisk image +0x220 4 bytes (setup.S) +0x224 unsigned short setup.S heap end pointer +0x290 - 0x2cf EDD_MBR_SIG_BUFFER (edd.S) +0x2d0 - 0x600 E820MAP +0x600 - 0x7ff EDDBUF (edd.S) for disk signature read sector +0x600 - 0x7eb EDDBUF (edd.S) for edd data diff --git a/doc/multiboot.html b/doc/multiboot.html new file mode 100644 index 00000000..bd414447 --- /dev/null +++ b/doc/multiboot.html @@ -0,0 +1,664 @@ +<HTML> + +<HEAD> +<TITLE>Multiboot Standard</TITLE> +</HEAD> + +<BODY> + +<CENTER><H1>Multiboot Standard</H1></CENTER> +<CENTER><H3>Version 0.6</H3></CENTER> + +<HR> + +<H2>Contents</H2> + +<UL> +<LI> <A HREF="#motivation">Motivation</A> +<LI> <A HREF="#terminology">Terminology</A> +<LI> <A HREF="#scope">Scope and Requirements</A> +<LI> <A HREF="#details">Details</A> +<LI> <A HREF="#author">Authors</A> +<LI> <B>NOTE: The following items are not part of the standards document, +but are included for prospective OS and bootloader writers.</B> +<LI> <A HREF="#notes">Notes on PCs</A> +<LI> <A HREF="#example_os">Example OS Code</A> +<LI> <A HREF="#example_boot">Example Bootloader Code</A> +</UL> + +<HR> + +<H2><A NAME="motivation">Motivation</A></H2> + +Every OS ever created tends to have its own boot loader. Installing a new +OS on a machine generally involves installing a whole new set of boot +mechanisms, each with completely different install-time and boot-time user +interfaces. Getting multiple operating systems to coexist reliably on one +machine through typical "chaining" mechanisms can be a nightmare. There is +little or no choice of boot loaders for a particular operating system - if +the one that comes with the OS doesn't do exactly what you want, or doesn't +work on your machine, you're screwed.<P> + +While we may not be able to fix this problem in existing commercial +operating systems, it shouldn't be too difficult for a few people in the +free OS communities to put their heads together and solve this problem for +the popular free operating systems. That's what this standard aims for. +Basically, it specifies an interface between a boot loader and a operating +system, such that any complying boot loader should be able to load any +complying operating system. This standard does NOT specify how boot +loaders should work - only how they must interface with the OS being +loaded.<P> + +<HR> + +<H2><A NAME="terminology">Terminology</A></H2> + +Throughout this document, the term "boot loader" means whatever program or +set of programs loads the image of the final operating system to be run on +the machine. The boot loader may itself consist of several stages, but +that is an implementation detail not relevant to this standard. Only the +"final" stage of the boot loader - the stage that eventually transfers +control to the OS - needs to follow the rules specified in this document +in order to be "MultiBoot compliant"; earlier boot loader stages can be +designed in whatever way is most convenient.<P> + +The term "OS image" is used to refer to the initial binary image that the +boot loader loads into memory and transfers control to to start the OS. +The OS image is typically an executable containing the OS kernel.<P> + +The term "boot module" refers to other auxiliary files that the boot loader +loads into memory along with the OS image, but does not interpret in any +way other than passing their locations to the OS when it is invoked.<P> + +<HR> + +<H2><A NAME="scope">Scope and Requirements</A></H2> + +<H3>Architectures</H3> + +This standard is primarily targetted at PC's, since they are the most +common and have the largest variety of OS's and boot loaders. However, to +the extent that certain other architectures may need a boot standard and do +not have one already, a variation of this standard, stripped of the +x86-specific details, could be adopted for them as well.<P> + +<H3>Operating systems</H3> + +This standard is targetted toward free 32-bit operating systems that can be +fairly easily modified to support the standard without going through lots of +bureaucratic rigmarole. The particular free OS's that this standard is +being primarily designed for are Linux, FreeBSD, NetBSD, Mach, and VSTa. +It is hoped that other emerging free OS's will adopt it from the start, and +thus immediately be able to take advantage of existing boot loaders. It +would be nice if commercial operating system vendors eventually adopted +this standard as well, but that's probably a pipe dream.<P> + +<H3>Boot sources</H3> + +It should be possible to write compliant boot loaders that +load the OS image from a variety of sources, including floppy disk, hard +disk, and across a network.<P> + +Disk-based boot loaders may use a variety of techniques to find the +relevant OS image and boot module data on disk, such as by interpretation +of specific file systems (e.g. the BSD/Mach boot loader), using +precalculated "block lists" (e.g. LILO), loading from a special "boot +partition" (e.g. OS/2), or even loading from within another operating +system (e.g. the VSTa boot code, which loads from DOS). Similarly, +network-based boot loaders could use a variety of network hardware and +protocols.<P> + +It is hoped that boot loaders will be created that support multiple loading +mechanisms, increasing their portability, robustness, and +user-friendliness.<P> + +<H3>Boot-time configuration</H3> + +It is often necessary for one reason or another for the user to be able to +provide some configuration information to the OS dynamically at boot time. +While this standard should not dictate how this configuration information +is obtained by the boot loader, it should provide a standard means for the +boot loader to pass such information to the OS.<P> + +<H3>Convenience to the OS</H3> + +OS images should be easy to generate. Ideally, an OS image should simply +be an ordinary 32-bit executable file in whatever file format the OS +normally uses. It should be possible to 'nm' or disassemble OS images just +like normal executables. Specialized tools should not be needed to create +OS images in a "special" file format. If this means shifting some work +from the OS to the boot loader, that is probably appropriate, because all +the memory consumed by the boot loader will typically be made available +again after the boot process is created, whereas every bit of code in the +OS image typically has to remain in memory forever. The OS should not have +to worry about getting into 32-bit mode initially, because mode switching +code generally needs to be in the boot loader anyway in order to load OS +data above the 1MB boundary, and forcing the OS to do this makes creation +of OS images much more difficult.<P> + +Unfortunately, there is a horrendous variety of executable file formats +even among free Unix-like PC-based OS's - generally a different format for +each OS. Most of the relevant free OS's use some variant of a.out format, +but some are moving to ELF. It is highly desirable for boot loaders not to +have to be able to interpret all the different types of executable file +formats in existence in order to load the OS image - otherwise the boot +loader effectively becomes OS-specific again.<P> + +This standard adopts a compromise solution to this problem. +MultiBoot compliant boot images always either (a) are in ELF format, or (b) +contain a "magic MultiBoot header", described below, which allows the boot +loader to load the image without having to understand numerous a.out +variants or other executable formats. This magic header does not need +to be at the very beginning of the executable file, so kernel images can +still conform to the local a.out format variant in addition to being +MultiBoot compliant.<P> + +<H3>Boot modules</H3> + +Many modern operating system kernels, such as those of VSTa and Mach, do +not by themselves contain enough mechanism to get the system fully +operational: they require the presence of additional software modules at +boot time in order to access devices, mount file systems, etc. While these +additional modules could be embedded in the main OS image along with the +kernel itself, and the resulting image be split apart manually by the OS +when it receives control, it is often more flexible, more space-efficient, +and more convenient to the OS and user if the boot loader can load these +additional modules independently in the first place.<P> + +Thus, this standard should provide a standard method for a boot loader to +indicate to the OS what auxiliary boot modules were loaded, and where they +can be found. Boot loaders don't have to support multiple boot modules, +but they are strongly encouraged to, because some OS's will be unable to +boot without them.<P> + +<HR> + +<H2><A NAME="details">Details</H2> + +There are three main aspects of the boot-loader/OS image interface this +standard must specify:<P> + +<UL> +<LI>The format of the OS image as seen by the boot loader. +<LI>The state of the machine when the boot loader starts the OS. +<LI>The format of the information passed by the boot loader to the OS. +</UL> + +<H3>OS Image Format</H3> + +An OS image is generally just an ordinary 32-bit executable file in the +standard format for that particular OS, except that it may be linked at a +non-default load address to avoid loading on top of the PC's I/O region +or other reserved areas, and of course it can't use shared libraries or +other fancy features. Initially, only images in a.out format are +supported; ELF support will probably later be specified in the standard.<P> + +Unfortunately, the exact meaning of the text, data, bss, and entry fields +of a.out headers tends to vary widely between different executable flavors, +and it is sometimes very difficult to distinguish one flavor from another +(e.g. Linux ZMAGIC executables and Mach ZMAGIC executables). Furthermore, +there is no simple, reliable way of determining at what address in memory +the text segment is supposed to start. Therefore, this standard requires +that an additional header, known as a 'multiboot_header', appear somewhere +near the beginning of the executable file. In general it should come "as +early as possible", and is typically embedded in the beginning of the text +segment after the "real" executable header. It _must_ be contained +completely within the first 8192 bytes of the executable file, and must be +longword (32-bit) aligned. These rules allow the boot loader to find and +synchronize with the text segment in the a.out file without knowing +beforehand the details of the a.out variant. The layout of the header is +as follows:<P> + +<pre> + +-------------------+ +0 | magic: 0x1BADB002 | (required) +4 | flags | (required) +8 | checksum | (required) + +-------------------+ +8 | header_addr | (present if flags[16] is set) +12 | load_addr | (present if flags[16] is set) +16 | load_end_addr | (present if flags[16] is set) +20 | bss_end_addr | (present if flags[16] is set) +24 | entry_addr | (present if flags[16] is set) + +-------------------+ +</pre> + +All fields are in little-endian byte order, of course. The first field is +the magic number identifying the header, which must be the hex value +0x1BADB002.<P> + +The flags field specifies features that the OS image requests or requires +of the boot loader. Bits 0-15 indicate requirements; if the boot loader +sees any of these bits set but doesn't understand the flag or can't fulfill +the requirements it indicates for some reason, it must notify the user and +fail to load the OS image. Bits 16-31 indicate optional features; if any +bits in this range are set but the boot loader doesn't understand them, it +can simply ignore them and proceed as usual. Naturally, all +as-yet-undefined bits in the flags word must be set to zero in OS +images. This way, the flags fields serves for version control as well as +simple feature selection.<P> + +If bit 0 in the flags word is set, then all boot modules loaded along with +the OS must be aligned on page (4KB) boundaries. Some OS's expect to be +able to map the pages containing boot modules directly into a paged address +space during startup, and thus need the boot modules to be page-aligned.<P> + +If bit 1 in the flags word is set, then information on available memory +via at least the 'mem_*' fields of the multiboot_info structure defined +below must be included. If the bootloader is capable of passing a memory +map (the 'mmap_*' fields) and one exists, then it must be included as +well.<P> + +If bit 16 in the flags word is set, then the fields at offsets 8-24 in the +multiboot_header are valid, and the boot loader should use them instead of +the fields in the actual executable header to calculate where to load the +OS image. This information does not need to be provided if the kernel +image is in ELF format, but it should be provided if the images is in a.out +format or in some other format. Compliant boot loaders must be able to +load images that either are in ELF format or contain the load address +information embedded in the multiboot_header; they may also directly +support other executable formats, such as particular a.out variants, but +are not required to.<P> + +All of the address fields enabled by flag bit 16 are physical addresses. +The meaning of each is as follows:<P> + +<UL> +<LI><B>header_addr</B> -- Contains the address corresponding to the +beginning of the multiboot_header - the physical memory location at which +the magic value is supposed to be loaded. This field serves to "synchronize" +the mapping between OS image offsets and physical memory addresses. +<LI><B>load_addr</B> -- Contains the physical address of the beginning +of the text segment. The offset in the OS image file at which to start +loading is defined by the offset at which the header was found, minus +(header_addr - load_addr). load_addr must be less than or equal to +header_addr. +<LI><B>load_end_addr</B> -- Contains the physical address of the end of the +data segment. (load_end_addr - load_addr) specifies how much data to load. +This implies that the text and data segments must be consecutive in the +OS image; this is true for existing a.out executable formats. +<LI><B>bss_end_addr</B> -- Contains the physical address of the end of +the bss segment. The boot loader initializes this area to zero, and +reserves the memory it occupies to avoid placing boot modules and other +data relevant to the OS in that area. +<LI><B>entry</B> -- The physical address to which the boot loader should +jump in order to start running the OS. +</UL> + +The checksum is a 32-bit unsigned value which, when added to +the other required fields, must have a 32-bit unsigned sum of zero.<P> + +<H3>Machine State</H3> + +When the boot loader invokes the 32-bit operating system, +the machine must have the following state:<P> + +<UL> +<LI>CS must be a 32-bit read/execute code segment with an offset of 0 +and a limit of 0xffffffff. +<LI>DS, ES, FS, GS, and SS must be a 32-bit read/write data segment with +an offset of 0 and a limit of 0xffffffff. +<LI>The address 20 line must be usable for standard linear 32-bit +addressing of memory (in standard PC hardware, it is wired to +0 at bootup, forcing addresses in the 1-2 MB range to be mapped to the +0-1 MB range, 3-4 is mapped to 2-3, etc.). +<LI>Paging must be turned off. +<LI>The processor interrupt flag must be turned off. +<LI>EAX must contain the magic value 0x2BADB002; the presence of this value +indicates to the OS that it was loaded by a MultiBoot-compliant boot +loader (e.g. as opposed to another type of boot loader that the OS can +also be loaded from). +<LI>EBX must contain the 32-bit physical address of the multiboot_info +structure provided by the boot loader (see below). +</UL> + +All other processor registers and flag bits are undefined. This includes, +in particular:<P> + +<UL> +<LI>ESP: the 32-bit OS must create its own stack as soon as it needs one. +<LI>GDTR: Even though the segment registers are set up as described above, +the GDTR may be invalid, so the OS must not load any segment registers +(even just reloading the same values!) until it sets up its own GDT. +<LI>IDTR: The OS must leave interrupts disabled until it sets up its own IDT. +</UL> + +However, other machine state should be left by the boot loader in "normal +working order", i.e. as initialized by the BIOS (or DOS, if that's what +the boot loader runs from). In other words, the OS should be able to make +BIOS calls and such after being loaded, as long as it does not overwrite +the BIOS data structures before doing so. Also, the boot loader must leave +the PIC programmed with the normal BIOS/DOS values, even if it changed them +during the switch to 32-bit mode.<P> + +<H3>Boot Information Format</H3> + +Upon entry to the OS, the EBX register contains the physical address of +a 'multiboot_info' data structure, through which the boot loader +communicates vital information to the OS. The OS can use or ignore any +parts of the structure as it chooses; all information passed by the boot +loader is advisory only.<P> + +The multiboot_info structure and its related substructures may be placed +anywhere in memory by the boot loader (with the exception of the memory +reserved for the kernel and boot modules, of course). It is the OS's +responsibility to avoid overwriting this memory until it is done using it.<P> + +The format of the multiboot_info structure (as defined so far) follows:<P> + +<pre> + +-------------------+ +0 | flags | (required) + +-------------------+ +4 | mem_lower | (present if flags[0] is set) +8 | mem_upper | (present if flags[0] is set) + +-------------------+ +12 | boot_device | (present if flags[1] is set) + +-------------------+ +16 | cmdline | (present if flags[2] is set) + +-------------------+ +20 | mods_count | (present if flags[3] is set) +24 | mods_addr | (present if flags[3] is set) + +-------------------+ +28 - 40 | syms | (present if flags[4] or flags[5] is set) + +-------------------+ +44 | mmap_length | (present if flags[6] is set) +48 | mmap_addr | (present if flags[6] is set) + +-------------------+ +</pre> + +The first longword indicates the presence and validity of other fields in +the multiboot_info structure. All as-yet-undefined bits must be set to +zero by the boot loader. Any set bits that the OS does not understand +should be ignored. Thus, the flags field also functions as a version +indicator, allowing the multiboot_info structure to be expanded in the +future without breaking anything.<P> + +If bit 0 in the multiboot_info.flags word is set, then the 'mem_*' fields +are valid. 'mem_lower' and 'mem_upper' indicate the amount of lower and upper +memory, respectively, in kilobytes. Lower memory starts at address 0, and +upper memory starts at address 1 megabyte. The maximum possible +value for lower memory is 640 kilobytes. The value returned for upper +memory is maximally the address of the first upper memory hole minus +1 megabyte. It is not guaranteed to be this value.<P> + +If bit 1 in the multiboot_info.flags word is set, then the 'boot_device' +field is valid, and indicates which BIOS disk device the boot loader loaded +the OS from. If the OS was not loaded from a BIOS disk, then this field +must not be present (bit 3 must be clear). The OS may use this field as a +hint for determining its own "root" device, but is not required to. The +boot_device field is layed out in four one-byte subfields as follows:<P> + +<pre> + +-------+-------+-------+-------+ + | drive | part1 | part2 | part3 | + +-------+-------+-------+-------+ +</pre> + +The first byte contains the BIOS drive number as understood by the BIOS +INT 0x13 low-level disk interface: e.g. 0x00 for the first floppy disk or +0x80 for the first hard disk.<P> + +The three remaining bytes specify the boot partition. 'part1' specifies +the "top-level" partition number, 'part2' specifies a "sub-partition" in +the top-level partition, etc. Partition numbers always start from zero. +Unused partition bytes must be set to 0xFF. For example, if the disk is +partitioned using a simple one-level DOS partitioning scheme, then 'part1' +contains the DOS partition number, and 'part2' and 'part3' are both zero. +As another example, if a disk is partitioned first into DOS partitions, and +then one of those DOS partitions is subdivided into several BSD partitions +using BSD's "disklabel" strategy, then 'part1' contains the DOS partition +number, 'part2' contains the BSD sub-partition within that DOS partition, +and 'part3' is 0xFF.<P> + +DOS extended partitions are indicated as partition numbers starting from 4 +and increasing, rather than as nested sub-partitions, even though the +underlying disk layout of extended partitions is hierarchical in nature. +For example, if the boot loader boots from the second extended partition +on a disk partitioned in conventional DOS style, then 'part1' will be 5, +and 'part2' and 'part3' will both be 0xFF.<P> + +If bit 2 of the flags longword is set, the 'cmdline' field is valid, and +contains the physical address of the the command line to be passed to the +kernel. The command line is a normal C-style null-terminated string.<P> + +If bit 3 of the flags is set, then the 'mods' fields indicate to the kernel +what boot modules were loaded along with the kernel image, and where they +can be found. 'mods_count' contains the number of modules loaded; +'mods_addr' contains the physical address of the first module structure. +'mods_count' may be zero, indicating no boot modules were loaded, even if +bit 1 of 'flags' is set. Each module structure is formatted as follows:<P> + +<pre> + +-------------------+ +0 | mod_start | +4 | mod_end | + +-------------------+ +8 | string | + +-------------------+ +12 | reserved (0) | + +-------------------+ +</pre> + +The first two fields contain the start and end addresses of the boot module +itself. The 'string' field provides an arbitrary string to be associated +with that particular boot module; it is a null-terminated ASCII string, +just like the kernel command line. The 'string' field may be 0 if there is +no string associated with the module. Typically the string might be a +command line (e.g. if the OS treats boot modules as executable programs), +or a pathname (e.g. if the OS treats boot modules as files in a file +system), but its exact use is specific to the OS. The 'reserved' field +must be set to 0 by the boot loader and ignored by the OS.<P> + +NOTE: Bits 4 & 5 are mutually exclusive.<P> + +If bit 4 in the multiboot_info.flags word is set, then the following +fields in the multiboot_info structure starting at byte 28 are valid:<P> + +<pre> + +-------------------+ +28 | tabsize | +32 | strsize | +36 | addr | +40 | reserved (0) | + +-------------------+ +</pre> + +These indicate where the symbol table from an a.out kernel image can be +found. 'addr' is the physical address of the size (4-byte unsigned +long) of an array of a.out-format 'nlist' structures, followed immediately +by the array itself, then the size (4-byte unsigned long) of a set of +null-terminated ASCII strings (plus sizeof(unsigned long) in this case), +and finally the set of strings itself. 'tabsize' is equal to it's size +parameter (found at the beginning of the symbol section), and 'strsize' +is equal to it's size parameter (found at the beginning of the string section) +of the following string table to which the symbol table refers. Note that +'tabsize' may be 0, indicating no symbols, even if bit 4 in the flags +word is set.<P> + +If bit 5 in the multiboot_info.flags word is set, then the following +fields in the multiboot_info structure starting at byte 28 are valid:<P> + +<pre> + +-------------------+ +28 | num | +32 | size | +36 | addr | +40 | shndx | + +-------------------+ +</pre> + +These indicate where the section header table from an ELF kernel is, the +size of each entry, number of entries, and the string table used as the +index of names. They correspond to the 'shdr_*' entries ('shdr_num', etc.) +in the Executable and Linkable Format (ELF) specification in the program +header. All sections are loaded, and the physical address fields +of the elf section header then refer to where the sections are in memory +(refer to the i386 ELF documentation for details as to how to read the +section header(s)). Note that 'shdr_num' may be 0, indicating no symbols, +even if bit 5 in the flags word is set.<P> + +If bit 6 in the multiboot_info.flags word is set, then the 'mmap_*' fields +are valid, and indicate the address and length of a buffer containing a +memory map of the machine provided by the BIOS. 'mmap_addr' is the address, +and 'mmap_length' is the total size of the buffer. The buffer consists of +one or more of the following size/structure pairs ('size' is really used +for skipping to the next pair):<P> + +<pre> + +-------------------+ +-4 | size | + +-------------------+ +0 | BaseAddrLow | +4 | BaseAddrHigh | +8 | LengthLow | +12 | LengthHigh | +16 | Type | + +-------------------+ +</pre> + +where 'size' is the size of the associated structure in bytes, which can +be greater than the minimum of 20 bytes. 'BaseAddrLow' is the lower 32 +bits of the starting address, and 'BaseAddrHigh' is the upper 32 bits, +for a total of a 64-bit starting address. 'LengthLow' is the lower 32 bits +of the size of the memory region in bytes, and 'LengthHigh' is the upper 32 +bits, for a total of a 64-bit length. 'Type' is the variety of address +range represented, where a value of 1 indicates available RAM, and all +other values currently indicated a reserved area.<P> + +The map provided is guaranteed to list all standard RAM that should +be available for normal use.<P> + +<HR> + +<H2><A NAME="author">Authors</A></H2> + +<pre> +Bryan Ford +Computer Systems Laboratory +University of Utah +Salt Lake City, UT 84112 +(801) 581-4280 +baford@cs.utah.edu + +Erich Stefan Boleyn +924 S.W. 16th Ave, #202 +Portland, OR, USA 97205 +(503) 226-0741 +erich@uruk.org +</pre> + +We would also like to thank the many other people have provided comments, +ideas, information, and other forms of support for our work.<P> + +<H3>Revision History</H3> + +<pre> +Version 0.6 3/29/96 (a few wording changes, header checksum, and + clarification of machine state passed to the OS) +Version 0.5 2/23/96 (name change) +Version 0.4 2/1/96 (major changes plus HTMLification) +Version 0.3 12/23/95 +Version 0.2 10/22/95 +Version 0.1 6/26/95 +</pre> + +<HR> + +<H2><A NAME="notes">Notes on PCs</A></H2> + +In reference to bit 0 of the multiboot_info.flags parameter, +if the bootloader +in question uses older BIOS interfaces, or the newest ones are not +available (see description about bit 6), then a maximum of either +15 or 63 megabytes of memory may be reported. It is HIGHLY recommended +that bootloaders perform a thorough memory probe.<P> + +In reference to bit 1 of the multiboot_info.flags parameter, it is +recognized that determination of which BIOS drive maps to which +OS-level device-driver is non-trivial, at best. Many kludges have +been made to various OSes instead of solving this problem, most of +them breaking under many conditions. To encourage the use of +general-purpose solutions to this problem, here are 2 +<A HREF=bios_mapping.txt>BIOS Device Mapping Techniques</A>.<P> + +In reference to bit 6 of the multiboot_info.flags parameter, it is +important to note that the data structure used there +(starting with 'BaseAddrLow') is the data returned by the +<A HREF=mem64mb.html>INT 15h, AX=E820h +- Query System Address Map</A> call. More information +on reserved memory regions is defined on that web page. +The interface here is meant to allow a bootloader to +work unmodified with any reasonable extensions of the BIOS interface, +passing along any extra data to be interpreted by the OS as desired.<P> + +<HR> + +<H2><A NAME="example_os">Example OS Code</A> (from Bryan Ford)</H2> + +EDITOR'S NOTE: These examples are relevant to the Proposal version 0.5, +which is basically identical except for the multiboot OS header, which was +missing the checksum. A patch to bring Mach4 UK22 up to version 0.6 is +available in the GRUB FTP area mentioned in the +<A HREF="#example_boot">Example Bootloader Code</A> section below.<P> + +The Mach 4 distribution, available by anonymous FTP from +flux.cs.utah.edu:/flux, contains a C header file that defines the +MultiBoot data structures described above; anyone is welcome to rip it +out and use it for other boot loaders and OS's:<P> + +<pre> + mach4-i386/include/mach/machine/multiboot.h +</pre> + +This distribution also contains code implementing a "Linux boot adaptor", +which collects a MultiBoot-compliant OS image and an optional set of boot +modules, compresses them, and packages them into a single traditional Linux +boot image that can be loaded from LILO or other Linux boot loaders. There +is also a corresponding "BSD boot adaptor" which can be used to wrap a +MultiBoot kernel and set of modules and produce an image that can be loaded +from the FreeBSD and NetBSD boot loaders. All of this code can be used as-is +or as a basis for other boot loaders. These are the directories of primary +relevance:<P> + +<pre> + mach4-i386/boot + mach4-i386/boot/bsd + mach4-i386/boot/linux +</pre> + +The Mach kernel itself in this distribution contains code that demonstrates +how to create a compliant OS. The following files are of primary +relevance:<P> + +<pre> + mach4-i386/kernel/i386at/boothdr.S + mach4-i386/kernel/i386at/model_dep.c +</pre> + +Finally, I have created patches against the Linux 1.2.2 and FreeBSD 2.0 +kernels, in order to make them compliant with this proposed standard. +These patches are available in kahlua.cs.utah.edu:/private/boot.<P> + +<HR> + +<H2><A NAME"example_boot">Example Bootloader Code</A> (from Erich Boleyn)</H2> + +The <A HREF=http://www.uruk.org/grub/>GRUB</A> bootloader project +will be fully +Multiboot-compliant, supporting all required and optional +features present in this standard.<P> + +A final release has not been made, but both the GRUB beta release +(which is quite stable) and a patch for Multiboot version 0.6 for +Mach4 UK22 are available in the GRUB +<A HREF=ftp://ftp.uruk.org/public/grub/>public release</A> +area.<P> + +<HR> + +<A HREF=mailto:erich@uruk.org><I>erich@uruk.org</I></A><P> + +</BODY> +</HTML> + diff --git a/doc/nbi-spec.txt b/doc/nbi-spec.txt new file mode 100644 index 00000000..320f025d --- /dev/null +++ b/doc/nbi-spec.txt @@ -0,0 +1,660 @@ + Draft Net Boot Image Proposal 0.3 + Jamie Honan and Gero Kuhlmann, gero@minix.han.de + June 15, 1997 + + This is the specification of the "tagged image" format + ______________________________________________________________________ + + Table of Contents + + + 1. Note + + 2. Preamble - the why + + 3. The target + + 4. Net Boot Process Description. + + 5. Image Format with Initial Magic Number. + + 6. Boot prom entry points. + + 7. Example of a boot image. + + 8. Terms + + 9. References + + + + ______________________________________________________________________ + + 11.. NNoottee + + + In order to provide more functionality to the boot rom code I changed + Jamie's draft a little bit. All my changes are preceded and followed + by ((ggkk)). + + + + Gero Kuhlmann + + + 22.. PPrreeaammbbllee -- tthhee wwhhyy + + + Whilst researching what other boot proms do (at least those + implementing TCP/IP protocols) it is clear that each 'does their own + thing' in terms of what they expect in a boot image. + + + + If we could all agree on working toward an open standard, O/S + suppliers and boot rom suppliers can build their products to this + norm, and be confident that they will work with each other. + + + + This is a description of how I will implement the boot rom for Linux. + I believe it to be flexible enough for any OS that will be loaded + when a PC boots from a network in the TCP/IP environment. + + + + + It would be good if this could be turned into some form of standard. + + + + This is very much a first draft. I am inviting comment. + + + + The ideas presented here should be independant of any implementation. + In the end, where there is a conflict between the final of this draft, + and an implementation, this description should prevail. + + + + The terms I use are defined at the end. + + + + ((ggkk))IMPORTANT NOTE: The scope of this document starts at the point + where the net boot process gains control from the BIOS, to where the + booted image reaches a state from which there is no return to the net + boot program possible.((ggkk)) + + + 33.. TThhee ttaarrggeett + + + The target is to have a PC retrieve a boot image from a network in the + TCP/IP environment. + + + + ((ggkk))The boot may take place from a network adaptor rom, from a boot + floppy.((ggkk)) + + + 44.. NNeett BBoooott PPrroocceessss DDeessccrriippttiioonn.. + + + ((ggkk))The net boot process is started as a result of the PC boot + process. The net boot program can reside on a rom, e.g. on an adaptor + card, or in ram as a result of reading off disk.((ggkk)) + + + + The boot process may execute in any mode (e.g. 8086, 80386) it + desires. When it jumps to the start location in the boot image, it + must be in 8086 mode and be capable of going into any mode supported + by the underlying processor. + + + + The image cannot be loaded into address spaces below 10000h, or + between A0000h through FFFFFh, or between 98000h through 9FFFFh. + ((ggkk))Only when the image is not going to return to the boot process, + all the memory is available to it once it has been started, so it can + relocate parts of itself to these areas.((ggkk)) + + + + The boot process must be capable of loading the image into all other + memory locations. Specifically, where the machine supports this, this + means memory over 100000h. + + + + The net boot process must execute the bootp protocol, followed by the + tftp protocol, as defined in the relevant rfc's. + + + + The file name used in the tftp protocol must be that given by the + bootp record. + + + + If less than 512 bytes are loaded, the net boot process attempts to + display on the screen any ascii data at the start of the image. The + net boot process then exits in the normal manner. For a boot prom, + this will allow normal disk booting. ((ggkk))Reference to DOS deleted.((ggkk)) + + + + When the first 512 bytes have been loaded, the boot process checks for + an initial magic number, which is defined later. If this number is + present, the net process continues loading under the control of the + image format. The image, which is described later, tells the net boot + process where to put this record and all subsequent data. + + + + If no initial magic number is present the net boot process checks for + a second magic number at offset 510. If the magic number 510 = 55h, + 511 = AAh, then the net process continues. If this second magic number + is not present, then the net boot process terminates the tftp + protocol, displays an error message and exits in the normal manner. + + + + If no initial magic number is present and the second one is, the net + boot process relocates the 512 bytes to location 7c00h. The net boot + process continues to load any further image data to 10000h up. This + data can overwrite the first 512 boot bytes. If the image reaches + 98000h, then any further data is continued to be loaded above 100000h. + When all the data has been loaded, the net boot process jumps to + location 0:7c00. + + + + ((ggkk))When the net boot program calls the image, it places 2 far + pointers onto the stack, in standard intel order (e.g. segment:offset + representation). The first far pointer which immediately follows the + return address on the stack, points to the loaded boot image header. + The second far pointer which is placed above the first one, shows to + the memory area where the net boot process saved the bootp reply. + + + + If the boot image is flagged as being returnable to the boot process, + the boot program has to provide the boot image with interrupt vector + 78h. It's an interface to services provided by the net boot program + (see below for further description). + + + + If the boot image is not flagged as being returnable to the boot + process, before the boot image is called, the boot program has to set + the system into a state in which it was before the net boot process + has started.((ggkk)) + + + + 55.. IImmaaggee FFoorrmmaatt wwiitthh IInniittiiaall MMaaggiicc NNuummbbeerr.. + + + The first 512 bytes of the image file contain the image header, and + image loading information records. This contains all the information + needed by the net boot process as to where data is to be loaded. + + The magic number (in time-honoured tradition (well why not?)) is: + + + ______________________________________________________________________ + 0 = 36h + 1 = 13h + 2 = 03h + 3 = 1Bh + ______________________________________________________________________ + + + + Apart from the two magic numbers, all words and double words are in PC + native endian. + + + + Including the initial magic number the header record is: + + + ______________________________________________________________________ + +---------------------+ + | | + | Initial Magic No. | 4 bytes + +---------------------+ + | | + | Flags and length | double word + +---------------------+ + | | + | Location Address | double word in ds:bx format + +---------------------+ + | | + | Execute Address | double word in cs:ip format + +---------------------+ + ______________________________________________________________________ + + + + The Location address is where to place the 512 bytes. The net boot + process does this before loading the rest of the image. The location + address cannot be one of the reserved locations mentioned above, but + must be an address lower than 100000h. + + + + The rest of the image must not overwrite these initial 512 bytes, + placed at the required location. The writing of data by the net boot + process into these 512 bytes is deprecated. These 512 bytes must be + available for the image to interogate once it is loaded and running. + + + + The execute address is the location in cs:ip of the initial + instruction once the full image has been loaded. This must be lower + than 100000h, since the initial instructions will be executed in 8086 + mode. When the jump (actaully a far call) is made to the boot image, + the stack contains a far return address, with a far pointer parameter + above that, pointing to the location of this header. + + The flags and length field is broken up in the following way: + + + + Bits 0 to 3 (lowest 4 bits) define the length of the non vendor header + in double words. Currently the value is 4. + + + + Bits 4 to 7 define the length required by the vendor extra information + in double words. A value of zero indicates no extra vendor + information. + + + + ((ggkk))Bit 8 is set if the boot image can return to the net boot process + after execution. If this bit is not set the boot image does never + return to the net boot process, and the net boot program has to set + the system into a clean state before calling the boot image. + + + + Bits 9 to 31 are reserved for future use and must be set to zero.((ggkk)) + + + + After this header, and any vendor header, come the image loading + information records. These specify where data is to be loaded, how + long it is, and communicates to the loaded image what sort of data it + is. + + + + The format of each image loading information record is : + + + + ______________________________________________________________________ + +---------------------+ + | Flags, tags and | double word + | lengths | + +---------------------+ + | | + | Load Address | double word + +---------------------+ + | | + | Image Length | double word + +---------------------+ + | | + | Memory Length | double word + +---------------------+ + ______________________________________________________________________ + + + + Each image loading information record follows the previous, or the + header. + + + + The memory length, image length and load address fields are unsigned + 32 numbers. They do not have the segment:offset format used by the + 8086. + + + + The flags, tags and lengths field is broken up as follows: + + + + Bits 0 to 3 (lowest 4 bits) are the length of the non vendor part of + this header in double words. Currently this value is 4. + + + + Bits 4 to 7 indicate the length of any vendor information, in double + words. + + + + Bits 8 to 15 are for vendor's tags. The vendor tag is a private number + that the loaded image can use to determine what sort of image is at + this particular location. + + + + Bits 16 to 23 are for future expansion and should be set to zero. + + + + Bits 24 to 31 are for flags, which are defined later. + + + + Vendors may place further information after this information record, + and before the next. Each information record may have a different + vendor length. + + + + There are two restrictions on vendor information. + + + + One is that the header and all information records that the net boot + process is to use fall within the first 512 bytes. + + + + The second restriction is that the net boot process must ignore all + vendor additions. The net boot process may not overwrite vendor + supplied information, or other undefined data in the initial 512 + bytes. + + + + The flags are used to modify the load address field, and to indicate + that this is the last information record that the net boot process + should use. + + + + Bit 24 works in conjunction with bit 25 to specify the meaning of the + load address. + + + + + + + + + ______________________________________________________________________ + B24 B25 + + 0 0 load address is an absolute 32 number + + 1 0 add the load address to the location one past the last byte + of the memory area required by the last image loaded. + If the first image, then add to 512 plus the location + where the 512 bytes were placed + + 0 1 subtract the load address from the one past the + last writeable location in memory. Thus 1 would + be the last location one could write in memory. + + 1 1 load address is subtracted from the start of + the last image loaded. If the first image, then + subtract from the start of where the 512 bytes were + placed + ______________________________________________________________________ + + + + (For convenience bit 24 is byte 0 of the flag field) + + + + Bit 26 is the end marker for the net boot process. It is set when this + is the last information record the net boot process should look at. + More records may be present, but the net boot process will not look at + them. (Vendors can continue information records out past the 512 + boundary for private use in this manner). + + + + The image length tells the net boot process how many bytes are to be + loaded. Zero is a valid value. This can be used to mark memory areas + such as shared memory for interprocessor communication, flash eproms, + data in eproms. + + + + The image length can also be different from the memory length. This + allows decompression programs to fluff up the kernel image. It also + allows a file system to be larger then the loaded file system image. + + + + Bits 27 through 31 are not defined as yet and must be set to zero + until they are. + + + 66.. BBoooott pprroomm eennttrryy ppooiinnttss.. + + + ((ggkk))As mentioned above the net boot process has to provide interrupt + 78h as an entry point in case, the returnable flag (bit 9 of the flags + field in the image header) of the boot image has been set. When + calling this interface interrupt, the caller has to load the AH + register with a value indicating the type of operation requested: + + + + + + + + ______________________________________________________________________ + 00h - Installation check + Input: none + Output: AX - returns the value 474Bh + BX - flags indicating what further services are + provided by the net boot program: + Bit 0 - packet driver interface (see below) + Bits 1 to 15 are unused and have to be zero + + 01h - Cleanup and terminate the boot process services. This will + also remove the services provided by interrupt 87h. + Input: none + Output: none + ______________________________________________________________________ + + + + + + Further functions are not yet defined. These functions are only + available to boot images which have the first magic number at the + beginning of the image header, and have the returnable flag set in the + flags field. + + + + In order to provide compatibility with net boot programs written to + match an earlier version of this document, the loaded image should + check for the existence of interrupt 78h by looking at it's vector. If + that's 0:0, or if it does not return a proper magic ID after calling + the installation check function, the boot image has to assume that the + net boot program does not support this services interrupt. + + + + If the bit 0 of register BX of function 00h is set, the boot program + has to provide a packet driver <http://www.crynwr.com> interface at + interrupt 79h as described in the packet driver interface standard, + version 1.09, published by FTP Software, Inc., which is not repeated + here. It serves as an interface to the system's network card. It is + important to note that the net boot process has to provide a clean + packet driver interface without any handles being defined when the + boot image gets started. It is expected that the boot image sets up + it's own TCP/IP or other network's stack on top of this packet driver + interface. When the boot image returns to the net boot process, it + has to return a clean packet driver interface as well, without any + handles being defined.((ggkk)) + + + 77.. EExxaammppllee ooff aa bboooott iimmaaggee.. + + + Here is an example of how the boot image would look for Linux: + + + + + + + + + + + + + + ______________________________________________________________________ + 0x1B031336, /* magic number */ + 0x4, /* length of header is 16 bytes, no vendor info */ + 0x90000000, /* location in ds:bx format */ + 0x90000200, /* execute address in cs:ip format */ + + /* 2048 setup.S bytes */ + 0x4, /* flags, not end, absolute address, 16 bytes this + record, no vendor info */ + 0x90200, /* load address - note format */ + 0x800, /* 4 8 512 byte blocks for linux */ + 0x800, + + /* kernel image */ + 0x4, /* flags, not end, absolute address, 16 bytes this + record, no vendor info */ + 0x10000, /* load address - note format */ + 0x80000, /* 512K (this could be shorter */ + 0x80000, + + /* ramdisk for root file system */ + 0x04000004, /* flags = last, absolute address, 16 bytes this + record, no vendor info *// + 0x100000, /* load address - in extended memory */ + 0x80000, /* 512K for instance */ + 0x80000, + + /* Then follows linux specific information */ + ______________________________________________________________________ + + + + + 88.. TTeerrmmss + + + When I say 'the net boot process', I mean the act of loading the image + into memory, setting up any tables, up until the jump to the required + location in the image. + + + + The net booting program executes the net boot process. The net boot + program may be a rom, but not neccassarily. It is a set of + instructions and data residing on the booting machine. + + + + The image, or boot image, consists of the data loaded by the net boot + process. + + + + When I say 'the PC boot process', I mean the general PC rom bios boot + process, the setting up of hardware, the scanning for adaptor roms, + the execution of adaptor roms, the loading in of the initial boot + track. The PC boot process will include the net boot process, if one + is present. + + + + When I say client, I mean the PC booting up. + + + + + When I say 'image host', I mean the host where the boot image is + comming from. This may not have the same architecture as the client. + + + + The bootp protocol is defined in RFC951 and RFC1084. The tftp protocol + is defined in RFC783. These are available on many sites. See Comer + 1991 for details on how to obtain them. + + + + A bootp server is the machine that answers the bootp request. It is + not neccessarily the image host. + + + + "Can" and "may" means doesn't have to, but is allowed to and might. + "Must" means just that. "Cannot" means must not. + + + 99.. RReeffeerreenncceess + + + Comer, D.E. 1991, Internetworking with TCP/IP Vol I: Principles, + Protocols, and Architecture Second Edition, Prentice Hall, Englewood + Cliffs, N.J., 1991 + + + + Stevens, W.R 1990, Unix Network Programming, Prentice Hall, Englewood + Cliffs, N.J., 1990 + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/include/boot/beoboot.h b/include/boot/beoboot.h new file mode 100644 index 00000000..d22fef12 --- /dev/null +++ b/include/boot/beoboot.h @@ -0,0 +1,39 @@ + +/*--- Boot image definitions ---------------------------------------*/ +struct beoboot_header { + char magic[4]; + uint8_t arch; + uint8_t flags; + uint16_t cmdline_size;/* length of command line (including null) */ + /* The alpha chunk is a backward compatibility hack. The original + * assumption was that integer sizes didn't matter because we + * would never mix architectures. x86_64 + i386 broke that + * assumption. It's fixed for that combination and the future. + * However, alpha needs a little hack now... */ +#ifdef __alpha__ + unsigned long kernel_size; + unsigned long initrd_size; +#else + uint32_t kernel_size; + uint32_t initrd_size; +#endif +}; +#define BEOBOOT_MAGIC "BeoB" +#define BEOBOOT_ARCH_I386 1 +#define BEOBOOT_ARCH_ALPHA 2 +#define BEOBOOT_ARCH_PPC 3 +#define BEOBOOT_ARCH_PPC64 4 +#if defined(__i386__) || defined(__x86_64__) +#define BEOBOOT_ARCH BEOBOOT_ARCH_I386 +#elif defined(__alpha__) +#define BEOBOOT_ARCH BEOBOOT_ARCH_ALPHA +#elif defined(powerpc) +#define BEOBOOT_ARCH BEOBOOT_ARCH_PPC +#elif defined(__powerpc64__) +#define BEOBOOT_ARCH BEOBOOT_ARCH_PPC64 +#else +#error Unsupported architecture. +#endif +#define BEOBOOT_INITRD_PRESENT 1 +/*------------------------------------------------------------------*/ + diff --git a/include/boot/elf_boot.h b/include/boot/elf_boot.h new file mode 100644 index 00000000..08f561e2 --- /dev/null +++ b/include/boot/elf_boot.h @@ -0,0 +1,104 @@ +#ifndef ELF_BOOT_H +#define ELF_BOOT_H + +/* This defines the structure of a table of parameters useful for ELF + * bootable images. These parameters are all passed and generated + * by the bootloader to the booted image. For simplicity and + * consistency the Elf Note format is reused. + * + * All of the information must be Position Independent Data. + * That is it must be safe to relocate the whole ELF boot parameter + * block without changing the meaning or correctnes of the data. + * Additionally it must be safe to permute the order of the ELF notes + * to any possible permutation without changing the meaning or correctness + * of the data. + * + */ + +#define ELF_BOOT_MAGIC 0x0E1FB007 + +#ifndef ASSEMBLY +#include <stdint.h> +typedef uint16_t Elf_Half; +typedef uint32_t Elf_Word; +typedef uint64_t Elf_Xword; + +/* + * Elf boot notes... + */ + +typedef struct Elf_Bhdr +{ + Elf_Word b_signature; /* "0x0E1FB007" */ + Elf_Word b_size; + Elf_Half b_checksum; + Elf_Half b_records; +} Elf_Bhdr; + +/* + * ELF Notes. + */ + +typedef struct Elf_Nhdr +{ + Elf_Word n_namesz; /* Length of the note's name. */ + Elf_Word n_descsz; /* Length of the note's descriptor. */ + Elf_Word n_type; /* Type of the note. */ +} Elf_Nhdr; + +#endif /* ASSEMBLY */ + + +/* Standardized Elf image notes for booting... The name for all of these is ELFBoot */ +#define ELF_NOTE_BOOT "ELFBoot" + +#define EIN_PROGRAM_NAME 0x00000001 +/* The program in this ELF file */ +#define EIN_PROGRAM_VERSION 0x00000002 +/* The version of the program in this ELF file */ +#define EIN_PROGRAM_CHECKSUM 0x00000003 +/* ip style checksum of the memory image. */ + + +/* Linux image notes for booting... The name for all of these is Linux */ + +#if 0 +#define LIN_COMMAND_LINE_PTR 0x00000006 +/* Pointer to the command line to pass to the loaded kernel. */ +#define LIN_INITRD_START_PTR 0x00000007 +/* Pointer to the start of the ramdisk in bytes */ +#define LIN_INITRD_SIZE_PTR 0x00000008 +/* Pointer to the size of the ramdisk in bytes */ +#define LIN_VID_MODE_PTR 0x00000009 +/* Pointer to the vid_mode parameter */ +#endif + +/* Etherboot specific notes */ +#define EB_PARAM_NOTE "Etherboot" +#define EB_IA64_SYSTAB 0x00000001 +#define EB_IA64_MEMMAP 0x00000002 +#define EB_IA64_FPSWA 0x00000003 +#define EB_IA64_CONINFO 0x00000004 +#define EB_BOOTP_DATA 0x00000005 +#define EB_HEADER 0x00000006 +#define EB_IA64_IMAGE_HANDLE 0x00000007 +#define EB_I386_MEMMAP 0x00000008 + +/* For standard notes n_namesz must be zero */ +/* All of the following standard note types provide a single null + * terminated string in the descriptor. + */ +#define EBN_FIRMWARE_TYPE 0x00000001 +/* On platforms that support multiple classes of firmware this field + * specifies the class of firmware you are loaded under. + */ +#define EBN_BOOTLOADER_NAME 0x00000002 +/* This specifies just the name of the bootloader for easy comparison */ +#define EBN_BOOTLOADER_VERSION 0x00000003 +/* This specifies the version of the bootlader */ +#define EBN_COMMAND_LINE 0x00000004 +/* This specifies a command line that can be set by user interaction, + * and is provided as a free form string to the loaded image. + */ + +#endif /* ELF_BOOT_H */ diff --git a/include/boot/linuxbios_tables.h b/include/boot/linuxbios_tables.h new file mode 100644 index 00000000..c324cf54 --- /dev/null +++ b/include/boot/linuxbios_tables.h @@ -0,0 +1,82 @@ +#ifndef LINUXBIOS_TABLES_H +#define LINUXBIOS_TABLES_H + +#include <stdint.h> + +/* The linuxbios table information is for conveying information + * from the firmware to the loaded OS image. Primarily this + * is expected to be information that cannot be discovered by + * other means, such as quering the hardware directly. + * + * All of the information should be Position Independent Data. + * That is it should be safe to relocated any of the information + * without it's meaning/correctnes changing. For table that + * can reasonably be used on multiple architectures the data + * size should be fixed. This should ease the transition between + * 32 bit and 64 bit architectures etc. + * + * The completeness test for the information in this table is: + * - Can all of the hardware be detected? + * - Are the per motherboard constants available? + * - Is there enough to allow a kernel to run that was written before + * a particular motherboard is constructed? (Assuming the kernel + * has drivers for all of the hardware but it does not have + * assumptions on how the hardware is connected together). + * + * With this test it should be straight forward to determine if a + * table entry is required or not. This should remove much of the + * long term compatibility burden as table entries which are + * irrelevant or have been replaced by better alternatives may be + * dropped. Of course it is polite and expidite to include extra + * table entries and be backwards compatible, but it is not required. + */ + + +struct lb_header +{ + uint8_t signature[4]; /* LBIO */ + uint32_t header_bytes; + uint32_t header_checksum; + uint32_t table_bytes; + uint32_t table_checksum; + uint32_t table_entries; +}; + +/* Every entry in the boot enviroment list will correspond to a boot + * info record. Encoding both type and size. The type is obviously + * so you can tell what it is. The size allows you to skip that + * boot enviroment record if you don't know what it easy. This allows + * forward compatibility with records not yet defined. + */ +struct lb_record { + uint32_t tag; /* tag ID */ + uint32_t size; /* size of record (in bytes) */ +}; + +#define LB_TAG_UNUSED 0x0000 + +#define LB_TAG_MEMORY 0x0001 + +struct lb_memory_range { + uint64_t start; + uint64_t size; + uint32_t type; +#define LB_MEM_RAM 1 +#define LB_MEM_RESERVED 2 + +}; + +struct lb_memory { + uint32_t tag; + uint32_t size; + struct lb_memory_range map[0]; +}; + +#define LB_TAG_HWRPB 0x0002 +struct lb_hwrpb { + uint32_t tag; + uint32_t size; + uint64_t hwrpb; +}; + +#endif /* LINUXBIOS_TABLES_H */ diff --git a/include/elf.h b/include/elf.h new file mode 100644 index 00000000..c958a40e --- /dev/null +++ b/include/elf.h @@ -0,0 +1,2367 @@ + +/* This file defines standard ELF types, structures, and macros. + Copyright (C) 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ian Lance Taylor <ian@cygnus.com>. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. + + 12 April 2002 Modified by Eric Biederman <ebiederm@xmission.com> so + it can be used outside of glibc. + +*/ + +#ifndef ELF_H +#define ELF_H + +/* Standard ELF types. */ + +#include <stdint.h> +#include <stddef.h> + +/* Type for a 16-bit quantity. */ +typedef uint16_t Elf32_Half; +typedef uint16_t Elf64_Half; + +/* Types for signed and unsigned 32-bit quantities. */ +typedef uint32_t Elf32_Word; +typedef int32_t Elf32_Sword; +typedef uint32_t Elf64_Word; +typedef int32_t Elf64_Sword; + +/* Types for signed and unsigned 64-bit quantities. */ +typedef uint64_t Elf32_Xword; +typedef int64_t Elf32_Sxword; +typedef uint64_t Elf64_Xword; +typedef int64_t Elf64_Sxword; + +/* Type of addresses. */ +typedef uint32_t Elf32_Addr; +typedef uint64_t Elf64_Addr; + +/* Type of file offsets. */ +typedef uint32_t Elf32_Off; +typedef uint64_t Elf64_Off; + +/* Type for section indices, which are 16-bit quantities. */ +typedef uint16_t Elf32_Section; +typedef uint16_t Elf64_Section; + +/* Type of symbol indices. */ +typedef uint32_t Elf32_Symndx; +typedef uint64_t Elf64_Symndx; + +/* Type for version symbol information. */ +typedef Elf32_Half Elf32_Versym; +typedef Elf64_Half Elf64_Versym; + +/* The ELF file header. This appears at the start of every ELF file. */ + +#define EI_NIDENT (16) + +typedef struct +{ + unsigned char e_ident[EI_NIDENT]; /* Magic number and other info */ + Elf32_Half e_type; /* Object file type */ + Elf32_Half e_machine; /* Architecture */ + Elf32_Word e_version; /* Object file version */ + Elf32_Addr e_entry; /* Entry point virtual address */ + Elf32_Off e_phoff; /* Program header table file offset */ + Elf32_Off e_shoff; /* Section header table file offset */ + Elf32_Word e_flags; /* Processor-specific flags */ + Elf32_Half e_ehsize; /* ELF header size in bytes */ + Elf32_Half e_phentsize; /* Program header table entry size */ + Elf32_Half e_phnum; /* Program header table entry count */ + Elf32_Half e_shentsize; /* Section header table entry size */ + Elf32_Half e_shnum; /* Section header table entry count */ + Elf32_Half e_shstrndx; /* Section header string table index */ +} Elf32_Ehdr; + +typedef struct +{ + unsigned char e_ident[EI_NIDENT]; /* Magic number and other info */ + Elf64_Half e_type; /* Object file type */ + Elf64_Half e_machine; /* Architecture */ + Elf64_Word e_version; /* Object file version */ + Elf64_Addr e_entry; /* Entry point virtual address */ + Elf64_Off e_phoff; /* Program header table file offset */ + Elf64_Off e_shoff; /* Section header table file offset */ + Elf64_Word e_flags; /* Processor-specific flags */ + Elf64_Half e_ehsize; /* ELF header size in bytes */ + Elf64_Half e_phentsize; /* Program header table entry size */ + Elf64_Half e_phnum; /* Program header table entry count */ + Elf64_Half e_shentsize; /* Section header table entry size */ + Elf64_Half e_shnum; /* Section header table entry count */ + Elf64_Half e_shstrndx; /* Section header string table index */ +} Elf64_Ehdr; + +/* Fields in the e_ident array. The EI_* macros are indices into the + array. The macros under each EI_* macro are the values the byte + may have. */ + +#define EI_MAG0 0 /* File identification byte 0 index */ +#define ELFMAG0 0x7f /* Magic number byte 0 */ + +#define EI_MAG1 1 /* File identification byte 1 index */ +#define ELFMAG1 'E' /* Magic number byte 1 */ + +#define EI_MAG2 2 /* File identification byte 2 index */ +#define ELFMAG2 'L' /* Magic number byte 2 */ + +#define EI_MAG3 3 /* File identification byte 3 index */ +#define ELFMAG3 'F' /* Magic number byte 3 */ + +/* Conglomeration of the identification bytes, for easy testing as a word. */ +#define ELFMAG "\177ELF" +#define SELFMAG 4 + +#define EI_CLASS 4 /* File class byte index */ +#define ELFCLASSNONE 0 /* Invalid class */ +#define ELFCLASS32 1 /* 32-bit objects */ +#define ELFCLASS64 2 /* 64-bit objects */ +#define ELFCLASSNUM 3 + +#define EI_DATA 5 /* Data encoding byte index */ +#define ELFDATANONE 0 /* Invalid data encoding */ +#define ELFDATA2LSB 1 /* 2's complement, little endian */ +#define ELFDATA2MSB 2 /* 2's complement, big endian */ +#define ELFDATANUM 3 + +#define EI_VERSION 6 /* File version byte index */ + /* Value must be EV_CURRENT */ + +#define EI_OSABI 7 /* OS ABI identification */ +#define ELFOSABI_NONE 0 /* UNIX System V ABI */ +#define ELFOSABI_SYSV 0 /* Alias. */ +#define ELFOSABI_HPUX 1 /* HP-UX */ +#define ELFOSABI_NETBSD 2 /* NetBSD. */ +#define ELFOSABI_LINUX 3 /* Linux. */ +#define ELFOSABI_SOLARIS 6 /* Sun Solaris. */ +#define ELFOSABI_AIX 7 /* IBM AIX. */ +#define ELFOSABI_IRIX 8 /* SGI Irix. */ +#define ELFOSABI_FREEBSD 9 /* FreeBSD. */ +#define ELFOSABI_TRU64 10 /* Compaq TRU64 UNIX. */ +#define ELFOSABI_MODESTO 11 /* Novell Modesto. */ +#define ELFOSABI_OPENBSD 12 /* OpenBSD. */ +#define ELFOSABI_ARM 97 /* ARM */ +#define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */ + +#define EI_ABIVERSION 8 /* ABI version */ + +#define EI_PAD 9 /* Byte index of padding bytes */ + +/* Legal values for e_type (object file type). */ + +#define ET_NONE 0 /* No file type */ +#define ET_REL 1 /* Relocatable file */ +#define ET_EXEC 2 /* Executable file */ +#define ET_DYN 3 /* Shared object file */ +#define ET_CORE 4 /* Core file */ +#define ET_NUM 5 /* Number of defined types */ +#define ET_LOOS 0xfe00 /* OS-specific range start */ +#define ET_HIOS 0xfeff /* OS-specific range end */ +#define ET_LOPROC 0xff00 /* Processor-specific range start */ +#define ET_HIPROC 0xffff /* Processor-specific range end */ + +/* Legal values for e_machine (architecture). */ + +#define EM_NONE 0 /* No machine */ +#define EM_M32 1 /* AT&T WE 32100 */ +#define EM_SPARC 2 /* SUN SPARC */ +#define EM_386 3 /* Intel 80386 */ +#define EM_68K 4 /* Motorola m68k family */ +#define EM_88K 5 /* Motorola m88k family */ +#define EM_486 6 /* Intel 80486 */ +#define EM_860 7 /* Intel 80860 */ +#define EM_MIPS 8 /* MIPS R3000 big-endian */ +#define EM_S370 9 /* Amdahl */ +#define EM_MIPS_RS4_BE 10 /* MIPS R4000 big-endian */ +#define EM_RS6000 11 /* RS6000 */ + +#define EM_PARISC 15 /* HPPA */ +#define EM_nCUBE 16 /* nCUBE */ +#define EM_VPP500 17 /* Fujitsu VPP500 */ +#define EM_SPARC32PLUS 18 /* Sun's "v8plus" */ +#define EM_960 19 /* Intel 80960 */ +#define EM_PPC 20 /* PowerPC */ +#define EM_PPC64 21 /* PowerPC 64-bit */ +#define EM_S390 22 /* IBM S390 */ + +#define EM_V800 36 /* NEC V800 series */ +#define EM_FR20 37 /* Fujitsu FR20 */ +#define EM_RH32 38 /* TRW RH-32 */ +#define EM_RCE 39 /* Motorola RCE */ +#define EM_ARM 40 /* ARM */ +#define EM_FAKE_ALPHA 41 /* Digital Alpha */ +#define EM_SH 42 /* Hitachi SH */ +#define EM_SPARCV9 43 /* SPARC v9 64-bit */ +#define EM_TRICORE 44 /* Siemens Tricore */ +#define EM_ARC 45 /* Argonaut RISC Core */ +#define EM_H8_300 46 /* Hitachi H8/300 */ +#define EM_H8_300H 47 /* Hitachi H8/300H */ +#define EM_H8S 48 /* Hitachi H8S */ +#define EM_H8_500 49 /* Hitachi H8/500 */ +#define EM_IA_64 50 /* Intel Merced */ +#define EM_MIPS_X 51 /* Stanford MIPS-X */ +#define EM_COLDFIRE 52 /* Motorola Coldfire */ +#define EM_68HC12 53 /* Motorola M68HC12 */ +#define EM_MMA 54 /* Fujitsu MMA Multimedia Accelerator*/ +#define EM_PCP 55 /* Siemens PCP */ +#define EM_NCPU 56 /* Sony nCPU embeeded RISC */ +#define EM_NDR1 57 /* Denso NDR1 microprocessor */ +#define EM_STARCORE 58 /* Motorola Start*Core processor */ +#define EM_ME16 59 /* Toyota ME16 processor */ +#define EM_ST100 60 /* STMicroelectronic ST100 processor */ +#define EM_TINYJ 61 /* Advanced Logic Corp. Tinyj emb.fam*/ +#define EM_X86_64 62 /* AMD x86-64 architecture */ +#define EM_PDSP 63 /* Sony DSP Processor */ + +#define EM_FX66 66 /* Siemens FX66 microcontroller */ +#define EM_ST9PLUS 67 /* STMicroelectronics ST9+ 8/16 mc */ +#define EM_ST7 68 /* STmicroelectronics ST7 8 bit mc */ +#define EM_68HC16 69 /* Motorola MC68HC16 microcontroller */ +#define EM_68HC11 70 /* Motorola MC68HC11 microcontroller */ +#define EM_68HC08 71 /* Motorola MC68HC08 microcontroller */ +#define EM_68HC05 72 /* Motorola MC68HC05 microcontroller */ +#define EM_SVX 73 /* Silicon Graphics SVx */ +#define EM_ST19 74 /* STMicroelectronics ST19 8 bit mc */ +#define EM_VAX 75 /* Digital VAX */ +#define EM_CRIS 76 /* Axis Communications 32-bit embedded processor */ +#define EM_JAVELIN 77 /* Infineon Technologies 32-bit embedded processor */ +#define EM_FIREPATH 78 /* Element 14 64-bit DSP Processor */ +#define EM_ZSP 79 /* LSI Logic 16-bit DSP Processor */ +#define EM_MMIX 80 /* Donald Knuth's educational 64-bit processor */ +#define EM_HUANY 81 /* Harvard University machine-independent object files */ +#define EM_PRISM 82 /* SiTera Prism */ +#define EM_AVR 83 /* Atmel AVR 8-bit microcontroller */ +#define EM_FR30 84 /* Fujitsu FR30 */ +#define EM_D10V 85 /* Mitsubishi D10V */ +#define EM_D30V 86 /* Mitsubishi D30V */ +#define EM_V850 87 /* NEC v850 */ +#define EM_M32R 88 /* Mitsubishi M32R */ +#define EM_MN10300 89 /* Matsushita MN10300 */ +#define EM_MN10200 90 /* Matsushita MN10200 */ +#define EM_PJ 91 /* picoJava */ +#define EM_OPENRISC 92 /* OpenRISC 32-bit embedded processor */ +#define EM_ARC_A5 93 /* ARC Cores Tangent-A5 */ +#define EM_XTENSA 94 /* Tensilica Xtensa Architecture */ +#define EM_NUM 95 + +/* If it is necessary to assign new unofficial EM_* values, please + pick large random numbers (0x8523, 0xa7f2, etc.) to minimize the + chances of collision with official or non-GNU unofficial values. */ + +#define EM_ALPHA 0x9026 + +/* Legal values for e_version (version). */ + +#define EV_NONE 0 /* Invalid ELF version */ +#define EV_CURRENT 1 /* Current version */ +#define EV_NUM 2 + +/* Section header. */ + +typedef struct +{ + Elf32_Word sh_name; /* Section name (string tbl index) */ + Elf32_Word sh_type; /* Section type */ + Elf32_Word sh_flags; /* Section flags */ + Elf32_Addr sh_addr; /* Section virtual addr at execution */ + Elf32_Off sh_offset; /* Section file offset */ + Elf32_Word sh_size; /* Section size in bytes */ + Elf32_Word sh_link; /* Link to another section */ + Elf32_Word sh_info; /* Additional section information */ + Elf32_Word sh_addralign; /* Section alignment */ + Elf32_Word sh_entsize; /* Entry size if section holds table */ +} Elf32_Shdr; + +typedef struct +{ + Elf64_Word sh_name; /* Section name (string tbl index) */ + Elf64_Word sh_type; /* Section type */ + Elf64_Xword sh_flags; /* Section flags */ + Elf64_Addr sh_addr; /* Section virtual addr at execution */ + Elf64_Off sh_offset; /* Section file offset */ + Elf64_Xword sh_size; /* Section size in bytes */ + Elf64_Word sh_link; /* Link to another section */ + Elf64_Word sh_info; /* Additional section information */ + Elf64_Xword sh_addralign; /* Section alignment */ + Elf64_Xword sh_entsize; /* Entry size if section holds table */ +} Elf64_Shdr; + +/* Special section indices. */ + +#define SHN_UNDEF 0 /* Undefined section */ +#define SHN_LORESERVE 0xff00 /* Start of reserved indices */ +#define SHN_LOPROC 0xff00 /* Start of processor-specific */ +#define SHN_HIPROC 0xff1f /* End of processor-specific */ +#define SHN_LOOS 0xff20 /* Start of OS-specific */ +#define SHN_HIOS 0xff3f /* End of OS-specific */ +#define SHN_ABS 0xfff1 /* Associated symbol is absolute */ +#define SHN_COMMON 0xfff2 /* Associated symbol is common */ +#define SHN_XINDEX 0xffff /* Index is in extra table. */ +#define SHN_HIRESERVE 0xffff /* End of reserved indices */ + +/* Legal values for sh_type (section type). */ + +#define SHT_NULL 0 /* Section header table entry unused */ +#define SHT_PROGBITS 1 /* Program data */ +#define SHT_SYMTAB 2 /* Symbol table */ +#define SHT_STRTAB 3 /* String table */ +#define SHT_RELA 4 /* Relocation entries with addends */ +#define SHT_HASH 5 /* Symbol hash table */ +#define SHT_DYNAMIC 6 /* Dynamic linking information */ +#define SHT_NOTE 7 /* Notes */ +#define SHT_NOBITS 8 /* Program space with no data (bss) */ +#define SHT_REL 9 /* Relocation entries, no addends */ +#define SHT_SHLIB 10 /* Reserved */ +#define SHT_DYNSYM 11 /* Dynamic linker symbol table */ +#define SHT_INIT_ARRAY 14 /* Array of constructors */ +#define SHT_FINI_ARRAY 15 /* Array of destructors */ +#define SHT_PREINIT_ARRAY 16 /* Array of pre-constructors */ +#define SHT_GROUP 17 /* Section group */ +#define SHT_SYMTAB_SHNDX 18 /* Extended section indeces */ +#define SHT_NUM 19 /* Number of defined types. */ +#define SHT_LOOS 0x60000000 /* Start OS-specific */ +#define SHT_GNU_LIBLIST 0x6ffffff7 /* Prelink library list */ +#define SHT_CHECKSUM 0x6ffffff8 /* Checksum for DSO content. */ +#define SHT_LOSUNW 0x6ffffffa /* Sun-specific low bound. */ +#define SHT_SUNW_move 0x6ffffffa +#define SHT_SUNW_COMDAT 0x6ffffffb +#define SHT_SUNW_syminfo 0x6ffffffc +#define SHT_GNU_verdef 0x6ffffffd /* Version definition section. */ +#define SHT_GNU_verneed 0x6ffffffe /* Version needs section. */ +#define SHT_GNU_versym 0x6fffffff /* Version symbol table. */ +#define SHT_HISUNW 0x6fffffff /* Sun-specific high bound. */ +#define SHT_HIOS 0x6fffffff /* End OS-specific type */ +#define SHT_LOPROC 0x70000000 /* Start of processor-specific */ +#define SHT_HIPROC 0x7fffffff /* End of processor-specific */ +#define SHT_LOUSER 0x80000000 /* Start of application-specific */ +#define SHT_HIUSER 0x8fffffff /* End of application-specific */ + +/* Legal values for sh_flags (section flags). */ + +#define SHF_WRITE (1 << 0) /* Writable */ +#define SHF_ALLOC (1 << 1) /* Occupies memory during execution */ +#define SHF_EXECINSTR (1 << 2) /* Executable */ +#define SHF_MERGE (1 << 4) /* Might be merged */ +#define SHF_STRINGS (1 << 5) /* Contains nul-terminated strings */ +#define SHF_INFO_LINK (1 << 6) /* `sh_info' contains SHT index */ +#define SHF_LINK_ORDER (1 << 7) /* Preserve order after combining */ +#define SHF_OS_NONCONFORMING (1 << 8) /* Non-standard OS specific handling + required */ +#define SHF_GROUP (1 << 9) /* Section is member of a group. */ +#define SHF_TLS (1 << 10) /* Section hold thread-local data. */ +#define SHF_MASKOS 0x0ff00000 /* OS-specific. */ +#define SHF_MASKPROC 0xf0000000 /* Processor-specific */ + +/* Section group handling. */ +#define GRP_COMDAT 0x1 /* Mark group as COMDAT. */ + +/* Symbol table entry. */ + +typedef struct +{ + Elf32_Word st_name; /* Symbol name (string tbl index) */ + Elf32_Addr st_value; /* Symbol value */ + Elf32_Word st_size; /* Symbol size */ + unsigned char st_info; /* Symbol type and binding */ + unsigned char st_other; /* No defined meaning, 0 */ + Elf32_Section st_shndx; /* Section index */ +} Elf32_Sym; + +typedef struct +{ + Elf64_Word st_name; /* Symbol name (string tbl index) */ + unsigned char st_info; /* Symbol type and binding */ + unsigned char st_other; /* No defined meaning, 0 */ + Elf64_Section st_shndx; /* Section index */ + Elf64_Addr st_value; /* Symbol value */ + Elf64_Xword st_size; /* Symbol size */ +} Elf64_Sym; + +/* The syminfo section if available contains additional information about + every dynamic symbol. */ + +typedef struct +{ + Elf32_Half si_boundto; /* Direct bindings, symbol bound to */ + Elf32_Half si_flags; /* Per symbol flags */ +} Elf32_Syminfo; + +typedef struct +{ + Elf64_Half si_boundto; /* Direct bindings, symbol bound to */ + Elf64_Half si_flags; /* Per symbol flags */ +} Elf64_Syminfo; + +/* Possible values for si_boundto. */ +#define SYMINFO_BT_SELF 0xffff /* Symbol bound to self */ +#define SYMINFO_BT_PARENT 0xfffe /* Symbol bound to parent */ +#define SYMINFO_BT_LOWRESERVE 0xff00 /* Beginning of reserved entries */ + +/* Possible bitmasks for si_flags. */ +#define SYMINFO_FLG_DIRECT 0x0001 /* Direct bound symbol */ +#define SYMINFO_FLG_PASSTHRU 0x0002 /* Pass-thru symbol for translator */ +#define SYMINFO_FLG_COPY 0x0004 /* Symbol is a copy-reloc */ +#define SYMINFO_FLG_LAZYLOAD 0x0008 /* Symbol bound to object to be lazy + loaded */ +/* Syminfo version values. */ +#define SYMINFO_NONE 0 +#define SYMINFO_CURRENT 1 +#define SYMINFO_NUM 2 + + +/* Special section index. */ + +#define SHN_UNDEF 0 /* No section, undefined symbol. */ + +/* How to extract and insert information held in the st_info field. */ + +#define ELF32_ST_BIND(val) (((unsigned char) (val)) >> 4) +#define ELF32_ST_TYPE(val) ((val) & 0xf) +#define ELF32_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf)) + +/* Both Elf32_Sym and Elf64_Sym use the same one-byte st_info field. */ +#define ELF64_ST_BIND(val) ELF32_ST_BIND (val) +#define ELF64_ST_TYPE(val) ELF32_ST_TYPE (val) +#define ELF64_ST_INFO(bind, type) ELF32_ST_INFO ((bind), (type)) + +/* Legal values for ST_BIND subfield of st_info (symbol binding). */ + +#define STB_LOCAL 0 /* Local symbol */ +#define STB_GLOBAL 1 /* Global symbol */ +#define STB_WEAK 2 /* Weak symbol */ +#define STB_NUM 3 /* Number of defined types. */ +#define STB_LOOS 10 /* Start of OS-specific */ +#define STB_HIOS 12 /* End of OS-specific */ +#define STB_LOPROC 13 /* Start of processor-specific */ +#define STB_HIPROC 15 /* End of processor-specific */ + +/* Legal values for ST_TYPE subfield of st_info (symbol type). */ + +#define STT_NOTYPE 0 /* Symbol type is unspecified */ +#define STT_OBJECT 1 /* Symbol is a data object */ +#define STT_FUNC 2 /* Symbol is a code object */ +#define STT_SECTION 3 /* Symbol associated with a section */ +#define STT_FILE 4 /* Symbol's name is file name */ +#define STT_COMMON 5 /* Symbol is a common data object */ +#define STT_TLS 6 /* Symbol is thread-local data object*/ +#define STT_NUM 7 /* Number of defined types. */ +#define STT_LOOS 10 /* Start of OS-specific */ +#define STT_HIOS 12 /* End of OS-specific */ +#define STT_LOPROC 13 /* Start of processor-specific */ +#define STT_HIPROC 15 /* End of processor-specific */ + + +/* Symbol table indices are found in the hash buckets and chain table + of a symbol hash table section. This special index value indicates + the end of a chain, meaning no further symbols are found in that bucket. */ + +#define STN_UNDEF 0 /* End of a chain. */ + + +/* How to extract and insert information held in the st_other field. */ + +#define ELF32_ST_VISIBILITY(o) ((o) & 0x03) + +/* For ELF64 the definitions are the same. */ +#define ELF64_ST_VISIBILITY(o) ELF32_ST_VISIBILITY (o) + +/* Symbol visibility specification encoded in the st_other field. */ +#define STV_DEFAULT 0 /* Default symbol visibility rules */ +#define STV_INTERNAL 1 /* Processor specific hidden class */ +#define STV_HIDDEN 2 /* Sym unavailable in other modules */ +#define STV_PROTECTED 3 /* Not preemptible, not exported */ + + +/* Relocation table entry without addend (in section of type SHT_REL). */ + +typedef struct +{ + Elf32_Addr r_offset; /* Address */ + Elf32_Word r_info; /* Relocation type and symbol index */ +} Elf32_Rel; + +/* I have seen two different definitions of the Elf64_Rel and + Elf64_Rela structures, so we'll leave them out until Novell (or + whoever) gets their act together. */ +/* The following, at least, is used on Sparc v9, MIPS, and Alpha. */ + +typedef struct +{ + Elf64_Addr r_offset; /* Address */ + Elf64_Xword r_info; /* Relocation type and symbol index */ +} Elf64_Rel; + +/* Relocation table entry with addend (in section of type SHT_RELA). */ + +typedef struct +{ + Elf32_Addr r_offset; /* Address */ + Elf32_Word r_info; /* Relocation type and symbol index */ + Elf32_Sword r_addend; /* Addend */ +} Elf32_Rela; + +typedef struct +{ + Elf64_Addr r_offset; /* Address */ + Elf64_Xword r_info; /* Relocation type and symbol index */ + Elf64_Sxword r_addend; /* Addend */ +} Elf64_Rela; + +/* How to extract and insert information held in the r_info field. */ + +#define ELF32_R_SYM(val) ((val) >> 8) +#define ELF32_R_TYPE(val) ((val) & 0xff) +#define ELF32_R_INFO(sym, type) (((sym) << 8) + ((type) & 0xff)) + +#define ELF64_R_SYM(i) ((i) >> 32) +#define ELF64_R_TYPE(i) ((i) & 0xffffffff) +#define ELF64_R_INFO(sym,type) ((((Elf64_Xword) (sym)) << 32) + (type)) + +/* Program segment header. */ + +typedef struct +{ + Elf32_Word p_type; /* Segment type */ + Elf32_Off p_offset; /* Segment file offset */ + Elf32_Addr p_vaddr; /* Segment virtual address */ + Elf32_Addr p_paddr; /* Segment physical address */ + Elf32_Word p_filesz; /* Segment size in file */ + Elf32_Word p_memsz; /* Segment size in memory */ + Elf32_Word p_flags; /* Segment flags */ + Elf32_Word p_align; /* Segment alignment */ +} Elf32_Phdr; + +typedef struct +{ + Elf64_Word p_type; /* Segment type */ + Elf64_Word p_flags; /* Segment flags */ + Elf64_Off p_offset; /* Segment file offset */ + Elf64_Addr p_vaddr; /* Segment virtual address */ + Elf64_Addr p_paddr; /* Segment physical address */ + Elf64_Xword p_filesz; /* Segment size in file */ + Elf64_Xword p_memsz; /* Segment size in memory */ + Elf64_Xword p_align; /* Segment alignment */ +} Elf64_Phdr; + +/* Legal values for p_type (segment type). */ + +#define PT_NULL 0 /* Program header table entry unused */ +#define PT_LOAD 1 /* Loadable program segment */ +#define PT_DYNAMIC 2 /* Dynamic linking information */ +#define PT_INTERP 3 /* Program interpreter */ +#define PT_NOTE 4 /* Auxiliary information */ +#define PT_SHLIB 5 /* Reserved */ +#define PT_PHDR 6 /* Entry for header table itself */ +#define PT_TLS 7 /* Thread-local storage segment */ +#define PT_NUM 8 /* Number of defined types */ +#define PT_LOOS 0x60000000 /* Start of OS-specific */ +#define PT_GNU_EH_FRAME 0x6474e550 /* GCC .eh_frame_hdr segment */ +#define PT_GNU_STACK 0x6474e551 /* Indicates stack executability */ +#define PT_LOSUNW 0x6ffffffa +#define PT_SUNWBSS 0x6ffffffa /* Sun Specific segment */ +#define PT_SUNWSTACK 0x6ffffffb /* Stack segment */ +#define PT_HISUNW 0x6fffffff +#define PT_HIOS 0x6fffffff /* End of OS-specific */ +#define PT_LOPROC 0x70000000 /* Start of processor-specific */ +#define PT_HIPROC 0x7fffffff /* End of processor-specific */ + +/* Legal values for p_flags (segment flags). */ + +#define PF_X (1 << 0) /* Segment is executable */ +#define PF_W (1 << 1) /* Segment is writable */ +#define PF_R (1 << 2) /* Segment is readable */ +#define PF_MASKOS 0x0ff00000 /* OS-specific */ +#define PF_MASKPROC 0xf0000000 /* Processor-specific */ + +/* Legal values for note segment descriptor types for core files. */ + +#define NT_PRSTATUS 1 /* Contains copy of prstatus struct */ +#define NT_FPREGSET 2 /* Contains copy of fpregset struct */ +#define NT_PRPSINFO 3 /* Contains copy of prpsinfo struct */ +#define NT_PRXREG 4 /* Contains copy of prxregset struct */ +#define NT_TASKSTRUCT 4 /* Contains copy of task structure */ +#define NT_PLATFORM 5 /* String from sysinfo(SI_PLATFORM) */ +#define NT_AUXV 6 /* Contains copy of auxv array */ +#define NT_GWINDOWS 7 /* Contains copy of gwindows struct */ +#define NT_ASRS 8 /* Contains copy of asrset struct */ +#define NT_PSTATUS 10 /* Contains copy of pstatus struct */ +#define NT_PSINFO 13 /* Contains copy of psinfo struct */ +#define NT_PRCRED 14 /* Contains copy of prcred struct */ +#define NT_UTSNAME 15 /* Contains copy of utsname struct */ +#define NT_LWPSTATUS 16 /* Contains copy of lwpstatus struct */ +#define NT_LWPSINFO 17 /* Contains copy of lwpinfo struct */ +#define NT_PRFPXREG 20 /* Contains copy of fprxregset struct*/ + +/* Legal values for the note segment descriptor types for object files. */ + +#define NT_VERSION 1 /* Contains a version string. */ + + +/* Dynamic section entry. */ + +typedef struct +{ + Elf32_Sword d_tag; /* Dynamic entry type */ + union + { + Elf32_Word d_val; /* Integer value */ + Elf32_Addr d_ptr; /* Address value */ + } d_un; +} Elf32_Dyn; + +typedef struct +{ + Elf64_Sxword d_tag; /* Dynamic entry type */ + union + { + Elf64_Xword d_val; /* Integer value */ + Elf64_Addr d_ptr; /* Address value */ + } d_un; +} Elf64_Dyn; + +/* Legal values for d_tag (dynamic entry type). */ + +#define DT_NULL 0 /* Marks end of dynamic section */ +#define DT_NEEDED 1 /* Name of needed library */ +#define DT_PLTRELSZ 2 /* Size in bytes of PLT relocs */ +#define DT_PLTGOT 3 /* Processor defined value */ +#define DT_HASH 4 /* Address of symbol hash table */ +#define DT_STRTAB 5 /* Address of string table */ +#define DT_SYMTAB 6 /* Address of symbol table */ +#define DT_RELA 7 /* Address of Rela relocs */ +#define DT_RELASZ 8 /* Total size of Rela relocs */ +#define DT_RELAENT 9 /* Size of one Rela reloc */ +#define DT_STRSZ 10 /* Size of string table */ +#define DT_SYMENT 11 /* Size of one symbol table entry */ +#define DT_INIT 12 /* Address of init function */ +#define DT_FINI 13 /* Address of termination function */ +#define DT_SONAME 14 /* Name of shared object */ +#define DT_RPATH 15 /* Library search path */ +#define DT_SYMBOLIC 16 /* Start symbol search here */ +#define DT_REL 17 /* Address of Rel relocs */ +#define DT_RELSZ 18 /* Total size of Rel relocs */ +#define DT_RELENT 19 /* Size of one Rel reloc */ +#define DT_PLTREL 20 /* Type of reloc in PLT */ +#define DT_DEBUG 21 /* For debugging; unspecified */ +#define DT_TEXTREL 22 /* Reloc might modify .text */ +#define DT_JMPREL 23 /* Address of PLT relocs */ +#define DT_BIND_NOW 24 /* Process relocations of object */ +#define DT_INIT_ARRAY 25 /* Array with addresses of init fct */ +#define DT_FINI_ARRAY 26 /* Array with addresses of fini fct */ +#define DT_INIT_ARRAYSZ 27 /* Size in bytes of DT_INIT_ARRAY */ +#define DT_FINI_ARRAYSZ 28 /* Size in bytes of DT_FINI_ARRAY */ +#define DT_RUNPATH 29 /* Library search path */ +#define DT_FLAGS 30 /* Flags for the object being loaded */ +#define DT_ENCODING 32 /* Start of encoded range */ +#define DT_PREINIT_ARRAY 32 /* Array with addresses of preinit fct*/ +#define DT_PREINIT_ARRAYSZ 33 /* size in bytes of DT_PREINIT_ARRAY */ +#define DT_NUM 34 /* Number used */ +#define DT_LOOS 0x60000000 /* Start of OS-specific */ +#define DT_HIOS 0x6fffffff /* End of OS-specific */ +#define DT_LOPROC 0x70000000 /* Start of processor-specific */ +#define DT_HIPROC 0x7fffffff /* End of processor-specific */ +#define DT_PROCNUM DT_MIPS_NUM /* Most used by any processor */ + +/* DT_* entries which fall between DT_VALRNGHI & DT_VALRNGLO use the + Dyn.d_un.d_val field of the Elf*_Dyn structure. This follows Sun's + approach. */ +#define DT_VALRNGLO 0x6ffffd00 +#define DT_GNU_PRELINKED 0x6ffffdf5 /* Prelinking timestamp */ +#define DT_GNU_CONFLICTSZ 0x6ffffdf6 /* Size of conflict section */ +#define DT_GNU_LIBLISTSZ 0x6ffffdf7 /* Size of library list */ +#define DT_CHECKSUM 0x6ffffdf8 +#define DT_PLTPADSZ 0x6ffffdf9 +#define DT_MOVEENT 0x6ffffdfa +#define DT_MOVESZ 0x6ffffdfb +#define DT_FEATURE_1 0x6ffffdfc /* Feature selection (DTF_*). */ +#define DT_POSFLAG_1 0x6ffffdfd /* Flags for DT_* entries, effecting + the following DT_* entry. */ +#define DT_SYMINSZ 0x6ffffdfe /* Size of syminfo table (in bytes) */ +#define DT_SYMINENT 0x6ffffdff /* Entry size of syminfo */ +#define DT_VALRNGHI 0x6ffffdff +#define DT_VALTAGIDX(tag) (DT_VALRNGHI - (tag)) /* Reverse order! */ +#define DT_VALNUM 12 + +/* DT_* entries which fall between DT_ADDRRNGHI & DT_ADDRRNGLO use the + Dyn.d_un.d_ptr field of the Elf*_Dyn structure. + + If any adjustment is made to the ELF object after it has been + built these entries will need to be adjusted. */ +#define DT_ADDRRNGLO 0x6ffffe00 +#define DT_GNU_CONFLICT 0x6ffffef8 /* Start of conflict section */ +#define DT_GNU_LIBLIST 0x6ffffef9 /* Library list */ +#define DT_CONFIG 0x6ffffefa /* Configuration information. */ +#define DT_DEPAUDIT 0x6ffffefb /* Dependency auditing. */ +#define DT_AUDIT 0x6ffffefc /* Object auditing. */ +#define DT_PLTPAD 0x6ffffefd /* PLT padding. */ +#define DT_MOVETAB 0x6ffffefe /* Move table. */ +#define DT_SYMINFO 0x6ffffeff /* Syminfo table. */ +#define DT_ADDRRNGHI 0x6ffffeff +#define DT_ADDRTAGIDX(tag) (DT_ADDRRNGHI - (tag)) /* Reverse order! */ +#define DT_ADDRNUM 10 + +/* The versioning entry types. The next are defined as part of the + GNU extension. */ +#define DT_VERSYM 0x6ffffff0 + +#define DT_RELACOUNT 0x6ffffff9 +#define DT_RELCOUNT 0x6ffffffa + +/* These were chosen by Sun. */ +#define DT_FLAGS_1 0x6ffffffb /* State flags, see DF_1_* below. */ +#define DT_VERDEF 0x6ffffffc /* Address of version definition + table */ +#define DT_VERDEFNUM 0x6ffffffd /* Number of version definitions */ +#define DT_VERNEED 0x6ffffffe /* Address of table with needed + versions */ +#define DT_VERNEEDNUM 0x6fffffff /* Number of needed versions */ +#define DT_VERSIONTAGIDX(tag) (DT_VERNEEDNUM - (tag)) /* Reverse order! */ +#define DT_VERSIONTAGNUM 16 + +/* Sun added these machine-independent extensions in the "processor-specific" + range. Be compatible. */ +#define DT_AUXILIARY 0x7ffffffd /* Shared object to load before self */ +#define DT_FILTER 0x7fffffff /* Shared object to get values from */ +#define DT_EXTRATAGIDX(tag) ((Elf32_Word)-((Elf32_Sword) (tag) <<1>>1)-1) +#define DT_EXTRANUM 3 + +/* Values of `d_un.d_val' in the DT_FLAGS entry. */ +#define DF_ORIGIN 0x00000001 /* Object may use DF_ORIGIN */ +#define DF_SYMBOLIC 0x00000002 /* Symbol resolutions starts here */ +#define DF_TEXTREL 0x00000004 /* Object contains text relocations */ +#define DF_BIND_NOW 0x00000008 /* No lazy binding for this object */ +#define DF_STATIC_TLS 0x00000010 /* Module uses the static TLS model */ + +/* State flags selectable in the `d_un.d_val' element of the DT_FLAGS_1 + entry in the dynamic section. */ +#define DF_1_NOW 0x00000001 /* Set RTLD_NOW for this object. */ +#define DF_1_GLOBAL 0x00000002 /* Set RTLD_GLOBAL for this object. */ +#define DF_1_GROUP 0x00000004 /* Set RTLD_GROUP for this object. */ +#define DF_1_NODELETE 0x00000008 /* Set RTLD_NODELETE for this object.*/ +#define DF_1_LOADFLTR 0x00000010 /* Trigger filtee loading at runtime.*/ +#define DF_1_INITFIRST 0x00000020 /* Set RTLD_INITFIRST for this object*/ +#define DF_1_NOOPEN 0x00000040 /* Set RTLD_NOOPEN for this object. */ +#define DF_1_ORIGIN 0x00000080 /* $ORIGIN must be handled. */ +#define DF_1_DIRECT 0x00000100 /* Direct binding enabled. */ +#define DF_1_TRANS 0x00000200 +#define DF_1_INTERPOSE 0x00000400 /* Object is used to interpose. */ +#define DF_1_NODEFLIB 0x00000800 /* Ignore default lib search path. */ +#define DF_1_NODUMP 0x00001000 /* Object can't be dldump'ed. */ +#define DF_1_CONFALT 0x00002000 /* Configuration alternative created.*/ +#define DF_1_ENDFILTEE 0x00004000 /* Filtee terminates filters search. */ +#define DF_1_DISPRELDNE 0x00008000 /* Disp reloc applied at build time. */ +#define DF_1_DISPRELPND 0x00010000 /* Disp reloc applied at run-time. */ + +/* Flags for the feature selection in DT_FEATURE_1. */ +#define DTF_1_PARINIT 0x00000001 +#define DTF_1_CONFEXP 0x00000002 + +/* Flags in the DT_POSFLAG_1 entry effecting only the next DT_* entry. */ +#define DF_P1_LAZYLOAD 0x00000001 /* Lazyload following object. */ +#define DF_P1_GROUPPERM 0x00000002 /* Symbols from next object are not + generally available. */ + +/* Version definition sections. */ + +typedef struct +{ + Elf32_Half vd_version; /* Version revision */ + Elf32_Half vd_flags; /* Version information */ + Elf32_Half vd_ndx; /* Version Index */ + Elf32_Half vd_cnt; /* Number of associated aux entries */ + Elf32_Word vd_hash; /* Version name hash value */ + Elf32_Word vd_aux; /* Offset in bytes to verdaux array */ + Elf32_Word vd_next; /* Offset in bytes to next verdef + entry */ +} Elf32_Verdef; + +typedef struct +{ + Elf64_Half vd_version; /* Version revision */ + Elf64_Half vd_flags; /* Version information */ + Elf64_Half vd_ndx; /* Version Index */ + Elf64_Half vd_cnt; /* Number of associated aux entries */ + Elf64_Word vd_hash; /* Version name hash value */ + Elf64_Word vd_aux; /* Offset in bytes to verdaux array */ + Elf64_Word vd_next; /* Offset in bytes to next verdef + entry */ +} Elf64_Verdef; + + +/* Legal values for vd_version (version revision). */ +#define VER_DEF_NONE 0 /* No version */ +#define VER_DEF_CURRENT 1 /* Current version */ +#define VER_DEF_NUM 2 /* Given version number */ + +/* Legal values for vd_flags (version information flags). */ +#define VER_FLG_BASE 0x1 /* Version definition of file itself */ +#define VER_FLG_WEAK 0x2 /* Weak version identifier */ + +/* Versym symbol index values. */ +#define VER_NDX_LOCAL 0 /* Symbol is local. */ +#define VER_NDX_GLOBAL 1 /* Symbol is global. */ +#define VER_NDX_LORESERVE 0xff00 /* Beginning of reserved entries. */ +#define VER_NDX_ELIMINATE 0xff01 /* Symbol is to be eliminated. */ + +/* Auxialiary version information. */ + +typedef struct +{ + Elf32_Word vda_name; /* Version or dependency names */ + Elf32_Word vda_next; /* Offset in bytes to next verdaux + entry */ +} Elf32_Verdaux; + +typedef struct +{ + Elf64_Word vda_name; /* Version or dependency names */ + Elf64_Word vda_next; /* Offset in bytes to next verdaux + entry */ +} Elf64_Verdaux; + + +/* Version dependency section. */ + +typedef struct +{ + Elf32_Half vn_version; /* Version of structure */ + Elf32_Half vn_cnt; /* Number of associated aux entries */ + Elf32_Word vn_file; /* Offset of filename for this + dependency */ + Elf32_Word vn_aux; /* Offset in bytes to vernaux array */ + Elf32_Word vn_next; /* Offset in bytes to next verneed + entry */ +} Elf32_Verneed; + +typedef struct +{ + Elf64_Half vn_version; /* Version of structure */ + Elf64_Half vn_cnt; /* Number of associated aux entries */ + Elf64_Word vn_file; /* Offset of filename for this + dependency */ + Elf64_Word vn_aux; /* Offset in bytes to vernaux array */ + Elf64_Word vn_next; /* Offset in bytes to next verneed + entry */ +} Elf64_Verneed; + + +/* Legal values for vn_version (version revision). */ +#define VER_NEED_NONE 0 /* No version */ +#define VER_NEED_CURRENT 1 /* Current version */ +#define VER_NEED_NUM 2 /* Given version number */ + +/* Auxiliary needed version information. */ + +typedef struct +{ + Elf32_Word vna_hash; /* Hash value of dependency name */ + Elf32_Half vna_flags; /* Dependency specific information */ + Elf32_Half vna_other; /* Unused */ + Elf32_Word vna_name; /* Dependency name string offset */ + Elf32_Word vna_next; /* Offset in bytes to next vernaux + entry */ +} Elf32_Vernaux; + +typedef struct +{ + Elf64_Word vna_hash; /* Hash value of dependency name */ + Elf64_Half vna_flags; /* Dependency specific information */ + Elf64_Half vna_other; /* Unused */ + Elf64_Word vna_name; /* Dependency name string offset */ + Elf64_Word vna_next; /* Offset in bytes to next vernaux + entry */ +} Elf64_Vernaux; + + +/* Legal values for vna_flags. */ +#define VER_FLG_WEAK 0x2 /* Weak version identifier */ + + +/* Auxiliary vector. */ + +/* This vector is normally only used by the program interpreter. The + usual definition in an ABI supplement uses the name auxv_t. The + vector is not usually defined in a standard <elf.h> file, but it + can't hurt. We rename it to avoid conflicts. The sizes of these + types are an arrangement between the exec server and the program + interpreter, so we don't fully specify them here. */ + +typedef struct +{ + int a_type; /* Entry type */ + union + { + long int a_val; /* Integer value */ + void *a_ptr; /* Pointer value */ + void (*a_fcn) (void); /* Function pointer value */ + } a_un; +} Elf32_auxv_t; + +typedef struct +{ + long int a_type; /* Entry type */ + union + { + long int a_val; /* Integer value */ + void *a_ptr; /* Pointer value */ + void (*a_fcn) (void); /* Function pointer value */ + } a_un; +} Elf64_auxv_t; + +/* Legal values for a_type (entry type). */ + +#define AT_NULL 0 /* End of vector */ +#define AT_IGNORE 1 /* Entry should be ignored */ +#define AT_EXECFD 2 /* File descriptor of program */ +#define AT_PHDR 3 /* Program headers for program */ +#define AT_PHENT 4 /* Size of program header entry */ +#define AT_PHNUM 5 /* Number of program headers */ +#define AT_PAGESZ 6 /* System page size */ +#define AT_BASE 7 /* Base address of interpreter */ +#define AT_FLAGS 8 /* Flags */ +#define AT_ENTRY 9 /* Entry point of program */ +#define AT_NOTELF 10 /* Program is not ELF */ +#define AT_UID 11 /* Real uid */ +#define AT_EUID 12 /* Effective uid */ +#define AT_GID 13 /* Real gid */ +#define AT_EGID 14 /* Effective gid */ +#define AT_CLKTCK 17 /* Frequency of times() */ + +/* Some more special a_type values describing the hardware. */ +#define AT_PLATFORM 15 /* String identifying platform. */ +#define AT_HWCAP 16 /* Machine dependent hints about + processor capabilities. */ + +/* This entry gives some information about the FPU initialization + performed by the kernel. */ +#define AT_FPUCW 18 /* Used FPU control word. */ + +/* Cache block sizes. */ +#define AT_DCACHEBSIZE 19 /* Data cache block size. */ +#define AT_ICACHEBSIZE 20 /* Instruction cache block size. */ +#define AT_UCACHEBSIZE 21 /* Unified cache block size. */ + +/* A special ignored value for PPC, used by the kernel to control the + interpretation of the AUXV. Must be > 16. */ +#define AT_IGNOREPPC 22 /* Entry should be ignored. */ + +#define AT_SECURE 23 /* Boolean, was exec setuid-like? */ + +/* Pointer to the global system page used for system calls and other + nice things. */ +#define AT_SYSINFO 32 +#define AT_SYSINFO_EHDR 33 + + +/* Note section contents. Each entry in the note section begins with + a header of a fixed form. */ + +typedef struct +{ + Elf32_Word n_namesz; /* Length of the note's name. */ + Elf32_Word n_descsz; /* Length of the note's descriptor. */ + Elf32_Word n_type; /* Type of the note. */ +} Elf32_Nhdr; + +typedef struct +{ + Elf64_Word n_namesz; /* Length of the note's name. */ + Elf64_Word n_descsz; /* Length of the note's descriptor. */ + Elf64_Word n_type; /* Type of the note. */ +} Elf64_Nhdr; + +/* Known names of notes. */ + +/* Solaris entries in the note section have this name. */ +#define ELF_NOTE_SOLARIS "SUNW Solaris" + +/* Note entries for GNU systems have this name. */ +#define ELF_NOTE_GNU "GNU" + + +/* Defined types of notes for Solaris. */ + +/* Value of descriptor (one word) is desired pagesize for the binary. */ +#define ELF_NOTE_PAGESIZE_HINT 1 + + +/* Defined note types for GNU systems. */ + +/* ABI information. The descriptor consists of words: + word 0: OS descriptor + word 1: major version of the ABI + word 2: minor version of the ABI + word 3: subminor version of the ABI +*/ +#define ELF_NOTE_ABI 1 + +/* Known OSes. These value can appear in word 0 of an ELF_NOTE_ABI + note section entry. */ +#define ELF_NOTE_OS_LINUX 0 +#define ELF_NOTE_OS_GNU 1 +#define ELF_NOTE_OS_SOLARIS2 2 +#define ELF_NOTE_OS_FREEBSD 3 + + +/* Move records. */ +typedef struct +{ + Elf32_Xword m_value; /* Symbol value. */ + Elf32_Word m_info; /* Size and index. */ + Elf32_Word m_poffset; /* Symbol offset. */ + Elf32_Half m_repeat; /* Repeat count. */ + Elf32_Half m_stride; /* Stride info. */ +} Elf32_Move; + +typedef struct +{ + Elf64_Xword m_value; /* Symbol value. */ + Elf64_Xword m_info; /* Size and index. */ + Elf64_Xword m_poffset; /* Symbol offset. */ + Elf64_Half m_repeat; /* Repeat count. */ + Elf64_Half m_stride; /* Stride info. */ +} Elf64_Move; + +/* Macro to construct move records. */ +#define ELF32_M_SYM(info) ((info) >> 8) +#define ELF32_M_SIZE(info) ((unsigned char) (info)) +#define ELF32_M_INFO(sym, size) (((sym) << 8) + (unsigned char) (size)) + +#define ELF64_M_SYM(info) ELF32_M_SYM (info) +#define ELF64_M_SIZE(info) ELF32_M_SIZE (info) +#define ELF64_M_INFO(sym, size) ELF32_M_INFO (sym, size) + + +/* Motorola 68k specific definitions. */ + +/* Values for Elf32_Ehdr.e_flags. */ +#define EF_CPU32 0x00810000 + +/* m68k relocs. */ + +#define R_68K_NONE 0 /* No reloc */ +#define R_68K_32 1 /* Direct 32 bit */ +#define R_68K_16 2 /* Direct 16 bit */ +#define R_68K_8 3 /* Direct 8 bit */ +#define R_68K_PC32 4 /* PC relative 32 bit */ +#define R_68K_PC16 5 /* PC relative 16 bit */ +#define R_68K_PC8 6 /* PC relative 8 bit */ +#define R_68K_GOT32 7 /* 32 bit PC relative GOT entry */ +#define R_68K_GOT16 8 /* 16 bit PC relative GOT entry */ +#define R_68K_GOT8 9 /* 8 bit PC relative GOT entry */ +#define R_68K_GOT32O 10 /* 32 bit GOT offset */ +#define R_68K_GOT16O 11 /* 16 bit GOT offset */ +#define R_68K_GOT8O 12 /* 8 bit GOT offset */ +#define R_68K_PLT32 13 /* 32 bit PC relative PLT address */ +#define R_68K_PLT16 14 /* 16 bit PC relative PLT address */ +#define R_68K_PLT8 15 /* 8 bit PC relative PLT address */ +#define R_68K_PLT32O 16 /* 32 bit PLT offset */ +#define R_68K_PLT16O 17 /* 16 bit PLT offset */ +#define R_68K_PLT8O 18 /* 8 bit PLT offset */ +#define R_68K_COPY 19 /* Copy symbol at runtime */ +#define R_68K_GLOB_DAT 20 /* Create GOT entry */ +#define R_68K_JMP_SLOT 21 /* Create PLT entry */ +#define R_68K_RELATIVE 22 /* Adjust by program base */ +/* Keep this the last entry. */ +#define R_68K_NUM 23 + +/* Intel 80386 specific definitions. */ + +/* i386 relocs. */ + +#define R_386_NONE 0 /* No reloc */ +#define R_386_32 1 /* Direct 32 bit */ +#define R_386_PC32 2 /* PC relative 32 bit */ +#define R_386_GOT32 3 /* 32 bit GOT entry */ +#define R_386_PLT32 4 /* 32 bit PLT address */ +#define R_386_COPY 5 /* Copy symbol at runtime */ +#define R_386_GLOB_DAT 6 /* Create GOT entry */ +#define R_386_JMP_SLOT 7 /* Create PLT entry */ +#define R_386_RELATIVE 8 /* Adjust by program base */ +#define R_386_GOTOFF 9 /* 32 bit offset to GOT */ +#define R_386_GOTPC 10 /* 32 bit PC relative offset to GOT */ +#define R_386_32PLT 11 +#define R_386_TLS_TPOFF 14 /* Offset in static TLS block */ +#define R_386_TLS_IE 15 /* Address of GOT entry for static TLS + block offset */ +#define R_386_TLS_GOTIE 16 /* GOT entry for static TLS block + offset */ +#define R_386_TLS_LE 17 /* Offset relative to static TLS + block */ +#define R_386_TLS_GD 18 /* Direct 32 bit for GNU version of + general dynamic thread local data */ +#define R_386_TLS_LDM 19 /* Direct 32 bit for GNU version of + local dynamic thread local data + in LE code */ +#define R_386_16 20 +#define R_386_PC16 21 +#define R_386_8 22 +#define R_386_PC8 23 +#define R_386_TLS_GD_32 24 /* Direct 32 bit for general dynamic + thread local data */ +#define R_386_TLS_GD_PUSH 25 /* Tag for pushl in GD TLS code */ +#define R_386_TLS_GD_CALL 26 /* Relocation for call to + __tls_get_addr() */ +#define R_386_TLS_GD_POP 27 /* Tag for popl in GD TLS code */ +#define R_386_TLS_LDM_32 28 /* Direct 32 bit for local dynamic + thread local data in LE code */ +#define R_386_TLS_LDM_PUSH 29 /* Tag for pushl in LDM TLS code */ +#define R_386_TLS_LDM_CALL 30 /* Relocation for call to + __tls_get_addr() in LDM code */ +#define R_386_TLS_LDM_POP 31 /* Tag for popl in LDM TLS code */ +#define R_386_TLS_LDO_32 32 /* Offset relative to TLS block */ +#define R_386_TLS_IE_32 33 /* GOT entry for negated static TLS + block offset */ +#define R_386_TLS_LE_32 34 /* Negated offset relative to static + TLS block */ +#define R_386_TLS_DTPMOD32 35 /* ID of module containing symbol */ +#define R_386_TLS_DTPOFF32 36 /* Offset in TLS block */ +#define R_386_TLS_TPOFF32 37 /* Negated offset in static TLS block */ +/* Keep this the last entry. */ +#define R_386_NUM 38 + +/* SUN SPARC specific definitions. */ + +/* Legal values for ST_TYPE subfield of st_info (symbol type). */ + +#define STT_REGISTER 13 /* Global register reserved to app. */ + +/* Values for Elf64_Ehdr.e_flags. */ + +#define EF_SPARCV9_MM 3 +#define EF_SPARCV9_TSO 0 +#define EF_SPARCV9_PSO 1 +#define EF_SPARCV9_RMO 2 +#define EF_SPARC_LEDATA 0x800000 /* little endian data */ +#define EF_SPARC_EXT_MASK 0xFFFF00 +#define EF_SPARC_32PLUS 0x000100 /* generic V8+ features */ +#define EF_SPARC_SUN_US1 0x000200 /* Sun UltraSPARC1 extensions */ +#define EF_SPARC_HAL_R1 0x000400 /* HAL R1 extensions */ +#define EF_SPARC_SUN_US3 0x000800 /* Sun UltraSPARCIII extensions */ + +/* SPARC relocs. */ + +#define R_SPARC_NONE 0 /* No reloc */ +#define R_SPARC_8 1 /* Direct 8 bit */ +#define R_SPARC_16 2 /* Direct 16 bit */ +#define R_SPARC_32 3 /* Direct 32 bit */ +#define R_SPARC_DISP8 4 /* PC relative 8 bit */ +#define R_SPARC_DISP16 5 /* PC relative 16 bit */ +#define R_SPARC_DISP32 6 /* PC relative 32 bit */ +#define R_SPARC_WDISP30 7 /* PC relative 30 bit shifted */ +#define R_SPARC_WDISP22 8 /* PC relative 22 bit shifted */ +#define R_SPARC_HI22 9 /* High 22 bit */ +#define R_SPARC_22 10 /* Direct 22 bit */ +#define R_SPARC_13 11 /* Direct 13 bit */ +#define R_SPARC_LO10 12 /* Truncated 10 bit */ +#define R_SPARC_GOT10 13 /* Truncated 10 bit GOT entry */ +#define R_SPARC_GOT13 14 /* 13 bit GOT entry */ +#define R_SPARC_GOT22 15 /* 22 bit GOT entry shifted */ +#define R_SPARC_PC10 16 /* PC relative 10 bit truncated */ +#define R_SPARC_PC22 17 /* PC relative 22 bit shifted */ +#define R_SPARC_WPLT30 18 /* 30 bit PC relative PLT address */ +#define R_SPARC_COPY 19 /* Copy symbol at runtime */ +#define R_SPARC_GLOB_DAT 20 /* Create GOT entry */ +#define R_SPARC_JMP_SLOT 21 /* Create PLT entry */ +#define R_SPARC_RELATIVE 22 /* Adjust by program base */ +#define R_SPARC_UA32 23 /* Direct 32 bit unaligned */ + +/* Additional Sparc64 relocs. */ + +#define R_SPARC_PLT32 24 /* Direct 32 bit ref to PLT entry */ +#define R_SPARC_HIPLT22 25 /* High 22 bit PLT entry */ +#define R_SPARC_LOPLT10 26 /* Truncated 10 bit PLT entry */ +#define R_SPARC_PCPLT32 27 /* PC rel 32 bit ref to PLT entry */ +#define R_SPARC_PCPLT22 28 /* PC rel high 22 bit PLT entry */ +#define R_SPARC_PCPLT10 29 /* PC rel trunc 10 bit PLT entry */ +#define R_SPARC_10 30 /* Direct 10 bit */ +#define R_SPARC_11 31 /* Direct 11 bit */ +#define R_SPARC_64 32 /* Direct 64 bit */ +#define R_SPARC_OLO10 33 /* 10bit with secondary 13bit addend */ +#define R_SPARC_HH22 34 /* Top 22 bits of direct 64 bit */ +#define R_SPARC_HM10 35 /* High middle 10 bits of ... */ +#define R_SPARC_LM22 36 /* Low middle 22 bits of ... */ +#define R_SPARC_PC_HH22 37 /* Top 22 bits of pc rel 64 bit */ +#define R_SPARC_PC_HM10 38 /* High middle 10 bit of ... */ +#define R_SPARC_PC_LM22 39 /* Low miggle 22 bits of ... */ +#define R_SPARC_WDISP16 40 /* PC relative 16 bit shifted */ +#define R_SPARC_WDISP19 41 /* PC relative 19 bit shifted */ +#define R_SPARC_7 43 /* Direct 7 bit */ +#define R_SPARC_5 44 /* Direct 5 bit */ +#define R_SPARC_6 45 /* Direct 6 bit */ +#define R_SPARC_DISP64 46 /* PC relative 64 bit */ +#define R_SPARC_PLT64 47 /* Direct 64 bit ref to PLT entry */ +#define R_SPARC_HIX22 48 /* High 22 bit complemented */ +#define R_SPARC_LOX10 49 /* Truncated 11 bit complemented */ +#define R_SPARC_H44 50 /* Direct high 12 of 44 bit */ +#define R_SPARC_M44 51 /* Direct mid 22 of 44 bit */ +#define R_SPARC_L44 52 /* Direct low 10 of 44 bit */ +#define R_SPARC_REGISTER 53 /* Global register usage */ +#define R_SPARC_UA64 54 /* Direct 64 bit unaligned */ +#define R_SPARC_UA16 55 /* Direct 16 bit unaligned */ +#define R_SPARC_TLS_GD_HI22 56 +#define R_SPARC_TLS_GD_LO10 57 +#define R_SPARC_TLS_GD_ADD 58 +#define R_SPARC_TLS_GD_CALL 59 +#define R_SPARC_TLS_LDM_HI22 60 +#define R_SPARC_TLS_LDM_LO10 61 +#define R_SPARC_TLS_LDM_ADD 62 +#define R_SPARC_TLS_LDM_CALL 63 +#define R_SPARC_TLS_LDO_HIX22 64 +#define R_SPARC_TLS_LDO_LOX10 65 +#define R_SPARC_TLS_LDO_ADD 66 +#define R_SPARC_TLS_IE_HI22 67 +#define R_SPARC_TLS_IE_LO10 68 +#define R_SPARC_TLS_IE_LD 69 +#define R_SPARC_TLS_IE_LDX 70 +#define R_SPARC_TLS_IE_ADD 71 +#define R_SPARC_TLS_LE_HIX22 72 +#define R_SPARC_TLS_LE_LOX10 73 +#define R_SPARC_TLS_DTPMOD32 74 +#define R_SPARC_TLS_DTPMOD64 75 +#define R_SPARC_TLS_DTPOFF32 76 +#define R_SPARC_TLS_DTPOFF64 77 +#define R_SPARC_TLS_TPOFF32 78 +#define R_SPARC_TLS_TPOFF64 79 +/* Keep this the last entry. */ +#define R_SPARC_NUM 80 + +/* For Sparc64, legal values for d_tag of Elf64_Dyn. */ + +#define DT_SPARC_REGISTER 0x70000001 +#define DT_SPARC_NUM 2 + +/* Bits present in AT_HWCAP, primarily for Sparc32. */ + +#define HWCAP_SPARC_FLUSH 1 /* The cpu supports flush insn. */ +#define HWCAP_SPARC_STBAR 2 +#define HWCAP_SPARC_SWAP 4 +#define HWCAP_SPARC_MULDIV 8 +#define HWCAP_SPARC_V9 16 /* The cpu is v9, so v8plus is ok. */ +#define HWCAP_SPARC_ULTRA3 32 + +/* MIPS R3000 specific definitions. */ + +/* Legal values for e_flags field of Elf32_Ehdr. */ + +#define EF_MIPS_NOREORDER 1 /* A .noreorder directive was used */ +#define EF_MIPS_PIC 2 /* Contains PIC code */ +#define EF_MIPS_CPIC 4 /* Uses PIC calling sequence */ +#define EF_MIPS_XGOT 8 +#define EF_MIPS_64BIT_WHIRL 16 +#define EF_MIPS_ABI2 32 +#define EF_MIPS_ABI_ON32 64 +#define EF_MIPS_ARCH 0xf0000000 /* MIPS architecture level */ + +/* Legal values for MIPS architecture level. */ + +#define EF_MIPS_ARCH_1 0x00000000 /* -mips1 code. */ +#define EF_MIPS_ARCH_2 0x10000000 /* -mips2 code. */ +#define EF_MIPS_ARCH_3 0x20000000 /* -mips3 code. */ +#define EF_MIPS_ARCH_4 0x30000000 /* -mips4 code. */ +#define EF_MIPS_ARCH_5 0x40000000 /* -mips5 code. */ +#define EF_MIPS_ARCH_32 0x60000000 /* MIPS32 code. */ +#define EF_MIPS_ARCH_64 0x70000000 /* MIPS64 code. */ + +/* The following are non-official names and should not be used. */ + +#define E_MIPS_ARCH_1 0x00000000 /* -mips1 code. */ +#define E_MIPS_ARCH_2 0x10000000 /* -mips2 code. */ +#define E_MIPS_ARCH_3 0x20000000 /* -mips3 code. */ +#define E_MIPS_ARCH_4 0x30000000 /* -mips4 code. */ +#define E_MIPS_ARCH_5 0x40000000 /* -mips5 code. */ +#define E_MIPS_ARCH_32 0x60000000 /* MIPS32 code. */ +#define E_MIPS_ARCH_64 0x70000000 /* MIPS64 code. */ + +/* Special section indices. */ + +#define SHN_MIPS_ACOMMON 0xff00 /* Allocated common symbols */ +#define SHN_MIPS_TEXT 0xff01 /* Allocated test symbols. */ +#define SHN_MIPS_DATA 0xff02 /* Allocated data symbols. */ +#define SHN_MIPS_SCOMMON 0xff03 /* Small common symbols */ +#define SHN_MIPS_SUNDEFINED 0xff04 /* Small undefined symbols */ + +/* Legal values for sh_type field of Elf32_Shdr. */ + +#define SHT_MIPS_LIBLIST 0x70000000 /* Shared objects used in link */ +#define SHT_MIPS_MSYM 0x70000001 +#define SHT_MIPS_CONFLICT 0x70000002 /* Conflicting symbols */ +#define SHT_MIPS_GPTAB 0x70000003 /* Global data area sizes */ +#define SHT_MIPS_UCODE 0x70000004 /* Reserved for SGI/MIPS compilers */ +#define SHT_MIPS_DEBUG 0x70000005 /* MIPS ECOFF debugging information*/ +#define SHT_MIPS_REGINFO 0x70000006 /* Register usage information */ +#define SHT_MIPS_PACKAGE 0x70000007 +#define SHT_MIPS_PACKSYM 0x70000008 +#define SHT_MIPS_RELD 0x70000009 +#define SHT_MIPS_IFACE 0x7000000b +#define SHT_MIPS_CONTENT 0x7000000c +#define SHT_MIPS_OPTIONS 0x7000000d /* Miscellaneous options. */ +#define SHT_MIPS_SHDR 0x70000010 +#define SHT_MIPS_FDESC 0x70000011 +#define SHT_MIPS_EXTSYM 0x70000012 +#define SHT_MIPS_DENSE 0x70000013 +#define SHT_MIPS_PDESC 0x70000014 +#define SHT_MIPS_LOCSYM 0x70000015 +#define SHT_MIPS_AUXSYM 0x70000016 +#define SHT_MIPS_OPTSYM 0x70000017 +#define SHT_MIPS_LOCSTR 0x70000018 +#define SHT_MIPS_LINE 0x70000019 +#define SHT_MIPS_RFDESC 0x7000001a +#define SHT_MIPS_DELTASYM 0x7000001b +#define SHT_MIPS_DELTAINST 0x7000001c +#define SHT_MIPS_DELTACLASS 0x7000001d +#define SHT_MIPS_DWARF 0x7000001e /* DWARF debugging information. */ +#define SHT_MIPS_DELTADECL 0x7000001f +#define SHT_MIPS_SYMBOL_LIB 0x70000020 +#define SHT_MIPS_EVENTS 0x70000021 /* Event section. */ +#define SHT_MIPS_TRANSLATE 0x70000022 +#define SHT_MIPS_PIXIE 0x70000023 +#define SHT_MIPS_XLATE 0x70000024 +#define SHT_MIPS_XLATE_DEBUG 0x70000025 +#define SHT_MIPS_WHIRL 0x70000026 +#define SHT_MIPS_EH_REGION 0x70000027 +#define SHT_MIPS_XLATE_OLD 0x70000028 +#define SHT_MIPS_PDR_EXCEPTION 0x70000029 + +/* Legal values for sh_flags field of Elf32_Shdr. */ + +#define SHF_MIPS_GPREL 0x10000000 /* Must be part of global data area */ +#define SHF_MIPS_MERGE 0x20000000 +#define SHF_MIPS_ADDR 0x40000000 +#define SHF_MIPS_STRINGS 0x80000000 +#define SHF_MIPS_NOSTRIP 0x08000000 +#define SHF_MIPS_LOCAL 0x04000000 +#define SHF_MIPS_NAMES 0x02000000 +#define SHF_MIPS_NODUPE 0x01000000 + + +/* Symbol tables. */ + +/* MIPS specific values for `st_other'. */ +#define STO_MIPS_DEFAULT 0x0 +#define STO_MIPS_INTERNAL 0x1 +#define STO_MIPS_HIDDEN 0x2 +#define STO_MIPS_PROTECTED 0x3 +#define STO_MIPS_SC_ALIGN_UNUSED 0xff + +/* MIPS specific values for `st_info'. */ +#define STB_MIPS_SPLIT_COMMON 13 + +/* Entries found in sections of type SHT_MIPS_GPTAB. */ + +typedef union +{ + struct + { + Elf32_Word gt_current_g_value; /* -G value used for compilation */ + Elf32_Word gt_unused; /* Not used */ + } gt_header; /* First entry in section */ + struct + { + Elf32_Word gt_g_value; /* If this value were used for -G */ + Elf32_Word gt_bytes; /* This many bytes would be used */ + } gt_entry; /* Subsequent entries in section */ +} Elf32_gptab; + +/* Entry found in sections of type SHT_MIPS_REGINFO. */ + +typedef struct +{ + Elf32_Word ri_gprmask; /* General registers used */ + Elf32_Word ri_cprmask[4]; /* Coprocessor registers used */ + Elf32_Sword ri_gp_value; /* $gp register value */ +} Elf32_RegInfo; + +/* Entries found in sections of type SHT_MIPS_OPTIONS. */ + +typedef struct +{ + unsigned char kind; /* Determines interpretation of the + variable part of descriptor. */ + unsigned char size; /* Size of descriptor, including header. */ + Elf32_Section section; /* Section header index of section affected, + 0 for global options. */ + Elf32_Word info; /* Kind-specific information. */ +} Elf_Options; + +/* Values for `kind' field in Elf_Options. */ + +#define ODK_NULL 0 /* Undefined. */ +#define ODK_REGINFO 1 /* Register usage information. */ +#define ODK_EXCEPTIONS 2 /* Exception processing options. */ +#define ODK_PAD 3 /* Section padding options. */ +#define ODK_HWPATCH 4 /* Hardware workarounds performed */ +#define ODK_FILL 5 /* record the fill value used by the linker. */ +#define ODK_TAGS 6 /* reserve space for desktop tools to write. */ +#define ODK_HWAND 7 /* HW workarounds. 'AND' bits when merging. */ +#define ODK_HWOR 8 /* HW workarounds. 'OR' bits when merging. */ + +/* Values for `info' in Elf_Options for ODK_EXCEPTIONS entries. */ + +#define OEX_FPU_MIN 0x1f /* FPE's which MUST be enabled. */ +#define OEX_FPU_MAX 0x1f00 /* FPE's which MAY be enabled. */ +#define OEX_PAGE0 0x10000 /* page zero must be mapped. */ +#define OEX_SMM 0x20000 /* Force sequential memory mode? */ +#define OEX_FPDBUG 0x40000 /* Force floating point debug mode? */ +#define OEX_PRECISEFP OEX_FPDBUG +#define OEX_DISMISS 0x80000 /* Dismiss invalid address faults? */ + +#define OEX_FPU_INVAL 0x10 +#define OEX_FPU_DIV0 0x08 +#define OEX_FPU_OFLO 0x04 +#define OEX_FPU_UFLO 0x02 +#define OEX_FPU_INEX 0x01 + +/* Masks for `info' in Elf_Options for an ODK_HWPATCH entry. */ + +#define OHW_R4KEOP 0x1 /* R4000 end-of-page patch. */ +#define OHW_R8KPFETCH 0x2 /* may need R8000 prefetch patch. */ +#define OHW_R5KEOP 0x4 /* R5000 end-of-page patch. */ +#define OHW_R5KCVTL 0x8 /* R5000 cvt.[ds].l bug. clean=1. */ + +#define OPAD_PREFIX 0x1 +#define OPAD_POSTFIX 0x2 +#define OPAD_SYMBOL 0x4 + +/* Entry found in `.options' section. */ + +typedef struct +{ + Elf32_Word hwp_flags1; /* Extra flags. */ + Elf32_Word hwp_flags2; /* Extra flags. */ +} Elf_Options_Hw; + +/* Masks for `info' in ElfOptions for ODK_HWAND and ODK_HWOR entries. */ + +#define OHWA0_R4KEOP_CHECKED 0x00000001 +#define OHWA1_R4KEOP_CLEAN 0x00000002 + +/* MIPS relocs. */ + +#define R_MIPS_NONE 0 /* No reloc */ +#define R_MIPS_16 1 /* Direct 16 bit */ +#define R_MIPS_32 2 /* Direct 32 bit */ +#define R_MIPS_REL32 3 /* PC relative 32 bit */ +#define R_MIPS_26 4 /* Direct 26 bit shifted */ +#define R_MIPS_HI16 5 /* High 16 bit */ +#define R_MIPS_LO16 6 /* Low 16 bit */ +#define R_MIPS_GPREL16 7 /* GP relative 16 bit */ +#define R_MIPS_LITERAL 8 /* 16 bit literal entry */ +#define R_MIPS_GOT16 9 /* 16 bit GOT entry */ +#define R_MIPS_PC16 10 /* PC relative 16 bit */ +#define R_MIPS_CALL16 11 /* 16 bit GOT entry for function */ +#define R_MIPS_GPREL32 12 /* GP relative 32 bit */ + +#define R_MIPS_SHIFT5 16 +#define R_MIPS_SHIFT6 17 +#define R_MIPS_64 18 +#define R_MIPS_GOT_DISP 19 +#define R_MIPS_GOT_PAGE 20 +#define R_MIPS_GOT_OFST 21 +#define R_MIPS_GOT_HI16 22 +#define R_MIPS_GOT_LO16 23 +#define R_MIPS_SUB 24 +#define R_MIPS_INSERT_A 25 +#define R_MIPS_INSERT_B 26 +#define R_MIPS_DELETE 27 +#define R_MIPS_HIGHER 28 +#define R_MIPS_HIGHEST 29 +#define R_MIPS_CALL_HI16 30 +#define R_MIPS_CALL_LO16 31 +#define R_MIPS_SCN_DISP 32 +#define R_MIPS_REL16 33 +#define R_MIPS_ADD_IMMEDIATE 34 +#define R_MIPS_PJUMP 35 +#define R_MIPS_RELGOT 36 +#define R_MIPS_JALR 37 +/* Keep this the last entry. */ +#define R_MIPS_NUM 38 + +/* Legal values for p_type field of Elf32_Phdr. */ + +#define PT_MIPS_REGINFO 0x70000000 /* Register usage information */ +#define PT_MIPS_RTPROC 0x70000001 /* Runtime procedure table. */ +#define PT_MIPS_OPTIONS 0x70000002 + +/* Special program header types. */ + +#define PF_MIPS_LOCAL 0x10000000 + +/* Legal values for d_tag field of Elf32_Dyn. */ + +#define DT_MIPS_RLD_VERSION 0x70000001 /* Runtime linker interface version */ +#define DT_MIPS_TIME_STAMP 0x70000002 /* Timestamp */ +#define DT_MIPS_ICHECKSUM 0x70000003 /* Checksum */ +#define DT_MIPS_IVERSION 0x70000004 /* Version string (string tbl index) */ +#define DT_MIPS_FLAGS 0x70000005 /* Flags */ +#define DT_MIPS_BASE_ADDRESS 0x70000006 /* Base address */ +#define DT_MIPS_MSYM 0x70000007 +#define DT_MIPS_CONFLICT 0x70000008 /* Address of CONFLICT section */ +#define DT_MIPS_LIBLIST 0x70000009 /* Address of LIBLIST section */ +#define DT_MIPS_LOCAL_GOTNO 0x7000000a /* Number of local GOT entries */ +#define DT_MIPS_CONFLICTNO 0x7000000b /* Number of CONFLICT entries */ +#define DT_MIPS_LIBLISTNO 0x70000010 /* Number of LIBLIST entries */ +#define DT_MIPS_SYMTABNO 0x70000011 /* Number of DYNSYM entries */ +#define DT_MIPS_UNREFEXTNO 0x70000012 /* First external DYNSYM */ +#define DT_MIPS_GOTSYM 0x70000013 /* First GOT entry in DYNSYM */ +#define DT_MIPS_HIPAGENO 0x70000014 /* Number of GOT page table entries */ +#define DT_MIPS_RLD_MAP 0x70000016 /* Address of run time loader map. */ +#define DT_MIPS_DELTA_CLASS 0x70000017 /* Delta C++ class definition. */ +#define DT_MIPS_DELTA_CLASS_NO 0x70000018 /* Number of entries in + DT_MIPS_DELTA_CLASS. */ +#define DT_MIPS_DELTA_INSTANCE 0x70000019 /* Delta C++ class instances. */ +#define DT_MIPS_DELTA_INSTANCE_NO 0x7000001a /* Number of entries in + DT_MIPS_DELTA_INSTANCE. */ +#define DT_MIPS_DELTA_RELOC 0x7000001b /* Delta relocations. */ +#define DT_MIPS_DELTA_RELOC_NO 0x7000001c /* Number of entries in + DT_MIPS_DELTA_RELOC. */ +#define DT_MIPS_DELTA_SYM 0x7000001d /* Delta symbols that Delta + relocations refer to. */ +#define DT_MIPS_DELTA_SYM_NO 0x7000001e /* Number of entries in + DT_MIPS_DELTA_SYM. */ +#define DT_MIPS_DELTA_CLASSSYM 0x70000020 /* Delta symbols that hold the + class declaration. */ +#define DT_MIPS_DELTA_CLASSSYM_NO 0x70000021 /* Number of entries in + DT_MIPS_DELTA_CLASSSYM. */ +#define DT_MIPS_CXX_FLAGS 0x70000022 /* Flags indicating for C++ flavor. */ +#define DT_MIPS_PIXIE_INIT 0x70000023 +#define DT_MIPS_SYMBOL_LIB 0x70000024 +#define DT_MIPS_LOCALPAGE_GOTIDX 0x70000025 +#define DT_MIPS_LOCAL_GOTIDX 0x70000026 +#define DT_MIPS_HIDDEN_GOTIDX 0x70000027 +#define DT_MIPS_PROTECTED_GOTIDX 0x70000028 +#define DT_MIPS_OPTIONS 0x70000029 /* Address of .options. */ +#define DT_MIPS_INTERFACE 0x7000002a /* Address of .interface. */ +#define DT_MIPS_DYNSTR_ALIGN 0x7000002b +#define DT_MIPS_INTERFACE_SIZE 0x7000002c /* Size of the .interface section. */ +#define DT_MIPS_RLD_TEXT_RESOLVE_ADDR 0x7000002d /* Address of rld_text_rsolve + function stored in GOT. */ +#define DT_MIPS_PERF_SUFFIX 0x7000002e /* Default suffix of dso to be added + by rld on dlopen() calls. */ +#define DT_MIPS_COMPACT_SIZE 0x7000002f /* (O32)Size of compact rel section. */ +#define DT_MIPS_GP_VALUE 0x70000030 /* GP value for aux GOTs. */ +#define DT_MIPS_AUX_DYNAMIC 0x70000031 /* Address of aux .dynamic. */ +#define DT_MIPS_NUM 0x32 + +/* Legal values for DT_MIPS_FLAGS Elf32_Dyn entry. */ + +#define RHF_NONE 0 /* No flags */ +#define RHF_QUICKSTART (1 << 0) /* Use quickstart */ +#define RHF_NOTPOT (1 << 1) /* Hash size not power of 2 */ +#define RHF_NO_LIBRARY_REPLACEMENT (1 << 2) /* Ignore LD_LIBRARY_PATH */ +#define RHF_NO_MOVE (1 << 3) +#define RHF_SGI_ONLY (1 << 4) +#define RHF_GUARANTEE_INIT (1 << 5) +#define RHF_DELTA_C_PLUS_PLUS (1 << 6) +#define RHF_GUARANTEE_START_INIT (1 << 7) +#define RHF_PIXIE (1 << 8) +#define RHF_DEFAULT_DELAY_LOAD (1 << 9) +#define RHF_REQUICKSTART (1 << 10) +#define RHF_REQUICKSTARTED (1 << 11) +#define RHF_CORD (1 << 12) +#define RHF_NO_UNRES_UNDEF (1 << 13) +#define RHF_RLD_ORDER_SAFE (1 << 14) + +/* Entries found in sections of type SHT_MIPS_LIBLIST. */ + +typedef struct +{ + Elf32_Word l_name; /* Name (string table index) */ + Elf32_Word l_time_stamp; /* Timestamp */ + Elf32_Word l_checksum; /* Checksum */ + Elf32_Word l_version; /* Interface version */ + Elf32_Word l_flags; /* Flags */ +} Elf32_Lib; + +typedef struct +{ + Elf64_Word l_name; /* Name (string table index) */ + Elf64_Word l_time_stamp; /* Timestamp */ + Elf64_Word l_checksum; /* Checksum */ + Elf64_Word l_version; /* Interface version */ + Elf64_Word l_flags; /* Flags */ +} Elf64_Lib; + + +/* Legal values for l_flags. */ + +#define LL_NONE 0 +#define LL_EXACT_MATCH (1 << 0) /* Require exact match */ +#define LL_IGNORE_INT_VER (1 << 1) /* Ignore interface version */ +#define LL_REQUIRE_MINOR (1 << 2) +#define LL_EXPORTS (1 << 3) +#define LL_DELAY_LOAD (1 << 4) +#define LL_DELTA (1 << 5) + +/* Entries found in sections of type SHT_MIPS_CONFLICT. */ + +typedef Elf32_Addr Elf32_Conflict; + + +/* HPPA specific definitions. */ + +/* Legal values for e_flags field of Elf32_Ehdr. */ + +#define EF_PARISC_TRAPNL 1 /* Trap nil pointer dereference. */ +#define EF_PARISC_EXT 2 /* Program uses arch. extensions. */ +#define EF_PARISC_ARCH 0xffff0000 /* Architecture version. */ +/* Defined values are: + 0x020b PA-RISC 1.0 big-endian + 0x0210 PA-RISC 1.1 big-endian + 0x028b PA-RISC 1.0 little-endian + 0x0290 PA-RISC 1.1 little-endian +*/ + +/* Legal values for sh_type field of Elf32_Shdr. */ + +#define SHT_PARISC_GOT 0x70000000 /* GOT for external data. */ +#define SHT_PARISC_ARCH 0x70000001 /* Architecture extensions. */ +#define SHT_PARISC_GLOBAL 0x70000002 /* Definition of $global$. */ +#define SHT_PARISC_MILLI 0x70000003 /* Millicode routines. */ +#define SHT_PARISC_UNWIND 0x70000004 /* Unwind information. */ +#define SHT_PARISC_PLT 0x70000005 /* Procedure linkage table. */ +#define SHT_PARISC_SDATA 0x70000006 /* Short initialized data. */ +#define SHT_PARISC_SBSS 0x70000007 /* Short uninitialized data. */ +#define SHT_PARISC_SYMEXTN 0x70000008 /* Argument/relocation info. */ +#define SHT_PARISC_STUBS 0x70000009 /* Linker stubs. */ + +/* Legal values for sh_flags field of Elf32_Shdr. */ + +#define SHF_PARISC_GLOBAL 0x10000000 /* Section defines dp. */ +#define SHF_PARISC_SHORT 0x20000000 /* Section with short addressing. */ +#define SHF_PARISC_HUGE 0x40000000 /* Section far from gp. */ +#define SHF_PARISC_SBP 0x80000000 /* Static branch prediction code. */ + +/* Legal values for ST_TYPE subfield of st_info (symbol type). */ + +#define STT_PARISC_MILLICODE 13 /* Millicode function entry point. */ + +#define STT_HP_OPAQUE (STT_LOOS + 0x1) +#define STT_HP_STUB (STT_LOOS + 0x2) + +/* HPPA relocs. */ + +#define R_PARISC_NONE 0 /* No reloc. */ +#define R_PARISC_DIR32 1 /* Direct 32-bit reference. */ +#define R_PARISC_DIR21L 2 /* Left 21 bits of eff. address. */ +#define R_PARISC_DIR17R 3 /* Right 17 bits of eff. address. */ +#define R_PARISC_DIR14R 4 /* Right 14 bits of eff. address. */ +#define R_PARISC_PCREL21L 5 /* PC-relative, left 21 bits. */ +#define R_PARISC_PCREL14R 6 /* PC-relative, right 14 bits. */ +#define R_PARISC_PCREL17C 7 /* Conditional PC-relative, ignore + if displacement > 17bits. */ +#define R_PARISC_PCREL17F 8 /* Conditional PC-relative, must + fit in 17bits. */ +#define R_PARISC_DPREL21L 9 /* DP-relative, left 21 bits. */ +#define R_PARISC_DPREL14R 10 /* DP-relative, right 14 bits. */ +#define R_PARISC_DPREL14F 11 /* DP-relative, must bit in 14 bits. */ +#define R_PARISC_DLTREL21L 12 /* DLT-relative, left 21 bits. */ +#define R_PARISC_DLTREL14R 13 /* DLT-relative, right 14 bits. */ +#define R_PARISC_DLTREL14F 14 /* DLT-relative, must fit in 14 bits.*/ +#define R_PARISC_DLTIND21L 15 /* DLT-relative indirect, left + 21 bits. */ +#define R_PARISC_DLTIND14R 16 /* DLT-relative indirect, right + 14 bits. */ +#define R_PARISC_DLTIND14F 17 /* DLT-relative indirect, must fit + int 14 bits. */ +#define R_PARISC_PLABEL32 18 /* Direct 32-bit reference to proc. */ + +/* Alpha specific definitions. */ + +/* Legal values for e_flags field of Elf64_Ehdr. */ + +#define EF_ALPHA_32BIT 1 /* All addresses must be < 2GB. */ +#define EF_ALPHA_CANRELAX 2 /* Relocations for relaxing exist. */ + +/* Legal values for sh_type field of Elf64_Shdr. */ + +/* These two are primerily concerned with ECOFF debugging info. */ +#define SHT_ALPHA_DEBUG 0x70000001 +#define SHT_ALPHA_REGINFO 0x70000002 + +/* Legal values for sh_flags field of Elf64_Shdr. */ + +#define SHF_ALPHA_GPREL 0x10000000 + +/* Legal values for st_other field of Elf64_Sym. */ +#define STO_ALPHA_NOPV 0x80 /* No PV required. */ +#define STO_ALPHA_STD_GPLOAD 0x88 /* PV only used for initial ldgp. */ + +/* Alpha relocs. */ + +#define R_ALPHA_NONE 0 /* No reloc */ +#define R_ALPHA_REFLONG 1 /* Direct 32 bit */ +#define R_ALPHA_REFQUAD 2 /* Direct 64 bit */ +#define R_ALPHA_GPREL32 3 /* GP relative 32 bit */ +#define R_ALPHA_LITERAL 4 /* GP relative 16 bit w/optimization */ +#define R_ALPHA_LITUSE 5 /* Optimization hint for LITERAL */ +#define R_ALPHA_GPDISP 6 /* Add displacement to GP */ +#define R_ALPHA_BRADDR 7 /* PC+4 relative 23 bit shifted */ +#define R_ALPHA_HINT 8 /* PC+4 relative 16 bit shifted */ +#define R_ALPHA_SREL16 9 /* PC relative 16 bit */ +#define R_ALPHA_SREL32 10 /* PC relative 32 bit */ +#define R_ALPHA_SREL64 11 /* PC relative 64 bit */ +#define R_ALPHA_OP_PUSH 12 /* OP stack push */ +#define R_ALPHA_OP_STORE 13 /* OP stack pop and store */ +#define R_ALPHA_OP_PSUB 14 /* OP stack subtract */ +#define R_ALPHA_OP_PRSHIFT 15 /* OP stack right shift */ +#define R_ALPHA_GPVALUE 16 +#define R_ALPHA_GPRELHIGH 17 +#define R_ALPHA_GPRELLOW 18 +#define R_ALPHA_IMMED_GP_16 19 +#define R_ALPHA_IMMED_GP_HI32 20 +#define R_ALPHA_IMMED_SCN_HI32 21 +#define R_ALPHA_IMMED_BR_HI32 22 +#define R_ALPHA_IMMED_LO32 23 +#define R_ALPHA_COPY 24 /* Copy symbol at runtime */ +#define R_ALPHA_GLOB_DAT 25 /* Create GOT entry */ +#define R_ALPHA_JMP_SLOT 26 /* Create PLT entry */ +#define R_ALPHA_RELATIVE 27 /* Adjust by program base */ +#define R_ALPHA_TLS_GD_HI 28 +#define R_ALPHA_TLSGD 29 +#define R_ALPHA_TLS_LDM 30 +#define R_ALPHA_DTPMOD64 31 +#define R_ALPHA_GOTDTPREL 32 +#define R_ALPHA_DTPREL64 33 +#define R_ALPHA_DTPRELHI 34 +#define R_ALPHA_DTPRELLO 35 +#define R_ALPHA_DTPREL16 36 +#define R_ALPHA_GOTTPREL 37 +#define R_ALPHA_TPREL64 38 +#define R_ALPHA_TPRELHI 39 +#define R_ALPHA_TPRELLO 40 +#define R_ALPHA_TPREL16 41 +/* Keep this the last entry. */ +#define R_ALPHA_NUM 46 + +/* Magic values of the LITUSE relocation addend. */ +#define LITUSE_ALPHA_ADDR 0 +#define LITUSE_ALPHA_BASE 1 +#define LITUSE_ALPHA_BYTOFF 2 +#define LITUSE_ALPHA_JSR 3 +#define LITUSE_ALPHA_TLS_GD 4 +#define LITUSE_ALPHA_TLS_LDM 5 + + +/* PowerPC specific declarations */ + +/* Values for Elf32/64_Ehdr.e_flags. */ +#define EF_PPC_EMB 0x80000000 /* PowerPC embedded flag */ + +/* Cygnus local bits below */ +#define EF_PPC_RELOCATABLE 0x00010000 /* PowerPC -mrelocatable flag*/ +#define EF_PPC_RELOCATABLE_LIB 0x00008000 /* PowerPC -mrelocatable-lib + flag */ + +/* PowerPC relocations defined by the ABIs */ +#define R_PPC_NONE 0 +#define R_PPC_ADDR32 1 /* 32bit absolute address */ +#define R_PPC_ADDR24 2 /* 26bit address, 2 bits ignored. */ +#define R_PPC_ADDR16 3 /* 16bit absolute address */ +#define R_PPC_ADDR16_LO 4 /* lower 16bit of absolute address */ +#define R_PPC_ADDR16_HI 5 /* high 16bit of absolute address */ +#define R_PPC_ADDR16_HA 6 /* adjusted high 16bit */ +#define R_PPC_ADDR14 7 /* 16bit address, 2 bits ignored */ +#define R_PPC_ADDR14_BRTAKEN 8 +#define R_PPC_ADDR14_BRNTAKEN 9 +#define R_PPC_REL24 10 /* PC relative 26 bit */ +#define R_PPC_REL14 11 /* PC relative 16 bit */ +#define R_PPC_REL14_BRTAKEN 12 +#define R_PPC_REL14_BRNTAKEN 13 +#define R_PPC_GOT16 14 +#define R_PPC_GOT16_LO 15 +#define R_PPC_GOT16_HI 16 +#define R_PPC_GOT16_HA 17 +#define R_PPC_PLTREL24 18 +#define R_PPC_COPY 19 +#define R_PPC_GLOB_DAT 20 +#define R_PPC_JMP_SLOT 21 +#define R_PPC_RELATIVE 22 +#define R_PPC_LOCAL24PC 23 +#define R_PPC_UADDR32 24 +#define R_PPC_UADDR16 25 +#define R_PPC_REL32 26 +#define R_PPC_PLT32 27 +#define R_PPC_PLTREL32 28 +#define R_PPC_PLT16_LO 29 +#define R_PPC_PLT16_HI 30 +#define R_PPC_PLT16_HA 31 +#define R_PPC_SDAREL16 32 +#define R_PPC_SECTOFF 33 +#define R_PPC_SECTOFF_LO 34 +#define R_PPC_SECTOFF_HI 35 +#define R_PPC_SECTOFF_HA 36 + +/* PowerPC relocations defined for the TLS access ABI. */ +#define R_PPC_TLS 67 /* none (sym+add)@tls */ +#define R_PPC_DTPMOD32 68 /* word32 (sym+add)@dtpmod */ +#define R_PPC_TPREL16 69 /* half16* (sym+add)@tprel */ +#define R_PPC_TPREL16_LO 70 /* half16 (sym+add)@tprel@l */ +#define R_PPC_TPREL16_HI 71 /* half16 (sym+add)@tprel@h */ +#define R_PPC_TPREL16_HA 72 /* half16 (sym+add)@tprel@ha */ +#define R_PPC_TPREL32 73 /* word32 (sym+add)@tprel */ +#define R_PPC_DTPREL16 74 /* half16* (sym+add)@dtprel */ +#define R_PPC_DTPREL16_LO 75 /* half16 (sym+add)@dtprel@l */ +#define R_PPC_DTPREL16_HI 76 /* half16 (sym+add)@dtprel@h */ +#define R_PPC_DTPREL16_HA 77 /* half16 (sym+add)@dtprel@ha */ +#define R_PPC_DTPREL32 78 /* word32 (sym+add)@dtprel */ +#define R_PPC_GOT_TLSGD16 79 /* half16* (sym+add)@got@tlsgd */ +#define R_PPC_GOT_TLSGD16_LO 80 /* half16 (sym+add)@got@tlsgd@l */ +#define R_PPC_GOT_TLSGD16_HI 81 /* half16 (sym+add)@got@tlsgd@h */ +#define R_PPC_GOT_TLSGD16_HA 82 /* half16 (sym+add)@got@tlsgd@ha */ +#define R_PPC_GOT_TLSLD16 83 /* half16* (sym+add)@got@tlsld */ +#define R_PPC_GOT_TLSLD16_LO 84 /* half16 (sym+add)@got@tlsld@l */ +#define R_PPC_GOT_TLSLD16_HI 85 /* half16 (sym+add)@got@tlsld@h */ +#define R_PPC_GOT_TLSLD16_HA 86 /* half16 (sym+add)@got@tlsld@ha */ +#define R_PPC_GOT_TPREL16 87 /* half16* (sym+add)@got@tprel */ +#define R_PPC_GOT_TPREL16_LO 88 /* half16 (sym+add)@got@tprel@l */ +#define R_PPC_GOT_TPREL16_HI 89 /* half16 (sym+add)@got@tprel@h */ +#define R_PPC_GOT_TPREL16_HA 90 /* half16 (sym+add)@got@tprel@ha */ +#define R_PPC_GOT_DTPREL16 91 /* half16* (sym+add)@got@dtprel */ +#define R_PPC_GOT_DTPREL16_LO 92 /* half16* (sym+add)@got@dtprel@l */ +#define R_PPC_GOT_DTPREL16_HI 93 /* half16* (sym+add)@got@dtprel@h */ +#define R_PPC_GOT_DTPREL16_HA 94 /* half16* (sym+add)@got@dtprel@ha */ + +/* Keep this the last entry. */ +#define R_PPC_NUM 95 + +/* The remaining relocs are from the Embedded ELF ABI, and are not + in the SVR4 ELF ABI. */ +#define R_PPC_EMB_NADDR32 101 +#define R_PPC_EMB_NADDR16 102 +#define R_PPC_EMB_NADDR16_LO 103 +#define R_PPC_EMB_NADDR16_HI 104 +#define R_PPC_EMB_NADDR16_HA 105 +#define R_PPC_EMB_SDAI16 106 +#define R_PPC_EMB_SDA2I16 107 +#define R_PPC_EMB_SDA2REL 108 +#define R_PPC_EMB_SDA21 109 /* 16 bit offset in SDA */ +#define R_PPC_EMB_MRKREF 110 +#define R_PPC_EMB_RELSEC16 111 +#define R_PPC_EMB_RELST_LO 112 +#define R_PPC_EMB_RELST_HI 113 +#define R_PPC_EMB_RELST_HA 114 +#define R_PPC_EMB_BIT_FLD 115 +#define R_PPC_EMB_RELSDA 116 /* 16 bit relative offset in SDA */ + +/* Diab tool relocations. */ +#define R_PPC_DIAB_SDA21_LO 180 /* like EMB_SDA21, but lower 16 bit */ +#define R_PPC_DIAB_SDA21_HI 181 /* like EMB_SDA21, but high 16 bit */ +#define R_PPC_DIAB_SDA21_HA 182 /* like EMB_SDA21, adjusted high 16 */ +#define R_PPC_DIAB_RELSDA_LO 183 /* like EMB_RELSDA, but lower 16 bit */ +#define R_PPC_DIAB_RELSDA_HI 184 /* like EMB_RELSDA, but high 16 bit */ +#define R_PPC_DIAB_RELSDA_HA 185 /* like EMB_RELSDA, adjusted high 16 */ + +/* This is a phony reloc to handle any old fashioned TOC16 references + that may still be in object files. */ +#define R_PPC_TOC16 255 + + +/* PowerPC64 relocations defined by the ABIs */ +#define R_PPC64_NONE R_PPC_NONE +#define R_PPC64_ADDR32 R_PPC_ADDR32 /* 32bit absolute address */ +#define R_PPC64_ADDR24 R_PPC_ADDR24 /* 26bit address, word aligned */ +#define R_PPC64_ADDR16 R_PPC_ADDR16 /* 16bit absolute address */ +#define R_PPC64_ADDR16_LO R_PPC_ADDR16_LO /* lower 16bits of address */ +#define R_PPC64_ADDR16_HI R_PPC_ADDR16_HI /* high 16bits of address. */ +#define R_PPC64_ADDR16_HA R_PPC_ADDR16_HA /* adjusted high 16bits. */ +#define R_PPC64_ADDR14 R_PPC_ADDR14 /* 16bit address, word aligned */ +#define R_PPC64_ADDR14_BRTAKEN R_PPC_ADDR14_BRTAKEN +#define R_PPC64_ADDR14_BRNTAKEN R_PPC_ADDR14_BRNTAKEN +#define R_PPC64_REL24 R_PPC_REL24 /* PC-rel. 26 bit, word aligned */ +#define R_PPC64_REL14 R_PPC_REL14 /* PC relative 16 bit */ +#define R_PPC64_REL14_BRTAKEN R_PPC_REL14_BRTAKEN +#define R_PPC64_REL14_BRNTAKEN R_PPC_REL14_BRNTAKEN +#define R_PPC64_GOT16 R_PPC_GOT16 +#define R_PPC64_GOT16_LO R_PPC_GOT16_LO +#define R_PPC64_GOT16_HI R_PPC_GOT16_HI +#define R_PPC64_GOT16_HA R_PPC_GOT16_HA + +#define R_PPC64_COPY R_PPC_COPY +#define R_PPC64_GLOB_DAT R_PPC_GLOB_DAT +#define R_PPC64_JMP_SLOT R_PPC_JMP_SLOT +#define R_PPC64_RELATIVE R_PPC_RELATIVE + +#define R_PPC64_UADDR32 R_PPC_UADDR32 +#define R_PPC64_UADDR16 R_PPC_UADDR16 +#define R_PPC64_REL32 R_PPC_REL32 +#define R_PPC64_PLT32 R_PPC_PLT32 +#define R_PPC64_PLTREL32 R_PPC_PLTREL32 +#define R_PPC64_PLT16_LO R_PPC_PLT16_LO +#define R_PPC64_PLT16_HI R_PPC_PLT16_HI +#define R_PPC64_PLT16_HA R_PPC_PLT16_HA + +#define R_PPC64_SECTOFF R_PPC_SECTOFF +#define R_PPC64_SECTOFF_LO R_PPC_SECTOFF_LO +#define R_PPC64_SECTOFF_HI R_PPC_SECTOFF_HI +#define R_PPC64_SECTOFF_HA R_PPC_SECTOFF_HA +#define R_PPC64_ADDR30 37 /* word30 (S + A - P) >> 2 */ +#define R_PPC64_ADDR64 38 /* doubleword64 S + A */ +#define R_PPC64_ADDR16_HIGHER 39 /* half16 #higher(S + A) */ +#define R_PPC64_ADDR16_HIGHERA 40 /* half16 #highera(S + A) */ +#define R_PPC64_ADDR16_HIGHEST 41 /* half16 #highest(S + A) */ +#define R_PPC64_ADDR16_HIGHESTA 42 /* half16 #highesta(S + A) */ +#define R_PPC64_UADDR64 43 /* doubleword64 S + A */ +#define R_PPC64_REL64 44 /* doubleword64 S + A - P */ +#define R_PPC64_PLT64 45 /* doubleword64 L + A */ +#define R_PPC64_PLTREL64 46 /* doubleword64 L + A - P */ +#define R_PPC64_TOC16 47 /* half16* S + A - .TOC */ +#define R_PPC64_TOC16_LO 48 /* half16 #lo(S + A - .TOC.) */ +#define R_PPC64_TOC16_HI 49 /* half16 #hi(S + A - .TOC.) */ +#define R_PPC64_TOC16_HA 50 /* half16 #ha(S + A - .TOC.) */ +#define R_PPC64_TOC 51 /* doubleword64 .TOC */ +#define R_PPC64_PLTGOT16 52 /* half16* M + A */ +#define R_PPC64_PLTGOT16_LO 53 /* half16 #lo(M + A) */ +#define R_PPC64_PLTGOT16_HI 54 /* half16 #hi(M + A) */ +#define R_PPC64_PLTGOT16_HA 55 /* half16 #ha(M + A) */ + +#define R_PPC64_ADDR16_DS 56 /* half16ds* (S + A) >> 2 */ +#define R_PPC64_ADDR16_LO_DS 57 /* half16ds #lo(S + A) >> 2 */ +#define R_PPC64_GOT16_DS 58 /* half16ds* (G + A) >> 2 */ +#define R_PPC64_GOT16_LO_DS 59 /* half16ds #lo(G + A) >> 2 */ +#define R_PPC64_PLT16_LO_DS 60 /* half16ds #lo(L + A) >> 2 */ +#define R_PPC64_SECTOFF_DS 61 /* half16ds* (R + A) >> 2 */ +#define R_PPC64_SECTOFF_LO_DS 62 /* half16ds #lo(R + A) >> 2 */ +#define R_PPC64_TOC16_DS 63 /* half16ds* (S + A - .TOC.) >> 2 */ +#define R_PPC64_TOC16_LO_DS 64 /* half16ds #lo(S + A - .TOC.) >> 2 */ +#define R_PPC64_PLTGOT16_DS 65 /* half16ds* (M + A) >> 2 */ +#define R_PPC64_PLTGOT16_LO_DS 66 /* half16ds #lo(M + A) >> 2 */ + +/* PowerPC64 relocations defined for the TLS access ABI. */ +#define R_PPC64_TLS 67 /* none (sym+add)@tls */ +#define R_PPC64_DTPMOD64 68 /* doubleword64 (sym+add)@dtpmod */ +#define R_PPC64_TPREL16 69 /* half16* (sym+add)@tprel */ +#define R_PPC64_TPREL16_LO 70 /* half16 (sym+add)@tprel@l */ +#define R_PPC64_TPREL16_HI 71 /* half16 (sym+add)@tprel@h */ +#define R_PPC64_TPREL16_HA 72 /* half16 (sym+add)@tprel@ha */ +#define R_PPC64_TPREL64 73 /* doubleword64 (sym+add)@tprel */ +#define R_PPC64_DTPREL16 74 /* half16* (sym+add)@dtprel */ +#define R_PPC64_DTPREL16_LO 75 /* half16 (sym+add)@dtprel@l */ +#define R_PPC64_DTPREL16_HI 76 /* half16 (sym+add)@dtprel@h */ +#define R_PPC64_DTPREL16_HA 77 /* half16 (sym+add)@dtprel@ha */ +#define R_PPC64_DTPREL64 78 /* doubleword64 (sym+add)@dtprel */ +#define R_PPC64_GOT_TLSGD16 79 /* half16* (sym+add)@got@tlsgd */ +#define R_PPC64_GOT_TLSGD16_LO 80 /* half16 (sym+add)@got@tlsgd@l */ +#define R_PPC64_GOT_TLSGD16_HI 81 /* half16 (sym+add)@got@tlsgd@h */ +#define R_PPC64_GOT_TLSGD16_HA 82 /* half16 (sym+add)@got@tlsgd@ha */ +#define R_PPC64_GOT_TLSLD16 83 /* half16* (sym+add)@got@tlsld */ +#define R_PPC64_GOT_TLSLD16_LO 84 /* half16 (sym+add)@got@tlsld@l */ +#define R_PPC64_GOT_TLSLD16_HI 85 /* half16 (sym+add)@got@tlsld@h */ +#define R_PPC64_GOT_TLSLD16_HA 86 /* half16 (sym+add)@got@tlsld@ha */ +#define R_PPC64_GOT_TPREL16_DS 87 /* half16ds* (sym+add)@got@tprel */ +#define R_PPC64_GOT_TPREL16_LO_DS 88 /* half16ds (sym+add)@got@tprel@l */ +#define R_PPC64_GOT_TPREL16_HI 89 /* half16 (sym+add)@got@tprel@h */ +#define R_PPC64_GOT_TPREL16_HA 90 /* half16 (sym+add)@got@tprel@ha */ +#define R_PPC64_GOT_DTPREL16_DS 91 /* half16ds* (sym+add)@got@dtprel */ +#define R_PPC64_GOT_DTPREL16_LO_DS 92 /* half16ds (sym+add)@got@dtprel@l */ +#define R_PPC64_GOT_DTPREL16_HI 93 /* half16 (sym+add)@got@dtprel@h */ +#define R_PPC64_GOT_DTPREL16_HA 94 /* half16 (sym+add)@got@dtprel@ha */ +#define R_PPC64_TPREL16_DS 95 /* half16ds* (sym+add)@tprel */ +#define R_PPC64_TPREL16_LO_DS 96 /* half16ds (sym+add)@tprel@l */ +#define R_PPC64_TPREL16_HIGHER 97 /* half16 (sym+add)@tprel@higher */ +#define R_PPC64_TPREL16_HIGHERA 98 /* half16 (sym+add)@tprel@highera */ +#define R_PPC64_TPREL16_HIGHEST 99 /* half16 (sym+add)@tprel@highest */ +#define R_PPC64_TPREL16_HIGHESTA 100 /* half16 (sym+add)@tprel@highesta */ +#define R_PPC64_DTPREL16_DS 101 /* half16ds* (sym+add)@dtprel */ +#define R_PPC64_DTPREL16_LO_DS 102 /* half16ds (sym+add)@dtprel@l */ +#define R_PPC64_DTPREL16_HIGHER 103 /* half16 (sym+add)@dtprel@higher */ +#define R_PPC64_DTPREL16_HIGHERA 104 /* half16 (sym+add)@dtprel@highera */ +#define R_PPC64_DTPREL16_HIGHEST 105 /* half16 (sym+add)@dtprel@highest */ +#define R_PPC64_DTPREL16_HIGHESTA 106 /* half16 (sym+add)@dtprel@highesta */ + +/* Keep this the last entry. */ +#define R_PPC64_NUM 107 + +/* PowerPC64 specific values for the Dyn d_tag field. */ +#define DT_PPC64_GLINK (DT_LOPROC + 0) +#define DT_PPC64_NUM 1 + + +/* ARM specific declarations */ + +/* Processor specific flags for the ELF header e_flags field. */ +#define EF_ARM_RELEXEC 0x01 +#define EF_ARM_HASENTRY 0x02 +#define EF_ARM_INTERWORK 0x04 +#define EF_ARM_APCS_26 0x08 +#define EF_ARM_APCS_FLOAT 0x10 +#define EF_ARM_PIC 0x20 +#define EF_ARM_ALIGN8 0x40 /* 8-bit structure alignment is in use */ +#define EF_ARM_NEW_ABI 0x80 +#define EF_ARM_OLD_ABI 0x100 + +/* Other constants defined in the ARM ELF spec. version B-01. */ +/* NB. These conflict with values defined above. */ +#define EF_ARM_SYMSARESORTED 0x04 +#define EF_ARM_DYNSYMSUSESEGIDX 0x08 +#define EF_ARM_MAPSYMSFIRST 0x10 +#define EF_ARM_EABIMASK 0XFF000000 + +#define EF_ARM_EABI_VERSION(flags) ((flags) & EF_ARM_EABIMASK) +#define EF_ARM_EABI_UNKNOWN 0x00000000 +#define EF_ARM_EABI_VER1 0x01000000 +#define EF_ARM_EABI_VER2 0x02000000 + +/* Additional symbol types for Thumb */ +#define STT_ARM_TFUNC 0xd + +/* ARM-specific values for sh_flags */ +#define SHF_ARM_ENTRYSECT 0x10000000 /* Section contains an entry point */ +#define SHF_ARM_COMDEF 0x80000000 /* Section may be multiply defined + in the input to a link step */ + +/* ARM-specific program header flags */ +#define PF_ARM_SB 0x10000000 /* Segment contains the location + addressed by the static base */ + +/* ARM relocs. */ +#define R_ARM_NONE 0 /* No reloc */ +#define R_ARM_PC24 1 /* PC relative 26 bit branch */ +#define R_ARM_ABS32 2 /* Direct 32 bit */ +#define R_ARM_REL32 3 /* PC relative 32 bit */ +#define R_ARM_PC13 4 +#define R_ARM_ABS16 5 /* Direct 16 bit */ +#define R_ARM_ABS12 6 /* Direct 12 bit */ +#define R_ARM_THM_ABS5 7 +#define R_ARM_ABS8 8 /* Direct 8 bit */ +#define R_ARM_SBREL32 9 +#define R_ARM_THM_PC22 10 +#define R_ARM_THM_PC8 11 +#define R_ARM_AMP_VCALL9 12 +#define R_ARM_SWI24 13 +#define R_ARM_THM_SWI8 14 +#define R_ARM_XPC25 15 +#define R_ARM_THM_XPC22 16 +#define R_ARM_COPY 20 /* Copy symbol at runtime */ +#define R_ARM_GLOB_DAT 21 /* Create GOT entry */ +#define R_ARM_JUMP_SLOT 22 /* Create PLT entry */ +#define R_ARM_RELATIVE 23 /* Adjust by program base */ +#define R_ARM_GOTOFF 24 /* 32 bit offset to GOT */ +#define R_ARM_GOTPC 25 /* 32 bit PC relative offset to GOT */ +#define R_ARM_GOT32 26 /* 32 bit GOT entry */ +#define R_ARM_PLT32 27 /* 32 bit PLT address */ +#define R_ARM_ALU_PCREL_7_0 32 +#define R_ARM_ALU_PCREL_15_8 33 +#define R_ARM_ALU_PCREL_23_15 34 +#define R_ARM_LDR_SBREL_11_0 35 +#define R_ARM_ALU_SBREL_19_12 36 +#define R_ARM_ALU_SBREL_27_20 37 +#define R_ARM_GNU_VTENTRY 100 +#define R_ARM_GNU_VTINHERIT 101 +#define R_ARM_THM_PC11 102 /* thumb unconditional branch */ +#define R_ARM_THM_PC9 103 /* thumb conditional branch */ +#define R_ARM_RXPC25 249 +#define R_ARM_RSBREL32 250 +#define R_ARM_THM_RPC22 251 +#define R_ARM_RREL32 252 +#define R_ARM_RABS22 253 +#define R_ARM_RPC24 254 +#define R_ARM_RBASE 255 +/* Keep this the last entry. */ +#define R_ARM_NUM 256 + +/* IA-64 specific declarations. */ + +/* Processor specific flags for the Ehdr e_flags field. */ +#define EF_IA_64_MASKOS 0x0000000f /* os-specific flags */ +#define EF_IA_64_ABI64 0x00000010 /* 64-bit ABI */ +#define EF_IA_64_ARCH 0xff000000 /* arch. version mask */ + +/* Processor specific values for the Phdr p_type field. */ +#define PT_IA_64_ARCHEXT (PT_LOPROC + 0) /* arch extension bits */ +#define PT_IA_64_UNWIND (PT_LOPROC + 1) /* ia64 unwind bits */ + +/* Processor specific flags for the Phdr p_flags field. */ +#define PF_IA_64_NORECOV 0x80000000 /* spec insns w/o recovery */ + +/* Processor specific values for the Shdr sh_type field. */ +#define SHT_IA_64_EXT (SHT_LOPROC + 0) /* extension bits */ +#define SHT_IA_64_UNWIND (SHT_LOPROC + 1) /* unwind bits */ + +/* Processor specific flags for the Shdr sh_flags field. */ +#define SHF_IA_64_SHORT 0x10000000 /* section near gp */ +#define SHF_IA_64_NORECOV 0x20000000 /* spec insns w/o recovery */ + +/* Processor specific values for the Dyn d_tag field. */ +#define DT_IA_64_PLT_RESERVE (DT_LOPROC + 0) +#define DT_IA_64_NUM 1 + +/* IA-64 relocations. */ +#define R_IA64_NONE 0x00 /* none */ +#define R_IA64_IMM14 0x21 /* symbol + addend, add imm14 */ +#define R_IA64_IMM22 0x22 /* symbol + addend, add imm22 */ +#define R_IA64_IMM64 0x23 /* symbol + addend, mov imm64 */ +#define R_IA64_DIR32MSB 0x24 /* symbol + addend, data4 MSB */ +#define R_IA64_DIR32LSB 0x25 /* symbol + addend, data4 LSB */ +#define R_IA64_DIR64MSB 0x26 /* symbol + addend, data8 MSB */ +#define R_IA64_DIR64LSB 0x27 /* symbol + addend, data8 LSB */ +#define R_IA64_GPREL22 0x2a /* @gprel(sym + add), add imm22 */ +#define R_IA64_GPREL64I 0x2b /* @gprel(sym + add), mov imm64 */ +#define R_IA64_GPREL32MSB 0x2c /* @gprel(sym + add), data4 MSB */ +#define R_IA64_GPREL32LSB 0x2d /* @gprel(sym + add), data4 LSB */ +#define R_IA64_GPREL64MSB 0x2e /* @gprel(sym + add), data8 MSB */ +#define R_IA64_GPREL64LSB 0x2f /* @gprel(sym + add), data8 LSB */ +#define R_IA64_LTOFF22 0x32 /* @ltoff(sym + add), add imm22 */ +#define R_IA64_LTOFF64I 0x33 /* @ltoff(sym + add), mov imm64 */ +#define R_IA64_PLTOFF22 0x3a /* @pltoff(sym + add), add imm22 */ +#define R_IA64_PLTOFF64I 0x3b /* @pltoff(sym + add), mov imm64 */ +#define R_IA64_PLTOFF64MSB 0x3e /* @pltoff(sym + add), data8 MSB */ +#define R_IA64_PLTOFF64LSB 0x3f /* @pltoff(sym + add), data8 LSB */ +#define R_IA64_FPTR64I 0x43 /* @fptr(sym + add), mov imm64 */ +#define R_IA64_FPTR32MSB 0x44 /* @fptr(sym + add), data4 MSB */ +#define R_IA64_FPTR32LSB 0x45 /* @fptr(sym + add), data4 LSB */ +#define R_IA64_FPTR64MSB 0x46 /* @fptr(sym + add), data8 MSB */ +#define R_IA64_FPTR64LSB 0x47 /* @fptr(sym + add), data8 LSB */ +#define R_IA64_PCREL60B 0x48 /* @pcrel(sym + add), brl */ +#define R_IA64_PCREL21B 0x49 /* @pcrel(sym + add), ptb, call */ +#define R_IA64_PCREL21M 0x4a /* @pcrel(sym + add), chk.s */ +#define R_IA64_PCREL21F 0x4b /* @pcrel(sym + add), fchkf */ +#define R_IA64_PCREL32MSB 0x4c /* @pcrel(sym + add), data4 MSB */ +#define R_IA64_PCREL32LSB 0x4d /* @pcrel(sym + add), data4 LSB */ +#define R_IA64_PCREL64MSB 0x4e /* @pcrel(sym + add), data8 MSB */ +#define R_IA64_PCREL64LSB 0x4f /* @pcrel(sym + add), data8 LSB */ +#define R_IA64_LTOFF_FPTR22 0x52 /* @ltoff(@fptr(s+a)), imm22 */ +#define R_IA64_LTOFF_FPTR64I 0x53 /* @ltoff(@fptr(s+a)), imm64 */ +#define R_IA64_LTOFF_FPTR32MSB 0x54 /* @ltoff(@fptr(s+a)), data4 MSB */ +#define R_IA64_LTOFF_FPTR32LSB 0x55 /* @ltoff(@fptr(s+a)), data4 LSB */ +#define R_IA64_LTOFF_FPTR64MSB 0x56 /* @ltoff(@fptr(s+a)), data8 MSB */ +#define R_IA64_LTOFF_FPTR64LSB 0x57 /* @ltoff(@fptr(s+a)), data8 LSB */ +#define R_IA64_SEGREL32MSB 0x5c /* @segrel(sym + add), data4 MSB */ +#define R_IA64_SEGREL32LSB 0x5d /* @segrel(sym + add), data4 LSB */ +#define R_IA64_SEGREL64MSB 0x5e /* @segrel(sym + add), data8 MSB */ +#define R_IA64_SEGREL64LSB 0x5f /* @segrel(sym + add), data8 LSB */ +#define R_IA64_SECREL32MSB 0x64 /* @secrel(sym + add), data4 MSB */ +#define R_IA64_SECREL32LSB 0x65 /* @secrel(sym + add), data4 LSB */ +#define R_IA64_SECREL64MSB 0x66 /* @secrel(sym + add), data8 MSB */ +#define R_IA64_SECREL64LSB 0x67 /* @secrel(sym + add), data8 LSB */ +#define R_IA64_REL32MSB 0x6c /* data 4 + REL */ +#define R_IA64_REL32LSB 0x6d /* data 4 + REL */ +#define R_IA64_REL64MSB 0x6e /* data 8 + REL */ +#define R_IA64_REL64LSB 0x6f /* data 8 + REL */ +#define R_IA64_LTV32MSB 0x74 /* symbol + addend, data4 MSB */ +#define R_IA64_LTV32LSB 0x75 /* symbol + addend, data4 LSB */ +#define R_IA64_LTV64MSB 0x76 /* symbol + addend, data8 MSB */ +#define R_IA64_LTV64LSB 0x77 /* symbol + addend, data8 LSB */ +#define R_IA64_PCREL21BI 0x79 /* @pcrel(sym + add), 21bit inst */ +#define R_IA64_PCREL22 0x7a /* @pcrel(sym + add), 22bit inst */ +#define R_IA64_PCREL64I 0x7b /* @pcrel(sym + add), 64bit inst */ +#define R_IA64_IPLTMSB 0x80 /* dynamic reloc, imported PLT, MSB */ +#define R_IA64_IPLTLSB 0x81 /* dynamic reloc, imported PLT, LSB */ +#define R_IA64_COPY 0x84 /* copy relocation */ +#define R_IA64_SUB 0x85 /* Addend and symbol difference */ +#define R_IA64_LTOFF22X 0x86 /* LTOFF22, relaxable. */ +#define R_IA64_LDXMOV 0x87 /* Use of LTOFF22X. */ +#define R_IA64_TPREL14 0x91 /* @tprel(sym + add), imm14 */ +#define R_IA64_TPREL22 0x92 /* @tprel(sym + add), imm22 */ +#define R_IA64_TPREL64I 0x93 /* @tprel(sym + add), imm64 */ +#define R_IA64_TPREL64MSB 0x96 /* @tprel(sym + add), data8 MSB */ +#define R_IA64_TPREL64LSB 0x97 /* @tprel(sym + add), data8 LSB */ +#define R_IA64_LTOFF_TPREL22 0x9a /* @ltoff(@tprel(s+a)), imm2 */ +#define R_IA64_DTPMOD64MSB 0xa6 /* @dtpmod(sym + add), data8 MSB */ +#define R_IA64_DTPMOD64LSB 0xa7 /* @dtpmod(sym + add), data8 LSB */ +#define R_IA64_LTOFF_DTPMOD22 0xaa /* @ltoff(@dtpmod(sym + add)), imm22 */ +#define R_IA64_DTPREL14 0xb1 /* @dtprel(sym + add), imm14 */ +#define R_IA64_DTPREL22 0xb2 /* @dtprel(sym + add), imm22 */ +#define R_IA64_DTPREL64I 0xb3 /* @dtprel(sym + add), imm64 */ +#define R_IA64_DTPREL32MSB 0xb4 /* @dtprel(sym + add), data4 MSB */ +#define R_IA64_DTPREL32LSB 0xb5 /* @dtprel(sym + add), data4 LSB */ +#define R_IA64_DTPREL64MSB 0xb6 /* @dtprel(sym + add), data8 MSB */ +#define R_IA64_DTPREL64LSB 0xb7 /* @dtprel(sym + add), data8 LSB */ +#define R_IA64_LTOFF_DTPREL22 0xba /* @ltoff(@dtprel(s+a)), imm22 */ + +/* SH specific declarations */ + +/* SH relocs. */ +#define R_SH_NONE 0 +#define R_SH_DIR32 1 +#define R_SH_REL32 2 +#define R_SH_DIR8WPN 3 +#define R_SH_IND12W 4 +#define R_SH_DIR8WPL 5 +#define R_SH_DIR8WPZ 6 +#define R_SH_DIR8BP 7 +#define R_SH_DIR8W 8 +#define R_SH_DIR8L 9 +#define R_SH_SWITCH16 25 +#define R_SH_SWITCH32 26 +#define R_SH_USES 27 +#define R_SH_COUNT 28 +#define R_SH_ALIGN 29 +#define R_SH_CODE 30 +#define R_SH_DATA 31 +#define R_SH_LABEL 32 +#define R_SH_SWITCH8 33 +#define R_SH_GNU_VTINHERIT 34 +#define R_SH_GNU_VTENTRY 35 +#define R_SH_TLS_GD_32 144 +#define R_SH_TLS_LD_32 145 +#define R_SH_TLS_LDO_32 146 +#define R_SH_TLS_IE_32 147 +#define R_SH_TLS_LE_32 148 +#define R_SH_TLS_DTPMOD32 149 +#define R_SH_TLS_DTPOFF32 150 +#define R_SH_TLS_TPOFF32 151 +#define R_SH_GOT32 160 +#define R_SH_PLT32 161 +#define R_SH_COPY 162 +#define R_SH_GLOB_DAT 163 +#define R_SH_JMP_SLOT 164 +#define R_SH_RELATIVE 165 +#define R_SH_GOTOFF 166 +#define R_SH_GOTPC 167 +/* Keep this the last entry. */ +#define R_SH_NUM 256 + +/* Additional s390 relocs */ + +#define R_390_NONE 0 /* No reloc. */ +#define R_390_8 1 /* Direct 8 bit. */ +#define R_390_12 2 /* Direct 12 bit. */ +#define R_390_16 3 /* Direct 16 bit. */ +#define R_390_32 4 /* Direct 32 bit. */ +#define R_390_PC32 5 /* PC relative 32 bit. */ +#define R_390_GOT12 6 /* 12 bit GOT offset. */ +#define R_390_GOT32 7 /* 32 bit GOT offset. */ +#define R_390_PLT32 8 /* 32 bit PC relative PLT address. */ +#define R_390_COPY 9 /* Copy symbol at runtime. */ +#define R_390_GLOB_DAT 10 /* Create GOT entry. */ +#define R_390_JMP_SLOT 11 /* Create PLT entry. */ +#define R_390_RELATIVE 12 /* Adjust by program base. */ +#define R_390_GOTOFF32 13 /* 32 bit offset to GOT. */ +#define R_390_GOTPC 14 /* 32 bit PC relative offset to GOT. */ +#define R_390_GOT16 15 /* 16 bit GOT offset. */ +#define R_390_PC16 16 /* PC relative 16 bit. */ +#define R_390_PC16DBL 17 /* PC relative 16 bit shifted by 1. */ +#define R_390_PLT16DBL 18 /* 16 bit PC rel. PLT shifted by 1. */ +#define R_390_PC32DBL 19 /* PC relative 32 bit shifted by 1. */ +#define R_390_PLT32DBL 20 /* 32 bit PC rel. PLT shifted by 1. */ +#define R_390_GOTPCDBL 21 /* 32 bit PC rel. GOT shifted by 1. */ +#define R_390_64 22 /* Direct 64 bit. */ +#define R_390_PC64 23 /* PC relative 64 bit. */ +#define R_390_GOT64 24 /* 64 bit GOT offset. */ +#define R_390_PLT64 25 /* 64 bit PC relative PLT address. */ +#define R_390_GOTENT 26 /* 32 bit PC rel. to GOT entry >> 1. */ +#define R_390_GOTOFF16 27 /* 16 bit offset to GOT. */ +#define R_390_GOTOFF64 28 /* 64 bit offset to GOT. */ +#define R_390_GOTPLT12 29 /* 12 bit offset to jump slot. */ +#define R_390_GOTPLT16 30 /* 16 bit offset to jump slot. */ +#define R_390_GOTPLT32 31 /* 32 bit offset to jump slot. */ +#define R_390_GOTPLT64 32 /* 64 bit offset to jump slot. */ +#define R_390_GOTPLTENT 33 /* 32 bit rel. offset to jump slot. */ +#define R_390_PLTOFF16 34 /* 16 bit offset from GOT to PLT. */ +#define R_390_PLTOFF32 35 /* 32 bit offset from GOT to PLT. */ +#define R_390_PLTOFF64 36 /* 16 bit offset from GOT to PLT. */ +#define R_390_TLS_LOAD 37 /* Tag for load insn in TLS code. */ +#define R_390_TLS_GDCALL 38 /* Tag for function call in general + dynamic TLS code. */ +#define R_390_TLS_LDCALL 39 /* Tag for function call in local + dynamic TLS code. */ +#define R_390_TLS_GD32 40 /* Direct 32 bit for general dynamic + thread local data. */ +#define R_390_TLS_GD64 41 /* Direct 64 bit for general dynamic + thread local data. */ +#define R_390_TLS_GOTIE12 42 /* 12 bit GOT offset for static TLS + block offset. */ +#define R_390_TLS_GOTIE32 43 /* 32 bit GOT offset for static TLS + block offset. */ +#define R_390_TLS_GOTIE64 44 /* 64 bit GOT offset for static TLS + block offset. */ +#define R_390_TLS_LDM32 45 /* Direct 32 bit for local dynamic + thread local data in LE code. */ +#define R_390_TLS_LDM64 46 /* Direct 64 bit for local dynamic + thread local data in LE code. */ +#define R_390_TLS_IE32 47 /* 32 bit address of GOT entry for + negated static TLS block offset. */ +#define R_390_TLS_IE64 48 /* 64 bit address of GOT entry for + negated static TLS block offset. */ +#define R_390_TLS_IEENT 49 /* 32 bit rel. offset to GOT entry for + negated static TLS block offset. */ +#define R_390_TLS_LE32 50 /* 32 bit negated offset relative to + static TLS block. */ +#define R_390_TLS_LE64 51 /* 64 bit negated offset relative to + static TLS block. */ +#define R_390_TLS_LDO32 52 /* 32 bit offset relative to TLS + block. */ +#define R_390_TLS_LDO64 53 /* 64 bit offset relative to TLS + block. */ +#define R_390_TLS_DTPMOD 54 /* ID of module containing symbol. */ +#define R_390_TLS_DTPOFF 55 /* Offset in TLS block. */ +#define R_390_TLS_TPOFF 56 /* Negated offset in static TLS + block. */ + +/* Keep this the last entry. */ +#define R_390_NUM 57 + +/* CRIS relocations. */ +#define R_CRIS_NONE 0 +#define R_CRIS_8 1 +#define R_CRIS_16 2 +#define R_CRIS_32 3 +#define R_CRIS_8_PCREL 4 +#define R_CRIS_16_PCREL 5 +#define R_CRIS_32_PCREL 6 +#define R_CRIS_GNU_VTINHERIT 7 +#define R_CRIS_GNU_VTENTRY 8 +#define R_CRIS_COPY 9 +#define R_CRIS_GLOB_DAT 10 +#define R_CRIS_JUMP_SLOT 11 +#define R_CRIS_RELATIVE 12 +#define R_CRIS_16_GOT 13 +#define R_CRIS_32_GOT 14 +#define R_CRIS_16_GOTPLT 15 +#define R_CRIS_32_GOTPLT 16 +#define R_CRIS_32_GOTREL 17 +#define R_CRIS_32_PLT_GOTREL 18 +#define R_CRIS_32_PLT_PCREL 19 + +#define R_CRIS_NUM 20 + +/* AMD x86-64 relocations. */ +#define R_X86_64_NONE 0 /* No reloc */ +#define R_X86_64_64 1 /* Direct 64 bit */ +#define R_X86_64_PC32 2 /* PC relative 32 bit signed */ +#define R_X86_64_GOT32 3 /* 32 bit GOT entry */ +#define R_X86_64_PLT32 4 /* 32 bit PLT address */ +#define R_X86_64_COPY 5 /* Copy symbol at runtime */ +#define R_X86_64_GLOB_DAT 6 /* Create GOT entry */ +#define R_X86_64_JUMP_SLOT 7 /* Create PLT entry */ +#define R_X86_64_RELATIVE 8 /* Adjust by program base */ +#define R_X86_64_GOTPCREL 9 /* 32 bit signed PC relative + offset to GOT */ +#define R_X86_64_32 10 /* Direct 32 bit zero extended */ +#define R_X86_64_32S 11 /* Direct 32 bit sign extended */ +#define R_X86_64_16 12 /* Direct 16 bit zero extended */ +#define R_X86_64_PC16 13 /* 16 bit sign extended pc relative */ +#define R_X86_64_8 14 /* Direct 8 bit sign extended */ +#define R_X86_64_PC8 15 /* 8 bit sign extended pc relative */ +#define R_X86_64_DTPMOD64 16 /* ID of module containing symbol */ +#define R_X86_64_DTPOFF64 17 /* Offset in module's TLS block */ +#define R_X86_64_TPOFF64 18 /* Offset in initial TLS block */ +#define R_X86_64_TLSGD 19 /* 32 bit signed PC relative offset + to two GOT entries for GD symbol */ +#define R_X86_64_TLSLD 20 /* 32 bit signed PC relative offset + to two GOT entries for LD symbol */ +#define R_X86_64_DTPOFF32 21 /* Offset in TLS block */ +#define R_X86_64_GOTTPOFF 22 /* 32 bit signed PC relative offset + to GOT entry for IE symbol */ +#define R_X86_64_TPOFF32 23 /* Offset in initial TLS block */ + +#define R_X86_64_NUM 24 + +#endif /* elf.h */ diff --git a/include/x86/mb_header.h b/include/x86/mb_header.h new file mode 100644 index 00000000..9bf5e6c0 --- /dev/null +++ b/include/x86/mb_header.h @@ -0,0 +1,90 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2000 Free Software Foundation, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +/* + * MultiBoot Header description + */ + +struct multiboot_header +{ + /* Must be MULTIBOOT_MAGIC - see below. */ + uint32_t magic; + + /* Feature flags - see below. */ + uint32_t flags; + + /* + * Checksum + * + * The above fields plus this one must equal 0 mod 2^32. + */ + uint32_t checksum; + + /* These are only valid if MULTIBOOT_AOUT_KLUDGE is set. */ + uint32_t header_addr; + uint32_t load_addr; + uint32_t load_end_addr; + uint32_t bss_end_addr; + uint32_t entry_addr; + + /* These are only valid if MULTIBOOT_VIDEO_MODE is set. */ + uint32_t mode_type; + uint32_t width; + uint32_t height; + uint32_t depth; +}; + +/* + * The entire multiboot_header must be contained + * within the first MULTIBOOT_SEARCH bytes of the kernel image. + */ +#define MULTIBOOT_SEARCH 8192 +#define MULTIBOOT_FOUND(addr, len) \ + (! ((addr) & 0x3) \ + && (len) >= 12 \ + && *((int *) (addr)) == MULTIBOOT_MAGIC \ + && ! (*((uint32_t *) (addr)) + *((uint32_t *) (addr + 4)) \ + + *((uint32_t *) (addr + 8))) \ + && (! (MULTIBOOT_AOUT_KLUDGE & *((int *) (addr + 4))) || (len) >= 32) \ + && (! (MULTIBOOT_VIDEO_MODE & *((int *) (addr + 4))) || (len) >= 48)) + +/* Magic value identifying the multiboot_header. */ +#define MULTIBOOT_MAGIC 0x1BADB002 + +/* + * Features flags for 'flags'. + * If a boot loader sees a flag in MULTIBOOT_MUSTKNOW set + * and it doesn't understand it, it must fail. + */ +#define MULTIBOOT_MUSTKNOW 0x0000FFFF + +/* currently unsupported flags... this is a kind of version number. */ +#define MULTIBOOT_UNSUPPORTED 0x0000FFF8 + +/* Align all boot modules on i386 page (4KB) boundaries. */ +#define MULTIBOOT_PAGE_ALIGN 0x00000001 + +/* Must pass memory information to OS. */ +#define MULTIBOOT_MEMORY_INFO 0x00000002 + +/* Must pass video information to OS. */ +#define MULTIBOOT_VIDEO_MODE 0x00000004 + +/* This flag indicates the use of the address fields in the header. */ +#define MULTIBOOT_AOUT_KLUDGE 0x00010000 diff --git a/include/x86/mb_info.h b/include/x86/mb_info.h new file mode 100644 index 00000000..317bdfaa --- /dev/null +++ b/include/x86/mb_info.h @@ -0,0 +1,219 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2000 Free Software Foundation, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +/* + * The structure type "mod_list" is used by the "multiboot_info" structure. + */ + +struct mod_list +{ + /* the memory used goes from bytes 'mod_start' to 'mod_end-1' inclusive */ + uint32_t mod_start; + uint32_t mod_end; + + /* Module command line */ + uint32_t cmdline; + + /* padding to take it to 16 bytes (must be zero) */ + uint32_t pad; +}; + + +/* + * INT-15, AX=E820 style "AddressRangeDescriptor" + * ...with a "size" parameter on the front which is the structure size - 4, + * pointing to the next one, up until the full buffer length of the memory + * map has been reached. + */ + +struct AddrRangeDesc +{ + uint32_t size; + uint32_t base_addr_low; + uint32_t base_addr_high; + uint32_t length_low; + uint32_t length_high; + uint32_t Type; + + /* unspecified optional padding... */ +}; + +/* usable memory "Type", all others are reserved. */ +#define MB_ARD_MEMORY 1 + + +/* Drive Info structure. */ +struct drive_info +{ + /* The size of this structure. */ + uint32_t size; + + /* The BIOS drive number. */ + uint8_t drive_number; + + /* The access mode (see below). */ + uint8_t drive_mode; + + /* The BIOS geometry. */ + uint16_t drive_cylinders; + uint8_t drive_heads; + uint8_t drive_sectors; + + /* The array of I/O ports used for the drive. */ + uint16_t drive_ports[0]; +}; + +/* Drive Mode. */ +#define MB_DI_CHS_MODE 0 +#define MB_DI_LBA_MODE 1 + + +/* APM BIOS info. */ +struct apm_info +{ + uint16_t version; + uint16_t cseg; + uint32_t offset; + uint32_t cseg_16; + uint32_t dseg_16; + uint32_t cseg_len; + uint32_t cseg_16_len; + uint32_t dseg_16_len; +}; + + +/* + * MultiBoot Info description + * + * This is the struct passed to the boot image. This is done by placing + * its address in the EAX register. + */ + +struct multiboot_info +{ + /* MultiBoot info version number */ + uint32_t flags; + + /* Available memory from BIOS */ + uint32_t mem_lower; + uint32_t mem_upper; + + /* "root" partition */ + uint32_t boot_device; + + /* Kernel command line */ + uint32_t cmdline; + + /* Boot-Module list */ + uint32_t mods_count; + uint32_t mods_addr; + + union + { + struct + { + /* (a.out) Kernel symbol table info */ + uint32_t tabsize; + uint32_t strsize; + uint32_t addr; + uint32_t pad; + } + a; + + struct + { + /* (ELF) Kernel section header table */ + uint32_t num; + uint32_t size; + uint32_t addr; + uint32_t shndx; + } + e; + } + syms; + + /* Memory Mapping buffer */ + uint32_t mmap_length; + uint32_t mmap_addr; + + /* Drive Info buffer */ + uint32_t drives_length; + uint32_t drives_addr; + + /* ROM configuration table */ + uint32_t config_table; + + /* Boot Loader Name */ + uint32_t boot_loader_name; + + /* APM table */ + uint32_t apm_table; + + /* Video */ + uint32_t vbe_control_info; + uint32_t vbe_mode_info; + uint16_t vbe_mode; + uint16_t vbe_interface_seg; + uint16_t vbe_interface_off; + uint16_t vbe_interface_len; +}; + +/* + * Flags to be set in the 'flags' parameter above + */ + +/* is there basic lower/upper memory information? */ +#define MB_INFO_MEMORY 0x00000001 +/* is there a boot device set? */ +#define MB_INFO_BOOTDEV 0x00000002 +/* is the command-line defined? */ +#define MB_INFO_CMDLINE 0x00000004 +/* are there modules to do something with? */ +#define MB_INFO_MODS 0x00000008 + +/* These next two are mutually exclusive */ + +/* is there a symbol table loaded? */ +#define MB_INFO_AOUT_SYMS 0x00000010 +/* is there an ELF section header table? */ +#define MB_INFO_ELF_SHDR 0x00000020 + +/* is there a full memory map? */ +#define MB_INFO_MEM_MAP 0x00000040 + +/* Is there drive info? */ +#define MB_INFO_DRIVE_INFO 0x00000080 + +/* Is there a config table? */ +#define MB_INFO_CONFIG_TABLE 0x00000100 + +/* Is there a boot loader name? */ +#define MB_INFO_BOOT_LOADER_NAME 0x00000200 + +/* Is there a APM table? */ +#define MB_INFO_APM_TABLE 0x00000400 + +/* Is there video information? */ +#define MB_INFO_VIDEO_INFO 0x00000800 + +/* + * The following value must be present in the EAX register. + */ + +#define MULTIBOOT_VALID 0x2BADB002 diff --git a/include/x86/x86-linux.h b/include/x86/x86-linux.h new file mode 100644 index 00000000..daab50ad --- /dev/null +++ b/include/x86/x86-linux.h @@ -0,0 +1,212 @@ +#ifndef X86_LINUX_H +#define X86_LINUX_H + +#define TENATIVE 0 /* Code that is tenatively correct but hasn't yet been officially accepted */ + +#define E820MAP 0x2d0 /* our map */ +#define E820MAX 32 /* number of entries in E820MAP */ +#define E820NR 0x1e8 /* # entries in E820MAP */ + +#ifndef ASSEMBLY + +#define PACKED __attribute__((packed)) + +struct e820entry { + uint64_t addr; /* start of memory segment */ + uint64_t size; /* size of memory segment */ + uint32_t type; /* type of memory segment */ +#define E820_RAM 1 +#define E820_RESERVED 2 +#define E820_ACPI 3 /* usable as RAM once ACPI tables have been read */ +#define E820_NVS 4 +} PACKED; + +/* FIXME expand on drive_info_)struct... */ +struct drive_info_struct { + uint8_t dummy[32]; +}; +struct sys_desc_table { + uint16_t length; + uint8_t table[318]; +}; + +struct apm_bios_info { + uint16_t version; /* 0x40 */ + uint16_t cseg; /* 0x42 */ + uint32_t offset; /* 0x44 */ + uint16_t cseg_16; /* 0x48 */ + uint16_t dseg; /* 0x4a */ + uint16_t flags; /* 0x4c */ + uint16_t cseg_len; /* 0x4e */ + uint16_t cseg_16_len; /* 0x50 */ + uint16_t dseg_len; /* 0x52 */ + uint8_t reserved[44]; /* 0x54 */ +}; + + +struct x86_linux_param_header { + uint8_t orig_x; /* 0x00 */ + uint8_t orig_y; /* 0x01 */ + uint16_t ext_mem_k; /* 0x02 -- EXT_MEM_K sits here */ + uint16_t orig_video_page; /* 0x04 */ + uint8_t orig_video_mode; /* 0x06 */ + uint8_t orig_video_cols; /* 0x07 */ + uint16_t unused2; /* 0x08 */ + uint16_t orig_video_ega_bx; /* 0x0a */ + uint16_t unused3; /* 0x0c */ + uint8_t orig_video_lines; /* 0x0e */ + uint8_t orig_video_isVGA; /* 0x0f */ + uint16_t orig_video_points; /* 0x10 */ + + /* VESA graphic mode -- linear frame buffer */ + uint16_t lfb_width; /* 0x12 */ + uint16_t lfb_height; /* 0x14 */ + uint16_t lfb_depth; /* 0x16 */ + uint32_t lfb_base; /* 0x18 */ + uint32_t lfb_size; /* 0x1c */ + uint16_t cl_magic; /* 0x20 */ +#define CL_MAGIC_VALUE 0xA33F + uint16_t cl_offset; /* 0x22 */ + uint16_t lfb_linelength; /* 0x24 */ + uint8_t red_size; /* 0x26 */ + uint8_t red_pos; /* 0x27 */ + uint8_t green_size; /* 0x28 */ + uint8_t green_pos; /* 0x29 */ + uint8_t blue_size; /* 0x2a */ + uint8_t blue_pos; /* 0x2b */ + uint8_t rsvd_size; /* 0x2c */ + uint8_t rsvd_pos; /* 0x2d */ + uint16_t vesapm_seg; /* 0x2e */ + uint16_t vesapm_off; /* 0x30 */ + uint16_t pages; /* 0x32 */ + uint8_t reserved4[12]; /* 0x34 -- 0x3f reserved for future expansion */ + + struct apm_bios_info apm_bios_info; /* 0x40 */ + struct drive_info_struct drive_info; /* 0x80 */ + struct sys_desc_table sys_desc_table; /* 0xa0 */ + uint32_t alt_mem_k; /* 0x1e0 */ + uint8_t reserved5[4]; /* 0x1e4 */ + uint8_t e820_map_nr; /* 0x1e8 */ + uint8_t reserved6[8]; /* 0x1e9 */ + uint8_t setup_sects; /* 0x1f1 */ + uint16_t mount_root_rdonly; /* 0x1f2 */ + uint16_t syssize; /* 0x1f4 */ + uint16_t swapdev; /* 0x1f6 */ + uint16_t ramdisk_flags; /* 0x1f8 */ +#define RAMDISK_IMAGE_START_MASK 0x07FF +#define RAMDISK_PROMPT_FLAG 0x8000 +#define RAMDISK_LOAD_FLAG 0x4000 + uint16_t vid_mode; /* 0x1fa */ + uint16_t root_dev; /* 0x1fc */ + uint8_t reserved9[1]; /* 0x1fe */ + uint8_t aux_device_info; /* 0x1ff */ + /* 2.00+ */ + uint8_t reserved10[2]; /* 0x200 */ + uint8_t header_magic[4]; /* 0x202 */ + uint16_t protocol_version; /* 0x206 */ + uint16_t rmode_switch_ip; /* 0x208 */ + uint16_t rmode_switch_cs; /* 0x20a */ + uint8_t reserved11[4]; /* 0x208 */ + uint8_t loader_type; /* 0x210 */ +#define LOADER_TYPE_LOADLIN 1 +#define LOADER_TYPE_BOOTSECT_LOADER 2 +#define LOADER_TYPE_SYSLINUX 3 +#define LOADER_TYPE_ETHERBOOT 4 +#define LOADER_TYPE_UNKNOWN 0xFF + uint8_t loader_flags; /* 0x211 */ + uint8_t reserved12[2]; /* 0x212 */ + uint32_t kernel_start; /* 0x214 */ + uint32_t initrd_start; /* 0x218 */ + uint32_t initrd_size; /* 0x21c */ + uint8_t reserved13[4]; /* 0x220 */ + /* 2.01+ */ + uint16_t heap_end_ptr; /* 0x224 */ + uint8_t reserved14[2]; /* 0x226 */ + /* 2.02+ */ + uint32_t cmd_line_ptr; /* 0x228 */ + /* 2.03+ */ + uint32_t initrd_addr_max; /* 0x22c */ +#if TENATIVE + /* 2.04+ */ + uint16_t entry32_off; /* 0x230 */ + uint16_t internal_cmdline_off; /* 0x232 */ + uint32_t low_base; /* 0x234 */ + uint32_t low_memsz; /* 0x238 */ + uint32_t low_filesz; /* 0x23c */ + uint32_t real_base; /* 0x240 */ + uint32_t real_memsz; /* 0x244 */ + uint32_t real_filesz; /* 0x248 */ + uint32_t high_base; /* 0x24C */ + uint32_t high_memsz; /* 0x250 */ + uint32_t high_filesz; /* 0x254 */ + uint8_t reserved15[0x2d0 - 0x258]; /* 0x258 */ +#else + uint8_t reserved15[0x2d0 - 0x230]; /* 0x230 */ +#endif + struct e820entry e820_map[E820MAX]; /* 0x2d0 */ + /* 0x550 */ +#define COMMAND_LINE_SIZE 256 +}; + +struct x86_linux_faked_param_header { + struct x86_linux_param_header hdr; /* 0x00 */ + uint8_t reserved16[688]; /* 0x550 */ + uint8_t command_line[COMMAND_LINE_SIZE]; /* 0x800 */ + uint8_t reserved17[1792]; /* 0x900 - 0x1000 */ +}; + +struct x86_linux_header { + uint8_t reserved1[0x1f1]; /* 0x000 */ + uint8_t setup_sects; /* 0x1f1 */ + uint16_t root_flags; /* 0x1f2 */ + uint16_t syssize; /* 0x1f4 */ + uint16_t swapdev; /* 0x1f6 */ + uint16_t ramdisk_flags; /* 0x1f6 */ + uint16_t vid_mode; /* 0x1fa */ + uint16_t root_dev; /* 0x1fc */ + uint16_t boot_sector_magic; /* 0x1fe */ + /* 2.00+ */ + uint8_t reserved3[2]; /* 0x200 */ + uint8_t header_magic[4]; /* 0x202 */ + uint16_t protocol_version; /* 0x206 */ + uint32_t realmode_swtch; /* 0x208 */ + uint16_t start_sys; /* 0x20c */ + uint16_t kver_addr; /* 0x20e */ + uint8_t type_of_loader; /* 0x210 */ + uint8_t loadflags; /* 0x211 */ + uint16_t setup_move_size; /* 0x212 */ + uint32_t code32_start; /* 0x214 */ + uint32_t ramdisk_image; /* 0x218 */ + uint32_t ramdisk_size; /* 0x21c */ + uint8_t reserved4[4]; /* 0x220 */ + /* 2.01+ */ + uint16_t heap_end_ptr; /* 0x224 */ + uint8_t reserved5[2]; /* 0x226 */ + /* 2.02+ */ + uint32_t cmd_line_ptr; /* 0x228 */ + /* 2.03+ */ + uint32_t initrd_addr_max; /* 0x22c */ +#if TENATIVE + /* 2.04+ */ + uint16_t entry32_off; /* 0x230 */ + uint16_t internal_cmdline_off; /* 0x232 */ + uint32_t low_base; /* 0x234 */ + uint32_t low_memsz; /* 0x238 */ + uint32_t low_filesz; /* 0x23c */ + uint32_t real_base; /* 0x240 */ + uint32_t real_memsz; /* 0x244 */ + uint32_t real_filesz; /* 0x248 */ + uint32_t high_base; /* 0x24C */ + uint32_t high_memsz; /* 0x250 */ + uint32_t high_filesz; /* 0x254 */ + uint32_t tail[32*1024 - 0x258]; /* 0x258 */ +#else + uint8_t tail[32*1024 - 0x230]; /* 0x230 */ +#endif +} PACKED; + +#endif /* ASSEMBLY */ + +#define DEFAULT_INITRD_ADDR_MAX 0x37FFFFFF + +#endif /* X86_LINUX_H */ diff --git a/kdump/Makefile b/kdump/Makefile new file mode 100644 index 00000000..d9a7ab70 --- /dev/null +++ b/kdump/Makefile @@ -0,0 +1,35 @@ +# +# kdump (reading a crashdump from memory) +# + +KDUMP_C_SRCS:= kdump/kdump.c + +KDUMP_C_OBJS:= $(patsubst %.c, $(OBJDIR)/%.o, $(KDUMP_C_SRCS)) +KDUMP_C_DEPS:= $(patsubst %.c, $(OBJDIR)/%.d, $(KDUMP_C_SRCS)) +KDUMP_SRCS:= $(KDUMP_C_SRCS) +KDUMP_OBJS:= $(KDUMP_C_OBJS) +KDUMP_DEPS:= $(KDUMP_C_DEPS) +KDUMP:= $(SBINDIR)/kdump + +include $(KDUMP_DEPS) + +$(KDUMP_C_DEPS): $(OBJDIR)/%.d: %.c + mkdir -p $(@D) + $(CC) $(CFLAGS) -M $< | sed -e 's|$(patsubst %.d,%.o,$(@F))|$(patsubst %.d,%.o,$(@))|' > $@ + +$(KDUMP_C_OBJS): $(OBJDIR)/%.o: %.c $(OBJDIR)/%.d + mkdir -p $(@D) + $(CC) $(CFLAGS) -o $@ -c $< + +$(KDUMP): $(KDUMP_OBJS) + mkdir -p $(@D) + $(CC) $(CFLAGS) -o $@ $(KDUMP_OBJS) + +echo:: + @echo "KDUMP_C_SRCS $(KDUMP_C_SRCS)" + @echo "KDUMP_C_DEPS $(KDUMP_C_DEPS)" + @echo "KDUMP_C_OBJS $(KDUMP_C_OBJS)" + @echo "KDUMP_SRCS $(KDUMP_SRCS)" + @echo "KDUMP_DEPS $(KDUMP_DEPS)" + @echo "KDUMP_OBJS $(KDUMP_OBJS)" + diff --git a/kdump/kdump.c b/kdump/kdump.c new file mode 100644 index 00000000..67459827 --- /dev/null +++ b/kdump/kdump.c @@ -0,0 +1,311 @@ +#include <stdio.h> +#include <stdlib.h> +#include <errno.h> +#include <string.h> +#include <unistd.h> +#include <sys/mman.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <endian.h> +#include <elf.h> + +#if !defined(__BYTE_ORDER) || !defined(__LITTLE_ENDIAN) || !defined(__BIG_ENDIAN) +#error Endian defines missing +#endif + +#if __BYTE_ORDER == __LITTLE_ENDIAN +# define ELFDATALOCAL ELFDATA2LSB +#elif __BYTE_ORDER == __BIG_ENDIAN +# define ELFDATALOCAL ELFDATA2MSB +#else +# error Unknown byte order +#endif + +#define MAP_WINDOW_SIZE (64*1024*1024) +#define DEV_MEM "/dev/mem" + +static void *map_addr(int fd, unsigned long size, off_t offset) +{ + void *result; + result = mmap(0, size, PROT_READ, MAP_SHARED, fd, offset); + if (result == MAP_FAILED) { + fprintf(stderr, "Cannot mmap " DEV_MEM " offset: %llu size: %lu: %s\n", + (unsigned long long)offset, size, strerror(errno)); + exit(5); + } + return result; +} + +static void unmap_addr(void *addr, unsigned long size) +{ + int ret; + ret = munmap(addr, size); + if (ret < 0) { + fprintf(stderr, "munmap failed: %s\n", + strerror(errno)); + exit(6); + } +} + +static void *xmalloc(size_t size) +{ + void *result; + result = malloc(size); + if (result == NULL) { + fprintf(stderr, "malloc of %u bytes failed: %s\n", + size, strerror(errno)); + exit(7); + } + return result; +} + +static void *collect_notes( + int fd, Elf64_Ehdr *ehdr, Elf64_Phdr *phdr, size_t *note_bytes) +{ + int i; + size_t bytes, result_bytes; + char *notes; + + result_bytes = 0; + /* Find the worst case note memory usage */ + bytes = 0; + for(i = 0; i < ehdr->e_phnum; i++) { + if (phdr[i].p_type == PT_NOTE) { + bytes += phdr[i].p_filesz; + } + } + + /* Allocate the worst case note array */ + notes = xmalloc(bytes); + + /* Walk through and capture the notes */ + for(i = 0; i < ehdr->e_phnum; i++) { + Elf64_Nhdr *hdr, *lhdr, *nhdr; + void *pnotes; + if (phdr[i].p_type != PT_NOTE) { + continue; + } + /* First snapshot the notes */ + pnotes = map_addr(fd, phdr[i].p_filesz, phdr[i].p_offset); + memcpy(notes + result_bytes, pnotes, phdr[i].p_filesz); + unmap_addr(pnotes, phdr[i].p_filesz); + + /* Walk through the new notes and find the real length */ + hdr = (Elf64_Nhdr *)(notes + result_bytes); + lhdr = (Elf64_Nhdr *)(notes + result_bytes + phdr[i].p_filesz); + for(; hdr < lhdr; hdr = nhdr) { + size_t hdr_size; + /* If there is not a name this is a invalid/reserved note + * stop here. + */ + if (hdr->n_namesz == 0) { + break; + } + hdr_size = + sizeof(*hdr) + + ((hdr->n_namesz + 3) & ~3) + + ((hdr->n_descsz + 3) & ~3); + + nhdr = (Elf64_Nhdr *)(((char *)hdr) + hdr_size); + /* if the note does not fit in the segment stop here */ + if (nhdr > lhdr) { + break; + } + /* Update result_bytes for after each good header */ + result_bytes = ((char *)hdr) - notes; + } + } + *note_bytes = result_bytes; + return notes; +} + +static void *generate_new_headers( + Elf64_Ehdr *ehdr, Elf64_Phdr *phdr, size_t note_bytes, size_t *header_bytes) +{ + unsigned phnum; + size_t bytes; + char *headers; + Elf64_Ehdr *nehdr; + Elf64_Phdr *nphdr; + unsigned long long offset; + int i; + /* Count the number of program headers. + * When we are done there will be only one note header. + */ + phnum = 1; + for(i = 0; i < ehdr->e_phnum; i++) { + if (phdr[i].p_type == PT_NOTE) { + continue; + } + phnum++; + } + + /* Compute how many bytes we will need for headers */ + bytes = sizeof(*ehdr) + sizeof(*phdr)*phnum; + + /* Allocate memory for the headers */ + headers = xmalloc(bytes); + + /* Setup pointers to the new headers */ + nehdr = (Elf64_Ehdr *)headers; + nphdr = (Elf64_Phdr *)(headers + sizeof(*nehdr)); + + /* Copy and adjust the Elf header */ + memcpy(nehdr, ehdr, sizeof(*nehdr)); + nehdr->e_phoff = sizeof(*nehdr); + nehdr->e_phnum = phnum; + nehdr->e_shoff = 0; + nehdr->e_shentsize = 0; + nehdr->e_shnum = 0; + nehdr->e_shstrndx = 0; + + /* Write the note program header */ + nphdr->p_type = PT_NOTE; + nphdr->p_offset = bytes; + nphdr->p_vaddr = 0; + nphdr->p_paddr = 0; + nphdr->p_filesz = note_bytes; + nphdr->p_memsz = note_bytes; + nphdr->p_flags = 0; + nphdr->p_align = 0; + nphdr++; + + /* Write the rest of the program headers */ + offset = bytes + note_bytes; + for(i = 0; i < ehdr->e_phnum; i++) { + if (phdr[i].p_type == PT_NOTE) { + continue; + } + memcpy(nphdr, &phdr[i], sizeof(*nphdr)); + nphdr->p_offset = offset; + offset += phdr[i].p_filesz; + } + + *header_bytes = bytes; + return headers; +} + +static void write_all(int fd, const void *buf, size_t count) +{ + ssize_t result, written; + const char *ptr; + size_t left; + ptr = buf; + left = count; + do { + result = write(fd, ptr, left); + if (result >= 0) { + written += result; + ptr += result; + left -= result; + } + else if ((errno != EAGAIN) && (errno != EINTR)) { + fprintf(stderr, "write failed: %s\n", + strerror(errno)); + exit(8); + } + } while(written < count); +} + +int main(int argc, char **argv) +{ + char *start_addr_str, *end; + unsigned long long start_addr; + Elf64_Ehdr *ehdr; + Elf64_Phdr *phdr; + void *notes, *headers; + size_t note_bytes, header_bytes; + int fd; + int i; + start_addr_str = 0; + if (argc > 2) { + fprintf(stderr, "Invalid argument count\n"); + exit(9); + } + if (argc == 2) { + start_addr_str = argv[1]; + } + if (!start_addr_str) { + start_addr_str = getenv("elfcorehdr"); + } + if (!start_addr_str) { + fprintf(stderr, "Cannot find the start of the core dump\n"); + exit(1); + } + start_addr = strtoull(start_addr_str, &end, 0); + if ((start_addr_str == end) || (*end != '\0')) { + fprintf(stderr, "Bad core dump start addres: %s\n", + start_addr_str); + exit(2); + } + + fd = open(DEV_MEM, O_RDONLY); + if (fd < 0) { + fprintf(stderr, "Cannot open " DEV_MEM ": %s\n", + strerror(errno)); + exit(3); + } + + /* Get the elf header */ + ehdr = map_addr(fd, sizeof(*ehdr), start_addr); + + /* Verify the ELF header */ + if ( (ehdr->e_ident[EI_MAG0] != ELFMAG0) || + (ehdr->e_ident[EI_MAG1] != ELFMAG1) || + (ehdr->e_ident[EI_MAG2] != ELFMAG2) || + (ehdr->e_ident[EI_MAG3] != ELFMAG3) || + (ehdr->e_ident[EI_CLASS] != ELFCLASS64) || + (ehdr->e_ident[EI_DATA] != ELFDATALOCAL) || + (ehdr->e_ident[EI_VERSION] != EV_CURRENT) || + (ehdr->e_type != ET_CORE) || + (ehdr->e_version != EV_CURRENT) || + (ehdr->e_ehsize != sizeof(Elf64_Ehdr)) || + (ehdr->e_phentsize != sizeof(Elf64_Phdr)) || + (ehdr->e_phnum == 0)) + { + fprintf(stderr, "Invalid Elf header\n"); + exit(4); + } + + /* Get the program header */ + phdr = map_addr(fd, sizeof(*phdr)*(ehdr->e_phnum), ehdr->e_phoff); + + /* Collect up the notes */ + note_bytes = 0; + notes = collect_notes(fd, ehdr, phdr, ¬e_bytes); + + /* Generate new headers */ + header_bytes = 0; + headers = generate_new_headers(ehdr, phdr, note_bytes, &header_bytes); + + /* Write out everything */ + write_all(STDOUT_FILENO, headers, header_bytes); + write_all(STDOUT_FILENO, notes, note_bytes); + for(i = 0; i < ehdr->e_phnum; i++) { + unsigned long long offset, size; + size_t wsize; + if (phdr[i].p_type != PT_NOTE) { + continue; + } + offset = phdr[i].p_offset; + size = phdr[i].p_filesz; + wsize = MAP_WINDOW_SIZE; + if (wsize > size) { + wsize = size; + } + for(;size > 0; size -= wsize, offset += wsize) { + void *buf; + wsize = MAP_WINDOW_SIZE; + if (wsize > size) { + wsize = size; + } + buf = map_addr(fd, wsize, offset); + write_all(STDOUT_FILENO, buf, wsize); + unmap_addr(buf, wsize); + } + } + free(notes); + close(fd); + return 0; +} diff --git a/kexec-tools.spec.in b/kexec-tools.spec.in new file mode 100644 index 00000000..6605cbb4 --- /dev/null +++ b/kexec-tools.spec.in @@ -0,0 +1,40 @@ +Summary: Load one kernel from another +Name: kexec-tools +Version: +Release: 0 +Copyright: GPL +Group: Development/Tools +Source0:%{name}-%{version}.tar.gz +Packager: Eric Biederman <ebiederman@xmission.com> +BuildRoot: %{_tmppath}/%{name} + +%description +/sbin/kexec is a user space utiltity for loading another kernel +and asking the currently running kernel to do something with it. +A currently running kernel may be asked to start the loaded +kernel on reboot, or to start the loaded kernel after it panics. + +The panic case is useful for having an intact kernel for writing +crash dumps. But other uses may be imagined. + +%prep +%setup -q -n %{name}-%{version} + +%build +%configure +make + +%install +make install DESTDIR=${RPM_BUILD_ROOT} + +%files +%defattr(-,root,root) +%{_sbindir}/kexec +%doc News +%doc COPYING +%doc TODO +#%{_mandir}/man8/kexec.8.gz + +%changelog +* Tue Dec 16 2004 Eric Biederman <ebiederman@lnxi.com> +- kexec-tools initialy packaged as an rpm. diff --git a/kexec/Makefile b/kexec/Makefile new file mode 100644 index 00000000..812da816 --- /dev/null +++ b/kexec/Makefile @@ -0,0 +1,63 @@ +# +# kexec (linux booting linux) +# +PURGATORY_HEX_C:= $(OBJDIR)/kexec/purgatory.c + +$(PURGATORY_HEX_C): $(PURGATORY) $(BIN_TO_HEX) + $(MKDIR) -p $(@D) + $(BIN_TO_HEX) purgatory < $(PURGATORY) > $@ + +KCFLAGS:= $(CFLAGS) -Ikexec/arch/$(ARCH)/include + +KEXEC_C_SRCS:= kexec/kexec.c +KEXEC_C_SRCS+= kexec/ifdown.c +KEXEC_C_SRCS+= kexec/kexec-elf.c +KEXEC_C_SRCS+= kexec/kexec-elf-exec.c +KEXEC_C_SRCS+= kexec/kexec-elf-rel.c +KEXEC_C_SRCS+= kexec/kexec-elf-boot.c +KEXEC_C_SRCS+= $(PURGATORY_HEX_C) +KEXEC_S_SRCS:= +include kexec/arch/$(ARCH)/Makefile + +KEXEC_C_OBJS:= $(patsubst %.c, $(OBJDIR)/%.o, $(KEXEC_C_SRCS)) +KEXEC_C_DEPS:= $(patsubst %.c, $(OBJDIR)/%.d, $(KEXEC_C_SRCS)) +KEXEC_S_OBJS:= $(patsubst %.S, $(OBJDIR)/%.o, $(KEXEC_S_SRCS)) +KEXEC_S_DEPS:= $(patsubst %.S, $(OBJDIR)/%.d, $(KEXEC_S_SRCS)) +KEXEC_SRCS:= $(KEXEC_C_SRCS) $(KEXEC_S_SRCS) +KEXEC_OBJS:= $(KEXEC_C_OBJS) $(KEXEC_S_OBJS) +KEXEC_DEPS:= $(KEXEC_C_DEPS) $(KEXEC_S_DEPS) +KEXEC:= $(SBINDIR)/kexec + +include $(KEXEC_DEPS) + +$(KEXEC_C_DEPS): $(OBJDIR)/%.d: %.c + mkdir -p $(@D) + $(CC) $(KCFLAGS) -M $< | sed -e 's|$(patsubst %.d,%.o,$(@F))|$(patsubst %.d,%.o,$(@))|' > $@ + +$(KEXEC_S_DEPS): $(OBJDIR)/%.d: %.S + mkdir -p $(@D) + $(CC) $(KCFLAGS) -M $< | sed -e 's|$(patsubst %.d,%.o,$(@F))|$(patsubst %.d,%.o,$(@))|' > $@ + +$(KEXEC_C_OBJS): $(OBJDIR)/%.o: %.c $(OBJDIR)/%.d + mkdir -p $(@D) + $(CC) $(KCFLAGS) -o $@ -c $< + +$(KEXEC_S_OBJS): $(OBJDIR)/%.o: %.S $(OBJDIR)/%.d + mkdir -p $(@D) + $(CC) $(KCFLAGS) -o $@ -c $< + +$(KEXEC): $(KEXEC_OBJS) $(UTIL_LIB) + mkdir -p $(@D) + $(CC) $(KCFLAGS) -o $@ $(KEXEC_OBJS) $(UTIL_LIB) $(LIBS) + +echo:: + @echo "KEXEC_C_SRCS $(KEXEC_C_SRCS)" + @echo "KEXEC_C_DEPS $(KEXEC_C_DEPS)" + @echo "KEXEC_C_OBJS $(KEXEC_C_OBJS)" + @echo "KEXEC_S_SRCS $(KEXEC_S_SRCS)" + @echo "KEXEC_S_DEPS $(KEXEC_S_DEPS)" + @echo "KEXEC_S_OBJS $(KEXEC_S_OBJS)" + @echo "KEXEC_SRCS $(KEXEC_SRCS)" + @echo "KEXEC_DEPS $(KEXEC_DEPS)" + @echo "KEXEC_OBJS $(KEXEC_OBJS)" + diff --git a/kexec/arch/alpha/include/arch/options.h b/kexec/arch/alpha/include/arch/options.h new file mode 100644 index 00000000..11557a4a --- /dev/null +++ b/kexec/arch/alpha/include/arch/options.h @@ -0,0 +1,11 @@ +#ifndef KEXEC_ARCH_ALPHA_OPTIONS_H +#define KEXEC_ARCH_ALPHA_OPTIONS_H + +#define OPT_ARCH_MAX (OPT_MAX+0) + +#define KEXEC_ARCH_OPTIONS \ + KEXEC_OPTIONS \ + +#define KEXEC_ARCH_OPT_STR KEXEC_OPT_STR "" + +#endif /* KEXEC_ARCH_ALPHA_OPTIONS_H */ diff --git a/kexec/arch/i386/Makefile b/kexec/arch/i386/Makefile new file mode 100644 index 00000000..306ac3be --- /dev/null +++ b/kexec/arch/i386/Makefile @@ -0,0 +1,11 @@ +# +# kexec i386 (linux booting linux) +# +KEXEC_C_SRCS+= kexec/arch/i386/kexec-x86.c +KEXEC_C_SRCS+= kexec/arch/i386/kexec-elf-x86.c +KEXEC_C_SRCS+= kexec/arch/i386/kexec-elf-rel-x86.c +KEXEC_C_SRCS+= kexec/arch/i386/kexec-bzImage.c +KEXEC_C_SRCS+= kexec/arch/i386/kexec-multiboot-x86.c +KEXEC_C_SRCS+= kexec/arch/i386/kexec-beoboot-x86.c +KEXEC_C_SRCS+= kexec/arch/i386/kexec-nbi.c +KEXEC_C_SRCS+= kexec/arch/i386/x86-linux-setup.c diff --git a/kexec/arch/i386/compat_x86_64.S b/kexec/arch/i386/compat_x86_64.S new file mode 100644 index 00000000..f8a04e93 --- /dev/null +++ b/kexec/arch/i386/compat_x86_64.S @@ -0,0 +1,131 @@ +/* + * kexec: Linux boots Linux + * + * Copyright (C) 2003,2004,2005 Eric Biederman (ebiederm@xmission.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation (version 2 of the License). + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#define USE_LRET 0 + +.data + .equ MSR_K6_EFER, 0xC0000080 + .equ EFER_LME, 0x00000100 + .equ X86_CR4_PAE, 0x00000020 + .equ CR0_PG, 0x80000000 + + .globl compat_x86_64, compat_x86_64_size, compat_x86_64_entry32 + .code64 + .balign 16 +compat_x86_64: + /* Compute where I am running at */ + leaq compat_x86_64(%rip), %rbx + + /* Relocate the code */ + addq %rbx, gdt_addr(%rip) +#if !USE_LRET + addl %ebx, lm_exit_addr(%rip) +#endif + + /* Lookup the 32bit start address */ + movl compat_x86_64_entry32(%rip), %ebx + pushq %rbx + +#if USE_LRET + /* Push the 64bit start address */ + pushq $0x10 + pushq lm_exit(%rip) +#endif + + /* This also acts as a serializing instruction ensuring + * my self modifying code works. + */ + lgdt gdt(%rip) + +#if USE_LRET + lret +#else + /* Switch to 32bit compatiblity mode */ + ljmp *lm_exit_addr(%rip) +#endif +lm_exit: + .code32 + + /* Disable paging */ + movl %cr0, %eax + andl $~CR0_PG, %eax + movl %eax, %cr0 + + /* Disable long mode */ + movl $MSR_K6_EFER, %ecx + rdmsr + andl $~EFER_LME, %eax + wrmsr + + /* Disable PAE */ + xorl %eax, %eax + movl %eax, %cr4 + + /* load the data segments */ + movl $0x18, %eax /* data segment */ + movl %eax, %ds + movl %eax, %es + movl %eax, %ss + movl %eax, %fs + movl %eax, %gs + + /* Remove the 32 bits of the 64 bit start address */ + popl %eax + + /* set all of the registers to known values */ + /* leave %esp alone */ + + xorl %eax, %eax + xorl %ebx, %ebx + xorl %ecx, %ecx + xorl %edx, %edx + xorl %esi, %esi + xorl %edi, %edi + xorl %ebp, %ebp + + ret + + .balign 16 +gdt: /* 0x00 unusable segment + * 0x08 unused + * so use them as the gdt ptr + */ + .word gdt_end - gdt - 1 +gdt_addr: + .quad gdt - compat_x86_64 + .word 0, 0, 0 + + /* 0x10 4GB flat code segment */ + .word 0xFFFF, 0x0000, 0x9A00, 0x00CF + /* 0x18 4GB flat data segment */ + .word 0xFFFF, 0x0000, 0x9200, 0x00CF +gdt_end: + +#if !USE_LRET +lm_exit_addr: + .long lm_exit - compat_x86_64 + .long 0x10 +#endif + +compat_x86_64_entry32: + .long 0 + +compat_x86_64_end: +compat_x86_64_size: + .long compat_x86_64_end - compat_x86_64 diff --git a/kexec/arch/i386/include/arch/options.h b/kexec/arch/i386/include/arch/options.h new file mode 100644 index 00000000..60bccd61 --- /dev/null +++ b/kexec/arch/i386/include/arch/options.h @@ -0,0 +1,22 @@ +#ifndef KEXEC_ARCH_I386_OPTIONS_H +#define KEXEC_ARCH_I386_OPTIONS_H + +#define OPT_RESET_VGA (OPT_MAX+0) +#define OPT_SERIAL (OPT_MAX+1) +#define OPT_SERIAL_BAUD (OPT_MAX+2) +#define OPT_CONSOLE_VGA (OPT_MAX+3) +#define OPT_CONSOLE_SERIAL (OPT_MAX+4) +#define OPT_ARCH_MAX (OPT_MAX+5) + +#define KEXEC_ARCH_OPTIONS \ + KEXEC_OPTIONS \ + { "reset-vga", 0, 0, OPT_RESET_VGA }, \ + { "serial", 1, 0, OPT_SERIAL }, \ + { "serial-baud", 1, 0, OPT_SERIAL_BAUD }, \ + { "console-vga", 0, 0, OPT_CONSOLE_VGA }, \ + { "console-serial", 0, 0, OPT_CONSOLE_SERIAL }, \ + +#define KEXEC_ARCH_OPT_STR KEXEC_OPT_STR "" + +#endif /* KEXEC_ARCH_I386_OPTIONS_H */ + diff --git a/kexec/arch/i386/kexec-beoboot-x86.c b/kexec/arch/i386/kexec-beoboot-x86.c new file mode 100644 index 00000000..a73a3cbe --- /dev/null +++ b/kexec/arch/i386/kexec-beoboot-x86.c @@ -0,0 +1,140 @@ +/*------------------------------------------------------------ -*- C -*- + * Eric Biederman <ebiederman@xmission.com> + * Erik Arjan Hendriks <hendriks@lanl.gov> + * + * 14 December 2004 + * This file is a derivative of the beoboot image loader, modified + * to work with kexec. + * + * This version is derivative from the orignal mkbootimg.c which is + * Copyright (C) 2000 Scyld Computing Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + + * + *--------------------------------------------------------------------*/ + +#define _GNU_SOURCE +#include <stdio.h> +#include <stdint.h> +#include <string.h> +#include <getopt.h> +#include <x86/x86-linux.h> +#include <boot/beoboot.h> +#include "../../kexec.h" +#include "kexec-x86.h" +#include <arch/options.h> + +int beoboot_probe(const char *buf, off_t len) +{ + struct beoboot_header bb_header; + const char *cmdline, *kernel; + int result; + if (len < sizeof(bb_header)) { + return -1; + } + memcpy(&bb_header, buf, sizeof(bb_header)); + if (memcmp(bb_header.magic, BEOBOOT_MAGIC, 4) != 0) { + return -1; + } + if (bb_header.arch != BEOBOOT_ARCH) { + return -1; + } + /* Make certain a bzImage is packed into there. + */ + cmdline = buf + sizeof(bb_header); + kernel = cmdline + bb_header.cmdline_size; + result = bzImage_probe(kernel, bb_header.kernel_size); + + return result; +} + +void beoboot_usage(void) +{ + printf( "-d, --debug Enable debugging to help spot a failure.\n" + " --real-mode Use the kernels real mode entry point.\n" + ); + + /* No parameters are parsed */ +} + +#define SETUP_BASE 0x90000 +#define KERN32_BASE 0x100000 /* 1MB */ +#define INITRD_BASE 0x1000000 /* 16MB */ + +int beoboot_load(int argc, char **argv, const char *buf, off_t len, + struct kexec_info *info) +{ + struct beoboot_header bb_header; + const unsigned char *command_line, *kernel, *initrd; + + int debug, real_mode_entry; + int opt; + int result; +#define OPT_REAL_MODE (OPT_ARCH_MAX+0) + static const struct option options[] = { + KEXEC_ARCH_OPTIONS + { "debug", 0, 0, OPT_DEBUG }, + { "real-mode", 0, 0, OPT_REAL_MODE }, + { 0, 0, 0, 0 }, + }; + static const char short_options[] = KEXEC_ARCH_OPT_STR ""; + + /* + * Parse the command line arguments + */ + debug = 0; + real_mode_entry = 0; + while((opt = getopt_long(argc, argv, short_options, options, 0)) != -1) { + switch(opt) { + default: + /* Ignore core options */ + if (opt < OPT_ARCH_MAX) { + break; + } + case '?': + usage(); + return -1; + case OPT_DEBUG: + debug = 1; + break; + case OPT_REAL_MODE: + real_mode_entry = 1; + break; + } + } + + + /* + * Parse the file + */ + memcpy(&bb_header, buf, sizeof(bb_header)); + command_line = buf + sizeof(bb_header); + kernel = command_line + bb_header.cmdline_size; + initrd = NULL; + if (bb_header.flags & BEOBOOT_INITRD_PRESENT) { + initrd = kernel + bb_header.kernel_size; + } + + result = do_bzImage_load(info, + kernel, bb_header.kernel_size, + command_line, bb_header.cmdline_size, + initrd, bb_header.initrd_size, + real_mode_entry, debug); + + return result; +} + diff --git a/kexec/arch/i386/kexec-bzImage.c b/kexec/arch/i386/kexec-bzImage.c new file mode 100644 index 00000000..9de2dc8b --- /dev/null +++ b/kexec/arch/i386/kexec-bzImage.c @@ -0,0 +1,296 @@ +/* + * kexec: Linux boots Linux + * + * Copyright (C) 2003-2005 Eric Biederman (ebiederm@xmission.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation (version 2 of the License). + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#define _GNU_SOURCE +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <errno.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/mman.h> +#include <fcntl.h> +#include <unistd.h> +#include <getopt.h> +#include <elf.h> +#include <boot/elf_boot.h> +#include <ip_checksum.h> +#include <x86/x86-linux.h> +#include "../../kexec.h" +#include "../../kexec-elf.h" +#include "kexec-x86.h" +#include "x86-linux-setup.h" +#include <arch/options.h> + +static const int probe_debug = 0; + +int bzImage_probe(const char *buf, off_t len) +{ + struct x86_linux_header header; + if (len < sizeof(header)) { + return -1; + } + memcpy(&header, buf, sizeof(header)); + if (memcmp(header.header_magic, "HdrS", 4) != 0) { + if (probe_debug) { + fprintf(stderr, "Not a bzImage\n"); + } + return -1; + } + if (header.boot_sector_magic != 0xAA55) { + if (probe_debug) { + fprintf(stderr, "No x86 boot sector present\n"); + } + /* No x86 boot sector present */ + return -1; + } + if (header.protocol_version < 0x0200) { + if (probe_debug) { + fprintf(stderr, "Must be at least protocol version 2.00\n"); + } + /* Must be at least protocol version 2.00 */ + return -1; + } + if ((header.loadflags & 1) == 0) { + if (probe_debug) { + fprintf(stderr, "zImage not a bzImage\n"); + } + /* Not a bzImage */ + return -1; + } + /* I've got a bzImage */ + if (probe_debug) { + fprintf(stderr, "It's a bzImage\n"); + } + return 0; +} + + +void bzImage_usage(void) +{ + printf( "-d, --debug Enable debugging to help spot a failure.\n" + " --real-mode Use the kernels real mode entry point.\n" + " --command-line=STRING Set the kernel command line to STRING.\n" + " --append=STRING Set the kernel command line to STRING.\n" + " --initrd=FILE Use FILE as the kernel's initial ramdisk.\n" + " --ramdisk=FILE Use FILE as the kernel's initial ramdisk.\n" + ); + +} + +int do_bzImage_load(struct kexec_info *info, + const char *kernel, off_t kernel_len, + const char *command_line, off_t command_line_len, + const char *initrd, off_t initrd_len, + int real_mode_entry, int debug) +{ + struct x86_linux_header setup_header; + struct x86_linux_param_header *real_mode; + int setup_sects; + char *kernel_version; + size_t size; + int kern16_size; + unsigned long setup_base, setup_size; + struct entry32_regs regs32; + struct entry16_regs regs16; + + /* + * Find out about the file I am about to load. + */ + if (kernel_len < sizeof(setup_header)) { + return -1; + } + memcpy(&setup_header, kernel, sizeof(setup_header)); + setup_sects = setup_header.setup_sects; + if (setup_sects == 0) { + setup_sects = 4; + } + kern16_size = (setup_sects +1) *512; + kernel_version = ((unsigned char *)&setup_header) + 512 + setup_header.kver_addr; + if (kernel_len < kern16_size) { + fprintf(stderr, "BzImage truncated?\n"); + return -1; + } + + /* Load the trampoline. This must load at a higher address + * the the argument/parameter segment or the kernel will stomp + * it's gdt. + */ + elf_rel_build_load(info, &info->rhdr, purgatory, purgatory_size, + 0x3000, 640*1024, -1); + + /* The argument/parameter segment */ + setup_size = kern16_size + command_line_len; + real_mode = xmalloc(setup_size); + memcpy(real_mode, kernel, kern16_size); + if (real_mode->protocol_version >= 0x0200) { + /* Careful setup_base must be greater than 8K */ + setup_base = add_buffer(info, real_mode, setup_size, setup_size, + 16, 0x3000, 640*1024, -1); + } else { + add_segment(info, real_mode, setup_size, SETUP_BASE, setup_size); + setup_base = SETUP_BASE; + } + /* Verify purgatory loads higher than the parameters */ + if (info->rhdr.rel_addr < setup_base) { + die("Could not put setup code above the kernel parameters\n"); + } + + /* The main kernel segment */ + size = kernel_len - kern16_size; + add_segment(info, kernel + kern16_size, size, KERN32_BASE, size); + + + /* Tell the kernel what is going on */ + setup_linux_bootloader_parameters(info, real_mode, setup_base, + kern16_size, command_line, command_line_len, + initrd, initrd_len); + + /* Get the initial register values */ + elf_rel_get_symbol(&info->rhdr, "entry16_regs", ®s16, sizeof(regs16)); + elf_rel_get_symbol(&info->rhdr, "entry32_regs", ®s32, sizeof(regs32)); + /* + + * Initialize the 32bit start information. + */ + regs32.eax = 0; /* unused */ + regs32.ebx = 0; /* 0 == boot not AP processor start */ + regs32.ecx = 0; /* unused */ + regs32.edx = 0; /* unused */ + regs32.esi = setup_base; /* kernel parameters */ + regs32.edi = 0; /* unused */ + regs32.esp = elf_rel_get_addr(&info->rhdr, "stack_end"); /* stack, unused */ + regs32.ebp = 0; /* unused */ + regs32.eip = KERN32_BASE; /* kernel entry point */ + + /* + * Initialize the 16bit start information. + */ + regs16.cs = setup_base + 0x20; + regs16.ip = 0; + regs16.ss = (elf_rel_get_addr(&info->rhdr, "stack_end") - 64*1024) >> 4; + regs16.esp = 0xFFFC; + if (real_mode_entry) { + printf("Starting the kernel in real mode\n"); + regs32.eip = elf_rel_get_addr(&info->rhdr, "entry16"); + } + if (real_mode && debug) { + unsigned long entry16_debug, pre32, first32; + uint32_t old_first32; + /* Find the location of the symbols */ + entry16_debug = elf_rel_get_addr(&info->rhdr, "entry16_debug"); + pre32 = elf_rel_get_addr(&info->rhdr, "entry16_debug_pre32"); + first32 = elf_rel_get_addr(&info->rhdr, "entry16_debug_first32"); + + /* Hook all of the linux kernel hooks */ + real_mode->rmode_switch_cs = entry16_debug >> 4; + real_mode->rmode_switch_ip = pre32 - entry16_debug; + old_first32 = real_mode->kernel_start; + real_mode->kernel_start = first32; + elf_rel_set_symbol(&info->rhdr, "entry16_debug_old_first32", + &old_first32, sizeof(old_first32)); + + regs32.eip = entry16_debug; + } + elf_rel_set_symbol(&info->rhdr, "entry16_regs", ®s16, sizeof(regs16)); + elf_rel_set_symbol(&info->rhdr, "entry16_debug_regs", ®s16, sizeof(regs16)); + elf_rel_set_symbol(&info->rhdr, "entry32_regs", ®s32, sizeof(regs32)); + + /* Fill in the information BIOS calls would normally provide. */ + if (!real_mode_entry) { + setup_linux_system_parameters(real_mode); + } + + return 0; +} + +int bzImage_load(int argc, char **argv, const char *buf, off_t len, + struct kexec_info *info) +{ + const char *command_line; + const char *ramdisk; + char *ramdisk_buf; + off_t ramdisk_length; + int command_line_len; + int debug, real_mode_entry; + int opt; + int result; +#define OPT_APPEND (OPT_ARCH_MAX+0) +#define OPT_RAMDISK (OPT_ARCH_MAX+1) +#define OPT_REAL_MODE (OPT_ARCH_MAX+2) + static const struct option options[] = { + KEXEC_ARCH_OPTIONS + { "debug", 0, 0, OPT_DEBUG }, + { "command-line", 1, 0, OPT_APPEND }, + { "append", 1, 0, OPT_APPEND }, + { "initrd", 1, 0, OPT_RAMDISK }, + { "ramdisk", 1, 0, OPT_RAMDISK }, + { "real-mode", 0, 0, OPT_REAL_MODE }, + { 0, 0, 0, 0 }, + }; + static const char short_options[] = KEXEC_ARCH_OPT_STR "d"; + + /* + * Parse the command line arguments + */ + debug = 0; + real_mode_entry = 0; + command_line = 0; + ramdisk = 0; + ramdisk_length = 0; + while((opt = getopt_long(argc, argv, short_options, options, 0)) != -1) { + switch(opt) { + default: + /* Ignore core options */ + if (opt < OPT_ARCH_MAX) { + break; + } + case '?': + usage(); + return -1; + case OPT_DEBUG: + debug = 1; + break; + case OPT_APPEND: + command_line = optarg; + break; + case OPT_RAMDISK: + ramdisk = optarg; + break; + case OPT_REAL_MODE: + real_mode_entry = 1; + break; + } + } + command_line_len = 0; + if (command_line) { + command_line_len = strlen(command_line) +1; + } + ramdisk_buf = 0; + if (ramdisk) { + ramdisk_buf = slurp_file(ramdisk, &ramdisk_length); + } + result = do_bzImage_load(info, + buf, len, + command_line, command_line_len, + ramdisk_buf, ramdisk_length, + real_mode_entry, debug); + + return result; +} diff --git a/kexec/arch/i386/kexec-elf-rel-x86.c b/kexec/arch/i386/kexec-elf-rel-x86.c new file mode 100644 index 00000000..e2f17489 --- /dev/null +++ b/kexec/arch/i386/kexec-elf-rel-x86.c @@ -0,0 +1,35 @@ +#include <stdio.h> +#include <elf.h> +#include "../../kexec.h" +#include "../../kexec-elf.h" + +int machine_verify_elf_rel(struct mem_ehdr *ehdr) +{ + if (ehdr->ei_data != ELFDATA2LSB) { + return 0; + } + if (ehdr->ei_class != ELFCLASS32) { + return 0; + } + if ((ehdr->e_machine != EM_386) && (ehdr->e_machine != EM_486)) + { + return 0; + } + return 1; +} + +void machine_apply_elf_rel(struct mem_ehdr *ehdr, unsigned long r_type, + void *location, unsigned long address, unsigned long value) +{ + switch(r_type) { + case R_386_32: + *((uint32_t *)location) += value; + break; + case R_386_PC32: + *((uint32_t *)location) += value - address; + break; + default: + die("Unknown rel relocation: %lu\n", r_type); + break; + } +} diff --git a/kexec/arch/i386/kexec-elf-x86.c b/kexec/arch/i386/kexec-elf-x86.c new file mode 100644 index 00000000..5cfa0d4e --- /dev/null +++ b/kexec/arch/i386/kexec-elf-x86.c @@ -0,0 +1,245 @@ +/* + * kexec: Linux boots Linux + * + * Copyright (C) 2003-2005 Eric Biederman (ebiederm@xmission.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation (version 2 of the License). + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#define _GNU_SOURCE +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <errno.h> +#include <limits.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/mman.h> +#include <fcntl.h> +#include <unistd.h> +#include <getopt.h> +#include <elf.h> +#include <x86/x86-linux.h> +#include "../../kexec.h" +#include "../../kexec-elf.h" +#include "../../kexec-elf-boot.h" +#include "x86-linux-setup.h" +#include "kexec-x86.h" +#include <arch/options.h> + +static const int probe_debug = 0; + +int elf_x86_probe(const char *buf, off_t len) +{ + + struct mem_ehdr ehdr; + int result; + result = build_elf_exec_info(buf, len, &ehdr); + if (result < 0) { + if (probe_debug) { + fprintf(stderr, "Not an ELF executable\n"); + } + goto out; + } + + /* Verify the architecuture specific bits */ + if ((ehdr.e_machine != EM_386) && (ehdr.e_machine != EM_486)) { + /* for a different architecture */ + if (probe_debug) { + fprintf(stderr, "Not x86_64 ELF executable\n"); + } + result = -1; + goto out; + } + result = 0; + out: + free_elf_info(&ehdr); + return result; +} + +void elf_x86_usage(void) +{ + printf( " --command-line=STRING Set the kernel command line to STRING\n" + " --append=STRING Set the kernel command line to STRING\n" + " --initrd=FILE Use FILE as the kernel's initial ramdisk.\n" + " --ramdisk=FILE Use FILE as the kernel's initial ramdisk.\n" + " --args-linux Pass linux kernel style options\n" + " --args-elf Pass elf boot notes\n" + ); + + +} + +int elf_x86_load(int argc, char **argv, const char *buf, off_t len, + struct kexec_info *info) +{ + struct mem_ehdr ehdr; + const char *command_line; + int command_line_len; + const char *ramdisk; + unsigned long entry, max_addr; + int arg_style; +#define ARG_STYLE_ELF 0 +#define ARG_STYLE_LINUX 1 +#define ARG_STYLE_NONE 2 + int opt; +#define OPT_APPEND (OPT_ARCH_MAX+0) +#define OPT_RAMDISK (OPT_ARCH_MAX+1) +#define OPT_ARGS_ELF (OPT_ARCH_MAX+2) +#define OPT_ARGS_LINUX (OPT_ARCH_MAX+3) +#define OPT_ARGS_NONE (OPT_ARCH_MAX+4) + + static const struct option options[] = { + KEXEC_ARCH_OPTIONS + { "command-line", 1, NULL, OPT_APPEND }, + { "append", 1, NULL, OPT_APPEND }, + { "initrd", 1, NULL, OPT_RAMDISK }, + { "ramdisk", 1, NULL, OPT_RAMDISK }, + { "args-elf", 0, NULL, OPT_ARGS_ELF }, + { "args-linux", 0, NULL, OPT_ARGS_LINUX }, + { "args-none", 0, NULL, OPT_ARGS_NONE }, + { 0, 0, NULL, 0 }, + }; + + static const char short_options[] = KEXEC_OPT_STR ""; + + /* + * Parse the command line arguments + */ + arg_style = ARG_STYLE_ELF; + command_line = 0; + ramdisk = 0; + while((opt = getopt_long(argc, argv, short_options, options, 0)) != -1) { + switch(opt) { + default: + /* Ignore core options */ + if (opt < OPT_ARCH_MAX) { + break; + } + case '?': + usage(); + return -1; + case OPT_APPEND: + command_line = optarg; + break; + case OPT_RAMDISK: + ramdisk = optarg; + break; + case OPT_ARGS_ELF: + arg_style = ARG_STYLE_ELF; + break; + case OPT_ARGS_LINUX: + arg_style = ARG_STYLE_LINUX; + break; + case OPT_ARGS_NONE: +#ifdef __i386___ + arg_style = ARG_STYLE_NONE; +#else + die("--args-none only works on arch i386\n"); +#endif + break; + } + } + command_line_len = 0; + if (command_line) { + command_line_len = strlen(command_line) +1; + } + + /* Load the ELF executable */ + elf_exec_build_load(info, &ehdr, buf, len); + + entry = ehdr.e_entry; + max_addr = elf_max_addr(&ehdr); + + /* Do we want arguments? */ + if (arg_style != ARG_STYLE_NONE) { + /* Load the setup code */ + elf_rel_build_load(info, &info->rhdr, purgatory, purgatory_size, + 0, ULONG_MAX, 1); + } + if (arg_style == ARG_STYLE_NONE) { + info->entry = (void *)entry; + + } + else if (arg_style == ARG_STYLE_ELF) { + unsigned long note_base; + struct entry32_regs regs; + uint32_t arg1, arg2; + + /* Setup the ELF boot notes */ + note_base = elf_boot_notes(info, max_addr, + command_line, command_line_len); + + /* Initialize the stack arguments */ + arg2 = 0; /* No return address */ + arg1 = note_base; + elf_rel_set_symbol(&info->rhdr, "stack_arg32_1", &arg1, sizeof(arg1)); + elf_rel_set_symbol(&info->rhdr, "stack_arg32_2", &arg2, sizeof(arg2)); + + /* Initialize the registers */ + elf_rel_get_symbol(&info->rhdr, "entry32_regs", ®s, sizeof(regs)); + regs.eip = entry; /* The entry point */ + regs.esp = elf_rel_get_addr(&info->rhdr, "stack_arg32_2"); + elf_rel_set_symbol(&info->rhdr, "entry32_regs", ®s, sizeof(regs)); + + if (ramdisk) { + die("Ramdisks not supported with generic elf arguments"); + } + } + else if (arg_style == ARG_STYLE_LINUX) { + struct x86_linux_faked_param_header *hdr; + unsigned long param_base; + const unsigned char *ramdisk_buf; + off_t ramdisk_length; + struct entry32_regs regs; + + /* Get the linux parameter header */ + hdr = xmalloc(sizeof(*hdr)); + param_base = add_buffer(info, hdr, sizeof(*hdr), sizeof(*hdr), + 16, 0, max_addr, 1); + + /* Initialize the parameter header */ + memset(hdr, 0, sizeof(*hdr)); + init_linux_parameters(&hdr->hdr); + + /* Add a ramdisk to the current image */ + ramdisk_buf = NULL; + ramdisk_length = 0; + if (ramdisk) { + unsigned char *ramdisk_buf; + ramdisk_buf = slurp_file(ramdisk, &ramdisk_length); + } + + /* Tell the kernel what is going on */ + setup_linux_bootloader_parameters(info, &hdr->hdr, param_base, + offsetof(struct x86_linux_faked_param_header, command_line), + command_line, command_line_len, + ramdisk_buf, ramdisk_length); + + /* Fill in the information bios calls would usually provide */ + setup_linux_system_parameters(&hdr->hdr); + + /* Initialize the registers */ + elf_rel_get_symbol(&info->rhdr, "entry32_regs", ®s, sizeof(regs)); + regs.ebx = 0; /* Bootstrap processor */ + regs.esi = param_base; /* Pointer to the parameters */ + regs.eip = entry; /* The entry point */ + regs.esp = elf_rel_get_addr(&info->rhdr, "stack_end"); /* Stack, unused */ + elf_rel_set_symbol(&info->rhdr, "entry32_regs", ®s, sizeof(regs)); + } + else { + die("Unknown argument style\n"); + } + return 0; +} diff --git a/kexec/arch/i386/kexec-multiboot-x86.c b/kexec/arch/i386/kexec-multiboot-x86.c new file mode 100644 index 00000000..0efefc9a --- /dev/null +++ b/kexec/arch/i386/kexec-multiboot-x86.c @@ -0,0 +1,393 @@ +/* + * kexec-multiboot-x86.c + * + * (partial) multiboot support for kexec. Only supports ELF32 + * kernels, and a subset of the multiboot info page options + * (i.e. enough to boot the Xen hypervisor). + * + * TODO: + * - smarter allocation of new segments + * - proper support for the MULTIBOOT_VIDEO_MODE bit + * - support for the MULTIBOOT_AOUT_KLUDGE bit + * + * + * Copyright (C) 2003 Tim Deegan (tjd21 at cl.cam.ac.uk) + * + * Parts based on GNU GRUB, Copyright (C) 2000 Free Software Foundation, Inc + * Parts copied from kexec-elf32-x86.c, written by Eric Biederman + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of the + * License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA + * 02111-1307, USA. + * + */ + +#define _GNU_SOURCE +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <errno.h> +#include <limits.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/mman.h> +#include <fcntl.h> +#include <unistd.h> +#include <getopt.h> +#include <elf.h> +#include <boot/elf_boot.h> +#include <asm/page.h> +#include <ip_checksum.h> +#include "../../kexec.h" +#include "../../kexec-elf.h" +#include "kexec-x86.h" +#include <arch/options.h> + +/* From GNU GRUB */ +#include <x86/mb_header.h> +#include <x86/mb_info.h> + +/* Static storage */ +static char headerbuf[MULTIBOOT_SEARCH]; +static struct multiboot_header *mbh = NULL; + +#define BOOTLOADER "kexec" +#define BOOTLOADER_VERSION VERSION +#define MIN(_x,_y) (((_x)<=(_y))?(_x):(_y)) + + +int multiboot_x86_probe(const char *buf, off_t buf_len) +/* Is it a good idea to try booting this file? */ +{ + int i, len; + /* First of all, check that this is an ELF file */ + if ((i=elf_x86_probe(buf, buf_len)) < 0) { + return i; + } + /* Now look for a multiboot header in the first 8KB */ + len = MULTIBOOT_SEARCH; + if (len > buf_len) { + len = buf_len; + } + memcpy(headerbuf, buf, len); + if (len < 12) { + /* Short file */ + return -1; + } + for (i = 0; i <= (len - 12); i += 4) + { + /* Search for a multiboot header */ + mbh = (struct multiboot_header *)(headerbuf + i); + if (mbh->magic != MULTIBOOT_MAGIC + || ((mbh->magic+mbh->flags+mbh->checksum) & 0xffffffff)) + { + /* Not a multiboot header */ + continue; + } + if (mbh->flags & MULTIBOOT_AOUT_KLUDGE) { + /* Requires options we don't support */ + fprintf(stderr, + "Found a multiboot header, but it uses " + "a non-ELF header layout,\n" + "and I can't do that (yet). Sorry.\n"); + return -1; + } + if (mbh->flags & MULTIBOOT_UNSUPPORTED) { + /* Requires options we don't support */ + fprintf(stderr, + "Found a multiboot header, but it " + "requires multiboot options that I\n" + "don't understand. Sorry.\n"); + return -1; + } + if (mbh->flags & MULTIBOOT_VIDEO_MODE) { + /* Asked for screen mode information */ + /* XXX carry on regardless */ + fprintf(stderr, + "BEWARE! Found a multiboot header which asks " + "for screen mode information.\n" + "BEWARE! I am NOT supplying screen mode " + "information, but loading it regardless.\n"); + + } + /* Bootable */ + return 0; + } + /* Not multiboot */ + return -1; +} + + +void multiboot_x86_usage(void) +/* Multiboot-specific options */ +{ + printf(" --command-line=STRING Set the kernel command line to STRING.\n"); + printf(" --module=\"MOD arg1 arg2...\" Load module MOD with command-line \"arg1...\"\n"); + printf(" (can be used multiple times).\n"); +} + +int multiboot_x86_load(int argc, char **argv, const char *buf, off_t len, + struct kexec_info *info) +/* Marshal up a multiboot-style kernel */ +{ + struct multiboot_info *mbi; + void *mbi_buf; + struct mod_list *modp; + unsigned long freespace; + unsigned long long mem_lower = 0, mem_upper = 0; + struct mem_ehdr ehdr; + unsigned long mbi_base; + struct entry32_regs regs; + size_t mbi_bytes, mbi_offset; + const char *command_line=NULL; + char *imagename, *cp; + struct memory_range *range; + int ranges; + struct AddrRangeDesc *mmap; + int command_line_len; + int i; + int opt; + int modules, mod_command_line_space; +#define OPT_CL (OPT_ARCH_MAX+0) +#define OPT_MOD (OPT_ARCH_MAX+1) +#define OPT_VGA (OPT_ARCH_MAX+2) + static const struct option options[] = { + KEXEC_ARCH_OPTIONS + { "command-line", 1, 0, OPT_CL }, + { "append", 1, 0, OPT_CL }, + { "module", 1, 0, OPT_MOD }, + { 0, 0, 0, 0 }, + }; + static const char short_options[] = KEXEC_ARCH_OPT_STR ""; + + /* Probe for the MB header if it's not already found */ + if (mbh == NULL && multiboot_x86_probe(buf, len) != 1) + { + fprintf(stderr, "Cannot find a loadable multiboot header.\n"); + return -1; + } + + + /* Parse the command line */ + command_line = ""; + command_line_len = 0; + modules = 0; + mod_command_line_space = 0; + while((opt = getopt_long(argc, argv, short_options, options, 0)) != -1) + { + switch(opt) { + default: + /* Ignore core options */ + if (opt < OPT_ARCH_MAX) { + break; + } + case '?': + usage(); + return -1; + case OPT_CL: + command_line = optarg; + break; + case OPT_MOD: + modules++; + mod_command_line_space += strlen(optarg) + 1; + break; + } + } + imagename = argv[optind]; + command_line_len = strlen(command_line) + strlen(imagename) + 2; + + + + /* Load the ELF executable */ + elf_exec_build_load(info, &ehdr, buf, len); + + /* Load the setup code */ + elf_rel_build_load(info, &info->rhdr, purgatory, purgatory_size, 0, ULONG_MAX, 1); + + /* The first segment will contain the multiboot headers: + * ============= + * multiboot information (mbi) + * ------------- + * kernel command line + * ------------- + * bootloader name + * ------------- + * module information entries + * ------------- + * module command lines + * ============== + */ + mbi_bytes = (sizeof(*mbi) + command_line_len + + strlen (BOOTLOADER " " BOOTLOADER_VERSION) + 1 + + 3) & ~3; + mbi_buf = xmalloc(mbi_bytes); + mbi = mbi_buf; + memset(mbi, 0, sizeof(*mbi)); + sprintf(((char *)mbi) + sizeof(*mbi), "%s %s", + imagename, command_line); + sprintf(((char *)mbi) + sizeof(*mbi) + command_line_len, "%s", + BOOTLOADER " " BOOTLOADER_VERSION); + mbi->flags = MB_INFO_CMDLINE | MB_INFO_BOOT_LOADER_NAME; + /* We'll relocate these to absolute addresses later. For now, + * all addresses within the first segment are relative to the + * start of the MBI. */ + mbi->cmdline = sizeof(*mbi); + mbi->boot_loader_name = sizeof(*mbi) + command_line_len; + + /* Memory map */ + if ((get_memory_ranges(&range, &ranges) < 0) || ranges == 0) { + fprintf(stderr, "Cannot get memory information\n"); + return -1; + } + mmap = xmalloc(ranges * sizeof(*mmap)); + for (i=0; i<ranges; i++) { + unsigned long long length; + length = range[i].end - range[i].start; + /* Translate bzImage mmap to multiboot-speak */ + mmap[i].size = sizeof(mmap[i]) - 4; + mmap[i].base_addr_low = range[i].start & 0xffffffff; + mmap[i].base_addr_high = range[i].start >> 32; + mmap[i].length_low = length & 0xffffffff; + mmap[i].length_high = length >> 32; + if (range[i].type == RANGE_RAM) { + mmap[i].Type = 1; /* RAM */ + /* Is this the "low" memory? */ + if ((range[i].start == 0) + && (range[i].end > mem_lower)) + mem_lower = range[i].end; + /* Is this the "high" memory? */ + if ((range[i].start <= 0x100000) + && (range[i].end > mem_upper + 0x100000)) + mem_upper = range[i].end - 0x100000; + } + else + mmap[i].Type = 0xbad; /* Not RAM */ + } + + + if (mbh->flags & MULTIBOOT_MEMORY_INFO) { + /* Provide a copy of the memory map to the kernel */ + + mbi->flags |= MB_INFO_MEMORY | MB_INFO_MEM_MAP; + + freespace = add_buffer(info, + mmap, ranges * sizeof(*mmap), ranges * sizeof(*mmap), + 4, 0, 0xFFFFFFFFUL, 1); + + mbi->mmap_addr = freespace; + mbi->mmap_length = ranges * sizeof(*mmap); + + /* For kernels that care naught for fancy memory maps + * and just want the size of low and high memory */ + mbi->mem_lower = MIN(mem_lower>>10, 0xffffffff); + mbi->mem_upper = MIN(mem_upper>>10, 0xffffffff); + + /* done */ + } + + + /* Load modules */ + if (modules) { + char *mod_filename, *mod_command_line, *mod_clp, *buf; + off_t mod_size; + + /* We'll relocate this to an absolute address later */ + mbi->mods_addr = mbi_bytes; + mbi->mods_count = 0; + mbi->flags |= MB_INFO_MODS; + + /* Add room for the module descriptors to the MBI buffer */ + mbi_bytes += (sizeof(*modp) * modules) + + mod_command_line_space; + mbi_buf = xrealloc(mbi_buf, mbi_bytes); + + /* mbi might have moved */ + mbi = mbi_buf; + /* module descriptors go in the newly added space */ + modp = ((void *)mbi) + mbi->mods_addr; + /* module command lines go after the descriptors */ + mod_clp = ((void *)modp) + (sizeof(*modp) * modules); + + /* Go back and parse the module command lines */ + optind = opterr = 1; + while((opt = getopt_long(argc, argv, + short_options, options, 0)) != -1) + { + if (opt != OPT_MOD) continue; + + /* Split module filename from command line */ + mod_command_line = mod_filename = optarg; + if ((cp = strchr(mod_filename, ' ')) != NULL) { + /* See as I discard the 'const' modifier */ + *cp = '\0'; + } + + /* Load the module */ + buf = slurp_decompress_file(mod_filename, &mod_size); + + if (cp != NULL) *cp = ' '; + + /* Pick the next aligned spot to load it in */ + freespace = add_buffer(info, + buf, mod_size, mod_size, + PAGE_SIZE, 0, 0xffffffffUL, 1); + + /* Add the module command line */ + sprintf(mod_clp, "%s", mod_command_line); + + modp->mod_start = freespace; + modp->mod_end = freespace + mod_size; + modp->cmdline = (void *)mod_clp - (void *)mbi; + modp->pad = 0; + + /* Done */ + mbi->mods_count++; + mod_clp += strlen(mod_clp) + 1; + modp++; + } + + } + + + /* Find a place for the MBI to live */ + if (sort_segments(info) < 0) { + return -1; + } + mbi_base = add_buffer(info, + mbi_buf, mbi_bytes, mbi_bytes, 4, 0, 0xFFFFFFFFUL, 1); + + /* Relocate offsets in the MBI to absolute addresses */ + mbi_offset = mbi_base; + modp = ((void *)mbi) + mbi->mods_addr; + for (i=0; i<mbi->mods_count; i++) { + modp[i].cmdline += mbi_offset; + } + mbi->mods_addr += mbi_offset; + mbi->cmdline += mbi_offset; + mbi->boot_loader_name += mbi_offset; + + /* Specify the initial CPU state and copy the setup code */ + elf_rel_get_symbol(&info->rhdr, "entry32_regs", ®s, sizeof(regs)); + regs.eax = 0x2BADB002; + regs.ebx = mbi_offset; + regs.eip = ehdr.e_entry; + elf_rel_set_symbol(&info->rhdr, "entry32_regs", ®s, sizeof(regs)); + + return 0; +} + +/* + * EOF (kexec-multiboot-x86.c) + */ + diff --git a/kexec/arch/i386/kexec-nbi.c b/kexec/arch/i386/kexec-nbi.c new file mode 100644 index 00000000..00ba1c18 --- /dev/null +++ b/kexec/arch/i386/kexec-nbi.c @@ -0,0 +1,249 @@ +/* + * kexec: Linux boots Linux + * + * Copyright (C) 2005 Eric Biederman (ebiederm@xmission.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation (version 2 of the License). + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ +#define _GNU_SOURCE +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <errno.h> +#include <limits.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/mman.h> +#include <fcntl.h> +#include <unistd.h> +#include <getopt.h> +#include <elf.h> +#include "../../kexec.h" +#include "../../kexec-elf.h" +#include "../../kexec-elf-boot.h" +#include "kexec-x86.h" +#include <arch/options.h> + +struct segheader +{ + uint8_t length; + uint8_t vendortag; + uint8_t reserved; + uint8_t flags; +#define NBI_SEG 0x3 +#define NBI_SEG_ABSOLUTE 0 +#define NBI_SEG_APPEND 1 +#define NBI_SEG_NEGATIVE 2 +#define NBI_SEG_PREPEND 3 +#define NBI_LAST_SEG (1 << 2) + uint32_t loadaddr; + uint32_t imglength; + uint32_t memlength; +}; + +struct imgheader +{ +#define NBI_MAGIC "\x36\x13\x03\x1b" + uint8_t magic[4]; +#define NBI_RETURNS (1 << 8) +#define NBI_ENTRY32 (1 << 31) + uint32_t length; /* and flags */ + struct { uint16_t bx, ds; } segoff; + union { + struct { uint16_t ip, cs; } segoff; + uint32_t linear; + } execaddr; +}; + + +static const int probe_debug = 0; + +int nbi_probe(const char *buf, off_t len) +{ + struct imgheader hdr; + struct segheader seg; + off_t seg_off; + /* If we don't have enough data give up */ + if ((len < sizeof(hdr)) || (len < 512)) { + return -1; + } + memcpy(&hdr, buf, sizeof(hdr)); + if (memcmp(hdr.magic, NBI_MAGIC, sizeof(hdr.magic)) != 0) { + return -1; + } + /* Ensure we have a properly sized header */ + if (((hdr.length & 0xf)*4) != sizeof(hdr)) { + if (probe_debug) { + fprintf(stderr, "NBI: Bad vendor header size\n"); + } + return -1; + } + /* Ensure the vendor header is not too large. + * This can't actually happen but.... + */ + if ((((hdr.length & 0xf0) >> 4)*4) > (512 - sizeof(hdr))) { + if (probe_debug) { + fprintf(stderr, "NBI: vendor headr too large\n"); + } + return -1; + } + /* Reserved bits are set in the image... */ + if ((hdr.length & 0x7ffffe00)) { + if (probe_debug) { + fprintf(stderr, "NBI: Reserved header bits set\n"); + } + return -1; + } + /* If the image can return refuse to load it */ + if (hdr.length & (1 << 8)) { + if (probe_debug) { + printf("NBI: image wants to return\n"); + } + return -1; + } + /* Now verify the segments all fit within 512 bytes */ + seg_off = (((hdr.length & 0xf0) >> 4) + (hdr.length & 0x0f)) << 2; + do { + memcpy(&seg, buf + seg_off, sizeof(seg)); + if ((seg.length & 0xf) != 4) { + if (probe_debug) { + fprintf(stderr, "NBI: Invalid segment length\n"); + } + return -1; + } + seg_off += ((seg.length & 0xf) + ((seg.length >> 4) & 0xf)) << 2; + if (seg.flags & 0xf8) { + if (probe_debug) { + fprintf(stderr, "NBI: segment reserved flags set\n"); + } + return -1; + } + if ((seg.flags & NBI_SEG) == NBI_SEG_NEGATIVE) { + if (probe_debug) { + fprintf(stderr, "NBI: negative segment addresses not supported\n"); + } + return -1; + } + if (seg_off > 512) { + if (probe_debug) { + fprintf(stderr, "NBI: segment outside 512 header\n"); + } + return -1; + } + } while(!(seg.flags & NBI_LAST_SEG)); + return 0; +} + +void nbi_usage(void) +{ + printf( "\n" + ); +} + +int nbi_load(int argc, char **argv, const char *buf, off_t len, + struct kexec_info *info) +{ + struct imgheader hdr; + struct segheader seg; + off_t seg_off; + off_t file_off; + uint32_t last0, last1; + int opt; + + static const struct option options[] = { + KEXEC_ARCH_OPTIONS + { 0, 0, NULL, 0 }, + }; + + static const char short_options[] = KEXEC_OPT_STR ""; + + /* + * Parse the command line arguments + */ + while((opt = getopt_long(argc, argv, short_options, options, 0)) != -1) { + switch(opt) { + default: + /* Ignore core options */ + if (opt < OPT_ARCH_MAX) { + break; + } + case '?': + usage(); + return -1; + break; + } + } + /* Get a copy of the header */ + memcpy(&hdr, buf, sizeof(hdr)); + + /* Load the first 512 bytes */ + add_segment(info, buf + 0, 512, + (hdr.segoff.ds << 4) + hdr.segoff.bx, 512); + + /* Initialize variables */ + file_off = 512; + last0 = (hdr.segoff.ds << 4) + hdr.segoff.bx; + last1 = last0 + 512; + + /* Load the segments */ + seg_off = (((hdr.length & 0xf0) >> 4) + (hdr.length & 0x0f)) << 2; + do { + uint32_t loadaddr; + memcpy(&seg, buf + seg_off, sizeof(seg)); + seg_off += ((seg.length & 0xf) + ((seg.length >> 4) & 0xf)) << 2; + if ((seg.flags & NBI_SEG) == NBI_SEG_ABSOLUTE) { + loadaddr = seg.loadaddr; + } + else if ((seg.flags & NBI_SEG) == NBI_SEG_APPEND) { + loadaddr = last1 + seg.loadaddr; + } +#if 0 + else if ((seg.flags & NBI_SEG) == NBI_SEG_NEGATIVE) { + loadaddr = memsize - seg.loadaddr; + } +#endif + else if ((seg.flags & NBI_SEG) == NBI_SEG_PREPEND) { + loadaddr = last0 - seg.loadaddr; + } + add_segment(info, buf + file_off, seg.imglength, + loadaddr, seg.memlength); + last0 = loadaddr; + last1 = last0 + seg.memlength; + file_off += seg.imglength; + } while(!(seg.flags & NBI_LAST_SEG)); + + if (hdr.length & NBI_ENTRY32) { + struct entry32_regs regs32; + /* Initialize the registers */ + elf_rel_get_symbol(&info->rhdr, "entry32_regs32", ®s32, sizeof(regs32)); + regs32.eip = hdr.execaddr.linear; + elf_rel_set_symbol(&info->rhdr, "entry32_regs32", ®s32, sizeof(regs32)); + } + else { + struct entry32_regs regs32; + struct entry16_regs regs16; + + /* Initialize the 16 bit registers */ + elf_rel_get_symbol(&info->rhdr, "entry16_regs", ®s16, sizeof(regs16)); + regs16.cs = hdr.execaddr.segoff.cs; + regs16.ip = hdr.execaddr.segoff.ip; + elf_rel_set_symbol(&info->rhdr, "entry16_regs", ®s16, sizeof(regs16)); + + /* Initialize the 32 bit registers */ + elf_rel_get_symbol(&info->rhdr, "entry32_regs", ®s32, sizeof(regs32)); + regs32.eip = elf_rel_get_addr(&info->rhdr, "entry16"); + elf_rel_set_symbol(&info->rhdr, "entry32_regs", ®s32, sizeof(regs32)); + } + return 0; +} diff --git a/kexec/arch/i386/kexec-x86.c b/kexec/arch/i386/kexec-x86.c new file mode 100644 index 00000000..31ea17b5 --- /dev/null +++ b/kexec/arch/i386/kexec-x86.c @@ -0,0 +1,262 @@ +/* + * kexec: Linux boots Linux + * + * Copyright (C) 2003-2005 Eric Biederman (ebiederm@xmission.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation (version 2 of the License). + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <stddef.h> +#include <stdio.h> +#include <errno.h> +#include <stdint.h> +#include <string.h> +#include <limits.h> +#include <stdlib.h> +#include <getopt.h> +#include <sys/utsname.h> +#include "../../kexec.h" +#include "../../kexec-elf.h" +#include "../../kexec-syscall.h" +#include "kexec-x86.h" +#include <arch/options.h> + +#define MAX_MEMORY_RANGES 64 +#define MAX_LINE 160 +static struct memory_range memory_range[MAX_MEMORY_RANGES]; + +/* Return a sorted list of memory ranges. */ +int get_memory_ranges(struct memory_range **range, int *ranges) +{ + const char iomem[]= "/proc/iomem"; + int memory_ranges = 0; + char line[MAX_LINE]; + FILE *fp; + fp = fopen(iomem, "r"); + if (!fp) { + fprintf(stderr, "Cannot open %s: %s\n", + iomem, strerror(errno)); + return -1; + } + while(fgets(line, sizeof(line), fp) != 0) { + unsigned long long start, end; + char *str; + int type; + int consumed; + int count; + if (memory_ranges >= MAX_MEMORY_RANGES) + break; + count = sscanf(line, "%Lx-%Lx : %n", + &start, &end, &consumed); + if (count != 2) + continue; + str = line + consumed; + end = end + 1; +#if 0 + printf("%016Lx-%016Lx : %s", + start, end, str); +#endif + if (memcmp(str, "System RAM\n", 11) == 0) { + type = RANGE_RAM; + } + else if (memcmp(str, "reserved\n", 9) == 0) { + type = RANGE_RESERVED; + } + else if (memcmp(str, "ACPI Tables\n", 12) == 0) { + type = RANGE_ACPI; + } + else if (memcmp(str, "ACPI Non-volatile Storage\n", 26) == 0) { + type = RANGE_ACPI_NVS; + } + else { + continue; + } + /* Don't report the interrupt table as ram */ + if (type == RANGE_RAM && (start < 0x100)) { + start = 0x100; + } + memory_range[memory_ranges].start = start; + memory_range[memory_ranges].end = end; + memory_range[memory_ranges].type = type; +#if 0 + printf("%016Lx-%016Lx : %x\n", + start, end, type); +#endif + memory_ranges++; + } + fclose(fp); + *range = memory_range; + *ranges = memory_ranges; + return 0; +} + +struct file_type file_type[] = { + { "multiboot-x86", multiboot_x86_probe, multiboot_x86_load, + multiboot_x86_usage }, + { "elf-x86", elf_x86_probe, elf_x86_load, elf_x86_usage }, + { "bzImage", bzImage_probe, bzImage_load, bzImage_usage }, + { "beoboot-x86", beoboot_probe, beoboot_load, beoboot_usage }, + { "nbi-x86", nbi_probe, nbi_load, nbi_usage }, +}; +int file_types = sizeof(file_type)/sizeof(file_type[0]); + + +void arch_usage(void) +{ + printf( + " --reset-vga Attempt to reset a standard vga device\n" + " --serial=<port> Specify the serial port for debug output\n" + " --serial-baud=<buad_rate> Specify the serial port baud rate\n" + " --console-vga Enable the vga console\n" + " --console-serial Enable the serial console\n" + ); +} + +static struct { + uint8_t reset_vga; + uint16_t serial_base; + uint32_t serial_baud; + uint8_t console_vga; + uint8_t console_serial; +} arch_options = { + .reset_vga = 0, + .serial_base = 0x3f8, + .serial_baud = 0, + .console_vga = 0, + .console_serial = 0, +}; + +int arch_process_options(int argc, char **argv) +{ + static const struct option options[] = { + KEXEC_ARCH_OPTIONS + { 0, 0, NULL, 0 }, + }; + static const char short_options[] = KEXEC_ARCH_OPT_STR; + int opt; + unsigned long value; + char *end; + + opterr = 0; /* Don't complain about unrecognized options here */ + while((opt = getopt_long(argc, argv, short_options, options, 0)) != -1) { + switch(opt) { + default: + break; + case OPT_RESET_VGA: + arch_options.reset_vga = 1; + break; + case OPT_CONSOLE_VGA: + arch_options.console_vga = 1; + break; + case OPT_CONSOLE_SERIAL: + arch_options.console_serial = 1; + break; + case OPT_SERIAL: + value = ULONG_MAX; + if (strcmp(optarg, "ttyS0") == 0) { + value = 0x3f8; + } + else if (strcmp(optarg, "ttyS1") == 0) { + value = 0x2f8; + } + else if (strncmp(optarg, "0x", 2) == 0) { + value = strtoul(optarg +2, &end, 16); + if (*end != '\0') { + value = ULONG_MAX; + } + } + if (value >= 65536) { + fprintf(stderr, "Bad serial port base '%s'\n", + optarg); + usage(); + return -1; + + } + arch_options.serial_base = value; + break; + case OPT_SERIAL_BAUD: + value = strtoul(optarg, &end, 0); + if ((value > 115200) || ((115200 %value) != 0) || + (value < 9600) || (*end)) + { + fprintf(stderr, "Bad serial port baud rate '%s'\n", + optarg); + usage(); + return -1; + + } + arch_options.serial_baud = value; + break; + } + } + /* Reset getopt for the next pass; called in other source modules */ + opterr = 1; + optind = 1; + return 0; +} + +int arch_compat_trampoline(struct kexec_info *info, unsigned long *flags) +{ + int result; + struct utsname utsname; + result = uname(&utsname); + if (result < 0) { + fprintf(stderr, "uname failed: %s\n", + strerror(errno)); + return -1; + } + if ( (strcmp(utsname.machine, "i386") == 0) || + (strcmp(utsname.machine, "i486") == 0) || + (strcmp(utsname.machine, "i586") == 0) || + (strcmp(utsname.machine, "i686") == 0)) + { + /* For compatibility with older patches + * use KEXEC_ARCH_DEFAULT instead of KEXEC_ARCH_386 here. + */ + *flags |= KEXEC_ARCH_DEFAULT; + } + else if (strcmp(utsname.machine, "x86_64") == 0) + { + *flags |= KEXEC_ARCH_X86_64; + if (!info->rhdr.e_shdr) { + fprintf(stderr, + "A trampoline is required for cross architecture support\n"); + return -1; + } + elf_rel_set_symbol(&info->rhdr, "compat_x86_64_entry32", + &info->entry, sizeof(info->entry)); + + info->entry = elf_rel_get_addr(&info->rhdr, "compat_x86_64"); + } + else { + fprintf(stderr, "Unsupported machine type: %s\n", + utsname.machine); + return -1; + } + return 0; +} + +void arch_update_purgatory(struct kexec_info *info) +{ + elf_rel_set_symbol(&info->rhdr, "reset_vga", + &arch_options.reset_vga, sizeof(arch_options.reset_vga)); + elf_rel_set_symbol(&info->rhdr, "serial_base", + &arch_options.serial_base, sizeof(arch_options.serial_base)); + elf_rel_set_symbol(&info->rhdr, "serial_baud", + &arch_options.serial_baud, sizeof(arch_options.serial_baud)); + elf_rel_set_symbol(&info->rhdr, "console_vga", + &arch_options.console_vga, sizeof(arch_options.console_vga)); + elf_rel_set_symbol(&info->rhdr, "console_serial", + &arch_options.console_serial, sizeof(arch_options.console_serial)); +} diff --git a/kexec/arch/i386/kexec-x86.h b/kexec/arch/i386/kexec-x86.h new file mode 100644 index 00000000..a21fad54 --- /dev/null +++ b/kexec/arch/i386/kexec-x86.h @@ -0,0 +1,67 @@ +#ifndef KEXEC_X86_H +#define KEXEC_X86_H + +extern unsigned char compat_x86_64[]; +extern uint32_t compat_x86_64_size, compat_x86_64_entry32; + +struct entry32_regs { + uint32_t eax; + uint32_t ebx; + uint32_t ecx; + uint32_t edx; + uint32_t esi; + uint32_t edi; + uint32_t esp; + uint32_t ebp; + uint32_t eip; +}; + +struct entry16_regs { + uint32_t eax; + uint32_t ebx; + uint32_t ecx; + uint32_t edx; + uint32_t esi; + uint32_t edi; + uint32_t esp; + uint32_t ebp; + uint16_t ds; + uint16_t es; + uint16_t ss; + uint16_t fs; + uint16_t gs; + uint16_t ip; + uint16_t cs; + uint16_t pad; +}; + +int multiboot_x86_probe(const char *buf, off_t len); +int multiboot_x86_load(int argc, char **argv, const char *buf, off_t len, + struct kexec_info *info); +void multiboot_x86_usage(void); + +int elf_x86_probe(const char *buf, off_t len); +int elf_x86_load(int argc, char **argv, const char *buf, off_t len, + struct kexec_info *info); +void elf_x86_usage(void); + +int bzImage_probe(const char *buf, off_t len); +int bzImage_load(int argc, char **argv, const char *buf, off_t len, + struct kexec_info *info); +void bzImage_usage(void); +int do_bzImage_load(struct kexec_info *info, + const char *kernel, off_t kernel_len, + const char *command_line, off_t command_line_len, + const char *initrd, off_t initrd_len, + int real_mode_entry, int debug); + +int beoboot_probe(const char *buf, off_t len); +int beoboot_load(int argc, char **argv, const char *buf, off_t len, + struct kexec_info *info); +void beoboot_usage(void); + +int nbi_probe(const char *buf, off_t len); +int nbi_load(int argc, char **argv, const char *buf, off_t len, + struct kexec_info *info); +void nbi_usage(void); +#endif /* KEXEC_X86_H */ diff --git a/kexec/arch/i386/x86-linux-setup.c b/kexec/arch/i386/x86-linux-setup.c new file mode 100644 index 00000000..80a156a4 --- /dev/null +++ b/kexec/arch/i386/x86-linux-setup.c @@ -0,0 +1,178 @@ +/* + * kexec: Linux boots Linux + * + * Copyright (C) 2003,2004 Eric Biederman (ebiederm@xmission.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation (version 2 of the License). + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ +#define _GNU_SOURCE +#include <stdint.h> +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <errno.h> +#include <limits.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/mman.h> +#include <fcntl.h> +#include <unistd.h> +#include <x86/x86-linux.h> +#include "../../kexec.h" +#include "kexec-x86.h" +#include "x86-linux-setup.h" + +void init_linux_parameters(struct x86_linux_param_header *real_mode) +{ + /* Fill in the values that are usually provided by the kernel. */ + + /* Boot block magic */ + memcpy(real_mode->header_magic, "HdrS", 4); + real_mode->protocol_version = 0x0203; + real_mode->initrd_addr_max = DEFAULT_INITRD_ADDR_MAX; +} + +void setup_linux_bootloader_parameters( + struct kexec_info *info, struct x86_linux_param_header *real_mode, + unsigned long real_mode_base, unsigned long cmdline_offset, + const char *cmdline, off_t cmdline_len, + const unsigned char *initrd_buf, off_t initrd_size) +{ + char *cmdline_ptr; + unsigned long initrd_base, initrd_addr_max; + + /* Say I'm a boot loader */ + real_mode->loader_type = LOADER_TYPE_UNKNOWN; + + /* No loader flags */ + real_mode->loader_flags = 0; + + /* Find the maximum initial ramdisk address */ + initrd_addr_max = DEFAULT_INITRD_ADDR_MAX; + if (real_mode->protocol_version >= 0x0203) { + initrd_addr_max = real_mode->initrd_addr_max; + } + + /* Load the initrd if we have one */ + if (initrd_buf) { + initrd_base = add_buffer(info, + initrd_buf, initrd_size, initrd_size, + 4096, INITRD_BASE, initrd_addr_max, -1); + } else { + initrd_base = 0; + initrd_size = 0; + } + + /* Ramdisk address and size */ + real_mode->initrd_start = initrd_base; + real_mode->initrd_size = initrd_size; + + /* The location of the command line */ + /* if (real_mode_base == 0x90000) { */ + real_mode->cl_magic = CL_MAGIC_VALUE; + real_mode->cl_offset = cmdline_offset; + /* setup_move_size */ + /* } */ + if (real_mode->protocol_version >= 0x0202) { + real_mode->cmd_line_ptr = real_mode_base + cmdline_offset; + } + + /* Fill in the command line */ + if (cmdline_len > COMMAND_LINE_SIZE) { + cmdline_len = COMMAND_LINE_SIZE; + } + cmdline_ptr = ((char *)real_mode) + cmdline_offset; + memcpy(cmdline_ptr, cmdline, cmdline_len); + cmdline_ptr[cmdline_len - 1] = '\0'; +} + +void setup_linux_system_parameters(struct x86_linux_param_header *real_mode) +{ + /* Fill in information the BIOS would usually provide */ + struct memory_range *range; + int i, ranges; + + /* Default screen size */ + real_mode->orig_x = 0; + real_mode->orig_y = 0; + real_mode->orig_video_page = 0; + real_mode->orig_video_mode = 0; + real_mode->orig_video_cols = 80; + real_mode->orig_video_lines = 25; + real_mode->orig_video_ega_bx = 0; + real_mode->orig_video_isVGA = 1; + real_mode->orig_video_points = 16; + + /* Fill in the memsize later */ + real_mode->ext_mem_k = 0; + real_mode->alt_mem_k = 0; + real_mode->e820_map_nr = 0; + + /* Default APM info */ + memset(&real_mode->apm_bios_info, 0, sizeof(real_mode->apm_bios_info)); + /* Default drive info */ + memset(&real_mode->drive_info, 0, sizeof(real_mode->drive_info)); + /* Default sysdesc table */ + real_mode->sys_desc_table.length = 0; + + /* default yes: this can be overridden on the command line */ + real_mode->mount_root_rdonly = 0xFFFF; + + /* default /dev/hda + * this can be overrident on the command line if necessary. + */ + real_mode->root_dev = (0x3 <<8)| 0; + + /* another safe default */ + real_mode->aux_device_info = 0; + + /* Fill in the memory info */ + if ((get_memory_ranges(&range, &ranges) < 0) || ranges == 0) { + die("Cannot get memory information\n"); + } + if (ranges > E820MAX) { + fprintf(stderr, "Too many memory ranges, truncating...\n"); + ranges = E820MAX; + } + real_mode->e820_map_nr = ranges; + for(i = 0; i < ranges; i++) { + real_mode->e820_map[i].addr = range[i].start; + real_mode->e820_map[i].size = range[i].end - range[i].start; + switch (range[i].type) { + case RANGE_RAM: + real_mode->e820_map[i].type = E820_RAM; + break; + case RANGE_ACPI: + real_mode->e820_map[i].type = E820_ACPI; + break; + case RANGE_ACPI_NVS: + real_mode->e820_map[i].type = E820_NVS; + break; + default: + case RANGE_RESERVED: + real_mode->e820_map[i].type = E820_RESERVED; + break; + } + if (range[i].type != RANGE_RAM) + continue; + if ((range[i].start <= 0x100000) && range[i].end > 0x100000) { + unsigned long long mem_k = (range[i].end >> 10) - 0x100000; + real_mode->ext_mem_k = mem_k; + real_mode->alt_mem_k = mem_k; + if (mem_k > 0xfc00) { + real_mode->ext_mem_k = 0xfc00; /* 64M */ + } + if (mem_k > 0xffffffff) { + real_mode->alt_mem_k = 0xffffffff; + } + } + } +} diff --git a/kexec/arch/i386/x86-linux-setup.h b/kexec/arch/i386/x86-linux-setup.h new file mode 100644 index 00000000..79e65f36 --- /dev/null +++ b/kexec/arch/i386/x86-linux-setup.h @@ -0,0 +1,17 @@ +#ifndef X86_LINUX_SETUP_H +#define X86_LINUX_SETUP_H + +void init_linux_parameters(struct x86_linux_param_header *real_mode); +void setup_linux_bootloader_parameters( + struct kexec_info *info, struct x86_linux_param_header *real_mode, + unsigned long real_mode_base, unsigned long cmdline_offset, + const char *cmdline, off_t cmdline_len, + const unsigned char *initrd_buf, off_t initrd_size); +void setup_linux_system_parameters(struct x86_linux_param_header *real_mode); + + +#define SETUP_BASE 0x90000 +#define KERN32_BASE 0x100000 /* 1MB */ +#define INITRD_BASE 0x1000000 /* 16MB */ + +#endif /* X86_LINUX_SETUP_H */ diff --git a/kexec/arch/ia64/Makefile b/kexec/arch/ia64/Makefile new file mode 100644 index 00000000..d5d42e76 --- /dev/null +++ b/kexec/arch/ia64/Makefile @@ -0,0 +1,6 @@ +# +# kexec ia64 (linux booting linux) +# +KEXEC_C_SRCS+= kexec/arch/ia64/kexec-ia64.c +KEXEC_C_SRCS+= kexec/arch/ia64/kexec-elf-ia64.c +KEXEC_C_SRCS+= kexec/arch/ia64/kexec-elf-rel-ia64.c diff --git a/kexec/arch/ia64/include/arch/options.h b/kexec/arch/ia64/include/arch/options.h new file mode 100644 index 00000000..30535762 --- /dev/null +++ b/kexec/arch/ia64/include/arch/options.h @@ -0,0 +1,11 @@ +#ifndef KEXEC_ARCH_IA64_OPTIONS_H +#define KEXEC_ARCH_IA64_OPTIONS_H + +#define OPT_ARCH_MAX (OPT_MAX+0) + +#define KEXEC_ARCH_OPTIONS \ + KEXEC_OPTIONS \ + +#define KEXEC_ARCH_OPT_STR KEXEC_OPT_STR "" + +#endif /* KEXEC_ARCH_IA64_OPTIONS_H */ diff --git a/kexec/arch/ia64/kexec-elf-ia64.c b/kexec/arch/ia64/kexec-elf-ia64.c new file mode 100644 index 00000000..4a91b956 --- /dev/null +++ b/kexec/arch/ia64/kexec-elf-ia64.c @@ -0,0 +1,141 @@ +/* + * kexec: Linux boots Linux + * + * Copyright (C) 2003,2004 Eric Biederman (ebiederm@xmission.com) + * Copyright (C) 2004 Albert Herranz + * Copyright (C) 2004 Silicon Graphics, Inc. + * Jesse Barnes <jbarnes@sgi.com> + * Copyright (C) 2004 Khalid Aziz <khalid.aziz@hp.com> Hewlett Packard Co + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation (version 2 of the License). + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#define _GNU_SOURCE +#include <stddef.h> +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <errno.h> +#include <stdint.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/mman.h> +#include <fcntl.h> +#include <unistd.h> +#include <getopt.h> +#include <elf.h> +#include <boot/elf_boot.h> +#include <ip_checksum.h> +#include "../../kexec.h" +#include "../../kexec-elf.h" +#include <arch/options.h> + +static const int probe_debug = 0; + +/* + * elf_ia64_probe - sanity check the elf image + * + * Make sure that the file image has a reasonable chance of working. + */ +int elf_ia64_probe(const char *buf, off_t len) +{ + struct mem_ehdr ehdr; + int result; + result = build_elf_exec_info(buf, len, &ehdr); + if (result < 0) { + if (probe_debug) { + fprintf(stderr, "Not an ELF executable\n"); + } + return -1; + } + /* Verify the architecuture specific bits */ + if (ehdr.e_machine != EM_IA_64) { + /* for a different architecture */ + if (probe_debug) { + fprintf(stderr, "Not for this architecture.\n"); + } + return -1; + } + return 0; +} + +void elf_ia64_usage(void) +{ + printf( + " --command-line=STRING Set the kernel command line to STRING.\n" + " --append=STRING Set the kernel command line to STRING.\n"); +} + +int elf_ia64_load(int argc, char **argv, const char *buf, off_t len, + struct kexec_info *info) +{ + struct mem_ehdr ehdr; + const char *command_line; + int command_line_len; + unsigned long entry, max_addr; + int result; + int opt; +#define OPT_APPEND (OPT_ARCH_MAX+0) + static const struct option options[] = { + KEXEC_ARCH_OPTIONS + {"command-line", 1, 0, OPT_APPEND}, + {"append", 1, 0, OPT_APPEND}, + {0, 0, 0, 0}, + }; + + static const char short_options[] = KEXEC_ARCH_OPT_STR ""; + + command_line = 0; + while ((opt = getopt_long(argc, argv, short_options, options, 0)) != -1) { + switch (opt) { + default: + /* Ignore core options */ + if (opt < OPT_ARCH_MAX) { + break; + } + case '?': + usage(); + return -1; + case OPT_APPEND: + command_line = optarg; + break; + } + } + command_line_len = 0; + if (command_line) { + command_line_len = strlen(command_line) + 1; + } + + /* Parse the Elf file */ + result = build_elf_exec_info(buf, len, &ehdr); + if (result < 0) { + fprintf(stderr, "ELF parse failed\n"); + free_elf_info(&ehdr); + return result; + } + entry = ehdr.e_entry; + max_addr = elf_max_addr(&ehdr); + + /* Load the Elf data */ + result = elf_exec_load(&ehdr, info); + free_elf_info(&ehdr); + if (result < 0) { + fprintf(stderr, "ELF load failed\n"); + return result; + } + + /* For now we don't have arguments to pass :( */ + info->entry = (void *)entry; + return 0; +} diff --git a/kexec/arch/ia64/kexec-elf-rel-ia64.c b/kexec/arch/ia64/kexec-elf-rel-ia64.c new file mode 100644 index 00000000..eb5f6627 --- /dev/null +++ b/kexec/arch/ia64/kexec-elf-rel-ia64.c @@ -0,0 +1,45 @@ +#include <stdio.h> +#include <elf.h> +#include "../../kexec.h" +#include "../../kexec-elf.h" + +int machine_verify_elf_rel(struct mem_ehdr *ehdr) +{ + if (ehdr->ei_data != ELFDATA2LSB) { + return 0; + } + if (ehdr->ei_class != ELFCLASS64) { + return 0; + } + if (ehdr->e_machine != EM_IA_64) { + return 0; + } + return 1; +} + +void machine_apply_elf_rel(struct mem_ehdr *ehdr, unsigned long r_type, + void *location, unsigned long address, unsigned long value) +{ + switch(r_type) { + case R_IA64_NONE: + break; + case R_IA64_DIR64LSB: + *((uint64_t *)location) = value; + break; + case R_IA64_DIR32LSB: + *((uint32_t *)location) = value; + if (value != *((uint32_t *)location)) + goto overflow; + break; + case R_IA64_PCREL21B: + case R_IA64_LTOFF22: + case R_IA64_SEGREL64LSB: + default: + die("Unknown rela relocation: %lu\n", r_type); + break; + } + return; + overflow: + die("overflow in relocation type %lu val %Lx\n", + r_type, value); +} diff --git a/kexec/arch/ia64/kexec-ia64.c b/kexec/arch/ia64/kexec-ia64.c new file mode 100644 index 00000000..b8763186 --- /dev/null +++ b/kexec/arch/ia64/kexec-ia64.c @@ -0,0 +1,156 @@ +/* + * kexec: Linux boots Linux + * + * Copyright (C) 2003-2005 Eric Biederman (ebiederm@xmission.com) + * Copyright (C) 2004 Albert Herranz + * Copyright (C) 2004 Silicon Graphics, Inc. + * Jesse Barnes <jbarnes@sgi.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation (version 2 of the License). + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#define _GNU_SOURCE +#include <stddef.h> +#include <stdio.h> +#include <errno.h> +#include <stdint.h> +#include <string.h> +#include <getopt.h> +#include <sys/utsname.h> +#include "../../kexec.h" +#include "../../kexec-syscall.h" +#include "kexec-ia64.h" +#include <arch/options.h> + +#define MAX_MEMORY_RANGES 64 +#define MAX_LINE 160 +static struct memory_range memory_range[MAX_MEMORY_RANGES]; + +/* Return a sorted list of available memory ranges. */ +int get_memory_ranges(struct memory_range **range, int *ranges) +{ + int memory_ranges; + /* + * /proc/iomem on ia64 does not show where all memory is. If + * that is fixed up, we can make use of that to validate + * the memory range kernel will be loade din. Until then..... + * -- Khalid Aziz + */ + + /* Note that the ia64 architecture mandates all systems will + * have at least 64MB at 0-64M. The SGI altix does not follow + * that restriction, but a reasonable guess is better than nothing + * at all. + * -- Eric Biederman + */ + fprintf(stderr, "Warning assuming memory at 0-64MB is present\n"); + memory_ranges = 0; + memory_range[memory_ranges].start = 0x00010000; + memory_range[memory_ranges].end = 0x10000000; + memory_range[memory_ranges].type = RANGE_RAM; + memory_ranges++; + *range = memory_range; + *ranges = memory_ranges; + return 0; +} + +/* Supported file types and callbacks */ +struct file_type file_type[] = { + {"elf-ia64", elf_ia64_probe, elf_ia64_load, elf_ia64_usage}, +}; +int file_types = sizeof(file_type) / sizeof(file_type[0]); + + +void arch_usage(void) +{ +} + +static struct { +} arch_options = { +}; +int arch_process_options(int argc, char **argv) +{ + static const struct option options[] = { + KEXEC_ARCH_OPTIONS + { 0, 0, NULL, 0 }, + }; + static const char short_options[] = KEXEC_ARCH_OPT_STR; + int opt; + unsigned long value; + char *end; + + opterr = 0; /* Don't complain about unrecognized options here */ + while((opt = getopt_long(argc, argv, short_options, options, 0)) != -1) { + switch(opt) { + default: + break; + } + } + /* Reset getopt for the next pass; called in other source modules */ + opterr = 1; + optind = 1; + return 0; +} + +int arch_compat_trampoline(struct kexec_info *info, unsigned long *flags) +{ + int result; + struct utsname utsname; + result = uname(&utsname); + if (result < 0) { + fprintf(stderr, "uname failed: %s\n", + strerror(errno)); + return -1; + } + if (strcmp(utsname.machine, "ia64") == 0) + { + *flags |= KEXEC_ARCH_X86_64; + } + else { + fprintf(stderr, "Unsupported machine type: %s\n", + utsname.machine); + return -1; + } + return 0; +} + +int arch_compat_trampoline(struct kexec_info *info, unsigned long *flags) +{ + int result; + struct utsname utsname; + result = uname(&utsname); + if (result < 0) { + fprintf(stderr, "uname failed: %s\n", + strerror(errno)); + return -1; + } + if (strcmp(utsname.machine, "ia64") == 0) + { + /* For compatibility with older patches + * use KEXEC_ARCH_DEFAULT instead of KEXEC_ARCH_IA64 here. + */ + *flags |= KEXEC_ARCH_DEFAULT; + } + else { + fprintf(stderr, "Unsupported machine type: %s\n", + utsname.machine); + return -1; + } + return 0; +} + +void arch_update_purgatory(struct kexec_info *info) +{ +} + diff --git a/kexec/arch/ia64/kexec-ia64.h b/kexec/arch/ia64/kexec-ia64.h new file mode 100644 index 00000000..df49852c --- /dev/null +++ b/kexec/arch/ia64/kexec-ia64.h @@ -0,0 +1,9 @@ +#ifndef KEXEC_IA64_H +#define KEXEC_IA64_H + +int elf_ia64_probe(const char *buf, off_t len); +int elf_ia64_load(int argc, char **argv, const char *buf, off_t len, + struct kexec_info *info); +void elf_ia64_usage(void); + +#endif /* KEXEC_IA64_H */ diff --git a/kexec/arch/ppc/Makefile b/kexec/arch/ppc/Makefile new file mode 100644 index 00000000..972a2f2e --- /dev/null +++ b/kexec/arch/ppc/Makefile @@ -0,0 +1,9 @@ +# +# kexec ppc (linux booting linux) +# +KEXEC_C_SRCS+= kexec/arch/ppc/kexec-ppc.c +KEXEC_C_SRCS+= kexec/arch/ppc/kexec-elf-ppc.c +KEXEC_C_SRCS+= kexec/arch/ppc/kexec-elf-rel-ppc.c +KEXEC_C_SRCS+= kexec/arch/ppc/kexec-dol-ppc.c +KEXEC_S_SRCS+= kexec/arch/ppc/ppc-setup-simple.S +KEXEC_S_SRCS+= kexec/arch/ppc/ppc-setup-dol.S diff --git a/kexec/arch/ppc/include/arch/options.h b/kexec/arch/ppc/include/arch/options.h new file mode 100644 index 00000000..df14db54 --- /dev/null +++ b/kexec/arch/ppc/include/arch/options.h @@ -0,0 +1,11 @@ +#ifndef KEXEC_ARCH_PPC_OPTIONS_H +#define KEXEC_ARCH_PPC_OPTIONS_H + +#define OPT_ARCH_MAX (OPT_MAX+0) + +#define KEXEC_ARCH_OPTIONS \ + KEXEC_OPTIONS \ + +#define KEXEC_ARCH_OPT_STR KEXEC_OPT_STR "" + +#endif /* KEXEC_ARCH_PPC_OPTIONS_H */ diff --git a/kexec/arch/ppc/kexec-dol-ppc.c b/kexec/arch/ppc/kexec-dol-ppc.c new file mode 100644 index 00000000..1b34f2a3 --- /dev/null +++ b/kexec/arch/ppc/kexec-dol-ppc.c @@ -0,0 +1,479 @@ +/* + * kexec-dol-ppc.c - kexec DOL executable loader for the PowerPC + * Copyright (C) 2004 Albert Herranz + * + * This source code is licensed under the GNU General Public License, + * Version 2. See the file COPYING for more details. + */ + +#define _GNU_SOURCE +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <errno.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/mman.h> +#include <fcntl.h> +#include <unistd.h> +#include <getopt.h> +#include <elf.h> +#include <boot/elf_boot.h> +#include <ip_checksum.h> +#include "../../kexec.h" +#include "kexec-ppc.h" +#include <arch/options.h> + +static int debug = 0; + +/* + * I've found out there DOLs with unaligned and/or overlapping sections. + * I assume that sizes of sections can be wrong on these DOLs so I trust + * better start of sections. + * In order to load DOLs, I first extend sections to page aligned boundaries + * and then merge overlapping sections starting from lower addresses. + * -- Albert Herranz + */ + +/* DOL related stuff */ + +#define DOL_HEADER_SIZE 0x100 + +#define DOL_SECT_MAX_TEXT 7 /* text sections */ +#define DOL_SECT_MAX_DATA 11 /* data sections */ +#define DOL_MAX_SECT (DOL_SECT_MAX_TEXT+DOL_SECT_MAX_DATA) + +/* this is the DOL executable header */ +typedef struct { + uint32_t offset_text[DOL_SECT_MAX_TEXT]; /* in the file */ + uint32_t offset_data[DOL_SECT_MAX_DATA]; + uint32_t address_text[DOL_SECT_MAX_TEXT]; /* in memory */ + uint32_t address_data[DOL_SECT_MAX_DATA]; + uint32_t size_text[DOL_SECT_MAX_TEXT]; + uint32_t size_data[DOL_SECT_MAX_DATA]; + uint32_t address_bss; + uint32_t size_bss; + uint32_t entry_point; +} dol_header; + +#define dol_sect_offset(hptr, index) \ + ((index >= DOL_SECT_MAX_TEXT)? \ + hptr->offset_data[index - DOL_SECT_MAX_TEXT] \ + :hptr->offset_text[index]) +#define dol_sect_address(hptr, index) \ + ((index >= DOL_SECT_MAX_TEXT)? \ + hptr->address_data[index - DOL_SECT_MAX_TEXT] \ + :hptr->address_text[index]) +#define dol_sect_size(hptr, index) \ + ((index >= DOL_SECT_MAX_TEXT)? \ + hptr->size_data[index - DOL_SECT_MAX_TEXT] \ + :hptr->size_text[index]) +#define dol_sect_type(index) \ + ((index >= DOL_SECT_MAX_TEXT) ? "data" : "text") + +typedef struct { + uint32_t sects_bitmap; + uint32_t start; + uint32_t size; +} dol_segment; + +#define dol_seg_end(s1) \ + (s1->start + s1->size) +#define dol_seg_after_sect(s1, s2) \ + (s1->start >= dol_seg_end(s2)) +#define dol_seg_overlaps(s1, s2) \ + (!(dol_seg_after_sect(s1,s2) || dol_seg_after_sect(s2,s1))) + +/* same as in asm/page.h */ +#define PAGE_SHIFT 12 +#define PAGE_SIZE (1UL << PAGE_SHIFT) +#define PAGE_MASK (~((1 << PAGE_SHIFT) - 1)) +#define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK) + +#define BOOTLOADER "kexec" +#define BOOTLOADER_VERSION VERSION +#define MAX_COMMAND_LINE 256 + +#define UPSZ(X) ((sizeof(X) + 3) & ~3) +static struct boot_notes { + Elf_Bhdr hdr; + Elf_Nhdr bl_hdr; + unsigned char bl_desc[UPSZ(BOOTLOADER)]; + Elf_Nhdr blv_hdr; + unsigned char blv_desc[UPSZ(BOOTLOADER_VERSION)]; + Elf_Nhdr cmd_hdr; + unsigned char command_line[0]; +} elf_boot_notes = { + .hdr = { + .b_signature = 0x0E1FB007, + .b_size = sizeof(elf_boot_notes), + .b_checksum = 0, + .b_records = 3, + }, + .bl_hdr = { + .n_namesz = 0, + .n_descsz = sizeof(BOOTLOADER), + .n_type = EBN_BOOTLOADER_NAME, + }, + .bl_desc = BOOTLOADER, + .blv_hdr = { + .n_namesz = 0, + .n_descsz = sizeof(BOOTLOADER_VERSION), + .n_type = EBN_BOOTLOADER_VERSION, + }, + .blv_desc = BOOTLOADER_VERSION, + .cmd_hdr = { + .n_namesz = 0, + .n_descsz = 0, + .n_type = EBN_COMMAND_LINE, + }, +}; + +void print_sects_bitmap(dol_segment * seg) +{ + int i, first_seen; + + printf("\t" "sects_bitmap"); + first_seen = 0; + for (i = 0; i < DOL_MAX_SECT; i++) { + if ((seg->sects_bitmap & (1 << i)) == 0) + continue; + printf("%c%d", (first_seen ? ',' : '='), i); + first_seen = 1; + } + printf("\n"); +} + +void print_dol_segment(dol_segment * seg) +{ + printf("dol segment:\n"); + printf("\t" "start=%08lx, size=%ld (%08lx)\n", + (unsigned long)seg->start, (unsigned long)seg->size, + (unsigned long)seg->size); + printf("\t" "end=%08lx\n", (unsigned long)dol_seg_end(seg)); + print_sects_bitmap(seg); +} + +int load_dol_segments(dol_segment * seg, int max_segs, dol_header * h) +{ + int i, n, remaining; + unsigned int start, size; + unsigned long adj1, adj2, end1; + + n = 0; + remaining = max_segs; + for (i = 0; i < DOL_MAX_SECT && remaining > 0; i++) { + /* zero here means the section is not in use */ + if (dol_sect_size(h, i) == 0) + continue; + + /* we initially map 1 seg to 1 sect */ + seg->sects_bitmap = (1 << i); + + start = dol_sect_address(h, i); + size = dol_sect_size(h, i); + + /* page align the segment */ + seg->start = start & PAGE_MASK; + end1 = start + size; + adj1 = start - seg->start; + adj2 = PAGE_ALIGN(end1) - end1; + seg->size = adj1 + size + adj2; + + //print_dol_segment(seg); + + seg++; + remaining--; + n++; + } + return n; +} + +void fix_dol_segments_overlaps(dol_segment * seg, int max_segs) +{ + int i, j; + dol_segment *p, *pp; + long extra_length; + + /* look for overlapping segments and fix them */ + for (i = 0; i < max_segs; i++) { + p = seg + i; /* segment p */ + + /* not really a segment */ + if (p->size == 0) + continue; + + /* check if overlaps any previous segments */ + for (j = 0; j < i; j++) { + pp = seg + j; /* segment pp */ + + /* not a segment or no overlap */ + if (pp->size == 0 || !dol_seg_overlaps(p, pp)) + continue; + + /* merge the two segments */ + if (pp->start < p->start) { + /* extend pp to include p and delete p */ + extra_length = dol_seg_end(p) - dol_seg_end(pp); + if (extra_length > 0) { + pp->size += extra_length; + } + pp->sects_bitmap |= p->sects_bitmap; + p->size = p->start = p->sects_bitmap = 0; + + /* restart the loop because p was deleted */ + i = 0; + break; + } else { + /* extend p to include pp and delete pp */ + extra_length = dol_seg_end(pp) - dol_seg_end(p); + if (extra_length > 0) { + p->size += extra_length; + } + p->sects_bitmap |= pp->sects_bitmap; + pp->size = pp->start = pp->sects_bitmap = 0; + } + } + } +} + +int dol_ppc_probe(const char *buf, off_t dol_length) +{ + dol_header header, *h; + int i, valid = 0; + + /* the DOL file should be at least as long as the DOL header */ + if (dol_length < DOL_HEADER_SIZE) { + if (debug) { + fprintf(stderr, "Not a DOL file, too short.\n"); + } + return -1; + } + + /* read the DOL header */ + memcpy(&header, buf, sizeof(header)); + h = &header; + + /* now perform some sanity checks */ + for (i = 0; i < DOL_MAX_SECT; i++) { + /* DOL segment MAY NOT be physically stored in the header */ + if ((dol_sect_offset(h, i) != 0) + && (dol_sect_offset(h, i) < DOL_HEADER_SIZE)) { + if (debug) { + fprintf(stderr, + "%s segment offset within DOL header\n", + dol_sect_type(i)); + } + return -1; + } + + /* end of physical storage must be within file */ + if (dol_sect_offset(h, i) + dol_sect_size(h, i) > dol_length) { + if (debug) { + fprintf(stderr, + "%s segment past DOL file size\n", + dol_sect_type(i)); + } + return -1; + } + + /* we only should accept DOLs with segments above 2GB */ + if (dol_sect_address(h, i) != 0 + && !(dol_sect_address(h, i) & 0x80000000)) { + fprintf(stderr, "warning, %s segment below 2GB\n", + dol_sect_type(i)); + } + + if (i < DOL_SECT_MAX_TEXT) { + /* remember that entrypoint was in a code segment */ + if (h->entry_point >= dol_sect_address(h, i) + && h->entry_point < dol_sect_address(h, i) + + dol_sect_size(h, i)) + valid = 1; + } + } + + /* if there is a BSS segment it must^H^H^H^Hshould be above 2GB, too */ + if (h->address_bss != 0 && !(h->address_bss & 0x80000000)) { + fprintf(stderr, "warning, BSS segment below 2GB\n"); + } + + /* if entrypoint is not within a code segment reject this file */ + if (!valid) { + if (debug) { + fprintf(stderr, "Entry point out of text segment\n"); + } + return -1; + } + + /* I've got a dol */ + return 0; +} + +void dol_ppc_usage(void) +{ + printf + ("-d, --debug Enable debugging to help spot a failure.\n" + " --command-line=STRING Set the kernel command line to STRING.\n" + " --append=STRING Set the kernel command line to STRING.\n"); + +} + +int dol_ppc_load(int argc, char **argv, const char *buf, off_t len, + struct kexec_info *info) +{ + dol_header header, *h; + unsigned long entry; + char *arg_buf; + size_t arg_bytes; + unsigned long arg_base; + struct boot_notes *notes; + size_t note_bytes; + const char *command_line; + int command_line_len; + unsigned long mstart; + dol_segment dol_segs[DOL_MAX_SECT]; + unsigned int sects_bitmap; + unsigned long lowest_start; + int i, j, k; + int opt; +#define OPT_APPEND (OPT_ARCH_MAX+0) + + static const struct option options[] = { + KEXEC_ARCH_OPTIONS + {"debug", 0, 0, OPT_DEBUG}, + {"command-line", 1, 0, OPT_APPEND}, + {"append", 1, 0, OPT_APPEND}, + {0, 0, 0, 0}, + }; + static const char short_options[] = KEXEC_ARCH_OPT_STR "d"; + + /* + * Parse the command line arguments + */ + debug = 0; + command_line = 0; + while ((opt = getopt_long(argc, argv, short_options, options, 0)) != -1) { + switch (opt) { + default: + /* Ignore core options */ + if (opt < OPT_ARCH_MAX) { + break; + } + case '?': + usage(); + return -1; + case OPT_DEBUG: + debug = 1; + break; + case OPT_APPEND: + command_line = optarg; + break; + } + } + command_line_len = 0; + if (command_line) { + command_line_len = strlen(command_line) + 1; + } + + /* read the DOL header */ + memcpy(&header, buf, sizeof(header)); + h = &header; + + /* set entry point */ + entry = h->entry_point; + + /* convert the DOL sections into suitable page aligned segments */ + memset(dol_segs, 0, sizeof(dol_segs)); + + load_dol_segments(dol_segs, DOL_MAX_SECT, h); + fix_dol_segments_overlaps(dol_segs, DOL_MAX_SECT); + + /* load rest of segments */ + for (i = 0; i < DOL_MAX_SECT; i++) { + unsigned char *seg_buf; + /* not a segment */ + if (dol_segs[i].size == 0) + continue; + + //print_dol_segment(&dol_segs[i]); + + /* prepare segment */ + seg_buf = xmalloc(dol_segs[i].size); + mstart = dol_segs[i].start; + if (mstart & 0xf0000000) { + /* + * GameCube DOLs expect memory mapped this way: + * + * 80000000 - 817fffff 24MB RAM, cached + * c0000000 - c17fffff 24MB RAM, not cached + * + * kexec, instead, needs physical memory layout, so + * we clear the upper bits of the address. + * (2 bits should be enough, indeed) + */ + mstart &= ~0xf0000000; /* clear bits 0-3, ibm syntax */ + } + add_segment(info, + seg_buf, dol_segs[i].size, + mstart, dol_segs[i].size); + + + /* load sections into segment memory, according to bitmap */ + sects_bitmap = 0; + while (sects_bitmap != dol_segs[i].sects_bitmap) { + unsigned char *sec_buf; + /* find lowest start address for section */ + lowest_start = 0xffffffff; + for (j = -1, k = 0; k < DOL_MAX_SECT; k++) { + /* continue if section is already done */ + if ((sects_bitmap & (1 << k)) != 0) + continue; + /* do nothing for non sections */ + if ((dol_segs[i].sects_bitmap & (1 << k)) == 0) + continue; + /* found new candidate */ + if (dol_sect_address(h, k) < lowest_start) { + lowest_start = dol_sect_address(h, k); + j = k; + } + } + /* mark section as being loaded */ + sects_bitmap |= (1 << j); + + /* read it from file to the right place */ + sec_buf = seg_buf + + (dol_sect_address(h, j) - dol_segs[i].start); + memcpy(sec_buf, buf + dol_sect_offset(h, j), + dol_sect_size(h, j)); + } + } + + /* build the setup glue and argument segment (segment 0) */ + note_bytes = sizeof(elf_boot_notes) + ((command_line_len + 3) & ~3); + arg_bytes = note_bytes + ((setup_dol_size + 3) & ~3); + + arg_buf = xmalloc(arg_bytes); + arg_base = add_buffer(info, + arg_buf, arg_bytes, arg_bytes, 4, 0, 0xFFFFFFFFUL, 1); + + notes = (struct boot_notes *)(arg_buf + ((setup_dol_size + 3) & ~3)); + + notes->hdr.b_size = note_bytes; + notes->cmd_hdr.n_descsz = command_line_len; + notes->hdr.b_checksum = compute_ip_checksum(notes, note_bytes); + + setup_dol_regs.spr8 = entry; /* Link Register */ + + memcpy(arg_buf, setup_dol_start, setup_dol_size); + memcpy(notes, &elf_boot_notes, sizeof(elf_boot_notes)); + memcpy(notes->command_line, command_line, command_line_len); + + if (debug) { + fprintf(stdout, "entry = %p\n", (void *)arg_base); + print_segments(stdout, info); + } + + info->entry = (void *)arg_base; + return 0; +} diff --git a/kexec/arch/ppc/kexec-elf-ppc.c b/kexec/arch/ppc/kexec-elf-ppc.c new file mode 100644 index 00000000..0e6888e1 --- /dev/null +++ b/kexec/arch/ppc/kexec-elf-ppc.c @@ -0,0 +1,225 @@ +/* + * kexec-elf-ppc.c - kexec Elf loader for the PowerPC + * Copyright (C) 2004 Albert Herranz + * + * This source code is licensed under the GNU General Public License, + * Version 2. See the file COPYING for more details. + */ + +#define _GNU_SOURCE +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <errno.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/mman.h> +#include <fcntl.h> +#include <unistd.h> +#include <getopt.h> +#include <elf.h> +#include <boot/elf_boot.h> +#include <ip_checksum.h> +#include "../../kexec.h" +#include "../../kexec-elf.h" +#include "kexec-ppc.h" +#include <arch/options.h> + +static const int probe_debug = 0; + +#define BOOTLOADER "kexec" +#define BOOTLOADER_VERSION VERSION +#define MAX_COMMAND_LINE 256 + +#define UPSZ(X) ((sizeof(X) + 3) & ~3) +static struct boot_notes { + Elf_Bhdr hdr; + Elf_Nhdr bl_hdr; + unsigned char bl_desc[UPSZ(BOOTLOADER)]; + Elf_Nhdr blv_hdr; + unsigned char blv_desc[UPSZ(BOOTLOADER_VERSION)]; + Elf_Nhdr cmd_hdr; + unsigned char command_line[0]; +} elf_boot_notes = { + .hdr = { + .b_signature = 0x0E1FB007, + .b_size = sizeof(elf_boot_notes), + .b_checksum = 0, + .b_records = 3, + }, + .bl_hdr = { + .n_namesz = 0, + .n_descsz = sizeof(BOOTLOADER), + .n_type = EBN_BOOTLOADER_NAME, + }, + .bl_desc = BOOTLOADER, + .blv_hdr = { + .n_namesz = 0, + .n_descsz = sizeof(BOOTLOADER_VERSION), + .n_type = EBN_BOOTLOADER_VERSION, + }, + .blv_desc = BOOTLOADER_VERSION, + .cmd_hdr = { + .n_namesz = 0, + .n_descsz = 0, + .n_type = EBN_COMMAND_LINE, + }, +}; + + +int elf_ppc_probe(const char *buf, off_t len) +{ + + struct mem_ehdr ehdr; + int result; + result = build_elf_exec_info(buf, len, &ehdr); + if (result < 0) { + goto out; + } + + /* Verify the architecuture specific bits */ + if (ehdr.e_machine != EM_PPC) { + /* for a different architecture */ + if (probe_debug) { + fprintf(stderr, "Not for this architecture.\n"); + } + result = -1; + goto out; + } + result = 0; + out: + free_elf_info(&ehdr); + return result; +} + +void elf_ppc_usage(void) +{ + printf + ( + " --command-line=STRING Set the kernel command line to STRING.\n" + " --append=STRING Set the kernel command line to STRING.\n" + " --gamecube=1|0 Enable/disable support for ELFs with changed\n" + " addresses suitable for the GameCube.\n"); +} + +static void gamecube_hack_addresses(struct mem_ehdr *ehdr) +{ + struct mem_phdr *phdr, *phdr_end; + phdr_end = ehdr->e_phdr + ehdr->e_phnum; + for(phdr = ehdr->e_phdr; phdr != phdr_end; phdr++) { + /* + * GameCube ELF kernel is linked with memory mapped + * this way (to easily transform it into a DOL + * suitable for being loaded with psoload): + * + * 80000000 - 817fffff 24MB RAM, cached + * c0000000 - c17fffff 24MB RAM, not cached + * + * kexec, instead, needs physical memory layout, so + * we clear the upper bits of the address. + * (2 bits should be enough, indeed) + */ + phdr->p_paddr &= ~0xf0000000; /* clear bits 0-3, ibm syntax */ + } +} + +int elf_ppc_load(int argc, char **argv, const char *buf, off_t len, + struct kexec_info *info) +{ + struct mem_ehdr ehdr; + char *arg_buf; + size_t arg_bytes; + unsigned long arg_base; + struct boot_notes *notes; + size_t note_bytes; + const char *command_line; + int command_line_len; + unsigned char *setup_start; + uint32_t setup_size; + int result; +#ifdef CONFIG_GAMECUBE + int target_is_gamecube = 1; +#else + int target_is_gamecube = 0; +#endif + int opt; +#define OPT_APPEND (OPT_ARCH_MAX+0) +#define OPT_GAMECUBE (OPT_ARCH_MAX+1) + static const struct option options[] = { + KEXEC_ARCH_OPTIONS + {"command-line", 1, 0, OPT_APPEND}, + {"append", 1, 0, OPT_APPEND}, + {"gamecube", 1, 0, OPT_GAMECUBE}, + {0, 0, 0, 0}, + }; + + static const char short_options[] = KEXEC_ARCH_OPT_STR "d"; + + command_line = 0; + while ((opt = getopt_long(argc, argv, short_options, options, 0)) != -1) { + switch (opt) { + default: + /* Ignore core options */ + if (opt < OPT_ARCH_MAX) { + break; + } + case '?': + usage(); + return -1; + case OPT_APPEND: + command_line = optarg; + break; + case OPT_GAMECUBE: + target_is_gamecube = atoi(optarg); + break; + } + } + command_line_len = 0; + if (command_line) { + command_line_len = strlen(command_line) + 1; + } + + /* Parse the Elf file */ + result = build_elf_exec_info(buf, len, &ehdr); + if (result < 0) { + free_elf_info(&ehdr); + return result; + } + if (target_is_gamecube) { + gamecube_hack_addresses(&ehdr); + } + /* Load the Elf data */ + result = elf_exec_load(&ehdr, info); + if (result < 0) { + free_elf_info(&ehdr); + return result; + } + + if (target_is_gamecube) { + setup_start = setup_dol_start; + setup_size = setup_dol_size; + setup_dol_regs.spr8 = ehdr.e_entry; /* Link Register */ + } else { + setup_start = setup_simple_start; + setup_size = setup_simple_size; + setup_simple_regs.spr8 = ehdr.e_entry; /* Link Register */ + } + note_bytes = sizeof(elf_boot_notes) + ((command_line_len + 3) & ~3); + arg_bytes = note_bytes + ((setup_size + 3) & ~3); + + arg_buf = xmalloc(arg_bytes); + arg_base = add_buffer(info, + arg_buf, arg_bytes, arg_bytes, 4, 0, elf_max_addr(&ehdr), 1); + + notes = (struct boot_notes *)(arg_buf + ((setup_size + 3) & ~3)); + + memcpy(arg_buf, setup_start, setup_size); + memcpy(notes, &elf_boot_notes, sizeof(elf_boot_notes)); + memcpy(notes->command_line, command_line, command_line_len); + notes->hdr.b_size = note_bytes; + notes->cmd_hdr.n_descsz = command_line_len; + notes->hdr.b_checksum = compute_ip_checksum(notes, note_bytes); + + info->entry = (void *)arg_base; + return 0; +} diff --git a/kexec/arch/ppc/kexec-elf-rel-ppc.c b/kexec/arch/ppc/kexec-elf-rel-ppc.c new file mode 100644 index 00000000..e711f3b4 --- /dev/null +++ b/kexec/arch/ppc/kexec-elf-rel-ppc.c @@ -0,0 +1,64 @@ +#include <stdio.h> +#include <elf.h> +#include "../../kexec.h" +#include "../../kexec-elf.h" + +int machine_verify_elf_rel(struct mem_ehdr *ehdr) +{ + if (ehdr->ei_data != ELFDATA2MSB) { + return 0; + } + if (ehdr->ei_class != ELFCLASS32) { + return 0; + } + if (ehdr->e_machine != EM_PPC) { + return 0; + } + return 1; +} + +void machine_apply_elf_rel(struct mem_ehdr *ehdr, unsigned long r_type, + void *location, unsigned long address, unsigned long value) +{ + switch(r_type) { + case R_PPC_ADDR32: + /* Simply set it */ + *(uint32_t *)location = value; + break; + + case R_PPC_ADDR16_LO: + /* Low half of the symbol */ + *(uint16_t *)location = value; + break; + + case R_PPC_ADDR16_HA: + /* Sign-adjusted lower 16 bits: PPC ELF ABI says: + (((x >> 16) + ((x & 0x8000) ? 1 : 0))) & 0xFFFF. + This is the same, only sane. + */ + *(uint16_t *)location = (value + 0x8000) >> 16; + break; + + case R_PPC_REL24: + if ((int)(value - address) < -0x02000000 + || (int)(value - address) >= 0x02000000) + { + die("Symbol more than 16MiB away"); + } + /* Only replace bits 2 through 26 */ + *(uint32_t *)location + = (*(uint32_t *)location & ~0x03fffffc) + | ((value - address) + & 0x03fffffc); + break; + + case R_PPC_REL32: + /* 32-bit relative jump. */ + *(uint32_t *)location = value - address; + break; + default: + die("Unknown rela relocation: %lu\n", r_type); + break; + } + return; +} diff --git a/kexec/arch/ppc/kexec-ppc.c b/kexec/arch/ppc/kexec-ppc.c new file mode 100644 index 00000000..72c5b95a --- /dev/null +++ b/kexec/arch/ppc/kexec-ppc.c @@ -0,0 +1,151 @@ +/* + * kexec-ppc.c - kexec for the PowerPC + * Copyright (C) 2004, 2005 Albert Herranz + * + * This source code is licensed under the GNU General Public License, + * Version 2. See the file COPYING for more details. + */ + +#include <stddef.h> +#include <stdio.h> +#include <errno.h> +#include <stdint.h> +#include <string.h> +#include <getopt.h> +#include <sys/utsname.h> +#include "../../kexec.h" +#include "../../kexec-syscall.h" +#include "kexec-ppc.h" +#include <arch/options.h> + +#define MAX_MEMORY_RANGES 64 +#define MAX_LINE 160 +static struct memory_range memory_range[MAX_MEMORY_RANGES]; + +/* Return a sorted list of memory ranges. */ +int get_memory_ranges(struct memory_range **range, int *ranges) +{ + int memory_ranges = 0; +#ifdef CONFIG_GAMECUBE + /* RAM - lowmem used by DOLs - framebuffer */ + memory_range[memory_ranges].start = 0x00003000; + memory_range[memory_ranges].end = 0x0174bfff; + memory_range[memory_ranges].type = RANGE_RAM; + memory_ranges++; +#else +#error Please, fix this for your platform + const char iomem[] = "/proc/iomem"; + char line[MAX_LINE]; + FILE *fp; + unsigned long long start, end; + char *str; + int type, consumed, count; + + fp = fopen(iomem, "r"); + if (!fp) { + fprintf(stderr, "Cannot open %s: %s\n", iomem, strerror(errno)); + return -1; + } + while (fgets(line, sizeof(line), fp) != 0) { + if (memory_ranges >= MAX_MEMORY_RANGES) + break; + count = sscanf(line, "%Lx-%Lx : %n", &start, &end, &consumed); + if (count != 2) + continue; + str = line + consumed; + end = end + 1; +#if 0 + printf("%016Lx-%016Lx : %s\n", start, end, str); +#endif + if (memcmp(str, "System RAM\n", 11) == 0) { + type = RANGE_RAM; + } else if (memcmp(str, "reserved\n", 9) == 0) { + type = RANGE_RESERVED; + } else if (memcmp(str, "ACPI Tables\n", 12) == 0) { + type = RANGE_ACPI; + } else if (memcmp(str, "ACPI Non-volatile Storage\n", 26) == 0) { + type = RANGE_ACPI_NVS; + } else { + continue; + } + memory_range[memory_ranges].start = start; + memory_range[memory_ranges].end = end; + memory_range[memory_ranges].type = type; +#if 0 + printf("%016Lx-%016Lx : %x\n", start, end, type); +#endif + memory_ranges++; + } + fclose(fp); +#endif + *range = memory_range; + *ranges = memory_ranges; + return 0; +} + +struct file_type file_type[] = { + {"elf-ppc", elf_ppc_probe, elf_ppc_load, elf_ppc_usage}, + {"dol-ppc", dol_ppc_probe, dol_ppc_load, dol_ppc_usage}, +}; +int file_types = sizeof(file_type) / sizeof(file_type[0]); + +void arch_usage(void) +{ +} + +static struct { +} arch_options = { +}; +int arch_process_options(int argc, char **argv) +{ + static const struct option options[] = { + KEXEC_ARCH_OPTIONS + { 0, 0, NULL, 0 }, + }; + static const char short_options[] = KEXEC_ARCH_OPT_STR; + int opt; + unsigned long value; + char *end; + + opterr = 0; /* Don't complain about unrecognized options here */ + while((opt = getopt_long(argc, argv, short_options, options, 0)) != -1) { + switch(opt) { + default: + break; + } + } + /* Reset getopt for the next pass; called in other source modules */ + opterr = 1; + optind = 1; + return 0; +} + +int arch_compat_trampoline(struct kexec_info *info, unsigned long *flags) +{ + int result; + struct utsname utsname; + result = uname(&utsname); + if (result < 0) { + fprintf(stderr, "uname failed: %s\n", + strerror(errno)); + return -1; + } + if (strcmp(utsname.machine, "ppc") == 0) + { + /* For compatibility with older patches + * use KEXEC_ARCH_DEFAULT instead of KEXEC_ARCH_PPC here. + */ + *flags |= KEXEC_ARCH_DEFAULT; + } + else { + fprintf(stderr, "Unsupported machine type: %s\n", + utsname.machine); + return -1; + } + return 0; +} + +void arch_update_purgatory(struct kexec_info *info) +{ +} + diff --git a/kexec/arch/ppc/kexec-ppc.h b/kexec/arch/ppc/kexec-ppc.h new file mode 100644 index 00000000..6a40cc83 --- /dev/null +++ b/kexec/arch/ppc/kexec-ppc.h @@ -0,0 +1,28 @@ +#ifndef KEXEC_PPC_H +#define KEXEC_PPC_H + +extern unsigned char setup_simple_start[]; +extern uint32_t setup_simple_size; + +extern struct { + uint32_t spr8; +} setup_simple_regs; + +extern unsigned char setup_dol_start[]; +extern uint32_t setup_dol_size; + +extern struct { + uint32_t spr8; +} setup_dol_regs; + +int elf_ppc_probe(const char *buf, off_t len); +int elf_ppc_load(int argc, char **argv, const char *buf, off_t len, + struct kexec_info *info); +void elf_ppc_usage(void); + +int dol_ppc_probe(const char *buf, off_t len); +int dol_ppc_load(int argc, char **argv, const char *buf, off_t len, + struct kexec_info *info); +void dol_ppc_usage(void); + +#endif /* KEXEC_PPC_H */ diff --git a/kexec/arch/ppc/ppc-setup-dol.S b/kexec/arch/ppc/ppc-setup-dol.S new file mode 100644 index 00000000..17169bde --- /dev/null +++ b/kexec/arch/ppc/ppc-setup-dol.S @@ -0,0 +1,174 @@ +/* + * ppc-setup-dol.S - setup glue for Nintendo's GameCube + * Copyright (C) 2004 Albert Herranz + * + * This source code is licensed under the GNU General Public License, + * Version 2. See the file COPYING for more details. + */ + +#include "ppc_asm.h" + + .data + .globl setup_dol_start +setup_dol_start: + + /* Try to reproduce the GameCube "native" environment */ + + /* Setup BATs */ + isync + li r8, 0 + mtspr DBAT0U, r8 + mtspr DBAT0L, r8 + mtspr DBAT1U, r8 + mtspr DBAT1L, r8 + mtspr DBAT2U, r8 + mtspr DBAT2L, r8 + mtspr DBAT3U, r8 + mtspr DBAT3L, r8 + mtspr IBAT0U, r8 + mtspr IBAT0L, r8 + mtspr IBAT1U, r8 + mtspr IBAT1L, r8 + mtspr IBAT2U, r8 + mtspr IBAT2L, r8 + mtspr IBAT3U, r8 + mtspr IBAT3L, r8 + + /* + * Memory Map + * start end size description + * 0x80000000 0x817fffff 24MB RAM, uncached + * 0xc0000000 0xc17fffff 24MB RAM, cached + * 0xc8000000 0xc81fffff 2MB Embedded Framebuffer + * 0xcc000000 Hardware registers + * 0xe0000000 Layer 2 transfer cache ??? 256KB + * + */ + + isync + lis r8, 0x8000 /* IBAT0,DBAT0 for first 16Mbytes */ + ori r8, r8, 0x01ff /* 16MB */ + mtspr IBAT0U, r8 + mtspr DBAT0U, r8 + li r8, 0x0002 /* rw */ + mtspr IBAT0L, r8 + mtspr DBAT0L, r8 + + lis r8, 0xc000 /* DBAT1 for IO mem */ + ori r8, r8, 0x1fff /* 256MB */ + mtspr DBAT1U, r8 + li r8, 0x002a /* uncached, guarded ,rw */ + mtspr DBAT1L, r8 + + lis r8, 0x8100 /* IBAT2,DBAT2 for next 8Mbytes */ + ori r8, r8, 0x00ff /* 8MB */ + mtspr IBAT2U, r8 + mtspr DBAT2U, r8 + lis r8, 0x0100 + ori r8, r8, 0x0002 /* rw */ + mtspr IBAT2L, r8 + mtspr DBAT2L, r8 + + lis r8, 0xe000 /* DBAT3 for layer 2 transfer cache ??? */ + ori r8, r8, 0x01fe /* 16MB ??? */ + mtspr DBAT3U, r8 + lis r8, 0xe000 + ori r8, r8, 0x0002 /* rw */ + mtspr DBAT3L, r8 + + sync + isync + +/* AFAIK, this is not strictly needed, although seems sane */ +#if 1 + li r9, 0 + + /* page table pointer */ + sync + mtspr SDR1, r9 + + /* segment registers */ + li r8, 16 + mtctr r8 + li r8, 0 +1: mtsrin r9, r8 /* zero */ + sync + addis r8,r8,0x1000 /* next register */ + bdnz 1b +#endif + + /* switch MMU on and continue */ + RELOC_SYM(1f) + mfmsr r0 + ori r0, r0, MSR_RI|MSR_ME|MSR_DR|MSR_IR + mtspr SRR1, r0 + oris r3, r3, 0x8000 /* adjust text address */ + mtspr SRR0, r3 + oris r1, r1, 0x8000 /* adjust stack */ + sync + rfi + +1: + /* from now on we run in a DOL-like environment */ + + + /* first, sanitize the hardware a little bit */ + /* although seems to be not needed in the general case */ + +#if 1 + /* audio */ + lis r8, 0xcc00 /* io mem */ + li r9, 0 + sth r9, 0x5036(r8) /* stop audio sample */ + stw r9, 0x6c00(r8) /* stop streaming */ + stw r9, 0x6c04(r8) /* mute */ + + /* video */ + mfspr r8, 920 /* spr920 = HID2 */ + rlwinm r8, r8, 0, 4, 2 /* stop GX FIFO, and more */ + mtspr 920, r8 + + /* exi */ + lis r8, 0xcc00 /* io mem */ +1: lwz r9,0x680c(r8) /* wait for dma transfer to complete */ + andi. r9,r9,1 + bne+ 1b + stw r9,0x6800(r8) /* disable exi interrupts */ + addi r8,r8,0x14 /* next channel */ + andi. r9,r8,0x40 /* XXX 4 channels? */ + beq+ 1b + + /* pic */ + lis r8, 0xcc00 /* io mem */ + li r9, 0 + stw r9, 0x3004(r8) /* mask all interrupts */ + stw r9, 0x3000(r8) /* clear interrupt cause */ + + /* invalidate L1 data and instructions caches */ + mfspr r8, HID0 + ori r8, r8, HID0_ICFI|HID0_DCI + mtspr HID0, r8 +#endif + + /* jump to our entry point */ + RELOC_SYM(setup_dol_regs) + mr r9, r3 + lwz r5, spr8 - setup_dol_regs(r9) + + mtlr r5 + blr + + .balign 4 + .globl setup_dol_regs +setup_dol_regs: +spr8: .long 0x00000000 + + .balign 4 +//#include "isobel_reloc_debug_console.s" + +setup_dol_end: + + .globl setup_dol_size +setup_dol_size: + .long setup_dol_end - setup_dol_start + diff --git a/kexec/arch/ppc/ppc-setup-simple.S b/kexec/arch/ppc/ppc-setup-simple.S new file mode 100644 index 00000000..1317a8d7 --- /dev/null +++ b/kexec/arch/ppc/ppc-setup-simple.S @@ -0,0 +1,39 @@ +/* + * ppc-setup-simple.S - (hopefully) setup for simple embedded platforms + * Copyright (C) 2004 Albert Herranz + * + * This source code is licensed under the GNU General Public License, + * Version 2. See the file COPYING for more details. + */ + +/* + * Only suitable for platforms booting with MMU turned off. + * -- Albert Herranz + */ + +#include "ppc_asm.h" + + .data + .globl setup_simple_start +setup_simple_start: + + /* should perform here any required setup */ + + RELOC_SYM(setup_simple_regs) + mr r9, r3 + lwz r5, spr8 - setup_simple_regs(r9) + + mtlr r5 + blr + + .balign 4 + .globl setup_simple_regs +setup_simple_regs: +spr8: .long 0x00000000 + +setup_simple_end: + + .globl setup_simple_size +setup_simple_size: + .long setup_simple_end - setup_simple_start + diff --git a/kexec/arch/ppc/ppc_asm.h b/kexec/arch/ppc/ppc_asm.h new file mode 100644 index 00000000..36503a90 --- /dev/null +++ b/kexec/arch/ppc/ppc_asm.h @@ -0,0 +1,506 @@ +/* + * ppc_asm.h - mainly bits stolen from Linux kernel asm/reg.h and asm/ppc_asm.h + * + * This source code is licensed under the GNU General Public License, + * Version 2. See the file COPYING for more details. + */ + +/* Condition Register Bit Fields */ + +#define cr0 0 +#define cr1 1 +#define cr2 2 +#define cr3 3 +#define cr4 4 +#define cr5 5 +#define cr6 6 +#define cr7 7 + + +/* General Purpose Registers (GPRs) */ + +#define r0 0 +#define r1 1 +#define r2 2 +#define r3 3 +#define r4 4 +#define r5 5 +#define r6 6 +#define r7 7 +#define r8 8 +#define r9 9 +#define r10 10 +#define r11 11 +#define r12 12 +#define r13 13 +#define r14 14 +#define r15 15 +#define r16 16 +#define r17 17 +#define r18 18 +#define r19 19 +#define r20 20 +#define r21 21 +#define r22 22 +#define r23 23 +#define r24 24 +#define r25 25 +#define r26 26 +#define r27 27 +#define r28 28 +#define r29 29 +#define r30 30 +#define r31 31 + +/* Machine State Register (MSR) Fields */ +#define MSR_SF (1<<63) +#define MSR_ISF (1<<61) +#define MSR_VEC (1<<25) /* Enable AltiVec */ +#define MSR_POW (1<<18) /* Enable Power Management */ +#define MSR_WE (1<<18) /* Wait State Enable */ +#define MSR_TGPR (1<<17) /* TLB Update registers in use */ +#define MSR_CE (1<<17) /* Critical Interrupt Enable */ +#define MSR_ILE (1<<16) /* Interrupt Little Endian */ +#define MSR_EE (1<<15) /* External Interrupt Enable */ +#define MSR_PR (1<<14) /* Problem State / Privilege Level */ +#define MSR_FP (1<<13) /* Floating Point enable */ +#define MSR_ME (1<<12) /* Machine Check Enable */ +#define MSR_FE0 (1<<11) /* Floating Exception mode 0 */ +#define MSR_SE (1<<10) /* Single Step */ +#define MSR_BE (1<<9) /* Branch Trace */ +#define MSR_DE (1<<9) /* Debug Exception Enable */ +#define MSR_FE1 (1<<8) /* Floating Exception mode 1 */ +#define MSR_IP (1<<6) /* Exception prefix 0x000/0xFFF */ +#define MSR_IR (1<<5) /* Instruction Relocate */ +#define MSR_DR (1<<4) /* Data Relocate */ +#define MSR_PE (1<<3) /* Protection Enable */ +#define MSR_PX (1<<2) /* Protection Exclusive Mode */ +#define MSR_RI (1<<1) /* Recoverable Exception */ +#define MSR_LE (1<<0) /* Little Endian */ + +/* Special Purpose Registers (SPRNs)*/ +#define SPRN_CTR 0x009 /* Count Register */ +#define SPRN_DABR 0x3F5 /* Data Address Breakpoint Register */ +#define SPRN_DAR 0x013 /* Data Address Register */ +#define SPRN_TBRL 0x10C /* Time Base Read Lower Register (user, R/O) */ +#define SPRN_TBRU 0x10D /* Time Base Read Upper Register (user, R/O) */ +#define SPRN_TBWL 0x11C /* Time Base Lower Register (super, R/W) */ +#define SPRN_TBWU 0x11D /* Time Base Upper Register (super, R/W) */ +#define SPRN_HIOR 0x137 /* 970 Hypervisor interrupt offset */ +#define SPRN_DBAT0L 0x219 /* Data BAT 0 Lower Register */ +#define SPRN_DBAT0U 0x218 /* Data BAT 0 Upper Register */ +#define SPRN_DBAT1L 0x21B /* Data BAT 1 Lower Register */ +#define SPRN_DBAT1U 0x21A /* Data BAT 1 Upper Register */ +#define SPRN_DBAT2L 0x21D /* Data BAT 2 Lower Register */ +#define SPRN_DBAT2U 0x21C /* Data BAT 2 Upper Register */ +#define SPRN_DBAT3L 0x21F /* Data BAT 3 Lower Register */ +#define SPRN_DBAT3U 0x21E /* Data BAT 3 Upper Register */ +#define SPRN_DBAT4L 0x239 /* Data BAT 4 Lower Register */ +#define SPRN_DBAT4U 0x238 /* Data BAT 4 Upper Register */ +#define SPRN_DBAT5L 0x23B /* Data BAT 5 Lower Register */ +#define SPRN_DBAT5U 0x23A /* Data BAT 5 Upper Register */ +#define SPRN_DBAT6L 0x23D /* Data BAT 6 Lower Register */ +#define SPRN_DBAT6U 0x23C /* Data BAT 6 Upper Register */ +#define SPRN_DBAT7L 0x23F /* Data BAT 7 Lower Register */ +#define SPRN_DBAT7U 0x23E /* Data BAT 7 Upper Register */ + +#define SPRN_DEC 0x016 /* Decrement Register */ +#define SPRN_DER 0x095 /* Debug Enable Regsiter */ +#define DER_RSTE 0x40000000 /* Reset Interrupt */ +#define DER_CHSTPE 0x20000000 /* Check Stop */ +#define DER_MCIE 0x10000000 /* Machine Check Interrupt */ +#define DER_EXTIE 0x02000000 /* External Interrupt */ +#define DER_ALIE 0x01000000 /* Alignment Interrupt */ +#define DER_PRIE 0x00800000 /* Program Interrupt */ +#define DER_FPUVIE 0x00400000 /* FP Unavailable Interrupt */ +#define DER_DECIE 0x00200000 /* Decrementer Interrupt */ +#define DER_SYSIE 0x00040000 /* System Call Interrupt */ +#define DER_TRE 0x00020000 /* Trace Interrupt */ +#define DER_SEIE 0x00004000 /* FP SW Emulation Interrupt */ +#define DER_ITLBMSE 0x00002000 /* Imp. Spec. Instruction TLB Miss */ +#define DER_ITLBERE 0x00001000 /* Imp. Spec. Instruction TLB Error */ +#define DER_DTLBMSE 0x00000800 /* Imp. Spec. Data TLB Miss */ +#define DER_DTLBERE 0x00000400 /* Imp. Spec. Data TLB Error */ +#define DER_LBRKE 0x00000008 /* Load/Store Breakpoint Interrupt */ +#define DER_IBRKE 0x00000004 /* Instruction Breakpoint Interrupt */ +#define DER_EBRKE 0x00000002 /* External Breakpoint Interrupt */ +#define DER_DPIE 0x00000001 /* Dev. Port Nonmaskable Request */ +#define SPRN_DMISS 0x3D0 /* Data TLB Miss Register */ +#define SPRN_DSISR 0x012 /* Data Storage Interrupt Status Register */ +#define SPRN_EAR 0x11A /* External Address Register */ +#define SPRN_HASH1 0x3D2 /* Primary Hash Address Register */ +#define SPRN_HASH2 0x3D3 /* Secondary Hash Address Resgister */ +#define SPRN_HID0 0x3F0 /* Hardware Implementation Register 0 */ +#define HID0_EMCP (1<<31) /* Enable Machine Check pin */ +#define HID0_EBA (1<<29) /* Enable Bus Address Parity */ +#define HID0_EBD (1<<28) /* Enable Bus Data Parity */ +#define HID0_SBCLK (1<<27) +#define HID0_EICE (1<<26) +#define HID0_TBEN (1<<26) /* Timebase enable - 745x */ +#define HID0_ECLK (1<<25) +#define HID0_PAR (1<<24) +#define HID0_STEN (1<<24) /* Software table search enable - 745x */ +#define HID0_HIGH_BAT (1<<23) /* Enable high BATs - 7455 */ +#define HID0_DOZE (1<<23) +#define HID0_NAP (1<<22) +#define HID0_SLEEP (1<<21) +#define HID0_DPM (1<<20) +#define HID0_BHTCLR (1<<18) /* Clear branch history table - 7450 */ +#define HID0_XAEN (1<<17) /* Extended addressing enable - 7450 */ +#define HID0_NHR (1<<16) /* Not hard reset (software bit-7450)*/ +#define HID0_ICE (1<<15) /* Instruction Cache Enable */ +#define HID0_DCE (1<<14) /* Data Cache Enable */ +#define HID0_ILOCK (1<<13) /* Instruction Cache Lock */ +#define HID0_DLOCK (1<<12) /* Data Cache Lock */ +#define HID0_ICFI (1<<11) /* Instr. Cache Flash Invalidate */ +#define HID0_DCI (1<<10) /* Data Cache Invalidate */ +#define HID0_SPD (1<<9) /* Speculative disable */ +#define HID0_SGE (1<<7) /* Store Gathering Enable */ +#define HID0_SIED (1<<7) /* Serial Instr. Execution [Disable] */ +#define HID0_DFCA (1<<6) /* Data Cache Flush Assist */ +#define HID0_LRSTK (1<<4) /* Link register stack - 745x */ +#define HID0_BTIC (1<<5) /* Branch Target Instr Cache Enable */ +#define HID0_ABE (1<<3) /* Address Broadcast Enable */ +#define HID0_FOLD (1<<3) /* Branch Folding enable - 745x */ +#define HID0_BHTE (1<<2) /* Branch History Table Enable */ +#define HID0_BTCD (1<<1) /* Branch target cache disable */ +#define HID0_NOPDST (1<<1) /* No-op dst, dstt, etc. instr. */ +#define HID0_NOPTI (1<<0) /* No-op dcbt and dcbst instr. */ + +#define SPRN_HID1 0x3F1 /* Hardware Implementation Register 1 */ +#define HID1_EMCP (1<<31) /* 7450 Machine Check Pin Enable */ +#define HID1_PC0 (1<<16) /* 7450 PLL_CFG[0] */ +#define HID1_PC1 (1<<15) /* 7450 PLL_CFG[1] */ +#define HID1_PC2 (1<<14) /* 7450 PLL_CFG[2] */ +#define HID1_PC3 (1<<13) /* 7450 PLL_CFG[3] */ +#define HID1_SYNCBE (1<<11) /* 7450 ABE for sync, eieio */ +#define HID1_ABE (1<<10) /* 7450 Address Broadcast Enable */ +#define SPRN_HID2 0x3F8 /* Hardware Implementation Register 2 */ +#define SPRN_IABR 0x3F2 /* Instruction Address Breakpoint Register */ +#define SPRN_HID4 0x3F4 /* 970 HID4 */ +#define SPRN_HID5 0x3F6 /* 970 HID5 */ +#if !defined(SPRN_IAC1) && !defined(SPRN_IAC2) +#define SPRN_IAC1 0x3F4 /* Instruction Address Compare 1 */ +#define SPRN_IAC2 0x3F5 /* Instruction Address Compare 2 */ +#endif +#define SPRN_IBAT0L 0x211 /* Instruction BAT 0 Lower Register */ +#define SPRN_IBAT0U 0x210 /* Instruction BAT 0 Upper Register */ +#define SPRN_IBAT1L 0x213 /* Instruction BAT 1 Lower Register */ +#define SPRN_IBAT1U 0x212 /* Instruction BAT 1 Upper Register */ +#define SPRN_IBAT2L 0x215 /* Instruction BAT 2 Lower Register */ +#define SPRN_IBAT2U 0x214 /* Instruction BAT 2 Upper Register */ +#define SPRN_IBAT3L 0x217 /* Instruction BAT 3 Lower Register */ +#define SPRN_IBAT3U 0x216 /* Instruction BAT 3 Upper Register */ +#define SPRN_IBAT4L 0x231 /* Instruction BAT 4 Lower Register */ +#define SPRN_IBAT4U 0x230 /* Instruction BAT 4 Upper Register */ +#define SPRN_IBAT5L 0x233 /* Instruction BAT 5 Lower Register */ +#define SPRN_IBAT5U 0x232 /* Instruction BAT 5 Upper Register */ +#define SPRN_IBAT6L 0x235 /* Instruction BAT 6 Lower Register */ +#define SPRN_IBAT6U 0x234 /* Instruction BAT 6 Upper Register */ +#define SPRN_IBAT7L 0x237 /* Instruction BAT 7 Lower Register */ +#define SPRN_IBAT7U 0x236 /* Instruction BAT 7 Upper Register */ +#define SPRN_ICMP 0x3D5 /* Instruction TLB Compare Register */ +#define SPRN_ICTC 0x3FB /* Instruction Cache Throttling Control Reg */ +#define SPRN_ICTRL 0x3F3 /* 1011 7450 icache and interrupt ctrl */ +#define ICTRL_EICE 0x08000000 /* enable icache parity errs */ +#define ICTRL_EDC 0x04000000 /* enable dcache parity errs */ +#define ICTRL_EICP 0x00000100 /* enable icache par. check */ +#define SPRN_IMISS 0x3D4 /* Instruction TLB Miss Register */ +#define SPRN_IMMR 0x27E /* Internal Memory Map Register */ +#define SPRN_L2CR 0x3F9 /* Level 2 Cache Control Regsiter */ +#define SPRN_L2CR2 0x3f8 +#define L2CR_L2E 0x80000000 /* L2 enable */ +#define L2CR_L2PE 0x40000000 /* L2 parity enable */ +#define L2CR_L2SIZ_MASK 0x30000000 /* L2 size mask */ +#define L2CR_L2SIZ_256KB 0x10000000 /* L2 size 256KB */ +#define L2CR_L2SIZ_512KB 0x20000000 /* L2 size 512KB */ +#define L2CR_L2SIZ_1MB 0x30000000 /* L2 size 1MB */ +#define L2CR_L2CLK_MASK 0x0e000000 /* L2 clock mask */ +#define L2CR_L2CLK_DISABLED 0x00000000 /* L2 clock disabled */ +#define L2CR_L2CLK_DIV1 0x02000000 /* L2 clock / 1 */ +#define L2CR_L2CLK_DIV1_5 0x04000000 /* L2 clock / 1.5 */ +#define L2CR_L2CLK_DIV2 0x08000000 /* L2 clock / 2 */ +#define L2CR_L2CLK_DIV2_5 0x0a000000 /* L2 clock / 2.5 */ +#define L2CR_L2CLK_DIV3 0x0c000000 /* L2 clock / 3 */ +#define L2CR_L2RAM_MASK 0x01800000 /* L2 RAM type mask */ +#define L2CR_L2RAM_FLOW 0x00000000 /* L2 RAM flow through */ +#define L2CR_L2RAM_PIPE 0x01000000 /* L2 RAM pipelined */ +#define L2CR_L2RAM_PIPE_LW 0x01800000 /* L2 RAM pipelined latewr */ +#define L2CR_L2DO 0x00400000 /* L2 data only */ +#define L2CR_L2I 0x00200000 /* L2 global invalidate */ +#define L2CR_L2CTL 0x00100000 /* L2 RAM control */ +#define L2CR_L2WT 0x00080000 /* L2 write-through */ +#define L2CR_L2TS 0x00040000 /* L2 test support */ +#define L2CR_L2OH_MASK 0x00030000 /* L2 output hold mask */ +#define L2CR_L2OH_0_5 0x00000000 /* L2 output hold 0.5 ns */ +#define L2CR_L2OH_1_0 0x00010000 /* L2 output hold 1.0 ns */ +#define L2CR_L2SL 0x00008000 /* L2 DLL slow */ +#define L2CR_L2DF 0x00004000 /* L2 differential clock */ +#define L2CR_L2BYP 0x00002000 /* L2 DLL bypass */ +#define L2CR_L2IP 0x00000001 /* L2 GI in progress */ +#define SPRN_L3CR 0x3FA /* Level 3 Cache Control Regsiter */ +#define L3CR_L3E 0x80000000 /* L3 enable */ +#define L3CR_L3PE 0x40000000 /* L3 data parity enable */ +#define L3CR_L3APE 0x20000000 /* L3 addr parity enable */ +#define L3CR_L3SIZ 0x10000000 /* L3 size */ +#define L3CR_L3CLKEN 0x08000000 /* L3 clock enable */ +#define L3CR_L3RES 0x04000000 /* L3 special reserved bit */ +#define L3CR_L3CLKDIV 0x03800000 /* L3 clock divisor */ +#define L3CR_L3IO 0x00400000 /* L3 instruction only */ +#define L3CR_L3SPO 0x00040000 /* L3 sample point override */ +#define L3CR_L3CKSP 0x00030000 /* L3 clock sample point */ +#define L3CR_L3PSP 0x0000e000 /* L3 P-clock sample point */ +#define L3CR_L3REP 0x00001000 /* L3 replacement algorithm */ +#define L3CR_L3HWF 0x00000800 /* L3 hardware flush */ +#define L3CR_L3I 0x00000400 /* L3 global invalidate */ +#define L3CR_L3RT 0x00000300 /* L3 SRAM type */ +#define L3CR_L3NIRCA 0x00000080 /* L3 non-integer ratio clock adj. */ +#define L3CR_L3DO 0x00000040 /* L3 data only mode */ +#define L3CR_PMEN 0x00000004 /* L3 private memory enable */ +#define L3CR_PMSIZ 0x00000001 /* L3 private memory size */ +#define SPRN_MSSCR0 0x3f6 /* Memory Subsystem Control Register 0 */ +#define SPRN_MSSSR0 0x3f7 /* Memory Subsystem Status Register 1 */ +#define SPRN_LDSTCR 0x3f8 /* Load/Store control register */ +#define SPRN_LDSTDB 0x3f4 /* */ +#define SPRN_LR 0x008 /* Link Register */ +#define SPRN_MMCR0 0x3B8 /* Monitor Mode Control Register 0 */ +#define SPRN_MMCR1 0x3BC /* Monitor Mode Control Register 1 */ +#ifndef SPRN_PIR +#define SPRN_PIR 0x3FF /* Processor Identification Register */ +#endif +#define SPRN_PMC1 0x3B9 /* Performance Counter Register 1 */ +#define SPRN_PMC2 0x3BA /* Performance Counter Register 2 */ +#define SPRN_PMC3 0x3BD /* Performance Counter Register 3 */ +#define SPRN_PMC4 0x3BE /* Performance Counter Register 4 */ +#define SPRN_PTEHI 0x3D5 /* 981 7450 PTE HI word (S/W TLB load) */ +#define SPRN_PTELO 0x3D6 /* 982 7450 PTE LO word (S/W TLB load) */ +#define SPRN_PVR 0x11F /* Processor Version Register */ +#define SPRN_RPA 0x3D6 /* Required Physical Address Register */ +#define SPRN_SDA 0x3BF /* Sampled Data Address Register */ +#define SPRN_SDR1 0x019 /* MMU Hash Base Register */ +#define SPRN_SIA 0x3BB /* Sampled Instruction Address Register */ +#define SPRN_SPRG0 0x110 /* Special Purpose Register General 0 */ +#define SPRN_SPRG1 0x111 /* Special Purpose Register General 1 */ +#define SPRN_SPRG2 0x112 /* Special Purpose Register General 2 */ +#define SPRN_SPRG3 0x113 /* Special Purpose Register General 3 */ +#define SPRN_SPRG4 0x114 /* Special Purpose Register General 4 */ +#define SPRN_SPRG5 0x115 /* Special Purpose Register General 5 */ +#define SPRN_SPRG6 0x116 /* Special Purpose Register General 6 */ +#define SPRN_SPRG7 0x117 /* Special Purpose Register General 7 */ +#define SPRN_SRR0 0x01A /* Save/Restore Register 0 */ +#define SPRN_SRR1 0x01B /* Save/Restore Register 1 */ +#define SPRN_THRM1 0x3FC /* Thermal Management Register 1 */ +/* these bits were defined in inverted endian sense originally, ugh, confusing */ +#define THRM1_TIN (1 << 31) +#define THRM1_TIV (1 << 30) +#define THRM1_THRES(x) ((x&0x7f)<<23) +#define THRM3_SITV(x) ((x&0x3fff)<<1) +#define THRM1_TID (1<<2) +#define THRM1_TIE (1<<1) +#define THRM1_V (1<<0) +#define SPRN_THRM2 0x3FD /* Thermal Management Register 2 */ +#define SPRN_THRM3 0x3FE /* Thermal Management Register 3 */ +#define THRM3_E (1<<0) +#define SPRN_TLBMISS 0x3D4 /* 980 7450 TLB Miss Register */ +#define SPRN_UMMCR0 0x3A8 /* User Monitor Mode Control Register 0 */ +#define SPRN_UMMCR1 0x3AC /* User Monitor Mode Control Register 0 */ +#define SPRN_UPMC1 0x3A9 /* User Performance Counter Register 1 */ +#define SPRN_UPMC2 0x3AA /* User Performance Counter Register 2 */ +#define SPRN_UPMC3 0x3AD /* User Performance Counter Register 3 */ +#define SPRN_UPMC4 0x3AE /* User Performance Counter Register 4 */ +#define SPRN_USIA 0x3AB /* User Sampled Instruction Address Register */ +#define SPRN_VRSAVE 0x100 /* Vector Register Save Register */ +#define SPRN_XER 0x001 /* Fixed Point Exception Register */ + +/* Bit definitions for MMCR0 and PMC1 / PMC2. */ +#define MMCR0_PMC1_CYCLES (1 << 7) +#define MMCR0_PMC1_ICACHEMISS (5 << 7) +#define MMCR0_PMC1_DTLB (6 << 7) +#define MMCR0_PMC2_DCACHEMISS 0x6 +#define MMCR0_PMC2_CYCLES 0x1 +#define MMCR0_PMC2_ITLB 0x7 +#define MMCR0_PMC2_LOADMISSTIME 0x5 + +/* Short-hand versions for a number of the above SPRNs */ +#define CTR SPRN_CTR /* Counter Register */ +#define DAR SPRN_DAR /* Data Address Register */ +#define DABR SPRN_DABR /* Data Address Breakpoint Register */ +#define DBAT0L SPRN_DBAT0L /* Data BAT 0 Lower Register */ +#define DBAT0U SPRN_DBAT0U /* Data BAT 0 Upper Register */ +#define DBAT1L SPRN_DBAT1L /* Data BAT 1 Lower Register */ +#define DBAT1U SPRN_DBAT1U /* Data BAT 1 Upper Register */ +#define DBAT2L SPRN_DBAT2L /* Data BAT 2 Lower Register */ +#define DBAT2U SPRN_DBAT2U /* Data BAT 2 Upper Register */ +#define DBAT3L SPRN_DBAT3L /* Data BAT 3 Lower Register */ +#define DBAT3U SPRN_DBAT3U /* Data BAT 3 Upper Register */ +#define DBAT4L SPRN_DBAT4L /* Data BAT 4 Lower Register */ +#define DBAT4U SPRN_DBAT4U /* Data BAT 4 Upper Register */ +#define DBAT5L SPRN_DBAT5L /* Data BAT 5 Lower Register */ +#define DBAT5U SPRN_DBAT5U /* Data BAT 5 Upper Register */ +#define DBAT6L SPRN_DBAT6L /* Data BAT 6 Lower Register */ +#define DBAT6U SPRN_DBAT6U /* Data BAT 6 Upper Register */ +#define DBAT7L SPRN_DBAT7L /* Data BAT 7 Lower Register */ +#define DBAT7U SPRN_DBAT7U /* Data BAT 7 Upper Register */ +#define DEC SPRN_DEC /* Decrement Register */ +#define DMISS SPRN_DMISS /* Data TLB Miss Register */ +#define DSISR SPRN_DSISR /* Data Storage Interrupt Status Register */ +#define EAR SPRN_EAR /* External Address Register */ +#define HASH1 SPRN_HASH1 /* Primary Hash Address Register */ +#define HASH2 SPRN_HASH2 /* Secondary Hash Address Register */ +#define HID0 SPRN_HID0 /* Hardware Implementation Register 0 */ +#define HID1 SPRN_HID1 /* Hardware Implementation Register 1 */ +#define IABR SPRN_IABR /* Instruction Address Breakpoint Register */ +#define IBAT0L SPRN_IBAT0L /* Instruction BAT 0 Lower Register */ +#define IBAT0U SPRN_IBAT0U /* Instruction BAT 0 Upper Register */ +#define IBAT1L SPRN_IBAT1L /* Instruction BAT 1 Lower Register */ +#define IBAT1U SPRN_IBAT1U /* Instruction BAT 1 Upper Register */ +#define IBAT2L SPRN_IBAT2L /* Instruction BAT 2 Lower Register */ +#define IBAT2U SPRN_IBAT2U /* Instruction BAT 2 Upper Register */ +#define IBAT3L SPRN_IBAT3L /* Instruction BAT 3 Lower Register */ +#define IBAT3U SPRN_IBAT3U /* Instruction BAT 3 Upper Register */ +#define IBAT4L SPRN_IBAT4L /* Instruction BAT 4 Lower Register */ +#define IBAT4U SPRN_IBAT4U /* Instruction BAT 4 Upper Register */ +#define IBAT5L SPRN_IBAT5L /* Instruction BAT 5 Lower Register */ +#define IBAT5U SPRN_IBAT5U /* Instruction BAT 5 Upper Register */ +#define IBAT6L SPRN_IBAT6L /* Instruction BAT 6 Lower Register */ +#define IBAT6U SPRN_IBAT6U /* Instruction BAT 6 Upper Register */ +#define IBAT7L SPRN_IBAT7L /* Instruction BAT 7 Lower Register */ +#define IBAT7U SPRN_IBAT7U /* Instruction BAT 7 Upper Register */ +#define ICMP SPRN_ICMP /* Instruction TLB Compare Register */ +#define IMISS SPRN_IMISS /* Instruction TLB Miss Register */ +#define IMMR SPRN_IMMR /* PPC 860/821 Internal Memory Map Register */ +#define L2CR SPRN_L2CR /* Classic PPC L2 cache control register */ +#define L3CR SPRN_L3CR /* PPC 745x L3 cache control register */ +#define LR SPRN_LR +#define PVR SPRN_PVR /* Processor Version */ +#define RPA SPRN_RPA /* Required Physical Address Register */ +#define SDR1 SPRN_SDR1 /* MMU hash base register */ +#define SPR0 SPRN_SPRG0 /* Supervisor Private Registers */ +#define SPR1 SPRN_SPRG1 +#define SPR2 SPRN_SPRG2 +#define SPR3 SPRN_SPRG3 +#define SPR4 SPRN_SPRG4 +#define SPR5 SPRN_SPRG5 +#define SPR6 SPRN_SPRG6 +#define SPR7 SPRN_SPRG7 +#define SPRG0 SPRN_SPRG0 +#define SPRG1 SPRN_SPRG1 +#define SPRG2 SPRN_SPRG2 +#define SPRG3 SPRN_SPRG3 +#define SPRG4 SPRN_SPRG4 +#define SPRG5 SPRN_SPRG5 +#define SPRG6 SPRN_SPRG6 +#define SPRG7 SPRN_SPRG7 +#define SRR0 SPRN_SRR0 /* Save and Restore Register 0 */ +#define SRR1 SPRN_SRR1 /* Save and Restore Register 1 */ +#define SRR2 SPRN_SRR2 /* Save and Restore Register 2 */ +#define SRR3 SPRN_SRR3 /* Save and Restore Register 3 */ +#define ICTC SPRN_ICTC /* Instruction Cache Throttling Control Reg */ +#define THRM1 SPRN_THRM1 /* Thermal Management Register 1 */ +#define THRM2 SPRN_THRM2 /* Thermal Management Register 2 */ +#define THRM3 SPRN_THRM3 /* Thermal Management Register 3 */ +#define XER SPRN_XER +#define TBRL SPRN_TBRL /* Time Base Read Lower Register */ +#define TBRU SPRN_TBRU /* Time Base Read Upper Register */ +#define TBWL SPRN_TBWL /* Time Base Write Lower Register */ +#define TBWU SPRN_TBWU /* Time Base Write Upper Register */ + +/* Processor Version Register */ + +/* Processor Version Register (PVR) field extraction */ + +#define PVR_VER(pvr) (((pvr) >> 16) & 0xFFFF) /* Version field */ +#define PVR_REV(pvr) (((pvr) >> 0) & 0xFFFF) /* Revison field */ + +/* + * IBM has further subdivided the standard PowerPC 16-bit version and + * revision subfields of the PVR for the PowerPC 403s into the following: + */ + +#define PVR_FAM(pvr) (((pvr) >> 20) & 0xFFF) /* Family field */ +#define PVR_MEM(pvr) (((pvr) >> 16) & 0xF) /* Member field */ +#define PVR_CORE(pvr) (((pvr) >> 12) & 0xF) /* Core field */ +#define PVR_CFG(pvr) (((pvr) >> 8) & 0xF) /* Configuration field */ +#define PVR_MAJ(pvr) (((pvr) >> 4) & 0xF) /* Major revision field */ +#define PVR_MIN(pvr) (((pvr) >> 0) & 0xF) /* Minor revision field */ + +/* Processor Version Numbers */ + +#define PVR_403GA 0x00200000 +#define PVR_403GB 0x00200100 +#define PVR_403GC 0x00200200 +#define PVR_403GCX 0x00201400 +#define PVR_405GP 0x40110000 +#define PVR_STB03XXX 0x40310000 +#define PVR_NP405H 0x41410000 +#define PVR_NP405L 0x41610000 +#define PVR_440GP_RB 0x40120440 +#define PVR_440GP_RC1 0x40120481 +#define PVR_440GP_RC2 0x40200481 +#define PVR_440GX_RA 0x51b21850 +#define PVR_440GX_RB 0x51b21851 +#define PVR_440GX_RB1 0x51b21852 +#define PVR_601 0x00010000 +#define PVR_602 0x00050000 +#define PVR_603 0x00030000 +#define PVR_603e 0x00060000 +#define PVR_603ev 0x00070000 +#define PVR_603r 0x00071000 +#define PVR_604 0x00040000 +#define PVR_604e 0x00090000 +#define PVR_604r 0x000A0000 +#define PVR_620 0x00140000 +#define PVR_740 0x00080000 +#define PVR_750 PVR_740 +#define PVR_740P 0x10080000 +#define PVR_750P PVR_740P +#define PVR_7400 0x000C0000 +#define PVR_7410 0x800C0000 +#define PVR_7450 0x80000000 +/* + * For the 8xx processors, all of them report the same PVR family for + * the PowerPC core. The various versions of these processors must be + * differentiated by the version number in the Communication Processor + * Module (CPM). + */ +#define PVR_821 0x00500000 +#define PVR_823 PVR_821 +#define PVR_850 PVR_821 +#define PVR_860 PVR_821 +#define PVR_8240 0x00810100 +#define PVR_8245 0x80811014 +#define PVR_8260 PVR_8240 + +/* Segment Registers */ +#define SR0 0 +#define SR1 1 +#define SR2 2 +#define SR3 3 +#define SR4 4 +#define SR5 5 +#define SR6 6 +#define SR7 7 +#define SR8 8 +#define SR9 9 +#define SR10 10 +#define SR11 11 +#define SR12 12 +#define SR13 13 +#define SR14 14 +#define SR15 15 + + +/* returns r3 = relocated address of sym */ +/* modifies r0 */ +#define RELOC_SYM(sym) \ + mflr r3; \ + bl 1f; \ +1: mflr r0; \ + mtlr r3; \ + lis r3, 1b@ha; \ + ori r3, r3, 1b@l; \ + subf r0, r3, r0; \ + lis r3, sym@ha; \ + ori r3, r3, sym@l; \ + add r3, r3, r0 + diff --git a/kexec/arch/ppc64/Makefile b/kexec/arch/ppc64/Makefile new file mode 100644 index 00000000..66d11402 --- /dev/null +++ b/kexec/arch/ppc64/Makefile @@ -0,0 +1,7 @@ +# +# kexec ppc64 (linux booting linux) +# +KEXEC_C_SRCS+= kexec/arch/ppc64/kexec-elf-rel-ppc64.c +KEXEC_C_SRCS+= kexec/arch/ppc64/kexec-zImage-ppc64.c + +KEXEC_S_SRCS+= diff --git a/kexec/arch/ppc64/include/arch/options.h b/kexec/arch/ppc64/include/arch/options.h new file mode 100644 index 00000000..3fb04a78 --- /dev/null +++ b/kexec/arch/ppc64/include/arch/options.h @@ -0,0 +1,11 @@ +#ifndef KEXEC_ARCH_PPC64_OPTIONS_H +#define KEXEC_ARCH_PPC64_OPTIONS_H + +#define OPT_ARCH_MAX (OPT_MAX+0) + +#define KEXEC_ARCH_OPTIONS \ + KEXEC_OPTIONS \ + +#define KEXEC_ARCH_OPT_STR KEXEC_OPT_STR "" + +#endif /* KEXEC_ARCH_PPC64_OPTIONS_H */ diff --git a/kexec/arch/ppc64/kexec-elf-ppc64.c b/kexec/arch/ppc64/kexec-elf-ppc64.c new file mode 100644 index 00000000..16f32990 --- /dev/null +++ b/kexec/arch/ppc64/kexec-elf-ppc64.c @@ -0,0 +1,123 @@ +/* + * kexec: Linux boots Linux + * + * Copyright (C) 2004 Adam Litke (agl@us.ibm.com) + * Copyright (C) 2004 IBM Corp. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation (version 2 of the License). + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#define _GNU_SOURCE +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <errno.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/mman.h> +#include <fcntl.h> +#include <unistd.h> +#include <getopt.h> +#include <linux/elf.h> +#include "../../kexec.h" +#include "../../kexec-elf.h" +#include "kexec-ppc64.h" + +#define BOOTLOADER "kexec" +#define BOOTLOADER_VERSION VERSION +#define MAX_COMMAND_LINE 256 + +#define UPSZ(X) ((sizeof(X) + 3) & ~3) +static struct boot_notes { + Elf_Bhdr hdr; + Elf_Nhdr bl_hdr; + unsigned char bl_desc[UPSZ(BOOTLOADER)]; + Elf_Nhdr blv_hdr; + unsigned char blv_desc[UPSZ(BOOTLOADER_VERSION)]; + Elf_Nhdr cmd_hdr; + unsigned char command_line[0]; +} elf_boot_notes = { + .hdr = { + .b_signature = 0x0E1FB007, + .b_size = sizeof(elf_boot_notes), + .b_checksum = 0, + .b_records = 3, + }, + .bl_hdr = { + .n_namesz = 0, + .n_descsz = sizeof(BOOTLOADER), + .n_type = EBN_BOOTLOADER_NAME, + }, + .bl_desc = BOOTLOADER, + .blv_hdr = { + .n_namesz = 0, + .n_descsz = sizeof(BOOTLOADER_VERSION), + .n_type = EBN_BOOTLOADER_VERSION, + }, + .blv_desc = BOOTLOADER_VERSION, + .cmd_hdr = { + .n_namesz = 0, + .n_descsz = 0, + .n_type = EBN_COMMAND_LINE, + }, +}; + +int elf_ppc64_probe(const char *buf, off_t len) +{ + struct mem_ehdr ehdr; + int result; + result = build_elf_exec_info(buf, len, &ehdr); + if (result < 0) { + goto out; + } + + /* Verify the architecuture specific bits */ + if ((ehdr.e_machine != EM_PPC64) && (ehdr.e_machine != EM_PPC)) { + /* for a different architecture */ + result = -1; + goto out; + } + result = 0; + out: + free_elf_info(&ehdr); + return result; +} + +int elf_ppc64_load(int argc, char **argv, const char *buf, off_t len, + struct kexec_info *info) +{ + struct mem_ehdr ehdr; + + /* Parse command line arguments */ + + /* Parse the Elf file */ + result = build_elf_exec_info(buf, len, &ehdr); + if (result < 0) { + free_elf_info(&ehdr); + return result; + } + + /* Load the Elf data */ + result = elf_exec_load(&ehdr, info); + if (result < 0) { + free_elf_info(&ehdr); + return result; + } + return 1; +} + +void elf_ppc64_usage(void) +{ + fprintf(stderr, "elf support is still broken\n"); +} diff --git a/kexec/arch/ppc64/kexec-elf-rel-ppc64.c b/kexec/arch/ppc64/kexec-elf-rel-ppc64.c new file mode 100644 index 00000000..e2e82f43 --- /dev/null +++ b/kexec/arch/ppc64/kexec-elf-rel-ppc64.c @@ -0,0 +1,95 @@ +#include <stdio.h> +#include <elf.h> +#include "../../kexec.h" +#include "../../kexec-elf.h" + +int machine_verify_elf_rel(struct mem_ehdr *ehdr) +{ + if (ehdr->ei_data != ELFDATA2MSB) { + return 0; + } + if (ehdr->ei_class != ELFCLASS64) { + return 0; + } + if (ehdr->e_machine != EM_PPC64) { + return 0; + } + return 1; +} + +static struct mem_shdr *toc_section(const struct mem_ehdr *ehdr) +{ + struct mem_shdr *shdr, *shdr_end; + unsigned char *strtab; + strtab = ehdr->e_shdr[ehdr->e_shstrndx].sh_data; + shdr_end = &ehdr->e_shdr[ehdr->shnum]; + for(shdr = ehdr->e_shdr; shdr != shdr_end; shdr++) { + if (strcmp(shdr->sh_name, ".toc") == 0) { + return shdr; + } + } + return NULL; +} + +/* r2 is the TOC pointer: it actually points 0x8000 into the TOC (this + gives the value maximum span in an instruction which uses a signed + offset) */ +static unsigned long my_r2(const struct mem_ehdr *ehdr) +{ + struct mem_shdr *shdr; + shdr = toc_section(ehdr); + if (!shdr) { + die("TOC reloc without a toc section?"); + } + return shdr->sh_addr + 0x8000; +} + + +void machine_apply_elf_rel(struct mem_ehdr *ehdr, unsigned long r_type, + void *location, unsigned long address, unsigned long value) +{ + switch(r_type) { + case R_PPC64_ADDR32: + /* Simply set it */ + *(uint32_t *)location = value; + break; + + case R_PPC64_ADDR64: + /* Simply set it */ + *(uint64_t *)location = value; + break; + + case R_PPC64_TOC: + *(uint64_t *)location = my_r2(ehdr); + break; + + case R_PPC64_TOC16_DS: + /* Subtact TOC pointer */ + value -= my_r2(ehdr); + if ((value & 3) != 0 || value + 0x8000 > 0xffff) { + die("bad TOC16_DS relocation (%lu)\n", value); + } + *((uint16_t *) location) + = (*((uint16_t *) location) & ~0xfffc) + | (value & 0xfffc); + break; + + case R_PPC64_REL24: + /* Convert value to relative */ + value -= address; + if (value + 0x2000000 > 0x3ffffff || (value & 3) != 0){ + die("REL24 %li out of range!\n", + (long int)value); + } + + /* Only replace bits 2 through 26 */ + *(uint32_t *)location + = (*(uint32_t *)location & ~0x03fffffc) + | (value & 0x03fffffc); + break; + default: + die("Unknown rela relocation: %lu\n", r_type); + break; + } + return; +} diff --git a/kexec/arch/ppc64/kexec-ppc64.h b/kexec/arch/ppc64/kexec-ppc64.h new file mode 100644 index 00000000..73555cf5 --- /dev/null +++ b/kexec/arch/ppc64/kexec-ppc64.h @@ -0,0 +1,9 @@ +#ifndef KEXEC_PPC64_H +#define KEXEC_PPC64_H + +int elf_ppc64_probe(const char *buf, off_t len); +int elf_ppc64_load(int argc, char **argv, const char *buf, off_t len, + struct kexec_info *info); +void elf_ppc64_usage(void); + +#endif /* KEXEC_PPC_H */ diff --git a/kexec/arch/ppc64/kexec-zImage-ppc64.c b/kexec/arch/ppc64/kexec-zImage-ppc64.c new file mode 100644 index 00000000..2b5e00fc --- /dev/null +++ b/kexec/arch/ppc64/kexec-zImage-ppc64.c @@ -0,0 +1,173 @@ +/* + * kexec: Linux boots Linux + * + * Copyright (C) 2004 Adam Litke (agl@us.ibm.com) + * Copyright (C) 2004 IBM Corp. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation (version 2 of the License). + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#define _GNU_SOURCE +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <errno.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/mman.h> +#include <fcntl.h> +#include <unistd.h> +#include <getopt.h> +#include <linux/elf.h> +#include "../../kexec.h" + +#define MAX_HEADERS 32 + +int zImage_ppc64_probe(FILE *file) +{ + Elf32_Ehdr elf; + + if (fseek(file, 0, SEEK_SET) < 0) { + fprintf(stderr, "seek error: %s\n", + strerror(errno)); + return -1; + } + if (fread(&elf, sizeof(Elf32_Ehdr), 1, file) != 1) { + fprintf(stderr, "read error: %s\n", + strerror(errno)); + return -1; + } + + if (elf.e_machine == EM_PPC64) { + fprintf(stderr, "Elf64 not supported\n"); + return -1; + } + + return (elf.e_ident[EI_MAG0] == ELFMAG0 && + elf.e_ident[EI_MAG1] == ELFMAG1 && + elf.e_ident[EI_MAG2] == ELFMAG2 && + elf.e_ident[EI_MAG3] == ELFMAG3 && + elf.e_ident[EI_CLASS] == ELFCLASS32 && + elf.e_ident[EI_DATA] == ELFDATA2MSB && + elf.e_type == ET_EXEC && + elf.e_machine == EM_PPC); +} + +int zImage_ppc64_load(FILE *file, int argc, char **argv, void **ret_entry, + struct kexec_segment **ret_segments, int *ret_nr_segments) +{ + Elf32_Ehdr elf; + Elf32_Phdr *p, *ph; + struct kexec_segment *segment; + int i; + unsigned long memsize, filesize, offset, load_loc; + + /* Parse command line arguments */ + + /* Read in the Elf32 header */ + if (fseek(file, 0, SEEK_SET) < 0) { + perror("seek error:"); + return -1; + } + if (fread(&elf, sizeof(Elf32_Ehdr), 1, file) != 1) { + perror("read error: "); + return -1; + } + if (elf.e_phnum > MAX_HEADERS) { + fprintf(stderr, + "Only kernels with %i program headers are supported\n", + MAX_HEADERS); + return -1; + } + + /* Read the section header */ + ph = (Elf32_Phdr *)malloc(sizeof(Elf32_Phdr) * elf.e_phnum); + if (ph == 0) { + perror("malloc failed: "); + return -1; + } + if (fseek(file, elf.e_phoff, SEEK_SET) < 0) { + perror("seek failed: "); + return -1; + } + if (fread(ph, sizeof(Elf32_Phdr) * elf.e_phnum, 1, file) != 1) { + perror("read error: "); + return -1; + } + + *ret_segments = malloc(elf.e_phnum * sizeof(struct kexec_segment)); + if (*ret_segments == 0) { + fprintf(stderr, "malloc failed: %s\n", + strerror(errno)); + return -1; + } + segment = ret_segments[0]; + + /* Scan through the program header */ + memsize = filesize = offset = 0; + p = ph; + for (i = 0; i < elf.e_phnum; ++i, ++p) { + if (p->p_type != PT_LOAD || p->p_offset == 0) + continue; + if (memsize == 0) { + offset = p->p_offset; + memsize = p->p_memsz; + filesize = p->p_filesz; + load_loc = p->p_vaddr; + } else { + memsize = p->p_offset + p->p_memsz - offset; + filesize = p->p_offset + p->p_filesz - offset; + } + } + if (memsize == 0) { + fprintf(stderr, "Can't find a loadable segment.\n"); + return -1; + } + + /* Load program segments */ + p = ph; + segment->buf = malloc(filesize); + if (segment->buf == 0) { + perror("malloc failed: "); + return -1; + } + for (i = 0; i < elf.e_phnum; ++i, ++p) { + unsigned long mem_offset; + if (p->p_type != PT_LOAD || p->p_offset == 0) + continue; + + /* skip to the actual image */ + if (fseek(file, p->p_offset, SEEK_SET) < 0) { + perror("seek error: "); + return -1; + } + mem_offset = p->p_vaddr - load_loc; + if (fread(segment->buf+mem_offset, p->p_filesz, 1, file) != 1) { + perror("read error: "); + return -1; + } + } + segment->mem = (void *) load_loc; + segment->memsz = memsize; + segment->bufsz = filesize; + *ret_entry = elf.e_entry; + *ret_nr_segments = i - 1; + free(ph); + return 0; +} + +void zImage_ppc64_usage(void) +{ + fprintf(stderr, "zImage support is still broken\n"); +} diff --git a/kexec/arch/x86_64/Makefile b/kexec/arch/x86_64/Makefile new file mode 100644 index 00000000..366e7927 --- /dev/null +++ b/kexec/arch/x86_64/Makefile @@ -0,0 +1,12 @@ +# +# kexec x86_64 (linux booting linux) +# +KEXEC_C_SRCS+= kexec/arch/i386/kexec-elf-x86.c +KEXEC_C_SRCS+= kexec/arch/i386/kexec-bzImage.c +KEXEC_C_SRCS+= kexec/arch/i386/kexec-multiboot-x86.c +KEXEC_C_SRCS+= kexec/arch/i386/kexec-beoboot-x86.c +KEXEC_C_SRCS+= kexec/arch/i386/kexec-nbi.c +KEXEC_C_SRCS+= kexec/arch/i386/x86-linux-setup.c +KEXEC_C_SRCS+= kexec/arch/x86_64/kexec-x86_64.c +KEXEC_C_SRCS+= kexec/arch/x86_64/kexec-elf-x86_64.c +KEXEC_C_SRCS+= kexec/arch/x86_64/kexec-elf-rel-x86_64.c diff --git a/kexec/arch/x86_64/include/arch/options.h b/kexec/arch/x86_64/include/arch/options.h new file mode 100644 index 00000000..75065b99 --- /dev/null +++ b/kexec/arch/x86_64/include/arch/options.h @@ -0,0 +1,22 @@ +#ifndef KEXEC_ARCH_X86_64_OPTIONS_H +#define KEXEC_ARCH_X86_64_OPTIONS_H + +#define OPT_RESET_VGA (OPT_MAX+0) +#define OPT_SERIAL (OPT_MAX+1) +#define OPT_SERIAL_BAUD (OPT_MAX+2) +#define OPT_CONSOLE_VGA (OPT_MAX+3) +#define OPT_CONSOLE_SERIAL (OPT_MAX+4) +#define OPT_ARCH_MAX (OPT_MAX+5) + +#define KEXEC_ARCH_OPTIONS \ + KEXEC_OPTIONS \ + { "reset-vga", 0, 0, OPT_RESET_VGA }, \ + { "serial", 1, 0, OPT_SERIAL }, \ + { "serial-baud", 1, 0, OPT_SERIAL_BAUD }, \ + { "console-vga", 0, 0, OPT_CONSOLE_VGA }, \ + { "console-serial", 0, 0, OPT_CONSOLE_SERIAL }, \ + +#define KEXEC_ARCH_OPT_STR KEXEC_OPT_STR "" + +#endif /* KEXEC_ARCH_X86_64_OPTIONS_H */ + diff --git a/kexec/arch/x86_64/kexec-elf-rel-x86_64.c b/kexec/arch/x86_64/kexec-elf-rel-x86_64.c new file mode 100644 index 00000000..afcb1711 --- /dev/null +++ b/kexec/arch/x86_64/kexec-elf-rel-x86_64.c @@ -0,0 +1,93 @@ +#include <stdio.h> +#include <elf.h> +#include "../../kexec.h" +#include "../../kexec-elf.h" + +int machine_verify_elf_rel(struct mem_ehdr *ehdr) +{ + if (ehdr->ei_data != ELFDATA2LSB) { + return 0; + } + if (ehdr->ei_class != ELFCLASS64) { + return 0; + } + if (ehdr->e_machine != EM_X86_64) { + return 0; + } + return 1; +} + +static const char *reloc_name(unsigned long r_type) +{ + static const char *r_name[] = { + "R_X86_64_NONE", + "R_X86_64_64", + "R_X86_64_PC32", + "R_X86_64_GOT32", + "R_X86_64_PLT32", + "R_X86_64_COPY", + "R_X86_64_GLOB_DAT", + "R_X86_64_JUMP_SLOT", + "R_X86_64_RELATIVE", + "R_X86_64_GOTPCREL", + "R_X86_64_32", + "R_X86_64_32S", + "R_X86_64_16", + "R_X86_64_PC16", + "R_X86_64_8", + "R_X86_64_PC8", + "R_X86_64_DTPMOD64", + "R_X86_64_DTPOFF64", + "R_X86_64_TPOFF64", + "R_X86_64_TLSGD", + "R_X86_64_TLSLD", + "R_X86_64_DTPOFF32", + "R_X86_64_GOTTPOFF", + "R_X86_64_TPOFF32", + }; + static char buf[100]; + const char *name; + if (r_type < (sizeof(reloc_name)/sizeof(r_name[0]))){ + name = r_name[r_type]; + } + else { + sprintf(buf, "R_X86_64_%lu", r_type); + name = buf; + } + return name; +} + +void machine_apply_elf_rel(struct mem_ehdr *ehdr, unsigned long r_type, + void *location, unsigned long address, unsigned long value) +{ +#if 0 + fprintf(stderr, "%s\n", reloc_name(r_type)); +#endif + switch(r_type) { + case R_X86_64_NONE: + break; + case R_X86_64_64: + *(uint64_t *)location = value; + break; + case R_X86_64_32: + *(uint32_t *)location = value; + if (value != *(uint32_t *)location) + goto overflow; + break; + case R_X86_64_32S: + *(uint32_t *)location = value; + if ((int64_t)value != *(int32_t *)location) + goto overflow; + break; + case R_X86_64_PC32: + *(uint32_t *)location = value - address; + break; + default: + die("Unhandled rela relocation: %lu\n", reloc_name(r_type)); + break; + } + return; + overflow: + die("overflow in relocation type %s val %Lx\n", + reloc_name(r_type), value); +} diff --git a/kexec/arch/x86_64/kexec-elf-x86_64.c b/kexec/arch/x86_64/kexec-elf-x86_64.c new file mode 100644 index 00000000..88f78c9e --- /dev/null +++ b/kexec/arch/x86_64/kexec-elf-x86_64.c @@ -0,0 +1,239 @@ +/* + * kexec: Linux boots Linux + * + * Copyright (C) 2003-2005 Eric Biederman (ebiederm@xmission.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation (version 2 of the License). + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#define _GNU_SOURCE +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <errno.h> +#include <limits.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/mman.h> +#include <fcntl.h> +#include <unistd.h> +#include <getopt.h> +#include <elf.h> +#include <x86/x86-linux.h> +#include "../../kexec.h" +#include "../../kexec-elf.h" +#include "../../kexec-elf-boot.h" +#include "../i386/x86-linux-setup.h" +#include "kexec-x86_64.h" +#include <arch/options.h> + +static const int probe_debug = 0; + +int elf_x86_64_probe(const char *buf, off_t len) +{ + + struct mem_ehdr ehdr; + int result; + result = build_elf_exec_info(buf, len, &ehdr); + if (result < 0) { + if (probe_debug) { + fprintf(stderr, "Not an ELF executable\n"); + } + goto out; + } + + /* Verify the architecuture specific bits */ + if (ehdr.e_machine != EM_X86_64) { + /* for a different architecture */ + if (probe_debug) { + fprintf(stderr, "Not x86_64 ELF executable\n"); + } + result = -1; + goto out; + } + result = 0; + out: + free_elf_info(&ehdr); + return result; +} + +void elf_x86_64_usage(void) +{ + printf( " --command-line=STRING Set the kernel command line to STRING\n" + " --append=STRING Set the kernel command line to STRING\n" + " --initrd=FILE Use FILE as the kernel's initial ramdisk.\n" + " --ramdisk=FILE Use FILE as the kernel's initial ramdisk.\n" + " --args-linux Pass linux kernel style options\n" + " --args-elf Pass elf boot notes\n" + " --args-none Jump directly from the kernel\n" + ); +} + +int elf_x86_64_load(int argc, char **argv, const char *buf, off_t len, + struct kexec_info *info) +{ + struct mem_ehdr ehdr; + const char *command_line; + int command_line_len; + const char *ramdisk; + unsigned long entry, max_addr; + int arg_style; +#define ARG_STYLE_ELF 0 +#define ARG_STYLE_LINUX 1 +#define ARG_STYLE_NONE 2 + int opt; +#define OPT_APPEND (OPT_ARCH_MAX+0) +#define OPT_RAMDISK (OPT_ARCH_MAX+1) +#define OPT_ARGS_ELF (OPT_ARCH_MAX+2) +#define OPT_ARGS_LINUX (OPT_ARCH_MAX+3) +#define OPT_ARGS_NONE (OPT_ARCH_MAX+4) + + static const struct option options[] = { + KEXEC_ARCH_OPTIONS + { "command-line", 1, NULL, OPT_APPEND }, + { "append", 1, NULL, OPT_APPEND }, + { "initrd", 1, NULL, OPT_RAMDISK }, + { "ramdisk", 1, NULL, OPT_RAMDISK }, + { "args-elf", 0, NULL, OPT_ARGS_ELF }, + { "args-linux", 0, NULL, OPT_ARGS_LINUX }, + { "args-none", 0, NULL, OPT_ARGS_NONE }, + { 0, 0, NULL, 0 }, + }; + + static const char short_options[] = KEXEC_ARCH_OPT_STR ""; + + /* + * Parse the command line arguments + */ + arg_style = ARG_STYLE_ELF; + command_line = 0; + ramdisk = 0; + while((opt = getopt_long(argc, argv, short_options, options, 0)) != -1) { + switch(opt) { + default: + /* Ignore core options */ + if (opt < OPT_ARCH_MAX) { + break; + } + fprintf(stderr, "Unknown option: opt: %d\n", opt); + case '?': + usage(); + return -1; + case OPT_APPEND: + command_line = optarg; + break; + case OPT_RAMDISK: + ramdisk = optarg; + break; + case OPT_ARGS_ELF: + arg_style = ARG_STYLE_ELF; + break; + case OPT_ARGS_LINUX: + arg_style = ARG_STYLE_LINUX; + break; + case OPT_ARGS_NONE: +#ifdef __x86_64___ + arg_style = ARG_STYLE_NONE; +#else + die("--args-none only works on arch x86_64\n"); +#endif + break; + } + } + command_line_len = 0; + if (command_line) { + command_line_len = strlen(command_line) +1; + } + + /* Load the ELF executable */ + elf_exec_build_load(info, &ehdr, buf, len); + + entry = ehdr.e_entry; + max_addr = elf_max_addr(&ehdr); + + /* Do we want arguments? */ + if (arg_style != ARG_STYLE_NONE) { + /* Load the setup code */ + elf_rel_build_load(info, &info->rhdr, purgatory, purgatory_size, + 0, ULONG_MAX, 1); + } + if (arg_style == ARG_STYLE_NONE) { + info->entry = (void *)entry; + + } + else if (arg_style == ARG_STYLE_ELF) { + unsigned long note_base; + struct entry64_regs regs; + + /* Setup the ELF boot notes */ + note_base = elf_boot_notes(info, max_addr, + command_line, command_line_len); + + /* Initialize the registers */ + elf_rel_get_symbol(&info->rhdr, "entry64_regs", ®s, sizeof(regs)); + regs.rdi = note_base; /* The notes (arg1) */ + regs.rip = entry; /* The entry point */ + regs.rsp = elf_rel_get_addr(&info->rhdr, "stack_end"); /* Stack, unused */ + elf_rel_set_symbol(&info->rhdr, "entry64_regs", ®s, sizeof(regs)); + + if (ramdisk) { + die("Ramdisks not supported with generic elf arguments"); + } + } + else if (arg_style == ARG_STYLE_LINUX) { + struct x86_linux_faked_param_header *hdr; + unsigned long param_base; + const unsigned char *ramdisk_buf; + off_t ramdisk_length; + struct entry64_regs regs; + + /* Get the linux parameter header */ + hdr = xmalloc(sizeof(*hdr)); + param_base = add_buffer(info, hdr, sizeof(*hdr), sizeof(*hdr), + 16, 0, max_addr, 1); + + /* Initialize the parameter header */ + memset(hdr, 0, sizeof(*hdr)); + init_linux_parameters(&hdr->hdr); + + /* Add a ramdisk to the current image */ + ramdisk_buf = 0; + ramdisk_length = 0; + if (ramdisk) { + unsigned char *ramdisk_buf; + ramdisk_buf = slurp_file(ramdisk, &ramdisk_length); + } + + /* Tell the kernel what is going on */ + setup_linux_bootloader_parameters(info, &hdr->hdr, param_base, + offsetof(struct x86_linux_faked_param_header, command_line), + command_line, command_line_len, + ramdisk_buf, ramdisk_length); + + /* Fill in the information bios calls would usually provide */ + setup_linux_system_parameters(&hdr->hdr); + + /* Initialize the registers */ + elf_rel_get_symbol(&info->rhdr, "entry64_regs", ®s, sizeof(regs)); + regs.rbx = 0; /* Bootstrap processor */ + regs.rsi = param_base; /* Pointer to the parameters */ + regs.rip = entry; /* the entry point */ + regs.rsp = elf_rel_get_addr(&info->rhdr, "stack_end"); /* Stack, unused */ + elf_rel_set_symbol(&info->rhdr, "entry64_regs", ®s, sizeof(regs)); + } + else { + die("Unknown argument style\n"); + } + return 0; +} diff --git a/kexec/arch/x86_64/kexec-x86_64.c b/kexec/arch/x86_64/kexec-x86_64.c new file mode 100644 index 00000000..523b2b00 --- /dev/null +++ b/kexec/arch/x86_64/kexec-x86_64.c @@ -0,0 +1,247 @@ +/* + * kexec: Linux boots Linux + * + * Copyright (C) 2003,2004 Eric Biederman (ebiederm@xmission.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation (version 2 of the License). + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <stddef.h> +#include <stdio.h> +#include <errno.h> +#include <stdint.h> +#include <string.h> +#include <limits.h> +#include <stdlib.h> +#include <getopt.h> +#include <sys/utsname.h> +#include "../../kexec.h" +#include "../../kexec-elf.h" +#include "../../kexec-syscall.h" +#include "kexec-x86_64.h" +#include <arch/options.h> + +#define MAX_MEMORY_RANGES 64 +#define MAX_LINE 160 +static struct memory_range memory_range[MAX_MEMORY_RANGES]; + +/* Return a sorted list of memory ranges. */ +int get_memory_ranges(struct memory_range **range, int *ranges) +{ + const char iomem[]= "/proc/iomem"; + int memory_ranges = 0; + char line[MAX_LINE]; + FILE *fp; + fp = fopen(iomem, "r"); + if (!fp) { + fprintf(stderr, "Cannot open %s: %s\n", + iomem, strerror(errno)); + return -1; + } + while(fgets(line, sizeof(line), fp) != 0) { + unsigned long long start, end; + char *str; + int type; + int consumed; + int count; + if (memory_ranges >= MAX_MEMORY_RANGES) + break; + count = sscanf(line, "%Lx-%Lx : %n", + &start, &end, &consumed); + if (count != 2) + continue; + str = line + consumed; + end = end + 1; +#if 0 + printf("%016Lx-%016Lx : %s", + start, end, str); +#endif + if (memcmp(str, "System RAM\n", 11) == 0) { + type = RANGE_RAM; + } + else if (memcmp(str, "reserved\n", 9) == 0) { + type = RANGE_RESERVED; + } + else if (memcmp(str, "ACPI Tables\n", 12) == 0) { + type = RANGE_ACPI; + } + else if (memcmp(str, "ACPI Non-volatile Storage\n", 26) == 0) { + type = RANGE_ACPI_NVS; + } + else { + continue; + } + /* Don't report the interrupt table as ram */ + if (type == RANGE_RAM && (start < 0x100)) { + start = 0x100; + } + memory_range[memory_ranges].start = start; + memory_range[memory_ranges].end = end; + memory_range[memory_ranges].type = type; +#if 0 + printf("%016Lx-%016Lx : %x\n", + start, end, type); +#endif + memory_ranges++; + } + fclose(fp); + *range = memory_range; + *ranges = memory_ranges; + return 0; +} + +struct file_type file_type[] = { + { "elf-x86_64", elf_x86_64_probe, elf_x86_64_load, elf_x86_64_usage }, + { "multiboot-x86", multiboot_x86_probe, multiboot_x86_load, + multiboot_x86_usage }, + { "elf-x86", elf_x86_probe, elf_x86_load, elf_x86_usage }, + { "bzImage", bzImage_probe, bzImage_load, bzImage_usage }, + { "beoboot-x86", beoboot_probe, beoboot_load, beoboot_usage }, + { "nbi-x86", nbi_probe, nbi_load, nbi_usage }, +}; +int file_types = sizeof(file_type)/sizeof(file_type[0]); + + +void arch_usage(void) +{ + printf( + " --reset-vga Attempt to reset a standard vga device\n" + " --serial=<port> Specify the serial port for debug output\n" + " --serial-baud=<buad_rate> Specify the serial port baud rate\n" + " --console-vga Enable the vga console\n" + " --console-serial Enable the serial console\n" + ); +} + +static struct { + uint8_t reset_vga; + uint16_t serial_base; + uint32_t serial_baud; + uint8_t console_vga; + uint8_t console_serial; +} arch_options = { + .reset_vga = 0, + .serial_base = 0x3f8, + .serial_baud = 0, + .console_vga = 0, + .console_serial = 0, +}; + +int arch_process_options(int argc, char **argv) +{ + static const struct option options[] = { + KEXEC_ARCH_OPTIONS + { 0, 0, NULL, 0 }, + }; + static const char short_options[] = KEXEC_ARCH_OPT_STR; + int opt; + unsigned long value; + char *end; + + opterr = 0; /* Don't complain about unrecognized options here */ + while((opt = getopt_long(argc, argv, short_options, options, 0)) != -1) { + switch(opt) { + default: + break; + case OPT_RESET_VGA: + arch_options.reset_vga = 1; + break; + case OPT_CONSOLE_VGA: + arch_options.console_vga = 1; + break; + case OPT_CONSOLE_SERIAL: + arch_options.console_serial = 1; + break; + case OPT_SERIAL: + value = ULONG_MAX; + if (strcmp(optarg, "ttyS0") == 0) { + value = 0x3f8; + } + else if (strcmp(optarg, "ttyS1") == 0) { + value = 0x2f8; + } + else if (strncmp(optarg, "0x", 2) == 0) { + value = strtoul(optarg +2, &end, 16); + if (*end != '\0') { + value = ULONG_MAX; + } + } + if (value >= 65536) { + fprintf(stderr, "Bad serial port base '%s'\n", + optarg); + usage(); + return -1; + + } + arch_options.serial_base = value; + break; + case OPT_SERIAL_BAUD: + value = strtoul(optarg, &end, 0); + if ((value > 115200) || ((115200 %value) != 0) || + (value < 9600) || (*end)) + { + fprintf(stderr, "Bad serial port baud rate '%s'\n", + optarg); + usage(); + return -1; + + } + arch_options.serial_baud = value; + break; + } + } + /* Reset getopt for the next pass; called in other source modules */ + opterr = 1; + optind = 1; + return 0; +} + +int arch_compat_trampoline(struct kexec_info *info, unsigned long *flags) +{ + int result; + struct utsname utsname; + result = uname(&utsname); + if (result < 0) { + fprintf(stderr, "uname failed: %s\n", + strerror(errno)); + return -1; + } + if (strcmp(utsname.machine, "x86_64") == 0) + { + /* For compatibility with older patches + * use KEXEC_ARCH_DEFAULT instead of KEXEC_ARCH_X86_64 here. + */ + *flags |= KEXEC_ARCH_DEFAULT; + } + else { + fprintf(stderr, "Unsupported machine type: %s\n", + utsname.machine); + return -1; + } + return 0; +} + +void arch_update_purgatory(struct kexec_info *info) +{ + elf_rel_set_symbol(&info->rhdr, "reset_vga", + &arch_options.reset_vga, sizeof(arch_options.reset_vga)); + elf_rel_set_symbol(&info->rhdr, "serial_base", + &arch_options.serial_base, sizeof(arch_options.serial_base)); + elf_rel_set_symbol(&info->rhdr, "serial_baud", + &arch_options.serial_baud, sizeof(arch_options.serial_baud)); + elf_rel_set_symbol(&info->rhdr, "console_vga", + &arch_options.console_vga, sizeof(arch_options.console_vga)); + elf_rel_set_symbol(&info->rhdr, "console_serial", + &arch_options.console_serial, sizeof(arch_options.console_serial)); +} diff --git a/kexec/arch/x86_64/kexec-x86_64.h b/kexec/arch/x86_64/kexec-x86_64.h new file mode 100644 index 00000000..a97cd717 --- /dev/null +++ b/kexec/arch/x86_64/kexec-x86_64.h @@ -0,0 +1,31 @@ +#ifndef KEXEC_X86_64_H +#define KEXEC_X86_64_H + +#include "../i386/kexec-x86.h" + +struct entry64_regs { + uint64_t rax; + uint64_t rbx; + uint64_t rcx; + uint64_t rdx; + uint64_t rsi; + uint64_t rdi; + uint64_t rsp; + uint64_t rbp; + uint64_t r8; + uint64_t r9; + uint64_t r10; + uint64_t r11; + uint64_t r12; + uint64_t r13; + uint64_t r14; + uint64_t r15; + uint64_t rip; +}; + +int elf_x86_64_probe(const char *buf, off_t len); +int elf_x86_64_load(int argc, char **argv, const char *buf, off_t len, + struct kexec_info *info); +void elf_x86_64_usage(void); + +#endif /* KEXEC_X86_64_H */ diff --git a/kexec/ifdown.c b/kexec/ifdown.c new file mode 100644 index 00000000..d480b3be --- /dev/null +++ b/kexec/ifdown.c @@ -0,0 +1,74 @@ +/* + * ifdown.c Find all network interfaces on the system and + * shut them down. + * + */ +char *v_ifdown = "@(#)ifdown.c 1.11 02-Jun-1998 miquels@cistron.nl"; + +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <time.h> +#include <string.h> + +#include <sys/ioctl.h> +#include <sys/socket.h> +#include <sys/time.h> +#include <sys/errno.h> + +#include <net/if.h> +#include <netinet/in.h> + +#define MAX_IFS 64 + +/* + * First, we find all shaper devices and down them. Then we + * down all real interfaces. This is because the comment in the + * shaper driver says "if you down the shaper device before the + * attached inerface your computer will follow". + */ +int ifdown(void) +{ + struct ifreq ifr[MAX_IFS]; + struct ifconf ifc; + int i, fd; + int numif; + int shaper; + + if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { + fprintf(stderr, "ifdown: "); + perror("socket"); + return -1; + } + ifc.ifc_len = sizeof(ifr); + ifc.ifc_req = ifr; + + if (ioctl(fd, SIOCGIFCONF, &ifc) < 0) { + fprintf(stderr, "ifdown: "); + perror("SIOCGIFCONF"); + close(fd); + return -1; + } + numif = ifc.ifc_len / sizeof(struct ifreq); + + for (shaper = 1; shaper >= 0; shaper--) { + for (i = 0; i < numif; i++) { + + if ((strncmp(ifr[i].ifr_name, "shaper", 6) == 0) + != shaper) continue; + + if (strcmp(ifr[i].ifr_name, "lo") == 0) + continue; + if (strchr(ifr[i].ifr_name, ':') != NULL) + continue; + ifr[i].ifr_flags &= ~(IFF_UP); + if (ioctl(fd, SIOCSIFFLAGS, &ifr[i]) < 0) { + fprintf(stderr, "ifdown: shutdown "); + perror(ifr[i].ifr_name); + } + } + } + close(fd); + + return 0; +} diff --git a/kexec/kexec-elf-boot.c b/kexec/kexec-elf-boot.c new file mode 100644 index 00000000..bc650b77 --- /dev/null +++ b/kexec/kexec-elf-boot.c @@ -0,0 +1,95 @@ +/* + * kexec: Linux boots Linux + * + * Copyright (C) 2003-2005 Eric Biederman (ebiederm@xmission.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation (version 2 of the License). + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#define _GNU_SOURCE +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <errno.h> +#include <elf.h> +#include <boot/elf_boot.h> +#include <ip_checksum.h> +#include <x86/x86-linux.h> +#include "kexec.h" +#include "kexec-elf.h" +#include "kexec-elf-boot.h" + + +#define UPSZ(X) ((sizeof(X) + 3) &~3) + +static struct boot_notes { + Elf_Bhdr hdr; + Elf_Nhdr bl_hdr; + unsigned char bl_desc[UPSZ(BOOTLOADER)]; + Elf_Nhdr blv_hdr; + unsigned char blv_desc[UPSZ(BOOTLOADER_VERSION)]; + Elf_Nhdr cmd_hdr; + unsigned char command_line[0]; +} boot_notes = { + .hdr = { + .b_signature = ELF_BOOT_MAGIC, + .b_size = sizeof(boot_notes), + .b_checksum = 0, + .b_records = 3, + }, + .bl_hdr = { + .n_namesz = 0, + .n_descsz = sizeof(BOOTLOADER), + .n_type = EBN_BOOTLOADER_NAME, + }, + .bl_desc = BOOTLOADER, + .blv_hdr = { + .n_namesz = 0, + .n_descsz = sizeof(BOOTLOADER_VERSION), + .n_type = EBN_BOOTLOADER_VERSION, + }, + .blv_desc = BOOTLOADER_VERSION, + .cmd_hdr = { + .n_namesz = 0, + .n_descsz = 0, + .n_type = EBN_COMMAND_LINE, + }, +}; + +static inline unsigned long align(unsigned long val, unsigned long align) +{ + return (val + align - 1) & ~(align - 1); + +} + +unsigned long elf_boot_notes( + struct kexec_info *info, unsigned long max_addr, + const unsigned char *cmdline, int cmdline_len) +{ + unsigned long note_bytes; + unsigned long note_base; + struct boot_notes *notes; + note_bytes = sizeof(*notes) + align(cmdline_len, 4); + notes = xmalloc(note_bytes); + memcpy(notes, &boot_notes, sizeof(boot_notes)); + memcpy(notes->command_line, cmdline, cmdline_len); + notes->hdr.b_size = note_bytes; + notes->cmd_hdr.n_descsz = cmdline_len; + notes->hdr.b_checksum = compute_ip_checksum(notes, note_bytes); + + note_base = add_buffer(info, notes, note_bytes, note_bytes, + 4, 0, max_addr, 1); + + return note_base; +} diff --git a/kexec/kexec-elf-boot.h b/kexec/kexec-elf-boot.h new file mode 100644 index 00000000..843a89bc --- /dev/null +++ b/kexec/kexec-elf-boot.h @@ -0,0 +1,8 @@ +#ifndef KEXEC_ELF_BOOT_H +#define KEXEC_ELF_BOOT_H + +unsigned long elf_boot_notes( + struct kexec_info *info, unsigned long max_addr, + const unsigned char *cmdline, int cmdline_len); + +#endif /* KEXEC_ELF_BOOT_H */ diff --git a/kexec/kexec-elf-exec.c b/kexec/kexec-elf-exec.c new file mode 100644 index 00000000..324516c1 --- /dev/null +++ b/kexec/kexec-elf-exec.c @@ -0,0 +1,149 @@ +#include <limits.h> +#include <stdint.h> +#include <string.h> +#include <stdio.h> +#include <errno.h> +#include <stdlib.h> +#include "elf.h" +#include <boot/elf_boot.h> +#include "kexec.h" +#include "kexec-elf.h" + +static const int probe_debug = 0; + +int build_elf_exec_info(const char *buf, off_t len, struct mem_ehdr *ehdr) +{ + struct mem_phdr *phdr, *end_phdr; + int result; + result = build_elf_info(buf, len, ehdr); + if (result < 0) { + return result; + } + if ((ehdr->e_type != ET_EXEC) && (ehdr->e_type != ET_DYN)) { + /* not an ELF executable */ + if (probe_debug) { + fprintf(stderr, "Not ELF type ET_EXEC or ET_DYN\n"); + } + return -1; + } + if (!ehdr->e_phdr) { + /* No program header */ + fprintf(stderr, "No ELF program header\n"); + return -1; + } + end_phdr = &ehdr->e_phdr[ehdr->e_phnum]; + for(phdr = ehdr->e_phdr; phdr != end_phdr; phdr++) { + /* Kexec does not support loading interpreters. + * In addition this check keeps us from attempting + * to kexec ordinay executables. + */ + if (phdr->p_type == PT_INTERP) { + fprintf(stderr, "Requires an ELF interpreter\n"); + return -1; + } + } + + return 0; +} + + +int elf_exec_load(const struct mem_ehdr *ehdr, struct kexec_info *info) +{ + unsigned long base; + int result; + int i; + + if (!ehdr->e_phdr) { + fprintf(stderr, "No program header?\n"); + result = -1; + goto out; + } + + /* If I have a dynamic executable find it's size + * and then find a location for it in memory. + */ + base = 0; + if (ehdr->e_type == ET_DYN) { + unsigned long first, last, align; + first = ULONG_MAX; + last = 0; + align = 0; + for(i = 0; i < ehdr->e_phnum; i++) { + unsigned long start, stop; + struct mem_phdr *phdr; + phdr = &ehdr->e_phdr[i]; + if ((phdr->p_type != PT_LOAD) || + (phdr->p_memsz == 0)) + { + continue; + } + start = phdr->p_paddr; + stop = start + phdr->p_memsz; + if (start > first) { + start = first; + } + if (last < stop) { + last = stop; + } + if (align < phdr->p_align) { + align = phdr->p_align; + } + } + /* If I can't use the default paddr find a new + * hole for the dynamic executable. + */ + if (!valid_memory_range(first, last)) { + unsigned long hole; + hole = locate_hole(info, + last - first + 1, align, + 0, elf_max_addr(ehdr), 1); + if (hole == ULONG_MAX) { + result = -1; + goto out; + } + /* Base is the value that when added + * to any virtual address in the file + * yields it's load virtual address. + */ + base = hole - first; + } + + } + + /* Read in the PT_LOAD segments */ + for(i = 0; i < ehdr->e_phnum; i++) { + struct mem_phdr *phdr; + size_t size; + phdr = &ehdr->e_phdr[i]; + if (phdr->p_type != PT_LOAD) { + continue; + } + size = phdr->p_filesz; + if (size > phdr->p_memsz) { + size = phdr->p_memsz; + } + add_segment(info, + phdr->p_data, size, + phdr->p_paddr + base, phdr->p_memsz); + } + result = 0; + out: + return result; +} + +void elf_exec_build_load(struct kexec_info *info, struct mem_ehdr *ehdr, + const char *buf, off_t len) +{ + int result; + /* Parse the Elf file */ + result = build_elf_exec_info(buf, len, ehdr); + if (result < 0) { + die("ELF exec parse failed\n"); + } + + /* Load the Elf data */ + result = elf_exec_load(ehdr, info); + if (result < 0) { + die("ELF exec load failed\n"); + } +} diff --git a/kexec/kexec-elf-rel.c b/kexec/kexec-elf-rel.c new file mode 100644 index 00000000..560c6599 --- /dev/null +++ b/kexec/kexec-elf-rel.c @@ -0,0 +1,531 @@ +#include <limits.h> +#include <stdint.h> +#include <string.h> +#include <stdio.h> +#include <errno.h> +#include <stdlib.h> +#include "elf.h" +#include <boot/elf_boot.h> +#include "kexec.h" +#include "kexec-elf.h" + +static const int probe_debug = 0; + +static size_t elf_sym_size(struct mem_ehdr *ehdr) +{ + size_t sym_size = 0; + if (ehdr->ei_class == ELFCLASS32) { + sym_size = sizeof(Elf32_Sym); + } + else if (ehdr->ei_class == ELFCLASS64) { + sym_size = sizeof(Elf64_Sym); + } + else { + die("Bad elf class"); + } + return sym_size; +} + +static size_t elf_rel_size(struct mem_ehdr *ehdr) +{ + size_t rel_size = 0; + if (ehdr->ei_class == ELFCLASS32) { + rel_size = sizeof(Elf32_Rel); + } + else if (ehdr->ei_class == ELFCLASS64) { + rel_size = sizeof(Elf64_Rel); + } + else { + die("Bad elf class"); + } + return rel_size; +} + +static size_t elf_rela_size(struct mem_ehdr *ehdr) +{ + size_t rel_size = 0; + if (ehdr->ei_class == ELFCLASS32) { + rel_size = sizeof(Elf32_Rela); + } + else if (ehdr->ei_class == ELFCLASS64) { + rel_size = sizeof(Elf64_Rela); + } + else { + die("Bad elf class"); + } + return rel_size; +} + +static struct mem_sym elf_sym(struct mem_ehdr *ehdr, const unsigned char *ptr) +{ + struct mem_sym sym; + if (ehdr->ei_class == ELFCLASS32) { + Elf32_Sym lsym; + memcpy(&lsym, ptr, sizeof(lsym)); + sym.st_name = elf32_to_cpu(ehdr, lsym.st_name); + sym.st_value = elf32_to_cpu(ehdr, lsym.st_value); + sym.st_size = elf32_to_cpu(ehdr, lsym.st_size); + sym.st_info = lsym.st_info; + sym.st_other = lsym.st_other; + sym.st_shndx = elf16_to_cpu(ehdr, lsym.st_shndx); + } + else if (ehdr->ei_class == ELFCLASS64) { + Elf64_Sym lsym; + memcpy(&lsym, ptr, sizeof(lsym)); + sym.st_name = elf32_to_cpu(ehdr, lsym.st_name); + sym.st_value = elf64_to_cpu(ehdr, lsym.st_value); + sym.st_size = elf64_to_cpu(ehdr, lsym.st_size); + sym.st_info = lsym.st_info; + sym.st_other = lsym.st_other; + sym.st_shndx = elf16_to_cpu(ehdr, lsym.st_shndx); + } + else { + die("Bad elf class"); + } + return sym; +} + +static struct mem_rela elf_rel(struct mem_ehdr *ehdr, const unsigned char *ptr) +{ + struct mem_rela rela; + if (ehdr->ei_class == ELFCLASS32) { + Elf32_Rel lrel; + memcpy(&lrel, ptr, sizeof(lrel)); + rela.r_offset = elf32_to_cpu(ehdr, lrel.r_offset); + rela.r_sym = ELF32_R_SYM(elf32_to_cpu(ehdr, lrel.r_info)); + rela.r_type = ELF32_R_TYPE(elf32_to_cpu(ehdr, lrel.r_info)); + rela.r_addend = 0; + } + else if (ehdr->ei_class == ELFCLASS64) { + Elf64_Rel lrel; + memcpy(&lrel, ptr, sizeof(lrel)); + rela.r_offset = elf64_to_cpu(ehdr, lrel.r_offset); + rela.r_sym = ELF64_R_SYM(elf64_to_cpu(ehdr, lrel.r_info)); + rela.r_type = ELF64_R_TYPE(elf64_to_cpu(ehdr, lrel.r_info)); + rela.r_addend = 0; + } + else { + die("Bad elf class"); + } + return rela; +} + +static struct mem_rela elf_rela(struct mem_ehdr *ehdr, const unsigned char *ptr) +{ + struct mem_rela rela; + if (ehdr->ei_class == ELFCLASS32) { + Elf32_Rela lrela; + memcpy(&lrela, ptr, sizeof(lrela)); + rela.r_offset = elf32_to_cpu(ehdr, lrela.r_offset); + rela.r_sym = ELF32_R_SYM(elf32_to_cpu(ehdr, lrela.r_info)); + rela.r_type = ELF32_R_TYPE(elf32_to_cpu(ehdr, lrela.r_info)); + rela.r_addend = elf32_to_cpu(ehdr, lrela.r_addend); + } + else if (ehdr->ei_class == ELFCLASS64) { + Elf64_Rela lrela; + memcpy(&lrela, ptr, sizeof(lrela)); + rela.r_offset = elf64_to_cpu(ehdr, lrela.r_offset); + rela.r_sym = ELF64_R_SYM(elf64_to_cpu(ehdr, lrela.r_info)); + rela.r_type = ELF64_R_TYPE(elf64_to_cpu(ehdr, lrela.r_info)); + rela.r_addend = elf64_to_cpu(ehdr, lrela.r_addend); + } + else { + die("Bad elf class"); + } + return rela; +} + +int build_elf_rel_info(const char *buf, off_t len, struct mem_ehdr *ehdr) +{ + int result; + result = build_elf_info(buf, len, ehdr); + if (result < 0) { + return result; + } + if (ehdr->e_type != ET_REL) { + /* not an ELF relocate object */ + if (probe_debug) { + fprintf(stderr, "Not ELF type ET_REL\n"); + fprintf(stderr, "ELF Type: %x\n", ehdr->e_type); + } + return -1; + } + if (!ehdr->e_shdr) { + /* No section headers */ + if (probe_debug) { + fprintf(stderr, "No ELF section headers\n"); + } + return -1; + } + if (!machine_verify_elf_rel(ehdr)) { + /* It does not meant the native architecture constraints */ + if (probe_debug) { + fprintf(stderr, "ELF architecture constraint failure\n"); + } + return -1; + } + return 0; +} + + +int elf_rel_load(struct mem_ehdr *ehdr, struct kexec_info *info, + unsigned long min, unsigned long max, int end) +{ + struct mem_shdr *shdr, *shdr_end, *entry_shdr; + unsigned long entry; + int result; + unsigned char *buf; + unsigned long buf_align, bufsz, bss_align, bsssz, bss_pad; + unsigned long buf_addr, data_addr, bss_addr; + + if (max > elf_max_addr(ehdr)) { + max = elf_max_addr(ehdr); + } + if (!ehdr->e_shdr) { + fprintf(stderr, "No section header?\n"); + result = -1; + goto out; + } + shdr_end = &ehdr->e_shdr[ehdr->e_shnum]; + + /* Find which section entry is in */ + entry_shdr = NULL; + entry = ehdr->e_entry; + for(shdr = ehdr->e_shdr; shdr != shdr_end; shdr++) { + if (!(shdr->sh_flags & SHF_ALLOC)) { + continue; + } + if (!(shdr->sh_flags & SHF_EXECINSTR)) { + continue; + } + /* Make entry section relative */ + if ((shdr->sh_addr <= ehdr->e_entry) && + ((shdr->sh_addr + shdr->sh_size) > ehdr->e_entry)) { + entry_shdr = shdr; + entry -= shdr->sh_addr; + break; + } + } + + /* Find the memory footprint of the relocatable object */ + buf_align = 1; + bss_align = 1; + bufsz = 0; + bsssz = 0; + for(shdr = ehdr->e_shdr; shdr != shdr_end; shdr++) { + if (!(shdr->sh_flags & SHF_ALLOC)) { + continue; + } + if (shdr->sh_type != SHT_NOBITS) { + unsigned long align; + align = shdr->sh_addralign; + /* See if I need more alignment */ + if (buf_align < align) { + buf_align = align; + } + /* Now align bufsz */ + bufsz = (bufsz + (align - 1)) & ~(align - 1); + /* And now add our buffer */ + bufsz += shdr->sh_size; + } + else { + unsigned long align; + align = shdr->sh_addralign; + /* See if I need more alignment */ + if (bss_align < align) { + bss_align = align; + } + /* Now align bsssz */ + bsssz = (bsssz + (align - 1)) & ~(align -1); + /* And now add our buffer */ + bsssz += shdr->sh_size; + } + } + if (buf_align < bss_align) { + buf_align = bss_align; + } + bss_pad = 0; + if (bufsz & (bss_align - 1)) { + bss_pad = bss_align - (bufsz & (bss_align - 1)); + } + + /* Allocate where we will put the relocated object */ + buf = xmalloc(bufsz); + buf_addr = add_buffer(info, buf, bufsz, bufsz + bss_pad + bsssz, + buf_align, min, max, end); + ehdr->rel_addr = buf_addr; + ehdr->rel_size = bufsz + bss_pad + bsssz; + + /* Walk through and find an address for each SHF_ALLOC section */ + data_addr = buf_addr; + bss_addr = buf_addr + bufsz + bss_pad; + for(shdr = ehdr->e_shdr; shdr != shdr_end; shdr++) { + unsigned long align; + if (!(shdr->sh_flags & SHF_ALLOC)) { + continue; + } + align = shdr->sh_addralign; + if (shdr->sh_type != SHT_NOBITS) { + unsigned long off; + /* Adjust the address */ + data_addr = (data_addr + (align - 1)) & ~(align -1); + + /* Update the section */ + off = data_addr - buf_addr; + memcpy(buf + off, shdr->sh_data, shdr->sh_size); + shdr->sh_addr = data_addr; + shdr->sh_data = buf + off; + + /* Advance to the next address */ + data_addr += shdr->sh_size; + } else { + /* Adjust the address */ + bss_addr = (bss_addr + (align - 1)) & ~(align -1); + + /* Update the section */ + shdr->sh_addr = bss_addr; + + /* Advance to the next address */ + bss_addr += shdr->sh_size; + } + } + /* Compute the relocated value for entry, and load it */ + if (entry_shdr) { + entry += entry_shdr->sh_addr; + ehdr->e_entry = entry; + } + info->entry = (void *)entry; + + /* Now that the load address is known apply relocations */ + for(shdr = ehdr->e_shdr; shdr != shdr_end; shdr++) { + struct mem_shdr *section, *symtab; + const unsigned char *strtab; + size_t rel_size; + const unsigned char *ptr, *rel_end; + if ((shdr->sh_type != SHT_RELA) && (shdr->sh_type != SHT_REL)) { + continue; + } + if ((shdr->sh_info > ehdr->e_shnum) || + (shdr->sh_link > ehdr->e_shnum)) + { + die("Invalid section number\n"); + } + section = &ehdr->e_shdr[shdr->sh_info]; + symtab = &ehdr->e_shdr[shdr->sh_link]; + + if (!(section->sh_flags & SHF_ALLOC)) { + continue; + } + + if (symtab->sh_link > ehdr->e_shnum) { + /* Invalid section number? */ + continue; + } + strtab = ehdr->e_shdr[symtab->sh_link].sh_data; + + rel_size = 0; + if (shdr->sh_type == SHT_REL) { + rel_size = elf_rel_size(ehdr); + } + else if (shdr->sh_type == SHT_RELA) { + rel_size = elf_rela_size(ehdr); + } + else { + die("Cannot find elf rel size\n"); + } + rel_end = shdr->sh_data + shdr->sh_size; + for(ptr = shdr->sh_data; ptr < rel_end; ptr += rel_size) { + struct mem_rela rel; + struct mem_sym sym; + const void *location; + unsigned long address, value, sec_base; + if (shdr->sh_type == SHT_REL) { + rel = elf_rel(ehdr, ptr); + } + else if (shdr->sh_type == SHT_RELA) { + rel = elf_rela(ehdr, ptr); + } + /* the location to change */ + location = section->sh_data + rel.r_offset; + + /* The final address of that location */ + address = section->sh_addr + rel.r_offset; + + /* The relevant symbol */ + sym = elf_sym(ehdr, symtab->sh_data + (rel.r_sym * elf_sym_size(ehdr))); +#if 0 + fprintf(stderr, "sym: %10s info: %02x other: %02x shndx: %lx value: %lx size: %lx\n", + strtab + sym.st_name, + sym.st_info, + sym.st_other, + sym.st_shndx, + sym.st_value, + sym.st_size); + +#endif + if (sym.st_shndx == STN_UNDEF) { + die("Undefined symbol: %s\n", + strtab + sym.st_name); + } + sec_base = 0; + if (sym.st_shndx == SHN_COMMON) { + die("symbol: '%s' in common section\n", + strtab + sym.st_name); + } + else if (sym.st_shndx == SHN_ABS) { + sec_base = 0; + } + else if (sym.st_shndx > ehdr->e_shnum) { + die("Invalid section: %d for symbol %s\n", + sym.st_shndx, + strtab + sym.st_name); + } + else { + sec_base = ehdr->e_shdr[sym.st_shndx].sh_addr; + } +#if 0 + fprintf(stderr, "sym: %s value: %lx addr: %lx\n", + strtab + sym.st_name, value, address); +#endif + value = sym.st_value; + value += sec_base; + value += rel.r_addend; + machine_apply_elf_rel(ehdr, rel.r_type, + (void *)location, address, value); + } + } + result = 0; + out: + return result; +} + +void elf_rel_build_load(struct kexec_info *info, struct mem_ehdr *ehdr, + const char *buf, off_t len, unsigned long min, unsigned long max, + int end) +{ + int result; + + /* Parse the Elf file */ + result = build_elf_rel_info(purgatory, purgatory_size, ehdr); + if (result < 0) { + die("ELF rel parse failed\n"); + } + /* Load the Elf data */ + result = elf_rel_load(ehdr, info, min, max, end); + if (result < 0) { + die("ELF rel load failed\n"); + } +} + +int elf_rel_find_symbol(struct mem_ehdr *ehdr, + const char *name, struct mem_sym *ret_sym) +{ + struct mem_shdr *shdr, *shdr_end; + + if (!ehdr->e_shdr) { + /* "No section header? */ + return -1; + } + /* Walk through the sections and find the symbol table */ + shdr_end = &ehdr->e_shdr[ehdr->e_shnum]; + for (shdr = ehdr->e_shdr; shdr != shdr_end; shdr++) { + const char *strtab; + size_t sym_size; + const unsigned char *ptr, *sym_end; + if (shdr->sh_type != SHT_SYMTAB) { + continue; + } + if (shdr->sh_link > ehdr->e_shnum) { + /* Invalid strtab section number? */ + continue; + } + strtab = ehdr->e_shdr[shdr->sh_link].sh_data; + /* Walk through the symbol table and find the symbol */ + sym_size = elf_sym_size(ehdr); + sym_end = shdr->sh_data + shdr->sh_size; + for(ptr = shdr->sh_data; ptr < sym_end; ptr += sym_size) { + struct mem_sym sym; + sym = elf_sym(ehdr, ptr); + if (ELF32_ST_BIND(sym.st_info) != STB_GLOBAL) { + continue; + } + if (strcmp(strtab + sym.st_name, name) != 0) { + continue; + } + if ((sym.st_shndx == STN_UNDEF) || + (sym.st_shndx > ehdr->e_shnum)) + { + die("Symbol: %s has Bad section index %d\n", + name, sym.st_shndx); + } + *ret_sym = sym; + return 0; + } + } + /* I did not find it :( */ + return -1; + +} + +unsigned long elf_rel_get_addr(struct mem_ehdr *ehdr, const char *name) +{ + struct mem_shdr *shdr; + struct mem_sym sym; + int result; + result = elf_rel_find_symbol(ehdr, name, &sym); + if (result < 0) { + die("Symbol: %s not found cannot retrive it's address\n", + name); + } + shdr = &ehdr->e_shdr[sym.st_shndx]; + return shdr->sh_addr + sym.st_value; +} + +void elf_rel_set_symbol(struct mem_ehdr *ehdr, + const char *name, const void *buf, size_t size) +{ + unsigned char *sym_buf; + struct mem_shdr *shdr; + struct mem_sym sym; + int result; + + result = elf_rel_find_symbol(ehdr, name, &sym); + if (result < 0) { + die("Symbol: %s not found cannot set\n", + name); + } + if (sym.st_size != size) { + die("Symbol: %s has size: %ld not %ld\n", + name, sym.st_size, size); + } + shdr = &ehdr->e_shdr[sym.st_shndx]; + if (shdr->sh_type == SHT_NOBITS) { + die("Symbol: %s is in a bss section cannot set\n", name); + } + sym_buf = (unsigned char *)(shdr->sh_data + sym.st_value); + memcpy(sym_buf, buf, size); +} + +void elf_rel_get_symbol(struct mem_ehdr *ehdr, + const char *name, void *buf, size_t size) +{ + const unsigned char *sym_buf; + struct mem_shdr *shdr; + struct mem_sym sym; + int result; + + result = elf_rel_find_symbol(ehdr, name, &sym); + if (result < 0) { + die("Symbol: %s not found cannot get\n"); + } + if (sym.st_size != size) { + die("Symbol: %s has size: %ld not %ld\n", + name, sym.st_size, size); + } + shdr = &ehdr->e_shdr[sym.st_shndx]; + if (shdr->sh_type == SHT_NOBITS) { + die("Symbol: %s is in a bss section cannot set\n", name); + } + sym_buf = shdr->sh_data + sym.st_value; + memcpy(buf, sym_buf,size); +} diff --git a/kexec/kexec-elf.c b/kexec/kexec-elf.c new file mode 100644 index 00000000..e4d07f42 --- /dev/null +++ b/kexec/kexec-elf.c @@ -0,0 +1,760 @@ +#include <limits.h> +#include <stdint.h> +#include <string.h> +#include <stdio.h> +#include <errno.h> +#include <stdlib.h> +#include "elf.h" +#include <boot/elf_boot.h> +#include "kexec.h" +#include "kexec-elf.h" + +static const int probe_debug = 0; + +uint16_t elf16_to_cpu(const struct mem_ehdr *ehdr, uint16_t value) +{ + if (ehdr->ei_data == ELFDATA2LSB) { + value = le16_to_cpu(value); + } + else if (ehdr->ei_data == ELFDATA2MSB) { + value = be16_to_cpu(value); + } + return value; +} + +uint32_t elf32_to_cpu(const struct mem_ehdr *ehdr, uint32_t value) +{ + if (ehdr->ei_data == ELFDATA2LSB) { + value = le32_to_cpu(value); + } + else if (ehdr->ei_data == ELFDATA2MSB) { + value = be32_to_cpu(value); + } + return value; +} + +uint64_t elf64_to_cpu(const struct mem_ehdr *ehdr, uint64_t value) +{ + if (ehdr->ei_data == ELFDATA2LSB) { + value = le64_to_cpu(value); + } + else if (ehdr->ei_data == ELFDATA2MSB) { + value = be64_to_cpu(value); + } + return value; +} + +uint16_t cpu_to_elf16(const struct mem_ehdr *ehdr, uint16_t value) +{ + if (ehdr->ei_data == ELFDATA2LSB) { + value = cpu_to_le16(value); + } + else if (ehdr->ei_data == ELFDATA2MSB) { + value = cpu_to_be16(value); + } + return value; +} + +uint32_t cpu_to_elf32(const struct mem_ehdr *ehdr, uint32_t value) +{ + if (ehdr->ei_data == ELFDATA2LSB) { + value = cpu_to_le32(value); + } + else if (ehdr->ei_data == ELFDATA2MSB) { + value = cpu_to_be32(value); + } + return value; +} + +uint64_t cpu_to_elf64(const struct mem_ehdr *ehdr, uint64_t value) +{ + if (ehdr->ei_data == ELFDATA2LSB) { + value = cpu_to_le64(value); + } + else if (ehdr->ei_data == ELFDATA2MSB) { + value = cpu_to_be64(value); + } + return value; +} + +#define ELF32_MAX 0xffffffff +#define ELF64_MAX 0xffffffffffffffff +#if ELF64_MAX > ULONG_MAX +#undef ELF64_MAX +#define ELF64_MAX ULONG_MAX +#endif + +unsigned long elf_max_addr(const struct mem_ehdr *ehdr) +{ + unsigned long max_addr = 0; + if (ehdr->ei_class == ELFCLASS32) { + max_addr = ELF32_MAX; + } + else if (ehdr->ei_class == ELFCLASS64) { + max_addr = ELF64_MAX; + } + return max_addr; +} +static int build_mem_elf32_ehdr(const char *buf, off_t len, struct mem_ehdr *ehdr) +{ + Elf32_Ehdr lehdr; + if (len < sizeof(lehdr)) { + /* Buffer is to small to be an elf executable */ + if (probe_debug) { + fprintf(stderr, "Buffer is to small to hold ELF header\n"); + } + return -1; + } + memcpy(&lehdr, buf, sizeof(lehdr)); + if (elf16_to_cpu(ehdr, lehdr.e_ehsize) != sizeof(Elf32_Ehdr)) { + /* Invalid Elf header size */ + if (probe_debug) { + fprintf(stderr, "Bad ELF header size\n"); + } + return -1; + } + if (elf32_to_cpu(ehdr, lehdr.e_entry) > ULONG_MAX) { + /* entry is to large */ + if (probe_debug) { + fprintf(stderr, "ELF e_entry to large\n"); + } + return -1; + } + if (elf32_to_cpu(ehdr, lehdr.e_phoff) > ULONG_MAX) { + /* phoff is to large */ + if (probe_debug) { + fprintf(stderr, "ELF e_phoff to large\n"); + } + return -1; + } + if (elf32_to_cpu(ehdr, lehdr.e_shoff) > ULONG_MAX) { + /* shoff is to large */ + if (probe_debug) { + fprintf(stderr, "ELF e_shoff to large\n"); + } + return -1; + } + ehdr->e_type = elf16_to_cpu(ehdr, lehdr.e_type); + ehdr->e_machine = elf16_to_cpu(ehdr, lehdr.e_machine); + ehdr->e_version = elf32_to_cpu(ehdr, lehdr.e_version); + ehdr->e_entry = elf32_to_cpu(ehdr, lehdr.e_entry); + ehdr->e_phoff = elf32_to_cpu(ehdr, lehdr.e_phoff); + ehdr->e_shoff = elf32_to_cpu(ehdr, lehdr.e_shoff); + ehdr->e_flags = elf32_to_cpu(ehdr, lehdr.e_flags); + ehdr->e_phnum = elf16_to_cpu(ehdr, lehdr.e_phnum); + ehdr->e_shnum = elf16_to_cpu(ehdr, lehdr.e_shnum); + ehdr->e_shstrndx = elf16_to_cpu(ehdr, lehdr.e_shstrndx); + + if ((ehdr->e_phnum > 0) && + (elf16_to_cpu(ehdr, lehdr.e_phentsize) != sizeof(Elf32_Phdr))) + { + /* Invalid program header size */ + if (probe_debug) { + fprintf(stderr, "ELF bad program header size\n"); + } + return -1; + } + if ((ehdr->e_shnum > 0) && + (elf16_to_cpu(ehdr, lehdr.e_shentsize) != sizeof(Elf32_Shdr))) + { + /* Invalid section header size */ + if (probe_debug) { + fprintf(stderr, "ELF bad section header size\n"); + } + return -1; + } + + return 0; +} + +static int build_mem_elf64_ehdr(const char *buf, off_t len, struct mem_ehdr *ehdr) +{ + Elf64_Ehdr lehdr; + if (len < sizeof(lehdr)) { + /* Buffer is to small to be an elf executable */ + if (probe_debug) { + fprintf(stderr, "Buffer is to small to hold ELF header\n"); + } + return -1; + } + memcpy(&lehdr, buf, sizeof(lehdr)); + if (elf16_to_cpu(ehdr, lehdr.e_ehsize) != sizeof(Elf64_Ehdr)) { + /* Invalid Elf header size */ + if (probe_debug) { + fprintf(stderr, "Bad ELF header size\n"); + } + return -1; + } + if (elf32_to_cpu(ehdr, lehdr.e_entry) > ULONG_MAX) { + /* entry is to large */ + if (probe_debug) { + fprintf(stderr, "ELF e_entry to large\n"); + } + return -1; + } + if (elf32_to_cpu(ehdr, lehdr.e_phoff) > ULONG_MAX) { + /* phoff is to large */ + if (probe_debug) { + fprintf(stderr, "ELF e_phoff to large\n"); + } + return -1; + } + if (elf32_to_cpu(ehdr, lehdr.e_shoff) > ULONG_MAX) { + /* shoff is to large */ + if (probe_debug) { + fprintf(stderr, "ELF e_shoff to large\n"); + } + return -1; + } + ehdr->e_type = elf16_to_cpu(ehdr, lehdr.e_type); + ehdr->e_machine = elf16_to_cpu(ehdr, lehdr.e_machine); + ehdr->e_version = elf32_to_cpu(ehdr, lehdr.e_version); + ehdr->e_entry = elf64_to_cpu(ehdr, lehdr.e_entry); + ehdr->e_phoff = elf64_to_cpu(ehdr, lehdr.e_phoff); + ehdr->e_shoff = elf64_to_cpu(ehdr, lehdr.e_shoff); + ehdr->e_flags = elf32_to_cpu(ehdr, lehdr.e_flags); + ehdr->e_phnum = elf16_to_cpu(ehdr, lehdr.e_phnum); + ehdr->e_shnum = elf16_to_cpu(ehdr, lehdr.e_shnum); + ehdr->e_shstrndx = elf16_to_cpu(ehdr, lehdr.e_shstrndx); + + if ((ehdr->e_phnum > 0) && + (elf16_to_cpu(ehdr, lehdr.e_phentsize) != sizeof(Elf64_Phdr))) + { + /* Invalid program header size */ + if (probe_debug) { + fprintf(stderr, "ELF bad program header size\n"); + } + return -1; + } + if ((ehdr->e_shnum > 0) && + (elf16_to_cpu(ehdr, lehdr.e_shentsize) != sizeof(Elf64_Shdr))) + { + /* Invalid section header size */ + if (probe_debug) { + fprintf(stderr, "ELF bad section header size\n"); + } + return -1; + } + + return 0; +} + +static int build_mem_ehdr(const char *buf, off_t len, struct mem_ehdr *ehdr) +{ + unsigned char e_ident[EI_NIDENT]; + int result; + memset(ehdr, 0, sizeof(*ehdr)); + if (len < sizeof(e_ident)) { + /* Buffer is to small to be an elf executable */ + if (probe_debug) { + fprintf(stderr, "Buffer is to small to hold ELF e_ident\n"); + } + return -1; + } + memcpy(e_ident, buf, sizeof(e_ident)); + if (memcmp(e_ident, ELFMAG, SELFMAG) != 0) { + /* No ELF header magic */ + if (probe_debug) { + fprintf(stderr, "NO ELF header magic\n"); + } + return -1; + } + ehdr->ei_class = e_ident[EI_CLASS]; + ehdr->ei_data = e_ident[EI_DATA]; + if ( (ehdr->ei_class != ELFCLASS32) && + (ehdr->ei_class != ELFCLASS64)) + { + /* Not a supported elf class */ + if (probe_debug) { + fprintf(stderr, "Not a supported ELF class\n"); + } + return -1; + } + if ( (ehdr->ei_data != ELFDATA2LSB) && + (ehdr->ei_data != ELFDATA2MSB)) + { + /* Not a supported elf data type */ + if (probe_debug) { + fprintf(stderr, "Not a supported ELF data format\n"); + } + return -1; + } + + result = -1; + if (ehdr->ei_class == ELFCLASS32) { + result = build_mem_elf32_ehdr(buf, len, ehdr); + } + else if (ehdr->ei_class == ELFCLASS64) { + result = build_mem_elf64_ehdr(buf, len, ehdr); + } + if (result < 0) { + return result; + } + if ((e_ident[EI_VERSION] != EV_CURRENT) || + (ehdr->e_version != EV_CURRENT)) + { + if (probe_debug) { + fprintf(stderr, "Unknown ELF version\n"); + } + /* Unknwon elf version */ + return -1; + } + return 0; +} + +static int build_mem_elf32_phdr(const char *buf, off_t len, + struct mem_ehdr *ehdr, int idx) +{ + struct mem_phdr *phdr; + const char *pbuf; + Elf32_Phdr lphdr; + pbuf = buf + ehdr->e_phoff + (idx * sizeof(lphdr)); + phdr = &ehdr->e_phdr[idx]; + memcpy(&lphdr, pbuf, sizeof(lphdr)); + + if ( (elf32_to_cpu(ehdr, lphdr.p_filesz) > ULONG_MAX) || + (elf32_to_cpu(ehdr, lphdr.p_memsz) > ULONG_MAX) || + (elf32_to_cpu(ehdr, lphdr.p_offset) > ULONG_MAX) || + (elf32_to_cpu(ehdr, lphdr.p_paddr) > ULONG_MAX) || + (elf32_to_cpu(ehdr, lphdr.p_vaddr) > ULONG_MAX) || + (elf32_to_cpu(ehdr, lphdr.p_align) > ULONG_MAX)) + { + fprintf(stderr, "Program segment size out of range\n"); + return -1; + } + + phdr->p_type = elf32_to_cpu(ehdr, lphdr.p_type); + phdr->p_paddr = elf32_to_cpu(ehdr, lphdr.p_paddr); + phdr->p_vaddr = elf32_to_cpu(ehdr, lphdr.p_vaddr); + phdr->p_filesz = elf32_to_cpu(ehdr, lphdr.p_filesz); + phdr->p_memsz = elf32_to_cpu(ehdr, lphdr.p_memsz); + phdr->p_offset = elf32_to_cpu(ehdr, lphdr.p_offset); + phdr->p_flags = elf32_to_cpu(ehdr, lphdr.p_flags); + phdr->p_align = elf32_to_cpu(ehdr, lphdr.p_align); + + return 0; +} + +static int build_mem_elf64_phdr(const char *buf, off_t len, + struct mem_ehdr *ehdr, int idx) +{ + struct mem_phdr *phdr; + const char *pbuf; + Elf64_Phdr lphdr; + pbuf = buf + ehdr->e_phoff + (idx * sizeof(lphdr)); + phdr = &ehdr->e_phdr[idx]; + memcpy(&lphdr, pbuf, sizeof(lphdr)); + + if ( (elf64_to_cpu(ehdr, lphdr.p_filesz) > ULONG_MAX) || + (elf64_to_cpu(ehdr, lphdr.p_memsz) > ULONG_MAX) || + (elf64_to_cpu(ehdr, lphdr.p_offset) > ULONG_MAX) || + (elf64_to_cpu(ehdr, lphdr.p_paddr) > ULONG_MAX) || + (elf64_to_cpu(ehdr, lphdr.p_vaddr) > ULONG_MAX) || + (elf64_to_cpu(ehdr, lphdr.p_align) > ULONG_MAX)) + { + fprintf(stderr, "Program segment size out of range\n"); + return -1; + } + + phdr->p_type = elf32_to_cpu(ehdr, lphdr.p_type); + phdr->p_paddr = elf64_to_cpu(ehdr, lphdr.p_paddr); + phdr->p_vaddr = elf64_to_cpu(ehdr, lphdr.p_vaddr); + phdr->p_filesz = elf64_to_cpu(ehdr, lphdr.p_filesz); + phdr->p_memsz = elf64_to_cpu(ehdr, lphdr.p_memsz); + phdr->p_offset = elf64_to_cpu(ehdr, lphdr.p_offset); + phdr->p_flags = elf32_to_cpu(ehdr, lphdr.p_flags); + phdr->p_align = elf64_to_cpu(ehdr, lphdr.p_align); + + return 0; +} + +static int build_mem_phdrs(const char *buf, off_t len, struct mem_ehdr *ehdr) +{ + size_t phdr_size, mem_phdr_size; + int i; + + /* e_phnum is at most 65535 so calculating + * the size of the program header cannot overflow. + */ + /* Is the program header in the file buffer? */ + phdr_size = 0; + if (ehdr->ei_class == ELFCLASS32) { + phdr_size = sizeof(Elf32_Phdr); + } + else if (ehdr->ei_class == ELFCLASS64) { + phdr_size = sizeof(Elf64_Phdr); + } + else { + fprintf(stderr, "Invalid ei_class?\n"); + return -1; + } + phdr_size *= ehdr->e_phnum; + if (ehdr->e_phoff + phdr_size > len) { + /* The program header did not fit in the file buffer */ + if (probe_debug) { + fprintf(stderr, "ELF program segment truncated\n"); + } + return -1; + } + + /* Allocate the e_phdr array */ + mem_phdr_size = sizeof(ehdr->e_phdr[0]) * ehdr->e_phnum; + ehdr->e_phdr = xmalloc(mem_phdr_size); + + for(i = 0; i < ehdr->e_phnum; i++) { + struct mem_phdr *phdr; + int result; + result = -1; + if (ehdr->ei_class == ELFCLASS32) { + result = build_mem_elf32_phdr(buf, len, ehdr, i); + + } + else if (ehdr->ei_class == ELFCLASS64) { + result = build_mem_elf64_phdr(buf, len, ehdr, i); + } + if (result < 0) { + return result; + } + + /* Check the program headers to be certain + * they are safe to use. + */ + phdr = &ehdr->e_phdr[i]; + if ((phdr->p_offset + phdr->p_filesz) > len) { + /* The segment does not fit in the buffer */ + if (probe_debug) { + fprintf(stderr, "ELF segment not in file\n"); + } + return -1; + } + if ((phdr->p_paddr + phdr->p_memsz) < phdr->p_paddr) { + /* The memory address wraps */ + if (probe_debug) { + fprintf(stderr, "ELF address wrap around\n"); + } + return -1; + } + /* Remember where the segment lives in the buffer */ + phdr->p_data = buf + phdr->p_offset; + } + return 0; +} + +static int build_mem_elf32_shdr(const char *buf, off_t len, + struct mem_ehdr *ehdr, int idx) +{ + struct mem_shdr *shdr; + const char *sbuf; + int size_ok; + Elf32_Shdr lshdr; + sbuf = buf + ehdr->e_shoff + (idx * sizeof(lshdr)); + shdr = &ehdr->e_shdr[idx]; + memcpy(&lshdr, sbuf, sizeof(lshdr)); + + if ( (elf32_to_cpu(ehdr, lshdr.sh_flags) > ULONG_MAX) || + (elf32_to_cpu(ehdr, lshdr.sh_addr) > ULONG_MAX) || + (elf32_to_cpu(ehdr, lshdr.sh_offset) > ULONG_MAX) || + (elf32_to_cpu(ehdr, lshdr.sh_size) > ULONG_MAX) || + (elf32_to_cpu(ehdr, lshdr.sh_addralign) > ULONG_MAX) || + (elf32_to_cpu(ehdr, lshdr.sh_entsize) > ULONG_MAX)) + { + fprintf(stderr, "Program section size out of range\n"); + return -1; + } + + shdr->sh_name = elf32_to_cpu(ehdr, lshdr.sh_name); + shdr->sh_type = elf32_to_cpu(ehdr, lshdr.sh_type); + shdr->sh_flags = elf32_to_cpu(ehdr, lshdr.sh_flags); + shdr->sh_addr = elf32_to_cpu(ehdr, lshdr.sh_addr); + shdr->sh_offset = elf32_to_cpu(ehdr, lshdr.sh_offset); + shdr->sh_size = elf32_to_cpu(ehdr, lshdr.sh_size); + shdr->sh_link = elf32_to_cpu(ehdr, lshdr.sh_link); + shdr->sh_info = elf32_to_cpu(ehdr, lshdr.sh_info); + shdr->sh_addralign = elf32_to_cpu(ehdr, lshdr.sh_addralign); + shdr->sh_entsize = elf32_to_cpu(ehdr, lshdr.sh_entsize); + + /* Now verify sh_entsize */ + size_ok = 0; + switch(shdr->sh_type) { + case SHT_SYMTAB: + size_ok = shdr->sh_entsize == sizeof(Elf32_Sym); + break; + case SHT_RELA: + size_ok = shdr->sh_entsize == sizeof(Elf32_Rela); + break; + case SHT_DYNAMIC: + size_ok = shdr->sh_entsize == sizeof(Elf32_Dyn); + break; + case SHT_REL: + size_ok = shdr->sh_entsize == sizeof(Elf32_Rel); + break; + case SHT_NOTE: + case SHT_NULL: + case SHT_PROGBITS: + case SHT_HASH: + case SHT_NOBITS: + default: + /* This is a section whose entsize requirements + * I don't care about. If I don't know about + * the section I can't care about it's entsize + * requirements. + */ + size_ok = 1; + break; + } + if (!size_ok) { + fprintf(stderr, "Bad section header(%x) entsize: %ld\n", + shdr->sh_type, shdr->sh_entsize); + return -1; + } + return 0; +} + +static int build_mem_elf64_shdr(const char *buf, off_t len, + struct mem_ehdr *ehdr, int idx) +{ + struct mem_shdr *shdr; + const char *sbuf; + int size_ok; + Elf64_Shdr lshdr; + sbuf = buf + ehdr->e_shoff + (idx * sizeof(lshdr)); + shdr = &ehdr->e_shdr[idx]; + memcpy(&lshdr, sbuf, sizeof(lshdr)); + + if ( (elf64_to_cpu(ehdr, lshdr.sh_flags) > ULONG_MAX) || + (elf64_to_cpu(ehdr, lshdr.sh_addr) > ULONG_MAX) || + (elf64_to_cpu(ehdr, lshdr.sh_offset) > ULONG_MAX) || + (elf64_to_cpu(ehdr, lshdr.sh_size) > ULONG_MAX) || + (elf64_to_cpu(ehdr, lshdr.sh_addralign) > ULONG_MAX) || + (elf64_to_cpu(ehdr, lshdr.sh_entsize) > ULONG_MAX)) + { + fprintf(stderr, "Program section size out of range\n"); + return -1; + } + + shdr->sh_name = elf32_to_cpu(ehdr, lshdr.sh_name); + shdr->sh_type = elf32_to_cpu(ehdr, lshdr.sh_type); + shdr->sh_flags = elf64_to_cpu(ehdr, lshdr.sh_flags); + shdr->sh_addr = elf64_to_cpu(ehdr, lshdr.sh_addr); + shdr->sh_offset = elf64_to_cpu(ehdr, lshdr.sh_offset); + shdr->sh_size = elf64_to_cpu(ehdr, lshdr.sh_size); + shdr->sh_link = elf32_to_cpu(ehdr, lshdr.sh_link); + shdr->sh_info = elf32_to_cpu(ehdr, lshdr.sh_info); + shdr->sh_addralign = elf64_to_cpu(ehdr, lshdr.sh_addralign); + shdr->sh_entsize = elf64_to_cpu(ehdr, lshdr.sh_entsize); + + /* Now verify sh_entsize */ + size_ok = 0; + switch(shdr->sh_type) { + case SHT_SYMTAB: + size_ok = shdr->sh_entsize == sizeof(Elf64_Sym); + break; + case SHT_RELA: + size_ok = shdr->sh_entsize == sizeof(Elf64_Rela); + break; + case SHT_DYNAMIC: + size_ok = shdr->sh_entsize == sizeof(Elf64_Dyn); + break; + case SHT_REL: + size_ok = shdr->sh_entsize == sizeof(Elf64_Rel); + break; + case SHT_NOTE: + case SHT_NULL: + case SHT_PROGBITS: + case SHT_HASH: + case SHT_NOBITS: + default: + /* This is a section whose entsize requirements + * I don't care about. If I don't know about + * the section I can't care about it's entsize + * requirements. + */ + size_ok = 1; + break; + } + if (!size_ok) { + fprintf(stderr, "Bad section header(%x) entsize: %ld\n", + shdr->sh_type, shdr->sh_entsize); + return -1; + } + return 0; +} + +static int build_mem_shdrs(const char *buf, off_t len, struct mem_ehdr *ehdr) +{ + size_t shdr_size, mem_shdr_size; + int i; + + /* e_shnum is at most 65536 so calculating + * the size of the section header cannot overflow. + */ + /* Is the program header in the file buffer? */ + shdr_size = 0; + if (ehdr->ei_class == ELFCLASS32) { + shdr_size = sizeof(Elf32_Shdr); + } + else if (ehdr->ei_class == ELFCLASS64) { + shdr_size = sizeof(Elf64_Shdr); + } + else { + fprintf(stderr, "Invalid ei_class?\n"); + return -1; + } + shdr_size *= ehdr->e_shnum; + if (ehdr->e_shoff + shdr_size > len) { + /* The section header did not fit in the file buffer */ + if (probe_debug) { + fprintf(stderr, "ELF section header does not fit in file\n"); + } + return -1; + } + + /* Allocate the e_shdr array */ + mem_shdr_size = sizeof(ehdr->e_shdr[0]) * ehdr->e_shnum; + ehdr->e_shdr = xmalloc(mem_shdr_size); + + for(i = 0; i < ehdr->e_shnum; i++) { + struct mem_shdr *shdr; + int result; + result = -1; + if (ehdr->ei_class == ELFCLASS32) { + result = build_mem_elf32_shdr(buf, len, ehdr, i); + } + else if (ehdr->ei_class == ELFCLASS64) { + result = build_mem_elf64_shdr(buf, len, ehdr, i); + } + if (result < 0) { + return result; + } + /* Check the section headers to be certain + * they are safe to use. + */ + shdr = &ehdr->e_shdr[i]; + if ((shdr->sh_type != SHT_NOBITS) && + ((shdr->sh_offset + shdr->sh_size) > len)) + { + /* The section does not fit in the buffer */ + if (probe_debug) { + fprintf(stderr, "ELF section %d not in file\n", + i); + } + return -1; + } + if ((shdr->sh_addr + shdr->sh_size) < shdr->sh_addr) { + /* The memory address wraps */ + if (probe_debug) { + fprintf(stderr, "ELF address wrap around\n"); + } + return -1; + } + /* Remember where the section lives in the buffer */ + shdr->sh_data = buf + shdr->sh_offset; + } + return 0; +} + +static void read_nhdr(const struct mem_ehdr *ehdr, + ElfNN_Nhdr *hdr, const unsigned char *note) +{ + memcpy(hdr, note, sizeof(*hdr)); + hdr->n_namesz = elf32_to_cpu(ehdr, hdr->n_namesz); + hdr->n_descsz = elf32_to_cpu(ehdr, hdr->n_descsz); + hdr->n_type = elf32_to_cpu(ehdr, hdr->n_type); + +} +static int build_mem_notes(const char *buf, off_t len, struct mem_ehdr *ehdr) +{ + const unsigned char *note_start, *note_end, *note; + size_t note_size; + int i; + /* First find the note segment or section */ + note_start = note_end = NULL; + for(i = 0; !note_start && (i < ehdr->e_phnum); i++) { + struct mem_phdr *phdr = &ehdr->e_phdr[i]; + if (phdr->p_type == PT_NOTE) { + note_start = phdr->p_data; + note_end = note_start + phdr->p_filesz; + } + } + for(i = 0; !note_start && (i < ehdr->e_shnum); i++) { + struct mem_shdr *shdr = &ehdr->e_shdr[i]; + if (shdr->sh_type == SHT_NOTE) { + note_start = shdr->sh_data; + note_end = note_start + shdr->sh_size; + } + } + if (!note_start) { + return 0; + } + + /* Walk through and count the notes */ + ehdr->e_notenum = 0; + for(note = note_start; note < note_end; note+= note_size) { + ElfNN_Nhdr hdr; + read_nhdr(ehdr, &hdr, note); + note_size = sizeof(hdr); + note_size += (hdr.n_namesz + 3) & ~3; + note_size += (hdr.n_descsz + 3) & ~3; + ehdr->e_notenum += 1; + } + /* Now walk and normalize the notes */ + ehdr->e_note = xmalloc(sizeof(*ehdr->e_note) * ehdr->e_notenum); + for(i = 0, note = note_start; note < note_end; note+= note_size, i++) { + const unsigned char *name, *desc; + ElfNN_Nhdr hdr; + read_nhdr(ehdr, &hdr, note); + note_size = sizeof(hdr); + name = note + note_size; + note_size += (hdr.n_namesz + 3) & ~3; + desc = note + note_size; + note_size += (hdr.n_descsz + 3) & ~3; + + if ((hdr.n_namesz != 0) && (name[hdr.n_namesz -1] != '\0')) { + die("Note name is not null termiated"); + } + ehdr->e_note[i].n_type = hdr.n_type; + ehdr->e_note[i].n_name = name; + ehdr->e_note[i].n_desc = desc; + ehdr->e_note[i].n_descsz = hdr.n_descsz; + + } + return 0; +} + + +void free_elf_info(struct mem_ehdr *ehdr) +{ + free(ehdr->e_phdr); + free(ehdr->e_shdr); + memset(ehdr, 0, sizeof(*ehdr)); +} + +int build_elf_info(const char *buf, off_t len, struct mem_ehdr *ehdr) +{ + int result; + result = build_mem_ehdr(buf, len, ehdr); + if (result < 0) { + return result; + } + if ((ehdr->e_phoff > 0) && (ehdr->e_phnum > 0)) { + result = build_mem_phdrs(buf, len, ehdr); + if (result < 0) { + free_elf_info(ehdr); + return result; + } + } + if ((ehdr->e_shoff > 0) && (ehdr->e_shnum > 0)) { + result = build_mem_shdrs(buf, len, ehdr); + if (result < 0) { + free_elf_info(ehdr); + return result; + } + } + result = build_mem_notes(buf, len, ehdr); + if (result < 0) { + free_elf_info(ehdr); + return result; + } + return 0; +} + diff --git a/kexec/kexec-elf.h b/kexec/kexec-elf.h new file mode 100644 index 00000000..298d351f --- /dev/null +++ b/kexec/kexec-elf.h @@ -0,0 +1,125 @@ +#ifndef KEXEC_ELF_H +#define KEXEC_ELF_H + +struct kexec_info; + +struct mem_ehdr { + unsigned ei_class; + unsigned ei_data; + unsigned e_type; + unsigned e_machine; + unsigned e_version; + unsigned e_flags; + unsigned e_phnum; + unsigned e_shnum; + unsigned e_shstrndx; + unsigned long e_entry; + unsigned long e_phoff; + unsigned long e_shoff; + unsigned e_notenum; + struct mem_phdr *e_phdr; + struct mem_shdr *e_shdr; + struct mem_note *e_note; + unsigned long rel_addr, rel_size; +}; + +struct mem_phdr { + unsigned long p_paddr; + unsigned long p_vaddr; + unsigned long p_filesz; + unsigned long p_memsz; + unsigned long p_offset; + const char *p_data; + unsigned p_type; + unsigned p_flags; + unsigned p_align; +}; + +struct mem_shdr { + unsigned sh_name; + unsigned sh_type; + unsigned long sh_flags; + unsigned long sh_addr; + unsigned long sh_offset; + unsigned long sh_size; + unsigned sh_link; + unsigned sh_info; + unsigned long sh_addralign; + unsigned long sh_entsize; + const unsigned char *sh_data; +}; + +struct mem_sym { + unsigned long st_name; /* Symbol name (string tbl index) */ + unsigned char st_info; /* No defined meaning, 0 */ + unsigned char st_other; /* Symbol type and binding */ + unsigned long st_shndx; /* Section index */ + unsigned long st_value; /* Symbol value */ + unsigned long st_size; /* Symbol size */ +}; + +struct mem_rela { + unsigned long r_offset; + unsigned long r_sym; + unsigned long r_type; + unsigned long r_addend; +}; + +struct mem_note { + unsigned n_type; + unsigned n_descsz; + const char *n_name; + const void *n_desc; +}; + +/* The definition of an ELF note does not vary depending + * on ELFCLASS. + */ +typedef struct +{ + uint32_t n_namesz; /* Length of the note's name. */ + uint32_t n_descsz; /* Length of the note's descriptor. */ + uint32_t n_type; /* Type of the note. */ +} ElfNN_Nhdr; + + + +extern void free_elf_info(struct mem_ehdr *ehdr); +extern int build_elf_info(const char *buf, off_t len, struct mem_ehdr *ehdr); +extern int build_elf_exec_info(const char *buf, off_t len, struct mem_ehdr *ehdr); +extern int build_elf_rel_info(const char *buf, off_t len, struct mem_ehdr *ehdr); + +extern int elf_exec_load(const struct mem_ehdr *ehdr, struct kexec_info *info); +extern int elf_rel_load(struct mem_ehdr *ehdr, struct kexec_info *info, + unsigned long min, unsigned long max, int end); + +extern void elf_exec_build_load(struct kexec_info *info, struct mem_ehdr *ehdr, + const char *buf, off_t len); +extern void elf_rel_build_load(struct kexec_info *info, struct mem_ehdr *ehdr, + const char *buf, off_t len, unsigned long min, unsigned long max, + int end); + +extern int elf_rel_find_symbol(struct mem_ehdr *ehdr, + const char *name, struct mem_sym *ret_sym); +extern unsigned long elf_rel_get_addr(struct mem_ehdr *ehdr, const char *name); +extern void elf_rel_set_symbol(struct mem_ehdr *ehdr, + const char *name, const void *buf, size_t size); +extern void elf_rel_get_symbol(struct mem_ehdr *ehdr, + const char *name, void *buf, size_t size); + +uint16_t elf16_to_cpu(const struct mem_ehdr *ehdr, uint16_t value); +uint32_t elf32_to_cpu(const struct mem_ehdr *ehdr, uint32_t value); +uint64_t elf64_to_cpu(const struct mem_ehdr *ehdr, uint64_t value); + +uint16_t cpu_to_elf16(const struct mem_ehdr *ehdr, uint16_t value); +uint32_t cpu_to_elf32(const struct mem_ehdr *ehdr, uint32_t value); +uint64_t cpu_to_elf64(const struct mem_ehdr *ehdr, uint64_t value); + +unsigned long elf_max_addr(const struct mem_ehdr *ehdr); + +/* Architecture specific helper functions */ +extern int machine_verify_elf_rel(struct mem_ehdr *ehdr); +extern void machine_apply_elf_rel(struct mem_ehdr *ehdr, unsigned long r_type, + void *location, unsigned long address, unsigned long value); +#endif /* KEXEC_ELF_H */ + diff --git a/kexec/kexec-sha256.h b/kexec/kexec-sha256.h new file mode 100644 index 00000000..e0ebfe42 --- /dev/null +++ b/kexec/kexec-sha256.h @@ -0,0 +1,11 @@ +#ifndef KEXEC_SHA256_H +#define KEXEC_SHA256_H + +struct sha256_region { + const void *start; + unsigned long len; +}; + +#define SHA256_REGIONS 8 + +#endif /* KEXEC_SHA256_H */ diff --git a/kexec/kexec-syscall.h b/kexec/kexec-syscall.h new file mode 100644 index 00000000..7b2670c4 --- /dev/null +++ b/kexec/kexec-syscall.h @@ -0,0 +1,73 @@ +#ifndef KEXEC_SYSCALL_H +#define KEXEC_SYSCALL_H + +#define __LIBRARY__ +#include <syscall.h> +#include <sys/syscall.h> +#include <unistd.h> + +#define LINUX_REBOOT_MAGIC1 0xfee1dead +#define LINUX_REBOOT_MAGIC2 672274793 +#define LINUX_REBOOT_MAGIC2A 85072278 +#define LINUX_REBOOT_MAGIC2B 369367448 + +#define LINUX_REBOOT_CMD_RESTART 0x01234567 +#define LINUX_REBOOT_CMD_HALT 0xCDEF0123 +#define LINUX_REBOOT_CMD_CAD_ON 0x89ABCDEF +#define LINUX_REBOOT_CMD_CAD_OFF 0x00000000 +#define LINUX_REBOOT_CMD_POWER_OFF 0x4321FEDC +#define LINUX_REBOOT_CMD_RESTART2 0xA1B2C3D4 +#define LINUX_REBOOT_CMD_EXEC_KERNEL 0x18273645 +#define LINUX_REBOOT_CMD_KEXEC_OLD 0x81726354 +#define LINUX_REBOOT_CMD_KEXEC_OLD2 0x18263645 +#define LINUX_REBOOT_CMD_KEXEC 0x45584543 + +#ifdef __i386__ +#define __NR_kexec_load 283 +#endif +#ifdef __ia64__ +#define __NR_kexec_load 1268 +#endif +#ifdef __powerpc64__ +#define __NR_kexec_load 268 +#endif +#ifdef __powerpc__ +#define __NR_kexec_load 268 +#endif +#ifdef __x86_64__ +#define __NR_kexec_load 246 +#endif +#ifndef __NR_kexec_load +#error Unknown processor architecture. Needs a kexec_load syscall number. +#endif + +struct kexec_segment; + +static inline long kexec_load(void *entry, unsigned long nr_segments, + struct kexec_segment *segments, unsigned long flags) +{ + return (long) syscall(__NR_kexec_load, entry, nr_segments, segments, flags); +} + +static inline long kexec_reboot(void) +{ + return (long) syscall(__NR_reboot, LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, LINUX_REBOOT_CMD_KEXEC, 0); +} + + +#define KEXEC_ON_CRASH 0x00000001 +#define KEXEC_ARCH_MASK 0xffff0000 + +/* These values match the ELF architecture values. + * Unless there is a good reason that should continue to be the case. + */ +#define KEXEC_ARCH_DEFAULT ( 0 << 16) +#define KEXEC_ARCH_386 ( 3 << 16) +#define KEXEC_ARCH_X86_64 (62 << 16) +#define KEXEC_ARCH_PPC (20 << 16) +#define KEXEC_ARCH_PPC64 (21 << 16) +#define KEXEC_ARCH_IA_64 (50 << 16) + +#define KEXEC_MAX_SEGMENTS 8 + +#endif /* KEXEC_SYSCALL_H */ diff --git a/kexec/kexec.8 b/kexec/kexec.8 new file mode 100644 index 00000000..5dcbd802 --- /dev/null +++ b/kexec/kexec.8 @@ -0,0 +1,45 @@ +.\" Hey, EMACS: -*- nroff -*- +.\" First parameter, NAME, should be all caps +.\" Second parameter, SECTION, should be 1-8, maybe w/ subsection +.\" other parameters are allowed: see man(7), man(1) +.TH KEXEC-TOOLS 8 "October 13, 2004" +.\" Please adjust this date whenever revising the manpage. +.\" +.\" Some roff macros, for reference: +.\" .nh disable hyphenation +.\" .hy enable hyphenation +.\" .ad l left justify +.\" .ad b justify to both left and right margins +.\" .nf disable filling +.\" .fi enable filling +.\" .br insert line break +.\" .sp <n> insert n+1 empty lines +.\" for manpage-specific macros, see man(7) +.SH NAME +kexec-tools \- Tool to load a kernel for warm reboot and initiate a warm reboot +.SH SYNOPSIS +.B kexec-tools +.RI [ options ] " files" ... +.SH DESCRIPTION +.PP +.\" TeX users may be more comfortable with the \fB<whatever>\fP and +.\" \fI<whatever>\fP escape sequences to invode bold face and italics, +.\" respectively. +\fBkexec-tools\fP does not have a man page yet. Please use "kexec -h" for help. +.SH OPTIONS +These programs follow the usual GNU command line syntax, with long +options starting with two dashes (`-'). +A summary of options is included below. +For a complete description, see the Info files. +.TP +.B \-h, \-\-help +Show summary of options. +.TP +.B \-v, \-\-version +Show version of program. +.SH SEE ALSO +.SH AUTHOR +kexec-tools was written by Eric Biederman. +.PP +This manual page was written by Khalid Aziz <khalid_aziz@hp.com>, +for the Debian project (but may be used by others). diff --git a/kexec/kexec.c b/kexec/kexec.c new file mode 100644 index 00000000..3847dbfe --- /dev/null +++ b/kexec/kexec.c @@ -0,0 +1,810 @@ +/* + * kexec: Linux boots Linux + * + * Copyright (C) 2003-2005 Eric Biederman (ebiederm@xmission.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation (version 2 of the License). + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#define _GNU_SOURCE +#include <stdio.h> +#include <stdarg.h> +#include <string.h> +#include <stdlib.h> +#include <errno.h> +#include <limits.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <unistd.h> +#include <fcntl.h> +#include <getopt.h> +#ifdef HAVE_ZLIB_H +#include <zlib.h> +#endif +#include <sha256.h> +#include "kexec.h" +#include "kexec-syscall.h" +#include "kexec-elf.h" +#include "kexec-sha256.h" + +static unsigned long long mem_min = 0; +static unsigned long long mem_max = ULONG_MAX; + +void die(char *fmt, ...) +{ + va_list args; + va_start(args, fmt); + vfprintf(stderr, fmt, args); + va_end(args); + fflush(stdout); + fflush(stderr); + exit(1); +} + + +void *xmalloc(size_t size) +{ + void *buf; + buf = malloc(size); + if (!buf) { + die("Cannot malloc %ld bytes: %s\n", + size + 0UL, strerror(errno)); + } + return buf; +} + +void *xrealloc(void *ptr, size_t size) +{ + void *buf; + buf = realloc(ptr, size); + if (!buf) { + die("Cannot realloc %ld bytes: %s\n", + size + 0UL, strerror(errno)); + } + return buf; +} + + +/* local variables */ +static struct memory_range *memory_range; +static int memory_ranges; + +int valid_memory_range(unsigned long sstart, unsigned long send) +{ + int i; + if (sstart > send) { + return 0; + } + if ((send > mem_max) || (sstart < mem_min)) { + return 0; + } + for (i = 0; i < memory_ranges; i++) { + unsigned long mstart, mend; + /* Only consider memory ranges */ + if (memory_range[i].type != RANGE_RAM) + continue; + mstart = memory_range[i].start; + mend = memory_range[i].end; + /* Check to see if we are fully contained */ + if ((mstart <= sstart) && (mend >= send)) { + return 1; + } + } + return 0; +} + +int valid_memory_segment(struct kexec_segment *segment) +{ + unsigned long sstart, send; + sstart = (unsigned long)segment->mem; + send = sstart + segment->memsz - 1; + + return valid_memory_range(sstart, send); +} + +void print_segments(FILE *f, struct kexec_info *info) +{ + int i; + + fprintf(f, "nr_segments = %d\n", info->nr_segments); + for (i = 0; i < info->nr_segments; i++) { + fprintf(f, "segment[%d].buf = %p\n", i, info->segment[i].buf); + fprintf(f, "segment[%d].bufsz = %zx\n", i, info->segment[i].bufsz); + fprintf(f, "segment[%d].mem = %p\n", i, info->segment[i].mem); + fprintf(f, "segment[%d].memsz = %zx\n", i, info->segment[i].memsz); + } +} + +int sort_segments(struct kexec_info *info) +{ + int i, j; + void *end; + + /* Do a stupid insertion sort... */ + for (i = 0; i < info->nr_segments; i++) { + int tidx; + struct kexec_segment temp; + tidx = i; + for (j = i +1; j < info->nr_segments; j++) { + if (info->segment[j].mem < info->segment[tidx].mem) { + tidx = j; + } + } + if (tidx != i) { + temp = info->segment[tidx]; + info->segment[tidx] = info->segment[i]; + info->segment[i] = temp; + } + } + /* Now see if any of the segments overlap */ + end = 0; + for (i = 0; i < info->nr_segments; i++) { + if (end > info->segment[i].mem) { + fprintf(stderr, "Overlapping memory segments at %p\n", + end); + return -1; + } + end = ((char *)info->segment[i].mem) + info->segment[i].memsz; + } + return 0; +} + +unsigned long locate_hole(struct kexec_info *info, + unsigned long hole_size, unsigned long hole_align, + unsigned long hole_min, unsigned long hole_max, + int hole_end) +{ + int i, j; + struct memory_range *mem_range; + int max_mem_ranges, mem_ranges; + unsigned long hole_base; + + if (hole_end == 0) { + die("Invalid hole end argument of 0 specified to locate_hole"); + } + + /* Set an intial invalid value for the hole base */ + hole_base = ULONG_MAX; + + /* Ensure I have a sane alignment value */ + if (hole_align == 0) { + hole_align = 1; + } + /* Align everything to at least a page size boundary */ + if (hole_align < getpagesize()) { + hole_align = getpagesize(); + } + + /* Compute the free memory ranges */ + max_mem_ranges = memory_ranges + (info->nr_segments -1); + mem_range = malloc(max_mem_ranges *sizeof(struct memory_range)); + mem_ranges = 0; + + /* Perform a merge on the 2 sorted lists of memory ranges */ + for (j = 0, i = 0; i < memory_ranges; i++) { + unsigned long sstart, send; + unsigned long mstart, mend; + mstart = memory_range[i].start; + mend = memory_range[i].end; + if (memory_range[i].type != RANGE_RAM) + continue; + while ((j < info->nr_segments) && (((unsigned long)info->segment[j].mem) <= mend)) { + sstart = (unsigned long)info->segment[j].mem; + send = sstart + info->segment[j].memsz -1; + if (mstart < sstart) { + mem_range[mem_ranges].start = mstart; + mem_range[mem_ranges].end = sstart -1; + mem_range[mem_ranges].type = RANGE_RAM; + mem_ranges++; + } + mstart = send +1; + j++; + } + if (mstart <= mend) { + mem_range[mem_ranges].start = mstart; + mem_range[mem_ranges].end = mend; + mem_range[mem_ranges].type = RANGE_RAM; + mem_ranges++; + } + } + /* Now find the end of the last memory_range I can use */ + for (i = 0; i < mem_ranges; i++) { + unsigned long long start, end, size; + start = mem_range[i].start; + end = mem_range[i].end; + /* First filter the range start and end values + * through the lens of mem_min, mem_max and hole_align. + */ + if (start < mem_min) { + start = mem_min; + } + if (start < hole_min) { + start = hole_min; + } + start = (start + hole_align - 1) & ~(hole_align - 1); + if (end > mem_max) { + end = mem_max; + } + if (end > hole_max) { + end = hole_max; + } + /* Is this still a valid memory range? */ + if ((start >= end) || (start >= mem_max) || (end <= mem_min)) { + continue; + } + /* Is there enough space left so we can use it? */ + size = end - start; + if (size >= hole_size) { + if (hole_end > 0) { + hole_base = start; + break; + } else { + hole_base = (end - hole_size) & ~(hole_align - 1); + } + } + } + if (hole_base == ULONG_MAX) { + fprintf(stderr, "Could not find a free area of memory of %lx bytes...\n", + hole_size); + return ULONG_MAX; + } + if ((hole_base + hole_size) > hole_max) { + fprintf(stderr, "Could not find a free area of memory below: %lx...\n", + hole_max); + return ULONG_MAX; + } + return hole_base; +} + +void add_segment(struct kexec_info *info, + const void *buf, size_t bufsz, + unsigned long base, size_t memsz) +{ + unsigned long last; + size_t size; + int pagesize; + + if (bufsz > memsz) { + bufsz = memsz; + } + /* Forget empty segments */ + if (memsz == 0) { + return; + } + + /* Round memsz up to a multiple of pagesize */ + pagesize = getpagesize(); + memsz = (memsz + (pagesize - 1)) & ~(pagesize - 1); + + /* Verify base is pagesize aligned. + * Finding a way to cope with this problem + * is important but for now error so at least + * we are not surprised by the code doing the wrong + * thing. + */ + if (base & (pagesize -1)) { + die("Base address: %x is not page aligned\n", base); + } + + last = base + memsz -1; + if (!valid_memory_range(base, last)) { + die("Invalid memory segment %p - %p\n", + (void *)base, (void *)last); + } + + size = (info->nr_segments + 1) * sizeof(info->segment[0]); + info->segment = xrealloc(info->segment, size); + info->segment[info->nr_segments].buf = buf; + info->segment[info->nr_segments].bufsz = bufsz; + info->segment[info->nr_segments].mem = (void *)base; + info->segment[info->nr_segments].memsz = memsz; + info->nr_segments++; + if (info->nr_segments > KEXEC_MAX_SEGMENTS) { + fprintf(stderr, + "Warning: kernel segment limit reached. This will likely fail\n"); + } +} + +unsigned long add_buffer(struct kexec_info *info, + const void *buf, unsigned long bufsz, unsigned long memsz, + unsigned long buf_align, unsigned long buf_min, unsigned long buf_max, + int buf_end) +{ + unsigned long base; + int result; + + result = sort_segments(info); + if (result < 0) { + die("sort_segments failed\n"); + } + + base = locate_hole(info, memsz, buf_align, buf_min, buf_max, buf_end); + if (base == ULONG_MAX) { + die("locate_hole failed\n"); + } + + add_segment(info, buf, bufsz, base, memsz); + return base; +} + +char *slurp_file(const char *filename, off_t *r_size) +{ + int fd; + char *buf; + off_t size, progress; + ssize_t result; + struct stat stats; + + + if (!filename) { + *r_size = 0; + return 0; + } + fd = open(filename, O_RDONLY); + if (fd < 0) { + die("Cannot open `%s': %s\n", + filename, strerror(errno)); + } + result = fstat(fd, &stats); + if (result < 0) { + die("Cannot stat: %s: %s\n", + filename, strerror(errno)); + } + size = stats.st_size; + *r_size = size; + buf = xmalloc(size); + progress = 0; + while(progress < size) { + result = read(fd, buf + progress, size - progress); + if (result < 0) { + if ((errno == EINTR) || (errno == EAGAIN)) + continue; + die("read on %s of %ld bytes failed: %s\n", + filename, (size - progress)+ 0UL, strerror(errno)); + } + progress += result; + } + result = close(fd); + if (result < 0) { + die("Close of %s failed: %s\n", + filename, strerror(errno)); + } + return buf; +} + +#if HAVE_ZLIB_H +char *slurp_decompress_file(const char *filename, off_t *r_size) +{ + gzFile fp; + int errnum; + const char *msg; + char *buf; + off_t size, allocated; + ssize_t result; + + if (!filename) { + *r_size = 0; + return 0; + } + fp = gzopen(filename, "rb"); + if (fp == 0) { + msg = gzerror(fp, &errnum); + if (errnum == Z_ERRNO) { + msg = strerror(errno); + } + die("Cannot open `%s': %s\n", filename, msg); + } + size = 0; + allocated = 65536; + buf = xmalloc(allocated); + do { + if (size == allocated) { + allocated <<= 1; + buf = xrealloc(buf, allocated); + } + result = gzread(fp, buf + size, allocated - size); + if (result < 0) { + if ((errno == EINTR) || (errno == EAGAIN)) + continue; + + msg = gzerror(fp, &errnum); + if (errnum == Z_ERRNO) { + msg = strerror(errno); + } + die ("read on %s of %ld bytes failed: %s\n", + filename, (allocated - size) + 0UL, msg); + } + size += result; + } while(result > 0); + result = gzclose(fp); + if (result != Z_OK) { + msg = gzerror(fp, &errnum); + if (errnum == Z_ERRNO) { + msg = strerror(errno); + } + die ("Close of %s failed: %s\n", filename, msg); + } + *r_size = size; + return buf; +} +#else +char *slurp_decompress_file(const char *filename, off_t *r_size) +{ + return slurp_file(filename, r_size); +} +#endif + +static void update_purgatory(struct kexec_info *info) +{ + static const uint8_t null_buf[256]; + sha256_context ctx; + sha256_digest_t digest; + struct sha256_region region[SHA256_REGIONS]; + int i, j; + /* Don't do anything if we are not using purgatory */ + if (!info->rhdr.e_shdr) { + return; + } + arch_update_purgatory(info); + memset(region, 0, sizeof(region)); + sha256_starts(&ctx); + /* Compute a hash of the loaded kernel */ + for(j = i = 0; i < info->nr_segments; i++) { + unsigned long nullsz; + /* Don't include purgatory in the checksum. The stack + * in the bss will definitely change, and the .data section + * will also change when we poke the sha256_digest in there. + * A very clever/careful person could probably improve this. + */ + if (info->segment[i].mem == (void *)info->rhdr.rel_addr) { + continue; + } + sha256_update(&ctx, info->segment[i].buf, info->segment[i].bufsz); + nullsz = info->segment[i].memsz - info->segment[i].bufsz; + while(nullsz) { + unsigned long bytes = nullsz; + if (bytes > sizeof(null_buf)) { + bytes = sizeof(null_buf); + } + sha256_update(&ctx, null_buf, bytes); + nullsz -= bytes; + } + region[j].start = info->segment[i].mem; + region[j].len = info->segment[i].memsz; + j++; + } + sha256_finish(&ctx, digest); + elf_rel_set_symbol(&info->rhdr, "sha256_regions", ®ion, sizeof(region)); + elf_rel_set_symbol(&info->rhdr, "sha256_digest", &digest, sizeof(digest)); +} + +/* + * Load the new kernel + */ +static int my_load(const char *type, int fileind, int argc, char **argv, + unsigned long kexec_flags) +{ + char *kernel; + char *kernel_buf; + off_t kernel_size; + int i = 0; + int result; + struct kexec_info info; + int guess_only = 0; + + memset(&info, 0, sizeof(info)); + info.segment = NULL; + info.nr_segments = 0; + info.entry = NULL; + + result = 0; + if (argc - fileind <= 0) { + fprintf(stderr, "No kernel specified\n"); + usage(); + return -1; + } + kernel = argv[fileind]; + /* slurp in the input kernel */ + kernel_buf = slurp_decompress_file(kernel, &kernel_size); +#if 0 + fprintf(stderr, "kernel: %p kernel_size: %lx\n", + kernel_buf, kernel_size); +#endif + + if (get_memory_ranges(&memory_range, &memory_ranges) < 0) { + fprintf(stderr, "Could not get memory layout\n"); + return -1; + } + /* if a kernel type was specified, try to honor it */ + if (type) { + for (i = 0; i < file_types; i++) { + if (strcmp(type, file_type[i].name) == 0) + break; + } + if (i == file_types) { + fprintf(stderr, "Unsupported kernel type %s\n", type); + return -1; + } else { + /* make sure our file is really of that type */ + if (file_type[i].probe(kernel_buf, kernel_size) < 0) + guess_only = 1; + } + } + if (!type || guess_only) { + for (i = 0; i < file_types; i++) { + if (file_type[i].probe(kernel_buf, kernel_size) >= 0) + break; + } + if (i == file_types) { + fprintf(stderr, "Cannot determine the file type " + "of %s\n", kernel); + return -1; + } else { + if (guess_only) { + fprintf(stderr, "Wrong file type %s, " + "file matches type %s\n", + type, file_type[i].name); + return -1; + } + } + } + if (file_type[i].load(argc, argv, kernel_buf, kernel_size, &info) < 0) { + fprintf(stderr, "Cannot load %s\n", kernel); + return -1; + } + /* If we are not in native mode setup an appropriate trampoline */ + if (arch_compat_trampoline(&info, &kexec_flags) < 0) { + return -1; + } + /* Verify all of the segments load to a valid location in memory */ + for (i = 0; i < info.nr_segments; i++) { + if (!valid_memory_segment(info.segment +i)) { + fprintf(stderr, "Invalid memory segment %p - %p\n", + info.segment[i].mem, + ((char *)info.segment[i].mem) + + info.segment[i].memsz); + return -1; + } + } + /* Sort the segments and verify we don't have overlaps */ + if (sort_segments(&info) < 0) { + return -1; + } + /* if purgatory is loaded update it */ + update_purgatory(&info); +#if 0 + fprintf(stderr, "kexec_load: entry = %p flags = %lx\n", + info.entry, kexec_flags); + print_segments(stderr, &info); +#endif + result = kexec_load( + info.entry, info.nr_segments, info.segment, kexec_flags); + if (result != 0) { + /* The load failed, print some debugging information */ + fprintf(stderr, "kexec_load failed: %s\n", + strerror(errno)); + fprintf(stderr, "entry = %p flags = %lx\n", + info.entry, kexec_flags); + print_segments(stderr, &info); + } + return result; +} + +int k_unload (unsigned long kexec_flags) +{ + int result; + + result = kexec_load(NULL, 0, NULL, kexec_flags); + if (result != 0) { + /* The unload failed, print some debugging information */ + fprintf(stderr, "kexec_load (0 segments) failed: %s\n", + strerror(errno)); + } + return result; +} + +/* + * Start a reboot. + */ +static int my_shutdown(void) +{ + char *args[8]; + int i = 0; + + args[i++] = "shutdown"; + args[i++] = "-r"; + args[i++] = "now"; + args[i++] = NULL; + + execv("/sbin/shutdown", args); + execv("/etc/shutdown", args); + execv("/bin/shutdown", args); + + perror("shutdown"); + return -1; +} + +/* + * Exec the new kernel (reboot) + */ +static int my_exec(void) +{ + int result; + + result = kexec_reboot(); + /* I have failed if I make it here */ + fprintf(stderr, "kexec failed: %s\n", + strerror(errno)); + return -1; +} + +static void version(void) +{ + printf("kexec " VERSION " released " RELEASE_DATE "\n"); +} + +void usage(void) +{ + int i; + + version(); + printf( + "Usage: kexec [OPTION]... [kernel]\n" + "Directly reboot into a new kernel\n" + "\n" + " -h, --help Print this help.\n" + " -v, --version Print the version of kexec.\n" + " -f, --force Force an immediate kexec, don't call shutdown.\n" + " -x, --no-ifdown Don't bring down network interfaces.\n" + " (if used, must be last option specified)\n" + " -l, --load Load the new kernel into the current kernel.\n" + " -p, --load-panic Load the new kernel for use on panic.\n" + " -u, --unload Unload the current kexec target kernel.\n" + " -e, --exec Execute a currently loaded kernel.\n" + " -t, --type=TYPE Specify the new kernel is of this type.\n" + " --mem-min=<addr> Specify the lowest memory addres to load code into.\n" + " --mem-max=<addr> Specify the highest memory addres to load code into.\n" + "\n" + "Supported kernel file types and options: \n" + ); + for (i = 0; i < file_types; i++) { + printf("%s\n", file_type[i].name); + file_type[i].usage(); + } + printf( "Architecture options: \n"); + arch_usage(); + printf("\n"); +} + +int main(int argc, char *argv[]) +{ + int do_load = 1; + int do_exec = 0; + int do_shutdown = 1; + int do_sync = 1; + int do_ifdown = 0; + int do_unload = 0; + unsigned long kexec_flags = 0; + char *type = 0; + char *endptr; + int opt; + int result = 0; + int fileind; + static const struct option options[] = { + KEXEC_OPTIONS + { 0, 0, 0, 0}, + }; + static const char short_options[] = KEXEC_OPT_STR; + + opterr = 0; /* Don't complain about unrecognized options here */ + while ((opt = getopt_long(argc, argv, short_options, options, 0)) != -1) { + switch(opt) { + case OPT_HELP: + usage(); + return 0; + case OPT_VERSION: + version(); + return 0; + case OPT_NOIFDOWN: + do_ifdown = 0; + break; + case OPT_FORCE: + do_load = 1; + do_shutdown = 0; + do_sync = 1; + do_ifdown = 1; + do_exec = 1; + break; + case OPT_LOAD: + do_load = 1; + do_exec = 0; + do_shutdown = 0; + break; + case OPT_UNLOAD: + do_load = 0; + do_shutdown = 0; + do_sync = 0; + do_unload = 1; + break; + case OPT_EXEC: + do_load = 0; + do_shutdown = 0; + do_sync = 1; + do_ifdown = 1; + do_exec = 1; + break; + case OPT_TYPE: + type = optarg; + break; + case OPT_PANIC: + do_load = 1; + do_exec = 0; + do_shutdown = 0; + do_sync = 0; + kexec_flags = KEXEC_ON_CRASH; + break; + case OPT_MEM_MIN: + mem_min = strtoul(optarg, &endptr, 0); + if (*endptr) { + fprintf(stderr, "Bad option value in --mem-min=%s\n", + optarg); + usage(); + return 1; + } + break; + case OPT_MEM_MAX: + mem_max = strtoul(optarg, &endptr, 0); + if (*endptr) { + fprintf(stderr, "Bad option value in --mem-max=%s\n", + optarg); + usage(); + return 1; + } + break; + default: + break; + } + } + + fileind = optind; + /* Reset getopt for the next pass; called in other source modules */ + opterr = 1; + optind = 1; + + result = arch_process_options(argc, argv); + + if (do_unload) { + result = k_unload(kexec_flags); + } + if (do_load && (result == 0)) { + result = my_load(type, fileind, argc, argv, kexec_flags); + } + if ((result == 0) && do_shutdown) { + result = my_shutdown(); + } + if ((result == 0) && do_sync) { + sync(); + } + if ((result == 0) && do_ifdown) { + extern int ifdown(void); + (void)ifdown(); + } + if ((result == 0) && do_exec) { + result = my_exec(); + } + + fflush(stdout); + fflush(stderr); + return result; +} diff --git a/kexec/kexec.h b/kexec/kexec.h new file mode 100644 index 00000000..10a95d6b --- /dev/null +++ b/kexec/kexec.h @@ -0,0 +1,194 @@ +#ifndef KEXEC_H +#define KEXEC_H + +#include <sys/types.h> +#include <stdint.h> +#define USE_BSD +#include <byteswap.h> +#include <endian.h> +#define _GNU_SOURCE + +#include "kexec-elf.h" + +#ifndef BYTE_ORDER +#error BYTE_ORDER not defined +#endif + +#ifndef LITTLE_ENDIAN +#error LITTLE_ENDIAN not defined +#endif + +#ifndef BIG_ENDIAN +#error BIG_ENDIAN not defined +#endif + +#if BYTE_ORDER == LITTLE_ENDIAN +#define cpu_to_le16(val) (val) +#define cpu_to_le32(val) (val) +#define cpu_to_le64(val) (val) +#define cpu_to_be16(val) bswap_16(val) +#define cpu_to_be32(val) bswap_32(val) +#define cpu_to_be64(val) bswap_64(val) +#define le16_to_cpu(val) (val) +#define le32_to_cpu(val) (val) +#define le64_to_cpu(val) (val) +#define be16_to_cpu(val) bswap_16(val) +#define be32_to_cpu(val) bswap_32(val) +#define be64_to_cpu(val) bswap_64(val) +#elif BYTE_ORDER == BIG_ENDIAN +#define cpu_to_le16(val) bswap_16(val) +#define cpu_to_le32(val) bswap_32(val) +#define cpu_to_le64(val) bswap_64(val) +#define cpu_to_be16(val) (val) +#define cpu_to_be32(val) (val) +#define cpu_to_be64(val) (val) +#define le16_to_cpu(val) bswap_16(val) +#define le32_to_cpu(val) bswap_32(val) +#define le64_to_cpu(val) bswap_64(val) +#define be16_to_cpu(val) (val) +#define be32_to_cpu(val) (val) +#define be64_to_cpu(val) (val) +#else +#error unknwon BYTE_ORDER +#endif + + +#if 0 +/* + * This function doesn't actually exist. The idea is that when someone uses the macros + * below with an unsupported size (datatype), the linker will alert us to the problem via + * an unresolved reference error. + */ +extern unsigned long bad_unaligned_access_length (void); + +#define get_unaligned(loc) \ +({ \ + __typeof__(*(loc)) value; \ + size_t size = sizeof(*(loc)); \ + switch(size) { \ + case 1: case 2: case 4: case 8: \ + memcpy(&value, (loc), size); \ + break; \ + default: \ + value = bad_unaligned_access_length(); \ + break; \ + } \ + value; \ +}) + +#define put_unaligned(value, loc) \ +do { \ + size_t size = sizeof(*(loc)); \ + __typeof__(*(loc)) val = value; \ + switch(size) { \ + case 1: case 2: case 4: case 8: \ + memcpy((loc), &val, size); \ + break; \ + default: \ + bad_unaligned_access_length(); \ + break; \ + } \ +} while(0) +#endif + +struct kexec_segment { + const void *buf; + size_t bufsz; + const void *mem; + size_t memsz; +}; + +struct memory_range { + unsigned long long start, end; + unsigned type; +#define RANGE_RAM 0 +#define RANGE_RESERVED 1 +#define RANGE_ACPI 2 +#define RANGE_ACPI_NVS 3 +}; + +struct kexec_info { + struct kexec_segment *segment; + int nr_segments; + void *entry; + struct mem_ehdr rhdr; +}; + +void usage(void); +int get_memory_ranges(struct memory_range **range, int *ranges); +int valid_memory_range(unsigned long sstart, unsigned long send); +int valid_memory_segment(struct kexec_segment *segment); +void print_segments(FILE *file, struct kexec_info *info); +int sort_segments(struct kexec_info *info); +unsigned long locate_hole(struct kexec_info *info, + unsigned long hole_size, unsigned long hole_align, + unsigned long hole_min, unsigned long hole_max, + int hole_end); + +typedef int (probe_t)(const char *kernel_buf, off_t kernel_size); +typedef int (load_t )(int argc, char **argv, + const char *kernel_buf, off_t kernel_size, + struct kexec_info *info); +typedef void (usage_t)(void); +struct file_type { + const char *name; + probe_t *probe; + load_t *load; + usage_t *usage; +}; + +extern struct file_type file_type[]; +extern int file_types; + +#define OPT_HELP 'h' +#define OPT_VERSION 'v' +#define OPT_DEBUG 'd' +#define OPT_FORCE 'f' +#define OPT_NOIFDOWN 'x' +#define OPT_EXEC 'e' +#define OPT_LOAD 'l' +#define OPT_UNLOAD 'u' +#define OPT_TYPE 't' +#define OPT_PANIC 'p' +#define OPT_MEM_MIN 256 +#define OPT_MEM_MAX 257 +#define OPT_MAX 258 +#define KEXEC_OPTIONS \ + { "help", 0, 0, OPT_HELP }, \ + { "version", 0, 0, OPT_VERSION }, \ + { "force", 0, 0, OPT_FORCE }, \ + { "no-ifdown", 0, 0, OPT_NOIFDOWN }, \ + { "load", 0, 0, OPT_LOAD }, \ + { "unload", 0, 0, OPT_UNLOAD }, \ + { "exec", 0, 0, OPT_EXEC }, \ + { "type", 1, 0, OPT_TYPE }, \ + { "load-panic", 0, 0, OPT_PANIC }, \ + { "mem-min", 1, 0, OPT_MEM_MIN }, \ + { "mem-max", 1, 0, OPT_MEM_MAX }, \ + +#define KEXEC_OPT_STR "hvdfxluet:p" + +extern void die(char *fmt, ...); +extern void *xmalloc(size_t size); +extern void *xrealloc(void *ptr, size_t size); +extern char *slurp_file(const char *filename, off_t *r_size); +extern char *slurp_decompress_file(const char *filename, off_t *r_size); +extern void add_segment(struct kexec_info *info, + const void *buf, size_t bufsz, unsigned long base, size_t memsz); +extern unsigned long add_buffer(struct kexec_info *info, + const void *buf, unsigned long bufsz, unsigned long memsz, + unsigned long buf_align, unsigned long buf_min, unsigned long buf_max, + int buf_end); + +extern unsigned char purgatory[]; +extern size_t purgatory_size; + +#define BOOTLOADER "kexec" +#define BOOTLOADER_VERSION VERSION + +void arch_usage(void); +int arch_process_options(int argc, char **argv); +int arch_compat_trampoline(struct kexec_info *info, unsigned long *flags); +void arch_update_purgatory(struct kexec_info *info); + +#endif /* KEXEC_H */ diff --git a/kexec_test/Makefile b/kexec_test/Makefile new file mode 100644 index 00000000..3e932d55 --- /dev/null +++ b/kexec_test/Makefile @@ -0,0 +1,30 @@ +# +# kexec_test Debugging payload to be certain the infrastructure works +# +RELOC:=0x10000 +KEXEC_TEST_S_SRCS:= kexec_test/kexec_test16.S kexec_test/kexec_test.S +KEXEC_TEST_S_TEMPS:=$(patsubst %.S, $(OBJDIR)/%.s, $(KEXEC_TEST_S_SRCS)) +KEXEC_TEST_S_OBJS:=$(patsubst $(OBJDIR)/%.s, $(OBJDIR)/%.o, $(KEXEC_TEST_S_TEMPS)) +KEXEC_TEST_S_DEPS:=$(patsubst %.S, $(OBJDIR)/%.d, $(KEXEC_TEST_S_SRCS)) +KEXEC_TEST_SRCS:= $(KEXEC_TEST_S_SRCS) +KEXEC_TEST_OBJS:= $(KEXEC_TEST_S_OBJS) +KEXEC_TEST_DEPS:= $(KEXEC_TEST_S_DEPS) +KEXEC_TEST:=$(PKGLIBDIR)/kexec_test + +include $(KEXEC_TEST_DEPS) + +$(KEXEC_TEST_S_DEPS): $(OBJDIR)/%.d: %.S + mkdir -p $(@D) + $(CC) -m32 $(CFLAGS) -M $< | sed -e 's|$(patsubst %.d,%.o,$(@F))|$(patsubst %.d,%.o,$(@))|' > $@ + +$(KEXEC_TEST_S_TEMPS): $(OBJDIR)/%.s: %.S + mkdir -p $(@D) + $(CPP) $(CPPFLAGS) -DRELOC=$(RELOC) $< > $@ + +$(KEXEC_TEST_S_OBJS): $(OBJDIR)/%.o: $(OBJDIR)/%.s + mkdir -p $(@D) + $(AS) --32 -o $@ $< + +$(KEXEC_TEST): $(KEXEC_TEST_OBJS) + mkdir -p $(@D) + $(LD) -m elf_i386 -e _start -Ttext $(RELOC) $(KEXEC_TEST_OBJS) -o $@ diff --git a/kexec_test/kexec_test.S b/kexec_test/kexec_test.S new file mode 100644 index 00000000..5106c5cd --- /dev/null +++ b/kexec_test/kexec_test.S @@ -0,0 +1,475 @@ +/* + * kexec: Linux boots Linux + * + * Copyright (C) 2003,2004 Eric Biederman (ebiederm@xmission.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation (version 2 of the License). + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + + .equ PROT_CODE_SEG, pmcs - gdt + .equ REAL_CODE_SEG, rmcs - gdt + .equ PROT_DATA_SEG, pmds - gdt + .equ REAL_DATA_SEG, rmds - gdt + .equ CR0_PE, 1 + /* Gas thinks the .equs for these are non-absolute so use a define */ +#define PROT_CODE_SEG 0x08 +#define REAL_CODE_SEG 0x18 +#undef i386 + + .text + .arch i386 + .globl _start +_start: + .code32 + # Disable interrupts + cli + + # Save the initial registers + movl %eax, orig_eax + movl %ebx, orig_ebx + movl %ecx, orig_ecx + movl %edx, orig_edx + movl %esi, orig_esi + movl %edi, orig_edi + movl %esp, orig_esp + movl %ebp, orig_ebp + + # Setup a stack + movl $stack_end, %esp + + # Display a message to say everything is working so far + pushl $s_hello + call print_string + addl $4, %esp + + # Save the idt and gdt + sidt orig_idtp + sgdt orig_gdtp + + # Display the initial register contents + call print_orig_regs + + pushl $s_switching_descriptors + call print_string + addl $4, %esp + + # Load descriptor pointers + lgdt gdtp + lidt idtp + # Reload the data segments + movl $PROT_DATA_SEG, %eax + movl %eax, %ds + movl %eax, %es + movl %eax, %ss + movl %eax, %fs + movl %eax, %gs + + # Reload %cs + ljmp $PROT_CODE_SEG, $_start.1 +_start.1: + + pushl $s_descriptors_changed + call print_string + addl $4, %esp + + call setup_legacy_pic + pushl $s_legacy_pic_setup + call print_string + addl $4, %esp + + call prot_to_real + .code16 + + callw test16 + + /* Return to 32bit mode */ + data32 call real_to_prot + .code32 + pushl $s_in_protected_mode + call print_string + addl $4, %esp + + pushl $s_halting + call print_string + addl $4, %esp + jmp halt + + + /* Go from protected to real mode */ +prot_to_real: + .code32 + /* Load the 16bit idt */ + lidt idtp_real + + popl %eax + subl $RELOC, %eax /* Adjust return address */ + pushl %eax + subl $RELOC, %esp /* Adjust stack pointer */ + ljmp $REAL_CODE_SEG, $1f - RELOC +1: + .code16 + /* Reload the segment registers to force a 16bit limit */ + movw $REAL_DATA_SEG, %ax + movw %ax, %ds + movw %ax, %es + movw %ax, %ss + movw %ax, %fs + movw %ax, %gs + + /* Clear the PE bit of CR0 */ + movl %cr0, %eax + andl $0!CR0_PE, %eax + movl %eax, %cr0 + + /* make intersegment jmp to flush the processor pipeline + * and reload %cs:%eip (to clear upper 16 bits of %eip). + */ + data32 ljmp $(RELOC)>>4,$2f- RELOC +2: + /* we are in real mode now + * set up the real mode segment registers + */ + movw %cs,%ax + movw %ax,%ds + movw %ax,%es + movw %ax,%ss + movw %ax,%fs + movw %ax,%gs + data32 ret + +real_to_prot: + .code16 + pushl %ebx + + /* Compute the address of gdtp */ + movw %cs, %ax + shlw $4, %ax + movl $gdtp, %ebx + subw %ax, %bx + + data32 lgdt %cs:(%bx) + movl %cr0, %eax + orl $CR0_PE, %eax + movl %eax, %cr0 + + /* flush prefetch queue and reload %cs:%eip */ + data32 ljmp $PROT_CODE_SEG, $1f +1: + .code32 + /* reload other segment registers */ + movl $PROT_DATA_SEG, %eax + movl %eax, %ds + movl %eax, %es + movl %eax, %ss + movl %eax, %fs + movl %eax, %gs + + popl %ebx /* Restore %ebx */ + + addl $RELOC, %esp /* Fix up stack pointer */ + + popl %eax /* Fix up return address */ + addl $RELOC, %eax + pushl %eax + + lidt idtp /* Load a dummy idt */ + ret + + +halt: + .code32 + hlt + jmp halt + +print_orig_regs: + .code32 + # Display the initial register contents + pushl $s_eax + call print_string + pushl orig_eax + call print_hex + pushl $space + call print_string + addl $12, %esp + + pushl $s_ebx + call print_string + pushl orig_ebx + call print_hex + pushl $space + call print_string + addl $12, %esp + + + pushl $s_ecx + call print_string + pushl orig_ecx + call print_hex + pushl $space + call print_string + addl $12, %esp + + + pushl $s_edx + call print_string + pushl orig_edx + call print_hex + pushl $crlf + call print_string + addl $12, %esp + + + pushl $s_esi + call print_string + pushl orig_esi + call print_hex + pushl $space + call print_string + addl $12, %esp + + pushl $s_edi + call print_string + pushl orig_edi + call print_hex + pushl $space + call print_string + addl $12, %esp + + + pushl $s_esp + call print_string + pushl orig_esp + call print_hex + pushl $space + call print_string + addl $12, %esp + + + pushl $s_ebp + call print_string + pushl orig_ebp + call print_hex + pushl $crlf + call print_string + addl $12, %esp + + # display the interrupt descritor table pointer + pushl $s_idtp + call print_string + movzwl orig_idtp, %eax + pushl %eax + call print_hex + pushl $space + call print_string + pushl orig_idt_base + call print_hex + pushl $crlf + call print_string + addl $20, %esp + + # display the global descritor table pointer + pushl $s_gdtp + call print_string + movzwl orig_gdtp, %eax + pushl %eax + call print_hex + pushl $space + call print_string + pushl orig_gdt_base + call print_hex + pushl $crlf + call print_string + addl $20, %esp + + ret + + +print_string: + .code32 + pushl %ebp + movl %esp, %ebp + pushl %esi + movl 8(%ebp), %esi + xorl %eax, %eax +print_string.1: + lodsb %ds:(%esi), %al + testb $0xff, %al + jz print_string.2 + call print_char + jmp print_string.1 +print_string.2: + popl %esi + popl %ebp + ret + + +print_hex: + .code32 + pushl %ebp + movl %esp, %ebp + movb $32, %cl +print_hex.1: + movl 8(%ebp), %eax + subb $4, %cl + shrl %cl, %eax + andb $0x0f, %al + cmpb $9, %al + ja print_hex.2 + addb $'0', %al + jmp print_hex.3 +print_hex.2: + addb $'A' - 10, %al +print_hex.3: + pushl %ecx + call print_char + popl %ecx + testb %cl, %cl + jnz print_hex.1 + + popl %ebp + ret + +print_char: + .code32 + # The character to print is in al + call serial_print_char + retl + + +#define TTYS0_BASE 0x3f8 +#define TTYS0_RBR (TTYS0_BASE + 0x00) +#define TTYS0_TBR (TTYS0_BASE + 0x00) +#define TTYS0_LSR (TTYS0_BASE + 0x05) +serial_print_char: + .code32 + # The character to print is in al + pushl %eax + + # Wait until the serial port is ready to receive characters +serial_print_char.1: + movl $TTYS0_LSR, %edx + inb %dx, %al + testb $0x20, %al + jz serial_print_char.1 + + # Output the character + movl $TTYS0_TBR, %edx + movb 0(%esp), %al + outb %al, %dx + + # Wait until the serial port has transmitted the character +serial_print_char.2: + movl $TTYS0_LSR, %edx + inb %dx, %al + testb $0x40, %al + jz serial_print_char.2 + + # Restore %eax + popl %eax + # Return to caller + ret + + .code32 + +idtp_real: + .word 0x400 # idt limit = 256 + .word 0, 0 +idtp: + .word 0 # idt limit = 0 + .word 0, 0 # idt base = 0L + +gdt: +gdtp: + .word gdt_end - gdt - 1 # gdt limit + .long gdt # gdt base + .word 0 # dummy + +pmcs: + # the 32 bit protected mode code segment + .word 0xffff,0 + .byte 0,0x9f,0xcf,0 + +pmds: + # the 32 bit protected mode data segment + .word 0xffff,0 + .byte 0,0x93,0xcf,0 + +rmcs: + # the 16 bit real mode code segment + .word 0xffff,(RELOC&0xffff) + .byte (RELOC>>16),0x9b,0x00,(RELOC>>24) + +rmds: + # the 16 bit real mode data segment + .word 0xffff,(RELOC&0xffff) + .byte (RELOC>>16),0x93,0x00,(RELOC>>24) +gdt_end: + + +s_hello: + .ascii "kexec_test " + .ascii VERSION + .asciz " starting...\r\n" +s_switching_descriptors: + .asciz "Switching descriptors.\r\n" +s_descriptors_changed: + .asciz "Descriptors changed.\r\n" +s_legacy_pic_setup: + .asciz "Legacy pic setup.\r\n" +s_in_protected_mode: + .asciz "In protected mode.\r\n" +s_halting: + .asciz "Halting.\r\n" + + +space: .asciz " " +crlf: .asciz "\r\n" +s_eax: .asciz "eax: " +s_ebx: .asciz "ebx: " +s_ecx: .asciz "ecx: " +s_edx: .asciz "edx: " +s_esi: .asciz "esi: " +s_edi: .asciz "edi: " +s_esp: .asciz "esp: " +s_ebp: .asciz "ebp: " + + +s_idtp: .asciz "idt: " +s_gdtp: .asciz "gdt: " + +#include "x86-setup-legacy-pic.S" + + .bss + .balign 4096 +stack: + .skip 4096 +stack_end: + + .bss + .balign 4 +orig_eax: .long 0 +orig_ebx: .long 0 +orig_ecx: .long 0 +orig_edx: .long 0 +orig_esi: .long 0 +orig_edi: .long 0 +orig_esp: .long 0 +orig_ebp: .long 0 + + .balign 4 +orig_idtp: .short 0 +orig_idt_base: .long 0 +orig_gdtp: .short 0 +orig_gdt_base: .long 0 + diff --git a/kexec_test/kexec_test16.S b/kexec_test/kexec_test16.S new file mode 100644 index 00000000..4d379159 --- /dev/null +++ b/kexec_test/kexec_test16.S @@ -0,0 +1,1004 @@ +/* + * kexec: Linux boots Linux + * + * Copyright (C) 2003,2004 Eric Biederman (ebiederm@xmission.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation (version 2 of the License). + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + + .text + .code16 + + .globl test16 + .balign 16 + .globl _start16 +_start16: +test16: + pushw $s_in_real_mode - _start16 + call print_string16 + addw $2, %sp + +#if 0 + /* Disable interrupts */ + movb $0xff, %al + outb %al, $0x21 + outb %al, $0xa1 +#endif + /* Enable interrupts, BIOS calls may fail if we don't */ + sti + pushw $s_interrupts_enabled - _start16 + call print_string16 + addw $2, %sp + + /* Get the base memory size, via a bios call */ + /* This is to test BIOS calls more than to achieve anything practical */ + xorw %ax, %ax + int $0x12 + pushw %ax + pushw $s_base_memory_size - _start16 + call print_string16 + addw $2, %sp + call print_hex16 + addw $2, %sp + pushw $s_crlf - _start16 + call print_string16 + addw $2, %sp + + + /* Some things do not like a20 being enabled so disable it */ + call disable_a20 + + /* Here we test various BIOS calls to determine how much of the system is working */ + call get_meme820 + call print_meme820 + call print_meme801 + call print_mem88 + call disable_apm + call print_equipment_list + call print_sysdesc + call print_video + call print_cursor + call print_video_mode + call set_auto_repeat_rate + call print_dasd_type + call print_edd + + /* Enable a20 */ + call enable_a20 + pushw $s_a20_enabled - _start16 + call print_string16 + addw $2, %sp + + /* Disable interrupts */ + cli + pushw $s_interrupts_disabled - _start16 + call print_string16 + addw $2, %sp + + retw + +# +# Enable A20. This is at the very best an annoying procedure. +# A20 code ported from SYSLINUX 1.52-1.63 by H. Peter Anvin. +# + +A20_TEST_LOOPS = 32 # Iterations per wait +A20_ENABLE_LOOPS = 255 # Total loops to try +A20_DISABLE_LOOPS = 255 # Total loops to try + +enable_a20: + .code16 + movb $A20_ENABLE_LOOPS, a20_tries - _start16 +a20_try_loop: + + # First, see if we are on a system with no A20 gate. +a20_none: + call a20_test + jnz a20_done + + # Next, try the BIOS (INT 0x15, AX=0x2401) +a20_bios: + movw $0x2401, %ax + pushfl # Be paranoid about flags + int $0x15 + popfl + + call a20_test + jnz a20_done + + # Try enabling A20 through the keyboard controller +a20_kbc: + call empty_8042 + + call a20_test # Just in case the BIOS worked + jnz a20_done # but had a delayed reaction. + + movb $0xD1, %al # command write + outb %al, $0x64 + call empty_8042 + + movb $0xDF, %al # A20 on + outb %al, $0x60 + call empty_8042 + + # Wait until a20 really *is* enabled; it can take a fair amount of + # time on certain systems; Toshiba Tecras are known to have this + # problem. +a20_kbc_wait: + xorw %cx, %cx +a20_kbc_wait_loop: + call a20_test + jnz a20_done + loop a20_kbc_wait_loop + + # Final attempt: use "configuration port A" +a20_fast: + inb $0x92, %al # Configuration Port A + orb $0x02, %al # "fast A20" version + andb $0xFE, %al # dont accidentally reset + outb %al, $0x92 + + # Wait for configuration port A to take effect +a20_fast_wait: + xorw %cx, %cx +a20_fast_wait_loop: + call a20_test + jnz a20_done + loop a20_fast_wait_loop + + # A20 is still not responding. Try frobbing it again. + # + decb (a20_tries - _start16) + jnz a20_try_loop + jmp a20_die + +a20_die: + pushw $s_a20_err_msg - _start16 + call print_string16 + jmp halt16 + + # If we get here, all is good +a20_done: + ret + + + +# This routine tests whether or not A20 is enabled. If so, it +# exits with zf = 0. +# +# The memory address used, 0x200, is the int $0x80 vector, which +# should be safe. + +A20_TEST_ADDR = 4*0x80 + +a20_test: + .code16 + pushw %cx + pushw %ax + xorw %cx, %cx + movw %cx, %fs # Low memory + decw %cx + movw %cx, %gs # High memory area + movw $A20_TEST_LOOPS, %cx + movw %fs:(A20_TEST_ADDR), %ax + pushw %ax +a20_test_wait: + incw %ax + movw %ax, %fs:(A20_TEST_ADDR) + call delay # Serialize and make delay constant + cmpw %gs:(A20_TEST_ADDR+0x10), %ax + loope a20_test_wait + + popw %fs:(A20_TEST_ADDR) + popw %ax + popw %cx + + ret + +# +# Disable A20 +# + +disable_a20: + .code16 + movb $A20_DISABLE_LOOPS, a20_disable_tries - _start16 +a20_disable_loop: + + # First see if gate A20 is already disabled + call a20_test + jz a20_disabled + + + # Next, try the BIOS (INT 0x15, AX= 0x2400) + movw $0x2400, %ax + pushfl # Be paranoid about flags + int $0x15 + popfl + + call a20_test + jz a20_disabled + + # Try disabling A20 through the keyboard controller + call empty_8042 + + call a20_test # Just in case the BIOS worked + jz a20_disabled # but had a delayed reaction. + + movb $0xD1, %al # command write + outb %al, $0x64 + call empty_8042 + + movb $0xDD, %al # A20 off + outb %al, $0x60 + call empty_8042 + + # Wait until a20 really *is* disabled + xorw %cx, %cx +a20_kbc_disable_loop: + call a20_test + jz a20_disabled + loop a20_kbc_disable_loop + + # Final attempt: use "configuration port A" + inb $0x92, %al # Configuratin Port A + andb $0xFD, %al # "fast A20" version + andb $0xFE, %al # dont accidentally reset + outb %al, $0x92 + + # Wait for configuration port A to take affect + xorw %cx, %cx +a20_fast_disable_loop: + call a20_test + jz a20_disabled + loop a20_fast_disable_loop + + # A20 is still not responding. Try it again + decb (a20_disable_tries - _start16) + jnz a20_disable_loop + + pushw $s_a20_cant_disable - _start16 + call print_string16 + addw $2, %sp + retw + + # If we get here, all is good +a20_disabled: + pushw $s_a20_disabled - _start16 + call print_string16 + addw $2, %sp + retw + + +# This routine checks that the keyboard command queue is empty +# (after emptying the output buffers) +# +# Some machines have delusions that the keyboard buffer is always full +# with no keyboard attached... +# +# If there is no keyboard controller, we will usually get 0xff +# to all the reads. With each IO taking a microsecond and +# a timeout of 100,000 iterations, this can take about half a +# second ("delay" == outb to port 0x80). That should be ok, +# and should also be plenty of time for a real keyboard controller +# to empty. +# + +empty_8042: + .code16 + pushl %ecx + movl $100000, %ecx + +empty_8042_loop: + decl %ecx + jz empty_8042_end_loop + + call delay + + inb $0x64, %al # 8042 status port + testb $1, %al # output buffer? + jz no_output + + call delay + inb $0x60, %al # read it + jmp empty_8042_loop + +no_output: + testb $2, %al # is input buffer full? + jnz empty_8042_loop # yes - loop +empty_8042_end_loop: + popl %ecx + ret + + + + +# method E820H: +# the memory map from hell. e820h returns memory classified into +# a whole bunch of different types, and allows memory holes and +# everything. We scan through this memory map and build a list +# of the first 32 memory areas, which we return at [E820MAP]. +# This is documented at http://www.teleport.com/~acpi/acpihtml/topic245.htm + +#define SMAP 0x534d4150 +#define E820_MAX 32 +#define E820_SIZE 20 + +get_meme820: + .code16 + pushw %bp + movw %sp, %bp + pushw %ds + pushw %es + pushl %esi + pushl %edi + pushl %ebx + + xorl %eax, %eax + movb %al, e820nr - _start16 + xorl %ebx, %ebx # continuation counter + movw $e820_map - _start16, %di # point into the whitelist + # so we can have the bios + # directly write into it. + +jmpe820: + movl $0x0000e820, %eax # e820, upper word zeroed + movl $SMAP, %edx # ascii SMAP + movl $E820_SIZE, %ecx # size of the e820rec + pushw %ds # data record. + popw %es + int $0x15 # make the call + jc bail820 # fall to e801 if it fails + + cmpl $SMAP, %eax # check the return is SMAP + jne bail820 # fall to e801 if it fails + +# cmpl $1, 16(%di) # is this usable memory? +# jne again820 + + # If this is usable memory, we save it by simply advancing %di by + # sizeof(e820rec). + # +good820: + movb e820nr - _start16, %al # up to 32 entries + cmpb $E820_MAX, %al + jnl bail820 + + incb e820nr - _start16 + movw %di, %ax + addw $20, %ax + movw %ax, %di +again820: + cmpl $0, %ebx # check to see if + jne jmpe820 # %ebx is set to EOF +bail820: + popl %ebx + popl %edi + popl %esi + popw %es + popw %ds + popw %bp + retw + + +print_meme820: + .code16 + pushw %si + xorw %cx, %cx + movb (e820nr - _start16), %cl + movw $e820_map - _start16, %si + + pushw $s_meme820 - _start16 + call print_string16 + addw $2, %sp + +print_meme820.1: + pushw %cx + + pushw 8(%si) + pushw 10(%si) + pushw 12(%si) + pushw 14(%si) + call print_hex16 + addw $2, %sp + call print_hex16 + addw $2, %sp + call print_hex16 + addw $2, %sp + call print_hex16 + addw $2, %sp + + pushw $s_at - _start16 + call print_string16 + addw $2, %sp + + pushw 0(%si) + pushw 2(%si) + pushw 4(%si) + pushw 6(%si) + call print_hex16 + addw $2, %sp + call print_hex16 + addw $2, %sp + call print_hex16 + addw $2, %sp + call print_hex16 + addw $2, %sp + + pushw $s_type - _start16 + call print_string16 + addw $2, %sp + + pushw 16(%si) + pushw 18(%si) + call print_hex16 + addw $2, %sp + call print_hex16 + addw $2, %sp + + pushw $s_crlf - _start16 + call print_string16 + addw $2, %sp + + popw %cx + addw $E820_SIZE, %si + subw $1, %cx + jnz print_meme820.1 + + popw %si + retw + + + +print_meme801: + .code16 + pushw %bp + movw %sp, %bp + pushw %bx + pushl $0 + +# method E801H: +# memory size is in 1k chunksizes + + stc # fix to work around buggy + xorw %cx,%cx # BIOSes which dont clear/set + xorw %dx,%dx # carry on pass/error of + # e801h memory size call + # or merely pass cx,dx though + # without changing them. + movw $0xe801, %ax + int $0x15 + jc print_meme801.2 + + cmpw $0x0, %cx # Kludge to handle BIOSes + jne e801usecxdx # which report their extended + cmpw $0x0, %dx # memory in AX/BX rather than + jne e801usecxdx # CX/DX. The spec I have read + movw %ax, %cx # seems to indicate AX/BX + movw %bx, %dx # are more reasonable anyway... + +e801usecxdx: + andl $0xffff, %edx # clear sign extend + shll $6, %edx # and go from 64k to 1k chunks + movl %edx, -6(%bp) # store extended memory size + andl $0xffff, %ecx # clear sign extend + addl %ecx, -6(%bp) # and add lower memory into + + pushw $s_meme801 - _start16 + call print_string16 + addw $2, %sp + + pushw -6(%bp) + pushw -4(%bp) + call print_hex16 + addw $2, %sp + call print_hex16 + addw $2, %sp + + pushw $s_crlf - _start16 + call print_string16 + addw $2, %sp + +print_meme801.2: + addw $4, %sp + popw %bx + popw %bp + retw + +print_mem88: + .code16 +# Ye Olde Traditional Methode. Returns the memory size (up to 16mb or +# 64mb, depending on the bios) in ax. + movb $0x88, %ah + int $0x15 + + pushw %ax + pushw $s_mem88 - _start16 + call print_string16 + addw $2, %sp + call print_hex16 + addw $2, %sp + pushw $s_crlf - _start16 + call print_string16 + addw $2, %sp + + retw + +print_dasd_type: + .code16 + pushw $s_dasd_type - _start16 + call print_string16 + addw $2, %sp + + movw $0x1500, %ax + movb $0x81, %dl + int $0x13 + jc print_dasd_type.1 + + pushw %dx + pushw %cx + pushw $s_space - _start16 + pushw %ax + + call print_hex16 + addw $2, %sp + call print_string16 + addw $2, %sp + call print_hex16 + addw $2, %sp + call print_hex16 + addw $2, %sp + jmp print_dasd_type.2 +print_dasd_type.1: + pushw $s_none - _start16 + call print_string16 + addw $2, %sp + +print_dasd_type.2: + pushw $s_crlf - _start16 + call print_string16 + addw $2, %sp + + retw + +print_equipment_list: + .code16 + pushw $s_equipment_list - _start16 + call print_string16 + addw $2, %sp + + int $0x11 + pushw %ax + call print_hex16 + addw $2, %sp + + pushw $s_crlf - _start16 + call print_string16 + addw $2, %sp + + retw + +print_sysdesc: + .code16 + pushw $s_sysdesc - _start16 + call print_string16 + addw $2, %sp + + pushw %es + movb $0xc0, %ah + stc + int $0x15 + movw %es, %ax + popw %es + jc print_sysdesc.1 + + pushw %bx + pushw $s_colon - _start16 + pushw %ax + call print_hex16 + addw $2, %sp + call print_string16 + addw $2, %sp + call print_hex16 + addw $2, %sp + jmp print_sysdesc.2 + +print_sysdesc.1: + pushw $s_none - _start16 + call print_string16 + addw $2, %sp + +print_sysdesc.2: + pushw $s_crlf - _start16 + call print_string16 + addw $2, %sp + + retw + +print_edd: + .code16 + pushw $s_edd - _start16 + call print_string16 + add $2, %sp + + movb $0x80, %dl + movb $0x41, %ah # Function 41 + movw $0x55aa, %bx # magic + int $0x13 # make the call + jc print_edd.1 # no more BIOS devices + + cmpw $0xAA55, %bx # is magic right? + jne print_edd.1 # nope + + pushw $s_ok - _start16 + call print_string16 + add $2, %sp + jmp print_edd.2 + +print_edd.1: + pushw $s_none - _start16 + call print_string16 + add $2, %sp + +print_edd.2: + pushw $s_crlf - _start16 + call print_string16 + addw $2, %sp + + retw + +set_auto_repeat_rate: + .code16 + pushw $s_auto_repeat_rate - _start16 + call print_string16 + add $2, %sp + +# Set the keyboard repeat rate to the max + movw $0x0305, %ax + xorw %bx, %bx + int $0x16 + + pushw $s_done - _start16 + call print_string16 + add $2, %sp + + retw + +print_video: + .code16 + pushw $s_video_type - _start16 + call print_string16 + add $2, %sp + + movb $0x12, %ah # Check EGA/VGA + movb $0x10, %bl + int $0x10 + movw $s_video_pre_ega - _start16, %cx + cmpb $0x10, %bl + je print_video.1 + + movw $0x1a00, %ax # Check EGA or VGA? + int $0x10 + movw $s_video_vga - _start16, %cx + cmpb $0x1a, %al # 1a means VGA... + je print_video.1 # anything else is EGA. + + movw $s_video_ega - _start16, %cx + +print_video.1: + pushw %cx + call print_string16 + addw $2, %sp + + pushw $s_crlf - _start16 + call print_string16 + addw $2, %sp + + retw + +print_cursor: + .code16 + pushw $s_cursor - _start16 + call print_string16 + add $2, %sp + + movb $0x03, %ah # Read cursor position + xorb %bh, %bh + int $0x10 + + xorw %ax, %ax + movb %dl, %al + pushw %ax + pushw $s_space - _start16 + movb %dh, %al + pushw %ax + + call print_hex16 + add $2, %sp + call print_string16 + add $2, %sp + call print_hex16 + add $2, %sp + + pushw $s_crlf - _start16 + call print_string16 + add $2, %sp + + retw + +print_video_mode: + .code16 + pushw $s_video_mode - _start16 + call print_string16 + add $2, %sp + + movb $0x0f, %ah # Read cursor position + int $0x10 + + xorb %ah, %ah + pushw %ax + call print_hex16 + add $2, %sp + + pushw $s_crlf - _start16 + call print_string16 + add $2, %sp + + retw + + +disable_apm: + push %bp + movw %sp, %bp + pushw %bx + + pushw $s_testing_for_apm - _start16 + call print_string16 + add $2, %sp + + # check for APM BIOS + movw $0x5300, %ax # APM BIOS installation check + xorw %bx, %bx + int $0x15 + jc done_apm_bios # error -> no APM BIOS + + cmpw $0x504d, %bx # check for "PM" signature + jne done_apm_bios # no signature -> no APM BIOS + + pushw $s_apm_found_disconnecting - _start16 + call print_string16 + add $2, %sp + + movw $0x5304, %ax # Disconnect first just in case + xorw %bx, %bx + int $0x15 # ignore return code + + pushw $s_apm_connecting - _start16 + call print_string16 + add $2, %sp + + movw $0x5301, %ax # Real Mode connect + xorw %bx, %bx + int $0x15 + jc done_apm_bios # error + + pushw $s_apm_disabling - _start16 + call print_string16 + add $2, %sp + + movw $0x5308, %ax # Disable APM + mov $0xffff, %bx + xorw %cx, %cx + int $0x15 + + pushw $s_apm_disconnecting - _start16 + call print_string16 + add $2, %sp + + movw $0x5304, %ax # Do a final disconnect + xorw %bx, %bx + int $0x15 + +done_apm_bios: + pushw $s_apm_test_done - _start16 + call print_string16 + add $2, %sp + + popw %bx + popw %bp + retw + + +# Delay is needed after doing I/O +delay: + .code16 + outb %al,$0x80 + retw + +halt16: + .code16 + hlt + jmp halt16 + + +print_string16: + .code16 + pushw %bp + movw %sp, %bp + pushw %si + movw 4(%bp), %si + xorw %ax, %ax +print_string16.1: + lodsb %ds:(%si), %al + testb $0xff, %al + jz print_string16.2 + call print_char16 + jmp print_string16.1 +print_string16.2: + popw %si + popw %bp + ret + +print_hex16: + .code16 + pushw %bp + movw %sp, %bp + movw $16, %cx +print_hex16.1: + movw 4(%bp), %ax + subb $4, %cl + shrw %cl, %ax + andb $0x0f, %al + cmpb $9, %al + ja print_hex16.2 + addb $'0', %al + jmp print_hex16.3 +print_hex16.2: + addb $'A' - 10, %al +print_hex16.3: + pushw %cx + call print_char16 + popw %cx + testb %cl, %cl + jnz print_hex16.1 + + popw %bp + ret + +print_char16: + .code16 + # The character to print is in al + call serial_print_char16 + retw + + +#define TTYS0_BASE 0x3f8 +#define TTYS0_RBR (TTYS0_BASE + 0x00) +#define TTYS0_TBR (TTYS0_BASE + 0x00) +#define TTYS0_LSR (TTYS0_BASE + 0x05) + +serial_print_char16: + .code16 + pushw %bp + movw %sp, %bp + # The character to print is in al + pushw %ax + + # Wait until the serial port is ready to receive characters +serial_print_char16.1: + movw $TTYS0_LSR, %dx + inb %dx, %al + testb $0x20, %al + jz serial_print_char16.1 + + # Output the character + movw $TTYS0_TBR, %dx + movb -2(%bp), %al + outb %al, %dx + + # Wait until the serial port has transmitted the character +serial_print_char16.2: + movw $TTYS0_LSR, %dx + inb %dx, %al + testb $0x40, %al + jz serial_print_char16.2 + + # Restore %eax + popw %ax + # Return to caller + popw %bp + retw + + +s_a20_err_msg: + .asciz "A20 gate not responding!\r\n" + +s_in_real_mode: + .asciz "In real mode.\r\n" +s_base_memory_size: + .asciz "Base memory size: " +s_interrupts_enabled: + .asciz "Interrupts enabled.\r\n" +s_a20_disabled: + .asciz "A20 disabled.\r\n" +s_a20_cant_disable: + .asciz "Can not A20 line.\r\n" +s_a20_enabled: + .asciz "A20 enabled\r\n" +s_interrupts_disabled: + .asciz "Interrupts disabled.\r\n" + +s_meme820: .asciz "E820 Memory Map.\r\n" +s_at: .asciz " @ " +s_type: .asciz " type: " +s_space: .asciz " " +s_colon: .asciz ":" +s_none: .asciz " none " +s_ok: .asciz " ok " +s_done: .asciz " done\r\n" + +s_meme801: + .asciz "E801 Memory size: " +s_mem88: + .asciz "Mem88 Memory size: " + +s_dasd_type: + .asciz "DASD type: " +s_equipment_list: + .asciz "Equiptment list: " +s_sysdesc: + .asciz "Sysdesc: " +s_edd: + .asciz "EDD: " +s_auto_repeat_rate: + .asciz "Setting auto repeat rate " + + +s_video_type: + .asciz "Video type: " +s_video_pre_ega: + .asciz "CGA/MDA/HGA" +s_video_ega: + .asciz "EGA" +s_video_vga: + .asciz "VGA" + +s_cursor: + .asciz "Cursor Position(Row,Column): " + +s_video_mode: + .asciz "Video Mode: " + +s_testing_for_apm: + .asciz "Testing for APM.\r\n" +s_apm_found_disconnecting: + .asciz "APM Found disconnecting.\r\n" +s_apm_connecting: + .asciz "APM connecting.\r\n" +s_apm_disabling: + .asciz "APM disabling.\r\n" +s_apm_disconnecting: + .asciz "APM disconnecting.\r\n" +s_apm_test_done: + .asciz "APM test done.\r\n" + +s_crlf: .asciz "\r\n" + + + +a20_tries: .byte A20_ENABLE_LOOPS +a20_disable_tries: .byte A20_DISABLE_LOOPS + + +e820nr: .byte 0 +e820_map: .fill E820_MAX * E820_SIZE, 1, 0 diff --git a/kexec_test/x86-setup-legacy-pic.S b/kexec_test/x86-setup-legacy-pic.S new file mode 100644 index 00000000..32ef42f1 --- /dev/null +++ b/kexec_test/x86-setup-legacy-pic.S @@ -0,0 +1,53 @@ +/* + * kexec: Linux boots Linux + * + * Copyright (C) 2003,2004 Eric Biederman (ebiederm@xmission.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation (version 2 of the License). + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + + .text + .code32 +setup_legacy_pic: + /* Load the legacy dos settings into the 8259A pic */ + movb $0xff, %al + outb %al, $0x21 /* mask all of 8259A-1 */ + outb %al, $0xa1 /* mask all of 8259A-1 */ + + movb $0x11, %al + outb %al, $0x20 /* ICW1: select 8259A-1 init */ + outb %al, $0x80 /* A short delay */ + movb $0x08, %al + outb %al, $0x21 /* ICW2: 8259A-1 IR0-7 mappend to 0x8-0xf */ + outb %al, $0x80 /* A short delay */ + movb $01, %al + outb %al, $0x21 /* Normal 8086 auto EOI mode */ + outb %al, $0x80 /* A short delay */ + + + movb $0x11, %al + outb %al, $0xA0 /* ICW1: select 8259A-2 init */ + outb %al, $0x80 /* A short delay */ + movb $0x70, %al + outb %al, $0xA1 /* ICW2: 8259A-2 IR0-7 mappend to 0x70-0x77 */ + outb %al, $0x80 /* A short delay */ + movb $01, %al + outb %al, $0xA1 /* Normal 8086 auto EOI mode */ + outb %al, $0x80 /* A short delay */ + + movb $0, %al + outb %al, $0x21 /* Unmask all of 8259A-1 */ + outb %al, $0xa1 /* Unmask all of 8259A-2 */ + + ret diff --git a/purgatory/Makefile b/purgatory/Makefile new file mode 100644 index 00000000..93f58308 --- /dev/null +++ b/purgatory/Makefile @@ -0,0 +1,68 @@ +# +# Purgatory (an uncomfortable intermediate state) +# In this case the code that runs between kernels +# + +# There is probably a cleaner way to do this but for now this +# should keep us from accidentially include unsafe library functions +# or headers. +PCFLAGS:=-Wall -Os \ + -I$(shell $(CC) -print-file-name=include) \ + -Ipurgatory/include -Ipurgatory/arch/$(ARCH)/include \ + $(CPPFLAGS) + +PCFLAGS += $(call cc-option, -ffreestanding) +PCFLAGS += $(call cc-option, -fnobuiltin) +PCFLAGS += $(call cc-option, -fnostdinc) +PCFLAGS += $(call cc-option, -fno-zero-initialized-in-bss) + +PURGATORY_C_SRCS:= +PURGATORY_C_SRCS += purgatory/purgatory.c +PURGATORY_C_SRCS += purgatory/printf.c +PURGATORY_C_SRCS += purgatory/string.c +PURGATORY_S_OBJS:= + +include purgatory/arch/$(ARCH)/Makefile + + +PURGATORY_C_OBJS:= $(patsubst %.c, $(OBJDIR)/%.o, $(PURGATORY_C_SRCS)) +PURGATORY_C_DEPS:= $(patsubst %.c, $(OBJDIR)/%.d, $(PURGATORY_C_SRCS)) +PURGATORY_S_OBJS:= $(patsubst %.S, $(OBJDIR)/%.o, $(PURGATORY_S_SRCS)) +PURGATORY_S_DEPS:= $(patsubst %.S, $(OBJDIR)/%.d, $(PURGATORY_S_SRCS)) +PURGATORY_SRCS:= $(PURGATORY_S_SRCS) $(PURGATORY_C_SRCS) +PURGATORY_OBJS:= $(PURGATORY_S_OBJS) $(PURGATORY_C_OBJS) +PURGATORY_DEPS:= $(PURGATORY_S_DEPS) $(PURGATORY_C_DEPS) +PURGATORY:= $(OBJDIR)/purgatory/purgatory.ro + +include $(PURGATORY_DEPS) + +$(PURGATORY_C_DEPS): $(OBJDIR)/%.d: %.c + $(MKDIR) -p $(@D) + $(CC) $(PCFLAGS) -M $< | sed -e 's|$(patsubst %.d,%.o,$(@F))|$(patsubst %.d,%.o,$(@))|' > $@ + +$(PURGATORY_S_DEPS): $(OBJDIR)/%.d: %.S + $(MKDIR) -p $(@D) + $(CC) $(PCFLAGS) -M $< | sed -e 's|$(patsubst %.d,%.o,$(@F))|$(patsubst %.d,%.o,$(@))|' > $@ + +$(PURGATORY_C_OBJS): $(OBJDIR)/%.o: %.c $(OBJDIR)/%.d + $(MKDIR) -p $(@D) + $(CC) $(PCFLAGS) -o $@ -c $< + +$(PURGATORY_S_OBJS): $(OBJDIR)/%.o: %.S $(OBJDIR)/%.d + $(MKDIR) -p $(@D) + $(CC) $(PCFLAGS) -o $@ -c $< + +$(PURGATORY): $(PURGATORY_OBJS) $(UTIL_LIB) + $(MKDIR) -p $(@D) + $(LD) $(LDFLAGS) --no-undefined -e purgatory_start -r -o $@ $(PURGATORY_OBJS) $(UTIL_LIB) + +echo:: + @echo "PURGATORY_C_SRCS $(PURGATORY_C_SRCS)" + @echo "PURGATORY_C_DEPS $(PURGATORY_C_DEPS)" + @echo "PURGATORY_C_OBJS $(PURGATORY_C_OBJS)" + @echo "PURGATORY_S_SRCS $(PURGATORY_S_SRCS)" + @echo "PURGATORY_S_DEPS $(PURGATORY_S_DEPS)" + @echo "PURGATORY_S_OBJS $(PURGATORY_S_OBJS)" + @echo "PURGATORY_SRCS $(PURGATORY_SRCS)" + @echo "PURGATORY_DEPS $(PURGATORY_DEPS)" + @echo "PURGATORY_OBJS $(PURGATORY_OBJS)" diff --git a/purgatory/arch/alpha/Makefile b/purgatory/arch/alpha/Makefile new file mode 100644 index 00000000..a626bbd7 --- /dev/null +++ b/purgatory/arch/alpha/Makefile @@ -0,0 +1,7 @@ +# +# Purgatory alpha +# + +PURGATORY_C_SRCS+= +PURGATORY_S_SRCS+= + diff --git a/purgatory/arch/alpha/include/limits.h b/purgatory/arch/alpha/include/limits.h new file mode 100644 index 00000000..0c6f21f9 --- /dev/null +++ b/purgatory/arch/alpha/include/limits.h @@ -0,0 +1,57 @@ +#ifndef LIMITS_H +#define LIMITS_H 1 + +/* Number of bits in a `char' */ +#define CHAR_BIT 8 + +/* Minimum and maximum values a `signed char' can hold */ +#define SCHAR_MIN (-128) +#define SCHAR_MAX 127 + +/* Maximum value an `unsigned char' can hold. (Minimum is 0.) */ +#define UCHAR_MAX 255 + +/* Minimum and maximum values a `char' can hold */ +#define CHAR_MIN SCHAR_MIN +#define CHAR_MAX SCHAR_MAX + +/* Minimum and maximum values a `signed short int' can hold */ +#define SHRT_MIN (-32768) +#define SHRT_MAX 32767 + +/* Maximum value an `unsigned short' can hold. (Minimum is 0.) */ +#define USHRT_MAX 65535 + + +/* Minimum and maximum values a `signed int' can hold */ +#define INT_MIN (-INT_MAX - 1) +#define INT_MAX 2147483647 + +/* Maximum value an `unsigned int' can hold. (Minimum is 0.) */ +#define UINT_MAX 4294967295U + + +/* Minimum and maximum values a `signed int' can hold */ +#define INT_MIN (-INT_MAX - 1) +#define INT_MAX 2147483647 + +/* Maximum value an `unsigned int' can hold. (Minimum is 0.) */ +#define UINT_MAX 4294967295U + +/* Minimum and maximum values a `signed long' can hold */ +#define LONG_MAX 9223372036854775807L +#define LONG_MIN (-LONG_MAX - 1L) + +/* Maximum value an `unsigned long' can hold. (Minimum is 0.) */ +#define ULONG_MAX 18446744073709551615UL + +/* Minimum and maximum values a `signed long long' can hold */ +#define LLONG_MAX 9223372036854775807LL +#define LLONG_MIN (-LONG_MAX - 1LL) + + +/* Maximum value an `unsigned long long' can hold. (Minimum is 0.) */ +#define ULLONG_MAX 18446744073709551615ULL + + +#endif /* LIMITS_H */ diff --git a/purgatory/arch/alpha/include/stdint.h b/purgatory/arch/alpha/include/stdint.h new file mode 100644 index 00000000..2f9c592c --- /dev/null +++ b/purgatory/arch/alpha/include/stdint.h @@ -0,0 +1,16 @@ +#ifndef STDINT_H +#define STDINT_H + +typedef unsigned long size_t; + +typedef unsigned char uint8_t; +typedef unsigned short uint16_t; +typedef unsigned int uint32_t; +typedef unsigned long uint64_t; + +typedef signed char int8_t; +typedef signed short int16_t; +typedef signed int int32_t; +typedef signed long int64_t; + +#endif /* STDINT_H */ diff --git a/purgatory/arch/i386/Makefile b/purgatory/arch/i386/Makefile new file mode 100644 index 00000000..8af604c2 --- /dev/null +++ b/purgatory/arch/i386/Makefile @@ -0,0 +1,14 @@ +# +# Purgatory i386 +# + +PURGATORY_S_SRCS+= purgatory/arch/i386/entry32-16.S +PURGATORY_S_SRCS+= purgatory/arch/i386/entry32-16-debug.S +PURGATORY_S_SRCS+= purgatory/arch/i386/entry32.S +PURGATORY_S_SRCS+= purgatory/arch/i386/setup-x86.S +PURGATORY_S_SRCS+= purgatory/arch/i386/stack.S +PURGATORY_S_SRCS+= purgatory/arch/i386/compat_x86_64.S +PURGATORY_C_SRCS+= purgatory/arch/i386/purgatory-x86.c +PURGATORY_C_SRCS+= purgatory/arch/i386/console-x86.c +PURGATORY_C_SRCS+= purgatory/arch/i386/vga.c +PURGATORY_C_SRCS+= purgatory/arch/i386/pic.c diff --git a/purgatory/arch/i386/compat_x86_64.S b/purgatory/arch/i386/compat_x86_64.S new file mode 100644 index 00000000..16490853 --- /dev/null +++ b/purgatory/arch/i386/compat_x86_64.S @@ -0,0 +1,100 @@ +/* + * kexec: Linux boots Linux + * + * Copyright (C) 2003,2004,2005 Eric Biederman (ebiederm@xmission.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation (version 2 of the License). + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + + .equ MSR_K6_EFER, 0xC0000080 + .equ EFER_LME, 0x00000100 + .equ X86_CR4_PAE, 0x00000020 + .equ CR0_PG, 0x80000000 + + .globl compat_x86_64, compat_x86_64_entry32 + .text + .code64 + .balign 16 +compat_x86_64: + /* Setup a temporary gdt */ + /* This also acts as a serializing instruction ensuring + * my self modifying code works. + */ + lgdt gdt(%rip) + + /* Switch to 32bit compatiblity mode */ + ljmp *lm_exit_addr(%rip) +lm_exit: + .code32 + + /* Disable paging */ + movl %cr0, %eax + andl $~CR0_PG, %eax + movl %eax, %cr0 + + /* Disable long mode */ + movl $MSR_K6_EFER, %ecx + rdmsr + andl $~EFER_LME, %eax + wrmsr + + /* Disable PAE */ + xorl %eax, %eax + movl %eax, %cr4 + + /* load the data segments */ + movl $0x18, %eax /* data segment */ + movl %eax, %ds + movl %eax, %es + movl %eax, %ss + movl %eax, %fs + movl %eax, %gs + + /* set all of the registers to known values */ + /* leave %esp alone */ + + xorl %eax, %eax + xorl %ebx, %ebx + xorl %ecx, %ecx + xorl %edx, %edx + xorl %esi, %esi + xorl %edi, %edi + xorl %ebp, %ebp + + jmp *compat_x86_64_entry32 + + .section ".rodata" + .balign 16 +gdt: /* 0x00 unusable segment + * 0x08 unused + * so use them as the gdt ptr + */ + .word gdt_end - gdt - 1 + # A quad word pointer to the gdt with the high 32bits 0 + .long gdt, 0 + .word 0, 0, 0 + + /* 0x10 4GB flat code segment */ + .word 0xFFFF, 0x0000, 0x9A00, 0x00CF + /* 0x18 4GB flat data segment */ + .word 0xFFFF, 0x0000, 0x9200, 0x00CF +gdt_end: + +lm_exit_addr: + .long lm_exit + .long 0x10 + +compat_x86_64_entry32: + .long 0 +.size compat_x86_64_entry32, . - compat_x86_64_entry32 diff --git a/purgatory/arch/i386/console-x86.c b/purgatory/arch/i386/console-x86.c new file mode 100644 index 00000000..128f2026 --- /dev/null +++ b/purgatory/arch/i386/console-x86.c @@ -0,0 +1,134 @@ +#include <arch/io.h> +#include <purgatory.h> + +/* + * VGA + * ============================================================================= + */ + +/* Simple VGA output */ + +#define VGABASE ((void *)0xb8000) + +#define MAX_YPOS 25 +#define MAX_XPOS 80 + +static int current_ypos = 1, current_xpos = 0; +uint8_t console_vga = 0; + +static void putchar_vga(int ch) +{ + int i, k, j; + if (!console_vga) + return; + + if (current_ypos >= MAX_YPOS) { + /* scroll 1 line up */ + for (k = 1, j = 0; k < MAX_YPOS; k++, j++) { + for (i = 0; i < MAX_XPOS; i++) { + writew(readw(VGABASE + 2*(MAX_XPOS*k + i)), + VGABASE + 2*(MAX_XPOS*j + i)); + } + } + for (i = 0; i < MAX_XPOS; i++) + writew(0x720, VGABASE + 2*(MAX_XPOS*j + i)); + current_ypos = MAX_YPOS-1; + } + if (ch == '\n') { + current_xpos = 0; + current_ypos++; + } else if (ch != '\r') { + writew(((0x7 << 8) | (unsigned short) ch), + VGABASE + 2*(MAX_XPOS*current_ypos + + current_xpos++)); + if (current_xpos >= MAX_XPOS) { + current_xpos = 0; + current_ypos++; + } + } +} + +/* + * Serial + * ============================================================================= + */ + +/* Base Address */ +uint8_t console_serial = 0; +uint16_t serial_base = 0x3f8; /* TTYS0 */ +uint32_t serial_baud = 0; + +#define XMTRDY 0x20 + +#define DLAB 0x80 + +#define TXR 0 /* Transmit register (WRITE) */ +#define TBR 0 /* Transmit register (WRITE) */ +#define RXR 0 /* Receive register (READ) */ +#define IER 1 /* Interrupt Enable */ +#define IIR 2 /* Interrupt ID */ +#define FCR 2 /* FIFO control */ +#define LCR 3 /* Line control */ +#define MCR 4 /* Modem control */ +#define LSR 5 /* Line Status */ +#define MSR 6 /* Modem Status */ +#define DLL 0 /* Divisor Latch Low */ +#define DLH 1 /* Divisor latch High */ + +static void serial_init(void) +{ + static int initialized = 0; + if (!initialized) { + unsigned lcr; + outb(0x3, serial_base + LCR); /* 8n1 */ + outb(0, serial_base + IER); /* no interrupt */ + outb(0, serial_base + FCR); /* no fifo */ + outb(0x3, serial_base + MCR); /* DTR + RTS */ + + lcr = inb(serial_base + LCR); + outb(lcr | DLAB, serial_base + LCR); + /* By default don't change the serial port baud rate */ + if (serial_baud) { + unsigned divisor = 115200 / serial_baud; + outb(divisor & 0xff, serial_base + DLL); + outb((divisor >> 8) & 0xff, serial_base + DLH); + } + outb(lcr & ~DLAB, serial_base + LCR); + initialized = 1; + } +} + +static void serial_tx_byte(unsigned byte) +{ + /* Ensure the serial port is initialized */ + serial_init(); + + /* Wait until I can send a byte */ + while((inb(serial_base + LSR) & 0x20) == 0) + ; + outb(byte, serial_base + TBR); + /* Wait until the byte is transmitted */ + while(!(inb(serial_base + LSR) & 0x40)) + ; +} + +static void putchar_serial(int ch) +{ + if (!console_serial) { + return; + } + if (ch == '\n') { + serial_tx_byte('\r'); + } + serial_tx_byte(ch); +} + +/* Generic wrapper function */ + +void putchar(int ch) +{ + putchar_vga(ch); + putchar_serial(ch); +} + + diff --git a/purgatory/arch/i386/entry16.S b/purgatory/arch/i386/entry16.S new file mode 100644 index 00000000..c4a3dad8 --- /dev/null +++ b/purgatory/arch/i386/entry16.S @@ -0,0 +1,160 @@ +/* + * kexec: Linux boots Linux + * + * Copyright (C) 2003,2004 Eric Biederman (ebiederm@xmission.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation (version 2 of the License). + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#undef i386 + .text + .globl entry16, entry16_regs + .arch i386 + .balign 16 +entry16: + .code32 + /* Compute where I am running at */ + movl $entry16, %ebx + + /* Fixup my real mode segment */ + movl %ebx, %eax + shrl $4, %eax + movw %ax, 2 + realptr + + /* Fixup the gdt */ + movl %ebx, %eax + shll $16, %eax + + movl %ebx, %ecx + shrl $16, %ecx + andl $0xff, %ecx + + movl %ebx, %edx + andl $0xff000000, %edx + orl %edx, %ecx + + orl %eax, 0x08 + gdt + orl %ecx, 0x0c + gdt + orl %eax, 0x10 + gdt + orl %ecx, 0x14 + gdt + + + /* Setup the classic BIOS interrupt table at 0x0 */ + lidt idtptr + + /* Provide us with 16bit segments that we can use */ + lgdt gdt + + /* Note we don't disable the a20 line, (this shouldn't be required) + * The code to do it is in kexec_test and it is a real pain. + * I will worry about that when I need it. + */ + + /* Load 16bit data segments, to ensure the segment limits are set */ + movl $0x10, %eax + movl %eax, %ds + movl %eax, %es + movl %eax, %ss + movl %eax, %fs + movl %eax, %gs + + /* switch to 16bit mode */ + ljmp $0x08, $1f - entry16 +1: + .code16 + /* Disable Paging and protected mode */ + /* clear the PG & PE bits of CR0 */ + movl %cr0,%eax + andl $~((1 << 31)|(1<<0)),%eax + movl %eax,%cr0 + + /* make intersegment jmp to flush the processor pipeline + * and reload %cs:%eip (to clear upper 16 bits of %eip). + */ + ljmp *(realptr - entry16) +3: + /* we are in real mode now + * set up the real mode segment registers : %ds, $ss, %es + */ + /* Setup the data segment */ + movw %cs, %ax + movw %ax, %ds + + /* Load the registers */ + movl eax - entry16, %eax + movl ebx - entry16, %ebx + movl ecx - entry16, %ecx + movl edx - entry16, %edx + movl esi - entry16, %esi + movl edi - entry16, %esi + movl esp - entry16, %esp + movl ebp - entry16, %ebp + movw es - entry16, %es + movw ss - entry16, %ss + movw fs - entry16, %fs + movw gs - entry16, %gs + movw ds - entry16, %ds + + /* Jump to the kernel entrypoint */ + ljmp %cs:*(realdest - entry16) + + .balign 4 +entry16_regs: +eax: .long 0x00000000 +ebx: .long 0x00000000 +ecx: .long 0x00000000 +edx: .long 0x00000000 +esi: .long 0x00000000 +edi: .long 0x00000000 +esp: .long 0x00000000 +ebp: .long 0x00000000 +ds: .word 0x0000 +es: .word 0x0000 +ss: .word 0x0000 +fs: .word 0x0000 +gs: .word 0x0000 +realdest: +ip: .word 0x0000 +cs: .word 0x0000 +pad: .word 0x0000 + .size entry16_regs, . - entry16_regs + + .balign 16 +realptr: + .word 3b - entry16 + .word 0x0000 + + .data + .balign 16 + +idtptr: + /* 256 entry idt at 0 */ + .word 0x400 - 1 + .word 0, 0 + + .balign 16 +gdt: + /* 0x00 unusable segment so used as the gdt ptr */ + .word gdt_end - gdt - 1 + .long gdt + .word 0 + + /* 0x08 16 bit real mode code segment */ + .word 0xffff, 0x0000 + .byte 0x00, 0x9b, 0x00, 0x00 + + /* 0x10 16 bit real mode data segment */ + .word 0xffff, 0x0000 + .byte 0x00, 0x93, 0x00, 0x00 +gdt_end: diff --git a/purgatory/arch/i386/entry32-16-debug.S b/purgatory/arch/i386/entry32-16-debug.S new file mode 100644 index 00000000..fdf70edc --- /dev/null +++ b/purgatory/arch/i386/entry32-16-debug.S @@ -0,0 +1,195 @@ +/* + * kexec: Linux boots Linux + * + * Copyright (C) 2003,2004 Eric Biederman (ebiederm@xmission.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation (version 2 of the License). + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include "arch/debug.h" + +#undef i386 + .text + .globl entry16_debug, entry16_debug_regs + .globl entry16_debug_pre32 + .globl entry16_debug_first32 + .globl entry16_debug_old_first32 + .arch i386 + .balign 16 +entry16_debug: + .code32 + /* Compute where I am running at */ + movl $entry16_debug, %ebx + + /* Fixup my real mode segment */ + movl %ebx, %eax + shrl $4, %eax + movw %ax, 2 + realptr + + /* Fixup the gdt */ + movl %ebx, %eax + shll $16, %eax + + movl %ebx, %ecx + shrl $16, %ecx + andl $0xff, %ecx + + movl %ebx, %edx + andl $0xff000000, %edx + orl %edx, %ecx + + orl %eax, 0x08 + gdt + orl %ecx, 0x0c + gdt + orl %eax, 0x10 + gdt + orl %ecx, 0x14 + gdt + + +DEBUG('a') + /* Setup the classic BIOS interrupt table at 0x0 */ + lidt idtptr + +DEBUG('b') + /* Provide us with 16bit segments that we can use */ + lgdt gdt + +DEBUG('c') + /* Note we don't disable the a20 line, (this shouldn't be required) + * The code to do it is in kexec_test and it is a real pain. + * I will worry about that when I need it. + */ + + /* Load 16bit data segments, to ensure the segment limits are set */ + movl $0x10, %eax + movl %eax, %ds + movl %eax, %es + movl %eax, %ss + movl %eax, %fs + movl %eax, %gs + +DEBUG('d') + + /* switch to 16bit mode */ + ljmp $0x08, $1f - entry16_debug +1: + .code16 +DEBUG('e') + /* Disable Paging and protected mode */ + /* clear the PG & PE bits of CR0 */ + movl %cr0,%eax + andl $~((1 << 31)|(1<<0)),%eax + movl %eax,%cr0 + +DEBUG('f') + /* make intersegment jmp to flush the processor pipeline + * and reload %cs:%eip (to clear upper 16 bits of %eip). + */ + ljmp *(realptr - entry16_debug) +3: +DEBUG('g') + /* we are in real mode now + * set up the real mode segment registers : %ds, $ss, %es + */ + /* Setup the data segment */ + movw %cs, %ax + movw %ax, %ds + +DEBUG('h') + /* Load the registers */ + movl eax - entry16_debug, %eax + movl ebx - entry16_debug, %ebx + movl ecx - entry16_debug, %ecx + movl edx - entry16_debug, %edx + movl esi - entry16_debug, %esi + movl edi - entry16_debug, %esi + movl esp - entry16_debug, %esp + movl ebp - entry16_debug, %ebp + movw es - entry16_debug, %es + movw ss - entry16_debug, %ss + movw fs - entry16_debug, %fs + movw gs - entry16_debug, %gs + movw ds - entry16_debug, %ds + + /* Jump to the kernel entrypoint */ + ljmp %cs:*(realdest - entry16_debug) + + .balign 4 +entry16_debug_regs: +eax: .long 0x00000000 +ebx: .long 0x00000000 +ecx: .long 0x00000000 +edx: .long 0x00000000 +esi: .long 0x00000000 +edi: .long 0x00000000 +esp: .long 0x00000000 +ebp: .long 0x00000000 +ds: .word 0x0000 +es: .word 0x0000 +ss: .word 0x0000 +fs: .word 0x0000 +gs: .word 0x0000 +realdest: +ip: .word 0x0000 +cs: .word 0x0000 +pad: .word 0x0000 + .size entry16_debug_regs, . - entry16_debug_regs + + .balign 16 +realptr: + .word 3b - entry16_debug + .word 0x0000 + + .data + .balign 16 + +idtptr: + /* 256 entry idt at 0 */ + .word 0x400 - 1 + .word 0, 0 + +gdt: + /* 0x00 unusable segment so used as the gdt ptr */ + .word gdt_end - gdt - 1 + .long gdt + .word 0 + + /* 0x08 16 bit real mode code segment */ + .word 0xffff, 0x0000 + .byte 0x00, 0x9b, 0x00, 0x00 + + /* 0x10 16 bit real mode data segment */ + .word 0xffff, 0x0000 + .byte 0x00, 0x93, 0x00, 0x00 +gdt_end: + .size gdt, . - gdt + + .text +entry16_debug_pre32: + .code16 +DEBUG('i') + cli # no interrupts allowed ! + movb $0x80, %al # disable NMI for bootup + # sequence + outb %al, $0x70 + lret +.size entry16_debug_pre32, . - entry16_debug_pre32 + +entry16_debug_first32: + .code32 +DEBUG('j') + .byte 0xb8 /* movl $0x10000, %eax */ +entry16_debug_old_first32: + .long 0x100000 + .size entry16_debug_old_first32, . - entry16_debug_old_first32 + jmp %eax +.size entry16_debug_first32, . - entry16_debug_first32 diff --git a/purgatory/arch/i386/entry32-16.S b/purgatory/arch/i386/entry32-16.S new file mode 100644 index 00000000..a37fb558 --- /dev/null +++ b/purgatory/arch/i386/entry32-16.S @@ -0,0 +1,160 @@ +/* + * kexec: Linux boots Linux + * + * Copyright (C) 2003,2004 Eric Biederman (ebiederm@xmission.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation (version 2 of the License). + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#undef i386 + .text + .globl entry16, entry16_regs + .arch i386 + .balign 16 +entry16: + .code32 + /* Compute where I am running at */ + movl $entry16_debug, %ebx + + /* Fixup my real mode segment */ + movl %ebx, %eax + shrl $4, %eax + movw %ax, 2 + realptr + + /* Fixup the gdt */ + movl %ebx, %eax + shll $16, %eax + + movl %ebx, %ecx + shrl $16, %ecx + andl $0xff, %ecx + + movl %ebx, %edx + andl $0xff000000, %edx + orl %edx, %ecx + + orl %eax, 0x08 + gdt + orl %ecx, 0x0c + gdt + orl %eax, 0x10 + gdt + orl %ecx, 0x14 + gdt + + + /* Setup the classic BIOS interrupt table at 0x0 */ + lidt idtptr + + /* Provide us with 16bit segments that we can use */ + lgdt gdt + + /* Note we don't disable the a20 line, (this shouldn't be required) + * The code to do it is in kexec_test and it is a real pain. + * I will worry about that when I need it. + */ + + /* Load 16bit data segments, to ensure the segment limits are set */ + movl $0x10, %eax + movl %eax, %ds + movl %eax, %es + movl %eax, %ss + movl %eax, %fs + movl %eax, %gs + + /* switch to 16bit mode */ + ljmp $0x08, $1f - entry16 +1: + .code16 + /* Disable Paging and protected mode */ + /* clear the PG & PE bits of CR0 */ + movl %cr0,%eax + andl $~((1 << 31)|(1<<0)),%eax + movl %eax,%cr0 + + /* make intersegment jmp to flush the processor pipeline + * and reload %cs:%eip (to clear upper 16 bits of %eip). + */ + ljmp *(realptr - entry16) +3: + /* we are in real mode now + * set up the real mode segment registers : %ds, $ss, %es + */ + /* Setup the data segment */ + movw %cs, %ax + movw %ax, %ds + + /* Load the registers */ + movl eax - entry16, %eax + movl ebx - entry16, %ebx + movl ecx - entry16, %ecx + movl edx - entry16, %edx + movl esi - entry16, %esi + movl edi - entry16, %esi + movl esp - entry16, %esp + movl ebp - entry16, %ebp + movw es - entry16, %es + movw ss - entry16, %ss + movw fs - entry16, %fs + movw gs - entry16, %gs + movw ds - entry16, %ds + + /* Jump to the kernel entrypoint */ + ljmp %cs:*(realdest - entry16) + + .balign 4 +entry16_regs: +eax: .long 0x00000000 +ebx: .long 0x00000000 +ecx: .long 0x00000000 +edx: .long 0x00000000 +esi: .long 0x00000000 +edi: .long 0x00000000 +esp: .long 0x00000000 +ebp: .long 0x00000000 +ds: .word 0x0000 +es: .word 0x0000 +ss: .word 0x0000 +fs: .word 0x0000 +gs: .word 0x0000 +realdest: +ip: .word 0x0000 +cs: .word 0x0000 +pad: .word 0x0000 + .size entry16_regs, . - entry16_regs + + .balign 16 +realptr: + .word 3b - entry16 + .word 0x0000 + + .data + .balign 16 + +idtptr: + /* 256 entry idt at 0 */ + .word 0x400 - 1 + .word 0, 0 + + .balign 16 +gdt: + /* 0x00 unusable segment so used as the gdt ptr */ + .word gdt_end - gdt - 1 + .long gdt + .word 0 + + /* 0x08 16 bit real mode code segment */ + .word 0xffff, 0x0000 + .byte 0x00, 0x9b, 0x00, 0x00 + + /* 0x10 16 bit real mode data segment */ + .word 0xffff, 0x0000 + .byte 0x00, 0x93, 0x00, 0x00 +gdt_end: diff --git a/purgatory/arch/i386/entry32.S b/purgatory/arch/i386/entry32.S new file mode 100644 index 00000000..f7a494f1 --- /dev/null +++ b/purgatory/arch/i386/entry32.S @@ -0,0 +1,110 @@ +/* + * purgatory: setup code + * + * Copyright (C) 2003,2004 Eric Biederman (ebiederm@xmission.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation (version 2 of the License). + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#undef i386 + + .text + .arch i386 + .globl entry32, entry32_regs +entry32: + .code32 + + /* Setup a gdt that should that is generally usefully */ + lgdt %cs:gdt + + /* load the data segments */ + movl $0x18, %eax /* data segment */ + movl %eax, %ds + movl %eax, %es + movl %eax, %ss + movl %eax, %fs + movl %eax, %gs + + /* load the code segment */ + ljmp $0x10,$1f +1: + + /* Load the registers */ + movl eax, %eax + movl ecx, %ecx + movl edx, %edx + movl esi, %esi + movl edi, %edi + movl esp, %esp + movl ebp, %ebp + movl ebx, %ebx + + /* Jump to the loaded image */ + jmpl *(eip) + + .section ".rodata" + .balign 16 +gdt: + /* 0x00 unusable segment so used as the gdt ptr */ + .word gdt_end - gdt - 1 + .long gdt + .word 0 + + /* 0x08 dummy */ + .word 0x0000, 0x0000, 0x0000, 0x000 + + /* Documented linux kernel segments */ + /* 0x10 4GB flat code segment */ + .word 0xFFFF, 0x0000, 0x9A00, 0x00CF + /* 0x18 4GB flat data segment */ + .word 0xFFFF, 0x0000, 0x9200, 0x00CF + + /* 0x20 dummy */ + .word 0x0000, 0x0000, 0x0000, 0x000 + /* 0x28 dummy */ + .word 0x0000, 0x0000, 0x0000, 0x000 + /* 0x30 dummy */ + .word 0x0000, 0x0000, 0x0000, 0x000 + /* 0x38 dummy */ + .word 0x0000, 0x0000, 0x0000, 0x000 + /* 0x40 dummy */ + .word 0x0000, 0x0000, 0x0000, 0x000 + /* 0x48 dummy */ + .word 0x0000, 0x0000, 0x0000, 0x000 + /* 0x50 dummy */ + .word 0x0000, 0x0000, 0x0000, 0x000 + /* 0x58 dummy */ + .word 0x0000, 0x0000, 0x0000, 0x000 + + /* Segments used by the 2.5.x kernel */ + /* 0x60 4GB flat code segment */ + .word 0xFFFF, 0x0000, 0x9A00, 0x00CF + /* 0x68 4GB flat data segment */ + .word 0xFFFF, 0x0000, 0x9200, 0x00CF +gdt_end: + + .data + .balign 4 +entry32_regs: +eax: .long 0x00000000 +ebx: .long 0x00000000 +ecx: .long 0x00000000 +edx: .long 0x00000000 +esi: .long 0x00000000 +edi: .long 0x00000000 +esp: .long 0x00000000 +ebp: .long 0x00000000 +eip: .long entry16 + .size entry32_regs, . - entry32_regs + diff --git a/purgatory/arch/i386/include/arch/debug.h b/purgatory/arch/i386/include/arch/debug.h new file mode 100644 index 00000000..69deaf19 --- /dev/null +++ b/purgatory/arch/i386/include/arch/debug.h @@ -0,0 +1,316 @@ +/* Base Address */ +#define TTYS0_BASE 0x3f8 +/* Data */ +#define TTYS0_RBR (TTYS0_BASE+0x00) +#define TTYS0_TBR (TTYS0_BASE+0x00) +/* Control */ +#define TTYS0_IER (TTYS0_BASE+0x01) +#define TTYS0_IIR (TTYS0_BASE+0x02) +#define TTYS0_FCR (TTYS0_BASE+0x02) +#define TTYS0_LCR (TTYS0_BASE+0x03) +#define TTYS0_MCR (TTYS0_BASE+0x04) + +#define TTYS0_DLL (TTYS0_BASE+0x00) +#define TTYS0_DLM (TTYS0_BASE+0x01) +/* Status */ +#define TTYS0_LSR (TTYS0_BASE+0x05) +#define TTYS0_MSR (TTYS0_BASE+0x06) +#define TTYS0_SCR (TTYS0_BASE+0x07) + +#define TTYS0_BAUD 9600 +#define TTYS0_DIV (115200/TTYS0_BAUD) +#define TTYS0_DIV_LO (TTYS0_DIV&0xFF) +#define TTYS0_DIV_HI ((TTYS0_DIV >> 8)&0xFF) + +#if ((115200%TTYS0_BAUD) != 0) +#error Bad ttyS0 baud rate +#endif + +#define TTYS0_INIT \ + /* disable interrupts */ \ + movb $0x00, %al ; \ + movw $TTYS0_IER, %dx ; \ + outb %al, %dx ; \ + ; \ + /* enable fifos */ \ + movb $0x01, %al ; \ + movw $TTYS0_FCR, %dx ; \ + outb %al, %dx ; \ + ; \ + /* Set Baud Rate Divisor to TTYS0_BAUD */ \ + movw $TTYS0_LCR, %dx ; \ + movb $0x83, %al ; \ + outb %al, %dx ; \ + ; \ + movw $TTYS0_DLL, %dx ; \ + movb $TTYS0_DIV_LO, %al ; \ + outb %al, %dx ; \ + ; \ + movw $TTYS0_DLM, %dx ; \ + movb $TTYS0_DIV_HI, %al ; \ + outb %al, %dx ; \ + ; \ + movw $TTYS0_LCR, %dx ; \ + movb $0x03, %al ; \ + outb %al, %dx + + + /* uses: ax, dx */ +#define TTYS0_TX_AL \ + mov %al, %ah ; \ +9: mov $TTYS0_LSR, %dx ; \ + inb %dx, %al ; \ + test $0x20, %al ; \ + je 9b ; \ + mov $TTYS0_TBR, %dx ; \ + mov %ah, %al ; \ + outb %al, %dx + + /* uses: ax, dx */ +#define TTYS0_TX_CHAR(byte) \ + mov byte, %al ; \ + TTYS0_TX_AL + + /* uses: eax, dx */ +#define TTYS0_TX_HEX32(lword) \ + mov lword, %eax ; \ + shr $28, %eax ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %eax ; \ + shr $24, %eax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %eax ; \ + shr $20, %eax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %eax ; \ + shr $16, %eax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %eax ; \ + shr $12, %eax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %eax ; \ + shr $8, %eax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %eax ; \ + shr $4, %eax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %eax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL + + /* uses: rax, dx */ +#define TTYS0_TX_HEX64(lword) \ + mov lword, %rax ; \ + shr $60, %rax ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %rax ; \ + shr $56, %rax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %rax ; \ + shr $52, %rax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %rax ; \ + shr $48, %rax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %rax ; \ + shr $44, %rax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %rax ; \ + shr $40, %rax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %rax ; \ + shr $36, %rax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %rax ; \ + shr $32, %rax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %rax ; \ + shr $28, %rax ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %rax ; \ + shr $24, %rax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %rax ; \ + shr $20, %rax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %rax ; \ + shr $16, %rax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %rax ; \ + shr $12, %rax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %rax ; \ + shr $8, %rax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %rax ; \ + shr $4, %rax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %rax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL + + +#define DEBUG(x) TTYS0_TX_CHAR($x) ; TTYS0_TX_CHAR($'\r') ; TTYS0_TX_CHAR($'\n') +#define DEBUG_TX_HEX32(x) TTYS0_TX_HEX32(x); TTYS0_TX_CHAR($'\r') ; TTYS0_TX_CHAR($'\n') +#define DEBUG_TX_HEX64(x) TTYS0_TX_HEX64(x); TTYS0_TX_CHAR($'\r') ; TTYS0_TX_CHAR($'\n') diff --git a/purgatory/arch/i386/include/arch/io.h b/purgatory/arch/i386/include/arch/io.h new file mode 100644 index 00000000..13ad8871 --- /dev/null +++ b/purgatory/arch/i386/include/arch/io.h @@ -0,0 +1,98 @@ +#ifndef ARCH_IO_H +#define ARCH_IO_H + +#include <stdint.h> +/* Helper functions for directly doing I/O */ + +extern inline uint8_t inb(uint16_t port) +{ + uint8_t result; + + __asm__ __volatile__ ( + "inb %w1,%0" + :"=a" (result) + :"Nd" (port)); + return result; +} + +extern inline uint16_t inw(uint16_t port) +{ + uint16_t result; + + __asm__ __volatile__ ( + "inw %w1,%0" + :"=a" (result) + :"Nd" (port)); + return result; +} + +extern inline uint32_t inl(uint32_t port) +{ + uint32_t result; + + __asm__ __volatile__ ( + "inl %w1,%0" + :"=a" (result) + :"Nd" (port)); + return result; +} + +extern inline void outb (uint8_t value, uint16_t port) +{ + __asm__ __volatile__ ( + "outb %b0,%w1" + : + :"a" (value), "Nd" (port)); +} + +extern inline void outw (uint16_t value, uint16_t port) +{ + __asm__ __volatile__ ( + "outw %w0,%w1" + : + :"a" (value), "Nd" (port)); +} + +extern inline void outl (uint32_t value, uint16_t port) +{ + __asm__ __volatile__ ( + "outl %0,%w1" + : + :"a" (value), "Nd" (port)); +} + + +/* + * readX/writeX() are used to access memory mapped devices. On some + * architectures the memory mapped IO stuff needs to be accessed + * differently. On the x86 architecture, we just read/write the + * memory location directly. + */ + +static inline unsigned char readb(const volatile void *addr) +{ + return *(volatile unsigned char *) addr; +} +static inline unsigned short readw(const volatile void *addr) +{ + return *(volatile unsigned short *) addr; +} +static inline unsigned int readl(const volatile void *addr) +{ + return *(volatile unsigned int *) addr; +} + +static inline void writeb(unsigned char b, volatile void *addr) +{ + *(volatile unsigned char *) addr = b; +} +static inline void writew(unsigned short b, volatile void *addr) +{ + *(volatile unsigned short *) addr = b; +} +static inline void writel(unsigned int b, volatile void *addr) +{ + *(volatile unsigned int *) addr = b; +} + +#endif /* ARCH_IO_H */ diff --git a/purgatory/arch/i386/include/limits.h b/purgatory/arch/i386/include/limits.h new file mode 100644 index 00000000..d5a5a02c --- /dev/null +++ b/purgatory/arch/i386/include/limits.h @@ -0,0 +1,58 @@ +#ifndef LIMITS_H +#define LIMITS_H 1 + + +/* Number of bits in a `char' */ +#define CHAR_BIT 8 + +/* Minimum and maximum values a `signed char' can hold */ +#define SCHAR_MIN (-128) +#define SCHAR_MAX 127 + +/* Maximum value an `unsigned char' can hold. (Minimum is 0.) */ +#define UCHAR_MAX 255 + +/* Minimum and maximum values a `char' can hold */ +#define CHAR_MIN SCHAR_MIN +#define CHAR_MAX SCHAR_MAX + +/* Minimum and maximum values a `signed short int' can hold */ +#define SHRT_MIN (-32768) +#define SHRT_MAX 32767 + +/* Maximum value an `unsigned short' can hold. (Minimum is 0.) */ +#define USHRT_MAX 65535 + + +/* Minimum and maximum values a `signed int' can hold */ +#define INT_MIN (-INT_MAX - 1) +#define INT_MAX 2147483647 + +/* Maximum value an `unsigned int' can hold. (Minimum is 0.) */ +#define UINT_MAX 4294967295U + + +/* Minimum and maximum values a `signed int' can hold */ +#define INT_MIN (-INT_MAX - 1) +#define INT_MAX 2147483647 + +/* Maximum value an `unsigned int' can hold. (Minimum is 0.) */ +#define UINT_MAX 4294967295U + +/* Minimum and maximum values a `signed long' can hold */ +#define LONG_MAX 2147483647L +#define LONG_MIN (-LONG_MAX - 1L) + +/* Maximum value an `unsigned long' can hold. (Minimum is 0.) */ +#define ULONG_MAX 4294967295UL + +/* Minimum and maximum values a `signed long long' can hold */ +#define LLONG_MAX 9223372036854775807LL +#define LLONG_MIN (-LONG_MAX - 1LL) + + +/* Maximum value an `unsigned long long' can hold. (Minimum is 0.) */ +#define ULLONG_MAX 18446744073709551615ULL + + +#endif /* LIMITS_H */ diff --git a/purgatory/arch/i386/include/stdint.h b/purgatory/arch/i386/include/stdint.h new file mode 100644 index 00000000..79262c20 --- /dev/null +++ b/purgatory/arch/i386/include/stdint.h @@ -0,0 +1,16 @@ +#ifndef STDINT_H +#define STDINT_H + +typedef unsigned long size_t; + +typedef unsigned char uint8_t; +typedef unsigned short uint16_t; +typedef unsigned int uint32_t; +typedef unsigned long long uint64_t; + +typedef signed char int8_t; +typedef signed short int16_t; +typedef signed int int32_t; +typedef signed long long int64_t; + +#endif /* STDINT_H */ diff --git a/purgatory/arch/i386/linux-entry16.S b/purgatory/arch/i386/linux-entry16.S new file mode 100644 index 00000000..f366a11f --- /dev/null +++ b/purgatory/arch/i386/linux-entry16.S @@ -0,0 +1,623 @@ +/* + * kexec: Linux boots Linux + * + * Copyright (C) 2003,2004 Eric Biederman (ebiederm@xmission.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation (version 2 of the License). + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#if 1 +#define TTYS0_BASE 0x3f8 +#define TTYS0_RBR (TTYS0_BASE+0x00) +#define TTYS0_TBR TTYS0_RBR +#define TTYS0_LSR (TTYS0_BASE+0x05) + + + /* uses: ax, dx */ +#define TTYS0_TX_AL \ + mov %al, %ah ; \ +9: mov $TTYS0_LSR, %dx ; \ + inb %dx, %al ; \ + test $0x20, %al ; \ + je 9b ; \ + mov $TTYS0_TBR, %dx ; \ + mov %ah, %al ; \ + outb %al, %dx ; \ +9: mov $TTYS0_LSR, %dx ; \ + inb %dx, %al ; \ + test $0x40, %al ; \ + jz 9b + + + + /* uses: ax, dx */ +#define TTYS0_TX_CHAR(byte) \ + mov byte, %al ; \ + TTYS0_TX_AL + + /* uses: ax, dx */ +#define TTYS0_TX_HEX32(lword) \ + mov lword, %eax ; \ + shr $28, %eax ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %eax ; \ + shr $24, %eax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %eax ; \ + shr $20, %eax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %eax ; \ + shr $16, %eax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %eax ; \ + shr $12, %eax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %eax ; \ + shr $8, %eax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %eax ; \ + shr $4, %eax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %eax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL + + +#define DEBUG(x) TTYS0_TX_CHAR($x) ; TTYS0_TX_CHAR($'\r') ; TTYS0_TX_CHAR($'\n') +#define DEBUG_TX_HEX32(x) TTYS0_TX_HEX32(x) ; TTYS0_TX_CHAR($'\r') ; TTYS0_TX_CHAR($'\n') +#else +#define DEBUG(x) +#define DEBUG_TX_HEX32(x) +#endif + +#undef i386 + .text + .globl entry16, entry16_regs + .arch i386 + .balign 16 +entry16: + .code32 + +DEBUG('a') + /* Setup the classic BIOS interrupt table at 0x0 */ + lidt idtptr + +DEBUG('b') + /* Provide us with 16bit segments that we can use */ + lgdt gdt + +DEBUG('c') + /* Note we don't disable the a20 line, (this shouldn't be required) + * The code to do it is in kexec_test and it is a real pain. + * I will worry about that when I need it. + */ + + /* Load 16bit data segments, to ensure the segment limits are set */ + movl $0x10, %eax + movl %eax, %ds + movl %eax, %es + movl %eax, %ss + movl %eax, %fs + movl %eax, %gs + +DEBUG('d') + + /* switch to 16bit mode */ + ljmp $0x08, $1f - entry16 +1: + .code16 +DEBUG('e') + /* Disable Paging and protected mode */ + /* clear the PG & PE bits of CR0 */ + movl %cr0,%eax + andl $~((1 << 31)|(1<<0)),%eax + movl %eax,%cr0 + +DEBUG('f') + /* make intersegment jmp to flush the processor pipeline + * and reload %cs:%eip (to clear upper 16 bits of %eip). + */ + ljmp *(realptr - entry16) +3: +DEBUG('g') + /* we are in real mode now + * set up the real mode segment registers : %ds, $ss, %es + */ + /* Setup the data segment */ + movw %cs, %ax + movw %ax, %ds + +DEBUG('h') + /* Load the registers */ + movl eax - entry16, %eax + movl ebx - entry16, %ebx + movl ecx - entry16, %ecx + movl edx - entry16, %edx + movl esi - entry16, %esi + movl edi - entry16, %esi + movl esp - entry16, %esp + movl ebp - entry16, %ebp + movw es - entry16, %es + movw ss - entry16, %ss + movw fs - entry16, %fs + movw gs - entry16, %gs + movw ds - entry16, %ds + + /* Jump to the kernel entrypoint */ + ljmp %cs:*(realdest - entry16) + + .balign 4 +entry16_regs: +eax: .long 0x00000000 +ebx: .long 0x00000000 +ecx: .long 0x00000000 +edx: .long 0x00000000 +esi: .long 0x00000000 +edi: .long 0x00000000 +esp: .long 0x00000000 +ebp: .long 0x00000000 +ds: .word 0x0000 +es: .word 0x0000 +ss: .word 0x0000 +fs: .word 0x0000 +gs: .word 0x0000 +realdest: +ip: .word 0x0000 +cs: .word 0x0000 + .size entry16_regs, . - entry16_regs + + .balign 16 +realptr: + .word 3b - entry16 + .word 0x0000 + + .data + .balign 4 + +idtptr: + /* 256 entry idt at 0 */ + .word 0x400 - 1 + .word 0, 0 + +gdt: + /* 0x00 unusable segment so used as the gdt ptr */ + .word gdt_end - gdt - 1 + .long gdt + .word 0 + + /* 0x08 16 bit real mode code segment */ + .word 0xffff, 0x0000 + .byte 0x00, 0x9b, 0x00, 0x00 + + /* 0x10 16 bit real mode data segment */ + .word 0xffff, 0x0000 + .byte 0x00, 0x93, 0x00, 0x00 +gdt_end: +/* + * kexec: Linux boots Linux + * + * Copyright (C) 2003,2004 Eric Biederman (ebiederm@xmission.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation (version 2 of the License). + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#if 1 +#define TTYS0_BASE 0x3f8 +#define TTYS0_RBR (TTYS0_BASE+0x00) +#define TTYS0_TBR TTYS0_RBR +#define TTYS0_LSR (TTYS0_BASE+0x05) + + + /* uses: ax, dx */ +#define TTYS0_TX_AL \ + mov %al, %ah ; \ +9: mov $TTYS0_LSR, %dx ; \ + inb %dx, %al ; \ + test $0x20, %al ; \ + je 9b ; \ + mov $TTYS0_TBR, %dx ; \ + mov %ah, %al ; \ + outb %al, %dx ; \ +9: mov $TTYS0_LSR, %dx ; \ + inb %dx, %al ; \ + test $0x40, %al ; \ + jz 9b + + + + /* uses: ax, dx */ +#define TTYS0_TX_CHAR(byte) \ + mov byte, %al ; \ + TTYS0_TX_AL + + /* uses: ax, dx */ +#define TTYS0_TX_HEX32(lword) \ + mov lword, %eax ; \ + shr $28, %eax ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %eax ; \ + shr $24, %eax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %eax ; \ + shr $20, %eax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %eax ; \ + shr $16, %eax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %eax ; \ + shr $12, %eax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %eax ; \ + shr $8, %eax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %eax ; \ + shr $4, %eax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %eax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL + + +#define DEBUG(x) TTYS0_TX_CHAR($x) ; TTYS0_TX_CHAR($'\r') ; TTYS0_TX_CHAR($'\n') +#define DEBUG_TX_HEX32(x) TTYS0_TX_HEX32(x) ; TTYS0_TX_CHAR($'\r') ; TTYS0_TX_CHAR($'\n') +#else +#define DEBUG(x) +#define DEBUG_TX_HEX32(x) +#endif + +.data + .globl setup16_debug_start, setup16_debug_end, setup16_debug_size, setup16_debug_align + .globl setup16_debug_regs + .globl setup16_debug_kernel_pre_protected + .globl setup16_debug_first_code32 + .globl setup16_debug_old_code32 +setup16_debug_start: +_reloc = . + .balign 16 + .code32 +DEBUG('a') + /* Compute where I am running at */ + call 1f +1: popl %ebx + subl $(1b - _reloc), %ebx + + /* Remember where I am running at */ + movl %ebx, location - _reloc(%ebx) + +DEBUG('b') + /* Fixup my real mode segment */ + movl %ebx, %eax + shrl $4, %eax + movw %ax, 2 + realptr - _reloc(%ebx) + +DEBUG('c') + /* Fixup the gdt */ + movl %ebx, %eax + shll $16, %eax + + movl %ebx, %ecx + shrl $16, %ecx + andl $0xff, %ecx + + movl %ebx, %edx + andl $0xff000000, %edx + orl %edx, %ecx + + addl %ebx, gdtaddr - _reloc(%ebx) + addl %ebx, debug_gdtaddr - _reloc(%ebx) + orl %eax, 0x08 + gdt - _reloc(%ebx) + orl %ecx, 0x0c + gdt - _reloc(%ebx) + orl %eax, 0x10 + gdt - _reloc(%ebx) + orl %ecx, 0x14 + gdt - _reloc(%ebx) + + + +DEBUG('d') + /* Setup the classic BIOS interrupt table at 0x0 */ + lidt idtptr - _reloc(%ebx) + + /* Provide us with 16bit segments that we can use */ + lgdt gdtptr - _reloc(%ebx) + + /* Note we don't disable the a20 line, (this shouldn't be required) + * The code to do it is in kexec_test and it is a real pain. + * I will worry about that when I need it. + */ + + /* Load 16bit data segments, to ensure the segment limits are set */ + movl $0x10, %eax + movl %eax, %ds + movl %eax, %es + movl %eax, %ss + movl %eax, %fs + movl %eax, %gs + + /* switch to 16bit mode */ + + ljmp $0x08, $2f - _reloc +2: + .code16 +DEBUG('e') + /* Disable Paging and protected mode */ + /* clear the PG & PE bits of CR0 */ + movl %cr0,%eax + andl $~((1 << 31)|(1<<0)),%eax + movl %eax,%cr0 + +DEBUG('f') + /* make intersegment jmp to flush the processor pipeline + * and reload %cs:%eip (to clear upper 16 bits of %eip). + */ + ljmp *(realptr - _reloc) +3: +DEBUG('g') + /* we are in real mode now + * set up the real mode segment registers : %ds, $ss, %es + */ + /* Setup the data segment */ + movw %cs, %ax + movw %ax, %ds + +DEBUG('h') + /* Load the registers */ + movl eax - _reloc, %eax + movl ebx - _reloc, %ebx + movl ecx - _reloc, %ecx + movl edx - _reloc, %edx + movl esi - _reloc, %esi + movl edi - _reloc, %esi + movl esp - _reloc, %esp + movl ebp - _reloc, %ebp + movw es - _reloc, %es + movw ss - _reloc, %ss + movw fs - _reloc, %fs + movw gs - _reloc, %gs + movw ds - _reloc, %ds + + /* Jump to the kernel entrypoint */ + ljmp %cs:*(realdest - _reloc) + +setup16_debug_regs: +eax: .long 0x00000000 +ebx: .long 0x00000000 +ecx: .long 0x00000000 +edx: .long 0x00000000 +esi: .long 0x00000000 +edi: .long 0x00000000 +esp: .long 0x00000000 +ebp: .long 0x00000000 +ds: .word 0x0000 +es: .word 0x0000 +ss: .word 0x0000 +fs: .word 0x0000 +gs: .word 0x0000 +realdest: +ip: .word 0x0000 +cs: .word 0x0000 + + .balign 16 +realptr: + .word 3b - _reloc + .word 0x0000 + +idtptr: + /* 256 entry idt at 0 */ + .word 0x400 - 1 + .word 0, 0 + +gdtptr: + .word gdt_end - gdt - 1 +gdtaddr: + .long gdt - _reloc + +gdt: + /* dummy */ + .word 0, 0, 0, 0 + + /* 16 bit real mode code segment */ + .word 0xffff, 0x0000 + .byte 0x00, 0x9b, 0x00, 0x00 + + /* 16 bit real mode data segment */ + .word 0xffff, 0x0000 + .byte 0x00, 0x93, 0x00, 0x00 +gdt_end: + +debug_gdt: + /* 0x00 */ + .word debug_gdt_end - debug_gdt - 1 +debug_gdtaddr: + .long debug_gdt - _reloc + .word 0 + + /* 0x08 */ + .word 0, 0, 0, 0 /* Nothing in the first gdt entry */ + + /* 0x10 4Gb - (0x100000*0x1000 = 4Gb), base address = 0, code read/exec, granularity = 4096, 386 */ + .word 0xFFFF, 0x00, 0x9A00, 0x00CF + /* 0x18 4Gb - (0x100000*0x1000 = 4Gb*), base address = 0, data read/write, granularity = 4096, 386 */ + .word 0xFFFF, 0x0000, 0x9200, 0x00CF + + + /* 0x20 4Gb - (0x100000*0x1000 = 4Gb), base address = 0, code read/exec, granularity = 4096, 386 */ + .word 0xFFFF, 0x00, 0x9A00, 0x00CF + /* 0x28 4Gb - (0x100000*0x1000 = 4Gb*), base address = 0, data read/write, granularity = 4096, 386 */ + .word 0xFFFF, 0x0000, 0x9200, 0x00CF + + + /* 0x30 4Gb - (0x100000*0x1000 = 4Gb), base address = 0, code read/exec, granularity = 4096, 386 */ + .word 0xFFFF, 0x00, 0x9A00, 0x00CF + /* 0x38 4Gb - (0x100000*0x1000 = 4Gb*), base address = 0, data read/write, granularity = 4096, 386 */ + .word 0xFFFF, 0x0000, 0x9200, 0x00CF + + + /* 0x40 4Gb - (0x100000*0x1000 = 4Gb), base address = 0, code read/exec, granularity = 4096, 386 */ + .word 0xFFFF, 0x00, 0x9A00, 0x00CF + /* 0x48 4Gb - (0x100000*0x1000 = 4Gb*), base address = 0, data read/write, granularity = 4096, 386 */ + .word 0xFFFF, 0x0000, 0x9200, 0x00CF + + + /* 0x50 4Gb - (0x100000*0x1000 = 4Gb), base address = 0, code read/exec, granularity = 4096, 386 */ + .word 0xFFFF, 0x00, 0x9A00, 0x00CF + /* 0x58 4Gb - (0x100000*0x1000 = 4Gb*), base address = 0, data read/write, granularity = 4096, 386 */ + .word 0xFFFF, 0x0000, 0x9200, 0x00CF + + + /* 0x60 4Gb - (0x100000*0x1000 = 4Gb), base address = 0, code read/exec, granularity = 4096, 386 */ + .word 0xFFFF, 0x00, 0x9A00, 0x00CF + /* 0x68 4Gb - (0x100000*0x1000 = 4Gb*), base address = 0, data read/write, granularity = 4096, 386 */ + .word 0xFFFF, 0x0000, 0x9200, 0x00CF +debug_gdt_end: + + +setup16_debug_kernel_pre_protected: + .code16 + DEBUG('i') + cli # no interrupts allowed ! + movb $0x80, %al # disable NMI for bootup + # sequence + outb %al, $0x70 + lret +setup16_debug_first_code32: + .code32 + .byte 0xbf /* movl $0x12345678, %edi */ +location: + .long 0x12345678 + DEBUG('j') + .byte 0xb8 /* movl $0x10000, %eax */ +setup16_debug_old_code32: + .long 0x10000 + jmp %eax +setup16_debug_end: +setup16_debug_size: + .long setup16_debug_end - setup16_debug_start +setup16_debug_align: + .long 16 diff --git a/purgatory/arch/i386/pic.c b/purgatory/arch/i386/pic.c new file mode 100644 index 00000000..1b73ea9a --- /dev/null +++ b/purgatory/arch/i386/pic.c @@ -0,0 +1,51 @@ +/* + * kexec: Linux boots Linux + * + * Copyright (C) 2003,2004 Eric Biederman (ebiederm@xmission.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation (version 2 of the License). + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ +#include <arch/io.h> +#include <purgatory.h> +#include "purgatory-x86.h" + + +void x86_setup_legacy_pic(void) +{ + /* Load the legacy dos settings into the 8259A pic */ + outb(0xff, 0x21); /* mask all of 8259A-1 */ + outb(0xff, 0xa1); /* mask all of 8259A-2 */ + + outb(0x11, 0x20); /* ICW1: select 8259A-1 init */ + outb(0x11, 0x80); /* A short delay */ + + outb(0x08, 0x21); /* ICW2: 8259A-1 IR0-7 mappend to 0x8-0xf */ + outb(0x08, 0x80); /* A short delay */ + + outb(0x01, 0x21); /* Normal 8086 auto EOI mode */ + outb(0x01, 0x80); /* A short delay */ + + outb(0x11, 0xa0); /* ICW1: select 8259A-2 init */ + outb(0x11, 0x80); /* A short delay */ + + outb(0x70, 0xa1); /* ICW2: 8259A-2 IR0-7 mappend to 0x70-0x77 */ + outb(0x70, 0x80); /* A short delay */ + + outb(0x01, 0xa1); /* Normal 8086 auto EOI mode */ + outb(0x01, 0x80); /* A short delay */ + + outb(0x00, 0x21); /* Unmask all of 8259A-1 */ + outb(0x00, 0xa1); /* Unmask all of 8259A-2 */ +} + diff --git a/purgatory/arch/i386/purgatory-x86.c b/purgatory/arch/i386/purgatory-x86.c new file mode 100644 index 00000000..442358a2 --- /dev/null +++ b/purgatory/arch/i386/purgatory-x86.c @@ -0,0 +1,40 @@ +#include <arch/io.h> +#include <purgatory.h> +#include "purgatory-x86.h" + +/* + * CPU + * ============================================================================= + */ + +void x86_setup_cpu(void) +{ +#if 0 + /* This code is only needed for old versions of the kexec kernel patch. + * While it is still a good idea doing this unconditionally breaks + * on older cpus that did not implemented cr4. + * So this code is disabled for now. If this is revisited + * I first need to detect cpuid support and then use cpuid + * to conditionally change newer cpu registers. + */ + /* clear special bits in %cr4 */ + asm volatile( + "movl %0, %%eax\n\t" + "movl %%eax, %%cr4\n\t" + : /* outputs */ + : "r" (0) + ); +#endif +} + +uint8_t reset_vga = 0; +uint8_t legacy_timer = 0; +uint8_t legacy_pic = 0; + +void setup_arch(void) +{ + x86_setup_cpu(); + if (reset_vga) x86_reset_vga(); + if (legacy_pic) x86_setup_legacy_pic(); + /* if (legacy_timer) x86_setup_legacy_timer(); */ +} diff --git a/purgatory/arch/i386/purgatory-x86.h b/purgatory/arch/i386/purgatory-x86.h new file mode 100644 index 00000000..4178b379 --- /dev/null +++ b/purgatory/arch/i386/purgatory-x86.h @@ -0,0 +1,8 @@ +#ifndef PURGATORY_X86_H +#define PURGATORY_X86_H + +void x86_reset_vga(void); +void x86_setup_legacy_pic(void); +void x86_setup_legacy_timer(void); + +#endif /* PURGATORY_X86_H */ diff --git a/purgatory/arch/i386/setup-x86.S b/purgatory/arch/i386/setup-x86.S new file mode 100644 index 00000000..f0719d4c --- /dev/null +++ b/purgatory/arch/i386/setup-x86.S @@ -0,0 +1,72 @@ +/* + * purgatory: setup code + * + * Copyright (C) 2003,2004 Eric Biederman (ebiederm@xmission.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation (version 2 of the License). + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + + +#undef i386 + + .text + .arch i386 + .globl purgatory_start +purgatory_start: + .code32 + + /* Load a gdt so I know what the segment registers are */ + lgdt %cs:gdt + + /* load the data segments */ + movl $0x08, %eax /* data segment */ + movl %eax, %ds + movl %eax, %es + movl %eax, %ss + movl %eax, %fs + movl %eax, %gs + + /* load the code segment */ + ljmp $0x10,$1f +1: + + /* Setup a stack */ + movl $lstack_end, %esp + + /* Call the C code */ + call purgatory + jmp entry32 + + .section ".rodata" + .balign 16 +gdt: + /* 0x00 unusable segment so used as the gdt ptr */ + .word gdt_end - gdt - 1 + .long gdt + .word 0 + + /* 0x8 4GB flat data segment */ + .word 0xFFFF, 0x0000, 0x9200, 0x00CF + + /* 0x10 4GB flat code segment */ + .word 0xFFFF, 0x0000, 0x9A00, 0x00CF +gdt_end: + + /* A stack for the purgatory code */ + .bss + .balign 4096 +lstack: + .skip 4096 +lstack_end: + diff --git a/purgatory/arch/i386/stack.S b/purgatory/arch/i386/stack.S new file mode 100644 index 00000000..a597b0f1 --- /dev/null +++ b/purgatory/arch/i386/stack.S @@ -0,0 +1,39 @@ +/* + * purgatory: stack + * + * Copyright (C) 2003,2004 Eric Biederman (ebiederm@xmission.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation (version 2 of the License). + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + + /* A stack for the loaded kernel. + * Seperate and in the data section so it can be prepopulated. + */ + .data + .globl stack, stack_end + .globl stack_arg32_1, stack_arg32_2, stack_arg32_3 ,stack_arg32_4 + .globl stack_arg32_5, stack_arg32_6, stack_arg32_7 ,stack_arg32_8 + .balign 4096 +stack: + .skip 4096 - (8*4) +stack_arg32_8: .long 0 ; .size stack_arg32_8, 4 +stack_arg32_7: .long 0 ; .size stack_arg32_7, 4 +stack_arg32_6: .long 0 ; .size stack_arg32_6, 4 +stack_arg32_5: .long 0 ; .size stack_arg32_5, 4 +stack_arg32_4: .long 0 ; .size stack_arg32_4, 4 +stack_arg32_3: .long 0 ; .size stack_arg32_3, 4 +stack_arg32_2: .long 0 ; .size stack_arg32_2, 4 +stack_arg32_1: .long 0 ; .size stack_arg32_1, 4 +stack_end: + diff --git a/purgatory/arch/i386/timer.c b/purgatory/arch/i386/timer.c new file mode 100644 index 00000000..dec59384 --- /dev/null +++ b/purgatory/arch/i386/timer.c @@ -0,0 +1,10 @@ +#include <arch/io.h> +#include <purgatory.h> +#include "purgatory-x86.h" + + +void x86_setup_legacy_timer(void) +{ + /* Load the legacy timer settings into the 8254 pit */ +} + diff --git a/purgatory/arch/i386/vga.c b/purgatory/arch/i386/vga.c new file mode 100644 index 00000000..effa8ff3 --- /dev/null +++ b/purgatory/arch/i386/vga.c @@ -0,0 +1,152 @@ +#include <arch/io.h> +#include <purgatory.h> +#include "purgatory-x86.h" + +/* Crudely reset a VGA card to text mode 3, by writing plausible default */ +/* values into its registers. */ +/* Tim Deegan (tjd21 at cl.cam.ac.uk), March 2003 */ +/* Based on Keir Fraser's start-of-day reset code from the Xen hypervisor */ +/* Converted from Assembly 20 December 2004 -- Eric Biederman */ + +void x86_reset_vga(void) +{ + /* Hello */ + inb(0x3da); + outb(0, 0x3c0); + + /* Sequencer registers */ + outw(0x0300, 0x3c4); + outw(0x0001, 0x3c4); + outw(0x0302, 0x3c4); + outw(0x0003, 0x3c4); + outw(0x0204, 0x3c4); + + /* Ensure CRTC regs 0-7 are unlocked by clearing bit 7 of CRTC[17] */ + outw(0x0e11, 0x3d4); + /* CRTC registers */ + outw(0x5f00, 0x3d4); + outw(0x4f01, 0x3d4); + outw(0x5002, 0x3d4); + outw(0x8203, 0x3d4); + outw(0x5504, 0x3d4); + outw(0x8105, 0x3d4); + outw(0xbf06, 0x3d4); + outw(0x1f07, 0x3d4); + outw(0x0008, 0x3d4); + outw(0x4f09, 0x3d4); + outw(0x200a, 0x3d4); + outw(0x0e0b, 0x3d4); + outw(0x000c, 0x3d4); + outw(0x000d, 0x3d4); + outw(0x010e, 0x3d4); + outw(0xe00f, 0x3d4); + outw(0x9c10, 0x3d4); + outw(0x8e11, 0x3d4); + outw(0x8f12, 0x3d4); + outw(0x2813, 0x3d4); + outw(0x1f14, 0x3d4); + outw(0x9615, 0x3d4); + outw(0xb916, 0x3d4); + outw(0xa317, 0x3d4); + outw(0xff18, 0x3d4); + + /* Graphic registers */ + outw(0x0000, 0x3ce); + outw(0x0001, 0x3ce); + outw(0x0002, 0x3ce); + outw(0x0003, 0x3ce); + outw(0x0004, 0x3ce); + outw(0x1005, 0x3ce); + outw(0x0e06, 0x3ce); + outw(0x0007, 0x3ce); + outw(0xff08, 0x3ce); + + /* Attribute registers */ + inb(0x3da); + outb(0x00, 0x3c0); + outb(0x00, 0x3c0); + + inb(0x3da); + outb(0x01, 0x3c0); + outb(0x01, 0x3c0); + + inb(0x3da); + outb(0x02, 0x3c0); + outb(0x02, 0x3c0); + + inb(0x3da); + outb(0x03, 0x3c0); + outb(0x03, 0x3c0); + + inb(0x3da); + outb(0x04, 0x3c0); + outb(0x04, 0x3c0); + + inb(0x3da); + outb(0x05, 0x3c0); + outb(0x05, 0x3c0); + + inb(0x3da); + outb(0x06, 0x3c0); + outb(0x14, 0x3c0); + + inb(0x3da); + outb(0x07, 0x3c0); + outb(0x07, 0x3c0); + + inb(0x3da); + outb(0x08, 0x3c0); + outb(0x38, 0x3c0); + + inb(0x3da); + outb(0x09, 0x3c0); + outb(0x39, 0x3c0); + + inb(0x3da); + outb(0x0a, 0x3c0); + outb(0x3a, 0x3c0); + + inb(0x3da); + outb(0x0b, 0x3c0); + outb(0x3b, 0x3c0); + + inb(0x3da); + outb(0x0c, 0x3c0); + outb(0x3c, 0x3c0); + + inb(0x3da); + outb(0x0d, 0x3c0); + outb(0x3d, 0x3c0); + + inb(0x3da); + outb(0x0e, 0x3c0); + outb(0x3e, 0x3c0); + + inb(0x3da); + outb(0x0f, 0x3c0); + outb(0x3f, 0x3c0); + + inb(0x3da); + outb(0x10, 0x3c0); + outb(0x0c, 0x3c0); + + inb(0x3da); + outb(0x11, 0x3c0); + outb(0x00, 0x3c0); + + inb(0x3da); + outb(0x12, 0x3c0); + outb(0x0f, 0x3c0); + + inb(0x3da); + outb(0x13, 0x3c0); + outb(0x08, 0x3c0); + + inb(0x3da); + outb(0x14, 0x3c0); + outb(0x00, 0x3c0); + + /* Goodbye */ + inb(0x3da); + outb(0x20, 0x3c0); +} diff --git a/purgatory/arch/ia64/Makefile b/purgatory/arch/ia64/Makefile new file mode 100644 index 00000000..8ba596ee --- /dev/null +++ b/purgatory/arch/ia64/Makefile @@ -0,0 +1,9 @@ +# +# Purgatory ia64 +# + +PURGATORY_S_SRCS+= +PURGATORY_C_SRCS+= purgatory/arch/ia64/purgatory-ia64.c +PURGATORY_C_SRCS+= purgatory/arch/ia64/console-ia64.c +PURGATORY_C_SRCS+= + diff --git a/purgatory/arch/ia64/console-ia64.c b/purgatory/arch/ia64/console-ia64.c new file mode 100644 index 00000000..389b7be0 --- /dev/null +++ b/purgatory/arch/ia64/console-ia64.c @@ -0,0 +1,5 @@ +#include <purgatory.h> +void putchar(int ch) +{ + /* Nothing for now */ +} diff --git a/purgatory/arch/ia64/include/limits.h b/purgatory/arch/ia64/include/limits.h new file mode 100644 index 00000000..0c6f21f9 --- /dev/null +++ b/purgatory/arch/ia64/include/limits.h @@ -0,0 +1,57 @@ +#ifndef LIMITS_H +#define LIMITS_H 1 + +/* Number of bits in a `char' */ +#define CHAR_BIT 8 + +/* Minimum and maximum values a `signed char' can hold */ +#define SCHAR_MIN (-128) +#define SCHAR_MAX 127 + +/* Maximum value an `unsigned char' can hold. (Minimum is 0.) */ +#define UCHAR_MAX 255 + +/* Minimum and maximum values a `char' can hold */ +#define CHAR_MIN SCHAR_MIN +#define CHAR_MAX SCHAR_MAX + +/* Minimum and maximum values a `signed short int' can hold */ +#define SHRT_MIN (-32768) +#define SHRT_MAX 32767 + +/* Maximum value an `unsigned short' can hold. (Minimum is 0.) */ +#define USHRT_MAX 65535 + + +/* Minimum and maximum values a `signed int' can hold */ +#define INT_MIN (-INT_MAX - 1) +#define INT_MAX 2147483647 + +/* Maximum value an `unsigned int' can hold. (Minimum is 0.) */ +#define UINT_MAX 4294967295U + + +/* Minimum and maximum values a `signed int' can hold */ +#define INT_MIN (-INT_MAX - 1) +#define INT_MAX 2147483647 + +/* Maximum value an `unsigned int' can hold. (Minimum is 0.) */ +#define UINT_MAX 4294967295U + +/* Minimum and maximum values a `signed long' can hold */ +#define LONG_MAX 9223372036854775807L +#define LONG_MIN (-LONG_MAX - 1L) + +/* Maximum value an `unsigned long' can hold. (Minimum is 0.) */ +#define ULONG_MAX 18446744073709551615UL + +/* Minimum and maximum values a `signed long long' can hold */ +#define LLONG_MAX 9223372036854775807LL +#define LLONG_MIN (-LONG_MAX - 1LL) + + +/* Maximum value an `unsigned long long' can hold. (Minimum is 0.) */ +#define ULLONG_MAX 18446744073709551615ULL + + +#endif /* LIMITS_H */ diff --git a/purgatory/arch/ia64/include/stdint.h b/purgatory/arch/ia64/include/stdint.h new file mode 100644 index 00000000..2f9c592c --- /dev/null +++ b/purgatory/arch/ia64/include/stdint.h @@ -0,0 +1,16 @@ +#ifndef STDINT_H +#define STDINT_H + +typedef unsigned long size_t; + +typedef unsigned char uint8_t; +typedef unsigned short uint16_t; +typedef unsigned int uint32_t; +typedef unsigned long uint64_t; + +typedef signed char int8_t; +typedef signed short int16_t; +typedef signed int int32_t; +typedef signed long int64_t; + +#endif /* STDINT_H */ diff --git a/purgatory/arch/ia64/purgatory-ia64.c b/purgatory/arch/ia64/purgatory-ia64.c new file mode 100644 index 00000000..c10cbeaf --- /dev/null +++ b/purgatory/arch/ia64/purgatory-ia64.c @@ -0,0 +1,7 @@ +#include <purgatory.h> +#include "purgatory-ia64.h" + +void setup_arch(void) +{ + /* Nothing for now */ +} diff --git a/purgatory/arch/ia64/purgatory-ia64.h b/purgatory/arch/ia64/purgatory-ia64.h new file mode 100644 index 00000000..773e3c00 --- /dev/null +++ b/purgatory/arch/ia64/purgatory-ia64.h @@ -0,0 +1,6 @@ +#ifndef PURGATORY_IA64_H +#define PURGATORY_IA64_H + +/* nothing yet */ + +#endif /* PURGATORY_IA64_H */ diff --git a/purgatory/arch/ppc/Makefile b/purgatory/arch/ppc/Makefile new file mode 100644 index 00000000..4ce40fea --- /dev/null +++ b/purgatory/arch/ppc/Makefile @@ -0,0 +1,8 @@ +# +# Purgatory ppc +# + +PURGATORY_S_SRCS+= purgatory/arch/ppc/misc.S +PURGATORY_C_SRCS+= purgatory/arch/ppc/purgatory-ppc.c +PURGATORY_C_SRCS+= purgatory/arch/ppc/console-ppc.c + diff --git a/purgatory/arch/ppc/console-ppc.c b/purgatory/arch/ppc/console-ppc.c new file mode 100644 index 00000000..389b7be0 --- /dev/null +++ b/purgatory/arch/ppc/console-ppc.c @@ -0,0 +1,5 @@ +#include <purgatory.h> +void putchar(int ch) +{ + /* Nothing for now */ +} diff --git a/purgatory/arch/ppc/include/limits.h b/purgatory/arch/ppc/include/limits.h new file mode 100644 index 00000000..d5a5a02c --- /dev/null +++ b/purgatory/arch/ppc/include/limits.h @@ -0,0 +1,58 @@ +#ifndef LIMITS_H +#define LIMITS_H 1 + + +/* Number of bits in a `char' */ +#define CHAR_BIT 8 + +/* Minimum and maximum values a `signed char' can hold */ +#define SCHAR_MIN (-128) +#define SCHAR_MAX 127 + +/* Maximum value an `unsigned char' can hold. (Minimum is 0.) */ +#define UCHAR_MAX 255 + +/* Minimum and maximum values a `char' can hold */ +#define CHAR_MIN SCHAR_MIN +#define CHAR_MAX SCHAR_MAX + +/* Minimum and maximum values a `signed short int' can hold */ +#define SHRT_MIN (-32768) +#define SHRT_MAX 32767 + +/* Maximum value an `unsigned short' can hold. (Minimum is 0.) */ +#define USHRT_MAX 65535 + + +/* Minimum and maximum values a `signed int' can hold */ +#define INT_MIN (-INT_MAX - 1) +#define INT_MAX 2147483647 + +/* Maximum value an `unsigned int' can hold. (Minimum is 0.) */ +#define UINT_MAX 4294967295U + + +/* Minimum and maximum values a `signed int' can hold */ +#define INT_MIN (-INT_MAX - 1) +#define INT_MAX 2147483647 + +/* Maximum value an `unsigned int' can hold. (Minimum is 0.) */ +#define UINT_MAX 4294967295U + +/* Minimum and maximum values a `signed long' can hold */ +#define LONG_MAX 2147483647L +#define LONG_MIN (-LONG_MAX - 1L) + +/* Maximum value an `unsigned long' can hold. (Minimum is 0.) */ +#define ULONG_MAX 4294967295UL + +/* Minimum and maximum values a `signed long long' can hold */ +#define LLONG_MAX 9223372036854775807LL +#define LLONG_MIN (-LONG_MAX - 1LL) + + +/* Maximum value an `unsigned long long' can hold. (Minimum is 0.) */ +#define ULLONG_MAX 18446744073709551615ULL + + +#endif /* LIMITS_H */ diff --git a/purgatory/arch/ppc/include/stdint.h b/purgatory/arch/ppc/include/stdint.h new file mode 100644 index 00000000..79262c20 --- /dev/null +++ b/purgatory/arch/ppc/include/stdint.h @@ -0,0 +1,16 @@ +#ifndef STDINT_H +#define STDINT_H + +typedef unsigned long size_t; + +typedef unsigned char uint8_t; +typedef unsigned short uint16_t; +typedef unsigned int uint32_t; +typedef unsigned long long uint64_t; + +typedef signed char int8_t; +typedef signed short int16_t; +typedef signed int int32_t; +typedef signed long long int64_t; + +#endif /* STDINT_H */ diff --git a/purgatory/arch/ppc/misc.S b/purgatory/arch/ppc/misc.S new file mode 100644 index 00000000..b0a54860 --- /dev/null +++ b/purgatory/arch/ppc/misc.S @@ -0,0 +1,72 @@ +/* + * This file contains miscellaneous low-level functions. + * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) + * + * Largely rewritten by Cort Dougan (cort@cs.nmt.edu) + * and Paul Mackerras. + * + * Rewrittten to work with /sbin/kexec 20 December 2004 Eric Biederman + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + */ + +#include "ppc_asm.h" + + .text + +/* + * Extended precision shifts. + * + * Updated to be valid for shift counts from 0 to 63 inclusive. + * -- Gabriel + * + * R3/R4 has 64 bit value + * R5 has shift count + * result in R3/R4 + * + * ashrdi3: arithmetic right shift (sign propagation) + * lshrdi3: logical right shift + * ashldi3: left shift + */ + .globl __ashrdi3 +__ashrdi3: + subfic r6,r5,32 + srw r4,r4,r5 # LSW = count > 31 ? 0 : LSW >> count + addi r7,r5,32 # could be xori, or addi with -32 + slw r6,r3,r6 # t1 = count > 31 ? 0 : MSW << (32-count) + rlwinm r8,r7,0,32 # t3 = (count < 32) ? 32 : 0 + sraw r7,r3,r7 # t2 = MSW >> (count-32) + or r4,r4,r6 # LSW |= t1 + slw r7,r7,r8 # t2 = (count < 32) ? 0 : t2 + sraw r3,r3,r5 # MSW = MSW >> count + or r4,r4,r7 # LSW |= t2 + blr + + .globl __ashldi3 +__ashldi3: + subfic r6,r5,32 + slw r3,r3,r5 # MSW = count > 31 ? 0 : MSW << count + addi r7,r5,32 # could be xori, or addi with -32 + srw r6,r4,r6 # t1 = count > 31 ? 0 : LSW >> (32-count) + slw r7,r4,r7 # t2 = count < 32 ? 0 : LSW << (count-32) + or r3,r3,r6 # MSW |= t1 + slw r4,r4,r5 # LSW = LSW << count + or r3,r3,r7 # MSW |= t2 + blr + + .globl __lshrdi3 +__lshrdi3: + subfic r6,r5,32 + srw r4,r4,r5 # LSW = count > 31 ? 0 : LSW >> count + addi r7,r5,32 # could be xori, or addi with -32 + slw r6,r3,r6 # t1 = count > 31 ? 0 : MSW << (32-count) + srw r7,r3,r7 # t2 = count < 32 ? 0 : MSW >> (count-32) + or r4,r4,r6 # LSW |= t1 + srw r3,r3,r5 # MSW = MSW >> count + or r4,r4,r7 # LSW |= t2 + blr + diff --git a/purgatory/arch/ppc/ppc_asm.h b/purgatory/arch/ppc/ppc_asm.h new file mode 100644 index 00000000..36503a90 --- /dev/null +++ b/purgatory/arch/ppc/ppc_asm.h @@ -0,0 +1,506 @@ +/* + * ppc_asm.h - mainly bits stolen from Linux kernel asm/reg.h and asm/ppc_asm.h + * + * This source code is licensed under the GNU General Public License, + * Version 2. See the file COPYING for more details. + */ + +/* Condition Register Bit Fields */ + +#define cr0 0 +#define cr1 1 +#define cr2 2 +#define cr3 3 +#define cr4 4 +#define cr5 5 +#define cr6 6 +#define cr7 7 + + +/* General Purpose Registers (GPRs) */ + +#define r0 0 +#define r1 1 +#define r2 2 +#define r3 3 +#define r4 4 +#define r5 5 +#define r6 6 +#define r7 7 +#define r8 8 +#define r9 9 +#define r10 10 +#define r11 11 +#define r12 12 +#define r13 13 +#define r14 14 +#define r15 15 +#define r16 16 +#define r17 17 +#define r18 18 +#define r19 19 +#define r20 20 +#define r21 21 +#define r22 22 +#define r23 23 +#define r24 24 +#define r25 25 +#define r26 26 +#define r27 27 +#define r28 28 +#define r29 29 +#define r30 30 +#define r31 31 + +/* Machine State Register (MSR) Fields */ +#define MSR_SF (1<<63) +#define MSR_ISF (1<<61) +#define MSR_VEC (1<<25) /* Enable AltiVec */ +#define MSR_POW (1<<18) /* Enable Power Management */ +#define MSR_WE (1<<18) /* Wait State Enable */ +#define MSR_TGPR (1<<17) /* TLB Update registers in use */ +#define MSR_CE (1<<17) /* Critical Interrupt Enable */ +#define MSR_ILE (1<<16) /* Interrupt Little Endian */ +#define MSR_EE (1<<15) /* External Interrupt Enable */ +#define MSR_PR (1<<14) /* Problem State / Privilege Level */ +#define MSR_FP (1<<13) /* Floating Point enable */ +#define MSR_ME (1<<12) /* Machine Check Enable */ +#define MSR_FE0 (1<<11) /* Floating Exception mode 0 */ +#define MSR_SE (1<<10) /* Single Step */ +#define MSR_BE (1<<9) /* Branch Trace */ +#define MSR_DE (1<<9) /* Debug Exception Enable */ +#define MSR_FE1 (1<<8) /* Floating Exception mode 1 */ +#define MSR_IP (1<<6) /* Exception prefix 0x000/0xFFF */ +#define MSR_IR (1<<5) /* Instruction Relocate */ +#define MSR_DR (1<<4) /* Data Relocate */ +#define MSR_PE (1<<3) /* Protection Enable */ +#define MSR_PX (1<<2) /* Protection Exclusive Mode */ +#define MSR_RI (1<<1) /* Recoverable Exception */ +#define MSR_LE (1<<0) /* Little Endian */ + +/* Special Purpose Registers (SPRNs)*/ +#define SPRN_CTR 0x009 /* Count Register */ +#define SPRN_DABR 0x3F5 /* Data Address Breakpoint Register */ +#define SPRN_DAR 0x013 /* Data Address Register */ +#define SPRN_TBRL 0x10C /* Time Base Read Lower Register (user, R/O) */ +#define SPRN_TBRU 0x10D /* Time Base Read Upper Register (user, R/O) */ +#define SPRN_TBWL 0x11C /* Time Base Lower Register (super, R/W) */ +#define SPRN_TBWU 0x11D /* Time Base Upper Register (super, R/W) */ +#define SPRN_HIOR 0x137 /* 970 Hypervisor interrupt offset */ +#define SPRN_DBAT0L 0x219 /* Data BAT 0 Lower Register */ +#define SPRN_DBAT0U 0x218 /* Data BAT 0 Upper Register */ +#define SPRN_DBAT1L 0x21B /* Data BAT 1 Lower Register */ +#define SPRN_DBAT1U 0x21A /* Data BAT 1 Upper Register */ +#define SPRN_DBAT2L 0x21D /* Data BAT 2 Lower Register */ +#define SPRN_DBAT2U 0x21C /* Data BAT 2 Upper Register */ +#define SPRN_DBAT3L 0x21F /* Data BAT 3 Lower Register */ +#define SPRN_DBAT3U 0x21E /* Data BAT 3 Upper Register */ +#define SPRN_DBAT4L 0x239 /* Data BAT 4 Lower Register */ +#define SPRN_DBAT4U 0x238 /* Data BAT 4 Upper Register */ +#define SPRN_DBAT5L 0x23B /* Data BAT 5 Lower Register */ +#define SPRN_DBAT5U 0x23A /* Data BAT 5 Upper Register */ +#define SPRN_DBAT6L 0x23D /* Data BAT 6 Lower Register */ +#define SPRN_DBAT6U 0x23C /* Data BAT 6 Upper Register */ +#define SPRN_DBAT7L 0x23F /* Data BAT 7 Lower Register */ +#define SPRN_DBAT7U 0x23E /* Data BAT 7 Upper Register */ + +#define SPRN_DEC 0x016 /* Decrement Register */ +#define SPRN_DER 0x095 /* Debug Enable Regsiter */ +#define DER_RSTE 0x40000000 /* Reset Interrupt */ +#define DER_CHSTPE 0x20000000 /* Check Stop */ +#define DER_MCIE 0x10000000 /* Machine Check Interrupt */ +#define DER_EXTIE 0x02000000 /* External Interrupt */ +#define DER_ALIE 0x01000000 /* Alignment Interrupt */ +#define DER_PRIE 0x00800000 /* Program Interrupt */ +#define DER_FPUVIE 0x00400000 /* FP Unavailable Interrupt */ +#define DER_DECIE 0x00200000 /* Decrementer Interrupt */ +#define DER_SYSIE 0x00040000 /* System Call Interrupt */ +#define DER_TRE 0x00020000 /* Trace Interrupt */ +#define DER_SEIE 0x00004000 /* FP SW Emulation Interrupt */ +#define DER_ITLBMSE 0x00002000 /* Imp. Spec. Instruction TLB Miss */ +#define DER_ITLBERE 0x00001000 /* Imp. Spec. Instruction TLB Error */ +#define DER_DTLBMSE 0x00000800 /* Imp. Spec. Data TLB Miss */ +#define DER_DTLBERE 0x00000400 /* Imp. Spec. Data TLB Error */ +#define DER_LBRKE 0x00000008 /* Load/Store Breakpoint Interrupt */ +#define DER_IBRKE 0x00000004 /* Instruction Breakpoint Interrupt */ +#define DER_EBRKE 0x00000002 /* External Breakpoint Interrupt */ +#define DER_DPIE 0x00000001 /* Dev. Port Nonmaskable Request */ +#define SPRN_DMISS 0x3D0 /* Data TLB Miss Register */ +#define SPRN_DSISR 0x012 /* Data Storage Interrupt Status Register */ +#define SPRN_EAR 0x11A /* External Address Register */ +#define SPRN_HASH1 0x3D2 /* Primary Hash Address Register */ +#define SPRN_HASH2 0x3D3 /* Secondary Hash Address Resgister */ +#define SPRN_HID0 0x3F0 /* Hardware Implementation Register 0 */ +#define HID0_EMCP (1<<31) /* Enable Machine Check pin */ +#define HID0_EBA (1<<29) /* Enable Bus Address Parity */ +#define HID0_EBD (1<<28) /* Enable Bus Data Parity */ +#define HID0_SBCLK (1<<27) +#define HID0_EICE (1<<26) +#define HID0_TBEN (1<<26) /* Timebase enable - 745x */ +#define HID0_ECLK (1<<25) +#define HID0_PAR (1<<24) +#define HID0_STEN (1<<24) /* Software table search enable - 745x */ +#define HID0_HIGH_BAT (1<<23) /* Enable high BATs - 7455 */ +#define HID0_DOZE (1<<23) +#define HID0_NAP (1<<22) +#define HID0_SLEEP (1<<21) +#define HID0_DPM (1<<20) +#define HID0_BHTCLR (1<<18) /* Clear branch history table - 7450 */ +#define HID0_XAEN (1<<17) /* Extended addressing enable - 7450 */ +#define HID0_NHR (1<<16) /* Not hard reset (software bit-7450)*/ +#define HID0_ICE (1<<15) /* Instruction Cache Enable */ +#define HID0_DCE (1<<14) /* Data Cache Enable */ +#define HID0_ILOCK (1<<13) /* Instruction Cache Lock */ +#define HID0_DLOCK (1<<12) /* Data Cache Lock */ +#define HID0_ICFI (1<<11) /* Instr. Cache Flash Invalidate */ +#define HID0_DCI (1<<10) /* Data Cache Invalidate */ +#define HID0_SPD (1<<9) /* Speculative disable */ +#define HID0_SGE (1<<7) /* Store Gathering Enable */ +#define HID0_SIED (1<<7) /* Serial Instr. Execution [Disable] */ +#define HID0_DFCA (1<<6) /* Data Cache Flush Assist */ +#define HID0_LRSTK (1<<4) /* Link register stack - 745x */ +#define HID0_BTIC (1<<5) /* Branch Target Instr Cache Enable */ +#define HID0_ABE (1<<3) /* Address Broadcast Enable */ +#define HID0_FOLD (1<<3) /* Branch Folding enable - 745x */ +#define HID0_BHTE (1<<2) /* Branch History Table Enable */ +#define HID0_BTCD (1<<1) /* Branch target cache disable */ +#define HID0_NOPDST (1<<1) /* No-op dst, dstt, etc. instr. */ +#define HID0_NOPTI (1<<0) /* No-op dcbt and dcbst instr. */ + +#define SPRN_HID1 0x3F1 /* Hardware Implementation Register 1 */ +#define HID1_EMCP (1<<31) /* 7450 Machine Check Pin Enable */ +#define HID1_PC0 (1<<16) /* 7450 PLL_CFG[0] */ +#define HID1_PC1 (1<<15) /* 7450 PLL_CFG[1] */ +#define HID1_PC2 (1<<14) /* 7450 PLL_CFG[2] */ +#define HID1_PC3 (1<<13) /* 7450 PLL_CFG[3] */ +#define HID1_SYNCBE (1<<11) /* 7450 ABE for sync, eieio */ +#define HID1_ABE (1<<10) /* 7450 Address Broadcast Enable */ +#define SPRN_HID2 0x3F8 /* Hardware Implementation Register 2 */ +#define SPRN_IABR 0x3F2 /* Instruction Address Breakpoint Register */ +#define SPRN_HID4 0x3F4 /* 970 HID4 */ +#define SPRN_HID5 0x3F6 /* 970 HID5 */ +#if !defined(SPRN_IAC1) && !defined(SPRN_IAC2) +#define SPRN_IAC1 0x3F4 /* Instruction Address Compare 1 */ +#define SPRN_IAC2 0x3F5 /* Instruction Address Compare 2 */ +#endif +#define SPRN_IBAT0L 0x211 /* Instruction BAT 0 Lower Register */ +#define SPRN_IBAT0U 0x210 /* Instruction BAT 0 Upper Register */ +#define SPRN_IBAT1L 0x213 /* Instruction BAT 1 Lower Register */ +#define SPRN_IBAT1U 0x212 /* Instruction BAT 1 Upper Register */ +#define SPRN_IBAT2L 0x215 /* Instruction BAT 2 Lower Register */ +#define SPRN_IBAT2U 0x214 /* Instruction BAT 2 Upper Register */ +#define SPRN_IBAT3L 0x217 /* Instruction BAT 3 Lower Register */ +#define SPRN_IBAT3U 0x216 /* Instruction BAT 3 Upper Register */ +#define SPRN_IBAT4L 0x231 /* Instruction BAT 4 Lower Register */ +#define SPRN_IBAT4U 0x230 /* Instruction BAT 4 Upper Register */ +#define SPRN_IBAT5L 0x233 /* Instruction BAT 5 Lower Register */ +#define SPRN_IBAT5U 0x232 /* Instruction BAT 5 Upper Register */ +#define SPRN_IBAT6L 0x235 /* Instruction BAT 6 Lower Register */ +#define SPRN_IBAT6U 0x234 /* Instruction BAT 6 Upper Register */ +#define SPRN_IBAT7L 0x237 /* Instruction BAT 7 Lower Register */ +#define SPRN_IBAT7U 0x236 /* Instruction BAT 7 Upper Register */ +#define SPRN_ICMP 0x3D5 /* Instruction TLB Compare Register */ +#define SPRN_ICTC 0x3FB /* Instruction Cache Throttling Control Reg */ +#define SPRN_ICTRL 0x3F3 /* 1011 7450 icache and interrupt ctrl */ +#define ICTRL_EICE 0x08000000 /* enable icache parity errs */ +#define ICTRL_EDC 0x04000000 /* enable dcache parity errs */ +#define ICTRL_EICP 0x00000100 /* enable icache par. check */ +#define SPRN_IMISS 0x3D4 /* Instruction TLB Miss Register */ +#define SPRN_IMMR 0x27E /* Internal Memory Map Register */ +#define SPRN_L2CR 0x3F9 /* Level 2 Cache Control Regsiter */ +#define SPRN_L2CR2 0x3f8 +#define L2CR_L2E 0x80000000 /* L2 enable */ +#define L2CR_L2PE 0x40000000 /* L2 parity enable */ +#define L2CR_L2SIZ_MASK 0x30000000 /* L2 size mask */ +#define L2CR_L2SIZ_256KB 0x10000000 /* L2 size 256KB */ +#define L2CR_L2SIZ_512KB 0x20000000 /* L2 size 512KB */ +#define L2CR_L2SIZ_1MB 0x30000000 /* L2 size 1MB */ +#define L2CR_L2CLK_MASK 0x0e000000 /* L2 clock mask */ +#define L2CR_L2CLK_DISABLED 0x00000000 /* L2 clock disabled */ +#define L2CR_L2CLK_DIV1 0x02000000 /* L2 clock / 1 */ +#define L2CR_L2CLK_DIV1_5 0x04000000 /* L2 clock / 1.5 */ +#define L2CR_L2CLK_DIV2 0x08000000 /* L2 clock / 2 */ +#define L2CR_L2CLK_DIV2_5 0x0a000000 /* L2 clock / 2.5 */ +#define L2CR_L2CLK_DIV3 0x0c000000 /* L2 clock / 3 */ +#define L2CR_L2RAM_MASK 0x01800000 /* L2 RAM type mask */ +#define L2CR_L2RAM_FLOW 0x00000000 /* L2 RAM flow through */ +#define L2CR_L2RAM_PIPE 0x01000000 /* L2 RAM pipelined */ +#define L2CR_L2RAM_PIPE_LW 0x01800000 /* L2 RAM pipelined latewr */ +#define L2CR_L2DO 0x00400000 /* L2 data only */ +#define L2CR_L2I 0x00200000 /* L2 global invalidate */ +#define L2CR_L2CTL 0x00100000 /* L2 RAM control */ +#define L2CR_L2WT 0x00080000 /* L2 write-through */ +#define L2CR_L2TS 0x00040000 /* L2 test support */ +#define L2CR_L2OH_MASK 0x00030000 /* L2 output hold mask */ +#define L2CR_L2OH_0_5 0x00000000 /* L2 output hold 0.5 ns */ +#define L2CR_L2OH_1_0 0x00010000 /* L2 output hold 1.0 ns */ +#define L2CR_L2SL 0x00008000 /* L2 DLL slow */ +#define L2CR_L2DF 0x00004000 /* L2 differential clock */ +#define L2CR_L2BYP 0x00002000 /* L2 DLL bypass */ +#define L2CR_L2IP 0x00000001 /* L2 GI in progress */ +#define SPRN_L3CR 0x3FA /* Level 3 Cache Control Regsiter */ +#define L3CR_L3E 0x80000000 /* L3 enable */ +#define L3CR_L3PE 0x40000000 /* L3 data parity enable */ +#define L3CR_L3APE 0x20000000 /* L3 addr parity enable */ +#define L3CR_L3SIZ 0x10000000 /* L3 size */ +#define L3CR_L3CLKEN 0x08000000 /* L3 clock enable */ +#define L3CR_L3RES 0x04000000 /* L3 special reserved bit */ +#define L3CR_L3CLKDIV 0x03800000 /* L3 clock divisor */ +#define L3CR_L3IO 0x00400000 /* L3 instruction only */ +#define L3CR_L3SPO 0x00040000 /* L3 sample point override */ +#define L3CR_L3CKSP 0x00030000 /* L3 clock sample point */ +#define L3CR_L3PSP 0x0000e000 /* L3 P-clock sample point */ +#define L3CR_L3REP 0x00001000 /* L3 replacement algorithm */ +#define L3CR_L3HWF 0x00000800 /* L3 hardware flush */ +#define L3CR_L3I 0x00000400 /* L3 global invalidate */ +#define L3CR_L3RT 0x00000300 /* L3 SRAM type */ +#define L3CR_L3NIRCA 0x00000080 /* L3 non-integer ratio clock adj. */ +#define L3CR_L3DO 0x00000040 /* L3 data only mode */ +#define L3CR_PMEN 0x00000004 /* L3 private memory enable */ +#define L3CR_PMSIZ 0x00000001 /* L3 private memory size */ +#define SPRN_MSSCR0 0x3f6 /* Memory Subsystem Control Register 0 */ +#define SPRN_MSSSR0 0x3f7 /* Memory Subsystem Status Register 1 */ +#define SPRN_LDSTCR 0x3f8 /* Load/Store control register */ +#define SPRN_LDSTDB 0x3f4 /* */ +#define SPRN_LR 0x008 /* Link Register */ +#define SPRN_MMCR0 0x3B8 /* Monitor Mode Control Register 0 */ +#define SPRN_MMCR1 0x3BC /* Monitor Mode Control Register 1 */ +#ifndef SPRN_PIR +#define SPRN_PIR 0x3FF /* Processor Identification Register */ +#endif +#define SPRN_PMC1 0x3B9 /* Performance Counter Register 1 */ +#define SPRN_PMC2 0x3BA /* Performance Counter Register 2 */ +#define SPRN_PMC3 0x3BD /* Performance Counter Register 3 */ +#define SPRN_PMC4 0x3BE /* Performance Counter Register 4 */ +#define SPRN_PTEHI 0x3D5 /* 981 7450 PTE HI word (S/W TLB load) */ +#define SPRN_PTELO 0x3D6 /* 982 7450 PTE LO word (S/W TLB load) */ +#define SPRN_PVR 0x11F /* Processor Version Register */ +#define SPRN_RPA 0x3D6 /* Required Physical Address Register */ +#define SPRN_SDA 0x3BF /* Sampled Data Address Register */ +#define SPRN_SDR1 0x019 /* MMU Hash Base Register */ +#define SPRN_SIA 0x3BB /* Sampled Instruction Address Register */ +#define SPRN_SPRG0 0x110 /* Special Purpose Register General 0 */ +#define SPRN_SPRG1 0x111 /* Special Purpose Register General 1 */ +#define SPRN_SPRG2 0x112 /* Special Purpose Register General 2 */ +#define SPRN_SPRG3 0x113 /* Special Purpose Register General 3 */ +#define SPRN_SPRG4 0x114 /* Special Purpose Register General 4 */ +#define SPRN_SPRG5 0x115 /* Special Purpose Register General 5 */ +#define SPRN_SPRG6 0x116 /* Special Purpose Register General 6 */ +#define SPRN_SPRG7 0x117 /* Special Purpose Register General 7 */ +#define SPRN_SRR0 0x01A /* Save/Restore Register 0 */ +#define SPRN_SRR1 0x01B /* Save/Restore Register 1 */ +#define SPRN_THRM1 0x3FC /* Thermal Management Register 1 */ +/* these bits were defined in inverted endian sense originally, ugh, confusing */ +#define THRM1_TIN (1 << 31) +#define THRM1_TIV (1 << 30) +#define THRM1_THRES(x) ((x&0x7f)<<23) +#define THRM3_SITV(x) ((x&0x3fff)<<1) +#define THRM1_TID (1<<2) +#define THRM1_TIE (1<<1) +#define THRM1_V (1<<0) +#define SPRN_THRM2 0x3FD /* Thermal Management Register 2 */ +#define SPRN_THRM3 0x3FE /* Thermal Management Register 3 */ +#define THRM3_E (1<<0) +#define SPRN_TLBMISS 0x3D4 /* 980 7450 TLB Miss Register */ +#define SPRN_UMMCR0 0x3A8 /* User Monitor Mode Control Register 0 */ +#define SPRN_UMMCR1 0x3AC /* User Monitor Mode Control Register 0 */ +#define SPRN_UPMC1 0x3A9 /* User Performance Counter Register 1 */ +#define SPRN_UPMC2 0x3AA /* User Performance Counter Register 2 */ +#define SPRN_UPMC3 0x3AD /* User Performance Counter Register 3 */ +#define SPRN_UPMC4 0x3AE /* User Performance Counter Register 4 */ +#define SPRN_USIA 0x3AB /* User Sampled Instruction Address Register */ +#define SPRN_VRSAVE 0x100 /* Vector Register Save Register */ +#define SPRN_XER 0x001 /* Fixed Point Exception Register */ + +/* Bit definitions for MMCR0 and PMC1 / PMC2. */ +#define MMCR0_PMC1_CYCLES (1 << 7) +#define MMCR0_PMC1_ICACHEMISS (5 << 7) +#define MMCR0_PMC1_DTLB (6 << 7) +#define MMCR0_PMC2_DCACHEMISS 0x6 +#define MMCR0_PMC2_CYCLES 0x1 +#define MMCR0_PMC2_ITLB 0x7 +#define MMCR0_PMC2_LOADMISSTIME 0x5 + +/* Short-hand versions for a number of the above SPRNs */ +#define CTR SPRN_CTR /* Counter Register */ +#define DAR SPRN_DAR /* Data Address Register */ +#define DABR SPRN_DABR /* Data Address Breakpoint Register */ +#define DBAT0L SPRN_DBAT0L /* Data BAT 0 Lower Register */ +#define DBAT0U SPRN_DBAT0U /* Data BAT 0 Upper Register */ +#define DBAT1L SPRN_DBAT1L /* Data BAT 1 Lower Register */ +#define DBAT1U SPRN_DBAT1U /* Data BAT 1 Upper Register */ +#define DBAT2L SPRN_DBAT2L /* Data BAT 2 Lower Register */ +#define DBAT2U SPRN_DBAT2U /* Data BAT 2 Upper Register */ +#define DBAT3L SPRN_DBAT3L /* Data BAT 3 Lower Register */ +#define DBAT3U SPRN_DBAT3U /* Data BAT 3 Upper Register */ +#define DBAT4L SPRN_DBAT4L /* Data BAT 4 Lower Register */ +#define DBAT4U SPRN_DBAT4U /* Data BAT 4 Upper Register */ +#define DBAT5L SPRN_DBAT5L /* Data BAT 5 Lower Register */ +#define DBAT5U SPRN_DBAT5U /* Data BAT 5 Upper Register */ +#define DBAT6L SPRN_DBAT6L /* Data BAT 6 Lower Register */ +#define DBAT6U SPRN_DBAT6U /* Data BAT 6 Upper Register */ +#define DBAT7L SPRN_DBAT7L /* Data BAT 7 Lower Register */ +#define DBAT7U SPRN_DBAT7U /* Data BAT 7 Upper Register */ +#define DEC SPRN_DEC /* Decrement Register */ +#define DMISS SPRN_DMISS /* Data TLB Miss Register */ +#define DSISR SPRN_DSISR /* Data Storage Interrupt Status Register */ +#define EAR SPRN_EAR /* External Address Register */ +#define HASH1 SPRN_HASH1 /* Primary Hash Address Register */ +#define HASH2 SPRN_HASH2 /* Secondary Hash Address Register */ +#define HID0 SPRN_HID0 /* Hardware Implementation Register 0 */ +#define HID1 SPRN_HID1 /* Hardware Implementation Register 1 */ +#define IABR SPRN_IABR /* Instruction Address Breakpoint Register */ +#define IBAT0L SPRN_IBAT0L /* Instruction BAT 0 Lower Register */ +#define IBAT0U SPRN_IBAT0U /* Instruction BAT 0 Upper Register */ +#define IBAT1L SPRN_IBAT1L /* Instruction BAT 1 Lower Register */ +#define IBAT1U SPRN_IBAT1U /* Instruction BAT 1 Upper Register */ +#define IBAT2L SPRN_IBAT2L /* Instruction BAT 2 Lower Register */ +#define IBAT2U SPRN_IBAT2U /* Instruction BAT 2 Upper Register */ +#define IBAT3L SPRN_IBAT3L /* Instruction BAT 3 Lower Register */ +#define IBAT3U SPRN_IBAT3U /* Instruction BAT 3 Upper Register */ +#define IBAT4L SPRN_IBAT4L /* Instruction BAT 4 Lower Register */ +#define IBAT4U SPRN_IBAT4U /* Instruction BAT 4 Upper Register */ +#define IBAT5L SPRN_IBAT5L /* Instruction BAT 5 Lower Register */ +#define IBAT5U SPRN_IBAT5U /* Instruction BAT 5 Upper Register */ +#define IBAT6L SPRN_IBAT6L /* Instruction BAT 6 Lower Register */ +#define IBAT6U SPRN_IBAT6U /* Instruction BAT 6 Upper Register */ +#define IBAT7L SPRN_IBAT7L /* Instruction BAT 7 Lower Register */ +#define IBAT7U SPRN_IBAT7U /* Instruction BAT 7 Upper Register */ +#define ICMP SPRN_ICMP /* Instruction TLB Compare Register */ +#define IMISS SPRN_IMISS /* Instruction TLB Miss Register */ +#define IMMR SPRN_IMMR /* PPC 860/821 Internal Memory Map Register */ +#define L2CR SPRN_L2CR /* Classic PPC L2 cache control register */ +#define L3CR SPRN_L3CR /* PPC 745x L3 cache control register */ +#define LR SPRN_LR +#define PVR SPRN_PVR /* Processor Version */ +#define RPA SPRN_RPA /* Required Physical Address Register */ +#define SDR1 SPRN_SDR1 /* MMU hash base register */ +#define SPR0 SPRN_SPRG0 /* Supervisor Private Registers */ +#define SPR1 SPRN_SPRG1 +#define SPR2 SPRN_SPRG2 +#define SPR3 SPRN_SPRG3 +#define SPR4 SPRN_SPRG4 +#define SPR5 SPRN_SPRG5 +#define SPR6 SPRN_SPRG6 +#define SPR7 SPRN_SPRG7 +#define SPRG0 SPRN_SPRG0 +#define SPRG1 SPRN_SPRG1 +#define SPRG2 SPRN_SPRG2 +#define SPRG3 SPRN_SPRG3 +#define SPRG4 SPRN_SPRG4 +#define SPRG5 SPRN_SPRG5 +#define SPRG6 SPRN_SPRG6 +#define SPRG7 SPRN_SPRG7 +#define SRR0 SPRN_SRR0 /* Save and Restore Register 0 */ +#define SRR1 SPRN_SRR1 /* Save and Restore Register 1 */ +#define SRR2 SPRN_SRR2 /* Save and Restore Register 2 */ +#define SRR3 SPRN_SRR3 /* Save and Restore Register 3 */ +#define ICTC SPRN_ICTC /* Instruction Cache Throttling Control Reg */ +#define THRM1 SPRN_THRM1 /* Thermal Management Register 1 */ +#define THRM2 SPRN_THRM2 /* Thermal Management Register 2 */ +#define THRM3 SPRN_THRM3 /* Thermal Management Register 3 */ +#define XER SPRN_XER +#define TBRL SPRN_TBRL /* Time Base Read Lower Register */ +#define TBRU SPRN_TBRU /* Time Base Read Upper Register */ +#define TBWL SPRN_TBWL /* Time Base Write Lower Register */ +#define TBWU SPRN_TBWU /* Time Base Write Upper Register */ + +/* Processor Version Register */ + +/* Processor Version Register (PVR) field extraction */ + +#define PVR_VER(pvr) (((pvr) >> 16) & 0xFFFF) /* Version field */ +#define PVR_REV(pvr) (((pvr) >> 0) & 0xFFFF) /* Revison field */ + +/* + * IBM has further subdivided the standard PowerPC 16-bit version and + * revision subfields of the PVR for the PowerPC 403s into the following: + */ + +#define PVR_FAM(pvr) (((pvr) >> 20) & 0xFFF) /* Family field */ +#define PVR_MEM(pvr) (((pvr) >> 16) & 0xF) /* Member field */ +#define PVR_CORE(pvr) (((pvr) >> 12) & 0xF) /* Core field */ +#define PVR_CFG(pvr) (((pvr) >> 8) & 0xF) /* Configuration field */ +#define PVR_MAJ(pvr) (((pvr) >> 4) & 0xF) /* Major revision field */ +#define PVR_MIN(pvr) (((pvr) >> 0) & 0xF) /* Minor revision field */ + +/* Processor Version Numbers */ + +#define PVR_403GA 0x00200000 +#define PVR_403GB 0x00200100 +#define PVR_403GC 0x00200200 +#define PVR_403GCX 0x00201400 +#define PVR_405GP 0x40110000 +#define PVR_STB03XXX 0x40310000 +#define PVR_NP405H 0x41410000 +#define PVR_NP405L 0x41610000 +#define PVR_440GP_RB 0x40120440 +#define PVR_440GP_RC1 0x40120481 +#define PVR_440GP_RC2 0x40200481 +#define PVR_440GX_RA 0x51b21850 +#define PVR_440GX_RB 0x51b21851 +#define PVR_440GX_RB1 0x51b21852 +#define PVR_601 0x00010000 +#define PVR_602 0x00050000 +#define PVR_603 0x00030000 +#define PVR_603e 0x00060000 +#define PVR_603ev 0x00070000 +#define PVR_603r 0x00071000 +#define PVR_604 0x00040000 +#define PVR_604e 0x00090000 +#define PVR_604r 0x000A0000 +#define PVR_620 0x00140000 +#define PVR_740 0x00080000 +#define PVR_750 PVR_740 +#define PVR_740P 0x10080000 +#define PVR_750P PVR_740P +#define PVR_7400 0x000C0000 +#define PVR_7410 0x800C0000 +#define PVR_7450 0x80000000 +/* + * For the 8xx processors, all of them report the same PVR family for + * the PowerPC core. The various versions of these processors must be + * differentiated by the version number in the Communication Processor + * Module (CPM). + */ +#define PVR_821 0x00500000 +#define PVR_823 PVR_821 +#define PVR_850 PVR_821 +#define PVR_860 PVR_821 +#define PVR_8240 0x00810100 +#define PVR_8245 0x80811014 +#define PVR_8260 PVR_8240 + +/* Segment Registers */ +#define SR0 0 +#define SR1 1 +#define SR2 2 +#define SR3 3 +#define SR4 4 +#define SR5 5 +#define SR6 6 +#define SR7 7 +#define SR8 8 +#define SR9 9 +#define SR10 10 +#define SR11 11 +#define SR12 12 +#define SR13 13 +#define SR14 14 +#define SR15 15 + + +/* returns r3 = relocated address of sym */ +/* modifies r0 */ +#define RELOC_SYM(sym) \ + mflr r3; \ + bl 1f; \ +1: mflr r0; \ + mtlr r3; \ + lis r3, 1b@ha; \ + ori r3, r3, 1b@l; \ + subf r0, r3, r0; \ + lis r3, sym@ha; \ + ori r3, r3, sym@l; \ + add r3, r3, r0 + diff --git a/purgatory/arch/ppc/purgatory-ppc.c b/purgatory/arch/ppc/purgatory-ppc.c new file mode 100644 index 00000000..ab4d941d --- /dev/null +++ b/purgatory/arch/ppc/purgatory-ppc.c @@ -0,0 +1,7 @@ +#include <purgatory.h> +#include "purgatory-ppc.h" + +void setup_arch(void) +{ + /* Nothing for now */ +} diff --git a/purgatory/arch/ppc/purgatory-ppc.h b/purgatory/arch/ppc/purgatory-ppc.h new file mode 100644 index 00000000..e931cae6 --- /dev/null +++ b/purgatory/arch/ppc/purgatory-ppc.h @@ -0,0 +1,6 @@ +#ifndef PURGATORY_PPC_H +#define PURGATORY_PPC_H + +/* nothing yet */ + +#endif /* PURGATORY_PPC_H */ diff --git a/purgatory/arch/ppc64/Makefile b/purgatory/arch/ppc64/Makefile new file mode 100644 index 00000000..c76794b2 --- /dev/null +++ b/purgatory/arch/ppc64/Makefile @@ -0,0 +1,7 @@ +# +# Purgatory ppc +# + +PURGATORY_C_SRCS+= +PURGATORY_S_SRCS+= + diff --git a/purgatory/arch/ppc64/include/limits.h b/purgatory/arch/ppc64/include/limits.h new file mode 100644 index 00000000..0c6f21f9 --- /dev/null +++ b/purgatory/arch/ppc64/include/limits.h @@ -0,0 +1,57 @@ +#ifndef LIMITS_H +#define LIMITS_H 1 + +/* Number of bits in a `char' */ +#define CHAR_BIT 8 + +/* Minimum and maximum values a `signed char' can hold */ +#define SCHAR_MIN (-128) +#define SCHAR_MAX 127 + +/* Maximum value an `unsigned char' can hold. (Minimum is 0.) */ +#define UCHAR_MAX 255 + +/* Minimum and maximum values a `char' can hold */ +#define CHAR_MIN SCHAR_MIN +#define CHAR_MAX SCHAR_MAX + +/* Minimum and maximum values a `signed short int' can hold */ +#define SHRT_MIN (-32768) +#define SHRT_MAX 32767 + +/* Maximum value an `unsigned short' can hold. (Minimum is 0.) */ +#define USHRT_MAX 65535 + + +/* Minimum and maximum values a `signed int' can hold */ +#define INT_MIN (-INT_MAX - 1) +#define INT_MAX 2147483647 + +/* Maximum value an `unsigned int' can hold. (Minimum is 0.) */ +#define UINT_MAX 4294967295U + + +/* Minimum and maximum values a `signed int' can hold */ +#define INT_MIN (-INT_MAX - 1) +#define INT_MAX 2147483647 + +/* Maximum value an `unsigned int' can hold. (Minimum is 0.) */ +#define UINT_MAX 4294967295U + +/* Minimum and maximum values a `signed long' can hold */ +#define LONG_MAX 9223372036854775807L +#define LONG_MIN (-LONG_MAX - 1L) + +/* Maximum value an `unsigned long' can hold. (Minimum is 0.) */ +#define ULONG_MAX 18446744073709551615UL + +/* Minimum and maximum values a `signed long long' can hold */ +#define LLONG_MAX 9223372036854775807LL +#define LLONG_MIN (-LONG_MAX - 1LL) + + +/* Maximum value an `unsigned long long' can hold. (Minimum is 0.) */ +#define ULLONG_MAX 18446744073709551615ULL + + +#endif /* LIMITS_H */ diff --git a/purgatory/arch/ppc64/include/stdint.h b/purgatory/arch/ppc64/include/stdint.h new file mode 100644 index 00000000..2f9c592c --- /dev/null +++ b/purgatory/arch/ppc64/include/stdint.h @@ -0,0 +1,16 @@ +#ifndef STDINT_H +#define STDINT_H + +typedef unsigned long size_t; + +typedef unsigned char uint8_t; +typedef unsigned short uint16_t; +typedef unsigned int uint32_t; +typedef unsigned long uint64_t; + +typedef signed char int8_t; +typedef signed short int16_t; +typedef signed int int32_t; +typedef signed long int64_t; + +#endif /* STDINT_H */ diff --git a/purgatory/arch/x86_64/Makefile b/purgatory/arch/x86_64/Makefile new file mode 100644 index 00000000..d08edff4 --- /dev/null +++ b/purgatory/arch/x86_64/Makefile @@ -0,0 +1,15 @@ +# +# Purgatory x86_64 +# + +PURGATORY_S_SRCS+= purgatory/arch/i386/entry32-16.S +PURGATORY_S_SRCS+= purgatory/arch/i386/entry32-16-debug.S +PURGATORY_S_SRCS+= purgatory/arch/x86_64/entry64-32.S +PURGATORY_S_SRCS+= purgatory/arch/x86_64/entry64.S +PURGATORY_S_SRCS+= purgatory/arch/x86_64/setup-x86_64.S +PURGATORY_S_SRCS+= purgatory/arch/x86_64/stack.S +PURGATORY_C_SRCS+= purgatory/arch/x86_64/purgatory-x86_64.c +PURGATORY_C_SRCS+= purgatory/arch/i386/console-x86.c +PURGATORY_C_SRCS+= purgatory/arch/i386/vga.c +PURGATORY_C_SRCS+= purgatory/arch/i386/pic.c + diff --git a/purgatory/arch/x86_64/entry64-32.S b/purgatory/arch/x86_64/entry64-32.S new file mode 100644 index 00000000..66f8a854 --- /dev/null +++ b/purgatory/arch/x86_64/entry64-32.S @@ -0,0 +1,134 @@ +/* + * purgatory: setup code + * + * Copyright (C) 2003,2004 Eric Biederman (ebiederm@xmission.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation (version 2 of the License). + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +.data + .equ MSR_K6_EFER, 0xC0000080 + .equ EFER_LME, 0x00000100 + .equ X86_CR4_PAE, 0x00000020 + .equ CR0_PG, 0x80000000 + + .text + .globl entry32, entry32_regs +entry32: + .code64 + + /* Setup a gdt that should that is generally usefully */ + lgdt gdt(%rip) + + /* Switch to 32bit compatiblity mode */ + ljmp *lm_exit_addr(%rip) +lm_exit: + .code32 + + /* Disable paging */ + movl %cr0, %eax + andl $~CR0_PG, %eax + movl %eax, %cr0 + + /* Disable long mode */ + movl $MSR_K6_EFER, %ecx + rdmsr + andl $~EFER_LME, %eax + wrmsr + + /* Disable PAE */ + xorl %eax, %eax + movl %eax, %cr4 + + /* load the data segments */ + movl $0x18, %eax /* data segment */ + movl %eax, %ds + movl %eax, %es + movl %eax, %ss + movl %eax, %fs + movl %eax, %gs + + /* Load the registers */ + movl eax, %eax + movl ecx, %ecx + movl edx, %edx + movl esi, %esi + movl edi, %edi + movl esp, %esp + movl ebp, %ebp + movl ebx, %ebx + + /* Jump to the loaded image */ + jmpl *(eip) + + .section ".rodata" + .balign 16 +gdt: /* 0x00 unusable segment + * 0x08 unused + * so use them as the gdt ptr + */ + .word gdt_end - gdt - 1 + .quad gdt + .word 0, 0, 0 + + /* Documented linux kernel segments */ + /* 0x10 4GB flat code segment */ + .word 0xFFFF, 0x0000, 0x9A00, 0x00CF + /* 0x18 4GB flat data segment */ + .word 0xFFFF, 0x0000, 0x9200, 0x00CF + + /* 0x20 dummy */ + .word 0x0000, 0x0000, 0x0000, 0x000 + /* 0x28 dummy */ + .word 0x0000, 0x0000, 0x0000, 0x000 + /* 0x30 dummy */ + .word 0x0000, 0x0000, 0x0000, 0x000 + /* 0x38 dummy */ + .word 0x0000, 0x0000, 0x0000, 0x000 + /* 0x40 dummy */ + .word 0x0000, 0x0000, 0x0000, 0x000 + /* 0x48 dummy */ + .word 0x0000, 0x0000, 0x0000, 0x000 + /* 0x50 dummy */ + .word 0x0000, 0x0000, 0x0000, 0x000 + /* 0x58 dummy */ + .word 0x0000, 0x0000, 0x0000, 0x000 + + /* Segments used by the 2.5.x kernel */ + /* 0x60 4GB flat code segment */ + .word 0xFFFF, 0x0000, 0x9A00, 0x00CF + /* 0x68 4GB flat data segment */ + .word 0xFFFF, 0x0000, 0x9200, 0x00CF +gdt_end: + + .section ".rodata" + .balign 4 +lm_exit_addr: + .long lm_exit + .long 0x10 + + .section ".rodata" + .balign 4 +entry32_regs: +eax: .long 0x00000000 +ebx: .long 0x00000000 +ecx: .long 0x00000000 +edx: .long 0x00000000 +esi: .long 0x00000000 +edi: .long 0x00000000 +esp: .long 0x00000000 +ebp: .long 0x00000000 +eip: .long entry16 + .size entry32_regs, . - entry32_regs + diff --git a/purgatory/arch/x86_64/entry64.S b/purgatory/arch/x86_64/entry64.S new file mode 100644 index 00000000..1ed67863 --- /dev/null +++ b/purgatory/arch/x86_64/entry64.S @@ -0,0 +1,100 @@ +/* + * kexec: Linux boots Linux + * + * Copyright (C) 2003,2004 Eric Biederman (ebiederm@xmission.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation (version 2 of the License). + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include "arch/debug.h" + +.text +.code64 + .balign 16 + .globl entry64, entry64_regs +entry64: + /* Don't worry about special registers... */ + + /* Setup a gdt that should be preserved */ + lgdt gdt(%rip) + + /* load the data segments */ + movl $0x18, %eax /* data segment */ + movl %eax, %ds + movl %eax, %es + movl %eax, %ss + movl %eax, %fs + movl %eax, %gs + + /* In 64bit mode the code segment is meaningless */ + + /* Load the registers */ + movq rax(%rip), %rax + movq rbx(%rip), %rbx + movq rcx(%rip), %rcx + movq rdx(%rip), %rdx + movq rsi(%rip), %rsi + movq rdi(%rip), %rdi + movq rsp(%rip), %rsp + movq rbp(%rip), %rbp + movq r8(%rip), %r8 + movq r9(%rip), %r9 + movq r10(%rip), %r10 + movq r11(%rip), %r11 + movq r12(%rip), %r12 + movq r13(%rip), %r13 + movq r14(%rip), %r14 + movq r15(%rip), %r15 + + /* Jump to the new code... */ + jmpq *rip(%rip) + + .section ".rodata" + .balign 4 +entry64_regs: +rax: .quad 0x00000000 +rbx: .quad 0x00000000 +rcx: .quad 0x00000000 +rdx: .quad 0x00000000 +rsi: .quad 0x00000000 +rdi: .quad 0x00000000 +rsp: .quad 0x00000000 +rbp: .quad 0x00000000 +r8: .quad 0x00000000 +r9: .quad 0x00000000 +r10: .quad 0x00000000 +r11: .quad 0x00000000 +r12: .quad 0x00000000 +r13: .quad 0x00000000 +r14: .quad 0x00000000 +r15: .quad 0x00000000 +rip: .quad entry32 + .size entry64_regs, . - entry64_regs + + .section ".rodata" + .balign 16 +gdt: /* 0x00 unusable segment + * 0x08 unused + * so use them as the gdt ptr + */ + .word gdt_end - gdt - 1 + .quad gdt + .word 0, 0, 0 + + /* 0x10 4GB flat code segment */ + .word 0xFFFF, 0x0000, 0x9A00, 0x00CF + + /* 0x18 4GB flat data segment */ + .word 0xFFFF, 0x0000, 0x9200, 0x00CF +gdt_end: diff --git a/purgatory/arch/x86_64/include/arch/debug.h b/purgatory/arch/x86_64/include/arch/debug.h new file mode 100644 index 00000000..39f2b16f --- /dev/null +++ b/purgatory/arch/x86_64/include/arch/debug.h @@ -0,0 +1,317 @@ +/* Base Address */ +#define TTYS0_BASE 0x3f8 +/* Data */ +#define TTYS0_RBR (TTYS0_BASE+0x00) +#define TTYS0_TBR (TTYS0_BASE+0x00) +/* Control */ +#define TTYS0_IER (TTYS0_BASE+0x01) +#define TTYS0_IIR (TTYS0_BASE+0x02) +#define TTYS0_FCR (TTYS0_BASE+0x02) +#define TTYS0_LCR (TTYS0_BASE+0x03) +#define TTYS0_MCR (TTYS0_BASE+0x04) + +#define TTYS0_DLL (TTYS0_BASE+0x00) +#define TTYS0_DLM (TTYS0_BASE+0x01) +/* Status */ +#define TTYS0_LSR (TTYS0_BASE+0x05) +#define TTYS0_MSR (TTYS0_BASE+0x06) +#define TTYS0_SCR (TTYS0_BASE+0x07) + +#define TTYS0_BAUD 9600 +#define TTYS0_DIV (115200/TTYS0_BAUD) +#define TTYS0_DIV_LO (TTYS0_DIV&0xFF) +#define TTYS0_DIV_HI ((TTYS0_DIV >> 8)&0xFF) + +#if ((115200%TTYS0_BAUD) != 0) +#error Bad ttyS0 baud rate +#endif + +#define TTYS0_INIT \ + /* disable interrupts */ \ + movb $0x00, %al ; \ + movw $TTYS0_IER, %dx ; \ + outb %al, %dx ; \ + ; \ + /* enable fifos */ \ + movb $0x01, %al ; \ + movw $TTYS0_FCR, %dx ; \ + outb %al, %dx ; \ + ; \ + /* Set Baud Rate Divisor to TTYS0_BAUD */ \ + movw $TTYS0_LCR, %dx ; \ + movb $0x83, %al ; \ + outb %al, %dx ; \ + ; \ + movw $TTYS0_DLL, %dx ; \ + movb $TTYS0_DIV_LO, %al ; \ + outb %al, %dx ; \ + ; \ + movw $TTYS0_DLM, %dx ; \ + movb $TTYS0_DIV_HI, %al ; \ + outb %al, %dx ; \ + ; \ + movw $TTYS0_LCR, %dx ; \ + movb $0x03, %al ; \ + outb %al, %dx + + + /* uses: ax, dx */ +#define TTYS0_TX_AL \ + mov %al, %ah ; \ +9: mov $TTYS0_LSR, %dx ; \ + inb %dx, %al ; \ + test $0x20, %al ; \ + je 9b ; \ + mov $TTYS0_TBR, %dx ; \ + mov %ah, %al ; \ + outb %al, %dx + + /* uses: ax, dx */ +#define TTYS0_TX_CHAR(byte) \ + mov byte, %al ; \ + TTYS0_TX_AL + + /* uses: eax, dx */ +#define TTYS0_TX_HEX32(lword) \ + mov lword, %eax ; \ + shr $28, %eax ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %eax ; \ + shr $24, %eax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %eax ; \ + shr $20, %eax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %eax ; \ + shr $16, %eax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %eax ; \ + shr $12, %eax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %eax ; \ + shr $8, %eax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %eax ; \ + shr $4, %eax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %eax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL + + /* uses: rax, dx */ +#define TTYS0_TX_HEX64(lword) \ + mov lword, %rax ; \ + shr $60, %rax ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %rax ; \ + shr $56, %rax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %rax ; \ + shr $52, %rax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %rax ; \ + shr $48, %rax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %rax ; \ + shr $44, %rax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %rax ; \ + shr $40, %rax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %rax ; \ + shr $36, %rax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %rax ; \ + shr $32, %rax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %rax ; \ + shr $28, %rax ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %rax ; \ + shr $24, %rax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %rax ; \ + shr $20, %rax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %rax ; \ + shr $16, %rax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %rax ; \ + shr $12, %rax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %rax ; \ + shr $8, %rax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %rax ; \ + shr $4, %rax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL ; \ + ; \ + mov lword, %rax ; \ + and $0x0f, %al ; \ + add $'0', %al ; \ + cmp $'9', %al ; \ + jle 9f ; \ + add $39, %al ; \ +9: ; \ + TTYS0_TX_AL + + +#define DEBUG(x) TTYS0_TX_CHAR($x) ; TTYS0_TX_CHAR($'\r') ; TTYS0_TX_CHAR($'\n') +#define DEBUG_TX_HEX32(x) TTYS0_TX_HEX32(x); TTYS0_TX_CHAR($'\r') ; TTYS0_TX_CHAR($'\n') +#define DEBUG_TX_HEX64(x) TTYS0_TX_HEX64(x); TTYS0_TX_CHAR($'\r') ; TTYS0_TX_CHAR($'\n') + diff --git a/purgatory/arch/x86_64/include/arch/io.h b/purgatory/arch/x86_64/include/arch/io.h new file mode 100644 index 00000000..13ad8871 --- /dev/null +++ b/purgatory/arch/x86_64/include/arch/io.h @@ -0,0 +1,98 @@ +#ifndef ARCH_IO_H +#define ARCH_IO_H + +#include <stdint.h> +/* Helper functions for directly doing I/O */ + +extern inline uint8_t inb(uint16_t port) +{ + uint8_t result; + + __asm__ __volatile__ ( + "inb %w1,%0" + :"=a" (result) + :"Nd" (port)); + return result; +} + +extern inline uint16_t inw(uint16_t port) +{ + uint16_t result; + + __asm__ __volatile__ ( + "inw %w1,%0" + :"=a" (result) + :"Nd" (port)); + return result; +} + +extern inline uint32_t inl(uint32_t port) +{ + uint32_t result; + + __asm__ __volatile__ ( + "inl %w1,%0" + :"=a" (result) + :"Nd" (port)); + return result; +} + +extern inline void outb (uint8_t value, uint16_t port) +{ + __asm__ __volatile__ ( + "outb %b0,%w1" + : + :"a" (value), "Nd" (port)); +} + +extern inline void outw (uint16_t value, uint16_t port) +{ + __asm__ __volatile__ ( + "outw %w0,%w1" + : + :"a" (value), "Nd" (port)); +} + +extern inline void outl (uint32_t value, uint16_t port) +{ + __asm__ __volatile__ ( + "outl %0,%w1" + : + :"a" (value), "Nd" (port)); +} + + +/* + * readX/writeX() are used to access memory mapped devices. On some + * architectures the memory mapped IO stuff needs to be accessed + * differently. On the x86 architecture, we just read/write the + * memory location directly. + */ + +static inline unsigned char readb(const volatile void *addr) +{ + return *(volatile unsigned char *) addr; +} +static inline unsigned short readw(const volatile void *addr) +{ + return *(volatile unsigned short *) addr; +} +static inline unsigned int readl(const volatile void *addr) +{ + return *(volatile unsigned int *) addr; +} + +static inline void writeb(unsigned char b, volatile void *addr) +{ + *(volatile unsigned char *) addr = b; +} +static inline void writew(unsigned short b, volatile void *addr) +{ + *(volatile unsigned short *) addr = b; +} +static inline void writel(unsigned int b, volatile void *addr) +{ + *(volatile unsigned int *) addr = b; +} + +#endif /* ARCH_IO_H */ diff --git a/purgatory/arch/x86_64/include/limits.h b/purgatory/arch/x86_64/include/limits.h new file mode 100644 index 00000000..0c6f21f9 --- /dev/null +++ b/purgatory/arch/x86_64/include/limits.h @@ -0,0 +1,57 @@ +#ifndef LIMITS_H +#define LIMITS_H 1 + +/* Number of bits in a `char' */ +#define CHAR_BIT 8 + +/* Minimum and maximum values a `signed char' can hold */ +#define SCHAR_MIN (-128) +#define SCHAR_MAX 127 + +/* Maximum value an `unsigned char' can hold. (Minimum is 0.) */ +#define UCHAR_MAX 255 + +/* Minimum and maximum values a `char' can hold */ +#define CHAR_MIN SCHAR_MIN +#define CHAR_MAX SCHAR_MAX + +/* Minimum and maximum values a `signed short int' can hold */ +#define SHRT_MIN (-32768) +#define SHRT_MAX 32767 + +/* Maximum value an `unsigned short' can hold. (Minimum is 0.) */ +#define USHRT_MAX 65535 + + +/* Minimum and maximum values a `signed int' can hold */ +#define INT_MIN (-INT_MAX - 1) +#define INT_MAX 2147483647 + +/* Maximum value an `unsigned int' can hold. (Minimum is 0.) */ +#define UINT_MAX 4294967295U + + +/* Minimum and maximum values a `signed int' can hold */ +#define INT_MIN (-INT_MAX - 1) +#define INT_MAX 2147483647 + +/* Maximum value an `unsigned int' can hold. (Minimum is 0.) */ +#define UINT_MAX 4294967295U + +/* Minimum and maximum values a `signed long' can hold */ +#define LONG_MAX 9223372036854775807L +#define LONG_MIN (-LONG_MAX - 1L) + +/* Maximum value an `unsigned long' can hold. (Minimum is 0.) */ +#define ULONG_MAX 18446744073709551615UL + +/* Minimum and maximum values a `signed long long' can hold */ +#define LLONG_MAX 9223372036854775807LL +#define LLONG_MIN (-LONG_MAX - 1LL) + + +/* Maximum value an `unsigned long long' can hold. (Minimum is 0.) */ +#define ULLONG_MAX 18446744073709551615ULL + + +#endif /* LIMITS_H */ diff --git a/purgatory/arch/x86_64/include/stdint.h b/purgatory/arch/x86_64/include/stdint.h new file mode 100644 index 00000000..2f9c592c --- /dev/null +++ b/purgatory/arch/x86_64/include/stdint.h @@ -0,0 +1,16 @@ +#ifndef STDINT_H +#define STDINT_H + +typedef unsigned long size_t; + +typedef unsigned char uint8_t; +typedef unsigned short uint16_t; +typedef unsigned int uint32_t; +typedef unsigned long uint64_t; + +typedef signed char int8_t; +typedef signed short int16_t; +typedef signed int int32_t; +typedef signed long int64_t; + +#endif /* STDINT_H */ diff --git a/purgatory/arch/x86_64/purgatory-x86_64.c b/purgatory/arch/x86_64/purgatory-x86_64.c new file mode 100644 index 00000000..f839ab5e --- /dev/null +++ b/purgatory/arch/x86_64/purgatory-x86_64.c @@ -0,0 +1,12 @@ +#include <arch/io.h> +#include <purgatory.h> +#include "purgatory-x86_64.h" + +uint8_t reset_vga = 0; +uint8_t legacy_pic = 0; + +void setup_arch(void) +{ + if (reset_vga) x86_reset_vga(); + if (legacy_pic) x86_setup_legacy_pic(); +} diff --git a/purgatory/arch/x86_64/purgatory-x86_64.h b/purgatory/arch/x86_64/purgatory-x86_64.h new file mode 100644 index 00000000..209edea6 --- /dev/null +++ b/purgatory/arch/x86_64/purgatory-x86_64.h @@ -0,0 +1,4 @@ +#ifndef PURGATORY_X86_64_H +#define PURGATORY_X86_64_H +#include "../i386/purgatory-x86.h" +#endif /* PURGATORY_X86_64_H */ diff --git a/purgatory/arch/x86_64/setup-x86_64.S b/purgatory/arch/x86_64/setup-x86_64.S new file mode 100644 index 00000000..d3b5993f --- /dev/null +++ b/purgatory/arch/x86_64/setup-x86_64.S @@ -0,0 +1,73 @@ +/* + * purgatory: setup code + * + * Copyright (C) 2003,2004 Eric Biederman (ebiederm@xmission.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation (version 2 of the License). + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include "arch/debug.h" + + +#undef i386 + + .text + .globl purgatory_start + .balign 16 +purgatory_start: + .code64 + + /* Load a gdt so I know what the segment registers are */ + lgdt gdt(%rip) + + /* load the data segments */ + movl $0x18, %eax /* data segment */ + movl %eax, %ds + movl %eax, %es + movl %eax, %ss + movl %eax, %fs + movl %eax, %gs + + /* In 64bit mode the code segment is meaningless */ + + /* Setup a stack */ + movq $lstack_end, %rsp + + /* Call the C code */ + call purgatory + jmp entry64 + + .section ".rodata" + .balign 16 +gdt: /* 0x00 unusable segment + * 0x08 unused + * so use them as the gdt ptr + */ + .word gdt_end - gdt - 1 + .quad gdt + .word 0, 0, 0 + + /* 0x10 4GB flat code segment */ + .word 0xFFFF, 0x0000, 0x9A00, 0x00AF + + /* 0x18 4GB flat data segment */ + .word 0xFFFF, 0x0000, 0x9200, 0x00CF +gdt_end: + + .bss + .balign 4096 +lstack: + .skip 4096 +lstack_end: + diff --git a/purgatory/arch/x86_64/stack.S b/purgatory/arch/x86_64/stack.S new file mode 100644 index 00000000..4188ea32 --- /dev/null +++ b/purgatory/arch/x86_64/stack.S @@ -0,0 +1,44 @@ +/* + * purgatory: stack + * + * Copyright (C) 2003,2004 Eric Biederman (ebiederm@xmission.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation (version 2 of the License). + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + + /* A stack for the loaded kernel. + * Seperate and in the data section so it can be prepopulated. + */ + .data + .balign 4096 + .globl stack, stack_end + .globl stack_arg32_1, stack_arg32_2, stack_arg32_3 ,stack_arg32_4 + .globl stack_arg32_5, stack_arg32_6, stack_arg32_7 ,stack_arg32_8 + .globl stack_arg64_1, stack_arg64_2, stack_arg64_3 ,stack_arg64_4 + +stack: + .skip 4096 - (8*4) +stack_arg64_4: ; .size stack_arg64_4, 8 +stack_arg32_8: .long 0 ; .size stack_arg32_8, 4 +stack_arg32_7: .long 0 ; .size stack_arg32_7, 4 +stack_arg64_3: ; .size stack_arg64_3, 8 +stack_arg32_6: .long 0 ; .size stack_arg32_6, 4 +stack_arg32_5: .long 0 ; .size stack_arg32_5, 4 +stack_arg64_2: ; .size stack_arg64_2, 8 +stack_arg32_4: .long 0 ; .size stack_arg32_4, 4 +stack_arg32_3: .long 0 ; .size stack_arg32_3, 4 +stack_arg64_1: ; .size stack_arg64_1, 8 +stack_arg32_2: .long 0 ; .size stack_arg32_2, 4 +stack_arg32_1: .long 0 ; .size stack_arg32_1, 4 +stack_end: diff --git a/purgatory/include/purgatory.h b/purgatory/include/purgatory.h new file mode 100644 index 00000000..93037f20 --- /dev/null +++ b/purgatory/include/purgatory.h @@ -0,0 +1,8 @@ +#ifndef PURGATORY_H +#define PURGATORY_H + +void putchar(int ch); +void printf(const char *fmt, ...); +void setup_arch(void); + +#endif /* PURGATORY_H */ diff --git a/purgatory/include/string.h b/purgatory/include/string.h new file mode 100644 index 00000000..87cc4e1c --- /dev/null +++ b/purgatory/include/string.h @@ -0,0 +1,10 @@ +#ifndef STRING_H +#define STRING_H + +size_t strnlen(const char *s, size_t max); +void* memset(void* s, int c, size_t n); +void* memcpy(void *dest, const void *src, size_t len); +int memcmp(void *src1, void *src2, size_t len); + + +#endif /* STRING_H */ diff --git a/purgatory/printf.c b/purgatory/printf.c new file mode 100644 index 00000000..962683d6 --- /dev/null +++ b/purgatory/printf.c @@ -0,0 +1,128 @@ +#include <stdarg.h> +#include <limits.h> +#include <stdint.h> +#include <purgatory.h> +#include <string.h> + +/* + * Output + * ============================================================================= + */ + +#define LONG_LONG_SHIFT ((int)((sizeof(unsigned long long)*CHAR_BIT) - 4)) +#define LONG_SHIFT ((int)((sizeof(unsigned long)*CHAR_BIT) - 4)) +#define INT_SHIFT ((int)((sizeof(unsigned int)*CHAR_BIT) - 4)) +#define SHRT_SHIFT ((int)((sizeof(unsigned short)*CHAR_BIT) - 4)) +#define CHAR_SHIFT ((int)((sizeof(unsigned char)*CHAR_BIT) - 4)) + +/************************************************************************** +PRINTF and friends + + Formats: + %x - 4 bytes int (8 hex digits, lower case) + %X - 4 bytes int (8 hex digits, upper case) + %lx - 8 bytes long (16 hex digits, lower case) + %lX - 8 bytes long (16 hex digits, upper case) + %hx - 2 bytes int (4 hex digits, lower case) + %hX - 2 bytes int (4 hex digits, upper case) + %hhx - 1 byte int (2 hex digits, lower case) + %hhX - 1 byte int (2 hex digits, upper case) + - optional # prefixes 0x or 0X + %d - decimal int + %c - char + %s - string + Note: width specification not supported +**************************************************************************/ +void printf(const char *fmt, ...) +{ + va_list args; + char *p; + va_start(args, fmt); + for ( ; *fmt != '\0'; ++fmt) { + if (*fmt != '%') { + putchar(*fmt); + continue; + } + if (*++fmt == 's') { + for(p = va_arg(args, char *); *p != '\0'; p++) + putchar(*p); + } + else { /* Length of item is bounded */ + char tmp[40], *q = tmp; + int shift = INT_SHIFT; + if (*fmt == 'L') { + shift = LONG_LONG_SHIFT; + fmt++; + } + else if (*fmt == 'l') { + shift = LONG_SHIFT; + fmt++; + } + else if (*fmt == 'h') { + shift = SHRT_SHIFT; + fmt++; + if (*fmt == 'h') { + shift = CHAR_SHIFT; + fmt++; + } + } + + /* + * Before each format q points to tmp buffer + * After each format q points past end of item + */ + if ((*fmt | 0x20) == 'x') { + /* With x86 gcc, sizeof(long) == sizeof(int) */ + unsigned long long h; + int ncase; + if (shift > LONG_SHIFT) { + h = va_arg(args, unsigned long long); + } + else if (shift > INT_SHIFT) { + h = va_arg(args, unsigned long); + } else { + h = va_arg(args, unsigned int); + } + ncase = (*fmt & 0x20); + for ( ; shift >= 0; shift -= 4) + *q++ = "0123456789ABCDEF"[(h >> shift) & 0xF] | ncase; + } + else if (*fmt == 'd') { + char *r; + long i; + if (shift > LONG_SHIFT) { + i = va_arg(args, long long); + } + else if (shift > INT_SHIFT) { + i = va_arg(args, long); + } else { + i = va_arg(args, int); + } + if (i < 0) { + *q++ = '-'; + i = -i; + } + p = q; /* save beginning of digits */ + do { + *q++ = '0' + (i % 10); + i /= 10; + } while (i); + /* reverse digits, stop in middle */ + r = q; /* don't alter q */ + while (--r > p) { + i = *r; + *r = *p; + *p++ = i; + } + } + else if (*fmt == 'c') + *q++ = va_arg(args, int); + else + *q++ = *fmt; + /* now output the saved string */ + for (p = tmp; p < q; ++p) + putchar(*p); + } + } + va_end(args); +} diff --git a/purgatory/purgatory.c b/purgatory/purgatory.c new file mode 100644 index 00000000..97fc638d --- /dev/null +++ b/purgatory/purgatory.c @@ -0,0 +1,47 @@ +#include <stdarg.h> +#include <limits.h> +#include <stdint.h> +#include <purgatory.h> +#include <sha256.h> +#include <string.h> +#include "../kexec/kexec-sha256.h" + +struct sha256_region sha256_regions[SHA256_REGIONS] = {}; +sha256_digest_t sha256_digest = { }; + +void verify_sha256_digest(void) +{ + struct sha256_region *ptr, *end; + sha256_digest_t digest; + int i; + sha256_context ctx; + sha256_starts(&ctx); + end = &sha256_regions[sizeof(sha256_regions)/sizeof(sha256_regions[0])]; + for(ptr = sha256_regions; ptr < end; ptr++) { + sha256_update(&ctx, ptr->start, ptr->len); + } + sha256_finish(&ctx, digest); + if (memcmp(digest, sha256_digest, sizeof(digest)) != 0) { + printf("sha256 digests do not match :(\n"); + printf(" digest: "); + for(i = 0; i < sizeof(digest); i++) { + printf("%hhx ", digest[i]); + } + printf("\n"); + printf("sha256_digest: "); + for(i = 0; i < sizeof(sha256_digest); i++) { + printf("%hhx ", sha256_digest[i]); + } + printf("\n"); + for(;;) { + /* loop forever */ + } + } +} + +void purgatory(void) +{ + printf("I'm in purgatory\n"); + setup_arch(); + verify_sha256_digest(); +} diff --git a/purgatory/string.c b/purgatory/string.c new file mode 100644 index 00000000..4f35613e --- /dev/null +++ b/purgatory/string.c @@ -0,0 +1,53 @@ +#include <stddef.h> +#include <string.h> + +size_t strnlen(const char *s, size_t max) +{ + size_t len = 0; + while(len < max && *s) { + len++; + s++; + } + return len; +} + +void* memset(void* s, int c, size_t n) +{ + size_t i; + char *ss = (char*)s; + + for (i=0;i<n;i++) ss[i] = c; + return s; +} + + +void* memcpy(void *dest, const void *src, size_t len) +{ + size_t i; + unsigned char *d; + const unsigned char *s; + d = dest; + s = src; + + for (i=0; i < len; i++) + d[i] = s[i]; + + return dest; +} + + +int memcmp(void *src1, void *src2, size_t len) +{ + unsigned char *s1, *s2; + size_t i; + s1 = src1; + s2 = src2; + for(i = 0; i < len; i++) { + if (*s1 != *s2) { + return *s2 - *s1; + } + } + return 0; + +} + diff --git a/util/Makefile b/util/Makefile new file mode 100644 index 00000000..d6e8e79c --- /dev/null +++ b/util/Makefile @@ -0,0 +1,4 @@ +BIN_TO_HEX:= $(OBJDIR)/bin/bin-to-hex +$(BIN_TO_HEX): util/bin-to-hex.c + mkdir -p $(@D) + $(BUILD_CC) $(BUILD_CFLAGS) $< -o $@ diff --git a/util/bin-to-hex.c b/util/bin-to-hex.c new file mode 100644 index 00000000..5906f936 --- /dev/null +++ b/util/bin-to-hex.c @@ -0,0 +1,25 @@ +#include <stdio.h> + +int main(int argc, char **argv) +{ + int c; + int i; + const char *name = argv[1]; + printf("#include <stddef.h>\n"); + printf("const unsigned char %s[] = {\n", name); + i = 0; + while((c = getchar()) != EOF) { + if ((i % 16) != 0) { + putchar(' '); + } + printf("0x%02x,", c); + i++; + if ((i %16) == 0) { + putchar('\n'); + } + } + putchar('\n'); + printf("};\n"); + printf("size_t %s_size = sizeof(%s);\n", name, name); + return 0; +} diff --git a/util_lib/Makefile b/util_lib/Makefile new file mode 100644 index 00000000..4e1a01d5 --- /dev/null +++ b/util_lib/Makefile @@ -0,0 +1,23 @@ +# +# Utility function library +# +UTIL_LIB_SRCS:=util_lib/compute_ip_checksum.c +UTIL_LIB_SRCS+=util_lib/sha256.c +UTIL_LIB_OBJS:=$(patsubst %.c, $(OBJDIR)/%.o, $(UTIL_LIB_SRCS)) +UTIL_LIB_DEPS:=$(patsubst %.c, $(OBJDIR)/%.d, $(UTIL_LIB_SRCS)) +UTIL_LIB:=$(OBJDIR)/libutil.a + +include $(UTIL_LIB_DEPS) + +$(UTIL_LIB_DEPS): $(OBJDIR)/%.d: %.c + $(MKDIR) -p $(@D) + $(CC) $(CFLAGS) -M $< | sed -e 's|$(patsubst %.d,%.o,$(@F))|$(patsubst %.d,%.o,$(@))|' > $@ + +$(UTIL_LIB_OBJS): $(OBJDIR)/%.o: %.c $(OBJDIR)/%.d + $(MKDIR) -p $(@D) + $(CC) $(CFLAGS) -c -o $@ $< + +$(UTIL_LIB): $(UTIL_LIB_OBJS) + $(MKDIR) -p $(@D) + $(AR) rs $(UTIL_LIB) $(UTIL_LIB_OBJS) + diff --git a/util_lib/compute_ip_checksum.c b/util_lib/compute_ip_checksum.c new file mode 100644 index 00000000..39a371b9 --- /dev/null +++ b/util_lib/compute_ip_checksum.c @@ -0,0 +1,102 @@ +/* + * kexec: Linux boots Linux + * + * Copyright (C) 2003,2004 Eric Biederman (ebiederm@xmission.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation (version 2 of the License). + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <stdint.h> +#include <ip_checksum.h> +#include <string.h> + +unsigned long compute_ip_checksum(void *addr, unsigned long length) +{ + uint16_t *ptr; + unsigned long sum; + unsigned long len; + unsigned long laddr; + /* compute an ip style checksum */ + laddr = (unsigned long )addr; + sum = 0; + if (laddr & 1) { + uint16_t buffer; + unsigned char *ptr; + /* copy the first byte into a 2 byte buffer. + * This way automatically handles the endian question + * of which byte (low or high) the last byte goes in. + */ + buffer = 0; + ptr = addr; + memcpy(&buffer, ptr, 1); + sum += buffer; + if (sum > 0xFFFF) + sum -= 0xFFFF; + length -= 1; + addr = ptr +1; + + } + len = length >> 1; + ptr = addr; + while (len--) { + sum += *(ptr++); + if (sum > 0xFFFF) + sum -= 0xFFFF; + } + addr = ptr; + if (length & 1) { + uint16_t buffer; + unsigned char *ptr; + /* copy the last byte into a 2 byte buffer. + * This way automatically handles the endian question + * of which byte (low or high) the last byte goes in. + */ + buffer = 0; + ptr = addr; + memcpy(&buffer, ptr, 1); + sum += buffer; + if (sum > 0xFFFF) + sum -= 0xFFFF; + } + return (~sum) & 0xFFFF; + +} + +unsigned long add_ip_checksums(unsigned long offset, unsigned long sum, unsigned long new) +{ + unsigned long checksum; + sum = ~sum & 0xFFFF; + new = ~new & 0xFFFF; + if (offset & 1) { + /* byte swap the sum if it came from an odd offset + * since the computation is endian independant this + * works. + */ + new = ((new >> 8) & 0xff) | ((new << 8) & 0xff00); + } + checksum = sum + new; + if (checksum > 0xFFFF) { + checksum -= 0xFFFF; + } + return (~checksum) & 0xFFFF; +} + +unsigned long negate_ip_checksum(unsigned long sum) +{ + sum = ~sum & 0xFFFF; + + sum = 0xFFFF - sum; + + return ~sum & 0xFFFF; +} diff --git a/util_lib/include/ip_checksum.h b/util_lib/include/ip_checksum.h new file mode 100644 index 00000000..5559fa4f --- /dev/null +++ b/util_lib/include/ip_checksum.h @@ -0,0 +1,8 @@ +#ifndef IP_CHECKSUM_H +#define IP_CHECKSUM_H + +unsigned long compute_ip_checksum(void *addr, unsigned long length); +unsigned long add_ip_checksums(unsigned long offset, unsigned long sum, unsigned long new); +unsigned long negate_ip_checksum(unsigned long sum); + +#endif /* IP_CHECKSUM_H */ diff --git a/util_lib/include/sha256.h b/util_lib/include/sha256.h new file mode 100644 index 00000000..b8278a18 --- /dev/null +++ b/util_lib/include/sha256.h @@ -0,0 +1,21 @@ +#ifndef SHA256_H +#define SHA256_H + +#include <stdint.h> + +typedef struct +{ + size_t total[2]; + uint32_t state[8]; + uint8_t buffer[64]; +} +sha256_context; + +typedef uint8_t sha256_digest_t[32]; + +void sha256_starts( sha256_context *ctx ); +void sha256_update( sha256_context *ctx, const uint8_t *input, size_t length ); +void sha256_finish( sha256_context *ctx, sha256_digest_t digest ); + + +#endif /* SHA256_H */ diff --git a/util_lib/sha256.c b/util_lib/sha256.c new file mode 100644 index 00000000..2e61a31c --- /dev/null +++ b/util_lib/sha256.c @@ -0,0 +1,368 @@ +/* + * FIPS-180-2 compliant SHA-256 implementation + * + * Copyright (C) 2001-2003 Christophe Devine + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <string.h> + +#include "sha256.h" + +#define GET_UINT32(n,b,i) \ +{ \ + (n) = ( (uint32_t) (b)[(i) ] << 24 ) | \ + ( (uint32_t) (b)[(i) + 1] << 16 ) | \ + ( (uint32_t) (b)[(i) + 2] << 8 ) | \ + ( (uint32_t) (b)[(i) + 3] ); \ +} + +#define PUT_UINT32(n,b,i) \ +{ \ + (b)[(i) ] = (uint8_t) ( (n) >> 24 ); \ + (b)[(i) + 1] = (uint8_t) ( (n) >> 16 ); \ + (b)[(i) + 2] = (uint8_t) ( (n) >> 8 ); \ + (b)[(i) + 3] = (uint8_t) ( (n) ); \ +} + +void sha256_starts( sha256_context *ctx ) +{ + ctx->total[0] = 0; + ctx->total[1] = 0; + + ctx->state[0] = 0x6A09E667; + ctx->state[1] = 0xBB67AE85; + ctx->state[2] = 0x3C6EF372; + ctx->state[3] = 0xA54FF53A; + ctx->state[4] = 0x510E527F; + ctx->state[5] = 0x9B05688C; + ctx->state[6] = 0x1F83D9AB; + ctx->state[7] = 0x5BE0CD19; +} + +void sha256_process( sha256_context *ctx, const uint8_t data[64] ) +{ + uint32_t temp1, temp2, W[64]; + uint32_t A, B, C, D, E, F, G, H; + + GET_UINT32( W[0], data, 0 ); + GET_UINT32( W[1], data, 4 ); + GET_UINT32( W[2], data, 8 ); + GET_UINT32( W[3], data, 12 ); + GET_UINT32( W[4], data, 16 ); + GET_UINT32( W[5], data, 20 ); + GET_UINT32( W[6], data, 24 ); + GET_UINT32( W[7], data, 28 ); + GET_UINT32( W[8], data, 32 ); + GET_UINT32( W[9], data, 36 ); + GET_UINT32( W[10], data, 40 ); + GET_UINT32( W[11], data, 44 ); + GET_UINT32( W[12], data, 48 ); + GET_UINT32( W[13], data, 52 ); + GET_UINT32( W[14], data, 56 ); + GET_UINT32( W[15], data, 60 ); + +#define SHR(x,n) ((x & 0xFFFFFFFF) >> n) +#define ROTR(x,n) (SHR(x,n) | (x << (32 - n))) + +#define S0(x) (ROTR(x, 7) ^ ROTR(x,18) ^ SHR(x, 3)) +#define S1(x) (ROTR(x,17) ^ ROTR(x,19) ^ SHR(x,10)) + +#define S2(x) (ROTR(x, 2) ^ ROTR(x,13) ^ ROTR(x,22)) +#define S3(x) (ROTR(x, 6) ^ ROTR(x,11) ^ ROTR(x,25)) + +#define F0(x,y,z) ((x & y) | (z & (x | y))) +#define F1(x,y,z) (z ^ (x & (y ^ z))) + +#define R(t) \ +( \ + W[t] = S1(W[t - 2]) + W[t - 7] + \ + S0(W[t - 15]) + W[t - 16] \ +) + +#define P(a,b,c,d,e,f,g,h,x,K) \ +{ \ + temp1 = h + S3(e) + F1(e,f,g) + K + x; \ + temp2 = S2(a) + F0(a,b,c); \ + d += temp1; h = temp1 + temp2; \ +} + + A = ctx->state[0]; + B = ctx->state[1]; + C = ctx->state[2]; + D = ctx->state[3]; + E = ctx->state[4]; + F = ctx->state[5]; + G = ctx->state[6]; + H = ctx->state[7]; + + P( A, B, C, D, E, F, G, H, W[ 0], 0x428A2F98 ); + P( H, A, B, C, D, E, F, G, W[ 1], 0x71374491 ); + P( G, H, A, B, C, D, E, F, W[ 2], 0xB5C0FBCF ); + P( F, G, H, A, B, C, D, E, W[ 3], 0xE9B5DBA5 ); + P( E, F, G, H, A, B, C, D, W[ 4], 0x3956C25B ); + P( D, E, F, G, H, A, B, C, W[ 5], 0x59F111F1 ); + P( C, D, E, F, G, H, A, B, W[ 6], 0x923F82A4 ); + P( B, C, D, E, F, G, H, A, W[ 7], 0xAB1C5ED5 ); + P( A, B, C, D, E, F, G, H, W[ 8], 0xD807AA98 ); + P( H, A, B, C, D, E, F, G, W[ 9], 0x12835B01 ); + P( G, H, A, B, C, D, E, F, W[10], 0x243185BE ); + P( F, G, H, A, B, C, D, E, W[11], 0x550C7DC3 ); + P( E, F, G, H, A, B, C, D, W[12], 0x72BE5D74 ); + P( D, E, F, G, H, A, B, C, W[13], 0x80DEB1FE ); + P( C, D, E, F, G, H, A, B, W[14], 0x9BDC06A7 ); + P( B, C, D, E, F, G, H, A, W[15], 0xC19BF174 ); + P( A, B, C, D, E, F, G, H, R(16), 0xE49B69C1 ); + P( H, A, B, C, D, E, F, G, R(17), 0xEFBE4786 ); + P( G, H, A, B, C, D, E, F, R(18), 0x0FC19DC6 ); + P( F, G, H, A, B, C, D, E, R(19), 0x240CA1CC ); + P( E, F, G, H, A, B, C, D, R(20), 0x2DE92C6F ); + P( D, E, F, G, H, A, B, C, R(21), 0x4A7484AA ); + P( C, D, E, F, G, H, A, B, R(22), 0x5CB0A9DC ); + P( B, C, D, E, F, G, H, A, R(23), 0x76F988DA ); + P( A, B, C, D, E, F, G, H, R(24), 0x983E5152 ); + P( H, A, B, C, D, E, F, G, R(25), 0xA831C66D ); + P( G, H, A, B, C, D, E, F, R(26), 0xB00327C8 ); + P( F, G, H, A, B, C, D, E, R(27), 0xBF597FC7 ); + P( E, F, G, H, A, B, C, D, R(28), 0xC6E00BF3 ); + P( D, E, F, G, H, A, B, C, R(29), 0xD5A79147 ); + P( C, D, E, F, G, H, A, B, R(30), 0x06CA6351 ); + P( B, C, D, E, F, G, H, A, R(31), 0x14292967 ); + P( A, B, C, D, E, F, G, H, R(32), 0x27B70A85 ); + P( H, A, B, C, D, E, F, G, R(33), 0x2E1B2138 ); + P( G, H, A, B, C, D, E, F, R(34), 0x4D2C6DFC ); + P( F, G, H, A, B, C, D, E, R(35), 0x53380D13 ); + P( E, F, G, H, A, B, C, D, R(36), 0x650A7354 ); + P( D, E, F, G, H, A, B, C, R(37), 0x766A0ABB ); + P( C, D, E, F, G, H, A, B, R(38), 0x81C2C92E ); + P( B, C, D, E, F, G, H, A, R(39), 0x92722C85 ); + P( A, B, C, D, E, F, G, H, R(40), 0xA2BFE8A1 ); + P( H, A, B, C, D, E, F, G, R(41), 0xA81A664B ); + P( G, H, A, B, C, D, E, F, R(42), 0xC24B8B70 ); + P( F, G, H, A, B, C, D, E, R(43), 0xC76C51A3 ); + P( E, F, G, H, A, B, C, D, R(44), 0xD192E819 ); + P( D, E, F, G, H, A, B, C, R(45), 0xD6990624 ); + P( C, D, E, F, G, H, A, B, R(46), 0xF40E3585 ); + P( B, C, D, E, F, G, H, A, R(47), 0x106AA070 ); + P( A, B, C, D, E, F, G, H, R(48), 0x19A4C116 ); + P( H, A, B, C, D, E, F, G, R(49), 0x1E376C08 ); + P( G, H, A, B, C, D, E, F, R(50), 0x2748774C ); + P( F, G, H, A, B, C, D, E, R(51), 0x34B0BCB5 ); + P( E, F, G, H, A, B, C, D, R(52), 0x391C0CB3 ); + P( D, E, F, G, H, A, B, C, R(53), 0x4ED8AA4A ); + P( C, D, E, F, G, H, A, B, R(54), 0x5B9CCA4F ); + P( B, C, D, E, F, G, H, A, R(55), 0x682E6FF3 ); + P( A, B, C, D, E, F, G, H, R(56), 0x748F82EE ); + P( H, A, B, C, D, E, F, G, R(57), 0x78A5636F ); + P( G, H, A, B, C, D, E, F, R(58), 0x84C87814 ); + P( F, G, H, A, B, C, D, E, R(59), 0x8CC70208 ); + P( E, F, G, H, A, B, C, D, R(60), 0x90BEFFFA ); + P( D, E, F, G, H, A, B, C, R(61), 0xA4506CEB ); + P( C, D, E, F, G, H, A, B, R(62), 0xBEF9A3F7 ); + P( B, C, D, E, F, G, H, A, R(63), 0xC67178F2 ); + + ctx->state[0] += A; + ctx->state[1] += B; + ctx->state[2] += C; + ctx->state[3] += D; + ctx->state[4] += E; + ctx->state[5] += F; + ctx->state[6] += G; + ctx->state[7] += H; +} + +void sha256_update( sha256_context *ctx, const uint8_t *input, size_t length ) +{ + size_t left, fill; + + if( ! length ) return; + + left = ctx->total[0] & 0x3F; + fill = 64 - left; + + ctx->total[0] += length; + ctx->total[0] &= 0xFFFFFFFF; + + if( ctx->total[0] < length ) + ctx->total[1]++; + + if( left && length >= fill ) + { + memcpy( ctx->buffer + left, input, fill ); + sha256_process( ctx, ctx->buffer ); + length -= fill; + input += fill; + left = 0; + } + + while( length >= 64 ) + { + sha256_process( ctx, input ); + length -= 64; + input += 64; + } + + if( length ) + { + memcpy(ctx->buffer + left, input, length); + } +} + +static uint8_t sha256_padding[64] = +{ + 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 +}; + +void sha256_finish( sha256_context *ctx, sha256_digest_t digest ) +{ + uint32_t last, padn; + uint32_t high, low; + uint8_t msglen[8]; + + high = ( ctx->total[0] >> 29 ) + | ( ctx->total[1] << 3 ); + low = ( ctx->total[0] << 3 ); + + PUT_UINT32( high, msglen, 0 ); + PUT_UINT32( low, msglen, 4 ); + + last = ctx->total[0] & 0x3F; + padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last ); + + sha256_update( ctx, sha256_padding, padn ); + sha256_update( ctx, msglen, 8 ); + + PUT_UINT32( ctx->state[0], digest, 0 ); + PUT_UINT32( ctx->state[1], digest, 4 ); + PUT_UINT32( ctx->state[2], digest, 8 ); + PUT_UINT32( ctx->state[3], digest, 12 ); + PUT_UINT32( ctx->state[4], digest, 16 ); + PUT_UINT32( ctx->state[5], digest, 20 ); + PUT_UINT32( ctx->state[6], digest, 24 ); + PUT_UINT32( ctx->state[7], digest, 28 ); +} + +#ifdef TEST + +#include <stdlib.h> +#include <stdio.h> + +/* + * those are the standard FIPS-180-2 test vectors + */ + +static char *msg[] = +{ + "abc", + "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq", + NULL +}; + +static char *val[] = +{ + "ba7816bf8f01cfea414140de5dae2223" \ + "b00361a396177a9cb410ff61f20015ad", + "248d6a61d20638b8e5c026930c3e6039" \ + "a33ce45964ff2167f6ecedd419db06c1", + "cdc76e5c9914fb9281a1c7e284d73e67" \ + "f1809a48a497200e046d39ccc7112cd0" +}; + +int main( int argc, char *argv[] ) +{ + FILE *f; + int i, j; + char output[65]; + sha256_context ctx; + unsigned char buf[1000]; + unsigned char sha256sum[32]; + + if( argc < 2 ) + { + printf( "\n SHA-256 Validation Tests:\n\n" ); + + for( i = 0; i < 3; i++ ) + { + printf( " Test %d ", i + 1 ); + + sha256_starts( &ctx ); + + if( i < 2 ) + { + sha256_update( &ctx, (uint8_t *) msg[i], + strlen( msg[i] ) ); + } + else + { + memset( buf, 'a', 1000 ); + + for( j = 0; j < 1000; j++ ) + { + sha256_update( &ctx, (uint8_t *) buf, 1000 ); + } + } + + sha256_finish( &ctx, sha256sum ); + + for( j = 0; j < 32; j++ ) + { + sprintf( output + j * 2, "%02x", sha256sum[j] ); + } + + if( memcmp( output, val[i], 64 ) ) + { + printf( "failed!\n" ); + return( 1 ); + } + + printf( "passed.\n" ); + } + + printf( "\n" ); + } + else + { + if( ! ( f = fopen( argv[1], "rb" ) ) ) + { + perror( "fopen" ); + return( 1 ); + } + + sha256_starts( &ctx ); + + while( ( i = fread( buf, 1, sizeof( buf ), f ) ) > 0 ) + { + sha256_update( &ctx, buf, i ); + } + + sha256_finish( &ctx, sha256sum ); + + for( j = 0; j < 32; j++ ) + { + printf( "%02x", sha256sum[j] ); + } + + printf( " %s\n", argv[1] ); + } + + return( 0 ); +} + +#endif + |