diff options
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 131 |
1 files changed, 73 insertions, 58 deletions
diff --git a/Makefile b/Makefile index f937f1f4595e84..deedaf79cdca23 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 2 PATCHLEVEL = 6 SUBLEVEL = 15 -EXTRAVERSION =-rc7 +EXTRAVERSION = NAME=Sliding Snow Leopard # *DOCUMENTATION* @@ -141,24 +141,6 @@ VPATH := $(srctree) export srctree objtree VPATH TOPDIR -nullstring := -space := $(nullstring) # end of line - -# Take the contents of any files called localversion* and the config -# variable CONFIG_LOCALVERSION and append them to KERNELRELEASE. Be -# careful not to include files twice if building in the source -# directory. LOCALVERSION from the command line override all of this - -localver := $(objtree)/localversion* $(srctree)/localversion* -localver := $(sort $(wildcard $(localver))) -# skip backup files (containing '~') -localver := $(foreach f, $(localver), $(if $(findstring ~, $(f)),,$(f))) - -LOCALVERSION = $(subst $(space),, \ - $(shell cat /dev/null $(localver)) \ - $(patsubst "%",%,$(CONFIG_LOCALVERSION))) - -KERNELRELEASE=$(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)$(LOCALVERSION) # SUBARCH tells the usermode build what the underlying arch is. That is set # first, and if a usermode build is happening, the "ARCH=um" on the command @@ -251,7 +233,7 @@ export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD # If it is set to "silent_", nothing wil be printed at all, since # the variable $(silent_cmd_cc_o_c) doesn't exist. # -# A simple variant is to prefix commands with $(Q) - that's usefull +# A simple variant is to prefix commands with $(Q) - that's useful # for commands that shall be hidden in non-verbose mode. # # $(Q)ln $@ :< @@ -286,10 +268,6 @@ export quiet Q KBUILD_VERBOSE 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 ;) -# For backward compatibility -check_gcc = $(warning check_gcc is deprecated - use cc-option) \ - $(call cc-option, $(1),$(2)) - # cc-option-yn # Usage: flag := $(call cc-option-yn, -march=winchip-c6) cc-option-yn = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \ @@ -357,7 +335,10 @@ CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ -ffreestanding AFLAGS := -D__ASSEMBLY__ -export VERSION PATCHLEVEL SUBLEVEL EXTRAVERSION LOCALVERSION KERNELRELEASE \ +# Read KERNELRELEASE from .kernelrelease (if it exists) +KERNELRELEASE = $(shell cat .kernelrelease 2> /dev/null) + +export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE \ ARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC \ CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE \ HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS @@ -481,18 +462,20 @@ ifeq ($(dot-config),1) # Read in dependencies to all Kconfig* files, make sure to run # oldconfig if changes are detected. --include .config.cmd +-include .kconfig.d include .config # If .config needs to be updated, it will be done via the dependency # that autoconf has on .config. # To avoid any implicit rule to kick in, define an empty command -.config: ; +.config .kconfig.d: ; # If .config is newer than include/linux/autoconf.h, someone tinkered -# with it and forgot to run make oldconfig -include/linux/autoconf.h: .config +# with it and forgot to run make oldconfig. +# If kconfig.d is missing then we are probarly in a cleaned tree so +# we execute the config step to be sure to catch updated Kconfig files +include/linux/autoconf.h: .kconfig.d .config $(Q)mkdir -p include/linux $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig else @@ -553,26 +536,6 @@ export KBUILD_IMAGE ?= vmlinux # images. Default is /boot, but you can set it to other values export INSTALL_PATH ?= /boot -# If CONFIG_LOCALVERSION_AUTO is set, we automatically perform some tests -# and try to determine if the current source tree is a release tree, of any sort, -# or if is a pure development tree. -# -# A 'release tree' is any tree with a git TAG associated -# with it. The primary goal of this is to make it safe for a native -# git/CVS/SVN user to build a release tree (i.e, 2.6.9) and also to -# continue developing against the current Linus tree, without having the Linus -# tree overwrite the 2.6.9 tree when installed. -# -# Currently, only git is supported. -# Other SCMs can edit scripts/setlocalversion and add the appropriate -# checks as needed. - - -ifdef CONFIG_LOCALVERSION_AUTO - localversion-auto := $(shell $(PERL) $(srctree)/scripts/setlocalversion $(srctree)) - LOCALVERSION := $(LOCALVERSION)$(localversion-auto) -endif - # # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory # relocations required by build roots. This is not defined in the @@ -784,6 +747,50 @@ $(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ; $(vmlinux-dirs): prepare scripts $(Q)$(MAKE) $(build)=$@ +# Build the kernel release string +# The KERNELRELEASE is stored in a file named .kernelrelease +# to be used when executing for example make install or make modules_install +# +# Take the contents of any files called localversion* and the config +# variable CONFIG_LOCALVERSION and append them to KERNELRELEASE. +# LOCALVERSION from the command line override all of this + +nullstring := +space := $(nullstring) # end of line + +___localver = $(objtree)/localversion* $(srctree)/localversion* +__localver = $(sort $(wildcard $(___localver))) +# skip backup files (containing '~') +_localver = $(foreach f, $(__localver), $(if $(findstring ~, $(f)),,$(f))) + +localver = $(subst $(space),, \ + $(shell cat /dev/null $(_localver)) \ + $(patsubst "%",%,$(CONFIG_LOCALVERSION))) + +# If CONFIG_LOCALVERSION_AUTO is set scripts/setlocalversion is called +# and if the SCM is know a tag from the SCM is appended. +# The appended tag is determinded by the SCM used. +# +# Currently, only git is supported. +# Other SCMs can edit scripts/setlocalversion and add the appropriate +# checks as needed. +ifdef CONFIG_LOCALVERSION_AUTO + _localver-auto = $(shell $(CONFIG_SHELL) \ + $(srctree)/scripts/setlocalversion $(srctree)) + localver-auto = $(LOCALVERSION)$(_localver-auto) +endif + +localver-full = $(localver)$(localver-auto) + +# Store (new) KERNELRELASE string in .kernelrelease +kernelrelease = \ + $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)$(localver-full) +.kernelrelease: FORCE + $(Q)rm -f .kernelrelease + $(Q)echo $(kernelrelease) > .kernelrelease + $(Q)echo " Building kernel $(kernelrelease)" + + # Things we need to do before we recursively start building the kernel # or the modules are listed in "prepare". # A multi level approach is used. prepareN is processed before prepareN-1. @@ -800,8 +807,7 @@ $(vmlinux-dirs): prepare scripts # and if so do: # 1) Check that make has not been executed in the kernel src $(srctree) # 2) Create the include2 directory, used for the second asm symlink - -prepare3: +prepare3: .kernelrelease ifneq ($(KBUILD_SRC),) @echo ' Using $(srctree) as source for kernel' $(Q)if [ -f $(srctree)/.config ]; then \ @@ -986,9 +992,9 @@ CLEAN_FILES += vmlinux System.map \ # Directories & files removed with 'make mrproper' MRPROPER_DIRS += include/config include2 -MRPROPER_FILES += .config .config.old include/asm .version \ +MRPROPER_FILES += .config .config.old include/asm .version .old_version \ include/linux/autoconf.h include/linux/version.h \ - Module.symvers tags TAGS cscope* + .kernelrelease Module.symvers tags TAGS cscope* # clean - Delete most, but leave enough to build external modules # @@ -1066,7 +1072,7 @@ help: @echo ' all - Build all targets marked with [*]' @echo '* vmlinux - Build the bare kernel' @echo '* modules - Build all modules' - @echo ' modules_install - Install all modules' + @echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)' @echo ' dir/ - Build all files in dir and below' @echo ' dir/file.[ois] - Build specified target only' @echo ' dir/file.ko - Build module including final link' @@ -1074,6 +1080,7 @@ help: @echo ' tags/TAGS - Generate tags file for editors' @echo ' cscope - Generate cscope index' @echo ' kernelrelease - Output the release version string' + @echo ' kernelversion - Output the version stored in Makefile' @echo '' @echo 'Static analysers' @echo ' buildcheck - List dangling references to vmlinux discarded sections' @@ -1240,8 +1247,11 @@ cscope: FORCE quiet_cmd_TAGS = MAKE $@ define cmd_TAGS rm -f $@; \ - ETAGSF=`etags --version | grep -i exuberant >/dev/null && echo "-I __initdata,__exitdata,EXPORT_SYMBOL,EXPORT_SYMBOL_GPL --extra=+f"`; \ - $(all-sources) | xargs etags $$ETAGSF -a + ETAGSF=`etags --version | grep -i exuberant >/dev/null && \ + echo "-I __initdata,__exitdata,__acquires,__releases \ + -I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL \ + --extra=+f --c-kinds=+px"`; \ + $(all-sources) | xargs etags $$ETAGSF -a endef TAGS: FORCE @@ -1251,8 +1261,11 @@ TAGS: FORCE quiet_cmd_tags = MAKE $@ define cmd_tags rm -f $@; \ - CTAGSF=`ctags --version | grep -i exuberant >/dev/null && echo "-I __initdata,__exitdata,EXPORT_SYMBOL,EXPORT_SYMBOL_GPL --extra=+f"`; \ - $(all-sources) | xargs ctags $$CTAGSF -a + CTAGSF=`ctags --version | grep -i exuberant >/dev/null && \ + echo "-I __initdata,__exitdata,__acquires,__releases \ + -I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL \ + --extra=+f --c-kinds=+px"`; \ + $(all-sources) | xargs ctags $$CTAGSF -a endef tags: FORCE @@ -1289,6 +1302,8 @@ checkstack: kernelrelease: @echo $(KERNELRELEASE) +kernelversion: + @echo $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION) # FIXME Should go into a make.lib or something # =========================================================================== |