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#
# Makefile.am - build a kernel+filesystem image for stand-alone Linux
# booting
#
# Copyright (C) 2012 ARM Limited. All rights reserved.
#
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE.txt file.
# VE
PHYS_OFFSET := $(shell perl -I $(top_srcdir) $(top_srcdir)/findmem.pl $(KERNEL_DTB))
UART_BASE := $(shell perl -I $(top_srcdir) $(top_srcdir)/findbase.pl $(KERNEL_DTB) 0 'arm,pl011')
SYSREGS_BASE := $(shell perl -I $(top_srcdir) $(top_srcdir)/findbase.pl $(KERNEL_DTB) 0 'arm,vexpress-sysreg')
CNTFRQ := 0x01800000 # 24Mhz
CPU_IDS := $(shell perl -I $(top_srcdir) $(top_srcdir)/findcpuids.pl $(KERNEL_DTB))
NR_CPUS := $(shell echo $(CPU_IDS) | tr ',' ' ' | wc -w)
DEFINES = -DCNTFRQ=$(CNTFRQ)
DEFINES += -DCPU_IDS=$(CPU_IDS)
DEFINES += -DNR_CPUS=$(NR_CPUS)
DEFINES += -DSYSREGS_BASE=$(SYSREGS_BASE)
DEFINES += -DUART_BASE=$(UART_BASE)
DEFINES += -DSTACK_SIZE=256
if KERNEL_32
DEFINES += -DKERNEL_32
PSCI_CPU_ON := 0x84000003
else
PSCI_CPU_ON := 0xc4000003
endif
PSCI_CPU_OFF := 0x84000002
OFILES =
if BOOTWRAPPER_32
CPPFLAGS += -DBOOTWRAPPER_32
CFLAGS += -marm -mno-unaligned-access
ARCH_SRC := arch/aarch32/
else
CFLAGS += -mgeneral-regs-only -mstrict-align
ARCH_SRC := arch/aarch64/
endif
if PSCI
BOOTMETHOD := psci.o
OFILES += psci.o
PSCI_NODE := psci { \
compatible = \"arm,psci\"; \
method = \"smc\"; \
cpu_on = <$(PSCI_CPU_ON)>; \
cpu_off = <$(PSCI_CPU_OFF)>; \
};
CPU_NODES := $(shell perl -I $(top_srcdir) $(top_srcdir)/addpsci.pl $(KERNEL_DTB))
else
BOOTMETHOD := spin.o
PSCI_NODE :=
CPU_NODES :=
endif
if GICV3
GIC_DIST_BASE := $(shell perl -I $(top_srcdir) $(top_srcdir)/findbase.pl $(KERNEL_DTB) 0 'arm,gic-v3')
GIC_RDIST_BASE := $(shell perl -I $(top_srcdir) $(top_srcdir)/findbase.pl $(KERNEL_DTB) 1 'arm,gic-v3')
DEFINES += -DGIC_DIST_BASE=$(GIC_DIST_BASE)
DEFINES += -DGIC_RDIST_BASE=$(GIC_RDIST_BASE)
GIC := gic-v3.o
else
GIC_DIST_BASE := $(shell perl -I $(top_srcdir) $(top_srcdir)/findbase.pl $(KERNEL_DTB) 0 'arm,cortex-a15-gic')
GIC_CPU_BASE := $(shell perl -I $(top_srcdir) $(top_srcdir)/findbase.pl $(KERNEL_DTB) 1 'arm,cortex-a15-gic')
DEFINES += -DGIC_CPU_BASE=$(GIC_CPU_BASE)
DEFINES += -DGIC_DIST_BASE=$(GIC_DIST_BASE)
GIC := gic.o
endif
if KERNEL_32
MBOX_OFFSET := 0x7ff8
KERNEL_OFFSET := 0x8000
TEXT_LIMIT := 0x3000
else
MBOX_OFFSET := 0xfff8
KERNEL_OFFSET := 0x80000
TEXT_LIMIT := 0x80000
endif
LD_SCRIPT := model.lds.S
FS_OFFSET := 0x10000000
FILESYSTEM_START:= $(shell echo $$(($(PHYS_OFFSET) + $(FS_OFFSET))))
FILESYSTEM_SIZE := $(shell stat -Lc %s $(FILESYSTEM) 2>/dev/null || echo 0)
FILESYSTEM_END := $(shell echo $$(($(FILESYSTEM_START) + $(FILESYSTEM_SIZE))))
FDT_OFFSET := 0x08000000
if XEN
XEN := -DXEN=$(XEN_IMAGE)
XEN_OFFSET := 0x08200000
KERNEL_SIZE := $(shell stat -Lc %s $(KERNEL_IMAGE) 2>/dev/null || echo 0)
DOM0_OFFSET := $(shell echo $$(($(PHYS_OFFSET) + $(KERNEL_OFFSET))))
XEN_CHOSEN := xen,xen-bootargs = \"$(XEN_CMDLINE)\"; \
\#address-cells = <2>; \
\#size-cells = <2>; \
module@1 { \
compatible = \"xen,linux-zimage\", \"xen,multiboot-module\"; \
reg = <0x0 $(DOM0_OFFSET) 0x0 $(KERNEL_SIZE)>; \
};
endif
if INITRD
INITRD_FLAGS := -DUSE_INITRD
INITRD_CHOSEN := linux,initrd-start = <$(FILESYSTEM_START)>; \
linux,initrd-end = <$(FILESYSTEM_END)>;
endif
CHOSEN_NODE := chosen { \
bootargs = \"$(CMDLINE)\"; \
$(INITRD_CHOSEN) \
$(XEN_CHOSEN) \
};
CPPFLAGS += $(INITRD_FLAGS)
CFLAGS += -I$(top_srcdir)/include/ -I$(top_srcdir)/$(ARCH_SRC)/include/
CFLAGS += -Wall -fomit-frame-pointer
CFLAGS += -ffunction-sections -fdata-sections
LDFLAGS += --gc-sections
OFILES += boot_common.o bakery_lock.o platform.o $(GIC) cache.o lib.o
OFILES += $(addprefix $(ARCH_SRC),boot.o stack.o $(BOOTMETHOD) utils.o)
# Don't lookup all prerequisites in $(top_srcdir), only the source files. When
# building outside the source tree $(ARCH_SRC) needs to be created.
VPATH =
vpath %.c $(top_srcdir)
vpath %.S $(top_srcdir)
all: $(IMAGE)
CLEANFILES = $(IMAGE) linux-system.axf xen-system.axf $(OFILES) model.lds fdt.dtb
$(IMAGE): $(OFILES) model.lds fdt.dtb $(KERNEL_IMAGE) $(FILESYSTEM) $(XEN_IMAGE)
$(LD) $(LDFLAGS) $(OFILES) -o $@ --script=model.lds
$(ARCH_SRC):
$(MKDIR_P) $@
%.o: %.S Makefile | $(ARCH_SRC)
$(CC) $(CPPFLAGS) -D__ASSEMBLY__ $(CFLAGS) $(DEFINES) -c -o $@ $<
%.o: %.c Makefile
$(CC) $(CPPFLAGS) $(CFLAGS) $(DEFINES) -c -o $@ $<
model.lds: $(LD_SCRIPT) Makefile
$(CPP) $(CPPFLAGS) -ansi -DPHYS_OFFSET=$(PHYS_OFFSET) -DMBOX_OFFSET=$(MBOX_OFFSET) -DKERNEL_OFFSET=$(KERNEL_OFFSET) -DFDT_OFFSET=$(FDT_OFFSET) -DFS_OFFSET=$(FS_OFFSET) $(XEN) -DXEN_OFFSET=$(XEN_OFFSET) -DKERNEL=$(KERNEL_IMAGE) -DFILESYSTEM=$(FILESYSTEM) -DTEXT_LIMIT=$(TEXT_LIMIT) -P -C -o $@ $<
fdt.dtb: $(KERNEL_DTB) Makefile
( $(DTC) -O dts -I dtb $(KERNEL_DTB) ; echo "/ { $(CHOSEN_NODE) $(PSCI_NODE) }; $(CPU_NODES)" ) | $(DTC) -O dtb -o $@ -
# The filesystem archive might not exist if INITRD is not being used
.PHONY: all clean $(FILESYSTEM)
MAINTAINERCLEANFILES = aclocal.m4 compile config.* configure install-sh \
Makefile.in missing
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