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|
# Makefile for making bootable images on various OpenFirmware machines.
#
# Paul Mackerras January 1997
# XCOFF bootable images for PowerMacs
# Geert Uytterhoeven September 1997
# ELF bootable iamges for CHRP machines.
# Tom Rini January 2001
# Cleaned up, moved into arch/ppc/boot/pmac
# Tom Rini July/August 2002
# Merged 'chrp' and 'pmac' into 'openfirmware', and cleaned up the
# rules.
zImage.initrd znetboot.initrd: del-ramdisk-sec := -R .ramdisk
zImage.initrd znetboot.initrd: initrd := .initrd
boot := arch/ppc/boot
common := $(boot)/common
utils := $(boot)/utils
bootlib := $(boot)/lib
of1275 := $(boot)/of1275
images := $(boot)/images
OBJCOPY_ARGS := -O aixcoff-rs6000 -R .stab -R .stabstr -R .comment
COFF_LD_ARGS := -T $(srctree)/$(boot)/ld.script -e _start -Ttext 0x00500000 \
-Bstatic
CHRP_LD_ARGS := -T $(srctree)/$(boot)/ld.script -e _start -Ttext 0x00800000
NEWWORLD_LD_ARGS:= -T $(srctree)/$(boot)/ld.script -e _start -Ttext 0x01000000
COMMONOBJS := start.o misc.o common.o
COFFOBJS := coffcrt0.o $(COMMONOBJS) coffmain.o
CHRPOBJS := crt0.o $(COMMONOBJS) chrpmain.o
NEWWORLDOBJS := crt0.o $(COMMONOBJS) newworldmain.o
targets := $(COFFOBJS) $(CHRPOBJS) $(NEWWORLDOBJS) dummy.o
COFFOBJS := $(addprefix $(obj)/, $(COFFOBJS))
CHRPOBJS := $(addprefix $(obj)/, $(CHRPOBJS))
NEWWORLDOBJS := $(addprefix $(obj)/, $(NEWWORLDOBJS))
LIBS := lib/lib.a $(bootlib)/lib.a $(of1275)/lib.a $(common)/lib.a
HACKCOFF := $(utils)/hack-coff
ifdef CONFIG_SMP
END := .smp
endif
ifdef CONFIG_PPC64BRIDGE
END += .64
endif
$(images)/ramdisk.image.gz:
@echo ' MISSING $@'
@echo ' RAM disk image must be provided separately'
@/bin/false
quiet_cmd_genimage = GEN $@
cmd_genimage = $(OBJCOPY) -R .comment \
--add-section=.image=$(images)/vmlinux.gz \
--set-section-flags=.image=contents,alloc,load,readonly,data $< $@
targets += image.o
$(obj)/image.o: $(obj)/dummy.o $(images)/vmlinux.gz FORCE
$(call if_changed,genimage)
# Place the ramdisk in the initrd image.
quiet_cmd_genimage-initrd = GEN $@
cmd_genimage-initrd = $(OBJCOPY) $< $@ \
--add-section=.ramdisk=$(images)/ramdisk.image.gz \
--set-section-flags=.ramdisk=contents,alloc,load,readonly,data
targets += image.initrd.o
$(obj)/image.initrd.o: $(obj)/image.o $(images)/ramdisk.image.gz FORCE
$(call if_changed,genimage-initrd)
# Create the note section for New-World PowerMacs.
quiet_cmd_mknote = MKNOTE $@
cmd_mknote = $(utils)/mknote > $@
targets += note
$(obj)/note: $(utils)/mknote FORCE
$(call if_changed,mknote)
$(obj)/coffcrt0.o: EXTRA_AFLAGS := -traditional -DXCOFF
$(obj)/crt0.o: EXTRA_AFLAGS := -traditional
targets += coffcrt0.o crt0.o
$(obj)/coffcrt0.o $(obj)/crt0.o: $(common)/crt0.S FORCE
$(call if_changed_dep,as_o_S)
quiet_cmd_gencoffb = COFF $@
cmd_gencoffb = $(LD) -o $@ $(COFF_LD_ARGS) $(COFFOBJS) $< $(LIBS) && \
$(OBJCOPY) $@ $@ -R .comment $(del-ramdisk-sec)
targets += coffboot
$(obj)/coffboot: $(obj)/image.o $(COFFOBJS) $(LIBS) $(srctree)/$(boot)/ld.script FORCE
$(call if_changed,gencoffb)
targets += coffboot.initrd
$(obj)/coffboot.initrd: $(obj)/image.initrd.o $(COFFOBJS) $(LIBS) \
$(srctree)/$(boot)/ld.script FORCE
$(call if_changed,gencoffb)
quiet_cmd_gen-coff = COFF $@
cmd_gen-coff = $(OBJCOPY) $(OBJCOPY_ARGS) $< $@ && \
$(HACKCOFF) $@ && \
ln -sf $(notdir $@) $(images)/zImage$(initrd).pmac
$(images)/vmlinux.coff: $(obj)/coffboot
$(call cmd,gen-coff)
$(images)/vmlinux.initrd.coff: $(obj)/coffboot.initrd
$(call cmd,gen-coff)
quiet_cmd_gen-elf-pmac = ELF $@
cmd_gen-elf-pmac = $(LD) $(NEWWORLD_LD_ARGS) -o $@ \
$(NEWWORLDOBJS) $(LIBS) $< && \
$(OBJCOPY) $@ $@ --add-section=.note=$(obj)/note \
-R .comment $(del-ramdisk-sec)
$(images)/vmlinux.elf-pmac: $(obj)/image.o $(NEWWORLDOBJS) $(LIBS) \
$(obj)/note $(srctree)/$(boot)/ld.script
$(call cmd,gen-elf-pmac)
$(images)/vmlinux.initrd.elf-pmac: $(obj)/image.initrd.o $(NEWWORLDOBJS) \
$(LIBS) $(obj)/note \
$(srctree)/$(boot)/ld.script
$(call cmd,gen-elf-pmac)
quiet_cmd_gen-chrp = CHRP $@
cmd_gen-chrp = $(LD) $(CHRP_LD_ARGS) -o $@ $(CHRPOBJS) $< $(LIBS) && \
$(OBJCOPY) $@ $@ -R .comment $(del-ramdisk-sec)
$(images)/zImage.chrp: $(obj)/image.o $(CHRPOBJS) $(LIBS) \
$(srctree)/$(boot)/ld.script
$(call cmd,gen-chrp)
$(images)/zImage.initrd.chrp: $(obj)/image.initrd.o $(CHRPOBJS) $(LIBS) \
$(srctree)/$(boot)/ld.script
$(call cmd,gen-chrp)
quiet_cmd_addnote = ADDNOTE $@
cmd_addnote = cat $< > $@ && $(utils)/addnote $@
$(images)/zImage.chrp-rs6k $(images)/zImage.initrd.chrp-rs6k: \
%-rs6k: %
$(call cmd,addnote)
quiet_cmd_gen-miboot = GEN $@
cmd_gen-miboot = $(OBJCOPY) $(OBJCOPY_ARGS) \
--add-section=$1=$(word 2, $^) $< $@
$(images)/miboot.image: $(obj)/dummy.o $(images)/vmlinux.gz
$(call cmd,gen-miboot,image)
$(images)/miboot.initrd.image: $(images)/miboot.image $(images)/ramdisk.image.gz
$(call cmd,gen-miboot,initrd)
# The targets used on the make command-line
.PHONY: zImage zImage.initrd
zImage: $(images)/vmlinux.coff \
$(images)/vmlinux.elf-pmac \
$(images)/zImage.chrp \
$(images)/zImage.chrp-rs6k \
$(images)/miboot.image
@echo ' kernel: $@ is ready ($<)'
zImage.initrd: $(images)/vmlinux.initrd.coff \
$(images)/vmlinux.initrd.elf-pmac \
$(images)/zImage.initrd.chrp \
$(images)/zImage.initrd.chrp-rs6k \
$(images)/miboot.initrd.image
@echo ' kernel: $@ is ready ($<)'
TFTPIMAGE := /tftpboot/zImage
.PHONY: znetboot znetboot.initrd
znetboot: $(images)/vmlinux.coff \
$(images)/vmlinux.elf-pmac \
$(images)/zImage.chrp
cp $(images)/vmlinux.coff $(TFTPIMAGE).pmac$(END)
cp $(images)/vmlinux.elf-pmac $(TFTPIMAGE).pmac$(END).elf
cp $(images)/zImage.chrp $(TFTPIMAGE).chrp$(END)
@echo ' kernel: $@ is ready ($<)'
znetboot.initrd:$(images)/vmlinux.initrd.coff \
$(images)/vmlinux.initrd.elf-pmac \
$(images)/zImage.initrd.chrp
cp $(images)/vmlinux.initrd.coff $(TFTPIMAGE).pmac$(END)
cp $(images)/vmlinux.initrd.elf-pmac $(TFTPIMAGE).pmac$(END).elf
cp $(images)/zImage.initrd.chrp $(TFTPIMAGE).chrp$(END)
@echo ' kernel: $@ is ready ($<)'
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