arch/powerpc/boot/Makefile - linux - Git at Google


            
            # Makefile for making ELF bootable images for booting on CHRP

            
            # using Open Firmware.

            
            #

            
            # Geert Uytterhoeven	September 1997

            
            #

            
            # Based on coffboot by Paul Mackerras

            
            # Simplified for ppc64 by Todd Inglett

            
            #

            
            # NOTE:	this code is built for 32 bit in ELF32 format even though

            
            #	it packages a 64 bit kernel.  We do this to simplify the

            
            #	bootloader and increase compatibility with OpenFirmware.

            
            #

            
            #	To this end we need to define BOOTCC, etc, as the tools

            
            #	needed to build the 32 bit image.  These are normally HOSTCC,

            
            #	but may be a third compiler if, for example, you are cross

            
            #	compiling from an intel box.  Once the 64bit ppc gcc is

            
            #	stable it will probably simply be a compiler switch to

            
            #	compile for 32bit mode.

            
            #	To make it easier to setup a cross compiler,

            
            #	CROSS32_COMPILE is setup as a prefix just like CROSS_COMPILE

            
            #	in the toplevel makefile.


            HOSTCC		:= gcc

            
            BOOTCFLAGS	:= $(HOSTCFLAGS) -fno-builtin -nostdinc -isystem \

            
            		   $(shell $(CROSS32CC) -print-file-name=include) -fPIC

            
            BOOTAFLAGS	:= -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional -nostdinc

            
            OBJCOPYFLAGS    := contents,alloc,load,readonly,data

            
            OBJCOPY_COFF_ARGS := -O aixcoff-rs6000 --set-start 0x500000

            
            OBJCOPY_MIB_ARGS  := -O aixcoff-rs6000 -R .stab -R .stabstr -R .comment


            zlib       := infblock.c infcodes.c inffast.c inflate.c inftrees.c infutil.c

            
            zlibheader := infblock.h infcodes.h inffast.h inftrees.h infutil.h

            
            zliblinuxheader := zlib.h zconf.h zutil.h


            $(addprefix $(obj)/,$(zlib) main.o): $(addprefix $(obj)/,$(zliblinuxheader)) $(addprefix $(obj)/,$(zlibheader))

            
            #$(addprefix $(obj)/,main.o): $(addprefix $(obj)/,zlib.h)


            src-boot := crt0.S string.S prom.c stdio.c main.c div64.S

            
            src-boot += $(zlib)

            
            src-boot := $(addprefix $(obj)/, $(src-boot))

            
            obj-boot := $(addsuffix .o, $(basename $(src-boot)))


            BOOTCFLAGS	+= -I$(obj) -I$(srctree)/$(obj)


            quiet_cmd_copy_zlib = COPY    $@

            
                  cmd_copy_zlib = sed "s@__attribute_used__@@;s@<linux/\([^>]\+\).*@\"\1\"@" $< > $@


            quiet_cmd_copy_zlibheader = COPY    $@

            
                  cmd_copy_zlibheader = sed "s@<linux/\([^>]\+\).*@\"\1\"@" $< > $@

            
            # stddef.h for NULL

            
            quiet_cmd_copy_zliblinuxheader = COPY    $@

            
                  cmd_copy_zliblinuxheader = sed "s@<linux/string.h>@\"string.h\"@;s@<linux/kernel.h>@<stddef.h>@;s@<linux/\([^>]\+\).*@\"\1\"@" $< > $@


            $(addprefix $(obj)/,$(zlib)): $(obj)/%: $(srctree)/lib/zlib_inflate/%

            
            	$(call cmd,copy_zlib)


            $(addprefix $(obj)/,$(zlibheader)): $(obj)/%: $(srctree)/lib/zlib_inflate/%

            
            	$(call cmd,copy_zlibheader)


            $(addprefix $(obj)/,$(zliblinuxheader)): $(obj)/%: $(srctree)/include/linux/%

            
            	$(call cmd,copy_zliblinuxheader)


            clean-files := $(zlib) $(zlibheader) $(zliblinuxheader)


            quiet_cmd_bootcc = BOOTCC  $@

            
                  cmd_bootcc = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTCFLAGS) -c -o $@ $<


            quiet_cmd_bootas = BOOTAS  $@

            
                  cmd_bootas = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTAFLAGS) -c -o $@ $<


            quiet_cmd_bootld = BOOTLD  $@

            
                  cmd_bootld = $(CROSS32LD) -T $(srctree)/$(src)/$(3) -o $@ $(2)


            $(patsubst %.c,%.o, $(filter %.c, $(src-boot))): %.o: %.c

            
            	$(call if_changed_dep,bootcc)

            
            $(patsubst %.S,%.o, $(filter %.S, $(src-boot))): %.o: %.S

            
            	$(call if_changed_dep,bootas)


            #-----------------------------------------------------------

            
            # ELF sections within the zImage bootloader/wrapper

            
            #-----------------------------------------------------------

            
            required := vmlinux.strip

            
            initrd   := initrd


            obj-sec = $(foreach section, $(1), $(patsubst %,$(obj)/kernel-%.o, $(section)))

            
            src-sec = $(foreach section, $(1), $(patsubst %,$(obj)/kernel-%.c, $(section)))

            
            gz-sec  = $(foreach section, $(1), $(patsubst %,$(obj)/kernel-%.gz, $(section)))


            hostprogs-y		:= addnote addRamDisk hack-coff


            targets += zImage.vmode zImage.initrd.vmode zImage zImage.initrd \

            
            	   zImage.coff zImage.initrd.coff miboot.image miboot.initrd.image \

            
            	   $(patsubst $(obj)/%,%, $(call obj-sec, $(required) $(initrd))) \

            
            	   $(patsubst $(obj)/%,%, $(call src-sec, $(required) $(initrd))) \

            
            	   $(patsubst $(obj)/%,%, $(call gz-sec, $(required) $(initrd))) \

            
            	   vmlinux.initrd dummy.o

            
            extra-y			:= initrd.o


            quiet_cmd_ramdisk = RAMDISK $@

            
                  cmd_ramdisk = $(obj)/addRamDisk $(obj)/ramdisk.image.gz $< $@


            quiet_cmd_stripvm = STRIP   $@

            
                  cmd_stripvm = $(STRIP) -s -R .comment $< -o $@


            vmlinux.strip: vmlinux

            
            	$(call if_changed,stripvm)

            
            $(obj)/vmlinux.initrd: vmlinux.strip $(obj)/addRamDisk $(obj)/ramdisk.image.gz

            
            	$(call if_changed,ramdisk)


            quiet_cmd_addsection = ADDSEC  $@

            
                  cmd_addsection = $(CROSS32OBJCOPY) $@ \

            
            		--add-section=.kernel:$(strip $(patsubst $(obj)/kernel-%.o,%, $@))=$(patsubst %.o,%.gz, $@) \

            
            		--set-section-flags=.kernel:$(strip $(patsubst $(obj)/kernel-%.o,%, $@))=$(OBJCOPYFLAGS)


            quiet_cmd_addnote = ADDNOTE $@

            
                  cmd_addnote = $(obj)/addnote $@


            quiet_cmd_gen-miboot = GEN     $@

            
                  cmd_gen-miboot = $(OBJCOPY) $(OBJCOPY_MIB_ARGS) \

            
            		       --add-section=$1=$(word 2, $^) $< $@


            quiet_cmd_gencoff = COFF    $@

            
                  cmd_gencoff = $(OBJCOPY) $(OBJCOPY_COFF_ARGS) $@ && \

            
            		    $(obj)/hack-coff $@


            $(call gz-sec, $(required)): $(obj)/kernel-%.gz: %

            
            	$(call if_changed,gzip)


            $(obj)/kernel-initrd.gz: $(obj)/ramdisk.image.gz

            
            	cp -f $(obj)/ramdisk.image.gz $@


            $(call src-sec, $(required) $(initrd)): $(obj)/kernel-%.c: $(obj)/kernel-%.gz

            
            	@touch $@


            $(call obj-sec, $(required) $(initrd)): $(obj)/kernel-%.o: $(obj)/kernel-%.c

            
            	$(call if_changed_dep,bootcc)

            
            	$(call cmd,addsection)


            $(obj)/zImage.vmode $(obj)/zImage.coff: obj-boot += $(call obj-sec, $(required))

            
            $(obj)/zImage.vmode: $(call obj-sec, $(required)) $(obj-boot) $(srctree)/$(src)/zImage.lds

            
            	$(call cmd,bootld,$(obj-boot),zImage.lds)


            $(obj)/zImage.initrd.vmode $(obj)/zImage.initrd.coff: obj-boot += $(call obj-sec, $(required) $(initrd))

            
            $(obj)/zImage.initrd.vmode: $(call obj-sec, $(required) $(initrd)) $(obj-boot) $(srctree)/$(src)/zImage.lds

            
            	$(call cmd,bootld,$(obj-boot),zImage.lds)


            # For 32-bit powermacs, build the COFF and miboot images

            
            # as well as the ELF images.

            
            coffimage-$(CONFIG_PPC_PMAC)-$(CONFIG_PPC32) := $(obj)/zImage.coff

            
            coffrdimg-$(CONFIG_PPC_PMAC)-$(CONFIG_PPC32) := $(obj)/zImage.initrd.coff

            
            mibootimg-$(CONFIG_PPC_PMAC)-$(CONFIG_PPC32) := $(obj)/miboot.image

            
            mibrdimg-$(CONFIG_PPC_PMAC)-$(CONFIG_PPC32)  := $(obj)/miboot.initrd.image


            $(obj)/zImage: $(obj)/zImage.vmode $(obj)/addnote $(coffimage-y-y) \

            
            			$(mibootimg-y-y)

            
            	@cp -f $< $@

            
            	$(call if_changed,addnote)


            $(obj)/zImage.initrd: $(obj)/zImage.initrd.vmode $(obj)/addnote \

            
            			$(coffrdimg-y-y) $(mibrdimg-y-y)

            
            	@cp -f $< $@

            
            	$(call if_changed,addnote)


            $(obj)/zImage.coff: $(call obj-sec, $(required)) $(obj-boot) \

            
            			$(srctree)/$(src)/zImage.coff.lds $(obj)/hack-coff

            
            	$(call cmd,bootld,$(obj-boot),zImage.coff.lds)

            
            	$(call cmd,gencoff)


            $(obj)/zImage.initrd.coff: $(call obj-sec, $(required) $(initrd)) $(obj-boot) \

            
            			   $(srctree)/$(src)/zImage.coff.lds $(obj)/hack-coff

            
            	$(call cmd,bootld,$(obj-boot),zImage.coff.lds)

            
            	$(call cmd,gencoff)


            $(obj)/miboot.image: $(obj)/dummy.o $(obj)/vmlinux.gz

            
            	$(call cmd,gen-miboot,image)


            $(obj)/miboot.initrd.image: $(obj)/miboot.image $(images)/ramdisk.image.gz

            
            	$(call cmd,gen-miboot,initrd)


            #-----------------------------------------------------------

            
            # build u-boot images

            
            #-----------------------------------------------------------

            
            quiet_cmd_mygzip = GZIP $@

            
            cmd_mygzip = gzip -f -9 < $< > $@.$$$$ && mv $@.$$$$ $@


            quiet_cmd_objbin = OBJCOPY $@

            
                  cmd_objbin = $(OBJCOPY) -O binary $< $@


            quiet_cmd_uimage = UIMAGE $@

            
                  cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A ppc -O linux -T kernel \

            
                           -C gzip -a 00000000 -e 00000000 -n 'Linux-$(KERNELRELEASE)' \

            
                           -d $< $@


            MKIMAGE		:= $(srctree)/scripts/mkuboot.sh

            
            targets		+= uImage

            
            extra-y		+= vmlinux.bin vmlinux.gz


            $(obj)/vmlinux.bin: vmlinux FORCE

            
            	$(call if_changed,objbin)


            $(obj)/vmlinux.gz: $(obj)/vmlinux.bin FORCE

            
            	$(call if_changed,mygzip)


            $(obj)/uImage: $(obj)/vmlinux.gz

            
            	$(Q)rm -f $@

            
            	$(call cmd,uimage)

            
            	@echo -n '  Image: $@ '

            
            	@if [ -f $@ ]; then echo 'is ready' ; else echo 'not made'; fi


            install: $(CONFIGURE) $(BOOTIMAGE)

            
            	sh -x $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" vmlinux System.map "$(INSTALL_PATH)" "$(BOOTIMAGE)"


            clean-files += $(addprefix $(objtree)/, $(obj-boot) vmlinux.strip)
	# Makefile for making ELF bootable images for booting on CHRP
	# using Open Firmware.
	#
	# Geert Uytterhoeven September 1997
	#
	# Based on coffboot by Paul Mackerras
	# Simplified for ppc64 by Todd Inglett
	#
	# NOTE: this code is built for 32 bit in ELF32 format even though
	# it packages a 64 bit kernel. We do this to simplify the
	# bootloader and increase compatibility with OpenFirmware.
	#
	# To this end we need to define BOOTCC, etc, as the tools
	# needed to build the 32 bit image. These are normally HOSTCC,
	# but may be a third compiler if, for example, you are cross
	# compiling from an intel box. Once the 64bit ppc gcc is
	# stable it will probably simply be a compiler switch to
	# compile for 32bit mode.
	# To make it easier to setup a cross compiler,
	# CROSS32_COMPILE is setup as a prefix just like CROSS_COMPILE
	# in the toplevel makefile.


	HOSTCC := gcc
	BOOTCFLAGS := $(HOSTCFLAGS) -fno-builtin -nostdinc -isystem \
	$(shell $(CROSS32CC) -print-file-name=include) -fPIC
	BOOTAFLAGS := -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional -nostdinc
	OBJCOPYFLAGS := contents,alloc,load,readonly,data
	OBJCOPY_COFF_ARGS := -O aixcoff-rs6000 --set-start 0x500000
	OBJCOPY_MIB_ARGS := -O aixcoff-rs6000 -R .stab -R .stabstr -R .comment

	zlib := infblock.c infcodes.c inffast.c inflate.c inftrees.c infutil.c
	zlibheader := infblock.h infcodes.h inffast.h inftrees.h infutil.h
	zliblinuxheader := zlib.h zconf.h zutil.h

	$(addprefix $(obj)/,$(zlib) main.o): $(addprefix $(obj)/,$(zliblinuxheader)) $(addprefix $(obj)/,$(zlibheader))
	#$(addprefix $(obj)/,main.o): $(addprefix $(obj)/,zlib.h)

	src-boot := crt0.S string.S prom.c stdio.c main.c div64.S
	src-boot += $(zlib)
	src-boot := $(addprefix $(obj)/, $(src-boot))
	obj-boot := $(addsuffix .o, $(basename $(src-boot)))

	BOOTCFLAGS += -I$(obj) -I$(srctree)/$(obj)

	quiet_cmd_copy_zlib = COPY $@
	cmd_copy_zlib = sed "s@__attribute_used__@@;s@<linux/\([^>]\+\).*@\"\1\"@" $< > $@

	quiet_cmd_copy_zlibheader = COPY $@
	cmd_copy_zlibheader = sed "s@<linux/\([^>]\+\).*@\"\1\"@" $< > $@
	# stddef.h for NULL
	quiet_cmd_copy_zliblinuxheader = COPY $@
	cmd_copy_zliblinuxheader = sed "s@<linux/string.h>@\"string.h\"@;s@<linux/kernel.h>@<stddef.h>@;s@<linux/\([^>]\+\).*@\"\1\"@" $< > $@

	$(addprefix $(obj)/,$(zlib)): $(obj)/%: $(srctree)/lib/zlib_inflate/%
	$(call cmd,copy_zlib)

	$(addprefix $(obj)/,$(zlibheader)): $(obj)/%: $(srctree)/lib/zlib_inflate/%
	$(call cmd,copy_zlibheader)

	$(addprefix $(obj)/,$(zliblinuxheader)): $(obj)/%: $(srctree)/include/linux/%
	$(call cmd,copy_zliblinuxheader)

	clean-files := $(zlib) $(zlibheader) $(zliblinuxheader)


	quiet_cmd_bootcc = BOOTCC $@
	cmd_bootcc = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTCFLAGS) -c -o $@ $<

	quiet_cmd_bootas = BOOTAS $@
	cmd_bootas = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTAFLAGS) -c -o $@ $<

	quiet_cmd_bootld = BOOTLD $@
	cmd_bootld = $(CROSS32LD) -T $(srctree)/$(src)/$(3) -o $@ $(2)

	$(patsubst %.c,%.o, $(filter %.c, $(src-boot))): %.o: %.c
	$(call if_changed_dep,bootcc)
	$(patsubst %.S,%.o, $(filter %.S, $(src-boot))): %.o: %.S
	$(call if_changed_dep,bootas)

	#-----------------------------------------------------------
	# ELF sections within the zImage bootloader/wrapper
	#-----------------------------------------------------------
	required := vmlinux.strip
	initrd := initrd

	obj-sec = $(foreach section, $(1), $(patsubst %,$(obj)/kernel-%.o, $(section)))
	src-sec = $(foreach section, $(1), $(patsubst %,$(obj)/kernel-%.c, $(section)))
	gz-sec = $(foreach section, $(1), $(patsubst %,$(obj)/kernel-%.gz, $(section)))

	hostprogs-y := addnote addRamDisk hack-coff

	targets += zImage.vmode zImage.initrd.vmode zImage zImage.initrd \
	zImage.coff zImage.initrd.coff miboot.image miboot.initrd.image \
	$(patsubst $(obj)/%,%, $(call obj-sec, $(required) $(initrd))) \
	$(patsubst $(obj)/%,%, $(call src-sec, $(required) $(initrd))) \
	$(patsubst $(obj)/%,%, $(call gz-sec, $(required) $(initrd))) \
	vmlinux.initrd dummy.o
	extra-y := initrd.o

	quiet_cmd_ramdisk = RAMDISK $@
	cmd_ramdisk = $(obj)/addRamDisk $(obj)/ramdisk.image.gz $< $@

	quiet_cmd_stripvm = STRIP $@
	cmd_stripvm = $(STRIP) -s -R .comment $< -o $@

	vmlinux.strip: vmlinux
	$(call if_changed,stripvm)
	$(obj)/vmlinux.initrd: vmlinux.strip $(obj)/addRamDisk $(obj)/ramdisk.image.gz
	$(call if_changed,ramdisk)

	quiet_cmd_addsection = ADDSEC $@
	cmd_addsection = $(CROSS32OBJCOPY) $@ \
	--add-section=.kernel:$(strip $(patsubst $(obj)/kernel-%.o,%, $@))=$(patsubst %.o,%.gz, $@) \
	--set-section-flags=.kernel:$(strip $(patsubst $(obj)/kernel-%.o,%, $@))=$(OBJCOPYFLAGS)

	quiet_cmd_addnote = ADDNOTE $@
	cmd_addnote = $(obj)/addnote $@

	quiet_cmd_gen-miboot = GEN $@
	cmd_gen-miboot = $(OBJCOPY) $(OBJCOPY_MIB_ARGS) \
	--add-section=$1=$(word 2, $^) $< $@

	quiet_cmd_gencoff = COFF $@
	cmd_gencoff = $(OBJCOPY) $(OBJCOPY_COFF_ARGS) $@ && \
	$(obj)/hack-coff $@

	$(call gz-sec, $(required)): $(obj)/kernel-%.gz: %
	$(call if_changed,gzip)

	$(obj)/kernel-initrd.gz: $(obj)/ramdisk.image.gz
	cp -f $(obj)/ramdisk.image.gz $@

	$(call src-sec, $(required) $(initrd)): $(obj)/kernel-%.c: $(obj)/kernel-%.gz
	@touch $@

	$(call obj-sec, $(required) $(initrd)): $(obj)/kernel-%.o: $(obj)/kernel-%.c
	$(call if_changed_dep,bootcc)
	$(call cmd,addsection)

	$(obj)/zImage.vmode $(obj)/zImage.coff: obj-boot += $(call obj-sec, $(required))
	$(obj)/zImage.vmode: $(call obj-sec, $(required)) $(obj-boot) $(srctree)/$(src)/zImage.lds
	$(call cmd,bootld,$(obj-boot),zImage.lds)

	$(obj)/zImage.initrd.vmode $(obj)/zImage.initrd.coff: obj-boot += $(call obj-sec, $(required) $(initrd))
	$(obj)/zImage.initrd.vmode: $(call obj-sec, $(required) $(initrd)) $(obj-boot) $(srctree)/$(src)/zImage.lds
	$(call cmd,bootld,$(obj-boot),zImage.lds)

	# For 32-bit powermacs, build the COFF and miboot images
	# as well as the ELF images.
	coffimage-$(CONFIG_PPC_PMAC)-$(CONFIG_PPC32) := $(obj)/zImage.coff
	coffrdimg-$(CONFIG_PPC_PMAC)-$(CONFIG_PPC32) := $(obj)/zImage.initrd.coff
	mibootimg-$(CONFIG_PPC_PMAC)-$(CONFIG_PPC32) := $(obj)/miboot.image
	mibrdimg-$(CONFIG_PPC_PMAC)-$(CONFIG_PPC32) := $(obj)/miboot.initrd.image

	$(obj)/zImage: $(obj)/zImage.vmode $(obj)/addnote $(coffimage-y-y) \
	$(mibootimg-y-y)
	@cp -f $< $@
	$(call if_changed,addnote)

	$(obj)/zImage.initrd: $(obj)/zImage.initrd.vmode $(obj)/addnote \
	$(coffrdimg-y-y) $(mibrdimg-y-y)
	@cp -f $< $@
	$(call if_changed,addnote)

	$(obj)/zImage.coff: $(call obj-sec, $(required)) $(obj-boot) \
	$(srctree)/$(src)/zImage.coff.lds $(obj)/hack-coff
	$(call cmd,bootld,$(obj-boot),zImage.coff.lds)
	$(call cmd,gencoff)

	$(obj)/zImage.initrd.coff: $(call obj-sec, $(required) $(initrd)) $(obj-boot) \
	$(srctree)/$(src)/zImage.coff.lds $(obj)/hack-coff
	$(call cmd,bootld,$(obj-boot),zImage.coff.lds)
	$(call cmd,gencoff)

	$(obj)/miboot.image: $(obj)/dummy.o $(obj)/vmlinux.gz
	$(call cmd,gen-miboot,image)

	$(obj)/miboot.initrd.image: $(obj)/miboot.image $(images)/ramdisk.image.gz
	$(call cmd,gen-miboot,initrd)

	#-----------------------------------------------------------
	# build u-boot images
	#-----------------------------------------------------------
	quiet_cmd_mygzip = GZIP $@
	cmd_mygzip = gzip -f -9 < $< > $@.$$$$ && mv $@.$$$$ $@

	quiet_cmd_objbin = OBJCOPY $@
	cmd_objbin = $(OBJCOPY) -O binary $< $@

	quiet_cmd_uimage = UIMAGE $@
	cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A ppc -O linux -T kernel \
	-C gzip -a 00000000 -e 00000000 -n 'Linux-$(KERNELRELEASE)' \
	-d $< $@

	MKIMAGE := $(srctree)/scripts/mkuboot.sh
	targets += uImage
	extra-y += vmlinux.bin vmlinux.gz

	$(obj)/vmlinux.bin: vmlinux FORCE
	$(call if_changed,objbin)

	$(obj)/vmlinux.gz: $(obj)/vmlinux.bin FORCE
	$(call if_changed,mygzip)

	$(obj)/uImage: $(obj)/vmlinux.gz
	$(Q)rm -f $@
	$(call cmd,uimage)
	@echo -n ' Image: $@ '
	@if [ -f $@ ]; then echo 'is ready' ; else echo 'not made'; fi

	install: $(CONFIGURE) $(BOOTIMAGE)
	sh -x $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" vmlinux System.map "$(INSTALL_PATH)" "$(BOOTIMAGE)"

	clean-files += $(addprefix $(objtree)/, $(obj-boot) vmlinux.strip)