From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Message-ID: <17682.28743.743974.786724@cargo.ozlabs.ibm.com> Date: Thu, 21 Sep 2006 20:58:15 +1000 From: Paul Mackerras To: linuxppc-dev@ozlabs.org Subject: [RFC/PATCH] Create a "wrapper" script and use it in arch/powerpc/boot List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , This puts the knowledge of how to create various sorts of zImage wrappers into a script called "wrapper" that could be used outside of the kernel tree. This also changes arch/powerpc/boot so it first builds the files that the wrapper script needs, then runs it to create whatever flavours of zImage are required. I haven't merged the uImage building stuff into this framework yet - somebody want to send me a patch to do that? Also, this probably doesn't do the right thing for maple, cell, etc. Another point to note is that this renames the images: the one for pSeries is called zImage.pseries rather than zImage, and the one for powermacs is now zImage.pmac rather than zImage.vmode. Signed-off-by: Paul Mackerras --- diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile index 01667d1..2bfb7ee 100644 --- a/arch/powerpc/Makefile +++ b/arch/powerpc/Makefile @@ -20,6 +20,7 @@ CROSS32_COMPILE ?= CROSS32CC := $(CROSS32_COMPILE)gcc CROSS32AS := $(CROSS32_COMPILE)as CROSS32LD := $(CROSS32_COMPILE)ld +CROSS32AR := $(CROSS32_COMPILE)ar CROSS32OBJCOPY := $(CROSS32_COMPILE)objcopy ifeq ($(HAS_BIARCH),y) @@ -28,10 +29,11 @@ CROSS32CC := $(CC) -m32 CROSS32AS := $(AS) -a32 CROSS32LD := $(LD) -m elf32ppc CROSS32OBJCOPY := $(OBJCOPY) +CROSS32AR := $(AR) endif endif -export CROSS32CC CROSS32AS CROSS32LD CROSS32OBJCOPY +export CROSS32CC CROSS32AS CROSS32LD CROSS32AR CROSS32OBJCOPY KBUILD_DEFCONFIG := $(shell uname -m)_defconfig diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile index e737741..95b0cdf 100644 --- a/arch/powerpc/boot/Makefile +++ b/arch/powerpc/boot/Makefile @@ -20,33 +20,34 @@ # To make it easier to setup a cross com # CROSS32_COMPILE is setup as a prefix just like CROSS_COMPILE # in the toplevel makefile. +all: $(obj)/zImage HOSTCC := gcc BOOTCFLAGS := $(HOSTCFLAGS) -fno-builtin -nostdinc -isystem \ $(shell $(CROSS32CC) -print-file-name=include) -fPIC BOOTAFLAGS := -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional -nostdinc -OBJCOPYFLAGS := contents,alloc,load,readonly,data -OBJCOPY_COFF_ARGS := -O aixcoff-rs6000 --set-start 0x500000 -OBJCOPY_MIB_ARGS := -O aixcoff-rs6000 -R .stab -R .stabstr -R .comment + +ifeq ($(call cc-option-yn, -fstack-protector),y) +BOOTCFLAGS += -fno-stack-protector +endif + +BOOTCFLAGS += -I$(obj) -I$(srctree)/$(obj) zlib := inffast.c inflate.c inftrees.c zlibheader := inffast.h inffixed.h inflate.h inftrees.h infutil.h zliblinuxheader := zlib.h zconf.h zutil.h -$(addprefix $(obj)/,$(zlib) main.o): $(addprefix $(obj)/,$(zliblinuxheader)) $(addprefix $(obj)/,$(zlibheader)) -#$(addprefix $(obj)/,main.o): $(addprefix $(obj)/,zlib.h) +$(addprefix $(obj)/,$(zlib) main.o): $(addprefix $(obj)/,$(zliblinuxheader)) \ + $(addprefix $(obj)/,$(zlibheader)) + +src-wlib := string.S stdio.c main.c div64.S $(zlib) +src-plat := of.c +src-boot := crt0.S $(src-wlib) $(src-plat) empty.c -src-boot-$(CONFIG_PPC_MULTIPLATFORM) := of.c -src-boot := crt0.S string.S stdio.c main.c div64.S $(src-boot-y) -src-boot += $(zlib) src-boot := $(addprefix $(obj)/, $(src-boot)) obj-boot := $(addsuffix .o, $(basename $(src-boot))) - -ifeq ($(call cc-option-yn, -fstack-protector),y) -BOOTCFLAGS += -fno-stack-protector -endif - -BOOTCFLAGS += -I$(obj) -I$(srctree)/$(obj) +obj-wlib := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-wlib)))) +obj-plat := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-plat)))) quiet_cmd_copy_zlib = COPY $@ cmd_copy_zlib = sed "s@__attribute_used__@@;s@]\+\).*@\"\1\"@" $< > $@ @@ -66,8 +67,14 @@ quiet_cmd_copy_zliblinuxheader = COPY $(addprefix $(obj)/,$(zliblinuxheader)): $(obj)/%: $(srctree)/include/linux/% $(call cmd,copy_zliblinuxheader) -clean-files := $(zlib) $(zlibheader) $(zliblinuxheader) +$(obj)/empty.c: + @touch $@ +$(obj)/zImage.lds $(obj)/zImage.coff.lds: $(obj)/%: $(srctree)/$(src)/%.S + @cp $< $@ + +clean-files := $(zlib) $(zlibheader) $(zliblinuxheader) \ + $(obj)/empty.c quiet_cmd_bootcc = BOOTCC $@ cmd_bootcc = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTCFLAGS) -c -o $@ $< @@ -75,114 +82,86 @@ quiet_cmd_bootcc = BOOTCC $@ 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) +quiet_cmd_bootar = BOOTAR $@ + cmd_bootar = $(CROSS32AR) -cr $@.$$$$ $^; mv $@.$$$$ $@ $(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)/wrapper.a: $(obj-wlib) + $(call cmd,bootar) -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 -hostprogs-y := addnote addRamDisk hack-coff +extra-y := $(obj)/crt0.o $(obj)/wrapper.a $(obj-plat) $(obj)/empty.o \ + $(obj)/zImage.lds $(obj)/zImage.coff.lds -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 +wrapper :=$(srctree)/$(src)/wrapper +wrapperbits := $(extra-y) $(addprefix $(obj)/,addnote hack-coff) -quiet_cmd_ramdisk = RAMDISK $@ - cmd_ramdisk = $(obj)/addRamDisk $(obj)/ramdisk.image.gz $< $@ +############# +# Bits for building various flavours of zImage -quiet_cmd_stripvm = STRIP $@ - cmd_stripvm = $(STRIP) -s -R .comment $< -o $@ +ifneq ($(CROSS32_COMPILE),) +CROSSWRAP := -C $(CROSS32_COMPILE) +else +ifneq ($(CROSS_COMPILE),) +CROSSWRAP := -C $(CROSS_COMPILE) +endif +endif -vmlinux.strip: vmlinux - $(call if_changed,stripvm) -$(obj)/vmlinux.initrd: vmlinux.strip $(obj)/addRamDisk $(obj)/ramdisk.image.gz - $(call if_changed,ramdisk) +quiet_cmd_wrap = WRAP $@ + cmd_wrap =$(wrapper) -c -o $@ -p $2 $(CROSSWRAP) vmlinux +quiet_cmd_wrap_initrd = WRAP $@ + cmd_wrap_initrd =$(wrapper) -c -o $@ -p $2 $(CROSSWRAP) \ + -i $(obj)/ramdisk.image.gz vmlinux -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) +$(obj)/zImage.chrp: vmlinux $(wrapperbits) + $(call cmd,wrap,chrp) -quiet_cmd_addnote = ADDNOTE $@ - cmd_addnote = $(obj)/addnote $@ +$(obj)/zImage.initrd.chrp: vmlinux $(wrapperbits) + $(call cmd,wrap_initrd,chrp) -quiet_cmd_gen-miboot = GEN $@ - cmd_gen-miboot = $(OBJCOPY) $(OBJCOPY_MIB_ARGS) \ - --add-section=$1=$(word 2, $^) $< $@ +$(obj)/zImage.pseries: vmlinux $(wrapperbits) + $(call cmd,wrap,pseries) -quiet_cmd_gencoff = COFF $@ - cmd_gencoff = $(OBJCOPY) $(OBJCOPY_COFF_ARGS) $@ && \ - $(obj)/hack-coff $@ +$(obj)/zImage.initrd.pseries: vmlinux $(wrapperbits) + $(call cmd,wrap_initrd,pseries) -$(call gz-sec, $(required)): $(obj)/kernel-%.gz: % - $(call if_changed,gzip) +$(obj)/zImage.pmac: vmlinux $(wrapperbits) + $(call cmd,wrap,pmac) -$(obj)/kernel-initrd.gz: $(obj)/ramdisk.image.gz - cp -f $(obj)/ramdisk.image.gz $@ +$(obj)/zImage.initrd.pmac: vmlinux $(wrapperbits) + $(call cmd,wrap_initrd,pmac) -$(call src-sec, $(required) $(initrd)): $(obj)/kernel-%.c: $(obj)/kernel-%.gz - @touch $@ +$(obj)/zImage.coff: vmlinux $(wrapperbits) + $(call cmd,wrap,pmaccoff) -$(call obj-sec, $(required) $(initrd)): $(obj)/kernel-%.o: $(obj)/kernel-%.c - $(call if_changed_dep,bootcc) - $(call cmd,addsection) +$(obj)/zImage.initrd.coff: vmlinux $(wrapperbits) + $(call cmd,wrap_initrd,pmaccoff) -$(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.miboot: vmlinux $(wrapperbits) + $(call cmd,wrap,miboot) -$(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) +$(obj)/zImage.initrd.miboot: vmlinux $(wrapperbits) + $(call cmd,wrap_initrd,miboot) + +image-$(CONFIG_PPC_PSERIES) += zImage.pseries +image-$(CONFIG_PPC_PMAC) += zImage.pmac +image-$(CONFIG_PPC_CHRP) += zImage.chrp # 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) +ifeq ($(CONFIG_PPC32),y) +image-$(CONFIG_PPC_PMAC) += zImage.coff zImage.miboot +endif -$(obj)/miboot.image: $(obj)/dummy.o $(obj)/vmlinux.gz - $(call cmd,gen-miboot,image) +initrd-y := $(patsubst zImage.%, zImage.initrd.%, $(image-y)) -$(obj)/miboot.initrd.image: $(obj)/miboot.image $(images)/ramdisk.image.gz - $(call cmd,gen-miboot,initrd) +$(obj)/zImage: $(addprefix $(obj)/, $(image-y)) +$(obj)/zImage.initrd: $(addprefix $(obj)/, $(initrd-y)) #----------------------------------------------------------- # build u-boot images @@ -217,4 +196,4 @@ extra-y += vmlinux.bin vmlinux.gz install: $(CONFIGURE) $(BOOTIMAGE) sh -x $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" vmlinux System.map "$(INSTALL_PATH)" "$(BOOTIMAGE)" -clean-files += $(addprefix $(objtree)/, $(obj-boot) vmlinux.strip) +clean-files += $(addprefix $(objtree)/, $(obj-boot) vmlinux.strip.gz) diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper new file mode 100755 index 0000000..98dc8b0 --- /dev/null +++ b/arch/powerpc/boot/wrapper @@ -0,0 +1,191 @@ +#!/bin/sh + +# Copyright (C) 2006 Paul Mackerras, IBM Corporation +# This program may be used under the terms of version 2 of the GNU +# General Public License. + +# This script takes a kernel binary and optionally an initrd image +# and/or a device-tree blob, and creates a bootable zImage for a +# given platform. + +# Options: +# -o zImage specify output file +# -p platform specify platform (links in $platform.o) +# -i initrd specify initrd file +# -d devtree specify device-tree blob +# -s tree.dts specify device-tree source file (needs dtc installed) +# -c cache $kernel.strip.gz (use if present & newer, else make) +# -C prefix specify command prefix for cross-building tools +# (strip, objcopy, ld) +# -D dir specify directory containing data files used by script +# (default ./arch/powerpc/boot) +# -W dir specify working directory for temporary files (default .) + +# defaults +kernel= +ofile=zImage +platform=of +initrd= +dtb= +dts= +cacheit= + +# cross-compilation prefix +CROSS= + +# directory for object and other files used by this script +object=arch/powerpc/boot + +# directory for working files +tmpdir=. + +usage() { + echo 'Usage: wrapper [-o output] [-p platform] [-i initrd]' >&2 + echo ' [-d devtree] [-s tree.dts] [-c] [-C cross-prefix]' >&2 + echo ' [-D datadir] [-W workingdir] [vmlinux]' >&2 + exit 1 +} + +while [ "$#" -gt 0 ]; do + case "$1" in + -o) + shift + [ "$#" -gt 0 ] || usage + ofile="$1" + ;; + -p) + shift + [ "$#" -gt 0 ] || usage + platform="$1" + ;; + -i) + shift + [ "$#" -gt 0 ] || usage + initrd="$1" + ;; + -d) + shift + [ "$#" -gt 0 ] || usage + dtb="$1" + ;; + -s) + shift + [ "$#" -gt 0 ] || usage + dts="$1" + ;; + -c) + cacheit=y + ;; + -C) + shift + [ "$#" -gt 0 ] || usage + CROSS="$1" + ;; + -D) + shift + [ "$#" -gt 0 ] || usage + object="$1" + ;; + -W) + shift + [ "$#" -gt 0 ] || usage + tmpdir="$1" + ;; + -?) + usage + ;; + *) + [ -z "$kernel" ] || usage + kernel="$1" + ;; + esac + shift +done + +if [ -n "$dts" ]; then + if [ -z "$dtb" ]; then + dtb="$platform.dtb" + fi + dtc -O dtb -o "$dtb" -b 0 -V 16 "$dts" || exit 1 +fi + +if [ -z "$kernel" ]; then + kernel=vmlinux +fi + +platformo=$object/"$platform".o +lds=$object/zImage.lds + +case "$platform" in +pmac|pseries|chrp) + platformo=$object/of.o + ;; +pmaccoff) + platformo=$object/of.o + lds=$object/zImage.coff.lds + ;; +miboot) + # this is quite different... + tmpvm=$tmpdir/vmlinux.bin.$$ + ${CROSS}objcopy -O binary "$kernel" $tmpvm + gzip -f -9 $tmpvm + tmpir= + if [ -n "$initrd" ]; then + tmpir=--add-section=initrd="$initrd" + fi + ${CROSS}objcopy -O aixcoff-rs6000 -R .stab -R .stabstr -R .comment \ + --add-section=image=$tmpvm.gz $tmpir \ + $object/empty.o "$ofile" + rm $tmpvm.gz + exit 0 +esac + +tmp=$tmpdir/zImage.$$.o +cp $object/empty.o $tmp + +addsec() { + ${CROSS}objcopy $1 \ + --add-section=.kernel:$3="$2" \ + --set-section-flags=.kernel:$3=contents,alloc,load,readonly,data +} + +if [ -n "$cacheit" ]; then + vmz="$tmpdir/`basename \"$kernel\"`.strip" + if [ ! -f "$vmz.gz" -o "$vmz.gz" -ot "$kernel" ]; then + cp "$kernel" "$vmz" + ${CROSS}strip "$vmz" + gzip -f -9 "$vmz" + fi + addsec $tmp "$vmz.gz" vmlinux.strip +else + tmpvmz=$tmpdir/vmlinux.$$ + cp "$kernel" $tmpvmz + ${CROSS}strip $tmpvmz + gzip -f -9 $tmpvmz + addsec $tmp $tmpvmz.gz vmlinux.strip + rm $tmpvmz.gz +fi + +if [ -n "$initrd" ]; then + addsec $tmp "$initrd" initrd +fi + +if [ -n "$dtb" ]; then + addsec $tmp "$dtb" dtb +fi + +${CROSS}ld -m elf32ppc -T $lds -o "$ofile" \ + $object/crt0.o $platformo $tmp $object/wrapper.a + +rm $tmp + +# post-processing needed for some platforms +case "$platform" in +pseries|chrp) + $object/addnote "$ofile" + ;; +pmaccoff) + ${CROSS}objcopy -O aixcoff-rs6000 --set-start 0x500000 "$ofile" + $object/hack-coff "$ofile" + ;; +esac diff --git a/arch/powerpc/boot/zImage.coff.lds b/arch/powerpc/boot/zImage.coff.lds deleted file mode 100644 index 6016251..0000000 --- a/arch/powerpc/boot/zImage.coff.lds +++ /dev/null @@ -1,46 +0,0 @@ -OUTPUT_ARCH(powerpc:common) -ENTRY(_start) -SECTIONS -{ - . = (5*1024*1024); - _start = .; - .text : - { - *(.text) - *(.fixup) - } - _etext = .; - . = ALIGN(4096); - .data : - { - *(.rodata*) - *(.data*) - *(.sdata*) - __got2_start = .; - *(.got2) - __got2_end = .; - - _vmlinux_start = .; - *(.kernel:vmlinux.strip) - _vmlinux_end = .; - - _initrd_start = .; - *(.kernel:initrd) - _initrd_end = .; - } - - . = ALIGN(4096); - _edata = .; - __bss_start = .; - .bss : - { - *(.sbss) - *(.bss) - } - _end = . ; - - /DISCARD/ : - { - *(.comment) - } -} diff --git a/arch/powerpc/boot/zImage.coff.lds.S b/arch/powerpc/boot/zImage.coff.lds.S new file mode 100644 index 0000000..6016251 --- /dev/null +++ b/arch/powerpc/boot/zImage.coff.lds.S @@ -0,0 +1,46 @@ +OUTPUT_ARCH(powerpc:common) +ENTRY(_start) +SECTIONS +{ + . = (5*1024*1024); + _start = .; + .text : + { + *(.text) + *(.fixup) + } + _etext = .; + . = ALIGN(4096); + .data : + { + *(.rodata*) + *(.data*) + *(.sdata*) + __got2_start = .; + *(.got2) + __got2_end = .; + + _vmlinux_start = .; + *(.kernel:vmlinux.strip) + _vmlinux_end = .; + + _initrd_start = .; + *(.kernel:initrd) + _initrd_end = .; + } + + . = ALIGN(4096); + _edata = .; + __bss_start = .; + .bss : + { + *(.sbss) + *(.bss) + } + _end = . ; + + /DISCARD/ : + { + *(.comment) + } +} diff --git a/arch/powerpc/boot/zImage.lds b/arch/powerpc/boot/zImage.lds deleted file mode 100644 index 4b6bb3f..0000000 --- a/arch/powerpc/boot/zImage.lds +++ /dev/null @@ -1,46 +0,0 @@ -OUTPUT_ARCH(powerpc:common) -ENTRY(_zimage_start) -SECTIONS -{ - . = (4*1024*1024); - _start = .; - .text : - { - *(.text) - *(.fixup) - } - _etext = .; - . = ALIGN(4096); - .data : - { - *(.rodata*) - *(.data*) - *(.sdata*) - __got2_start = .; - *(.got2) - __got2_end = .; - } - - . = ALIGN(4096); - _vmlinux_start = .; - .kernel:vmlinux.strip : { *(.kernel:vmlinux.strip) } - _vmlinux_end = .; - - . = ALIGN(4096); - _initrd_start = .; - .kernel:initrd : { *(.kernel:initrd) } - _initrd_end = .; - - . = ALIGN(4096); - _edata = .; - - . = ALIGN(4096); - __bss_start = .; - .bss : - { - *(.sbss) - *(.bss) - } - . = ALIGN(4096); - _end = . ; -} diff --git a/arch/powerpc/boot/zImage.lds.S b/arch/powerpc/boot/zImage.lds.S new file mode 100644 index 0000000..4b6bb3f --- /dev/null +++ b/arch/powerpc/boot/zImage.lds.S @@ -0,0 +1,46 @@ +OUTPUT_ARCH(powerpc:common) +ENTRY(_zimage_start) +SECTIONS +{ + . = (4*1024*1024); + _start = .; + .text : + { + *(.text) + *(.fixup) + } + _etext = .; + . = ALIGN(4096); + .data : + { + *(.rodata*) + *(.data*) + *(.sdata*) + __got2_start = .; + *(.got2) + __got2_end = .; + } + + . = ALIGN(4096); + _vmlinux_start = .; + .kernel:vmlinux.strip : { *(.kernel:vmlinux.strip) } + _vmlinux_end = .; + + . = ALIGN(4096); + _initrd_start = .; + .kernel:initrd : { *(.kernel:initrd) } + _initrd_end = .; + + . = ALIGN(4096); + _edata = .; + + . = ALIGN(4096); + __bss_start = .; + .bss : + { + *(.sbss) + *(.bss) + } + . = ALIGN(4096); + _end = . ; +}