diff options
Diffstat (limited to 'kernel/arch/powerpc/boot/wrapper')
| -rwxr-xr-x | kernel/arch/powerpc/boot/wrapper | 471 |
1 files changed, 471 insertions, 0 deletions
diff --git a/kernel/arch/powerpc/boot/wrapper b/kernel/arch/powerpc/boot/wrapper new file mode 100755 index 000000000..3f50c27ed --- /dev/null +++ b/kernel/arch/powerpc/boot/wrapper @@ -0,0 +1,471 @@ +#!/bin/sh + +# Copyright (C) 2006 Paul Mackerras, IBM Corporation <paulus@samba.org> +# 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 $kernel.strip.gz (use if present & newer, else make) +# -C prefix specify command prefix for cross-building tools +# (strip, objcopy, ld) +# -D dir specify directory containing data files used by script +# (default ./arch/powerpc/boot) +# -W dir specify working directory for temporary files (default .) + +# Stop execution if any command fails +set -e + +# Allow for verbose output +if [ "$V" = 1 ]; then + set -x +fi + +# defaults +kernel= +ofile=zImage +platform=of +initrd= +dtb= +dts= +cacheit= +binary= +gzip=.gz +pie= +format= + +# cross-compilation prefix +CROSS= + +# mkimage wrapper script +MKIMAGE=$srctree/scripts/mkuboot.sh + +# directory for object and other files used by this script +object=arch/powerpc/boot +objbin=$object +dtc=scripts/dtc/dtc + +# 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] [--no-gzip] [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" + objbin="$1" + ;; + -W) + shift + [ "$#" -gt 0 ] || usage + tmpdir="$1" + ;; + --no-gzip) + gzip= + ;; + -?) + usage + ;; + *) + [ -z "$kernel" ] || usage + kernel="$1" + ;; + esac + shift +done + +if [ -n "$dts" ]; then + if [ ! -r "$dts" -a -r "$object/dts/$dts" ]; then + dts="$object/dts/$dts" + fi + if [ -z "$dtb" ]; then + dtb="$platform.dtb" + fi + $dtc -O dtb -o "$dtb" -b 0 "$dts" +fi + +if [ -z "$kernel" ]; then + kernel=vmlinux +fi + +elfformat="`${CROSS}objdump -p "$kernel" | grep 'file format' | awk '{print $4}'`" +case "$elfformat" in + elf64-powerpcle) format=elf64lppc ;; + elf64-powerpc) format=elf32ppc ;; + elf32-powerpc) format=elf32ppc ;; +esac + + +platformo=$object/"$platform".o +lds=$object/zImage.lds +ext=strip +objflags=-S +tmp=$tmpdir/zImage.$$.o +ksection=.kernel:vmlinux.strip +isection=.kernel:initrd +link_address='0x400000' +make_space=y + +case "$platform" in +of) + platformo="$object/of.o $object/epapr.o" + make_space=n + ;; +pseries) + platformo="$object/pseries-head.o $object/of.o $object/epapr.o" + link_address='0x4000000' + if [ "$format" != "elf32ppc" ]; then + link_address= + pie=-pie + fi + make_space=n + ;; +maple) + platformo="$object/of.o $object/epapr.o" + link_address='0x400000' + make_space=n + ;; +pmac|chrp) + platformo="$object/of.o $object/epapr.o" + make_space=n + ;; +coff) + platformo="$object/crt0.o $object/of.o $object/epapr.o" + lds=$object/zImage.coff.lds + link_address='0x500000' + make_space=n + pie= + ;; +miboot|uboot*) + # miboot and U-boot want just the bare bits, not an ELF binary + ext=bin + objflags="-O binary" + tmp="$ofile" + ksection=image + isection=initrd + ;; +cuboot*) + binary=y + gzip= + case "$platform" in + *-mpc866ads|*-mpc885ads|*-adder875*|*-ep88xc) + platformo=$object/cuboot-8xx.o + ;; + *5200*|*-motionpro) + platformo=$object/cuboot-52xx.o + ;; + *-pq2fads|*-ep8248e|*-mpc8272*|*-storcenter) + platformo=$object/cuboot-pq2.o + ;; + *-mpc824*) + platformo=$object/cuboot-824x.o + ;; + *-mpc83*|*-asp834x*) + platformo=$object/cuboot-83xx.o + ;; + *-tqm8541|*-mpc8560*|*-tqm8560|*-tqm8555|*-ksi8560*) + platformo=$object/cuboot-85xx-cpm2.o + ;; + *-mpc85*|*-tqm85*|*-sbc85*) + platformo=$object/cuboot-85xx.o + ;; + *-amigaone) + link_address='0x800000' + ;; + esac + ;; +ps3) + platformo="$object/ps3-head.o $object/ps3-hvcall.o $object/ps3.o" + lds=$object/zImage.ps3.lds + gzip= + ext=bin + objflags="-O binary --set-section-flags=.bss=contents,alloc,load,data" + ksection=.kernel:vmlinux.bin + isection=.kernel:initrd + link_address='' + make_space=n + pie= + ;; +ep88xc|ep405|ep8248e) + platformo="$object/fixed-head.o $object/$platform.o" + binary=y + ;; +adder875-redboot) + platformo="$object/fixed-head.o $object/redboot-8xx.o" + binary=y + ;; +simpleboot-virtex405-*) + platformo="$object/virtex405-head.o $object/simpleboot.o $object/virtex.o" + binary=y + ;; +simpleboot-virtex440-*) + platformo="$object/fixed-head.o $object/simpleboot.o $object/virtex.o" + binary=y + ;; +simpleboot-*) + platformo="$object/fixed-head.o $object/simpleboot.o" + binary=y + ;; +asp834x-redboot) + platformo="$object/fixed-head.o $object/redboot-83xx.o" + binary=y + ;; +xpedite52*) + link_address='0x1400000' + platformo=$object/cuboot-85xx.o + ;; +gamecube|wii) + link_address='0x600000' + platformo="$object/$platform-head.o $object/$platform.o" + ;; +treeboot-currituck) + link_address='0x1000000' + ;; +treeboot-akebono) + link_address='0x1000000' + ;; +treeboot-iss4xx-mpic) + platformo="$object/treeboot-iss4xx.o" + ;; +epapr) + platformo="$object/pseries-head.o $object/epapr.o $object/epapr-wrapper.o" + link_address='0x20000000' + pie=-pie + ;; +mvme5100) + platformo="$object/fixed-head.o $object/mvme5100.o" + binary=y + ;; +esac + +vmz="$tmpdir/`basename \"$kernel\"`.$ext" +if [ -z "$cacheit" -o ! -f "$vmz$gzip" -o "$vmz$gzip" -ot "$kernel" ]; then + ${CROSS}objcopy $objflags "$kernel" "$vmz.$$" + + strip_size=$(stat -c %s $vmz.$$) + + if [ -n "$gzip" ]; then + gzip -n -f -9 "$vmz.$$" + fi + + if [ -n "$cacheit" ]; then + mv -f "$vmz.$$$gzip" "$vmz$gzip" + else + vmz="$vmz.$$" + fi +else + # Calculate the vmlinux.strip size + ${CROSS}objcopy $objflags "$kernel" "$vmz.$$" + strip_size=$(stat -c %s $vmz.$$) + rm -f $vmz.$$ +fi + +if [ "$make_space" = "y" ]; then + # Round the size to next higher MB limit + round_size=$(((strip_size + 0xfffff) & 0xfff00000)) + + round_size=0x$(printf "%x" $round_size) + link_addr=$(printf "%d" $link_address) + + if [ $link_addr -lt $strip_size ]; then + echo "INFO: Uncompressed kernel (size 0x$(printf "%x\n" $strip_size))" \ + "overlaps the address of the wrapper($link_address)" + echo "INFO: Fixing the link_address of wrapper to ($round_size)" + link_address=$round_size + fi +fi + +vmz="$vmz$gzip" + +# Extract kernel version information, some platforms want to include +# it in the image header +version=`${CROSS}strings "$kernel" | grep '^Linux version [-0-9.]' | \ + cut -d' ' -f3` +if [ -n "$version" ]; then + uboot_version="-n Linux-$version" +fi + +# physical offset of kernel image +membase=`${CROSS}objdump -p "$kernel" | grep -m 1 LOAD | awk '{print $7}'` + +case "$platform" in +uboot) + rm -f "$ofile" + ${MKIMAGE} -A ppc -O linux -T kernel -C gzip -a $membase -e $membase \ + $uboot_version -d "$vmz" "$ofile" + if [ -z "$cacheit" ]; then + rm -f "$vmz" + fi + exit 0 + ;; +uboot-obs600) + rm -f "$ofile" + # obs600 wants a multi image with an initrd, so we need to put a fake + # one in even when building a "normal" image. + if [ -n "$initrd" ]; then + real_rd="$initrd" + else + real_rd=`mktemp` + echo "\0" >>"$real_rd" + fi + ${MKIMAGE} -A ppc -O linux -T multi -C gzip -a $membase -e $membase \ + $uboot_version -d "$vmz":"$real_rd":"$dtb" "$ofile" + if [ -z "$initrd" ]; then + rm -f "$real_rd" + fi + if [ -z "$cacheit" ]; then + rm -f "$vmz" + fi + exit 0 + ;; +esac + +addsec() { + ${CROSS}objcopy $4 $1 \ + --add-section=$3="$2" \ + --set-section-flags=$3=contents,alloc,load,readonly,data +} + +addsec $tmp "$vmz" $ksection $object/empty.o +if [ -z "$cacheit" ]; then + rm -f "$vmz" +fi + +if [ -n "$initrd" ]; then + addsec $tmp "$initrd" $isection +fi + +if [ -n "$dtb" ]; then + addsec $tmp "$dtb" .kernel:dtb + if [ -n "$dts" ]; then + rm $dtb + fi +fi + +if [ "$platform" != "miboot" ]; then + if [ -n "$link_address" ] ; then + text_start="-Ttext $link_address" + fi + ${CROSS}ld -m $format -T $lds $text_start $pie -o "$ofile" \ + $platformo $tmp $object/wrapper.a + rm $tmp +fi + +# Some platforms need the zImage's entry point and base address +base=0x`${CROSS}nm "$ofile" | grep ' _start$' | cut -d' ' -f1` +entry=`${CROSS}objdump -f "$ofile" | grep '^start address ' | cut -d' ' -f3` + +if [ -n "$binary" ]; then + mv "$ofile" "$ofile".elf + ${CROSS}objcopy -O binary "$ofile".elf "$ofile" +fi + +# post-processing needed for some platforms +case "$platform" in +pseries|chrp|maple) + $objbin/addnote "$ofile" + ;; +coff) + ${CROSS}objcopy -O aixcoff-rs6000 --set-start "$entry" "$ofile" + $objbin/hack-coff "$ofile" + ;; +cuboot*) + gzip -n -f -9 "$ofile" + ${MKIMAGE} -A ppc -O linux -T kernel -C gzip -a "$base" -e "$entry" \ + $uboot_version -d "$ofile".gz "$ofile" + ;; +treeboot*) + mv "$ofile" "$ofile.elf" + $objbin/mktree "$ofile.elf" "$ofile" "$base" "$entry" + if [ -z "$cacheit" ]; then + rm -f "$ofile.elf" + fi + exit 0 + ;; +ps3) + # The ps3's loader supports loading a gzipped binary image from flash + # rom to ram addr zero. The loader then enters the system reset + # vector at addr 0x100. A bootwrapper overlay is used to arrange for + # a binary image of the kernel to be at addr zero, and yet have a + # suitable bootwrapper entry at 0x100. To construct the final rom + # image 512 bytes from offset 0x100 is copied to the bootwrapper + # place holder at symbol __system_reset_kernel. The 512 bytes of the + # bootwrapper entry code at symbol __system_reset_overlay is then + # copied to offset 0x100. At runtime the bootwrapper program copies + # the data at __system_reset_kernel back to addr 0x100. + + system_reset_overlay=0x`${CROSS}nm "$ofile" \ + | grep ' __system_reset_overlay$' \ + | cut -d' ' -f1` + system_reset_overlay=`printf "%d" $system_reset_overlay` + system_reset_kernel=0x`${CROSS}nm "$ofile" \ + | grep ' __system_reset_kernel$' \ + | cut -d' ' -f1` + system_reset_kernel=`printf "%d" $system_reset_kernel` + overlay_dest="256" + overlay_size="512" + + ${CROSS}objcopy -O binary "$ofile" "$ofile.bin" + + dd if="$ofile.bin" of="$ofile.bin" conv=notrunc \ + skip=$overlay_dest seek=$system_reset_kernel \ + count=$overlay_size bs=1 + + dd if="$ofile.bin" of="$ofile.bin" conv=notrunc \ + skip=$system_reset_overlay seek=$overlay_dest \ + count=$overlay_size bs=1 + + odir="$(dirname "$ofile.bin")" + rm -f "$odir/otheros.bld" + gzip -n --force -9 --stdout "$ofile.bin" > "$odir/otheros.bld" + ;; +esac |