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-rwxr-xr-xarch/powerpc/boot/wrapper395
1 files changed, 395 insertions, 0 deletions
diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper
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--- /dev/null
+++ b/arch/powerpc/boot/wrapper
@@ -0,0 +1,395 @@
+#!/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=
+
+# 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
+
+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'
+
+case "$platform" in
+pseries)
+ platformo=$object/of.o
+ link_address='0x4000000'
+ ;;
+maple)
+ platformo=$object/of.o
+ link_address='0x400000'
+ ;;
+pmac|chrp)
+ platformo=$object/of.o
+ ;;
+coff)
+ platformo="$object/crt0.o $object/of.o"
+ lds=$object/zImage.coff.lds
+ link_address='0x500000'
+ 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=''
+ 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-iss4xx-mpic)
+ platformo="$object/treeboot-iss4xx.o"
+ ;;
+epapr)
+ link_address='0x20000000'
+ pie=-pie
+ ;;
+esac
+
+vmz="$tmpdir/`basename \"$kernel\"`.$ext"
+if [ -z "$cacheit" -o ! -f "$vmz$gzip" -o "$vmz$gzip" -ot "$kernel" ]; then
+ ${CROSS}objcopy $objflags "$kernel" "$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
+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
+ ;;
+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 elf32ppc -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
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