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-rwxr-xr-xarch/powerpc/boot/wrapper608
1 files changed, 608 insertions, 0 deletions
diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper
new file mode 100755
index 000000000..352d7de24
--- /dev/null
+++ b/arch/powerpc/boot/wrapper
@@ -0,0 +1,608 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0-only
+
+# Copyright (C) 2006 Paul Mackerras, IBM Corporation <paulus@samba.org>
+
+# 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)
+# -e esm_blob specify ESM blob for secure images
+# -c cache $kernel.strip.gz (use if present & newer, else make)
+# -C prefix specify command prefix for cross-building tools
+# (strip, objcopy, ld)
+# -D dir specify directory containing data files used by script
+# (default ./arch/powerpc/boot)
+# -W dir specify working directory for temporary files (default .)
+# -z use gzip (legacy)
+# -Z zsuffix compression to use (gz, xz or none)
+
+# Stop execution if any command fails
+set -e
+
+export LC_ALL=C
+
+# Allow for verbose output
+if [ "$V" = 1 ]; then
+ set -x
+ map="-Map wrapper.map"
+fi
+
+# defaults
+kernel=
+ofile=zImage
+platform=of
+initrd=
+dtb=
+dts=
+esm_blob=
+cacheit=
+binary=
+compression=.gz
+uboot_comp=gzip
+pie=
+format=
+notext=
+rodynamic=
+
+# 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] [-e esm_blob]' >&2
+ echo ' [-c] [-C cross-prefix] [-D datadir] [-W workingdir]' >&2
+ echo ' [-Z (gz|xz|none)] [--no-compression] [vmlinux]' >&2
+ exit 1
+}
+
+run_cmd() {
+ if [ "$V" = 1 ]; then
+ $* 2>&1
+ else
+ local msg
+
+ set +e
+ msg=$($* 2>&1)
+
+ if [ $? -ne "0" ]; then
+ echo $msg
+ exit 1
+ fi
+ set -e
+ fi
+}
+
+while [ "$#" -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="$1"
+ ;;
+ -e)
+ shift
+ [ "$#" -gt 0 ] || usage
+ esm_blob="$1"
+ ;;
+ -s)
+ shift
+ [ "$#" -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="$1"
+ ;;
+ -z)
+ compression=.gz
+ uboot_comp=gzip
+ ;;
+ -Z)
+ shift
+ [ "$#" -gt 0 ] || usage
+ [ "$1" != "gz" -o "$1" != "xz" -o "$1" != "lzma" -o "$1" != "lzo" -o "$1" != "none" ] || usage
+
+ compression=".$1"
+ uboot_comp=$1
+
+ if [ $compression = ".none" ]; then
+ compression=
+ uboot_comp=none
+ fi
+ if [ $uboot_comp = "gz" ]; then
+ uboot_comp=gzip
+ fi
+ ;;
+ --no-gzip)
+ # a "feature" of the wrapper script is that it can be used outside
+ # the kernel tree. So keeping this around for backwards compatibility.
+ compression=
+ uboot_comp=none
+ ;;
+ -?)
+ usage
+ ;;
+ *)
+ [ -z "$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
+
+LC_ALL=C 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
+
+ld_version()
+{
+ # Poached from scripts/ld-version.sh, but we don't want to call that because
+ # this script (wrapper) is distributed separately from the kernel source.
+ # Extract linker version number from stdin and turn into single number.
+ awk '{
+ gsub(".*\\)", "");
+ gsub(".*version ", "");
+ gsub("-.*", "");
+ split($1,a, ".");
+ if( length(a[3]) == "8" )
+ # a[3] is probably a date of format yyyymmdd used for release snapshots. We
+ # can assume it to be zero as it does not signify a new version as such.
+ a[3] = 0;
+ print a[1]*100000000 + a[2]*1000000 + a[3]*10000;
+ exit
+ }'
+}
+
+ld_is_lld()
+{
+ ${CROSS}ld -V 2>&1 | grep -q LLD
+}
+
+# Do not include PT_INTERP segment when linking pie. Non-pie linking
+# just ignores this option.
+LD_VERSION=$(${CROSS}ld --version | ld_version)
+LD_NO_DL_MIN_VERSION=$(echo 2.26 | ld_version)
+if [ "$LD_VERSION" -ge "$LD_NO_DL_MIN_VERSION" ] ; then
+ nodl="--no-dynamic-linker"
+fi
+
+# suppress some warnings in recent ld versions
+nowarn="-z noexecstack"
+if ! ld_is_lld; then
+ if [ "$LD_VERSION" -ge "$(echo 2.39 | ld_version)" ]; then
+ nowarn="$nowarn --no-warn-rwx-segments"
+ fi
+fi
+
+platformo=$object/"$platform".o
+lds=$object/zImage.lds
+ext=strip
+objflags=-S
+tmp=$tmpdir/zImage.$$.o
+ksection=.kernel:vmlinux.strip
+isection=.kernel:initrd
+esection=.kernel:esm_blob
+link_address='0x400000'
+make_space=y
+
+
+if [ -n "$esm_blob" -a "$platform" != "pseries" ]; then
+ echo "ESM blob not support on non-pseries platforms" >&2
+ exit 1
+fi
+
+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
+ compression=
+ 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*)
+ 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
+ compression=
+ 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-*)
+ 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"
+ ;;
+microwatt)
+ link_address='0x500000'
+ platformo="$object/fixed-head.o $object/$platform.o"
+ binary=y
+ ;;
+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
+ notext='-z notext'
+ rodynamic=$(if ${CROSS}ld -V 2>&1 | grep -q LLD ; then echo "-z rodynamic"; fi)
+ ;;
+mvme5100)
+ platformo="$object/fixed-head.o $object/mvme5100.o"
+ binary=y
+ ;;
+mvme7100)
+ platformo="$object/motload-head.o $object/mvme7100.o"
+ link_address='0x4000000'
+ binary=y
+ ;;
+esac
+
+vmz="$tmpdir/`basename \"$kernel\"`.$ext"
+
+# Calculate the vmlinux.strip size
+${CROSS}objcopy $objflags "$kernel" "$vmz.$$"
+strip_size=$(${CONFIG_SHELL} "${srctree}/scripts/file-size.sh" "$vmz.$$")
+
+if [ -z "$cacheit" -o ! -f "$vmz$compression" -o "$vmz$compression" -ot "$kernel" ]; then
+ # recompress the image if we need to
+ case $compression in
+ .xz)
+ xz --check=crc32 -f -6 "$vmz.$$"
+ ;;
+ .gz)
+ gzip -n -f -9 "$vmz.$$"
+ ;;
+ .lzma)
+ xz --format=lzma -f -6 "$vmz.$$"
+ ;;
+ .lzo)
+ lzop -f -9 "$vmz.$$"
+ ;;
+ *)
+ # drop the compression suffix so the stripped vmlinux is used
+ compression=
+ uboot_comp=none
+ ;;
+ esac
+
+ if [ -n "$cacheit" ]; then
+ mv -f "$vmz.$$$compression" "$vmz$compression"
+ else
+ vmz="$vmz.$$"
+ fi
+else
+ rm -f $vmz.$$
+fi
+
+vmz="$vmz$compression"
+
+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
+
+# Extract kernel version information, some platforms want to include
+# it in the image header
+version=`${CROSS}strings "$kernel" | grep '^Linux version [-0-9.]' | \
+ head -n1 | 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 $uboot_comp -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 $dtb
+ fi
+fi
+
+if [ -n "$esm_blob" ]; then
+ addsec $tmp "$esm_blob" $esection
+fi
+
+if [ "$platform" != "miboot" ]; then
+ if [ -n "$link_address" ] ; then
+ text_start="-Ttext $link_address"
+ fi
+#link everything
+ ${CROSS}ld -m $format -T $lds $text_start $pie $nodl $nowarn $rodynamic $notext -o "$ofile" $map \
+ $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" "$ofile.bin"
+
+ run_cmd dd if="$ofile.bin" of="$ofile.bin" conv=notrunc \
+ skip=$overlay_dest seek=$system_reset_kernel \
+ count=$overlay_size bs=1
+
+ run_cmd dd if="$ofile.bin" of="$ofile.bin" conv=notrunc \
+ skip=$system_reset_overlay seek=$overlay_dest \
+ count=$overlay_size bs=1
+
+ odir="$(dirname "$ofile.bin")"
+
+ # The ps3's flash loader has a size limit of 16 MiB for the uncompressed
+ # image. If a compressed image that exceeded this limit is written to
+ # flash the loader will decompress that image until the 16 MiB limit is
+ # reached, then enter the system reset vector of the partially decompressed
+ # image. No warning is issued.
+ rm -f "$odir"/{otheros,otheros-too-big}.bld
+ size=$(${CROSS}nm --no-sort --radix=d "$ofile" | grep -E ' _end$' | cut -d' ' -f1)
+ bld="otheros.bld"
+ if [ $size -gt $((0x1000000)) ]; then
+ bld="otheros-too-big.bld"
+ fi
+ gzip -n --force -9 --stdout "$ofile.bin" > "$odir/$bld"
+ ;;
+esac
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