diff options
Diffstat (limited to 'arch/powerpc/boot/wrapper')
| -rwxr-xr-x | arch/powerpc/boot/wrapper | 267 |
1 files changed, 201 insertions, 66 deletions
diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper index 6761c746048d..1efd1206fcab 100755 --- a/arch/powerpc/boot/wrapper +++ b/arch/powerpc/boot/wrapper @@ -1,8 +1,7 @@ #!/bin/sh +# SPDX-License-Identifier: GPL-2.0-only # 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 @@ -14,19 +13,25 @@ # -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 $kernel.strip.gz (use if present & newer, else make) # -C prefix specify command prefix for cross-building tools # (strip, objcopy, ld) # -D dir specify directory containing data files used by script # (default ./arch/powerpc/boot) # -W dir specify working directory for temporary files (default .) +# -z use gzip (legacy) +# -Z zsuffix compression to use (gz, xz, lzma, lzo or none) # Stop execution if any command fails set -e +export LC_ALL=C + # Allow for verbose output if [ "$V" = 1 ]; then set -x + map="-Map wrapper.map" fi # defaults @@ -36,10 +41,15 @@ platform=of initrd= dtb= dts= +esm_blob= cacheit= binary= -gzip=.gz +compression=.gz +uboot_comp=gzip pie= +format= +notext= +rodynamic= # cross-compilation prefix CROSS= @@ -57,11 +67,29 @@ 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 + echo ' [-d devtree] [-s tree.dts] [-e esm_blob]' >&2 + echo ' [-c] [-C cross-prefix] [-D datadir] [-W workingdir]' >&2 + echo ' [-Z (gz|xz|lzma|lzo|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 "$1" in -o) @@ -84,6 +112,11 @@ while [ "$#" -gt 0 ]; do [ "$#" -gt 0 ] || usage dtb="$1" ;; + -e) + shift + [ "$#" -gt 0 ] || usage + esm_blob="$1" + ;; -s) shift [ "$#" -gt 0 ] || usage @@ -108,8 +141,31 @@ while [ "$#" -gt 0 ]; do [ "$#" -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 [ $uboot_comp = "gz" ]; then + uboot_comp=gzip + fi + ;; --no-gzip) - gzip= + # a "feature" of the wrapper script is that it can be used outside + # the kernel tree. So keeping this around for backwards compatibility. + compression= + uboot_comp=none ;; -?) usage @@ -122,6 +178,7 @@ while [ "$#" -gt 0 ]; do shift done + if [ -n "$dts" ]; then if [ ! -r "$dts" -a -r "$object/dts/$dts" ]; then dts="$object/dts/$dts" @@ -136,6 +193,47 @@ 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() +{ + ${CROSS}ld -V 2>&1 | grep -q LLD +} + +# Do not include PT_INTERP segment when linking pie. Non-pie linking +# just ignores this option. +nodl="--no-dynamic-linker" + +# suppress some warnings in recent ld versions +nowarn="-z noexecstack" +if "${CROSS}ld" -v --no-warn-rwx-segments >/dev/null 2>&1; then + nowarn="$nowarn --no-warn-rwx-segments" +fi + platformo=$object/"$platform".o lds=$object/zImage.lds ext=strip @@ -143,25 +241,39 @@ 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/of.o + platformo="$object/pseries-head.o $object/of.o $object/epapr.o" link_address='0x4000000' - ;; -maple) - platformo=$object/of.o - link_address='0x400000' + if [ "$format" != "elf32ppc" ]; then + link_address= + pie=-pie + fi + make_space=n ;; pmac|chrp) - platformo=$object/of.o + platformo="$object/of.o $object/epapr.o" + make_space=n ;; coff) - platformo="$object/crt0.o $object/of.o" + platformo="$object/crt0.o $object/of.o $object/epapr.o" lds=$object/zImage.coff.lds link_address='0x500000' + make_space=n pie= ;; miboot|uboot*) @@ -174,7 +286,7 @@ miboot|uboot*) ;; cuboot*) binary=y - gzip= + compression= case "$platform" in *-mpc866ads|*-mpc885ads|*-adder875*|*-ep88xc) platformo=$object/cuboot-8xx.o @@ -194,7 +306,7 @@ cuboot*) *-tqm8541|*-mpc8560*|*-tqm8560|*-tqm8555|*-ksi8560*) platformo=$object/cuboot-85xx-cpm2.o ;; - *-mpc85*|*-tqm85*|*-sbc85*) + *-mpc85*|*-tqm85*) platformo=$object/cuboot-85xx.o ;; *-amigaone) @@ -205,7 +317,7 @@ cuboot*) ps3) platformo="$object/ps3-head.o $object/ps3-hvcall.o $object/ps3.o" lds=$object/zImage.ps3.lds - gzip= + compression= ext=bin objflags="-O binary --set-section-flags=.bss=contents,alloc,load,data" ksection=.kernel:vmlinux.bin @@ -214,7 +326,7 @@ ps3) make_space=n pie= ;; -ep88xc|ep405|ep8248e) +ep88xc|ep8248e) platformo="$object/fixed-head.o $object/$platform.o" binary=y ;; @@ -222,14 +334,6 @@ 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 @@ -246,40 +350,77 @@ 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" -if [ -z "$cacheit" -o ! -f "$vmz$gzip" -o "$vmz$gzip" -ot "$kernel" ]; then - ${CROSS}objcopy $objflags "$kernel" "$vmz.$$" - strip_size=$(stat -c %s $vmz.$$) +# Calculate the vmlinux.strip size +${CROSS}objcopy $objflags "$kernel" "$vmz.$$" +strip_size=$(${CONFIG_SHELL} "${srctree}/scripts/file-size.sh" "$vmz.$$") - if [ -n "$gzip" ]; then +if [ -z "$cacheit" -o ! -f "$vmz$compression" -o "$vmz$compression" -ot "$kernel" ]; then + # recompress the image if we need to + case $compression in + .xz) + xz --check=crc32 -f -6 "$vmz.$$" + ;; + .gz) gzip -n -f -9 "$vmz.$$" - fi + ;; + .lzma) + xz --format=lzma -f -6 "$vmz.$$" + ;; + .lzo) + lzop -f -9 "$vmz.$$" + ;; + *) + # drop the compression suffix so the stripped vmlinux is used + compression= + uboot_comp=none + ;; + esac if [ -n "$cacheit" ]; then - mv -f "$vmz.$$$gzip" "$vmz$gzip" + mv -f "$vmz.$$$compression" "$vmz$compression" else vmz="$vmz.$$" fi else - # Calculate the vmlinux.strip size - ${CROSS}objcopy $objflags "$kernel" "$vmz.$$" - strip_size=$(stat -c %s $vmz.$$) rm -f $vmz.$$ fi +vmz="$vmz$compression" + if [ "$make_space" = "y" ]; then # Round the size to next higher MB limit round_size=$(((strip_size + 0xfffff) & 0xfff00000)) @@ -295,12 +436,10 @@ if [ "$make_space" = "y" ]; then fi fi -vmz="$vmz$gzip" - # Extract kernel version information, some platforms want to include # it in the image header version=`${CROSS}strings "$kernel" | grep '^Linux version [-0-9.]' | \ - cut -d' ' -f3` + head -n1 | cut -d' ' -f3` if [ -n "$version" ]; then uboot_version="-n Linux-$version" fi @@ -311,33 +450,13 @@ membase=`${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 \ + ${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 "$vmz" - fi - exit 0 - ;; esac addsec() { @@ -362,11 +481,16 @@ if [ -n "$dtb" ]; then 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 - ${CROSS}ld -m elf32ppc -T $lds $text_start $pie -o "$ofile" \ +#link everything + ${CROSS}ld -m $format -T $lds $text_start $pie $nodl $nowarn $rodynamic $notext -o "$ofile" $map \ $platformo $tmp $object/wrapper.a rm $tmp fi @@ -382,7 +506,7 @@ fi # post-processing needed for some platforms case "$platform" in -pseries|chrp|maple) +pseries|chrp) $objbin/addnote "$ofile" ;; coff) @@ -427,16 +551,27 @@ ps3) ${CROSS}objcopy -O binary "$ofile" "$ofile.bin" - dd if="$ofile.bin" of="$ofile.bin" conv=notrunc \ - skip=$overlay_dest seek=$system_reset_kernel \ + run_cmd dd if="$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 \ + 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 "$ofile.bin")" - rm -f "$odir/otheros.bld" - gzip -n --force -9 --stdout "$ofile.bin" > "$odir/otheros.bld" + + # 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 |