#!/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 $kernel.strip.gz (use if present & newer, else make)# -C prefix	specify command prefix for cross-building tools#		(strip, objcopy, ld)# -D dir	specify directory containing data files used by script#		(default ./arch/powerpc/boot)# -W dir	specify working directory for temporary files (default .)# -z		use gzip (legacy)# -Z zsuffix    compression to use (gz, xz or none) # Stop execution if any command failsset -e export LC_ALL=C # Allow for verbose outputif [ "$V" = 1 ]; then    set -x    map="-Map wrapper.map"fi # defaultskernel=ofile=zImageplatform=ofinitrd=dtb=dts=esm_blob=cacheit=binary=compression=.gzuboot_comp=gzippie=format=notext=rodynamic= # cross-compilation prefixCROSS= # mkimage wrapper scriptMKIMAGE=$srctree/scripts/mkuboot.sh # directory for object and other files used by this scriptobject=arch/powerpc/bootobjbin=$objectdtc=scripts/dtc/dtc # directory for working filestmpdir=. 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="$1"	;;    esac    shiftdone  if [ -n "$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=vmlinuxfi 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 versionsnowarn="-z noexecstack"if ! ld_is_lld; then	if [ "$LD_VERSION" -ge "$(echo 2.39 | ld_version)" ]; then		nowarn="$nowarn --no-warn-rwx-segments"	fifi platformo=$object/"$platform".olds=$object/zImage.ldsext=stripobjflags=-Stmp=$tmpdir/zImage.$$.oksection=.kernel:vmlinux.stripisection=.kernel:initrdesection=.kernel:esm_bloblink_address='0x400000'make_space=y  if [ -n "$esm_blob" -a "$platform" != "pseries" ]; then    echo "ESM blob not support on non-pseries platforms" >&2    exit 1fi case "$platform" inof)    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    ;;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|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.$$"    fielse    rm -f $vmz.$$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	fifi # Extract kernel version information, some platforms want to include# it in the image headerversion=`${CROSS}strings "$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 imagemembase=`${CROSS}objdump -p "$kernel" | grep -m 1 LOAD | awk '{print $7}'` case "$platform" inuboot)    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    ;;esac addsec() {    ${CROSS}objcopy $4 $1 \	--add-section=$3="$2" \	--set-section-flags=$3=contents,alloc,load,readonly,data} addsec $tmp "$vmz" $ksection $object/empty.oif [ -z "$cacheit" ]; then    rm -f "$vmz"fi if [ -n "$initrd" ]; then    addsec $tmp "$initrd" $isectionfi if [ -n "$dtb" ]; then    addsec $tmp "$dtb" .kernel:dtb    if [ -n "$dts" ]; then	rm $dtb    fifi if [ -n "$esm_blob" ]; then    addsec $tmp "$esm_blob" $esectionfi if [ "$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

Lines 1–500 of 583. Load more