Orange Pi5 kernel

 #!/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
 
# 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=
 
# 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 [ $uboot_comp = "gz" ]; then
<------><------>uboot_comp=gzip
<------>fi
<------>;;
    --no-gzip)
        # a "feature" of the the wrapper script is that it can be used outside
        # the kernel tree. So keeping this around for backwards compatibility.
        compression=
<------>uboot_comp=none
        ;;
    -?)
<------>usage
<------>;;
    *)
<------>[ -z "$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
 
LANG=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, ".");
<------>print a[1]*100000000 + a[2]*1000000 + a[3]*10000;
<------>exit
    }'
}
 
# 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
 
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*|*-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
    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"
    ;;
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 $object/mvme5100.o"
    binary=y
    ;;
mvme7100)
    platformo="$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.]' | \
    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 $nodl -o "$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" | egrep ' _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

	#!/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

	# 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=

	# 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 [ $uboot_comp = "gz" ]; then
	<------><------>uboot_comp=gzip
	<------>fi
	<------>;;
	--no-gzip)
	# a "feature" of the the wrapper script is that it can be used outside
	# the kernel tree. So keeping this around for backwards compatibility.
	compression=
	<------>uboot_comp=none
	;;
	-?)
	<------>usage
	<------>;;
	*)
	<------>[ -z "$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

	LANG=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, ".");
	<------>print a[1]100000000 + a[2]1000000 + a[3]*10000;
	<------>exit
	}'
	}

	# 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

	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\|-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
	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"
	;;
	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 $object/mvme5100.o"
	binary=y
	;;
	mvme7100)
	platformo="$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.]' \| \
	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 $nodl -o "$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" \| egrep ' _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