[mirror_ubuntu-zesty-kernel.git] / arch / powerpc / boot / wrapper

#!/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 .)
# -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
fi

# defaults
kernel=
ofile=zImage
platform=of
initrd=
dtb=
dts=
cacheit=
binary=
compression=.gz
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] [-c] [-C cross-prefix]' >&2
    echo '       [-D datadir] [-W workingdir] [-Z (gz|xz|none)]' >&2
    echo '       [--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="$1"
	;;
    -s)
	shift
	[ "$#" -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="$1"
	;;
    -z)
	compression=.gz
	;;
    -Z)
	shift
	[ "$#" -gt 0 ] || usage
        [ "$1" != "gz" -o "$1" != "xz" -o "$1" != "none" ] || usage

	compression=".$1"

        if [ $compression = ".none" ]; then
                compression=
        fi
	;;
    --no-gzip)
        # a "feature" of the the wrapper script is that it can be used outside
        # the kernel tree. So keeping this around for backwards compatibility.
        compression=
        ;;
    -?)
	usage
	;;
    *)
	[ -z "$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
link_address='0x400000'
make_space=y

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 $object/redboot-8xx.o"
    binary=y
    ;;
simpleboot-virtex405-*)
    platformo="$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-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.$$"
strip_size=$(stat -c %s $vmz.$$)

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.$$"
        ;;
    .gz)
        gzip -n -f -9 "$vmz.$$"
        ;;
    *)
        # drop the compression suffix so the stripped vmlinux is used
        compression=
	;;
    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 gzip -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 [ "$platform" != "miboot" ]; then
    if [ -n "$link_address" ] ; then
        text_start="-Ttext $link_address"
    fi
#link everything
    ${CROSS}ld -m $format -T $lds $text_start $pie $nodl -o "$ofile" \
	$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")"
    rm -f "$odir/otheros.bld"
    gzip -n --force -9 --stdout "$ofile.bin" > "$odir/otheros.bld"
    ;;
esac
Commit	Line	Data
	1	#!/bin/sh
	2
	3	# Copyright (C) 2006 Paul Mackerras, IBM Corporation <paulus@samba.org>
	4	# This program may be used under the terms of version 2 of the GNU
	5	# General Public License.
	6
	7	# This script takes a kernel binary and optionally an initrd image
	8	# and/or a device-tree blob, and creates a bootable zImage for a
	9	# given platform.
	10
	11	# Options:
	12	# -o zImage specify output file
	13	# -p platform specify platform (links in $platform.o)
	14	# -i initrd specify initrd file
	15	# -d devtree specify device-tree blob
	16	# -s tree.dts specify device-tree source file (needs dtc installed)
	17	# -c cache $kernel.strip.gz (use if present & newer, else make)
	18	# -C prefix specify command prefix for cross-building tools
	19	# (strip, objcopy, ld)
	20	# -D dir specify directory containing data files used by script
	21	# (default ./arch/powerpc/boot)
	22	# -W dir specify working directory for temporary files (default .)
	23	# -z use gzip (legacy)
	24	# -Z zsuffix compression to use (gz, xz or none)
	25
	26	# Stop execution if any command fails
	27	set -e
	28
	29	# Allow for verbose output
	30	if [ "$V" = 1 ]; then
	31	set -x
	32	fi
	33
	34	# defaults
	35	kernel=
	36	ofile=zImage
	37	platform=of
	38	initrd=
	39	dtb=
	40	dts=
	41	cacheit=
	42	binary=
	43	compression=.gz
	44	pie=
	45	format=
	46
	47	# cross-compilation prefix
	48	CROSS=
	49
	50	# mkimage wrapper script
	51	MKIMAGE=$srctree/scripts/mkuboot.sh
	52
	53	# directory for object and other files used by this script
	54	object=arch/powerpc/boot
	55	objbin=$object
	56	dtc=scripts/dtc/dtc
	57
	58	# directory for working files
	59	tmpdir=.
	60
	61	usage() {
	62	echo 'Usage: wrapper [-o output] [-p platform] [-i initrd]' >&2
	63	echo ' [-d devtree] [-s tree.dts] [-c] [-C cross-prefix]' >&2
	64	echo ' [-D datadir] [-W workingdir] [-Z (gz\|xz\|none)]' >&2
	65	echo ' [--no-compression] [vmlinux]' >&2
	66	exit 1
	67	}
	68
	69	run_cmd() {
	70	if [ "$V" = 1 ]; then
	71	$* 2>&1
	72	else
	73	local msg
	74
	75	set +e
	76	msg=$($* 2>&1)
	77
	78	if [ $? -ne "0" ]; then
	79	echo $msg
	80	exit 1
	81	fi
	82	set -e
	83	fi
	84	}
	85
	86	while [ "$#" -gt 0 ]; do
	87	case "$1" in
	88	-o)
	89	shift
	90	[ "$#" -gt 0 ] \|\| usage
	91	ofile="$1"
	92	;;
	93	-p)
	94	shift
	95	[ "$#" -gt 0 ] \|\| usage
	96	platform="$1"
	97	;;
	98	-i)
	99	shift
	100	[ "$#" -gt 0 ] \|\| usage
	101	initrd="$1"
	102	;;
	103	-d)
	104	shift
	105	[ "$#" -gt 0 ] \|\| usage
	106	dtb="$1"
	107	;;
	108	-s)
	109	shift
	110	[ "$#" -gt 0 ] \|\| usage
	111	dts="$1"
	112	;;
	113	-c)
	114	cacheit=y
	115	;;
	116	-C)
	117	shift
	118	[ "$#" -gt 0 ] \|\| usage
	119	CROSS="$1"
	120	;;
	121	-D)
	122	shift
	123	[ "$#" -gt 0 ] \|\| usage
	124	object="$1"
	125	objbin="$1"
	126	;;
	127	-W)
	128	shift
	129	[ "$#" -gt 0 ] \|\| usage
	130	tmpdir="$1"
	131	;;
	132	-z)
	133	compression=.gz
	134	;;
	135	-Z)
	136	shift
	137	[ "$#" -gt 0 ] \|\| usage
	138	[ "$1" != "gz" -o "$1" != "xz" -o "$1" != "none" ] \|\| usage
	139
	140	compression=".$1"
	141
	142	if [ $compression = ".none" ]; then
	143	compression=
	144	fi
	145	;;
	146	--no-gzip)
	147	# a "feature" of the the wrapper script is that it can be used outside
	148	# the kernel tree. So keeping this around for backwards compatibility.
	149	compression=
	150	;;
	151	-?)
	152	usage
	153	;;
	154	*)
	155	[ -z "$kernel" ] \|\| usage
	156	kernel="$1"
	157	;;
	158	esac
	159	shift
	160	done
	161
	162
	163	if [ -n "$dts" ]; then
	164	if [ ! -r "$dts" -a -r "$object/dts/$dts" ]; then
	165	dts="$object/dts/$dts"
	166	fi
	167	if [ -z "$dtb" ]; then
	168	dtb="$platform.dtb"
	169	fi
	170	$dtc -O dtb -o "$dtb" -b 0 "$dts"
	171	fi
	172
	173	if [ -z "$kernel" ]; then
	174	kernel=vmlinux
	175	fi
	176
	177	LANG=C elfformat="`${CROSS}objdump -p "$kernel" \| grep 'file format' \| awk '{print $4}'`"
	178	case "$elfformat" in
	179	elf64-powerpcle) format=elf64lppc ;;
	180	elf64-powerpc) format=elf32ppc ;;
	181	elf32-powerpc) format=elf32ppc ;;
	182	esac
	183
	184	ld_version()
	185	{
	186	# Poached from scripts/ld-version.sh, but we don't want to call that because
	187	# this script (wrapper) is distributed separately from the kernel source.
	188	# Extract linker version number from stdin and turn into single number.
	189	awk '{
	190	gsub(".*\\)", "");
	191	gsub(".*version ", "");
	192	gsub("-.*", "");
	193	split($1,a, ".");
	194	print a[1]100000000 + a[2]1000000 + a[3]*10000;
	195	exit
	196	}'
	197	}
	198
	199	# Do not include PT_INTERP segment when linking pie. Non-pie linking
	200	# just ignores this option.
	201	LD_VERSION=$(${CROSS}ld --version \| ld_version)
	202	LD_NO_DL_MIN_VERSION=$(echo 2.26 \| ld_version)
	203	if [ "$LD_VERSION" -ge "$LD_NO_DL_MIN_VERSION" ] ; then
	204	nodl="--no-dynamic-linker"
	205	fi
	206
	207	platformo=$object/"$platform".o
	208	lds=$object/zImage.lds
	209	ext=strip
	210	objflags=-S
	211	tmp=$tmpdir/zImage.$$.o
	212	ksection=.kernel:vmlinux.strip
	213	isection=.kernel:initrd
	214	link_address='0x400000'
	215	make_space=y
	216
	217	case "$platform" in
	218	of)
	219	platformo="$object/of.o $object/epapr.o"
	220	make_space=n
	221	;;
	222	pseries)
	223	platformo="$object/pseries-head.o $object/of.o $object/epapr.o"
	224	link_address='0x4000000'
	225	if [ "$format" != "elf32ppc" ]; then
	226	link_address=
	227	pie=-pie
	228	fi
	229	make_space=n
	230	;;
	231	maple)
	232	platformo="$object/of.o $object/epapr.o"
	233	link_address='0x400000'
	234	make_space=n
	235	;;
	236	pmac\|chrp)
	237	platformo="$object/of.o $object/epapr.o"
	238	make_space=n
	239	;;
	240	coff)
	241	platformo="$object/crt0.o $object/of.o $object/epapr.o"
	242	lds=$object/zImage.coff.lds
	243	link_address='0x500000'
	244	make_space=n
	245	pie=
	246	;;
	247	miboot\|uboot*)
	248	# miboot and U-boot want just the bare bits, not an ELF binary
	249	ext=bin
	250	objflags="-O binary"
	251	tmp="$ofile"
	252	ksection=image
	253	isection=initrd
	254	;;
	255	cuboot*)
	256	binary=y
	257	compression=
	258	case "$platform" in
	259	-mpc866ads\|-mpc885ads\|-adder875\|*-ep88xc)
	260	platformo=$object/cuboot-8xx.o
	261	;;
	262	5200\|*-motionpro)
	263	platformo=$object/cuboot-52xx.o
	264	;;
	265	-pq2fads\|-ep8248e\|-mpc8272\|*-storcenter)
	266	platformo=$object/cuboot-pq2.o
	267	;;
	268	-mpc824)
	269	platformo=$object/cuboot-824x.o
	270	;;
	271	-mpc83\|-asp834x)
	272	platformo=$object/cuboot-83xx.o
	273	;;
	274	-tqm8541\|-mpc8560\|-tqm8560\|-tqm8555\|-ksi8560*)
	275	platformo=$object/cuboot-85xx-cpm2.o
	276	;;
	277	-mpc85\|-tqm85\|-sbc85)
	278	platformo=$object/cuboot-85xx.o
	279	;;
	280	*-amigaone)
	281	link_address='0x800000'
	282	;;
	283	esac
	284	;;
	285	ps3)
	286	platformo="$object/ps3-head.o $object/ps3-hvcall.o $object/ps3.o"
	287	lds=$object/zImage.ps3.lds
	288	compression=
	289	ext=bin
	290	objflags="-O binary --set-section-flags=.bss=contents,alloc,load,data"
	291	ksection=.kernel:vmlinux.bin
	292	isection=.kernel:initrd
	293	link_address=''
	294	make_space=n
	295	pie=
	296	;;
	297	ep88xc\|ep405\|ep8248e)
	298	platformo="$object/fixed-head.o $object/$platform.o"
	299	binary=y
	300	;;
	301	adder875-redboot)
	302	platformo="$object/fixed-head.o $object/redboot-8xx.o"
	303	binary=y
	304	;;
	305	simpleboot-virtex405-*)
	306	platformo="$object/virtex405-head.o $object/simpleboot.o $object/virtex.o"
	307	binary=y
	308	;;
	309	simpleboot-virtex440-*)
	310	platformo="$object/fixed-head.o $object/simpleboot.o $object/virtex.o"
	311	binary=y
	312	;;
	313	simpleboot-*)
	314	platformo="$object/fixed-head.o $object/simpleboot.o"
	315	binary=y
	316	;;
	317	asp834x-redboot)
	318	platformo="$object/fixed-head.o $object/redboot-83xx.o"
	319	binary=y
	320	;;
	321	xpedite52*)
	322	link_address='0x1400000'
	323	platformo=$object/cuboot-85xx.o
	324	;;
	325	gamecube\|wii)
	326	link_address='0x600000'
	327	platformo="$object/$platform-head.o $object/$platform.o"
	328	;;
	329	treeboot-currituck)
	330	link_address='0x1000000'
	331	;;
	332	treeboot-akebono)
	333	link_address='0x1000000'
	334	;;
	335	treeboot-iss4xx-mpic)
	336	platformo="$object/treeboot-iss4xx.o"
	337	;;
	338	epapr)
	339	platformo="$object/pseries-head.o $object/epapr.o $object/epapr-wrapper.o"
	340	link_address='0x20000000'
	341	pie=-pie
	342	;;
	343	mvme5100)
	344	platformo="$object/fixed-head.o $object/mvme5100.o"
	345	binary=y
	346	;;
	347	mvme7100)
	348	platformo="$object/motload-head.o $object/mvme7100.o"
	349	link_address='0x4000000'
	350	binary=y
	351	;;
	352	esac
	353
	354	vmz="$tmpdir/`basename \"$kernel\"`.$ext"
	355
	356	# Calculate the vmlinux.strip size
	357	${CROSS}objcopy $objflags "$kernel" "$vmz.$$"
	358	strip_size=$(stat -c %s $vmz.$$)
	359
	360	if [ -z "$cacheit" -o ! -f "$vmz$compression" -o "$vmz$compression" -ot "$kernel" ]; then
	361	# recompress the image if we need to
	362	case $compression in
	363	.xz)
	364	xz --check=crc32 -f -6 "$vmz.$$"
	365	;;
	366	.gz)
	367	gzip -n -f -9 "$vmz.$$"
	368	;;
	369	*)
	370	# drop the compression suffix so the stripped vmlinux is used
	371	compression=
	372	;;
	373	esac
	374
	375	if [ -n "$cacheit" ]; then
	376	mv -f "$vmz.$$$compression" "$vmz$compression"
	377	else
	378	vmz="$vmz.$$"
	379	fi
	380	else
	381	rm -f $vmz.$$
	382	fi
	383
	384	vmz="$vmz$compression"
	385
	386	if [ "$make_space" = "y" ]; then
	387	# Round the size to next higher MB limit
	388	round_size=$(((strip_size + 0xfffff) & 0xfff00000))
	389
	390	round_size=0x$(printf "%x" $round_size)
	391	link_addr=$(printf "%d" $link_address)
	392
	393	if [ $link_addr -lt $strip_size ]; then
	394	echo "INFO: Uncompressed kernel (size 0x$(printf "%x\n" $strip_size))" \
	395	"overlaps the address of the wrapper($link_address)"
	396	echo "INFO: Fixing the link_address of wrapper to ($round_size)"
	397	link_address=$round_size
	398	fi
	399	fi
	400
	401	# Extract kernel version information, some platforms want to include
	402	# it in the image header
	403	version=`${CROSS}strings "$kernel" \| grep '^Linux version [-0-9.]' \| \
	404	cut -d' ' -f3`
	405	if [ -n "$version" ]; then
	406	uboot_version="-n Linux-$version"
	407	fi
	408
	409	# physical offset of kernel image
	410	membase=`${CROSS}objdump -p "$kernel" \| grep -m 1 LOAD \| awk '{print $7}'`
	411
	412	case "$platform" in
	413	uboot)
	414	rm -f "$ofile"
	415	${MKIMAGE} -A ppc -O linux -T kernel -C gzip -a $membase -e $membase \
	416	$uboot_version -d "$vmz" "$ofile"
	417	if [ -z "$cacheit" ]; then
	418	rm -f "$vmz"
	419	fi
	420	exit 0
	421	;;
	422	uboot-obs600)
	423	rm -f "$ofile"
	424	# obs600 wants a multi image with an initrd, so we need to put a fake
	425	# one in even when building a "normal" image.
	426	if [ -n "$initrd" ]; then
	427	real_rd="$initrd"
	428	else
	429	real_rd=`mktemp`
	430	echo "\0" >>"$real_rd"
	431	fi
	432	${MKIMAGE} -A ppc -O linux -T multi -C gzip -a $membase -e $membase \
	433	$uboot_version -d "$vmz":"$real_rd":"$dtb" "$ofile"
	434	if [ -z "$initrd" ]; then
	435	rm -f "$real_rd"
	436	fi
	437	if [ -z "$cacheit" ]; then
	438	rm -f "$vmz"
	439	fi
	440	exit 0
	441	;;
	442	esac
	443
	444	addsec() {
	445	${CROSS}objcopy $4 $1 \
	446	--add-section=$3="$2" \
	447	--set-section-flags=$3=contents,alloc,load,readonly,data
	448	}
	449
	450	addsec $tmp "$vmz" $ksection $object/empty.o
	451	if [ -z "$cacheit" ]; then
	452	rm -f "$vmz"
	453	fi
	454
	455	if [ -n "$initrd" ]; then
	456	addsec $tmp "$initrd" $isection
	457	fi
	458
	459	if [ -n "$dtb" ]; then
	460	addsec $tmp "$dtb" .kernel:dtb
	461	if [ -n "$dts" ]; then
	462	rm $dtb
	463	fi
	464	fi
	465
	466	if [ "$platform" != "miboot" ]; then
	467	if [ -n "$link_address" ] ; then
	468	text_start="-Ttext $link_address"
	469	fi
	470	#link everything
	471	${CROSS}ld -m $format -T $lds $text_start $pie $nodl -o "$ofile" \
	472	$platformo $tmp $object/wrapper.a
	473	rm $tmp
	474	fi
	475
	476	# Some platforms need the zImage's entry point and base address
	477	base=0x`${CROSS}nm "$ofile" \| grep ' _start$' \| cut -d' ' -f1`
	478	entry=`${CROSS}objdump -f "$ofile" \| grep '^start address ' \| cut -d' ' -f3`
	479
	480	if [ -n "$binary" ]; then
	481	mv "$ofile" "$ofile".elf
	482	${CROSS}objcopy -O binary "$ofile".elf "$ofile"
	483	fi
	484
	485	# post-processing needed for some platforms
	486	case "$platform" in
	487	pseries\|chrp\|maple)
	488	$objbin/addnote "$ofile"
	489	;;
	490	coff)
	491	${CROSS}objcopy -O aixcoff-rs6000 --set-start "$entry" "$ofile"
	492	$objbin/hack-coff "$ofile"
	493	;;
	494	cuboot*)
	495	gzip -n -f -9 "$ofile"
	496	${MKIMAGE} -A ppc -O linux -T kernel -C gzip -a "$base" -e "$entry" \
	497	$uboot_version -d "$ofile".gz "$ofile"
	498	;;
	499	treeboot*)
	500	mv "$ofile" "$ofile.elf"
	501	$objbin/mktree "$ofile.elf" "$ofile" "$base" "$entry"
	502	if [ -z "$cacheit" ]; then
	503	rm -f "$ofile.elf"
	504	fi
	505	exit 0
	506	;;
	507	ps3)
	508	# The ps3's loader supports loading a gzipped binary image from flash
	509	# rom to ram addr zero. The loader then enters the system reset
	510	# vector at addr 0x100. A bootwrapper overlay is used to arrange for
	511	# a binary image of the kernel to be at addr zero, and yet have a
	512	# suitable bootwrapper entry at 0x100. To construct the final rom
	513	# image 512 bytes from offset 0x100 is copied to the bootwrapper
	514	# place holder at symbol __system_reset_kernel. The 512 bytes of the
	515	# bootwrapper entry code at symbol __system_reset_overlay is then
	516	# copied to offset 0x100. At runtime the bootwrapper program copies
	517	# the data at __system_reset_kernel back to addr 0x100.
	518
	519	system_reset_overlay=0x`${CROSS}nm "$ofile" \
	520	\| grep ' __system_reset_overlay$' \
	521	\| cut -d' ' -f1`
	522	system_reset_overlay=`printf "%d" $system_reset_overlay`
	523	system_reset_kernel=0x`${CROSS}nm "$ofile" \
	524	\| grep ' __system_reset_kernel$' \
	525	\| cut -d' ' -f1`
	526	system_reset_kernel=`printf "%d" $system_reset_kernel`
	527	overlay_dest="256"
	528	overlay_size="512"
	529
	530	${CROSS}objcopy -O binary "$ofile" "$ofile.bin"
	531
	532	run_cmd dd if="$ofile.bin" of="$ofile.bin" conv=notrunc \
	533	skip=$overlay_dest seek=$system_reset_kernel \
	534	count=$overlay_size bs=1
	535
	536	run_cmd dd if="$ofile.bin" of="$ofile.bin" conv=notrunc \
	537	skip=$system_reset_overlay seek=$overlay_dest \
	538	count=$overlay_size bs=1
	539
	540	odir="$(dirname "$ofile.bin")"
	541	rm -f "$odir/otheros.bld"
	542	gzip -n --force -9 --stdout "$ofile.bin" > "$odir/otheros.bld"
	543	;;
	544	esac