545 lines
13 KiB
Bash
Executable File
545 lines
13 KiB
Bash
Executable File
#!/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=$(${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.$$"
|
|
;;
|
|
*)
|
|
# drop the compression suffix so the stripped vmlinux is used
|
|
compression=
|
|
;;
|
|
esac
|
|
|
|
if [ -n "$cacheit" ]; then
|
|
mv -f "$vmz.$$$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
|