298 lines
6.7 KiB
Bash
Executable File
298 lines
6.7 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 $kernel.strip.gz (use if present & newer, else make)
|
|
# -C prefix specify command prefix for cross-building tools
|
|
# (strip, objcopy, ld)
|
|
# -D dir specify directory containing data files used by script
|
|
# (default ./arch/powerpc/boot)
|
|
# -W dir specify working directory for temporary files (default .)
|
|
|
|
# defaults
|
|
kernel=
|
|
ofile=zImage
|
|
platform=of
|
|
initrd=
|
|
dtb=
|
|
dts=
|
|
cacheit=
|
|
gzip=.gz
|
|
|
|
# cross-compilation prefix
|
|
CROSS=
|
|
|
|
# directory for object and other files used by this script
|
|
object=arch/powerpc/boot
|
|
|
|
# directory for working files
|
|
tmpdir=.
|
|
|
|
usage() {
|
|
echo 'Usage: wrapper [-o output] [-p platform] [-i initrd]' >&2
|
|
echo ' [-d devtree] [-s tree.dts] [-c] [-C cross-prefix]' >&2
|
|
echo ' [-D datadir] [-W workingdir] [--no-gzip] [vmlinux]' >&2
|
|
exit 1
|
|
}
|
|
|
|
while [ "$#" -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="$1"
|
|
;;
|
|
-W)
|
|
shift
|
|
[ "$#" -gt 0 ] || usage
|
|
tmpdir="$1"
|
|
;;
|
|
--no-gzip)
|
|
gzip=
|
|
;;
|
|
-?)
|
|
usage
|
|
;;
|
|
*)
|
|
[ -z "$kernel" ] || usage
|
|
kernel="$1"
|
|
;;
|
|
esac
|
|
shift
|
|
done
|
|
|
|
if [ -n "$dts" ]; then
|
|
if [ -z "$dtb" ]; then
|
|
dtb="$platform.dtb"
|
|
fi
|
|
dtc -O dtb -o "$dtb" -b 0 -V 16 "$dts" || exit 1
|
|
fi
|
|
|
|
if [ -z "$kernel" ]; then
|
|
kernel=vmlinux
|
|
fi
|
|
|
|
platformo=$object/"$platform".o
|
|
lds=$object/zImage.lds
|
|
ext=strip
|
|
objflags=-S
|
|
tmp=$tmpdir/zImage.$$.o
|
|
ksection=.kernel:vmlinux.strip
|
|
isection=.kernel:initrd
|
|
|
|
case "$platform" in
|
|
pmac|pseries|chrp)
|
|
platformo=$object/of.o
|
|
;;
|
|
coff)
|
|
platformo=$object/of.o
|
|
lds=$object/zImage.coff.lds
|
|
;;
|
|
miboot|uboot)
|
|
# miboot and U-boot want just the bare bits, not an ELF binary
|
|
ext=bin
|
|
objflags="-O binary"
|
|
tmp="$ofile"
|
|
ksection=image
|
|
isection=initrd
|
|
;;
|
|
cuboot*)
|
|
gzip=
|
|
;;
|
|
ps3)
|
|
platformo="$object/ps3-head.o $object/ps3-hvcall.o $object/ps3.o"
|
|
lds=$object/zImage.ps3.lds
|
|
gzip=
|
|
ext=bin
|
|
objflags="-O binary --set-section-flags=.bss=contents,alloc,load,data"
|
|
ksection=.kernel:vmlinux.bin
|
|
isection=.kernel:initrd
|
|
;;
|
|
esac
|
|
|
|
vmz="$tmpdir/`basename \"$kernel\"`.$ext"
|
|
if [ -z "$cacheit" -o ! -f "$vmz$gzip" -o "$vmz$gzip" -ot "$kernel" ]; then
|
|
${CROSS}objcopy $objflags "$kernel" "$vmz.$$"
|
|
|
|
if [ -n "$gzip" ]; then
|
|
gzip -f -9 "$vmz.$$"
|
|
fi
|
|
|
|
if [ -n "$cacheit" ]; then
|
|
mv -f "$vmz.$$$gzip" "$vmz$gzip"
|
|
else
|
|
vmz="$vmz.$$"
|
|
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`
|
|
if [ -n "$version" ]; then
|
|
uboot_version="-n Linux-$version"
|
|
fi
|
|
|
|
case "$platform" in
|
|
uboot)
|
|
rm -f "$ofile"
|
|
mkimage -A ppc -O linux -T kernel -C gzip -a 00000000 -e 00000000 \
|
|
$uboot_version -d "$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 $object/empty.o
|
|
if [ -z "$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
|
|
${CROSS}ld -m elf32ppc -T $lds -o "$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`
|
|
|
|
# post-processing needed for some platforms
|
|
case "$platform" in
|
|
pseries|chrp)
|
|
$object/addnote "$ofile"
|
|
;;
|
|
coff)
|
|
${CROSS}objcopy -O aixcoff-rs6000 --set-start "$entry" "$ofile"
|
|
$object/hack-coff "$ofile"
|
|
;;
|
|
cuboot*)
|
|
mv "$ofile" "$ofile".elf
|
|
${CROSS}objcopy -O binary "$ofile".elf "$ofile".bin
|
|
gzip -f -9 "$ofile".bin
|
|
mkimage -A ppc -O linux -T kernel -C gzip -a "$base" -e "$entry" \
|
|
$uboot_version -d "$ofile".bin.gz "$ofile"
|
|
;;
|
|
treeboot*)
|
|
mv "$ofile" "$ofile.elf"
|
|
$object/mktree "$ofile.elf" "$ofile" "$base" "$entry"
|
|
if [ -z "$cacheit" ]; then
|
|
rm -f "$ofile.elf"
|
|
fi
|
|
exit 0
|
|
;;
|
|
ps3)
|
|
# The ps3's loader supports loading gzipped binary images from flash
|
|
# rom to addr zero. The loader enters the image at addr 0x100. A
|
|
# bootwrapper overlay is use to arrange for the kernel to be loaded
|
|
# to addr zero and to have a suitable bootwrapper entry at 0x100.
|
|
# To construct the rom image, 0x100 bytes from offset 0x100 in the
|
|
# kernel is copied to the bootwrapper symbol __system_reset_kernel.
|
|
# The 0x100 bytes at the bootwrapper symbol __system_reset_overlay is
|
|
# then copied to offset 0x100. At runtime the bootwrapper program
|
|
# copies the 0x100 bytes at __system_reset_kernel to addr 0x100.
|
|
|
|
system_reset_overlay=0x`${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" $system_reset_kernel`
|
|
overlay_dest="256"
|
|
overlay_size="256"
|
|
|
|
rm -f "$object/otheros.bld"
|
|
|
|
${CROSS}objcopy -O binary "$ofile" "$ofile.bin"
|
|
|
|
msg=$(dd if="$ofile.bin" of="$ofile.bin" conv=notrunc \
|
|
skip=$overlay_dest seek=$system_reset_kernel \
|
|
count=$overlay_size bs=1 2>&1)
|
|
|
|
if [ $? -ne "0" ]; then
|
|
echo $msg
|
|
exit 1
|
|
fi
|
|
|
|
msg=$(dd if="$ofile.bin" of="$ofile.bin" conv=notrunc \
|
|
skip=$system_reset_overlay seek=$overlay_dest \
|
|
count=$overlay_size bs=1 2>&1)
|
|
|
|
if [ $? -ne "0" ]; then
|
|
echo $msg
|
|
exit 2
|
|
fi
|
|
|
|
gzip --force -9 --stdout "$ofile.bin" > "$object/otheros.bld"
|
|
;;
|
|
esac
|