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|
#!/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
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 $object/redboot-8xx.o"
binary=y
;;
simpleboot-virtex405-*)
platformo="$object/virtex405-head.o $object/simpleboot.o $object/virtex.o"
|