blob: 4832be880998af00c6a0d1f6c5493393c8e52d6f [file] [log] [blame]
Paul Mackerras2bf11812006-09-27 22:47:03 +10001#!/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 $kernel.strip.gz (use if present & newer, else make)
18# -C prefix specify command prefix for cross-building tools
19# (strip, objcopy, ld)
20# -D dir specify directory containing data files used by script
21# (default ./arch/powerpc/boot)
22# -W dir specify working directory for temporary files (default .)
23
Grant Likelyd4740372007-10-23 14:27:36 +100024# Stop execution if any command fails
25set -e
26
Grant Likely7f66c1f2007-10-23 14:27:31 +100027# Allow for verbose output
28if [ "$V" = 1 ]; then
29 set -x
30fi
31
Paul Mackerras2bf11812006-09-27 22:47:03 +100032# defaults
33kernel=
34ofile=zImage
35platform=of
36initrd=
37dtb=
38dts=
39cacheit=
Scott Wood11c146c2007-09-14 14:58:25 -050040binary=
Scott Wooda9903812007-03-16 12:27:59 -050041gzip=.gz
Paul Mackerras2bf11812006-09-27 22:47:03 +100042
43# cross-compilation prefix
44CROSS=
45
46# directory for object and other files used by this script
47object=arch/powerpc/boot
David Woodhouse5c539ee32007-12-03 13:52:05 +110048objbin=$object
Paul Mackerras2bf11812006-09-27 22:47:03 +100049
50# directory for working files
51tmpdir=.
52
53usage() {
54 echo 'Usage: wrapper [-o output] [-p platform] [-i initrd]' >&2
55 echo ' [-d devtree] [-s tree.dts] [-c] [-C cross-prefix]' >&2
Scott Wooda9903812007-03-16 12:27:59 -050056 echo ' [-D datadir] [-W workingdir] [--no-gzip] [vmlinux]' >&2
Paul Mackerras2bf11812006-09-27 22:47:03 +100057 exit 1
58}
59
60while [ "$#" -gt 0 ]; do
61 case "$1" in
62 -o)
63 shift
64 [ "$#" -gt 0 ] || usage
65 ofile="$1"
66 ;;
67 -p)
68 shift
69 [ "$#" -gt 0 ] || usage
70 platform="$1"
71 ;;
72 -i)
73 shift
74 [ "$#" -gt 0 ] || usage
75 initrd="$1"
76 ;;
77 -d)
78 shift
79 [ "$#" -gt 0 ] || usage
80 dtb="$1"
81 ;;
82 -s)
83 shift
84 [ "$#" -gt 0 ] || usage
85 dts="$1"
86 ;;
87 -c)
88 cacheit=y
89 ;;
90 -C)
91 shift
92 [ "$#" -gt 0 ] || usage
93 CROSS="$1"
94 ;;
95 -D)
96 shift
97 [ "$#" -gt 0 ] || usage
98 object="$1"
David Woodhouse5c539ee32007-12-03 13:52:05 +110099 objbin="$1"
Paul Mackerras2bf11812006-09-27 22:47:03 +1000100 ;;
101 -W)
102 shift
103 [ "$#" -gt 0 ] || usage
104 tmpdir="$1"
105 ;;
Scott Wooda9903812007-03-16 12:27:59 -0500106 --no-gzip)
107 gzip=
108 ;;
Paul Mackerras2bf11812006-09-27 22:47:03 +1000109 -?)
110 usage
111 ;;
112 *)
113 [ -z "$kernel" ] || usage
114 kernel="$1"
115 ;;
116 esac
117 shift
118done
119
120if [ -n "$dts" ]; then
David Woodhouse701172d12007-12-03 13:49:24 +1100121 if [ ! -r "$dts" -a -r "$object/dts/$dts" ]; then
122 dts="$object/dts/$dts"
123 fi
Paul Mackerras2bf11812006-09-27 22:47:03 +1000124 if [ -z "$dtb" ]; then
125 dtb="$platform.dtb"
126 fi
David Gibsone2dc87a2007-12-18 15:07:20 +1100127 $object/dtc -O dtb -o "$dtb" -b 0 "$dts"
Paul Mackerras2bf11812006-09-27 22:47:03 +1000128fi
129
130if [ -z "$kernel" ]; then
131 kernel=vmlinux
132fi
133
134platformo=$object/"$platform".o
135lds=$object/zImage.lds
136ext=strip
137objflags=-S
138tmp=$tmpdir/zImage.$$.o
139ksection=.kernel:vmlinux.strip
140isection=.kernel:initrd
141
142case "$platform" in
143pmac|pseries|chrp)
144 platformo=$object/of.o
145 ;;
Milton Miller627aa942007-05-31 01:29:01 +1000146coff)
Paul Mackerras2bf11812006-09-27 22:47:03 +1000147 platformo=$object/of.o
148 lds=$object/zImage.coff.lds
149 ;;
150miboot|uboot)
151 # miboot and U-boot want just the bare bits, not an ELF binary
152 ext=bin
153 objflags="-O binary"
154 tmp="$ofile"
155 ksection=image
156 isection=initrd
157 ;;
Scott Wood0fdd7172007-04-17 09:25:50 +1000158cuboot*)
Scott Wood11c146c2007-09-14 14:58:25 -0500159 binary=y
Scott Wood0fdd7172007-04-17 09:25:50 +1000160 gzip=
Grant Likely25431332008-02-07 05:18:34 +1100161 case "$platform" in
162 *-mpc885ads|*-adder875*|*-ep88xc)
163 platformo=$object/cuboot-8xx.o
164 ;;
165 *5200*|*-motionpro)
166 platformo=$object/cuboot-52xx.o
167 ;;
168 *-pq2fads|*-ep8248e|*-mpc8272*|*-storcenter)
169 platformo=$object/cuboot-pq2.o
170 ;;
171 *-mpc824*)
172 platformo=$object/cuboot-824x.o
173 ;;
Bryan O'Donoghue59d13f92008-05-08 13:47:00 +0100174 *-mpc83*|*-asp834x*)
Grant Likely25431332008-02-07 05:18:34 +1100175 platformo=$object/cuboot-83xx.o
176 ;;
Alexandr Smirnovff880112008-03-04 19:34:26 +0300177 *-tqm8541|*-mpc8560*|*-tqm8560|*-tqm8555|*-ksi8560*)
Grant Likely25431332008-02-07 05:18:34 +1100178 platformo=$object/cuboot-85xx-cpm2.o
179 ;;
Paul Gortmakera72a6f52008-03-18 16:13:10 +1100180 *-mpc85*|*-tqm8540|*-sbc85*)
Grant Likely25431332008-02-07 05:18:34 +1100181 platformo=$object/cuboot-85xx.o
182 ;;
183 esac
Scott Wood0fdd7172007-04-17 09:25:50 +1000184 ;;
Geoff Levandbafdb642007-07-04 09:07:18 +1000185ps3)
186 platformo="$object/ps3-head.o $object/ps3-hvcall.o $object/ps3.o"
187 lds=$object/zImage.ps3.lds
188 gzip=
189 ext=bin
190 objflags="-O binary --set-section-flags=.bss=contents,alloc,load,data"
191 ksection=.kernel:vmlinux.bin
192 isection=.kernel:initrd
193 ;;
Scott Wooda55387e2008-02-20 12:33:38 -0600194ep88xc|ep405|ep8248e)
Scott Wood11c146c2007-09-14 14:58:25 -0500195 platformo="$object/fixed-head.o $object/$platform.o"
196 binary=y
197 ;;
Scott Wooda55387e2008-02-20 12:33:38 -0600198adder875-redboot)
199 platformo="$object/fixed-head.o $object/redboot-8xx.o"
200 binary=y
201 ;;
Grant Likelyd2477b52008-03-19 04:07:43 +1100202simpleboot-virtex405-*)
203 platformo="$object/virtex405-head.o $object/simpleboot.o"
204 binary=y
205 ;;
Bryan O'Donoghue59d13f92008-05-08 13:47:00 +0100206asp834x-redboot)
207 platformo="$object/fixed-head.o $object/redboot-83xx.o"
208 binary=y
209 ;;
Paul Mackerras2bf11812006-09-27 22:47:03 +1000210esac
211
212vmz="$tmpdir/`basename \"$kernel\"`.$ext"
Milton Miller1383a342007-03-28 02:21:04 -0600213if [ -z "$cacheit" -o ! -f "$vmz$gzip" -o "$vmz$gzip" -ot "$kernel" ]; then
Paul Mackerras2bf11812006-09-27 22:47:03 +1000214 ${CROSS}objcopy $objflags "$kernel" "$vmz.$$"
Scott Wooda9903812007-03-16 12:27:59 -0500215
216 if [ -n "$gzip" ]; then
217 gzip -f -9 "$vmz.$$"
218 fi
219
Paul Mackerras2bf11812006-09-27 22:47:03 +1000220 if [ -n "$cacheit" ]; then
Scott Wooda9903812007-03-16 12:27:59 -0500221 mv -f "$vmz.$$$gzip" "$vmz$gzip"
Paul Mackerras2bf11812006-09-27 22:47:03 +1000222 else
223 vmz="$vmz.$$"
224 fi
225fi
226
Scott Wooda9903812007-03-16 12:27:59 -0500227vmz="$vmz$gzip"
228
David Gibsona6afacb2007-05-01 10:20:20 +1000229# Extract kernel version information, some platforms want to include
230# it in the image header
231version=`${CROSS}strings "$kernel" | grep '^Linux version [-0-9.]' | \
232 cut -d' ' -f3`
233if [ -n "$version" ]; then
234 uboot_version="-n Linux-$version"
235fi
Scott Wood0fdd7172007-04-17 09:25:50 +1000236
Kumar Galab18796d2008-04-16 05:52:29 +1000237# physical offset of kernel image
238membase=`${CROSS}objdump -p "$kernel" | grep -m 1 LOAD | awk '{print $7}'`
239
Scott Wood0fdd7172007-04-17 09:25:50 +1000240case "$platform" in
241uboot)
242 rm -f "$ofile"
Kumar Galab18796d2008-04-16 05:52:29 +1000243 mkimage -A ppc -O linux -T kernel -C gzip -a $membase -e $membase \
David Gibsona6afacb2007-05-01 10:20:20 +1000244 $uboot_version -d "$vmz" "$ofile"
Paul Mackerras2bf11812006-09-27 22:47:03 +1000245 if [ -z "$cacheit" ]; then
Scott Wooda9903812007-03-16 12:27:59 -0500246 rm -f "$vmz"
Paul Mackerras2bf11812006-09-27 22:47:03 +1000247 fi
248 exit 0
249 ;;
250esac
251
252addsec() {
253 ${CROSS}objcopy $4 $1 \
254 --add-section=$3="$2" \
255 --set-section-flags=$3=contents,alloc,load,readonly,data
256}
257
Scott Wooda9903812007-03-16 12:27:59 -0500258addsec $tmp "$vmz" $ksection $object/empty.o
Paul Mackerras2bf11812006-09-27 22:47:03 +1000259if [ -z "$cacheit" ]; then
Scott Wooda9903812007-03-16 12:27:59 -0500260 rm -f "$vmz"
Paul Mackerras2bf11812006-09-27 22:47:03 +1000261fi
262
263if [ -n "$initrd" ]; then
Mark A. Greerc8885542006-10-16 13:49:27 -0700264 addsec $tmp "$initrd" $isection
Paul Mackerras2bf11812006-09-27 22:47:03 +1000265fi
266
267if [ -n "$dtb" ]; then
Mark A. Greerc8885542006-10-16 13:49:27 -0700268 addsec $tmp "$dtb" .kernel:dtb
Mark A. Greere9c4b4b2006-11-08 17:50:44 -0700269 if [ -n "$dts" ]; then
270 rm $dtb
271 fi
Paul Mackerras2bf11812006-09-27 22:47:03 +1000272fi
273
274if [ "$platform" != "miboot" ]; then
275 ${CROSS}ld -m elf32ppc -T $lds -o "$ofile" \
David Gibsoncd197ff2007-03-05 14:24:52 +1100276 $platformo $tmp $object/wrapper.a
Paul Mackerras2bf11812006-09-27 22:47:03 +1000277 rm $tmp
278fi
279
David Gibsona6afacb2007-05-01 10:20:20 +1000280# Some platforms need the zImage's entry point and base address
281base=0x`${CROSS}nm "$ofile" | grep ' _start$' | cut -d' ' -f1`
282entry=`${CROSS}objdump -f "$ofile" | grep '^start address ' | cut -d' ' -f3`
283
Scott Wood11c146c2007-09-14 14:58:25 -0500284if [ -n "$binary" ]; then
285 mv "$ofile" "$ofile".elf
Scott Woodaeb45522007-10-25 02:56:28 +1000286 ${CROSS}objcopy -O binary "$ofile".elf "$ofile"
Scott Wood11c146c2007-09-14 14:58:25 -0500287fi
288
Paul Mackerras2bf11812006-09-27 22:47:03 +1000289# post-processing needed for some platforms
290case "$platform" in
291pseries|chrp)
David Woodhouse5c539ee32007-12-03 13:52:05 +1100292 $objbin/addnote "$ofile"
Paul Mackerras2bf11812006-09-27 22:47:03 +1000293 ;;
Milton Miller627aa942007-05-31 01:29:01 +1000294coff)
David Gibsoncd197ff2007-03-05 14:24:52 +1100295 ${CROSS}objcopy -O aixcoff-rs6000 --set-start "$entry" "$ofile"
David Woodhouse5c539ee32007-12-03 13:52:05 +1100296 $objbin/hack-coff "$ofile"
Paul Mackerras2bf11812006-09-27 22:47:03 +1000297 ;;
Scott Wood0fdd7172007-04-17 09:25:50 +1000298cuboot*)
Scott Woodaeb45522007-10-25 02:56:28 +1000299 gzip -f -9 "$ofile"
Scott Wood0fdd7172007-04-17 09:25:50 +1000300 mkimage -A ppc -O linux -T kernel -C gzip -a "$base" -e "$entry" \
Scott Woodaeb45522007-10-25 02:56:28 +1000301 $uboot_version -d "$ofile".gz "$ofile"
Scott Wood0fdd7172007-04-17 09:25:50 +1000302 ;;
David Gibsonf6dfc802007-05-08 14:10:01 +1000303treeboot*)
304 mv "$ofile" "$ofile.elf"
David Woodhouse5c539ee32007-12-03 13:52:05 +1100305 $objbin/mktree "$ofile.elf" "$ofile" "$base" "$entry"
David Gibsonf6dfc802007-05-08 14:10:01 +1000306 if [ -z "$cacheit" ]; then
307 rm -f "$ofile.elf"
308 fi
309 exit 0
310 ;;
Geoff Levandbafdb642007-07-04 09:07:18 +1000311ps3)
Geoff Levand5761eaa2008-03-28 07:41:45 +1100312 # The ps3's loader supports loading a gzipped binary image from flash
313 # rom to ram addr zero. The loader then enters the system reset
314 # vector at addr 0x100. A bootwrapper overlay is used to arrange for
315 # a binary image of the kernel to be at addr zero, and yet have a
316 # suitable bootwrapper entry at 0x100. To construct the final rom
317 # image 512 bytes from offset 0x100 is copied to the bootwrapper
318 # place holder at symbol __system_reset_kernel. The 512 bytes of the
319 # bootwrapper entry code at symbol __system_reset_overlay is then
320 # copied to offset 0x100. At runtime the bootwrapper program copies
321 # the data at __system_reset_kernel back to addr 0x100.
Geoff Levandbafdb642007-07-04 09:07:18 +1000322
Scott Woodaeb45522007-10-25 02:56:28 +1000323 system_reset_overlay=0x`${CROSS}nm "$ofile" \
Geoff Levandbafdb642007-07-04 09:07:18 +1000324 | grep ' __system_reset_overlay$' \
325 | cut -d' ' -f1`
326 system_reset_overlay=`printf "%d" $system_reset_overlay`
Scott Woodaeb45522007-10-25 02:56:28 +1000327 system_reset_kernel=0x`${CROSS}nm "$ofile" \
Geoff Levandbafdb642007-07-04 09:07:18 +1000328 | grep ' __system_reset_kernel$' \
329 | cut -d' ' -f1`
330 system_reset_kernel=`printf "%d" $system_reset_kernel`
331 overlay_dest="256"
Geoff Levand5761eaa2008-03-28 07:41:45 +1100332 overlay_size="512"
Geoff Levandbafdb642007-07-04 09:07:18 +1000333
Scott Woodaeb45522007-10-25 02:56:28 +1000334 ${CROSS}objcopy -O binary "$ofile" "$ofile.bin"
335
Grant Likelyd4740372007-10-23 14:27:36 +1000336 dd if="$ofile.bin" of="$ofile.bin" conv=notrunc \
337 skip=$overlay_dest seek=$system_reset_kernel \
338 count=$overlay_size bs=1
Geoff Levandbafdb642007-07-04 09:07:18 +1000339
Grant Likelyd4740372007-10-23 14:27:36 +1000340 dd if="$ofile.bin" of="$ofile.bin" conv=notrunc \
341 skip=$system_reset_overlay seek=$overlay_dest \
342 count=$overlay_size bs=1
Geoff Levandbafdb642007-07-04 09:07:18 +1000343
David Woodhouse928b9692007-12-03 13:48:03 +1100344 odir="$(dirname "$ofile.bin")"
345 rm -f "$odir/otheros.bld"
346 gzip --force -9 --stdout "$ofile.bin" > "$odir/otheros.bld"
Geoff Levandbafdb642007-07-04 09:07:18 +1000347 ;;
Paul Mackerras2bf11812006-09-27 22:47:03 +1000348esac