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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 Woodhouse5c539ee2007-12-03 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 Woodhouse5c539ee2007-12-03 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 Woodhouse701172d2007-12-03 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
Tony Breeds9b09c6d2008-06-24 14:20:29 +1000141link_address='0x400000'
Paul Mackerras2bf11812006-09-27 22:47:03 +1000142
143case "$platform" in
Tony Breeds9b09c6d2008-06-24 14:20:29 +1000144pseries)
145 platformo=$object/of.o
146 link_address='0x4000000'
147 ;;
148pmac|chrp)
Paul Mackerras2bf11812006-09-27 22:47:03 +1000149 platformo=$object/of.o
150 ;;
Milton Miller627aa942007-05-31 01:29:01 +1000151coff)
Paul Mackerras2bf11812006-09-27 22:47:03 +1000152 platformo=$object/of.o
153 lds=$object/zImage.coff.lds
Tony Breeds9b09c6d2008-06-24 14:20:29 +1000154 link_address='0x500000'
Paul Mackerras2bf11812006-09-27 22:47:03 +1000155 ;;
156miboot|uboot)
157 # miboot and U-boot want just the bare bits, not an ELF binary
158 ext=bin
159 objflags="-O binary"
160 tmp="$ofile"
161 ksection=image
162 isection=initrd
163 ;;
Scott Wood0fdd7172007-04-17 09:25:50 +1000164cuboot*)
Scott Wood11c146c2007-09-14 14:58:25 -0500165 binary=y
Scott Wood0fdd7172007-04-17 09:25:50 +1000166 gzip=
Grant Likely25431332008-02-07 05:18:34 +1100167 case "$platform" in
Scott Wood8dd217b2008-07-31 19:10:22 +0300168 *-mpc866ads|*-mpc885ads|*-adder875*|*-ep88xc)
Grant Likely25431332008-02-07 05:18:34 +1100169 platformo=$object/cuboot-8xx.o
170 ;;
171 *5200*|*-motionpro)
172 platformo=$object/cuboot-52xx.o
173 ;;
174 *-pq2fads|*-ep8248e|*-mpc8272*|*-storcenter)
175 platformo=$object/cuboot-pq2.o
176 ;;
177 *-mpc824*)
178 platformo=$object/cuboot-824x.o
179 ;;
Bryan O'Donoghue59d13f92008-05-08 13:47:00 +0100180 *-mpc83*|*-asp834x*)
Grant Likely25431332008-02-07 05:18:34 +1100181 platformo=$object/cuboot-83xx.o
182 ;;
Alexandr Smirnovff880112008-03-04 19:34:26 +0300183 *-tqm8541|*-mpc8560*|*-tqm8560|*-tqm8555|*-ksi8560*)
Grant Likely25431332008-02-07 05:18:34 +1100184 platformo=$object/cuboot-85xx-cpm2.o
185 ;;
Wolfgang Grandegger6dd1b642008-06-06 13:50:04 +0200186 *-mpc85*|*-tqm85*|*-sbc85*)
Grant Likely25431332008-02-07 05:18:34 +1100187 platformo=$object/cuboot-85xx.o
188 ;;
189 esac
Scott Wood0fdd7172007-04-17 09:25:50 +1000190 ;;
Geoff Levandbafdb642007-07-04 09:07:18 +1000191ps3)
192 platformo="$object/ps3-head.o $object/ps3-hvcall.o $object/ps3.o"
193 lds=$object/zImage.ps3.lds
194 gzip=
195 ext=bin
196 objflags="-O binary --set-section-flags=.bss=contents,alloc,load,data"
197 ksection=.kernel:vmlinux.bin
198 isection=.kernel:initrd
Tony Breeds9b09c6d2008-06-24 14:20:29 +1000199 link_address=''
Geoff Levandbafdb642007-07-04 09:07:18 +1000200 ;;
Scott Wooda55387e2008-02-20 12:33:38 -0600201ep88xc|ep405|ep8248e)
Scott Wood11c146c2007-09-14 14:58:25 -0500202 platformo="$object/fixed-head.o $object/$platform.o"
203 binary=y
204 ;;
Scott Wooda55387e2008-02-20 12:33:38 -0600205adder875-redboot)
206 platformo="$object/fixed-head.o $object/redboot-8xx.o"
207 binary=y
208 ;;
Grant Likelyd2477b52008-03-19 04:07:43 +1100209simpleboot-virtex405-*)
John Linnd58577d2008-07-02 15:11:28 -0700210 platformo="$object/virtex405-head.o $object/simpleboot.o $object/virtex.o"
211 binary=y
212 ;;
213simpleboot-virtex440-*)
214 platformo="$object/simpleboot.o $object/virtex.o"
Grant Likelyd2477b52008-03-19 04:07:43 +1100215 binary=y
216 ;;
Grant Likely1d46e372008-07-04 00:59:37 -0600217simpleboot-*)
218 platformo="$object/simpleboot.o"
219 binary=y
220 ;;
Bryan O'Donoghue59d13f92008-05-08 13:47:00 +0100221asp834x-redboot)
222 platformo="$object/fixed-head.o $object/redboot-83xx.o"
223 binary=y
224 ;;
Paul Mackerras2bf11812006-09-27 22:47:03 +1000225esac
226
227vmz="$tmpdir/`basename \"$kernel\"`.$ext"
Milton Miller1383a342007-03-28 02:21:04 -0600228if [ -z "$cacheit" -o ! -f "$vmz$gzip" -o "$vmz$gzip" -ot "$kernel" ]; then
Paul Mackerras2bf11812006-09-27 22:47:03 +1000229 ${CROSS}objcopy $objflags "$kernel" "$vmz.$$"
Scott Wooda9903812007-03-16 12:27:59 -0500230
231 if [ -n "$gzip" ]; then
232 gzip -f -9 "$vmz.$$"
233 fi
234
Paul Mackerras2bf11812006-09-27 22:47:03 +1000235 if [ -n "$cacheit" ]; then
Scott Wooda9903812007-03-16 12:27:59 -0500236 mv -f "$vmz.$$$gzip" "$vmz$gzip"
Paul Mackerras2bf11812006-09-27 22:47:03 +1000237 else
238 vmz="$vmz.$$"
239 fi
240fi
241
Scott Wooda9903812007-03-16 12:27:59 -0500242vmz="$vmz$gzip"
243
David Gibsona6afacb2007-05-01 10:20:20 +1000244# Extract kernel version information, some platforms want to include
245# it in the image header
246version=`${CROSS}strings "$kernel" | grep '^Linux version [-0-9.]' | \
247 cut -d' ' -f3`
248if [ -n "$version" ]; then
249 uboot_version="-n Linux-$version"
250fi
Scott Wood0fdd7172007-04-17 09:25:50 +1000251
Kumar Galab18796d2008-04-16 05:52:29 +1000252# physical offset of kernel image
253membase=`${CROSS}objdump -p "$kernel" | grep -m 1 LOAD | awk '{print $7}'`
254
Scott Wood0fdd7172007-04-17 09:25:50 +1000255case "$platform" in
256uboot)
257 rm -f "$ofile"
Kumar Galab18796d2008-04-16 05:52:29 +1000258 mkimage -A ppc -O linux -T kernel -C gzip -a $membase -e $membase \
David Gibsona6afacb2007-05-01 10:20:20 +1000259 $uboot_version -d "$vmz" "$ofile"
Paul Mackerras2bf11812006-09-27 22:47:03 +1000260 if [ -z "$cacheit" ]; then
Scott Wooda9903812007-03-16 12:27:59 -0500261 rm -f "$vmz"
Paul Mackerras2bf11812006-09-27 22:47:03 +1000262 fi
263 exit 0
264 ;;
265esac
266
267addsec() {
268 ${CROSS}objcopy $4 $1 \
269 --add-section=$3="$2" \
270 --set-section-flags=$3=contents,alloc,load,readonly,data
271}
272
Scott Wooda9903812007-03-16 12:27:59 -0500273addsec $tmp "$vmz" $ksection $object/empty.o
Paul Mackerras2bf11812006-09-27 22:47:03 +1000274if [ -z "$cacheit" ]; then
Scott Wooda9903812007-03-16 12:27:59 -0500275 rm -f "$vmz"
Paul Mackerras2bf11812006-09-27 22:47:03 +1000276fi
277
278if [ -n "$initrd" ]; then
Mark A. Greerc8885542006-10-16 13:49:27 -0700279 addsec $tmp "$initrd" $isection
Paul Mackerras2bf11812006-09-27 22:47:03 +1000280fi
281
282if [ -n "$dtb" ]; then
Mark A. Greerc8885542006-10-16 13:49:27 -0700283 addsec $tmp "$dtb" .kernel:dtb
Mark A. Greere9c4b4b2006-11-08 17:50:44 -0700284 if [ -n "$dts" ]; then
285 rm $dtb
286 fi
Paul Mackerras2bf11812006-09-27 22:47:03 +1000287fi
288
289if [ "$platform" != "miboot" ]; then
Tony Breeds9b09c6d2008-06-24 14:20:29 +1000290 if [ -n "$link_address" ] ; then
291 text_start="-Ttext $link_address --defsym _start=$link_address"
292 fi
293 ${CROSS}ld -m elf32ppc -T $lds $text_start -o "$ofile" \
David Gibsoncd197ff2007-03-05 14:24:52 +1100294 $platformo $tmp $object/wrapper.a
Paul Mackerras2bf11812006-09-27 22:47:03 +1000295 rm $tmp
296fi
297
David Gibsona6afacb2007-05-01 10:20:20 +1000298# Some platforms need the zImage's entry point and base address
299base=0x`${CROSS}nm "$ofile" | grep ' _start$' | cut -d' ' -f1`
300entry=`${CROSS}objdump -f "$ofile" | grep '^start address ' | cut -d' ' -f3`
301
Scott Wood11c146c2007-09-14 14:58:25 -0500302if [ -n "$binary" ]; then
303 mv "$ofile" "$ofile".elf
Scott Woodaeb45522007-10-25 02:56:28 +1000304 ${CROSS}objcopy -O binary "$ofile".elf "$ofile"
Scott Wood11c146c2007-09-14 14:58:25 -0500305fi
306
Paul Mackerras2bf11812006-09-27 22:47:03 +1000307# post-processing needed for some platforms
308case "$platform" in
Paul Mackerras5663a122008-10-31 22:27:17 +1100309pseries|chrp)
310 $objbin/addnote "$ofile"
Paul Mackerras0dcd4402008-10-20 17:42:42 +0000311 ;;
Milton Miller627aa942007-05-31 01:29:01 +1000312coff)
David Gibsoncd197ff2007-03-05 14:24:52 +1100313 ${CROSS}objcopy -O aixcoff-rs6000 --set-start "$entry" "$ofile"
David Woodhouse5c539ee2007-12-03 13:52:05 +1100314 $objbin/hack-coff "$ofile"
Paul Mackerras2bf11812006-09-27 22:47:03 +1000315 ;;
Scott Wood0fdd7172007-04-17 09:25:50 +1000316cuboot*)
Scott Woodaeb45522007-10-25 02:56:28 +1000317 gzip -f -9 "$ofile"
Scott Wood0fdd7172007-04-17 09:25:50 +1000318 mkimage -A ppc -O linux -T kernel -C gzip -a "$base" -e "$entry" \
Scott Woodaeb45522007-10-25 02:56:28 +1000319 $uboot_version -d "$ofile".gz "$ofile"
Scott Wood0fdd7172007-04-17 09:25:50 +1000320 ;;
David Gibsonf6dfc802007-05-08 14:10:01 +1000321treeboot*)
322 mv "$ofile" "$ofile.elf"
David Woodhouse5c539ee2007-12-03 13:52:05 +1100323 $objbin/mktree "$ofile.elf" "$ofile" "$base" "$entry"
David Gibsonf6dfc802007-05-08 14:10:01 +1000324 if [ -z "$cacheit" ]; then
325 rm -f "$ofile.elf"
326 fi
327 exit 0
328 ;;
Geoff Levandbafdb642007-07-04 09:07:18 +1000329ps3)
Geoff Levand5761eaa2008-03-28 07:41:45 +1100330 # The ps3's loader supports loading a gzipped binary image from flash
331 # rom to ram addr zero. The loader then enters the system reset
332 # vector at addr 0x100. A bootwrapper overlay is used to arrange for
333 # a binary image of the kernel to be at addr zero, and yet have a
334 # suitable bootwrapper entry at 0x100. To construct the final rom
335 # image 512 bytes from offset 0x100 is copied to the bootwrapper
336 # place holder at symbol __system_reset_kernel. The 512 bytes of the
337 # bootwrapper entry code at symbol __system_reset_overlay is then
338 # copied to offset 0x100. At runtime the bootwrapper program copies
339 # the data at __system_reset_kernel back to addr 0x100.
Geoff Levandbafdb642007-07-04 09:07:18 +1000340
Scott Woodaeb45522007-10-25 02:56:28 +1000341 system_reset_overlay=0x`${CROSS}nm "$ofile" \
Geoff Levandbafdb642007-07-04 09:07:18 +1000342 | grep ' __system_reset_overlay$' \
343 | cut -d' ' -f1`
344 system_reset_overlay=`printf "%d" $system_reset_overlay`
Scott Woodaeb45522007-10-25 02:56:28 +1000345 system_reset_kernel=0x`${CROSS}nm "$ofile" \
Geoff Levandbafdb642007-07-04 09:07:18 +1000346 | grep ' __system_reset_kernel$' \
347 | cut -d' ' -f1`
348 system_reset_kernel=`printf "%d" $system_reset_kernel`
349 overlay_dest="256"
Geoff Levand5761eaa2008-03-28 07:41:45 +1100350 overlay_size="512"
Geoff Levandbafdb642007-07-04 09:07:18 +1000351
Scott Woodaeb45522007-10-25 02:56:28 +1000352 ${CROSS}objcopy -O binary "$ofile" "$ofile.bin"
353
Grant Likelyd4740372007-10-23 14:27:36 +1000354 dd if="$ofile.bin" of="$ofile.bin" conv=notrunc \
355 skip=$overlay_dest seek=$system_reset_kernel \
356 count=$overlay_size bs=1
Geoff Levandbafdb642007-07-04 09:07:18 +1000357
Grant Likelyd4740372007-10-23 14:27:36 +1000358 dd if="$ofile.bin" of="$ofile.bin" conv=notrunc \
359 skip=$system_reset_overlay seek=$overlay_dest \
360 count=$overlay_size bs=1
Geoff Levandbafdb642007-07-04 09:07:18 +1000361
David Woodhouse928b9692007-12-03 13:48:03 +1100362 odir="$(dirname "$ofile.bin")"
363 rm -f "$odir/otheros.bld"
364 gzip --force -9 --stdout "$ofile.bin" > "$odir/otheros.bld"
Geoff Levandbafdb642007-07-04 09:07:18 +1000365 ;;
Paul Mackerras2bf11812006-09-27 22:47:03 +1000366esac