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2bf11819 PM |
1 | #!/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 $kernel.strip.gz (use if present & newer, else make) | |
18 | # -C prefix specify command prefix for cross-building tools | |
19 | # (strip, objcopy, ld) | |
20 | # -D dir specify directory containing data files used by script | |
21 | # (default ./arch/powerpc/boot) | |
22 | # -W dir specify working directory for temporary files (default .) | |
23 | ||
d4740373 GL |
24 | # Stop execution if any command fails |
25 | set -e | |
26 | ||
7f66c1fd GL |
27 | # Allow for verbose output |
28 | if [ "$V" = 1 ]; then | |
29 | set -x | |
30 | fi | |
31 | ||
2bf11819 PM |
32 | # defaults |
33 | kernel= | |
34 | ofile=zImage | |
35 | platform=of | |
36 | initrd= | |
37 | dtb= | |
38 | dts= | |
39 | cacheit= | |
11c146cc | 40 | binary= |
a9903811 | 41 | gzip=.gz |
6975a783 | 42 | pie= |
2bf11819 PM |
43 | |
44 | # cross-compilation prefix | |
45 | CROSS= | |
46 | ||
3f884bf5 PT |
47 | # mkimage wrapper script |
48 | MKIMAGE=$srctree/scripts/mkuboot.sh | |
49 | ||
2bf11819 PM |
50 | # directory for object and other files used by this script |
51 | object=arch/powerpc/boot | |
5c539ee3 | 52 | objbin=$object |
c79b2973 | 53 | dtc=scripts/dtc/dtc |
2bf11819 PM |
54 | |
55 | # directory for working files | |
56 | tmpdir=. | |
57 | ||
58 | usage() { | |
59 | echo 'Usage: wrapper [-o output] [-p platform] [-i initrd]' >&2 | |
60 | echo ' [-d devtree] [-s tree.dts] [-c] [-C cross-prefix]' >&2 | |
a9903811 | 61 | echo ' [-D datadir] [-W workingdir] [--no-gzip] [vmlinux]' >&2 |
2bf11819 PM |
62 | exit 1 |
63 | } | |
64 | ||
65 | while [ "$#" -gt 0 ]; do | |
66 | case "$1" in | |
67 | -o) | |
68 | shift | |
69 | [ "$#" -gt 0 ] || usage | |
70 | ofile="$1" | |
71 | ;; | |
72 | -p) | |
73 | shift | |
74 | [ "$#" -gt 0 ] || usage | |
75 | platform="$1" | |
76 | ;; | |
77 | -i) | |
78 | shift | |
79 | [ "$#" -gt 0 ] || usage | |
80 | initrd="$1" | |
81 | ;; | |
82 | -d) | |
83 | shift | |
84 | [ "$#" -gt 0 ] || usage | |
85 | dtb="$1" | |
86 | ;; | |
87 | -s) | |
88 | shift | |
89 | [ "$#" -gt 0 ] || usage | |
90 | dts="$1" | |
91 | ;; | |
92 | -c) | |
93 | cacheit=y | |
94 | ;; | |
95 | -C) | |
96 | shift | |
97 | [ "$#" -gt 0 ] || usage | |
98 | CROSS="$1" | |
99 | ;; | |
100 | -D) | |
101 | shift | |
102 | [ "$#" -gt 0 ] || usage | |
103 | object="$1" | |
5c539ee3 | 104 | objbin="$1" |
2bf11819 PM |
105 | ;; |
106 | -W) | |
107 | shift | |
108 | [ "$#" -gt 0 ] || usage | |
109 | tmpdir="$1" | |
110 | ;; | |
a9903811 SW |
111 | --no-gzip) |
112 | gzip= | |
113 | ;; | |
2bf11819 PM |
114 | -?) |
115 | usage | |
116 | ;; | |
117 | *) | |
118 | [ -z "$kernel" ] || usage | |
119 | kernel="$1" | |
120 | ;; | |
121 | esac | |
122 | shift | |
123 | done | |
124 | ||
125 | if [ -n "$dts" ]; then | |
701172d1 DW |
126 | if [ ! -r "$dts" -a -r "$object/dts/$dts" ]; then |
127 | dts="$object/dts/$dts" | |
128 | fi | |
2bf11819 PM |
129 | if [ -z "$dtb" ]; then |
130 | dtb="$platform.dtb" | |
131 | fi | |
c79b2973 | 132 | $dtc -O dtb -o "$dtb" -b 0 "$dts" |
2bf11819 PM |
133 | fi |
134 | ||
135 | if [ -z "$kernel" ]; then | |
136 | kernel=vmlinux | |
137 | fi | |
138 | ||
139 | platformo=$object/"$platform".o | |
140 | lds=$object/zImage.lds | |
141 | ext=strip | |
142 | objflags=-S | |
143 | tmp=$tmpdir/zImage.$$.o | |
144 | ksection=.kernel:vmlinux.strip | |
145 | isection=.kernel:initrd | |
9b09c6d9 | 146 | link_address='0x400000' |
2bf11819 PM |
147 | |
148 | case "$platform" in | |
9b09c6d9 TB |
149 | pseries) |
150 | platformo=$object/of.o | |
151 | link_address='0x4000000' | |
152 | ;; | |
58706ef9 CM |
153 | maple) |
154 | platformo=$object/of.o | |
155 | link_address='0x400000' | |
156 | ;; | |
9b09c6d9 | 157 | pmac|chrp) |
2bf11819 PM |
158 | platformo=$object/of.o |
159 | ;; | |
627aa944 | 160 | coff) |
6975a783 | 161 | platformo="$object/crt0.o $object/of.o" |
2bf11819 | 162 | lds=$object/zImage.coff.lds |
9b09c6d9 | 163 | link_address='0x500000' |
6975a783 | 164 | pie= |
2bf11819 PM |
165 | ;; |
166 | miboot|uboot) | |
167 | # miboot and U-boot want just the bare bits, not an ELF binary | |
168 | ext=bin | |
169 | objflags="-O binary" | |
170 | tmp="$ofile" | |
171 | ksection=image | |
172 | isection=initrd | |
173 | ;; | |
0fdd717e | 174 | cuboot*) |
11c146cc | 175 | binary=y |
0fdd717e | 176 | gzip= |
25431333 | 177 | case "$platform" in |
8dd217b2 | 178 | *-mpc866ads|*-mpc885ads|*-adder875*|*-ep88xc) |
25431333 GL |
179 | platformo=$object/cuboot-8xx.o |
180 | ;; | |
181 | *5200*|*-motionpro) | |
182 | platformo=$object/cuboot-52xx.o | |
183 | ;; | |
184 | *-pq2fads|*-ep8248e|*-mpc8272*|*-storcenter) | |
185 | platformo=$object/cuboot-pq2.o | |
186 | ;; | |
187 | *-mpc824*) | |
188 | platformo=$object/cuboot-824x.o | |
189 | ;; | |
59d13f9d | 190 | *-mpc83*|*-asp834x*) |
25431333 GL |
191 | platformo=$object/cuboot-83xx.o |
192 | ;; | |
ff880112 | 193 | *-tqm8541|*-mpc8560*|*-tqm8560|*-tqm8555|*-ksi8560*) |
25431333 GL |
194 | platformo=$object/cuboot-85xx-cpm2.o |
195 | ;; | |
6dd1b64a | 196 | *-mpc85*|*-tqm85*|*-sbc85*) |
25431333 GL |
197 | platformo=$object/cuboot-85xx.o |
198 | ;; | |
8f23735d GP |
199 | *-amigaone) |
200 | link_address='0x800000' | |
201 | ;; | |
25431333 | 202 | esac |
0fdd717e | 203 | ;; |
bafdb645 GL |
204 | ps3) |
205 | platformo="$object/ps3-head.o $object/ps3-hvcall.o $object/ps3.o" | |
206 | lds=$object/zImage.ps3.lds | |
207 | gzip= | |
208 | ext=bin | |
209 | objflags="-O binary --set-section-flags=.bss=contents,alloc,load,data" | |
210 | ksection=.kernel:vmlinux.bin | |
211 | isection=.kernel:initrd | |
9b09c6d9 | 212 | link_address='' |
6975a783 | 213 | pie= |
bafdb645 | 214 | ;; |
a55387e5 | 215 | ep88xc|ep405|ep8248e) |
11c146cc SW |
216 | platformo="$object/fixed-head.o $object/$platform.o" |
217 | binary=y | |
218 | ;; | |
a55387e5 SW |
219 | adder875-redboot) |
220 | platformo="$object/fixed-head.o $object/redboot-8xx.o" | |
221 | binary=y | |
222 | ;; | |
d2477b5c | 223 | simpleboot-virtex405-*) |
d58577d8 JL |
224 | platformo="$object/virtex405-head.o $object/simpleboot.o $object/virtex.o" |
225 | binary=y | |
226 | ;; | |
227 | simpleboot-virtex440-*) | |
a7e1cf0c | 228 | platformo="$object/fixed-head.o $object/simpleboot.o $object/virtex.o" |
d2477b5c GL |
229 | binary=y |
230 | ;; | |
1d46e379 | 231 | simpleboot-*) |
a7e1cf0c | 232 | platformo="$object/fixed-head.o $object/simpleboot.o" |
1d46e379 GL |
233 | binary=y |
234 | ;; | |
59d13f9d BD |
235 | asp834x-redboot) |
236 | platformo="$object/fixed-head.o $object/redboot-83xx.o" | |
237 | binary=y | |
238 | ;; | |
24760823 NC |
239 | xpedite52*) |
240 | link_address='0x1400000' | |
241 | platformo=$object/cuboot-85xx.o | |
242 | ;; | |
6cdd2417 | 243 | gamecube|wii) |
b68a24bc AH |
244 | link_address='0x600000' |
245 | platformo="$object/$platform-head.o $object/$platform.o" | |
246 | ;; | |
b4e8c8dd TS |
247 | treeboot-iss4xx-mpic) |
248 | platformo="$object/treeboot-iss4xx.o" | |
249 | ;; | |
6c5b59b9 DG |
250 | epapr) |
251 | link_address='0x20000000' | |
252 | pie=-pie | |
253 | ;; | |
2bf11819 PM |
254 | esac |
255 | ||
256 | vmz="$tmpdir/`basename \"$kernel\"`.$ext" | |
1383a34f | 257 | if [ -z "$cacheit" -o ! -f "$vmz$gzip" -o "$vmz$gzip" -ot "$kernel" ]; then |
2bf11819 | 258 | ${CROSS}objcopy $objflags "$kernel" "$vmz.$$" |
a9903811 SW |
259 | |
260 | if [ -n "$gzip" ]; then | |
c4f56af0 | 261 | gzip -n -f -9 "$vmz.$$" |
a9903811 SW |
262 | fi |
263 | ||
2bf11819 | 264 | if [ -n "$cacheit" ]; then |
a9903811 | 265 | mv -f "$vmz.$$$gzip" "$vmz$gzip" |
2bf11819 PM |
266 | else |
267 | vmz="$vmz.$$" | |
268 | fi | |
269 | fi | |
270 | ||
a9903811 SW |
271 | vmz="$vmz$gzip" |
272 | ||
a6afacb6 DG |
273 | # Extract kernel version information, some platforms want to include |
274 | # it in the image header | |
275 | version=`${CROSS}strings "$kernel" | grep '^Linux version [-0-9.]' | \ | |
276 | cut -d' ' -f3` | |
277 | if [ -n "$version" ]; then | |
278 | uboot_version="-n Linux-$version" | |
279 | fi | |
0fdd717e | 280 | |
b18796d3 KG |
281 | # physical offset of kernel image |
282 | membase=`${CROSS}objdump -p "$kernel" | grep -m 1 LOAD | awk '{print $7}'` | |
283 | ||
0fdd717e SW |
284 | case "$platform" in |
285 | uboot) | |
286 | rm -f "$ofile" | |
3f884bf5 | 287 | ${MKIMAGE} -A ppc -O linux -T kernel -C gzip -a $membase -e $membase \ |
a6afacb6 | 288 | $uboot_version -d "$vmz" "$ofile" |
2bf11819 | 289 | if [ -z "$cacheit" ]; then |
a9903811 | 290 | rm -f "$vmz" |
2bf11819 PM |
291 | fi |
292 | exit 0 | |
293 | ;; | |
294 | esac | |
295 | ||
296 | addsec() { | |
297 | ${CROSS}objcopy $4 $1 \ | |
298 | --add-section=$3="$2" \ | |
299 | --set-section-flags=$3=contents,alloc,load,readonly,data | |
300 | } | |
301 | ||
a9903811 | 302 | addsec $tmp "$vmz" $ksection $object/empty.o |
2bf11819 | 303 | if [ -z "$cacheit" ]; then |
a9903811 | 304 | rm -f "$vmz" |
2bf11819 PM |
305 | fi |
306 | ||
307 | if [ -n "$initrd" ]; then | |
c888554b | 308 | addsec $tmp "$initrd" $isection |
2bf11819 PM |
309 | fi |
310 | ||
311 | if [ -n "$dtb" ]; then | |
c888554b | 312 | addsec $tmp "$dtb" .kernel:dtb |
e9c4b4bd MG |
313 | if [ -n "$dts" ]; then |
314 | rm $dtb | |
315 | fi | |
2bf11819 PM |
316 | fi |
317 | ||
318 | if [ "$platform" != "miboot" ]; then | |
9b09c6d9 | 319 | if [ -n "$link_address" ] ; then |
6975a783 | 320 | text_start="-Ttext $link_address" |
9b09c6d9 | 321 | fi |
6975a783 | 322 | ${CROSS}ld -m elf32ppc -T $lds $text_start $pie -o "$ofile" \ |
cd197ffc | 323 | $platformo $tmp $object/wrapper.a |
2bf11819 PM |
324 | rm $tmp |
325 | fi | |
326 | ||
a6afacb6 DG |
327 | # Some platforms need the zImage's entry point and base address |
328 | base=0x`${CROSS}nm "$ofile" | grep ' _start$' | cut -d' ' -f1` | |
329 | entry=`${CROSS}objdump -f "$ofile" | grep '^start address ' | cut -d' ' -f3` | |
330 | ||
11c146cc SW |
331 | if [ -n "$binary" ]; then |
332 | mv "$ofile" "$ofile".elf | |
aeb4552f | 333 | ${CROSS}objcopy -O binary "$ofile".elf "$ofile" |
11c146cc SW |
334 | fi |
335 | ||
2bf11819 PM |
336 | # post-processing needed for some platforms |
337 | case "$platform" in | |
58706ef9 | 338 | pseries|chrp|maple) |
5663a123 | 339 | $objbin/addnote "$ofile" |
0dcd4401 | 340 | ;; |
627aa944 | 341 | coff) |
cd197ffc | 342 | ${CROSS}objcopy -O aixcoff-rs6000 --set-start "$entry" "$ofile" |
5c539ee3 | 343 | $objbin/hack-coff "$ofile" |
2bf11819 | 344 | ;; |
0fdd717e | 345 | cuboot*) |
c4f56af0 | 346 | gzip -n -f -9 "$ofile" |
3f884bf5 | 347 | ${MKIMAGE} -A ppc -O linux -T kernel -C gzip -a "$base" -e "$entry" \ |
aeb4552f | 348 | $uboot_version -d "$ofile".gz "$ofile" |
0fdd717e | 349 | ;; |
f6dfc805 DG |
350 | treeboot*) |
351 | mv "$ofile" "$ofile.elf" | |
5c539ee3 | 352 | $objbin/mktree "$ofile.elf" "$ofile" "$base" "$entry" |
f6dfc805 DG |
353 | if [ -z "$cacheit" ]; then |
354 | rm -f "$ofile.elf" | |
355 | fi | |
356 | exit 0 | |
357 | ;; | |
bafdb645 | 358 | ps3) |
5761eaa3 GL |
359 | # The ps3's loader supports loading a gzipped binary image from flash |
360 | # rom to ram addr zero. The loader then enters the system reset | |
361 | # vector at addr 0x100. A bootwrapper overlay is used to arrange for | |
362 | # a binary image of the kernel to be at addr zero, and yet have a | |
363 | # suitable bootwrapper entry at 0x100. To construct the final rom | |
364 | # image 512 bytes from offset 0x100 is copied to the bootwrapper | |
365 | # place holder at symbol __system_reset_kernel. The 512 bytes of the | |
366 | # bootwrapper entry code at symbol __system_reset_overlay is then | |
367 | # copied to offset 0x100. At runtime the bootwrapper program copies | |
368 | # the data at __system_reset_kernel back to addr 0x100. | |
bafdb645 | 369 | |
aeb4552f | 370 | system_reset_overlay=0x`${CROSS}nm "$ofile" \ |
bafdb645 GL |
371 | | grep ' __system_reset_overlay$' \ |
372 | | cut -d' ' -f1` | |
373 | system_reset_overlay=`printf "%d" $system_reset_overlay` | |
aeb4552f | 374 | system_reset_kernel=0x`${CROSS}nm "$ofile" \ |
bafdb645 GL |
375 | | grep ' __system_reset_kernel$' \ |
376 | | cut -d' ' -f1` | |
377 | system_reset_kernel=`printf "%d" $system_reset_kernel` | |
378 | overlay_dest="256" | |
5761eaa3 | 379 | overlay_size="512" |
bafdb645 | 380 | |
aeb4552f SW |
381 | ${CROSS}objcopy -O binary "$ofile" "$ofile.bin" |
382 | ||
d4740373 GL |
383 | dd if="$ofile.bin" of="$ofile.bin" conv=notrunc \ |
384 | skip=$overlay_dest seek=$system_reset_kernel \ | |
385 | count=$overlay_size bs=1 | |
bafdb645 | 386 | |
d4740373 GL |
387 | dd if="$ofile.bin" of="$ofile.bin" conv=notrunc \ |
388 | skip=$system_reset_overlay seek=$overlay_dest \ | |
389 | count=$overlay_size bs=1 | |
bafdb645 | 390 | |
928b9695 DW |
391 | odir="$(dirname "$ofile.bin")" |
392 | rm -f "$odir/otheros.bld" | |
c4f56af0 | 393 | gzip -n --force -9 --stdout "$ofile.bin" > "$odir/otheros.bld" |
bafdb645 | 394 | ;; |
2bf11819 | 395 | esac |