Commit | Line | Data |
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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' |
dfbc2d75 | 147 | make_space=y |
2bf11819 PM |
148 | |
149 | case "$platform" in | |
9b09c6d9 | 150 | pseries) |
0c9fa291 | 151 | platformo="$object/of.o $object/epapr.o" |
9b09c6d9 TB |
152 | link_address='0x4000000' |
153 | ;; | |
58706ef9 | 154 | maple) |
0c9fa291 | 155 | platformo="$object/of.o $object/epapr.o" |
58706ef9 CM |
156 | link_address='0x400000' |
157 | ;; | |
9b09c6d9 | 158 | pmac|chrp) |
0c9fa291 | 159 | platformo="$object/of.o $object/epapr.o" |
2bf11819 | 160 | ;; |
627aa944 | 161 | coff) |
0c9fa291 | 162 | platformo="$object/crt0.o $object/of.o $object/epapr.o" |
2bf11819 | 163 | lds=$object/zImage.coff.lds |
9b09c6d9 | 164 | link_address='0x500000' |
6975a783 | 165 | pie= |
2bf11819 | 166 | ;; |
11eab297 | 167 | miboot|uboot*) |
2bf11819 PM |
168 | # miboot and U-boot want just the bare bits, not an ELF binary |
169 | ext=bin | |
170 | objflags="-O binary" | |
171 | tmp="$ofile" | |
172 | ksection=image | |
173 | isection=initrd | |
174 | ;; | |
0fdd717e | 175 | cuboot*) |
11c146cc | 176 | binary=y |
0fdd717e | 177 | gzip= |
25431333 | 178 | case "$platform" in |
8dd217b2 | 179 | *-mpc866ads|*-mpc885ads|*-adder875*|*-ep88xc) |
25431333 GL |
180 | platformo=$object/cuboot-8xx.o |
181 | ;; | |
182 | *5200*|*-motionpro) | |
183 | platformo=$object/cuboot-52xx.o | |
184 | ;; | |
185 | *-pq2fads|*-ep8248e|*-mpc8272*|*-storcenter) | |
186 | platformo=$object/cuboot-pq2.o | |
187 | ;; | |
188 | *-mpc824*) | |
189 | platformo=$object/cuboot-824x.o | |
190 | ;; | |
59d13f9d | 191 | *-mpc83*|*-asp834x*) |
25431333 GL |
192 | platformo=$object/cuboot-83xx.o |
193 | ;; | |
ff880112 | 194 | *-tqm8541|*-mpc8560*|*-tqm8560|*-tqm8555|*-ksi8560*) |
25431333 GL |
195 | platformo=$object/cuboot-85xx-cpm2.o |
196 | ;; | |
6dd1b64a | 197 | *-mpc85*|*-tqm85*|*-sbc85*) |
25431333 GL |
198 | platformo=$object/cuboot-85xx.o |
199 | ;; | |
8f23735d GP |
200 | *-amigaone) |
201 | link_address='0x800000' | |
202 | ;; | |
25431333 | 203 | esac |
0fdd717e | 204 | ;; |
bafdb645 GL |
205 | ps3) |
206 | platformo="$object/ps3-head.o $object/ps3-hvcall.o $object/ps3.o" | |
207 | lds=$object/zImage.ps3.lds | |
208 | gzip= | |
209 | ext=bin | |
210 | objflags="-O binary --set-section-flags=.bss=contents,alloc,load,data" | |
211 | ksection=.kernel:vmlinux.bin | |
212 | isection=.kernel:initrd | |
9b09c6d9 | 213 | link_address='' |
dfbc2d75 | 214 | make_space=n |
6975a783 | 215 | pie= |
bafdb645 | 216 | ;; |
a55387e5 | 217 | ep88xc|ep405|ep8248e) |
11c146cc SW |
218 | platformo="$object/fixed-head.o $object/$platform.o" |
219 | binary=y | |
220 | ;; | |
a55387e5 SW |
221 | adder875-redboot) |
222 | platformo="$object/fixed-head.o $object/redboot-8xx.o" | |
223 | binary=y | |
224 | ;; | |
d2477b5c | 225 | simpleboot-virtex405-*) |
d58577d8 JL |
226 | platformo="$object/virtex405-head.o $object/simpleboot.o $object/virtex.o" |
227 | binary=y | |
228 | ;; | |
229 | simpleboot-virtex440-*) | |
a7e1cf0c | 230 | platformo="$object/fixed-head.o $object/simpleboot.o $object/virtex.o" |
d2477b5c GL |
231 | binary=y |
232 | ;; | |
1d46e379 | 233 | simpleboot-*) |
a7e1cf0c | 234 | platformo="$object/fixed-head.o $object/simpleboot.o" |
1d46e379 GL |
235 | binary=y |
236 | ;; | |
59d13f9d BD |
237 | asp834x-redboot) |
238 | platformo="$object/fixed-head.o $object/redboot-83xx.o" | |
239 | binary=y | |
240 | ;; | |
24760823 NC |
241 | xpedite52*) |
242 | link_address='0x1400000' | |
243 | platformo=$object/cuboot-85xx.o | |
244 | ;; | |
6cdd2417 | 245 | gamecube|wii) |
b68a24bc AH |
246 | link_address='0x600000' |
247 | platformo="$object/$platform-head.o $object/$platform.o" | |
248 | ;; | |
228d5505 TB |
249 | treeboot-currituck) |
250 | link_address='0x1000000' | |
251 | ;; | |
b4e8c8dd TS |
252 | treeboot-iss4xx-mpic) |
253 | platformo="$object/treeboot-iss4xx.o" | |
254 | ;; | |
6c5b59b9 | 255 | epapr) |
0c9fa291 | 256 | platformo="$object/epapr.o $object/epapr-wrapper.o" |
6c5b59b9 DG |
257 | link_address='0x20000000' |
258 | pie=-pie | |
259 | ;; | |
2bf11819 PM |
260 | esac |
261 | ||
262 | vmz="$tmpdir/`basename \"$kernel\"`.$ext" | |
1383a34f | 263 | if [ -z "$cacheit" -o ! -f "$vmz$gzip" -o "$vmz$gzip" -ot "$kernel" ]; then |
2bf11819 | 264 | ${CROSS}objcopy $objflags "$kernel" "$vmz.$$" |
a9903811 | 265 | |
c55aef0e SP |
266 | strip_size=$(stat -c %s $vmz.$$) |
267 | ||
a9903811 | 268 | if [ -n "$gzip" ]; then |
c4f56af0 | 269 | gzip -n -f -9 "$vmz.$$" |
a9903811 SW |
270 | fi |
271 | ||
2bf11819 | 272 | if [ -n "$cacheit" ]; then |
a9903811 | 273 | mv -f "$vmz.$$$gzip" "$vmz$gzip" |
2bf11819 PM |
274 | else |
275 | vmz="$vmz.$$" | |
276 | fi | |
c55aef0e SP |
277 | else |
278 | # Calculate the vmlinux.strip size | |
279 | ${CROSS}objcopy $objflags "$kernel" "$vmz.$$" | |
280 | strip_size=$(stat -c %s $vmz.$$) | |
281 | rm -f $vmz.$$ | |
282 | fi | |
283 | ||
dfbc2d75 SR |
284 | if [ "$make_space" = "y" ]; then |
285 | # Round the size to next higher MB limit | |
286 | round_size=$(((strip_size + 0xfffff) & 0xfff00000)) | |
c55aef0e | 287 | |
dfbc2d75 SR |
288 | round_size=0x$(printf "%x" $round_size) |
289 | link_addr=$(printf "%d" $link_address) | |
c55aef0e | 290 | |
dfbc2d75 SR |
291 | if [ $link_addr -lt $strip_size ]; then |
292 | echo "INFO: Uncompressed kernel (size 0x$(printf "%x\n" $strip_size))" \ | |
293 | "overlaps the address of the wrapper($link_address)" | |
294 | echo "INFO: Fixing the link_address of wrapper to ($round_size)" | |
295 | link_address=$round_size | |
296 | fi | |
2bf11819 PM |
297 | fi |
298 | ||
a9903811 SW |
299 | vmz="$vmz$gzip" |
300 | ||
a6afacb6 DG |
301 | # Extract kernel version information, some platforms want to include |
302 | # it in the image header | |
303 | version=`${CROSS}strings "$kernel" | grep '^Linux version [-0-9.]' | \ | |
304 | cut -d' ' -f3` | |
305 | if [ -n "$version" ]; then | |
306 | uboot_version="-n Linux-$version" | |
307 | fi | |
0fdd717e | 308 | |
b18796d3 KG |
309 | # physical offset of kernel image |
310 | membase=`${CROSS}objdump -p "$kernel" | grep -m 1 LOAD | awk '{print $7}'` | |
311 | ||
0fdd717e SW |
312 | case "$platform" in |
313 | uboot) | |
314 | rm -f "$ofile" | |
3f884bf5 | 315 | ${MKIMAGE} -A ppc -O linux -T kernel -C gzip -a $membase -e $membase \ |
a6afacb6 | 316 | $uboot_version -d "$vmz" "$ofile" |
2bf11819 | 317 | if [ -z "$cacheit" ]; then |
a9903811 | 318 | rm -f "$vmz" |
2bf11819 PM |
319 | fi |
320 | exit 0 | |
321 | ;; | |
11eab297 BH |
322 | uboot-obs600) |
323 | rm -f "$ofile" | |
324 | # obs600 wants a multi image with an initrd, so we need to put a fake | |
325 | # one in even when building a "normal" image. | |
326 | if [ -n "$initrd" ]; then | |
327 | real_rd="$initrd" | |
328 | else | |
329 | real_rd=`mktemp` | |
330 | echo "\0" >>"$real_rd" | |
331 | fi | |
332 | ${MKIMAGE} -A ppc -O linux -T multi -C gzip -a $membase -e $membase \ | |
333 | $uboot_version -d "$vmz":"$real_rd":"$dtb" "$ofile" | |
334 | if [ -z "$initrd" ]; then | |
335 | rm -f "$real_rd" | |
336 | fi | |
337 | if [ -z "$cacheit" ]; then | |
338 | rm -f "$vmz" | |
339 | fi | |
340 | exit 0 | |
341 | ;; | |
2bf11819 PM |
342 | esac |
343 | ||
344 | addsec() { | |
345 | ${CROSS}objcopy $4 $1 \ | |
346 | --add-section=$3="$2" \ | |
347 | --set-section-flags=$3=contents,alloc,load,readonly,data | |
348 | } | |
349 | ||
a9903811 | 350 | addsec $tmp "$vmz" $ksection $object/empty.o |
2bf11819 | 351 | if [ -z "$cacheit" ]; then |
a9903811 | 352 | rm -f "$vmz" |
2bf11819 PM |
353 | fi |
354 | ||
355 | if [ -n "$initrd" ]; then | |
c888554b | 356 | addsec $tmp "$initrd" $isection |
2bf11819 PM |
357 | fi |
358 | ||
359 | if [ -n "$dtb" ]; then | |
c888554b | 360 | addsec $tmp "$dtb" .kernel:dtb |
e9c4b4bd MG |
361 | if [ -n "$dts" ]; then |
362 | rm $dtb | |
363 | fi | |
2bf11819 PM |
364 | fi |
365 | ||
366 | if [ "$platform" != "miboot" ]; then | |
9b09c6d9 | 367 | if [ -n "$link_address" ] ; then |
6975a783 | 368 | text_start="-Ttext $link_address" |
9b09c6d9 | 369 | fi |
6975a783 | 370 | ${CROSS}ld -m elf32ppc -T $lds $text_start $pie -o "$ofile" \ |
cd197ffc | 371 | $platformo $tmp $object/wrapper.a |
2bf11819 PM |
372 | rm $tmp |
373 | fi | |
374 | ||
a6afacb6 DG |
375 | # Some platforms need the zImage's entry point and base address |
376 | base=0x`${CROSS}nm "$ofile" | grep ' _start$' | cut -d' ' -f1` | |
377 | entry=`${CROSS}objdump -f "$ofile" | grep '^start address ' | cut -d' ' -f3` | |
378 | ||
11c146cc SW |
379 | if [ -n "$binary" ]; then |
380 | mv "$ofile" "$ofile".elf | |
aeb4552f | 381 | ${CROSS}objcopy -O binary "$ofile".elf "$ofile" |
11c146cc SW |
382 | fi |
383 | ||
2bf11819 PM |
384 | # post-processing needed for some platforms |
385 | case "$platform" in | |
58706ef9 | 386 | pseries|chrp|maple) |
5663a123 | 387 | $objbin/addnote "$ofile" |
0dcd4401 | 388 | ;; |
627aa944 | 389 | coff) |
cd197ffc | 390 | ${CROSS}objcopy -O aixcoff-rs6000 --set-start "$entry" "$ofile" |
5c539ee3 | 391 | $objbin/hack-coff "$ofile" |
2bf11819 | 392 | ;; |
0fdd717e | 393 | cuboot*) |
c4f56af0 | 394 | gzip -n -f -9 "$ofile" |
3f884bf5 | 395 | ${MKIMAGE} -A ppc -O linux -T kernel -C gzip -a "$base" -e "$entry" \ |
aeb4552f | 396 | $uboot_version -d "$ofile".gz "$ofile" |
0fdd717e | 397 | ;; |
f6dfc805 DG |
398 | treeboot*) |
399 | mv "$ofile" "$ofile.elf" | |
5c539ee3 | 400 | $objbin/mktree "$ofile.elf" "$ofile" "$base" "$entry" |
f6dfc805 DG |
401 | if [ -z "$cacheit" ]; then |
402 | rm -f "$ofile.elf" | |
403 | fi | |
404 | exit 0 | |
405 | ;; | |
bafdb645 | 406 | ps3) |
5761eaa3 GL |
407 | # The ps3's loader supports loading a gzipped binary image from flash |
408 | # rom to ram addr zero. The loader then enters the system reset | |
409 | # vector at addr 0x100. A bootwrapper overlay is used to arrange for | |
410 | # a binary image of the kernel to be at addr zero, and yet have a | |
411 | # suitable bootwrapper entry at 0x100. To construct the final rom | |
412 | # image 512 bytes from offset 0x100 is copied to the bootwrapper | |
413 | # place holder at symbol __system_reset_kernel. The 512 bytes of the | |
414 | # bootwrapper entry code at symbol __system_reset_overlay is then | |
415 | # copied to offset 0x100. At runtime the bootwrapper program copies | |
416 | # the data at __system_reset_kernel back to addr 0x100. | |
bafdb645 | 417 | |
aeb4552f | 418 | system_reset_overlay=0x`${CROSS}nm "$ofile" \ |
bafdb645 GL |
419 | | grep ' __system_reset_overlay$' \ |
420 | | cut -d' ' -f1` | |
421 | system_reset_overlay=`printf "%d" $system_reset_overlay` | |
aeb4552f | 422 | system_reset_kernel=0x`${CROSS}nm "$ofile" \ |
bafdb645 GL |
423 | | grep ' __system_reset_kernel$' \ |
424 | | cut -d' ' -f1` | |
425 | system_reset_kernel=`printf "%d" $system_reset_kernel` | |
426 | overlay_dest="256" | |
5761eaa3 | 427 | overlay_size="512" |
bafdb645 | 428 | |
aeb4552f SW |
429 | ${CROSS}objcopy -O binary "$ofile" "$ofile.bin" |
430 | ||
d4740373 GL |
431 | dd if="$ofile.bin" of="$ofile.bin" conv=notrunc \ |
432 | skip=$overlay_dest seek=$system_reset_kernel \ | |
433 | count=$overlay_size bs=1 | |
bafdb645 | 434 | |
d4740373 GL |
435 | dd if="$ofile.bin" of="$ofile.bin" conv=notrunc \ |
436 | skip=$system_reset_overlay seek=$overlay_dest \ | |
437 | count=$overlay_size bs=1 | |
bafdb645 | 438 | |
928b9695 DW |
439 | odir="$(dirname "$ofile.bin")" |
440 | rm -f "$odir/otheros.bld" | |
c4f56af0 | 441 | gzip -n --force -9 --stdout "$ofile.bin" > "$odir/otheros.bld" |
bafdb645 | 442 | ;; |
2bf11819 | 443 | esac |