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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 |
2bf11819 PM |
42 | |
43 | # cross-compilation prefix | |
44 | CROSS= | |
45 | ||
46 | # directory for object and other files used by this script | |
47 | object=arch/powerpc/boot | |
5c539ee3 | 48 | objbin=$object |
2bf11819 PM |
49 | |
50 | # directory for working files | |
51 | tmpdir=. | |
52 | ||
53 | usage() { | |
54 | echo 'Usage: wrapper [-o output] [-p platform] [-i initrd]' >&2 | |
55 | echo ' [-d devtree] [-s tree.dts] [-c] [-C cross-prefix]' >&2 | |
a9903811 | 56 | echo ' [-D datadir] [-W workingdir] [--no-gzip] [vmlinux]' >&2 |
2bf11819 PM |
57 | exit 1 |
58 | } | |
59 | ||
60 | while [ "$#" -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" | |
5c539ee3 | 99 | objbin="$1" |
2bf11819 PM |
100 | ;; |
101 | -W) | |
102 | shift | |
103 | [ "$#" -gt 0 ] || usage | |
104 | tmpdir="$1" | |
105 | ;; | |
a9903811 SW |
106 | --no-gzip) |
107 | gzip= | |
108 | ;; | |
2bf11819 PM |
109 | -?) |
110 | usage | |
111 | ;; | |
112 | *) | |
113 | [ -z "$kernel" ] || usage | |
114 | kernel="$1" | |
115 | ;; | |
116 | esac | |
117 | shift | |
118 | done | |
119 | ||
120 | if [ -n "$dts" ]; then | |
701172d1 DW |
121 | if [ ! -r "$dts" -a -r "$object/dts/$dts" ]; then |
122 | dts="$object/dts/$dts" | |
123 | fi | |
2bf11819 PM |
124 | if [ -z "$dtb" ]; then |
125 | dtb="$platform.dtb" | |
126 | fi | |
e2dc87a1 | 127 | $object/dtc -O dtb -o "$dtb" -b 0 "$dts" |
2bf11819 PM |
128 | fi |
129 | ||
130 | if [ -z "$kernel" ]; then | |
131 | kernel=vmlinux | |
132 | fi | |
133 | ||
134 | platformo=$object/"$platform".o | |
135 | lds=$object/zImage.lds | |
136 | ext=strip | |
137 | objflags=-S | |
138 | tmp=$tmpdir/zImage.$$.o | |
139 | ksection=.kernel:vmlinux.strip | |
140 | isection=.kernel:initrd | |
9b09c6d9 | 141 | link_address='0x400000' |
2bf11819 PM |
142 | |
143 | case "$platform" in | |
9b09c6d9 TB |
144 | pseries) |
145 | platformo=$object/of.o | |
146 | link_address='0x4000000' | |
147 | ;; | |
148 | pmac|chrp) | |
2bf11819 PM |
149 | platformo=$object/of.o |
150 | ;; | |
627aa944 | 151 | coff) |
2bf11819 PM |
152 | platformo=$object/of.o |
153 | lds=$object/zImage.coff.lds | |
9b09c6d9 | 154 | link_address='0x500000' |
2bf11819 PM |
155 | ;; |
156 | miboot|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 | ;; | |
0fdd717e | 164 | cuboot*) |
11c146cc | 165 | binary=y |
0fdd717e | 166 | gzip= |
25431333 GL |
167 | case "$platform" in |
168 | *-mpc885ads|*-adder875*|*-ep88xc) | |
169 | 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 | ;; | |
59d13f9d | 180 | *-mpc83*|*-asp834x*) |
25431333 GL |
181 | platformo=$object/cuboot-83xx.o |
182 | ;; | |
ff880112 | 183 | *-tqm8541|*-mpc8560*|*-tqm8560|*-tqm8555|*-ksi8560*) |
25431333 GL |
184 | platformo=$object/cuboot-85xx-cpm2.o |
185 | ;; | |
6dd1b64a | 186 | *-mpc85*|*-tqm85*|*-sbc85*) |
25431333 GL |
187 | platformo=$object/cuboot-85xx.o |
188 | ;; | |
189 | esac | |
0fdd717e | 190 | ;; |
bafdb645 GL |
191 | ps3) |
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 | |
9b09c6d9 | 199 | link_address='' |
bafdb645 | 200 | ;; |
a55387e5 | 201 | ep88xc|ep405|ep8248e) |
11c146cc SW |
202 | platformo="$object/fixed-head.o $object/$platform.o" |
203 | binary=y | |
204 | ;; | |
a55387e5 SW |
205 | adder875-redboot) |
206 | platformo="$object/fixed-head.o $object/redboot-8xx.o" | |
207 | binary=y | |
208 | ;; | |
d2477b5c | 209 | simpleboot-virtex405-*) |
d58577d8 JL |
210 | platformo="$object/virtex405-head.o $object/simpleboot.o $object/virtex.o" |
211 | binary=y | |
212 | ;; | |
213 | simpleboot-virtex440-*) | |
214 | platformo="$object/simpleboot.o $object/virtex.o" | |
d2477b5c GL |
215 | binary=y |
216 | ;; | |
1d46e379 GL |
217 | simpleboot-*) |
218 | platformo="$object/simpleboot.o" | |
219 | binary=y | |
220 | ;; | |
59d13f9d BD |
221 | asp834x-redboot) |
222 | platformo="$object/fixed-head.o $object/redboot-83xx.o" | |
223 | binary=y | |
224 | ;; | |
2bf11819 PM |
225 | esac |
226 | ||
227 | vmz="$tmpdir/`basename \"$kernel\"`.$ext" | |
1383a34f | 228 | if [ -z "$cacheit" -o ! -f "$vmz$gzip" -o "$vmz$gzip" -ot "$kernel" ]; then |
2bf11819 | 229 | ${CROSS}objcopy $objflags "$kernel" "$vmz.$$" |
a9903811 SW |
230 | |
231 | if [ -n "$gzip" ]; then | |
232 | gzip -f -9 "$vmz.$$" | |
233 | fi | |
234 | ||
2bf11819 | 235 | if [ -n "$cacheit" ]; then |
a9903811 | 236 | mv -f "$vmz.$$$gzip" "$vmz$gzip" |
2bf11819 PM |
237 | else |
238 | vmz="$vmz.$$" | |
239 | fi | |
240 | fi | |
241 | ||
a9903811 SW |
242 | vmz="$vmz$gzip" |
243 | ||
a6afacb6 DG |
244 | # Extract kernel version information, some platforms want to include |
245 | # it in the image header | |
246 | version=`${CROSS}strings "$kernel" | grep '^Linux version [-0-9.]' | \ | |
247 | cut -d' ' -f3` | |
248 | if [ -n "$version" ]; then | |
249 | uboot_version="-n Linux-$version" | |
250 | fi | |
0fdd717e | 251 | |
b18796d3 KG |
252 | # physical offset of kernel image |
253 | membase=`${CROSS}objdump -p "$kernel" | grep -m 1 LOAD | awk '{print $7}'` | |
254 | ||
0fdd717e SW |
255 | case "$platform" in |
256 | uboot) | |
257 | rm -f "$ofile" | |
b18796d3 | 258 | mkimage -A ppc -O linux -T kernel -C gzip -a $membase -e $membase \ |
a6afacb6 | 259 | $uboot_version -d "$vmz" "$ofile" |
2bf11819 | 260 | if [ -z "$cacheit" ]; then |
a9903811 | 261 | rm -f "$vmz" |
2bf11819 PM |
262 | fi |
263 | exit 0 | |
264 | ;; | |
265 | esac | |
266 | ||
267 | addsec() { | |
268 | ${CROSS}objcopy $4 $1 \ | |
269 | --add-section=$3="$2" \ | |
270 | --set-section-flags=$3=contents,alloc,load,readonly,data | |
271 | } | |
272 | ||
a9903811 | 273 | addsec $tmp "$vmz" $ksection $object/empty.o |
2bf11819 | 274 | if [ -z "$cacheit" ]; then |
a9903811 | 275 | rm -f "$vmz" |
2bf11819 PM |
276 | fi |
277 | ||
278 | if [ -n "$initrd" ]; then | |
c888554b | 279 | addsec $tmp "$initrd" $isection |
2bf11819 PM |
280 | fi |
281 | ||
282 | if [ -n "$dtb" ]; then | |
c888554b | 283 | addsec $tmp "$dtb" .kernel:dtb |
e9c4b4bd MG |
284 | if [ -n "$dts" ]; then |
285 | rm $dtb | |
286 | fi | |
2bf11819 PM |
287 | fi |
288 | ||
289 | if [ "$platform" != "miboot" ]; then | |
9b09c6d9 TB |
290 | 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" \ | |
cd197ffc | 294 | $platformo $tmp $object/wrapper.a |
2bf11819 PM |
295 | rm $tmp |
296 | fi | |
297 | ||
a6afacb6 DG |
298 | # Some platforms need the zImage's entry point and base address |
299 | base=0x`${CROSS}nm "$ofile" | grep ' _start$' | cut -d' ' -f1` | |
300 | entry=`${CROSS}objdump -f "$ofile" | grep '^start address ' | cut -d' ' -f3` | |
301 | ||
11c146cc SW |
302 | if [ -n "$binary" ]; then |
303 | mv "$ofile" "$ofile".elf | |
aeb4552f | 304 | ${CROSS}objcopy -O binary "$ofile".elf "$ofile" |
11c146cc SW |
305 | fi |
306 | ||
2bf11819 PM |
307 | # post-processing needed for some platforms |
308 | case "$platform" in | |
309 | pseries|chrp) | |
5c539ee3 | 310 | $objbin/addnote "$ofile" |
2bf11819 | 311 | ;; |
627aa944 | 312 | coff) |
cd197ffc | 313 | ${CROSS}objcopy -O aixcoff-rs6000 --set-start "$entry" "$ofile" |
5c539ee3 | 314 | $objbin/hack-coff "$ofile" |
2bf11819 | 315 | ;; |
0fdd717e | 316 | cuboot*) |
aeb4552f | 317 | gzip -f -9 "$ofile" |
0fdd717e | 318 | mkimage -A ppc -O linux -T kernel -C gzip -a "$base" -e "$entry" \ |
aeb4552f | 319 | $uboot_version -d "$ofile".gz "$ofile" |
0fdd717e | 320 | ;; |
f6dfc805 DG |
321 | treeboot*) |
322 | mv "$ofile" "$ofile.elf" | |
5c539ee3 | 323 | $objbin/mktree "$ofile.elf" "$ofile" "$base" "$entry" |
f6dfc805 DG |
324 | if [ -z "$cacheit" ]; then |
325 | rm -f "$ofile.elf" | |
326 | fi | |
327 | exit 0 | |
328 | ;; | |
bafdb645 | 329 | ps3) |
5761eaa3 GL |
330 | # The ps3's loader supports loading a gzipped binary image from flash |
331 | # rom to ram addr zero. The loader then enters the system reset | |
332 | # vector at addr 0x100. A bootwrapper overlay is used to arrange for | |
333 | # a binary image of the kernel to be at addr zero, and yet have a | |
334 | # suitable bootwrapper entry at 0x100. To construct the final rom | |
335 | # image 512 bytes from offset 0x100 is copied to the bootwrapper | |
336 | # place holder at symbol __system_reset_kernel. The 512 bytes of the | |
337 | # bootwrapper entry code at symbol __system_reset_overlay is then | |
338 | # copied to offset 0x100. At runtime the bootwrapper program copies | |
339 | # the data at __system_reset_kernel back to addr 0x100. | |
bafdb645 | 340 | |
aeb4552f | 341 | system_reset_overlay=0x`${CROSS}nm "$ofile" \ |
bafdb645 GL |
342 | | grep ' __system_reset_overlay$' \ |
343 | | cut -d' ' -f1` | |
344 | system_reset_overlay=`printf "%d" $system_reset_overlay` | |
aeb4552f | 345 | system_reset_kernel=0x`${CROSS}nm "$ofile" \ |
bafdb645 GL |
346 | | grep ' __system_reset_kernel$' \ |
347 | | cut -d' ' -f1` | |
348 | system_reset_kernel=`printf "%d" $system_reset_kernel` | |
349 | overlay_dest="256" | |
5761eaa3 | 350 | overlay_size="512" |
bafdb645 | 351 | |
aeb4552f SW |
352 | ${CROSS}objcopy -O binary "$ofile" "$ofile.bin" |
353 | ||
d4740373 GL |
354 | dd if="$ofile.bin" of="$ofile.bin" conv=notrunc \ |
355 | skip=$overlay_dest seek=$system_reset_kernel \ | |
356 | count=$overlay_size bs=1 | |
bafdb645 | 357 | |
d4740373 GL |
358 | dd if="$ofile.bin" of="$ofile.bin" conv=notrunc \ |
359 | skip=$system_reset_overlay seek=$overlay_dest \ | |
360 | count=$overlay_size bs=1 | |
bafdb645 | 361 | |
928b9695 DW |
362 | odir="$(dirname "$ofile.bin")" |
363 | rm -f "$odir/otheros.bld" | |
364 | gzip --force -9 --stdout "$ofile.bin" > "$odir/otheros.bld" | |
bafdb645 | 365 | ;; |
2bf11819 | 366 | esac |