Commit | Line | Data |
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252b5132 RH |
1 | /* 32-bit ELF support for ARM new abi option. |
2 | Copyright 1999 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of BFD, the Binary File Descriptor library. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
19 | ||
20 | #include "elf/arm.h" | |
21 | #include "bfd.h" | |
22 | #include "sysdep.h" | |
23 | #include "libbfd.h" | |
24 | #include "elf-bfd.h" | |
25 | ||
26 | #ifndef NUM_ELEM | |
27 | #define NUM_ELEM(a) (sizeof (a) / (sizeof (a)[0])) | |
28 | #endif | |
29 | ||
30 | #define USE_REL | |
31 | ||
32 | #define TARGET_LITTLE_SYM bfd_elf32_littlearm_vec | |
33 | #define TARGET_LITTLE_NAME "elf32-littlearm" | |
34 | #define TARGET_BIG_SYM bfd_elf32_bigarm_vec | |
35 | #define TARGET_BIG_NAME "elf32-bigarm" | |
36 | ||
37 | #define elf_info_to_howto 0 | |
38 | #define elf_info_to_howto_rel elf32_arm_info_to_howto_rel | |
39 | ||
40 | ||
41 | static reloc_howto_type * elf32_arm_reloc_type_lookup | |
42 | PARAMS ((bfd * abfd, bfd_reloc_code_real_type code)); | |
43 | ||
44 | static reloc_howto_type elf32_arm_howto_table[] = | |
45 | { | |
46 | /* No relocation */ | |
47 | HOWTO (R_ARM_NONE, /* type */ | |
48 | 0, /* rightshift */ | |
49 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
50 | 0, /* bitsize */ | |
51 | false, /* pc_relative */ | |
52 | 0, /* bitpos */ | |
53 | complain_overflow_dont,/* complain_on_overflow */ | |
54 | bfd_elf_generic_reloc, /* special_function */ | |
55 | "R_ARM_NONE", /* name */ | |
56 | false, /* partial_inplace */ | |
57 | 0, /* src_mask */ | |
58 | 0, /* dst_mask */ | |
59 | false), /* pcrel_offset */ | |
60 | ||
61 | HOWTO (R_ARM_PC24, /* type */ | |
62 | 2, /* rightshift */ | |
63 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
64 | 24, /* bitsize */ | |
65 | true, /* pc_relative */ | |
66 | 0, /* bitpos */ | |
67 | complain_overflow_signed,/* complain_on_overflow */ | |
68 | bfd_elf_generic_reloc, /* special_function */ | |
69 | "R_ARM_PC24", /* name */ | |
70 | false, /* partial_inplace */ | |
71 | 0x00ffffff, /* src_mask */ | |
72 | 0x00ffffff, /* dst_mask */ | |
73 | true), /* pcrel_offset */ | |
74 | ||
75 | /* 32 bit absolute */ | |
76 | HOWTO (R_ARM_ABS32, /* type */ | |
77 | 0, /* rightshift */ | |
78 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
79 | 32, /* bitsize */ | |
80 | false, /* pc_relative */ | |
81 | 0, /* bitpos */ | |
82 | complain_overflow_bitfield,/* complain_on_overflow */ | |
83 | bfd_elf_generic_reloc, /* special_function */ | |
84 | "R_ARM_ABS32", /* name */ | |
85 | false, /* partial_inplace */ | |
86 | 0xffffffff, /* src_mask */ | |
87 | 0xffffffff, /* dst_mask */ | |
88 | false), /* pcrel_offset */ | |
89 | ||
90 | /* standard 32bit pc-relative reloc */ | |
91 | HOWTO (R_ARM_REL32, /* type */ | |
92 | 0, /* rightshift */ | |
93 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
94 | 32, /* bitsize */ | |
95 | true, /* pc_relative */ | |
96 | 0, /* bitpos */ | |
97 | complain_overflow_bitfield,/* complain_on_overflow */ | |
98 | bfd_elf_generic_reloc, /* special_function */ | |
99 | "R_ARM_REL32", /* name */ | |
100 | false, /* partial_inplace */ | |
101 | 0xffffffff, /* src_mask */ | |
102 | 0xffffffff, /* dst_mask */ | |
103 | true), /* pcrel_offset */ | |
104 | ||
105 | /* 8 bit absolute */ | |
106 | HOWTO (R_ARM_PC13, /* type */ | |
107 | 0, /* rightshift */ | |
108 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
109 | 8, /* bitsize */ | |
110 | false, /* pc_relative */ | |
111 | 0, /* bitpos */ | |
112 | complain_overflow_bitfield,/* complain_on_overflow */ | |
113 | bfd_elf_generic_reloc, /* special_function */ | |
114 | "R_ARM_PC13", /* name */ | |
115 | false, /* partial_inplace */ | |
116 | 0x000000ff, /* src_mask */ | |
117 | 0x000000ff, /* dst_mask */ | |
118 | false), /* pcrel_offset */ | |
119 | ||
120 | /* 16 bit absolute */ | |
121 | HOWTO (R_ARM_ABS16, /* type */ | |
122 | 0, /* rightshift */ | |
123 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
124 | 16, /* bitsize */ | |
125 | false, /* pc_relative */ | |
126 | 0, /* bitpos */ | |
127 | complain_overflow_bitfield,/* complain_on_overflow */ | |
128 | bfd_elf_generic_reloc, /* special_function */ | |
129 | "R_ARM_ABS16", /* name */ | |
130 | false, /* partial_inplace */ | |
131 | 0, /* src_mask */ | |
132 | 0, /* dst_mask */ | |
133 | false), /* pcrel_offset */ | |
134 | ||
135 | /* 12 bit absolute */ | |
136 | HOWTO (R_ARM_ABS12, /* type */ | |
137 | 0, /* rightshift */ | |
138 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
139 | 12, /* bitsize */ | |
140 | false, /* pc_relative */ | |
141 | 0, /* bitpos */ | |
142 | complain_overflow_bitfield,/* complain_on_overflow */ | |
143 | bfd_elf_generic_reloc, /* special_function */ | |
144 | "R_ARM_ABS12", /* name */ | |
145 | false, /* partial_inplace */ | |
146 | 0x000008ff, /* src_mask */ | |
147 | 0x000008ff, /* dst_mask */ | |
148 | false), /* pcrel_offset */ | |
149 | ||
150 | HOWTO (R_ARM_THM_ABS5, /* type */ | |
151 | 6, /* rightshift */ | |
152 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
153 | 5, /* bitsize */ | |
154 | false, /* pc_relative */ | |
155 | 0, /* bitpos */ | |
156 | complain_overflow_bitfield,/* complain_on_overflow */ | |
157 | bfd_elf_generic_reloc, /* special_function */ | |
158 | "R_ARM_THM_ABS5", /* name */ | |
159 | false, /* partial_inplace */ | |
160 | 0x000007e0, /* src_mask */ | |
161 | 0x000007e0, /* dst_mask */ | |
162 | false), /* pcrel_offset */ | |
163 | ||
164 | /* 8 bit absolute */ | |
165 | HOWTO (R_ARM_ABS8, /* type */ | |
166 | 0, /* rightshift */ | |
167 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
168 | 8, /* bitsize */ | |
169 | false, /* pc_relative */ | |
170 | 0, /* bitpos */ | |
171 | complain_overflow_bitfield,/* complain_on_overflow */ | |
172 | bfd_elf_generic_reloc, /* special_function */ | |
173 | "R_ARM_ABS8", /* name */ | |
174 | false, /* partial_inplace */ | |
175 | 0x000000ff, /* src_mask */ | |
176 | 0x000000ff, /* dst_mask */ | |
177 | false), /* pcrel_offset */ | |
178 | ||
179 | HOWTO (R_ARM_SBREL32, /* type */ | |
180 | 0, /* rightshift */ | |
181 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
182 | 0, /* bitsize */ | |
183 | false, /* pc_relative */ | |
184 | 0, /* bitpos */ | |
185 | complain_overflow_dont,/* complain_on_overflow */ | |
186 | bfd_elf_generic_reloc, /* special_function */ | |
187 | "R_ARM_SBREL32", /* name */ | |
188 | false, /* partial_inplace */ | |
189 | 0, /* src_mask */ | |
190 | 0, /* dst_mask */ | |
191 | false), /* pcrel_offset */ | |
192 | ||
193 | HOWTO (R_ARM_THM_PC22, /* type */ | |
194 | 1, /* rightshift */ | |
195 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
196 | 23, /* bitsize */ | |
197 | true, /* pc_relative */ | |
198 | 0, /* bitpos */ | |
199 | complain_overflow_signed,/* complain_on_overflow */ | |
200 | bfd_elf_generic_reloc, /* special_function */ | |
201 | "R_ARM_THM_PC22", /* name */ | |
202 | false, /* partial_inplace */ | |
203 | 0x07ff07ff, /* src_mask */ | |
204 | 0x07ff07ff, /* dst_mask */ | |
205 | true), /* pcrel_offset */ | |
206 | ||
207 | HOWTO (R_ARM_THM_PC8, /* type */ | |
208 | 1, /* rightshift */ | |
209 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
210 | 8, /* bitsize */ | |
211 | true, /* pc_relative */ | |
212 | 0, /* bitpos */ | |
213 | complain_overflow_signed,/* complain_on_overflow */ | |
214 | bfd_elf_generic_reloc, /* special_function */ | |
215 | "R_ARM_THM_PC8", /* name */ | |
216 | false, /* partial_inplace */ | |
217 | 0x000000ff, /* src_mask */ | |
218 | 0x000000ff, /* dst_mask */ | |
219 | true), /* pcrel_offset */ | |
220 | ||
221 | HOWTO (R_ARM_AMP_VCALL9, /* type */ | |
222 | 1, /* rightshift */ | |
223 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
224 | 8, /* bitsize */ | |
225 | true, /* pc_relative */ | |
226 | 0, /* bitpos */ | |
227 | complain_overflow_signed,/* complain_on_overflow */ | |
228 | bfd_elf_generic_reloc, /* special_function */ | |
229 | "R_ARM_AMP_VCALL9", /* name */ | |
230 | false, /* partial_inplace */ | |
231 | 0x000000ff, /* src_mask */ | |
232 | 0x000000ff, /* dst_mask */ | |
233 | true), /* pcrel_offset */ | |
234 | ||
235 | HOWTO (R_ARM_SWI24, /* type */ | |
236 | 0, /* rightshift */ | |
237 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
238 | 0, /* bitsize */ | |
239 | false, /* pc_relative */ | |
240 | 0, /* bitpos */ | |
241 | complain_overflow_signed,/* complain_on_overflow */ | |
242 | bfd_elf_generic_reloc, /* special_function */ | |
243 | "R_ARM_SWI24", /* name */ | |
244 | false, /* partial_inplace */ | |
245 | 0x00000000, /* src_mask */ | |
246 | 0x00000000, /* dst_mask */ | |
247 | false), /* pcrel_offset */ | |
248 | ||
249 | HOWTO (R_ARM_THM_SWI8, /* type */ | |
250 | 0, /* rightshift */ | |
251 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
252 | 0, /* bitsize */ | |
253 | false, /* pc_relative */ | |
254 | 0, /* bitpos */ | |
255 | complain_overflow_signed,/* complain_on_overflow */ | |
256 | bfd_elf_generic_reloc, /* special_function */ | |
257 | "R_ARM_SWI8", /* name */ | |
258 | false, /* partial_inplace */ | |
259 | 0x00000000, /* src_mask */ | |
260 | 0x00000000, /* dst_mask */ | |
261 | false), /* pcrel_offset */ | |
262 | ||
263 | /* These next two relocs are defined, but I do not know what they do. */ | |
264 | ||
265 | HOWTO (R_ARM_XPC25, /* type */ | |
266 | 0, /* rightshift */ | |
267 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
268 | 0, /* bitsize */ | |
269 | false, /* pc_relative */ | |
270 | 0, /* bitpos */ | |
271 | complain_overflow_signed,/* complain_on_overflow */ | |
272 | bfd_elf_generic_reloc, /* special_function */ | |
273 | "R_ARM_XPC25", /* name */ | |
274 | false, /* partial_inplace */ | |
275 | 0x00000000, /* src_mask */ | |
276 | 0x00000000, /* dst_mask */ | |
277 | false), /* pcrel_offset */ | |
278 | ||
279 | HOWTO (R_ARM_THM_XPC22, /* type */ | |
280 | 0, /* rightshift */ | |
281 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
282 | 0, /* bitsize */ | |
283 | false, /* pc_relative */ | |
284 | 0, /* bitpos */ | |
285 | complain_overflow_signed,/* complain_on_overflow */ | |
286 | bfd_elf_generic_reloc, /* special_function */ | |
287 | "R_ARM_THM_XPC22", /* name */ | |
288 | false, /* partial_inplace */ | |
289 | 0x00000000, /* src_mask */ | |
290 | 0x00000000, /* dst_mask */ | |
291 | false), /* pcrel_offset */ | |
292 | ||
293 | /* These next three relocs are not defined, but we need to fill the space. */ | |
294 | ||
295 | HOWTO (R_ARM_NONE, /* type */ | |
296 | 0, /* rightshift */ | |
297 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
298 | 0, /* bitsize */ | |
299 | false, /* pc_relative */ | |
300 | 0, /* bitpos */ | |
301 | complain_overflow_dont,/* complain_on_overflow */ | |
302 | bfd_elf_generic_reloc, /* special_function */ | |
303 | "R_ARM_unknown_17", /* name */ | |
304 | false, /* partial_inplace */ | |
305 | 0, /* src_mask */ | |
306 | 0, /* dst_mask */ | |
307 | false), /* pcrel_offset */ | |
308 | ||
309 | HOWTO (R_ARM_NONE, /* type */ | |
310 | 0, /* rightshift */ | |
311 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
312 | 0, /* bitsize */ | |
313 | false, /* pc_relative */ | |
314 | 0, /* bitpos */ | |
315 | complain_overflow_dont,/* complain_on_overflow */ | |
316 | bfd_elf_generic_reloc, /* special_function */ | |
317 | "R_ARM_unknown_18", /* name */ | |
318 | false, /* partial_inplace */ | |
319 | 0, /* src_mask */ | |
320 | 0, /* dst_mask */ | |
321 | false), /* pcrel_offset */ | |
322 | ||
323 | HOWTO (R_ARM_NONE, /* type */ | |
324 | 0, /* rightshift */ | |
325 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
326 | 0, /* bitsize */ | |
327 | false, /* pc_relative */ | |
328 | 0, /* bitpos */ | |
329 | complain_overflow_dont,/* complain_on_overflow */ | |
330 | bfd_elf_generic_reloc, /* special_function */ | |
331 | "R_ARM_unknown_19", /* name */ | |
332 | false, /* partial_inplace */ | |
333 | 0, /* src_mask */ | |
334 | 0, /* dst_mask */ | |
335 | false), /* pcrel_offset */ | |
336 | ||
337 | /* Relocs used in ARM Linux */ | |
338 | ||
339 | HOWTO (R_ARM_COPY, /* type */ | |
340 | 0, /* rightshift */ | |
341 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
342 | 32, /* bitsize */ | |
343 | false, /* pc_relative */ | |
344 | 0, /* bitpos */ | |
345 | complain_overflow_bitfield,/* complain_on_overflow */ | |
346 | bfd_elf_generic_reloc, /* special_function */ | |
347 | "R_ARM_COPY", /* name */ | |
348 | true, /* partial_inplace */ | |
349 | 0xffffffff, /* src_mask */ | |
350 | 0xffffffff, /* dst_mask */ | |
351 | false), /* pcrel_offset */ | |
352 | ||
353 | HOWTO (R_ARM_GLOB_DAT, /* type */ | |
354 | 0, /* rightshift */ | |
355 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
356 | 32, /* bitsize */ | |
357 | false, /* pc_relative */ | |
358 | 0, /* bitpos */ | |
359 | complain_overflow_bitfield,/* complain_on_overflow */ | |
360 | bfd_elf_generic_reloc, /* special_function */ | |
361 | "R_ARM_GLOB_DAT", /* name */ | |
362 | true, /* partial_inplace */ | |
363 | 0xffffffff, /* src_mask */ | |
364 | 0xffffffff, /* dst_mask */ | |
365 | false), /* pcrel_offset */ | |
366 | ||
367 | HOWTO (R_ARM_JUMP_SLOT, /* type */ | |
368 | 0, /* rightshift */ | |
369 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
370 | 32, /* bitsize */ | |
371 | false, /* pc_relative */ | |
372 | 0, /* bitpos */ | |
373 | complain_overflow_bitfield,/* complain_on_overflow */ | |
374 | bfd_elf_generic_reloc, /* special_function */ | |
375 | "R_ARM_JUMP_SLOT", /* name */ | |
376 | true, /* partial_inplace */ | |
377 | 0xffffffff, /* src_mask */ | |
378 | 0xffffffff, /* dst_mask */ | |
379 | false), /* pcrel_offset */ | |
380 | ||
381 | HOWTO (R_ARM_RELATIVE, /* type */ | |
382 | 0, /* rightshift */ | |
383 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
384 | 32, /* bitsize */ | |
385 | false, /* pc_relative */ | |
386 | 0, /* bitpos */ | |
387 | complain_overflow_bitfield,/* complain_on_overflow */ | |
388 | bfd_elf_generic_reloc, /* special_function */ | |
389 | "R_ARM_RELATIVE", /* name */ | |
390 | true, /* partial_inplace */ | |
391 | 0xffffffff, /* src_mask */ | |
392 | 0xffffffff, /* dst_mask */ | |
393 | false), /* pcrel_offset */ | |
394 | ||
395 | HOWTO (R_ARM_GOTOFF, /* type */ | |
396 | 0, /* rightshift */ | |
397 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
398 | 32, /* bitsize */ | |
399 | false, /* pc_relative */ | |
400 | 0, /* bitpos */ | |
401 | complain_overflow_bitfield,/* complain_on_overflow */ | |
402 | bfd_elf_generic_reloc, /* special_function */ | |
403 | "R_ARM_GOTOFF", /* name */ | |
404 | true, /* partial_inplace */ | |
405 | 0xffffffff, /* src_mask */ | |
406 | 0xffffffff, /* dst_mask */ | |
407 | false), /* pcrel_offset */ | |
408 | ||
409 | HOWTO (R_ARM_GOTPC, /* type */ | |
410 | 0, /* rightshift */ | |
411 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
412 | 32, /* bitsize */ | |
413 | true, /* pc_relative */ | |
414 | 0, /* bitpos */ | |
415 | complain_overflow_bitfield,/* complain_on_overflow */ | |
416 | bfd_elf_generic_reloc, /* special_function */ | |
417 | "R_ARM_GOTPC", /* name */ | |
418 | true, /* partial_inplace */ | |
419 | 0xffffffff, /* src_mask */ | |
420 | 0xffffffff, /* dst_mask */ | |
421 | true), /* pcrel_offset */ | |
422 | ||
423 | HOWTO (R_ARM_GOT32, /* type */ | |
424 | 0, /* rightshift */ | |
425 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
426 | 32, /* bitsize */ | |
427 | false, /* pc_relative */ | |
428 | 0, /* bitpos */ | |
429 | complain_overflow_bitfield,/* complain_on_overflow */ | |
430 | bfd_elf_generic_reloc, /* special_function */ | |
431 | "R_ARM_GOT32", /* name */ | |
432 | true, /* partial_inplace */ | |
433 | 0xffffffff, /* src_mask */ | |
434 | 0xffffffff, /* dst_mask */ | |
435 | false), /* pcrel_offset */ | |
436 | ||
437 | HOWTO (R_ARM_PLT32, /* type */ | |
438 | 2, /* rightshift */ | |
439 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
440 | 26, /* bitsize */ | |
441 | true, /* pc_relative */ | |
442 | 0, /* bitpos */ | |
443 | complain_overflow_bitfield,/* complain_on_overflow */ | |
444 | bfd_elf_generic_reloc, /* special_function */ | |
445 | "R_ARM_PLT32", /* name */ | |
446 | true, /* partial_inplace */ | |
447 | 0x00ffffff, /* src_mask */ | |
448 | 0x00ffffff, /* dst_mask */ | |
449 | true), /* pcrel_offset */ | |
450 | ||
451 | /* End of relocs used in ARM Linux */ | |
452 | ||
453 | HOWTO (R_ARM_RREL32, /* type */ | |
454 | 0, /* rightshift */ | |
455 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
456 | 0, /* bitsize */ | |
457 | false, /* pc_relative */ | |
458 | 0, /* bitpos */ | |
459 | complain_overflow_dont,/* complain_on_overflow */ | |
460 | bfd_elf_generic_reloc, /* special_function */ | |
461 | "R_ARM_RREL32", /* name */ | |
462 | false, /* partial_inplace */ | |
463 | 0, /* src_mask */ | |
464 | 0, /* dst_mask */ | |
465 | false), /* pcrel_offset */ | |
466 | ||
467 | HOWTO (R_ARM_RABS32, /* type */ | |
468 | 0, /* rightshift */ | |
469 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
470 | 0, /* bitsize */ | |
471 | false, /* pc_relative */ | |
472 | 0, /* bitpos */ | |
473 | complain_overflow_dont,/* complain_on_overflow */ | |
474 | bfd_elf_generic_reloc, /* special_function */ | |
475 | "R_ARM_RABS32", /* name */ | |
476 | false, /* partial_inplace */ | |
477 | 0, /* src_mask */ | |
478 | 0, /* dst_mask */ | |
479 | false), /* pcrel_offset */ | |
480 | ||
481 | HOWTO (R_ARM_RPC24, /* type */ | |
482 | 0, /* rightshift */ | |
483 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
484 | 0, /* bitsize */ | |
485 | false, /* pc_relative */ | |
486 | 0, /* bitpos */ | |
487 | complain_overflow_dont,/* complain_on_overflow */ | |
488 | bfd_elf_generic_reloc, /* special_function */ | |
489 | "R_ARM_RPC24", /* name */ | |
490 | false, /* partial_inplace */ | |
491 | 0, /* src_mask */ | |
492 | 0, /* dst_mask */ | |
493 | false), /* pcrel_offset */ | |
494 | ||
495 | HOWTO (R_ARM_RBASE, /* type */ | |
496 | 0, /* rightshift */ | |
497 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
498 | 0, /* bitsize */ | |
499 | false, /* pc_relative */ | |
500 | 0, /* bitpos */ | |
501 | complain_overflow_dont,/* complain_on_overflow */ | |
502 | bfd_elf_generic_reloc, /* special_function */ | |
503 | "R_ARM_RBASE", /* name */ | |
504 | false, /* partial_inplace */ | |
505 | 0, /* src_mask */ | |
506 | 0, /* dst_mask */ | |
507 | false), /* pcrel_offset */ | |
508 | ||
509 | }; | |
510 | ||
511 | /* GNU extension to record C++ vtable hierarchy */ | |
512 | static reloc_howto_type elf32_arm_vtinherit_howto = | |
513 | HOWTO (R_ARM_GNU_VTINHERIT, /* type */ | |
514 | 0, /* rightshift */ | |
515 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
516 | 0, /* bitsize */ | |
517 | false, /* pc_relative */ | |
518 | 0, /* bitpos */ | |
519 | complain_overflow_dont, /* complain_on_overflow */ | |
520 | NULL, /* special_function */ | |
521 | "R_ARM_GNU_VTINHERIT", /* name */ | |
522 | false, /* partial_inplace */ | |
523 | 0, /* src_mask */ | |
524 | 0, /* dst_mask */ | |
525 | false); /* pcrel_offset */ | |
526 | ||
527 | /* GNU extension to record C++ vtable member usage */ | |
528 | static reloc_howto_type elf32_arm_vtentry_howto = | |
529 | HOWTO (R_ARM_GNU_VTENTRY, /* type */ | |
530 | 0, /* rightshift */ | |
531 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
532 | 0, /* bitsize */ | |
533 | false, /* pc_relative */ | |
534 | 0, /* bitpos */ | |
535 | complain_overflow_dont, /* complain_on_overflow */ | |
536 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ | |
537 | "R_ARM_GNU_VTENTRY", /* name */ | |
538 | false, /* partial_inplace */ | |
539 | 0, /* src_mask */ | |
540 | 0, /* dst_mask */ | |
541 | false); /* pcrel_offset */ | |
542 | ||
543 | /* 12 bit pc relative */ | |
544 | static reloc_howto_type elf32_arm_thm_pc11_howto = | |
545 | HOWTO (R_ARM_THM_PC11, /* type */ | |
546 | 1, /* rightshift */ | |
547 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
548 | 11, /* bitsize */ | |
549 | true, /* pc_relative */ | |
550 | 0, /* bitpos */ | |
551 | complain_overflow_signed, /* complain_on_overflow */ | |
552 | bfd_elf_generic_reloc, /* special_function */ | |
553 | "R_ARM_THM_PC11", /* name */ | |
554 | false, /* partial_inplace */ | |
555 | 0x000007ff, /* src_mask */ | |
556 | 0x000007ff, /* dst_mask */ | |
557 | true); /* pcrel_offset */ | |
558 | ||
559 | /* 12 bit pc relative */ | |
560 | static reloc_howto_type elf32_arm_thm_pc9_howto = | |
561 | HOWTO (R_ARM_THM_PC9, /* type */ | |
562 | 1, /* rightshift */ | |
563 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
564 | 8, /* bitsize */ | |
565 | true, /* pc_relative */ | |
566 | 0, /* bitpos */ | |
567 | complain_overflow_signed, /* complain_on_overflow */ | |
568 | bfd_elf_generic_reloc, /* special_function */ | |
569 | "R_ARM_THM_PC9", /* name */ | |
570 | false, /* partial_inplace */ | |
571 | 0x000000ff, /* src_mask */ | |
572 | 0x000000ff, /* dst_mask */ | |
573 | true); /* pcrel_offset */ | |
574 | ||
575 | ||
576 | static void | |
577 | elf32_arm_info_to_howto_rel (abfd, bfd_reloc, elf_reloc) | |
578 | bfd * abfd; | |
579 | arelent * bfd_reloc; | |
580 | Elf32_Internal_Rel * elf_reloc; | |
581 | { | |
582 | unsigned int r_type; | |
583 | ||
584 | r_type = ELF32_R_TYPE (elf_reloc->r_info); | |
585 | ||
586 | switch (r_type) | |
587 | { | |
588 | case R_ARM_GNU_VTINHERIT: | |
589 | bfd_reloc->howto = & elf32_arm_vtinherit_howto; | |
590 | break; | |
591 | ||
592 | case R_ARM_GNU_VTENTRY: | |
593 | bfd_reloc->howto = & elf32_arm_vtentry_howto; | |
594 | break; | |
595 | ||
596 | case R_ARM_THM_PC11: | |
597 | bfd_reloc->howto = & elf32_arm_thm_pc11_howto; | |
598 | break; | |
599 | ||
600 | case R_ARM_THM_PC9: | |
601 | bfd_reloc->howto = & elf32_arm_thm_pc9_howto; | |
602 | break; | |
603 | ||
604 | default: | |
605 | if (r_type >= NUM_ELEM (elf32_arm_howto_table)) | |
606 | bfd_reloc->howto = NULL; | |
607 | else | |
608 | bfd_reloc->howto = & elf32_arm_howto_table[r_type]; | |
609 | break; | |
610 | } | |
611 | } | |
612 | ||
613 | struct elf32_arm_reloc_map | |
614 | { | |
615 | bfd_reloc_code_real_type bfd_reloc_val; | |
616 | unsigned char elf_reloc_val; | |
617 | }; | |
618 | ||
619 | static const struct elf32_arm_reloc_map elf32_arm_reloc_map[] = | |
620 | { | |
621 | {BFD_RELOC_NONE, R_ARM_NONE}, | |
622 | {BFD_RELOC_ARM_PCREL_BRANCH, R_ARM_PC24}, | |
623 | {BFD_RELOC_32, R_ARM_ABS32}, | |
624 | {BFD_RELOC_32_PCREL, R_ARM_REL32}, | |
625 | {BFD_RELOC_8, R_ARM_ABS8}, | |
626 | {BFD_RELOC_16, R_ARM_ABS16}, | |
627 | {BFD_RELOC_ARM_OFFSET_IMM, R_ARM_ABS12}, | |
628 | {BFD_RELOC_ARM_THUMB_OFFSET, R_ARM_THM_ABS5}, | |
629 | {BFD_RELOC_THUMB_PCREL_BRANCH23, R_ARM_THM_PC22}, | |
630 | {BFD_RELOC_ARM_COPY, R_ARM_COPY}, | |
631 | {BFD_RELOC_ARM_GLOB_DAT, R_ARM_GLOB_DAT}, | |
632 | {BFD_RELOC_ARM_JUMP_SLOT, R_ARM_JUMP_SLOT}, | |
633 | {BFD_RELOC_ARM_RELATIVE, R_ARM_RELATIVE}, | |
634 | {BFD_RELOC_ARM_GOTOFF, R_ARM_GOTOFF}, | |
635 | {BFD_RELOC_ARM_GOTPC, R_ARM_GOTPC}, | |
636 | {BFD_RELOC_ARM_GOT32, R_ARM_GOT32}, | |
637 | {BFD_RELOC_ARM_PLT32, R_ARM_PLT32} | |
638 | }; | |
639 | ||
640 | static reloc_howto_type * | |
641 | elf32_arm_reloc_type_lookup (abfd, code) | |
642 | bfd *abfd; | |
643 | bfd_reloc_code_real_type code; | |
644 | { | |
645 | unsigned int i; | |
646 | ||
647 | switch (code) | |
648 | { | |
649 | case BFD_RELOC_VTABLE_INHERIT: | |
650 | return & elf32_arm_vtinherit_howto; | |
651 | ||
652 | case BFD_RELOC_VTABLE_ENTRY: | |
653 | return & elf32_arm_vtentry_howto; | |
654 | ||
655 | case BFD_RELOC_THUMB_PCREL_BRANCH12: | |
656 | return & elf32_arm_thm_pc11_howto; | |
657 | ||
658 | case BFD_RELOC_THUMB_PCREL_BRANCH9: | |
659 | return & elf32_arm_thm_pc9_howto; | |
660 | ||
661 | default: | |
662 | for (i = 0; i < NUM_ELEM (elf32_arm_reloc_map); i ++) | |
663 | if (elf32_arm_reloc_map[i].bfd_reloc_val == code) | |
664 | return & elf32_arm_howto_table[elf32_arm_reloc_map[i].elf_reloc_val]; | |
665 | ||
666 | return NULL; | |
667 | } | |
668 | } | |
669 | ||
670 | #include "elf32-arm.h" |