projects / deliverable / binutils-gdb.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
* elf32-i386.c (elf_i386_grok_prstatus): New function.
[deliverable/binutils-gdb.git] / bfd / elfarm-nabi.c
1 /* 32-bit ELF support for ARM new abi option.
2 Copyright 1999, 2000, 2001 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
39
40 #define ARM_ELF_ABI_VERSION 0
41 #define ARM_ELF_OS_ABI_VERSION ELFOSABI_ARM
42
43 static reloc_howto_type * elf32_arm_reloc_type_lookup
44 PARAMS ((bfd * abfd, bfd_reloc_code_real_type code));
45
46 /* Note: code such as elf32_arm_reloc_type_lookup expect to use e.g.
47 R_ARM_PC24 as an index into this, and find the R_ARM_PC24 HOWTO
48 in that slot. */
49
50 static reloc_howto_type elf32_arm_howto_table[] =
51 {
52 /* No relocation */
53 HOWTO (R_ARM_NONE, /* type */
54 0, /* rightshift */
55 0, /* size (0 = byte, 1 = short, 2 = long) */
56 0, /* bitsize */
57 false, /* pc_relative */
58 0, /* bitpos */
59 complain_overflow_dont,/* complain_on_overflow */
60 bfd_elf_generic_reloc, /* special_function */
61 "R_ARM_NONE", /* name */
62 false, /* partial_inplace */
63 0, /* src_mask */
64 0, /* dst_mask */
65 false), /* pcrel_offset */
66
67 HOWTO (R_ARM_PC24, /* type */
68 2, /* rightshift */
69 2, /* size (0 = byte, 1 = short, 2 = long) */
70 24, /* bitsize */
71 true, /* pc_relative */
72 0, /* bitpos */
73 complain_overflow_signed,/* complain_on_overflow */
74 bfd_elf_generic_reloc, /* special_function */
75 "R_ARM_PC24", /* name */
76 false, /* partial_inplace */
77 0x00ffffff, /* src_mask */
78 0x00ffffff, /* dst_mask */
79 true), /* pcrel_offset */
80
81 /* 32 bit absolute */
82 HOWTO (R_ARM_ABS32, /* type */
83 0, /* rightshift */
84 2, /* size (0 = byte, 1 = short, 2 = long) */
85 32, /* bitsize */
86 false, /* pc_relative */
87 0, /* bitpos */
88 complain_overflow_bitfield,/* complain_on_overflow */
89 bfd_elf_generic_reloc, /* special_function */
90 "R_ARM_ABS32", /* name */
91 false, /* partial_inplace */
92 0xffffffff, /* src_mask */
93 0xffffffff, /* dst_mask */
94 false), /* pcrel_offset */
95
96 /* standard 32bit pc-relative reloc */
97 HOWTO (R_ARM_REL32, /* type */
98 0, /* rightshift */
99 2, /* size (0 = byte, 1 = short, 2 = long) */
100 32, /* bitsize */
101 true, /* pc_relative */
102 0, /* bitpos */
103 complain_overflow_bitfield,/* complain_on_overflow */
104 bfd_elf_generic_reloc, /* special_function */
105 "R_ARM_REL32", /* name */
106 false, /* partial_inplace */
107 0xffffffff, /* src_mask */
108 0xffffffff, /* dst_mask */
109 true), /* pcrel_offset */
110
111 /* 8 bit absolute */
112 HOWTO (R_ARM_PC13, /* type */
113 0, /* rightshift */
114 0, /* size (0 = byte, 1 = short, 2 = long) */
115 8, /* bitsize */
116 false, /* pc_relative */
117 0, /* bitpos */
118 complain_overflow_bitfield,/* complain_on_overflow */
119 bfd_elf_generic_reloc, /* special_function */
120 "R_ARM_PC13", /* name */
121 false, /* partial_inplace */
122 0x000000ff, /* src_mask */
123 0x000000ff, /* dst_mask */
124 false), /* pcrel_offset */
125
126 /* 16 bit absolute */
127 HOWTO (R_ARM_ABS16, /* type */
128 0, /* rightshift */
129 1, /* size (0 = byte, 1 = short, 2 = long) */
130 16, /* bitsize */
131 false, /* pc_relative */
132 0, /* bitpos */
133 complain_overflow_bitfield,/* complain_on_overflow */
134 bfd_elf_generic_reloc, /* special_function */
135 "R_ARM_ABS16", /* name */
136 false, /* partial_inplace */
137 0, /* src_mask */
138 0, /* dst_mask */
139 false), /* pcrel_offset */
140
141 /* 12 bit absolute */
142 HOWTO (R_ARM_ABS12, /* type */
143 0, /* rightshift */
144 2, /* size (0 = byte, 1 = short, 2 = long) */
145 12, /* bitsize */
146 false, /* pc_relative */
147 0, /* bitpos */
148 complain_overflow_bitfield,/* complain_on_overflow */
149 bfd_elf_generic_reloc, /* special_function */
150 "R_ARM_ABS12", /* name */
151 false, /* partial_inplace */
152 0x000008ff, /* src_mask */
153 0x000008ff, /* dst_mask */
154 false), /* pcrel_offset */
155
156 HOWTO (R_ARM_THM_ABS5, /* type */
157 6, /* rightshift */
158 1, /* size (0 = byte, 1 = short, 2 = long) */
159 5, /* bitsize */
160 false, /* pc_relative */
161 0, /* bitpos */
162 complain_overflow_bitfield,/* complain_on_overflow */
163 bfd_elf_generic_reloc, /* special_function */
164 "R_ARM_THM_ABS5", /* name */
165 false, /* partial_inplace */
166 0x000007e0, /* src_mask */
167 0x000007e0, /* dst_mask */
168 false), /* pcrel_offset */
169
170 /* 8 bit absolute */
171 HOWTO (R_ARM_ABS8, /* type */
172 0, /* rightshift */
173 0, /* size (0 = byte, 1 = short, 2 = long) */
174 8, /* bitsize */
175 false, /* pc_relative */
176 0, /* bitpos */
177 complain_overflow_bitfield,/* complain_on_overflow */
178 bfd_elf_generic_reloc, /* special_function */
179 "R_ARM_ABS8", /* name */
180 false, /* partial_inplace */
181 0x000000ff, /* src_mask */
182 0x000000ff, /* dst_mask */
183 false), /* pcrel_offset */
184
185 HOWTO (R_ARM_SBREL32, /* type */
186 0, /* rightshift */
187 0, /* size (0 = byte, 1 = short, 2 = long) */
188 0, /* bitsize */
189 false, /* pc_relative */
190 0, /* bitpos */
191 complain_overflow_dont,/* complain_on_overflow */
192 bfd_elf_generic_reloc, /* special_function */
193 "R_ARM_SBREL32", /* name */
194 false, /* partial_inplace */
195 0, /* src_mask */
196 0, /* dst_mask */
197 false), /* pcrel_offset */
198
199 HOWTO (R_ARM_THM_PC22, /* type */
200 1, /* rightshift */
201 2, /* size (0 = byte, 1 = short, 2 = long) */
202 23, /* bitsize */
203 true, /* pc_relative */
204 0, /* bitpos */
205 complain_overflow_signed,/* complain_on_overflow */
206 bfd_elf_generic_reloc, /* special_function */
207 "R_ARM_THM_PC22", /* name */
208 false, /* partial_inplace */
209 0x07ff07ff, /* src_mask */
210 0x07ff07ff, /* dst_mask */
211 true), /* pcrel_offset */
212
213 HOWTO (R_ARM_THM_PC8, /* type */
214 1, /* rightshift */
215 1, /* size (0 = byte, 1 = short, 2 = long) */
216 8, /* bitsize */
217 true, /* pc_relative */
218 0, /* bitpos */
219 complain_overflow_signed,/* complain_on_overflow */
220 bfd_elf_generic_reloc, /* special_function */
221 "R_ARM_THM_PC8", /* name */
222 false, /* partial_inplace */
223 0x000000ff, /* src_mask */
224 0x000000ff, /* dst_mask */
225 true), /* pcrel_offset */
226
227 HOWTO (R_ARM_AMP_VCALL9, /* type */
228 1, /* rightshift */
229 1, /* size (0 = byte, 1 = short, 2 = long) */
230 8, /* bitsize */
231 true, /* pc_relative */
232 0, /* bitpos */
233 complain_overflow_signed,/* complain_on_overflow */
234 bfd_elf_generic_reloc, /* special_function */
235 "R_ARM_AMP_VCALL9", /* name */
236 false, /* partial_inplace */
237 0x000000ff, /* src_mask */
238 0x000000ff, /* dst_mask */
239 true), /* pcrel_offset */
240
241 HOWTO (R_ARM_SWI24, /* type */
242 0, /* rightshift */
243 0, /* size (0 = byte, 1 = short, 2 = long) */
244 0, /* bitsize */
245 false, /* pc_relative */
246 0, /* bitpos */
247 complain_overflow_signed,/* complain_on_overflow */
248 bfd_elf_generic_reloc, /* special_function */
249 "R_ARM_SWI24", /* name */
250 false, /* partial_inplace */
251 0x00000000, /* src_mask */
252 0x00000000, /* dst_mask */
253 false), /* pcrel_offset */
254
255 HOWTO (R_ARM_THM_SWI8, /* type */
256 0, /* rightshift */
257 0, /* size (0 = byte, 1 = short, 2 = long) */
258 0, /* bitsize */
259 false, /* pc_relative */
260 0, /* bitpos */
261 complain_overflow_signed,/* complain_on_overflow */
262 bfd_elf_generic_reloc, /* special_function */
263 "R_ARM_SWI8", /* name */
264 false, /* partial_inplace */
265 0x00000000, /* src_mask */
266 0x00000000, /* dst_mask */
267 false), /* pcrel_offset */
268
269 /* BLX instruction for the ARM. */
270 HOWTO (R_ARM_XPC25, /* type */
271 2, /* rightshift */
272 2, /* size (0 = byte, 1 = short, 2 = long) */
273 25, /* bitsize */
274 true, /* pc_relative */
275 0, /* bitpos */
276 complain_overflow_signed,/* complain_on_overflow */
277 bfd_elf_generic_reloc, /* special_function */
278 "R_ARM_XPC25", /* name */
279 false, /* partial_inplace */
280 0x00ffffff, /* src_mask */
281 0x00ffffff, /* dst_mask */
282 true), /* pcrel_offset */
283
284 /* BLX instruction for the Thumb. */
285 HOWTO (R_ARM_THM_XPC22, /* type */
286 2, /* rightshift */
287 2, /* size (0 = byte, 1 = short, 2 = long) */
288 22, /* bitsize */
289 true, /* pc_relative */
290 0, /* bitpos */
291 complain_overflow_signed,/* complain_on_overflow */
292 bfd_elf_generic_reloc, /* special_function */
293 "R_ARM_THM_XPC22", /* name */
294 false, /* partial_inplace */
295 0x07ff07ff, /* src_mask */
296 0x07ff07ff, /* dst_mask */
297 true), /* pcrel_offset */
298
299 /* These next three relocs are not defined, but we need to fill the space. */
300
301 HOWTO (R_ARM_NONE, /* type */
302 0, /* rightshift */
303 0, /* size (0 = byte, 1 = short, 2 = long) */
304 0, /* bitsize */
305 false, /* pc_relative */
306 0, /* bitpos */
307 complain_overflow_dont,/* complain_on_overflow */
308 bfd_elf_generic_reloc, /* special_function */
309 "R_ARM_unknown_17", /* name */
310 false, /* partial_inplace */
311 0, /* src_mask */
312 0, /* dst_mask */
313 false), /* pcrel_offset */
314
315 HOWTO (R_ARM_NONE, /* type */
316 0, /* rightshift */
317 0, /* size (0 = byte, 1 = short, 2 = long) */
318 0, /* bitsize */
319 false, /* pc_relative */
320 0, /* bitpos */
321 complain_overflow_dont,/* complain_on_overflow */
322 bfd_elf_generic_reloc, /* special_function */
323 "R_ARM_unknown_18", /* name */
324 false, /* partial_inplace */
325 0, /* src_mask */
326 0, /* dst_mask */
327 false), /* pcrel_offset */
328
329 HOWTO (R_ARM_NONE, /* type */
330 0, /* rightshift */
331 0, /* size (0 = byte, 1 = short, 2 = long) */
332 0, /* bitsize */
333 false, /* pc_relative */
334 0, /* bitpos */
335 complain_overflow_dont,/* complain_on_overflow */
336 bfd_elf_generic_reloc, /* special_function */
337 "R_ARM_unknown_19", /* name */
338 false, /* partial_inplace */
339 0, /* src_mask */
340 0, /* dst_mask */
341 false), /* pcrel_offset */
342
343 /* Relocs used in ARM Linux */
344
345 HOWTO (R_ARM_COPY, /* type */
346 0, /* rightshift */
347 2, /* size (0 = byte, 1 = short, 2 = long) */
348 32, /* bitsize */
349 false, /* pc_relative */
350 0, /* bitpos */
351 complain_overflow_bitfield,/* complain_on_overflow */
352 bfd_elf_generic_reloc, /* special_function */
353 "R_ARM_COPY", /* name */
354 true, /* partial_inplace */
355 0xffffffff, /* src_mask */
356 0xffffffff, /* dst_mask */
357 false), /* pcrel_offset */
358
359 HOWTO (R_ARM_GLOB_DAT, /* type */
360 0, /* rightshift */
361 2, /* size (0 = byte, 1 = short, 2 = long) */
362 32, /* bitsize */
363 false, /* pc_relative */
364 0, /* bitpos */
365 complain_overflow_bitfield,/* complain_on_overflow */
366 bfd_elf_generic_reloc, /* special_function */
367 "R_ARM_GLOB_DAT", /* name */
368 true, /* partial_inplace */
369 0xffffffff, /* src_mask */
370 0xffffffff, /* dst_mask */
371 false), /* pcrel_offset */
372
373 HOWTO (R_ARM_JUMP_SLOT, /* type */
374 0, /* rightshift */
375 2, /* size (0 = byte, 1 = short, 2 = long) */
376 32, /* bitsize */
377 false, /* pc_relative */
378 0, /* bitpos */
379 complain_overflow_bitfield,/* complain_on_overflow */
380 bfd_elf_generic_reloc, /* special_function */
381 "R_ARM_JUMP_SLOT", /* name */
382 true, /* partial_inplace */
383 0xffffffff, /* src_mask */
384 0xffffffff, /* dst_mask */
385 false), /* pcrel_offset */
386
387 HOWTO (R_ARM_RELATIVE, /* type */
388 0, /* rightshift */
389 2, /* size (0 = byte, 1 = short, 2 = long) */
390 32, /* bitsize */
391 false, /* pc_relative */
392 0, /* bitpos */
393 complain_overflow_bitfield,/* complain_on_overflow */
394 bfd_elf_generic_reloc, /* special_function */
395 "R_ARM_RELATIVE", /* name */
396 true, /* partial_inplace */
397 0xffffffff, /* src_mask */
398 0xffffffff, /* dst_mask */
399 false), /* pcrel_offset */
400
401 HOWTO (R_ARM_GOTOFF, /* type */
402 0, /* rightshift */
403 2, /* size (0 = byte, 1 = short, 2 = long) */
404 32, /* bitsize */
405 false, /* pc_relative */
406 0, /* bitpos */
407 complain_overflow_bitfield,/* complain_on_overflow */
408 bfd_elf_generic_reloc, /* special_function */
409 "R_ARM_GOTOFF", /* name */
410 true, /* partial_inplace */
411 0xffffffff, /* src_mask */
412 0xffffffff, /* dst_mask */
413 false), /* pcrel_offset */
414
415 HOWTO (R_ARM_GOTPC, /* type */
416 0, /* rightshift */
417 2, /* size (0 = byte, 1 = short, 2 = long) */
418 32, /* bitsize */
419 true, /* pc_relative */
420 0, /* bitpos */
421 complain_overflow_bitfield,/* complain_on_overflow */
422 bfd_elf_generic_reloc, /* special_function */
423 "R_ARM_GOTPC", /* name */
424 true, /* partial_inplace */
425 0xffffffff, /* src_mask */
426 0xffffffff, /* dst_mask */
427 true), /* pcrel_offset */
428
429 HOWTO (R_ARM_GOT32, /* type */
430 0, /* rightshift */
431 2, /* size (0 = byte, 1 = short, 2 = long) */
432 32, /* bitsize */
433 false, /* pc_relative */
434 0, /* bitpos */
435 complain_overflow_bitfield,/* complain_on_overflow */
436 bfd_elf_generic_reloc, /* special_function */
437 "R_ARM_GOT32", /* name */
438 true, /* partial_inplace */
439 0xffffffff, /* src_mask */
440 0xffffffff, /* dst_mask */
441 false), /* pcrel_offset */
442
443 HOWTO (R_ARM_PLT32, /* type */
444 2, /* rightshift */
445 2, /* size (0 = byte, 1 = short, 2 = long) */
446 26, /* bitsize */
447 true, /* pc_relative */
448 0, /* bitpos */
449 complain_overflow_bitfield,/* complain_on_overflow */
450 bfd_elf_generic_reloc, /* special_function */
451 "R_ARM_PLT32", /* name */
452 true, /* partial_inplace */
453 0x00ffffff, /* src_mask */
454 0x00ffffff, /* dst_mask */
455 true), /* pcrel_offset */
456
457 /* End of relocs used in ARM Linux */
458
459 HOWTO (R_ARM_RREL32, /* type */
460 0, /* rightshift */
461 0, /* size (0 = byte, 1 = short, 2 = long) */
462 0, /* bitsize */
463 false, /* pc_relative */
464 0, /* bitpos */
465 complain_overflow_dont,/* complain_on_overflow */
466 bfd_elf_generic_reloc, /* special_function */
467 "R_ARM_RREL32", /* name */
468 false, /* partial_inplace */
469 0, /* src_mask */
470 0, /* dst_mask */
471 false), /* pcrel_offset */
472
473 HOWTO (R_ARM_RABS32, /* type */
474 0, /* rightshift */
475 0, /* size (0 = byte, 1 = short, 2 = long) */
476 0, /* bitsize */
477 false, /* pc_relative */
478 0, /* bitpos */
479 complain_overflow_dont,/* complain_on_overflow */
480 bfd_elf_generic_reloc, /* special_function */
481 "R_ARM_RABS32", /* name */
482 false, /* partial_inplace */
483 0, /* src_mask */
484 0, /* dst_mask */
485 false), /* pcrel_offset */
486
487 HOWTO (R_ARM_RPC24, /* type */
488 0, /* rightshift */
489 0, /* size (0 = byte, 1 = short, 2 = long) */
490 0, /* bitsize */
491 false, /* pc_relative */
492 0, /* bitpos */
493 complain_overflow_dont,/* complain_on_overflow */
494 bfd_elf_generic_reloc, /* special_function */
495 "R_ARM_RPC24", /* name */
496 false, /* partial_inplace */
497 0, /* src_mask */
498 0, /* dst_mask */
499 false), /* pcrel_offset */
500
501 HOWTO (R_ARM_RBASE, /* type */
502 0, /* rightshift */
503 0, /* size (0 = byte, 1 = short, 2 = long) */
504 0, /* bitsize */
505 false, /* pc_relative */
506 0, /* bitpos */
507 complain_overflow_dont,/* complain_on_overflow */
508 bfd_elf_generic_reloc, /* special_function */
509 "R_ARM_RBASE", /* name */
510 false, /* partial_inplace */
511 0, /* src_mask */
512 0, /* dst_mask */
513 false), /* pcrel_offset */
514
515 };
516
517 /* GNU extension to record C++ vtable hierarchy */
518 static reloc_howto_type elf32_arm_vtinherit_howto =
519 HOWTO (R_ARM_GNU_VTINHERIT, /* type */
520 0, /* rightshift */
521 2, /* size (0 = byte, 1 = short, 2 = long) */
522 0, /* bitsize */
523 false, /* pc_relative */
524 0, /* bitpos */
525 complain_overflow_dont, /* complain_on_overflow */
526 NULL, /* special_function */
527 "R_ARM_GNU_VTINHERIT", /* name */
528 false, /* partial_inplace */
529 0, /* src_mask */
530 0, /* dst_mask */
531 false); /* pcrel_offset */
532
533 /* GNU extension to record C++ vtable member usage */
534 static reloc_howto_type elf32_arm_vtentry_howto =
535 HOWTO (R_ARM_GNU_VTENTRY, /* type */
536 0, /* rightshift */
537 2, /* size (0 = byte, 1 = short, 2 = long) */
538 0, /* bitsize */
539 false, /* pc_relative */
540 0, /* bitpos */
541 complain_overflow_dont, /* complain_on_overflow */
542 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
543 "R_ARM_GNU_VTENTRY", /* name */
544 false, /* partial_inplace */
545 0, /* src_mask */
546 0, /* dst_mask */
547 false); /* pcrel_offset */
548
549 /* 12 bit pc relative */
550 static reloc_howto_type elf32_arm_thm_pc11_howto =
551 HOWTO (R_ARM_THM_PC11, /* type */
552 1, /* rightshift */
553 1, /* size (0 = byte, 1 = short, 2 = long) */
554 11, /* bitsize */
555 true, /* pc_relative */
556 0, /* bitpos */
557 complain_overflow_signed, /* complain_on_overflow */
558 bfd_elf_generic_reloc, /* special_function */
559 "R_ARM_THM_PC11", /* name */
560 false, /* partial_inplace */
561 0x000007ff, /* src_mask */
562 0x000007ff, /* dst_mask */
563 true); /* pcrel_offset */
564
565 /* 12 bit pc relative */
566 static reloc_howto_type elf32_arm_thm_pc9_howto =
567 HOWTO (R_ARM_THM_PC9, /* type */
568 1, /* rightshift */
569 1, /* size (0 = byte, 1 = short, 2 = long) */
570 8, /* bitsize */
571 true, /* pc_relative */
572 0, /* bitpos */
573 complain_overflow_signed, /* complain_on_overflow */
574 bfd_elf_generic_reloc, /* special_function */
575 "R_ARM_THM_PC9", /* name */
576 false, /* partial_inplace */
577 0x000000ff, /* src_mask */
578 0x000000ff, /* dst_mask */
579 true); /* pcrel_offset */
580
581 static void elf32_arm_info_to_howto
582 PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *));
583
584 static void
585 elf32_arm_info_to_howto (abfd, bfd_reloc, elf_reloc)
586 bfd * abfd ATTRIBUTE_UNUSED;
587 arelent * bfd_reloc;
588 Elf32_Internal_Rel * elf_reloc;
589 {
590 unsigned int r_type;
591
592 r_type = ELF32_R_TYPE (elf_reloc->r_info);
593
594 switch (r_type)
595 {
596 case R_ARM_GNU_VTINHERIT:
597 bfd_reloc->howto = & elf32_arm_vtinherit_howto;
598 break;
599
600 case R_ARM_GNU_VTENTRY:
601 bfd_reloc->howto = & elf32_arm_vtentry_howto;
602 break;
603
604 case R_ARM_THM_PC11:
605 bfd_reloc->howto = & elf32_arm_thm_pc11_howto;
606 break;
607
608 case R_ARM_THM_PC9:
609 bfd_reloc->howto = & elf32_arm_thm_pc9_howto;
610 break;
611
612 default:
613 if (r_type >= NUM_ELEM (elf32_arm_howto_table))
614 bfd_reloc->howto = NULL;
615 else
616 bfd_reloc->howto = & elf32_arm_howto_table[r_type];
617 break;
618 }
619 }
620
621 struct elf32_arm_reloc_map
622 {
623 bfd_reloc_code_real_type bfd_reloc_val;
624 unsigned char elf_reloc_val;
625 };
626
627 static const struct elf32_arm_reloc_map elf32_arm_reloc_map[] =
628 {
629 {BFD_RELOC_NONE, R_ARM_NONE},
630 {BFD_RELOC_ARM_PCREL_BRANCH, R_ARM_PC24},
631 {BFD_RELOC_ARM_PCREL_BLX, R_ARM_XPC25},
632 {BFD_RELOC_THUMB_PCREL_BLX, R_ARM_THM_XPC22},
633 {BFD_RELOC_32, R_ARM_ABS32},
634 {BFD_RELOC_32_PCREL, R_ARM_REL32},
635 {BFD_RELOC_8, R_ARM_ABS8},
636 {BFD_RELOC_16, R_ARM_ABS16},
637 {BFD_RELOC_ARM_OFFSET_IMM, R_ARM_ABS12},
638 {BFD_RELOC_ARM_THUMB_OFFSET, R_ARM_THM_ABS5},
639 {BFD_RELOC_THUMB_PCREL_BRANCH23, R_ARM_THM_PC22},
640 {BFD_RELOC_ARM_COPY, R_ARM_COPY},
641 {BFD_RELOC_ARM_GLOB_DAT, R_ARM_GLOB_DAT},
642 {BFD_RELOC_ARM_JUMP_SLOT, R_ARM_JUMP_SLOT},
643 {BFD_RELOC_ARM_RELATIVE, R_ARM_RELATIVE},
644 {BFD_RELOC_ARM_GOTOFF, R_ARM_GOTOFF},
645 {BFD_RELOC_ARM_GOTPC, R_ARM_GOTPC},
646 {BFD_RELOC_ARM_GOT32, R_ARM_GOT32},
647 {BFD_RELOC_ARM_PLT32, R_ARM_PLT32}
648 };
649
650 static reloc_howto_type *
651 elf32_arm_reloc_type_lookup (abfd, code)
652 bfd *abfd ATTRIBUTE_UNUSED;
653 bfd_reloc_code_real_type code;
654 {
655 unsigned int i;
656
657 switch (code)
658 {
659 case BFD_RELOC_VTABLE_INHERIT:
660 return & elf32_arm_vtinherit_howto;
661
662 case BFD_RELOC_VTABLE_ENTRY:
663 return & elf32_arm_vtentry_howto;
664
665 case BFD_RELOC_THUMB_PCREL_BRANCH12:
666 return & elf32_arm_thm_pc11_howto;
667
668 case BFD_RELOC_THUMB_PCREL_BRANCH9:
669 return & elf32_arm_thm_pc9_howto;
670
671 default:
672 for (i = 0; i < NUM_ELEM (elf32_arm_reloc_map); i ++)
673 if (elf32_arm_reloc_map[i].bfd_reloc_val == code)
674 return & elf32_arm_howto_table[elf32_arm_reloc_map[i].elf_reloc_val];
675
676 return NULL;
677 }
678 }
679
680 /* Support for core dump NOTE sections */
681 static boolean
682 elf32_arm_nabi_grok_prstatus (abfd, note)
683 bfd *abfd;
684 Elf_Internal_Note *note;
685 {
686 int offset;
687 int raw_size;
688
689 switch (note->descsz)
690 {
691 default:
692 return false;
693
694 case 148: /* Linux/ARM 32-bit*/
695 /* pr_cursig */
696 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
697
698 /* pr_pid */
699 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24);
700
701 /* pr_reg */
702 offset = 72;
703 raw_size = 72;
704
705 break;
706 }
707
708 /* Make a ".reg/999" section. */
709 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
710 raw_size, note->descpos + offset);
711 }
712
713 static boolean
714 elf32_arm_nabi_grok_psinfo (abfd, note)
715 bfd *abfd;
716 Elf_Internal_Note *note;
717 {
718 switch (note->descsz)
719 {
720 default:
721 return false;
722
723 case 124: /* Linux/ARM elf_prpsinfo */
724 elf_tdata (abfd)->core_program
725 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
726 elf_tdata (abfd)->core_command
727 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
728 }
729
730 /* Note that for some reason, a spurious space is tacked
731 onto the end of the args in some (at least one anyway)
732 implementations, so strip it off if it exists. */
733
734 {
735 char *command = elf_tdata (abfd)->core_command;
736 int n = strlen (command);
737
738 if (0 < n && command[n - 1] == ' ')
739 command[n - 1] = '\0';
740 }
741
742 return true;
743 }
744
745 #define elf_backend_grok_prstatus elf32_arm_nabi_grok_prstatus
746 #define elf_backend_grok_psinfo elf32_arm_nabi_grok_psinfo
747
748 #include "elf32-arm.h"
GDB Binutils - Deliverables
This page took 0.058899 seconds and 5 git commands to generate.