Commit | Line | Data |
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177b1932 | 1 | /* BFD back-end for ARM COFF files. |
46686c78 | 2 | Copyright 1990, 91, 92, 93, 94, 95, 96, 1997 Free Software Foundation, Inc. |
943fbd5b KR |
3 | Written by Cygnus Support. |
4 | ||
5 | This file is part of BFD, the Binary File Descriptor library. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
20 | ||
21 | #include "bfd.h" | |
22 | #include "sysdep.h" | |
23 | #include "libbfd.h" | |
943fbd5b KR |
24 | |
25 | #include "coff/arm.h" | |
26 | ||
27 | #include "coff/internal.h" | |
28 | ||
29 | #ifdef COFF_WITH_PE | |
30 | #include "coff/pe.h" | |
31 | #endif | |
32 | ||
33 | #include "libcoff.h" | |
34 | ||
e1aeb285 NC |
35 | #define APCS_26_FLAG( abfd ) (coff_data (abfd)->flags & F_APCS_26) |
36 | #define APCS_FLOAT_FLAG( abfd ) (coff_data (abfd)->flags & F_APCS_FLOAT) | |
37 | #define PIC_FLAG( abfd ) (coff_data (abfd)->flags & F_PIC) | |
38 | #define APCS_SET( abfd ) (coff_data (abfd)->flags & F_APCS_SET) | |
39 | #define SET_APCS_FLAGS( abfd, flgs) (coff_data (abfd)->flags = \ | |
40 | (coff_data (abfd)->flags & ~ (F_APCS_26 | F_APCS_FLOAT | F_PIC)) \ | |
41 | | (flgs | F_APCS_SET)) | |
42 | #define INTERWORK_FLAG( abfd ) (coff_data (abfd)->flags & F_INTERWORK) | |
43 | #define INTERWORK_SET( abfd ) (coff_data (abfd)->flags & F_INTERWORK_SET) | |
44 | #define SET_INTERWORK_FLAG( abfd, flg ) (coff_data (abfd)->flags = \ | |
45 | (coff_data (abfd)->flags & ~ F_INTERWORK) \ | |
46 | | (flg | F_INTERWORK_SET)) | |
47 | ||
48 | ||
49 | static boolean coff_arm_relocate_section | |
50 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, | |
51 | struct internal_reloc *, struct internal_syment *, asection **)); | |
52 | ||
943fbd5b KR |
53 | static bfd_reloc_status_type |
54 | aoutarm_fix_pcrel_26_done PARAMS ((bfd *, arelent *, asymbol *, PTR, | |
55 | asection *, bfd *, char **)); | |
56 | ||
57 | static bfd_reloc_status_type | |
58 | aoutarm_fix_pcrel_26 PARAMS ((bfd *, arelent *, asymbol *, PTR, | |
59 | asection *, bfd *, char **)); | |
60 | ||
e1aeb285 NC |
61 | static bfd_reloc_status_type |
62 | coff_thumb_pcrel_23 PARAMS ((bfd *, arelent *, asymbol *, PTR, | |
63 | asection *, bfd *, char **)); | |
64 | ||
65 | static bfd_reloc_status_type | |
66 | coff_thumb_pcrel_12 PARAMS ((bfd *, arelent *, asymbol *, PTR, | |
67 | asection *, bfd *, char **)); | |
68 | ||
69 | static bfd_reloc_status_type | |
70 | coff_thumb_pcrel_9 PARAMS ((bfd *, arelent *, asymbol *, PTR, | |
71 | asection *, bfd *, char **)); | |
72 | ||
73 | static bfd_reloc_status_type | |
74 | coff_arm_reloc PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, | |
75 | char **)); | |
943fbd5b | 76 | |
e1aeb285 NC |
77 | static boolean |
78 | coff_arm_adjust_symndx PARAMS ((bfd *, struct bfd_link_info *, bfd *, | |
79 | asection *, struct internal_reloc *, | |
80 | boolean *)); | |
81 | ||
82 | /* The linker script knows the section names for placement. | |
83 | The entry_names are used to do simple name mangling on the stubs. | |
84 | Given a function name, and its type, the stub can be found. The | |
85 | name can be changed. The only requirement is the %s be present. | |
86 | */ | |
87 | ||
88 | #define THUMB2ARM_GLUE_SECTION_NAME ".glue_7t" | |
89 | #define THUMB2ARM_GLUE_ENTRY_NAME "__%s_from_thumb" | |
90 | ||
91 | #define ARM2THUMB_GLUE_SECTION_NAME ".glue_7" | |
92 | #define ARM2THUMB_GLUE_ENTRY_NAME "__%s_from_arm" | |
275143eb SC |
93 | |
94 | /* Used by the assembler. */ | |
943fbd5b KR |
95 | static bfd_reloc_status_type |
96 | coff_arm_reloc (abfd, reloc_entry, symbol, data, input_section, output_bfd, | |
97 | error_message) | |
98 | bfd *abfd; | |
99 | arelent *reloc_entry; | |
100 | asymbol *symbol; | |
101 | PTR data; | |
102 | asection *input_section; | |
103 | bfd *output_bfd; | |
104 | char **error_message; | |
105 | { | |
106 | symvalue diff; | |
943fbd5b KR |
107 | if (output_bfd == (bfd *) NULL) |
108 | return bfd_reloc_continue; | |
109 | ||
da7afe3b | 110 | diff = reloc_entry->addend; |
943fbd5b KR |
111 | |
112 | #define DOIT(x) \ | |
113 | x = ((x & ~howto->dst_mask) | (((x & howto->src_mask) + diff) & howto->dst_mask)) | |
114 | ||
da7afe3b SC |
115 | if (diff != 0) |
116 | { | |
117 | reloc_howto_type *howto = reloc_entry->howto; | |
118 | unsigned char *addr = (unsigned char *) data + reloc_entry->address; | |
943fbd5b | 119 | |
da7afe3b | 120 | switch (howto->size) |
943fbd5b | 121 | { |
da7afe3b SC |
122 | case 0: |
123 | { | |
124 | char x = bfd_get_8 (abfd, addr); | |
125 | DOIT (x); | |
126 | bfd_put_8 (abfd, x, addr); | |
127 | } | |
128 | break; | |
129 | ||
130 | case 1: | |
131 | { | |
132 | short x = bfd_get_16 (abfd, addr); | |
133 | DOIT (x); | |
134 | bfd_put_16 (abfd, x, addr); | |
135 | } | |
136 | break; | |
137 | ||
138 | case 2: | |
139 | { | |
140 | long x = bfd_get_32 (abfd, addr); | |
141 | DOIT (x); | |
142 | bfd_put_32 (abfd, x, addr); | |
143 | } | |
144 | break; | |
145 | ||
146 | default: | |
147 | abort (); | |
943fbd5b | 148 | } |
da7afe3b | 149 | } |
943fbd5b KR |
150 | |
151 | /* Now let bfd_perform_relocation finish everything up. */ | |
152 | return bfd_reloc_continue; | |
153 | } | |
154 | ||
09888f15 NC |
155 | #define TARGET_UNDERSCORE '_' |
156 | /* #define TARGET_UNDERSCORE '\0' */ | |
e1aeb285 | 157 | |
3ea928f5 SC |
158 | #ifndef PCRELOFFSET |
159 | #define PCRELOFFSET true | |
160 | #endif | |
161 | ||
e1aeb285 NC |
162 | /* These most certainly belong somewhere else. Just had to get rid of |
163 | the manifest constants in the code. */ | |
164 | ||
165 | #define ARM_8 0 | |
166 | #define ARM_16 1 | |
167 | #define ARM_32 2 | |
168 | #define ARM_26 3 | |
169 | #define ARM_DISP8 4 | |
170 | #define ARM_DISP16 5 | |
171 | #define ARM_DISP32 6 | |
172 | #define ARM_26D 7 | |
173 | /* 8 is unused */ | |
174 | #define ARM_NEG16 9 | |
175 | #define ARM_NEG32 10 | |
176 | #define ARM_RVA32 11 | |
177 | #define ARM_THUMB9 12 | |
178 | #define ARM_THUMB12 13 | |
179 | #define ARM_THUMB23 14 | |
180 | ||
943fbd5b KR |
181 | static reloc_howto_type aoutarm_std_reloc_howto[] = |
182 | { | |
183 | /* type rs size bsz pcrel bitpos ovrf sf name part_inpl readmask setmask pcdone */ | |
e1aeb285 NC |
184 | HOWTO(ARM_8, /* type */ |
185 | 0, /* rightshift */ | |
943fbd5b | 186 | 0, /* size */ |
e1aeb285 NC |
187 | 8, /* bitsize */ |
188 | false, /* pc_relative */ | |
943fbd5b | 189 | 0, /* bitpos */ |
e1aeb285 NC |
190 | complain_overflow_bitfield, /* complain_on_overflow */ |
191 | coff_arm_reloc, /* special_function */ | |
192 | "ARM_8", /* name */ | |
193 | true, /* partial_inplace */ | |
194 | 0x000000ff, /* src_mask */ | |
195 | 0x000000ff, /* dst_mask */ | |
196 | PCRELOFFSET /* pcrel_offset */), | |
197 | HOWTO(ARM_16, | |
943fbd5b KR |
198 | 0, |
199 | 1, | |
200 | 16, | |
201 | false, | |
202 | 0, | |
203 | complain_overflow_bitfield, | |
204 | coff_arm_reloc, | |
e1aeb285 | 205 | "ARM_16", |
943fbd5b KR |
206 | true, |
207 | 0x0000ffff, | |
208 | 0x0000ffff, | |
209 | PCRELOFFSET), | |
e1aeb285 | 210 | HOWTO(ARM_32, |
943fbd5b KR |
211 | 0, |
212 | 2, | |
213 | 32, | |
214 | false, | |
215 | 0, | |
216 | complain_overflow_bitfield, | |
217 | coff_arm_reloc, | |
e1aeb285 | 218 | "ARM_32", |
943fbd5b KR |
219 | true, |
220 | 0xffffffff, | |
221 | 0xffffffff, | |
222 | PCRELOFFSET), | |
e1aeb285 | 223 | HOWTO(ARM_26, |
943fbd5b | 224 | 2, |
3ea928f5 | 225 | 2, |
943fbd5b KR |
226 | 26, |
227 | true, | |
228 | 0, | |
229 | complain_overflow_signed, | |
230 | aoutarm_fix_pcrel_26 , | |
e1aeb285 | 231 | "ARM_26", |
275143eb | 232 | false, |
943fbd5b KR |
233 | 0x00ffffff, |
234 | 0x00ffffff, | |
235 | PCRELOFFSET), | |
e1aeb285 | 236 | HOWTO(ARM_DISP8, |
943fbd5b KR |
237 | 0, |
238 | 0, | |
239 | 8, | |
240 | true, | |
241 | 0, | |
242 | complain_overflow_signed, | |
243 | coff_arm_reloc, | |
e1aeb285 | 244 | "ARM_DISP8", |
943fbd5b KR |
245 | true, |
246 | 0x000000ff, | |
247 | 0x000000ff, | |
248 | true), | |
e1aeb285 | 249 | HOWTO( ARM_DISP16, |
943fbd5b KR |
250 | 0, |
251 | 1, | |
252 | 16, | |
253 | true, | |
254 | 0, | |
255 | complain_overflow_signed, | |
256 | coff_arm_reloc, | |
e1aeb285 | 257 | "ARM_DISP16", |
943fbd5b KR |
258 | true, |
259 | 0x0000ffff, | |
260 | 0x0000ffff, | |
261 | true), | |
e1aeb285 | 262 | HOWTO( ARM_DISP32, |
943fbd5b KR |
263 | 0, |
264 | 2, | |
265 | 32, | |
266 | true, | |
267 | 0, | |
268 | complain_overflow_signed, | |
269 | coff_arm_reloc, | |
e1aeb285 | 270 | "ARM_DISP32", |
943fbd5b KR |
271 | true, |
272 | 0xffffffff, | |
273 | 0xffffffff, | |
274 | true), | |
e1aeb285 | 275 | HOWTO( ARM_26D, |
943fbd5b | 276 | 2, |
3ea928f5 | 277 | 2, |
943fbd5b KR |
278 | 26, |
279 | false, | |
280 | 0, | |
281 | complain_overflow_signed, | |
282 | aoutarm_fix_pcrel_26_done, | |
e1aeb285 | 283 | "ARM_26D", |
943fbd5b KR |
284 | true, |
285 | 0x00ffffff, | |
46686c78 | 286 | 0x0, |
943fbd5b | 287 | false), |
e1aeb285 | 288 | /* 8 is unused */ |
943fbd5b | 289 | {-1}, |
e1aeb285 | 290 | HOWTO( ARM_NEG16, |
943fbd5b KR |
291 | 0, |
292 | -1, | |
293 | 16, | |
294 | false, | |
295 | 0, | |
296 | complain_overflow_bitfield, | |
297 | coff_arm_reloc, | |
e1aeb285 | 298 | "ARM_NEG16", |
943fbd5b KR |
299 | true, |
300 | 0x0000ffff, | |
301 | 0x0000ffff, | |
302 | false), | |
e1aeb285 | 303 | HOWTO( ARM_NEG32, |
943fbd5b KR |
304 | 0, |
305 | -2, | |
306 | 32, | |
307 | false, | |
308 | 0, | |
309 | complain_overflow_bitfield, | |
310 | coff_arm_reloc, | |
e1aeb285 | 311 | "ARM_NEG32", |
943fbd5b KR |
312 | true, |
313 | 0xffffffff, | |
314 | 0xffffffff, | |
3ea928f5 | 315 | false), |
e1aeb285 | 316 | HOWTO( ARM_RVA32, |
3ea928f5 SC |
317 | 0, |
318 | 2, | |
319 | 32, | |
320 | false, | |
321 | 0, | |
322 | complain_overflow_bitfield, | |
323 | coff_arm_reloc, | |
e1aeb285 | 324 | "ARM_RVA32", |
3ea928f5 SC |
325 | true, |
326 | 0xffffffff, | |
327 | 0xffffffff, | |
328 | PCRELOFFSET), | |
e1aeb285 NC |
329 | HOWTO( ARM_THUMB9, |
330 | 1, | |
331 | 1, | |
332 | 9, | |
333 | true, | |
334 | 0, | |
335 | complain_overflow_signed, | |
336 | coff_thumb_pcrel_9 , | |
337 | "ARM_THUMB9", | |
338 | false, | |
339 | 0x000000ff, | |
340 | 0x000000ff, | |
341 | PCRELOFFSET), | |
342 | HOWTO( ARM_THUMB12, | |
343 | 1, | |
344 | 1, | |
345 | 12, | |
346 | true, | |
347 | 0, | |
348 | complain_overflow_signed, | |
349 | coff_thumb_pcrel_12 , | |
350 | "ARM_THUMB12", | |
351 | false, | |
352 | 0x000007ff, | |
353 | 0x000007ff, | |
354 | PCRELOFFSET), | |
355 | HOWTO( ARM_THUMB23, | |
356 | 1, | |
357 | 2, | |
358 | 23, | |
359 | true, | |
360 | 0, | |
361 | complain_overflow_signed, | |
362 | coff_thumb_pcrel_23 , | |
363 | "ARM_THUMB23", | |
364 | false, | |
365 | 0x07ff07ff, | |
366 | 0x07ff07ff, | |
367 | PCRELOFFSET), | |
943fbd5b | 368 | }; |
177b1932 DE |
369 | #ifdef COFF_WITH_PE |
370 | /* Return true if this relocation should | |
371 | appear in the output .reloc section. */ | |
372 | ||
373 | static boolean in_reloc_p (abfd, howto) | |
374 | bfd * abfd; | |
375 | reloc_howto_type *howto; | |
376 | { | |
377 | return !howto->pc_relative && howto->type != 11; | |
378 | } | |
379 | #endif | |
943fbd5b KR |
380 | |
381 | ||
943fbd5b KR |
382 | #define RTYPE2HOWTO(cache_ptr, dst) \ |
383 | (cache_ptr)->howto = aoutarm_std_reloc_howto + (dst)->r_type; | |
384 | ||
275143eb | 385 | #define coff_rtype_to_howto coff_arm_rtype_to_howto |
a5655244 | 386 | |
275143eb SC |
387 | static reloc_howto_type * |
388 | coff_arm_rtype_to_howto (abfd, sec, rel, h, sym, addendp) | |
389 | bfd *abfd; | |
390 | asection *sec; | |
391 | struct internal_reloc *rel; | |
392 | struct coff_link_hash_entry *h; | |
393 | struct internal_syment *sym; | |
394 | bfd_vma *addendp; | |
395 | { | |
396 | reloc_howto_type *howto; | |
397 | ||
398 | howto = aoutarm_std_reloc_howto + rel->r_type; | |
399 | ||
e1aeb285 | 400 | if (rel->r_type == ARM_RVA32) |
275143eb | 401 | { |
a5655244 | 402 | *addendp -= pe_data(sec->output_section->owner)->pe_opthdr.ImageBase; |
275143eb | 403 | } |
46686c78 NC |
404 | |
405 | /* The relocation_section function will skip pcrel_offset relocs | |
406 | when doing a relocateable link. However, we want to convert | |
407 | ARM26 to ARM26D relocs if possible. We return a fake howto in | |
408 | this case without pcrel_offset set, and adjust the addend to | |
409 | compensate. */ | |
e1aeb285 | 410 | if (rel->r_type == ARM_26 |
46686c78 NC |
411 | && h != NULL |
412 | && (h->root.type == bfd_link_hash_defined | |
413 | || h->root.type == bfd_link_hash_defweak) | |
414 | && h->root.u.def.section->output_section == sec->output_section) | |
415 | { | |
416 | static reloc_howto_type fake_arm26_reloc = | |
e1aeb285 | 417 | HOWTO (ARM_26, |
46686c78 NC |
418 | 2, |
419 | 2, | |
420 | 26, | |
421 | true, | |
422 | 0, | |
423 | complain_overflow_signed, | |
424 | aoutarm_fix_pcrel_26 , | |
e1aeb285 | 425 | "ARM_26", |
46686c78 NC |
426 | false, |
427 | 0x00ffffff, | |
428 | 0x00ffffff, | |
429 | false); | |
430 | ||
431 | *addendp -= rel->r_vaddr - sec->vma; | |
e1aeb285 | 432 | return & fake_arm26_reloc; |
46686c78 NC |
433 | } |
434 | ||
275143eb SC |
435 | return howto; |
436 | ||
437 | } | |
438 | /* Used by the assembler. */ | |
439 | ||
943fbd5b KR |
440 | static bfd_reloc_status_type |
441 | aoutarm_fix_pcrel_26_done (abfd, reloc_entry, symbol, data, input_section, | |
442 | output_bfd, error_message) | |
443 | bfd *abfd; | |
444 | arelent *reloc_entry; | |
445 | asymbol *symbol; | |
446 | PTR data; | |
447 | asection *input_section; | |
448 | bfd *output_bfd; | |
449 | char **error_message; | |
450 | { | |
451 | /* This is dead simple at present. */ | |
452 | return bfd_reloc_ok; | |
453 | } | |
454 | ||
275143eb SC |
455 | /* Used by the assembler. */ |
456 | ||
943fbd5b KR |
457 | static bfd_reloc_status_type |
458 | aoutarm_fix_pcrel_26 (abfd, reloc_entry, symbol, data, input_section, | |
459 | output_bfd, error_message) | |
460 | bfd *abfd; | |
461 | arelent *reloc_entry; | |
462 | asymbol *symbol; | |
463 | PTR data; | |
464 | asection *input_section; | |
465 | bfd *output_bfd; | |
466 | char **error_message; | |
467 | { | |
468 | bfd_vma relocation; | |
469 | bfd_size_type addr = reloc_entry->address; | |
470 | long target = bfd_get_32 (abfd, (bfd_byte *) data + addr); | |
471 | bfd_reloc_status_type flag = bfd_reloc_ok; | |
472 | ||
473 | /* If this is an undefined symbol, return error */ | |
474 | if (symbol->section == &bfd_und_section | |
475 | && (symbol->flags & BSF_WEAK) == 0) | |
476 | return output_bfd ? bfd_reloc_continue : bfd_reloc_undefined; | |
477 | ||
478 | /* If the sections are different, and we are doing a partial relocation, | |
479 | just ignore it for now. */ | |
480 | if (symbol->section->name != input_section->name | |
481 | && output_bfd != (bfd *)NULL) | |
482 | return bfd_reloc_continue; | |
483 | ||
484 | relocation = (target & 0x00ffffff) << 2; | |
485 | relocation = (relocation ^ 0x02000000) - 0x02000000; /* Sign extend */ | |
486 | relocation += symbol->value; | |
487 | relocation += symbol->section->output_section->vma; | |
488 | relocation += symbol->section->output_offset; | |
489 | relocation += reloc_entry->addend; | |
490 | relocation -= input_section->output_section->vma; | |
491 | relocation -= input_section->output_offset; | |
492 | relocation -= addr; | |
e1aeb285 | 493 | |
943fbd5b KR |
494 | if (relocation & 3) |
495 | return bfd_reloc_overflow; | |
496 | ||
497 | /* Check for overflow */ | |
498 | if (relocation & 0x02000000) | |
499 | { | |
500 | if ((relocation & ~0x03ffffff) != ~0x03ffffff) | |
501 | flag = bfd_reloc_overflow; | |
502 | } | |
503 | else if (relocation & ~0x03ffffff) | |
504 | flag = bfd_reloc_overflow; | |
505 | ||
506 | target &= ~0x00ffffff; | |
507 | target |= (relocation >> 2) & 0x00ffffff; | |
508 | bfd_put_32 (abfd, target, (bfd_byte *) data + addr); | |
509 | ||
510 | /* Now the ARM magic... Change the reloc type so that it is marked as done. | |
511 | Strictly this is only necessary if we are doing a partial relocation. */ | |
e1aeb285 NC |
512 | reloc_entry->howto = &aoutarm_std_reloc_howto[ARM_26D]; |
513 | ||
514 | return flag; | |
515 | } | |
516 | ||
517 | typedef enum {bunknown, b9, b12, b23} thumb_pcrel_branchtype; | |
518 | ||
519 | static bfd_reloc_status_type | |
520 | coff_thumb_pcrel_common (abfd, reloc_entry, symbol, data, input_section, | |
521 | output_bfd, error_message, btype) | |
522 | bfd *abfd; | |
523 | arelent *reloc_entry; | |
524 | asymbol *symbol; | |
525 | PTR data; | |
526 | asection *input_section; | |
527 | bfd *output_bfd; | |
528 | char **error_message; | |
529 | thumb_pcrel_branchtype btype; | |
530 | { | |
531 | bfd_vma relocation; | |
532 | bfd_size_type addr = reloc_entry->address; | |
533 | long target = bfd_get_32 (abfd, (bfd_byte *) data + addr); | |
534 | bfd_reloc_status_type flag = bfd_reloc_ok; | |
535 | bfd_vma dstmsk; | |
536 | bfd_vma offmsk; | |
537 | bfd_vma signbit; | |
538 | ||
539 | /* NOTE: This routine is currently used by GAS, but not by the link | |
540 | phase. */ | |
541 | ||
542 | switch (btype) | |
543 | { | |
544 | case b9: | |
545 | dstmsk = 0x000000ff; | |
546 | offmsk = 0x000001fe; | |
547 | signbit = 0x00000100; | |
548 | break; | |
549 | ||
550 | case b12: | |
551 | dstmsk = 0x000007ff; | |
552 | offmsk = 0x00000ffe; | |
553 | signbit = 0x00000800; | |
554 | break; | |
555 | ||
556 | case b23: | |
557 | dstmsk = 0x07ff07ff; | |
558 | offmsk = 0x007fffff; | |
559 | signbit = 0x00400000; | |
560 | break; | |
561 | ||
562 | default: | |
563 | abort (); | |
564 | } | |
565 | ||
566 | /* If this is an undefined symbol, return error */ | |
567 | if (symbol->section == &bfd_und_section | |
568 | && (symbol->flags & BSF_WEAK) == 0) | |
569 | return output_bfd ? bfd_reloc_continue : bfd_reloc_undefined; | |
570 | ||
571 | /* If the sections are different, and we are doing a partial relocation, | |
572 | just ignore it for now. */ | |
573 | if (symbol->section->name != input_section->name | |
574 | && output_bfd != (bfd *)NULL) | |
575 | return bfd_reloc_continue; | |
576 | ||
577 | switch (btype) | |
578 | { | |
579 | case b9: | |
580 | case b12: | |
581 | relocation = ((target & dstmsk) << 1); | |
582 | break; | |
583 | ||
584 | case b23: | |
585 | if (bfd_big_endian (abfd)) | |
586 | relocation = ((target & 0x7ff) << 1) | ((target & 0x07ff0000) >> 4); | |
587 | else | |
588 | relocation = ((target & 0x7ff) << 12) | ((target & 0x07ff0000) >> 15); | |
589 | break; | |
590 | } | |
591 | ||
592 | relocation = (relocation ^ signbit) - signbit; /* Sign extend */ | |
593 | relocation += symbol->value; | |
594 | relocation += symbol->section->output_section->vma; | |
595 | relocation += symbol->section->output_offset; | |
596 | relocation += reloc_entry->addend; | |
597 | relocation -= input_section->output_section->vma; | |
598 | relocation -= input_section->output_offset; | |
599 | relocation -= addr; | |
600 | ||
601 | if (relocation & 1) | |
602 | return bfd_reloc_overflow; | |
603 | ||
604 | /* Check for overflow */ | |
605 | if (relocation & signbit) | |
606 | { | |
607 | if ((relocation & ~offmsk) != ~offmsk) | |
608 | flag = bfd_reloc_overflow; | |
609 | } | |
610 | else if (relocation & ~offmsk) | |
611 | flag = bfd_reloc_overflow; | |
612 | ||
613 | target &= ~dstmsk; | |
614 | switch (btype) | |
615 | { | |
616 | case b9: | |
617 | case b12: | |
618 | target |= (relocation >> 1); | |
619 | break; | |
620 | ||
621 | case b23: | |
622 | if (bfd_big_endian (abfd)) | |
623 | target |= ((relocation & 0xfff) >> 1) | ((relocation << 4) & 0x07ff0000); | |
624 | else | |
625 | target |= ((relocation & 0xffe) << 15) | ((relocation >> 12) & 0x7ff); | |
626 | break; | |
627 | } | |
275143eb | 628 | |
e1aeb285 NC |
629 | bfd_put_32 (abfd, target, (bfd_byte *) data + addr); |
630 | ||
631 | /* Now the ARM magic... Change the reloc type so that it is marked as done. | |
632 | Strictly this is only necessary if we are doing a partial relocation. */ | |
633 | reloc_entry->howto = & aoutarm_std_reloc_howto [ARM_26D]; | |
634 | ||
635 | /* TODO: We should possibly have DONE entries for the THUMB PCREL relocations */ | |
943fbd5b KR |
636 | return flag; |
637 | } | |
638 | ||
e1aeb285 NC |
639 | static bfd_reloc_status_type |
640 | coff_thumb_pcrel_23 (abfd, reloc_entry, symbol, data, input_section, | |
641 | output_bfd, error_message) | |
642 | bfd *abfd; | |
643 | arelent *reloc_entry; | |
644 | asymbol *symbol; | |
645 | PTR data; | |
646 | asection *input_section; | |
647 | bfd *output_bfd; | |
648 | char **error_message; | |
649 | { | |
650 | return coff_thumb_pcrel_common (abfd, reloc_entry, symbol, data, | |
651 | input_section, output_bfd, error_message, b23); | |
652 | } | |
653 | ||
654 | static bfd_reloc_status_type | |
655 | coff_thumb_pcrel_12 (abfd, reloc_entry, symbol, data, input_section, | |
656 | output_bfd, error_message) | |
657 | bfd *abfd; | |
658 | arelent *reloc_entry; | |
659 | asymbol *symbol; | |
660 | PTR data; | |
661 | asection *input_section; | |
662 | bfd *output_bfd; | |
663 | char **error_message; | |
664 | { | |
665 | return coff_thumb_pcrel_common (abfd, reloc_entry, symbol, data, | |
666 | input_section, output_bfd, error_message, b12); | |
667 | } | |
668 | ||
669 | static bfd_reloc_status_type | |
670 | coff_thumb_pcrel_9 (abfd, reloc_entry, symbol, data, input_section, | |
671 | output_bfd, error_message) | |
672 | bfd *abfd; | |
673 | arelent *reloc_entry; | |
674 | asymbol *symbol; | |
675 | PTR data; | |
676 | asection *input_section; | |
677 | bfd *output_bfd; | |
678 | char **error_message; | |
679 | { | |
680 | return coff_thumb_pcrel_common (abfd, reloc_entry, symbol, data, | |
681 | input_section, output_bfd, error_message, b9); | |
682 | } | |
683 | ||
275143eb | 684 | |
943fbd5b KR |
685 | static CONST struct reloc_howto_struct * |
686 | arm_reloc_type_lookup(abfd,code) | |
687 | bfd *abfd; | |
688 | bfd_reloc_code_real_type code; | |
689 | { | |
690 | #define ASTD(i,j) case i: return &aoutarm_std_reloc_howto[j] | |
691 | if (code == BFD_RELOC_CTOR) | |
692 | switch (bfd_get_arch_info (abfd)->bits_per_address) | |
693 | { | |
694 | case 32: | |
695 | code = BFD_RELOC_32; | |
696 | break; | |
697 | default: return (CONST struct reloc_howto_struct *) 0; | |
698 | } | |
699 | ||
700 | switch (code) | |
701 | { | |
e1aeb285 NC |
702 | ASTD (BFD_RELOC_8, ARM_8); |
703 | ASTD (BFD_RELOC_16, ARM_16); | |
704 | ASTD (BFD_RELOC_32, ARM_32); | |
705 | ASTD (BFD_RELOC_ARM_PCREL_BRANCH, ARM_26); | |
706 | ASTD (BFD_RELOC_8_PCREL, ARM_DISP8); | |
707 | ASTD (BFD_RELOC_16_PCREL, ARM_DISP16); | |
708 | ASTD (BFD_RELOC_32_PCREL, ARM_DISP32); | |
709 | ASTD (BFD_RELOC_RVA, ARM_RVA32); | |
710 | ASTD (BFD_RELOC_THUMB_PCREL_BRANCH9, ARM_THUMB9); | |
711 | ASTD (BFD_RELOC_THUMB_PCREL_BRANCH12, ARM_THUMB12); | |
712 | ASTD (BFD_RELOC_THUMB_PCREL_BRANCH23, ARM_THUMB23); | |
943fbd5b KR |
713 | default: return (CONST struct reloc_howto_struct *) 0; |
714 | } | |
715 | } | |
716 | ||
717 | ||
718 | #define coff_bfd_reloc_type_lookup arm_reloc_type_lookup | |
719 | ||
943fbd5b | 720 | #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2) |
943fbd5b | 721 | #define COFF_PAGE_SIZE 0x1000 |
943fbd5b KR |
722 | /* Turn a howto into a reloc nunmber */ |
723 | ||
724 | #define SELECT_RELOC(x,howto) { x.r_type = howto->type; } | |
725 | #define BADMAG(x) ARMBADMAG(x) | |
726 | #define ARM 1 /* Customize coffcode.h */ | |
727 | ||
e1aeb285 NC |
728 | /* The set of global variables that mark the total size of each kind |
729 | of glue required. */ | |
f76d3101 NC |
730 | static long int global_thumb_glue_size = 0; |
731 | static long int global_arm_glue_size = 0; | |
e1aeb285 | 732 | |
f76d3101 | 733 | static bfd * bfd_of_glue_owner = 0; |
e1aeb285 NC |
734 | |
735 | /* some typedefs for holding instructions */ | |
736 | typedef unsigned long int insn32; | |
737 | typedef unsigned short int insn16; | |
738 | ||
739 | \f | |
740 | /* The thumb form of a long branch is a bit finicky, because the offset | |
741 | encoding is split over two fields, each in it's own instruction. They | |
742 | can occur in any order. So given a thumb form of long branch, and an | |
743 | offset, insert the offset into the thumb branch and return finished | |
744 | instruction. | |
745 | ||
746 | It takes two thumb instructions to encode the target address. Each has | |
747 | 11 bits to invest. The upper 11 bits are stored in one (identifed by | |
748 | H-0.. see below), the lower 11 bits are stored in the other (identified | |
749 | by H-1). | |
750 | ||
751 | Combine together and shifted left by 1 (it's a half word address) and | |
752 | there you have it. | |
753 | ||
754 | Op: 1111 = F, | |
755 | H-0, upper address-0 = 000 | |
756 | Op: 1111 = F, | |
757 | H-1, lower address-0 = 800 | |
758 | ||
759 | They can be ordered either way, but the arm tools I've seen always put | |
760 | the lower one first. It probably doesn't matter. krk@cygnus.com | |
761 | ||
762 | XXX: Actually the order does matter. The second instruction (H-1) | |
763 | moves the computed address into the PC, so it must be the second one | |
764 | in the sequence. The problem, however is that whilst little endian code | |
765 | stores the instructions in HI then LOW order, big endian code does the | |
766 | reverse. nickc@cygnus.com */ | |
767 | ||
768 | #define LOW_HI_ORDER 0xF800F000 | |
769 | #define HI_LOW_ORDER 0xF000F800 | |
770 | ||
771 | static insn32 | |
772 | insert_thumb_branch (br_insn, rel_off) | |
773 | insn32 br_insn; | |
774 | int rel_off; | |
775 | { | |
776 | unsigned int low_bits; | |
777 | unsigned int high_bits; | |
943fbd5b | 778 | |
46686c78 | 779 | |
e1aeb285 | 780 | BFD_ASSERT((rel_off & 1) != 1); |
46686c78 | 781 | |
e1aeb285 NC |
782 | rel_off >>= 1; /* half word aligned address */ |
783 | low_bits = rel_off & 0x000007FF; /* the bottom 11 bits */ | |
784 | high_bits = ( rel_off >> 11 ) & 0x000007FF; /* the top 11 bits */ | |
46686c78 | 785 | |
e1aeb285 NC |
786 | if ((br_insn & LOW_HI_ORDER) == LOW_HI_ORDER) |
787 | br_insn = LOW_HI_ORDER | (low_bits << 16) | high_bits; | |
788 | else if ((br_insn & HI_LOW_ORDER) == HI_LOW_ORDER) | |
789 | br_insn = HI_LOW_ORDER | (high_bits << 16) | low_bits; | |
790 | else | |
791 | abort(); /* error - not a valid branch instruction form */ | |
46686c78 | 792 | |
e1aeb285 | 793 | /* FIXME: abort is probably not the right call. krk@cygnus.com */ |
46686c78 | 794 | |
e1aeb285 NC |
795 | return br_insn; |
796 | } | |
46686c78 | 797 | |
e1aeb285 NC |
798 | \f |
799 | static struct coff_link_hash_entry * | |
800 | find_thumb_glue (info, name, input_bfd) | |
801 | struct bfd_link_info * info; | |
802 | char * name; | |
803 | bfd * input_bfd; | |
46686c78 | 804 | { |
e1aeb285 | 805 | char *tmp_name = 0; |
46686c78 | 806 | |
e1aeb285 | 807 | struct coff_link_hash_entry *myh = 0; |
46686c78 | 808 | |
e1aeb285 NC |
809 | tmp_name = ((char *) |
810 | bfd_malloc (strlen (name) + strlen (THUMB2ARM_GLUE_ENTRY_NAME))); | |
46686c78 | 811 | |
e1aeb285 | 812 | BFD_ASSERT (tmp_name); |
46686c78 | 813 | |
e1aeb285 NC |
814 | sprintf (tmp_name, THUMB2ARM_GLUE_ENTRY_NAME, name); |
815 | ||
816 | myh = coff_link_hash_lookup (coff_hash_table (info), | |
817 | tmp_name, | |
818 | false, false, true); | |
819 | if (myh == NULL) | |
820 | { | |
821 | _bfd_error_handler ("%s: unable to find THUMB glue '%s' for `%s'", | |
822 | bfd_get_filename (input_bfd), tmp_name, name); | |
46686c78 NC |
823 | } |
824 | ||
e1aeb285 | 825 | free (tmp_name); |
46686c78 | 826 | |
e1aeb285 | 827 | return myh; |
46686c78 NC |
828 | } |
829 | ||
e1aeb285 NC |
830 | static struct coff_link_hash_entry * |
831 | find_arm_glue (info, name, input_bfd) | |
832 | struct bfd_link_info * info; | |
833 | char * name; | |
834 | bfd * input_bfd; | |
46686c78 | 835 | { |
e1aeb285 NC |
836 | char *tmp_name = 0; |
837 | struct coff_link_hash_entry *myh = 0; | |
315dc1f4 | 838 | |
e1aeb285 NC |
839 | tmp_name = ((char *) |
840 | bfd_malloc (strlen (name) + strlen (ARM2THUMB_GLUE_ENTRY_NAME))); | |
46686c78 | 841 | |
e1aeb285 | 842 | BFD_ASSERT (tmp_name); |
46686c78 | 843 | |
e1aeb285 NC |
844 | sprintf (tmp_name, ARM2THUMB_GLUE_ENTRY_NAME, name); |
845 | ||
846 | myh = coff_link_hash_lookup (coff_hash_table (info), | |
847 | tmp_name, | |
848 | false, false, true); | |
46686c78 | 849 | |
e1aeb285 NC |
850 | if (myh == NULL) |
851 | { | |
852 | _bfd_error_handler ("%s: unable to find ARM glue '%s' for `%s'", | |
853 | bfd_get_filename (input_bfd), tmp_name, name); | |
854 | } | |
46686c78 | 855 | |
e1aeb285 | 856 | free (tmp_name); |
46686c78 | 857 | |
e1aeb285 NC |
858 | return myh; |
859 | } | |
46686c78 | 860 | |
e1aeb285 NC |
861 | /* |
862 | ARM->Thumb glue: | |
863 | ||
864 | .arm | |
865 | __func_from_arm: | |
866 | ldr r12, __func_addr | |
867 | bx r12 | |
868 | __func_addr: | |
869 | .word func @ behave as if you saw a ARM_32 reloc | |
870 | ||
871 | ldr ip,8 <__func_addr> e59fc000 | |
872 | bx ip e12fff1c | |
873 | .word func 00000001 | |
874 | ||
875 | */ | |
876 | ||
877 | #define ARM2THUMB_GLUE_SIZE 12 | |
878 | static insn32 | |
879 | a2t1_ldr_insn = 0xe59fc000, | |
880 | a2t2_bx_r12_insn = 0xe12fff1c, | |
881 | a2t3_func_addr_insn = 0x00000001; | |
882 | ||
883 | /* | |
884 | Thumb->ARM: | |
885 | ||
886 | .thumb | |
887 | .align 2 | |
888 | __func_from_thumb: | |
889 | bx pc | |
890 | nop | |
891 | .arm | |
892 | __func_change_to_arm: | |
893 | b func | |
894 | ||
895 | ||
896 | bx pc 4778 | |
897 | nop 0000 | |
898 | b func eafffffe | |
899 | ||
900 | */ | |
901 | ||
902 | #define THUMB2ARM_GLUE_SIZE 8 | |
903 | static insn16 | |
904 | t2a1_bx_pc_insn = 0x4778, | |
905 | t2a2_noop_insn = 0x46c0; | |
906 | static insn32 | |
907 | t2a3_b_insn = 0xea000000; | |
908 | ||
909 | /* TODO: | |
910 | We should really create new local (static) symbols in destination | |
911 | object for each stub we create. We should also create local | |
912 | (static) symbols within the stubs when switching between ARM and | |
913 | Thumb code. This will ensure that the debugger and disassembler | |
914 | can present a better view of stubs. | |
915 | ||
916 | We can treat stubs like literal sections, and for the THUMB9 ones | |
917 | (short addressing range) we should be able to insert the stubs | |
918 | between sections. i.e. the simplest approach (since relocations | |
919 | are done on a section basis) is to dump the stubs at the end of | |
920 | processing a section. That way we can always try and minimise the | |
921 | offset to and from a stub. However, this does not map well onto | |
922 | the way that the linker/BFD does its work: mapping all input | |
923 | sections to output sections via the linker script before doing | |
924 | all the processing. | |
925 | ||
926 | Unfortunately it may be easier to just to disallow short range | |
927 | Thumb->ARM stubs (i.e. no conditional inter-working branches, | |
928 | only branch-and-link (BL) calls. This will simplify the processing | |
929 | since we can then put all of the stubs into their own section. | |
930 | ||
931 | TODO: | |
932 | On a different subject, rather than complaining when a | |
933 | branch cannot fit in the number of bits available for the | |
934 | instruction we should generate a trampoline stub (needed to | |
935 | address the complete 32bit address space). */ | |
936 | ||
937 | /* The standard COFF backend linker does not cope with the special | |
938 | Thumb BRANCH23 relocation. The alternative would be to split the | |
939 | BRANCH23 into seperate HI23 and LO23 relocations. However, it is a | |
940 | bit simpler simply providing our own relocation driver. */ | |
941 | ||
942 | /* The reloc processing routine for the ARM/Thumb COFF linker. NOTE: | |
943 | This code is a very slightly modified copy of | |
944 | _bfd_coff_generic_relocate_section. It would be a much more | |
945 | maintainable solution to have a MACRO that could be expanded within | |
946 | _bfd_coff_generic_relocate_section that would only be provided for | |
947 | ARM/Thumb builds. It is only the code marked THUMBEXTENSION that | |
948 | is different from the original. */ | |
46686c78 | 949 | |
315dc1f4 | 950 | static boolean |
e1aeb285 NC |
951 | coff_arm_relocate_section (output_bfd, info, input_bfd, input_section, |
952 | contents, relocs, syms, sections) | |
953 | bfd *output_bfd; | |
954 | struct bfd_link_info *info; | |
955 | bfd *input_bfd; | |
956 | asection *input_section; | |
957 | bfd_byte *contents; | |
958 | struct internal_reloc *relocs; | |
959 | struct internal_syment *syms; | |
960 | asection **sections; | |
46686c78 | 961 | { |
e1aeb285 NC |
962 | struct internal_reloc *rel; |
963 | struct internal_reloc *relend; | |
46686c78 | 964 | |
e1aeb285 NC |
965 | rel = relocs; |
966 | relend = rel + input_section->reloc_count; | |
46686c78 | 967 | |
e1aeb285 | 968 | for (; rel < relend; rel++) |
46686c78 | 969 | { |
e1aeb285 NC |
970 | int done = 0; |
971 | long symndx; | |
972 | struct coff_link_hash_entry *h; | |
973 | struct internal_syment *sym; | |
974 | bfd_vma addend; | |
975 | bfd_vma val; | |
976 | reloc_howto_type *howto; | |
977 | bfd_reloc_status_type rstat; | |
978 | bfd_vma h_val; | |
979 | ||
980 | symndx = rel->r_symndx; | |
981 | ||
982 | if (symndx == -1) | |
46686c78 | 983 | { |
e1aeb285 NC |
984 | h = NULL; |
985 | sym = NULL; | |
46686c78 NC |
986 | } |
987 | else | |
e1aeb285 NC |
988 | { |
989 | h = obj_coff_sym_hashes (input_bfd)[symndx]; | |
990 | sym = syms + symndx; | |
991 | } | |
46686c78 | 992 | |
e1aeb285 NC |
993 | /* COFF treats common symbols in one of two ways. Either the |
994 | size of the symbol is included in the section contents, or it | |
995 | is not. We assume that the size is not included, and force | |
996 | the rtype_to_howto function to adjust the addend as needed. */ | |
46686c78 | 997 | |
e1aeb285 NC |
998 | if (sym != NULL && sym->n_scnum != 0) |
999 | addend = - sym->n_value; | |
1000 | else | |
1001 | addend = 0; | |
1002 | ||
1003 | ||
1004 | howto = bfd_coff_rtype_to_howto (input_bfd, input_section, rel, h, | |
1005 | sym, &addend); | |
1006 | if (howto == NULL) | |
1007 | return false; | |
1008 | ||
1009 | /* If we are doing a relocateable link, then we can just ignore | |
1010 | a PC relative reloc that is pcrel_offset. It will already | |
1011 | have the correct value. If this is not a relocateable link, | |
1012 | then we should ignore the symbol value. */ | |
1013 | if (howto->pc_relative && howto->pcrel_offset) | |
1014 | { | |
1015 | if (info->relocateable) | |
1016 | continue; | |
1017 | if (sym != NULL && sym->n_scnum != 0) | |
1018 | addend += sym->n_value; | |
1019 | } | |
1020 | ||
1021 | /* If we are doing a relocateable link, then we can just ignore | |
1022 | a PC relative reloc that is pcrel_offset. It will already | |
1023 | have the correct value. */ | |
1024 | if (info->relocateable | |
1025 | && howto->pc_relative | |
1026 | && howto->pcrel_offset) | |
1027 | continue; | |
1028 | ||
1029 | val = 0; | |
1030 | ||
1031 | if (h == NULL) | |
1032 | { | |
1033 | asection *sec; | |
46686c78 | 1034 | |
e1aeb285 NC |
1035 | if (symndx == -1) |
1036 | { | |
1037 | sec = bfd_abs_section_ptr; | |
1038 | val = 0; | |
1039 | } | |
1040 | else | |
1041 | { | |
1042 | sec = sections[symndx]; | |
1043 | val = (sec->output_section->vma | |
1044 | + sec->output_offset | |
1045 | + sym->n_value | |
1046 | - sec->vma); | |
1047 | } | |
1048 | } | |
1049 | else | |
1050 | { | |
1051 | #if 1 /* THUMBEXTENSION */ | |
1052 | /* We don't output the stubs if we are generating a | |
1053 | relocatable output file, since we may as well leave the | |
1054 | stub generation to the final linker pass. If we fail to | |
1055 | verify that the name is defined, we'll try to build stubs | |
1056 | for an undefined name... */ | |
1057 | if (! info->relocateable | |
1058 | && ( h->root.type == bfd_link_hash_defined | |
1059 | || h->root.type == bfd_link_hash_defweak)) | |
1060 | { | |
1061 | asection * sec; | |
1062 | asection * h_sec = h->root.u.def.section; | |
1063 | const char * name = h->root.root.string; | |
1064 | ||
1065 | /* h locates the symbol referenced in the reloc. */ | |
1066 | h_val = (h->root.u.def.value | |
1067 | + h_sec->output_section->vma | |
1068 | + h_sec->output_offset); | |
1069 | ||
1070 | if (howto->type == ARM_26) | |
1071 | { | |
1072 | if ( h->class == C_THUMBSTATFUNC | |
1073 | || h->class == C_THUMBEXTFUNC) | |
1074 | { | |
1075 | /* Arm code calling a Thumb function */ | |
1076 | signed long int final_disp; | |
1077 | unsigned long int tmp; | |
1078 | long int my_offset; | |
1079 | long int offset; | |
1080 | asection * s = 0; | |
1081 | unsigned long int return_address; | |
1082 | long int ret_offset; | |
1083 | long int disp; | |
1084 | struct coff_link_hash_entry * myh; | |
1085 | ||
1086 | myh = find_arm_glue (info, name, input_bfd); | |
1087 | if (myh == NULL) | |
1088 | return false; | |
1089 | ||
1090 | my_offset = myh->root.u.def.value; | |
1091 | ||
1092 | s = bfd_get_section_by_name (bfd_of_glue_owner, | |
1093 | ARM2THUMB_GLUE_SECTION_NAME); | |
1094 | BFD_ASSERT (s != NULL); | |
1095 | BFD_ASSERT (s->contents != NULL); | |
1096 | ||
1097 | if ((my_offset & 0x01) == 0x01) | |
1098 | { | |
1099 | if (INTERWORK_SET (h_sec->owner) && ! INTERWORK_FLAG (h_sec->owner)) | |
1100 | _bfd_error_handler ("%s: warning: interworking not enabled.", | |
1101 | bfd_get_filename (h_sec->owner)); | |
1102 | ||
1103 | --my_offset; | |
1104 | myh->root.u.def.value = my_offset; | |
1105 | ||
1106 | bfd_put_32 (output_bfd, a2t1_ldr_insn, s->contents + my_offset); | |
1107 | ||
1108 | bfd_put_32 (output_bfd, a2t2_bx_r12_insn, s->contents + my_offset + 4); | |
1109 | ||
1110 | /* It's a thumb address. Add the low order bit. */ | |
1111 | bfd_put_32 (output_bfd, h_val | a2t3_func_addr_insn, s->contents + my_offset + 8); | |
1112 | } | |
1113 | ||
1114 | BFD_ASSERT (my_offset <= global_arm_glue_size); | |
1115 | ||
1116 | tmp = bfd_get_32 (input_bfd, contents + rel->r_vaddr - input_section->vma); | |
1117 | ||
1118 | tmp = tmp & 0xFF000000; | |
1119 | ||
1120 | /* Somehow these are both 4 too far, so subtract 8. */ | |
1121 | ret_offset = | |
1122 | s->output_offset | |
1123 | + my_offset | |
1124 | + s->output_section->vma | |
1125 | - (input_section->output_offset | |
1126 | + input_section->output_section->vma | |
1127 | + rel->r_vaddr) | |
1128 | - 8; | |
1129 | ||
1130 | tmp = tmp | ((ret_offset >> 2) & 0x00FFFFFF); | |
1131 | ||
1132 | bfd_put_32 (output_bfd, tmp, contents + rel->r_vaddr - input_section->vma); | |
1133 | ||
1134 | done = 1; | |
1135 | } | |
1136 | } | |
1137 | ||
1138 | /* Note: We used to check for ARM_THUMB9 and ARM_THUMB12 */ | |
1139 | else if (howto->type == ARM_THUMB23) | |
1140 | { | |
1141 | if ( h->class == C_EXT | |
1142 | || h->class == C_STAT | |
1143 | || h->class == C_LABEL) | |
1144 | { | |
1145 | /* Thumb code calling an ARM function */ | |
1146 | unsigned long int return_address; | |
1147 | signed long int final_disp; | |
1148 | asection * s = 0; | |
1149 | long int my_offset; | |
1150 | unsigned long int tmp; | |
1151 | long int ret_offset; | |
1152 | struct coff_link_hash_entry * myh; | |
1153 | ||
1154 | myh = find_thumb_glue (info, name, input_bfd); | |
1155 | if (myh == NULL) | |
1156 | return false; | |
1157 | ||
1158 | my_offset = myh->root.u.def.value; | |
1159 | ||
1160 | s = bfd_get_section_by_name (bfd_of_glue_owner, | |
1161 | THUMB2ARM_GLUE_SECTION_NAME); | |
1162 | ||
1163 | BFD_ASSERT (s != NULL); | |
1164 | BFD_ASSERT (s->contents != NULL); | |
1165 | ||
1166 | if ((my_offset & 0x01) == 0x01) | |
1167 | { | |
1168 | if (INTERWORK_SET (h_sec->owner) && ! INTERWORK_FLAG (h_sec->owner)) | |
1169 | _bfd_error_handler ("%s: warning: interworking not enabled.", | |
1170 | bfd_get_filename (h_sec->owner)); | |
1171 | ||
1172 | -- my_offset; | |
1173 | myh->root.u.def.value = my_offset; | |
1174 | ||
1175 | bfd_put_16 (output_bfd, t2a1_bx_pc_insn, | |
1176 | s->contents + my_offset); | |
1177 | ||
1178 | bfd_put_16 (output_bfd, t2a2_noop_insn, | |
1179 | s->contents + my_offset + 2); | |
1180 | ||
1181 | ret_offset = | |
1182 | ((signed)h_val) - | |
1183 | ((signed)(s->output_offset | |
1184 | + my_offset | |
1185 | + s->output_section->vma)) | |
1186 | - 12; | |
1187 | ||
1188 | t2a3_b_insn |= ((ret_offset >> 2) & 0x00FFFFFF); | |
1189 | ||
1190 | bfd_put_32 (output_bfd, t2a3_b_insn, s->contents + my_offset + 4); | |
1191 | } | |
1192 | ||
1193 | BFD_ASSERT (my_offset <= global_thumb_glue_size); | |
1194 | ||
1195 | /* Now go back and fix up the original bl insn to point here. */ | |
1196 | ret_offset = | |
1197 | s->output_offset | |
1198 | + my_offset | |
1199 | - (input_section->output_offset | |
1200 | + rel->r_vaddr) | |
1201 | -4; | |
1202 | ||
1203 | tmp = bfd_get_32 (input_bfd, contents + rel->r_vaddr - input_section->vma); | |
1204 | ||
1205 | bfd_put_32 (output_bfd, | |
1206 | insert_thumb_branch (tmp, ret_offset), | |
1207 | contents + rel->r_vaddr - input_section->vma); | |
1208 | ||
1209 | done = 1; | |
1210 | } | |
1211 | } | |
1212 | } | |
1213 | ||
1214 | /* If the relocation type and destination symbol does not | |
1215 | fall into one of the above categories, then we can just | |
1216 | perform a direct link. */ | |
1217 | ||
1218 | if (done) | |
1219 | rstat = bfd_reloc_ok; | |
1220 | else | |
1221 | #endif /* THUMBEXTENSION */ | |
1222 | if ( h->root.type == bfd_link_hash_defined | |
1223 | || h->root.type == bfd_link_hash_defweak) | |
1224 | { | |
1225 | asection *sec; | |
1226 | ||
1227 | sec = h->root.u.def.section; | |
1228 | val = (h->root.u.def.value | |
1229 | + sec->output_section->vma | |
1230 | + sec->output_offset); | |
1231 | } | |
1232 | ||
1233 | else if (! info->relocateable) | |
1234 | { | |
1235 | if (! ((*info->callbacks->undefined_symbol) | |
1236 | (info, h->root.root.string, input_bfd, input_section, | |
1237 | rel->r_vaddr - input_section->vma))) | |
1238 | return false; | |
1239 | } | |
1240 | } | |
1241 | ||
1242 | if (info->base_file) | |
1243 | { | |
1244 | /* Emit a reloc if the backend thinks it needs it. */ | |
1245 | if (sym && pe_data(output_bfd)->in_reloc_p(output_bfd, howto)) | |
1246 | { | |
1247 | /* relocation to a symbol in a section which | |
1248 | isn't absolute - we output the address here | |
1249 | to a file */ | |
1250 | bfd_vma addr = rel->r_vaddr | |
1251 | - input_section->vma | |
1252 | + input_section->output_offset | |
1253 | + input_section->output_section->vma; | |
1254 | if (coff_data(output_bfd)->pe) | |
1255 | addr -= pe_data(output_bfd)->pe_opthdr.ImageBase; | |
1256 | /* FIXME: Shouldn't 4 be sizeof (addr)? */ | |
1257 | fwrite (&addr, 1,4, (FILE *) info->base_file); | |
1258 | } | |
1259 | } | |
1260 | ||
1261 | #if 1 /* THUMBEXTENSION */ | |
1262 | if (done) | |
1263 | ; | |
1264 | /* Only perform this fix during the final link, not a relocatable link. nickc@cygnus.com */ | |
1265 | else if (! info->relocateable | |
1266 | && howto->type == ARM_THUMB23) | |
1267 | { | |
1268 | /* This is pretty much a copy of what the default | |
1269 | _bfd_final_link_relocate and _bfd_relocate_contents | |
1270 | routines do to perform a relocation, with special | |
1271 | processing for the split addressing of the Thumb BL | |
1272 | instruction. Again, it would probably be simpler adding a | |
1273 | ThumbBRANCH23 specific macro expansion into the default | |
1274 | code. */ | |
1275 | ||
1276 | bfd_vma address = rel->r_vaddr - input_section->vma; | |
1277 | ||
1278 | if (address > input_section->_raw_size) | |
1279 | rstat = bfd_reloc_outofrange; | |
1280 | else | |
1281 | { | |
1282 | bfd_vma relocation = val + addend; | |
1283 | int size = bfd_get_reloc_size (howto); | |
1284 | boolean overflow = false; | |
1285 | bfd_byte * location = contents + address; | |
1286 | bfd_vma x = bfd_get_32 (input_bfd, location); | |
1287 | bfd_vma src_mask = 0x007FFFFE; | |
1288 | bfd_signed_vma reloc_signed_max = (1 << (howto->bitsize - 1)) - 1; | |
1289 | bfd_signed_vma reloc_signed_min = ~reloc_signed_max; | |
1290 | bfd_vma check; | |
1291 | bfd_signed_vma signed_check; | |
1292 | bfd_vma add; | |
1293 | bfd_signed_vma signed_add; | |
1294 | ||
1295 | BFD_ASSERT (size == 4); | |
1296 | ||
1297 | /* howto->pc_relative should be TRUE for type 14 BRANCH23 */ | |
1298 | relocation -= (input_section->output_section->vma | |
1299 | + input_section->output_offset); | |
1300 | ||
1301 | /* howto->pcrel_offset should be TRUE for type 14 BRANCH23 */ | |
1302 | relocation -= address; | |
1303 | ||
1304 | /* No need to negate the relocation with BRANCH23. */ | |
1305 | /* howto->complain_on_overflow == complain_overflow_signed for BRANCH23. */ | |
1306 | /* howto->rightshift == 1 */ | |
1307 | /* Drop unwanted bits from the value we are relocating to. */ | |
1308 | ||
1309 | check = relocation >> howto->rightshift; | |
1310 | ||
1311 | /* If this is a signed value, the rightshift just dropped | |
1312 | leading 1 bits (assuming twos complement). */ | |
1313 | if ((bfd_signed_vma) relocation >= 0) | |
1314 | signed_check = check; | |
1315 | else | |
1316 | signed_check = (check | |
1317 | | ((bfd_vma) - 1 | |
1318 | & ~((bfd_vma) - 1 >> howto->rightshift))); | |
1319 | ||
1320 | /* Get the value from the object file. */ | |
1321 | if (bfd_big_endian (input_bfd)) | |
1322 | { | |
1323 | add = (((x) & 0x07ff0000) >> 4) | (((x) & 0x7ff) << 1); | |
1324 | } | |
1325 | else | |
1326 | { | |
1327 | add = ((((x) & 0x7ff) << 12) | (((x) & 0x07ff0000) >> 15)); | |
1328 | } | |
1329 | ||
1330 | /* Get the value from the object file with an appropriate sign. | |
1331 | The expression involving howto->src_mask isolates the upper | |
1332 | bit of src_mask. If that bit is set in the value we are | |
1333 | adding, it is negative, and we subtract out that number times | |
1334 | two. If src_mask includes the highest possible bit, then we | |
1335 | can not get the upper bit, but that does not matter since | |
1336 | signed_add needs no adjustment to become negative in that | |
1337 | case. */ | |
1338 | ||
1339 | signed_add = add; | |
1340 | ||
1341 | if ((add & (((~ src_mask) >> 1) & src_mask)) != 0) | |
1342 | signed_add -= (((~ src_mask) >> 1) & src_mask) << 1; | |
1343 | ||
1344 | /* Add the value from the object file, shifted so that it is a | |
1345 | straight number. */ | |
1346 | /* howto->bitpos == 0 */ | |
1347 | ||
1348 | signed_check += signed_add; | |
1349 | relocation += signed_add; | |
1350 | ||
1351 | BFD_ASSERT (howto->complain_on_overflow == complain_overflow_signed); | |
1352 | ||
1353 | /* Assumes two's complement. */ | |
1354 | if ( signed_check > reloc_signed_max | |
1355 | || signed_check < reloc_signed_min) | |
1356 | overflow = true; | |
1357 | ||
1358 | /* Put RELOCATION into the correct bits: */ | |
1359 | ||
1360 | if (bfd_big_endian (input_bfd)) | |
1361 | { | |
1362 | relocation = (((relocation & 0xffe) >> 1) | ((relocation << 4) & 0x07ff0000)); | |
1363 | } | |
1364 | else | |
1365 | { | |
1366 | relocation = (((relocation & 0xffe) << 15) | ((relocation >> 12) & 0x7ff)); | |
1367 | } | |
1368 | ||
1369 | /* Add RELOCATION to the correct bits of X: */ | |
1370 | x = ((x & ~howto->dst_mask) | relocation); | |
1371 | ||
1372 | /* Put the relocated value back in the object file: */ | |
1373 | bfd_put_32 (input_bfd, x, location); | |
1374 | ||
1375 | rstat = overflow ? bfd_reloc_overflow : bfd_reloc_ok; | |
1376 | } | |
1377 | } | |
1378 | else | |
1379 | #endif /* THUMBEXTENSION */ | |
1380 | rstat = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
1381 | contents, | |
1382 | rel->r_vaddr - input_section->vma, | |
1383 | val, addend); | |
1384 | #if 1 /* THUMBEXTENSION */ | |
1385 | /* FIXME: | |
1386 | Is this the best way to fix up thumb addresses? krk@cygnus.com | |
1387 | Probably not, but it works, and if it works it don't need fixing! nickc@cygnus.com */ | |
1388 | /* Only perform this fix during the final link, not a relocatable link. nickc@cygnus.com */ | |
1389 | if (! info->relocateable | |
1390 | && rel->r_type == ARM_32) | |
1391 | { | |
1392 | /* Determine if we need to set the bottom bit of a relocated address | |
1393 | because the address is the address of a Thumb code symbol. */ | |
1394 | ||
1395 | int patchit = false; | |
1396 | ||
1397 | if (h != NULL | |
1398 | && ( h->class == C_THUMBSTATFUNC | |
1399 | || h->class == C_THUMBEXTFUNC)) | |
1400 | { | |
1401 | patchit = true; | |
1402 | } | |
1403 | else if (sym != NULL | |
1404 | && sym->n_scnum > N_UNDEF) | |
1405 | { | |
1406 | /* No hash entry - use the symbol instead. */ | |
1407 | ||
1408 | if ( sym->n_sclass == C_THUMBSTATFUNC | |
1409 | || sym->n_sclass == C_THUMBEXTFUNC) | |
1410 | patchit = true; | |
1411 | } | |
1412 | ||
1413 | if (patchit) | |
1414 | { | |
1415 | bfd_byte * location = contents + rel->r_vaddr - input_section->vma; | |
1416 | bfd_vma x = bfd_get_32 (input_bfd, location); | |
1417 | ||
1418 | bfd_put_32 (input_bfd, x | 1, location); | |
1419 | } | |
1420 | } | |
1421 | #endif /* THUMBEXTENSION */ | |
1422 | ||
1423 | switch (rstat) | |
1424 | { | |
1425 | default: | |
1426 | abort (); | |
1427 | case bfd_reloc_ok: | |
1428 | break; | |
1429 | case bfd_reloc_outofrange: | |
1430 | (*_bfd_error_handler) | |
1431 | ("%s: bad reloc address 0x%lx in section `%s'", | |
1432 | bfd_get_filename (input_bfd), | |
1433 | (unsigned long) rel->r_vaddr, | |
1434 | bfd_get_section_name (input_bfd, input_section)); | |
1435 | return false; | |
1436 | case bfd_reloc_overflow: | |
1437 | { | |
1438 | const char *name; | |
1439 | char buf[SYMNMLEN + 1]; | |
1440 | ||
1441 | if (symndx == -1) | |
1442 | name = "*ABS*"; | |
1443 | else if (h != NULL) | |
1444 | name = h->root.root.string; | |
1445 | else | |
1446 | { | |
1447 | name = _bfd_coff_internal_syment_name (input_bfd, sym, buf); | |
1448 | if (name == NULL) | |
1449 | return false; | |
1450 | } | |
1451 | ||
1452 | if (! ((*info->callbacks->reloc_overflow) | |
1453 | (info, name, howto->name, (bfd_vma) 0, input_bfd, | |
1454 | input_section, rel->r_vaddr - input_section->vma))) | |
1455 | return false; | |
1456 | } | |
1457 | } | |
1458 | } | |
1459 | ||
1460 | return true; | |
1461 | } | |
1462 | ||
cc37e39a | 1463 | #ifndef COFF_WITH_PE |
33d5d351 | 1464 | boolean |
e1aeb285 NC |
1465 | arm_allocate_interworking_sections (info) |
1466 | struct bfd_link_info *info; | |
1467 | { | |
1468 | asection *s; | |
1469 | bfd_byte *foo; | |
1470 | static char test_char = '1'; | |
1471 | ||
1472 | if ( global_arm_glue_size != 0 ) | |
1473 | { | |
1474 | BFD_ASSERT (bfd_of_glue_owner != NULL); | |
1475 | ||
1476 | s = bfd_get_section_by_name (bfd_of_glue_owner, ARM2THUMB_GLUE_SECTION_NAME); | |
1477 | ||
1478 | BFD_ASSERT (s != NULL); | |
1479 | ||
1480 | foo = (bfd_byte *) bfd_alloc(bfd_of_glue_owner, global_arm_glue_size); | |
1481 | memset(foo, test_char, global_arm_glue_size); | |
1482 | ||
1483 | s->_raw_size = s->_cooked_size = global_arm_glue_size; | |
1484 | s->contents = foo; | |
1485 | } | |
1486 | ||
1487 | if (global_thumb_glue_size != 0) | |
1488 | { | |
1489 | BFD_ASSERT (bfd_of_glue_owner != NULL); | |
1490 | ||
1491 | s = bfd_get_section_by_name (bfd_of_glue_owner, THUMB2ARM_GLUE_SECTION_NAME); | |
1492 | ||
1493 | BFD_ASSERT (s != NULL); | |
1494 | ||
1495 | foo = (bfd_byte *) bfd_alloc(bfd_of_glue_owner, global_thumb_glue_size); | |
1496 | memset(foo, test_char, global_thumb_glue_size); | |
1497 | ||
1498 | s->_raw_size = s->_cooked_size = global_thumb_glue_size; | |
1499 | s->contents = foo; | |
1500 | } | |
1501 | ||
1502 | return true; | |
1503 | } | |
1504 | ||
1505 | static void | |
1506 | record_arm_to_thumb_glue (info, h) | |
1507 | struct bfd_link_info * info; | |
1508 | struct coff_link_hash_entry * h; | |
1509 | { | |
1510 | const char * name = h->root.root.string; | |
1511 | register asection * s; | |
1512 | char * tmp_name; | |
1513 | struct coff_link_hash_entry * myh; | |
1514 | ||
1515 | ||
1516 | BFD_ASSERT (bfd_of_glue_owner != NULL); | |
1517 | ||
1518 | s = bfd_get_section_by_name (bfd_of_glue_owner, | |
1519 | ARM2THUMB_GLUE_SECTION_NAME); | |
1520 | ||
1521 | BFD_ASSERT (s != NULL); | |
1522 | ||
1523 | tmp_name = ((char *) | |
1524 | bfd_malloc (strlen (name) + strlen (ARM2THUMB_GLUE_ENTRY_NAME))); | |
1525 | ||
1526 | BFD_ASSERT (tmp_name); | |
1527 | ||
1528 | sprintf (tmp_name, ARM2THUMB_GLUE_ENTRY_NAME, name); | |
1529 | ||
1530 | myh = coff_link_hash_lookup (coff_hash_table (info), | |
1531 | tmp_name, | |
1532 | false, false, true); | |
1533 | ||
1534 | if (myh != NULL) | |
1535 | { | |
1536 | free (tmp_name); | |
1537 | return; /* we've already seen this guy */ | |
1538 | } | |
1539 | ||
1540 | ||
1541 | /* The only trick here is using global_arm_glue_size as the value. Even | |
1542 | though the section isn't allocated yet, this is where we will be putting | |
1543 | it. */ | |
1544 | ||
1545 | bfd_coff_link_add_one_symbol (info, bfd_of_glue_owner, tmp_name, | |
1546 | BSF_EXPORT | BSF_GLOBAL, | |
1547 | s, global_arm_glue_size + 1, | |
1548 | NULL, true, false, | |
1549 | (struct bfd_link_hash_entry **) & myh); | |
1550 | ||
1551 | global_arm_glue_size += ARM2THUMB_GLUE_SIZE; | |
1552 | ||
1553 | free (tmp_name); | |
1554 | ||
1555 | return; | |
1556 | } | |
1557 | ||
1558 | static void | |
1559 | record_thumb_to_arm_glue (info, h) | |
1560 | struct bfd_link_info * info; | |
1561 | struct coff_link_hash_entry * h; | |
1562 | { | |
1563 | const char * name = h->root.root.string; | |
1564 | register asection * s; | |
1565 | char * tmp_name; | |
1566 | struct coff_link_hash_entry * myh; | |
1567 | ||
1568 | ||
1569 | BFD_ASSERT (bfd_of_glue_owner != NULL); | |
1570 | ||
1571 | s = bfd_get_section_by_name (bfd_of_glue_owner, THUMB2ARM_GLUE_SECTION_NAME); | |
1572 | ||
1573 | BFD_ASSERT (s != NULL); | |
1574 | ||
1575 | tmp_name = (char *) bfd_malloc (strlen (name) + strlen (THUMB2ARM_GLUE_ENTRY_NAME)); | |
1576 | ||
1577 | BFD_ASSERT (tmp_name); | |
1578 | ||
1579 | sprintf (tmp_name, THUMB2ARM_GLUE_ENTRY_NAME, name); | |
1580 | ||
1581 | myh = coff_link_hash_lookup (coff_hash_table (info), | |
1582 | tmp_name, | |
1583 | false, false, true); | |
1584 | ||
1585 | if (myh != NULL) | |
1586 | { | |
1587 | free (tmp_name); | |
1588 | return; /* we've already seen this guy */ | |
1589 | } | |
1590 | ||
1591 | bfd_coff_link_add_one_symbol (info, bfd_of_glue_owner, tmp_name, | |
1592 | BSF_LOCAL, s, global_thumb_glue_size + 1, | |
1593 | NULL, true, false, | |
1594 | (struct bfd_link_hash_entry **) & myh); | |
1595 | ||
1596 | /* if we mark it 'thumb', the disassembler will do a better job */ | |
1597 | myh->class = C_THUMBEXTFUNC; | |
1598 | ||
1599 | free (tmp_name); | |
1600 | ||
1601 | #define CHANGE_TO_ARM "__%s_change_to_arm" | |
1602 | ||
1603 | tmp_name = ((char *) | |
1604 | bfd_malloc (strlen (name) + strlen (CHANGE_TO_ARM))); | |
1605 | ||
1606 | BFD_ASSERT (tmp_name); | |
1607 | ||
1608 | sprintf (tmp_name, CHANGE_TO_ARM, name); | |
1609 | ||
1610 | myh = NULL; | |
1611 | ||
1612 | /* now allocate another symbol to switch back to arm mode */ | |
1613 | bfd_coff_link_add_one_symbol (info, bfd_of_glue_owner, tmp_name, | |
1614 | BSF_LOCAL, s, global_thumb_glue_size + 4, | |
1615 | NULL, true, false, | |
1616 | (struct bfd_link_hash_entry **) & myh); | |
1617 | ||
1618 | free (tmp_name); | |
1619 | ||
1620 | global_thumb_glue_size += THUMB2ARM_GLUE_SIZE; | |
1621 | ||
1622 | return; | |
1623 | } | |
1624 | ||
33d5d351 | 1625 | boolean |
e1aeb285 NC |
1626 | arm_process_before_allocation (abfd, info) |
1627 | bfd * abfd; | |
1628 | struct bfd_link_info * info; | |
1629 | { | |
1630 | asection * sec; | |
1631 | ||
1632 | /* If we are only performing a partial link do not bother | |
1633 | to construct any glue. */ | |
1634 | if (info->relocateable) | |
1635 | return true; | |
1636 | ||
1637 | /* Here we have a bfd that is to be included on the link. We have a hook | |
1638 | to do reloc rummaging, before section sizes are nailed down. */ | |
1639 | ||
1640 | _bfd_coff_get_external_symbols (abfd); | |
1641 | ||
1642 | /* Rummage around all the relocs and map the glue vectors. */ | |
1643 | sec = abfd->sections; | |
1644 | ||
1645 | if (sec == NULL) | |
1646 | return true; | |
1647 | ||
1648 | for (; sec != NULL; sec = sec->next) | |
1649 | { | |
1650 | struct internal_reloc * i; | |
1651 | struct internal_reloc * rel; | |
1652 | ||
1653 | if (sec->reloc_count == 0) | |
1654 | continue; | |
1655 | ||
1656 | /* Load the relocs. */ | |
1657 | /* FIXME: there may be a storage leak here. */ | |
1658 | ||
1659 | i = _bfd_coff_read_internal_relocs (abfd, sec, 1, 0, 0, 0); | |
1660 | ||
1661 | BFD_ASSERT (i != 0); | |
1662 | ||
1663 | for (rel = i; rel < i + sec->reloc_count; ++rel) | |
1664 | { | |
1665 | unsigned short r_type = rel->r_type; | |
1666 | long symndx; | |
1667 | struct coff_link_hash_entry * h; | |
1668 | ||
1669 | symndx = rel->r_symndx; | |
1670 | ||
1671 | /* If the relocation is not against a symbol it cannot concern us. */ | |
1672 | if (symndx == -1) | |
1673 | continue; | |
1674 | ||
1675 | h = obj_coff_sym_hashes (abfd)[symndx]; | |
1676 | ||
1677 | /* If the relocation is against a static symbol it must be within | |
1678 | the current section and so canot be a cross ARM/Thumb relocation. */ | |
1679 | if (h == NULL) | |
1680 | continue; | |
1681 | ||
1682 | switch (r_type) | |
1683 | { | |
1684 | case ARM_26: | |
1685 | /* This one is a call from arm code. We need to look up | |
1686 | the target of the call. If it is a thumb target, we | |
1687 | insert glue. */ | |
1688 | ||
1689 | if (h->class == C_THUMBEXTFUNC) | |
1690 | { | |
1691 | record_arm_to_thumb_glue (info, h); | |
1692 | } | |
1693 | break; | |
1694 | ||
1695 | case ARM_THUMB23: | |
1696 | /* This one is a call from thumb code. We used to look | |
1697 | for ARM_THUMB9 and ARM_THUMB12 as well. We need to look | |
1698 | up the target of the call. If it is an arm target, we | |
1699 | insert glue. */ | |
1700 | ||
1701 | switch (h->class) | |
1702 | { | |
1703 | case C_EXT: | |
1704 | case C_STAT: | |
1705 | case C_LABEL: | |
1706 | record_thumb_to_arm_glue (info, h); | |
1707 | break; | |
1708 | default: | |
1709 | ; | |
1710 | } | |
1711 | break; | |
1712 | ||
1713 | default: | |
1714 | break; | |
1715 | } | |
1716 | } | |
1717 | } | |
1718 | ||
1719 | return true; | |
1720 | } | |
33d5d351 | 1721 | #endif /* not COFF_WITH_PE */ |
e1aeb285 NC |
1722 | |
1723 | #define coff_relocate_section coff_arm_relocate_section | |
1724 | ||
1725 | /* When doing a relocateable link, we want to convert ARM26 relocs | |
1726 | into ARM26D relocs. */ | |
1727 | ||
1728 | static boolean | |
1729 | coff_arm_adjust_symndx (obfd, info, ibfd, sec, irel, adjustedp) | |
1730 | bfd *obfd; | |
1731 | struct bfd_link_info *info; | |
1732 | bfd *ibfd; | |
1733 | asection *sec; | |
1734 | struct internal_reloc *irel; | |
1735 | boolean *adjustedp; | |
1736 | { | |
1737 | if (irel->r_type == 3) | |
1738 | { | |
1739 | struct coff_link_hash_entry *h; | |
1740 | ||
1741 | h = obj_coff_sym_hashes (ibfd)[irel->r_symndx]; | |
1742 | if (h != NULL | |
1743 | && (h->root.type == bfd_link_hash_defined | |
1744 | || h->root.type == bfd_link_hash_defweak) | |
1745 | && h->root.u.def.section->output_section == sec->output_section) | |
1746 | irel->r_type = 7; | |
1747 | } | |
1748 | *adjustedp = false; | |
1749 | return true; | |
1750 | } | |
1751 | ||
f5ddda0f | 1752 | #ifndef COFF_WITH_PE |
e1aeb285 NC |
1753 | |
1754 | /* Called when merging the private data areas of two BFDs. | |
1755 | This is important as it allows us to detect if we are | |
1756 | attempting to merge binaries compiled for different ARM | |
1757 | targets, eg different CPUs or differents APCS's. */ | |
1758 | ||
1759 | static boolean | |
1760 | coff_arm_bfd_merge_private_bfd_data (ibfd, obfd) | |
1761 | bfd * ibfd; | |
1762 | bfd * obfd; | |
1763 | { | |
1764 | BFD_ASSERT (ibfd != NULL && obfd != NULL); | |
1765 | ||
1766 | if (ibfd == obfd) | |
1767 | return true; | |
1768 | ||
f5ddda0f NC |
1769 | /* If the two formats are different we cannot merge anything. |
1770 | This is not an error, since it is permissable to change the | |
1771 | input and output formats. */ | |
e1aeb285 | 1772 | if (ibfd->xvec != obfd->xvec) |
f5ddda0f NC |
1773 | return true; |
1774 | ||
e1aeb285 NC |
1775 | /* Verify that the APCS is the same for the two BFDs */ |
1776 | if (APCS_SET (ibfd)) | |
1777 | { | |
1778 | if (APCS_SET (obfd)) | |
1779 | { | |
1780 | /* If the src and dest have different APCS flag bits set, fail. */ | |
1781 | if (APCS_26_FLAG (obfd) != APCS_26_FLAG (ibfd)) | |
1782 | { | |
1783 | _bfd_error_handler | |
1784 | ("%s: ERROR: compiled for APCS-%d whereas target %s uses APCS-%d", | |
1785 | bfd_get_filename (ibfd), APCS_26_FLAG (ibfd) ? 26 : 32, | |
1786 | bfd_get_filename (obfd), APCS_26_FLAG (obfd) ? 26 : 32 | |
1787 | ); | |
1788 | ||
1789 | bfd_set_error (bfd_error_wrong_format); | |
1790 | return false; | |
1791 | } | |
1792 | ||
1793 | if (APCS_FLOAT_FLAG (obfd) != APCS_FLOAT_FLAG (ibfd)) | |
1794 | { | |
1795 | _bfd_error_handler | |
1796 | ("%s: ERROR: passes floats in %s registers whereas target %s uses %s registers", | |
1797 | bfd_get_filename (ibfd), APCS_FLOAT_FLAG (ibfd) ? "float" : "integer", | |
1798 | bfd_get_filename (obfd), APCS_FLOAT_FLAG (obfd) ? "float" : "integer" | |
1799 | ); | |
1800 | ||
1801 | bfd_set_error (bfd_error_wrong_format); | |
1802 | return false; | |
1803 | } | |
1804 | ||
1805 | if (PIC_FLAG (obfd) != PIC_FLAG (ibfd)) | |
1806 | { | |
1807 | _bfd_error_handler | |
1808 | ("%s: ERROR: compiled as %s code, whereas target %s is %s", | |
1809 | bfd_get_filename (ibfd), PIC_FLAG (ibfd) ? "position independent" : "absoluste position", | |
1810 | bfd_get_filename (obfd), PIC_FLAG (obfd) ? "position independent" : "absoluste position" | |
1811 | ); | |
1812 | ||
1813 | bfd_set_error (bfd_error_wrong_format); | |
1814 | return false; | |
1815 | } | |
1816 | } | |
1817 | else | |
1818 | { | |
1819 | SET_APCS_FLAGS (obfd, APCS_26_FLAG (ibfd) | APCS_FLOAT_FLAG (ibfd) | PIC_FLAG (ibfd)); | |
1820 | ||
1821 | /* Set up the arch and fields as well as these are probably wrong. */ | |
1822 | bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd)); | |
1823 | } | |
1824 | } | |
1825 | ||
1826 | /* Check the interworking support. */ | |
1827 | if (INTERWORK_SET (ibfd)) | |
1828 | { | |
1829 | if (INTERWORK_SET (obfd)) | |
1830 | { | |
1831 | /* If the src and dest differ in their interworking issue a warning. */ | |
1832 | if (INTERWORK_FLAG (obfd) != INTERWORK_FLAG (ibfd)) | |
1833 | { | |
1834 | _bfd_error_handler | |
1835 | ("Warning: input file %s %s interworking, whereas %s does%s", | |
1836 | bfd_get_filename (ibfd), | |
1837 | INTERWORK_FLAG (ibfd) ? "supports" : "does not support", | |
1838 | bfd_get_filename (obfd), | |
1839 | INTERWORK_FLAG (obfd) ? "." : " not." | |
1840 | ); | |
1841 | } | |
1842 | } | |
1843 | else | |
1844 | { | |
1845 | SET_INTERWORK_FLAG (obfd, INTERWORK_FLAG (ibfd)); | |
1846 | } | |
1847 | } | |
1848 | ||
1849 | return true; | |
1850 | } | |
1851 | ||
1852 | ||
1853 | /* Display the flags field */ | |
1854 | ||
1855 | static boolean | |
1856 | coff_arm_bfd_print_private_bfd_data (abfd, ptr) | |
1857 | bfd * abfd; | |
1858 | PTR ptr; | |
1859 | { | |
1860 | FILE * file = (FILE *) ptr; | |
1861 | ||
1862 | BFD_ASSERT (abfd != NULL && ptr != NULL) | |
1863 | ||
f5ddda0f | 1864 | fprintf (file, "private flags = %x", coff_data (abfd)->flags); |
e1aeb285 NC |
1865 | |
1866 | if (APCS_SET (abfd)) | |
1867 | fprintf (file, ": [APCS-%d] [floats passed in %s registers] [%s]", | |
1868 | APCS_26_FLAG (abfd) ? 26 : 32, | |
1869 | APCS_FLOAT_FLAG (abfd) ? "float" : "integer", | |
1870 | PIC_FLAG (abfd) ? "position independent" : "absolute position" | |
1871 | ); | |
1872 | ||
1873 | if (INTERWORK_SET (abfd)) | |
1874 | fprintf (file, ": [interworking %ssupported]", | |
1875 | INTERWORK_FLAG (abfd) ? "" : "not " ); | |
1876 | ||
1877 | fputc ('\n', file); | |
1878 | ||
1879 | return true; | |
1880 | } | |
1881 | ||
1882 | ||
1883 | /* Copies the given flags into the coff_tdata.flags field. | |
1884 | Typically these flags come from the f_flags[] field of | |
1885 | the COFF filehdr structure, which contains important, | |
1886 | target specific information. */ | |
1887 | ||
1888 | static boolean | |
1889 | coff_arm_bfd_set_private_flags (abfd, flags) | |
1890 | bfd * abfd; | |
1891 | flagword flags; | |
1892 | { | |
1893 | int flag; | |
1894 | ||
1895 | BFD_ASSERT (abfd != NULL); | |
1896 | ||
1897 | flag = (flags & F_APCS26) ? F_APCS_26 : 0; | |
1898 | ||
1899 | /* Make sure that the APCS field has not been initialised to the opposite value. */ | |
1900 | if (APCS_SET (abfd) | |
1901 | && ( (APCS_26_FLAG (abfd) != flag) | |
1902 | || (APCS_FLOAT_FLAG (abfd) != (flags & F_APCS_FLOAT)) | |
1903 | || (PIC_FLAG (abfd) != (flags & F_PIC)) | |
1904 | )) | |
1905 | return false; | |
1906 | ||
1907 | flag |= (flags & (F_APCS_FLOAT | F_PIC)); | |
1908 | ||
1909 | SET_APCS_FLAGS (abfd, flag); | |
1910 | ||
1911 | flag = (flags & F_INTERWORK); | |
1912 | ||
1913 | /* If either the flags or the BFD do support interworking then do not set the interworking flag. */ | |
1914 | if (INTERWORK_SET (abfd) && (INTERWORK_FLAG (abfd) != flag)) | |
1915 | flag = 0; | |
1916 | ||
1917 | SET_INTERWORK_FLAG (abfd, flag); | |
1918 | ||
1919 | return true; | |
1920 | } | |
1921 | ||
1922 | ||
1923 | /* Copy the important parts of the target specific data | |
1924 | from one instance of a BFD to another. */ | |
1925 | ||
1926 | static boolean | |
1927 | coff_arm_bfd_copy_private_bfd_data (src, dest) | |
1928 | bfd * src; | |
1929 | bfd * dest; | |
1930 | { | |
1931 | BFD_ASSERT (src != NULL && dest != NULL); | |
1932 | ||
1933 | if (src == dest) | |
1934 | return true; | |
1935 | ||
1936 | /* If the destination is not in the same format as the source, do not do the copy. */ | |
1937 | if (src->xvec != dest->xvec) | |
1938 | return true; | |
1939 | ||
1940 | /* copy the flags field */ | |
1941 | if (APCS_SET (src)) | |
1942 | { | |
1943 | if (APCS_SET (dest)) | |
1944 | { | |
1945 | /* If the src and dest have different APCS flag bits set, fail. */ | |
1946 | if (APCS_26_FLAG (dest) != APCS_26_FLAG (src)) | |
1947 | return false; | |
1948 | ||
1949 | if (APCS_FLOAT_FLAG (dest) != APCS_FLOAT_FLAG (src)) | |
1950 | return false; | |
1951 | ||
1952 | if (PIC_FLAG (dest) != PIC_FLAG (src)) | |
1953 | return false; | |
1954 | } | |
1955 | else | |
1956 | SET_APCS_FLAGS (dest, APCS_26_FLAG (src) | APCS_FLOAT_FLAG (src) | PIC_FLAG (src)); | |
1957 | } | |
1958 | ||
1959 | if (INTERWORK_SET (src)) | |
1960 | { | |
1961 | if (INTERWORK_SET (dest)) | |
1962 | { | |
1963 | /* If the src and dest have different interworking flags then turn off the interworking bit. */ | |
1964 | if (INTERWORK_FLAG (dest) != INTERWORK_FLAG (src)) | |
1965 | SET_INTERWORK_FLAG (dest, 0); | |
1966 | } | |
1967 | else | |
1968 | { | |
1969 | SET_INTERWORK_FLAG (dest, INTERWORK_FLAG (src)); | |
1970 | } | |
1971 | } | |
1972 | ||
1973 | return true; | |
1974 | } | |
f5ddda0f | 1975 | #endif /* not COFF_WITH_PE */ |
e1aeb285 NC |
1976 | |
1977 | /* Note: the definitions here of LOCAL_LABEL_PREFIX and USER_LABEL_PREIFX | |
1978 | *must* match the definitions on gcc/config/arm/semi.h. */ | |
1979 | #define LOCAL_LABEL_PREFIX "." | |
09888f15 NC |
1980 | #define USER_LABEL_PREFIX "_" |
1981 | /* #define USER_LABEL_PREFIX "" */ | |
e1aeb285 NC |
1982 | |
1983 | static boolean | |
1984 | coff_arm_is_local_label_name (abfd, name) | |
1985 | bfd * abfd; | |
1986 | const char * name; | |
1987 | { | |
1988 | #ifdef LOCAL_LABEL_PREFIX | |
1989 | /* If there is a prefix for local labels then look for this. | |
1990 | If the prefix exists, but it is empty, then ignore the test. */ | |
1991 | ||
1992 | if (LOCAL_LABEL_PREFIX[0] != 0) | |
1993 | { | |
1994 | if (strncmp (name, LOCAL_LABEL_PREFIX, strlen (LOCAL_LABEL_PREFIX)) == 0) | |
1995 | return true; | |
1996 | } | |
1997 | #endif | |
1998 | #ifdef USER_LABEL_PREFIX | |
1999 | if (USER_LABEL_PREFIX[0] != 0) | |
2000 | { | |
2001 | if (strncmp (name, USER_LABEL_PREFIX, strlen (USER_LABEL_PREFIX)) == 0) | |
2002 | return false; | |
2003 | } | |
2004 | #endif | |
2005 | ||
2006 | /* devo/gcc/config/dbxcoff.h defines ASM_OUTPUT_SOURCE_LINE to generate local line numbers as .LM<number>, so treat these as local. */ | |
2007 | ||
2008 | switch (name[0]) | |
2009 | { | |
2010 | case 'L': return true; | |
2011 | case '.': return (name[1] == 'L' && name[2] == 'M') ? true : false; | |
2012 | default: return false; /* Cannot make our minds up - default to false so that it will not be stripped by accident. */ | |
2013 | } | |
2014 | } | |
2015 | ||
2016 | #define coff_bfd_is_local_label_name coff_arm_is_local_label_name | |
2017 | #define coff_adjust_symndx coff_arm_adjust_symndx | |
f5ddda0f | 2018 | #ifndef COFF_WITH_PE |
e1aeb285 | 2019 | #define coff_bfd_final_link coff_arm_bfd_final_link |
46686c78 NC |
2020 | #define coff_bfd_merge_private_bfd_data coff_arm_bfd_merge_private_bfd_data |
2021 | #define coff_bfd_print_private_bfd_data coff_arm_bfd_print_private_bfd_data | |
2022 | #define coff_bfd_set_private_flags coff_arm_bfd_set_private_flags | |
2023 | #define coff_bfd_copy_private_bfd_data coff_arm_bfd_copy_private_bfd_data | |
f5ddda0f | 2024 | #endif |
a5655244 | 2025 | |
943fbd5b KR |
2026 | #include "coffcode.h" |
2027 | ||
e1aeb285 NC |
2028 | static boolean |
2029 | arm_do_last (abfd) | |
2030 | bfd * abfd; | |
2031 | { | |
2032 | if (abfd == bfd_of_glue_owner) | |
2033 | return true; | |
2034 | else | |
2035 | return false; | |
2036 | } | |
2037 | ||
2038 | static bfd * | |
2039 | arm_get_last() | |
2040 | { | |
2041 | return bfd_of_glue_owner; | |
2042 | } | |
2043 | ||
2044 | /* This piece of machinery exists only to guarantee that the bfd that holds | |
2045 | the glue section is written last. | |
2046 | ||
2047 | This does depend on bfd_make_section attaching a new section to the | |
2048 | end of the section list for the bfd. | |
2049 | ||
2050 | This is otherwise intended to be functionally the same as | |
2051 | cofflink.c:_bfd_coff_final_link(). It is specifically different only | |
2052 | where the ARM_HACKS macro modifies the code. It is left in as a | |
2053 | precise form of comment. krk@cygnus.com */ | |
2054 | ||
2055 | #define ARM_HACKS | |
2056 | ||
e1aeb285 NC |
2057 | /* Do the final link step. */ |
2058 | ||
f76d3101 | 2059 | static boolean |
e1aeb285 NC |
2060 | coff_arm_bfd_final_link (abfd, info) |
2061 | bfd *abfd; | |
2062 | struct bfd_link_info *info; | |
2063 | { | |
2064 | bfd_size_type symesz; | |
2065 | struct coff_final_link_info finfo; | |
2066 | boolean debug_merge_allocated; | |
2067 | asection *o; | |
2068 | struct bfd_link_order *p; | |
2069 | size_t max_sym_count; | |
2070 | size_t max_lineno_count; | |
2071 | size_t max_reloc_count; | |
2072 | size_t max_output_reloc_count; | |
2073 | size_t max_contents_size; | |
2074 | file_ptr rel_filepos; | |
2075 | unsigned int relsz; | |
2076 | file_ptr line_filepos; | |
2077 | unsigned int linesz; | |
2078 | bfd *sub; | |
2079 | bfd_byte *external_relocs = NULL; | |
2080 | char strbuf[STRING_SIZE_SIZE]; | |
2081 | ||
2082 | symesz = bfd_coff_symesz (abfd); | |
2083 | ||
2084 | finfo.info = info; | |
2085 | finfo.output_bfd = abfd; | |
2086 | finfo.strtab = NULL; | |
2087 | finfo.section_info = NULL; | |
2088 | finfo.last_file_index = -1; | |
2089 | finfo.last_bf_index = -1; | |
2090 | finfo.internal_syms = NULL; | |
2091 | finfo.sec_ptrs = NULL; | |
2092 | finfo.sym_indices = NULL; | |
2093 | finfo.outsyms = NULL; | |
2094 | finfo.linenos = NULL; | |
2095 | finfo.contents = NULL; | |
2096 | finfo.external_relocs = NULL; | |
2097 | finfo.internal_relocs = NULL; | |
2098 | debug_merge_allocated = false; | |
2099 | ||
2100 | coff_data (abfd)->link_info = info; | |
2101 | ||
2102 | finfo.strtab = _bfd_stringtab_init (); | |
2103 | if (finfo.strtab == NULL) | |
2104 | goto error_return; | |
2105 | ||
2106 | if (! coff_debug_merge_hash_table_init (&finfo.debug_merge)) | |
2107 | goto error_return; | |
2108 | debug_merge_allocated = true; | |
2109 | ||
2110 | /* Compute the file positions for all the sections. */ | |
2111 | if (! abfd->output_has_begun) | |
2112 | bfd_coff_compute_section_file_positions (abfd); | |
2113 | ||
2114 | /* Count the line numbers and relocation entries required for the | |
2115 | output file. Set the file positions for the relocs. */ | |
2116 | rel_filepos = obj_relocbase (abfd); | |
2117 | relsz = bfd_coff_relsz (abfd); | |
2118 | max_contents_size = 0; | |
2119 | max_lineno_count = 0; | |
2120 | max_reloc_count = 0; | |
2121 | ||
2122 | for (o = abfd->sections; o != NULL; o = o->next) | |
2123 | { | |
2124 | o->reloc_count = 0; | |
2125 | o->lineno_count = 0; | |
2126 | for (p = o->link_order_head; p != NULL; p = p->next) | |
2127 | { | |
2128 | ||
2129 | if (p->type == bfd_indirect_link_order) | |
2130 | { | |
2131 | asection *sec; | |
2132 | ||
2133 | sec = p->u.indirect.section; | |
2134 | ||
2135 | /* Mark all sections which are to be included in the | |
2136 | link. This will normally be every section. We need | |
2137 | to do this so that we can identify any sections which | |
2138 | the linker has decided to not include. */ | |
2139 | sec->linker_mark = true; | |
2140 | ||
2141 | if (info->strip == strip_none | |
2142 | || info->strip == strip_some) | |
2143 | o->lineno_count += sec->lineno_count; | |
2144 | ||
2145 | if (info->relocateable) | |
2146 | o->reloc_count += sec->reloc_count; | |
2147 | ||
2148 | if (sec->_raw_size > max_contents_size) | |
2149 | max_contents_size = sec->_raw_size; | |
2150 | if (sec->lineno_count > max_lineno_count) | |
2151 | max_lineno_count = sec->lineno_count; | |
2152 | if (sec->reloc_count > max_reloc_count) | |
2153 | max_reloc_count = sec->reloc_count; | |
2154 | } | |
2155 | else if (info->relocateable | |
2156 | && (p->type == bfd_section_reloc_link_order | |
2157 | || p->type == bfd_symbol_reloc_link_order)) | |
2158 | ++o->reloc_count; | |
2159 | } | |
2160 | if (o->reloc_count == 0) | |
2161 | o->rel_filepos = 0; | |
2162 | else | |
2163 | { | |
2164 | o->flags |= SEC_RELOC; | |
2165 | o->rel_filepos = rel_filepos; | |
2166 | rel_filepos += o->reloc_count * relsz; | |
2167 | } | |
2168 | } | |
2169 | ||
2170 | /* If doing a relocateable link, allocate space for the pointers we | |
2171 | need to keep. */ | |
2172 | if (info->relocateable) | |
2173 | { | |
2174 | unsigned int i; | |
2175 | ||
2176 | /* We use section_count + 1, rather than section_count, because | |
2177 | the target_index fields are 1 based. */ | |
2178 | finfo.section_info = | |
2179 | ((struct coff_link_section_info *) | |
2180 | bfd_malloc ((abfd->section_count + 1) | |
2181 | * sizeof (struct coff_link_section_info))); | |
2182 | if (finfo.section_info == NULL) | |
2183 | goto error_return; | |
2184 | for (i = 0; i <= abfd->section_count; i++) | |
2185 | { | |
2186 | finfo.section_info[i].relocs = NULL; | |
2187 | finfo.section_info[i].rel_hashes = NULL; | |
2188 | } | |
2189 | } | |
2190 | ||
2191 | /* We now know the size of the relocs, so we can determine the file | |
2192 | positions of the line numbers. */ | |
2193 | line_filepos = rel_filepos; | |
2194 | linesz = bfd_coff_linesz (abfd); | |
2195 | max_output_reloc_count = 0; | |
2196 | for (o = abfd->sections; o != NULL; o = o->next) | |
2197 | { | |
2198 | if (o->lineno_count == 0) | |
2199 | o->line_filepos = 0; | |
2200 | else | |
2201 | { | |
2202 | o->line_filepos = line_filepos; | |
2203 | line_filepos += o->lineno_count * linesz; | |
2204 | } | |
2205 | ||
2206 | if (o->reloc_count != 0) | |
2207 | { | |
2208 | /* We don't know the indices of global symbols until we have | |
2209 | written out all the local symbols. For each section in | |
2210 | the output file, we keep an array of pointers to hash | |
2211 | table entries. Each entry in the array corresponds to a | |
2212 | reloc. When we find a reloc against a global symbol, we | |
2213 | set the corresponding entry in this array so that we can | |
2214 | fix up the symbol index after we have written out all the | |
2215 | local symbols. | |
2216 | ||
2217 | Because of this problem, we also keep the relocs in | |
2218 | memory until the end of the link. This wastes memory, | |
2219 | but only when doing a relocateable link, which is not the | |
2220 | common case. */ | |
2221 | BFD_ASSERT (info->relocateable); | |
2222 | finfo.section_info[o->target_index].relocs = | |
2223 | ((struct internal_reloc *) | |
2224 | bfd_malloc (o->reloc_count * sizeof (struct internal_reloc))); | |
2225 | finfo.section_info[o->target_index].rel_hashes = | |
2226 | ((struct coff_link_hash_entry **) | |
2227 | bfd_malloc (o->reloc_count | |
2228 | * sizeof (struct coff_link_hash_entry *))); | |
2229 | if (finfo.section_info[o->target_index].relocs == NULL | |
2230 | || finfo.section_info[o->target_index].rel_hashes == NULL) | |
2231 | goto error_return; | |
2232 | ||
2233 | if (o->reloc_count > max_output_reloc_count) | |
2234 | max_output_reloc_count = o->reloc_count; | |
2235 | } | |
2236 | ||
2237 | /* Reset the reloc and lineno counts, so that we can use them to | |
2238 | count the number of entries we have output so far. */ | |
2239 | o->reloc_count = 0; | |
2240 | o->lineno_count = 0; | |
2241 | } | |
2242 | ||
2243 | obj_sym_filepos (abfd) = line_filepos; | |
2244 | ||
2245 | /* Figure out the largest number of symbols in an input BFD. Take | |
2246 | the opportunity to clear the output_has_begun fields of all the | |
2247 | input BFD's. */ | |
2248 | max_sym_count = 0; | |
2249 | for (sub = info->input_bfds; sub != NULL; sub = sub->link_next) | |
2250 | { | |
2251 | size_t sz; | |
2252 | ||
2253 | sub->output_has_begun = false; | |
2254 | sz = obj_raw_syment_count (sub); | |
2255 | if (sz > max_sym_count) | |
2256 | max_sym_count = sz; | |
2257 | } | |
2258 | ||
2259 | /* Allocate some buffers used while linking. */ | |
2260 | finfo.internal_syms = ((struct internal_syment *) | |
2261 | bfd_malloc (max_sym_count | |
2262 | * sizeof (struct internal_syment))); | |
2263 | finfo.sec_ptrs = (asection **) bfd_malloc (max_sym_count | |
2264 | * sizeof (asection *)); | |
2265 | finfo.sym_indices = (long *) bfd_malloc (max_sym_count * sizeof (long)); | |
2266 | finfo.outsyms = ((bfd_byte *) | |
2267 | bfd_malloc ((size_t) ((max_sym_count + 1) * symesz))); | |
2268 | finfo.linenos = (bfd_byte *) bfd_malloc (max_lineno_count | |
2269 | * bfd_coff_linesz (abfd)); | |
2270 | finfo.contents = (bfd_byte *) bfd_malloc (max_contents_size); | |
2271 | finfo.external_relocs = (bfd_byte *) bfd_malloc (max_reloc_count * relsz); | |
2272 | if (! info->relocateable) | |
2273 | finfo.internal_relocs = ((struct internal_reloc *) | |
2274 | bfd_malloc (max_reloc_count | |
2275 | * sizeof (struct internal_reloc))); | |
2276 | if ((finfo.internal_syms == NULL && max_sym_count > 0) | |
2277 | || (finfo.sec_ptrs == NULL && max_sym_count > 0) | |
2278 | || (finfo.sym_indices == NULL && max_sym_count > 0) | |
2279 | || finfo.outsyms == NULL | |
2280 | || (finfo.linenos == NULL && max_lineno_count > 0) | |
2281 | || (finfo.contents == NULL && max_contents_size > 0) | |
2282 | || (finfo.external_relocs == NULL && max_reloc_count > 0) | |
2283 | || (! info->relocateable | |
2284 | && finfo.internal_relocs == NULL | |
2285 | && max_reloc_count > 0)) | |
2286 | goto error_return; | |
2287 | ||
2288 | /* We now know the position of everything in the file, except that | |
2289 | we don't know the size of the symbol table and therefore we don't | |
2290 | know where the string table starts. We just build the string | |
2291 | table in memory as we go along. We process all the relocations | |
2292 | for a single input file at once. */ | |
2293 | obj_raw_syment_count (abfd) = 0; | |
2294 | ||
2295 | if (coff_backend_info (abfd)->_bfd_coff_start_final_link) | |
2296 | { | |
2297 | if (! bfd_coff_start_final_link (abfd, info)) | |
2298 | goto error_return; | |
2299 | } | |
2300 | ||
2301 | for (o = abfd->sections; o != NULL; o = o->next) | |
2302 | { | |
2303 | for (p = o->link_order_head; p != NULL; p = p->next) | |
2304 | { | |
2305 | if (p->type == bfd_indirect_link_order | |
2306 | && (bfd_get_flavour (p->u.indirect.section->owner) | |
2307 | == bfd_target_coff_flavour)) | |
2308 | { | |
2309 | sub = p->u.indirect.section->owner; | |
2310 | #ifdef ARM_HACKS | |
2311 | if (! sub->output_has_begun && !arm_do_last(sub)) | |
2312 | #else | |
2313 | if (! sub->output_has_begun) | |
2314 | #endif | |
2315 | { | |
2316 | if (! _bfd_coff_link_input_bfd (&finfo, sub)) | |
2317 | goto error_return; | |
2318 | sub->output_has_begun = true; | |
2319 | } | |
2320 | } | |
2321 | else if (p->type == bfd_section_reloc_link_order | |
2322 | || p->type == bfd_symbol_reloc_link_order) | |
2323 | { | |
2324 | if (! _bfd_coff_reloc_link_order (abfd, &finfo, o, p)) | |
2325 | goto error_return; | |
2326 | } | |
2327 | else | |
2328 | { | |
2329 | if (! _bfd_default_link_order (abfd, info, o, p)) | |
2330 | goto error_return; | |
2331 | } | |
2332 | } | |
2333 | } | |
2334 | ||
2335 | #ifdef ARM_HACKS | |
2336 | { | |
2337 | extern bfd* arm_get_last(); | |
2338 | bfd* last_one = arm_get_last(); | |
2339 | if (last_one) | |
2340 | { | |
2341 | if (! _bfd_coff_link_input_bfd (&finfo, last_one)) | |
2342 | goto error_return; | |
33d5d351 | 2343 | last_one->output_has_begun = true; |
e1aeb285 | 2344 | } |
e1aeb285 NC |
2345 | } |
2346 | #endif | |
2347 | ||
2348 | /* Free up the buffers used by _bfd_coff_link_input_bfd. */ | |
2349 | ||
2350 | coff_debug_merge_hash_table_free (&finfo.debug_merge); | |
2351 | debug_merge_allocated = false; | |
2352 | ||
2353 | if (finfo.internal_syms != NULL) | |
2354 | { | |
2355 | free (finfo.internal_syms); | |
2356 | finfo.internal_syms = NULL; | |
2357 | } | |
2358 | if (finfo.sec_ptrs != NULL) | |
2359 | { | |
2360 | free (finfo.sec_ptrs); | |
2361 | finfo.sec_ptrs = NULL; | |
2362 | } | |
2363 | if (finfo.sym_indices != NULL) | |
2364 | { | |
2365 | free (finfo.sym_indices); | |
2366 | finfo.sym_indices = NULL; | |
2367 | } | |
2368 | if (finfo.linenos != NULL) | |
2369 | { | |
2370 | free (finfo.linenos); | |
2371 | finfo.linenos = NULL; | |
2372 | } | |
2373 | if (finfo.contents != NULL) | |
2374 | { | |
2375 | free (finfo.contents); | |
2376 | finfo.contents = NULL; | |
2377 | } | |
2378 | if (finfo.external_relocs != NULL) | |
2379 | { | |
2380 | free (finfo.external_relocs); | |
2381 | finfo.external_relocs = NULL; | |
2382 | } | |
2383 | if (finfo.internal_relocs != NULL) | |
2384 | { | |
2385 | free (finfo.internal_relocs); | |
2386 | finfo.internal_relocs = NULL; | |
2387 | } | |
2388 | ||
2389 | /* The value of the last C_FILE symbol is supposed to be the symbol | |
2390 | index of the first external symbol. Write it out again if | |
2391 | necessary. */ | |
2392 | if (finfo.last_file_index != -1 | |
2393 | && (unsigned int) finfo.last_file.n_value != obj_raw_syment_count (abfd)) | |
2394 | { | |
2395 | finfo.last_file.n_value = obj_raw_syment_count (abfd); | |
2396 | bfd_coff_swap_sym_out (abfd, (PTR) &finfo.last_file, | |
2397 | (PTR) finfo.outsyms); | |
2398 | if (bfd_seek (abfd, | |
2399 | (obj_sym_filepos (abfd) | |
2400 | + finfo.last_file_index * symesz), | |
2401 | SEEK_SET) != 0 | |
2402 | || bfd_write (finfo.outsyms, symesz, 1, abfd) != symesz) | |
2403 | return false; | |
2404 | } | |
2405 | ||
2406 | /* Write out the global symbols. */ | |
2407 | finfo.failed = false; | |
2408 | coff_link_hash_traverse (coff_hash_table (info), _bfd_coff_write_global_sym, | |
2409 | (PTR) &finfo); | |
2410 | if (finfo.failed) | |
2411 | goto error_return; | |
2412 | ||
2413 | /* The outsyms buffer is used by _bfd_coff_write_global_sym. */ | |
2414 | if (finfo.outsyms != NULL) | |
2415 | { | |
2416 | free (finfo.outsyms); | |
2417 | finfo.outsyms = NULL; | |
2418 | } | |
2419 | ||
2420 | if (info->relocateable) | |
2421 | { | |
2422 | /* Now that we have written out all the global symbols, we know | |
2423 | the symbol indices to use for relocs against them, and we can | |
2424 | finally write out the relocs. */ | |
2425 | external_relocs = ((bfd_byte *) | |
2426 | bfd_malloc (max_output_reloc_count * relsz)); | |
2427 | if (external_relocs == NULL) | |
2428 | goto error_return; | |
2429 | ||
2430 | for (o = abfd->sections; o != NULL; o = o->next) | |
2431 | { | |
2432 | struct internal_reloc *irel; | |
2433 | struct internal_reloc *irelend; | |
2434 | struct coff_link_hash_entry **rel_hash; | |
2435 | bfd_byte *erel; | |
2436 | ||
2437 | if (o->reloc_count == 0) | |
2438 | continue; | |
2439 | ||
2440 | irel = finfo.section_info[o->target_index].relocs; | |
2441 | irelend = irel + o->reloc_count; | |
2442 | rel_hash = finfo.section_info[o->target_index].rel_hashes; | |
2443 | erel = external_relocs; | |
2444 | for (; irel < irelend; irel++, rel_hash++, erel += relsz) | |
2445 | { | |
2446 | if (*rel_hash != NULL) | |
2447 | { | |
2448 | BFD_ASSERT ((*rel_hash)->indx >= 0); | |
2449 | irel->r_symndx = (*rel_hash)->indx; | |
2450 | } | |
2451 | bfd_coff_swap_reloc_out (abfd, (PTR) irel, (PTR) erel); | |
2452 | } | |
2453 | ||
2454 | if (bfd_seek (abfd, o->rel_filepos, SEEK_SET) != 0 | |
2455 | || bfd_write ((PTR) external_relocs, relsz, o->reloc_count, | |
2456 | abfd) != relsz * o->reloc_count) | |
2457 | goto error_return; | |
2458 | } | |
2459 | ||
2460 | free (external_relocs); | |
2461 | external_relocs = NULL; | |
2462 | } | |
2463 | ||
2464 | /* Free up the section information. */ | |
2465 | if (finfo.section_info != NULL) | |
2466 | { | |
2467 | unsigned int i; | |
2468 | ||
2469 | for (i = 0; i < abfd->section_count; i++) | |
2470 | { | |
2471 | if (finfo.section_info[i].relocs != NULL) | |
2472 | free (finfo.section_info[i].relocs); | |
2473 | if (finfo.section_info[i].rel_hashes != NULL) | |
2474 | free (finfo.section_info[i].rel_hashes); | |
2475 | } | |
2476 | free (finfo.section_info); | |
2477 | finfo.section_info = NULL; | |
2478 | } | |
2479 | ||
2480 | /* If we have optimized stabs strings, output them. */ | |
2481 | if (coff_hash_table (info)->stab_info != NULL) | |
2482 | { | |
2483 | if (! _bfd_write_stab_strings (abfd, &coff_hash_table (info)->stab_info)) | |
2484 | return false; | |
2485 | } | |
2486 | ||
2487 | /* Write out the string table. */ | |
2488 | if (obj_raw_syment_count (abfd) != 0) | |
2489 | { | |
2490 | if (bfd_seek (abfd, | |
2491 | (obj_sym_filepos (abfd) | |
2492 | + obj_raw_syment_count (abfd) * symesz), | |
2493 | SEEK_SET) != 0) | |
2494 | return false; | |
2495 | ||
2496 | #if STRING_SIZE_SIZE == 4 | |
2497 | bfd_h_put_32 (abfd, | |
2498 | _bfd_stringtab_size (finfo.strtab) + STRING_SIZE_SIZE, | |
2499 | (bfd_byte *) strbuf); | |
2500 | #else | |
2501 | #error Change bfd_h_put_32 | |
2502 | #endif | |
2503 | ||
2504 | if (bfd_write (strbuf, 1, STRING_SIZE_SIZE, abfd) != STRING_SIZE_SIZE) | |
2505 | return false; | |
2506 | ||
2507 | if (! _bfd_stringtab_emit (abfd, finfo.strtab)) | |
2508 | return false; | |
2509 | } | |
2510 | ||
2511 | _bfd_stringtab_free (finfo.strtab); | |
2512 | ||
2513 | /* Setting bfd_get_symcount to 0 will cause write_object_contents to | |
2514 | not try to write out the symbols. */ | |
2515 | bfd_get_symcount (abfd) = 0; | |
2516 | ||
2517 | return true; | |
2518 | ||
2519 | error_return: | |
2520 | if (debug_merge_allocated) | |
2521 | coff_debug_merge_hash_table_free (&finfo.debug_merge); | |
2522 | if (finfo.strtab != NULL) | |
2523 | _bfd_stringtab_free (finfo.strtab); | |
2524 | if (finfo.section_info != NULL) | |
2525 | { | |
2526 | unsigned int i; | |
2527 | ||
2528 | for (i = 0; i < abfd->section_count; i++) | |
2529 | { | |
2530 | if (finfo.section_info[i].relocs != NULL) | |
2531 | free (finfo.section_info[i].relocs); | |
2532 | if (finfo.section_info[i].rel_hashes != NULL) | |
2533 | free (finfo.section_info[i].rel_hashes); | |
2534 | } | |
2535 | free (finfo.section_info); | |
2536 | } | |
2537 | if (finfo.internal_syms != NULL) | |
2538 | free (finfo.internal_syms); | |
2539 | if (finfo.sec_ptrs != NULL) | |
2540 | free (finfo.sec_ptrs); | |
2541 | if (finfo.sym_indices != NULL) | |
2542 | free (finfo.sym_indices); | |
2543 | if (finfo.outsyms != NULL) | |
2544 | free (finfo.outsyms); | |
2545 | if (finfo.linenos != NULL) | |
2546 | free (finfo.linenos); | |
2547 | if (finfo.contents != NULL) | |
2548 | free (finfo.contents); | |
2549 | if (finfo.external_relocs != NULL) | |
2550 | free (finfo.external_relocs); | |
2551 | if (finfo.internal_relocs != NULL) | |
2552 | free (finfo.internal_relocs); | |
2553 | if (external_relocs != NULL) | |
2554 | free (external_relocs); | |
2555 | return false; | |
2556 | } | |
2557 | ||
2558 | static void | |
2559 | arm_bfd_coff_swap_sym_in (abfd, ext1, in1) | |
2560 | bfd *abfd; | |
2561 | PTR ext1; | |
2562 | PTR in1; | |
2563 | { | |
2564 | SYMENT *ext = (SYMENT *)ext1; | |
2565 | struct internal_syment *in = (struct internal_syment *)in1; | |
2566 | flagword flags; | |
2567 | register asection *s; | |
2568 | ||
2569 | if( ext->e.e_name[0] == 0) { | |
2570 | in->_n._n_n._n_zeroes = 0; | |
2571 | in->_n._n_n._n_offset = bfd_h_get_32(abfd, (bfd_byte *) ext->e.e.e_offset); | |
2572 | } | |
2573 | else { | |
2574 | #if SYMNMLEN != E_SYMNMLEN | |
2575 | -> Error, we need to cope with truncating or extending SYMNMLEN!; | |
2576 | #else | |
2577 | memcpy(in->_n._n_name, ext->e.e_name, SYMNMLEN); | |
2578 | #endif | |
2579 | } | |
2580 | in->n_value = bfd_h_get_32(abfd, (bfd_byte *) ext->e_value); | |
2581 | in->n_scnum = bfd_h_get_16(abfd, (bfd_byte *) ext->e_scnum); | |
2582 | if (sizeof(ext->e_type) == 2){ | |
2583 | in->n_type = bfd_h_get_16(abfd, (bfd_byte *) ext->e_type); | |
2584 | } | |
2585 | else { | |
2586 | in->n_type = bfd_h_get_32(abfd, (bfd_byte *) ext->e_type); | |
2587 | } | |
2588 | in->n_sclass = bfd_h_get_8(abfd, ext->e_sclass); | |
2589 | in->n_numaux = bfd_h_get_8(abfd, ext->e_numaux); | |
2590 | ||
2591 | if (bfd_of_glue_owner != 0) /* we already have a toc, so go home */ | |
2592 | return; | |
2593 | ||
2594 | /* save the bfd for later allocation */ | |
2595 | bfd_of_glue_owner = abfd; | |
2596 | ||
2597 | s = bfd_get_section_by_name (bfd_of_glue_owner , | |
2598 | ARM2THUMB_GLUE_SECTION_NAME); | |
2599 | ||
2600 | if (s == NULL) | |
2601 | { | |
2602 | flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY ; | |
2603 | ||
2604 | s = bfd_make_section (bfd_of_glue_owner , ARM2THUMB_GLUE_SECTION_NAME); | |
2605 | ||
2606 | if (s == NULL | |
2607 | || !bfd_set_section_flags (bfd_of_glue_owner, s, flags) | |
2608 | || !bfd_set_section_alignment (bfd_of_glue_owner, s, 2)) | |
2609 | { | |
2610 | /* FIXME: set appropriate bfd error */ | |
2611 | abort(); | |
2612 | } | |
2613 | } | |
2614 | ||
2615 | s = bfd_get_section_by_name ( bfd_of_glue_owner , THUMB2ARM_GLUE_SECTION_NAME); | |
2616 | ||
2617 | if (s == NULL) | |
2618 | { | |
2619 | flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY ; | |
2620 | ||
2621 | s = bfd_make_section (bfd_of_glue_owner , THUMB2ARM_GLUE_SECTION_NAME); | |
2622 | ||
2623 | if (s == NULL | |
2624 | || !bfd_set_section_flags (bfd_of_glue_owner, s, flags) | |
2625 | || !bfd_set_section_alignment (bfd_of_glue_owner, s, 2)) | |
2626 | { | |
2627 | /* FIXME: set appropriate bfd error krk@cygnus.com */ | |
2628 | abort(); | |
2629 | } | |
2630 | } | |
2631 | ||
2632 | return; | |
2633 | } | |
2634 | ||
2635 | static bfd_coff_backend_data arm_bfd_coff_std_swap_table = | |
2636 | { | |
2637 | coff_swap_aux_in, arm_bfd_coff_swap_sym_in, coff_swap_lineno_in, | |
2638 | coff_swap_aux_out, coff_swap_sym_out, | |
2639 | coff_swap_lineno_out, coff_swap_reloc_out, | |
2640 | coff_swap_filehdr_out, coff_swap_aouthdr_out, | |
2641 | coff_swap_scnhdr_out, | |
2642 | FILHSZ, AOUTSZ, SCNHSZ, SYMESZ, AUXESZ, RELSZ, LINESZ, | |
2643 | #ifdef COFF_LONG_FILENAMES | |
2644 | true, | |
2645 | #else | |
2646 | false, | |
2647 | #endif | |
2648 | #ifdef COFF_LONG_SECTION_NAMES | |
2649 | true, | |
2650 | #else | |
2651 | false, | |
2652 | #endif | |
2653 | COFF_DEFAULT_SECTION_ALIGNMENT_POWER, | |
2654 | coff_swap_filehdr_in, coff_swap_aouthdr_in, coff_swap_scnhdr_in, | |
2655 | coff_swap_reloc_in, coff_bad_format_hook, coff_set_arch_mach_hook, | |
2656 | coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook, | |
2657 | coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook, | |
2658 | coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate, | |
2659 | coff_sym_is_global, coff_compute_section_file_positions, | |
2660 | coff_start_final_link, coff_relocate_section, coff_rtype_to_howto, | |
2661 | coff_adjust_symndx, coff_link_add_one_symbol | |
2662 | }; | |
2663 | ||
177b1932 | 2664 | const bfd_target |
3ea928f5 | 2665 | #ifdef TARGET_LITTLE_SYM |
177b1932 DE |
2666 | TARGET_LITTLE_SYM = |
2667 | #else | |
2668 | armcoff_little_vec = | |
2669 | #endif | |
943fbd5b | 2670 | { |
177b1932 DE |
2671 | #ifdef TARGET_LITTLE_NAME |
2672 | TARGET_LITTLE_NAME, | |
2673 | #else | |
2674 | "coff-arm-little", | |
2675 | #endif | |
943fbd5b | 2676 | bfd_target_coff_flavour, |
46686c78 NC |
2677 | BFD_ENDIAN_LITTLE, /* data byte order is little */ |
2678 | BFD_ENDIAN_LITTLE, /* header byte order is little */ | |
943fbd5b KR |
2679 | |
2680 | (HAS_RELOC | EXEC_P | /* object flags */ | |
2681 | HAS_LINENO | HAS_DEBUG | | |
2682 | HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), | |
2683 | ||
46686c78 | 2684 | #ifndef COFF_WITH_PE |
943fbd5b | 2685 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ |
46686c78 NC |
2686 | #else |
2687 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */ | |
2688 | | SEC_LINK_ONCE | SEC_LINK_DUPLICATES), | |
2689 | #endif | |
2690 | ||
943fbd5b KR |
2691 | #ifdef TARGET_UNDERSCORE |
2692 | TARGET_UNDERSCORE, /* leading underscore */ | |
2693 | #else | |
2694 | 0, /* leading underscore */ | |
2695 | #endif | |
2696 | '/', /* ar_pad_char */ | |
2697 | 15, /* ar_max_namelen */ | |
2698 | ||
943fbd5b KR |
2699 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, |
2700 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, | |
2701 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ | |
2702 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, | |
2703 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, | |
2704 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ | |
2705 | ||
2706 | /* Note that we allow an object file to be treated as a core file as well. */ | |
da7afe3b SC |
2707 | {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ |
2708 | bfd_generic_archive_p, coff_object_p}, | |
943fbd5b KR |
2709 | {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ |
2710 | bfd_false}, | |
2711 | {bfd_false, coff_write_object_contents, /* bfd_write_contents */ | |
2712 | _bfd_write_archive_contents, bfd_false}, | |
2713 | ||
2714 | BFD_JUMP_TABLE_GENERIC (coff), | |
2715 | BFD_JUMP_TABLE_COPY (coff), | |
2716 | BFD_JUMP_TABLE_CORE (_bfd_nocore), | |
2717 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), | |
2718 | BFD_JUMP_TABLE_SYMBOLS (coff), | |
2719 | BFD_JUMP_TABLE_RELOCS (coff), | |
2720 | BFD_JUMP_TABLE_WRITE (coff), | |
2721 | BFD_JUMP_TABLE_LINK (coff), | |
2722 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), | |
2723 | ||
e1aeb285 | 2724 | & arm_bfd_coff_std_swap_table, |
943fbd5b | 2725 | }; |
3ea928f5 | 2726 | |
177b1932 | 2727 | const bfd_target |
3ea928f5 | 2728 | #ifdef TARGET_BIG_SYM |
177b1932 DE |
2729 | TARGET_BIG_SYM = |
2730 | #else | |
2731 | armcoff_big_vec = | |
2732 | #endif | |
3ea928f5 | 2733 | { |
177b1932 DE |
2734 | #ifdef TARGET_BIG_NAME |
2735 | TARGET_BIG_NAME, | |
2736 | #else | |
2737 | "coff-arm-big", | |
2738 | #endif | |
3ea928f5 | 2739 | bfd_target_coff_flavour, |
46686c78 NC |
2740 | BFD_ENDIAN_BIG, /* data byte order is big */ |
2741 | BFD_ENDIAN_BIG, /* header byte order is big */ | |
3ea928f5 SC |
2742 | |
2743 | (HAS_RELOC | EXEC_P | /* object flags */ | |
2744 | HAS_LINENO | HAS_DEBUG | | |
2745 | HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), | |
2746 | ||
46686c78 | 2747 | #ifndef COFF_WITH_PE |
3ea928f5 | 2748 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ |
46686c78 NC |
2749 | #else |
2750 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */ | |
2751 | | SEC_LINK_ONCE | SEC_LINK_DUPLICATES), | |
2752 | #endif | |
2753 | ||
3ea928f5 SC |
2754 | #ifdef TARGET_UNDERSCORE |
2755 | TARGET_UNDERSCORE, /* leading underscore */ | |
2756 | #else | |
2757 | 0, /* leading underscore */ | |
2758 | #endif | |
2759 | '/', /* ar_pad_char */ | |
2760 | 15, /* ar_max_namelen */ | |
2761 | ||
3ea928f5 SC |
2762 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, |
2763 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
2764 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */ | |
2765 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, | |
2766 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, | |
2767 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ | |
2768 | ||
2769 | /* Note that we allow an object file to be treated as a core file as well. */ | |
da7afe3b SC |
2770 | {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ |
2771 | bfd_generic_archive_p, coff_object_p}, | |
3ea928f5 SC |
2772 | {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ |
2773 | bfd_false}, | |
2774 | {bfd_false, coff_write_object_contents, /* bfd_write_contents */ | |
2775 | _bfd_write_archive_contents, bfd_false}, | |
2776 | ||
2777 | BFD_JUMP_TABLE_GENERIC (coff), | |
2778 | BFD_JUMP_TABLE_COPY (coff), | |
2779 | BFD_JUMP_TABLE_CORE (_bfd_nocore), | |
2780 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), | |
2781 | BFD_JUMP_TABLE_SYMBOLS (coff), | |
2782 | BFD_JUMP_TABLE_RELOCS (coff), | |
2783 | BFD_JUMP_TABLE_WRITE (coff), | |
2784 | BFD_JUMP_TABLE_LINK (coff), | |
2785 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), | |
2786 | ||
e1aeb285 | 2787 | & arm_bfd_coff_std_swap_table, |
3ea928f5 | 2788 | }; |