Commit | Line | Data |
---|---|---|
69645d10 | 1 | /* COFF specific linker code. |
5a50eec6 | 2 | Copyright 1994, 1995, 1996, 1997 Free Software Foundation, Inc. |
69645d10 ILT |
3 | Written by Ian Lance Taylor, 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 | |
943fbd5b | 19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
69645d10 ILT |
20 | |
21 | /* This file contains the COFF backend linker code. */ | |
22 | ||
23 | #include "bfd.h" | |
24 | #include "sysdep.h" | |
25 | #include "bfdlink.h" | |
26 | #include "libbfd.h" | |
27 | #include "coff/internal.h" | |
28 | #include "libcoff.h" | |
29 | ||
69645d10 ILT |
30 | static boolean coff_link_add_object_symbols |
31 | PARAMS ((bfd *, struct bfd_link_info *)); | |
32 | static boolean coff_link_check_archive_element | |
33 | PARAMS ((bfd *, struct bfd_link_info *, boolean *)); | |
69645d10 ILT |
34 | static boolean coff_link_check_ar_symbols |
35 | PARAMS ((bfd *, struct bfd_link_info *, boolean *)); | |
36 | static boolean coff_link_add_symbols PARAMS ((bfd *, struct bfd_link_info *)); | |
e18683b7 NC |
37 | static char *dores_com PARAMS ((char *, bfd *, int)); |
38 | static char *get_name PARAMS ((char *, char **)); | |
39 | static int process_embedded_commands | |
40 | PARAMS ((bfd *, struct bfd_link_info *, bfd *)); | |
69645d10 ILT |
41 | |
42 | /* Create an entry in a COFF linker hash table. */ | |
43 | ||
5c6725cf ILT |
44 | struct bfd_hash_entry * |
45 | _bfd_coff_link_hash_newfunc (entry, table, string) | |
69645d10 ILT |
46 | struct bfd_hash_entry *entry; |
47 | struct bfd_hash_table *table; | |
48 | const char *string; | |
49 | { | |
50 | struct coff_link_hash_entry *ret = (struct coff_link_hash_entry *) entry; | |
51 | ||
52 | /* Allocate the structure if it has not already been allocated by a | |
53 | subclass. */ | |
54 | if (ret == (struct coff_link_hash_entry *) NULL) | |
55 | ret = ((struct coff_link_hash_entry *) | |
56 | bfd_hash_allocate (table, sizeof (struct coff_link_hash_entry))); | |
57 | if (ret == (struct coff_link_hash_entry *) NULL) | |
a9713b91 | 58 | return (struct bfd_hash_entry *) ret; |
69645d10 ILT |
59 | |
60 | /* Call the allocation method of the superclass. */ | |
61 | ret = ((struct coff_link_hash_entry *) | |
62 | _bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret, | |
63 | table, string)); | |
64 | if (ret != (struct coff_link_hash_entry *) NULL) | |
65 | { | |
66 | /* Set local fields. */ | |
67 | ret->indx = -1; | |
68 | ret->type = T_NULL; | |
69 | ret->class = C_NULL; | |
70 | ret->numaux = 0; | |
71 | ret->auxbfd = NULL; | |
72 | ret->aux = NULL; | |
73 | } | |
74 | ||
75 | return (struct bfd_hash_entry *) ret; | |
76 | } | |
77 | ||
5c6725cf ILT |
78 | /* Initialize a COFF linker hash table. */ |
79 | ||
80 | boolean | |
81 | _bfd_coff_link_hash_table_init (table, abfd, newfunc) | |
82 | struct coff_link_hash_table *table; | |
83 | bfd *abfd; | |
84 | struct bfd_hash_entry *(*newfunc) PARAMS ((struct bfd_hash_entry *, | |
85 | struct bfd_hash_table *, | |
86 | const char *)); | |
87 | { | |
4ad842aa | 88 | table->stab_info = NULL; |
5c6725cf ILT |
89 | return _bfd_link_hash_table_init (&table->root, abfd, newfunc); |
90 | } | |
91 | ||
69645d10 ILT |
92 | /* Create a COFF linker hash table. */ |
93 | ||
94 | struct bfd_link_hash_table * | |
95 | _bfd_coff_link_hash_table_create (abfd) | |
96 | bfd *abfd; | |
97 | { | |
98 | struct coff_link_hash_table *ret; | |
99 | ||
100 | ret = ((struct coff_link_hash_table *) | |
e3364701 | 101 | bfd_alloc (abfd, sizeof (struct coff_link_hash_table))); |
69645d10 | 102 | if (ret == NULL) |
a9713b91 | 103 | return NULL; |
5c6725cf ILT |
104 | if (! _bfd_coff_link_hash_table_init (ret, abfd, |
105 | _bfd_coff_link_hash_newfunc)) | |
69645d10 | 106 | { |
5c6725cf | 107 | bfd_release (abfd, ret); |
69645d10 ILT |
108 | return (struct bfd_link_hash_table *) NULL; |
109 | } | |
110 | return &ret->root; | |
111 | } | |
112 | ||
5c6725cf ILT |
113 | /* Create an entry in a COFF debug merge hash table. */ |
114 | ||
13d1a4dd | 115 | struct bfd_hash_entry * |
bdd2e7f1 | 116 | _bfd_coff_debug_merge_hash_newfunc (entry, table, string) |
5c6725cf ILT |
117 | struct bfd_hash_entry *entry; |
118 | struct bfd_hash_table *table; | |
119 | const char *string; | |
120 | { | |
121 | struct coff_debug_merge_hash_entry *ret = | |
122 | (struct coff_debug_merge_hash_entry *) entry; | |
123 | ||
124 | /* Allocate the structure if it has not already been allocated by a | |
125 | subclass. */ | |
126 | if (ret == (struct coff_debug_merge_hash_entry *) NULL) | |
127 | ret = ((struct coff_debug_merge_hash_entry *) | |
128 | bfd_hash_allocate (table, | |
129 | sizeof (struct coff_debug_merge_hash_entry))); | |
130 | if (ret == (struct coff_debug_merge_hash_entry *) NULL) | |
a9713b91 | 131 | return (struct bfd_hash_entry *) ret; |
5c6725cf ILT |
132 | |
133 | /* Call the allocation method of the superclass. */ | |
134 | ret = ((struct coff_debug_merge_hash_entry *) | |
135 | bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string)); | |
136 | if (ret != (struct coff_debug_merge_hash_entry *) NULL) | |
137 | { | |
138 | /* Set local fields. */ | |
139 | ret->types = NULL; | |
140 | } | |
141 | ||
142 | return (struct bfd_hash_entry *) ret; | |
143 | } | |
144 | ||
69645d10 ILT |
145 | /* Given a COFF BFD, add symbols to the global hash table as |
146 | appropriate. */ | |
147 | ||
148 | boolean | |
149 | _bfd_coff_link_add_symbols (abfd, info) | |
150 | bfd *abfd; | |
151 | struct bfd_link_info *info; | |
152 | { | |
153 | switch (bfd_get_format (abfd)) | |
154 | { | |
155 | case bfd_object: | |
156 | return coff_link_add_object_symbols (abfd, info); | |
157 | case bfd_archive: | |
158 | return (_bfd_generic_link_add_archive_symbols | |
159 | (abfd, info, coff_link_check_archive_element)); | |
160 | default: | |
161 | bfd_set_error (bfd_error_wrong_format); | |
162 | return false; | |
163 | } | |
164 | } | |
165 | ||
166 | /* Add symbols from a COFF object file. */ | |
167 | ||
168 | static boolean | |
169 | coff_link_add_object_symbols (abfd, info) | |
170 | bfd *abfd; | |
171 | struct bfd_link_info *info; | |
172 | { | |
ff31ebda | 173 | if (! _bfd_coff_get_external_symbols (abfd)) |
69645d10 ILT |
174 | return false; |
175 | if (! coff_link_add_symbols (abfd, info)) | |
176 | return false; | |
d6f41a7d | 177 | |
69645d10 ILT |
178 | if (! info->keep_memory) |
179 | { | |
ff31ebda | 180 | if (! _bfd_coff_free_symbols (abfd)) |
69645d10 ILT |
181 | return false; |
182 | } | |
183 | return true; | |
184 | } | |
185 | ||
186 | /* Check a single archive element to see if we need to include it in | |
187 | the link. *PNEEDED is set according to whether this element is | |
188 | needed in the link or not. This is called via | |
189 | _bfd_generic_link_add_archive_symbols. */ | |
190 | ||
191 | static boolean | |
192 | coff_link_check_archive_element (abfd, info, pneeded) | |
193 | bfd *abfd; | |
194 | struct bfd_link_info *info; | |
195 | boolean *pneeded; | |
196 | { | |
ff31ebda | 197 | if (! _bfd_coff_get_external_symbols (abfd)) |
69645d10 ILT |
198 | return false; |
199 | ||
200 | if (! coff_link_check_ar_symbols (abfd, info, pneeded)) | |
201 | return false; | |
202 | ||
203 | if (*pneeded) | |
204 | { | |
205 | if (! coff_link_add_symbols (abfd, info)) | |
206 | return false; | |
207 | } | |
208 | ||
209 | if (! info->keep_memory || ! *pneeded) | |
210 | { | |
ff31ebda | 211 | if (! _bfd_coff_free_symbols (abfd)) |
69645d10 ILT |
212 | return false; |
213 | } | |
214 | ||
215 | return true; | |
216 | } | |
217 | ||
69645d10 ILT |
218 | /* Look through the symbols to see if this object file should be |
219 | included in the link. */ | |
220 | ||
221 | static boolean | |
222 | coff_link_check_ar_symbols (abfd, info, pneeded) | |
223 | bfd *abfd; | |
224 | struct bfd_link_info *info; | |
225 | boolean *pneeded; | |
226 | { | |
227 | boolean (*sym_is_global) PARAMS ((bfd *, struct internal_syment *)); | |
69645d10 ILT |
228 | bfd_size_type symesz; |
229 | bfd_byte *esym; | |
230 | bfd_byte *esym_end; | |
231 | ||
232 | *pneeded = false; | |
233 | ||
234 | sym_is_global = coff_backend_info (abfd)->_bfd_coff_sym_is_global; | |
69645d10 ILT |
235 | |
236 | symesz = bfd_coff_symesz (abfd); | |
237 | esym = (bfd_byte *) obj_coff_external_syms (abfd); | |
238 | esym_end = esym + obj_raw_syment_count (abfd) * symesz; | |
239 | while (esym < esym_end) | |
240 | { | |
241 | struct internal_syment sym; | |
242 | ||
243 | bfd_coff_swap_sym_in (abfd, (PTR) esym, (PTR) &sym); | |
244 | ||
245 | if ((sym.n_sclass == C_EXT | |
246 | || (sym_is_global && (*sym_is_global) (abfd, &sym))) | |
247 | && (sym.n_scnum != 0 || sym.n_value != 0)) | |
248 | { | |
249 | const char *name; | |
250 | char buf[SYMNMLEN + 1]; | |
251 | struct bfd_link_hash_entry *h; | |
252 | ||
253 | /* This symbol is externally visible, and is defined by this | |
254 | object file. */ | |
255 | ||
ff31ebda KR |
256 | name = _bfd_coff_internal_syment_name (abfd, &sym, buf); |
257 | if (name == NULL) | |
258 | return false; | |
69645d10 ILT |
259 | h = bfd_link_hash_lookup (info->hash, name, false, false, true); |
260 | ||
261 | /* We are only interested in symbols that are currently | |
262 | undefined. If a symbol is currently known to be common, | |
263 | COFF linkers do not bring in an object file which defines | |
264 | it. */ | |
265 | if (h != (struct bfd_link_hash_entry *) NULL | |
266 | && h->type == bfd_link_hash_undefined) | |
267 | { | |
268 | if (! (*info->callbacks->add_archive_element) (info, abfd, name)) | |
269 | return false; | |
270 | *pneeded = true; | |
271 | return true; | |
272 | } | |
273 | } | |
274 | ||
275 | esym += (sym.n_numaux + 1) * symesz; | |
276 | } | |
277 | ||
278 | /* We do not need this object file. */ | |
279 | return true; | |
280 | } | |
281 | ||
282 | /* Add all the symbols from an object file to the hash table. */ | |
283 | ||
284 | static boolean | |
285 | coff_link_add_symbols (abfd, info) | |
286 | bfd *abfd; | |
287 | struct bfd_link_info *info; | |
288 | { | |
289 | boolean (*sym_is_global) PARAMS ((bfd *, struct internal_syment *)); | |
179b58d9 | 290 | boolean keep_syms; |
69645d10 ILT |
291 | boolean default_copy; |
292 | bfd_size_type symcount; | |
293 | struct coff_link_hash_entry **sym_hash; | |
294 | bfd_size_type symesz; | |
295 | bfd_byte *esym; | |
296 | bfd_byte *esym_end; | |
297 | ||
179b58d9 ILT |
298 | /* Keep the symbols during this function, in case the linker needs |
299 | to read the generic symbols in order to report an error message. */ | |
300 | keep_syms = obj_coff_keep_syms (abfd); | |
301 | obj_coff_keep_syms (abfd) = true; | |
302 | ||
69645d10 | 303 | sym_is_global = coff_backend_info (abfd)->_bfd_coff_sym_is_global; |
69645d10 ILT |
304 | |
305 | if (info->keep_memory) | |
306 | default_copy = false; | |
307 | else | |
308 | default_copy = true; | |
309 | ||
310 | symcount = obj_raw_syment_count (abfd); | |
311 | ||
312 | /* We keep a list of the linker hash table entries that correspond | |
313 | to particular symbols. */ | |
314 | sym_hash = ((struct coff_link_hash_entry **) | |
315 | bfd_alloc (abfd, | |
316 | ((size_t) symcount | |
317 | * sizeof (struct coff_link_hash_entry *)))); | |
318 | if (sym_hash == NULL && symcount != 0) | |
179b58d9 | 319 | goto error_return; |
69645d10 ILT |
320 | obj_coff_sym_hashes (abfd) = sym_hash; |
321 | memset (sym_hash, 0, | |
322 | (size_t) symcount * sizeof (struct coff_link_hash_entry *)); | |
323 | ||
324 | symesz = bfd_coff_symesz (abfd); | |
325 | BFD_ASSERT (symesz == bfd_coff_auxesz (abfd)); | |
326 | esym = (bfd_byte *) obj_coff_external_syms (abfd); | |
327 | esym_end = esym + symcount * symesz; | |
328 | while (esym < esym_end) | |
329 | { | |
330 | struct internal_syment sym; | |
331 | boolean copy; | |
332 | ||
333 | bfd_coff_swap_sym_in (abfd, (PTR) esym, (PTR) &sym); | |
334 | ||
335 | if (sym.n_sclass == C_EXT | |
336 | || (sym_is_global && (*sym_is_global) (abfd, &sym))) | |
337 | { | |
338 | const char *name; | |
339 | char buf[SYMNMLEN + 1]; | |
340 | flagword flags; | |
341 | asection *section; | |
342 | bfd_vma value; | |
343 | ||
344 | /* This symbol is externally visible. */ | |
345 | ||
ff31ebda KR |
346 | name = _bfd_coff_internal_syment_name (abfd, &sym, buf); |
347 | if (name == NULL) | |
179b58d9 | 348 | goto error_return; |
ff31ebda KR |
349 | |
350 | /* We must copy the name into memory if we got it from the | |
351 | syment itself, rather than the string table. */ | |
69645d10 | 352 | copy = default_copy; |
ff31ebda KR |
353 | if (sym._n._n_n._n_zeroes != 0 |
354 | || sym._n._n_n._n_offset == 0) | |
355 | copy = true; | |
69645d10 ILT |
356 | |
357 | value = sym.n_value; | |
358 | ||
359 | if (sym.n_scnum == 0) | |
360 | { | |
361 | if (value == 0) | |
362 | { | |
363 | flags = 0; | |
364 | section = bfd_und_section_ptr; | |
365 | } | |
366 | else | |
367 | { | |
368 | flags = BSF_GLOBAL; | |
369 | section = bfd_com_section_ptr; | |
370 | } | |
371 | } | |
372 | else | |
373 | { | |
374 | flags = BSF_EXPORT | BSF_GLOBAL; | |
375 | section = coff_section_from_bfd_index (abfd, sym.n_scnum); | |
376 | value -= section->vma; | |
377 | } | |
378 | ||
bdec6228 | 379 | if (! (bfd_coff_link_add_one_symbol |
69645d10 ILT |
380 | (info, abfd, name, flags, section, value, |
381 | (const char *) NULL, copy, false, | |
382 | (struct bfd_link_hash_entry **) sym_hash))) | |
179b58d9 | 383 | goto error_return; |
69645d10 | 384 | |
e18683b7 NC |
385 | if (section == bfd_com_section_ptr |
386 | && (*sym_hash)->root.type == bfd_link_hash_common | |
387 | && ((*sym_hash)->root.u.c.p->alignment_power | |
388 | > bfd_coff_default_section_alignment_power (abfd))) | |
389 | (*sym_hash)->root.u.c.p->alignment_power | |
390 | = bfd_coff_default_section_alignment_power (abfd); | |
391 | ||
69645d10 ILT |
392 | if (info->hash->creator->flavour == bfd_get_flavour (abfd)) |
393 | { | |
394 | if (((*sym_hash)->class == C_NULL | |
395 | && (*sym_hash)->type == T_NULL) | |
396 | || sym.n_scnum != 0 | |
397 | || (sym.n_value != 0 | |
398 | && (*sym_hash)->root.type != bfd_link_hash_defined)) | |
399 | { | |
400 | (*sym_hash)->class = sym.n_sclass; | |
8dd53b5c ILT |
401 | if (sym.n_type != T_NULL) |
402 | { | |
403 | if ((*sym_hash)->type != T_NULL | |
404 | && (*sym_hash)->type != sym.n_type) | |
405 | (*_bfd_error_handler) | |
406 | ("Warning: type of symbol `%s' changed from %d to %d in %s", | |
407 | name, (*sym_hash)->type, sym.n_type, | |
408 | bfd_get_filename (abfd)); | |
409 | (*sym_hash)->type = sym.n_type; | |
410 | } | |
69645d10 ILT |
411 | (*sym_hash)->auxbfd = abfd; |
412 | if (sym.n_numaux != 0) | |
413 | { | |
414 | union internal_auxent *alloc; | |
415 | unsigned int i; | |
416 | bfd_byte *eaux; | |
417 | union internal_auxent *iaux; | |
418 | ||
8dd53b5c | 419 | (*sym_hash)->numaux = sym.n_numaux; |
d25079a0 SC |
420 | alloc = ((union internal_auxent *) |
421 | bfd_hash_allocate (&info->hash->table, | |
422 | (sym.n_numaux | |
423 | * sizeof (*alloc)))); | |
69645d10 | 424 | if (alloc == NULL) |
179b58d9 | 425 | goto error_return; |
69645d10 ILT |
426 | for (i = 0, eaux = esym + symesz, iaux = alloc; |
427 | i < sym.n_numaux; | |
428 | i++, eaux += symesz, iaux++) | |
429 | bfd_coff_swap_aux_in (abfd, (PTR) eaux, sym.n_type, | |
430 | sym.n_sclass, i, sym.n_numaux, | |
431 | (PTR) iaux); | |
432 | (*sym_hash)->aux = alloc; | |
433 | } | |
434 | } | |
435 | } | |
436 | } | |
437 | ||
438 | esym += (sym.n_numaux + 1) * symesz; | |
439 | sym_hash += sym.n_numaux + 1; | |
440 | } | |
441 | ||
4ad842aa ILT |
442 | /* If this is a non-traditional, non-relocateable link, try to |
443 | optimize the handling of any .stab/.stabstr sections. */ | |
444 | if (! info->relocateable | |
445 | && ! info->traditional_format | |
446 | && info->hash->creator->flavour == bfd_get_flavour (abfd) | |
447 | && (info->strip != strip_all && info->strip != strip_debugger)) | |
448 | { | |
449 | asection *stab, *stabstr; | |
450 | ||
451 | stab = bfd_get_section_by_name (abfd, ".stab"); | |
452 | if (stab != NULL) | |
453 | { | |
454 | stabstr = bfd_get_section_by_name (abfd, ".stabstr"); | |
455 | ||
456 | if (stabstr != NULL) | |
457 | { | |
458 | struct coff_link_hash_table *table; | |
459 | struct coff_section_tdata *secdata; | |
460 | ||
461 | secdata = coff_section_data (abfd, stab); | |
462 | if (secdata == NULL) | |
463 | { | |
464 | stab->used_by_bfd = | |
465 | (PTR) bfd_zalloc (abfd, | |
466 | sizeof (struct coff_section_tdata)); | |
467 | if (stab->used_by_bfd == NULL) | |
179b58d9 | 468 | goto error_return; |
4ad842aa ILT |
469 | secdata = coff_section_data (abfd, stab); |
470 | } | |
471 | ||
472 | table = coff_hash_table (info); | |
473 | ||
474 | if (! _bfd_link_section_stabs (abfd, &table->stab_info, | |
475 | stab, stabstr, | |
476 | &secdata->stab_info)) | |
179b58d9 | 477 | goto error_return; |
4ad842aa ILT |
478 | } |
479 | } | |
480 | } | |
481 | ||
179b58d9 ILT |
482 | obj_coff_keep_syms (abfd) = keep_syms; |
483 | ||
69645d10 | 484 | return true; |
179b58d9 ILT |
485 | |
486 | error_return: | |
487 | obj_coff_keep_syms (abfd) = keep_syms; | |
488 | return false; | |
69645d10 | 489 | } |
5c6725cf | 490 | \f |
69645d10 ILT |
491 | /* Do the final link step. */ |
492 | ||
493 | boolean | |
494 | _bfd_coff_final_link (abfd, info) | |
495 | bfd *abfd; | |
496 | struct bfd_link_info *info; | |
497 | { | |
498 | bfd_size_type symesz; | |
499 | struct coff_final_link_info finfo; | |
5c6725cf | 500 | boolean debug_merge_allocated; |
8dd53b5c | 501 | boolean long_section_names; |
69645d10 ILT |
502 | asection *o; |
503 | struct bfd_link_order *p; | |
69645d10 ILT |
504 | size_t max_sym_count; |
505 | size_t max_lineno_count; | |
506 | size_t max_reloc_count; | |
507 | size_t max_output_reloc_count; | |
13d1a4dd | 508 | size_t max_contents_size; |
69645d10 ILT |
509 | file_ptr rel_filepos; |
510 | unsigned int relsz; | |
511 | file_ptr line_filepos; | |
512 | unsigned int linesz; | |
513 | bfd *sub; | |
514 | bfd_byte *external_relocs = NULL; | |
515 | char strbuf[STRING_SIZE_SIZE]; | |
516 | ||
517 | symesz = bfd_coff_symesz (abfd); | |
518 | ||
519 | finfo.info = info; | |
520 | finfo.output_bfd = abfd; | |
521 | finfo.strtab = NULL; | |
522 | finfo.section_info = NULL; | |
523 | finfo.last_file_index = -1; | |
d6e0e2f7 | 524 | finfo.last_bf_index = -1; |
69645d10 ILT |
525 | finfo.internal_syms = NULL; |
526 | finfo.sec_ptrs = NULL; | |
527 | finfo.sym_indices = NULL; | |
528 | finfo.outsyms = NULL; | |
529 | finfo.linenos = NULL; | |
530 | finfo.contents = NULL; | |
531 | finfo.external_relocs = NULL; | |
532 | finfo.internal_relocs = NULL; | |
5c6725cf | 533 | debug_merge_allocated = false; |
69645d10 | 534 | |
e9614321 | 535 | coff_data (abfd)->link_info = info; |
d25079a0 | 536 | |
69645d10 ILT |
537 | finfo.strtab = _bfd_stringtab_init (); |
538 | if (finfo.strtab == NULL) | |
539 | goto error_return; | |
540 | ||
5c6725cf ILT |
541 | if (! coff_debug_merge_hash_table_init (&finfo.debug_merge)) |
542 | goto error_return; | |
543 | debug_merge_allocated = true; | |
544 | ||
69645d10 ILT |
545 | /* Compute the file positions for all the sections. */ |
546 | if (! abfd->output_has_begun) | |
e18683b7 NC |
547 | { |
548 | if (! bfd_coff_compute_section_file_positions (abfd)) | |
549 | goto error_return; | |
550 | } | |
69645d10 ILT |
551 | |
552 | /* Count the line numbers and relocation entries required for the | |
553 | output file. Set the file positions for the relocs. */ | |
554 | rel_filepos = obj_relocbase (abfd); | |
555 | relsz = bfd_coff_relsz (abfd); | |
556 | max_contents_size = 0; | |
557 | max_lineno_count = 0; | |
558 | max_reloc_count = 0; | |
13d1a4dd | 559 | |
8dd53b5c | 560 | long_section_names = false; |
69645d10 ILT |
561 | for (o = abfd->sections; o != NULL; o = o->next) |
562 | { | |
563 | o->reloc_count = 0; | |
564 | o->lineno_count = 0; | |
565 | for (p = o->link_order_head; p != NULL; p = p->next) | |
566 | { | |
567 | if (p->type == bfd_indirect_link_order) | |
568 | { | |
569 | asection *sec; | |
570 | ||
571 | sec = p->u.indirect.section; | |
572 | ||
7ec49f91 ILT |
573 | /* Mark all sections which are to be included in the |
574 | link. This will normally be every section. We need | |
575 | to do this so that we can identify any sections which | |
576 | the linker has decided to not include. */ | |
ff0e4a93 | 577 | sec->linker_mark = true; |
7ec49f91 | 578 | |
69645d10 ILT |
579 | if (info->strip == strip_none |
580 | || info->strip == strip_some) | |
581 | o->lineno_count += sec->lineno_count; | |
582 | ||
583 | if (info->relocateable) | |
584 | o->reloc_count += sec->reloc_count; | |
585 | ||
586 | if (sec->_raw_size > max_contents_size) | |
587 | max_contents_size = sec->_raw_size; | |
588 | if (sec->lineno_count > max_lineno_count) | |
589 | max_lineno_count = sec->lineno_count; | |
590 | if (sec->reloc_count > max_reloc_count) | |
591 | max_reloc_count = sec->reloc_count; | |
592 | } | |
593 | else if (info->relocateable | |
594 | && (p->type == bfd_section_reloc_link_order | |
595 | || p->type == bfd_symbol_reloc_link_order)) | |
596 | ++o->reloc_count; | |
597 | } | |
598 | if (o->reloc_count == 0) | |
599 | o->rel_filepos = 0; | |
600 | else | |
601 | { | |
602 | o->flags |= SEC_RELOC; | |
603 | o->rel_filepos = rel_filepos; | |
604 | rel_filepos += o->reloc_count * relsz; | |
605 | } | |
8dd53b5c ILT |
606 | |
607 | if (bfd_coff_long_section_names (abfd) | |
608 | && strlen (o->name) > SCNNMLEN) | |
609 | { | |
610 | /* This section has a long name which must go in the string | |
611 | table. This must correspond to the code in | |
612 | coff_write_object_contents which puts the string index | |
613 | into the s_name field of the section header. That is why | |
614 | we pass hash as false. */ | |
615 | if (_bfd_stringtab_add (finfo.strtab, o->name, false, false) | |
616 | == (bfd_size_type) -1) | |
617 | goto error_return; | |
618 | long_section_names = true; | |
619 | } | |
69645d10 ILT |
620 | } |
621 | ||
622 | /* If doing a relocateable link, allocate space for the pointers we | |
623 | need to keep. */ | |
624 | if (info->relocateable) | |
625 | { | |
626 | unsigned int i; | |
627 | ||
2a895595 ILT |
628 | /* We use section_count + 1, rather than section_count, because |
629 | the target_index fields are 1 based. */ | |
13d1a4dd KK |
630 | finfo.section_info = |
631 | ((struct coff_link_section_info *) | |
632 | bfd_malloc ((abfd->section_count + 1) | |
633 | * sizeof (struct coff_link_section_info))); | |
69645d10 | 634 | if (finfo.section_info == NULL) |
13d1a4dd | 635 | goto error_return; |
2a895595 | 636 | for (i = 0; i <= abfd->section_count; i++) |
69645d10 ILT |
637 | { |
638 | finfo.section_info[i].relocs = NULL; | |
639 | finfo.section_info[i].rel_hashes = NULL; | |
640 | } | |
641 | } | |
642 | ||
643 | /* We now know the size of the relocs, so we can determine the file | |
644 | positions of the line numbers. */ | |
645 | line_filepos = rel_filepos; | |
646 | linesz = bfd_coff_linesz (abfd); | |
647 | max_output_reloc_count = 0; | |
648 | for (o = abfd->sections; o != NULL; o = o->next) | |
649 | { | |
650 | if (o->lineno_count == 0) | |
651 | o->line_filepos = 0; | |
652 | else | |
653 | { | |
654 | o->line_filepos = line_filepos; | |
655 | line_filepos += o->lineno_count * linesz; | |
656 | } | |
657 | ||
658 | if (o->reloc_count != 0) | |
659 | { | |
660 | /* We don't know the indices of global symbols until we have | |
661 | written out all the local symbols. For each section in | |
662 | the output file, we keep an array of pointers to hash | |
663 | table entries. Each entry in the array corresponds to a | |
664 | reloc. When we find a reloc against a global symbol, we | |
665 | set the corresponding entry in this array so that we can | |
666 | fix up the symbol index after we have written out all the | |
667 | local symbols. | |
668 | ||
669 | Because of this problem, we also keep the relocs in | |
670 | memory until the end of the link. This wastes memory, | |
671 | but only when doing a relocateable link, which is not the | |
672 | common case. */ | |
673 | BFD_ASSERT (info->relocateable); | |
674 | finfo.section_info[o->target_index].relocs = | |
675 | ((struct internal_reloc *) | |
13d1a4dd | 676 | bfd_malloc (o->reloc_count * sizeof (struct internal_reloc))); |
69645d10 ILT |
677 | finfo.section_info[o->target_index].rel_hashes = |
678 | ((struct coff_link_hash_entry **) | |
13d1a4dd | 679 | bfd_malloc (o->reloc_count |
69645d10 ILT |
680 | * sizeof (struct coff_link_hash_entry *))); |
681 | if (finfo.section_info[o->target_index].relocs == NULL | |
682 | || finfo.section_info[o->target_index].rel_hashes == NULL) | |
13d1a4dd | 683 | goto error_return; |
69645d10 ILT |
684 | |
685 | if (o->reloc_count > max_output_reloc_count) | |
686 | max_output_reloc_count = o->reloc_count; | |
687 | } | |
688 | ||
689 | /* Reset the reloc and lineno counts, so that we can use them to | |
690 | count the number of entries we have output so far. */ | |
691 | o->reloc_count = 0; | |
692 | o->lineno_count = 0; | |
693 | } | |
694 | ||
695 | obj_sym_filepos (abfd) = line_filepos; | |
696 | ||
697 | /* Figure out the largest number of symbols in an input BFD. Take | |
698 | the opportunity to clear the output_has_begun fields of all the | |
699 | input BFD's. */ | |
700 | max_sym_count = 0; | |
701 | for (sub = info->input_bfds; sub != NULL; sub = sub->link_next) | |
702 | { | |
703 | size_t sz; | |
704 | ||
705 | sub->output_has_begun = false; | |
706 | sz = obj_raw_syment_count (sub); | |
707 | if (sz > max_sym_count) | |
708 | max_sym_count = sz; | |
709 | } | |
710 | ||
711 | /* Allocate some buffers used while linking. */ | |
712 | finfo.internal_syms = ((struct internal_syment *) | |
13d1a4dd KK |
713 | bfd_malloc (max_sym_count |
714 | * sizeof (struct internal_syment))); | |
715 | finfo.sec_ptrs = (asection **) bfd_malloc (max_sym_count | |
716 | * sizeof (asection *)); | |
717 | finfo.sym_indices = (long *) bfd_malloc (max_sym_count * sizeof (long)); | |
ff31ebda | 718 | finfo.outsyms = ((bfd_byte *) |
13d1a4dd KK |
719 | bfd_malloc ((size_t) ((max_sym_count + 1) * symesz))); |
720 | finfo.linenos = (bfd_byte *) bfd_malloc (max_lineno_count | |
69645d10 | 721 | * bfd_coff_linesz (abfd)); |
13d1a4dd KK |
722 | finfo.contents = (bfd_byte *) bfd_malloc (max_contents_size); |
723 | finfo.external_relocs = (bfd_byte *) bfd_malloc (max_reloc_count * relsz); | |
69645d10 ILT |
724 | if (! info->relocateable) |
725 | finfo.internal_relocs = ((struct internal_reloc *) | |
13d1a4dd KK |
726 | bfd_malloc (max_reloc_count |
727 | * sizeof (struct internal_reloc))); | |
69645d10 ILT |
728 | if ((finfo.internal_syms == NULL && max_sym_count > 0) |
729 | || (finfo.sec_ptrs == NULL && max_sym_count > 0) | |
730 | || (finfo.sym_indices == NULL && max_sym_count > 0) | |
731 | || finfo.outsyms == NULL | |
732 | || (finfo.linenos == NULL && max_lineno_count > 0) | |
733 | || (finfo.contents == NULL && max_contents_size > 0) | |
734 | || (finfo.external_relocs == NULL && max_reloc_count > 0) | |
735 | || (! info->relocateable | |
736 | && finfo.internal_relocs == NULL | |
737 | && max_reloc_count > 0)) | |
13d1a4dd | 738 | goto error_return; |
69645d10 ILT |
739 | |
740 | /* We now know the position of everything in the file, except that | |
741 | we don't know the size of the symbol table and therefore we don't | |
742 | know where the string table starts. We just build the string | |
743 | table in memory as we go along. We process all the relocations | |
744 | for a single input file at once. */ | |
745 | obj_raw_syment_count (abfd) = 0; | |
a208a70f ILT |
746 | |
747 | if (coff_backend_info (abfd)->_bfd_coff_start_final_link) | |
748 | { | |
749 | if (! bfd_coff_start_final_link (abfd, info)) | |
750 | goto error_return; | |
751 | } | |
752 | ||
69645d10 ILT |
753 | for (o = abfd->sections; o != NULL; o = o->next) |
754 | { | |
755 | for (p = o->link_order_head; p != NULL; p = p->next) | |
756 | { | |
757 | if (p->type == bfd_indirect_link_order | |
758 | && (bfd_get_flavour (p->u.indirect.section->owner) | |
759 | == bfd_target_coff_flavour)) | |
760 | { | |
761 | sub = p->u.indirect.section->owner; | |
762 | if (! sub->output_has_begun) | |
763 | { | |
bdd2e7f1 | 764 | if (! _bfd_coff_link_input_bfd (&finfo, sub)) |
69645d10 ILT |
765 | goto error_return; |
766 | sub->output_has_begun = true; | |
767 | } | |
768 | } | |
769 | else if (p->type == bfd_section_reloc_link_order | |
770 | || p->type == bfd_symbol_reloc_link_order) | |
771 | { | |
bdd2e7f1 | 772 | if (! _bfd_coff_reloc_link_order (abfd, &finfo, o, p)) |
69645d10 ILT |
773 | goto error_return; |
774 | } | |
775 | else | |
776 | { | |
777 | if (! _bfd_default_link_order (abfd, info, o, p)) | |
778 | goto error_return; | |
779 | } | |
780 | } | |
781 | } | |
782 | ||
bdd2e7f1 | 783 | /* Free up the buffers used by _bfd_coff_link_input_bfd. */ |
5c6725cf ILT |
784 | |
785 | coff_debug_merge_hash_table_free (&finfo.debug_merge); | |
786 | debug_merge_allocated = false; | |
787 | ||
69645d10 ILT |
788 | if (finfo.internal_syms != NULL) |
789 | { | |
790 | free (finfo.internal_syms); | |
791 | finfo.internal_syms = NULL; | |
792 | } | |
793 | if (finfo.sec_ptrs != NULL) | |
794 | { | |
795 | free (finfo.sec_ptrs); | |
796 | finfo.sec_ptrs = NULL; | |
797 | } | |
798 | if (finfo.sym_indices != NULL) | |
799 | { | |
800 | free (finfo.sym_indices); | |
801 | finfo.sym_indices = NULL; | |
802 | } | |
803 | if (finfo.linenos != NULL) | |
804 | { | |
805 | free (finfo.linenos); | |
806 | finfo.linenos = NULL; | |
807 | } | |
808 | if (finfo.contents != NULL) | |
809 | { | |
810 | free (finfo.contents); | |
811 | finfo.contents = NULL; | |
812 | } | |
813 | if (finfo.external_relocs != NULL) | |
814 | { | |
815 | free (finfo.external_relocs); | |
816 | finfo.external_relocs = NULL; | |
817 | } | |
818 | if (finfo.internal_relocs != NULL) | |
819 | { | |
820 | free (finfo.internal_relocs); | |
821 | finfo.internal_relocs = NULL; | |
822 | } | |
823 | ||
824 | /* The value of the last C_FILE symbol is supposed to be the symbol | |
825 | index of the first external symbol. Write it out again if | |
826 | necessary. */ | |
827 | if (finfo.last_file_index != -1 | |
ae115e51 | 828 | && (unsigned int) finfo.last_file.n_value != obj_raw_syment_count (abfd)) |
69645d10 ILT |
829 | { |
830 | finfo.last_file.n_value = obj_raw_syment_count (abfd); | |
831 | bfd_coff_swap_sym_out (abfd, (PTR) &finfo.last_file, | |
832 | (PTR) finfo.outsyms); | |
833 | if (bfd_seek (abfd, | |
834 | (obj_sym_filepos (abfd) | |
835 | + finfo.last_file_index * symesz), | |
836 | SEEK_SET) != 0 | |
837 | || bfd_write (finfo.outsyms, symesz, 1, abfd) != symesz) | |
838 | return false; | |
839 | } | |
840 | ||
e074d05e FF |
841 | /* If doing task linking (ld --task-link) then make a pass through the |
842 | global symbols, writing out any that are defined, and making them | |
843 | static. */ | |
844 | if (info->task_link) | |
845 | { | |
846 | finfo.failed = false; | |
847 | coff_link_hash_traverse (coff_hash_table (info), _bfd_coff_write_task_globals, | |
848 | (PTR) &finfo); | |
849 | if (finfo.failed) | |
850 | goto error_return; | |
851 | } | |
852 | ||
69645d10 ILT |
853 | /* Write out the global symbols. */ |
854 | finfo.failed = false; | |
bdd2e7f1 | 855 | coff_link_hash_traverse (coff_hash_table (info), _bfd_coff_write_global_sym, |
69645d10 ILT |
856 | (PTR) &finfo); |
857 | if (finfo.failed) | |
858 | goto error_return; | |
859 | ||
bdd2e7f1 | 860 | /* The outsyms buffer is used by _bfd_coff_write_global_sym. */ |
69645d10 ILT |
861 | if (finfo.outsyms != NULL) |
862 | { | |
863 | free (finfo.outsyms); | |
864 | finfo.outsyms = NULL; | |
865 | } | |
866 | ||
179b58d9 | 867 | if (info->relocateable && max_output_reloc_count > 0) |
69645d10 ILT |
868 | { |
869 | /* Now that we have written out all the global symbols, we know | |
870 | the symbol indices to use for relocs against them, and we can | |
871 | finally write out the relocs. */ | |
13d1a4dd KK |
872 | external_relocs = ((bfd_byte *) |
873 | bfd_malloc (max_output_reloc_count * relsz)); | |
69645d10 | 874 | if (external_relocs == NULL) |
13d1a4dd | 875 | goto error_return; |
69645d10 ILT |
876 | |
877 | for (o = abfd->sections; o != NULL; o = o->next) | |
878 | { | |
879 | struct internal_reloc *irel; | |
880 | struct internal_reloc *irelend; | |
881 | struct coff_link_hash_entry **rel_hash; | |
882 | bfd_byte *erel; | |
883 | ||
884 | if (o->reloc_count == 0) | |
885 | continue; | |
886 | ||
887 | irel = finfo.section_info[o->target_index].relocs; | |
888 | irelend = irel + o->reloc_count; | |
889 | rel_hash = finfo.section_info[o->target_index].rel_hashes; | |
890 | erel = external_relocs; | |
891 | for (; irel < irelend; irel++, rel_hash++, erel += relsz) | |
892 | { | |
893 | if (*rel_hash != NULL) | |
894 | { | |
895 | BFD_ASSERT ((*rel_hash)->indx >= 0); | |
896 | irel->r_symndx = (*rel_hash)->indx; | |
897 | } | |
898 | bfd_coff_swap_reloc_out (abfd, (PTR) irel, (PTR) erel); | |
899 | } | |
900 | ||
901 | if (bfd_seek (abfd, o->rel_filepos, SEEK_SET) != 0 | |
902 | || bfd_write ((PTR) external_relocs, relsz, o->reloc_count, | |
903 | abfd) != relsz * o->reloc_count) | |
904 | goto error_return; | |
905 | } | |
906 | ||
907 | free (external_relocs); | |
908 | external_relocs = NULL; | |
909 | } | |
910 | ||
911 | /* Free up the section information. */ | |
912 | if (finfo.section_info != NULL) | |
913 | { | |
914 | unsigned int i; | |
915 | ||
916 | for (i = 0; i < abfd->section_count; i++) | |
917 | { | |
918 | if (finfo.section_info[i].relocs != NULL) | |
919 | free (finfo.section_info[i].relocs); | |
920 | if (finfo.section_info[i].rel_hashes != NULL) | |
921 | free (finfo.section_info[i].rel_hashes); | |
922 | } | |
923 | free (finfo.section_info); | |
924 | finfo.section_info = NULL; | |
925 | } | |
926 | ||
4ad842aa ILT |
927 | /* If we have optimized stabs strings, output them. */ |
928 | if (coff_hash_table (info)->stab_info != NULL) | |
929 | { | |
930 | if (! _bfd_write_stab_strings (abfd, &coff_hash_table (info)->stab_info)) | |
931 | return false; | |
932 | } | |
933 | ||
69645d10 | 934 | /* Write out the string table. */ |
8dd53b5c | 935 | if (obj_raw_syment_count (abfd) != 0 || long_section_names) |
a9713b91 ILT |
936 | { |
937 | if (bfd_seek (abfd, | |
938 | (obj_sym_filepos (abfd) | |
939 | + obj_raw_syment_count (abfd) * symesz), | |
940 | SEEK_SET) != 0) | |
941 | return false; | |
69645d10 ILT |
942 | |
943 | #if STRING_SIZE_SIZE == 4 | |
a9713b91 ILT |
944 | bfd_h_put_32 (abfd, |
945 | _bfd_stringtab_size (finfo.strtab) + STRING_SIZE_SIZE, | |
946 | (bfd_byte *) strbuf); | |
69645d10 ILT |
947 | #else |
948 | #error Change bfd_h_put_32 | |
949 | #endif | |
950 | ||
a9713b91 ILT |
951 | if (bfd_write (strbuf, 1, STRING_SIZE_SIZE, abfd) != STRING_SIZE_SIZE) |
952 | return false; | |
69645d10 | 953 | |
a9713b91 ILT |
954 | if (! _bfd_stringtab_emit (abfd, finfo.strtab)) |
955 | return false; | |
956 | } | |
69645d10 ILT |
957 | |
958 | _bfd_stringtab_free (finfo.strtab); | |
959 | ||
960 | /* Setting bfd_get_symcount to 0 will cause write_object_contents to | |
961 | not try to write out the symbols. */ | |
962 | bfd_get_symcount (abfd) = 0; | |
963 | ||
964 | return true; | |
965 | ||
966 | error_return: | |
5c6725cf ILT |
967 | if (debug_merge_allocated) |
968 | coff_debug_merge_hash_table_free (&finfo.debug_merge); | |
69645d10 ILT |
969 | if (finfo.strtab != NULL) |
970 | _bfd_stringtab_free (finfo.strtab); | |
971 | if (finfo.section_info != NULL) | |
972 | { | |
973 | unsigned int i; | |
974 | ||
975 | for (i = 0; i < abfd->section_count; i++) | |
976 | { | |
977 | if (finfo.section_info[i].relocs != NULL) | |
978 | free (finfo.section_info[i].relocs); | |
979 | if (finfo.section_info[i].rel_hashes != NULL) | |
980 | free (finfo.section_info[i].rel_hashes); | |
981 | } | |
982 | free (finfo.section_info); | |
983 | } | |
984 | if (finfo.internal_syms != NULL) | |
985 | free (finfo.internal_syms); | |
986 | if (finfo.sec_ptrs != NULL) | |
987 | free (finfo.sec_ptrs); | |
988 | if (finfo.sym_indices != NULL) | |
989 | free (finfo.sym_indices); | |
990 | if (finfo.outsyms != NULL) | |
991 | free (finfo.outsyms); | |
992 | if (finfo.linenos != NULL) | |
993 | free (finfo.linenos); | |
994 | if (finfo.contents != NULL) | |
995 | free (finfo.contents); | |
996 | if (finfo.external_relocs != NULL) | |
997 | free (finfo.external_relocs); | |
998 | if (finfo.internal_relocs != NULL) | |
999 | free (finfo.internal_relocs); | |
1000 | if (external_relocs != NULL) | |
1001 | free (external_relocs); | |
1002 | return false; | |
1003 | } | |
1004 | ||
ae115e51 ILT |
1005 | /* parse out a -heap <reserved>,<commit> line */ |
1006 | ||
1007 | static char * | |
1008 | dores_com (ptr, output_bfd, heap) | |
1009 | char *ptr; | |
1010 | bfd *output_bfd; | |
1011 | int heap; | |
1012 | { | |
1013 | if (coff_data(output_bfd)->pe) | |
1014 | { | |
1015 | int val = strtoul (ptr, &ptr, 0); | |
1016 | if (heap) | |
1017 | pe_data(output_bfd)->pe_opthdr.SizeOfHeapReserve =val; | |
1018 | else | |
1019 | pe_data(output_bfd)->pe_opthdr.SizeOfStackReserve =val; | |
1020 | ||
1021 | if (ptr[0] == ',') | |
1022 | { | |
1023 | int val = strtoul (ptr+1, &ptr, 0); | |
1024 | if (heap) | |
1025 | pe_data(output_bfd)->pe_opthdr.SizeOfHeapCommit =val; | |
1026 | else | |
1027 | pe_data(output_bfd)->pe_opthdr.SizeOfStackCommit =val; | |
1028 | } | |
1029 | } | |
1030 | return ptr; | |
1031 | } | |
1032 | ||
1033 | static char *get_name(ptr, dst) | |
1034 | char *ptr; | |
1035 | char **dst; | |
1036 | { | |
1037 | while (*ptr == ' ') | |
1038 | ptr++; | |
1039 | *dst = ptr; | |
1040 | while (*ptr && *ptr != ' ') | |
1041 | ptr++; | |
1042 | *ptr = 0; | |
1043 | return ptr+1; | |
1044 | } | |
5c6725cf | 1045 | |
ae115e51 ILT |
1046 | /* Process any magic embedded commands in a section called .drectve */ |
1047 | ||
5c6725cf | 1048 | static int |
ae115e51 ILT |
1049 | process_embedded_commands (output_bfd, info, abfd) |
1050 | bfd *output_bfd; | |
1051 | struct bfd_link_info *info; | |
1052 | bfd *abfd; | |
1053 | { | |
1054 | asection *sec = bfd_get_section_by_name (abfd, ".drectve"); | |
1055 | char *s; | |
1056 | char *e; | |
1057 | char *copy; | |
1058 | if (!sec) | |
1059 | return 1; | |
1060 | ||
13d1a4dd | 1061 | copy = bfd_malloc ((size_t) sec->_raw_size); |
ae115e51 | 1062 | if (!copy) |
13d1a4dd | 1063 | return 0; |
ae115e51 ILT |
1064 | if (! bfd_get_section_contents(abfd, sec, copy, 0, sec->_raw_size)) |
1065 | { | |
1066 | free (copy); | |
1067 | return 0; | |
1068 | } | |
1069 | e = copy + sec->_raw_size; | |
1070 | for (s = copy; s < e ; ) | |
1071 | { | |
1072 | if (s[0]!= '-') { | |
1073 | s++; | |
1074 | continue; | |
1075 | } | |
1076 | if (strncmp (s,"-attr", 5) == 0) | |
1077 | { | |
1078 | char *name; | |
1079 | char *attribs; | |
1080 | asection *asec; | |
1081 | ||
1082 | int loop = 1; | |
1083 | int had_write = 0; | |
1084 | int had_read = 0; | |
1085 | int had_exec= 0; | |
1086 | int had_shared= 0; | |
1087 | s += 5; | |
1088 | s = get_name(s, &name); | |
1089 | s = get_name(s, &attribs); | |
1090 | while (loop) { | |
1091 | switch (*attribs++) | |
1092 | { | |
1093 | case 'W': | |
1094 | had_write = 1; | |
1095 | break; | |
1096 | case 'R': | |
1097 | had_read = 1; | |
1098 | break; | |
1099 | case 'S': | |
1100 | had_shared = 1; | |
1101 | break; | |
1102 | case 'X': | |
1103 | had_exec = 1; | |
1104 | break; | |
1105 | default: | |
1106 | loop = 0; | |
1107 | } | |
1108 | } | |
1109 | asec = bfd_get_section_by_name (abfd, name); | |
1110 | if (asec) { | |
1111 | if (had_exec) | |
1112 | asec->flags |= SEC_CODE; | |
1113 | if (!had_write) | |
1114 | asec->flags |= SEC_READONLY; | |
1115 | } | |
1116 | } | |
1117 | else if (strncmp (s,"-heap", 5) == 0) | |
1118 | { | |
1119 | s = dores_com (s+5, output_bfd, 1); | |
1120 | } | |
1121 | else if (strncmp (s,"-stack", 6) == 0) | |
1122 | { | |
1123 | s = dores_com (s+6, output_bfd, 0); | |
1124 | } | |
1125 | else | |
1126 | s++; | |
1127 | } | |
1128 | free (copy); | |
1129 | return 1; | |
1130 | } | |
1131 | ||
e18683b7 NC |
1132 | /* Place a marker against all symbols which are used by relocations. |
1133 | This marker can be picked up by the 'do we skip this symbol ?' | |
1134 | loop in _bfd_coff_link_input_bfd() and used to prevent skipping | |
1135 | that symbol. | |
1136 | */ | |
1137 | ||
1138 | static void | |
1139 | mark_relocs (finfo, input_bfd) | |
1140 | struct coff_final_link_info * finfo; | |
1141 | bfd * input_bfd; | |
1142 | { | |
1143 | asection * a; | |
1144 | ||
1145 | if ((bfd_get_file_flags (input_bfd) & HAS_SYMS) == 0) | |
1146 | return; | |
1147 | ||
1148 | for (a = input_bfd->sections; a != (asection *) NULL; a = a->next) | |
1149 | { | |
1150 | struct internal_reloc * internal_relocs; | |
1151 | struct internal_reloc * irel; | |
1152 | struct internal_reloc * irelend; | |
1153 | ||
1154 | ||
1155 | if ((a->flags & SEC_RELOC) == 0 || a->reloc_count < 1) | |
1156 | continue; | |
1157 | ||
1158 | /* Read in the relocs. */ | |
1159 | internal_relocs = _bfd_coff_read_internal_relocs | |
1160 | (input_bfd, a, false, | |
1161 | finfo->external_relocs, | |
1162 | finfo->info->relocateable, | |
1163 | (finfo->info->relocateable | |
1164 | ? (finfo->section_info[ a->output_section->target_index ].relocs + a->output_section->reloc_count) | |
1165 | : finfo->internal_relocs) | |
1166 | ); | |
1167 | ||
1168 | if (internal_relocs == NULL) | |
1169 | continue; | |
1170 | ||
1171 | irel = internal_relocs; | |
1172 | irelend = irel + a->reloc_count; | |
1173 | ||
1174 | /* Place a mark in the sym_indices array (whose entries have | |
1175 | been initialised to 0) for all of the symbols that are used | |
1176 | in the relocation table. This will then be picked up in the | |
1177 | skip/don't pass */ | |
1178 | ||
1179 | for (; irel < irelend; irel++) | |
1180 | { | |
1181 | finfo->sym_indices[ irel->r_symndx ] = -1; | |
1182 | } | |
1183 | } | |
1184 | } | |
1185 | ||
69645d10 ILT |
1186 | /* Link an input file into the linker output file. This function |
1187 | handles all the sections and relocations of the input file at once. */ | |
1188 | ||
13d1a4dd | 1189 | boolean |
bdd2e7f1 | 1190 | _bfd_coff_link_input_bfd (finfo, input_bfd) |
69645d10 ILT |
1191 | struct coff_final_link_info *finfo; |
1192 | bfd *input_bfd; | |
1193 | { | |
1194 | boolean (*sym_is_global) PARAMS ((bfd *, struct internal_syment *)); | |
d25079a0 SC |
1195 | boolean (*adjust_symndx) PARAMS ((bfd *, struct bfd_link_info *, bfd *, |
1196 | asection *, struct internal_reloc *, | |
1197 | boolean *)); | |
69645d10 ILT |
1198 | bfd *output_bfd; |
1199 | const char *strings; | |
1200 | bfd_size_type syment_base; | |
1201 | unsigned int n_tmask; | |
1202 | unsigned int n_btshft; | |
1203 | boolean copy, hash; | |
1204 | bfd_size_type isymesz; | |
1205 | bfd_size_type osymesz; | |
1206 | bfd_size_type linesz; | |
1207 | bfd_byte *esym; | |
1208 | bfd_byte *esym_end; | |
1209 | struct internal_syment *isymp; | |
1210 | asection **secpp; | |
1211 | long *indexp; | |
ae115e51 | 1212 | unsigned long output_index; |
69645d10 ILT |
1213 | bfd_byte *outsym; |
1214 | struct coff_link_hash_entry **sym_hash; | |
69645d10 ILT |
1215 | asection *o; |
1216 | ||
1217 | /* Move all the symbols to the output file. */ | |
1218 | ||
1219 | output_bfd = finfo->output_bfd; | |
1220 | sym_is_global = coff_backend_info (input_bfd)->_bfd_coff_sym_is_global; | |
1221 | strings = NULL; | |
1222 | syment_base = obj_raw_syment_count (output_bfd); | |
1223 | isymesz = bfd_coff_symesz (input_bfd); | |
1224 | osymesz = bfd_coff_symesz (output_bfd); | |
1225 | linesz = bfd_coff_linesz (input_bfd); | |
1226 | BFD_ASSERT (linesz == bfd_coff_linesz (output_bfd)); | |
1227 | ||
1228 | n_tmask = coff_data (input_bfd)->local_n_tmask; | |
1229 | n_btshft = coff_data (input_bfd)->local_n_btshft; | |
1230 | ||
1231 | /* Define macros so that ISFCN, et. al., macros work correctly. */ | |
1232 | #define N_TMASK n_tmask | |
1233 | #define N_BTSHFT n_btshft | |
1234 | ||
1235 | copy = false; | |
1236 | if (! finfo->info->keep_memory) | |
1237 | copy = true; | |
1238 | hash = true; | |
1239 | if ((output_bfd->flags & BFD_TRADITIONAL_FORMAT) != 0) | |
1240 | hash = false; | |
1241 | ||
ff31ebda | 1242 | if (! _bfd_coff_get_external_symbols (input_bfd)) |
69645d10 ILT |
1243 | return false; |
1244 | ||
1245 | esym = (bfd_byte *) obj_coff_external_syms (input_bfd); | |
1246 | esym_end = esym + obj_raw_syment_count (input_bfd) * isymesz; | |
1247 | isymp = finfo->internal_syms; | |
1248 | secpp = finfo->sec_ptrs; | |
1249 | indexp = finfo->sym_indices; | |
1250 | output_index = syment_base; | |
1251 | outsym = finfo->outsyms; | |
d25079a0 | 1252 | |
7ec49f91 ILT |
1253 | if (coff_data (output_bfd)->pe) |
1254 | { | |
1255 | if (! process_embedded_commands (output_bfd, finfo->info, input_bfd)) | |
1256 | return false; | |
1257 | } | |
d25079a0 | 1258 | |
e18683b7 NC |
1259 | /* If we are going to perform relocations and also strip/discard some symbols |
1260 | then we must make sure that we do not strip/discard those symbols that are | |
1261 | going to be involved in the relocations */ | |
1262 | if (( finfo->info->strip != strip_none | |
1263 | || finfo->info->discard != discard_none) | |
1264 | && finfo->info->relocateable) | |
1265 | { | |
1266 | /* mark the symbol array as 'not-used' */ | |
1267 | memset (indexp, 0, obj_raw_syment_count (input_bfd) * sizeof * indexp); | |
1268 | ||
1269 | mark_relocs (finfo, input_bfd); | |
1270 | } | |
1271 | ||
69645d10 ILT |
1272 | while (esym < esym_end) |
1273 | { | |
1274 | struct internal_syment isym; | |
1275 | boolean skip; | |
1276 | boolean global; | |
e18683b7 | 1277 | boolean dont_skip_symbol; |
69645d10 ILT |
1278 | int add; |
1279 | ||
1280 | bfd_coff_swap_sym_in (input_bfd, (PTR) esym, (PTR) isymp); | |
1281 | ||
1282 | /* Make a copy of *isymp so that the relocate_section function | |
1283 | always sees the original values. This is more reliable than | |
1284 | always recomputing the symbol value even if we are stripping | |
1285 | the symbol. */ | |
1286 | isym = *isymp; | |
1287 | ||
2a895595 ILT |
1288 | if (isym.n_scnum != 0) |
1289 | *secpp = coff_section_from_bfd_index (input_bfd, isym.n_scnum); | |
1290 | else | |
1291 | { | |
1292 | if (isym.n_value == 0) | |
1293 | *secpp = bfd_und_section_ptr; | |
1294 | else | |
1295 | *secpp = bfd_com_section_ptr; | |
1296 | } | |
1297 | ||
e18683b7 NC |
1298 | /* Extract the flag indicating if this symbol is used by a relocation */ |
1299 | if (( finfo->info->strip != strip_none | |
1300 | || finfo->info->discard != discard_none) | |
1301 | && finfo->info->relocateable) | |
1302 | dont_skip_symbol = *indexp; | |
1303 | else | |
1304 | dont_skip_symbol = false; | |
1305 | ||
69645d10 ILT |
1306 | *indexp = -1; |
1307 | ||
1308 | skip = false; | |
1309 | global = false; | |
1310 | add = 1 + isym.n_numaux; | |
1311 | ||
1312 | /* If we are stripping all symbols, we want to skip this one. */ | |
e18683b7 | 1313 | if (finfo->info->strip == strip_all && ! dont_skip_symbol) |
69645d10 ILT |
1314 | skip = true; |
1315 | ||
1316 | if (! skip) | |
1317 | { | |
1318 | if (isym.n_sclass == C_EXT | |
1319 | || (sym_is_global && (*sym_is_global) (input_bfd, &isym))) | |
1320 | { | |
1321 | /* This is a global symbol. Global symbols come at the | |
1322 | end of the symbol table, so skip them for now. | |
1323 | Function symbols, however, are an exception, and are | |
1324 | not moved to the end. */ | |
1325 | global = true; | |
1326 | if (! ISFCN (isym.n_type)) | |
1327 | skip = true; | |
1328 | } | |
1329 | else | |
1330 | { | |
1331 | /* This is a local symbol. Skip it if we are discarding | |
1332 | local symbols. */ | |
e18683b7 | 1333 | if (finfo->info->discard == discard_all && ! dont_skip_symbol) |
69645d10 ILT |
1334 | skip = true; |
1335 | } | |
1336 | } | |
1337 | ||
1338 | /* If we stripping debugging symbols, and this is a debugging | |
1339 | symbol, then skip it. */ | |
1340 | if (! skip | |
1341 | && finfo->info->strip == strip_debugger | |
e18683b7 | 1342 | && ! dont_skip_symbol |
69645d10 ILT |
1343 | && isym.n_scnum == N_DEBUG) |
1344 | skip = true; | |
1345 | ||
1346 | /* If some symbols are stripped based on the name, work out the | |
1347 | name and decide whether to skip this symbol. */ | |
1348 | if (! skip | |
1349 | && (finfo->info->strip == strip_some | |
1350 | || finfo->info->discard == discard_l)) | |
1351 | { | |
1352 | const char *name; | |
1353 | char buf[SYMNMLEN + 1]; | |
1354 | ||
ff31ebda KR |
1355 | name = _bfd_coff_internal_syment_name (input_bfd, &isym, buf); |
1356 | if (name == NULL) | |
1357 | return false; | |
69645d10 | 1358 | |
e18683b7 NC |
1359 | if (! dont_skip_symbol |
1360 | && ((finfo->info->strip == strip_some | |
1361 | && (bfd_hash_lookup (finfo->info->keep_hash, name, false, | |
69645d10 | 1362 | false) == NULL)) |
e18683b7 NC |
1363 | || (! global |
1364 | && finfo->info->discard == discard_l | |
1365 | && bfd_is_local_label_name (input_bfd, name)))) | |
69645d10 ILT |
1366 | skip = true; |
1367 | } | |
1368 | ||
5c6725cf ILT |
1369 | /* If this is an enum, struct, or union tag, see if we have |
1370 | already output an identical type. */ | |
1371 | if (! skip | |
1372 | && (finfo->output_bfd->flags & BFD_TRADITIONAL_FORMAT) == 0 | |
1373 | && (isym.n_sclass == C_ENTAG | |
1374 | || isym.n_sclass == C_STRTAG | |
1375 | || isym.n_sclass == C_UNTAG) | |
1376 | && isym.n_numaux == 1) | |
1377 | { | |
1378 | const char *name; | |
1379 | char buf[SYMNMLEN + 1]; | |
1380 | struct coff_debug_merge_hash_entry *mh; | |
1381 | struct coff_debug_merge_type *mt; | |
1382 | union internal_auxent aux; | |
1383 | struct coff_debug_merge_element **epp; | |
1384 | bfd_byte *esl, *eslend; | |
1385 | struct internal_syment *islp; | |
5c6725cf ILT |
1386 | |
1387 | name = _bfd_coff_internal_syment_name (input_bfd, &isym, buf); | |
1388 | if (name == NULL) | |
1389 | return false; | |
1390 | ||
1391 | /* Ignore fake names invented by compiler; treat them all as | |
1392 | the same name. */ | |
7ec49f91 | 1393 | if (*name == '~' || *name == '.' || *name == '$' |
5c6725cf | 1394 | || (*name == bfd_get_symbol_leading_char (input_bfd) |
7ec49f91 | 1395 | && (name[1] == '~' || name[1] == '.' || name[1] == '$'))) |
5c6725cf ILT |
1396 | name = ""; |
1397 | ||
1398 | mh = coff_debug_merge_hash_lookup (&finfo->debug_merge, name, | |
1399 | true, true); | |
1400 | if (mh == NULL) | |
1401 | return false; | |
1402 | ||
1403 | /* Allocate memory to hold type information. If this turns | |
1404 | out to be a duplicate, we pass this address to | |
1405 | bfd_release. */ | |
1406 | mt = ((struct coff_debug_merge_type *) | |
1407 | bfd_alloc (input_bfd, | |
1408 | sizeof (struct coff_debug_merge_type))); | |
1409 | if (mt == NULL) | |
a9713b91 | 1410 | return false; |
5c6725cf ILT |
1411 | mt->class = isym.n_sclass; |
1412 | ||
1413 | /* Pick up the aux entry, which points to the end of the tag | |
1414 | entries. */ | |
1415 | bfd_coff_swap_aux_in (input_bfd, (PTR) (esym + isymesz), | |
1416 | isym.n_type, isym.n_sclass, 0, isym.n_numaux, | |
1417 | (PTR) &aux); | |
1418 | ||
1419 | /* Gather the elements. */ | |
1420 | epp = &mt->elements; | |
1421 | mt->elements = NULL; | |
1422 | islp = isymp + 2; | |
1423 | esl = esym + 2 * isymesz; | |
1424 | eslend = ((bfd_byte *) obj_coff_external_syms (input_bfd) | |
1425 | + aux.x_sym.x_fcnary.x_fcn.x_endndx.l * isymesz); | |
1426 | while (esl < eslend) | |
1427 | { | |
1428 | const char *elename; | |
1429 | char elebuf[SYMNMLEN + 1]; | |
1430 | char *copy; | |
1431 | ||
1432 | bfd_coff_swap_sym_in (input_bfd, (PTR) esl, (PTR) islp); | |
1433 | ||
1434 | *epp = ((struct coff_debug_merge_element *) | |
1435 | bfd_alloc (input_bfd, | |
1436 | sizeof (struct coff_debug_merge_element))); | |
1437 | if (*epp == NULL) | |
a9713b91 | 1438 | return false; |
5c6725cf ILT |
1439 | |
1440 | elename = _bfd_coff_internal_syment_name (input_bfd, islp, | |
1441 | elebuf); | |
1442 | if (elename == NULL) | |
1443 | return false; | |
1444 | ||
1445 | copy = (char *) bfd_alloc (input_bfd, strlen (elename) + 1); | |
1446 | if (copy == NULL) | |
a9713b91 | 1447 | return false; |
5c6725cf ILT |
1448 | strcpy (copy, elename); |
1449 | ||
1450 | (*epp)->name = copy; | |
1451 | (*epp)->type = islp->n_type; | |
1452 | (*epp)->tagndx = 0; | |
1453 | if (islp->n_numaux >= 1 | |
1454 | && islp->n_type != T_NULL | |
1455 | && islp->n_sclass != C_EOS) | |
1456 | { | |
1457 | union internal_auxent eleaux; | |
1458 | long indx; | |
1459 | ||
1460 | bfd_coff_swap_aux_in (input_bfd, (PTR) (esl + isymesz), | |
1461 | islp->n_type, islp->n_sclass, 0, | |
1462 | islp->n_numaux, (PTR) &eleaux); | |
1463 | indx = eleaux.x_sym.x_tagndx.l; | |
1464 | ||
1465 | /* FIXME: If this tagndx entry refers to a symbol | |
1466 | defined later in this file, we just ignore it. | |
1467 | Handling this correctly would be tedious, and may | |
1468 | not be required. */ | |
1469 | ||
1470 | if (indx > 0 | |
1471 | && (indx | |
1472 | < ((esym - | |
1473 | (bfd_byte *) obj_coff_external_syms (input_bfd)) | |
1474 | / (long) isymesz))) | |
1475 | { | |
1476 | (*epp)->tagndx = finfo->sym_indices[indx]; | |
1477 | if ((*epp)->tagndx < 0) | |
1478 | (*epp)->tagndx = 0; | |
1479 | } | |
1480 | } | |
1481 | epp = &(*epp)->next; | |
1482 | *epp = NULL; | |
1483 | ||
1484 | esl += (islp->n_numaux + 1) * isymesz; | |
1485 | islp += islp->n_numaux + 1; | |
1486 | } | |
1487 | ||
1488 | /* See if we already have a definition which matches this | |
bdec6228 ILT |
1489 | type. We always output the type if it has no elements, |
1490 | for simplicity. */ | |
1491 | if (mt->elements == NULL) | |
1492 | bfd_release (input_bfd, (PTR) mt); | |
1493 | else | |
5c6725cf | 1494 | { |
bdec6228 | 1495 | struct coff_debug_merge_type *mtl; |
5c6725cf | 1496 | |
bdec6228 | 1497 | for (mtl = mh->types; mtl != NULL; mtl = mtl->next) |
5c6725cf | 1498 | { |
bdec6228 ILT |
1499 | struct coff_debug_merge_element *me, *mel; |
1500 | ||
1501 | if (mtl->class != mt->class) | |
1502 | continue; | |
1503 | ||
1504 | for (me = mt->elements, mel = mtl->elements; | |
1505 | me != NULL && mel != NULL; | |
1506 | me = me->next, mel = mel->next) | |
1507 | { | |
1508 | if (strcmp (me->name, mel->name) != 0 | |
1509 | || me->type != mel->type | |
1510 | || me->tagndx != mel->tagndx) | |
1511 | break; | |
1512 | } | |
1513 | ||
1514 | if (me == NULL && mel == NULL) | |
5c6725cf ILT |
1515 | break; |
1516 | } | |
1517 | ||
bdec6228 ILT |
1518 | if (mtl == NULL || (bfd_size_type) mtl->indx >= syment_base) |
1519 | { | |
1520 | /* This is the first definition of this type. */ | |
1521 | mt->indx = output_index; | |
1522 | mt->next = mh->types; | |
1523 | mh->types = mt; | |
1524 | } | |
1525 | else | |
1526 | { | |
1527 | /* This is a redefinition which can be merged. */ | |
1528 | bfd_release (input_bfd, (PTR) mt); | |
1529 | *indexp = mtl->indx; | |
1530 | add = (eslend - esym) / isymesz; | |
1531 | skip = true; | |
1532 | } | |
5c6725cf ILT |
1533 | } |
1534 | } | |
1535 | ||
69645d10 ILT |
1536 | /* We now know whether we are to skip this symbol or not. */ |
1537 | if (! skip) | |
1538 | { | |
1539 | /* Adjust the symbol in order to output it. */ | |
1540 | ||
1541 | if (isym._n._n_n._n_zeroes == 0 | |
1542 | && isym._n._n_n._n_offset != 0) | |
1543 | { | |
1544 | const char *name; | |
1545 | bfd_size_type indx; | |
1546 | ||
1547 | /* This symbol has a long name. Enter it in the string | |
1548 | table we are building. Note that we do not check | |
1549 | bfd_coff_symname_in_debug. That is only true for | |
1550 | XCOFF, and XCOFF requires different linking code | |
1551 | anyhow. */ | |
ff31ebda KR |
1552 | name = _bfd_coff_internal_syment_name (input_bfd, &isym, |
1553 | (char *) NULL); | |
1554 | if (name == NULL) | |
1555 | return false; | |
69645d10 ILT |
1556 | indx = _bfd_stringtab_add (finfo->strtab, name, hash, copy); |
1557 | if (indx == (bfd_size_type) -1) | |
1558 | return false; | |
1559 | isym._n._n_n._n_offset = STRING_SIZE_SIZE + indx; | |
1560 | } | |
1561 | ||
1562 | if (isym.n_scnum > 0) | |
1563 | { | |
1564 | isym.n_scnum = (*secpp)->output_section->target_index; | |
20a9631a ILT |
1565 | isym.n_value += (*secpp)->output_offset; |
1566 | if (! obj_pe (finfo->output_bfd)) | |
1567 | isym.n_value += ((*secpp)->output_section->vma | |
1568 | - (*secpp)->vma); | |
69645d10 ILT |
1569 | } |
1570 | ||
1571 | /* The value of a C_FILE symbol is the symbol index of the | |
1572 | next C_FILE symbol. The value of the last C_FILE symbol | |
1573 | is the symbol index to the first external symbol | |
1574 | (actually, coff_renumber_symbols does not get this | |
1575 | right--it just sets the value of the last C_FILE symbol | |
1576 | to zero--and nobody has ever complained about it). We | |
1577 | try to get this right, below, just before we write the | |
1578 | symbols out, but in the general case we may have to write | |
1579 | the symbol out twice. */ | |
1580 | if (isym.n_sclass == C_FILE) | |
1581 | { | |
1582 | if (finfo->last_file_index != -1 | |
ae115e51 | 1583 | && finfo->last_file.n_value != (long) output_index) |
69645d10 ILT |
1584 | { |
1585 | /* We must correct the value of the last C_FILE entry. */ | |
1586 | finfo->last_file.n_value = output_index; | |
ae115e51 | 1587 | if ((bfd_size_type) finfo->last_file_index >= syment_base) |
69645d10 ILT |
1588 | { |
1589 | /* The last C_FILE symbol is in this input file. */ | |
1590 | bfd_coff_swap_sym_out (output_bfd, | |
1591 | (PTR) &finfo->last_file, | |
1592 | (PTR) (finfo->outsyms | |
1593 | + ((finfo->last_file_index | |
1594 | - syment_base) | |
1595 | * osymesz))); | |
1596 | } | |
1597 | else | |
1598 | { | |
1599 | /* We have already written out the last C_FILE | |
1600 | symbol. We need to write it out again. We | |
1601 | borrow *outsym temporarily. */ | |
1602 | bfd_coff_swap_sym_out (output_bfd, | |
1603 | (PTR) &finfo->last_file, | |
1604 | (PTR) outsym); | |
1605 | if (bfd_seek (output_bfd, | |
1606 | (obj_sym_filepos (output_bfd) | |
1607 | + finfo->last_file_index * osymesz), | |
1608 | SEEK_SET) != 0 | |
1609 | || (bfd_write (outsym, osymesz, 1, output_bfd) | |
1610 | != osymesz)) | |
1611 | return false; | |
1612 | } | |
1613 | } | |
1614 | ||
1615 | finfo->last_file_index = output_index; | |
1616 | finfo->last_file = isym; | |
1617 | } | |
1618 | ||
e074d05e FF |
1619 | /* If doing task linking, convert normal global function symbols to |
1620 | static functions. */ | |
1621 | ||
1622 | if (finfo->info->task_link && isym.n_sclass == C_EXT) | |
1623 | isym.n_sclass = C_STAT; | |
1624 | ||
69645d10 ILT |
1625 | /* Output the symbol. */ |
1626 | ||
1627 | bfd_coff_swap_sym_out (output_bfd, (PTR) &isym, (PTR) outsym); | |
1628 | ||
1629 | *indexp = output_index; | |
1630 | ||
1631 | if (global) | |
1632 | { | |
1633 | long indx; | |
1634 | struct coff_link_hash_entry *h; | |
1635 | ||
1636 | indx = ((esym - (bfd_byte *) obj_coff_external_syms (input_bfd)) | |
1637 | / isymesz); | |
1638 | h = obj_coff_sym_hashes (input_bfd)[indx]; | |
263d4a62 ILT |
1639 | if (h == NULL) |
1640 | { | |
1641 | /* This can happen if there were errors earlier in | |
1642 | the link. */ | |
1643 | bfd_set_error (bfd_error_bad_value); | |
1644 | return false; | |
1645 | } | |
69645d10 ILT |
1646 | h->indx = output_index; |
1647 | } | |
1648 | ||
1649 | output_index += add; | |
1650 | outsym += add * osymesz; | |
1651 | } | |
1652 | ||
1653 | esym += add * isymesz; | |
1654 | isymp += add; | |
1655 | ++secpp; | |
1656 | ++indexp; | |
1657 | for (--add; add > 0; --add) | |
1658 | { | |
1659 | *secpp++ = NULL; | |
1660 | *indexp++ = -1; | |
1661 | } | |
1662 | } | |
1663 | ||
1664 | /* Fix up the aux entries. This must be done in a separate pass, | |
1665 | because we don't know the correct symbol indices until we have | |
1666 | already decided which symbols we are going to keep. */ | |
1667 | ||
1668 | esym = (bfd_byte *) obj_coff_external_syms (input_bfd); | |
1669 | esym_end = esym + obj_raw_syment_count (input_bfd) * isymesz; | |
1670 | isymp = finfo->internal_syms; | |
1671 | indexp = finfo->sym_indices; | |
1672 | sym_hash = obj_coff_sym_hashes (input_bfd); | |
1673 | outsym = finfo->outsyms; | |
1674 | while (esym < esym_end) | |
1675 | { | |
1676 | int add; | |
1677 | ||
1678 | add = 1 + isymp->n_numaux; | |
1679 | ||
5c6725cf ILT |
1680 | if ((*indexp < 0 |
1681 | || (bfd_size_type) *indexp < syment_base) | |
69645d10 ILT |
1682 | && (*sym_hash == NULL |
1683 | || (*sym_hash)->auxbfd != input_bfd)) | |
1684 | esym += add * isymesz; | |
1685 | else | |
1686 | { | |
1687 | struct coff_link_hash_entry *h; | |
1688 | int i; | |
1689 | ||
1690 | h = NULL; | |
1691 | if (*indexp < 0) | |
1692 | { | |
1693 | h = *sym_hash; | |
8dd53b5c ILT |
1694 | |
1695 | /* The m68k-motorola-sysv assembler will sometimes | |
1696 | generate two symbols with the same name, but only one | |
1697 | will have aux entries. */ | |
1698 | BFD_ASSERT (isymp->n_numaux == 0 | |
1699 | || h->numaux == isymp->n_numaux); | |
69645d10 ILT |
1700 | } |
1701 | ||
1702 | esym += isymesz; | |
1703 | ||
1704 | if (h == NULL) | |
1705 | outsym += osymesz; | |
1706 | ||
1707 | /* Handle the aux entries. This handling is based on | |
1708 | coff_pointerize_aux. I don't know if it always correct. */ | |
1709 | for (i = 0; i < isymp->n_numaux && esym < esym_end; i++) | |
1710 | { | |
1711 | union internal_auxent aux; | |
1712 | union internal_auxent *auxp; | |
1713 | ||
1714 | if (h != NULL) | |
1715 | auxp = h->aux + i; | |
1716 | else | |
1717 | { | |
1718 | bfd_coff_swap_aux_in (input_bfd, (PTR) esym, isymp->n_type, | |
1719 | isymp->n_sclass, i, isymp->n_numaux, | |
1720 | (PTR) &aux); | |
1721 | auxp = &aux; | |
1722 | } | |
1723 | ||
1724 | if (isymp->n_sclass == C_FILE) | |
1725 | { | |
1726 | /* If this is a long filename, we must put it in the | |
1727 | string table. */ | |
d25079a0 SC |
1728 | if (auxp->x_file.x_n.x_zeroes == 0 |
1729 | && auxp->x_file.x_n.x_offset != 0) | |
69645d10 ILT |
1730 | { |
1731 | const char *filename; | |
1732 | bfd_size_type indx; | |
1733 | ||
1734 | BFD_ASSERT (auxp->x_file.x_n.x_offset | |
1735 | >= STRING_SIZE_SIZE); | |
1736 | if (strings == NULL) | |
1737 | { | |
ff31ebda | 1738 | strings = _bfd_coff_read_string_table (input_bfd); |
69645d10 ILT |
1739 | if (strings == NULL) |
1740 | return false; | |
1741 | } | |
1742 | filename = strings + auxp->x_file.x_n.x_offset; | |
1743 | indx = _bfd_stringtab_add (finfo->strtab, filename, | |
1744 | hash, copy); | |
1745 | if (indx == (bfd_size_type) -1) | |
1746 | return false; | |
1747 | auxp->x_file.x_n.x_offset = STRING_SIZE_SIZE + indx; | |
1748 | } | |
1749 | } | |
1750 | else if (isymp->n_sclass != C_STAT || isymp->n_type != T_NULL) | |
1751 | { | |
ae115e51 | 1752 | unsigned long indx; |
69645d10 ILT |
1753 | |
1754 | if (ISFCN (isymp->n_type) | |
1755 | || ISTAG (isymp->n_sclass) | |
d6e0e2f7 ILT |
1756 | || isymp->n_sclass == C_BLOCK |
1757 | || isymp->n_sclass == C_FCN) | |
69645d10 ILT |
1758 | { |
1759 | indx = auxp->x_sym.x_fcnary.x_fcn.x_endndx.l; | |
1760 | if (indx > 0 | |
1761 | && indx < obj_raw_syment_count (input_bfd)) | |
1762 | { | |
1763 | /* We look forward through the symbol for | |
1764 | the index of the next symbol we are going | |
1765 | to include. I don't know if this is | |
1766 | entirely right. */ | |
7ec49f91 ILT |
1767 | while ((finfo->sym_indices[indx] < 0 |
1768 | || ((bfd_size_type) finfo->sym_indices[indx] | |
1769 | < syment_base)) | |
69645d10 ILT |
1770 | && indx < obj_raw_syment_count (input_bfd)) |
1771 | ++indx; | |
1772 | if (indx >= obj_raw_syment_count (input_bfd)) | |
1773 | indx = output_index; | |
1774 | else | |
1775 | indx = finfo->sym_indices[indx]; | |
1776 | auxp->x_sym.x_fcnary.x_fcn.x_endndx.l = indx; | |
1777 | } | |
1778 | } | |
1779 | ||
1780 | indx = auxp->x_sym.x_tagndx.l; | |
1781 | if (indx > 0 && indx < obj_raw_syment_count (input_bfd)) | |
1782 | { | |
ae115e51 ILT |
1783 | long symindx; |
1784 | ||
1785 | symindx = finfo->sym_indices[indx]; | |
1786 | if (symindx < 0) | |
69645d10 ILT |
1787 | auxp->x_sym.x_tagndx.l = 0; |
1788 | else | |
ae115e51 | 1789 | auxp->x_sym.x_tagndx.l = symindx; |
69645d10 | 1790 | } |
d6e0e2f7 ILT |
1791 | |
1792 | /* The .bf symbols are supposed to be linked through | |
1793 | the endndx field. We need to carry this list | |
1794 | across object files. */ | |
1795 | if (i == 0 | |
1796 | && h == NULL | |
1797 | && isymp->n_sclass == C_FCN | |
1798 | && (isymp->_n._n_n._n_zeroes != 0 | |
1799 | || isymp->_n._n_n._n_offset == 0) | |
1800 | && isymp->_n._n_name[0] == '.' | |
1801 | && isymp->_n._n_name[1] == 'b' | |
1802 | && isymp->_n._n_name[2] == 'f' | |
1803 | && isymp->_n._n_name[3] == '\0') | |
1804 | { | |
1805 | if (finfo->last_bf_index != -1) | |
1806 | { | |
1807 | finfo->last_bf.x_sym.x_fcnary.x_fcn.x_endndx.l = | |
1808 | *indexp; | |
1809 | ||
1810 | if ((bfd_size_type) finfo->last_bf_index | |
1811 | >= syment_base) | |
1812 | { | |
1813 | PTR auxout; | |
1814 | ||
1815 | /* The last .bf symbol is in this input | |
1816 | file. This will only happen if the | |
1817 | assembler did not set up the .bf | |
1818 | endndx symbols correctly. */ | |
1819 | auxout = (PTR) (finfo->outsyms | |
1820 | + ((finfo->last_bf_index | |
1821 | - syment_base) | |
1822 | * osymesz)); | |
1823 | bfd_coff_swap_aux_out (output_bfd, | |
1824 | (PTR) &finfo->last_bf, | |
1825 | isymp->n_type, | |
1826 | isymp->n_sclass, | |
1827 | 0, isymp->n_numaux, | |
1828 | auxout); | |
1829 | } | |
1830 | else | |
1831 | { | |
1832 | /* We have already written out the last | |
1833 | .bf aux entry. We need to write it | |
1834 | out again. We borrow *outsym | |
1835 | temporarily. FIXME: This case should | |
1836 | be made faster. */ | |
1837 | bfd_coff_swap_aux_out (output_bfd, | |
1838 | (PTR) &finfo->last_bf, | |
1839 | isymp->n_type, | |
1840 | isymp->n_sclass, | |
1841 | 0, isymp->n_numaux, | |
1842 | (PTR) outsym); | |
1843 | if (bfd_seek (output_bfd, | |
1844 | (obj_sym_filepos (output_bfd) | |
1845 | + finfo->last_bf_index * osymesz), | |
1846 | SEEK_SET) != 0 | |
1847 | || bfd_write (outsym, osymesz, 1, | |
1848 | output_bfd) != osymesz) | |
1849 | return false; | |
1850 | } | |
1851 | } | |
1852 | ||
1853 | if (auxp->x_sym.x_fcnary.x_fcn.x_endndx.l != 0) | |
1854 | finfo->last_bf_index = -1; | |
1855 | else | |
1856 | { | |
1857 | /* The endndx field of this aux entry must | |
1858 | be updated with the symbol number of the | |
1859 | next .bf symbol. */ | |
1860 | finfo->last_bf = *auxp; | |
4ad842aa ILT |
1861 | finfo->last_bf_index = (((outsym - finfo->outsyms) |
1862 | / osymesz) | |
1863 | + syment_base); | |
d6e0e2f7 ILT |
1864 | } |
1865 | } | |
69645d10 ILT |
1866 | } |
1867 | ||
1868 | if (h == NULL) | |
1869 | { | |
1870 | bfd_coff_swap_aux_out (output_bfd, (PTR) auxp, isymp->n_type, | |
1871 | isymp->n_sclass, i, isymp->n_numaux, | |
1872 | (PTR) outsym); | |
1873 | outsym += osymesz; | |
1874 | } | |
1875 | ||
1876 | esym += isymesz; | |
1877 | } | |
1878 | } | |
1879 | ||
1880 | indexp += add; | |
1881 | isymp += add; | |
1882 | sym_hash += add; | |
1883 | } | |
1884 | ||
1885 | /* Relocate the line numbers, unless we are stripping them. */ | |
1886 | if (finfo->info->strip == strip_none | |
1887 | || finfo->info->strip == strip_some) | |
1888 | { | |
1889 | for (o = input_bfd->sections; o != NULL; o = o->next) | |
1890 | { | |
1891 | bfd_vma offset; | |
1892 | bfd_byte *eline; | |
1893 | bfd_byte *elineend; | |
1894 | ||
3ea928f5 SC |
1895 | /* FIXME: If SEC_HAS_CONTENTS is not for the section, then |
1896 | build_link_order in ldwrite.c will not have created a | |
1897 | link order, which means that we will not have seen this | |
1898 | input section in _bfd_coff_final_link, which means that | |
1899 | we will not have allocated space for the line numbers of | |
1900 | this section. I don't think line numbers can be | |
1901 | meaningful for a section which does not have | |
1902 | SEC_HAS_CONTENTS set, but, if they do, this must be | |
1903 | changed. */ | |
1904 | if (o->lineno_count == 0 | |
1905 | || (o->output_section->flags & SEC_HAS_CONTENTS) == 0) | |
69645d10 ILT |
1906 | continue; |
1907 | ||
1908 | if (bfd_seek (input_bfd, o->line_filepos, SEEK_SET) != 0 | |
1909 | || bfd_read (finfo->linenos, linesz, o->lineno_count, | |
1910 | input_bfd) != linesz * o->lineno_count) | |
1911 | return false; | |
1912 | ||
1913 | offset = o->output_section->vma + o->output_offset - o->vma; | |
1914 | eline = finfo->linenos; | |
1915 | elineend = eline + linesz * o->lineno_count; | |
1916 | for (; eline < elineend; eline += linesz) | |
1917 | { | |
1918 | struct internal_lineno iline; | |
1919 | ||
1920 | bfd_coff_swap_lineno_in (input_bfd, (PTR) eline, (PTR) &iline); | |
1921 | ||
1922 | if (iline.l_lnno != 0) | |
1923 | iline.l_addr.l_paddr += offset; | |
1924 | else if (iline.l_addr.l_symndx >= 0 | |
ae115e51 | 1925 | && ((unsigned long) iline.l_addr.l_symndx |
69645d10 ILT |
1926 | < obj_raw_syment_count (input_bfd))) |
1927 | { | |
1928 | long indx; | |
1929 | ||
1930 | indx = finfo->sym_indices[iline.l_addr.l_symndx]; | |
1931 | ||
1932 | if (indx < 0) | |
1933 | { | |
1934 | /* These line numbers are attached to a symbol | |
1935 | which we are stripping. We should really | |
1936 | just discard the line numbers, but that would | |
1937 | be a pain because we have already counted | |
1938 | them. */ | |
1939 | indx = 0; | |
1940 | } | |
1941 | else | |
1942 | { | |
1943 | struct internal_syment is; | |
1944 | union internal_auxent ia; | |
1945 | ||
1946 | /* Fix up the lnnoptr field in the aux entry of | |
1947 | the symbol. It turns out that we can't do | |
1948 | this when we modify the symbol aux entries, | |
1949 | because gas sometimes screws up the lnnoptr | |
1950 | field and makes it an offset from the start | |
1951 | of the line numbers rather than an absolute | |
1952 | file index. */ | |
1953 | bfd_coff_swap_sym_in (output_bfd, | |
1954 | (PTR) (finfo->outsyms | |
1955 | + ((indx - syment_base) | |
1956 | * osymesz)), | |
1957 | (PTR) &is); | |
1958 | if ((ISFCN (is.n_type) | |
1959 | || is.n_sclass == C_BLOCK) | |
1960 | && is.n_numaux >= 1) | |
1961 | { | |
1962 | PTR auxptr; | |
1963 | ||
1964 | auxptr = (PTR) (finfo->outsyms | |
1965 | + ((indx - syment_base + 1) | |
1966 | * osymesz)); | |
1967 | bfd_coff_swap_aux_in (output_bfd, auxptr, | |
1968 | is.n_type, is.n_sclass, | |
1969 | 0, is.n_numaux, (PTR) &ia); | |
1970 | ia.x_sym.x_fcnary.x_fcn.x_lnnoptr = | |
1971 | (o->output_section->line_filepos | |
1972 | + o->output_section->lineno_count * linesz | |
1973 | + eline - finfo->linenos); | |
1974 | bfd_coff_swap_aux_out (output_bfd, (PTR) &ia, | |
1975 | is.n_type, is.n_sclass, 0, | |
1976 | is.n_numaux, auxptr); | |
1977 | } | |
1978 | } | |
1979 | ||
1980 | iline.l_addr.l_symndx = indx; | |
1981 | } | |
1982 | ||
1983 | bfd_coff_swap_lineno_out (output_bfd, (PTR) &iline, (PTR) eline); | |
1984 | } | |
1985 | ||
1986 | if (bfd_seek (output_bfd, | |
1987 | (o->output_section->line_filepos | |
1988 | + o->output_section->lineno_count * linesz), | |
1989 | SEEK_SET) != 0 | |
1990 | || bfd_write (finfo->linenos, linesz, o->lineno_count, | |
1991 | output_bfd) != linesz * o->lineno_count) | |
1992 | return false; | |
1993 | ||
1994 | o->output_section->lineno_count += o->lineno_count; | |
1995 | } | |
1996 | } | |
1997 | ||
1998 | /* If we swapped out a C_FILE symbol, guess that the next C_FILE | |
1999 | symbol will be the first symbol in the next input file. In the | |
2000 | normal case, this will save us from writing out the C_FILE symbol | |
2001 | again. */ | |
d25079a0 | 2002 | if (finfo->last_file_index != -1 |
ae115e51 | 2003 | && (bfd_size_type) finfo->last_file_index >= syment_base) |
69645d10 ILT |
2004 | { |
2005 | finfo->last_file.n_value = output_index; | |
2006 | bfd_coff_swap_sym_out (output_bfd, (PTR) &finfo->last_file, | |
2007 | (PTR) (finfo->outsyms | |
d25079a0 SC |
2008 | + ((finfo->last_file_index - syment_base) |
2009 | * osymesz))); | |
69645d10 ILT |
2010 | } |
2011 | ||
2012 | /* Write the modified symbols to the output file. */ | |
2013 | if (outsym > finfo->outsyms) | |
2014 | { | |
2015 | if (bfd_seek (output_bfd, | |
2016 | obj_sym_filepos (output_bfd) + syment_base * osymesz, | |
2017 | SEEK_SET) != 0 | |
ae115e51 ILT |
2018 | || (bfd_write (finfo->outsyms, outsym - finfo->outsyms, 1, |
2019 | output_bfd) | |
2020 | != (bfd_size_type) (outsym - finfo->outsyms))) | |
69645d10 ILT |
2021 | return false; |
2022 | ||
2023 | BFD_ASSERT ((obj_raw_syment_count (output_bfd) | |
2024 | + (outsym - finfo->outsyms) / osymesz) | |
2025 | == output_index); | |
2026 | ||
2027 | obj_raw_syment_count (output_bfd) = output_index; | |
2028 | } | |
2029 | ||
2030 | /* Relocate the contents of each section. */ | |
d25079a0 | 2031 | adjust_symndx = coff_backend_info (input_bfd)->_bfd_coff_adjust_symndx; |
69645d10 ILT |
2032 | for (o = input_bfd->sections; o != NULL; o = o->next) |
2033 | { | |
ff31ebda | 2034 | bfd_byte *contents; |
4ad842aa | 2035 | struct coff_section_tdata *secdata; |
ff31ebda | 2036 | |
ff0e4a93 | 2037 | if (! o->linker_mark) |
7ec49f91 ILT |
2038 | { |
2039 | /* This section was omitted from the link. */ | |
2040 | continue; | |
2041 | } | |
2042 | ||
4ad842aa ILT |
2043 | if ((o->flags & SEC_HAS_CONTENTS) == 0 |
2044 | || (o->_raw_size == 0 && (o->flags & SEC_RELOC) == 0)) | |
aa4b3dc5 ILT |
2045 | { |
2046 | if ((o->flags & SEC_RELOC) != 0 | |
2047 | && o->reloc_count != 0) | |
2048 | { | |
2049 | ((*_bfd_error_handler) | |
2050 | ("%s: relocs in section `%s', but it has no contents", | |
2051 | bfd_get_filename (input_bfd), | |
2052 | bfd_get_section_name (input_bfd, o))); | |
2053 | bfd_set_error (bfd_error_no_contents); | |
2054 | return false; | |
2055 | } | |
2056 | ||
2057 | continue; | |
2058 | } | |
69645d10 | 2059 | |
4ad842aa ILT |
2060 | secdata = coff_section_data (input_bfd, o); |
2061 | if (secdata != NULL && secdata->contents != NULL) | |
2062 | contents = secdata->contents; | |
ff31ebda KR |
2063 | else |
2064 | { | |
2065 | if (! bfd_get_section_contents (input_bfd, o, finfo->contents, | |
2066 | (file_ptr) 0, o->_raw_size)) | |
2067 | return false; | |
2068 | contents = finfo->contents; | |
2069 | } | |
69645d10 ILT |
2070 | |
2071 | if ((o->flags & SEC_RELOC) != 0) | |
2072 | { | |
2073 | int target_index; | |
2074 | struct internal_reloc *internal_relocs; | |
69645d10 ILT |
2075 | struct internal_reloc *irel; |
2076 | ||
2077 | /* Read in the relocs. */ | |
69645d10 | 2078 | target_index = o->output_section->target_index; |
ff31ebda KR |
2079 | internal_relocs = (_bfd_coff_read_internal_relocs |
2080 | (input_bfd, o, false, finfo->external_relocs, | |
2081 | finfo->info->relocateable, | |
2082 | (finfo->info->relocateable | |
2083 | ? (finfo->section_info[target_index].relocs | |
2084 | + o->output_section->reloc_count) | |
2085 | : finfo->internal_relocs))); | |
2086 | if (internal_relocs == NULL) | |
2087 | return false; | |
69645d10 ILT |
2088 | |
2089 | /* Call processor specific code to relocate the section | |
2090 | contents. */ | |
2091 | if (! bfd_coff_relocate_section (output_bfd, finfo->info, | |
2092 | input_bfd, o, | |
ff31ebda | 2093 | contents, |
69645d10 ILT |
2094 | internal_relocs, |
2095 | finfo->internal_syms, | |
2096 | finfo->sec_ptrs)) | |
2097 | return false; | |
2098 | ||
2099 | if (finfo->info->relocateable) | |
2100 | { | |
2101 | bfd_vma offset; | |
2102 | struct internal_reloc *irelend; | |
2103 | struct coff_link_hash_entry **rel_hash; | |
2104 | ||
2105 | offset = o->output_section->vma + o->output_offset - o->vma; | |
69645d10 ILT |
2106 | irel = internal_relocs; |
2107 | irelend = irel + o->reloc_count; | |
2a895595 ILT |
2108 | rel_hash = (finfo->section_info[target_index].rel_hashes |
2109 | + o->output_section->reloc_count); | |
69645d10 ILT |
2110 | for (; irel < irelend; irel++, rel_hash++) |
2111 | { | |
2112 | struct coff_link_hash_entry *h; | |
d25079a0 | 2113 | boolean adjusted; |
69645d10 ILT |
2114 | |
2115 | *rel_hash = NULL; | |
2116 | ||
2117 | /* Adjust the reloc address and symbol index. */ | |
2118 | ||
2119 | irel->r_vaddr += offset; | |
2120 | ||
2a895595 ILT |
2121 | if (irel->r_symndx == -1) |
2122 | continue; | |
2123 | ||
d25079a0 SC |
2124 | if (adjust_symndx) |
2125 | { | |
2126 | if (! (*adjust_symndx) (output_bfd, finfo->info, | |
2127 | input_bfd, o, irel, | |
2128 | &adjusted)) | |
2129 | return false; | |
2130 | if (adjusted) | |
2131 | continue; | |
2132 | } | |
2133 | ||
69645d10 ILT |
2134 | h = obj_coff_sym_hashes (input_bfd)[irel->r_symndx]; |
2135 | if (h != NULL) | |
2136 | { | |
2137 | /* This is a global symbol. */ | |
2138 | if (h->indx >= 0) | |
2139 | irel->r_symndx = h->indx; | |
2140 | else | |
2141 | { | |
2142 | /* This symbol is being written at the end | |
2143 | of the file, and we do not yet know the | |
2144 | symbol index. We save the pointer to the | |
2145 | hash table entry in the rel_hash list. | |
2146 | We set the indx field to -2 to indicate | |
2147 | that this symbol must not be stripped. */ | |
2148 | *rel_hash = h; | |
2149 | h->indx = -2; | |
2150 | } | |
2151 | } | |
2152 | else | |
2153 | { | |
2154 | long indx; | |
2155 | ||
2156 | indx = finfo->sym_indices[irel->r_symndx]; | |
2157 | if (indx != -1) | |
2158 | irel->r_symndx = indx; | |
2159 | else | |
2160 | { | |
2161 | struct internal_syment *is; | |
2162 | const char *name; | |
2163 | char buf[SYMNMLEN + 1]; | |
2164 | ||
2165 | /* This reloc is against a symbol we are | |
e18683b7 NC |
2166 | stripping. This should have been handled |
2167 | by the 'dont_skip_symbol' code in the while | |
2168 | loop at the top of this function. */ | |
2169 | ||
69645d10 ILT |
2170 | is = finfo->internal_syms + irel->r_symndx; |
2171 | ||
ff31ebda KR |
2172 | name = (_bfd_coff_internal_syment_name |
2173 | (input_bfd, is, buf)); | |
2174 | if (name == NULL) | |
2175 | return false; | |
69645d10 ILT |
2176 | |
2177 | if (! ((*finfo->info->callbacks->unattached_reloc) | |
2178 | (finfo->info, name, input_bfd, o, | |
2179 | irel->r_vaddr))) | |
2180 | return false; | |
2181 | } | |
2182 | } | |
2183 | } | |
2184 | ||
2185 | o->output_section->reloc_count += o->reloc_count; | |
2186 | } | |
2187 | } | |
2188 | ||
2189 | /* Write out the modified section contents. */ | |
4ad842aa ILT |
2190 | if (secdata == NULL || secdata->stab_info == NULL) |
2191 | { | |
2192 | if (! bfd_set_section_contents (output_bfd, o->output_section, | |
2193 | contents, o->output_offset, | |
2194 | (o->_cooked_size != 0 | |
2195 | ? o->_cooked_size | |
2196 | : o->_raw_size))) | |
2197 | return false; | |
2198 | } | |
2199 | else | |
2200 | { | |
e18683b7 NC |
2201 | if (! (_bfd_write_section_stabs |
2202 | (output_bfd, &coff_hash_table (finfo->info)->stab_info, | |
2203 | o, &secdata->stab_info, contents))) | |
4ad842aa ILT |
2204 | return false; |
2205 | } | |
69645d10 ILT |
2206 | } |
2207 | ||
2208 | if (! finfo->info->keep_memory) | |
2209 | { | |
ff31ebda | 2210 | if (! _bfd_coff_free_symbols (input_bfd)) |
69645d10 ILT |
2211 | return false; |
2212 | } | |
2213 | ||
2214 | return true; | |
2215 | } | |
2216 | ||
2217 | /* Write out a global symbol. Called via coff_link_hash_traverse. */ | |
2218 | ||
13d1a4dd | 2219 | boolean |
bdd2e7f1 | 2220 | _bfd_coff_write_global_sym (h, data) |
69645d10 ILT |
2221 | struct coff_link_hash_entry *h; |
2222 | PTR data; | |
2223 | { | |
2224 | struct coff_final_link_info *finfo = (struct coff_final_link_info *) data; | |
2225 | bfd *output_bfd; | |
2226 | struct internal_syment isym; | |
2227 | bfd_size_type symesz; | |
2228 | unsigned int i; | |
2229 | ||
2230 | output_bfd = finfo->output_bfd; | |
2231 | ||
2232 | if (h->indx >= 0) | |
2233 | return true; | |
2234 | ||
2235 | if (h->indx != -2 | |
2236 | && (finfo->info->strip == strip_all | |
2237 | || (finfo->info->strip == strip_some | |
2238 | && (bfd_hash_lookup (finfo->info->keep_hash, | |
2239 | h->root.root.string, false, false) | |
2240 | == NULL)))) | |
2241 | return true; | |
2242 | ||
2243 | switch (h->root.type) | |
2244 | { | |
2245 | default: | |
2246 | case bfd_link_hash_new: | |
2247 | abort (); | |
2248 | return false; | |
2249 | ||
2250 | case bfd_link_hash_undefined: | |
d25079a0 | 2251 | case bfd_link_hash_undefweak: |
69645d10 ILT |
2252 | isym.n_scnum = N_UNDEF; |
2253 | isym.n_value = 0; | |
2254 | break; | |
2255 | ||
2256 | case bfd_link_hash_defined: | |
d25079a0 | 2257 | case bfd_link_hash_defweak: |
69645d10 ILT |
2258 | { |
2259 | asection *sec; | |
2260 | ||
2261 | sec = h->root.u.def.section->output_section; | |
2262 | if (bfd_is_abs_section (sec)) | |
2263 | isym.n_scnum = N_ABS; | |
2264 | else | |
2265 | isym.n_scnum = sec->target_index; | |
2266 | isym.n_value = (h->root.u.def.value | |
69645d10 | 2267 | + h->root.u.def.section->output_offset); |
20a9631a ILT |
2268 | if (! obj_pe (finfo->output_bfd)) |
2269 | isym.n_value += sec->vma; | |
69645d10 ILT |
2270 | } |
2271 | break; | |
2272 | ||
2273 | case bfd_link_hash_common: | |
2274 | isym.n_scnum = N_UNDEF; | |
2275 | isym.n_value = h->root.u.c.size; | |
2276 | break; | |
2277 | ||
2278 | case bfd_link_hash_indirect: | |
2279 | case bfd_link_hash_warning: | |
2280 | /* Just ignore these. They can't be handled anyhow. */ | |
2281 | return true; | |
2282 | } | |
2283 | ||
2284 | if (strlen (h->root.root.string) <= SYMNMLEN) | |
2285 | strncpy (isym._n._n_name, h->root.root.string, SYMNMLEN); | |
2286 | else | |
2287 | { | |
2288 | boolean hash; | |
2289 | bfd_size_type indx; | |
2290 | ||
2291 | hash = true; | |
2292 | if ((output_bfd->flags & BFD_TRADITIONAL_FORMAT) != 0) | |
2293 | hash = false; | |
2294 | indx = _bfd_stringtab_add (finfo->strtab, h->root.root.string, hash, | |
2295 | false); | |
2296 | if (indx == (bfd_size_type) -1) | |
2297 | { | |
2298 | finfo->failed = true; | |
2299 | return false; | |
2300 | } | |
2301 | isym._n._n_n._n_zeroes = 0; | |
2302 | isym._n._n_n._n_offset = STRING_SIZE_SIZE + indx; | |
2303 | } | |
2304 | ||
2305 | isym.n_sclass = h->class; | |
2306 | isym.n_type = h->type; | |
2307 | ||
2308 | if (isym.n_sclass == C_NULL) | |
2309 | isym.n_sclass = C_EXT; | |
2310 | ||
e074d05e FF |
2311 | /* If doing task linking and this is the pass where we convert defined globals to |
2312 | statics, then do that conversion now. If the symbol is not being converted, | |
2313 | just ignore it and it will be output during a later pass. */ | |
2314 | if (finfo->global_to_static) | |
2315 | { | |
2316 | if (isym.n_sclass != C_EXT) | |
2317 | { | |
2318 | return true; | |
2319 | } | |
2320 | isym.n_sclass = C_STAT; | |
2321 | } | |
2322 | ||
69645d10 ILT |
2323 | isym.n_numaux = h->numaux; |
2324 | ||
2325 | bfd_coff_swap_sym_out (output_bfd, (PTR) &isym, (PTR) finfo->outsyms); | |
2326 | ||
2327 | symesz = bfd_coff_symesz (output_bfd); | |
2328 | ||
2329 | if (bfd_seek (output_bfd, | |
2330 | (obj_sym_filepos (output_bfd) | |
2331 | + obj_raw_syment_count (output_bfd) * symesz), | |
2332 | SEEK_SET) != 0 | |
2333 | || bfd_write (finfo->outsyms, symesz, 1, output_bfd) != symesz) | |
2334 | { | |
2335 | finfo->failed = true; | |
2336 | return false; | |
2337 | } | |
2338 | ||
2339 | h->indx = obj_raw_syment_count (output_bfd); | |
2340 | ||
2341 | ++obj_raw_syment_count (output_bfd); | |
2342 | ||
2343 | /* Write out any associated aux entries. There normally will be | |
2344 | none. If there are any, I have no idea how to modify them. */ | |
2345 | for (i = 0; i < isym.n_numaux; i++) | |
2346 | { | |
2347 | bfd_coff_swap_aux_out (output_bfd, (PTR) (h->aux + i), isym.n_type, | |
2348 | isym.n_sclass, i, isym.n_numaux, | |
2349 | (PTR) finfo->outsyms); | |
2350 | if (bfd_write (finfo->outsyms, symesz, 1, output_bfd) != symesz) | |
2351 | { | |
2352 | finfo->failed = true; | |
2353 | return false; | |
2354 | } | |
2355 | ++obj_raw_syment_count (output_bfd); | |
2356 | } | |
2357 | ||
2358 | return true; | |
2359 | } | |
2360 | ||
e074d05e FF |
2361 | /* Write out task global symbols, converting them to statics. Called |
2362 | via coff_link_hash_traverse. Calls bfd_coff_write_global_sym to do | |
2363 | the dirty work, if the symbol we are processing needs conversion. */ | |
2364 | ||
2365 | boolean | |
2366 | _bfd_coff_write_task_globals (h, data) | |
2367 | struct coff_link_hash_entry *h; | |
2368 | PTR data; | |
2369 | { | |
2370 | struct coff_final_link_info *finfo = (struct coff_final_link_info *) data; | |
2371 | boolean rtnval = true; | |
2372 | ||
2373 | if (h->indx < 0) | |
2374 | { | |
2375 | switch (h->root.type) | |
2376 | { | |
2377 | case bfd_link_hash_defined: | |
2378 | case bfd_link_hash_defweak: | |
2379 | finfo->global_to_static = true; | |
2380 | rtnval = _bfd_coff_write_global_sym (h, data); | |
2381 | finfo->global_to_static = false; | |
2382 | break; | |
2383 | } | |
2384 | } | |
2385 | return (rtnval); | |
2386 | } | |
2387 | ||
69645d10 ILT |
2388 | /* Handle a link order which is supposed to generate a reloc. */ |
2389 | ||
13d1a4dd | 2390 | boolean |
bdd2e7f1 | 2391 | _bfd_coff_reloc_link_order (output_bfd, finfo, output_section, link_order) |
69645d10 ILT |
2392 | bfd *output_bfd; |
2393 | struct coff_final_link_info *finfo; | |
2394 | asection *output_section; | |
2395 | struct bfd_link_order *link_order; | |
2396 | { | |
d25079a0 | 2397 | reloc_howto_type *howto; |
69645d10 ILT |
2398 | struct internal_reloc *irel; |
2399 | struct coff_link_hash_entry **rel_hash_ptr; | |
2400 | ||
2401 | howto = bfd_reloc_type_lookup (output_bfd, link_order->u.reloc.p->reloc); | |
2402 | if (howto == NULL) | |
2403 | { | |
2404 | bfd_set_error (bfd_error_bad_value); | |
2405 | return false; | |
2406 | } | |
2407 | ||
2408 | if (link_order->u.reloc.p->addend != 0) | |
2409 | { | |
2410 | bfd_size_type size; | |
2411 | bfd_byte *buf; | |
2412 | bfd_reloc_status_type rstat; | |
2413 | boolean ok; | |
2414 | ||
2415 | size = bfd_get_reloc_size (howto); | |
2416 | buf = (bfd_byte *) bfd_zmalloc (size); | |
2417 | if (buf == NULL) | |
a9713b91 | 2418 | return false; |
69645d10 ILT |
2419 | |
2420 | rstat = _bfd_relocate_contents (howto, output_bfd, | |
2421 | link_order->u.reloc.p->addend, buf); | |
2422 | switch (rstat) | |
2423 | { | |
2424 | case bfd_reloc_ok: | |
2425 | break; | |
2426 | default: | |
2427 | case bfd_reloc_outofrange: | |
2428 | abort (); | |
2429 | case bfd_reloc_overflow: | |
2430 | if (! ((*finfo->info->callbacks->reloc_overflow) | |
2431 | (finfo->info, | |
2432 | (link_order->type == bfd_section_reloc_link_order | |
2433 | ? bfd_section_name (output_bfd, | |
2434 | link_order->u.reloc.p->u.section) | |
2435 | : link_order->u.reloc.p->u.name), | |
2436 | howto->name, link_order->u.reloc.p->addend, | |
2437 | (bfd *) NULL, (asection *) NULL, (bfd_vma) 0))) | |
2438 | { | |
2439 | free (buf); | |
2440 | return false; | |
2441 | } | |
2442 | break; | |
2443 | } | |
2444 | ok = bfd_set_section_contents (output_bfd, output_section, (PTR) buf, | |
2445 | (file_ptr) link_order->offset, size); | |
2446 | free (buf); | |
2447 | if (! ok) | |
2448 | return false; | |
2449 | } | |
2450 | ||
2451 | /* Store the reloc information in the right place. It will get | |
2452 | swapped and written out at the end of the final_link routine. */ | |
2453 | ||
2454 | irel = (finfo->section_info[output_section->target_index].relocs | |
2455 | + output_section->reloc_count); | |
2456 | rel_hash_ptr = (finfo->section_info[output_section->target_index].rel_hashes | |
2457 | + output_section->reloc_count); | |
2458 | ||
2459 | memset (irel, 0, sizeof (struct internal_reloc)); | |
2460 | *rel_hash_ptr = NULL; | |
2461 | ||
2462 | irel->r_vaddr = output_section->vma + link_order->offset; | |
2463 | ||
2464 | if (link_order->type == bfd_section_reloc_link_order) | |
2465 | { | |
2466 | /* We need to somehow locate a symbol in the right section. The | |
2467 | symbol must either have a value of zero, or we must adjust | |
2468 | the addend by the value of the symbol. FIXME: Write this | |
2469 | when we need it. The old linker couldn't handle this anyhow. */ | |
2470 | abort (); | |
2471 | *rel_hash_ptr = NULL; | |
2472 | irel->r_symndx = 0; | |
2473 | } | |
2474 | else | |
2475 | { | |
2476 | struct coff_link_hash_entry *h; | |
2477 | ||
7ec49f91 ILT |
2478 | h = ((struct coff_link_hash_entry *) |
2479 | bfd_wrapped_link_hash_lookup (output_bfd, finfo->info, | |
2480 | link_order->u.reloc.p->u.name, | |
2481 | false, false, true)); | |
69645d10 ILT |
2482 | if (h != NULL) |
2483 | { | |
2484 | if (h->indx >= 0) | |
2485 | irel->r_symndx = h->indx; | |
2486 | else | |
2487 | { | |
2488 | /* Set the index to -2 to force this symbol to get | |
2489 | written out. */ | |
2490 | h->indx = -2; | |
2491 | *rel_hash_ptr = h; | |
2492 | irel->r_symndx = 0; | |
2493 | } | |
2494 | } | |
2495 | else | |
2496 | { | |
2497 | if (! ((*finfo->info->callbacks->unattached_reloc) | |
2498 | (finfo->info, link_order->u.reloc.p->u.name, (bfd *) NULL, | |
2499 | (asection *) NULL, (bfd_vma) 0))) | |
2500 | return false; | |
2501 | irel->r_symndx = 0; | |
2502 | } | |
2503 | } | |
2504 | ||
2505 | /* FIXME: Is this always right? */ | |
2506 | irel->r_type = howto->type; | |
2507 | ||
2508 | /* r_size is only used on the RS/6000, which needs its own linker | |
2509 | routines anyhow. r_extern is only used for ECOFF. */ | |
2510 | ||
2511 | /* FIXME: What is the right value for r_offset? Is zero OK? */ | |
2512 | ||
2513 | ++output_section->reloc_count; | |
2514 | ||
2515 | return true; | |
2516 | } | |
2a895595 ILT |
2517 | |
2518 | /* A basic reloc handling routine which may be used by processors with | |
2519 | simple relocs. */ | |
2520 | ||
2521 | boolean | |
2522 | _bfd_coff_generic_relocate_section (output_bfd, info, input_bfd, | |
2523 | input_section, contents, relocs, syms, | |
2524 | sections) | |
2525 | bfd *output_bfd; | |
2526 | struct bfd_link_info *info; | |
2527 | bfd *input_bfd; | |
2528 | asection *input_section; | |
2529 | bfd_byte *contents; | |
2530 | struct internal_reloc *relocs; | |
2531 | struct internal_syment *syms; | |
2532 | asection **sections; | |
2533 | { | |
2534 | struct internal_reloc *rel; | |
2535 | struct internal_reloc *relend; | |
2536 | ||
2537 | rel = relocs; | |
2538 | relend = rel + input_section->reloc_count; | |
2539 | for (; rel < relend; rel++) | |
2540 | { | |
2541 | long symndx; | |
2542 | struct coff_link_hash_entry *h; | |
2543 | struct internal_syment *sym; | |
2544 | bfd_vma addend; | |
2545 | bfd_vma val; | |
d25079a0 | 2546 | reloc_howto_type *howto; |
2a895595 ILT |
2547 | bfd_reloc_status_type rstat; |
2548 | ||
2549 | symndx = rel->r_symndx; | |
2550 | ||
2551 | if (symndx == -1) | |
2552 | { | |
2553 | h = NULL; | |
2554 | sym = NULL; | |
2555 | } | |
2556 | else | |
2557 | { | |
2558 | h = obj_coff_sym_hashes (input_bfd)[symndx]; | |
2559 | sym = syms + symndx; | |
2560 | } | |
2561 | ||
2562 | /* COFF treats common symbols in one of two ways. Either the | |
2563 | size of the symbol is included in the section contents, or it | |
2564 | is not. We assume that the size is not included, and force | |
2565 | the rtype_to_howto function to adjust the addend as needed. */ | |
d25079a0 | 2566 | |
2a895595 ILT |
2567 | if (sym != NULL && sym->n_scnum != 0) |
2568 | addend = - sym->n_value; | |
2569 | else | |
2570 | addend = 0; | |
2571 | ||
d25079a0 | 2572 | |
2a895595 ILT |
2573 | howto = bfd_coff_rtype_to_howto (input_bfd, input_section, rel, h, |
2574 | sym, &addend); | |
2575 | if (howto == NULL) | |
2576 | return false; | |
2577 | ||
5a50eec6 ILT |
2578 | /* If we are doing a relocateable link, then we can just ignore |
2579 | a PC relative reloc that is pcrel_offset. It will already | |
e18683b7 NC |
2580 | have the correct value. If this is not a relocateable link, |
2581 | then we should ignore the symbol value. */ | |
2582 | if (howto->pc_relative && howto->pcrel_offset) | |
2583 | { | |
2584 | if (info->relocateable) | |
2585 | continue; | |
2586 | if (sym != NULL && sym->n_scnum != 0) | |
2587 | addend += sym->n_value; | |
2588 | } | |
5a50eec6 | 2589 | |
2a895595 ILT |
2590 | val = 0; |
2591 | ||
2592 | if (h == NULL) | |
2593 | { | |
2594 | asection *sec; | |
2595 | ||
2596 | if (symndx == -1) | |
2597 | { | |
2598 | sec = bfd_abs_section_ptr; | |
2599 | val = 0; | |
2600 | } | |
2601 | else | |
2602 | { | |
2603 | sec = sections[symndx]; | |
d25079a0 | 2604 | val = (sec->output_section->vma |
2a895595 | 2605 | + sec->output_offset |
20a9631a ILT |
2606 | + sym->n_value); |
2607 | if (! obj_pe (output_bfd)) | |
2608 | val -= sec->vma; | |
2a895595 ILT |
2609 | } |
2610 | } | |
2611 | else | |
2612 | { | |
d25079a0 SC |
2613 | if (h->root.type == bfd_link_hash_defined |
2614 | || h->root.type == bfd_link_hash_defweak) | |
2a895595 ILT |
2615 | { |
2616 | asection *sec; | |
2617 | ||
2618 | sec = h->root.u.def.section; | |
2619 | val = (h->root.u.def.value | |
2620 | + sec->output_section->vma | |
2621 | + sec->output_offset); | |
d25079a0 | 2622 | } |
ff31ebda | 2623 | |
2a895595 ILT |
2624 | else if (! info->relocateable) |
2625 | { | |
2626 | if (! ((*info->callbacks->undefined_symbol) | |
2627 | (info, h->root.root.string, input_bfd, input_section, | |
2628 | rel->r_vaddr - input_section->vma))) | |
2629 | return false; | |
2630 | } | |
2631 | } | |
2632 | ||
89665c85 SC |
2633 | if (info->base_file) |
2634 | { | |
dff77ed7 SC |
2635 | /* Emit a reloc if the backend thinks it needs it. */ |
2636 | if (sym && pe_data(output_bfd)->in_reloc_p(output_bfd, howto)) | |
89665c85 SC |
2637 | { |
2638 | /* relocation to a symbol in a section which | |
2639 | isn't absolute - we output the address here | |
2640 | to a file */ | |
ece22cd0 | 2641 | bfd_vma addr = rel->r_vaddr |
dff77ed7 | 2642 | - input_section->vma |
89665c85 SC |
2643 | + input_section->output_offset |
2644 | + input_section->output_section->vma; | |
ae115e51 ILT |
2645 | if (coff_data(output_bfd)->pe) |
2646 | addr -= pe_data(output_bfd)->pe_opthdr.ImageBase; | |
8dd53b5c | 2647 | /* FIXME: Shouldn't 4 be sizeof (addr)? */ |
be89267c | 2648 | fwrite (&addr, 1,4, (FILE *) info->base_file); |
89665c85 SC |
2649 | } |
2650 | } | |
d25079a0 | 2651 | |
2a895595 ILT |
2652 | rstat = _bfd_final_link_relocate (howto, input_bfd, input_section, |
2653 | contents, | |
2654 | rel->r_vaddr - input_section->vma, | |
2655 | val, addend); | |
2656 | ||
2657 | switch (rstat) | |
2658 | { | |
2659 | default: | |
2660 | abort (); | |
2661 | case bfd_reloc_ok: | |
2662 | break; | |
5dda6461 ILT |
2663 | case bfd_reloc_outofrange: |
2664 | (*_bfd_error_handler) | |
5a50eec6 | 2665 | ("%s: bad reloc address 0x%lx in section `%s'", |
5dda6461 | 2666 | bfd_get_filename (input_bfd), |
5a50eec6 ILT |
2667 | (unsigned long) rel->r_vaddr, |
2668 | bfd_get_section_name (input_bfd, input_section)); | |
5dda6461 | 2669 | return false; |
2a895595 ILT |
2670 | case bfd_reloc_overflow: |
2671 | { | |
2672 | const char *name; | |
2673 | char buf[SYMNMLEN + 1]; | |
2674 | ||
2675 | if (symndx == -1) | |
2676 | name = "*ABS*"; | |
2677 | else if (h != NULL) | |
2678 | name = h->root.root.string; | |
2a895595 ILT |
2679 | else |
2680 | { | |
ff31ebda KR |
2681 | name = _bfd_coff_internal_syment_name (input_bfd, sym, buf); |
2682 | if (name == NULL) | |
2683 | return false; | |
2a895595 ILT |
2684 | } |
2685 | ||
2686 | if (! ((*info->callbacks->reloc_overflow) | |
2687 | (info, name, howto->name, (bfd_vma) 0, input_bfd, | |
2688 | input_section, rel->r_vaddr - input_section->vma))) | |
2689 | return false; | |
2690 | } | |
2691 | } | |
2692 | } | |
2a895595 ILT |
2693 | return true; |
2694 | } | |
dff77ed7 | 2695 |