Commit | Line | Data |
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69645d10 | 1 | /* COFF specific linker code. |
d25079a0 | 2 | Copyright 1994, 1995 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 | ||
30 | #define STRING_SIZE_SIZE (4) | |
31 | ||
32 | /* Information we keep for each section in the output file when doing | |
33 | a relocateable link. */ | |
34 | ||
35 | struct coff_link_section_info | |
36 | { | |
37 | /* The relocs to be output. */ | |
38 | struct internal_reloc *relocs; | |
39 | /* For each reloc against a global symbol whose index was not known | |
40 | when the reloc was handled, the global hash table entry. */ | |
41 | struct coff_link_hash_entry **rel_hashes; | |
42 | }; | |
43 | ||
44 | /* Information that we pass around while doing the final link step. */ | |
45 | ||
46 | struct coff_final_link_info | |
47 | { | |
48 | /* General link information. */ | |
49 | struct bfd_link_info *info; | |
50 | /* Output BFD. */ | |
51 | bfd *output_bfd; | |
52 | /* Used to indicate failure in traversal routine. */ | |
53 | boolean failed; | |
54 | /* Hash table for long symbol name. */ | |
55 | struct bfd_strtab_hash *strtab; | |
56 | /* When doing a relocateable link, an array of information kept for | |
57 | each output section, indexed by the target_index field. */ | |
58 | struct coff_link_section_info *section_info; | |
59 | /* Symbol index of last C_FILE symbol (-1 if none). */ | |
60 | long last_file_index; | |
61 | /* Contents of last C_FILE symbol. */ | |
62 | struct internal_syment last_file; | |
63 | /* Buffer large enough to hold swapped symbols of any input file. */ | |
64 | struct internal_syment *internal_syms; | |
65 | /* Buffer large enough to hold sections of symbols of any input file. */ | |
66 | asection **sec_ptrs; | |
67 | /* Buffer large enough to hold output indices of symbols of any | |
68 | input file. */ | |
69 | long *sym_indices; | |
70 | /* Buffer large enough to hold output symbols for any input file. */ | |
71 | bfd_byte *outsyms; | |
72 | /* Buffer large enough to hold external line numbers for any input | |
73 | section. */ | |
74 | bfd_byte *linenos; | |
75 | /* Buffer large enough to hold any input section. */ | |
76 | bfd_byte *contents; | |
77 | /* Buffer large enough to hold external relocs of any input section. */ | |
78 | bfd_byte *external_relocs; | |
79 | /* Buffer large enough to hold swapped relocs of any input section. */ | |
80 | struct internal_reloc *internal_relocs; | |
d25079a0 SC |
81 | |
82 | enum bfd_link_subsystem subsystem; | |
83 | bfd_link_stack_heap stack_heap_parameters; | |
69645d10 ILT |
84 | }; |
85 | ||
86 | static struct bfd_hash_entry *coff_link_hash_newfunc | |
87 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); | |
88 | static boolean coff_link_add_object_symbols | |
89 | PARAMS ((bfd *, struct bfd_link_info *)); | |
90 | static boolean coff_link_check_archive_element | |
91 | PARAMS ((bfd *, struct bfd_link_info *, boolean *)); | |
ff31ebda KR |
92 | static INLINE const char *_bfd_coff_internal_syment_name |
93 | PARAMS ((bfd *, const struct internal_syment *, char *)); | |
69645d10 ILT |
94 | static boolean coff_link_check_ar_symbols |
95 | PARAMS ((bfd *, struct bfd_link_info *, boolean *)); | |
96 | static boolean coff_link_add_symbols PARAMS ((bfd *, struct bfd_link_info *)); | |
97 | static boolean coff_link_input_bfd | |
98 | PARAMS ((struct coff_final_link_info *, bfd *)); | |
99 | static boolean coff_write_global_sym | |
100 | PARAMS ((struct coff_link_hash_entry *, PTR)); | |
101 | static boolean coff_reloc_link_order | |
102 | PARAMS ((bfd *, struct coff_final_link_info *, asection *, | |
103 | struct bfd_link_order *)); | |
104 | ||
d25079a0 SC |
105 | |
106 | /* These new data and data types are used to keep track of the .idata$4 and | |
107 | .idata$5 relocations which are put into the .idata section for all of the | |
108 | *.dll input libraries linked in. This is not a great solution, and may | |
109 | break in the future if MS changes the format of its libraries, but it | |
110 | does work for the collection of mstools libraries we are currently working | |
111 | with. The main problem is that there are some new majic symbols defined | |
112 | in the libraries which are non-standard coff and simply aren't handled | |
113 | completely by ld. What has been included here will help finish up the job. | |
114 | Basically, during the link, .idata$4 and .idata$5 pointers are correctly | |
115 | relocated to the image. At the very end of the link, the .idata$2 | |
116 | information is written. This data appears at the beginning of the .idata | |
117 | section and a 'set' of information appears for each *.dll passed in. | |
118 | Each set of information consists of 3 addresses, a pointer to the .idata$4 | |
119 | start, a pointer to .idata$6 (which has the name of the dll), and a pointer | |
120 | to .idata$5 start. The idata$4 and 5 information is a list of pointers | |
121 | which appear to point to the name of various functions found within the dll. | |
122 | When invoked, the loader will write over these names with the correct | |
123 | addresses to use for these functions. | |
124 | Without this 'fix', all information appears correctly except for the | |
125 | addresses of the .idata$4 and 5 starts within the .idata$2 portion of the | |
126 | .idata section. What we will do is to keep track of the dll's processed | |
127 | and the number of functions needed from each dll. From this information | |
128 | we can correctly compute the start of the idata$4 and 5 lists for each | |
129 | dll in the idata section */ | |
130 | static int num_DLLs_done = 0; | |
131 | static int num_DLLs = 0; | |
132 | static int all_entries = 0; | |
133 | struct DLL_struct { | |
134 | const char * DLL_name; | |
135 | int num_entries; | |
136 | }; | |
137 | struct DLL_struct MS_DLL[10]; | |
138 | static bfd_vma idata_4_prev = 0; | |
139 | static bfd_vma idata_5_prev = 0; | |
140 | static bfd_vma add_to_val = 0; | |
141 | ||
142 | ||
143 | ||
69645d10 ILT |
144 | /* Create an entry in a COFF linker hash table. */ |
145 | ||
146 | static struct bfd_hash_entry * | |
147 | coff_link_hash_newfunc (entry, table, string) | |
148 | struct bfd_hash_entry *entry; | |
149 | struct bfd_hash_table *table; | |
150 | const char *string; | |
151 | { | |
152 | struct coff_link_hash_entry *ret = (struct coff_link_hash_entry *) entry; | |
153 | ||
154 | /* Allocate the structure if it has not already been allocated by a | |
155 | subclass. */ | |
156 | if (ret == (struct coff_link_hash_entry *) NULL) | |
157 | ret = ((struct coff_link_hash_entry *) | |
158 | bfd_hash_allocate (table, sizeof (struct coff_link_hash_entry))); | |
159 | if (ret == (struct coff_link_hash_entry *) NULL) | |
160 | { | |
161 | bfd_set_error (bfd_error_no_memory); | |
162 | return (struct bfd_hash_entry *) ret; | |
163 | } | |
164 | ||
165 | /* Call the allocation method of the superclass. */ | |
166 | ret = ((struct coff_link_hash_entry *) | |
167 | _bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret, | |
168 | table, string)); | |
169 | if (ret != (struct coff_link_hash_entry *) NULL) | |
170 | { | |
171 | /* Set local fields. */ | |
172 | ret->indx = -1; | |
173 | ret->type = T_NULL; | |
174 | ret->class = C_NULL; | |
175 | ret->numaux = 0; | |
176 | ret->auxbfd = NULL; | |
177 | ret->aux = NULL; | |
178 | } | |
179 | ||
180 | return (struct bfd_hash_entry *) ret; | |
181 | } | |
182 | ||
183 | /* Create a COFF linker hash table. */ | |
184 | ||
185 | struct bfd_link_hash_table * | |
186 | _bfd_coff_link_hash_table_create (abfd) | |
187 | bfd *abfd; | |
188 | { | |
189 | struct coff_link_hash_table *ret; | |
190 | ||
191 | ret = ((struct coff_link_hash_table *) | |
e3364701 | 192 | bfd_alloc (abfd, sizeof (struct coff_link_hash_table))); |
69645d10 ILT |
193 | if (ret == NULL) |
194 | { | |
195 | bfd_set_error (bfd_error_no_memory); | |
196 | return NULL; | |
197 | } | |
198 | if (! _bfd_link_hash_table_init (&ret->root, abfd, | |
199 | coff_link_hash_newfunc)) | |
200 | { | |
201 | free (ret); | |
202 | return (struct bfd_link_hash_table *) NULL; | |
203 | } | |
204 | return &ret->root; | |
205 | } | |
206 | ||
207 | /* Given a COFF BFD, add symbols to the global hash table as | |
208 | appropriate. */ | |
209 | ||
210 | boolean | |
211 | _bfd_coff_link_add_symbols (abfd, info) | |
212 | bfd *abfd; | |
213 | struct bfd_link_info *info; | |
214 | { | |
215 | switch (bfd_get_format (abfd)) | |
216 | { | |
217 | case bfd_object: | |
218 | return coff_link_add_object_symbols (abfd, info); | |
219 | case bfd_archive: | |
220 | return (_bfd_generic_link_add_archive_symbols | |
221 | (abfd, info, coff_link_check_archive_element)); | |
222 | default: | |
223 | bfd_set_error (bfd_error_wrong_format); | |
224 | return false; | |
225 | } | |
226 | } | |
227 | ||
228 | /* Add symbols from a COFF object file. */ | |
229 | ||
230 | static boolean | |
231 | coff_link_add_object_symbols (abfd, info) | |
232 | bfd *abfd; | |
233 | struct bfd_link_info *info; | |
234 | { | |
ff31ebda | 235 | if (! _bfd_coff_get_external_symbols (abfd)) |
69645d10 ILT |
236 | return false; |
237 | if (! coff_link_add_symbols (abfd, info)) | |
238 | return false; | |
239 | if (! info->keep_memory) | |
240 | { | |
ff31ebda | 241 | if (! _bfd_coff_free_symbols (abfd)) |
69645d10 ILT |
242 | return false; |
243 | } | |
244 | return true; | |
245 | } | |
246 | ||
247 | /* Check a single archive element to see if we need to include it in | |
248 | the link. *PNEEDED is set according to whether this element is | |
249 | needed in the link or not. This is called via | |
250 | _bfd_generic_link_add_archive_symbols. */ | |
251 | ||
252 | static boolean | |
253 | coff_link_check_archive_element (abfd, info, pneeded) | |
254 | bfd *abfd; | |
255 | struct bfd_link_info *info; | |
256 | boolean *pneeded; | |
257 | { | |
ff31ebda | 258 | if (! _bfd_coff_get_external_symbols (abfd)) |
69645d10 ILT |
259 | return false; |
260 | ||
261 | if (! coff_link_check_ar_symbols (abfd, info, pneeded)) | |
262 | return false; | |
263 | ||
264 | if (*pneeded) | |
265 | { | |
266 | if (! coff_link_add_symbols (abfd, info)) | |
267 | return false; | |
268 | } | |
269 | ||
270 | if (! info->keep_memory || ! *pneeded) | |
271 | { | |
ff31ebda | 272 | if (! _bfd_coff_free_symbols (abfd)) |
69645d10 ILT |
273 | return false; |
274 | } | |
275 | ||
276 | return true; | |
277 | } | |
278 | ||
ff31ebda KR |
279 | /* Get the name of a symbol. The caller must pass in a buffer of size |
280 | >= SYMNMLEN + 1. */ | |
69645d10 | 281 | |
ff31ebda KR |
282 | static INLINE const char * |
283 | _bfd_coff_internal_syment_name (abfd, sym, buf) | |
69645d10 | 284 | bfd *abfd; |
ff31ebda KR |
285 | const struct internal_syment *sym; |
286 | char *buf; | |
69645d10 | 287 | { |
ff31ebda KR |
288 | /* FIXME: It's not clear this will work correctly if sizeof |
289 | (_n_zeroes) != 4. */ | |
290 | if (sym->_n._n_n._n_zeroes != 0 | |
291 | || sym->_n._n_n._n_offset == 0) | |
69645d10 | 292 | { |
ff31ebda KR |
293 | memcpy (buf, sym->_n._n_name, SYMNMLEN); |
294 | buf[SYMNMLEN] = '\0'; | |
295 | return buf; | |
69645d10 ILT |
296 | } |
297 | else | |
298 | { | |
ff31ebda | 299 | const char *strings; |
69645d10 | 300 | |
ff31ebda KR |
301 | BFD_ASSERT (sym->_n._n_n._n_offset >= STRING_SIZE_SIZE); |
302 | strings = obj_coff_strings (abfd); | |
303 | if (strings == NULL) | |
304 | { | |
305 | strings = _bfd_coff_read_string_table (abfd); | |
306 | if (strings == NULL) | |
307 | return NULL; | |
308 | } | |
309 | return strings + sym->_n._n_n._n_offset; | |
69645d10 | 310 | } |
69645d10 ILT |
311 | } |
312 | ||
313 | /* Look through the symbols to see if this object file should be | |
314 | included in the link. */ | |
315 | ||
316 | static boolean | |
317 | coff_link_check_ar_symbols (abfd, info, pneeded) | |
318 | bfd *abfd; | |
319 | struct bfd_link_info *info; | |
320 | boolean *pneeded; | |
321 | { | |
322 | boolean (*sym_is_global) PARAMS ((bfd *, struct internal_syment *)); | |
69645d10 ILT |
323 | bfd_size_type symesz; |
324 | bfd_byte *esym; | |
325 | bfd_byte *esym_end; | |
326 | ||
327 | *pneeded = false; | |
328 | ||
329 | sym_is_global = coff_backend_info (abfd)->_bfd_coff_sym_is_global; | |
69645d10 ILT |
330 | |
331 | symesz = bfd_coff_symesz (abfd); | |
332 | esym = (bfd_byte *) obj_coff_external_syms (abfd); | |
333 | esym_end = esym + obj_raw_syment_count (abfd) * symesz; | |
334 | while (esym < esym_end) | |
335 | { | |
336 | struct internal_syment sym; | |
337 | ||
338 | bfd_coff_swap_sym_in (abfd, (PTR) esym, (PTR) &sym); | |
339 | ||
340 | if ((sym.n_sclass == C_EXT | |
341 | || (sym_is_global && (*sym_is_global) (abfd, &sym))) | |
342 | && (sym.n_scnum != 0 || sym.n_value != 0)) | |
343 | { | |
344 | const char *name; | |
345 | char buf[SYMNMLEN + 1]; | |
346 | struct bfd_link_hash_entry *h; | |
347 | ||
348 | /* This symbol is externally visible, and is defined by this | |
349 | object file. */ | |
350 | ||
ff31ebda KR |
351 | name = _bfd_coff_internal_syment_name (abfd, &sym, buf); |
352 | if (name == NULL) | |
353 | return false; | |
69645d10 ILT |
354 | h = bfd_link_hash_lookup (info->hash, name, false, false, true); |
355 | ||
356 | /* We are only interested in symbols that are currently | |
357 | undefined. If a symbol is currently known to be common, | |
358 | COFF linkers do not bring in an object file which defines | |
359 | it. */ | |
360 | if (h != (struct bfd_link_hash_entry *) NULL | |
361 | && h->type == bfd_link_hash_undefined) | |
362 | { | |
363 | if (! (*info->callbacks->add_archive_element) (info, abfd, name)) | |
364 | return false; | |
365 | *pneeded = true; | |
366 | return true; | |
367 | } | |
368 | } | |
369 | ||
370 | esym += (sym.n_numaux + 1) * symesz; | |
371 | } | |
372 | ||
373 | /* We do not need this object file. */ | |
374 | return true; | |
375 | } | |
376 | ||
377 | /* Add all the symbols from an object file to the hash table. */ | |
378 | ||
379 | static boolean | |
380 | coff_link_add_symbols (abfd, info) | |
381 | bfd *abfd; | |
382 | struct bfd_link_info *info; | |
383 | { | |
384 | boolean (*sym_is_global) PARAMS ((bfd *, struct internal_syment *)); | |
69645d10 ILT |
385 | boolean default_copy; |
386 | bfd_size_type symcount; | |
387 | struct coff_link_hash_entry **sym_hash; | |
388 | bfd_size_type symesz; | |
389 | bfd_byte *esym; | |
390 | bfd_byte *esym_end; | |
391 | ||
392 | sym_is_global = coff_backend_info (abfd)->_bfd_coff_sym_is_global; | |
69645d10 ILT |
393 | |
394 | if (info->keep_memory) | |
395 | default_copy = false; | |
396 | else | |
397 | default_copy = true; | |
398 | ||
399 | symcount = obj_raw_syment_count (abfd); | |
400 | ||
401 | /* We keep a list of the linker hash table entries that correspond | |
402 | to particular symbols. */ | |
403 | sym_hash = ((struct coff_link_hash_entry **) | |
404 | bfd_alloc (abfd, | |
405 | ((size_t) symcount | |
406 | * sizeof (struct coff_link_hash_entry *)))); | |
407 | if (sym_hash == NULL && symcount != 0) | |
408 | { | |
409 | bfd_set_error (bfd_error_no_memory); | |
410 | return false; | |
411 | } | |
412 | obj_coff_sym_hashes (abfd) = sym_hash; | |
413 | memset (sym_hash, 0, | |
414 | (size_t) symcount * sizeof (struct coff_link_hash_entry *)); | |
415 | ||
416 | symesz = bfd_coff_symesz (abfd); | |
417 | BFD_ASSERT (symesz == bfd_coff_auxesz (abfd)); | |
418 | esym = (bfd_byte *) obj_coff_external_syms (abfd); | |
419 | esym_end = esym + symcount * symesz; | |
420 | while (esym < esym_end) | |
421 | { | |
422 | struct internal_syment sym; | |
423 | boolean copy; | |
424 | ||
425 | bfd_coff_swap_sym_in (abfd, (PTR) esym, (PTR) &sym); | |
426 | ||
427 | if (sym.n_sclass == C_EXT | |
428 | || (sym_is_global && (*sym_is_global) (abfd, &sym))) | |
429 | { | |
430 | const char *name; | |
431 | char buf[SYMNMLEN + 1]; | |
432 | flagword flags; | |
433 | asection *section; | |
434 | bfd_vma value; | |
435 | ||
436 | /* This symbol is externally visible. */ | |
437 | ||
ff31ebda KR |
438 | name = _bfd_coff_internal_syment_name (abfd, &sym, buf); |
439 | if (name == NULL) | |
440 | return false; | |
441 | ||
442 | /* We must copy the name into memory if we got it from the | |
443 | syment itself, rather than the string table. */ | |
69645d10 | 444 | copy = default_copy; |
ff31ebda KR |
445 | if (sym._n._n_n._n_zeroes != 0 |
446 | || sym._n._n_n._n_offset == 0) | |
447 | copy = true; | |
69645d10 ILT |
448 | |
449 | value = sym.n_value; | |
450 | ||
451 | if (sym.n_scnum == 0) | |
452 | { | |
453 | if (value == 0) | |
454 | { | |
455 | flags = 0; | |
456 | section = bfd_und_section_ptr; | |
457 | } | |
458 | else | |
459 | { | |
460 | flags = BSF_GLOBAL; | |
461 | section = bfd_com_section_ptr; | |
462 | } | |
463 | } | |
464 | else | |
465 | { | |
466 | flags = BSF_EXPORT | BSF_GLOBAL; | |
467 | section = coff_section_from_bfd_index (abfd, sym.n_scnum); | |
468 | value -= section->vma; | |
469 | } | |
470 | ||
471 | if (! (_bfd_generic_link_add_one_symbol | |
472 | (info, abfd, name, flags, section, value, | |
473 | (const char *) NULL, copy, false, | |
474 | (struct bfd_link_hash_entry **) sym_hash))) | |
475 | return false; | |
476 | ||
477 | if (info->hash->creator->flavour == bfd_get_flavour (abfd)) | |
478 | { | |
479 | if (((*sym_hash)->class == C_NULL | |
480 | && (*sym_hash)->type == T_NULL) | |
481 | || sym.n_scnum != 0 | |
482 | || (sym.n_value != 0 | |
483 | && (*sym_hash)->root.type != bfd_link_hash_defined)) | |
484 | { | |
485 | (*sym_hash)->class = sym.n_sclass; | |
486 | (*sym_hash)->type = sym.n_type; | |
487 | (*sym_hash)->numaux = sym.n_numaux; | |
488 | (*sym_hash)->auxbfd = abfd; | |
489 | if (sym.n_numaux != 0) | |
490 | { | |
491 | union internal_auxent *alloc; | |
492 | unsigned int i; | |
493 | bfd_byte *eaux; | |
494 | union internal_auxent *iaux; | |
495 | ||
d25079a0 SC |
496 | alloc = ((union internal_auxent *) |
497 | bfd_hash_allocate (&info->hash->table, | |
498 | (sym.n_numaux | |
499 | * sizeof (*alloc)))); | |
69645d10 ILT |
500 | if (alloc == NULL) |
501 | { | |
502 | bfd_set_error (bfd_error_no_memory); | |
503 | return false; | |
504 | } | |
505 | for (i = 0, eaux = esym + symesz, iaux = alloc; | |
506 | i < sym.n_numaux; | |
507 | i++, eaux += symesz, iaux++) | |
508 | bfd_coff_swap_aux_in (abfd, (PTR) eaux, sym.n_type, | |
509 | sym.n_sclass, i, sym.n_numaux, | |
510 | (PTR) iaux); | |
511 | (*sym_hash)->aux = alloc; | |
512 | } | |
513 | } | |
514 | } | |
515 | } | |
516 | ||
517 | esym += (sym.n_numaux + 1) * symesz; | |
518 | sym_hash += sym.n_numaux + 1; | |
519 | } | |
520 | ||
521 | return true; | |
522 | } | |
523 | ||
d25079a0 SC |
524 | /* parse out a -heap <reserved>,<commit> line */ |
525 | ||
526 | static char * | |
527 | dores_com (ptr, def,res, com) | |
528 | char *ptr; | |
529 | int *def; | |
530 | int *res; | |
531 | int *com; | |
532 | { | |
533 | *def = 1; | |
534 | *res = strtoul (ptr, &ptr, 0); | |
535 | if (ptr[0] == ',') | |
536 | *com = strtoul (ptr+1, &ptr, 0); | |
537 | return ptr; | |
538 | } | |
539 | ||
540 | static char *get_name(ptr, dst) | |
541 | char *ptr; | |
542 | char **dst; | |
543 | { | |
544 | while (*ptr == ' ') | |
545 | ptr++; | |
546 | *dst = ptr; | |
547 | while (*ptr && *ptr != ' ') | |
548 | ptr++; | |
549 | *ptr = 0; | |
550 | return ptr+1; | |
551 | } | |
552 | /* Process any magic embedded commands in a section called .drectve */ | |
553 | ||
554 | static int | |
555 | process_embedded_commands (abfd) | |
556 | bfd *abfd; | |
557 | { | |
558 | asection *sec = bfd_get_section_by_name (abfd, ".drectve"); | |
559 | char *s; | |
560 | char *e; | |
561 | char *copy; | |
89665c85 | 562 | if (!sec) |
d25079a0 | 563 | return 1; |
89665c85 | 564 | |
ff31ebda | 565 | copy = malloc ((size_t) sec->_raw_size); |
d25079a0 SC |
566 | if (!copy) |
567 | { | |
568 | bfd_set_error (bfd_error_no_memory); | |
569 | return 0; | |
570 | } | |
571 | if (! bfd_get_section_contents(abfd, sec, copy, 0, sec->_raw_size)) | |
572 | { | |
573 | free (copy); | |
574 | return 0; | |
575 | } | |
576 | e = copy + sec->_raw_size; | |
577 | for (s = copy; s < e ; ) | |
578 | { | |
579 | if (s[0]!= '-') { | |
580 | s++; | |
581 | continue; | |
582 | } | |
583 | if (strncmp (s,"-attr", 5) == 0) | |
584 | { | |
585 | char *name; | |
586 | char *attribs; | |
587 | asection *asec; | |
588 | ||
589 | int loop = 1; | |
590 | int had_write = 0; | |
591 | int had_read = 0; | |
592 | int had_exec= 0; | |
593 | int had_shared= 0; | |
594 | s += 5; | |
595 | s = get_name(s, &name); | |
596 | s = get_name(s, &attribs); | |
597 | while (loop) { | |
598 | switch (*attribs++) | |
599 | { | |
600 | case 'W': | |
601 | had_write = 1; | |
602 | break; | |
603 | case 'R': | |
604 | had_read = 1; | |
605 | break; | |
606 | case 'S': | |
607 | had_shared = 1; | |
608 | break; | |
609 | case 'X': | |
610 | had_exec = 1; | |
611 | break; | |
612 | default: | |
613 | loop = 0; | |
614 | } | |
615 | } | |
616 | asec = bfd_get_section_by_name (abfd, name); | |
617 | if (asec) { | |
618 | if (had_exec) | |
619 | asec->flags |= SEC_CODE; | |
620 | if (!had_write) | |
621 | asec->flags |= SEC_READONLY; | |
622 | } | |
623 | } | |
624 | else if (strncmp (s,"-heap", 5) == 0) | |
625 | { | |
626 | s = dores_com (s+5, | |
627 | &NT_stack_heap.heap_defined, | |
628 | &NT_stack_heap.heap_reserve, | |
629 | &NT_stack_heap.heap_commit); | |
630 | } | |
631 | else if (strncmp (s,"-stack", 6) == 0) | |
632 | { | |
633 | s = dores_com (s+6, | |
634 | &NT_stack_heap.heap_defined, | |
635 | &NT_stack_heap.heap_reserve, | |
636 | &NT_stack_heap.heap_commit); | |
637 | } | |
638 | else | |
639 | s++; | |
640 | } | |
641 | free (copy); | |
642 | return 1; | |
643 | } | |
69645d10 ILT |
644 | /* Do the final link step. */ |
645 | ||
646 | boolean | |
647 | _bfd_coff_final_link (abfd, info) | |
648 | bfd *abfd; | |
649 | struct bfd_link_info *info; | |
650 | { | |
651 | bfd_size_type symesz; | |
652 | struct coff_final_link_info finfo; | |
653 | asection *o; | |
654 | struct bfd_link_order *p; | |
655 | size_t max_contents_size; | |
656 | size_t max_sym_count; | |
657 | size_t max_lineno_count; | |
658 | size_t max_reloc_count; | |
659 | size_t max_output_reloc_count; | |
660 | file_ptr rel_filepos; | |
661 | unsigned int relsz; | |
662 | file_ptr line_filepos; | |
663 | unsigned int linesz; | |
664 | bfd *sub; | |
665 | bfd_byte *external_relocs = NULL; | |
666 | char strbuf[STRING_SIZE_SIZE]; | |
667 | ||
668 | symesz = bfd_coff_symesz (abfd); | |
669 | ||
670 | finfo.info = info; | |
671 | finfo.output_bfd = abfd; | |
672 | finfo.strtab = NULL; | |
673 | finfo.section_info = NULL; | |
674 | finfo.last_file_index = -1; | |
675 | finfo.internal_syms = NULL; | |
676 | finfo.sec_ptrs = NULL; | |
677 | finfo.sym_indices = NULL; | |
678 | finfo.outsyms = NULL; | |
679 | finfo.linenos = NULL; | |
680 | finfo.contents = NULL; | |
681 | finfo.external_relocs = NULL; | |
682 | finfo.internal_relocs = NULL; | |
683 | ||
d25079a0 SC |
684 | if (obj_pe(abfd)) |
685 | { | |
686 | /* store the subsystem, stack and heap parameters in variables defined | |
687 | in internal.h so that when they are needed to write the NT optional | |
688 | file header (coffcode.h), they will be available */ | |
689 | NT_subsystem = info->subsystem; | |
690 | NT_stack_heap = info->stack_heap_parameters; | |
691 | } | |
692 | ||
69645d10 ILT |
693 | finfo.strtab = _bfd_stringtab_init (); |
694 | if (finfo.strtab == NULL) | |
695 | goto error_return; | |
696 | ||
697 | /* Compute the file positions for all the sections. */ | |
698 | if (! abfd->output_has_begun) | |
699 | bfd_coff_compute_section_file_positions (abfd); | |
700 | ||
701 | /* Count the line numbers and relocation entries required for the | |
702 | output file. Set the file positions for the relocs. */ | |
703 | rel_filepos = obj_relocbase (abfd); | |
704 | relsz = bfd_coff_relsz (abfd); | |
705 | max_contents_size = 0; | |
706 | max_lineno_count = 0; | |
707 | max_reloc_count = 0; | |
708 | for (o = abfd->sections; o != NULL; o = o->next) | |
709 | { | |
710 | o->reloc_count = 0; | |
711 | o->lineno_count = 0; | |
712 | for (p = o->link_order_head; p != NULL; p = p->next) | |
713 | { | |
714 | if (p->type == bfd_indirect_link_order) | |
715 | { | |
716 | asection *sec; | |
717 | ||
718 | sec = p->u.indirect.section; | |
719 | ||
720 | if (info->strip == strip_none | |
721 | || info->strip == strip_some) | |
722 | o->lineno_count += sec->lineno_count; | |
723 | ||
724 | if (info->relocateable) | |
725 | o->reloc_count += sec->reloc_count; | |
726 | ||
727 | if (sec->_raw_size > max_contents_size) | |
728 | max_contents_size = sec->_raw_size; | |
729 | if (sec->lineno_count > max_lineno_count) | |
730 | max_lineno_count = sec->lineno_count; | |
731 | if (sec->reloc_count > max_reloc_count) | |
732 | max_reloc_count = sec->reloc_count; | |
733 | } | |
734 | else if (info->relocateable | |
735 | && (p->type == bfd_section_reloc_link_order | |
736 | || p->type == bfd_symbol_reloc_link_order)) | |
737 | ++o->reloc_count; | |
738 | } | |
739 | if (o->reloc_count == 0) | |
740 | o->rel_filepos = 0; | |
741 | else | |
742 | { | |
743 | o->flags |= SEC_RELOC; | |
744 | o->rel_filepos = rel_filepos; | |
745 | rel_filepos += o->reloc_count * relsz; | |
746 | } | |
747 | } | |
748 | ||
749 | /* If doing a relocateable link, allocate space for the pointers we | |
750 | need to keep. */ | |
751 | if (info->relocateable) | |
752 | { | |
753 | unsigned int i; | |
754 | ||
2a895595 ILT |
755 | /* We use section_count + 1, rather than section_count, because |
756 | the target_index fields are 1 based. */ | |
69645d10 | 757 | finfo.section_info = ((struct coff_link_section_info *) |
2a895595 | 758 | malloc ((abfd->section_count + 1) |
69645d10 ILT |
759 | * sizeof (struct coff_link_section_info))); |
760 | if (finfo.section_info == NULL) | |
761 | { | |
762 | bfd_set_error (bfd_error_no_memory); | |
763 | goto error_return; | |
764 | } | |
2a895595 | 765 | for (i = 0; i <= abfd->section_count; i++) |
69645d10 ILT |
766 | { |
767 | finfo.section_info[i].relocs = NULL; | |
768 | finfo.section_info[i].rel_hashes = NULL; | |
769 | } | |
770 | } | |
771 | ||
772 | /* We now know the size of the relocs, so we can determine the file | |
773 | positions of the line numbers. */ | |
774 | line_filepos = rel_filepos; | |
775 | linesz = bfd_coff_linesz (abfd); | |
776 | max_output_reloc_count = 0; | |
777 | for (o = abfd->sections; o != NULL; o = o->next) | |
778 | { | |
779 | if (o->lineno_count == 0) | |
780 | o->line_filepos = 0; | |
781 | else | |
782 | { | |
783 | o->line_filepos = line_filepos; | |
784 | line_filepos += o->lineno_count * linesz; | |
785 | } | |
786 | ||
787 | if (o->reloc_count != 0) | |
788 | { | |
789 | /* We don't know the indices of global symbols until we have | |
790 | written out all the local symbols. For each section in | |
791 | the output file, we keep an array of pointers to hash | |
792 | table entries. Each entry in the array corresponds to a | |
793 | reloc. When we find a reloc against a global symbol, we | |
794 | set the corresponding entry in this array so that we can | |
795 | fix up the symbol index after we have written out all the | |
796 | local symbols. | |
797 | ||
798 | Because of this problem, we also keep the relocs in | |
799 | memory until the end of the link. This wastes memory, | |
800 | but only when doing a relocateable link, which is not the | |
801 | common case. */ | |
802 | BFD_ASSERT (info->relocateable); | |
803 | finfo.section_info[o->target_index].relocs = | |
804 | ((struct internal_reloc *) | |
805 | malloc (o->reloc_count * sizeof (struct internal_reloc))); | |
806 | finfo.section_info[o->target_index].rel_hashes = | |
807 | ((struct coff_link_hash_entry **) | |
808 | malloc (o->reloc_count | |
809 | * sizeof (struct coff_link_hash_entry *))); | |
810 | if (finfo.section_info[o->target_index].relocs == NULL | |
811 | || finfo.section_info[o->target_index].rel_hashes == NULL) | |
812 | { | |
813 | bfd_set_error (bfd_error_no_memory); | |
814 | goto error_return; | |
815 | } | |
816 | ||
817 | if (o->reloc_count > max_output_reloc_count) | |
818 | max_output_reloc_count = o->reloc_count; | |
819 | } | |
820 | ||
821 | /* Reset the reloc and lineno counts, so that we can use them to | |
822 | count the number of entries we have output so far. */ | |
823 | o->reloc_count = 0; | |
824 | o->lineno_count = 0; | |
825 | } | |
826 | ||
827 | obj_sym_filepos (abfd) = line_filepos; | |
828 | ||
829 | /* Figure out the largest number of symbols in an input BFD. Take | |
830 | the opportunity to clear the output_has_begun fields of all the | |
831 | input BFD's. */ | |
832 | max_sym_count = 0; | |
833 | for (sub = info->input_bfds; sub != NULL; sub = sub->link_next) | |
834 | { | |
835 | size_t sz; | |
836 | ||
837 | sub->output_has_begun = false; | |
838 | sz = obj_raw_syment_count (sub); | |
839 | if (sz > max_sym_count) | |
840 | max_sym_count = sz; | |
841 | } | |
842 | ||
843 | /* Allocate some buffers used while linking. */ | |
844 | finfo.internal_syms = ((struct internal_syment *) | |
845 | malloc (max_sym_count | |
846 | * sizeof (struct internal_syment))); | |
847 | finfo.sec_ptrs = (asection **) malloc (max_sym_count * sizeof (asection *)); | |
848 | finfo.sym_indices = (long *) malloc (max_sym_count * sizeof (long)); | |
ff31ebda KR |
849 | finfo.outsyms = ((bfd_byte *) |
850 | malloc ((size_t) ((max_sym_count + 1) * symesz))); | |
69645d10 ILT |
851 | finfo.linenos = (bfd_byte *) malloc (max_lineno_count |
852 | * bfd_coff_linesz (abfd)); | |
853 | finfo.contents = (bfd_byte *) malloc (max_contents_size); | |
854 | finfo.external_relocs = (bfd_byte *) malloc (max_reloc_count * relsz); | |
855 | if (! info->relocateable) | |
856 | finfo.internal_relocs = ((struct internal_reloc *) | |
857 | malloc (max_reloc_count | |
858 | * sizeof (struct internal_reloc))); | |
859 | if ((finfo.internal_syms == NULL && max_sym_count > 0) | |
860 | || (finfo.sec_ptrs == NULL && max_sym_count > 0) | |
861 | || (finfo.sym_indices == NULL && max_sym_count > 0) | |
862 | || finfo.outsyms == NULL | |
863 | || (finfo.linenos == NULL && max_lineno_count > 0) | |
864 | || (finfo.contents == NULL && max_contents_size > 0) | |
865 | || (finfo.external_relocs == NULL && max_reloc_count > 0) | |
866 | || (! info->relocateable | |
867 | && finfo.internal_relocs == NULL | |
868 | && max_reloc_count > 0)) | |
869 | { | |
870 | bfd_set_error (bfd_error_no_memory); | |
871 | goto error_return; | |
872 | } | |
873 | ||
874 | /* We now know the position of everything in the file, except that | |
875 | we don't know the size of the symbol table and therefore we don't | |
876 | know where the string table starts. We just build the string | |
877 | table in memory as we go along. We process all the relocations | |
878 | for a single input file at once. */ | |
879 | obj_raw_syment_count (abfd) = 0; | |
880 | for (o = abfd->sections; o != NULL; o = o->next) | |
881 | { | |
882 | for (p = o->link_order_head; p != NULL; p = p->next) | |
883 | { | |
884 | if (p->type == bfd_indirect_link_order | |
885 | && (bfd_get_flavour (p->u.indirect.section->owner) | |
886 | == bfd_target_coff_flavour)) | |
887 | { | |
888 | sub = p->u.indirect.section->owner; | |
889 | if (! sub->output_has_begun) | |
890 | { | |
891 | if (! coff_link_input_bfd (&finfo, sub)) | |
892 | goto error_return; | |
893 | sub->output_has_begun = true; | |
894 | } | |
895 | } | |
896 | else if (p->type == bfd_section_reloc_link_order | |
897 | || p->type == bfd_symbol_reloc_link_order) | |
898 | { | |
899 | if (! coff_reloc_link_order (abfd, &finfo, o, p)) | |
900 | goto error_return; | |
901 | } | |
902 | else | |
903 | { | |
904 | if (! _bfd_default_link_order (abfd, info, o, p)) | |
905 | goto error_return; | |
906 | } | |
907 | } | |
908 | } | |
909 | ||
910 | /* Free up the buffers used by coff_link_input_bfd. */ | |
911 | if (finfo.internal_syms != NULL) | |
912 | { | |
913 | free (finfo.internal_syms); | |
914 | finfo.internal_syms = NULL; | |
915 | } | |
916 | if (finfo.sec_ptrs != NULL) | |
917 | { | |
918 | free (finfo.sec_ptrs); | |
919 | finfo.sec_ptrs = NULL; | |
920 | } | |
921 | if (finfo.sym_indices != NULL) | |
922 | { | |
923 | free (finfo.sym_indices); | |
924 | finfo.sym_indices = NULL; | |
925 | } | |
926 | if (finfo.linenos != NULL) | |
927 | { | |
928 | free (finfo.linenos); | |
929 | finfo.linenos = NULL; | |
930 | } | |
931 | if (finfo.contents != NULL) | |
932 | { | |
933 | free (finfo.contents); | |
934 | finfo.contents = NULL; | |
935 | } | |
936 | if (finfo.external_relocs != NULL) | |
937 | { | |
938 | free (finfo.external_relocs); | |
939 | finfo.external_relocs = NULL; | |
940 | } | |
941 | if (finfo.internal_relocs != NULL) | |
942 | { | |
943 | free (finfo.internal_relocs); | |
944 | finfo.internal_relocs = NULL; | |
945 | } | |
946 | ||
947 | /* The value of the last C_FILE symbol is supposed to be the symbol | |
948 | index of the first external symbol. Write it out again if | |
949 | necessary. */ | |
950 | if (finfo.last_file_index != -1 | |
951 | && finfo.last_file.n_value != obj_raw_syment_count (abfd)) | |
952 | { | |
953 | finfo.last_file.n_value = obj_raw_syment_count (abfd); | |
954 | bfd_coff_swap_sym_out (abfd, (PTR) &finfo.last_file, | |
955 | (PTR) finfo.outsyms); | |
956 | if (bfd_seek (abfd, | |
957 | (obj_sym_filepos (abfd) | |
958 | + finfo.last_file_index * symesz), | |
959 | SEEK_SET) != 0 | |
960 | || bfd_write (finfo.outsyms, symesz, 1, abfd) != symesz) | |
961 | return false; | |
962 | } | |
963 | ||
964 | /* Write out the global symbols. */ | |
965 | finfo.failed = false; | |
966 | coff_link_hash_traverse (coff_hash_table (info), coff_write_global_sym, | |
967 | (PTR) &finfo); | |
968 | if (finfo.failed) | |
969 | goto error_return; | |
970 | ||
971 | /* The outsyms buffer is used by coff_write_global_sym. */ | |
972 | if (finfo.outsyms != NULL) | |
973 | { | |
974 | free (finfo.outsyms); | |
975 | finfo.outsyms = NULL; | |
976 | } | |
977 | ||
978 | if (info->relocateable) | |
979 | { | |
980 | /* Now that we have written out all the global symbols, we know | |
981 | the symbol indices to use for relocs against them, and we can | |
982 | finally write out the relocs. */ | |
983 | external_relocs = (bfd_byte *) malloc (max_output_reloc_count * relsz); | |
984 | if (external_relocs == NULL) | |
985 | { | |
986 | bfd_set_error (bfd_error_no_memory); | |
987 | goto error_return; | |
988 | } | |
989 | ||
990 | for (o = abfd->sections; o != NULL; o = o->next) | |
991 | { | |
992 | struct internal_reloc *irel; | |
993 | struct internal_reloc *irelend; | |
994 | struct coff_link_hash_entry **rel_hash; | |
995 | bfd_byte *erel; | |
996 | ||
997 | if (o->reloc_count == 0) | |
998 | continue; | |
999 | ||
1000 | irel = finfo.section_info[o->target_index].relocs; | |
1001 | irelend = irel + o->reloc_count; | |
1002 | rel_hash = finfo.section_info[o->target_index].rel_hashes; | |
1003 | erel = external_relocs; | |
1004 | for (; irel < irelend; irel++, rel_hash++, erel += relsz) | |
1005 | { | |
1006 | if (*rel_hash != NULL) | |
1007 | { | |
1008 | BFD_ASSERT ((*rel_hash)->indx >= 0); | |
1009 | irel->r_symndx = (*rel_hash)->indx; | |
1010 | } | |
1011 | bfd_coff_swap_reloc_out (abfd, (PTR) irel, (PTR) erel); | |
1012 | } | |
1013 | ||
1014 | if (bfd_seek (abfd, o->rel_filepos, SEEK_SET) != 0 | |
1015 | || bfd_write ((PTR) external_relocs, relsz, o->reloc_count, | |
1016 | abfd) != relsz * o->reloc_count) | |
1017 | goto error_return; | |
1018 | } | |
1019 | ||
1020 | free (external_relocs); | |
1021 | external_relocs = NULL; | |
1022 | } | |
1023 | ||
1024 | /* Free up the section information. */ | |
1025 | if (finfo.section_info != NULL) | |
1026 | { | |
1027 | unsigned int i; | |
1028 | ||
1029 | for (i = 0; i < abfd->section_count; i++) | |
1030 | { | |
1031 | if (finfo.section_info[i].relocs != NULL) | |
1032 | free (finfo.section_info[i].relocs); | |
1033 | if (finfo.section_info[i].rel_hashes != NULL) | |
1034 | free (finfo.section_info[i].rel_hashes); | |
1035 | } | |
1036 | free (finfo.section_info); | |
1037 | finfo.section_info = NULL; | |
1038 | } | |
1039 | ||
1040 | /* Write out the string table. */ | |
1041 | if (bfd_seek (abfd, | |
1042 | (obj_sym_filepos (abfd) | |
1043 | + obj_raw_syment_count (abfd) * symesz), | |
1044 | SEEK_SET) != 0) | |
1045 | return false; | |
1046 | ||
1047 | #if STRING_SIZE_SIZE == 4 | |
1048 | bfd_h_put_32 (abfd, | |
1049 | _bfd_stringtab_size (finfo.strtab) + STRING_SIZE_SIZE, | |
d25079a0 | 1050 | (bfd_byte *) strbuf); |
69645d10 ILT |
1051 | #else |
1052 | #error Change bfd_h_put_32 | |
1053 | #endif | |
1054 | ||
1055 | if (bfd_write (strbuf, 1, STRING_SIZE_SIZE, abfd) != STRING_SIZE_SIZE) | |
1056 | return false; | |
1057 | ||
1058 | if (! _bfd_stringtab_emit (abfd, finfo.strtab)) | |
1059 | return false; | |
1060 | ||
1061 | _bfd_stringtab_free (finfo.strtab); | |
1062 | ||
1063 | /* Setting bfd_get_symcount to 0 will cause write_object_contents to | |
1064 | not try to write out the symbols. */ | |
1065 | bfd_get_symcount (abfd) = 0; | |
1066 | ||
1067 | return true; | |
1068 | ||
1069 | error_return: | |
1070 | if (finfo.strtab != NULL) | |
1071 | _bfd_stringtab_free (finfo.strtab); | |
1072 | if (finfo.section_info != NULL) | |
1073 | { | |
1074 | unsigned int i; | |
1075 | ||
1076 | for (i = 0; i < abfd->section_count; i++) | |
1077 | { | |
1078 | if (finfo.section_info[i].relocs != NULL) | |
1079 | free (finfo.section_info[i].relocs); | |
1080 | if (finfo.section_info[i].rel_hashes != NULL) | |
1081 | free (finfo.section_info[i].rel_hashes); | |
1082 | } | |
1083 | free (finfo.section_info); | |
1084 | } | |
1085 | if (finfo.internal_syms != NULL) | |
1086 | free (finfo.internal_syms); | |
1087 | if (finfo.sec_ptrs != NULL) | |
1088 | free (finfo.sec_ptrs); | |
1089 | if (finfo.sym_indices != NULL) | |
1090 | free (finfo.sym_indices); | |
1091 | if (finfo.outsyms != NULL) | |
1092 | free (finfo.outsyms); | |
1093 | if (finfo.linenos != NULL) | |
1094 | free (finfo.linenos); | |
1095 | if (finfo.contents != NULL) | |
1096 | free (finfo.contents); | |
1097 | if (finfo.external_relocs != NULL) | |
1098 | free (finfo.external_relocs); | |
1099 | if (finfo.internal_relocs != NULL) | |
1100 | free (finfo.internal_relocs); | |
1101 | if (external_relocs != NULL) | |
1102 | free (external_relocs); | |
1103 | return false; | |
1104 | } | |
1105 | ||
ff31ebda KR |
1106 | /* Read in and swap the relocs. This returns a buffer holding the |
1107 | relocs for section SEC in file ABFD. If CACHE is true and | |
1108 | INTERNAL_RELOCS is NULL, the relocs read in wil be saved in case | |
1109 | the function is called again. If EXTERNAL_RELOCS is not NULL, it | |
1110 | is a buffer large enough to hold the unswapped relocs. If | |
1111 | INTERNAL_RELOCS is not NULL, it is a buffer large enough to hold | |
1112 | the swapped relocs. If REQUIRE_INTERNAL is true, then the return | |
1113 | value must be INTERNAL_RELOCS. The function returns NULL on error. */ | |
1114 | ||
1115 | struct internal_reloc * | |
1116 | _bfd_coff_read_internal_relocs (abfd, sec, cache, external_relocs, | |
1117 | require_internal, internal_relocs) | |
1118 | bfd *abfd; | |
1119 | asection *sec; | |
1120 | boolean cache; | |
1121 | bfd_byte *external_relocs; | |
1122 | boolean require_internal; | |
1123 | struct internal_reloc *internal_relocs; | |
1124 | { | |
1125 | bfd_size_type relsz; | |
1126 | bfd_byte *free_external = NULL; | |
1127 | struct internal_reloc *free_internal = NULL; | |
1128 | bfd_byte *erel; | |
1129 | bfd_byte *erel_end; | |
1130 | struct internal_reloc *irel; | |
1131 | ||
1132 | if (coff_section_data (abfd, sec) != NULL | |
1133 | && coff_section_data (abfd, sec)->relocs != NULL) | |
1134 | { | |
1135 | if (! require_internal) | |
1136 | return coff_section_data (abfd, sec)->relocs; | |
1137 | memcpy (internal_relocs, coff_section_data (abfd, sec)->relocs, | |
1138 | sec->reloc_count * sizeof (struct internal_reloc)); | |
1139 | return internal_relocs; | |
1140 | } | |
1141 | ||
1142 | relsz = bfd_coff_relsz (abfd); | |
1143 | ||
1144 | if (external_relocs == NULL) | |
1145 | { | |
1146 | free_external = (bfd_byte *) malloc (sec->reloc_count * relsz); | |
1147 | if (free_external == NULL && sec->reloc_count > 0) | |
1148 | { | |
1149 | bfd_set_error (bfd_error_no_memory); | |
1150 | goto error_return; | |
1151 | } | |
1152 | external_relocs = free_external; | |
1153 | } | |
1154 | ||
1155 | if (bfd_seek (abfd, sec->rel_filepos, SEEK_SET) != 0 | |
1156 | || (bfd_read (external_relocs, relsz, sec->reloc_count, abfd) | |
1157 | != relsz * sec->reloc_count)) | |
1158 | goto error_return; | |
1159 | ||
1160 | if (internal_relocs == NULL) | |
1161 | { | |
1162 | free_internal = ((struct internal_reloc *) | |
1163 | malloc (sec->reloc_count | |
1164 | * sizeof (struct internal_reloc))); | |
1165 | if (free_internal == NULL && sec->reloc_count > 0) | |
1166 | { | |
1167 | bfd_set_error (bfd_error_no_memory); | |
1168 | goto error_return; | |
1169 | } | |
1170 | internal_relocs = free_internal; | |
1171 | } | |
1172 | ||
1173 | /* Swap in the relocs. */ | |
1174 | erel = external_relocs; | |
1175 | erel_end = erel + relsz * sec->reloc_count; | |
1176 | irel = internal_relocs; | |
1177 | for (; erel < erel_end; erel += relsz, irel++) | |
1178 | bfd_coff_swap_reloc_in (abfd, (PTR) erel, (PTR) irel); | |
1179 | ||
1180 | if (free_external != NULL) | |
1181 | { | |
1182 | free (free_external); | |
1183 | free_external = NULL; | |
1184 | } | |
1185 | ||
1186 | if (cache && free_internal != NULL) | |
1187 | { | |
1188 | if (coff_section_data (abfd, sec) == NULL) | |
1189 | { | |
1190 | sec->used_by_bfd = ((PTR) bfd_zalloc (abfd, | |
1191 | sizeof (struct coff_section_tdata))); | |
1192 | if (sec->used_by_bfd == NULL) | |
1193 | { | |
1194 | bfd_set_error (bfd_error_no_memory); | |
1195 | goto error_return; | |
1196 | } | |
1197 | coff_section_data (abfd, sec)->contents = NULL; | |
1198 | } | |
1199 | coff_section_data (abfd, sec)->relocs = free_internal; | |
1200 | } | |
1201 | ||
1202 | return internal_relocs; | |
1203 | ||
1204 | error_return: | |
1205 | if (free_external != NULL) | |
1206 | free (free_external); | |
1207 | if (free_internal != NULL) | |
1208 | free (free_internal); | |
1209 | return NULL; | |
1210 | } | |
1211 | ||
69645d10 ILT |
1212 | /* Link an input file into the linker output file. This function |
1213 | handles all the sections and relocations of the input file at once. */ | |
1214 | ||
1215 | static boolean | |
1216 | coff_link_input_bfd (finfo, input_bfd) | |
1217 | struct coff_final_link_info *finfo; | |
1218 | bfd *input_bfd; | |
1219 | { | |
1220 | boolean (*sym_is_global) PARAMS ((bfd *, struct internal_syment *)); | |
d25079a0 SC |
1221 | boolean (*adjust_symndx) PARAMS ((bfd *, struct bfd_link_info *, bfd *, |
1222 | asection *, struct internal_reloc *, | |
1223 | boolean *)); | |
69645d10 ILT |
1224 | bfd *output_bfd; |
1225 | const char *strings; | |
1226 | bfd_size_type syment_base; | |
1227 | unsigned int n_tmask; | |
1228 | unsigned int n_btshft; | |
1229 | boolean copy, hash; | |
1230 | bfd_size_type isymesz; | |
1231 | bfd_size_type osymesz; | |
1232 | bfd_size_type linesz; | |
1233 | bfd_byte *esym; | |
1234 | bfd_byte *esym_end; | |
1235 | struct internal_syment *isymp; | |
1236 | asection **secpp; | |
1237 | long *indexp; | |
1238 | long output_index; | |
1239 | bfd_byte *outsym; | |
1240 | struct coff_link_hash_entry **sym_hash; | |
69645d10 ILT |
1241 | asection *o; |
1242 | ||
1243 | /* Move all the symbols to the output file. */ | |
1244 | ||
1245 | output_bfd = finfo->output_bfd; | |
1246 | sym_is_global = coff_backend_info (input_bfd)->_bfd_coff_sym_is_global; | |
1247 | strings = NULL; | |
1248 | syment_base = obj_raw_syment_count (output_bfd); | |
1249 | isymesz = bfd_coff_symesz (input_bfd); | |
1250 | osymesz = bfd_coff_symesz (output_bfd); | |
1251 | linesz = bfd_coff_linesz (input_bfd); | |
1252 | BFD_ASSERT (linesz == bfd_coff_linesz (output_bfd)); | |
1253 | ||
1254 | n_tmask = coff_data (input_bfd)->local_n_tmask; | |
1255 | n_btshft = coff_data (input_bfd)->local_n_btshft; | |
1256 | ||
1257 | /* Define macros so that ISFCN, et. al., macros work correctly. */ | |
1258 | #define N_TMASK n_tmask | |
1259 | #define N_BTSHFT n_btshft | |
1260 | ||
1261 | copy = false; | |
1262 | if (! finfo->info->keep_memory) | |
1263 | copy = true; | |
1264 | hash = true; | |
1265 | if ((output_bfd->flags & BFD_TRADITIONAL_FORMAT) != 0) | |
1266 | hash = false; | |
1267 | ||
ff31ebda | 1268 | if (! _bfd_coff_get_external_symbols (input_bfd)) |
69645d10 ILT |
1269 | return false; |
1270 | ||
1271 | esym = (bfd_byte *) obj_coff_external_syms (input_bfd); | |
1272 | esym_end = esym + obj_raw_syment_count (input_bfd) * isymesz; | |
1273 | isymp = finfo->internal_syms; | |
1274 | secpp = finfo->sec_ptrs; | |
1275 | indexp = finfo->sym_indices; | |
1276 | output_index = syment_base; | |
1277 | outsym = finfo->outsyms; | |
d25079a0 SC |
1278 | |
1279 | if (obj_pe (output_bfd)) | |
1280 | { | |
1281 | if (!process_embedded_commands (input_bfd)) | |
1282 | return false; | |
1283 | } | |
1284 | ||
69645d10 ILT |
1285 | while (esym < esym_end) |
1286 | { | |
1287 | struct internal_syment isym; | |
1288 | boolean skip; | |
1289 | boolean global; | |
1290 | int add; | |
1291 | ||
1292 | bfd_coff_swap_sym_in (input_bfd, (PTR) esym, (PTR) isymp); | |
1293 | ||
1294 | /* Make a copy of *isymp so that the relocate_section function | |
1295 | always sees the original values. This is more reliable than | |
1296 | always recomputing the symbol value even if we are stripping | |
1297 | the symbol. */ | |
1298 | isym = *isymp; | |
1299 | ||
2a895595 ILT |
1300 | if (isym.n_scnum != 0) |
1301 | *secpp = coff_section_from_bfd_index (input_bfd, isym.n_scnum); | |
1302 | else | |
1303 | { | |
1304 | if (isym.n_value == 0) | |
1305 | *secpp = bfd_und_section_ptr; | |
1306 | else | |
1307 | *secpp = bfd_com_section_ptr; | |
1308 | } | |
1309 | ||
69645d10 ILT |
1310 | *indexp = -1; |
1311 | ||
1312 | skip = false; | |
1313 | global = false; | |
1314 | add = 1 + isym.n_numaux; | |
1315 | ||
1316 | /* If we are stripping all symbols, we want to skip this one. */ | |
1317 | if (finfo->info->strip == strip_all) | |
1318 | skip = true; | |
1319 | ||
1320 | if (! skip) | |
1321 | { | |
1322 | if (isym.n_sclass == C_EXT | |
1323 | || (sym_is_global && (*sym_is_global) (input_bfd, &isym))) | |
1324 | { | |
1325 | /* This is a global symbol. Global symbols come at the | |
1326 | end of the symbol table, so skip them for now. | |
1327 | Function symbols, however, are an exception, and are | |
1328 | not moved to the end. */ | |
1329 | global = true; | |
1330 | if (! ISFCN (isym.n_type)) | |
1331 | skip = true; | |
1332 | } | |
1333 | else | |
1334 | { | |
1335 | /* This is a local symbol. Skip it if we are discarding | |
1336 | local symbols. */ | |
1337 | if (finfo->info->discard == discard_all) | |
1338 | skip = true; | |
1339 | } | |
1340 | } | |
1341 | ||
1342 | /* If we stripping debugging symbols, and this is a debugging | |
1343 | symbol, then skip it. */ | |
1344 | if (! skip | |
1345 | && finfo->info->strip == strip_debugger | |
1346 | && isym.n_scnum == N_DEBUG) | |
1347 | skip = true; | |
1348 | ||
1349 | /* If some symbols are stripped based on the name, work out the | |
1350 | name and decide whether to skip this symbol. */ | |
1351 | if (! skip | |
1352 | && (finfo->info->strip == strip_some | |
1353 | || finfo->info->discard == discard_l)) | |
1354 | { | |
1355 | const char *name; | |
1356 | char buf[SYMNMLEN + 1]; | |
1357 | ||
ff31ebda KR |
1358 | name = _bfd_coff_internal_syment_name (input_bfd, &isym, buf); |
1359 | if (name == NULL) | |
1360 | return false; | |
69645d10 ILT |
1361 | |
1362 | if ((finfo->info->strip == strip_some | |
1363 | && (bfd_hash_lookup (finfo->info->keep_hash, name, false, | |
1364 | false) == NULL)) | |
1365 | || (! global | |
1366 | && finfo->info->discard == discard_l | |
1367 | && strncmp (name, finfo->info->lprefix, | |
1368 | finfo->info->lprefix_len) == 0)) | |
1369 | skip = true; | |
1370 | } | |
1371 | ||
1372 | /* We now know whether we are to skip this symbol or not. */ | |
1373 | if (! skip) | |
1374 | { | |
1375 | /* Adjust the symbol in order to output it. */ | |
1376 | ||
1377 | if (isym._n._n_n._n_zeroes == 0 | |
1378 | && isym._n._n_n._n_offset != 0) | |
1379 | { | |
1380 | const char *name; | |
1381 | bfd_size_type indx; | |
1382 | ||
1383 | /* This symbol has a long name. Enter it in the string | |
1384 | table we are building. Note that we do not check | |
1385 | bfd_coff_symname_in_debug. That is only true for | |
1386 | XCOFF, and XCOFF requires different linking code | |
1387 | anyhow. */ | |
ff31ebda KR |
1388 | name = _bfd_coff_internal_syment_name (input_bfd, &isym, |
1389 | (char *) NULL); | |
1390 | if (name == NULL) | |
1391 | return false; | |
69645d10 ILT |
1392 | indx = _bfd_stringtab_add (finfo->strtab, name, hash, copy); |
1393 | if (indx == (bfd_size_type) -1) | |
1394 | return false; | |
1395 | isym._n._n_n._n_offset = STRING_SIZE_SIZE + indx; | |
1396 | } | |
1397 | ||
1398 | if (isym.n_scnum > 0) | |
1399 | { | |
1400 | isym.n_scnum = (*secpp)->output_section->target_index; | |
1401 | isym.n_value += ((*secpp)->output_section->vma | |
1402 | + (*secpp)->output_offset | |
1403 | - (*secpp)->vma); | |
1404 | } | |
1405 | ||
1406 | /* The value of a C_FILE symbol is the symbol index of the | |
1407 | next C_FILE symbol. The value of the last C_FILE symbol | |
1408 | is the symbol index to the first external symbol | |
1409 | (actually, coff_renumber_symbols does not get this | |
1410 | right--it just sets the value of the last C_FILE symbol | |
1411 | to zero--and nobody has ever complained about it). We | |
1412 | try to get this right, below, just before we write the | |
1413 | symbols out, but in the general case we may have to write | |
1414 | the symbol out twice. */ | |
1415 | if (isym.n_sclass == C_FILE) | |
1416 | { | |
1417 | if (finfo->last_file_index != -1 | |
1418 | && finfo->last_file.n_value != output_index) | |
1419 | { | |
1420 | /* We must correct the value of the last C_FILE entry. */ | |
1421 | finfo->last_file.n_value = output_index; | |
1422 | if (finfo->last_file_index >= syment_base) | |
1423 | { | |
1424 | /* The last C_FILE symbol is in this input file. */ | |
1425 | bfd_coff_swap_sym_out (output_bfd, | |
1426 | (PTR) &finfo->last_file, | |
1427 | (PTR) (finfo->outsyms | |
1428 | + ((finfo->last_file_index | |
1429 | - syment_base) | |
1430 | * osymesz))); | |
1431 | } | |
1432 | else | |
1433 | { | |
1434 | /* We have already written out the last C_FILE | |
1435 | symbol. We need to write it out again. We | |
1436 | borrow *outsym temporarily. */ | |
1437 | bfd_coff_swap_sym_out (output_bfd, | |
1438 | (PTR) &finfo->last_file, | |
1439 | (PTR) outsym); | |
1440 | if (bfd_seek (output_bfd, | |
1441 | (obj_sym_filepos (output_bfd) | |
1442 | + finfo->last_file_index * osymesz), | |
1443 | SEEK_SET) != 0 | |
1444 | || (bfd_write (outsym, osymesz, 1, output_bfd) | |
1445 | != osymesz)) | |
1446 | return false; | |
1447 | } | |
1448 | } | |
1449 | ||
1450 | finfo->last_file_index = output_index; | |
1451 | finfo->last_file = isym; | |
1452 | } | |
1453 | ||
1454 | /* Output the symbol. */ | |
1455 | ||
1456 | bfd_coff_swap_sym_out (output_bfd, (PTR) &isym, (PTR) outsym); | |
1457 | ||
1458 | *indexp = output_index; | |
1459 | ||
1460 | if (global) | |
1461 | { | |
1462 | long indx; | |
1463 | struct coff_link_hash_entry *h; | |
1464 | ||
1465 | indx = ((esym - (bfd_byte *) obj_coff_external_syms (input_bfd)) | |
1466 | / isymesz); | |
1467 | h = obj_coff_sym_hashes (input_bfd)[indx]; | |
1468 | BFD_ASSERT (h != NULL); | |
1469 | h->indx = output_index; | |
1470 | } | |
1471 | ||
1472 | output_index += add; | |
1473 | outsym += add * osymesz; | |
1474 | } | |
1475 | ||
1476 | esym += add * isymesz; | |
1477 | isymp += add; | |
1478 | ++secpp; | |
1479 | ++indexp; | |
1480 | for (--add; add > 0; --add) | |
1481 | { | |
1482 | *secpp++ = NULL; | |
1483 | *indexp++ = -1; | |
1484 | } | |
1485 | } | |
1486 | ||
1487 | /* Fix up the aux entries. This must be done in a separate pass, | |
1488 | because we don't know the correct symbol indices until we have | |
1489 | already decided which symbols we are going to keep. */ | |
1490 | ||
1491 | esym = (bfd_byte *) obj_coff_external_syms (input_bfd); | |
1492 | esym_end = esym + obj_raw_syment_count (input_bfd) * isymesz; | |
1493 | isymp = finfo->internal_syms; | |
1494 | indexp = finfo->sym_indices; | |
1495 | sym_hash = obj_coff_sym_hashes (input_bfd); | |
1496 | outsym = finfo->outsyms; | |
1497 | while (esym < esym_end) | |
1498 | { | |
1499 | int add; | |
1500 | ||
1501 | add = 1 + isymp->n_numaux; | |
1502 | ||
1503 | if (*indexp < 0 | |
1504 | && (*sym_hash == NULL | |
1505 | || (*sym_hash)->auxbfd != input_bfd)) | |
1506 | esym += add * isymesz; | |
1507 | else | |
1508 | { | |
1509 | struct coff_link_hash_entry *h; | |
1510 | int i; | |
1511 | ||
1512 | h = NULL; | |
1513 | if (*indexp < 0) | |
1514 | { | |
1515 | h = *sym_hash; | |
1516 | BFD_ASSERT (h->numaux == isymp->n_numaux); | |
1517 | } | |
1518 | ||
1519 | esym += isymesz; | |
1520 | ||
1521 | if (h == NULL) | |
1522 | outsym += osymesz; | |
1523 | ||
1524 | /* Handle the aux entries. This handling is based on | |
1525 | coff_pointerize_aux. I don't know if it always correct. */ | |
1526 | for (i = 0; i < isymp->n_numaux && esym < esym_end; i++) | |
1527 | { | |
1528 | union internal_auxent aux; | |
1529 | union internal_auxent *auxp; | |
1530 | ||
1531 | if (h != NULL) | |
1532 | auxp = h->aux + i; | |
1533 | else | |
1534 | { | |
1535 | bfd_coff_swap_aux_in (input_bfd, (PTR) esym, isymp->n_type, | |
1536 | isymp->n_sclass, i, isymp->n_numaux, | |
1537 | (PTR) &aux); | |
1538 | auxp = &aux; | |
1539 | } | |
1540 | ||
1541 | if (isymp->n_sclass == C_FILE) | |
1542 | { | |
1543 | /* If this is a long filename, we must put it in the | |
1544 | string table. */ | |
d25079a0 SC |
1545 | if (auxp->x_file.x_n.x_zeroes == 0 |
1546 | && auxp->x_file.x_n.x_offset != 0) | |
69645d10 ILT |
1547 | { |
1548 | const char *filename; | |
1549 | bfd_size_type indx; | |
1550 | ||
1551 | BFD_ASSERT (auxp->x_file.x_n.x_offset | |
1552 | >= STRING_SIZE_SIZE); | |
1553 | if (strings == NULL) | |
1554 | { | |
ff31ebda | 1555 | strings = _bfd_coff_read_string_table (input_bfd); |
69645d10 ILT |
1556 | if (strings == NULL) |
1557 | return false; | |
1558 | } | |
1559 | filename = strings + auxp->x_file.x_n.x_offset; | |
1560 | indx = _bfd_stringtab_add (finfo->strtab, filename, | |
1561 | hash, copy); | |
1562 | if (indx == (bfd_size_type) -1) | |
1563 | return false; | |
1564 | auxp->x_file.x_n.x_offset = STRING_SIZE_SIZE + indx; | |
1565 | } | |
1566 | } | |
1567 | else if (isymp->n_sclass != C_STAT || isymp->n_type != T_NULL) | |
1568 | { | |
1569 | long indx; | |
1570 | ||
1571 | if (ISFCN (isymp->n_type) | |
1572 | || ISTAG (isymp->n_sclass) | |
1573 | || isymp->n_sclass == C_BLOCK) | |
1574 | { | |
1575 | indx = auxp->x_sym.x_fcnary.x_fcn.x_endndx.l; | |
1576 | if (indx > 0 | |
1577 | && indx < obj_raw_syment_count (input_bfd)) | |
1578 | { | |
1579 | /* We look forward through the symbol for | |
1580 | the index of the next symbol we are going | |
1581 | to include. I don't know if this is | |
1582 | entirely right. */ | |
1583 | while (finfo->sym_indices[indx] < 0 | |
1584 | && indx < obj_raw_syment_count (input_bfd)) | |
1585 | ++indx; | |
1586 | if (indx >= obj_raw_syment_count (input_bfd)) | |
1587 | indx = output_index; | |
1588 | else | |
1589 | indx = finfo->sym_indices[indx]; | |
1590 | auxp->x_sym.x_fcnary.x_fcn.x_endndx.l = indx; | |
1591 | } | |
1592 | } | |
1593 | ||
1594 | indx = auxp->x_sym.x_tagndx.l; | |
1595 | if (indx > 0 && indx < obj_raw_syment_count (input_bfd)) | |
1596 | { | |
1597 | indx = finfo->sym_indices[indx]; | |
1598 | if (indx < 0) | |
1599 | auxp->x_sym.x_tagndx.l = 0; | |
1600 | else | |
1601 | auxp->x_sym.x_tagndx.l = indx; | |
1602 | } | |
1603 | } | |
1604 | ||
1605 | if (h == NULL) | |
1606 | { | |
1607 | bfd_coff_swap_aux_out (output_bfd, (PTR) auxp, isymp->n_type, | |
1608 | isymp->n_sclass, i, isymp->n_numaux, | |
1609 | (PTR) outsym); | |
1610 | outsym += osymesz; | |
1611 | } | |
1612 | ||
1613 | esym += isymesz; | |
1614 | } | |
1615 | } | |
1616 | ||
1617 | indexp += add; | |
1618 | isymp += add; | |
1619 | sym_hash += add; | |
1620 | } | |
1621 | ||
1622 | /* Relocate the line numbers, unless we are stripping them. */ | |
1623 | if (finfo->info->strip == strip_none | |
1624 | || finfo->info->strip == strip_some) | |
1625 | { | |
1626 | for (o = input_bfd->sections; o != NULL; o = o->next) | |
1627 | { | |
1628 | bfd_vma offset; | |
1629 | bfd_byte *eline; | |
1630 | bfd_byte *elineend; | |
1631 | ||
1632 | if (o->lineno_count == 0) | |
1633 | continue; | |
1634 | ||
1635 | if (bfd_seek (input_bfd, o->line_filepos, SEEK_SET) != 0 | |
1636 | || bfd_read (finfo->linenos, linesz, o->lineno_count, | |
1637 | input_bfd) != linesz * o->lineno_count) | |
1638 | return false; | |
1639 | ||
1640 | offset = o->output_section->vma + o->output_offset - o->vma; | |
1641 | eline = finfo->linenos; | |
1642 | elineend = eline + linesz * o->lineno_count; | |
1643 | for (; eline < elineend; eline += linesz) | |
1644 | { | |
1645 | struct internal_lineno iline; | |
1646 | ||
1647 | bfd_coff_swap_lineno_in (input_bfd, (PTR) eline, (PTR) &iline); | |
1648 | ||
1649 | if (iline.l_lnno != 0) | |
1650 | iline.l_addr.l_paddr += offset; | |
1651 | else if (iline.l_addr.l_symndx >= 0 | |
1652 | && (iline.l_addr.l_symndx | |
1653 | < obj_raw_syment_count (input_bfd))) | |
1654 | { | |
1655 | long indx; | |
1656 | ||
1657 | indx = finfo->sym_indices[iline.l_addr.l_symndx]; | |
1658 | ||
1659 | if (indx < 0) | |
1660 | { | |
1661 | /* These line numbers are attached to a symbol | |
1662 | which we are stripping. We should really | |
1663 | just discard the line numbers, but that would | |
1664 | be a pain because we have already counted | |
1665 | them. */ | |
1666 | indx = 0; | |
1667 | } | |
1668 | else | |
1669 | { | |
1670 | struct internal_syment is; | |
1671 | union internal_auxent ia; | |
1672 | ||
1673 | /* Fix up the lnnoptr field in the aux entry of | |
1674 | the symbol. It turns out that we can't do | |
1675 | this when we modify the symbol aux entries, | |
1676 | because gas sometimes screws up the lnnoptr | |
1677 | field and makes it an offset from the start | |
1678 | of the line numbers rather than an absolute | |
1679 | file index. */ | |
1680 | bfd_coff_swap_sym_in (output_bfd, | |
1681 | (PTR) (finfo->outsyms | |
1682 | + ((indx - syment_base) | |
1683 | * osymesz)), | |
1684 | (PTR) &is); | |
1685 | if ((ISFCN (is.n_type) | |
1686 | || is.n_sclass == C_BLOCK) | |
1687 | && is.n_numaux >= 1) | |
1688 | { | |
1689 | PTR auxptr; | |
1690 | ||
1691 | auxptr = (PTR) (finfo->outsyms | |
1692 | + ((indx - syment_base + 1) | |
1693 | * osymesz)); | |
1694 | bfd_coff_swap_aux_in (output_bfd, auxptr, | |
1695 | is.n_type, is.n_sclass, | |
1696 | 0, is.n_numaux, (PTR) &ia); | |
1697 | ia.x_sym.x_fcnary.x_fcn.x_lnnoptr = | |
1698 | (o->output_section->line_filepos | |
1699 | + o->output_section->lineno_count * linesz | |
1700 | + eline - finfo->linenos); | |
1701 | bfd_coff_swap_aux_out (output_bfd, (PTR) &ia, | |
1702 | is.n_type, is.n_sclass, 0, | |
1703 | is.n_numaux, auxptr); | |
1704 | } | |
1705 | } | |
1706 | ||
1707 | iline.l_addr.l_symndx = indx; | |
1708 | } | |
1709 | ||
1710 | bfd_coff_swap_lineno_out (output_bfd, (PTR) &iline, (PTR) eline); | |
1711 | } | |
1712 | ||
1713 | if (bfd_seek (output_bfd, | |
1714 | (o->output_section->line_filepos | |
1715 | + o->output_section->lineno_count * linesz), | |
1716 | SEEK_SET) != 0 | |
1717 | || bfd_write (finfo->linenos, linesz, o->lineno_count, | |
1718 | output_bfd) != linesz * o->lineno_count) | |
1719 | return false; | |
1720 | ||
1721 | o->output_section->lineno_count += o->lineno_count; | |
1722 | } | |
1723 | } | |
1724 | ||
1725 | /* If we swapped out a C_FILE symbol, guess that the next C_FILE | |
1726 | symbol will be the first symbol in the next input file. In the | |
1727 | normal case, this will save us from writing out the C_FILE symbol | |
1728 | again. */ | |
d25079a0 SC |
1729 | if (finfo->last_file_index != -1 |
1730 | && finfo->last_file_index >= syment_base) | |
69645d10 ILT |
1731 | { |
1732 | finfo->last_file.n_value = output_index; | |
1733 | bfd_coff_swap_sym_out (output_bfd, (PTR) &finfo->last_file, | |
1734 | (PTR) (finfo->outsyms | |
d25079a0 SC |
1735 | + ((finfo->last_file_index - syment_base) |
1736 | * osymesz))); | |
69645d10 ILT |
1737 | } |
1738 | ||
1739 | /* Write the modified symbols to the output file. */ | |
1740 | if (outsym > finfo->outsyms) | |
1741 | { | |
1742 | if (bfd_seek (output_bfd, | |
1743 | obj_sym_filepos (output_bfd) + syment_base * osymesz, | |
1744 | SEEK_SET) != 0 | |
1745 | || bfd_write (finfo->outsyms, outsym - finfo->outsyms, 1, | |
1746 | output_bfd) != outsym - finfo->outsyms) | |
1747 | return false; | |
1748 | ||
1749 | BFD_ASSERT ((obj_raw_syment_count (output_bfd) | |
1750 | + (outsym - finfo->outsyms) / osymesz) | |
1751 | == output_index); | |
1752 | ||
1753 | obj_raw_syment_count (output_bfd) = output_index; | |
1754 | } | |
1755 | ||
1756 | /* Relocate the contents of each section. */ | |
d25079a0 | 1757 | adjust_symndx = coff_backend_info (input_bfd)->_bfd_coff_adjust_symndx; |
69645d10 ILT |
1758 | for (o = input_bfd->sections; o != NULL; o = o->next) |
1759 | { | |
ff31ebda KR |
1760 | bfd_byte *contents; |
1761 | ||
69645d10 ILT |
1762 | if ((o->flags & SEC_HAS_CONTENTS) == 0) |
1763 | continue; | |
1764 | ||
ff31ebda KR |
1765 | if (coff_section_data (input_bfd, o) != NULL |
1766 | && coff_section_data (input_bfd, o)->contents != NULL) | |
1767 | contents = coff_section_data (input_bfd, o)->contents; | |
1768 | else | |
1769 | { | |
1770 | if (! bfd_get_section_contents (input_bfd, o, finfo->contents, | |
1771 | (file_ptr) 0, o->_raw_size)) | |
1772 | return false; | |
1773 | contents = finfo->contents; | |
1774 | } | |
69645d10 ILT |
1775 | |
1776 | if ((o->flags & SEC_RELOC) != 0) | |
1777 | { | |
1778 | int target_index; | |
1779 | struct internal_reloc *internal_relocs; | |
69645d10 ILT |
1780 | struct internal_reloc *irel; |
1781 | ||
1782 | /* Read in the relocs. */ | |
69645d10 | 1783 | target_index = o->output_section->target_index; |
ff31ebda KR |
1784 | internal_relocs = (_bfd_coff_read_internal_relocs |
1785 | (input_bfd, o, false, finfo->external_relocs, | |
1786 | finfo->info->relocateable, | |
1787 | (finfo->info->relocateable | |
1788 | ? (finfo->section_info[target_index].relocs | |
1789 | + o->output_section->reloc_count) | |
1790 | : finfo->internal_relocs))); | |
1791 | if (internal_relocs == NULL) | |
1792 | return false; | |
69645d10 ILT |
1793 | |
1794 | /* Call processor specific code to relocate the section | |
1795 | contents. */ | |
1796 | if (! bfd_coff_relocate_section (output_bfd, finfo->info, | |
1797 | input_bfd, o, | |
ff31ebda | 1798 | contents, |
69645d10 ILT |
1799 | internal_relocs, |
1800 | finfo->internal_syms, | |
1801 | finfo->sec_ptrs)) | |
1802 | return false; | |
1803 | ||
1804 | if (finfo->info->relocateable) | |
1805 | { | |
1806 | bfd_vma offset; | |
1807 | struct internal_reloc *irelend; | |
1808 | struct coff_link_hash_entry **rel_hash; | |
1809 | ||
1810 | offset = o->output_section->vma + o->output_offset - o->vma; | |
69645d10 ILT |
1811 | irel = internal_relocs; |
1812 | irelend = irel + o->reloc_count; | |
2a895595 ILT |
1813 | rel_hash = (finfo->section_info[target_index].rel_hashes |
1814 | + o->output_section->reloc_count); | |
69645d10 ILT |
1815 | for (; irel < irelend; irel++, rel_hash++) |
1816 | { | |
1817 | struct coff_link_hash_entry *h; | |
d25079a0 | 1818 | boolean adjusted; |
69645d10 ILT |
1819 | |
1820 | *rel_hash = NULL; | |
1821 | ||
1822 | /* Adjust the reloc address and symbol index. */ | |
1823 | ||
1824 | irel->r_vaddr += offset; | |
1825 | ||
2a895595 ILT |
1826 | if (irel->r_symndx == -1) |
1827 | continue; | |
1828 | ||
d25079a0 SC |
1829 | if (adjust_symndx) |
1830 | { | |
1831 | if (! (*adjust_symndx) (output_bfd, finfo->info, | |
1832 | input_bfd, o, irel, | |
1833 | &adjusted)) | |
1834 | return false; | |
1835 | if (adjusted) | |
1836 | continue; | |
1837 | } | |
1838 | ||
69645d10 ILT |
1839 | h = obj_coff_sym_hashes (input_bfd)[irel->r_symndx]; |
1840 | if (h != NULL) | |
1841 | { | |
1842 | /* This is a global symbol. */ | |
1843 | if (h->indx >= 0) | |
1844 | irel->r_symndx = h->indx; | |
1845 | else | |
1846 | { | |
1847 | /* This symbol is being written at the end | |
1848 | of the file, and we do not yet know the | |
1849 | symbol index. We save the pointer to the | |
1850 | hash table entry in the rel_hash list. | |
1851 | We set the indx field to -2 to indicate | |
1852 | that this symbol must not be stripped. */ | |
1853 | *rel_hash = h; | |
1854 | h->indx = -2; | |
1855 | } | |
1856 | } | |
1857 | else | |
1858 | { | |
1859 | long indx; | |
1860 | ||
1861 | indx = finfo->sym_indices[irel->r_symndx]; | |
1862 | if (indx != -1) | |
1863 | irel->r_symndx = indx; | |
1864 | else | |
1865 | { | |
1866 | struct internal_syment *is; | |
1867 | const char *name; | |
1868 | char buf[SYMNMLEN + 1]; | |
1869 | ||
1870 | /* This reloc is against a symbol we are | |
1871 | stripping. It would be possible to | |
1872 | handle this case, but I don't think it's | |
1873 | worth it. */ | |
1874 | is = finfo->internal_syms + irel->r_symndx; | |
1875 | ||
ff31ebda KR |
1876 | name = (_bfd_coff_internal_syment_name |
1877 | (input_bfd, is, buf)); | |
1878 | if (name == NULL) | |
1879 | return false; | |
69645d10 ILT |
1880 | |
1881 | if (! ((*finfo->info->callbacks->unattached_reloc) | |
1882 | (finfo->info, name, input_bfd, o, | |
1883 | irel->r_vaddr))) | |
1884 | return false; | |
1885 | } | |
1886 | } | |
1887 | } | |
1888 | ||
1889 | o->output_section->reloc_count += o->reloc_count; | |
1890 | } | |
1891 | } | |
1892 | ||
1893 | /* Write out the modified section contents. */ | |
1894 | if (! bfd_set_section_contents (output_bfd, o->output_section, | |
ff31ebda | 1895 | contents, o->output_offset, |
69645d10 ILT |
1896 | (o->_cooked_size != 0 |
1897 | ? o->_cooked_size | |
1898 | : o->_raw_size))) | |
1899 | return false; | |
1900 | } | |
1901 | ||
1902 | if (! finfo->info->keep_memory) | |
1903 | { | |
ff31ebda | 1904 | if (! _bfd_coff_free_symbols (input_bfd)) |
69645d10 ILT |
1905 | return false; |
1906 | } | |
1907 | ||
1908 | return true; | |
1909 | } | |
1910 | ||
1911 | /* Write out a global symbol. Called via coff_link_hash_traverse. */ | |
1912 | ||
1913 | static boolean | |
1914 | coff_write_global_sym (h, data) | |
1915 | struct coff_link_hash_entry *h; | |
1916 | PTR data; | |
1917 | { | |
1918 | struct coff_final_link_info *finfo = (struct coff_final_link_info *) data; | |
1919 | bfd *output_bfd; | |
1920 | struct internal_syment isym; | |
1921 | bfd_size_type symesz; | |
1922 | unsigned int i; | |
1923 | ||
1924 | output_bfd = finfo->output_bfd; | |
1925 | ||
1926 | if (h->indx >= 0) | |
1927 | return true; | |
1928 | ||
1929 | if (h->indx != -2 | |
1930 | && (finfo->info->strip == strip_all | |
1931 | || (finfo->info->strip == strip_some | |
1932 | && (bfd_hash_lookup (finfo->info->keep_hash, | |
1933 | h->root.root.string, false, false) | |
1934 | == NULL)))) | |
1935 | return true; | |
1936 | ||
1937 | switch (h->root.type) | |
1938 | { | |
1939 | default: | |
1940 | case bfd_link_hash_new: | |
1941 | abort (); | |
1942 | return false; | |
1943 | ||
1944 | case bfd_link_hash_undefined: | |
d25079a0 | 1945 | case bfd_link_hash_undefweak: |
69645d10 ILT |
1946 | isym.n_scnum = N_UNDEF; |
1947 | isym.n_value = 0; | |
1948 | break; | |
1949 | ||
1950 | case bfd_link_hash_defined: | |
d25079a0 | 1951 | case bfd_link_hash_defweak: |
69645d10 ILT |
1952 | { |
1953 | asection *sec; | |
1954 | ||
1955 | sec = h->root.u.def.section->output_section; | |
1956 | if (bfd_is_abs_section (sec)) | |
1957 | isym.n_scnum = N_ABS; | |
1958 | else | |
1959 | isym.n_scnum = sec->target_index; | |
1960 | isym.n_value = (h->root.u.def.value | |
1961 | + sec->vma | |
1962 | + h->root.u.def.section->output_offset); | |
1963 | } | |
1964 | break; | |
1965 | ||
1966 | case bfd_link_hash_common: | |
1967 | isym.n_scnum = N_UNDEF; | |
1968 | isym.n_value = h->root.u.c.size; | |
1969 | break; | |
1970 | ||
1971 | case bfd_link_hash_indirect: | |
1972 | case bfd_link_hash_warning: | |
1973 | /* Just ignore these. They can't be handled anyhow. */ | |
1974 | return true; | |
1975 | } | |
1976 | ||
1977 | if (strlen (h->root.root.string) <= SYMNMLEN) | |
1978 | strncpy (isym._n._n_name, h->root.root.string, SYMNMLEN); | |
1979 | else | |
1980 | { | |
1981 | boolean hash; | |
1982 | bfd_size_type indx; | |
1983 | ||
1984 | hash = true; | |
1985 | if ((output_bfd->flags & BFD_TRADITIONAL_FORMAT) != 0) | |
1986 | hash = false; | |
1987 | indx = _bfd_stringtab_add (finfo->strtab, h->root.root.string, hash, | |
1988 | false); | |
1989 | if (indx == (bfd_size_type) -1) | |
1990 | { | |
1991 | finfo->failed = true; | |
1992 | return false; | |
1993 | } | |
1994 | isym._n._n_n._n_zeroes = 0; | |
1995 | isym._n._n_n._n_offset = STRING_SIZE_SIZE + indx; | |
1996 | } | |
1997 | ||
1998 | isym.n_sclass = h->class; | |
1999 | isym.n_type = h->type; | |
2000 | ||
2001 | if (isym.n_sclass == C_NULL) | |
2002 | isym.n_sclass = C_EXT; | |
2003 | ||
2004 | isym.n_numaux = h->numaux; | |
2005 | ||
2006 | bfd_coff_swap_sym_out (output_bfd, (PTR) &isym, (PTR) finfo->outsyms); | |
2007 | ||
2008 | symesz = bfd_coff_symesz (output_bfd); | |
2009 | ||
2010 | if (bfd_seek (output_bfd, | |
2011 | (obj_sym_filepos (output_bfd) | |
2012 | + obj_raw_syment_count (output_bfd) * symesz), | |
2013 | SEEK_SET) != 0 | |
2014 | || bfd_write (finfo->outsyms, symesz, 1, output_bfd) != symesz) | |
2015 | { | |
2016 | finfo->failed = true; | |
2017 | return false; | |
2018 | } | |
2019 | ||
2020 | h->indx = obj_raw_syment_count (output_bfd); | |
2021 | ||
2022 | ++obj_raw_syment_count (output_bfd); | |
2023 | ||
2024 | /* Write out any associated aux entries. There normally will be | |
2025 | none. If there are any, I have no idea how to modify them. */ | |
2026 | for (i = 0; i < isym.n_numaux; i++) | |
2027 | { | |
2028 | bfd_coff_swap_aux_out (output_bfd, (PTR) (h->aux + i), isym.n_type, | |
2029 | isym.n_sclass, i, isym.n_numaux, | |
2030 | (PTR) finfo->outsyms); | |
2031 | if (bfd_write (finfo->outsyms, symesz, 1, output_bfd) != symesz) | |
2032 | { | |
2033 | finfo->failed = true; | |
2034 | return false; | |
2035 | } | |
2036 | ++obj_raw_syment_count (output_bfd); | |
2037 | } | |
2038 | ||
2039 | return true; | |
2040 | } | |
2041 | ||
2042 | /* Handle a link order which is supposed to generate a reloc. */ | |
2043 | ||
2044 | static boolean | |
2045 | coff_reloc_link_order (output_bfd, finfo, output_section, link_order) | |
2046 | bfd *output_bfd; | |
2047 | struct coff_final_link_info *finfo; | |
2048 | asection *output_section; | |
2049 | struct bfd_link_order *link_order; | |
2050 | { | |
d25079a0 | 2051 | reloc_howto_type *howto; |
69645d10 ILT |
2052 | struct internal_reloc *irel; |
2053 | struct coff_link_hash_entry **rel_hash_ptr; | |
2054 | ||
2055 | howto = bfd_reloc_type_lookup (output_bfd, link_order->u.reloc.p->reloc); | |
2056 | if (howto == NULL) | |
2057 | { | |
2058 | bfd_set_error (bfd_error_bad_value); | |
2059 | return false; | |
2060 | } | |
2061 | ||
2062 | if (link_order->u.reloc.p->addend != 0) | |
2063 | { | |
2064 | bfd_size_type size; | |
2065 | bfd_byte *buf; | |
2066 | bfd_reloc_status_type rstat; | |
2067 | boolean ok; | |
2068 | ||
2069 | size = bfd_get_reloc_size (howto); | |
2070 | buf = (bfd_byte *) bfd_zmalloc (size); | |
2071 | if (buf == NULL) | |
2072 | { | |
2073 | bfd_set_error (bfd_error_no_memory); | |
2074 | return false; | |
2075 | } | |
2076 | ||
2077 | rstat = _bfd_relocate_contents (howto, output_bfd, | |
2078 | link_order->u.reloc.p->addend, buf); | |
2079 | switch (rstat) | |
2080 | { | |
2081 | case bfd_reloc_ok: | |
2082 | break; | |
2083 | default: | |
2084 | case bfd_reloc_outofrange: | |
2085 | abort (); | |
2086 | case bfd_reloc_overflow: | |
2087 | if (! ((*finfo->info->callbacks->reloc_overflow) | |
2088 | (finfo->info, | |
2089 | (link_order->type == bfd_section_reloc_link_order | |
2090 | ? bfd_section_name (output_bfd, | |
2091 | link_order->u.reloc.p->u.section) | |
2092 | : link_order->u.reloc.p->u.name), | |
2093 | howto->name, link_order->u.reloc.p->addend, | |
2094 | (bfd *) NULL, (asection *) NULL, (bfd_vma) 0))) | |
2095 | { | |
2096 | free (buf); | |
2097 | return false; | |
2098 | } | |
2099 | break; | |
2100 | } | |
2101 | ok = bfd_set_section_contents (output_bfd, output_section, (PTR) buf, | |
2102 | (file_ptr) link_order->offset, size); | |
2103 | free (buf); | |
2104 | if (! ok) | |
2105 | return false; | |
2106 | } | |
2107 | ||
2108 | /* Store the reloc information in the right place. It will get | |
2109 | swapped and written out at the end of the final_link routine. */ | |
2110 | ||
2111 | irel = (finfo->section_info[output_section->target_index].relocs | |
2112 | + output_section->reloc_count); | |
2113 | rel_hash_ptr = (finfo->section_info[output_section->target_index].rel_hashes | |
2114 | + output_section->reloc_count); | |
2115 | ||
2116 | memset (irel, 0, sizeof (struct internal_reloc)); | |
2117 | *rel_hash_ptr = NULL; | |
2118 | ||
2119 | irel->r_vaddr = output_section->vma + link_order->offset; | |
2120 | ||
2121 | if (link_order->type == bfd_section_reloc_link_order) | |
2122 | { | |
2123 | /* We need to somehow locate a symbol in the right section. The | |
2124 | symbol must either have a value of zero, or we must adjust | |
2125 | the addend by the value of the symbol. FIXME: Write this | |
2126 | when we need it. The old linker couldn't handle this anyhow. */ | |
2127 | abort (); | |
2128 | *rel_hash_ptr = NULL; | |
2129 | irel->r_symndx = 0; | |
2130 | } | |
2131 | else | |
2132 | { | |
2133 | struct coff_link_hash_entry *h; | |
2134 | ||
2135 | h = coff_link_hash_lookup (coff_hash_table (finfo->info), | |
2136 | link_order->u.reloc.p->u.name, | |
2137 | false, false, true); | |
2138 | if (h != NULL) | |
2139 | { | |
2140 | if (h->indx >= 0) | |
2141 | irel->r_symndx = h->indx; | |
2142 | else | |
2143 | { | |
2144 | /* Set the index to -2 to force this symbol to get | |
2145 | written out. */ | |
2146 | h->indx = -2; | |
2147 | *rel_hash_ptr = h; | |
2148 | irel->r_symndx = 0; | |
2149 | } | |
2150 | } | |
2151 | else | |
2152 | { | |
2153 | if (! ((*finfo->info->callbacks->unattached_reloc) | |
2154 | (finfo->info, link_order->u.reloc.p->u.name, (bfd *) NULL, | |
2155 | (asection *) NULL, (bfd_vma) 0))) | |
2156 | return false; | |
2157 | irel->r_symndx = 0; | |
2158 | } | |
2159 | } | |
2160 | ||
2161 | /* FIXME: Is this always right? */ | |
2162 | irel->r_type = howto->type; | |
2163 | ||
2164 | /* r_size is only used on the RS/6000, which needs its own linker | |
2165 | routines anyhow. r_extern is only used for ECOFF. */ | |
2166 | ||
2167 | /* FIXME: What is the right value for r_offset? Is zero OK? */ | |
2168 | ||
2169 | ++output_section->reloc_count; | |
2170 | ||
2171 | return true; | |
2172 | } | |
2a895595 ILT |
2173 | |
2174 | /* A basic reloc handling routine which may be used by processors with | |
2175 | simple relocs. */ | |
2176 | ||
2177 | boolean | |
2178 | _bfd_coff_generic_relocate_section (output_bfd, info, input_bfd, | |
2179 | input_section, contents, relocs, syms, | |
2180 | sections) | |
2181 | bfd *output_bfd; | |
2182 | struct bfd_link_info *info; | |
2183 | bfd *input_bfd; | |
2184 | asection *input_section; | |
2185 | bfd_byte *contents; | |
2186 | struct internal_reloc *relocs; | |
2187 | struct internal_syment *syms; | |
2188 | asection **sections; | |
2189 | { | |
2190 | struct internal_reloc *rel; | |
2191 | struct internal_reloc *relend; | |
2192 | ||
d25079a0 | 2193 | |
2a895595 ILT |
2194 | rel = relocs; |
2195 | relend = rel + input_section->reloc_count; | |
2196 | for (; rel < relend; rel++) | |
2197 | { | |
2198 | long symndx; | |
2199 | struct coff_link_hash_entry *h; | |
2200 | struct internal_syment *sym; | |
2201 | bfd_vma addend; | |
2202 | bfd_vma val; | |
d25079a0 | 2203 | reloc_howto_type *howto; |
2a895595 ILT |
2204 | bfd_reloc_status_type rstat; |
2205 | ||
2206 | symndx = rel->r_symndx; | |
2207 | ||
2208 | if (symndx == -1) | |
2209 | { | |
2210 | h = NULL; | |
2211 | sym = NULL; | |
2212 | } | |
2213 | else | |
2214 | { | |
2215 | h = obj_coff_sym_hashes (input_bfd)[symndx]; | |
2216 | sym = syms + symndx; | |
2217 | } | |
2218 | ||
2219 | /* COFF treats common symbols in one of two ways. Either the | |
2220 | size of the symbol is included in the section contents, or it | |
2221 | is not. We assume that the size is not included, and force | |
2222 | the rtype_to_howto function to adjust the addend as needed. */ | |
d25079a0 | 2223 | |
2a895595 ILT |
2224 | if (sym != NULL && sym->n_scnum != 0) |
2225 | addend = - sym->n_value; | |
2226 | else | |
2227 | addend = 0; | |
2228 | ||
d25079a0 | 2229 | |
2a895595 ILT |
2230 | howto = bfd_coff_rtype_to_howto (input_bfd, input_section, rel, h, |
2231 | sym, &addend); | |
2232 | if (howto == NULL) | |
2233 | return false; | |
2234 | ||
d25079a0 SC |
2235 | /* WINDOWS_NT; in this next section, the value of 'val' will be computed. |
2236 | With respect to the .idata and .rsrc sections, the NT_IMAGE_BASE | |
2237 | must be removed from the value that is to be relocated (NT_IMAGE_BASE | |
2238 | is currently defined in internal.h and has value 400000). Now this | |
2239 | value should only be removed from addresses being relocated in the | |
2240 | .idata and .rsrc sections, not the .text section which should have | |
2241 | the 'real' address. In addition, the .rsrc val's must also be | |
2242 | adjusted by the input_section->vma. */ | |
2243 | ||
2a895595 ILT |
2244 | val = 0; |
2245 | ||
2246 | if (h == NULL) | |
2247 | { | |
2248 | asection *sec; | |
2249 | ||
2250 | if (symndx == -1) | |
2251 | { | |
2252 | sec = bfd_abs_section_ptr; | |
2253 | val = 0; | |
2254 | } | |
2255 | else | |
2256 | { | |
2257 | sec = sections[symndx]; | |
d25079a0 | 2258 | val = (sec->output_section->vma |
2a895595 ILT |
2259 | + sec->output_offset |
2260 | + sym->n_value | |
2261 | - sec->vma); | |
2262 | } | |
2263 | } | |
2264 | else | |
2265 | { | |
d25079a0 SC |
2266 | if (h->root.type == bfd_link_hash_defined |
2267 | || h->root.type == bfd_link_hash_defweak) | |
2a895595 ILT |
2268 | { |
2269 | asection *sec; | |
2270 | ||
2271 | sec = h->root.u.def.section; | |
2272 | val = (h->root.u.def.value | |
2273 | + sec->output_section->vma | |
2274 | + sec->output_offset); | |
d25079a0 | 2275 | } |
ff31ebda | 2276 | |
2a895595 ILT |
2277 | else if (! info->relocateable) |
2278 | { | |
2279 | if (! ((*info->callbacks->undefined_symbol) | |
2280 | (info, h->root.root.string, input_bfd, input_section, | |
2281 | rel->r_vaddr - input_section->vma))) | |
2282 | return false; | |
2283 | } | |
2284 | } | |
2285 | ||
89665c85 SC |
2286 | if (info->base_file) |
2287 | { | |
2288 | /* So if this is non pcrelative, and is referenced | |
2289 | to a section or a common symbol, then it needs a reloc */ | |
2290 | if (!howto->pc_relative | |
2291 | && (sym->n_scnum | |
2292 | || sym->n_value)) | |
2293 | { | |
2294 | /* relocation to a symbol in a section which | |
2295 | isn't absolute - we output the address here | |
2296 | to a file */ | |
ece22cd0 | 2297 | bfd_vma addr = rel->r_vaddr |
89665c85 SC |
2298 | + input_section->output_offset |
2299 | + input_section->output_section->vma; | |
be89267c | 2300 | fwrite (&addr, 1,4, (FILE *) info->base_file); |
89665c85 SC |
2301 | } |
2302 | } | |
d25079a0 | 2303 | |
2a895595 ILT |
2304 | rstat = _bfd_final_link_relocate (howto, input_bfd, input_section, |
2305 | contents, | |
2306 | rel->r_vaddr - input_section->vma, | |
2307 | val, addend); | |
2308 | ||
2309 | switch (rstat) | |
2310 | { | |
2311 | default: | |
2312 | abort (); | |
2313 | case bfd_reloc_ok: | |
2314 | break; | |
2315 | case bfd_reloc_overflow: | |
2316 | { | |
2317 | const char *name; | |
2318 | char buf[SYMNMLEN + 1]; | |
2319 | ||
2320 | if (symndx == -1) | |
2321 | name = "*ABS*"; | |
2322 | else if (h != NULL) | |
2323 | name = h->root.root.string; | |
2a895595 ILT |
2324 | else |
2325 | { | |
ff31ebda KR |
2326 | name = _bfd_coff_internal_syment_name (input_bfd, sym, buf); |
2327 | if (name == NULL) | |
2328 | return false; | |
2a895595 ILT |
2329 | } |
2330 | ||
2331 | if (! ((*info->callbacks->reloc_overflow) | |
2332 | (info, name, howto->name, (bfd_vma) 0, input_bfd, | |
2333 | input_section, rel->r_vaddr - input_section->vma))) | |
2334 | return false; | |
2335 | } | |
2336 | } | |
2337 | } | |
2338 | ||
2339 | return true; | |
2340 | } |