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075caafd | 1 | /* Support for the generic parts of COFF, for BFD. |
9783e04a | 2 | Copyright 1990, 1991, 1992, 1993, 1994 Free Software Foundation, Inc. |
075caafd ILT |
3 | Written by Cygnus Support. |
4 | ||
5 | This file is part of BFD, the Binary File Descriptor library. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
20 | ||
21 | /* Most of this hacked by Steve Chamberlain, [email protected]. | |
22 | Split out of coffcode.h by Ian Taylor, [email protected]. */ | |
23 | ||
24 | /* This file contains COFF code that is not dependent on any | |
25 | particular COFF target. There is only one version of this file in | |
26 | libbfd.a, so no target specific code may be put in here. Or, to | |
27 | put it another way, | |
28 | ||
29 | ********** DO NOT PUT TARGET SPECIFIC CODE IN THIS FILE ********** | |
30 | ||
31 | If you need to add some target specific behaviour, add a new hook | |
32 | function to bfd_coff_backend_data. | |
33 | ||
34 | Some of these functions are also called by the ECOFF routines. | |
35 | Those functions may not use any COFF specific information, such as | |
36 | coff_data (abfd). */ | |
37 | ||
38 | #include "bfd.h" | |
39 | #include "sysdep.h" | |
40 | #include "libbfd.h" | |
41 | #include "coff/internal.h" | |
42 | #include "libcoff.h" | |
43 | ||
bfe8224f ILT |
44 | static boolean coff_write_symbol PARAMS ((bfd *, asymbol *, |
45 | combined_entry_type *, | |
46 | unsigned int *)); | |
47 | static boolean coff_write_alien_symbol PARAMS ((bfd *, asymbol *, | |
48 | unsigned int *)); | |
49 | static boolean coff_write_native_symbol PARAMS ((bfd *, coff_symbol_type *, | |
50 | unsigned int *)); | |
51 | ||
075caafd ILT |
52 | static asection bfd_debug_section = { "*DEBUG*" }; |
53 | ||
54 | /* Take a section header read from a coff file (in HOST byte order), | |
55 | and make a BFD "section" out of it. This is used by ECOFF. */ | |
56 | static boolean | |
25057836 JL |
57 | make_a_section_from_file (abfd, hdr, target_index) |
58 | bfd *abfd; | |
59 | struct internal_scnhdr *hdr; | |
60 | unsigned int target_index; | |
075caafd ILT |
61 | { |
62 | asection *return_section; | |
63 | char *name; | |
64 | ||
65 | /* Assorted wastage to null-terminate the name, thanks AT&T! */ | |
66 | name = bfd_alloc(abfd, sizeof (hdr->s_name)+1); | |
67 | if (name == NULL) { | |
d1ad85a6 | 68 | bfd_set_error (bfd_error_no_memory); |
075caafd ILT |
69 | return false; |
70 | } | |
71 | strncpy(name, (char *) &hdr->s_name[0], sizeof (hdr->s_name)); | |
72 | name[sizeof (hdr->s_name)] = 0; | |
73 | ||
74 | return_section = bfd_make_section(abfd, name); | |
75 | if (return_section == NULL) | |
76 | return_section = bfd_coff_make_section_hook (abfd, name); | |
4c3721d5 ILT |
77 | |
78 | /* Handle several sections of the same name. For example, if an executable | |
79 | has two .bss sections, GDB better be able to find both of them | |
80 | (PR 3562). */ | |
81 | if (return_section == NULL) | |
82 | return_section = bfd_make_section_anyway (abfd, name); | |
83 | ||
075caafd ILT |
84 | if (return_section == NULL) |
85 | return false; | |
86 | ||
87 | /* s_paddr is presumed to be = to s_vaddr */ | |
88 | ||
89 | return_section->vma = hdr->s_vaddr; | |
90 | return_section->_raw_size = hdr->s_size; | |
91 | return_section->filepos = hdr->s_scnptr; | |
92 | return_section->rel_filepos = hdr->s_relptr; | |
93 | return_section->reloc_count = hdr->s_nreloc; | |
94 | ||
95 | bfd_coff_set_alignment_hook (abfd, return_section, hdr); | |
96 | ||
97 | return_section->line_filepos = hdr->s_lnnoptr; | |
98 | ||
99 | return_section->lineno_count = hdr->s_nlnno; | |
100 | return_section->userdata = NULL; | |
101 | return_section->next = (asection *) NULL; | |
102 | return_section->flags = bfd_coff_styp_to_sec_flags_hook (abfd, hdr); | |
103 | ||
104 | return_section->target_index = target_index; | |
105 | ||
2d1e6c9c KR |
106 | /* At least on i386-coff, the line number count for a shared library |
107 | section must be ignored. */ | |
108 | if ((return_section->flags & SEC_SHARED_LIBRARY) != 0) | |
109 | return_section->lineno_count = 0; | |
110 | ||
075caafd ILT |
111 | if (hdr->s_nreloc != 0) |
112 | return_section->flags |= SEC_RELOC; | |
113 | /* FIXME: should this check 'hdr->s_size > 0' */ | |
114 | if (hdr->s_scnptr != 0) | |
115 | return_section->flags |= SEC_HAS_CONTENTS; | |
116 | return true; | |
117 | } | |
118 | ||
119 | /* Read in a COFF object and make it into a BFD. This is used by | |
120 | ECOFF as well. */ | |
121 | ||
122 | static | |
123 | bfd_target * | |
25057836 JL |
124 | coff_real_object_p (abfd, nscns, internal_f, internal_a) |
125 | bfd *abfd; | |
126 | unsigned nscns; | |
127 | struct internal_filehdr *internal_f; | |
128 | struct internal_aouthdr *internal_a; | |
075caafd ILT |
129 | { |
130 | PTR tdata; | |
131 | size_t readsize; /* length of file_info */ | |
132 | unsigned int scnhsz; | |
133 | char *external_sections; | |
134 | ||
135 | /* Build a play area */ | |
27f524a3 | 136 | tdata = bfd_coff_mkobject_hook (abfd, (PTR) internal_f, (PTR) internal_a); |
075caafd ILT |
137 | if (tdata == NULL) |
138 | return 0; | |
139 | ||
140 | scnhsz = bfd_coff_scnhsz (abfd); | |
141 | readsize = nscns * scnhsz; | |
142 | external_sections = (char *)bfd_alloc(abfd, readsize); | |
9783e04a DM |
143 | if (!external_sections) |
144 | { | |
d1ad85a6 | 145 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
146 | goto fail; |
147 | } | |
075caafd ILT |
148 | |
149 | if (bfd_read((PTR)external_sections, 1, readsize, abfd) != readsize) { | |
150 | goto fail; | |
151 | } | |
152 | ||
153 | /* Now copy data as required; construct all asections etc */ | |
154 | if (nscns != 0) { | |
155 | unsigned int i; | |
156 | for (i = 0; i < nscns; i++) { | |
157 | struct internal_scnhdr tmp; | |
158 | bfd_coff_swap_scnhdr_in(abfd, (PTR) (external_sections + i * scnhsz), | |
159 | (PTR) &tmp); | |
160 | make_a_section_from_file(abfd,&tmp, i+1); | |
161 | } | |
162 | } | |
163 | ||
164 | /* make_abs_section(abfd);*/ | |
165 | ||
166 | if (bfd_coff_set_arch_mach_hook (abfd, (PTR) internal_f) == false) | |
167 | goto fail; | |
168 | ||
169 | if (!(internal_f->f_flags & F_RELFLG)) | |
170 | abfd->flags |= HAS_RELOC; | |
171 | if ((internal_f->f_flags & F_EXEC)) | |
172 | abfd->flags |= EXEC_P; | |
173 | if (!(internal_f->f_flags & F_LNNO)) | |
174 | abfd->flags |= HAS_LINENO; | |
175 | if (!(internal_f->f_flags & F_LSYMS)) | |
176 | abfd->flags |= HAS_LOCALS; | |
177 | ||
178 | ||
179 | bfd_get_symcount(abfd) = internal_f->f_nsyms; | |
180 | if (internal_f->f_nsyms) | |
181 | abfd->flags |= HAS_SYMS; | |
182 | ||
27f524a3 ILT |
183 | if (internal_a != (struct internal_aouthdr *) NULL) |
184 | bfd_get_start_address (abfd) = internal_a->entry; | |
185 | else | |
186 | bfd_get_start_address (abfd) = 0; | |
075caafd ILT |
187 | |
188 | return abfd->xvec; | |
189 | fail: | |
190 | bfd_release(abfd, tdata); | |
191 | return (bfd_target *)NULL; | |
192 | } | |
193 | ||
d1ad85a6 | 194 | /* Turn a COFF file into a BFD, but fail with bfd_error_wrong_format if it is |
075caafd ILT |
195 | not a COFF file. This is also used by ECOFF. */ |
196 | ||
197 | bfd_target * | |
25057836 JL |
198 | coff_object_p (abfd) |
199 | bfd *abfd; | |
075caafd ILT |
200 | { |
201 | unsigned int filhsz; | |
202 | unsigned int aoutsz; | |
203 | int nscns; | |
204 | PTR filehdr; | |
205 | struct internal_filehdr internal_f; | |
206 | struct internal_aouthdr internal_a; | |
207 | ||
075caafd ILT |
208 | /* figure out how much to read */ |
209 | filhsz = bfd_coff_filhsz (abfd); | |
210 | aoutsz = bfd_coff_aoutsz (abfd); | |
211 | ||
212 | filehdr = bfd_alloc (abfd, filhsz); | |
213 | if (filehdr == NULL) | |
214 | return 0; | |
215 | if (bfd_read(filehdr, 1, filhsz, abfd) != filhsz) | |
25057836 JL |
216 | { |
217 | if (bfd_get_error () != bfd_error_system_call) | |
218 | bfd_set_error (bfd_error_wrong_format); | |
219 | return 0; | |
220 | } | |
075caafd ILT |
221 | bfd_coff_swap_filehdr_in(abfd, filehdr, &internal_f); |
222 | bfd_release (abfd, filehdr); | |
223 | ||
224 | if (bfd_coff_bad_format_hook (abfd, &internal_f) == false) { | |
d1ad85a6 | 225 | bfd_set_error (bfd_error_wrong_format); |
075caafd ILT |
226 | return 0; |
227 | } | |
228 | nscns =internal_f.f_nscns; | |
229 | ||
230 | if (internal_f.f_opthdr) { | |
231 | PTR opthdr; | |
232 | ||
233 | opthdr = bfd_alloc (abfd, aoutsz); | |
234 | if (opthdr == NULL) | |
235 | return 0;; | |
236 | if (bfd_read(opthdr, 1,aoutsz, abfd) != aoutsz) { | |
237 | return 0; | |
238 | } | |
239 | bfd_coff_swap_aouthdr_in(abfd, opthdr, (PTR)&internal_a); | |
240 | } | |
241 | ||
242 | /* Seek past the opt hdr stuff */ | |
243 | bfd_seek(abfd, (file_ptr) (internal_f.f_opthdr + filhsz), SEEK_SET); | |
244 | ||
27f524a3 ILT |
245 | return coff_real_object_p(abfd, nscns, &internal_f, |
246 | (internal_f.f_opthdr != 0 | |
247 | ? &internal_a | |
248 | : (struct internal_aouthdr *) NULL)); | |
075caafd ILT |
249 | } |
250 | ||
251 | /* Get the BFD section from a COFF symbol section number. */ | |
252 | ||
253 | struct sec * | |
25057836 JL |
254 | coff_section_from_bfd_index (abfd, index) |
255 | bfd *abfd; | |
256 | int index; | |
075caafd ILT |
257 | { |
258 | struct sec *answer = abfd->sections; | |
259 | ||
260 | if (index == N_ABS) | |
261 | { | |
262 | return &bfd_abs_section; | |
263 | } | |
264 | if (index == N_UNDEF) | |
265 | { | |
266 | return &bfd_und_section; | |
267 | } | |
268 | if(index == N_DEBUG) | |
269 | { | |
270 | return &bfd_debug_section; | |
271 | ||
272 | } | |
273 | ||
274 | while (answer) { | |
275 | if (answer->target_index == index) | |
276 | return answer; | |
277 | answer = answer->next; | |
278 | } | |
279 | BFD_ASSERT(0); | |
280 | return &bfd_und_section; /* For gcc -W and lint. Never executed. */ | |
281 | } | |
282 | ||
283 | /* Get the upper bound of a COFF symbol table. */ | |
284 | ||
326e32d7 | 285 | long |
075caafd ILT |
286 | coff_get_symtab_upper_bound(abfd) |
287 | bfd *abfd; | |
288 | { | |
289 | if (!bfd_coff_slurp_symbol_table(abfd)) | |
326e32d7 | 290 | return -1; |
075caafd ILT |
291 | |
292 | return (bfd_get_symcount(abfd) + 1) * (sizeof(coff_symbol_type *)); | |
293 | } | |
294 | ||
295 | ||
296 | /* Canonicalize a COFF symbol table. */ | |
297 | ||
326e32d7 | 298 | long |
25057836 JL |
299 | coff_get_symtab (abfd, alocation) |
300 | bfd *abfd; | |
301 | asymbol **alocation; | |
075caafd ILT |
302 | { |
303 | unsigned int counter = 0; | |
304 | coff_symbol_type *symbase; | |
305 | coff_symbol_type **location = (coff_symbol_type **) (alocation); | |
306 | if (!bfd_coff_slurp_symbol_table(abfd)) | |
326e32d7 | 307 | return -1; |
075caafd ILT |
308 | |
309 | symbase = obj_symbols(abfd); | |
310 | while (counter < bfd_get_symcount(abfd)) | |
311 | { | |
312 | /* This nasty code looks at the symbol to decide whether or | |
313 | not it is descibes a constructor/destructor entry point. It | |
314 | is structured this way to (hopefully) speed non matches */ | |
315 | #if 0 | |
316 | if (0 && symbase->symbol.name[9] == '$') | |
317 | { | |
318 | bfd_constructor_entry(abfd, | |
319 | (asymbol **)location, | |
320 | symbase->symbol.name[10] == 'I' ? | |
321 | "CTOR" : "DTOR"); | |
322 | } | |
323 | #endif | |
324 | *(location++) = symbase++; | |
325 | counter++; | |
326 | } | |
327 | *location++ = 0; | |
328 | return bfd_get_symcount(abfd); | |
329 | } | |
330 | ||
331 | /* Set lineno_count for the output sections of a COFF file. */ | |
332 | ||
27f524a3 | 333 | int |
25057836 JL |
334 | coff_count_linenumbers (abfd) |
335 | bfd *abfd; | |
075caafd ILT |
336 | { |
337 | unsigned int limit = bfd_get_symcount(abfd); | |
338 | unsigned int i; | |
27f524a3 | 339 | int total = 0; |
075caafd | 340 | asymbol **p; |
27f524a3 ILT |
341 | { |
342 | asection *s = abfd->sections->output_section; | |
343 | while (s) { | |
344 | BFD_ASSERT(s->lineno_count == 0); | |
345 | s = s->next; | |
346 | } | |
347 | } | |
075caafd ILT |
348 | |
349 | ||
350 | for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) { | |
351 | asymbol *q_maybe = *p; | |
352 | if (bfd_asymbol_flavour(q_maybe) == bfd_target_coff_flavour) { | |
353 | coff_symbol_type *q = coffsymbol(q_maybe); | |
354 | if (q->lineno) { | |
355 | /* | |
356 | This symbol has a linenumber, increment the owning | |
357 | section's linenumber count | |
358 | */ | |
359 | alent *l = q->lineno; | |
360 | q->symbol.section->output_section->lineno_count++; | |
27f524a3 | 361 | total ++; |
075caafd ILT |
362 | l++; |
363 | while (l->line_number) { | |
27f524a3 | 364 | total ++; |
075caafd ILT |
365 | q->symbol.section->output_section->lineno_count++; |
366 | l++; | |
367 | } | |
368 | } | |
369 | } | |
370 | } | |
27f524a3 | 371 | return total; |
075caafd ILT |
372 | } |
373 | ||
374 | /* Takes a bfd and a symbol, returns a pointer to the coff specific | |
375 | area of the symbol if there is one. */ | |
376 | ||
330595d0 | 377 | /*ARGSUSED*/ |
075caafd | 378 | coff_symbol_type * |
25057836 JL |
379 | coff_symbol_from (ignore_abfd, symbol) |
380 | bfd *ignore_abfd; | |
381 | asymbol *symbol; | |
075caafd ILT |
382 | { |
383 | if (bfd_asymbol_flavour(symbol) != bfd_target_coff_flavour) | |
384 | return (coff_symbol_type *)NULL; | |
385 | ||
386 | if (bfd_asymbol_bfd(symbol)->tdata.coff_obj_data == (coff_data_type*)NULL) | |
387 | return (coff_symbol_type *)NULL; | |
388 | ||
389 | return (coff_symbol_type *) symbol; | |
390 | } | |
391 | ||
392 | static void | |
25057836 JL |
393 | fixup_symbol_value (coff_symbol_ptr, syment) |
394 | coff_symbol_type *coff_symbol_ptr; | |
395 | struct internal_syment *syment; | |
075caafd ILT |
396 | { |
397 | ||
398 | /* Normalize the symbol flags */ | |
e61cfdf8 | 399 | if (bfd_is_com_section (coff_symbol_ptr->symbol.section)) { |
075caafd ILT |
400 | /* a common symbol is undefined with a value */ |
401 | syment->n_scnum = N_UNDEF; | |
402 | syment->n_value = coff_symbol_ptr->symbol.value; | |
403 | } | |
404 | else if (coff_symbol_ptr->symbol.flags & BSF_DEBUGGING) { | |
405 | syment->n_value = coff_symbol_ptr->symbol.value; | |
406 | } | |
407 | else if (coff_symbol_ptr->symbol.section == & bfd_und_section) { | |
408 | syment->n_scnum = N_UNDEF; | |
409 | syment->n_value = 0; | |
410 | } | |
411 | else { | |
412 | if (coff_symbol_ptr->symbol.section) { | |
413 | syment->n_scnum = | |
414 | coff_symbol_ptr->symbol.section->output_section->target_index; | |
415 | ||
416 | syment->n_value = | |
417 | coff_symbol_ptr->symbol.value + | |
418 | coff_symbol_ptr->symbol.section->output_offset + | |
419 | coff_symbol_ptr->symbol.section->output_section->vma; | |
420 | } | |
421 | else { | |
422 | BFD_ASSERT(0); | |
423 | /* This can happen, but I don't know why yet ([email protected]) */ | |
424 | syment->n_scnum = N_ABS; | |
425 | syment->n_value = coff_symbol_ptr->symbol.value; | |
426 | } | |
427 | } | |
428 | } | |
429 | ||
430 | /* run through all the symbols in the symbol table and work out what | |
431 | their indexes into the symbol table will be when output | |
432 | ||
433 | Coff requires that each C_FILE symbol points to the next one in the | |
434 | chain, and that the last one points to the first external symbol. We | |
435 | do that here too. | |
436 | ||
437 | */ | |
9783e04a | 438 | boolean |
25057836 JL |
439 | coff_renumber_symbols (bfd_ptr) |
440 | bfd *bfd_ptr; | |
075caafd ILT |
441 | { |
442 | unsigned int symbol_count = bfd_get_symcount(bfd_ptr); | |
443 | asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols; | |
444 | unsigned int native_index = 0; | |
445 | struct internal_syment *last_file = (struct internal_syment *)NULL; | |
446 | unsigned int symbol_index; | |
447 | ||
448 | /* COFF demands that undefined symbols come after all other symbols. | |
449 | Since we don't need to impose this extra knowledge on all our client | |
450 | programs, deal with that here. Sort the symbol table; just move the | |
451 | undefined symbols to the end, leaving the rest alone. */ | |
452 | /* @@ Do we have some condition we could test for, so we don't always | |
453 | have to do this? I don't think relocatability is quite right, but | |
454 | I'm not certain. [raeburn:19920508.1711EST] */ | |
455 | { | |
456 | asymbol **newsyms; | |
457 | int i; | |
458 | ||
459 | newsyms = (asymbol **) bfd_alloc_by_size_t (bfd_ptr, | |
460 | sizeof (asymbol *) | |
461 | * (symbol_count + 1)); | |
9783e04a DM |
462 | if (!newsyms) |
463 | { | |
d1ad85a6 | 464 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
465 | return false; |
466 | } | |
075caafd ILT |
467 | bfd_ptr->outsymbols = newsyms; |
468 | for (i = 0; i < symbol_count; i++) | |
469 | if (symbol_ptr_ptr[i]->section != &bfd_und_section) | |
470 | *newsyms++ = symbol_ptr_ptr[i]; | |
471 | for (i = 0; i < symbol_count; i++) | |
472 | if (symbol_ptr_ptr[i]->section == &bfd_und_section) | |
473 | *newsyms++ = symbol_ptr_ptr[i]; | |
474 | *newsyms = (asymbol *) NULL; | |
475 | symbol_ptr_ptr = bfd_ptr->outsymbols; | |
476 | } | |
477 | ||
478 | for (symbol_index = 0; symbol_index < symbol_count; symbol_index++) | |
479 | { | |
480 | coff_symbol_type *coff_symbol_ptr = coff_symbol_from(bfd_ptr, symbol_ptr_ptr[symbol_index]); | |
481 | if (coff_symbol_ptr && coff_symbol_ptr->native) { | |
482 | combined_entry_type *s = coff_symbol_ptr->native; | |
483 | int i; | |
484 | ||
485 | if (s->u.syment.n_sclass == C_FILE) | |
486 | { | |
487 | if (last_file != (struct internal_syment *)NULL) { | |
488 | last_file->n_value = native_index; | |
489 | } | |
490 | last_file = &(s->u.syment); | |
491 | } | |
492 | else { | |
493 | ||
494 | /* Modify the symbol values according to their section and | |
495 | type */ | |
496 | ||
497 | fixup_symbol_value(coff_symbol_ptr, &(s->u.syment)); | |
498 | } | |
499 | for (i = 0; i < s->u.syment.n_numaux + 1; i++) { | |
500 | s[i].offset = native_index ++; | |
501 | } | |
502 | } | |
503 | else { | |
504 | native_index++; | |
505 | } | |
506 | } | |
507 | obj_conv_table_size (bfd_ptr) = native_index; | |
9783e04a | 508 | return true; |
075caafd ILT |
509 | } |
510 | ||
511 | /* | |
512 | Run thorough the symbol table again, and fix it so that all pointers to | |
513 | entries are changed to the entries' index in the output symbol table. | |
514 | ||
515 | */ | |
516 | void | |
9783e04a DM |
517 | coff_mangle_symbols (bfd_ptr) |
518 | bfd *bfd_ptr; | |
075caafd | 519 | { |
9783e04a | 520 | unsigned int symbol_count = bfd_get_symcount (bfd_ptr); |
075caafd ILT |
521 | asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols; |
522 | unsigned int symbol_index; | |
523 | ||
524 | for (symbol_index = 0; symbol_index < symbol_count; symbol_index++) | |
9783e04a DM |
525 | { |
526 | coff_symbol_type *coff_symbol_ptr = | |
527 | coff_symbol_from (bfd_ptr, symbol_ptr_ptr[symbol_index]); | |
075caafd | 528 | |
9783e04a DM |
529 | if (coff_symbol_ptr && coff_symbol_ptr->native) |
530 | { | |
075caafd ILT |
531 | int i; |
532 | combined_entry_type *s = coff_symbol_ptr->native; | |
533 | ||
9783e04a DM |
534 | if (s->fix_value) |
535 | { | |
536 | /* FIXME: We should use a union here. */ | |
537 | s->u.syment.n_value = | |
538 | ((combined_entry_type *) s->u.syment.n_value)->offset; | |
539 | s->fix_value = 0; | |
075caafd | 540 | } |
9783e04a DM |
541 | for (i = 0; i < s->u.syment.n_numaux ; i++) |
542 | { | |
543 | combined_entry_type *a = s + i + 1; | |
544 | if (a->fix_tag) | |
545 | { | |
546 | a->u.auxent.x_sym.x_tagndx.l = | |
547 | a->u.auxent.x_sym.x_tagndx.p->offset; | |
548 | a->fix_tag = 0; | |
549 | } | |
550 | if (a->fix_end) | |
551 | { | |
552 | a->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l = | |
553 | a->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p->offset; | |
554 | a->fix_end = 0; | |
555 | } | |
556 | if (a->fix_scnlen) | |
557 | { | |
558 | a->u.auxent.x_csect.x_scnlen.l = | |
559 | a->u.auxent.x_csect.x_scnlen.p->offset; | |
560 | a->fix_scnlen = 0; | |
561 | } | |
075caafd | 562 | } |
075caafd | 563 | } |
9783e04a | 564 | } |
075caafd ILT |
565 | } |
566 | ||
9783e04a DM |
567 | static bfd_size_type string_size; |
568 | static bfd_size_type debug_string_size; | |
569 | static asection *debug_string_section; | |
075caafd ILT |
570 | |
571 | static void | |
25057836 JL |
572 | coff_fix_symbol_name (abfd, symbol, native) |
573 | bfd *abfd; | |
574 | asymbol *symbol; | |
575 | combined_entry_type *native; | |
075caafd ILT |
576 | { |
577 | unsigned int name_length; | |
578 | union internal_auxent *auxent; | |
579 | char * name = ( char *)(symbol->name); | |
580 | ||
581 | if (name == (char *) NULL) { | |
582 | /* coff symbols always have names, so we'll make one up */ | |
583 | symbol->name = "strange"; | |
584 | name = (char *)symbol->name; | |
585 | } | |
586 | name_length = strlen(name); | |
587 | ||
588 | if (native->u.syment.n_sclass == C_FILE) { | |
589 | strncpy(native->u.syment._n._n_name, ".file", SYMNMLEN); | |
590 | auxent = &(native+1)->u.auxent; | |
591 | ||
592 | if (bfd_coff_long_filenames (abfd)) { | |
593 | if (name_length <= FILNMLEN) { | |
594 | strncpy(auxent->x_file.x_fname, name, FILNMLEN); | |
595 | } | |
596 | else { | |
597 | auxent->x_file.x_n.x_offset = string_size + 4; | |
598 | auxent->x_file.x_n.x_zeroes = 0; | |
599 | string_size += name_length + 1; | |
600 | } | |
601 | } | |
602 | else { | |
603 | strncpy(auxent->x_file.x_fname, name, FILNMLEN); | |
604 | if (name_length > FILNMLEN) { | |
605 | name[FILNMLEN] = '\0'; | |
606 | } | |
607 | } | |
608 | } | |
609 | else | |
9783e04a DM |
610 | { /* NOT A C_FILE SYMBOL */ |
611 | if (name_length <= SYMNMLEN) | |
612 | { | |
075caafd ILT |
613 | /* This name will fit into the symbol neatly */ |
614 | strncpy(native->u.syment._n._n_name, symbol->name, SYMNMLEN); | |
615 | } | |
9783e04a DM |
616 | else if (! bfd_coff_symname_in_debug (abfd, &native->u.syment)) |
617 | { | |
075caafd ILT |
618 | native->u.syment._n._n_n._n_offset = string_size + 4; |
619 | native->u.syment._n._n_n._n_zeroes = 0; | |
620 | string_size += name_length + 1; | |
621 | } | |
9783e04a DM |
622 | else |
623 | { | |
624 | long filepos; | |
625 | bfd_byte buf[2]; | |
626 | ||
627 | /* This name should be written into the .debug section. For | |
628 | some reason each name is preceded by a two byte length | |
629 | and also followed by a null byte. FIXME: We assume that | |
630 | the .debug section has already been created, and that it | |
631 | is large enough. */ | |
632 | if (debug_string_section == (asection *) NULL) | |
633 | debug_string_section = bfd_get_section_by_name (abfd, ".debug"); | |
634 | filepos = bfd_tell (abfd); | |
635 | bfd_put_16 (abfd, name_length + 1, buf); | |
636 | if (! bfd_set_section_contents (abfd, | |
637 | debug_string_section, | |
638 | (PTR) buf, | |
639 | (file_ptr) debug_string_size, | |
640 | (bfd_size_type) 2) | |
641 | || ! bfd_set_section_contents (abfd, | |
642 | debug_string_section, | |
643 | (PTR) symbol->name, | |
644 | (file_ptr) debug_string_size + 2, | |
645 | (bfd_size_type) name_length + 1)) | |
646 | abort (); | |
647 | if (bfd_seek (abfd, filepos, SEEK_SET) != 0) | |
648 | abort (); | |
649 | native->u.syment._n._n_n._n_offset = debug_string_size + 2; | |
650 | native->u.syment._n._n_n._n_zeroes = 0; | |
651 | debug_string_size += name_length + 3; | |
652 | } | |
653 | } | |
075caafd ILT |
654 | } |
655 | ||
bfe8224f ILT |
656 | /* We need to keep track of the symbol index so that when we write out |
657 | the relocs we can get the index for a symbol. This method is a | |
658 | hack. FIXME. */ | |
659 | ||
660 | #define set_index(symbol, idx) ((symbol)->udata = (PTR) (idx)) | |
661 | ||
662 | /* Write a symbol out to a COFF file. */ | |
075caafd | 663 | |
bfe8224f | 664 | static boolean |
25057836 JL |
665 | coff_write_symbol (abfd, symbol, native, written) |
666 | bfd *abfd; | |
667 | asymbol *symbol; | |
668 | combined_entry_type *native; | |
bfe8224f | 669 | unsigned int *written; |
075caafd | 670 | { |
bfe8224f ILT |
671 | unsigned int numaux = native->u.syment.n_numaux; |
672 | int type = native->u.syment.n_type; | |
673 | int class = native->u.syment.n_sclass; | |
075caafd ILT |
674 | PTR buf; |
675 | bfd_size_type symesz; | |
676 | ||
bfe8224f ILT |
677 | /* @@ bfd_debug_section isn't accessible outside this file, but we |
678 | know that C_FILE symbols belong there. So move them. */ | |
075caafd ILT |
679 | if (native->u.syment.n_sclass == C_FILE) |
680 | symbol->section = &bfd_debug_section; | |
681 | ||
682 | if (symbol->section == &bfd_abs_section) | |
bfe8224f ILT |
683 | { |
684 | native->u.syment.n_scnum = N_ABS; | |
685 | } | |
075caafd | 686 | else if (symbol->section == &bfd_debug_section) |
bfe8224f ILT |
687 | { |
688 | native->u.syment.n_scnum = N_DEBUG; | |
689 | } | |
075caafd | 690 | else if (symbol->section == &bfd_und_section) |
bfe8224f ILT |
691 | { |
692 | native->u.syment.n_scnum = N_UNDEF; | |
693 | } | |
075caafd | 694 | else |
bfe8224f ILT |
695 | { |
696 | native->u.syment.n_scnum = | |
697 | symbol->section->output_section->target_index; | |
698 | } | |
075caafd | 699 | |
bfe8224f | 700 | coff_fix_symbol_name (abfd, symbol, native); |
075caafd ILT |
701 | |
702 | symesz = bfd_coff_symesz (abfd); | |
703 | buf = bfd_alloc (abfd, symesz); | |
9783e04a DM |
704 | if (!buf) |
705 | { | |
d1ad85a6 | 706 | bfd_set_error (bfd_error_no_memory); |
bfe8224f | 707 | return false; |
9783e04a | 708 | } |
bfe8224f ILT |
709 | bfd_coff_swap_sym_out (abfd, &native->u.syment, buf); |
710 | if (bfd_write (buf, 1, symesz, abfd) != symesz) | |
711 | return false; | |
075caafd ILT |
712 | bfd_release (abfd, buf); |
713 | ||
714 | if (native->u.syment.n_numaux > 0) | |
715 | { | |
716 | bfd_size_type auxesz; | |
717 | unsigned int j; | |
718 | ||
719 | auxesz = bfd_coff_auxesz (abfd); | |
720 | buf = bfd_alloc (abfd, auxesz); | |
9783e04a DM |
721 | if (!buf) |
722 | { | |
d1ad85a6 | 723 | bfd_set_error (bfd_error_no_memory); |
bfe8224f | 724 | return false; |
9783e04a | 725 | } |
075caafd ILT |
726 | for (j = 0; j < native->u.syment.n_numaux; j++) |
727 | { | |
bfe8224f ILT |
728 | bfd_coff_swap_aux_out (abfd, |
729 | &((native + j + 1)->u.auxent), | |
730 | type, | |
731 | class, | |
732 | j, | |
733 | native->u.syment.n_numaux, | |
734 | buf); | |
735 | if (bfd_write (buf, 1, auxesz, abfd)!= auxesz) | |
736 | return false; | |
075caafd ILT |
737 | } |
738 | bfd_release (abfd, buf); | |
739 | } | |
bfe8224f ILT |
740 | |
741 | /* Store the index for use when we write out the relocs. */ | |
742 | set_index (symbol, *written); | |
743 | ||
744 | *written += numaux + 1; | |
745 | return true; | |
075caafd ILT |
746 | } |
747 | ||
bfe8224f ILT |
748 | /* Write out a symbol to a COFF file that does not come from a COFF |
749 | file originally. This symbol may have been created by the linker, | |
750 | or we may be linking a non COFF file to a COFF file. */ | |
075caafd | 751 | |
bfe8224f | 752 | static boolean |
25057836 JL |
753 | coff_write_alien_symbol (abfd, symbol, written) |
754 | bfd *abfd; | |
755 | asymbol *symbol; | |
bfe8224f | 756 | unsigned int *written; |
075caafd | 757 | { |
075caafd ILT |
758 | combined_entry_type *native; |
759 | combined_entry_type dummy; | |
bfe8224f | 760 | |
075caafd ILT |
761 | native = &dummy; |
762 | native->u.syment.n_type = T_NULL; | |
763 | native->u.syment.n_flags = 0; | |
764 | if (symbol->section == &bfd_und_section) | |
bfe8224f ILT |
765 | { |
766 | native->u.syment.n_scnum = N_UNDEF; | |
767 | native->u.syment.n_value = symbol->value; | |
075caafd | 768 | } |
e61cfdf8 | 769 | else if (bfd_is_com_section (symbol->section)) |
bfe8224f ILT |
770 | { |
771 | native->u.syment.n_scnum = N_UNDEF; | |
772 | native->u.syment.n_value = symbol->value; | |
075caafd | 773 | } |
bfe8224f | 774 | else if (symbol->flags & BSF_DEBUGGING) |
075caafd | 775 | { |
bfe8224f ILT |
776 | /* Remove the symbol name so that it does not take up any space. |
777 | COFF won't know what to do with it anyhow. */ | |
778 | symbol->name = ""; | |
075caafd | 779 | } |
bfe8224f ILT |
780 | else |
781 | { | |
782 | native->u.syment.n_scnum = | |
783 | symbol->section->output_section->target_index; | |
784 | native->u.syment.n_value = (symbol->value | |
785 | + symbol->section->output_section->vma | |
786 | + symbol->section->output_offset); | |
787 | ||
788 | /* Copy the any flags from the the file header into the symbol. | |
789 | FIXME: Why? */ | |
790 | { | |
791 | coff_symbol_type *c = coff_symbol_from (abfd, symbol); | |
792 | if (c != (coff_symbol_type *) NULL) | |
793 | native->u.syment.n_flags = bfd_asymbol_bfd (&c->symbol)->flags; | |
794 | } | |
075caafd ILT |
795 | } |
796 | ||
bfe8224f | 797 | native->u.syment.n_type = 0; |
075caafd | 798 | if (symbol->flags & BSF_LOCAL) |
bfe8224f | 799 | native->u.syment.n_sclass = C_STAT; |
075caafd | 800 | else |
bfe8224f ILT |
801 | native->u.syment.n_sclass = C_EXT; |
802 | native->u.syment.n_numaux = 0; | |
075caafd | 803 | |
bfe8224f | 804 | return coff_write_symbol (abfd, symbol, native, written); |
075caafd ILT |
805 | } |
806 | ||
bfe8224f ILT |
807 | /* Write a native symbol to a COFF file. */ |
808 | ||
809 | static boolean | |
25057836 JL |
810 | coff_write_native_symbol (abfd, symbol, written) |
811 | bfd *abfd; | |
812 | coff_symbol_type *symbol; | |
bfe8224f | 813 | unsigned int *written; |
075caafd | 814 | { |
075caafd | 815 | combined_entry_type *native = symbol->native; |
bfe8224f | 816 | alent *lineno = symbol->lineno; |
075caafd | 817 | |
bfe8224f ILT |
818 | /* If this symbol has an associated line number, we must store the |
819 | symbol index in the line number field. We also tag the auxent to | |
820 | point to the right place in the lineno table. */ | |
821 | if (lineno && !symbol->done_lineno) | |
822 | { | |
823 | unsigned int count = 0; | |
824 | lineno[count].u.offset = *written; | |
825 | if (native->u.syment.n_numaux) | |
826 | { | |
827 | union internal_auxent *a = &((native+1)->u.auxent); | |
075caafd | 828 | |
bfe8224f ILT |
829 | a->x_sym.x_fcnary.x_fcn.x_lnnoptr = |
830 | symbol->symbol.section->output_section->moving_line_filepos; | |
831 | } | |
075caafd | 832 | |
bfe8224f ILT |
833 | /* Count and relocate all other linenumbers. */ |
834 | count++; | |
835 | while (lineno[count].line_number != 0) | |
836 | { | |
075caafd | 837 | #if 0 |
bfe8224f ILT |
838 | /* 13 april 92. sac |
839 | I've been told this, but still need proof: | |
840 | > The second bug is also in `bfd/coffcode.h'. This bug | |
841 | > causes the linker to screw up the pc-relocations for | |
842 | > all the line numbers in COFF code. This bug isn't only | |
843 | > specific to A29K implementations, but affects all | |
844 | > systems using COFF format binaries. Note that in COFF | |
845 | > object files, the line number core offsets output by | |
846 | > the assembler are relative to the start of each | |
847 | > procedure, not to the start of the .text section. This | |
848 | > patch relocates the line numbers relative to the | |
849 | > `native->u.syment.n_value' instead of the section | |
850 | > virtual address. | |
851 | > [email protected] (Jon Olson) | |
852 | */ | |
853 | lineno[count].u.offset += native->u.syment.n_value; | |
075caafd | 854 | #else |
bfe8224f ILT |
855 | lineno[count].u.offset += |
856 | (symbol->symbol.section->output_section->vma | |
857 | + symbol->symbol.section->output_offset); | |
075caafd | 858 | #endif |
bfe8224f ILT |
859 | count++; |
860 | } | |
861 | symbol->done_lineno = true; | |
075caafd | 862 | |
bfe8224f ILT |
863 | symbol->symbol.section->output_section->moving_line_filepos += |
864 | count * bfd_coff_linesz (abfd); | |
865 | } | |
866 | ||
867 | return coff_write_symbol (abfd, &(symbol->symbol), native, written); | |
075caafd ILT |
868 | } |
869 | ||
bfe8224f ILT |
870 | /* Write out the COFF symbols. */ |
871 | ||
872 | boolean | |
25057836 | 873 | coff_write_symbols (abfd) |
bfe8224f | 874 | bfd *abfd; |
075caafd | 875 | { |
bfe8224f ILT |
876 | unsigned int i; |
877 | unsigned int limit = bfd_get_symcount(abfd); | |
878 | unsigned int written = 0; | |
879 | asymbol **p; | |
075caafd ILT |
880 | |
881 | string_size = 0; | |
9783e04a | 882 | debug_string_size = 0; |
075caafd ILT |
883 | |
884 | /* Seek to the right place */ | |
bfe8224f ILT |
885 | if (bfd_seek (abfd, obj_sym_filepos(abfd), SEEK_SET) != 0) |
886 | return false; | |
075caafd ILT |
887 | |
888 | /* Output all the symbols we have */ | |
889 | ||
890 | written = 0; | |
891 | for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) | |
bfe8224f ILT |
892 | { |
893 | asymbol *symbol = *p; | |
894 | coff_symbol_type *c_symbol = coff_symbol_from (abfd, symbol); | |
075caafd | 895 | |
bfe8224f ILT |
896 | if (c_symbol == (coff_symbol_type *) NULL |
897 | || c_symbol->native == (combined_entry_type *)NULL) | |
898 | { | |
899 | if (! coff_write_alien_symbol (abfd, symbol, &written)) | |
900 | return false; | |
901 | } | |
902 | else | |
903 | { | |
904 | if (! coff_write_native_symbol (abfd, c_symbol, &written)) | |
905 | return false; | |
906 | } | |
907 | } | |
075caafd | 908 | |
bfe8224f | 909 | bfd_get_symcount (abfd) = written; |
075caafd ILT |
910 | |
911 | /* Now write out strings */ | |
912 | ||
913 | if (string_size != 0) | |
914 | { | |
bfe8224f | 915 | unsigned int size = string_size + 4; |
075caafd ILT |
916 | bfd_byte buffer[4]; |
917 | ||
bfe8224f ILT |
918 | bfd_h_put_32 (abfd, size, buffer); |
919 | bfd_write ((PTR) buffer, 1, sizeof (buffer), abfd); | |
075caafd ILT |
920 | for (p = abfd->outsymbols, i = 0; |
921 | i < limit; | |
922 | i++, p++) | |
bfe8224f ILT |
923 | { |
924 | asymbol *q = *p; | |
925 | size_t name_length = strlen (q->name); | |
926 | coff_symbol_type *c_symbol = coff_symbol_from (abfd, q); | |
927 | size_t maxlen; | |
928 | ||
929 | /* Figure out whether the symbol name should go in the string | |
930 | table. Symbol names that are short enough are stored | |
931 | directly in the syment structure. File names permit a | |
932 | different, longer, length in the syment structure. On | |
933 | XCOFF, some symbol names are stored in the .debug section | |
934 | rather than in the string table. */ | |
935 | ||
936 | if (c_symbol == NULL | |
937 | || c_symbol->native == NULL) | |
938 | { | |
939 | /* This is not a COFF symbol, so it certainly is not a | |
940 | file name, nor does it go in the .debug section. */ | |
941 | maxlen = SYMNMLEN; | |
942 | } | |
943 | else if (bfd_coff_symname_in_debug (abfd, | |
944 | &c_symbol->native->u.syment)) | |
945 | { | |
946 | /* This symbol name is in the XCOFF .debug section. | |
947 | Don't write it into the string table. */ | |
948 | maxlen = name_length; | |
949 | } | |
950 | else if (c_symbol->native->u.syment.n_sclass == C_FILE) | |
951 | maxlen = FILNMLEN; | |
952 | else | |
953 | maxlen = SYMNMLEN; | |
954 | ||
955 | if (name_length > maxlen) | |
956 | { | |
957 | if (bfd_write ((PTR) (q->name), 1, name_length + 1, abfd) | |
958 | != name_length + 1) | |
959 | return false; | |
960 | } | |
961 | } | |
075caafd | 962 | } |
bfe8224f ILT |
963 | else |
964 | { | |
965 | /* We would normally not write anything here, but we'll write | |
966 | out 4 so that any stupid coff reader which tries to read the | |
967 | string table even when there isn't one won't croak. */ | |
968 | unsigned int size = 4; | |
969 | bfd_byte buffer[4]; | |
970 | ||
971 | bfd_h_put_32 (abfd, size, buffer); | |
972 | if (bfd_write ((PTR) buffer, 1, 4, abfd) != 4) | |
973 | return false; | |
974 | } | |
9783e04a | 975 | |
bfe8224f ILT |
976 | /* Make sure the .debug section was created to be the correct size. |
977 | We should create it ourselves on the fly, but we don't because | |
978 | BFD won't let us write to any section until we know how large all | |
979 | the sections are. We could still do it by making another pass | |
980 | over the symbols. FIXME. */ | |
9783e04a DM |
981 | BFD_ASSERT (debug_string_size == 0 |
982 | || (debug_string_section != (asection *) NULL | |
983 | && (BFD_ALIGN (debug_string_size, | |
984 | 1 << debug_string_section->alignment_power) | |
985 | == bfd_section_size (abfd, debug_string_section)))); | |
bfe8224f ILT |
986 | |
987 | return true; | |
075caafd ILT |
988 | } |
989 | ||
9783e04a | 990 | boolean |
25057836 JL |
991 | coff_write_linenumbers (abfd) |
992 | bfd *abfd; | |
075caafd ILT |
993 | { |
994 | asection *s; | |
995 | bfd_size_type linesz; | |
996 | PTR buff; | |
997 | ||
998 | linesz = bfd_coff_linesz (abfd); | |
999 | buff = bfd_alloc (abfd, linesz); | |
9783e04a DM |
1000 | if (!buff) |
1001 | { | |
d1ad85a6 | 1002 | bfd_set_error (bfd_error_no_memory); |
25057836 | 1003 | return false; |
9783e04a | 1004 | } |
075caafd ILT |
1005 | for (s = abfd->sections; s != (asection *) NULL; s = s->next) { |
1006 | if (s->lineno_count) { | |
1007 | asymbol **q = abfd->outsymbols; | |
1008 | bfd_seek(abfd, s->line_filepos, SEEK_SET); | |
1009 | /* Find all the linenumbers in this section */ | |
1010 | while (*q) { | |
1011 | asymbol *p = *q; | |
27f524a3 ILT |
1012 | if (p->section->output_section == s) { |
1013 | alent *l = | |
1014 | BFD_SEND(bfd_asymbol_bfd(p), _get_lineno, (bfd_asymbol_bfd(p), p)); | |
1015 | if (l) { | |
1016 | /* Found a linenumber entry, output */ | |
1017 | struct internal_lineno out; | |
1018 | memset( (PTR)&out, 0, sizeof(out)); | |
1019 | out.l_lnno = 0; | |
075caafd ILT |
1020 | out.l_addr.l_symndx = l->u.offset; |
1021 | bfd_coff_swap_lineno_out(abfd, &out, buff); | |
1022 | bfd_write(buff, 1, linesz, abfd); | |
1023 | l++; | |
27f524a3 ILT |
1024 | while (l->line_number) { |
1025 | out.l_lnno = l->line_number; | |
1026 | out.l_addr.l_symndx = l->u.offset; | |
1027 | bfd_coff_swap_lineno_out(abfd, &out, buff); | |
1028 | bfd_write(buff, 1, linesz, abfd); | |
1029 | l++; | |
1030 | } | |
075caafd ILT |
1031 | } |
1032 | } | |
1033 | q++; | |
1034 | } | |
1035 | } | |
1036 | } | |
1037 | bfd_release (abfd, buff); | |
9783e04a | 1038 | return true; |
075caafd ILT |
1039 | } |
1040 | ||
330595d0 | 1041 | /*ARGSUSED*/ |
075caafd | 1042 | alent * |
25057836 JL |
1043 | coff_get_lineno (ignore_abfd, symbol) |
1044 | bfd *ignore_abfd; | |
1045 | asymbol *symbol; | |
075caafd ILT |
1046 | { |
1047 | return coffsymbol(symbol)->lineno; | |
1048 | } | |
1049 | ||
1050 | asymbol * | |
1051 | coff_section_symbol (abfd, name) | |
1052 | bfd *abfd; | |
1053 | char *name; | |
1054 | { | |
1055 | asection *sec = bfd_make_section_old_way (abfd, name); | |
1056 | asymbol *sym; | |
1057 | combined_entry_type *csym; | |
1058 | ||
1059 | sym = sec->symbol; | |
4c3721d5 | 1060 | csym = coff_symbol_from (abfd, sym)->native; |
075caafd ILT |
1061 | /* Make sure back-end COFF stuff is there. */ |
1062 | if (csym == 0) | |
1063 | { | |
1064 | struct foo { | |
1065 | coff_symbol_type sym; | |
1066 | /* @@FIXME This shouldn't use a fixed size!! */ | |
1067 | combined_entry_type e[10]; | |
1068 | }; | |
1069 | struct foo *f; | |
1070 | f = (struct foo *) bfd_alloc_by_size_t (abfd, sizeof (*f)); | |
9783e04a DM |
1071 | if (!f) |
1072 | { | |
d1ad85a6 | 1073 | bfd_set_error (bfd_error_no_error); |
9783e04a DM |
1074 | return NULL; |
1075 | } | |
075caafd ILT |
1076 | memset ((char *) f, 0, sizeof (*f)); |
1077 | coff_symbol_from (abfd, sym)->native = csym = f->e; | |
1078 | } | |
1079 | csym[0].u.syment.n_sclass = C_STAT; | |
1080 | csym[0].u.syment.n_numaux = 1; | |
1081 | /* SF_SET_STATICS (sym); @@ ??? */ | |
4c3721d5 ILT |
1082 | csym[1].u.auxent.x_scn.x_scnlen = sec->_raw_size; |
1083 | csym[1].u.auxent.x_scn.x_nreloc = sec->reloc_count; | |
1084 | csym[1].u.auxent.x_scn.x_nlinno = sec->lineno_count; | |
1085 | ||
1086 | if (sec->output_section == NULL) | |
075caafd | 1087 | { |
4c3721d5 ILT |
1088 | sec->output_section = sec; |
1089 | sec->output_offset = 0; | |
075caafd | 1090 | } |
4c3721d5 | 1091 | |
075caafd ILT |
1092 | return sym; |
1093 | } | |
1094 | ||
1095 | /* This function transforms the offsets into the symbol table into | |
1096 | pointers to syments. */ | |
1097 | ||
1098 | static void | |
25057836 JL |
1099 | coff_pointerize_aux (abfd, table_base, type, class, auxent) |
1100 | bfd *abfd; | |
1101 | combined_entry_type *table_base; | |
1102 | int type; | |
1103 | int class; | |
1104 | combined_entry_type *auxent; | |
075caafd ILT |
1105 | { |
1106 | /* Don't bother if this is a file or a section */ | |
1107 | if (class == C_STAT && type == T_NULL) return; | |
1108 | if (class == C_FILE) return; | |
1109 | ||
1110 | /* Otherwise patch up */ | |
1111 | #define N_TMASK coff_data (abfd)->local_n_tmask | |
1112 | #define N_BTSHFT coff_data (abfd)->local_n_btshft | |
1113 | if (ISFCN(type) || ISTAG(class) || class == C_BLOCK) { | |
1114 | auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p = table_base + | |
1115 | auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l; | |
1116 | auxent->fix_end = 1; | |
1117 | } | |
1118 | /* A negative tagndx is meaningless, but the SCO 3.2v4 cc can | |
1119 | generate one, so we must be careful to ignore it. */ | |
1120 | if (auxent->u.auxent.x_sym.x_tagndx.l > 0) { | |
1121 | auxent->u.auxent.x_sym.x_tagndx.p = | |
1122 | table_base + auxent->u.auxent.x_sym.x_tagndx.l; | |
1123 | auxent->fix_tag = 1; | |
1124 | } | |
1125 | } | |
1126 | ||
1127 | static char * | |
25057836 JL |
1128 | build_string_table (abfd) |
1129 | bfd *abfd; | |
075caafd ILT |
1130 | { |
1131 | char string_table_size_buffer[4]; | |
1132 | unsigned int string_table_size; | |
1133 | char *string_table; | |
1134 | ||
1135 | /* At this point we should be "seek"'d to the end of the | |
1136 | symbols === the symbol table size. */ | |
1137 | if (bfd_read((char *) string_table_size_buffer, | |
1138 | sizeof(string_table_size_buffer), | |
25057836 | 1139 | 1, abfd) != sizeof(string_table_size)) |
075caafd | 1140 | return (NULL); |
075caafd ILT |
1141 | |
1142 | string_table_size = bfd_h_get_32(abfd, (bfd_byte *) string_table_size_buffer); | |
1143 | ||
1144 | if ((string_table = (PTR) bfd_alloc(abfd, string_table_size -= 4)) == NULL) { | |
d1ad85a6 | 1145 | bfd_set_error (bfd_error_no_memory); |
075caafd ILT |
1146 | return (NULL); |
1147 | } /* on mallocation error */ | |
25057836 | 1148 | if (bfd_read(string_table, string_table_size, 1, abfd) != string_table_size) |
075caafd | 1149 | return (NULL); |
075caafd ILT |
1150 | return string_table; |
1151 | } | |
1152 | ||
1153 | /* Allocate space for the ".debug" section, and read it. | |
1154 | We did not read the debug section until now, because | |
1155 | we didn't want to go to the trouble until someone needed it. */ | |
1156 | ||
1157 | static char * | |
25057836 JL |
1158 | build_debug_section (abfd) |
1159 | bfd *abfd; | |
075caafd ILT |
1160 | { |
1161 | char *debug_section; | |
1162 | long position; | |
1163 | ||
1164 | asection *sect = bfd_get_section_by_name (abfd, ".debug"); | |
1165 | ||
1166 | if (!sect) { | |
d1ad85a6 | 1167 | bfd_set_error (bfd_error_no_debug_section); |
075caafd ILT |
1168 | return NULL; |
1169 | } | |
1170 | ||
1171 | debug_section = (PTR) bfd_alloc (abfd, | |
1172 | bfd_get_section_size_before_reloc (sect)); | |
1173 | if (debug_section == NULL) { | |
d1ad85a6 | 1174 | bfd_set_error (bfd_error_no_memory); |
075caafd ILT |
1175 | return NULL; |
1176 | } | |
1177 | ||
1178 | /* Seek to the beginning of the `.debug' section and read it. | |
1179 | Save the current position first; it is needed by our caller. | |
1180 | Then read debug section and reset the file pointer. */ | |
1181 | ||
1182 | position = bfd_tell (abfd); | |
1183 | bfd_seek (abfd, sect->filepos, SEEK_SET); | |
1184 | if (bfd_read (debug_section, | |
1185 | bfd_get_section_size_before_reloc (sect), 1, abfd) | |
25057836 | 1186 | != bfd_get_section_size_before_reloc(sect)) |
075caafd | 1187 | return NULL; |
075caafd ILT |
1188 | bfd_seek (abfd, position, SEEK_SET); |
1189 | return debug_section; | |
1190 | } | |
1191 | ||
1192 | ||
1193 | /* Return a pointer to a malloc'd copy of 'name'. 'name' may not be | |
1194 | \0-terminated, but will not exceed 'maxlen' characters. The copy *will* | |
1195 | be \0-terminated. */ | |
1196 | static char * | |
25057836 JL |
1197 | copy_name (abfd, name, maxlen) |
1198 | bfd *abfd; | |
1199 | char *name; | |
1200 | int maxlen; | |
075caafd ILT |
1201 | { |
1202 | int len; | |
1203 | char *newname; | |
1204 | ||
1205 | for (len = 0; len < maxlen; ++len) { | |
1206 | if (name[len] == '\0') { | |
1207 | break; | |
1208 | } | |
1209 | } | |
1210 | ||
1211 | if ((newname = (PTR) bfd_alloc(abfd, len+1)) == NULL) { | |
d1ad85a6 | 1212 | bfd_set_error (bfd_error_no_memory); |
075caafd ILT |
1213 | return (NULL); |
1214 | } | |
1215 | strncpy(newname, name, len); | |
1216 | newname[len] = '\0'; | |
1217 | return newname; | |
1218 | } | |
1219 | ||
1220 | /* Read a symbol table into freshly bfd_allocated memory, swap it, and | |
1221 | knit the symbol names into a normalized form. By normalized here I | |
1222 | mean that all symbols have an n_offset pointer that points to a null- | |
1223 | terminated string. */ | |
1224 | ||
1225 | combined_entry_type * | |
25057836 JL |
1226 | coff_get_normalized_symtab (abfd) |
1227 | bfd *abfd; | |
075caafd ILT |
1228 | { |
1229 | combined_entry_type *internal; | |
1230 | combined_entry_type *internal_ptr; | |
1231 | combined_entry_type *symbol_ptr; | |
1232 | combined_entry_type *internal_end; | |
1233 | bfd_size_type symesz; | |
1234 | PTR raw; | |
1235 | char *raw_src; | |
1236 | char *raw_end; | |
1237 | char *string_table = NULL; | |
1238 | char *debug_section = NULL; | |
1239 | unsigned long size; | |
1240 | ||
1241 | unsigned int raw_size; | |
1242 | if (obj_raw_syments(abfd) != (combined_entry_type *)NULL) { | |
1243 | return obj_raw_syments(abfd); | |
1244 | } | |
1245 | if ((size = bfd_get_symcount(abfd) * sizeof(combined_entry_type)) == 0) { | |
d1ad85a6 | 1246 | bfd_set_error (bfd_error_no_symbols); |
075caafd ILT |
1247 | return (NULL); |
1248 | } | |
1249 | ||
1250 | internal = (combined_entry_type *)bfd_alloc(abfd, size); | |
9783e04a DM |
1251 | if (!internal) |
1252 | { | |
d1ad85a6 | 1253 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
1254 | return NULL; |
1255 | } | |
075caafd ILT |
1256 | internal_end = internal + bfd_get_symcount(abfd); |
1257 | ||
1258 | symesz = bfd_coff_symesz (abfd); | |
1259 | raw_size = bfd_get_symcount(abfd) * symesz; | |
1260 | raw = bfd_alloc(abfd,raw_size); | |
9783e04a DM |
1261 | if (!raw) |
1262 | { | |
d1ad85a6 | 1263 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
1264 | return NULL; |
1265 | } | |
075caafd ILT |
1266 | |
1267 | if (bfd_seek(abfd, obj_sym_filepos(abfd), SEEK_SET) == -1 | |
25057836 | 1268 | || bfd_read(raw, raw_size, 1, abfd) != raw_size) |
075caafd | 1269 | return (NULL); |
075caafd ILT |
1270 | /* mark the end of the symbols */ |
1271 | raw_end = (char *) raw + bfd_get_symcount(abfd) * symesz; | |
1272 | /* | |
1273 | FIXME SOMEDAY. A string table size of zero is very weird, but | |
1274 | probably possible. If one shows up, it will probably kill us. | |
1275 | */ | |
1276 | ||
1277 | /* Swap all the raw entries */ | |
1278 | for (raw_src = (char *) raw, internal_ptr = internal; | |
1279 | raw_src < raw_end; | |
1280 | raw_src += symesz, internal_ptr++) { | |
1281 | ||
1282 | unsigned int i; | |
1283 | bfd_coff_swap_sym_in(abfd, (PTR)raw_src, (PTR)&internal_ptr->u.syment); | |
9783e04a | 1284 | internal_ptr->fix_value = 0; |
075caafd ILT |
1285 | internal_ptr->fix_tag = 0; |
1286 | internal_ptr->fix_end = 0; | |
9783e04a | 1287 | internal_ptr->fix_scnlen = 0; |
075caafd | 1288 | symbol_ptr = internal_ptr; |
85fe7cff | 1289 | |
075caafd ILT |
1290 | for (i = 0; |
1291 | i < symbol_ptr->u.syment.n_numaux; | |
1292 | i++) | |
1293 | { | |
1294 | internal_ptr++; | |
1295 | raw_src += symesz; | |
1296 | ||
9783e04a | 1297 | internal_ptr->fix_value = 0; |
075caafd ILT |
1298 | internal_ptr->fix_tag = 0; |
1299 | internal_ptr->fix_end = 0; | |
9783e04a | 1300 | internal_ptr->fix_scnlen = 0; |
075caafd ILT |
1301 | bfd_coff_swap_aux_in(abfd, (PTR) raw_src, |
1302 | symbol_ptr->u.syment.n_type, | |
1303 | symbol_ptr->u.syment.n_sclass, | |
330595d0 | 1304 | i, symbol_ptr->u.syment.n_numaux, |
075caafd ILT |
1305 | &(internal_ptr->u.auxent)); |
1306 | /* Remember that bal entries arn't pointerized */ | |
1307 | if (i != 1 || symbol_ptr->u.syment.n_sclass != C_LEAFPROC) | |
1308 | { | |
1309 | ||
1310 | coff_pointerize_aux(abfd, | |
1311 | internal, | |
1312 | symbol_ptr->u.syment.n_type, | |
1313 | symbol_ptr->u.syment.n_sclass, | |
1314 | internal_ptr); | |
1315 | } | |
1316 | ||
1317 | } | |
1318 | } | |
1319 | ||
1320 | /* Free all the raw stuff */ | |
1321 | bfd_release(abfd, raw); | |
1322 | ||
1323 | for (internal_ptr = internal; internal_ptr < internal_end; | |
1324 | internal_ptr ++) | |
1325 | { | |
1326 | if (internal_ptr->u.syment.n_sclass == C_FILE) { | |
1327 | /* make a file symbol point to the name in the auxent, since | |
1328 | the text ".file" is redundant */ | |
1329 | if ((internal_ptr+1)->u.auxent.x_file.x_n.x_zeroes == 0) { | |
1330 | /* the filename is a long one, point into the string table */ | |
1331 | if (string_table == NULL) { | |
1332 | string_table = build_string_table(abfd); | |
1333 | } | |
1334 | ||
1335 | internal_ptr->u.syment._n._n_n._n_offset = | |
e4b6b3e7 | 1336 | (long) (string_table - 4 + |
075caafd ILT |
1337 | (internal_ptr+1)->u.auxent.x_file.x_n.x_offset); |
1338 | } | |
1339 | else { | |
1340 | /* ordinary short filename, put into memory anyway */ | |
e4b6b3e7 | 1341 | internal_ptr->u.syment._n._n_n._n_offset = (long) |
075caafd ILT |
1342 | copy_name(abfd, (internal_ptr+1)->u.auxent.x_file.x_fname, |
1343 | FILNMLEN); | |
1344 | } | |
1345 | } | |
1346 | else { | |
1347 | if (internal_ptr->u.syment._n._n_n._n_zeroes != 0) { | |
1348 | /* This is a "short" name. Make it long. */ | |
1349 | unsigned long i = 0; | |
1350 | char *newstring = NULL; | |
1351 | ||
1352 | /* find the length of this string without walking into memory | |
1353 | that isn't ours. */ | |
1354 | for (i = 0; i < 8; ++i) { | |
1355 | if (internal_ptr->u.syment._n._n_name[i] == '\0') { | |
1356 | break; | |
1357 | } /* if end of string */ | |
1358 | } /* possible lengths of this string. */ | |
1359 | ||
1360 | if ((newstring = (PTR) bfd_alloc(abfd, ++i)) == NULL) { | |
d1ad85a6 | 1361 | bfd_set_error (bfd_error_no_memory); |
075caafd ILT |
1362 | return (NULL); |
1363 | } /* on error */ | |
1364 | memset(newstring, 0, i); | |
1365 | strncpy(newstring, internal_ptr->u.syment._n._n_name, i-1); | |
e4b6b3e7 | 1366 | internal_ptr->u.syment._n._n_n._n_offset = (long int) newstring; |
075caafd ILT |
1367 | internal_ptr->u.syment._n._n_n._n_zeroes = 0; |
1368 | } | |
9783e04a DM |
1369 | else if (internal_ptr->u.syment._n._n_n._n_offset == 0) |
1370 | internal_ptr->u.syment._n._n_n._n_offset = (long int) ""; | |
075caafd ILT |
1371 | else if (!bfd_coff_symname_in_debug(abfd, &internal_ptr->u.syment)) { |
1372 | /* Long name already. Point symbol at the string in the table. */ | |
1373 | if (string_table == NULL) { | |
1374 | string_table = build_string_table(abfd); | |
1375 | } | |
e4b6b3e7 | 1376 | internal_ptr->u.syment._n._n_n._n_offset = (long int) |
075caafd ILT |
1377 | (string_table - 4 + internal_ptr->u.syment._n._n_n._n_offset); |
1378 | } | |
1379 | else { | |
1380 | /* Long name in debug section. Very similar. */ | |
1381 | if (debug_section == NULL) { | |
1382 | debug_section = build_debug_section(abfd); | |
1383 | } | |
e4b6b3e7 | 1384 | internal_ptr->u.syment._n._n_n._n_offset = (long int) |
075caafd ILT |
1385 | (debug_section + internal_ptr->u.syment._n._n_n._n_offset); |
1386 | } | |
1387 | } | |
1388 | internal_ptr += internal_ptr->u.syment.n_numaux; | |
1389 | } | |
1390 | ||
1391 | obj_raw_syments(abfd) = internal; | |
85fe7cff | 1392 | obj_raw_syment_count(abfd) = internal_ptr - internal; |
075caafd ILT |
1393 | |
1394 | return (internal); | |
1395 | } /* coff_get_normalized_symtab() */ | |
1396 | ||
326e32d7 | 1397 | long |
25057836 JL |
1398 | coff_get_reloc_upper_bound (abfd, asect) |
1399 | bfd *abfd; | |
1400 | sec_ptr asect; | |
075caafd ILT |
1401 | { |
1402 | if (bfd_get_format(abfd) != bfd_object) { | |
d1ad85a6 | 1403 | bfd_set_error (bfd_error_invalid_operation); |
326e32d7 | 1404 | return -1; |
075caafd ILT |
1405 | } |
1406 | return (asect->reloc_count + 1) * sizeof(arelent *); | |
1407 | } | |
1408 | ||
1409 | asymbol * | |
25057836 JL |
1410 | coff_make_empty_symbol (abfd) |
1411 | bfd *abfd; | |
075caafd ILT |
1412 | { |
1413 | coff_symbol_type *new = (coff_symbol_type *) bfd_alloc(abfd, sizeof(coff_symbol_type)); | |
1414 | if (new == NULL) { | |
d1ad85a6 | 1415 | bfd_set_error (bfd_error_no_memory); |
075caafd ILT |
1416 | return (NULL); |
1417 | } /* on error */ | |
9783e04a | 1418 | memset (new, 0, sizeof *new); |
075caafd ILT |
1419 | new->symbol.section = 0; |
1420 | new->native = 0; | |
1421 | new->lineno = (alent *) NULL; | |
1422 | new->done_lineno = false; | |
1423 | new->symbol.the_bfd = abfd; | |
1424 | return &new->symbol; | |
1425 | } | |
1426 | ||
2d1e6c9c KR |
1427 | /* Make a debugging symbol. */ |
1428 | ||
075caafd | 1429 | asymbol * |
2d1e6c9c KR |
1430 | coff_bfd_make_debug_symbol (abfd, ptr, sz) |
1431 | bfd *abfd; | |
1432 | PTR ptr; | |
1433 | unsigned long sz; | |
075caafd ILT |
1434 | { |
1435 | coff_symbol_type *new = (coff_symbol_type *) bfd_alloc(abfd, sizeof(coff_symbol_type)); | |
1436 | if (new == NULL) { | |
d1ad85a6 | 1437 | bfd_set_error (bfd_error_no_memory); |
075caafd ILT |
1438 | return (NULL); |
1439 | } /* on error */ | |
1440 | /* @@ This shouldn't be using a constant multiplier. */ | |
1441 | new->native = (combined_entry_type *) bfd_zalloc (abfd, sizeof (combined_entry_type) * 10); | |
9783e04a DM |
1442 | if (!new->native) |
1443 | { | |
d1ad85a6 | 1444 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
1445 | return (NULL); |
1446 | } /* on error */ | |
075caafd ILT |
1447 | new->symbol.section = &bfd_debug_section; |
1448 | new->lineno = (alent *) NULL; | |
1449 | new->done_lineno = false; | |
1450 | new->symbol.the_bfd = abfd; | |
1451 | return &new->symbol; | |
1452 | } | |
1453 | ||
330595d0 | 1454 | /*ARGSUSED*/ |
2d1e6c9c KR |
1455 | void |
1456 | coff_get_symbol_info (abfd, symbol, ret) | |
1457 | bfd *abfd; | |
1458 | asymbol *symbol; | |
1459 | symbol_info *ret; | |
1460 | { | |
1461 | bfd_symbol_info (symbol, ret); | |
1462 | } | |
1463 | ||
e61cfdf8 ILT |
1464 | /* Print out information about COFF symbol. */ |
1465 | ||
075caafd | 1466 | void |
e61cfdf8 ILT |
1467 | coff_print_symbol (abfd, filep, symbol, how) |
1468 | bfd *abfd; | |
1469 | PTR filep; | |
1470 | asymbol *symbol; | |
1471 | bfd_print_symbol_type how; | |
075caafd | 1472 | { |
e61cfdf8 ILT |
1473 | FILE *file = (FILE *) filep; |
1474 | ||
1475 | switch (how) | |
1476 | { | |
075caafd | 1477 | case bfd_print_symbol_name: |
e61cfdf8 | 1478 | fprintf (file, "%s", symbol->name); |
075caafd | 1479 | break; |
e61cfdf8 | 1480 | |
075caafd | 1481 | case bfd_print_symbol_more: |
e61cfdf8 ILT |
1482 | fprintf (file, "coff %s %s", |
1483 | coffsymbol(symbol)->native ? "n" : "g", | |
1484 | coffsymbol(symbol)->lineno ? "l" : " "); | |
075caafd | 1485 | break; |
075caafd | 1486 | |
e61cfdf8 | 1487 | case bfd_print_symbol_all: |
075caafd | 1488 | if (coffsymbol(symbol)->native) |
075caafd | 1489 | { |
e61cfdf8 ILT |
1490 | unsigned int aux; |
1491 | combined_entry_type *combined = coffsymbol (symbol)->native; | |
1492 | combined_entry_type *root = obj_raw_syments (abfd); | |
1493 | struct lineno_cache_entry *l = coffsymbol(symbol)->lineno; | |
1494 | ||
1495 | fprintf (file,"[%3d]", combined - root); | |
1496 | ||
1497 | fprintf (file, | |
4c3721d5 | 1498 | "(sc %2d)(fl 0x%02x)(ty %3x)(sc %3d) (nx %d) 0x%08lx %s", |
e61cfdf8 ILT |
1499 | combined->u.syment.n_scnum, |
1500 | combined->u.syment.n_flags, | |
1501 | combined->u.syment.n_type, | |
1502 | combined->u.syment.n_sclass, | |
1503 | combined->u.syment.n_numaux, | |
4c3721d5 | 1504 | (unsigned long) combined->u.syment.n_value, |
e61cfdf8 ILT |
1505 | symbol->name); |
1506 | ||
1507 | for (aux = 0; aux < combined->u.syment.n_numaux; aux++) | |
1508 | { | |
1509 | combined_entry_type *auxp = combined + aux + 1; | |
1510 | long tagndx; | |
1511 | ||
1512 | if (auxp->fix_tag) | |
1513 | tagndx = auxp->u.auxent.x_sym.x_tagndx.p - root; | |
1514 | else | |
1515 | tagndx = auxp->u.auxent.x_sym.x_tagndx.l; | |
1516 | ||
1517 | fprintf (file, "\n"); | |
1518 | switch (combined->u.syment.n_sclass) | |
1519 | { | |
1520 | case C_FILE: | |
1521 | fprintf (file, "File "); | |
1522 | break; | |
1523 | default: | |
1524 | ||
4c3721d5 | 1525 | fprintf (file, "AUX lnno %d size 0x%x tagndx %ld", |
e61cfdf8 ILT |
1526 | auxp->u.auxent.x_sym.x_misc.x_lnsz.x_lnno, |
1527 | auxp->u.auxent.x_sym.x_misc.x_lnsz.x_size, | |
1528 | tagndx); | |
1529 | break; | |
1530 | } | |
075caafd | 1531 | } |
075caafd | 1532 | |
e61cfdf8 ILT |
1533 | if (l) |
1534 | { | |
e4b6b3e7 | 1535 | fprintf (file, "\n%s :", l->u.sym->name); |
e61cfdf8 ILT |
1536 | l++; |
1537 | while (l->line_number) | |
1538 | { | |
4c3721d5 ILT |
1539 | fprintf (file, "\n%4d : 0x%lx", |
1540 | l->line_number, | |
1541 | ((unsigned long) | |
1542 | (l->u.offset + symbol->section->vma))); | |
e61cfdf8 ILT |
1543 | l++; |
1544 | } | |
1545 | } | |
1546 | } | |
1547 | else | |
075caafd | 1548 | { |
e61cfdf8 ILT |
1549 | bfd_print_symbol_vandf ((PTR) file, symbol); |
1550 | fprintf (file, " %-5s %s %s %s", | |
1551 | symbol->section->name, | |
1552 | coffsymbol(symbol)->native ? "n" : "g", | |
1553 | coffsymbol(symbol)->lineno ? "l" : " ", | |
1554 | symbol->name); | |
075caafd | 1555 | } |
075caafd ILT |
1556 | } |
1557 | } | |
1558 | ||
1559 | /* Provided a BFD, a section and an offset into the section, calculate | |
1560 | and return the name of the source file and the line nearest to the | |
1561 | wanted location. */ | |
1562 | ||
330595d0 | 1563 | /*ARGSUSED*/ |
075caafd | 1564 | boolean |
25057836 JL |
1565 | coff_find_nearest_line (abfd, section, ignore_symbols, offset, filename_ptr, |
1566 | functionname_ptr, line_ptr) | |
1567 | bfd *abfd; | |
1568 | asection *section; | |
1569 | asymbol **ignore_symbols; | |
1570 | bfd_vma offset; | |
1571 | CONST char **filename_ptr; | |
1572 | CONST char **functionname_ptr; | |
1573 | unsigned int *line_ptr; | |
075caafd ILT |
1574 | { |
1575 | static bfd *cache_abfd; | |
1576 | static asection *cache_section; | |
1577 | static bfd_vma cache_offset; | |
1578 | static unsigned int cache_i; | |
85fe7cff PB |
1579 | static CONST char *cache_function; |
1580 | static unsigned int line_base = 0; | |
075caafd ILT |
1581 | |
1582 | unsigned int i = 0; | |
1583 | coff_data_type *cof = coff_data(abfd); | |
1584 | /* Run through the raw syments if available */ | |
1585 | combined_entry_type *p; | |
1586 | alent *l; | |
075caafd ILT |
1587 | |
1588 | ||
1589 | *filename_ptr = 0; | |
1590 | *functionname_ptr = 0; | |
1591 | *line_ptr = 0; | |
1592 | ||
1593 | /* Don't try and find line numbers in a non coff file */ | |
1594 | if (abfd->xvec->flavour != bfd_target_coff_flavour) | |
1595 | return false; | |
1596 | ||
1597 | if (cof == NULL) | |
1598 | return false; | |
1599 | ||
1600 | p = cof->raw_syments; | |
1601 | ||
1602 | for (i = 0; i < cof->raw_syment_count; i++) { | |
1603 | if (p->u.syment.n_sclass == C_FILE) { | |
1604 | /* File name has been moved into symbol */ | |
1605 | *filename_ptr = (char *) p->u.syment._n._n_n._n_offset; | |
1606 | break; | |
1607 | } | |
1608 | p += 1 + p->u.syment.n_numaux; | |
1609 | } | |
1610 | /* Now wander though the raw linenumbers of the section */ | |
1611 | /* | |
1612 | If this is the same BFD as we were previously called with and this is | |
1613 | the same section, and the offset we want is further down then we can | |
1614 | prime the lookup loop | |
1615 | */ | |
1616 | if (abfd == cache_abfd && | |
1617 | section == cache_section && | |
1618 | offset >= cache_offset) { | |
1619 | i = cache_i; | |
85fe7cff | 1620 | *functionname_ptr = cache_function; |
075caafd ILT |
1621 | } |
1622 | else { | |
1623 | i = 0; | |
075caafd | 1624 | } |
85fe7cff | 1625 | l = §ion->lineno[i]; |
075caafd ILT |
1626 | |
1627 | for (; i < section->lineno_count; i++) { | |
1628 | if (l->line_number == 0) { | |
1629 | /* Get the symbol this line number points at */ | |
1630 | coff_symbol_type *coff = (coff_symbol_type *) (l->u.sym); | |
85fe7cff PB |
1631 | if (coff->symbol.value > offset) |
1632 | break; | |
075caafd ILT |
1633 | *functionname_ptr = coff->symbol.name; |
1634 | if (coff->native) { | |
1635 | combined_entry_type *s = coff->native; | |
1636 | s = s + 1 + s->u.syment.n_numaux; | |
1637 | /* | |
1638 | S should now point to the .bf of the function | |
1639 | */ | |
1640 | if (s->u.syment.n_numaux) { | |
1641 | /* | |
1642 | The linenumber is stored in the auxent | |
1643 | */ | |
1644 | union internal_auxent *a = &((s + 1)->u.auxent); | |
1645 | line_base = a->x_sym.x_misc.x_lnsz.x_lnno; | |
85fe7cff | 1646 | *line_ptr = line_base; |
075caafd ILT |
1647 | } |
1648 | } | |
1649 | } | |
1650 | else { | |
1651 | if (l->u.offset > offset) | |
1652 | break; | |
85fe7cff | 1653 | *line_ptr = l->line_number + line_base - 1; |
075caafd ILT |
1654 | } |
1655 | l++; | |
1656 | } | |
1657 | ||
1658 | cache_abfd = abfd; | |
1659 | cache_section = section; | |
1660 | cache_offset = offset; | |
1661 | cache_i = i; | |
85fe7cff | 1662 | cache_function = *functionname_ptr; |
075caafd ILT |
1663 | |
1664 | return true; | |
1665 | } | |
1666 | ||
1667 | int | |
25057836 JL |
1668 | coff_sizeof_headers (abfd, reloc) |
1669 | bfd *abfd; | |
1670 | boolean reloc; | |
075caafd ILT |
1671 | { |
1672 | size_t size; | |
1673 | ||
1674 | if (reloc == false) { | |
1675 | size = bfd_coff_filhsz (abfd) + bfd_coff_aoutsz (abfd); | |
1676 | } | |
1677 | else { | |
1678 | size = bfd_coff_filhsz (abfd); | |
1679 | } | |
1680 | ||
1681 | size += abfd->section_count * bfd_coff_scnhsz (abfd); | |
1682 | return size; | |
1683 | } |