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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. */ | |
c16313f0 | 108 | if ((return_section->flags & SEC_COFF_SHARED_LIBRARY) != 0) |
2d1e6c9c KR |
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 | ||
2f3508ad | 122 | static const bfd_target * |
25057836 JL |
123 | coff_real_object_p (abfd, nscns, internal_f, internal_a) |
124 | bfd *abfd; | |
125 | unsigned nscns; | |
126 | struct internal_filehdr *internal_f; | |
127 | struct internal_aouthdr *internal_a; | |
075caafd ILT |
128 | { |
129 | PTR tdata; | |
130 | size_t readsize; /* length of file_info */ | |
131 | unsigned int scnhsz; | |
132 | char *external_sections; | |
133 | ||
134 | /* Build a play area */ | |
27f524a3 | 135 | tdata = bfd_coff_mkobject_hook (abfd, (PTR) internal_f, (PTR) internal_a); |
075caafd ILT |
136 | if (tdata == NULL) |
137 | return 0; | |
138 | ||
139 | scnhsz = bfd_coff_scnhsz (abfd); | |
140 | readsize = nscns * scnhsz; | |
141 | external_sections = (char *)bfd_alloc(abfd, readsize); | |
9783e04a DM |
142 | if (!external_sections) |
143 | { | |
d1ad85a6 | 144 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
145 | goto fail; |
146 | } | |
075caafd ILT |
147 | |
148 | if (bfd_read((PTR)external_sections, 1, readsize, abfd) != readsize) { | |
149 | goto fail; | |
150 | } | |
151 | ||
152 | /* Now copy data as required; construct all asections etc */ | |
153 | if (nscns != 0) { | |
154 | unsigned int i; | |
155 | for (i = 0; i < nscns; i++) { | |
156 | struct internal_scnhdr tmp; | |
157 | bfd_coff_swap_scnhdr_in(abfd, (PTR) (external_sections + i * scnhsz), | |
158 | (PTR) &tmp); | |
159 | make_a_section_from_file(abfd,&tmp, i+1); | |
160 | } | |
161 | } | |
162 | ||
163 | /* make_abs_section(abfd);*/ | |
164 | ||
165 | if (bfd_coff_set_arch_mach_hook (abfd, (PTR) internal_f) == false) | |
166 | goto fail; | |
167 | ||
168 | if (!(internal_f->f_flags & F_RELFLG)) | |
169 | abfd->flags |= HAS_RELOC; | |
170 | if ((internal_f->f_flags & F_EXEC)) | |
171 | abfd->flags |= EXEC_P; | |
172 | if (!(internal_f->f_flags & F_LNNO)) | |
173 | abfd->flags |= HAS_LINENO; | |
174 | if (!(internal_f->f_flags & F_LSYMS)) | |
175 | abfd->flags |= HAS_LOCALS; | |
176 | ||
2f3508ad ILT |
177 | /* FIXME: How can we set D_PAGED correctly? */ |
178 | if ((internal_f->f_flags & F_EXEC) != 0) | |
179 | abfd->flags |= D_PAGED; | |
075caafd ILT |
180 | |
181 | bfd_get_symcount(abfd) = internal_f->f_nsyms; | |
182 | if (internal_f->f_nsyms) | |
183 | abfd->flags |= HAS_SYMS; | |
184 | ||
27f524a3 ILT |
185 | if (internal_a != (struct internal_aouthdr *) NULL) |
186 | bfd_get_start_address (abfd) = internal_a->entry; | |
187 | else | |
188 | bfd_get_start_address (abfd) = 0; | |
075caafd ILT |
189 | |
190 | return abfd->xvec; | |
191 | fail: | |
192 | bfd_release(abfd, tdata); | |
2f3508ad | 193 | return (const bfd_target *)NULL; |
075caafd ILT |
194 | } |
195 | ||
d1ad85a6 | 196 | /* Turn a COFF file into a BFD, but fail with bfd_error_wrong_format if it is |
075caafd ILT |
197 | not a COFF file. This is also used by ECOFF. */ |
198 | ||
2f3508ad | 199 | const bfd_target * |
25057836 JL |
200 | coff_object_p (abfd) |
201 | bfd *abfd; | |
075caafd ILT |
202 | { |
203 | unsigned int filhsz; | |
204 | unsigned int aoutsz; | |
205 | int nscns; | |
206 | PTR filehdr; | |
207 | struct internal_filehdr internal_f; | |
208 | struct internal_aouthdr internal_a; | |
209 | ||
075caafd ILT |
210 | /* figure out how much to read */ |
211 | filhsz = bfd_coff_filhsz (abfd); | |
212 | aoutsz = bfd_coff_aoutsz (abfd); | |
213 | ||
214 | filehdr = bfd_alloc (abfd, filhsz); | |
215 | if (filehdr == NULL) | |
216 | return 0; | |
217 | if (bfd_read(filehdr, 1, filhsz, abfd) != filhsz) | |
25057836 JL |
218 | { |
219 | if (bfd_get_error () != bfd_error_system_call) | |
220 | bfd_set_error (bfd_error_wrong_format); | |
221 | return 0; | |
222 | } | |
075caafd ILT |
223 | bfd_coff_swap_filehdr_in(abfd, filehdr, &internal_f); |
224 | bfd_release (abfd, filehdr); | |
225 | ||
226 | if (bfd_coff_bad_format_hook (abfd, &internal_f) == false) { | |
d1ad85a6 | 227 | bfd_set_error (bfd_error_wrong_format); |
075caafd ILT |
228 | return 0; |
229 | } | |
230 | nscns =internal_f.f_nscns; | |
231 | ||
232 | if (internal_f.f_opthdr) { | |
233 | PTR opthdr; | |
234 | ||
235 | opthdr = bfd_alloc (abfd, aoutsz); | |
236 | if (opthdr == NULL) | |
237 | return 0;; | |
238 | if (bfd_read(opthdr, 1,aoutsz, abfd) != aoutsz) { | |
239 | return 0; | |
240 | } | |
241 | bfd_coff_swap_aouthdr_in(abfd, opthdr, (PTR)&internal_a); | |
242 | } | |
243 | ||
244 | /* Seek past the opt hdr stuff */ | |
c16313f0 ILT |
245 | if (bfd_seek(abfd, (file_ptr) (internal_f.f_opthdr + filhsz), SEEK_SET) |
246 | != 0) | |
247 | return NULL; | |
075caafd | 248 | |
27f524a3 ILT |
249 | return coff_real_object_p(abfd, nscns, &internal_f, |
250 | (internal_f.f_opthdr != 0 | |
251 | ? &internal_a | |
252 | : (struct internal_aouthdr *) NULL)); | |
075caafd ILT |
253 | } |
254 | ||
255 | /* Get the BFD section from a COFF symbol section number. */ | |
256 | ||
257 | struct sec * | |
25057836 JL |
258 | coff_section_from_bfd_index (abfd, index) |
259 | bfd *abfd; | |
260 | int index; | |
075caafd ILT |
261 | { |
262 | struct sec *answer = abfd->sections; | |
263 | ||
264 | if (index == N_ABS) | |
265 | { | |
266 | return &bfd_abs_section; | |
267 | } | |
268 | if (index == N_UNDEF) | |
269 | { | |
270 | return &bfd_und_section; | |
271 | } | |
272 | if(index == N_DEBUG) | |
273 | { | |
274 | return &bfd_debug_section; | |
275 | ||
276 | } | |
277 | ||
278 | while (answer) { | |
279 | if (answer->target_index == index) | |
280 | return answer; | |
281 | answer = answer->next; | |
282 | } | |
c16313f0 ILT |
283 | |
284 | /* We should not reach this point, but the SCO 3.2v4 /lib/libc_s.a | |
285 | has a bad symbol table in biglitpow.o. */ | |
286 | return &bfd_und_section; | |
075caafd ILT |
287 | } |
288 | ||
289 | /* Get the upper bound of a COFF symbol table. */ | |
290 | ||
326e32d7 | 291 | long |
075caafd ILT |
292 | coff_get_symtab_upper_bound(abfd) |
293 | bfd *abfd; | |
294 | { | |
295 | if (!bfd_coff_slurp_symbol_table(abfd)) | |
326e32d7 | 296 | return -1; |
075caafd ILT |
297 | |
298 | return (bfd_get_symcount(abfd) + 1) * (sizeof(coff_symbol_type *)); | |
299 | } | |
300 | ||
301 | ||
302 | /* Canonicalize a COFF symbol table. */ | |
303 | ||
326e32d7 | 304 | long |
25057836 JL |
305 | coff_get_symtab (abfd, alocation) |
306 | bfd *abfd; | |
307 | asymbol **alocation; | |
075caafd ILT |
308 | { |
309 | unsigned int counter = 0; | |
310 | coff_symbol_type *symbase; | |
311 | coff_symbol_type **location = (coff_symbol_type **) (alocation); | |
312 | if (!bfd_coff_slurp_symbol_table(abfd)) | |
326e32d7 | 313 | return -1; |
075caafd ILT |
314 | |
315 | symbase = obj_symbols(abfd); | |
316 | while (counter < bfd_get_symcount(abfd)) | |
317 | { | |
318 | /* This nasty code looks at the symbol to decide whether or | |
319 | not it is descibes a constructor/destructor entry point. It | |
320 | is structured this way to (hopefully) speed non matches */ | |
321 | #if 0 | |
322 | if (0 && symbase->symbol.name[9] == '$') | |
323 | { | |
324 | bfd_constructor_entry(abfd, | |
325 | (asymbol **)location, | |
326 | symbase->symbol.name[10] == 'I' ? | |
327 | "CTOR" : "DTOR"); | |
328 | } | |
329 | #endif | |
330 | *(location++) = symbase++; | |
331 | counter++; | |
332 | } | |
333 | *location++ = 0; | |
334 | return bfd_get_symcount(abfd); | |
335 | } | |
336 | ||
337 | /* Set lineno_count for the output sections of a COFF file. */ | |
338 | ||
27f524a3 | 339 | int |
25057836 JL |
340 | coff_count_linenumbers (abfd) |
341 | bfd *abfd; | |
075caafd ILT |
342 | { |
343 | unsigned int limit = bfd_get_symcount(abfd); | |
344 | unsigned int i; | |
27f524a3 | 345 | int total = 0; |
075caafd | 346 | asymbol **p; |
27f524a3 ILT |
347 | { |
348 | asection *s = abfd->sections->output_section; | |
349 | while (s) { | |
350 | BFD_ASSERT(s->lineno_count == 0); | |
351 | s = s->next; | |
352 | } | |
353 | } | |
075caafd ILT |
354 | |
355 | ||
356 | for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) { | |
357 | asymbol *q_maybe = *p; | |
358 | if (bfd_asymbol_flavour(q_maybe) == bfd_target_coff_flavour) { | |
359 | coff_symbol_type *q = coffsymbol(q_maybe); | |
360 | if (q->lineno) { | |
361 | /* | |
362 | This symbol has a linenumber, increment the owning | |
363 | section's linenumber count | |
364 | */ | |
365 | alent *l = q->lineno; | |
366 | q->symbol.section->output_section->lineno_count++; | |
27f524a3 | 367 | total ++; |
075caafd ILT |
368 | l++; |
369 | while (l->line_number) { | |
27f524a3 | 370 | total ++; |
075caafd ILT |
371 | q->symbol.section->output_section->lineno_count++; |
372 | l++; | |
373 | } | |
374 | } | |
375 | } | |
376 | } | |
27f524a3 | 377 | return total; |
075caafd ILT |
378 | } |
379 | ||
380 | /* Takes a bfd and a symbol, returns a pointer to the coff specific | |
381 | area of the symbol if there is one. */ | |
382 | ||
330595d0 | 383 | /*ARGSUSED*/ |
075caafd | 384 | coff_symbol_type * |
25057836 JL |
385 | coff_symbol_from (ignore_abfd, symbol) |
386 | bfd *ignore_abfd; | |
387 | asymbol *symbol; | |
075caafd ILT |
388 | { |
389 | if (bfd_asymbol_flavour(symbol) != bfd_target_coff_flavour) | |
390 | return (coff_symbol_type *)NULL; | |
391 | ||
392 | if (bfd_asymbol_bfd(symbol)->tdata.coff_obj_data == (coff_data_type*)NULL) | |
393 | return (coff_symbol_type *)NULL; | |
394 | ||
395 | return (coff_symbol_type *) symbol; | |
396 | } | |
397 | ||
398 | static void | |
25057836 JL |
399 | fixup_symbol_value (coff_symbol_ptr, syment) |
400 | coff_symbol_type *coff_symbol_ptr; | |
401 | struct internal_syment *syment; | |
075caafd ILT |
402 | { |
403 | ||
404 | /* Normalize the symbol flags */ | |
e61cfdf8 | 405 | if (bfd_is_com_section (coff_symbol_ptr->symbol.section)) { |
075caafd ILT |
406 | /* a common symbol is undefined with a value */ |
407 | syment->n_scnum = N_UNDEF; | |
408 | syment->n_value = coff_symbol_ptr->symbol.value; | |
409 | } | |
410 | else if (coff_symbol_ptr->symbol.flags & BSF_DEBUGGING) { | |
411 | syment->n_value = coff_symbol_ptr->symbol.value; | |
412 | } | |
413 | else if (coff_symbol_ptr->symbol.section == & bfd_und_section) { | |
414 | syment->n_scnum = N_UNDEF; | |
415 | syment->n_value = 0; | |
416 | } | |
417 | else { | |
418 | if (coff_symbol_ptr->symbol.section) { | |
419 | syment->n_scnum = | |
420 | coff_symbol_ptr->symbol.section->output_section->target_index; | |
421 | ||
422 | syment->n_value = | |
423 | coff_symbol_ptr->symbol.value + | |
424 | coff_symbol_ptr->symbol.section->output_offset + | |
425 | coff_symbol_ptr->symbol.section->output_section->vma; | |
426 | } | |
427 | else { | |
428 | BFD_ASSERT(0); | |
429 | /* This can happen, but I don't know why yet ([email protected]) */ | |
430 | syment->n_scnum = N_ABS; | |
431 | syment->n_value = coff_symbol_ptr->symbol.value; | |
432 | } | |
433 | } | |
434 | } | |
435 | ||
436 | /* run through all the symbols in the symbol table and work out what | |
437 | their indexes into the symbol table will be when output | |
438 | ||
439 | Coff requires that each C_FILE symbol points to the next one in the | |
440 | chain, and that the last one points to the first external symbol. We | |
441 | do that here too. | |
442 | ||
443 | */ | |
9783e04a | 444 | boolean |
25057836 JL |
445 | coff_renumber_symbols (bfd_ptr) |
446 | bfd *bfd_ptr; | |
075caafd ILT |
447 | { |
448 | unsigned int symbol_count = bfd_get_symcount(bfd_ptr); | |
449 | asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols; | |
450 | unsigned int native_index = 0; | |
451 | struct internal_syment *last_file = (struct internal_syment *)NULL; | |
452 | unsigned int symbol_index; | |
453 | ||
454 | /* COFF demands that undefined symbols come after all other symbols. | |
455 | Since we don't need to impose this extra knowledge on all our client | |
456 | programs, deal with that here. Sort the symbol table; just move the | |
457 | undefined symbols to the end, leaving the rest alone. */ | |
458 | /* @@ Do we have some condition we could test for, so we don't always | |
459 | have to do this? I don't think relocatability is quite right, but | |
460 | I'm not certain. [raeburn:19920508.1711EST] */ | |
461 | { | |
462 | asymbol **newsyms; | |
463 | int i; | |
464 | ||
465 | newsyms = (asymbol **) bfd_alloc_by_size_t (bfd_ptr, | |
466 | sizeof (asymbol *) | |
467 | * (symbol_count + 1)); | |
9783e04a DM |
468 | if (!newsyms) |
469 | { | |
d1ad85a6 | 470 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
471 | return false; |
472 | } | |
075caafd ILT |
473 | bfd_ptr->outsymbols = newsyms; |
474 | for (i = 0; i < symbol_count; i++) | |
475 | if (symbol_ptr_ptr[i]->section != &bfd_und_section) | |
476 | *newsyms++ = symbol_ptr_ptr[i]; | |
477 | for (i = 0; i < symbol_count; i++) | |
478 | if (symbol_ptr_ptr[i]->section == &bfd_und_section) | |
479 | *newsyms++ = symbol_ptr_ptr[i]; | |
480 | *newsyms = (asymbol *) NULL; | |
481 | symbol_ptr_ptr = bfd_ptr->outsymbols; | |
482 | } | |
483 | ||
484 | for (symbol_index = 0; symbol_index < symbol_count; symbol_index++) | |
485 | { | |
486 | coff_symbol_type *coff_symbol_ptr = coff_symbol_from(bfd_ptr, symbol_ptr_ptr[symbol_index]); | |
487 | if (coff_symbol_ptr && coff_symbol_ptr->native) { | |
488 | combined_entry_type *s = coff_symbol_ptr->native; | |
489 | int i; | |
490 | ||
491 | if (s->u.syment.n_sclass == C_FILE) | |
492 | { | |
493 | if (last_file != (struct internal_syment *)NULL) { | |
494 | last_file->n_value = native_index; | |
495 | } | |
496 | last_file = &(s->u.syment); | |
497 | } | |
498 | else { | |
499 | ||
500 | /* Modify the symbol values according to their section and | |
501 | type */ | |
502 | ||
503 | fixup_symbol_value(coff_symbol_ptr, &(s->u.syment)); | |
504 | } | |
505 | for (i = 0; i < s->u.syment.n_numaux + 1; i++) { | |
506 | s[i].offset = native_index ++; | |
507 | } | |
508 | } | |
509 | else { | |
510 | native_index++; | |
511 | } | |
512 | } | |
513 | obj_conv_table_size (bfd_ptr) = native_index; | |
9783e04a | 514 | return true; |
075caafd ILT |
515 | } |
516 | ||
517 | /* | |
518 | Run thorough the symbol table again, and fix it so that all pointers to | |
519 | entries are changed to the entries' index in the output symbol table. | |
520 | ||
521 | */ | |
522 | void | |
9783e04a DM |
523 | coff_mangle_symbols (bfd_ptr) |
524 | bfd *bfd_ptr; | |
075caafd | 525 | { |
9783e04a | 526 | unsigned int symbol_count = bfd_get_symcount (bfd_ptr); |
075caafd ILT |
527 | asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols; |
528 | unsigned int symbol_index; | |
529 | ||
530 | for (symbol_index = 0; symbol_index < symbol_count; symbol_index++) | |
9783e04a DM |
531 | { |
532 | coff_symbol_type *coff_symbol_ptr = | |
533 | coff_symbol_from (bfd_ptr, symbol_ptr_ptr[symbol_index]); | |
075caafd | 534 | |
9783e04a DM |
535 | if (coff_symbol_ptr && coff_symbol_ptr->native) |
536 | { | |
075caafd ILT |
537 | int i; |
538 | combined_entry_type *s = coff_symbol_ptr->native; | |
539 | ||
9783e04a DM |
540 | if (s->fix_value) |
541 | { | |
542 | /* FIXME: We should use a union here. */ | |
543 | s->u.syment.n_value = | |
544 | ((combined_entry_type *) s->u.syment.n_value)->offset; | |
545 | s->fix_value = 0; | |
075caafd | 546 | } |
9783e04a DM |
547 | for (i = 0; i < s->u.syment.n_numaux ; i++) |
548 | { | |
549 | combined_entry_type *a = s + i + 1; | |
550 | if (a->fix_tag) | |
551 | { | |
552 | a->u.auxent.x_sym.x_tagndx.l = | |
553 | a->u.auxent.x_sym.x_tagndx.p->offset; | |
554 | a->fix_tag = 0; | |
555 | } | |
556 | if (a->fix_end) | |
557 | { | |
558 | a->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l = | |
559 | a->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p->offset; | |
560 | a->fix_end = 0; | |
561 | } | |
562 | if (a->fix_scnlen) | |
563 | { | |
564 | a->u.auxent.x_csect.x_scnlen.l = | |
565 | a->u.auxent.x_csect.x_scnlen.p->offset; | |
566 | a->fix_scnlen = 0; | |
567 | } | |
075caafd | 568 | } |
075caafd | 569 | } |
9783e04a | 570 | } |
075caafd ILT |
571 | } |
572 | ||
9783e04a DM |
573 | static bfd_size_type string_size; |
574 | static bfd_size_type debug_string_size; | |
575 | static asection *debug_string_section; | |
075caafd ILT |
576 | |
577 | static void | |
25057836 JL |
578 | coff_fix_symbol_name (abfd, symbol, native) |
579 | bfd *abfd; | |
580 | asymbol *symbol; | |
581 | combined_entry_type *native; | |
075caafd ILT |
582 | { |
583 | unsigned int name_length; | |
584 | union internal_auxent *auxent; | |
585 | char * name = ( char *)(symbol->name); | |
586 | ||
587 | if (name == (char *) NULL) { | |
588 | /* coff symbols always have names, so we'll make one up */ | |
589 | symbol->name = "strange"; | |
590 | name = (char *)symbol->name; | |
591 | } | |
592 | name_length = strlen(name); | |
593 | ||
594 | if (native->u.syment.n_sclass == C_FILE) { | |
595 | strncpy(native->u.syment._n._n_name, ".file", SYMNMLEN); | |
596 | auxent = &(native+1)->u.auxent; | |
597 | ||
598 | if (bfd_coff_long_filenames (abfd)) { | |
599 | if (name_length <= FILNMLEN) { | |
600 | strncpy(auxent->x_file.x_fname, name, FILNMLEN); | |
601 | } | |
602 | else { | |
603 | auxent->x_file.x_n.x_offset = string_size + 4; | |
604 | auxent->x_file.x_n.x_zeroes = 0; | |
605 | string_size += name_length + 1; | |
606 | } | |
607 | } | |
608 | else { | |
609 | strncpy(auxent->x_file.x_fname, name, FILNMLEN); | |
610 | if (name_length > FILNMLEN) { | |
611 | name[FILNMLEN] = '\0'; | |
612 | } | |
613 | } | |
614 | } | |
615 | else | |
9783e04a DM |
616 | { /* NOT A C_FILE SYMBOL */ |
617 | if (name_length <= SYMNMLEN) | |
618 | { | |
075caafd ILT |
619 | /* This name will fit into the symbol neatly */ |
620 | strncpy(native->u.syment._n._n_name, symbol->name, SYMNMLEN); | |
621 | } | |
9783e04a DM |
622 | else if (! bfd_coff_symname_in_debug (abfd, &native->u.syment)) |
623 | { | |
075caafd ILT |
624 | native->u.syment._n._n_n._n_offset = string_size + 4; |
625 | native->u.syment._n._n_n._n_zeroes = 0; | |
626 | string_size += name_length + 1; | |
627 | } | |
9783e04a DM |
628 | else |
629 | { | |
630 | long filepos; | |
631 | bfd_byte buf[2]; | |
632 | ||
633 | /* This name should be written into the .debug section. For | |
634 | some reason each name is preceded by a two byte length | |
635 | and also followed by a null byte. FIXME: We assume that | |
636 | the .debug section has already been created, and that it | |
637 | is large enough. */ | |
638 | if (debug_string_section == (asection *) NULL) | |
639 | debug_string_section = bfd_get_section_by_name (abfd, ".debug"); | |
640 | filepos = bfd_tell (abfd); | |
641 | bfd_put_16 (abfd, name_length + 1, buf); | |
642 | if (! bfd_set_section_contents (abfd, | |
643 | debug_string_section, | |
644 | (PTR) buf, | |
645 | (file_ptr) debug_string_size, | |
646 | (bfd_size_type) 2) | |
647 | || ! bfd_set_section_contents (abfd, | |
648 | debug_string_section, | |
649 | (PTR) symbol->name, | |
650 | (file_ptr) debug_string_size + 2, | |
651 | (bfd_size_type) name_length + 1)) | |
652 | abort (); | |
653 | if (bfd_seek (abfd, filepos, SEEK_SET) != 0) | |
654 | abort (); | |
655 | native->u.syment._n._n_n._n_offset = debug_string_size + 2; | |
656 | native->u.syment._n._n_n._n_zeroes = 0; | |
657 | debug_string_size += name_length + 3; | |
658 | } | |
659 | } | |
075caafd ILT |
660 | } |
661 | ||
bfe8224f ILT |
662 | /* We need to keep track of the symbol index so that when we write out |
663 | the relocs we can get the index for a symbol. This method is a | |
664 | hack. FIXME. */ | |
665 | ||
666 | #define set_index(symbol, idx) ((symbol)->udata = (PTR) (idx)) | |
667 | ||
668 | /* Write a symbol out to a COFF file. */ | |
075caafd | 669 | |
bfe8224f | 670 | static boolean |
25057836 JL |
671 | coff_write_symbol (abfd, symbol, native, written) |
672 | bfd *abfd; | |
673 | asymbol *symbol; | |
674 | combined_entry_type *native; | |
bfe8224f | 675 | unsigned int *written; |
075caafd | 676 | { |
bfe8224f ILT |
677 | unsigned int numaux = native->u.syment.n_numaux; |
678 | int type = native->u.syment.n_type; | |
679 | int class = native->u.syment.n_sclass; | |
075caafd ILT |
680 | PTR buf; |
681 | bfd_size_type symesz; | |
682 | ||
bfe8224f ILT |
683 | /* @@ bfd_debug_section isn't accessible outside this file, but we |
684 | know that C_FILE symbols belong there. So move them. */ | |
075caafd ILT |
685 | if (native->u.syment.n_sclass == C_FILE) |
686 | symbol->section = &bfd_debug_section; | |
687 | ||
688 | if (symbol->section == &bfd_abs_section) | |
bfe8224f ILT |
689 | { |
690 | native->u.syment.n_scnum = N_ABS; | |
691 | } | |
075caafd | 692 | else if (symbol->section == &bfd_debug_section) |
bfe8224f ILT |
693 | { |
694 | native->u.syment.n_scnum = N_DEBUG; | |
695 | } | |
075caafd | 696 | else if (symbol->section == &bfd_und_section) |
bfe8224f ILT |
697 | { |
698 | native->u.syment.n_scnum = N_UNDEF; | |
699 | } | |
075caafd | 700 | else |
bfe8224f ILT |
701 | { |
702 | native->u.syment.n_scnum = | |
703 | symbol->section->output_section->target_index; | |
704 | } | |
075caafd | 705 | |
bfe8224f | 706 | coff_fix_symbol_name (abfd, symbol, native); |
075caafd ILT |
707 | |
708 | symesz = bfd_coff_symesz (abfd); | |
709 | buf = bfd_alloc (abfd, symesz); | |
9783e04a DM |
710 | if (!buf) |
711 | { | |
d1ad85a6 | 712 | bfd_set_error (bfd_error_no_memory); |
bfe8224f | 713 | return false; |
9783e04a | 714 | } |
bfe8224f ILT |
715 | bfd_coff_swap_sym_out (abfd, &native->u.syment, buf); |
716 | if (bfd_write (buf, 1, symesz, abfd) != symesz) | |
717 | return false; | |
075caafd ILT |
718 | bfd_release (abfd, buf); |
719 | ||
720 | if (native->u.syment.n_numaux > 0) | |
721 | { | |
722 | bfd_size_type auxesz; | |
723 | unsigned int j; | |
724 | ||
725 | auxesz = bfd_coff_auxesz (abfd); | |
726 | buf = bfd_alloc (abfd, auxesz); | |
9783e04a DM |
727 | if (!buf) |
728 | { | |
d1ad85a6 | 729 | bfd_set_error (bfd_error_no_memory); |
bfe8224f | 730 | return false; |
9783e04a | 731 | } |
075caafd ILT |
732 | for (j = 0; j < native->u.syment.n_numaux; j++) |
733 | { | |
bfe8224f ILT |
734 | bfd_coff_swap_aux_out (abfd, |
735 | &((native + j + 1)->u.auxent), | |
736 | type, | |
737 | class, | |
738 | j, | |
739 | native->u.syment.n_numaux, | |
740 | buf); | |
741 | if (bfd_write (buf, 1, auxesz, abfd)!= auxesz) | |
742 | return false; | |
075caafd ILT |
743 | } |
744 | bfd_release (abfd, buf); | |
745 | } | |
bfe8224f ILT |
746 | |
747 | /* Store the index for use when we write out the relocs. */ | |
748 | set_index (symbol, *written); | |
749 | ||
750 | *written += numaux + 1; | |
751 | return true; | |
075caafd ILT |
752 | } |
753 | ||
bfe8224f ILT |
754 | /* Write out a symbol to a COFF file that does not come from a COFF |
755 | file originally. This symbol may have been created by the linker, | |
756 | or we may be linking a non COFF file to a COFF file. */ | |
075caafd | 757 | |
bfe8224f | 758 | static boolean |
25057836 JL |
759 | coff_write_alien_symbol (abfd, symbol, written) |
760 | bfd *abfd; | |
761 | asymbol *symbol; | |
bfe8224f | 762 | unsigned int *written; |
075caafd | 763 | { |
075caafd ILT |
764 | combined_entry_type *native; |
765 | combined_entry_type dummy; | |
bfe8224f | 766 | |
075caafd ILT |
767 | native = &dummy; |
768 | native->u.syment.n_type = T_NULL; | |
769 | native->u.syment.n_flags = 0; | |
770 | if (symbol->section == &bfd_und_section) | |
bfe8224f ILT |
771 | { |
772 | native->u.syment.n_scnum = N_UNDEF; | |
773 | native->u.syment.n_value = symbol->value; | |
075caafd | 774 | } |
e61cfdf8 | 775 | else if (bfd_is_com_section (symbol->section)) |
bfe8224f ILT |
776 | { |
777 | native->u.syment.n_scnum = N_UNDEF; | |
778 | native->u.syment.n_value = symbol->value; | |
075caafd | 779 | } |
bfe8224f | 780 | else if (symbol->flags & BSF_DEBUGGING) |
075caafd | 781 | { |
bfe8224f ILT |
782 | /* Remove the symbol name so that it does not take up any space. |
783 | COFF won't know what to do with it anyhow. */ | |
784 | symbol->name = ""; | |
075caafd | 785 | } |
bfe8224f ILT |
786 | else |
787 | { | |
788 | native->u.syment.n_scnum = | |
789 | symbol->section->output_section->target_index; | |
790 | native->u.syment.n_value = (symbol->value | |
791 | + symbol->section->output_section->vma | |
792 | + symbol->section->output_offset); | |
793 | ||
794 | /* Copy the any flags from the the file header into the symbol. | |
795 | FIXME: Why? */ | |
796 | { | |
797 | coff_symbol_type *c = coff_symbol_from (abfd, symbol); | |
798 | if (c != (coff_symbol_type *) NULL) | |
799 | native->u.syment.n_flags = bfd_asymbol_bfd (&c->symbol)->flags; | |
800 | } | |
075caafd ILT |
801 | } |
802 | ||
bfe8224f | 803 | native->u.syment.n_type = 0; |
075caafd | 804 | if (symbol->flags & BSF_LOCAL) |
bfe8224f | 805 | native->u.syment.n_sclass = C_STAT; |
075caafd | 806 | else |
bfe8224f ILT |
807 | native->u.syment.n_sclass = C_EXT; |
808 | native->u.syment.n_numaux = 0; | |
075caafd | 809 | |
bfe8224f | 810 | return coff_write_symbol (abfd, symbol, native, written); |
075caafd ILT |
811 | } |
812 | ||
bfe8224f ILT |
813 | /* Write a native symbol to a COFF file. */ |
814 | ||
815 | static boolean | |
25057836 JL |
816 | coff_write_native_symbol (abfd, symbol, written) |
817 | bfd *abfd; | |
818 | coff_symbol_type *symbol; | |
bfe8224f | 819 | unsigned int *written; |
075caafd | 820 | { |
075caafd | 821 | combined_entry_type *native = symbol->native; |
bfe8224f | 822 | alent *lineno = symbol->lineno; |
075caafd | 823 | |
bfe8224f ILT |
824 | /* If this symbol has an associated line number, we must store the |
825 | symbol index in the line number field. We also tag the auxent to | |
826 | point to the right place in the lineno table. */ | |
827 | if (lineno && !symbol->done_lineno) | |
828 | { | |
829 | unsigned int count = 0; | |
830 | lineno[count].u.offset = *written; | |
831 | if (native->u.syment.n_numaux) | |
832 | { | |
833 | union internal_auxent *a = &((native+1)->u.auxent); | |
075caafd | 834 | |
bfe8224f ILT |
835 | a->x_sym.x_fcnary.x_fcn.x_lnnoptr = |
836 | symbol->symbol.section->output_section->moving_line_filepos; | |
837 | } | |
075caafd | 838 | |
bfe8224f ILT |
839 | /* Count and relocate all other linenumbers. */ |
840 | count++; | |
841 | while (lineno[count].line_number != 0) | |
842 | { | |
075caafd | 843 | #if 0 |
bfe8224f ILT |
844 | /* 13 april 92. sac |
845 | I've been told this, but still need proof: | |
846 | > The second bug is also in `bfd/coffcode.h'. This bug | |
847 | > causes the linker to screw up the pc-relocations for | |
848 | > all the line numbers in COFF code. This bug isn't only | |
849 | > specific to A29K implementations, but affects all | |
850 | > systems using COFF format binaries. Note that in COFF | |
851 | > object files, the line number core offsets output by | |
852 | > the assembler are relative to the start of each | |
853 | > procedure, not to the start of the .text section. This | |
854 | > patch relocates the line numbers relative to the | |
855 | > `native->u.syment.n_value' instead of the section | |
856 | > virtual address. | |
857 | > [email protected] (Jon Olson) | |
858 | */ | |
859 | lineno[count].u.offset += native->u.syment.n_value; | |
075caafd | 860 | #else |
bfe8224f ILT |
861 | lineno[count].u.offset += |
862 | (symbol->symbol.section->output_section->vma | |
863 | + symbol->symbol.section->output_offset); | |
075caafd | 864 | #endif |
bfe8224f ILT |
865 | count++; |
866 | } | |
867 | symbol->done_lineno = true; | |
075caafd | 868 | |
bfe8224f ILT |
869 | symbol->symbol.section->output_section->moving_line_filepos += |
870 | count * bfd_coff_linesz (abfd); | |
871 | } | |
872 | ||
873 | return coff_write_symbol (abfd, &(symbol->symbol), native, written); | |
075caafd ILT |
874 | } |
875 | ||
bfe8224f ILT |
876 | /* Write out the COFF symbols. */ |
877 | ||
878 | boolean | |
25057836 | 879 | coff_write_symbols (abfd) |
bfe8224f | 880 | bfd *abfd; |
075caafd | 881 | { |
bfe8224f ILT |
882 | unsigned int i; |
883 | unsigned int limit = bfd_get_symcount(abfd); | |
884 | unsigned int written = 0; | |
885 | asymbol **p; | |
075caafd ILT |
886 | |
887 | string_size = 0; | |
9783e04a | 888 | debug_string_size = 0; |
075caafd ILT |
889 | |
890 | /* Seek to the right place */ | |
bfe8224f ILT |
891 | if (bfd_seek (abfd, obj_sym_filepos(abfd), SEEK_SET) != 0) |
892 | return false; | |
075caafd ILT |
893 | |
894 | /* Output all the symbols we have */ | |
895 | ||
896 | written = 0; | |
897 | for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) | |
bfe8224f ILT |
898 | { |
899 | asymbol *symbol = *p; | |
900 | coff_symbol_type *c_symbol = coff_symbol_from (abfd, symbol); | |
075caafd | 901 | |
bfe8224f ILT |
902 | if (c_symbol == (coff_symbol_type *) NULL |
903 | || c_symbol->native == (combined_entry_type *)NULL) | |
904 | { | |
905 | if (! coff_write_alien_symbol (abfd, symbol, &written)) | |
906 | return false; | |
907 | } | |
908 | else | |
909 | { | |
910 | if (! coff_write_native_symbol (abfd, c_symbol, &written)) | |
911 | return false; | |
912 | } | |
913 | } | |
075caafd | 914 | |
bfe8224f | 915 | bfd_get_symcount (abfd) = written; |
075caafd ILT |
916 | |
917 | /* Now write out strings */ | |
918 | ||
919 | if (string_size != 0) | |
920 | { | |
bfe8224f | 921 | unsigned int size = string_size + 4; |
075caafd ILT |
922 | bfd_byte buffer[4]; |
923 | ||
bfe8224f | 924 | bfd_h_put_32 (abfd, size, buffer); |
c16313f0 ILT |
925 | if (bfd_write ((PTR) buffer, 1, sizeof (buffer), abfd) != sizeof (buffer)) |
926 | return false; | |
075caafd ILT |
927 | for (p = abfd->outsymbols, i = 0; |
928 | i < limit; | |
929 | i++, p++) | |
bfe8224f ILT |
930 | { |
931 | asymbol *q = *p; | |
932 | size_t name_length = strlen (q->name); | |
933 | coff_symbol_type *c_symbol = coff_symbol_from (abfd, q); | |
934 | size_t maxlen; | |
935 | ||
936 | /* Figure out whether the symbol name should go in the string | |
937 | table. Symbol names that are short enough are stored | |
938 | directly in the syment structure. File names permit a | |
939 | different, longer, length in the syment structure. On | |
940 | XCOFF, some symbol names are stored in the .debug section | |
941 | rather than in the string table. */ | |
942 | ||
943 | if (c_symbol == NULL | |
944 | || c_symbol->native == NULL) | |
945 | { | |
946 | /* This is not a COFF symbol, so it certainly is not a | |
947 | file name, nor does it go in the .debug section. */ | |
948 | maxlen = SYMNMLEN; | |
949 | } | |
950 | else if (bfd_coff_symname_in_debug (abfd, | |
951 | &c_symbol->native->u.syment)) | |
952 | { | |
953 | /* This symbol name is in the XCOFF .debug section. | |
954 | Don't write it into the string table. */ | |
955 | maxlen = name_length; | |
956 | } | |
957 | else if (c_symbol->native->u.syment.n_sclass == C_FILE) | |
958 | maxlen = FILNMLEN; | |
959 | else | |
960 | maxlen = SYMNMLEN; | |
961 | ||
962 | if (name_length > maxlen) | |
963 | { | |
964 | if (bfd_write ((PTR) (q->name), 1, name_length + 1, abfd) | |
965 | != name_length + 1) | |
966 | return false; | |
967 | } | |
968 | } | |
075caafd | 969 | } |
bfe8224f ILT |
970 | else |
971 | { | |
972 | /* We would normally not write anything here, but we'll write | |
973 | out 4 so that any stupid coff reader which tries to read the | |
974 | string table even when there isn't one won't croak. */ | |
975 | unsigned int size = 4; | |
976 | bfd_byte buffer[4]; | |
977 | ||
978 | bfd_h_put_32 (abfd, size, buffer); | |
979 | if (bfd_write ((PTR) buffer, 1, 4, abfd) != 4) | |
980 | return false; | |
981 | } | |
9783e04a | 982 | |
bfe8224f ILT |
983 | /* Make sure the .debug section was created to be the correct size. |
984 | We should create it ourselves on the fly, but we don't because | |
985 | BFD won't let us write to any section until we know how large all | |
986 | the sections are. We could still do it by making another pass | |
987 | over the symbols. FIXME. */ | |
9783e04a DM |
988 | BFD_ASSERT (debug_string_size == 0 |
989 | || (debug_string_section != (asection *) NULL | |
990 | && (BFD_ALIGN (debug_string_size, | |
991 | 1 << debug_string_section->alignment_power) | |
992 | == bfd_section_size (abfd, debug_string_section)))); | |
bfe8224f ILT |
993 | |
994 | return true; | |
075caafd ILT |
995 | } |
996 | ||
9783e04a | 997 | boolean |
25057836 JL |
998 | coff_write_linenumbers (abfd) |
999 | bfd *abfd; | |
075caafd ILT |
1000 | { |
1001 | asection *s; | |
1002 | bfd_size_type linesz; | |
1003 | PTR buff; | |
1004 | ||
1005 | linesz = bfd_coff_linesz (abfd); | |
1006 | buff = bfd_alloc (abfd, linesz); | |
9783e04a DM |
1007 | if (!buff) |
1008 | { | |
d1ad85a6 | 1009 | bfd_set_error (bfd_error_no_memory); |
25057836 | 1010 | return false; |
9783e04a | 1011 | } |
075caafd ILT |
1012 | for (s = abfd->sections; s != (asection *) NULL; s = s->next) { |
1013 | if (s->lineno_count) { | |
1014 | asymbol **q = abfd->outsymbols; | |
c16313f0 ILT |
1015 | if (bfd_seek(abfd, s->line_filepos, SEEK_SET) != 0) |
1016 | return false; | |
075caafd ILT |
1017 | /* Find all the linenumbers in this section */ |
1018 | while (*q) { | |
1019 | asymbol *p = *q; | |
27f524a3 ILT |
1020 | if (p->section->output_section == s) { |
1021 | alent *l = | |
1022 | BFD_SEND(bfd_asymbol_bfd(p), _get_lineno, (bfd_asymbol_bfd(p), p)); | |
1023 | if (l) { | |
1024 | /* Found a linenumber entry, output */ | |
1025 | struct internal_lineno out; | |
1026 | memset( (PTR)&out, 0, sizeof(out)); | |
1027 | out.l_lnno = 0; | |
075caafd ILT |
1028 | out.l_addr.l_symndx = l->u.offset; |
1029 | bfd_coff_swap_lineno_out(abfd, &out, buff); | |
c16313f0 ILT |
1030 | if (bfd_write(buff, 1, linesz, abfd) != linesz) |
1031 | return false; | |
075caafd | 1032 | l++; |
27f524a3 ILT |
1033 | while (l->line_number) { |
1034 | out.l_lnno = l->line_number; | |
1035 | out.l_addr.l_symndx = l->u.offset; | |
1036 | bfd_coff_swap_lineno_out(abfd, &out, buff); | |
c16313f0 ILT |
1037 | if (bfd_write(buff, 1, linesz, abfd) != linesz) |
1038 | return false; | |
27f524a3 ILT |
1039 | l++; |
1040 | } | |
075caafd ILT |
1041 | } |
1042 | } | |
1043 | q++; | |
1044 | } | |
1045 | } | |
1046 | } | |
1047 | bfd_release (abfd, buff); | |
9783e04a | 1048 | return true; |
075caafd ILT |
1049 | } |
1050 | ||
330595d0 | 1051 | /*ARGSUSED*/ |
075caafd | 1052 | alent * |
25057836 JL |
1053 | coff_get_lineno (ignore_abfd, symbol) |
1054 | bfd *ignore_abfd; | |
1055 | asymbol *symbol; | |
075caafd ILT |
1056 | { |
1057 | return coffsymbol(symbol)->lineno; | |
1058 | } | |
1059 | ||
1060 | asymbol * | |
1061 | coff_section_symbol (abfd, name) | |
1062 | bfd *abfd; | |
1063 | char *name; | |
1064 | { | |
1065 | asection *sec = bfd_make_section_old_way (abfd, name); | |
1066 | asymbol *sym; | |
1067 | combined_entry_type *csym; | |
1068 | ||
1069 | sym = sec->symbol; | |
4c3721d5 | 1070 | csym = coff_symbol_from (abfd, sym)->native; |
075caafd ILT |
1071 | /* Make sure back-end COFF stuff is there. */ |
1072 | if (csym == 0) | |
1073 | { | |
1074 | struct foo { | |
1075 | coff_symbol_type sym; | |
1076 | /* @@FIXME This shouldn't use a fixed size!! */ | |
1077 | combined_entry_type e[10]; | |
1078 | }; | |
1079 | struct foo *f; | |
1080 | f = (struct foo *) bfd_alloc_by_size_t (abfd, sizeof (*f)); | |
9783e04a DM |
1081 | if (!f) |
1082 | { | |
d1ad85a6 | 1083 | bfd_set_error (bfd_error_no_error); |
9783e04a DM |
1084 | return NULL; |
1085 | } | |
075caafd ILT |
1086 | memset ((char *) f, 0, sizeof (*f)); |
1087 | coff_symbol_from (abfd, sym)->native = csym = f->e; | |
1088 | } | |
1089 | csym[0].u.syment.n_sclass = C_STAT; | |
1090 | csym[0].u.syment.n_numaux = 1; | |
1091 | /* SF_SET_STATICS (sym); @@ ??? */ | |
4c3721d5 ILT |
1092 | csym[1].u.auxent.x_scn.x_scnlen = sec->_raw_size; |
1093 | csym[1].u.auxent.x_scn.x_nreloc = sec->reloc_count; | |
1094 | csym[1].u.auxent.x_scn.x_nlinno = sec->lineno_count; | |
1095 | ||
1096 | if (sec->output_section == NULL) | |
075caafd | 1097 | { |
4c3721d5 ILT |
1098 | sec->output_section = sec; |
1099 | sec->output_offset = 0; | |
075caafd | 1100 | } |
4c3721d5 | 1101 | |
075caafd ILT |
1102 | return sym; |
1103 | } | |
1104 | ||
1105 | /* This function transforms the offsets into the symbol table into | |
1106 | pointers to syments. */ | |
1107 | ||
1108 | static void | |
25057836 JL |
1109 | coff_pointerize_aux (abfd, table_base, type, class, auxent) |
1110 | bfd *abfd; | |
1111 | combined_entry_type *table_base; | |
1112 | int type; | |
1113 | int class; | |
1114 | combined_entry_type *auxent; | |
075caafd ILT |
1115 | { |
1116 | /* Don't bother if this is a file or a section */ | |
1117 | if (class == C_STAT && type == T_NULL) return; | |
1118 | if (class == C_FILE) return; | |
1119 | ||
1120 | /* Otherwise patch up */ | |
1121 | #define N_TMASK coff_data (abfd)->local_n_tmask | |
1122 | #define N_BTSHFT coff_data (abfd)->local_n_btshft | |
1123 | if (ISFCN(type) || ISTAG(class) || class == C_BLOCK) { | |
1124 | auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p = table_base + | |
1125 | auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l; | |
1126 | auxent->fix_end = 1; | |
1127 | } | |
1128 | /* A negative tagndx is meaningless, but the SCO 3.2v4 cc can | |
1129 | generate one, so we must be careful to ignore it. */ | |
1130 | if (auxent->u.auxent.x_sym.x_tagndx.l > 0) { | |
1131 | auxent->u.auxent.x_sym.x_tagndx.p = | |
1132 | table_base + auxent->u.auxent.x_sym.x_tagndx.l; | |
1133 | auxent->fix_tag = 1; | |
1134 | } | |
1135 | } | |
1136 | ||
1137 | static char * | |
25057836 JL |
1138 | build_string_table (abfd) |
1139 | bfd *abfd; | |
075caafd ILT |
1140 | { |
1141 | char string_table_size_buffer[4]; | |
1142 | unsigned int string_table_size; | |
1143 | char *string_table; | |
1144 | ||
1145 | /* At this point we should be "seek"'d to the end of the | |
1146 | symbols === the symbol table size. */ | |
1147 | if (bfd_read((char *) string_table_size_buffer, | |
1148 | sizeof(string_table_size_buffer), | |
25057836 | 1149 | 1, abfd) != sizeof(string_table_size)) |
075caafd | 1150 | return (NULL); |
075caafd ILT |
1151 | |
1152 | string_table_size = bfd_h_get_32(abfd, (bfd_byte *) string_table_size_buffer); | |
1153 | ||
1154 | if ((string_table = (PTR) bfd_alloc(abfd, string_table_size -= 4)) == NULL) { | |
d1ad85a6 | 1155 | bfd_set_error (bfd_error_no_memory); |
075caafd ILT |
1156 | return (NULL); |
1157 | } /* on mallocation error */ | |
25057836 | 1158 | if (bfd_read(string_table, string_table_size, 1, abfd) != string_table_size) |
075caafd | 1159 | return (NULL); |
075caafd ILT |
1160 | return string_table; |
1161 | } | |
1162 | ||
1163 | /* Allocate space for the ".debug" section, and read it. | |
1164 | We did not read the debug section until now, because | |
1165 | we didn't want to go to the trouble until someone needed it. */ | |
1166 | ||
1167 | static char * | |
25057836 JL |
1168 | build_debug_section (abfd) |
1169 | bfd *abfd; | |
075caafd ILT |
1170 | { |
1171 | char *debug_section; | |
1172 | long position; | |
1173 | ||
1174 | asection *sect = bfd_get_section_by_name (abfd, ".debug"); | |
1175 | ||
1176 | if (!sect) { | |
d1ad85a6 | 1177 | bfd_set_error (bfd_error_no_debug_section); |
075caafd ILT |
1178 | return NULL; |
1179 | } | |
1180 | ||
1181 | debug_section = (PTR) bfd_alloc (abfd, | |
1182 | bfd_get_section_size_before_reloc (sect)); | |
1183 | if (debug_section == NULL) { | |
d1ad85a6 | 1184 | bfd_set_error (bfd_error_no_memory); |
075caafd ILT |
1185 | return NULL; |
1186 | } | |
1187 | ||
1188 | /* Seek to the beginning of the `.debug' section and read it. | |
1189 | Save the current position first; it is needed by our caller. | |
1190 | Then read debug section and reset the file pointer. */ | |
1191 | ||
1192 | position = bfd_tell (abfd); | |
c16313f0 ILT |
1193 | if (bfd_seek (abfd, sect->filepos, SEEK_SET) != 0 |
1194 | || (bfd_read (debug_section, | |
1195 | bfd_get_section_size_before_reloc (sect), 1, abfd) | |
1196 | != bfd_get_section_size_before_reloc(sect)) | |
1197 | || bfd_seek (abfd, position, SEEK_SET) != 0) | |
075caafd | 1198 | return NULL; |
075caafd ILT |
1199 | return debug_section; |
1200 | } | |
1201 | ||
1202 | ||
1203 | /* Return a pointer to a malloc'd copy of 'name'. 'name' may not be | |
1204 | \0-terminated, but will not exceed 'maxlen' characters. The copy *will* | |
1205 | be \0-terminated. */ | |
1206 | static char * | |
25057836 JL |
1207 | copy_name (abfd, name, maxlen) |
1208 | bfd *abfd; | |
1209 | char *name; | |
1210 | int maxlen; | |
075caafd ILT |
1211 | { |
1212 | int len; | |
1213 | char *newname; | |
1214 | ||
1215 | for (len = 0; len < maxlen; ++len) { | |
1216 | if (name[len] == '\0') { | |
1217 | break; | |
1218 | } | |
1219 | } | |
1220 | ||
1221 | if ((newname = (PTR) bfd_alloc(abfd, len+1)) == NULL) { | |
d1ad85a6 | 1222 | bfd_set_error (bfd_error_no_memory); |
075caafd ILT |
1223 | return (NULL); |
1224 | } | |
1225 | strncpy(newname, name, len); | |
1226 | newname[len] = '\0'; | |
1227 | return newname; | |
1228 | } | |
1229 | ||
1230 | /* Read a symbol table into freshly bfd_allocated memory, swap it, and | |
1231 | knit the symbol names into a normalized form. By normalized here I | |
1232 | mean that all symbols have an n_offset pointer that points to a null- | |
1233 | terminated string. */ | |
1234 | ||
1235 | combined_entry_type * | |
25057836 JL |
1236 | coff_get_normalized_symtab (abfd) |
1237 | bfd *abfd; | |
075caafd ILT |
1238 | { |
1239 | combined_entry_type *internal; | |
1240 | combined_entry_type *internal_ptr; | |
1241 | combined_entry_type *symbol_ptr; | |
1242 | combined_entry_type *internal_end; | |
1243 | bfd_size_type symesz; | |
1244 | PTR raw; | |
1245 | char *raw_src; | |
1246 | char *raw_end; | |
1247 | char *string_table = NULL; | |
1248 | char *debug_section = NULL; | |
1249 | unsigned long size; | |
1250 | ||
1251 | unsigned int raw_size; | |
1252 | if (obj_raw_syments(abfd) != (combined_entry_type *)NULL) { | |
1253 | return obj_raw_syments(abfd); | |
1254 | } | |
1255 | if ((size = bfd_get_symcount(abfd) * sizeof(combined_entry_type)) == 0) { | |
d1ad85a6 | 1256 | bfd_set_error (bfd_error_no_symbols); |
075caafd ILT |
1257 | return (NULL); |
1258 | } | |
1259 | ||
1260 | internal = (combined_entry_type *)bfd_alloc(abfd, size); | |
9783e04a DM |
1261 | if (!internal) |
1262 | { | |
d1ad85a6 | 1263 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
1264 | return NULL; |
1265 | } | |
075caafd ILT |
1266 | internal_end = internal + bfd_get_symcount(abfd); |
1267 | ||
1268 | symesz = bfd_coff_symesz (abfd); | |
1269 | raw_size = bfd_get_symcount(abfd) * symesz; | |
1270 | raw = bfd_alloc(abfd,raw_size); | |
9783e04a DM |
1271 | if (!raw) |
1272 | { | |
d1ad85a6 | 1273 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
1274 | return NULL; |
1275 | } | |
075caafd ILT |
1276 | |
1277 | if (bfd_seek(abfd, obj_sym_filepos(abfd), SEEK_SET) == -1 | |
25057836 | 1278 | || bfd_read(raw, raw_size, 1, abfd) != raw_size) |
075caafd | 1279 | return (NULL); |
075caafd ILT |
1280 | /* mark the end of the symbols */ |
1281 | raw_end = (char *) raw + bfd_get_symcount(abfd) * symesz; | |
1282 | /* | |
1283 | FIXME SOMEDAY. A string table size of zero is very weird, but | |
1284 | probably possible. If one shows up, it will probably kill us. | |
1285 | */ | |
1286 | ||
1287 | /* Swap all the raw entries */ | |
1288 | for (raw_src = (char *) raw, internal_ptr = internal; | |
1289 | raw_src < raw_end; | |
1290 | raw_src += symesz, internal_ptr++) { | |
1291 | ||
1292 | unsigned int i; | |
1293 | bfd_coff_swap_sym_in(abfd, (PTR)raw_src, (PTR)&internal_ptr->u.syment); | |
9783e04a | 1294 | internal_ptr->fix_value = 0; |
075caafd ILT |
1295 | internal_ptr->fix_tag = 0; |
1296 | internal_ptr->fix_end = 0; | |
9783e04a | 1297 | internal_ptr->fix_scnlen = 0; |
075caafd | 1298 | symbol_ptr = internal_ptr; |
85fe7cff | 1299 | |
075caafd ILT |
1300 | for (i = 0; |
1301 | i < symbol_ptr->u.syment.n_numaux; | |
1302 | i++) | |
1303 | { | |
1304 | internal_ptr++; | |
1305 | raw_src += symesz; | |
1306 | ||
9783e04a | 1307 | internal_ptr->fix_value = 0; |
075caafd ILT |
1308 | internal_ptr->fix_tag = 0; |
1309 | internal_ptr->fix_end = 0; | |
9783e04a | 1310 | internal_ptr->fix_scnlen = 0; |
075caafd ILT |
1311 | bfd_coff_swap_aux_in(abfd, (PTR) raw_src, |
1312 | symbol_ptr->u.syment.n_type, | |
1313 | symbol_ptr->u.syment.n_sclass, | |
330595d0 | 1314 | i, symbol_ptr->u.syment.n_numaux, |
075caafd ILT |
1315 | &(internal_ptr->u.auxent)); |
1316 | /* Remember that bal entries arn't pointerized */ | |
1317 | if (i != 1 || symbol_ptr->u.syment.n_sclass != C_LEAFPROC) | |
1318 | { | |
1319 | ||
1320 | coff_pointerize_aux(abfd, | |
1321 | internal, | |
1322 | symbol_ptr->u.syment.n_type, | |
1323 | symbol_ptr->u.syment.n_sclass, | |
1324 | internal_ptr); | |
1325 | } | |
1326 | ||
1327 | } | |
1328 | } | |
1329 | ||
1330 | /* Free all the raw stuff */ | |
1331 | bfd_release(abfd, raw); | |
1332 | ||
1333 | for (internal_ptr = internal; internal_ptr < internal_end; | |
1334 | internal_ptr ++) | |
1335 | { | |
1336 | if (internal_ptr->u.syment.n_sclass == C_FILE) { | |
1337 | /* make a file symbol point to the name in the auxent, since | |
1338 | the text ".file" is redundant */ | |
1339 | if ((internal_ptr+1)->u.auxent.x_file.x_n.x_zeroes == 0) { | |
1340 | /* the filename is a long one, point into the string table */ | |
1341 | if (string_table == NULL) { | |
1342 | string_table = build_string_table(abfd); | |
1343 | } | |
1344 | ||
1345 | internal_ptr->u.syment._n._n_n._n_offset = | |
e4b6b3e7 | 1346 | (long) (string_table - 4 + |
075caafd ILT |
1347 | (internal_ptr+1)->u.auxent.x_file.x_n.x_offset); |
1348 | } | |
1349 | else { | |
1350 | /* ordinary short filename, put into memory anyway */ | |
e4b6b3e7 | 1351 | internal_ptr->u.syment._n._n_n._n_offset = (long) |
075caafd ILT |
1352 | copy_name(abfd, (internal_ptr+1)->u.auxent.x_file.x_fname, |
1353 | FILNMLEN); | |
1354 | } | |
1355 | } | |
1356 | else { | |
1357 | if (internal_ptr->u.syment._n._n_n._n_zeroes != 0) { | |
1358 | /* This is a "short" name. Make it long. */ | |
1359 | unsigned long i = 0; | |
1360 | char *newstring = NULL; | |
1361 | ||
1362 | /* find the length of this string without walking into memory | |
1363 | that isn't ours. */ | |
1364 | for (i = 0; i < 8; ++i) { | |
1365 | if (internal_ptr->u.syment._n._n_name[i] == '\0') { | |
1366 | break; | |
1367 | } /* if end of string */ | |
1368 | } /* possible lengths of this string. */ | |
1369 | ||
1370 | if ((newstring = (PTR) bfd_alloc(abfd, ++i)) == NULL) { | |
d1ad85a6 | 1371 | bfd_set_error (bfd_error_no_memory); |
075caafd ILT |
1372 | return (NULL); |
1373 | } /* on error */ | |
1374 | memset(newstring, 0, i); | |
1375 | strncpy(newstring, internal_ptr->u.syment._n._n_name, i-1); | |
e4b6b3e7 | 1376 | internal_ptr->u.syment._n._n_n._n_offset = (long int) newstring; |
075caafd ILT |
1377 | internal_ptr->u.syment._n._n_n._n_zeroes = 0; |
1378 | } | |
9783e04a DM |
1379 | else if (internal_ptr->u.syment._n._n_n._n_offset == 0) |
1380 | internal_ptr->u.syment._n._n_n._n_offset = (long int) ""; | |
075caafd ILT |
1381 | else if (!bfd_coff_symname_in_debug(abfd, &internal_ptr->u.syment)) { |
1382 | /* Long name already. Point symbol at the string in the table. */ | |
1383 | if (string_table == NULL) { | |
1384 | string_table = build_string_table(abfd); | |
1385 | } | |
e4b6b3e7 | 1386 | internal_ptr->u.syment._n._n_n._n_offset = (long int) |
075caafd ILT |
1387 | (string_table - 4 + internal_ptr->u.syment._n._n_n._n_offset); |
1388 | } | |
1389 | else { | |
1390 | /* Long name in debug section. Very similar. */ | |
1391 | if (debug_section == NULL) { | |
1392 | debug_section = build_debug_section(abfd); | |
1393 | } | |
e4b6b3e7 | 1394 | internal_ptr->u.syment._n._n_n._n_offset = (long int) |
075caafd ILT |
1395 | (debug_section + internal_ptr->u.syment._n._n_n._n_offset); |
1396 | } | |
1397 | } | |
1398 | internal_ptr += internal_ptr->u.syment.n_numaux; | |
1399 | } | |
1400 | ||
1401 | obj_raw_syments(abfd) = internal; | |
85fe7cff | 1402 | obj_raw_syment_count(abfd) = internal_ptr - internal; |
075caafd ILT |
1403 | |
1404 | return (internal); | |
1405 | } /* coff_get_normalized_symtab() */ | |
1406 | ||
326e32d7 | 1407 | long |
25057836 JL |
1408 | coff_get_reloc_upper_bound (abfd, asect) |
1409 | bfd *abfd; | |
1410 | sec_ptr asect; | |
075caafd ILT |
1411 | { |
1412 | if (bfd_get_format(abfd) != bfd_object) { | |
d1ad85a6 | 1413 | bfd_set_error (bfd_error_invalid_operation); |
326e32d7 | 1414 | return -1; |
075caafd ILT |
1415 | } |
1416 | return (asect->reloc_count + 1) * sizeof(arelent *); | |
1417 | } | |
1418 | ||
1419 | asymbol * | |
25057836 JL |
1420 | coff_make_empty_symbol (abfd) |
1421 | bfd *abfd; | |
075caafd ILT |
1422 | { |
1423 | coff_symbol_type *new = (coff_symbol_type *) bfd_alloc(abfd, sizeof(coff_symbol_type)); | |
1424 | if (new == NULL) { | |
d1ad85a6 | 1425 | bfd_set_error (bfd_error_no_memory); |
075caafd ILT |
1426 | return (NULL); |
1427 | } /* on error */ | |
9783e04a | 1428 | memset (new, 0, sizeof *new); |
075caafd ILT |
1429 | new->symbol.section = 0; |
1430 | new->native = 0; | |
1431 | new->lineno = (alent *) NULL; | |
1432 | new->done_lineno = false; | |
1433 | new->symbol.the_bfd = abfd; | |
1434 | return &new->symbol; | |
1435 | } | |
1436 | ||
2d1e6c9c KR |
1437 | /* Make a debugging symbol. */ |
1438 | ||
075caafd | 1439 | asymbol * |
2d1e6c9c KR |
1440 | coff_bfd_make_debug_symbol (abfd, ptr, sz) |
1441 | bfd *abfd; | |
1442 | PTR ptr; | |
1443 | unsigned long sz; | |
075caafd ILT |
1444 | { |
1445 | coff_symbol_type *new = (coff_symbol_type *) bfd_alloc(abfd, sizeof(coff_symbol_type)); | |
1446 | if (new == NULL) { | |
d1ad85a6 | 1447 | bfd_set_error (bfd_error_no_memory); |
075caafd ILT |
1448 | return (NULL); |
1449 | } /* on error */ | |
1450 | /* @@ This shouldn't be using a constant multiplier. */ | |
1451 | new->native = (combined_entry_type *) bfd_zalloc (abfd, sizeof (combined_entry_type) * 10); | |
9783e04a DM |
1452 | if (!new->native) |
1453 | { | |
d1ad85a6 | 1454 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
1455 | return (NULL); |
1456 | } /* on error */ | |
075caafd ILT |
1457 | new->symbol.section = &bfd_debug_section; |
1458 | new->lineno = (alent *) NULL; | |
1459 | new->done_lineno = false; | |
1460 | new->symbol.the_bfd = abfd; | |
1461 | return &new->symbol; | |
1462 | } | |
1463 | ||
330595d0 | 1464 | /*ARGSUSED*/ |
2d1e6c9c KR |
1465 | void |
1466 | coff_get_symbol_info (abfd, symbol, ret) | |
1467 | bfd *abfd; | |
1468 | asymbol *symbol; | |
1469 | symbol_info *ret; | |
1470 | { | |
1471 | bfd_symbol_info (symbol, ret); | |
1472 | } | |
1473 | ||
e61cfdf8 ILT |
1474 | /* Print out information about COFF symbol. */ |
1475 | ||
075caafd | 1476 | void |
e61cfdf8 ILT |
1477 | coff_print_symbol (abfd, filep, symbol, how) |
1478 | bfd *abfd; | |
1479 | PTR filep; | |
1480 | asymbol *symbol; | |
1481 | bfd_print_symbol_type how; | |
075caafd | 1482 | { |
e61cfdf8 ILT |
1483 | FILE *file = (FILE *) filep; |
1484 | ||
1485 | switch (how) | |
1486 | { | |
075caafd | 1487 | case bfd_print_symbol_name: |
e61cfdf8 | 1488 | fprintf (file, "%s", symbol->name); |
075caafd | 1489 | break; |
e61cfdf8 | 1490 | |
075caafd | 1491 | case bfd_print_symbol_more: |
e61cfdf8 ILT |
1492 | fprintf (file, "coff %s %s", |
1493 | coffsymbol(symbol)->native ? "n" : "g", | |
1494 | coffsymbol(symbol)->lineno ? "l" : " "); | |
075caafd | 1495 | break; |
075caafd | 1496 | |
e61cfdf8 | 1497 | case bfd_print_symbol_all: |
075caafd | 1498 | if (coffsymbol(symbol)->native) |
075caafd | 1499 | { |
e61cfdf8 ILT |
1500 | unsigned int aux; |
1501 | combined_entry_type *combined = coffsymbol (symbol)->native; | |
1502 | combined_entry_type *root = obj_raw_syments (abfd); | |
1503 | struct lineno_cache_entry *l = coffsymbol(symbol)->lineno; | |
1504 | ||
1505 | fprintf (file,"[%3d]", combined - root); | |
1506 | ||
1507 | fprintf (file, | |
4c3721d5 | 1508 | "(sc %2d)(fl 0x%02x)(ty %3x)(sc %3d) (nx %d) 0x%08lx %s", |
e61cfdf8 ILT |
1509 | combined->u.syment.n_scnum, |
1510 | combined->u.syment.n_flags, | |
1511 | combined->u.syment.n_type, | |
1512 | combined->u.syment.n_sclass, | |
1513 | combined->u.syment.n_numaux, | |
4c3721d5 | 1514 | (unsigned long) combined->u.syment.n_value, |
e61cfdf8 ILT |
1515 | symbol->name); |
1516 | ||
1517 | for (aux = 0; aux < combined->u.syment.n_numaux; aux++) | |
1518 | { | |
1519 | combined_entry_type *auxp = combined + aux + 1; | |
1520 | long tagndx; | |
1521 | ||
1522 | if (auxp->fix_tag) | |
1523 | tagndx = auxp->u.auxent.x_sym.x_tagndx.p - root; | |
1524 | else | |
1525 | tagndx = auxp->u.auxent.x_sym.x_tagndx.l; | |
1526 | ||
1527 | fprintf (file, "\n"); | |
1528 | switch (combined->u.syment.n_sclass) | |
1529 | { | |
1530 | case C_FILE: | |
1531 | fprintf (file, "File "); | |
1532 | break; | |
1533 | default: | |
1534 | ||
4c3721d5 | 1535 | fprintf (file, "AUX lnno %d size 0x%x tagndx %ld", |
e61cfdf8 ILT |
1536 | auxp->u.auxent.x_sym.x_misc.x_lnsz.x_lnno, |
1537 | auxp->u.auxent.x_sym.x_misc.x_lnsz.x_size, | |
1538 | tagndx); | |
1539 | break; | |
1540 | } | |
075caafd | 1541 | } |
075caafd | 1542 | |
e61cfdf8 ILT |
1543 | if (l) |
1544 | { | |
e4b6b3e7 | 1545 | fprintf (file, "\n%s :", l->u.sym->name); |
e61cfdf8 ILT |
1546 | l++; |
1547 | while (l->line_number) | |
1548 | { | |
4c3721d5 ILT |
1549 | fprintf (file, "\n%4d : 0x%lx", |
1550 | l->line_number, | |
1551 | ((unsigned long) | |
1552 | (l->u.offset + symbol->section->vma))); | |
e61cfdf8 ILT |
1553 | l++; |
1554 | } | |
1555 | } | |
1556 | } | |
1557 | else | |
075caafd | 1558 | { |
e61cfdf8 ILT |
1559 | bfd_print_symbol_vandf ((PTR) file, symbol); |
1560 | fprintf (file, " %-5s %s %s %s", | |
1561 | symbol->section->name, | |
1562 | coffsymbol(symbol)->native ? "n" : "g", | |
1563 | coffsymbol(symbol)->lineno ? "l" : " ", | |
1564 | symbol->name); | |
075caafd | 1565 | } |
075caafd ILT |
1566 | } |
1567 | } | |
1568 | ||
1569 | /* Provided a BFD, a section and an offset into the section, calculate | |
1570 | and return the name of the source file and the line nearest to the | |
1571 | wanted location. */ | |
1572 | ||
330595d0 | 1573 | /*ARGSUSED*/ |
075caafd | 1574 | boolean |
25057836 JL |
1575 | coff_find_nearest_line (abfd, section, ignore_symbols, offset, filename_ptr, |
1576 | functionname_ptr, line_ptr) | |
1577 | bfd *abfd; | |
1578 | asection *section; | |
1579 | asymbol **ignore_symbols; | |
1580 | bfd_vma offset; | |
1581 | CONST char **filename_ptr; | |
1582 | CONST char **functionname_ptr; | |
1583 | unsigned int *line_ptr; | |
075caafd ILT |
1584 | { |
1585 | static bfd *cache_abfd; | |
1586 | static asection *cache_section; | |
1587 | static bfd_vma cache_offset; | |
1588 | static unsigned int cache_i; | |
85fe7cff PB |
1589 | static CONST char *cache_function; |
1590 | static unsigned int line_base = 0; | |
075caafd ILT |
1591 | |
1592 | unsigned int i = 0; | |
1593 | coff_data_type *cof = coff_data(abfd); | |
1594 | /* Run through the raw syments if available */ | |
1595 | combined_entry_type *p; | |
1596 | alent *l; | |
075caafd ILT |
1597 | |
1598 | ||
1599 | *filename_ptr = 0; | |
1600 | *functionname_ptr = 0; | |
1601 | *line_ptr = 0; | |
1602 | ||
1603 | /* Don't try and find line numbers in a non coff file */ | |
1604 | if (abfd->xvec->flavour != bfd_target_coff_flavour) | |
1605 | return false; | |
1606 | ||
1607 | if (cof == NULL) | |
1608 | return false; | |
1609 | ||
1610 | p = cof->raw_syments; | |
1611 | ||
1612 | for (i = 0; i < cof->raw_syment_count; i++) { | |
1613 | if (p->u.syment.n_sclass == C_FILE) { | |
1614 | /* File name has been moved into symbol */ | |
1615 | *filename_ptr = (char *) p->u.syment._n._n_n._n_offset; | |
1616 | break; | |
1617 | } | |
1618 | p += 1 + p->u.syment.n_numaux; | |
1619 | } | |
1620 | /* Now wander though the raw linenumbers of the section */ | |
1621 | /* | |
1622 | If this is the same BFD as we were previously called with and this is | |
1623 | the same section, and the offset we want is further down then we can | |
1624 | prime the lookup loop | |
1625 | */ | |
1626 | if (abfd == cache_abfd && | |
1627 | section == cache_section && | |
1628 | offset >= cache_offset) { | |
1629 | i = cache_i; | |
85fe7cff | 1630 | *functionname_ptr = cache_function; |
075caafd ILT |
1631 | } |
1632 | else { | |
1633 | i = 0; | |
075caafd | 1634 | } |
85fe7cff | 1635 | l = §ion->lineno[i]; |
075caafd ILT |
1636 | |
1637 | for (; i < section->lineno_count; i++) { | |
1638 | if (l->line_number == 0) { | |
1639 | /* Get the symbol this line number points at */ | |
1640 | coff_symbol_type *coff = (coff_symbol_type *) (l->u.sym); | |
85fe7cff PB |
1641 | if (coff->symbol.value > offset) |
1642 | break; | |
075caafd ILT |
1643 | *functionname_ptr = coff->symbol.name; |
1644 | if (coff->native) { | |
1645 | combined_entry_type *s = coff->native; | |
1646 | s = s + 1 + s->u.syment.n_numaux; | |
1647 | /* | |
1648 | S should now point to the .bf of the function | |
1649 | */ | |
1650 | if (s->u.syment.n_numaux) { | |
1651 | /* | |
1652 | The linenumber is stored in the auxent | |
1653 | */ | |
1654 | union internal_auxent *a = &((s + 1)->u.auxent); | |
1655 | line_base = a->x_sym.x_misc.x_lnsz.x_lnno; | |
85fe7cff | 1656 | *line_ptr = line_base; |
075caafd ILT |
1657 | } |
1658 | } | |
1659 | } | |
1660 | else { | |
1661 | if (l->u.offset > offset) | |
1662 | break; | |
85fe7cff | 1663 | *line_ptr = l->line_number + line_base - 1; |
075caafd ILT |
1664 | } |
1665 | l++; | |
1666 | } | |
1667 | ||
1668 | cache_abfd = abfd; | |
1669 | cache_section = section; | |
1670 | cache_offset = offset; | |
1671 | cache_i = i; | |
85fe7cff | 1672 | cache_function = *functionname_ptr; |
075caafd ILT |
1673 | |
1674 | return true; | |
1675 | } | |
1676 | ||
1677 | int | |
25057836 JL |
1678 | coff_sizeof_headers (abfd, reloc) |
1679 | bfd *abfd; | |
1680 | boolean reloc; | |
075caafd ILT |
1681 | { |
1682 | size_t size; | |
1683 | ||
1684 | if (reloc == false) { | |
1685 | size = bfd_coff_filhsz (abfd) + bfd_coff_aoutsz (abfd); | |
1686 | } | |
1687 | else { | |
1688 | size = bfd_coff_filhsz (abfd); | |
1689 | } | |
1690 | ||
1691 | size += abfd->section_count * bfd_coff_scnhsz (abfd); | |
1692 | return size; | |
1693 | } |