Commit | Line | Data |
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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, sac@cygnus.com. | |
22 | Split out of coffcode.h by Ian Taylor, ian@cygnus.com. */ | |
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 | ||
9fbe895a ILT |
54 | #define STRING_SIZE_SIZE (4) |
55 | ||
075caafd ILT |
56 | /* Take a section header read from a coff file (in HOST byte order), |
57 | and make a BFD "section" out of it. This is used by ECOFF. */ | |
58 | static boolean | |
25057836 JL |
59 | make_a_section_from_file (abfd, hdr, target_index) |
60 | bfd *abfd; | |
61 | struct internal_scnhdr *hdr; | |
62 | unsigned int target_index; | |
075caafd ILT |
63 | { |
64 | asection *return_section; | |
65 | char *name; | |
66 | ||
67 | /* Assorted wastage to null-terminate the name, thanks AT&T! */ | |
68 | name = bfd_alloc(abfd, sizeof (hdr->s_name)+1); | |
69 | if (name == NULL) { | |
d1ad85a6 | 70 | bfd_set_error (bfd_error_no_memory); |
075caafd ILT |
71 | return false; |
72 | } | |
73 | strncpy(name, (char *) &hdr->s_name[0], sizeof (hdr->s_name)); | |
74 | name[sizeof (hdr->s_name)] = 0; | |
75 | ||
76 | return_section = bfd_make_section(abfd, name); | |
77 | if (return_section == NULL) | |
78 | return_section = bfd_coff_make_section_hook (abfd, name); | |
4c3721d5 ILT |
79 | |
80 | /* Handle several sections of the same name. For example, if an executable | |
81 | has two .bss sections, GDB better be able to find both of them | |
82 | (PR 3562). */ | |
83 | if (return_section == NULL) | |
84 | return_section = bfd_make_section_anyway (abfd, name); | |
85 | ||
075caafd ILT |
86 | if (return_section == NULL) |
87 | return false; | |
88 | ||
89 | /* s_paddr is presumed to be = to s_vaddr */ | |
90 | ||
91 | return_section->vma = hdr->s_vaddr; | |
92 | return_section->_raw_size = hdr->s_size; | |
93 | return_section->filepos = hdr->s_scnptr; | |
94 | return_section->rel_filepos = hdr->s_relptr; | |
95 | return_section->reloc_count = hdr->s_nreloc; | |
96 | ||
97 | bfd_coff_set_alignment_hook (abfd, return_section, hdr); | |
98 | ||
99 | return_section->line_filepos = hdr->s_lnnoptr; | |
100 | ||
101 | return_section->lineno_count = hdr->s_nlnno; | |
102 | return_section->userdata = NULL; | |
103 | return_section->next = (asection *) NULL; | |
e8fbe6d9 | 104 | return_section->flags = bfd_coff_styp_to_sec_flags_hook (abfd, hdr, name); |
075caafd ILT |
105 | |
106 | return_section->target_index = target_index; | |
107 | ||
2d1e6c9c KR |
108 | /* At least on i386-coff, the line number count for a shared library |
109 | section must be ignored. */ | |
c16313f0 | 110 | if ((return_section->flags & SEC_COFF_SHARED_LIBRARY) != 0) |
2d1e6c9c KR |
111 | return_section->lineno_count = 0; |
112 | ||
075caafd ILT |
113 | if (hdr->s_nreloc != 0) |
114 | return_section->flags |= SEC_RELOC; | |
115 | /* FIXME: should this check 'hdr->s_size > 0' */ | |
116 | if (hdr->s_scnptr != 0) | |
117 | return_section->flags |= SEC_HAS_CONTENTS; | |
118 | return true; | |
119 | } | |
120 | ||
121 | /* Read in a COFF object and make it into a BFD. This is used by | |
122 | ECOFF as well. */ | |
123 | ||
2f3508ad | 124 | static const bfd_target * |
25057836 JL |
125 | coff_real_object_p (abfd, nscns, internal_f, internal_a) |
126 | bfd *abfd; | |
127 | unsigned nscns; | |
128 | struct internal_filehdr *internal_f; | |
129 | struct internal_aouthdr *internal_a; | |
075caafd ILT |
130 | { |
131 | PTR tdata; | |
132 | size_t readsize; /* length of file_info */ | |
133 | unsigned int scnhsz; | |
134 | char *external_sections; | |
135 | ||
136 | /* Build a play area */ | |
27f524a3 | 137 | tdata = bfd_coff_mkobject_hook (abfd, (PTR) internal_f, (PTR) internal_a); |
075caafd ILT |
138 | if (tdata == NULL) |
139 | return 0; | |
140 | ||
141 | scnhsz = bfd_coff_scnhsz (abfd); | |
142 | readsize = nscns * scnhsz; | |
143 | external_sections = (char *)bfd_alloc(abfd, readsize); | |
9783e04a DM |
144 | if (!external_sections) |
145 | { | |
d1ad85a6 | 146 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
147 | goto fail; |
148 | } | |
075caafd ILT |
149 | |
150 | if (bfd_read((PTR)external_sections, 1, readsize, abfd) != readsize) { | |
151 | goto fail; | |
152 | } | |
153 | ||
154 | /* Now copy data as required; construct all asections etc */ | |
155 | if (nscns != 0) { | |
156 | unsigned int i; | |
157 | for (i = 0; i < nscns; i++) { | |
158 | struct internal_scnhdr tmp; | |
159 | bfd_coff_swap_scnhdr_in(abfd, (PTR) (external_sections + i * scnhsz), | |
160 | (PTR) &tmp); | |
161 | make_a_section_from_file(abfd,&tmp, i+1); | |
162 | } | |
163 | } | |
164 | ||
165 | /* make_abs_section(abfd);*/ | |
166 | ||
167 | if (bfd_coff_set_arch_mach_hook (abfd, (PTR) internal_f) == false) | |
168 | goto fail; | |
169 | ||
170 | if (!(internal_f->f_flags & F_RELFLG)) | |
171 | abfd->flags |= HAS_RELOC; | |
172 | if ((internal_f->f_flags & F_EXEC)) | |
173 | abfd->flags |= EXEC_P; | |
174 | if (!(internal_f->f_flags & F_LNNO)) | |
175 | abfd->flags |= HAS_LINENO; | |
176 | if (!(internal_f->f_flags & F_LSYMS)) | |
177 | abfd->flags |= HAS_LOCALS; | |
178 | ||
2f3508ad ILT |
179 | /* FIXME: How can we set D_PAGED correctly? */ |
180 | if ((internal_f->f_flags & F_EXEC) != 0) | |
181 | abfd->flags |= D_PAGED; | |
075caafd | 182 | |
69645d10 | 183 | bfd_get_symcount(abfd) = internal_f->f_nsyms; |
075caafd ILT |
184 | if (internal_f->f_nsyms) |
185 | abfd->flags |= HAS_SYMS; | |
186 | ||
27f524a3 ILT |
187 | if (internal_a != (struct internal_aouthdr *) NULL) |
188 | bfd_get_start_address (abfd) = internal_a->entry; | |
189 | else | |
190 | bfd_get_start_address (abfd) = 0; | |
075caafd ILT |
191 | |
192 | return abfd->xvec; | |
193 | fail: | |
194 | bfd_release(abfd, tdata); | |
2f3508ad | 195 | return (const bfd_target *)NULL; |
075caafd ILT |
196 | } |
197 | ||
d1ad85a6 | 198 | /* Turn a COFF file into a BFD, but fail with bfd_error_wrong_format if it is |
075caafd ILT |
199 | not a COFF file. This is also used by ECOFF. */ |
200 | ||
2f3508ad | 201 | const bfd_target * |
25057836 JL |
202 | coff_object_p (abfd) |
203 | bfd *abfd; | |
075caafd ILT |
204 | { |
205 | unsigned int filhsz; | |
206 | unsigned int aoutsz; | |
207 | int nscns; | |
208 | PTR filehdr; | |
209 | struct internal_filehdr internal_f; | |
210 | struct internal_aouthdr internal_a; | |
211 | ||
075caafd ILT |
212 | /* figure out how much to read */ |
213 | filhsz = bfd_coff_filhsz (abfd); | |
214 | aoutsz = bfd_coff_aoutsz (abfd); | |
215 | ||
216 | filehdr = bfd_alloc (abfd, filhsz); | |
217 | if (filehdr == NULL) | |
218 | return 0; | |
219 | if (bfd_read(filehdr, 1, filhsz, abfd) != filhsz) | |
25057836 JL |
220 | { |
221 | if (bfd_get_error () != bfd_error_system_call) | |
222 | bfd_set_error (bfd_error_wrong_format); | |
223 | return 0; | |
224 | } | |
075caafd ILT |
225 | bfd_coff_swap_filehdr_in(abfd, filehdr, &internal_f); |
226 | bfd_release (abfd, filehdr); | |
227 | ||
228 | if (bfd_coff_bad_format_hook (abfd, &internal_f) == false) { | |
d1ad85a6 | 229 | bfd_set_error (bfd_error_wrong_format); |
075caafd ILT |
230 | return 0; |
231 | } | |
232 | nscns =internal_f.f_nscns; | |
233 | ||
234 | if (internal_f.f_opthdr) { | |
235 | PTR opthdr; | |
236 | ||
237 | opthdr = bfd_alloc (abfd, aoutsz); | |
238 | if (opthdr == NULL) | |
239 | return 0;; | |
240 | if (bfd_read(opthdr, 1,aoutsz, abfd) != aoutsz) { | |
241 | return 0; | |
242 | } | |
243 | bfd_coff_swap_aouthdr_in(abfd, opthdr, (PTR)&internal_a); | |
244 | } | |
245 | ||
246 | /* Seek past the opt hdr stuff */ | |
c16313f0 ILT |
247 | if (bfd_seek(abfd, (file_ptr) (internal_f.f_opthdr + filhsz), SEEK_SET) |
248 | != 0) | |
249 | return NULL; | |
075caafd | 250 | |
27f524a3 ILT |
251 | return coff_real_object_p(abfd, nscns, &internal_f, |
252 | (internal_f.f_opthdr != 0 | |
253 | ? &internal_a | |
254 | : (struct internal_aouthdr *) NULL)); | |
075caafd ILT |
255 | } |
256 | ||
257 | /* Get the BFD section from a COFF symbol section number. */ | |
258 | ||
e8fbe6d9 | 259 | asection * |
25057836 JL |
260 | coff_section_from_bfd_index (abfd, index) |
261 | bfd *abfd; | |
262 | int index; | |
075caafd ILT |
263 | { |
264 | struct sec *answer = abfd->sections; | |
265 | ||
266 | if (index == N_ABS) | |
267 | { | |
e8fbe6d9 | 268 | return bfd_abs_section_ptr; |
075caafd ILT |
269 | } |
270 | if (index == N_UNDEF) | |
271 | { | |
e8fbe6d9 | 272 | return bfd_und_section_ptr; |
075caafd ILT |
273 | } |
274 | if(index == N_DEBUG) | |
275 | { | |
276 | return &bfd_debug_section; | |
277 | ||
278 | } | |
279 | ||
280 | while (answer) { | |
281 | if (answer->target_index == index) | |
282 | return answer; | |
283 | answer = answer->next; | |
284 | } | |
c16313f0 ILT |
285 | |
286 | /* We should not reach this point, but the SCO 3.2v4 /lib/libc_s.a | |
287 | has a bad symbol table in biglitpow.o. */ | |
e8fbe6d9 | 288 | return bfd_und_section_ptr; |
075caafd ILT |
289 | } |
290 | ||
291 | /* Get the upper bound of a COFF symbol table. */ | |
292 | ||
326e32d7 | 293 | long |
075caafd ILT |
294 | coff_get_symtab_upper_bound(abfd) |
295 | bfd *abfd; | |
296 | { | |
297 | if (!bfd_coff_slurp_symbol_table(abfd)) | |
326e32d7 | 298 | return -1; |
075caafd ILT |
299 | |
300 | return (bfd_get_symcount(abfd) + 1) * (sizeof(coff_symbol_type *)); | |
301 | } | |
302 | ||
303 | ||
304 | /* Canonicalize a COFF symbol table. */ | |
305 | ||
326e32d7 | 306 | long |
25057836 JL |
307 | coff_get_symtab (abfd, alocation) |
308 | bfd *abfd; | |
309 | asymbol **alocation; | |
075caafd ILT |
310 | { |
311 | unsigned int counter = 0; | |
312 | coff_symbol_type *symbase; | |
313 | coff_symbol_type **location = (coff_symbol_type **) (alocation); | |
314 | if (!bfd_coff_slurp_symbol_table(abfd)) | |
326e32d7 | 315 | return -1; |
075caafd ILT |
316 | |
317 | symbase = obj_symbols(abfd); | |
318 | while (counter < bfd_get_symcount(abfd)) | |
319 | { | |
320 | /* This nasty code looks at the symbol to decide whether or | |
321 | not it is descibes a constructor/destructor entry point. It | |
322 | is structured this way to (hopefully) speed non matches */ | |
323 | #if 0 | |
324 | if (0 && symbase->symbol.name[9] == '$') | |
325 | { | |
326 | bfd_constructor_entry(abfd, | |
327 | (asymbol **)location, | |
328 | symbase->symbol.name[10] == 'I' ? | |
329 | "CTOR" : "DTOR"); | |
330 | } | |
331 | #endif | |
332 | *(location++) = symbase++; | |
333 | counter++; | |
334 | } | |
335 | *location++ = 0; | |
336 | return bfd_get_symcount(abfd); | |
337 | } | |
338 | ||
339 | /* Set lineno_count for the output sections of a COFF file. */ | |
340 | ||
27f524a3 | 341 | int |
25057836 | 342 | coff_count_linenumbers (abfd) |
69645d10 | 343 | bfd *abfd; |
075caafd | 344 | { |
69645d10 ILT |
345 | unsigned int limit = bfd_get_symcount(abfd); |
346 | unsigned int i; | |
27f524a3 | 347 | int total = 0; |
69645d10 ILT |
348 | asymbol **p; |
349 | asection *s; | |
350 | ||
351 | if (limit == 0) | |
352 | { | |
353 | /* This may be from the backend linker, in which case the | |
354 | lineno_count in the sections is correct. */ | |
355 | for (s = abfd->sections; s != NULL; s = s->next) | |
356 | total += s->lineno_count; | |
357 | return total; | |
358 | } | |
359 | ||
360 | for (s = abfd->sections; s != NULL; s = s->next) | |
361 | BFD_ASSERT (s->lineno_count == 0); | |
362 | ||
363 | for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) | |
364 | { | |
365 | asymbol *q_maybe = *p; | |
366 | ||
367 | if (bfd_asymbol_flavour (q_maybe) == bfd_target_coff_flavour) | |
368 | { | |
369 | coff_symbol_type *q = coffsymbol (q_maybe); | |
370 | ||
371 | if (q->lineno != NULL) | |
372 | { | |
373 | /* This symbol has line numbers. Increment the owning | |
374 | section's linenumber count. */ | |
375 | alent *l = q->lineno; | |
376 | ||
377 | ++q->symbol.section->output_section->lineno_count; | |
378 | ++total; | |
379 | ++l; | |
380 | while (l->line_number != 0) | |
381 | { | |
382 | ++total; | |
383 | ++q->symbol.section->output_section->lineno_count; | |
384 | ++l; | |
385 | } | |
386 | } | |
075caafd | 387 | } |
075caafd | 388 | } |
69645d10 | 389 | |
27f524a3 | 390 | return total; |
075caafd ILT |
391 | } |
392 | ||
393 | /* Takes a bfd and a symbol, returns a pointer to the coff specific | |
394 | area of the symbol if there is one. */ | |
395 | ||
330595d0 | 396 | /*ARGSUSED*/ |
075caafd | 397 | coff_symbol_type * |
25057836 JL |
398 | coff_symbol_from (ignore_abfd, symbol) |
399 | bfd *ignore_abfd; | |
400 | asymbol *symbol; | |
075caafd ILT |
401 | { |
402 | if (bfd_asymbol_flavour(symbol) != bfd_target_coff_flavour) | |
403 | return (coff_symbol_type *)NULL; | |
404 | ||
405 | if (bfd_asymbol_bfd(symbol)->tdata.coff_obj_data == (coff_data_type*)NULL) | |
406 | return (coff_symbol_type *)NULL; | |
407 | ||
408 | return (coff_symbol_type *) symbol; | |
409 | } | |
410 | ||
411 | static void | |
25057836 JL |
412 | fixup_symbol_value (coff_symbol_ptr, syment) |
413 | coff_symbol_type *coff_symbol_ptr; | |
414 | struct internal_syment *syment; | |
075caafd ILT |
415 | { |
416 | ||
417 | /* Normalize the symbol flags */ | |
e61cfdf8 | 418 | if (bfd_is_com_section (coff_symbol_ptr->symbol.section)) { |
075caafd ILT |
419 | /* a common symbol is undefined with a value */ |
420 | syment->n_scnum = N_UNDEF; | |
421 | syment->n_value = coff_symbol_ptr->symbol.value; | |
422 | } | |
423 | else if (coff_symbol_ptr->symbol.flags & BSF_DEBUGGING) { | |
424 | syment->n_value = coff_symbol_ptr->symbol.value; | |
425 | } | |
e8fbe6d9 | 426 | else if (bfd_is_und_section (coff_symbol_ptr->symbol.section)) { |
075caafd ILT |
427 | syment->n_scnum = N_UNDEF; |
428 | syment->n_value = 0; | |
429 | } | |
430 | else { | |
431 | if (coff_symbol_ptr->symbol.section) { | |
432 | syment->n_scnum = | |
433 | coff_symbol_ptr->symbol.section->output_section->target_index; | |
434 | ||
435 | syment->n_value = | |
436 | coff_symbol_ptr->symbol.value + | |
437 | coff_symbol_ptr->symbol.section->output_offset + | |
438 | coff_symbol_ptr->symbol.section->output_section->vma; | |
439 | } | |
440 | else { | |
441 | BFD_ASSERT(0); | |
442 | /* This can happen, but I don't know why yet (steve@cygnus.com) */ | |
443 | syment->n_scnum = N_ABS; | |
444 | syment->n_value = coff_symbol_ptr->symbol.value; | |
445 | } | |
446 | } | |
447 | } | |
448 | ||
449 | /* run through all the symbols in the symbol table and work out what | |
450 | their indexes into the symbol table will be when output | |
451 | ||
452 | Coff requires that each C_FILE symbol points to the next one in the | |
453 | chain, and that the last one points to the first external symbol. We | |
454 | do that here too. | |
455 | ||
456 | */ | |
9783e04a | 457 | boolean |
25057836 JL |
458 | coff_renumber_symbols (bfd_ptr) |
459 | bfd *bfd_ptr; | |
075caafd ILT |
460 | { |
461 | unsigned int symbol_count = bfd_get_symcount(bfd_ptr); | |
462 | asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols; | |
463 | unsigned int native_index = 0; | |
464 | struct internal_syment *last_file = (struct internal_syment *)NULL; | |
465 | unsigned int symbol_index; | |
466 | ||
467 | /* COFF demands that undefined symbols come after all other symbols. | |
468 | Since we don't need to impose this extra knowledge on all our client | |
469 | programs, deal with that here. Sort the symbol table; just move the | |
470 | undefined symbols to the end, leaving the rest alone. */ | |
471 | /* @@ Do we have some condition we could test for, so we don't always | |
472 | have to do this? I don't think relocatability is quite right, but | |
473 | I'm not certain. [raeburn:19920508.1711EST] */ | |
474 | { | |
475 | asymbol **newsyms; | |
476 | int i; | |
477 | ||
478 | newsyms = (asymbol **) bfd_alloc_by_size_t (bfd_ptr, | |
479 | sizeof (asymbol *) | |
480 | * (symbol_count + 1)); | |
9783e04a DM |
481 | if (!newsyms) |
482 | { | |
d1ad85a6 | 483 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
484 | return false; |
485 | } | |
075caafd ILT |
486 | bfd_ptr->outsymbols = newsyms; |
487 | for (i = 0; i < symbol_count; i++) | |
e8fbe6d9 | 488 | if (! bfd_is_und_section (symbol_ptr_ptr[i]->section)) |
075caafd ILT |
489 | *newsyms++ = symbol_ptr_ptr[i]; |
490 | for (i = 0; i < symbol_count; i++) | |
e8fbe6d9 | 491 | if (bfd_is_und_section (symbol_ptr_ptr[i]->section)) |
075caafd ILT |
492 | *newsyms++ = symbol_ptr_ptr[i]; |
493 | *newsyms = (asymbol *) NULL; | |
494 | symbol_ptr_ptr = bfd_ptr->outsymbols; | |
495 | } | |
496 | ||
497 | for (symbol_index = 0; symbol_index < symbol_count; symbol_index++) | |
498 | { | |
499 | coff_symbol_type *coff_symbol_ptr = coff_symbol_from(bfd_ptr, symbol_ptr_ptr[symbol_index]); | |
500 | if (coff_symbol_ptr && coff_symbol_ptr->native) { | |
501 | combined_entry_type *s = coff_symbol_ptr->native; | |
502 | int i; | |
503 | ||
504 | if (s->u.syment.n_sclass == C_FILE) | |
505 | { | |
506 | if (last_file != (struct internal_syment *)NULL) { | |
507 | last_file->n_value = native_index; | |
508 | } | |
509 | last_file = &(s->u.syment); | |
510 | } | |
511 | else { | |
512 | ||
513 | /* Modify the symbol values according to their section and | |
514 | type */ | |
515 | ||
516 | fixup_symbol_value(coff_symbol_ptr, &(s->u.syment)); | |
517 | } | |
518 | for (i = 0; i < s->u.syment.n_numaux + 1; i++) { | |
519 | s[i].offset = native_index ++; | |
520 | } | |
521 | } | |
522 | else { | |
523 | native_index++; | |
524 | } | |
525 | } | |
526 | obj_conv_table_size (bfd_ptr) = native_index; | |
9783e04a | 527 | return true; |
075caafd ILT |
528 | } |
529 | ||
530 | /* | |
531 | Run thorough the symbol table again, and fix it so that all pointers to | |
532 | entries are changed to the entries' index in the output symbol table. | |
533 | ||
534 | */ | |
535 | void | |
9783e04a DM |
536 | coff_mangle_symbols (bfd_ptr) |
537 | bfd *bfd_ptr; | |
075caafd | 538 | { |
9783e04a | 539 | unsigned int symbol_count = bfd_get_symcount (bfd_ptr); |
075caafd ILT |
540 | asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols; |
541 | unsigned int symbol_index; | |
542 | ||
543 | for (symbol_index = 0; symbol_index < symbol_count; symbol_index++) | |
9783e04a DM |
544 | { |
545 | coff_symbol_type *coff_symbol_ptr = | |
546 | coff_symbol_from (bfd_ptr, symbol_ptr_ptr[symbol_index]); | |
075caafd | 547 | |
9783e04a DM |
548 | if (coff_symbol_ptr && coff_symbol_ptr->native) |
549 | { | |
075caafd ILT |
550 | int i; |
551 | combined_entry_type *s = coff_symbol_ptr->native; | |
552 | ||
9783e04a DM |
553 | if (s->fix_value) |
554 | { | |
555 | /* FIXME: We should use a union here. */ | |
556 | s->u.syment.n_value = | |
557 | ((combined_entry_type *) s->u.syment.n_value)->offset; | |
558 | s->fix_value = 0; | |
075caafd | 559 | } |
9783e04a DM |
560 | for (i = 0; i < s->u.syment.n_numaux ; i++) |
561 | { | |
562 | combined_entry_type *a = s + i + 1; | |
563 | if (a->fix_tag) | |
564 | { | |
565 | a->u.auxent.x_sym.x_tagndx.l = | |
566 | a->u.auxent.x_sym.x_tagndx.p->offset; | |
567 | a->fix_tag = 0; | |
568 | } | |
569 | if (a->fix_end) | |
570 | { | |
571 | a->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l = | |
572 | a->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p->offset; | |
573 | a->fix_end = 0; | |
574 | } | |
575 | if (a->fix_scnlen) | |
576 | { | |
577 | a->u.auxent.x_csect.x_scnlen.l = | |
578 | a->u.auxent.x_csect.x_scnlen.p->offset; | |
579 | a->fix_scnlen = 0; | |
580 | } | |
075caafd | 581 | } |
075caafd | 582 | } |
9783e04a | 583 | } |
075caafd ILT |
584 | } |
585 | ||
9783e04a DM |
586 | static bfd_size_type string_size; |
587 | static bfd_size_type debug_string_size; | |
588 | static asection *debug_string_section; | |
075caafd ILT |
589 | |
590 | static void | |
25057836 JL |
591 | coff_fix_symbol_name (abfd, symbol, native) |
592 | bfd *abfd; | |
593 | asymbol *symbol; | |
594 | combined_entry_type *native; | |
075caafd ILT |
595 | { |
596 | unsigned int name_length; | |
597 | union internal_auxent *auxent; | |
598 | char * name = ( char *)(symbol->name); | |
599 | ||
600 | if (name == (char *) NULL) { | |
601 | /* coff symbols always have names, so we'll make one up */ | |
602 | symbol->name = "strange"; | |
603 | name = (char *)symbol->name; | |
604 | } | |
605 | name_length = strlen(name); | |
606 | ||
607 | if (native->u.syment.n_sclass == C_FILE) { | |
608 | strncpy(native->u.syment._n._n_name, ".file", SYMNMLEN); | |
609 | auxent = &(native+1)->u.auxent; | |
610 | ||
611 | if (bfd_coff_long_filenames (abfd)) { | |
612 | if (name_length <= FILNMLEN) { | |
613 | strncpy(auxent->x_file.x_fname, name, FILNMLEN); | |
614 | } | |
615 | else { | |
9fbe895a | 616 | auxent->x_file.x_n.x_offset = string_size + STRING_SIZE_SIZE; |
075caafd ILT |
617 | auxent->x_file.x_n.x_zeroes = 0; |
618 | string_size += name_length + 1; | |
619 | } | |
620 | } | |
621 | else { | |
622 | strncpy(auxent->x_file.x_fname, name, FILNMLEN); | |
623 | if (name_length > FILNMLEN) { | |
624 | name[FILNMLEN] = '\0'; | |
625 | } | |
626 | } | |
627 | } | |
628 | else | |
9783e04a DM |
629 | { /* NOT A C_FILE SYMBOL */ |
630 | if (name_length <= SYMNMLEN) | |
631 | { | |
075caafd ILT |
632 | /* This name will fit into the symbol neatly */ |
633 | strncpy(native->u.syment._n._n_name, symbol->name, SYMNMLEN); | |
634 | } | |
9783e04a DM |
635 | else if (! bfd_coff_symname_in_debug (abfd, &native->u.syment)) |
636 | { | |
9fbe895a | 637 | native->u.syment._n._n_n._n_offset = string_size + STRING_SIZE_SIZE; |
075caafd ILT |
638 | native->u.syment._n._n_n._n_zeroes = 0; |
639 | string_size += name_length + 1; | |
640 | } | |
9783e04a DM |
641 | else |
642 | { | |
643 | long filepos; | |
644 | bfd_byte buf[2]; | |
645 | ||
646 | /* This name should be written into the .debug section. For | |
647 | some reason each name is preceded by a two byte length | |
648 | and also followed by a null byte. FIXME: We assume that | |
649 | the .debug section has already been created, and that it | |
650 | is large enough. */ | |
651 | if (debug_string_section == (asection *) NULL) | |
652 | debug_string_section = bfd_get_section_by_name (abfd, ".debug"); | |
653 | filepos = bfd_tell (abfd); | |
654 | bfd_put_16 (abfd, name_length + 1, buf); | |
655 | if (! bfd_set_section_contents (abfd, | |
656 | debug_string_section, | |
657 | (PTR) buf, | |
658 | (file_ptr) debug_string_size, | |
659 | (bfd_size_type) 2) | |
660 | || ! bfd_set_section_contents (abfd, | |
661 | debug_string_section, | |
662 | (PTR) symbol->name, | |
663 | (file_ptr) debug_string_size + 2, | |
664 | (bfd_size_type) name_length + 1)) | |
665 | abort (); | |
666 | if (bfd_seek (abfd, filepos, SEEK_SET) != 0) | |
667 | abort (); | |
668 | native->u.syment._n._n_n._n_offset = debug_string_size + 2; | |
669 | native->u.syment._n._n_n._n_zeroes = 0; | |
670 | debug_string_size += name_length + 3; | |
671 | } | |
672 | } | |
075caafd ILT |
673 | } |
674 | ||
bfe8224f ILT |
675 | /* We need to keep track of the symbol index so that when we write out |
676 | the relocs we can get the index for a symbol. This method is a | |
677 | hack. FIXME. */ | |
678 | ||
679 | #define set_index(symbol, idx) ((symbol)->udata = (PTR) (idx)) | |
680 | ||
681 | /* Write a symbol out to a COFF file. */ | |
075caafd | 682 | |
bfe8224f | 683 | static boolean |
25057836 JL |
684 | coff_write_symbol (abfd, symbol, native, written) |
685 | bfd *abfd; | |
686 | asymbol *symbol; | |
687 | combined_entry_type *native; | |
bfe8224f | 688 | unsigned int *written; |
075caafd | 689 | { |
bfe8224f ILT |
690 | unsigned int numaux = native->u.syment.n_numaux; |
691 | int type = native->u.syment.n_type; | |
692 | int class = native->u.syment.n_sclass; | |
075caafd ILT |
693 | PTR buf; |
694 | bfd_size_type symesz; | |
695 | ||
bfe8224f ILT |
696 | /* @@ bfd_debug_section isn't accessible outside this file, but we |
697 | know that C_FILE symbols belong there. So move them. */ | |
075caafd ILT |
698 | if (native->u.syment.n_sclass == C_FILE) |
699 | symbol->section = &bfd_debug_section; | |
700 | ||
e8fbe6d9 | 701 | if (bfd_is_abs_section (symbol->section)) |
bfe8224f ILT |
702 | { |
703 | native->u.syment.n_scnum = N_ABS; | |
704 | } | |
075caafd | 705 | else if (symbol->section == &bfd_debug_section) |
bfe8224f ILT |
706 | { |
707 | native->u.syment.n_scnum = N_DEBUG; | |
708 | } | |
e8fbe6d9 | 709 | else if (bfd_is_und_section (symbol->section)) |
bfe8224f ILT |
710 | { |
711 | native->u.syment.n_scnum = N_UNDEF; | |
712 | } | |
075caafd | 713 | else |
bfe8224f ILT |
714 | { |
715 | native->u.syment.n_scnum = | |
716 | symbol->section->output_section->target_index; | |
717 | } | |
075caafd | 718 | |
bfe8224f | 719 | coff_fix_symbol_name (abfd, symbol, native); |
075caafd ILT |
720 | |
721 | symesz = bfd_coff_symesz (abfd); | |
722 | buf = bfd_alloc (abfd, symesz); | |
9783e04a DM |
723 | if (!buf) |
724 | { | |
d1ad85a6 | 725 | bfd_set_error (bfd_error_no_memory); |
bfe8224f | 726 | return false; |
9783e04a | 727 | } |
bfe8224f ILT |
728 | bfd_coff_swap_sym_out (abfd, &native->u.syment, buf); |
729 | if (bfd_write (buf, 1, symesz, abfd) != symesz) | |
730 | return false; | |
075caafd ILT |
731 | bfd_release (abfd, buf); |
732 | ||
733 | if (native->u.syment.n_numaux > 0) | |
734 | { | |
735 | bfd_size_type auxesz; | |
736 | unsigned int j; | |
737 | ||
738 | auxesz = bfd_coff_auxesz (abfd); | |
739 | buf = bfd_alloc (abfd, auxesz); | |
9783e04a DM |
740 | if (!buf) |
741 | { | |
d1ad85a6 | 742 | bfd_set_error (bfd_error_no_memory); |
bfe8224f | 743 | return false; |
9783e04a | 744 | } |
075caafd ILT |
745 | for (j = 0; j < native->u.syment.n_numaux; j++) |
746 | { | |
bfe8224f ILT |
747 | bfd_coff_swap_aux_out (abfd, |
748 | &((native + j + 1)->u.auxent), | |
749 | type, | |
750 | class, | |
751 | j, | |
752 | native->u.syment.n_numaux, | |
753 | buf); | |
754 | if (bfd_write (buf, 1, auxesz, abfd)!= auxesz) | |
755 | return false; | |
075caafd ILT |
756 | } |
757 | bfd_release (abfd, buf); | |
758 | } | |
bfe8224f ILT |
759 | |
760 | /* Store the index for use when we write out the relocs. */ | |
761 | set_index (symbol, *written); | |
762 | ||
763 | *written += numaux + 1; | |
764 | return true; | |
075caafd ILT |
765 | } |
766 | ||
bfe8224f ILT |
767 | /* Write out a symbol to a COFF file that does not come from a COFF |
768 | file originally. This symbol may have been created by the linker, | |
769 | or we may be linking a non COFF file to a COFF file. */ | |
075caafd | 770 | |
bfe8224f | 771 | static boolean |
25057836 JL |
772 | coff_write_alien_symbol (abfd, symbol, written) |
773 | bfd *abfd; | |
774 | asymbol *symbol; | |
bfe8224f | 775 | unsigned int *written; |
075caafd | 776 | { |
075caafd ILT |
777 | combined_entry_type *native; |
778 | combined_entry_type dummy; | |
bfe8224f | 779 | |
075caafd ILT |
780 | native = &dummy; |
781 | native->u.syment.n_type = T_NULL; | |
782 | native->u.syment.n_flags = 0; | |
e8fbe6d9 | 783 | if (bfd_is_und_section (symbol->section)) |
bfe8224f ILT |
784 | { |
785 | native->u.syment.n_scnum = N_UNDEF; | |
786 | native->u.syment.n_value = symbol->value; | |
075caafd | 787 | } |
e61cfdf8 | 788 | else if (bfd_is_com_section (symbol->section)) |
bfe8224f ILT |
789 | { |
790 | native->u.syment.n_scnum = N_UNDEF; | |
791 | native->u.syment.n_value = symbol->value; | |
075caafd | 792 | } |
bfe8224f | 793 | else if (symbol->flags & BSF_DEBUGGING) |
075caafd | 794 | { |
a74d1517 ILT |
795 | /* There isn't much point to writing out a debugging symbol |
796 | unless we are prepared to convert it into COFF debugging | |
715cde57 ILT |
797 | format. So, we just ignore them. We must clobber the symbol |
798 | name to keep it from being put in the string table. */ | |
799 | symbol->name = ""; | |
a74d1517 | 800 | return true; |
075caafd | 801 | } |
bfe8224f ILT |
802 | else |
803 | { | |
804 | native->u.syment.n_scnum = | |
805 | symbol->section->output_section->target_index; | |
806 | native->u.syment.n_value = (symbol->value | |
807 | + symbol->section->output_section->vma | |
808 | + symbol->section->output_offset); | |
809 | ||
810 | /* Copy the any flags from the the file header into the symbol. | |
811 | FIXME: Why? */ | |
812 | { | |
813 | coff_symbol_type *c = coff_symbol_from (abfd, symbol); | |
814 | if (c != (coff_symbol_type *) NULL) | |
815 | native->u.syment.n_flags = bfd_asymbol_bfd (&c->symbol)->flags; | |
816 | } | |
075caafd ILT |
817 | } |
818 | ||
bfe8224f | 819 | native->u.syment.n_type = 0; |
075caafd | 820 | if (symbol->flags & BSF_LOCAL) |
bfe8224f | 821 | native->u.syment.n_sclass = C_STAT; |
075caafd | 822 | else |
bfe8224f ILT |
823 | native->u.syment.n_sclass = C_EXT; |
824 | native->u.syment.n_numaux = 0; | |
075caafd | 825 | |
bfe8224f | 826 | return coff_write_symbol (abfd, symbol, native, written); |
075caafd ILT |
827 | } |
828 | ||
bfe8224f ILT |
829 | /* Write a native symbol to a COFF file. */ |
830 | ||
831 | static boolean | |
25057836 JL |
832 | coff_write_native_symbol (abfd, symbol, written) |
833 | bfd *abfd; | |
834 | coff_symbol_type *symbol; | |
bfe8224f | 835 | unsigned int *written; |
075caafd | 836 | { |
075caafd | 837 | combined_entry_type *native = symbol->native; |
bfe8224f | 838 | alent *lineno = symbol->lineno; |
075caafd | 839 | |
bfe8224f ILT |
840 | /* If this symbol has an associated line number, we must store the |
841 | symbol index in the line number field. We also tag the auxent to | |
842 | point to the right place in the lineno table. */ | |
843 | if (lineno && !symbol->done_lineno) | |
844 | { | |
845 | unsigned int count = 0; | |
846 | lineno[count].u.offset = *written; | |
847 | if (native->u.syment.n_numaux) | |
848 | { | |
849 | union internal_auxent *a = &((native+1)->u.auxent); | |
075caafd | 850 | |
bfe8224f ILT |
851 | a->x_sym.x_fcnary.x_fcn.x_lnnoptr = |
852 | symbol->symbol.section->output_section->moving_line_filepos; | |
853 | } | |
075caafd | 854 | |
bfe8224f ILT |
855 | /* Count and relocate all other linenumbers. */ |
856 | count++; | |
857 | while (lineno[count].line_number != 0) | |
858 | { | |
075caafd | 859 | #if 0 |
bfe8224f ILT |
860 | /* 13 april 92. sac |
861 | I've been told this, but still need proof: | |
862 | > The second bug is also in `bfd/coffcode.h'. This bug | |
863 | > causes the linker to screw up the pc-relocations for | |
864 | > all the line numbers in COFF code. This bug isn't only | |
865 | > specific to A29K implementations, but affects all | |
866 | > systems using COFF format binaries. Note that in COFF | |
867 | > object files, the line number core offsets output by | |
868 | > the assembler are relative to the start of each | |
869 | > procedure, not to the start of the .text section. This | |
870 | > patch relocates the line numbers relative to the | |
871 | > `native->u.syment.n_value' instead of the section | |
872 | > virtual address. | |
873 | > modular!olson@cs.arizona.edu (Jon Olson) | |
874 | */ | |
875 | lineno[count].u.offset += native->u.syment.n_value; | |
075caafd | 876 | #else |
bfe8224f ILT |
877 | lineno[count].u.offset += |
878 | (symbol->symbol.section->output_section->vma | |
879 | + symbol->symbol.section->output_offset); | |
075caafd | 880 | #endif |
bfe8224f ILT |
881 | count++; |
882 | } | |
883 | symbol->done_lineno = true; | |
075caafd | 884 | |
bfe8224f ILT |
885 | symbol->symbol.section->output_section->moving_line_filepos += |
886 | count * bfd_coff_linesz (abfd); | |
887 | } | |
888 | ||
889 | return coff_write_symbol (abfd, &(symbol->symbol), native, written); | |
075caafd ILT |
890 | } |
891 | ||
bfe8224f ILT |
892 | /* Write out the COFF symbols. */ |
893 | ||
894 | boolean | |
25057836 | 895 | coff_write_symbols (abfd) |
bfe8224f | 896 | bfd *abfd; |
075caafd | 897 | { |
bfe8224f ILT |
898 | unsigned int i; |
899 | unsigned int limit = bfd_get_symcount(abfd); | |
900 | unsigned int written = 0; | |
901 | asymbol **p; | |
075caafd ILT |
902 | |
903 | string_size = 0; | |
9783e04a | 904 | debug_string_size = 0; |
075caafd ILT |
905 | |
906 | /* Seek to the right place */ | |
bfe8224f ILT |
907 | if (bfd_seek (abfd, obj_sym_filepos(abfd), SEEK_SET) != 0) |
908 | return false; | |
075caafd ILT |
909 | |
910 | /* Output all the symbols we have */ | |
911 | ||
912 | written = 0; | |
913 | for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) | |
bfe8224f ILT |
914 | { |
915 | asymbol *symbol = *p; | |
916 | coff_symbol_type *c_symbol = coff_symbol_from (abfd, symbol); | |
075caafd | 917 | |
bfe8224f ILT |
918 | if (c_symbol == (coff_symbol_type *) NULL |
919 | || c_symbol->native == (combined_entry_type *)NULL) | |
920 | { | |
921 | if (! coff_write_alien_symbol (abfd, symbol, &written)) | |
922 | return false; | |
923 | } | |
924 | else | |
925 | { | |
926 | if (! coff_write_native_symbol (abfd, c_symbol, &written)) | |
927 | return false; | |
928 | } | |
929 | } | |
075caafd | 930 | |
075caafd ILT |
931 | /* Now write out strings */ |
932 | ||
933 | if (string_size != 0) | |
934 | { | |
9fbe895a ILT |
935 | unsigned int size = string_size + STRING_SIZE_SIZE; |
936 | bfd_byte buffer[STRING_SIZE_SIZE]; | |
075caafd | 937 | |
9fbe895a | 938 | #if STRING_SIZE_SIZE == 4 |
bfe8224f | 939 | bfd_h_put_32 (abfd, size, buffer); |
9fbe895a ILT |
940 | #else |
941 | #error Change bfd_h_put_32 | |
942 | #endif | |
c16313f0 ILT |
943 | if (bfd_write ((PTR) buffer, 1, sizeof (buffer), abfd) != sizeof (buffer)) |
944 | return false; | |
075caafd ILT |
945 | for (p = abfd->outsymbols, i = 0; |
946 | i < limit; | |
947 | i++, p++) | |
bfe8224f ILT |
948 | { |
949 | asymbol *q = *p; | |
950 | size_t name_length = strlen (q->name); | |
951 | coff_symbol_type *c_symbol = coff_symbol_from (abfd, q); | |
952 | size_t maxlen; | |
953 | ||
954 | /* Figure out whether the symbol name should go in the string | |
955 | table. Symbol names that are short enough are stored | |
956 | directly in the syment structure. File names permit a | |
957 | different, longer, length in the syment structure. On | |
958 | XCOFF, some symbol names are stored in the .debug section | |
959 | rather than in the string table. */ | |
960 | ||
961 | if (c_symbol == NULL | |
962 | || c_symbol->native == NULL) | |
963 | { | |
964 | /* This is not a COFF symbol, so it certainly is not a | |
965 | file name, nor does it go in the .debug section. */ | |
966 | maxlen = SYMNMLEN; | |
967 | } | |
968 | else if (bfd_coff_symname_in_debug (abfd, | |
969 | &c_symbol->native->u.syment)) | |
970 | { | |
971 | /* This symbol name is in the XCOFF .debug section. | |
972 | Don't write it into the string table. */ | |
973 | maxlen = name_length; | |
974 | } | |
975 | else if (c_symbol->native->u.syment.n_sclass == C_FILE) | |
976 | maxlen = FILNMLEN; | |
977 | else | |
978 | maxlen = SYMNMLEN; | |
979 | ||
980 | if (name_length > maxlen) | |
981 | { | |
982 | if (bfd_write ((PTR) (q->name), 1, name_length + 1, abfd) | |
983 | != name_length + 1) | |
984 | return false; | |
985 | } | |
986 | } | |
075caafd | 987 | } |
bfe8224f ILT |
988 | else |
989 | { | |
990 | /* We would normally not write anything here, but we'll write | |
991 | out 4 so that any stupid coff reader which tries to read the | |
992 | string table even when there isn't one won't croak. */ | |
9fbe895a ILT |
993 | unsigned int size = STRING_SIZE_SIZE; |
994 | bfd_byte buffer[STRING_SIZE_SIZE]; | |
bfe8224f | 995 | |
9fbe895a | 996 | #if STRING_SIZE_SIZE == 4 |
bfe8224f | 997 | bfd_h_put_32 (abfd, size, buffer); |
9fbe895a ILT |
998 | #else |
999 | #error Change bfd_h_put_32 | |
1000 | #endif | |
1001 | if (bfd_write ((PTR) buffer, 1, STRING_SIZE_SIZE, abfd) | |
1002 | != STRING_SIZE_SIZE) | |
bfe8224f ILT |
1003 | return false; |
1004 | } | |
9783e04a | 1005 | |
bfe8224f ILT |
1006 | /* Make sure the .debug section was created to be the correct size. |
1007 | We should create it ourselves on the fly, but we don't because | |
1008 | BFD won't let us write to any section until we know how large all | |
1009 | the sections are. We could still do it by making another pass | |
1010 | over the symbols. FIXME. */ | |
9783e04a DM |
1011 | BFD_ASSERT (debug_string_size == 0 |
1012 | || (debug_string_section != (asection *) NULL | |
1013 | && (BFD_ALIGN (debug_string_size, | |
1014 | 1 << debug_string_section->alignment_power) | |
1015 | == bfd_section_size (abfd, debug_string_section)))); | |
bfe8224f ILT |
1016 | |
1017 | return true; | |
075caafd ILT |
1018 | } |
1019 | ||
9783e04a | 1020 | boolean |
25057836 JL |
1021 | coff_write_linenumbers (abfd) |
1022 | bfd *abfd; | |
075caafd ILT |
1023 | { |
1024 | asection *s; | |
1025 | bfd_size_type linesz; | |
1026 | PTR buff; | |
1027 | ||
1028 | linesz = bfd_coff_linesz (abfd); | |
1029 | buff = bfd_alloc (abfd, linesz); | |
9783e04a DM |
1030 | if (!buff) |
1031 | { | |
d1ad85a6 | 1032 | bfd_set_error (bfd_error_no_memory); |
25057836 | 1033 | return false; |
9783e04a | 1034 | } |
075caafd ILT |
1035 | for (s = abfd->sections; s != (asection *) NULL; s = s->next) { |
1036 | if (s->lineno_count) { | |
1037 | asymbol **q = abfd->outsymbols; | |
c16313f0 ILT |
1038 | if (bfd_seek(abfd, s->line_filepos, SEEK_SET) != 0) |
1039 | return false; | |
075caafd ILT |
1040 | /* Find all the linenumbers in this section */ |
1041 | while (*q) { | |
1042 | asymbol *p = *q; | |
27f524a3 ILT |
1043 | if (p->section->output_section == s) { |
1044 | alent *l = | |
1045 | BFD_SEND(bfd_asymbol_bfd(p), _get_lineno, (bfd_asymbol_bfd(p), p)); | |
1046 | if (l) { | |
1047 | /* Found a linenumber entry, output */ | |
1048 | struct internal_lineno out; | |
1049 | memset( (PTR)&out, 0, sizeof(out)); | |
1050 | out.l_lnno = 0; | |
075caafd ILT |
1051 | out.l_addr.l_symndx = l->u.offset; |
1052 | bfd_coff_swap_lineno_out(abfd, &out, buff); | |
c16313f0 ILT |
1053 | if (bfd_write(buff, 1, linesz, abfd) != linesz) |
1054 | return false; | |
075caafd | 1055 | l++; |
27f524a3 ILT |
1056 | while (l->line_number) { |
1057 | out.l_lnno = l->line_number; | |
1058 | out.l_addr.l_symndx = l->u.offset; | |
1059 | bfd_coff_swap_lineno_out(abfd, &out, buff); | |
c16313f0 ILT |
1060 | if (bfd_write(buff, 1, linesz, abfd) != linesz) |
1061 | return false; | |
27f524a3 ILT |
1062 | l++; |
1063 | } | |
075caafd ILT |
1064 | } |
1065 | } | |
1066 | q++; | |
1067 | } | |
1068 | } | |
1069 | } | |
1070 | bfd_release (abfd, buff); | |
9783e04a | 1071 | return true; |
075caafd ILT |
1072 | } |
1073 | ||
330595d0 | 1074 | /*ARGSUSED*/ |
075caafd | 1075 | alent * |
25057836 JL |
1076 | coff_get_lineno (ignore_abfd, symbol) |
1077 | bfd *ignore_abfd; | |
1078 | asymbol *symbol; | |
075caafd ILT |
1079 | { |
1080 | return coffsymbol(symbol)->lineno; | |
1081 | } | |
1082 | ||
1083 | asymbol * | |
1084 | coff_section_symbol (abfd, name) | |
1085 | bfd *abfd; | |
1086 | char *name; | |
1087 | { | |
1088 | asection *sec = bfd_make_section_old_way (abfd, name); | |
1089 | asymbol *sym; | |
1090 | combined_entry_type *csym; | |
1091 | ||
1092 | sym = sec->symbol; | |
4c3721d5 | 1093 | csym = coff_symbol_from (abfd, sym)->native; |
075caafd ILT |
1094 | /* Make sure back-end COFF stuff is there. */ |
1095 | if (csym == 0) | |
1096 | { | |
1097 | struct foo { | |
1098 | coff_symbol_type sym; | |
1099 | /* @@FIXME This shouldn't use a fixed size!! */ | |
1100 | combined_entry_type e[10]; | |
1101 | }; | |
1102 | struct foo *f; | |
1103 | f = (struct foo *) bfd_alloc_by_size_t (abfd, sizeof (*f)); | |
9783e04a DM |
1104 | if (!f) |
1105 | { | |
d1ad85a6 | 1106 | bfd_set_error (bfd_error_no_error); |
9783e04a DM |
1107 | return NULL; |
1108 | } | |
075caafd ILT |
1109 | memset ((char *) f, 0, sizeof (*f)); |
1110 | coff_symbol_from (abfd, sym)->native = csym = f->e; | |
1111 | } | |
1112 | csym[0].u.syment.n_sclass = C_STAT; | |
1113 | csym[0].u.syment.n_numaux = 1; | |
1114 | /* SF_SET_STATICS (sym); @@ ??? */ | |
4c3721d5 ILT |
1115 | csym[1].u.auxent.x_scn.x_scnlen = sec->_raw_size; |
1116 | csym[1].u.auxent.x_scn.x_nreloc = sec->reloc_count; | |
1117 | csym[1].u.auxent.x_scn.x_nlinno = sec->lineno_count; | |
1118 | ||
1119 | if (sec->output_section == NULL) | |
075caafd | 1120 | { |
4c3721d5 ILT |
1121 | sec->output_section = sec; |
1122 | sec->output_offset = 0; | |
075caafd | 1123 | } |
4c3721d5 | 1124 | |
075caafd ILT |
1125 | return sym; |
1126 | } | |
1127 | ||
1128 | /* This function transforms the offsets into the symbol table into | |
1129 | pointers to syments. */ | |
1130 | ||
1131 | static void | |
25057836 JL |
1132 | coff_pointerize_aux (abfd, table_base, type, class, auxent) |
1133 | bfd *abfd; | |
1134 | combined_entry_type *table_base; | |
1135 | int type; | |
1136 | int class; | |
1137 | combined_entry_type *auxent; | |
075caafd ILT |
1138 | { |
1139 | /* Don't bother if this is a file or a section */ | |
1140 | if (class == C_STAT && type == T_NULL) return; | |
1141 | if (class == C_FILE) return; | |
1142 | ||
1143 | /* Otherwise patch up */ | |
1144 | #define N_TMASK coff_data (abfd)->local_n_tmask | |
1145 | #define N_BTSHFT coff_data (abfd)->local_n_btshft | |
69645d10 ILT |
1146 | if ((ISFCN(type) || ISTAG(class) || class == C_BLOCK) |
1147 | && auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l > 0) | |
1148 | { | |
1149 | auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p = | |
1150 | (table_base | |
1151 | + auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l); | |
075caafd ILT |
1152 | auxent->fix_end = 1; |
1153 | } | |
1154 | /* A negative tagndx is meaningless, but the SCO 3.2v4 cc can | |
1155 | generate one, so we must be careful to ignore it. */ | |
1156 | if (auxent->u.auxent.x_sym.x_tagndx.l > 0) { | |
1157 | auxent->u.auxent.x_sym.x_tagndx.p = | |
1158 | table_base + auxent->u.auxent.x_sym.x_tagndx.l; | |
1159 | auxent->fix_tag = 1; | |
1160 | } | |
1161 | } | |
1162 | ||
1163 | static char * | |
25057836 JL |
1164 | build_string_table (abfd) |
1165 | bfd *abfd; | |
075caafd | 1166 | { |
9fbe895a | 1167 | char string_table_size_buffer[STRING_SIZE_SIZE]; |
075caafd ILT |
1168 | unsigned int string_table_size; |
1169 | char *string_table; | |
1170 | ||
1171 | /* At this point we should be "seek"'d to the end of the | |
1172 | symbols === the symbol table size. */ | |
1173 | if (bfd_read((char *) string_table_size_buffer, | |
1174 | sizeof(string_table_size_buffer), | |
25057836 | 1175 | 1, abfd) != sizeof(string_table_size)) |
075caafd | 1176 | return (NULL); |
075caafd | 1177 | |
9fbe895a | 1178 | #if STRING_SIZE_SIZE == 4 |
075caafd | 1179 | string_table_size = bfd_h_get_32(abfd, (bfd_byte *) string_table_size_buffer); |
9fbe895a ILT |
1180 | #else |
1181 | #error Change bfd_h_get_32 | |
1182 | #endif | |
075caafd | 1183 | |
9fbe895a ILT |
1184 | if ((string_table = (PTR) bfd_alloc(abfd, |
1185 | string_table_size -= STRING_SIZE_SIZE)) | |
1186 | == NULL) | |
1187 | { | |
1188 | bfd_set_error (bfd_error_no_memory); | |
1189 | return (NULL); | |
1190 | } /* on mallocation error */ | |
25057836 | 1191 | if (bfd_read(string_table, string_table_size, 1, abfd) != string_table_size) |
075caafd | 1192 | return (NULL); |
075caafd ILT |
1193 | return string_table; |
1194 | } | |
1195 | ||
1196 | /* Allocate space for the ".debug" section, and read it. | |
1197 | We did not read the debug section until now, because | |
1198 | we didn't want to go to the trouble until someone needed it. */ | |
1199 | ||
1200 | static char * | |
25057836 JL |
1201 | build_debug_section (abfd) |
1202 | bfd *abfd; | |
075caafd ILT |
1203 | { |
1204 | char *debug_section; | |
1205 | long position; | |
1206 | ||
1207 | asection *sect = bfd_get_section_by_name (abfd, ".debug"); | |
1208 | ||
1209 | if (!sect) { | |
d1ad85a6 | 1210 | bfd_set_error (bfd_error_no_debug_section); |
075caafd ILT |
1211 | return NULL; |
1212 | } | |
1213 | ||
1214 | debug_section = (PTR) bfd_alloc (abfd, | |
1215 | bfd_get_section_size_before_reloc (sect)); | |
1216 | if (debug_section == NULL) { | |
d1ad85a6 | 1217 | bfd_set_error (bfd_error_no_memory); |
075caafd ILT |
1218 | return NULL; |
1219 | } | |
1220 | ||
1221 | /* Seek to the beginning of the `.debug' section and read it. | |
1222 | Save the current position first; it is needed by our caller. | |
1223 | Then read debug section and reset the file pointer. */ | |
1224 | ||
1225 | position = bfd_tell (abfd); | |
c16313f0 ILT |
1226 | if (bfd_seek (abfd, sect->filepos, SEEK_SET) != 0 |
1227 | || (bfd_read (debug_section, | |
1228 | bfd_get_section_size_before_reloc (sect), 1, abfd) | |
1229 | != bfd_get_section_size_before_reloc(sect)) | |
1230 | || bfd_seek (abfd, position, SEEK_SET) != 0) | |
075caafd | 1231 | return NULL; |
075caafd ILT |
1232 | return debug_section; |
1233 | } | |
1234 | ||
1235 | ||
1236 | /* Return a pointer to a malloc'd copy of 'name'. 'name' may not be | |
1237 | \0-terminated, but will not exceed 'maxlen' characters. The copy *will* | |
1238 | be \0-terminated. */ | |
1239 | static char * | |
25057836 JL |
1240 | copy_name (abfd, name, maxlen) |
1241 | bfd *abfd; | |
1242 | char *name; | |
1243 | int maxlen; | |
075caafd ILT |
1244 | { |
1245 | int len; | |
1246 | char *newname; | |
1247 | ||
1248 | for (len = 0; len < maxlen; ++len) { | |
1249 | if (name[len] == '\0') { | |
1250 | break; | |
1251 | } | |
1252 | } | |
1253 | ||
1254 | if ((newname = (PTR) bfd_alloc(abfd, len+1)) == NULL) { | |
d1ad85a6 | 1255 | bfd_set_error (bfd_error_no_memory); |
075caafd ILT |
1256 | return (NULL); |
1257 | } | |
1258 | strncpy(newname, name, len); | |
1259 | newname[len] = '\0'; | |
1260 | return newname; | |
1261 | } | |
1262 | ||
1263 | /* Read a symbol table into freshly bfd_allocated memory, swap it, and | |
1264 | knit the symbol names into a normalized form. By normalized here I | |
1265 | mean that all symbols have an n_offset pointer that points to a null- | |
1266 | terminated string. */ | |
1267 | ||
1268 | combined_entry_type * | |
25057836 JL |
1269 | coff_get_normalized_symtab (abfd) |
1270 | bfd *abfd; | |
075caafd ILT |
1271 | { |
1272 | combined_entry_type *internal; | |
1273 | combined_entry_type *internal_ptr; | |
1274 | combined_entry_type *symbol_ptr; | |
1275 | combined_entry_type *internal_end; | |
1276 | bfd_size_type symesz; | |
1277 | PTR raw; | |
1278 | char *raw_src; | |
1279 | char *raw_end; | |
1280 | char *string_table = NULL; | |
1281 | char *debug_section = NULL; | |
1282 | unsigned long size; | |
1283 | ||
1284 | unsigned int raw_size; | |
1285 | if (obj_raw_syments(abfd) != (combined_entry_type *)NULL) { | |
1286 | return obj_raw_syments(abfd); | |
1287 | } | |
69645d10 ILT |
1288 | size = obj_raw_syment_count (abfd) * sizeof (combined_entry_type); |
1289 | if (size == 0) | |
1290 | { | |
d1ad85a6 | 1291 | bfd_set_error (bfd_error_no_symbols); |
075caafd ILT |
1292 | return (NULL); |
1293 | } | |
1294 | ||
1295 | internal = (combined_entry_type *)bfd_alloc(abfd, size); | |
9783e04a DM |
1296 | if (!internal) |
1297 | { | |
d1ad85a6 | 1298 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
1299 | return NULL; |
1300 | } | |
69645d10 | 1301 | internal_end = internal + obj_raw_syment_count (abfd); |
075caafd ILT |
1302 | |
1303 | symesz = bfd_coff_symesz (abfd); | |
69645d10 | 1304 | raw_size = obj_raw_syment_count (abfd) * symesz; |
075caafd | 1305 | raw = bfd_alloc(abfd,raw_size); |
9783e04a DM |
1306 | if (!raw) |
1307 | { | |
d1ad85a6 | 1308 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
1309 | return NULL; |
1310 | } | |
075caafd ILT |
1311 | |
1312 | if (bfd_seek(abfd, obj_sym_filepos(abfd), SEEK_SET) == -1 | |
25057836 | 1313 | || bfd_read(raw, raw_size, 1, abfd) != raw_size) |
075caafd | 1314 | return (NULL); |
075caafd | 1315 | /* mark the end of the symbols */ |
69645d10 | 1316 | raw_end = (char *) raw + obj_raw_syment_count (abfd) * symesz; |
075caafd ILT |
1317 | /* |
1318 | FIXME SOMEDAY. A string table size of zero is very weird, but | |
1319 | probably possible. If one shows up, it will probably kill us. | |
1320 | */ | |
1321 | ||
1322 | /* Swap all the raw entries */ | |
1323 | for (raw_src = (char *) raw, internal_ptr = internal; | |
1324 | raw_src < raw_end; | |
1325 | raw_src += symesz, internal_ptr++) { | |
1326 | ||
1327 | unsigned int i; | |
1328 | bfd_coff_swap_sym_in(abfd, (PTR)raw_src, (PTR)&internal_ptr->u.syment); | |
9783e04a | 1329 | internal_ptr->fix_value = 0; |
075caafd ILT |
1330 | internal_ptr->fix_tag = 0; |
1331 | internal_ptr->fix_end = 0; | |
9783e04a | 1332 | internal_ptr->fix_scnlen = 0; |
075caafd | 1333 | symbol_ptr = internal_ptr; |
85fe7cff | 1334 | |
075caafd ILT |
1335 | for (i = 0; |
1336 | i < symbol_ptr->u.syment.n_numaux; | |
1337 | i++) | |
1338 | { | |
1339 | internal_ptr++; | |
1340 | raw_src += symesz; | |
1341 | ||
9783e04a | 1342 | internal_ptr->fix_value = 0; |
075caafd ILT |
1343 | internal_ptr->fix_tag = 0; |
1344 | internal_ptr->fix_end = 0; | |
9783e04a | 1345 | internal_ptr->fix_scnlen = 0; |
075caafd ILT |
1346 | bfd_coff_swap_aux_in(abfd, (PTR) raw_src, |
1347 | symbol_ptr->u.syment.n_type, | |
1348 | symbol_ptr->u.syment.n_sclass, | |
330595d0 | 1349 | i, symbol_ptr->u.syment.n_numaux, |
075caafd ILT |
1350 | &(internal_ptr->u.auxent)); |
1351 | /* Remember that bal entries arn't pointerized */ | |
1352 | if (i != 1 || symbol_ptr->u.syment.n_sclass != C_LEAFPROC) | |
1353 | { | |
1354 | ||
1355 | coff_pointerize_aux(abfd, | |
1356 | internal, | |
1357 | symbol_ptr->u.syment.n_type, | |
1358 | symbol_ptr->u.syment.n_sclass, | |
1359 | internal_ptr); | |
1360 | } | |
1361 | ||
1362 | } | |
1363 | } | |
1364 | ||
1365 | /* Free all the raw stuff */ | |
1366 | bfd_release(abfd, raw); | |
1367 | ||
1368 | for (internal_ptr = internal; internal_ptr < internal_end; | |
1369 | internal_ptr ++) | |
1370 | { | |
a74d1517 ILT |
1371 | if (internal_ptr->u.syment.n_sclass == C_FILE |
1372 | && internal_ptr->u.syment.n_numaux > 0) { | |
075caafd ILT |
1373 | /* make a file symbol point to the name in the auxent, since |
1374 | the text ".file" is redundant */ | |
1375 | if ((internal_ptr+1)->u.auxent.x_file.x_n.x_zeroes == 0) { | |
1376 | /* the filename is a long one, point into the string table */ | |
1377 | if (string_table == NULL) { | |
1378 | string_table = build_string_table(abfd); | |
1379 | } | |
1380 | ||
1381 | internal_ptr->u.syment._n._n_n._n_offset = | |
9fbe895a | 1382 | (long) (string_table - STRING_SIZE_SIZE + |
075caafd ILT |
1383 | (internal_ptr+1)->u.auxent.x_file.x_n.x_offset); |
1384 | } | |
1385 | else { | |
1386 | /* ordinary short filename, put into memory anyway */ | |
e4b6b3e7 | 1387 | internal_ptr->u.syment._n._n_n._n_offset = (long) |
075caafd ILT |
1388 | copy_name(abfd, (internal_ptr+1)->u.auxent.x_file.x_fname, |
1389 | FILNMLEN); | |
1390 | } | |
1391 | } | |
1392 | else { | |
1393 | if (internal_ptr->u.syment._n._n_n._n_zeroes != 0) { | |
1394 | /* This is a "short" name. Make it long. */ | |
1395 | unsigned long i = 0; | |
1396 | char *newstring = NULL; | |
1397 | ||
1398 | /* find the length of this string without walking into memory | |
1399 | that isn't ours. */ | |
1400 | for (i = 0; i < 8; ++i) { | |
1401 | if (internal_ptr->u.syment._n._n_name[i] == '\0') { | |
1402 | break; | |
1403 | } /* if end of string */ | |
1404 | } /* possible lengths of this string. */ | |
1405 | ||
1406 | if ((newstring = (PTR) bfd_alloc(abfd, ++i)) == NULL) { | |
d1ad85a6 | 1407 | bfd_set_error (bfd_error_no_memory); |
075caafd ILT |
1408 | return (NULL); |
1409 | } /* on error */ | |
1410 | memset(newstring, 0, i); | |
1411 | strncpy(newstring, internal_ptr->u.syment._n._n_name, i-1); | |
e4b6b3e7 | 1412 | internal_ptr->u.syment._n._n_n._n_offset = (long int) newstring; |
075caafd ILT |
1413 | internal_ptr->u.syment._n._n_n._n_zeroes = 0; |
1414 | } | |
9783e04a DM |
1415 | else if (internal_ptr->u.syment._n._n_n._n_offset == 0) |
1416 | internal_ptr->u.syment._n._n_n._n_offset = (long int) ""; | |
075caafd ILT |
1417 | else if (!bfd_coff_symname_in_debug(abfd, &internal_ptr->u.syment)) { |
1418 | /* Long name already. Point symbol at the string in the table. */ | |
1419 | if (string_table == NULL) { | |
1420 | string_table = build_string_table(abfd); | |
1421 | } | |
e4b6b3e7 | 1422 | internal_ptr->u.syment._n._n_n._n_offset = (long int) |
9fbe895a ILT |
1423 | (string_table |
1424 | - STRING_SIZE_SIZE | |
1425 | + internal_ptr->u.syment._n._n_n._n_offset); | |
075caafd ILT |
1426 | } |
1427 | else { | |
1428 | /* Long name in debug section. Very similar. */ | |
1429 | if (debug_section == NULL) { | |
1430 | debug_section = build_debug_section(abfd); | |
1431 | } | |
e4b6b3e7 | 1432 | internal_ptr->u.syment._n._n_n._n_offset = (long int) |
075caafd ILT |
1433 | (debug_section + internal_ptr->u.syment._n._n_n._n_offset); |
1434 | } | |
1435 | } | |
1436 | internal_ptr += internal_ptr->u.syment.n_numaux; | |
1437 | } | |
1438 | ||
1439 | obj_raw_syments(abfd) = internal; | |
b8520cf3 | 1440 | BFD_ASSERT (obj_raw_syment_count (abfd) == internal_ptr - internal); |
075caafd ILT |
1441 | |
1442 | return (internal); | |
1443 | } /* coff_get_normalized_symtab() */ | |
1444 | ||
326e32d7 | 1445 | long |
25057836 JL |
1446 | coff_get_reloc_upper_bound (abfd, asect) |
1447 | bfd *abfd; | |
1448 | sec_ptr asect; | |
075caafd ILT |
1449 | { |
1450 | if (bfd_get_format(abfd) != bfd_object) { | |
d1ad85a6 | 1451 | bfd_set_error (bfd_error_invalid_operation); |
326e32d7 | 1452 | return -1; |
075caafd ILT |
1453 | } |
1454 | return (asect->reloc_count + 1) * sizeof(arelent *); | |
1455 | } | |
1456 | ||
1457 | asymbol * | |
25057836 JL |
1458 | coff_make_empty_symbol (abfd) |
1459 | bfd *abfd; | |
075caafd ILT |
1460 | { |
1461 | coff_symbol_type *new = (coff_symbol_type *) bfd_alloc(abfd, sizeof(coff_symbol_type)); | |
1462 | if (new == NULL) { | |
d1ad85a6 | 1463 | bfd_set_error (bfd_error_no_memory); |
075caafd ILT |
1464 | return (NULL); |
1465 | } /* on error */ | |
9783e04a | 1466 | memset (new, 0, sizeof *new); |
075caafd ILT |
1467 | new->symbol.section = 0; |
1468 | new->native = 0; | |
1469 | new->lineno = (alent *) NULL; | |
1470 | new->done_lineno = false; | |
1471 | new->symbol.the_bfd = abfd; | |
1472 | return &new->symbol; | |
1473 | } | |
1474 | ||
2d1e6c9c KR |
1475 | /* Make a debugging symbol. */ |
1476 | ||
075caafd | 1477 | asymbol * |
2d1e6c9c KR |
1478 | coff_bfd_make_debug_symbol (abfd, ptr, sz) |
1479 | bfd *abfd; | |
1480 | PTR ptr; | |
1481 | unsigned long sz; | |
075caafd ILT |
1482 | { |
1483 | coff_symbol_type *new = (coff_symbol_type *) bfd_alloc(abfd, sizeof(coff_symbol_type)); | |
1484 | if (new == NULL) { | |
d1ad85a6 | 1485 | bfd_set_error (bfd_error_no_memory); |
075caafd ILT |
1486 | return (NULL); |
1487 | } /* on error */ | |
1488 | /* @@ This shouldn't be using a constant multiplier. */ | |
1489 | new->native = (combined_entry_type *) bfd_zalloc (abfd, sizeof (combined_entry_type) * 10); | |
9783e04a DM |
1490 | if (!new->native) |
1491 | { | |
d1ad85a6 | 1492 | bfd_set_error (bfd_error_no_memory); |
9783e04a DM |
1493 | return (NULL); |
1494 | } /* on error */ | |
075caafd ILT |
1495 | new->symbol.section = &bfd_debug_section; |
1496 | new->lineno = (alent *) NULL; | |
1497 | new->done_lineno = false; | |
1498 | new->symbol.the_bfd = abfd; | |
1499 | return &new->symbol; | |
1500 | } | |
1501 | ||
330595d0 | 1502 | /*ARGSUSED*/ |
2d1e6c9c KR |
1503 | void |
1504 | coff_get_symbol_info (abfd, symbol, ret) | |
1505 | bfd *abfd; | |
1506 | asymbol *symbol; | |
1507 | symbol_info *ret; | |
1508 | { | |
1509 | bfd_symbol_info (symbol, ret); | |
1510 | } | |
1511 | ||
e61cfdf8 ILT |
1512 | /* Print out information about COFF symbol. */ |
1513 | ||
075caafd | 1514 | void |
e61cfdf8 ILT |
1515 | coff_print_symbol (abfd, filep, symbol, how) |
1516 | bfd *abfd; | |
1517 | PTR filep; | |
1518 | asymbol *symbol; | |
1519 | bfd_print_symbol_type how; | |
075caafd | 1520 | { |
e61cfdf8 ILT |
1521 | FILE *file = (FILE *) filep; |
1522 | ||
1523 | switch (how) | |
1524 | { | |
075caafd | 1525 | case bfd_print_symbol_name: |
e61cfdf8 | 1526 | fprintf (file, "%s", symbol->name); |
075caafd | 1527 | break; |
e61cfdf8 | 1528 | |
075caafd | 1529 | case bfd_print_symbol_more: |
e61cfdf8 ILT |
1530 | fprintf (file, "coff %s %s", |
1531 | coffsymbol(symbol)->native ? "n" : "g", | |
1532 | coffsymbol(symbol)->lineno ? "l" : " "); | |
075caafd | 1533 | break; |
075caafd | 1534 | |
e61cfdf8 | 1535 | case bfd_print_symbol_all: |
075caafd | 1536 | if (coffsymbol(symbol)->native) |
075caafd | 1537 | { |
e61cfdf8 ILT |
1538 | unsigned int aux; |
1539 | combined_entry_type *combined = coffsymbol (symbol)->native; | |
1540 | combined_entry_type *root = obj_raw_syments (abfd); | |
1541 | struct lineno_cache_entry *l = coffsymbol(symbol)->lineno; | |
1542 | ||
5a53b1c1 | 1543 | fprintf (file,"[%3ld]", (long) (combined - root)); |
e61cfdf8 ILT |
1544 | |
1545 | fprintf (file, | |
4c3721d5 | 1546 | "(sc %2d)(fl 0x%02x)(ty %3x)(sc %3d) (nx %d) 0x%08lx %s", |
e61cfdf8 ILT |
1547 | combined->u.syment.n_scnum, |
1548 | combined->u.syment.n_flags, | |
1549 | combined->u.syment.n_type, | |
1550 | combined->u.syment.n_sclass, | |
1551 | combined->u.syment.n_numaux, | |
4c3721d5 | 1552 | (unsigned long) combined->u.syment.n_value, |
e61cfdf8 ILT |
1553 | symbol->name); |
1554 | ||
1555 | for (aux = 0; aux < combined->u.syment.n_numaux; aux++) | |
1556 | { | |
1557 | combined_entry_type *auxp = combined + aux + 1; | |
1558 | long tagndx; | |
1559 | ||
1560 | if (auxp->fix_tag) | |
1561 | tagndx = auxp->u.auxent.x_sym.x_tagndx.p - root; | |
1562 | else | |
1563 | tagndx = auxp->u.auxent.x_sym.x_tagndx.l; | |
1564 | ||
1565 | fprintf (file, "\n"); | |
1566 | switch (combined->u.syment.n_sclass) | |
1567 | { | |
1568 | case C_FILE: | |
1569 | fprintf (file, "File "); | |
1570 | break; | |
e61cfdf8 | 1571 | |
de733a0e KR |
1572 | case C_STAT: |
1573 | if (combined->u.syment.n_type == T_NULL) | |
1574 | /* probably a section symbol? */ | |
1575 | { | |
1576 | fprintf (file, "AUX scnlen 0x%lx nreloc %d nlnno %d", | |
1577 | (long) auxp->u.auxent.x_scn.x_scnlen, | |
1578 | auxp->u.auxent.x_scn.x_nreloc, | |
1579 | auxp->u.auxent.x_scn.x_nlinno); | |
1580 | break; | |
1581 | } | |
1582 | /* else fall through */ | |
1583 | ||
1584 | default: | |
4c3721d5 | 1585 | fprintf (file, "AUX lnno %d size 0x%x tagndx %ld", |
e61cfdf8 ILT |
1586 | auxp->u.auxent.x_sym.x_misc.x_lnsz.x_lnno, |
1587 | auxp->u.auxent.x_sym.x_misc.x_lnsz.x_size, | |
1588 | tagndx); | |
69645d10 ILT |
1589 | if (auxp->fix_end) |
1590 | fprintf (file, " endndx %ld", | |
1591 | ((long) | |
1592 | (auxp->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p | |
1593 | - root))); | |
e61cfdf8 ILT |
1594 | break; |
1595 | } | |
075caafd | 1596 | } |
075caafd | 1597 | |
e61cfdf8 ILT |
1598 | if (l) |
1599 | { | |
e4b6b3e7 | 1600 | fprintf (file, "\n%s :", l->u.sym->name); |
e61cfdf8 ILT |
1601 | l++; |
1602 | while (l->line_number) | |
1603 | { | |
4c3721d5 ILT |
1604 | fprintf (file, "\n%4d : 0x%lx", |
1605 | l->line_number, | |
1606 | ((unsigned long) | |
1607 | (l->u.offset + symbol->section->vma))); | |
e61cfdf8 ILT |
1608 | l++; |
1609 | } | |
1610 | } | |
1611 | } | |
1612 | else | |
075caafd | 1613 | { |
e61cfdf8 ILT |
1614 | bfd_print_symbol_vandf ((PTR) file, symbol); |
1615 | fprintf (file, " %-5s %s %s %s", | |
1616 | symbol->section->name, | |
1617 | coffsymbol(symbol)->native ? "n" : "g", | |
1618 | coffsymbol(symbol)->lineno ? "l" : " ", | |
1619 | symbol->name); | |
075caafd | 1620 | } |
075caafd ILT |
1621 | } |
1622 | } | |
1623 | ||
1624 | /* Provided a BFD, a section and an offset into the section, calculate | |
1625 | and return the name of the source file and the line nearest to the | |
1626 | wanted location. */ | |
1627 | ||
330595d0 | 1628 | /*ARGSUSED*/ |
075caafd | 1629 | boolean |
25057836 JL |
1630 | coff_find_nearest_line (abfd, section, ignore_symbols, offset, filename_ptr, |
1631 | functionname_ptr, line_ptr) | |
1632 | bfd *abfd; | |
1633 | asection *section; | |
1634 | asymbol **ignore_symbols; | |
1635 | bfd_vma offset; | |
1636 | CONST char **filename_ptr; | |
1637 | CONST char **functionname_ptr; | |
1638 | unsigned int *line_ptr; | |
075caafd ILT |
1639 | { |
1640 | static bfd *cache_abfd; | |
1641 | static asection *cache_section; | |
1642 | static bfd_vma cache_offset; | |
1643 | static unsigned int cache_i; | |
85fe7cff PB |
1644 | static CONST char *cache_function; |
1645 | static unsigned int line_base = 0; | |
075caafd | 1646 | |
a74d1517 | 1647 | unsigned int i; |
075caafd ILT |
1648 | coff_data_type *cof = coff_data(abfd); |
1649 | /* Run through the raw syments if available */ | |
1650 | combined_entry_type *p; | |
a74d1517 | 1651 | combined_entry_type *pend; |
075caafd | 1652 | alent *l; |
075caafd ILT |
1653 | |
1654 | ||
1655 | *filename_ptr = 0; | |
1656 | *functionname_ptr = 0; | |
1657 | *line_ptr = 0; | |
1658 | ||
1659 | /* Don't try and find line numbers in a non coff file */ | |
1660 | if (abfd->xvec->flavour != bfd_target_coff_flavour) | |
1661 | return false; | |
1662 | ||
1663 | if (cof == NULL) | |
1664 | return false; | |
1665 | ||
a74d1517 | 1666 | /* Find the first C_FILE symbol. */ |
075caafd | 1667 | p = cof->raw_syments; |
a74d1517 ILT |
1668 | pend = p + cof->raw_syment_count; |
1669 | while (p < pend) | |
1670 | { | |
1671 | if (p->u.syment.n_sclass == C_FILE) | |
1672 | break; | |
1673 | p += 1 + p->u.syment.n_numaux; | |
1674 | } | |
075caafd | 1675 | |
a74d1517 ILT |
1676 | if (p < pend) |
1677 | { | |
6d04c6d4 ILT |
1678 | bfd_vma maxdiff; |
1679 | ||
a74d1517 | 1680 | /* Look through the C_FILE symbols to find the best one. */ |
075caafd | 1681 | *filename_ptr = (char *) p->u.syment._n._n_n._n_offset; |
6d04c6d4 | 1682 | maxdiff = (bfd_vma) 0 - (bfd_vma) 1; |
a74d1517 ILT |
1683 | while (1) |
1684 | { | |
1685 | combined_entry_type *p2; | |
1686 | ||
6d04c6d4 ILT |
1687 | for (p2 = p + 1 + p->u.syment.n_numaux; |
1688 | p2 < pend; | |
1689 | p2 += 1 + p2->u.syment.n_numaux) | |
a74d1517 | 1690 | { |
6d04c6d4 ILT |
1691 | if (p2->u.syment.n_scnum > 0 |
1692 | && (section | |
1693 | == coff_section_from_bfd_index (abfd, | |
1694 | p2->u.syment.n_scnum))) | |
a74d1517 | 1695 | break; |
6d04c6d4 ILT |
1696 | if (p2->u.syment.n_sclass == C_FILE) |
1697 | { | |
1698 | p2 = pend; | |
1699 | break; | |
1700 | } | |
a74d1517 | 1701 | } |
6d04c6d4 | 1702 | |
a74d1517 | 1703 | if (p2 < pend |
6d04c6d4 ILT |
1704 | && offset >= p2->u.syment.n_value |
1705 | && offset - p2->u.syment.n_value < maxdiff) | |
1706 | { | |
1707 | *filename_ptr = (char *) p->u.syment._n._n_n._n_offset; | |
1708 | maxdiff = offset - p2->u.syment.n_value; | |
1709 | } | |
1710 | ||
1711 | /* Avoid endless loops on erroneous files by ensuring that | |
1712 | we always move forward in the file. */ | |
1713 | if (p - cof->raw_syments >= p->u.syment.n_value) | |
a74d1517 ILT |
1714 | break; |
1715 | ||
6d04c6d4 ILT |
1716 | p = cof->raw_syments + p->u.syment.n_value; |
1717 | if (p > pend || p->u.syment.n_sclass != C_FILE) | |
1718 | break; | |
a74d1517 | 1719 | } |
075caafd | 1720 | } |
a74d1517 | 1721 | |
075caafd ILT |
1722 | /* Now wander though the raw linenumbers of the section */ |
1723 | /* | |
1724 | If this is the same BFD as we were previously called with and this is | |
1725 | the same section, and the offset we want is further down then we can | |
1726 | prime the lookup loop | |
1727 | */ | |
1728 | if (abfd == cache_abfd && | |
1729 | section == cache_section && | |
1730 | offset >= cache_offset) { | |
1731 | i = cache_i; | |
85fe7cff | 1732 | *functionname_ptr = cache_function; |
075caafd ILT |
1733 | } |
1734 | else { | |
1735 | i = 0; | |
075caafd | 1736 | } |
85fe7cff | 1737 | l = §ion->lineno[i]; |
075caafd ILT |
1738 | |
1739 | for (; i < section->lineno_count; i++) { | |
1740 | if (l->line_number == 0) { | |
1741 | /* Get the symbol this line number points at */ | |
1742 | coff_symbol_type *coff = (coff_symbol_type *) (l->u.sym); | |
85fe7cff PB |
1743 | if (coff->symbol.value > offset) |
1744 | break; | |
075caafd ILT |
1745 | *functionname_ptr = coff->symbol.name; |
1746 | if (coff->native) { | |
1747 | combined_entry_type *s = coff->native; | |
1748 | s = s + 1 + s->u.syment.n_numaux; | |
a74d1517 ILT |
1749 | |
1750 | /* In XCOFF a debugging symbol can follow the function | |
1751 | symbol. */ | |
1752 | if (s->u.syment.n_scnum == N_DEBUG) | |
1753 | s = s + 1 + s->u.syment.n_numaux; | |
1754 | ||
075caafd ILT |
1755 | /* |
1756 | S should now point to the .bf of the function | |
1757 | */ | |
1758 | if (s->u.syment.n_numaux) { | |
1759 | /* | |
1760 | The linenumber is stored in the auxent | |
1761 | */ | |
1762 | union internal_auxent *a = &((s + 1)->u.auxent); | |
1763 | line_base = a->x_sym.x_misc.x_lnsz.x_lnno; | |
85fe7cff | 1764 | *line_ptr = line_base; |
075caafd ILT |
1765 | } |
1766 | } | |
1767 | } | |
1768 | else { | |
a74d1517 | 1769 | if (l->u.offset + bfd_get_section_vma (abfd, section) > offset) |
075caafd | 1770 | break; |
85fe7cff | 1771 | *line_ptr = l->line_number + line_base - 1; |
075caafd ILT |
1772 | } |
1773 | l++; | |
1774 | } | |
1775 | ||
1776 | cache_abfd = abfd; | |
1777 | cache_section = section; | |
1778 | cache_offset = offset; | |
1779 | cache_i = i; | |
85fe7cff | 1780 | cache_function = *functionname_ptr; |
075caafd ILT |
1781 | |
1782 | return true; | |
1783 | } | |
1784 | ||
1785 | int | |
25057836 JL |
1786 | coff_sizeof_headers (abfd, reloc) |
1787 | bfd *abfd; | |
1788 | boolean reloc; | |
075caafd ILT |
1789 | { |
1790 | size_t size; | |
1791 | ||
1792 | if (reloc == false) { | |
1793 | size = bfd_coff_filhsz (abfd) + bfd_coff_aoutsz (abfd); | |
1794 | } | |
1795 | else { | |
1796 | size = bfd_coff_filhsz (abfd); | |
1797 | } | |
1798 | ||
1799 | size += abfd->section_count * bfd_coff_scnhsz (abfd); | |
1800 | return size; | |
1801 | } |