Commit | Line | Data |
---|---|---|
075caafd | 1 | /* Support for the generic parts of COFF, for BFD. |
f5d3fb75 | 2 | Copyright 1990, 91, 92, 93, 94, 95, 96, 1997 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 | |
ae115e51 | 19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
075caafd ILT |
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 | ||
f0500a41 ILT |
44 | static void coff_fix_symbol_name |
45 | PARAMS ((bfd *, asymbol *, combined_entry_type *, bfd_size_type *, | |
46 | asection **, bfd_size_type *)); | |
47 | static boolean coff_write_symbol | |
48 | PARAMS ((bfd *, asymbol *, combined_entry_type *, unsigned int *, | |
49 | bfd_size_type *, asection **, bfd_size_type *)); | |
50 | static boolean coff_write_alien_symbol | |
51 | PARAMS ((bfd *, asymbol *, unsigned int *, bfd_size_type *, | |
52 | asection **, bfd_size_type *)); | |
53 | static boolean coff_write_native_symbol | |
54 | PARAMS ((bfd *, coff_symbol_type *, unsigned int *, bfd_size_type *, | |
55 | asection **, bfd_size_type *)); | |
c80cc833 ILT |
56 | static void coff_pointerize_aux |
57 | PARAMS ((bfd *, combined_entry_type *, combined_entry_type *, | |
58 | unsigned int, combined_entry_type *)); | |
f5d3fb75 FF |
59 | static boolean make_a_section_from_file |
60 | PARAMS ((bfd *, struct internal_scnhdr *, unsigned int)); | |
61 | static const bfd_target *coff_real_object_p | |
62 | PARAMS ((bfd *, unsigned, struct internal_filehdr *, | |
63 | struct internal_aouthdr *)); | |
64 | static void fixup_symbol_value | |
65 | PARAMS ((bfd *, coff_symbol_type *, struct internal_syment *)); | |
66 | static char *build_debug_section | |
67 | PARAMS ((bfd *)); | |
68 | static char *copy_name | |
69 | PARAMS ((bfd *, char *, int)); | |
bfe8224f | 70 | |
9fbe895a ILT |
71 | #define STRING_SIZE_SIZE (4) |
72 | ||
075caafd ILT |
73 | /* Take a section header read from a coff file (in HOST byte order), |
74 | and make a BFD "section" out of it. This is used by ECOFF. */ | |
6dc6a81a | 75 | static boolean |
25057836 | 76 | make_a_section_from_file (abfd, hdr, target_index) |
6dc6a81a ILT |
77 | bfd *abfd; |
78 | struct internal_scnhdr *hdr; | |
25057836 | 79 | unsigned int target_index; |
075caafd | 80 | { |
6dc6a81a | 81 | asection *return_section; |
075caafd | 82 | char *name; |
6dc6a81a | 83 | |
f5d3fb75 FF |
84 | name = NULL; |
85 | ||
86 | /* Handle long section names as in PE. */ | |
87 | if (bfd_coff_long_section_names (abfd) | |
88 | && hdr->s_name[0] == '/') | |
89 | { | |
90 | char buf[SCNNMLEN]; | |
91 | long strindex; | |
92 | char *p; | |
93 | const char *strings; | |
94 | ||
95 | memcpy (buf, hdr->s_name + 1, SCNNMLEN - 1); | |
96 | buf[SCNNMLEN - 1] = '\0'; | |
97 | strindex = strtol (buf, &p, 10); | |
98 | if (*p == '\0' && strindex >= 0) | |
99 | { | |
100 | strings = _bfd_coff_read_string_table (abfd); | |
101 | if (strings == NULL) | |
102 | return false; | |
103 | /* FIXME: For extra safety, we should make sure that | |
104 | strindex does not run us past the end, but right now we | |
105 | don't know the length of the string table. */ | |
106 | strings += strindex; | |
107 | name = bfd_alloc (abfd, strlen (strings) + 1); | |
108 | if (name == NULL) | |
109 | return false; | |
110 | strcpy (name, strings); | |
111 | } | |
112 | } | |
113 | ||
6dc6a81a | 114 | if (name == NULL) |
f5d3fb75 FF |
115 | { |
116 | /* Assorted wastage to null-terminate the name, thanks AT&T! */ | |
117 | name = bfd_alloc (abfd, sizeof (hdr->s_name) + 1); | |
118 | if (name == NULL) | |
119 | return false; | |
120 | strncpy (name, (char *) &hdr->s_name[0], sizeof (hdr->s_name)); | |
121 | name[sizeof (hdr->s_name)] = 0; | |
122 | } | |
075caafd | 123 | |
c80cc833 | 124 | return_section = bfd_make_section_anyway (abfd, name); |
075caafd ILT |
125 | if (return_section == NULL) |
126 | return false; | |
127 | ||
075caafd | 128 | return_section->vma = hdr->s_vaddr; |
45ca3195 | 129 | return_section->lma = hdr->s_paddr; |
075caafd ILT |
130 | return_section->_raw_size = hdr->s_size; |
131 | return_section->filepos = hdr->s_scnptr; | |
6dc6a81a | 132 | return_section->rel_filepos = hdr->s_relptr; |
075caafd ILT |
133 | return_section->reloc_count = hdr->s_nreloc; |
134 | ||
135 | bfd_coff_set_alignment_hook (abfd, return_section, hdr); | |
136 | ||
6dc6a81a | 137 | return_section->line_filepos = hdr->s_lnnoptr; |
075caafd ILT |
138 | |
139 | return_section->lineno_count = hdr->s_nlnno; | |
140 | return_section->userdata = NULL; | |
141 | return_section->next = (asection *) NULL; | |
e8fbe6d9 | 142 | return_section->flags = bfd_coff_styp_to_sec_flags_hook (abfd, hdr, name); |
075caafd ILT |
143 | |
144 | return_section->target_index = target_index; | |
145 | ||
2d1e6c9c KR |
146 | /* At least on i386-coff, the line number count for a shared library |
147 | section must be ignored. */ | |
c16313f0 | 148 | if ((return_section->flags & SEC_COFF_SHARED_LIBRARY) != 0) |
2d1e6c9c KR |
149 | return_section->lineno_count = 0; |
150 | ||
075caafd ILT |
151 | if (hdr->s_nreloc != 0) |
152 | return_section->flags |= SEC_RELOC; | |
153 | /* FIXME: should this check 'hdr->s_size > 0' */ | |
154 | if (hdr->s_scnptr != 0) | |
155 | return_section->flags |= SEC_HAS_CONTENTS; | |
156 | return true; | |
157 | } | |
158 | ||
159 | /* Read in a COFF object and make it into a BFD. This is used by | |
160 | ECOFF as well. */ | |
161 | ||
2f3508ad | 162 | static const bfd_target * |
25057836 | 163 | coff_real_object_p (abfd, nscns, internal_f, internal_a) |
6dc6a81a ILT |
164 | bfd *abfd; |
165 | unsigned nscns; | |
25057836 JL |
166 | struct internal_filehdr *internal_f; |
167 | struct internal_aouthdr *internal_a; | |
075caafd | 168 | { |
c7e76b5e ILT |
169 | flagword oflags = abfd->flags; |
170 | bfd_vma ostart = bfd_get_start_address (abfd); | |
075caafd | 171 | PTR tdata; |
6dc6a81a | 172 | size_t readsize; /* length of file_info */ |
075caafd ILT |
173 | unsigned int scnhsz; |
174 | char *external_sections; | |
175 | ||
c7e76b5e ILT |
176 | if (!(internal_f->f_flags & F_RELFLG)) |
177 | abfd->flags |= HAS_RELOC; | |
178 | if ((internal_f->f_flags & F_EXEC)) | |
179 | abfd->flags |= EXEC_P; | |
180 | if (!(internal_f->f_flags & F_LNNO)) | |
181 | abfd->flags |= HAS_LINENO; | |
182 | if (!(internal_f->f_flags & F_LSYMS)) | |
183 | abfd->flags |= HAS_LOCALS; | |
184 | ||
185 | /* FIXME: How can we set D_PAGED correctly? */ | |
186 | if ((internal_f->f_flags & F_EXEC) != 0) | |
187 | abfd->flags |= D_PAGED; | |
188 | ||
189 | bfd_get_symcount (abfd) = internal_f->f_nsyms; | |
190 | if (internal_f->f_nsyms) | |
191 | abfd->flags |= HAS_SYMS; | |
192 | ||
193 | if (internal_a != (struct internal_aouthdr *) NULL) | |
194 | bfd_get_start_address (abfd) = internal_a->entry; | |
195 | else | |
196 | bfd_get_start_address (abfd) = 0; | |
197 | ||
198 | /* Set up the tdata area. ECOFF uses its own routine, and overrides | |
199 | abfd->flags. */ | |
27f524a3 | 200 | tdata = bfd_coff_mkobject_hook (abfd, (PTR) internal_f, (PTR) internal_a); |
075caafd ILT |
201 | if (tdata == NULL) |
202 | return 0; | |
203 | ||
204 | scnhsz = bfd_coff_scnhsz (abfd); | |
205 | readsize = nscns * scnhsz; | |
6dc6a81a | 206 | external_sections = (char *) bfd_alloc (abfd, readsize); |
9783e04a | 207 | if (!external_sections) |
a9713b91 | 208 | goto fail; |
075caafd | 209 | |
6dc6a81a | 210 | if (bfd_read ((PTR) external_sections, 1, readsize, abfd) != readsize) |
075caafd | 211 | goto fail; |
075caafd ILT |
212 | |
213 | /* Now copy data as required; construct all asections etc */ | |
6dc6a81a ILT |
214 | if (nscns != 0) |
215 | { | |
216 | unsigned int i; | |
217 | for (i = 0; i < nscns; i++) | |
218 | { | |
219 | struct internal_scnhdr tmp; | |
c7e76b5e ILT |
220 | bfd_coff_swap_scnhdr_in (abfd, |
221 | (PTR) (external_sections + i * scnhsz), | |
6dc6a81a | 222 | (PTR) & tmp); |
f5d3fb75 FF |
223 | if (! make_a_section_from_file (abfd, &tmp, i + 1)) |
224 | goto fail; | |
6dc6a81a | 225 | } |
075caafd | 226 | } |
075caafd | 227 | |
6dc6a81a ILT |
228 | /* make_abs_section (abfd); */ |
229 | ||
075caafd ILT |
230 | if (bfd_coff_set_arch_mach_hook (abfd, (PTR) internal_f) == false) |
231 | goto fail; | |
232 | ||
075caafd | 233 | return abfd->xvec; |
c7e76b5e | 234 | |
075caafd | 235 | fail: |
6dc6a81a | 236 | bfd_release (abfd, tdata); |
c7e76b5e ILT |
237 | abfd->flags = oflags; |
238 | bfd_get_start_address (abfd) = ostart; | |
6dc6a81a | 239 | return (const bfd_target *) NULL; |
075caafd ILT |
240 | } |
241 | ||
d1ad85a6 | 242 | /* Turn a COFF file into a BFD, but fail with bfd_error_wrong_format if it is |
075caafd ILT |
243 | not a COFF file. This is also used by ECOFF. */ |
244 | ||
2f3508ad | 245 | const bfd_target * |
25057836 | 246 | coff_object_p (abfd) |
6dc6a81a | 247 | bfd *abfd; |
075caafd ILT |
248 | { |
249 | unsigned int filhsz; | |
250 | unsigned int aoutsz; | |
6dc6a81a | 251 | int nscns; |
075caafd ILT |
252 | PTR filehdr; |
253 | struct internal_filehdr internal_f; | |
254 | struct internal_aouthdr internal_a; | |
255 | ||
075caafd ILT |
256 | /* figure out how much to read */ |
257 | filhsz = bfd_coff_filhsz (abfd); | |
258 | aoutsz = bfd_coff_aoutsz (abfd); | |
259 | ||
260 | filehdr = bfd_alloc (abfd, filhsz); | |
261 | if (filehdr == NULL) | |
262 | return 0; | |
6dc6a81a | 263 | if (bfd_read (filehdr, 1, filhsz, abfd) != filhsz) |
25057836 JL |
264 | { |
265 | if (bfd_get_error () != bfd_error_system_call) | |
266 | bfd_set_error (bfd_error_wrong_format); | |
267 | return 0; | |
268 | } | |
6dc6a81a | 269 | bfd_coff_swap_filehdr_in (abfd, filehdr, &internal_f); |
075caafd ILT |
270 | bfd_release (abfd, filehdr); |
271 | ||
6dc6a81a ILT |
272 | if (bfd_coff_bad_format_hook (abfd, &internal_f) == false) |
273 | { | |
274 | bfd_set_error (bfd_error_wrong_format); | |
275 | return 0; | |
276 | } | |
277 | nscns = internal_f.f_nscns; | |
075caafd | 278 | |
6dc6a81a ILT |
279 | if (internal_f.f_opthdr) |
280 | { | |
281 | PTR opthdr; | |
075caafd | 282 | |
6dc6a81a ILT |
283 | opthdr = bfd_alloc (abfd, aoutsz); |
284 | if (opthdr == NULL) | |
285 | return 0;; | |
286 | if (bfd_read (opthdr, 1, aoutsz, abfd) != aoutsz) | |
287 | { | |
288 | return 0; | |
289 | } | |
290 | bfd_coff_swap_aouthdr_in (abfd, opthdr, (PTR) & internal_a); | |
075caafd | 291 | } |
075caafd ILT |
292 | |
293 | /* Seek past the opt hdr stuff */ | |
6dc6a81a | 294 | if (bfd_seek (abfd, (file_ptr) (internal_f.f_opthdr + filhsz), SEEK_SET) |
c16313f0 ILT |
295 | != 0) |
296 | return NULL; | |
075caafd | 297 | |
6dc6a81a ILT |
298 | return coff_real_object_p (abfd, nscns, &internal_f, |
299 | (internal_f.f_opthdr != 0 | |
300 | ? &internal_a | |
301 | : (struct internal_aouthdr *) NULL)); | |
075caafd ILT |
302 | } |
303 | ||
304 | /* Get the BFD section from a COFF symbol section number. */ | |
305 | ||
e8fbe6d9 | 306 | asection * |
25057836 | 307 | coff_section_from_bfd_index (abfd, index) |
6dc6a81a ILT |
308 | bfd *abfd; |
309 | int index; | |
075caafd ILT |
310 | { |
311 | struct sec *answer = abfd->sections; | |
312 | ||
6dc6a81a | 313 | if (index == N_ABS) |
e8fbe6d9 | 314 | return bfd_abs_section_ptr; |
075caafd | 315 | if (index == N_UNDEF) |
e8fbe6d9 | 316 | return bfd_und_section_ptr; |
6dc6a81a ILT |
317 | if (index == N_DEBUG) |
318 | return bfd_abs_section_ptr; | |
319 | ||
320 | while (answer) | |
321 | { | |
075caafd | 322 | if (answer->target_index == index) |
6dc6a81a | 323 | return answer; |
075caafd ILT |
324 | answer = answer->next; |
325 | } | |
c16313f0 ILT |
326 | |
327 | /* We should not reach this point, but the SCO 3.2v4 /lib/libc_s.a | |
328 | has a bad symbol table in biglitpow.o. */ | |
e8fbe6d9 | 329 | return bfd_und_section_ptr; |
075caafd ILT |
330 | } |
331 | ||
332 | /* Get the upper bound of a COFF symbol table. */ | |
333 | ||
326e32d7 | 334 | long |
6dc6a81a ILT |
335 | coff_get_symtab_upper_bound (abfd) |
336 | bfd *abfd; | |
075caafd | 337 | { |
6dc6a81a | 338 | if (!bfd_coff_slurp_symbol_table (abfd)) |
326e32d7 | 339 | return -1; |
075caafd | 340 | |
6dc6a81a | 341 | return (bfd_get_symcount (abfd) + 1) * (sizeof (coff_symbol_type *)); |
075caafd ILT |
342 | } |
343 | ||
344 | ||
345 | /* Canonicalize a COFF symbol table. */ | |
346 | ||
326e32d7 | 347 | long |
25057836 | 348 | coff_get_symtab (abfd, alocation) |
74942465 ILT |
349 | bfd *abfd; |
350 | asymbol **alocation; | |
075caafd | 351 | { |
74942465 ILT |
352 | unsigned int counter; |
353 | coff_symbol_type *symbase; | |
354 | coff_symbol_type **location = (coff_symbol_type **) alocation; | |
355 | ||
6dc6a81a | 356 | if (!bfd_coff_slurp_symbol_table (abfd)) |
74942465 ILT |
357 | return -1; |
358 | ||
359 | symbase = obj_symbols (abfd); | |
360 | counter = bfd_get_symcount (abfd); | |
361 | while (counter-- > 0) | |
362 | *location++ = symbase++; | |
363 | ||
364 | *location = NULL; | |
365 | ||
366 | return bfd_get_symcount (abfd); | |
075caafd ILT |
367 | } |
368 | ||
867d923d ILT |
369 | /* Get the name of a symbol. The caller must pass in a buffer of size |
370 | >= SYMNMLEN + 1. */ | |
371 | ||
372 | const char * | |
373 | _bfd_coff_internal_syment_name (abfd, sym, buf) | |
374 | bfd *abfd; | |
375 | const struct internal_syment *sym; | |
376 | char *buf; | |
377 | { | |
378 | /* FIXME: It's not clear this will work correctly if sizeof | |
379 | (_n_zeroes) != 4. */ | |
380 | if (sym->_n._n_n._n_zeroes != 0 | |
381 | || sym->_n._n_n._n_offset == 0) | |
382 | { | |
383 | memcpy (buf, sym->_n._n_name, SYMNMLEN); | |
384 | buf[SYMNMLEN] = '\0'; | |
385 | return buf; | |
386 | } | |
387 | else | |
388 | { | |
389 | const char *strings; | |
390 | ||
391 | BFD_ASSERT (sym->_n._n_n._n_offset >= STRING_SIZE_SIZE); | |
392 | strings = obj_coff_strings (abfd); | |
393 | if (strings == NULL) | |
394 | { | |
395 | strings = _bfd_coff_read_string_table (abfd); | |
396 | if (strings == NULL) | |
397 | return NULL; | |
398 | } | |
399 | return strings + sym->_n._n_n._n_offset; | |
400 | } | |
401 | } | |
402 | ||
403 | /* Read in and swap the relocs. This returns a buffer holding the | |
404 | relocs for section SEC in file ABFD. If CACHE is true and | |
405 | INTERNAL_RELOCS is NULL, the relocs read in will be saved in case | |
406 | the function is called again. If EXTERNAL_RELOCS is not NULL, it | |
407 | is a buffer large enough to hold the unswapped relocs. If | |
408 | INTERNAL_RELOCS is not NULL, it is a buffer large enough to hold | |
409 | the swapped relocs. If REQUIRE_INTERNAL is true, then the return | |
410 | value must be INTERNAL_RELOCS. The function returns NULL on error. */ | |
411 | ||
412 | struct internal_reloc * | |
413 | _bfd_coff_read_internal_relocs (abfd, sec, cache, external_relocs, | |
414 | require_internal, internal_relocs) | |
415 | bfd *abfd; | |
416 | asection *sec; | |
417 | boolean cache; | |
418 | bfd_byte *external_relocs; | |
419 | boolean require_internal; | |
420 | struct internal_reloc *internal_relocs; | |
421 | { | |
422 | bfd_size_type relsz; | |
423 | bfd_byte *free_external = NULL; | |
424 | struct internal_reloc *free_internal = NULL; | |
425 | bfd_byte *erel; | |
426 | bfd_byte *erel_end; | |
427 | struct internal_reloc *irel; | |
428 | ||
429 | if (coff_section_data (abfd, sec) != NULL | |
430 | && coff_section_data (abfd, sec)->relocs != NULL) | |
431 | { | |
432 | if (! require_internal) | |
433 | return coff_section_data (abfd, sec)->relocs; | |
434 | memcpy (internal_relocs, coff_section_data (abfd, sec)->relocs, | |
435 | sec->reloc_count * sizeof (struct internal_reloc)); | |
436 | return internal_relocs; | |
437 | } | |
438 | ||
439 | relsz = bfd_coff_relsz (abfd); | |
440 | ||
441 | if (external_relocs == NULL) | |
442 | { | |
58142f10 | 443 | free_external = (bfd_byte *) bfd_malloc (sec->reloc_count * relsz); |
867d923d | 444 | if (free_external == NULL && sec->reloc_count > 0) |
58142f10 | 445 | goto error_return; |
867d923d ILT |
446 | external_relocs = free_external; |
447 | } | |
448 | ||
449 | if (bfd_seek (abfd, sec->rel_filepos, SEEK_SET) != 0 | |
450 | || (bfd_read (external_relocs, relsz, sec->reloc_count, abfd) | |
451 | != relsz * sec->reloc_count)) | |
452 | goto error_return; | |
453 | ||
454 | if (internal_relocs == NULL) | |
455 | { | |
456 | free_internal = ((struct internal_reloc *) | |
58142f10 ILT |
457 | bfd_malloc (sec->reloc_count |
458 | * sizeof (struct internal_reloc))); | |
867d923d | 459 | if (free_internal == NULL && sec->reloc_count > 0) |
58142f10 | 460 | goto error_return; |
867d923d ILT |
461 | internal_relocs = free_internal; |
462 | } | |
463 | ||
464 | /* Swap in the relocs. */ | |
465 | erel = external_relocs; | |
466 | erel_end = erel + relsz * sec->reloc_count; | |
467 | irel = internal_relocs; | |
468 | for (; erel < erel_end; erel += relsz, irel++) | |
469 | bfd_coff_swap_reloc_in (abfd, (PTR) erel, (PTR) irel); | |
470 | ||
471 | if (free_external != NULL) | |
472 | { | |
473 | free (free_external); | |
474 | free_external = NULL; | |
475 | } | |
476 | ||
477 | if (cache && free_internal != NULL) | |
478 | { | |
479 | if (coff_section_data (abfd, sec) == NULL) | |
480 | { | |
481 | sec->used_by_bfd = | |
482 | (PTR) bfd_zalloc (abfd, | |
483 | sizeof (struct coff_section_tdata)); | |
484 | if (sec->used_by_bfd == NULL) | |
a9713b91 | 485 | goto error_return; |
867d923d ILT |
486 | coff_section_data (abfd, sec)->contents = NULL; |
487 | } | |
488 | coff_section_data (abfd, sec)->relocs = free_internal; | |
489 | } | |
490 | ||
491 | return internal_relocs; | |
492 | ||
493 | error_return: | |
494 | if (free_external != NULL) | |
495 | free (free_external); | |
496 | if (free_internal != NULL) | |
497 | free (free_internal); | |
498 | return NULL; | |
499 | } | |
500 | ||
075caafd ILT |
501 | /* Set lineno_count for the output sections of a COFF file. */ |
502 | ||
27f524a3 | 503 | int |
25057836 | 504 | coff_count_linenumbers (abfd) |
69645d10 | 505 | bfd *abfd; |
075caafd | 506 | { |
6dc6a81a | 507 | unsigned int limit = bfd_get_symcount (abfd); |
69645d10 | 508 | unsigned int i; |
27f524a3 | 509 | int total = 0; |
69645d10 ILT |
510 | asymbol **p; |
511 | asection *s; | |
512 | ||
513 | if (limit == 0) | |
514 | { | |
515 | /* This may be from the backend linker, in which case the | |
516 | lineno_count in the sections is correct. */ | |
517 | for (s = abfd->sections; s != NULL; s = s->next) | |
518 | total += s->lineno_count; | |
519 | return total; | |
520 | } | |
521 | ||
522 | for (s = abfd->sections; s != NULL; s = s->next) | |
523 | BFD_ASSERT (s->lineno_count == 0); | |
524 | ||
525 | for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) | |
526 | { | |
527 | asymbol *q_maybe = *p; | |
528 | ||
529 | if (bfd_asymbol_flavour (q_maybe) == bfd_target_coff_flavour) | |
530 | { | |
531 | coff_symbol_type *q = coffsymbol (q_maybe); | |
532 | ||
d7731c7d ILT |
533 | /* The AIX 4.1 compiler can sometimes generate line numbers |
534 | attached to debugging symbols. We try to simply ignore | |
535 | those here. */ | |
536 | if (q->lineno != NULL | |
537 | && q->symbol.section->owner != NULL) | |
69645d10 ILT |
538 | { |
539 | /* This symbol has line numbers. Increment the owning | |
6dc6a81a | 540 | section's linenumber count. */ |
69645d10 ILT |
541 | alent *l = q->lineno; |
542 | ||
543 | ++q->symbol.section->output_section->lineno_count; | |
544 | ++total; | |
545 | ++l; | |
546 | while (l->line_number != 0) | |
547 | { | |
548 | ++total; | |
549 | ++q->symbol.section->output_section->lineno_count; | |
550 | ++l; | |
551 | } | |
552 | } | |
075caafd | 553 | } |
075caafd | 554 | } |
69645d10 | 555 | |
27f524a3 | 556 | return total; |
075caafd ILT |
557 | } |
558 | ||
559 | /* Takes a bfd and a symbol, returns a pointer to the coff specific | |
560 | area of the symbol if there is one. */ | |
561 | ||
330595d0 | 562 | /*ARGSUSED*/ |
075caafd | 563 | coff_symbol_type * |
25057836 | 564 | coff_symbol_from (ignore_abfd, symbol) |
6dc6a81a ILT |
565 | bfd *ignore_abfd; |
566 | asymbol *symbol; | |
075caafd | 567 | { |
6dc6a81a ILT |
568 | if (bfd_asymbol_flavour (symbol) != bfd_target_coff_flavour) |
569 | return (coff_symbol_type *) NULL; | |
075caafd | 570 | |
6dc6a81a ILT |
571 | if (bfd_asymbol_bfd (symbol)->tdata.coff_obj_data == (coff_data_type *) NULL) |
572 | return (coff_symbol_type *) NULL; | |
075caafd | 573 | |
6dc6a81a | 574 | return (coff_symbol_type *) symbol; |
075caafd ILT |
575 | } |
576 | ||
577 | static void | |
f5d3fb75 FF |
578 | fixup_symbol_value (abfd, coff_symbol_ptr, syment) |
579 | bfd *abfd; | |
25057836 JL |
580 | coff_symbol_type *coff_symbol_ptr; |
581 | struct internal_syment *syment; | |
075caafd ILT |
582 | { |
583 | ||
584 | /* Normalize the symbol flags */ | |
6dc6a81a ILT |
585 | if (bfd_is_com_section (coff_symbol_ptr->symbol.section)) |
586 | { | |
587 | /* a common symbol is undefined with a value */ | |
588 | syment->n_scnum = N_UNDEF; | |
589 | syment->n_value = coff_symbol_ptr->symbol.value; | |
075caafd | 590 | } |
6dc6a81a ILT |
591 | else if (coff_symbol_ptr->symbol.flags & BSF_DEBUGGING) |
592 | { | |
075caafd ILT |
593 | syment->n_value = coff_symbol_ptr->symbol.value; |
594 | } | |
6dc6a81a ILT |
595 | else if (bfd_is_und_section (coff_symbol_ptr->symbol.section)) |
596 | { | |
597 | syment->n_scnum = N_UNDEF; | |
598 | syment->n_value = 0; | |
599 | } | |
600 | else | |
601 | { | |
602 | if (coff_symbol_ptr->symbol.section) | |
603 | { | |
604 | syment->n_scnum = | |
605 | coff_symbol_ptr->symbol.section->output_section->target_index; | |
606 | ||
f5d3fb75 FF |
607 | syment->n_value = (coff_symbol_ptr->symbol.value |
608 | + coff_symbol_ptr->symbol.section->output_offset); | |
609 | if (! obj_pe (abfd)) | |
610 | syment->n_value += | |
611 | coff_symbol_ptr->symbol.section->output_section->vma; | |
6dc6a81a ILT |
612 | } |
613 | else | |
614 | { | |
615 | BFD_ASSERT (0); | |
616 | /* This can happen, but I don't know why yet (steve@cygnus.com) */ | |
617 | syment->n_scnum = N_ABS; | |
618 | syment->n_value = coff_symbol_ptr->symbol.value; | |
619 | } | |
620 | } | |
075caafd ILT |
621 | } |
622 | ||
6dc6a81a ILT |
623 | /* Run through all the symbols in the symbol table and work out what |
624 | their indexes into the symbol table will be when output. | |
075caafd | 625 | |
6dc6a81a ILT |
626 | Coff requires that each C_FILE symbol points to the next one in the |
627 | chain, and that the last one points to the first external symbol. We | |
628 | do that here too. */ | |
075caafd | 629 | |
9783e04a | 630 | boolean |
c7e76b5e | 631 | coff_renumber_symbols (bfd_ptr, first_undef) |
25057836 | 632 | bfd *bfd_ptr; |
c7e76b5e | 633 | int *first_undef; |
075caafd | 634 | { |
6dc6a81a | 635 | unsigned int symbol_count = bfd_get_symcount (bfd_ptr); |
075caafd ILT |
636 | asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols; |
637 | unsigned int native_index = 0; | |
6dc6a81a | 638 | struct internal_syment *last_file = (struct internal_syment *) NULL; |
075caafd ILT |
639 | unsigned int symbol_index; |
640 | ||
641 | /* COFF demands that undefined symbols come after all other symbols. | |
c7e76b5e ILT |
642 | Since we don't need to impose this extra knowledge on all our |
643 | client programs, deal with that here. Sort the symbol table; | |
644 | just move the undefined symbols to the end, leaving the rest | |
645 | alone. The O'Reilly book says that defined global symbols come | |
646 | at the end before the undefined symbols, so we do that here as | |
647 | well. */ | |
075caafd ILT |
648 | /* @@ Do we have some condition we could test for, so we don't always |
649 | have to do this? I don't think relocatability is quite right, but | |
650 | I'm not certain. [raeburn:19920508.1711EST] */ | |
651 | { | |
652 | asymbol **newsyms; | |
ae115e51 | 653 | unsigned int i; |
075caafd | 654 | |
f5d3fb75 FF |
655 | newsyms = (asymbol **) bfd_alloc (bfd_ptr, |
656 | sizeof (asymbol *) * (symbol_count + 1)); | |
9783e04a | 657 | if (!newsyms) |
a9713b91 | 658 | return false; |
075caafd ILT |
659 | bfd_ptr->outsymbols = newsyms; |
660 | for (i = 0; i < symbol_count; i++) | |
5f710a3a ILT |
661 | if ((symbol_ptr_ptr[i]->flags & BSF_NOT_AT_END) != 0 |
662 | || (!bfd_is_und_section (symbol_ptr_ptr[i]->section) | |
7938b4cb | 663 | && !bfd_is_com_section (symbol_ptr_ptr[i]->section) |
5f710a3a ILT |
664 | && ((symbol_ptr_ptr[i]->flags & (BSF_GLOBAL | BSF_FUNCTION)) |
665 | != BSF_GLOBAL))) | |
075caafd | 666 | *newsyms++ = symbol_ptr_ptr[i]; |
c7e76b5e ILT |
667 | |
668 | for (i = 0; i < symbol_count; i++) | |
f5d3fb75 FF |
669 | if ((symbol_ptr_ptr[i]->flags & BSF_NOT_AT_END) == 0 |
670 | && !bfd_is_und_section (symbol_ptr_ptr[i]->section) | |
7938b4cb | 671 | && (bfd_is_com_section (symbol_ptr_ptr[i]->section) |
f5d3fb75 | 672 | || ((symbol_ptr_ptr[i]->flags & (BSF_GLOBAL | BSF_FUNCTION)) |
7938b4cb | 673 | == BSF_GLOBAL))) |
c7e76b5e ILT |
674 | *newsyms++ = symbol_ptr_ptr[i]; |
675 | ||
676 | *first_undef = newsyms - bfd_ptr->outsymbols; | |
677 | ||
075caafd | 678 | for (i = 0; i < symbol_count; i++) |
5f710a3a ILT |
679 | if ((symbol_ptr_ptr[i]->flags & BSF_NOT_AT_END) == 0 |
680 | && bfd_is_und_section (symbol_ptr_ptr[i]->section)) | |
075caafd ILT |
681 | *newsyms++ = symbol_ptr_ptr[i]; |
682 | *newsyms = (asymbol *) NULL; | |
683 | symbol_ptr_ptr = bfd_ptr->outsymbols; | |
684 | } | |
685 | ||
686 | for (symbol_index = 0; symbol_index < symbol_count; symbol_index++) | |
6dc6a81a ILT |
687 | { |
688 | coff_symbol_type *coff_symbol_ptr = coff_symbol_from (bfd_ptr, symbol_ptr_ptr[symbol_index]); | |
c7e76b5e | 689 | symbol_ptr_ptr[symbol_index]->udata.i = symbol_index; |
6dc6a81a ILT |
690 | if (coff_symbol_ptr && coff_symbol_ptr->native) |
691 | { | |
075caafd ILT |
692 | combined_entry_type *s = coff_symbol_ptr->native; |
693 | int i; | |
694 | ||
695 | if (s->u.syment.n_sclass == C_FILE) | |
6dc6a81a ILT |
696 | { |
697 | if (last_file != (struct internal_syment *) NULL) | |
698 | last_file->n_value = native_index; | |
699 | last_file = &(s->u.syment); | |
700 | } | |
701 | else | |
702 | { | |
703 | ||
704 | /* Modify the symbol values according to their section and | |
705 | type */ | |
706 | ||
f5d3fb75 | 707 | fixup_symbol_value (bfd_ptr, coff_symbol_ptr, &(s->u.syment)); |
6dc6a81a ILT |
708 | } |
709 | for (i = 0; i < s->u.syment.n_numaux + 1; i++) | |
710 | s[i].offset = native_index++; | |
075caafd | 711 | } |
6dc6a81a ILT |
712 | else |
713 | { | |
075caafd ILT |
714 | native_index++; |
715 | } | |
6dc6a81a | 716 | } |
075caafd | 717 | obj_conv_table_size (bfd_ptr) = native_index; |
c7e76b5e | 718 | |
9783e04a | 719 | return true; |
075caafd ILT |
720 | } |
721 | ||
6dc6a81a ILT |
722 | /* Run thorough the symbol table again, and fix it so that all |
723 | pointers to entries are changed to the entries' index in the output | |
724 | symbol table. */ | |
075caafd | 725 | |
075caafd | 726 | void |
9783e04a DM |
727 | coff_mangle_symbols (bfd_ptr) |
728 | bfd *bfd_ptr; | |
075caafd | 729 | { |
9783e04a | 730 | unsigned int symbol_count = bfd_get_symcount (bfd_ptr); |
075caafd ILT |
731 | asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols; |
732 | unsigned int symbol_index; | |
733 | ||
734 | for (symbol_index = 0; symbol_index < symbol_count; symbol_index++) | |
9783e04a DM |
735 | { |
736 | coff_symbol_type *coff_symbol_ptr = | |
6dc6a81a | 737 | coff_symbol_from (bfd_ptr, symbol_ptr_ptr[symbol_index]); |
075caafd | 738 | |
9783e04a DM |
739 | if (coff_symbol_ptr && coff_symbol_ptr->native) |
740 | { | |
075caafd ILT |
741 | int i; |
742 | combined_entry_type *s = coff_symbol_ptr->native; | |
743 | ||
9783e04a DM |
744 | if (s->fix_value) |
745 | { | |
746 | /* FIXME: We should use a union here. */ | |
747 | s->u.syment.n_value = | |
748 | ((combined_entry_type *) s->u.syment.n_value)->offset; | |
749 | s->fix_value = 0; | |
075caafd | 750 | } |
49488f2b ILT |
751 | if (s->fix_line) |
752 | { | |
753 | /* The value is the offset into the line number entries | |
754 | for the symbol's section. On output, the symbol's | |
755 | section should be N_DEBUG. */ | |
756 | s->u.syment.n_value = | |
757 | (coff_symbol_ptr->symbol.section->output_section->line_filepos | |
758 | + s->u.syment.n_value * bfd_coff_linesz (bfd_ptr)); | |
759 | coff_symbol_ptr->symbol.section = | |
760 | coff_section_from_bfd_index (bfd_ptr, N_DEBUG); | |
761 | BFD_ASSERT (coff_symbol_ptr->symbol.flags & BSF_DEBUGGING); | |
762 | } | |
6dc6a81a | 763 | for (i = 0; i < s->u.syment.n_numaux; i++) |
9783e04a DM |
764 | { |
765 | combined_entry_type *a = s + i + 1; | |
766 | if (a->fix_tag) | |
767 | { | |
768 | a->u.auxent.x_sym.x_tagndx.l = | |
769 | a->u.auxent.x_sym.x_tagndx.p->offset; | |
770 | a->fix_tag = 0; | |
771 | } | |
772 | if (a->fix_end) | |
773 | { | |
774 | a->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l = | |
775 | a->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p->offset; | |
776 | a->fix_end = 0; | |
777 | } | |
778 | if (a->fix_scnlen) | |
779 | { | |
780 | a->u.auxent.x_csect.x_scnlen.l = | |
781 | a->u.auxent.x_csect.x_scnlen.p->offset; | |
782 | a->fix_scnlen = 0; | |
783 | } | |
075caafd | 784 | } |
075caafd | 785 | } |
9783e04a | 786 | } |
075caafd ILT |
787 | } |
788 | ||
075caafd | 789 | static void |
f0500a41 ILT |
790 | coff_fix_symbol_name (abfd, symbol, native, string_size_p, |
791 | debug_string_section_p, debug_string_size_p) | |
25057836 JL |
792 | bfd *abfd; |
793 | asymbol *symbol; | |
794 | combined_entry_type *native; | |
f0500a41 ILT |
795 | bfd_size_type *string_size_p; |
796 | asection **debug_string_section_p; | |
797 | bfd_size_type *debug_string_size_p; | |
075caafd | 798 | { |
6dc6a81a | 799 | unsigned int name_length; |
075caafd | 800 | union internal_auxent *auxent; |
6dc6a81a | 801 | char *name = (char *) (symbol->name); |
075caafd | 802 | |
6dc6a81a ILT |
803 | if (name == (char *) NULL) |
804 | { | |
805 | /* coff symbols always have names, so we'll make one up */ | |
806 | symbol->name = "strange"; | |
807 | name = (char *) symbol->name; | |
808 | } | |
809 | name_length = strlen (name); | |
075caafd | 810 | |
4372f33f ILT |
811 | if (native->u.syment.n_sclass == C_FILE |
812 | && native->u.syment.n_numaux > 0) | |
6dc6a81a ILT |
813 | { |
814 | strncpy (native->u.syment._n._n_name, ".file", SYMNMLEN); | |
815 | auxent = &(native + 1)->u.auxent; | |
075caafd | 816 | |
6dc6a81a ILT |
817 | if (bfd_coff_long_filenames (abfd)) |
818 | { | |
819 | if (name_length <= FILNMLEN) | |
820 | { | |
821 | strncpy (auxent->x_file.x_fname, name, FILNMLEN); | |
822 | } | |
823 | else | |
824 | { | |
f0500a41 | 825 | auxent->x_file.x_n.x_offset = *string_size_p + STRING_SIZE_SIZE; |
6dc6a81a | 826 | auxent->x_file.x_n.x_zeroes = 0; |
f0500a41 | 827 | *string_size_p += name_length + 1; |
6dc6a81a ILT |
828 | } |
829 | } | |
830 | else | |
831 | { | |
832 | strncpy (auxent->x_file.x_fname, name, FILNMLEN); | |
833 | if (name_length > FILNMLEN) | |
834 | { | |
835 | name[FILNMLEN] = '\0'; | |
836 | } | |
837 | } | |
075caafd | 838 | } |
075caafd | 839 | else |
4372f33f | 840 | { |
9783e04a DM |
841 | if (name_length <= SYMNMLEN) |
842 | { | |
075caafd | 843 | /* This name will fit into the symbol neatly */ |
6dc6a81a | 844 | strncpy (native->u.syment._n._n_name, symbol->name, SYMNMLEN); |
075caafd | 845 | } |
6dc6a81a | 846 | else if (!bfd_coff_symname_in_debug (abfd, &native->u.syment)) |
9783e04a | 847 | { |
f0500a41 ILT |
848 | native->u.syment._n._n_n._n_offset = (*string_size_p |
849 | + STRING_SIZE_SIZE); | |
075caafd | 850 | native->u.syment._n._n_n._n_zeroes = 0; |
f0500a41 | 851 | *string_size_p += name_length + 1; |
075caafd | 852 | } |
9783e04a DM |
853 | else |
854 | { | |
855 | long filepos; | |
856 | bfd_byte buf[2]; | |
857 | ||
858 | /* This name should be written into the .debug section. For | |
859 | some reason each name is preceded by a two byte length | |
860 | and also followed by a null byte. FIXME: We assume that | |
861 | the .debug section has already been created, and that it | |
862 | is large enough. */ | |
f0500a41 ILT |
863 | if (*debug_string_section_p == (asection *) NULL) |
864 | *debug_string_section_p = bfd_get_section_by_name (abfd, ".debug"); | |
9783e04a DM |
865 | filepos = bfd_tell (abfd); |
866 | bfd_put_16 (abfd, name_length + 1, buf); | |
6dc6a81a | 867 | if (!bfd_set_section_contents (abfd, |
f0500a41 | 868 | *debug_string_section_p, |
6dc6a81a | 869 | (PTR) buf, |
f0500a41 | 870 | (file_ptr) *debug_string_size_p, |
6dc6a81a ILT |
871 | (bfd_size_type) 2) |
872 | || !bfd_set_section_contents (abfd, | |
f0500a41 | 873 | *debug_string_section_p, |
6dc6a81a | 874 | (PTR) symbol->name, |
f0500a41 ILT |
875 | ((file_ptr) *debug_string_size_p |
876 | + 2), | |
6dc6a81a | 877 | (bfd_size_type) name_length + 1)) |
9783e04a DM |
878 | abort (); |
879 | if (bfd_seek (abfd, filepos, SEEK_SET) != 0) | |
880 | abort (); | |
f0500a41 | 881 | native->u.syment._n._n_n._n_offset = *debug_string_size_p + 2; |
9783e04a | 882 | native->u.syment._n._n_n._n_zeroes = 0; |
f0500a41 | 883 | *debug_string_size_p += name_length + 3; |
9783e04a DM |
884 | } |
885 | } | |
075caafd ILT |
886 | } |
887 | ||
bfe8224f ILT |
888 | /* We need to keep track of the symbol index so that when we write out |
889 | the relocs we can get the index for a symbol. This method is a | |
890 | hack. FIXME. */ | |
891 | ||
74942465 | 892 | #define set_index(symbol, idx) ((symbol)->udata.i = (idx)) |
bfe8224f ILT |
893 | |
894 | /* Write a symbol out to a COFF file. */ | |
075caafd | 895 | |
bfe8224f | 896 | static boolean |
f0500a41 ILT |
897 | coff_write_symbol (abfd, symbol, native, written, string_size_p, |
898 | debug_string_section_p, debug_string_size_p) | |
25057836 JL |
899 | bfd *abfd; |
900 | asymbol *symbol; | |
901 | combined_entry_type *native; | |
bfe8224f | 902 | unsigned int *written; |
f0500a41 ILT |
903 | bfd_size_type *string_size_p; |
904 | asection **debug_string_section_p; | |
905 | bfd_size_type *debug_string_size_p; | |
075caafd | 906 | { |
bfe8224f ILT |
907 | unsigned int numaux = native->u.syment.n_numaux; |
908 | int type = native->u.syment.n_type; | |
6dc6a81a | 909 | int class = native->u.syment.n_sclass; |
075caafd ILT |
910 | PTR buf; |
911 | bfd_size_type symesz; | |
912 | ||
075caafd | 913 | if (native->u.syment.n_sclass == C_FILE) |
6dc6a81a | 914 | symbol->flags |= BSF_DEBUGGING; |
075caafd | 915 | |
49488f2b ILT |
916 | if (symbol->flags & BSF_DEBUGGING |
917 | && bfd_is_abs_section (symbol->section)) | |
bfe8224f | 918 | { |
6dc6a81a | 919 | native->u.syment.n_scnum = N_DEBUG; |
bfe8224f | 920 | } |
6dc6a81a | 921 | else if (bfd_is_abs_section (symbol->section)) |
bfe8224f | 922 | { |
6dc6a81a | 923 | native->u.syment.n_scnum = N_ABS; |
bfe8224f | 924 | } |
e8fbe6d9 | 925 | else if (bfd_is_und_section (symbol->section)) |
bfe8224f ILT |
926 | { |
927 | native->u.syment.n_scnum = N_UNDEF; | |
928 | } | |
6dc6a81a | 929 | else |
bfe8224f ILT |
930 | { |
931 | native->u.syment.n_scnum = | |
932 | symbol->section->output_section->target_index; | |
933 | } | |
6dc6a81a | 934 | |
f0500a41 ILT |
935 | coff_fix_symbol_name (abfd, symbol, native, string_size_p, |
936 | debug_string_section_p, debug_string_size_p); | |
075caafd ILT |
937 | |
938 | symesz = bfd_coff_symesz (abfd); | |
939 | buf = bfd_alloc (abfd, symesz); | |
9783e04a | 940 | if (!buf) |
a9713b91 | 941 | return false; |
bfe8224f ILT |
942 | bfd_coff_swap_sym_out (abfd, &native->u.syment, buf); |
943 | if (bfd_write (buf, 1, symesz, abfd) != symesz) | |
944 | return false; | |
075caafd ILT |
945 | bfd_release (abfd, buf); |
946 | ||
947 | if (native->u.syment.n_numaux > 0) | |
948 | { | |
949 | bfd_size_type auxesz; | |
950 | unsigned int j; | |
951 | ||
952 | auxesz = bfd_coff_auxesz (abfd); | |
953 | buf = bfd_alloc (abfd, auxesz); | |
9783e04a | 954 | if (!buf) |
a9713b91 | 955 | return false; |
6dc6a81a | 956 | for (j = 0; j < native->u.syment.n_numaux; j++) |
075caafd | 957 | { |
bfe8224f ILT |
958 | bfd_coff_swap_aux_out (abfd, |
959 | &((native + j + 1)->u.auxent), | |
960 | type, | |
961 | class, | |
962 | j, | |
963 | native->u.syment.n_numaux, | |
964 | buf); | |
6dc6a81a | 965 | if (bfd_write (buf, 1, auxesz, abfd) != auxesz) |
bfe8224f | 966 | return false; |
075caafd ILT |
967 | } |
968 | bfd_release (abfd, buf); | |
969 | } | |
bfe8224f ILT |
970 | |
971 | /* Store the index for use when we write out the relocs. */ | |
972 | set_index (symbol, *written); | |
973 | ||
974 | *written += numaux + 1; | |
975 | return true; | |
075caafd ILT |
976 | } |
977 | ||
bfe8224f ILT |
978 | /* Write out a symbol to a COFF file that does not come from a COFF |
979 | file originally. This symbol may have been created by the linker, | |
980 | or we may be linking a non COFF file to a COFF file. */ | |
075caafd | 981 | |
bfe8224f | 982 | static boolean |
f0500a41 ILT |
983 | coff_write_alien_symbol (abfd, symbol, written, string_size_p, |
984 | debug_string_section_p, debug_string_size_p) | |
25057836 JL |
985 | bfd *abfd; |
986 | asymbol *symbol; | |
bfe8224f | 987 | unsigned int *written; |
f0500a41 ILT |
988 | bfd_size_type *string_size_p; |
989 | asection **debug_string_section_p; | |
990 | bfd_size_type *debug_string_size_p; | |
075caafd | 991 | { |
075caafd ILT |
992 | combined_entry_type *native; |
993 | combined_entry_type dummy; | |
bfe8224f | 994 | |
075caafd | 995 | native = &dummy; |
6dc6a81a ILT |
996 | native->u.syment.n_type = T_NULL; |
997 | native->u.syment.n_flags = 0; | |
e8fbe6d9 | 998 | if (bfd_is_und_section (symbol->section)) |
bfe8224f ILT |
999 | { |
1000 | native->u.syment.n_scnum = N_UNDEF; | |
1001 | native->u.syment.n_value = symbol->value; | |
075caafd | 1002 | } |
e61cfdf8 | 1003 | else if (bfd_is_com_section (symbol->section)) |
bfe8224f ILT |
1004 | { |
1005 | native->u.syment.n_scnum = N_UNDEF; | |
1006 | native->u.syment.n_value = symbol->value; | |
075caafd | 1007 | } |
bfe8224f | 1008 | else if (symbol->flags & BSF_DEBUGGING) |
075caafd | 1009 | { |
a74d1517 ILT |
1010 | /* There isn't much point to writing out a debugging symbol |
1011 | unless we are prepared to convert it into COFF debugging | |
715cde57 ILT |
1012 | format. So, we just ignore them. We must clobber the symbol |
1013 | name to keep it from being put in the string table. */ | |
1014 | symbol->name = ""; | |
a74d1517 | 1015 | return true; |
075caafd | 1016 | } |
bfe8224f ILT |
1017 | else |
1018 | { | |
1019 | native->u.syment.n_scnum = | |
1020 | symbol->section->output_section->target_index; | |
1021 | native->u.syment.n_value = (symbol->value | |
bfe8224f | 1022 | + symbol->section->output_offset); |
f5d3fb75 FF |
1023 | if (! obj_pe (abfd)) |
1024 | native->u.syment.n_value += symbol->section->output_section->vma; | |
bfe8224f ILT |
1025 | |
1026 | /* Copy the any flags from the the file header into the symbol. | |
6dc6a81a | 1027 | FIXME: Why? */ |
bfe8224f ILT |
1028 | { |
1029 | coff_symbol_type *c = coff_symbol_from (abfd, symbol); | |
1030 | if (c != (coff_symbol_type *) NULL) | |
1031 | native->u.syment.n_flags = bfd_asymbol_bfd (&c->symbol)->flags; | |
1032 | } | |
075caafd ILT |
1033 | } |
1034 | ||
bfe8224f | 1035 | native->u.syment.n_type = 0; |
075caafd | 1036 | if (symbol->flags & BSF_LOCAL) |
bfe8224f | 1037 | native->u.syment.n_sclass = C_STAT; |
075caafd | 1038 | else |
bfe8224f ILT |
1039 | native->u.syment.n_sclass = C_EXT; |
1040 | native->u.syment.n_numaux = 0; | |
075caafd | 1041 | |
f0500a41 ILT |
1042 | return coff_write_symbol (abfd, symbol, native, written, string_size_p, |
1043 | debug_string_section_p, debug_string_size_p); | |
075caafd ILT |
1044 | } |
1045 | ||
bfe8224f ILT |
1046 | /* Write a native symbol to a COFF file. */ |
1047 | ||
1048 | static boolean | |
f0500a41 ILT |
1049 | coff_write_native_symbol (abfd, symbol, written, string_size_p, |
1050 | debug_string_section_p, debug_string_size_p) | |
25057836 JL |
1051 | bfd *abfd; |
1052 | coff_symbol_type *symbol; | |
bfe8224f | 1053 | unsigned int *written; |
f0500a41 ILT |
1054 | bfd_size_type *string_size_p; |
1055 | asection **debug_string_section_p; | |
1056 | bfd_size_type *debug_string_size_p; | |
075caafd | 1057 | { |
075caafd | 1058 | combined_entry_type *native = symbol->native; |
bfe8224f | 1059 | alent *lineno = symbol->lineno; |
075caafd | 1060 | |
bfe8224f ILT |
1061 | /* If this symbol has an associated line number, we must store the |
1062 | symbol index in the line number field. We also tag the auxent to | |
1063 | point to the right place in the lineno table. */ | |
d7731c7d | 1064 | if (lineno && !symbol->done_lineno && symbol->symbol.section->owner != NULL) |
bfe8224f ILT |
1065 | { |
1066 | unsigned int count = 0; | |
1067 | lineno[count].u.offset = *written; | |
1068 | if (native->u.syment.n_numaux) | |
1069 | { | |
6dc6a81a | 1070 | union internal_auxent *a = &((native + 1)->u.auxent); |
075caafd | 1071 | |
bfe8224f ILT |
1072 | a->x_sym.x_fcnary.x_fcn.x_lnnoptr = |
1073 | symbol->symbol.section->output_section->moving_line_filepos; | |
1074 | } | |
075caafd | 1075 | |
bfe8224f ILT |
1076 | /* Count and relocate all other linenumbers. */ |
1077 | count++; | |
1078 | while (lineno[count].line_number != 0) | |
1079 | { | |
075caafd | 1080 | #if 0 |
bfe8224f ILT |
1081 | /* 13 april 92. sac |
1082 | I've been told this, but still need proof: | |
1083 | > The second bug is also in `bfd/coffcode.h'. This bug | |
1084 | > causes the linker to screw up the pc-relocations for | |
1085 | > all the line numbers in COFF code. This bug isn't only | |
1086 | > specific to A29K implementations, but affects all | |
1087 | > systems using COFF format binaries. Note that in COFF | |
1088 | > object files, the line number core offsets output by | |
1089 | > the assembler are relative to the start of each | |
1090 | > procedure, not to the start of the .text section. This | |
1091 | > patch relocates the line numbers relative to the | |
1092 | > `native->u.syment.n_value' instead of the section | |
1093 | > virtual address. | |
1094 | > modular!olson@cs.arizona.edu (Jon Olson) | |
6dc6a81a | 1095 | */ |
bfe8224f | 1096 | lineno[count].u.offset += native->u.syment.n_value; |
075caafd | 1097 | #else |
bfe8224f ILT |
1098 | lineno[count].u.offset += |
1099 | (symbol->symbol.section->output_section->vma | |
1100 | + symbol->symbol.section->output_offset); | |
075caafd | 1101 | #endif |
bfe8224f ILT |
1102 | count++; |
1103 | } | |
1104 | symbol->done_lineno = true; | |
6dc6a81a | 1105 | |
bfe8224f ILT |
1106 | symbol->symbol.section->output_section->moving_line_filepos += |
1107 | count * bfd_coff_linesz (abfd); | |
1108 | } | |
1109 | ||
f0500a41 ILT |
1110 | return coff_write_symbol (abfd, &(symbol->symbol), native, written, |
1111 | string_size_p, debug_string_section_p, | |
1112 | debug_string_size_p); | |
075caafd ILT |
1113 | } |
1114 | ||
bfe8224f ILT |
1115 | /* Write out the COFF symbols. */ |
1116 | ||
1117 | boolean | |
25057836 | 1118 | coff_write_symbols (abfd) |
bfe8224f | 1119 | bfd *abfd; |
075caafd | 1120 | { |
f0500a41 ILT |
1121 | bfd_size_type string_size; |
1122 | asection *debug_string_section; | |
1123 | bfd_size_type debug_string_size; | |
bfe8224f | 1124 | unsigned int i; |
6dc6a81a | 1125 | unsigned int limit = bfd_get_symcount (abfd); |
bfe8224f ILT |
1126 | unsigned int written = 0; |
1127 | asymbol **p; | |
075caafd ILT |
1128 | |
1129 | string_size = 0; | |
f0500a41 | 1130 | debug_string_section = NULL; |
9783e04a | 1131 | debug_string_size = 0; |
075caafd | 1132 | |
f5d3fb75 FF |
1133 | /* If this target supports long section names, they must be put into |
1134 | the string table. This is supported by PE. This code must | |
1135 | handle section names just as they are handled in | |
1136 | coff_write_object_contents. */ | |
1137 | if (bfd_coff_long_section_names (abfd)) | |
1138 | { | |
1139 | asection *o; | |
1140 | ||
1141 | for (o = abfd->sections; o != NULL; o = o->next) | |
1142 | { | |
1143 | size_t len; | |
1144 | ||
1145 | len = strlen (o->name); | |
1146 | if (len > SCNNMLEN) | |
1147 | string_size += len + 1; | |
1148 | } | |
1149 | } | |
1150 | ||
075caafd | 1151 | /* Seek to the right place */ |
6dc6a81a | 1152 | if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0) |
bfe8224f | 1153 | return false; |
075caafd ILT |
1154 | |
1155 | /* Output all the symbols we have */ | |
1156 | ||
1157 | written = 0; | |
1158 | for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) | |
bfe8224f ILT |
1159 | { |
1160 | asymbol *symbol = *p; | |
1161 | coff_symbol_type *c_symbol = coff_symbol_from (abfd, symbol); | |
075caafd | 1162 | |
bfe8224f | 1163 | if (c_symbol == (coff_symbol_type *) NULL |
6dc6a81a | 1164 | || c_symbol->native == (combined_entry_type *) NULL) |
bfe8224f | 1165 | { |
f0500a41 ILT |
1166 | if (!coff_write_alien_symbol (abfd, symbol, &written, &string_size, |
1167 | &debug_string_section, | |
1168 | &debug_string_size)) | |
bfe8224f ILT |
1169 | return false; |
1170 | } | |
1171 | else | |
1172 | { | |
f0500a41 ILT |
1173 | if (!coff_write_native_symbol (abfd, c_symbol, &written, |
1174 | &string_size, &debug_string_section, | |
1175 | &debug_string_size)) | |
bfe8224f ILT |
1176 | return false; |
1177 | } | |
1178 | } | |
075caafd | 1179 | |
74942465 ILT |
1180 | obj_raw_syment_count (abfd) = written; |
1181 | ||
075caafd ILT |
1182 | /* Now write out strings */ |
1183 | ||
1184 | if (string_size != 0) | |
6dc6a81a ILT |
1185 | { |
1186 | unsigned int size = string_size + STRING_SIZE_SIZE; | |
1187 | bfd_byte buffer[STRING_SIZE_SIZE]; | |
075caafd | 1188 | |
9fbe895a | 1189 | #if STRING_SIZE_SIZE == 4 |
6dc6a81a | 1190 | bfd_h_put_32 (abfd, size, buffer); |
9fbe895a ILT |
1191 | #else |
1192 | #error Change bfd_h_put_32 | |
1193 | #endif | |
6dc6a81a ILT |
1194 | if (bfd_write ((PTR) buffer, 1, sizeof (buffer), abfd) != sizeof (buffer)) |
1195 | return false; | |
f5d3fb75 FF |
1196 | |
1197 | /* Handle long section names. This code must handle section | |
1198 | names just as they are handled in coff_write_object_contents. */ | |
1199 | if (bfd_coff_long_section_names (abfd)) | |
1200 | { | |
1201 | asection *o; | |
1202 | ||
1203 | for (o = abfd->sections; o != NULL; o = o->next) | |
1204 | { | |
1205 | size_t len; | |
1206 | ||
1207 | len = strlen (o->name); | |
1208 | if (len > SCNNMLEN) | |
1209 | { | |
1210 | if (bfd_write (o->name, 1, len + 1, abfd) != len + 1) | |
1211 | return false; | |
1212 | } | |
1213 | } | |
1214 | } | |
1215 | ||
6dc6a81a ILT |
1216 | for (p = abfd->outsymbols, i = 0; |
1217 | i < limit; | |
1218 | i++, p++) | |
1219 | { | |
1220 | asymbol *q = *p; | |
1221 | size_t name_length = strlen (q->name); | |
1222 | coff_symbol_type *c_symbol = coff_symbol_from (abfd, q); | |
1223 | size_t maxlen; | |
1224 | ||
1225 | /* Figure out whether the symbol name should go in the string | |
1226 | table. Symbol names that are short enough are stored | |
1227 | directly in the syment structure. File names permit a | |
1228 | different, longer, length in the syment structure. On | |
1229 | XCOFF, some symbol names are stored in the .debug section | |
1230 | rather than in the string table. */ | |
1231 | ||
1232 | if (c_symbol == NULL | |
1233 | || c_symbol->native == NULL) | |
1234 | { | |
1235 | /* This is not a COFF symbol, so it certainly is not a | |
1236 | file name, nor does it go in the .debug section. */ | |
1237 | maxlen = SYMNMLEN; | |
1238 | } | |
1239 | else if (bfd_coff_symname_in_debug (abfd, | |
1240 | &c_symbol->native->u.syment)) | |
1241 | { | |
1242 | /* This symbol name is in the XCOFF .debug section. | |
1243 | Don't write it into the string table. */ | |
1244 | maxlen = name_length; | |
1245 | } | |
4372f33f ILT |
1246 | else if (c_symbol->native->u.syment.n_sclass == C_FILE |
1247 | && c_symbol->native->u.syment.n_numaux > 0) | |
6dc6a81a ILT |
1248 | maxlen = FILNMLEN; |
1249 | else | |
1250 | maxlen = SYMNMLEN; | |
1251 | ||
1252 | if (name_length > maxlen) | |
1253 | { | |
1254 | if (bfd_write ((PTR) (q->name), 1, name_length + 1, abfd) | |
1255 | != name_length + 1) | |
1256 | return false; | |
1257 | } | |
1258 | } | |
1259 | } | |
bfe8224f ILT |
1260 | else |
1261 | { | |
1262 | /* We would normally not write anything here, but we'll write | |
6dc6a81a ILT |
1263 | out 4 so that any stupid coff reader which tries to read the |
1264 | string table even when there isn't one won't croak. */ | |
9fbe895a ILT |
1265 | unsigned int size = STRING_SIZE_SIZE; |
1266 | bfd_byte buffer[STRING_SIZE_SIZE]; | |
bfe8224f | 1267 | |
9fbe895a | 1268 | #if STRING_SIZE_SIZE == 4 |
bfe8224f | 1269 | bfd_h_put_32 (abfd, size, buffer); |
9fbe895a ILT |
1270 | #else |
1271 | #error Change bfd_h_put_32 | |
1272 | #endif | |
1273 | if (bfd_write ((PTR) buffer, 1, STRING_SIZE_SIZE, abfd) | |
1274 | != STRING_SIZE_SIZE) | |
bfe8224f ILT |
1275 | return false; |
1276 | } | |
9783e04a | 1277 | |
bfe8224f ILT |
1278 | /* Make sure the .debug section was created to be the correct size. |
1279 | We should create it ourselves on the fly, but we don't because | |
1280 | BFD won't let us write to any section until we know how large all | |
1281 | the sections are. We could still do it by making another pass | |
1282 | over the symbols. FIXME. */ | |
9783e04a DM |
1283 | BFD_ASSERT (debug_string_size == 0 |
1284 | || (debug_string_section != (asection *) NULL | |
1285 | && (BFD_ALIGN (debug_string_size, | |
1286 | 1 << debug_string_section->alignment_power) | |
1287 | == bfd_section_size (abfd, debug_string_section)))); | |
bfe8224f ILT |
1288 | |
1289 | return true; | |
075caafd ILT |
1290 | } |
1291 | ||
9783e04a | 1292 | boolean |
25057836 | 1293 | coff_write_linenumbers (abfd) |
6dc6a81a | 1294 | bfd *abfd; |
075caafd | 1295 | { |
6dc6a81a | 1296 | asection *s; |
075caafd ILT |
1297 | bfd_size_type linesz; |
1298 | PTR buff; | |
1299 | ||
1300 | linesz = bfd_coff_linesz (abfd); | |
1301 | buff = bfd_alloc (abfd, linesz); | |
9783e04a | 1302 | if (!buff) |
a9713b91 | 1303 | return false; |
6dc6a81a ILT |
1304 | for (s = abfd->sections; s != (asection *) NULL; s = s->next) |
1305 | { | |
1306 | if (s->lineno_count) | |
1307 | { | |
1308 | asymbol **q = abfd->outsymbols; | |
1309 | if (bfd_seek (abfd, s->line_filepos, SEEK_SET) != 0) | |
1310 | return false; | |
1311 | /* Find all the linenumbers in this section */ | |
1312 | while (*q) | |
1313 | { | |
1314 | asymbol *p = *q; | |
1315 | if (p->section->output_section == s) | |
1316 | { | |
1317 | alent *l = | |
1318 | BFD_SEND (bfd_asymbol_bfd (p), _get_lineno, | |
1319 | (bfd_asymbol_bfd (p), p)); | |
1320 | if (l) | |
1321 | { | |
1322 | /* Found a linenumber entry, output */ | |
1323 | struct internal_lineno out; | |
1324 | memset ((PTR) & out, 0, sizeof (out)); | |
1325 | out.l_lnno = 0; | |
1326 | out.l_addr.l_symndx = l->u.offset; | |
1327 | bfd_coff_swap_lineno_out (abfd, &out, buff); | |
1328 | if (bfd_write (buff, 1, linesz, abfd) != linesz) | |
1329 | return false; | |
1330 | l++; | |
1331 | while (l->line_number) | |
1332 | { | |
1333 | out.l_lnno = l->line_number; | |
1334 | out.l_addr.l_symndx = l->u.offset; | |
1335 | bfd_coff_swap_lineno_out (abfd, &out, buff); | |
1336 | if (bfd_write (buff, 1, linesz, abfd) != linesz) | |
1337 | return false; | |
1338 | l++; | |
1339 | } | |
1340 | } | |
1341 | } | |
1342 | q++; | |
27f524a3 | 1343 | } |
075caafd | 1344 | } |
075caafd | 1345 | } |
075caafd | 1346 | bfd_release (abfd, buff); |
9783e04a | 1347 | return true; |
075caafd ILT |
1348 | } |
1349 | ||
6dc6a81a ILT |
1350 | /*ARGSUSED */ |
1351 | alent * | |
25057836 | 1352 | coff_get_lineno (ignore_abfd, symbol) |
6dc6a81a ILT |
1353 | bfd *ignore_abfd; |
1354 | asymbol *symbol; | |
075caafd | 1355 | { |
6dc6a81a | 1356 | return coffsymbol (symbol)->lineno; |
075caafd ILT |
1357 | } |
1358 | ||
8230f31c ILT |
1359 | #if 0 |
1360 | ||
1361 | /* This is only called from coff_add_missing_symbols, which has been | |
1362 | disabled. */ | |
1363 | ||
075caafd ILT |
1364 | asymbol * |
1365 | coff_section_symbol (abfd, name) | |
1366 | bfd *abfd; | |
1367 | char *name; | |
1368 | { | |
1369 | asection *sec = bfd_make_section_old_way (abfd, name); | |
1370 | asymbol *sym; | |
1371 | combined_entry_type *csym; | |
1372 | ||
1373 | sym = sec->symbol; | |
4c3721d5 | 1374 | csym = coff_symbol_from (abfd, sym)->native; |
075caafd ILT |
1375 | /* Make sure back-end COFF stuff is there. */ |
1376 | if (csym == 0) | |
1377 | { | |
6dc6a81a ILT |
1378 | struct foo |
1379 | { | |
1380 | coff_symbol_type sym; | |
1381 | /* @@FIXME This shouldn't use a fixed size!! */ | |
1382 | combined_entry_type e[10]; | |
1383 | }; | |
075caafd | 1384 | struct foo *f; |
f5d3fb75 | 1385 | f = (struct foo *) bfd_alloc (abfd, sizeof (*f)); |
9783e04a DM |
1386 | if (!f) |
1387 | { | |
d1ad85a6 | 1388 | bfd_set_error (bfd_error_no_error); |
9783e04a DM |
1389 | return NULL; |
1390 | } | |
075caafd ILT |
1391 | memset ((char *) f, 0, sizeof (*f)); |
1392 | coff_symbol_from (abfd, sym)->native = csym = f->e; | |
1393 | } | |
1394 | csym[0].u.syment.n_sclass = C_STAT; | |
1395 | csym[0].u.syment.n_numaux = 1; | |
6dc6a81a | 1396 | /* SF_SET_STATICS (sym); @@ ??? */ |
4c3721d5 ILT |
1397 | csym[1].u.auxent.x_scn.x_scnlen = sec->_raw_size; |
1398 | csym[1].u.auxent.x_scn.x_nreloc = sec->reloc_count; | |
1399 | csym[1].u.auxent.x_scn.x_nlinno = sec->lineno_count; | |
1400 | ||
1401 | if (sec->output_section == NULL) | |
075caafd | 1402 | { |
4c3721d5 ILT |
1403 | sec->output_section = sec; |
1404 | sec->output_offset = 0; | |
075caafd | 1405 | } |
4c3721d5 | 1406 | |
075caafd ILT |
1407 | return sym; |
1408 | } | |
1409 | ||
8230f31c ILT |
1410 | #endif /* 0 */ |
1411 | ||
075caafd ILT |
1412 | /* This function transforms the offsets into the symbol table into |
1413 | pointers to syments. */ | |
1414 | ||
1415 | static void | |
c80cc833 | 1416 | coff_pointerize_aux (abfd, table_base, symbol, indaux, auxent) |
25057836 JL |
1417 | bfd *abfd; |
1418 | combined_entry_type *table_base; | |
c80cc833 ILT |
1419 | combined_entry_type *symbol; |
1420 | unsigned int indaux; | |
25057836 | 1421 | combined_entry_type *auxent; |
075caafd | 1422 | { |
c80cc833 ILT |
1423 | int type = symbol->u.syment.n_type; |
1424 | int class = symbol->u.syment.n_sclass; | |
1425 | ||
1426 | if (coff_backend_info (abfd)->_bfd_coff_pointerize_aux_hook) | |
1427 | { | |
1428 | if ((*coff_backend_info (abfd)->_bfd_coff_pointerize_aux_hook) | |
1429 | (abfd, table_base, symbol, indaux, auxent)) | |
1430 | return; | |
1431 | } | |
1432 | ||
075caafd | 1433 | /* Don't bother if this is a file or a section */ |
6dc6a81a ILT |
1434 | if (class == C_STAT && type == T_NULL) |
1435 | return; | |
1436 | if (class == C_FILE) | |
1437 | return; | |
075caafd ILT |
1438 | |
1439 | /* Otherwise patch up */ | |
1440 | #define N_TMASK coff_data (abfd)->local_n_tmask | |
1441 | #define N_BTSHFT coff_data (abfd)->local_n_btshft | |
d6e0e2f7 | 1442 | if ((ISFCN (type) || ISTAG (class) || class == C_BLOCK || class == C_FCN) |
69645d10 ILT |
1443 | && auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l > 0) |
1444 | { | |
1445 | auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p = | |
c80cc833 | 1446 | table_base + auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l; |
075caafd ILT |
1447 | auxent->fix_end = 1; |
1448 | } | |
1449 | /* A negative tagndx is meaningless, but the SCO 3.2v4 cc can | |
1450 | generate one, so we must be careful to ignore it. */ | |
6dc6a81a ILT |
1451 | if (auxent->u.auxent.x_sym.x_tagndx.l > 0) |
1452 | { | |
075caafd | 1453 | auxent->u.auxent.x_sym.x_tagndx.p = |
6dc6a81a | 1454 | table_base + auxent->u.auxent.x_sym.x_tagndx.l; |
075caafd ILT |
1455 | auxent->fix_tag = 1; |
1456 | } | |
1457 | } | |
1458 | ||
075caafd ILT |
1459 | /* Allocate space for the ".debug" section, and read it. |
1460 | We did not read the debug section until now, because | |
1461 | we didn't want to go to the trouble until someone needed it. */ | |
1462 | ||
1463 | static char * | |
25057836 JL |
1464 | build_debug_section (abfd) |
1465 | bfd *abfd; | |
075caafd ILT |
1466 | { |
1467 | char *debug_section; | |
1468 | long position; | |
1469 | ||
1470 | asection *sect = bfd_get_section_by_name (abfd, ".debug"); | |
1471 | ||
6dc6a81a ILT |
1472 | if (!sect) |
1473 | { | |
1474 | bfd_set_error (bfd_error_no_debug_section); | |
1475 | return NULL; | |
1476 | } | |
075caafd ILT |
1477 | |
1478 | debug_section = (PTR) bfd_alloc (abfd, | |
1479 | bfd_get_section_size_before_reloc (sect)); | |
6dc6a81a | 1480 | if (debug_section == NULL) |
a9713b91 | 1481 | return NULL; |
075caafd ILT |
1482 | |
1483 | /* Seek to the beginning of the `.debug' section and read it. | |
1484 | Save the current position first; it is needed by our caller. | |
1485 | Then read debug section and reset the file pointer. */ | |
1486 | ||
1487 | position = bfd_tell (abfd); | |
c16313f0 | 1488 | if (bfd_seek (abfd, sect->filepos, SEEK_SET) != 0 |
6dc6a81a | 1489 | || (bfd_read (debug_section, |
c16313f0 | 1490 | bfd_get_section_size_before_reloc (sect), 1, abfd) |
6dc6a81a | 1491 | != bfd_get_section_size_before_reloc (sect)) |
c16313f0 | 1492 | || bfd_seek (abfd, position, SEEK_SET) != 0) |
075caafd | 1493 | return NULL; |
075caafd ILT |
1494 | return debug_section; |
1495 | } | |
1496 | ||
1497 | ||
1498 | /* Return a pointer to a malloc'd copy of 'name'. 'name' may not be | |
6dc6a81a ILT |
1499 | \0-terminated, but will not exceed 'maxlen' characters. The copy *will* |
1500 | be \0-terminated. */ | |
075caafd | 1501 | static char * |
25057836 JL |
1502 | copy_name (abfd, name, maxlen) |
1503 | bfd *abfd; | |
1504 | char *name; | |
1505 | int maxlen; | |
075caafd | 1506 | { |
6dc6a81a | 1507 | int len; |
075caafd ILT |
1508 | char *newname; |
1509 | ||
6dc6a81a ILT |
1510 | for (len = 0; len < maxlen; ++len) |
1511 | { | |
1512 | if (name[len] == '\0') | |
1513 | { | |
1514 | break; | |
1515 | } | |
075caafd | 1516 | } |
075caafd | 1517 | |
6dc6a81a | 1518 | if ((newname = (PTR) bfd_alloc (abfd, len + 1)) == NULL) |
a9713b91 | 1519 | return (NULL); |
6dc6a81a | 1520 | strncpy (newname, name, len); |
075caafd ILT |
1521 | newname[len] = '\0'; |
1522 | return newname; | |
1523 | } | |
1524 | ||
ae115e51 ILT |
1525 | /* Read in the external symbols. */ |
1526 | ||
1527 | boolean | |
1528 | _bfd_coff_get_external_symbols (abfd) | |
1529 | bfd *abfd; | |
1530 | { | |
1531 | bfd_size_type symesz; | |
1532 | size_t size; | |
1533 | PTR syms; | |
1534 | ||
1535 | if (obj_coff_external_syms (abfd) != NULL) | |
1536 | return true; | |
1537 | ||
1538 | symesz = bfd_coff_symesz (abfd); | |
1539 | ||
1540 | size = obj_raw_syment_count (abfd) * symesz; | |
1541 | ||
58142f10 | 1542 | syms = (PTR) bfd_malloc (size); |
ae115e51 | 1543 | if (syms == NULL && size != 0) |
58142f10 | 1544 | return false; |
ae115e51 ILT |
1545 | |
1546 | if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0 | |
1547 | || bfd_read (syms, size, 1, abfd) != size) | |
1548 | { | |
1549 | if (syms != NULL) | |
1550 | free (syms); | |
1551 | return false; | |
1552 | } | |
1553 | ||
1554 | obj_coff_external_syms (abfd) = syms; | |
1555 | ||
1556 | return true; | |
1557 | } | |
1558 | ||
1559 | /* Read in the external strings. The strings are not loaded until | |
1560 | they are needed. This is because we have no simple way of | |
1561 | detecting a missing string table in an archive. */ | |
1562 | ||
1563 | const char * | |
1564 | _bfd_coff_read_string_table (abfd) | |
1565 | bfd *abfd; | |
1566 | { | |
1567 | char extstrsize[STRING_SIZE_SIZE]; | |
1568 | size_t strsize; | |
1569 | char *strings; | |
1570 | ||
1571 | if (obj_coff_strings (abfd) != NULL) | |
1572 | return obj_coff_strings (abfd); | |
1573 | ||
f5d3fb75 FF |
1574 | if (obj_sym_filepos (abfd) == 0) |
1575 | { | |
1576 | bfd_set_error (bfd_error_no_symbols); | |
1577 | return NULL; | |
1578 | } | |
1579 | ||
ae115e51 ILT |
1580 | if (bfd_seek (abfd, |
1581 | (obj_sym_filepos (abfd) | |
1582 | + obj_raw_syment_count (abfd) * bfd_coff_symesz (abfd)), | |
1583 | SEEK_SET) != 0) | |
1584 | return NULL; | |
1585 | ||
1586 | if (bfd_read (extstrsize, sizeof extstrsize, 1, abfd) != sizeof extstrsize) | |
1587 | { | |
1588 | if (bfd_get_error () != bfd_error_file_truncated) | |
1589 | return NULL; | |
1590 | ||
1591 | /* There is no string table. */ | |
1592 | strsize = STRING_SIZE_SIZE; | |
1593 | } | |
1594 | else | |
1595 | { | |
1596 | #if STRING_SIZE_SIZE == 4 | |
1597 | strsize = bfd_h_get_32 (abfd, (bfd_byte *) extstrsize); | |
1598 | #else | |
1599 | #error Change bfd_h_get_32 | |
1600 | #endif | |
1601 | } | |
1602 | ||
90a7abbc ILT |
1603 | if (strsize < STRING_SIZE_SIZE) |
1604 | { | |
1605 | (*_bfd_error_handler) | |
1606 | ("%s: bad string table size %lu", bfd_get_filename (abfd), | |
1607 | (unsigned long) strsize); | |
1608 | bfd_set_error (bfd_error_bad_value); | |
1609 | return NULL; | |
1610 | } | |
1611 | ||
58142f10 | 1612 | strings = (char *) bfd_malloc (strsize); |
ae115e51 | 1613 | if (strings == NULL) |
58142f10 | 1614 | return NULL; |
ae115e51 ILT |
1615 | |
1616 | if (bfd_read (strings + STRING_SIZE_SIZE, | |
1617 | strsize - STRING_SIZE_SIZE, 1, abfd) | |
1618 | != strsize - STRING_SIZE_SIZE) | |
1619 | { | |
1620 | free (strings); | |
1621 | return NULL; | |
1622 | } | |
1623 | ||
1624 | obj_coff_strings (abfd) = strings; | |
1625 | ||
1626 | return strings; | |
1627 | } | |
1628 | ||
1629 | /* Free up the external symbols and strings read from a COFF file. */ | |
1630 | ||
1631 | boolean | |
1632 | _bfd_coff_free_symbols (abfd) | |
1633 | bfd *abfd; | |
1634 | { | |
1635 | if (obj_coff_external_syms (abfd) != NULL | |
1636 | && ! obj_coff_keep_syms (abfd)) | |
1637 | { | |
1638 | free (obj_coff_external_syms (abfd)); | |
1639 | obj_coff_external_syms (abfd) = NULL; | |
1640 | } | |
1641 | if (obj_coff_strings (abfd) != NULL | |
1642 | && ! obj_coff_keep_strings (abfd)) | |
1643 | { | |
1644 | free (obj_coff_strings (abfd)); | |
1645 | obj_coff_strings (abfd) = NULL; | |
1646 | } | |
1647 | return true; | |
1648 | } | |
1649 | ||
075caafd ILT |
1650 | /* Read a symbol table into freshly bfd_allocated memory, swap it, and |
1651 | knit the symbol names into a normalized form. By normalized here I | |
1652 | mean that all symbols have an n_offset pointer that points to a null- | |
1653 | terminated string. */ | |
1654 | ||
1655 | combined_entry_type * | |
25057836 | 1656 | coff_get_normalized_symtab (abfd) |
6dc6a81a | 1657 | bfd *abfd; |
075caafd | 1658 | { |
6dc6a81a ILT |
1659 | combined_entry_type *internal; |
1660 | combined_entry_type *internal_ptr; | |
1661 | combined_entry_type *symbol_ptr; | |
1662 | combined_entry_type *internal_end; | |
075caafd | 1663 | bfd_size_type symesz; |
075caafd ILT |
1664 | char *raw_src; |
1665 | char *raw_end; | |
ae115e51 | 1666 | const char *string_table = NULL; |
6dc6a81a ILT |
1667 | char *debug_section = NULL; |
1668 | unsigned long size; | |
075caafd | 1669 | |
74942465 ILT |
1670 | if (obj_raw_syments (abfd) != NULL) |
1671 | return obj_raw_syments (abfd); | |
1672 | ||
1673 | size = obj_raw_syment_count (abfd) * sizeof (combined_entry_type); | |
34c4d647 | 1674 | internal = (combined_entry_type *) bfd_zalloc (abfd, size); |
74942465 | 1675 | if (internal == NULL && size != 0) |
a9713b91 | 1676 | return NULL; |
69645d10 | 1677 | internal_end = internal + obj_raw_syment_count (abfd); |
075caafd | 1678 | |
ae115e51 | 1679 | if (! _bfd_coff_get_external_symbols (abfd)) |
74942465 ILT |
1680 | return NULL; |
1681 | ||
ae115e51 ILT |
1682 | raw_src = (char *) obj_coff_external_syms (abfd); |
1683 | ||
075caafd | 1684 | /* mark the end of the symbols */ |
ae115e51 ILT |
1685 | symesz = bfd_coff_symesz (abfd); |
1686 | raw_end = (char *) raw_src + obj_raw_syment_count (abfd) * symesz; | |
74942465 | 1687 | |
6dc6a81a ILT |
1688 | /* FIXME SOMEDAY. A string table size of zero is very weird, but |
1689 | probably possible. If one shows up, it will probably kill us. */ | |
075caafd ILT |
1690 | |
1691 | /* Swap all the raw entries */ | |
ae115e51 | 1692 | for (internal_ptr = internal; |
075caafd | 1693 | raw_src < raw_end; |
6dc6a81a ILT |
1694 | raw_src += symesz, internal_ptr++) |
1695 | { | |
075caafd ILT |
1696 | |
1697 | unsigned int i; | |
6dc6a81a ILT |
1698 | bfd_coff_swap_sym_in (abfd, (PTR) raw_src, |
1699 | (PTR) & internal_ptr->u.syment); | |
075caafd | 1700 | symbol_ptr = internal_ptr; |
85fe7cff | 1701 | |
075caafd ILT |
1702 | for (i = 0; |
1703 | i < symbol_ptr->u.syment.n_numaux; | |
6dc6a81a | 1704 | i++) |
075caafd | 1705 | { |
6dc6a81a ILT |
1706 | internal_ptr++; |
1707 | raw_src += symesz; | |
6dc6a81a ILT |
1708 | bfd_coff_swap_aux_in (abfd, (PTR) raw_src, |
1709 | symbol_ptr->u.syment.n_type, | |
1710 | symbol_ptr->u.syment.n_sclass, | |
1711 | i, symbol_ptr->u.syment.n_numaux, | |
1712 | &(internal_ptr->u.auxent)); | |
c80cc833 ILT |
1713 | coff_pointerize_aux (abfd, internal, symbol_ptr, i, |
1714 | internal_ptr); | |
6dc6a81a | 1715 | } |
075caafd ILT |
1716 | } |
1717 | ||
ae115e51 ILT |
1718 | /* Free the raw symbols, but not the strings (if we have them). */ |
1719 | obj_coff_keep_strings (abfd) = true; | |
1720 | if (! _bfd_coff_free_symbols (abfd)) | |
1721 | return NULL; | |
075caafd ILT |
1722 | |
1723 | for (internal_ptr = internal; internal_ptr < internal_end; | |
6dc6a81a ILT |
1724 | internal_ptr++) |
1725 | { | |
1726 | if (internal_ptr->u.syment.n_sclass == C_FILE | |
1727 | && internal_ptr->u.syment.n_numaux > 0) | |
1728 | { | |
1729 | /* make a file symbol point to the name in the auxent, since | |
1730 | the text ".file" is redundant */ | |
1731 | if ((internal_ptr + 1)->u.auxent.x_file.x_n.x_zeroes == 0) | |
1732 | { | |
1733 | /* the filename is a long one, point into the string table */ | |
1734 | if (string_table == NULL) | |
ae115e51 ILT |
1735 | { |
1736 | string_table = _bfd_coff_read_string_table (abfd); | |
1737 | if (string_table == NULL) | |
1738 | return NULL; | |
1739 | } | |
075caafd | 1740 | |
6dc6a81a | 1741 | internal_ptr->u.syment._n._n_n._n_offset = |
ae115e51 ILT |
1742 | ((long) |
1743 | (string_table | |
1744 | + (internal_ptr + 1)->u.auxent.x_file.x_n.x_offset)); | |
6dc6a81a ILT |
1745 | } |
1746 | else | |
1747 | { | |
1748 | /* ordinary short filename, put into memory anyway */ | |
1749 | internal_ptr->u.syment._n._n_n._n_offset = (long) | |
1750 | copy_name (abfd, (internal_ptr + 1)->u.auxent.x_file.x_fname, | |
1751 | FILNMLEN); | |
1752 | } | |
1753 | } | |
1754 | else | |
1755 | { | |
1756 | if (internal_ptr->u.syment._n._n_n._n_zeroes != 0) | |
1757 | { | |
1758 | /* This is a "short" name. Make it long. */ | |
1759 | unsigned long i = 0; | |
1760 | char *newstring = NULL; | |
1761 | ||
1762 | /* find the length of this string without walking into memory | |
1763 | that isn't ours. */ | |
1764 | for (i = 0; i < 8; ++i) | |
1765 | { | |
1766 | if (internal_ptr->u.syment._n._n_name[i] == '\0') | |
1767 | { | |
1768 | break; | |
1769 | } /* if end of string */ | |
1770 | } /* possible lengths of this string. */ | |
1771 | ||
1772 | if ((newstring = (PTR) bfd_alloc (abfd, ++i)) == NULL) | |
a9713b91 | 1773 | return (NULL); |
6dc6a81a ILT |
1774 | memset (newstring, 0, i); |
1775 | strncpy (newstring, internal_ptr->u.syment._n._n_name, i - 1); | |
1776 | internal_ptr->u.syment._n._n_n._n_offset = (long int) newstring; | |
1777 | internal_ptr->u.syment._n._n_n._n_zeroes = 0; | |
1778 | } | |
1779 | else if (internal_ptr->u.syment._n._n_n._n_offset == 0) | |
1780 | internal_ptr->u.syment._n._n_n._n_offset = (long int) ""; | |
1781 | else if (!bfd_coff_symname_in_debug (abfd, &internal_ptr->u.syment)) | |
1782 | { | |
1783 | /* Long name already. Point symbol at the string in the | |
1784 | table. */ | |
1785 | if (string_table == NULL) | |
ae115e51 ILT |
1786 | { |
1787 | string_table = _bfd_coff_read_string_table (abfd); | |
1788 | if (string_table == NULL) | |
1789 | return NULL; | |
1790 | } | |
1791 | internal_ptr->u.syment._n._n_n._n_offset = | |
1792 | ((long int) | |
1793 | (string_table | |
1794 | + internal_ptr->u.syment._n._n_n._n_offset)); | |
6dc6a81a ILT |
1795 | } |
1796 | else | |
1797 | { | |
1798 | /* Long name in debug section. Very similar. */ | |
1799 | if (debug_section == NULL) | |
1800 | debug_section = build_debug_section (abfd); | |
1801 | internal_ptr->u.syment._n._n_n._n_offset = (long int) | |
1802 | (debug_section + internal_ptr->u.syment._n._n_n._n_offset); | |
1803 | } | |
1804 | } | |
1805 | internal_ptr += internal_ptr->u.syment.n_numaux; | |
1806 | } | |
1807 | ||
1808 | obj_raw_syments (abfd) = internal; | |
ae115e51 ILT |
1809 | BFD_ASSERT (obj_raw_syment_count (abfd) |
1810 | == (unsigned int) (internal_ptr - internal)); | |
075caafd ILT |
1811 | |
1812 | return (internal); | |
1813 | } /* coff_get_normalized_symtab() */ | |
1814 | ||
326e32d7 | 1815 | long |
25057836 | 1816 | coff_get_reloc_upper_bound (abfd, asect) |
6dc6a81a ILT |
1817 | bfd *abfd; |
1818 | sec_ptr asect; | |
075caafd | 1819 | { |
6dc6a81a ILT |
1820 | if (bfd_get_format (abfd) != bfd_object) |
1821 | { | |
1822 | bfd_set_error (bfd_error_invalid_operation); | |
1823 | return -1; | |
1824 | } | |
1825 | return (asect->reloc_count + 1) * sizeof (arelent *); | |
075caafd ILT |
1826 | } |
1827 | ||
1828 | asymbol * | |
25057836 | 1829 | coff_make_empty_symbol (abfd) |
6dc6a81a | 1830 | bfd *abfd; |
075caafd | 1831 | { |
6dc6a81a ILT |
1832 | coff_symbol_type *new = (coff_symbol_type *) bfd_alloc (abfd, sizeof (coff_symbol_type)); |
1833 | if (new == NULL) | |
a9713b91 | 1834 | return (NULL); |
9783e04a | 1835 | memset (new, 0, sizeof *new); |
075caafd ILT |
1836 | new->symbol.section = 0; |
1837 | new->native = 0; | |
1838 | new->lineno = (alent *) NULL; | |
1839 | new->done_lineno = false; | |
1840 | new->symbol.the_bfd = abfd; | |
1841 | return &new->symbol; | |
1842 | } | |
1843 | ||
2d1e6c9c KR |
1844 | /* Make a debugging symbol. */ |
1845 | ||
075caafd | 1846 | asymbol * |
2d1e6c9c KR |
1847 | coff_bfd_make_debug_symbol (abfd, ptr, sz) |
1848 | bfd *abfd; | |
1849 | PTR ptr; | |
1850 | unsigned long sz; | |
075caafd | 1851 | { |
6dc6a81a ILT |
1852 | coff_symbol_type *new = (coff_symbol_type *) bfd_alloc (abfd, sizeof (coff_symbol_type)); |
1853 | if (new == NULL) | |
a9713b91 | 1854 | return (NULL); |
1d8eda7a DE |
1855 | /* @@ The 10 is a guess at a plausible maximum number of aux entries |
1856 | (but shouldn't be a constant). */ | |
075caafd | 1857 | new->native = (combined_entry_type *) bfd_zalloc (abfd, sizeof (combined_entry_type) * 10); |
9783e04a | 1858 | if (!new->native) |
a9713b91 | 1859 | return (NULL); |
6dc6a81a ILT |
1860 | new->symbol.section = bfd_abs_section_ptr; |
1861 | new->symbol.flags = BSF_DEBUGGING; | |
075caafd ILT |
1862 | new->lineno = (alent *) NULL; |
1863 | new->done_lineno = false; | |
1864 | new->symbol.the_bfd = abfd; | |
1865 | return &new->symbol; | |
1866 | } | |
1867 | ||
6dc6a81a | 1868 | /*ARGSUSED */ |
2d1e6c9c KR |
1869 | void |
1870 | coff_get_symbol_info (abfd, symbol, ret) | |
1871 | bfd *abfd; | |
1872 | asymbol *symbol; | |
1873 | symbol_info *ret; | |
1874 | { | |
1875 | bfd_symbol_info (symbol, ret); | |
867d923d ILT |
1876 | if (coffsymbol (symbol)->native != NULL |
1877 | && coffsymbol (symbol)->native->fix_value) | |
1878 | { | |
1879 | combined_entry_type *psym; | |
1880 | ||
1881 | psym = ((combined_entry_type *) | |
1882 | coffsymbol (symbol)->native->u.syment.n_value); | |
1883 | ret->value = (bfd_vma) (psym - obj_raw_syments (abfd)); | |
1884 | } | |
2d1e6c9c KR |
1885 | } |
1886 | ||
a2d914e1 ILT |
1887 | /* Return the COFF syment for a symbol. */ |
1888 | ||
1889 | boolean | |
1890 | bfd_coff_get_syment (abfd, symbol, psyment) | |
1891 | bfd *abfd; | |
1892 | asymbol *symbol; | |
1893 | struct internal_syment *psyment; | |
1894 | { | |
1895 | coff_symbol_type *csym; | |
1896 | ||
1897 | csym = coff_symbol_from (abfd, symbol); | |
1898 | if (csym == NULL || csym->native == NULL) | |
1899 | { | |
1900 | bfd_set_error (bfd_error_invalid_operation); | |
1901 | return false; | |
1902 | } | |
1903 | ||
1904 | *psyment = csym->native->u.syment; | |
1905 | ||
1906 | if (csym->native->fix_value) | |
1907 | psyment->n_value = ((combined_entry_type *) psyment->n_value | |
1908 | - obj_raw_syments (abfd)); | |
1909 | ||
1910 | /* FIXME: We should handle fix_line here. */ | |
1911 | ||
1912 | return true; | |
1913 | } | |
1914 | ||
1915 | /* Return the COFF auxent for a symbol. */ | |
1916 | ||
1917 | boolean | |
1918 | bfd_coff_get_auxent (abfd, symbol, indx, pauxent) | |
1919 | bfd *abfd; | |
1920 | asymbol *symbol; | |
1921 | int indx; | |
1922 | union internal_auxent *pauxent; | |
1923 | { | |
1924 | coff_symbol_type *csym; | |
1925 | combined_entry_type *ent; | |
1926 | ||
1927 | csym = coff_symbol_from (abfd, symbol); | |
1928 | ||
1929 | if (csym == NULL | |
1930 | || csym->native == NULL | |
1931 | || indx >= csym->native->u.syment.n_numaux) | |
1932 | { | |
1933 | bfd_set_error (bfd_error_invalid_operation); | |
1934 | return false; | |
1935 | } | |
1936 | ||
1937 | ent = csym->native + indx + 1; | |
1938 | ||
1939 | *pauxent = ent->u.auxent; | |
1940 | ||
1941 | if (ent->fix_tag) | |
1942 | pauxent->x_sym.x_tagndx.l = | |
1943 | ((combined_entry_type *) pauxent->x_sym.x_tagndx.p | |
1944 | - obj_raw_syments (abfd)); | |
1945 | ||
1946 | if (ent->fix_end) | |
1947 | pauxent->x_sym.x_fcnary.x_fcn.x_endndx.l = | |
1948 | ((combined_entry_type *) pauxent->x_sym.x_fcnary.x_fcn.x_endndx.p | |
1949 | - obj_raw_syments (abfd)); | |
1950 | ||
1951 | if (ent->fix_scnlen) | |
1952 | pauxent->x_csect.x_scnlen.l = | |
1953 | ((combined_entry_type *) pauxent->x_csect.x_scnlen.p | |
1954 | - obj_raw_syments (abfd)); | |
1955 | ||
1956 | return true; | |
1957 | } | |
1958 | ||
e61cfdf8 ILT |
1959 | /* Print out information about COFF symbol. */ |
1960 | ||
075caafd | 1961 | void |
e61cfdf8 ILT |
1962 | coff_print_symbol (abfd, filep, symbol, how) |
1963 | bfd *abfd; | |
1964 | PTR filep; | |
1965 | asymbol *symbol; | |
1966 | bfd_print_symbol_type how; | |
075caafd | 1967 | { |
e61cfdf8 ILT |
1968 | FILE *file = (FILE *) filep; |
1969 | ||
1970 | switch (how) | |
1971 | { | |
075caafd | 1972 | case bfd_print_symbol_name: |
e61cfdf8 | 1973 | fprintf (file, "%s", symbol->name); |
075caafd | 1974 | break; |
e61cfdf8 | 1975 | |
075caafd | 1976 | case bfd_print_symbol_more: |
e61cfdf8 | 1977 | fprintf (file, "coff %s %s", |
6dc6a81a ILT |
1978 | coffsymbol (symbol)->native ? "n" : "g", |
1979 | coffsymbol (symbol)->lineno ? "l" : " "); | |
075caafd | 1980 | break; |
075caafd | 1981 | |
e61cfdf8 | 1982 | case bfd_print_symbol_all: |
6dc6a81a | 1983 | if (coffsymbol (symbol)->native) |
075caafd | 1984 | { |
49488f2b | 1985 | unsigned long val; |
e61cfdf8 ILT |
1986 | unsigned int aux; |
1987 | combined_entry_type *combined = coffsymbol (symbol)->native; | |
1988 | combined_entry_type *root = obj_raw_syments (abfd); | |
6dc6a81a ILT |
1989 | struct lineno_cache_entry *l = coffsymbol (symbol)->lineno; |
1990 | ||
1991 | fprintf (file, "[%3ld]", (long) (combined - root)); | |
e61cfdf8 | 1992 | |
49488f2b ILT |
1993 | if (! combined->fix_value) |
1994 | val = (unsigned long) combined->u.syment.n_value; | |
1995 | else | |
1996 | val = ((unsigned long) | |
1997 | ((combined_entry_type *) combined->u.syment.n_value | |
1998 | - root)); | |
1999 | ||
e61cfdf8 | 2000 | fprintf (file, |
6dc6a81a | 2001 | "(sec %2d)(fl 0x%02x)(ty %3x)(scl %3d) (nx %d) 0x%08lx %s", |
e61cfdf8 ILT |
2002 | combined->u.syment.n_scnum, |
2003 | combined->u.syment.n_flags, | |
2004 | combined->u.syment.n_type, | |
2005 | combined->u.syment.n_sclass, | |
2006 | combined->u.syment.n_numaux, | |
49488f2b | 2007 | val, |
e61cfdf8 ILT |
2008 | symbol->name); |
2009 | ||
6dc6a81a | 2010 | for (aux = 0; aux < combined->u.syment.n_numaux; aux++) |
e61cfdf8 ILT |
2011 | { |
2012 | combined_entry_type *auxp = combined + aux + 1; | |
2013 | long tagndx; | |
2014 | ||
2015 | if (auxp->fix_tag) | |
2016 | tagndx = auxp->u.auxent.x_sym.x_tagndx.p - root; | |
2017 | else | |
2018 | tagndx = auxp->u.auxent.x_sym.x_tagndx.l; | |
2019 | ||
2020 | fprintf (file, "\n"); | |
0fc9ada9 ILT |
2021 | |
2022 | if (bfd_coff_print_aux (abfd, file, root, combined, auxp, aux)) | |
2023 | continue; | |
2024 | ||
e61cfdf8 ILT |
2025 | switch (combined->u.syment.n_sclass) |
2026 | { | |
2027 | case C_FILE: | |
2028 | fprintf (file, "File "); | |
2029 | break; | |
e61cfdf8 | 2030 | |
de733a0e KR |
2031 | case C_STAT: |
2032 | if (combined->u.syment.n_type == T_NULL) | |
2033 | /* probably a section symbol? */ | |
2034 | { | |
2035 | fprintf (file, "AUX scnlen 0x%lx nreloc %d nlnno %d", | |
2036 | (long) auxp->u.auxent.x_scn.x_scnlen, | |
2037 | auxp->u.auxent.x_scn.x_nreloc, | |
2038 | auxp->u.auxent.x_scn.x_nlinno); | |
8230f31c ILT |
2039 | if (auxp->u.auxent.x_scn.x_checksum != 0 |
2040 | || auxp->u.auxent.x_scn.x_associated != 0 | |
2041 | || auxp->u.auxent.x_scn.x_comdat != 0) | |
5a28331f | 2042 | fprintf (file, " checksum 0x%lx assoc %d comdat %d", |
8230f31c ILT |
2043 | auxp->u.auxent.x_scn.x_checksum, |
2044 | auxp->u.auxent.x_scn.x_associated, | |
2045 | auxp->u.auxent.x_scn.x_comdat); | |
de733a0e KR |
2046 | break; |
2047 | } | |
2048 | /* else fall through */ | |
2049 | ||
2050 | default: | |
4c3721d5 | 2051 | fprintf (file, "AUX lnno %d size 0x%x tagndx %ld", |
e61cfdf8 ILT |
2052 | auxp->u.auxent.x_sym.x_misc.x_lnsz.x_lnno, |
2053 | auxp->u.auxent.x_sym.x_misc.x_lnsz.x_size, | |
2054 | tagndx); | |
69645d10 ILT |
2055 | if (auxp->fix_end) |
2056 | fprintf (file, " endndx %ld", | |
2057 | ((long) | |
2058 | (auxp->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p | |
2059 | - root))); | |
e61cfdf8 ILT |
2060 | break; |
2061 | } | |
075caafd | 2062 | } |
6dc6a81a | 2063 | |
e61cfdf8 ILT |
2064 | if (l) |
2065 | { | |
e4b6b3e7 | 2066 | fprintf (file, "\n%s :", l->u.sym->name); |
e61cfdf8 | 2067 | l++; |
6dc6a81a | 2068 | while (l->line_number) |
e61cfdf8 | 2069 | { |
4c3721d5 ILT |
2070 | fprintf (file, "\n%4d : 0x%lx", |
2071 | l->line_number, | |
2072 | ((unsigned long) | |
2073 | (l->u.offset + symbol->section->vma))); | |
e61cfdf8 ILT |
2074 | l++; |
2075 | } | |
2076 | } | |
6dc6a81a | 2077 | } |
e61cfdf8 | 2078 | else |
075caafd | 2079 | { |
e61cfdf8 ILT |
2080 | bfd_print_symbol_vandf ((PTR) file, symbol); |
2081 | fprintf (file, " %-5s %s %s %s", | |
2082 | symbol->section->name, | |
6dc6a81a ILT |
2083 | coffsymbol (symbol)->native ? "n" : "g", |
2084 | coffsymbol (symbol)->lineno ? "l" : " ", | |
e61cfdf8 | 2085 | symbol->name); |
075caafd | 2086 | } |
075caafd ILT |
2087 | } |
2088 | } | |
2089 | ||
f5d3fb75 FF |
2090 | /* Return whether a symbol name implies a local symbol. In COFF, |
2091 | local symbols generally start with ``.L''. Most targets use this | |
2092 | function for the is_local_label_name entry point, but some may | |
2093 | override it. */ | |
2094 | ||
2095 | boolean | |
2096 | _bfd_coff_is_local_label_name (abfd, name) | |
2097 | bfd *abfd; | |
2098 | const char *name; | |
2099 | { | |
79a682fd | 2100 | return name[0] == '.' && name[1] == 'L'; |
f5d3fb75 FF |
2101 | } |
2102 | ||
075caafd ILT |
2103 | /* Provided a BFD, a section and an offset into the section, calculate |
2104 | and return the name of the source file and the line nearest to the | |
2105 | wanted location. */ | |
2106 | ||
330595d0 | 2107 | /*ARGSUSED*/ |
075caafd | 2108 | boolean |
34c4d647 | 2109 | coff_find_nearest_line (abfd, section, symbols, offset, filename_ptr, |
25057836 | 2110 | functionname_ptr, line_ptr) |
6dc6a81a ILT |
2111 | bfd *abfd; |
2112 | asection *section; | |
34c4d647 | 2113 | asymbol **symbols; |
6dc6a81a ILT |
2114 | bfd_vma offset; |
2115 | CONST char **filename_ptr; | |
2116 | CONST char **functionname_ptr; | |
2117 | unsigned int *line_ptr; | |
075caafd | 2118 | { |
34c4d647 | 2119 | boolean found; |
a74d1517 | 2120 | unsigned int i; |
25b5a53d | 2121 | unsigned int line_base; |
6dc6a81a | 2122 | coff_data_type *cof = coff_data (abfd); |
075caafd ILT |
2123 | /* Run through the raw syments if available */ |
2124 | combined_entry_type *p; | |
a74d1517 | 2125 | combined_entry_type *pend; |
6dc6a81a | 2126 | alent *l; |
25b5a53d | 2127 | struct coff_section_tdata *sec_data; |
075caafd | 2128 | |
34c4d647 DE |
2129 | /* Before looking through the symbol table, try to use a .stab |
2130 | section to find the information. */ | |
2131 | if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, | |
2132 | &found, filename_ptr, | |
2133 | functionname_ptr, line_ptr, | |
2134 | &coff_data (abfd)->line_info)) | |
2135 | return false; | |
2136 | if (found) | |
2137 | return true; | |
2138 | ||
075caafd ILT |
2139 | *filename_ptr = 0; |
2140 | *functionname_ptr = 0; | |
2141 | *line_ptr = 0; | |
2142 | ||
2143 | /* Don't try and find line numbers in a non coff file */ | |
2144 | if (abfd->xvec->flavour != bfd_target_coff_flavour) | |
2145 | return false; | |
2146 | ||
2147 | if (cof == NULL) | |
2148 | return false; | |
2149 | ||
a74d1517 | 2150 | /* Find the first C_FILE symbol. */ |
075caafd | 2151 | p = cof->raw_syments; |
f5d3fb75 FF |
2152 | if (!p) |
2153 | return false; | |
2154 | ||
a74d1517 ILT |
2155 | pend = p + cof->raw_syment_count; |
2156 | while (p < pend) | |
2157 | { | |
2158 | if (p->u.syment.n_sclass == C_FILE) | |
2159 | break; | |
2160 | p += 1 + p->u.syment.n_numaux; | |
2161 | } | |
075caafd | 2162 | |
a74d1517 ILT |
2163 | if (p < pend) |
2164 | { | |
6d04c6d4 ILT |
2165 | bfd_vma maxdiff; |
2166 | ||
a74d1517 | 2167 | /* Look through the C_FILE symbols to find the best one. */ |
075caafd | 2168 | *filename_ptr = (char *) p->u.syment._n._n_n._n_offset; |
6d04c6d4 | 2169 | maxdiff = (bfd_vma) 0 - (bfd_vma) 1; |
a74d1517 ILT |
2170 | while (1) |
2171 | { | |
2172 | combined_entry_type *p2; | |
2173 | ||
6d04c6d4 ILT |
2174 | for (p2 = p + 1 + p->u.syment.n_numaux; |
2175 | p2 < pend; | |
2176 | p2 += 1 + p2->u.syment.n_numaux) | |
a74d1517 | 2177 | { |
6d04c6d4 ILT |
2178 | if (p2->u.syment.n_scnum > 0 |
2179 | && (section | |
2180 | == coff_section_from_bfd_index (abfd, | |
2181 | p2->u.syment.n_scnum))) | |
a74d1517 | 2182 | break; |
6d04c6d4 ILT |
2183 | if (p2->u.syment.n_sclass == C_FILE) |
2184 | { | |
2185 | p2 = pend; | |
2186 | break; | |
2187 | } | |
a74d1517 | 2188 | } |
6d04c6d4 | 2189 | |
a74d1517 | 2190 | if (p2 < pend |
ae115e51 ILT |
2191 | && offset >= (bfd_vma) p2->u.syment.n_value |
2192 | && offset - (bfd_vma) p2->u.syment.n_value < maxdiff) | |
6d04c6d4 ILT |
2193 | { |
2194 | *filename_ptr = (char *) p->u.syment._n._n_n._n_offset; | |
2195 | maxdiff = offset - p2->u.syment.n_value; | |
2196 | } | |
2197 | ||
2198 | /* Avoid endless loops on erroneous files by ensuring that | |
2199 | we always move forward in the file. */ | |
2200 | if (p - cof->raw_syments >= p->u.syment.n_value) | |
a74d1517 ILT |
2201 | break; |
2202 | ||
6d04c6d4 ILT |
2203 | p = cof->raw_syments + p->u.syment.n_value; |
2204 | if (p > pend || p->u.syment.n_sclass != C_FILE) | |
2205 | break; | |
a74d1517 | 2206 | } |
075caafd | 2207 | } |
a74d1517 | 2208 | |
075caafd | 2209 | /* Now wander though the raw linenumbers of the section */ |
25b5a53d ILT |
2210 | /* If we have been called on this section before, and the offset we |
2211 | want is further down then we can prime the lookup loop. */ | |
2212 | sec_data = coff_section_data (abfd, section); | |
2213 | if (sec_data != NULL | |
2214 | && sec_data->i > 0 | |
2215 | && offset >= sec_data->offset) | |
2216 | { | |
2217 | i = sec_data->i; | |
2218 | *functionname_ptr = sec_data->function; | |
2219 | line_base = sec_data->line_base; | |
6dc6a81a ILT |
2220 | } |
2221 | else | |
2222 | { | |
2223 | i = 0; | |
25b5a53d | 2224 | line_base = 0; |
6dc6a81a | 2225 | } |
25b5a53d | 2226 | |
34c4d647 | 2227 | if (section->lineno != NULL) |
6dc6a81a | 2228 | { |
34c4d647 DE |
2229 | l = §ion->lineno[i]; |
2230 | ||
2231 | for (; i < section->lineno_count; i++) | |
6dc6a81a | 2232 | { |
34c4d647 | 2233 | if (l->line_number == 0) |
6dc6a81a | 2234 | { |
34c4d647 DE |
2235 | /* Get the symbol this line number points at */ |
2236 | coff_symbol_type *coff = (coff_symbol_type *) (l->u.sym); | |
2237 | if (coff->symbol.value > offset) | |
2238 | break; | |
2239 | *functionname_ptr = coff->symbol.name; | |
2240 | if (coff->native) | |
6dc6a81a | 2241 | { |
34c4d647 DE |
2242 | combined_entry_type *s = coff->native; |
2243 | s = s + 1 + s->u.syment.n_numaux; | |
2244 | ||
2245 | /* In XCOFF a debugging symbol can follow the | |
2246 | function symbol. */ | |
2247 | if (s->u.syment.n_scnum == N_DEBUG) | |
2248 | s = s + 1 + s->u.syment.n_numaux; | |
2249 | ||
2250 | /* S should now point to the .bf of the function. */ | |
2251 | if (s->u.syment.n_numaux) | |
2252 | { | |
2253 | /* The linenumber is stored in the auxent. */ | |
2254 | union internal_auxent *a = &((s + 1)->u.auxent); | |
2255 | line_base = a->x_sym.x_misc.x_lnsz.x_lnno; | |
2256 | *line_ptr = line_base; | |
2257 | } | |
6dc6a81a ILT |
2258 | } |
2259 | } | |
34c4d647 DE |
2260 | else |
2261 | { | |
2262 | if (l->u.offset + bfd_get_section_vma (abfd, section) > offset) | |
2263 | break; | |
2264 | *line_ptr = l->line_number + line_base - 1; | |
2265 | } | |
2266 | l++; | |
075caafd | 2267 | } |
075caafd | 2268 | } |
075caafd | 2269 | |
25b5a53d | 2270 | /* Cache the results for the next call. */ |
45ca3195 | 2271 | if (sec_data == NULL && section->owner == abfd) |
25b5a53d ILT |
2272 | { |
2273 | section->used_by_bfd = | |
2274 | ((PTR) bfd_zalloc (abfd, | |
2275 | sizeof (struct coff_section_tdata))); | |
867d923d | 2276 | sec_data = (struct coff_section_tdata *) section->used_by_bfd; |
25b5a53d ILT |
2277 | } |
2278 | if (sec_data != NULL) | |
2279 | { | |
2280 | sec_data->offset = offset; | |
2281 | sec_data->i = i; | |
2282 | sec_data->function = *functionname_ptr; | |
2283 | sec_data->line_base = line_base; | |
2284 | } | |
075caafd ILT |
2285 | |
2286 | return true; | |
2287 | } | |
2288 | ||
2289 | int | |
25057836 JL |
2290 | coff_sizeof_headers (abfd, reloc) |
2291 | bfd *abfd; | |
2292 | boolean reloc; | |
075caafd | 2293 | { |
6dc6a81a | 2294 | size_t size; |
075caafd | 2295 | |
6dc6a81a ILT |
2296 | if (reloc == false) |
2297 | { | |
2298 | size = bfd_coff_filhsz (abfd) + bfd_coff_aoutsz (abfd); | |
075caafd | 2299 | } |
6dc6a81a ILT |
2300 | else |
2301 | { | |
2302 | size = bfd_coff_filhsz (abfd); | |
075caafd ILT |
2303 | } |
2304 | ||
6dc6a81a ILT |
2305 | size += abfd->section_count * bfd_coff_scnhsz (abfd); |
2306 | return size; | |
075caafd | 2307 | } |