Commit | Line | Data |
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252b5132 | 1 | /* Support for the generic parts of COFF, for BFD. |
7898deda | 2 | Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
3db64b00 | 3 | 2000, 2001, 2002, 2003, 2004, 2005, 2007 |
252b5132 RH |
4 | Free Software Foundation, Inc. |
5 | Written by Cygnus Support. | |
6 | ||
c8e7bf0d | 7 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 8 | |
c8e7bf0d NC |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c8e7bf0d | 12 | (at your option) any later version. |
252b5132 | 13 | |
c8e7bf0d NC |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
252b5132 | 18 | |
c8e7bf0d NC |
19 | You should have received a copy of the GNU General Public License |
20 | along with this program; if not, write to the Free Software | |
cd123cb7 NC |
21 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
22 | MA 02110-1301, USA. */ | |
252b5132 RH |
23 | |
24 | /* Most of this hacked by Steve Chamberlain, sac@cygnus.com. | |
25 | Split out of coffcode.h by Ian Taylor, ian@cygnus.com. */ | |
26 | ||
27 | /* This file contains COFF code that is not dependent on any | |
28 | particular COFF target. There is only one version of this file in | |
29 | libbfd.a, so no target specific code may be put in here. Or, to | |
30 | put it another way, | |
31 | ||
32 | ********** DO NOT PUT TARGET SPECIFIC CODE IN THIS FILE ********** | |
33 | ||
34 | If you need to add some target specific behaviour, add a new hook | |
35 | function to bfd_coff_backend_data. | |
36 | ||
37 | Some of these functions are also called by the ECOFF routines. | |
38 | Those functions may not use any COFF specific information, such as | |
39 | coff_data (abfd). */ | |
40 | ||
252b5132 | 41 | #include "sysdep.h" |
3db64b00 | 42 | #include "bfd.h" |
252b5132 RH |
43 | #include "libbfd.h" |
44 | #include "coff/internal.h" | |
45 | #include "libcoff.h" | |
46 | ||
252b5132 RH |
47 | /* Take a section header read from a coff file (in HOST byte order), |
48 | and make a BFD "section" out of it. This is used by ECOFF. */ | |
c8e7bf0d | 49 | |
b34976b6 | 50 | static bfd_boolean |
c8e7bf0d NC |
51 | make_a_section_from_file (bfd *abfd, |
52 | struct internal_scnhdr *hdr, | |
53 | unsigned int target_index) | |
252b5132 RH |
54 | { |
55 | asection *return_section; | |
56 | char *name; | |
b34976b6 | 57 | bfd_boolean result = TRUE; |
7c8ca0e4 | 58 | flagword flags; |
252b5132 RH |
59 | |
60 | name = NULL; | |
61 | ||
62 | /* Handle long section names as in PE. */ | |
63 | if (bfd_coff_long_section_names (abfd) | |
64 | && hdr->s_name[0] == '/') | |
65 | { | |
66 | char buf[SCNNMLEN]; | |
67 | long strindex; | |
68 | char *p; | |
69 | const char *strings; | |
70 | ||
71 | memcpy (buf, hdr->s_name + 1, SCNNMLEN - 1); | |
72 | buf[SCNNMLEN - 1] = '\0'; | |
73 | strindex = strtol (buf, &p, 10); | |
74 | if (*p == '\0' && strindex >= 0) | |
75 | { | |
76 | strings = _bfd_coff_read_string_table (abfd); | |
77 | if (strings == NULL) | |
b34976b6 | 78 | return FALSE; |
252b5132 RH |
79 | /* FIXME: For extra safety, we should make sure that |
80 | strindex does not run us past the end, but right now we | |
81 | don't know the length of the string table. */ | |
82 | strings += strindex; | |
dc810e39 | 83 | name = bfd_alloc (abfd, (bfd_size_type) strlen (strings) + 1); |
252b5132 | 84 | if (name == NULL) |
b34976b6 | 85 | return FALSE; |
252b5132 RH |
86 | strcpy (name, strings); |
87 | } | |
88 | } | |
89 | ||
90 | if (name == NULL) | |
91 | { | |
92 | /* Assorted wastage to null-terminate the name, thanks AT&T! */ | |
dc810e39 | 93 | name = bfd_alloc (abfd, (bfd_size_type) sizeof (hdr->s_name) + 1); |
252b5132 | 94 | if (name == NULL) |
b34976b6 | 95 | return FALSE; |
252b5132 RH |
96 | strncpy (name, (char *) &hdr->s_name[0], sizeof (hdr->s_name)); |
97 | name[sizeof (hdr->s_name)] = 0; | |
98 | } | |
99 | ||
100 | return_section = bfd_make_section_anyway (abfd, name); | |
101 | if (return_section == NULL) | |
b34976b6 | 102 | return FALSE; |
252b5132 RH |
103 | |
104 | return_section->vma = hdr->s_vaddr; | |
105 | return_section->lma = hdr->s_paddr; | |
eea6121a | 106 | return_section->size = hdr->s_size; |
252b5132 RH |
107 | return_section->filepos = hdr->s_scnptr; |
108 | return_section->rel_filepos = hdr->s_relptr; | |
109 | return_section->reloc_count = hdr->s_nreloc; | |
110 | ||
111 | bfd_coff_set_alignment_hook (abfd, return_section, hdr); | |
112 | ||
113 | return_section->line_filepos = hdr->s_lnnoptr; | |
114 | ||
115 | return_section->lineno_count = hdr->s_nlnno; | |
116 | return_section->userdata = NULL; | |
c8e7bf0d | 117 | return_section->next = NULL; |
252b5132 | 118 | return_section->target_index = target_index; |
7c8ca0e4 NC |
119 | |
120 | if (! bfd_coff_styp_to_sec_flags_hook (abfd, hdr, name, return_section, | |
121 | & flags)) | |
b34976b6 | 122 | result = FALSE; |
dc810e39 | 123 | |
7c8ca0e4 | 124 | return_section->flags = flags; |
252b5132 RH |
125 | |
126 | /* At least on i386-coff, the line number count for a shared library | |
127 | section must be ignored. */ | |
128 | if ((return_section->flags & SEC_COFF_SHARED_LIBRARY) != 0) | |
129 | return_section->lineno_count = 0; | |
130 | ||
131 | if (hdr->s_nreloc != 0) | |
132 | return_section->flags |= SEC_RELOC; | |
c8e7bf0d | 133 | /* FIXME: should this check 'hdr->s_size > 0'. */ |
252b5132 RH |
134 | if (hdr->s_scnptr != 0) |
135 | return_section->flags |= SEC_HAS_CONTENTS; | |
7c8ca0e4 NC |
136 | |
137 | return result; | |
252b5132 RH |
138 | } |
139 | ||
140 | /* Read in a COFF object and make it into a BFD. This is used by | |
141 | ECOFF as well. */ | |
142 | ||
143 | static const bfd_target * | |
c8e7bf0d NC |
144 | coff_real_object_p (bfd *abfd, |
145 | unsigned nscns, | |
146 | struct internal_filehdr *internal_f, | |
147 | struct internal_aouthdr *internal_a) | |
252b5132 RH |
148 | { |
149 | flagword oflags = abfd->flags; | |
150 | bfd_vma ostart = bfd_get_start_address (abfd); | |
c8e7bf0d NC |
151 | void * tdata; |
152 | void * tdata_save; | |
153 | bfd_size_type readsize; /* Length of file_info. */ | |
252b5132 RH |
154 | unsigned int scnhsz; |
155 | char *external_sections; | |
156 | ||
157 | if (!(internal_f->f_flags & F_RELFLG)) | |
158 | abfd->flags |= HAS_RELOC; | |
159 | if ((internal_f->f_flags & F_EXEC)) | |
160 | abfd->flags |= EXEC_P; | |
161 | if (!(internal_f->f_flags & F_LNNO)) | |
162 | abfd->flags |= HAS_LINENO; | |
163 | if (!(internal_f->f_flags & F_LSYMS)) | |
164 | abfd->flags |= HAS_LOCALS; | |
165 | ||
166 | /* FIXME: How can we set D_PAGED correctly? */ | |
167 | if ((internal_f->f_flags & F_EXEC) != 0) | |
168 | abfd->flags |= D_PAGED; | |
169 | ||
170 | bfd_get_symcount (abfd) = internal_f->f_nsyms; | |
171 | if (internal_f->f_nsyms) | |
172 | abfd->flags |= HAS_SYMS; | |
173 | ||
174 | if (internal_a != (struct internal_aouthdr *) NULL) | |
175 | bfd_get_start_address (abfd) = internal_a->entry; | |
176 | else | |
177 | bfd_get_start_address (abfd) = 0; | |
178 | ||
179 | /* Set up the tdata area. ECOFF uses its own routine, and overrides | |
180 | abfd->flags. */ | |
487e54f2 | 181 | tdata_save = abfd->tdata.any; |
c8e7bf0d | 182 | tdata = bfd_coff_mkobject_hook (abfd, (void *) internal_f, (void *) internal_a); |
252b5132 | 183 | if (tdata == NULL) |
487e54f2 | 184 | goto fail2; |
252b5132 RH |
185 | |
186 | scnhsz = bfd_coff_scnhsz (abfd); | |
dc810e39 | 187 | readsize = (bfd_size_type) nscns * scnhsz; |
c8e7bf0d | 188 | external_sections = bfd_alloc (abfd, readsize); |
252b5132 RH |
189 | if (!external_sections) |
190 | goto fail; | |
191 | ||
c8e7bf0d | 192 | if (bfd_bread ((void *) external_sections, readsize, abfd) != readsize) |
252b5132 RH |
193 | goto fail; |
194 | ||
363d7b14 | 195 | /* Set the arch/mach *before* swapping in sections; section header swapping |
244148ad | 196 | may depend on arch/mach info. */ |
c8e7bf0d | 197 | if (! bfd_coff_set_arch_mach_hook (abfd, (void *) internal_f)) |
363d7b14 TW |
198 | goto fail; |
199 | ||
e16bb312 | 200 | /* Now copy data as required; construct all asections etc. */ |
252b5132 RH |
201 | if (nscns != 0) |
202 | { | |
203 | unsigned int i; | |
204 | for (i = 0; i < nscns; i++) | |
205 | { | |
206 | struct internal_scnhdr tmp; | |
207 | bfd_coff_swap_scnhdr_in (abfd, | |
c8e7bf0d NC |
208 | (void *) (external_sections + i * scnhsz), |
209 | (void *) & tmp); | |
252b5132 RH |
210 | if (! make_a_section_from_file (abfd, &tmp, i + 1)) |
211 | goto fail; | |
212 | } | |
213 | } | |
214 | ||
252b5132 RH |
215 | return abfd->xvec; |
216 | ||
217 | fail: | |
218 | bfd_release (abfd, tdata); | |
487e54f2 AM |
219 | fail2: |
220 | abfd->tdata.any = tdata_save; | |
252b5132 RH |
221 | abfd->flags = oflags; |
222 | bfd_get_start_address (abfd) = ostart; | |
223 | return (const bfd_target *) NULL; | |
224 | } | |
225 | ||
226 | /* Turn a COFF file into a BFD, but fail with bfd_error_wrong_format if it is | |
227 | not a COFF file. This is also used by ECOFF. */ | |
228 | ||
229 | const bfd_target * | |
c8e7bf0d | 230 | coff_object_p (bfd *abfd) |
252b5132 | 231 | { |
dc810e39 AM |
232 | bfd_size_type filhsz; |
233 | bfd_size_type aoutsz; | |
234 | unsigned int nscns; | |
c8e7bf0d | 235 | void * filehdr; |
252b5132 RH |
236 | struct internal_filehdr internal_f; |
237 | struct internal_aouthdr internal_a; | |
238 | ||
c8e7bf0d | 239 | /* Figure out how much to read. */ |
252b5132 RH |
240 | filhsz = bfd_coff_filhsz (abfd); |
241 | aoutsz = bfd_coff_aoutsz (abfd); | |
242 | ||
243 | filehdr = bfd_alloc (abfd, filhsz); | |
244 | if (filehdr == NULL) | |
487e54f2 | 245 | return NULL; |
dc810e39 | 246 | if (bfd_bread (filehdr, filhsz, abfd) != filhsz) |
252b5132 RH |
247 | { |
248 | if (bfd_get_error () != bfd_error_system_call) | |
249 | bfd_set_error (bfd_error_wrong_format); | |
487e54f2 AM |
250 | bfd_release (abfd, filehdr); |
251 | return NULL; | |
252b5132 RH |
252 | } |
253 | bfd_coff_swap_filehdr_in (abfd, filehdr, &internal_f); | |
254 | bfd_release (abfd, filehdr); | |
255 | ||
b8819ab2 NC |
256 | /* The XCOFF format has two sizes for the f_opthdr. SMALL_AOUTSZ |
257 | (less than aoutsz) used in object files and AOUTSZ (equal to | |
258 | aoutsz) in executables. The bfd_coff_swap_aouthdr_in function | |
259 | expects this header to be aoutsz bytes in length, so we use that | |
260 | value in the call to bfd_alloc below. But we must be careful to | |
261 | only read in f_opthdr bytes in the call to bfd_bread. We should | |
262 | also attempt to catch corrupt or non-COFF binaries with a strange | |
263 | value for f_opthdr. */ | |
82e51918 | 264 | if (! bfd_coff_bad_format_hook (abfd, &internal_f) |
95f7d9f7 | 265 | || internal_f.f_opthdr > aoutsz) |
252b5132 RH |
266 | { |
267 | bfd_set_error (bfd_error_wrong_format); | |
487e54f2 | 268 | return NULL; |
252b5132 RH |
269 | } |
270 | nscns = internal_f.f_nscns; | |
271 | ||
272 | if (internal_f.f_opthdr) | |
273 | { | |
c8e7bf0d | 274 | void * opthdr; |
252b5132 RH |
275 | |
276 | opthdr = bfd_alloc (abfd, aoutsz); | |
277 | if (opthdr == NULL) | |
487e54f2 | 278 | return NULL; |
dc810e39 | 279 | if (bfd_bread (opthdr, (bfd_size_type) internal_f.f_opthdr, abfd) |
252b5132 RH |
280 | != internal_f.f_opthdr) |
281 | { | |
487e54f2 AM |
282 | bfd_release (abfd, opthdr); |
283 | return NULL; | |
252b5132 | 284 | } |
c8e7bf0d | 285 | bfd_coff_swap_aouthdr_in (abfd, opthdr, (void *) &internal_a); |
487e54f2 | 286 | bfd_release (abfd, opthdr); |
252b5132 RH |
287 | } |
288 | ||
289 | return coff_real_object_p (abfd, nscns, &internal_f, | |
290 | (internal_f.f_opthdr != 0 | |
291 | ? &internal_a | |
292 | : (struct internal_aouthdr *) NULL)); | |
293 | } | |
294 | ||
295 | /* Get the BFD section from a COFF symbol section number. */ | |
296 | ||
297 | asection * | |
c8e7bf0d | 298 | coff_section_from_bfd_index (bfd *abfd, int index) |
252b5132 | 299 | { |
198beae2 | 300 | struct bfd_section *answer = abfd->sections; |
252b5132 RH |
301 | |
302 | if (index == N_ABS) | |
303 | return bfd_abs_section_ptr; | |
304 | if (index == N_UNDEF) | |
305 | return bfd_und_section_ptr; | |
306 | if (index == N_DEBUG) | |
307 | return bfd_abs_section_ptr; | |
308 | ||
309 | while (answer) | |
310 | { | |
311 | if (answer->target_index == index) | |
312 | return answer; | |
313 | answer = answer->next; | |
314 | } | |
315 | ||
316 | /* We should not reach this point, but the SCO 3.2v4 /lib/libc_s.a | |
317 | has a bad symbol table in biglitpow.o. */ | |
318 | return bfd_und_section_ptr; | |
319 | } | |
320 | ||
321 | /* Get the upper bound of a COFF symbol table. */ | |
322 | ||
323 | long | |
c8e7bf0d | 324 | coff_get_symtab_upper_bound (bfd *abfd) |
252b5132 RH |
325 | { |
326 | if (!bfd_coff_slurp_symbol_table (abfd)) | |
327 | return -1; | |
328 | ||
329 | return (bfd_get_symcount (abfd) + 1) * (sizeof (coff_symbol_type *)); | |
330 | } | |
331 | ||
252b5132 RH |
332 | /* Canonicalize a COFF symbol table. */ |
333 | ||
334 | long | |
c8e7bf0d | 335 | coff_canonicalize_symtab (bfd *abfd, asymbol **alocation) |
252b5132 RH |
336 | { |
337 | unsigned int counter; | |
338 | coff_symbol_type *symbase; | |
339 | coff_symbol_type **location = (coff_symbol_type **) alocation; | |
340 | ||
341 | if (!bfd_coff_slurp_symbol_table (abfd)) | |
342 | return -1; | |
343 | ||
344 | symbase = obj_symbols (abfd); | |
345 | counter = bfd_get_symcount (abfd); | |
346 | while (counter-- > 0) | |
347 | *location++ = symbase++; | |
348 | ||
349 | *location = NULL; | |
350 | ||
351 | return bfd_get_symcount (abfd); | |
352 | } | |
353 | ||
354 | /* Get the name of a symbol. The caller must pass in a buffer of size | |
355 | >= SYMNMLEN + 1. */ | |
356 | ||
357 | const char * | |
c8e7bf0d NC |
358 | _bfd_coff_internal_syment_name (bfd *abfd, |
359 | const struct internal_syment *sym, | |
360 | char *buf) | |
252b5132 RH |
361 | { |
362 | /* FIXME: It's not clear this will work correctly if sizeof | |
363 | (_n_zeroes) != 4. */ | |
364 | if (sym->_n._n_n._n_zeroes != 0 | |
365 | || sym->_n._n_n._n_offset == 0) | |
366 | { | |
367 | memcpy (buf, sym->_n._n_name, SYMNMLEN); | |
368 | buf[SYMNMLEN] = '\0'; | |
369 | return buf; | |
370 | } | |
371 | else | |
372 | { | |
373 | const char *strings; | |
374 | ||
375 | BFD_ASSERT (sym->_n._n_n._n_offset >= STRING_SIZE_SIZE); | |
376 | strings = obj_coff_strings (abfd); | |
377 | if (strings == NULL) | |
378 | { | |
379 | strings = _bfd_coff_read_string_table (abfd); | |
380 | if (strings == NULL) | |
381 | return NULL; | |
382 | } | |
383 | return strings + sym->_n._n_n._n_offset; | |
384 | } | |
385 | } | |
386 | ||
387 | /* Read in and swap the relocs. This returns a buffer holding the | |
b34976b6 | 388 | relocs for section SEC in file ABFD. If CACHE is TRUE and |
252b5132 RH |
389 | INTERNAL_RELOCS is NULL, the relocs read in will be saved in case |
390 | the function is called again. If EXTERNAL_RELOCS is not NULL, it | |
391 | is a buffer large enough to hold the unswapped relocs. If | |
392 | INTERNAL_RELOCS is not NULL, it is a buffer large enough to hold | |
b34976b6 | 393 | the swapped relocs. If REQUIRE_INTERNAL is TRUE, then the return |
252b5132 RH |
394 | value must be INTERNAL_RELOCS. The function returns NULL on error. */ |
395 | ||
396 | struct internal_reloc * | |
c8e7bf0d NC |
397 | _bfd_coff_read_internal_relocs (bfd *abfd, |
398 | asection *sec, | |
399 | bfd_boolean cache, | |
400 | bfd_byte *external_relocs, | |
401 | bfd_boolean require_internal, | |
402 | struct internal_reloc *internal_relocs) | |
252b5132 RH |
403 | { |
404 | bfd_size_type relsz; | |
405 | bfd_byte *free_external = NULL; | |
406 | struct internal_reloc *free_internal = NULL; | |
407 | bfd_byte *erel; | |
408 | bfd_byte *erel_end; | |
409 | struct internal_reloc *irel; | |
dc810e39 | 410 | bfd_size_type amt; |
252b5132 RH |
411 | |
412 | if (coff_section_data (abfd, sec) != NULL | |
413 | && coff_section_data (abfd, sec)->relocs != NULL) | |
414 | { | |
415 | if (! require_internal) | |
416 | return coff_section_data (abfd, sec)->relocs; | |
417 | memcpy (internal_relocs, coff_section_data (abfd, sec)->relocs, | |
418 | sec->reloc_count * sizeof (struct internal_reloc)); | |
419 | return internal_relocs; | |
420 | } | |
421 | ||
422 | relsz = bfd_coff_relsz (abfd); | |
423 | ||
dc810e39 | 424 | amt = sec->reloc_count * relsz; |
252b5132 RH |
425 | if (external_relocs == NULL) |
426 | { | |
c8e7bf0d | 427 | free_external = bfd_malloc (amt); |
252b5132 RH |
428 | if (free_external == NULL && sec->reloc_count > 0) |
429 | goto error_return; | |
430 | external_relocs = free_external; | |
431 | } | |
432 | ||
433 | if (bfd_seek (abfd, sec->rel_filepos, SEEK_SET) != 0 | |
dc810e39 | 434 | || bfd_bread (external_relocs, amt, abfd) != amt) |
252b5132 RH |
435 | goto error_return; |
436 | ||
437 | if (internal_relocs == NULL) | |
438 | { | |
dc810e39 AM |
439 | amt = sec->reloc_count; |
440 | amt *= sizeof (struct internal_reloc); | |
c8e7bf0d | 441 | free_internal = bfd_malloc (amt); |
252b5132 RH |
442 | if (free_internal == NULL && sec->reloc_count > 0) |
443 | goto error_return; | |
444 | internal_relocs = free_internal; | |
445 | } | |
446 | ||
447 | /* Swap in the relocs. */ | |
448 | erel = external_relocs; | |
449 | erel_end = erel + relsz * sec->reloc_count; | |
450 | irel = internal_relocs; | |
451 | for (; erel < erel_end; erel += relsz, irel++) | |
c8e7bf0d | 452 | bfd_coff_swap_reloc_in (abfd, (void *) erel, (void *) irel); |
252b5132 RH |
453 | |
454 | if (free_external != NULL) | |
455 | { | |
456 | free (free_external); | |
457 | free_external = NULL; | |
458 | } | |
459 | ||
460 | if (cache && free_internal != NULL) | |
461 | { | |
462 | if (coff_section_data (abfd, sec) == NULL) | |
463 | { | |
dc810e39 | 464 | amt = sizeof (struct coff_section_tdata); |
c8e7bf0d | 465 | sec->used_by_bfd = bfd_zalloc (abfd, amt); |
252b5132 RH |
466 | if (sec->used_by_bfd == NULL) |
467 | goto error_return; | |
468 | coff_section_data (abfd, sec)->contents = NULL; | |
469 | } | |
470 | coff_section_data (abfd, sec)->relocs = free_internal; | |
471 | } | |
472 | ||
473 | return internal_relocs; | |
474 | ||
475 | error_return: | |
476 | if (free_external != NULL) | |
477 | free (free_external); | |
478 | if (free_internal != NULL) | |
479 | free (free_internal); | |
480 | return NULL; | |
481 | } | |
482 | ||
483 | /* Set lineno_count for the output sections of a COFF file. */ | |
484 | ||
485 | int | |
c8e7bf0d | 486 | coff_count_linenumbers (bfd *abfd) |
252b5132 RH |
487 | { |
488 | unsigned int limit = bfd_get_symcount (abfd); | |
489 | unsigned int i; | |
490 | int total = 0; | |
491 | asymbol **p; | |
492 | asection *s; | |
493 | ||
494 | if (limit == 0) | |
495 | { | |
496 | /* This may be from the backend linker, in which case the | |
497 | lineno_count in the sections is correct. */ | |
498 | for (s = abfd->sections; s != NULL; s = s->next) | |
499 | total += s->lineno_count; | |
500 | return total; | |
501 | } | |
502 | ||
503 | for (s = abfd->sections; s != NULL; s = s->next) | |
504 | BFD_ASSERT (s->lineno_count == 0); | |
505 | ||
506 | for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) | |
507 | { | |
508 | asymbol *q_maybe = *p; | |
509 | ||
9bd09e22 | 510 | if (bfd_family_coff (bfd_asymbol_bfd (q_maybe))) |
252b5132 RH |
511 | { |
512 | coff_symbol_type *q = coffsymbol (q_maybe); | |
513 | ||
514 | /* The AIX 4.1 compiler can sometimes generate line numbers | |
515 | attached to debugging symbols. We try to simply ignore | |
516 | those here. */ | |
517 | if (q->lineno != NULL | |
518 | && q->symbol.section->owner != NULL) | |
519 | { | |
520 | /* This symbol has line numbers. Increment the owning | |
521 | section's linenumber count. */ | |
522 | alent *l = q->lineno; | |
523 | ||
84c254c6 | 524 | do |
252b5132 | 525 | { |
84c254c6 | 526 | asection * sec = q->symbol.section->output_section; |
b34976b6 | 527 | |
84c254c6 NC |
528 | /* Do not try to update fields in read-only sections. */ |
529 | if (! bfd_is_const_section (sec)) | |
530 | sec->lineno_count ++; | |
531 | ||
252b5132 | 532 | ++total; |
252b5132 RH |
533 | ++l; |
534 | } | |
84c254c6 | 535 | while (l->line_number != 0); |
252b5132 RH |
536 | } |
537 | } | |
538 | } | |
539 | ||
540 | return total; | |
541 | } | |
542 | ||
543 | /* Takes a bfd and a symbol, returns a pointer to the coff specific | |
544 | area of the symbol if there is one. */ | |
545 | ||
252b5132 | 546 | coff_symbol_type * |
c8e7bf0d NC |
547 | coff_symbol_from (bfd *ignore_abfd ATTRIBUTE_UNUSED, |
548 | asymbol *symbol) | |
252b5132 | 549 | { |
9bd09e22 | 550 | if (!bfd_family_coff (bfd_asymbol_bfd (symbol))) |
252b5132 RH |
551 | return (coff_symbol_type *) NULL; |
552 | ||
553 | if (bfd_asymbol_bfd (symbol)->tdata.coff_obj_data == (coff_data_type *) NULL) | |
554 | return (coff_symbol_type *) NULL; | |
555 | ||
556 | return (coff_symbol_type *) symbol; | |
557 | } | |
558 | ||
559 | static void | |
c8e7bf0d NC |
560 | fixup_symbol_value (bfd *abfd, |
561 | coff_symbol_type *coff_symbol_ptr, | |
562 | struct internal_syment *syment) | |
252b5132 | 563 | { |
c8e7bf0d | 564 | /* Normalize the symbol flags. */ |
252b5132 RH |
565 | if (bfd_is_com_section (coff_symbol_ptr->symbol.section)) |
566 | { | |
c8e7bf0d | 567 | /* A common symbol is undefined with a value. */ |
252b5132 RH |
568 | syment->n_scnum = N_UNDEF; |
569 | syment->n_value = coff_symbol_ptr->symbol.value; | |
570 | } | |
703153b5 ILT |
571 | else if ((coff_symbol_ptr->symbol.flags & BSF_DEBUGGING) != 0 |
572 | && (coff_symbol_ptr->symbol.flags & BSF_DEBUGGING_RELOC) == 0) | |
252b5132 RH |
573 | { |
574 | syment->n_value = coff_symbol_ptr->symbol.value; | |
575 | } | |
576 | else if (bfd_is_und_section (coff_symbol_ptr->symbol.section)) | |
577 | { | |
578 | syment->n_scnum = N_UNDEF; | |
579 | syment->n_value = 0; | |
580 | } | |
7bb9db4d | 581 | /* FIXME: Do we need to handle the absolute section here? */ |
252b5132 RH |
582 | else |
583 | { | |
584 | if (coff_symbol_ptr->symbol.section) | |
585 | { | |
586 | syment->n_scnum = | |
587 | coff_symbol_ptr->symbol.section->output_section->target_index; | |
588 | ||
589 | syment->n_value = (coff_symbol_ptr->symbol.value | |
590 | + coff_symbol_ptr->symbol.section->output_offset); | |
591 | if (! obj_pe (abfd)) | |
34cbe64e TW |
592 | { |
593 | syment->n_value += (syment->n_sclass == C_STATLAB) | |
594 | ? coff_symbol_ptr->symbol.section->output_section->lma | |
595 | : coff_symbol_ptr->symbol.section->output_section->vma; | |
596 | } | |
252b5132 RH |
597 | } |
598 | else | |
599 | { | |
600 | BFD_ASSERT (0); | |
601 | /* This can happen, but I don't know why yet (steve@cygnus.com) */ | |
602 | syment->n_scnum = N_ABS; | |
603 | syment->n_value = coff_symbol_ptr->symbol.value; | |
604 | } | |
605 | } | |
606 | } | |
607 | ||
608 | /* Run through all the symbols in the symbol table and work out what | |
609 | their indexes into the symbol table will be when output. | |
610 | ||
611 | Coff requires that each C_FILE symbol points to the next one in the | |
612 | chain, and that the last one points to the first external symbol. We | |
613 | do that here too. */ | |
614 | ||
b34976b6 | 615 | bfd_boolean |
c8e7bf0d | 616 | coff_renumber_symbols (bfd *bfd_ptr, int *first_undef) |
252b5132 RH |
617 | { |
618 | unsigned int symbol_count = bfd_get_symcount (bfd_ptr); | |
619 | asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols; | |
620 | unsigned int native_index = 0; | |
c8e7bf0d | 621 | struct internal_syment *last_file = NULL; |
252b5132 RH |
622 | unsigned int symbol_index; |
623 | ||
624 | /* COFF demands that undefined symbols come after all other symbols. | |
625 | Since we don't need to impose this extra knowledge on all our | |
626 | client programs, deal with that here. Sort the symbol table; | |
627 | just move the undefined symbols to the end, leaving the rest | |
628 | alone. The O'Reilly book says that defined global symbols come | |
629 | at the end before the undefined symbols, so we do that here as | |
630 | well. */ | |
631 | /* @@ Do we have some condition we could test for, so we don't always | |
632 | have to do this? I don't think relocatability is quite right, but | |
633 | I'm not certain. [raeburn:19920508.1711EST] */ | |
634 | { | |
635 | asymbol **newsyms; | |
636 | unsigned int i; | |
dc810e39 | 637 | bfd_size_type amt; |
252b5132 | 638 | |
dc810e39 | 639 | amt = sizeof (asymbol *) * ((bfd_size_type) symbol_count + 1); |
c8e7bf0d | 640 | newsyms = bfd_alloc (bfd_ptr, amt); |
252b5132 | 641 | if (!newsyms) |
b34976b6 | 642 | return FALSE; |
252b5132 RH |
643 | bfd_ptr->outsymbols = newsyms; |
644 | for (i = 0; i < symbol_count; i++) | |
645 | if ((symbol_ptr_ptr[i]->flags & BSF_NOT_AT_END) != 0 | |
646 | || (!bfd_is_und_section (symbol_ptr_ptr[i]->section) | |
647 | && !bfd_is_com_section (symbol_ptr_ptr[i]->section) | |
648 | && ((symbol_ptr_ptr[i]->flags & BSF_FUNCTION) != 0 | |
649 | || ((symbol_ptr_ptr[i]->flags & (BSF_GLOBAL | BSF_WEAK)) | |
650 | == 0)))) | |
651 | *newsyms++ = symbol_ptr_ptr[i]; | |
652 | ||
653 | for (i = 0; i < symbol_count; i++) | |
654 | if ((symbol_ptr_ptr[i]->flags & BSF_NOT_AT_END) == 0 | |
655 | && !bfd_is_und_section (symbol_ptr_ptr[i]->section) | |
656 | && (bfd_is_com_section (symbol_ptr_ptr[i]->section) | |
657 | || ((symbol_ptr_ptr[i]->flags & BSF_FUNCTION) == 0 | |
658 | && ((symbol_ptr_ptr[i]->flags & (BSF_GLOBAL | BSF_WEAK)) | |
659 | != 0)))) | |
660 | *newsyms++ = symbol_ptr_ptr[i]; | |
661 | ||
662 | *first_undef = newsyms - bfd_ptr->outsymbols; | |
663 | ||
664 | for (i = 0; i < symbol_count; i++) | |
665 | if ((symbol_ptr_ptr[i]->flags & BSF_NOT_AT_END) == 0 | |
666 | && bfd_is_und_section (symbol_ptr_ptr[i]->section)) | |
667 | *newsyms++ = symbol_ptr_ptr[i]; | |
668 | *newsyms = (asymbol *) NULL; | |
669 | symbol_ptr_ptr = bfd_ptr->outsymbols; | |
670 | } | |
671 | ||
672 | for (symbol_index = 0; symbol_index < symbol_count; symbol_index++) | |
673 | { | |
674 | coff_symbol_type *coff_symbol_ptr = coff_symbol_from (bfd_ptr, symbol_ptr_ptr[symbol_index]); | |
244148ad | 675 | symbol_ptr_ptr[symbol_index]->udata.i = symbol_index; |
252b5132 RH |
676 | if (coff_symbol_ptr && coff_symbol_ptr->native) |
677 | { | |
678 | combined_entry_type *s = coff_symbol_ptr->native; | |
679 | int i; | |
680 | ||
681 | if (s->u.syment.n_sclass == C_FILE) | |
682 | { | |
c8e7bf0d | 683 | if (last_file != NULL) |
252b5132 RH |
684 | last_file->n_value = native_index; |
685 | last_file = &(s->u.syment); | |
686 | } | |
687 | else | |
c8e7bf0d NC |
688 | /* Modify the symbol values according to their section and |
689 | type. */ | |
690 | fixup_symbol_value (bfd_ptr, coff_symbol_ptr, &(s->u.syment)); | |
252b5132 | 691 | |
252b5132 RH |
692 | for (i = 0; i < s->u.syment.n_numaux + 1; i++) |
693 | s[i].offset = native_index++; | |
694 | } | |
695 | else | |
c8e7bf0d | 696 | native_index++; |
252b5132 | 697 | } |
c8e7bf0d | 698 | |
252b5132 RH |
699 | obj_conv_table_size (bfd_ptr) = native_index; |
700 | ||
b34976b6 | 701 | return TRUE; |
252b5132 RH |
702 | } |
703 | ||
704 | /* Run thorough the symbol table again, and fix it so that all | |
705 | pointers to entries are changed to the entries' index in the output | |
706 | symbol table. */ | |
707 | ||
708 | void | |
c8e7bf0d | 709 | coff_mangle_symbols (bfd *bfd_ptr) |
252b5132 RH |
710 | { |
711 | unsigned int symbol_count = bfd_get_symcount (bfd_ptr); | |
712 | asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols; | |
713 | unsigned int symbol_index; | |
714 | ||
715 | for (symbol_index = 0; symbol_index < symbol_count; symbol_index++) | |
716 | { | |
717 | coff_symbol_type *coff_symbol_ptr = | |
718 | coff_symbol_from (bfd_ptr, symbol_ptr_ptr[symbol_index]); | |
719 | ||
720 | if (coff_symbol_ptr && coff_symbol_ptr->native) | |
721 | { | |
722 | int i; | |
723 | combined_entry_type *s = coff_symbol_ptr->native; | |
724 | ||
725 | if (s->fix_value) | |
726 | { | |
727 | /* FIXME: We should use a union here. */ | |
dc810e39 | 728 | s->u.syment.n_value = |
d2df793a NC |
729 | (bfd_hostptr_t) ((combined_entry_type *) |
730 | ((bfd_hostptr_t) s->u.syment.n_value))->offset; | |
252b5132 RH |
731 | s->fix_value = 0; |
732 | } | |
733 | if (s->fix_line) | |
734 | { | |
735 | /* The value is the offset into the line number entries | |
736 | for the symbol's section. On output, the symbol's | |
737 | section should be N_DEBUG. */ | |
738 | s->u.syment.n_value = | |
739 | (coff_symbol_ptr->symbol.section->output_section->line_filepos | |
740 | + s->u.syment.n_value * bfd_coff_linesz (bfd_ptr)); | |
741 | coff_symbol_ptr->symbol.section = | |
742 | coff_section_from_bfd_index (bfd_ptr, N_DEBUG); | |
743 | BFD_ASSERT (coff_symbol_ptr->symbol.flags & BSF_DEBUGGING); | |
744 | } | |
745 | for (i = 0; i < s->u.syment.n_numaux; i++) | |
746 | { | |
747 | combined_entry_type *a = s + i + 1; | |
748 | if (a->fix_tag) | |
749 | { | |
750 | a->u.auxent.x_sym.x_tagndx.l = | |
751 | a->u.auxent.x_sym.x_tagndx.p->offset; | |
752 | a->fix_tag = 0; | |
753 | } | |
754 | if (a->fix_end) | |
755 | { | |
756 | a->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l = | |
757 | a->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p->offset; | |
758 | a->fix_end = 0; | |
759 | } | |
760 | if (a->fix_scnlen) | |
761 | { | |
762 | a->u.auxent.x_csect.x_scnlen.l = | |
763 | a->u.auxent.x_csect.x_scnlen.p->offset; | |
764 | a->fix_scnlen = 0; | |
765 | } | |
766 | } | |
767 | } | |
768 | } | |
769 | } | |
770 | ||
771 | static void | |
c8e7bf0d NC |
772 | coff_fix_symbol_name (bfd *abfd, |
773 | asymbol *symbol, | |
774 | combined_entry_type *native, | |
775 | bfd_size_type *string_size_p, | |
776 | asection **debug_string_section_p, | |
777 | bfd_size_type *debug_string_size_p) | |
252b5132 RH |
778 | { |
779 | unsigned int name_length; | |
780 | union internal_auxent *auxent; | |
781 | char *name = (char *) (symbol->name); | |
782 | ||
c8e7bf0d | 783 | if (name == NULL) |
252b5132 | 784 | { |
c8e7bf0d | 785 | /* COFF symbols always have names, so we'll make one up. */ |
252b5132 RH |
786 | symbol->name = "strange"; |
787 | name = (char *) symbol->name; | |
788 | } | |
789 | name_length = strlen (name); | |
790 | ||
791 | if (native->u.syment.n_sclass == C_FILE | |
792 | && native->u.syment.n_numaux > 0) | |
793 | { | |
692b7d62 ILT |
794 | unsigned int filnmlen; |
795 | ||
7f6d05e8 CP |
796 | if (bfd_coff_force_symnames_in_strings (abfd)) |
797 | { | |
244148ad | 798 | native->u.syment._n._n_n._n_offset = |
7f6d05e8 CP |
799 | (*string_size_p + STRING_SIZE_SIZE); |
800 | native->u.syment._n._n_n._n_zeroes = 0; | |
801 | *string_size_p += 6; /* strlen(".file") + 1 */ | |
802 | } | |
803 | else | |
804 | strncpy (native->u.syment._n._n_name, ".file", SYMNMLEN); | |
805 | ||
252b5132 RH |
806 | auxent = &(native + 1)->u.auxent; |
807 | ||
692b7d62 ILT |
808 | filnmlen = bfd_coff_filnmlen (abfd); |
809 | ||
252b5132 RH |
810 | if (bfd_coff_long_filenames (abfd)) |
811 | { | |
692b7d62 | 812 | if (name_length <= filnmlen) |
c8e7bf0d | 813 | strncpy (auxent->x_file.x_fname, name, filnmlen); |
252b5132 RH |
814 | else |
815 | { | |
816 | auxent->x_file.x_n.x_offset = *string_size_p + STRING_SIZE_SIZE; | |
817 | auxent->x_file.x_n.x_zeroes = 0; | |
818 | *string_size_p += name_length + 1; | |
819 | } | |
820 | } | |
821 | else | |
822 | { | |
692b7d62 ILT |
823 | strncpy (auxent->x_file.x_fname, name, filnmlen); |
824 | if (name_length > filnmlen) | |
825 | name[filnmlen] = '\0'; | |
252b5132 RH |
826 | } |
827 | } | |
828 | else | |
829 | { | |
7f6d05e8 | 830 | if (name_length <= SYMNMLEN && !bfd_coff_force_symnames_in_strings (abfd)) |
c8e7bf0d NC |
831 | /* This name will fit into the symbol neatly. */ |
832 | strncpy (native->u.syment._n._n_name, symbol->name, SYMNMLEN); | |
833 | ||
252b5132 RH |
834 | else if (!bfd_coff_symname_in_debug (abfd, &native->u.syment)) |
835 | { | |
836 | native->u.syment._n._n_n._n_offset = (*string_size_p | |
837 | + STRING_SIZE_SIZE); | |
838 | native->u.syment._n._n_n._n_zeroes = 0; | |
839 | *string_size_p += name_length + 1; | |
840 | } | |
841 | else | |
842 | { | |
dc810e39 | 843 | file_ptr filepos; |
7f6d05e8 CP |
844 | bfd_byte buf[4]; |
845 | int prefix_len = bfd_coff_debug_string_prefix_length (abfd); | |
252b5132 RH |
846 | |
847 | /* This name should be written into the .debug section. For | |
848 | some reason each name is preceded by a two byte length | |
849 | and also followed by a null byte. FIXME: We assume that | |
850 | the .debug section has already been created, and that it | |
851 | is large enough. */ | |
852 | if (*debug_string_section_p == (asection *) NULL) | |
853 | *debug_string_section_p = bfd_get_section_by_name (abfd, ".debug"); | |
854 | filepos = bfd_tell (abfd); | |
7f6d05e8 | 855 | if (prefix_len == 4) |
dc810e39 | 856 | bfd_put_32 (abfd, (bfd_vma) (name_length + 1), buf); |
7f6d05e8 | 857 | else |
dc810e39 | 858 | bfd_put_16 (abfd, (bfd_vma) (name_length + 1), buf); |
7f6d05e8 | 859 | |
252b5132 RH |
860 | if (!bfd_set_section_contents (abfd, |
861 | *debug_string_section_p, | |
c8e7bf0d | 862 | (void *) buf, |
252b5132 | 863 | (file_ptr) *debug_string_size_p, |
7f6d05e8 | 864 | (bfd_size_type) prefix_len) |
252b5132 RH |
865 | || !bfd_set_section_contents (abfd, |
866 | *debug_string_section_p, | |
c8e7bf0d | 867 | (void *) symbol->name, |
dc810e39 AM |
868 | (file_ptr) (*debug_string_size_p |
869 | + prefix_len), | |
252b5132 RH |
870 | (bfd_size_type) name_length + 1)) |
871 | abort (); | |
872 | if (bfd_seek (abfd, filepos, SEEK_SET) != 0) | |
873 | abort (); | |
244148ad | 874 | native->u.syment._n._n_n._n_offset = |
7f6d05e8 | 875 | *debug_string_size_p + prefix_len; |
252b5132 | 876 | native->u.syment._n._n_n._n_zeroes = 0; |
7f6d05e8 | 877 | *debug_string_size_p += name_length + 1 + prefix_len; |
252b5132 RH |
878 | } |
879 | } | |
880 | } | |
881 | ||
882 | /* We need to keep track of the symbol index so that when we write out | |
883 | the relocs we can get the index for a symbol. This method is a | |
884 | hack. FIXME. */ | |
885 | ||
886 | #define set_index(symbol, idx) ((symbol)->udata.i = (idx)) | |
887 | ||
888 | /* Write a symbol out to a COFF file. */ | |
889 | ||
b34976b6 | 890 | static bfd_boolean |
c8e7bf0d NC |
891 | coff_write_symbol (bfd *abfd, |
892 | asymbol *symbol, | |
893 | combined_entry_type *native, | |
894 | bfd_vma *written, | |
895 | bfd_size_type *string_size_p, | |
896 | asection **debug_string_section_p, | |
897 | bfd_size_type *debug_string_size_p) | |
252b5132 RH |
898 | { |
899 | unsigned int numaux = native->u.syment.n_numaux; | |
900 | int type = native->u.syment.n_type; | |
901 | int class = native->u.syment.n_sclass; | |
c8e7bf0d | 902 | void * buf; |
252b5132 RH |
903 | bfd_size_type symesz; |
904 | ||
905 | if (native->u.syment.n_sclass == C_FILE) | |
906 | symbol->flags |= BSF_DEBUGGING; | |
907 | ||
908 | if (symbol->flags & BSF_DEBUGGING | |
909 | && bfd_is_abs_section (symbol->section)) | |
c8e7bf0d NC |
910 | native->u.syment.n_scnum = N_DEBUG; |
911 | ||
252b5132 | 912 | else if (bfd_is_abs_section (symbol->section)) |
c8e7bf0d NC |
913 | native->u.syment.n_scnum = N_ABS; |
914 | ||
252b5132 | 915 | else if (bfd_is_und_section (symbol->section)) |
c8e7bf0d NC |
916 | native->u.syment.n_scnum = N_UNDEF; |
917 | ||
252b5132 | 918 | else |
c8e7bf0d NC |
919 | native->u.syment.n_scnum = |
920 | symbol->section->output_section->target_index; | |
252b5132 RH |
921 | |
922 | coff_fix_symbol_name (abfd, symbol, native, string_size_p, | |
923 | debug_string_section_p, debug_string_size_p); | |
924 | ||
925 | symesz = bfd_coff_symesz (abfd); | |
926 | buf = bfd_alloc (abfd, symesz); | |
927 | if (!buf) | |
b34976b6 | 928 | return FALSE; |
252b5132 | 929 | bfd_coff_swap_sym_out (abfd, &native->u.syment, buf); |
dc810e39 | 930 | if (bfd_bwrite (buf, symesz, abfd) != symesz) |
b34976b6 | 931 | return FALSE; |
252b5132 RH |
932 | bfd_release (abfd, buf); |
933 | ||
934 | if (native->u.syment.n_numaux > 0) | |
935 | { | |
936 | bfd_size_type auxesz; | |
937 | unsigned int j; | |
938 | ||
939 | auxesz = bfd_coff_auxesz (abfd); | |
940 | buf = bfd_alloc (abfd, auxesz); | |
941 | if (!buf) | |
b34976b6 | 942 | return FALSE; |
252b5132 RH |
943 | for (j = 0; j < native->u.syment.n_numaux; j++) |
944 | { | |
945 | bfd_coff_swap_aux_out (abfd, | |
946 | &((native + j + 1)->u.auxent), | |
c8e7bf0d | 947 | type, class, (int) j, |
252b5132 RH |
948 | native->u.syment.n_numaux, |
949 | buf); | |
dc810e39 | 950 | if (bfd_bwrite (buf, auxesz, abfd) != auxesz) |
b34976b6 | 951 | return FALSE; |
252b5132 RH |
952 | } |
953 | bfd_release (abfd, buf); | |
954 | } | |
955 | ||
956 | /* Store the index for use when we write out the relocs. */ | |
957 | set_index (symbol, *written); | |
958 | ||
959 | *written += numaux + 1; | |
b34976b6 | 960 | return TRUE; |
252b5132 RH |
961 | } |
962 | ||
963 | /* Write out a symbol to a COFF file that does not come from a COFF | |
964 | file originally. This symbol may have been created by the linker, | |
965 | or we may be linking a non COFF file to a COFF file. */ | |
966 | ||
b34976b6 | 967 | static bfd_boolean |
c8e7bf0d NC |
968 | coff_write_alien_symbol (bfd *abfd, |
969 | asymbol *symbol, | |
970 | bfd_vma *written, | |
971 | bfd_size_type *string_size_p, | |
972 | asection **debug_string_section_p, | |
973 | bfd_size_type *debug_string_size_p) | |
252b5132 RH |
974 | { |
975 | combined_entry_type *native; | |
976 | combined_entry_type dummy; | |
977 | ||
978 | native = &dummy; | |
979 | native->u.syment.n_type = T_NULL; | |
980 | native->u.syment.n_flags = 0; | |
981 | if (bfd_is_und_section (symbol->section)) | |
982 | { | |
983 | native->u.syment.n_scnum = N_UNDEF; | |
984 | native->u.syment.n_value = symbol->value; | |
985 | } | |
986 | else if (bfd_is_com_section (symbol->section)) | |
987 | { | |
988 | native->u.syment.n_scnum = N_UNDEF; | |
989 | native->u.syment.n_value = symbol->value; | |
990 | } | |
991 | else if (symbol->flags & BSF_DEBUGGING) | |
992 | { | |
993 | /* There isn't much point to writing out a debugging symbol | |
994 | unless we are prepared to convert it into COFF debugging | |
995 | format. So, we just ignore them. We must clobber the symbol | |
996 | name to keep it from being put in the string table. */ | |
997 | symbol->name = ""; | |
b34976b6 | 998 | return TRUE; |
252b5132 RH |
999 | } |
1000 | else | |
1001 | { | |
1002 | native->u.syment.n_scnum = | |
1003 | symbol->section->output_section->target_index; | |
1004 | native->u.syment.n_value = (symbol->value | |
1005 | + symbol->section->output_offset); | |
1006 | if (! obj_pe (abfd)) | |
1007 | native->u.syment.n_value += symbol->section->output_section->vma; | |
1008 | ||
08da05b0 | 1009 | /* Copy the any flags from the file header into the symbol. |
252b5132 RH |
1010 | FIXME: Why? */ |
1011 | { | |
1012 | coff_symbol_type *c = coff_symbol_from (abfd, symbol); | |
1013 | if (c != (coff_symbol_type *) NULL) | |
1014 | native->u.syment.n_flags = bfd_asymbol_bfd (&c->symbol)->flags; | |
1015 | } | |
1016 | } | |
1017 | ||
1018 | native->u.syment.n_type = 0; | |
1019 | if (symbol->flags & BSF_LOCAL) | |
1020 | native->u.syment.n_sclass = C_STAT; | |
1021 | else if (symbol->flags & BSF_WEAK) | |
1022 | native->u.syment.n_sclass = obj_pe (abfd) ? C_NT_WEAK : C_WEAKEXT; | |
1023 | else | |
1024 | native->u.syment.n_sclass = C_EXT; | |
1025 | native->u.syment.n_numaux = 0; | |
1026 | ||
1027 | return coff_write_symbol (abfd, symbol, native, written, string_size_p, | |
1028 | debug_string_section_p, debug_string_size_p); | |
1029 | } | |
1030 | ||
1031 | /* Write a native symbol to a COFF file. */ | |
1032 | ||
b34976b6 | 1033 | static bfd_boolean |
c8e7bf0d NC |
1034 | coff_write_native_symbol (bfd *abfd, |
1035 | coff_symbol_type *symbol, | |
1036 | bfd_vma *written, | |
1037 | bfd_size_type *string_size_p, | |
1038 | asection **debug_string_section_p, | |
1039 | bfd_size_type *debug_string_size_p) | |
252b5132 RH |
1040 | { |
1041 | combined_entry_type *native = symbol->native; | |
1042 | alent *lineno = symbol->lineno; | |
1043 | ||
1044 | /* If this symbol has an associated line number, we must store the | |
1045 | symbol index in the line number field. We also tag the auxent to | |
1046 | point to the right place in the lineno table. */ | |
1047 | if (lineno && !symbol->done_lineno && symbol->symbol.section->owner != NULL) | |
1048 | { | |
1049 | unsigned int count = 0; | |
c8e7bf0d | 1050 | |
252b5132 RH |
1051 | lineno[count].u.offset = *written; |
1052 | if (native->u.syment.n_numaux) | |
1053 | { | |
1054 | union internal_auxent *a = &((native + 1)->u.auxent); | |
1055 | ||
1056 | a->x_sym.x_fcnary.x_fcn.x_lnnoptr = | |
1057 | symbol->symbol.section->output_section->moving_line_filepos; | |
1058 | } | |
1059 | ||
1060 | /* Count and relocate all other linenumbers. */ | |
1061 | count++; | |
1062 | while (lineno[count].line_number != 0) | |
1063 | { | |
252b5132 RH |
1064 | lineno[count].u.offset += |
1065 | (symbol->symbol.section->output_section->vma | |
1066 | + symbol->symbol.section->output_offset); | |
252b5132 RH |
1067 | count++; |
1068 | } | |
b34976b6 | 1069 | symbol->done_lineno = TRUE; |
252b5132 | 1070 | |
84c254c6 NC |
1071 | if (! bfd_is_const_section (symbol->symbol.section->output_section)) |
1072 | symbol->symbol.section->output_section->moving_line_filepos += | |
1073 | count * bfd_coff_linesz (abfd); | |
252b5132 RH |
1074 | } |
1075 | ||
1076 | return coff_write_symbol (abfd, &(symbol->symbol), native, written, | |
1077 | string_size_p, debug_string_section_p, | |
1078 | debug_string_size_p); | |
1079 | } | |
1080 | ||
1081 | /* Write out the COFF symbols. */ | |
1082 | ||
b34976b6 | 1083 | bfd_boolean |
c8e7bf0d | 1084 | coff_write_symbols (bfd *abfd) |
252b5132 RH |
1085 | { |
1086 | bfd_size_type string_size; | |
1087 | asection *debug_string_section; | |
1088 | bfd_size_type debug_string_size; | |
1089 | unsigned int i; | |
1090 | unsigned int limit = bfd_get_symcount (abfd); | |
f075ee0c | 1091 | bfd_vma written = 0; |
252b5132 RH |
1092 | asymbol **p; |
1093 | ||
1094 | string_size = 0; | |
1095 | debug_string_section = NULL; | |
1096 | debug_string_size = 0; | |
1097 | ||
1098 | /* If this target supports long section names, they must be put into | |
1099 | the string table. This is supported by PE. This code must | |
1100 | handle section names just as they are handled in | |
1101 | coff_write_object_contents. */ | |
1102 | if (bfd_coff_long_section_names (abfd)) | |
1103 | { | |
1104 | asection *o; | |
1105 | ||
1106 | for (o = abfd->sections; o != NULL; o = o->next) | |
1107 | { | |
1108 | size_t len; | |
1109 | ||
1110 | len = strlen (o->name); | |
1111 | if (len > SCNNMLEN) | |
1112 | string_size += len + 1; | |
1113 | } | |
1114 | } | |
1115 | ||
c8e7bf0d | 1116 | /* Seek to the right place. */ |
252b5132 | 1117 | if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0) |
b34976b6 | 1118 | return FALSE; |
252b5132 | 1119 | |
c8e7bf0d | 1120 | /* Output all the symbols we have. */ |
252b5132 RH |
1121 | written = 0; |
1122 | for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) | |
1123 | { | |
1124 | asymbol *symbol = *p; | |
1125 | coff_symbol_type *c_symbol = coff_symbol_from (abfd, symbol); | |
1126 | ||
1127 | if (c_symbol == (coff_symbol_type *) NULL | |
1128 | || c_symbol->native == (combined_entry_type *) NULL) | |
1129 | { | |
1130 | if (!coff_write_alien_symbol (abfd, symbol, &written, &string_size, | |
1131 | &debug_string_section, | |
1132 | &debug_string_size)) | |
b34976b6 | 1133 | return FALSE; |
252b5132 RH |
1134 | } |
1135 | else | |
1136 | { | |
1137 | if (!coff_write_native_symbol (abfd, c_symbol, &written, | |
1138 | &string_size, &debug_string_section, | |
1139 | &debug_string_size)) | |
b34976b6 | 1140 | return FALSE; |
252b5132 RH |
1141 | } |
1142 | } | |
1143 | ||
1144 | obj_raw_syment_count (abfd) = written; | |
1145 | ||
c8e7bf0d | 1146 | /* Now write out strings. */ |
252b5132 RH |
1147 | if (string_size != 0) |
1148 | { | |
1149 | unsigned int size = string_size + STRING_SIZE_SIZE; | |
1150 | bfd_byte buffer[STRING_SIZE_SIZE]; | |
1151 | ||
1152 | #if STRING_SIZE_SIZE == 4 | |
dc810e39 | 1153 | H_PUT_32 (abfd, size, buffer); |
252b5132 | 1154 | #else |
dc810e39 | 1155 | #error Change H_PUT_32 |
252b5132 | 1156 | #endif |
c8e7bf0d | 1157 | if (bfd_bwrite ((void *) buffer, (bfd_size_type) sizeof (buffer), abfd) |
dc810e39 | 1158 | != sizeof (buffer)) |
b34976b6 | 1159 | return FALSE; |
252b5132 RH |
1160 | |
1161 | /* Handle long section names. This code must handle section | |
1162 | names just as they are handled in coff_write_object_contents. */ | |
1163 | if (bfd_coff_long_section_names (abfd)) | |
1164 | { | |
1165 | asection *o; | |
1166 | ||
1167 | for (o = abfd->sections; o != NULL; o = o->next) | |
1168 | { | |
1169 | size_t len; | |
1170 | ||
1171 | len = strlen (o->name); | |
1172 | if (len > SCNNMLEN) | |
1173 | { | |
dc810e39 AM |
1174 | if (bfd_bwrite (o->name, (bfd_size_type) (len + 1), abfd) |
1175 | != len + 1) | |
b34976b6 | 1176 | return FALSE; |
252b5132 RH |
1177 | } |
1178 | } | |
1179 | } | |
1180 | ||
1181 | for (p = abfd->outsymbols, i = 0; | |
1182 | i < limit; | |
1183 | i++, p++) | |
1184 | { | |
1185 | asymbol *q = *p; | |
1186 | size_t name_length = strlen (q->name); | |
1187 | coff_symbol_type *c_symbol = coff_symbol_from (abfd, q); | |
1188 | size_t maxlen; | |
1189 | ||
1190 | /* Figure out whether the symbol name should go in the string | |
1191 | table. Symbol names that are short enough are stored | |
1192 | directly in the syment structure. File names permit a | |
1193 | different, longer, length in the syment structure. On | |
1194 | XCOFF, some symbol names are stored in the .debug section | |
1195 | rather than in the string table. */ | |
1196 | ||
1197 | if (c_symbol == NULL | |
1198 | || c_symbol->native == NULL) | |
c8e7bf0d NC |
1199 | /* This is not a COFF symbol, so it certainly is not a |
1200 | file name, nor does it go in the .debug section. */ | |
1201 | maxlen = bfd_coff_force_symnames_in_strings (abfd) ? 0 : SYMNMLEN; | |
1202 | ||
252b5132 RH |
1203 | else if (bfd_coff_symname_in_debug (abfd, |
1204 | &c_symbol->native->u.syment)) | |
c8e7bf0d NC |
1205 | /* This symbol name is in the XCOFF .debug section. |
1206 | Don't write it into the string table. */ | |
1207 | maxlen = name_length; | |
1208 | ||
252b5132 RH |
1209 | else if (c_symbol->native->u.syment.n_sclass == C_FILE |
1210 | && c_symbol->native->u.syment.n_numaux > 0) | |
7f6d05e8 | 1211 | { |
244148ad | 1212 | if (bfd_coff_force_symnames_in_strings (abfd)) |
dc810e39 AM |
1213 | { |
1214 | if (bfd_bwrite (".file", (bfd_size_type) 6, abfd) != 6) | |
b34976b6 | 1215 | return FALSE; |
dc810e39 | 1216 | } |
7f6d05e8 CP |
1217 | maxlen = bfd_coff_filnmlen (abfd); |
1218 | } | |
252b5132 | 1219 | else |
7f6d05e8 | 1220 | maxlen = bfd_coff_force_symnames_in_strings (abfd) ? 0 : SYMNMLEN; |
252b5132 RH |
1221 | |
1222 | if (name_length > maxlen) | |
1223 | { | |
c8e7bf0d | 1224 | if (bfd_bwrite ((void *) (q->name), (bfd_size_type) name_length + 1, |
dc810e39 | 1225 | abfd) != name_length + 1) |
b34976b6 | 1226 | return FALSE; |
252b5132 RH |
1227 | } |
1228 | } | |
1229 | } | |
1230 | else | |
1231 | { | |
1232 | /* We would normally not write anything here, but we'll write | |
1233 | out 4 so that any stupid coff reader which tries to read the | |
1234 | string table even when there isn't one won't croak. */ | |
1235 | unsigned int size = STRING_SIZE_SIZE; | |
1236 | bfd_byte buffer[STRING_SIZE_SIZE]; | |
1237 | ||
1238 | #if STRING_SIZE_SIZE == 4 | |
dc810e39 | 1239 | H_PUT_32 (abfd, size, buffer); |
252b5132 | 1240 | #else |
dc810e39 | 1241 | #error Change H_PUT_32 |
252b5132 | 1242 | #endif |
c8e7bf0d | 1243 | if (bfd_bwrite ((void *) buffer, (bfd_size_type) STRING_SIZE_SIZE, abfd) |
252b5132 | 1244 | != STRING_SIZE_SIZE) |
b34976b6 | 1245 | return FALSE; |
252b5132 RH |
1246 | } |
1247 | ||
1248 | /* Make sure the .debug section was created to be the correct size. | |
1249 | We should create it ourselves on the fly, but we don't because | |
1250 | BFD won't let us write to any section until we know how large all | |
1251 | the sections are. We could still do it by making another pass | |
1252 | over the symbols. FIXME. */ | |
1253 | BFD_ASSERT (debug_string_size == 0 | |
1254 | || (debug_string_section != (asection *) NULL | |
1255 | && (BFD_ALIGN (debug_string_size, | |
1256 | 1 << debug_string_section->alignment_power) | |
eea6121a | 1257 | == debug_string_section->size))); |
252b5132 | 1258 | |
b34976b6 | 1259 | return TRUE; |
252b5132 RH |
1260 | } |
1261 | ||
b34976b6 | 1262 | bfd_boolean |
c8e7bf0d | 1263 | coff_write_linenumbers (bfd *abfd) |
252b5132 RH |
1264 | { |
1265 | asection *s; | |
1266 | bfd_size_type linesz; | |
c8e7bf0d | 1267 | void * buff; |
252b5132 RH |
1268 | |
1269 | linesz = bfd_coff_linesz (abfd); | |
1270 | buff = bfd_alloc (abfd, linesz); | |
1271 | if (!buff) | |
b34976b6 | 1272 | return FALSE; |
252b5132 RH |
1273 | for (s = abfd->sections; s != (asection *) NULL; s = s->next) |
1274 | { | |
1275 | if (s->lineno_count) | |
1276 | { | |
1277 | asymbol **q = abfd->outsymbols; | |
1278 | if (bfd_seek (abfd, s->line_filepos, SEEK_SET) != 0) | |
b34976b6 | 1279 | return FALSE; |
c8e7bf0d | 1280 | /* Find all the linenumbers in this section. */ |
252b5132 RH |
1281 | while (*q) |
1282 | { | |
1283 | asymbol *p = *q; | |
1284 | if (p->section->output_section == s) | |
1285 | { | |
1286 | alent *l = | |
1287 | BFD_SEND (bfd_asymbol_bfd (p), _get_lineno, | |
1288 | (bfd_asymbol_bfd (p), p)); | |
1289 | if (l) | |
1290 | { | |
c8e7bf0d | 1291 | /* Found a linenumber entry, output. */ |
252b5132 | 1292 | struct internal_lineno out; |
c8e7bf0d | 1293 | memset ((void *) & out, 0, sizeof (out)); |
252b5132 RH |
1294 | out.l_lnno = 0; |
1295 | out.l_addr.l_symndx = l->u.offset; | |
1296 | bfd_coff_swap_lineno_out (abfd, &out, buff); | |
dc810e39 AM |
1297 | if (bfd_bwrite (buff, (bfd_size_type) linesz, abfd) |
1298 | != linesz) | |
b34976b6 | 1299 | return FALSE; |
252b5132 RH |
1300 | l++; |
1301 | while (l->line_number) | |
1302 | { | |
1303 | out.l_lnno = l->line_number; | |
1304 | out.l_addr.l_symndx = l->u.offset; | |
1305 | bfd_coff_swap_lineno_out (abfd, &out, buff); | |
dc810e39 AM |
1306 | if (bfd_bwrite (buff, (bfd_size_type) linesz, abfd) |
1307 | != linesz) | |
b34976b6 | 1308 | return FALSE; |
252b5132 RH |
1309 | l++; |
1310 | } | |
1311 | } | |
1312 | } | |
1313 | q++; | |
1314 | } | |
1315 | } | |
1316 | } | |
1317 | bfd_release (abfd, buff); | |
b34976b6 | 1318 | return TRUE; |
252b5132 RH |
1319 | } |
1320 | ||
252b5132 | 1321 | alent * |
c8e7bf0d | 1322 | coff_get_lineno (bfd *ignore_abfd ATTRIBUTE_UNUSED, asymbol *symbol) |
252b5132 RH |
1323 | { |
1324 | return coffsymbol (symbol)->lineno; | |
1325 | } | |
1326 | ||
252b5132 RH |
1327 | /* This function transforms the offsets into the symbol table into |
1328 | pointers to syments. */ | |
1329 | ||
1330 | static void | |
c8e7bf0d NC |
1331 | coff_pointerize_aux (bfd *abfd, |
1332 | combined_entry_type *table_base, | |
1333 | combined_entry_type *symbol, | |
1334 | unsigned int indaux, | |
1335 | combined_entry_type *auxent) | |
252b5132 RH |
1336 | { |
1337 | unsigned int type = symbol->u.syment.n_type; | |
1338 | unsigned int class = symbol->u.syment.n_sclass; | |
1339 | ||
1340 | if (coff_backend_info (abfd)->_bfd_coff_pointerize_aux_hook) | |
1341 | { | |
1342 | if ((*coff_backend_info (abfd)->_bfd_coff_pointerize_aux_hook) | |
1343 | (abfd, table_base, symbol, indaux, auxent)) | |
1344 | return; | |
1345 | } | |
1346 | ||
c8e7bf0d | 1347 | /* Don't bother if this is a file or a section. */ |
252b5132 RH |
1348 | if (class == C_STAT && type == T_NULL) |
1349 | return; | |
1350 | if (class == C_FILE) | |
1351 | return; | |
1352 | ||
c8e7bf0d NC |
1353 | /* Otherwise patch up. */ |
1354 | #define N_TMASK coff_data (abfd)->local_n_tmask | |
252b5132 | 1355 | #define N_BTSHFT coff_data (abfd)->local_n_btshft |
c8e7bf0d | 1356 | |
252b5132 RH |
1357 | if ((ISFCN (type) || ISTAG (class) || class == C_BLOCK || class == C_FCN) |
1358 | && auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l > 0) | |
1359 | { | |
1360 | auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p = | |
1361 | table_base + auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l; | |
1362 | auxent->fix_end = 1; | |
1363 | } | |
1364 | /* A negative tagndx is meaningless, but the SCO 3.2v4 cc can | |
1365 | generate one, so we must be careful to ignore it. */ | |
1366 | if (auxent->u.auxent.x_sym.x_tagndx.l > 0) | |
1367 | { | |
1368 | auxent->u.auxent.x_sym.x_tagndx.p = | |
1369 | table_base + auxent->u.auxent.x_sym.x_tagndx.l; | |
1370 | auxent->fix_tag = 1; | |
1371 | } | |
1372 | } | |
1373 | ||
1374 | /* Allocate space for the ".debug" section, and read it. | |
1375 | We did not read the debug section until now, because | |
244148ad | 1376 | we didn't want to go to the trouble until someone needed it. */ |
252b5132 RH |
1377 | |
1378 | static char * | |
c8e7bf0d | 1379 | build_debug_section (bfd *abfd) |
252b5132 RH |
1380 | { |
1381 | char *debug_section; | |
dc810e39 AM |
1382 | file_ptr position; |
1383 | bfd_size_type sec_size; | |
252b5132 RH |
1384 | |
1385 | asection *sect = bfd_get_section_by_name (abfd, ".debug"); | |
1386 | ||
1387 | if (!sect) | |
1388 | { | |
1389 | bfd_set_error (bfd_error_no_debug_section); | |
1390 | return NULL; | |
1391 | } | |
1392 | ||
eea6121a | 1393 | sec_size = sect->size; |
c8e7bf0d | 1394 | debug_section = bfd_alloc (abfd, sec_size); |
252b5132 RH |
1395 | if (debug_section == NULL) |
1396 | return NULL; | |
1397 | ||
244148ad | 1398 | /* Seek to the beginning of the `.debug' section and read it. |
252b5132 RH |
1399 | Save the current position first; it is needed by our caller. |
1400 | Then read debug section and reset the file pointer. */ | |
1401 | ||
1402 | position = bfd_tell (abfd); | |
1403 | if (bfd_seek (abfd, sect->filepos, SEEK_SET) != 0 | |
dc810e39 | 1404 | || bfd_bread (debug_section, sec_size, abfd) != sec_size |
252b5132 RH |
1405 | || bfd_seek (abfd, position, SEEK_SET) != 0) |
1406 | return NULL; | |
1407 | return debug_section; | |
1408 | } | |
1409 | ||
252b5132 RH |
1410 | /* Return a pointer to a malloc'd copy of 'name'. 'name' may not be |
1411 | \0-terminated, but will not exceed 'maxlen' characters. The copy *will* | |
1412 | be \0-terminated. */ | |
c8e7bf0d | 1413 | |
252b5132 | 1414 | static char * |
c8e7bf0d | 1415 | copy_name (bfd *abfd, char *name, size_t maxlen) |
252b5132 | 1416 | { |
dc810e39 | 1417 | size_t len; |
252b5132 RH |
1418 | char *newname; |
1419 | ||
1420 | for (len = 0; len < maxlen; ++len) | |
c8e7bf0d NC |
1421 | if (name[len] == '\0') |
1422 | break; | |
1423 | ||
1424 | if ((newname = bfd_alloc (abfd, (bfd_size_type) len + 1)) == NULL) | |
1425 | return NULL; | |
252b5132 | 1426 | |
252b5132 RH |
1427 | strncpy (newname, name, len); |
1428 | newname[len] = '\0'; | |
1429 | return newname; | |
1430 | } | |
1431 | ||
1432 | /* Read in the external symbols. */ | |
1433 | ||
b34976b6 | 1434 | bfd_boolean |
c8e7bf0d | 1435 | _bfd_coff_get_external_symbols (bfd *abfd) |
252b5132 RH |
1436 | { |
1437 | bfd_size_type symesz; | |
dc810e39 | 1438 | bfd_size_type size; |
c8e7bf0d | 1439 | void * syms; |
252b5132 RH |
1440 | |
1441 | if (obj_coff_external_syms (abfd) != NULL) | |
b34976b6 | 1442 | return TRUE; |
252b5132 RH |
1443 | |
1444 | symesz = bfd_coff_symesz (abfd); | |
1445 | ||
1446 | size = obj_raw_syment_count (abfd) * symesz; | |
1447 | ||
c8e7bf0d | 1448 | syms = bfd_malloc (size); |
252b5132 | 1449 | if (syms == NULL && size != 0) |
b34976b6 | 1450 | return FALSE; |
252b5132 RH |
1451 | |
1452 | if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0 | |
dc810e39 | 1453 | || bfd_bread (syms, size, abfd) != size) |
252b5132 RH |
1454 | { |
1455 | if (syms != NULL) | |
1456 | free (syms); | |
b34976b6 | 1457 | return FALSE; |
252b5132 RH |
1458 | } |
1459 | ||
1460 | obj_coff_external_syms (abfd) = syms; | |
1461 | ||
b34976b6 | 1462 | return TRUE; |
252b5132 RH |
1463 | } |
1464 | ||
1465 | /* Read in the external strings. The strings are not loaded until | |
1466 | they are needed. This is because we have no simple way of | |
1467 | detecting a missing string table in an archive. */ | |
1468 | ||
1469 | const char * | |
c8e7bf0d | 1470 | _bfd_coff_read_string_table (bfd *abfd) |
252b5132 RH |
1471 | { |
1472 | char extstrsize[STRING_SIZE_SIZE]; | |
dc810e39 | 1473 | bfd_size_type strsize; |
252b5132 | 1474 | char *strings; |
dc810e39 | 1475 | file_ptr pos; |
252b5132 RH |
1476 | |
1477 | if (obj_coff_strings (abfd) != NULL) | |
1478 | return obj_coff_strings (abfd); | |
1479 | ||
1480 | if (obj_sym_filepos (abfd) == 0) | |
1481 | { | |
1482 | bfd_set_error (bfd_error_no_symbols); | |
1483 | return NULL; | |
1484 | } | |
1485 | ||
dc810e39 AM |
1486 | pos = obj_sym_filepos (abfd); |
1487 | pos += obj_raw_syment_count (abfd) * bfd_coff_symesz (abfd); | |
1488 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) | |
252b5132 | 1489 | return NULL; |
244148ad | 1490 | |
dc810e39 AM |
1491 | if (bfd_bread (extstrsize, (bfd_size_type) sizeof extstrsize, abfd) |
1492 | != sizeof extstrsize) | |
252b5132 RH |
1493 | { |
1494 | if (bfd_get_error () != bfd_error_file_truncated) | |
1495 | return NULL; | |
1496 | ||
1497 | /* There is no string table. */ | |
1498 | strsize = STRING_SIZE_SIZE; | |
1499 | } | |
1500 | else | |
1501 | { | |
1502 | #if STRING_SIZE_SIZE == 4 | |
dc810e39 | 1503 | strsize = H_GET_32 (abfd, extstrsize); |
252b5132 | 1504 | #else |
dc810e39 | 1505 | #error Change H_GET_32 |
252b5132 RH |
1506 | #endif |
1507 | } | |
1508 | ||
1509 | if (strsize < STRING_SIZE_SIZE) | |
1510 | { | |
1511 | (*_bfd_error_handler) | |
d003868e | 1512 | (_("%B: bad string table size %lu"), abfd, (unsigned long) strsize); |
252b5132 RH |
1513 | bfd_set_error (bfd_error_bad_value); |
1514 | return NULL; | |
1515 | } | |
1516 | ||
c8e7bf0d | 1517 | strings = bfd_malloc (strsize); |
252b5132 RH |
1518 | if (strings == NULL) |
1519 | return NULL; | |
1520 | ||
dc810e39 | 1521 | if (bfd_bread (strings + STRING_SIZE_SIZE, strsize - STRING_SIZE_SIZE, abfd) |
252b5132 RH |
1522 | != strsize - STRING_SIZE_SIZE) |
1523 | { | |
1524 | free (strings); | |
1525 | return NULL; | |
1526 | } | |
1527 | ||
1528 | obj_coff_strings (abfd) = strings; | |
1529 | ||
1530 | return strings; | |
1531 | } | |
1532 | ||
1533 | /* Free up the external symbols and strings read from a COFF file. */ | |
1534 | ||
b34976b6 | 1535 | bfd_boolean |
c8e7bf0d | 1536 | _bfd_coff_free_symbols (bfd *abfd) |
252b5132 RH |
1537 | { |
1538 | if (obj_coff_external_syms (abfd) != NULL | |
1539 | && ! obj_coff_keep_syms (abfd)) | |
1540 | { | |
1541 | free (obj_coff_external_syms (abfd)); | |
1542 | obj_coff_external_syms (abfd) = NULL; | |
1543 | } | |
1544 | if (obj_coff_strings (abfd) != NULL | |
1545 | && ! obj_coff_keep_strings (abfd)) | |
1546 | { | |
1547 | free (obj_coff_strings (abfd)); | |
1548 | obj_coff_strings (abfd) = NULL; | |
1549 | } | |
b34976b6 | 1550 | return TRUE; |
252b5132 RH |
1551 | } |
1552 | ||
1553 | /* Read a symbol table into freshly bfd_allocated memory, swap it, and | |
1554 | knit the symbol names into a normalized form. By normalized here I | |
1555 | mean that all symbols have an n_offset pointer that points to a null- | |
1556 | terminated string. */ | |
1557 | ||
1558 | combined_entry_type * | |
c8e7bf0d | 1559 | coff_get_normalized_symtab (bfd *abfd) |
252b5132 RH |
1560 | { |
1561 | combined_entry_type *internal; | |
1562 | combined_entry_type *internal_ptr; | |
1563 | combined_entry_type *symbol_ptr; | |
1564 | combined_entry_type *internal_end; | |
dc810e39 | 1565 | size_t symesz; |
252b5132 RH |
1566 | char *raw_src; |
1567 | char *raw_end; | |
1568 | const char *string_table = NULL; | |
1569 | char *debug_section = NULL; | |
dc810e39 | 1570 | bfd_size_type size; |
252b5132 RH |
1571 | |
1572 | if (obj_raw_syments (abfd) != NULL) | |
1573 | return obj_raw_syments (abfd); | |
1574 | ||
1575 | size = obj_raw_syment_count (abfd) * sizeof (combined_entry_type); | |
c8e7bf0d | 1576 | internal = bfd_zalloc (abfd, size); |
252b5132 RH |
1577 | if (internal == NULL && size != 0) |
1578 | return NULL; | |
1579 | internal_end = internal + obj_raw_syment_count (abfd); | |
1580 | ||
1581 | if (! _bfd_coff_get_external_symbols (abfd)) | |
1582 | return NULL; | |
1583 | ||
1584 | raw_src = (char *) obj_coff_external_syms (abfd); | |
1585 | ||
c8e7bf0d | 1586 | /* Mark the end of the symbols. */ |
252b5132 RH |
1587 | symesz = bfd_coff_symesz (abfd); |
1588 | raw_end = (char *) raw_src + obj_raw_syment_count (abfd) * symesz; | |
1589 | ||
1590 | /* FIXME SOMEDAY. A string table size of zero is very weird, but | |
1591 | probably possible. If one shows up, it will probably kill us. */ | |
1592 | ||
c8e7bf0d | 1593 | /* Swap all the raw entries. */ |
252b5132 RH |
1594 | for (internal_ptr = internal; |
1595 | raw_src < raw_end; | |
1596 | raw_src += symesz, internal_ptr++) | |
1597 | { | |
1598 | ||
1599 | unsigned int i; | |
c8e7bf0d NC |
1600 | bfd_coff_swap_sym_in (abfd, (void *) raw_src, |
1601 | (void *) & internal_ptr->u.syment); | |
252b5132 RH |
1602 | symbol_ptr = internal_ptr; |
1603 | ||
1604 | for (i = 0; | |
1605 | i < symbol_ptr->u.syment.n_numaux; | |
1606 | i++) | |
1607 | { | |
1608 | internal_ptr++; | |
1609 | raw_src += symesz; | |
c8e7bf0d | 1610 | bfd_coff_swap_aux_in (abfd, (void *) raw_src, |
252b5132 RH |
1611 | symbol_ptr->u.syment.n_type, |
1612 | symbol_ptr->u.syment.n_sclass, | |
dc810e39 | 1613 | (int) i, symbol_ptr->u.syment.n_numaux, |
252b5132 RH |
1614 | &(internal_ptr->u.auxent)); |
1615 | coff_pointerize_aux (abfd, internal, symbol_ptr, i, | |
1616 | internal_ptr); | |
1617 | } | |
1618 | } | |
1619 | ||
1620 | /* Free the raw symbols, but not the strings (if we have them). */ | |
b34976b6 | 1621 | obj_coff_keep_strings (abfd) = TRUE; |
252b5132 RH |
1622 | if (! _bfd_coff_free_symbols (abfd)) |
1623 | return NULL; | |
1624 | ||
1625 | for (internal_ptr = internal; internal_ptr < internal_end; | |
1626 | internal_ptr++) | |
1627 | { | |
1628 | if (internal_ptr->u.syment.n_sclass == C_FILE | |
1629 | && internal_ptr->u.syment.n_numaux > 0) | |
1630 | { | |
c8e7bf0d NC |
1631 | /* Make a file symbol point to the name in the auxent, since |
1632 | the text ".file" is redundant. */ | |
252b5132 RH |
1633 | if ((internal_ptr + 1)->u.auxent.x_file.x_n.x_zeroes == 0) |
1634 | { | |
c8e7bf0d | 1635 | /* The filename is a long one, point into the string table. */ |
252b5132 RH |
1636 | if (string_table == NULL) |
1637 | { | |
1638 | string_table = _bfd_coff_read_string_table (abfd); | |
1639 | if (string_table == NULL) | |
1640 | return NULL; | |
1641 | } | |
1642 | ||
1643 | internal_ptr->u.syment._n._n_n._n_offset = | |
d2df793a | 1644 | ((bfd_hostptr_t) |
252b5132 RH |
1645 | (string_table |
1646 | + (internal_ptr + 1)->u.auxent.x_file.x_n.x_offset)); | |
1647 | } | |
1648 | else | |
1649 | { | |
7bb9db4d ILT |
1650 | /* Ordinary short filename, put into memory anyway. The |
1651 | Microsoft PE tools sometimes store a filename in | |
1652 | multiple AUX entries. */ | |
ec0ef80e DD |
1653 | if (internal_ptr->u.syment.n_numaux > 1 |
1654 | && coff_data (abfd)->pe) | |
c8e7bf0d | 1655 | internal_ptr->u.syment._n._n_n._n_offset = |
d2df793a | 1656 | ((bfd_hostptr_t) |
c8e7bf0d NC |
1657 | copy_name (abfd, |
1658 | (internal_ptr + 1)->u.auxent.x_file.x_fname, | |
1659 | internal_ptr->u.syment.n_numaux * symesz)); | |
ec0ef80e | 1660 | else |
c8e7bf0d | 1661 | internal_ptr->u.syment._n._n_n._n_offset = |
d2df793a | 1662 | ((bfd_hostptr_t) |
c8e7bf0d NC |
1663 | copy_name (abfd, |
1664 | (internal_ptr + 1)->u.auxent.x_file.x_fname, | |
1665 | (size_t) bfd_coff_filnmlen (abfd))); | |
252b5132 RH |
1666 | } |
1667 | } | |
1668 | else | |
1669 | { | |
1670 | if (internal_ptr->u.syment._n._n_n._n_zeroes != 0) | |
1671 | { | |
1672 | /* This is a "short" name. Make it long. */ | |
dc810e39 AM |
1673 | size_t i; |
1674 | char *newstring; | |
252b5132 | 1675 | |
c8e7bf0d | 1676 | /* Find the length of this string without walking into memory |
252b5132 RH |
1677 | that isn't ours. */ |
1678 | for (i = 0; i < 8; ++i) | |
dc810e39 AM |
1679 | if (internal_ptr->u.syment._n._n_name[i] == '\0') |
1680 | break; | |
252b5132 | 1681 | |
c8e7bf0d | 1682 | newstring = bfd_zalloc (abfd, (bfd_size_type) (i + 1)); |
dc810e39 | 1683 | if (newstring == NULL) |
c8e7bf0d | 1684 | return NULL; |
dc810e39 | 1685 | strncpy (newstring, internal_ptr->u.syment._n._n_name, i); |
d2df793a | 1686 | internal_ptr->u.syment._n._n_n._n_offset = (bfd_hostptr_t) newstring; |
252b5132 RH |
1687 | internal_ptr->u.syment._n._n_n._n_zeroes = 0; |
1688 | } | |
1689 | else if (internal_ptr->u.syment._n._n_n._n_offset == 0) | |
d2df793a | 1690 | internal_ptr->u.syment._n._n_n._n_offset = (bfd_vma) ""; |
252b5132 RH |
1691 | else if (!bfd_coff_symname_in_debug (abfd, &internal_ptr->u.syment)) |
1692 | { | |
1693 | /* Long name already. Point symbol at the string in the | |
1694 | table. */ | |
1695 | if (string_table == NULL) | |
1696 | { | |
1697 | string_table = _bfd_coff_read_string_table (abfd); | |
1698 | if (string_table == NULL) | |
1699 | return NULL; | |
1700 | } | |
1701 | internal_ptr->u.syment._n._n_n._n_offset = | |
d2df793a | 1702 | ((bfd_hostptr_t) |
252b5132 RH |
1703 | (string_table |
1704 | + internal_ptr->u.syment._n._n_n._n_offset)); | |
1705 | } | |
1706 | else | |
1707 | { | |
1708 | /* Long name in debug section. Very similar. */ | |
1709 | if (debug_section == NULL) | |
1710 | debug_section = build_debug_section (abfd); | |
d2df793a | 1711 | internal_ptr->u.syment._n._n_n._n_offset = (bfd_hostptr_t) |
252b5132 RH |
1712 | (debug_section + internal_ptr->u.syment._n._n_n._n_offset); |
1713 | } | |
1714 | } | |
1715 | internal_ptr += internal_ptr->u.syment.n_numaux; | |
1716 | } | |
1717 | ||
1718 | obj_raw_syments (abfd) = internal; | |
1719 | BFD_ASSERT (obj_raw_syment_count (abfd) | |
1720 | == (unsigned int) (internal_ptr - internal)); | |
1721 | ||
c8e7bf0d NC |
1722 | return internal; |
1723 | } | |
252b5132 RH |
1724 | |
1725 | long | |
c8e7bf0d | 1726 | coff_get_reloc_upper_bound (bfd *abfd, sec_ptr asect) |
252b5132 RH |
1727 | { |
1728 | if (bfd_get_format (abfd) != bfd_object) | |
1729 | { | |
1730 | bfd_set_error (bfd_error_invalid_operation); | |
1731 | return -1; | |
1732 | } | |
1733 | return (asect->reloc_count + 1) * sizeof (arelent *); | |
1734 | } | |
1735 | ||
1736 | asymbol * | |
c8e7bf0d | 1737 | coff_make_empty_symbol (bfd *abfd) |
252b5132 | 1738 | { |
dc810e39 | 1739 | bfd_size_type amt = sizeof (coff_symbol_type); |
c8e7bf0d NC |
1740 | coff_symbol_type *new = bfd_zalloc (abfd, amt); |
1741 | ||
252b5132 | 1742 | if (new == NULL) |
c8e7bf0d | 1743 | return NULL; |
252b5132 RH |
1744 | new->symbol.section = 0; |
1745 | new->native = 0; | |
c8e7bf0d | 1746 | new->lineno = NULL; |
b34976b6 | 1747 | new->done_lineno = FALSE; |
252b5132 | 1748 | new->symbol.the_bfd = abfd; |
c8e7bf0d NC |
1749 | |
1750 | return & new->symbol; | |
252b5132 RH |
1751 | } |
1752 | ||
1753 | /* Make a debugging symbol. */ | |
1754 | ||
1755 | asymbol * | |
c8e7bf0d NC |
1756 | coff_bfd_make_debug_symbol (bfd *abfd, |
1757 | void * ptr ATTRIBUTE_UNUSED, | |
1758 | unsigned long sz ATTRIBUTE_UNUSED) | |
252b5132 | 1759 | { |
dc810e39 | 1760 | bfd_size_type amt = sizeof (coff_symbol_type); |
c8e7bf0d NC |
1761 | coff_symbol_type *new = bfd_alloc (abfd, amt); |
1762 | ||
252b5132 | 1763 | if (new == NULL) |
c8e7bf0d | 1764 | return NULL; |
252b5132 RH |
1765 | /* @@ The 10 is a guess at a plausible maximum number of aux entries |
1766 | (but shouldn't be a constant). */ | |
dc810e39 | 1767 | amt = sizeof (combined_entry_type) * 10; |
c8e7bf0d | 1768 | new->native = bfd_zalloc (abfd, amt); |
252b5132 | 1769 | if (!new->native) |
c8e7bf0d | 1770 | return NULL; |
252b5132 RH |
1771 | new->symbol.section = bfd_abs_section_ptr; |
1772 | new->symbol.flags = BSF_DEBUGGING; | |
c8e7bf0d | 1773 | new->lineno = NULL; |
b34976b6 | 1774 | new->done_lineno = FALSE; |
252b5132 | 1775 | new->symbol.the_bfd = abfd; |
c8e7bf0d NC |
1776 | |
1777 | return & new->symbol; | |
252b5132 RH |
1778 | } |
1779 | ||
252b5132 | 1780 | void |
c8e7bf0d | 1781 | coff_get_symbol_info (bfd *abfd, asymbol *symbol, symbol_info *ret) |
252b5132 RH |
1782 | { |
1783 | bfd_symbol_info (symbol, ret); | |
c8e7bf0d | 1784 | |
252b5132 RH |
1785 | if (coffsymbol (symbol)->native != NULL |
1786 | && coffsymbol (symbol)->native->fix_value) | |
c8e7bf0d | 1787 | ret->value = coffsymbol (symbol)->native->u.syment.n_value - |
d2df793a | 1788 | (bfd_hostptr_t) obj_raw_syments (abfd); |
252b5132 RH |
1789 | } |
1790 | ||
1791 | /* Return the COFF syment for a symbol. */ | |
1792 | ||
b34976b6 | 1793 | bfd_boolean |
c8e7bf0d NC |
1794 | bfd_coff_get_syment (bfd *abfd, |
1795 | asymbol *symbol, | |
1796 | struct internal_syment *psyment) | |
252b5132 RH |
1797 | { |
1798 | coff_symbol_type *csym; | |
1799 | ||
1800 | csym = coff_symbol_from (abfd, symbol); | |
1801 | if (csym == NULL || csym->native == NULL) | |
1802 | { | |
1803 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 1804 | return FALSE; |
252b5132 RH |
1805 | } |
1806 | ||
1807 | *psyment = csym->native->u.syment; | |
1808 | ||
1809 | if (csym->native->fix_value) | |
dc810e39 | 1810 | psyment->n_value = psyment->n_value - |
d2df793a | 1811 | (bfd_hostptr_t) obj_raw_syments (abfd); |
252b5132 RH |
1812 | |
1813 | /* FIXME: We should handle fix_line here. */ | |
1814 | ||
b34976b6 | 1815 | return TRUE; |
252b5132 RH |
1816 | } |
1817 | ||
1818 | /* Return the COFF auxent for a symbol. */ | |
1819 | ||
b34976b6 | 1820 | bfd_boolean |
c8e7bf0d NC |
1821 | bfd_coff_get_auxent (bfd *abfd, |
1822 | asymbol *symbol, | |
1823 | int indx, | |
1824 | union internal_auxent *pauxent) | |
252b5132 RH |
1825 | { |
1826 | coff_symbol_type *csym; | |
1827 | combined_entry_type *ent; | |
1828 | ||
1829 | csym = coff_symbol_from (abfd, symbol); | |
1830 | ||
1831 | if (csym == NULL | |
1832 | || csym->native == NULL | |
1833 | || indx >= csym->native->u.syment.n_numaux) | |
1834 | { | |
1835 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 1836 | return FALSE; |
252b5132 RH |
1837 | } |
1838 | ||
1839 | ent = csym->native + indx + 1; | |
1840 | ||
1841 | *pauxent = ent->u.auxent; | |
1842 | ||
1843 | if (ent->fix_tag) | |
1844 | pauxent->x_sym.x_tagndx.l = | |
1845 | ((combined_entry_type *) pauxent->x_sym.x_tagndx.p | |
1846 | - obj_raw_syments (abfd)); | |
1847 | ||
1848 | if (ent->fix_end) | |
1849 | pauxent->x_sym.x_fcnary.x_fcn.x_endndx.l = | |
1850 | ((combined_entry_type *) pauxent->x_sym.x_fcnary.x_fcn.x_endndx.p | |
1851 | - obj_raw_syments (abfd)); | |
1852 | ||
1853 | if (ent->fix_scnlen) | |
1854 | pauxent->x_csect.x_scnlen.l = | |
1855 | ((combined_entry_type *) pauxent->x_csect.x_scnlen.p | |
1856 | - obj_raw_syments (abfd)); | |
1857 | ||
b34976b6 | 1858 | return TRUE; |
252b5132 RH |
1859 | } |
1860 | ||
1861 | /* Print out information about COFF symbol. */ | |
1862 | ||
1863 | void | |
c8e7bf0d NC |
1864 | coff_print_symbol (bfd *abfd, |
1865 | void * filep, | |
1866 | asymbol *symbol, | |
1867 | bfd_print_symbol_type how) | |
252b5132 | 1868 | { |
c8e7bf0d | 1869 | FILE * file = (FILE *) filep; |
252b5132 RH |
1870 | |
1871 | switch (how) | |
1872 | { | |
1873 | case bfd_print_symbol_name: | |
1874 | fprintf (file, "%s", symbol->name); | |
1875 | break; | |
1876 | ||
1877 | case bfd_print_symbol_more: | |
1878 | fprintf (file, "coff %s %s", | |
1879 | coffsymbol (symbol)->native ? "n" : "g", | |
1880 | coffsymbol (symbol)->lineno ? "l" : " "); | |
1881 | break; | |
1882 | ||
1883 | case bfd_print_symbol_all: | |
1884 | if (coffsymbol (symbol)->native) | |
1885 | { | |
beb1bf64 | 1886 | bfd_vma val; |
252b5132 RH |
1887 | unsigned int aux; |
1888 | combined_entry_type *combined = coffsymbol (symbol)->native; | |
1889 | combined_entry_type *root = obj_raw_syments (abfd); | |
1890 | struct lineno_cache_entry *l = coffsymbol (symbol)->lineno; | |
1891 | ||
1892 | fprintf (file, "[%3ld]", (long) (combined - root)); | |
1893 | ||
1894 | if (! combined->fix_value) | |
beb1bf64 | 1895 | val = (bfd_vma) combined->u.syment.n_value; |
252b5132 | 1896 | else |
d2df793a | 1897 | val = combined->u.syment.n_value - (bfd_hostptr_t) root; |
252b5132 | 1898 | |
7920ce38 | 1899 | fprintf (file, "(sec %2d)(fl 0x%02x)(ty %3x)(scl %3d) (nx %d) 0x", |
252b5132 RH |
1900 | combined->u.syment.n_scnum, |
1901 | combined->u.syment.n_flags, | |
1902 | combined->u.syment.n_type, | |
1903 | combined->u.syment.n_sclass, | |
745c12f8 | 1904 | combined->u.syment.n_numaux); |
970ccc77 NC |
1905 | #ifdef BFD64 |
1906 | /* fprintf_vma() on a 64-bit enabled host will always print a 64-bit | |
1907 | value, but really we want to display the address in the target's | |
1908 | address size. Since we do not have a field in the bfd structure | |
1909 | to tell us this, we take a guess, based on the target's name. */ | |
1910 | if (strstr (bfd_get_target (abfd), "64") == NULL) | |
1911 | fprintf (file, "%08lx", (unsigned long) (val & 0xffffffff)); | |
1912 | else | |
1913 | #endif | |
1914 | fprintf_vma (file, val); | |
745c12f8 | 1915 | fprintf (file, " %s", symbol->name); |
252b5132 RH |
1916 | |
1917 | for (aux = 0; aux < combined->u.syment.n_numaux; aux++) | |
1918 | { | |
1919 | combined_entry_type *auxp = combined + aux + 1; | |
1920 | long tagndx; | |
1921 | ||
1922 | if (auxp->fix_tag) | |
1923 | tagndx = auxp->u.auxent.x_sym.x_tagndx.p - root; | |
1924 | else | |
1925 | tagndx = auxp->u.auxent.x_sym.x_tagndx.l; | |
1926 | ||
1927 | fprintf (file, "\n"); | |
1928 | ||
1929 | if (bfd_coff_print_aux (abfd, file, root, combined, auxp, aux)) | |
1930 | continue; | |
1931 | ||
1932 | switch (combined->u.syment.n_sclass) | |
1933 | { | |
1934 | case C_FILE: | |
1935 | fprintf (file, "File "); | |
1936 | break; | |
1937 | ||
1938 | case C_STAT: | |
1939 | if (combined->u.syment.n_type == T_NULL) | |
c8e7bf0d | 1940 | /* Probably a section symbol ? */ |
252b5132 RH |
1941 | { |
1942 | fprintf (file, "AUX scnlen 0x%lx nreloc %d nlnno %d", | |
1943 | (long) auxp->u.auxent.x_scn.x_scnlen, | |
1944 | auxp->u.auxent.x_scn.x_nreloc, | |
1945 | auxp->u.auxent.x_scn.x_nlinno); | |
1946 | if (auxp->u.auxent.x_scn.x_checksum != 0 | |
1947 | || auxp->u.auxent.x_scn.x_associated != 0 | |
1948 | || auxp->u.auxent.x_scn.x_comdat != 0) | |
1949 | fprintf (file, " checksum 0x%lx assoc %d comdat %d", | |
1950 | auxp->u.auxent.x_scn.x_checksum, | |
1951 | auxp->u.auxent.x_scn.x_associated, | |
1952 | auxp->u.auxent.x_scn.x_comdat); | |
1953 | break; | |
1954 | } | |
c8e7bf0d | 1955 | /* Otherwise fall through. */ |
312191a6 ILT |
1956 | case C_EXT: |
1957 | if (ISFCN (combined->u.syment.n_type)) | |
1958 | { | |
cea4409c AM |
1959 | long next, llnos; |
1960 | ||
1961 | if (auxp->fix_end) | |
1962 | next = (auxp->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p | |
1963 | - root); | |
1964 | else | |
1965 | next = auxp->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l; | |
1966 | llnos = auxp->u.auxent.x_sym.x_fcnary.x_fcn.x_lnnoptr; | |
312191a6 | 1967 | fprintf (file, |
3d66c4f7 | 1968 | "AUX tagndx %ld ttlsiz 0x%lx lnnos %ld next %ld", |
cea4409c AM |
1969 | tagndx, auxp->u.auxent.x_sym.x_misc.x_fsize, |
1970 | llnos, next); | |
312191a6 ILT |
1971 | break; |
1972 | } | |
c8e7bf0d | 1973 | /* Otherwise fall through. */ |
252b5132 RH |
1974 | default: |
1975 | fprintf (file, "AUX lnno %d size 0x%x tagndx %ld", | |
1976 | auxp->u.auxent.x_sym.x_misc.x_lnsz.x_lnno, | |
1977 | auxp->u.auxent.x_sym.x_misc.x_lnsz.x_size, | |
1978 | tagndx); | |
1979 | if (auxp->fix_end) | |
1980 | fprintf (file, " endndx %ld", | |
1981 | ((long) | |
1982 | (auxp->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p | |
1983 | - root))); | |
1984 | break; | |
1985 | } | |
1986 | } | |
1987 | ||
1988 | if (l) | |
1989 | { | |
1990 | fprintf (file, "\n%s :", l->u.sym->name); | |
1991 | l++; | |
1992 | while (l->line_number) | |
1993 | { | |
745c12f8 NC |
1994 | fprintf (file, "\n%4d : ", l->line_number); |
1995 | fprintf_vma (file, l->u.offset + symbol->section->vma); | |
252b5132 RH |
1996 | l++; |
1997 | } | |
1998 | } | |
1999 | } | |
2000 | else | |
2001 | { | |
c8e7bf0d | 2002 | bfd_print_symbol_vandf (abfd, (void *) file, symbol); |
252b5132 RH |
2003 | fprintf (file, " %-5s %s %s %s", |
2004 | symbol->section->name, | |
2005 | coffsymbol (symbol)->native ? "n" : "g", | |
2006 | coffsymbol (symbol)->lineno ? "l" : " ", | |
2007 | symbol->name); | |
2008 | } | |
2009 | } | |
2010 | } | |
2011 | ||
2012 | /* Return whether a symbol name implies a local symbol. In COFF, | |
2013 | local symbols generally start with ``.L''. Most targets use this | |
2014 | function for the is_local_label_name entry point, but some may | |
2015 | override it. */ | |
2016 | ||
b34976b6 | 2017 | bfd_boolean |
c8e7bf0d NC |
2018 | _bfd_coff_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, |
2019 | const char *name) | |
252b5132 | 2020 | { |
b34976b6 | 2021 | return name[0] == '.' && name[1] == 'L'; |
252b5132 RH |
2022 | } |
2023 | ||
9a968f43 NC |
2024 | /* Provided a BFD, a section and an offset (in bytes, not octets) into the |
2025 | section, calculate and return the name of the source file and the line | |
2026 | nearest to the wanted location. */ | |
435b1e90 | 2027 | |
b34976b6 | 2028 | bfd_boolean |
c8e7bf0d NC |
2029 | coff_find_nearest_line (bfd *abfd, |
2030 | asection *section, | |
2031 | asymbol **symbols, | |
2032 | bfd_vma offset, | |
2033 | const char **filename_ptr, | |
2034 | const char **functionname_ptr, | |
2035 | unsigned int *line_ptr) | |
252b5132 | 2036 | { |
b34976b6 | 2037 | bfd_boolean found; |
252b5132 RH |
2038 | unsigned int i; |
2039 | unsigned int line_base; | |
2040 | coff_data_type *cof = coff_data (abfd); | |
c8e7bf0d | 2041 | /* Run through the raw syments if available. */ |
252b5132 RH |
2042 | combined_entry_type *p; |
2043 | combined_entry_type *pend; | |
2044 | alent *l; | |
2045 | struct coff_section_tdata *sec_data; | |
dc810e39 | 2046 | bfd_size_type amt; |
252b5132 RH |
2047 | |
2048 | /* Before looking through the symbol table, try to use a .stab | |
2049 | section to find the information. */ | |
2050 | if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, | |
2051 | &found, filename_ptr, | |
2052 | functionname_ptr, line_ptr, | |
51db3708 | 2053 | &coff_data(abfd)->line_info)) |
b34976b6 | 2054 | return FALSE; |
51db3708 | 2055 | |
4ca29a6a | 2056 | if (found) |
b34976b6 | 2057 | return TRUE; |
4ca29a6a | 2058 | |
51db3708 NC |
2059 | /* Also try examining DWARF2 debugging information. */ |
2060 | if (_bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset, | |
2061 | filename_ptr, functionname_ptr, | |
2062 | line_ptr, 0, | |
2063 | &coff_data(abfd)->dwarf2_find_line_info)) | |
b34976b6 | 2064 | return TRUE; |
51db3708 | 2065 | |
252b5132 RH |
2066 | *filename_ptr = 0; |
2067 | *functionname_ptr = 0; | |
2068 | *line_ptr = 0; | |
2069 | ||
c8e7bf0d | 2070 | /* Don't try and find line numbers in a non coff file. */ |
9bd09e22 | 2071 | if (!bfd_family_coff (abfd)) |
b34976b6 | 2072 | return FALSE; |
252b5132 RH |
2073 | |
2074 | if (cof == NULL) | |
b34976b6 | 2075 | return FALSE; |
252b5132 RH |
2076 | |
2077 | /* Find the first C_FILE symbol. */ | |
2078 | p = cof->raw_syments; | |
2079 | if (!p) | |
b34976b6 | 2080 | return FALSE; |
252b5132 RH |
2081 | |
2082 | pend = p + cof->raw_syment_count; | |
2083 | while (p < pend) | |
2084 | { | |
2085 | if (p->u.syment.n_sclass == C_FILE) | |
2086 | break; | |
2087 | p += 1 + p->u.syment.n_numaux; | |
2088 | } | |
2089 | ||
2090 | if (p < pend) | |
2091 | { | |
2092 | bfd_vma sec_vma; | |
2093 | bfd_vma maxdiff; | |
2094 | ||
2095 | /* Look through the C_FILE symbols to find the best one. */ | |
2096 | sec_vma = bfd_get_section_vma (abfd, section); | |
2097 | *filename_ptr = (char *) p->u.syment._n._n_n._n_offset; | |
2098 | maxdiff = (bfd_vma) 0 - (bfd_vma) 1; | |
2099 | while (1) | |
2100 | { | |
2101 | combined_entry_type *p2; | |
2102 | ||
2103 | for (p2 = p + 1 + p->u.syment.n_numaux; | |
2104 | p2 < pend; | |
2105 | p2 += 1 + p2->u.syment.n_numaux) | |
2106 | { | |
2107 | if (p2->u.syment.n_scnum > 0 | |
2108 | && (section | |
2109 | == coff_section_from_bfd_index (abfd, | |
2110 | p2->u.syment.n_scnum))) | |
2111 | break; | |
2112 | if (p2->u.syment.n_sclass == C_FILE) | |
2113 | { | |
2114 | p2 = pend; | |
2115 | break; | |
2116 | } | |
2117 | } | |
2118 | ||
798c1fb8 ILT |
2119 | /* We use <= MAXDIFF here so that if we get a zero length |
2120 | file, we actually use the next file entry. */ | |
252b5132 RH |
2121 | if (p2 < pend |
2122 | && offset + sec_vma >= (bfd_vma) p2->u.syment.n_value | |
798c1fb8 | 2123 | && offset + sec_vma - (bfd_vma) p2->u.syment.n_value <= maxdiff) |
252b5132 RH |
2124 | { |
2125 | *filename_ptr = (char *) p->u.syment._n._n_n._n_offset; | |
2126 | maxdiff = offset + sec_vma - p2->u.syment.n_value; | |
2127 | } | |
2128 | ||
2129 | /* Avoid endless loops on erroneous files by ensuring that | |
2130 | we always move forward in the file. */ | |
cea4409c | 2131 | if (p >= cof->raw_syments + p->u.syment.n_value) |
252b5132 RH |
2132 | break; |
2133 | ||
2134 | p = cof->raw_syments + p->u.syment.n_value; | |
2135 | if (p > pend || p->u.syment.n_sclass != C_FILE) | |
2136 | break; | |
2137 | } | |
2138 | } | |
2139 | ||
c8e7bf0d NC |
2140 | /* Now wander though the raw linenumbers of the section. */ |
2141 | /* If we have been called on this section before, and th. e offset we | |
252b5132 RH |
2142 | want is further down then we can prime the lookup loop. */ |
2143 | sec_data = coff_section_data (abfd, section); | |
2144 | if (sec_data != NULL | |
2145 | && sec_data->i > 0 | |
2146 | && offset >= sec_data->offset) | |
2147 | { | |
2148 | i = sec_data->i; | |
2149 | *functionname_ptr = sec_data->function; | |
2150 | line_base = sec_data->line_base; | |
2151 | } | |
2152 | else | |
2153 | { | |
2154 | i = 0; | |
2155 | line_base = 0; | |
2156 | } | |
2157 | ||
2158 | if (section->lineno != NULL) | |
2159 | { | |
798c1fb8 ILT |
2160 | bfd_vma last_value = 0; |
2161 | ||
252b5132 RH |
2162 | l = §ion->lineno[i]; |
2163 | ||
2164 | for (; i < section->lineno_count; i++) | |
2165 | { | |
2166 | if (l->line_number == 0) | |
2167 | { | |
c8e7bf0d | 2168 | /* Get the symbol this line number points at. */ |
252b5132 RH |
2169 | coff_symbol_type *coff = (coff_symbol_type *) (l->u.sym); |
2170 | if (coff->symbol.value > offset) | |
2171 | break; | |
2172 | *functionname_ptr = coff->symbol.name; | |
798c1fb8 | 2173 | last_value = coff->symbol.value; |
252b5132 RH |
2174 | if (coff->native) |
2175 | { | |
2176 | combined_entry_type *s = coff->native; | |
2177 | s = s + 1 + s->u.syment.n_numaux; | |
2178 | ||
2179 | /* In XCOFF a debugging symbol can follow the | |
2180 | function symbol. */ | |
2181 | if (s->u.syment.n_scnum == N_DEBUG) | |
2182 | s = s + 1 + s->u.syment.n_numaux; | |
2183 | ||
2184 | /* S should now point to the .bf of the function. */ | |
2185 | if (s->u.syment.n_numaux) | |
2186 | { | |
2187 | /* The linenumber is stored in the auxent. */ | |
2188 | union internal_auxent *a = &((s + 1)->u.auxent); | |
2189 | line_base = a->x_sym.x_misc.x_lnsz.x_lnno; | |
2190 | *line_ptr = line_base; | |
2191 | } | |
2192 | } | |
2193 | } | |
2194 | else | |
2195 | { | |
2196 | if (l->u.offset > offset) | |
2197 | break; | |
2198 | *line_ptr = l->line_number + line_base - 1; | |
2199 | } | |
2200 | l++; | |
2201 | } | |
798c1fb8 ILT |
2202 | |
2203 | /* If we fell off the end of the loop, then assume that this | |
2204 | symbol has no line number info. Otherwise, symbols with no | |
2205 | line number info get reported with the line number of the | |
2206 | last line of the last symbol which does have line number | |
2207 | info. We use 0x100 as a slop to account for cases where the | |
2208 | last line has executable code. */ | |
2209 | if (i >= section->lineno_count | |
2210 | && last_value != 0 | |
2211 | && offset - last_value > 0x100) | |
2212 | { | |
2213 | *functionname_ptr = NULL; | |
2214 | *line_ptr = 0; | |
2215 | } | |
252b5132 RH |
2216 | } |
2217 | ||
2218 | /* Cache the results for the next call. */ | |
2219 | if (sec_data == NULL && section->owner == abfd) | |
2220 | { | |
dc810e39 | 2221 | amt = sizeof (struct coff_section_tdata); |
c8e7bf0d | 2222 | section->used_by_bfd = bfd_zalloc (abfd, amt); |
252b5132 RH |
2223 | sec_data = (struct coff_section_tdata *) section->used_by_bfd; |
2224 | } | |
2225 | if (sec_data != NULL) | |
2226 | { | |
2227 | sec_data->offset = offset; | |
2228 | sec_data->i = i; | |
2229 | sec_data->function = *functionname_ptr; | |
2230 | sec_data->line_base = line_base; | |
2231 | } | |
2232 | ||
b34976b6 | 2233 | return TRUE; |
252b5132 RH |
2234 | } |
2235 | ||
4ab527b0 FF |
2236 | bfd_boolean |
2237 | coff_find_inliner_info (bfd *abfd, | |
2238 | const char **filename_ptr, | |
2239 | const char **functionname_ptr, | |
2240 | unsigned int *line_ptr) | |
2241 | { | |
2242 | bfd_boolean found; | |
2243 | ||
2244 | found = _bfd_dwarf2_find_inliner_info (abfd, filename_ptr, | |
2245 | functionname_ptr, line_ptr, | |
2246 | &coff_data(abfd)->dwarf2_find_line_info); | |
2247 | return (found); | |
2248 | } | |
2249 | ||
252b5132 | 2250 | int |
a6b96beb | 2251 | coff_sizeof_headers (bfd *abfd, struct bfd_link_info *info) |
252b5132 RH |
2252 | { |
2253 | size_t size; | |
2254 | ||
a6b96beb | 2255 | if (!info->relocatable) |
c8e7bf0d | 2256 | size = bfd_coff_filhsz (abfd) + bfd_coff_aoutsz (abfd); |
252b5132 | 2257 | else |
c8e7bf0d | 2258 | size = bfd_coff_filhsz (abfd); |
252b5132 RH |
2259 | |
2260 | size += abfd->section_count * bfd_coff_scnhsz (abfd); | |
2261 | return size; | |
2262 | } | |
2263 | ||
2264 | /* Change the class of a coff symbol held by BFD. */ | |
c8e7bf0d | 2265 | |
b34976b6 | 2266 | bfd_boolean |
c8e7bf0d NC |
2267 | bfd_coff_set_symbol_class (bfd * abfd, |
2268 | asymbol * symbol, | |
2269 | unsigned int class) | |
252b5132 RH |
2270 | { |
2271 | coff_symbol_type * csym; | |
2272 | ||
2273 | csym = coff_symbol_from (abfd, symbol); | |
2274 | if (csym == NULL) | |
2275 | { | |
2276 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 2277 | return FALSE; |
252b5132 RH |
2278 | } |
2279 | else if (csym->native == NULL) | |
2280 | { | |
2281 | /* This is an alien symbol which no native coff backend data. | |
2282 | We cheat here by creating a fake native entry for it and | |
2283 | then filling in the class. This code is based on that in | |
2284 | coff_write_alien_symbol(). */ | |
244148ad | 2285 | |
252b5132 | 2286 | combined_entry_type * native; |
dc810e39 | 2287 | bfd_size_type amt = sizeof (* native); |
252b5132 | 2288 | |
c8e7bf0d | 2289 | native = bfd_zalloc (abfd, amt); |
252b5132 | 2290 | if (native == NULL) |
b34976b6 | 2291 | return FALSE; |
252b5132 | 2292 | |
252b5132 RH |
2293 | native->u.syment.n_type = T_NULL; |
2294 | native->u.syment.n_sclass = class; | |
244148ad | 2295 | |
252b5132 RH |
2296 | if (bfd_is_und_section (symbol->section)) |
2297 | { | |
2298 | native->u.syment.n_scnum = N_UNDEF; | |
2299 | native->u.syment.n_value = symbol->value; | |
2300 | } | |
2301 | else if (bfd_is_com_section (symbol->section)) | |
2302 | { | |
2303 | native->u.syment.n_scnum = N_UNDEF; | |
2304 | native->u.syment.n_value = symbol->value; | |
2305 | } | |
2306 | else | |
2307 | { | |
2308 | native->u.syment.n_scnum = | |
2309 | symbol->section->output_section->target_index; | |
2310 | native->u.syment.n_value = (symbol->value | |
2311 | + symbol->section->output_offset); | |
2312 | if (! obj_pe (abfd)) | |
2313 | native->u.syment.n_value += symbol->section->output_section->vma; | |
244148ad | 2314 | |
08da05b0 | 2315 | /* Copy the any flags from the file header into the symbol. |
252b5132 RH |
2316 | FIXME: Why? */ |
2317 | native->u.syment.n_flags = bfd_asymbol_bfd (& csym->symbol)->flags; | |
2318 | } | |
244148ad | 2319 | |
252b5132 RH |
2320 | csym->native = native; |
2321 | } | |
2322 | else | |
c8e7bf0d | 2323 | csym->native->u.syment.n_sclass = class; |
244148ad | 2324 | |
b34976b6 | 2325 | return TRUE; |
252b5132 | 2326 | } |
082b7297 L |
2327 | |
2328 | struct coff_comdat_info * | |
2329 | bfd_coff_get_comdat_section (bfd *abfd, struct bfd_section *sec) | |
2330 | { | |
fedf8d51 AM |
2331 | if (bfd_get_flavour (abfd) == bfd_target_coff_flavour |
2332 | && coff_section_data (abfd, sec) != NULL) | |
082b7297 L |
2333 | return coff_section_data (abfd, sec)->comdat; |
2334 | else | |
2335 | return NULL; | |
2336 | } |