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, |
9bab7074 | 3 | 2000, 2001, 2002 |
252b5132 RH |
4 | Free Software Foundation, Inc. |
5 | Written by Cygnus Support. | |
6 | ||
7 | This file is part of BFD, the Binary File Descriptor library. | |
8 | ||
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 | |
11 | the Free Software Foundation; either version 2 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
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. | |
18 | ||
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 | |
21 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
22 | ||
23 | /* Most of this hacked by Steve Chamberlain, sac@cygnus.com. | |
24 | Split out of coffcode.h by Ian Taylor, ian@cygnus.com. */ | |
25 | ||
26 | /* This file contains COFF code that is not dependent on any | |
27 | particular COFF target. There is only one version of this file in | |
28 | libbfd.a, so no target specific code may be put in here. Or, to | |
29 | put it another way, | |
30 | ||
31 | ********** DO NOT PUT TARGET SPECIFIC CODE IN THIS FILE ********** | |
32 | ||
33 | If you need to add some target specific behaviour, add a new hook | |
34 | function to bfd_coff_backend_data. | |
35 | ||
36 | Some of these functions are also called by the ECOFF routines. | |
37 | Those functions may not use any COFF specific information, such as | |
38 | coff_data (abfd). */ | |
39 | ||
40 | #include "bfd.h" | |
41 | #include "sysdep.h" | |
42 | #include "libbfd.h" | |
43 | #include "coff/internal.h" | |
44 | #include "libcoff.h" | |
45 | ||
46 | static void coff_fix_symbol_name | |
47 | PARAMS ((bfd *, asymbol *, combined_entry_type *, bfd_size_type *, | |
48 | asection **, bfd_size_type *)); | |
b34976b6 | 49 | static bfd_boolean coff_write_symbol |
beb1bf64 | 50 | PARAMS ((bfd *, asymbol *, combined_entry_type *, bfd_vma *, |
252b5132 | 51 | bfd_size_type *, asection **, bfd_size_type *)); |
b34976b6 | 52 | static bfd_boolean coff_write_alien_symbol |
beb1bf64 | 53 | PARAMS ((bfd *, asymbol *, bfd_vma *, bfd_size_type *, |
252b5132 | 54 | asection **, bfd_size_type *)); |
b34976b6 | 55 | static bfd_boolean coff_write_native_symbol |
beb1bf64 | 56 | PARAMS ((bfd *, coff_symbol_type *, bfd_vma *, bfd_size_type *, |
252b5132 RH |
57 | asection **, bfd_size_type *)); |
58 | static void coff_pointerize_aux | |
59 | PARAMS ((bfd *, combined_entry_type *, combined_entry_type *, | |
60 | unsigned int, combined_entry_type *)); | |
b34976b6 | 61 | static bfd_boolean make_a_section_from_file |
252b5132 RH |
62 | PARAMS ((bfd *, struct internal_scnhdr *, unsigned int)); |
63 | static const bfd_target *coff_real_object_p | |
244148ad | 64 | PARAMS ((bfd *, unsigned, struct internal_filehdr *, |
252b5132 RH |
65 | struct internal_aouthdr *)); |
66 | static void fixup_symbol_value | |
67 | PARAMS ((bfd *, coff_symbol_type *, struct internal_syment *)); | |
68 | static char *build_debug_section | |
69 | PARAMS ((bfd *)); | |
70 | static char *copy_name | |
dc810e39 | 71 | PARAMS ((bfd *, char *, size_t)); |
252b5132 RH |
72 | |
73 | #define STRING_SIZE_SIZE (4) | |
74 | ||
75 | /* Take a section header read from a coff file (in HOST byte order), | |
76 | and make a BFD "section" out of it. This is used by ECOFF. */ | |
b34976b6 | 77 | static bfd_boolean |
252b5132 RH |
78 | make_a_section_from_file (abfd, hdr, target_index) |
79 | bfd *abfd; | |
80 | struct internal_scnhdr *hdr; | |
81 | unsigned int target_index; | |
82 | { | |
83 | asection *return_section; | |
84 | char *name; | |
b34976b6 | 85 | bfd_boolean result = TRUE; |
7c8ca0e4 | 86 | flagword flags; |
252b5132 RH |
87 | |
88 | name = NULL; | |
89 | ||
90 | /* Handle long section names as in PE. */ | |
91 | if (bfd_coff_long_section_names (abfd) | |
92 | && hdr->s_name[0] == '/') | |
93 | { | |
94 | char buf[SCNNMLEN]; | |
95 | long strindex; | |
96 | char *p; | |
97 | const char *strings; | |
98 | ||
99 | memcpy (buf, hdr->s_name + 1, SCNNMLEN - 1); | |
100 | buf[SCNNMLEN - 1] = '\0'; | |
101 | strindex = strtol (buf, &p, 10); | |
102 | if (*p == '\0' && strindex >= 0) | |
103 | { | |
104 | strings = _bfd_coff_read_string_table (abfd); | |
105 | if (strings == NULL) | |
b34976b6 | 106 | return FALSE; |
252b5132 RH |
107 | /* FIXME: For extra safety, we should make sure that |
108 | strindex does not run us past the end, but right now we | |
109 | don't know the length of the string table. */ | |
110 | strings += strindex; | |
dc810e39 | 111 | name = bfd_alloc (abfd, (bfd_size_type) strlen (strings) + 1); |
252b5132 | 112 | if (name == NULL) |
b34976b6 | 113 | return FALSE; |
252b5132 RH |
114 | strcpy (name, strings); |
115 | } | |
116 | } | |
117 | ||
118 | if (name == NULL) | |
119 | { | |
120 | /* Assorted wastage to null-terminate the name, thanks AT&T! */ | |
dc810e39 | 121 | name = bfd_alloc (abfd, (bfd_size_type) sizeof (hdr->s_name) + 1); |
252b5132 | 122 | if (name == NULL) |
b34976b6 | 123 | return FALSE; |
252b5132 RH |
124 | strncpy (name, (char *) &hdr->s_name[0], sizeof (hdr->s_name)); |
125 | name[sizeof (hdr->s_name)] = 0; | |
126 | } | |
127 | ||
128 | return_section = bfd_make_section_anyway (abfd, name); | |
129 | if (return_section == NULL) | |
b34976b6 | 130 | return FALSE; |
252b5132 RH |
131 | |
132 | return_section->vma = hdr->s_vaddr; | |
133 | return_section->lma = hdr->s_paddr; | |
134 | return_section->_raw_size = hdr->s_size; | |
135 | return_section->filepos = hdr->s_scnptr; | |
136 | return_section->rel_filepos = hdr->s_relptr; | |
137 | return_section->reloc_count = hdr->s_nreloc; | |
138 | ||
139 | bfd_coff_set_alignment_hook (abfd, return_section, hdr); | |
140 | ||
141 | return_section->line_filepos = hdr->s_lnnoptr; | |
142 | ||
143 | return_section->lineno_count = hdr->s_nlnno; | |
144 | return_section->userdata = NULL; | |
145 | return_section->next = (asection *) NULL; | |
252b5132 | 146 | return_section->target_index = target_index; |
7c8ca0e4 NC |
147 | |
148 | if (! bfd_coff_styp_to_sec_flags_hook (abfd, hdr, name, return_section, | |
149 | & flags)) | |
b34976b6 | 150 | result = FALSE; |
dc810e39 | 151 | |
7c8ca0e4 | 152 | return_section->flags = flags; |
252b5132 RH |
153 | |
154 | /* At least on i386-coff, the line number count for a shared library | |
155 | section must be ignored. */ | |
156 | if ((return_section->flags & SEC_COFF_SHARED_LIBRARY) != 0) | |
157 | return_section->lineno_count = 0; | |
158 | ||
159 | if (hdr->s_nreloc != 0) | |
160 | return_section->flags |= SEC_RELOC; | |
161 | /* FIXME: should this check 'hdr->s_size > 0' */ | |
162 | if (hdr->s_scnptr != 0) | |
163 | return_section->flags |= SEC_HAS_CONTENTS; | |
7c8ca0e4 NC |
164 | |
165 | return result; | |
252b5132 RH |
166 | } |
167 | ||
168 | /* Read in a COFF object and make it into a BFD. This is used by | |
169 | ECOFF as well. */ | |
170 | ||
171 | static const bfd_target * | |
172 | coff_real_object_p (abfd, nscns, internal_f, internal_a) | |
173 | bfd *abfd; | |
174 | unsigned nscns; | |
175 | struct internal_filehdr *internal_f; | |
176 | struct internal_aouthdr *internal_a; | |
177 | { | |
178 | flagword oflags = abfd->flags; | |
179 | bfd_vma ostart = bfd_get_start_address (abfd); | |
180 | PTR tdata; | |
487e54f2 | 181 | PTR tdata_save; |
dc810e39 | 182 | bfd_size_type readsize; /* length of file_info */ |
252b5132 RH |
183 | unsigned int scnhsz; |
184 | char *external_sections; | |
185 | ||
186 | if (!(internal_f->f_flags & F_RELFLG)) | |
187 | abfd->flags |= HAS_RELOC; | |
188 | if ((internal_f->f_flags & F_EXEC)) | |
189 | abfd->flags |= EXEC_P; | |
190 | if (!(internal_f->f_flags & F_LNNO)) | |
191 | abfd->flags |= HAS_LINENO; | |
192 | if (!(internal_f->f_flags & F_LSYMS)) | |
193 | abfd->flags |= HAS_LOCALS; | |
194 | ||
195 | /* FIXME: How can we set D_PAGED correctly? */ | |
196 | if ((internal_f->f_flags & F_EXEC) != 0) | |
197 | abfd->flags |= D_PAGED; | |
198 | ||
199 | bfd_get_symcount (abfd) = internal_f->f_nsyms; | |
200 | if (internal_f->f_nsyms) | |
201 | abfd->flags |= HAS_SYMS; | |
202 | ||
203 | if (internal_a != (struct internal_aouthdr *) NULL) | |
204 | bfd_get_start_address (abfd) = internal_a->entry; | |
205 | else | |
206 | bfd_get_start_address (abfd) = 0; | |
207 | ||
208 | /* Set up the tdata area. ECOFF uses its own routine, and overrides | |
209 | abfd->flags. */ | |
487e54f2 | 210 | tdata_save = abfd->tdata.any; |
252b5132 RH |
211 | tdata = bfd_coff_mkobject_hook (abfd, (PTR) internal_f, (PTR) internal_a); |
212 | if (tdata == NULL) | |
487e54f2 | 213 | goto fail2; |
252b5132 RH |
214 | |
215 | scnhsz = bfd_coff_scnhsz (abfd); | |
dc810e39 | 216 | readsize = (bfd_size_type) nscns * scnhsz; |
252b5132 RH |
217 | external_sections = (char *) bfd_alloc (abfd, readsize); |
218 | if (!external_sections) | |
219 | goto fail; | |
220 | ||
dc810e39 | 221 | if (bfd_bread ((PTR) external_sections, readsize, abfd) != readsize) |
252b5132 RH |
222 | goto fail; |
223 | ||
363d7b14 | 224 | /* Set the arch/mach *before* swapping in sections; section header swapping |
244148ad | 225 | may depend on arch/mach info. */ |
82e51918 | 226 | if (! bfd_coff_set_arch_mach_hook (abfd, (PTR) internal_f)) |
363d7b14 TW |
227 | goto fail; |
228 | ||
e16bb312 | 229 | /* Now copy data as required; construct all asections etc. */ |
252b5132 RH |
230 | if (nscns != 0) |
231 | { | |
232 | unsigned int i; | |
233 | for (i = 0; i < nscns; i++) | |
234 | { | |
235 | struct internal_scnhdr tmp; | |
236 | bfd_coff_swap_scnhdr_in (abfd, | |
237 | (PTR) (external_sections + i * scnhsz), | |
238 | (PTR) & tmp); | |
239 | if (! make_a_section_from_file (abfd, &tmp, i + 1)) | |
240 | goto fail; | |
241 | } | |
242 | } | |
243 | ||
e16bb312 | 244 | bfd_coff_set_arch_mach_hook (abfd, (PTR) internal_f); |
252b5132 RH |
245 | /* make_abs_section (abfd); */ |
246 | ||
252b5132 RH |
247 | return abfd->xvec; |
248 | ||
249 | fail: | |
250 | bfd_release (abfd, tdata); | |
487e54f2 AM |
251 | fail2: |
252 | abfd->tdata.any = tdata_save; | |
252b5132 RH |
253 | abfd->flags = oflags; |
254 | bfd_get_start_address (abfd) = ostart; | |
255 | return (const bfd_target *) NULL; | |
256 | } | |
257 | ||
258 | /* Turn a COFF file into a BFD, but fail with bfd_error_wrong_format if it is | |
259 | not a COFF file. This is also used by ECOFF. */ | |
260 | ||
261 | const bfd_target * | |
262 | coff_object_p (abfd) | |
263 | bfd *abfd; | |
264 | { | |
dc810e39 AM |
265 | bfd_size_type filhsz; |
266 | bfd_size_type aoutsz; | |
267 | unsigned int nscns; | |
252b5132 RH |
268 | PTR filehdr; |
269 | struct internal_filehdr internal_f; | |
270 | struct internal_aouthdr internal_a; | |
271 | ||
272 | /* figure out how much to read */ | |
273 | filhsz = bfd_coff_filhsz (abfd); | |
274 | aoutsz = bfd_coff_aoutsz (abfd); | |
275 | ||
276 | filehdr = bfd_alloc (abfd, filhsz); | |
277 | if (filehdr == NULL) | |
487e54f2 | 278 | return NULL; |
dc810e39 | 279 | if (bfd_bread (filehdr, filhsz, abfd) != filhsz) |
252b5132 RH |
280 | { |
281 | if (bfd_get_error () != bfd_error_system_call) | |
282 | bfd_set_error (bfd_error_wrong_format); | |
487e54f2 AM |
283 | bfd_release (abfd, filehdr); |
284 | return NULL; | |
252b5132 RH |
285 | } |
286 | bfd_coff_swap_filehdr_in (abfd, filehdr, &internal_f); | |
287 | bfd_release (abfd, filehdr); | |
288 | ||
b8819ab2 NC |
289 | /* The XCOFF format has two sizes for the f_opthdr. SMALL_AOUTSZ |
290 | (less than aoutsz) used in object files and AOUTSZ (equal to | |
291 | aoutsz) in executables. The bfd_coff_swap_aouthdr_in function | |
292 | expects this header to be aoutsz bytes in length, so we use that | |
293 | value in the call to bfd_alloc below. But we must be careful to | |
294 | only read in f_opthdr bytes in the call to bfd_bread. We should | |
295 | also attempt to catch corrupt or non-COFF binaries with a strange | |
296 | value for f_opthdr. */ | |
82e51918 | 297 | if (! bfd_coff_bad_format_hook (abfd, &internal_f) |
95f7d9f7 | 298 | || internal_f.f_opthdr > aoutsz) |
252b5132 RH |
299 | { |
300 | bfd_set_error (bfd_error_wrong_format); | |
487e54f2 | 301 | return NULL; |
252b5132 RH |
302 | } |
303 | nscns = internal_f.f_nscns; | |
304 | ||
305 | if (internal_f.f_opthdr) | |
306 | { | |
307 | PTR opthdr; | |
308 | ||
309 | opthdr = bfd_alloc (abfd, aoutsz); | |
310 | if (opthdr == NULL) | |
487e54f2 | 311 | return NULL; |
dc810e39 | 312 | if (bfd_bread (opthdr, (bfd_size_type) internal_f.f_opthdr, abfd) |
252b5132 RH |
313 | != internal_f.f_opthdr) |
314 | { | |
487e54f2 AM |
315 | bfd_release (abfd, opthdr); |
316 | return NULL; | |
252b5132 RH |
317 | } |
318 | bfd_coff_swap_aouthdr_in (abfd, opthdr, (PTR) &internal_a); | |
487e54f2 | 319 | bfd_release (abfd, opthdr); |
252b5132 RH |
320 | } |
321 | ||
322 | return coff_real_object_p (abfd, nscns, &internal_f, | |
323 | (internal_f.f_opthdr != 0 | |
324 | ? &internal_a | |
325 | : (struct internal_aouthdr *) NULL)); | |
326 | } | |
327 | ||
328 | /* Get the BFD section from a COFF symbol section number. */ | |
329 | ||
330 | asection * | |
331 | coff_section_from_bfd_index (abfd, index) | |
332 | bfd *abfd; | |
333 | int index; | |
334 | { | |
335 | struct sec *answer = abfd->sections; | |
336 | ||
337 | if (index == N_ABS) | |
338 | return bfd_abs_section_ptr; | |
339 | if (index == N_UNDEF) | |
340 | return bfd_und_section_ptr; | |
341 | if (index == N_DEBUG) | |
342 | return bfd_abs_section_ptr; | |
343 | ||
344 | while (answer) | |
345 | { | |
346 | if (answer->target_index == index) | |
347 | return answer; | |
348 | answer = answer->next; | |
349 | } | |
350 | ||
351 | /* We should not reach this point, but the SCO 3.2v4 /lib/libc_s.a | |
352 | has a bad symbol table in biglitpow.o. */ | |
353 | return bfd_und_section_ptr; | |
354 | } | |
355 | ||
356 | /* Get the upper bound of a COFF symbol table. */ | |
357 | ||
358 | long | |
359 | coff_get_symtab_upper_bound (abfd) | |
360 | bfd *abfd; | |
361 | { | |
362 | if (!bfd_coff_slurp_symbol_table (abfd)) | |
363 | return -1; | |
364 | ||
365 | return (bfd_get_symcount (abfd) + 1) * (sizeof (coff_symbol_type *)); | |
366 | } | |
367 | ||
252b5132 RH |
368 | /* Canonicalize a COFF symbol table. */ |
369 | ||
370 | long | |
371 | coff_get_symtab (abfd, alocation) | |
372 | bfd *abfd; | |
373 | asymbol **alocation; | |
374 | { | |
375 | unsigned int counter; | |
376 | coff_symbol_type *symbase; | |
377 | coff_symbol_type **location = (coff_symbol_type **) alocation; | |
378 | ||
379 | if (!bfd_coff_slurp_symbol_table (abfd)) | |
380 | return -1; | |
381 | ||
382 | symbase = obj_symbols (abfd); | |
383 | counter = bfd_get_symcount (abfd); | |
384 | while (counter-- > 0) | |
385 | *location++ = symbase++; | |
386 | ||
387 | *location = NULL; | |
388 | ||
389 | return bfd_get_symcount (abfd); | |
390 | } | |
391 | ||
392 | /* Get the name of a symbol. The caller must pass in a buffer of size | |
393 | >= SYMNMLEN + 1. */ | |
394 | ||
395 | const char * | |
396 | _bfd_coff_internal_syment_name (abfd, sym, buf) | |
397 | bfd *abfd; | |
398 | const struct internal_syment *sym; | |
399 | char *buf; | |
400 | { | |
401 | /* FIXME: It's not clear this will work correctly if sizeof | |
402 | (_n_zeroes) != 4. */ | |
403 | if (sym->_n._n_n._n_zeroes != 0 | |
404 | || sym->_n._n_n._n_offset == 0) | |
405 | { | |
406 | memcpy (buf, sym->_n._n_name, SYMNMLEN); | |
407 | buf[SYMNMLEN] = '\0'; | |
408 | return buf; | |
409 | } | |
410 | else | |
411 | { | |
412 | const char *strings; | |
413 | ||
414 | BFD_ASSERT (sym->_n._n_n._n_offset >= STRING_SIZE_SIZE); | |
415 | strings = obj_coff_strings (abfd); | |
416 | if (strings == NULL) | |
417 | { | |
418 | strings = _bfd_coff_read_string_table (abfd); | |
419 | if (strings == NULL) | |
420 | return NULL; | |
421 | } | |
422 | return strings + sym->_n._n_n._n_offset; | |
423 | } | |
424 | } | |
425 | ||
426 | /* Read in and swap the relocs. This returns a buffer holding the | |
b34976b6 | 427 | relocs for section SEC in file ABFD. If CACHE is TRUE and |
252b5132 RH |
428 | INTERNAL_RELOCS is NULL, the relocs read in will be saved in case |
429 | the function is called again. If EXTERNAL_RELOCS is not NULL, it | |
430 | is a buffer large enough to hold the unswapped relocs. If | |
431 | INTERNAL_RELOCS is not NULL, it is a buffer large enough to hold | |
b34976b6 | 432 | the swapped relocs. If REQUIRE_INTERNAL is TRUE, then the return |
252b5132 RH |
433 | value must be INTERNAL_RELOCS. The function returns NULL on error. */ |
434 | ||
435 | struct internal_reloc * | |
436 | _bfd_coff_read_internal_relocs (abfd, sec, cache, external_relocs, | |
437 | require_internal, internal_relocs) | |
438 | bfd *abfd; | |
439 | asection *sec; | |
b34976b6 | 440 | bfd_boolean cache; |
252b5132 | 441 | bfd_byte *external_relocs; |
b34976b6 | 442 | bfd_boolean require_internal; |
252b5132 RH |
443 | struct internal_reloc *internal_relocs; |
444 | { | |
445 | bfd_size_type relsz; | |
446 | bfd_byte *free_external = NULL; | |
447 | struct internal_reloc *free_internal = NULL; | |
448 | bfd_byte *erel; | |
449 | bfd_byte *erel_end; | |
450 | struct internal_reloc *irel; | |
dc810e39 | 451 | bfd_size_type amt; |
252b5132 RH |
452 | |
453 | if (coff_section_data (abfd, sec) != NULL | |
454 | && coff_section_data (abfd, sec)->relocs != NULL) | |
455 | { | |
456 | if (! require_internal) | |
457 | return coff_section_data (abfd, sec)->relocs; | |
458 | memcpy (internal_relocs, coff_section_data (abfd, sec)->relocs, | |
459 | sec->reloc_count * sizeof (struct internal_reloc)); | |
460 | return internal_relocs; | |
461 | } | |
462 | ||
463 | relsz = bfd_coff_relsz (abfd); | |
464 | ||
dc810e39 | 465 | amt = sec->reloc_count * relsz; |
252b5132 RH |
466 | if (external_relocs == NULL) |
467 | { | |
dc810e39 | 468 | free_external = (bfd_byte *) bfd_malloc (amt); |
252b5132 RH |
469 | if (free_external == NULL && sec->reloc_count > 0) |
470 | goto error_return; | |
471 | external_relocs = free_external; | |
472 | } | |
473 | ||
474 | if (bfd_seek (abfd, sec->rel_filepos, SEEK_SET) != 0 | |
dc810e39 | 475 | || bfd_bread (external_relocs, amt, abfd) != amt) |
252b5132 RH |
476 | goto error_return; |
477 | ||
478 | if (internal_relocs == NULL) | |
479 | { | |
dc810e39 AM |
480 | amt = sec->reloc_count; |
481 | amt *= sizeof (struct internal_reloc); | |
482 | free_internal = (struct internal_reloc *) bfd_malloc (amt); | |
252b5132 RH |
483 | if (free_internal == NULL && sec->reloc_count > 0) |
484 | goto error_return; | |
485 | internal_relocs = free_internal; | |
486 | } | |
487 | ||
488 | /* Swap in the relocs. */ | |
489 | erel = external_relocs; | |
490 | erel_end = erel + relsz * sec->reloc_count; | |
491 | irel = internal_relocs; | |
492 | for (; erel < erel_end; erel += relsz, irel++) | |
493 | bfd_coff_swap_reloc_in (abfd, (PTR) erel, (PTR) irel); | |
494 | ||
495 | if (free_external != NULL) | |
496 | { | |
497 | free (free_external); | |
498 | free_external = NULL; | |
499 | } | |
500 | ||
501 | if (cache && free_internal != NULL) | |
502 | { | |
503 | if (coff_section_data (abfd, sec) == NULL) | |
504 | { | |
dc810e39 AM |
505 | amt = sizeof (struct coff_section_tdata); |
506 | sec->used_by_bfd = (PTR) bfd_zalloc (abfd, amt); | |
252b5132 RH |
507 | if (sec->used_by_bfd == NULL) |
508 | goto error_return; | |
509 | coff_section_data (abfd, sec)->contents = NULL; | |
510 | } | |
511 | coff_section_data (abfd, sec)->relocs = free_internal; | |
512 | } | |
513 | ||
514 | return internal_relocs; | |
515 | ||
516 | error_return: | |
517 | if (free_external != NULL) | |
518 | free (free_external); | |
519 | if (free_internal != NULL) | |
520 | free (free_internal); | |
521 | return NULL; | |
522 | } | |
523 | ||
524 | /* Set lineno_count for the output sections of a COFF file. */ | |
525 | ||
526 | int | |
527 | coff_count_linenumbers (abfd) | |
528 | bfd *abfd; | |
529 | { | |
530 | unsigned int limit = bfd_get_symcount (abfd); | |
531 | unsigned int i; | |
532 | int total = 0; | |
533 | asymbol **p; | |
534 | asection *s; | |
535 | ||
536 | if (limit == 0) | |
537 | { | |
538 | /* This may be from the backend linker, in which case the | |
539 | lineno_count in the sections is correct. */ | |
540 | for (s = abfd->sections; s != NULL; s = s->next) | |
541 | total += s->lineno_count; | |
542 | return total; | |
543 | } | |
544 | ||
545 | for (s = abfd->sections; s != NULL; s = s->next) | |
546 | BFD_ASSERT (s->lineno_count == 0); | |
547 | ||
548 | for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) | |
549 | { | |
550 | asymbol *q_maybe = *p; | |
551 | ||
9bd09e22 | 552 | if (bfd_family_coff (bfd_asymbol_bfd (q_maybe))) |
252b5132 RH |
553 | { |
554 | coff_symbol_type *q = coffsymbol (q_maybe); | |
555 | ||
556 | /* The AIX 4.1 compiler can sometimes generate line numbers | |
557 | attached to debugging symbols. We try to simply ignore | |
558 | those here. */ | |
559 | if (q->lineno != NULL | |
560 | && q->symbol.section->owner != NULL) | |
561 | { | |
562 | /* This symbol has line numbers. Increment the owning | |
563 | section's linenumber count. */ | |
564 | alent *l = q->lineno; | |
565 | ||
84c254c6 | 566 | do |
252b5132 | 567 | { |
84c254c6 | 568 | asection * sec = q->symbol.section->output_section; |
b34976b6 | 569 | |
84c254c6 NC |
570 | /* Do not try to update fields in read-only sections. */ |
571 | if (! bfd_is_const_section (sec)) | |
572 | sec->lineno_count ++; | |
573 | ||
252b5132 | 574 | ++total; |
252b5132 RH |
575 | ++l; |
576 | } | |
84c254c6 | 577 | while (l->line_number != 0); |
252b5132 RH |
578 | } |
579 | } | |
580 | } | |
581 | ||
582 | return total; | |
583 | } | |
584 | ||
585 | /* Takes a bfd and a symbol, returns a pointer to the coff specific | |
586 | area of the symbol if there is one. */ | |
587 | ||
252b5132 RH |
588 | coff_symbol_type * |
589 | coff_symbol_from (ignore_abfd, symbol) | |
7442e600 | 590 | bfd *ignore_abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
591 | asymbol *symbol; |
592 | { | |
9bd09e22 | 593 | if (!bfd_family_coff (bfd_asymbol_bfd (symbol))) |
252b5132 RH |
594 | return (coff_symbol_type *) NULL; |
595 | ||
596 | if (bfd_asymbol_bfd (symbol)->tdata.coff_obj_data == (coff_data_type *) NULL) | |
597 | return (coff_symbol_type *) NULL; | |
598 | ||
599 | return (coff_symbol_type *) symbol; | |
600 | } | |
601 | ||
602 | static void | |
603 | fixup_symbol_value (abfd, coff_symbol_ptr, syment) | |
604 | bfd *abfd; | |
605 | coff_symbol_type *coff_symbol_ptr; | |
606 | struct internal_syment *syment; | |
607 | { | |
608 | ||
609 | /* Normalize the symbol flags */ | |
610 | if (bfd_is_com_section (coff_symbol_ptr->symbol.section)) | |
611 | { | |
612 | /* a common symbol is undefined with a value */ | |
613 | syment->n_scnum = N_UNDEF; | |
614 | syment->n_value = coff_symbol_ptr->symbol.value; | |
615 | } | |
703153b5 ILT |
616 | else if ((coff_symbol_ptr->symbol.flags & BSF_DEBUGGING) != 0 |
617 | && (coff_symbol_ptr->symbol.flags & BSF_DEBUGGING_RELOC) == 0) | |
252b5132 RH |
618 | { |
619 | syment->n_value = coff_symbol_ptr->symbol.value; | |
620 | } | |
621 | else if (bfd_is_und_section (coff_symbol_ptr->symbol.section)) | |
622 | { | |
623 | syment->n_scnum = N_UNDEF; | |
624 | syment->n_value = 0; | |
625 | } | |
7bb9db4d | 626 | /* FIXME: Do we need to handle the absolute section here? */ |
252b5132 RH |
627 | else |
628 | { | |
629 | if (coff_symbol_ptr->symbol.section) | |
630 | { | |
631 | syment->n_scnum = | |
632 | coff_symbol_ptr->symbol.section->output_section->target_index; | |
633 | ||
634 | syment->n_value = (coff_symbol_ptr->symbol.value | |
635 | + coff_symbol_ptr->symbol.section->output_offset); | |
636 | if (! obj_pe (abfd)) | |
34cbe64e TW |
637 | { |
638 | syment->n_value += (syment->n_sclass == C_STATLAB) | |
639 | ? coff_symbol_ptr->symbol.section->output_section->lma | |
640 | : coff_symbol_ptr->symbol.section->output_section->vma; | |
641 | } | |
252b5132 RH |
642 | } |
643 | else | |
644 | { | |
645 | BFD_ASSERT (0); | |
646 | /* This can happen, but I don't know why yet (steve@cygnus.com) */ | |
647 | syment->n_scnum = N_ABS; | |
648 | syment->n_value = coff_symbol_ptr->symbol.value; | |
649 | } | |
650 | } | |
651 | } | |
652 | ||
653 | /* Run through all the symbols in the symbol table and work out what | |
654 | their indexes into the symbol table will be when output. | |
655 | ||
656 | Coff requires that each C_FILE symbol points to the next one in the | |
657 | chain, and that the last one points to the first external symbol. We | |
658 | do that here too. */ | |
659 | ||
b34976b6 | 660 | bfd_boolean |
252b5132 RH |
661 | coff_renumber_symbols (bfd_ptr, first_undef) |
662 | bfd *bfd_ptr; | |
663 | int *first_undef; | |
664 | { | |
665 | unsigned int symbol_count = bfd_get_symcount (bfd_ptr); | |
666 | asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols; | |
667 | unsigned int native_index = 0; | |
668 | struct internal_syment *last_file = (struct internal_syment *) NULL; | |
669 | unsigned int symbol_index; | |
670 | ||
671 | /* COFF demands that undefined symbols come after all other symbols. | |
672 | Since we don't need to impose this extra knowledge on all our | |
673 | client programs, deal with that here. Sort the symbol table; | |
674 | just move the undefined symbols to the end, leaving the rest | |
675 | alone. The O'Reilly book says that defined global symbols come | |
676 | at the end before the undefined symbols, so we do that here as | |
677 | well. */ | |
678 | /* @@ Do we have some condition we could test for, so we don't always | |
679 | have to do this? I don't think relocatability is quite right, but | |
680 | I'm not certain. [raeburn:19920508.1711EST] */ | |
681 | { | |
682 | asymbol **newsyms; | |
683 | unsigned int i; | |
dc810e39 | 684 | bfd_size_type amt; |
252b5132 | 685 | |
dc810e39 AM |
686 | amt = sizeof (asymbol *) * ((bfd_size_type) symbol_count + 1); |
687 | newsyms = (asymbol **) bfd_alloc (bfd_ptr, amt); | |
252b5132 | 688 | if (!newsyms) |
b34976b6 | 689 | return FALSE; |
252b5132 RH |
690 | bfd_ptr->outsymbols = newsyms; |
691 | for (i = 0; i < symbol_count; i++) | |
692 | if ((symbol_ptr_ptr[i]->flags & BSF_NOT_AT_END) != 0 | |
693 | || (!bfd_is_und_section (symbol_ptr_ptr[i]->section) | |
694 | && !bfd_is_com_section (symbol_ptr_ptr[i]->section) | |
695 | && ((symbol_ptr_ptr[i]->flags & BSF_FUNCTION) != 0 | |
696 | || ((symbol_ptr_ptr[i]->flags & (BSF_GLOBAL | BSF_WEAK)) | |
697 | == 0)))) | |
698 | *newsyms++ = symbol_ptr_ptr[i]; | |
699 | ||
700 | for (i = 0; i < symbol_count; i++) | |
701 | if ((symbol_ptr_ptr[i]->flags & BSF_NOT_AT_END) == 0 | |
702 | && !bfd_is_und_section (symbol_ptr_ptr[i]->section) | |
703 | && (bfd_is_com_section (symbol_ptr_ptr[i]->section) | |
704 | || ((symbol_ptr_ptr[i]->flags & BSF_FUNCTION) == 0 | |
705 | && ((symbol_ptr_ptr[i]->flags & (BSF_GLOBAL | BSF_WEAK)) | |
706 | != 0)))) | |
707 | *newsyms++ = symbol_ptr_ptr[i]; | |
708 | ||
709 | *first_undef = newsyms - bfd_ptr->outsymbols; | |
710 | ||
711 | for (i = 0; i < symbol_count; i++) | |
712 | if ((symbol_ptr_ptr[i]->flags & BSF_NOT_AT_END) == 0 | |
713 | && bfd_is_und_section (symbol_ptr_ptr[i]->section)) | |
714 | *newsyms++ = symbol_ptr_ptr[i]; | |
715 | *newsyms = (asymbol *) NULL; | |
716 | symbol_ptr_ptr = bfd_ptr->outsymbols; | |
717 | } | |
718 | ||
719 | for (symbol_index = 0; symbol_index < symbol_count; symbol_index++) | |
720 | { | |
721 | coff_symbol_type *coff_symbol_ptr = coff_symbol_from (bfd_ptr, symbol_ptr_ptr[symbol_index]); | |
244148ad | 722 | symbol_ptr_ptr[symbol_index]->udata.i = symbol_index; |
252b5132 RH |
723 | if (coff_symbol_ptr && coff_symbol_ptr->native) |
724 | { | |
725 | combined_entry_type *s = coff_symbol_ptr->native; | |
726 | int i; | |
727 | ||
728 | if (s->u.syment.n_sclass == C_FILE) | |
729 | { | |
730 | if (last_file != (struct internal_syment *) NULL) | |
731 | last_file->n_value = native_index; | |
732 | last_file = &(s->u.syment); | |
733 | } | |
734 | else | |
735 | { | |
736 | ||
737 | /* Modify the symbol values according to their section and | |
738 | type */ | |
739 | ||
740 | fixup_symbol_value (bfd_ptr, coff_symbol_ptr, &(s->u.syment)); | |
741 | } | |
742 | for (i = 0; i < s->u.syment.n_numaux + 1; i++) | |
743 | s[i].offset = native_index++; | |
744 | } | |
745 | else | |
746 | { | |
747 | native_index++; | |
748 | } | |
749 | } | |
750 | obj_conv_table_size (bfd_ptr) = native_index; | |
751 | ||
b34976b6 | 752 | return TRUE; |
252b5132 RH |
753 | } |
754 | ||
755 | /* Run thorough the symbol table again, and fix it so that all | |
756 | pointers to entries are changed to the entries' index in the output | |
757 | symbol table. */ | |
758 | ||
759 | void | |
760 | coff_mangle_symbols (bfd_ptr) | |
761 | bfd *bfd_ptr; | |
762 | { | |
763 | unsigned int symbol_count = bfd_get_symcount (bfd_ptr); | |
764 | asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols; | |
765 | unsigned int symbol_index; | |
766 | ||
767 | for (symbol_index = 0; symbol_index < symbol_count; symbol_index++) | |
768 | { | |
769 | coff_symbol_type *coff_symbol_ptr = | |
770 | coff_symbol_from (bfd_ptr, symbol_ptr_ptr[symbol_index]); | |
771 | ||
772 | if (coff_symbol_ptr && coff_symbol_ptr->native) | |
773 | { | |
774 | int i; | |
775 | combined_entry_type *s = coff_symbol_ptr->native; | |
776 | ||
777 | if (s->fix_value) | |
778 | { | |
779 | /* FIXME: We should use a union here. */ | |
dc810e39 AM |
780 | s->u.syment.n_value = |
781 | (bfd_vma)((combined_entry_type *) | |
beb1bf64 | 782 | ((unsigned long) s->u.syment.n_value))->offset; |
252b5132 RH |
783 | s->fix_value = 0; |
784 | } | |
785 | if (s->fix_line) | |
786 | { | |
787 | /* The value is the offset into the line number entries | |
788 | for the symbol's section. On output, the symbol's | |
789 | section should be N_DEBUG. */ | |
790 | s->u.syment.n_value = | |
791 | (coff_symbol_ptr->symbol.section->output_section->line_filepos | |
792 | + s->u.syment.n_value * bfd_coff_linesz (bfd_ptr)); | |
793 | coff_symbol_ptr->symbol.section = | |
794 | coff_section_from_bfd_index (bfd_ptr, N_DEBUG); | |
795 | BFD_ASSERT (coff_symbol_ptr->symbol.flags & BSF_DEBUGGING); | |
796 | } | |
797 | for (i = 0; i < s->u.syment.n_numaux; i++) | |
798 | { | |
799 | combined_entry_type *a = s + i + 1; | |
800 | if (a->fix_tag) | |
801 | { | |
802 | a->u.auxent.x_sym.x_tagndx.l = | |
803 | a->u.auxent.x_sym.x_tagndx.p->offset; | |
804 | a->fix_tag = 0; | |
805 | } | |
806 | if (a->fix_end) | |
807 | { | |
808 | a->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l = | |
809 | a->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p->offset; | |
810 | a->fix_end = 0; | |
811 | } | |
812 | if (a->fix_scnlen) | |
813 | { | |
814 | a->u.auxent.x_csect.x_scnlen.l = | |
815 | a->u.auxent.x_csect.x_scnlen.p->offset; | |
816 | a->fix_scnlen = 0; | |
817 | } | |
818 | } | |
819 | } | |
820 | } | |
821 | } | |
822 | ||
823 | static void | |
824 | coff_fix_symbol_name (abfd, symbol, native, string_size_p, | |
825 | debug_string_section_p, debug_string_size_p) | |
826 | bfd *abfd; | |
827 | asymbol *symbol; | |
828 | combined_entry_type *native; | |
829 | bfd_size_type *string_size_p; | |
830 | asection **debug_string_section_p; | |
831 | bfd_size_type *debug_string_size_p; | |
832 | { | |
833 | unsigned int name_length; | |
834 | union internal_auxent *auxent; | |
835 | char *name = (char *) (symbol->name); | |
836 | ||
837 | if (name == (char *) NULL) | |
838 | { | |
839 | /* coff symbols always have names, so we'll make one up */ | |
840 | symbol->name = "strange"; | |
841 | name = (char *) symbol->name; | |
842 | } | |
843 | name_length = strlen (name); | |
844 | ||
845 | if (native->u.syment.n_sclass == C_FILE | |
846 | && native->u.syment.n_numaux > 0) | |
847 | { | |
692b7d62 ILT |
848 | unsigned int filnmlen; |
849 | ||
7f6d05e8 CP |
850 | if (bfd_coff_force_symnames_in_strings (abfd)) |
851 | { | |
244148ad | 852 | native->u.syment._n._n_n._n_offset = |
7f6d05e8 CP |
853 | (*string_size_p + STRING_SIZE_SIZE); |
854 | native->u.syment._n._n_n._n_zeroes = 0; | |
855 | *string_size_p += 6; /* strlen(".file") + 1 */ | |
856 | } | |
857 | else | |
858 | strncpy (native->u.syment._n._n_name, ".file", SYMNMLEN); | |
859 | ||
252b5132 RH |
860 | auxent = &(native + 1)->u.auxent; |
861 | ||
692b7d62 ILT |
862 | filnmlen = bfd_coff_filnmlen (abfd); |
863 | ||
252b5132 RH |
864 | if (bfd_coff_long_filenames (abfd)) |
865 | { | |
692b7d62 | 866 | if (name_length <= filnmlen) |
252b5132 | 867 | { |
692b7d62 | 868 | strncpy (auxent->x_file.x_fname, name, filnmlen); |
252b5132 RH |
869 | } |
870 | else | |
871 | { | |
872 | auxent->x_file.x_n.x_offset = *string_size_p + STRING_SIZE_SIZE; | |
873 | auxent->x_file.x_n.x_zeroes = 0; | |
874 | *string_size_p += name_length + 1; | |
875 | } | |
876 | } | |
877 | else | |
878 | { | |
692b7d62 ILT |
879 | strncpy (auxent->x_file.x_fname, name, filnmlen); |
880 | if (name_length > filnmlen) | |
881 | name[filnmlen] = '\0'; | |
252b5132 RH |
882 | } |
883 | } | |
884 | else | |
885 | { | |
7f6d05e8 | 886 | if (name_length <= SYMNMLEN && !bfd_coff_force_symnames_in_strings (abfd)) |
252b5132 RH |
887 | { |
888 | /* This name will fit into the symbol neatly */ | |
889 | strncpy (native->u.syment._n._n_name, symbol->name, SYMNMLEN); | |
890 | } | |
891 | else if (!bfd_coff_symname_in_debug (abfd, &native->u.syment)) | |
892 | { | |
893 | native->u.syment._n._n_n._n_offset = (*string_size_p | |
894 | + STRING_SIZE_SIZE); | |
895 | native->u.syment._n._n_n._n_zeroes = 0; | |
896 | *string_size_p += name_length + 1; | |
897 | } | |
898 | else | |
899 | { | |
dc810e39 | 900 | file_ptr filepos; |
7f6d05e8 CP |
901 | bfd_byte buf[4]; |
902 | int prefix_len = bfd_coff_debug_string_prefix_length (abfd); | |
252b5132 RH |
903 | |
904 | /* This name should be written into the .debug section. For | |
905 | some reason each name is preceded by a two byte length | |
906 | and also followed by a null byte. FIXME: We assume that | |
907 | the .debug section has already been created, and that it | |
908 | is large enough. */ | |
909 | if (*debug_string_section_p == (asection *) NULL) | |
910 | *debug_string_section_p = bfd_get_section_by_name (abfd, ".debug"); | |
911 | filepos = bfd_tell (abfd); | |
7f6d05e8 | 912 | if (prefix_len == 4) |
dc810e39 | 913 | bfd_put_32 (abfd, (bfd_vma) (name_length + 1), buf); |
7f6d05e8 | 914 | else |
dc810e39 | 915 | bfd_put_16 (abfd, (bfd_vma) (name_length + 1), buf); |
7f6d05e8 | 916 | |
252b5132 RH |
917 | if (!bfd_set_section_contents (abfd, |
918 | *debug_string_section_p, | |
919 | (PTR) buf, | |
920 | (file_ptr) *debug_string_size_p, | |
7f6d05e8 | 921 | (bfd_size_type) prefix_len) |
252b5132 RH |
922 | || !bfd_set_section_contents (abfd, |
923 | *debug_string_section_p, | |
924 | (PTR) symbol->name, | |
dc810e39 AM |
925 | (file_ptr) (*debug_string_size_p |
926 | + prefix_len), | |
252b5132 RH |
927 | (bfd_size_type) name_length + 1)) |
928 | abort (); | |
929 | if (bfd_seek (abfd, filepos, SEEK_SET) != 0) | |
930 | abort (); | |
244148ad | 931 | native->u.syment._n._n_n._n_offset = |
7f6d05e8 | 932 | *debug_string_size_p + prefix_len; |
252b5132 | 933 | native->u.syment._n._n_n._n_zeroes = 0; |
7f6d05e8 | 934 | *debug_string_size_p += name_length + 1 + prefix_len; |
252b5132 RH |
935 | } |
936 | } | |
937 | } | |
938 | ||
939 | /* We need to keep track of the symbol index so that when we write out | |
940 | the relocs we can get the index for a symbol. This method is a | |
941 | hack. FIXME. */ | |
942 | ||
943 | #define set_index(symbol, idx) ((symbol)->udata.i = (idx)) | |
944 | ||
945 | /* Write a symbol out to a COFF file. */ | |
946 | ||
b34976b6 | 947 | static bfd_boolean |
252b5132 RH |
948 | coff_write_symbol (abfd, symbol, native, written, string_size_p, |
949 | debug_string_section_p, debug_string_size_p) | |
950 | bfd *abfd; | |
951 | asymbol *symbol; | |
952 | combined_entry_type *native; | |
beb1bf64 | 953 | bfd_vma *written; |
252b5132 RH |
954 | bfd_size_type *string_size_p; |
955 | asection **debug_string_section_p; | |
956 | bfd_size_type *debug_string_size_p; | |
957 | { | |
958 | unsigned int numaux = native->u.syment.n_numaux; | |
959 | int type = native->u.syment.n_type; | |
960 | int class = native->u.syment.n_sclass; | |
961 | PTR buf; | |
962 | bfd_size_type symesz; | |
963 | ||
964 | if (native->u.syment.n_sclass == C_FILE) | |
965 | symbol->flags |= BSF_DEBUGGING; | |
966 | ||
967 | if (symbol->flags & BSF_DEBUGGING | |
968 | && bfd_is_abs_section (symbol->section)) | |
969 | { | |
970 | native->u.syment.n_scnum = N_DEBUG; | |
971 | } | |
972 | else if (bfd_is_abs_section (symbol->section)) | |
973 | { | |
974 | native->u.syment.n_scnum = N_ABS; | |
975 | } | |
976 | else if (bfd_is_und_section (symbol->section)) | |
977 | { | |
978 | native->u.syment.n_scnum = N_UNDEF; | |
979 | } | |
980 | else | |
981 | { | |
982 | native->u.syment.n_scnum = | |
983 | symbol->section->output_section->target_index; | |
984 | } | |
985 | ||
986 | coff_fix_symbol_name (abfd, symbol, native, string_size_p, | |
987 | debug_string_section_p, debug_string_size_p); | |
988 | ||
989 | symesz = bfd_coff_symesz (abfd); | |
990 | buf = bfd_alloc (abfd, symesz); | |
991 | if (!buf) | |
b34976b6 | 992 | return FALSE; |
252b5132 | 993 | bfd_coff_swap_sym_out (abfd, &native->u.syment, buf); |
dc810e39 | 994 | if (bfd_bwrite (buf, symesz, abfd) != symesz) |
b34976b6 | 995 | return FALSE; |
252b5132 RH |
996 | bfd_release (abfd, buf); |
997 | ||
998 | if (native->u.syment.n_numaux > 0) | |
999 | { | |
1000 | bfd_size_type auxesz; | |
1001 | unsigned int j; | |
1002 | ||
1003 | auxesz = bfd_coff_auxesz (abfd); | |
1004 | buf = bfd_alloc (abfd, auxesz); | |
1005 | if (!buf) | |
b34976b6 | 1006 | return FALSE; |
252b5132 RH |
1007 | for (j = 0; j < native->u.syment.n_numaux; j++) |
1008 | { | |
1009 | bfd_coff_swap_aux_out (abfd, | |
1010 | &((native + j + 1)->u.auxent), | |
1011 | type, | |
1012 | class, | |
dc810e39 | 1013 | (int) j, |
252b5132 RH |
1014 | native->u.syment.n_numaux, |
1015 | buf); | |
dc810e39 | 1016 | if (bfd_bwrite (buf, auxesz, abfd) != auxesz) |
b34976b6 | 1017 | return FALSE; |
252b5132 RH |
1018 | } |
1019 | bfd_release (abfd, buf); | |
1020 | } | |
1021 | ||
1022 | /* Store the index for use when we write out the relocs. */ | |
1023 | set_index (symbol, *written); | |
1024 | ||
1025 | *written += numaux + 1; | |
b34976b6 | 1026 | return TRUE; |
252b5132 RH |
1027 | } |
1028 | ||
1029 | /* Write out a symbol to a COFF file that does not come from a COFF | |
1030 | file originally. This symbol may have been created by the linker, | |
1031 | or we may be linking a non COFF file to a COFF file. */ | |
1032 | ||
b34976b6 | 1033 | static bfd_boolean |
252b5132 RH |
1034 | coff_write_alien_symbol (abfd, symbol, written, string_size_p, |
1035 | debug_string_section_p, debug_string_size_p) | |
1036 | bfd *abfd; | |
1037 | asymbol *symbol; | |
beb1bf64 | 1038 | bfd_vma *written; |
252b5132 RH |
1039 | bfd_size_type *string_size_p; |
1040 | asection **debug_string_section_p; | |
1041 | bfd_size_type *debug_string_size_p; | |
1042 | { | |
1043 | combined_entry_type *native; | |
1044 | combined_entry_type dummy; | |
1045 | ||
1046 | native = &dummy; | |
1047 | native->u.syment.n_type = T_NULL; | |
1048 | native->u.syment.n_flags = 0; | |
1049 | if (bfd_is_und_section (symbol->section)) | |
1050 | { | |
1051 | native->u.syment.n_scnum = N_UNDEF; | |
1052 | native->u.syment.n_value = symbol->value; | |
1053 | } | |
1054 | else if (bfd_is_com_section (symbol->section)) | |
1055 | { | |
1056 | native->u.syment.n_scnum = N_UNDEF; | |
1057 | native->u.syment.n_value = symbol->value; | |
1058 | } | |
1059 | else if (symbol->flags & BSF_DEBUGGING) | |
1060 | { | |
1061 | /* There isn't much point to writing out a debugging symbol | |
1062 | unless we are prepared to convert it into COFF debugging | |
1063 | format. So, we just ignore them. We must clobber the symbol | |
1064 | name to keep it from being put in the string table. */ | |
1065 | symbol->name = ""; | |
b34976b6 | 1066 | return TRUE; |
252b5132 RH |
1067 | } |
1068 | else | |
1069 | { | |
1070 | native->u.syment.n_scnum = | |
1071 | symbol->section->output_section->target_index; | |
1072 | native->u.syment.n_value = (symbol->value | |
1073 | + symbol->section->output_offset); | |
1074 | if (! obj_pe (abfd)) | |
1075 | native->u.syment.n_value += symbol->section->output_section->vma; | |
1076 | ||
08da05b0 | 1077 | /* Copy the any flags from the file header into the symbol. |
252b5132 RH |
1078 | FIXME: Why? */ |
1079 | { | |
1080 | coff_symbol_type *c = coff_symbol_from (abfd, symbol); | |
1081 | if (c != (coff_symbol_type *) NULL) | |
1082 | native->u.syment.n_flags = bfd_asymbol_bfd (&c->symbol)->flags; | |
1083 | } | |
1084 | } | |
1085 | ||
1086 | native->u.syment.n_type = 0; | |
1087 | if (symbol->flags & BSF_LOCAL) | |
1088 | native->u.syment.n_sclass = C_STAT; | |
1089 | else if (symbol->flags & BSF_WEAK) | |
1090 | native->u.syment.n_sclass = obj_pe (abfd) ? C_NT_WEAK : C_WEAKEXT; | |
1091 | else | |
1092 | native->u.syment.n_sclass = C_EXT; | |
1093 | native->u.syment.n_numaux = 0; | |
1094 | ||
1095 | return coff_write_symbol (abfd, symbol, native, written, string_size_p, | |
1096 | debug_string_section_p, debug_string_size_p); | |
1097 | } | |
1098 | ||
1099 | /* Write a native symbol to a COFF file. */ | |
1100 | ||
b34976b6 | 1101 | static bfd_boolean |
252b5132 RH |
1102 | coff_write_native_symbol (abfd, symbol, written, string_size_p, |
1103 | debug_string_section_p, debug_string_size_p) | |
1104 | bfd *abfd; | |
1105 | coff_symbol_type *symbol; | |
beb1bf64 | 1106 | bfd_vma *written; |
252b5132 RH |
1107 | bfd_size_type *string_size_p; |
1108 | asection **debug_string_section_p; | |
1109 | bfd_size_type *debug_string_size_p; | |
1110 | { | |
1111 | combined_entry_type *native = symbol->native; | |
1112 | alent *lineno = symbol->lineno; | |
1113 | ||
1114 | /* If this symbol has an associated line number, we must store the | |
1115 | symbol index in the line number field. We also tag the auxent to | |
1116 | point to the right place in the lineno table. */ | |
1117 | if (lineno && !symbol->done_lineno && symbol->symbol.section->owner != NULL) | |
1118 | { | |
1119 | unsigned int count = 0; | |
1120 | lineno[count].u.offset = *written; | |
1121 | if (native->u.syment.n_numaux) | |
1122 | { | |
1123 | union internal_auxent *a = &((native + 1)->u.auxent); | |
1124 | ||
1125 | a->x_sym.x_fcnary.x_fcn.x_lnnoptr = | |
1126 | symbol->symbol.section->output_section->moving_line_filepos; | |
1127 | } | |
1128 | ||
1129 | /* Count and relocate all other linenumbers. */ | |
1130 | count++; | |
1131 | while (lineno[count].line_number != 0) | |
1132 | { | |
1133 | #if 0 | |
244148ad | 1134 | /* 13 april 92. sac |
252b5132 RH |
1135 | I've been told this, but still need proof: |
1136 | > The second bug is also in `bfd/coffcode.h'. This bug | |
1137 | > causes the linker to screw up the pc-relocations for | |
1138 | > all the line numbers in COFF code. This bug isn't only | |
1139 | > specific to A29K implementations, but affects all | |
1140 | > systems using COFF format binaries. Note that in COFF | |
1141 | > object files, the line number core offsets output by | |
1142 | > the assembler are relative to the start of each | |
1143 | > procedure, not to the start of the .text section. This | |
1144 | > patch relocates the line numbers relative to the | |
1145 | > `native->u.syment.n_value' instead of the section | |
1146 | > virtual address. | |
1147 | > modular!olson@cs.arizona.edu (Jon Olson) | |
1148 | */ | |
1149 | lineno[count].u.offset += native->u.syment.n_value; | |
1150 | #else | |
1151 | lineno[count].u.offset += | |
1152 | (symbol->symbol.section->output_section->vma | |
1153 | + symbol->symbol.section->output_offset); | |
1154 | #endif | |
1155 | count++; | |
1156 | } | |
b34976b6 | 1157 | symbol->done_lineno = TRUE; |
252b5132 | 1158 | |
84c254c6 NC |
1159 | if (! bfd_is_const_section (symbol->symbol.section->output_section)) |
1160 | symbol->symbol.section->output_section->moving_line_filepos += | |
1161 | count * bfd_coff_linesz (abfd); | |
252b5132 RH |
1162 | } |
1163 | ||
1164 | return coff_write_symbol (abfd, &(symbol->symbol), native, written, | |
1165 | string_size_p, debug_string_section_p, | |
1166 | debug_string_size_p); | |
1167 | } | |
1168 | ||
1169 | /* Write out the COFF symbols. */ | |
1170 | ||
b34976b6 | 1171 | bfd_boolean |
252b5132 RH |
1172 | coff_write_symbols (abfd) |
1173 | bfd *abfd; | |
1174 | { | |
1175 | bfd_size_type string_size; | |
1176 | asection *debug_string_section; | |
1177 | bfd_size_type debug_string_size; | |
1178 | unsigned int i; | |
1179 | unsigned int limit = bfd_get_symcount (abfd); | |
beb1bf64 | 1180 | bfd_signed_vma written = 0; |
252b5132 RH |
1181 | asymbol **p; |
1182 | ||
1183 | string_size = 0; | |
1184 | debug_string_section = NULL; | |
1185 | debug_string_size = 0; | |
1186 | ||
1187 | /* If this target supports long section names, they must be put into | |
1188 | the string table. This is supported by PE. This code must | |
1189 | handle section names just as they are handled in | |
1190 | coff_write_object_contents. */ | |
1191 | if (bfd_coff_long_section_names (abfd)) | |
1192 | { | |
1193 | asection *o; | |
1194 | ||
1195 | for (o = abfd->sections; o != NULL; o = o->next) | |
1196 | { | |
1197 | size_t len; | |
1198 | ||
1199 | len = strlen (o->name); | |
1200 | if (len > SCNNMLEN) | |
1201 | string_size += len + 1; | |
1202 | } | |
1203 | } | |
1204 | ||
1205 | /* Seek to the right place */ | |
1206 | if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0) | |
b34976b6 | 1207 | return FALSE; |
252b5132 RH |
1208 | |
1209 | /* Output all the symbols we have */ | |
1210 | ||
1211 | written = 0; | |
1212 | for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) | |
1213 | { | |
1214 | asymbol *symbol = *p; | |
1215 | coff_symbol_type *c_symbol = coff_symbol_from (abfd, symbol); | |
1216 | ||
1217 | if (c_symbol == (coff_symbol_type *) NULL | |
1218 | || c_symbol->native == (combined_entry_type *) NULL) | |
1219 | { | |
1220 | if (!coff_write_alien_symbol (abfd, symbol, &written, &string_size, | |
1221 | &debug_string_section, | |
1222 | &debug_string_size)) | |
b34976b6 | 1223 | return FALSE; |
252b5132 RH |
1224 | } |
1225 | else | |
1226 | { | |
1227 | if (!coff_write_native_symbol (abfd, c_symbol, &written, | |
1228 | &string_size, &debug_string_section, | |
1229 | &debug_string_size)) | |
b34976b6 | 1230 | return FALSE; |
252b5132 RH |
1231 | } |
1232 | } | |
1233 | ||
1234 | obj_raw_syment_count (abfd) = written; | |
1235 | ||
1236 | /* Now write out strings */ | |
1237 | ||
1238 | if (string_size != 0) | |
1239 | { | |
1240 | unsigned int size = string_size + STRING_SIZE_SIZE; | |
1241 | bfd_byte buffer[STRING_SIZE_SIZE]; | |
1242 | ||
1243 | #if STRING_SIZE_SIZE == 4 | |
dc810e39 | 1244 | H_PUT_32 (abfd, size, buffer); |
252b5132 | 1245 | #else |
dc810e39 | 1246 | #error Change H_PUT_32 |
252b5132 | 1247 | #endif |
dc810e39 AM |
1248 | if (bfd_bwrite ((PTR) buffer, (bfd_size_type) sizeof (buffer), abfd) |
1249 | != sizeof (buffer)) | |
b34976b6 | 1250 | return FALSE; |
252b5132 RH |
1251 | |
1252 | /* Handle long section names. This code must handle section | |
1253 | names just as they are handled in coff_write_object_contents. */ | |
1254 | if (bfd_coff_long_section_names (abfd)) | |
1255 | { | |
1256 | asection *o; | |
1257 | ||
1258 | for (o = abfd->sections; o != NULL; o = o->next) | |
1259 | { | |
1260 | size_t len; | |
1261 | ||
1262 | len = strlen (o->name); | |
1263 | if (len > SCNNMLEN) | |
1264 | { | |
dc810e39 AM |
1265 | if (bfd_bwrite (o->name, (bfd_size_type) (len + 1), abfd) |
1266 | != len + 1) | |
b34976b6 | 1267 | return FALSE; |
252b5132 RH |
1268 | } |
1269 | } | |
1270 | } | |
1271 | ||
1272 | for (p = abfd->outsymbols, i = 0; | |
1273 | i < limit; | |
1274 | i++, p++) | |
1275 | { | |
1276 | asymbol *q = *p; | |
1277 | size_t name_length = strlen (q->name); | |
1278 | coff_symbol_type *c_symbol = coff_symbol_from (abfd, q); | |
1279 | size_t maxlen; | |
1280 | ||
1281 | /* Figure out whether the symbol name should go in the string | |
1282 | table. Symbol names that are short enough are stored | |
1283 | directly in the syment structure. File names permit a | |
1284 | different, longer, length in the syment structure. On | |
1285 | XCOFF, some symbol names are stored in the .debug section | |
1286 | rather than in the string table. */ | |
1287 | ||
1288 | if (c_symbol == NULL | |
1289 | || c_symbol->native == NULL) | |
1290 | { | |
1291 | /* This is not a COFF symbol, so it certainly is not a | |
1292 | file name, nor does it go in the .debug section. */ | |
7f6d05e8 | 1293 | maxlen = bfd_coff_force_symnames_in_strings (abfd) ? 0 : SYMNMLEN; |
252b5132 RH |
1294 | } |
1295 | else if (bfd_coff_symname_in_debug (abfd, | |
1296 | &c_symbol->native->u.syment)) | |
1297 | { | |
1298 | /* This symbol name is in the XCOFF .debug section. | |
1299 | Don't write it into the string table. */ | |
1300 | maxlen = name_length; | |
1301 | } | |
1302 | else if (c_symbol->native->u.syment.n_sclass == C_FILE | |
1303 | && c_symbol->native->u.syment.n_numaux > 0) | |
7f6d05e8 | 1304 | { |
244148ad | 1305 | if (bfd_coff_force_symnames_in_strings (abfd)) |
dc810e39 AM |
1306 | { |
1307 | if (bfd_bwrite (".file", (bfd_size_type) 6, abfd) != 6) | |
b34976b6 | 1308 | return FALSE; |
dc810e39 | 1309 | } |
7f6d05e8 CP |
1310 | maxlen = bfd_coff_filnmlen (abfd); |
1311 | } | |
252b5132 | 1312 | else |
7f6d05e8 | 1313 | maxlen = bfd_coff_force_symnames_in_strings (abfd) ? 0 : SYMNMLEN; |
252b5132 RH |
1314 | |
1315 | if (name_length > maxlen) | |
1316 | { | |
dc810e39 AM |
1317 | if (bfd_bwrite ((PTR) (q->name), (bfd_size_type) name_length + 1, |
1318 | abfd) != name_length + 1) | |
b34976b6 | 1319 | return FALSE; |
252b5132 RH |
1320 | } |
1321 | } | |
1322 | } | |
1323 | else | |
1324 | { | |
1325 | /* We would normally not write anything here, but we'll write | |
1326 | out 4 so that any stupid coff reader which tries to read the | |
1327 | string table even when there isn't one won't croak. */ | |
1328 | unsigned int size = STRING_SIZE_SIZE; | |
1329 | bfd_byte buffer[STRING_SIZE_SIZE]; | |
1330 | ||
1331 | #if STRING_SIZE_SIZE == 4 | |
dc810e39 | 1332 | H_PUT_32 (abfd, size, buffer); |
252b5132 | 1333 | #else |
dc810e39 | 1334 | #error Change H_PUT_32 |
252b5132 | 1335 | #endif |
dc810e39 | 1336 | if (bfd_bwrite ((PTR) buffer, (bfd_size_type) STRING_SIZE_SIZE, abfd) |
252b5132 | 1337 | != STRING_SIZE_SIZE) |
b34976b6 | 1338 | return FALSE; |
252b5132 RH |
1339 | } |
1340 | ||
1341 | /* Make sure the .debug section was created to be the correct size. | |
1342 | We should create it ourselves on the fly, but we don't because | |
1343 | BFD won't let us write to any section until we know how large all | |
1344 | the sections are. We could still do it by making another pass | |
1345 | over the symbols. FIXME. */ | |
1346 | BFD_ASSERT (debug_string_size == 0 | |
1347 | || (debug_string_section != (asection *) NULL | |
1348 | && (BFD_ALIGN (debug_string_size, | |
1349 | 1 << debug_string_section->alignment_power) | |
1350 | == bfd_section_size (abfd, debug_string_section)))); | |
1351 | ||
b34976b6 | 1352 | return TRUE; |
252b5132 RH |
1353 | } |
1354 | ||
b34976b6 | 1355 | bfd_boolean |
252b5132 RH |
1356 | coff_write_linenumbers (abfd) |
1357 | bfd *abfd; | |
1358 | { | |
1359 | asection *s; | |
1360 | bfd_size_type linesz; | |
1361 | PTR buff; | |
1362 | ||
1363 | linesz = bfd_coff_linesz (abfd); | |
1364 | buff = bfd_alloc (abfd, linesz); | |
1365 | if (!buff) | |
b34976b6 | 1366 | return FALSE; |
252b5132 RH |
1367 | for (s = abfd->sections; s != (asection *) NULL; s = s->next) |
1368 | { | |
1369 | if (s->lineno_count) | |
1370 | { | |
1371 | asymbol **q = abfd->outsymbols; | |
1372 | if (bfd_seek (abfd, s->line_filepos, SEEK_SET) != 0) | |
b34976b6 | 1373 | return FALSE; |
252b5132 RH |
1374 | /* Find all the linenumbers in this section */ |
1375 | while (*q) | |
1376 | { | |
1377 | asymbol *p = *q; | |
1378 | if (p->section->output_section == s) | |
1379 | { | |
1380 | alent *l = | |
1381 | BFD_SEND (bfd_asymbol_bfd (p), _get_lineno, | |
1382 | (bfd_asymbol_bfd (p), p)); | |
1383 | if (l) | |
1384 | { | |
1385 | /* Found a linenumber entry, output */ | |
1386 | struct internal_lineno out; | |
1387 | memset ((PTR) & out, 0, sizeof (out)); | |
1388 | out.l_lnno = 0; | |
1389 | out.l_addr.l_symndx = l->u.offset; | |
1390 | bfd_coff_swap_lineno_out (abfd, &out, buff); | |
dc810e39 AM |
1391 | if (bfd_bwrite (buff, (bfd_size_type) linesz, abfd) |
1392 | != linesz) | |
b34976b6 | 1393 | return FALSE; |
252b5132 RH |
1394 | l++; |
1395 | while (l->line_number) | |
1396 | { | |
1397 | out.l_lnno = l->line_number; | |
1398 | out.l_addr.l_symndx = l->u.offset; | |
1399 | bfd_coff_swap_lineno_out (abfd, &out, buff); | |
dc810e39 AM |
1400 | if (bfd_bwrite (buff, (bfd_size_type) linesz, abfd) |
1401 | != linesz) | |
b34976b6 | 1402 | return FALSE; |
252b5132 RH |
1403 | l++; |
1404 | } | |
1405 | } | |
1406 | } | |
1407 | q++; | |
1408 | } | |
1409 | } | |
1410 | } | |
1411 | bfd_release (abfd, buff); | |
b34976b6 | 1412 | return TRUE; |
252b5132 RH |
1413 | } |
1414 | ||
252b5132 RH |
1415 | alent * |
1416 | coff_get_lineno (ignore_abfd, symbol) | |
7442e600 | 1417 | bfd *ignore_abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
1418 | asymbol *symbol; |
1419 | { | |
1420 | return coffsymbol (symbol)->lineno; | |
1421 | } | |
1422 | ||
1423 | #if 0 | |
1424 | ||
1425 | /* This is only called from coff_add_missing_symbols, which has been | |
1426 | disabled. */ | |
1427 | ||
1428 | asymbol * | |
1429 | coff_section_symbol (abfd, name) | |
1430 | bfd *abfd; | |
1431 | char *name; | |
1432 | { | |
1433 | asection *sec = bfd_make_section_old_way (abfd, name); | |
1434 | asymbol *sym; | |
1435 | combined_entry_type *csym; | |
1436 | ||
1437 | sym = sec->symbol; | |
1438 | csym = coff_symbol_from (abfd, sym)->native; | |
1439 | /* Make sure back-end COFF stuff is there. */ | |
1440 | if (csym == 0) | |
1441 | { | |
1442 | struct foo | |
1443 | { | |
1444 | coff_symbol_type sym; | |
1445 | /* @@FIXME This shouldn't use a fixed size!! */ | |
1446 | combined_entry_type e[10]; | |
1447 | }; | |
1448 | struct foo *f; | |
9bab7074 AM |
1449 | |
1450 | f = (struct foo *) bfd_zalloc (abfd, (bfd_size_type) sizeof (*f)); | |
252b5132 RH |
1451 | if (!f) |
1452 | { | |
1453 | bfd_set_error (bfd_error_no_error); | |
1454 | return NULL; | |
1455 | } | |
252b5132 RH |
1456 | coff_symbol_from (abfd, sym)->native = csym = f->e; |
1457 | } | |
1458 | csym[0].u.syment.n_sclass = C_STAT; | |
1459 | csym[0].u.syment.n_numaux = 1; | |
1460 | /* SF_SET_STATICS (sym); @@ ??? */ | |
1461 | csym[1].u.auxent.x_scn.x_scnlen = sec->_raw_size; | |
1462 | csym[1].u.auxent.x_scn.x_nreloc = sec->reloc_count; | |
1463 | csym[1].u.auxent.x_scn.x_nlinno = sec->lineno_count; | |
1464 | ||
1465 | if (sec->output_section == NULL) | |
1466 | { | |
1467 | sec->output_section = sec; | |
1468 | sec->output_offset = 0; | |
1469 | } | |
1470 | ||
1471 | return sym; | |
1472 | } | |
1473 | ||
1474 | #endif /* 0 */ | |
1475 | ||
1476 | /* This function transforms the offsets into the symbol table into | |
1477 | pointers to syments. */ | |
1478 | ||
1479 | static void | |
1480 | coff_pointerize_aux (abfd, table_base, symbol, indaux, auxent) | |
1481 | bfd *abfd; | |
1482 | combined_entry_type *table_base; | |
1483 | combined_entry_type *symbol; | |
1484 | unsigned int indaux; | |
1485 | combined_entry_type *auxent; | |
1486 | { | |
1487 | unsigned int type = symbol->u.syment.n_type; | |
1488 | unsigned int class = symbol->u.syment.n_sclass; | |
1489 | ||
1490 | if (coff_backend_info (abfd)->_bfd_coff_pointerize_aux_hook) | |
1491 | { | |
1492 | if ((*coff_backend_info (abfd)->_bfd_coff_pointerize_aux_hook) | |
1493 | (abfd, table_base, symbol, indaux, auxent)) | |
1494 | return; | |
1495 | } | |
1496 | ||
1497 | /* Don't bother if this is a file or a section */ | |
1498 | if (class == C_STAT && type == T_NULL) | |
1499 | return; | |
1500 | if (class == C_FILE) | |
1501 | return; | |
1502 | ||
1503 | /* Otherwise patch up */ | |
1504 | #define N_TMASK coff_data (abfd)->local_n_tmask | |
1505 | #define N_BTSHFT coff_data (abfd)->local_n_btshft | |
1506 | if ((ISFCN (type) || ISTAG (class) || class == C_BLOCK || class == C_FCN) | |
1507 | && auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l > 0) | |
1508 | { | |
1509 | auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p = | |
1510 | table_base + auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l; | |
1511 | auxent->fix_end = 1; | |
1512 | } | |
1513 | /* A negative tagndx is meaningless, but the SCO 3.2v4 cc can | |
1514 | generate one, so we must be careful to ignore it. */ | |
1515 | if (auxent->u.auxent.x_sym.x_tagndx.l > 0) | |
1516 | { | |
1517 | auxent->u.auxent.x_sym.x_tagndx.p = | |
1518 | table_base + auxent->u.auxent.x_sym.x_tagndx.l; | |
1519 | auxent->fix_tag = 1; | |
1520 | } | |
1521 | } | |
1522 | ||
1523 | /* Allocate space for the ".debug" section, and read it. | |
1524 | We did not read the debug section until now, because | |
244148ad | 1525 | we didn't want to go to the trouble until someone needed it. */ |
252b5132 RH |
1526 | |
1527 | static char * | |
1528 | build_debug_section (abfd) | |
1529 | bfd *abfd; | |
1530 | { | |
1531 | char *debug_section; | |
dc810e39 AM |
1532 | file_ptr position; |
1533 | bfd_size_type sec_size; | |
252b5132 RH |
1534 | |
1535 | asection *sect = bfd_get_section_by_name (abfd, ".debug"); | |
1536 | ||
1537 | if (!sect) | |
1538 | { | |
1539 | bfd_set_error (bfd_error_no_debug_section); | |
1540 | return NULL; | |
1541 | } | |
1542 | ||
dc810e39 AM |
1543 | sec_size = bfd_get_section_size_before_reloc (sect); |
1544 | debug_section = (PTR) bfd_alloc (abfd, sec_size); | |
252b5132 RH |
1545 | if (debug_section == NULL) |
1546 | return NULL; | |
1547 | ||
244148ad | 1548 | /* Seek to the beginning of the `.debug' section and read it. |
252b5132 RH |
1549 | Save the current position first; it is needed by our caller. |
1550 | Then read debug section and reset the file pointer. */ | |
1551 | ||
1552 | position = bfd_tell (abfd); | |
1553 | if (bfd_seek (abfd, sect->filepos, SEEK_SET) != 0 | |
dc810e39 | 1554 | || bfd_bread (debug_section, sec_size, abfd) != sec_size |
252b5132 RH |
1555 | || bfd_seek (abfd, position, SEEK_SET) != 0) |
1556 | return NULL; | |
1557 | return debug_section; | |
1558 | } | |
1559 | ||
252b5132 RH |
1560 | /* Return a pointer to a malloc'd copy of 'name'. 'name' may not be |
1561 | \0-terminated, but will not exceed 'maxlen' characters. The copy *will* | |
1562 | be \0-terminated. */ | |
1563 | static char * | |
1564 | copy_name (abfd, name, maxlen) | |
1565 | bfd *abfd; | |
1566 | char *name; | |
dc810e39 | 1567 | size_t maxlen; |
252b5132 | 1568 | { |
dc810e39 | 1569 | size_t len; |
252b5132 RH |
1570 | char *newname; |
1571 | ||
1572 | for (len = 0; len < maxlen; ++len) | |
1573 | { | |
1574 | if (name[len] == '\0') | |
1575 | { | |
1576 | break; | |
1577 | } | |
1578 | } | |
1579 | ||
dc810e39 | 1580 | if ((newname = (PTR) bfd_alloc (abfd, (bfd_size_type) len + 1)) == NULL) |
252b5132 RH |
1581 | return (NULL); |
1582 | strncpy (newname, name, len); | |
1583 | newname[len] = '\0'; | |
1584 | return newname; | |
1585 | } | |
1586 | ||
1587 | /* Read in the external symbols. */ | |
1588 | ||
b34976b6 | 1589 | bfd_boolean |
252b5132 RH |
1590 | _bfd_coff_get_external_symbols (abfd) |
1591 | bfd *abfd; | |
1592 | { | |
1593 | bfd_size_type symesz; | |
dc810e39 | 1594 | bfd_size_type size; |
252b5132 RH |
1595 | PTR syms; |
1596 | ||
1597 | if (obj_coff_external_syms (abfd) != NULL) | |
b34976b6 | 1598 | return TRUE; |
252b5132 RH |
1599 | |
1600 | symesz = bfd_coff_symesz (abfd); | |
1601 | ||
1602 | size = obj_raw_syment_count (abfd) * symesz; | |
1603 | ||
1604 | syms = (PTR) bfd_malloc (size); | |
1605 | if (syms == NULL && size != 0) | |
b34976b6 | 1606 | return FALSE; |
252b5132 RH |
1607 | |
1608 | if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0 | |
dc810e39 | 1609 | || bfd_bread (syms, size, abfd) != size) |
252b5132 RH |
1610 | { |
1611 | if (syms != NULL) | |
1612 | free (syms); | |
b34976b6 | 1613 | return FALSE; |
252b5132 RH |
1614 | } |
1615 | ||
1616 | obj_coff_external_syms (abfd) = syms; | |
1617 | ||
b34976b6 | 1618 | return TRUE; |
252b5132 RH |
1619 | } |
1620 | ||
1621 | /* Read in the external strings. The strings are not loaded until | |
1622 | they are needed. This is because we have no simple way of | |
1623 | detecting a missing string table in an archive. */ | |
1624 | ||
1625 | const char * | |
1626 | _bfd_coff_read_string_table (abfd) | |
1627 | bfd *abfd; | |
1628 | { | |
1629 | char extstrsize[STRING_SIZE_SIZE]; | |
dc810e39 | 1630 | bfd_size_type strsize; |
252b5132 | 1631 | char *strings; |
dc810e39 | 1632 | file_ptr pos; |
252b5132 RH |
1633 | |
1634 | if (obj_coff_strings (abfd) != NULL) | |
1635 | return obj_coff_strings (abfd); | |
1636 | ||
1637 | if (obj_sym_filepos (abfd) == 0) | |
1638 | { | |
1639 | bfd_set_error (bfd_error_no_symbols); | |
1640 | return NULL; | |
1641 | } | |
1642 | ||
dc810e39 AM |
1643 | pos = obj_sym_filepos (abfd); |
1644 | pos += obj_raw_syment_count (abfd) * bfd_coff_symesz (abfd); | |
1645 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) | |
252b5132 | 1646 | return NULL; |
244148ad | 1647 | |
dc810e39 AM |
1648 | if (bfd_bread (extstrsize, (bfd_size_type) sizeof extstrsize, abfd) |
1649 | != sizeof extstrsize) | |
252b5132 RH |
1650 | { |
1651 | if (bfd_get_error () != bfd_error_file_truncated) | |
1652 | return NULL; | |
1653 | ||
1654 | /* There is no string table. */ | |
1655 | strsize = STRING_SIZE_SIZE; | |
1656 | } | |
1657 | else | |
1658 | { | |
1659 | #if STRING_SIZE_SIZE == 4 | |
dc810e39 | 1660 | strsize = H_GET_32 (abfd, extstrsize); |
252b5132 | 1661 | #else |
dc810e39 | 1662 | #error Change H_GET_32 |
252b5132 RH |
1663 | #endif |
1664 | } | |
1665 | ||
1666 | if (strsize < STRING_SIZE_SIZE) | |
1667 | { | |
1668 | (*_bfd_error_handler) | |
8f615d07 | 1669 | (_("%s: bad string table size %lu"), bfd_archive_filename (abfd), |
252b5132 RH |
1670 | (unsigned long) strsize); |
1671 | bfd_set_error (bfd_error_bad_value); | |
1672 | return NULL; | |
1673 | } | |
1674 | ||
1675 | strings = (char *) bfd_malloc (strsize); | |
1676 | if (strings == NULL) | |
1677 | return NULL; | |
1678 | ||
dc810e39 | 1679 | if (bfd_bread (strings + STRING_SIZE_SIZE, strsize - STRING_SIZE_SIZE, abfd) |
252b5132 RH |
1680 | != strsize - STRING_SIZE_SIZE) |
1681 | { | |
1682 | free (strings); | |
1683 | return NULL; | |
1684 | } | |
1685 | ||
1686 | obj_coff_strings (abfd) = strings; | |
1687 | ||
1688 | return strings; | |
1689 | } | |
1690 | ||
1691 | /* Free up the external symbols and strings read from a COFF file. */ | |
1692 | ||
b34976b6 | 1693 | bfd_boolean |
252b5132 RH |
1694 | _bfd_coff_free_symbols (abfd) |
1695 | bfd *abfd; | |
1696 | { | |
1697 | if (obj_coff_external_syms (abfd) != NULL | |
1698 | && ! obj_coff_keep_syms (abfd)) | |
1699 | { | |
1700 | free (obj_coff_external_syms (abfd)); | |
1701 | obj_coff_external_syms (abfd) = NULL; | |
1702 | } | |
1703 | if (obj_coff_strings (abfd) != NULL | |
1704 | && ! obj_coff_keep_strings (abfd)) | |
1705 | { | |
1706 | free (obj_coff_strings (abfd)); | |
1707 | obj_coff_strings (abfd) = NULL; | |
1708 | } | |
b34976b6 | 1709 | return TRUE; |
252b5132 RH |
1710 | } |
1711 | ||
1712 | /* Read a symbol table into freshly bfd_allocated memory, swap it, and | |
1713 | knit the symbol names into a normalized form. By normalized here I | |
1714 | mean that all symbols have an n_offset pointer that points to a null- | |
1715 | terminated string. */ | |
1716 | ||
1717 | combined_entry_type * | |
1718 | coff_get_normalized_symtab (abfd) | |
1719 | bfd *abfd; | |
1720 | { | |
1721 | combined_entry_type *internal; | |
1722 | combined_entry_type *internal_ptr; | |
1723 | combined_entry_type *symbol_ptr; | |
1724 | combined_entry_type *internal_end; | |
dc810e39 | 1725 | size_t symesz; |
252b5132 RH |
1726 | char *raw_src; |
1727 | char *raw_end; | |
1728 | const char *string_table = NULL; | |
1729 | char *debug_section = NULL; | |
dc810e39 | 1730 | bfd_size_type size; |
252b5132 RH |
1731 | |
1732 | if (obj_raw_syments (abfd) != NULL) | |
1733 | return obj_raw_syments (abfd); | |
1734 | ||
1735 | size = obj_raw_syment_count (abfd) * sizeof (combined_entry_type); | |
1736 | internal = (combined_entry_type *) bfd_zalloc (abfd, size); | |
1737 | if (internal == NULL && size != 0) | |
1738 | return NULL; | |
1739 | internal_end = internal + obj_raw_syment_count (abfd); | |
1740 | ||
1741 | if (! _bfd_coff_get_external_symbols (abfd)) | |
1742 | return NULL; | |
1743 | ||
1744 | raw_src = (char *) obj_coff_external_syms (abfd); | |
1745 | ||
1746 | /* mark the end of the symbols */ | |
1747 | symesz = bfd_coff_symesz (abfd); | |
1748 | raw_end = (char *) raw_src + obj_raw_syment_count (abfd) * symesz; | |
1749 | ||
1750 | /* FIXME SOMEDAY. A string table size of zero is very weird, but | |
1751 | probably possible. If one shows up, it will probably kill us. */ | |
1752 | ||
1753 | /* Swap all the raw entries */ | |
1754 | for (internal_ptr = internal; | |
1755 | raw_src < raw_end; | |
1756 | raw_src += symesz, internal_ptr++) | |
1757 | { | |
1758 | ||
1759 | unsigned int i; | |
1760 | bfd_coff_swap_sym_in (abfd, (PTR) raw_src, | |
1761 | (PTR) & internal_ptr->u.syment); | |
1762 | symbol_ptr = internal_ptr; | |
1763 | ||
1764 | for (i = 0; | |
1765 | i < symbol_ptr->u.syment.n_numaux; | |
1766 | i++) | |
1767 | { | |
1768 | internal_ptr++; | |
1769 | raw_src += symesz; | |
1770 | bfd_coff_swap_aux_in (abfd, (PTR) raw_src, | |
1771 | symbol_ptr->u.syment.n_type, | |
1772 | symbol_ptr->u.syment.n_sclass, | |
dc810e39 | 1773 | (int) i, symbol_ptr->u.syment.n_numaux, |
252b5132 RH |
1774 | &(internal_ptr->u.auxent)); |
1775 | coff_pointerize_aux (abfd, internal, symbol_ptr, i, | |
1776 | internal_ptr); | |
1777 | } | |
1778 | } | |
1779 | ||
1780 | /* Free the raw symbols, but not the strings (if we have them). */ | |
b34976b6 | 1781 | obj_coff_keep_strings (abfd) = TRUE; |
252b5132 RH |
1782 | if (! _bfd_coff_free_symbols (abfd)) |
1783 | return NULL; | |
1784 | ||
1785 | for (internal_ptr = internal; internal_ptr < internal_end; | |
1786 | internal_ptr++) | |
1787 | { | |
1788 | if (internal_ptr->u.syment.n_sclass == C_FILE | |
1789 | && internal_ptr->u.syment.n_numaux > 0) | |
1790 | { | |
1791 | /* make a file symbol point to the name in the auxent, since | |
1792 | the text ".file" is redundant */ | |
1793 | if ((internal_ptr + 1)->u.auxent.x_file.x_n.x_zeroes == 0) | |
1794 | { | |
1795 | /* the filename is a long one, point into the string table */ | |
1796 | if (string_table == NULL) | |
1797 | { | |
1798 | string_table = _bfd_coff_read_string_table (abfd); | |
1799 | if (string_table == NULL) | |
1800 | return NULL; | |
1801 | } | |
1802 | ||
1803 | internal_ptr->u.syment._n._n_n._n_offset = | |
1804 | ((long) | |
1805 | (string_table | |
1806 | + (internal_ptr + 1)->u.auxent.x_file.x_n.x_offset)); | |
1807 | } | |
1808 | else | |
1809 | { | |
7bb9db4d ILT |
1810 | /* Ordinary short filename, put into memory anyway. The |
1811 | Microsoft PE tools sometimes store a filename in | |
1812 | multiple AUX entries. */ | |
ec0ef80e DD |
1813 | if (internal_ptr->u.syment.n_numaux > 1 |
1814 | && coff_data (abfd)->pe) | |
1815 | { | |
7bb9db4d ILT |
1816 | internal_ptr->u.syment._n._n_n._n_offset = |
1817 | ((long) | |
1818 | copy_name (abfd, | |
1819 | (internal_ptr + 1)->u.auxent.x_file.x_fname, | |
1820 | internal_ptr->u.syment.n_numaux * symesz)); | |
ec0ef80e DD |
1821 | } |
1822 | else | |
1823 | { | |
7bb9db4d ILT |
1824 | internal_ptr->u.syment._n._n_n._n_offset = |
1825 | ((long) | |
1826 | copy_name (abfd, | |
1827 | (internal_ptr + 1)->u.auxent.x_file.x_fname, | |
dc810e39 | 1828 | (size_t) bfd_coff_filnmlen (abfd))); |
ec0ef80e | 1829 | } |
252b5132 RH |
1830 | } |
1831 | } | |
1832 | else | |
1833 | { | |
1834 | if (internal_ptr->u.syment._n._n_n._n_zeroes != 0) | |
1835 | { | |
1836 | /* This is a "short" name. Make it long. */ | |
dc810e39 AM |
1837 | size_t i; |
1838 | char *newstring; | |
252b5132 RH |
1839 | |
1840 | /* find the length of this string without walking into memory | |
1841 | that isn't ours. */ | |
1842 | for (i = 0; i < 8; ++i) | |
dc810e39 AM |
1843 | if (internal_ptr->u.syment._n._n_name[i] == '\0') |
1844 | break; | |
252b5132 | 1845 | |
9bab7074 | 1846 | newstring = (PTR) bfd_zalloc (abfd, (bfd_size_type) (i + 1)); |
dc810e39 | 1847 | if (newstring == NULL) |
252b5132 | 1848 | return (NULL); |
dc810e39 | 1849 | strncpy (newstring, internal_ptr->u.syment._n._n_name, i); |
252b5132 RH |
1850 | internal_ptr->u.syment._n._n_n._n_offset = (long int) newstring; |
1851 | internal_ptr->u.syment._n._n_n._n_zeroes = 0; | |
1852 | } | |
1853 | else if (internal_ptr->u.syment._n._n_n._n_offset == 0) | |
1854 | internal_ptr->u.syment._n._n_n._n_offset = (long int) ""; | |
1855 | else if (!bfd_coff_symname_in_debug (abfd, &internal_ptr->u.syment)) | |
1856 | { | |
1857 | /* Long name already. Point symbol at the string in the | |
1858 | table. */ | |
1859 | if (string_table == NULL) | |
1860 | { | |
1861 | string_table = _bfd_coff_read_string_table (abfd); | |
1862 | if (string_table == NULL) | |
1863 | return NULL; | |
1864 | } | |
1865 | internal_ptr->u.syment._n._n_n._n_offset = | |
1866 | ((long int) | |
1867 | (string_table | |
1868 | + internal_ptr->u.syment._n._n_n._n_offset)); | |
1869 | } | |
1870 | else | |
1871 | { | |
1872 | /* Long name in debug section. Very similar. */ | |
1873 | if (debug_section == NULL) | |
1874 | debug_section = build_debug_section (abfd); | |
1875 | internal_ptr->u.syment._n._n_n._n_offset = (long int) | |
1876 | (debug_section + internal_ptr->u.syment._n._n_n._n_offset); | |
1877 | } | |
1878 | } | |
1879 | internal_ptr += internal_ptr->u.syment.n_numaux; | |
1880 | } | |
1881 | ||
1882 | obj_raw_syments (abfd) = internal; | |
1883 | BFD_ASSERT (obj_raw_syment_count (abfd) | |
1884 | == (unsigned int) (internal_ptr - internal)); | |
1885 | ||
1886 | return (internal); | |
1887 | } /* coff_get_normalized_symtab() */ | |
1888 | ||
1889 | long | |
1890 | coff_get_reloc_upper_bound (abfd, asect) | |
1891 | bfd *abfd; | |
1892 | sec_ptr asect; | |
1893 | { | |
1894 | if (bfd_get_format (abfd) != bfd_object) | |
1895 | { | |
1896 | bfd_set_error (bfd_error_invalid_operation); | |
1897 | return -1; | |
1898 | } | |
1899 | return (asect->reloc_count + 1) * sizeof (arelent *); | |
1900 | } | |
1901 | ||
1902 | asymbol * | |
1903 | coff_make_empty_symbol (abfd) | |
1904 | bfd *abfd; | |
1905 | { | |
dc810e39 | 1906 | bfd_size_type amt = sizeof (coff_symbol_type); |
9bab7074 | 1907 | coff_symbol_type *new = (coff_symbol_type *) bfd_zalloc (abfd, amt); |
252b5132 RH |
1908 | if (new == NULL) |
1909 | return (NULL); | |
252b5132 RH |
1910 | new->symbol.section = 0; |
1911 | new->native = 0; | |
1912 | new->lineno = (alent *) NULL; | |
b34976b6 | 1913 | new->done_lineno = FALSE; |
252b5132 RH |
1914 | new->symbol.the_bfd = abfd; |
1915 | return &new->symbol; | |
1916 | } | |
1917 | ||
1918 | /* Make a debugging symbol. */ | |
1919 | ||
1920 | asymbol * | |
1921 | coff_bfd_make_debug_symbol (abfd, ptr, sz) | |
1922 | bfd *abfd; | |
7442e600 ILT |
1923 | PTR ptr ATTRIBUTE_UNUSED; |
1924 | unsigned long sz ATTRIBUTE_UNUSED; | |
252b5132 | 1925 | { |
dc810e39 AM |
1926 | bfd_size_type amt = sizeof (coff_symbol_type); |
1927 | coff_symbol_type *new = (coff_symbol_type *) bfd_alloc (abfd, amt); | |
252b5132 RH |
1928 | if (new == NULL) |
1929 | return (NULL); | |
1930 | /* @@ The 10 is a guess at a plausible maximum number of aux entries | |
1931 | (but shouldn't be a constant). */ | |
dc810e39 AM |
1932 | amt = sizeof (combined_entry_type) * 10; |
1933 | new->native = (combined_entry_type *) bfd_zalloc (abfd, amt); | |
252b5132 RH |
1934 | if (!new->native) |
1935 | return (NULL); | |
1936 | new->symbol.section = bfd_abs_section_ptr; | |
1937 | new->symbol.flags = BSF_DEBUGGING; | |
1938 | new->lineno = (alent *) NULL; | |
b34976b6 | 1939 | new->done_lineno = FALSE; |
252b5132 RH |
1940 | new->symbol.the_bfd = abfd; |
1941 | return &new->symbol; | |
1942 | } | |
1943 | ||
252b5132 RH |
1944 | void |
1945 | coff_get_symbol_info (abfd, symbol, ret) | |
1946 | bfd *abfd; | |
1947 | asymbol *symbol; | |
1948 | symbol_info *ret; | |
1949 | { | |
1950 | bfd_symbol_info (symbol, ret); | |
1951 | if (coffsymbol (symbol)->native != NULL | |
1952 | && coffsymbol (symbol)->native->fix_value) | |
1953 | { | |
beb1bf64 TR |
1954 | ret->value = coffsymbol (symbol)->native->u.syment.n_value - |
1955 | (unsigned long) obj_raw_syments (abfd); | |
252b5132 RH |
1956 | } |
1957 | } | |
1958 | ||
1959 | /* Return the COFF syment for a symbol. */ | |
1960 | ||
b34976b6 | 1961 | bfd_boolean |
252b5132 RH |
1962 | bfd_coff_get_syment (abfd, symbol, psyment) |
1963 | bfd *abfd; | |
1964 | asymbol *symbol; | |
1965 | struct internal_syment *psyment; | |
1966 | { | |
1967 | coff_symbol_type *csym; | |
1968 | ||
1969 | csym = coff_symbol_from (abfd, symbol); | |
1970 | if (csym == NULL || csym->native == NULL) | |
1971 | { | |
1972 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 1973 | return FALSE; |
252b5132 RH |
1974 | } |
1975 | ||
1976 | *psyment = csym->native->u.syment; | |
1977 | ||
1978 | if (csym->native->fix_value) | |
dc810e39 | 1979 | psyment->n_value = psyment->n_value - |
beb1bf64 | 1980 | (unsigned long) obj_raw_syments (abfd); |
252b5132 RH |
1981 | |
1982 | /* FIXME: We should handle fix_line here. */ | |
1983 | ||
b34976b6 | 1984 | return TRUE; |
252b5132 RH |
1985 | } |
1986 | ||
1987 | /* Return the COFF auxent for a symbol. */ | |
1988 | ||
b34976b6 | 1989 | bfd_boolean |
252b5132 RH |
1990 | bfd_coff_get_auxent (abfd, symbol, indx, pauxent) |
1991 | bfd *abfd; | |
1992 | asymbol *symbol; | |
1993 | int indx; | |
1994 | union internal_auxent *pauxent; | |
1995 | { | |
1996 | coff_symbol_type *csym; | |
1997 | combined_entry_type *ent; | |
1998 | ||
1999 | csym = coff_symbol_from (abfd, symbol); | |
2000 | ||
2001 | if (csym == NULL | |
2002 | || csym->native == NULL | |
2003 | || indx >= csym->native->u.syment.n_numaux) | |
2004 | { | |
2005 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 2006 | return FALSE; |
252b5132 RH |
2007 | } |
2008 | ||
2009 | ent = csym->native + indx + 1; | |
2010 | ||
2011 | *pauxent = ent->u.auxent; | |
2012 | ||
2013 | if (ent->fix_tag) | |
2014 | pauxent->x_sym.x_tagndx.l = | |
2015 | ((combined_entry_type *) pauxent->x_sym.x_tagndx.p | |
2016 | - obj_raw_syments (abfd)); | |
2017 | ||
2018 | if (ent->fix_end) | |
2019 | pauxent->x_sym.x_fcnary.x_fcn.x_endndx.l = | |
2020 | ((combined_entry_type *) pauxent->x_sym.x_fcnary.x_fcn.x_endndx.p | |
2021 | - obj_raw_syments (abfd)); | |
2022 | ||
2023 | if (ent->fix_scnlen) | |
2024 | pauxent->x_csect.x_scnlen.l = | |
2025 | ((combined_entry_type *) pauxent->x_csect.x_scnlen.p | |
2026 | - obj_raw_syments (abfd)); | |
2027 | ||
b34976b6 | 2028 | return TRUE; |
252b5132 RH |
2029 | } |
2030 | ||
2031 | /* Print out information about COFF symbol. */ | |
2032 | ||
2033 | void | |
2034 | coff_print_symbol (abfd, filep, symbol, how) | |
2035 | bfd *abfd; | |
2036 | PTR filep; | |
2037 | asymbol *symbol; | |
2038 | bfd_print_symbol_type how; | |
2039 | { | |
2040 | FILE *file = (FILE *) filep; | |
2041 | ||
2042 | switch (how) | |
2043 | { | |
2044 | case bfd_print_symbol_name: | |
2045 | fprintf (file, "%s", symbol->name); | |
2046 | break; | |
2047 | ||
2048 | case bfd_print_symbol_more: | |
2049 | fprintf (file, "coff %s %s", | |
2050 | coffsymbol (symbol)->native ? "n" : "g", | |
2051 | coffsymbol (symbol)->lineno ? "l" : " "); | |
2052 | break; | |
2053 | ||
2054 | case bfd_print_symbol_all: | |
2055 | if (coffsymbol (symbol)->native) | |
2056 | { | |
beb1bf64 | 2057 | bfd_vma val; |
252b5132 RH |
2058 | unsigned int aux; |
2059 | combined_entry_type *combined = coffsymbol (symbol)->native; | |
2060 | combined_entry_type *root = obj_raw_syments (abfd); | |
2061 | struct lineno_cache_entry *l = coffsymbol (symbol)->lineno; | |
2062 | ||
2063 | fprintf (file, "[%3ld]", (long) (combined - root)); | |
2064 | ||
2065 | if (! combined->fix_value) | |
beb1bf64 | 2066 | val = (bfd_vma) combined->u.syment.n_value; |
252b5132 | 2067 | else |
beb1bf64 | 2068 | val = combined->u.syment.n_value - (unsigned long) root; |
252b5132 | 2069 | |
beb1bf64 | 2070 | #ifndef XCOFF64 |
252b5132 RH |
2071 | fprintf (file, |
2072 | "(sec %2d)(fl 0x%02x)(ty %3x)(scl %3d) (nx %d) 0x%08lx %s", | |
2073 | combined->u.syment.n_scnum, | |
2074 | combined->u.syment.n_flags, | |
2075 | combined->u.syment.n_type, | |
2076 | combined->u.syment.n_sclass, | |
2077 | combined->u.syment.n_numaux, | |
beb1bf64 TR |
2078 | (unsigned long) val, |
2079 | symbol->name); | |
2080 | #else | |
2081 | /* Print out the wide, 64 bit, symbol value */ | |
2082 | fprintf (file, | |
2083 | "(sec %2d)(fl 0x%02x)(ty %3x)(scl %3d) (nx %d) 0x%016llx %s", | |
2084 | combined->u.syment.n_scnum, | |
2085 | combined->u.syment.n_flags, | |
2086 | combined->u.syment.n_type, | |
2087 | combined->u.syment.n_sclass, | |
2088 | combined->u.syment.n_numaux, | |
252b5132 RH |
2089 | val, |
2090 | symbol->name); | |
beb1bf64 | 2091 | #endif |
252b5132 RH |
2092 | |
2093 | for (aux = 0; aux < combined->u.syment.n_numaux; aux++) | |
2094 | { | |
2095 | combined_entry_type *auxp = combined + aux + 1; | |
2096 | long tagndx; | |
2097 | ||
2098 | if (auxp->fix_tag) | |
2099 | tagndx = auxp->u.auxent.x_sym.x_tagndx.p - root; | |
2100 | else | |
2101 | tagndx = auxp->u.auxent.x_sym.x_tagndx.l; | |
2102 | ||
2103 | fprintf (file, "\n"); | |
2104 | ||
2105 | if (bfd_coff_print_aux (abfd, file, root, combined, auxp, aux)) | |
2106 | continue; | |
2107 | ||
2108 | switch (combined->u.syment.n_sclass) | |
2109 | { | |
2110 | case C_FILE: | |
2111 | fprintf (file, "File "); | |
2112 | break; | |
2113 | ||
2114 | case C_STAT: | |
2115 | if (combined->u.syment.n_type == T_NULL) | |
2116 | /* probably a section symbol? */ | |
2117 | { | |
2118 | fprintf (file, "AUX scnlen 0x%lx nreloc %d nlnno %d", | |
2119 | (long) auxp->u.auxent.x_scn.x_scnlen, | |
2120 | auxp->u.auxent.x_scn.x_nreloc, | |
2121 | auxp->u.auxent.x_scn.x_nlinno); | |
2122 | if (auxp->u.auxent.x_scn.x_checksum != 0 | |
2123 | || auxp->u.auxent.x_scn.x_associated != 0 | |
2124 | || auxp->u.auxent.x_scn.x_comdat != 0) | |
2125 | fprintf (file, " checksum 0x%lx assoc %d comdat %d", | |
2126 | auxp->u.auxent.x_scn.x_checksum, | |
2127 | auxp->u.auxent.x_scn.x_associated, | |
2128 | auxp->u.auxent.x_scn.x_comdat); | |
2129 | break; | |
2130 | } | |
312191a6 ILT |
2131 | /* else fall through */ |
2132 | case C_EXT: | |
2133 | if (ISFCN (combined->u.syment.n_type)) | |
2134 | { | |
cea4409c AM |
2135 | long next, llnos; |
2136 | ||
2137 | if (auxp->fix_end) | |
2138 | next = (auxp->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p | |
2139 | - root); | |
2140 | else | |
2141 | next = auxp->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l; | |
2142 | llnos = auxp->u.auxent.x_sym.x_fcnary.x_fcn.x_lnnoptr; | |
312191a6 | 2143 | fprintf (file, |
3d66c4f7 | 2144 | "AUX tagndx %ld ttlsiz 0x%lx lnnos %ld next %ld", |
cea4409c AM |
2145 | tagndx, auxp->u.auxent.x_sym.x_misc.x_fsize, |
2146 | llnos, next); | |
312191a6 ILT |
2147 | break; |
2148 | } | |
252b5132 | 2149 | /* else fall through */ |
252b5132 RH |
2150 | default: |
2151 | fprintf (file, "AUX lnno %d size 0x%x tagndx %ld", | |
2152 | auxp->u.auxent.x_sym.x_misc.x_lnsz.x_lnno, | |
2153 | auxp->u.auxent.x_sym.x_misc.x_lnsz.x_size, | |
2154 | tagndx); | |
2155 | if (auxp->fix_end) | |
2156 | fprintf (file, " endndx %ld", | |
2157 | ((long) | |
2158 | (auxp->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p | |
2159 | - root))); | |
2160 | break; | |
2161 | } | |
2162 | } | |
2163 | ||
2164 | if (l) | |
2165 | { | |
2166 | fprintf (file, "\n%s :", l->u.sym->name); | |
2167 | l++; | |
2168 | while (l->line_number) | |
2169 | { | |
2170 | fprintf (file, "\n%4d : 0x%lx", | |
2171 | l->line_number, | |
2172 | ((unsigned long) | |
2173 | (l->u.offset + symbol->section->vma))); | |
2174 | l++; | |
2175 | } | |
2176 | } | |
2177 | } | |
2178 | else | |
2179 | { | |
60b89a18 | 2180 | bfd_print_symbol_vandf (abfd, (PTR) file, symbol); |
252b5132 RH |
2181 | fprintf (file, " %-5s %s %s %s", |
2182 | symbol->section->name, | |
2183 | coffsymbol (symbol)->native ? "n" : "g", | |
2184 | coffsymbol (symbol)->lineno ? "l" : " ", | |
2185 | symbol->name); | |
2186 | } | |
2187 | } | |
2188 | } | |
2189 | ||
2190 | /* Return whether a symbol name implies a local symbol. In COFF, | |
2191 | local symbols generally start with ``.L''. Most targets use this | |
2192 | function for the is_local_label_name entry point, but some may | |
2193 | override it. */ | |
2194 | ||
b34976b6 | 2195 | bfd_boolean |
252b5132 | 2196 | _bfd_coff_is_local_label_name (abfd, name) |
7442e600 | 2197 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
2198 | const char *name; |
2199 | { | |
b34976b6 | 2200 | return name[0] == '.' && name[1] == 'L'; |
252b5132 RH |
2201 | } |
2202 | ||
9a968f43 NC |
2203 | /* Provided a BFD, a section and an offset (in bytes, not octets) into the |
2204 | section, calculate and return the name of the source file and the line | |
2205 | nearest to the wanted location. */ | |
435b1e90 | 2206 | |
b34976b6 | 2207 | bfd_boolean |
252b5132 RH |
2208 | coff_find_nearest_line (abfd, section, symbols, offset, filename_ptr, |
2209 | functionname_ptr, line_ptr) | |
2210 | bfd *abfd; | |
2211 | asection *section; | |
2212 | asymbol **symbols; | |
2213 | bfd_vma offset; | |
dc810e39 AM |
2214 | const char **filename_ptr; |
2215 | const char **functionname_ptr; | |
252b5132 RH |
2216 | unsigned int *line_ptr; |
2217 | { | |
b34976b6 | 2218 | bfd_boolean found; |
252b5132 RH |
2219 | unsigned int i; |
2220 | unsigned int line_base; | |
2221 | coff_data_type *cof = coff_data (abfd); | |
2222 | /* Run through the raw syments if available */ | |
2223 | combined_entry_type *p; | |
2224 | combined_entry_type *pend; | |
2225 | alent *l; | |
2226 | struct coff_section_tdata *sec_data; | |
dc810e39 | 2227 | bfd_size_type amt; |
252b5132 RH |
2228 | |
2229 | /* Before looking through the symbol table, try to use a .stab | |
2230 | section to find the information. */ | |
2231 | if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, | |
2232 | &found, filename_ptr, | |
2233 | functionname_ptr, line_ptr, | |
51db3708 | 2234 | &coff_data(abfd)->line_info)) |
b34976b6 | 2235 | return FALSE; |
51db3708 | 2236 | |
4ca29a6a | 2237 | if (found) |
b34976b6 | 2238 | return TRUE; |
4ca29a6a | 2239 | |
51db3708 NC |
2240 | /* Also try examining DWARF2 debugging information. */ |
2241 | if (_bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset, | |
2242 | filename_ptr, functionname_ptr, | |
2243 | line_ptr, 0, | |
2244 | &coff_data(abfd)->dwarf2_find_line_info)) | |
b34976b6 | 2245 | return TRUE; |
51db3708 | 2246 | |
252b5132 RH |
2247 | *filename_ptr = 0; |
2248 | *functionname_ptr = 0; | |
2249 | *line_ptr = 0; | |
2250 | ||
2251 | /* Don't try and find line numbers in a non coff file */ | |
9bd09e22 | 2252 | if (!bfd_family_coff (abfd)) |
b34976b6 | 2253 | return FALSE; |
252b5132 RH |
2254 | |
2255 | if (cof == NULL) | |
b34976b6 | 2256 | return FALSE; |
252b5132 RH |
2257 | |
2258 | /* Find the first C_FILE symbol. */ | |
2259 | p = cof->raw_syments; | |
2260 | if (!p) | |
b34976b6 | 2261 | return FALSE; |
252b5132 RH |
2262 | |
2263 | pend = p + cof->raw_syment_count; | |
2264 | while (p < pend) | |
2265 | { | |
2266 | if (p->u.syment.n_sclass == C_FILE) | |
2267 | break; | |
2268 | p += 1 + p->u.syment.n_numaux; | |
2269 | } | |
2270 | ||
2271 | if (p < pend) | |
2272 | { | |
2273 | bfd_vma sec_vma; | |
2274 | bfd_vma maxdiff; | |
2275 | ||
2276 | /* Look through the C_FILE symbols to find the best one. */ | |
2277 | sec_vma = bfd_get_section_vma (abfd, section); | |
2278 | *filename_ptr = (char *) p->u.syment._n._n_n._n_offset; | |
2279 | maxdiff = (bfd_vma) 0 - (bfd_vma) 1; | |
2280 | while (1) | |
2281 | { | |
2282 | combined_entry_type *p2; | |
2283 | ||
2284 | for (p2 = p + 1 + p->u.syment.n_numaux; | |
2285 | p2 < pend; | |
2286 | p2 += 1 + p2->u.syment.n_numaux) | |
2287 | { | |
2288 | if (p2->u.syment.n_scnum > 0 | |
2289 | && (section | |
2290 | == coff_section_from_bfd_index (abfd, | |
2291 | p2->u.syment.n_scnum))) | |
2292 | break; | |
2293 | if (p2->u.syment.n_sclass == C_FILE) | |
2294 | { | |
2295 | p2 = pend; | |
2296 | break; | |
2297 | } | |
2298 | } | |
2299 | ||
798c1fb8 ILT |
2300 | /* We use <= MAXDIFF here so that if we get a zero length |
2301 | file, we actually use the next file entry. */ | |
252b5132 RH |
2302 | if (p2 < pend |
2303 | && offset + sec_vma >= (bfd_vma) p2->u.syment.n_value | |
798c1fb8 | 2304 | && offset + sec_vma - (bfd_vma) p2->u.syment.n_value <= maxdiff) |
252b5132 RH |
2305 | { |
2306 | *filename_ptr = (char *) p->u.syment._n._n_n._n_offset; | |
2307 | maxdiff = offset + sec_vma - p2->u.syment.n_value; | |
2308 | } | |
2309 | ||
2310 | /* Avoid endless loops on erroneous files by ensuring that | |
2311 | we always move forward in the file. */ | |
cea4409c | 2312 | if (p >= cof->raw_syments + p->u.syment.n_value) |
252b5132 RH |
2313 | break; |
2314 | ||
2315 | p = cof->raw_syments + p->u.syment.n_value; | |
2316 | if (p > pend || p->u.syment.n_sclass != C_FILE) | |
2317 | break; | |
2318 | } | |
2319 | } | |
2320 | ||
2321 | /* Now wander though the raw linenumbers of the section */ | |
2322 | /* If we have been called on this section before, and the offset we | |
2323 | want is further down then we can prime the lookup loop. */ | |
2324 | sec_data = coff_section_data (abfd, section); | |
2325 | if (sec_data != NULL | |
2326 | && sec_data->i > 0 | |
2327 | && offset >= sec_data->offset) | |
2328 | { | |
2329 | i = sec_data->i; | |
2330 | *functionname_ptr = sec_data->function; | |
2331 | line_base = sec_data->line_base; | |
2332 | } | |
2333 | else | |
2334 | { | |
2335 | i = 0; | |
2336 | line_base = 0; | |
2337 | } | |
2338 | ||
2339 | if (section->lineno != NULL) | |
2340 | { | |
798c1fb8 ILT |
2341 | bfd_vma last_value = 0; |
2342 | ||
252b5132 RH |
2343 | l = §ion->lineno[i]; |
2344 | ||
2345 | for (; i < section->lineno_count; i++) | |
2346 | { | |
2347 | if (l->line_number == 0) | |
2348 | { | |
2349 | /* Get the symbol this line number points at */ | |
2350 | coff_symbol_type *coff = (coff_symbol_type *) (l->u.sym); | |
2351 | if (coff->symbol.value > offset) | |
2352 | break; | |
2353 | *functionname_ptr = coff->symbol.name; | |
798c1fb8 | 2354 | last_value = coff->symbol.value; |
252b5132 RH |
2355 | if (coff->native) |
2356 | { | |
2357 | combined_entry_type *s = coff->native; | |
2358 | s = s + 1 + s->u.syment.n_numaux; | |
2359 | ||
2360 | /* In XCOFF a debugging symbol can follow the | |
2361 | function symbol. */ | |
2362 | if (s->u.syment.n_scnum == N_DEBUG) | |
2363 | s = s + 1 + s->u.syment.n_numaux; | |
2364 | ||
2365 | /* S should now point to the .bf of the function. */ | |
2366 | if (s->u.syment.n_numaux) | |
2367 | { | |
2368 | /* The linenumber is stored in the auxent. */ | |
2369 | union internal_auxent *a = &((s + 1)->u.auxent); | |
2370 | line_base = a->x_sym.x_misc.x_lnsz.x_lnno; | |
2371 | *line_ptr = line_base; | |
2372 | } | |
2373 | } | |
2374 | } | |
2375 | else | |
2376 | { | |
2377 | if (l->u.offset > offset) | |
2378 | break; | |
2379 | *line_ptr = l->line_number + line_base - 1; | |
2380 | } | |
2381 | l++; | |
2382 | } | |
798c1fb8 ILT |
2383 | |
2384 | /* If we fell off the end of the loop, then assume that this | |
2385 | symbol has no line number info. Otherwise, symbols with no | |
2386 | line number info get reported with the line number of the | |
2387 | last line of the last symbol which does have line number | |
2388 | info. We use 0x100 as a slop to account for cases where the | |
2389 | last line has executable code. */ | |
2390 | if (i >= section->lineno_count | |
2391 | && last_value != 0 | |
2392 | && offset - last_value > 0x100) | |
2393 | { | |
2394 | *functionname_ptr = NULL; | |
2395 | *line_ptr = 0; | |
2396 | } | |
252b5132 RH |
2397 | } |
2398 | ||
2399 | /* Cache the results for the next call. */ | |
2400 | if (sec_data == NULL && section->owner == abfd) | |
2401 | { | |
dc810e39 AM |
2402 | amt = sizeof (struct coff_section_tdata); |
2403 | section->used_by_bfd = (PTR) bfd_zalloc (abfd, amt); | |
252b5132 RH |
2404 | sec_data = (struct coff_section_tdata *) section->used_by_bfd; |
2405 | } | |
2406 | if (sec_data != NULL) | |
2407 | { | |
2408 | sec_data->offset = offset; | |
2409 | sec_data->i = i; | |
2410 | sec_data->function = *functionname_ptr; | |
2411 | sec_data->line_base = line_base; | |
2412 | } | |
2413 | ||
b34976b6 | 2414 | return TRUE; |
252b5132 RH |
2415 | } |
2416 | ||
2417 | int | |
2418 | coff_sizeof_headers (abfd, reloc) | |
2419 | bfd *abfd; | |
b34976b6 | 2420 | bfd_boolean reloc; |
252b5132 RH |
2421 | { |
2422 | size_t size; | |
2423 | ||
82e51918 | 2424 | if (! reloc) |
252b5132 RH |
2425 | { |
2426 | size = bfd_coff_filhsz (abfd) + bfd_coff_aoutsz (abfd); | |
2427 | } | |
2428 | else | |
2429 | { | |
2430 | size = bfd_coff_filhsz (abfd); | |
2431 | } | |
2432 | ||
2433 | size += abfd->section_count * bfd_coff_scnhsz (abfd); | |
2434 | return size; | |
2435 | } | |
2436 | ||
2437 | /* Change the class of a coff symbol held by BFD. */ | |
b34976b6 | 2438 | bfd_boolean |
252b5132 RH |
2439 | bfd_coff_set_symbol_class (abfd, symbol, class) |
2440 | bfd * abfd; | |
2441 | asymbol * symbol; | |
2442 | unsigned int class; | |
2443 | { | |
2444 | coff_symbol_type * csym; | |
2445 | ||
2446 | csym = coff_symbol_from (abfd, symbol); | |
2447 | if (csym == NULL) | |
2448 | { | |
2449 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 2450 | return FALSE; |
252b5132 RH |
2451 | } |
2452 | else if (csym->native == NULL) | |
2453 | { | |
2454 | /* This is an alien symbol which no native coff backend data. | |
2455 | We cheat here by creating a fake native entry for it and | |
2456 | then filling in the class. This code is based on that in | |
2457 | coff_write_alien_symbol(). */ | |
244148ad | 2458 | |
252b5132 | 2459 | combined_entry_type * native; |
dc810e39 | 2460 | bfd_size_type amt = sizeof (* native); |
252b5132 | 2461 | |
9bab7074 | 2462 | native = (combined_entry_type *) bfd_zalloc (abfd, amt); |
252b5132 | 2463 | if (native == NULL) |
b34976b6 | 2464 | return FALSE; |
252b5132 | 2465 | |
252b5132 RH |
2466 | native->u.syment.n_type = T_NULL; |
2467 | native->u.syment.n_sclass = class; | |
244148ad | 2468 | |
252b5132 RH |
2469 | if (bfd_is_und_section (symbol->section)) |
2470 | { | |
2471 | native->u.syment.n_scnum = N_UNDEF; | |
2472 | native->u.syment.n_value = symbol->value; | |
2473 | } | |
2474 | else if (bfd_is_com_section (symbol->section)) | |
2475 | { | |
2476 | native->u.syment.n_scnum = N_UNDEF; | |
2477 | native->u.syment.n_value = symbol->value; | |
2478 | } | |
2479 | else | |
2480 | { | |
2481 | native->u.syment.n_scnum = | |
2482 | symbol->section->output_section->target_index; | |
2483 | native->u.syment.n_value = (symbol->value | |
2484 | + symbol->section->output_offset); | |
2485 | if (! obj_pe (abfd)) | |
2486 | native->u.syment.n_value += symbol->section->output_section->vma; | |
244148ad | 2487 | |
08da05b0 | 2488 | /* Copy the any flags from the file header into the symbol. |
252b5132 RH |
2489 | FIXME: Why? */ |
2490 | native->u.syment.n_flags = bfd_asymbol_bfd (& csym->symbol)->flags; | |
2491 | } | |
244148ad | 2492 | |
252b5132 RH |
2493 | csym->native = native; |
2494 | } | |
2495 | else | |
2496 | { | |
2497 | csym->native->u.syment.n_sclass = class; | |
2498 | } | |
244148ad | 2499 | |
b34976b6 | 2500 | return TRUE; |
252b5132 | 2501 | } |