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, |
88183869 | 3 | 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009 |
252b5132 RH |
4 | Free Software Foundation, Inc. |
5 | Written by Cygnus Support. | |
6 | ||
c8e7bf0d | 7 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 8 | |
c8e7bf0d NC |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c8e7bf0d | 12 | (at your option) any later version. |
252b5132 | 13 | |
c8e7bf0d NC |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
252b5132 | 18 | |
c8e7bf0d NC |
19 | You should have received a copy of the GNU General Public License |
20 | along with this program; if not, write to the Free Software | |
cd123cb7 NC |
21 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
22 | MA 02110-1301, USA. */ | |
252b5132 RH |
23 | |
24 | /* Most of this hacked by Steve Chamberlain, sac@cygnus.com. | |
25 | Split out of coffcode.h by Ian Taylor, ian@cygnus.com. */ | |
26 | ||
27 | /* This file contains COFF code that is not dependent on any | |
28 | particular COFF target. There is only one version of this file in | |
29 | libbfd.a, so no target specific code may be put in here. Or, to | |
30 | put it another way, | |
31 | ||
32 | ********** DO NOT PUT TARGET SPECIFIC CODE IN THIS FILE ********** | |
33 | ||
34 | If you need to add some target specific behaviour, add a new hook | |
35 | function to bfd_coff_backend_data. | |
36 | ||
37 | Some of these functions are also called by the ECOFF routines. | |
38 | Those functions may not use any COFF specific information, such as | |
39 | coff_data (abfd). */ | |
40 | ||
252b5132 | 41 | #include "sysdep.h" |
3db64b00 | 42 | #include "bfd.h" |
252b5132 RH |
43 | #include "libbfd.h" |
44 | #include "coff/internal.h" | |
45 | #include "libcoff.h" | |
46 | ||
252b5132 RH |
47 | /* Take a section header read from a coff file (in HOST byte order), |
48 | and make a BFD "section" out of it. This is used by ECOFF. */ | |
c8e7bf0d | 49 | |
b34976b6 | 50 | static bfd_boolean |
c8e7bf0d NC |
51 | make_a_section_from_file (bfd *abfd, |
52 | struct internal_scnhdr *hdr, | |
53 | unsigned int target_index) | |
252b5132 RH |
54 | { |
55 | asection *return_section; | |
56 | char *name; | |
b34976b6 | 57 | bfd_boolean result = TRUE; |
7c8ca0e4 | 58 | flagword flags; |
252b5132 RH |
59 | |
60 | name = NULL; | |
61 | ||
88183869 DK |
62 | /* Handle long section names as in PE. On reading, we want to |
63 | accept long names if the format permits them at all, regardless | |
64 | of the current state of the flag that dictates if we would generate | |
65 | them in outputs; this construct checks if that is the case by | |
66 | attempting to set the flag, without changing its state; the call | |
67 | will fail for formats that do not support long names at all. */ | |
68 | if (bfd_coff_set_long_section_names (abfd, bfd_coff_long_section_names (abfd)) | |
252b5132 RH |
69 | && hdr->s_name[0] == '/') |
70 | { | |
71 | char buf[SCNNMLEN]; | |
72 | long strindex; | |
73 | char *p; | |
74 | const char *strings; | |
75 | ||
76 | memcpy (buf, hdr->s_name + 1, SCNNMLEN - 1); | |
77 | buf[SCNNMLEN - 1] = '\0'; | |
78 | strindex = strtol (buf, &p, 10); | |
79 | if (*p == '\0' && strindex >= 0) | |
80 | { | |
81 | strings = _bfd_coff_read_string_table (abfd); | |
82 | if (strings == NULL) | |
b34976b6 | 83 | return FALSE; |
252b5132 RH |
84 | /* FIXME: For extra safety, we should make sure that |
85 | strindex does not run us past the end, but right now we | |
86 | don't know the length of the string table. */ | |
87 | strings += strindex; | |
dc810e39 | 88 | name = bfd_alloc (abfd, (bfd_size_type) strlen (strings) + 1); |
252b5132 | 89 | if (name == NULL) |
b34976b6 | 90 | return FALSE; |
252b5132 RH |
91 | strcpy (name, strings); |
92 | } | |
93 | } | |
94 | ||
95 | if (name == NULL) | |
96 | { | |
97 | /* Assorted wastage to null-terminate the name, thanks AT&T! */ | |
dc810e39 | 98 | name = bfd_alloc (abfd, (bfd_size_type) sizeof (hdr->s_name) + 1); |
252b5132 | 99 | if (name == NULL) |
b34976b6 | 100 | return FALSE; |
252b5132 RH |
101 | strncpy (name, (char *) &hdr->s_name[0], sizeof (hdr->s_name)); |
102 | name[sizeof (hdr->s_name)] = 0; | |
103 | } | |
104 | ||
105 | return_section = bfd_make_section_anyway (abfd, name); | |
106 | if (return_section == NULL) | |
b34976b6 | 107 | return FALSE; |
252b5132 RH |
108 | |
109 | return_section->vma = hdr->s_vaddr; | |
110 | return_section->lma = hdr->s_paddr; | |
eea6121a | 111 | return_section->size = hdr->s_size; |
252b5132 RH |
112 | return_section->filepos = hdr->s_scnptr; |
113 | return_section->rel_filepos = hdr->s_relptr; | |
114 | return_section->reloc_count = hdr->s_nreloc; | |
115 | ||
116 | bfd_coff_set_alignment_hook (abfd, return_section, hdr); | |
117 | ||
118 | return_section->line_filepos = hdr->s_lnnoptr; | |
119 | ||
120 | return_section->lineno_count = hdr->s_nlnno; | |
121 | return_section->userdata = NULL; | |
c8e7bf0d | 122 | return_section->next = NULL; |
252b5132 | 123 | return_section->target_index = target_index; |
7c8ca0e4 NC |
124 | |
125 | if (! bfd_coff_styp_to_sec_flags_hook (abfd, hdr, name, return_section, | |
126 | & flags)) | |
b34976b6 | 127 | result = FALSE; |
dc810e39 | 128 | |
7c8ca0e4 | 129 | return_section->flags = flags; |
252b5132 RH |
130 | |
131 | /* At least on i386-coff, the line number count for a shared library | |
132 | section must be ignored. */ | |
133 | if ((return_section->flags & SEC_COFF_SHARED_LIBRARY) != 0) | |
134 | return_section->lineno_count = 0; | |
135 | ||
136 | if (hdr->s_nreloc != 0) | |
137 | return_section->flags |= SEC_RELOC; | |
c8e7bf0d | 138 | /* FIXME: should this check 'hdr->s_size > 0'. */ |
252b5132 RH |
139 | if (hdr->s_scnptr != 0) |
140 | return_section->flags |= SEC_HAS_CONTENTS; | |
7c8ca0e4 NC |
141 | |
142 | return result; | |
252b5132 RH |
143 | } |
144 | ||
145 | /* Read in a COFF object and make it into a BFD. This is used by | |
146 | ECOFF as well. */ | |
147 | ||
148 | static const bfd_target * | |
c8e7bf0d NC |
149 | coff_real_object_p (bfd *abfd, |
150 | unsigned nscns, | |
151 | struct internal_filehdr *internal_f, | |
152 | struct internal_aouthdr *internal_a) | |
252b5132 RH |
153 | { |
154 | flagword oflags = abfd->flags; | |
155 | bfd_vma ostart = bfd_get_start_address (abfd); | |
c8e7bf0d NC |
156 | void * tdata; |
157 | void * tdata_save; | |
158 | bfd_size_type readsize; /* Length of file_info. */ | |
252b5132 RH |
159 | unsigned int scnhsz; |
160 | char *external_sections; | |
161 | ||
162 | if (!(internal_f->f_flags & F_RELFLG)) | |
163 | abfd->flags |= HAS_RELOC; | |
164 | if ((internal_f->f_flags & F_EXEC)) | |
165 | abfd->flags |= EXEC_P; | |
166 | if (!(internal_f->f_flags & F_LNNO)) | |
167 | abfd->flags |= HAS_LINENO; | |
168 | if (!(internal_f->f_flags & F_LSYMS)) | |
169 | abfd->flags |= HAS_LOCALS; | |
170 | ||
171 | /* FIXME: How can we set D_PAGED correctly? */ | |
172 | if ((internal_f->f_flags & F_EXEC) != 0) | |
173 | abfd->flags |= D_PAGED; | |
174 | ||
175 | bfd_get_symcount (abfd) = internal_f->f_nsyms; | |
176 | if (internal_f->f_nsyms) | |
177 | abfd->flags |= HAS_SYMS; | |
178 | ||
179 | if (internal_a != (struct internal_aouthdr *) NULL) | |
180 | bfd_get_start_address (abfd) = internal_a->entry; | |
181 | else | |
182 | bfd_get_start_address (abfd) = 0; | |
183 | ||
184 | /* Set up the tdata area. ECOFF uses its own routine, and overrides | |
185 | abfd->flags. */ | |
487e54f2 | 186 | tdata_save = abfd->tdata.any; |
c8e7bf0d | 187 | tdata = bfd_coff_mkobject_hook (abfd, (void *) internal_f, (void *) internal_a); |
252b5132 | 188 | if (tdata == NULL) |
487e54f2 | 189 | goto fail2; |
252b5132 RH |
190 | |
191 | scnhsz = bfd_coff_scnhsz (abfd); | |
dc810e39 | 192 | readsize = (bfd_size_type) nscns * scnhsz; |
c8e7bf0d | 193 | external_sections = bfd_alloc (abfd, readsize); |
252b5132 RH |
194 | if (!external_sections) |
195 | goto fail; | |
196 | ||
c8e7bf0d | 197 | if (bfd_bread ((void *) external_sections, readsize, abfd) != readsize) |
252b5132 RH |
198 | goto fail; |
199 | ||
363d7b14 | 200 | /* Set the arch/mach *before* swapping in sections; section header swapping |
244148ad | 201 | may depend on arch/mach info. */ |
c8e7bf0d | 202 | if (! bfd_coff_set_arch_mach_hook (abfd, (void *) internal_f)) |
363d7b14 TW |
203 | goto fail; |
204 | ||
e16bb312 | 205 | /* Now copy data as required; construct all asections etc. */ |
252b5132 RH |
206 | if (nscns != 0) |
207 | { | |
208 | unsigned int i; | |
209 | for (i = 0; i < nscns; i++) | |
210 | { | |
211 | struct internal_scnhdr tmp; | |
212 | bfd_coff_swap_scnhdr_in (abfd, | |
c8e7bf0d NC |
213 | (void *) (external_sections + i * scnhsz), |
214 | (void *) & tmp); | |
252b5132 RH |
215 | if (! make_a_section_from_file (abfd, &tmp, i + 1)) |
216 | goto fail; | |
217 | } | |
218 | } | |
219 | ||
252b5132 RH |
220 | return abfd->xvec; |
221 | ||
222 | fail: | |
223 | bfd_release (abfd, tdata); | |
487e54f2 AM |
224 | fail2: |
225 | abfd->tdata.any = tdata_save; | |
252b5132 RH |
226 | abfd->flags = oflags; |
227 | bfd_get_start_address (abfd) = ostart; | |
228 | return (const bfd_target *) NULL; | |
229 | } | |
230 | ||
231 | /* Turn a COFF file into a BFD, but fail with bfd_error_wrong_format if it is | |
232 | not a COFF file. This is also used by ECOFF. */ | |
233 | ||
234 | const bfd_target * | |
c8e7bf0d | 235 | coff_object_p (bfd *abfd) |
252b5132 | 236 | { |
dc810e39 AM |
237 | bfd_size_type filhsz; |
238 | bfd_size_type aoutsz; | |
239 | unsigned int nscns; | |
c8e7bf0d | 240 | void * filehdr; |
252b5132 RH |
241 | struct internal_filehdr internal_f; |
242 | struct internal_aouthdr internal_a; | |
243 | ||
c8e7bf0d | 244 | /* Figure out how much to read. */ |
252b5132 RH |
245 | filhsz = bfd_coff_filhsz (abfd); |
246 | aoutsz = bfd_coff_aoutsz (abfd); | |
247 | ||
248 | filehdr = bfd_alloc (abfd, filhsz); | |
249 | if (filehdr == NULL) | |
487e54f2 | 250 | return NULL; |
dc810e39 | 251 | if (bfd_bread (filehdr, filhsz, abfd) != filhsz) |
252b5132 RH |
252 | { |
253 | if (bfd_get_error () != bfd_error_system_call) | |
254 | bfd_set_error (bfd_error_wrong_format); | |
487e54f2 AM |
255 | bfd_release (abfd, filehdr); |
256 | return NULL; | |
252b5132 RH |
257 | } |
258 | bfd_coff_swap_filehdr_in (abfd, filehdr, &internal_f); | |
259 | bfd_release (abfd, filehdr); | |
260 | ||
b8819ab2 NC |
261 | /* The XCOFF format has two sizes for the f_opthdr. SMALL_AOUTSZ |
262 | (less than aoutsz) used in object files and AOUTSZ (equal to | |
263 | aoutsz) in executables. The bfd_coff_swap_aouthdr_in function | |
264 | expects this header to be aoutsz bytes in length, so we use that | |
265 | value in the call to bfd_alloc below. But we must be careful to | |
266 | only read in f_opthdr bytes in the call to bfd_bread. We should | |
267 | also attempt to catch corrupt or non-COFF binaries with a strange | |
268 | value for f_opthdr. */ | |
82e51918 | 269 | if (! bfd_coff_bad_format_hook (abfd, &internal_f) |
95f7d9f7 | 270 | || internal_f.f_opthdr > aoutsz) |
252b5132 RH |
271 | { |
272 | bfd_set_error (bfd_error_wrong_format); | |
487e54f2 | 273 | return NULL; |
252b5132 RH |
274 | } |
275 | nscns = internal_f.f_nscns; | |
276 | ||
277 | if (internal_f.f_opthdr) | |
278 | { | |
c8e7bf0d | 279 | void * opthdr; |
252b5132 RH |
280 | |
281 | opthdr = bfd_alloc (abfd, aoutsz); | |
282 | if (opthdr == NULL) | |
487e54f2 | 283 | return NULL; |
dc810e39 | 284 | if (bfd_bread (opthdr, (bfd_size_type) internal_f.f_opthdr, abfd) |
252b5132 RH |
285 | != internal_f.f_opthdr) |
286 | { | |
487e54f2 AM |
287 | bfd_release (abfd, opthdr); |
288 | return NULL; | |
252b5132 | 289 | } |
c8e7bf0d | 290 | bfd_coff_swap_aouthdr_in (abfd, opthdr, (void *) &internal_a); |
487e54f2 | 291 | bfd_release (abfd, opthdr); |
252b5132 RH |
292 | } |
293 | ||
294 | return coff_real_object_p (abfd, nscns, &internal_f, | |
295 | (internal_f.f_opthdr != 0 | |
296 | ? &internal_a | |
297 | : (struct internal_aouthdr *) NULL)); | |
298 | } | |
299 | ||
300 | /* Get the BFD section from a COFF symbol section number. */ | |
301 | ||
302 | asection * | |
c8e7bf0d | 303 | coff_section_from_bfd_index (bfd *abfd, int index) |
252b5132 | 304 | { |
198beae2 | 305 | struct bfd_section *answer = abfd->sections; |
252b5132 RH |
306 | |
307 | if (index == N_ABS) | |
308 | return bfd_abs_section_ptr; | |
309 | if (index == N_UNDEF) | |
310 | return bfd_und_section_ptr; | |
311 | if (index == N_DEBUG) | |
312 | return bfd_abs_section_ptr; | |
313 | ||
314 | while (answer) | |
315 | { | |
316 | if (answer->target_index == index) | |
317 | return answer; | |
318 | answer = answer->next; | |
319 | } | |
320 | ||
321 | /* We should not reach this point, but the SCO 3.2v4 /lib/libc_s.a | |
322 | has a bad symbol table in biglitpow.o. */ | |
323 | return bfd_und_section_ptr; | |
324 | } | |
325 | ||
326 | /* Get the upper bound of a COFF symbol table. */ | |
327 | ||
328 | long | |
c8e7bf0d | 329 | coff_get_symtab_upper_bound (bfd *abfd) |
252b5132 RH |
330 | { |
331 | if (!bfd_coff_slurp_symbol_table (abfd)) | |
332 | return -1; | |
333 | ||
334 | return (bfd_get_symcount (abfd) + 1) * (sizeof (coff_symbol_type *)); | |
335 | } | |
336 | ||
252b5132 RH |
337 | /* Canonicalize a COFF symbol table. */ |
338 | ||
339 | long | |
c8e7bf0d | 340 | coff_canonicalize_symtab (bfd *abfd, asymbol **alocation) |
252b5132 RH |
341 | { |
342 | unsigned int counter; | |
343 | coff_symbol_type *symbase; | |
344 | coff_symbol_type **location = (coff_symbol_type **) alocation; | |
345 | ||
346 | if (!bfd_coff_slurp_symbol_table (abfd)) | |
347 | return -1; | |
348 | ||
349 | symbase = obj_symbols (abfd); | |
350 | counter = bfd_get_symcount (abfd); | |
351 | while (counter-- > 0) | |
352 | *location++ = symbase++; | |
353 | ||
354 | *location = NULL; | |
355 | ||
356 | return bfd_get_symcount (abfd); | |
357 | } | |
358 | ||
359 | /* Get the name of a symbol. The caller must pass in a buffer of size | |
360 | >= SYMNMLEN + 1. */ | |
361 | ||
362 | const char * | |
c8e7bf0d NC |
363 | _bfd_coff_internal_syment_name (bfd *abfd, |
364 | const struct internal_syment *sym, | |
365 | char *buf) | |
252b5132 RH |
366 | { |
367 | /* FIXME: It's not clear this will work correctly if sizeof | |
368 | (_n_zeroes) != 4. */ | |
369 | if (sym->_n._n_n._n_zeroes != 0 | |
370 | || sym->_n._n_n._n_offset == 0) | |
371 | { | |
372 | memcpy (buf, sym->_n._n_name, SYMNMLEN); | |
373 | buf[SYMNMLEN] = '\0'; | |
374 | return buf; | |
375 | } | |
376 | else | |
377 | { | |
378 | const char *strings; | |
379 | ||
380 | BFD_ASSERT (sym->_n._n_n._n_offset >= STRING_SIZE_SIZE); | |
381 | strings = obj_coff_strings (abfd); | |
382 | if (strings == NULL) | |
383 | { | |
384 | strings = _bfd_coff_read_string_table (abfd); | |
385 | if (strings == NULL) | |
386 | return NULL; | |
387 | } | |
388 | return strings + sym->_n._n_n._n_offset; | |
389 | } | |
390 | } | |
391 | ||
392 | /* Read in and swap the relocs. This returns a buffer holding the | |
b34976b6 | 393 | relocs for section SEC in file ABFD. If CACHE is TRUE and |
252b5132 RH |
394 | INTERNAL_RELOCS is NULL, the relocs read in will be saved in case |
395 | the function is called again. If EXTERNAL_RELOCS is not NULL, it | |
396 | is a buffer large enough to hold the unswapped relocs. If | |
397 | INTERNAL_RELOCS is not NULL, it is a buffer large enough to hold | |
b34976b6 | 398 | the swapped relocs. If REQUIRE_INTERNAL is TRUE, then the return |
252b5132 RH |
399 | value must be INTERNAL_RELOCS. The function returns NULL on error. */ |
400 | ||
401 | struct internal_reloc * | |
c8e7bf0d NC |
402 | _bfd_coff_read_internal_relocs (bfd *abfd, |
403 | asection *sec, | |
404 | bfd_boolean cache, | |
405 | bfd_byte *external_relocs, | |
406 | bfd_boolean require_internal, | |
407 | struct internal_reloc *internal_relocs) | |
252b5132 RH |
408 | { |
409 | bfd_size_type relsz; | |
410 | bfd_byte *free_external = NULL; | |
411 | struct internal_reloc *free_internal = NULL; | |
412 | bfd_byte *erel; | |
413 | bfd_byte *erel_end; | |
414 | struct internal_reloc *irel; | |
dc810e39 | 415 | bfd_size_type amt; |
252b5132 | 416 | |
9d7038d3 MS |
417 | if (sec->reloc_count == 0) |
418 | return internal_relocs; /* Nothing to do. */ | |
419 | ||
252b5132 RH |
420 | if (coff_section_data (abfd, sec) != NULL |
421 | && coff_section_data (abfd, sec)->relocs != NULL) | |
422 | { | |
423 | if (! require_internal) | |
424 | return coff_section_data (abfd, sec)->relocs; | |
425 | memcpy (internal_relocs, coff_section_data (abfd, sec)->relocs, | |
426 | sec->reloc_count * sizeof (struct internal_reloc)); | |
427 | return internal_relocs; | |
428 | } | |
429 | ||
430 | relsz = bfd_coff_relsz (abfd); | |
431 | ||
dc810e39 | 432 | amt = sec->reloc_count * relsz; |
252b5132 RH |
433 | if (external_relocs == NULL) |
434 | { | |
c8e7bf0d | 435 | free_external = bfd_malloc (amt); |
9d7038d3 | 436 | if (free_external == NULL) |
252b5132 RH |
437 | goto error_return; |
438 | external_relocs = free_external; | |
439 | } | |
440 | ||
441 | if (bfd_seek (abfd, sec->rel_filepos, SEEK_SET) != 0 | |
dc810e39 | 442 | || bfd_bread (external_relocs, amt, abfd) != amt) |
252b5132 RH |
443 | goto error_return; |
444 | ||
445 | if (internal_relocs == NULL) | |
446 | { | |
dc810e39 AM |
447 | amt = sec->reloc_count; |
448 | amt *= sizeof (struct internal_reloc); | |
c8e7bf0d | 449 | free_internal = bfd_malloc (amt); |
9d7038d3 | 450 | if (free_internal == NULL) |
252b5132 RH |
451 | goto error_return; |
452 | internal_relocs = free_internal; | |
453 | } | |
454 | ||
455 | /* Swap in the relocs. */ | |
456 | erel = external_relocs; | |
457 | erel_end = erel + relsz * sec->reloc_count; | |
458 | irel = internal_relocs; | |
459 | for (; erel < erel_end; erel += relsz, irel++) | |
c8e7bf0d | 460 | bfd_coff_swap_reloc_in (abfd, (void *) erel, (void *) irel); |
252b5132 RH |
461 | |
462 | if (free_external != NULL) | |
463 | { | |
464 | free (free_external); | |
465 | free_external = NULL; | |
466 | } | |
467 | ||
9ee2139f | 468 | if (cache && free_internal != NULL) |
252b5132 | 469 | { |
9ee2139f | 470 | if (coff_section_data (abfd, sec) == NULL) |
252b5132 | 471 | { |
9ee2139f MS |
472 | amt = sizeof (struct coff_section_tdata); |
473 | sec->used_by_bfd = bfd_zalloc (abfd, amt); | |
474 | if (sec->used_by_bfd == NULL) | |
475 | goto error_return; | |
476 | coff_section_data (abfd, sec)->contents = NULL; | |
252b5132 | 477 | } |
9ee2139f | 478 | coff_section_data (abfd, sec)->relocs = free_internal; |
252b5132 RH |
479 | } |
480 | ||
481 | return internal_relocs; | |
482 | ||
483 | error_return: | |
484 | if (free_external != NULL) | |
485 | free (free_external); | |
486 | if (free_internal != NULL) | |
487 | free (free_internal); | |
488 | return NULL; | |
489 | } | |
490 | ||
491 | /* Set lineno_count for the output sections of a COFF file. */ | |
492 | ||
493 | int | |
c8e7bf0d | 494 | coff_count_linenumbers (bfd *abfd) |
252b5132 RH |
495 | { |
496 | unsigned int limit = bfd_get_symcount (abfd); | |
497 | unsigned int i; | |
498 | int total = 0; | |
499 | asymbol **p; | |
500 | asection *s; | |
501 | ||
502 | if (limit == 0) | |
503 | { | |
504 | /* This may be from the backend linker, in which case the | |
505 | lineno_count in the sections is correct. */ | |
506 | for (s = abfd->sections; s != NULL; s = s->next) | |
507 | total += s->lineno_count; | |
508 | return total; | |
509 | } | |
510 | ||
511 | for (s = abfd->sections; s != NULL; s = s->next) | |
512 | BFD_ASSERT (s->lineno_count == 0); | |
513 | ||
514 | for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) | |
515 | { | |
516 | asymbol *q_maybe = *p; | |
517 | ||
9bd09e22 | 518 | if (bfd_family_coff (bfd_asymbol_bfd (q_maybe))) |
252b5132 RH |
519 | { |
520 | coff_symbol_type *q = coffsymbol (q_maybe); | |
521 | ||
522 | /* The AIX 4.1 compiler can sometimes generate line numbers | |
523 | attached to debugging symbols. We try to simply ignore | |
524 | those here. */ | |
525 | if (q->lineno != NULL | |
526 | && q->symbol.section->owner != NULL) | |
527 | { | |
528 | /* This symbol has line numbers. Increment the owning | |
529 | section's linenumber count. */ | |
530 | alent *l = q->lineno; | |
531 | ||
84c254c6 | 532 | do |
252b5132 | 533 | { |
84c254c6 | 534 | asection * sec = q->symbol.section->output_section; |
b34976b6 | 535 | |
84c254c6 NC |
536 | /* Do not try to update fields in read-only sections. */ |
537 | if (! bfd_is_const_section (sec)) | |
538 | sec->lineno_count ++; | |
539 | ||
252b5132 | 540 | ++total; |
252b5132 RH |
541 | ++l; |
542 | } | |
84c254c6 | 543 | while (l->line_number != 0); |
252b5132 RH |
544 | } |
545 | } | |
546 | } | |
547 | ||
548 | return total; | |
549 | } | |
550 | ||
551 | /* Takes a bfd and a symbol, returns a pointer to the coff specific | |
552 | area of the symbol if there is one. */ | |
553 | ||
252b5132 | 554 | coff_symbol_type * |
c8e7bf0d NC |
555 | coff_symbol_from (bfd *ignore_abfd ATTRIBUTE_UNUSED, |
556 | asymbol *symbol) | |
252b5132 | 557 | { |
9bd09e22 | 558 | if (!bfd_family_coff (bfd_asymbol_bfd (symbol))) |
252b5132 RH |
559 | return (coff_symbol_type *) NULL; |
560 | ||
561 | if (bfd_asymbol_bfd (symbol)->tdata.coff_obj_data == (coff_data_type *) NULL) | |
562 | return (coff_symbol_type *) NULL; | |
563 | ||
564 | return (coff_symbol_type *) symbol; | |
565 | } | |
566 | ||
567 | static void | |
c8e7bf0d NC |
568 | fixup_symbol_value (bfd *abfd, |
569 | coff_symbol_type *coff_symbol_ptr, | |
570 | struct internal_syment *syment) | |
252b5132 | 571 | { |
c8e7bf0d | 572 | /* Normalize the symbol flags. */ |
ac38308c MS |
573 | if (coff_symbol_ptr->symbol.section |
574 | && bfd_is_com_section (coff_symbol_ptr->symbol.section)) | |
252b5132 | 575 | { |
c8e7bf0d | 576 | /* A common symbol is undefined with a value. */ |
252b5132 RH |
577 | syment->n_scnum = N_UNDEF; |
578 | syment->n_value = coff_symbol_ptr->symbol.value; | |
579 | } | |
703153b5 ILT |
580 | else if ((coff_symbol_ptr->symbol.flags & BSF_DEBUGGING) != 0 |
581 | && (coff_symbol_ptr->symbol.flags & BSF_DEBUGGING_RELOC) == 0) | |
252b5132 RH |
582 | { |
583 | syment->n_value = coff_symbol_ptr->symbol.value; | |
584 | } | |
585 | else if (bfd_is_und_section (coff_symbol_ptr->symbol.section)) | |
586 | { | |
587 | syment->n_scnum = N_UNDEF; | |
588 | syment->n_value = 0; | |
589 | } | |
7bb9db4d | 590 | /* FIXME: Do we need to handle the absolute section here? */ |
252b5132 RH |
591 | else |
592 | { | |
593 | if (coff_symbol_ptr->symbol.section) | |
594 | { | |
595 | syment->n_scnum = | |
596 | coff_symbol_ptr->symbol.section->output_section->target_index; | |
597 | ||
598 | syment->n_value = (coff_symbol_ptr->symbol.value | |
599 | + coff_symbol_ptr->symbol.section->output_offset); | |
600 | if (! obj_pe (abfd)) | |
34cbe64e TW |
601 | { |
602 | syment->n_value += (syment->n_sclass == C_STATLAB) | |
603 | ? coff_symbol_ptr->symbol.section->output_section->lma | |
604 | : coff_symbol_ptr->symbol.section->output_section->vma; | |
605 | } | |
252b5132 RH |
606 | } |
607 | else | |
608 | { | |
609 | BFD_ASSERT (0); | |
610 | /* This can happen, but I don't know why yet (steve@cygnus.com) */ | |
611 | syment->n_scnum = N_ABS; | |
612 | syment->n_value = coff_symbol_ptr->symbol.value; | |
613 | } | |
614 | } | |
615 | } | |
616 | ||
617 | /* Run through all the symbols in the symbol table and work out what | |
618 | their indexes into the symbol table will be when output. | |
619 | ||
620 | Coff requires that each C_FILE symbol points to the next one in the | |
621 | chain, and that the last one points to the first external symbol. We | |
622 | do that here too. */ | |
623 | ||
b34976b6 | 624 | bfd_boolean |
c8e7bf0d | 625 | coff_renumber_symbols (bfd *bfd_ptr, int *first_undef) |
252b5132 RH |
626 | { |
627 | unsigned int symbol_count = bfd_get_symcount (bfd_ptr); | |
628 | asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols; | |
629 | unsigned int native_index = 0; | |
c8e7bf0d | 630 | struct internal_syment *last_file = NULL; |
252b5132 RH |
631 | unsigned int symbol_index; |
632 | ||
633 | /* COFF demands that undefined symbols come after all other symbols. | |
634 | Since we don't need to impose this extra knowledge on all our | |
635 | client programs, deal with that here. Sort the symbol table; | |
636 | just move the undefined symbols to the end, leaving the rest | |
637 | alone. The O'Reilly book says that defined global symbols come | |
638 | at the end before the undefined symbols, so we do that here as | |
639 | well. */ | |
640 | /* @@ Do we have some condition we could test for, so we don't always | |
641 | have to do this? I don't think relocatability is quite right, but | |
642 | I'm not certain. [raeburn:19920508.1711EST] */ | |
643 | { | |
644 | asymbol **newsyms; | |
645 | unsigned int i; | |
dc810e39 | 646 | bfd_size_type amt; |
252b5132 | 647 | |
dc810e39 | 648 | amt = sizeof (asymbol *) * ((bfd_size_type) symbol_count + 1); |
c8e7bf0d | 649 | newsyms = bfd_alloc (bfd_ptr, amt); |
252b5132 | 650 | if (!newsyms) |
b34976b6 | 651 | return FALSE; |
252b5132 RH |
652 | bfd_ptr->outsymbols = newsyms; |
653 | for (i = 0; i < symbol_count; i++) | |
654 | if ((symbol_ptr_ptr[i]->flags & BSF_NOT_AT_END) != 0 | |
655 | || (!bfd_is_und_section (symbol_ptr_ptr[i]->section) | |
656 | && !bfd_is_com_section (symbol_ptr_ptr[i]->section) | |
657 | && ((symbol_ptr_ptr[i]->flags & BSF_FUNCTION) != 0 | |
658 | || ((symbol_ptr_ptr[i]->flags & (BSF_GLOBAL | BSF_WEAK)) | |
659 | == 0)))) | |
660 | *newsyms++ = symbol_ptr_ptr[i]; | |
661 | ||
662 | for (i = 0; i < symbol_count; i++) | |
663 | if ((symbol_ptr_ptr[i]->flags & BSF_NOT_AT_END) == 0 | |
664 | && !bfd_is_und_section (symbol_ptr_ptr[i]->section) | |
665 | && (bfd_is_com_section (symbol_ptr_ptr[i]->section) | |
666 | || ((symbol_ptr_ptr[i]->flags & BSF_FUNCTION) == 0 | |
667 | && ((symbol_ptr_ptr[i]->flags & (BSF_GLOBAL | BSF_WEAK)) | |
668 | != 0)))) | |
669 | *newsyms++ = symbol_ptr_ptr[i]; | |
670 | ||
671 | *first_undef = newsyms - bfd_ptr->outsymbols; | |
672 | ||
673 | for (i = 0; i < symbol_count; i++) | |
674 | if ((symbol_ptr_ptr[i]->flags & BSF_NOT_AT_END) == 0 | |
675 | && bfd_is_und_section (symbol_ptr_ptr[i]->section)) | |
676 | *newsyms++ = symbol_ptr_ptr[i]; | |
677 | *newsyms = (asymbol *) NULL; | |
678 | symbol_ptr_ptr = bfd_ptr->outsymbols; | |
679 | } | |
680 | ||
681 | for (symbol_index = 0; symbol_index < symbol_count; symbol_index++) | |
682 | { | |
683 | coff_symbol_type *coff_symbol_ptr = coff_symbol_from (bfd_ptr, symbol_ptr_ptr[symbol_index]); | |
244148ad | 684 | symbol_ptr_ptr[symbol_index]->udata.i = symbol_index; |
252b5132 RH |
685 | if (coff_symbol_ptr && coff_symbol_ptr->native) |
686 | { | |
687 | combined_entry_type *s = coff_symbol_ptr->native; | |
688 | int i; | |
689 | ||
690 | if (s->u.syment.n_sclass == C_FILE) | |
691 | { | |
c8e7bf0d | 692 | if (last_file != NULL) |
252b5132 RH |
693 | last_file->n_value = native_index; |
694 | last_file = &(s->u.syment); | |
695 | } | |
696 | else | |
c8e7bf0d NC |
697 | /* Modify the symbol values according to their section and |
698 | type. */ | |
699 | fixup_symbol_value (bfd_ptr, coff_symbol_ptr, &(s->u.syment)); | |
252b5132 | 700 | |
252b5132 RH |
701 | for (i = 0; i < s->u.syment.n_numaux + 1; i++) |
702 | s[i].offset = native_index++; | |
703 | } | |
704 | else | |
c8e7bf0d | 705 | native_index++; |
252b5132 | 706 | } |
c8e7bf0d | 707 | |
252b5132 RH |
708 | obj_conv_table_size (bfd_ptr) = native_index; |
709 | ||
b34976b6 | 710 | return TRUE; |
252b5132 RH |
711 | } |
712 | ||
713 | /* Run thorough the symbol table again, and fix it so that all | |
714 | pointers to entries are changed to the entries' index in the output | |
715 | symbol table. */ | |
716 | ||
717 | void | |
c8e7bf0d | 718 | coff_mangle_symbols (bfd *bfd_ptr) |
252b5132 RH |
719 | { |
720 | unsigned int symbol_count = bfd_get_symcount (bfd_ptr); | |
721 | asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols; | |
722 | unsigned int symbol_index; | |
723 | ||
724 | for (symbol_index = 0; symbol_index < symbol_count; symbol_index++) | |
725 | { | |
726 | coff_symbol_type *coff_symbol_ptr = | |
727 | coff_symbol_from (bfd_ptr, symbol_ptr_ptr[symbol_index]); | |
728 | ||
729 | if (coff_symbol_ptr && coff_symbol_ptr->native) | |
730 | { | |
731 | int i; | |
732 | combined_entry_type *s = coff_symbol_ptr->native; | |
733 | ||
734 | if (s->fix_value) | |
735 | { | |
736 | /* FIXME: We should use a union here. */ | |
dc810e39 | 737 | s->u.syment.n_value = |
d2df793a NC |
738 | (bfd_hostptr_t) ((combined_entry_type *) |
739 | ((bfd_hostptr_t) s->u.syment.n_value))->offset; | |
252b5132 RH |
740 | s->fix_value = 0; |
741 | } | |
742 | if (s->fix_line) | |
743 | { | |
744 | /* The value is the offset into the line number entries | |
745 | for the symbol's section. On output, the symbol's | |
746 | section should be N_DEBUG. */ | |
747 | s->u.syment.n_value = | |
748 | (coff_symbol_ptr->symbol.section->output_section->line_filepos | |
749 | + s->u.syment.n_value * bfd_coff_linesz (bfd_ptr)); | |
750 | coff_symbol_ptr->symbol.section = | |
751 | coff_section_from_bfd_index (bfd_ptr, N_DEBUG); | |
752 | BFD_ASSERT (coff_symbol_ptr->symbol.flags & BSF_DEBUGGING); | |
753 | } | |
754 | for (i = 0; i < s->u.syment.n_numaux; i++) | |
755 | { | |
756 | combined_entry_type *a = s + i + 1; | |
757 | if (a->fix_tag) | |
758 | { | |
759 | a->u.auxent.x_sym.x_tagndx.l = | |
760 | a->u.auxent.x_sym.x_tagndx.p->offset; | |
761 | a->fix_tag = 0; | |
762 | } | |
763 | if (a->fix_end) | |
764 | { | |
765 | a->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l = | |
766 | a->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p->offset; | |
767 | a->fix_end = 0; | |
768 | } | |
769 | if (a->fix_scnlen) | |
770 | { | |
771 | a->u.auxent.x_csect.x_scnlen.l = | |
772 | a->u.auxent.x_csect.x_scnlen.p->offset; | |
773 | a->fix_scnlen = 0; | |
774 | } | |
775 | } | |
776 | } | |
777 | } | |
778 | } | |
779 | ||
780 | static void | |
c8e7bf0d NC |
781 | coff_fix_symbol_name (bfd *abfd, |
782 | asymbol *symbol, | |
783 | combined_entry_type *native, | |
784 | bfd_size_type *string_size_p, | |
785 | asection **debug_string_section_p, | |
786 | bfd_size_type *debug_string_size_p) | |
252b5132 RH |
787 | { |
788 | unsigned int name_length; | |
789 | union internal_auxent *auxent; | |
790 | char *name = (char *) (symbol->name); | |
791 | ||
c8e7bf0d | 792 | if (name == NULL) |
252b5132 | 793 | { |
c8e7bf0d | 794 | /* COFF symbols always have names, so we'll make one up. */ |
252b5132 RH |
795 | symbol->name = "strange"; |
796 | name = (char *) symbol->name; | |
797 | } | |
798 | name_length = strlen (name); | |
799 | ||
800 | if (native->u.syment.n_sclass == C_FILE | |
801 | && native->u.syment.n_numaux > 0) | |
802 | { | |
692b7d62 ILT |
803 | unsigned int filnmlen; |
804 | ||
7f6d05e8 CP |
805 | if (bfd_coff_force_symnames_in_strings (abfd)) |
806 | { | |
244148ad | 807 | native->u.syment._n._n_n._n_offset = |
7f6d05e8 CP |
808 | (*string_size_p + STRING_SIZE_SIZE); |
809 | native->u.syment._n._n_n._n_zeroes = 0; | |
810 | *string_size_p += 6; /* strlen(".file") + 1 */ | |
811 | } | |
812 | else | |
813 | strncpy (native->u.syment._n._n_name, ".file", SYMNMLEN); | |
814 | ||
252b5132 RH |
815 | auxent = &(native + 1)->u.auxent; |
816 | ||
692b7d62 ILT |
817 | filnmlen = bfd_coff_filnmlen (abfd); |
818 | ||
252b5132 RH |
819 | if (bfd_coff_long_filenames (abfd)) |
820 | { | |
692b7d62 | 821 | if (name_length <= filnmlen) |
c8e7bf0d | 822 | strncpy (auxent->x_file.x_fname, name, filnmlen); |
252b5132 RH |
823 | else |
824 | { | |
825 | auxent->x_file.x_n.x_offset = *string_size_p + STRING_SIZE_SIZE; | |
826 | auxent->x_file.x_n.x_zeroes = 0; | |
827 | *string_size_p += name_length + 1; | |
828 | } | |
829 | } | |
830 | else | |
831 | { | |
692b7d62 ILT |
832 | strncpy (auxent->x_file.x_fname, name, filnmlen); |
833 | if (name_length > filnmlen) | |
834 | name[filnmlen] = '\0'; | |
252b5132 RH |
835 | } |
836 | } | |
837 | else | |
838 | { | |
7f6d05e8 | 839 | if (name_length <= SYMNMLEN && !bfd_coff_force_symnames_in_strings (abfd)) |
c8e7bf0d NC |
840 | /* This name will fit into the symbol neatly. */ |
841 | strncpy (native->u.syment._n._n_name, symbol->name, SYMNMLEN); | |
842 | ||
252b5132 RH |
843 | else if (!bfd_coff_symname_in_debug (abfd, &native->u.syment)) |
844 | { | |
845 | native->u.syment._n._n_n._n_offset = (*string_size_p | |
846 | + STRING_SIZE_SIZE); | |
847 | native->u.syment._n._n_n._n_zeroes = 0; | |
848 | *string_size_p += name_length + 1; | |
849 | } | |
850 | else | |
851 | { | |
dc810e39 | 852 | file_ptr filepos; |
7f6d05e8 CP |
853 | bfd_byte buf[4]; |
854 | int prefix_len = bfd_coff_debug_string_prefix_length (abfd); | |
252b5132 RH |
855 | |
856 | /* This name should be written into the .debug section. For | |
857 | some reason each name is preceded by a two byte length | |
858 | and also followed by a null byte. FIXME: We assume that | |
859 | the .debug section has already been created, and that it | |
860 | is large enough. */ | |
861 | if (*debug_string_section_p == (asection *) NULL) | |
862 | *debug_string_section_p = bfd_get_section_by_name (abfd, ".debug"); | |
863 | filepos = bfd_tell (abfd); | |
7f6d05e8 | 864 | if (prefix_len == 4) |
dc810e39 | 865 | bfd_put_32 (abfd, (bfd_vma) (name_length + 1), buf); |
7f6d05e8 | 866 | else |
dc810e39 | 867 | bfd_put_16 (abfd, (bfd_vma) (name_length + 1), buf); |
7f6d05e8 | 868 | |
252b5132 RH |
869 | if (!bfd_set_section_contents (abfd, |
870 | *debug_string_section_p, | |
c8e7bf0d | 871 | (void *) buf, |
252b5132 | 872 | (file_ptr) *debug_string_size_p, |
7f6d05e8 | 873 | (bfd_size_type) prefix_len) |
252b5132 RH |
874 | || !bfd_set_section_contents (abfd, |
875 | *debug_string_section_p, | |
c8e7bf0d | 876 | (void *) symbol->name, |
dc810e39 AM |
877 | (file_ptr) (*debug_string_size_p |
878 | + prefix_len), | |
252b5132 RH |
879 | (bfd_size_type) name_length + 1)) |
880 | abort (); | |
881 | if (bfd_seek (abfd, filepos, SEEK_SET) != 0) | |
882 | abort (); | |
244148ad | 883 | native->u.syment._n._n_n._n_offset = |
7f6d05e8 | 884 | *debug_string_size_p + prefix_len; |
252b5132 | 885 | native->u.syment._n._n_n._n_zeroes = 0; |
7f6d05e8 | 886 | *debug_string_size_p += name_length + 1 + prefix_len; |
252b5132 RH |
887 | } |
888 | } | |
889 | } | |
890 | ||
891 | /* We need to keep track of the symbol index so that when we write out | |
892 | the relocs we can get the index for a symbol. This method is a | |
893 | hack. FIXME. */ | |
894 | ||
895 | #define set_index(symbol, idx) ((symbol)->udata.i = (idx)) | |
896 | ||
897 | /* Write a symbol out to a COFF file. */ | |
898 | ||
b34976b6 | 899 | static bfd_boolean |
c8e7bf0d NC |
900 | coff_write_symbol (bfd *abfd, |
901 | asymbol *symbol, | |
902 | combined_entry_type *native, | |
903 | bfd_vma *written, | |
904 | bfd_size_type *string_size_p, | |
905 | asection **debug_string_section_p, | |
906 | bfd_size_type *debug_string_size_p) | |
252b5132 RH |
907 | { |
908 | unsigned int numaux = native->u.syment.n_numaux; | |
909 | int type = native->u.syment.n_type; | |
910 | int class = native->u.syment.n_sclass; | |
c8e7bf0d | 911 | void * buf; |
252b5132 RH |
912 | bfd_size_type symesz; |
913 | ||
914 | if (native->u.syment.n_sclass == C_FILE) | |
915 | symbol->flags |= BSF_DEBUGGING; | |
916 | ||
917 | if (symbol->flags & BSF_DEBUGGING | |
918 | && bfd_is_abs_section (symbol->section)) | |
c8e7bf0d NC |
919 | native->u.syment.n_scnum = N_DEBUG; |
920 | ||
252b5132 | 921 | else if (bfd_is_abs_section (symbol->section)) |
c8e7bf0d NC |
922 | native->u.syment.n_scnum = N_ABS; |
923 | ||
252b5132 | 924 | else if (bfd_is_und_section (symbol->section)) |
c8e7bf0d NC |
925 | native->u.syment.n_scnum = N_UNDEF; |
926 | ||
252b5132 | 927 | else |
c8e7bf0d NC |
928 | native->u.syment.n_scnum = |
929 | symbol->section->output_section->target_index; | |
252b5132 RH |
930 | |
931 | coff_fix_symbol_name (abfd, symbol, native, string_size_p, | |
932 | debug_string_section_p, debug_string_size_p); | |
933 | ||
934 | symesz = bfd_coff_symesz (abfd); | |
935 | buf = bfd_alloc (abfd, symesz); | |
936 | if (!buf) | |
b34976b6 | 937 | return FALSE; |
252b5132 | 938 | bfd_coff_swap_sym_out (abfd, &native->u.syment, buf); |
dc810e39 | 939 | if (bfd_bwrite (buf, symesz, abfd) != symesz) |
b34976b6 | 940 | return FALSE; |
252b5132 RH |
941 | bfd_release (abfd, buf); |
942 | ||
943 | if (native->u.syment.n_numaux > 0) | |
944 | { | |
945 | bfd_size_type auxesz; | |
946 | unsigned int j; | |
947 | ||
948 | auxesz = bfd_coff_auxesz (abfd); | |
949 | buf = bfd_alloc (abfd, auxesz); | |
950 | if (!buf) | |
b34976b6 | 951 | return FALSE; |
252b5132 RH |
952 | for (j = 0; j < native->u.syment.n_numaux; j++) |
953 | { | |
954 | bfd_coff_swap_aux_out (abfd, | |
955 | &((native + j + 1)->u.auxent), | |
c8e7bf0d | 956 | type, class, (int) j, |
252b5132 RH |
957 | native->u.syment.n_numaux, |
958 | buf); | |
dc810e39 | 959 | if (bfd_bwrite (buf, auxesz, abfd) != auxesz) |
b34976b6 | 960 | return FALSE; |
252b5132 RH |
961 | } |
962 | bfd_release (abfd, buf); | |
963 | } | |
964 | ||
965 | /* Store the index for use when we write out the relocs. */ | |
966 | set_index (symbol, *written); | |
967 | ||
968 | *written += numaux + 1; | |
b34976b6 | 969 | return TRUE; |
252b5132 RH |
970 | } |
971 | ||
972 | /* Write out a symbol to a COFF file that does not come from a COFF | |
973 | file originally. This symbol may have been created by the linker, | |
974 | or we may be linking a non COFF file to a COFF file. */ | |
975 | ||
b34976b6 | 976 | static bfd_boolean |
c8e7bf0d NC |
977 | coff_write_alien_symbol (bfd *abfd, |
978 | asymbol *symbol, | |
979 | bfd_vma *written, | |
980 | bfd_size_type *string_size_p, | |
981 | asection **debug_string_section_p, | |
982 | bfd_size_type *debug_string_size_p) | |
252b5132 RH |
983 | { |
984 | combined_entry_type *native; | |
985 | combined_entry_type dummy; | |
986 | ||
987 | native = &dummy; | |
988 | native->u.syment.n_type = T_NULL; | |
989 | native->u.syment.n_flags = 0; | |
990 | if (bfd_is_und_section (symbol->section)) | |
991 | { | |
992 | native->u.syment.n_scnum = N_UNDEF; | |
993 | native->u.syment.n_value = symbol->value; | |
994 | } | |
995 | else if (bfd_is_com_section (symbol->section)) | |
996 | { | |
997 | native->u.syment.n_scnum = N_UNDEF; | |
998 | native->u.syment.n_value = symbol->value; | |
999 | } | |
1000 | else if (symbol->flags & BSF_DEBUGGING) | |
1001 | { | |
1002 | /* There isn't much point to writing out a debugging symbol | |
1003 | unless we are prepared to convert it into COFF debugging | |
1004 | format. So, we just ignore them. We must clobber the symbol | |
1005 | name to keep it from being put in the string table. */ | |
1006 | symbol->name = ""; | |
b34976b6 | 1007 | return TRUE; |
252b5132 RH |
1008 | } |
1009 | else | |
1010 | { | |
1011 | native->u.syment.n_scnum = | |
1012 | symbol->section->output_section->target_index; | |
1013 | native->u.syment.n_value = (symbol->value | |
1014 | + symbol->section->output_offset); | |
1015 | if (! obj_pe (abfd)) | |
1016 | native->u.syment.n_value += symbol->section->output_section->vma; | |
1017 | ||
08da05b0 | 1018 | /* Copy the any flags from the file header into the symbol. |
252b5132 RH |
1019 | FIXME: Why? */ |
1020 | { | |
1021 | coff_symbol_type *c = coff_symbol_from (abfd, symbol); | |
1022 | if (c != (coff_symbol_type *) NULL) | |
1023 | native->u.syment.n_flags = bfd_asymbol_bfd (&c->symbol)->flags; | |
1024 | } | |
1025 | } | |
1026 | ||
1027 | native->u.syment.n_type = 0; | |
1028 | if (symbol->flags & BSF_LOCAL) | |
1029 | native->u.syment.n_sclass = C_STAT; | |
1030 | else if (symbol->flags & BSF_WEAK) | |
1031 | native->u.syment.n_sclass = obj_pe (abfd) ? C_NT_WEAK : C_WEAKEXT; | |
1032 | else | |
1033 | native->u.syment.n_sclass = C_EXT; | |
1034 | native->u.syment.n_numaux = 0; | |
1035 | ||
1036 | return coff_write_symbol (abfd, symbol, native, written, string_size_p, | |
1037 | debug_string_section_p, debug_string_size_p); | |
1038 | } | |
1039 | ||
1040 | /* Write a native symbol to a COFF file. */ | |
1041 | ||
b34976b6 | 1042 | static bfd_boolean |
c8e7bf0d NC |
1043 | coff_write_native_symbol (bfd *abfd, |
1044 | coff_symbol_type *symbol, | |
1045 | bfd_vma *written, | |
1046 | bfd_size_type *string_size_p, | |
1047 | asection **debug_string_section_p, | |
1048 | bfd_size_type *debug_string_size_p) | |
252b5132 RH |
1049 | { |
1050 | combined_entry_type *native = symbol->native; | |
1051 | alent *lineno = symbol->lineno; | |
1052 | ||
1053 | /* If this symbol has an associated line number, we must store the | |
1054 | symbol index in the line number field. We also tag the auxent to | |
1055 | point to the right place in the lineno table. */ | |
1056 | if (lineno && !symbol->done_lineno && symbol->symbol.section->owner != NULL) | |
1057 | { | |
1058 | unsigned int count = 0; | |
c8e7bf0d | 1059 | |
252b5132 RH |
1060 | lineno[count].u.offset = *written; |
1061 | if (native->u.syment.n_numaux) | |
1062 | { | |
1063 | union internal_auxent *a = &((native + 1)->u.auxent); | |
1064 | ||
1065 | a->x_sym.x_fcnary.x_fcn.x_lnnoptr = | |
1066 | symbol->symbol.section->output_section->moving_line_filepos; | |
1067 | } | |
1068 | ||
1069 | /* Count and relocate all other linenumbers. */ | |
1070 | count++; | |
1071 | while (lineno[count].line_number != 0) | |
1072 | { | |
252b5132 RH |
1073 | lineno[count].u.offset += |
1074 | (symbol->symbol.section->output_section->vma | |
1075 | + symbol->symbol.section->output_offset); | |
252b5132 RH |
1076 | count++; |
1077 | } | |
b34976b6 | 1078 | symbol->done_lineno = TRUE; |
252b5132 | 1079 | |
84c254c6 NC |
1080 | if (! bfd_is_const_section (symbol->symbol.section->output_section)) |
1081 | symbol->symbol.section->output_section->moving_line_filepos += | |
1082 | count * bfd_coff_linesz (abfd); | |
252b5132 RH |
1083 | } |
1084 | ||
1085 | return coff_write_symbol (abfd, &(symbol->symbol), native, written, | |
1086 | string_size_p, debug_string_section_p, | |
1087 | debug_string_size_p); | |
1088 | } | |
1089 | ||
e144674a NC |
1090 | static void |
1091 | null_error_handler (const char * fmt ATTRIBUTE_UNUSED, ...) | |
1092 | { | |
1093 | } | |
1094 | ||
252b5132 RH |
1095 | /* Write out the COFF symbols. */ |
1096 | ||
b34976b6 | 1097 | bfd_boolean |
c8e7bf0d | 1098 | coff_write_symbols (bfd *abfd) |
252b5132 RH |
1099 | { |
1100 | bfd_size_type string_size; | |
1101 | asection *debug_string_section; | |
1102 | bfd_size_type debug_string_size; | |
1103 | unsigned int i; | |
1104 | unsigned int limit = bfd_get_symcount (abfd); | |
f075ee0c | 1105 | bfd_vma written = 0; |
252b5132 RH |
1106 | asymbol **p; |
1107 | ||
1108 | string_size = 0; | |
1109 | debug_string_section = NULL; | |
1110 | debug_string_size = 0; | |
1111 | ||
1112 | /* If this target supports long section names, they must be put into | |
1113 | the string table. This is supported by PE. This code must | |
1114 | handle section names just as they are handled in | |
1115 | coff_write_object_contents. */ | |
1116 | if (bfd_coff_long_section_names (abfd)) | |
1117 | { | |
1118 | asection *o; | |
1119 | ||
1120 | for (o = abfd->sections; o != NULL; o = o->next) | |
1121 | { | |
1122 | size_t len; | |
1123 | ||
1124 | len = strlen (o->name); | |
1125 | if (len > SCNNMLEN) | |
1126 | string_size += len + 1; | |
1127 | } | |
1128 | } | |
1129 | ||
c8e7bf0d | 1130 | /* Seek to the right place. */ |
252b5132 | 1131 | if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0) |
b34976b6 | 1132 | return FALSE; |
252b5132 | 1133 | |
c8e7bf0d | 1134 | /* Output all the symbols we have. */ |
252b5132 RH |
1135 | written = 0; |
1136 | for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) | |
1137 | { | |
1138 | asymbol *symbol = *p; | |
1139 | coff_symbol_type *c_symbol = coff_symbol_from (abfd, symbol); | |
1140 | ||
1141 | if (c_symbol == (coff_symbol_type *) NULL | |
1142 | || c_symbol->native == (combined_entry_type *) NULL) | |
1143 | { | |
1144 | if (!coff_write_alien_symbol (abfd, symbol, &written, &string_size, | |
1145 | &debug_string_section, | |
1146 | &debug_string_size)) | |
b34976b6 | 1147 | return FALSE; |
252b5132 RH |
1148 | } |
1149 | else | |
1150 | { | |
e144674a NC |
1151 | if (coff_backend_info (abfd)->_bfd_coff_classify_symbol != NULL) |
1152 | { | |
1153 | bfd_error_handler_type current_error_handler; | |
1154 | enum coff_symbol_classification class; | |
1155 | unsigned char *n_sclass; | |
1156 | ||
1157 | /* Suppress error reporting by bfd_coff_classify_symbol. | |
1158 | Error messages can be generated when we are processing a local | |
1159 | symbol which has no associated section and we do not have to | |
1160 | worry about this, all we need to know is that it is local. */ | |
1161 | current_error_handler = bfd_set_error_handler (null_error_handler); | |
1162 | class = bfd_coff_classify_symbol (abfd, &c_symbol->native->u.syment); | |
1163 | (void) bfd_set_error_handler (current_error_handler); | |
1164 | ||
1165 | n_sclass = &c_symbol->native->u.syment.n_sclass; | |
1166 | ||
1167 | /* If the symbol class has been changed (eg objcopy/ld script/etc) | |
1168 | we cannot retain the existing sclass from the original symbol. | |
1169 | Weak symbols only have one valid sclass, so just set it always. | |
1170 | If it is not local class and should be, set it C_STAT. | |
1171 | If it is global and not classified as global, or if it is | |
1172 | weak (which is also classified as global), set it C_EXT. */ | |
1173 | ||
1174 | if (symbol->flags & BSF_WEAK) | |
1175 | *n_sclass = obj_pe (abfd) ? C_NT_WEAK : C_WEAKEXT; | |
1176 | else if (symbol->flags & BSF_LOCAL && class != COFF_SYMBOL_LOCAL) | |
1177 | *n_sclass = C_STAT; | |
1178 | else if (symbol->flags & BSF_GLOBAL | |
1179 | && (class != COFF_SYMBOL_GLOBAL | |
1180 | #ifdef COFF_WITH_PE | |
1181 | || *n_sclass == C_NT_WEAK | |
1182 | #endif | |
1183 | || *n_sclass == C_WEAKEXT)) | |
1184 | c_symbol->native->u.syment.n_sclass = C_EXT; | |
1185 | } | |
1186 | ||
252b5132 RH |
1187 | if (!coff_write_native_symbol (abfd, c_symbol, &written, |
1188 | &string_size, &debug_string_section, | |
1189 | &debug_string_size)) | |
b34976b6 | 1190 | return FALSE; |
252b5132 RH |
1191 | } |
1192 | } | |
1193 | ||
1194 | obj_raw_syment_count (abfd) = written; | |
1195 | ||
c8e7bf0d | 1196 | /* Now write out strings. */ |
252b5132 RH |
1197 | if (string_size != 0) |
1198 | { | |
1199 | unsigned int size = string_size + STRING_SIZE_SIZE; | |
1200 | bfd_byte buffer[STRING_SIZE_SIZE]; | |
1201 | ||
1202 | #if STRING_SIZE_SIZE == 4 | |
dc810e39 | 1203 | H_PUT_32 (abfd, size, buffer); |
252b5132 | 1204 | #else |
dc810e39 | 1205 | #error Change H_PUT_32 |
252b5132 | 1206 | #endif |
c8e7bf0d | 1207 | if (bfd_bwrite ((void *) buffer, (bfd_size_type) sizeof (buffer), abfd) |
dc810e39 | 1208 | != sizeof (buffer)) |
b34976b6 | 1209 | return FALSE; |
252b5132 RH |
1210 | |
1211 | /* Handle long section names. This code must handle section | |
1212 | names just as they are handled in coff_write_object_contents. */ | |
1213 | if (bfd_coff_long_section_names (abfd)) | |
1214 | { | |
1215 | asection *o; | |
1216 | ||
1217 | for (o = abfd->sections; o != NULL; o = o->next) | |
1218 | { | |
1219 | size_t len; | |
1220 | ||
1221 | len = strlen (o->name); | |
1222 | if (len > SCNNMLEN) | |
1223 | { | |
dc810e39 AM |
1224 | if (bfd_bwrite (o->name, (bfd_size_type) (len + 1), abfd) |
1225 | != len + 1) | |
b34976b6 | 1226 | return FALSE; |
252b5132 RH |
1227 | } |
1228 | } | |
1229 | } | |
1230 | ||
1231 | for (p = abfd->outsymbols, i = 0; | |
1232 | i < limit; | |
1233 | i++, p++) | |
1234 | { | |
1235 | asymbol *q = *p; | |
1236 | size_t name_length = strlen (q->name); | |
1237 | coff_symbol_type *c_symbol = coff_symbol_from (abfd, q); | |
1238 | size_t maxlen; | |
1239 | ||
1240 | /* Figure out whether the symbol name should go in the string | |
1241 | table. Symbol names that are short enough are stored | |
1242 | directly in the syment structure. File names permit a | |
1243 | different, longer, length in the syment structure. On | |
1244 | XCOFF, some symbol names are stored in the .debug section | |
1245 | rather than in the string table. */ | |
1246 | ||
1247 | if (c_symbol == NULL | |
1248 | || c_symbol->native == NULL) | |
c8e7bf0d NC |
1249 | /* This is not a COFF symbol, so it certainly is not a |
1250 | file name, nor does it go in the .debug section. */ | |
1251 | maxlen = bfd_coff_force_symnames_in_strings (abfd) ? 0 : SYMNMLEN; | |
1252 | ||
252b5132 RH |
1253 | else if (bfd_coff_symname_in_debug (abfd, |
1254 | &c_symbol->native->u.syment)) | |
c8e7bf0d NC |
1255 | /* This symbol name is in the XCOFF .debug section. |
1256 | Don't write it into the string table. */ | |
1257 | maxlen = name_length; | |
1258 | ||
252b5132 RH |
1259 | else if (c_symbol->native->u.syment.n_sclass == C_FILE |
1260 | && c_symbol->native->u.syment.n_numaux > 0) | |
7f6d05e8 | 1261 | { |
244148ad | 1262 | if (bfd_coff_force_symnames_in_strings (abfd)) |
dc810e39 AM |
1263 | { |
1264 | if (bfd_bwrite (".file", (bfd_size_type) 6, abfd) != 6) | |
b34976b6 | 1265 | return FALSE; |
dc810e39 | 1266 | } |
7f6d05e8 CP |
1267 | maxlen = bfd_coff_filnmlen (abfd); |
1268 | } | |
252b5132 | 1269 | else |
7f6d05e8 | 1270 | maxlen = bfd_coff_force_symnames_in_strings (abfd) ? 0 : SYMNMLEN; |
252b5132 RH |
1271 | |
1272 | if (name_length > maxlen) | |
1273 | { | |
c8e7bf0d | 1274 | if (bfd_bwrite ((void *) (q->name), (bfd_size_type) name_length + 1, |
dc810e39 | 1275 | abfd) != name_length + 1) |
b34976b6 | 1276 | return FALSE; |
252b5132 RH |
1277 | } |
1278 | } | |
1279 | } | |
1280 | else | |
1281 | { | |
1282 | /* We would normally not write anything here, but we'll write | |
1283 | out 4 so that any stupid coff reader which tries to read the | |
1284 | string table even when there isn't one won't croak. */ | |
1285 | unsigned int size = STRING_SIZE_SIZE; | |
1286 | bfd_byte buffer[STRING_SIZE_SIZE]; | |
1287 | ||
1288 | #if STRING_SIZE_SIZE == 4 | |
dc810e39 | 1289 | H_PUT_32 (abfd, size, buffer); |
252b5132 | 1290 | #else |
dc810e39 | 1291 | #error Change H_PUT_32 |
252b5132 | 1292 | #endif |
c8e7bf0d | 1293 | if (bfd_bwrite ((void *) buffer, (bfd_size_type) STRING_SIZE_SIZE, abfd) |
252b5132 | 1294 | != STRING_SIZE_SIZE) |
b34976b6 | 1295 | return FALSE; |
252b5132 RH |
1296 | } |
1297 | ||
1298 | /* Make sure the .debug section was created to be the correct size. | |
1299 | We should create it ourselves on the fly, but we don't because | |
1300 | BFD won't let us write to any section until we know how large all | |
1301 | the sections are. We could still do it by making another pass | |
1302 | over the symbols. FIXME. */ | |
1303 | BFD_ASSERT (debug_string_size == 0 | |
1304 | || (debug_string_section != (asection *) NULL | |
1305 | && (BFD_ALIGN (debug_string_size, | |
1306 | 1 << debug_string_section->alignment_power) | |
eea6121a | 1307 | == debug_string_section->size))); |
252b5132 | 1308 | |
b34976b6 | 1309 | return TRUE; |
252b5132 RH |
1310 | } |
1311 | ||
b34976b6 | 1312 | bfd_boolean |
c8e7bf0d | 1313 | coff_write_linenumbers (bfd *abfd) |
252b5132 RH |
1314 | { |
1315 | asection *s; | |
1316 | bfd_size_type linesz; | |
c8e7bf0d | 1317 | void * buff; |
252b5132 RH |
1318 | |
1319 | linesz = bfd_coff_linesz (abfd); | |
1320 | buff = bfd_alloc (abfd, linesz); | |
1321 | if (!buff) | |
b34976b6 | 1322 | return FALSE; |
252b5132 RH |
1323 | for (s = abfd->sections; s != (asection *) NULL; s = s->next) |
1324 | { | |
1325 | if (s->lineno_count) | |
1326 | { | |
1327 | asymbol **q = abfd->outsymbols; | |
1328 | if (bfd_seek (abfd, s->line_filepos, SEEK_SET) != 0) | |
b34976b6 | 1329 | return FALSE; |
c8e7bf0d | 1330 | /* Find all the linenumbers in this section. */ |
252b5132 RH |
1331 | while (*q) |
1332 | { | |
1333 | asymbol *p = *q; | |
1334 | if (p->section->output_section == s) | |
1335 | { | |
1336 | alent *l = | |
1337 | BFD_SEND (bfd_asymbol_bfd (p), _get_lineno, | |
1338 | (bfd_asymbol_bfd (p), p)); | |
1339 | if (l) | |
1340 | { | |
c8e7bf0d | 1341 | /* Found a linenumber entry, output. */ |
252b5132 | 1342 | struct internal_lineno out; |
c8e7bf0d | 1343 | memset ((void *) & out, 0, sizeof (out)); |
252b5132 RH |
1344 | out.l_lnno = 0; |
1345 | out.l_addr.l_symndx = l->u.offset; | |
1346 | bfd_coff_swap_lineno_out (abfd, &out, buff); | |
dc810e39 AM |
1347 | if (bfd_bwrite (buff, (bfd_size_type) linesz, abfd) |
1348 | != linesz) | |
b34976b6 | 1349 | return FALSE; |
252b5132 RH |
1350 | l++; |
1351 | while (l->line_number) | |
1352 | { | |
1353 | out.l_lnno = l->line_number; | |
1354 | out.l_addr.l_symndx = l->u.offset; | |
1355 | bfd_coff_swap_lineno_out (abfd, &out, buff); | |
dc810e39 AM |
1356 | if (bfd_bwrite (buff, (bfd_size_type) linesz, abfd) |
1357 | != linesz) | |
b34976b6 | 1358 | return FALSE; |
252b5132 RH |
1359 | l++; |
1360 | } | |
1361 | } | |
1362 | } | |
1363 | q++; | |
1364 | } | |
1365 | } | |
1366 | } | |
1367 | bfd_release (abfd, buff); | |
b34976b6 | 1368 | return TRUE; |
252b5132 RH |
1369 | } |
1370 | ||
252b5132 | 1371 | alent * |
c8e7bf0d | 1372 | coff_get_lineno (bfd *ignore_abfd ATTRIBUTE_UNUSED, asymbol *symbol) |
252b5132 RH |
1373 | { |
1374 | return coffsymbol (symbol)->lineno; | |
1375 | } | |
1376 | ||
252b5132 RH |
1377 | /* This function transforms the offsets into the symbol table into |
1378 | pointers to syments. */ | |
1379 | ||
1380 | static void | |
c8e7bf0d NC |
1381 | coff_pointerize_aux (bfd *abfd, |
1382 | combined_entry_type *table_base, | |
1383 | combined_entry_type *symbol, | |
1384 | unsigned int indaux, | |
1385 | combined_entry_type *auxent) | |
252b5132 RH |
1386 | { |
1387 | unsigned int type = symbol->u.syment.n_type; | |
1388 | unsigned int class = symbol->u.syment.n_sclass; | |
1389 | ||
1390 | if (coff_backend_info (abfd)->_bfd_coff_pointerize_aux_hook) | |
1391 | { | |
1392 | if ((*coff_backend_info (abfd)->_bfd_coff_pointerize_aux_hook) | |
1393 | (abfd, table_base, symbol, indaux, auxent)) | |
1394 | return; | |
1395 | } | |
1396 | ||
c8e7bf0d | 1397 | /* Don't bother if this is a file or a section. */ |
252b5132 RH |
1398 | if (class == C_STAT && type == T_NULL) |
1399 | return; | |
1400 | if (class == C_FILE) | |
1401 | return; | |
1402 | ||
c8e7bf0d NC |
1403 | /* Otherwise patch up. */ |
1404 | #define N_TMASK coff_data (abfd)->local_n_tmask | |
252b5132 | 1405 | #define N_BTSHFT coff_data (abfd)->local_n_btshft |
c8e7bf0d | 1406 | |
252b5132 RH |
1407 | if ((ISFCN (type) || ISTAG (class) || class == C_BLOCK || class == C_FCN) |
1408 | && auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l > 0) | |
1409 | { | |
1410 | auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p = | |
1411 | table_base + auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l; | |
1412 | auxent->fix_end = 1; | |
1413 | } | |
1414 | /* A negative tagndx is meaningless, but the SCO 3.2v4 cc can | |
1415 | generate one, so we must be careful to ignore it. */ | |
1416 | if (auxent->u.auxent.x_sym.x_tagndx.l > 0) | |
1417 | { | |
1418 | auxent->u.auxent.x_sym.x_tagndx.p = | |
1419 | table_base + auxent->u.auxent.x_sym.x_tagndx.l; | |
1420 | auxent->fix_tag = 1; | |
1421 | } | |
1422 | } | |
1423 | ||
1424 | /* Allocate space for the ".debug" section, and read it. | |
1425 | We did not read the debug section until now, because | |
244148ad | 1426 | we didn't want to go to the trouble until someone needed it. */ |
252b5132 RH |
1427 | |
1428 | static char * | |
c8e7bf0d | 1429 | build_debug_section (bfd *abfd) |
252b5132 RH |
1430 | { |
1431 | char *debug_section; | |
dc810e39 AM |
1432 | file_ptr position; |
1433 | bfd_size_type sec_size; | |
252b5132 RH |
1434 | |
1435 | asection *sect = bfd_get_section_by_name (abfd, ".debug"); | |
1436 | ||
1437 | if (!sect) | |
1438 | { | |
1439 | bfd_set_error (bfd_error_no_debug_section); | |
1440 | return NULL; | |
1441 | } | |
1442 | ||
eea6121a | 1443 | sec_size = sect->size; |
c8e7bf0d | 1444 | debug_section = bfd_alloc (abfd, sec_size); |
252b5132 RH |
1445 | if (debug_section == NULL) |
1446 | return NULL; | |
1447 | ||
244148ad | 1448 | /* Seek to the beginning of the `.debug' section and read it. |
252b5132 RH |
1449 | Save the current position first; it is needed by our caller. |
1450 | Then read debug section and reset the file pointer. */ | |
1451 | ||
1452 | position = bfd_tell (abfd); | |
1453 | if (bfd_seek (abfd, sect->filepos, SEEK_SET) != 0 | |
dc810e39 | 1454 | || bfd_bread (debug_section, sec_size, abfd) != sec_size |
252b5132 RH |
1455 | || bfd_seek (abfd, position, SEEK_SET) != 0) |
1456 | return NULL; | |
1457 | return debug_section; | |
1458 | } | |
1459 | ||
252b5132 RH |
1460 | /* Return a pointer to a malloc'd copy of 'name'. 'name' may not be |
1461 | \0-terminated, but will not exceed 'maxlen' characters. The copy *will* | |
1462 | be \0-terminated. */ | |
c8e7bf0d | 1463 | |
252b5132 | 1464 | static char * |
c8e7bf0d | 1465 | copy_name (bfd *abfd, char *name, size_t maxlen) |
252b5132 | 1466 | { |
dc810e39 | 1467 | size_t len; |
252b5132 RH |
1468 | char *newname; |
1469 | ||
1470 | for (len = 0; len < maxlen; ++len) | |
c8e7bf0d NC |
1471 | if (name[len] == '\0') |
1472 | break; | |
1473 | ||
1474 | if ((newname = bfd_alloc (abfd, (bfd_size_type) len + 1)) == NULL) | |
1475 | return NULL; | |
252b5132 | 1476 | |
252b5132 RH |
1477 | strncpy (newname, name, len); |
1478 | newname[len] = '\0'; | |
1479 | return newname; | |
1480 | } | |
1481 | ||
1482 | /* Read in the external symbols. */ | |
1483 | ||
b34976b6 | 1484 | bfd_boolean |
c8e7bf0d | 1485 | _bfd_coff_get_external_symbols (bfd *abfd) |
252b5132 RH |
1486 | { |
1487 | bfd_size_type symesz; | |
dc810e39 | 1488 | bfd_size_type size; |
c8e7bf0d | 1489 | void * syms; |
252b5132 RH |
1490 | |
1491 | if (obj_coff_external_syms (abfd) != NULL) | |
b34976b6 | 1492 | return TRUE; |
252b5132 RH |
1493 | |
1494 | symesz = bfd_coff_symesz (abfd); | |
1495 | ||
1496 | size = obj_raw_syment_count (abfd) * symesz; | |
353c5574 MS |
1497 | if (size == 0) |
1498 | return TRUE; | |
252b5132 | 1499 | |
c8e7bf0d | 1500 | syms = bfd_malloc (size); |
353c5574 | 1501 | if (syms == NULL) |
b34976b6 | 1502 | return FALSE; |
252b5132 RH |
1503 | |
1504 | if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0 | |
dc810e39 | 1505 | || bfd_bread (syms, size, abfd) != size) |
252b5132 RH |
1506 | { |
1507 | if (syms != NULL) | |
1508 | free (syms); | |
b34976b6 | 1509 | return FALSE; |
252b5132 RH |
1510 | } |
1511 | ||
1512 | obj_coff_external_syms (abfd) = syms; | |
1513 | ||
b34976b6 | 1514 | return TRUE; |
252b5132 RH |
1515 | } |
1516 | ||
1517 | /* Read in the external strings. The strings are not loaded until | |
1518 | they are needed. This is because we have no simple way of | |
1519 | detecting a missing string table in an archive. */ | |
1520 | ||
1521 | const char * | |
c8e7bf0d | 1522 | _bfd_coff_read_string_table (bfd *abfd) |
252b5132 RH |
1523 | { |
1524 | char extstrsize[STRING_SIZE_SIZE]; | |
dc810e39 | 1525 | bfd_size_type strsize; |
252b5132 | 1526 | char *strings; |
dc810e39 | 1527 | file_ptr pos; |
252b5132 RH |
1528 | |
1529 | if (obj_coff_strings (abfd) != NULL) | |
1530 | return obj_coff_strings (abfd); | |
1531 | ||
1532 | if (obj_sym_filepos (abfd) == 0) | |
1533 | { | |
1534 | bfd_set_error (bfd_error_no_symbols); | |
1535 | return NULL; | |
1536 | } | |
1537 | ||
dc810e39 AM |
1538 | pos = obj_sym_filepos (abfd); |
1539 | pos += obj_raw_syment_count (abfd) * bfd_coff_symesz (abfd); | |
1540 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) | |
252b5132 | 1541 | return NULL; |
244148ad | 1542 | |
dc810e39 AM |
1543 | if (bfd_bread (extstrsize, (bfd_size_type) sizeof extstrsize, abfd) |
1544 | != sizeof extstrsize) | |
252b5132 RH |
1545 | { |
1546 | if (bfd_get_error () != bfd_error_file_truncated) | |
1547 | return NULL; | |
1548 | ||
1549 | /* There is no string table. */ | |
1550 | strsize = STRING_SIZE_SIZE; | |
1551 | } | |
1552 | else | |
1553 | { | |
1554 | #if STRING_SIZE_SIZE == 4 | |
dc810e39 | 1555 | strsize = H_GET_32 (abfd, extstrsize); |
252b5132 | 1556 | #else |
dc810e39 | 1557 | #error Change H_GET_32 |
252b5132 RH |
1558 | #endif |
1559 | } | |
1560 | ||
1561 | if (strsize < STRING_SIZE_SIZE) | |
1562 | { | |
1563 | (*_bfd_error_handler) | |
d003868e | 1564 | (_("%B: bad string table size %lu"), abfd, (unsigned long) strsize); |
252b5132 RH |
1565 | bfd_set_error (bfd_error_bad_value); |
1566 | return NULL; | |
1567 | } | |
1568 | ||
c8e7bf0d | 1569 | strings = bfd_malloc (strsize); |
252b5132 RH |
1570 | if (strings == NULL) |
1571 | return NULL; | |
1572 | ||
dc810e39 | 1573 | if (bfd_bread (strings + STRING_SIZE_SIZE, strsize - STRING_SIZE_SIZE, abfd) |
252b5132 RH |
1574 | != strsize - STRING_SIZE_SIZE) |
1575 | { | |
1576 | free (strings); | |
1577 | return NULL; | |
1578 | } | |
1579 | ||
1580 | obj_coff_strings (abfd) = strings; | |
1581 | ||
1582 | return strings; | |
1583 | } | |
1584 | ||
1585 | /* Free up the external symbols and strings read from a COFF file. */ | |
1586 | ||
b34976b6 | 1587 | bfd_boolean |
c8e7bf0d | 1588 | _bfd_coff_free_symbols (bfd *abfd) |
252b5132 RH |
1589 | { |
1590 | if (obj_coff_external_syms (abfd) != NULL | |
1591 | && ! obj_coff_keep_syms (abfd)) | |
1592 | { | |
1593 | free (obj_coff_external_syms (abfd)); | |
1594 | obj_coff_external_syms (abfd) = NULL; | |
1595 | } | |
1596 | if (obj_coff_strings (abfd) != NULL | |
1597 | && ! obj_coff_keep_strings (abfd)) | |
1598 | { | |
1599 | free (obj_coff_strings (abfd)); | |
1600 | obj_coff_strings (abfd) = NULL; | |
1601 | } | |
b34976b6 | 1602 | return TRUE; |
252b5132 RH |
1603 | } |
1604 | ||
1605 | /* Read a symbol table into freshly bfd_allocated memory, swap it, and | |
1606 | knit the symbol names into a normalized form. By normalized here I | |
1607 | mean that all symbols have an n_offset pointer that points to a null- | |
1608 | terminated string. */ | |
1609 | ||
1610 | combined_entry_type * | |
c8e7bf0d | 1611 | coff_get_normalized_symtab (bfd *abfd) |
252b5132 RH |
1612 | { |
1613 | combined_entry_type *internal; | |
1614 | combined_entry_type *internal_ptr; | |
1615 | combined_entry_type *symbol_ptr; | |
1616 | combined_entry_type *internal_end; | |
dc810e39 | 1617 | size_t symesz; |
252b5132 RH |
1618 | char *raw_src; |
1619 | char *raw_end; | |
1620 | const char *string_table = NULL; | |
1621 | char *debug_section = NULL; | |
dc810e39 | 1622 | bfd_size_type size; |
252b5132 RH |
1623 | |
1624 | if (obj_raw_syments (abfd) != NULL) | |
1625 | return obj_raw_syments (abfd); | |
1626 | ||
1627 | size = obj_raw_syment_count (abfd) * sizeof (combined_entry_type); | |
c8e7bf0d | 1628 | internal = bfd_zalloc (abfd, size); |
252b5132 RH |
1629 | if (internal == NULL && size != 0) |
1630 | return NULL; | |
1631 | internal_end = internal + obj_raw_syment_count (abfd); | |
1632 | ||
1633 | if (! _bfd_coff_get_external_symbols (abfd)) | |
1634 | return NULL; | |
1635 | ||
1636 | raw_src = (char *) obj_coff_external_syms (abfd); | |
1637 | ||
c8e7bf0d | 1638 | /* Mark the end of the symbols. */ |
252b5132 RH |
1639 | symesz = bfd_coff_symesz (abfd); |
1640 | raw_end = (char *) raw_src + obj_raw_syment_count (abfd) * symesz; | |
1641 | ||
1642 | /* FIXME SOMEDAY. A string table size of zero is very weird, but | |
1643 | probably possible. If one shows up, it will probably kill us. */ | |
1644 | ||
c8e7bf0d | 1645 | /* Swap all the raw entries. */ |
252b5132 RH |
1646 | for (internal_ptr = internal; |
1647 | raw_src < raw_end; | |
1648 | raw_src += symesz, internal_ptr++) | |
1649 | { | |
1650 | ||
1651 | unsigned int i; | |
c8e7bf0d NC |
1652 | bfd_coff_swap_sym_in (abfd, (void *) raw_src, |
1653 | (void *) & internal_ptr->u.syment); | |
252b5132 RH |
1654 | symbol_ptr = internal_ptr; |
1655 | ||
1656 | for (i = 0; | |
1657 | i < symbol_ptr->u.syment.n_numaux; | |
1658 | i++) | |
1659 | { | |
1660 | internal_ptr++; | |
1661 | raw_src += symesz; | |
c8e7bf0d | 1662 | bfd_coff_swap_aux_in (abfd, (void *) raw_src, |
252b5132 RH |
1663 | symbol_ptr->u.syment.n_type, |
1664 | symbol_ptr->u.syment.n_sclass, | |
dc810e39 | 1665 | (int) i, symbol_ptr->u.syment.n_numaux, |
252b5132 RH |
1666 | &(internal_ptr->u.auxent)); |
1667 | coff_pointerize_aux (abfd, internal, symbol_ptr, i, | |
1668 | internal_ptr); | |
1669 | } | |
1670 | } | |
1671 | ||
1672 | /* Free the raw symbols, but not the strings (if we have them). */ | |
b34976b6 | 1673 | obj_coff_keep_strings (abfd) = TRUE; |
252b5132 RH |
1674 | if (! _bfd_coff_free_symbols (abfd)) |
1675 | return NULL; | |
1676 | ||
1677 | for (internal_ptr = internal; internal_ptr < internal_end; | |
1678 | internal_ptr++) | |
1679 | { | |
1680 | if (internal_ptr->u.syment.n_sclass == C_FILE | |
1681 | && internal_ptr->u.syment.n_numaux > 0) | |
1682 | { | |
c8e7bf0d NC |
1683 | /* Make a file symbol point to the name in the auxent, since |
1684 | the text ".file" is redundant. */ | |
252b5132 RH |
1685 | if ((internal_ptr + 1)->u.auxent.x_file.x_n.x_zeroes == 0) |
1686 | { | |
c8e7bf0d | 1687 | /* The filename is a long one, point into the string table. */ |
252b5132 RH |
1688 | if (string_table == NULL) |
1689 | { | |
1690 | string_table = _bfd_coff_read_string_table (abfd); | |
1691 | if (string_table == NULL) | |
1692 | return NULL; | |
1693 | } | |
1694 | ||
1695 | internal_ptr->u.syment._n._n_n._n_offset = | |
d2df793a | 1696 | ((bfd_hostptr_t) |
252b5132 RH |
1697 | (string_table |
1698 | + (internal_ptr + 1)->u.auxent.x_file.x_n.x_offset)); | |
1699 | } | |
1700 | else | |
1701 | { | |
7bb9db4d ILT |
1702 | /* Ordinary short filename, put into memory anyway. The |
1703 | Microsoft PE tools sometimes store a filename in | |
1704 | multiple AUX entries. */ | |
ec0ef80e DD |
1705 | if (internal_ptr->u.syment.n_numaux > 1 |
1706 | && coff_data (abfd)->pe) | |
c8e7bf0d | 1707 | internal_ptr->u.syment._n._n_n._n_offset = |
d2df793a | 1708 | ((bfd_hostptr_t) |
c8e7bf0d NC |
1709 | copy_name (abfd, |
1710 | (internal_ptr + 1)->u.auxent.x_file.x_fname, | |
1711 | internal_ptr->u.syment.n_numaux * symesz)); | |
ec0ef80e | 1712 | else |
c8e7bf0d | 1713 | internal_ptr->u.syment._n._n_n._n_offset = |
d2df793a | 1714 | ((bfd_hostptr_t) |
c8e7bf0d NC |
1715 | copy_name (abfd, |
1716 | (internal_ptr + 1)->u.auxent.x_file.x_fname, | |
1717 | (size_t) bfd_coff_filnmlen (abfd))); | |
252b5132 RH |
1718 | } |
1719 | } | |
1720 | else | |
1721 | { | |
1722 | if (internal_ptr->u.syment._n._n_n._n_zeroes != 0) | |
1723 | { | |
1724 | /* This is a "short" name. Make it long. */ | |
dc810e39 AM |
1725 | size_t i; |
1726 | char *newstring; | |
252b5132 | 1727 | |
c8e7bf0d | 1728 | /* Find the length of this string without walking into memory |
252b5132 RH |
1729 | that isn't ours. */ |
1730 | for (i = 0; i < 8; ++i) | |
dc810e39 AM |
1731 | if (internal_ptr->u.syment._n._n_name[i] == '\0') |
1732 | break; | |
252b5132 | 1733 | |
c8e7bf0d | 1734 | newstring = bfd_zalloc (abfd, (bfd_size_type) (i + 1)); |
dc810e39 | 1735 | if (newstring == NULL) |
c8e7bf0d | 1736 | return NULL; |
dc810e39 | 1737 | strncpy (newstring, internal_ptr->u.syment._n._n_name, i); |
d2df793a | 1738 | internal_ptr->u.syment._n._n_n._n_offset = (bfd_hostptr_t) newstring; |
252b5132 RH |
1739 | internal_ptr->u.syment._n._n_n._n_zeroes = 0; |
1740 | } | |
1741 | else if (internal_ptr->u.syment._n._n_n._n_offset == 0) | |
649aeae3 | 1742 | internal_ptr->u.syment._n._n_n._n_offset = (bfd_hostptr_t) ""; |
252b5132 RH |
1743 | else if (!bfd_coff_symname_in_debug (abfd, &internal_ptr->u.syment)) |
1744 | { | |
1745 | /* Long name already. Point symbol at the string in the | |
1746 | table. */ | |
1747 | if (string_table == NULL) | |
1748 | { | |
1749 | string_table = _bfd_coff_read_string_table (abfd); | |
1750 | if (string_table == NULL) | |
1751 | return NULL; | |
1752 | } | |
1753 | internal_ptr->u.syment._n._n_n._n_offset = | |
d2df793a | 1754 | ((bfd_hostptr_t) |
252b5132 RH |
1755 | (string_table |
1756 | + internal_ptr->u.syment._n._n_n._n_offset)); | |
1757 | } | |
1758 | else | |
1759 | { | |
1760 | /* Long name in debug section. Very similar. */ | |
1761 | if (debug_section == NULL) | |
1762 | debug_section = build_debug_section (abfd); | |
d2df793a | 1763 | internal_ptr->u.syment._n._n_n._n_offset = (bfd_hostptr_t) |
252b5132 RH |
1764 | (debug_section + internal_ptr->u.syment._n._n_n._n_offset); |
1765 | } | |
1766 | } | |
1767 | internal_ptr += internal_ptr->u.syment.n_numaux; | |
1768 | } | |
1769 | ||
1770 | obj_raw_syments (abfd) = internal; | |
1771 | BFD_ASSERT (obj_raw_syment_count (abfd) | |
1772 | == (unsigned int) (internal_ptr - internal)); | |
1773 | ||
c8e7bf0d NC |
1774 | return internal; |
1775 | } | |
252b5132 RH |
1776 | |
1777 | long | |
c8e7bf0d | 1778 | coff_get_reloc_upper_bound (bfd *abfd, sec_ptr asect) |
252b5132 RH |
1779 | { |
1780 | if (bfd_get_format (abfd) != bfd_object) | |
1781 | { | |
1782 | bfd_set_error (bfd_error_invalid_operation); | |
1783 | return -1; | |
1784 | } | |
1785 | return (asect->reloc_count + 1) * sizeof (arelent *); | |
1786 | } | |
1787 | ||
1788 | asymbol * | |
c8e7bf0d | 1789 | coff_make_empty_symbol (bfd *abfd) |
252b5132 | 1790 | { |
dc810e39 | 1791 | bfd_size_type amt = sizeof (coff_symbol_type); |
c8e7bf0d NC |
1792 | coff_symbol_type *new = bfd_zalloc (abfd, amt); |
1793 | ||
252b5132 | 1794 | if (new == NULL) |
c8e7bf0d | 1795 | return NULL; |
252b5132 RH |
1796 | new->symbol.section = 0; |
1797 | new->native = 0; | |
c8e7bf0d | 1798 | new->lineno = NULL; |
b34976b6 | 1799 | new->done_lineno = FALSE; |
252b5132 | 1800 | new->symbol.the_bfd = abfd; |
c8e7bf0d NC |
1801 | |
1802 | return & new->symbol; | |
252b5132 RH |
1803 | } |
1804 | ||
1805 | /* Make a debugging symbol. */ | |
1806 | ||
1807 | asymbol * | |
c8e7bf0d NC |
1808 | coff_bfd_make_debug_symbol (bfd *abfd, |
1809 | void * ptr ATTRIBUTE_UNUSED, | |
1810 | unsigned long sz ATTRIBUTE_UNUSED) | |
252b5132 | 1811 | { |
dc810e39 | 1812 | bfd_size_type amt = sizeof (coff_symbol_type); |
c8e7bf0d NC |
1813 | coff_symbol_type *new = bfd_alloc (abfd, amt); |
1814 | ||
252b5132 | 1815 | if (new == NULL) |
c8e7bf0d | 1816 | return NULL; |
252b5132 RH |
1817 | /* @@ The 10 is a guess at a plausible maximum number of aux entries |
1818 | (but shouldn't be a constant). */ | |
dc810e39 | 1819 | amt = sizeof (combined_entry_type) * 10; |
c8e7bf0d | 1820 | new->native = bfd_zalloc (abfd, amt); |
252b5132 | 1821 | if (!new->native) |
c8e7bf0d | 1822 | return NULL; |
252b5132 RH |
1823 | new->symbol.section = bfd_abs_section_ptr; |
1824 | new->symbol.flags = BSF_DEBUGGING; | |
c8e7bf0d | 1825 | new->lineno = NULL; |
b34976b6 | 1826 | new->done_lineno = FALSE; |
252b5132 | 1827 | new->symbol.the_bfd = abfd; |
c8e7bf0d NC |
1828 | |
1829 | return & new->symbol; | |
252b5132 RH |
1830 | } |
1831 | ||
252b5132 | 1832 | void |
c8e7bf0d | 1833 | coff_get_symbol_info (bfd *abfd, asymbol *symbol, symbol_info *ret) |
252b5132 RH |
1834 | { |
1835 | bfd_symbol_info (symbol, ret); | |
c8e7bf0d | 1836 | |
252b5132 RH |
1837 | if (coffsymbol (symbol)->native != NULL |
1838 | && coffsymbol (symbol)->native->fix_value) | |
c8e7bf0d | 1839 | ret->value = coffsymbol (symbol)->native->u.syment.n_value - |
d2df793a | 1840 | (bfd_hostptr_t) obj_raw_syments (abfd); |
252b5132 RH |
1841 | } |
1842 | ||
1843 | /* Return the COFF syment for a symbol. */ | |
1844 | ||
b34976b6 | 1845 | bfd_boolean |
c8e7bf0d NC |
1846 | bfd_coff_get_syment (bfd *abfd, |
1847 | asymbol *symbol, | |
1848 | struct internal_syment *psyment) | |
252b5132 RH |
1849 | { |
1850 | coff_symbol_type *csym; | |
1851 | ||
1852 | csym = coff_symbol_from (abfd, symbol); | |
1853 | if (csym == NULL || csym->native == NULL) | |
1854 | { | |
1855 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 1856 | return FALSE; |
252b5132 RH |
1857 | } |
1858 | ||
1859 | *psyment = csym->native->u.syment; | |
1860 | ||
1861 | if (csym->native->fix_value) | |
dc810e39 | 1862 | psyment->n_value = psyment->n_value - |
d2df793a | 1863 | (bfd_hostptr_t) obj_raw_syments (abfd); |
252b5132 RH |
1864 | |
1865 | /* FIXME: We should handle fix_line here. */ | |
1866 | ||
b34976b6 | 1867 | return TRUE; |
252b5132 RH |
1868 | } |
1869 | ||
1870 | /* Return the COFF auxent for a symbol. */ | |
1871 | ||
b34976b6 | 1872 | bfd_boolean |
c8e7bf0d NC |
1873 | bfd_coff_get_auxent (bfd *abfd, |
1874 | asymbol *symbol, | |
1875 | int indx, | |
1876 | union internal_auxent *pauxent) | |
252b5132 RH |
1877 | { |
1878 | coff_symbol_type *csym; | |
1879 | combined_entry_type *ent; | |
1880 | ||
1881 | csym = coff_symbol_from (abfd, symbol); | |
1882 | ||
1883 | if (csym == NULL | |
1884 | || csym->native == NULL | |
1885 | || indx >= csym->native->u.syment.n_numaux) | |
1886 | { | |
1887 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 1888 | return FALSE; |
252b5132 RH |
1889 | } |
1890 | ||
1891 | ent = csym->native + indx + 1; | |
1892 | ||
1893 | *pauxent = ent->u.auxent; | |
1894 | ||
1895 | if (ent->fix_tag) | |
1896 | pauxent->x_sym.x_tagndx.l = | |
1897 | ((combined_entry_type *) pauxent->x_sym.x_tagndx.p | |
1898 | - obj_raw_syments (abfd)); | |
1899 | ||
1900 | if (ent->fix_end) | |
1901 | pauxent->x_sym.x_fcnary.x_fcn.x_endndx.l = | |
1902 | ((combined_entry_type *) pauxent->x_sym.x_fcnary.x_fcn.x_endndx.p | |
1903 | - obj_raw_syments (abfd)); | |
1904 | ||
1905 | if (ent->fix_scnlen) | |
1906 | pauxent->x_csect.x_scnlen.l = | |
1907 | ((combined_entry_type *) pauxent->x_csect.x_scnlen.p | |
1908 | - obj_raw_syments (abfd)); | |
1909 | ||
b34976b6 | 1910 | return TRUE; |
252b5132 RH |
1911 | } |
1912 | ||
1913 | /* Print out information about COFF symbol. */ | |
1914 | ||
1915 | void | |
c8e7bf0d NC |
1916 | coff_print_symbol (bfd *abfd, |
1917 | void * filep, | |
1918 | asymbol *symbol, | |
1919 | bfd_print_symbol_type how) | |
252b5132 | 1920 | { |
c8e7bf0d | 1921 | FILE * file = (FILE *) filep; |
252b5132 RH |
1922 | |
1923 | switch (how) | |
1924 | { | |
1925 | case bfd_print_symbol_name: | |
1926 | fprintf (file, "%s", symbol->name); | |
1927 | break; | |
1928 | ||
1929 | case bfd_print_symbol_more: | |
1930 | fprintf (file, "coff %s %s", | |
1931 | coffsymbol (symbol)->native ? "n" : "g", | |
1932 | coffsymbol (symbol)->lineno ? "l" : " "); | |
1933 | break; | |
1934 | ||
1935 | case bfd_print_symbol_all: | |
1936 | if (coffsymbol (symbol)->native) | |
1937 | { | |
beb1bf64 | 1938 | bfd_vma val; |
252b5132 RH |
1939 | unsigned int aux; |
1940 | combined_entry_type *combined = coffsymbol (symbol)->native; | |
1941 | combined_entry_type *root = obj_raw_syments (abfd); | |
1942 | struct lineno_cache_entry *l = coffsymbol (symbol)->lineno; | |
1943 | ||
1944 | fprintf (file, "[%3ld]", (long) (combined - root)); | |
1945 | ||
1946 | if (! combined->fix_value) | |
beb1bf64 | 1947 | val = (bfd_vma) combined->u.syment.n_value; |
252b5132 | 1948 | else |
d2df793a | 1949 | val = combined->u.syment.n_value - (bfd_hostptr_t) root; |
252b5132 | 1950 | |
7920ce38 | 1951 | fprintf (file, "(sec %2d)(fl 0x%02x)(ty %3x)(scl %3d) (nx %d) 0x", |
252b5132 RH |
1952 | combined->u.syment.n_scnum, |
1953 | combined->u.syment.n_flags, | |
1954 | combined->u.syment.n_type, | |
1955 | combined->u.syment.n_sclass, | |
745c12f8 | 1956 | combined->u.syment.n_numaux); |
970ccc77 NC |
1957 | #ifdef BFD64 |
1958 | /* fprintf_vma() on a 64-bit enabled host will always print a 64-bit | |
1959 | value, but really we want to display the address in the target's | |
1960 | address size. Since we do not have a field in the bfd structure | |
1961 | to tell us this, we take a guess, based on the target's name. */ | |
1962 | if (strstr (bfd_get_target (abfd), "64") == NULL) | |
1963 | fprintf (file, "%08lx", (unsigned long) (val & 0xffffffff)); | |
1964 | else | |
1965 | #endif | |
1966 | fprintf_vma (file, val); | |
745c12f8 | 1967 | fprintf (file, " %s", symbol->name); |
252b5132 RH |
1968 | |
1969 | for (aux = 0; aux < combined->u.syment.n_numaux; aux++) | |
1970 | { | |
1971 | combined_entry_type *auxp = combined + aux + 1; | |
1972 | long tagndx; | |
1973 | ||
1974 | if (auxp->fix_tag) | |
1975 | tagndx = auxp->u.auxent.x_sym.x_tagndx.p - root; | |
1976 | else | |
1977 | tagndx = auxp->u.auxent.x_sym.x_tagndx.l; | |
1978 | ||
1979 | fprintf (file, "\n"); | |
1980 | ||
1981 | if (bfd_coff_print_aux (abfd, file, root, combined, auxp, aux)) | |
1982 | continue; | |
1983 | ||
1984 | switch (combined->u.syment.n_sclass) | |
1985 | { | |
1986 | case C_FILE: | |
1987 | fprintf (file, "File "); | |
1988 | break; | |
1989 | ||
1990 | case C_STAT: | |
1991 | if (combined->u.syment.n_type == T_NULL) | |
c8e7bf0d | 1992 | /* Probably a section symbol ? */ |
252b5132 RH |
1993 | { |
1994 | fprintf (file, "AUX scnlen 0x%lx nreloc %d nlnno %d", | |
0af1713e | 1995 | (unsigned long) auxp->u.auxent.x_scn.x_scnlen, |
252b5132 RH |
1996 | auxp->u.auxent.x_scn.x_nreloc, |
1997 | auxp->u.auxent.x_scn.x_nlinno); | |
1998 | if (auxp->u.auxent.x_scn.x_checksum != 0 | |
1999 | || auxp->u.auxent.x_scn.x_associated != 0 | |
2000 | || auxp->u.auxent.x_scn.x_comdat != 0) | |
2001 | fprintf (file, " checksum 0x%lx assoc %d comdat %d", | |
2002 | auxp->u.auxent.x_scn.x_checksum, | |
2003 | auxp->u.auxent.x_scn.x_associated, | |
2004 | auxp->u.auxent.x_scn.x_comdat); | |
2005 | break; | |
2006 | } | |
c8e7bf0d | 2007 | /* Otherwise fall through. */ |
312191a6 ILT |
2008 | case C_EXT: |
2009 | if (ISFCN (combined->u.syment.n_type)) | |
2010 | { | |
cea4409c AM |
2011 | long next, llnos; |
2012 | ||
2013 | if (auxp->fix_end) | |
2014 | next = (auxp->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p | |
2015 | - root); | |
2016 | else | |
2017 | next = auxp->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l; | |
2018 | llnos = auxp->u.auxent.x_sym.x_fcnary.x_fcn.x_lnnoptr; | |
312191a6 | 2019 | fprintf (file, |
3d66c4f7 | 2020 | "AUX tagndx %ld ttlsiz 0x%lx lnnos %ld next %ld", |
0af1713e AM |
2021 | tagndx, |
2022 | (unsigned long) auxp->u.auxent.x_sym.x_misc.x_fsize, | |
cea4409c | 2023 | llnos, next); |
312191a6 ILT |
2024 | break; |
2025 | } | |
c8e7bf0d | 2026 | /* Otherwise fall through. */ |
252b5132 RH |
2027 | default: |
2028 | fprintf (file, "AUX lnno %d size 0x%x tagndx %ld", | |
2029 | auxp->u.auxent.x_sym.x_misc.x_lnsz.x_lnno, | |
2030 | auxp->u.auxent.x_sym.x_misc.x_lnsz.x_size, | |
2031 | tagndx); | |
2032 | if (auxp->fix_end) | |
2033 | fprintf (file, " endndx %ld", | |
2034 | ((long) | |
2035 | (auxp->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p | |
2036 | - root))); | |
2037 | break; | |
2038 | } | |
2039 | } | |
2040 | ||
2041 | if (l) | |
2042 | { | |
2043 | fprintf (file, "\n%s :", l->u.sym->name); | |
2044 | l++; | |
2045 | while (l->line_number) | |
2046 | { | |
745c12f8 NC |
2047 | fprintf (file, "\n%4d : ", l->line_number); |
2048 | fprintf_vma (file, l->u.offset + symbol->section->vma); | |
252b5132 RH |
2049 | l++; |
2050 | } | |
2051 | } | |
2052 | } | |
2053 | else | |
2054 | { | |
c8e7bf0d | 2055 | bfd_print_symbol_vandf (abfd, (void *) file, symbol); |
252b5132 RH |
2056 | fprintf (file, " %-5s %s %s %s", |
2057 | symbol->section->name, | |
2058 | coffsymbol (symbol)->native ? "n" : "g", | |
2059 | coffsymbol (symbol)->lineno ? "l" : " ", | |
2060 | symbol->name); | |
2061 | } | |
2062 | } | |
2063 | } | |
2064 | ||
2065 | /* Return whether a symbol name implies a local symbol. In COFF, | |
2066 | local symbols generally start with ``.L''. Most targets use this | |
2067 | function for the is_local_label_name entry point, but some may | |
2068 | override it. */ | |
2069 | ||
b34976b6 | 2070 | bfd_boolean |
c8e7bf0d NC |
2071 | _bfd_coff_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, |
2072 | const char *name) | |
252b5132 | 2073 | { |
b34976b6 | 2074 | return name[0] == '.' && name[1] == 'L'; |
252b5132 RH |
2075 | } |
2076 | ||
9a968f43 NC |
2077 | /* Provided a BFD, a section and an offset (in bytes, not octets) into the |
2078 | section, calculate and return the name of the source file and the line | |
2079 | nearest to the wanted location. */ | |
435b1e90 | 2080 | |
b34976b6 | 2081 | bfd_boolean |
c8e7bf0d NC |
2082 | coff_find_nearest_line (bfd *abfd, |
2083 | asection *section, | |
2084 | asymbol **symbols, | |
2085 | bfd_vma offset, | |
2086 | const char **filename_ptr, | |
2087 | const char **functionname_ptr, | |
2088 | unsigned int *line_ptr) | |
252b5132 | 2089 | { |
b34976b6 | 2090 | bfd_boolean found; |
252b5132 RH |
2091 | unsigned int i; |
2092 | unsigned int line_base; | |
2093 | coff_data_type *cof = coff_data (abfd); | |
c8e7bf0d | 2094 | /* Run through the raw syments if available. */ |
252b5132 RH |
2095 | combined_entry_type *p; |
2096 | combined_entry_type *pend; | |
2097 | alent *l; | |
2098 | struct coff_section_tdata *sec_data; | |
dc810e39 | 2099 | bfd_size_type amt; |
252b5132 RH |
2100 | |
2101 | /* Before looking through the symbol table, try to use a .stab | |
2102 | section to find the information. */ | |
2103 | if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, | |
2104 | &found, filename_ptr, | |
2105 | functionname_ptr, line_ptr, | |
51db3708 | 2106 | &coff_data(abfd)->line_info)) |
b34976b6 | 2107 | return FALSE; |
51db3708 | 2108 | |
4ca29a6a | 2109 | if (found) |
b34976b6 | 2110 | return TRUE; |
4ca29a6a | 2111 | |
51db3708 NC |
2112 | /* Also try examining DWARF2 debugging information. */ |
2113 | if (_bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset, | |
2114 | filename_ptr, functionname_ptr, | |
2115 | line_ptr, 0, | |
2116 | &coff_data(abfd)->dwarf2_find_line_info)) | |
b34976b6 | 2117 | return TRUE; |
51db3708 | 2118 | |
252b5132 RH |
2119 | *filename_ptr = 0; |
2120 | *functionname_ptr = 0; | |
2121 | *line_ptr = 0; | |
2122 | ||
c8e7bf0d | 2123 | /* Don't try and find line numbers in a non coff file. */ |
9bd09e22 | 2124 | if (!bfd_family_coff (abfd)) |
b34976b6 | 2125 | return FALSE; |
252b5132 RH |
2126 | |
2127 | if (cof == NULL) | |
b34976b6 | 2128 | return FALSE; |
252b5132 RH |
2129 | |
2130 | /* Find the first C_FILE symbol. */ | |
2131 | p = cof->raw_syments; | |
2132 | if (!p) | |
b34976b6 | 2133 | return FALSE; |
252b5132 RH |
2134 | |
2135 | pend = p + cof->raw_syment_count; | |
2136 | while (p < pend) | |
2137 | { | |
2138 | if (p->u.syment.n_sclass == C_FILE) | |
2139 | break; | |
2140 | p += 1 + p->u.syment.n_numaux; | |
2141 | } | |
2142 | ||
2143 | if (p < pend) | |
2144 | { | |
2145 | bfd_vma sec_vma; | |
2146 | bfd_vma maxdiff; | |
2147 | ||
2148 | /* Look through the C_FILE symbols to find the best one. */ | |
2149 | sec_vma = bfd_get_section_vma (abfd, section); | |
2150 | *filename_ptr = (char *) p->u.syment._n._n_n._n_offset; | |
2151 | maxdiff = (bfd_vma) 0 - (bfd_vma) 1; | |
2152 | while (1) | |
2153 | { | |
2154 | combined_entry_type *p2; | |
2155 | ||
2156 | for (p2 = p + 1 + p->u.syment.n_numaux; | |
2157 | p2 < pend; | |
2158 | p2 += 1 + p2->u.syment.n_numaux) | |
2159 | { | |
2160 | if (p2->u.syment.n_scnum > 0 | |
2161 | && (section | |
2162 | == coff_section_from_bfd_index (abfd, | |
2163 | p2->u.syment.n_scnum))) | |
2164 | break; | |
2165 | if (p2->u.syment.n_sclass == C_FILE) | |
2166 | { | |
2167 | p2 = pend; | |
2168 | break; | |
2169 | } | |
2170 | } | |
2171 | ||
798c1fb8 ILT |
2172 | /* We use <= MAXDIFF here so that if we get a zero length |
2173 | file, we actually use the next file entry. */ | |
252b5132 RH |
2174 | if (p2 < pend |
2175 | && offset + sec_vma >= (bfd_vma) p2->u.syment.n_value | |
798c1fb8 | 2176 | && offset + sec_vma - (bfd_vma) p2->u.syment.n_value <= maxdiff) |
252b5132 RH |
2177 | { |
2178 | *filename_ptr = (char *) p->u.syment._n._n_n._n_offset; | |
2179 | maxdiff = offset + sec_vma - p2->u.syment.n_value; | |
2180 | } | |
2181 | ||
2182 | /* Avoid endless loops on erroneous files by ensuring that | |
2183 | we always move forward in the file. */ | |
cea4409c | 2184 | if (p >= cof->raw_syments + p->u.syment.n_value) |
252b5132 RH |
2185 | break; |
2186 | ||
2187 | p = cof->raw_syments + p->u.syment.n_value; | |
2188 | if (p > pend || p->u.syment.n_sclass != C_FILE) | |
2189 | break; | |
2190 | } | |
2191 | } | |
2192 | ||
c8e7bf0d | 2193 | /* Now wander though the raw linenumbers of the section. */ |
70df0c05 | 2194 | /* If we have been called on this section before, and the offset we |
252b5132 RH |
2195 | want is further down then we can prime the lookup loop. */ |
2196 | sec_data = coff_section_data (abfd, section); | |
2197 | if (sec_data != NULL | |
2198 | && sec_data->i > 0 | |
2199 | && offset >= sec_data->offset) | |
2200 | { | |
2201 | i = sec_data->i; | |
2202 | *functionname_ptr = sec_data->function; | |
2203 | line_base = sec_data->line_base; | |
2204 | } | |
2205 | else | |
2206 | { | |
2207 | i = 0; | |
2208 | line_base = 0; | |
2209 | } | |
2210 | ||
2211 | if (section->lineno != NULL) | |
2212 | { | |
798c1fb8 ILT |
2213 | bfd_vma last_value = 0; |
2214 | ||
252b5132 RH |
2215 | l = §ion->lineno[i]; |
2216 | ||
2217 | for (; i < section->lineno_count; i++) | |
2218 | { | |
2219 | if (l->line_number == 0) | |
2220 | { | |
c8e7bf0d | 2221 | /* Get the symbol this line number points at. */ |
252b5132 RH |
2222 | coff_symbol_type *coff = (coff_symbol_type *) (l->u.sym); |
2223 | if (coff->symbol.value > offset) | |
2224 | break; | |
2225 | *functionname_ptr = coff->symbol.name; | |
798c1fb8 | 2226 | last_value = coff->symbol.value; |
252b5132 RH |
2227 | if (coff->native) |
2228 | { | |
2229 | combined_entry_type *s = coff->native; | |
2230 | s = s + 1 + s->u.syment.n_numaux; | |
2231 | ||
2232 | /* In XCOFF a debugging symbol can follow the | |
2233 | function symbol. */ | |
2234 | if (s->u.syment.n_scnum == N_DEBUG) | |
2235 | s = s + 1 + s->u.syment.n_numaux; | |
2236 | ||
2237 | /* S should now point to the .bf of the function. */ | |
2238 | if (s->u.syment.n_numaux) | |
2239 | { | |
2240 | /* The linenumber is stored in the auxent. */ | |
2241 | union internal_auxent *a = &((s + 1)->u.auxent); | |
2242 | line_base = a->x_sym.x_misc.x_lnsz.x_lnno; | |
2243 | *line_ptr = line_base; | |
2244 | } | |
2245 | } | |
2246 | } | |
2247 | else | |
2248 | { | |
2249 | if (l->u.offset > offset) | |
2250 | break; | |
2251 | *line_ptr = l->line_number + line_base - 1; | |
2252 | } | |
2253 | l++; | |
2254 | } | |
798c1fb8 ILT |
2255 | |
2256 | /* If we fell off the end of the loop, then assume that this | |
2257 | symbol has no line number info. Otherwise, symbols with no | |
2258 | line number info get reported with the line number of the | |
2259 | last line of the last symbol which does have line number | |
2260 | info. We use 0x100 as a slop to account for cases where the | |
2261 | last line has executable code. */ | |
2262 | if (i >= section->lineno_count | |
2263 | && last_value != 0 | |
2264 | && offset - last_value > 0x100) | |
2265 | { | |
2266 | *functionname_ptr = NULL; | |
2267 | *line_ptr = 0; | |
2268 | } | |
252b5132 RH |
2269 | } |
2270 | ||
2271 | /* Cache the results for the next call. */ | |
2272 | if (sec_data == NULL && section->owner == abfd) | |
2273 | { | |
dc810e39 | 2274 | amt = sizeof (struct coff_section_tdata); |
c8e7bf0d | 2275 | section->used_by_bfd = bfd_zalloc (abfd, amt); |
252b5132 RH |
2276 | sec_data = (struct coff_section_tdata *) section->used_by_bfd; |
2277 | } | |
2278 | if (sec_data != NULL) | |
2279 | { | |
2280 | sec_data->offset = offset; | |
70df0c05 | 2281 | sec_data->i = i - 1; |
252b5132 RH |
2282 | sec_data->function = *functionname_ptr; |
2283 | sec_data->line_base = line_base; | |
2284 | } | |
2285 | ||
b34976b6 | 2286 | return TRUE; |
252b5132 RH |
2287 | } |
2288 | ||
4ab527b0 FF |
2289 | bfd_boolean |
2290 | coff_find_inliner_info (bfd *abfd, | |
2291 | const char **filename_ptr, | |
2292 | const char **functionname_ptr, | |
2293 | unsigned int *line_ptr) | |
2294 | { | |
2295 | bfd_boolean found; | |
2296 | ||
2297 | found = _bfd_dwarf2_find_inliner_info (abfd, filename_ptr, | |
2298 | functionname_ptr, line_ptr, | |
2299 | &coff_data(abfd)->dwarf2_find_line_info); | |
2300 | return (found); | |
2301 | } | |
2302 | ||
252b5132 | 2303 | int |
a6b96beb | 2304 | coff_sizeof_headers (bfd *abfd, struct bfd_link_info *info) |
252b5132 RH |
2305 | { |
2306 | size_t size; | |
2307 | ||
a6b96beb | 2308 | if (!info->relocatable) |
c8e7bf0d | 2309 | size = bfd_coff_filhsz (abfd) + bfd_coff_aoutsz (abfd); |
252b5132 | 2310 | else |
c8e7bf0d | 2311 | size = bfd_coff_filhsz (abfd); |
252b5132 RH |
2312 | |
2313 | size += abfd->section_count * bfd_coff_scnhsz (abfd); | |
2314 | return size; | |
2315 | } | |
2316 | ||
2317 | /* Change the class of a coff symbol held by BFD. */ | |
c8e7bf0d | 2318 | |
b34976b6 | 2319 | bfd_boolean |
c8e7bf0d NC |
2320 | bfd_coff_set_symbol_class (bfd * abfd, |
2321 | asymbol * symbol, | |
2322 | unsigned int class) | |
252b5132 RH |
2323 | { |
2324 | coff_symbol_type * csym; | |
2325 | ||
2326 | csym = coff_symbol_from (abfd, symbol); | |
2327 | if (csym == NULL) | |
2328 | { | |
2329 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 2330 | return FALSE; |
252b5132 RH |
2331 | } |
2332 | else if (csym->native == NULL) | |
2333 | { | |
2334 | /* This is an alien symbol which no native coff backend data. | |
2335 | We cheat here by creating a fake native entry for it and | |
2336 | then filling in the class. This code is based on that in | |
2337 | coff_write_alien_symbol(). */ | |
244148ad | 2338 | |
252b5132 | 2339 | combined_entry_type * native; |
dc810e39 | 2340 | bfd_size_type amt = sizeof (* native); |
252b5132 | 2341 | |
c8e7bf0d | 2342 | native = bfd_zalloc (abfd, amt); |
252b5132 | 2343 | if (native == NULL) |
b34976b6 | 2344 | return FALSE; |
252b5132 | 2345 | |
252b5132 RH |
2346 | native->u.syment.n_type = T_NULL; |
2347 | native->u.syment.n_sclass = class; | |
244148ad | 2348 | |
252b5132 RH |
2349 | if (bfd_is_und_section (symbol->section)) |
2350 | { | |
2351 | native->u.syment.n_scnum = N_UNDEF; | |
2352 | native->u.syment.n_value = symbol->value; | |
2353 | } | |
2354 | else if (bfd_is_com_section (symbol->section)) | |
2355 | { | |
2356 | native->u.syment.n_scnum = N_UNDEF; | |
2357 | native->u.syment.n_value = symbol->value; | |
2358 | } | |
2359 | else | |
2360 | { | |
2361 | native->u.syment.n_scnum = | |
2362 | symbol->section->output_section->target_index; | |
2363 | native->u.syment.n_value = (symbol->value | |
2364 | + symbol->section->output_offset); | |
2365 | if (! obj_pe (abfd)) | |
2366 | native->u.syment.n_value += symbol->section->output_section->vma; | |
244148ad | 2367 | |
08da05b0 | 2368 | /* Copy the any flags from the file header into the symbol. |
252b5132 RH |
2369 | FIXME: Why? */ |
2370 | native->u.syment.n_flags = bfd_asymbol_bfd (& csym->symbol)->flags; | |
2371 | } | |
244148ad | 2372 | |
252b5132 RH |
2373 | csym->native = native; |
2374 | } | |
2375 | else | |
c8e7bf0d | 2376 | csym->native->u.syment.n_sclass = class; |
244148ad | 2377 | |
b34976b6 | 2378 | return TRUE; |
252b5132 | 2379 | } |
082b7297 L |
2380 | |
2381 | struct coff_comdat_info * | |
2382 | bfd_coff_get_comdat_section (bfd *abfd, struct bfd_section *sec) | |
2383 | { | |
fedf8d51 AM |
2384 | if (bfd_get_flavour (abfd) == bfd_target_coff_flavour |
2385 | && coff_section_data (abfd, sec) != NULL) | |
082b7297 L |
2386 | return coff_section_data (abfd, sec)->comdat; |
2387 | else | |
2388 | return NULL; | |
2389 | } |