Commit | Line | Data |
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252b5132 | 1 | /* Support for the generic parts of COFF, for BFD. |
b90efa5b | 2 | Copyright (C) 1990-2015 Free Software Foundation, Inc. |
252b5132 RH |
3 | Written by Cygnus Support. |
4 | ||
c8e7bf0d | 5 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 6 | |
c8e7bf0d NC |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c8e7bf0d | 10 | (at your option) any later version. |
252b5132 | 11 | |
c8e7bf0d NC |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
252b5132 | 16 | |
c8e7bf0d NC |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program; if not, write to the Free Software | |
cd123cb7 NC |
19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
20 | MA 02110-1301, USA. */ | |
252b5132 RH |
21 | |
22 | /* Most of this hacked by Steve Chamberlain, sac@cygnus.com. | |
23 | Split out of coffcode.h by Ian Taylor, ian@cygnus.com. */ | |
24 | ||
25 | /* This file contains COFF code that is not dependent on any | |
26 | particular COFF target. There is only one version of this file in | |
27 | libbfd.a, so no target specific code may be put in here. Or, to | |
28 | put it another way, | |
29 | ||
30 | ********** DO NOT PUT TARGET SPECIFIC CODE IN THIS FILE ********** | |
31 | ||
32 | If you need to add some target specific behaviour, add a new hook | |
33 | function to bfd_coff_backend_data. | |
34 | ||
35 | Some of these functions are also called by the ECOFF routines. | |
36 | Those functions may not use any COFF specific information, such as | |
37 | coff_data (abfd). */ | |
38 | ||
252b5132 | 39 | #include "sysdep.h" |
3db64b00 | 40 | #include "bfd.h" |
252b5132 RH |
41 | #include "libbfd.h" |
42 | #include "coff/internal.h" | |
43 | #include "libcoff.h" | |
44 | ||
252b5132 RH |
45 | /* Take a section header read from a coff file (in HOST byte order), |
46 | and make a BFD "section" out of it. This is used by ECOFF. */ | |
c8e7bf0d | 47 | |
b34976b6 | 48 | static bfd_boolean |
c8e7bf0d NC |
49 | make_a_section_from_file (bfd *abfd, |
50 | struct internal_scnhdr *hdr, | |
51 | unsigned int target_index) | |
252b5132 RH |
52 | { |
53 | asection *return_section; | |
54 | char *name; | |
b34976b6 | 55 | bfd_boolean result = TRUE; |
7c8ca0e4 | 56 | flagword flags; |
252b5132 RH |
57 | |
58 | name = NULL; | |
59 | ||
88183869 DK |
60 | /* Handle long section names as in PE. On reading, we want to |
61 | accept long names if the format permits them at all, regardless | |
62 | of the current state of the flag that dictates if we would generate | |
63 | them in outputs; this construct checks if that is the case by | |
64 | attempting to set the flag, without changing its state; the call | |
65 | will fail for formats that do not support long names at all. */ | |
66 | if (bfd_coff_set_long_section_names (abfd, bfd_coff_long_section_names (abfd)) | |
252b5132 RH |
67 | && hdr->s_name[0] == '/') |
68 | { | |
69 | char buf[SCNNMLEN]; | |
70 | long strindex; | |
71 | char *p; | |
72 | const char *strings; | |
73 | ||
0408dee6 DK |
74 | /* Flag that this BFD uses long names, even though the format might |
75 | expect them to be off by default. This won't directly affect the | |
76 | format of any output BFD created from this one, but the information | |
77 | can be used to decide what to do. */ | |
78 | bfd_coff_set_long_section_names (abfd, TRUE); | |
252b5132 RH |
79 | memcpy (buf, hdr->s_name + 1, SCNNMLEN - 1); |
80 | buf[SCNNMLEN - 1] = '\0'; | |
81 | strindex = strtol (buf, &p, 10); | |
82 | if (*p == '\0' && strindex >= 0) | |
83 | { | |
84 | strings = _bfd_coff_read_string_table (abfd); | |
85 | if (strings == NULL) | |
b34976b6 | 86 | return FALSE; |
5a3f568b NC |
87 | if ((bfd_size_type)(strindex + 2) >= obj_coff_strings_len (abfd)) |
88 | return FALSE; | |
252b5132 | 89 | strings += strindex; |
a50b1753 | 90 | name = (char *) bfd_alloc (abfd, |
a29a8af8 | 91 | (bfd_size_type) strlen (strings) + 1 + 1); |
252b5132 | 92 | if (name == NULL) |
b34976b6 | 93 | return FALSE; |
252b5132 RH |
94 | strcpy (name, strings); |
95 | } | |
96 | } | |
97 | ||
98 | if (name == NULL) | |
99 | { | |
100 | /* Assorted wastage to null-terminate the name, thanks AT&T! */ | |
a50b1753 | 101 | name = (char *) bfd_alloc (abfd, |
a29a8af8 | 102 | (bfd_size_type) sizeof (hdr->s_name) + 1 + 1); |
252b5132 | 103 | if (name == NULL) |
b34976b6 | 104 | return FALSE; |
252b5132 RH |
105 | strncpy (name, (char *) &hdr->s_name[0], sizeof (hdr->s_name)); |
106 | name[sizeof (hdr->s_name)] = 0; | |
107 | } | |
108 | ||
109 | return_section = bfd_make_section_anyway (abfd, name); | |
110 | if (return_section == NULL) | |
b34976b6 | 111 | return FALSE; |
252b5132 RH |
112 | |
113 | return_section->vma = hdr->s_vaddr; | |
114 | return_section->lma = hdr->s_paddr; | |
eea6121a | 115 | return_section->size = hdr->s_size; |
252b5132 RH |
116 | return_section->filepos = hdr->s_scnptr; |
117 | return_section->rel_filepos = hdr->s_relptr; | |
118 | return_section->reloc_count = hdr->s_nreloc; | |
119 | ||
120 | bfd_coff_set_alignment_hook (abfd, return_section, hdr); | |
121 | ||
122 | return_section->line_filepos = hdr->s_lnnoptr; | |
123 | ||
124 | return_section->lineno_count = hdr->s_nlnno; | |
125 | return_section->userdata = NULL; | |
c8e7bf0d | 126 | return_section->next = NULL; |
252b5132 | 127 | return_section->target_index = target_index; |
7c8ca0e4 NC |
128 | |
129 | if (! bfd_coff_styp_to_sec_flags_hook (abfd, hdr, name, return_section, | |
130 | & flags)) | |
b34976b6 | 131 | result = FALSE; |
dc810e39 | 132 | |
7c8ca0e4 | 133 | return_section->flags = flags; |
252b5132 RH |
134 | |
135 | /* At least on i386-coff, the line number count for a shared library | |
136 | section must be ignored. */ | |
137 | if ((return_section->flags & SEC_COFF_SHARED_LIBRARY) != 0) | |
138 | return_section->lineno_count = 0; | |
139 | ||
140 | if (hdr->s_nreloc != 0) | |
141 | return_section->flags |= SEC_RELOC; | |
c8e7bf0d | 142 | /* FIXME: should this check 'hdr->s_size > 0'. */ |
252b5132 RH |
143 | if (hdr->s_scnptr != 0) |
144 | return_section->flags |= SEC_HAS_CONTENTS; | |
7c8ca0e4 | 145 | |
a29a8af8 KT |
146 | /* Compress/decompress DWARF debug sections with names: .debug_* and |
147 | .zdebug_*, after the section flags is set. */ | |
148 | if ((flags & SEC_DEBUGGING) | |
a1165289 | 149 | && strlen (name) > 7 |
a29a8af8 | 150 | && ((name[1] == 'd' && name[6] == '_') |
a1165289 | 151 | || (strlen (name) > 8 && name[1] == 'z' && name[7] == '_'))) |
a29a8af8 KT |
152 | { |
153 | enum { nothing, compress, decompress } action = nothing; | |
154 | char *new_name = NULL; | |
155 | ||
156 | if (bfd_is_section_compressed (abfd, return_section)) | |
157 | { | |
158 | /* Compressed section. Check if we should decompress. */ | |
159 | if ((abfd->flags & BFD_DECOMPRESS)) | |
160 | action = decompress; | |
161 | } | |
162 | else if (!bfd_is_section_compressed (abfd, return_section)) | |
163 | { | |
164 | /* Normal section. Check if we should compress. */ | |
165 | if ((abfd->flags & BFD_COMPRESS) && return_section->size != 0) | |
166 | action = compress; | |
167 | } | |
168 | ||
169 | switch (action) | |
170 | { | |
171 | case nothing: | |
172 | break; | |
173 | case compress: | |
174 | if (!bfd_init_section_compress_status (abfd, return_section)) | |
175 | { | |
176 | (*_bfd_error_handler) | |
177 | (_("%B: unable to initialize compress status for section %s"), | |
178 | abfd, name); | |
179 | return FALSE; | |
180 | } | |
181 | if (name[1] != 'z') | |
182 | { | |
183 | unsigned int len = strlen (name); | |
184 | ||
185 | new_name = bfd_alloc (abfd, len + 2); | |
186 | if (new_name == NULL) | |
187 | return FALSE; | |
188 | new_name[0] = '.'; | |
189 | new_name[1] = 'z'; | |
190 | memcpy (new_name + 2, name + 1, len); | |
191 | } | |
192 | break; | |
193 | case decompress: | |
194 | if (!bfd_init_section_decompress_status (abfd, return_section)) | |
195 | { | |
196 | (*_bfd_error_handler) | |
197 | (_("%B: unable to initialize decompress status for section %s"), | |
198 | abfd, name); | |
199 | return FALSE; | |
200 | } | |
201 | if (name[1] == 'z') | |
202 | { | |
203 | unsigned int len = strlen (name); | |
204 | ||
205 | new_name = bfd_alloc (abfd, len); | |
206 | if (new_name == NULL) | |
207 | return FALSE; | |
208 | new_name[0] = '.'; | |
209 | memcpy (new_name + 1, name + 2, len - 1); | |
210 | } | |
211 | break; | |
212 | } | |
213 | if (new_name != NULL) | |
214 | bfd_rename_section (abfd, return_section, new_name); | |
215 | } | |
216 | ||
7c8ca0e4 | 217 | return result; |
252b5132 RH |
218 | } |
219 | ||
220 | /* Read in a COFF object and make it into a BFD. This is used by | |
221 | ECOFF as well. */ | |
ce63b7b3 KT |
222 | const bfd_target * |
223 | coff_real_object_p (bfd *, | |
224 | unsigned, | |
225 | struct internal_filehdr *, | |
226 | struct internal_aouthdr *); | |
227 | const bfd_target * | |
c8e7bf0d NC |
228 | coff_real_object_p (bfd *abfd, |
229 | unsigned nscns, | |
230 | struct internal_filehdr *internal_f, | |
231 | struct internal_aouthdr *internal_a) | |
252b5132 RH |
232 | { |
233 | flagword oflags = abfd->flags; | |
234 | bfd_vma ostart = bfd_get_start_address (abfd); | |
c8e7bf0d NC |
235 | void * tdata; |
236 | void * tdata_save; | |
237 | bfd_size_type readsize; /* Length of file_info. */ | |
252b5132 RH |
238 | unsigned int scnhsz; |
239 | char *external_sections; | |
240 | ||
241 | if (!(internal_f->f_flags & F_RELFLG)) | |
242 | abfd->flags |= HAS_RELOC; | |
243 | if ((internal_f->f_flags & F_EXEC)) | |
244 | abfd->flags |= EXEC_P; | |
245 | if (!(internal_f->f_flags & F_LNNO)) | |
246 | abfd->flags |= HAS_LINENO; | |
247 | if (!(internal_f->f_flags & F_LSYMS)) | |
248 | abfd->flags |= HAS_LOCALS; | |
249 | ||
250 | /* FIXME: How can we set D_PAGED correctly? */ | |
251 | if ((internal_f->f_flags & F_EXEC) != 0) | |
252 | abfd->flags |= D_PAGED; | |
253 | ||
254 | bfd_get_symcount (abfd) = internal_f->f_nsyms; | |
255 | if (internal_f->f_nsyms) | |
256 | abfd->flags |= HAS_SYMS; | |
257 | ||
258 | if (internal_a != (struct internal_aouthdr *) NULL) | |
259 | bfd_get_start_address (abfd) = internal_a->entry; | |
260 | else | |
261 | bfd_get_start_address (abfd) = 0; | |
262 | ||
263 | /* Set up the tdata area. ECOFF uses its own routine, and overrides | |
264 | abfd->flags. */ | |
487e54f2 | 265 | tdata_save = abfd->tdata.any; |
c8e7bf0d | 266 | tdata = bfd_coff_mkobject_hook (abfd, (void *) internal_f, (void *) internal_a); |
252b5132 | 267 | if (tdata == NULL) |
487e54f2 | 268 | goto fail2; |
252b5132 RH |
269 | |
270 | scnhsz = bfd_coff_scnhsz (abfd); | |
dc810e39 | 271 | readsize = (bfd_size_type) nscns * scnhsz; |
a50b1753 | 272 | external_sections = (char *) bfd_alloc (abfd, readsize); |
252b5132 RH |
273 | if (!external_sections) |
274 | goto fail; | |
275 | ||
c8e7bf0d | 276 | if (bfd_bread ((void *) external_sections, readsize, abfd) != readsize) |
252b5132 RH |
277 | goto fail; |
278 | ||
363d7b14 | 279 | /* Set the arch/mach *before* swapping in sections; section header swapping |
244148ad | 280 | may depend on arch/mach info. */ |
c8e7bf0d | 281 | if (! bfd_coff_set_arch_mach_hook (abfd, (void *) internal_f)) |
363d7b14 TW |
282 | goto fail; |
283 | ||
e16bb312 | 284 | /* Now copy data as required; construct all asections etc. */ |
252b5132 RH |
285 | if (nscns != 0) |
286 | { | |
287 | unsigned int i; | |
288 | for (i = 0; i < nscns; i++) | |
289 | { | |
290 | struct internal_scnhdr tmp; | |
291 | bfd_coff_swap_scnhdr_in (abfd, | |
c8e7bf0d NC |
292 | (void *) (external_sections + i * scnhsz), |
293 | (void *) & tmp); | |
252b5132 RH |
294 | if (! make_a_section_from_file (abfd, &tmp, i + 1)) |
295 | goto fail; | |
296 | } | |
297 | } | |
298 | ||
252b5132 RH |
299 | return abfd->xvec; |
300 | ||
301 | fail: | |
302 | bfd_release (abfd, tdata); | |
487e54f2 AM |
303 | fail2: |
304 | abfd->tdata.any = tdata_save; | |
252b5132 RH |
305 | abfd->flags = oflags; |
306 | bfd_get_start_address (abfd) = ostart; | |
307 | return (const bfd_target *) NULL; | |
308 | } | |
309 | ||
310 | /* Turn a COFF file into a BFD, but fail with bfd_error_wrong_format if it is | |
311 | not a COFF file. This is also used by ECOFF. */ | |
312 | ||
313 | const bfd_target * | |
c8e7bf0d | 314 | coff_object_p (bfd *abfd) |
252b5132 | 315 | { |
dc810e39 AM |
316 | bfd_size_type filhsz; |
317 | bfd_size_type aoutsz; | |
318 | unsigned int nscns; | |
c8e7bf0d | 319 | void * filehdr; |
252b5132 RH |
320 | struct internal_filehdr internal_f; |
321 | struct internal_aouthdr internal_a; | |
322 | ||
c8e7bf0d | 323 | /* Figure out how much to read. */ |
252b5132 RH |
324 | filhsz = bfd_coff_filhsz (abfd); |
325 | aoutsz = bfd_coff_aoutsz (abfd); | |
326 | ||
327 | filehdr = bfd_alloc (abfd, filhsz); | |
328 | if (filehdr == NULL) | |
487e54f2 | 329 | return NULL; |
dc810e39 | 330 | if (bfd_bread (filehdr, filhsz, abfd) != filhsz) |
252b5132 RH |
331 | { |
332 | if (bfd_get_error () != bfd_error_system_call) | |
333 | bfd_set_error (bfd_error_wrong_format); | |
487e54f2 AM |
334 | bfd_release (abfd, filehdr); |
335 | return NULL; | |
252b5132 RH |
336 | } |
337 | bfd_coff_swap_filehdr_in (abfd, filehdr, &internal_f); | |
338 | bfd_release (abfd, filehdr); | |
339 | ||
b8819ab2 NC |
340 | /* The XCOFF format has two sizes for the f_opthdr. SMALL_AOUTSZ |
341 | (less than aoutsz) used in object files and AOUTSZ (equal to | |
342 | aoutsz) in executables. The bfd_coff_swap_aouthdr_in function | |
343 | expects this header to be aoutsz bytes in length, so we use that | |
344 | value in the call to bfd_alloc below. But we must be careful to | |
345 | only read in f_opthdr bytes in the call to bfd_bread. We should | |
346 | also attempt to catch corrupt or non-COFF binaries with a strange | |
347 | value for f_opthdr. */ | |
82e51918 | 348 | if (! bfd_coff_bad_format_hook (abfd, &internal_f) |
95f7d9f7 | 349 | || internal_f.f_opthdr > aoutsz) |
252b5132 RH |
350 | { |
351 | bfd_set_error (bfd_error_wrong_format); | |
487e54f2 | 352 | return NULL; |
252b5132 RH |
353 | } |
354 | nscns = internal_f.f_nscns; | |
355 | ||
356 | if (internal_f.f_opthdr) | |
357 | { | |
c8e7bf0d | 358 | void * opthdr; |
252b5132 RH |
359 | |
360 | opthdr = bfd_alloc (abfd, aoutsz); | |
361 | if (opthdr == NULL) | |
487e54f2 | 362 | return NULL; |
dc810e39 | 363 | if (bfd_bread (opthdr, (bfd_size_type) internal_f.f_opthdr, abfd) |
252b5132 RH |
364 | != internal_f.f_opthdr) |
365 | { | |
487e54f2 AM |
366 | bfd_release (abfd, opthdr); |
367 | return NULL; | |
252b5132 | 368 | } |
a1165289 NC |
369 | /* PR 17512: file: 11056-1136-0.004. */ |
370 | if (internal_f.f_opthdr < aoutsz) | |
371 | memset (((char *) opthdr) + internal_f.f_opthdr, 0, aoutsz - internal_f.f_opthdr); | |
372 | ||
c8e7bf0d | 373 | bfd_coff_swap_aouthdr_in (abfd, opthdr, (void *) &internal_a); |
487e54f2 | 374 | bfd_release (abfd, opthdr); |
252b5132 RH |
375 | } |
376 | ||
377 | return coff_real_object_p (abfd, nscns, &internal_f, | |
378 | (internal_f.f_opthdr != 0 | |
379 | ? &internal_a | |
380 | : (struct internal_aouthdr *) NULL)); | |
381 | } | |
382 | ||
383 | /* Get the BFD section from a COFF symbol section number. */ | |
384 | ||
385 | asection * | |
91d6fa6a | 386 | coff_section_from_bfd_index (bfd *abfd, int section_index) |
252b5132 | 387 | { |
198beae2 | 388 | struct bfd_section *answer = abfd->sections; |
252b5132 | 389 | |
91d6fa6a | 390 | if (section_index == N_ABS) |
252b5132 | 391 | return bfd_abs_section_ptr; |
91d6fa6a | 392 | if (section_index == N_UNDEF) |
252b5132 | 393 | return bfd_und_section_ptr; |
91d6fa6a | 394 | if (section_index == N_DEBUG) |
252b5132 RH |
395 | return bfd_abs_section_ptr; |
396 | ||
397 | while (answer) | |
398 | { | |
91d6fa6a | 399 | if (answer->target_index == section_index) |
252b5132 RH |
400 | return answer; |
401 | answer = answer->next; | |
402 | } | |
403 | ||
404 | /* We should not reach this point, but the SCO 3.2v4 /lib/libc_s.a | |
405 | has a bad symbol table in biglitpow.o. */ | |
406 | return bfd_und_section_ptr; | |
407 | } | |
408 | ||
409 | /* Get the upper bound of a COFF symbol table. */ | |
410 | ||
411 | long | |
c8e7bf0d | 412 | coff_get_symtab_upper_bound (bfd *abfd) |
252b5132 RH |
413 | { |
414 | if (!bfd_coff_slurp_symbol_table (abfd)) | |
415 | return -1; | |
416 | ||
417 | return (bfd_get_symcount (abfd) + 1) * (sizeof (coff_symbol_type *)); | |
418 | } | |
419 | ||
252b5132 RH |
420 | /* Canonicalize a COFF symbol table. */ |
421 | ||
422 | long | |
c8e7bf0d | 423 | coff_canonicalize_symtab (bfd *abfd, asymbol **alocation) |
252b5132 RH |
424 | { |
425 | unsigned int counter; | |
426 | coff_symbol_type *symbase; | |
427 | coff_symbol_type **location = (coff_symbol_type **) alocation; | |
428 | ||
429 | if (!bfd_coff_slurp_symbol_table (abfd)) | |
430 | return -1; | |
431 | ||
432 | symbase = obj_symbols (abfd); | |
433 | counter = bfd_get_symcount (abfd); | |
434 | while (counter-- > 0) | |
435 | *location++ = symbase++; | |
436 | ||
437 | *location = NULL; | |
438 | ||
439 | return bfd_get_symcount (abfd); | |
440 | } | |
441 | ||
442 | /* Get the name of a symbol. The caller must pass in a buffer of size | |
443 | >= SYMNMLEN + 1. */ | |
444 | ||
445 | const char * | |
c8e7bf0d NC |
446 | _bfd_coff_internal_syment_name (bfd *abfd, |
447 | const struct internal_syment *sym, | |
448 | char *buf) | |
252b5132 RH |
449 | { |
450 | /* FIXME: It's not clear this will work correctly if sizeof | |
451 | (_n_zeroes) != 4. */ | |
452 | if (sym->_n._n_n._n_zeroes != 0 | |
453 | || sym->_n._n_n._n_offset == 0) | |
454 | { | |
455 | memcpy (buf, sym->_n._n_name, SYMNMLEN); | |
456 | buf[SYMNMLEN] = '\0'; | |
457 | return buf; | |
458 | } | |
459 | else | |
460 | { | |
461 | const char *strings; | |
462 | ||
463 | BFD_ASSERT (sym->_n._n_n._n_offset >= STRING_SIZE_SIZE); | |
464 | strings = obj_coff_strings (abfd); | |
465 | if (strings == NULL) | |
466 | { | |
467 | strings = _bfd_coff_read_string_table (abfd); | |
468 | if (strings == NULL) | |
469 | return NULL; | |
470 | } | |
cdb602b1 NC |
471 | /* PR 17910: Only check for string overflow if the length has been set. |
472 | Some DLLs, eg those produced by Visual Studio, may not set the length field. */ | |
473 | if (obj_coff_strings_len (abfd) > 0 | |
474 | && sym->_n._n_n._n_offset >= obj_coff_strings_len (abfd)) | |
5a3f568b | 475 | return NULL; |
252b5132 RH |
476 | return strings + sym->_n._n_n._n_offset; |
477 | } | |
478 | } | |
479 | ||
480 | /* Read in and swap the relocs. This returns a buffer holding the | |
b34976b6 | 481 | relocs for section SEC in file ABFD. If CACHE is TRUE and |
252b5132 RH |
482 | INTERNAL_RELOCS is NULL, the relocs read in will be saved in case |
483 | the function is called again. If EXTERNAL_RELOCS is not NULL, it | |
484 | is a buffer large enough to hold the unswapped relocs. If | |
485 | INTERNAL_RELOCS is not NULL, it is a buffer large enough to hold | |
b34976b6 | 486 | the swapped relocs. If REQUIRE_INTERNAL is TRUE, then the return |
252b5132 RH |
487 | value must be INTERNAL_RELOCS. The function returns NULL on error. */ |
488 | ||
489 | struct internal_reloc * | |
c8e7bf0d NC |
490 | _bfd_coff_read_internal_relocs (bfd *abfd, |
491 | asection *sec, | |
492 | bfd_boolean cache, | |
493 | bfd_byte *external_relocs, | |
494 | bfd_boolean require_internal, | |
495 | struct internal_reloc *internal_relocs) | |
252b5132 RH |
496 | { |
497 | bfd_size_type relsz; | |
498 | bfd_byte *free_external = NULL; | |
499 | struct internal_reloc *free_internal = NULL; | |
500 | bfd_byte *erel; | |
501 | bfd_byte *erel_end; | |
502 | struct internal_reloc *irel; | |
dc810e39 | 503 | bfd_size_type amt; |
252b5132 | 504 | |
9d7038d3 MS |
505 | if (sec->reloc_count == 0) |
506 | return internal_relocs; /* Nothing to do. */ | |
507 | ||
252b5132 RH |
508 | if (coff_section_data (abfd, sec) != NULL |
509 | && coff_section_data (abfd, sec)->relocs != NULL) | |
510 | { | |
511 | if (! require_internal) | |
512 | return coff_section_data (abfd, sec)->relocs; | |
513 | memcpy (internal_relocs, coff_section_data (abfd, sec)->relocs, | |
514 | sec->reloc_count * sizeof (struct internal_reloc)); | |
515 | return internal_relocs; | |
516 | } | |
517 | ||
518 | relsz = bfd_coff_relsz (abfd); | |
519 | ||
dc810e39 | 520 | amt = sec->reloc_count * relsz; |
252b5132 RH |
521 | if (external_relocs == NULL) |
522 | { | |
a50b1753 | 523 | free_external = (bfd_byte *) bfd_malloc (amt); |
9d7038d3 | 524 | if (free_external == NULL) |
252b5132 RH |
525 | goto error_return; |
526 | external_relocs = free_external; | |
527 | } | |
528 | ||
529 | if (bfd_seek (abfd, sec->rel_filepos, SEEK_SET) != 0 | |
dc810e39 | 530 | || bfd_bread (external_relocs, amt, abfd) != amt) |
252b5132 RH |
531 | goto error_return; |
532 | ||
533 | if (internal_relocs == NULL) | |
534 | { | |
dc810e39 AM |
535 | amt = sec->reloc_count; |
536 | amt *= sizeof (struct internal_reloc); | |
a50b1753 | 537 | free_internal = (struct internal_reloc *) bfd_malloc (amt); |
9d7038d3 | 538 | if (free_internal == NULL) |
252b5132 RH |
539 | goto error_return; |
540 | internal_relocs = free_internal; | |
541 | } | |
542 | ||
543 | /* Swap in the relocs. */ | |
544 | erel = external_relocs; | |
545 | erel_end = erel + relsz * sec->reloc_count; | |
546 | irel = internal_relocs; | |
547 | for (; erel < erel_end; erel += relsz, irel++) | |
c8e7bf0d | 548 | bfd_coff_swap_reloc_in (abfd, (void *) erel, (void *) irel); |
252b5132 RH |
549 | |
550 | if (free_external != NULL) | |
551 | { | |
552 | free (free_external); | |
553 | free_external = NULL; | |
554 | } | |
555 | ||
9ee2139f | 556 | if (cache && free_internal != NULL) |
252b5132 | 557 | { |
9ee2139f | 558 | if (coff_section_data (abfd, sec) == NULL) |
252b5132 | 559 | { |
9ee2139f MS |
560 | amt = sizeof (struct coff_section_tdata); |
561 | sec->used_by_bfd = bfd_zalloc (abfd, amt); | |
562 | if (sec->used_by_bfd == NULL) | |
563 | goto error_return; | |
564 | coff_section_data (abfd, sec)->contents = NULL; | |
252b5132 | 565 | } |
9ee2139f | 566 | coff_section_data (abfd, sec)->relocs = free_internal; |
252b5132 RH |
567 | } |
568 | ||
569 | return internal_relocs; | |
570 | ||
571 | error_return: | |
572 | if (free_external != NULL) | |
573 | free (free_external); | |
574 | if (free_internal != NULL) | |
575 | free (free_internal); | |
576 | return NULL; | |
577 | } | |
578 | ||
579 | /* Set lineno_count for the output sections of a COFF file. */ | |
580 | ||
581 | int | |
c8e7bf0d | 582 | coff_count_linenumbers (bfd *abfd) |
252b5132 RH |
583 | { |
584 | unsigned int limit = bfd_get_symcount (abfd); | |
585 | unsigned int i; | |
586 | int total = 0; | |
587 | asymbol **p; | |
588 | asection *s; | |
589 | ||
590 | if (limit == 0) | |
591 | { | |
592 | /* This may be from the backend linker, in which case the | |
593 | lineno_count in the sections is correct. */ | |
594 | for (s = abfd->sections; s != NULL; s = s->next) | |
595 | total += s->lineno_count; | |
596 | return total; | |
597 | } | |
598 | ||
599 | for (s = abfd->sections; s != NULL; s = s->next) | |
600 | BFD_ASSERT (s->lineno_count == 0); | |
601 | ||
602 | for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) | |
603 | { | |
604 | asymbol *q_maybe = *p; | |
605 | ||
9bd09e22 | 606 | if (bfd_family_coff (bfd_asymbol_bfd (q_maybe))) |
252b5132 RH |
607 | { |
608 | coff_symbol_type *q = coffsymbol (q_maybe); | |
609 | ||
610 | /* The AIX 4.1 compiler can sometimes generate line numbers | |
611 | attached to debugging symbols. We try to simply ignore | |
612 | those here. */ | |
613 | if (q->lineno != NULL | |
614 | && q->symbol.section->owner != NULL) | |
615 | { | |
616 | /* This symbol has line numbers. Increment the owning | |
617 | section's linenumber count. */ | |
618 | alent *l = q->lineno; | |
619 | ||
84c254c6 | 620 | do |
252b5132 | 621 | { |
84c254c6 | 622 | asection * sec = q->symbol.section->output_section; |
b34976b6 | 623 | |
84c254c6 NC |
624 | /* Do not try to update fields in read-only sections. */ |
625 | if (! bfd_is_const_section (sec)) | |
626 | sec->lineno_count ++; | |
627 | ||
252b5132 | 628 | ++total; |
252b5132 RH |
629 | ++l; |
630 | } | |
84c254c6 | 631 | while (l->line_number != 0); |
252b5132 RH |
632 | } |
633 | } | |
634 | } | |
635 | ||
636 | return total; | |
637 | } | |
638 | ||
252b5132 | 639 | static void |
c8e7bf0d NC |
640 | fixup_symbol_value (bfd *abfd, |
641 | coff_symbol_type *coff_symbol_ptr, | |
642 | struct internal_syment *syment) | |
252b5132 | 643 | { |
c8e7bf0d | 644 | /* Normalize the symbol flags. */ |
68ffbac6 | 645 | if (coff_symbol_ptr->symbol.section |
ac38308c | 646 | && bfd_is_com_section (coff_symbol_ptr->symbol.section)) |
252b5132 | 647 | { |
c8e7bf0d | 648 | /* A common symbol is undefined with a value. */ |
252b5132 RH |
649 | syment->n_scnum = N_UNDEF; |
650 | syment->n_value = coff_symbol_ptr->symbol.value; | |
651 | } | |
703153b5 ILT |
652 | else if ((coff_symbol_ptr->symbol.flags & BSF_DEBUGGING) != 0 |
653 | && (coff_symbol_ptr->symbol.flags & BSF_DEBUGGING_RELOC) == 0) | |
252b5132 RH |
654 | { |
655 | syment->n_value = coff_symbol_ptr->symbol.value; | |
656 | } | |
657 | else if (bfd_is_und_section (coff_symbol_ptr->symbol.section)) | |
658 | { | |
659 | syment->n_scnum = N_UNDEF; | |
660 | syment->n_value = 0; | |
661 | } | |
7bb9db4d | 662 | /* FIXME: Do we need to handle the absolute section here? */ |
252b5132 RH |
663 | else |
664 | { | |
665 | if (coff_symbol_ptr->symbol.section) | |
666 | { | |
667 | syment->n_scnum = | |
668 | coff_symbol_ptr->symbol.section->output_section->target_index; | |
669 | ||
670 | syment->n_value = (coff_symbol_ptr->symbol.value | |
671 | + coff_symbol_ptr->symbol.section->output_offset); | |
672 | if (! obj_pe (abfd)) | |
34cbe64e TW |
673 | { |
674 | syment->n_value += (syment->n_sclass == C_STATLAB) | |
675 | ? coff_symbol_ptr->symbol.section->output_section->lma | |
676 | : coff_symbol_ptr->symbol.section->output_section->vma; | |
677 | } | |
252b5132 RH |
678 | } |
679 | else | |
680 | { | |
681 | BFD_ASSERT (0); | |
682 | /* This can happen, but I don't know why yet (steve@cygnus.com) */ | |
683 | syment->n_scnum = N_ABS; | |
684 | syment->n_value = coff_symbol_ptr->symbol.value; | |
685 | } | |
686 | } | |
687 | } | |
688 | ||
689 | /* Run through all the symbols in the symbol table and work out what | |
690 | their indexes into the symbol table will be when output. | |
691 | ||
692 | Coff requires that each C_FILE symbol points to the next one in the | |
693 | chain, and that the last one points to the first external symbol. We | |
694 | do that here too. */ | |
695 | ||
b34976b6 | 696 | bfd_boolean |
c8e7bf0d | 697 | coff_renumber_symbols (bfd *bfd_ptr, int *first_undef) |
252b5132 RH |
698 | { |
699 | unsigned int symbol_count = bfd_get_symcount (bfd_ptr); | |
700 | asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols; | |
701 | unsigned int native_index = 0; | |
c8e7bf0d | 702 | struct internal_syment *last_file = NULL; |
252b5132 RH |
703 | unsigned int symbol_index; |
704 | ||
705 | /* COFF demands that undefined symbols come after all other symbols. | |
706 | Since we don't need to impose this extra knowledge on all our | |
707 | client programs, deal with that here. Sort the symbol table; | |
708 | just move the undefined symbols to the end, leaving the rest | |
709 | alone. The O'Reilly book says that defined global symbols come | |
710 | at the end before the undefined symbols, so we do that here as | |
711 | well. */ | |
712 | /* @@ Do we have some condition we could test for, so we don't always | |
713 | have to do this? I don't think relocatability is quite right, but | |
714 | I'm not certain. [raeburn:19920508.1711EST] */ | |
715 | { | |
716 | asymbol **newsyms; | |
717 | unsigned int i; | |
dc810e39 | 718 | bfd_size_type amt; |
252b5132 | 719 | |
dc810e39 | 720 | amt = sizeof (asymbol *) * ((bfd_size_type) symbol_count + 1); |
a50b1753 | 721 | newsyms = (asymbol **) bfd_alloc (bfd_ptr, amt); |
252b5132 | 722 | if (!newsyms) |
b34976b6 | 723 | return FALSE; |
252b5132 RH |
724 | bfd_ptr->outsymbols = newsyms; |
725 | for (i = 0; i < symbol_count; i++) | |
726 | if ((symbol_ptr_ptr[i]->flags & BSF_NOT_AT_END) != 0 | |
727 | || (!bfd_is_und_section (symbol_ptr_ptr[i]->section) | |
728 | && !bfd_is_com_section (symbol_ptr_ptr[i]->section) | |
729 | && ((symbol_ptr_ptr[i]->flags & BSF_FUNCTION) != 0 | |
730 | || ((symbol_ptr_ptr[i]->flags & (BSF_GLOBAL | BSF_WEAK)) | |
731 | == 0)))) | |
732 | *newsyms++ = symbol_ptr_ptr[i]; | |
733 | ||
734 | for (i = 0; i < symbol_count; i++) | |
735 | if ((symbol_ptr_ptr[i]->flags & BSF_NOT_AT_END) == 0 | |
736 | && !bfd_is_und_section (symbol_ptr_ptr[i]->section) | |
737 | && (bfd_is_com_section (symbol_ptr_ptr[i]->section) | |
738 | || ((symbol_ptr_ptr[i]->flags & BSF_FUNCTION) == 0 | |
739 | && ((symbol_ptr_ptr[i]->flags & (BSF_GLOBAL | BSF_WEAK)) | |
740 | != 0)))) | |
741 | *newsyms++ = symbol_ptr_ptr[i]; | |
742 | ||
743 | *first_undef = newsyms - bfd_ptr->outsymbols; | |
744 | ||
745 | for (i = 0; i < symbol_count; i++) | |
746 | if ((symbol_ptr_ptr[i]->flags & BSF_NOT_AT_END) == 0 | |
747 | && bfd_is_und_section (symbol_ptr_ptr[i]->section)) | |
748 | *newsyms++ = symbol_ptr_ptr[i]; | |
749 | *newsyms = (asymbol *) NULL; | |
750 | symbol_ptr_ptr = bfd_ptr->outsymbols; | |
751 | } | |
752 | ||
753 | for (symbol_index = 0; symbol_index < symbol_count; symbol_index++) | |
754 | { | |
f4943d82 | 755 | coff_symbol_type *coff_symbol_ptr; |
a5c71af8 | 756 | |
f4943d82 | 757 | coff_symbol_ptr = coff_symbol_from (symbol_ptr_ptr[symbol_index]); |
244148ad | 758 | symbol_ptr_ptr[symbol_index]->udata.i = symbol_index; |
252b5132 RH |
759 | if (coff_symbol_ptr && coff_symbol_ptr->native) |
760 | { | |
761 | combined_entry_type *s = coff_symbol_ptr->native; | |
762 | int i; | |
763 | ||
a5c71af8 | 764 | BFD_ASSERT (s->is_sym); |
252b5132 RH |
765 | if (s->u.syment.n_sclass == C_FILE) |
766 | { | |
c8e7bf0d | 767 | if (last_file != NULL) |
252b5132 RH |
768 | last_file->n_value = native_index; |
769 | last_file = &(s->u.syment); | |
770 | } | |
771 | else | |
c8e7bf0d NC |
772 | /* Modify the symbol values according to their section and |
773 | type. */ | |
774 | fixup_symbol_value (bfd_ptr, coff_symbol_ptr, &(s->u.syment)); | |
252b5132 | 775 | |
252b5132 RH |
776 | for (i = 0; i < s->u.syment.n_numaux + 1; i++) |
777 | s[i].offset = native_index++; | |
778 | } | |
779 | else | |
c8e7bf0d | 780 | native_index++; |
252b5132 | 781 | } |
c8e7bf0d | 782 | |
252b5132 RH |
783 | obj_conv_table_size (bfd_ptr) = native_index; |
784 | ||
b34976b6 | 785 | return TRUE; |
252b5132 RH |
786 | } |
787 | ||
788 | /* Run thorough the symbol table again, and fix it so that all | |
789 | pointers to entries are changed to the entries' index in the output | |
790 | symbol table. */ | |
791 | ||
792 | void | |
c8e7bf0d | 793 | coff_mangle_symbols (bfd *bfd_ptr) |
252b5132 RH |
794 | { |
795 | unsigned int symbol_count = bfd_get_symcount (bfd_ptr); | |
796 | asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols; | |
797 | unsigned int symbol_index; | |
798 | ||
799 | for (symbol_index = 0; symbol_index < symbol_count; symbol_index++) | |
800 | { | |
f4943d82 | 801 | coff_symbol_type *coff_symbol_ptr; |
252b5132 | 802 | |
f4943d82 | 803 | coff_symbol_ptr = coff_symbol_from (symbol_ptr_ptr[symbol_index]); |
252b5132 RH |
804 | if (coff_symbol_ptr && coff_symbol_ptr->native) |
805 | { | |
806 | int i; | |
807 | combined_entry_type *s = coff_symbol_ptr->native; | |
808 | ||
a5c71af8 | 809 | BFD_ASSERT (s->is_sym); |
252b5132 RH |
810 | if (s->fix_value) |
811 | { | |
812 | /* FIXME: We should use a union here. */ | |
dc810e39 | 813 | s->u.syment.n_value = |
d2df793a NC |
814 | (bfd_hostptr_t) ((combined_entry_type *) |
815 | ((bfd_hostptr_t) s->u.syment.n_value))->offset; | |
252b5132 RH |
816 | s->fix_value = 0; |
817 | } | |
818 | if (s->fix_line) | |
819 | { | |
820 | /* The value is the offset into the line number entries | |
821 | for the symbol's section. On output, the symbol's | |
822 | section should be N_DEBUG. */ | |
823 | s->u.syment.n_value = | |
824 | (coff_symbol_ptr->symbol.section->output_section->line_filepos | |
825 | + s->u.syment.n_value * bfd_coff_linesz (bfd_ptr)); | |
826 | coff_symbol_ptr->symbol.section = | |
827 | coff_section_from_bfd_index (bfd_ptr, N_DEBUG); | |
828 | BFD_ASSERT (coff_symbol_ptr->symbol.flags & BSF_DEBUGGING); | |
829 | } | |
830 | for (i = 0; i < s->u.syment.n_numaux; i++) | |
831 | { | |
832 | combined_entry_type *a = s + i + 1; | |
a5c71af8 NC |
833 | |
834 | BFD_ASSERT (! a->is_sym); | |
252b5132 RH |
835 | if (a->fix_tag) |
836 | { | |
837 | a->u.auxent.x_sym.x_tagndx.l = | |
838 | a->u.auxent.x_sym.x_tagndx.p->offset; | |
839 | a->fix_tag = 0; | |
840 | } | |
841 | if (a->fix_end) | |
842 | { | |
843 | a->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l = | |
844 | a->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p->offset; | |
845 | a->fix_end = 0; | |
846 | } | |
847 | if (a->fix_scnlen) | |
848 | { | |
849 | a->u.auxent.x_csect.x_scnlen.l = | |
850 | a->u.auxent.x_csect.x_scnlen.p->offset; | |
851 | a->fix_scnlen = 0; | |
852 | } | |
853 | } | |
854 | } | |
855 | } | |
856 | } | |
857 | ||
858 | static void | |
c8e7bf0d NC |
859 | coff_fix_symbol_name (bfd *abfd, |
860 | asymbol *symbol, | |
861 | combined_entry_type *native, | |
862 | bfd_size_type *string_size_p, | |
863 | asection **debug_string_section_p, | |
864 | bfd_size_type *debug_string_size_p) | |
252b5132 RH |
865 | { |
866 | unsigned int name_length; | |
867 | union internal_auxent *auxent; | |
868 | char *name = (char *) (symbol->name); | |
869 | ||
c8e7bf0d | 870 | if (name == NULL) |
252b5132 | 871 | { |
c8e7bf0d | 872 | /* COFF symbols always have names, so we'll make one up. */ |
252b5132 RH |
873 | symbol->name = "strange"; |
874 | name = (char *) symbol->name; | |
875 | } | |
876 | name_length = strlen (name); | |
877 | ||
a5c71af8 | 878 | BFD_ASSERT (native->is_sym); |
252b5132 RH |
879 | if (native->u.syment.n_sclass == C_FILE |
880 | && native->u.syment.n_numaux > 0) | |
881 | { | |
692b7d62 ILT |
882 | unsigned int filnmlen; |
883 | ||
7f6d05e8 CP |
884 | if (bfd_coff_force_symnames_in_strings (abfd)) |
885 | { | |
244148ad | 886 | native->u.syment._n._n_n._n_offset = |
7f6d05e8 CP |
887 | (*string_size_p + STRING_SIZE_SIZE); |
888 | native->u.syment._n._n_n._n_zeroes = 0; | |
889 | *string_size_p += 6; /* strlen(".file") + 1 */ | |
890 | } | |
891 | else | |
892 | strncpy (native->u.syment._n._n_name, ".file", SYMNMLEN); | |
893 | ||
a5c71af8 | 894 | BFD_ASSERT (! (native + 1)->is_sym); |
252b5132 RH |
895 | auxent = &(native + 1)->u.auxent; |
896 | ||
692b7d62 ILT |
897 | filnmlen = bfd_coff_filnmlen (abfd); |
898 | ||
252b5132 RH |
899 | if (bfd_coff_long_filenames (abfd)) |
900 | { | |
692b7d62 | 901 | if (name_length <= filnmlen) |
c8e7bf0d | 902 | strncpy (auxent->x_file.x_fname, name, filnmlen); |
252b5132 RH |
903 | else |
904 | { | |
905 | auxent->x_file.x_n.x_offset = *string_size_p + STRING_SIZE_SIZE; | |
906 | auxent->x_file.x_n.x_zeroes = 0; | |
907 | *string_size_p += name_length + 1; | |
908 | } | |
909 | } | |
910 | else | |
911 | { | |
692b7d62 ILT |
912 | strncpy (auxent->x_file.x_fname, name, filnmlen); |
913 | if (name_length > filnmlen) | |
914 | name[filnmlen] = '\0'; | |
252b5132 RH |
915 | } |
916 | } | |
917 | else | |
918 | { | |
7f6d05e8 | 919 | if (name_length <= SYMNMLEN && !bfd_coff_force_symnames_in_strings (abfd)) |
c8e7bf0d NC |
920 | /* This name will fit into the symbol neatly. */ |
921 | strncpy (native->u.syment._n._n_name, symbol->name, SYMNMLEN); | |
922 | ||
252b5132 RH |
923 | else if (!bfd_coff_symname_in_debug (abfd, &native->u.syment)) |
924 | { | |
925 | native->u.syment._n._n_n._n_offset = (*string_size_p | |
926 | + STRING_SIZE_SIZE); | |
927 | native->u.syment._n._n_n._n_zeroes = 0; | |
928 | *string_size_p += name_length + 1; | |
929 | } | |
930 | else | |
931 | { | |
dc810e39 | 932 | file_ptr filepos; |
7f6d05e8 CP |
933 | bfd_byte buf[4]; |
934 | int prefix_len = bfd_coff_debug_string_prefix_length (abfd); | |
252b5132 RH |
935 | |
936 | /* This name should be written into the .debug section. For | |
937 | some reason each name is preceded by a two byte length | |
938 | and also followed by a null byte. FIXME: We assume that | |
939 | the .debug section has already been created, and that it | |
940 | is large enough. */ | |
941 | if (*debug_string_section_p == (asection *) NULL) | |
942 | *debug_string_section_p = bfd_get_section_by_name (abfd, ".debug"); | |
943 | filepos = bfd_tell (abfd); | |
7f6d05e8 | 944 | if (prefix_len == 4) |
dc810e39 | 945 | bfd_put_32 (abfd, (bfd_vma) (name_length + 1), buf); |
7f6d05e8 | 946 | else |
dc810e39 | 947 | bfd_put_16 (abfd, (bfd_vma) (name_length + 1), buf); |
7f6d05e8 | 948 | |
252b5132 RH |
949 | if (!bfd_set_section_contents (abfd, |
950 | *debug_string_section_p, | |
c8e7bf0d | 951 | (void *) buf, |
252b5132 | 952 | (file_ptr) *debug_string_size_p, |
7f6d05e8 | 953 | (bfd_size_type) prefix_len) |
252b5132 RH |
954 | || !bfd_set_section_contents (abfd, |
955 | *debug_string_section_p, | |
c8e7bf0d | 956 | (void *) symbol->name, |
dc810e39 AM |
957 | (file_ptr) (*debug_string_size_p |
958 | + prefix_len), | |
252b5132 RH |
959 | (bfd_size_type) name_length + 1)) |
960 | abort (); | |
961 | if (bfd_seek (abfd, filepos, SEEK_SET) != 0) | |
962 | abort (); | |
244148ad | 963 | native->u.syment._n._n_n._n_offset = |
7f6d05e8 | 964 | *debug_string_size_p + prefix_len; |
252b5132 | 965 | native->u.syment._n._n_n._n_zeroes = 0; |
7f6d05e8 | 966 | *debug_string_size_p += name_length + 1 + prefix_len; |
252b5132 RH |
967 | } |
968 | } | |
969 | } | |
970 | ||
971 | /* We need to keep track of the symbol index so that when we write out | |
972 | the relocs we can get the index for a symbol. This method is a | |
973 | hack. FIXME. */ | |
974 | ||
975 | #define set_index(symbol, idx) ((symbol)->udata.i = (idx)) | |
976 | ||
977 | /* Write a symbol out to a COFF file. */ | |
978 | ||
b34976b6 | 979 | static bfd_boolean |
c8e7bf0d NC |
980 | coff_write_symbol (bfd *abfd, |
981 | asymbol *symbol, | |
982 | combined_entry_type *native, | |
983 | bfd_vma *written, | |
984 | bfd_size_type *string_size_p, | |
985 | asection **debug_string_section_p, | |
986 | bfd_size_type *debug_string_size_p) | |
252b5132 RH |
987 | { |
988 | unsigned int numaux = native->u.syment.n_numaux; | |
989 | int type = native->u.syment.n_type; | |
a50b1753 | 990 | int n_sclass = (int) native->u.syment.n_sclass; |
88e59394 DK |
991 | asection *output_section = symbol->section->output_section |
992 | ? symbol->section->output_section | |
993 | : symbol->section; | |
c8e7bf0d | 994 | void * buf; |
252b5132 RH |
995 | bfd_size_type symesz; |
996 | ||
a5c71af8 NC |
997 | BFD_ASSERT (native->is_sym); |
998 | ||
252b5132 RH |
999 | if (native->u.syment.n_sclass == C_FILE) |
1000 | symbol->flags |= BSF_DEBUGGING; | |
1001 | ||
1002 | if (symbol->flags & BSF_DEBUGGING | |
1003 | && bfd_is_abs_section (symbol->section)) | |
c8e7bf0d NC |
1004 | native->u.syment.n_scnum = N_DEBUG; |
1005 | ||
252b5132 | 1006 | else if (bfd_is_abs_section (symbol->section)) |
c8e7bf0d NC |
1007 | native->u.syment.n_scnum = N_ABS; |
1008 | ||
252b5132 | 1009 | else if (bfd_is_und_section (symbol->section)) |
c8e7bf0d NC |
1010 | native->u.syment.n_scnum = N_UNDEF; |
1011 | ||
252b5132 | 1012 | else |
c8e7bf0d | 1013 | native->u.syment.n_scnum = |
88e59394 | 1014 | output_section->target_index; |
252b5132 RH |
1015 | |
1016 | coff_fix_symbol_name (abfd, symbol, native, string_size_p, | |
1017 | debug_string_section_p, debug_string_size_p); | |
1018 | ||
1019 | symesz = bfd_coff_symesz (abfd); | |
1020 | buf = bfd_alloc (abfd, symesz); | |
1021 | if (!buf) | |
b34976b6 | 1022 | return FALSE; |
252b5132 | 1023 | bfd_coff_swap_sym_out (abfd, &native->u.syment, buf); |
dc810e39 | 1024 | if (bfd_bwrite (buf, symesz, abfd) != symesz) |
b34976b6 | 1025 | return FALSE; |
252b5132 RH |
1026 | bfd_release (abfd, buf); |
1027 | ||
1028 | if (native->u.syment.n_numaux > 0) | |
1029 | { | |
1030 | bfd_size_type auxesz; | |
1031 | unsigned int j; | |
1032 | ||
1033 | auxesz = bfd_coff_auxesz (abfd); | |
1034 | buf = bfd_alloc (abfd, auxesz); | |
1035 | if (!buf) | |
b34976b6 | 1036 | return FALSE; |
252b5132 RH |
1037 | for (j = 0; j < native->u.syment.n_numaux; j++) |
1038 | { | |
a5c71af8 | 1039 | BFD_ASSERT (! (native + j + 1)->is_sym); |
252b5132 RH |
1040 | bfd_coff_swap_aux_out (abfd, |
1041 | &((native + j + 1)->u.auxent), | |
96d56e9f | 1042 | type, n_sclass, (int) j, |
252b5132 RH |
1043 | native->u.syment.n_numaux, |
1044 | buf); | |
dc810e39 | 1045 | if (bfd_bwrite (buf, auxesz, abfd) != auxesz) |
b34976b6 | 1046 | return FALSE; |
252b5132 RH |
1047 | } |
1048 | bfd_release (abfd, buf); | |
1049 | } | |
1050 | ||
1051 | /* Store the index for use when we write out the relocs. */ | |
1052 | set_index (symbol, *written); | |
1053 | ||
1054 | *written += numaux + 1; | |
b34976b6 | 1055 | return TRUE; |
252b5132 RH |
1056 | } |
1057 | ||
1058 | /* Write out a symbol to a COFF file that does not come from a COFF | |
1059 | file originally. This symbol may have been created by the linker, | |
1060 | or we may be linking a non COFF file to a COFF file. */ | |
1061 | ||
e7ebb214 | 1062 | bfd_boolean |
c8e7bf0d NC |
1063 | coff_write_alien_symbol (bfd *abfd, |
1064 | asymbol *symbol, | |
e7ebb214 | 1065 | struct internal_syment *isym, |
c8e7bf0d NC |
1066 | bfd_vma *written, |
1067 | bfd_size_type *string_size_p, | |
1068 | asection **debug_string_section_p, | |
1069 | bfd_size_type *debug_string_size_p) | |
252b5132 RH |
1070 | { |
1071 | combined_entry_type *native; | |
e7ebb214 | 1072 | combined_entry_type dummy[2]; |
88e59394 DK |
1073 | asection *output_section = symbol->section->output_section |
1074 | ? symbol->section->output_section | |
1075 | : symbol->section; | |
07c7ed6d | 1076 | struct bfd_link_info *link_info = coff_data (abfd)->link_info; |
e7ebb214 | 1077 | bfd_boolean ret; |
252b5132 | 1078 | |
07c7ed6d KT |
1079 | if ((!link_info || link_info->strip_discarded) |
1080 | && !bfd_is_abs_section (symbol->section) | |
1081 | && symbol->section->output_section == bfd_abs_section_ptr) | |
1082 | { | |
1083 | symbol->name = ""; | |
e7ebb214 | 1084 | if (isym != NULL) |
a5c71af8 | 1085 | memset (isym, 0, sizeof (*isym)); |
07c7ed6d KT |
1086 | return TRUE; |
1087 | } | |
e7ebb214 | 1088 | native = dummy; |
a5c71af8 NC |
1089 | native->is_sym = TRUE; |
1090 | native[1].is_sym = FALSE; | |
252b5132 RH |
1091 | native->u.syment.n_type = T_NULL; |
1092 | native->u.syment.n_flags = 0; | |
e7ebb214 | 1093 | native->u.syment.n_numaux = 0; |
252b5132 RH |
1094 | if (bfd_is_und_section (symbol->section)) |
1095 | { | |
1096 | native->u.syment.n_scnum = N_UNDEF; | |
1097 | native->u.syment.n_value = symbol->value; | |
1098 | } | |
1099 | else if (bfd_is_com_section (symbol->section)) | |
1100 | { | |
1101 | native->u.syment.n_scnum = N_UNDEF; | |
1102 | native->u.syment.n_value = symbol->value; | |
1103 | } | |
e7ebb214 JB |
1104 | else if (symbol->flags & BSF_FILE) |
1105 | { | |
1106 | native->u.syment.n_scnum = N_DEBUG; | |
1107 | native->u.syment.n_numaux = 1; | |
1108 | } | |
252b5132 RH |
1109 | else if (symbol->flags & BSF_DEBUGGING) |
1110 | { | |
1111 | /* There isn't much point to writing out a debugging symbol | |
1112 | unless we are prepared to convert it into COFF debugging | |
1113 | format. So, we just ignore them. We must clobber the symbol | |
1114 | name to keep it from being put in the string table. */ | |
1115 | symbol->name = ""; | |
e7ebb214 | 1116 | if (isym != NULL) |
a5c71af8 | 1117 | memset (isym, 0, sizeof (*isym)); |
b34976b6 | 1118 | return TRUE; |
252b5132 RH |
1119 | } |
1120 | else | |
1121 | { | |
88e59394 | 1122 | native->u.syment.n_scnum = output_section->target_index; |
252b5132 RH |
1123 | native->u.syment.n_value = (symbol->value |
1124 | + symbol->section->output_offset); | |
1125 | if (! obj_pe (abfd)) | |
88e59394 | 1126 | native->u.syment.n_value += output_section->vma; |
252b5132 | 1127 | |
08da05b0 | 1128 | /* Copy the any flags from the file header into the symbol. |
252b5132 RH |
1129 | FIXME: Why? */ |
1130 | { | |
f4943d82 | 1131 | coff_symbol_type *c = coff_symbol_from (symbol); |
252b5132 RH |
1132 | if (c != (coff_symbol_type *) NULL) |
1133 | native->u.syment.n_flags = bfd_asymbol_bfd (&c->symbol)->flags; | |
1134 | } | |
1135 | } | |
1136 | ||
1137 | native->u.syment.n_type = 0; | |
e7ebb214 JB |
1138 | if (symbol->flags & BSF_FILE) |
1139 | native->u.syment.n_sclass = C_FILE; | |
1140 | else if (symbol->flags & BSF_LOCAL) | |
252b5132 RH |
1141 | native->u.syment.n_sclass = C_STAT; |
1142 | else if (symbol->flags & BSF_WEAK) | |
1143 | native->u.syment.n_sclass = obj_pe (abfd) ? C_NT_WEAK : C_WEAKEXT; | |
1144 | else | |
1145 | native->u.syment.n_sclass = C_EXT; | |
252b5132 | 1146 | |
e7ebb214 JB |
1147 | ret = coff_write_symbol (abfd, symbol, native, written, string_size_p, |
1148 | debug_string_section_p, debug_string_size_p); | |
1149 | if (isym != NULL) | |
1150 | *isym = native->u.syment; | |
1151 | return ret; | |
252b5132 RH |
1152 | } |
1153 | ||
1154 | /* Write a native symbol to a COFF file. */ | |
1155 | ||
b34976b6 | 1156 | static bfd_boolean |
c8e7bf0d NC |
1157 | coff_write_native_symbol (bfd *abfd, |
1158 | coff_symbol_type *symbol, | |
1159 | bfd_vma *written, | |
1160 | bfd_size_type *string_size_p, | |
1161 | asection **debug_string_section_p, | |
1162 | bfd_size_type *debug_string_size_p) | |
252b5132 RH |
1163 | { |
1164 | combined_entry_type *native = symbol->native; | |
1165 | alent *lineno = symbol->lineno; | |
07c7ed6d KT |
1166 | struct bfd_link_info *link_info = coff_data (abfd)->link_info; |
1167 | ||
1168 | if ((!link_info || link_info->strip_discarded) | |
1169 | && !bfd_is_abs_section (symbol->symbol.section) | |
1170 | && symbol->symbol.section->output_section == bfd_abs_section_ptr) | |
1171 | { | |
1172 | symbol->symbol.name = ""; | |
1173 | return TRUE; | |
1174 | } | |
252b5132 | 1175 | |
a5c71af8 | 1176 | BFD_ASSERT (native->is_sym); |
252b5132 RH |
1177 | /* If this symbol has an associated line number, we must store the |
1178 | symbol index in the line number field. We also tag the auxent to | |
1179 | point to the right place in the lineno table. */ | |
1180 | if (lineno && !symbol->done_lineno && symbol->symbol.section->owner != NULL) | |
1181 | { | |
1182 | unsigned int count = 0; | |
c8e7bf0d | 1183 | |
252b5132 RH |
1184 | lineno[count].u.offset = *written; |
1185 | if (native->u.syment.n_numaux) | |
1186 | { | |
1187 | union internal_auxent *a = &((native + 1)->u.auxent); | |
1188 | ||
1189 | a->x_sym.x_fcnary.x_fcn.x_lnnoptr = | |
1190 | symbol->symbol.section->output_section->moving_line_filepos; | |
1191 | } | |
1192 | ||
1193 | /* Count and relocate all other linenumbers. */ | |
1194 | count++; | |
1195 | while (lineno[count].line_number != 0) | |
1196 | { | |
252b5132 RH |
1197 | lineno[count].u.offset += |
1198 | (symbol->symbol.section->output_section->vma | |
1199 | + symbol->symbol.section->output_offset); | |
252b5132 RH |
1200 | count++; |
1201 | } | |
b34976b6 | 1202 | symbol->done_lineno = TRUE; |
252b5132 | 1203 | |
84c254c6 NC |
1204 | if (! bfd_is_const_section (symbol->symbol.section->output_section)) |
1205 | symbol->symbol.section->output_section->moving_line_filepos += | |
1206 | count * bfd_coff_linesz (abfd); | |
252b5132 RH |
1207 | } |
1208 | ||
1209 | return coff_write_symbol (abfd, &(symbol->symbol), native, written, | |
1210 | string_size_p, debug_string_section_p, | |
1211 | debug_string_size_p); | |
1212 | } | |
1213 | ||
e144674a NC |
1214 | static void |
1215 | null_error_handler (const char * fmt ATTRIBUTE_UNUSED, ...) | |
1216 | { | |
1217 | } | |
1218 | ||
252b5132 RH |
1219 | /* Write out the COFF symbols. */ |
1220 | ||
b34976b6 | 1221 | bfd_boolean |
c8e7bf0d | 1222 | coff_write_symbols (bfd *abfd) |
252b5132 RH |
1223 | { |
1224 | bfd_size_type string_size; | |
1225 | asection *debug_string_section; | |
1226 | bfd_size_type debug_string_size; | |
1227 | unsigned int i; | |
1228 | unsigned int limit = bfd_get_symcount (abfd); | |
f075ee0c | 1229 | bfd_vma written = 0; |
252b5132 RH |
1230 | asymbol **p; |
1231 | ||
1232 | string_size = 0; | |
1233 | debug_string_section = NULL; | |
1234 | debug_string_size = 0; | |
1235 | ||
1236 | /* If this target supports long section names, they must be put into | |
1237 | the string table. This is supported by PE. This code must | |
1238 | handle section names just as they are handled in | |
1239 | coff_write_object_contents. */ | |
1240 | if (bfd_coff_long_section_names (abfd)) | |
1241 | { | |
1242 | asection *o; | |
1243 | ||
1244 | for (o = abfd->sections; o != NULL; o = o->next) | |
1245 | { | |
1246 | size_t len; | |
1247 | ||
1248 | len = strlen (o->name); | |
1249 | if (len > SCNNMLEN) | |
1250 | string_size += len + 1; | |
1251 | } | |
1252 | } | |
1253 | ||
c8e7bf0d | 1254 | /* Seek to the right place. */ |
252b5132 | 1255 | if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0) |
b34976b6 | 1256 | return FALSE; |
252b5132 | 1257 | |
c8e7bf0d | 1258 | /* Output all the symbols we have. */ |
252b5132 RH |
1259 | written = 0; |
1260 | for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) | |
1261 | { | |
1262 | asymbol *symbol = *p; | |
f4943d82 | 1263 | coff_symbol_type *c_symbol = coff_symbol_from (symbol); |
252b5132 RH |
1264 | |
1265 | if (c_symbol == (coff_symbol_type *) NULL | |
1266 | || c_symbol->native == (combined_entry_type *) NULL) | |
1267 | { | |
e7ebb214 JB |
1268 | if (!coff_write_alien_symbol (abfd, symbol, NULL, &written, |
1269 | &string_size, &debug_string_section, | |
252b5132 | 1270 | &debug_string_size)) |
b34976b6 | 1271 | return FALSE; |
252b5132 RH |
1272 | } |
1273 | else | |
1274 | { | |
e144674a NC |
1275 | if (coff_backend_info (abfd)->_bfd_coff_classify_symbol != NULL) |
1276 | { | |
1277 | bfd_error_handler_type current_error_handler; | |
96d56e9f | 1278 | enum coff_symbol_classification sym_class; |
e144674a NC |
1279 | unsigned char *n_sclass; |
1280 | ||
1281 | /* Suppress error reporting by bfd_coff_classify_symbol. | |
1282 | Error messages can be generated when we are processing a local | |
1283 | symbol which has no associated section and we do not have to | |
1284 | worry about this, all we need to know is that it is local. */ | |
1285 | current_error_handler = bfd_set_error_handler (null_error_handler); | |
a5c71af8 | 1286 | BFD_ASSERT (c_symbol->native->is_sym); |
96d56e9f | 1287 | sym_class = bfd_coff_classify_symbol (abfd, |
a5c71af8 | 1288 | &c_symbol->native->u.syment); |
e144674a | 1289 | (void) bfd_set_error_handler (current_error_handler); |
96d56e9f | 1290 | |
e144674a NC |
1291 | n_sclass = &c_symbol->native->u.syment.n_sclass; |
1292 | ||
1293 | /* If the symbol class has been changed (eg objcopy/ld script/etc) | |
1294 | we cannot retain the existing sclass from the original symbol. | |
1295 | Weak symbols only have one valid sclass, so just set it always. | |
1296 | If it is not local class and should be, set it C_STAT. | |
1297 | If it is global and not classified as global, or if it is | |
1298 | weak (which is also classified as global), set it C_EXT. */ | |
1299 | ||
1300 | if (symbol->flags & BSF_WEAK) | |
1301 | *n_sclass = obj_pe (abfd) ? C_NT_WEAK : C_WEAKEXT; | |
96d56e9f | 1302 | else if (symbol->flags & BSF_LOCAL && sym_class != COFF_SYMBOL_LOCAL) |
e144674a NC |
1303 | *n_sclass = C_STAT; |
1304 | else if (symbol->flags & BSF_GLOBAL | |
96d56e9f | 1305 | && (sym_class != COFF_SYMBOL_GLOBAL |
e144674a NC |
1306 | #ifdef COFF_WITH_PE |
1307 | || *n_sclass == C_NT_WEAK | |
1308 | #endif | |
1309 | || *n_sclass == C_WEAKEXT)) | |
1310 | c_symbol->native->u.syment.n_sclass = C_EXT; | |
1311 | } | |
1312 | ||
252b5132 RH |
1313 | if (!coff_write_native_symbol (abfd, c_symbol, &written, |
1314 | &string_size, &debug_string_section, | |
1315 | &debug_string_size)) | |
b34976b6 | 1316 | return FALSE; |
252b5132 RH |
1317 | } |
1318 | } | |
1319 | ||
1320 | obj_raw_syment_count (abfd) = written; | |
1321 | ||
c8e7bf0d | 1322 | /* Now write out strings. */ |
252b5132 RH |
1323 | if (string_size != 0) |
1324 | { | |
1325 | unsigned int size = string_size + STRING_SIZE_SIZE; | |
1326 | bfd_byte buffer[STRING_SIZE_SIZE]; | |
1327 | ||
1328 | #if STRING_SIZE_SIZE == 4 | |
dc810e39 | 1329 | H_PUT_32 (abfd, size, buffer); |
252b5132 | 1330 | #else |
dc810e39 | 1331 | #error Change H_PUT_32 |
252b5132 | 1332 | #endif |
c8e7bf0d | 1333 | if (bfd_bwrite ((void *) buffer, (bfd_size_type) sizeof (buffer), abfd) |
dc810e39 | 1334 | != sizeof (buffer)) |
b34976b6 | 1335 | return FALSE; |
252b5132 RH |
1336 | |
1337 | /* Handle long section names. This code must handle section | |
1338 | names just as they are handled in coff_write_object_contents. */ | |
1339 | if (bfd_coff_long_section_names (abfd)) | |
1340 | { | |
1341 | asection *o; | |
1342 | ||
1343 | for (o = abfd->sections; o != NULL; o = o->next) | |
1344 | { | |
1345 | size_t len; | |
1346 | ||
1347 | len = strlen (o->name); | |
1348 | if (len > SCNNMLEN) | |
1349 | { | |
dc810e39 AM |
1350 | if (bfd_bwrite (o->name, (bfd_size_type) (len + 1), abfd) |
1351 | != len + 1) | |
b34976b6 | 1352 | return FALSE; |
252b5132 RH |
1353 | } |
1354 | } | |
1355 | } | |
1356 | ||
1357 | for (p = abfd->outsymbols, i = 0; | |
1358 | i < limit; | |
1359 | i++, p++) | |
1360 | { | |
1361 | asymbol *q = *p; | |
1362 | size_t name_length = strlen (q->name); | |
f4943d82 | 1363 | coff_symbol_type *c_symbol = coff_symbol_from (q); |
252b5132 RH |
1364 | size_t maxlen; |
1365 | ||
1366 | /* Figure out whether the symbol name should go in the string | |
1367 | table. Symbol names that are short enough are stored | |
1368 | directly in the syment structure. File names permit a | |
1369 | different, longer, length in the syment structure. On | |
1370 | XCOFF, some symbol names are stored in the .debug section | |
1371 | rather than in the string table. */ | |
1372 | ||
1373 | if (c_symbol == NULL | |
1374 | || c_symbol->native == NULL) | |
c8e7bf0d NC |
1375 | /* This is not a COFF symbol, so it certainly is not a |
1376 | file name, nor does it go in the .debug section. */ | |
1377 | maxlen = bfd_coff_force_symnames_in_strings (abfd) ? 0 : SYMNMLEN; | |
1378 | ||
a5c71af8 NC |
1379 | else if (! c_symbol->native->is_sym) |
1380 | maxlen = bfd_coff_force_symnames_in_strings (abfd) ? 0 : SYMNMLEN; | |
1381 | ||
252b5132 RH |
1382 | else if (bfd_coff_symname_in_debug (abfd, |
1383 | &c_symbol->native->u.syment)) | |
c8e7bf0d NC |
1384 | /* This symbol name is in the XCOFF .debug section. |
1385 | Don't write it into the string table. */ | |
1386 | maxlen = name_length; | |
1387 | ||
252b5132 RH |
1388 | else if (c_symbol->native->u.syment.n_sclass == C_FILE |
1389 | && c_symbol->native->u.syment.n_numaux > 0) | |
7f6d05e8 | 1390 | { |
244148ad | 1391 | if (bfd_coff_force_symnames_in_strings (abfd)) |
dc810e39 AM |
1392 | { |
1393 | if (bfd_bwrite (".file", (bfd_size_type) 6, abfd) != 6) | |
b34976b6 | 1394 | return FALSE; |
dc810e39 | 1395 | } |
7f6d05e8 CP |
1396 | maxlen = bfd_coff_filnmlen (abfd); |
1397 | } | |
252b5132 | 1398 | else |
7f6d05e8 | 1399 | maxlen = bfd_coff_force_symnames_in_strings (abfd) ? 0 : SYMNMLEN; |
252b5132 RH |
1400 | |
1401 | if (name_length > maxlen) | |
1402 | { | |
c8e7bf0d | 1403 | if (bfd_bwrite ((void *) (q->name), (bfd_size_type) name_length + 1, |
dc810e39 | 1404 | abfd) != name_length + 1) |
b34976b6 | 1405 | return FALSE; |
252b5132 RH |
1406 | } |
1407 | } | |
1408 | } | |
1409 | else | |
1410 | { | |
1411 | /* We would normally not write anything here, but we'll write | |
1412 | out 4 so that any stupid coff reader which tries to read the | |
1413 | string table even when there isn't one won't croak. */ | |
1414 | unsigned int size = STRING_SIZE_SIZE; | |
1415 | bfd_byte buffer[STRING_SIZE_SIZE]; | |
1416 | ||
1417 | #if STRING_SIZE_SIZE == 4 | |
dc810e39 | 1418 | H_PUT_32 (abfd, size, buffer); |
252b5132 | 1419 | #else |
dc810e39 | 1420 | #error Change H_PUT_32 |
252b5132 | 1421 | #endif |
c8e7bf0d | 1422 | if (bfd_bwrite ((void *) buffer, (bfd_size_type) STRING_SIZE_SIZE, abfd) |
252b5132 | 1423 | != STRING_SIZE_SIZE) |
b34976b6 | 1424 | return FALSE; |
252b5132 RH |
1425 | } |
1426 | ||
1427 | /* Make sure the .debug section was created to be the correct size. | |
1428 | We should create it ourselves on the fly, but we don't because | |
1429 | BFD won't let us write to any section until we know how large all | |
1430 | the sections are. We could still do it by making another pass | |
1431 | over the symbols. FIXME. */ | |
1432 | BFD_ASSERT (debug_string_size == 0 | |
1433 | || (debug_string_section != (asection *) NULL | |
1434 | && (BFD_ALIGN (debug_string_size, | |
1435 | 1 << debug_string_section->alignment_power) | |
eea6121a | 1436 | == debug_string_section->size))); |
252b5132 | 1437 | |
b34976b6 | 1438 | return TRUE; |
252b5132 RH |
1439 | } |
1440 | ||
b34976b6 | 1441 | bfd_boolean |
c8e7bf0d | 1442 | coff_write_linenumbers (bfd *abfd) |
252b5132 RH |
1443 | { |
1444 | asection *s; | |
1445 | bfd_size_type linesz; | |
c8e7bf0d | 1446 | void * buff; |
252b5132 RH |
1447 | |
1448 | linesz = bfd_coff_linesz (abfd); | |
1449 | buff = bfd_alloc (abfd, linesz); | |
1450 | if (!buff) | |
b34976b6 | 1451 | return FALSE; |
252b5132 RH |
1452 | for (s = abfd->sections; s != (asection *) NULL; s = s->next) |
1453 | { | |
1454 | if (s->lineno_count) | |
1455 | { | |
1456 | asymbol **q = abfd->outsymbols; | |
1457 | if (bfd_seek (abfd, s->line_filepos, SEEK_SET) != 0) | |
b34976b6 | 1458 | return FALSE; |
c8e7bf0d | 1459 | /* Find all the linenumbers in this section. */ |
252b5132 RH |
1460 | while (*q) |
1461 | { | |
1462 | asymbol *p = *q; | |
1463 | if (p->section->output_section == s) | |
1464 | { | |
1465 | alent *l = | |
1466 | BFD_SEND (bfd_asymbol_bfd (p), _get_lineno, | |
1467 | (bfd_asymbol_bfd (p), p)); | |
1468 | if (l) | |
1469 | { | |
c8e7bf0d | 1470 | /* Found a linenumber entry, output. */ |
252b5132 | 1471 | struct internal_lineno out; |
a5c71af8 | 1472 | |
c8e7bf0d | 1473 | memset ((void *) & out, 0, sizeof (out)); |
252b5132 RH |
1474 | out.l_lnno = 0; |
1475 | out.l_addr.l_symndx = l->u.offset; | |
1476 | bfd_coff_swap_lineno_out (abfd, &out, buff); | |
dc810e39 AM |
1477 | if (bfd_bwrite (buff, (bfd_size_type) linesz, abfd) |
1478 | != linesz) | |
b34976b6 | 1479 | return FALSE; |
252b5132 RH |
1480 | l++; |
1481 | while (l->line_number) | |
1482 | { | |
1483 | out.l_lnno = l->line_number; | |
1484 | out.l_addr.l_symndx = l->u.offset; | |
1485 | bfd_coff_swap_lineno_out (abfd, &out, buff); | |
dc810e39 AM |
1486 | if (bfd_bwrite (buff, (bfd_size_type) linesz, abfd) |
1487 | != linesz) | |
b34976b6 | 1488 | return FALSE; |
252b5132 RH |
1489 | l++; |
1490 | } | |
1491 | } | |
1492 | } | |
1493 | q++; | |
1494 | } | |
1495 | } | |
1496 | } | |
1497 | bfd_release (abfd, buff); | |
b34976b6 | 1498 | return TRUE; |
252b5132 RH |
1499 | } |
1500 | ||
252b5132 | 1501 | alent * |
c8e7bf0d | 1502 | coff_get_lineno (bfd *ignore_abfd ATTRIBUTE_UNUSED, asymbol *symbol) |
252b5132 RH |
1503 | { |
1504 | return coffsymbol (symbol)->lineno; | |
1505 | } | |
1506 | ||
252b5132 RH |
1507 | /* This function transforms the offsets into the symbol table into |
1508 | pointers to syments. */ | |
1509 | ||
1510 | static void | |
c8e7bf0d NC |
1511 | coff_pointerize_aux (bfd *abfd, |
1512 | combined_entry_type *table_base, | |
1513 | combined_entry_type *symbol, | |
1514 | unsigned int indaux, | |
1515 | combined_entry_type *auxent) | |
252b5132 RH |
1516 | { |
1517 | unsigned int type = symbol->u.syment.n_type; | |
96d56e9f | 1518 | unsigned int n_sclass = symbol->u.syment.n_sclass; |
252b5132 | 1519 | |
a5c71af8 | 1520 | BFD_ASSERT (symbol->is_sym); |
252b5132 RH |
1521 | if (coff_backend_info (abfd)->_bfd_coff_pointerize_aux_hook) |
1522 | { | |
1523 | if ((*coff_backend_info (abfd)->_bfd_coff_pointerize_aux_hook) | |
1524 | (abfd, table_base, symbol, indaux, auxent)) | |
1525 | return; | |
1526 | } | |
1527 | ||
c8e7bf0d | 1528 | /* Don't bother if this is a file or a section. */ |
96d56e9f | 1529 | if (n_sclass == C_STAT && type == T_NULL) |
252b5132 | 1530 | return; |
96d56e9f | 1531 | if (n_sclass == C_FILE) |
252b5132 RH |
1532 | return; |
1533 | ||
a5c71af8 | 1534 | BFD_ASSERT (! auxent->is_sym); |
c8e7bf0d NC |
1535 | /* Otherwise patch up. */ |
1536 | #define N_TMASK coff_data (abfd)->local_n_tmask | |
252b5132 | 1537 | #define N_BTSHFT coff_data (abfd)->local_n_btshft |
68ffbac6 | 1538 | |
96d56e9f NC |
1539 | if ((ISFCN (type) || ISTAG (n_sclass) || n_sclass == C_BLOCK |
1540 | || n_sclass == C_FCN) | |
252b5132 RH |
1541 | && auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l > 0) |
1542 | { | |
1543 | auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p = | |
1544 | table_base + auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l; | |
1545 | auxent->fix_end = 1; | |
1546 | } | |
1547 | /* A negative tagndx is meaningless, but the SCO 3.2v4 cc can | |
1548 | generate one, so we must be careful to ignore it. */ | |
1549 | if (auxent->u.auxent.x_sym.x_tagndx.l > 0) | |
1550 | { | |
1551 | auxent->u.auxent.x_sym.x_tagndx.p = | |
1552 | table_base + auxent->u.auxent.x_sym.x_tagndx.l; | |
1553 | auxent->fix_tag = 1; | |
1554 | } | |
1555 | } | |
1556 | ||
1557 | /* Allocate space for the ".debug" section, and read it. | |
1558 | We did not read the debug section until now, because | |
244148ad | 1559 | we didn't want to go to the trouble until someone needed it. */ |
252b5132 RH |
1560 | |
1561 | static char * | |
5a3f568b | 1562 | build_debug_section (bfd *abfd, asection ** sect_return) |
252b5132 RH |
1563 | { |
1564 | char *debug_section; | |
dc810e39 AM |
1565 | file_ptr position; |
1566 | bfd_size_type sec_size; | |
252b5132 RH |
1567 | |
1568 | asection *sect = bfd_get_section_by_name (abfd, ".debug"); | |
1569 | ||
1570 | if (!sect) | |
1571 | { | |
1572 | bfd_set_error (bfd_error_no_debug_section); | |
1573 | return NULL; | |
1574 | } | |
1575 | ||
eea6121a | 1576 | sec_size = sect->size; |
a50b1753 | 1577 | debug_section = (char *) bfd_alloc (abfd, sec_size); |
252b5132 RH |
1578 | if (debug_section == NULL) |
1579 | return NULL; | |
1580 | ||
244148ad | 1581 | /* Seek to the beginning of the `.debug' section and read it. |
252b5132 RH |
1582 | Save the current position first; it is needed by our caller. |
1583 | Then read debug section and reset the file pointer. */ | |
1584 | ||
1585 | position = bfd_tell (abfd); | |
1586 | if (bfd_seek (abfd, sect->filepos, SEEK_SET) != 0 | |
dc810e39 | 1587 | || bfd_bread (debug_section, sec_size, abfd) != sec_size |
252b5132 RH |
1588 | || bfd_seek (abfd, position, SEEK_SET) != 0) |
1589 | return NULL; | |
5a3f568b NC |
1590 | |
1591 | * sect_return = sect; | |
252b5132 RH |
1592 | return debug_section; |
1593 | } | |
1594 | ||
252b5132 RH |
1595 | /* Return a pointer to a malloc'd copy of 'name'. 'name' may not be |
1596 | \0-terminated, but will not exceed 'maxlen' characters. The copy *will* | |
1597 | be \0-terminated. */ | |
c8e7bf0d | 1598 | |
252b5132 | 1599 | static char * |
c8e7bf0d | 1600 | copy_name (bfd *abfd, char *name, size_t maxlen) |
252b5132 | 1601 | { |
dc810e39 | 1602 | size_t len; |
252b5132 RH |
1603 | char *newname; |
1604 | ||
1605 | for (len = 0; len < maxlen; ++len) | |
c8e7bf0d NC |
1606 | if (name[len] == '\0') |
1607 | break; | |
1608 | ||
a50b1753 | 1609 | if ((newname = (char *) bfd_alloc (abfd, (bfd_size_type) len + 1)) == NULL) |
c8e7bf0d | 1610 | return NULL; |
252b5132 | 1611 | |
252b5132 RH |
1612 | strncpy (newname, name, len); |
1613 | newname[len] = '\0'; | |
1614 | return newname; | |
1615 | } | |
1616 | ||
1617 | /* Read in the external symbols. */ | |
1618 | ||
b34976b6 | 1619 | bfd_boolean |
c8e7bf0d | 1620 | _bfd_coff_get_external_symbols (bfd *abfd) |
252b5132 RH |
1621 | { |
1622 | bfd_size_type symesz; | |
dc810e39 | 1623 | bfd_size_type size; |
c8e7bf0d | 1624 | void * syms; |
252b5132 RH |
1625 | |
1626 | if (obj_coff_external_syms (abfd) != NULL) | |
b34976b6 | 1627 | return TRUE; |
252b5132 RH |
1628 | |
1629 | symesz = bfd_coff_symesz (abfd); | |
1630 | ||
1631 | size = obj_raw_syment_count (abfd) * symesz; | |
353c5574 MS |
1632 | if (size == 0) |
1633 | return TRUE; | |
252b5132 | 1634 | |
c8e7bf0d | 1635 | syms = bfd_malloc (size); |
353c5574 | 1636 | if (syms == NULL) |
b34976b6 | 1637 | return FALSE; |
252b5132 RH |
1638 | |
1639 | if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0 | |
dc810e39 | 1640 | || bfd_bread (syms, size, abfd) != size) |
252b5132 RH |
1641 | { |
1642 | if (syms != NULL) | |
1643 | free (syms); | |
b34976b6 | 1644 | return FALSE; |
252b5132 RH |
1645 | } |
1646 | ||
1647 | obj_coff_external_syms (abfd) = syms; | |
1648 | ||
b34976b6 | 1649 | return TRUE; |
252b5132 RH |
1650 | } |
1651 | ||
1652 | /* Read in the external strings. The strings are not loaded until | |
1653 | they are needed. This is because we have no simple way of | |
5a3f568b NC |
1654 | detecting a missing string table in an archive. If the strings |
1655 | are loaded then the STRINGS and STRINGS_LEN fields in the | |
1656 | coff_tdata structure will be set. */ | |
252b5132 RH |
1657 | |
1658 | const char * | |
c8e7bf0d | 1659 | _bfd_coff_read_string_table (bfd *abfd) |
252b5132 RH |
1660 | { |
1661 | char extstrsize[STRING_SIZE_SIZE]; | |
dc810e39 | 1662 | bfd_size_type strsize; |
252b5132 | 1663 | char *strings; |
dc810e39 | 1664 | file_ptr pos; |
252b5132 RH |
1665 | |
1666 | if (obj_coff_strings (abfd) != NULL) | |
1667 | return obj_coff_strings (abfd); | |
1668 | ||
1669 | if (obj_sym_filepos (abfd) == 0) | |
1670 | { | |
1671 | bfd_set_error (bfd_error_no_symbols); | |
1672 | return NULL; | |
1673 | } | |
1674 | ||
dc810e39 AM |
1675 | pos = obj_sym_filepos (abfd); |
1676 | pos += obj_raw_syment_count (abfd) * bfd_coff_symesz (abfd); | |
1677 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) | |
252b5132 | 1678 | return NULL; |
244148ad | 1679 | |
dc810e39 AM |
1680 | if (bfd_bread (extstrsize, (bfd_size_type) sizeof extstrsize, abfd) |
1681 | != sizeof extstrsize) | |
252b5132 RH |
1682 | { |
1683 | if (bfd_get_error () != bfd_error_file_truncated) | |
1684 | return NULL; | |
1685 | ||
1686 | /* There is no string table. */ | |
1687 | strsize = STRING_SIZE_SIZE; | |
1688 | } | |
1689 | else | |
1690 | { | |
1691 | #if STRING_SIZE_SIZE == 4 | |
dc810e39 | 1692 | strsize = H_GET_32 (abfd, extstrsize); |
252b5132 | 1693 | #else |
dc810e39 | 1694 | #error Change H_GET_32 |
252b5132 RH |
1695 | #endif |
1696 | } | |
1697 | ||
1698 | if (strsize < STRING_SIZE_SIZE) | |
1699 | { | |
1700 | (*_bfd_error_handler) | |
d003868e | 1701 | (_("%B: bad string table size %lu"), abfd, (unsigned long) strsize); |
252b5132 RH |
1702 | bfd_set_error (bfd_error_bad_value); |
1703 | return NULL; | |
1704 | } | |
1705 | ||
36e9d67b | 1706 | strings = (char *) bfd_malloc (strsize + 1); |
cd11f78f AC |
1707 | if (strings == NULL) |
1708 | return NULL; | |
1709 | ||
36e9d67b NC |
1710 | /* PR 17521 file: 079-54929-0.004. |
1711 | A corrupt file could contain an index that points into the first | |
1712 | STRING_SIZE_SIZE bytes of the string table, so make sure that | |
1713 | they are zero. */ | |
1714 | memset (strings, 0, STRING_SIZE_SIZE); | |
1715 | ||
dc810e39 | 1716 | if (bfd_bread (strings + STRING_SIZE_SIZE, strsize - STRING_SIZE_SIZE, abfd) |
252b5132 RH |
1717 | != strsize - STRING_SIZE_SIZE) |
1718 | { | |
1719 | free (strings); | |
1720 | return NULL; | |
1721 | } | |
1722 | ||
1723 | obj_coff_strings (abfd) = strings; | |
5a3f568b | 1724 | obj_coff_strings_len (abfd) = strsize; |
36e9d67b NC |
1725 | /* Terminate the string table, just in case. */ |
1726 | strings[strsize] = 0; | |
252b5132 RH |
1727 | return strings; |
1728 | } | |
1729 | ||
1730 | /* Free up the external symbols and strings read from a COFF file. */ | |
1731 | ||
b34976b6 | 1732 | bfd_boolean |
c8e7bf0d | 1733 | _bfd_coff_free_symbols (bfd *abfd) |
252b5132 RH |
1734 | { |
1735 | if (obj_coff_external_syms (abfd) != NULL | |
1736 | && ! obj_coff_keep_syms (abfd)) | |
1737 | { | |
1738 | free (obj_coff_external_syms (abfd)); | |
1739 | obj_coff_external_syms (abfd) = NULL; | |
1740 | } | |
1741 | if (obj_coff_strings (abfd) != NULL | |
1742 | && ! obj_coff_keep_strings (abfd)) | |
1743 | { | |
1744 | free (obj_coff_strings (abfd)); | |
1745 | obj_coff_strings (abfd) = NULL; | |
5a3f568b | 1746 | obj_coff_strings_len (abfd) = 0; |
252b5132 | 1747 | } |
b34976b6 | 1748 | return TRUE; |
252b5132 RH |
1749 | } |
1750 | ||
1751 | /* Read a symbol table into freshly bfd_allocated memory, swap it, and | |
1752 | knit the symbol names into a normalized form. By normalized here I | |
1753 | mean that all symbols have an n_offset pointer that points to a null- | |
1754 | terminated string. */ | |
1755 | ||
1756 | combined_entry_type * | |
c8e7bf0d | 1757 | coff_get_normalized_symtab (bfd *abfd) |
252b5132 RH |
1758 | { |
1759 | combined_entry_type *internal; | |
1760 | combined_entry_type *internal_ptr; | |
1761 | combined_entry_type *symbol_ptr; | |
1762 | combined_entry_type *internal_end; | |
dc810e39 | 1763 | size_t symesz; |
252b5132 RH |
1764 | char *raw_src; |
1765 | char *raw_end; | |
1766 | const char *string_table = NULL; | |
5a3f568b NC |
1767 | asection * debug_sec = NULL; |
1768 | char *debug_sec_data = NULL; | |
dc810e39 | 1769 | bfd_size_type size; |
252b5132 RH |
1770 | |
1771 | if (obj_raw_syments (abfd) != NULL) | |
1772 | return obj_raw_syments (abfd); | |
1773 | ||
201159ec NC |
1774 | if (! _bfd_coff_get_external_symbols (abfd)) |
1775 | return NULL; | |
1776 | ||
40572405 | 1777 | size = obj_raw_syment_count (abfd) * sizeof (combined_entry_type); |
a50b1753 | 1778 | internal = (combined_entry_type *) bfd_zalloc (abfd, size); |
252b5132 RH |
1779 | if (internal == NULL && size != 0) |
1780 | return NULL; | |
1781 | internal_end = internal + obj_raw_syment_count (abfd); | |
7e760b06 | 1782 | |
252b5132 RH |
1783 | raw_src = (char *) obj_coff_external_syms (abfd); |
1784 | ||
c8e7bf0d | 1785 | /* Mark the end of the symbols. */ |
252b5132 RH |
1786 | symesz = bfd_coff_symesz (abfd); |
1787 | raw_end = (char *) raw_src + obj_raw_syment_count (abfd) * symesz; | |
1788 | ||
1789 | /* FIXME SOMEDAY. A string table size of zero is very weird, but | |
1790 | probably possible. If one shows up, it will probably kill us. */ | |
1791 | ||
c8e7bf0d | 1792 | /* Swap all the raw entries. */ |
252b5132 RH |
1793 | for (internal_ptr = internal; |
1794 | raw_src < raw_end; | |
1795 | raw_src += symesz, internal_ptr++) | |
1796 | { | |
252b5132 | 1797 | unsigned int i; |
7e760b06 | 1798 | |
c8e7bf0d NC |
1799 | bfd_coff_swap_sym_in (abfd, (void *) raw_src, |
1800 | (void *) & internal_ptr->u.syment); | |
252b5132 | 1801 | symbol_ptr = internal_ptr; |
a5c71af8 | 1802 | internal_ptr->is_sym = TRUE; |
252b5132 | 1803 | |
0a9d414a NC |
1804 | /* PR 17512: file: 1353-1166-0.004. */ |
1805 | if (symbol_ptr->u.syment.n_sclass == C_FILE | |
1806 | && symbol_ptr->u.syment.n_numaux > 0 | |
1807 | && raw_src + symesz + symbol_ptr->u.syment.n_numaux | |
1808 | * sizeof (union internal_auxent) >= raw_end) | |
1809 | { | |
1810 | bfd_release (abfd, internal); | |
1811 | return NULL; | |
1812 | } | |
1813 | ||
252b5132 RH |
1814 | for (i = 0; |
1815 | i < symbol_ptr->u.syment.n_numaux; | |
1816 | i++) | |
1817 | { | |
1818 | internal_ptr++; | |
7e760b06 NC |
1819 | /* PR 17512: Prevent buffer overrun. */ |
1820 | if (internal_ptr >= internal_end) | |
0a9d414a NC |
1821 | { |
1822 | bfd_release (abfd, internal); | |
1823 | return NULL; | |
1824 | } | |
7e760b06 | 1825 | |
252b5132 | 1826 | raw_src += symesz; |
0a9d414a | 1827 | |
c8e7bf0d | 1828 | bfd_coff_swap_aux_in (abfd, (void *) raw_src, |
252b5132 RH |
1829 | symbol_ptr->u.syment.n_type, |
1830 | symbol_ptr->u.syment.n_sclass, | |
dc810e39 | 1831 | (int) i, symbol_ptr->u.syment.n_numaux, |
252b5132 | 1832 | &(internal_ptr->u.auxent)); |
0a9d414a | 1833 | |
a5c71af8 | 1834 | internal_ptr->is_sym = FALSE; |
252b5132 RH |
1835 | coff_pointerize_aux (abfd, internal, symbol_ptr, i, |
1836 | internal_ptr); | |
1837 | } | |
1838 | } | |
1839 | ||
1840 | /* Free the raw symbols, but not the strings (if we have them). */ | |
b34976b6 | 1841 | obj_coff_keep_strings (abfd) = TRUE; |
252b5132 RH |
1842 | if (! _bfd_coff_free_symbols (abfd)) |
1843 | return NULL; | |
1844 | ||
1845 | for (internal_ptr = internal; internal_ptr < internal_end; | |
1846 | internal_ptr++) | |
1847 | { | |
a5c71af8 NC |
1848 | BFD_ASSERT (internal_ptr->is_sym); |
1849 | ||
252b5132 RH |
1850 | if (internal_ptr->u.syment.n_sclass == C_FILE |
1851 | && internal_ptr->u.syment.n_numaux > 0) | |
1852 | { | |
a5c71af8 NC |
1853 | combined_entry_type * aux = internal_ptr + 1; |
1854 | ||
c8e7bf0d NC |
1855 | /* Make a file symbol point to the name in the auxent, since |
1856 | the text ".file" is redundant. */ | |
a5c71af8 NC |
1857 | BFD_ASSERT (! aux->is_sym); |
1858 | ||
1859 | if (aux->u.auxent.x_file.x_n.x_zeroes == 0) | |
252b5132 | 1860 | { |
c8e7bf0d | 1861 | /* The filename is a long one, point into the string table. */ |
252b5132 RH |
1862 | if (string_table == NULL) |
1863 | { | |
1864 | string_table = _bfd_coff_read_string_table (abfd); | |
1865 | if (string_table == NULL) | |
1866 | return NULL; | |
1867 | } | |
a5c71af8 NC |
1868 | |
1869 | if ((bfd_size_type)(aux->u.auxent.x_file.x_n.x_offset) | |
5a3f568b NC |
1870 | >= obj_coff_strings_len (abfd)) |
1871 | internal_ptr->u.syment._n._n_n._n_offset = (bfd_hostptr_t) _("<corrupt>"); | |
1872 | else | |
1873 | internal_ptr->u.syment._n._n_n._n_offset = | |
a5c71af8 | 1874 | (bfd_hostptr_t) (string_table + (aux->u.auxent.x_file.x_n.x_offset)); |
252b5132 RH |
1875 | } |
1876 | else | |
1877 | { | |
7bb9db4d ILT |
1878 | /* Ordinary short filename, put into memory anyway. The |
1879 | Microsoft PE tools sometimes store a filename in | |
1880 | multiple AUX entries. */ | |
ec0ef80e DD |
1881 | if (internal_ptr->u.syment.n_numaux > 1 |
1882 | && coff_data (abfd)->pe) | |
c8e7bf0d | 1883 | internal_ptr->u.syment._n._n_n._n_offset = |
a5c71af8 NC |
1884 | (bfd_hostptr_t) |
1885 | copy_name (abfd, | |
1886 | aux->u.auxent.x_file.x_fname, | |
1887 | internal_ptr->u.syment.n_numaux * symesz); | |
ec0ef80e | 1888 | else |
c8e7bf0d | 1889 | internal_ptr->u.syment._n._n_n._n_offset = |
d2df793a | 1890 | ((bfd_hostptr_t) |
c8e7bf0d | 1891 | copy_name (abfd, |
a5c71af8 | 1892 | aux->u.auxent.x_file.x_fname, |
c8e7bf0d | 1893 | (size_t) bfd_coff_filnmlen (abfd))); |
252b5132 RH |
1894 | } |
1895 | } | |
1896 | else | |
1897 | { | |
1898 | if (internal_ptr->u.syment._n._n_n._n_zeroes != 0) | |
1899 | { | |
1900 | /* This is a "short" name. Make it long. */ | |
dc810e39 AM |
1901 | size_t i; |
1902 | char *newstring; | |
252b5132 | 1903 | |
c8e7bf0d | 1904 | /* Find the length of this string without walking into memory |
252b5132 RH |
1905 | that isn't ours. */ |
1906 | for (i = 0; i < 8; ++i) | |
dc810e39 AM |
1907 | if (internal_ptr->u.syment._n._n_name[i] == '\0') |
1908 | break; | |
252b5132 | 1909 | |
a50b1753 | 1910 | newstring = (char *) bfd_zalloc (abfd, (bfd_size_type) (i + 1)); |
dc810e39 | 1911 | if (newstring == NULL) |
c8e7bf0d | 1912 | return NULL; |
dc810e39 | 1913 | strncpy (newstring, internal_ptr->u.syment._n._n_name, i); |
d2df793a | 1914 | internal_ptr->u.syment._n._n_n._n_offset = (bfd_hostptr_t) newstring; |
252b5132 RH |
1915 | internal_ptr->u.syment._n._n_n._n_zeroes = 0; |
1916 | } | |
1917 | else if (internal_ptr->u.syment._n._n_n._n_offset == 0) | |
649aeae3 | 1918 | internal_ptr->u.syment._n._n_n._n_offset = (bfd_hostptr_t) ""; |
252b5132 RH |
1919 | else if (!bfd_coff_symname_in_debug (abfd, &internal_ptr->u.syment)) |
1920 | { | |
1921 | /* Long name already. Point symbol at the string in the | |
1922 | table. */ | |
1923 | if (string_table == NULL) | |
1924 | { | |
1925 | string_table = _bfd_coff_read_string_table (abfd); | |
1926 | if (string_table == NULL) | |
1927 | return NULL; | |
1928 | } | |
36e9d67b NC |
1929 | if (internal_ptr->u.syment._n._n_n._n_offset >= obj_coff_strings_len (abfd) |
1930 | || string_table + internal_ptr->u.syment._n._n_n._n_offset < string_table) | |
5a3f568b NC |
1931 | internal_ptr->u.syment._n._n_n._n_offset = (bfd_hostptr_t) _("<corrupt>"); |
1932 | else | |
1933 | internal_ptr->u.syment._n._n_n._n_offset = | |
1934 | ((bfd_hostptr_t) | |
1935 | (string_table | |
1936 | + internal_ptr->u.syment._n._n_n._n_offset)); | |
252b5132 RH |
1937 | } |
1938 | else | |
1939 | { | |
1940 | /* Long name in debug section. Very similar. */ | |
5a3f568b NC |
1941 | if (debug_sec_data == NULL) |
1942 | debug_sec_data = build_debug_section (abfd, & debug_sec); | |
1943 | if (debug_sec_data != NULL) | |
1944 | { | |
1945 | BFD_ASSERT (debug_sec != NULL); | |
1946 | /* PR binutils/17512: Catch out of range offsets into the debug data. */ | |
36e9d67b NC |
1947 | if (internal_ptr->u.syment._n._n_n._n_offset > debug_sec->size |
1948 | || debug_sec_data + internal_ptr->u.syment._n._n_n._n_offset < debug_sec_data) | |
5a3f568b NC |
1949 | internal_ptr->u.syment._n._n_n._n_offset = (bfd_hostptr_t) _("<corrupt>"); |
1950 | else | |
1951 | internal_ptr->u.syment._n._n_n._n_offset = (bfd_hostptr_t) | |
1952 | (debug_sec_data + internal_ptr->u.syment._n._n_n._n_offset); | |
1953 | } | |
1954 | else | |
1955 | internal_ptr->u.syment._n._n_n._n_offset = (bfd_hostptr_t) ""; | |
252b5132 RH |
1956 | } |
1957 | } | |
1958 | internal_ptr += internal_ptr->u.syment.n_numaux; | |
1959 | } | |
1960 | ||
1961 | obj_raw_syments (abfd) = internal; | |
1962 | BFD_ASSERT (obj_raw_syment_count (abfd) | |
1963 | == (unsigned int) (internal_ptr - internal)); | |
1964 | ||
c8e7bf0d NC |
1965 | return internal; |
1966 | } | |
252b5132 RH |
1967 | |
1968 | long | |
c8e7bf0d | 1969 | coff_get_reloc_upper_bound (bfd *abfd, sec_ptr asect) |
252b5132 RH |
1970 | { |
1971 | if (bfd_get_format (abfd) != bfd_object) | |
1972 | { | |
1973 | bfd_set_error (bfd_error_invalid_operation); | |
1974 | return -1; | |
1975 | } | |
1976 | return (asect->reloc_count + 1) * sizeof (arelent *); | |
1977 | } | |
1978 | ||
1979 | asymbol * | |
c8e7bf0d | 1980 | coff_make_empty_symbol (bfd *abfd) |
252b5132 | 1981 | { |
dc810e39 | 1982 | bfd_size_type amt = sizeof (coff_symbol_type); |
d3ce72d0 | 1983 | coff_symbol_type *new_symbol = (coff_symbol_type *) bfd_zalloc (abfd, amt); |
c8e7bf0d | 1984 | |
d3ce72d0 | 1985 | if (new_symbol == NULL) |
c8e7bf0d | 1986 | return NULL; |
d3ce72d0 | 1987 | new_symbol->symbol.section = 0; |
a5c71af8 | 1988 | new_symbol->native = NULL; |
d3ce72d0 NC |
1989 | new_symbol->lineno = NULL; |
1990 | new_symbol->done_lineno = FALSE; | |
1991 | new_symbol->symbol.the_bfd = abfd; | |
c8e7bf0d | 1992 | |
d3ce72d0 | 1993 | return & new_symbol->symbol; |
252b5132 RH |
1994 | } |
1995 | ||
1996 | /* Make a debugging symbol. */ | |
1997 | ||
1998 | asymbol * | |
c8e7bf0d NC |
1999 | coff_bfd_make_debug_symbol (bfd *abfd, |
2000 | void * ptr ATTRIBUTE_UNUSED, | |
2001 | unsigned long sz ATTRIBUTE_UNUSED) | |
252b5132 | 2002 | { |
dc810e39 | 2003 | bfd_size_type amt = sizeof (coff_symbol_type); |
d3ce72d0 | 2004 | coff_symbol_type *new_symbol = (coff_symbol_type *) bfd_alloc (abfd, amt); |
c8e7bf0d | 2005 | |
d3ce72d0 | 2006 | if (new_symbol == NULL) |
c8e7bf0d | 2007 | return NULL; |
252b5132 RH |
2008 | /* @@ The 10 is a guess at a plausible maximum number of aux entries |
2009 | (but shouldn't be a constant). */ | |
dc810e39 | 2010 | amt = sizeof (combined_entry_type) * 10; |
d3ce72d0 NC |
2011 | new_symbol->native = (combined_entry_type *) bfd_zalloc (abfd, amt); |
2012 | if (!new_symbol->native) | |
c8e7bf0d | 2013 | return NULL; |
a5c71af8 | 2014 | new_symbol->native->is_sym = TRUE; |
d3ce72d0 NC |
2015 | new_symbol->symbol.section = bfd_abs_section_ptr; |
2016 | new_symbol->symbol.flags = BSF_DEBUGGING; | |
2017 | new_symbol->lineno = NULL; | |
2018 | new_symbol->done_lineno = FALSE; | |
2019 | new_symbol->symbol.the_bfd = abfd; | |
68ffbac6 | 2020 | |
d3ce72d0 | 2021 | return & new_symbol->symbol; |
252b5132 RH |
2022 | } |
2023 | ||
252b5132 | 2024 | void |
c8e7bf0d | 2025 | coff_get_symbol_info (bfd *abfd, asymbol *symbol, symbol_info *ret) |
252b5132 RH |
2026 | { |
2027 | bfd_symbol_info (symbol, ret); | |
c8e7bf0d | 2028 | |
252b5132 | 2029 | if (coffsymbol (symbol)->native != NULL |
a5c71af8 NC |
2030 | && coffsymbol (symbol)->native->fix_value |
2031 | && coffsymbol (symbol)->native->is_sym) | |
c8e7bf0d | 2032 | ret->value = coffsymbol (symbol)->native->u.syment.n_value - |
d2df793a | 2033 | (bfd_hostptr_t) obj_raw_syments (abfd); |
252b5132 RH |
2034 | } |
2035 | ||
252b5132 RH |
2036 | /* Print out information about COFF symbol. */ |
2037 | ||
2038 | void | |
c8e7bf0d NC |
2039 | coff_print_symbol (bfd *abfd, |
2040 | void * filep, | |
2041 | asymbol *symbol, | |
2042 | bfd_print_symbol_type how) | |
252b5132 | 2043 | { |
c8e7bf0d | 2044 | FILE * file = (FILE *) filep; |
252b5132 RH |
2045 | |
2046 | switch (how) | |
2047 | { | |
2048 | case bfd_print_symbol_name: | |
2049 | fprintf (file, "%s", symbol->name); | |
2050 | break; | |
2051 | ||
2052 | case bfd_print_symbol_more: | |
2053 | fprintf (file, "coff %s %s", | |
2054 | coffsymbol (symbol)->native ? "n" : "g", | |
2055 | coffsymbol (symbol)->lineno ? "l" : " "); | |
2056 | break; | |
2057 | ||
2058 | case bfd_print_symbol_all: | |
2059 | if (coffsymbol (symbol)->native) | |
2060 | { | |
beb1bf64 | 2061 | bfd_vma val; |
252b5132 RH |
2062 | unsigned int aux; |
2063 | combined_entry_type *combined = coffsymbol (symbol)->native; | |
2064 | combined_entry_type *root = obj_raw_syments (abfd); | |
2065 | struct lineno_cache_entry *l = coffsymbol (symbol)->lineno; | |
2066 | ||
2067 | fprintf (file, "[%3ld]", (long) (combined - root)); | |
2068 | ||
f41e4712 NC |
2069 | /* PR 17512: file: 079-33786-0.001:0.1. */ |
2070 | if (combined < obj_raw_syments (abfd) | |
2071 | || combined >= obj_raw_syments (abfd) + obj_raw_syment_count (abfd)) | |
2072 | { | |
2073 | fprintf (file, _("<corrupt info> %s"), symbol->name); | |
2074 | break; | |
2075 | } | |
2076 | ||
a5c71af8 | 2077 | BFD_ASSERT (combined->is_sym); |
252b5132 | 2078 | if (! combined->fix_value) |
beb1bf64 | 2079 | val = (bfd_vma) combined->u.syment.n_value; |
252b5132 | 2080 | else |
d2df793a | 2081 | val = combined->u.syment.n_value - (bfd_hostptr_t) root; |
252b5132 | 2082 | |
7920ce38 | 2083 | fprintf (file, "(sec %2d)(fl 0x%02x)(ty %3x)(scl %3d) (nx %d) 0x", |
252b5132 RH |
2084 | combined->u.syment.n_scnum, |
2085 | combined->u.syment.n_flags, | |
2086 | combined->u.syment.n_type, | |
2087 | combined->u.syment.n_sclass, | |
745c12f8 | 2088 | combined->u.syment.n_numaux); |
ebf12fbe | 2089 | bfd_fprintf_vma (abfd, file, val); |
745c12f8 | 2090 | fprintf (file, " %s", symbol->name); |
252b5132 RH |
2091 | |
2092 | for (aux = 0; aux < combined->u.syment.n_numaux; aux++) | |
2093 | { | |
2094 | combined_entry_type *auxp = combined + aux + 1; | |
2095 | long tagndx; | |
2096 | ||
a5c71af8 | 2097 | BFD_ASSERT (! auxp->is_sym); |
252b5132 RH |
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) | |
c8e7bf0d | 2116 | /* Probably a section symbol ? */ |
252b5132 RH |
2117 | { |
2118 | fprintf (file, "AUX scnlen 0x%lx nreloc %d nlnno %d", | |
0af1713e | 2119 | (unsigned long) auxp->u.auxent.x_scn.x_scnlen, |
252b5132 RH |
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 | } | |
c8e7bf0d | 2131 | /* Otherwise fall through. */ |
312191a6 | 2132 | case C_EXT: |
8602d4fe | 2133 | case C_AIX_WEAKEXT: |
312191a6 ILT |
2134 | if (ISFCN (combined->u.syment.n_type)) |
2135 | { | |
cea4409c AM |
2136 | long next, llnos; |
2137 | ||
2138 | if (auxp->fix_end) | |
2139 | next = (auxp->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p | |
2140 | - root); | |
2141 | else | |
2142 | next = auxp->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l; | |
2143 | llnos = auxp->u.auxent.x_sym.x_fcnary.x_fcn.x_lnnoptr; | |
312191a6 | 2144 | fprintf (file, |
3d66c4f7 | 2145 | "AUX tagndx %ld ttlsiz 0x%lx lnnos %ld next %ld", |
0af1713e AM |
2146 | tagndx, |
2147 | (unsigned long) auxp->u.auxent.x_sym.x_misc.x_fsize, | |
cea4409c | 2148 | llnos, next); |
312191a6 ILT |
2149 | break; |
2150 | } | |
c8e7bf0d | 2151 | /* Otherwise fall through. */ |
252b5132 RH |
2152 | default: |
2153 | fprintf (file, "AUX lnno %d size 0x%x tagndx %ld", | |
2154 | auxp->u.auxent.x_sym.x_misc.x_lnsz.x_lnno, | |
2155 | auxp->u.auxent.x_sym.x_misc.x_lnsz.x_size, | |
2156 | tagndx); | |
2157 | if (auxp->fix_end) | |
2158 | fprintf (file, " endndx %ld", | |
2159 | ((long) | |
2160 | (auxp->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p | |
2161 | - root))); | |
2162 | break; | |
2163 | } | |
2164 | } | |
2165 | ||
2166 | if (l) | |
2167 | { | |
2168 | fprintf (file, "\n%s :", l->u.sym->name); | |
2169 | l++; | |
2170 | while (l->line_number) | |
2171 | { | |
f41e4712 NC |
2172 | if (l->line_number > 0) |
2173 | { | |
2174 | fprintf (file, "\n%4d : ", l->line_number); | |
2175 | bfd_fprintf_vma (abfd, file, l->u.offset + symbol->section->vma); | |
2176 | } | |
252b5132 RH |
2177 | l++; |
2178 | } | |
2179 | } | |
2180 | } | |
2181 | else | |
2182 | { | |
c8e7bf0d | 2183 | bfd_print_symbol_vandf (abfd, (void *) file, symbol); |
252b5132 RH |
2184 | fprintf (file, " %-5s %s %s %s", |
2185 | symbol->section->name, | |
2186 | coffsymbol (symbol)->native ? "n" : "g", | |
2187 | coffsymbol (symbol)->lineno ? "l" : " ", | |
2188 | symbol->name); | |
2189 | } | |
2190 | } | |
2191 | } | |
2192 | ||
2193 | /* Return whether a symbol name implies a local symbol. In COFF, | |
2194 | local symbols generally start with ``.L''. Most targets use this | |
2195 | function for the is_local_label_name entry point, but some may | |
2196 | override it. */ | |
2197 | ||
b34976b6 | 2198 | bfd_boolean |
c8e7bf0d NC |
2199 | _bfd_coff_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, |
2200 | const char *name) | |
252b5132 | 2201 | { |
b34976b6 | 2202 | return name[0] == '.' && name[1] == 'L'; |
252b5132 RH |
2203 | } |
2204 | ||
9a968f43 NC |
2205 | /* Provided a BFD, a section and an offset (in bytes, not octets) into the |
2206 | section, calculate and return the name of the source file and the line | |
2207 | nearest to the wanted location. */ | |
435b1e90 | 2208 | |
b34976b6 | 2209 | bfd_boolean |
fc28f9aa | 2210 | coff_find_nearest_line_with_names (bfd *abfd, |
fc28f9aa | 2211 | asymbol **symbols, |
fb167eb2 | 2212 | asection *section, |
fc28f9aa TG |
2213 | bfd_vma offset, |
2214 | const char **filename_ptr, | |
2215 | const char **functionname_ptr, | |
fb167eb2 AM |
2216 | unsigned int *line_ptr, |
2217 | const struct dwarf_debug_section *debug_sections) | |
252b5132 | 2218 | { |
b34976b6 | 2219 | bfd_boolean found; |
252b5132 RH |
2220 | unsigned int i; |
2221 | unsigned int line_base; | |
2222 | coff_data_type *cof = coff_data (abfd); | |
c8e7bf0d | 2223 | /* Run through the raw syments if available. */ |
252b5132 RH |
2224 | combined_entry_type *p; |
2225 | combined_entry_type *pend; | |
2226 | alent *l; | |
2227 | struct coff_section_tdata *sec_data; | |
dc810e39 | 2228 | bfd_size_type amt; |
252b5132 RH |
2229 | |
2230 | /* Before looking through the symbol table, try to use a .stab | |
2231 | section to find the information. */ | |
2232 | if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, | |
2233 | &found, filename_ptr, | |
2234 | functionname_ptr, line_ptr, | |
51db3708 | 2235 | &coff_data(abfd)->line_info)) |
b34976b6 | 2236 | return FALSE; |
51db3708 | 2237 | |
4ca29a6a | 2238 | if (found) |
b34976b6 | 2239 | return TRUE; |
4ca29a6a | 2240 | |
51db3708 | 2241 | /* Also try examining DWARF2 debugging information. */ |
fb167eb2 | 2242 | if (_bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset, |
51db3708 | 2243 | filename_ptr, functionname_ptr, |
fb167eb2 | 2244 | line_ptr, NULL, debug_sections, 0, |
51db3708 | 2245 | &coff_data(abfd)->dwarf2_find_line_info)) |
b34976b6 | 2246 | return TRUE; |
51db3708 | 2247 | |
425bd9e1 NC |
2248 | /* If the DWARF lookup failed, but there is DWARF information available |
2249 | then the problem might be that the file has been rebased. This tool | |
2250 | changes the VMAs of all the sections, but it does not update the DWARF | |
2251 | information. So try again, using a bias against the address sought. */ | |
2252 | if (coff_data (abfd)->dwarf2_find_line_info != NULL) | |
2253 | { | |
2254 | bfd_signed_vma bias; | |
2255 | ||
2256 | bias = _bfd_dwarf2_find_symbol_bias (symbols, | |
2257 | & coff_data (abfd)->dwarf2_find_line_info); | |
2258 | ||
2259 | if (bias | |
2260 | && _bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, | |
2261 | offset + bias, | |
2262 | filename_ptr, functionname_ptr, | |
2263 | line_ptr, NULL, debug_sections, 0, | |
2264 | &coff_data(abfd)->dwarf2_find_line_info)) | |
2265 | return TRUE; | |
2266 | } | |
2267 | ||
252b5132 RH |
2268 | *filename_ptr = 0; |
2269 | *functionname_ptr = 0; | |
2270 | *line_ptr = 0; | |
2271 | ||
c8e7bf0d | 2272 | /* Don't try and find line numbers in a non coff file. */ |
9bd09e22 | 2273 | if (!bfd_family_coff (abfd)) |
b34976b6 | 2274 | return FALSE; |
252b5132 RH |
2275 | |
2276 | if (cof == NULL) | |
b34976b6 | 2277 | return FALSE; |
252b5132 RH |
2278 | |
2279 | /* Find the first C_FILE symbol. */ | |
2280 | p = cof->raw_syments; | |
2281 | if (!p) | |
b34976b6 | 2282 | return FALSE; |
252b5132 RH |
2283 | |
2284 | pend = p + cof->raw_syment_count; | |
2285 | while (p < pend) | |
2286 | { | |
a5c71af8 | 2287 | BFD_ASSERT (p->is_sym); |
252b5132 RH |
2288 | if (p->u.syment.n_sclass == C_FILE) |
2289 | break; | |
2290 | p += 1 + p->u.syment.n_numaux; | |
2291 | } | |
2292 | ||
2293 | if (p < pend) | |
2294 | { | |
2295 | bfd_vma sec_vma; | |
2296 | bfd_vma maxdiff; | |
2297 | ||
2298 | /* Look through the C_FILE symbols to find the best one. */ | |
2299 | sec_vma = bfd_get_section_vma (abfd, section); | |
2300 | *filename_ptr = (char *) p->u.syment._n._n_n._n_offset; | |
2301 | maxdiff = (bfd_vma) 0 - (bfd_vma) 1; | |
2302 | while (1) | |
2303 | { | |
4d9e2b27 | 2304 | bfd_vma file_addr; |
252b5132 RH |
2305 | combined_entry_type *p2; |
2306 | ||
2307 | for (p2 = p + 1 + p->u.syment.n_numaux; | |
2308 | p2 < pend; | |
2309 | p2 += 1 + p2->u.syment.n_numaux) | |
2310 | { | |
a5c71af8 | 2311 | BFD_ASSERT (p2->is_sym); |
252b5132 RH |
2312 | if (p2->u.syment.n_scnum > 0 |
2313 | && (section | |
2314 | == coff_section_from_bfd_index (abfd, | |
2315 | p2->u.syment.n_scnum))) | |
2316 | break; | |
2317 | if (p2->u.syment.n_sclass == C_FILE) | |
2318 | { | |
2319 | p2 = pend; | |
2320 | break; | |
2321 | } | |
2322 | } | |
a5c71af8 NC |
2323 | if (p2 >= pend) |
2324 | break; | |
252b5132 | 2325 | |
4d9e2b27 NC |
2326 | file_addr = (bfd_vma) p2->u.syment.n_value; |
2327 | /* PR 11512: Include the section address of the function name symbol. */ | |
2328 | if (p2->u.syment.n_scnum > 0) | |
2329 | file_addr += coff_section_from_bfd_index (abfd, | |
2330 | p2->u.syment.n_scnum)->vma; | |
798c1fb8 ILT |
2331 | /* We use <= MAXDIFF here so that if we get a zero length |
2332 | file, we actually use the next file entry. */ | |
252b5132 | 2333 | if (p2 < pend |
4d9e2b27 NC |
2334 | && offset + sec_vma >= file_addr |
2335 | && offset + sec_vma - file_addr <= maxdiff) | |
252b5132 RH |
2336 | { |
2337 | *filename_ptr = (char *) p->u.syment._n._n_n._n_offset; | |
2338 | maxdiff = offset + sec_vma - p2->u.syment.n_value; | |
2339 | } | |
2340 | ||
2341 | /* Avoid endless loops on erroneous files by ensuring that | |
2342 | we always move forward in the file. */ | |
cea4409c | 2343 | if (p >= cof->raw_syments + p->u.syment.n_value) |
252b5132 RH |
2344 | break; |
2345 | ||
2346 | p = cof->raw_syments + p->u.syment.n_value; | |
2347 | if (p > pend || p->u.syment.n_sclass != C_FILE) | |
2348 | break; | |
2349 | } | |
2350 | } | |
2351 | ||
c8e7bf0d | 2352 | /* Now wander though the raw linenumbers of the section. */ |
70df0c05 | 2353 | /* If we have been called on this section before, and the offset we |
252b5132 RH |
2354 | want is further down then we can prime the lookup loop. */ |
2355 | sec_data = coff_section_data (abfd, section); | |
2356 | if (sec_data != NULL | |
2357 | && sec_data->i > 0 | |
2358 | && offset >= sec_data->offset) | |
2359 | { | |
2360 | i = sec_data->i; | |
2361 | *functionname_ptr = sec_data->function; | |
2362 | line_base = sec_data->line_base; | |
2363 | } | |
2364 | else | |
2365 | { | |
2366 | i = 0; | |
2367 | line_base = 0; | |
2368 | } | |
2369 | ||
2370 | if (section->lineno != NULL) | |
2371 | { | |
798c1fb8 ILT |
2372 | bfd_vma last_value = 0; |
2373 | ||
252b5132 RH |
2374 | l = §ion->lineno[i]; |
2375 | ||
2376 | for (; i < section->lineno_count; i++) | |
2377 | { | |
2378 | if (l->line_number == 0) | |
2379 | { | |
c8e7bf0d | 2380 | /* Get the symbol this line number points at. */ |
252b5132 RH |
2381 | coff_symbol_type *coff = (coff_symbol_type *) (l->u.sym); |
2382 | if (coff->symbol.value > offset) | |
2383 | break; | |
2384 | *functionname_ptr = coff->symbol.name; | |
798c1fb8 | 2385 | last_value = coff->symbol.value; |
252b5132 RH |
2386 | if (coff->native) |
2387 | { | |
2388 | combined_entry_type *s = coff->native; | |
a5c71af8 NC |
2389 | |
2390 | BFD_ASSERT (s->is_sym); | |
252b5132 RH |
2391 | s = s + 1 + s->u.syment.n_numaux; |
2392 | ||
2393 | /* In XCOFF a debugging symbol can follow the | |
2394 | function symbol. */ | |
2395 | if (s->u.syment.n_scnum == N_DEBUG) | |
2396 | s = s + 1 + s->u.syment.n_numaux; | |
2397 | ||
2398 | /* S should now point to the .bf of the function. */ | |
2399 | if (s->u.syment.n_numaux) | |
2400 | { | |
2401 | /* The linenumber is stored in the auxent. */ | |
2402 | union internal_auxent *a = &((s + 1)->u.auxent); | |
a5c71af8 | 2403 | |
252b5132 RH |
2404 | line_base = a->x_sym.x_misc.x_lnsz.x_lnno; |
2405 | *line_ptr = line_base; | |
2406 | } | |
2407 | } | |
2408 | } | |
2409 | else | |
2410 | { | |
2411 | if (l->u.offset > offset) | |
2412 | break; | |
2413 | *line_ptr = l->line_number + line_base - 1; | |
2414 | } | |
2415 | l++; | |
2416 | } | |
798c1fb8 ILT |
2417 | |
2418 | /* If we fell off the end of the loop, then assume that this | |
2419 | symbol has no line number info. Otherwise, symbols with no | |
2420 | line number info get reported with the line number of the | |
2421 | last line of the last symbol which does have line number | |
2422 | info. We use 0x100 as a slop to account for cases where the | |
2423 | last line has executable code. */ | |
2424 | if (i >= section->lineno_count | |
2425 | && last_value != 0 | |
2426 | && offset - last_value > 0x100) | |
2427 | { | |
2428 | *functionname_ptr = NULL; | |
2429 | *line_ptr = 0; | |
2430 | } | |
252b5132 RH |
2431 | } |
2432 | ||
2433 | /* Cache the results for the next call. */ | |
2434 | if (sec_data == NULL && section->owner == abfd) | |
2435 | { | |
dc810e39 | 2436 | amt = sizeof (struct coff_section_tdata); |
c8e7bf0d | 2437 | section->used_by_bfd = bfd_zalloc (abfd, amt); |
252b5132 RH |
2438 | sec_data = (struct coff_section_tdata *) section->used_by_bfd; |
2439 | } | |
2440 | if (sec_data != NULL) | |
2441 | { | |
2442 | sec_data->offset = offset; | |
70df0c05 | 2443 | sec_data->i = i - 1; |
252b5132 RH |
2444 | sec_data->function = *functionname_ptr; |
2445 | sec_data->line_base = line_base; | |
2446 | } | |
2447 | ||
b34976b6 | 2448 | return TRUE; |
252b5132 RH |
2449 | } |
2450 | ||
fc28f9aa TG |
2451 | bfd_boolean |
2452 | coff_find_nearest_line (bfd *abfd, | |
fc28f9aa | 2453 | asymbol **symbols, |
fb167eb2 | 2454 | asection *section, |
fc28f9aa TG |
2455 | bfd_vma offset, |
2456 | const char **filename_ptr, | |
2457 | const char **functionname_ptr, | |
fb167eb2 AM |
2458 | unsigned int *line_ptr, |
2459 | unsigned int *discriminator_ptr) | |
fc28f9aa | 2460 | { |
fb167eb2 AM |
2461 | if (discriminator_ptr) |
2462 | *discriminator_ptr = 0; | |
2463 | return coff_find_nearest_line_with_names (abfd, symbols, section, offset, | |
fc28f9aa | 2464 | filename_ptr, functionname_ptr, |
fb167eb2 | 2465 | line_ptr, dwarf_debug_sections); |
fc28f9aa TG |
2466 | } |
2467 | ||
4ab527b0 FF |
2468 | bfd_boolean |
2469 | coff_find_inliner_info (bfd *abfd, | |
2470 | const char **filename_ptr, | |
2471 | const char **functionname_ptr, | |
2472 | unsigned int *line_ptr) | |
2473 | { | |
2474 | bfd_boolean found; | |
2475 | ||
2476 | found = _bfd_dwarf2_find_inliner_info (abfd, filename_ptr, | |
2477 | functionname_ptr, line_ptr, | |
2478 | &coff_data(abfd)->dwarf2_find_line_info); | |
2479 | return (found); | |
2480 | } | |
2481 | ||
252b5132 | 2482 | int |
a6b96beb | 2483 | coff_sizeof_headers (bfd *abfd, struct bfd_link_info *info) |
252b5132 RH |
2484 | { |
2485 | size_t size; | |
2486 | ||
a6b96beb | 2487 | if (!info->relocatable) |
c8e7bf0d | 2488 | size = bfd_coff_filhsz (abfd) + bfd_coff_aoutsz (abfd); |
252b5132 | 2489 | else |
c8e7bf0d | 2490 | size = bfd_coff_filhsz (abfd); |
252b5132 RH |
2491 | |
2492 | size += abfd->section_count * bfd_coff_scnhsz (abfd); | |
2493 | return size; | |
2494 | } | |
2495 | ||
2496 | /* Change the class of a coff symbol held by BFD. */ | |
c8e7bf0d | 2497 | |
b34976b6 | 2498 | bfd_boolean |
c8e7bf0d NC |
2499 | bfd_coff_set_symbol_class (bfd * abfd, |
2500 | asymbol * symbol, | |
96d56e9f | 2501 | unsigned int symbol_class) |
252b5132 RH |
2502 | { |
2503 | coff_symbol_type * csym; | |
2504 | ||
f4943d82 | 2505 | csym = coff_symbol_from (symbol); |
252b5132 RH |
2506 | if (csym == NULL) |
2507 | { | |
2508 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 2509 | return FALSE; |
252b5132 RH |
2510 | } |
2511 | else if (csym->native == NULL) | |
2512 | { | |
2513 | /* This is an alien symbol which no native coff backend data. | |
2514 | We cheat here by creating a fake native entry for it and | |
2515 | then filling in the class. This code is based on that in | |
2516 | coff_write_alien_symbol(). */ | |
244148ad | 2517 | |
252b5132 | 2518 | combined_entry_type * native; |
dc810e39 | 2519 | bfd_size_type amt = sizeof (* native); |
252b5132 | 2520 | |
a50b1753 | 2521 | native = (combined_entry_type *) bfd_zalloc (abfd, amt); |
252b5132 | 2522 | if (native == NULL) |
b34976b6 | 2523 | return FALSE; |
252b5132 | 2524 | |
a5c71af8 | 2525 | native->is_sym = TRUE; |
252b5132 | 2526 | native->u.syment.n_type = T_NULL; |
96d56e9f | 2527 | native->u.syment.n_sclass = symbol_class; |
244148ad | 2528 | |
252b5132 RH |
2529 | if (bfd_is_und_section (symbol->section)) |
2530 | { | |
2531 | native->u.syment.n_scnum = N_UNDEF; | |
2532 | native->u.syment.n_value = symbol->value; | |
2533 | } | |
2534 | else if (bfd_is_com_section (symbol->section)) | |
2535 | { | |
2536 | native->u.syment.n_scnum = N_UNDEF; | |
2537 | native->u.syment.n_value = symbol->value; | |
2538 | } | |
2539 | else | |
2540 | { | |
2541 | native->u.syment.n_scnum = | |
2542 | symbol->section->output_section->target_index; | |
2543 | native->u.syment.n_value = (symbol->value | |
2544 | + symbol->section->output_offset); | |
2545 | if (! obj_pe (abfd)) | |
2546 | native->u.syment.n_value += symbol->section->output_section->vma; | |
244148ad | 2547 | |
08da05b0 | 2548 | /* Copy the any flags from the file header into the symbol. |
252b5132 RH |
2549 | FIXME: Why? */ |
2550 | native->u.syment.n_flags = bfd_asymbol_bfd (& csym->symbol)->flags; | |
2551 | } | |
244148ad | 2552 | |
252b5132 RH |
2553 | csym->native = native; |
2554 | } | |
2555 | else | |
96d56e9f | 2556 | csym->native->u.syment.n_sclass = symbol_class; |
244148ad | 2557 | |
b34976b6 | 2558 | return TRUE; |
252b5132 | 2559 | } |
082b7297 | 2560 | |
c77ec726 AM |
2561 | bfd_boolean |
2562 | _bfd_coff_section_already_linked (bfd *abfd, | |
2563 | asection *sec, | |
2564 | struct bfd_link_info *info) | |
2565 | { | |
2566 | flagword flags; | |
2567 | const char *name, *key; | |
2568 | struct bfd_section_already_linked *l; | |
2569 | struct bfd_section_already_linked_hash_entry *already_linked_list; | |
2570 | struct coff_comdat_info *s_comdat; | |
2571 | ||
2572 | flags = sec->flags; | |
2573 | if ((flags & SEC_LINK_ONCE) == 0) | |
2574 | return FALSE; | |
2575 | ||
2576 | /* The COFF backend linker doesn't support group sections. */ | |
2577 | if ((flags & SEC_GROUP) != 0) | |
2578 | return FALSE; | |
2579 | ||
2580 | name = bfd_get_section_name (abfd, sec); | |
2581 | s_comdat = bfd_coff_get_comdat_section (abfd, sec); | |
2582 | ||
2583 | if (s_comdat != NULL) | |
2584 | key = s_comdat->name; | |
2585 | else | |
2586 | { | |
2587 | if (CONST_STRNEQ (name, ".gnu.linkonce.") | |
2588 | && (key = strchr (name + sizeof (".gnu.linkonce.") - 1, '.')) != NULL) | |
2589 | key++; | |
2590 | else | |
2591 | /* FIXME: gcc as of 2011-09 emits sections like .text$<key>, | |
2592 | .xdata$<key> and .pdata$<key> only the first of which has a | |
2593 | comdat key. Should these all match the LTO IR key? */ | |
2594 | key = name; | |
2595 | } | |
2596 | ||
2597 | already_linked_list = bfd_section_already_linked_table_lookup (key); | |
2598 | ||
2599 | for (l = already_linked_list->entry; l != NULL; l = l->next) | |
2600 | { | |
2601 | struct coff_comdat_info *l_comdat; | |
2602 | ||
2603 | l_comdat = bfd_coff_get_comdat_section (l->sec->owner, l->sec); | |
2604 | ||
2605 | /* The section names must match, and both sections must be | |
2606 | comdat and have the same comdat name, or both sections must | |
2607 | be non-comdat. LTO IR plugin sections are an exception. They | |
2608 | are always named .gnu.linkonce.t.<key> (<key> is some string) | |
2609 | and match any comdat section with comdat name of <key>, and | |
2610 | any linkonce section with the same suffix, ie. | |
2611 | .gnu.linkonce.*.<key>. */ | |
2612 | if (((s_comdat != NULL) == (l_comdat != NULL) | |
2613 | && strcmp (name, l->sec->name) == 0) | |
2614 | || (l->sec->owner->flags & BFD_PLUGIN) != 0) | |
2615 | { | |
2616 | /* The section has already been linked. See if we should | |
2617 | issue a warning. */ | |
2618 | return _bfd_handle_already_linked (sec, l, info); | |
2619 | } | |
2620 | } | |
2621 | ||
2622 | /* This is the first section with this name. Record it. */ | |
2623 | if (!bfd_section_already_linked_table_insert (already_linked_list, sec)) | |
2624 | info->callbacks->einfo (_("%F%P: already_linked_table: %E\n")); | |
2625 | return FALSE; | |
2626 | } |