Commit | Line | Data |
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252b5132 | 1 | /* Support for the generic parts of COFF, for BFD. |
7898deda | 2 | Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
aa820537 | 3 | 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 |
252b5132 RH |
4 | Free Software Foundation, Inc. |
5 | Written by Cygnus Support. | |
6 | ||
c8e7bf0d | 7 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 8 | |
c8e7bf0d NC |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c8e7bf0d | 12 | (at your option) any later version. |
252b5132 | 13 | |
c8e7bf0d NC |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
252b5132 | 18 | |
c8e7bf0d NC |
19 | You should have received a copy of the GNU General Public License |
20 | along with this program; if not, write to the Free Software | |
cd123cb7 NC |
21 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
22 | MA 02110-1301, USA. */ | |
252b5132 RH |
23 | |
24 | /* Most of this hacked by Steve Chamberlain, sac@cygnus.com. | |
25 | Split out of coffcode.h by Ian Taylor, ian@cygnus.com. */ | |
26 | ||
27 | /* This file contains COFF code that is not dependent on any | |
28 | particular COFF target. There is only one version of this file in | |
29 | libbfd.a, so no target specific code may be put in here. Or, to | |
30 | put it another way, | |
31 | ||
32 | ********** DO NOT PUT TARGET SPECIFIC CODE IN THIS FILE ********** | |
33 | ||
34 | If you need to add some target specific behaviour, add a new hook | |
35 | function to bfd_coff_backend_data. | |
36 | ||
37 | Some of these functions are also called by the ECOFF routines. | |
38 | Those functions may not use any COFF specific information, such as | |
39 | coff_data (abfd). */ | |
40 | ||
252b5132 | 41 | #include "sysdep.h" |
3db64b00 | 42 | #include "bfd.h" |
252b5132 RH |
43 | #include "libbfd.h" |
44 | #include "coff/internal.h" | |
45 | #include "libcoff.h" | |
46 | ||
252b5132 RH |
47 | /* Take a section header read from a coff file (in HOST byte order), |
48 | and make a BFD "section" out of it. This is used by ECOFF. */ | |
c8e7bf0d | 49 | |
b34976b6 | 50 | static bfd_boolean |
c8e7bf0d NC |
51 | make_a_section_from_file (bfd *abfd, |
52 | struct internal_scnhdr *hdr, | |
53 | unsigned int target_index) | |
252b5132 RH |
54 | { |
55 | asection *return_section; | |
56 | char *name; | |
b34976b6 | 57 | bfd_boolean result = TRUE; |
7c8ca0e4 | 58 | flagword flags; |
252b5132 RH |
59 | |
60 | name = NULL; | |
61 | ||
88183869 DK |
62 | /* Handle long section names as in PE. On reading, we want to |
63 | accept long names if the format permits them at all, regardless | |
64 | of the current state of the flag that dictates if we would generate | |
65 | them in outputs; this construct checks if that is the case by | |
66 | attempting to set the flag, without changing its state; the call | |
67 | will fail for formats that do not support long names at all. */ | |
68 | if (bfd_coff_set_long_section_names (abfd, bfd_coff_long_section_names (abfd)) | |
252b5132 RH |
69 | && hdr->s_name[0] == '/') |
70 | { | |
71 | char buf[SCNNMLEN]; | |
72 | long strindex; | |
73 | char *p; | |
74 | const char *strings; | |
75 | ||
0408dee6 DK |
76 | /* Flag that this BFD uses long names, even though the format might |
77 | expect them to be off by default. This won't directly affect the | |
78 | format of any output BFD created from this one, but the information | |
79 | can be used to decide what to do. */ | |
80 | bfd_coff_set_long_section_names (abfd, TRUE); | |
252b5132 RH |
81 | memcpy (buf, hdr->s_name + 1, SCNNMLEN - 1); |
82 | buf[SCNNMLEN - 1] = '\0'; | |
83 | strindex = strtol (buf, &p, 10); | |
84 | if (*p == '\0' && strindex >= 0) | |
85 | { | |
86 | strings = _bfd_coff_read_string_table (abfd); | |
87 | if (strings == NULL) | |
b34976b6 | 88 | return FALSE; |
252b5132 RH |
89 | /* FIXME: For extra safety, we should make sure that |
90 | strindex does not run us past the end, but right now we | |
91 | don't know the length of the string table. */ | |
92 | strings += strindex; | |
a50b1753 | 93 | name = (char *) bfd_alloc (abfd, |
a29a8af8 | 94 | (bfd_size_type) strlen (strings) + 1 + 1); |
252b5132 | 95 | if (name == NULL) |
b34976b6 | 96 | return FALSE; |
252b5132 RH |
97 | strcpy (name, strings); |
98 | } | |
99 | } | |
100 | ||
101 | if (name == NULL) | |
102 | { | |
103 | /* Assorted wastage to null-terminate the name, thanks AT&T! */ | |
a50b1753 | 104 | name = (char *) bfd_alloc (abfd, |
a29a8af8 | 105 | (bfd_size_type) sizeof (hdr->s_name) + 1 + 1); |
252b5132 | 106 | if (name == NULL) |
b34976b6 | 107 | return FALSE; |
252b5132 RH |
108 | strncpy (name, (char *) &hdr->s_name[0], sizeof (hdr->s_name)); |
109 | name[sizeof (hdr->s_name)] = 0; | |
110 | } | |
111 | ||
112 | return_section = bfd_make_section_anyway (abfd, name); | |
113 | if (return_section == NULL) | |
b34976b6 | 114 | return FALSE; |
252b5132 RH |
115 | |
116 | return_section->vma = hdr->s_vaddr; | |
117 | return_section->lma = hdr->s_paddr; | |
eea6121a | 118 | return_section->size = hdr->s_size; |
252b5132 RH |
119 | return_section->filepos = hdr->s_scnptr; |
120 | return_section->rel_filepos = hdr->s_relptr; | |
121 | return_section->reloc_count = hdr->s_nreloc; | |
122 | ||
123 | bfd_coff_set_alignment_hook (abfd, return_section, hdr); | |
124 | ||
125 | return_section->line_filepos = hdr->s_lnnoptr; | |
126 | ||
127 | return_section->lineno_count = hdr->s_nlnno; | |
128 | return_section->userdata = NULL; | |
c8e7bf0d | 129 | return_section->next = NULL; |
252b5132 | 130 | return_section->target_index = target_index; |
7c8ca0e4 NC |
131 | |
132 | if (! bfd_coff_styp_to_sec_flags_hook (abfd, hdr, name, return_section, | |
133 | & flags)) | |
b34976b6 | 134 | result = FALSE; |
dc810e39 | 135 | |
7c8ca0e4 | 136 | return_section->flags = flags; |
252b5132 RH |
137 | |
138 | /* At least on i386-coff, the line number count for a shared library | |
139 | section must be ignored. */ | |
140 | if ((return_section->flags & SEC_COFF_SHARED_LIBRARY) != 0) | |
141 | return_section->lineno_count = 0; | |
142 | ||
143 | if (hdr->s_nreloc != 0) | |
144 | return_section->flags |= SEC_RELOC; | |
c8e7bf0d | 145 | /* FIXME: should this check 'hdr->s_size > 0'. */ |
252b5132 RH |
146 | if (hdr->s_scnptr != 0) |
147 | return_section->flags |= SEC_HAS_CONTENTS; | |
7c8ca0e4 | 148 | |
a29a8af8 KT |
149 | /* Compress/decompress DWARF debug sections with names: .debug_* and |
150 | .zdebug_*, after the section flags is set. */ | |
151 | if ((flags & SEC_DEBUGGING) | |
152 | && ((name[1] == 'd' && name[6] == '_') | |
153 | || (name[1] == 'z' && name[7] == '_'))) | |
154 | { | |
155 | enum { nothing, compress, decompress } action = nothing; | |
156 | char *new_name = NULL; | |
157 | ||
158 | if (bfd_is_section_compressed (abfd, return_section)) | |
159 | { | |
160 | /* Compressed section. Check if we should decompress. */ | |
161 | if ((abfd->flags & BFD_DECOMPRESS)) | |
162 | action = decompress; | |
163 | } | |
164 | else if (!bfd_is_section_compressed (abfd, return_section)) | |
165 | { | |
166 | /* Normal section. Check if we should compress. */ | |
167 | if ((abfd->flags & BFD_COMPRESS) && return_section->size != 0) | |
168 | action = compress; | |
169 | } | |
170 | ||
171 | switch (action) | |
172 | { | |
173 | case nothing: | |
174 | break; | |
175 | case compress: | |
176 | if (!bfd_init_section_compress_status (abfd, return_section)) | |
177 | { | |
178 | (*_bfd_error_handler) | |
179 | (_("%B: unable to initialize compress status for section %s"), | |
180 | abfd, name); | |
181 | return FALSE; | |
182 | } | |
183 | if (name[1] != 'z') | |
184 | { | |
185 | unsigned int len = strlen (name); | |
186 | ||
187 | new_name = bfd_alloc (abfd, len + 2); | |
188 | if (new_name == NULL) | |
189 | return FALSE; | |
190 | new_name[0] = '.'; | |
191 | new_name[1] = 'z'; | |
192 | memcpy (new_name + 2, name + 1, len); | |
193 | } | |
194 | break; | |
195 | case decompress: | |
196 | if (!bfd_init_section_decompress_status (abfd, return_section)) | |
197 | { | |
198 | (*_bfd_error_handler) | |
199 | (_("%B: unable to initialize decompress status for section %s"), | |
200 | abfd, name); | |
201 | return FALSE; | |
202 | } | |
203 | if (name[1] == 'z') | |
204 | { | |
205 | unsigned int len = strlen (name); | |
206 | ||
207 | new_name = bfd_alloc (abfd, len); | |
208 | if (new_name == NULL) | |
209 | return FALSE; | |
210 | new_name[0] = '.'; | |
211 | memcpy (new_name + 1, name + 2, len - 1); | |
212 | } | |
213 | break; | |
214 | } | |
215 | if (new_name != NULL) | |
216 | bfd_rename_section (abfd, return_section, new_name); | |
217 | } | |
218 | ||
7c8ca0e4 | 219 | return result; |
252b5132 RH |
220 | } |
221 | ||
222 | /* Read in a COFF object and make it into a BFD. This is used by | |
223 | ECOFF as well. */ | |
ce63b7b3 KT |
224 | const bfd_target * |
225 | coff_real_object_p (bfd *, | |
226 | unsigned, | |
227 | struct internal_filehdr *, | |
228 | struct internal_aouthdr *); | |
229 | const bfd_target * | |
c8e7bf0d NC |
230 | coff_real_object_p (bfd *abfd, |
231 | unsigned nscns, | |
232 | struct internal_filehdr *internal_f, | |
233 | struct internal_aouthdr *internal_a) | |
252b5132 RH |
234 | { |
235 | flagword oflags = abfd->flags; | |
236 | bfd_vma ostart = bfd_get_start_address (abfd); | |
c8e7bf0d NC |
237 | void * tdata; |
238 | void * tdata_save; | |
239 | bfd_size_type readsize; /* Length of file_info. */ | |
252b5132 RH |
240 | unsigned int scnhsz; |
241 | char *external_sections; | |
242 | ||
243 | if (!(internal_f->f_flags & F_RELFLG)) | |
244 | abfd->flags |= HAS_RELOC; | |
245 | if ((internal_f->f_flags & F_EXEC)) | |
246 | abfd->flags |= EXEC_P; | |
247 | if (!(internal_f->f_flags & F_LNNO)) | |
248 | abfd->flags |= HAS_LINENO; | |
249 | if (!(internal_f->f_flags & F_LSYMS)) | |
250 | abfd->flags |= HAS_LOCALS; | |
251 | ||
252 | /* FIXME: How can we set D_PAGED correctly? */ | |
253 | if ((internal_f->f_flags & F_EXEC) != 0) | |
254 | abfd->flags |= D_PAGED; | |
255 | ||
256 | bfd_get_symcount (abfd) = internal_f->f_nsyms; | |
257 | if (internal_f->f_nsyms) | |
258 | abfd->flags |= HAS_SYMS; | |
259 | ||
260 | if (internal_a != (struct internal_aouthdr *) NULL) | |
261 | bfd_get_start_address (abfd) = internal_a->entry; | |
262 | else | |
263 | bfd_get_start_address (abfd) = 0; | |
264 | ||
265 | /* Set up the tdata area. ECOFF uses its own routine, and overrides | |
266 | abfd->flags. */ | |
487e54f2 | 267 | tdata_save = abfd->tdata.any; |
c8e7bf0d | 268 | tdata = bfd_coff_mkobject_hook (abfd, (void *) internal_f, (void *) internal_a); |
252b5132 | 269 | if (tdata == NULL) |
487e54f2 | 270 | goto fail2; |
252b5132 RH |
271 | |
272 | scnhsz = bfd_coff_scnhsz (abfd); | |
dc810e39 | 273 | readsize = (bfd_size_type) nscns * scnhsz; |
a50b1753 | 274 | external_sections = (char *) bfd_alloc (abfd, readsize); |
252b5132 RH |
275 | if (!external_sections) |
276 | goto fail; | |
277 | ||
c8e7bf0d | 278 | if (bfd_bread ((void *) external_sections, readsize, abfd) != readsize) |
252b5132 RH |
279 | goto fail; |
280 | ||
363d7b14 | 281 | /* Set the arch/mach *before* swapping in sections; section header swapping |
244148ad | 282 | may depend on arch/mach info. */ |
c8e7bf0d | 283 | if (! bfd_coff_set_arch_mach_hook (abfd, (void *) internal_f)) |
363d7b14 TW |
284 | goto fail; |
285 | ||
e16bb312 | 286 | /* Now copy data as required; construct all asections etc. */ |
252b5132 RH |
287 | if (nscns != 0) |
288 | { | |
289 | unsigned int i; | |
290 | for (i = 0; i < nscns; i++) | |
291 | { | |
292 | struct internal_scnhdr tmp; | |
293 | bfd_coff_swap_scnhdr_in (abfd, | |
c8e7bf0d NC |
294 | (void *) (external_sections + i * scnhsz), |
295 | (void *) & tmp); | |
252b5132 RH |
296 | if (! make_a_section_from_file (abfd, &tmp, i + 1)) |
297 | goto fail; | |
298 | } | |
299 | } | |
300 | ||
252b5132 RH |
301 | return abfd->xvec; |
302 | ||
303 | fail: | |
304 | bfd_release (abfd, tdata); | |
487e54f2 AM |
305 | fail2: |
306 | abfd->tdata.any = tdata_save; | |
252b5132 RH |
307 | abfd->flags = oflags; |
308 | bfd_get_start_address (abfd) = ostart; | |
309 | return (const bfd_target *) NULL; | |
310 | } | |
311 | ||
312 | /* Turn a COFF file into a BFD, but fail with bfd_error_wrong_format if it is | |
313 | not a COFF file. This is also used by ECOFF. */ | |
314 | ||
315 | const bfd_target * | |
c8e7bf0d | 316 | coff_object_p (bfd *abfd) |
252b5132 | 317 | { |
dc810e39 AM |
318 | bfd_size_type filhsz; |
319 | bfd_size_type aoutsz; | |
320 | unsigned int nscns; | |
c8e7bf0d | 321 | void * filehdr; |
252b5132 RH |
322 | struct internal_filehdr internal_f; |
323 | struct internal_aouthdr internal_a; | |
324 | ||
c8e7bf0d | 325 | /* Figure out how much to read. */ |
252b5132 RH |
326 | filhsz = bfd_coff_filhsz (abfd); |
327 | aoutsz = bfd_coff_aoutsz (abfd); | |
328 | ||
329 | filehdr = bfd_alloc (abfd, filhsz); | |
330 | if (filehdr == NULL) | |
487e54f2 | 331 | return NULL; |
dc810e39 | 332 | if (bfd_bread (filehdr, filhsz, abfd) != filhsz) |
252b5132 RH |
333 | { |
334 | if (bfd_get_error () != bfd_error_system_call) | |
335 | bfd_set_error (bfd_error_wrong_format); | |
487e54f2 AM |
336 | bfd_release (abfd, filehdr); |
337 | return NULL; | |
252b5132 RH |
338 | } |
339 | bfd_coff_swap_filehdr_in (abfd, filehdr, &internal_f); | |
340 | bfd_release (abfd, filehdr); | |
341 | ||
b8819ab2 NC |
342 | /* The XCOFF format has two sizes for the f_opthdr. SMALL_AOUTSZ |
343 | (less than aoutsz) used in object files and AOUTSZ (equal to | |
344 | aoutsz) in executables. The bfd_coff_swap_aouthdr_in function | |
345 | expects this header to be aoutsz bytes in length, so we use that | |
346 | value in the call to bfd_alloc below. But we must be careful to | |
347 | only read in f_opthdr bytes in the call to bfd_bread. We should | |
348 | also attempt to catch corrupt or non-COFF binaries with a strange | |
349 | value for f_opthdr. */ | |
82e51918 | 350 | if (! bfd_coff_bad_format_hook (abfd, &internal_f) |
95f7d9f7 | 351 | || internal_f.f_opthdr > aoutsz) |
252b5132 RH |
352 | { |
353 | bfd_set_error (bfd_error_wrong_format); | |
487e54f2 | 354 | return NULL; |
252b5132 RH |
355 | } |
356 | nscns = internal_f.f_nscns; | |
357 | ||
358 | if (internal_f.f_opthdr) | |
359 | { | |
c8e7bf0d | 360 | void * opthdr; |
252b5132 RH |
361 | |
362 | opthdr = bfd_alloc (abfd, aoutsz); | |
363 | if (opthdr == NULL) | |
487e54f2 | 364 | return NULL; |
dc810e39 | 365 | if (bfd_bread (opthdr, (bfd_size_type) internal_f.f_opthdr, abfd) |
252b5132 RH |
366 | != internal_f.f_opthdr) |
367 | { | |
487e54f2 AM |
368 | bfd_release (abfd, opthdr); |
369 | return NULL; | |
252b5132 | 370 | } |
c8e7bf0d | 371 | bfd_coff_swap_aouthdr_in (abfd, opthdr, (void *) &internal_a); |
487e54f2 | 372 | bfd_release (abfd, opthdr); |
252b5132 RH |
373 | } |
374 | ||
375 | return coff_real_object_p (abfd, nscns, &internal_f, | |
376 | (internal_f.f_opthdr != 0 | |
377 | ? &internal_a | |
378 | : (struct internal_aouthdr *) NULL)); | |
379 | } | |
380 | ||
381 | /* Get the BFD section from a COFF symbol section number. */ | |
382 | ||
383 | asection * | |
91d6fa6a | 384 | coff_section_from_bfd_index (bfd *abfd, int section_index) |
252b5132 | 385 | { |
198beae2 | 386 | struct bfd_section *answer = abfd->sections; |
252b5132 | 387 | |
91d6fa6a | 388 | if (section_index == N_ABS) |
252b5132 | 389 | return bfd_abs_section_ptr; |
91d6fa6a | 390 | if (section_index == N_UNDEF) |
252b5132 | 391 | return bfd_und_section_ptr; |
91d6fa6a | 392 | if (section_index == N_DEBUG) |
252b5132 RH |
393 | return bfd_abs_section_ptr; |
394 | ||
395 | while (answer) | |
396 | { | |
91d6fa6a | 397 | if (answer->target_index == section_index) |
252b5132 RH |
398 | return answer; |
399 | answer = answer->next; | |
400 | } | |
401 | ||
402 | /* We should not reach this point, but the SCO 3.2v4 /lib/libc_s.a | |
403 | has a bad symbol table in biglitpow.o. */ | |
404 | return bfd_und_section_ptr; | |
405 | } | |
406 | ||
407 | /* Get the upper bound of a COFF symbol table. */ | |
408 | ||
409 | long | |
c8e7bf0d | 410 | coff_get_symtab_upper_bound (bfd *abfd) |
252b5132 RH |
411 | { |
412 | if (!bfd_coff_slurp_symbol_table (abfd)) | |
413 | return -1; | |
414 | ||
415 | return (bfd_get_symcount (abfd) + 1) * (sizeof (coff_symbol_type *)); | |
416 | } | |
417 | ||
252b5132 RH |
418 | /* Canonicalize a COFF symbol table. */ |
419 | ||
420 | long | |
c8e7bf0d | 421 | coff_canonicalize_symtab (bfd *abfd, asymbol **alocation) |
252b5132 RH |
422 | { |
423 | unsigned int counter; | |
424 | coff_symbol_type *symbase; | |
425 | coff_symbol_type **location = (coff_symbol_type **) alocation; | |
426 | ||
427 | if (!bfd_coff_slurp_symbol_table (abfd)) | |
428 | return -1; | |
429 | ||
430 | symbase = obj_symbols (abfd); | |
431 | counter = bfd_get_symcount (abfd); | |
432 | while (counter-- > 0) | |
433 | *location++ = symbase++; | |
434 | ||
435 | *location = NULL; | |
436 | ||
437 | return bfd_get_symcount (abfd); | |
438 | } | |
439 | ||
440 | /* Get the name of a symbol. The caller must pass in a buffer of size | |
441 | >= SYMNMLEN + 1. */ | |
442 | ||
443 | const char * | |
c8e7bf0d NC |
444 | _bfd_coff_internal_syment_name (bfd *abfd, |
445 | const struct internal_syment *sym, | |
446 | char *buf) | |
252b5132 RH |
447 | { |
448 | /* FIXME: It's not clear this will work correctly if sizeof | |
449 | (_n_zeroes) != 4. */ | |
450 | if (sym->_n._n_n._n_zeroes != 0 | |
451 | || sym->_n._n_n._n_offset == 0) | |
452 | { | |
453 | memcpy (buf, sym->_n._n_name, SYMNMLEN); | |
454 | buf[SYMNMLEN] = '\0'; | |
455 | return buf; | |
456 | } | |
457 | else | |
458 | { | |
459 | const char *strings; | |
460 | ||
461 | BFD_ASSERT (sym->_n._n_n._n_offset >= STRING_SIZE_SIZE); | |
462 | strings = obj_coff_strings (abfd); | |
463 | if (strings == NULL) | |
464 | { | |
465 | strings = _bfd_coff_read_string_table (abfd); | |
466 | if (strings == NULL) | |
467 | return NULL; | |
468 | } | |
469 | return strings + sym->_n._n_n._n_offset; | |
470 | } | |
471 | } | |
472 | ||
473 | /* Read in and swap the relocs. This returns a buffer holding the | |
b34976b6 | 474 | relocs for section SEC in file ABFD. If CACHE is TRUE and |
252b5132 RH |
475 | INTERNAL_RELOCS is NULL, the relocs read in will be saved in case |
476 | the function is called again. If EXTERNAL_RELOCS is not NULL, it | |
477 | is a buffer large enough to hold the unswapped relocs. If | |
478 | INTERNAL_RELOCS is not NULL, it is a buffer large enough to hold | |
b34976b6 | 479 | the swapped relocs. If REQUIRE_INTERNAL is TRUE, then the return |
252b5132 RH |
480 | value must be INTERNAL_RELOCS. The function returns NULL on error. */ |
481 | ||
482 | struct internal_reloc * | |
c8e7bf0d NC |
483 | _bfd_coff_read_internal_relocs (bfd *abfd, |
484 | asection *sec, | |
485 | bfd_boolean cache, | |
486 | bfd_byte *external_relocs, | |
487 | bfd_boolean require_internal, | |
488 | struct internal_reloc *internal_relocs) | |
252b5132 RH |
489 | { |
490 | bfd_size_type relsz; | |
491 | bfd_byte *free_external = NULL; | |
492 | struct internal_reloc *free_internal = NULL; | |
493 | bfd_byte *erel; | |
494 | bfd_byte *erel_end; | |
495 | struct internal_reloc *irel; | |
dc810e39 | 496 | bfd_size_type amt; |
252b5132 | 497 | |
9d7038d3 MS |
498 | if (sec->reloc_count == 0) |
499 | return internal_relocs; /* Nothing to do. */ | |
500 | ||
252b5132 RH |
501 | if (coff_section_data (abfd, sec) != NULL |
502 | && coff_section_data (abfd, sec)->relocs != NULL) | |
503 | { | |
504 | if (! require_internal) | |
505 | return coff_section_data (abfd, sec)->relocs; | |
506 | memcpy (internal_relocs, coff_section_data (abfd, sec)->relocs, | |
507 | sec->reloc_count * sizeof (struct internal_reloc)); | |
508 | return internal_relocs; | |
509 | } | |
510 | ||
511 | relsz = bfd_coff_relsz (abfd); | |
512 | ||
dc810e39 | 513 | amt = sec->reloc_count * relsz; |
252b5132 RH |
514 | if (external_relocs == NULL) |
515 | { | |
a50b1753 | 516 | free_external = (bfd_byte *) bfd_malloc (amt); |
9d7038d3 | 517 | if (free_external == NULL) |
252b5132 RH |
518 | goto error_return; |
519 | external_relocs = free_external; | |
520 | } | |
521 | ||
522 | if (bfd_seek (abfd, sec->rel_filepos, SEEK_SET) != 0 | |
dc810e39 | 523 | || bfd_bread (external_relocs, amt, abfd) != amt) |
252b5132 RH |
524 | goto error_return; |
525 | ||
526 | if (internal_relocs == NULL) | |
527 | { | |
dc810e39 AM |
528 | amt = sec->reloc_count; |
529 | amt *= sizeof (struct internal_reloc); | |
a50b1753 | 530 | free_internal = (struct internal_reloc *) bfd_malloc (amt); |
9d7038d3 | 531 | if (free_internal == NULL) |
252b5132 RH |
532 | goto error_return; |
533 | internal_relocs = free_internal; | |
534 | } | |
535 | ||
536 | /* Swap in the relocs. */ | |
537 | erel = external_relocs; | |
538 | erel_end = erel + relsz * sec->reloc_count; | |
539 | irel = internal_relocs; | |
540 | for (; erel < erel_end; erel += relsz, irel++) | |
c8e7bf0d | 541 | bfd_coff_swap_reloc_in (abfd, (void *) erel, (void *) irel); |
252b5132 RH |
542 | |
543 | if (free_external != NULL) | |
544 | { | |
545 | free (free_external); | |
546 | free_external = NULL; | |
547 | } | |
548 | ||
9ee2139f | 549 | if (cache && free_internal != NULL) |
252b5132 | 550 | { |
9ee2139f | 551 | if (coff_section_data (abfd, sec) == NULL) |
252b5132 | 552 | { |
9ee2139f MS |
553 | amt = sizeof (struct coff_section_tdata); |
554 | sec->used_by_bfd = bfd_zalloc (abfd, amt); | |
555 | if (sec->used_by_bfd == NULL) | |
556 | goto error_return; | |
557 | coff_section_data (abfd, sec)->contents = NULL; | |
252b5132 | 558 | } |
9ee2139f | 559 | coff_section_data (abfd, sec)->relocs = free_internal; |
252b5132 RH |
560 | } |
561 | ||
562 | return internal_relocs; | |
563 | ||
564 | error_return: | |
565 | if (free_external != NULL) | |
566 | free (free_external); | |
567 | if (free_internal != NULL) | |
568 | free (free_internal); | |
569 | return NULL; | |
570 | } | |
571 | ||
572 | /* Set lineno_count for the output sections of a COFF file. */ | |
573 | ||
574 | int | |
c8e7bf0d | 575 | coff_count_linenumbers (bfd *abfd) |
252b5132 RH |
576 | { |
577 | unsigned int limit = bfd_get_symcount (abfd); | |
578 | unsigned int i; | |
579 | int total = 0; | |
580 | asymbol **p; | |
581 | asection *s; | |
582 | ||
583 | if (limit == 0) | |
584 | { | |
585 | /* This may be from the backend linker, in which case the | |
586 | lineno_count in the sections is correct. */ | |
587 | for (s = abfd->sections; s != NULL; s = s->next) | |
588 | total += s->lineno_count; | |
589 | return total; | |
590 | } | |
591 | ||
592 | for (s = abfd->sections; s != NULL; s = s->next) | |
593 | BFD_ASSERT (s->lineno_count == 0); | |
594 | ||
595 | for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) | |
596 | { | |
597 | asymbol *q_maybe = *p; | |
598 | ||
9bd09e22 | 599 | if (bfd_family_coff (bfd_asymbol_bfd (q_maybe))) |
252b5132 RH |
600 | { |
601 | coff_symbol_type *q = coffsymbol (q_maybe); | |
602 | ||
603 | /* The AIX 4.1 compiler can sometimes generate line numbers | |
604 | attached to debugging symbols. We try to simply ignore | |
605 | those here. */ | |
606 | if (q->lineno != NULL | |
607 | && q->symbol.section->owner != NULL) | |
608 | { | |
609 | /* This symbol has line numbers. Increment the owning | |
610 | section's linenumber count. */ | |
611 | alent *l = q->lineno; | |
612 | ||
84c254c6 | 613 | do |
252b5132 | 614 | { |
84c254c6 | 615 | asection * sec = q->symbol.section->output_section; |
b34976b6 | 616 | |
84c254c6 NC |
617 | /* Do not try to update fields in read-only sections. */ |
618 | if (! bfd_is_const_section (sec)) | |
619 | sec->lineno_count ++; | |
620 | ||
252b5132 | 621 | ++total; |
252b5132 RH |
622 | ++l; |
623 | } | |
84c254c6 | 624 | while (l->line_number != 0); |
252b5132 RH |
625 | } |
626 | } | |
627 | } | |
628 | ||
629 | return total; | |
630 | } | |
631 | ||
632 | /* Takes a bfd and a symbol, returns a pointer to the coff specific | |
633 | area of the symbol if there is one. */ | |
634 | ||
252b5132 | 635 | coff_symbol_type * |
c8e7bf0d NC |
636 | coff_symbol_from (bfd *ignore_abfd ATTRIBUTE_UNUSED, |
637 | asymbol *symbol) | |
252b5132 | 638 | { |
9bd09e22 | 639 | if (!bfd_family_coff (bfd_asymbol_bfd (symbol))) |
252b5132 RH |
640 | return (coff_symbol_type *) NULL; |
641 | ||
642 | if (bfd_asymbol_bfd (symbol)->tdata.coff_obj_data == (coff_data_type *) NULL) | |
643 | return (coff_symbol_type *) NULL; | |
644 | ||
645 | return (coff_symbol_type *) symbol; | |
646 | } | |
647 | ||
648 | static void | |
c8e7bf0d NC |
649 | fixup_symbol_value (bfd *abfd, |
650 | coff_symbol_type *coff_symbol_ptr, | |
651 | struct internal_syment *syment) | |
252b5132 | 652 | { |
c8e7bf0d | 653 | /* Normalize the symbol flags. */ |
68ffbac6 | 654 | if (coff_symbol_ptr->symbol.section |
ac38308c | 655 | && bfd_is_com_section (coff_symbol_ptr->symbol.section)) |
252b5132 | 656 | { |
c8e7bf0d | 657 | /* A common symbol is undefined with a value. */ |
252b5132 RH |
658 | syment->n_scnum = N_UNDEF; |
659 | syment->n_value = coff_symbol_ptr->symbol.value; | |
660 | } | |
703153b5 ILT |
661 | else if ((coff_symbol_ptr->symbol.flags & BSF_DEBUGGING) != 0 |
662 | && (coff_symbol_ptr->symbol.flags & BSF_DEBUGGING_RELOC) == 0) | |
252b5132 RH |
663 | { |
664 | syment->n_value = coff_symbol_ptr->symbol.value; | |
665 | } | |
666 | else if (bfd_is_und_section (coff_symbol_ptr->symbol.section)) | |
667 | { | |
668 | syment->n_scnum = N_UNDEF; | |
669 | syment->n_value = 0; | |
670 | } | |
7bb9db4d | 671 | /* FIXME: Do we need to handle the absolute section here? */ |
252b5132 RH |
672 | else |
673 | { | |
674 | if (coff_symbol_ptr->symbol.section) | |
675 | { | |
676 | syment->n_scnum = | |
677 | coff_symbol_ptr->symbol.section->output_section->target_index; | |
678 | ||
679 | syment->n_value = (coff_symbol_ptr->symbol.value | |
680 | + coff_symbol_ptr->symbol.section->output_offset); | |
681 | if (! obj_pe (abfd)) | |
34cbe64e TW |
682 | { |
683 | syment->n_value += (syment->n_sclass == C_STATLAB) | |
684 | ? coff_symbol_ptr->symbol.section->output_section->lma | |
685 | : coff_symbol_ptr->symbol.section->output_section->vma; | |
686 | } | |
252b5132 RH |
687 | } |
688 | else | |
689 | { | |
690 | BFD_ASSERT (0); | |
691 | /* This can happen, but I don't know why yet (steve@cygnus.com) */ | |
692 | syment->n_scnum = N_ABS; | |
693 | syment->n_value = coff_symbol_ptr->symbol.value; | |
694 | } | |
695 | } | |
696 | } | |
697 | ||
698 | /* Run through all the symbols in the symbol table and work out what | |
699 | their indexes into the symbol table will be when output. | |
700 | ||
701 | Coff requires that each C_FILE symbol points to the next one in the | |
702 | chain, and that the last one points to the first external symbol. We | |
703 | do that here too. */ | |
704 | ||
b34976b6 | 705 | bfd_boolean |
c8e7bf0d | 706 | coff_renumber_symbols (bfd *bfd_ptr, int *first_undef) |
252b5132 RH |
707 | { |
708 | unsigned int symbol_count = bfd_get_symcount (bfd_ptr); | |
709 | asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols; | |
710 | unsigned int native_index = 0; | |
c8e7bf0d | 711 | struct internal_syment *last_file = NULL; |
252b5132 RH |
712 | unsigned int symbol_index; |
713 | ||
714 | /* COFF demands that undefined symbols come after all other symbols. | |
715 | Since we don't need to impose this extra knowledge on all our | |
716 | client programs, deal with that here. Sort the symbol table; | |
717 | just move the undefined symbols to the end, leaving the rest | |
718 | alone. The O'Reilly book says that defined global symbols come | |
719 | at the end before the undefined symbols, so we do that here as | |
720 | well. */ | |
721 | /* @@ Do we have some condition we could test for, so we don't always | |
722 | have to do this? I don't think relocatability is quite right, but | |
723 | I'm not certain. [raeburn:19920508.1711EST] */ | |
724 | { | |
725 | asymbol **newsyms; | |
726 | unsigned int i; | |
dc810e39 | 727 | bfd_size_type amt; |
252b5132 | 728 | |
dc810e39 | 729 | amt = sizeof (asymbol *) * ((bfd_size_type) symbol_count + 1); |
a50b1753 | 730 | newsyms = (asymbol **) bfd_alloc (bfd_ptr, amt); |
252b5132 | 731 | if (!newsyms) |
b34976b6 | 732 | return FALSE; |
252b5132 RH |
733 | bfd_ptr->outsymbols = newsyms; |
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 | for (i = 0; i < symbol_count; i++) | |
744 | if ((symbol_ptr_ptr[i]->flags & BSF_NOT_AT_END) == 0 | |
745 | && !bfd_is_und_section (symbol_ptr_ptr[i]->section) | |
746 | && (bfd_is_com_section (symbol_ptr_ptr[i]->section) | |
747 | || ((symbol_ptr_ptr[i]->flags & BSF_FUNCTION) == 0 | |
748 | && ((symbol_ptr_ptr[i]->flags & (BSF_GLOBAL | BSF_WEAK)) | |
749 | != 0)))) | |
750 | *newsyms++ = symbol_ptr_ptr[i]; | |
751 | ||
752 | *first_undef = newsyms - bfd_ptr->outsymbols; | |
753 | ||
754 | for (i = 0; i < symbol_count; i++) | |
755 | if ((symbol_ptr_ptr[i]->flags & BSF_NOT_AT_END) == 0 | |
756 | && bfd_is_und_section (symbol_ptr_ptr[i]->section)) | |
757 | *newsyms++ = symbol_ptr_ptr[i]; | |
758 | *newsyms = (asymbol *) NULL; | |
759 | symbol_ptr_ptr = bfd_ptr->outsymbols; | |
760 | } | |
761 | ||
762 | for (symbol_index = 0; symbol_index < symbol_count; symbol_index++) | |
763 | { | |
764 | coff_symbol_type *coff_symbol_ptr = coff_symbol_from (bfd_ptr, symbol_ptr_ptr[symbol_index]); | |
244148ad | 765 | symbol_ptr_ptr[symbol_index]->udata.i = symbol_index; |
252b5132 RH |
766 | if (coff_symbol_ptr && coff_symbol_ptr->native) |
767 | { | |
768 | combined_entry_type *s = coff_symbol_ptr->native; | |
769 | int i; | |
770 | ||
771 | if (s->u.syment.n_sclass == C_FILE) | |
772 | { | |
c8e7bf0d | 773 | if (last_file != NULL) |
252b5132 RH |
774 | last_file->n_value = native_index; |
775 | last_file = &(s->u.syment); | |
776 | } | |
777 | else | |
c8e7bf0d NC |
778 | /* Modify the symbol values according to their section and |
779 | type. */ | |
780 | fixup_symbol_value (bfd_ptr, coff_symbol_ptr, &(s->u.syment)); | |
252b5132 | 781 | |
252b5132 RH |
782 | for (i = 0; i < s->u.syment.n_numaux + 1; i++) |
783 | s[i].offset = native_index++; | |
784 | } | |
785 | else | |
c8e7bf0d | 786 | native_index++; |
252b5132 | 787 | } |
c8e7bf0d | 788 | |
252b5132 RH |
789 | obj_conv_table_size (bfd_ptr) = native_index; |
790 | ||
b34976b6 | 791 | return TRUE; |
252b5132 RH |
792 | } |
793 | ||
794 | /* Run thorough the symbol table again, and fix it so that all | |
795 | pointers to entries are changed to the entries' index in the output | |
796 | symbol table. */ | |
797 | ||
798 | void | |
c8e7bf0d | 799 | coff_mangle_symbols (bfd *bfd_ptr) |
252b5132 RH |
800 | { |
801 | unsigned int symbol_count = bfd_get_symcount (bfd_ptr); | |
802 | asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols; | |
803 | unsigned int symbol_index; | |
804 | ||
805 | for (symbol_index = 0; symbol_index < symbol_count; symbol_index++) | |
806 | { | |
807 | coff_symbol_type *coff_symbol_ptr = | |
808 | coff_symbol_from (bfd_ptr, symbol_ptr_ptr[symbol_index]); | |
809 | ||
810 | if (coff_symbol_ptr && coff_symbol_ptr->native) | |
811 | { | |
812 | int i; | |
813 | combined_entry_type *s = coff_symbol_ptr->native; | |
814 | ||
815 | if (s->fix_value) | |
816 | { | |
817 | /* FIXME: We should use a union here. */ | |
dc810e39 | 818 | s->u.syment.n_value = |
d2df793a NC |
819 | (bfd_hostptr_t) ((combined_entry_type *) |
820 | ((bfd_hostptr_t) s->u.syment.n_value))->offset; | |
252b5132 RH |
821 | s->fix_value = 0; |
822 | } | |
823 | if (s->fix_line) | |
824 | { | |
825 | /* The value is the offset into the line number entries | |
826 | for the symbol's section. On output, the symbol's | |
827 | section should be N_DEBUG. */ | |
828 | s->u.syment.n_value = | |
829 | (coff_symbol_ptr->symbol.section->output_section->line_filepos | |
830 | + s->u.syment.n_value * bfd_coff_linesz (bfd_ptr)); | |
831 | coff_symbol_ptr->symbol.section = | |
832 | coff_section_from_bfd_index (bfd_ptr, N_DEBUG); | |
833 | BFD_ASSERT (coff_symbol_ptr->symbol.flags & BSF_DEBUGGING); | |
834 | } | |
835 | for (i = 0; i < s->u.syment.n_numaux; i++) | |
836 | { | |
837 | combined_entry_type *a = s + i + 1; | |
838 | if (a->fix_tag) | |
839 | { | |
840 | a->u.auxent.x_sym.x_tagndx.l = | |
841 | a->u.auxent.x_sym.x_tagndx.p->offset; | |
842 | a->fix_tag = 0; | |
843 | } | |
844 | if (a->fix_end) | |
845 | { | |
846 | a->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l = | |
847 | a->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p->offset; | |
848 | a->fix_end = 0; | |
849 | } | |
850 | if (a->fix_scnlen) | |
851 | { | |
852 | a->u.auxent.x_csect.x_scnlen.l = | |
853 | a->u.auxent.x_csect.x_scnlen.p->offset; | |
854 | a->fix_scnlen = 0; | |
855 | } | |
856 | } | |
857 | } | |
858 | } | |
859 | } | |
860 | ||
861 | static void | |
c8e7bf0d NC |
862 | coff_fix_symbol_name (bfd *abfd, |
863 | asymbol *symbol, | |
864 | combined_entry_type *native, | |
865 | bfd_size_type *string_size_p, | |
866 | asection **debug_string_section_p, | |
867 | bfd_size_type *debug_string_size_p) | |
252b5132 RH |
868 | { |
869 | unsigned int name_length; | |
870 | union internal_auxent *auxent; | |
871 | char *name = (char *) (symbol->name); | |
872 | ||
c8e7bf0d | 873 | if (name == NULL) |
252b5132 | 874 | { |
c8e7bf0d | 875 | /* COFF symbols always have names, so we'll make one up. */ |
252b5132 RH |
876 | symbol->name = "strange"; |
877 | name = (char *) symbol->name; | |
878 | } | |
879 | name_length = strlen (name); | |
880 | ||
881 | if (native->u.syment.n_sclass == C_FILE | |
882 | && native->u.syment.n_numaux > 0) | |
883 | { | |
692b7d62 ILT |
884 | unsigned int filnmlen; |
885 | ||
7f6d05e8 CP |
886 | if (bfd_coff_force_symnames_in_strings (abfd)) |
887 | { | |
244148ad | 888 | native->u.syment._n._n_n._n_offset = |
7f6d05e8 CP |
889 | (*string_size_p + STRING_SIZE_SIZE); |
890 | native->u.syment._n._n_n._n_zeroes = 0; | |
891 | *string_size_p += 6; /* strlen(".file") + 1 */ | |
892 | } | |
893 | else | |
894 | strncpy (native->u.syment._n._n_name, ".file", SYMNMLEN); | |
895 | ||
252b5132 RH |
896 | auxent = &(native + 1)->u.auxent; |
897 | ||
692b7d62 ILT |
898 | filnmlen = bfd_coff_filnmlen (abfd); |
899 | ||
252b5132 RH |
900 | if (bfd_coff_long_filenames (abfd)) |
901 | { | |
692b7d62 | 902 | if (name_length <= filnmlen) |
c8e7bf0d | 903 | strncpy (auxent->x_file.x_fname, name, filnmlen); |
252b5132 RH |
904 | else |
905 | { | |
906 | auxent->x_file.x_n.x_offset = *string_size_p + STRING_SIZE_SIZE; | |
907 | auxent->x_file.x_n.x_zeroes = 0; | |
908 | *string_size_p += name_length + 1; | |
909 | } | |
910 | } | |
911 | else | |
912 | { | |
692b7d62 ILT |
913 | strncpy (auxent->x_file.x_fname, name, filnmlen); |
914 | if (name_length > filnmlen) | |
915 | name[filnmlen] = '\0'; | |
252b5132 RH |
916 | } |
917 | } | |
918 | else | |
919 | { | |
7f6d05e8 | 920 | if (name_length <= SYMNMLEN && !bfd_coff_force_symnames_in_strings (abfd)) |
c8e7bf0d NC |
921 | /* This name will fit into the symbol neatly. */ |
922 | strncpy (native->u.syment._n._n_name, symbol->name, SYMNMLEN); | |
923 | ||
252b5132 RH |
924 | else if (!bfd_coff_symname_in_debug (abfd, &native->u.syment)) |
925 | { | |
926 | native->u.syment._n._n_n._n_offset = (*string_size_p | |
927 | + STRING_SIZE_SIZE); | |
928 | native->u.syment._n._n_n._n_zeroes = 0; | |
929 | *string_size_p += name_length + 1; | |
930 | } | |
931 | else | |
932 | { | |
dc810e39 | 933 | file_ptr filepos; |
7f6d05e8 CP |
934 | bfd_byte buf[4]; |
935 | int prefix_len = bfd_coff_debug_string_prefix_length (abfd); | |
252b5132 RH |
936 | |
937 | /* This name should be written into the .debug section. For | |
938 | some reason each name is preceded by a two byte length | |
939 | and also followed by a null byte. FIXME: We assume that | |
940 | the .debug section has already been created, and that it | |
941 | is large enough. */ | |
942 | if (*debug_string_section_p == (asection *) NULL) | |
943 | *debug_string_section_p = bfd_get_section_by_name (abfd, ".debug"); | |
944 | filepos = bfd_tell (abfd); | |
7f6d05e8 | 945 | if (prefix_len == 4) |
dc810e39 | 946 | bfd_put_32 (abfd, (bfd_vma) (name_length + 1), buf); |
7f6d05e8 | 947 | else |
dc810e39 | 948 | bfd_put_16 (abfd, (bfd_vma) (name_length + 1), buf); |
7f6d05e8 | 949 | |
252b5132 RH |
950 | if (!bfd_set_section_contents (abfd, |
951 | *debug_string_section_p, | |
c8e7bf0d | 952 | (void *) buf, |
252b5132 | 953 | (file_ptr) *debug_string_size_p, |
7f6d05e8 | 954 | (bfd_size_type) prefix_len) |
252b5132 RH |
955 | || !bfd_set_section_contents (abfd, |
956 | *debug_string_section_p, | |
c8e7bf0d | 957 | (void *) symbol->name, |
dc810e39 AM |
958 | (file_ptr) (*debug_string_size_p |
959 | + prefix_len), | |
252b5132 RH |
960 | (bfd_size_type) name_length + 1)) |
961 | abort (); | |
962 | if (bfd_seek (abfd, filepos, SEEK_SET) != 0) | |
963 | abort (); | |
244148ad | 964 | native->u.syment._n._n_n._n_offset = |
7f6d05e8 | 965 | *debug_string_size_p + prefix_len; |
252b5132 | 966 | native->u.syment._n._n_n._n_zeroes = 0; |
7f6d05e8 | 967 | *debug_string_size_p += name_length + 1 + prefix_len; |
252b5132 RH |
968 | } |
969 | } | |
970 | } | |
971 | ||
972 | /* We need to keep track of the symbol index so that when we write out | |
973 | the relocs we can get the index for a symbol. This method is a | |
974 | hack. FIXME. */ | |
975 | ||
976 | #define set_index(symbol, idx) ((symbol)->udata.i = (idx)) | |
977 | ||
978 | /* Write a symbol out to a COFF file. */ | |
979 | ||
b34976b6 | 980 | static bfd_boolean |
c8e7bf0d NC |
981 | coff_write_symbol (bfd *abfd, |
982 | asymbol *symbol, | |
983 | combined_entry_type *native, | |
984 | bfd_vma *written, | |
985 | bfd_size_type *string_size_p, | |
986 | asection **debug_string_section_p, | |
987 | bfd_size_type *debug_string_size_p) | |
252b5132 RH |
988 | { |
989 | unsigned int numaux = native->u.syment.n_numaux; | |
990 | int type = native->u.syment.n_type; | |
a50b1753 | 991 | int n_sclass = (int) native->u.syment.n_sclass; |
88e59394 DK |
992 | asection *output_section = symbol->section->output_section |
993 | ? symbol->section->output_section | |
994 | : symbol->section; | |
c8e7bf0d | 995 | void * buf; |
252b5132 RH |
996 | bfd_size_type symesz; |
997 | ||
998 | if (native->u.syment.n_sclass == C_FILE) | |
999 | symbol->flags |= BSF_DEBUGGING; | |
1000 | ||
1001 | if (symbol->flags & BSF_DEBUGGING | |
1002 | && bfd_is_abs_section (symbol->section)) | |
c8e7bf0d NC |
1003 | native->u.syment.n_scnum = N_DEBUG; |
1004 | ||
252b5132 | 1005 | else if (bfd_is_abs_section (symbol->section)) |
c8e7bf0d NC |
1006 | native->u.syment.n_scnum = N_ABS; |
1007 | ||
252b5132 | 1008 | else if (bfd_is_und_section (symbol->section)) |
c8e7bf0d NC |
1009 | native->u.syment.n_scnum = N_UNDEF; |
1010 | ||
252b5132 | 1011 | else |
c8e7bf0d | 1012 | native->u.syment.n_scnum = |
88e59394 | 1013 | output_section->target_index; |
252b5132 RH |
1014 | |
1015 | coff_fix_symbol_name (abfd, symbol, native, string_size_p, | |
1016 | debug_string_section_p, debug_string_size_p); | |
1017 | ||
1018 | symesz = bfd_coff_symesz (abfd); | |
1019 | buf = bfd_alloc (abfd, symesz); | |
1020 | if (!buf) | |
b34976b6 | 1021 | return FALSE; |
252b5132 | 1022 | bfd_coff_swap_sym_out (abfd, &native->u.syment, buf); |
dc810e39 | 1023 | if (bfd_bwrite (buf, symesz, abfd) != symesz) |
b34976b6 | 1024 | return FALSE; |
252b5132 RH |
1025 | bfd_release (abfd, buf); |
1026 | ||
1027 | if (native->u.syment.n_numaux > 0) | |
1028 | { | |
1029 | bfd_size_type auxesz; | |
1030 | unsigned int j; | |
1031 | ||
1032 | auxesz = bfd_coff_auxesz (abfd); | |
1033 | buf = bfd_alloc (abfd, auxesz); | |
1034 | if (!buf) | |
b34976b6 | 1035 | return FALSE; |
252b5132 RH |
1036 | for (j = 0; j < native->u.syment.n_numaux; j++) |
1037 | { | |
1038 | bfd_coff_swap_aux_out (abfd, | |
1039 | &((native + j + 1)->u.auxent), | |
96d56e9f | 1040 | type, n_sclass, (int) j, |
252b5132 RH |
1041 | native->u.syment.n_numaux, |
1042 | buf); | |
dc810e39 | 1043 | if (bfd_bwrite (buf, auxesz, abfd) != auxesz) |
b34976b6 | 1044 | return FALSE; |
252b5132 RH |
1045 | } |
1046 | bfd_release (abfd, buf); | |
1047 | } | |
1048 | ||
1049 | /* Store the index for use when we write out the relocs. */ | |
1050 | set_index (symbol, *written); | |
1051 | ||
1052 | *written += numaux + 1; | |
b34976b6 | 1053 | return TRUE; |
252b5132 RH |
1054 | } |
1055 | ||
1056 | /* Write out a symbol to a COFF file that does not come from a COFF | |
1057 | file originally. This symbol may have been created by the linker, | |
1058 | or we may be linking a non COFF file to a COFF file. */ | |
1059 | ||
e7ebb214 | 1060 | bfd_boolean |
c8e7bf0d NC |
1061 | coff_write_alien_symbol (bfd *abfd, |
1062 | asymbol *symbol, | |
e7ebb214 | 1063 | struct internal_syment *isym, |
c8e7bf0d NC |
1064 | bfd_vma *written, |
1065 | bfd_size_type *string_size_p, | |
1066 | asection **debug_string_section_p, | |
1067 | bfd_size_type *debug_string_size_p) | |
252b5132 RH |
1068 | { |
1069 | combined_entry_type *native; | |
e7ebb214 | 1070 | combined_entry_type dummy[2]; |
88e59394 DK |
1071 | asection *output_section = symbol->section->output_section |
1072 | ? symbol->section->output_section | |
1073 | : symbol->section; | |
07c7ed6d | 1074 | struct bfd_link_info *link_info = coff_data (abfd)->link_info; |
e7ebb214 | 1075 | bfd_boolean ret; |
252b5132 | 1076 | |
07c7ed6d KT |
1077 | if ((!link_info || link_info->strip_discarded) |
1078 | && !bfd_is_abs_section (symbol->section) | |
1079 | && symbol->section->output_section == bfd_abs_section_ptr) | |
1080 | { | |
1081 | symbol->name = ""; | |
e7ebb214 JB |
1082 | if (isym != NULL) |
1083 | memset (isym, 0, sizeof(*isym)); | |
07c7ed6d KT |
1084 | return TRUE; |
1085 | } | |
e7ebb214 | 1086 | native = dummy; |
252b5132 RH |
1087 | native->u.syment.n_type = T_NULL; |
1088 | native->u.syment.n_flags = 0; | |
e7ebb214 | 1089 | native->u.syment.n_numaux = 0; |
252b5132 RH |
1090 | if (bfd_is_und_section (symbol->section)) |
1091 | { | |
1092 | native->u.syment.n_scnum = N_UNDEF; | |
1093 | native->u.syment.n_value = symbol->value; | |
1094 | } | |
1095 | else if (bfd_is_com_section (symbol->section)) | |
1096 | { | |
1097 | native->u.syment.n_scnum = N_UNDEF; | |
1098 | native->u.syment.n_value = symbol->value; | |
1099 | } | |
e7ebb214 JB |
1100 | else if (symbol->flags & BSF_FILE) |
1101 | { | |
1102 | native->u.syment.n_scnum = N_DEBUG; | |
1103 | native->u.syment.n_numaux = 1; | |
1104 | } | |
252b5132 RH |
1105 | else if (symbol->flags & BSF_DEBUGGING) |
1106 | { | |
1107 | /* There isn't much point to writing out a debugging symbol | |
1108 | unless we are prepared to convert it into COFF debugging | |
1109 | format. So, we just ignore them. We must clobber the symbol | |
1110 | name to keep it from being put in the string table. */ | |
1111 | symbol->name = ""; | |
e7ebb214 JB |
1112 | if (isym != NULL) |
1113 | memset (isym, 0, sizeof(*isym)); | |
b34976b6 | 1114 | return TRUE; |
252b5132 RH |
1115 | } |
1116 | else | |
1117 | { | |
88e59394 | 1118 | native->u.syment.n_scnum = output_section->target_index; |
252b5132 RH |
1119 | native->u.syment.n_value = (symbol->value |
1120 | + symbol->section->output_offset); | |
1121 | if (! obj_pe (abfd)) | |
88e59394 | 1122 | native->u.syment.n_value += output_section->vma; |
252b5132 | 1123 | |
08da05b0 | 1124 | /* Copy the any flags from the file header into the symbol. |
252b5132 RH |
1125 | FIXME: Why? */ |
1126 | { | |
1127 | coff_symbol_type *c = coff_symbol_from (abfd, symbol); | |
1128 | if (c != (coff_symbol_type *) NULL) | |
1129 | native->u.syment.n_flags = bfd_asymbol_bfd (&c->symbol)->flags; | |
1130 | } | |
1131 | } | |
1132 | ||
1133 | native->u.syment.n_type = 0; | |
e7ebb214 JB |
1134 | if (symbol->flags & BSF_FILE) |
1135 | native->u.syment.n_sclass = C_FILE; | |
1136 | else if (symbol->flags & BSF_LOCAL) | |
252b5132 RH |
1137 | native->u.syment.n_sclass = C_STAT; |
1138 | else if (symbol->flags & BSF_WEAK) | |
1139 | native->u.syment.n_sclass = obj_pe (abfd) ? C_NT_WEAK : C_WEAKEXT; | |
1140 | else | |
1141 | native->u.syment.n_sclass = C_EXT; | |
252b5132 | 1142 | |
e7ebb214 JB |
1143 | ret = coff_write_symbol (abfd, symbol, native, written, string_size_p, |
1144 | debug_string_section_p, debug_string_size_p); | |
1145 | if (isym != NULL) | |
1146 | *isym = native->u.syment; | |
1147 | return ret; | |
252b5132 RH |
1148 | } |
1149 | ||
1150 | /* Write a native symbol to a COFF file. */ | |
1151 | ||
b34976b6 | 1152 | static bfd_boolean |
c8e7bf0d NC |
1153 | coff_write_native_symbol (bfd *abfd, |
1154 | coff_symbol_type *symbol, | |
1155 | bfd_vma *written, | |
1156 | bfd_size_type *string_size_p, | |
1157 | asection **debug_string_section_p, | |
1158 | bfd_size_type *debug_string_size_p) | |
252b5132 RH |
1159 | { |
1160 | combined_entry_type *native = symbol->native; | |
1161 | alent *lineno = symbol->lineno; | |
07c7ed6d KT |
1162 | struct bfd_link_info *link_info = coff_data (abfd)->link_info; |
1163 | ||
1164 | if ((!link_info || link_info->strip_discarded) | |
1165 | && !bfd_is_abs_section (symbol->symbol.section) | |
1166 | && symbol->symbol.section->output_section == bfd_abs_section_ptr) | |
1167 | { | |
1168 | symbol->symbol.name = ""; | |
1169 | return TRUE; | |
1170 | } | |
252b5132 RH |
1171 | |
1172 | /* If this symbol has an associated line number, we must store the | |
1173 | symbol index in the line number field. We also tag the auxent to | |
1174 | point to the right place in the lineno table. */ | |
1175 | if (lineno && !symbol->done_lineno && symbol->symbol.section->owner != NULL) | |
1176 | { | |
1177 | unsigned int count = 0; | |
c8e7bf0d | 1178 | |
252b5132 RH |
1179 | lineno[count].u.offset = *written; |
1180 | if (native->u.syment.n_numaux) | |
1181 | { | |
1182 | union internal_auxent *a = &((native + 1)->u.auxent); | |
1183 | ||
1184 | a->x_sym.x_fcnary.x_fcn.x_lnnoptr = | |
1185 | symbol->symbol.section->output_section->moving_line_filepos; | |
1186 | } | |
1187 | ||
1188 | /* Count and relocate all other linenumbers. */ | |
1189 | count++; | |
1190 | while (lineno[count].line_number != 0) | |
1191 | { | |
252b5132 RH |
1192 | lineno[count].u.offset += |
1193 | (symbol->symbol.section->output_section->vma | |
1194 | + symbol->symbol.section->output_offset); | |
252b5132 RH |
1195 | count++; |
1196 | } | |
b34976b6 | 1197 | symbol->done_lineno = TRUE; |
252b5132 | 1198 | |
84c254c6 NC |
1199 | if (! bfd_is_const_section (symbol->symbol.section->output_section)) |
1200 | symbol->symbol.section->output_section->moving_line_filepos += | |
1201 | count * bfd_coff_linesz (abfd); | |
252b5132 RH |
1202 | } |
1203 | ||
1204 | return coff_write_symbol (abfd, &(symbol->symbol), native, written, | |
1205 | string_size_p, debug_string_section_p, | |
1206 | debug_string_size_p); | |
1207 | } | |
1208 | ||
e144674a NC |
1209 | static void |
1210 | null_error_handler (const char * fmt ATTRIBUTE_UNUSED, ...) | |
1211 | { | |
1212 | } | |
1213 | ||
252b5132 RH |
1214 | /* Write out the COFF symbols. */ |
1215 | ||
b34976b6 | 1216 | bfd_boolean |
c8e7bf0d | 1217 | coff_write_symbols (bfd *abfd) |
252b5132 RH |
1218 | { |
1219 | bfd_size_type string_size; | |
1220 | asection *debug_string_section; | |
1221 | bfd_size_type debug_string_size; | |
1222 | unsigned int i; | |
1223 | unsigned int limit = bfd_get_symcount (abfd); | |
f075ee0c | 1224 | bfd_vma written = 0; |
252b5132 RH |
1225 | asymbol **p; |
1226 | ||
1227 | string_size = 0; | |
1228 | debug_string_section = NULL; | |
1229 | debug_string_size = 0; | |
1230 | ||
1231 | /* If this target supports long section names, they must be put into | |
1232 | the string table. This is supported by PE. This code must | |
1233 | handle section names just as they are handled in | |
1234 | coff_write_object_contents. */ | |
1235 | if (bfd_coff_long_section_names (abfd)) | |
1236 | { | |
1237 | asection *o; | |
1238 | ||
1239 | for (o = abfd->sections; o != NULL; o = o->next) | |
1240 | { | |
1241 | size_t len; | |
1242 | ||
1243 | len = strlen (o->name); | |
1244 | if (len > SCNNMLEN) | |
1245 | string_size += len + 1; | |
1246 | } | |
1247 | } | |
1248 | ||
c8e7bf0d | 1249 | /* Seek to the right place. */ |
252b5132 | 1250 | if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0) |
b34976b6 | 1251 | return FALSE; |
252b5132 | 1252 | |
c8e7bf0d | 1253 | /* Output all the symbols we have. */ |
252b5132 RH |
1254 | written = 0; |
1255 | for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) | |
1256 | { | |
1257 | asymbol *symbol = *p; | |
1258 | coff_symbol_type *c_symbol = coff_symbol_from (abfd, symbol); | |
1259 | ||
1260 | if (c_symbol == (coff_symbol_type *) NULL | |
1261 | || c_symbol->native == (combined_entry_type *) NULL) | |
1262 | { | |
e7ebb214 JB |
1263 | if (!coff_write_alien_symbol (abfd, symbol, NULL, &written, |
1264 | &string_size, &debug_string_section, | |
252b5132 | 1265 | &debug_string_size)) |
b34976b6 | 1266 | return FALSE; |
252b5132 RH |
1267 | } |
1268 | else | |
1269 | { | |
e144674a NC |
1270 | if (coff_backend_info (abfd)->_bfd_coff_classify_symbol != NULL) |
1271 | { | |
1272 | bfd_error_handler_type current_error_handler; | |
96d56e9f | 1273 | enum coff_symbol_classification sym_class; |
e144674a NC |
1274 | unsigned char *n_sclass; |
1275 | ||
1276 | /* Suppress error reporting by bfd_coff_classify_symbol. | |
1277 | Error messages can be generated when we are processing a local | |
1278 | symbol which has no associated section and we do not have to | |
1279 | worry about this, all we need to know is that it is local. */ | |
1280 | current_error_handler = bfd_set_error_handler (null_error_handler); | |
96d56e9f NC |
1281 | sym_class = bfd_coff_classify_symbol (abfd, |
1282 | &c_symbol->native->u.syment); | |
e144674a | 1283 | (void) bfd_set_error_handler (current_error_handler); |
96d56e9f | 1284 | |
e144674a NC |
1285 | n_sclass = &c_symbol->native->u.syment.n_sclass; |
1286 | ||
1287 | /* If the symbol class has been changed (eg objcopy/ld script/etc) | |
1288 | we cannot retain the existing sclass from the original symbol. | |
1289 | Weak symbols only have one valid sclass, so just set it always. | |
1290 | If it is not local class and should be, set it C_STAT. | |
1291 | If it is global and not classified as global, or if it is | |
1292 | weak (which is also classified as global), set it C_EXT. */ | |
1293 | ||
1294 | if (symbol->flags & BSF_WEAK) | |
1295 | *n_sclass = obj_pe (abfd) ? C_NT_WEAK : C_WEAKEXT; | |
96d56e9f | 1296 | else if (symbol->flags & BSF_LOCAL && sym_class != COFF_SYMBOL_LOCAL) |
e144674a NC |
1297 | *n_sclass = C_STAT; |
1298 | else if (symbol->flags & BSF_GLOBAL | |
96d56e9f | 1299 | && (sym_class != COFF_SYMBOL_GLOBAL |
e144674a NC |
1300 | #ifdef COFF_WITH_PE |
1301 | || *n_sclass == C_NT_WEAK | |
1302 | #endif | |
1303 | || *n_sclass == C_WEAKEXT)) | |
1304 | c_symbol->native->u.syment.n_sclass = C_EXT; | |
1305 | } | |
1306 | ||
252b5132 RH |
1307 | if (!coff_write_native_symbol (abfd, c_symbol, &written, |
1308 | &string_size, &debug_string_section, | |
1309 | &debug_string_size)) | |
b34976b6 | 1310 | return FALSE; |
252b5132 RH |
1311 | } |
1312 | } | |
1313 | ||
1314 | obj_raw_syment_count (abfd) = written; | |
1315 | ||
c8e7bf0d | 1316 | /* Now write out strings. */ |
252b5132 RH |
1317 | if (string_size != 0) |
1318 | { | |
1319 | unsigned int size = string_size + STRING_SIZE_SIZE; | |
1320 | bfd_byte buffer[STRING_SIZE_SIZE]; | |
1321 | ||
1322 | #if STRING_SIZE_SIZE == 4 | |
dc810e39 | 1323 | H_PUT_32 (abfd, size, buffer); |
252b5132 | 1324 | #else |
dc810e39 | 1325 | #error Change H_PUT_32 |
252b5132 | 1326 | #endif |
c8e7bf0d | 1327 | if (bfd_bwrite ((void *) buffer, (bfd_size_type) sizeof (buffer), abfd) |
dc810e39 | 1328 | != sizeof (buffer)) |
b34976b6 | 1329 | return FALSE; |
252b5132 RH |
1330 | |
1331 | /* Handle long section names. This code must handle section | |
1332 | names just as they are handled in coff_write_object_contents. */ | |
1333 | if (bfd_coff_long_section_names (abfd)) | |
1334 | { | |
1335 | asection *o; | |
1336 | ||
1337 | for (o = abfd->sections; o != NULL; o = o->next) | |
1338 | { | |
1339 | size_t len; | |
1340 | ||
1341 | len = strlen (o->name); | |
1342 | if (len > SCNNMLEN) | |
1343 | { | |
dc810e39 AM |
1344 | if (bfd_bwrite (o->name, (bfd_size_type) (len + 1), abfd) |
1345 | != len + 1) | |
b34976b6 | 1346 | return FALSE; |
252b5132 RH |
1347 | } |
1348 | } | |
1349 | } | |
1350 | ||
1351 | for (p = abfd->outsymbols, i = 0; | |
1352 | i < limit; | |
1353 | i++, p++) | |
1354 | { | |
1355 | asymbol *q = *p; | |
1356 | size_t name_length = strlen (q->name); | |
1357 | coff_symbol_type *c_symbol = coff_symbol_from (abfd, q); | |
1358 | size_t maxlen; | |
1359 | ||
1360 | /* Figure out whether the symbol name should go in the string | |
1361 | table. Symbol names that are short enough are stored | |
1362 | directly in the syment structure. File names permit a | |
1363 | different, longer, length in the syment structure. On | |
1364 | XCOFF, some symbol names are stored in the .debug section | |
1365 | rather than in the string table. */ | |
1366 | ||
1367 | if (c_symbol == NULL | |
1368 | || c_symbol->native == NULL) | |
c8e7bf0d NC |
1369 | /* This is not a COFF symbol, so it certainly is not a |
1370 | file name, nor does it go in the .debug section. */ | |
1371 | maxlen = bfd_coff_force_symnames_in_strings (abfd) ? 0 : SYMNMLEN; | |
1372 | ||
252b5132 RH |
1373 | else if (bfd_coff_symname_in_debug (abfd, |
1374 | &c_symbol->native->u.syment)) | |
c8e7bf0d NC |
1375 | /* This symbol name is in the XCOFF .debug section. |
1376 | Don't write it into the string table. */ | |
1377 | maxlen = name_length; | |
1378 | ||
252b5132 RH |
1379 | else if (c_symbol->native->u.syment.n_sclass == C_FILE |
1380 | && c_symbol->native->u.syment.n_numaux > 0) | |
7f6d05e8 | 1381 | { |
244148ad | 1382 | if (bfd_coff_force_symnames_in_strings (abfd)) |
dc810e39 AM |
1383 | { |
1384 | if (bfd_bwrite (".file", (bfd_size_type) 6, abfd) != 6) | |
b34976b6 | 1385 | return FALSE; |
dc810e39 | 1386 | } |
7f6d05e8 CP |
1387 | maxlen = bfd_coff_filnmlen (abfd); |
1388 | } | |
252b5132 | 1389 | else |
7f6d05e8 | 1390 | maxlen = bfd_coff_force_symnames_in_strings (abfd) ? 0 : SYMNMLEN; |
252b5132 RH |
1391 | |
1392 | if (name_length > maxlen) | |
1393 | { | |
c8e7bf0d | 1394 | if (bfd_bwrite ((void *) (q->name), (bfd_size_type) name_length + 1, |
dc810e39 | 1395 | abfd) != name_length + 1) |
b34976b6 | 1396 | return FALSE; |
252b5132 RH |
1397 | } |
1398 | } | |
1399 | } | |
1400 | else | |
1401 | { | |
1402 | /* We would normally not write anything here, but we'll write | |
1403 | out 4 so that any stupid coff reader which tries to read the | |
1404 | string table even when there isn't one won't croak. */ | |
1405 | unsigned int size = STRING_SIZE_SIZE; | |
1406 | bfd_byte buffer[STRING_SIZE_SIZE]; | |
1407 | ||
1408 | #if STRING_SIZE_SIZE == 4 | |
dc810e39 | 1409 | H_PUT_32 (abfd, size, buffer); |
252b5132 | 1410 | #else |
dc810e39 | 1411 | #error Change H_PUT_32 |
252b5132 | 1412 | #endif |
c8e7bf0d | 1413 | if (bfd_bwrite ((void *) buffer, (bfd_size_type) STRING_SIZE_SIZE, abfd) |
252b5132 | 1414 | != STRING_SIZE_SIZE) |
b34976b6 | 1415 | return FALSE; |
252b5132 RH |
1416 | } |
1417 | ||
1418 | /* Make sure the .debug section was created to be the correct size. | |
1419 | We should create it ourselves on the fly, but we don't because | |
1420 | BFD won't let us write to any section until we know how large all | |
1421 | the sections are. We could still do it by making another pass | |
1422 | over the symbols. FIXME. */ | |
1423 | BFD_ASSERT (debug_string_size == 0 | |
1424 | || (debug_string_section != (asection *) NULL | |
1425 | && (BFD_ALIGN (debug_string_size, | |
1426 | 1 << debug_string_section->alignment_power) | |
eea6121a | 1427 | == debug_string_section->size))); |
252b5132 | 1428 | |
b34976b6 | 1429 | return TRUE; |
252b5132 RH |
1430 | } |
1431 | ||
b34976b6 | 1432 | bfd_boolean |
c8e7bf0d | 1433 | coff_write_linenumbers (bfd *abfd) |
252b5132 RH |
1434 | { |
1435 | asection *s; | |
1436 | bfd_size_type linesz; | |
c8e7bf0d | 1437 | void * buff; |
252b5132 RH |
1438 | |
1439 | linesz = bfd_coff_linesz (abfd); | |
1440 | buff = bfd_alloc (abfd, linesz); | |
1441 | if (!buff) | |
b34976b6 | 1442 | return FALSE; |
252b5132 RH |
1443 | for (s = abfd->sections; s != (asection *) NULL; s = s->next) |
1444 | { | |
1445 | if (s->lineno_count) | |
1446 | { | |
1447 | asymbol **q = abfd->outsymbols; | |
1448 | if (bfd_seek (abfd, s->line_filepos, SEEK_SET) != 0) | |
b34976b6 | 1449 | return FALSE; |
c8e7bf0d | 1450 | /* Find all the linenumbers in this section. */ |
252b5132 RH |
1451 | while (*q) |
1452 | { | |
1453 | asymbol *p = *q; | |
1454 | if (p->section->output_section == s) | |
1455 | { | |
1456 | alent *l = | |
1457 | BFD_SEND (bfd_asymbol_bfd (p), _get_lineno, | |
1458 | (bfd_asymbol_bfd (p), p)); | |
1459 | if (l) | |
1460 | { | |
c8e7bf0d | 1461 | /* Found a linenumber entry, output. */ |
252b5132 | 1462 | struct internal_lineno out; |
c8e7bf0d | 1463 | memset ((void *) & out, 0, sizeof (out)); |
252b5132 RH |
1464 | out.l_lnno = 0; |
1465 | out.l_addr.l_symndx = l->u.offset; | |
1466 | bfd_coff_swap_lineno_out (abfd, &out, buff); | |
dc810e39 AM |
1467 | if (bfd_bwrite (buff, (bfd_size_type) linesz, abfd) |
1468 | != linesz) | |
b34976b6 | 1469 | return FALSE; |
252b5132 RH |
1470 | l++; |
1471 | while (l->line_number) | |
1472 | { | |
1473 | out.l_lnno = l->line_number; | |
1474 | out.l_addr.l_symndx = l->u.offset; | |
1475 | bfd_coff_swap_lineno_out (abfd, &out, buff); | |
dc810e39 AM |
1476 | if (bfd_bwrite (buff, (bfd_size_type) linesz, abfd) |
1477 | != linesz) | |
b34976b6 | 1478 | return FALSE; |
252b5132 RH |
1479 | l++; |
1480 | } | |
1481 | } | |
1482 | } | |
1483 | q++; | |
1484 | } | |
1485 | } | |
1486 | } | |
1487 | bfd_release (abfd, buff); | |
b34976b6 | 1488 | return TRUE; |
252b5132 RH |
1489 | } |
1490 | ||
252b5132 | 1491 | alent * |
c8e7bf0d | 1492 | coff_get_lineno (bfd *ignore_abfd ATTRIBUTE_UNUSED, asymbol *symbol) |
252b5132 RH |
1493 | { |
1494 | return coffsymbol (symbol)->lineno; | |
1495 | } | |
1496 | ||
252b5132 RH |
1497 | /* This function transforms the offsets into the symbol table into |
1498 | pointers to syments. */ | |
1499 | ||
1500 | static void | |
c8e7bf0d NC |
1501 | coff_pointerize_aux (bfd *abfd, |
1502 | combined_entry_type *table_base, | |
1503 | combined_entry_type *symbol, | |
1504 | unsigned int indaux, | |
1505 | combined_entry_type *auxent) | |
252b5132 RH |
1506 | { |
1507 | unsigned int type = symbol->u.syment.n_type; | |
96d56e9f | 1508 | unsigned int n_sclass = symbol->u.syment.n_sclass; |
252b5132 RH |
1509 | |
1510 | if (coff_backend_info (abfd)->_bfd_coff_pointerize_aux_hook) | |
1511 | { | |
1512 | if ((*coff_backend_info (abfd)->_bfd_coff_pointerize_aux_hook) | |
1513 | (abfd, table_base, symbol, indaux, auxent)) | |
1514 | return; | |
1515 | } | |
1516 | ||
c8e7bf0d | 1517 | /* Don't bother if this is a file or a section. */ |
96d56e9f | 1518 | if (n_sclass == C_STAT && type == T_NULL) |
252b5132 | 1519 | return; |
96d56e9f | 1520 | if (n_sclass == C_FILE) |
252b5132 RH |
1521 | return; |
1522 | ||
c8e7bf0d NC |
1523 | /* Otherwise patch up. */ |
1524 | #define N_TMASK coff_data (abfd)->local_n_tmask | |
252b5132 | 1525 | #define N_BTSHFT coff_data (abfd)->local_n_btshft |
68ffbac6 | 1526 | |
96d56e9f NC |
1527 | if ((ISFCN (type) || ISTAG (n_sclass) || n_sclass == C_BLOCK |
1528 | || n_sclass == C_FCN) | |
252b5132 RH |
1529 | && auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l > 0) |
1530 | { | |
1531 | auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p = | |
1532 | table_base + auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l; | |
1533 | auxent->fix_end = 1; | |
1534 | } | |
1535 | /* A negative tagndx is meaningless, but the SCO 3.2v4 cc can | |
1536 | generate one, so we must be careful to ignore it. */ | |
1537 | if (auxent->u.auxent.x_sym.x_tagndx.l > 0) | |
1538 | { | |
1539 | auxent->u.auxent.x_sym.x_tagndx.p = | |
1540 | table_base + auxent->u.auxent.x_sym.x_tagndx.l; | |
1541 | auxent->fix_tag = 1; | |
1542 | } | |
1543 | } | |
1544 | ||
1545 | /* Allocate space for the ".debug" section, and read it. | |
1546 | We did not read the debug section until now, because | |
244148ad | 1547 | we didn't want to go to the trouble until someone needed it. */ |
252b5132 RH |
1548 | |
1549 | static char * | |
c8e7bf0d | 1550 | build_debug_section (bfd *abfd) |
252b5132 RH |
1551 | { |
1552 | char *debug_section; | |
dc810e39 AM |
1553 | file_ptr position; |
1554 | bfd_size_type sec_size; | |
252b5132 RH |
1555 | |
1556 | asection *sect = bfd_get_section_by_name (abfd, ".debug"); | |
1557 | ||
1558 | if (!sect) | |
1559 | { | |
1560 | bfd_set_error (bfd_error_no_debug_section); | |
1561 | return NULL; | |
1562 | } | |
1563 | ||
eea6121a | 1564 | sec_size = sect->size; |
a50b1753 | 1565 | debug_section = (char *) bfd_alloc (abfd, sec_size); |
252b5132 RH |
1566 | if (debug_section == NULL) |
1567 | return NULL; | |
1568 | ||
244148ad | 1569 | /* Seek to the beginning of the `.debug' section and read it. |
252b5132 RH |
1570 | Save the current position first; it is needed by our caller. |
1571 | Then read debug section and reset the file pointer. */ | |
1572 | ||
1573 | position = bfd_tell (abfd); | |
1574 | if (bfd_seek (abfd, sect->filepos, SEEK_SET) != 0 | |
dc810e39 | 1575 | || bfd_bread (debug_section, sec_size, abfd) != sec_size |
252b5132 RH |
1576 | || bfd_seek (abfd, position, SEEK_SET) != 0) |
1577 | return NULL; | |
1578 | return debug_section; | |
1579 | } | |
1580 | ||
252b5132 RH |
1581 | /* Return a pointer to a malloc'd copy of 'name'. 'name' may not be |
1582 | \0-terminated, but will not exceed 'maxlen' characters. The copy *will* | |
1583 | be \0-terminated. */ | |
c8e7bf0d | 1584 | |
252b5132 | 1585 | static char * |
c8e7bf0d | 1586 | copy_name (bfd *abfd, char *name, size_t maxlen) |
252b5132 | 1587 | { |
dc810e39 | 1588 | size_t len; |
252b5132 RH |
1589 | char *newname; |
1590 | ||
1591 | for (len = 0; len < maxlen; ++len) | |
c8e7bf0d NC |
1592 | if (name[len] == '\0') |
1593 | break; | |
1594 | ||
a50b1753 | 1595 | if ((newname = (char *) bfd_alloc (abfd, (bfd_size_type) len + 1)) == NULL) |
c8e7bf0d | 1596 | return NULL; |
252b5132 | 1597 | |
252b5132 RH |
1598 | strncpy (newname, name, len); |
1599 | newname[len] = '\0'; | |
1600 | return newname; | |
1601 | } | |
1602 | ||
1603 | /* Read in the external symbols. */ | |
1604 | ||
b34976b6 | 1605 | bfd_boolean |
c8e7bf0d | 1606 | _bfd_coff_get_external_symbols (bfd *abfd) |
252b5132 RH |
1607 | { |
1608 | bfd_size_type symesz; | |
dc810e39 | 1609 | bfd_size_type size; |
c8e7bf0d | 1610 | void * syms; |
252b5132 RH |
1611 | |
1612 | if (obj_coff_external_syms (abfd) != NULL) | |
b34976b6 | 1613 | return TRUE; |
252b5132 RH |
1614 | |
1615 | symesz = bfd_coff_symesz (abfd); | |
1616 | ||
1617 | size = obj_raw_syment_count (abfd) * symesz; | |
353c5574 MS |
1618 | if (size == 0) |
1619 | return TRUE; | |
252b5132 | 1620 | |
c8e7bf0d | 1621 | syms = bfd_malloc (size); |
353c5574 | 1622 | if (syms == NULL) |
b34976b6 | 1623 | return FALSE; |
252b5132 RH |
1624 | |
1625 | if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0 | |
dc810e39 | 1626 | || bfd_bread (syms, size, abfd) != size) |
252b5132 RH |
1627 | { |
1628 | if (syms != NULL) | |
1629 | free (syms); | |
b34976b6 | 1630 | return FALSE; |
252b5132 RH |
1631 | } |
1632 | ||
1633 | obj_coff_external_syms (abfd) = syms; | |
1634 | ||
b34976b6 | 1635 | return TRUE; |
252b5132 RH |
1636 | } |
1637 | ||
1638 | /* Read in the external strings. The strings are not loaded until | |
1639 | they are needed. This is because we have no simple way of | |
1640 | detecting a missing string table in an archive. */ | |
1641 | ||
1642 | const char * | |
c8e7bf0d | 1643 | _bfd_coff_read_string_table (bfd *abfd) |
252b5132 RH |
1644 | { |
1645 | char extstrsize[STRING_SIZE_SIZE]; | |
dc810e39 | 1646 | bfd_size_type strsize; |
252b5132 | 1647 | char *strings; |
dc810e39 | 1648 | file_ptr pos; |
252b5132 RH |
1649 | |
1650 | if (obj_coff_strings (abfd) != NULL) | |
1651 | return obj_coff_strings (abfd); | |
1652 | ||
1653 | if (obj_sym_filepos (abfd) == 0) | |
1654 | { | |
1655 | bfd_set_error (bfd_error_no_symbols); | |
1656 | return NULL; | |
1657 | } | |
1658 | ||
dc810e39 AM |
1659 | pos = obj_sym_filepos (abfd); |
1660 | pos += obj_raw_syment_count (abfd) * bfd_coff_symesz (abfd); | |
1661 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) | |
252b5132 | 1662 | return NULL; |
244148ad | 1663 | |
dc810e39 AM |
1664 | if (bfd_bread (extstrsize, (bfd_size_type) sizeof extstrsize, abfd) |
1665 | != sizeof extstrsize) | |
252b5132 RH |
1666 | { |
1667 | if (bfd_get_error () != bfd_error_file_truncated) | |
1668 | return NULL; | |
1669 | ||
1670 | /* There is no string table. */ | |
1671 | strsize = STRING_SIZE_SIZE; | |
1672 | } | |
1673 | else | |
1674 | { | |
1675 | #if STRING_SIZE_SIZE == 4 | |
dc810e39 | 1676 | strsize = H_GET_32 (abfd, extstrsize); |
252b5132 | 1677 | #else |
dc810e39 | 1678 | #error Change H_GET_32 |
252b5132 RH |
1679 | #endif |
1680 | } | |
1681 | ||
1682 | if (strsize < STRING_SIZE_SIZE) | |
1683 | { | |
1684 | (*_bfd_error_handler) | |
d003868e | 1685 | (_("%B: bad string table size %lu"), abfd, (unsigned long) strsize); |
252b5132 RH |
1686 | bfd_set_error (bfd_error_bad_value); |
1687 | return NULL; | |
1688 | } | |
1689 | ||
a50b1753 | 1690 | strings = (char *) bfd_malloc (strsize); |
252b5132 RH |
1691 | if (strings == NULL) |
1692 | return NULL; | |
1693 | ||
dc810e39 | 1694 | if (bfd_bread (strings + STRING_SIZE_SIZE, strsize - STRING_SIZE_SIZE, abfd) |
252b5132 RH |
1695 | != strsize - STRING_SIZE_SIZE) |
1696 | { | |
1697 | free (strings); | |
1698 | return NULL; | |
1699 | } | |
1700 | ||
1701 | obj_coff_strings (abfd) = strings; | |
1702 | ||
1703 | return strings; | |
1704 | } | |
1705 | ||
1706 | /* Free up the external symbols and strings read from a COFF file. */ | |
1707 | ||
b34976b6 | 1708 | bfd_boolean |
c8e7bf0d | 1709 | _bfd_coff_free_symbols (bfd *abfd) |
252b5132 RH |
1710 | { |
1711 | if (obj_coff_external_syms (abfd) != NULL | |
1712 | && ! obj_coff_keep_syms (abfd)) | |
1713 | { | |
1714 | free (obj_coff_external_syms (abfd)); | |
1715 | obj_coff_external_syms (abfd) = NULL; | |
1716 | } | |
1717 | if (obj_coff_strings (abfd) != NULL | |
1718 | && ! obj_coff_keep_strings (abfd)) | |
1719 | { | |
1720 | free (obj_coff_strings (abfd)); | |
1721 | obj_coff_strings (abfd) = NULL; | |
1722 | } | |
b34976b6 | 1723 | return TRUE; |
252b5132 RH |
1724 | } |
1725 | ||
1726 | /* Read a symbol table into freshly bfd_allocated memory, swap it, and | |
1727 | knit the symbol names into a normalized form. By normalized here I | |
1728 | mean that all symbols have an n_offset pointer that points to a null- | |
1729 | terminated string. */ | |
1730 | ||
1731 | combined_entry_type * | |
c8e7bf0d | 1732 | coff_get_normalized_symtab (bfd *abfd) |
252b5132 RH |
1733 | { |
1734 | combined_entry_type *internal; | |
1735 | combined_entry_type *internal_ptr; | |
1736 | combined_entry_type *symbol_ptr; | |
1737 | combined_entry_type *internal_end; | |
dc810e39 | 1738 | size_t symesz; |
252b5132 RH |
1739 | char *raw_src; |
1740 | char *raw_end; | |
1741 | const char *string_table = NULL; | |
1742 | char *debug_section = NULL; | |
dc810e39 | 1743 | bfd_size_type size; |
252b5132 RH |
1744 | |
1745 | if (obj_raw_syments (abfd) != NULL) | |
1746 | return obj_raw_syments (abfd); | |
1747 | ||
1748 | size = obj_raw_syment_count (abfd) * sizeof (combined_entry_type); | |
a50b1753 | 1749 | internal = (combined_entry_type *) bfd_zalloc (abfd, size); |
252b5132 RH |
1750 | if (internal == NULL && size != 0) |
1751 | return NULL; | |
1752 | internal_end = internal + obj_raw_syment_count (abfd); | |
1753 | ||
1754 | if (! _bfd_coff_get_external_symbols (abfd)) | |
1755 | return NULL; | |
1756 | ||
1757 | raw_src = (char *) obj_coff_external_syms (abfd); | |
1758 | ||
c8e7bf0d | 1759 | /* Mark the end of the symbols. */ |
252b5132 RH |
1760 | symesz = bfd_coff_symesz (abfd); |
1761 | raw_end = (char *) raw_src + obj_raw_syment_count (abfd) * symesz; | |
1762 | ||
1763 | /* FIXME SOMEDAY. A string table size of zero is very weird, but | |
1764 | probably possible. If one shows up, it will probably kill us. */ | |
1765 | ||
c8e7bf0d | 1766 | /* Swap all the raw entries. */ |
252b5132 RH |
1767 | for (internal_ptr = internal; |
1768 | raw_src < raw_end; | |
1769 | raw_src += symesz, internal_ptr++) | |
1770 | { | |
1771 | ||
1772 | unsigned int i; | |
c8e7bf0d NC |
1773 | bfd_coff_swap_sym_in (abfd, (void *) raw_src, |
1774 | (void *) & internal_ptr->u.syment); | |
252b5132 RH |
1775 | symbol_ptr = internal_ptr; |
1776 | ||
1777 | for (i = 0; | |
1778 | i < symbol_ptr->u.syment.n_numaux; | |
1779 | i++) | |
1780 | { | |
1781 | internal_ptr++; | |
1782 | raw_src += symesz; | |
c8e7bf0d | 1783 | bfd_coff_swap_aux_in (abfd, (void *) raw_src, |
252b5132 RH |
1784 | symbol_ptr->u.syment.n_type, |
1785 | symbol_ptr->u.syment.n_sclass, | |
dc810e39 | 1786 | (int) i, symbol_ptr->u.syment.n_numaux, |
252b5132 RH |
1787 | &(internal_ptr->u.auxent)); |
1788 | coff_pointerize_aux (abfd, internal, symbol_ptr, i, | |
1789 | internal_ptr); | |
1790 | } | |
1791 | } | |
1792 | ||
1793 | /* Free the raw symbols, but not the strings (if we have them). */ | |
b34976b6 | 1794 | obj_coff_keep_strings (abfd) = TRUE; |
252b5132 RH |
1795 | if (! _bfd_coff_free_symbols (abfd)) |
1796 | return NULL; | |
1797 | ||
1798 | for (internal_ptr = internal; internal_ptr < internal_end; | |
1799 | internal_ptr++) | |
1800 | { | |
1801 | if (internal_ptr->u.syment.n_sclass == C_FILE | |
1802 | && internal_ptr->u.syment.n_numaux > 0) | |
1803 | { | |
c8e7bf0d NC |
1804 | /* Make a file symbol point to the name in the auxent, since |
1805 | the text ".file" is redundant. */ | |
252b5132 RH |
1806 | if ((internal_ptr + 1)->u.auxent.x_file.x_n.x_zeroes == 0) |
1807 | { | |
c8e7bf0d | 1808 | /* The filename is a long one, point into the string table. */ |
252b5132 RH |
1809 | if (string_table == NULL) |
1810 | { | |
1811 | string_table = _bfd_coff_read_string_table (abfd); | |
1812 | if (string_table == NULL) | |
1813 | return NULL; | |
1814 | } | |
1815 | ||
1816 | internal_ptr->u.syment._n._n_n._n_offset = | |
d2df793a | 1817 | ((bfd_hostptr_t) |
252b5132 RH |
1818 | (string_table |
1819 | + (internal_ptr + 1)->u.auxent.x_file.x_n.x_offset)); | |
1820 | } | |
1821 | else | |
1822 | { | |
7bb9db4d ILT |
1823 | /* Ordinary short filename, put into memory anyway. The |
1824 | Microsoft PE tools sometimes store a filename in | |
1825 | multiple AUX entries. */ | |
ec0ef80e DD |
1826 | if (internal_ptr->u.syment.n_numaux > 1 |
1827 | && coff_data (abfd)->pe) | |
c8e7bf0d | 1828 | internal_ptr->u.syment._n._n_n._n_offset = |
d2df793a | 1829 | ((bfd_hostptr_t) |
c8e7bf0d NC |
1830 | copy_name (abfd, |
1831 | (internal_ptr + 1)->u.auxent.x_file.x_fname, | |
1832 | internal_ptr->u.syment.n_numaux * symesz)); | |
ec0ef80e | 1833 | else |
c8e7bf0d | 1834 | internal_ptr->u.syment._n._n_n._n_offset = |
d2df793a | 1835 | ((bfd_hostptr_t) |
c8e7bf0d NC |
1836 | copy_name (abfd, |
1837 | (internal_ptr + 1)->u.auxent.x_file.x_fname, | |
1838 | (size_t) bfd_coff_filnmlen (abfd))); | |
252b5132 RH |
1839 | } |
1840 | } | |
1841 | else | |
1842 | { | |
1843 | if (internal_ptr->u.syment._n._n_n._n_zeroes != 0) | |
1844 | { | |
1845 | /* This is a "short" name. Make it long. */ | |
dc810e39 AM |
1846 | size_t i; |
1847 | char *newstring; | |
252b5132 | 1848 | |
c8e7bf0d | 1849 | /* Find the length of this string without walking into memory |
252b5132 RH |
1850 | that isn't ours. */ |
1851 | for (i = 0; i < 8; ++i) | |
dc810e39 AM |
1852 | if (internal_ptr->u.syment._n._n_name[i] == '\0') |
1853 | break; | |
252b5132 | 1854 | |
a50b1753 | 1855 | newstring = (char *) bfd_zalloc (abfd, (bfd_size_type) (i + 1)); |
dc810e39 | 1856 | if (newstring == NULL) |
c8e7bf0d | 1857 | return NULL; |
dc810e39 | 1858 | strncpy (newstring, internal_ptr->u.syment._n._n_name, i); |
d2df793a | 1859 | internal_ptr->u.syment._n._n_n._n_offset = (bfd_hostptr_t) newstring; |
252b5132 RH |
1860 | internal_ptr->u.syment._n._n_n._n_zeroes = 0; |
1861 | } | |
1862 | else if (internal_ptr->u.syment._n._n_n._n_offset == 0) | |
649aeae3 | 1863 | internal_ptr->u.syment._n._n_n._n_offset = (bfd_hostptr_t) ""; |
252b5132 RH |
1864 | else if (!bfd_coff_symname_in_debug (abfd, &internal_ptr->u.syment)) |
1865 | { | |
1866 | /* Long name already. Point symbol at the string in the | |
1867 | table. */ | |
1868 | if (string_table == NULL) | |
1869 | { | |
1870 | string_table = _bfd_coff_read_string_table (abfd); | |
1871 | if (string_table == NULL) | |
1872 | return NULL; | |
1873 | } | |
1874 | internal_ptr->u.syment._n._n_n._n_offset = | |
d2df793a | 1875 | ((bfd_hostptr_t) |
252b5132 RH |
1876 | (string_table |
1877 | + internal_ptr->u.syment._n._n_n._n_offset)); | |
1878 | } | |
1879 | else | |
1880 | { | |
1881 | /* Long name in debug section. Very similar. */ | |
1882 | if (debug_section == NULL) | |
1883 | debug_section = build_debug_section (abfd); | |
d2df793a | 1884 | internal_ptr->u.syment._n._n_n._n_offset = (bfd_hostptr_t) |
252b5132 RH |
1885 | (debug_section + internal_ptr->u.syment._n._n_n._n_offset); |
1886 | } | |
1887 | } | |
1888 | internal_ptr += internal_ptr->u.syment.n_numaux; | |
1889 | } | |
1890 | ||
1891 | obj_raw_syments (abfd) = internal; | |
1892 | BFD_ASSERT (obj_raw_syment_count (abfd) | |
1893 | == (unsigned int) (internal_ptr - internal)); | |
1894 | ||
c8e7bf0d NC |
1895 | return internal; |
1896 | } | |
252b5132 RH |
1897 | |
1898 | long | |
c8e7bf0d | 1899 | coff_get_reloc_upper_bound (bfd *abfd, sec_ptr asect) |
252b5132 RH |
1900 | { |
1901 | if (bfd_get_format (abfd) != bfd_object) | |
1902 | { | |
1903 | bfd_set_error (bfd_error_invalid_operation); | |
1904 | return -1; | |
1905 | } | |
1906 | return (asect->reloc_count + 1) * sizeof (arelent *); | |
1907 | } | |
1908 | ||
1909 | asymbol * | |
c8e7bf0d | 1910 | coff_make_empty_symbol (bfd *abfd) |
252b5132 | 1911 | { |
dc810e39 | 1912 | bfd_size_type amt = sizeof (coff_symbol_type); |
d3ce72d0 | 1913 | coff_symbol_type *new_symbol = (coff_symbol_type *) bfd_zalloc (abfd, amt); |
c8e7bf0d | 1914 | |
d3ce72d0 | 1915 | if (new_symbol == NULL) |
c8e7bf0d | 1916 | return NULL; |
d3ce72d0 NC |
1917 | new_symbol->symbol.section = 0; |
1918 | new_symbol->native = 0; | |
1919 | new_symbol->lineno = NULL; | |
1920 | new_symbol->done_lineno = FALSE; | |
1921 | new_symbol->symbol.the_bfd = abfd; | |
c8e7bf0d | 1922 | |
d3ce72d0 | 1923 | return & new_symbol->symbol; |
252b5132 RH |
1924 | } |
1925 | ||
1926 | /* Make a debugging symbol. */ | |
1927 | ||
1928 | asymbol * | |
c8e7bf0d NC |
1929 | coff_bfd_make_debug_symbol (bfd *abfd, |
1930 | void * ptr ATTRIBUTE_UNUSED, | |
1931 | unsigned long sz ATTRIBUTE_UNUSED) | |
252b5132 | 1932 | { |
dc810e39 | 1933 | bfd_size_type amt = sizeof (coff_symbol_type); |
d3ce72d0 | 1934 | coff_symbol_type *new_symbol = (coff_symbol_type *) bfd_alloc (abfd, amt); |
c8e7bf0d | 1935 | |
d3ce72d0 | 1936 | if (new_symbol == NULL) |
c8e7bf0d | 1937 | return NULL; |
252b5132 RH |
1938 | /* @@ The 10 is a guess at a plausible maximum number of aux entries |
1939 | (but shouldn't be a constant). */ | |
dc810e39 | 1940 | amt = sizeof (combined_entry_type) * 10; |
d3ce72d0 NC |
1941 | new_symbol->native = (combined_entry_type *) bfd_zalloc (abfd, amt); |
1942 | if (!new_symbol->native) | |
c8e7bf0d | 1943 | return NULL; |
d3ce72d0 NC |
1944 | new_symbol->symbol.section = bfd_abs_section_ptr; |
1945 | new_symbol->symbol.flags = BSF_DEBUGGING; | |
1946 | new_symbol->lineno = NULL; | |
1947 | new_symbol->done_lineno = FALSE; | |
1948 | new_symbol->symbol.the_bfd = abfd; | |
68ffbac6 | 1949 | |
d3ce72d0 | 1950 | return & new_symbol->symbol; |
252b5132 RH |
1951 | } |
1952 | ||
252b5132 | 1953 | void |
c8e7bf0d | 1954 | coff_get_symbol_info (bfd *abfd, asymbol *symbol, symbol_info *ret) |
252b5132 RH |
1955 | { |
1956 | bfd_symbol_info (symbol, ret); | |
c8e7bf0d | 1957 | |
252b5132 RH |
1958 | if (coffsymbol (symbol)->native != NULL |
1959 | && coffsymbol (symbol)->native->fix_value) | |
c8e7bf0d | 1960 | ret->value = coffsymbol (symbol)->native->u.syment.n_value - |
d2df793a | 1961 | (bfd_hostptr_t) obj_raw_syments (abfd); |
252b5132 RH |
1962 | } |
1963 | ||
1964 | /* Return the COFF syment for a symbol. */ | |
1965 | ||
b34976b6 | 1966 | bfd_boolean |
c8e7bf0d NC |
1967 | bfd_coff_get_syment (bfd *abfd, |
1968 | asymbol *symbol, | |
1969 | struct internal_syment *psyment) | |
252b5132 RH |
1970 | { |
1971 | coff_symbol_type *csym; | |
1972 | ||
1973 | csym = coff_symbol_from (abfd, symbol); | |
1974 | if (csym == NULL || csym->native == NULL) | |
1975 | { | |
1976 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 1977 | return FALSE; |
252b5132 RH |
1978 | } |
1979 | ||
1980 | *psyment = csym->native->u.syment; | |
1981 | ||
1982 | if (csym->native->fix_value) | |
dc810e39 | 1983 | psyment->n_value = psyment->n_value - |
d2df793a | 1984 | (bfd_hostptr_t) obj_raw_syments (abfd); |
252b5132 RH |
1985 | |
1986 | /* FIXME: We should handle fix_line here. */ | |
1987 | ||
b34976b6 | 1988 | return TRUE; |
252b5132 RH |
1989 | } |
1990 | ||
1991 | /* Return the COFF auxent for a symbol. */ | |
1992 | ||
b34976b6 | 1993 | bfd_boolean |
c8e7bf0d NC |
1994 | bfd_coff_get_auxent (bfd *abfd, |
1995 | asymbol *symbol, | |
1996 | int indx, | |
1997 | union internal_auxent *pauxent) | |
252b5132 RH |
1998 | { |
1999 | coff_symbol_type *csym; | |
2000 | combined_entry_type *ent; | |
2001 | ||
2002 | csym = coff_symbol_from (abfd, symbol); | |
2003 | ||
2004 | if (csym == NULL | |
2005 | || csym->native == NULL | |
2006 | || indx >= csym->native->u.syment.n_numaux) | |
2007 | { | |
2008 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 2009 | return FALSE; |
252b5132 RH |
2010 | } |
2011 | ||
2012 | ent = csym->native + indx + 1; | |
2013 | ||
2014 | *pauxent = ent->u.auxent; | |
2015 | ||
2016 | if (ent->fix_tag) | |
2017 | pauxent->x_sym.x_tagndx.l = | |
2018 | ((combined_entry_type *) pauxent->x_sym.x_tagndx.p | |
2019 | - obj_raw_syments (abfd)); | |
2020 | ||
2021 | if (ent->fix_end) | |
2022 | pauxent->x_sym.x_fcnary.x_fcn.x_endndx.l = | |
2023 | ((combined_entry_type *) pauxent->x_sym.x_fcnary.x_fcn.x_endndx.p | |
2024 | - obj_raw_syments (abfd)); | |
2025 | ||
2026 | if (ent->fix_scnlen) | |
2027 | pauxent->x_csect.x_scnlen.l = | |
2028 | ((combined_entry_type *) pauxent->x_csect.x_scnlen.p | |
2029 | - obj_raw_syments (abfd)); | |
2030 | ||
b34976b6 | 2031 | return TRUE; |
252b5132 RH |
2032 | } |
2033 | ||
2034 | /* Print out information about COFF symbol. */ | |
2035 | ||
2036 | void | |
c8e7bf0d NC |
2037 | coff_print_symbol (bfd *abfd, |
2038 | void * filep, | |
2039 | asymbol *symbol, | |
2040 | bfd_print_symbol_type how) | |
252b5132 | 2041 | { |
c8e7bf0d | 2042 | FILE * file = (FILE *) filep; |
252b5132 RH |
2043 | |
2044 | switch (how) | |
2045 | { | |
2046 | case bfd_print_symbol_name: | |
2047 | fprintf (file, "%s", symbol->name); | |
2048 | break; | |
2049 | ||
2050 | case bfd_print_symbol_more: | |
2051 | fprintf (file, "coff %s %s", | |
2052 | coffsymbol (symbol)->native ? "n" : "g", | |
2053 | coffsymbol (symbol)->lineno ? "l" : " "); | |
2054 | break; | |
2055 | ||
2056 | case bfd_print_symbol_all: | |
2057 | if (coffsymbol (symbol)->native) | |
2058 | { | |
beb1bf64 | 2059 | bfd_vma val; |
252b5132 RH |
2060 | unsigned int aux; |
2061 | combined_entry_type *combined = coffsymbol (symbol)->native; | |
2062 | combined_entry_type *root = obj_raw_syments (abfd); | |
2063 | struct lineno_cache_entry *l = coffsymbol (symbol)->lineno; | |
2064 | ||
2065 | fprintf (file, "[%3ld]", (long) (combined - root)); | |
2066 | ||
2067 | if (! combined->fix_value) | |
beb1bf64 | 2068 | val = (bfd_vma) combined->u.syment.n_value; |
252b5132 | 2069 | else |
d2df793a | 2070 | val = combined->u.syment.n_value - (bfd_hostptr_t) root; |
252b5132 | 2071 | |
7920ce38 | 2072 | fprintf (file, "(sec %2d)(fl 0x%02x)(ty %3x)(scl %3d) (nx %d) 0x", |
252b5132 RH |
2073 | combined->u.syment.n_scnum, |
2074 | combined->u.syment.n_flags, | |
2075 | combined->u.syment.n_type, | |
2076 | combined->u.syment.n_sclass, | |
745c12f8 | 2077 | combined->u.syment.n_numaux); |
ebf12fbe | 2078 | bfd_fprintf_vma (abfd, file, val); |
745c12f8 | 2079 | fprintf (file, " %s", symbol->name); |
252b5132 RH |
2080 | |
2081 | for (aux = 0; aux < combined->u.syment.n_numaux; aux++) | |
2082 | { | |
2083 | combined_entry_type *auxp = combined + aux + 1; | |
2084 | long tagndx; | |
2085 | ||
2086 | if (auxp->fix_tag) | |
2087 | tagndx = auxp->u.auxent.x_sym.x_tagndx.p - root; | |
2088 | else | |
2089 | tagndx = auxp->u.auxent.x_sym.x_tagndx.l; | |
2090 | ||
2091 | fprintf (file, "\n"); | |
2092 | ||
2093 | if (bfd_coff_print_aux (abfd, file, root, combined, auxp, aux)) | |
2094 | continue; | |
2095 | ||
2096 | switch (combined->u.syment.n_sclass) | |
2097 | { | |
2098 | case C_FILE: | |
2099 | fprintf (file, "File "); | |
2100 | break; | |
2101 | ||
2102 | case C_STAT: | |
2103 | if (combined->u.syment.n_type == T_NULL) | |
c8e7bf0d | 2104 | /* Probably a section symbol ? */ |
252b5132 RH |
2105 | { |
2106 | fprintf (file, "AUX scnlen 0x%lx nreloc %d nlnno %d", | |
0af1713e | 2107 | (unsigned long) auxp->u.auxent.x_scn.x_scnlen, |
252b5132 RH |
2108 | auxp->u.auxent.x_scn.x_nreloc, |
2109 | auxp->u.auxent.x_scn.x_nlinno); | |
2110 | if (auxp->u.auxent.x_scn.x_checksum != 0 | |
2111 | || auxp->u.auxent.x_scn.x_associated != 0 | |
2112 | || auxp->u.auxent.x_scn.x_comdat != 0) | |
2113 | fprintf (file, " checksum 0x%lx assoc %d comdat %d", | |
2114 | auxp->u.auxent.x_scn.x_checksum, | |
2115 | auxp->u.auxent.x_scn.x_associated, | |
2116 | auxp->u.auxent.x_scn.x_comdat); | |
2117 | break; | |
2118 | } | |
c8e7bf0d | 2119 | /* Otherwise fall through. */ |
312191a6 | 2120 | case C_EXT: |
8602d4fe | 2121 | case C_AIX_WEAKEXT: |
312191a6 ILT |
2122 | if (ISFCN (combined->u.syment.n_type)) |
2123 | { | |
cea4409c AM |
2124 | long next, llnos; |
2125 | ||
2126 | if (auxp->fix_end) | |
2127 | next = (auxp->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p | |
2128 | - root); | |
2129 | else | |
2130 | next = auxp->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l; | |
2131 | llnos = auxp->u.auxent.x_sym.x_fcnary.x_fcn.x_lnnoptr; | |
312191a6 | 2132 | fprintf (file, |
3d66c4f7 | 2133 | "AUX tagndx %ld ttlsiz 0x%lx lnnos %ld next %ld", |
0af1713e AM |
2134 | tagndx, |
2135 | (unsigned long) auxp->u.auxent.x_sym.x_misc.x_fsize, | |
cea4409c | 2136 | llnos, next); |
312191a6 ILT |
2137 | break; |
2138 | } | |
c8e7bf0d | 2139 | /* Otherwise fall through. */ |
252b5132 RH |
2140 | default: |
2141 | fprintf (file, "AUX lnno %d size 0x%x tagndx %ld", | |
2142 | auxp->u.auxent.x_sym.x_misc.x_lnsz.x_lnno, | |
2143 | auxp->u.auxent.x_sym.x_misc.x_lnsz.x_size, | |
2144 | tagndx); | |
2145 | if (auxp->fix_end) | |
2146 | fprintf (file, " endndx %ld", | |
2147 | ((long) | |
2148 | (auxp->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p | |
2149 | - root))); | |
2150 | break; | |
2151 | } | |
2152 | } | |
2153 | ||
2154 | if (l) | |
2155 | { | |
2156 | fprintf (file, "\n%s :", l->u.sym->name); | |
2157 | l++; | |
2158 | while (l->line_number) | |
2159 | { | |
745c12f8 | 2160 | fprintf (file, "\n%4d : ", l->line_number); |
ebf12fbe | 2161 | bfd_fprintf_vma (abfd, file, l->u.offset + symbol->section->vma); |
252b5132 RH |
2162 | l++; |
2163 | } | |
2164 | } | |
2165 | } | |
2166 | else | |
2167 | { | |
c8e7bf0d | 2168 | bfd_print_symbol_vandf (abfd, (void *) file, symbol); |
252b5132 RH |
2169 | fprintf (file, " %-5s %s %s %s", |
2170 | symbol->section->name, | |
2171 | coffsymbol (symbol)->native ? "n" : "g", | |
2172 | coffsymbol (symbol)->lineno ? "l" : " ", | |
2173 | symbol->name); | |
2174 | } | |
2175 | } | |
2176 | } | |
2177 | ||
2178 | /* Return whether a symbol name implies a local symbol. In COFF, | |
2179 | local symbols generally start with ``.L''. Most targets use this | |
2180 | function for the is_local_label_name entry point, but some may | |
2181 | override it. */ | |
2182 | ||
b34976b6 | 2183 | bfd_boolean |
c8e7bf0d NC |
2184 | _bfd_coff_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, |
2185 | const char *name) | |
252b5132 | 2186 | { |
b34976b6 | 2187 | return name[0] == '.' && name[1] == 'L'; |
252b5132 RH |
2188 | } |
2189 | ||
9a968f43 NC |
2190 | /* Provided a BFD, a section and an offset (in bytes, not octets) into the |
2191 | section, calculate and return the name of the source file and the line | |
2192 | nearest to the wanted location. */ | |
435b1e90 | 2193 | |
b34976b6 | 2194 | bfd_boolean |
fc28f9aa TG |
2195 | coff_find_nearest_line_with_names (bfd *abfd, |
2196 | const struct dwarf_debug_section *debug_sections, | |
2197 | asection *section, | |
2198 | asymbol **symbols, | |
2199 | bfd_vma offset, | |
2200 | const char **filename_ptr, | |
2201 | const char **functionname_ptr, | |
2202 | unsigned int *line_ptr) | |
252b5132 | 2203 | { |
b34976b6 | 2204 | bfd_boolean found; |
252b5132 RH |
2205 | unsigned int i; |
2206 | unsigned int line_base; | |
2207 | coff_data_type *cof = coff_data (abfd); | |
c8e7bf0d | 2208 | /* Run through the raw syments if available. */ |
252b5132 RH |
2209 | combined_entry_type *p; |
2210 | combined_entry_type *pend; | |
2211 | alent *l; | |
2212 | struct coff_section_tdata *sec_data; | |
dc810e39 | 2213 | bfd_size_type amt; |
252b5132 RH |
2214 | |
2215 | /* Before looking through the symbol table, try to use a .stab | |
2216 | section to find the information. */ | |
2217 | if (! _bfd_stab_section_find_nearest_line (abfd, symbols, section, offset, | |
2218 | &found, filename_ptr, | |
2219 | functionname_ptr, line_ptr, | |
51db3708 | 2220 | &coff_data(abfd)->line_info)) |
b34976b6 | 2221 | return FALSE; |
51db3708 | 2222 | |
4ca29a6a | 2223 | if (found) |
b34976b6 | 2224 | return TRUE; |
4ca29a6a | 2225 | |
51db3708 | 2226 | /* Also try examining DWARF2 debugging information. */ |
fc28f9aa TG |
2227 | if (_bfd_dwarf2_find_nearest_line (abfd, debug_sections, |
2228 | section, symbols, offset, | |
51db3708 | 2229 | filename_ptr, functionname_ptr, |
9b8d1a36 | 2230 | line_ptr, NULL, 0, |
51db3708 | 2231 | &coff_data(abfd)->dwarf2_find_line_info)) |
b34976b6 | 2232 | return TRUE; |
51db3708 | 2233 | |
252b5132 RH |
2234 | *filename_ptr = 0; |
2235 | *functionname_ptr = 0; | |
2236 | *line_ptr = 0; | |
2237 | ||
c8e7bf0d | 2238 | /* Don't try and find line numbers in a non coff file. */ |
9bd09e22 | 2239 | if (!bfd_family_coff (abfd)) |
b34976b6 | 2240 | return FALSE; |
252b5132 RH |
2241 | |
2242 | if (cof == NULL) | |
b34976b6 | 2243 | return FALSE; |
252b5132 RH |
2244 | |
2245 | /* Find the first C_FILE symbol. */ | |
2246 | p = cof->raw_syments; | |
2247 | if (!p) | |
b34976b6 | 2248 | return FALSE; |
252b5132 RH |
2249 | |
2250 | pend = p + cof->raw_syment_count; | |
2251 | while (p < pend) | |
2252 | { | |
2253 | if (p->u.syment.n_sclass == C_FILE) | |
2254 | break; | |
2255 | p += 1 + p->u.syment.n_numaux; | |
2256 | } | |
2257 | ||
2258 | if (p < pend) | |
2259 | { | |
2260 | bfd_vma sec_vma; | |
2261 | bfd_vma maxdiff; | |
2262 | ||
2263 | /* Look through the C_FILE symbols to find the best one. */ | |
2264 | sec_vma = bfd_get_section_vma (abfd, section); | |
2265 | *filename_ptr = (char *) p->u.syment._n._n_n._n_offset; | |
2266 | maxdiff = (bfd_vma) 0 - (bfd_vma) 1; | |
2267 | while (1) | |
2268 | { | |
4d9e2b27 | 2269 | bfd_vma file_addr; |
252b5132 RH |
2270 | combined_entry_type *p2; |
2271 | ||
2272 | for (p2 = p + 1 + p->u.syment.n_numaux; | |
2273 | p2 < pend; | |
2274 | p2 += 1 + p2->u.syment.n_numaux) | |
2275 | { | |
2276 | if (p2->u.syment.n_scnum > 0 | |
2277 | && (section | |
2278 | == coff_section_from_bfd_index (abfd, | |
2279 | p2->u.syment.n_scnum))) | |
2280 | break; | |
2281 | if (p2->u.syment.n_sclass == C_FILE) | |
2282 | { | |
2283 | p2 = pend; | |
2284 | break; | |
2285 | } | |
2286 | } | |
2287 | ||
4d9e2b27 NC |
2288 | file_addr = (bfd_vma) p2->u.syment.n_value; |
2289 | /* PR 11512: Include the section address of the function name symbol. */ | |
2290 | if (p2->u.syment.n_scnum > 0) | |
2291 | file_addr += coff_section_from_bfd_index (abfd, | |
2292 | p2->u.syment.n_scnum)->vma; | |
798c1fb8 ILT |
2293 | /* We use <= MAXDIFF here so that if we get a zero length |
2294 | file, we actually use the next file entry. */ | |
252b5132 | 2295 | if (p2 < pend |
4d9e2b27 NC |
2296 | && offset + sec_vma >= file_addr |
2297 | && offset + sec_vma - file_addr <= maxdiff) | |
252b5132 RH |
2298 | { |
2299 | *filename_ptr = (char *) p->u.syment._n._n_n._n_offset; | |
2300 | maxdiff = offset + sec_vma - p2->u.syment.n_value; | |
2301 | } | |
2302 | ||
2303 | /* Avoid endless loops on erroneous files by ensuring that | |
2304 | we always move forward in the file. */ | |
cea4409c | 2305 | if (p >= cof->raw_syments + p->u.syment.n_value) |
252b5132 RH |
2306 | break; |
2307 | ||
2308 | p = cof->raw_syments + p->u.syment.n_value; | |
2309 | if (p > pend || p->u.syment.n_sclass != C_FILE) | |
2310 | break; | |
2311 | } | |
2312 | } | |
2313 | ||
c8e7bf0d | 2314 | /* Now wander though the raw linenumbers of the section. */ |
70df0c05 | 2315 | /* If we have been called on this section before, and the offset we |
252b5132 RH |
2316 | want is further down then we can prime the lookup loop. */ |
2317 | sec_data = coff_section_data (abfd, section); | |
2318 | if (sec_data != NULL | |
2319 | && sec_data->i > 0 | |
2320 | && offset >= sec_data->offset) | |
2321 | { | |
2322 | i = sec_data->i; | |
2323 | *functionname_ptr = sec_data->function; | |
2324 | line_base = sec_data->line_base; | |
2325 | } | |
2326 | else | |
2327 | { | |
2328 | i = 0; | |
2329 | line_base = 0; | |
2330 | } | |
2331 | ||
2332 | if (section->lineno != NULL) | |
2333 | { | |
798c1fb8 ILT |
2334 | bfd_vma last_value = 0; |
2335 | ||
252b5132 RH |
2336 | l = §ion->lineno[i]; |
2337 | ||
2338 | for (; i < section->lineno_count; i++) | |
2339 | { | |
2340 | if (l->line_number == 0) | |
2341 | { | |
c8e7bf0d | 2342 | /* Get the symbol this line number points at. */ |
252b5132 RH |
2343 | coff_symbol_type *coff = (coff_symbol_type *) (l->u.sym); |
2344 | if (coff->symbol.value > offset) | |
2345 | break; | |
2346 | *functionname_ptr = coff->symbol.name; | |
798c1fb8 | 2347 | last_value = coff->symbol.value; |
252b5132 RH |
2348 | if (coff->native) |
2349 | { | |
2350 | combined_entry_type *s = coff->native; | |
2351 | s = s + 1 + s->u.syment.n_numaux; | |
2352 | ||
2353 | /* In XCOFF a debugging symbol can follow the | |
2354 | function symbol. */ | |
2355 | if (s->u.syment.n_scnum == N_DEBUG) | |
2356 | s = s + 1 + s->u.syment.n_numaux; | |
2357 | ||
2358 | /* S should now point to the .bf of the function. */ | |
2359 | if (s->u.syment.n_numaux) | |
2360 | { | |
2361 | /* The linenumber is stored in the auxent. */ | |
2362 | union internal_auxent *a = &((s + 1)->u.auxent); | |
2363 | line_base = a->x_sym.x_misc.x_lnsz.x_lnno; | |
2364 | *line_ptr = line_base; | |
2365 | } | |
2366 | } | |
2367 | } | |
2368 | else | |
2369 | { | |
2370 | if (l->u.offset > offset) | |
2371 | break; | |
2372 | *line_ptr = l->line_number + line_base - 1; | |
2373 | } | |
2374 | l++; | |
2375 | } | |
798c1fb8 ILT |
2376 | |
2377 | /* If we fell off the end of the loop, then assume that this | |
2378 | symbol has no line number info. Otherwise, symbols with no | |
2379 | line number info get reported with the line number of the | |
2380 | last line of the last symbol which does have line number | |
2381 | info. We use 0x100 as a slop to account for cases where the | |
2382 | last line has executable code. */ | |
2383 | if (i >= section->lineno_count | |
2384 | && last_value != 0 | |
2385 | && offset - last_value > 0x100) | |
2386 | { | |
2387 | *functionname_ptr = NULL; | |
2388 | *line_ptr = 0; | |
2389 | } | |
252b5132 RH |
2390 | } |
2391 | ||
2392 | /* Cache the results for the next call. */ | |
2393 | if (sec_data == NULL && section->owner == abfd) | |
2394 | { | |
dc810e39 | 2395 | amt = sizeof (struct coff_section_tdata); |
c8e7bf0d | 2396 | section->used_by_bfd = bfd_zalloc (abfd, amt); |
252b5132 RH |
2397 | sec_data = (struct coff_section_tdata *) section->used_by_bfd; |
2398 | } | |
2399 | if (sec_data != NULL) | |
2400 | { | |
2401 | sec_data->offset = offset; | |
70df0c05 | 2402 | sec_data->i = i - 1; |
252b5132 RH |
2403 | sec_data->function = *functionname_ptr; |
2404 | sec_data->line_base = line_base; | |
2405 | } | |
2406 | ||
b34976b6 | 2407 | return TRUE; |
252b5132 RH |
2408 | } |
2409 | ||
fc28f9aa TG |
2410 | bfd_boolean |
2411 | coff_find_nearest_line (bfd *abfd, | |
2412 | asection *section, | |
2413 | asymbol **symbols, | |
2414 | bfd_vma offset, | |
2415 | const char **filename_ptr, | |
2416 | const char **functionname_ptr, | |
2417 | unsigned int *line_ptr) | |
2418 | { | |
2419 | return coff_find_nearest_line_with_names (abfd, dwarf_debug_sections, | |
2420 | section, symbols, offset, | |
2421 | filename_ptr, functionname_ptr, | |
2422 | line_ptr); | |
2423 | } | |
2424 | ||
a29a8af8 KT |
2425 | bfd_boolean |
2426 | coff_find_nearest_line_discriminator (bfd *abfd, | |
2427 | asection *section, | |
2428 | asymbol **symbols, | |
2429 | bfd_vma offset, | |
2430 | const char **filename_ptr, | |
2431 | const char **functionname_ptr, | |
2432 | unsigned int *line_ptr, | |
2433 | unsigned int *discriminator) | |
2434 | { | |
2435 | *discriminator = 0; | |
2436 | return coff_find_nearest_line_with_names (abfd, dwarf_debug_sections, | |
2437 | section, symbols, offset, | |
2438 | filename_ptr, functionname_ptr, | |
2439 | line_ptr); | |
2440 | } | |
2441 | ||
2442 | ||
4ab527b0 FF |
2443 | bfd_boolean |
2444 | coff_find_inliner_info (bfd *abfd, | |
2445 | const char **filename_ptr, | |
2446 | const char **functionname_ptr, | |
2447 | unsigned int *line_ptr) | |
2448 | { | |
2449 | bfd_boolean found; | |
2450 | ||
2451 | found = _bfd_dwarf2_find_inliner_info (abfd, filename_ptr, | |
2452 | functionname_ptr, line_ptr, | |
2453 | &coff_data(abfd)->dwarf2_find_line_info); | |
2454 | return (found); | |
2455 | } | |
2456 | ||
252b5132 | 2457 | int |
a6b96beb | 2458 | coff_sizeof_headers (bfd *abfd, struct bfd_link_info *info) |
252b5132 RH |
2459 | { |
2460 | size_t size; | |
2461 | ||
a6b96beb | 2462 | if (!info->relocatable) |
c8e7bf0d | 2463 | size = bfd_coff_filhsz (abfd) + bfd_coff_aoutsz (abfd); |
252b5132 | 2464 | else |
c8e7bf0d | 2465 | size = bfd_coff_filhsz (abfd); |
252b5132 RH |
2466 | |
2467 | size += abfd->section_count * bfd_coff_scnhsz (abfd); | |
2468 | return size; | |
2469 | } | |
2470 | ||
2471 | /* Change the class of a coff symbol held by BFD. */ | |
c8e7bf0d | 2472 | |
b34976b6 | 2473 | bfd_boolean |
c8e7bf0d NC |
2474 | bfd_coff_set_symbol_class (bfd * abfd, |
2475 | asymbol * symbol, | |
96d56e9f | 2476 | unsigned int symbol_class) |
252b5132 RH |
2477 | { |
2478 | coff_symbol_type * csym; | |
2479 | ||
2480 | csym = coff_symbol_from (abfd, symbol); | |
2481 | if (csym == NULL) | |
2482 | { | |
2483 | bfd_set_error (bfd_error_invalid_operation); | |
b34976b6 | 2484 | return FALSE; |
252b5132 RH |
2485 | } |
2486 | else if (csym->native == NULL) | |
2487 | { | |
2488 | /* This is an alien symbol which no native coff backend data. | |
2489 | We cheat here by creating a fake native entry for it and | |
2490 | then filling in the class. This code is based on that in | |
2491 | coff_write_alien_symbol(). */ | |
244148ad | 2492 | |
252b5132 | 2493 | combined_entry_type * native; |
dc810e39 | 2494 | bfd_size_type amt = sizeof (* native); |
252b5132 | 2495 | |
a50b1753 | 2496 | native = (combined_entry_type *) bfd_zalloc (abfd, amt); |
252b5132 | 2497 | if (native == NULL) |
b34976b6 | 2498 | return FALSE; |
252b5132 | 2499 | |
252b5132 | 2500 | native->u.syment.n_type = T_NULL; |
96d56e9f | 2501 | native->u.syment.n_sclass = symbol_class; |
244148ad | 2502 | |
252b5132 RH |
2503 | if (bfd_is_und_section (symbol->section)) |
2504 | { | |
2505 | native->u.syment.n_scnum = N_UNDEF; | |
2506 | native->u.syment.n_value = symbol->value; | |
2507 | } | |
2508 | else if (bfd_is_com_section (symbol->section)) | |
2509 | { | |
2510 | native->u.syment.n_scnum = N_UNDEF; | |
2511 | native->u.syment.n_value = symbol->value; | |
2512 | } | |
2513 | else | |
2514 | { | |
2515 | native->u.syment.n_scnum = | |
2516 | symbol->section->output_section->target_index; | |
2517 | native->u.syment.n_value = (symbol->value | |
2518 | + symbol->section->output_offset); | |
2519 | if (! obj_pe (abfd)) | |
2520 | native->u.syment.n_value += symbol->section->output_section->vma; | |
244148ad | 2521 | |
08da05b0 | 2522 | /* Copy the any flags from the file header into the symbol. |
252b5132 RH |
2523 | FIXME: Why? */ |
2524 | native->u.syment.n_flags = bfd_asymbol_bfd (& csym->symbol)->flags; | |
2525 | } | |
244148ad | 2526 | |
252b5132 RH |
2527 | csym->native = native; |
2528 | } | |
2529 | else | |
96d56e9f | 2530 | csym->native->u.syment.n_sclass = symbol_class; |
244148ad | 2531 | |
b34976b6 | 2532 | return TRUE; |
252b5132 | 2533 | } |
082b7297 L |
2534 | |
2535 | struct coff_comdat_info * | |
2536 | bfd_coff_get_comdat_section (bfd *abfd, struct bfd_section *sec) | |
2537 | { | |
fedf8d51 AM |
2538 | if (bfd_get_flavour (abfd) == bfd_target_coff_flavour |
2539 | && coff_section_data (abfd, sec) != NULL) | |
082b7297 L |
2540 | return coff_section_data (abfd, sec)->comdat; |
2541 | else | |
2542 | return NULL; | |
2543 | } | |
c77ec726 AM |
2544 | |
2545 | bfd_boolean | |
2546 | _bfd_coff_section_already_linked (bfd *abfd, | |
2547 | asection *sec, | |
2548 | struct bfd_link_info *info) | |
2549 | { | |
2550 | flagword flags; | |
2551 | const char *name, *key; | |
2552 | struct bfd_section_already_linked *l; | |
2553 | struct bfd_section_already_linked_hash_entry *already_linked_list; | |
2554 | struct coff_comdat_info *s_comdat; | |
2555 | ||
2556 | flags = sec->flags; | |
2557 | if ((flags & SEC_LINK_ONCE) == 0) | |
2558 | return FALSE; | |
2559 | ||
2560 | /* The COFF backend linker doesn't support group sections. */ | |
2561 | if ((flags & SEC_GROUP) != 0) | |
2562 | return FALSE; | |
2563 | ||
2564 | name = bfd_get_section_name (abfd, sec); | |
2565 | s_comdat = bfd_coff_get_comdat_section (abfd, sec); | |
2566 | ||
2567 | if (s_comdat != NULL) | |
2568 | key = s_comdat->name; | |
2569 | else | |
2570 | { | |
2571 | if (CONST_STRNEQ (name, ".gnu.linkonce.") | |
2572 | && (key = strchr (name + sizeof (".gnu.linkonce.") - 1, '.')) != NULL) | |
2573 | key++; | |
2574 | else | |
2575 | /* FIXME: gcc as of 2011-09 emits sections like .text$<key>, | |
2576 | .xdata$<key> and .pdata$<key> only the first of which has a | |
2577 | comdat key. Should these all match the LTO IR key? */ | |
2578 | key = name; | |
2579 | } | |
2580 | ||
2581 | already_linked_list = bfd_section_already_linked_table_lookup (key); | |
2582 | ||
2583 | for (l = already_linked_list->entry; l != NULL; l = l->next) | |
2584 | { | |
2585 | struct coff_comdat_info *l_comdat; | |
2586 | ||
2587 | l_comdat = bfd_coff_get_comdat_section (l->sec->owner, l->sec); | |
2588 | ||
2589 | /* The section names must match, and both sections must be | |
2590 | comdat and have the same comdat name, or both sections must | |
2591 | be non-comdat. LTO IR plugin sections are an exception. They | |
2592 | are always named .gnu.linkonce.t.<key> (<key> is some string) | |
2593 | and match any comdat section with comdat name of <key>, and | |
2594 | any linkonce section with the same suffix, ie. | |
2595 | .gnu.linkonce.*.<key>. */ | |
2596 | if (((s_comdat != NULL) == (l_comdat != NULL) | |
2597 | && strcmp (name, l->sec->name) == 0) | |
2598 | || (l->sec->owner->flags & BFD_PLUGIN) != 0) | |
2599 | { | |
2600 | /* The section has already been linked. See if we should | |
2601 | issue a warning. */ | |
2602 | return _bfd_handle_already_linked (sec, l, info); | |
2603 | } | |
2604 | } | |
2605 | ||
2606 | /* This is the first section with this name. Record it. */ | |
2607 | if (!bfd_section_already_linked_table_insert (already_linked_list, sec)) | |
2608 | info->callbacks->einfo (_("%F%P: already_linked_table: %E\n")); | |
2609 | return FALSE; | |
2610 | } |