Commit | Line | Data |
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c906108c | 1 | /* GDB routines for manipulating objfiles. |
af5f3db6 | 2 | |
e2882c85 | 3 | Copyright (C) 1992-2018 Free Software Foundation, Inc. |
af5f3db6 | 4 | |
c906108c SS |
5 | Contributed by Cygnus Support, using pieces from other GDB modules. |
6 | ||
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
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 | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
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. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | /* This file contains support routines for creating, manipulating, and | |
0df8b418 | 23 | destroying objfile structures. */ |
c906108c SS |
24 | |
25 | #include "defs.h" | |
26 | #include "bfd.h" /* Binary File Description */ | |
27 | #include "symtab.h" | |
28 | #include "symfile.h" | |
29 | #include "objfiles.h" | |
30 | #include "gdb-stabs.h" | |
31 | #include "target.h" | |
af5f3db6 | 32 | #include "bcache.h" |
9bdcbae7 DJ |
33 | #include "expression.h" |
34 | #include "parser-defs.h" | |
35 | ||
c906108c | 36 | #include <sys/types.h> |
53ce3c39 | 37 | #include <sys/stat.h> |
c906108c | 38 | #include <fcntl.h> |
04ea0df1 | 39 | #include "gdb_obstack.h" |
2de7ced7 | 40 | #include "hashtab.h" |
c906108c | 41 | |
7a292a7a | 42 | #include "breakpoint.h" |
fe898f56 | 43 | #include "block.h" |
de4f826b | 44 | #include "dictionary.h" |
cb5d864f | 45 | #include "source.h" |
801e3a5b | 46 | #include "addrmap.h" |
5e2b427d | 47 | #include "arch-utils.h" |
30510692 | 48 | #include "exec.h" |
76727919 | 49 | #include "observable.h" |
6fbf07cd | 50 | #include "complaints.h" |
ccefe4c4 | 51 | #include "psymtab.h" |
0133421a | 52 | #include "solist.h" |
cbb099e8 | 53 | #include "gdb_bfd.h" |
afedecd3 | 54 | #include "btrace.h" |
b4987c95 | 55 | #include "common/pathstuff.h" |
7a292a7a | 56 | |
cfe826d4 TT |
57 | #include <vector> |
58 | ||
8e260fc0 TT |
59 | /* Keep a registry of per-objfile data-pointers required by other GDB |
60 | modules. */ | |
c906108c | 61 | |
6b81941e | 62 | DEFINE_REGISTRY (objfile, REGISTRY_ACCESS_FIELD) |
0d0e1a63 | 63 | |
c906108c | 64 | /* Externally visible variables that are owned by this module. |
0df8b418 | 65 | See declarations in objfile.h for more info. */ |
c906108c | 66 | |
6c95b8df PA |
67 | struct objfile_pspace_info |
68 | { | |
6c95b8df PA |
69 | struct obj_section **sections; |
70 | int num_sections; | |
607ece04 GB |
71 | |
72 | /* Nonzero if object files have been added since the section map | |
73 | was last updated. */ | |
74 | int new_objfiles_available; | |
75 | ||
76 | /* Nonzero if the section map MUST be updated before use. */ | |
77 | int section_map_dirty; | |
78 | ||
79 | /* Nonzero if section map updates should be inhibited if possible. */ | |
80 | int inhibit_updates; | |
6c95b8df PA |
81 | }; |
82 | ||
83 | /* Per-program-space data key. */ | |
84 | static const struct program_space_data *objfiles_pspace_data; | |
85 | ||
86 | static void | |
87 | objfiles_pspace_data_cleanup (struct program_space *pspace, void *arg) | |
88 | { | |
19ba03f4 | 89 | struct objfile_pspace_info *info = (struct objfile_pspace_info *) arg; |
6c95b8df | 90 | |
487ad57c YQ |
91 | xfree (info->sections); |
92 | xfree (info); | |
6c95b8df PA |
93 | } |
94 | ||
95 | /* Get the current svr4 data. If none is found yet, add it now. This | |
96 | function always returns a valid object. */ | |
97 | ||
98 | static struct objfile_pspace_info * | |
99 | get_objfile_pspace_data (struct program_space *pspace) | |
100 | { | |
101 | struct objfile_pspace_info *info; | |
102 | ||
19ba03f4 SM |
103 | info = ((struct objfile_pspace_info *) |
104 | program_space_data (pspace, objfiles_pspace_data)); | |
6c95b8df PA |
105 | if (info == NULL) |
106 | { | |
41bf6aca | 107 | info = XCNEW (struct objfile_pspace_info); |
6c95b8df PA |
108 | set_program_space_data (pspace, objfiles_pspace_data, info); |
109 | } | |
110 | ||
111 | return info; | |
112 | } | |
113 | ||
706e3705 TT |
114 | \f |
115 | ||
116 | /* Per-BFD data key. */ | |
117 | ||
118 | static const struct bfd_data *objfiles_bfd_data; | |
119 | ||
120 | /* Create the per-BFD storage object for OBJFILE. If ABFD is not | |
121 | NULL, and it already has a per-BFD storage object, use that. | |
122 | Otherwise, allocate a new per-BFD storage object. If ABFD is not | |
123 | NULL, the object is allocated on the BFD; otherwise it is allocated | |
124 | on OBJFILE's obstack. Note that it is not safe to call this | |
125 | multiple times for a given OBJFILE -- it can only be called when | |
126 | allocating or re-initializing OBJFILE. */ | |
127 | ||
128 | static struct objfile_per_bfd_storage * | |
129 | get_objfile_bfd_data (struct objfile *objfile, struct bfd *abfd) | |
130 | { | |
131 | struct objfile_per_bfd_storage *storage = NULL; | |
132 | ||
133 | if (abfd != NULL) | |
19ba03f4 SM |
134 | storage = ((struct objfile_per_bfd_storage *) |
135 | bfd_data (abfd, objfiles_bfd_data)); | |
706e3705 TT |
136 | |
137 | if (storage == NULL) | |
138 | { | |
1da77581 TT |
139 | /* If the object requires gdb to do relocations, we simply fall |
140 | back to not sharing data across users. These cases are rare | |
141 | enough that this seems reasonable. */ | |
142 | if (abfd != NULL && !gdb_bfd_requires_relocations (abfd)) | |
706e3705 | 143 | { |
224c3ddb SM |
144 | storage |
145 | = ((struct objfile_per_bfd_storage *) | |
23732b1e | 146 | bfd_alloc (abfd, sizeof (struct objfile_per_bfd_storage))); |
184cde75 SM |
147 | /* objfile_per_bfd_storage is not trivially constructible, must |
148 | call the ctor manually. */ | |
149 | storage = new (storage) objfile_per_bfd_storage (); | |
706e3705 TT |
150 | set_bfd_data (abfd, objfiles_bfd_data, storage); |
151 | } | |
152 | else | |
184cde75 SM |
153 | storage |
154 | = obstack_new<objfile_per_bfd_storage> (&objfile->objfile_obstack); | |
706e3705 | 155 | |
1da77581 TT |
156 | /* Look up the gdbarch associated with the BFD. */ |
157 | if (abfd != NULL) | |
158 | storage->gdbarch = gdbarch_from_bfd (abfd); | |
159 | ||
706e3705 | 160 | storage->filename_cache = bcache_xmalloc (NULL, NULL); |
6532ff36 | 161 | storage->macro_cache = bcache_xmalloc (NULL, NULL); |
3d548a53 | 162 | storage->language_of_main = language_unknown; |
706e3705 TT |
163 | } |
164 | ||
165 | return storage; | |
166 | } | |
167 | ||
168 | /* Free STORAGE. */ | |
169 | ||
170 | static void | |
171 | free_objfile_per_bfd_storage (struct objfile_per_bfd_storage *storage) | |
172 | { | |
173 | bcache_xfree (storage->filename_cache); | |
6532ff36 | 174 | bcache_xfree (storage->macro_cache); |
84a1243b TT |
175 | if (storage->demangled_names_hash) |
176 | htab_delete (storage->demangled_names_hash); | |
23732b1e | 177 | storage->~objfile_per_bfd_storage (); |
706e3705 TT |
178 | } |
179 | ||
180 | /* A wrapper for free_objfile_per_bfd_storage that can be passed as a | |
181 | cleanup function to the BFD registry. */ | |
182 | ||
183 | static void | |
184 | objfile_bfd_data_free (struct bfd *unused, void *d) | |
185 | { | |
19ba03f4 | 186 | free_objfile_per_bfd_storage ((struct objfile_per_bfd_storage *) d); |
706e3705 TT |
187 | } |
188 | ||
189 | /* See objfiles.h. */ | |
190 | ||
191 | void | |
192 | set_objfile_per_bfd (struct objfile *objfile) | |
193 | { | |
194 | objfile->per_bfd = get_objfile_bfd_data (objfile, objfile->obfd); | |
195 | } | |
196 | ||
3d548a53 TT |
197 | /* Set the objfile's per-BFD notion of the "main" name and |
198 | language. */ | |
199 | ||
200 | void | |
201 | set_objfile_main_name (struct objfile *objfile, | |
202 | const char *name, enum language lang) | |
203 | { | |
204 | if (objfile->per_bfd->name_of_main == NULL | |
205 | || strcmp (objfile->per_bfd->name_of_main, name) != 0) | |
206 | objfile->per_bfd->name_of_main | |
224c3ddb SM |
207 | = (const char *) obstack_copy0 (&objfile->per_bfd->storage_obstack, name, |
208 | strlen (name)); | |
3d548a53 TT |
209 | objfile->per_bfd->language_of_main = lang; |
210 | } | |
211 | ||
63e43d3a PMR |
212 | /* Helper structure to map blocks to static link properties in hash tables. */ |
213 | ||
214 | struct static_link_htab_entry | |
215 | { | |
216 | const struct block *block; | |
217 | const struct dynamic_prop *static_link; | |
218 | }; | |
219 | ||
220 | /* Return a hash code for struct static_link_htab_entry *P. */ | |
221 | ||
222 | static hashval_t | |
223 | static_link_htab_entry_hash (const void *p) | |
224 | { | |
225 | const struct static_link_htab_entry *e | |
226 | = (const struct static_link_htab_entry *) p; | |
227 | ||
228 | return htab_hash_pointer (e->block); | |
229 | } | |
230 | ||
231 | /* Return whether P1 an P2 (pointers to struct static_link_htab_entry) are | |
232 | mappings for the same block. */ | |
233 | ||
234 | static int | |
235 | static_link_htab_entry_eq (const void *p1, const void *p2) | |
236 | { | |
237 | const struct static_link_htab_entry *e1 | |
238 | = (const struct static_link_htab_entry *) p1; | |
239 | const struct static_link_htab_entry *e2 | |
240 | = (const struct static_link_htab_entry *) p2; | |
241 | ||
242 | return e1->block == e2->block; | |
243 | } | |
244 | ||
245 | /* Register STATIC_LINK as the static link for BLOCK, which is part of OBJFILE. | |
246 | Must not be called more than once for each BLOCK. */ | |
247 | ||
248 | void | |
249 | objfile_register_static_link (struct objfile *objfile, | |
250 | const struct block *block, | |
251 | const struct dynamic_prop *static_link) | |
252 | { | |
253 | void **slot; | |
254 | struct static_link_htab_entry lookup_entry; | |
255 | struct static_link_htab_entry *entry; | |
256 | ||
257 | if (objfile->static_links == NULL) | |
258 | objfile->static_links = htab_create_alloc | |
259 | (1, &static_link_htab_entry_hash, static_link_htab_entry_eq, NULL, | |
260 | xcalloc, xfree); | |
261 | ||
262 | /* Create a slot for the mapping, make sure it's the first mapping for this | |
263 | block and then create the mapping itself. */ | |
264 | lookup_entry.block = block; | |
265 | slot = htab_find_slot (objfile->static_links, &lookup_entry, INSERT); | |
266 | gdb_assert (*slot == NULL); | |
267 | ||
e39db4db | 268 | entry = XOBNEW (&objfile->objfile_obstack, static_link_htab_entry); |
63e43d3a PMR |
269 | entry->block = block; |
270 | entry->static_link = static_link; | |
271 | *slot = (void *) entry; | |
272 | } | |
273 | ||
274 | /* Look for a static link for BLOCK, which is part of OBJFILE. Return NULL if | |
275 | none was found. */ | |
276 | ||
277 | const struct dynamic_prop * | |
278 | objfile_lookup_static_link (struct objfile *objfile, | |
279 | const struct block *block) | |
280 | { | |
281 | struct static_link_htab_entry *entry; | |
282 | struct static_link_htab_entry lookup_entry; | |
283 | ||
284 | if (objfile->static_links == NULL) | |
285 | return NULL; | |
286 | lookup_entry.block = block; | |
287 | entry | |
288 | = (struct static_link_htab_entry *) htab_find (objfile->static_links, | |
289 | &lookup_entry); | |
290 | if (entry == NULL) | |
291 | return NULL; | |
292 | ||
293 | gdb_assert (entry->block == block); | |
294 | return entry->static_link; | |
295 | } | |
296 | ||
706e3705 TT |
297 | \f |
298 | ||
96baa820 JM |
299 | /* Called via bfd_map_over_sections to build up the section table that |
300 | the objfile references. The objfile contains pointers to the start | |
301 | of the table (objfile->sections) and to the first location after | |
0df8b418 | 302 | the end of the table (objfile->sections_end). */ |
96baa820 | 303 | |
65cf3563 TT |
304 | static void |
305 | add_to_objfile_sections_full (struct bfd *abfd, struct bfd_section *asect, | |
306 | struct objfile *objfile, int force) | |
307 | { | |
308 | struct obj_section *section; | |
309 | ||
310 | if (!force) | |
311 | { | |
312 | flagword aflag; | |
313 | ||
314 | aflag = bfd_get_section_flags (abfd, asect); | |
315 | if (!(aflag & SEC_ALLOC)) | |
316 | return; | |
317 | } | |
318 | ||
319 | section = &objfile->sections[gdb_bfd_section_index (abfd, asect)]; | |
320 | section->objfile = objfile; | |
321 | section->the_bfd_section = asect; | |
322 | section->ovly_mapped = 0; | |
323 | } | |
324 | ||
c906108c | 325 | static void |
7be0c536 | 326 | add_to_objfile_sections (struct bfd *abfd, struct bfd_section *asect, |
d82ea6a8 | 327 | void *objfilep) |
c906108c | 328 | { |
19ba03f4 | 329 | add_to_objfile_sections_full (abfd, asect, (struct objfile *) objfilep, 0); |
c906108c SS |
330 | } |
331 | ||
332 | /* Builds a section table for OBJFILE. | |
96baa820 | 333 | |
65cf3563 TT |
334 | Note that the OFFSET and OVLY_MAPPED in each table entry are |
335 | initialized to zero. */ | |
c906108c | 336 | |
d82ea6a8 | 337 | void |
fba45db2 | 338 | build_objfile_section_table (struct objfile *objfile) |
c906108c | 339 | { |
65cf3563 TT |
340 | int count = gdb_bfd_count_sections (objfile->obfd); |
341 | ||
342 | objfile->sections = OBSTACK_CALLOC (&objfile->objfile_obstack, | |
343 | count, | |
344 | struct obj_section); | |
345 | objfile->sections_end = (objfile->sections + count); | |
f1f6aadf PA |
346 | bfd_map_over_sections (objfile->obfd, |
347 | add_to_objfile_sections, (void *) objfile); | |
65cf3563 TT |
348 | |
349 | /* See gdb_bfd_section_index. */ | |
350 | add_to_objfile_sections_full (objfile->obfd, bfd_com_section_ptr, objfile, 1); | |
351 | add_to_objfile_sections_full (objfile->obfd, bfd_und_section_ptr, objfile, 1); | |
352 | add_to_objfile_sections_full (objfile->obfd, bfd_abs_section_ptr, objfile, 1); | |
353 | add_to_objfile_sections_full (objfile->obfd, bfd_ind_section_ptr, objfile, 1); | |
c906108c SS |
354 | } |
355 | ||
9e86da07 TT |
356 | /* Given a pointer to an initialized bfd (ABFD) and some flag bits, |
357 | initialize the new objfile as best we can and link it into the list | |
358 | of all known objfiles. | |
c906108c | 359 | |
24ba069a JK |
360 | NAME should contain original non-canonicalized filename or other |
361 | identifier as entered by user. If there is no better source use | |
362 | bfd_get_filename (ABFD). NAME may be NULL only if ABFD is NULL. | |
363 | NAME content is copied into returned objfile. | |
364 | ||
2df3850c | 365 | The FLAGS word contains various bits (OBJF_*) that can be taken as |
78a4a9b9 | 366 | requests for specific operations. Other bits like OBJF_SHARED are |
0df8b418 | 367 | simply copied through to the new objfile flags member. */ |
c906108c | 368 | |
9e86da07 TT |
369 | objfile::objfile (bfd *abfd, const char *name, objfile_flags flags_) |
370 | : flags (flags_), | |
371 | pspace (current_program_space), | |
372 | obfd (abfd), | |
373 | psymbol_cache (psymbol_bcache_init ()) | |
c906108c | 374 | { |
14278e1f | 375 | const char *expanded_name; |
c906108c | 376 | |
2f6e5d7e TG |
377 | /* We could use obstack_specify_allocation here instead, but |
378 | gdb_obstack.h specifies the alloc/dealloc functions. */ | |
9e86da07 | 379 | obstack_init (&objfile_obstack); |
c906108c | 380 | |
9e86da07 | 381 | objfile_alloc_data (this); |
0d0e1a63 | 382 | |
e3e41d58 | 383 | gdb::unique_xmalloc_ptr<char> name_holder; |
24ba069a JK |
384 | if (name == NULL) |
385 | { | |
386 | gdb_assert (abfd == NULL); | |
40135bb1 | 387 | gdb_assert ((flags & OBJF_NOT_FILENAME) != 0); |
e3e41d58 | 388 | expanded_name = "<<anonymous objfile>>"; |
24ba069a | 389 | } |
5fbae7d1 GB |
390 | else if ((flags & OBJF_NOT_FILENAME) != 0 |
391 | || is_target_filename (name)) | |
e3e41d58 | 392 | expanded_name = name; |
04affae3 | 393 | else |
e3e41d58 TT |
394 | { |
395 | name_holder = gdb_abspath (name); | |
396 | expanded_name = name_holder.get (); | |
397 | } | |
9e86da07 TT |
398 | original_name |
399 | = (char *) obstack_copy0 (&objfile_obstack, | |
224c3ddb SM |
400 | expanded_name, |
401 | strlen (expanded_name)); | |
04affae3 | 402 | |
d3e81981 DE |
403 | /* Update the per-objfile information that comes from the bfd, ensuring |
404 | that any data that is reference is saved in the per-objfile data | |
405 | region. */ | |
406 | ||
8ac244b4 | 407 | gdb_bfd_ref (abfd); |
c906108c SS |
408 | if (abfd != NULL) |
409 | { | |
9e86da07 | 410 | mtime = bfd_get_mtime (abfd); |
c906108c SS |
411 | |
412 | /* Build section table. */ | |
9e86da07 | 413 | build_objfile_section_table (this); |
c906108c SS |
414 | } |
415 | ||
9e86da07 | 416 | per_bfd = get_objfile_bfd_data (this, abfd); |
34643a32 | 417 | |
9e86da07 | 418 | terminate_minimal_symbol_table (this); |
5c4e30ca | 419 | |
0df8b418 | 420 | /* Add this file onto the tail of the linked list of other such files. */ |
c906108c | 421 | |
c906108c | 422 | if (object_files == NULL) |
9e86da07 | 423 | object_files = this; |
c906108c SS |
424 | else |
425 | { | |
2f6e5d7e TG |
426 | struct objfile *last_one; |
427 | ||
c906108c | 428 | for (last_one = object_files; |
c5aa993b JM |
429 | last_one->next; |
430 | last_one = last_one->next); | |
9e86da07 | 431 | last_one->next = this; |
c906108c SS |
432 | } |
433 | ||
6c95b8df | 434 | /* Rebuild section map next time we need it. */ |
9e86da07 | 435 | get_objfile_pspace_data (pspace)->new_objfiles_available = 1; |
c906108c SS |
436 | } |
437 | ||
5e2b427d | 438 | /* Retrieve the gdbarch associated with OBJFILE. */ |
9c1877ea | 439 | |
5e2b427d | 440 | struct gdbarch * |
9c1877ea | 441 | get_objfile_arch (const struct objfile *objfile) |
5e2b427d | 442 | { |
df6d5441 | 443 | return objfile->per_bfd->gdbarch; |
5e2b427d UW |
444 | } |
445 | ||
abd0a5fa JK |
446 | /* If there is a valid and known entry point, function fills *ENTRY_P with it |
447 | and returns non-zero; otherwise it returns zero. */ | |
9ab9195f | 448 | |
abd0a5fa JK |
449 | int |
450 | entry_point_address_query (CORE_ADDR *entry_p) | |
9ab9195f | 451 | { |
6ef55de7 | 452 | if (symfile_objfile == NULL || !symfile_objfile->per_bfd->ei.entry_point_p) |
3612b192 DJ |
453 | return 0; |
454 | ||
6ef55de7 | 455 | *entry_p = (symfile_objfile->per_bfd->ei.entry_point |
53eddfa6 | 456 | + ANOFFSET (symfile_objfile->section_offsets, |
6ef55de7 | 457 | symfile_objfile->per_bfd->ei.the_bfd_section_index)); |
3612b192 | 458 | |
abd0a5fa JK |
459 | return 1; |
460 | } | |
461 | ||
462 | /* Get current entry point address. Call error if it is not known. */ | |
463 | ||
464 | CORE_ADDR | |
465 | entry_point_address (void) | |
466 | { | |
467 | CORE_ADDR retval; | |
468 | ||
469 | if (!entry_point_address_query (&retval)) | |
470 | error (_("Entry point address is not known.")); | |
471 | ||
472 | return retval; | |
9ab9195f | 473 | } |
15831452 | 474 | |
15d123c9 TG |
475 | /* Iterator on PARENT and every separate debug objfile of PARENT. |
476 | The usage pattern is: | |
477 | for (objfile = parent; | |
478 | objfile; | |
479 | objfile = objfile_separate_debug_iterate (parent, objfile)) | |
480 | ... | |
481 | */ | |
482 | ||
483 | struct objfile * | |
484 | objfile_separate_debug_iterate (const struct objfile *parent, | |
485 | const struct objfile *objfile) | |
486 | { | |
487 | struct objfile *res; | |
488 | ||
399f313b | 489 | /* If any, return the first child. */ |
15d123c9 TG |
490 | res = objfile->separate_debug_objfile; |
491 | if (res) | |
492 | return res; | |
493 | ||
15d123c9 TG |
494 | /* Common case where there is no separate debug objfile. */ |
495 | if (objfile == parent) | |
496 | return NULL; | |
497 | ||
399f313b TG |
498 | /* Return the brother if any. Note that we don't iterate on brothers of |
499 | the parents. */ | |
500 | res = objfile->separate_debug_objfile_link; | |
501 | if (res) | |
502 | return res; | |
503 | ||
15d123c9 TG |
504 | for (res = objfile->separate_debug_objfile_backlink; |
505 | res != parent; | |
506 | res = res->separate_debug_objfile_backlink) | |
507 | { | |
508 | gdb_assert (res != NULL); | |
509 | if (res->separate_debug_objfile_link) | |
510 | return res->separate_debug_objfile_link; | |
511 | } | |
512 | return NULL; | |
513 | } | |
15831452 | 514 | |
5b5d99cf JB |
515 | /* Put one object file before a specified on in the global list. |
516 | This can be used to make sure an object file is destroyed before | |
0df8b418 | 517 | another when using ALL_OBJFILES_SAFE to free all objfiles. */ |
5b5d99cf JB |
518 | void |
519 | put_objfile_before (struct objfile *objfile, struct objfile *before_this) | |
520 | { | |
521 | struct objfile **objp; | |
522 | ||
523 | unlink_objfile (objfile); | |
524 | ||
525 | for (objp = &object_files; *objp != NULL; objp = &((*objp)->next)) | |
526 | { | |
527 | if (*objp == before_this) | |
528 | { | |
529 | objfile->next = *objp; | |
530 | *objp = objfile; | |
531 | return; | |
532 | } | |
533 | } | |
534 | ||
535 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 536 | _("put_objfile_before: before objfile not in list")); |
5b5d99cf JB |
537 | } |
538 | ||
c906108c SS |
539 | /* Unlink OBJFILE from the list of known objfiles, if it is found in the |
540 | list. | |
541 | ||
542 | It is not a bug, or error, to call this function if OBJFILE is not known | |
543 | to be in the current list. This is done in the case of mapped objfiles, | |
544 | for example, just to ensure that the mapped objfile doesn't appear twice | |
545 | in the list. Since the list is threaded, linking in a mapped objfile | |
546 | twice would create a circular list. | |
547 | ||
548 | If OBJFILE turns out to be in the list, we zap it's NEXT pointer after | |
549 | unlinking it, just to ensure that we have completely severed any linkages | |
0df8b418 | 550 | between the OBJFILE and the list. */ |
c906108c SS |
551 | |
552 | void | |
fba45db2 | 553 | unlink_objfile (struct objfile *objfile) |
c906108c | 554 | { |
c5aa993b | 555 | struct objfile **objpp; |
c906108c | 556 | |
c5aa993b | 557 | for (objpp = &object_files; *objpp != NULL; objpp = &((*objpp)->next)) |
c906108c | 558 | { |
c5aa993b | 559 | if (*objpp == objfile) |
c906108c | 560 | { |
c5aa993b JM |
561 | *objpp = (*objpp)->next; |
562 | objfile->next = NULL; | |
07cd4b97 | 563 | return; |
c906108c SS |
564 | } |
565 | } | |
07cd4b97 | 566 | |
8e65ff28 | 567 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 568 | _("unlink_objfile: objfile already unlinked")); |
c906108c SS |
569 | } |
570 | ||
15d123c9 TG |
571 | /* Add OBJFILE as a separate debug objfile of PARENT. */ |
572 | ||
573 | void | |
574 | add_separate_debug_objfile (struct objfile *objfile, struct objfile *parent) | |
575 | { | |
576 | gdb_assert (objfile && parent); | |
577 | ||
578 | /* Must not be already in a list. */ | |
579 | gdb_assert (objfile->separate_debug_objfile_backlink == NULL); | |
580 | gdb_assert (objfile->separate_debug_objfile_link == NULL); | |
8a92335b JK |
581 | gdb_assert (objfile->separate_debug_objfile == NULL); |
582 | gdb_assert (parent->separate_debug_objfile_backlink == NULL); | |
583 | gdb_assert (parent->separate_debug_objfile_link == NULL); | |
15d123c9 TG |
584 | |
585 | objfile->separate_debug_objfile_backlink = parent; | |
586 | objfile->separate_debug_objfile_link = parent->separate_debug_objfile; | |
587 | parent->separate_debug_objfile = objfile; | |
588 | ||
589 | /* Put the separate debug object before the normal one, this is so that | |
0df8b418 | 590 | usage of the ALL_OBJFILES_SAFE macro will stay safe. */ |
15d123c9 TG |
591 | put_objfile_before (objfile, parent); |
592 | } | |
593 | ||
594 | /* Free all separate debug objfile of OBJFILE, but don't free OBJFILE | |
595 | itself. */ | |
596 | ||
597 | void | |
598 | free_objfile_separate_debug (struct objfile *objfile) | |
599 | { | |
600 | struct objfile *child; | |
601 | ||
602 | for (child = objfile->separate_debug_objfile; child;) | |
603 | { | |
604 | struct objfile *next_child = child->separate_debug_objfile_link; | |
9e86da07 | 605 | delete child; |
15d123c9 TG |
606 | child = next_child; |
607 | } | |
608 | } | |
c906108c | 609 | |
7580e917 | 610 | /* Destroy an objfile and all the symtabs and psymtabs under it. */ |
c906108c | 611 | |
9e86da07 | 612 | objfile::~objfile () |
c906108c | 613 | { |
63644780 | 614 | /* First notify observers that this objfile is about to be freed. */ |
76727919 | 615 | gdb::observers::free_objfile.notify (this); |
63644780 | 616 | |
15d123c9 | 617 | /* Free all separate debug objfiles. */ |
9e86da07 | 618 | free_objfile_separate_debug (this); |
15d123c9 | 619 | |
9e86da07 | 620 | if (separate_debug_objfile_backlink) |
5b5d99cf JB |
621 | { |
622 | /* We freed the separate debug file, make sure the base objfile | |
623 | doesn't reference it. */ | |
15d123c9 TG |
624 | struct objfile *child; |
625 | ||
9e86da07 | 626 | child = separate_debug_objfile_backlink->separate_debug_objfile; |
15d123c9 | 627 | |
9e86da07 | 628 | if (child == this) |
15d123c9 | 629 | { |
9e86da07 TT |
630 | /* THIS is the first child. */ |
631 | separate_debug_objfile_backlink->separate_debug_objfile = | |
632 | separate_debug_objfile_link; | |
15d123c9 TG |
633 | } |
634 | else | |
635 | { | |
9e86da07 | 636 | /* Find THIS in the list. */ |
15d123c9 TG |
637 | while (1) |
638 | { | |
9e86da07 | 639 | if (child->separate_debug_objfile_link == this) |
15d123c9 TG |
640 | { |
641 | child->separate_debug_objfile_link = | |
9e86da07 | 642 | separate_debug_objfile_link; |
15d123c9 TG |
643 | break; |
644 | } | |
645 | child = child->separate_debug_objfile_link; | |
646 | gdb_assert (child); | |
647 | } | |
648 | } | |
5b5d99cf | 649 | } |
9e86da07 | 650 | |
ae5a43e0 DJ |
651 | /* Remove any references to this objfile in the global value |
652 | lists. */ | |
9e86da07 | 653 | preserve_values (this); |
ae5a43e0 | 654 | |
9f743ef6 JK |
655 | /* It still may reference data modules have associated with the objfile and |
656 | the symbol file data. */ | |
9e86da07 | 657 | forget_cached_source_info_for_objfile (this); |
9f743ef6 | 658 | |
9e86da07 TT |
659 | breakpoint_free_objfile (this); |
660 | btrace_free_objfile (this); | |
2f202fde | 661 | |
c906108c SS |
662 | /* First do any symbol file specific actions required when we are |
663 | finished with a particular symbol file. Note that if the objfile | |
664 | is using reusable symbol information (via mmalloc) then each of | |
665 | these routines is responsible for doing the correct thing, either | |
666 | freeing things which are valid only during this particular gdb | |
0df8b418 | 667 | execution, or leaving them to be reused during the next one. */ |
c906108c | 668 | |
9e86da07 TT |
669 | if (sf != NULL) |
670 | (*sf->sym_finish) (this); | |
c906108c | 671 | |
9f743ef6 | 672 | /* Discard any data modules have associated with the objfile. The function |
9e86da07 TT |
673 | still may reference obfd. */ |
674 | objfile_free_data (this); | |
c5bc3a77 | 675 | |
9e86da07 TT |
676 | if (obfd) |
677 | gdb_bfd_unref (obfd); | |
706e3705 | 678 | else |
9e86da07 | 679 | free_objfile_per_bfd_storage (per_bfd); |
c906108c | 680 | |
0df8b418 | 681 | /* Remove it from the chain of all objfiles. */ |
c906108c | 682 | |
9e86da07 | 683 | unlink_objfile (this); |
c906108c | 684 | |
9e86da07 | 685 | if (this == symfile_objfile) |
adb7f338 | 686 | symfile_objfile = NULL; |
c906108c | 687 | |
c906108c SS |
688 | /* Before the symbol table code was redone to make it easier to |
689 | selectively load and remove information particular to a specific | |
690 | linkage unit, gdb used to do these things whenever the monolithic | |
691 | symbol table was blown away. How much still needs to be done | |
692 | is unknown, but we play it safe for now and keep each action until | |
0df8b418 | 693 | it is shown to be no longer needed. */ |
c5aa993b | 694 | |
cb5d864f FF |
695 | /* Not all our callers call clear_symtab_users (objfile_purge_solibs, |
696 | for example), so we need to call this here. */ | |
c906108c SS |
697 | clear_pc_function_cache (); |
698 | ||
9bdcbae7 DJ |
699 | /* Clear globals which might have pointed into a removed objfile. |
700 | FIXME: It's not clear which of these are supposed to persist | |
701 | between expressions and which ought to be reset each time. */ | |
702 | expression_context_block = NULL; | |
aee1fcdf | 703 | innermost_block.reset (); |
9bdcbae7 | 704 | |
cb5d864f | 705 | /* Check to see if the current_source_symtab belongs to this objfile, |
0df8b418 | 706 | and if so, call clear_current_source_symtab_and_line. */ |
cb5d864f FF |
707 | |
708 | { | |
709 | struct symtab_and_line cursal = get_current_source_symtab_and_line (); | |
cb5d864f | 710 | |
9e86da07 | 711 | if (cursal.symtab && SYMTAB_OBJFILE (cursal.symtab) == this) |
00174a86 | 712 | clear_current_source_symtab_and_line (); |
cb5d864f FF |
713 | } |
714 | ||
0df8b418 | 715 | /* Free the obstacks for non-reusable objfiles. */ |
9e86da07 TT |
716 | psymbol_bcache_free (psymbol_cache); |
717 | obstack_free (&objfile_obstack, 0); | |
6c95b8df PA |
718 | |
719 | /* Rebuild section map next time we need it. */ | |
9e86da07 | 720 | get_objfile_pspace_data (pspace)->section_map_dirty = 1; |
6c95b8df | 721 | |
63e43d3a PMR |
722 | /* Free the map for static links. There's no need to free static link |
723 | themselves since they were allocated on the objstack. */ | |
9e86da07 TT |
724 | if (static_links != NULL) |
725 | htab_delete (static_links); | |
c906108c SS |
726 | } |
727 | ||
c906108c SS |
728 | /* Free all the object files at once and clean up their users. */ |
729 | ||
730 | void | |
fba45db2 | 731 | free_all_objfiles (void) |
c906108c SS |
732 | { |
733 | struct objfile *objfile, *temp; | |
0133421a JK |
734 | struct so_list *so; |
735 | ||
736 | /* Any objfile referencewould become stale. */ | |
737 | for (so = master_so_list (); so; so = so->next) | |
738 | gdb_assert (so->objfile == NULL); | |
c906108c SS |
739 | |
740 | ALL_OBJFILES_SAFE (objfile, temp) | |
c5aa993b | 741 | { |
9e86da07 | 742 | delete objfile; |
c5aa993b | 743 | } |
c1e56572 | 744 | clear_symtab_users (0); |
c906108c SS |
745 | } |
746 | \f | |
34eaf542 TT |
747 | /* A helper function for objfile_relocate1 that relocates a single |
748 | symbol. */ | |
749 | ||
750 | static void | |
751 | relocate_one_symbol (struct symbol *sym, struct objfile *objfile, | |
752 | struct section_offsets *delta) | |
753 | { | |
754 | fixup_symbol_section (sym, objfile); | |
755 | ||
756 | /* The RS6000 code from which this was taken skipped | |
757 | any symbols in STRUCT_DOMAIN or UNDEF_DOMAIN. | |
758 | But I'm leaving out that test, on the theory that | |
759 | they can't possibly pass the tests below. */ | |
760 | if ((SYMBOL_CLASS (sym) == LOC_LABEL | |
761 | || SYMBOL_CLASS (sym) == LOC_STATIC) | |
762 | && SYMBOL_SECTION (sym) >= 0) | |
763 | { | |
764 | SYMBOL_VALUE_ADDRESS (sym) += ANOFFSET (delta, SYMBOL_SECTION (sym)); | |
765 | } | |
766 | } | |
767 | ||
c906108c | 768 | /* Relocate OBJFILE to NEW_OFFSETS. There should be OBJFILE->NUM_SECTIONS |
b260e109 JK |
769 | entries in new_offsets. SEPARATE_DEBUG_OBJFILE is not touched here. |
770 | Return non-zero iff any change happened. */ | |
567995e1 | 771 | |
b260e109 | 772 | static int |
5cc80db3 | 773 | objfile_relocate1 (struct objfile *objfile, |
3189cb12 | 774 | const struct section_offsets *new_offsets) |
c906108c | 775 | { |
30510692 | 776 | struct obj_section *s; |
d4f3574e | 777 | struct section_offsets *delta = |
a39a16c4 MM |
778 | ((struct section_offsets *) |
779 | alloca (SIZEOF_N_SECTION_OFFSETS (objfile->num_sections))); | |
c906108c | 780 | |
5cc80db3 MS |
781 | int i; |
782 | int something_changed = 0; | |
783 | ||
784 | for (i = 0; i < objfile->num_sections; ++i) | |
785 | { | |
786 | delta->offsets[i] = | |
787 | ANOFFSET (new_offsets, i) - ANOFFSET (objfile->section_offsets, i); | |
788 | if (ANOFFSET (delta, i) != 0) | |
789 | something_changed = 1; | |
790 | } | |
791 | if (!something_changed) | |
792 | return 0; | |
c906108c SS |
793 | |
794 | /* OK, get all the symtabs. */ | |
795 | { | |
43f3e411 | 796 | struct compunit_symtab *cust; |
c906108c SS |
797 | struct symtab *s; |
798 | ||
43f3e411 | 799 | ALL_OBJFILE_FILETABS (objfile, cust, s) |
c5aa993b JM |
800 | { |
801 | struct linetable *l; | |
c5aa993b JM |
802 | int i; |
803 | ||
804 | /* First the line table. */ | |
8435453b | 805 | l = SYMTAB_LINETABLE (s); |
c5aa993b JM |
806 | if (l) |
807 | { | |
808 | for (i = 0; i < l->nitems; ++i) | |
43f3e411 DE |
809 | l->item[i].pc += ANOFFSET (delta, |
810 | COMPUNIT_BLOCK_LINE_SECTION | |
811 | (cust)); | |
c5aa993b | 812 | } |
43f3e411 | 813 | } |
c906108c | 814 | |
43f3e411 DE |
815 | ALL_OBJFILE_COMPUNITS (objfile, cust) |
816 | { | |
817 | const struct blockvector *bv = COMPUNIT_BLOCKVECTOR (cust); | |
818 | int block_line_section = COMPUNIT_BLOCK_LINE_SECTION (cust); | |
c906108c | 819 | |
b101f7a1 UW |
820 | if (BLOCKVECTOR_MAP (bv)) |
821 | addrmap_relocate (BLOCKVECTOR_MAP (bv), | |
43f3e411 | 822 | ANOFFSET (delta, block_line_section)); |
b101f7a1 | 823 | |
c5aa993b JM |
824 | for (i = 0; i < BLOCKVECTOR_NBLOCKS (bv); ++i) |
825 | { | |
826 | struct block *b; | |
e88c90f2 | 827 | struct symbol *sym; |
de4f826b | 828 | struct dict_iterator iter; |
c5aa993b JM |
829 | |
830 | b = BLOCKVECTOR_BLOCK (bv, i); | |
43f3e411 DE |
831 | BLOCK_START (b) += ANOFFSET (delta, block_line_section); |
832 | BLOCK_END (b) += ANOFFSET (delta, block_line_section); | |
c5aa993b | 833 | |
8157b174 TT |
834 | /* We only want to iterate over the local symbols, not any |
835 | symbols in included symtabs. */ | |
836 | ALL_DICT_SYMBOLS (BLOCK_DICT (b), iter, sym) | |
c5aa993b | 837 | { |
34eaf542 | 838 | relocate_one_symbol (sym, objfile, delta); |
c5aa993b JM |
839 | } |
840 | } | |
841 | } | |
c906108c SS |
842 | } |
843 | ||
34eaf542 TT |
844 | /* Relocate isolated symbols. */ |
845 | { | |
846 | struct symbol *iter; | |
847 | ||
848 | for (iter = objfile->template_symbols; iter; iter = iter->hash_next) | |
849 | relocate_one_symbol (iter, objfile, delta); | |
850 | } | |
851 | ||
9b14d7aa JK |
852 | if (objfile->psymtabs_addrmap) |
853 | addrmap_relocate (objfile->psymtabs_addrmap, | |
854 | ANOFFSET (delta, SECT_OFF_TEXT (objfile))); | |
855 | ||
ccefe4c4 TT |
856 | if (objfile->sf) |
857 | objfile->sf->qf->relocate (objfile, new_offsets, delta); | |
c906108c | 858 | |
f1f2b5f4 PA |
859 | { |
860 | int i; | |
5cc80db3 | 861 | |
f1f2b5f4 PA |
862 | for (i = 0; i < objfile->num_sections; ++i) |
863 | (objfile->section_offsets)->offsets[i] = ANOFFSET (new_offsets, i); | |
864 | } | |
865 | ||
866 | /* Rebuild section map next time we need it. */ | |
607ece04 | 867 | get_objfile_pspace_data (objfile->pspace)->section_map_dirty = 1; |
f1f2b5f4 | 868 | |
30510692 DJ |
869 | /* Update the table in exec_ops, used to read memory. */ |
870 | ALL_OBJFILE_OSECTIONS (objfile, s) | |
871 | { | |
65cf3563 | 872 | int idx = s - objfile->sections; |
30510692 DJ |
873 | |
874 | exec_set_section_address (bfd_get_filename (objfile->obfd), idx, | |
f1f6aadf | 875 | obj_section_addr (s)); |
30510692 | 876 | } |
b260e109 JK |
877 | |
878 | /* Data changed. */ | |
879 | return 1; | |
567995e1 JK |
880 | } |
881 | ||
882 | /* Relocate OBJFILE to NEW_OFFSETS. There should be OBJFILE->NUM_SECTIONS | |
883 | entries in new_offsets. Process also OBJFILE's SEPARATE_DEBUG_OBJFILEs. | |
884 | ||
885 | The number and ordering of sections does differ between the two objfiles. | |
886 | Only their names match. Also the file offsets will differ (objfile being | |
887 | possibly prelinked but separate_debug_objfile is probably not prelinked) but | |
888 | the in-memory absolute address as specified by NEW_OFFSETS must match both | |
889 | files. */ | |
890 | ||
891 | void | |
3189cb12 DE |
892 | objfile_relocate (struct objfile *objfile, |
893 | const struct section_offsets *new_offsets) | |
567995e1 JK |
894 | { |
895 | struct objfile *debug_objfile; | |
b260e109 | 896 | int changed = 0; |
567995e1 | 897 | |
b260e109 | 898 | changed |= objfile_relocate1 (objfile, new_offsets); |
567995e1 JK |
899 | |
900 | for (debug_objfile = objfile->separate_debug_objfile; | |
901 | debug_objfile; | |
902 | debug_objfile = objfile_separate_debug_iterate (objfile, debug_objfile)) | |
903 | { | |
37e136b1 TT |
904 | section_addr_info objfile_addrs |
905 | = build_section_addr_info_from_objfile (objfile); | |
567995e1 JK |
906 | |
907 | /* Here OBJFILE_ADDRS contain the correct absolute addresses, the | |
908 | relative ones must be already created according to debug_objfile. */ | |
909 | ||
37e136b1 | 910 | addr_info_make_relative (&objfile_addrs, debug_objfile->obfd); |
567995e1 JK |
911 | |
912 | gdb_assert (debug_objfile->num_sections | |
d445b2f6 | 913 | == gdb_bfd_count_sections (debug_objfile->obfd)); |
cfe826d4 TT |
914 | std::vector<struct section_offsets> |
915 | new_debug_offsets (SIZEOF_N_SECTION_OFFSETS (debug_objfile->num_sections)); | |
916 | relative_addr_info_to_section_offsets (new_debug_offsets.data (), | |
567995e1 JK |
917 | debug_objfile->num_sections, |
918 | objfile_addrs); | |
919 | ||
cfe826d4 | 920 | changed |= objfile_relocate1 (debug_objfile, new_debug_offsets.data ()); |
567995e1 | 921 | } |
30510692 | 922 | |
0df8b418 | 923 | /* Relocate breakpoints as necessary, after things are relocated. */ |
b260e109 JK |
924 | if (changed) |
925 | breakpoint_re_set (); | |
c906108c | 926 | } |
4141a416 JB |
927 | |
928 | /* Rebase (add to the offsets) OBJFILE by SLIDE. SEPARATE_DEBUG_OBJFILE is | |
929 | not touched here. | |
930 | Return non-zero iff any change happened. */ | |
931 | ||
932 | static int | |
933 | objfile_rebase1 (struct objfile *objfile, CORE_ADDR slide) | |
934 | { | |
935 | struct section_offsets *new_offsets = | |
936 | ((struct section_offsets *) | |
937 | alloca (SIZEOF_N_SECTION_OFFSETS (objfile->num_sections))); | |
938 | int i; | |
939 | ||
940 | for (i = 0; i < objfile->num_sections; ++i) | |
941 | new_offsets->offsets[i] = slide; | |
942 | ||
943 | return objfile_relocate1 (objfile, new_offsets); | |
944 | } | |
945 | ||
946 | /* Rebase (add to the offsets) OBJFILE by SLIDE. Process also OBJFILE's | |
947 | SEPARATE_DEBUG_OBJFILEs. */ | |
948 | ||
949 | void | |
950 | objfile_rebase (struct objfile *objfile, CORE_ADDR slide) | |
951 | { | |
952 | struct objfile *debug_objfile; | |
953 | int changed = 0; | |
954 | ||
955 | changed |= objfile_rebase1 (objfile, slide); | |
956 | ||
957 | for (debug_objfile = objfile->separate_debug_objfile; | |
958 | debug_objfile; | |
959 | debug_objfile = objfile_separate_debug_iterate (objfile, debug_objfile)) | |
960 | changed |= objfile_rebase1 (debug_objfile, slide); | |
961 | ||
962 | /* Relocate breakpoints as necessary, after things are relocated. */ | |
963 | if (changed) | |
964 | breakpoint_re_set (); | |
965 | } | |
c906108c | 966 | \f |
55333a84 DE |
967 | /* Return non-zero if OBJFILE has partial symbols. */ |
968 | ||
969 | int | |
970 | objfile_has_partial_symbols (struct objfile *objfile) | |
971 | { | |
b11896a5 TT |
972 | if (!objfile->sf) |
973 | return 0; | |
3e03848b JK |
974 | |
975 | /* If we have not read psymbols, but we have a function capable of reading | |
976 | them, then that is an indication that they are in fact available. Without | |
977 | this function the symbols may have been already read in but they also may | |
978 | not be present in this objfile. */ | |
979 | if ((objfile->flags & OBJF_PSYMTABS_READ) == 0 | |
980 | && objfile->sf->sym_read_psymbols != NULL) | |
981 | return 1; | |
982 | ||
b11896a5 | 983 | return objfile->sf->qf->has_symbols (objfile); |
55333a84 DE |
984 | } |
985 | ||
986 | /* Return non-zero if OBJFILE has full symbols. */ | |
987 | ||
988 | int | |
989 | objfile_has_full_symbols (struct objfile *objfile) | |
990 | { | |
43f3e411 | 991 | return objfile->compunit_symtabs != NULL; |
55333a84 DE |
992 | } |
993 | ||
e361b228 | 994 | /* Return non-zero if OBJFILE has full or partial symbols, either directly |
15d123c9 | 995 | or through a separate debug file. */ |
e361b228 TG |
996 | |
997 | int | |
998 | objfile_has_symbols (struct objfile *objfile) | |
999 | { | |
15d123c9 | 1000 | struct objfile *o; |
e361b228 | 1001 | |
15d123c9 TG |
1002 | for (o = objfile; o; o = objfile_separate_debug_iterate (objfile, o)) |
1003 | if (objfile_has_partial_symbols (o) || objfile_has_full_symbols (o)) | |
1004 | return 1; | |
e361b228 TG |
1005 | return 0; |
1006 | } | |
1007 | ||
1008 | ||
c906108c SS |
1009 | /* Many places in gdb want to test just to see if we have any partial |
1010 | symbols available. This function returns zero if none are currently | |
0df8b418 | 1011 | available, nonzero otherwise. */ |
c906108c SS |
1012 | |
1013 | int | |
fba45db2 | 1014 | have_partial_symbols (void) |
c906108c SS |
1015 | { |
1016 | struct objfile *ofp; | |
1017 | ||
1018 | ALL_OBJFILES (ofp) | |
c5aa993b | 1019 | { |
55333a84 DE |
1020 | if (objfile_has_partial_symbols (ofp)) |
1021 | return 1; | |
c5aa993b | 1022 | } |
c906108c SS |
1023 | return 0; |
1024 | } | |
1025 | ||
1026 | /* Many places in gdb want to test just to see if we have any full | |
1027 | symbols available. This function returns zero if none are currently | |
0df8b418 | 1028 | available, nonzero otherwise. */ |
c906108c SS |
1029 | |
1030 | int | |
fba45db2 | 1031 | have_full_symbols (void) |
c906108c SS |
1032 | { |
1033 | struct objfile *ofp; | |
1034 | ||
1035 | ALL_OBJFILES (ofp) | |
c5aa993b | 1036 | { |
55333a84 DE |
1037 | if (objfile_has_full_symbols (ofp)) |
1038 | return 1; | |
c5aa993b | 1039 | } |
c906108c SS |
1040 | return 0; |
1041 | } | |
1042 | ||
1043 | ||
1044 | /* This operations deletes all objfile entries that represent solibs that | |
1045 | weren't explicitly loaded by the user, via e.g., the add-symbol-file | |
0df8b418 MS |
1046 | command. */ |
1047 | ||
c906108c | 1048 | void |
fba45db2 | 1049 | objfile_purge_solibs (void) |
c906108c | 1050 | { |
c5aa993b JM |
1051 | struct objfile *objf; |
1052 | struct objfile *temp; | |
c906108c SS |
1053 | |
1054 | ALL_OBJFILES_SAFE (objf, temp) | |
1055 | { | |
1056 | /* We assume that the solib package has been purged already, or will | |
0df8b418 MS |
1057 | be soon. */ |
1058 | ||
2df3850c | 1059 | if (!(objf->flags & OBJF_USERLOADED) && (objf->flags & OBJF_SHARED)) |
9e86da07 | 1060 | delete objf; |
c906108c SS |
1061 | } |
1062 | } | |
1063 | ||
1064 | ||
1065 | /* Many places in gdb want to test just to see if we have any minimal | |
1066 | symbols available. This function returns zero if none are currently | |
0df8b418 | 1067 | available, nonzero otherwise. */ |
c906108c SS |
1068 | |
1069 | int | |
fba45db2 | 1070 | have_minimal_symbols (void) |
c906108c SS |
1071 | { |
1072 | struct objfile *ofp; | |
1073 | ||
1074 | ALL_OBJFILES (ofp) | |
c5aa993b | 1075 | { |
34643a32 | 1076 | if (ofp->per_bfd->minimal_symbol_count > 0) |
c5aa993b JM |
1077 | { |
1078 | return 1; | |
1079 | } | |
1080 | } | |
c906108c SS |
1081 | return 0; |
1082 | } | |
1083 | ||
a845f5cb PP |
1084 | /* Qsort comparison function. */ |
1085 | ||
1086 | static int | |
1087 | qsort_cmp (const void *a, const void *b) | |
1088 | { | |
1089 | const struct obj_section *sect1 = *(const struct obj_section **) a; | |
1090 | const struct obj_section *sect2 = *(const struct obj_section **) b; | |
1091 | const CORE_ADDR sect1_addr = obj_section_addr (sect1); | |
1092 | const CORE_ADDR sect2_addr = obj_section_addr (sect2); | |
1093 | ||
1094 | if (sect1_addr < sect2_addr) | |
6fbf07cd | 1095 | return -1; |
a845f5cb | 1096 | else if (sect1_addr > sect2_addr) |
6fbf07cd PP |
1097 | return 1; |
1098 | else | |
5cc80db3 MS |
1099 | { |
1100 | /* Sections are at the same address. This could happen if | |
1101 | A) we have an objfile and a separate debuginfo. | |
1102 | B) we are confused, and have added sections without proper relocation, | |
0df8b418 | 1103 | or something like that. */ |
5cc80db3 MS |
1104 | |
1105 | const struct objfile *const objfile1 = sect1->objfile; | |
1106 | const struct objfile *const objfile2 = sect2->objfile; | |
1107 | ||
1108 | if (objfile1->separate_debug_objfile == objfile2 | |
1109 | || objfile2->separate_debug_objfile == objfile1) | |
1110 | { | |
1111 | /* Case A. The ordering doesn't matter: separate debuginfo files | |
1112 | will be filtered out later. */ | |
1113 | ||
1114 | return 0; | |
1115 | } | |
1116 | ||
1117 | /* Case B. Maintain stable sort order, so bugs in GDB are easier to | |
1118 | triage. This section could be slow (since we iterate over all | |
1119 | objfiles in each call to qsort_cmp), but this shouldn't happen | |
1120 | very often (GDB is already in a confused state; one hopes this | |
1121 | doesn't happen at all). If you discover that significant time is | |
1122 | spent in the loops below, do 'set complaints 100' and examine the | |
1123 | resulting complaints. */ | |
1124 | ||
1125 | if (objfile1 == objfile2) | |
1126 | { | |
1127 | /* Both sections came from the same objfile. We are really confused. | |
1128 | Sort on sequence order of sections within the objfile. */ | |
1129 | ||
1130 | const struct obj_section *osect; | |
1131 | ||
1132 | ALL_OBJFILE_OSECTIONS (objfile1, osect) | |
1133 | if (osect == sect1) | |
1134 | return -1; | |
1135 | else if (osect == sect2) | |
1136 | return 1; | |
1137 | ||
1138 | /* We should have found one of the sections before getting here. */ | |
f3574227 | 1139 | gdb_assert_not_reached ("section not found"); |
5cc80db3 MS |
1140 | } |
1141 | else | |
1142 | { | |
1143 | /* Sort on sequence number of the objfile in the chain. */ | |
1144 | ||
1145 | const struct objfile *objfile; | |
1146 | ||
1147 | ALL_OBJFILES (objfile) | |
1148 | if (objfile == objfile1) | |
1149 | return -1; | |
1150 | else if (objfile == objfile2) | |
1151 | return 1; | |
1152 | ||
1153 | /* We should have found one of the objfiles before getting here. */ | |
f3574227 | 1154 | gdb_assert_not_reached ("objfile not found"); |
5cc80db3 MS |
1155 | } |
1156 | } | |
6fbf07cd PP |
1157 | |
1158 | /* Unreachable. */ | |
f3574227 | 1159 | gdb_assert_not_reached ("unexpected code path"); |
a845f5cb PP |
1160 | return 0; |
1161 | } | |
1162 | ||
3aad21cf PP |
1163 | /* Select "better" obj_section to keep. We prefer the one that came from |
1164 | the real object, rather than the one from separate debuginfo. | |
1165 | Most of the time the two sections are exactly identical, but with | |
1166 | prelinking the .rel.dyn section in the real object may have different | |
1167 | size. */ | |
1168 | ||
1169 | static struct obj_section * | |
1170 | preferred_obj_section (struct obj_section *a, struct obj_section *b) | |
1171 | { | |
1172 | gdb_assert (obj_section_addr (a) == obj_section_addr (b)); | |
1173 | gdb_assert ((a->objfile->separate_debug_objfile == b->objfile) | |
1174 | || (b->objfile->separate_debug_objfile == a->objfile)); | |
1175 | gdb_assert ((a->objfile->separate_debug_objfile_backlink == b->objfile) | |
1176 | || (b->objfile->separate_debug_objfile_backlink == a->objfile)); | |
1177 | ||
1178 | if (a->objfile->separate_debug_objfile != NULL) | |
1179 | return a; | |
1180 | return b; | |
1181 | } | |
1182 | ||
6fbf07cd PP |
1183 | /* Return 1 if SECTION should be inserted into the section map. |
1184 | We want to insert only non-overlay and non-TLS section. */ | |
1185 | ||
1186 | static int | |
1187 | insert_section_p (const struct bfd *abfd, | |
1188 | const struct bfd_section *section) | |
1189 | { | |
1190 | const bfd_vma lma = bfd_section_lma (abfd, section); | |
1191 | ||
50f8ea94 | 1192 | if (overlay_debugging && lma != 0 && lma != bfd_section_vma (abfd, section) |
6fbf07cd PP |
1193 | && (bfd_get_file_flags (abfd) & BFD_IN_MEMORY) == 0) |
1194 | /* This is an overlay section. IN_MEMORY check is needed to avoid | |
1195 | discarding sections from the "system supplied DSO" (aka vdso) | |
1196 | on some Linux systems (e.g. Fedora 11). */ | |
1197 | return 0; | |
1198 | if ((bfd_get_section_flags (abfd, section) & SEC_THREAD_LOCAL) != 0) | |
1199 | /* This is a TLS section. */ | |
1200 | return 0; | |
1201 | ||
1202 | return 1; | |
1203 | } | |
1204 | ||
1205 | /* Filter out overlapping sections where one section came from the real | |
1206 | objfile, and the other from a separate debuginfo file. | |
1207 | Return the size of table after redundant sections have been eliminated. */ | |
1208 | ||
1209 | static int | |
1210 | filter_debuginfo_sections (struct obj_section **map, int map_size) | |
1211 | { | |
1212 | int i, j; | |
1213 | ||
1214 | for (i = 0, j = 0; i < map_size - 1; i++) | |
1215 | { | |
1216 | struct obj_section *const sect1 = map[i]; | |
1217 | struct obj_section *const sect2 = map[i + 1]; | |
1218 | const struct objfile *const objfile1 = sect1->objfile; | |
1219 | const struct objfile *const objfile2 = sect2->objfile; | |
1220 | const CORE_ADDR sect1_addr = obj_section_addr (sect1); | |
1221 | const CORE_ADDR sect2_addr = obj_section_addr (sect2); | |
1222 | ||
1223 | if (sect1_addr == sect2_addr | |
1224 | && (objfile1->separate_debug_objfile == objfile2 | |
1225 | || objfile2->separate_debug_objfile == objfile1)) | |
1226 | { | |
1227 | map[j++] = preferred_obj_section (sect1, sect2); | |
1228 | ++i; | |
1229 | } | |
1230 | else | |
1231 | map[j++] = sect1; | |
1232 | } | |
1233 | ||
1234 | if (i < map_size) | |
1235 | { | |
1236 | gdb_assert (i == map_size - 1); | |
1237 | map[j++] = map[i]; | |
1238 | } | |
1239 | ||
1240 | /* The map should not have shrunk to less than half the original size. */ | |
1241 | gdb_assert (map_size / 2 <= j); | |
1242 | ||
1243 | return j; | |
1244 | } | |
1245 | ||
1246 | /* Filter out overlapping sections, issuing a warning if any are found. | |
1247 | Overlapping sections could really be overlay sections which we didn't | |
1248 | classify as such in insert_section_p, or we could be dealing with a | |
1249 | corrupt binary. */ | |
1250 | ||
1251 | static int | |
1252 | filter_overlapping_sections (struct obj_section **map, int map_size) | |
1253 | { | |
1254 | int i, j; | |
1255 | ||
1256 | for (i = 0, j = 0; i < map_size - 1; ) | |
1257 | { | |
1258 | int k; | |
1259 | ||
1260 | map[j++] = map[i]; | |
1261 | for (k = i + 1; k < map_size; k++) | |
1262 | { | |
1263 | struct obj_section *const sect1 = map[i]; | |
1264 | struct obj_section *const sect2 = map[k]; | |
1265 | const CORE_ADDR sect1_addr = obj_section_addr (sect1); | |
1266 | const CORE_ADDR sect2_addr = obj_section_addr (sect2); | |
1267 | const CORE_ADDR sect1_endaddr = obj_section_endaddr (sect1); | |
1268 | ||
1269 | gdb_assert (sect1_addr <= sect2_addr); | |
1270 | ||
1271 | if (sect1_endaddr <= sect2_addr) | |
1272 | break; | |
1273 | else | |
1274 | { | |
1275 | /* We have an overlap. Report it. */ | |
1276 | ||
1277 | struct objfile *const objf1 = sect1->objfile; | |
1278 | struct objfile *const objf2 = sect2->objfile; | |
1279 | ||
6fbf07cd PP |
1280 | const struct bfd_section *const bfds1 = sect1->the_bfd_section; |
1281 | const struct bfd_section *const bfds2 = sect2->the_bfd_section; | |
1282 | ||
1283 | const CORE_ADDR sect2_endaddr = obj_section_endaddr (sect2); | |
1284 | ||
1285 | struct gdbarch *const gdbarch = get_objfile_arch (objf1); | |
1286 | ||
b98664d3 | 1287 | complaint (_("unexpected overlap between:\n" |
6fbf07cd PP |
1288 | " (A) section `%s' from `%s' [%s, %s)\n" |
1289 | " (B) section `%s' from `%s' [%s, %s).\n" | |
1290 | "Will ignore section B"), | |
4262abfb | 1291 | bfd_section_name (abfd1, bfds1), objfile_name (objf1), |
6fbf07cd PP |
1292 | paddress (gdbarch, sect1_addr), |
1293 | paddress (gdbarch, sect1_endaddr), | |
4262abfb | 1294 | bfd_section_name (abfd2, bfds2), objfile_name (objf2), |
6fbf07cd PP |
1295 | paddress (gdbarch, sect2_addr), |
1296 | paddress (gdbarch, sect2_endaddr)); | |
1297 | } | |
1298 | } | |
1299 | i = k; | |
1300 | } | |
1301 | ||
1302 | if (i < map_size) | |
1303 | { | |
1304 | gdb_assert (i == map_size - 1); | |
1305 | map[j++] = map[i]; | |
1306 | } | |
1307 | ||
1308 | return j; | |
1309 | } | |
1310 | ||
1311 | ||
1312 | /* Update PMAP, PMAP_SIZE with sections from all objfiles, excluding any | |
1313 | TLS, overlay and overlapping sections. */ | |
a845f5cb PP |
1314 | |
1315 | static void | |
6c95b8df PA |
1316 | update_section_map (struct program_space *pspace, |
1317 | struct obj_section ***pmap, int *pmap_size) | |
a845f5cb | 1318 | { |
607ece04 | 1319 | struct objfile_pspace_info *pspace_info; |
6fbf07cd | 1320 | int alloc_size, map_size, i; |
a845f5cb PP |
1321 | struct obj_section *s, **map; |
1322 | struct objfile *objfile; | |
1323 | ||
607ece04 GB |
1324 | pspace_info = get_objfile_pspace_data (pspace); |
1325 | gdb_assert (pspace_info->section_map_dirty != 0 | |
1326 | || pspace_info->new_objfiles_available != 0); | |
a845f5cb PP |
1327 | |
1328 | map = *pmap; | |
1329 | xfree (map); | |
1330 | ||
6fbf07cd | 1331 | alloc_size = 0; |
6c95b8df PA |
1332 | ALL_PSPACE_OBJFILES (pspace, objfile) |
1333 | ALL_OBJFILE_OSECTIONS (objfile, s) | |
1334 | if (insert_section_p (objfile->obfd, s->the_bfd_section)) | |
1335 | alloc_size += 1; | |
a845f5cb | 1336 | |
65a97ab3 PP |
1337 | /* This happens on detach/attach (e.g. in gdb.base/attach.exp). */ |
1338 | if (alloc_size == 0) | |
1339 | { | |
1340 | *pmap = NULL; | |
1341 | *pmap_size = 0; | |
1342 | return; | |
1343 | } | |
1344 | ||
8d749320 | 1345 | map = XNEWVEC (struct obj_section *, alloc_size); |
a845f5cb | 1346 | |
3aad21cf | 1347 | i = 0; |
6c95b8df PA |
1348 | ALL_PSPACE_OBJFILES (pspace, objfile) |
1349 | ALL_OBJFILE_OSECTIONS (objfile, s) | |
1350 | if (insert_section_p (objfile->obfd, s->the_bfd_section)) | |
1351 | map[i++] = s; | |
a845f5cb | 1352 | |
6fbf07cd PP |
1353 | qsort (map, alloc_size, sizeof (*map), qsort_cmp); |
1354 | map_size = filter_debuginfo_sections(map, alloc_size); | |
1355 | map_size = filter_overlapping_sections(map, map_size); | |
a845f5cb | 1356 | |
6fbf07cd PP |
1357 | if (map_size < alloc_size) |
1358 | /* Some sections were eliminated. Trim excess space. */ | |
224c3ddb | 1359 | map = XRESIZEVEC (struct obj_section *, map, map_size); |
3aad21cf | 1360 | else |
6fbf07cd | 1361 | gdb_assert (alloc_size == map_size); |
3aad21cf | 1362 | |
a845f5cb PP |
1363 | *pmap = map; |
1364 | *pmap_size = map_size; | |
1365 | } | |
1366 | ||
0df8b418 | 1367 | /* Bsearch comparison function. */ |
a845f5cb PP |
1368 | |
1369 | static int | |
1370 | bsearch_cmp (const void *key, const void *elt) | |
1371 | { | |
1372 | const CORE_ADDR pc = *(CORE_ADDR *) key; | |
1373 | const struct obj_section *section = *(const struct obj_section **) elt; | |
1374 | ||
1375 | if (pc < obj_section_addr (section)) | |
1376 | return -1; | |
1377 | if (pc < obj_section_endaddr (section)) | |
1378 | return 0; | |
1379 | return 1; | |
1380 | } | |
1381 | ||
714835d5 | 1382 | /* Returns a section whose range includes PC or NULL if none found. */ |
c906108c SS |
1383 | |
1384 | struct obj_section * | |
714835d5 | 1385 | find_pc_section (CORE_ADDR pc) |
c906108c | 1386 | { |
6c95b8df | 1387 | struct objfile_pspace_info *pspace_info; |
a845f5cb | 1388 | struct obj_section *s, **sp; |
c5aa993b | 1389 | |
714835d5 UW |
1390 | /* Check for mapped overlay section first. */ |
1391 | s = find_pc_mapped_section (pc); | |
1392 | if (s) | |
1393 | return s; | |
c906108c | 1394 | |
6c95b8df | 1395 | pspace_info = get_objfile_pspace_data (current_program_space); |
607ece04 GB |
1396 | if (pspace_info->section_map_dirty |
1397 | || (pspace_info->new_objfiles_available | |
1398 | && !pspace_info->inhibit_updates)) | |
a845f5cb | 1399 | { |
6c95b8df PA |
1400 | update_section_map (current_program_space, |
1401 | &pspace_info->sections, | |
1402 | &pspace_info->num_sections); | |
c906108c | 1403 | |
6c95b8df PA |
1404 | /* Don't need updates to section map until objfiles are added, |
1405 | removed or relocated. */ | |
607ece04 GB |
1406 | pspace_info->new_objfiles_available = 0; |
1407 | pspace_info->section_map_dirty = 0; | |
a845f5cb PP |
1408 | } |
1409 | ||
65a97ab3 PP |
1410 | /* The C standard (ISO/IEC 9899:TC2) requires the BASE argument to |
1411 | bsearch be non-NULL. */ | |
1412 | if (pspace_info->sections == NULL) | |
1413 | { | |
1414 | gdb_assert (pspace_info->num_sections == 0); | |
1415 | return NULL; | |
1416 | } | |
1417 | ||
6c95b8df PA |
1418 | sp = (struct obj_section **) bsearch (&pc, |
1419 | pspace_info->sections, | |
1420 | pspace_info->num_sections, | |
1421 | sizeof (*pspace_info->sections), | |
1422 | bsearch_cmp); | |
a845f5cb PP |
1423 | if (sp != NULL) |
1424 | return *sp; | |
714835d5 | 1425 | return NULL; |
c906108c | 1426 | } |
c5aa993b | 1427 | |
c906108c | 1428 | |
3e5d3a5a | 1429 | /* Return non-zero if PC is in a section called NAME. */ |
c906108c SS |
1430 | |
1431 | int | |
a121b7c1 | 1432 | pc_in_section (CORE_ADDR pc, const char *name) |
c906108c SS |
1433 | { |
1434 | struct obj_section *s; | |
1435 | int retval = 0; | |
c5aa993b JM |
1436 | |
1437 | s = find_pc_section (pc); | |
1438 | ||
c906108c SS |
1439 | retval = (s != NULL |
1440 | && s->the_bfd_section->name != NULL | |
3e5d3a5a | 1441 | && strcmp (s->the_bfd_section->name, name) == 0); |
c5aa993b | 1442 | return (retval); |
c906108c | 1443 | } |
0d0e1a63 MK |
1444 | \f |
1445 | ||
607ece04 | 1446 | /* Set section_map_dirty so section map will be rebuilt next time it |
bb272892 | 1447 | is used. Called by reread_symbols. */ |
a845f5cb PP |
1448 | |
1449 | void | |
bb272892 | 1450 | objfiles_changed (void) |
a845f5cb | 1451 | { |
6c95b8df | 1452 | /* Rebuild section map next time we need it. */ |
607ece04 GB |
1453 | get_objfile_pspace_data (current_program_space)->section_map_dirty = 1; |
1454 | } | |
1455 | ||
1456 | /* See comments in objfiles.h. */ | |
1457 | ||
1458 | void | |
1459 | inhibit_section_map_updates (struct program_space *pspace) | |
1460 | { | |
1461 | get_objfile_pspace_data (pspace)->inhibit_updates = 1; | |
1462 | } | |
1463 | ||
1464 | /* See comments in objfiles.h. */ | |
1465 | ||
1466 | void | |
1467 | resume_section_map_updates (struct program_space *pspace) | |
1468 | { | |
1469 | get_objfile_pspace_data (pspace)->inhibit_updates = 0; | |
1470 | } | |
1471 | ||
1472 | /* See comments in objfiles.h. */ | |
1473 | ||
1474 | void | |
1475 | resume_section_map_updates_cleanup (void *arg) | |
1476 | { | |
19ba03f4 | 1477 | resume_section_map_updates ((struct program_space *) arg); |
a845f5cb | 1478 | } |
e3c69974 | 1479 | |
63644780 NB |
1480 | /* Return 1 if ADDR maps into one of the sections of OBJFILE and 0 |
1481 | otherwise. */ | |
1482 | ||
1483 | int | |
1484 | is_addr_in_objfile (CORE_ADDR addr, const struct objfile *objfile) | |
1485 | { | |
1486 | struct obj_section *osect; | |
1487 | ||
1488 | if (objfile == NULL) | |
1489 | return 0; | |
1490 | ||
1491 | ALL_OBJFILE_OSECTIONS (objfile, osect) | |
1492 | { | |
1493 | if (section_is_overlay (osect) && !section_is_mapped (osect)) | |
1494 | continue; | |
1495 | ||
1496 | if (obj_section_addr (osect) <= addr | |
1497 | && addr < obj_section_endaddr (osect)) | |
1498 | return 1; | |
1499 | } | |
1500 | return 0; | |
1501 | } | |
1502 | ||
08351840 | 1503 | int |
d03de421 PA |
1504 | shared_objfile_contains_address_p (struct program_space *pspace, |
1505 | CORE_ADDR address) | |
08351840 PA |
1506 | { |
1507 | struct objfile *objfile; | |
1508 | ||
1509 | ALL_PSPACE_OBJFILES (pspace, objfile) | |
1510 | { | |
d03de421 | 1511 | if ((objfile->flags & OBJF_SHARED) != 0 |
08351840 PA |
1512 | && is_addr_in_objfile (address, objfile)) |
1513 | return 1; | |
1514 | } | |
1515 | ||
1516 | return 0; | |
1517 | } | |
1518 | ||
19630284 JB |
1519 | /* The default implementation for the "iterate_over_objfiles_in_search_order" |
1520 | gdbarch method. It is equivalent to use the ALL_OBJFILES macro, | |
1521 | searching the objfiles in the order they are stored internally, | |
1522 | ignoring CURRENT_OBJFILE. | |
1523 | ||
1524 | On most platorms, it should be close enough to doing the best | |
1525 | we can without some knowledge specific to the architecture. */ | |
1526 | ||
1527 | void | |
1528 | default_iterate_over_objfiles_in_search_order | |
1529 | (struct gdbarch *gdbarch, | |
1530 | iterate_over_objfiles_in_search_order_cb_ftype *cb, | |
1531 | void *cb_data, struct objfile *current_objfile) | |
1532 | { | |
1533 | int stop = 0; | |
1534 | struct objfile *objfile; | |
1535 | ||
1536 | ALL_OBJFILES (objfile) | |
1537 | { | |
1538 | stop = cb (objfile, cb_data); | |
1539 | if (stop) | |
1540 | return; | |
1541 | } | |
1542 | } | |
1543 | ||
e02c96a7 | 1544 | /* See objfiles.h. */ |
4262abfb JK |
1545 | |
1546 | const char * | |
1547 | objfile_name (const struct objfile *objfile) | |
1548 | { | |
24ba069a JK |
1549 | if (objfile->obfd != NULL) |
1550 | return bfd_get_filename (objfile->obfd); | |
1551 | ||
4262abfb JK |
1552 | return objfile->original_name; |
1553 | } | |
1554 | ||
cc485e62 DE |
1555 | /* See objfiles.h. */ |
1556 | ||
e02c96a7 DE |
1557 | const char * |
1558 | objfile_filename (const struct objfile *objfile) | |
1559 | { | |
1560 | if (objfile->obfd != NULL) | |
1561 | return bfd_get_filename (objfile->obfd); | |
1562 | ||
1563 | return NULL; | |
1564 | } | |
1565 | ||
1566 | /* See objfiles.h. */ | |
1567 | ||
cc485e62 DE |
1568 | const char * |
1569 | objfile_debug_name (const struct objfile *objfile) | |
1570 | { | |
1571 | return lbasename (objfile->original_name); | |
1572 | } | |
1573 | ||
015d2e7e DE |
1574 | /* See objfiles.h. */ |
1575 | ||
1576 | const char * | |
1577 | objfile_flavour_name (struct objfile *objfile) | |
1578 | { | |
1579 | if (objfile->obfd != NULL) | |
1580 | return bfd_flavour_name (bfd_get_flavour (objfile->obfd)); | |
1581 | return NULL; | |
1582 | } | |
1583 | ||
6c95b8df PA |
1584 | void |
1585 | _initialize_objfiles (void) | |
1586 | { | |
1587 | objfiles_pspace_data | |
8e260fc0 TT |
1588 | = register_program_space_data_with_cleanup (NULL, |
1589 | objfiles_pspace_data_cleanup); | |
706e3705 TT |
1590 | |
1591 | objfiles_bfd_data = register_bfd_data_with_cleanup (NULL, | |
1592 | objfile_bfd_data_free); | |
6c95b8df | 1593 | } |