Commit | Line | Data |
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c906108c | 1 | /* GDB routines for manipulating objfiles. |
af5f3db6 | 2 | |
61baf725 | 3 | Copyright (C) 1992-2017 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" |
a845f5cb | 49 | #include "observer.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" |
7a292a7a | 55 | |
cfe826d4 TT |
56 | #include <vector> |
57 | ||
8e260fc0 TT |
58 | /* Keep a registry of per-objfile data-pointers required by other GDB |
59 | modules. */ | |
c906108c | 60 | |
6b81941e | 61 | DEFINE_REGISTRY (objfile, REGISTRY_ACCESS_FIELD) |
0d0e1a63 | 62 | |
c906108c | 63 | /* Externally visible variables that are owned by this module. |
0df8b418 | 64 | See declarations in objfile.h for more info. */ |
c906108c | 65 | |
6c95b8df PA |
66 | struct objfile_pspace_info |
67 | { | |
6c95b8df PA |
68 | struct obj_section **sections; |
69 | int num_sections; | |
607ece04 GB |
70 | |
71 | /* Nonzero if object files have been added since the section map | |
72 | was last updated. */ | |
73 | int new_objfiles_available; | |
74 | ||
75 | /* Nonzero if the section map MUST be updated before use. */ | |
76 | int section_map_dirty; | |
77 | ||
78 | /* Nonzero if section map updates should be inhibited if possible. */ | |
79 | int inhibit_updates; | |
6c95b8df PA |
80 | }; |
81 | ||
82 | /* Per-program-space data key. */ | |
83 | static const struct program_space_data *objfiles_pspace_data; | |
84 | ||
85 | static void | |
86 | objfiles_pspace_data_cleanup (struct program_space *pspace, void *arg) | |
87 | { | |
19ba03f4 | 88 | struct objfile_pspace_info *info = (struct objfile_pspace_info *) arg; |
6c95b8df | 89 | |
487ad57c YQ |
90 | xfree (info->sections); |
91 | xfree (info); | |
6c95b8df PA |
92 | } |
93 | ||
94 | /* Get the current svr4 data. If none is found yet, add it now. This | |
95 | function always returns a valid object. */ | |
96 | ||
97 | static struct objfile_pspace_info * | |
98 | get_objfile_pspace_data (struct program_space *pspace) | |
99 | { | |
100 | struct objfile_pspace_info *info; | |
101 | ||
19ba03f4 SM |
102 | info = ((struct objfile_pspace_info *) |
103 | program_space_data (pspace, objfiles_pspace_data)); | |
6c95b8df PA |
104 | if (info == NULL) |
105 | { | |
41bf6aca | 106 | info = XCNEW (struct objfile_pspace_info); |
6c95b8df PA |
107 | set_program_space_data (pspace, objfiles_pspace_data, info); |
108 | } | |
109 | ||
110 | return info; | |
111 | } | |
112 | ||
706e3705 TT |
113 | \f |
114 | ||
115 | /* Per-BFD data key. */ | |
116 | ||
117 | static const struct bfd_data *objfiles_bfd_data; | |
118 | ||
119 | /* Create the per-BFD storage object for OBJFILE. If ABFD is not | |
120 | NULL, and it already has a per-BFD storage object, use that. | |
121 | Otherwise, allocate a new per-BFD storage object. If ABFD is not | |
122 | NULL, the object is allocated on the BFD; otherwise it is allocated | |
123 | on OBJFILE's obstack. Note that it is not safe to call this | |
124 | multiple times for a given OBJFILE -- it can only be called when | |
125 | allocating or re-initializing OBJFILE. */ | |
126 | ||
127 | static struct objfile_per_bfd_storage * | |
128 | get_objfile_bfd_data (struct objfile *objfile, struct bfd *abfd) | |
129 | { | |
130 | struct objfile_per_bfd_storage *storage = NULL; | |
131 | ||
132 | if (abfd != NULL) | |
19ba03f4 SM |
133 | storage = ((struct objfile_per_bfd_storage *) |
134 | bfd_data (abfd, objfiles_bfd_data)); | |
706e3705 TT |
135 | |
136 | if (storage == NULL) | |
137 | { | |
1da77581 TT |
138 | /* If the object requires gdb to do relocations, we simply fall |
139 | back to not sharing data across users. These cases are rare | |
140 | enough that this seems reasonable. */ | |
141 | if (abfd != NULL && !gdb_bfd_requires_relocations (abfd)) | |
706e3705 | 142 | { |
224c3ddb SM |
143 | storage |
144 | = ((struct objfile_per_bfd_storage *) | |
23732b1e | 145 | bfd_alloc (abfd, sizeof (struct objfile_per_bfd_storage))); |
706e3705 TT |
146 | set_bfd_data (abfd, objfiles_bfd_data, storage); |
147 | } | |
148 | else | |
23732b1e PA |
149 | { |
150 | storage = (objfile_per_bfd_storage *) | |
151 | obstack_alloc (&objfile->objfile_obstack, | |
152 | sizeof (objfile_per_bfd_storage)); | |
153 | } | |
154 | ||
155 | /* objfile_per_bfd_storage is not trivially constructible, must | |
156 | call the ctor manually. */ | |
157 | storage = new (storage) objfile_per_bfd_storage (); | |
706e3705 | 158 | |
1da77581 TT |
159 | /* Look up the gdbarch associated with the BFD. */ |
160 | if (abfd != NULL) | |
161 | storage->gdbarch = gdbarch_from_bfd (abfd); | |
162 | ||
706e3705 | 163 | storage->filename_cache = bcache_xmalloc (NULL, NULL); |
6532ff36 | 164 | storage->macro_cache = bcache_xmalloc (NULL, NULL); |
3d548a53 | 165 | storage->language_of_main = language_unknown; |
706e3705 TT |
166 | } |
167 | ||
168 | return storage; | |
169 | } | |
170 | ||
171 | /* Free STORAGE. */ | |
172 | ||
173 | static void | |
174 | free_objfile_per_bfd_storage (struct objfile_per_bfd_storage *storage) | |
175 | { | |
176 | bcache_xfree (storage->filename_cache); | |
6532ff36 | 177 | bcache_xfree (storage->macro_cache); |
84a1243b TT |
178 | if (storage->demangled_names_hash) |
179 | htab_delete (storage->demangled_names_hash); | |
23732b1e | 180 | storage->~objfile_per_bfd_storage (); |
706e3705 TT |
181 | } |
182 | ||
183 | /* A wrapper for free_objfile_per_bfd_storage that can be passed as a | |
184 | cleanup function to the BFD registry. */ | |
185 | ||
186 | static void | |
187 | objfile_bfd_data_free (struct bfd *unused, void *d) | |
188 | { | |
19ba03f4 | 189 | free_objfile_per_bfd_storage ((struct objfile_per_bfd_storage *) d); |
706e3705 TT |
190 | } |
191 | ||
192 | /* See objfiles.h. */ | |
193 | ||
194 | void | |
195 | set_objfile_per_bfd (struct objfile *objfile) | |
196 | { | |
197 | objfile->per_bfd = get_objfile_bfd_data (objfile, objfile->obfd); | |
198 | } | |
199 | ||
3d548a53 TT |
200 | /* Set the objfile's per-BFD notion of the "main" name and |
201 | language. */ | |
202 | ||
203 | void | |
204 | set_objfile_main_name (struct objfile *objfile, | |
205 | const char *name, enum language lang) | |
206 | { | |
207 | if (objfile->per_bfd->name_of_main == NULL | |
208 | || strcmp (objfile->per_bfd->name_of_main, name) != 0) | |
209 | objfile->per_bfd->name_of_main | |
224c3ddb SM |
210 | = (const char *) obstack_copy0 (&objfile->per_bfd->storage_obstack, name, |
211 | strlen (name)); | |
3d548a53 TT |
212 | objfile->per_bfd->language_of_main = lang; |
213 | } | |
214 | ||
63e43d3a PMR |
215 | /* Helper structure to map blocks to static link properties in hash tables. */ |
216 | ||
217 | struct static_link_htab_entry | |
218 | { | |
219 | const struct block *block; | |
220 | const struct dynamic_prop *static_link; | |
221 | }; | |
222 | ||
223 | /* Return a hash code for struct static_link_htab_entry *P. */ | |
224 | ||
225 | static hashval_t | |
226 | static_link_htab_entry_hash (const void *p) | |
227 | { | |
228 | const struct static_link_htab_entry *e | |
229 | = (const struct static_link_htab_entry *) p; | |
230 | ||
231 | return htab_hash_pointer (e->block); | |
232 | } | |
233 | ||
234 | /* Return whether P1 an P2 (pointers to struct static_link_htab_entry) are | |
235 | mappings for the same block. */ | |
236 | ||
237 | static int | |
238 | static_link_htab_entry_eq (const void *p1, const void *p2) | |
239 | { | |
240 | const struct static_link_htab_entry *e1 | |
241 | = (const struct static_link_htab_entry *) p1; | |
242 | const struct static_link_htab_entry *e2 | |
243 | = (const struct static_link_htab_entry *) p2; | |
244 | ||
245 | return e1->block == e2->block; | |
246 | } | |
247 | ||
248 | /* Register STATIC_LINK as the static link for BLOCK, which is part of OBJFILE. | |
249 | Must not be called more than once for each BLOCK. */ | |
250 | ||
251 | void | |
252 | objfile_register_static_link (struct objfile *objfile, | |
253 | const struct block *block, | |
254 | const struct dynamic_prop *static_link) | |
255 | { | |
256 | void **slot; | |
257 | struct static_link_htab_entry lookup_entry; | |
258 | struct static_link_htab_entry *entry; | |
259 | ||
260 | if (objfile->static_links == NULL) | |
261 | objfile->static_links = htab_create_alloc | |
262 | (1, &static_link_htab_entry_hash, static_link_htab_entry_eq, NULL, | |
263 | xcalloc, xfree); | |
264 | ||
265 | /* Create a slot for the mapping, make sure it's the first mapping for this | |
266 | block and then create the mapping itself. */ | |
267 | lookup_entry.block = block; | |
268 | slot = htab_find_slot (objfile->static_links, &lookup_entry, INSERT); | |
269 | gdb_assert (*slot == NULL); | |
270 | ||
271 | entry = (struct static_link_htab_entry *) obstack_alloc | |
272 | (&objfile->objfile_obstack, sizeof (*entry)); | |
273 | entry->block = block; | |
274 | entry->static_link = static_link; | |
275 | *slot = (void *) entry; | |
276 | } | |
277 | ||
278 | /* Look for a static link for BLOCK, which is part of OBJFILE. Return NULL if | |
279 | none was found. */ | |
280 | ||
281 | const struct dynamic_prop * | |
282 | objfile_lookup_static_link (struct objfile *objfile, | |
283 | const struct block *block) | |
284 | { | |
285 | struct static_link_htab_entry *entry; | |
286 | struct static_link_htab_entry lookup_entry; | |
287 | ||
288 | if (objfile->static_links == NULL) | |
289 | return NULL; | |
290 | lookup_entry.block = block; | |
291 | entry | |
292 | = (struct static_link_htab_entry *) htab_find (objfile->static_links, | |
293 | &lookup_entry); | |
294 | if (entry == NULL) | |
295 | return NULL; | |
296 | ||
297 | gdb_assert (entry->block == block); | |
298 | return entry->static_link; | |
299 | } | |
300 | ||
706e3705 TT |
301 | \f |
302 | ||
96baa820 JM |
303 | /* Called via bfd_map_over_sections to build up the section table that |
304 | the objfile references. The objfile contains pointers to the start | |
305 | of the table (objfile->sections) and to the first location after | |
0df8b418 | 306 | the end of the table (objfile->sections_end). */ |
96baa820 | 307 | |
65cf3563 TT |
308 | static void |
309 | add_to_objfile_sections_full (struct bfd *abfd, struct bfd_section *asect, | |
310 | struct objfile *objfile, int force) | |
311 | { | |
312 | struct obj_section *section; | |
313 | ||
314 | if (!force) | |
315 | { | |
316 | flagword aflag; | |
317 | ||
318 | aflag = bfd_get_section_flags (abfd, asect); | |
319 | if (!(aflag & SEC_ALLOC)) | |
320 | return; | |
321 | } | |
322 | ||
323 | section = &objfile->sections[gdb_bfd_section_index (abfd, asect)]; | |
324 | section->objfile = objfile; | |
325 | section->the_bfd_section = asect; | |
326 | section->ovly_mapped = 0; | |
327 | } | |
328 | ||
c906108c | 329 | static void |
7be0c536 | 330 | add_to_objfile_sections (struct bfd *abfd, struct bfd_section *asect, |
d82ea6a8 | 331 | void *objfilep) |
c906108c | 332 | { |
19ba03f4 | 333 | add_to_objfile_sections_full (abfd, asect, (struct objfile *) objfilep, 0); |
c906108c SS |
334 | } |
335 | ||
336 | /* Builds a section table for OBJFILE. | |
96baa820 | 337 | |
65cf3563 TT |
338 | Note that the OFFSET and OVLY_MAPPED in each table entry are |
339 | initialized to zero. */ | |
c906108c | 340 | |
d82ea6a8 | 341 | void |
fba45db2 | 342 | build_objfile_section_table (struct objfile *objfile) |
c906108c | 343 | { |
65cf3563 TT |
344 | int count = gdb_bfd_count_sections (objfile->obfd); |
345 | ||
346 | objfile->sections = OBSTACK_CALLOC (&objfile->objfile_obstack, | |
347 | count, | |
348 | struct obj_section); | |
349 | objfile->sections_end = (objfile->sections + count); | |
f1f6aadf PA |
350 | bfd_map_over_sections (objfile->obfd, |
351 | add_to_objfile_sections, (void *) objfile); | |
65cf3563 TT |
352 | |
353 | /* See gdb_bfd_section_index. */ | |
354 | add_to_objfile_sections_full (objfile->obfd, bfd_com_section_ptr, objfile, 1); | |
355 | add_to_objfile_sections_full (objfile->obfd, bfd_und_section_ptr, objfile, 1); | |
356 | add_to_objfile_sections_full (objfile->obfd, bfd_abs_section_ptr, objfile, 1); | |
357 | add_to_objfile_sections_full (objfile->obfd, bfd_ind_section_ptr, objfile, 1); | |
c906108c SS |
358 | } |
359 | ||
9e86da07 TT |
360 | /* Given a pointer to an initialized bfd (ABFD) and some flag bits, |
361 | initialize the new objfile as best we can and link it into the list | |
362 | of all known objfiles. | |
c906108c | 363 | |
24ba069a JK |
364 | NAME should contain original non-canonicalized filename or other |
365 | identifier as entered by user. If there is no better source use | |
366 | bfd_get_filename (ABFD). NAME may be NULL only if ABFD is NULL. | |
367 | NAME content is copied into returned objfile. | |
368 | ||
2df3850c | 369 | The FLAGS word contains various bits (OBJF_*) that can be taken as |
78a4a9b9 | 370 | requests for specific operations. Other bits like OBJF_SHARED are |
0df8b418 | 371 | simply copied through to the new objfile flags member. */ |
c906108c | 372 | |
9e86da07 TT |
373 | objfile::objfile (bfd *abfd, const char *name, objfile_flags flags_) |
374 | : flags (flags_), | |
375 | pspace (current_program_space), | |
376 | obfd (abfd), | |
377 | psymbol_cache (psymbol_bcache_init ()) | |
c906108c | 378 | { |
14278e1f | 379 | const char *expanded_name; |
c906108c | 380 | |
2f6e5d7e TG |
381 | /* We could use obstack_specify_allocation here instead, but |
382 | gdb_obstack.h specifies the alloc/dealloc functions. */ | |
9e86da07 | 383 | obstack_init (&objfile_obstack); |
c906108c | 384 | |
9e86da07 | 385 | objfile_alloc_data (this); |
0d0e1a63 | 386 | |
e3e41d58 | 387 | gdb::unique_xmalloc_ptr<char> name_holder; |
24ba069a JK |
388 | if (name == NULL) |
389 | { | |
390 | gdb_assert (abfd == NULL); | |
40135bb1 | 391 | gdb_assert ((flags & OBJF_NOT_FILENAME) != 0); |
e3e41d58 | 392 | expanded_name = "<<anonymous objfile>>"; |
24ba069a | 393 | } |
5fbae7d1 GB |
394 | else if ((flags & OBJF_NOT_FILENAME) != 0 |
395 | || is_target_filename (name)) | |
e3e41d58 | 396 | expanded_name = name; |
04affae3 | 397 | else |
e3e41d58 TT |
398 | { |
399 | name_holder = gdb_abspath (name); | |
400 | expanded_name = name_holder.get (); | |
401 | } | |
9e86da07 TT |
402 | original_name |
403 | = (char *) obstack_copy0 (&objfile_obstack, | |
224c3ddb SM |
404 | expanded_name, |
405 | strlen (expanded_name)); | |
04affae3 | 406 | |
d3e81981 DE |
407 | /* Update the per-objfile information that comes from the bfd, ensuring |
408 | that any data that is reference is saved in the per-objfile data | |
409 | region. */ | |
410 | ||
8ac244b4 | 411 | gdb_bfd_ref (abfd); |
c906108c SS |
412 | if (abfd != NULL) |
413 | { | |
9e86da07 | 414 | mtime = bfd_get_mtime (abfd); |
c906108c SS |
415 | |
416 | /* Build section table. */ | |
9e86da07 | 417 | build_objfile_section_table (this); |
c906108c SS |
418 | } |
419 | ||
9e86da07 | 420 | per_bfd = get_objfile_bfd_data (this, abfd); |
34643a32 | 421 | |
9e86da07 | 422 | terminate_minimal_symbol_table (this); |
5c4e30ca | 423 | |
0df8b418 | 424 | /* Add this file onto the tail of the linked list of other such files. */ |
c906108c | 425 | |
c906108c | 426 | if (object_files == NULL) |
9e86da07 | 427 | object_files = this; |
c906108c SS |
428 | else |
429 | { | |
2f6e5d7e TG |
430 | struct objfile *last_one; |
431 | ||
c906108c | 432 | for (last_one = object_files; |
c5aa993b JM |
433 | last_one->next; |
434 | last_one = last_one->next); | |
9e86da07 | 435 | last_one->next = this; |
c906108c SS |
436 | } |
437 | ||
6c95b8df | 438 | /* Rebuild section map next time we need it. */ |
9e86da07 | 439 | get_objfile_pspace_data (pspace)->new_objfiles_available = 1; |
c906108c SS |
440 | } |
441 | ||
5e2b427d | 442 | /* Retrieve the gdbarch associated with OBJFILE. */ |
9c1877ea | 443 | |
5e2b427d | 444 | struct gdbarch * |
9c1877ea | 445 | get_objfile_arch (const struct objfile *objfile) |
5e2b427d | 446 | { |
df6d5441 | 447 | return objfile->per_bfd->gdbarch; |
5e2b427d UW |
448 | } |
449 | ||
abd0a5fa JK |
450 | /* If there is a valid and known entry point, function fills *ENTRY_P with it |
451 | and returns non-zero; otherwise it returns zero. */ | |
9ab9195f | 452 | |
abd0a5fa JK |
453 | int |
454 | entry_point_address_query (CORE_ADDR *entry_p) | |
9ab9195f | 455 | { |
6ef55de7 | 456 | if (symfile_objfile == NULL || !symfile_objfile->per_bfd->ei.entry_point_p) |
3612b192 DJ |
457 | return 0; |
458 | ||
6ef55de7 | 459 | *entry_p = (symfile_objfile->per_bfd->ei.entry_point |
53eddfa6 | 460 | + ANOFFSET (symfile_objfile->section_offsets, |
6ef55de7 | 461 | symfile_objfile->per_bfd->ei.the_bfd_section_index)); |
3612b192 | 462 | |
abd0a5fa JK |
463 | return 1; |
464 | } | |
465 | ||
466 | /* Get current entry point address. Call error if it is not known. */ | |
467 | ||
468 | CORE_ADDR | |
469 | entry_point_address (void) | |
470 | { | |
471 | CORE_ADDR retval; | |
472 | ||
473 | if (!entry_point_address_query (&retval)) | |
474 | error (_("Entry point address is not known.")); | |
475 | ||
476 | return retval; | |
9ab9195f | 477 | } |
15831452 | 478 | |
15d123c9 TG |
479 | /* Iterator on PARENT and every separate debug objfile of PARENT. |
480 | The usage pattern is: | |
481 | for (objfile = parent; | |
482 | objfile; | |
483 | objfile = objfile_separate_debug_iterate (parent, objfile)) | |
484 | ... | |
485 | */ | |
486 | ||
487 | struct objfile * | |
488 | objfile_separate_debug_iterate (const struct objfile *parent, | |
489 | const struct objfile *objfile) | |
490 | { | |
491 | struct objfile *res; | |
492 | ||
399f313b | 493 | /* If any, return the first child. */ |
15d123c9 TG |
494 | res = objfile->separate_debug_objfile; |
495 | if (res) | |
496 | return res; | |
497 | ||
15d123c9 TG |
498 | /* Common case where there is no separate debug objfile. */ |
499 | if (objfile == parent) | |
500 | return NULL; | |
501 | ||
399f313b TG |
502 | /* Return the brother if any. Note that we don't iterate on brothers of |
503 | the parents. */ | |
504 | res = objfile->separate_debug_objfile_link; | |
505 | if (res) | |
506 | return res; | |
507 | ||
15d123c9 TG |
508 | for (res = objfile->separate_debug_objfile_backlink; |
509 | res != parent; | |
510 | res = res->separate_debug_objfile_backlink) | |
511 | { | |
512 | gdb_assert (res != NULL); | |
513 | if (res->separate_debug_objfile_link) | |
514 | return res->separate_debug_objfile_link; | |
515 | } | |
516 | return NULL; | |
517 | } | |
15831452 | 518 | |
5b5d99cf JB |
519 | /* Put one object file before a specified on in the global list. |
520 | This can be used to make sure an object file is destroyed before | |
0df8b418 | 521 | another when using ALL_OBJFILES_SAFE to free all objfiles. */ |
5b5d99cf JB |
522 | void |
523 | put_objfile_before (struct objfile *objfile, struct objfile *before_this) | |
524 | { | |
525 | struct objfile **objp; | |
526 | ||
527 | unlink_objfile (objfile); | |
528 | ||
529 | for (objp = &object_files; *objp != NULL; objp = &((*objp)->next)) | |
530 | { | |
531 | if (*objp == before_this) | |
532 | { | |
533 | objfile->next = *objp; | |
534 | *objp = objfile; | |
535 | return; | |
536 | } | |
537 | } | |
538 | ||
539 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 540 | _("put_objfile_before: before objfile not in list")); |
5b5d99cf JB |
541 | } |
542 | ||
c906108c SS |
543 | /* Unlink OBJFILE from the list of known objfiles, if it is found in the |
544 | list. | |
545 | ||
546 | It is not a bug, or error, to call this function if OBJFILE is not known | |
547 | to be in the current list. This is done in the case of mapped objfiles, | |
548 | for example, just to ensure that the mapped objfile doesn't appear twice | |
549 | in the list. Since the list is threaded, linking in a mapped objfile | |
550 | twice would create a circular list. | |
551 | ||
552 | If OBJFILE turns out to be in the list, we zap it's NEXT pointer after | |
553 | unlinking it, just to ensure that we have completely severed any linkages | |
0df8b418 | 554 | between the OBJFILE and the list. */ |
c906108c SS |
555 | |
556 | void | |
fba45db2 | 557 | unlink_objfile (struct objfile *objfile) |
c906108c | 558 | { |
c5aa993b | 559 | struct objfile **objpp; |
c906108c | 560 | |
c5aa993b | 561 | for (objpp = &object_files; *objpp != NULL; objpp = &((*objpp)->next)) |
c906108c | 562 | { |
c5aa993b | 563 | if (*objpp == objfile) |
c906108c | 564 | { |
c5aa993b JM |
565 | *objpp = (*objpp)->next; |
566 | objfile->next = NULL; | |
07cd4b97 | 567 | return; |
c906108c SS |
568 | } |
569 | } | |
07cd4b97 | 570 | |
8e65ff28 | 571 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 572 | _("unlink_objfile: objfile already unlinked")); |
c906108c SS |
573 | } |
574 | ||
15d123c9 TG |
575 | /* Add OBJFILE as a separate debug objfile of PARENT. */ |
576 | ||
577 | void | |
578 | add_separate_debug_objfile (struct objfile *objfile, struct objfile *parent) | |
579 | { | |
580 | gdb_assert (objfile && parent); | |
581 | ||
582 | /* Must not be already in a list. */ | |
583 | gdb_assert (objfile->separate_debug_objfile_backlink == NULL); | |
584 | gdb_assert (objfile->separate_debug_objfile_link == NULL); | |
8a92335b JK |
585 | gdb_assert (objfile->separate_debug_objfile == NULL); |
586 | gdb_assert (parent->separate_debug_objfile_backlink == NULL); | |
587 | gdb_assert (parent->separate_debug_objfile_link == NULL); | |
15d123c9 TG |
588 | |
589 | objfile->separate_debug_objfile_backlink = parent; | |
590 | objfile->separate_debug_objfile_link = parent->separate_debug_objfile; | |
591 | parent->separate_debug_objfile = objfile; | |
592 | ||
593 | /* Put the separate debug object before the normal one, this is so that | |
0df8b418 | 594 | usage of the ALL_OBJFILES_SAFE macro will stay safe. */ |
15d123c9 TG |
595 | put_objfile_before (objfile, parent); |
596 | } | |
597 | ||
598 | /* Free all separate debug objfile of OBJFILE, but don't free OBJFILE | |
599 | itself. */ | |
600 | ||
601 | void | |
602 | free_objfile_separate_debug (struct objfile *objfile) | |
603 | { | |
604 | struct objfile *child; | |
605 | ||
606 | for (child = objfile->separate_debug_objfile; child;) | |
607 | { | |
608 | struct objfile *next_child = child->separate_debug_objfile_link; | |
9e86da07 | 609 | delete child; |
15d123c9 TG |
610 | child = next_child; |
611 | } | |
612 | } | |
c906108c | 613 | |
7580e917 | 614 | /* Destroy an objfile and all the symtabs and psymtabs under it. */ |
c906108c | 615 | |
9e86da07 | 616 | objfile::~objfile () |
c906108c | 617 | { |
63644780 | 618 | /* First notify observers that this objfile is about to be freed. */ |
9e86da07 | 619 | observer_notify_free_objfile (this); |
63644780 | 620 | |
15d123c9 | 621 | /* Free all separate debug objfiles. */ |
9e86da07 | 622 | free_objfile_separate_debug (this); |
15d123c9 | 623 | |
9e86da07 | 624 | if (separate_debug_objfile_backlink) |
5b5d99cf JB |
625 | { |
626 | /* We freed the separate debug file, make sure the base objfile | |
627 | doesn't reference it. */ | |
15d123c9 TG |
628 | struct objfile *child; |
629 | ||
9e86da07 | 630 | child = separate_debug_objfile_backlink->separate_debug_objfile; |
15d123c9 | 631 | |
9e86da07 | 632 | if (child == this) |
15d123c9 | 633 | { |
9e86da07 TT |
634 | /* THIS is the first child. */ |
635 | separate_debug_objfile_backlink->separate_debug_objfile = | |
636 | separate_debug_objfile_link; | |
15d123c9 TG |
637 | } |
638 | else | |
639 | { | |
9e86da07 | 640 | /* Find THIS in the list. */ |
15d123c9 TG |
641 | while (1) |
642 | { | |
9e86da07 | 643 | if (child->separate_debug_objfile_link == this) |
15d123c9 TG |
644 | { |
645 | child->separate_debug_objfile_link = | |
9e86da07 | 646 | separate_debug_objfile_link; |
15d123c9 TG |
647 | break; |
648 | } | |
649 | child = child->separate_debug_objfile_link; | |
650 | gdb_assert (child); | |
651 | } | |
652 | } | |
5b5d99cf | 653 | } |
9e86da07 | 654 | |
ae5a43e0 DJ |
655 | /* Remove any references to this objfile in the global value |
656 | lists. */ | |
9e86da07 | 657 | preserve_values (this); |
ae5a43e0 | 658 | |
9f743ef6 JK |
659 | /* It still may reference data modules have associated with the objfile and |
660 | the symbol file data. */ | |
9e86da07 | 661 | forget_cached_source_info_for_objfile (this); |
9f743ef6 | 662 | |
9e86da07 TT |
663 | breakpoint_free_objfile (this); |
664 | btrace_free_objfile (this); | |
2f202fde | 665 | |
c906108c SS |
666 | /* First do any symbol file specific actions required when we are |
667 | finished with a particular symbol file. Note that if the objfile | |
668 | is using reusable symbol information (via mmalloc) then each of | |
669 | these routines is responsible for doing the correct thing, either | |
670 | freeing things which are valid only during this particular gdb | |
0df8b418 | 671 | execution, or leaving them to be reused during the next one. */ |
c906108c | 672 | |
9e86da07 TT |
673 | if (sf != NULL) |
674 | (*sf->sym_finish) (this); | |
c906108c | 675 | |
9f743ef6 | 676 | /* Discard any data modules have associated with the objfile. The function |
9e86da07 TT |
677 | still may reference obfd. */ |
678 | objfile_free_data (this); | |
c5bc3a77 | 679 | |
9e86da07 TT |
680 | if (obfd) |
681 | gdb_bfd_unref (obfd); | |
706e3705 | 682 | else |
9e86da07 | 683 | free_objfile_per_bfd_storage (per_bfd); |
c906108c | 684 | |
0df8b418 | 685 | /* Remove it from the chain of all objfiles. */ |
c906108c | 686 | |
9e86da07 | 687 | unlink_objfile (this); |
c906108c | 688 | |
9e86da07 | 689 | if (this == symfile_objfile) |
adb7f338 | 690 | symfile_objfile = NULL; |
c906108c | 691 | |
c906108c SS |
692 | /* Before the symbol table code was redone to make it easier to |
693 | selectively load and remove information particular to a specific | |
694 | linkage unit, gdb used to do these things whenever the monolithic | |
695 | symbol table was blown away. How much still needs to be done | |
696 | is unknown, but we play it safe for now and keep each action until | |
0df8b418 | 697 | it is shown to be no longer needed. */ |
c5aa993b | 698 | |
cb5d864f FF |
699 | /* Not all our callers call clear_symtab_users (objfile_purge_solibs, |
700 | for example), so we need to call this here. */ | |
c906108c SS |
701 | clear_pc_function_cache (); |
702 | ||
9bdcbae7 DJ |
703 | /* Clear globals which might have pointed into a removed objfile. |
704 | FIXME: It's not clear which of these are supposed to persist | |
705 | between expressions and which ought to be reset each time. */ | |
706 | expression_context_block = NULL; | |
707 | innermost_block = NULL; | |
708 | ||
cb5d864f | 709 | /* Check to see if the current_source_symtab belongs to this objfile, |
0df8b418 | 710 | and if so, call clear_current_source_symtab_and_line. */ |
cb5d864f FF |
711 | |
712 | { | |
713 | struct symtab_and_line cursal = get_current_source_symtab_and_line (); | |
cb5d864f | 714 | |
9e86da07 | 715 | if (cursal.symtab && SYMTAB_OBJFILE (cursal.symtab) == this) |
00174a86 | 716 | clear_current_source_symtab_and_line (); |
cb5d864f FF |
717 | } |
718 | ||
0df8b418 | 719 | /* Free the obstacks for non-reusable objfiles. */ |
9e86da07 TT |
720 | psymbol_bcache_free (psymbol_cache); |
721 | obstack_free (&objfile_obstack, 0); | |
6c95b8df PA |
722 | |
723 | /* Rebuild section map next time we need it. */ | |
9e86da07 | 724 | get_objfile_pspace_data (pspace)->section_map_dirty = 1; |
6c95b8df | 725 | |
63e43d3a PMR |
726 | /* Free the map for static links. There's no need to free static link |
727 | themselves since they were allocated on the objstack. */ | |
9e86da07 TT |
728 | if (static_links != NULL) |
729 | htab_delete (static_links); | |
c906108c SS |
730 | } |
731 | ||
c906108c SS |
732 | /* Free all the object files at once and clean up their users. */ |
733 | ||
734 | void | |
fba45db2 | 735 | free_all_objfiles (void) |
c906108c SS |
736 | { |
737 | struct objfile *objfile, *temp; | |
0133421a JK |
738 | struct so_list *so; |
739 | ||
740 | /* Any objfile referencewould become stale. */ | |
741 | for (so = master_so_list (); so; so = so->next) | |
742 | gdb_assert (so->objfile == NULL); | |
c906108c SS |
743 | |
744 | ALL_OBJFILES_SAFE (objfile, temp) | |
c5aa993b | 745 | { |
9e86da07 | 746 | delete objfile; |
c5aa993b | 747 | } |
c1e56572 | 748 | clear_symtab_users (0); |
c906108c SS |
749 | } |
750 | \f | |
34eaf542 TT |
751 | /* A helper function for objfile_relocate1 that relocates a single |
752 | symbol. */ | |
753 | ||
754 | static void | |
755 | relocate_one_symbol (struct symbol *sym, struct objfile *objfile, | |
756 | struct section_offsets *delta) | |
757 | { | |
758 | fixup_symbol_section (sym, objfile); | |
759 | ||
760 | /* The RS6000 code from which this was taken skipped | |
761 | any symbols in STRUCT_DOMAIN or UNDEF_DOMAIN. | |
762 | But I'm leaving out that test, on the theory that | |
763 | they can't possibly pass the tests below. */ | |
764 | if ((SYMBOL_CLASS (sym) == LOC_LABEL | |
765 | || SYMBOL_CLASS (sym) == LOC_STATIC) | |
766 | && SYMBOL_SECTION (sym) >= 0) | |
767 | { | |
768 | SYMBOL_VALUE_ADDRESS (sym) += ANOFFSET (delta, SYMBOL_SECTION (sym)); | |
769 | } | |
770 | } | |
771 | ||
c906108c | 772 | /* Relocate OBJFILE to NEW_OFFSETS. There should be OBJFILE->NUM_SECTIONS |
b260e109 JK |
773 | entries in new_offsets. SEPARATE_DEBUG_OBJFILE is not touched here. |
774 | Return non-zero iff any change happened. */ | |
567995e1 | 775 | |
b260e109 | 776 | static int |
5cc80db3 | 777 | objfile_relocate1 (struct objfile *objfile, |
3189cb12 | 778 | const struct section_offsets *new_offsets) |
c906108c | 779 | { |
30510692 | 780 | struct obj_section *s; |
d4f3574e | 781 | struct section_offsets *delta = |
a39a16c4 MM |
782 | ((struct section_offsets *) |
783 | alloca (SIZEOF_N_SECTION_OFFSETS (objfile->num_sections))); | |
c906108c | 784 | |
5cc80db3 MS |
785 | int i; |
786 | int something_changed = 0; | |
787 | ||
788 | for (i = 0; i < objfile->num_sections; ++i) | |
789 | { | |
790 | delta->offsets[i] = | |
791 | ANOFFSET (new_offsets, i) - ANOFFSET (objfile->section_offsets, i); | |
792 | if (ANOFFSET (delta, i) != 0) | |
793 | something_changed = 1; | |
794 | } | |
795 | if (!something_changed) | |
796 | return 0; | |
c906108c SS |
797 | |
798 | /* OK, get all the symtabs. */ | |
799 | { | |
43f3e411 | 800 | struct compunit_symtab *cust; |
c906108c SS |
801 | struct symtab *s; |
802 | ||
43f3e411 | 803 | ALL_OBJFILE_FILETABS (objfile, cust, s) |
c5aa993b JM |
804 | { |
805 | struct linetable *l; | |
c5aa993b JM |
806 | int i; |
807 | ||
808 | /* First the line table. */ | |
8435453b | 809 | l = SYMTAB_LINETABLE (s); |
c5aa993b JM |
810 | if (l) |
811 | { | |
812 | for (i = 0; i < l->nitems; ++i) | |
43f3e411 DE |
813 | l->item[i].pc += ANOFFSET (delta, |
814 | COMPUNIT_BLOCK_LINE_SECTION | |
815 | (cust)); | |
c5aa993b | 816 | } |
43f3e411 | 817 | } |
c906108c | 818 | |
43f3e411 DE |
819 | ALL_OBJFILE_COMPUNITS (objfile, cust) |
820 | { | |
821 | const struct blockvector *bv = COMPUNIT_BLOCKVECTOR (cust); | |
822 | int block_line_section = COMPUNIT_BLOCK_LINE_SECTION (cust); | |
c906108c | 823 | |
b101f7a1 UW |
824 | if (BLOCKVECTOR_MAP (bv)) |
825 | addrmap_relocate (BLOCKVECTOR_MAP (bv), | |
43f3e411 | 826 | ANOFFSET (delta, block_line_section)); |
b101f7a1 | 827 | |
c5aa993b JM |
828 | for (i = 0; i < BLOCKVECTOR_NBLOCKS (bv); ++i) |
829 | { | |
830 | struct block *b; | |
e88c90f2 | 831 | struct symbol *sym; |
de4f826b | 832 | struct dict_iterator iter; |
c5aa993b JM |
833 | |
834 | b = BLOCKVECTOR_BLOCK (bv, i); | |
43f3e411 DE |
835 | BLOCK_START (b) += ANOFFSET (delta, block_line_section); |
836 | BLOCK_END (b) += ANOFFSET (delta, block_line_section); | |
c5aa993b | 837 | |
8157b174 TT |
838 | /* We only want to iterate over the local symbols, not any |
839 | symbols in included symtabs. */ | |
840 | ALL_DICT_SYMBOLS (BLOCK_DICT (b), iter, sym) | |
c5aa993b | 841 | { |
34eaf542 | 842 | relocate_one_symbol (sym, objfile, delta); |
c5aa993b JM |
843 | } |
844 | } | |
845 | } | |
c906108c SS |
846 | } |
847 | ||
34eaf542 TT |
848 | /* Relocate isolated symbols. */ |
849 | { | |
850 | struct symbol *iter; | |
851 | ||
852 | for (iter = objfile->template_symbols; iter; iter = iter->hash_next) | |
853 | relocate_one_symbol (iter, objfile, delta); | |
854 | } | |
855 | ||
9b14d7aa JK |
856 | if (objfile->psymtabs_addrmap) |
857 | addrmap_relocate (objfile->psymtabs_addrmap, | |
858 | ANOFFSET (delta, SECT_OFF_TEXT (objfile))); | |
859 | ||
ccefe4c4 TT |
860 | if (objfile->sf) |
861 | objfile->sf->qf->relocate (objfile, new_offsets, delta); | |
c906108c | 862 | |
f1f2b5f4 PA |
863 | { |
864 | int i; | |
5cc80db3 | 865 | |
f1f2b5f4 PA |
866 | for (i = 0; i < objfile->num_sections; ++i) |
867 | (objfile->section_offsets)->offsets[i] = ANOFFSET (new_offsets, i); | |
868 | } | |
869 | ||
870 | /* Rebuild section map next time we need it. */ | |
607ece04 | 871 | get_objfile_pspace_data (objfile->pspace)->section_map_dirty = 1; |
f1f2b5f4 | 872 | |
30510692 DJ |
873 | /* Update the table in exec_ops, used to read memory. */ |
874 | ALL_OBJFILE_OSECTIONS (objfile, s) | |
875 | { | |
65cf3563 | 876 | int idx = s - objfile->sections; |
30510692 DJ |
877 | |
878 | exec_set_section_address (bfd_get_filename (objfile->obfd), idx, | |
f1f6aadf | 879 | obj_section_addr (s)); |
30510692 | 880 | } |
b260e109 JK |
881 | |
882 | /* Data changed. */ | |
883 | return 1; | |
567995e1 JK |
884 | } |
885 | ||
886 | /* Relocate OBJFILE to NEW_OFFSETS. There should be OBJFILE->NUM_SECTIONS | |
887 | entries in new_offsets. Process also OBJFILE's SEPARATE_DEBUG_OBJFILEs. | |
888 | ||
889 | The number and ordering of sections does differ between the two objfiles. | |
890 | Only their names match. Also the file offsets will differ (objfile being | |
891 | possibly prelinked but separate_debug_objfile is probably not prelinked) but | |
892 | the in-memory absolute address as specified by NEW_OFFSETS must match both | |
893 | files. */ | |
894 | ||
895 | void | |
3189cb12 DE |
896 | objfile_relocate (struct objfile *objfile, |
897 | const struct section_offsets *new_offsets) | |
567995e1 JK |
898 | { |
899 | struct objfile *debug_objfile; | |
b260e109 | 900 | int changed = 0; |
567995e1 | 901 | |
b260e109 | 902 | changed |= objfile_relocate1 (objfile, new_offsets); |
567995e1 JK |
903 | |
904 | for (debug_objfile = objfile->separate_debug_objfile; | |
905 | debug_objfile; | |
906 | debug_objfile = objfile_separate_debug_iterate (objfile, debug_objfile)) | |
907 | { | |
908 | struct section_addr_info *objfile_addrs; | |
567995e1 JK |
909 | struct cleanup *my_cleanups; |
910 | ||
911 | objfile_addrs = build_section_addr_info_from_objfile (objfile); | |
912 | my_cleanups = make_cleanup (xfree, objfile_addrs); | |
913 | ||
914 | /* Here OBJFILE_ADDRS contain the correct absolute addresses, the | |
915 | relative ones must be already created according to debug_objfile. */ | |
916 | ||
917 | addr_info_make_relative (objfile_addrs, debug_objfile->obfd); | |
918 | ||
919 | gdb_assert (debug_objfile->num_sections | |
d445b2f6 | 920 | == gdb_bfd_count_sections (debug_objfile->obfd)); |
cfe826d4 TT |
921 | std::vector<struct section_offsets> |
922 | new_debug_offsets (SIZEOF_N_SECTION_OFFSETS (debug_objfile->num_sections)); | |
923 | relative_addr_info_to_section_offsets (new_debug_offsets.data (), | |
567995e1 JK |
924 | debug_objfile->num_sections, |
925 | objfile_addrs); | |
926 | ||
cfe826d4 | 927 | changed |= objfile_relocate1 (debug_objfile, new_debug_offsets.data ()); |
567995e1 JK |
928 | |
929 | do_cleanups (my_cleanups); | |
930 | } | |
30510692 | 931 | |
0df8b418 | 932 | /* Relocate breakpoints as necessary, after things are relocated. */ |
b260e109 JK |
933 | if (changed) |
934 | breakpoint_re_set (); | |
c906108c | 935 | } |
4141a416 JB |
936 | |
937 | /* Rebase (add to the offsets) OBJFILE by SLIDE. SEPARATE_DEBUG_OBJFILE is | |
938 | not touched here. | |
939 | Return non-zero iff any change happened. */ | |
940 | ||
941 | static int | |
942 | objfile_rebase1 (struct objfile *objfile, CORE_ADDR slide) | |
943 | { | |
944 | struct section_offsets *new_offsets = | |
945 | ((struct section_offsets *) | |
946 | alloca (SIZEOF_N_SECTION_OFFSETS (objfile->num_sections))); | |
947 | int i; | |
948 | ||
949 | for (i = 0; i < objfile->num_sections; ++i) | |
950 | new_offsets->offsets[i] = slide; | |
951 | ||
952 | return objfile_relocate1 (objfile, new_offsets); | |
953 | } | |
954 | ||
955 | /* Rebase (add to the offsets) OBJFILE by SLIDE. Process also OBJFILE's | |
956 | SEPARATE_DEBUG_OBJFILEs. */ | |
957 | ||
958 | void | |
959 | objfile_rebase (struct objfile *objfile, CORE_ADDR slide) | |
960 | { | |
961 | struct objfile *debug_objfile; | |
962 | int changed = 0; | |
963 | ||
964 | changed |= objfile_rebase1 (objfile, slide); | |
965 | ||
966 | for (debug_objfile = objfile->separate_debug_objfile; | |
967 | debug_objfile; | |
968 | debug_objfile = objfile_separate_debug_iterate (objfile, debug_objfile)) | |
969 | changed |= objfile_rebase1 (debug_objfile, slide); | |
970 | ||
971 | /* Relocate breakpoints as necessary, after things are relocated. */ | |
972 | if (changed) | |
973 | breakpoint_re_set (); | |
974 | } | |
c906108c | 975 | \f |
55333a84 DE |
976 | /* Return non-zero if OBJFILE has partial symbols. */ |
977 | ||
978 | int | |
979 | objfile_has_partial_symbols (struct objfile *objfile) | |
980 | { | |
b11896a5 TT |
981 | if (!objfile->sf) |
982 | return 0; | |
3e03848b JK |
983 | |
984 | /* If we have not read psymbols, but we have a function capable of reading | |
985 | them, then that is an indication that they are in fact available. Without | |
986 | this function the symbols may have been already read in but they also may | |
987 | not be present in this objfile. */ | |
988 | if ((objfile->flags & OBJF_PSYMTABS_READ) == 0 | |
989 | && objfile->sf->sym_read_psymbols != NULL) | |
990 | return 1; | |
991 | ||
b11896a5 | 992 | return objfile->sf->qf->has_symbols (objfile); |
55333a84 DE |
993 | } |
994 | ||
995 | /* Return non-zero if OBJFILE has full symbols. */ | |
996 | ||
997 | int | |
998 | objfile_has_full_symbols (struct objfile *objfile) | |
999 | { | |
43f3e411 | 1000 | return objfile->compunit_symtabs != NULL; |
55333a84 DE |
1001 | } |
1002 | ||
e361b228 | 1003 | /* Return non-zero if OBJFILE has full or partial symbols, either directly |
15d123c9 | 1004 | or through a separate debug file. */ |
e361b228 TG |
1005 | |
1006 | int | |
1007 | objfile_has_symbols (struct objfile *objfile) | |
1008 | { | |
15d123c9 | 1009 | struct objfile *o; |
e361b228 | 1010 | |
15d123c9 TG |
1011 | for (o = objfile; o; o = objfile_separate_debug_iterate (objfile, o)) |
1012 | if (objfile_has_partial_symbols (o) || objfile_has_full_symbols (o)) | |
1013 | return 1; | |
e361b228 TG |
1014 | return 0; |
1015 | } | |
1016 | ||
1017 | ||
c906108c SS |
1018 | /* Many places in gdb want to test just to see if we have any partial |
1019 | symbols available. This function returns zero if none are currently | |
0df8b418 | 1020 | available, nonzero otherwise. */ |
c906108c SS |
1021 | |
1022 | int | |
fba45db2 | 1023 | have_partial_symbols (void) |
c906108c SS |
1024 | { |
1025 | struct objfile *ofp; | |
1026 | ||
1027 | ALL_OBJFILES (ofp) | |
c5aa993b | 1028 | { |
55333a84 DE |
1029 | if (objfile_has_partial_symbols (ofp)) |
1030 | return 1; | |
c5aa993b | 1031 | } |
c906108c SS |
1032 | return 0; |
1033 | } | |
1034 | ||
1035 | /* Many places in gdb want to test just to see if we have any full | |
1036 | symbols available. This function returns zero if none are currently | |
0df8b418 | 1037 | available, nonzero otherwise. */ |
c906108c SS |
1038 | |
1039 | int | |
fba45db2 | 1040 | have_full_symbols (void) |
c906108c SS |
1041 | { |
1042 | struct objfile *ofp; | |
1043 | ||
1044 | ALL_OBJFILES (ofp) | |
c5aa993b | 1045 | { |
55333a84 DE |
1046 | if (objfile_has_full_symbols (ofp)) |
1047 | return 1; | |
c5aa993b | 1048 | } |
c906108c SS |
1049 | return 0; |
1050 | } | |
1051 | ||
1052 | ||
1053 | /* This operations deletes all objfile entries that represent solibs that | |
1054 | weren't explicitly loaded by the user, via e.g., the add-symbol-file | |
0df8b418 MS |
1055 | command. */ |
1056 | ||
c906108c | 1057 | void |
fba45db2 | 1058 | objfile_purge_solibs (void) |
c906108c | 1059 | { |
c5aa993b JM |
1060 | struct objfile *objf; |
1061 | struct objfile *temp; | |
c906108c SS |
1062 | |
1063 | ALL_OBJFILES_SAFE (objf, temp) | |
1064 | { | |
1065 | /* We assume that the solib package has been purged already, or will | |
0df8b418 MS |
1066 | be soon. */ |
1067 | ||
2df3850c | 1068 | if (!(objf->flags & OBJF_USERLOADED) && (objf->flags & OBJF_SHARED)) |
9e86da07 | 1069 | delete objf; |
c906108c SS |
1070 | } |
1071 | } | |
1072 | ||
1073 | ||
1074 | /* Many places in gdb want to test just to see if we have any minimal | |
1075 | symbols available. This function returns zero if none are currently | |
0df8b418 | 1076 | available, nonzero otherwise. */ |
c906108c SS |
1077 | |
1078 | int | |
fba45db2 | 1079 | have_minimal_symbols (void) |
c906108c SS |
1080 | { |
1081 | struct objfile *ofp; | |
1082 | ||
1083 | ALL_OBJFILES (ofp) | |
c5aa993b | 1084 | { |
34643a32 | 1085 | if (ofp->per_bfd->minimal_symbol_count > 0) |
c5aa993b JM |
1086 | { |
1087 | return 1; | |
1088 | } | |
1089 | } | |
c906108c SS |
1090 | return 0; |
1091 | } | |
1092 | ||
a845f5cb PP |
1093 | /* Qsort comparison function. */ |
1094 | ||
1095 | static int | |
1096 | qsort_cmp (const void *a, const void *b) | |
1097 | { | |
1098 | const struct obj_section *sect1 = *(const struct obj_section **) a; | |
1099 | const struct obj_section *sect2 = *(const struct obj_section **) b; | |
1100 | const CORE_ADDR sect1_addr = obj_section_addr (sect1); | |
1101 | const CORE_ADDR sect2_addr = obj_section_addr (sect2); | |
1102 | ||
1103 | if (sect1_addr < sect2_addr) | |
6fbf07cd | 1104 | return -1; |
a845f5cb | 1105 | else if (sect1_addr > sect2_addr) |
6fbf07cd PP |
1106 | return 1; |
1107 | else | |
5cc80db3 MS |
1108 | { |
1109 | /* Sections are at the same address. This could happen if | |
1110 | A) we have an objfile and a separate debuginfo. | |
1111 | B) we are confused, and have added sections without proper relocation, | |
0df8b418 | 1112 | or something like that. */ |
5cc80db3 MS |
1113 | |
1114 | const struct objfile *const objfile1 = sect1->objfile; | |
1115 | const struct objfile *const objfile2 = sect2->objfile; | |
1116 | ||
1117 | if (objfile1->separate_debug_objfile == objfile2 | |
1118 | || objfile2->separate_debug_objfile == objfile1) | |
1119 | { | |
1120 | /* Case A. The ordering doesn't matter: separate debuginfo files | |
1121 | will be filtered out later. */ | |
1122 | ||
1123 | return 0; | |
1124 | } | |
1125 | ||
1126 | /* Case B. Maintain stable sort order, so bugs in GDB are easier to | |
1127 | triage. This section could be slow (since we iterate over all | |
1128 | objfiles in each call to qsort_cmp), but this shouldn't happen | |
1129 | very often (GDB is already in a confused state; one hopes this | |
1130 | doesn't happen at all). If you discover that significant time is | |
1131 | spent in the loops below, do 'set complaints 100' and examine the | |
1132 | resulting complaints. */ | |
1133 | ||
1134 | if (objfile1 == objfile2) | |
1135 | { | |
1136 | /* Both sections came from the same objfile. We are really confused. | |
1137 | Sort on sequence order of sections within the objfile. */ | |
1138 | ||
1139 | const struct obj_section *osect; | |
1140 | ||
1141 | ALL_OBJFILE_OSECTIONS (objfile1, osect) | |
1142 | if (osect == sect1) | |
1143 | return -1; | |
1144 | else if (osect == sect2) | |
1145 | return 1; | |
1146 | ||
1147 | /* We should have found one of the sections before getting here. */ | |
f3574227 | 1148 | gdb_assert_not_reached ("section not found"); |
5cc80db3 MS |
1149 | } |
1150 | else | |
1151 | { | |
1152 | /* Sort on sequence number of the objfile in the chain. */ | |
1153 | ||
1154 | const struct objfile *objfile; | |
1155 | ||
1156 | ALL_OBJFILES (objfile) | |
1157 | if (objfile == objfile1) | |
1158 | return -1; | |
1159 | else if (objfile == objfile2) | |
1160 | return 1; | |
1161 | ||
1162 | /* We should have found one of the objfiles before getting here. */ | |
f3574227 | 1163 | gdb_assert_not_reached ("objfile not found"); |
5cc80db3 MS |
1164 | } |
1165 | } | |
6fbf07cd PP |
1166 | |
1167 | /* Unreachable. */ | |
f3574227 | 1168 | gdb_assert_not_reached ("unexpected code path"); |
a845f5cb PP |
1169 | return 0; |
1170 | } | |
1171 | ||
3aad21cf PP |
1172 | /* Select "better" obj_section to keep. We prefer the one that came from |
1173 | the real object, rather than the one from separate debuginfo. | |
1174 | Most of the time the two sections are exactly identical, but with | |
1175 | prelinking the .rel.dyn section in the real object may have different | |
1176 | size. */ | |
1177 | ||
1178 | static struct obj_section * | |
1179 | preferred_obj_section (struct obj_section *a, struct obj_section *b) | |
1180 | { | |
1181 | gdb_assert (obj_section_addr (a) == obj_section_addr (b)); | |
1182 | gdb_assert ((a->objfile->separate_debug_objfile == b->objfile) | |
1183 | || (b->objfile->separate_debug_objfile == a->objfile)); | |
1184 | gdb_assert ((a->objfile->separate_debug_objfile_backlink == b->objfile) | |
1185 | || (b->objfile->separate_debug_objfile_backlink == a->objfile)); | |
1186 | ||
1187 | if (a->objfile->separate_debug_objfile != NULL) | |
1188 | return a; | |
1189 | return b; | |
1190 | } | |
1191 | ||
6fbf07cd PP |
1192 | /* Return 1 if SECTION should be inserted into the section map. |
1193 | We want to insert only non-overlay and non-TLS section. */ | |
1194 | ||
1195 | static int | |
1196 | insert_section_p (const struct bfd *abfd, | |
1197 | const struct bfd_section *section) | |
1198 | { | |
1199 | const bfd_vma lma = bfd_section_lma (abfd, section); | |
1200 | ||
50f8ea94 | 1201 | if (overlay_debugging && lma != 0 && lma != bfd_section_vma (abfd, section) |
6fbf07cd PP |
1202 | && (bfd_get_file_flags (abfd) & BFD_IN_MEMORY) == 0) |
1203 | /* This is an overlay section. IN_MEMORY check is needed to avoid | |
1204 | discarding sections from the "system supplied DSO" (aka vdso) | |
1205 | on some Linux systems (e.g. Fedora 11). */ | |
1206 | return 0; | |
1207 | if ((bfd_get_section_flags (abfd, section) & SEC_THREAD_LOCAL) != 0) | |
1208 | /* This is a TLS section. */ | |
1209 | return 0; | |
1210 | ||
1211 | return 1; | |
1212 | } | |
1213 | ||
1214 | /* Filter out overlapping sections where one section came from the real | |
1215 | objfile, and the other from a separate debuginfo file. | |
1216 | Return the size of table after redundant sections have been eliminated. */ | |
1217 | ||
1218 | static int | |
1219 | filter_debuginfo_sections (struct obj_section **map, int map_size) | |
1220 | { | |
1221 | int i, j; | |
1222 | ||
1223 | for (i = 0, j = 0; i < map_size - 1; i++) | |
1224 | { | |
1225 | struct obj_section *const sect1 = map[i]; | |
1226 | struct obj_section *const sect2 = map[i + 1]; | |
1227 | const struct objfile *const objfile1 = sect1->objfile; | |
1228 | const struct objfile *const objfile2 = sect2->objfile; | |
1229 | const CORE_ADDR sect1_addr = obj_section_addr (sect1); | |
1230 | const CORE_ADDR sect2_addr = obj_section_addr (sect2); | |
1231 | ||
1232 | if (sect1_addr == sect2_addr | |
1233 | && (objfile1->separate_debug_objfile == objfile2 | |
1234 | || objfile2->separate_debug_objfile == objfile1)) | |
1235 | { | |
1236 | map[j++] = preferred_obj_section (sect1, sect2); | |
1237 | ++i; | |
1238 | } | |
1239 | else | |
1240 | map[j++] = sect1; | |
1241 | } | |
1242 | ||
1243 | if (i < map_size) | |
1244 | { | |
1245 | gdb_assert (i == map_size - 1); | |
1246 | map[j++] = map[i]; | |
1247 | } | |
1248 | ||
1249 | /* The map should not have shrunk to less than half the original size. */ | |
1250 | gdb_assert (map_size / 2 <= j); | |
1251 | ||
1252 | return j; | |
1253 | } | |
1254 | ||
1255 | /* Filter out overlapping sections, issuing a warning if any are found. | |
1256 | Overlapping sections could really be overlay sections which we didn't | |
1257 | classify as such in insert_section_p, or we could be dealing with a | |
1258 | corrupt binary. */ | |
1259 | ||
1260 | static int | |
1261 | filter_overlapping_sections (struct obj_section **map, int map_size) | |
1262 | { | |
1263 | int i, j; | |
1264 | ||
1265 | for (i = 0, j = 0; i < map_size - 1; ) | |
1266 | { | |
1267 | int k; | |
1268 | ||
1269 | map[j++] = map[i]; | |
1270 | for (k = i + 1; k < map_size; k++) | |
1271 | { | |
1272 | struct obj_section *const sect1 = map[i]; | |
1273 | struct obj_section *const sect2 = map[k]; | |
1274 | const CORE_ADDR sect1_addr = obj_section_addr (sect1); | |
1275 | const CORE_ADDR sect2_addr = obj_section_addr (sect2); | |
1276 | const CORE_ADDR sect1_endaddr = obj_section_endaddr (sect1); | |
1277 | ||
1278 | gdb_assert (sect1_addr <= sect2_addr); | |
1279 | ||
1280 | if (sect1_endaddr <= sect2_addr) | |
1281 | break; | |
1282 | else | |
1283 | { | |
1284 | /* We have an overlap. Report it. */ | |
1285 | ||
1286 | struct objfile *const objf1 = sect1->objfile; | |
1287 | struct objfile *const objf2 = sect2->objfile; | |
1288 | ||
6fbf07cd PP |
1289 | const struct bfd_section *const bfds1 = sect1->the_bfd_section; |
1290 | const struct bfd_section *const bfds2 = sect2->the_bfd_section; | |
1291 | ||
1292 | const CORE_ADDR sect2_endaddr = obj_section_endaddr (sect2); | |
1293 | ||
1294 | struct gdbarch *const gdbarch = get_objfile_arch (objf1); | |
1295 | ||
1296 | complaint (&symfile_complaints, | |
1297 | _("unexpected overlap between:\n" | |
1298 | " (A) section `%s' from `%s' [%s, %s)\n" | |
1299 | " (B) section `%s' from `%s' [%s, %s).\n" | |
1300 | "Will ignore section B"), | |
4262abfb | 1301 | bfd_section_name (abfd1, bfds1), objfile_name (objf1), |
6fbf07cd PP |
1302 | paddress (gdbarch, sect1_addr), |
1303 | paddress (gdbarch, sect1_endaddr), | |
4262abfb | 1304 | bfd_section_name (abfd2, bfds2), objfile_name (objf2), |
6fbf07cd PP |
1305 | paddress (gdbarch, sect2_addr), |
1306 | paddress (gdbarch, sect2_endaddr)); | |
1307 | } | |
1308 | } | |
1309 | i = k; | |
1310 | } | |
1311 | ||
1312 | if (i < map_size) | |
1313 | { | |
1314 | gdb_assert (i == map_size - 1); | |
1315 | map[j++] = map[i]; | |
1316 | } | |
1317 | ||
1318 | return j; | |
1319 | } | |
1320 | ||
1321 | ||
1322 | /* Update PMAP, PMAP_SIZE with sections from all objfiles, excluding any | |
1323 | TLS, overlay and overlapping sections. */ | |
a845f5cb PP |
1324 | |
1325 | static void | |
6c95b8df PA |
1326 | update_section_map (struct program_space *pspace, |
1327 | struct obj_section ***pmap, int *pmap_size) | |
a845f5cb | 1328 | { |
607ece04 | 1329 | struct objfile_pspace_info *pspace_info; |
6fbf07cd | 1330 | int alloc_size, map_size, i; |
a845f5cb PP |
1331 | struct obj_section *s, **map; |
1332 | struct objfile *objfile; | |
1333 | ||
607ece04 GB |
1334 | pspace_info = get_objfile_pspace_data (pspace); |
1335 | gdb_assert (pspace_info->section_map_dirty != 0 | |
1336 | || pspace_info->new_objfiles_available != 0); | |
a845f5cb PP |
1337 | |
1338 | map = *pmap; | |
1339 | xfree (map); | |
1340 | ||
6fbf07cd | 1341 | alloc_size = 0; |
6c95b8df PA |
1342 | ALL_PSPACE_OBJFILES (pspace, objfile) |
1343 | ALL_OBJFILE_OSECTIONS (objfile, s) | |
1344 | if (insert_section_p (objfile->obfd, s->the_bfd_section)) | |
1345 | alloc_size += 1; | |
a845f5cb | 1346 | |
65a97ab3 PP |
1347 | /* This happens on detach/attach (e.g. in gdb.base/attach.exp). */ |
1348 | if (alloc_size == 0) | |
1349 | { | |
1350 | *pmap = NULL; | |
1351 | *pmap_size = 0; | |
1352 | return; | |
1353 | } | |
1354 | ||
8d749320 | 1355 | map = XNEWVEC (struct obj_section *, alloc_size); |
a845f5cb | 1356 | |
3aad21cf | 1357 | i = 0; |
6c95b8df PA |
1358 | ALL_PSPACE_OBJFILES (pspace, objfile) |
1359 | ALL_OBJFILE_OSECTIONS (objfile, s) | |
1360 | if (insert_section_p (objfile->obfd, s->the_bfd_section)) | |
1361 | map[i++] = s; | |
a845f5cb | 1362 | |
6fbf07cd PP |
1363 | qsort (map, alloc_size, sizeof (*map), qsort_cmp); |
1364 | map_size = filter_debuginfo_sections(map, alloc_size); | |
1365 | map_size = filter_overlapping_sections(map, map_size); | |
a845f5cb | 1366 | |
6fbf07cd PP |
1367 | if (map_size < alloc_size) |
1368 | /* Some sections were eliminated. Trim excess space. */ | |
224c3ddb | 1369 | map = XRESIZEVEC (struct obj_section *, map, map_size); |
3aad21cf | 1370 | else |
6fbf07cd | 1371 | gdb_assert (alloc_size == map_size); |
3aad21cf | 1372 | |
a845f5cb PP |
1373 | *pmap = map; |
1374 | *pmap_size = map_size; | |
1375 | } | |
1376 | ||
0df8b418 | 1377 | /* Bsearch comparison function. */ |
a845f5cb PP |
1378 | |
1379 | static int | |
1380 | bsearch_cmp (const void *key, const void *elt) | |
1381 | { | |
1382 | const CORE_ADDR pc = *(CORE_ADDR *) key; | |
1383 | const struct obj_section *section = *(const struct obj_section **) elt; | |
1384 | ||
1385 | if (pc < obj_section_addr (section)) | |
1386 | return -1; | |
1387 | if (pc < obj_section_endaddr (section)) | |
1388 | return 0; | |
1389 | return 1; | |
1390 | } | |
1391 | ||
714835d5 | 1392 | /* Returns a section whose range includes PC or NULL if none found. */ |
c906108c SS |
1393 | |
1394 | struct obj_section * | |
714835d5 | 1395 | find_pc_section (CORE_ADDR pc) |
c906108c | 1396 | { |
6c95b8df | 1397 | struct objfile_pspace_info *pspace_info; |
a845f5cb | 1398 | struct obj_section *s, **sp; |
c5aa993b | 1399 | |
714835d5 UW |
1400 | /* Check for mapped overlay section first. */ |
1401 | s = find_pc_mapped_section (pc); | |
1402 | if (s) | |
1403 | return s; | |
c906108c | 1404 | |
6c95b8df | 1405 | pspace_info = get_objfile_pspace_data (current_program_space); |
607ece04 GB |
1406 | if (pspace_info->section_map_dirty |
1407 | || (pspace_info->new_objfiles_available | |
1408 | && !pspace_info->inhibit_updates)) | |
a845f5cb | 1409 | { |
6c95b8df PA |
1410 | update_section_map (current_program_space, |
1411 | &pspace_info->sections, | |
1412 | &pspace_info->num_sections); | |
c906108c | 1413 | |
6c95b8df PA |
1414 | /* Don't need updates to section map until objfiles are added, |
1415 | removed or relocated. */ | |
607ece04 GB |
1416 | pspace_info->new_objfiles_available = 0; |
1417 | pspace_info->section_map_dirty = 0; | |
a845f5cb PP |
1418 | } |
1419 | ||
65a97ab3 PP |
1420 | /* The C standard (ISO/IEC 9899:TC2) requires the BASE argument to |
1421 | bsearch be non-NULL. */ | |
1422 | if (pspace_info->sections == NULL) | |
1423 | { | |
1424 | gdb_assert (pspace_info->num_sections == 0); | |
1425 | return NULL; | |
1426 | } | |
1427 | ||
6c95b8df PA |
1428 | sp = (struct obj_section **) bsearch (&pc, |
1429 | pspace_info->sections, | |
1430 | pspace_info->num_sections, | |
1431 | sizeof (*pspace_info->sections), | |
1432 | bsearch_cmp); | |
a845f5cb PP |
1433 | if (sp != NULL) |
1434 | return *sp; | |
714835d5 | 1435 | return NULL; |
c906108c | 1436 | } |
c5aa993b | 1437 | |
c906108c | 1438 | |
3e5d3a5a | 1439 | /* Return non-zero if PC is in a section called NAME. */ |
c906108c SS |
1440 | |
1441 | int | |
a121b7c1 | 1442 | pc_in_section (CORE_ADDR pc, const char *name) |
c906108c SS |
1443 | { |
1444 | struct obj_section *s; | |
1445 | int retval = 0; | |
c5aa993b JM |
1446 | |
1447 | s = find_pc_section (pc); | |
1448 | ||
c906108c SS |
1449 | retval = (s != NULL |
1450 | && s->the_bfd_section->name != NULL | |
3e5d3a5a | 1451 | && strcmp (s->the_bfd_section->name, name) == 0); |
c5aa993b | 1452 | return (retval); |
c906108c | 1453 | } |
0d0e1a63 MK |
1454 | \f |
1455 | ||
607ece04 | 1456 | /* Set section_map_dirty so section map will be rebuilt next time it |
bb272892 | 1457 | is used. Called by reread_symbols. */ |
a845f5cb PP |
1458 | |
1459 | void | |
bb272892 | 1460 | objfiles_changed (void) |
a845f5cb | 1461 | { |
6c95b8df | 1462 | /* Rebuild section map next time we need it. */ |
607ece04 GB |
1463 | get_objfile_pspace_data (current_program_space)->section_map_dirty = 1; |
1464 | } | |
1465 | ||
1466 | /* See comments in objfiles.h. */ | |
1467 | ||
1468 | void | |
1469 | inhibit_section_map_updates (struct program_space *pspace) | |
1470 | { | |
1471 | get_objfile_pspace_data (pspace)->inhibit_updates = 1; | |
1472 | } | |
1473 | ||
1474 | /* See comments in objfiles.h. */ | |
1475 | ||
1476 | void | |
1477 | resume_section_map_updates (struct program_space *pspace) | |
1478 | { | |
1479 | get_objfile_pspace_data (pspace)->inhibit_updates = 0; | |
1480 | } | |
1481 | ||
1482 | /* See comments in objfiles.h. */ | |
1483 | ||
1484 | void | |
1485 | resume_section_map_updates_cleanup (void *arg) | |
1486 | { | |
19ba03f4 | 1487 | resume_section_map_updates ((struct program_space *) arg); |
a845f5cb | 1488 | } |
e3c69974 | 1489 | |
63644780 NB |
1490 | /* Return 1 if ADDR maps into one of the sections of OBJFILE and 0 |
1491 | otherwise. */ | |
1492 | ||
1493 | int | |
1494 | is_addr_in_objfile (CORE_ADDR addr, const struct objfile *objfile) | |
1495 | { | |
1496 | struct obj_section *osect; | |
1497 | ||
1498 | if (objfile == NULL) | |
1499 | return 0; | |
1500 | ||
1501 | ALL_OBJFILE_OSECTIONS (objfile, osect) | |
1502 | { | |
1503 | if (section_is_overlay (osect) && !section_is_mapped (osect)) | |
1504 | continue; | |
1505 | ||
1506 | if (obj_section_addr (osect) <= addr | |
1507 | && addr < obj_section_endaddr (osect)) | |
1508 | return 1; | |
1509 | } | |
1510 | return 0; | |
1511 | } | |
1512 | ||
08351840 | 1513 | int |
d03de421 PA |
1514 | shared_objfile_contains_address_p (struct program_space *pspace, |
1515 | CORE_ADDR address) | |
08351840 PA |
1516 | { |
1517 | struct objfile *objfile; | |
1518 | ||
1519 | ALL_PSPACE_OBJFILES (pspace, objfile) | |
1520 | { | |
d03de421 | 1521 | if ((objfile->flags & OBJF_SHARED) != 0 |
08351840 PA |
1522 | && is_addr_in_objfile (address, objfile)) |
1523 | return 1; | |
1524 | } | |
1525 | ||
1526 | return 0; | |
1527 | } | |
1528 | ||
19630284 JB |
1529 | /* The default implementation for the "iterate_over_objfiles_in_search_order" |
1530 | gdbarch method. It is equivalent to use the ALL_OBJFILES macro, | |
1531 | searching the objfiles in the order they are stored internally, | |
1532 | ignoring CURRENT_OBJFILE. | |
1533 | ||
1534 | On most platorms, it should be close enough to doing the best | |
1535 | we can without some knowledge specific to the architecture. */ | |
1536 | ||
1537 | void | |
1538 | default_iterate_over_objfiles_in_search_order | |
1539 | (struct gdbarch *gdbarch, | |
1540 | iterate_over_objfiles_in_search_order_cb_ftype *cb, | |
1541 | void *cb_data, struct objfile *current_objfile) | |
1542 | { | |
1543 | int stop = 0; | |
1544 | struct objfile *objfile; | |
1545 | ||
1546 | ALL_OBJFILES (objfile) | |
1547 | { | |
1548 | stop = cb (objfile, cb_data); | |
1549 | if (stop) | |
1550 | return; | |
1551 | } | |
1552 | } | |
1553 | ||
e02c96a7 | 1554 | /* See objfiles.h. */ |
4262abfb JK |
1555 | |
1556 | const char * | |
1557 | objfile_name (const struct objfile *objfile) | |
1558 | { | |
24ba069a JK |
1559 | if (objfile->obfd != NULL) |
1560 | return bfd_get_filename (objfile->obfd); | |
1561 | ||
4262abfb JK |
1562 | return objfile->original_name; |
1563 | } | |
1564 | ||
cc485e62 DE |
1565 | /* See objfiles.h. */ |
1566 | ||
e02c96a7 DE |
1567 | const char * |
1568 | objfile_filename (const struct objfile *objfile) | |
1569 | { | |
1570 | if (objfile->obfd != NULL) | |
1571 | return bfd_get_filename (objfile->obfd); | |
1572 | ||
1573 | return NULL; | |
1574 | } | |
1575 | ||
1576 | /* See objfiles.h. */ | |
1577 | ||
cc485e62 DE |
1578 | const char * |
1579 | objfile_debug_name (const struct objfile *objfile) | |
1580 | { | |
1581 | return lbasename (objfile->original_name); | |
1582 | } | |
1583 | ||
015d2e7e DE |
1584 | /* See objfiles.h. */ |
1585 | ||
1586 | const char * | |
1587 | objfile_flavour_name (struct objfile *objfile) | |
1588 | { | |
1589 | if (objfile->obfd != NULL) | |
1590 | return bfd_flavour_name (bfd_get_flavour (objfile->obfd)); | |
1591 | return NULL; | |
1592 | } | |
1593 | ||
6c95b8df PA |
1594 | void |
1595 | _initialize_objfiles (void) | |
1596 | { | |
1597 | objfiles_pspace_data | |
8e260fc0 TT |
1598 | = register_program_space_data_with_cleanup (NULL, |
1599 | objfiles_pspace_data_cleanup); | |
706e3705 TT |
1600 | |
1601 | objfiles_bfd_data = register_bfd_data_with_cleanup (NULL, | |
1602 | objfile_bfd_data_free); | |
6c95b8df | 1603 | } |