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 | ||
2df3850c JM |
360 | /* Given a pointer to an initialized bfd (ABFD) and some flag bits |
361 | allocate a new objfile struct, fill it in as best we can, link it | |
362 | into the list of all known objfiles, and return a pointer to the | |
363 | new objfile struct. | |
c906108c | 364 | |
24ba069a JK |
365 | NAME should contain original non-canonicalized filename or other |
366 | identifier as entered by user. If there is no better source use | |
367 | bfd_get_filename (ABFD). NAME may be NULL only if ABFD is NULL. | |
368 | NAME content is copied into returned objfile. | |
369 | ||
2df3850c | 370 | The FLAGS word contains various bits (OBJF_*) that can be taken as |
78a4a9b9 | 371 | requests for specific operations. Other bits like OBJF_SHARED are |
0df8b418 | 372 | simply copied through to the new objfile flags member. */ |
c906108c SS |
373 | |
374 | struct objfile * | |
b15cc25c | 375 | allocate_objfile (bfd *abfd, const char *name, objfile_flags flags) |
c906108c | 376 | { |
2f6e5d7e | 377 | struct objfile *objfile; |
14278e1f | 378 | const char *expanded_name; |
c906108c | 379 | |
8d749320 | 380 | objfile = XCNEW (struct objfile); |
710e1a31 | 381 | objfile->psymbol_cache = psymbol_bcache_init (); |
2f6e5d7e TG |
382 | /* We could use obstack_specify_allocation here instead, but |
383 | gdb_obstack.h specifies the alloc/dealloc functions. */ | |
384 | obstack_init (&objfile->objfile_obstack); | |
c906108c | 385 | |
0d0e1a63 MK |
386 | objfile_alloc_data (objfile); |
387 | ||
e3e41d58 | 388 | gdb::unique_xmalloc_ptr<char> name_holder; |
24ba069a JK |
389 | if (name == NULL) |
390 | { | |
391 | gdb_assert (abfd == NULL); | |
40135bb1 | 392 | gdb_assert ((flags & OBJF_NOT_FILENAME) != 0); |
e3e41d58 | 393 | expanded_name = "<<anonymous objfile>>"; |
24ba069a | 394 | } |
5fbae7d1 GB |
395 | else if ((flags & OBJF_NOT_FILENAME) != 0 |
396 | || is_target_filename (name)) | |
e3e41d58 | 397 | expanded_name = name; |
04affae3 | 398 | else |
e3e41d58 TT |
399 | { |
400 | name_holder = gdb_abspath (name); | |
401 | expanded_name = name_holder.get (); | |
402 | } | |
224c3ddb SM |
403 | objfile->original_name |
404 | = (char *) obstack_copy0 (&objfile->objfile_obstack, | |
405 | expanded_name, | |
406 | strlen (expanded_name)); | |
04affae3 | 407 | |
d3e81981 DE |
408 | /* Update the per-objfile information that comes from the bfd, ensuring |
409 | that any data that is reference is saved in the per-objfile data | |
410 | region. */ | |
411 | ||
cbb099e8 | 412 | objfile->obfd = abfd; |
8ac244b4 | 413 | gdb_bfd_ref (abfd); |
c906108c SS |
414 | if (abfd != NULL) |
415 | { | |
c5aa993b | 416 | objfile->mtime = bfd_get_mtime (abfd); |
c906108c SS |
417 | |
418 | /* Build section table. */ | |
d82ea6a8 | 419 | build_objfile_section_table (objfile); |
c906108c SS |
420 | } |
421 | ||
706e3705 | 422 | objfile->per_bfd = get_objfile_bfd_data (objfile, abfd); |
6c95b8df PA |
423 | objfile->pspace = current_program_space; |
424 | ||
34643a32 TT |
425 | terminate_minimal_symbol_table (objfile); |
426 | ||
b8fbeb18 | 427 | /* Initialize the section indexes for this objfile, so that we can |
0df8b418 | 428 | later detect if they are used w/o being properly assigned to. */ |
b8fbeb18 | 429 | |
5c4e30ca DC |
430 | objfile->sect_index_text = -1; |
431 | objfile->sect_index_data = -1; | |
432 | objfile->sect_index_bss = -1; | |
433 | objfile->sect_index_rodata = -1; | |
434 | ||
0df8b418 | 435 | /* Add this file onto the tail of the linked list of other such files. */ |
c906108c | 436 | |
c5aa993b | 437 | objfile->next = NULL; |
c906108c SS |
438 | if (object_files == NULL) |
439 | object_files = objfile; | |
440 | else | |
441 | { | |
2f6e5d7e TG |
442 | struct objfile *last_one; |
443 | ||
c906108c | 444 | for (last_one = object_files; |
c5aa993b JM |
445 | last_one->next; |
446 | last_one = last_one->next); | |
447 | last_one->next = objfile; | |
c906108c SS |
448 | } |
449 | ||
0df8b418 | 450 | /* Save passed in flag bits. */ |
2df3850c | 451 | objfile->flags |= flags; |
c906108c | 452 | |
6c95b8df | 453 | /* Rebuild section map next time we need it. */ |
607ece04 | 454 | get_objfile_pspace_data (objfile->pspace)->new_objfiles_available = 1; |
bb272892 | 455 | |
6c95b8df | 456 | return objfile; |
c906108c SS |
457 | } |
458 | ||
5e2b427d | 459 | /* Retrieve the gdbarch associated with OBJFILE. */ |
9c1877ea | 460 | |
5e2b427d | 461 | struct gdbarch * |
9c1877ea | 462 | get_objfile_arch (const struct objfile *objfile) |
5e2b427d | 463 | { |
df6d5441 | 464 | return objfile->per_bfd->gdbarch; |
5e2b427d UW |
465 | } |
466 | ||
abd0a5fa JK |
467 | /* If there is a valid and known entry point, function fills *ENTRY_P with it |
468 | and returns non-zero; otherwise it returns zero. */ | |
9ab9195f | 469 | |
abd0a5fa JK |
470 | int |
471 | entry_point_address_query (CORE_ADDR *entry_p) | |
9ab9195f | 472 | { |
6ef55de7 | 473 | if (symfile_objfile == NULL || !symfile_objfile->per_bfd->ei.entry_point_p) |
3612b192 DJ |
474 | return 0; |
475 | ||
6ef55de7 | 476 | *entry_p = (symfile_objfile->per_bfd->ei.entry_point |
53eddfa6 | 477 | + ANOFFSET (symfile_objfile->section_offsets, |
6ef55de7 | 478 | symfile_objfile->per_bfd->ei.the_bfd_section_index)); |
3612b192 | 479 | |
abd0a5fa JK |
480 | return 1; |
481 | } | |
482 | ||
483 | /* Get current entry point address. Call error if it is not known. */ | |
484 | ||
485 | CORE_ADDR | |
486 | entry_point_address (void) | |
487 | { | |
488 | CORE_ADDR retval; | |
489 | ||
490 | if (!entry_point_address_query (&retval)) | |
491 | error (_("Entry point address is not known.")); | |
492 | ||
493 | return retval; | |
9ab9195f | 494 | } |
15831452 | 495 | |
15d123c9 TG |
496 | /* Iterator on PARENT and every separate debug objfile of PARENT. |
497 | The usage pattern is: | |
498 | for (objfile = parent; | |
499 | objfile; | |
500 | objfile = objfile_separate_debug_iterate (parent, objfile)) | |
501 | ... | |
502 | */ | |
503 | ||
504 | struct objfile * | |
505 | objfile_separate_debug_iterate (const struct objfile *parent, | |
506 | const struct objfile *objfile) | |
507 | { | |
508 | struct objfile *res; | |
509 | ||
399f313b | 510 | /* If any, return the first child. */ |
15d123c9 TG |
511 | res = objfile->separate_debug_objfile; |
512 | if (res) | |
513 | return res; | |
514 | ||
15d123c9 TG |
515 | /* Common case where there is no separate debug objfile. */ |
516 | if (objfile == parent) | |
517 | return NULL; | |
518 | ||
399f313b TG |
519 | /* Return the brother if any. Note that we don't iterate on brothers of |
520 | the parents. */ | |
521 | res = objfile->separate_debug_objfile_link; | |
522 | if (res) | |
523 | return res; | |
524 | ||
15d123c9 TG |
525 | for (res = objfile->separate_debug_objfile_backlink; |
526 | res != parent; | |
527 | res = res->separate_debug_objfile_backlink) | |
528 | { | |
529 | gdb_assert (res != NULL); | |
530 | if (res->separate_debug_objfile_link) | |
531 | return res->separate_debug_objfile_link; | |
532 | } | |
533 | return NULL; | |
534 | } | |
15831452 | 535 | |
5b5d99cf JB |
536 | /* Put one object file before a specified on in the global list. |
537 | This can be used to make sure an object file is destroyed before | |
0df8b418 | 538 | another when using ALL_OBJFILES_SAFE to free all objfiles. */ |
5b5d99cf JB |
539 | void |
540 | put_objfile_before (struct objfile *objfile, struct objfile *before_this) | |
541 | { | |
542 | struct objfile **objp; | |
543 | ||
544 | unlink_objfile (objfile); | |
545 | ||
546 | for (objp = &object_files; *objp != NULL; objp = &((*objp)->next)) | |
547 | { | |
548 | if (*objp == before_this) | |
549 | { | |
550 | objfile->next = *objp; | |
551 | *objp = objfile; | |
552 | return; | |
553 | } | |
554 | } | |
555 | ||
556 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 557 | _("put_objfile_before: before objfile not in list")); |
5b5d99cf JB |
558 | } |
559 | ||
c906108c SS |
560 | /* Unlink OBJFILE from the list of known objfiles, if it is found in the |
561 | list. | |
562 | ||
563 | It is not a bug, or error, to call this function if OBJFILE is not known | |
564 | to be in the current list. This is done in the case of mapped objfiles, | |
565 | for example, just to ensure that the mapped objfile doesn't appear twice | |
566 | in the list. Since the list is threaded, linking in a mapped objfile | |
567 | twice would create a circular list. | |
568 | ||
569 | If OBJFILE turns out to be in the list, we zap it's NEXT pointer after | |
570 | unlinking it, just to ensure that we have completely severed any linkages | |
0df8b418 | 571 | between the OBJFILE and the list. */ |
c906108c SS |
572 | |
573 | void | |
fba45db2 | 574 | unlink_objfile (struct objfile *objfile) |
c906108c | 575 | { |
c5aa993b | 576 | struct objfile **objpp; |
c906108c | 577 | |
c5aa993b | 578 | for (objpp = &object_files; *objpp != NULL; objpp = &((*objpp)->next)) |
c906108c | 579 | { |
c5aa993b | 580 | if (*objpp == objfile) |
c906108c | 581 | { |
c5aa993b JM |
582 | *objpp = (*objpp)->next; |
583 | objfile->next = NULL; | |
07cd4b97 | 584 | return; |
c906108c SS |
585 | } |
586 | } | |
07cd4b97 | 587 | |
8e65ff28 | 588 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 589 | _("unlink_objfile: objfile already unlinked")); |
c906108c SS |
590 | } |
591 | ||
15d123c9 TG |
592 | /* Add OBJFILE as a separate debug objfile of PARENT. */ |
593 | ||
594 | void | |
595 | add_separate_debug_objfile (struct objfile *objfile, struct objfile *parent) | |
596 | { | |
597 | gdb_assert (objfile && parent); | |
598 | ||
599 | /* Must not be already in a list. */ | |
600 | gdb_assert (objfile->separate_debug_objfile_backlink == NULL); | |
601 | gdb_assert (objfile->separate_debug_objfile_link == NULL); | |
8a92335b JK |
602 | gdb_assert (objfile->separate_debug_objfile == NULL); |
603 | gdb_assert (parent->separate_debug_objfile_backlink == NULL); | |
604 | gdb_assert (parent->separate_debug_objfile_link == NULL); | |
15d123c9 TG |
605 | |
606 | objfile->separate_debug_objfile_backlink = parent; | |
607 | objfile->separate_debug_objfile_link = parent->separate_debug_objfile; | |
608 | parent->separate_debug_objfile = objfile; | |
609 | ||
610 | /* Put the separate debug object before the normal one, this is so that | |
0df8b418 | 611 | usage of the ALL_OBJFILES_SAFE macro will stay safe. */ |
15d123c9 TG |
612 | put_objfile_before (objfile, parent); |
613 | } | |
614 | ||
615 | /* Free all separate debug objfile of OBJFILE, but don't free OBJFILE | |
616 | itself. */ | |
617 | ||
618 | void | |
619 | free_objfile_separate_debug (struct objfile *objfile) | |
620 | { | |
621 | struct objfile *child; | |
622 | ||
623 | for (child = objfile->separate_debug_objfile; child;) | |
624 | { | |
625 | struct objfile *next_child = child->separate_debug_objfile_link; | |
626 | free_objfile (child); | |
627 | child = next_child; | |
628 | } | |
629 | } | |
c906108c | 630 | |
7580e917 | 631 | /* Destroy an objfile and all the symtabs and psymtabs under it. */ |
c906108c SS |
632 | |
633 | void | |
fba45db2 | 634 | free_objfile (struct objfile *objfile) |
c906108c | 635 | { |
63644780 NB |
636 | /* First notify observers that this objfile is about to be freed. */ |
637 | observer_notify_free_objfile (objfile); | |
638 | ||
15d123c9 TG |
639 | /* Free all separate debug objfiles. */ |
640 | free_objfile_separate_debug (objfile); | |
641 | ||
5b5d99cf JB |
642 | if (objfile->separate_debug_objfile_backlink) |
643 | { | |
644 | /* We freed the separate debug file, make sure the base objfile | |
645 | doesn't reference it. */ | |
15d123c9 TG |
646 | struct objfile *child; |
647 | ||
648 | child = objfile->separate_debug_objfile_backlink->separate_debug_objfile; | |
649 | ||
650 | if (child == objfile) | |
651 | { | |
652 | /* OBJFILE is the first child. */ | |
653 | objfile->separate_debug_objfile_backlink->separate_debug_objfile = | |
654 | objfile->separate_debug_objfile_link; | |
655 | } | |
656 | else | |
657 | { | |
658 | /* Find OBJFILE in the list. */ | |
659 | while (1) | |
660 | { | |
661 | if (child->separate_debug_objfile_link == objfile) | |
662 | { | |
663 | child->separate_debug_objfile_link = | |
664 | objfile->separate_debug_objfile_link; | |
665 | break; | |
666 | } | |
667 | child = child->separate_debug_objfile_link; | |
668 | gdb_assert (child); | |
669 | } | |
670 | } | |
5b5d99cf JB |
671 | } |
672 | ||
ae5a43e0 DJ |
673 | /* Remove any references to this objfile in the global value |
674 | lists. */ | |
675 | preserve_values (objfile); | |
676 | ||
9f743ef6 JK |
677 | /* It still may reference data modules have associated with the objfile and |
678 | the symbol file data. */ | |
679 | forget_cached_source_info_for_objfile (objfile); | |
680 | ||
2f202fde | 681 | breakpoint_free_objfile (objfile); |
afedecd3 | 682 | btrace_free_objfile (objfile); |
2f202fde | 683 | |
c906108c SS |
684 | /* First do any symbol file specific actions required when we are |
685 | finished with a particular symbol file. Note that if the objfile | |
686 | is using reusable symbol information (via mmalloc) then each of | |
687 | these routines is responsible for doing the correct thing, either | |
688 | freeing things which are valid only during this particular gdb | |
0df8b418 | 689 | execution, or leaving them to be reused during the next one. */ |
c906108c | 690 | |
c5aa993b | 691 | if (objfile->sf != NULL) |
c906108c | 692 | { |
c5aa993b | 693 | (*objfile->sf->sym_finish) (objfile); |
c906108c SS |
694 | } |
695 | ||
9f743ef6 JK |
696 | /* Discard any data modules have associated with the objfile. The function |
697 | still may reference objfile->obfd. */ | |
c5bc3a77 DJ |
698 | objfile_free_data (objfile); |
699 | ||
706e3705 TT |
700 | if (objfile->obfd) |
701 | gdb_bfd_unref (objfile->obfd); | |
702 | else | |
703 | free_objfile_per_bfd_storage (objfile->per_bfd); | |
c906108c | 704 | |
0df8b418 | 705 | /* Remove it from the chain of all objfiles. */ |
c906108c SS |
706 | |
707 | unlink_objfile (objfile); | |
708 | ||
adb7f338 JK |
709 | if (objfile == symfile_objfile) |
710 | symfile_objfile = NULL; | |
c906108c | 711 | |
c906108c SS |
712 | /* Before the symbol table code was redone to make it easier to |
713 | selectively load and remove information particular to a specific | |
714 | linkage unit, gdb used to do these things whenever the monolithic | |
715 | symbol table was blown away. How much still needs to be done | |
716 | is unknown, but we play it safe for now and keep each action until | |
0df8b418 | 717 | it is shown to be no longer needed. */ |
c5aa993b | 718 | |
cb5d864f FF |
719 | /* Not all our callers call clear_symtab_users (objfile_purge_solibs, |
720 | for example), so we need to call this here. */ | |
c906108c SS |
721 | clear_pc_function_cache (); |
722 | ||
9bdcbae7 DJ |
723 | /* Clear globals which might have pointed into a removed objfile. |
724 | FIXME: It's not clear which of these are supposed to persist | |
725 | between expressions and which ought to be reset each time. */ | |
726 | expression_context_block = NULL; | |
727 | innermost_block = NULL; | |
728 | ||
cb5d864f | 729 | /* Check to see if the current_source_symtab belongs to this objfile, |
0df8b418 | 730 | and if so, call clear_current_source_symtab_and_line. */ |
cb5d864f FF |
731 | |
732 | { | |
733 | struct symtab_and_line cursal = get_current_source_symtab_and_line (); | |
cb5d864f | 734 | |
eb822aa6 | 735 | if (cursal.symtab && SYMTAB_OBJFILE (cursal.symtab) == objfile) |
00174a86 | 736 | clear_current_source_symtab_and_line (); |
cb5d864f FF |
737 | } |
738 | ||
78a4a9b9 | 739 | if (objfile->global_psymbols.list) |
2dc74dc1 | 740 | xfree (objfile->global_psymbols.list); |
78a4a9b9 | 741 | if (objfile->static_psymbols.list) |
2dc74dc1 | 742 | xfree (objfile->static_psymbols.list); |
0df8b418 | 743 | /* Free the obstacks for non-reusable objfiles. */ |
710e1a31 | 744 | psymbol_bcache_free (objfile->psymbol_cache); |
b99607ea | 745 | obstack_free (&objfile->objfile_obstack, 0); |
6c95b8df PA |
746 | |
747 | /* Rebuild section map next time we need it. */ | |
607ece04 | 748 | get_objfile_pspace_data (objfile->pspace)->section_map_dirty = 1; |
6c95b8df | 749 | |
63e43d3a PMR |
750 | /* Free the map for static links. There's no need to free static link |
751 | themselves since they were allocated on the objstack. */ | |
752 | if (objfile->static_links != NULL) | |
753 | htab_delete (objfile->static_links); | |
754 | ||
020f7036 | 755 | /* The last thing we do is free the objfile struct itself. */ |
2dc74dc1 | 756 | xfree (objfile); |
c906108c SS |
757 | } |
758 | ||
74b7792f AC |
759 | static void |
760 | do_free_objfile_cleanup (void *obj) | |
761 | { | |
19ba03f4 | 762 | free_objfile ((struct objfile *) obj); |
74b7792f AC |
763 | } |
764 | ||
765 | struct cleanup * | |
766 | make_cleanup_free_objfile (struct objfile *obj) | |
767 | { | |
768 | return make_cleanup (do_free_objfile_cleanup, obj); | |
769 | } | |
c906108c SS |
770 | |
771 | /* Free all the object files at once and clean up their users. */ | |
772 | ||
773 | void | |
fba45db2 | 774 | free_all_objfiles (void) |
c906108c SS |
775 | { |
776 | struct objfile *objfile, *temp; | |
0133421a JK |
777 | struct so_list *so; |
778 | ||
779 | /* Any objfile referencewould become stale. */ | |
780 | for (so = master_so_list (); so; so = so->next) | |
781 | gdb_assert (so->objfile == NULL); | |
c906108c SS |
782 | |
783 | ALL_OBJFILES_SAFE (objfile, temp) | |
c5aa993b JM |
784 | { |
785 | free_objfile (objfile); | |
786 | } | |
c1e56572 | 787 | clear_symtab_users (0); |
c906108c SS |
788 | } |
789 | \f | |
34eaf542 TT |
790 | /* A helper function for objfile_relocate1 that relocates a single |
791 | symbol. */ | |
792 | ||
793 | static void | |
794 | relocate_one_symbol (struct symbol *sym, struct objfile *objfile, | |
795 | struct section_offsets *delta) | |
796 | { | |
797 | fixup_symbol_section (sym, objfile); | |
798 | ||
799 | /* The RS6000 code from which this was taken skipped | |
800 | any symbols in STRUCT_DOMAIN or UNDEF_DOMAIN. | |
801 | But I'm leaving out that test, on the theory that | |
802 | they can't possibly pass the tests below. */ | |
803 | if ((SYMBOL_CLASS (sym) == LOC_LABEL | |
804 | || SYMBOL_CLASS (sym) == LOC_STATIC) | |
805 | && SYMBOL_SECTION (sym) >= 0) | |
806 | { | |
807 | SYMBOL_VALUE_ADDRESS (sym) += ANOFFSET (delta, SYMBOL_SECTION (sym)); | |
808 | } | |
809 | } | |
810 | ||
c906108c | 811 | /* Relocate OBJFILE to NEW_OFFSETS. There should be OBJFILE->NUM_SECTIONS |
b260e109 JK |
812 | entries in new_offsets. SEPARATE_DEBUG_OBJFILE is not touched here. |
813 | Return non-zero iff any change happened. */ | |
567995e1 | 814 | |
b260e109 | 815 | static int |
5cc80db3 | 816 | objfile_relocate1 (struct objfile *objfile, |
3189cb12 | 817 | const struct section_offsets *new_offsets) |
c906108c | 818 | { |
30510692 | 819 | struct obj_section *s; |
d4f3574e | 820 | struct section_offsets *delta = |
a39a16c4 MM |
821 | ((struct section_offsets *) |
822 | alloca (SIZEOF_N_SECTION_OFFSETS (objfile->num_sections))); | |
c906108c | 823 | |
5cc80db3 MS |
824 | int i; |
825 | int something_changed = 0; | |
826 | ||
827 | for (i = 0; i < objfile->num_sections; ++i) | |
828 | { | |
829 | delta->offsets[i] = | |
830 | ANOFFSET (new_offsets, i) - ANOFFSET (objfile->section_offsets, i); | |
831 | if (ANOFFSET (delta, i) != 0) | |
832 | something_changed = 1; | |
833 | } | |
834 | if (!something_changed) | |
835 | return 0; | |
c906108c SS |
836 | |
837 | /* OK, get all the symtabs. */ | |
838 | { | |
43f3e411 | 839 | struct compunit_symtab *cust; |
c906108c SS |
840 | struct symtab *s; |
841 | ||
43f3e411 | 842 | ALL_OBJFILE_FILETABS (objfile, cust, s) |
c5aa993b JM |
843 | { |
844 | struct linetable *l; | |
c5aa993b JM |
845 | int i; |
846 | ||
847 | /* First the line table. */ | |
8435453b | 848 | l = SYMTAB_LINETABLE (s); |
c5aa993b JM |
849 | if (l) |
850 | { | |
851 | for (i = 0; i < l->nitems; ++i) | |
43f3e411 DE |
852 | l->item[i].pc += ANOFFSET (delta, |
853 | COMPUNIT_BLOCK_LINE_SECTION | |
854 | (cust)); | |
c5aa993b | 855 | } |
43f3e411 | 856 | } |
c906108c | 857 | |
43f3e411 DE |
858 | ALL_OBJFILE_COMPUNITS (objfile, cust) |
859 | { | |
860 | const struct blockvector *bv = COMPUNIT_BLOCKVECTOR (cust); | |
861 | int block_line_section = COMPUNIT_BLOCK_LINE_SECTION (cust); | |
c906108c | 862 | |
b101f7a1 UW |
863 | if (BLOCKVECTOR_MAP (bv)) |
864 | addrmap_relocate (BLOCKVECTOR_MAP (bv), | |
43f3e411 | 865 | ANOFFSET (delta, block_line_section)); |
b101f7a1 | 866 | |
c5aa993b JM |
867 | for (i = 0; i < BLOCKVECTOR_NBLOCKS (bv); ++i) |
868 | { | |
869 | struct block *b; | |
e88c90f2 | 870 | struct symbol *sym; |
de4f826b | 871 | struct dict_iterator iter; |
c5aa993b JM |
872 | |
873 | b = BLOCKVECTOR_BLOCK (bv, i); | |
43f3e411 DE |
874 | BLOCK_START (b) += ANOFFSET (delta, block_line_section); |
875 | BLOCK_END (b) += ANOFFSET (delta, block_line_section); | |
c5aa993b | 876 | |
8157b174 TT |
877 | /* We only want to iterate over the local symbols, not any |
878 | symbols in included symtabs. */ | |
879 | ALL_DICT_SYMBOLS (BLOCK_DICT (b), iter, sym) | |
c5aa993b | 880 | { |
34eaf542 | 881 | relocate_one_symbol (sym, objfile, delta); |
c5aa993b JM |
882 | } |
883 | } | |
884 | } | |
c906108c SS |
885 | } |
886 | ||
34eaf542 TT |
887 | /* Relocate isolated symbols. */ |
888 | { | |
889 | struct symbol *iter; | |
890 | ||
891 | for (iter = objfile->template_symbols; iter; iter = iter->hash_next) | |
892 | relocate_one_symbol (iter, objfile, delta); | |
893 | } | |
894 | ||
9b14d7aa JK |
895 | if (objfile->psymtabs_addrmap) |
896 | addrmap_relocate (objfile->psymtabs_addrmap, | |
897 | ANOFFSET (delta, SECT_OFF_TEXT (objfile))); | |
898 | ||
ccefe4c4 TT |
899 | if (objfile->sf) |
900 | objfile->sf->qf->relocate (objfile, new_offsets, delta); | |
c906108c | 901 | |
f1f2b5f4 PA |
902 | { |
903 | int i; | |
5cc80db3 | 904 | |
f1f2b5f4 PA |
905 | for (i = 0; i < objfile->num_sections; ++i) |
906 | (objfile->section_offsets)->offsets[i] = ANOFFSET (new_offsets, i); | |
907 | } | |
908 | ||
909 | /* Rebuild section map next time we need it. */ | |
607ece04 | 910 | get_objfile_pspace_data (objfile->pspace)->section_map_dirty = 1; |
f1f2b5f4 | 911 | |
30510692 DJ |
912 | /* Update the table in exec_ops, used to read memory. */ |
913 | ALL_OBJFILE_OSECTIONS (objfile, s) | |
914 | { | |
65cf3563 | 915 | int idx = s - objfile->sections; |
30510692 DJ |
916 | |
917 | exec_set_section_address (bfd_get_filename (objfile->obfd), idx, | |
f1f6aadf | 918 | obj_section_addr (s)); |
30510692 | 919 | } |
b260e109 JK |
920 | |
921 | /* Data changed. */ | |
922 | return 1; | |
567995e1 JK |
923 | } |
924 | ||
925 | /* Relocate OBJFILE to NEW_OFFSETS. There should be OBJFILE->NUM_SECTIONS | |
926 | entries in new_offsets. Process also OBJFILE's SEPARATE_DEBUG_OBJFILEs. | |
927 | ||
928 | The number and ordering of sections does differ between the two objfiles. | |
929 | Only their names match. Also the file offsets will differ (objfile being | |
930 | possibly prelinked but separate_debug_objfile is probably not prelinked) but | |
931 | the in-memory absolute address as specified by NEW_OFFSETS must match both | |
932 | files. */ | |
933 | ||
934 | void | |
3189cb12 DE |
935 | objfile_relocate (struct objfile *objfile, |
936 | const struct section_offsets *new_offsets) | |
567995e1 JK |
937 | { |
938 | struct objfile *debug_objfile; | |
b260e109 | 939 | int changed = 0; |
567995e1 | 940 | |
b260e109 | 941 | changed |= objfile_relocate1 (objfile, new_offsets); |
567995e1 JK |
942 | |
943 | for (debug_objfile = objfile->separate_debug_objfile; | |
944 | debug_objfile; | |
945 | debug_objfile = objfile_separate_debug_iterate (objfile, debug_objfile)) | |
946 | { | |
947 | struct section_addr_info *objfile_addrs; | |
567995e1 JK |
948 | struct cleanup *my_cleanups; |
949 | ||
950 | objfile_addrs = build_section_addr_info_from_objfile (objfile); | |
951 | my_cleanups = make_cleanup (xfree, objfile_addrs); | |
952 | ||
953 | /* Here OBJFILE_ADDRS contain the correct absolute addresses, the | |
954 | relative ones must be already created according to debug_objfile. */ | |
955 | ||
956 | addr_info_make_relative (objfile_addrs, debug_objfile->obfd); | |
957 | ||
958 | gdb_assert (debug_objfile->num_sections | |
d445b2f6 | 959 | == gdb_bfd_count_sections (debug_objfile->obfd)); |
cfe826d4 TT |
960 | std::vector<struct section_offsets> |
961 | new_debug_offsets (SIZEOF_N_SECTION_OFFSETS (debug_objfile->num_sections)); | |
962 | relative_addr_info_to_section_offsets (new_debug_offsets.data (), | |
567995e1 JK |
963 | debug_objfile->num_sections, |
964 | objfile_addrs); | |
965 | ||
cfe826d4 | 966 | changed |= objfile_relocate1 (debug_objfile, new_debug_offsets.data ()); |
567995e1 JK |
967 | |
968 | do_cleanups (my_cleanups); | |
969 | } | |
30510692 | 970 | |
0df8b418 | 971 | /* Relocate breakpoints as necessary, after things are relocated. */ |
b260e109 JK |
972 | if (changed) |
973 | breakpoint_re_set (); | |
c906108c | 974 | } |
4141a416 JB |
975 | |
976 | /* Rebase (add to the offsets) OBJFILE by SLIDE. SEPARATE_DEBUG_OBJFILE is | |
977 | not touched here. | |
978 | Return non-zero iff any change happened. */ | |
979 | ||
980 | static int | |
981 | objfile_rebase1 (struct objfile *objfile, CORE_ADDR slide) | |
982 | { | |
983 | struct section_offsets *new_offsets = | |
984 | ((struct section_offsets *) | |
985 | alloca (SIZEOF_N_SECTION_OFFSETS (objfile->num_sections))); | |
986 | int i; | |
987 | ||
988 | for (i = 0; i < objfile->num_sections; ++i) | |
989 | new_offsets->offsets[i] = slide; | |
990 | ||
991 | return objfile_relocate1 (objfile, new_offsets); | |
992 | } | |
993 | ||
994 | /* Rebase (add to the offsets) OBJFILE by SLIDE. Process also OBJFILE's | |
995 | SEPARATE_DEBUG_OBJFILEs. */ | |
996 | ||
997 | void | |
998 | objfile_rebase (struct objfile *objfile, CORE_ADDR slide) | |
999 | { | |
1000 | struct objfile *debug_objfile; | |
1001 | int changed = 0; | |
1002 | ||
1003 | changed |= objfile_rebase1 (objfile, slide); | |
1004 | ||
1005 | for (debug_objfile = objfile->separate_debug_objfile; | |
1006 | debug_objfile; | |
1007 | debug_objfile = objfile_separate_debug_iterate (objfile, debug_objfile)) | |
1008 | changed |= objfile_rebase1 (debug_objfile, slide); | |
1009 | ||
1010 | /* Relocate breakpoints as necessary, after things are relocated. */ | |
1011 | if (changed) | |
1012 | breakpoint_re_set (); | |
1013 | } | |
c906108c | 1014 | \f |
55333a84 DE |
1015 | /* Return non-zero if OBJFILE has partial symbols. */ |
1016 | ||
1017 | int | |
1018 | objfile_has_partial_symbols (struct objfile *objfile) | |
1019 | { | |
b11896a5 TT |
1020 | if (!objfile->sf) |
1021 | return 0; | |
3e03848b JK |
1022 | |
1023 | /* If we have not read psymbols, but we have a function capable of reading | |
1024 | them, then that is an indication that they are in fact available. Without | |
1025 | this function the symbols may have been already read in but they also may | |
1026 | not be present in this objfile. */ | |
1027 | if ((objfile->flags & OBJF_PSYMTABS_READ) == 0 | |
1028 | && objfile->sf->sym_read_psymbols != NULL) | |
1029 | return 1; | |
1030 | ||
b11896a5 | 1031 | return objfile->sf->qf->has_symbols (objfile); |
55333a84 DE |
1032 | } |
1033 | ||
1034 | /* Return non-zero if OBJFILE has full symbols. */ | |
1035 | ||
1036 | int | |
1037 | objfile_has_full_symbols (struct objfile *objfile) | |
1038 | { | |
43f3e411 | 1039 | return objfile->compunit_symtabs != NULL; |
55333a84 DE |
1040 | } |
1041 | ||
e361b228 | 1042 | /* Return non-zero if OBJFILE has full or partial symbols, either directly |
15d123c9 | 1043 | or through a separate debug file. */ |
e361b228 TG |
1044 | |
1045 | int | |
1046 | objfile_has_symbols (struct objfile *objfile) | |
1047 | { | |
15d123c9 | 1048 | struct objfile *o; |
e361b228 | 1049 | |
15d123c9 TG |
1050 | for (o = objfile; o; o = objfile_separate_debug_iterate (objfile, o)) |
1051 | if (objfile_has_partial_symbols (o) || objfile_has_full_symbols (o)) | |
1052 | return 1; | |
e361b228 TG |
1053 | return 0; |
1054 | } | |
1055 | ||
1056 | ||
c906108c SS |
1057 | /* Many places in gdb want to test just to see if we have any partial |
1058 | symbols available. This function returns zero if none are currently | |
0df8b418 | 1059 | available, nonzero otherwise. */ |
c906108c SS |
1060 | |
1061 | int | |
fba45db2 | 1062 | have_partial_symbols (void) |
c906108c SS |
1063 | { |
1064 | struct objfile *ofp; | |
1065 | ||
1066 | ALL_OBJFILES (ofp) | |
c5aa993b | 1067 | { |
55333a84 DE |
1068 | if (objfile_has_partial_symbols (ofp)) |
1069 | return 1; | |
c5aa993b | 1070 | } |
c906108c SS |
1071 | return 0; |
1072 | } | |
1073 | ||
1074 | /* Many places in gdb want to test just to see if we have any full | |
1075 | symbols available. This function returns zero if none are currently | |
0df8b418 | 1076 | available, nonzero otherwise. */ |
c906108c SS |
1077 | |
1078 | int | |
fba45db2 | 1079 | have_full_symbols (void) |
c906108c SS |
1080 | { |
1081 | struct objfile *ofp; | |
1082 | ||
1083 | ALL_OBJFILES (ofp) | |
c5aa993b | 1084 | { |
55333a84 DE |
1085 | if (objfile_has_full_symbols (ofp)) |
1086 | return 1; | |
c5aa993b | 1087 | } |
c906108c SS |
1088 | return 0; |
1089 | } | |
1090 | ||
1091 | ||
1092 | /* This operations deletes all objfile entries that represent solibs that | |
1093 | weren't explicitly loaded by the user, via e.g., the add-symbol-file | |
0df8b418 MS |
1094 | command. */ |
1095 | ||
c906108c | 1096 | void |
fba45db2 | 1097 | objfile_purge_solibs (void) |
c906108c | 1098 | { |
c5aa993b JM |
1099 | struct objfile *objf; |
1100 | struct objfile *temp; | |
c906108c SS |
1101 | |
1102 | ALL_OBJFILES_SAFE (objf, temp) | |
1103 | { | |
1104 | /* We assume that the solib package has been purged already, or will | |
0df8b418 MS |
1105 | be soon. */ |
1106 | ||
2df3850c | 1107 | if (!(objf->flags & OBJF_USERLOADED) && (objf->flags & OBJF_SHARED)) |
c906108c SS |
1108 | free_objfile (objf); |
1109 | } | |
1110 | } | |
1111 | ||
1112 | ||
1113 | /* Many places in gdb want to test just to see if we have any minimal | |
1114 | symbols available. This function returns zero if none are currently | |
0df8b418 | 1115 | available, nonzero otherwise. */ |
c906108c SS |
1116 | |
1117 | int | |
fba45db2 | 1118 | have_minimal_symbols (void) |
c906108c SS |
1119 | { |
1120 | struct objfile *ofp; | |
1121 | ||
1122 | ALL_OBJFILES (ofp) | |
c5aa993b | 1123 | { |
34643a32 | 1124 | if (ofp->per_bfd->minimal_symbol_count > 0) |
c5aa993b JM |
1125 | { |
1126 | return 1; | |
1127 | } | |
1128 | } | |
c906108c SS |
1129 | return 0; |
1130 | } | |
1131 | ||
a845f5cb PP |
1132 | /* Qsort comparison function. */ |
1133 | ||
1134 | static int | |
1135 | qsort_cmp (const void *a, const void *b) | |
1136 | { | |
1137 | const struct obj_section *sect1 = *(const struct obj_section **) a; | |
1138 | const struct obj_section *sect2 = *(const struct obj_section **) b; | |
1139 | const CORE_ADDR sect1_addr = obj_section_addr (sect1); | |
1140 | const CORE_ADDR sect2_addr = obj_section_addr (sect2); | |
1141 | ||
1142 | if (sect1_addr < sect2_addr) | |
6fbf07cd | 1143 | return -1; |
a845f5cb | 1144 | else if (sect1_addr > sect2_addr) |
6fbf07cd PP |
1145 | return 1; |
1146 | else | |
5cc80db3 MS |
1147 | { |
1148 | /* Sections are at the same address. This could happen if | |
1149 | A) we have an objfile and a separate debuginfo. | |
1150 | B) we are confused, and have added sections without proper relocation, | |
0df8b418 | 1151 | or something like that. */ |
5cc80db3 MS |
1152 | |
1153 | const struct objfile *const objfile1 = sect1->objfile; | |
1154 | const struct objfile *const objfile2 = sect2->objfile; | |
1155 | ||
1156 | if (objfile1->separate_debug_objfile == objfile2 | |
1157 | || objfile2->separate_debug_objfile == objfile1) | |
1158 | { | |
1159 | /* Case A. The ordering doesn't matter: separate debuginfo files | |
1160 | will be filtered out later. */ | |
1161 | ||
1162 | return 0; | |
1163 | } | |
1164 | ||
1165 | /* Case B. Maintain stable sort order, so bugs in GDB are easier to | |
1166 | triage. This section could be slow (since we iterate over all | |
1167 | objfiles in each call to qsort_cmp), but this shouldn't happen | |
1168 | very often (GDB is already in a confused state; one hopes this | |
1169 | doesn't happen at all). If you discover that significant time is | |
1170 | spent in the loops below, do 'set complaints 100' and examine the | |
1171 | resulting complaints. */ | |
1172 | ||
1173 | if (objfile1 == objfile2) | |
1174 | { | |
1175 | /* Both sections came from the same objfile. We are really confused. | |
1176 | Sort on sequence order of sections within the objfile. */ | |
1177 | ||
1178 | const struct obj_section *osect; | |
1179 | ||
1180 | ALL_OBJFILE_OSECTIONS (objfile1, osect) | |
1181 | if (osect == sect1) | |
1182 | return -1; | |
1183 | else if (osect == sect2) | |
1184 | return 1; | |
1185 | ||
1186 | /* We should have found one of the sections before getting here. */ | |
f3574227 | 1187 | gdb_assert_not_reached ("section not found"); |
5cc80db3 MS |
1188 | } |
1189 | else | |
1190 | { | |
1191 | /* Sort on sequence number of the objfile in the chain. */ | |
1192 | ||
1193 | const struct objfile *objfile; | |
1194 | ||
1195 | ALL_OBJFILES (objfile) | |
1196 | if (objfile == objfile1) | |
1197 | return -1; | |
1198 | else if (objfile == objfile2) | |
1199 | return 1; | |
1200 | ||
1201 | /* We should have found one of the objfiles before getting here. */ | |
f3574227 | 1202 | gdb_assert_not_reached ("objfile not found"); |
5cc80db3 MS |
1203 | } |
1204 | } | |
6fbf07cd PP |
1205 | |
1206 | /* Unreachable. */ | |
f3574227 | 1207 | gdb_assert_not_reached ("unexpected code path"); |
a845f5cb PP |
1208 | return 0; |
1209 | } | |
1210 | ||
3aad21cf PP |
1211 | /* Select "better" obj_section to keep. We prefer the one that came from |
1212 | the real object, rather than the one from separate debuginfo. | |
1213 | Most of the time the two sections are exactly identical, but with | |
1214 | prelinking the .rel.dyn section in the real object may have different | |
1215 | size. */ | |
1216 | ||
1217 | static struct obj_section * | |
1218 | preferred_obj_section (struct obj_section *a, struct obj_section *b) | |
1219 | { | |
1220 | gdb_assert (obj_section_addr (a) == obj_section_addr (b)); | |
1221 | gdb_assert ((a->objfile->separate_debug_objfile == b->objfile) | |
1222 | || (b->objfile->separate_debug_objfile == a->objfile)); | |
1223 | gdb_assert ((a->objfile->separate_debug_objfile_backlink == b->objfile) | |
1224 | || (b->objfile->separate_debug_objfile_backlink == a->objfile)); | |
1225 | ||
1226 | if (a->objfile->separate_debug_objfile != NULL) | |
1227 | return a; | |
1228 | return b; | |
1229 | } | |
1230 | ||
6fbf07cd PP |
1231 | /* Return 1 if SECTION should be inserted into the section map. |
1232 | We want to insert only non-overlay and non-TLS section. */ | |
1233 | ||
1234 | static int | |
1235 | insert_section_p (const struct bfd *abfd, | |
1236 | const struct bfd_section *section) | |
1237 | { | |
1238 | const bfd_vma lma = bfd_section_lma (abfd, section); | |
1239 | ||
50f8ea94 | 1240 | if (overlay_debugging && lma != 0 && lma != bfd_section_vma (abfd, section) |
6fbf07cd PP |
1241 | && (bfd_get_file_flags (abfd) & BFD_IN_MEMORY) == 0) |
1242 | /* This is an overlay section. IN_MEMORY check is needed to avoid | |
1243 | discarding sections from the "system supplied DSO" (aka vdso) | |
1244 | on some Linux systems (e.g. Fedora 11). */ | |
1245 | return 0; | |
1246 | if ((bfd_get_section_flags (abfd, section) & SEC_THREAD_LOCAL) != 0) | |
1247 | /* This is a TLS section. */ | |
1248 | return 0; | |
1249 | ||
1250 | return 1; | |
1251 | } | |
1252 | ||
1253 | /* Filter out overlapping sections where one section came from the real | |
1254 | objfile, and the other from a separate debuginfo file. | |
1255 | Return the size of table after redundant sections have been eliminated. */ | |
1256 | ||
1257 | static int | |
1258 | filter_debuginfo_sections (struct obj_section **map, int map_size) | |
1259 | { | |
1260 | int i, j; | |
1261 | ||
1262 | for (i = 0, j = 0; i < map_size - 1; i++) | |
1263 | { | |
1264 | struct obj_section *const sect1 = map[i]; | |
1265 | struct obj_section *const sect2 = map[i + 1]; | |
1266 | const struct objfile *const objfile1 = sect1->objfile; | |
1267 | const struct objfile *const objfile2 = sect2->objfile; | |
1268 | const CORE_ADDR sect1_addr = obj_section_addr (sect1); | |
1269 | const CORE_ADDR sect2_addr = obj_section_addr (sect2); | |
1270 | ||
1271 | if (sect1_addr == sect2_addr | |
1272 | && (objfile1->separate_debug_objfile == objfile2 | |
1273 | || objfile2->separate_debug_objfile == objfile1)) | |
1274 | { | |
1275 | map[j++] = preferred_obj_section (sect1, sect2); | |
1276 | ++i; | |
1277 | } | |
1278 | else | |
1279 | map[j++] = sect1; | |
1280 | } | |
1281 | ||
1282 | if (i < map_size) | |
1283 | { | |
1284 | gdb_assert (i == map_size - 1); | |
1285 | map[j++] = map[i]; | |
1286 | } | |
1287 | ||
1288 | /* The map should not have shrunk to less than half the original size. */ | |
1289 | gdb_assert (map_size / 2 <= j); | |
1290 | ||
1291 | return j; | |
1292 | } | |
1293 | ||
1294 | /* Filter out overlapping sections, issuing a warning if any are found. | |
1295 | Overlapping sections could really be overlay sections which we didn't | |
1296 | classify as such in insert_section_p, or we could be dealing with a | |
1297 | corrupt binary. */ | |
1298 | ||
1299 | static int | |
1300 | filter_overlapping_sections (struct obj_section **map, int map_size) | |
1301 | { | |
1302 | int i, j; | |
1303 | ||
1304 | for (i = 0, j = 0; i < map_size - 1; ) | |
1305 | { | |
1306 | int k; | |
1307 | ||
1308 | map[j++] = map[i]; | |
1309 | for (k = i + 1; k < map_size; k++) | |
1310 | { | |
1311 | struct obj_section *const sect1 = map[i]; | |
1312 | struct obj_section *const sect2 = map[k]; | |
1313 | const CORE_ADDR sect1_addr = obj_section_addr (sect1); | |
1314 | const CORE_ADDR sect2_addr = obj_section_addr (sect2); | |
1315 | const CORE_ADDR sect1_endaddr = obj_section_endaddr (sect1); | |
1316 | ||
1317 | gdb_assert (sect1_addr <= sect2_addr); | |
1318 | ||
1319 | if (sect1_endaddr <= sect2_addr) | |
1320 | break; | |
1321 | else | |
1322 | { | |
1323 | /* We have an overlap. Report it. */ | |
1324 | ||
1325 | struct objfile *const objf1 = sect1->objfile; | |
1326 | struct objfile *const objf2 = sect2->objfile; | |
1327 | ||
6fbf07cd PP |
1328 | const struct bfd_section *const bfds1 = sect1->the_bfd_section; |
1329 | const struct bfd_section *const bfds2 = sect2->the_bfd_section; | |
1330 | ||
1331 | const CORE_ADDR sect2_endaddr = obj_section_endaddr (sect2); | |
1332 | ||
1333 | struct gdbarch *const gdbarch = get_objfile_arch (objf1); | |
1334 | ||
1335 | complaint (&symfile_complaints, | |
1336 | _("unexpected overlap between:\n" | |
1337 | " (A) section `%s' from `%s' [%s, %s)\n" | |
1338 | " (B) section `%s' from `%s' [%s, %s).\n" | |
1339 | "Will ignore section B"), | |
4262abfb | 1340 | bfd_section_name (abfd1, bfds1), objfile_name (objf1), |
6fbf07cd PP |
1341 | paddress (gdbarch, sect1_addr), |
1342 | paddress (gdbarch, sect1_endaddr), | |
4262abfb | 1343 | bfd_section_name (abfd2, bfds2), objfile_name (objf2), |
6fbf07cd PP |
1344 | paddress (gdbarch, sect2_addr), |
1345 | paddress (gdbarch, sect2_endaddr)); | |
1346 | } | |
1347 | } | |
1348 | i = k; | |
1349 | } | |
1350 | ||
1351 | if (i < map_size) | |
1352 | { | |
1353 | gdb_assert (i == map_size - 1); | |
1354 | map[j++] = map[i]; | |
1355 | } | |
1356 | ||
1357 | return j; | |
1358 | } | |
1359 | ||
1360 | ||
1361 | /* Update PMAP, PMAP_SIZE with sections from all objfiles, excluding any | |
1362 | TLS, overlay and overlapping sections. */ | |
a845f5cb PP |
1363 | |
1364 | static void | |
6c95b8df PA |
1365 | update_section_map (struct program_space *pspace, |
1366 | struct obj_section ***pmap, int *pmap_size) | |
a845f5cb | 1367 | { |
607ece04 | 1368 | struct objfile_pspace_info *pspace_info; |
6fbf07cd | 1369 | int alloc_size, map_size, i; |
a845f5cb PP |
1370 | struct obj_section *s, **map; |
1371 | struct objfile *objfile; | |
1372 | ||
607ece04 GB |
1373 | pspace_info = get_objfile_pspace_data (pspace); |
1374 | gdb_assert (pspace_info->section_map_dirty != 0 | |
1375 | || pspace_info->new_objfiles_available != 0); | |
a845f5cb PP |
1376 | |
1377 | map = *pmap; | |
1378 | xfree (map); | |
1379 | ||
6fbf07cd | 1380 | alloc_size = 0; |
6c95b8df PA |
1381 | ALL_PSPACE_OBJFILES (pspace, objfile) |
1382 | ALL_OBJFILE_OSECTIONS (objfile, s) | |
1383 | if (insert_section_p (objfile->obfd, s->the_bfd_section)) | |
1384 | alloc_size += 1; | |
a845f5cb | 1385 | |
65a97ab3 PP |
1386 | /* This happens on detach/attach (e.g. in gdb.base/attach.exp). */ |
1387 | if (alloc_size == 0) | |
1388 | { | |
1389 | *pmap = NULL; | |
1390 | *pmap_size = 0; | |
1391 | return; | |
1392 | } | |
1393 | ||
8d749320 | 1394 | map = XNEWVEC (struct obj_section *, alloc_size); |
a845f5cb | 1395 | |
3aad21cf | 1396 | i = 0; |
6c95b8df PA |
1397 | ALL_PSPACE_OBJFILES (pspace, objfile) |
1398 | ALL_OBJFILE_OSECTIONS (objfile, s) | |
1399 | if (insert_section_p (objfile->obfd, s->the_bfd_section)) | |
1400 | map[i++] = s; | |
a845f5cb | 1401 | |
6fbf07cd PP |
1402 | qsort (map, alloc_size, sizeof (*map), qsort_cmp); |
1403 | map_size = filter_debuginfo_sections(map, alloc_size); | |
1404 | map_size = filter_overlapping_sections(map, map_size); | |
a845f5cb | 1405 | |
6fbf07cd PP |
1406 | if (map_size < alloc_size) |
1407 | /* Some sections were eliminated. Trim excess space. */ | |
224c3ddb | 1408 | map = XRESIZEVEC (struct obj_section *, map, map_size); |
3aad21cf | 1409 | else |
6fbf07cd | 1410 | gdb_assert (alloc_size == map_size); |
3aad21cf | 1411 | |
a845f5cb PP |
1412 | *pmap = map; |
1413 | *pmap_size = map_size; | |
1414 | } | |
1415 | ||
0df8b418 | 1416 | /* Bsearch comparison function. */ |
a845f5cb PP |
1417 | |
1418 | static int | |
1419 | bsearch_cmp (const void *key, const void *elt) | |
1420 | { | |
1421 | const CORE_ADDR pc = *(CORE_ADDR *) key; | |
1422 | const struct obj_section *section = *(const struct obj_section **) elt; | |
1423 | ||
1424 | if (pc < obj_section_addr (section)) | |
1425 | return -1; | |
1426 | if (pc < obj_section_endaddr (section)) | |
1427 | return 0; | |
1428 | return 1; | |
1429 | } | |
1430 | ||
714835d5 | 1431 | /* Returns a section whose range includes PC or NULL if none found. */ |
c906108c SS |
1432 | |
1433 | struct obj_section * | |
714835d5 | 1434 | find_pc_section (CORE_ADDR pc) |
c906108c | 1435 | { |
6c95b8df | 1436 | struct objfile_pspace_info *pspace_info; |
a845f5cb | 1437 | struct obj_section *s, **sp; |
c5aa993b | 1438 | |
714835d5 UW |
1439 | /* Check for mapped overlay section first. */ |
1440 | s = find_pc_mapped_section (pc); | |
1441 | if (s) | |
1442 | return s; | |
c906108c | 1443 | |
6c95b8df | 1444 | pspace_info = get_objfile_pspace_data (current_program_space); |
607ece04 GB |
1445 | if (pspace_info->section_map_dirty |
1446 | || (pspace_info->new_objfiles_available | |
1447 | && !pspace_info->inhibit_updates)) | |
a845f5cb | 1448 | { |
6c95b8df PA |
1449 | update_section_map (current_program_space, |
1450 | &pspace_info->sections, | |
1451 | &pspace_info->num_sections); | |
c906108c | 1452 | |
6c95b8df PA |
1453 | /* Don't need updates to section map until objfiles are added, |
1454 | removed or relocated. */ | |
607ece04 GB |
1455 | pspace_info->new_objfiles_available = 0; |
1456 | pspace_info->section_map_dirty = 0; | |
a845f5cb PP |
1457 | } |
1458 | ||
65a97ab3 PP |
1459 | /* The C standard (ISO/IEC 9899:TC2) requires the BASE argument to |
1460 | bsearch be non-NULL. */ | |
1461 | if (pspace_info->sections == NULL) | |
1462 | { | |
1463 | gdb_assert (pspace_info->num_sections == 0); | |
1464 | return NULL; | |
1465 | } | |
1466 | ||
6c95b8df PA |
1467 | sp = (struct obj_section **) bsearch (&pc, |
1468 | pspace_info->sections, | |
1469 | pspace_info->num_sections, | |
1470 | sizeof (*pspace_info->sections), | |
1471 | bsearch_cmp); | |
a845f5cb PP |
1472 | if (sp != NULL) |
1473 | return *sp; | |
714835d5 | 1474 | return NULL; |
c906108c | 1475 | } |
c5aa993b | 1476 | |
c906108c | 1477 | |
3e5d3a5a | 1478 | /* Return non-zero if PC is in a section called NAME. */ |
c906108c SS |
1479 | |
1480 | int | |
a121b7c1 | 1481 | pc_in_section (CORE_ADDR pc, const char *name) |
c906108c SS |
1482 | { |
1483 | struct obj_section *s; | |
1484 | int retval = 0; | |
c5aa993b JM |
1485 | |
1486 | s = find_pc_section (pc); | |
1487 | ||
c906108c SS |
1488 | retval = (s != NULL |
1489 | && s->the_bfd_section->name != NULL | |
3e5d3a5a | 1490 | && strcmp (s->the_bfd_section->name, name) == 0); |
c5aa993b | 1491 | return (retval); |
c906108c | 1492 | } |
0d0e1a63 MK |
1493 | \f |
1494 | ||
607ece04 | 1495 | /* Set section_map_dirty so section map will be rebuilt next time it |
bb272892 | 1496 | is used. Called by reread_symbols. */ |
a845f5cb PP |
1497 | |
1498 | void | |
bb272892 | 1499 | objfiles_changed (void) |
a845f5cb | 1500 | { |
6c95b8df | 1501 | /* Rebuild section map next time we need it. */ |
607ece04 GB |
1502 | get_objfile_pspace_data (current_program_space)->section_map_dirty = 1; |
1503 | } | |
1504 | ||
1505 | /* See comments in objfiles.h. */ | |
1506 | ||
1507 | void | |
1508 | inhibit_section_map_updates (struct program_space *pspace) | |
1509 | { | |
1510 | get_objfile_pspace_data (pspace)->inhibit_updates = 1; | |
1511 | } | |
1512 | ||
1513 | /* See comments in objfiles.h. */ | |
1514 | ||
1515 | void | |
1516 | resume_section_map_updates (struct program_space *pspace) | |
1517 | { | |
1518 | get_objfile_pspace_data (pspace)->inhibit_updates = 0; | |
1519 | } | |
1520 | ||
1521 | /* See comments in objfiles.h. */ | |
1522 | ||
1523 | void | |
1524 | resume_section_map_updates_cleanup (void *arg) | |
1525 | { | |
19ba03f4 | 1526 | resume_section_map_updates ((struct program_space *) arg); |
a845f5cb | 1527 | } |
e3c69974 | 1528 | |
63644780 NB |
1529 | /* Return 1 if ADDR maps into one of the sections of OBJFILE and 0 |
1530 | otherwise. */ | |
1531 | ||
1532 | int | |
1533 | is_addr_in_objfile (CORE_ADDR addr, const struct objfile *objfile) | |
1534 | { | |
1535 | struct obj_section *osect; | |
1536 | ||
1537 | if (objfile == NULL) | |
1538 | return 0; | |
1539 | ||
1540 | ALL_OBJFILE_OSECTIONS (objfile, osect) | |
1541 | { | |
1542 | if (section_is_overlay (osect) && !section_is_mapped (osect)) | |
1543 | continue; | |
1544 | ||
1545 | if (obj_section_addr (osect) <= addr | |
1546 | && addr < obj_section_endaddr (osect)) | |
1547 | return 1; | |
1548 | } | |
1549 | return 0; | |
1550 | } | |
1551 | ||
08351840 | 1552 | int |
d03de421 PA |
1553 | shared_objfile_contains_address_p (struct program_space *pspace, |
1554 | CORE_ADDR address) | |
08351840 PA |
1555 | { |
1556 | struct objfile *objfile; | |
1557 | ||
1558 | ALL_PSPACE_OBJFILES (pspace, objfile) | |
1559 | { | |
d03de421 | 1560 | if ((objfile->flags & OBJF_SHARED) != 0 |
08351840 PA |
1561 | && is_addr_in_objfile (address, objfile)) |
1562 | return 1; | |
1563 | } | |
1564 | ||
1565 | return 0; | |
1566 | } | |
1567 | ||
19630284 JB |
1568 | /* The default implementation for the "iterate_over_objfiles_in_search_order" |
1569 | gdbarch method. It is equivalent to use the ALL_OBJFILES macro, | |
1570 | searching the objfiles in the order they are stored internally, | |
1571 | ignoring CURRENT_OBJFILE. | |
1572 | ||
1573 | On most platorms, it should be close enough to doing the best | |
1574 | we can without some knowledge specific to the architecture. */ | |
1575 | ||
1576 | void | |
1577 | default_iterate_over_objfiles_in_search_order | |
1578 | (struct gdbarch *gdbarch, | |
1579 | iterate_over_objfiles_in_search_order_cb_ftype *cb, | |
1580 | void *cb_data, struct objfile *current_objfile) | |
1581 | { | |
1582 | int stop = 0; | |
1583 | struct objfile *objfile; | |
1584 | ||
1585 | ALL_OBJFILES (objfile) | |
1586 | { | |
1587 | stop = cb (objfile, cb_data); | |
1588 | if (stop) | |
1589 | return; | |
1590 | } | |
1591 | } | |
1592 | ||
e02c96a7 | 1593 | /* See objfiles.h. */ |
4262abfb JK |
1594 | |
1595 | const char * | |
1596 | objfile_name (const struct objfile *objfile) | |
1597 | { | |
24ba069a JK |
1598 | if (objfile->obfd != NULL) |
1599 | return bfd_get_filename (objfile->obfd); | |
1600 | ||
4262abfb JK |
1601 | return objfile->original_name; |
1602 | } | |
1603 | ||
cc485e62 DE |
1604 | /* See objfiles.h. */ |
1605 | ||
e02c96a7 DE |
1606 | const char * |
1607 | objfile_filename (const struct objfile *objfile) | |
1608 | { | |
1609 | if (objfile->obfd != NULL) | |
1610 | return bfd_get_filename (objfile->obfd); | |
1611 | ||
1612 | return NULL; | |
1613 | } | |
1614 | ||
1615 | /* See objfiles.h. */ | |
1616 | ||
cc485e62 DE |
1617 | const char * |
1618 | objfile_debug_name (const struct objfile *objfile) | |
1619 | { | |
1620 | return lbasename (objfile->original_name); | |
1621 | } | |
1622 | ||
015d2e7e DE |
1623 | /* See objfiles.h. */ |
1624 | ||
1625 | const char * | |
1626 | objfile_flavour_name (struct objfile *objfile) | |
1627 | { | |
1628 | if (objfile->obfd != NULL) | |
1629 | return bfd_flavour_name (bfd_get_flavour (objfile->obfd)); | |
1630 | return NULL; | |
1631 | } | |
1632 | ||
6c95b8df PA |
1633 | void |
1634 | _initialize_objfiles (void) | |
1635 | { | |
1636 | objfiles_pspace_data | |
8e260fc0 TT |
1637 | = register_program_space_data_with_cleanup (NULL, |
1638 | objfiles_pspace_data_cleanup); | |
706e3705 TT |
1639 | |
1640 | objfiles_bfd_data = register_bfd_data_with_cleanup (NULL, | |
1641 | objfile_bfd_data_free); | |
6c95b8df | 1642 | } |