Commit | Line | Data |
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c906108c | 1 | /* GDB routines for manipulating objfiles. |
af5f3db6 | 2 | |
32d0add0 | 3 | Copyright (C) 1992-2015 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 | |
8e260fc0 TT |
56 | /* Keep a registry of per-objfile data-pointers required by other GDB |
57 | modules. */ | |
c906108c | 58 | |
6b81941e | 59 | DEFINE_REGISTRY (objfile, REGISTRY_ACCESS_FIELD) |
0d0e1a63 | 60 | |
c906108c | 61 | /* Externally visible variables that are owned by this module. |
0df8b418 | 62 | See declarations in objfile.h for more info. */ |
c906108c | 63 | |
6c95b8df PA |
64 | struct objfile_pspace_info |
65 | { | |
6c95b8df PA |
66 | struct obj_section **sections; |
67 | int num_sections; | |
607ece04 GB |
68 | |
69 | /* Nonzero if object files have been added since the section map | |
70 | was last updated. */ | |
71 | int new_objfiles_available; | |
72 | ||
73 | /* Nonzero if the section map MUST be updated before use. */ | |
74 | int section_map_dirty; | |
75 | ||
76 | /* Nonzero if section map updates should be inhibited if possible. */ | |
77 | int inhibit_updates; | |
6c95b8df PA |
78 | }; |
79 | ||
80 | /* Per-program-space data key. */ | |
81 | static const struct program_space_data *objfiles_pspace_data; | |
82 | ||
83 | static void | |
84 | objfiles_pspace_data_cleanup (struct program_space *pspace, void *arg) | |
85 | { | |
487ad57c | 86 | struct objfile_pspace_info *info = arg; |
6c95b8df | 87 | |
487ad57c YQ |
88 | xfree (info->sections); |
89 | xfree (info); | |
6c95b8df PA |
90 | } |
91 | ||
92 | /* Get the current svr4 data. If none is found yet, add it now. This | |
93 | function always returns a valid object. */ | |
94 | ||
95 | static struct objfile_pspace_info * | |
96 | get_objfile_pspace_data (struct program_space *pspace) | |
97 | { | |
98 | struct objfile_pspace_info *info; | |
99 | ||
100 | info = program_space_data (pspace, objfiles_pspace_data); | |
101 | if (info == NULL) | |
102 | { | |
41bf6aca | 103 | info = XCNEW (struct objfile_pspace_info); |
6c95b8df PA |
104 | set_program_space_data (pspace, objfiles_pspace_data, info); |
105 | } | |
106 | ||
107 | return info; | |
108 | } | |
109 | ||
706e3705 TT |
110 | \f |
111 | ||
112 | /* Per-BFD data key. */ | |
113 | ||
114 | static const struct bfd_data *objfiles_bfd_data; | |
115 | ||
116 | /* Create the per-BFD storage object for OBJFILE. If ABFD is not | |
117 | NULL, and it already has a per-BFD storage object, use that. | |
118 | Otherwise, allocate a new per-BFD storage object. If ABFD is not | |
119 | NULL, the object is allocated on the BFD; otherwise it is allocated | |
120 | on OBJFILE's obstack. Note that it is not safe to call this | |
121 | multiple times for a given OBJFILE -- it can only be called when | |
122 | allocating or re-initializing OBJFILE. */ | |
123 | ||
124 | static struct objfile_per_bfd_storage * | |
125 | get_objfile_bfd_data (struct objfile *objfile, struct bfd *abfd) | |
126 | { | |
127 | struct objfile_per_bfd_storage *storage = NULL; | |
128 | ||
129 | if (abfd != NULL) | |
130 | storage = bfd_data (abfd, objfiles_bfd_data); | |
131 | ||
132 | if (storage == NULL) | |
133 | { | |
1da77581 TT |
134 | /* If the object requires gdb to do relocations, we simply fall |
135 | back to not sharing data across users. These cases are rare | |
136 | enough that this seems reasonable. */ | |
137 | if (abfd != NULL && !gdb_bfd_requires_relocations (abfd)) | |
706e3705 TT |
138 | { |
139 | storage = bfd_zalloc (abfd, sizeof (struct objfile_per_bfd_storage)); | |
140 | set_bfd_data (abfd, objfiles_bfd_data, storage); | |
141 | } | |
142 | else | |
143 | storage = OBSTACK_ZALLOC (&objfile->objfile_obstack, | |
144 | struct objfile_per_bfd_storage); | |
145 | ||
1da77581 TT |
146 | /* Look up the gdbarch associated with the BFD. */ |
147 | if (abfd != NULL) | |
148 | storage->gdbarch = gdbarch_from_bfd (abfd); | |
149 | ||
706e3705 TT |
150 | obstack_init (&storage->storage_obstack); |
151 | storage->filename_cache = bcache_xmalloc (NULL, NULL); | |
6532ff36 | 152 | storage->macro_cache = bcache_xmalloc (NULL, NULL); |
3d548a53 | 153 | storage->language_of_main = language_unknown; |
706e3705 TT |
154 | } |
155 | ||
156 | return storage; | |
157 | } | |
158 | ||
159 | /* Free STORAGE. */ | |
160 | ||
161 | static void | |
162 | free_objfile_per_bfd_storage (struct objfile_per_bfd_storage *storage) | |
163 | { | |
164 | bcache_xfree (storage->filename_cache); | |
6532ff36 | 165 | bcache_xfree (storage->macro_cache); |
84a1243b TT |
166 | if (storage->demangled_names_hash) |
167 | htab_delete (storage->demangled_names_hash); | |
706e3705 TT |
168 | obstack_free (&storage->storage_obstack, 0); |
169 | } | |
170 | ||
171 | /* A wrapper for free_objfile_per_bfd_storage that can be passed as a | |
172 | cleanup function to the BFD registry. */ | |
173 | ||
174 | static void | |
175 | objfile_bfd_data_free (struct bfd *unused, void *d) | |
176 | { | |
177 | free_objfile_per_bfd_storage (d); | |
178 | } | |
179 | ||
180 | /* See objfiles.h. */ | |
181 | ||
182 | void | |
183 | set_objfile_per_bfd (struct objfile *objfile) | |
184 | { | |
185 | objfile->per_bfd = get_objfile_bfd_data (objfile, objfile->obfd); | |
186 | } | |
187 | ||
3d548a53 TT |
188 | /* Set the objfile's per-BFD notion of the "main" name and |
189 | language. */ | |
190 | ||
191 | void | |
192 | set_objfile_main_name (struct objfile *objfile, | |
193 | const char *name, enum language lang) | |
194 | { | |
195 | if (objfile->per_bfd->name_of_main == NULL | |
196 | || strcmp (objfile->per_bfd->name_of_main, name) != 0) | |
197 | objfile->per_bfd->name_of_main | |
198 | = obstack_copy0 (&objfile->per_bfd->storage_obstack, name, strlen (name)); | |
199 | objfile->per_bfd->language_of_main = lang; | |
200 | } | |
201 | ||
63e43d3a PMR |
202 | /* Helper structure to map blocks to static link properties in hash tables. */ |
203 | ||
204 | struct static_link_htab_entry | |
205 | { | |
206 | const struct block *block; | |
207 | const struct dynamic_prop *static_link; | |
208 | }; | |
209 | ||
210 | /* Return a hash code for struct static_link_htab_entry *P. */ | |
211 | ||
212 | static hashval_t | |
213 | static_link_htab_entry_hash (const void *p) | |
214 | { | |
215 | const struct static_link_htab_entry *e | |
216 | = (const struct static_link_htab_entry *) p; | |
217 | ||
218 | return htab_hash_pointer (e->block); | |
219 | } | |
220 | ||
221 | /* Return whether P1 an P2 (pointers to struct static_link_htab_entry) are | |
222 | mappings for the same block. */ | |
223 | ||
224 | static int | |
225 | static_link_htab_entry_eq (const void *p1, const void *p2) | |
226 | { | |
227 | const struct static_link_htab_entry *e1 | |
228 | = (const struct static_link_htab_entry *) p1; | |
229 | const struct static_link_htab_entry *e2 | |
230 | = (const struct static_link_htab_entry *) p2; | |
231 | ||
232 | return e1->block == e2->block; | |
233 | } | |
234 | ||
235 | /* Register STATIC_LINK as the static link for BLOCK, which is part of OBJFILE. | |
236 | Must not be called more than once for each BLOCK. */ | |
237 | ||
238 | void | |
239 | objfile_register_static_link (struct objfile *objfile, | |
240 | const struct block *block, | |
241 | const struct dynamic_prop *static_link) | |
242 | { | |
243 | void **slot; | |
244 | struct static_link_htab_entry lookup_entry; | |
245 | struct static_link_htab_entry *entry; | |
246 | ||
247 | if (objfile->static_links == NULL) | |
248 | objfile->static_links = htab_create_alloc | |
249 | (1, &static_link_htab_entry_hash, static_link_htab_entry_eq, NULL, | |
250 | xcalloc, xfree); | |
251 | ||
252 | /* Create a slot for the mapping, make sure it's the first mapping for this | |
253 | block and then create the mapping itself. */ | |
254 | lookup_entry.block = block; | |
255 | slot = htab_find_slot (objfile->static_links, &lookup_entry, INSERT); | |
256 | gdb_assert (*slot == NULL); | |
257 | ||
258 | entry = (struct static_link_htab_entry *) obstack_alloc | |
259 | (&objfile->objfile_obstack, sizeof (*entry)); | |
260 | entry->block = block; | |
261 | entry->static_link = static_link; | |
262 | *slot = (void *) entry; | |
263 | } | |
264 | ||
265 | /* Look for a static link for BLOCK, which is part of OBJFILE. Return NULL if | |
266 | none was found. */ | |
267 | ||
268 | const struct dynamic_prop * | |
269 | objfile_lookup_static_link (struct objfile *objfile, | |
270 | const struct block *block) | |
271 | { | |
272 | struct static_link_htab_entry *entry; | |
273 | struct static_link_htab_entry lookup_entry; | |
274 | ||
275 | if (objfile->static_links == NULL) | |
276 | return NULL; | |
277 | lookup_entry.block = block; | |
278 | entry | |
279 | = (struct static_link_htab_entry *) htab_find (objfile->static_links, | |
280 | &lookup_entry); | |
281 | if (entry == NULL) | |
282 | return NULL; | |
283 | ||
284 | gdb_assert (entry->block == block); | |
285 | return entry->static_link; | |
286 | } | |
287 | ||
706e3705 TT |
288 | \f |
289 | ||
96baa820 JM |
290 | /* Called via bfd_map_over_sections to build up the section table that |
291 | the objfile references. The objfile contains pointers to the start | |
292 | of the table (objfile->sections) and to the first location after | |
0df8b418 | 293 | the end of the table (objfile->sections_end). */ |
96baa820 | 294 | |
65cf3563 TT |
295 | static void |
296 | add_to_objfile_sections_full (struct bfd *abfd, struct bfd_section *asect, | |
297 | struct objfile *objfile, int force) | |
298 | { | |
299 | struct obj_section *section; | |
300 | ||
301 | if (!force) | |
302 | { | |
303 | flagword aflag; | |
304 | ||
305 | aflag = bfd_get_section_flags (abfd, asect); | |
306 | if (!(aflag & SEC_ALLOC)) | |
307 | return; | |
308 | } | |
309 | ||
310 | section = &objfile->sections[gdb_bfd_section_index (abfd, asect)]; | |
311 | section->objfile = objfile; | |
312 | section->the_bfd_section = asect; | |
313 | section->ovly_mapped = 0; | |
314 | } | |
315 | ||
c906108c | 316 | static void |
7be0c536 | 317 | add_to_objfile_sections (struct bfd *abfd, struct bfd_section *asect, |
d82ea6a8 | 318 | void *objfilep) |
c906108c | 319 | { |
65cf3563 | 320 | add_to_objfile_sections_full (abfd, asect, objfilep, 0); |
c906108c SS |
321 | } |
322 | ||
323 | /* Builds a section table for OBJFILE. | |
96baa820 | 324 | |
65cf3563 TT |
325 | Note that the OFFSET and OVLY_MAPPED in each table entry are |
326 | initialized to zero. */ | |
c906108c | 327 | |
d82ea6a8 | 328 | void |
fba45db2 | 329 | build_objfile_section_table (struct objfile *objfile) |
c906108c | 330 | { |
65cf3563 TT |
331 | int count = gdb_bfd_count_sections (objfile->obfd); |
332 | ||
333 | objfile->sections = OBSTACK_CALLOC (&objfile->objfile_obstack, | |
334 | count, | |
335 | struct obj_section); | |
336 | objfile->sections_end = (objfile->sections + count); | |
f1f6aadf PA |
337 | bfd_map_over_sections (objfile->obfd, |
338 | add_to_objfile_sections, (void *) objfile); | |
65cf3563 TT |
339 | |
340 | /* See gdb_bfd_section_index. */ | |
341 | add_to_objfile_sections_full (objfile->obfd, bfd_com_section_ptr, objfile, 1); | |
342 | add_to_objfile_sections_full (objfile->obfd, bfd_und_section_ptr, objfile, 1); | |
343 | add_to_objfile_sections_full (objfile->obfd, bfd_abs_section_ptr, objfile, 1); | |
344 | add_to_objfile_sections_full (objfile->obfd, bfd_ind_section_ptr, objfile, 1); | |
c906108c SS |
345 | } |
346 | ||
2df3850c JM |
347 | /* Given a pointer to an initialized bfd (ABFD) and some flag bits |
348 | allocate a new objfile struct, fill it in as best we can, link it | |
349 | into the list of all known objfiles, and return a pointer to the | |
350 | new objfile struct. | |
c906108c | 351 | |
24ba069a JK |
352 | NAME should contain original non-canonicalized filename or other |
353 | identifier as entered by user. If there is no better source use | |
354 | bfd_get_filename (ABFD). NAME may be NULL only if ABFD is NULL. | |
355 | NAME content is copied into returned objfile. | |
356 | ||
2df3850c | 357 | The FLAGS word contains various bits (OBJF_*) that can be taken as |
78a4a9b9 | 358 | requests for specific operations. Other bits like OBJF_SHARED are |
0df8b418 | 359 | simply copied through to the new objfile flags member. */ |
c906108c | 360 | |
eb9a305d DC |
361 | /* NOTE: carlton/2003-02-04: This function is called with args NULL, 0 |
362 | by jv-lang.c, to create an artificial objfile used to hold | |
363 | information about dynamically-loaded Java classes. Unfortunately, | |
364 | that branch of this function doesn't get tested very frequently, so | |
365 | it's prone to breakage. (E.g. at one time the name was set to NULL | |
366 | in that situation, which broke a loop over all names in the dynamic | |
367 | library loader.) If you change this function, please try to leave | |
368 | things in a consistent state even if abfd is NULL. */ | |
369 | ||
c906108c | 370 | struct objfile * |
24ba069a | 371 | allocate_objfile (bfd *abfd, const char *name, int flags) |
c906108c | 372 | { |
2f6e5d7e | 373 | struct objfile *objfile; |
04affae3 | 374 | char *expanded_name; |
c906108c | 375 | |
8d749320 | 376 | objfile = XCNEW (struct objfile); |
710e1a31 | 377 | objfile->psymbol_cache = psymbol_bcache_init (); |
2f6e5d7e TG |
378 | /* We could use obstack_specify_allocation here instead, but |
379 | gdb_obstack.h specifies the alloc/dealloc functions. */ | |
380 | obstack_init (&objfile->objfile_obstack); | |
c906108c | 381 | |
0d0e1a63 MK |
382 | objfile_alloc_data (objfile); |
383 | ||
24ba069a JK |
384 | if (name == NULL) |
385 | { | |
386 | gdb_assert (abfd == NULL); | |
40135bb1 | 387 | gdb_assert ((flags & OBJF_NOT_FILENAME) != 0); |
04affae3 | 388 | expanded_name = xstrdup ("<<anonymous objfile>>"); |
24ba069a | 389 | } |
5fbae7d1 GB |
390 | else if ((flags & OBJF_NOT_FILENAME) != 0 |
391 | || is_target_filename (name)) | |
04affae3 JK |
392 | expanded_name = xstrdup (name); |
393 | else | |
394 | expanded_name = gdb_abspath (name); | |
395 | objfile->original_name = obstack_copy0 (&objfile->objfile_obstack, | |
396 | expanded_name, | |
397 | strlen (expanded_name)); | |
398 | xfree (expanded_name); | |
399 | ||
d3e81981 DE |
400 | /* Update the per-objfile information that comes from the bfd, ensuring |
401 | that any data that is reference is saved in the per-objfile data | |
402 | region. */ | |
403 | ||
cbb099e8 | 404 | objfile->obfd = abfd; |
8ac244b4 | 405 | gdb_bfd_ref (abfd); |
c906108c SS |
406 | if (abfd != NULL) |
407 | { | |
c5aa993b | 408 | objfile->mtime = bfd_get_mtime (abfd); |
c906108c SS |
409 | |
410 | /* Build section table. */ | |
d82ea6a8 | 411 | build_objfile_section_table (objfile); |
c906108c SS |
412 | } |
413 | ||
706e3705 | 414 | objfile->per_bfd = get_objfile_bfd_data (objfile, abfd); |
6c95b8df PA |
415 | objfile->pspace = current_program_space; |
416 | ||
34643a32 TT |
417 | terminate_minimal_symbol_table (objfile); |
418 | ||
b8fbeb18 | 419 | /* Initialize the section indexes for this objfile, so that we can |
0df8b418 | 420 | later detect if they are used w/o being properly assigned to. */ |
b8fbeb18 | 421 | |
5c4e30ca DC |
422 | objfile->sect_index_text = -1; |
423 | objfile->sect_index_data = -1; | |
424 | objfile->sect_index_bss = -1; | |
425 | objfile->sect_index_rodata = -1; | |
426 | ||
0df8b418 | 427 | /* Add this file onto the tail of the linked list of other such files. */ |
c906108c | 428 | |
c5aa993b | 429 | objfile->next = NULL; |
c906108c SS |
430 | if (object_files == NULL) |
431 | object_files = objfile; | |
432 | else | |
433 | { | |
2f6e5d7e TG |
434 | struct objfile *last_one; |
435 | ||
c906108c | 436 | for (last_one = object_files; |
c5aa993b JM |
437 | last_one->next; |
438 | last_one = last_one->next); | |
439 | last_one->next = objfile; | |
c906108c SS |
440 | } |
441 | ||
0df8b418 | 442 | /* Save passed in flag bits. */ |
2df3850c | 443 | objfile->flags |= flags; |
c906108c | 444 | |
6c95b8df | 445 | /* Rebuild section map next time we need it. */ |
607ece04 | 446 | get_objfile_pspace_data (objfile->pspace)->new_objfiles_available = 1; |
bb272892 | 447 | |
6c95b8df | 448 | return objfile; |
c906108c SS |
449 | } |
450 | ||
5e2b427d | 451 | /* Retrieve the gdbarch associated with OBJFILE. */ |
9c1877ea | 452 | |
5e2b427d | 453 | struct gdbarch * |
9c1877ea | 454 | get_objfile_arch (const struct objfile *objfile) |
5e2b427d | 455 | { |
df6d5441 | 456 | return objfile->per_bfd->gdbarch; |
5e2b427d UW |
457 | } |
458 | ||
abd0a5fa JK |
459 | /* If there is a valid and known entry point, function fills *ENTRY_P with it |
460 | and returns non-zero; otherwise it returns zero. */ | |
9ab9195f | 461 | |
abd0a5fa JK |
462 | int |
463 | entry_point_address_query (CORE_ADDR *entry_p) | |
9ab9195f | 464 | { |
6ef55de7 | 465 | if (symfile_objfile == NULL || !symfile_objfile->per_bfd->ei.entry_point_p) |
3612b192 DJ |
466 | return 0; |
467 | ||
6ef55de7 | 468 | *entry_p = (symfile_objfile->per_bfd->ei.entry_point |
53eddfa6 | 469 | + ANOFFSET (symfile_objfile->section_offsets, |
6ef55de7 | 470 | symfile_objfile->per_bfd->ei.the_bfd_section_index)); |
3612b192 | 471 | |
abd0a5fa JK |
472 | return 1; |
473 | } | |
474 | ||
475 | /* Get current entry point address. Call error if it is not known. */ | |
476 | ||
477 | CORE_ADDR | |
478 | entry_point_address (void) | |
479 | { | |
480 | CORE_ADDR retval; | |
481 | ||
482 | if (!entry_point_address_query (&retval)) | |
483 | error (_("Entry point address is not known.")); | |
484 | ||
485 | return retval; | |
9ab9195f | 486 | } |
15831452 | 487 | |
15d123c9 TG |
488 | /* Iterator on PARENT and every separate debug objfile of PARENT. |
489 | The usage pattern is: | |
490 | for (objfile = parent; | |
491 | objfile; | |
492 | objfile = objfile_separate_debug_iterate (parent, objfile)) | |
493 | ... | |
494 | */ | |
495 | ||
496 | struct objfile * | |
497 | objfile_separate_debug_iterate (const struct objfile *parent, | |
498 | const struct objfile *objfile) | |
499 | { | |
500 | struct objfile *res; | |
501 | ||
399f313b | 502 | /* If any, return the first child. */ |
15d123c9 TG |
503 | res = objfile->separate_debug_objfile; |
504 | if (res) | |
505 | return res; | |
506 | ||
15d123c9 TG |
507 | /* Common case where there is no separate debug objfile. */ |
508 | if (objfile == parent) | |
509 | return NULL; | |
510 | ||
399f313b TG |
511 | /* Return the brother if any. Note that we don't iterate on brothers of |
512 | the parents. */ | |
513 | res = objfile->separate_debug_objfile_link; | |
514 | if (res) | |
515 | return res; | |
516 | ||
15d123c9 TG |
517 | for (res = objfile->separate_debug_objfile_backlink; |
518 | res != parent; | |
519 | res = res->separate_debug_objfile_backlink) | |
520 | { | |
521 | gdb_assert (res != NULL); | |
522 | if (res->separate_debug_objfile_link) | |
523 | return res->separate_debug_objfile_link; | |
524 | } | |
525 | return NULL; | |
526 | } | |
15831452 | 527 | |
5b5d99cf JB |
528 | /* Put one object file before a specified on in the global list. |
529 | This can be used to make sure an object file is destroyed before | |
0df8b418 | 530 | another when using ALL_OBJFILES_SAFE to free all objfiles. */ |
5b5d99cf JB |
531 | void |
532 | put_objfile_before (struct objfile *objfile, struct objfile *before_this) | |
533 | { | |
534 | struct objfile **objp; | |
535 | ||
536 | unlink_objfile (objfile); | |
537 | ||
538 | for (objp = &object_files; *objp != NULL; objp = &((*objp)->next)) | |
539 | { | |
540 | if (*objp == before_this) | |
541 | { | |
542 | objfile->next = *objp; | |
543 | *objp = objfile; | |
544 | return; | |
545 | } | |
546 | } | |
547 | ||
548 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 549 | _("put_objfile_before: before objfile not in list")); |
5b5d99cf JB |
550 | } |
551 | ||
c906108c SS |
552 | /* Unlink OBJFILE from the list of known objfiles, if it is found in the |
553 | list. | |
554 | ||
555 | It is not a bug, or error, to call this function if OBJFILE is not known | |
556 | to be in the current list. This is done in the case of mapped objfiles, | |
557 | for example, just to ensure that the mapped objfile doesn't appear twice | |
558 | in the list. Since the list is threaded, linking in a mapped objfile | |
559 | twice would create a circular list. | |
560 | ||
561 | If OBJFILE turns out to be in the list, we zap it's NEXT pointer after | |
562 | unlinking it, just to ensure that we have completely severed any linkages | |
0df8b418 | 563 | between the OBJFILE and the list. */ |
c906108c SS |
564 | |
565 | void | |
fba45db2 | 566 | unlink_objfile (struct objfile *objfile) |
c906108c | 567 | { |
c5aa993b | 568 | struct objfile **objpp; |
c906108c | 569 | |
c5aa993b | 570 | for (objpp = &object_files; *objpp != NULL; objpp = &((*objpp)->next)) |
c906108c | 571 | { |
c5aa993b | 572 | if (*objpp == objfile) |
c906108c | 573 | { |
c5aa993b JM |
574 | *objpp = (*objpp)->next; |
575 | objfile->next = NULL; | |
07cd4b97 | 576 | return; |
c906108c SS |
577 | } |
578 | } | |
07cd4b97 | 579 | |
8e65ff28 | 580 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 581 | _("unlink_objfile: objfile already unlinked")); |
c906108c SS |
582 | } |
583 | ||
15d123c9 TG |
584 | /* Add OBJFILE as a separate debug objfile of PARENT. */ |
585 | ||
586 | void | |
587 | add_separate_debug_objfile (struct objfile *objfile, struct objfile *parent) | |
588 | { | |
589 | gdb_assert (objfile && parent); | |
590 | ||
591 | /* Must not be already in a list. */ | |
592 | gdb_assert (objfile->separate_debug_objfile_backlink == NULL); | |
593 | gdb_assert (objfile->separate_debug_objfile_link == NULL); | |
8a92335b JK |
594 | gdb_assert (objfile->separate_debug_objfile == NULL); |
595 | gdb_assert (parent->separate_debug_objfile_backlink == NULL); | |
596 | gdb_assert (parent->separate_debug_objfile_link == NULL); | |
15d123c9 TG |
597 | |
598 | objfile->separate_debug_objfile_backlink = parent; | |
599 | objfile->separate_debug_objfile_link = parent->separate_debug_objfile; | |
600 | parent->separate_debug_objfile = objfile; | |
601 | ||
602 | /* Put the separate debug object before the normal one, this is so that | |
0df8b418 | 603 | usage of the ALL_OBJFILES_SAFE macro will stay safe. */ |
15d123c9 TG |
604 | put_objfile_before (objfile, parent); |
605 | } | |
606 | ||
607 | /* Free all separate debug objfile of OBJFILE, but don't free OBJFILE | |
608 | itself. */ | |
609 | ||
610 | void | |
611 | free_objfile_separate_debug (struct objfile *objfile) | |
612 | { | |
613 | struct objfile *child; | |
614 | ||
615 | for (child = objfile->separate_debug_objfile; child;) | |
616 | { | |
617 | struct objfile *next_child = child->separate_debug_objfile_link; | |
618 | free_objfile (child); | |
619 | child = next_child; | |
620 | } | |
621 | } | |
c906108c | 622 | |
7580e917 | 623 | /* Destroy an objfile and all the symtabs and psymtabs under it. */ |
c906108c SS |
624 | |
625 | void | |
fba45db2 | 626 | free_objfile (struct objfile *objfile) |
c906108c | 627 | { |
63644780 NB |
628 | /* First notify observers that this objfile is about to be freed. */ |
629 | observer_notify_free_objfile (objfile); | |
630 | ||
15d123c9 TG |
631 | /* Free all separate debug objfiles. */ |
632 | free_objfile_separate_debug (objfile); | |
633 | ||
5b5d99cf JB |
634 | if (objfile->separate_debug_objfile_backlink) |
635 | { | |
636 | /* We freed the separate debug file, make sure the base objfile | |
637 | doesn't reference it. */ | |
15d123c9 TG |
638 | struct objfile *child; |
639 | ||
640 | child = objfile->separate_debug_objfile_backlink->separate_debug_objfile; | |
641 | ||
642 | if (child == objfile) | |
643 | { | |
644 | /* OBJFILE is the first child. */ | |
645 | objfile->separate_debug_objfile_backlink->separate_debug_objfile = | |
646 | objfile->separate_debug_objfile_link; | |
647 | } | |
648 | else | |
649 | { | |
650 | /* Find OBJFILE in the list. */ | |
651 | while (1) | |
652 | { | |
653 | if (child->separate_debug_objfile_link == objfile) | |
654 | { | |
655 | child->separate_debug_objfile_link = | |
656 | objfile->separate_debug_objfile_link; | |
657 | break; | |
658 | } | |
659 | child = child->separate_debug_objfile_link; | |
660 | gdb_assert (child); | |
661 | } | |
662 | } | |
5b5d99cf JB |
663 | } |
664 | ||
ae5a43e0 DJ |
665 | /* Remove any references to this objfile in the global value |
666 | lists. */ | |
667 | preserve_values (objfile); | |
668 | ||
9f743ef6 JK |
669 | /* It still may reference data modules have associated with the objfile and |
670 | the symbol file data. */ | |
671 | forget_cached_source_info_for_objfile (objfile); | |
672 | ||
2f202fde | 673 | breakpoint_free_objfile (objfile); |
afedecd3 | 674 | btrace_free_objfile (objfile); |
2f202fde | 675 | |
c906108c SS |
676 | /* First do any symbol file specific actions required when we are |
677 | finished with a particular symbol file. Note that if the objfile | |
678 | is using reusable symbol information (via mmalloc) then each of | |
679 | these routines is responsible for doing the correct thing, either | |
680 | freeing things which are valid only during this particular gdb | |
0df8b418 | 681 | execution, or leaving them to be reused during the next one. */ |
c906108c | 682 | |
c5aa993b | 683 | if (objfile->sf != NULL) |
c906108c | 684 | { |
c5aa993b | 685 | (*objfile->sf->sym_finish) (objfile); |
c906108c SS |
686 | } |
687 | ||
9f743ef6 JK |
688 | /* Discard any data modules have associated with the objfile. The function |
689 | still may reference objfile->obfd. */ | |
c5bc3a77 DJ |
690 | objfile_free_data (objfile); |
691 | ||
706e3705 TT |
692 | if (objfile->obfd) |
693 | gdb_bfd_unref (objfile->obfd); | |
694 | else | |
695 | free_objfile_per_bfd_storage (objfile->per_bfd); | |
c906108c | 696 | |
0df8b418 | 697 | /* Remove it from the chain of all objfiles. */ |
c906108c SS |
698 | |
699 | unlink_objfile (objfile); | |
700 | ||
adb7f338 JK |
701 | if (objfile == symfile_objfile) |
702 | symfile_objfile = NULL; | |
c906108c | 703 | |
c906108c SS |
704 | /* Before the symbol table code was redone to make it easier to |
705 | selectively load and remove information particular to a specific | |
706 | linkage unit, gdb used to do these things whenever the monolithic | |
707 | symbol table was blown away. How much still needs to be done | |
708 | is unknown, but we play it safe for now and keep each action until | |
0df8b418 | 709 | it is shown to be no longer needed. */ |
c5aa993b | 710 | |
cb5d864f FF |
711 | /* Not all our callers call clear_symtab_users (objfile_purge_solibs, |
712 | for example), so we need to call this here. */ | |
c906108c SS |
713 | clear_pc_function_cache (); |
714 | ||
9bdcbae7 DJ |
715 | /* Clear globals which might have pointed into a removed objfile. |
716 | FIXME: It's not clear which of these are supposed to persist | |
717 | between expressions and which ought to be reset each time. */ | |
718 | expression_context_block = NULL; | |
719 | innermost_block = NULL; | |
720 | ||
cb5d864f | 721 | /* Check to see if the current_source_symtab belongs to this objfile, |
0df8b418 | 722 | and if so, call clear_current_source_symtab_and_line. */ |
cb5d864f FF |
723 | |
724 | { | |
725 | struct symtab_and_line cursal = get_current_source_symtab_and_line (); | |
cb5d864f | 726 | |
eb822aa6 | 727 | if (cursal.symtab && SYMTAB_OBJFILE (cursal.symtab) == objfile) |
00174a86 | 728 | clear_current_source_symtab_and_line (); |
cb5d864f FF |
729 | } |
730 | ||
78a4a9b9 | 731 | if (objfile->global_psymbols.list) |
2dc74dc1 | 732 | xfree (objfile->global_psymbols.list); |
78a4a9b9 | 733 | if (objfile->static_psymbols.list) |
2dc74dc1 | 734 | xfree (objfile->static_psymbols.list); |
0df8b418 | 735 | /* Free the obstacks for non-reusable objfiles. */ |
710e1a31 | 736 | psymbol_bcache_free (objfile->psymbol_cache); |
b99607ea | 737 | obstack_free (&objfile->objfile_obstack, 0); |
6c95b8df PA |
738 | |
739 | /* Rebuild section map next time we need it. */ | |
607ece04 | 740 | get_objfile_pspace_data (objfile->pspace)->section_map_dirty = 1; |
6c95b8df | 741 | |
63e43d3a PMR |
742 | /* Free the map for static links. There's no need to free static link |
743 | themselves since they were allocated on the objstack. */ | |
744 | if (objfile->static_links != NULL) | |
745 | htab_delete (objfile->static_links); | |
746 | ||
020f7036 | 747 | /* The last thing we do is free the objfile struct itself. */ |
2dc74dc1 | 748 | xfree (objfile); |
c906108c SS |
749 | } |
750 | ||
74b7792f AC |
751 | static void |
752 | do_free_objfile_cleanup (void *obj) | |
753 | { | |
754 | free_objfile (obj); | |
755 | } | |
756 | ||
757 | struct cleanup * | |
758 | make_cleanup_free_objfile (struct objfile *obj) | |
759 | { | |
760 | return make_cleanup (do_free_objfile_cleanup, obj); | |
761 | } | |
c906108c SS |
762 | |
763 | /* Free all the object files at once and clean up their users. */ | |
764 | ||
765 | void | |
fba45db2 | 766 | free_all_objfiles (void) |
c906108c SS |
767 | { |
768 | struct objfile *objfile, *temp; | |
0133421a JK |
769 | struct so_list *so; |
770 | ||
771 | /* Any objfile referencewould become stale. */ | |
772 | for (so = master_so_list (); so; so = so->next) | |
773 | gdb_assert (so->objfile == NULL); | |
c906108c SS |
774 | |
775 | ALL_OBJFILES_SAFE (objfile, temp) | |
c5aa993b JM |
776 | { |
777 | free_objfile (objfile); | |
778 | } | |
c1e56572 | 779 | clear_symtab_users (0); |
c906108c SS |
780 | } |
781 | \f | |
34eaf542 TT |
782 | /* A helper function for objfile_relocate1 that relocates a single |
783 | symbol. */ | |
784 | ||
785 | static void | |
786 | relocate_one_symbol (struct symbol *sym, struct objfile *objfile, | |
787 | struct section_offsets *delta) | |
788 | { | |
789 | fixup_symbol_section (sym, objfile); | |
790 | ||
791 | /* The RS6000 code from which this was taken skipped | |
792 | any symbols in STRUCT_DOMAIN or UNDEF_DOMAIN. | |
793 | But I'm leaving out that test, on the theory that | |
794 | they can't possibly pass the tests below. */ | |
795 | if ((SYMBOL_CLASS (sym) == LOC_LABEL | |
796 | || SYMBOL_CLASS (sym) == LOC_STATIC) | |
797 | && SYMBOL_SECTION (sym) >= 0) | |
798 | { | |
799 | SYMBOL_VALUE_ADDRESS (sym) += ANOFFSET (delta, SYMBOL_SECTION (sym)); | |
800 | } | |
801 | } | |
802 | ||
c906108c | 803 | /* Relocate OBJFILE to NEW_OFFSETS. There should be OBJFILE->NUM_SECTIONS |
b260e109 JK |
804 | entries in new_offsets. SEPARATE_DEBUG_OBJFILE is not touched here. |
805 | Return non-zero iff any change happened. */ | |
567995e1 | 806 | |
b260e109 | 807 | static int |
5cc80db3 | 808 | objfile_relocate1 (struct objfile *objfile, |
3189cb12 | 809 | const struct section_offsets *new_offsets) |
c906108c | 810 | { |
30510692 | 811 | struct obj_section *s; |
d4f3574e | 812 | struct section_offsets *delta = |
a39a16c4 MM |
813 | ((struct section_offsets *) |
814 | alloca (SIZEOF_N_SECTION_OFFSETS (objfile->num_sections))); | |
c906108c | 815 | |
5cc80db3 MS |
816 | int i; |
817 | int something_changed = 0; | |
818 | ||
819 | for (i = 0; i < objfile->num_sections; ++i) | |
820 | { | |
821 | delta->offsets[i] = | |
822 | ANOFFSET (new_offsets, i) - ANOFFSET (objfile->section_offsets, i); | |
823 | if (ANOFFSET (delta, i) != 0) | |
824 | something_changed = 1; | |
825 | } | |
826 | if (!something_changed) | |
827 | return 0; | |
c906108c SS |
828 | |
829 | /* OK, get all the symtabs. */ | |
830 | { | |
43f3e411 | 831 | struct compunit_symtab *cust; |
c906108c SS |
832 | struct symtab *s; |
833 | ||
43f3e411 | 834 | ALL_OBJFILE_FILETABS (objfile, cust, s) |
c5aa993b JM |
835 | { |
836 | struct linetable *l; | |
c5aa993b JM |
837 | int i; |
838 | ||
839 | /* First the line table. */ | |
8435453b | 840 | l = SYMTAB_LINETABLE (s); |
c5aa993b JM |
841 | if (l) |
842 | { | |
843 | for (i = 0; i < l->nitems; ++i) | |
43f3e411 DE |
844 | l->item[i].pc += ANOFFSET (delta, |
845 | COMPUNIT_BLOCK_LINE_SECTION | |
846 | (cust)); | |
c5aa993b | 847 | } |
43f3e411 | 848 | } |
c906108c | 849 | |
43f3e411 DE |
850 | ALL_OBJFILE_COMPUNITS (objfile, cust) |
851 | { | |
852 | const struct blockvector *bv = COMPUNIT_BLOCKVECTOR (cust); | |
853 | int block_line_section = COMPUNIT_BLOCK_LINE_SECTION (cust); | |
c906108c | 854 | |
b101f7a1 UW |
855 | if (BLOCKVECTOR_MAP (bv)) |
856 | addrmap_relocate (BLOCKVECTOR_MAP (bv), | |
43f3e411 | 857 | ANOFFSET (delta, block_line_section)); |
b101f7a1 | 858 | |
c5aa993b JM |
859 | for (i = 0; i < BLOCKVECTOR_NBLOCKS (bv); ++i) |
860 | { | |
861 | struct block *b; | |
e88c90f2 | 862 | struct symbol *sym; |
de4f826b | 863 | struct dict_iterator iter; |
c5aa993b JM |
864 | |
865 | b = BLOCKVECTOR_BLOCK (bv, i); | |
43f3e411 DE |
866 | BLOCK_START (b) += ANOFFSET (delta, block_line_section); |
867 | BLOCK_END (b) += ANOFFSET (delta, block_line_section); | |
c5aa993b | 868 | |
8157b174 TT |
869 | /* We only want to iterate over the local symbols, not any |
870 | symbols in included symtabs. */ | |
871 | ALL_DICT_SYMBOLS (BLOCK_DICT (b), iter, sym) | |
c5aa993b | 872 | { |
34eaf542 | 873 | relocate_one_symbol (sym, objfile, delta); |
c5aa993b JM |
874 | } |
875 | } | |
876 | } | |
c906108c SS |
877 | } |
878 | ||
34eaf542 TT |
879 | /* Relocate isolated symbols. */ |
880 | { | |
881 | struct symbol *iter; | |
882 | ||
883 | for (iter = objfile->template_symbols; iter; iter = iter->hash_next) | |
884 | relocate_one_symbol (iter, objfile, delta); | |
885 | } | |
886 | ||
9b14d7aa JK |
887 | if (objfile->psymtabs_addrmap) |
888 | addrmap_relocate (objfile->psymtabs_addrmap, | |
889 | ANOFFSET (delta, SECT_OFF_TEXT (objfile))); | |
890 | ||
ccefe4c4 TT |
891 | if (objfile->sf) |
892 | objfile->sf->qf->relocate (objfile, new_offsets, delta); | |
c906108c | 893 | |
f1f2b5f4 PA |
894 | { |
895 | int i; | |
5cc80db3 | 896 | |
f1f2b5f4 PA |
897 | for (i = 0; i < objfile->num_sections; ++i) |
898 | (objfile->section_offsets)->offsets[i] = ANOFFSET (new_offsets, i); | |
899 | } | |
900 | ||
901 | /* Rebuild section map next time we need it. */ | |
607ece04 | 902 | get_objfile_pspace_data (objfile->pspace)->section_map_dirty = 1; |
f1f2b5f4 | 903 | |
30510692 DJ |
904 | /* Update the table in exec_ops, used to read memory. */ |
905 | ALL_OBJFILE_OSECTIONS (objfile, s) | |
906 | { | |
65cf3563 | 907 | int idx = s - objfile->sections; |
30510692 DJ |
908 | |
909 | exec_set_section_address (bfd_get_filename (objfile->obfd), idx, | |
f1f6aadf | 910 | obj_section_addr (s)); |
30510692 | 911 | } |
b260e109 JK |
912 | |
913 | /* Data changed. */ | |
914 | return 1; | |
567995e1 JK |
915 | } |
916 | ||
917 | /* Relocate OBJFILE to NEW_OFFSETS. There should be OBJFILE->NUM_SECTIONS | |
918 | entries in new_offsets. Process also OBJFILE's SEPARATE_DEBUG_OBJFILEs. | |
919 | ||
920 | The number and ordering of sections does differ between the two objfiles. | |
921 | Only their names match. Also the file offsets will differ (objfile being | |
922 | possibly prelinked but separate_debug_objfile is probably not prelinked) but | |
923 | the in-memory absolute address as specified by NEW_OFFSETS must match both | |
924 | files. */ | |
925 | ||
926 | void | |
3189cb12 DE |
927 | objfile_relocate (struct objfile *objfile, |
928 | const struct section_offsets *new_offsets) | |
567995e1 JK |
929 | { |
930 | struct objfile *debug_objfile; | |
b260e109 | 931 | int changed = 0; |
567995e1 | 932 | |
b260e109 | 933 | changed |= objfile_relocate1 (objfile, new_offsets); |
567995e1 JK |
934 | |
935 | for (debug_objfile = objfile->separate_debug_objfile; | |
936 | debug_objfile; | |
937 | debug_objfile = objfile_separate_debug_iterate (objfile, debug_objfile)) | |
938 | { | |
939 | struct section_addr_info *objfile_addrs; | |
940 | struct section_offsets *new_debug_offsets; | |
567995e1 JK |
941 | struct cleanup *my_cleanups; |
942 | ||
943 | objfile_addrs = build_section_addr_info_from_objfile (objfile); | |
944 | my_cleanups = make_cleanup (xfree, objfile_addrs); | |
945 | ||
946 | /* Here OBJFILE_ADDRS contain the correct absolute addresses, the | |
947 | relative ones must be already created according to debug_objfile. */ | |
948 | ||
949 | addr_info_make_relative (objfile_addrs, debug_objfile->obfd); | |
950 | ||
951 | gdb_assert (debug_objfile->num_sections | |
d445b2f6 | 952 | == gdb_bfd_count_sections (debug_objfile->obfd)); |
4fc06681 MS |
953 | new_debug_offsets = |
954 | xmalloc (SIZEOF_N_SECTION_OFFSETS (debug_objfile->num_sections)); | |
567995e1 JK |
955 | make_cleanup (xfree, new_debug_offsets); |
956 | relative_addr_info_to_section_offsets (new_debug_offsets, | |
957 | debug_objfile->num_sections, | |
958 | objfile_addrs); | |
959 | ||
b260e109 | 960 | changed |= objfile_relocate1 (debug_objfile, new_debug_offsets); |
567995e1 JK |
961 | |
962 | do_cleanups (my_cleanups); | |
963 | } | |
30510692 | 964 | |
0df8b418 | 965 | /* Relocate breakpoints as necessary, after things are relocated. */ |
b260e109 JK |
966 | if (changed) |
967 | breakpoint_re_set (); | |
c906108c | 968 | } |
4141a416 JB |
969 | |
970 | /* Rebase (add to the offsets) OBJFILE by SLIDE. SEPARATE_DEBUG_OBJFILE is | |
971 | not touched here. | |
972 | Return non-zero iff any change happened. */ | |
973 | ||
974 | static int | |
975 | objfile_rebase1 (struct objfile *objfile, CORE_ADDR slide) | |
976 | { | |
977 | struct section_offsets *new_offsets = | |
978 | ((struct section_offsets *) | |
979 | alloca (SIZEOF_N_SECTION_OFFSETS (objfile->num_sections))); | |
980 | int i; | |
981 | ||
982 | for (i = 0; i < objfile->num_sections; ++i) | |
983 | new_offsets->offsets[i] = slide; | |
984 | ||
985 | return objfile_relocate1 (objfile, new_offsets); | |
986 | } | |
987 | ||
988 | /* Rebase (add to the offsets) OBJFILE by SLIDE. Process also OBJFILE's | |
989 | SEPARATE_DEBUG_OBJFILEs. */ | |
990 | ||
991 | void | |
992 | objfile_rebase (struct objfile *objfile, CORE_ADDR slide) | |
993 | { | |
994 | struct objfile *debug_objfile; | |
995 | int changed = 0; | |
996 | ||
997 | changed |= objfile_rebase1 (objfile, slide); | |
998 | ||
999 | for (debug_objfile = objfile->separate_debug_objfile; | |
1000 | debug_objfile; | |
1001 | debug_objfile = objfile_separate_debug_iterate (objfile, debug_objfile)) | |
1002 | changed |= objfile_rebase1 (debug_objfile, slide); | |
1003 | ||
1004 | /* Relocate breakpoints as necessary, after things are relocated. */ | |
1005 | if (changed) | |
1006 | breakpoint_re_set (); | |
1007 | } | |
c906108c | 1008 | \f |
55333a84 DE |
1009 | /* Return non-zero if OBJFILE has partial symbols. */ |
1010 | ||
1011 | int | |
1012 | objfile_has_partial_symbols (struct objfile *objfile) | |
1013 | { | |
b11896a5 TT |
1014 | if (!objfile->sf) |
1015 | return 0; | |
3e03848b JK |
1016 | |
1017 | /* If we have not read psymbols, but we have a function capable of reading | |
1018 | them, then that is an indication that they are in fact available. Without | |
1019 | this function the symbols may have been already read in but they also may | |
1020 | not be present in this objfile. */ | |
1021 | if ((objfile->flags & OBJF_PSYMTABS_READ) == 0 | |
1022 | && objfile->sf->sym_read_psymbols != NULL) | |
1023 | return 1; | |
1024 | ||
b11896a5 | 1025 | return objfile->sf->qf->has_symbols (objfile); |
55333a84 DE |
1026 | } |
1027 | ||
1028 | /* Return non-zero if OBJFILE has full symbols. */ | |
1029 | ||
1030 | int | |
1031 | objfile_has_full_symbols (struct objfile *objfile) | |
1032 | { | |
43f3e411 | 1033 | return objfile->compunit_symtabs != NULL; |
55333a84 DE |
1034 | } |
1035 | ||
e361b228 | 1036 | /* Return non-zero if OBJFILE has full or partial symbols, either directly |
15d123c9 | 1037 | or through a separate debug file. */ |
e361b228 TG |
1038 | |
1039 | int | |
1040 | objfile_has_symbols (struct objfile *objfile) | |
1041 | { | |
15d123c9 | 1042 | struct objfile *o; |
e361b228 | 1043 | |
15d123c9 TG |
1044 | for (o = objfile; o; o = objfile_separate_debug_iterate (objfile, o)) |
1045 | if (objfile_has_partial_symbols (o) || objfile_has_full_symbols (o)) | |
1046 | return 1; | |
e361b228 TG |
1047 | return 0; |
1048 | } | |
1049 | ||
1050 | ||
c906108c SS |
1051 | /* Many places in gdb want to test just to see if we have any partial |
1052 | symbols available. This function returns zero if none are currently | |
0df8b418 | 1053 | available, nonzero otherwise. */ |
c906108c SS |
1054 | |
1055 | int | |
fba45db2 | 1056 | have_partial_symbols (void) |
c906108c SS |
1057 | { |
1058 | struct objfile *ofp; | |
1059 | ||
1060 | ALL_OBJFILES (ofp) | |
c5aa993b | 1061 | { |
55333a84 DE |
1062 | if (objfile_has_partial_symbols (ofp)) |
1063 | return 1; | |
c5aa993b | 1064 | } |
c906108c SS |
1065 | return 0; |
1066 | } | |
1067 | ||
1068 | /* Many places in gdb want to test just to see if we have any full | |
1069 | symbols available. This function returns zero if none are currently | |
0df8b418 | 1070 | available, nonzero otherwise. */ |
c906108c SS |
1071 | |
1072 | int | |
fba45db2 | 1073 | have_full_symbols (void) |
c906108c SS |
1074 | { |
1075 | struct objfile *ofp; | |
1076 | ||
1077 | ALL_OBJFILES (ofp) | |
c5aa993b | 1078 | { |
55333a84 DE |
1079 | if (objfile_has_full_symbols (ofp)) |
1080 | return 1; | |
c5aa993b | 1081 | } |
c906108c SS |
1082 | return 0; |
1083 | } | |
1084 | ||
1085 | ||
1086 | /* This operations deletes all objfile entries that represent solibs that | |
1087 | weren't explicitly loaded by the user, via e.g., the add-symbol-file | |
0df8b418 MS |
1088 | command. */ |
1089 | ||
c906108c | 1090 | void |
fba45db2 | 1091 | objfile_purge_solibs (void) |
c906108c | 1092 | { |
c5aa993b JM |
1093 | struct objfile *objf; |
1094 | struct objfile *temp; | |
c906108c SS |
1095 | |
1096 | ALL_OBJFILES_SAFE (objf, temp) | |
1097 | { | |
1098 | /* We assume that the solib package has been purged already, or will | |
0df8b418 MS |
1099 | be soon. */ |
1100 | ||
2df3850c | 1101 | if (!(objf->flags & OBJF_USERLOADED) && (objf->flags & OBJF_SHARED)) |
c906108c SS |
1102 | free_objfile (objf); |
1103 | } | |
1104 | } | |
1105 | ||
1106 | ||
1107 | /* Many places in gdb want to test just to see if we have any minimal | |
1108 | symbols available. This function returns zero if none are currently | |
0df8b418 | 1109 | available, nonzero otherwise. */ |
c906108c SS |
1110 | |
1111 | int | |
fba45db2 | 1112 | have_minimal_symbols (void) |
c906108c SS |
1113 | { |
1114 | struct objfile *ofp; | |
1115 | ||
1116 | ALL_OBJFILES (ofp) | |
c5aa993b | 1117 | { |
34643a32 | 1118 | if (ofp->per_bfd->minimal_symbol_count > 0) |
c5aa993b JM |
1119 | { |
1120 | return 1; | |
1121 | } | |
1122 | } | |
c906108c SS |
1123 | return 0; |
1124 | } | |
1125 | ||
a845f5cb PP |
1126 | /* Qsort comparison function. */ |
1127 | ||
1128 | static int | |
1129 | qsort_cmp (const void *a, const void *b) | |
1130 | { | |
1131 | const struct obj_section *sect1 = *(const struct obj_section **) a; | |
1132 | const struct obj_section *sect2 = *(const struct obj_section **) b; | |
1133 | const CORE_ADDR sect1_addr = obj_section_addr (sect1); | |
1134 | const CORE_ADDR sect2_addr = obj_section_addr (sect2); | |
1135 | ||
1136 | if (sect1_addr < sect2_addr) | |
6fbf07cd | 1137 | return -1; |
a845f5cb | 1138 | else if (sect1_addr > sect2_addr) |
6fbf07cd PP |
1139 | return 1; |
1140 | else | |
5cc80db3 MS |
1141 | { |
1142 | /* Sections are at the same address. This could happen if | |
1143 | A) we have an objfile and a separate debuginfo. | |
1144 | B) we are confused, and have added sections without proper relocation, | |
0df8b418 | 1145 | or something like that. */ |
5cc80db3 MS |
1146 | |
1147 | const struct objfile *const objfile1 = sect1->objfile; | |
1148 | const struct objfile *const objfile2 = sect2->objfile; | |
1149 | ||
1150 | if (objfile1->separate_debug_objfile == objfile2 | |
1151 | || objfile2->separate_debug_objfile == objfile1) | |
1152 | { | |
1153 | /* Case A. The ordering doesn't matter: separate debuginfo files | |
1154 | will be filtered out later. */ | |
1155 | ||
1156 | return 0; | |
1157 | } | |
1158 | ||
1159 | /* Case B. Maintain stable sort order, so bugs in GDB are easier to | |
1160 | triage. This section could be slow (since we iterate over all | |
1161 | objfiles in each call to qsort_cmp), but this shouldn't happen | |
1162 | very often (GDB is already in a confused state; one hopes this | |
1163 | doesn't happen at all). If you discover that significant time is | |
1164 | spent in the loops below, do 'set complaints 100' and examine the | |
1165 | resulting complaints. */ | |
1166 | ||
1167 | if (objfile1 == objfile2) | |
1168 | { | |
1169 | /* Both sections came from the same objfile. We are really confused. | |
1170 | Sort on sequence order of sections within the objfile. */ | |
1171 | ||
1172 | const struct obj_section *osect; | |
1173 | ||
1174 | ALL_OBJFILE_OSECTIONS (objfile1, osect) | |
1175 | if (osect == sect1) | |
1176 | return -1; | |
1177 | else if (osect == sect2) | |
1178 | return 1; | |
1179 | ||
1180 | /* We should have found one of the sections before getting here. */ | |
f3574227 | 1181 | gdb_assert_not_reached ("section not found"); |
5cc80db3 MS |
1182 | } |
1183 | else | |
1184 | { | |
1185 | /* Sort on sequence number of the objfile in the chain. */ | |
1186 | ||
1187 | const struct objfile *objfile; | |
1188 | ||
1189 | ALL_OBJFILES (objfile) | |
1190 | if (objfile == objfile1) | |
1191 | return -1; | |
1192 | else if (objfile == objfile2) | |
1193 | return 1; | |
1194 | ||
1195 | /* We should have found one of the objfiles before getting here. */ | |
f3574227 | 1196 | gdb_assert_not_reached ("objfile not found"); |
5cc80db3 MS |
1197 | } |
1198 | } | |
6fbf07cd PP |
1199 | |
1200 | /* Unreachable. */ | |
f3574227 | 1201 | gdb_assert_not_reached ("unexpected code path"); |
a845f5cb PP |
1202 | return 0; |
1203 | } | |
1204 | ||
3aad21cf PP |
1205 | /* Select "better" obj_section to keep. We prefer the one that came from |
1206 | the real object, rather than the one from separate debuginfo. | |
1207 | Most of the time the two sections are exactly identical, but with | |
1208 | prelinking the .rel.dyn section in the real object may have different | |
1209 | size. */ | |
1210 | ||
1211 | static struct obj_section * | |
1212 | preferred_obj_section (struct obj_section *a, struct obj_section *b) | |
1213 | { | |
1214 | gdb_assert (obj_section_addr (a) == obj_section_addr (b)); | |
1215 | gdb_assert ((a->objfile->separate_debug_objfile == b->objfile) | |
1216 | || (b->objfile->separate_debug_objfile == a->objfile)); | |
1217 | gdb_assert ((a->objfile->separate_debug_objfile_backlink == b->objfile) | |
1218 | || (b->objfile->separate_debug_objfile_backlink == a->objfile)); | |
1219 | ||
1220 | if (a->objfile->separate_debug_objfile != NULL) | |
1221 | return a; | |
1222 | return b; | |
1223 | } | |
1224 | ||
6fbf07cd PP |
1225 | /* Return 1 if SECTION should be inserted into the section map. |
1226 | We want to insert only non-overlay and non-TLS section. */ | |
1227 | ||
1228 | static int | |
1229 | insert_section_p (const struct bfd *abfd, | |
1230 | const struct bfd_section *section) | |
1231 | { | |
1232 | const bfd_vma lma = bfd_section_lma (abfd, section); | |
1233 | ||
50f8ea94 | 1234 | if (overlay_debugging && lma != 0 && lma != bfd_section_vma (abfd, section) |
6fbf07cd PP |
1235 | && (bfd_get_file_flags (abfd) & BFD_IN_MEMORY) == 0) |
1236 | /* This is an overlay section. IN_MEMORY check is needed to avoid | |
1237 | discarding sections from the "system supplied DSO" (aka vdso) | |
1238 | on some Linux systems (e.g. Fedora 11). */ | |
1239 | return 0; | |
1240 | if ((bfd_get_section_flags (abfd, section) & SEC_THREAD_LOCAL) != 0) | |
1241 | /* This is a TLS section. */ | |
1242 | return 0; | |
1243 | ||
1244 | return 1; | |
1245 | } | |
1246 | ||
1247 | /* Filter out overlapping sections where one section came from the real | |
1248 | objfile, and the other from a separate debuginfo file. | |
1249 | Return the size of table after redundant sections have been eliminated. */ | |
1250 | ||
1251 | static int | |
1252 | filter_debuginfo_sections (struct obj_section **map, int map_size) | |
1253 | { | |
1254 | int i, j; | |
1255 | ||
1256 | for (i = 0, j = 0; i < map_size - 1; i++) | |
1257 | { | |
1258 | struct obj_section *const sect1 = map[i]; | |
1259 | struct obj_section *const sect2 = map[i + 1]; | |
1260 | const struct objfile *const objfile1 = sect1->objfile; | |
1261 | const struct objfile *const objfile2 = sect2->objfile; | |
1262 | const CORE_ADDR sect1_addr = obj_section_addr (sect1); | |
1263 | const CORE_ADDR sect2_addr = obj_section_addr (sect2); | |
1264 | ||
1265 | if (sect1_addr == sect2_addr | |
1266 | && (objfile1->separate_debug_objfile == objfile2 | |
1267 | || objfile2->separate_debug_objfile == objfile1)) | |
1268 | { | |
1269 | map[j++] = preferred_obj_section (sect1, sect2); | |
1270 | ++i; | |
1271 | } | |
1272 | else | |
1273 | map[j++] = sect1; | |
1274 | } | |
1275 | ||
1276 | if (i < map_size) | |
1277 | { | |
1278 | gdb_assert (i == map_size - 1); | |
1279 | map[j++] = map[i]; | |
1280 | } | |
1281 | ||
1282 | /* The map should not have shrunk to less than half the original size. */ | |
1283 | gdb_assert (map_size / 2 <= j); | |
1284 | ||
1285 | return j; | |
1286 | } | |
1287 | ||
1288 | /* Filter out overlapping sections, issuing a warning if any are found. | |
1289 | Overlapping sections could really be overlay sections which we didn't | |
1290 | classify as such in insert_section_p, or we could be dealing with a | |
1291 | corrupt binary. */ | |
1292 | ||
1293 | static int | |
1294 | filter_overlapping_sections (struct obj_section **map, int map_size) | |
1295 | { | |
1296 | int i, j; | |
1297 | ||
1298 | for (i = 0, j = 0; i < map_size - 1; ) | |
1299 | { | |
1300 | int k; | |
1301 | ||
1302 | map[j++] = map[i]; | |
1303 | for (k = i + 1; k < map_size; k++) | |
1304 | { | |
1305 | struct obj_section *const sect1 = map[i]; | |
1306 | struct obj_section *const sect2 = map[k]; | |
1307 | const CORE_ADDR sect1_addr = obj_section_addr (sect1); | |
1308 | const CORE_ADDR sect2_addr = obj_section_addr (sect2); | |
1309 | const CORE_ADDR sect1_endaddr = obj_section_endaddr (sect1); | |
1310 | ||
1311 | gdb_assert (sect1_addr <= sect2_addr); | |
1312 | ||
1313 | if (sect1_endaddr <= sect2_addr) | |
1314 | break; | |
1315 | else | |
1316 | { | |
1317 | /* We have an overlap. Report it. */ | |
1318 | ||
1319 | struct objfile *const objf1 = sect1->objfile; | |
1320 | struct objfile *const objf2 = sect2->objfile; | |
1321 | ||
6fbf07cd PP |
1322 | const struct bfd_section *const bfds1 = sect1->the_bfd_section; |
1323 | const struct bfd_section *const bfds2 = sect2->the_bfd_section; | |
1324 | ||
1325 | const CORE_ADDR sect2_endaddr = obj_section_endaddr (sect2); | |
1326 | ||
1327 | struct gdbarch *const gdbarch = get_objfile_arch (objf1); | |
1328 | ||
1329 | complaint (&symfile_complaints, | |
1330 | _("unexpected overlap between:\n" | |
1331 | " (A) section `%s' from `%s' [%s, %s)\n" | |
1332 | " (B) section `%s' from `%s' [%s, %s).\n" | |
1333 | "Will ignore section B"), | |
4262abfb | 1334 | bfd_section_name (abfd1, bfds1), objfile_name (objf1), |
6fbf07cd PP |
1335 | paddress (gdbarch, sect1_addr), |
1336 | paddress (gdbarch, sect1_endaddr), | |
4262abfb | 1337 | bfd_section_name (abfd2, bfds2), objfile_name (objf2), |
6fbf07cd PP |
1338 | paddress (gdbarch, sect2_addr), |
1339 | paddress (gdbarch, sect2_endaddr)); | |
1340 | } | |
1341 | } | |
1342 | i = k; | |
1343 | } | |
1344 | ||
1345 | if (i < map_size) | |
1346 | { | |
1347 | gdb_assert (i == map_size - 1); | |
1348 | map[j++] = map[i]; | |
1349 | } | |
1350 | ||
1351 | return j; | |
1352 | } | |
1353 | ||
1354 | ||
1355 | /* Update PMAP, PMAP_SIZE with sections from all objfiles, excluding any | |
1356 | TLS, overlay and overlapping sections. */ | |
a845f5cb PP |
1357 | |
1358 | static void | |
6c95b8df PA |
1359 | update_section_map (struct program_space *pspace, |
1360 | struct obj_section ***pmap, int *pmap_size) | |
a845f5cb | 1361 | { |
607ece04 | 1362 | struct objfile_pspace_info *pspace_info; |
6fbf07cd | 1363 | int alloc_size, map_size, i; |
a845f5cb PP |
1364 | struct obj_section *s, **map; |
1365 | struct objfile *objfile; | |
1366 | ||
607ece04 GB |
1367 | pspace_info = get_objfile_pspace_data (pspace); |
1368 | gdb_assert (pspace_info->section_map_dirty != 0 | |
1369 | || pspace_info->new_objfiles_available != 0); | |
a845f5cb PP |
1370 | |
1371 | map = *pmap; | |
1372 | xfree (map); | |
1373 | ||
6fbf07cd | 1374 | alloc_size = 0; |
6c95b8df PA |
1375 | ALL_PSPACE_OBJFILES (pspace, objfile) |
1376 | ALL_OBJFILE_OSECTIONS (objfile, s) | |
1377 | if (insert_section_p (objfile->obfd, s->the_bfd_section)) | |
1378 | alloc_size += 1; | |
a845f5cb | 1379 | |
65a97ab3 PP |
1380 | /* This happens on detach/attach (e.g. in gdb.base/attach.exp). */ |
1381 | if (alloc_size == 0) | |
1382 | { | |
1383 | *pmap = NULL; | |
1384 | *pmap_size = 0; | |
1385 | return; | |
1386 | } | |
1387 | ||
8d749320 | 1388 | map = XNEWVEC (struct obj_section *, alloc_size); |
a845f5cb | 1389 | |
3aad21cf | 1390 | i = 0; |
6c95b8df PA |
1391 | ALL_PSPACE_OBJFILES (pspace, objfile) |
1392 | ALL_OBJFILE_OSECTIONS (objfile, s) | |
1393 | if (insert_section_p (objfile->obfd, s->the_bfd_section)) | |
1394 | map[i++] = s; | |
a845f5cb | 1395 | |
6fbf07cd PP |
1396 | qsort (map, alloc_size, sizeof (*map), qsort_cmp); |
1397 | map_size = filter_debuginfo_sections(map, alloc_size); | |
1398 | map_size = filter_overlapping_sections(map, map_size); | |
a845f5cb | 1399 | |
6fbf07cd PP |
1400 | if (map_size < alloc_size) |
1401 | /* Some sections were eliminated. Trim excess space. */ | |
1402 | map = xrealloc (map, map_size * sizeof (*map)); | |
3aad21cf | 1403 | else |
6fbf07cd | 1404 | gdb_assert (alloc_size == map_size); |
3aad21cf | 1405 | |
a845f5cb PP |
1406 | *pmap = map; |
1407 | *pmap_size = map_size; | |
1408 | } | |
1409 | ||
0df8b418 | 1410 | /* Bsearch comparison function. */ |
a845f5cb PP |
1411 | |
1412 | static int | |
1413 | bsearch_cmp (const void *key, const void *elt) | |
1414 | { | |
1415 | const CORE_ADDR pc = *(CORE_ADDR *) key; | |
1416 | const struct obj_section *section = *(const struct obj_section **) elt; | |
1417 | ||
1418 | if (pc < obj_section_addr (section)) | |
1419 | return -1; | |
1420 | if (pc < obj_section_endaddr (section)) | |
1421 | return 0; | |
1422 | return 1; | |
1423 | } | |
1424 | ||
714835d5 | 1425 | /* Returns a section whose range includes PC or NULL if none found. */ |
c906108c SS |
1426 | |
1427 | struct obj_section * | |
714835d5 | 1428 | find_pc_section (CORE_ADDR pc) |
c906108c | 1429 | { |
6c95b8df | 1430 | struct objfile_pspace_info *pspace_info; |
a845f5cb | 1431 | struct obj_section *s, **sp; |
c5aa993b | 1432 | |
714835d5 UW |
1433 | /* Check for mapped overlay section first. */ |
1434 | s = find_pc_mapped_section (pc); | |
1435 | if (s) | |
1436 | return s; | |
c906108c | 1437 | |
6c95b8df | 1438 | pspace_info = get_objfile_pspace_data (current_program_space); |
607ece04 GB |
1439 | if (pspace_info->section_map_dirty |
1440 | || (pspace_info->new_objfiles_available | |
1441 | && !pspace_info->inhibit_updates)) | |
a845f5cb | 1442 | { |
6c95b8df PA |
1443 | update_section_map (current_program_space, |
1444 | &pspace_info->sections, | |
1445 | &pspace_info->num_sections); | |
c906108c | 1446 | |
6c95b8df PA |
1447 | /* Don't need updates to section map until objfiles are added, |
1448 | removed or relocated. */ | |
607ece04 GB |
1449 | pspace_info->new_objfiles_available = 0; |
1450 | pspace_info->section_map_dirty = 0; | |
a845f5cb PP |
1451 | } |
1452 | ||
65a97ab3 PP |
1453 | /* The C standard (ISO/IEC 9899:TC2) requires the BASE argument to |
1454 | bsearch be non-NULL. */ | |
1455 | if (pspace_info->sections == NULL) | |
1456 | { | |
1457 | gdb_assert (pspace_info->num_sections == 0); | |
1458 | return NULL; | |
1459 | } | |
1460 | ||
6c95b8df PA |
1461 | sp = (struct obj_section **) bsearch (&pc, |
1462 | pspace_info->sections, | |
1463 | pspace_info->num_sections, | |
1464 | sizeof (*pspace_info->sections), | |
1465 | bsearch_cmp); | |
a845f5cb PP |
1466 | if (sp != NULL) |
1467 | return *sp; | |
714835d5 | 1468 | return NULL; |
c906108c | 1469 | } |
c5aa993b | 1470 | |
c906108c | 1471 | |
3e5d3a5a | 1472 | /* Return non-zero if PC is in a section called NAME. */ |
c906108c SS |
1473 | |
1474 | int | |
3e5d3a5a | 1475 | pc_in_section (CORE_ADDR pc, char *name) |
c906108c SS |
1476 | { |
1477 | struct obj_section *s; | |
1478 | int retval = 0; | |
c5aa993b JM |
1479 | |
1480 | s = find_pc_section (pc); | |
1481 | ||
c906108c SS |
1482 | retval = (s != NULL |
1483 | && s->the_bfd_section->name != NULL | |
3e5d3a5a | 1484 | && strcmp (s->the_bfd_section->name, name) == 0); |
c5aa993b | 1485 | return (retval); |
c906108c | 1486 | } |
0d0e1a63 MK |
1487 | \f |
1488 | ||
607ece04 | 1489 | /* Set section_map_dirty so section map will be rebuilt next time it |
bb272892 | 1490 | is used. Called by reread_symbols. */ |
a845f5cb PP |
1491 | |
1492 | void | |
bb272892 | 1493 | objfiles_changed (void) |
a845f5cb | 1494 | { |
6c95b8df | 1495 | /* Rebuild section map next time we need it. */ |
607ece04 GB |
1496 | get_objfile_pspace_data (current_program_space)->section_map_dirty = 1; |
1497 | } | |
1498 | ||
1499 | /* See comments in objfiles.h. */ | |
1500 | ||
1501 | void | |
1502 | inhibit_section_map_updates (struct program_space *pspace) | |
1503 | { | |
1504 | get_objfile_pspace_data (pspace)->inhibit_updates = 1; | |
1505 | } | |
1506 | ||
1507 | /* See comments in objfiles.h. */ | |
1508 | ||
1509 | void | |
1510 | resume_section_map_updates (struct program_space *pspace) | |
1511 | { | |
1512 | get_objfile_pspace_data (pspace)->inhibit_updates = 0; | |
1513 | } | |
1514 | ||
1515 | /* See comments in objfiles.h. */ | |
1516 | ||
1517 | void | |
1518 | resume_section_map_updates_cleanup (void *arg) | |
1519 | { | |
1520 | resume_section_map_updates (arg); | |
a845f5cb | 1521 | } |
e3c69974 | 1522 | |
63644780 NB |
1523 | /* Return 1 if ADDR maps into one of the sections of OBJFILE and 0 |
1524 | otherwise. */ | |
1525 | ||
1526 | int | |
1527 | is_addr_in_objfile (CORE_ADDR addr, const struct objfile *objfile) | |
1528 | { | |
1529 | struct obj_section *osect; | |
1530 | ||
1531 | if (objfile == NULL) | |
1532 | return 0; | |
1533 | ||
1534 | ALL_OBJFILE_OSECTIONS (objfile, osect) | |
1535 | { | |
1536 | if (section_is_overlay (osect) && !section_is_mapped (osect)) | |
1537 | continue; | |
1538 | ||
1539 | if (obj_section_addr (osect) <= addr | |
1540 | && addr < obj_section_endaddr (osect)) | |
1541 | return 1; | |
1542 | } | |
1543 | return 0; | |
1544 | } | |
1545 | ||
08351840 | 1546 | int |
d03de421 PA |
1547 | shared_objfile_contains_address_p (struct program_space *pspace, |
1548 | CORE_ADDR address) | |
08351840 PA |
1549 | { |
1550 | struct objfile *objfile; | |
1551 | ||
1552 | ALL_PSPACE_OBJFILES (pspace, objfile) | |
1553 | { | |
d03de421 | 1554 | if ((objfile->flags & OBJF_SHARED) != 0 |
08351840 PA |
1555 | && is_addr_in_objfile (address, objfile)) |
1556 | return 1; | |
1557 | } | |
1558 | ||
1559 | return 0; | |
1560 | } | |
1561 | ||
19630284 JB |
1562 | /* The default implementation for the "iterate_over_objfiles_in_search_order" |
1563 | gdbarch method. It is equivalent to use the ALL_OBJFILES macro, | |
1564 | searching the objfiles in the order they are stored internally, | |
1565 | ignoring CURRENT_OBJFILE. | |
1566 | ||
1567 | On most platorms, it should be close enough to doing the best | |
1568 | we can without some knowledge specific to the architecture. */ | |
1569 | ||
1570 | void | |
1571 | default_iterate_over_objfiles_in_search_order | |
1572 | (struct gdbarch *gdbarch, | |
1573 | iterate_over_objfiles_in_search_order_cb_ftype *cb, | |
1574 | void *cb_data, struct objfile *current_objfile) | |
1575 | { | |
1576 | int stop = 0; | |
1577 | struct objfile *objfile; | |
1578 | ||
1579 | ALL_OBJFILES (objfile) | |
1580 | { | |
1581 | stop = cb (objfile, cb_data); | |
1582 | if (stop) | |
1583 | return; | |
1584 | } | |
1585 | } | |
1586 | ||
e02c96a7 | 1587 | /* See objfiles.h. */ |
4262abfb JK |
1588 | |
1589 | const char * | |
1590 | objfile_name (const struct objfile *objfile) | |
1591 | { | |
24ba069a JK |
1592 | if (objfile->obfd != NULL) |
1593 | return bfd_get_filename (objfile->obfd); | |
1594 | ||
4262abfb JK |
1595 | return objfile->original_name; |
1596 | } | |
1597 | ||
cc485e62 DE |
1598 | /* See objfiles.h. */ |
1599 | ||
e02c96a7 DE |
1600 | const char * |
1601 | objfile_filename (const struct objfile *objfile) | |
1602 | { | |
1603 | if (objfile->obfd != NULL) | |
1604 | return bfd_get_filename (objfile->obfd); | |
1605 | ||
1606 | return NULL; | |
1607 | } | |
1608 | ||
1609 | /* See objfiles.h. */ | |
1610 | ||
cc485e62 DE |
1611 | const char * |
1612 | objfile_debug_name (const struct objfile *objfile) | |
1613 | { | |
1614 | return lbasename (objfile->original_name); | |
1615 | } | |
1616 | ||
6c95b8df PA |
1617 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
1618 | extern initialize_file_ftype _initialize_objfiles; | |
1619 | ||
1620 | void | |
1621 | _initialize_objfiles (void) | |
1622 | { | |
1623 | objfiles_pspace_data | |
8e260fc0 TT |
1624 | = register_program_space_data_with_cleanup (NULL, |
1625 | objfiles_pspace_data_cleanup); | |
706e3705 TT |
1626 | |
1627 | objfiles_bfd_data = register_bfd_data_with_cleanup (NULL, | |
1628 | objfile_bfd_data_free); | |
6c95b8df | 1629 | } |