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 | 138 | { |
224c3ddb SM |
139 | storage |
140 | = ((struct objfile_per_bfd_storage *) | |
141 | bfd_zalloc (abfd, sizeof (struct objfile_per_bfd_storage))); | |
706e3705 TT |
142 | set_bfd_data (abfd, objfiles_bfd_data, storage); |
143 | } | |
144 | else | |
145 | storage = OBSTACK_ZALLOC (&objfile->objfile_obstack, | |
146 | struct objfile_per_bfd_storage); | |
147 | ||
1da77581 TT |
148 | /* Look up the gdbarch associated with the BFD. */ |
149 | if (abfd != NULL) | |
150 | storage->gdbarch = gdbarch_from_bfd (abfd); | |
151 | ||
706e3705 TT |
152 | obstack_init (&storage->storage_obstack); |
153 | storage->filename_cache = bcache_xmalloc (NULL, NULL); | |
6532ff36 | 154 | storage->macro_cache = bcache_xmalloc (NULL, NULL); |
3d548a53 | 155 | storage->language_of_main = language_unknown; |
706e3705 TT |
156 | } |
157 | ||
158 | return storage; | |
159 | } | |
160 | ||
161 | /* Free STORAGE. */ | |
162 | ||
163 | static void | |
164 | free_objfile_per_bfd_storage (struct objfile_per_bfd_storage *storage) | |
165 | { | |
166 | bcache_xfree (storage->filename_cache); | |
6532ff36 | 167 | bcache_xfree (storage->macro_cache); |
84a1243b TT |
168 | if (storage->demangled_names_hash) |
169 | htab_delete (storage->demangled_names_hash); | |
706e3705 TT |
170 | obstack_free (&storage->storage_obstack, 0); |
171 | } | |
172 | ||
173 | /* A wrapper for free_objfile_per_bfd_storage that can be passed as a | |
174 | cleanup function to the BFD registry. */ | |
175 | ||
176 | static void | |
177 | objfile_bfd_data_free (struct bfd *unused, void *d) | |
178 | { | |
179 | free_objfile_per_bfd_storage (d); | |
180 | } | |
181 | ||
182 | /* See objfiles.h. */ | |
183 | ||
184 | void | |
185 | set_objfile_per_bfd (struct objfile *objfile) | |
186 | { | |
187 | objfile->per_bfd = get_objfile_bfd_data (objfile, objfile->obfd); | |
188 | } | |
189 | ||
3d548a53 TT |
190 | /* Set the objfile's per-BFD notion of the "main" name and |
191 | language. */ | |
192 | ||
193 | void | |
194 | set_objfile_main_name (struct objfile *objfile, | |
195 | const char *name, enum language lang) | |
196 | { | |
197 | if (objfile->per_bfd->name_of_main == NULL | |
198 | || strcmp (objfile->per_bfd->name_of_main, name) != 0) | |
199 | objfile->per_bfd->name_of_main | |
224c3ddb SM |
200 | = (const char *) obstack_copy0 (&objfile->per_bfd->storage_obstack, name, |
201 | strlen (name)); | |
3d548a53 TT |
202 | objfile->per_bfd->language_of_main = lang; |
203 | } | |
204 | ||
63e43d3a PMR |
205 | /* Helper structure to map blocks to static link properties in hash tables. */ |
206 | ||
207 | struct static_link_htab_entry | |
208 | { | |
209 | const struct block *block; | |
210 | const struct dynamic_prop *static_link; | |
211 | }; | |
212 | ||
213 | /* Return a hash code for struct static_link_htab_entry *P. */ | |
214 | ||
215 | static hashval_t | |
216 | static_link_htab_entry_hash (const void *p) | |
217 | { | |
218 | const struct static_link_htab_entry *e | |
219 | = (const struct static_link_htab_entry *) p; | |
220 | ||
221 | return htab_hash_pointer (e->block); | |
222 | } | |
223 | ||
224 | /* Return whether P1 an P2 (pointers to struct static_link_htab_entry) are | |
225 | mappings for the same block. */ | |
226 | ||
227 | static int | |
228 | static_link_htab_entry_eq (const void *p1, const void *p2) | |
229 | { | |
230 | const struct static_link_htab_entry *e1 | |
231 | = (const struct static_link_htab_entry *) p1; | |
232 | const struct static_link_htab_entry *e2 | |
233 | = (const struct static_link_htab_entry *) p2; | |
234 | ||
235 | return e1->block == e2->block; | |
236 | } | |
237 | ||
238 | /* Register STATIC_LINK as the static link for BLOCK, which is part of OBJFILE. | |
239 | Must not be called more than once for each BLOCK. */ | |
240 | ||
241 | void | |
242 | objfile_register_static_link (struct objfile *objfile, | |
243 | const struct block *block, | |
244 | const struct dynamic_prop *static_link) | |
245 | { | |
246 | void **slot; | |
247 | struct static_link_htab_entry lookup_entry; | |
248 | struct static_link_htab_entry *entry; | |
249 | ||
250 | if (objfile->static_links == NULL) | |
251 | objfile->static_links = htab_create_alloc | |
252 | (1, &static_link_htab_entry_hash, static_link_htab_entry_eq, NULL, | |
253 | xcalloc, xfree); | |
254 | ||
255 | /* Create a slot for the mapping, make sure it's the first mapping for this | |
256 | block and then create the mapping itself. */ | |
257 | lookup_entry.block = block; | |
258 | slot = htab_find_slot (objfile->static_links, &lookup_entry, INSERT); | |
259 | gdb_assert (*slot == NULL); | |
260 | ||
261 | entry = (struct static_link_htab_entry *) obstack_alloc | |
262 | (&objfile->objfile_obstack, sizeof (*entry)); | |
263 | entry->block = block; | |
264 | entry->static_link = static_link; | |
265 | *slot = (void *) entry; | |
266 | } | |
267 | ||
268 | /* Look for a static link for BLOCK, which is part of OBJFILE. Return NULL if | |
269 | none was found. */ | |
270 | ||
271 | const struct dynamic_prop * | |
272 | objfile_lookup_static_link (struct objfile *objfile, | |
273 | const struct block *block) | |
274 | { | |
275 | struct static_link_htab_entry *entry; | |
276 | struct static_link_htab_entry lookup_entry; | |
277 | ||
278 | if (objfile->static_links == NULL) | |
279 | return NULL; | |
280 | lookup_entry.block = block; | |
281 | entry | |
282 | = (struct static_link_htab_entry *) htab_find (objfile->static_links, | |
283 | &lookup_entry); | |
284 | if (entry == NULL) | |
285 | return NULL; | |
286 | ||
287 | gdb_assert (entry->block == block); | |
288 | return entry->static_link; | |
289 | } | |
290 | ||
706e3705 TT |
291 | \f |
292 | ||
96baa820 JM |
293 | /* Called via bfd_map_over_sections to build up the section table that |
294 | the objfile references. The objfile contains pointers to the start | |
295 | of the table (objfile->sections) and to the first location after | |
0df8b418 | 296 | the end of the table (objfile->sections_end). */ |
96baa820 | 297 | |
65cf3563 TT |
298 | static void |
299 | add_to_objfile_sections_full (struct bfd *abfd, struct bfd_section *asect, | |
300 | struct objfile *objfile, int force) | |
301 | { | |
302 | struct obj_section *section; | |
303 | ||
304 | if (!force) | |
305 | { | |
306 | flagword aflag; | |
307 | ||
308 | aflag = bfd_get_section_flags (abfd, asect); | |
309 | if (!(aflag & SEC_ALLOC)) | |
310 | return; | |
311 | } | |
312 | ||
313 | section = &objfile->sections[gdb_bfd_section_index (abfd, asect)]; | |
314 | section->objfile = objfile; | |
315 | section->the_bfd_section = asect; | |
316 | section->ovly_mapped = 0; | |
317 | } | |
318 | ||
c906108c | 319 | static void |
7be0c536 | 320 | add_to_objfile_sections (struct bfd *abfd, struct bfd_section *asect, |
d82ea6a8 | 321 | void *objfilep) |
c906108c | 322 | { |
65cf3563 | 323 | add_to_objfile_sections_full (abfd, asect, objfilep, 0); |
c906108c SS |
324 | } |
325 | ||
326 | /* Builds a section table for OBJFILE. | |
96baa820 | 327 | |
65cf3563 TT |
328 | Note that the OFFSET and OVLY_MAPPED in each table entry are |
329 | initialized to zero. */ | |
c906108c | 330 | |
d82ea6a8 | 331 | void |
fba45db2 | 332 | build_objfile_section_table (struct objfile *objfile) |
c906108c | 333 | { |
65cf3563 TT |
334 | int count = gdb_bfd_count_sections (objfile->obfd); |
335 | ||
336 | objfile->sections = OBSTACK_CALLOC (&objfile->objfile_obstack, | |
337 | count, | |
338 | struct obj_section); | |
339 | objfile->sections_end = (objfile->sections + count); | |
f1f6aadf PA |
340 | bfd_map_over_sections (objfile->obfd, |
341 | add_to_objfile_sections, (void *) objfile); | |
65cf3563 TT |
342 | |
343 | /* See gdb_bfd_section_index. */ | |
344 | add_to_objfile_sections_full (objfile->obfd, bfd_com_section_ptr, objfile, 1); | |
345 | add_to_objfile_sections_full (objfile->obfd, bfd_und_section_ptr, objfile, 1); | |
346 | add_to_objfile_sections_full (objfile->obfd, bfd_abs_section_ptr, objfile, 1); | |
347 | add_to_objfile_sections_full (objfile->obfd, bfd_ind_section_ptr, objfile, 1); | |
c906108c SS |
348 | } |
349 | ||
2df3850c JM |
350 | /* Given a pointer to an initialized bfd (ABFD) and some flag bits |
351 | allocate a new objfile struct, fill it in as best we can, link it | |
352 | into the list of all known objfiles, and return a pointer to the | |
353 | new objfile struct. | |
c906108c | 354 | |
24ba069a JK |
355 | NAME should contain original non-canonicalized filename or other |
356 | identifier as entered by user. If there is no better source use | |
357 | bfd_get_filename (ABFD). NAME may be NULL only if ABFD is NULL. | |
358 | NAME content is copied into returned objfile. | |
359 | ||
2df3850c | 360 | The FLAGS word contains various bits (OBJF_*) that can be taken as |
78a4a9b9 | 361 | requests for specific operations. Other bits like OBJF_SHARED are |
0df8b418 | 362 | simply copied through to the new objfile flags member. */ |
c906108c | 363 | |
eb9a305d DC |
364 | /* NOTE: carlton/2003-02-04: This function is called with args NULL, 0 |
365 | by jv-lang.c, to create an artificial objfile used to hold | |
366 | information about dynamically-loaded Java classes. Unfortunately, | |
367 | that branch of this function doesn't get tested very frequently, so | |
368 | it's prone to breakage. (E.g. at one time the name was set to NULL | |
369 | in that situation, which broke a loop over all names in the dynamic | |
370 | library loader.) If you change this function, please try to leave | |
371 | things in a consistent state even if abfd is NULL. */ | |
372 | ||
c906108c | 373 | struct objfile * |
24ba069a | 374 | allocate_objfile (bfd *abfd, const char *name, int flags) |
c906108c | 375 | { |
2f6e5d7e | 376 | struct objfile *objfile; |
04affae3 | 377 | char *expanded_name; |
c906108c | 378 | |
8d749320 | 379 | objfile = XCNEW (struct objfile); |
710e1a31 | 380 | objfile->psymbol_cache = psymbol_bcache_init (); |
2f6e5d7e TG |
381 | /* We could use obstack_specify_allocation here instead, but |
382 | gdb_obstack.h specifies the alloc/dealloc functions. */ | |
383 | obstack_init (&objfile->objfile_obstack); | |
c906108c | 384 | |
0d0e1a63 MK |
385 | objfile_alloc_data (objfile); |
386 | ||
24ba069a JK |
387 | if (name == NULL) |
388 | { | |
389 | gdb_assert (abfd == NULL); | |
40135bb1 | 390 | gdb_assert ((flags & OBJF_NOT_FILENAME) != 0); |
04affae3 | 391 | expanded_name = xstrdup ("<<anonymous objfile>>"); |
24ba069a | 392 | } |
5fbae7d1 GB |
393 | else if ((flags & OBJF_NOT_FILENAME) != 0 |
394 | || is_target_filename (name)) | |
04affae3 JK |
395 | expanded_name = xstrdup (name); |
396 | else | |
397 | expanded_name = gdb_abspath (name); | |
224c3ddb SM |
398 | objfile->original_name |
399 | = (char *) obstack_copy0 (&objfile->objfile_obstack, | |
400 | expanded_name, | |
401 | strlen (expanded_name)); | |
04affae3 JK |
402 | xfree (expanded_name); |
403 | ||
d3e81981 DE |
404 | /* Update the per-objfile information that comes from the bfd, ensuring |
405 | that any data that is reference is saved in the per-objfile data | |
406 | region. */ | |
407 | ||
cbb099e8 | 408 | objfile->obfd = abfd; |
8ac244b4 | 409 | gdb_bfd_ref (abfd); |
c906108c SS |
410 | if (abfd != NULL) |
411 | { | |
c5aa993b | 412 | objfile->mtime = bfd_get_mtime (abfd); |
c906108c SS |
413 | |
414 | /* Build section table. */ | |
d82ea6a8 | 415 | build_objfile_section_table (objfile); |
c906108c SS |
416 | } |
417 | ||
706e3705 | 418 | objfile->per_bfd = get_objfile_bfd_data (objfile, abfd); |
6c95b8df PA |
419 | objfile->pspace = current_program_space; |
420 | ||
34643a32 TT |
421 | terminate_minimal_symbol_table (objfile); |
422 | ||
b8fbeb18 | 423 | /* Initialize the section indexes for this objfile, so that we can |
0df8b418 | 424 | later detect if they are used w/o being properly assigned to. */ |
b8fbeb18 | 425 | |
5c4e30ca DC |
426 | objfile->sect_index_text = -1; |
427 | objfile->sect_index_data = -1; | |
428 | objfile->sect_index_bss = -1; | |
429 | objfile->sect_index_rodata = -1; | |
430 | ||
0df8b418 | 431 | /* Add this file onto the tail of the linked list of other such files. */ |
c906108c | 432 | |
c5aa993b | 433 | objfile->next = NULL; |
c906108c SS |
434 | if (object_files == NULL) |
435 | object_files = objfile; | |
436 | else | |
437 | { | |
2f6e5d7e TG |
438 | struct objfile *last_one; |
439 | ||
c906108c | 440 | for (last_one = object_files; |
c5aa993b JM |
441 | last_one->next; |
442 | last_one = last_one->next); | |
443 | last_one->next = objfile; | |
c906108c SS |
444 | } |
445 | ||
0df8b418 | 446 | /* Save passed in flag bits. */ |
2df3850c | 447 | objfile->flags |= flags; |
c906108c | 448 | |
6c95b8df | 449 | /* Rebuild section map next time we need it. */ |
607ece04 | 450 | get_objfile_pspace_data (objfile->pspace)->new_objfiles_available = 1; |
bb272892 | 451 | |
6c95b8df | 452 | return objfile; |
c906108c SS |
453 | } |
454 | ||
5e2b427d | 455 | /* Retrieve the gdbarch associated with OBJFILE. */ |
9c1877ea | 456 | |
5e2b427d | 457 | struct gdbarch * |
9c1877ea | 458 | get_objfile_arch (const struct objfile *objfile) |
5e2b427d | 459 | { |
df6d5441 | 460 | return objfile->per_bfd->gdbarch; |
5e2b427d UW |
461 | } |
462 | ||
abd0a5fa JK |
463 | /* If there is a valid and known entry point, function fills *ENTRY_P with it |
464 | and returns non-zero; otherwise it returns zero. */ | |
9ab9195f | 465 | |
abd0a5fa JK |
466 | int |
467 | entry_point_address_query (CORE_ADDR *entry_p) | |
9ab9195f | 468 | { |
6ef55de7 | 469 | if (symfile_objfile == NULL || !symfile_objfile->per_bfd->ei.entry_point_p) |
3612b192 DJ |
470 | return 0; |
471 | ||
6ef55de7 | 472 | *entry_p = (symfile_objfile->per_bfd->ei.entry_point |
53eddfa6 | 473 | + ANOFFSET (symfile_objfile->section_offsets, |
6ef55de7 | 474 | symfile_objfile->per_bfd->ei.the_bfd_section_index)); |
3612b192 | 475 | |
abd0a5fa JK |
476 | return 1; |
477 | } | |
478 | ||
479 | /* Get current entry point address. Call error if it is not known. */ | |
480 | ||
481 | CORE_ADDR | |
482 | entry_point_address (void) | |
483 | { | |
484 | CORE_ADDR retval; | |
485 | ||
486 | if (!entry_point_address_query (&retval)) | |
487 | error (_("Entry point address is not known.")); | |
488 | ||
489 | return retval; | |
9ab9195f | 490 | } |
15831452 | 491 | |
15d123c9 TG |
492 | /* Iterator on PARENT and every separate debug objfile of PARENT. |
493 | The usage pattern is: | |
494 | for (objfile = parent; | |
495 | objfile; | |
496 | objfile = objfile_separate_debug_iterate (parent, objfile)) | |
497 | ... | |
498 | */ | |
499 | ||
500 | struct objfile * | |
501 | objfile_separate_debug_iterate (const struct objfile *parent, | |
502 | const struct objfile *objfile) | |
503 | { | |
504 | struct objfile *res; | |
505 | ||
399f313b | 506 | /* If any, return the first child. */ |
15d123c9 TG |
507 | res = objfile->separate_debug_objfile; |
508 | if (res) | |
509 | return res; | |
510 | ||
15d123c9 TG |
511 | /* Common case where there is no separate debug objfile. */ |
512 | if (objfile == parent) | |
513 | return NULL; | |
514 | ||
399f313b TG |
515 | /* Return the brother if any. Note that we don't iterate on brothers of |
516 | the parents. */ | |
517 | res = objfile->separate_debug_objfile_link; | |
518 | if (res) | |
519 | return res; | |
520 | ||
15d123c9 TG |
521 | for (res = objfile->separate_debug_objfile_backlink; |
522 | res != parent; | |
523 | res = res->separate_debug_objfile_backlink) | |
524 | { | |
525 | gdb_assert (res != NULL); | |
526 | if (res->separate_debug_objfile_link) | |
527 | return res->separate_debug_objfile_link; | |
528 | } | |
529 | return NULL; | |
530 | } | |
15831452 | 531 | |
5b5d99cf JB |
532 | /* Put one object file before a specified on in the global list. |
533 | This can be used to make sure an object file is destroyed before | |
0df8b418 | 534 | another when using ALL_OBJFILES_SAFE to free all objfiles. */ |
5b5d99cf JB |
535 | void |
536 | put_objfile_before (struct objfile *objfile, struct objfile *before_this) | |
537 | { | |
538 | struct objfile **objp; | |
539 | ||
540 | unlink_objfile (objfile); | |
541 | ||
542 | for (objp = &object_files; *objp != NULL; objp = &((*objp)->next)) | |
543 | { | |
544 | if (*objp == before_this) | |
545 | { | |
546 | objfile->next = *objp; | |
547 | *objp = objfile; | |
548 | return; | |
549 | } | |
550 | } | |
551 | ||
552 | internal_error (__FILE__, __LINE__, | |
e2e0b3e5 | 553 | _("put_objfile_before: before objfile not in list")); |
5b5d99cf JB |
554 | } |
555 | ||
c906108c SS |
556 | /* Unlink OBJFILE from the list of known objfiles, if it is found in the |
557 | list. | |
558 | ||
559 | It is not a bug, or error, to call this function if OBJFILE is not known | |
560 | to be in the current list. This is done in the case of mapped objfiles, | |
561 | for example, just to ensure that the mapped objfile doesn't appear twice | |
562 | in the list. Since the list is threaded, linking in a mapped objfile | |
563 | twice would create a circular list. | |
564 | ||
565 | If OBJFILE turns out to be in the list, we zap it's NEXT pointer after | |
566 | unlinking it, just to ensure that we have completely severed any linkages | |
0df8b418 | 567 | between the OBJFILE and the list. */ |
c906108c SS |
568 | |
569 | void | |
fba45db2 | 570 | unlink_objfile (struct objfile *objfile) |
c906108c | 571 | { |
c5aa993b | 572 | struct objfile **objpp; |
c906108c | 573 | |
c5aa993b | 574 | for (objpp = &object_files; *objpp != NULL; objpp = &((*objpp)->next)) |
c906108c | 575 | { |
c5aa993b | 576 | if (*objpp == objfile) |
c906108c | 577 | { |
c5aa993b JM |
578 | *objpp = (*objpp)->next; |
579 | objfile->next = NULL; | |
07cd4b97 | 580 | return; |
c906108c SS |
581 | } |
582 | } | |
07cd4b97 | 583 | |
8e65ff28 | 584 | internal_error (__FILE__, __LINE__, |
e2e0b3e5 | 585 | _("unlink_objfile: objfile already unlinked")); |
c906108c SS |
586 | } |
587 | ||
15d123c9 TG |
588 | /* Add OBJFILE as a separate debug objfile of PARENT. */ |
589 | ||
590 | void | |
591 | add_separate_debug_objfile (struct objfile *objfile, struct objfile *parent) | |
592 | { | |
593 | gdb_assert (objfile && parent); | |
594 | ||
595 | /* Must not be already in a list. */ | |
596 | gdb_assert (objfile->separate_debug_objfile_backlink == NULL); | |
597 | gdb_assert (objfile->separate_debug_objfile_link == NULL); | |
8a92335b JK |
598 | gdb_assert (objfile->separate_debug_objfile == NULL); |
599 | gdb_assert (parent->separate_debug_objfile_backlink == NULL); | |
600 | gdb_assert (parent->separate_debug_objfile_link == NULL); | |
15d123c9 TG |
601 | |
602 | objfile->separate_debug_objfile_backlink = parent; | |
603 | objfile->separate_debug_objfile_link = parent->separate_debug_objfile; | |
604 | parent->separate_debug_objfile = objfile; | |
605 | ||
606 | /* Put the separate debug object before the normal one, this is so that | |
0df8b418 | 607 | usage of the ALL_OBJFILES_SAFE macro will stay safe. */ |
15d123c9 TG |
608 | put_objfile_before (objfile, parent); |
609 | } | |
610 | ||
611 | /* Free all separate debug objfile of OBJFILE, but don't free OBJFILE | |
612 | itself. */ | |
613 | ||
614 | void | |
615 | free_objfile_separate_debug (struct objfile *objfile) | |
616 | { | |
617 | struct objfile *child; | |
618 | ||
619 | for (child = objfile->separate_debug_objfile; child;) | |
620 | { | |
621 | struct objfile *next_child = child->separate_debug_objfile_link; | |
622 | free_objfile (child); | |
623 | child = next_child; | |
624 | } | |
625 | } | |
c906108c | 626 | |
7580e917 | 627 | /* Destroy an objfile and all the symtabs and psymtabs under it. */ |
c906108c SS |
628 | |
629 | void | |
fba45db2 | 630 | free_objfile (struct objfile *objfile) |
c906108c | 631 | { |
63644780 NB |
632 | /* First notify observers that this objfile is about to be freed. */ |
633 | observer_notify_free_objfile (objfile); | |
634 | ||
15d123c9 TG |
635 | /* Free all separate debug objfiles. */ |
636 | free_objfile_separate_debug (objfile); | |
637 | ||
5b5d99cf JB |
638 | if (objfile->separate_debug_objfile_backlink) |
639 | { | |
640 | /* We freed the separate debug file, make sure the base objfile | |
641 | doesn't reference it. */ | |
15d123c9 TG |
642 | struct objfile *child; |
643 | ||
644 | child = objfile->separate_debug_objfile_backlink->separate_debug_objfile; | |
645 | ||
646 | if (child == objfile) | |
647 | { | |
648 | /* OBJFILE is the first child. */ | |
649 | objfile->separate_debug_objfile_backlink->separate_debug_objfile = | |
650 | objfile->separate_debug_objfile_link; | |
651 | } | |
652 | else | |
653 | { | |
654 | /* Find OBJFILE in the list. */ | |
655 | while (1) | |
656 | { | |
657 | if (child->separate_debug_objfile_link == objfile) | |
658 | { | |
659 | child->separate_debug_objfile_link = | |
660 | objfile->separate_debug_objfile_link; | |
661 | break; | |
662 | } | |
663 | child = child->separate_debug_objfile_link; | |
664 | gdb_assert (child); | |
665 | } | |
666 | } | |
5b5d99cf JB |
667 | } |
668 | ||
ae5a43e0 DJ |
669 | /* Remove any references to this objfile in the global value |
670 | lists. */ | |
671 | preserve_values (objfile); | |
672 | ||
9f743ef6 JK |
673 | /* It still may reference data modules have associated with the objfile and |
674 | the symbol file data. */ | |
675 | forget_cached_source_info_for_objfile (objfile); | |
676 | ||
2f202fde | 677 | breakpoint_free_objfile (objfile); |
afedecd3 | 678 | btrace_free_objfile (objfile); |
2f202fde | 679 | |
c906108c SS |
680 | /* First do any symbol file specific actions required when we are |
681 | finished with a particular symbol file. Note that if the objfile | |
682 | is using reusable symbol information (via mmalloc) then each of | |
683 | these routines is responsible for doing the correct thing, either | |
684 | freeing things which are valid only during this particular gdb | |
0df8b418 | 685 | execution, or leaving them to be reused during the next one. */ |
c906108c | 686 | |
c5aa993b | 687 | if (objfile->sf != NULL) |
c906108c | 688 | { |
c5aa993b | 689 | (*objfile->sf->sym_finish) (objfile); |
c906108c SS |
690 | } |
691 | ||
9f743ef6 JK |
692 | /* Discard any data modules have associated with the objfile. The function |
693 | still may reference objfile->obfd. */ | |
c5bc3a77 DJ |
694 | objfile_free_data (objfile); |
695 | ||
706e3705 TT |
696 | if (objfile->obfd) |
697 | gdb_bfd_unref (objfile->obfd); | |
698 | else | |
699 | free_objfile_per_bfd_storage (objfile->per_bfd); | |
c906108c | 700 | |
0df8b418 | 701 | /* Remove it from the chain of all objfiles. */ |
c906108c SS |
702 | |
703 | unlink_objfile (objfile); | |
704 | ||
adb7f338 JK |
705 | if (objfile == symfile_objfile) |
706 | symfile_objfile = NULL; | |
c906108c | 707 | |
c906108c SS |
708 | /* Before the symbol table code was redone to make it easier to |
709 | selectively load and remove information particular to a specific | |
710 | linkage unit, gdb used to do these things whenever the monolithic | |
711 | symbol table was blown away. How much still needs to be done | |
712 | is unknown, but we play it safe for now and keep each action until | |
0df8b418 | 713 | it is shown to be no longer needed. */ |
c5aa993b | 714 | |
cb5d864f FF |
715 | /* Not all our callers call clear_symtab_users (objfile_purge_solibs, |
716 | for example), so we need to call this here. */ | |
c906108c SS |
717 | clear_pc_function_cache (); |
718 | ||
9bdcbae7 DJ |
719 | /* Clear globals which might have pointed into a removed objfile. |
720 | FIXME: It's not clear which of these are supposed to persist | |
721 | between expressions and which ought to be reset each time. */ | |
722 | expression_context_block = NULL; | |
723 | innermost_block = NULL; | |
724 | ||
cb5d864f | 725 | /* Check to see if the current_source_symtab belongs to this objfile, |
0df8b418 | 726 | and if so, call clear_current_source_symtab_and_line. */ |
cb5d864f FF |
727 | |
728 | { | |
729 | struct symtab_and_line cursal = get_current_source_symtab_and_line (); | |
cb5d864f | 730 | |
eb822aa6 | 731 | if (cursal.symtab && SYMTAB_OBJFILE (cursal.symtab) == objfile) |
00174a86 | 732 | clear_current_source_symtab_and_line (); |
cb5d864f FF |
733 | } |
734 | ||
78a4a9b9 | 735 | if (objfile->global_psymbols.list) |
2dc74dc1 | 736 | xfree (objfile->global_psymbols.list); |
78a4a9b9 | 737 | if (objfile->static_psymbols.list) |
2dc74dc1 | 738 | xfree (objfile->static_psymbols.list); |
0df8b418 | 739 | /* Free the obstacks for non-reusable objfiles. */ |
710e1a31 | 740 | psymbol_bcache_free (objfile->psymbol_cache); |
b99607ea | 741 | obstack_free (&objfile->objfile_obstack, 0); |
6c95b8df PA |
742 | |
743 | /* Rebuild section map next time we need it. */ | |
607ece04 | 744 | get_objfile_pspace_data (objfile->pspace)->section_map_dirty = 1; |
6c95b8df | 745 | |
63e43d3a PMR |
746 | /* Free the map for static links. There's no need to free static link |
747 | themselves since they were allocated on the objstack. */ | |
748 | if (objfile->static_links != NULL) | |
749 | htab_delete (objfile->static_links); | |
750 | ||
020f7036 | 751 | /* The last thing we do is free the objfile struct itself. */ |
2dc74dc1 | 752 | xfree (objfile); |
c906108c SS |
753 | } |
754 | ||
74b7792f AC |
755 | static void |
756 | do_free_objfile_cleanup (void *obj) | |
757 | { | |
758 | free_objfile (obj); | |
759 | } | |
760 | ||
761 | struct cleanup * | |
762 | make_cleanup_free_objfile (struct objfile *obj) | |
763 | { | |
764 | return make_cleanup (do_free_objfile_cleanup, obj); | |
765 | } | |
c906108c SS |
766 | |
767 | /* Free all the object files at once and clean up their users. */ | |
768 | ||
769 | void | |
fba45db2 | 770 | free_all_objfiles (void) |
c906108c SS |
771 | { |
772 | struct objfile *objfile, *temp; | |
0133421a JK |
773 | struct so_list *so; |
774 | ||
775 | /* Any objfile referencewould become stale. */ | |
776 | for (so = master_so_list (); so; so = so->next) | |
777 | gdb_assert (so->objfile == NULL); | |
c906108c SS |
778 | |
779 | ALL_OBJFILES_SAFE (objfile, temp) | |
c5aa993b JM |
780 | { |
781 | free_objfile (objfile); | |
782 | } | |
c1e56572 | 783 | clear_symtab_users (0); |
c906108c SS |
784 | } |
785 | \f | |
34eaf542 TT |
786 | /* A helper function for objfile_relocate1 that relocates a single |
787 | symbol. */ | |
788 | ||
789 | static void | |
790 | relocate_one_symbol (struct symbol *sym, struct objfile *objfile, | |
791 | struct section_offsets *delta) | |
792 | { | |
793 | fixup_symbol_section (sym, objfile); | |
794 | ||
795 | /* The RS6000 code from which this was taken skipped | |
796 | any symbols in STRUCT_DOMAIN or UNDEF_DOMAIN. | |
797 | But I'm leaving out that test, on the theory that | |
798 | they can't possibly pass the tests below. */ | |
799 | if ((SYMBOL_CLASS (sym) == LOC_LABEL | |
800 | || SYMBOL_CLASS (sym) == LOC_STATIC) | |
801 | && SYMBOL_SECTION (sym) >= 0) | |
802 | { | |
803 | SYMBOL_VALUE_ADDRESS (sym) += ANOFFSET (delta, SYMBOL_SECTION (sym)); | |
804 | } | |
805 | } | |
806 | ||
c906108c | 807 | /* Relocate OBJFILE to NEW_OFFSETS. There should be OBJFILE->NUM_SECTIONS |
b260e109 JK |
808 | entries in new_offsets. SEPARATE_DEBUG_OBJFILE is not touched here. |
809 | Return non-zero iff any change happened. */ | |
567995e1 | 810 | |
b260e109 | 811 | static int |
5cc80db3 | 812 | objfile_relocate1 (struct objfile *objfile, |
3189cb12 | 813 | const struct section_offsets *new_offsets) |
c906108c | 814 | { |
30510692 | 815 | struct obj_section *s; |
d4f3574e | 816 | struct section_offsets *delta = |
a39a16c4 MM |
817 | ((struct section_offsets *) |
818 | alloca (SIZEOF_N_SECTION_OFFSETS (objfile->num_sections))); | |
c906108c | 819 | |
5cc80db3 MS |
820 | int i; |
821 | int something_changed = 0; | |
822 | ||
823 | for (i = 0; i < objfile->num_sections; ++i) | |
824 | { | |
825 | delta->offsets[i] = | |
826 | ANOFFSET (new_offsets, i) - ANOFFSET (objfile->section_offsets, i); | |
827 | if (ANOFFSET (delta, i) != 0) | |
828 | something_changed = 1; | |
829 | } | |
830 | if (!something_changed) | |
831 | return 0; | |
c906108c SS |
832 | |
833 | /* OK, get all the symtabs. */ | |
834 | { | |
43f3e411 | 835 | struct compunit_symtab *cust; |
c906108c SS |
836 | struct symtab *s; |
837 | ||
43f3e411 | 838 | ALL_OBJFILE_FILETABS (objfile, cust, s) |
c5aa993b JM |
839 | { |
840 | struct linetable *l; | |
c5aa993b JM |
841 | int i; |
842 | ||
843 | /* First the line table. */ | |
8435453b | 844 | l = SYMTAB_LINETABLE (s); |
c5aa993b JM |
845 | if (l) |
846 | { | |
847 | for (i = 0; i < l->nitems; ++i) | |
43f3e411 DE |
848 | l->item[i].pc += ANOFFSET (delta, |
849 | COMPUNIT_BLOCK_LINE_SECTION | |
850 | (cust)); | |
c5aa993b | 851 | } |
43f3e411 | 852 | } |
c906108c | 853 | |
43f3e411 DE |
854 | ALL_OBJFILE_COMPUNITS (objfile, cust) |
855 | { | |
856 | const struct blockvector *bv = COMPUNIT_BLOCKVECTOR (cust); | |
857 | int block_line_section = COMPUNIT_BLOCK_LINE_SECTION (cust); | |
c906108c | 858 | |
b101f7a1 UW |
859 | if (BLOCKVECTOR_MAP (bv)) |
860 | addrmap_relocate (BLOCKVECTOR_MAP (bv), | |
43f3e411 | 861 | ANOFFSET (delta, block_line_section)); |
b101f7a1 | 862 | |
c5aa993b JM |
863 | for (i = 0; i < BLOCKVECTOR_NBLOCKS (bv); ++i) |
864 | { | |
865 | struct block *b; | |
e88c90f2 | 866 | struct symbol *sym; |
de4f826b | 867 | struct dict_iterator iter; |
c5aa993b JM |
868 | |
869 | b = BLOCKVECTOR_BLOCK (bv, i); | |
43f3e411 DE |
870 | BLOCK_START (b) += ANOFFSET (delta, block_line_section); |
871 | BLOCK_END (b) += ANOFFSET (delta, block_line_section); | |
c5aa993b | 872 | |
8157b174 TT |
873 | /* We only want to iterate over the local symbols, not any |
874 | symbols in included symtabs. */ | |
875 | ALL_DICT_SYMBOLS (BLOCK_DICT (b), iter, sym) | |
c5aa993b | 876 | { |
34eaf542 | 877 | relocate_one_symbol (sym, objfile, delta); |
c5aa993b JM |
878 | } |
879 | } | |
880 | } | |
c906108c SS |
881 | } |
882 | ||
34eaf542 TT |
883 | /* Relocate isolated symbols. */ |
884 | { | |
885 | struct symbol *iter; | |
886 | ||
887 | for (iter = objfile->template_symbols; iter; iter = iter->hash_next) | |
888 | relocate_one_symbol (iter, objfile, delta); | |
889 | } | |
890 | ||
9b14d7aa JK |
891 | if (objfile->psymtabs_addrmap) |
892 | addrmap_relocate (objfile->psymtabs_addrmap, | |
893 | ANOFFSET (delta, SECT_OFF_TEXT (objfile))); | |
894 | ||
ccefe4c4 TT |
895 | if (objfile->sf) |
896 | objfile->sf->qf->relocate (objfile, new_offsets, delta); | |
c906108c | 897 | |
f1f2b5f4 PA |
898 | { |
899 | int i; | |
5cc80db3 | 900 | |
f1f2b5f4 PA |
901 | for (i = 0; i < objfile->num_sections; ++i) |
902 | (objfile->section_offsets)->offsets[i] = ANOFFSET (new_offsets, i); | |
903 | } | |
904 | ||
905 | /* Rebuild section map next time we need it. */ | |
607ece04 | 906 | get_objfile_pspace_data (objfile->pspace)->section_map_dirty = 1; |
f1f2b5f4 | 907 | |
30510692 DJ |
908 | /* Update the table in exec_ops, used to read memory. */ |
909 | ALL_OBJFILE_OSECTIONS (objfile, s) | |
910 | { | |
65cf3563 | 911 | int idx = s - objfile->sections; |
30510692 DJ |
912 | |
913 | exec_set_section_address (bfd_get_filename (objfile->obfd), idx, | |
f1f6aadf | 914 | obj_section_addr (s)); |
30510692 | 915 | } |
b260e109 JK |
916 | |
917 | /* Data changed. */ | |
918 | return 1; | |
567995e1 JK |
919 | } |
920 | ||
921 | /* Relocate OBJFILE to NEW_OFFSETS. There should be OBJFILE->NUM_SECTIONS | |
922 | entries in new_offsets. Process also OBJFILE's SEPARATE_DEBUG_OBJFILEs. | |
923 | ||
924 | The number and ordering of sections does differ between the two objfiles. | |
925 | Only their names match. Also the file offsets will differ (objfile being | |
926 | possibly prelinked but separate_debug_objfile is probably not prelinked) but | |
927 | the in-memory absolute address as specified by NEW_OFFSETS must match both | |
928 | files. */ | |
929 | ||
930 | void | |
3189cb12 DE |
931 | objfile_relocate (struct objfile *objfile, |
932 | const struct section_offsets *new_offsets) | |
567995e1 JK |
933 | { |
934 | struct objfile *debug_objfile; | |
b260e109 | 935 | int changed = 0; |
567995e1 | 936 | |
b260e109 | 937 | changed |= objfile_relocate1 (objfile, new_offsets); |
567995e1 JK |
938 | |
939 | for (debug_objfile = objfile->separate_debug_objfile; | |
940 | debug_objfile; | |
941 | debug_objfile = objfile_separate_debug_iterate (objfile, debug_objfile)) | |
942 | { | |
943 | struct section_addr_info *objfile_addrs; | |
944 | struct section_offsets *new_debug_offsets; | |
567995e1 JK |
945 | struct cleanup *my_cleanups; |
946 | ||
947 | objfile_addrs = build_section_addr_info_from_objfile (objfile); | |
948 | my_cleanups = make_cleanup (xfree, objfile_addrs); | |
949 | ||
950 | /* Here OBJFILE_ADDRS contain the correct absolute addresses, the | |
951 | relative ones must be already created according to debug_objfile. */ | |
952 | ||
953 | addr_info_make_relative (objfile_addrs, debug_objfile->obfd); | |
954 | ||
955 | gdb_assert (debug_objfile->num_sections | |
d445b2f6 | 956 | == gdb_bfd_count_sections (debug_objfile->obfd)); |
4fc06681 | 957 | new_debug_offsets = |
224c3ddb SM |
958 | ((struct section_offsets *) |
959 | xmalloc (SIZEOF_N_SECTION_OFFSETS (debug_objfile->num_sections))); | |
567995e1 JK |
960 | make_cleanup (xfree, new_debug_offsets); |
961 | relative_addr_info_to_section_offsets (new_debug_offsets, | |
962 | debug_objfile->num_sections, | |
963 | objfile_addrs); | |
964 | ||
b260e109 | 965 | changed |= objfile_relocate1 (debug_objfile, new_debug_offsets); |
567995e1 JK |
966 | |
967 | do_cleanups (my_cleanups); | |
968 | } | |
30510692 | 969 | |
0df8b418 | 970 | /* Relocate breakpoints as necessary, after things are relocated. */ |
b260e109 JK |
971 | if (changed) |
972 | breakpoint_re_set (); | |
c906108c | 973 | } |
4141a416 JB |
974 | |
975 | /* Rebase (add to the offsets) OBJFILE by SLIDE. SEPARATE_DEBUG_OBJFILE is | |
976 | not touched here. | |
977 | Return non-zero iff any change happened. */ | |
978 | ||
979 | static int | |
980 | objfile_rebase1 (struct objfile *objfile, CORE_ADDR slide) | |
981 | { | |
982 | struct section_offsets *new_offsets = | |
983 | ((struct section_offsets *) | |
984 | alloca (SIZEOF_N_SECTION_OFFSETS (objfile->num_sections))); | |
985 | int i; | |
986 | ||
987 | for (i = 0; i < objfile->num_sections; ++i) | |
988 | new_offsets->offsets[i] = slide; | |
989 | ||
990 | return objfile_relocate1 (objfile, new_offsets); | |
991 | } | |
992 | ||
993 | /* Rebase (add to the offsets) OBJFILE by SLIDE. Process also OBJFILE's | |
994 | SEPARATE_DEBUG_OBJFILEs. */ | |
995 | ||
996 | void | |
997 | objfile_rebase (struct objfile *objfile, CORE_ADDR slide) | |
998 | { | |
999 | struct objfile *debug_objfile; | |
1000 | int changed = 0; | |
1001 | ||
1002 | changed |= objfile_rebase1 (objfile, slide); | |
1003 | ||
1004 | for (debug_objfile = objfile->separate_debug_objfile; | |
1005 | debug_objfile; | |
1006 | debug_objfile = objfile_separate_debug_iterate (objfile, debug_objfile)) | |
1007 | changed |= objfile_rebase1 (debug_objfile, slide); | |
1008 | ||
1009 | /* Relocate breakpoints as necessary, after things are relocated. */ | |
1010 | if (changed) | |
1011 | breakpoint_re_set (); | |
1012 | } | |
c906108c | 1013 | \f |
55333a84 DE |
1014 | /* Return non-zero if OBJFILE has partial symbols. */ |
1015 | ||
1016 | int | |
1017 | objfile_has_partial_symbols (struct objfile *objfile) | |
1018 | { | |
b11896a5 TT |
1019 | if (!objfile->sf) |
1020 | return 0; | |
3e03848b JK |
1021 | |
1022 | /* If we have not read psymbols, but we have a function capable of reading | |
1023 | them, then that is an indication that they are in fact available. Without | |
1024 | this function the symbols may have been already read in but they also may | |
1025 | not be present in this objfile. */ | |
1026 | if ((objfile->flags & OBJF_PSYMTABS_READ) == 0 | |
1027 | && objfile->sf->sym_read_psymbols != NULL) | |
1028 | return 1; | |
1029 | ||
b11896a5 | 1030 | return objfile->sf->qf->has_symbols (objfile); |
55333a84 DE |
1031 | } |
1032 | ||
1033 | /* Return non-zero if OBJFILE has full symbols. */ | |
1034 | ||
1035 | int | |
1036 | objfile_has_full_symbols (struct objfile *objfile) | |
1037 | { | |
43f3e411 | 1038 | return objfile->compunit_symtabs != NULL; |
55333a84 DE |
1039 | } |
1040 | ||
e361b228 | 1041 | /* Return non-zero if OBJFILE has full or partial symbols, either directly |
15d123c9 | 1042 | or through a separate debug file. */ |
e361b228 TG |
1043 | |
1044 | int | |
1045 | objfile_has_symbols (struct objfile *objfile) | |
1046 | { | |
15d123c9 | 1047 | struct objfile *o; |
e361b228 | 1048 | |
15d123c9 TG |
1049 | for (o = objfile; o; o = objfile_separate_debug_iterate (objfile, o)) |
1050 | if (objfile_has_partial_symbols (o) || objfile_has_full_symbols (o)) | |
1051 | return 1; | |
e361b228 TG |
1052 | return 0; |
1053 | } | |
1054 | ||
1055 | ||
c906108c SS |
1056 | /* Many places in gdb want to test just to see if we have any partial |
1057 | symbols available. This function returns zero if none are currently | |
0df8b418 | 1058 | available, nonzero otherwise. */ |
c906108c SS |
1059 | |
1060 | int | |
fba45db2 | 1061 | have_partial_symbols (void) |
c906108c SS |
1062 | { |
1063 | struct objfile *ofp; | |
1064 | ||
1065 | ALL_OBJFILES (ofp) | |
c5aa993b | 1066 | { |
55333a84 DE |
1067 | if (objfile_has_partial_symbols (ofp)) |
1068 | return 1; | |
c5aa993b | 1069 | } |
c906108c SS |
1070 | return 0; |
1071 | } | |
1072 | ||
1073 | /* Many places in gdb want to test just to see if we have any full | |
1074 | symbols available. This function returns zero if none are currently | |
0df8b418 | 1075 | available, nonzero otherwise. */ |
c906108c SS |
1076 | |
1077 | int | |
fba45db2 | 1078 | have_full_symbols (void) |
c906108c SS |
1079 | { |
1080 | struct objfile *ofp; | |
1081 | ||
1082 | ALL_OBJFILES (ofp) | |
c5aa993b | 1083 | { |
55333a84 DE |
1084 | if (objfile_has_full_symbols (ofp)) |
1085 | return 1; | |
c5aa993b | 1086 | } |
c906108c SS |
1087 | return 0; |
1088 | } | |
1089 | ||
1090 | ||
1091 | /* This operations deletes all objfile entries that represent solibs that | |
1092 | weren't explicitly loaded by the user, via e.g., the add-symbol-file | |
0df8b418 MS |
1093 | command. */ |
1094 | ||
c906108c | 1095 | void |
fba45db2 | 1096 | objfile_purge_solibs (void) |
c906108c | 1097 | { |
c5aa993b JM |
1098 | struct objfile *objf; |
1099 | struct objfile *temp; | |
c906108c SS |
1100 | |
1101 | ALL_OBJFILES_SAFE (objf, temp) | |
1102 | { | |
1103 | /* We assume that the solib package has been purged already, or will | |
0df8b418 MS |
1104 | be soon. */ |
1105 | ||
2df3850c | 1106 | if (!(objf->flags & OBJF_USERLOADED) && (objf->flags & OBJF_SHARED)) |
c906108c SS |
1107 | free_objfile (objf); |
1108 | } | |
1109 | } | |
1110 | ||
1111 | ||
1112 | /* Many places in gdb want to test just to see if we have any minimal | |
1113 | symbols available. This function returns zero if none are currently | |
0df8b418 | 1114 | available, nonzero otherwise. */ |
c906108c SS |
1115 | |
1116 | int | |
fba45db2 | 1117 | have_minimal_symbols (void) |
c906108c SS |
1118 | { |
1119 | struct objfile *ofp; | |
1120 | ||
1121 | ALL_OBJFILES (ofp) | |
c5aa993b | 1122 | { |
34643a32 | 1123 | if (ofp->per_bfd->minimal_symbol_count > 0) |
c5aa993b JM |
1124 | { |
1125 | return 1; | |
1126 | } | |
1127 | } | |
c906108c SS |
1128 | return 0; |
1129 | } | |
1130 | ||
a845f5cb PP |
1131 | /* Qsort comparison function. */ |
1132 | ||
1133 | static int | |
1134 | qsort_cmp (const void *a, const void *b) | |
1135 | { | |
1136 | const struct obj_section *sect1 = *(const struct obj_section **) a; | |
1137 | const struct obj_section *sect2 = *(const struct obj_section **) b; | |
1138 | const CORE_ADDR sect1_addr = obj_section_addr (sect1); | |
1139 | const CORE_ADDR sect2_addr = obj_section_addr (sect2); | |
1140 | ||
1141 | if (sect1_addr < sect2_addr) | |
6fbf07cd | 1142 | return -1; |
a845f5cb | 1143 | else if (sect1_addr > sect2_addr) |
6fbf07cd PP |
1144 | return 1; |
1145 | else | |
5cc80db3 MS |
1146 | { |
1147 | /* Sections are at the same address. This could happen if | |
1148 | A) we have an objfile and a separate debuginfo. | |
1149 | B) we are confused, and have added sections without proper relocation, | |
0df8b418 | 1150 | or something like that. */ |
5cc80db3 MS |
1151 | |
1152 | const struct objfile *const objfile1 = sect1->objfile; | |
1153 | const struct objfile *const objfile2 = sect2->objfile; | |
1154 | ||
1155 | if (objfile1->separate_debug_objfile == objfile2 | |
1156 | || objfile2->separate_debug_objfile == objfile1) | |
1157 | { | |
1158 | /* Case A. The ordering doesn't matter: separate debuginfo files | |
1159 | will be filtered out later. */ | |
1160 | ||
1161 | return 0; | |
1162 | } | |
1163 | ||
1164 | /* Case B. Maintain stable sort order, so bugs in GDB are easier to | |
1165 | triage. This section could be slow (since we iterate over all | |
1166 | objfiles in each call to qsort_cmp), but this shouldn't happen | |
1167 | very often (GDB is already in a confused state; one hopes this | |
1168 | doesn't happen at all). If you discover that significant time is | |
1169 | spent in the loops below, do 'set complaints 100' and examine the | |
1170 | resulting complaints. */ | |
1171 | ||
1172 | if (objfile1 == objfile2) | |
1173 | { | |
1174 | /* Both sections came from the same objfile. We are really confused. | |
1175 | Sort on sequence order of sections within the objfile. */ | |
1176 | ||
1177 | const struct obj_section *osect; | |
1178 | ||
1179 | ALL_OBJFILE_OSECTIONS (objfile1, osect) | |
1180 | if (osect == sect1) | |
1181 | return -1; | |
1182 | else if (osect == sect2) | |
1183 | return 1; | |
1184 | ||
1185 | /* We should have found one of the sections before getting here. */ | |
f3574227 | 1186 | gdb_assert_not_reached ("section not found"); |
5cc80db3 MS |
1187 | } |
1188 | else | |
1189 | { | |
1190 | /* Sort on sequence number of the objfile in the chain. */ | |
1191 | ||
1192 | const struct objfile *objfile; | |
1193 | ||
1194 | ALL_OBJFILES (objfile) | |
1195 | if (objfile == objfile1) | |
1196 | return -1; | |
1197 | else if (objfile == objfile2) | |
1198 | return 1; | |
1199 | ||
1200 | /* We should have found one of the objfiles before getting here. */ | |
f3574227 | 1201 | gdb_assert_not_reached ("objfile not found"); |
5cc80db3 MS |
1202 | } |
1203 | } | |
6fbf07cd PP |
1204 | |
1205 | /* Unreachable. */ | |
f3574227 | 1206 | gdb_assert_not_reached ("unexpected code path"); |
a845f5cb PP |
1207 | return 0; |
1208 | } | |
1209 | ||
3aad21cf PP |
1210 | /* Select "better" obj_section to keep. We prefer the one that came from |
1211 | the real object, rather than the one from separate debuginfo. | |
1212 | Most of the time the two sections are exactly identical, but with | |
1213 | prelinking the .rel.dyn section in the real object may have different | |
1214 | size. */ | |
1215 | ||
1216 | static struct obj_section * | |
1217 | preferred_obj_section (struct obj_section *a, struct obj_section *b) | |
1218 | { | |
1219 | gdb_assert (obj_section_addr (a) == obj_section_addr (b)); | |
1220 | gdb_assert ((a->objfile->separate_debug_objfile == b->objfile) | |
1221 | || (b->objfile->separate_debug_objfile == a->objfile)); | |
1222 | gdb_assert ((a->objfile->separate_debug_objfile_backlink == b->objfile) | |
1223 | || (b->objfile->separate_debug_objfile_backlink == a->objfile)); | |
1224 | ||
1225 | if (a->objfile->separate_debug_objfile != NULL) | |
1226 | return a; | |
1227 | return b; | |
1228 | } | |
1229 | ||
6fbf07cd PP |
1230 | /* Return 1 if SECTION should be inserted into the section map. |
1231 | We want to insert only non-overlay and non-TLS section. */ | |
1232 | ||
1233 | static int | |
1234 | insert_section_p (const struct bfd *abfd, | |
1235 | const struct bfd_section *section) | |
1236 | { | |
1237 | const bfd_vma lma = bfd_section_lma (abfd, section); | |
1238 | ||
50f8ea94 | 1239 | if (overlay_debugging && lma != 0 && lma != bfd_section_vma (abfd, section) |
6fbf07cd PP |
1240 | && (bfd_get_file_flags (abfd) & BFD_IN_MEMORY) == 0) |
1241 | /* This is an overlay section. IN_MEMORY check is needed to avoid | |
1242 | discarding sections from the "system supplied DSO" (aka vdso) | |
1243 | on some Linux systems (e.g. Fedora 11). */ | |
1244 | return 0; | |
1245 | if ((bfd_get_section_flags (abfd, section) & SEC_THREAD_LOCAL) != 0) | |
1246 | /* This is a TLS section. */ | |
1247 | return 0; | |
1248 | ||
1249 | return 1; | |
1250 | } | |
1251 | ||
1252 | /* Filter out overlapping sections where one section came from the real | |
1253 | objfile, and the other from a separate debuginfo file. | |
1254 | Return the size of table after redundant sections have been eliminated. */ | |
1255 | ||
1256 | static int | |
1257 | filter_debuginfo_sections (struct obj_section **map, int map_size) | |
1258 | { | |
1259 | int i, j; | |
1260 | ||
1261 | for (i = 0, j = 0; i < map_size - 1; i++) | |
1262 | { | |
1263 | struct obj_section *const sect1 = map[i]; | |
1264 | struct obj_section *const sect2 = map[i + 1]; | |
1265 | const struct objfile *const objfile1 = sect1->objfile; | |
1266 | const struct objfile *const objfile2 = sect2->objfile; | |
1267 | const CORE_ADDR sect1_addr = obj_section_addr (sect1); | |
1268 | const CORE_ADDR sect2_addr = obj_section_addr (sect2); | |
1269 | ||
1270 | if (sect1_addr == sect2_addr | |
1271 | && (objfile1->separate_debug_objfile == objfile2 | |
1272 | || objfile2->separate_debug_objfile == objfile1)) | |
1273 | { | |
1274 | map[j++] = preferred_obj_section (sect1, sect2); | |
1275 | ++i; | |
1276 | } | |
1277 | else | |
1278 | map[j++] = sect1; | |
1279 | } | |
1280 | ||
1281 | if (i < map_size) | |
1282 | { | |
1283 | gdb_assert (i == map_size - 1); | |
1284 | map[j++] = map[i]; | |
1285 | } | |
1286 | ||
1287 | /* The map should not have shrunk to less than half the original size. */ | |
1288 | gdb_assert (map_size / 2 <= j); | |
1289 | ||
1290 | return j; | |
1291 | } | |
1292 | ||
1293 | /* Filter out overlapping sections, issuing a warning if any are found. | |
1294 | Overlapping sections could really be overlay sections which we didn't | |
1295 | classify as such in insert_section_p, or we could be dealing with a | |
1296 | corrupt binary. */ | |
1297 | ||
1298 | static int | |
1299 | filter_overlapping_sections (struct obj_section **map, int map_size) | |
1300 | { | |
1301 | int i, j; | |
1302 | ||
1303 | for (i = 0, j = 0; i < map_size - 1; ) | |
1304 | { | |
1305 | int k; | |
1306 | ||
1307 | map[j++] = map[i]; | |
1308 | for (k = i + 1; k < map_size; k++) | |
1309 | { | |
1310 | struct obj_section *const sect1 = map[i]; | |
1311 | struct obj_section *const sect2 = map[k]; | |
1312 | const CORE_ADDR sect1_addr = obj_section_addr (sect1); | |
1313 | const CORE_ADDR sect2_addr = obj_section_addr (sect2); | |
1314 | const CORE_ADDR sect1_endaddr = obj_section_endaddr (sect1); | |
1315 | ||
1316 | gdb_assert (sect1_addr <= sect2_addr); | |
1317 | ||
1318 | if (sect1_endaddr <= sect2_addr) | |
1319 | break; | |
1320 | else | |
1321 | { | |
1322 | /* We have an overlap. Report it. */ | |
1323 | ||
1324 | struct objfile *const objf1 = sect1->objfile; | |
1325 | struct objfile *const objf2 = sect2->objfile; | |
1326 | ||
6fbf07cd PP |
1327 | const struct bfd_section *const bfds1 = sect1->the_bfd_section; |
1328 | const struct bfd_section *const bfds2 = sect2->the_bfd_section; | |
1329 | ||
1330 | const CORE_ADDR sect2_endaddr = obj_section_endaddr (sect2); | |
1331 | ||
1332 | struct gdbarch *const gdbarch = get_objfile_arch (objf1); | |
1333 | ||
1334 | complaint (&symfile_complaints, | |
1335 | _("unexpected overlap between:\n" | |
1336 | " (A) section `%s' from `%s' [%s, %s)\n" | |
1337 | " (B) section `%s' from `%s' [%s, %s).\n" | |
1338 | "Will ignore section B"), | |
4262abfb | 1339 | bfd_section_name (abfd1, bfds1), objfile_name (objf1), |
6fbf07cd PP |
1340 | paddress (gdbarch, sect1_addr), |
1341 | paddress (gdbarch, sect1_endaddr), | |
4262abfb | 1342 | bfd_section_name (abfd2, bfds2), objfile_name (objf2), |
6fbf07cd PP |
1343 | paddress (gdbarch, sect2_addr), |
1344 | paddress (gdbarch, sect2_endaddr)); | |
1345 | } | |
1346 | } | |
1347 | i = k; | |
1348 | } | |
1349 | ||
1350 | if (i < map_size) | |
1351 | { | |
1352 | gdb_assert (i == map_size - 1); | |
1353 | map[j++] = map[i]; | |
1354 | } | |
1355 | ||
1356 | return j; | |
1357 | } | |
1358 | ||
1359 | ||
1360 | /* Update PMAP, PMAP_SIZE with sections from all objfiles, excluding any | |
1361 | TLS, overlay and overlapping sections. */ | |
a845f5cb PP |
1362 | |
1363 | static void | |
6c95b8df PA |
1364 | update_section_map (struct program_space *pspace, |
1365 | struct obj_section ***pmap, int *pmap_size) | |
a845f5cb | 1366 | { |
607ece04 | 1367 | struct objfile_pspace_info *pspace_info; |
6fbf07cd | 1368 | int alloc_size, map_size, i; |
a845f5cb PP |
1369 | struct obj_section *s, **map; |
1370 | struct objfile *objfile; | |
1371 | ||
607ece04 GB |
1372 | pspace_info = get_objfile_pspace_data (pspace); |
1373 | gdb_assert (pspace_info->section_map_dirty != 0 | |
1374 | || pspace_info->new_objfiles_available != 0); | |
a845f5cb PP |
1375 | |
1376 | map = *pmap; | |
1377 | xfree (map); | |
1378 | ||
6fbf07cd | 1379 | alloc_size = 0; |
6c95b8df PA |
1380 | ALL_PSPACE_OBJFILES (pspace, objfile) |
1381 | ALL_OBJFILE_OSECTIONS (objfile, s) | |
1382 | if (insert_section_p (objfile->obfd, s->the_bfd_section)) | |
1383 | alloc_size += 1; | |
a845f5cb | 1384 | |
65a97ab3 PP |
1385 | /* This happens on detach/attach (e.g. in gdb.base/attach.exp). */ |
1386 | if (alloc_size == 0) | |
1387 | { | |
1388 | *pmap = NULL; | |
1389 | *pmap_size = 0; | |
1390 | return; | |
1391 | } | |
1392 | ||
8d749320 | 1393 | map = XNEWVEC (struct obj_section *, alloc_size); |
a845f5cb | 1394 | |
3aad21cf | 1395 | i = 0; |
6c95b8df PA |
1396 | ALL_PSPACE_OBJFILES (pspace, objfile) |
1397 | ALL_OBJFILE_OSECTIONS (objfile, s) | |
1398 | if (insert_section_p (objfile->obfd, s->the_bfd_section)) | |
1399 | map[i++] = s; | |
a845f5cb | 1400 | |
6fbf07cd PP |
1401 | qsort (map, alloc_size, sizeof (*map), qsort_cmp); |
1402 | map_size = filter_debuginfo_sections(map, alloc_size); | |
1403 | map_size = filter_overlapping_sections(map, map_size); | |
a845f5cb | 1404 | |
6fbf07cd PP |
1405 | if (map_size < alloc_size) |
1406 | /* Some sections were eliminated. Trim excess space. */ | |
224c3ddb | 1407 | map = XRESIZEVEC (struct obj_section *, map, map_size); |
3aad21cf | 1408 | else |
6fbf07cd | 1409 | gdb_assert (alloc_size == map_size); |
3aad21cf | 1410 | |
a845f5cb PP |
1411 | *pmap = map; |
1412 | *pmap_size = map_size; | |
1413 | } | |
1414 | ||
0df8b418 | 1415 | /* Bsearch comparison function. */ |
a845f5cb PP |
1416 | |
1417 | static int | |
1418 | bsearch_cmp (const void *key, const void *elt) | |
1419 | { | |
1420 | const CORE_ADDR pc = *(CORE_ADDR *) key; | |
1421 | const struct obj_section *section = *(const struct obj_section **) elt; | |
1422 | ||
1423 | if (pc < obj_section_addr (section)) | |
1424 | return -1; | |
1425 | if (pc < obj_section_endaddr (section)) | |
1426 | return 0; | |
1427 | return 1; | |
1428 | } | |
1429 | ||
714835d5 | 1430 | /* Returns a section whose range includes PC or NULL if none found. */ |
c906108c SS |
1431 | |
1432 | struct obj_section * | |
714835d5 | 1433 | find_pc_section (CORE_ADDR pc) |
c906108c | 1434 | { |
6c95b8df | 1435 | struct objfile_pspace_info *pspace_info; |
a845f5cb | 1436 | struct obj_section *s, **sp; |
c5aa993b | 1437 | |
714835d5 UW |
1438 | /* Check for mapped overlay section first. */ |
1439 | s = find_pc_mapped_section (pc); | |
1440 | if (s) | |
1441 | return s; | |
c906108c | 1442 | |
6c95b8df | 1443 | pspace_info = get_objfile_pspace_data (current_program_space); |
607ece04 GB |
1444 | if (pspace_info->section_map_dirty |
1445 | || (pspace_info->new_objfiles_available | |
1446 | && !pspace_info->inhibit_updates)) | |
a845f5cb | 1447 | { |
6c95b8df PA |
1448 | update_section_map (current_program_space, |
1449 | &pspace_info->sections, | |
1450 | &pspace_info->num_sections); | |
c906108c | 1451 | |
6c95b8df PA |
1452 | /* Don't need updates to section map until objfiles are added, |
1453 | removed or relocated. */ | |
607ece04 GB |
1454 | pspace_info->new_objfiles_available = 0; |
1455 | pspace_info->section_map_dirty = 0; | |
a845f5cb PP |
1456 | } |
1457 | ||
65a97ab3 PP |
1458 | /* The C standard (ISO/IEC 9899:TC2) requires the BASE argument to |
1459 | bsearch be non-NULL. */ | |
1460 | if (pspace_info->sections == NULL) | |
1461 | { | |
1462 | gdb_assert (pspace_info->num_sections == 0); | |
1463 | return NULL; | |
1464 | } | |
1465 | ||
6c95b8df PA |
1466 | sp = (struct obj_section **) bsearch (&pc, |
1467 | pspace_info->sections, | |
1468 | pspace_info->num_sections, | |
1469 | sizeof (*pspace_info->sections), | |
1470 | bsearch_cmp); | |
a845f5cb PP |
1471 | if (sp != NULL) |
1472 | return *sp; | |
714835d5 | 1473 | return NULL; |
c906108c | 1474 | } |
c5aa993b | 1475 | |
c906108c | 1476 | |
3e5d3a5a | 1477 | /* Return non-zero if PC is in a section called NAME. */ |
c906108c SS |
1478 | |
1479 | int | |
3e5d3a5a | 1480 | pc_in_section (CORE_ADDR pc, char *name) |
c906108c SS |
1481 | { |
1482 | struct obj_section *s; | |
1483 | int retval = 0; | |
c5aa993b JM |
1484 | |
1485 | s = find_pc_section (pc); | |
1486 | ||
c906108c SS |
1487 | retval = (s != NULL |
1488 | && s->the_bfd_section->name != NULL | |
3e5d3a5a | 1489 | && strcmp (s->the_bfd_section->name, name) == 0); |
c5aa993b | 1490 | return (retval); |
c906108c | 1491 | } |
0d0e1a63 MK |
1492 | \f |
1493 | ||
607ece04 | 1494 | /* Set section_map_dirty so section map will be rebuilt next time it |
bb272892 | 1495 | is used. Called by reread_symbols. */ |
a845f5cb PP |
1496 | |
1497 | void | |
bb272892 | 1498 | objfiles_changed (void) |
a845f5cb | 1499 | { |
6c95b8df | 1500 | /* Rebuild section map next time we need it. */ |
607ece04 GB |
1501 | get_objfile_pspace_data (current_program_space)->section_map_dirty = 1; |
1502 | } | |
1503 | ||
1504 | /* See comments in objfiles.h. */ | |
1505 | ||
1506 | void | |
1507 | inhibit_section_map_updates (struct program_space *pspace) | |
1508 | { | |
1509 | get_objfile_pspace_data (pspace)->inhibit_updates = 1; | |
1510 | } | |
1511 | ||
1512 | /* See comments in objfiles.h. */ | |
1513 | ||
1514 | void | |
1515 | resume_section_map_updates (struct program_space *pspace) | |
1516 | { | |
1517 | get_objfile_pspace_data (pspace)->inhibit_updates = 0; | |
1518 | } | |
1519 | ||
1520 | /* See comments in objfiles.h. */ | |
1521 | ||
1522 | void | |
1523 | resume_section_map_updates_cleanup (void *arg) | |
1524 | { | |
1525 | resume_section_map_updates (arg); | |
a845f5cb | 1526 | } |
e3c69974 | 1527 | |
63644780 NB |
1528 | /* Return 1 if ADDR maps into one of the sections of OBJFILE and 0 |
1529 | otherwise. */ | |
1530 | ||
1531 | int | |
1532 | is_addr_in_objfile (CORE_ADDR addr, const struct objfile *objfile) | |
1533 | { | |
1534 | struct obj_section *osect; | |
1535 | ||
1536 | if (objfile == NULL) | |
1537 | return 0; | |
1538 | ||
1539 | ALL_OBJFILE_OSECTIONS (objfile, osect) | |
1540 | { | |
1541 | if (section_is_overlay (osect) && !section_is_mapped (osect)) | |
1542 | continue; | |
1543 | ||
1544 | if (obj_section_addr (osect) <= addr | |
1545 | && addr < obj_section_endaddr (osect)) | |
1546 | return 1; | |
1547 | } | |
1548 | return 0; | |
1549 | } | |
1550 | ||
08351840 | 1551 | int |
d03de421 PA |
1552 | shared_objfile_contains_address_p (struct program_space *pspace, |
1553 | CORE_ADDR address) | |
08351840 PA |
1554 | { |
1555 | struct objfile *objfile; | |
1556 | ||
1557 | ALL_PSPACE_OBJFILES (pspace, objfile) | |
1558 | { | |
d03de421 | 1559 | if ((objfile->flags & OBJF_SHARED) != 0 |
08351840 PA |
1560 | && is_addr_in_objfile (address, objfile)) |
1561 | return 1; | |
1562 | } | |
1563 | ||
1564 | return 0; | |
1565 | } | |
1566 | ||
19630284 JB |
1567 | /* The default implementation for the "iterate_over_objfiles_in_search_order" |
1568 | gdbarch method. It is equivalent to use the ALL_OBJFILES macro, | |
1569 | searching the objfiles in the order they are stored internally, | |
1570 | ignoring CURRENT_OBJFILE. | |
1571 | ||
1572 | On most platorms, it should be close enough to doing the best | |
1573 | we can without some knowledge specific to the architecture. */ | |
1574 | ||
1575 | void | |
1576 | default_iterate_over_objfiles_in_search_order | |
1577 | (struct gdbarch *gdbarch, | |
1578 | iterate_over_objfiles_in_search_order_cb_ftype *cb, | |
1579 | void *cb_data, struct objfile *current_objfile) | |
1580 | { | |
1581 | int stop = 0; | |
1582 | struct objfile *objfile; | |
1583 | ||
1584 | ALL_OBJFILES (objfile) | |
1585 | { | |
1586 | stop = cb (objfile, cb_data); | |
1587 | if (stop) | |
1588 | return; | |
1589 | } | |
1590 | } | |
1591 | ||
e02c96a7 | 1592 | /* See objfiles.h. */ |
4262abfb JK |
1593 | |
1594 | const char * | |
1595 | objfile_name (const struct objfile *objfile) | |
1596 | { | |
24ba069a JK |
1597 | if (objfile->obfd != NULL) |
1598 | return bfd_get_filename (objfile->obfd); | |
1599 | ||
4262abfb JK |
1600 | return objfile->original_name; |
1601 | } | |
1602 | ||
cc485e62 DE |
1603 | /* See objfiles.h. */ |
1604 | ||
e02c96a7 DE |
1605 | const char * |
1606 | objfile_filename (const struct objfile *objfile) | |
1607 | { | |
1608 | if (objfile->obfd != NULL) | |
1609 | return bfd_get_filename (objfile->obfd); | |
1610 | ||
1611 | return NULL; | |
1612 | } | |
1613 | ||
1614 | /* See objfiles.h. */ | |
1615 | ||
cc485e62 DE |
1616 | const char * |
1617 | objfile_debug_name (const struct objfile *objfile) | |
1618 | { | |
1619 | return lbasename (objfile->original_name); | |
1620 | } | |
1621 | ||
015d2e7e DE |
1622 | /* See objfiles.h. */ |
1623 | ||
1624 | const char * | |
1625 | objfile_flavour_name (struct objfile *objfile) | |
1626 | { | |
1627 | if (objfile->obfd != NULL) | |
1628 | return bfd_flavour_name (bfd_get_flavour (objfile->obfd)); | |
1629 | return NULL; | |
1630 | } | |
1631 | ||
6c95b8df PA |
1632 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
1633 | extern initialize_file_ftype _initialize_objfiles; | |
1634 | ||
1635 | void | |
1636 | _initialize_objfiles (void) | |
1637 | { | |
1638 | objfiles_pspace_data | |
8e260fc0 TT |
1639 | = register_program_space_data_with_cleanup (NULL, |
1640 | objfiles_pspace_data_cleanup); | |
706e3705 TT |
1641 | |
1642 | objfiles_bfd_data = register_bfd_data_with_cleanup (NULL, | |
1643 | objfile_bfd_data_free); | |
6c95b8df | 1644 | } |