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c906108c | 1 | /* Symbol table lookup for the GNU debugger, GDB. |
8926118c | 2 | |
4a94e368 | 3 | Copyright (C) 1986-2022 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
19 | |
20 | #include "defs.h" | |
21 | #include "symtab.h" | |
22 | #include "gdbtypes.h" | |
23 | #include "gdbcore.h" | |
24 | #include "frame.h" | |
25 | #include "target.h" | |
26 | #include "value.h" | |
27 | #include "symfile.h" | |
28 | #include "objfiles.h" | |
29 | #include "gdbcmd.h" | |
d322d6d6 | 30 | #include "gdbsupport/gdb_regex.h" |
c906108c SS |
31 | #include "expression.h" |
32 | #include "language.h" | |
33 | #include "demangle.h" | |
34 | #include "inferior.h" | |
0378c332 | 35 | #include "source.h" |
a7fdf62f | 36 | #include "filenames.h" /* for FILENAME_CMP */ |
1bae87b9 | 37 | #include "objc-lang.h" |
6aecb9c2 | 38 | #include "d-lang.h" |
1f8173e6 | 39 | #include "ada-lang.h" |
a766d390 | 40 | #include "go-lang.h" |
cd6c7346 | 41 | #include "p-lang.h" |
ff013f42 | 42 | #include "addrmap.h" |
529480d0 | 43 | #include "cli/cli-utils.h" |
1ed9f74e | 44 | #include "cli/cli-style.h" |
50a5f187 | 45 | #include "cli/cli-cmds.h" |
cce0e923 | 46 | #include "fnmatch.h" |
2de7ced7 | 47 | #include "hashtab.h" |
12615cba | 48 | #include "typeprint.h" |
2de7ced7 | 49 | |
bf31fd38 | 50 | #include "gdbsupport/gdb_obstack.h" |
fe898f56 | 51 | #include "block.h" |
de4f826b | 52 | #include "dictionary.h" |
c906108c SS |
53 | |
54 | #include <sys/types.h> | |
55 | #include <fcntl.h> | |
53ce3c39 | 56 | #include <sys/stat.h> |
c906108c | 57 | #include <ctype.h> |
015a42b4 | 58 | #include "cp-abi.h" |
71c25dea | 59 | #include "cp-support.h" |
76727919 | 60 | #include "observable.h" |
3a40aaa0 | 61 | #include "solist.h" |
9a044a89 TT |
62 | #include "macrotab.h" |
63 | #include "macroscope.h" | |
c906108c | 64 | |
270140bd | 65 | #include "parser-defs.h" |
ef0b411a | 66 | #include "completer.h" |
5ed8105e | 67 | #include "progspace-and-thread.h" |
268a13a5 | 68 | #include "gdbsupport/gdb_optional.h" |
bbf2f4df | 69 | #include "filename-seen-cache.h" |
46a62268 | 70 | #include "arch-utils.h" |
b9c04fb2 | 71 | #include <algorithm> |
7bb43059 | 72 | #include "gdbsupport/gdb_string_view.h" |
268a13a5 | 73 | #include "gdbsupport/pathstuff.h" |
1a6ff1a9 | 74 | #include "gdbsupport/common-utils.h" |
ccefe4c4 | 75 | |
ff6c39cf | 76 | /* Forward declarations for local functions. */ |
c906108c | 77 | |
0b39b52e | 78 | static void rbreak_command (const char *, int); |
c906108c | 79 | |
f8eba3c6 | 80 | static int find_line_common (struct linetable *, int, int *, int); |
c906108c | 81 | |
d12307c1 PMR |
82 | static struct block_symbol |
83 | lookup_symbol_aux (const char *name, | |
de63c46b | 84 | symbol_name_match_type match_type, |
d12307c1 PMR |
85 | const struct block *block, |
86 | const domain_enum domain, | |
87 | enum language language, | |
88 | struct field_of_this_result *); | |
fba7f19c | 89 | |
e4051eeb | 90 | static |
d12307c1 | 91 | struct block_symbol lookup_local_symbol (const char *name, |
de63c46b | 92 | symbol_name_match_type match_type, |
d12307c1 PMR |
93 | const struct block *block, |
94 | const domain_enum domain, | |
95 | enum language language); | |
8155455b | 96 | |
d12307c1 | 97 | static struct block_symbol |
c32e6a04 CB |
98 | lookup_symbol_in_objfile (struct objfile *objfile, |
99 | enum block_enum block_index, | |
fe2a438d | 100 | const char *name, const domain_enum domain); |
c906108c | 101 | |
32ac0d11 TT |
102 | /* Type of the data stored on the program space. */ |
103 | ||
104 | struct main_info | |
105 | { | |
a32ad8c5 TT |
106 | main_info () = default; |
107 | ||
108 | ~main_info () | |
109 | { | |
110 | xfree (name_of_main); | |
111 | } | |
112 | ||
32ac0d11 TT |
113 | /* Name of "main". */ |
114 | ||
a32ad8c5 | 115 | char *name_of_main = nullptr; |
32ac0d11 TT |
116 | |
117 | /* Language of "main". */ | |
118 | ||
a32ad8c5 | 119 | enum language language_of_main = language_unknown; |
32ac0d11 TT |
120 | }; |
121 | ||
a32ad8c5 TT |
122 | /* Program space key for finding name and language of "main". */ |
123 | ||
124 | static const program_space_key<main_info> main_progspace_key; | |
125 | ||
f57d2163 DE |
126 | /* The default symbol cache size. |
127 | There is no extra cpu cost for large N (except when flushing the cache, | |
128 | which is rare). The value here is just a first attempt. A better default | |
129 | value may be higher or lower. A prime number can make up for a bad hash | |
130 | computation, so that's why the number is what it is. */ | |
131 | #define DEFAULT_SYMBOL_CACHE_SIZE 1021 | |
132 | ||
133 | /* The maximum symbol cache size. | |
134 | There's no method to the decision of what value to use here, other than | |
135 | there's no point in allowing a user typo to make gdb consume all memory. */ | |
136 | #define MAX_SYMBOL_CACHE_SIZE (1024*1024) | |
137 | ||
138 | /* symbol_cache_lookup returns this if a previous lookup failed to find the | |
139 | symbol in any objfile. */ | |
d12307c1 PMR |
140 | #define SYMBOL_LOOKUP_FAILED \ |
141 | ((struct block_symbol) {(struct symbol *) 1, NULL}) | |
142 | #define SYMBOL_LOOKUP_FAILED_P(SIB) (SIB.symbol == (struct symbol *) 1) | |
f57d2163 DE |
143 | |
144 | /* Recording lookups that don't find the symbol is just as important, if not | |
145 | more so, than recording found symbols. */ | |
146 | ||
147 | enum symbol_cache_slot_state | |
148 | { | |
149 | SYMBOL_SLOT_UNUSED, | |
150 | SYMBOL_SLOT_NOT_FOUND, | |
151 | SYMBOL_SLOT_FOUND | |
152 | }; | |
153 | ||
52059ffd TT |
154 | struct symbol_cache_slot |
155 | { | |
156 | enum symbol_cache_slot_state state; | |
157 | ||
158 | /* The objfile that was current when the symbol was looked up. | |
159 | This is only needed for global blocks, but for simplicity's sake | |
160 | we allocate the space for both. If data shows the extra space used | |
161 | for static blocks is a problem, we can split things up then. | |
162 | ||
163 | Global blocks need cache lookup to include the objfile context because | |
164 | we need to account for gdbarch_iterate_over_objfiles_in_search_order | |
165 | which can traverse objfiles in, effectively, any order, depending on | |
166 | the current objfile, thus affecting which symbol is found. Normally, | |
167 | only the current objfile is searched first, and then the rest are | |
168 | searched in recorded order; but putting cache lookup inside | |
169 | gdbarch_iterate_over_objfiles_in_search_order would be awkward. | |
170 | Instead we just make the current objfile part of the context of | |
171 | cache lookup. This means we can record the same symbol multiple times, | |
172 | each with a different "current objfile" that was in effect when the | |
173 | lookup was saved in the cache, but cache space is pretty cheap. */ | |
174 | const struct objfile *objfile_context; | |
175 | ||
176 | union | |
177 | { | |
d12307c1 | 178 | struct block_symbol found; |
52059ffd TT |
179 | struct |
180 | { | |
181 | char *name; | |
182 | domain_enum domain; | |
183 | } not_found; | |
184 | } value; | |
185 | }; | |
186 | ||
82f910ea PW |
187 | /* Clear out SLOT. */ |
188 | ||
189 | static void | |
190 | symbol_cache_clear_slot (struct symbol_cache_slot *slot) | |
191 | { | |
192 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
193 | xfree (slot->value.not_found.name); | |
194 | slot->state = SYMBOL_SLOT_UNUSED; | |
195 | } | |
196 | ||
f57d2163 DE |
197 | /* Symbols don't specify global vs static block. |
198 | So keep them in separate caches. */ | |
199 | ||
200 | struct block_symbol_cache | |
201 | { | |
202 | unsigned int hits; | |
203 | unsigned int misses; | |
204 | unsigned int collisions; | |
205 | ||
206 | /* SYMBOLS is a variable length array of this size. | |
207 | One can imagine that in general one cache (global/static) should be a | |
208 | fraction of the size of the other, but there's no data at the moment | |
209 | on which to decide. */ | |
210 | unsigned int size; | |
211 | ||
52059ffd | 212 | struct symbol_cache_slot symbols[1]; |
f57d2163 DE |
213 | }; |
214 | ||
82f910ea PW |
215 | /* Clear all slots of BSC and free BSC. */ |
216 | ||
217 | static void | |
218 | destroy_block_symbol_cache (struct block_symbol_cache *bsc) | |
219 | { | |
220 | if (bsc != nullptr) | |
221 | { | |
222 | for (unsigned int i = 0; i < bsc->size; i++) | |
223 | symbol_cache_clear_slot (&bsc->symbols[i]); | |
224 | xfree (bsc); | |
225 | } | |
226 | } | |
227 | ||
f57d2163 DE |
228 | /* The symbol cache. |
229 | ||
230 | Searching for symbols in the static and global blocks over multiple objfiles | |
231 | again and again can be slow, as can searching very big objfiles. This is a | |
232 | simple cache to improve symbol lookup performance, which is critical to | |
233 | overall gdb performance. | |
234 | ||
235 | Symbols are hashed on the name, its domain, and block. | |
236 | They are also hashed on their objfile for objfile-specific lookups. */ | |
237 | ||
238 | struct symbol_cache | |
239 | { | |
3017b94d TT |
240 | symbol_cache () = default; |
241 | ||
242 | ~symbol_cache () | |
243 | { | |
82f910ea PW |
244 | destroy_block_symbol_cache (global_symbols); |
245 | destroy_block_symbol_cache (static_symbols); | |
3017b94d TT |
246 | } |
247 | ||
248 | struct block_symbol_cache *global_symbols = nullptr; | |
249 | struct block_symbol_cache *static_symbols = nullptr; | |
f57d2163 DE |
250 | }; |
251 | ||
3017b94d TT |
252 | /* Program space key for finding its symbol cache. */ |
253 | ||
254 | static const program_space_key<symbol_cache> symbol_cache_key; | |
255 | ||
45cfd468 | 256 | /* When non-zero, print debugging messages related to symtab creation. */ |
db0fec5c | 257 | unsigned int symtab_create_debug = 0; |
45cfd468 | 258 | |
cc485e62 DE |
259 | /* When non-zero, print debugging messages related to symbol lookup. */ |
260 | unsigned int symbol_lookup_debug = 0; | |
261 | ||
f57d2163 DE |
262 | /* The size of the cache is staged here. */ |
263 | static unsigned int new_symbol_cache_size = DEFAULT_SYMBOL_CACHE_SIZE; | |
264 | ||
265 | /* The current value of the symbol cache size. | |
266 | This is saved so that if the user enters a value too big we can restore | |
267 | the original value from here. */ | |
268 | static unsigned int symbol_cache_size = DEFAULT_SYMBOL_CACHE_SIZE; | |
269 | ||
491144b5 | 270 | /* True if a file may be known by two different basenames. |
c011a4f4 DE |
271 | This is the uncommon case, and significantly slows down gdb. |
272 | Default set to "off" to not slow down the common case. */ | |
491144b5 | 273 | bool basenames_may_differ = false; |
c011a4f4 | 274 | |
717d2f5a JB |
275 | /* Allow the user to configure the debugger behavior with respect |
276 | to multiple-choice menus when more than one symbol matches during | |
277 | a symbol lookup. */ | |
278 | ||
7fc830e2 MK |
279 | const char multiple_symbols_ask[] = "ask"; |
280 | const char multiple_symbols_all[] = "all"; | |
281 | const char multiple_symbols_cancel[] = "cancel"; | |
40478521 | 282 | static const char *const multiple_symbols_modes[] = |
717d2f5a JB |
283 | { |
284 | multiple_symbols_ask, | |
285 | multiple_symbols_all, | |
286 | multiple_symbols_cancel, | |
287 | NULL | |
288 | }; | |
289 | static const char *multiple_symbols_mode = multiple_symbols_all; | |
290 | ||
291 | /* Read-only accessor to AUTO_SELECT_MODE. */ | |
292 | ||
293 | const char * | |
294 | multiple_symbols_select_mode (void) | |
295 | { | |
296 | return multiple_symbols_mode; | |
297 | } | |
298 | ||
20c681d1 DE |
299 | /* Return the name of a domain_enum. */ |
300 | ||
301 | const char * | |
302 | domain_name (domain_enum e) | |
303 | { | |
304 | switch (e) | |
305 | { | |
306 | case UNDEF_DOMAIN: return "UNDEF_DOMAIN"; | |
307 | case VAR_DOMAIN: return "VAR_DOMAIN"; | |
308 | case STRUCT_DOMAIN: return "STRUCT_DOMAIN"; | |
540feddf | 309 | case MODULE_DOMAIN: return "MODULE_DOMAIN"; |
20c681d1 DE |
310 | case LABEL_DOMAIN: return "LABEL_DOMAIN"; |
311 | case COMMON_BLOCK_DOMAIN: return "COMMON_BLOCK_DOMAIN"; | |
312 | default: gdb_assert_not_reached ("bad domain_enum"); | |
313 | } | |
314 | } | |
315 | ||
316 | /* Return the name of a search_domain . */ | |
317 | ||
318 | const char * | |
319 | search_domain_name (enum search_domain e) | |
320 | { | |
321 | switch (e) | |
322 | { | |
323 | case VARIABLES_DOMAIN: return "VARIABLES_DOMAIN"; | |
324 | case FUNCTIONS_DOMAIN: return "FUNCTIONS_DOMAIN"; | |
325 | case TYPES_DOMAIN: return "TYPES_DOMAIN"; | |
59c35742 | 326 | case MODULES_DOMAIN: return "MODULES_DOMAIN"; |
20c681d1 DE |
327 | case ALL_DOMAIN: return "ALL_DOMAIN"; |
328 | default: gdb_assert_not_reached ("bad search_domain"); | |
329 | } | |
330 | } | |
331 | ||
43f3e411 | 332 | /* See symtab.h. */ |
db0fec5c | 333 | |
cdc22ffb SM |
334 | program_space * |
335 | symtab::pspace () const | |
336 | { | |
337 | return this->objfile ()->pspace; | |
338 | } | |
339 | ||
340 | /* See symtab.h. */ | |
341 | ||
b625c770 SM |
342 | call_site * |
343 | compunit_symtab::find_call_site (CORE_ADDR pc) const | |
344 | { | |
345 | if (m_call_site_htab == nullptr) | |
346 | return nullptr; | |
347 | ||
b0b8879e | 348 | CORE_ADDR delta |
c1e35bc9 | 349 | = this->objfile ()->section_offsets[this->block_line_section ()]; |
b0b8879e SM |
350 | CORE_ADDR unrelocated_pc = pc - delta; |
351 | ||
352 | struct call_site call_site_local (unrelocated_pc, nullptr, nullptr); | |
0dd8295d TV |
353 | void **slot |
354 | = htab_find_slot (m_call_site_htab, &call_site_local, NO_INSERT); | |
b625c770 SM |
355 | if (slot == nullptr) |
356 | return nullptr; | |
357 | ||
358 | return (call_site *) *slot; | |
359 | } | |
360 | ||
361 | /* See symtab.h. */ | |
362 | ||
363 | void | |
364 | compunit_symtab::set_call_site_htab (htab_t call_site_htab) | |
365 | { | |
366 | gdb_assert (m_call_site_htab == nullptr); | |
367 | m_call_site_htab = call_site_htab; | |
368 | } | |
369 | ||
370 | /* See symtab.h. */ | |
371 | ||
36664835 SM |
372 | void |
373 | compunit_symtab::set_primary_filetab (symtab *primary_filetab) | |
374 | { | |
375 | symtab *prev_filetab = nullptr; | |
376 | ||
377 | /* Move PRIMARY_FILETAB to the head of the filetab list. */ | |
102cc235 | 378 | for (symtab *filetab : this->filetabs ()) |
36664835 SM |
379 | { |
380 | if (filetab == primary_filetab) | |
381 | { | |
382 | if (prev_filetab != nullptr) | |
383 | { | |
384 | prev_filetab->next = primary_filetab->next; | |
102cc235 SM |
385 | primary_filetab->next = m_filetabs; |
386 | m_filetabs = primary_filetab; | |
36664835 SM |
387 | } |
388 | ||
389 | break; | |
390 | } | |
391 | ||
392 | prev_filetab = filetab; | |
393 | } | |
394 | ||
102cc235 | 395 | gdb_assert (primary_filetab == m_filetabs); |
36664835 SM |
396 | } |
397 | ||
398 | /* See symtab.h. */ | |
399 | ||
43f3e411 | 400 | struct symtab * |
0b17a4f7 | 401 | compunit_symtab::primary_filetab () const |
db0fec5c | 402 | { |
102cc235 | 403 | gdb_assert (m_filetabs != nullptr); |
db0fec5c | 404 | |
43f3e411 | 405 | /* The primary file symtab is the first one in the list. */ |
102cc235 | 406 | return m_filetabs; |
43f3e411 DE |
407 | } |
408 | ||
409 | /* See symtab.h. */ | |
410 | ||
411 | enum language | |
412 | compunit_language (const struct compunit_symtab *cust) | |
413 | { | |
0b17a4f7 | 414 | struct symtab *symtab = cust->primary_filetab (); |
43f3e411 DE |
415 | |
416 | /* The language of the compunit symtab is the language of its primary | |
417 | source file. */ | |
1ee2e9f9 | 418 | return symtab->language (); |
db0fec5c DE |
419 | } |
420 | ||
1ed9f74e PW |
421 | /* See symtab.h. */ |
422 | ||
423 | bool | |
424 | minimal_symbol::data_p () const | |
425 | { | |
426 | return type == mst_data | |
427 | || type == mst_bss | |
428 | || type == mst_abs | |
429 | || type == mst_file_data | |
430 | || type == mst_file_bss; | |
431 | } | |
432 | ||
433 | /* See symtab.h. */ | |
434 | ||
435 | bool | |
436 | minimal_symbol::text_p () const | |
437 | { | |
438 | return type == mst_text | |
439 | || type == mst_text_gnu_ifunc | |
440 | || type == mst_data_gnu_ifunc | |
441 | || type == mst_slot_got_plt | |
442 | || type == mst_solib_trampoline | |
443 | || type == mst_file_text; | |
444 | } | |
445 | ||
4aac40c8 TT |
446 | /* See whether FILENAME matches SEARCH_NAME using the rule that we |
447 | advertise to the user. (The manual's description of linespecs | |
af529f8f JK |
448 | describes what we advertise). Returns true if they match, false |
449 | otherwise. */ | |
4aac40c8 | 450 | |
ececd218 | 451 | bool |
b57a636e | 452 | compare_filenames_for_search (const char *filename, const char *search_name) |
4aac40c8 TT |
453 | { |
454 | int len = strlen (filename); | |
b57a636e | 455 | size_t search_len = strlen (search_name); |
4aac40c8 TT |
456 | |
457 | if (len < search_len) | |
ececd218 | 458 | return false; |
4aac40c8 TT |
459 | |
460 | /* The tail of FILENAME must match. */ | |
461 | if (FILENAME_CMP (filename + len - search_len, search_name) != 0) | |
ececd218 | 462 | return false; |
4aac40c8 TT |
463 | |
464 | /* Either the names must completely match, or the character | |
465 | preceding the trailing SEARCH_NAME segment of FILENAME must be a | |
d84fca2c JK |
466 | directory separator. |
467 | ||
af529f8f JK |
468 | The check !IS_ABSOLUTE_PATH ensures SEARCH_NAME "/dir/file.c" |
469 | cannot match FILENAME "/path//dir/file.c" - as user has requested | |
470 | absolute path. The sama applies for "c:\file.c" possibly | |
471 | incorrectly hypothetically matching "d:\dir\c:\file.c". | |
472 | ||
d84fca2c JK |
473 | The HAS_DRIVE_SPEC purpose is to make FILENAME "c:file.c" |
474 | compatible with SEARCH_NAME "file.c". In such case a compiler had | |
475 | to put the "c:file.c" name into debug info. Such compatibility | |
476 | works only on GDB built for DOS host. */ | |
4aac40c8 | 477 | return (len == search_len |
af529f8f JK |
478 | || (!IS_ABSOLUTE_PATH (search_name) |
479 | && IS_DIR_SEPARATOR (filename[len - search_len - 1])) | |
4aac40c8 TT |
480 | || (HAS_DRIVE_SPEC (filename) |
481 | && STRIP_DRIVE_SPEC (filename) == &filename[len - search_len])); | |
482 | } | |
483 | ||
cce0e923 DE |
484 | /* Same as compare_filenames_for_search, but for glob-style patterns. |
485 | Heads up on the order of the arguments. They match the order of | |
486 | compare_filenames_for_search, but it's the opposite of the order of | |
487 | arguments to gdb_filename_fnmatch. */ | |
488 | ||
ececd218 | 489 | bool |
cce0e923 DE |
490 | compare_glob_filenames_for_search (const char *filename, |
491 | const char *search_name) | |
492 | { | |
493 | /* We rely on the property of glob-style patterns with FNM_FILE_NAME that | |
494 | all /s have to be explicitly specified. */ | |
495 | int file_path_elements = count_path_elements (filename); | |
496 | int search_path_elements = count_path_elements (search_name); | |
497 | ||
498 | if (search_path_elements > file_path_elements) | |
ececd218 | 499 | return false; |
cce0e923 DE |
500 | |
501 | if (IS_ABSOLUTE_PATH (search_name)) | |
502 | { | |
503 | return (search_path_elements == file_path_elements | |
504 | && gdb_filename_fnmatch (search_name, filename, | |
505 | FNM_FILE_NAME | FNM_NOESCAPE) == 0); | |
506 | } | |
507 | ||
508 | { | |
509 | const char *file_to_compare | |
510 | = strip_leading_path_elements (filename, | |
511 | file_path_elements - search_path_elements); | |
512 | ||
513 | return gdb_filename_fnmatch (search_name, file_to_compare, | |
514 | FNM_FILE_NAME | FNM_NOESCAPE) == 0; | |
515 | } | |
516 | } | |
517 | ||
f8eba3c6 TT |
518 | /* Check for a symtab of a specific name by searching some symtabs. |
519 | This is a helper function for callbacks of iterate_over_symtabs. | |
c906108c | 520 | |
b2d23133 DE |
521 | If NAME is not absolute, then REAL_PATH is NULL |
522 | If NAME is absolute, then REAL_PATH is the gdb_realpath form of NAME. | |
523 | ||
14bc53a8 PA |
524 | The return value, NAME, REAL_PATH and CALLBACK are identical to the |
525 | `map_symtabs_matching_filename' method of quick_symbol_functions. | |
f8eba3c6 | 526 | |
43f3e411 DE |
527 | FIRST and AFTER_LAST indicate the range of compunit symtabs to search. |
528 | Each symtab within the specified compunit symtab is also searched. | |
529 | AFTER_LAST is one past the last compunit symtab to search; NULL means to | |
f8eba3c6 TT |
530 | search until the end of the list. */ |
531 | ||
14bc53a8 | 532 | bool |
f8eba3c6 | 533 | iterate_over_some_symtabs (const char *name, |
f8eba3c6 | 534 | const char *real_path, |
43f3e411 | 535 | struct compunit_symtab *first, |
14bc53a8 PA |
536 | struct compunit_symtab *after_last, |
537 | gdb::function_view<bool (symtab *)> callback) | |
c906108c | 538 | { |
43f3e411 | 539 | struct compunit_symtab *cust; |
c011a4f4 | 540 | const char* base_name = lbasename (name); |
1f84b619 | 541 | |
43f3e411 | 542 | for (cust = first; cust != NULL && cust != after_last; cust = cust->next) |
f079a2e5 | 543 | { |
102cc235 | 544 | for (symtab *s : cust->filetabs ()) |
a94e8645 | 545 | { |
43f3e411 DE |
546 | if (compare_filenames_for_search (s->filename, name)) |
547 | { | |
14bc53a8 PA |
548 | if (callback (s)) |
549 | return true; | |
43f3e411 DE |
550 | continue; |
551 | } | |
a94e8645 | 552 | |
43f3e411 DE |
553 | /* Before we invoke realpath, which can get expensive when many |
554 | files are involved, do a quick comparison of the basenames. */ | |
555 | if (! basenames_may_differ | |
556 | && FILENAME_CMP (base_name, lbasename (s->filename)) != 0) | |
557 | continue; | |
a94e8645 | 558 | |
43f3e411 | 559 | if (compare_filenames_for_search (symtab_to_fullname (s), name)) |
a94e8645 | 560 | { |
14bc53a8 PA |
561 | if (callback (s)) |
562 | return true; | |
a94e8645 DE |
563 | continue; |
564 | } | |
43f3e411 DE |
565 | |
566 | /* If the user gave us an absolute path, try to find the file in | |
567 | this symtab and use its absolute path. */ | |
568 | if (real_path != NULL) | |
569 | { | |
570 | const char *fullname = symtab_to_fullname (s); | |
571 | ||
572 | gdb_assert (IS_ABSOLUTE_PATH (real_path)); | |
573 | gdb_assert (IS_ABSOLUTE_PATH (name)); | |
7e785608 TV |
574 | gdb::unique_xmalloc_ptr<char> fullname_real_path |
575 | = gdb_realpath (fullname); | |
576 | fullname = fullname_real_path.get (); | |
43f3e411 DE |
577 | if (FILENAME_CMP (real_path, fullname) == 0) |
578 | { | |
14bc53a8 PA |
579 | if (callback (s)) |
580 | return true; | |
43f3e411 DE |
581 | continue; |
582 | } | |
583 | } | |
a94e8645 | 584 | } |
f8eba3c6 | 585 | } |
58d370e0 | 586 | |
14bc53a8 | 587 | return false; |
f8eba3c6 TT |
588 | } |
589 | ||
590 | /* Check for a symtab of a specific name; first in symtabs, then in | |
591 | psymtabs. *If* there is no '/' in the name, a match after a '/' | |
592 | in the symtab filename will also work. | |
593 | ||
14bc53a8 PA |
594 | Calls CALLBACK with each symtab that is found. If CALLBACK returns |
595 | true, the search stops. */ | |
f8eba3c6 TT |
596 | |
597 | void | |
598 | iterate_over_symtabs (const char *name, | |
14bc53a8 | 599 | gdb::function_view<bool (symtab *)> callback) |
f8eba3c6 | 600 | { |
14bc53a8 | 601 | gdb::unique_xmalloc_ptr<char> real_path; |
f8eba3c6 TT |
602 | |
603 | /* Here we are interested in canonicalizing an absolute path, not | |
604 | absolutizing a relative path. */ | |
605 | if (IS_ABSOLUTE_PATH (name)) | |
606 | { | |
14278e1f | 607 | real_path = gdb_realpath (name); |
14bc53a8 | 608 | gdb_assert (IS_ABSOLUTE_PATH (real_path.get ())); |
f8eba3c6 TT |
609 | } |
610 | ||
2030c079 | 611 | for (objfile *objfile : current_program_space->objfiles ()) |
14bc53a8 PA |
612 | { |
613 | if (iterate_over_some_symtabs (name, real_path.get (), | |
614 | objfile->compunit_symtabs, NULL, | |
615 | callback)) | |
f8eba3c6 | 616 | return; |
14bc53a8 | 617 | } |
f8eba3c6 | 618 | |
c906108c SS |
619 | /* Same search rules as above apply here, but now we look thru the |
620 | psymtabs. */ | |
621 | ||
2030c079 | 622 | for (objfile *objfile : current_program_space->objfiles ()) |
14bc53a8 | 623 | { |
4d080b46 TT |
624 | if (objfile->map_symtabs_matching_filename (name, real_path.get (), |
625 | callback)) | |
f8eba3c6 | 626 | return; |
14bc53a8 | 627 | } |
c906108c | 628 | } |
f8eba3c6 TT |
629 | |
630 | /* A wrapper for iterate_over_symtabs that returns the first matching | |
631 | symtab, or NULL. */ | |
632 | ||
633 | struct symtab * | |
634 | lookup_symtab (const char *name) | |
635 | { | |
636 | struct symtab *result = NULL; | |
637 | ||
14bc53a8 PA |
638 | iterate_over_symtabs (name, [&] (symtab *symtab) |
639 | { | |
640 | result = symtab; | |
641 | return true; | |
642 | }); | |
643 | ||
f8eba3c6 TT |
644 | return result; |
645 | } | |
646 | ||
c906108c SS |
647 | \f |
648 | /* Mangle a GDB method stub type. This actually reassembles the pieces of the | |
649 | full method name, which consist of the class name (from T), the unadorned | |
650 | method name from METHOD_ID, and the signature for the specific overload, | |
c378eb4e | 651 | specified by SIGNATURE_ID. Note that this function is g++ specific. */ |
c906108c SS |
652 | |
653 | char * | |
fba45db2 | 654 | gdb_mangle_name (struct type *type, int method_id, int signature_id) |
c906108c SS |
655 | { |
656 | int mangled_name_len; | |
657 | char *mangled_name; | |
658 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
659 | struct fn_field *method = &f[signature_id]; | |
0d5cff50 | 660 | const char *field_name = TYPE_FN_FIELDLIST_NAME (type, method_id); |
1d06ead6 | 661 | const char *physname = TYPE_FN_FIELD_PHYSNAME (f, signature_id); |
7d93a1e0 | 662 | const char *newname = type->name (); |
c906108c SS |
663 | |
664 | /* Does the form of physname indicate that it is the full mangled name | |
665 | of a constructor (not just the args)? */ | |
666 | int is_full_physname_constructor; | |
667 | ||
668 | int is_constructor; | |
015a42b4 | 669 | int is_destructor = is_destructor_name (physname); |
c906108c | 670 | /* Need a new type prefix. */ |
e6a959d6 PA |
671 | const char *const_prefix = method->is_const ? "C" : ""; |
672 | const char *volatile_prefix = method->is_volatile ? "V" : ""; | |
c906108c SS |
673 | char buf[20]; |
674 | int len = (newname == NULL ? 0 : strlen (newname)); | |
675 | ||
43630227 PS |
676 | /* Nothing to do if physname already contains a fully mangled v3 abi name |
677 | or an operator name. */ | |
678 | if ((physname[0] == '_' && physname[1] == 'Z') | |
679 | || is_operator_name (field_name)) | |
235d1e03 EZ |
680 | return xstrdup (physname); |
681 | ||
015a42b4 | 682 | is_full_physname_constructor = is_constructor_name (physname); |
c906108c | 683 | |
3e43a32a MS |
684 | is_constructor = is_full_physname_constructor |
685 | || (newname && strcmp (field_name, newname) == 0); | |
c906108c SS |
686 | |
687 | if (!is_destructor) | |
61012eef | 688 | is_destructor = (startswith (physname, "__dt")); |
c906108c SS |
689 | |
690 | if (is_destructor || is_full_physname_constructor) | |
691 | { | |
c5aa993b JM |
692 | mangled_name = (char *) xmalloc (strlen (physname) + 1); |
693 | strcpy (mangled_name, physname); | |
c906108c SS |
694 | return mangled_name; |
695 | } | |
696 | ||
697 | if (len == 0) | |
698 | { | |
8c042590 | 699 | xsnprintf (buf, sizeof (buf), "__%s%s", const_prefix, volatile_prefix); |
c906108c SS |
700 | } |
701 | else if (physname[0] == 't' || physname[0] == 'Q') | |
702 | { | |
703 | /* The physname for template and qualified methods already includes | |
dda83cd7 | 704 | the class name. */ |
8c042590 | 705 | xsnprintf (buf, sizeof (buf), "__%s%s", const_prefix, volatile_prefix); |
c906108c SS |
706 | newname = NULL; |
707 | len = 0; | |
708 | } | |
709 | else | |
710 | { | |
8c042590 PM |
711 | xsnprintf (buf, sizeof (buf), "__%s%s%d", const_prefix, |
712 | volatile_prefix, len); | |
c906108c SS |
713 | } |
714 | mangled_name_len = ((is_constructor ? 0 : strlen (field_name)) | |
235d1e03 | 715 | + strlen (buf) + len + strlen (physname) + 1); |
c906108c | 716 | |
433759f7 MS |
717 | mangled_name = (char *) xmalloc (mangled_name_len); |
718 | if (is_constructor) | |
719 | mangled_name[0] = '\0'; | |
720 | else | |
721 | strcpy (mangled_name, field_name); | |
722 | ||
c906108c SS |
723 | strcat (mangled_name, buf); |
724 | /* If the class doesn't have a name, i.e. newname NULL, then we just | |
725 | mangle it using 0 for the length of the class. Thus it gets mangled | |
c378eb4e | 726 | as something starting with `::' rather than `classname::'. */ |
c906108c SS |
727 | if (newname != NULL) |
728 | strcat (mangled_name, newname); | |
729 | ||
730 | strcat (mangled_name, physname); | |
731 | return (mangled_name); | |
732 | } | |
12af6855 | 733 | |
ff985671 | 734 | /* See symtab.h. */ |
eca864fe | 735 | |
b250c185 | 736 | void |
ff985671 TT |
737 | general_symbol_info::set_demangled_name (const char *name, |
738 | struct obstack *obstack) | |
b250c185 | 739 | { |
ff985671 | 740 | if (language () == language_ada) |
f85f34ed TT |
741 | { |
742 | if (name == NULL) | |
743 | { | |
ff985671 TT |
744 | ada_mangled = 0; |
745 | language_specific.obstack = obstack; | |
f85f34ed TT |
746 | } |
747 | else | |
748 | { | |
ff985671 TT |
749 | ada_mangled = 1; |
750 | language_specific.demangled_name = name; | |
f85f34ed TT |
751 | } |
752 | } | |
29df156d | 753 | else |
ff985671 | 754 | language_specific.demangled_name = name; |
b250c185 SW |
755 | } |
756 | ||
12af6855 | 757 | \f |
89aad1f9 | 758 | /* Initialize the language dependent portion of a symbol |
c378eb4e | 759 | depending upon the language for the symbol. */ |
eca864fe | 760 | |
89aad1f9 | 761 | void |
d3ecddab CB |
762 | general_symbol_info::set_language (enum language language, |
763 | struct obstack *obstack) | |
89aad1f9 | 764 | { |
d3ecddab | 765 | m_language = language; |
c1b5c1eb CB |
766 | if (language == language_cplus |
767 | || language == language_d | |
768 | || language == language_go | |
769 | || language == language_objc | |
770 | || language == language_fortran) | |
89aad1f9 | 771 | { |
ff985671 | 772 | set_demangled_name (NULL, obstack); |
f85f34ed | 773 | } |
c1b5c1eb | 774 | else if (language == language_ada) |
f85f34ed | 775 | { |
d3ecddab CB |
776 | gdb_assert (ada_mangled == 0); |
777 | language_specific.obstack = obstack; | |
89aad1f9 | 778 | } |
89aad1f9 EZ |
779 | else |
780 | { | |
d3ecddab | 781 | memset (&language_specific, 0, sizeof (language_specific)); |
89aad1f9 EZ |
782 | } |
783 | } | |
784 | ||
2de7ced7 DJ |
785 | /* Functions to initialize a symbol's mangled name. */ |
786 | ||
04a679b8 TT |
787 | /* Objects of this type are stored in the demangled name hash table. */ |
788 | struct demangled_name_entry | |
789 | { | |
3a494279 CB |
790 | demangled_name_entry (gdb::string_view mangled_name) |
791 | : mangled (mangled_name) {} | |
792 | ||
7bb43059 | 793 | gdb::string_view mangled; |
403772ef | 794 | enum language language; |
5396ae17 | 795 | gdb::unique_xmalloc_ptr<char> demangled; |
04a679b8 TT |
796 | }; |
797 | ||
798 | /* Hash function for the demangled name hash. */ | |
eca864fe | 799 | |
04a679b8 TT |
800 | static hashval_t |
801 | hash_demangled_name_entry (const void *data) | |
802 | { | |
19ba03f4 SM |
803 | const struct demangled_name_entry *e |
804 | = (const struct demangled_name_entry *) data; | |
433759f7 | 805 | |
1a6ff1a9 | 806 | return fast_hash (e->mangled.data (), e->mangled.length ()); |
04a679b8 TT |
807 | } |
808 | ||
809 | /* Equality function for the demangled name hash. */ | |
eca864fe | 810 | |
04a679b8 TT |
811 | static int |
812 | eq_demangled_name_entry (const void *a, const void *b) | |
813 | { | |
19ba03f4 SM |
814 | const struct demangled_name_entry *da |
815 | = (const struct demangled_name_entry *) a; | |
816 | const struct demangled_name_entry *db | |
817 | = (const struct demangled_name_entry *) b; | |
433759f7 | 818 | |
7bb43059 | 819 | return da->mangled == db->mangled; |
04a679b8 TT |
820 | } |
821 | ||
3a494279 CB |
822 | static void |
823 | free_demangled_name_entry (void *data) | |
824 | { | |
825 | struct demangled_name_entry *e | |
826 | = (struct demangled_name_entry *) data; | |
827 | ||
828 | e->~demangled_name_entry(); | |
829 | } | |
830 | ||
2de7ced7 DJ |
831 | /* Create the hash table used for demangled names. Each hash entry is |
832 | a pair of strings; one for the mangled name and one for the demangled | |
833 | name. The entry is hashed via just the mangled name. */ | |
834 | ||
835 | static void | |
0f14768a | 836 | create_demangled_names_hash (struct objfile_per_bfd_storage *per_bfd) |
2de7ced7 DJ |
837 | { |
838 | /* Choose 256 as the starting size of the hash table, somewhat arbitrarily. | |
9af17804 | 839 | The hash table code will round this up to the next prime number. |
2de7ced7 | 840 | Choosing a much larger table size wastes memory, and saves only about |
f8bab2d6 CB |
841 | 1% in symbol reading. However, if the minsym count is already |
842 | initialized (e.g. because symbol name setting was deferred to | |
843 | a background thread) we can initialize the hashtable with a count | |
844 | based on that, because we will almost certainly have at least that | |
845 | many entries. If we have a nonzero number but less than 256, | |
846 | we still stay with 256 to have some space for psymbols, etc. */ | |
847 | ||
848 | /* htab will expand the table when it is 3/4th full, so we account for that | |
849 | here. +2 to round up. */ | |
850 | int minsym_based_count = (per_bfd->minimal_symbol_count + 2) / 3 * 4; | |
851 | int count = std::max (per_bfd->minimal_symbol_count, minsym_based_count); | |
2de7ced7 | 852 | |
db92718b | 853 | per_bfd->demangled_names_hash.reset (htab_create_alloc |
f8bab2d6 | 854 | (count, hash_demangled_name_entry, eq_demangled_name_entry, |
3a494279 | 855 | free_demangled_name_entry, xcalloc, xfree)); |
2de7ced7 | 856 | } |
12af6855 | 857 | |
d55c9a68 | 858 | /* See symtab.h */ |
12af6855 | 859 | |
3456e70c | 860 | gdb::unique_xmalloc_ptr<char> |
2de7ced7 DJ |
861 | symbol_find_demangled_name (struct general_symbol_info *gsymbol, |
862 | const char *mangled) | |
12af6855 | 863 | { |
3456e70c | 864 | gdb::unique_xmalloc_ptr<char> demangled; |
8b302db8 | 865 | int i; |
12af6855 | 866 | |
c1b5c1eb CB |
867 | if (gsymbol->language () == language_unknown) |
868 | gsymbol->m_language = language_auto; | |
1bae87b9 | 869 | |
c1b5c1eb | 870 | if (gsymbol->language () != language_auto) |
1bae87b9 | 871 | { |
c1b5c1eb | 872 | const struct language_defn *lang = language_def (gsymbol->language ()); |
8b302db8 | 873 | |
6f827019 | 874 | lang->sniff_from_mangled_name (mangled, &demangled); |
8b302db8 | 875 | return demangled; |
6aecb9c2 | 876 | } |
8b302db8 TT |
877 | |
878 | for (i = language_unknown; i < nr_languages; ++i) | |
a766d390 | 879 | { |
8b302db8 TT |
880 | enum language l = (enum language) i; |
881 | const struct language_defn *lang = language_def (l); | |
882 | ||
6f827019 | 883 | if (lang->sniff_from_mangled_name (mangled, &demangled)) |
a766d390 | 884 | { |
c1b5c1eb | 885 | gsymbol->m_language = l; |
a766d390 DE |
886 | return demangled; |
887 | } | |
888 | } | |
889 | ||
2de7ced7 DJ |
890 | return NULL; |
891 | } | |
892 | ||
980cae7a | 893 | /* Set both the mangled and demangled (if any) names for GSYMBOL based |
04a679b8 TT |
894 | on LINKAGE_NAME and LEN. Ordinarily, NAME is copied onto the |
895 | objfile's obstack; but if COPY_NAME is 0 and if NAME is | |
896 | NUL-terminated, then this function assumes that NAME is already | |
897 | correctly saved (either permanently or with a lifetime tied to the | |
898 | objfile), and it will not be copied. | |
899 | ||
900 | The hash table corresponding to OBJFILE is used, and the memory | |
84a1243b | 901 | comes from the per-BFD storage_obstack. LINKAGE_NAME is copied, |
04a679b8 | 902 | so the pointer can be discarded after calling this function. */ |
2de7ced7 DJ |
903 | |
904 | void | |
4d4eaa30 CB |
905 | general_symbol_info::compute_and_set_names (gdb::string_view linkage_name, |
906 | bool copy_name, | |
907 | objfile_per_bfd_storage *per_bfd, | |
908 | gdb::optional<hashval_t> hash) | |
2de7ced7 | 909 | { |
04a679b8 | 910 | struct demangled_name_entry **slot; |
2de7ced7 | 911 | |
4d4eaa30 | 912 | if (language () == language_ada) |
b06ead72 JB |
913 | { |
914 | /* In Ada, we do the symbol lookups using the mangled name, so | |
dda83cd7 | 915 | we can save some space by not storing the demangled name. */ |
92174eea | 916 | if (!copy_name) |
4d4eaa30 | 917 | m_name = linkage_name.data (); |
04a679b8 | 918 | else |
869d8950 TT |
919 | m_name = obstack_strndup (&per_bfd->storage_obstack, |
920 | linkage_name.data (), | |
921 | linkage_name.length ()); | |
ff985671 | 922 | set_demangled_name (NULL, &per_bfd->storage_obstack); |
b06ead72 JB |
923 | |
924 | return; | |
925 | } | |
926 | ||
84a1243b | 927 | if (per_bfd->demangled_names_hash == NULL) |
0f14768a | 928 | create_demangled_names_hash (per_bfd); |
04a679b8 | 929 | |
31edb802 | 930 | struct demangled_name_entry entry (linkage_name); |
e76b2246 CB |
931 | if (!hash.has_value ()) |
932 | hash = hash_demangled_name_entry (&entry); | |
04a679b8 | 933 | slot = ((struct demangled_name_entry **) |
dda83cd7 | 934 | htab_find_slot_with_hash (per_bfd->demangled_names_hash.get (), |
e76b2246 | 935 | &entry, *hash, INSERT)); |
2de7ced7 | 936 | |
57d75002 CB |
937 | /* The const_cast is safe because the only reason it is already |
938 | initialized is if we purposefully set it from a background | |
939 | thread to avoid doing the work here. However, it is still | |
940 | allocated from the heap and needs to be freed by us, just | |
941 | like if we called symbol_find_demangled_name here. If this is | |
942 | nullptr, we call symbol_find_demangled_name below, but we put | |
943 | this smart pointer here to be sure that we don't leak this name. */ | |
944 | gdb::unique_xmalloc_ptr<char> demangled_name | |
945 | (const_cast<char *> (language_specific.demangled_name)); | |
946 | ||
2de7ced7 | 947 | /* If this name is not in the hash table, add it. */ |
a766d390 DE |
948 | if (*slot == NULL |
949 | /* A C version of the symbol may have already snuck into the table. | |
950 | This happens to, e.g., main.init (__go_init_main). Cope. */ | |
4d4eaa30 | 951 | || (language () == language_go && (*slot)->demangled == nullptr)) |
2de7ced7 | 952 | { |
0c921b21 | 953 | /* A 0-terminated copy of the linkage name. Callers must set COPY_NAME |
dda83cd7 SM |
954 | to true if the string might not be nullterminated. We have to make |
955 | this copy because demangling needs a nullterminated string. */ | |
31edb802 | 956 | gdb::string_view linkage_name_copy; |
0c921b21 CB |
957 | if (copy_name) |
958 | { | |
31edb802 CB |
959 | char *alloc_name = (char *) alloca (linkage_name.length () + 1); |
960 | memcpy (alloc_name, linkage_name.data (), linkage_name.length ()); | |
961 | alloc_name[linkage_name.length ()] = '\0'; | |
0c921b21 | 962 | |
31edb802 CB |
963 | linkage_name_copy = gdb::string_view (alloc_name, |
964 | linkage_name.length ()); | |
0c921b21 CB |
965 | } |
966 | else | |
967 | linkage_name_copy = linkage_name; | |
968 | ||
57d75002 | 969 | if (demangled_name.get () == nullptr) |
3456e70c TT |
970 | demangled_name |
971 | = symbol_find_demangled_name (this, linkage_name_copy.data ()); | |
2de7ced7 | 972 | |
04a679b8 | 973 | /* Suppose we have demangled_name==NULL, copy_name==0, and |
9c37b5ae | 974 | linkage_name_copy==linkage_name. In this case, we already have the |
04a679b8 TT |
975 | mangled name saved, and we don't have a demangled name. So, |
976 | you might think we could save a little space by not recording | |
977 | this in the hash table at all. | |
5396ae17 | 978 | |
04a679b8 TT |
979 | It turns out that it is actually important to still save such |
980 | an entry in the hash table, because storing this name gives | |
705b5767 | 981 | us better bcache hit rates for partial symbols. */ |
0c921b21 | 982 | if (!copy_name) |
04a679b8 | 983 | { |
224c3ddb SM |
984 | *slot |
985 | = ((struct demangled_name_entry *) | |
986 | obstack_alloc (&per_bfd->storage_obstack, | |
5396ae17 | 987 | sizeof (demangled_name_entry))); |
31edb802 | 988 | new (*slot) demangled_name_entry (linkage_name); |
04a679b8 TT |
989 | } |
990 | else | |
991 | { | |
992 | /* If we must copy the mangled name, put it directly after | |
5396ae17 | 993 | the struct so we can have a single allocation. */ |
224c3ddb SM |
994 | *slot |
995 | = ((struct demangled_name_entry *) | |
996 | obstack_alloc (&per_bfd->storage_obstack, | |
31edb802 CB |
997 | sizeof (demangled_name_entry) |
998 | + linkage_name.length () + 1)); | |
5396ae17 | 999 | char *mangled_ptr = reinterpret_cast<char *> (*slot + 1); |
31edb802 CB |
1000 | memcpy (mangled_ptr, linkage_name.data (), linkage_name.length ()); |
1001 | mangled_ptr [linkage_name.length ()] = '\0'; | |
3a494279 | 1002 | new (*slot) demangled_name_entry |
31edb802 | 1003 | (gdb::string_view (mangled_ptr, linkage_name.length ())); |
04a679b8 | 1004 | } |
d55c9a68 | 1005 | (*slot)->demangled = std::move (demangled_name); |
4d4eaa30 | 1006 | (*slot)->language = language (); |
2de7ced7 | 1007 | } |
4d4eaa30 CB |
1008 | else if (language () == language_unknown || language () == language_auto) |
1009 | m_language = (*slot)->language; | |
2de7ced7 | 1010 | |
4d4eaa30 | 1011 | m_name = (*slot)->mangled.data (); |
ff985671 | 1012 | set_demangled_name ((*slot)->demangled.get (), &per_bfd->storage_obstack); |
2de7ced7 DJ |
1013 | } |
1014 | ||
c9d95fa3 | 1015 | /* See symtab.h. */ |
22abf04a | 1016 | |
0d5cff50 | 1017 | const char * |
c9d95fa3 | 1018 | general_symbol_info::natural_name () const |
22abf04a | 1019 | { |
c1b5c1eb | 1020 | switch (language ()) |
22abf04a | 1021 | { |
1f8173e6 | 1022 | case language_cplus: |
6aecb9c2 | 1023 | case language_d: |
a766d390 | 1024 | case language_go: |
1f8173e6 | 1025 | case language_objc: |
f55ee35c | 1026 | case language_fortran: |
8c87a452 | 1027 | case language_rust: |
7151c1af TT |
1028 | if (language_specific.demangled_name != nullptr) |
1029 | return language_specific.demangled_name; | |
1f8173e6 PH |
1030 | break; |
1031 | case language_ada: | |
c9d95fa3 | 1032 | return ada_decode_symbol (this); |
1f8173e6 PH |
1033 | default: |
1034 | break; | |
22abf04a | 1035 | } |
4d4eaa30 | 1036 | return linkage_name (); |
22abf04a DC |
1037 | } |
1038 | ||
c9d95fa3 | 1039 | /* See symtab.h. */ |
eca864fe | 1040 | |
0d5cff50 | 1041 | const char * |
c9d95fa3 | 1042 | general_symbol_info::demangled_name () const |
9cc0d196 | 1043 | { |
c6e5ee5e SDJ |
1044 | const char *dem_name = NULL; |
1045 | ||
c1b5c1eb | 1046 | switch (language ()) |
1f8173e6 PH |
1047 | { |
1048 | case language_cplus: | |
6aecb9c2 | 1049 | case language_d: |
a766d390 | 1050 | case language_go: |
1f8173e6 | 1051 | case language_objc: |
f55ee35c | 1052 | case language_fortran: |
8c87a452 | 1053 | case language_rust: |
7151c1af | 1054 | dem_name = language_specific.demangled_name; |
1f8173e6 PH |
1055 | break; |
1056 | case language_ada: | |
c9d95fa3 | 1057 | dem_name = ada_decode_symbol (this); |
1f8173e6 PH |
1058 | break; |
1059 | default: | |
1060 | break; | |
1061 | } | |
c6e5ee5e | 1062 | return dem_name; |
9cc0d196 | 1063 | } |
fe39c653 | 1064 | |
c9d95fa3 | 1065 | /* See symtab.h. */ |
eca864fe | 1066 | |
0d5cff50 | 1067 | const char * |
c9d95fa3 | 1068 | general_symbol_info::search_name () const |
fc062ac6 | 1069 | { |
c1b5c1eb | 1070 | if (language () == language_ada) |
4d4eaa30 | 1071 | return linkage_name (); |
1f8173e6 | 1072 | else |
c9d95fa3 | 1073 | return natural_name (); |
4725b721 | 1074 | } |
b5ec771e PA |
1075 | |
1076 | /* See symtab.h. */ | |
1077 | ||
ebbc3a7d AB |
1078 | struct obj_section * |
1079 | general_symbol_info::obj_section (const struct objfile *objfile) const | |
1080 | { | |
a52d653e AB |
1081 | if (section_index () >= 0) |
1082 | return &objfile->sections[section_index ()]; | |
ebbc3a7d AB |
1083 | return nullptr; |
1084 | } | |
1085 | ||
1086 | /* See symtab.h. */ | |
1087 | ||
b5ec771e PA |
1088 | bool |
1089 | symbol_matches_search_name (const struct general_symbol_info *gsymbol, | |
1090 | const lookup_name_info &name) | |
1091 | { | |
1092 | symbol_name_matcher_ftype *name_match | |
c9debfb9 | 1093 | = language_def (gsymbol->language ())->get_symbol_name_matcher (name); |
c9d95fa3 | 1094 | return name_match (gsymbol->search_name (), name, NULL); |
b5ec771e PA |
1095 | } |
1096 | ||
c906108c SS |
1097 | \f |
1098 | ||
ececd218 | 1099 | /* Return true if the two sections are the same, or if they could |
94277a38 DJ |
1100 | plausibly be copies of each other, one in an original object |
1101 | file and another in a separated debug file. */ | |
1102 | ||
ececd218 | 1103 | bool |
714835d5 UW |
1104 | matching_obj_sections (struct obj_section *obj_first, |
1105 | struct obj_section *obj_second) | |
94277a38 | 1106 | { |
714835d5 UW |
1107 | asection *first = obj_first? obj_first->the_bfd_section : NULL; |
1108 | asection *second = obj_second? obj_second->the_bfd_section : NULL; | |
94277a38 DJ |
1109 | |
1110 | /* If they're the same section, then they match. */ | |
1111 | if (first == second) | |
ececd218 | 1112 | return true; |
94277a38 DJ |
1113 | |
1114 | /* If either is NULL, give up. */ | |
1115 | if (first == NULL || second == NULL) | |
ececd218 | 1116 | return false; |
94277a38 DJ |
1117 | |
1118 | /* This doesn't apply to absolute symbols. */ | |
1119 | if (first->owner == NULL || second->owner == NULL) | |
ececd218 | 1120 | return false; |
94277a38 DJ |
1121 | |
1122 | /* If they're in the same object file, they must be different sections. */ | |
1123 | if (first->owner == second->owner) | |
ececd218 | 1124 | return false; |
94277a38 DJ |
1125 | |
1126 | /* Check whether the two sections are potentially corresponding. They must | |
1127 | have the same size, address, and name. We can't compare section indexes, | |
1128 | which would be more reliable, because some sections may have been | |
1129 | stripped. */ | |
fd361982 | 1130 | if (bfd_section_size (first) != bfd_section_size (second)) |
ececd218 | 1131 | return false; |
94277a38 | 1132 | |
818f79f6 | 1133 | /* In-memory addresses may start at a different offset, relativize them. */ |
fd361982 AM |
1134 | if (bfd_section_vma (first) - bfd_get_start_address (first->owner) |
1135 | != bfd_section_vma (second) - bfd_get_start_address (second->owner)) | |
ececd218 | 1136 | return false; |
94277a38 | 1137 | |
fd361982 AM |
1138 | if (bfd_section_name (first) == NULL |
1139 | || bfd_section_name (second) == NULL | |
1140 | || strcmp (bfd_section_name (first), bfd_section_name (second)) != 0) | |
ececd218 | 1141 | return false; |
94277a38 DJ |
1142 | |
1143 | /* Otherwise check that they are in corresponding objfiles. */ | |
1144 | ||
9d7c67bf | 1145 | struct objfile *obj = NULL; |
2030c079 | 1146 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
1147 | if (objfile->obfd == first->owner) |
1148 | { | |
1149 | obj = objfile; | |
1150 | break; | |
1151 | } | |
94277a38 DJ |
1152 | gdb_assert (obj != NULL); |
1153 | ||
1154 | if (obj->separate_debug_objfile != NULL | |
1155 | && obj->separate_debug_objfile->obfd == second->owner) | |
ececd218 | 1156 | return true; |
94277a38 DJ |
1157 | if (obj->separate_debug_objfile_backlink != NULL |
1158 | && obj->separate_debug_objfile_backlink->obfd == second->owner) | |
ececd218 | 1159 | return true; |
94277a38 | 1160 | |
ececd218 | 1161 | return false; |
94277a38 | 1162 | } |
c5aa993b | 1163 | |
2097ae25 DE |
1164 | /* See symtab.h. */ |
1165 | ||
1166 | void | |
1167 | expand_symtab_containing_pc (CORE_ADDR pc, struct obj_section *section) | |
c906108c | 1168 | { |
77e371c0 | 1169 | struct bound_minimal_symbol msymbol; |
8a48e967 DJ |
1170 | |
1171 | /* If we know that this is not a text address, return failure. This is | |
1172 | necessary because we loop based on texthigh and textlow, which do | |
1173 | not include the data ranges. */ | |
77e371c0 | 1174 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); |
1ed9f74e | 1175 | if (msymbol.minsym && msymbol.minsym->data_p ()) |
2097ae25 | 1176 | return; |
c906108c | 1177 | |
2030c079 | 1178 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 | 1179 | { |
4d080b46 TT |
1180 | struct compunit_symtab *cust |
1181 | = objfile->find_pc_sect_compunit_symtab (msymbol, pc, section, 0); | |
aed57c53 TT |
1182 | if (cust) |
1183 | return; | |
1184 | } | |
c906108c | 1185 | } |
c906108c | 1186 | \f |
f57d2163 DE |
1187 | /* Hash function for the symbol cache. */ |
1188 | ||
1189 | static unsigned int | |
1190 | hash_symbol_entry (const struct objfile *objfile_context, | |
1191 | const char *name, domain_enum domain) | |
1192 | { | |
1193 | unsigned int hash = (uintptr_t) objfile_context; | |
1194 | ||
1195 | if (name != NULL) | |
1196 | hash += htab_hash_string (name); | |
1197 | ||
2c26b84f DE |
1198 | /* Because of symbol_matches_domain we need VAR_DOMAIN and STRUCT_DOMAIN |
1199 | to map to the same slot. */ | |
1200 | if (domain == STRUCT_DOMAIN) | |
1201 | hash += VAR_DOMAIN * 7; | |
1202 | else | |
1203 | hash += domain * 7; | |
f57d2163 DE |
1204 | |
1205 | return hash; | |
1206 | } | |
1207 | ||
1208 | /* Equality function for the symbol cache. */ | |
1209 | ||
1210 | static int | |
1211 | eq_symbol_entry (const struct symbol_cache_slot *slot, | |
1212 | const struct objfile *objfile_context, | |
1213 | const char *name, domain_enum domain) | |
1214 | { | |
1215 | const char *slot_name; | |
1216 | domain_enum slot_domain; | |
1217 | ||
1218 | if (slot->state == SYMBOL_SLOT_UNUSED) | |
1219 | return 0; | |
1220 | ||
1221 | if (slot->objfile_context != objfile_context) | |
1222 | return 0; | |
1223 | ||
1224 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
1225 | { | |
1226 | slot_name = slot->value.not_found.name; | |
1227 | slot_domain = slot->value.not_found.domain; | |
1228 | } | |
1229 | else | |
1230 | { | |
987012b8 | 1231 | slot_name = slot->value.found.symbol->search_name (); |
d12307c1 | 1232 | slot_domain = SYMBOL_DOMAIN (slot->value.found.symbol); |
f57d2163 DE |
1233 | } |
1234 | ||
1235 | /* NULL names match. */ | |
1236 | if (slot_name == NULL && name == NULL) | |
1237 | { | |
1238 | /* But there's no point in calling symbol_matches_domain in the | |
1239 | SYMBOL_SLOT_FOUND case. */ | |
1240 | if (slot_domain != domain) | |
1241 | return 0; | |
1242 | } | |
1243 | else if (slot_name != NULL && name != NULL) | |
1244 | { | |
b5ec771e PA |
1245 | /* It's important that we use the same comparison that was done |
1246 | the first time through. If the slot records a found symbol, | |
1247 | then this means using the symbol name comparison function of | |
987012b8 | 1248 | the symbol's language with symbol->search_name (). See |
b5ec771e PA |
1249 | dictionary.c. It also means using symbol_matches_domain for |
1250 | found symbols. See block.c. | |
f57d2163 DE |
1251 | |
1252 | If the slot records a not-found symbol, then require a precise match. | |
1253 | We could still be lax with whitespace like strcmp_iw though. */ | |
1254 | ||
1255 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
1256 | { | |
1257 | if (strcmp (slot_name, name) != 0) | |
1258 | return 0; | |
1259 | if (slot_domain != domain) | |
1260 | return 0; | |
1261 | } | |
1262 | else | |
1263 | { | |
d12307c1 | 1264 | struct symbol *sym = slot->value.found.symbol; |
b5ec771e | 1265 | lookup_name_info lookup_name (name, symbol_name_match_type::FULL); |
f57d2163 | 1266 | |
b5ec771e | 1267 | if (!SYMBOL_MATCHES_SEARCH_NAME (sym, lookup_name)) |
f57d2163 | 1268 | return 0; |
b5ec771e | 1269 | |
c1b5c1eb | 1270 | if (!symbol_matches_domain (sym->language (), slot_domain, domain)) |
f57d2163 DE |
1271 | return 0; |
1272 | } | |
1273 | } | |
1274 | else | |
1275 | { | |
1276 | /* Only one name is NULL. */ | |
1277 | return 0; | |
1278 | } | |
1279 | ||
1280 | return 1; | |
1281 | } | |
1282 | ||
1283 | /* Given a cache of size SIZE, return the size of the struct (with variable | |
1284 | length array) in bytes. */ | |
1285 | ||
1286 | static size_t | |
1287 | symbol_cache_byte_size (unsigned int size) | |
1288 | { | |
1289 | return (sizeof (struct block_symbol_cache) | |
1290 | + ((size - 1) * sizeof (struct symbol_cache_slot))); | |
1291 | } | |
1292 | ||
1293 | /* Resize CACHE. */ | |
1294 | ||
1295 | static void | |
1296 | resize_symbol_cache (struct symbol_cache *cache, unsigned int new_size) | |
1297 | { | |
1298 | /* If there's no change in size, don't do anything. | |
1299 | All caches have the same size, so we can just compare with the size | |
1300 | of the global symbols cache. */ | |
1301 | if ((cache->global_symbols != NULL | |
1302 | && cache->global_symbols->size == new_size) | |
1303 | || (cache->global_symbols == NULL | |
1304 | && new_size == 0)) | |
1305 | return; | |
1306 | ||
82f910ea PW |
1307 | destroy_block_symbol_cache (cache->global_symbols); |
1308 | destroy_block_symbol_cache (cache->static_symbols); | |
f57d2163 DE |
1309 | |
1310 | if (new_size == 0) | |
1311 | { | |
1312 | cache->global_symbols = NULL; | |
1313 | cache->static_symbols = NULL; | |
1314 | } | |
1315 | else | |
1316 | { | |
1317 | size_t total_size = symbol_cache_byte_size (new_size); | |
1318 | ||
224c3ddb SM |
1319 | cache->global_symbols |
1320 | = (struct block_symbol_cache *) xcalloc (1, total_size); | |
1321 | cache->static_symbols | |
1322 | = (struct block_symbol_cache *) xcalloc (1, total_size); | |
f57d2163 DE |
1323 | cache->global_symbols->size = new_size; |
1324 | cache->static_symbols->size = new_size; | |
1325 | } | |
1326 | } | |
1327 | ||
f57d2163 DE |
1328 | /* Return the symbol cache of PSPACE. |
1329 | Create one if it doesn't exist yet. */ | |
1330 | ||
1331 | static struct symbol_cache * | |
1332 | get_symbol_cache (struct program_space *pspace) | |
1333 | { | |
3017b94d | 1334 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 DE |
1335 | |
1336 | if (cache == NULL) | |
1337 | { | |
3017b94d TT |
1338 | cache = symbol_cache_key.emplace (pspace); |
1339 | resize_symbol_cache (cache, symbol_cache_size); | |
f57d2163 DE |
1340 | } |
1341 | ||
1342 | return cache; | |
1343 | } | |
1344 | ||
f57d2163 DE |
1345 | /* Set the size of the symbol cache in all program spaces. */ |
1346 | ||
1347 | static void | |
1348 | set_symbol_cache_size (unsigned int new_size) | |
1349 | { | |
94c93c35 | 1350 | for (struct program_space *pspace : program_spaces) |
f57d2163 | 1351 | { |
3017b94d | 1352 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 DE |
1353 | |
1354 | /* The pspace could have been created but not have a cache yet. */ | |
1355 | if (cache != NULL) | |
1356 | resize_symbol_cache (cache, new_size); | |
1357 | } | |
1358 | } | |
1359 | ||
1360 | /* Called when symbol-cache-size is set. */ | |
1361 | ||
1362 | static void | |
eb4c3f4a | 1363 | set_symbol_cache_size_handler (const char *args, int from_tty, |
f57d2163 DE |
1364 | struct cmd_list_element *c) |
1365 | { | |
1366 | if (new_symbol_cache_size > MAX_SYMBOL_CACHE_SIZE) | |
1367 | { | |
1368 | /* Restore the previous value. | |
1369 | This is the value the "show" command prints. */ | |
1370 | new_symbol_cache_size = symbol_cache_size; | |
1371 | ||
1372 | error (_("Symbol cache size is too large, max is %u."), | |
1373 | MAX_SYMBOL_CACHE_SIZE); | |
1374 | } | |
1375 | symbol_cache_size = new_symbol_cache_size; | |
1376 | ||
1377 | set_symbol_cache_size (symbol_cache_size); | |
1378 | } | |
1379 | ||
1380 | /* Lookup symbol NAME,DOMAIN in BLOCK in the symbol cache of PSPACE. | |
1381 | OBJFILE_CONTEXT is the current objfile, which may be NULL. | |
1382 | The result is the symbol if found, SYMBOL_LOOKUP_FAILED if a previous lookup | |
1383 | failed (and thus this one will too), or NULL if the symbol is not present | |
1384 | in the cache. | |
d0509ba4 CB |
1385 | *BSC_PTR and *SLOT_PTR are set to the cache and slot of the symbol, which |
1386 | can be used to save the result of a full lookup attempt. */ | |
f57d2163 | 1387 | |
d12307c1 | 1388 | static struct block_symbol |
f57d2163 | 1389 | symbol_cache_lookup (struct symbol_cache *cache, |
ddbcedf5 | 1390 | struct objfile *objfile_context, enum block_enum block, |
f57d2163 DE |
1391 | const char *name, domain_enum domain, |
1392 | struct block_symbol_cache **bsc_ptr, | |
1393 | struct symbol_cache_slot **slot_ptr) | |
1394 | { | |
1395 | struct block_symbol_cache *bsc; | |
1396 | unsigned int hash; | |
1397 | struct symbol_cache_slot *slot; | |
1398 | ||
1399 | if (block == GLOBAL_BLOCK) | |
1400 | bsc = cache->global_symbols; | |
1401 | else | |
1402 | bsc = cache->static_symbols; | |
1403 | if (bsc == NULL) | |
1404 | { | |
1405 | *bsc_ptr = NULL; | |
1406 | *slot_ptr = NULL; | |
6640a367 | 1407 | return {}; |
f57d2163 DE |
1408 | } |
1409 | ||
1410 | hash = hash_symbol_entry (objfile_context, name, domain); | |
1411 | slot = bsc->symbols + hash % bsc->size; | |
f57d2163 | 1412 | |
d0509ba4 CB |
1413 | *bsc_ptr = bsc; |
1414 | *slot_ptr = slot; | |
1415 | ||
f57d2163 DE |
1416 | if (eq_symbol_entry (slot, objfile_context, name, domain)) |
1417 | { | |
1418 | if (symbol_lookup_debug) | |
1419 | fprintf_unfiltered (gdb_stdlog, | |
1420 | "%s block symbol cache hit%s for %s, %s\n", | |
1421 | block == GLOBAL_BLOCK ? "Global" : "Static", | |
1422 | slot->state == SYMBOL_SLOT_NOT_FOUND | |
1423 | ? " (not found)" : "", | |
1424 | name, domain_name (domain)); | |
1425 | ++bsc->hits; | |
1426 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
1427 | return SYMBOL_LOOKUP_FAILED; | |
1428 | return slot->value.found; | |
1429 | } | |
1430 | ||
2c26b84f DE |
1431 | /* Symbol is not present in the cache. */ |
1432 | ||
f57d2163 DE |
1433 | if (symbol_lookup_debug) |
1434 | { | |
1435 | fprintf_unfiltered (gdb_stdlog, | |
1436 | "%s block symbol cache miss for %s, %s\n", | |
1437 | block == GLOBAL_BLOCK ? "Global" : "Static", | |
1438 | name, domain_name (domain)); | |
1439 | } | |
1440 | ++bsc->misses; | |
6640a367 | 1441 | return {}; |
f57d2163 DE |
1442 | } |
1443 | ||
f57d2163 DE |
1444 | /* Mark SYMBOL as found in SLOT. |
1445 | OBJFILE_CONTEXT is the current objfile when the lookup was done, or NULL | |
1446 | if it's not needed to distinguish lookups (STATIC_BLOCK). It is *not* | |
1447 | necessarily the objfile the symbol was found in. */ | |
1448 | ||
1449 | static void | |
1450 | symbol_cache_mark_found (struct block_symbol_cache *bsc, | |
1451 | struct symbol_cache_slot *slot, | |
1452 | struct objfile *objfile_context, | |
d12307c1 PMR |
1453 | struct symbol *symbol, |
1454 | const struct block *block) | |
f57d2163 DE |
1455 | { |
1456 | if (bsc == NULL) | |
1457 | return; | |
1458 | if (slot->state != SYMBOL_SLOT_UNUSED) | |
1459 | { | |
1460 | ++bsc->collisions; | |
1461 | symbol_cache_clear_slot (slot); | |
1462 | } | |
1463 | slot->state = SYMBOL_SLOT_FOUND; | |
1464 | slot->objfile_context = objfile_context; | |
d12307c1 PMR |
1465 | slot->value.found.symbol = symbol; |
1466 | slot->value.found.block = block; | |
f57d2163 DE |
1467 | } |
1468 | ||
1469 | /* Mark symbol NAME, DOMAIN as not found in SLOT. | |
1470 | OBJFILE_CONTEXT is the current objfile when the lookup was done, or NULL | |
1471 | if it's not needed to distinguish lookups (STATIC_BLOCK). */ | |
1472 | ||
1473 | static void | |
1474 | symbol_cache_mark_not_found (struct block_symbol_cache *bsc, | |
1475 | struct symbol_cache_slot *slot, | |
1476 | struct objfile *objfile_context, | |
1477 | const char *name, domain_enum domain) | |
1478 | { | |
1479 | if (bsc == NULL) | |
1480 | return; | |
1481 | if (slot->state != SYMBOL_SLOT_UNUSED) | |
1482 | { | |
1483 | ++bsc->collisions; | |
1484 | symbol_cache_clear_slot (slot); | |
1485 | } | |
1486 | slot->state = SYMBOL_SLOT_NOT_FOUND; | |
1487 | slot->objfile_context = objfile_context; | |
1488 | slot->value.not_found.name = xstrdup (name); | |
1489 | slot->value.not_found.domain = domain; | |
1490 | } | |
1491 | ||
1492 | /* Flush the symbol cache of PSPACE. */ | |
1493 | ||
1494 | static void | |
1495 | symbol_cache_flush (struct program_space *pspace) | |
1496 | { | |
3017b94d | 1497 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 | 1498 | int pass; |
f57d2163 DE |
1499 | |
1500 | if (cache == NULL) | |
1501 | return; | |
1502 | if (cache->global_symbols == NULL) | |
1503 | { | |
1504 | gdb_assert (symbol_cache_size == 0); | |
1505 | gdb_assert (cache->static_symbols == NULL); | |
1506 | return; | |
1507 | } | |
1508 | ||
1509 | /* If the cache is untouched since the last flush, early exit. | |
1510 | This is important for performance during the startup of a program linked | |
1511 | with 100s (or 1000s) of shared libraries. */ | |
1512 | if (cache->global_symbols->misses == 0 | |
1513 | && cache->static_symbols->misses == 0) | |
1514 | return; | |
1515 | ||
1516 | gdb_assert (cache->global_symbols->size == symbol_cache_size); | |
1517 | gdb_assert (cache->static_symbols->size == symbol_cache_size); | |
1518 | ||
1519 | for (pass = 0; pass < 2; ++pass) | |
1520 | { | |
1521 | struct block_symbol_cache *bsc | |
1522 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1523 | unsigned int i; | |
1524 | ||
1525 | for (i = 0; i < bsc->size; ++i) | |
1526 | symbol_cache_clear_slot (&bsc->symbols[i]); | |
1527 | } | |
1528 | ||
1529 | cache->global_symbols->hits = 0; | |
1530 | cache->global_symbols->misses = 0; | |
1531 | cache->global_symbols->collisions = 0; | |
1532 | cache->static_symbols->hits = 0; | |
1533 | cache->static_symbols->misses = 0; | |
1534 | cache->static_symbols->collisions = 0; | |
1535 | } | |
1536 | ||
1537 | /* Dump CACHE. */ | |
1538 | ||
1539 | static void | |
1540 | symbol_cache_dump (const struct symbol_cache *cache) | |
1541 | { | |
1542 | int pass; | |
1543 | ||
1544 | if (cache->global_symbols == NULL) | |
1545 | { | |
1546 | printf_filtered (" <disabled>\n"); | |
1547 | return; | |
1548 | } | |
1549 | ||
1550 | for (pass = 0; pass < 2; ++pass) | |
1551 | { | |
1552 | const struct block_symbol_cache *bsc | |
1553 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1554 | unsigned int i; | |
1555 | ||
1556 | if (pass == 0) | |
1557 | printf_filtered ("Global symbols:\n"); | |
1558 | else | |
1559 | printf_filtered ("Static symbols:\n"); | |
1560 | ||
1561 | for (i = 0; i < bsc->size; ++i) | |
1562 | { | |
1563 | const struct symbol_cache_slot *slot = &bsc->symbols[i]; | |
1564 | ||
1565 | QUIT; | |
1566 | ||
1567 | switch (slot->state) | |
1568 | { | |
1569 | case SYMBOL_SLOT_UNUSED: | |
1570 | break; | |
1571 | case SYMBOL_SLOT_NOT_FOUND: | |
2c26b84f | 1572 | printf_filtered (" [%4u] = %s, %s %s (not found)\n", i, |
f57d2163 | 1573 | host_address_to_string (slot->objfile_context), |
2c26b84f DE |
1574 | slot->value.not_found.name, |
1575 | domain_name (slot->value.not_found.domain)); | |
f57d2163 DE |
1576 | break; |
1577 | case SYMBOL_SLOT_FOUND: | |
d12307c1 PMR |
1578 | { |
1579 | struct symbol *found = slot->value.found.symbol; | |
1580 | const struct objfile *context = slot->objfile_context; | |
1581 | ||
1582 | printf_filtered (" [%4u] = %s, %s %s\n", i, | |
1583 | host_address_to_string (context), | |
987012b8 | 1584 | found->print_name (), |
d12307c1 PMR |
1585 | domain_name (SYMBOL_DOMAIN (found))); |
1586 | break; | |
1587 | } | |
f57d2163 DE |
1588 | } |
1589 | } | |
1590 | } | |
1591 | } | |
1592 | ||
1593 | /* The "mt print symbol-cache" command. */ | |
1594 | ||
1595 | static void | |
510e5e56 | 1596 | maintenance_print_symbol_cache (const char *args, int from_tty) |
f57d2163 | 1597 | { |
94c93c35 | 1598 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1599 | { |
1600 | struct symbol_cache *cache; | |
1601 | ||
1602 | printf_filtered (_("Symbol cache for pspace %d\n%s:\n"), | |
1603 | pspace->num, | |
1604 | pspace->symfile_object_file != NULL | |
1605 | ? objfile_name (pspace->symfile_object_file) | |
1606 | : "(no object file)"); | |
1607 | ||
1608 | /* If the cache hasn't been created yet, avoid creating one. */ | |
3017b94d | 1609 | cache = symbol_cache_key.get (pspace); |
f57d2163 DE |
1610 | if (cache == NULL) |
1611 | printf_filtered (" <empty>\n"); | |
1612 | else | |
1613 | symbol_cache_dump (cache); | |
1614 | } | |
1615 | } | |
1616 | ||
1617 | /* The "mt flush-symbol-cache" command. */ | |
1618 | ||
1619 | static void | |
510e5e56 | 1620 | maintenance_flush_symbol_cache (const char *args, int from_tty) |
f57d2163 | 1621 | { |
94c93c35 | 1622 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1623 | { |
1624 | symbol_cache_flush (pspace); | |
1625 | } | |
1626 | } | |
1627 | ||
1628 | /* Print usage statistics of CACHE. */ | |
1629 | ||
1630 | static void | |
1631 | symbol_cache_stats (struct symbol_cache *cache) | |
1632 | { | |
1633 | int pass; | |
1634 | ||
1635 | if (cache->global_symbols == NULL) | |
1636 | { | |
1637 | printf_filtered (" <disabled>\n"); | |
1638 | return; | |
1639 | } | |
1640 | ||
1641 | for (pass = 0; pass < 2; ++pass) | |
1642 | { | |
1643 | const struct block_symbol_cache *bsc | |
1644 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1645 | ||
1646 | QUIT; | |
1647 | ||
1648 | if (pass == 0) | |
1649 | printf_filtered ("Global block cache stats:\n"); | |
1650 | else | |
1651 | printf_filtered ("Static block cache stats:\n"); | |
1652 | ||
1653 | printf_filtered (" size: %u\n", bsc->size); | |
1654 | printf_filtered (" hits: %u\n", bsc->hits); | |
1655 | printf_filtered (" misses: %u\n", bsc->misses); | |
1656 | printf_filtered (" collisions: %u\n", bsc->collisions); | |
1657 | } | |
1658 | } | |
1659 | ||
1660 | /* The "mt print symbol-cache-statistics" command. */ | |
1661 | ||
1662 | static void | |
510e5e56 | 1663 | maintenance_print_symbol_cache_statistics (const char *args, int from_tty) |
f57d2163 | 1664 | { |
94c93c35 | 1665 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1666 | { |
1667 | struct symbol_cache *cache; | |
1668 | ||
1669 | printf_filtered (_("Symbol cache statistics for pspace %d\n%s:\n"), | |
1670 | pspace->num, | |
1671 | pspace->symfile_object_file != NULL | |
1672 | ? objfile_name (pspace->symfile_object_file) | |
1673 | : "(no object file)"); | |
1674 | ||
1675 | /* If the cache hasn't been created yet, avoid creating one. */ | |
3017b94d | 1676 | cache = symbol_cache_key.get (pspace); |
f57d2163 | 1677 | if (cache == NULL) |
24b21115 | 1678 | printf_filtered (" empty, no stats available\n"); |
f57d2163 DE |
1679 | else |
1680 | symbol_cache_stats (cache); | |
1681 | } | |
1682 | } | |
1683 | ||
1684 | /* This module's 'new_objfile' observer. */ | |
1685 | ||
1686 | static void | |
1687 | symtab_new_objfile_observer (struct objfile *objfile) | |
1688 | { | |
1689 | /* Ideally we'd use OBJFILE->pspace, but OBJFILE may be NULL. */ | |
1690 | symbol_cache_flush (current_program_space); | |
1691 | } | |
1692 | ||
1693 | /* This module's 'free_objfile' observer. */ | |
1694 | ||
1695 | static void | |
1696 | symtab_free_objfile_observer (struct objfile *objfile) | |
1697 | { | |
1698 | symbol_cache_flush (objfile->pspace); | |
1699 | } | |
1700 | \f | |
c906108c SS |
1701 | /* Debug symbols usually don't have section information. We need to dig that |
1702 | out of the minimal symbols and stash that in the debug symbol. */ | |
1703 | ||
ccefe4c4 | 1704 | void |
907fc202 UW |
1705 | fixup_section (struct general_symbol_info *ginfo, |
1706 | CORE_ADDR addr, struct objfile *objfile) | |
c906108c SS |
1707 | { |
1708 | struct minimal_symbol *msym; | |
c906108c | 1709 | |
bccdca4a UW |
1710 | /* First, check whether a minimal symbol with the same name exists |
1711 | and points to the same address. The address check is required | |
1712 | e.g. on PowerPC64, where the minimal symbol for a function will | |
1713 | point to the function descriptor, while the debug symbol will | |
1714 | point to the actual function code. */ | |
4d4eaa30 CB |
1715 | msym = lookup_minimal_symbol_by_pc_name (addr, ginfo->linkage_name (), |
1716 | objfile); | |
907fc202 | 1717 | if (msym) |
a52d653e | 1718 | ginfo->set_section_index (msym->section_index ()); |
907fc202 | 1719 | else |
19e2d14b KB |
1720 | { |
1721 | /* Static, function-local variables do appear in the linker | |
1722 | (minimal) symbols, but are frequently given names that won't | |
1723 | be found via lookup_minimal_symbol(). E.g., it has been | |
1724 | observed in frv-uclinux (ELF) executables that a static, | |
1725 | function-local variable named "foo" might appear in the | |
1726 | linker symbols as "foo.6" or "foo.3". Thus, there is no | |
1727 | point in attempting to extend the lookup-by-name mechanism to | |
1728 | handle this case due to the fact that there can be multiple | |
1729 | names. | |
9af17804 | 1730 | |
19e2d14b KB |
1731 | So, instead, search the section table when lookup by name has |
1732 | failed. The ``addr'' and ``endaddr'' fields may have already | |
6a053cb1 TT |
1733 | been relocated. If so, the relocation offset needs to be |
1734 | subtracted from these values when performing the comparison. | |
1735 | We unconditionally subtract it, because, when no relocation | |
1736 | has been performed, the value will simply be zero. | |
9af17804 | 1737 | |
19e2d14b KB |
1738 | The address of the symbol whose section we're fixing up HAS |
1739 | NOT BEEN adjusted (relocated) yet. It can't have been since | |
1740 | the section isn't yet known and knowing the section is | |
1741 | necessary in order to add the correct relocation value. In | |
1742 | other words, we wouldn't even be in this function (attempting | |
1743 | to compute the section) if it were already known. | |
1744 | ||
1745 | Note that it is possible to search the minimal symbols | |
1746 | (subtracting the relocation value if necessary) to find the | |
1747 | matching minimal symbol, but this is overkill and much less | |
1748 | efficient. It is not necessary to find the matching minimal | |
9af17804 DE |
1749 | symbol, only its section. |
1750 | ||
19e2d14b KB |
1751 | Note that this technique (of doing a section table search) |
1752 | can fail when unrelocated section addresses overlap. For | |
1753 | this reason, we still attempt a lookup by name prior to doing | |
1754 | a search of the section table. */ | |
9af17804 | 1755 | |
19e2d14b | 1756 | struct obj_section *s; |
e27d198c | 1757 | int fallback = -1; |
433759f7 | 1758 | |
19e2d14b KB |
1759 | ALL_OBJFILE_OSECTIONS (objfile, s) |
1760 | { | |
65cf3563 | 1761 | int idx = s - objfile->sections; |
6a053cb1 | 1762 | CORE_ADDR offset = objfile->section_offsets[idx]; |
19e2d14b | 1763 | |
e27d198c TT |
1764 | if (fallback == -1) |
1765 | fallback = idx; | |
1766 | ||
0c1bcd23 | 1767 | if (s->addr () - offset <= addr && addr < s->endaddr () - offset) |
19e2d14b | 1768 | { |
a52d653e | 1769 | ginfo->set_section_index (idx); |
19e2d14b KB |
1770 | return; |
1771 | } | |
1772 | } | |
e27d198c TT |
1773 | |
1774 | /* If we didn't find the section, assume it is in the first | |
1775 | section. If there is no allocated section, then it hardly | |
1776 | matters what we pick, so just pick zero. */ | |
1777 | if (fallback == -1) | |
a52d653e | 1778 | ginfo->set_section_index (0); |
e27d198c | 1779 | else |
a52d653e | 1780 | ginfo->set_section_index (fallback); |
19e2d14b | 1781 | } |
c906108c SS |
1782 | } |
1783 | ||
1784 | struct symbol * | |
fba45db2 | 1785 | fixup_symbol_section (struct symbol *sym, struct objfile *objfile) |
c906108c | 1786 | { |
907fc202 UW |
1787 | CORE_ADDR addr; |
1788 | ||
c906108c SS |
1789 | if (!sym) |
1790 | return NULL; | |
1791 | ||
1994afbf DE |
1792 | if (!SYMBOL_OBJFILE_OWNED (sym)) |
1793 | return sym; | |
1794 | ||
907fc202 UW |
1795 | /* We either have an OBJFILE, or we can get at it from the sym's |
1796 | symtab. Anything else is a bug. */ | |
08be3fe3 | 1797 | gdb_assert (objfile || symbol_symtab (sym)); |
907fc202 UW |
1798 | |
1799 | if (objfile == NULL) | |
08be3fe3 | 1800 | objfile = symbol_objfile (sym); |
907fc202 | 1801 | |
ebbc3a7d | 1802 | if (sym->obj_section (objfile) != nullptr) |
e27d198c TT |
1803 | return sym; |
1804 | ||
907fc202 UW |
1805 | /* We should have an objfile by now. */ |
1806 | gdb_assert (objfile); | |
1807 | ||
1808 | switch (SYMBOL_CLASS (sym)) | |
1809 | { | |
1810 | case LOC_STATIC: | |
1811 | case LOC_LABEL: | |
907fc202 UW |
1812 | addr = SYMBOL_VALUE_ADDRESS (sym); |
1813 | break; | |
1814 | case LOC_BLOCK: | |
2b1ffcfd | 1815 | addr = BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (sym)); |
907fc202 UW |
1816 | break; |
1817 | ||
1818 | default: | |
1819 | /* Nothing else will be listed in the minsyms -- no use looking | |
1820 | it up. */ | |
1821 | return sym; | |
1822 | } | |
1823 | ||
468c0cbb | 1824 | fixup_section (sym, addr, objfile); |
c906108c SS |
1825 | |
1826 | return sym; | |
1827 | } | |
1828 | ||
b5ec771e PA |
1829 | /* See symtab.h. */ |
1830 | ||
1831 | demangle_for_lookup_info::demangle_for_lookup_info | |
1832 | (const lookup_name_info &lookup_name, language lang) | |
1833 | { | |
1834 | demangle_result_storage storage; | |
1835 | ||
c62446b1 PA |
1836 | if (lookup_name.ignore_parameters () && lang == language_cplus) |
1837 | { | |
1838 | gdb::unique_xmalloc_ptr<char> without_params | |
e0802d59 | 1839 | = cp_remove_params_if_any (lookup_name.c_str (), |
c62446b1 PA |
1840 | lookup_name.completion_mode ()); |
1841 | ||
1842 | if (without_params != NULL) | |
1843 | { | |
de63c46b PA |
1844 | if (lookup_name.match_type () != symbol_name_match_type::SEARCH_NAME) |
1845 | m_demangled_name = demangle_for_lookup (without_params.get (), | |
1846 | lang, storage); | |
c62446b1 PA |
1847 | return; |
1848 | } | |
1849 | } | |
1850 | ||
de63c46b | 1851 | if (lookup_name.match_type () == symbol_name_match_type::SEARCH_NAME) |
e0802d59 | 1852 | m_demangled_name = lookup_name.c_str (); |
de63c46b | 1853 | else |
e0802d59 | 1854 | m_demangled_name = demangle_for_lookup (lookup_name.c_str (), |
de63c46b | 1855 | lang, storage); |
b5ec771e PA |
1856 | } |
1857 | ||
1858 | /* See symtab.h. */ | |
1859 | ||
1860 | const lookup_name_info & | |
1861 | lookup_name_info::match_any () | |
1862 | { | |
1863 | /* Lookup any symbol that "" would complete. I.e., this matches all | |
1864 | symbol names. */ | |
e0802d59 | 1865 | static const lookup_name_info lookup_name ("", symbol_name_match_type::FULL, |
b5ec771e PA |
1866 | true); |
1867 | ||
1868 | return lookup_name; | |
1869 | } | |
1870 | ||
f8eba3c6 | 1871 | /* Compute the demangled form of NAME as used by the various symbol |
2f408ecb PA |
1872 | lookup functions. The result can either be the input NAME |
1873 | directly, or a pointer to a buffer owned by the STORAGE object. | |
f8eba3c6 | 1874 | |
2f408ecb | 1875 | For Ada, this function just returns NAME, unmodified. |
f8eba3c6 TT |
1876 | Normally, Ada symbol lookups are performed using the encoded name |
1877 | rather than the demangled name, and so it might seem to make sense | |
1878 | for this function to return an encoded version of NAME. | |
1879 | Unfortunately, we cannot do this, because this function is used in | |
1880 | circumstances where it is not appropriate to try to encode NAME. | |
1881 | For instance, when displaying the frame info, we demangle the name | |
1882 | of each parameter, and then perform a symbol lookup inside our | |
1883 | function using that demangled name. In Ada, certain functions | |
1884 | have internally-generated parameters whose name contain uppercase | |
1885 | characters. Encoding those name would result in those uppercase | |
1886 | characters to become lowercase, and thus cause the symbol lookup | |
1887 | to fail. */ | |
c906108c | 1888 | |
2f408ecb | 1889 | const char * |
f8eba3c6 | 1890 | demangle_for_lookup (const char *name, enum language lang, |
2f408ecb | 1891 | demangle_result_storage &storage) |
c906108c | 1892 | { |
9c37b5ae | 1893 | /* If we are using C++, D, or Go, demangle the name before doing a |
c378eb4e | 1894 | lookup, so we can always binary search. */ |
53c5240f | 1895 | if (lang == language_cplus) |
729051e6 | 1896 | { |
3456e70c TT |
1897 | gdb::unique_xmalloc_ptr<char> demangled_name |
1898 | = gdb_demangle (name, DMGL_ANSI | DMGL_PARAMS); | |
2f408ecb | 1899 | if (demangled_name != NULL) |
3456e70c | 1900 | return storage.set_malloc_ptr (std::move (demangled_name)); |
2f408ecb PA |
1901 | |
1902 | /* If we were given a non-mangled name, canonicalize it | |
1903 | according to the language (so far only for C++). */ | |
596dc4ad TT |
1904 | gdb::unique_xmalloc_ptr<char> canon = cp_canonicalize_string (name); |
1905 | if (canon != nullptr) | |
1906 | return storage.set_malloc_ptr (std::move (canon)); | |
729051e6 | 1907 | } |
6aecb9c2 JB |
1908 | else if (lang == language_d) |
1909 | { | |
3456e70c | 1910 | gdb::unique_xmalloc_ptr<char> demangled_name = d_demangle (name, 0); |
2f408ecb | 1911 | if (demangled_name != NULL) |
3456e70c | 1912 | return storage.set_malloc_ptr (std::move (demangled_name)); |
6aecb9c2 | 1913 | } |
a766d390 DE |
1914 | else if (lang == language_go) |
1915 | { | |
3456e70c | 1916 | gdb::unique_xmalloc_ptr<char> demangled_name |
82fc57fd | 1917 | = language_def (language_go)->demangle_symbol (name, 0); |
2f408ecb | 1918 | if (demangled_name != NULL) |
3456e70c | 1919 | return storage.set_malloc_ptr (std::move (demangled_name)); |
a766d390 | 1920 | } |
729051e6 | 1921 | |
2f408ecb | 1922 | return name; |
f8eba3c6 TT |
1923 | } |
1924 | ||
5ffa0793 PA |
1925 | /* See symtab.h. */ |
1926 | ||
1927 | unsigned int | |
1928 | search_name_hash (enum language language, const char *search_name) | |
1929 | { | |
fb8006fd | 1930 | return language_def (language)->search_name_hash (search_name); |
5ffa0793 PA |
1931 | } |
1932 | ||
cf901d3b | 1933 | /* See symtab.h. |
f8eba3c6 | 1934 | |
cf901d3b | 1935 | This function (or rather its subordinates) have a bunch of loops and |
7e082072 DE |
1936 | it would seem to be attractive to put in some QUIT's (though I'm not really |
1937 | sure whether it can run long enough to be really important). But there | |
f8eba3c6 | 1938 | are a few calls for which it would appear to be bad news to quit |
7e082072 | 1939 | out of here: e.g., find_proc_desc in alpha-mdebug-tdep.c. (Note |
f8eba3c6 TT |
1940 | that there is C++ code below which can error(), but that probably |
1941 | doesn't affect these calls since they are looking for a known | |
1942 | variable and thus can probably assume it will never hit the C++ | |
1943 | code). */ | |
1944 | ||
d12307c1 | 1945 | struct block_symbol |
f8eba3c6 TT |
1946 | lookup_symbol_in_language (const char *name, const struct block *block, |
1947 | const domain_enum domain, enum language lang, | |
1993b719 | 1948 | struct field_of_this_result *is_a_field_of_this) |
f8eba3c6 | 1949 | { |
2f408ecb PA |
1950 | demangle_result_storage storage; |
1951 | const char *modified_name = demangle_for_lookup (name, lang, storage); | |
f8eba3c6 | 1952 | |
de63c46b PA |
1953 | return lookup_symbol_aux (modified_name, |
1954 | symbol_name_match_type::FULL, | |
1955 | block, domain, lang, | |
2f408ecb | 1956 | is_a_field_of_this); |
fba7f19c EZ |
1957 | } |
1958 | ||
cf901d3b | 1959 | /* See symtab.h. */ |
53c5240f | 1960 | |
d12307c1 | 1961 | struct block_symbol |
53c5240f | 1962 | lookup_symbol (const char *name, const struct block *block, |
1993b719 TT |
1963 | domain_enum domain, |
1964 | struct field_of_this_result *is_a_field_of_this) | |
53c5240f PA |
1965 | { |
1966 | return lookup_symbol_in_language (name, block, domain, | |
1967 | current_language->la_language, | |
2570f2b7 | 1968 | is_a_field_of_this); |
53c5240f PA |
1969 | } |
1970 | ||
cf901d3b | 1971 | /* See symtab.h. */ |
66a17cb6 | 1972 | |
de63c46b PA |
1973 | struct block_symbol |
1974 | lookup_symbol_search_name (const char *search_name, const struct block *block, | |
1975 | domain_enum domain) | |
1976 | { | |
1977 | return lookup_symbol_aux (search_name, symbol_name_match_type::SEARCH_NAME, | |
1978 | block, domain, language_asm, NULL); | |
1979 | } | |
1980 | ||
1981 | /* See symtab.h. */ | |
1982 | ||
d12307c1 | 1983 | struct block_symbol |
66a17cb6 TT |
1984 | lookup_language_this (const struct language_defn *lang, |
1985 | const struct block *block) | |
1986 | { | |
5bae7c4e | 1987 | if (lang->name_of_this () == NULL || block == NULL) |
6640a367 | 1988 | return {}; |
66a17cb6 | 1989 | |
cc485e62 DE |
1990 | if (symbol_lookup_debug > 1) |
1991 | { | |
d6bc0792 | 1992 | struct objfile *objfile = block_objfile (block); |
cc485e62 DE |
1993 | |
1994 | fprintf_unfiltered (gdb_stdlog, | |
1995 | "lookup_language_this (%s, %s (objfile %s))", | |
6f7664a9 | 1996 | lang->name (), host_address_to_string (block), |
cc485e62 DE |
1997 | objfile_debug_name (objfile)); |
1998 | } | |
1999 | ||
03de6823 | 2000 | while (block) |
66a17cb6 TT |
2001 | { |
2002 | struct symbol *sym; | |
2003 | ||
5bae7c4e | 2004 | sym = block_lookup_symbol (block, lang->name_of_this (), |
de63c46b PA |
2005 | symbol_name_match_type::SEARCH_NAME, |
2006 | VAR_DOMAIN); | |
66a17cb6 | 2007 | if (sym != NULL) |
f149aabd | 2008 | { |
cc485e62 DE |
2009 | if (symbol_lookup_debug > 1) |
2010 | { | |
2011 | fprintf_unfiltered (gdb_stdlog, " = %s (%s, block %s)\n", | |
987012b8 | 2012 | sym->print_name (), |
cc485e62 DE |
2013 | host_address_to_string (sym), |
2014 | host_address_to_string (block)); | |
2015 | } | |
d12307c1 | 2016 | return (struct block_symbol) {sym, block}; |
f149aabd | 2017 | } |
66a17cb6 | 2018 | if (BLOCK_FUNCTION (block)) |
03de6823 | 2019 | break; |
66a17cb6 TT |
2020 | block = BLOCK_SUPERBLOCK (block); |
2021 | } | |
03de6823 | 2022 | |
cc485e62 DE |
2023 | if (symbol_lookup_debug > 1) |
2024 | fprintf_unfiltered (gdb_stdlog, " = NULL\n"); | |
6640a367 | 2025 | return {}; |
66a17cb6 TT |
2026 | } |
2027 | ||
2dc3df72 TT |
2028 | /* Given TYPE, a structure/union, |
2029 | return 1 if the component named NAME from the ultimate target | |
2030 | structure/union is defined, otherwise, return 0. */ | |
2031 | ||
2032 | static int | |
1993b719 TT |
2033 | check_field (struct type *type, const char *name, |
2034 | struct field_of_this_result *is_a_field_of_this) | |
2dc3df72 TT |
2035 | { |
2036 | int i; | |
2037 | ||
2038 | /* The type may be a stub. */ | |
f168693b | 2039 | type = check_typedef (type); |
2dc3df72 | 2040 | |
1f704f76 | 2041 | for (i = type->num_fields () - 1; i >= TYPE_N_BASECLASSES (type); i--) |
2dc3df72 | 2042 | { |
33d16dd9 | 2043 | const char *t_field_name = type->field (i).name (); |
2dc3df72 TT |
2044 | |
2045 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) | |
1993b719 TT |
2046 | { |
2047 | is_a_field_of_this->type = type; | |
ceacbf6e | 2048 | is_a_field_of_this->field = &type->field (i); |
1993b719 TT |
2049 | return 1; |
2050 | } | |
2dc3df72 TT |
2051 | } |
2052 | ||
2053 | /* C++: If it was not found as a data field, then try to return it | |
2054 | as a pointer to a method. */ | |
2055 | ||
2056 | for (i = TYPE_NFN_FIELDS (type) - 1; i >= 0; --i) | |
2057 | { | |
2058 | if (strcmp_iw (TYPE_FN_FIELDLIST_NAME (type, i), name) == 0) | |
1993b719 TT |
2059 | { |
2060 | is_a_field_of_this->type = type; | |
2061 | is_a_field_of_this->fn_field = &TYPE_FN_FIELDLIST (type, i); | |
2062 | return 1; | |
2063 | } | |
2dc3df72 TT |
2064 | } |
2065 | ||
2066 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1993b719 | 2067 | if (check_field (TYPE_BASECLASS (type, i), name, is_a_field_of_this)) |
2dc3df72 TT |
2068 | return 1; |
2069 | ||
2070 | return 0; | |
2071 | } | |
2072 | ||
53c5240f | 2073 | /* Behave like lookup_symbol except that NAME is the natural name |
7e082072 | 2074 | (e.g., demangled name) of the symbol that we're looking for. */ |
5ad1c190 | 2075 | |
d12307c1 | 2076 | static struct block_symbol |
de63c46b PA |
2077 | lookup_symbol_aux (const char *name, symbol_name_match_type match_type, |
2078 | const struct block *block, | |
94af9270 | 2079 | const domain_enum domain, enum language language, |
1993b719 | 2080 | struct field_of_this_result *is_a_field_of_this) |
fba7f19c | 2081 | { |
d12307c1 | 2082 | struct block_symbol result; |
53c5240f | 2083 | const struct language_defn *langdef; |
406bc4de | 2084 | |
cc485e62 DE |
2085 | if (symbol_lookup_debug) |
2086 | { | |
d6bc0792 TT |
2087 | struct objfile *objfile = (block == nullptr |
2088 | ? nullptr : block_objfile (block)); | |
cc485e62 DE |
2089 | |
2090 | fprintf_unfiltered (gdb_stdlog, | |
2091 | "lookup_symbol_aux (%s, %s (objfile %s), %s, %s)\n", | |
2092 | name, host_address_to_string (block), | |
2093 | objfile != NULL | |
2094 | ? objfile_debug_name (objfile) : "NULL", | |
2095 | domain_name (domain), language_str (language)); | |
2096 | } | |
2097 | ||
9a146a11 EZ |
2098 | /* Make sure we do something sensible with is_a_field_of_this, since |
2099 | the callers that set this parameter to some non-null value will | |
1993b719 TT |
2100 | certainly use it later. If we don't set it, the contents of |
2101 | is_a_field_of_this are undefined. */ | |
9a146a11 | 2102 | if (is_a_field_of_this != NULL) |
1993b719 | 2103 | memset (is_a_field_of_this, 0, sizeof (*is_a_field_of_this)); |
9a146a11 | 2104 | |
e4051eeb DC |
2105 | /* Search specified block and its superiors. Don't search |
2106 | STATIC_BLOCK or GLOBAL_BLOCK. */ | |
c906108c | 2107 | |
de63c46b | 2108 | result = lookup_local_symbol (name, match_type, block, domain, language); |
d12307c1 | 2109 | if (result.symbol != NULL) |
cc485e62 DE |
2110 | { |
2111 | if (symbol_lookup_debug) | |
2112 | { | |
2113 | fprintf_unfiltered (gdb_stdlog, "lookup_symbol_aux (...) = %s\n", | |
d12307c1 | 2114 | host_address_to_string (result.symbol)); |
cc485e62 | 2115 | } |
d12307c1 | 2116 | return result; |
cc485e62 | 2117 | } |
c906108c | 2118 | |
53c5240f | 2119 | /* If requested to do so by the caller and if appropriate for LANGUAGE, |
13387711 | 2120 | check to see if NAME is a field of `this'. */ |
53c5240f PA |
2121 | |
2122 | langdef = language_def (language); | |
5f9a71c3 | 2123 | |
6592e36f TT |
2124 | /* Don't do this check if we are searching for a struct. It will |
2125 | not be found by check_field, but will be found by other | |
2126 | means. */ | |
2127 | if (is_a_field_of_this != NULL && domain != STRUCT_DOMAIN) | |
c906108c | 2128 | { |
d12307c1 | 2129 | result = lookup_language_this (langdef, block); |
2b2d9e11 | 2130 | |
d12307c1 | 2131 | if (result.symbol) |
c906108c | 2132 | { |
d12307c1 | 2133 | struct type *t = result.symbol->type; |
9af17804 | 2134 | |
2b2d9e11 VP |
2135 | /* I'm not really sure that type of this can ever |
2136 | be typedefed; just be safe. */ | |
f168693b | 2137 | t = check_typedef (t); |
809f3be1 | 2138 | if (t->is_pointer_or_reference ()) |
2b2d9e11 | 2139 | t = TYPE_TARGET_TYPE (t); |
9af17804 | 2140 | |
78134374 SM |
2141 | if (t->code () != TYPE_CODE_STRUCT |
2142 | && t->code () != TYPE_CODE_UNION) | |
9af17804 | 2143 | error (_("Internal error: `%s' is not an aggregate"), |
5bae7c4e | 2144 | langdef->name_of_this ()); |
9af17804 | 2145 | |
1993b719 | 2146 | if (check_field (t, name, is_a_field_of_this)) |
cc485e62 DE |
2147 | { |
2148 | if (symbol_lookup_debug) | |
2149 | { | |
2150 | fprintf_unfiltered (gdb_stdlog, | |
2151 | "lookup_symbol_aux (...) = NULL\n"); | |
2152 | } | |
6640a367 | 2153 | return {}; |
cc485e62 | 2154 | } |
c906108c SS |
2155 | } |
2156 | } | |
2157 | ||
53c5240f | 2158 | /* Now do whatever is appropriate for LANGUAGE to look |
774b6a14 | 2159 | up static and global variables. */ |
c906108c | 2160 | |
a78a19b1 | 2161 | result = langdef->lookup_symbol_nonlocal (name, block, domain); |
d12307c1 | 2162 | if (result.symbol != NULL) |
cc485e62 DE |
2163 | { |
2164 | if (symbol_lookup_debug) | |
2165 | { | |
2166 | fprintf_unfiltered (gdb_stdlog, "lookup_symbol_aux (...) = %s\n", | |
d12307c1 | 2167 | host_address_to_string (result.symbol)); |
cc485e62 | 2168 | } |
d12307c1 | 2169 | return result; |
cc485e62 | 2170 | } |
c906108c | 2171 | |
774b6a14 TT |
2172 | /* Now search all static file-level symbols. Not strictly correct, |
2173 | but more useful than an error. */ | |
41f62f39 | 2174 | |
d12307c1 | 2175 | result = lookup_static_symbol (name, domain); |
cc485e62 DE |
2176 | if (symbol_lookup_debug) |
2177 | { | |
2178 | fprintf_unfiltered (gdb_stdlog, "lookup_symbol_aux (...) = %s\n", | |
d12307c1 PMR |
2179 | result.symbol != NULL |
2180 | ? host_address_to_string (result.symbol) | |
2181 | : "NULL"); | |
cc485e62 | 2182 | } |
d12307c1 | 2183 | return result; |
41f62f39 JK |
2184 | } |
2185 | ||
e4051eeb | 2186 | /* Check to see if the symbol is defined in BLOCK or its superiors. |
89a9d1b1 | 2187 | Don't search STATIC_BLOCK or GLOBAL_BLOCK. */ |
8155455b | 2188 | |
d12307c1 | 2189 | static struct block_symbol |
de63c46b PA |
2190 | lookup_local_symbol (const char *name, |
2191 | symbol_name_match_type match_type, | |
2192 | const struct block *block, | |
74016e12 DE |
2193 | const domain_enum domain, |
2194 | enum language language) | |
8155455b DC |
2195 | { |
2196 | struct symbol *sym; | |
89a9d1b1 | 2197 | const struct block *static_block = block_static_block (block); |
13387711 SW |
2198 | const char *scope = block_scope (block); |
2199 | ||
e4051eeb DC |
2200 | /* Check if either no block is specified or it's a global block. */ |
2201 | ||
89a9d1b1 | 2202 | if (static_block == NULL) |
6640a367 | 2203 | return {}; |
e4051eeb | 2204 | |
89a9d1b1 | 2205 | while (block != static_block) |
f61e8913 | 2206 | { |
de63c46b | 2207 | sym = lookup_symbol_in_block (name, match_type, block, domain); |
f61e8913 | 2208 | if (sym != NULL) |
d12307c1 | 2209 | return (struct block_symbol) {sym, block}; |
edb3359d | 2210 | |
f55ee35c | 2211 | if (language == language_cplus || language == language_fortran) |
dda83cd7 SM |
2212 | { |
2213 | struct block_symbol blocksym | |
d12307c1 PMR |
2214 | = cp_lookup_symbol_imports_or_template (scope, name, block, |
2215 | domain); | |
2216 | ||
dda83cd7 SM |
2217 | if (blocksym.symbol != NULL) |
2218 | return blocksym; | |
2219 | } | |
13387711 | 2220 | |
edb3359d DJ |
2221 | if (BLOCK_FUNCTION (block) != NULL && block_inlined_p (block)) |
2222 | break; | |
f61e8913 DC |
2223 | block = BLOCK_SUPERBLOCK (block); |
2224 | } | |
2225 | ||
3aee438b | 2226 | /* We've reached the end of the function without finding a result. */ |
e4051eeb | 2227 | |
6640a367 | 2228 | return {}; |
f61e8913 DC |
2229 | } |
2230 | ||
cf901d3b | 2231 | /* See symtab.h. */ |
3a40aaa0 | 2232 | |
5f9a71c3 | 2233 | struct symbol * |
de63c46b PA |
2234 | lookup_symbol_in_block (const char *name, symbol_name_match_type match_type, |
2235 | const struct block *block, | |
d1a2d36d | 2236 | const domain_enum domain) |
f61e8913 DC |
2237 | { |
2238 | struct symbol *sym; | |
f61e8913 | 2239 | |
cc485e62 DE |
2240 | if (symbol_lookup_debug > 1) |
2241 | { | |
d6bc0792 TT |
2242 | struct objfile *objfile = (block == nullptr |
2243 | ? nullptr : block_objfile (block)); | |
cc485e62 DE |
2244 | |
2245 | fprintf_unfiltered (gdb_stdlog, | |
2246 | "lookup_symbol_in_block (%s, %s (objfile %s), %s)", | |
2247 | name, host_address_to_string (block), | |
2248 | objfile_debug_name (objfile), | |
2249 | domain_name (domain)); | |
2250 | } | |
2251 | ||
de63c46b | 2252 | sym = block_lookup_symbol (block, name, match_type, domain); |
f61e8913 | 2253 | if (sym) |
8155455b | 2254 | { |
cc485e62 DE |
2255 | if (symbol_lookup_debug > 1) |
2256 | { | |
2257 | fprintf_unfiltered (gdb_stdlog, " = %s\n", | |
2258 | host_address_to_string (sym)); | |
2259 | } | |
21b556f4 | 2260 | return fixup_symbol_section (sym, NULL); |
8155455b DC |
2261 | } |
2262 | ||
cc485e62 DE |
2263 | if (symbol_lookup_debug > 1) |
2264 | fprintf_unfiltered (gdb_stdlog, " = NULL\n"); | |
8155455b DC |
2265 | return NULL; |
2266 | } | |
2267 | ||
cf901d3b | 2268 | /* See symtab.h. */ |
3a40aaa0 | 2269 | |
d12307c1 | 2270 | struct block_symbol |
efad9b6a | 2271 | lookup_global_symbol_from_objfile (struct objfile *main_objfile, |
442853af | 2272 | enum block_enum block_index, |
3a40aaa0 | 2273 | const char *name, |
21b556f4 | 2274 | const domain_enum domain) |
3a40aaa0 | 2275 | { |
442853af CB |
2276 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2277 | ||
bde09ab7 | 2278 | for (objfile *objfile : main_objfile->separate_debug_objfiles ()) |
15d123c9 | 2279 | { |
d12307c1 | 2280 | struct block_symbol result |
dda83cd7 | 2281 | = lookup_symbol_in_objfile (objfile, block_index, name, domain); |
15d123c9 | 2282 | |
442853af | 2283 | if (result.symbol != nullptr) |
d12307c1 | 2284 | return result; |
15d123c9 | 2285 | } |
56e3f43c | 2286 | |
6640a367 | 2287 | return {}; |
3a40aaa0 UW |
2288 | } |
2289 | ||
19630284 JB |
2290 | /* Check to see if the symbol is defined in one of the OBJFILE's |
2291 | symtabs. BLOCK_INDEX should be either GLOBAL_BLOCK or STATIC_BLOCK, | |
8155455b DC |
2292 | depending on whether or not we want to search global symbols or |
2293 | static symbols. */ | |
2294 | ||
d12307c1 | 2295 | static struct block_symbol |
c32e6a04 CB |
2296 | lookup_symbol_in_objfile_symtabs (struct objfile *objfile, |
2297 | enum block_enum block_index, const char *name, | |
2298 | const domain_enum domain) | |
19630284 | 2299 | { |
ba715d7f JK |
2300 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2301 | ||
cc485e62 DE |
2302 | if (symbol_lookup_debug > 1) |
2303 | { | |
2304 | fprintf_unfiltered (gdb_stdlog, | |
2305 | "lookup_symbol_in_objfile_symtabs (%s, %s, %s, %s)", | |
2306 | objfile_debug_name (objfile), | |
2307 | block_index == GLOBAL_BLOCK | |
2308 | ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
2309 | name, domain_name (domain)); | |
2310 | } | |
2311 | ||
de82891c TV |
2312 | struct block_symbol other; |
2313 | other.symbol = NULL; | |
b669c953 | 2314 | for (compunit_symtab *cust : objfile->compunits ()) |
a743abeb | 2315 | { |
43f3e411 DE |
2316 | const struct blockvector *bv; |
2317 | const struct block *block; | |
d12307c1 | 2318 | struct block_symbol result; |
43f3e411 | 2319 | |
af39c5c8 | 2320 | bv = cust->blockvector (); |
a743abeb | 2321 | block = BLOCKVECTOR_BLOCK (bv, block_index); |
d12307c1 PMR |
2322 | result.symbol = block_lookup_symbol_primary (block, name, domain); |
2323 | result.block = block; | |
de82891c TV |
2324 | if (result.symbol == NULL) |
2325 | continue; | |
2326 | if (best_symbol (result.symbol, domain)) | |
a743abeb | 2327 | { |
de82891c TV |
2328 | other = result; |
2329 | break; | |
2330 | } | |
2331 | if (symbol_matches_domain (result.symbol->language (), | |
2332 | SYMBOL_DOMAIN (result.symbol), domain)) | |
2333 | { | |
2334 | struct symbol *better | |
2335 | = better_symbol (other.symbol, result.symbol, domain); | |
2336 | if (better != other.symbol) | |
cc485e62 | 2337 | { |
de82891c TV |
2338 | other.symbol = better; |
2339 | other.block = block; | |
cc485e62 | 2340 | } |
de82891c TV |
2341 | } |
2342 | } | |
d12307c1 | 2343 | |
de82891c TV |
2344 | if (other.symbol != NULL) |
2345 | { | |
2346 | if (symbol_lookup_debug > 1) | |
2347 | { | |
2348 | fprintf_unfiltered (gdb_stdlog, " = %s (block %s)\n", | |
2349 | host_address_to_string (other.symbol), | |
2350 | host_address_to_string (other.block)); | |
a743abeb | 2351 | } |
de82891c TV |
2352 | other.symbol = fixup_symbol_section (other.symbol, objfile); |
2353 | return other; | |
a743abeb | 2354 | } |
19630284 | 2355 | |
cc485e62 DE |
2356 | if (symbol_lookup_debug > 1) |
2357 | fprintf_unfiltered (gdb_stdlog, " = NULL\n"); | |
6640a367 | 2358 | return {}; |
19630284 JB |
2359 | } |
2360 | ||
74016e12 | 2361 | /* Wrapper around lookup_symbol_in_objfile_symtabs for search_symbols. |
422d65e7 | 2362 | Look up LINKAGE_NAME in DOMAIN in the global and static blocks of OBJFILE |
01465b56 DE |
2363 | and all associated separate debug objfiles. |
2364 | ||
2365 | Normally we only look in OBJFILE, and not any separate debug objfiles | |
2366 | because the outer loop will cause them to be searched too. This case is | |
2367 | different. Here we're called from search_symbols where it will only | |
6471e7d2 | 2368 | call us for the objfile that contains a matching minsym. */ |
422d65e7 | 2369 | |
d12307c1 | 2370 | static struct block_symbol |
422d65e7 DE |
2371 | lookup_symbol_in_objfile_from_linkage_name (struct objfile *objfile, |
2372 | const char *linkage_name, | |
2373 | domain_enum domain) | |
2374 | { | |
2375 | enum language lang = current_language->la_language; | |
e9ad22ee | 2376 | struct objfile *main_objfile; |
422d65e7 | 2377 | |
2f408ecb PA |
2378 | demangle_result_storage storage; |
2379 | const char *modified_name = demangle_for_lookup (linkage_name, lang, storage); | |
2380 | ||
422d65e7 DE |
2381 | if (objfile->separate_debug_objfile_backlink) |
2382 | main_objfile = objfile->separate_debug_objfile_backlink; | |
2383 | else | |
2384 | main_objfile = objfile; | |
2385 | ||
bde09ab7 | 2386 | for (::objfile *cur_objfile : main_objfile->separate_debug_objfiles ()) |
422d65e7 | 2387 | { |
d12307c1 PMR |
2388 | struct block_symbol result; |
2389 | ||
2390 | result = lookup_symbol_in_objfile_symtabs (cur_objfile, GLOBAL_BLOCK, | |
2391 | modified_name, domain); | |
2392 | if (result.symbol == NULL) | |
2393 | result = lookup_symbol_in_objfile_symtabs (cur_objfile, STATIC_BLOCK, | |
2394 | modified_name, domain); | |
2395 | if (result.symbol != NULL) | |
2f408ecb | 2396 | return result; |
422d65e7 DE |
2397 | } |
2398 | ||
6640a367 | 2399 | return {}; |
422d65e7 DE |
2400 | } |
2401 | ||
08c23b0d TT |
2402 | /* A helper function that throws an exception when a symbol was found |
2403 | in a psymtab but not in a symtab. */ | |
2404 | ||
2405 | static void ATTRIBUTE_NORETURN | |
ddbcedf5 | 2406 | error_in_psymtab_expansion (enum block_enum block_index, const char *name, |
43f3e411 | 2407 | struct compunit_symtab *cust) |
08c23b0d TT |
2408 | { |
2409 | error (_("\ | |
2410 | Internal: %s symbol `%s' found in %s psymtab but not in symtab.\n\ | |
2411 | %s may be an inlined function, or may be a template function\n \ | |
2412 | (if a template, try specifying an instantiation: %s<type>)."), | |
f88cb4b6 | 2413 | block_index == GLOBAL_BLOCK ? "global" : "static", |
43f3e411 | 2414 | name, |
0b17a4f7 | 2415 | symtab_to_filename_for_display (cust->primary_filetab ()), |
43f3e411 | 2416 | name, name); |
08c23b0d TT |
2417 | } |
2418 | ||
74016e12 DE |
2419 | /* A helper function for various lookup routines that interfaces with |
2420 | the "quick" symbol table functions. */ | |
8155455b | 2421 | |
d12307c1 | 2422 | static struct block_symbol |
ddbcedf5 CB |
2423 | lookup_symbol_via_quick_fns (struct objfile *objfile, |
2424 | enum block_enum block_index, const char *name, | |
2425 | const domain_enum domain) | |
8155455b | 2426 | { |
43f3e411 | 2427 | struct compunit_symtab *cust; |
346d1dfe | 2428 | const struct blockvector *bv; |
8155455b | 2429 | const struct block *block; |
d12307c1 | 2430 | struct block_symbol result; |
8155455b | 2431 | |
cc485e62 DE |
2432 | if (symbol_lookup_debug > 1) |
2433 | { | |
2434 | fprintf_unfiltered (gdb_stdlog, | |
2435 | "lookup_symbol_via_quick_fns (%s, %s, %s, %s)\n", | |
2436 | objfile_debug_name (objfile), | |
2437 | block_index == GLOBAL_BLOCK | |
2438 | ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
2439 | name, domain_name (domain)); | |
2440 | } | |
2441 | ||
4d080b46 | 2442 | cust = objfile->lookup_symbol (block_index, name, domain); |
43f3e411 | 2443 | if (cust == NULL) |
cc485e62 DE |
2444 | { |
2445 | if (symbol_lookup_debug > 1) | |
2446 | { | |
2447 | fprintf_unfiltered (gdb_stdlog, | |
2448 | "lookup_symbol_via_quick_fns (...) = NULL\n"); | |
2449 | } | |
6640a367 | 2450 | return {}; |
cc485e62 | 2451 | } |
8155455b | 2452 | |
af39c5c8 | 2453 | bv = cust->blockvector (); |
f88cb4b6 | 2454 | block = BLOCKVECTOR_BLOCK (bv, block_index); |
de63c46b PA |
2455 | result.symbol = block_lookup_symbol (block, name, |
2456 | symbol_name_match_type::FULL, domain); | |
d12307c1 | 2457 | if (result.symbol == NULL) |
43f3e411 | 2458 | error_in_psymtab_expansion (block_index, name, cust); |
cc485e62 DE |
2459 | |
2460 | if (symbol_lookup_debug > 1) | |
2461 | { | |
2462 | fprintf_unfiltered (gdb_stdlog, | |
2463 | "lookup_symbol_via_quick_fns (...) = %s (block %s)\n", | |
d12307c1 | 2464 | host_address_to_string (result.symbol), |
cc485e62 DE |
2465 | host_address_to_string (block)); |
2466 | } | |
2467 | ||
d12307c1 PMR |
2468 | result.symbol = fixup_symbol_section (result.symbol, objfile); |
2469 | result.block = block; | |
2470 | return result; | |
8155455b DC |
2471 | } |
2472 | ||
a78a19b1 | 2473 | /* See language.h. */ |
5f9a71c3 | 2474 | |
d12307c1 | 2475 | struct block_symbol |
a78a19b1 AB |
2476 | language_defn::lookup_symbol_nonlocal (const char *name, |
2477 | const struct block *block, | |
2478 | const domain_enum domain) const | |
5f9a71c3 | 2479 | { |
d12307c1 | 2480 | struct block_symbol result; |
5f9a71c3 | 2481 | |
d9060ba6 DE |
2482 | /* NOTE: dje/2014-10-26: The lookup in all objfiles search could skip |
2483 | the current objfile. Searching the current objfile first is useful | |
2484 | for both matching user expectations as well as performance. */ | |
2485 | ||
d12307c1 PMR |
2486 | result = lookup_symbol_in_static_block (name, block, domain); |
2487 | if (result.symbol != NULL) | |
2488 | return result; | |
5f9a71c3 | 2489 | |
1994afbf DE |
2490 | /* If we didn't find a definition for a builtin type in the static block, |
2491 | search for it now. This is actually the right thing to do and can be | |
2492 | a massive performance win. E.g., when debugging a program with lots of | |
2493 | shared libraries we could search all of them only to find out the | |
2494 | builtin type isn't defined in any of them. This is common for types | |
2495 | like "void". */ | |
2496 | if (domain == VAR_DOMAIN) | |
2497 | { | |
2498 | struct gdbarch *gdbarch; | |
2499 | ||
2500 | if (block == NULL) | |
2501 | gdbarch = target_gdbarch (); | |
2502 | else | |
2503 | gdbarch = block_gdbarch (block); | |
a78a19b1 | 2504 | result.symbol = language_lookup_primitive_type_as_symbol (this, |
d12307c1 PMR |
2505 | gdbarch, name); |
2506 | result.block = NULL; | |
2507 | if (result.symbol != NULL) | |
2508 | return result; | |
1994afbf DE |
2509 | } |
2510 | ||
08724ab7 | 2511 | return lookup_global_symbol (name, block, domain); |
5f9a71c3 DC |
2512 | } |
2513 | ||
cf901d3b | 2514 | /* See symtab.h. */ |
5f9a71c3 | 2515 | |
d12307c1 | 2516 | struct block_symbol |
24d864bb DE |
2517 | lookup_symbol_in_static_block (const char *name, |
2518 | const struct block *block, | |
2519 | const domain_enum domain) | |
5f9a71c3 DC |
2520 | { |
2521 | const struct block *static_block = block_static_block (block); | |
cc485e62 | 2522 | struct symbol *sym; |
5f9a71c3 | 2523 | |
cc485e62 | 2524 | if (static_block == NULL) |
6640a367 | 2525 | return {}; |
cc485e62 DE |
2526 | |
2527 | if (symbol_lookup_debug) | |
2528 | { | |
d6bc0792 TT |
2529 | struct objfile *objfile = (block == nullptr |
2530 | ? nullptr : block_objfile (block)); | |
cc485e62 DE |
2531 | |
2532 | fprintf_unfiltered (gdb_stdlog, | |
2533 | "lookup_symbol_in_static_block (%s, %s (objfile %s)," | |
2534 | " %s)\n", | |
2535 | name, | |
2536 | host_address_to_string (block), | |
2537 | objfile_debug_name (objfile), | |
2538 | domain_name (domain)); | |
2539 | } | |
2540 | ||
de63c46b PA |
2541 | sym = lookup_symbol_in_block (name, |
2542 | symbol_name_match_type::FULL, | |
2543 | static_block, domain); | |
cc485e62 DE |
2544 | if (symbol_lookup_debug) |
2545 | { | |
2546 | fprintf_unfiltered (gdb_stdlog, | |
2547 | "lookup_symbol_in_static_block (...) = %s\n", | |
2548 | sym != NULL ? host_address_to_string (sym) : "NULL"); | |
2549 | } | |
d12307c1 | 2550 | return (struct block_symbol) {sym, static_block}; |
5f9a71c3 DC |
2551 | } |
2552 | ||
af3768e9 DE |
2553 | /* Perform the standard symbol lookup of NAME in OBJFILE: |
2554 | 1) First search expanded symtabs, and if not found | |
2555 | 2) Search the "quick" symtabs (partial or .gdb_index). | |
2556 | BLOCK_INDEX is one of GLOBAL_BLOCK or STATIC_BLOCK. */ | |
2557 | ||
d12307c1 | 2558 | static struct block_symbol |
c32e6a04 | 2559 | lookup_symbol_in_objfile (struct objfile *objfile, enum block_enum block_index, |
af3768e9 DE |
2560 | const char *name, const domain_enum domain) |
2561 | { | |
d12307c1 | 2562 | struct block_symbol result; |
af3768e9 | 2563 | |
c32e6a04 CB |
2564 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2565 | ||
cc485e62 DE |
2566 | if (symbol_lookup_debug) |
2567 | { | |
2568 | fprintf_unfiltered (gdb_stdlog, | |
2569 | "lookup_symbol_in_objfile (%s, %s, %s, %s)\n", | |
2570 | objfile_debug_name (objfile), | |
2571 | block_index == GLOBAL_BLOCK | |
2572 | ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
2573 | name, domain_name (domain)); | |
2574 | } | |
2575 | ||
af3768e9 DE |
2576 | result = lookup_symbol_in_objfile_symtabs (objfile, block_index, |
2577 | name, domain); | |
d12307c1 | 2578 | if (result.symbol != NULL) |
af3768e9 | 2579 | { |
cc485e62 DE |
2580 | if (symbol_lookup_debug) |
2581 | { | |
2582 | fprintf_unfiltered (gdb_stdlog, | |
2583 | "lookup_symbol_in_objfile (...) = %s" | |
2584 | " (in symtabs)\n", | |
d12307c1 | 2585 | host_address_to_string (result.symbol)); |
cc485e62 DE |
2586 | } |
2587 | return result; | |
af3768e9 DE |
2588 | } |
2589 | ||
cc485e62 DE |
2590 | result = lookup_symbol_via_quick_fns (objfile, block_index, |
2591 | name, domain); | |
2592 | if (symbol_lookup_debug) | |
2593 | { | |
2594 | fprintf_unfiltered (gdb_stdlog, | |
2595 | "lookup_symbol_in_objfile (...) = %s%s\n", | |
d12307c1 PMR |
2596 | result.symbol != NULL |
2597 | ? host_address_to_string (result.symbol) | |
cc485e62 | 2598 | : "NULL", |
d12307c1 | 2599 | result.symbol != NULL ? " (via quick fns)" : ""); |
cc485e62 | 2600 | } |
af3768e9 DE |
2601 | return result; |
2602 | } | |
2603 | ||
d3214198 TV |
2604 | /* Find the language for partial symbol with NAME. */ |
2605 | ||
2606 | static enum language | |
2607 | find_quick_global_symbol_language (const char *name, const domain_enum domain) | |
2608 | { | |
d3214198 TV |
2609 | for (objfile *objfile : current_program_space->objfiles ()) |
2610 | { | |
2611 | bool symbol_found_p; | |
2612 | enum language lang | |
4d080b46 TT |
2613 | = objfile->lookup_global_symbol_language (name, domain, &symbol_found_p); |
2614 | if (symbol_found_p) | |
2615 | return lang; | |
d3214198 TV |
2616 | } |
2617 | ||
2618 | return language_unknown; | |
2619 | } | |
2620 | ||
19630284 JB |
2621 | /* Private data to be used with lookup_symbol_global_iterator_cb. */ |
2622 | ||
9aa55206 | 2623 | struct global_or_static_sym_lookup_data |
19630284 JB |
2624 | { |
2625 | /* The name of the symbol we are searching for. */ | |
2626 | const char *name; | |
2627 | ||
2628 | /* The domain to use for our search. */ | |
2629 | domain_enum domain; | |
2630 | ||
9aa55206 CB |
2631 | /* The block index in which to search. */ |
2632 | enum block_enum block_index; | |
2633 | ||
19630284 | 2634 | /* The field where the callback should store the symbol if found. |
d12307c1 PMR |
2635 | It should be initialized to {NULL, NULL} before the search is started. */ |
2636 | struct block_symbol result; | |
19630284 JB |
2637 | }; |
2638 | ||
2639 | /* A callback function for gdbarch_iterate_over_objfiles_in_search_order. | |
9aa55206 CB |
2640 | It searches by name for a symbol in the block given by BLOCK_INDEX of the |
2641 | given OBJFILE. The arguments for the search are passed via CB_DATA, which | |
2642 | in reality is a pointer to struct global_or_static_sym_lookup_data. */ | |
19630284 JB |
2643 | |
2644 | static int | |
9aa55206 CB |
2645 | lookup_symbol_global_or_static_iterator_cb (struct objfile *objfile, |
2646 | void *cb_data) | |
19630284 | 2647 | { |
9aa55206 CB |
2648 | struct global_or_static_sym_lookup_data *data = |
2649 | (struct global_or_static_sym_lookup_data *) cb_data; | |
19630284 | 2650 | |
d12307c1 PMR |
2651 | gdb_assert (data->result.symbol == NULL |
2652 | && data->result.block == NULL); | |
19630284 | 2653 | |
9aa55206 | 2654 | data->result = lookup_symbol_in_objfile (objfile, data->block_index, |
af3768e9 | 2655 | data->name, data->domain); |
19630284 JB |
2656 | |
2657 | /* If we found a match, tell the iterator to stop. Otherwise, | |
2658 | keep going. */ | |
d12307c1 | 2659 | return (data->result.symbol != NULL); |
19630284 JB |
2660 | } |
2661 | ||
9aa55206 CB |
2662 | /* This function contains the common code of lookup_{global,static}_symbol. |
2663 | OBJFILE is only used if BLOCK_INDEX is GLOBAL_SCOPE, in which case it is | |
2664 | the objfile to start the lookup in. */ | |
5f9a71c3 | 2665 | |
9aa55206 CB |
2666 | static struct block_symbol |
2667 | lookup_global_or_static_symbol (const char *name, | |
2668 | enum block_enum block_index, | |
2669 | struct objfile *objfile, | |
2670 | const domain_enum domain) | |
5f9a71c3 | 2671 | { |
f57d2163 | 2672 | struct symbol_cache *cache = get_symbol_cache (current_program_space); |
d12307c1 | 2673 | struct block_symbol result; |
9aa55206 | 2674 | struct global_or_static_sym_lookup_data lookup_data; |
f57d2163 DE |
2675 | struct block_symbol_cache *bsc; |
2676 | struct symbol_cache_slot *slot; | |
b2fb95e0 | 2677 | |
9aa55206 CB |
2678 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2679 | gdb_assert (objfile == nullptr || block_index == GLOBAL_BLOCK); | |
f57d2163 DE |
2680 | |
2681 | /* First see if we can find the symbol in the cache. | |
2682 | This works because we use the current objfile to qualify the lookup. */ | |
9aa55206 | 2683 | result = symbol_cache_lookup (cache, objfile, block_index, name, domain, |
d12307c1 PMR |
2684 | &bsc, &slot); |
2685 | if (result.symbol != NULL) | |
f57d2163 | 2686 | { |
d12307c1 | 2687 | if (SYMBOL_LOOKUP_FAILED_P (result)) |
6640a367 | 2688 | return {}; |
d12307c1 | 2689 | return result; |
f57d2163 DE |
2690 | } |
2691 | ||
626ca2c0 | 2692 | /* Do a global search (of global blocks, heh). */ |
d12307c1 | 2693 | if (result.symbol == NULL) |
f57d2163 DE |
2694 | { |
2695 | memset (&lookup_data, 0, sizeof (lookup_data)); | |
2696 | lookup_data.name = name; | |
9aa55206 | 2697 | lookup_data.block_index = block_index; |
f57d2163 DE |
2698 | lookup_data.domain = domain; |
2699 | gdbarch_iterate_over_objfiles_in_search_order | |
08feed99 | 2700 | (objfile != NULL ? objfile->arch () : target_gdbarch (), |
9aa55206 | 2701 | lookup_symbol_global_or_static_iterator_cb, &lookup_data, objfile); |
d12307c1 | 2702 | result = lookup_data.result; |
f57d2163 | 2703 | } |
6a3ca067 | 2704 | |
d12307c1 PMR |
2705 | if (result.symbol != NULL) |
2706 | symbol_cache_mark_found (bsc, slot, objfile, result.symbol, result.block); | |
f57d2163 DE |
2707 | else |
2708 | symbol_cache_mark_not_found (bsc, slot, objfile, name, domain); | |
2709 | ||
d12307c1 | 2710 | return result; |
5f9a71c3 DC |
2711 | } |
2712 | ||
9aa55206 CB |
2713 | /* See symtab.h. */ |
2714 | ||
2715 | struct block_symbol | |
2716 | lookup_static_symbol (const char *name, const domain_enum domain) | |
2717 | { | |
2718 | return lookup_global_or_static_symbol (name, STATIC_BLOCK, nullptr, domain); | |
2719 | } | |
2720 | ||
2721 | /* See symtab.h. */ | |
2722 | ||
2723 | struct block_symbol | |
2724 | lookup_global_symbol (const char *name, | |
2725 | const struct block *block, | |
2726 | const domain_enum domain) | |
2727 | { | |
d3d32391 AB |
2728 | /* If a block was passed in, we want to search the corresponding |
2729 | global block first. This yields "more expected" behavior, and is | |
2730 | needed to support 'FILENAME'::VARIABLE lookups. */ | |
2731 | const struct block *global_block = block_global_block (block); | |
70bc38f5 | 2732 | symbol *sym = NULL; |
d3d32391 AB |
2733 | if (global_block != nullptr) |
2734 | { | |
70bc38f5 TV |
2735 | sym = lookup_symbol_in_block (name, |
2736 | symbol_name_match_type::FULL, | |
2737 | global_block, domain); | |
2738 | if (sym != NULL && best_symbol (sym, domain)) | |
d3d32391 AB |
2739 | return { sym, global_block }; |
2740 | } | |
2741 | ||
d6bc0792 TT |
2742 | struct objfile *objfile = nullptr; |
2743 | if (block != nullptr) | |
2744 | { | |
2745 | objfile = block_objfile (block); | |
2746 | if (objfile->separate_debug_objfile_backlink != nullptr) | |
2747 | objfile = objfile->separate_debug_objfile_backlink; | |
2748 | } | |
2749 | ||
70bc38f5 TV |
2750 | block_symbol bs |
2751 | = lookup_global_or_static_symbol (name, GLOBAL_BLOCK, objfile, domain); | |
2752 | if (better_symbol (sym, bs.symbol, domain) == sym) | |
2753 | return { sym, global_block }; | |
2754 | else | |
2755 | return bs; | |
9aa55206 CB |
2756 | } |
2757 | ||
ececd218 | 2758 | bool |
4186eb54 KS |
2759 | symbol_matches_domain (enum language symbol_language, |
2760 | domain_enum symbol_domain, | |
2761 | domain_enum domain) | |
2762 | { | |
2763 | /* For C++ "struct foo { ... }" also defines a typedef for "foo". | |
4186eb54 KS |
2764 | Similarly, any Ada type declaration implicitly defines a typedef. */ |
2765 | if (symbol_language == language_cplus | |
2766 | || symbol_language == language_d | |
65547233 TT |
2767 | || symbol_language == language_ada |
2768 | || symbol_language == language_rust) | |
4186eb54 KS |
2769 | { |
2770 | if ((domain == VAR_DOMAIN || domain == STRUCT_DOMAIN) | |
2771 | && symbol_domain == STRUCT_DOMAIN) | |
ececd218 | 2772 | return true; |
4186eb54 KS |
2773 | } |
2774 | /* For all other languages, strict match is required. */ | |
2775 | return (symbol_domain == domain); | |
2776 | } | |
2777 | ||
cf901d3b | 2778 | /* See symtab.h. */ |
c906108c | 2779 | |
ccefe4c4 TT |
2780 | struct type * |
2781 | lookup_transparent_type (const char *name) | |
c906108c | 2782 | { |
54f4ca46 | 2783 | return current_language->lookup_transparent_type (name); |
ccefe4c4 | 2784 | } |
9af17804 | 2785 | |
ccefe4c4 TT |
2786 | /* A helper for basic_lookup_transparent_type that interfaces with the |
2787 | "quick" symbol table functions. */ | |
357e46e7 | 2788 | |
ccefe4c4 | 2789 | static struct type * |
ddbcedf5 CB |
2790 | basic_lookup_transparent_type_quick (struct objfile *objfile, |
2791 | enum block_enum block_index, | |
ccefe4c4 TT |
2792 | const char *name) |
2793 | { | |
43f3e411 | 2794 | struct compunit_symtab *cust; |
346d1dfe | 2795 | const struct blockvector *bv; |
582942f4 | 2796 | const struct block *block; |
ccefe4c4 | 2797 | struct symbol *sym; |
c906108c | 2798 | |
4d080b46 | 2799 | cust = objfile->lookup_symbol (block_index, name, STRUCT_DOMAIN); |
43f3e411 | 2800 | if (cust == NULL) |
ccefe4c4 | 2801 | return NULL; |
c906108c | 2802 | |
af39c5c8 | 2803 | bv = cust->blockvector (); |
f88cb4b6 | 2804 | block = BLOCKVECTOR_BLOCK (bv, block_index); |
b2e2f908 DE |
2805 | sym = block_find_symbol (block, name, STRUCT_DOMAIN, |
2806 | block_find_non_opaque_type, NULL); | |
2807 | if (sym == NULL) | |
43f3e411 | 2808 | error_in_psymtab_expansion (block_index, name, cust); |
b2e2f908 DE |
2809 | gdb_assert (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))); |
2810 | return SYMBOL_TYPE (sym); | |
2811 | } | |
08c23b0d | 2812 | |
b2e2f908 DE |
2813 | /* Subroutine of basic_lookup_transparent_type to simplify it. |
2814 | Look up the non-opaque definition of NAME in BLOCK_INDEX of OBJFILE. | |
2815 | BLOCK_INDEX is either GLOBAL_BLOCK or STATIC_BLOCK. */ | |
2816 | ||
2817 | static struct type * | |
ddbcedf5 CB |
2818 | basic_lookup_transparent_type_1 (struct objfile *objfile, |
2819 | enum block_enum block_index, | |
b2e2f908 DE |
2820 | const char *name) |
2821 | { | |
b2e2f908 DE |
2822 | const struct blockvector *bv; |
2823 | const struct block *block; | |
2824 | const struct symbol *sym; | |
2825 | ||
b669c953 | 2826 | for (compunit_symtab *cust : objfile->compunits ()) |
b2e2f908 | 2827 | { |
af39c5c8 | 2828 | bv = cust->blockvector (); |
b2e2f908 DE |
2829 | block = BLOCKVECTOR_BLOCK (bv, block_index); |
2830 | sym = block_find_symbol (block, name, STRUCT_DOMAIN, | |
2831 | block_find_non_opaque_type, NULL); | |
2832 | if (sym != NULL) | |
2833 | { | |
2834 | gdb_assert (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))); | |
2835 | return SYMBOL_TYPE (sym); | |
2836 | } | |
2837 | } | |
c906108c | 2838 | |
ccefe4c4 | 2839 | return NULL; |
b368761e | 2840 | } |
c906108c | 2841 | |
b368761e DC |
2842 | /* The standard implementation of lookup_transparent_type. This code |
2843 | was modeled on lookup_symbol -- the parts not relevant to looking | |
2844 | up types were just left out. In particular it's assumed here that | |
cf901d3b | 2845 | types are available in STRUCT_DOMAIN and only in file-static or |
b368761e | 2846 | global blocks. */ |
c906108c SS |
2847 | |
2848 | struct type * | |
b368761e | 2849 | basic_lookup_transparent_type (const char *name) |
c906108c | 2850 | { |
ccefe4c4 | 2851 | struct type *t; |
c906108c SS |
2852 | |
2853 | /* Now search all the global symbols. Do the symtab's first, then | |
c378eb4e | 2854 | check the psymtab's. If a psymtab indicates the existence |
c906108c SS |
2855 | of the desired name as a global, then do psymtab-to-symtab |
2856 | conversion on the fly and return the found symbol. */ | |
c5aa993b | 2857 | |
2030c079 | 2858 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2859 | { |
2860 | t = basic_lookup_transparent_type_1 (objfile, GLOBAL_BLOCK, name); | |
2861 | if (t) | |
2862 | return t; | |
2863 | } | |
c906108c | 2864 | |
2030c079 | 2865 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2866 | { |
2867 | t = basic_lookup_transparent_type_quick (objfile, GLOBAL_BLOCK, name); | |
2868 | if (t) | |
2869 | return t; | |
2870 | } | |
c906108c SS |
2871 | |
2872 | /* Now search the static file-level symbols. | |
2873 | Not strictly correct, but more useful than an error. | |
2874 | Do the symtab's first, then | |
c378eb4e | 2875 | check the psymtab's. If a psymtab indicates the existence |
c906108c | 2876 | of the desired name as a file-level static, then do psymtab-to-symtab |
c378eb4e | 2877 | conversion on the fly and return the found symbol. */ |
c906108c | 2878 | |
2030c079 | 2879 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2880 | { |
2881 | t = basic_lookup_transparent_type_1 (objfile, STATIC_BLOCK, name); | |
2882 | if (t) | |
2883 | return t; | |
2884 | } | |
c906108c | 2885 | |
2030c079 | 2886 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2887 | { |
2888 | t = basic_lookup_transparent_type_quick (objfile, STATIC_BLOCK, name); | |
2889 | if (t) | |
2890 | return t; | |
2891 | } | |
ccefe4c4 | 2892 | |
c906108c SS |
2893 | return (struct type *) 0; |
2894 | } | |
2895 | ||
6969f124 | 2896 | /* See symtab.h. */ |
f8eba3c6 | 2897 | |
6969f124 | 2898 | bool |
b5ec771e PA |
2899 | iterate_over_symbols (const struct block *block, |
2900 | const lookup_name_info &name, | |
f8eba3c6 | 2901 | const domain_enum domain, |
14bc53a8 | 2902 | gdb::function_view<symbol_found_callback_ftype> callback) |
f8eba3c6 | 2903 | { |
4eeaa230 DE |
2904 | struct block_iterator iter; |
2905 | struct symbol *sym; | |
f8eba3c6 | 2906 | |
358d6ab3 | 2907 | ALL_BLOCK_SYMBOLS_WITH_NAME (block, name, iter, sym) |
4eeaa230 | 2908 | { |
c1b5c1eb | 2909 | if (symbol_matches_domain (sym->language (), SYMBOL_DOMAIN (sym), domain)) |
f8eba3c6 | 2910 | { |
7e41c8db KS |
2911 | struct block_symbol block_sym = {sym, block}; |
2912 | ||
2913 | if (!callback (&block_sym)) | |
6969f124 | 2914 | return false; |
f8eba3c6 | 2915 | } |
f8eba3c6 | 2916 | } |
6969f124 | 2917 | return true; |
f8eba3c6 TT |
2918 | } |
2919 | ||
6a3dbf1b TT |
2920 | /* See symtab.h. */ |
2921 | ||
2922 | bool | |
2923 | iterate_over_symbols_terminated | |
2924 | (const struct block *block, | |
2925 | const lookup_name_info &name, | |
2926 | const domain_enum domain, | |
2927 | gdb::function_view<symbol_found_callback_ftype> callback) | |
2928 | { | |
2929 | if (!iterate_over_symbols (block, name, domain, callback)) | |
2930 | return false; | |
2931 | struct block_symbol block_sym = {nullptr, block}; | |
2932 | return callback (&block_sym); | |
2933 | } | |
2934 | ||
43f3e411 DE |
2935 | /* Find the compunit symtab associated with PC and SECTION. |
2936 | This will read in debug info as necessary. */ | |
c906108c | 2937 | |
43f3e411 DE |
2938 | struct compunit_symtab * |
2939 | find_pc_sect_compunit_symtab (CORE_ADDR pc, struct obj_section *section) | |
c906108c | 2940 | { |
43f3e411 | 2941 | struct compunit_symtab *best_cust = NULL; |
61eb46a4 | 2942 | CORE_ADDR best_cust_range = 0; |
77e371c0 | 2943 | struct bound_minimal_symbol msymbol; |
8a48e967 DJ |
2944 | |
2945 | /* If we know that this is not a text address, return failure. This is | |
2946 | necessary because we loop based on the block's high and low code | |
2947 | addresses, which do not include the data ranges, and because | |
2948 | we call find_pc_sect_psymtab which has a similar restriction based | |
2949 | on the partial_symtab's texthigh and textlow. */ | |
77e371c0 | 2950 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); |
1ed9f74e | 2951 | if (msymbol.minsym && msymbol.minsym->data_p ()) |
8a48e967 | 2952 | return NULL; |
c906108c SS |
2953 | |
2954 | /* Search all symtabs for the one whose file contains our address, and which | |
2955 | is the smallest of all the ones containing the address. This is designed | |
2956 | to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000 | |
2957 | and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from | |
2958 | 0x1000-0x4000, but for address 0x2345 we want to return symtab b. | |
2959 | ||
2960 | This happens for native ecoff format, where code from included files | |
c378eb4e | 2961 | gets its own symtab. The symtab for the included file should have |
c906108c SS |
2962 | been read in already via the dependency mechanism. |
2963 | It might be swifter to create several symtabs with the same name | |
2964 | like xcoff does (I'm not sure). | |
2965 | ||
2966 | It also happens for objfiles that have their functions reordered. | |
2967 | For these, the symtab we are looking for is not necessarily read in. */ | |
2968 | ||
2030c079 | 2969 | for (objfile *obj_file : current_program_space->objfiles ()) |
d8aeb77f | 2970 | { |
b669c953 | 2971 | for (compunit_symtab *cust : obj_file->compunits ()) |
d8aeb77f | 2972 | { |
af39c5c8 | 2973 | const struct blockvector *bv = cust->blockvector (); |
61eb46a4 TV |
2974 | const struct block *global_block |
2975 | = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
2976 | CORE_ADDR start = BLOCK_START (global_block); | |
2977 | CORE_ADDR end = BLOCK_END (global_block); | |
2978 | bool in_range_p = start <= pc && pc < end; | |
2979 | if (!in_range_p) | |
2980 | continue; | |
43f3e411 | 2981 | |
1b00ef06 TV |
2982 | if (BLOCKVECTOR_MAP (bv)) |
2983 | { | |
2984 | if (addrmap_find (BLOCKVECTOR_MAP (bv), pc) == nullptr) | |
2985 | continue; | |
2986 | ||
2987 | return cust; | |
2988 | } | |
2989 | ||
61eb46a4 TV |
2990 | CORE_ADDR range = end - start; |
2991 | if (best_cust != nullptr | |
2992 | && range >= best_cust_range) | |
2993 | /* Cust doesn't have a smaller range than best_cust, skip it. */ | |
2994 | continue; | |
2995 | ||
2996 | /* For an objfile that has its functions reordered, | |
2997 | find_pc_psymtab will find the proper partial symbol table | |
2998 | and we simply return its corresponding symtab. */ | |
2999 | /* In order to better support objfiles that contain both | |
3000 | stabs and coff debugging info, we continue on if a psymtab | |
3001 | can't be found. */ | |
4d080b46 | 3002 | if ((obj_file->flags & OBJF_REORDERED) != 0) |
61eb46a4 TV |
3003 | { |
3004 | struct compunit_symtab *result; | |
3005 | ||
3006 | result | |
4d080b46 TT |
3007 | = obj_file->find_pc_sect_compunit_symtab (msymbol, |
3008 | pc, | |
3009 | section, | |
3010 | 0); | |
61eb46a4 TV |
3011 | if (result != NULL) |
3012 | return result; | |
3013 | } | |
c906108c | 3014 | |
61eb46a4 | 3015 | if (section != 0) |
d8aeb77f | 3016 | { |
61eb46a4 TV |
3017 | struct symbol *sym = NULL; |
3018 | struct block_iterator iter; | |
3019 | ||
bd24c5d6 TV |
3020 | for (int b_index = GLOBAL_BLOCK; |
3021 | b_index <= STATIC_BLOCK && sym == NULL; | |
3022 | ++b_index) | |
d8aeb77f | 3023 | { |
bd24c5d6 TV |
3024 | const struct block *b = BLOCKVECTOR_BLOCK (bv, b_index); |
3025 | ALL_BLOCK_SYMBOLS (b, iter, sym) | |
3026 | { | |
3027 | fixup_symbol_section (sym, obj_file); | |
ebbc3a7d | 3028 | if (matching_obj_sections (sym->obj_section (obj_file), |
bd24c5d6 TV |
3029 | section)) |
3030 | break; | |
3031 | } | |
d8aeb77f | 3032 | } |
61eb46a4 TV |
3033 | if (sym == NULL) |
3034 | continue; /* No symbol in this symtab matches | |
d8aeb77f | 3035 | section. */ |
d8aeb77f | 3036 | } |
61eb46a4 TV |
3037 | |
3038 | /* Cust is best found sofar, save it. */ | |
3039 | best_cust = cust; | |
3040 | best_cust_range = range; | |
d8aeb77f TT |
3041 | } |
3042 | } | |
c906108c | 3043 | |
43f3e411 DE |
3044 | if (best_cust != NULL) |
3045 | return best_cust; | |
c906108c | 3046 | |
072cabfe DE |
3047 | /* Not found in symtabs, search the "quick" symtabs (e.g. psymtabs). */ |
3048 | ||
2030c079 | 3049 | for (objfile *objf : current_program_space->objfiles ()) |
aed57c53 | 3050 | { |
4d080b46 TT |
3051 | struct compunit_symtab *result |
3052 | = objf->find_pc_sect_compunit_symtab (msymbol, pc, section, 1); | |
aed57c53 TT |
3053 | if (result != NULL) |
3054 | return result; | |
3055 | } | |
ccefe4c4 TT |
3056 | |
3057 | return NULL; | |
c906108c SS |
3058 | } |
3059 | ||
43f3e411 DE |
3060 | /* Find the compunit symtab associated with PC. |
3061 | This will read in debug info as necessary. | |
3062 | Backward compatibility, no section. */ | |
c906108c | 3063 | |
43f3e411 DE |
3064 | struct compunit_symtab * |
3065 | find_pc_compunit_symtab (CORE_ADDR pc) | |
c906108c | 3066 | { |
43f3e411 | 3067 | return find_pc_sect_compunit_symtab (pc, find_pc_mapped_section (pc)); |
c906108c | 3068 | } |
71a3c369 TT |
3069 | |
3070 | /* See symtab.h. */ | |
3071 | ||
3072 | struct symbol * | |
3073 | find_symbol_at_address (CORE_ADDR address) | |
3074 | { | |
1f2624a3 TT |
3075 | /* A helper function to search a given symtab for a symbol matching |
3076 | ADDR. */ | |
3077 | auto search_symtab = [] (compunit_symtab *symtab, CORE_ADDR addr) -> symbol * | |
aed57c53 | 3078 | { |
af39c5c8 | 3079 | const struct blockvector *bv = symtab->blockvector (); |
71a3c369 | 3080 | |
1f2624a3 | 3081 | for (int i = GLOBAL_BLOCK; i <= STATIC_BLOCK; ++i) |
aed57c53 | 3082 | { |
1f2624a3 TT |
3083 | const struct block *b = BLOCKVECTOR_BLOCK (bv, i); |
3084 | struct block_iterator iter; | |
3085 | struct symbol *sym; | |
71a3c369 | 3086 | |
1f2624a3 | 3087 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
71a3c369 | 3088 | { |
1f2624a3 TT |
3089 | if (SYMBOL_CLASS (sym) == LOC_STATIC |
3090 | && SYMBOL_VALUE_ADDRESS (sym) == addr) | |
3091 | return sym; | |
3092 | } | |
3093 | } | |
3094 | return nullptr; | |
3095 | }; | |
aed57c53 | 3096 | |
1f2624a3 TT |
3097 | for (objfile *objfile : current_program_space->objfiles ()) |
3098 | { | |
4d080b46 TT |
3099 | /* If this objfile was read with -readnow, then we need to |
3100 | search the symtabs directly. */ | |
3101 | if ((objfile->flags & OBJF_READNOW) != 0) | |
1f2624a3 TT |
3102 | { |
3103 | for (compunit_symtab *symtab : objfile->compunits ()) | |
3104 | { | |
3105 | struct symbol *sym = search_symtab (symtab, address); | |
3106 | if (sym != nullptr) | |
3107 | return sym; | |
3108 | } | |
3109 | } | |
3110 | else | |
3111 | { | |
3112 | struct compunit_symtab *symtab | |
4d080b46 | 3113 | = objfile->find_compunit_symtab_by_address (address); |
1f2624a3 TT |
3114 | if (symtab != NULL) |
3115 | { | |
3116 | struct symbol *sym = search_symtab (symtab, address); | |
3117 | if (sym != nullptr) | |
3118 | return sym; | |
71a3c369 | 3119 | } |
aed57c53 TT |
3120 | } |
3121 | } | |
71a3c369 TT |
3122 | |
3123 | return NULL; | |
3124 | } | |
3125 | ||
c906108c | 3126 | \f |
c5aa993b | 3127 | |
7e73cedf | 3128 | /* Find the source file and line number for a given PC value and SECTION. |
c906108c SS |
3129 | Return a structure containing a symtab pointer, a line number, |
3130 | and a pc range for the entire source line. | |
3131 | The value's .pc field is NOT the specified pc. | |
3132 | NOTCURRENT nonzero means, if specified pc is on a line boundary, | |
3133 | use the line that ends there. Otherwise, in that case, the line | |
3134 | that begins there is used. */ | |
3135 | ||
3136 | /* The big complication here is that a line may start in one file, and end just | |
3137 | before the start of another file. This usually occurs when you #include | |
3138 | code in the middle of a subroutine. To properly find the end of a line's PC | |
3139 | range, we must search all symtabs associated with this compilation unit, and | |
3140 | find the one whose first PC is closer than that of the next line in this | |
3141 | symtab. */ | |
3142 | ||
c906108c | 3143 | struct symtab_and_line |
714835d5 | 3144 | find_pc_sect_line (CORE_ADDR pc, struct obj_section *section, int notcurrent) |
c906108c | 3145 | { |
43f3e411 | 3146 | struct compunit_symtab *cust; |
52f0bd74 AC |
3147 | struct linetable *l; |
3148 | int len; | |
52f0bd74 | 3149 | struct linetable_entry *item; |
346d1dfe | 3150 | const struct blockvector *bv; |
7cbd4a93 | 3151 | struct bound_minimal_symbol msymbol; |
c906108c SS |
3152 | |
3153 | /* Info on best line seen so far, and where it starts, and its file. */ | |
3154 | ||
3155 | struct linetable_entry *best = NULL; | |
3156 | CORE_ADDR best_end = 0; | |
3157 | struct symtab *best_symtab = 0; | |
3158 | ||
3159 | /* Store here the first line number | |
3160 | of a file which contains the line at the smallest pc after PC. | |
3161 | If we don't find a line whose range contains PC, | |
3162 | we will use a line one less than this, | |
3163 | with a range from the start of that file to the first line's pc. */ | |
3164 | struct linetable_entry *alt = NULL; | |
c906108c SS |
3165 | |
3166 | /* Info on best line seen in this file. */ | |
3167 | ||
3168 | struct linetable_entry *prev; | |
3169 | ||
3170 | /* If this pc is not from the current frame, | |
3171 | it is the address of the end of a call instruction. | |
3172 | Quite likely that is the start of the following statement. | |
3173 | But what we want is the statement containing the instruction. | |
3174 | Fudge the pc to make sure we get that. */ | |
3175 | ||
b77b1eb7 JB |
3176 | /* It's tempting to assume that, if we can't find debugging info for |
3177 | any function enclosing PC, that we shouldn't search for line | |
3178 | number info, either. However, GAS can emit line number info for | |
3179 | assembly files --- very helpful when debugging hand-written | |
3180 | assembly code. In such a case, we'd have no debug info for the | |
3181 | function, but we would have line info. */ | |
648f4f79 | 3182 | |
c906108c SS |
3183 | if (notcurrent) |
3184 | pc -= 1; | |
3185 | ||
c5aa993b | 3186 | /* elz: added this because this function returned the wrong |
c906108c | 3187 | information if the pc belongs to a stub (import/export) |
c378eb4e | 3188 | to call a shlib function. This stub would be anywhere between |
9af17804 | 3189 | two functions in the target, and the line info was erroneously |
c378eb4e MS |
3190 | taken to be the one of the line before the pc. */ |
3191 | ||
c906108c | 3192 | /* RT: Further explanation: |
c5aa993b | 3193 | |
c906108c SS |
3194 | * We have stubs (trampolines) inserted between procedures. |
3195 | * | |
3196 | * Example: "shr1" exists in a shared library, and a "shr1" stub also | |
3197 | * exists in the main image. | |
3198 | * | |
3199 | * In the minimal symbol table, we have a bunch of symbols | |
c378eb4e | 3200 | * sorted by start address. The stubs are marked as "trampoline", |
c906108c SS |
3201 | * the others appear as text. E.g.: |
3202 | * | |
9af17804 | 3203 | * Minimal symbol table for main image |
c906108c SS |
3204 | * main: code for main (text symbol) |
3205 | * shr1: stub (trampoline symbol) | |
3206 | * foo: code for foo (text symbol) | |
3207 | * ... | |
3208 | * Minimal symbol table for "shr1" image: | |
3209 | * ... | |
3210 | * shr1: code for shr1 (text symbol) | |
3211 | * ... | |
3212 | * | |
3213 | * So the code below is trying to detect if we are in the stub | |
3214 | * ("shr1" stub), and if so, find the real code ("shr1" trampoline), | |
3215 | * and if found, do the symbolization from the real-code address | |
3216 | * rather than the stub address. | |
3217 | * | |
3218 | * Assumptions being made about the minimal symbol table: | |
3219 | * 1. lookup_minimal_symbol_by_pc() will return a trampoline only | |
c378eb4e | 3220 | * if we're really in the trampoline.s If we're beyond it (say |
9af17804 | 3221 | * we're in "foo" in the above example), it'll have a closer |
c906108c SS |
3222 | * symbol (the "foo" text symbol for example) and will not |
3223 | * return the trampoline. | |
3224 | * 2. lookup_minimal_symbol_text() will find a real text symbol | |
3225 | * corresponding to the trampoline, and whose address will | |
c378eb4e | 3226 | * be different than the trampoline address. I put in a sanity |
c906108c SS |
3227 | * check for the address being the same, to avoid an |
3228 | * infinite recursion. | |
3229 | */ | |
c5aa993b | 3230 | msymbol = lookup_minimal_symbol_by_pc (pc); |
7cbd4a93 TT |
3231 | if (msymbol.minsym != NULL) |
3232 | if (MSYMBOL_TYPE (msymbol.minsym) == mst_solib_trampoline) | |
c5aa993b | 3233 | { |
77e371c0 | 3234 | struct bound_minimal_symbol mfunsym |
c9d95fa3 | 3235 | = lookup_minimal_symbol_text (msymbol.minsym->linkage_name (), |
77e371c0 TT |
3236 | NULL); |
3237 | ||
3238 | if (mfunsym.minsym == NULL) | |
c5aa993b JM |
3239 | /* I eliminated this warning since it is coming out |
3240 | * in the following situation: | |
3241 | * gdb shmain // test program with shared libraries | |
3242 | * (gdb) break shr1 // function in shared lib | |
3243 | * Warning: In stub for ... | |
9af17804 | 3244 | * In the above situation, the shared lib is not loaded yet, |
c5aa993b JM |
3245 | * so of course we can't find the real func/line info, |
3246 | * but the "break" still works, and the warning is annoying. | |
c378eb4e | 3247 | * So I commented out the warning. RT */ |
3e43a32a | 3248 | /* warning ("In stub for %s; unable to find real function/line info", |
987012b8 | 3249 | msymbol->linkage_name ()); */ |
c378eb4e | 3250 | ; |
c5aa993b | 3251 | /* fall through */ |
77e371c0 TT |
3252 | else if (BMSYMBOL_VALUE_ADDRESS (mfunsym) |
3253 | == BMSYMBOL_VALUE_ADDRESS (msymbol)) | |
c5aa993b | 3254 | /* Avoid infinite recursion */ |
c378eb4e | 3255 | /* See above comment about why warning is commented out. */ |
3e43a32a | 3256 | /* warning ("In stub for %s; unable to find real function/line info", |
987012b8 | 3257 | msymbol->linkage_name ()); */ |
c378eb4e | 3258 | ; |
c5aa993b JM |
3259 | /* fall through */ |
3260 | else | |
dd69bf7a KB |
3261 | { |
3262 | /* Detect an obvious case of infinite recursion. If this | |
3263 | should occur, we'd like to know about it, so error out, | |
3264 | fatally. */ | |
3265 | if (BMSYMBOL_VALUE_ADDRESS (mfunsym) == pc) | |
3266 | internal_error (__FILE__, __LINE__, | |
dda83cd7 | 3267 | _("Infinite recursion detected in find_pc_sect_line;" |
dd69bf7a KB |
3268 | "please file a bug report")); |
3269 | ||
3270 | return find_pc_line (BMSYMBOL_VALUE_ADDRESS (mfunsym), 0); | |
3271 | } | |
c5aa993b | 3272 | } |
c906108c | 3273 | |
51abb421 PA |
3274 | symtab_and_line val; |
3275 | val.pspace = current_program_space; | |
c906108c | 3276 | |
43f3e411 DE |
3277 | cust = find_pc_sect_compunit_symtab (pc, section); |
3278 | if (cust == NULL) | |
c906108c | 3279 | { |
c378eb4e | 3280 | /* If no symbol information, return previous pc. */ |
c906108c SS |
3281 | if (notcurrent) |
3282 | pc++; | |
3283 | val.pc = pc; | |
3284 | return val; | |
3285 | } | |
3286 | ||
af39c5c8 | 3287 | bv = cust->blockvector (); |
c906108c SS |
3288 | |
3289 | /* Look at all the symtabs that share this blockvector. | |
3290 | They all have the same apriori range, that we found was right; | |
3291 | but they have different line tables. */ | |
3292 | ||
102cc235 | 3293 | for (symtab *iter_s : cust->filetabs ()) |
c906108c SS |
3294 | { |
3295 | /* Find the best line in this symtab. */ | |
5b607461 | 3296 | l = iter_s->linetable (); |
c906108c | 3297 | if (!l) |
c5aa993b | 3298 | continue; |
c906108c SS |
3299 | len = l->nitems; |
3300 | if (len <= 0) | |
3301 | { | |
3302 | /* I think len can be zero if the symtab lacks line numbers | |
3303 | (e.g. gcc -g1). (Either that or the LINETABLE is NULL; | |
3304 | I'm not sure which, and maybe it depends on the symbol | |
3305 | reader). */ | |
3306 | continue; | |
3307 | } | |
3308 | ||
3309 | prev = NULL; | |
c378eb4e | 3310 | item = l->item; /* Get first line info. */ |
c906108c SS |
3311 | |
3312 | /* Is this file's first line closer than the first lines of other files? | |
dda83cd7 | 3313 | If so, record this file, and its first line, as best alternate. */ |
c906108c | 3314 | if (item->pc > pc && (!alt || item->pc < alt->pc)) |
c656bca5 | 3315 | alt = item; |
c906108c | 3316 | |
b926417a | 3317 | auto pc_compare = [](const CORE_ADDR & comp_pc, |
7cbe16e9 SR |
3318 | const struct linetable_entry & lhs)->bool |
3319 | { | |
b926417a | 3320 | return comp_pc < lhs.pc; |
7cbe16e9 | 3321 | }; |
c906108c | 3322 | |
7cbe16e9 SR |
3323 | struct linetable_entry *first = item; |
3324 | struct linetable_entry *last = item + len; | |
3325 | item = std::upper_bound (first, last, pc, pc_compare); | |
3326 | if (item != first) | |
d8cc8af6 | 3327 | prev = item - 1; /* Found a matching item. */ |
c906108c SS |
3328 | |
3329 | /* At this point, prev points at the line whose start addr is <= pc, and | |
dda83cd7 SM |
3330 | item points at the next line. If we ran off the end of the linetable |
3331 | (pc >= start of the last line), then prev == item. If pc < start of | |
3332 | the first line, prev will not be set. */ | |
c906108c SS |
3333 | |
3334 | /* Is this file's best line closer than the best in the other files? | |
dda83cd7 SM |
3335 | If so, record this file, and its best line, as best so far. Don't |
3336 | save prev if it represents the end of a function (i.e. line number | |
3337 | 0) instead of a real line. */ | |
c906108c | 3338 | |
083ae935 | 3339 | if (prev && prev->line && (!best || prev->pc > best->pc)) |
c906108c SS |
3340 | { |
3341 | best = prev; | |
43f3e411 | 3342 | best_symtab = iter_s; |
25d53da1 | 3343 | |
8c95582d AB |
3344 | /* If during the binary search we land on a non-statement entry, |
3345 | scan backward through entries at the same address to see if | |
3346 | there is an entry marked as is-statement. In theory this | |
3347 | duplication should have been removed from the line table | |
3348 | during construction, this is just a double check. If the line | |
3349 | table has had the duplication removed then this should be | |
3350 | pretty cheap. */ | |
3351 | if (!best->is_stmt) | |
3352 | { | |
3353 | struct linetable_entry *tmp = best; | |
3354 | while (tmp > first && (tmp - 1)->pc == tmp->pc | |
3355 | && (tmp - 1)->line != 0 && !tmp->is_stmt) | |
3356 | --tmp; | |
3357 | if (tmp->is_stmt) | |
3358 | best = tmp; | |
3359 | } | |
3360 | ||
25d53da1 KB |
3361 | /* Discard BEST_END if it's before the PC of the current BEST. */ |
3362 | if (best_end <= best->pc) | |
3363 | best_end = 0; | |
c906108c | 3364 | } |
25d53da1 KB |
3365 | |
3366 | /* If another line (denoted by ITEM) is in the linetable and its | |
7cbe16e9 | 3367 | PC is after BEST's PC, but before the current BEST_END, then |
25d53da1 | 3368 | use ITEM's PC as the new best_end. */ |
4ee89e90 | 3369 | if (best && item < last && item->pc > best->pc |
7cbe16e9 | 3370 | && (best_end == 0 || best_end > item->pc)) |
25d53da1 | 3371 | best_end = item->pc; |
c906108c SS |
3372 | } |
3373 | ||
3374 | if (!best_symtab) | |
3375 | { | |
e86e87f7 DJ |
3376 | /* If we didn't find any line number info, just return zeros. |
3377 | We used to return alt->line - 1 here, but that could be | |
3378 | anywhere; if we don't have line number info for this PC, | |
3379 | don't make some up. */ | |
3380 | val.pc = pc; | |
c906108c | 3381 | } |
e8717518 FF |
3382 | else if (best->line == 0) |
3383 | { | |
3384 | /* If our best fit is in a range of PC's for which no line | |
3385 | number info is available (line number is zero) then we didn't | |
c378eb4e | 3386 | find any valid line information. */ |
e8717518 FF |
3387 | val.pc = pc; |
3388 | } | |
c906108c SS |
3389 | else |
3390 | { | |
8c95582d | 3391 | val.is_stmt = best->is_stmt; |
c906108c SS |
3392 | val.symtab = best_symtab; |
3393 | val.line = best->line; | |
3394 | val.pc = best->pc; | |
3395 | if (best_end && (!alt || best_end < alt->pc)) | |
3396 | val.end = best_end; | |
3397 | else if (alt) | |
3398 | val.end = alt->pc; | |
3399 | else | |
3400 | val.end = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); | |
3401 | } | |
3402 | val.section = section; | |
3403 | return val; | |
3404 | } | |
3405 | ||
c378eb4e | 3406 | /* Backward compatibility (no section). */ |
c906108c SS |
3407 | |
3408 | struct symtab_and_line | |
fba45db2 | 3409 | find_pc_line (CORE_ADDR pc, int notcurrent) |
c906108c | 3410 | { |
714835d5 | 3411 | struct obj_section *section; |
c906108c SS |
3412 | |
3413 | section = find_pc_overlay (pc); | |
31a8f60f AB |
3414 | if (!pc_in_unmapped_range (pc, section)) |
3415 | return find_pc_sect_line (pc, section, notcurrent); | |
3416 | ||
3417 | /* If the original PC was an unmapped address then we translate this to a | |
3418 | mapped address in order to lookup the sal. However, as the user | |
3419 | passed us an unmapped address it makes more sense to return a result | |
3420 | that has the pc and end fields translated to unmapped addresses. */ | |
3421 | pc = overlay_mapped_address (pc, section); | |
3422 | symtab_and_line sal = find_pc_sect_line (pc, section, notcurrent); | |
3423 | sal.pc = overlay_unmapped_address (sal.pc, section); | |
3424 | sal.end = overlay_unmapped_address (sal.end, section); | |
3425 | return sal; | |
c906108c | 3426 | } |
34248c3a DE |
3427 | |
3428 | /* See symtab.h. */ | |
3429 | ||
3430 | struct symtab * | |
3431 | find_pc_line_symtab (CORE_ADDR pc) | |
3432 | { | |
3433 | struct symtab_and_line sal; | |
3434 | ||
3435 | /* This always passes zero for NOTCURRENT to find_pc_line. | |
3436 | There are currently no callers that ever pass non-zero. */ | |
3437 | sal = find_pc_line (pc, 0); | |
3438 | return sal.symtab; | |
3439 | } | |
c906108c | 3440 | \f |
c906108c SS |
3441 | /* Find line number LINE in any symtab whose name is the same as |
3442 | SYMTAB. | |
3443 | ||
3444 | If found, return the symtab that contains the linetable in which it was | |
3445 | found, set *INDEX to the index in the linetable of the best entry | |
ececd218 | 3446 | found, and set *EXACT_MATCH to true if the value returned is an |
c906108c SS |
3447 | exact match. |
3448 | ||
3449 | If not found, return NULL. */ | |
3450 | ||
50641945 | 3451 | struct symtab * |
5accd1a0 | 3452 | find_line_symtab (struct symtab *sym_tab, int line, |
ececd218 | 3453 | int *index, bool *exact_match) |
c906108c | 3454 | { |
6f43c46f | 3455 | int exact = 0; /* Initialized here to avoid a compiler warning. */ |
c906108c SS |
3456 | |
3457 | /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE | |
3458 | so far seen. */ | |
3459 | ||
3460 | int best_index; | |
3461 | struct linetable *best_linetable; | |
3462 | struct symtab *best_symtab; | |
3463 | ||
3464 | /* First try looking it up in the given symtab. */ | |
5b607461 | 3465 | best_linetable = sym_tab->linetable (); |
5accd1a0 | 3466 | best_symtab = sym_tab; |
f8eba3c6 | 3467 | best_index = find_line_common (best_linetable, line, &exact, 0); |
c906108c SS |
3468 | if (best_index < 0 || !exact) |
3469 | { | |
3470 | /* Didn't find an exact match. So we better keep looking for | |
dda83cd7 SM |
3471 | another symtab with the same name. In the case of xcoff, |
3472 | multiple csects for one source file (produced by IBM's FORTRAN | |
3473 | compiler) produce multiple symtabs (this is unavoidable | |
3474 | assuming csects can be at arbitrary places in memory and that | |
3475 | the GLOBAL_BLOCK of a symtab has a begin and end address). */ | |
c906108c SS |
3476 | |
3477 | /* BEST is the smallest linenumber > LINE so far seen, | |
dda83cd7 SM |
3478 | or 0 if none has been seen so far. |
3479 | BEST_INDEX and BEST_LINETABLE identify the item for it. */ | |
c906108c SS |
3480 | int best; |
3481 | ||
c906108c SS |
3482 | if (best_index >= 0) |
3483 | best = best_linetable->item[best_index].line; | |
3484 | else | |
3485 | best = 0; | |
3486 | ||
2030c079 | 3487 | for (objfile *objfile : current_program_space->objfiles ()) |
4d080b46 | 3488 | objfile->expand_symtabs_with_fullname (symtab_to_fullname (sym_tab)); |
51432cca | 3489 | |
2030c079 | 3490 | for (objfile *objfile : current_program_space->objfiles ()) |
8b31193a | 3491 | { |
b669c953 | 3492 | for (compunit_symtab *cu : objfile->compunits ()) |
8b31193a | 3493 | { |
102cc235 | 3494 | for (symtab *s : cu->filetabs ()) |
8b31193a TT |
3495 | { |
3496 | struct linetable *l; | |
3497 | int ind; | |
3498 | ||
3499 | if (FILENAME_CMP (sym_tab->filename, s->filename) != 0) | |
3500 | continue; | |
3501 | if (FILENAME_CMP (symtab_to_fullname (sym_tab), | |
3502 | symtab_to_fullname (s)) != 0) | |
3503 | continue; | |
5b607461 | 3504 | l = s->linetable (); |
8b31193a TT |
3505 | ind = find_line_common (l, line, &exact, 0); |
3506 | if (ind >= 0) | |
3507 | { | |
3508 | if (exact) | |
3509 | { | |
3510 | best_index = ind; | |
3511 | best_linetable = l; | |
3512 | best_symtab = s; | |
3513 | goto done; | |
3514 | } | |
3515 | if (best == 0 || l->item[ind].line < best) | |
3516 | { | |
3517 | best = l->item[ind].line; | |
3518 | best_index = ind; | |
3519 | best_linetable = l; | |
3520 | best_symtab = s; | |
3521 | } | |
3522 | } | |
3523 | } | |
3524 | } | |
3525 | } | |
c906108c | 3526 | } |
c5aa993b | 3527 | done: |
c906108c SS |
3528 | if (best_index < 0) |
3529 | return NULL; | |
3530 | ||
3531 | if (index) | |
3532 | *index = best_index; | |
3533 | if (exact_match) | |
ececd218 | 3534 | *exact_match = (exact != 0); |
c906108c SS |
3535 | |
3536 | return best_symtab; | |
3537 | } | |
f8eba3c6 TT |
3538 | |
3539 | /* Given SYMTAB, returns all the PCs function in the symtab that | |
67d89901 TT |
3540 | exactly match LINE. Returns an empty vector if there are no exact |
3541 | matches, but updates BEST_ITEM in this case. */ | |
f8eba3c6 | 3542 | |
67d89901 | 3543 | std::vector<CORE_ADDR> |
f8eba3c6 TT |
3544 | find_pcs_for_symtab_line (struct symtab *symtab, int line, |
3545 | struct linetable_entry **best_item) | |
3546 | { | |
c656bca5 | 3547 | int start = 0; |
67d89901 | 3548 | std::vector<CORE_ADDR> result; |
f8eba3c6 TT |
3549 | |
3550 | /* First, collect all the PCs that are at this line. */ | |
3551 | while (1) | |
3552 | { | |
3553 | int was_exact; | |
3554 | int idx; | |
3555 | ||
5b607461 | 3556 | idx = find_line_common (symtab->linetable (), line, &was_exact, |
8435453b | 3557 | start); |
f8eba3c6 TT |
3558 | if (idx < 0) |
3559 | break; | |
3560 | ||
3561 | if (!was_exact) | |
3562 | { | |
5b607461 | 3563 | struct linetable_entry *item = &symtab->linetable ()->item[idx]; |
f8eba3c6 | 3564 | |
8c95582d AB |
3565 | if (*best_item == NULL |
3566 | || (item->line < (*best_item)->line && item->is_stmt)) | |
f8eba3c6 TT |
3567 | *best_item = item; |
3568 | ||
3569 | break; | |
3570 | } | |
3571 | ||
5b607461 | 3572 | result.push_back (symtab->linetable ()->item[idx].pc); |
f8eba3c6 TT |
3573 | start = idx + 1; |
3574 | } | |
3575 | ||
3576 | return result; | |
3577 | } | |
3578 | ||
c906108c SS |
3579 | \f |
3580 | /* Set the PC value for a given source file and line number and return true. | |
ececd218 | 3581 | Returns false for invalid line number (and sets the PC to 0). |
c906108c SS |
3582 | The source file is specified with a struct symtab. */ |
3583 | ||
ececd218 | 3584 | bool |
fba45db2 | 3585 | find_line_pc (struct symtab *symtab, int line, CORE_ADDR *pc) |
c906108c SS |
3586 | { |
3587 | struct linetable *l; | |
3588 | int ind; | |
3589 | ||
3590 | *pc = 0; | |
3591 | if (symtab == 0) | |
ececd218 | 3592 | return false; |
c906108c SS |
3593 | |
3594 | symtab = find_line_symtab (symtab, line, &ind, NULL); | |
3595 | if (symtab != NULL) | |
3596 | { | |
5b607461 | 3597 | l = symtab->linetable (); |
c906108c | 3598 | *pc = l->item[ind].pc; |
ececd218 | 3599 | return true; |
c906108c SS |
3600 | } |
3601 | else | |
ececd218 | 3602 | return false; |
c906108c SS |
3603 | } |
3604 | ||
3605 | /* Find the range of pc values in a line. | |
3606 | Store the starting pc of the line into *STARTPTR | |
3607 | and the ending pc (start of next line) into *ENDPTR. | |
ececd218 CB |
3608 | Returns true to indicate success. |
3609 | Returns false if could not find the specified line. */ | |
c906108c | 3610 | |
ececd218 | 3611 | bool |
fba45db2 KB |
3612 | find_line_pc_range (struct symtab_and_line sal, CORE_ADDR *startptr, |
3613 | CORE_ADDR *endptr) | |
c906108c SS |
3614 | { |
3615 | CORE_ADDR startaddr; | |
3616 | struct symtab_and_line found_sal; | |
3617 | ||
3618 | startaddr = sal.pc; | |
c5aa993b | 3619 | if (startaddr == 0 && !find_line_pc (sal.symtab, sal.line, &startaddr)) |
ececd218 | 3620 | return false; |
c906108c SS |
3621 | |
3622 | /* This whole function is based on address. For example, if line 10 has | |
3623 | two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then | |
3624 | "info line *0x123" should say the line goes from 0x100 to 0x200 | |
3625 | and "info line *0x355" should say the line goes from 0x300 to 0x400. | |
3626 | This also insures that we never give a range like "starts at 0x134 | |
3627 | and ends at 0x12c". */ | |
3628 | ||
3629 | found_sal = find_pc_sect_line (startaddr, sal.section, 0); | |
3630 | if (found_sal.line != sal.line) | |
3631 | { | |
3632 | /* The specified line (sal) has zero bytes. */ | |
3633 | *startptr = found_sal.pc; | |
3634 | *endptr = found_sal.pc; | |
3635 | } | |
3636 | else | |
3637 | { | |
3638 | *startptr = found_sal.pc; | |
3639 | *endptr = found_sal.end; | |
3640 | } | |
ececd218 | 3641 | return true; |
c906108c SS |
3642 | } |
3643 | ||
3644 | /* Given a line table and a line number, return the index into the line | |
3645 | table for the pc of the nearest line whose number is >= the specified one. | |
3646 | Return -1 if none is found. The value is >= 0 if it is an index. | |
f8eba3c6 | 3647 | START is the index at which to start searching the line table. |
c906108c SS |
3648 | |
3649 | Set *EXACT_MATCH nonzero if the value returned is an exact match. */ | |
3650 | ||
3651 | static int | |
aa1ee363 | 3652 | find_line_common (struct linetable *l, int lineno, |
f8eba3c6 | 3653 | int *exact_match, int start) |
c906108c | 3654 | { |
52f0bd74 AC |
3655 | int i; |
3656 | int len; | |
c906108c SS |
3657 | |
3658 | /* BEST is the smallest linenumber > LINENO so far seen, | |
3659 | or 0 if none has been seen so far. | |
3660 | BEST_INDEX identifies the item for it. */ | |
3661 | ||
3662 | int best_index = -1; | |
3663 | int best = 0; | |
3664 | ||
b7589f7d DJ |
3665 | *exact_match = 0; |
3666 | ||
c906108c SS |
3667 | if (lineno <= 0) |
3668 | return -1; | |
3669 | if (l == 0) | |
3670 | return -1; | |
3671 | ||
3672 | len = l->nitems; | |
f8eba3c6 | 3673 | for (i = start; i < len; i++) |
c906108c | 3674 | { |
aa1ee363 | 3675 | struct linetable_entry *item = &(l->item[i]); |
c906108c | 3676 | |
8c95582d AB |
3677 | /* Ignore non-statements. */ |
3678 | if (!item->is_stmt) | |
3679 | continue; | |
3680 | ||
c906108c SS |
3681 | if (item->line == lineno) |
3682 | { | |
3683 | /* Return the first (lowest address) entry which matches. */ | |
3684 | *exact_match = 1; | |
3685 | return i; | |
3686 | } | |
3687 | ||
3688 | if (item->line > lineno && (best == 0 || item->line < best)) | |
3689 | { | |
3690 | best = item->line; | |
3691 | best_index = i; | |
3692 | } | |
3693 | } | |
3694 | ||
3695 | /* If we got here, we didn't get an exact match. */ | |
c906108c SS |
3696 | return best_index; |
3697 | } | |
3698 | ||
ececd218 | 3699 | bool |
fba45db2 | 3700 | find_pc_line_pc_range (CORE_ADDR pc, CORE_ADDR *startptr, CORE_ADDR *endptr) |
c906108c SS |
3701 | { |
3702 | struct symtab_and_line sal; | |
433759f7 | 3703 | |
c906108c SS |
3704 | sal = find_pc_line (pc, 0); |
3705 | *startptr = sal.pc; | |
3706 | *endptr = sal.end; | |
3707 | return sal.symtab != 0; | |
3708 | } | |
3709 | ||
cd2bb709 PA |
3710 | /* Helper for find_function_start_sal. Does most of the work, except |
3711 | setting the sal's symbol. */ | |
aab2f208 | 3712 | |
cd2bb709 PA |
3713 | static symtab_and_line |
3714 | find_function_start_sal_1 (CORE_ADDR func_addr, obj_section *section, | |
3715 | bool funfirstline) | |
aab2f208 | 3716 | { |
42ddae10 | 3717 | symtab_and_line sal = find_pc_sect_line (func_addr, section, 0); |
aab2f208 | 3718 | |
6e22494e | 3719 | if (funfirstline && sal.symtab != NULL |
c6159652 | 3720 | && (sal.symtab->compunit ()->locations_valid () |
1ee2e9f9 | 3721 | || sal.symtab->language () == language_asm)) |
6e22494e | 3722 | { |
65209971 | 3723 | struct gdbarch *gdbarch = sal.symtab->objfile ()->arch (); |
141c5cc4 | 3724 | |
42ddae10 | 3725 | sal.pc = func_addr; |
141c5cc4 JK |
3726 | if (gdbarch_skip_entrypoint_p (gdbarch)) |
3727 | sal.pc = gdbarch_skip_entrypoint (gdbarch, sal.pc); | |
6e22494e JK |
3728 | return sal; |
3729 | } | |
3730 | ||
aab2f208 | 3731 | /* We always should have a line for the function start address. |
42ddae10 | 3732 | If we don't, something is odd. Create a plain SAL referring |
aab2f208 DE |
3733 | just the PC and hope that skip_prologue_sal (if requested) |
3734 | can find a line number for after the prologue. */ | |
42ddae10 | 3735 | if (sal.pc < func_addr) |
aab2f208 | 3736 | { |
51abb421 | 3737 | sal = {}; |
aab2f208 | 3738 | sal.pspace = current_program_space; |
42ddae10 | 3739 | sal.pc = func_addr; |
08be3fe3 | 3740 | sal.section = section; |
aab2f208 DE |
3741 | } |
3742 | ||
3743 | if (funfirstline) | |
3744 | skip_prologue_sal (&sal); | |
3745 | ||
3746 | return sal; | |
3747 | } | |
3748 | ||
42ddae10 PA |
3749 | /* See symtab.h. */ |
3750 | ||
cd2bb709 PA |
3751 | symtab_and_line |
3752 | find_function_start_sal (CORE_ADDR func_addr, obj_section *section, | |
3753 | bool funfirstline) | |
3754 | { | |
3755 | symtab_and_line sal | |
3756 | = find_function_start_sal_1 (func_addr, section, funfirstline); | |
3757 | ||
3758 | /* find_function_start_sal_1 does a linetable search, so it finds | |
3759 | the symtab and linenumber, but not a symbol. Fill in the | |
3760 | function symbol too. */ | |
3761 | sal.symbol = find_pc_sect_containing_function (sal.pc, sal.section); | |
3762 | ||
3763 | return sal; | |
3764 | } | |
3765 | ||
3766 | /* See symtab.h. */ | |
3767 | ||
42ddae10 PA |
3768 | symtab_and_line |
3769 | find_function_start_sal (symbol *sym, bool funfirstline) | |
3770 | { | |
3771 | fixup_symbol_section (sym, NULL); | |
3772 | symtab_and_line sal | |
2b1ffcfd | 3773 | = find_function_start_sal_1 (BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (sym)), |
ebbc3a7d | 3774 | sym->obj_section (symbol_objfile (sym)), |
cd2bb709 | 3775 | funfirstline); |
42ddae10 PA |
3776 | sal.symbol = sym; |
3777 | return sal; | |
3778 | } | |
3779 | ||
3780 | ||
8c7a1ee8 EZ |
3781 | /* Given a function start address FUNC_ADDR and SYMTAB, find the first |
3782 | address for that function that has an entry in SYMTAB's line info | |
3783 | table. If such an entry cannot be found, return FUNC_ADDR | |
3784 | unaltered. */ | |
eca864fe | 3785 | |
70221824 | 3786 | static CORE_ADDR |
8c7a1ee8 EZ |
3787 | skip_prologue_using_lineinfo (CORE_ADDR func_addr, struct symtab *symtab) |
3788 | { | |
3789 | CORE_ADDR func_start, func_end; | |
3790 | struct linetable *l; | |
952a6d41 | 3791 | int i; |
8c7a1ee8 EZ |
3792 | |
3793 | /* Give up if this symbol has no lineinfo table. */ | |
5b607461 | 3794 | l = symtab->linetable (); |
8c7a1ee8 EZ |
3795 | if (l == NULL) |
3796 | return func_addr; | |
3797 | ||
3798 | /* Get the range for the function's PC values, or give up if we | |
3799 | cannot, for some reason. */ | |
3800 | if (!find_pc_partial_function (func_addr, NULL, &func_start, &func_end)) | |
3801 | return func_addr; | |
3802 | ||
3803 | /* Linetable entries are ordered by PC values, see the commentary in | |
3804 | symtab.h where `struct linetable' is defined. Thus, the first | |
3805 | entry whose PC is in the range [FUNC_START..FUNC_END[ is the | |
3806 | address we are looking for. */ | |
3807 | for (i = 0; i < l->nitems; i++) | |
3808 | { | |
3809 | struct linetable_entry *item = &(l->item[i]); | |
3810 | ||
3811 | /* Don't use line numbers of zero, they mark special entries in | |
3812 | the table. See the commentary on symtab.h before the | |
3813 | definition of struct linetable. */ | |
3814 | if (item->line > 0 && func_start <= item->pc && item->pc < func_end) | |
3815 | return item->pc; | |
3816 | } | |
3817 | ||
3818 | return func_addr; | |
3819 | } | |
3820 | ||
059acae7 UW |
3821 | /* Adjust SAL to the first instruction past the function prologue. |
3822 | If the PC was explicitly specified, the SAL is not changed. | |
5b0e2db4 AB |
3823 | If the line number was explicitly specified then the SAL can still be |
3824 | updated, unless the language for SAL is assembler, in which case the SAL | |
3825 | will be left unchanged. | |
3826 | If SAL is already past the prologue, then do nothing. */ | |
eca864fe | 3827 | |
059acae7 UW |
3828 | void |
3829 | skip_prologue_sal (struct symtab_and_line *sal) | |
3830 | { | |
3831 | struct symbol *sym; | |
3832 | struct symtab_and_line start_sal; | |
8be455d7 | 3833 | CORE_ADDR pc, saved_pc; |
059acae7 UW |
3834 | struct obj_section *section; |
3835 | const char *name; | |
3836 | struct objfile *objfile; | |
3837 | struct gdbarch *gdbarch; | |
3977b71f | 3838 | const struct block *b, *function_block; |
8be455d7 | 3839 | int force_skip, skip; |
c906108c | 3840 | |
a4b411d6 | 3841 | /* Do not change the SAL if PC was specified explicitly. */ |
059acae7 UW |
3842 | if (sal->explicit_pc) |
3843 | return; | |
6c95b8df | 3844 | |
5b0e2db4 AB |
3845 | /* In assembly code, if the user asks for a specific line then we should |
3846 | not adjust the SAL. The user already has instruction level | |
3847 | visibility in this case, so selecting a line other than one requested | |
3848 | is likely to be the wrong choice. */ | |
3849 | if (sal->symtab != nullptr | |
3850 | && sal->explicit_line | |
1ee2e9f9 | 3851 | && sal->symtab->language () == language_asm) |
5b0e2db4 AB |
3852 | return; |
3853 | ||
5ed8105e PA |
3854 | scoped_restore_current_pspace_and_thread restore_pspace_thread; |
3855 | ||
059acae7 | 3856 | switch_to_program_space_and_thread (sal->pspace); |
6c95b8df | 3857 | |
059acae7 UW |
3858 | sym = find_pc_sect_function (sal->pc, sal->section); |
3859 | if (sym != NULL) | |
bccdca4a | 3860 | { |
059acae7 UW |
3861 | fixup_symbol_section (sym, NULL); |
3862 | ||
08be3fe3 | 3863 | objfile = symbol_objfile (sym); |
2b1ffcfd | 3864 | pc = BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (sym)); |
ebbc3a7d | 3865 | section = sym->obj_section (objfile); |
987012b8 | 3866 | name = sym->linkage_name (); |
c906108c | 3867 | } |
059acae7 UW |
3868 | else |
3869 | { | |
7c7b6655 | 3870 | struct bound_minimal_symbol msymbol |
dda83cd7 | 3871 | = lookup_minimal_symbol_by_pc_section (sal->pc, sal->section); |
433759f7 | 3872 | |
7c7b6655 | 3873 | if (msymbol.minsym == NULL) |
5ed8105e | 3874 | return; |
059acae7 | 3875 | |
7c7b6655 | 3876 | objfile = msymbol.objfile; |
77e371c0 | 3877 | pc = BMSYMBOL_VALUE_ADDRESS (msymbol); |
ebbc3a7d | 3878 | section = msymbol.minsym->obj_section (objfile); |
c9d95fa3 | 3879 | name = msymbol.minsym->linkage_name (); |
059acae7 UW |
3880 | } |
3881 | ||
08feed99 | 3882 | gdbarch = objfile->arch (); |
059acae7 | 3883 | |
8be455d7 JK |
3884 | /* Process the prologue in two passes. In the first pass try to skip the |
3885 | prologue (SKIP is true) and verify there is a real need for it (indicated | |
3886 | by FORCE_SKIP). If no such reason was found run a second pass where the | |
3887 | prologue is not skipped (SKIP is false). */ | |
059acae7 | 3888 | |
8be455d7 JK |
3889 | skip = 1; |
3890 | force_skip = 1; | |
059acae7 | 3891 | |
8be455d7 JK |
3892 | /* Be conservative - allow direct PC (without skipping prologue) only if we |
3893 | have proven the CU (Compilation Unit) supports it. sal->SYMTAB does not | |
3894 | have to be set by the caller so we use SYM instead. */ | |
08be3fe3 | 3895 | if (sym != NULL |
c6159652 | 3896 | && symbol_symtab (sym)->compunit ()->locations_valid ()) |
8be455d7 | 3897 | force_skip = 0; |
059acae7 | 3898 | |
8be455d7 JK |
3899 | saved_pc = pc; |
3900 | do | |
c906108c | 3901 | { |
8be455d7 | 3902 | pc = saved_pc; |
4309257c | 3903 | |
8be455d7 JK |
3904 | /* If the function is in an unmapped overlay, use its unmapped LMA address, |
3905 | so that gdbarch_skip_prologue has something unique to work on. */ | |
3906 | if (section_is_overlay (section) && !section_is_mapped (section)) | |
3907 | pc = overlay_unmapped_address (pc, section); | |
3908 | ||
3909 | /* Skip "first line" of function (which is actually its prologue). */ | |
3910 | pc += gdbarch_deprecated_function_start_offset (gdbarch); | |
591a12a1 | 3911 | if (gdbarch_skip_entrypoint_p (gdbarch)) |
dda83cd7 | 3912 | pc = gdbarch_skip_entrypoint (gdbarch, pc); |
8be455d7 | 3913 | if (skip) |
46a62268 | 3914 | pc = gdbarch_skip_prologue_noexcept (gdbarch, pc); |
8be455d7 JK |
3915 | |
3916 | /* For overlays, map pc back into its mapped VMA range. */ | |
3917 | pc = overlay_mapped_address (pc, section); | |
3918 | ||
3919 | /* Calculate line number. */ | |
059acae7 | 3920 | start_sal = find_pc_sect_line (pc, section, 0); |
8be455d7 JK |
3921 | |
3922 | /* Check if gdbarch_skip_prologue left us in mid-line, and the next | |
3923 | line is still part of the same function. */ | |
3924 | if (skip && start_sal.pc != pc | |
2b1ffcfd | 3925 | && (sym ? (BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (sym)) <= start_sal.end |
b1d96efd | 3926 | && start_sal.end < BLOCK_END (SYMBOL_BLOCK_VALUE (sym))) |
7cbd4a93 TT |
3927 | : (lookup_minimal_symbol_by_pc_section (start_sal.end, section).minsym |
3928 | == lookup_minimal_symbol_by_pc_section (pc, section).minsym))) | |
8be455d7 JK |
3929 | { |
3930 | /* First pc of next line */ | |
3931 | pc = start_sal.end; | |
3932 | /* Recalculate the line number (might not be N+1). */ | |
3933 | start_sal = find_pc_sect_line (pc, section, 0); | |
3934 | } | |
3935 | ||
3936 | /* On targets with executable formats that don't have a concept of | |
3937 | constructors (ELF with .init has, PE doesn't), gcc emits a call | |
3938 | to `__main' in `main' between the prologue and before user | |
3939 | code. */ | |
3940 | if (gdbarch_skip_main_prologue_p (gdbarch) | |
7ccffd7c | 3941 | && name && strcmp_iw (name, "main") == 0) |
8be455d7 JK |
3942 | { |
3943 | pc = gdbarch_skip_main_prologue (gdbarch, pc); | |
3944 | /* Recalculate the line number (might not be N+1). */ | |
3945 | start_sal = find_pc_sect_line (pc, section, 0); | |
3946 | force_skip = 1; | |
3947 | } | |
4309257c | 3948 | } |
8be455d7 | 3949 | while (!force_skip && skip--); |
4309257c | 3950 | |
8c7a1ee8 EZ |
3951 | /* If we still don't have a valid source line, try to find the first |
3952 | PC in the lineinfo table that belongs to the same function. This | |
3953 | happens with COFF debug info, which does not seem to have an | |
3954 | entry in lineinfo table for the code after the prologue which has | |
3955 | no direct relation to source. For example, this was found to be | |
3956 | the case with the DJGPP target using "gcc -gcoff" when the | |
3957 | compiler inserted code after the prologue to make sure the stack | |
3958 | is aligned. */ | |
8be455d7 | 3959 | if (!force_skip && sym && start_sal.symtab == NULL) |
8c7a1ee8 | 3960 | { |
08be3fe3 | 3961 | pc = skip_prologue_using_lineinfo (pc, symbol_symtab (sym)); |
8c7a1ee8 | 3962 | /* Recalculate the line number. */ |
059acae7 | 3963 | start_sal = find_pc_sect_line (pc, section, 0); |
8c7a1ee8 EZ |
3964 | } |
3965 | ||
059acae7 UW |
3966 | /* If we're already past the prologue, leave SAL unchanged. Otherwise |
3967 | forward SAL to the end of the prologue. */ | |
3968 | if (sal->pc >= pc) | |
3969 | return; | |
3970 | ||
3971 | sal->pc = pc; | |
3972 | sal->section = section; | |
059acae7 UW |
3973 | sal->symtab = start_sal.symtab; |
3974 | sal->line = start_sal.line; | |
3975 | sal->end = start_sal.end; | |
c906108c | 3976 | |
edb3359d DJ |
3977 | /* Check if we are now inside an inlined function. If we can, |
3978 | use the call site of the function instead. */ | |
059acae7 | 3979 | b = block_for_pc_sect (sal->pc, sal->section); |
edb3359d DJ |
3980 | function_block = NULL; |
3981 | while (b != NULL) | |
3982 | { | |
3983 | if (BLOCK_FUNCTION (b) != NULL && block_inlined_p (b)) | |
3984 | function_block = b; | |
3985 | else if (BLOCK_FUNCTION (b) != NULL) | |
3986 | break; | |
3987 | b = BLOCK_SUPERBLOCK (b); | |
3988 | } | |
3989 | if (function_block != NULL | |
3990 | && SYMBOL_LINE (BLOCK_FUNCTION (function_block)) != 0) | |
3991 | { | |
059acae7 | 3992 | sal->line = SYMBOL_LINE (BLOCK_FUNCTION (function_block)); |
08be3fe3 | 3993 | sal->symtab = symbol_symtab (BLOCK_FUNCTION (function_block)); |
edb3359d | 3994 | } |
c906108c | 3995 | } |
50641945 | 3996 | |
f1f58506 DE |
3997 | /* Given PC at the function's start address, attempt to find the |
3998 | prologue end using SAL information. Return zero if the skip fails. | |
3999 | ||
4000 | A non-optimized prologue traditionally has one SAL for the function | |
4001 | and a second for the function body. A single line function has | |
4002 | them both pointing at the same line. | |
4003 | ||
4004 | An optimized prologue is similar but the prologue may contain | |
4005 | instructions (SALs) from the instruction body. Need to skip those | |
4006 | while not getting into the function body. | |
4007 | ||
4008 | The functions end point and an increasing SAL line are used as | |
4009 | indicators of the prologue's endpoint. | |
4010 | ||
4011 | This code is based on the function refine_prologue_limit | |
4012 | (found in ia64). */ | |
4013 | ||
4014 | CORE_ADDR | |
4015 | skip_prologue_using_sal (struct gdbarch *gdbarch, CORE_ADDR func_addr) | |
4016 | { | |
4017 | struct symtab_and_line prologue_sal; | |
4018 | CORE_ADDR start_pc; | |
4019 | CORE_ADDR end_pc; | |
4020 | const struct block *bl; | |
4021 | ||
4022 | /* Get an initial range for the function. */ | |
4023 | find_pc_partial_function (func_addr, NULL, &start_pc, &end_pc); | |
4024 | start_pc += gdbarch_deprecated_function_start_offset (gdbarch); | |
4025 | ||
4026 | prologue_sal = find_pc_line (start_pc, 0); | |
4027 | if (prologue_sal.line != 0) | |
4028 | { | |
4029 | /* For languages other than assembly, treat two consecutive line | |
4030 | entries at the same address as a zero-instruction prologue. | |
4031 | The GNU assembler emits separate line notes for each instruction | |
4032 | in a multi-instruction macro, but compilers generally will not | |
4033 | do this. */ | |
1ee2e9f9 | 4034 | if (prologue_sal.symtab->language () != language_asm) |
f1f58506 | 4035 | { |
5b607461 | 4036 | struct linetable *linetable = prologue_sal.symtab->linetable (); |
f1f58506 DE |
4037 | int idx = 0; |
4038 | ||
4039 | /* Skip any earlier lines, and any end-of-sequence marker | |
4040 | from a previous function. */ | |
4041 | while (linetable->item[idx].pc != prologue_sal.pc | |
4042 | || linetable->item[idx].line == 0) | |
4043 | idx++; | |
4044 | ||
4045 | if (idx+1 < linetable->nitems | |
4046 | && linetable->item[idx+1].line != 0 | |
4047 | && linetable->item[idx+1].pc == start_pc) | |
4048 | return start_pc; | |
4049 | } | |
4050 | ||
4051 | /* If there is only one sal that covers the entire function, | |
4052 | then it is probably a single line function, like | |
4053 | "foo(){}". */ | |
4054 | if (prologue_sal.end >= end_pc) | |
4055 | return 0; | |
4056 | ||
4057 | while (prologue_sal.end < end_pc) | |
4058 | { | |
4059 | struct symtab_and_line sal; | |
4060 | ||
4061 | sal = find_pc_line (prologue_sal.end, 0); | |
4062 | if (sal.line == 0) | |
4063 | break; | |
4064 | /* Assume that a consecutive SAL for the same (or larger) | |
4065 | line mark the prologue -> body transition. */ | |
4066 | if (sal.line >= prologue_sal.line) | |
4067 | break; | |
4068 | /* Likewise if we are in a different symtab altogether | |
4069 | (e.g. within a file included via #include). */ | |
4070 | if (sal.symtab != prologue_sal.symtab) | |
4071 | break; | |
4072 | ||
4073 | /* The line number is smaller. Check that it's from the | |
4074 | same function, not something inlined. If it's inlined, | |
4075 | then there is no point comparing the line numbers. */ | |
4076 | bl = block_for_pc (prologue_sal.end); | |
4077 | while (bl) | |
4078 | { | |
4079 | if (block_inlined_p (bl)) | |
4080 | break; | |
4081 | if (BLOCK_FUNCTION (bl)) | |
4082 | { | |
4083 | bl = NULL; | |
4084 | break; | |
4085 | } | |
4086 | bl = BLOCK_SUPERBLOCK (bl); | |
4087 | } | |
4088 | if (bl != NULL) | |
4089 | break; | |
4090 | ||
4091 | /* The case in which compiler's optimizer/scheduler has | |
4092 | moved instructions into the prologue. We look ahead in | |
4093 | the function looking for address ranges whose | |
4094 | corresponding line number is less the first one that we | |
4095 | found for the function. This is more conservative then | |
4096 | refine_prologue_limit which scans a large number of SALs | |
4097 | looking for any in the prologue. */ | |
4098 | prologue_sal = sal; | |
4099 | } | |
4100 | } | |
4101 | ||
4102 | if (prologue_sal.end < end_pc) | |
4103 | /* Return the end of this line, or zero if we could not find a | |
4104 | line. */ | |
4105 | return prologue_sal.end; | |
4106 | else | |
4107 | /* Don't return END_PC, which is past the end of the function. */ | |
4108 | return prologue_sal.pc; | |
4109 | } | |
bf223d3e PA |
4110 | |
4111 | /* See symtab.h. */ | |
4112 | ||
4113 | symbol * | |
4114 | find_function_alias_target (bound_minimal_symbol msymbol) | |
4115 | { | |
4024cf2b PA |
4116 | CORE_ADDR func_addr; |
4117 | if (!msymbol_is_function (msymbol.objfile, msymbol.minsym, &func_addr)) | |
bf223d3e PA |
4118 | return NULL; |
4119 | ||
4024cf2b | 4120 | symbol *sym = find_pc_function (func_addr); |
bf223d3e PA |
4121 | if (sym != NULL |
4122 | && SYMBOL_CLASS (sym) == LOC_BLOCK | |
2b1ffcfd | 4123 | && BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (sym)) == func_addr) |
bf223d3e PA |
4124 | return sym; |
4125 | ||
4126 | return NULL; | |
4127 | } | |
4128 | ||
f1f58506 | 4129 | \f |
c906108c SS |
4130 | /* If P is of the form "operator[ \t]+..." where `...' is |
4131 | some legitimate operator text, return a pointer to the | |
4132 | beginning of the substring of the operator text. | |
4133 | Otherwise, return "". */ | |
eca864fe | 4134 | |
96142726 TT |
4135 | static const char * |
4136 | operator_chars (const char *p, const char **end) | |
c906108c SS |
4137 | { |
4138 | *end = ""; | |
8090b426 | 4139 | if (!startswith (p, CP_OPERATOR_STR)) |
c906108c | 4140 | return *end; |
8090b426 | 4141 | p += CP_OPERATOR_LEN; |
c906108c SS |
4142 | |
4143 | /* Don't get faked out by `operator' being part of a longer | |
4144 | identifier. */ | |
c5aa993b | 4145 | if (isalpha (*p) || *p == '_' || *p == '$' || *p == '\0') |
c906108c SS |
4146 | return *end; |
4147 | ||
4148 | /* Allow some whitespace between `operator' and the operator symbol. */ | |
4149 | while (*p == ' ' || *p == '\t') | |
4150 | p++; | |
4151 | ||
c378eb4e | 4152 | /* Recognize 'operator TYPENAME'. */ |
c906108c | 4153 | |
c5aa993b | 4154 | if (isalpha (*p) || *p == '_' || *p == '$') |
c906108c | 4155 | { |
96142726 | 4156 | const char *q = p + 1; |
433759f7 | 4157 | |
c5aa993b | 4158 | while (isalnum (*q) || *q == '_' || *q == '$') |
c906108c SS |
4159 | q++; |
4160 | *end = q; | |
4161 | return p; | |
4162 | } | |
4163 | ||
53e8ad3d MS |
4164 | while (*p) |
4165 | switch (*p) | |
4166 | { | |
4167 | case '\\': /* regexp quoting */ | |
4168 | if (p[1] == '*') | |
4169 | { | |
3e43a32a | 4170 | if (p[2] == '=') /* 'operator\*=' */ |
53e8ad3d MS |
4171 | *end = p + 3; |
4172 | else /* 'operator\*' */ | |
4173 | *end = p + 2; | |
4174 | return p; | |
4175 | } | |
4176 | else if (p[1] == '[') | |
4177 | { | |
4178 | if (p[2] == ']') | |
3e43a32a MS |
4179 | error (_("mismatched quoting on brackets, " |
4180 | "try 'operator\\[\\]'")); | |
53e8ad3d MS |
4181 | else if (p[2] == '\\' && p[3] == ']') |
4182 | { | |
4183 | *end = p + 4; /* 'operator\[\]' */ | |
4184 | return p; | |
4185 | } | |
4186 | else | |
8a3fe4f8 | 4187 | error (_("nothing is allowed between '[' and ']'")); |
53e8ad3d | 4188 | } |
9af17804 | 4189 | else |
53e8ad3d | 4190 | { |
85102364 | 4191 | /* Gratuitous quote: skip it and move on. */ |
53e8ad3d MS |
4192 | p++; |
4193 | continue; | |
4194 | } | |
4195 | break; | |
4196 | case '!': | |
4197 | case '=': | |
4198 | case '*': | |
4199 | case '/': | |
4200 | case '%': | |
4201 | case '^': | |
4202 | if (p[1] == '=') | |
4203 | *end = p + 2; | |
4204 | else | |
4205 | *end = p + 1; | |
4206 | return p; | |
4207 | case '<': | |
4208 | case '>': | |
4209 | case '+': | |
4210 | case '-': | |
4211 | case '&': | |
4212 | case '|': | |
4213 | if (p[0] == '-' && p[1] == '>') | |
4214 | { | |
c378eb4e | 4215 | /* Struct pointer member operator 'operator->'. */ |
53e8ad3d MS |
4216 | if (p[2] == '*') |
4217 | { | |
4218 | *end = p + 3; /* 'operator->*' */ | |
4219 | return p; | |
4220 | } | |
4221 | else if (p[2] == '\\') | |
4222 | { | |
4223 | *end = p + 4; /* Hopefully 'operator->\*' */ | |
4224 | return p; | |
4225 | } | |
4226 | else | |
4227 | { | |
4228 | *end = p + 2; /* 'operator->' */ | |
4229 | return p; | |
4230 | } | |
4231 | } | |
4232 | if (p[1] == '=' || p[1] == p[0]) | |
4233 | *end = p + 2; | |
4234 | else | |
4235 | *end = p + 1; | |
4236 | return p; | |
4237 | case '~': | |
4238 | case ',': | |
c5aa993b | 4239 | *end = p + 1; |
53e8ad3d MS |
4240 | return p; |
4241 | case '(': | |
4242 | if (p[1] != ')') | |
3e43a32a MS |
4243 | error (_("`operator ()' must be specified " |
4244 | "without whitespace in `()'")); | |
c5aa993b | 4245 | *end = p + 2; |
53e8ad3d MS |
4246 | return p; |
4247 | case '?': | |
4248 | if (p[1] != ':') | |
3e43a32a MS |
4249 | error (_("`operator ?:' must be specified " |
4250 | "without whitespace in `?:'")); | |
53e8ad3d MS |
4251 | *end = p + 2; |
4252 | return p; | |
4253 | case '[': | |
4254 | if (p[1] != ']') | |
3e43a32a MS |
4255 | error (_("`operator []' must be specified " |
4256 | "without whitespace in `[]'")); | |
53e8ad3d MS |
4257 | *end = p + 2; |
4258 | return p; | |
4259 | default: | |
8a3fe4f8 | 4260 | error (_("`operator %s' not supported"), p); |
53e8ad3d MS |
4261 | break; |
4262 | } | |
4263 | ||
c906108c SS |
4264 | *end = ""; |
4265 | return *end; | |
4266 | } | |
c906108c | 4267 | \f |
c5aa993b | 4268 | |
4a0788e0 | 4269 | /* See class declaration. */ |
9fdc877b | 4270 | |
4a0788e0 AB |
4271 | info_sources_filter::info_sources_filter (match_on match_type, |
4272 | const char *regexp) | |
4273 | : m_match_type (match_type), | |
4274 | m_regexp (regexp) | |
9fdc877b | 4275 | { |
4a0788e0 AB |
4276 | /* Setup the compiled regular expression M_C_REGEXP based on M_REGEXP. */ |
4277 | if (m_regexp != nullptr && *m_regexp != '\0') | |
4278 | { | |
4279 | gdb_assert (m_regexp != nullptr); | |
28cd9371 | 4280 | |
4a0788e0 AB |
4281 | int cflags = REG_NOSUB; |
4282 | #ifdef HAVE_CASE_INSENSITIVE_FILE_SYSTEM | |
4283 | cflags |= REG_ICASE; | |
4284 | #endif | |
4285 | m_c_regexp.emplace (m_regexp, cflags, _("Invalid regexp")); | |
4286 | } | |
4287 | } | |
28cd9371 | 4288 | |
4a0788e0 | 4289 | /* See class declaration. */ |
9fdc877b | 4290 | |
4a0788e0 AB |
4291 | bool |
4292 | info_sources_filter::matches (const char *fullname) const | |
4293 | { | |
4294 | /* Does it match regexp? */ | |
4295 | if (m_c_regexp.has_value ()) | |
4296 | { | |
4297 | const char *to_match; | |
4298 | std::string dirname; | |
4299 | ||
4300 | switch (m_match_type) | |
4301 | { | |
4302 | case match_on::DIRNAME: | |
4303 | dirname = ldirname (fullname); | |
4304 | to_match = dirname.c_str (); | |
4305 | break; | |
4306 | case match_on::BASENAME: | |
4307 | to_match = lbasename (fullname); | |
4308 | break; | |
4309 | case match_on::FULLNAME: | |
4310 | to_match = fullname; | |
4311 | break; | |
b6aeb717 TT |
4312 | default: |
4313 | gdb_assert_not_reached ("bad m_match_type"); | |
4a0788e0 AB |
4314 | } |
4315 | ||
4316 | if (m_c_regexp->exec (to_match, 0, NULL, 0) != 0) | |
4317 | return false; | |
4318 | } | |
4319 | ||
4320 | return true; | |
4321 | } | |
4322 | ||
4a0788e0 AB |
4323 | /* Data structure to maintain the state used for printing the results of |
4324 | the 'info sources' command. */ | |
4325 | ||
4326 | struct output_source_filename_data | |
4327 | { | |
4328 | /* Create an object for displaying the results of the 'info sources' | |
0e350a05 AB |
4329 | command to UIOUT. FILTER must remain valid and unchanged for the |
4330 | lifetime of this object as this object retains a reference to FILTER. */ | |
4331 | output_source_filename_data (struct ui_out *uiout, | |
4332 | const info_sources_filter &filter) | |
4333 | : m_filter (filter), | |
4334 | m_uiout (uiout) | |
4a0788e0 AB |
4335 | { /* Nothing. */ } |
4336 | ||
4337 | DISABLE_COPY_AND_ASSIGN (output_source_filename_data); | |
4338 | ||
4339 | /* Reset enough state of this object so we can match against a new set of | |
4340 | files. The existing regular expression is retained though. */ | |
4341 | void reset_output () | |
4342 | { | |
4343 | m_first = true; | |
4344 | m_filename_seen_cache.clear (); | |
4345 | } | |
4346 | ||
0e350a05 AB |
4347 | /* Worker for sources_info, outputs the file name formatted for either |
4348 | cli or mi (based on the current_uiout). In cli mode displays | |
4349 | FULLNAME with a comma separating this name from any previously | |
4350 | printed name (line breaks are added at the comma). In MI mode | |
4351 | outputs a tuple containing DISP_NAME (the files display name), | |
4352 | FULLNAME, and EXPANDED_P (true when this file is from a fully | |
4353 | expanded symtab, otherwise false). */ | |
4354 | void output (const char *disp_name, const char *fullname, bool expanded_p); | |
eca864fe | 4355 | |
f4655dee TT |
4356 | /* An overload suitable for use as a callback to |
4357 | quick_symbol_functions::map_symbol_filenames. */ | |
4358 | void operator() (const char *filename, const char *fullname) | |
4359 | { | |
0e350a05 AB |
4360 | /* The false here indicates that this file is from an unexpanded |
4361 | symtab. */ | |
4362 | output (filename, fullname, false); | |
f4655dee | 4363 | } |
4a0788e0 | 4364 | |
bd742128 AB |
4365 | /* Return true if at least one filename has been printed (after a call to |
4366 | output) since either this object was created, or the last call to | |
4367 | reset_output. */ | |
4368 | bool printed_filename_p () const | |
4369 | { | |
4370 | return !m_first; | |
4371 | } | |
4372 | ||
4a0788e0 AB |
4373 | private: |
4374 | ||
4375 | /* Flag of whether we're printing the first one. */ | |
4376 | bool m_first = true; | |
4377 | ||
4378 | /* Cache of what we've seen so far. */ | |
4379 | filename_seen_cache m_filename_seen_cache; | |
4380 | ||
4381 | /* How source filename should be filtered. */ | |
4382 | const info_sources_filter &m_filter; | |
0e350a05 AB |
4383 | |
4384 | /* The object to which output is sent. */ | |
4385 | struct ui_out *m_uiout; | |
f4655dee TT |
4386 | }; |
4387 | ||
4a0788e0 AB |
4388 | /* See comment in class declaration above. */ |
4389 | ||
f4655dee | 4390 | void |
0e350a05 AB |
4391 | output_source_filename_data::output (const char *disp_name, |
4392 | const char *fullname, | |
4393 | bool expanded_p) | |
c94fdfd0 EZ |
4394 | { |
4395 | /* Since a single source file can result in several partial symbol | |
4396 | tables, we need to avoid printing it more than once. Note: if | |
4397 | some of the psymtabs are read in and some are not, it gets | |
4398 | printed both under "Source files for which symbols have been | |
4399 | read" and "Source files for which symbols will be read in on | |
4400 | demand". I consider this a reasonable way to deal with the | |
4401 | situation. I'm not sure whether this can also happen for | |
4402 | symtabs; it doesn't hurt to check. */ | |
4403 | ||
4a0788e0 | 4404 | /* Was NAME already seen? If so, then don't print it again. */ |
0e350a05 | 4405 | if (m_filename_seen_cache.seen (fullname)) |
4a0788e0 | 4406 | return; |
28cd9371 | 4407 | |
4a0788e0 | 4408 | /* If the filter rejects this file then don't print it. */ |
0e350a05 | 4409 | if (!m_filter.matches (fullname)) |
4a0788e0 | 4410 | return; |
28cd9371 | 4411 | |
0e350a05 AB |
4412 | ui_out_emit_tuple ui_emitter (m_uiout, nullptr); |
4413 | ||
28cd9371 | 4414 | /* Print it and reset *FIRST. */ |
4a0788e0 | 4415 | if (!m_first) |
0e350a05 | 4416 | m_uiout->text (", "); |
4a0788e0 | 4417 | m_first = false; |
c906108c | 4418 | |
1285ce86 | 4419 | m_uiout->wrap_hint (0); |
0e350a05 AB |
4420 | if (m_uiout->is_mi_like_p ()) |
4421 | { | |
4422 | m_uiout->field_string ("file", disp_name, file_name_style.style ()); | |
4423 | if (fullname != nullptr) | |
4424 | m_uiout->field_string ("fullname", fullname, | |
4425 | file_name_style.style ()); | |
4426 | m_uiout->field_string ("debug-fully-read", | |
4427 | (expanded_p ? "true" : "false")); | |
4428 | } | |
4429 | else | |
4430 | { | |
4431 | if (fullname == nullptr) | |
4432 | fullname = disp_name; | |
4433 | m_uiout->field_string ("fullname", fullname, | |
4434 | file_name_style.style ()); | |
4435 | } | |
c5aa993b | 4436 | } |
c906108c | 4437 | |
4a0788e0 AB |
4438 | /* For the 'info sources' command, what part of the file names should we be |
4439 | matching the user supplied regular expression against? */ | |
4440 | ||
4441 | struct filename_partial_match_opts | |
4442 | { | |
4443 | /* Only match the directory name part. */ | |
4444 | bool dirname = false; | |
4445 | ||
4446 | /* Only match the basename part. */ | |
4447 | bool basename = false; | |
4448 | }; | |
4449 | ||
28cd9371 PW |
4450 | using isrc_flag_option_def |
4451 | = gdb::option::flag_option_def<filename_partial_match_opts>; | |
4452 | ||
4453 | static const gdb::option::option_def info_sources_option_defs[] = { | |
4454 | ||
4455 | isrc_flag_option_def { | |
4456 | "dirname", | |
4457 | [] (filename_partial_match_opts *opts) { return &opts->dirname; }, | |
4458 | N_("Show only the files having a dirname matching REGEXP."), | |
4459 | }, | |
4460 | ||
4461 | isrc_flag_option_def { | |
4462 | "basename", | |
4463 | [] (filename_partial_match_opts *opts) { return &opts->basename; }, | |
4464 | N_("Show only the files having a basename matching REGEXP."), | |
4465 | }, | |
4466 | ||
4467 | }; | |
4468 | ||
4469 | /* Create an option_def_group for the "info sources" options, with | |
4470 | ISRC_OPTS as context. */ | |
4471 | ||
4472 | static inline gdb::option::option_def_group | |
4473 | make_info_sources_options_def_group (filename_partial_match_opts *isrc_opts) | |
4474 | { | |
4475 | return {{info_sources_option_defs}, isrc_opts}; | |
4476 | } | |
4477 | ||
28cd9371 PW |
4478 | /* Completer for "info sources". */ |
4479 | ||
4480 | static void | |
4481 | info_sources_command_completer (cmd_list_element *ignore, | |
4482 | completion_tracker &tracker, | |
4483 | const char *text, const char *word) | |
4484 | { | |
4485 | const auto group = make_info_sources_options_def_group (nullptr); | |
4486 | if (gdb::option::complete_options | |
4487 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
4488 | return; | |
4489 | } | |
4490 | ||
0e350a05 AB |
4491 | /* See symtab.h. */ |
4492 | ||
4493 | void | |
4494 | info_sources_worker (struct ui_out *uiout, | |
1fb1ce02 | 4495 | bool group_by_objfile, |
0e350a05 AB |
4496 | const info_sources_filter &filter) |
4497 | { | |
4498 | output_source_filename_data data (uiout, filter); | |
4499 | ||
4500 | ui_out_emit_list results_emitter (uiout, "files"); | |
4501 | gdb::optional<ui_out_emit_tuple> output_tuple; | |
4502 | gdb::optional<ui_out_emit_list> sources_list; | |
4503 | ||
bd742128 | 4504 | gdb_assert (group_by_objfile || uiout->is_mi_like_p ()); |
0e350a05 AB |
4505 | |
4506 | for (objfile *objfile : current_program_space->objfiles ()) | |
4507 | { | |
1fb1ce02 AB |
4508 | if (group_by_objfile) |
4509 | { | |
4510 | output_tuple.emplace (uiout, nullptr); | |
4511 | uiout->field_string ("filename", objfile_name (objfile)); | |
bd742128 | 4512 | uiout->text (":\n"); |
1fb1ce02 | 4513 | bool debug_fully_readin = !objfile->has_unexpanded_symtabs (); |
bd742128 | 4514 | if (uiout->is_mi_like_p ()) |
1fb1ce02 | 4515 | { |
bd742128 AB |
4516 | const char *debug_info_state; |
4517 | if (objfile_has_symbols (objfile)) | |
4518 | { | |
4519 | if (debug_fully_readin) | |
4520 | debug_info_state = "fully-read"; | |
4521 | else | |
4522 | debug_info_state = "partially-read"; | |
4523 | } | |
1fb1ce02 | 4524 | else |
bd742128 AB |
4525 | debug_info_state = "none"; |
4526 | current_uiout->field_string ("debug-info", debug_info_state); | |
1fb1ce02 AB |
4527 | } |
4528 | else | |
bd742128 AB |
4529 | { |
4530 | if (!debug_fully_readin) | |
4531 | uiout->text ("(Full debug information has not yet been read " | |
4532 | "for this file.)\n"); | |
4533 | if (!objfile_has_symbols (objfile)) | |
4534 | uiout->text ("(Objfile has no debug information.)\n"); | |
4535 | uiout->text ("\n"); | |
4536 | } | |
1fb1ce02 AB |
4537 | sources_list.emplace (uiout, "sources"); |
4538 | } | |
4539 | ||
0e350a05 AB |
4540 | for (compunit_symtab *cu : objfile->compunits ()) |
4541 | { | |
102cc235 | 4542 | for (symtab *s : cu->filetabs ()) |
0e350a05 AB |
4543 | { |
4544 | const char *file = symtab_to_filename_for_display (s); | |
4545 | const char *fullname = symtab_to_fullname (s); | |
4546 | data.output (file, fullname, true); | |
4547 | } | |
4548 | } | |
1fb1ce02 AB |
4549 | |
4550 | if (group_by_objfile) | |
4551 | { | |
4552 | objfile->map_symbol_filenames (data, true /* need_fullname */); | |
bd742128 AB |
4553 | if (data.printed_filename_p ()) |
4554 | uiout->text ("\n\n"); | |
1fb1ce02 AB |
4555 | data.reset_output (); |
4556 | sources_list.reset (); | |
4557 | output_tuple.reset (); | |
4558 | } | |
0e350a05 AB |
4559 | } |
4560 | ||
1fb1ce02 AB |
4561 | if (!group_by_objfile) |
4562 | { | |
1fb1ce02 AB |
4563 | data.reset_output (); |
4564 | map_symbol_filenames (data, true /*need_fullname*/); | |
1fb1ce02 | 4565 | } |
0e350a05 AB |
4566 | } |
4567 | ||
4a0788e0 AB |
4568 | /* Implement the 'info sources' command. */ |
4569 | ||
28cd9371 PW |
4570 | static void |
4571 | info_sources_command (const char *args, int from_tty) | |
c906108c | 4572 | { |
c906108c | 4573 | if (!have_full_symbols () && !have_partial_symbols ()) |
4a0788e0 | 4574 | error (_("No symbol table is loaded. Use the \"file\" command.")); |
28cd9371 | 4575 | |
4a0788e0 AB |
4576 | filename_partial_match_opts match_opts; |
4577 | auto group = make_info_sources_options_def_group (&match_opts); | |
28cd9371 PW |
4578 | gdb::option::process_options |
4579 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_ERROR, group); | |
9fdc877b | 4580 | |
4a0788e0 AB |
4581 | if (match_opts.dirname && match_opts.basename) |
4582 | error (_("You cannot give both -basename and -dirname to 'info sources'.")); | |
c906108c | 4583 | |
4a0788e0 | 4584 | const char *regex = nullptr; |
0e350a05 | 4585 | if (args != NULL && *args != '\000') |
4a0788e0 | 4586 | regex = args; |
28cd9371 | 4587 | |
4a0788e0 AB |
4588 | if ((match_opts.dirname || match_opts.basename) && regex == nullptr) |
4589 | error (_("Missing REGEXP for 'info sources'.")); | |
28cd9371 | 4590 | |
4a0788e0 AB |
4591 | info_sources_filter::match_on match_type; |
4592 | if (match_opts.dirname) | |
4593 | match_type = info_sources_filter::match_on::DIRNAME; | |
4594 | else if (match_opts.basename) | |
4595 | match_type = info_sources_filter::match_on::BASENAME; | |
28cd9371 | 4596 | else |
4a0788e0 AB |
4597 | match_type = info_sources_filter::match_on::FULLNAME; |
4598 | ||
4599 | info_sources_filter filter (match_type, regex); | |
bd742128 | 4600 | info_sources_worker (current_uiout, true, filter); |
c906108c SS |
4601 | } |
4602 | ||
470c0b1c AB |
4603 | /* Compare FILE against all the entries of FILENAMES. If BASENAMES is |
4604 | true compare only lbasename of FILENAMES. */ | |
fbd9ab74 | 4605 | |
470c0b1c AB |
4606 | static bool |
4607 | file_matches (const char *file, const std::vector<const char *> &filenames, | |
4608 | bool basenames) | |
c906108c | 4609 | { |
470c0b1c AB |
4610 | if (filenames.empty ()) |
4611 | return true; | |
c906108c | 4612 | |
470c0b1c | 4613 | for (const char *name : filenames) |
c906108c | 4614 | { |
470c0b1c AB |
4615 | name = (basenames ? lbasename (name) : name); |
4616 | if (compare_filenames_for_search (file, name)) | |
4617 | return true; | |
c906108c | 4618 | } |
470c0b1c AB |
4619 | |
4620 | return false; | |
c906108c SS |
4621 | } |
4622 | ||
f97a63c5 AB |
4623 | /* Helper function for std::sort on symbol_search objects. Can only sort |
4624 | symbols, not minimal symbols. */ | |
eca864fe | 4625 | |
b9c04fb2 TT |
4626 | int |
4627 | symbol_search::compare_search_syms (const symbol_search &sym_a, | |
4628 | const symbol_search &sym_b) | |
434d2d4f | 4629 | { |
b52109bc DE |
4630 | int c; |
4631 | ||
b9c04fb2 TT |
4632 | c = FILENAME_CMP (symbol_symtab (sym_a.symbol)->filename, |
4633 | symbol_symtab (sym_b.symbol)->filename); | |
b52109bc DE |
4634 | if (c != 0) |
4635 | return c; | |
434d2d4f | 4636 | |
b9c04fb2 TT |
4637 | if (sym_a.block != sym_b.block) |
4638 | return sym_a.block - sym_b.block; | |
b52109bc | 4639 | |
987012b8 | 4640 | return strcmp (sym_a.symbol->print_name (), sym_b.symbol->print_name ()); |
434d2d4f DJ |
4641 | } |
4642 | ||
12615cba PW |
4643 | /* Returns true if the type_name of symbol_type of SYM matches TREG. |
4644 | If SYM has no symbol_type or symbol_name, returns false. */ | |
4645 | ||
4646 | bool | |
4647 | treg_matches_sym_type_name (const compiled_regex &treg, | |
4648 | const struct symbol *sym) | |
4649 | { | |
4650 | struct type *sym_type; | |
4651 | std::string printed_sym_type_name; | |
4652 | ||
4653 | if (symbol_lookup_debug > 1) | |
4654 | { | |
4655 | fprintf_unfiltered (gdb_stdlog, | |
4656 | "treg_matches_sym_type_name\n sym %s\n", | |
987012b8 | 4657 | sym->natural_name ()); |
12615cba PW |
4658 | } |
4659 | ||
4660 | sym_type = SYMBOL_TYPE (sym); | |
4661 | if (sym_type == NULL) | |
4662 | return false; | |
4663 | ||
43d397ca PW |
4664 | { |
4665 | scoped_switch_to_sym_language_if_auto l (sym); | |
12615cba | 4666 | |
12615cba | 4667 | printed_sym_type_name = type_to_string (sym_type); |
43d397ca PW |
4668 | } |
4669 | ||
12615cba PW |
4670 | |
4671 | if (symbol_lookup_debug > 1) | |
4672 | { | |
4673 | fprintf_unfiltered (gdb_stdlog, | |
4674 | " sym_type_name %s\n", | |
4675 | printed_sym_type_name.c_str ()); | |
4676 | } | |
4677 | ||
4678 | ||
4679 | if (printed_sym_type_name.empty ()) | |
4680 | return false; | |
4681 | ||
4682 | return treg.exec (printed_sym_type_name.c_str (), 0, NULL, 0) == 0; | |
4683 | } | |
4684 | ||
f97a63c5 AB |
4685 | /* See symtab.h. */ |
4686 | ||
4687 | bool | |
4688 | global_symbol_searcher::is_suitable_msymbol | |
4689 | (const enum search_domain kind, const minimal_symbol *msymbol) | |
4690 | { | |
4691 | switch (MSYMBOL_TYPE (msymbol)) | |
4692 | { | |
4693 | case mst_data: | |
4694 | case mst_bss: | |
4695 | case mst_file_data: | |
4696 | case mst_file_bss: | |
4697 | return kind == VARIABLES_DOMAIN; | |
4698 | case mst_text: | |
4699 | case mst_file_text: | |
4700 | case mst_solib_trampoline: | |
4701 | case mst_text_gnu_ifunc: | |
4702 | return kind == FUNCTIONS_DOMAIN; | |
4703 | default: | |
4704 | return false; | |
4705 | } | |
4706 | } | |
4707 | ||
4708 | /* See symtab.h. */ | |
4709 | ||
4710 | bool | |
4711 | global_symbol_searcher::expand_symtabs | |
4712 | (objfile *objfile, const gdb::optional<compiled_regex> &preg) const | |
4713 | { | |
4714 | enum search_domain kind = m_kind; | |
4715 | bool found_msymbol = false; | |
4716 | ||
c5a9fcdf TT |
4717 | auto do_file_match = [&] (const char *filename, bool basenames) |
4718 | { | |
4719 | return file_matches (filename, filenames, basenames); | |
4720 | }; | |
4721 | gdb::function_view<expand_symtabs_file_matcher_ftype> file_matcher = nullptr; | |
4722 | if (!filenames.empty ()) | |
4723 | file_matcher = do_file_match; | |
4724 | ||
4d080b46 | 4725 | objfile->expand_symtabs_matching |
c5a9fcdf | 4726 | (file_matcher, |
4d080b46 TT |
4727 | &lookup_name_info::match_any (), |
4728 | [&] (const char *symname) | |
4729 | { | |
4730 | return (!preg.has_value () | |
4731 | || preg->exec (symname, 0, NULL, 0) == 0); | |
4732 | }, | |
4733 | NULL, | |
03a8ea51 | 4734 | SEARCH_GLOBAL_BLOCK | SEARCH_STATIC_BLOCK, |
3bfa51a7 | 4735 | UNDEF_DOMAIN, |
4d080b46 | 4736 | kind); |
f97a63c5 AB |
4737 | |
4738 | /* Here, we search through the minimal symbol tables for functions and | |
4739 | variables that match, and force their symbols to be read. This is in | |
4740 | particular necessary for demangled variable names, which are no longer | |
4741 | put into the partial symbol tables. The symbol will then be found | |
4742 | during the scan of symtabs later. | |
4743 | ||
4744 | For functions, find_pc_symtab should succeed if we have debug info for | |
4745 | the function, for variables we have to call | |
4746 | lookup_symbol_in_objfile_from_linkage_name to determine if the | |
4747 | variable has debug info. If the lookup fails, set found_msymbol so | |
4748 | that we will rescan to print any matching symbols without debug info. | |
4749 | We only search the objfile the msymbol came from, we no longer search | |
4750 | all objfiles. In large programs (1000s of shared libs) searching all | |
4751 | objfiles is not worth the pain. */ | |
4752 | if (filenames.empty () | |
4753 | && (kind == VARIABLES_DOMAIN || kind == FUNCTIONS_DOMAIN)) | |
4754 | { | |
4755 | for (minimal_symbol *msymbol : objfile->msymbols ()) | |
4756 | { | |
4757 | QUIT; | |
4758 | ||
4759 | if (msymbol->created_by_gdb) | |
4760 | continue; | |
4761 | ||
4762 | if (is_suitable_msymbol (kind, msymbol)) | |
4763 | { | |
4764 | if (!preg.has_value () | |
4765 | || preg->exec (msymbol->natural_name (), 0, | |
4766 | NULL, 0) == 0) | |
4767 | { | |
4768 | /* An important side-effect of these lookup functions is | |
4769 | to expand the symbol table if msymbol is found, later | |
4770 | in the process we will add matching symbols or | |
4771 | msymbols to the results list, and that requires that | |
4772 | the symbols tables are expanded. */ | |
4773 | if (kind == FUNCTIONS_DOMAIN | |
4774 | ? (find_pc_compunit_symtab | |
4775 | (MSYMBOL_VALUE_ADDRESS (objfile, msymbol)) | |
4776 | == NULL) | |
4777 | : (lookup_symbol_in_objfile_from_linkage_name | |
4778 | (objfile, msymbol->linkage_name (), | |
4779 | VAR_DOMAIN) | |
4780 | .symbol == NULL)) | |
4781 | found_msymbol = true; | |
4782 | } | |
4783 | } | |
4784 | } | |
4785 | } | |
4786 | ||
4787 | return found_msymbol; | |
4788 | } | |
4789 | ||
4790 | /* See symtab.h. */ | |
4791 | ||
c2512106 | 4792 | bool |
f97a63c5 AB |
4793 | global_symbol_searcher::add_matching_symbols |
4794 | (objfile *objfile, | |
4795 | const gdb::optional<compiled_regex> &preg, | |
4796 | const gdb::optional<compiled_regex> &treg, | |
c2512106 | 4797 | std::set<symbol_search> *result_set) const |
f97a63c5 AB |
4798 | { |
4799 | enum search_domain kind = m_kind; | |
4800 | ||
4801 | /* Add matching symbols (if not already present). */ | |
4802 | for (compunit_symtab *cust : objfile->compunits ()) | |
4803 | { | |
af39c5c8 | 4804 | const struct blockvector *bv = cust->blockvector (); |
f97a63c5 AB |
4805 | |
4806 | for (block_enum block : { GLOBAL_BLOCK, STATIC_BLOCK }) | |
4807 | { | |
4808 | struct block_iterator iter; | |
4809 | struct symbol *sym; | |
4810 | const struct block *b = BLOCKVECTOR_BLOCK (bv, block); | |
4811 | ||
4812 | ALL_BLOCK_SYMBOLS (b, iter, sym) | |
4813 | { | |
4814 | struct symtab *real_symtab = symbol_symtab (sym); | |
4815 | ||
4816 | QUIT; | |
4817 | ||
4818 | /* Check first sole REAL_SYMTAB->FILENAME. It does | |
4819 | not need to be a substring of symtab_to_fullname as | |
4820 | it may contain "./" etc. */ | |
4821 | if ((file_matches (real_symtab->filename, filenames, false) | |
4822 | || ((basenames_may_differ | |
4823 | || file_matches (lbasename (real_symtab->filename), | |
4824 | filenames, true)) | |
4825 | && file_matches (symtab_to_fullname (real_symtab), | |
4826 | filenames, false))) | |
4827 | && ((!preg.has_value () | |
4828 | || preg->exec (sym->natural_name (), 0, | |
4829 | NULL, 0) == 0) | |
4830 | && ((kind == VARIABLES_DOMAIN | |
4831 | && SYMBOL_CLASS (sym) != LOC_TYPEDEF | |
4832 | && SYMBOL_CLASS (sym) != LOC_UNRESOLVED | |
4833 | && SYMBOL_CLASS (sym) != LOC_BLOCK | |
4834 | /* LOC_CONST can be used for more than | |
4835 | just enums, e.g., c++ static const | |
4836 | members. We only want to skip enums | |
4837 | here. */ | |
4838 | && !(SYMBOL_CLASS (sym) == LOC_CONST | |
78134374 | 4839 | && (SYMBOL_TYPE (sym)->code () |
f97a63c5 AB |
4840 | == TYPE_CODE_ENUM)) |
4841 | && (!treg.has_value () | |
4842 | || treg_matches_sym_type_name (*treg, sym))) | |
4843 | || (kind == FUNCTIONS_DOMAIN | |
4844 | && SYMBOL_CLASS (sym) == LOC_BLOCK | |
4845 | && (!treg.has_value () | |
4846 | || treg_matches_sym_type_name (*treg, | |
4847 | sym))) | |
4848 | || (kind == TYPES_DOMAIN | |
4849 | && SYMBOL_CLASS (sym) == LOC_TYPEDEF | |
4850 | && SYMBOL_DOMAIN (sym) != MODULE_DOMAIN) | |
4851 | || (kind == MODULES_DOMAIN | |
4852 | && SYMBOL_DOMAIN (sym) == MODULE_DOMAIN | |
4853 | && SYMBOL_LINE (sym) != 0)))) | |
4854 | { | |
c2512106 AB |
4855 | if (result_set->size () < m_max_search_results) |
4856 | { | |
4857 | /* Match, insert if not already in the results. */ | |
4858 | symbol_search ss (block, sym); | |
4859 | if (result_set->find (ss) == result_set->end ()) | |
4860 | result_set->insert (ss); | |
4861 | } | |
4862 | else | |
4863 | return false; | |
f97a63c5 AB |
4864 | } |
4865 | } | |
4866 | } | |
4867 | } | |
c2512106 AB |
4868 | |
4869 | return true; | |
f97a63c5 AB |
4870 | } |
4871 | ||
4872 | /* See symtab.h. */ | |
4873 | ||
c2512106 | 4874 | bool |
f97a63c5 AB |
4875 | global_symbol_searcher::add_matching_msymbols |
4876 | (objfile *objfile, const gdb::optional<compiled_regex> &preg, | |
4877 | std::vector<symbol_search> *results) const | |
4878 | { | |
4879 | enum search_domain kind = m_kind; | |
4880 | ||
4881 | for (minimal_symbol *msymbol : objfile->msymbols ()) | |
4882 | { | |
4883 | QUIT; | |
4884 | ||
4885 | if (msymbol->created_by_gdb) | |
4886 | continue; | |
4887 | ||
4888 | if (is_suitable_msymbol (kind, msymbol)) | |
4889 | { | |
4890 | if (!preg.has_value () | |
4891 | || preg->exec (msymbol->natural_name (), 0, | |
4892 | NULL, 0) == 0) | |
4893 | { | |
4894 | /* For functions we can do a quick check of whether the | |
4895 | symbol might be found via find_pc_symtab. */ | |
4896 | if (kind != FUNCTIONS_DOMAIN | |
4897 | || (find_pc_compunit_symtab | |
4898 | (MSYMBOL_VALUE_ADDRESS (objfile, msymbol)) | |
4899 | == NULL)) | |
4900 | { | |
4901 | if (lookup_symbol_in_objfile_from_linkage_name | |
4902 | (objfile, msymbol->linkage_name (), | |
4903 | VAR_DOMAIN).symbol == NULL) | |
4904 | { | |
4905 | /* Matching msymbol, add it to the results list. */ | |
c2512106 AB |
4906 | if (results->size () < m_max_search_results) |
4907 | results->emplace_back (GLOBAL_BLOCK, msymbol, objfile); | |
4908 | else | |
4909 | return false; | |
f97a63c5 AB |
4910 | } |
4911 | } | |
4912 | } | |
4913 | } | |
4914 | } | |
12615cba | 4915 | |
c2512106 | 4916 | return true; |
434d2d4f | 4917 | } |
5bd98722 | 4918 | |
470c0b1c | 4919 | /* See symtab.h. */ |
c378eb4e | 4920 | |
b9c04fb2 | 4921 | std::vector<symbol_search> |
470c0b1c | 4922 | global_symbol_searcher::search () const |
c906108c | 4923 | { |
2d7cc5c7 | 4924 | gdb::optional<compiled_regex> preg; |
12615cba | 4925 | gdb::optional<compiled_regex> treg; |
c906108c | 4926 | |
470c0b1c | 4927 | gdb_assert (m_kind != ALL_DOMAIN); |
e8930875 | 4928 | |
470c0b1c | 4929 | if (m_symbol_name_regexp != NULL) |
c906108c | 4930 | { |
470c0b1c AB |
4931 | const char *symbol_name_regexp = m_symbol_name_regexp; |
4932 | ||
c906108c | 4933 | /* Make sure spacing is right for C++ operators. |
dda83cd7 SM |
4934 | This is just a courtesy to make the matching less sensitive |
4935 | to how many spaces the user leaves between 'operator' | |
4936 | and <TYPENAME> or <OPERATOR>. */ | |
96142726 | 4937 | const char *opend; |
470c0b1c | 4938 | const char *opname = operator_chars (symbol_name_regexp, &opend); |
433759f7 | 4939 | |
c906108c | 4940 | if (*opname) |
c5aa993b | 4941 | { |
3e43a32a | 4942 | int fix = -1; /* -1 means ok; otherwise number of |
dda83cd7 | 4943 | spaces needed. */ |
433759f7 | 4944 | |
c5aa993b JM |
4945 | if (isalpha (*opname) || *opname == '_' || *opname == '$') |
4946 | { | |
c378eb4e | 4947 | /* There should 1 space between 'operator' and 'TYPENAME'. */ |
c5aa993b JM |
4948 | if (opname[-1] != ' ' || opname[-2] == ' ') |
4949 | fix = 1; | |
4950 | } | |
4951 | else | |
4952 | { | |
c378eb4e | 4953 | /* There should 0 spaces between 'operator' and 'OPERATOR'. */ |
c5aa993b JM |
4954 | if (opname[-1] == ' ') |
4955 | fix = 0; | |
4956 | } | |
c378eb4e | 4957 | /* If wrong number of spaces, fix it. */ |
c5aa993b JM |
4958 | if (fix >= 0) |
4959 | { | |
045f55a6 | 4960 | char *tmp = (char *) alloca (8 + fix + strlen (opname) + 1); |
433759f7 | 4961 | |
c5aa993b | 4962 | sprintf (tmp, "operator%.*s%s", fix, " ", opname); |
470c0b1c | 4963 | symbol_name_regexp = tmp; |
c5aa993b JM |
4964 | } |
4965 | } | |
4966 | ||
2d7cc5c7 PA |
4967 | int cflags = REG_NOSUB | (case_sensitivity == case_sensitive_off |
4968 | ? REG_ICASE : 0); | |
470c0b1c AB |
4969 | preg.emplace (symbol_name_regexp, cflags, |
4970 | _("Invalid regexp")); | |
c906108c SS |
4971 | } |
4972 | ||
470c0b1c | 4973 | if (m_symbol_type_regexp != NULL) |
12615cba PW |
4974 | { |
4975 | int cflags = REG_NOSUB | (case_sensitivity == case_sensitive_off | |
4976 | ? REG_ICASE : 0); | |
470c0b1c AB |
4977 | treg.emplace (m_symbol_type_regexp, cflags, |
4978 | _("Invalid regexp")); | |
12615cba PW |
4979 | } |
4980 | ||
f97a63c5 | 4981 | bool found_msymbol = false; |
c2512106 | 4982 | std::set<symbol_search> result_set; |
2030c079 | 4983 | for (objfile *objfile : current_program_space->objfiles ()) |
d8aeb77f | 4984 | { |
f97a63c5 AB |
4985 | /* Expand symtabs within objfile that possibly contain matching |
4986 | symbols. */ | |
4987 | found_msymbol |= expand_symtabs (objfile, preg); | |
4988 | ||
c2512106 AB |
4989 | /* Find matching symbols within OBJFILE and add them in to the |
4990 | RESULT_SET set. Use a set here so that we can easily detect | |
4991 | duplicates as we go, and can therefore track how many unique | |
4992 | matches we have found so far. */ | |
4993 | if (!add_matching_symbols (objfile, preg, treg, &result_set)) | |
4994 | break; | |
d8aeb77f | 4995 | } |
c906108c | 4996 | |
c2512106 AB |
4997 | /* Convert the result set into a sorted result list, as std::set is |
4998 | defined to be sorted then no explicit call to std::sort is needed. */ | |
4999 | std::vector<symbol_search> result (result_set.begin (), result_set.end ()); | |
b52109bc | 5000 | |
470c0b1c | 5001 | /* If there are no debug symbols, then add matching minsyms. But if the |
f97a63c5 AB |
5002 | user wants to see symbols matching a type regexp, then never give a |
5003 | minimal symbol, as we assume that a minimal symbol does not have a | |
5004 | type. */ | |
5005 | if ((found_msymbol || (filenames.empty () && m_kind == VARIABLES_DOMAIN)) | |
470c0b1c | 5006 | && !m_exclude_minsyms |
a8462bbf | 5007 | && !treg.has_value ()) |
c906108c | 5008 | { |
f97a63c5 | 5009 | gdb_assert (m_kind == VARIABLES_DOMAIN || m_kind == FUNCTIONS_DOMAIN); |
2030c079 | 5010 | for (objfile *objfile : current_program_space->objfiles ()) |
c2512106 AB |
5011 | if (!add_matching_msymbols (objfile, preg, &result)) |
5012 | break; | |
c906108c SS |
5013 | } |
5014 | ||
b9c04fb2 | 5015 | return result; |
c906108c SS |
5016 | } |
5017 | ||
5f512a7d | 5018 | /* See symtab.h. */ |
c378eb4e | 5019 | |
5f512a7d AB |
5020 | std::string |
5021 | symbol_to_info_string (struct symbol *sym, int block, | |
5022 | enum search_domain kind) | |
c906108c | 5023 | { |
5f512a7d | 5024 | std::string str; |
05cba821 | 5025 | |
5f512a7d | 5026 | gdb_assert (block == GLOBAL_BLOCK || block == STATIC_BLOCK); |
b744723f | 5027 | |
176620f1 | 5028 | if (kind != TYPES_DOMAIN && block == STATIC_BLOCK) |
5f512a7d | 5029 | str += "static "; |
c5aa993b | 5030 | |
c378eb4e | 5031 | /* Typedef that is not a C++ class. */ |
176620f1 EZ |
5032 | if (kind == TYPES_DOMAIN |
5033 | && SYMBOL_DOMAIN (sym) != STRUCT_DOMAIN) | |
eb86c5e2 | 5034 | { |
5f512a7d AB |
5035 | string_file tmp_stream; |
5036 | ||
eb86c5e2 AB |
5037 | /* FIXME: For C (and C++) we end up with a difference in output here |
5038 | between how a typedef is printed, and non-typedefs are printed. | |
5039 | The TYPEDEF_PRINT code places a ";" at the end in an attempt to | |
5040 | appear C-like, while TYPE_PRINT doesn't. | |
5041 | ||
5042 | For the struct printing case below, things are worse, we force | |
5043 | printing of the ";" in this function, which is going to be wrong | |
5044 | for languages that don't require a ";" between statements. */ | |
78134374 | 5045 | if (SYMBOL_TYPE (sym)->code () == TYPE_CODE_TYPEDEF) |
5f512a7d | 5046 | typedef_print (SYMBOL_TYPE (sym), sym, &tmp_stream); |
eb86c5e2 | 5047 | else |
5f512a7d AB |
5048 | type_print (SYMBOL_TYPE (sym), "", &tmp_stream, -1); |
5049 | str += tmp_stream.string (); | |
eb86c5e2 | 5050 | } |
c378eb4e | 5051 | /* variable, func, or typedef-that-is-c++-class. */ |
d50bd42b DE |
5052 | else if (kind < TYPES_DOMAIN |
5053 | || (kind == TYPES_DOMAIN | |
5054 | && SYMBOL_DOMAIN (sym) == STRUCT_DOMAIN)) | |
c906108c | 5055 | { |
5f512a7d AB |
5056 | string_file tmp_stream; |
5057 | ||
c906108c | 5058 | type_print (SYMBOL_TYPE (sym), |
c5aa993b | 5059 | (SYMBOL_CLASS (sym) == LOC_TYPEDEF |
987012b8 | 5060 | ? "" : sym->print_name ()), |
5f512a7d | 5061 | &tmp_stream, 0); |
c906108c | 5062 | |
5f512a7d AB |
5063 | str += tmp_stream.string (); |
5064 | str += ";"; | |
c906108c | 5065 | } |
59c35742 AB |
5066 | /* Printing of modules is currently done here, maybe at some future |
5067 | point we might want a language specific method to print the module | |
5068 | symbol so that we can customise the output more. */ | |
5069 | else if (kind == MODULES_DOMAIN) | |
5f512a7d AB |
5070 | str += sym->print_name (); |
5071 | ||
5072 | return str; | |
5073 | } | |
5074 | ||
5075 | /* Helper function for symbol info commands, for example 'info functions', | |
5076 | 'info variables', etc. KIND is the kind of symbol we searched for, and | |
5077 | BLOCK is the type of block the symbols was found in, either GLOBAL_BLOCK | |
5078 | or STATIC_BLOCK. SYM is the symbol we found. If LAST is not NULL, | |
5079 | print file and line number information for the symbol as well. Skip | |
5080 | printing the filename if it matches LAST. */ | |
5081 | ||
5082 | static void | |
5083 | print_symbol_info (enum search_domain kind, | |
5084 | struct symbol *sym, | |
5085 | int block, const char *last) | |
5086 | { | |
5087 | scoped_switch_to_sym_language_if_auto l (sym); | |
5088 | struct symtab *s = symbol_symtab (sym); | |
5089 | ||
5090 | if (last != NULL) | |
5091 | { | |
5092 | const char *s_filename = symtab_to_filename_for_display (s); | |
5093 | ||
5094 | if (filename_cmp (last, s_filename) != 0) | |
5095 | { | |
5096 | printf_filtered (_("\nFile %ps:\n"), | |
5097 | styled_string (file_name_style.style (), | |
5098 | s_filename)); | |
5099 | } | |
5100 | ||
5101 | if (SYMBOL_LINE (sym) != 0) | |
5102 | printf_filtered ("%d:\t", SYMBOL_LINE (sym)); | |
5103 | else | |
5104 | puts_filtered ("\t"); | |
5105 | } | |
5106 | ||
5107 | std::string str = symbol_to_info_string (sym, block, kind); | |
5108 | printf_filtered ("%s\n", str.c_str ()); | |
c906108c SS |
5109 | } |
5110 | ||
5111 | /* This help function for symtab_symbol_info() prints information | |
c378eb4e MS |
5112 | for non-debugging symbols to gdb_stdout. */ |
5113 | ||
c906108c | 5114 | static void |
7c7b6655 | 5115 | print_msymbol_info (struct bound_minimal_symbol msymbol) |
c906108c | 5116 | { |
08feed99 | 5117 | struct gdbarch *gdbarch = msymbol.objfile->arch (); |
3ac4495a MS |
5118 | char *tmp; |
5119 | ||
d80b854b | 5120 | if (gdbarch_addr_bit (gdbarch) <= 32) |
77e371c0 | 5121 | tmp = hex_string_custom (BMSYMBOL_VALUE_ADDRESS (msymbol) |
bb599908 PH |
5122 | & (CORE_ADDR) 0xffffffff, |
5123 | 8); | |
3ac4495a | 5124 | else |
77e371c0 | 5125 | tmp = hex_string_custom (BMSYMBOL_VALUE_ADDRESS (msymbol), |
bb599908 | 5126 | 16); |
6a831f06 PA |
5127 | |
5128 | ui_file_style sym_style = (msymbol.minsym->text_p () | |
5129 | ? function_name_style.style () | |
5130 | : ui_file_style ()); | |
5131 | ||
5132 | printf_filtered (_("%ps %ps\n"), | |
5133 | styled_string (address_style.style (), tmp), | |
c9d95fa3 | 5134 | styled_string (sym_style, msymbol.minsym->print_name ())); |
c906108c SS |
5135 | } |
5136 | ||
5137 | /* This is the guts of the commands "info functions", "info types", and | |
c378eb4e | 5138 | "info variables". It calls search_symbols to find all matches and then |
c906108c | 5139 | print_[m]symbol_info to print out some useful information about the |
c378eb4e MS |
5140 | matches. */ |
5141 | ||
c906108c | 5142 | static void |
4acfdd20 | 5143 | symtab_symbol_info (bool quiet, bool exclude_minsyms, |
12615cba PW |
5144 | const char *regexp, enum search_domain kind, |
5145 | const char *t_regexp, int from_tty) | |
c906108c | 5146 | { |
bc043ef3 | 5147 | static const char * const classnames[] = |
59c35742 | 5148 | {"variable", "function", "type", "module"}; |
c7dcbf88 | 5149 | const char *last_filename = ""; |
c906108c SS |
5150 | int first = 1; |
5151 | ||
59c35742 | 5152 | gdb_assert (kind != ALL_DOMAIN); |
e8930875 | 5153 | |
b16507e0 AB |
5154 | if (regexp != nullptr && *regexp == '\0') |
5155 | regexp = nullptr; | |
5156 | ||
470c0b1c AB |
5157 | global_symbol_searcher spec (kind, regexp); |
5158 | spec.set_symbol_type_regexp (t_regexp); | |
5159 | spec.set_exclude_minsyms (exclude_minsyms); | |
5160 | std::vector<symbol_search> symbols = spec.search (); | |
c906108c | 5161 | |
12615cba PW |
5162 | if (!quiet) |
5163 | { | |
5164 | if (regexp != NULL) | |
5165 | { | |
5166 | if (t_regexp != NULL) | |
5167 | printf_filtered | |
5168 | (_("All %ss matching regular expression \"%s\"" | |
0c95f9ed | 5169 | " with type matching regular expression \"%s\":\n"), |
12615cba PW |
5170 | classnames[kind], regexp, t_regexp); |
5171 | else | |
5172 | printf_filtered (_("All %ss matching regular expression \"%s\":\n"), | |
5173 | classnames[kind], regexp); | |
5174 | } | |
5175 | else | |
5176 | { | |
5177 | if (t_regexp != NULL) | |
5178 | printf_filtered | |
5179 | (_("All defined %ss" | |
0c95f9ed | 5180 | " with type matching regular expression \"%s\" :\n"), |
12615cba PW |
5181 | classnames[kind], t_regexp); |
5182 | else | |
5183 | printf_filtered (_("All defined %ss:\n"), classnames[kind]); | |
5184 | } | |
5185 | } | |
c906108c | 5186 | |
b9c04fb2 | 5187 | for (const symbol_search &p : symbols) |
c906108c SS |
5188 | { |
5189 | QUIT; | |
5190 | ||
b9c04fb2 | 5191 | if (p.msymbol.minsym != NULL) |
c5aa993b JM |
5192 | { |
5193 | if (first) | |
5194 | { | |
12615cba PW |
5195 | if (!quiet) |
5196 | printf_filtered (_("\nNon-debugging symbols:\n")); | |
c5aa993b JM |
5197 | first = 0; |
5198 | } | |
b9c04fb2 | 5199 | print_msymbol_info (p.msymbol); |
c5aa993b | 5200 | } |
c906108c | 5201 | else |
c5aa993b JM |
5202 | { |
5203 | print_symbol_info (kind, | |
b9c04fb2 TT |
5204 | p.symbol, |
5205 | p.block, | |
c5aa993b | 5206 | last_filename); |
d01060f0 | 5207 | last_filename |
b9c04fb2 | 5208 | = symtab_to_filename_for_display (symbol_symtab (p.symbol)); |
c5aa993b | 5209 | } |
c906108c | 5210 | } |
c906108c SS |
5211 | } |
5212 | ||
4acfdd20 AB |
5213 | /* Structure to hold the values of the options used by the 'info variables' |
5214 | and 'info functions' commands. These correspond to the -q, -t, and -n | |
5215 | options. */ | |
5216 | ||
095252be | 5217 | struct info_vars_funcs_options |
4acfdd20 | 5218 | { |
491144b5 CB |
5219 | bool quiet = false; |
5220 | bool exclude_minsyms = false; | |
e0700ba4 | 5221 | std::string type_regexp; |
4acfdd20 AB |
5222 | }; |
5223 | ||
5224 | /* The options used by the 'info variables' and 'info functions' | |
5225 | commands. */ | |
5226 | ||
095252be AT |
5227 | static const gdb::option::option_def info_vars_funcs_options_defs[] = { |
5228 | gdb::option::boolean_option_def<info_vars_funcs_options> { | |
4acfdd20 | 5229 | "q", |
095252be | 5230 | [] (info_vars_funcs_options *opt) { return &opt->quiet; }, |
4acfdd20 AB |
5231 | nullptr, /* show_cmd_cb */ |
5232 | nullptr /* set_doc */ | |
5233 | }, | |
5234 | ||
095252be | 5235 | gdb::option::boolean_option_def<info_vars_funcs_options> { |
4acfdd20 | 5236 | "n", |
095252be | 5237 | [] (info_vars_funcs_options *opt) { return &opt->exclude_minsyms; }, |
4acfdd20 AB |
5238 | nullptr, /* show_cmd_cb */ |
5239 | nullptr /* set_doc */ | |
5240 | }, | |
5241 | ||
095252be | 5242 | gdb::option::string_option_def<info_vars_funcs_options> { |
4acfdd20 | 5243 | "t", |
e0700ba4 | 5244 | [] (info_vars_funcs_options *opt) { return &opt->type_regexp; }, |
4acfdd20 AB |
5245 | nullptr, /* show_cmd_cb */ |
5246 | nullptr /* set_doc */ | |
5247 | } | |
5248 | }; | |
5249 | ||
5250 | /* Returns the option group used by 'info variables' and 'info | |
5251 | functions'. */ | |
5252 | ||
5253 | static gdb::option::option_def_group | |
095252be | 5254 | make_info_vars_funcs_options_def_group (info_vars_funcs_options *opts) |
4acfdd20 | 5255 | { |
095252be | 5256 | return {{info_vars_funcs_options_defs}, opts}; |
4acfdd20 AB |
5257 | } |
5258 | ||
5259 | /* Command completer for 'info variables' and 'info functions'. */ | |
5260 | ||
5261 | static void | |
095252be AT |
5262 | info_vars_funcs_command_completer (struct cmd_list_element *ignore, |
5263 | completion_tracker &tracker, | |
5264 | const char *text, const char * /* word */) | |
4acfdd20 AB |
5265 | { |
5266 | const auto group | |
095252be | 5267 | = make_info_vars_funcs_options_def_group (nullptr); |
4acfdd20 AB |
5268 | if (gdb::option::complete_options |
5269 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
5270 | return; | |
5271 | ||
5272 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
5273 | symbol_completer (ignore, tracker, text, word); | |
5274 | } | |
5275 | ||
b16507e0 AB |
5276 | /* Implement the 'info variables' command. */ |
5277 | ||
0b39b52e | 5278 | static void |
12615cba | 5279 | info_variables_command (const char *args, int from_tty) |
0b39b52e | 5280 | { |
095252be AT |
5281 | info_vars_funcs_options opts; |
5282 | auto grp = make_info_vars_funcs_options_def_group (&opts); | |
4acfdd20 AB |
5283 | gdb::option::process_options |
5284 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5285 | if (args != nullptr && *args == '\0') | |
5286 | args = nullptr; | |
b16507e0 | 5287 | |
e0700ba4 SM |
5288 | symtab_symbol_info |
5289 | (opts.quiet, opts.exclude_minsyms, args, VARIABLES_DOMAIN, | |
5290 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
5291 | from_tty); | |
0b39b52e TT |
5292 | } |
5293 | ||
b16507e0 | 5294 | /* Implement the 'info functions' command. */ |
12615cba | 5295 | |
c906108c | 5296 | static void |
12615cba | 5297 | info_functions_command (const char *args, int from_tty) |
c906108c | 5298 | { |
095252be AT |
5299 | info_vars_funcs_options opts; |
5300 | ||
5301 | auto grp = make_info_vars_funcs_options_def_group (&opts); | |
4acfdd20 AB |
5302 | gdb::option::process_options |
5303 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5304 | if (args != nullptr && *args == '\0') | |
5305 | args = nullptr; | |
b16507e0 | 5306 | |
e0700ba4 SM |
5307 | symtab_symbol_info |
5308 | (opts.quiet, opts.exclude_minsyms, args, FUNCTIONS_DOMAIN, | |
5309 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
5310 | from_tty); | |
c906108c SS |
5311 | } |
5312 | ||
a8eab7c6 AB |
5313 | /* Holds the -q option for the 'info types' command. */ |
5314 | ||
5315 | struct info_types_options | |
5316 | { | |
491144b5 | 5317 | bool quiet = false; |
a8eab7c6 AB |
5318 | }; |
5319 | ||
5320 | /* The options used by the 'info types' command. */ | |
5321 | ||
5322 | static const gdb::option::option_def info_types_options_defs[] = { | |
5323 | gdb::option::boolean_option_def<info_types_options> { | |
5324 | "q", | |
5325 | [] (info_types_options *opt) { return &opt->quiet; }, | |
5326 | nullptr, /* show_cmd_cb */ | |
5327 | nullptr /* set_doc */ | |
5328 | } | |
5329 | }; | |
5330 | ||
5331 | /* Returns the option group used by 'info types'. */ | |
5332 | ||
5333 | static gdb::option::option_def_group | |
5334 | make_info_types_options_def_group (info_types_options *opts) | |
5335 | { | |
5336 | return {{info_types_options_defs}, opts}; | |
5337 | } | |
5338 | ||
5339 | /* Implement the 'info types' command. */ | |
357e46e7 | 5340 | |
c906108c | 5341 | static void |
a8eab7c6 | 5342 | info_types_command (const char *args, int from_tty) |
c906108c | 5343 | { |
a8eab7c6 AB |
5344 | info_types_options opts; |
5345 | ||
5346 | auto grp = make_info_types_options_def_group (&opts); | |
5347 | gdb::option::process_options | |
5348 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5349 | if (args != nullptr && *args == '\0') | |
5350 | args = nullptr; | |
4acfdd20 | 5351 | symtab_symbol_info (opts.quiet, false, args, TYPES_DOMAIN, NULL, from_tty); |
a8eab7c6 AB |
5352 | } |
5353 | ||
5354 | /* Command completer for 'info types' command. */ | |
5355 | ||
5356 | static void | |
5357 | info_types_command_completer (struct cmd_list_element *ignore, | |
5358 | completion_tracker &tracker, | |
5359 | const char *text, const char * /* word */) | |
5360 | { | |
5361 | const auto group | |
5362 | = make_info_types_options_def_group (nullptr); | |
5363 | if (gdb::option::complete_options | |
5364 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
5365 | return; | |
5366 | ||
5367 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
5368 | symbol_completer (ignore, tracker, text, word); | |
c906108c SS |
5369 | } |
5370 | ||
59c35742 AB |
5371 | /* Implement the 'info modules' command. */ |
5372 | ||
5373 | static void | |
5374 | info_modules_command (const char *args, int from_tty) | |
5375 | { | |
5376 | info_types_options opts; | |
5377 | ||
5378 | auto grp = make_info_types_options_def_group (&opts); | |
5379 | gdb::option::process_options | |
5380 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5381 | if (args != nullptr && *args == '\0') | |
5382 | args = nullptr; | |
5383 | symtab_symbol_info (opts.quiet, true, args, MODULES_DOMAIN, NULL, | |
5384 | from_tty); | |
5385 | } | |
5386 | ||
c906108c | 5387 | static void |
0b39b52e | 5388 | rbreak_command (const char *regexp, int from_tty) |
c906108c | 5389 | { |
c80049d3 | 5390 | std::string string; |
470c0b1c | 5391 | const char *file_name = nullptr; |
c906108c | 5392 | |
470c0b1c | 5393 | if (regexp != nullptr) |
8bd10a10 | 5394 | { |
0b39b52e | 5395 | const char *colon = strchr (regexp, ':'); |
433759f7 | 5396 | |
2c074f49 HD |
5397 | /* Ignore the colon if it is part of a Windows drive. */ |
5398 | if (HAS_DRIVE_SPEC (regexp) | |
5399 | && (regexp[2] == '/' || regexp[2] == '\\')) | |
5400 | colon = strchr (STRIP_DRIVE_SPEC (regexp), ':'); | |
5401 | ||
8bd10a10 CM |
5402 | if (colon && *(colon + 1) != ':') |
5403 | { | |
5404 | int colon_index; | |
96142726 | 5405 | char *local_name; |
8bd10a10 CM |
5406 | |
5407 | colon_index = colon - regexp; | |
224c3ddb | 5408 | local_name = (char *) alloca (colon_index + 1); |
96142726 TT |
5409 | memcpy (local_name, regexp, colon_index); |
5410 | local_name[colon_index--] = 0; | |
5411 | while (isspace (local_name[colon_index])) | |
5412 | local_name[colon_index--] = 0; | |
5413 | file_name = local_name; | |
529480d0 | 5414 | regexp = skip_spaces (colon + 1); |
8bd10a10 CM |
5415 | } |
5416 | } | |
5417 | ||
470c0b1c AB |
5418 | global_symbol_searcher spec (FUNCTIONS_DOMAIN, regexp); |
5419 | if (file_name != nullptr) | |
5420 | spec.filenames.push_back (file_name); | |
5421 | std::vector<symbol_search> symbols = spec.search (); | |
c906108c | 5422 | |
c80049d3 | 5423 | scoped_rbreak_breakpoints finalize; |
b9c04fb2 | 5424 | for (const symbol_search &p : symbols) |
c906108c | 5425 | { |
b9c04fb2 | 5426 | if (p.msymbol.minsym == NULL) |
c5aa993b | 5427 | { |
b9c04fb2 | 5428 | struct symtab *symtab = symbol_symtab (p.symbol); |
d01060f0 | 5429 | const char *fullname = symtab_to_fullname (symtab); |
05cba821 | 5430 | |
c80049d3 | 5431 | string = string_printf ("%s:'%s'", fullname, |
987012b8 | 5432 | p.symbol->linkage_name ()); |
c80049d3 | 5433 | break_command (&string[0], from_tty); |
c7dcbf88 | 5434 | print_symbol_info (FUNCTIONS_DOMAIN, p.symbol, p.block, NULL); |
c5aa993b | 5435 | } |
c906108c | 5436 | else |
c5aa993b | 5437 | { |
c80049d3 | 5438 | string = string_printf ("'%s'", |
c9d95fa3 | 5439 | p.msymbol.minsym->linkage_name ()); |
6214f497 | 5440 | |
c80049d3 | 5441 | break_command (&string[0], from_tty); |
c5aa993b | 5442 | printf_filtered ("<function, no debug info> %s;\n", |
c9d95fa3 | 5443 | p.msymbol.minsym->print_name ()); |
c5aa993b | 5444 | } |
c906108c | 5445 | } |
c906108c | 5446 | } |
c906108c | 5447 | \f |
c5aa993b | 5448 | |
c62446b1 | 5449 | /* Evaluate if SYMNAME matches LOOKUP_NAME. */ |
1976171a JK |
5450 | |
5451 | static int | |
c62446b1 | 5452 | compare_symbol_name (const char *symbol_name, language symbol_language, |
b5ec771e | 5453 | const lookup_name_info &lookup_name, |
b5ec771e PA |
5454 | completion_match_result &match_res) |
5455 | { | |
d4c2a405 | 5456 | const language_defn *lang = language_def (symbol_language); |
1976171a | 5457 | |
b5ec771e | 5458 | symbol_name_matcher_ftype *name_match |
c9debfb9 | 5459 | = lang->get_symbol_name_matcher (lookup_name); |
1976171a | 5460 | |
a207cff2 | 5461 | return name_match (symbol_name, lookup_name, &match_res); |
1976171a JK |
5462 | } |
5463 | ||
b5ec771e | 5464 | /* See symtab.h. */ |
c906108c | 5465 | |
e08bd6c5 | 5466 | bool |
eb3ff9a5 | 5467 | completion_list_add_name (completion_tracker &tracker, |
b5ec771e | 5468 | language symbol_language, |
eb3ff9a5 | 5469 | const char *symname, |
b5ec771e | 5470 | const lookup_name_info &lookup_name, |
0d5cff50 | 5471 | const char *text, const char *word) |
c906108c | 5472 | { |
b5ec771e PA |
5473 | completion_match_result &match_res |
5474 | = tracker.reset_completion_match_result (); | |
5475 | ||
c378eb4e | 5476 | /* Clip symbols that cannot match. */ |
c62446b1 | 5477 | if (!compare_symbol_name (symname, symbol_language, lookup_name, match_res)) |
e08bd6c5 | 5478 | return false; |
c906108c | 5479 | |
b5ec771e PA |
5480 | /* Refresh SYMNAME from the match string. It's potentially |
5481 | different depending on language. (E.g., on Ada, the match may be | |
5482 | the encoded symbol name wrapped in "<>"). */ | |
5483 | symname = match_res.match.match (); | |
5484 | gdb_assert (symname != NULL); | |
5485 | ||
c906108c | 5486 | /* We have a match for a completion, so add SYMNAME to the current list |
c378eb4e | 5487 | of matches. Note that the name is moved to freshly malloc'd space. */ |
c906108c SS |
5488 | |
5489 | { | |
60a20c19 PA |
5490 | gdb::unique_xmalloc_ptr<char> completion |
5491 | = make_completion_match_str (symname, text, word); | |
ef0b411a | 5492 | |
a207cff2 PA |
5493 | /* Here we pass the match-for-lcd object to add_completion. Some |
5494 | languages match the user text against substrings of symbol | |
5495 | names in some cases. E.g., in C++, "b push_ba" completes to | |
5496 | "std::vector::push_back", "std::string::push_back", etc., and | |
5497 | in this case we want the completion lowest common denominator | |
5498 | to be "push_back" instead of "std::". */ | |
5499 | tracker.add_completion (std::move (completion), | |
a22ecf70 | 5500 | &match_res.match_for_lcd, text, word); |
c906108c | 5501 | } |
e08bd6c5 PA |
5502 | |
5503 | return true; | |
c906108c SS |
5504 | } |
5505 | ||
6da67eb1 PA |
5506 | /* completion_list_add_name wrapper for struct symbol. */ |
5507 | ||
5508 | static void | |
eb3ff9a5 PA |
5509 | completion_list_add_symbol (completion_tracker &tracker, |
5510 | symbol *sym, | |
b5ec771e | 5511 | const lookup_name_info &lookup_name, |
6da67eb1 PA |
5512 | const char *text, const char *word) |
5513 | { | |
e08bd6c5 PA |
5514 | if (!completion_list_add_name (tracker, sym->language (), |
5515 | sym->natural_name (), | |
5516 | lookup_name, text, word)) | |
5517 | return; | |
19a2740f AB |
5518 | |
5519 | /* C++ function symbols include the parameters within both the msymbol | |
5520 | name and the symbol name. The problem is that the msymbol name will | |
5521 | describe the parameters in the most basic way, with typedefs stripped | |
5522 | out, while the symbol name will represent the types as they appear in | |
5523 | the program. This means we will see duplicate entries in the | |
5524 | completion tracker. The following converts the symbol name back to | |
5525 | the msymbol name and removes the msymbol name from the completion | |
5526 | tracker. */ | |
5527 | if (sym->language () == language_cplus | |
5528 | && SYMBOL_DOMAIN (sym) == VAR_DOMAIN | |
5529 | && SYMBOL_CLASS (sym) == LOC_BLOCK) | |
5530 | { | |
5531 | /* The call to canonicalize returns the empty string if the input | |
5532 | string is already in canonical form, thanks to this we don't | |
5533 | remove the symbol we just added above. */ | |
596dc4ad | 5534 | gdb::unique_xmalloc_ptr<char> str |
19a2740f | 5535 | = cp_canonicalize_string_no_typedefs (sym->natural_name ()); |
596dc4ad TT |
5536 | if (str != nullptr) |
5537 | tracker.remove_completion (str.get ()); | |
19a2740f | 5538 | } |
6da67eb1 PA |
5539 | } |
5540 | ||
5541 | /* completion_list_add_name wrapper for struct minimal_symbol. */ | |
5542 | ||
5543 | static void | |
eb3ff9a5 PA |
5544 | completion_list_add_msymbol (completion_tracker &tracker, |
5545 | minimal_symbol *sym, | |
b5ec771e | 5546 | const lookup_name_info &lookup_name, |
6da67eb1 PA |
5547 | const char *text, const char *word) |
5548 | { | |
c1b5c1eb | 5549 | completion_list_add_name (tracker, sym->language (), |
c9d95fa3 | 5550 | sym->natural_name (), |
1b026119 | 5551 | lookup_name, text, word); |
6da67eb1 PA |
5552 | } |
5553 | ||
b5ec771e | 5554 | |
69636828 AF |
5555 | /* ObjC: In case we are completing on a selector, look as the msymbol |
5556 | again and feed all the selectors into the mill. */ | |
5557 | ||
5558 | static void | |
eb3ff9a5 PA |
5559 | completion_list_objc_symbol (completion_tracker &tracker, |
5560 | struct minimal_symbol *msymbol, | |
b5ec771e | 5561 | const lookup_name_info &lookup_name, |
0d5cff50 | 5562 | const char *text, const char *word) |
69636828 AF |
5563 | { |
5564 | static char *tmp = NULL; | |
5565 | static unsigned int tmplen = 0; | |
9af17804 | 5566 | |
0d5cff50 | 5567 | const char *method, *category, *selector; |
69636828 | 5568 | char *tmp2 = NULL; |
9af17804 | 5569 | |
c9d95fa3 | 5570 | method = msymbol->natural_name (); |
69636828 AF |
5571 | |
5572 | /* Is it a method? */ | |
5573 | if ((method[0] != '-') && (method[0] != '+')) | |
5574 | return; | |
5575 | ||
1b026119 | 5576 | if (text[0] == '[') |
69636828 | 5577 | /* Complete on shortened method method. */ |
b5ec771e PA |
5578 | completion_list_add_name (tracker, language_objc, |
5579 | method + 1, | |
5580 | lookup_name, | |
1b026119 | 5581 | text, word); |
9af17804 | 5582 | |
69636828 AF |
5583 | while ((strlen (method) + 1) >= tmplen) |
5584 | { | |
5585 | if (tmplen == 0) | |
5586 | tmplen = 1024; | |
5587 | else | |
5588 | tmplen *= 2; | |
224c3ddb | 5589 | tmp = (char *) xrealloc (tmp, tmplen); |
69636828 AF |
5590 | } |
5591 | selector = strchr (method, ' '); | |
5592 | if (selector != NULL) | |
5593 | selector++; | |
9af17804 | 5594 | |
69636828 | 5595 | category = strchr (method, '('); |
9af17804 | 5596 | |
69636828 AF |
5597 | if ((category != NULL) && (selector != NULL)) |
5598 | { | |
5599 | memcpy (tmp, method, (category - method)); | |
5600 | tmp[category - method] = ' '; | |
5601 | memcpy (tmp + (category - method) + 1, selector, strlen (selector) + 1); | |
b5ec771e | 5602 | completion_list_add_name (tracker, language_objc, tmp, |
1b026119 PA |
5603 | lookup_name, text, word); |
5604 | if (text[0] == '[') | |
b5ec771e | 5605 | completion_list_add_name (tracker, language_objc, tmp + 1, |
1b026119 | 5606 | lookup_name, text, word); |
69636828 | 5607 | } |
9af17804 | 5608 | |
69636828 AF |
5609 | if (selector != NULL) |
5610 | { | |
5611 | /* Complete on selector only. */ | |
5612 | strcpy (tmp, selector); | |
5613 | tmp2 = strchr (tmp, ']'); | |
5614 | if (tmp2 != NULL) | |
5615 | *tmp2 = '\0'; | |
9af17804 | 5616 | |
b5ec771e | 5617 | completion_list_add_name (tracker, language_objc, tmp, |
1b026119 | 5618 | lookup_name, text, word); |
69636828 AF |
5619 | } |
5620 | } | |
5621 | ||
5622 | /* Break the non-quoted text based on the characters which are in | |
c378eb4e | 5623 | symbols. FIXME: This should probably be language-specific. */ |
69636828 | 5624 | |
6f937416 PA |
5625 | static const char * |
5626 | language_search_unquoted_string (const char *text, const char *p) | |
69636828 AF |
5627 | { |
5628 | for (; p > text; --p) | |
5629 | { | |
5630 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0') | |
5631 | continue; | |
5632 | else | |
5633 | { | |
5634 | if ((current_language->la_language == language_objc)) | |
5635 | { | |
c378eb4e | 5636 | if (p[-1] == ':') /* Might be part of a method name. */ |
69636828 AF |
5637 | continue; |
5638 | else if (p[-1] == '[' && (p[-2] == '-' || p[-2] == '+')) | |
c378eb4e | 5639 | p -= 2; /* Beginning of a method name. */ |
69636828 | 5640 | else if (p[-1] == ' ' || p[-1] == '(' || p[-1] == ')') |
c378eb4e | 5641 | { /* Might be part of a method name. */ |
6f937416 | 5642 | const char *t = p; |
69636828 AF |
5643 | |
5644 | /* Seeing a ' ' or a '(' is not conclusive evidence | |
5645 | that we are in the middle of a method name. However, | |
5646 | finding "-[" or "+[" should be pretty un-ambiguous. | |
5647 | Unfortunately we have to find it now to decide. */ | |
5648 | ||
5649 | while (t > text) | |
5650 | if (isalnum (t[-1]) || t[-1] == '_' || | |
5651 | t[-1] == ' ' || t[-1] == ':' || | |
5652 | t[-1] == '(' || t[-1] == ')') | |
5653 | --t; | |
5654 | else | |
5655 | break; | |
5656 | ||
5657 | if (t[-1] == '[' && (t[-2] == '-' || t[-2] == '+')) | |
c378eb4e MS |
5658 | p = t - 2; /* Method name detected. */ |
5659 | /* Else we leave with p unchanged. */ | |
69636828 AF |
5660 | } |
5661 | } | |
5662 | break; | |
5663 | } | |
5664 | } | |
5665 | return p; | |
5666 | } | |
5667 | ||
edb3359d | 5668 | static void |
eb3ff9a5 PA |
5669 | completion_list_add_fields (completion_tracker &tracker, |
5670 | struct symbol *sym, | |
b5ec771e | 5671 | const lookup_name_info &lookup_name, |
eb3ff9a5 | 5672 | const char *text, const char *word) |
edb3359d DJ |
5673 | { |
5674 | if (SYMBOL_CLASS (sym) == LOC_TYPEDEF) | |
5675 | { | |
5676 | struct type *t = SYMBOL_TYPE (sym); | |
78134374 | 5677 | enum type_code c = t->code (); |
edb3359d DJ |
5678 | int j; |
5679 | ||
5680 | if (c == TYPE_CODE_UNION || c == TYPE_CODE_STRUCT) | |
1f704f76 | 5681 | for (j = TYPE_N_BASECLASSES (t); j < t->num_fields (); j++) |
33d16dd9 | 5682 | if (t->field (j).name ()) |
c1b5c1eb | 5683 | completion_list_add_name (tracker, sym->language (), |
33d16dd9 | 5684 | t->field (j).name (), |
1b026119 | 5685 | lookup_name, text, word); |
edb3359d DJ |
5686 | } |
5687 | } | |
5688 | ||
f9d67a22 PA |
5689 | /* See symtab.h. */ |
5690 | ||
5691 | bool | |
5692 | symbol_is_function_or_method (symbol *sym) | |
5693 | { | |
78134374 | 5694 | switch (SYMBOL_TYPE (sym)->code ()) |
f9d67a22 PA |
5695 | { |
5696 | case TYPE_CODE_FUNC: | |
5697 | case TYPE_CODE_METHOD: | |
5698 | return true; | |
5699 | default: | |
5700 | return false; | |
5701 | } | |
5702 | } | |
5703 | ||
5704 | /* See symtab.h. */ | |
5705 | ||
5706 | bool | |
5707 | symbol_is_function_or_method (minimal_symbol *msymbol) | |
5708 | { | |
5709 | switch (MSYMBOL_TYPE (msymbol)) | |
5710 | { | |
5711 | case mst_text: | |
5712 | case mst_text_gnu_ifunc: | |
5713 | case mst_solib_trampoline: | |
5714 | case mst_file_text: | |
5715 | return true; | |
5716 | default: | |
5717 | return false; | |
5718 | } | |
5719 | } | |
5720 | ||
ca31ab1d PA |
5721 | /* See symtab.h. */ |
5722 | ||
5723 | bound_minimal_symbol | |
5724 | find_gnu_ifunc (const symbol *sym) | |
5725 | { | |
5726 | if (SYMBOL_CLASS (sym) != LOC_BLOCK) | |
5727 | return {}; | |
5728 | ||
987012b8 | 5729 | lookup_name_info lookup_name (sym->search_name (), |
ca31ab1d PA |
5730 | symbol_name_match_type::SEARCH_NAME); |
5731 | struct objfile *objfile = symbol_objfile (sym); | |
5732 | ||
2b1ffcfd | 5733 | CORE_ADDR address = BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (sym)); |
ca31ab1d PA |
5734 | minimal_symbol *ifunc = NULL; |
5735 | ||
5736 | iterate_over_minimal_symbols (objfile, lookup_name, | |
5737 | [&] (minimal_symbol *minsym) | |
5738 | { | |
5739 | if (MSYMBOL_TYPE (minsym) == mst_text_gnu_ifunc | |
f50776aa | 5740 | || MSYMBOL_TYPE (minsym) == mst_data_gnu_ifunc) |
ca31ab1d | 5741 | { |
f50776aa PA |
5742 | CORE_ADDR msym_addr = MSYMBOL_VALUE_ADDRESS (objfile, minsym); |
5743 | if (MSYMBOL_TYPE (minsym) == mst_data_gnu_ifunc) | |
5744 | { | |
08feed99 | 5745 | struct gdbarch *gdbarch = objfile->arch (); |
328d42d8 SM |
5746 | msym_addr = gdbarch_convert_from_func_ptr_addr |
5747 | (gdbarch, msym_addr, current_inferior ()->top_target ()); | |
f50776aa PA |
5748 | } |
5749 | if (msym_addr == address) | |
5750 | { | |
5751 | ifunc = minsym; | |
5752 | return true; | |
5753 | } | |
ca31ab1d PA |
5754 | } |
5755 | return false; | |
5756 | }); | |
5757 | ||
5758 | if (ifunc != NULL) | |
5759 | return {ifunc, objfile}; | |
5760 | return {}; | |
5761 | } | |
5762 | ||
e11c72c7 GB |
5763 | /* Add matching symbols from SYMTAB to the current completion list. */ |
5764 | ||
5765 | static void | |
5766 | add_symtab_completions (struct compunit_symtab *cust, | |
eb3ff9a5 | 5767 | completion_tracker &tracker, |
f9d67a22 | 5768 | complete_symbol_mode mode, |
b5ec771e | 5769 | const lookup_name_info &lookup_name, |
e11c72c7 GB |
5770 | const char *text, const char *word, |
5771 | enum type_code code) | |
5772 | { | |
5773 | struct symbol *sym; | |
5774 | const struct block *b; | |
5775 | struct block_iterator iter; | |
5776 | int i; | |
5777 | ||
ff6fa247 GB |
5778 | if (cust == NULL) |
5779 | return; | |
5780 | ||
e11c72c7 GB |
5781 | for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++) |
5782 | { | |
5783 | QUIT; | |
af39c5c8 | 5784 | b = BLOCKVECTOR_BLOCK (cust->blockvector (), i); |
e11c72c7 GB |
5785 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
5786 | { | |
f9d67a22 PA |
5787 | if (completion_skip_symbol (mode, sym)) |
5788 | continue; | |
5789 | ||
e11c72c7 GB |
5790 | if (code == TYPE_CODE_UNDEF |
5791 | || (SYMBOL_DOMAIN (sym) == STRUCT_DOMAIN | |
78134374 | 5792 | && SYMBOL_TYPE (sym)->code () == code)) |
eb3ff9a5 | 5793 | completion_list_add_symbol (tracker, sym, |
b5ec771e | 5794 | lookup_name, |
e11c72c7 GB |
5795 | text, word); |
5796 | } | |
5797 | } | |
5798 | } | |
5799 | ||
eb3ff9a5 PA |
5800 | void |
5801 | default_collect_symbol_completion_matches_break_on | |
b5ec771e PA |
5802 | (completion_tracker &tracker, complete_symbol_mode mode, |
5803 | symbol_name_match_type name_match_type, | |
eb3ff9a5 PA |
5804 | const char *text, const char *word, |
5805 | const char *break_on, enum type_code code) | |
c906108c | 5806 | { |
41d27058 JB |
5807 | /* Problem: All of the symbols have to be copied because readline |
5808 | frees them. I'm not going to worry about this; hopefully there | |
5809 | won't be that many. */ | |
5810 | ||
de4f826b | 5811 | struct symbol *sym; |
3977b71f | 5812 | const struct block *b; |
edb3359d | 5813 | const struct block *surrounding_static_block, *surrounding_global_block; |
8157b174 | 5814 | struct block_iterator iter; |
c906108c | 5815 | /* The symbol we are completing on. Points in same buffer as text. */ |
6f937416 | 5816 | const char *sym_text; |
c906108c | 5817 | |
41d27058 | 5818 | /* Now look for the symbol we are supposed to complete on. */ |
c6756f62 PA |
5819 | if (mode == complete_symbol_mode::LINESPEC) |
5820 | sym_text = text; | |
5821 | else | |
01add95b SM |
5822 | { |
5823 | const char *p; | |
5824 | char quote_found; | |
5825 | const char *quote_pos = NULL; | |
c906108c | 5826 | |
01add95b SM |
5827 | /* First see if this is a quoted string. */ |
5828 | quote_found = '\0'; | |
5829 | for (p = text; *p != '\0'; ++p) | |
5830 | { | |
5831 | if (quote_found != '\0') | |
5832 | { | |
5833 | if (*p == quote_found) | |
5834 | /* Found close quote. */ | |
5835 | quote_found = '\0'; | |
5836 | else if (*p == '\\' && p[1] == quote_found) | |
5837 | /* A backslash followed by the quote character | |
5838 | doesn't end the string. */ | |
5839 | ++p; | |
5840 | } | |
5841 | else if (*p == '\'' || *p == '"') | |
5842 | { | |
5843 | quote_found = *p; | |
5844 | quote_pos = p; | |
5845 | } | |
5846 | } | |
5847 | if (quote_found == '\'') | |
5848 | /* A string within single quotes can be a symbol, so complete on it. */ | |
5849 | sym_text = quote_pos + 1; | |
5850 | else if (quote_found == '"') | |
5851 | /* A double-quoted string is never a symbol, nor does it make sense | |
5852 | to complete it any other way. */ | |
5853 | { | |
5854 | return; | |
5855 | } | |
5856 | else | |
5857 | { | |
5858 | /* It is not a quoted string. Break it based on the characters | |
5859 | which are in symbols. */ | |
5860 | while (p > text) | |
5861 | { | |
5862 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0' | |
5863 | || p[-1] == ':' || strchr (break_on, p[-1]) != NULL) | |
5864 | --p; | |
5865 | else | |
5866 | break; | |
5867 | } | |
5868 | sym_text = p; | |
5869 | } | |
5870 | } | |
c906108c | 5871 | |
1b026119 | 5872 | lookup_name_info lookup_name (sym_text, name_match_type, true); |
b5ec771e | 5873 | |
c906108c SS |
5874 | /* At this point scan through the misc symbol vectors and add each |
5875 | symbol you find to the list. Eventually we want to ignore | |
5876 | anything that isn't a text symbol (everything else will be | |
e11c72c7 | 5877 | handled by the psymtab code below). */ |
c906108c | 5878 | |
2f68a895 TT |
5879 | if (code == TYPE_CODE_UNDEF) |
5880 | { | |
2030c079 | 5881 | for (objfile *objfile : current_program_space->objfiles ()) |
2f68a895 | 5882 | { |
7932255d | 5883 | for (minimal_symbol *msymbol : objfile->msymbols ()) |
5325b9bf TT |
5884 | { |
5885 | QUIT; | |
9af17804 | 5886 | |
5325b9bf TT |
5887 | if (completion_skip_symbol (mode, msymbol)) |
5888 | continue; | |
f9d67a22 | 5889 | |
5325b9bf TT |
5890 | completion_list_add_msymbol (tracker, msymbol, lookup_name, |
5891 | sym_text, word); | |
eb3ff9a5 | 5892 | |
5325b9bf TT |
5893 | completion_list_objc_symbol (tracker, msymbol, lookup_name, |
5894 | sym_text, word); | |
5895 | } | |
2f68a895 TT |
5896 | } |
5897 | } | |
c906108c | 5898 | |
e11c72c7 | 5899 | /* Add completions for all currently loaded symbol tables. */ |
2030c079 | 5900 | for (objfile *objfile : current_program_space->objfiles ()) |
d8aeb77f | 5901 | { |
b669c953 | 5902 | for (compunit_symtab *cust : objfile->compunits ()) |
d8aeb77f TT |
5903 | add_symtab_completions (cust, tracker, mode, lookup_name, |
5904 | sym_text, word, code); | |
5905 | } | |
e11c72c7 | 5906 | |
14bc53a8 PA |
5907 | /* Look through the partial symtabs for all symbols which begin by |
5908 | matching SYM_TEXT. Expand all CUs that you find to the list. */ | |
5909 | expand_symtabs_matching (NULL, | |
b5ec771e PA |
5910 | lookup_name, |
5911 | NULL, | |
14bc53a8 PA |
5912 | [&] (compunit_symtab *symtab) /* expansion notify */ |
5913 | { | |
5914 | add_symtab_completions (symtab, | |
f9d67a22 | 5915 | tracker, mode, lookup_name, |
1b026119 | 5916 | sym_text, word, code); |
df35e626 | 5917 | return true; |
14bc53a8 | 5918 | }, |
03a8ea51 | 5919 | SEARCH_GLOBAL_BLOCK | SEARCH_STATIC_BLOCK, |
14bc53a8 | 5920 | ALL_DOMAIN); |
e11c72c7 | 5921 | |
c906108c | 5922 | /* Search upwards from currently selected frame (so that we can |
edb3359d DJ |
5923 | complete on local vars). Also catch fields of types defined in |
5924 | this places which match our text string. Only complete on types | |
c378eb4e | 5925 | visible from current context. */ |
edb3359d DJ |
5926 | |
5927 | b = get_selected_block (0); | |
5928 | surrounding_static_block = block_static_block (b); | |
5929 | surrounding_global_block = block_global_block (b); | |
5930 | if (surrounding_static_block != NULL) | |
5931 | while (b != surrounding_static_block) | |
5932 | { | |
5933 | QUIT; | |
c906108c | 5934 | |
edb3359d DJ |
5935 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
5936 | { | |
2f68a895 TT |
5937 | if (code == TYPE_CODE_UNDEF) |
5938 | { | |
b5ec771e | 5939 | completion_list_add_symbol (tracker, sym, lookup_name, |
1b026119 | 5940 | sym_text, word); |
b5ec771e | 5941 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 5942 | sym_text, word); |
2f68a895 TT |
5943 | } |
5944 | else if (SYMBOL_DOMAIN (sym) == STRUCT_DOMAIN | |
78134374 | 5945 | && SYMBOL_TYPE (sym)->code () == code) |
b5ec771e | 5946 | completion_list_add_symbol (tracker, sym, lookup_name, |
1b026119 | 5947 | sym_text, word); |
edb3359d | 5948 | } |
c5aa993b | 5949 | |
edb3359d DJ |
5950 | /* Stop when we encounter an enclosing function. Do not stop for |
5951 | non-inlined functions - the locals of the enclosing function | |
5952 | are in scope for a nested function. */ | |
5953 | if (BLOCK_FUNCTION (b) != NULL && block_inlined_p (b)) | |
5954 | break; | |
5955 | b = BLOCK_SUPERBLOCK (b); | |
5956 | } | |
c906108c | 5957 | |
edb3359d | 5958 | /* Add fields from the file's types; symbols will be added below. */ |
c906108c | 5959 | |
2f68a895 TT |
5960 | if (code == TYPE_CODE_UNDEF) |
5961 | { | |
5962 | if (surrounding_static_block != NULL) | |
5963 | ALL_BLOCK_SYMBOLS (surrounding_static_block, iter, sym) | |
b5ec771e | 5964 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 5965 | sym_text, word); |
edb3359d | 5966 | |
2f68a895 TT |
5967 | if (surrounding_global_block != NULL) |
5968 | ALL_BLOCK_SYMBOLS (surrounding_global_block, iter, sym) | |
b5ec771e | 5969 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 5970 | sym_text, word); |
2f68a895 | 5971 | } |
c906108c | 5972 | |
2f68a895 TT |
5973 | /* Skip macros if we are completing a struct tag -- arguable but |
5974 | usually what is expected. */ | |
1ac14a04 | 5975 | if (current_language->macro_expansion () == macro_expansion_c |
2f68a895 | 5976 | && code == TYPE_CODE_UNDEF) |
9a044a89 | 5977 | { |
f6c2623e | 5978 | gdb::unique_xmalloc_ptr<struct macro_scope> scope; |
9a044a89 | 5979 | |
14bc53a8 PA |
5980 | /* This adds a macro's name to the current completion list. */ |
5981 | auto add_macro_name = [&] (const char *macro_name, | |
5982 | const macro_definition *, | |
5983 | macro_source_file *, | |
5984 | int) | |
5985 | { | |
1b026119 PA |
5986 | completion_list_add_name (tracker, language_c, macro_name, |
5987 | lookup_name, sym_text, word); | |
14bc53a8 PA |
5988 | }; |
5989 | ||
9a044a89 TT |
5990 | /* Add any macros visible in the default scope. Note that this |
5991 | may yield the occasional wrong result, because an expression | |
5992 | might be evaluated in a scope other than the default. For | |
5993 | example, if the user types "break file:line if <TAB>", the | |
5994 | resulting expression will be evaluated at "file:line" -- but | |
5995 | at there does not seem to be a way to detect this at | |
5996 | completion time. */ | |
5997 | scope = default_macro_scope (); | |
5998 | if (scope) | |
f6c2623e TT |
5999 | macro_for_each_in_scope (scope->file, scope->line, |
6000 | add_macro_name); | |
9a044a89 TT |
6001 | |
6002 | /* User-defined macros are always visible. */ | |
14bc53a8 | 6003 | macro_for_each (macro_user_macros, add_macro_name); |
9a044a89 | 6004 | } |
ef0b411a GB |
6005 | } |
6006 | ||
eb3ff9a5 PA |
6007 | /* Collect all symbols (regardless of class) which begin by matching |
6008 | TEXT. */ | |
41d27058 | 6009 | |
eb3ff9a5 PA |
6010 | void |
6011 | collect_symbol_completion_matches (completion_tracker &tracker, | |
c6756f62 | 6012 | complete_symbol_mode mode, |
b5ec771e | 6013 | symbol_name_match_type name_match_type, |
eb3ff9a5 | 6014 | const char *text, const char *word) |
41d27058 | 6015 | { |
7e56227d AB |
6016 | current_language->collect_symbol_completion_matches (tracker, mode, |
6017 | name_match_type, | |
6018 | text, word, | |
6019 | TYPE_CODE_UNDEF); | |
2f68a895 TT |
6020 | } |
6021 | ||
eb3ff9a5 PA |
6022 | /* Like collect_symbol_completion_matches, but only collect |
6023 | STRUCT_DOMAIN symbols whose type code is CODE. */ | |
2f68a895 | 6024 | |
eb3ff9a5 PA |
6025 | void |
6026 | collect_symbol_completion_matches_type (completion_tracker &tracker, | |
6027 | const char *text, const char *word, | |
6028 | enum type_code code) | |
2f68a895 | 6029 | { |
c6756f62 | 6030 | complete_symbol_mode mode = complete_symbol_mode::EXPRESSION; |
b5ec771e | 6031 | symbol_name_match_type name_match_type = symbol_name_match_type::EXPRESSION; |
c6756f62 | 6032 | |
2f68a895 TT |
6033 | gdb_assert (code == TYPE_CODE_UNION |
6034 | || code == TYPE_CODE_STRUCT | |
2f68a895 | 6035 | || code == TYPE_CODE_ENUM); |
7e56227d AB |
6036 | current_language->collect_symbol_completion_matches (tracker, mode, |
6037 | name_match_type, | |
6038 | text, word, code); | |
41d27058 JB |
6039 | } |
6040 | ||
eb3ff9a5 PA |
6041 | /* Like collect_symbol_completion_matches, but collects a list of |
6042 | symbols defined in all source files named SRCFILE. */ | |
c94fdfd0 | 6043 | |
eb3ff9a5 PA |
6044 | void |
6045 | collect_file_symbol_completion_matches (completion_tracker &tracker, | |
c6756f62 | 6046 | complete_symbol_mode mode, |
b5ec771e | 6047 | symbol_name_match_type name_match_type, |
eb3ff9a5 PA |
6048 | const char *text, const char *word, |
6049 | const char *srcfile) | |
c94fdfd0 | 6050 | { |
c94fdfd0 | 6051 | /* The symbol we are completing on. Points in same buffer as text. */ |
6f937416 | 6052 | const char *sym_text; |
c94fdfd0 EZ |
6053 | |
6054 | /* Now look for the symbol we are supposed to complete on. | |
6055 | FIXME: This should be language-specific. */ | |
c6756f62 PA |
6056 | if (mode == complete_symbol_mode::LINESPEC) |
6057 | sym_text = text; | |
6058 | else | |
01add95b SM |
6059 | { |
6060 | const char *p; | |
6061 | char quote_found; | |
6062 | const char *quote_pos = NULL; | |
c94fdfd0 | 6063 | |
01add95b SM |
6064 | /* First see if this is a quoted string. */ |
6065 | quote_found = '\0'; | |
6066 | for (p = text; *p != '\0'; ++p) | |
6067 | { | |
6068 | if (quote_found != '\0') | |
6069 | { | |
6070 | if (*p == quote_found) | |
6071 | /* Found close quote. */ | |
6072 | quote_found = '\0'; | |
6073 | else if (*p == '\\' && p[1] == quote_found) | |
6074 | /* A backslash followed by the quote character | |
6075 | doesn't end the string. */ | |
6076 | ++p; | |
6077 | } | |
6078 | else if (*p == '\'' || *p == '"') | |
6079 | { | |
6080 | quote_found = *p; | |
6081 | quote_pos = p; | |
6082 | } | |
6083 | } | |
6084 | if (quote_found == '\'') | |
6085 | /* A string within single quotes can be a symbol, so complete on it. */ | |
6086 | sym_text = quote_pos + 1; | |
6087 | else if (quote_found == '"') | |
6088 | /* A double-quoted string is never a symbol, nor does it make sense | |
6089 | to complete it any other way. */ | |
6090 | { | |
6091 | return; | |
6092 | } | |
6093 | else | |
6094 | { | |
6095 | /* Not a quoted string. */ | |
6096 | sym_text = language_search_unquoted_string (text, p); | |
6097 | } | |
6098 | } | |
c94fdfd0 | 6099 | |
1b026119 | 6100 | lookup_name_info lookup_name (sym_text, name_match_type, true); |
b5ec771e | 6101 | |
8f14146e PA |
6102 | /* Go through symtabs for SRCFILE and check the externs and statics |
6103 | for symbols which match. */ | |
6104 | iterate_over_symtabs (srcfile, [&] (symtab *s) | |
c94fdfd0 | 6105 | { |
c6159652 | 6106 | add_symtab_completions (s->compunit (), |
f9d67a22 | 6107 | tracker, mode, lookup_name, |
1b026119 | 6108 | sym_text, word, TYPE_CODE_UNDEF); |
8f14146e PA |
6109 | return false; |
6110 | }); | |
e27852be DE |
6111 | } |
6112 | ||
c94fdfd0 EZ |
6113 | /* A helper function for make_source_files_completion_list. It adds |
6114 | another file name to a list of possible completions, growing the | |
6115 | list as necessary. */ | |
6116 | ||
6117 | static void | |
6f937416 | 6118 | add_filename_to_list (const char *fname, const char *text, const char *word, |
eb3ff9a5 | 6119 | completion_list *list) |
c94fdfd0 | 6120 | { |
60a20c19 | 6121 | list->emplace_back (make_completion_match_str (fname, text, word)); |
c94fdfd0 EZ |
6122 | } |
6123 | ||
6124 | static int | |
6125 | not_interesting_fname (const char *fname) | |
6126 | { | |
6127 | static const char *illegal_aliens[] = { | |
6128 | "_globals_", /* inserted by coff_symtab_read */ | |
6129 | NULL | |
6130 | }; | |
6131 | int i; | |
6132 | ||
6133 | for (i = 0; illegal_aliens[i]; i++) | |
6134 | { | |
0ba1096a | 6135 | if (filename_cmp (fname, illegal_aliens[i]) == 0) |
c94fdfd0 EZ |
6136 | return 1; |
6137 | } | |
6138 | return 0; | |
6139 | } | |
6140 | ||
f4655dee | 6141 | /* An object of this type is passed as the callback argument to |
ccefe4c4 TT |
6142 | map_partial_symbol_filenames. */ |
6143 | struct add_partial_filename_data | |
6144 | { | |
9fdc877b | 6145 | struct filename_seen_cache *filename_seen_cache; |
6f937416 PA |
6146 | const char *text; |
6147 | const char *word; | |
ccefe4c4 | 6148 | int text_len; |
eb3ff9a5 | 6149 | completion_list *list; |
f4655dee TT |
6150 | |
6151 | void operator() (const char *filename, const char *fullname); | |
ccefe4c4 TT |
6152 | }; |
6153 | ||
6154 | /* A callback for map_partial_symbol_filenames. */ | |
eca864fe | 6155 | |
f4655dee TT |
6156 | void |
6157 | add_partial_filename_data::operator() (const char *filename, | |
6158 | const char *fullname) | |
ccefe4c4 | 6159 | { |
ccefe4c4 TT |
6160 | if (not_interesting_fname (filename)) |
6161 | return; | |
f4655dee TT |
6162 | if (!filename_seen_cache->seen (filename) |
6163 | && filename_ncmp (filename, text, text_len) == 0) | |
ccefe4c4 TT |
6164 | { |
6165 | /* This file matches for a completion; add it to the | |
6166 | current list of matches. */ | |
f4655dee | 6167 | add_filename_to_list (filename, text, word, list); |
ccefe4c4 TT |
6168 | } |
6169 | else | |
6170 | { | |
6171 | const char *base_name = lbasename (filename); | |
433759f7 | 6172 | |
ccefe4c4 | 6173 | if (base_name != filename |
f4655dee TT |
6174 | && !filename_seen_cache->seen (base_name) |
6175 | && filename_ncmp (base_name, text, text_len) == 0) | |
6176 | add_filename_to_list (base_name, text, word, list); | |
ccefe4c4 TT |
6177 | } |
6178 | } | |
6179 | ||
eb3ff9a5 | 6180 | /* Return a list of all source files whose names begin with matching |
49c4e619 | 6181 | TEXT. The file names are looked up in the symbol tables of this |
eb3ff9a5 | 6182 | program. */ |
c94fdfd0 | 6183 | |
eb3ff9a5 | 6184 | completion_list |
6f937416 | 6185 | make_source_files_completion_list (const char *text, const char *word) |
c94fdfd0 | 6186 | { |
c94fdfd0 | 6187 | size_t text_len = strlen (text); |
eb3ff9a5 | 6188 | completion_list list; |
31889e00 | 6189 | const char *base_name; |
ccefe4c4 | 6190 | struct add_partial_filename_data datum; |
c94fdfd0 | 6191 | |
c94fdfd0 EZ |
6192 | if (!have_full_symbols () && !have_partial_symbols ()) |
6193 | return list; | |
6194 | ||
bbf2f4df | 6195 | filename_seen_cache filenames_seen; |
9fdc877b | 6196 | |
2030c079 | 6197 | for (objfile *objfile : current_program_space->objfiles ()) |
c94fdfd0 | 6198 | { |
b669c953 | 6199 | for (compunit_symtab *cu : objfile->compunits ()) |
c94fdfd0 | 6200 | { |
102cc235 | 6201 | for (symtab *s : cu->filetabs ()) |
8b31193a TT |
6202 | { |
6203 | if (not_interesting_fname (s->filename)) | |
6204 | continue; | |
6205 | if (!filenames_seen.seen (s->filename) | |
6206 | && filename_ncmp (s->filename, text, text_len) == 0) | |
6207 | { | |
6208 | /* This file matches for a completion; add it to the current | |
6209 | list of matches. */ | |
6210 | add_filename_to_list (s->filename, text, word, &list); | |
6211 | } | |
6212 | else | |
6213 | { | |
6214 | /* NOTE: We allow the user to type a base name when the | |
6215 | debug info records leading directories, but not the other | |
6216 | way around. This is what subroutines of breakpoint | |
6217 | command do when they parse file names. */ | |
6218 | base_name = lbasename (s->filename); | |
6219 | if (base_name != s->filename | |
6220 | && !filenames_seen.seen (base_name) | |
6221 | && filename_ncmp (base_name, text, text_len) == 0) | |
6222 | add_filename_to_list (base_name, text, word, &list); | |
6223 | } | |
6224 | } | |
c94fdfd0 EZ |
6225 | } |
6226 | } | |
6227 | ||
bbf2f4df | 6228 | datum.filename_seen_cache = &filenames_seen; |
ccefe4c4 TT |
6229 | datum.text = text; |
6230 | datum.word = word; | |
6231 | datum.text_len = text_len; | |
6232 | datum.list = &list; | |
f4655dee | 6233 | map_symbol_filenames (datum, false /*need_fullname*/); |
9fdc877b | 6234 | |
c94fdfd0 EZ |
6235 | return list; |
6236 | } | |
c906108c | 6237 | \f |
51cc5b07 | 6238 | /* Track MAIN */ |
32ac0d11 TT |
6239 | |
6240 | /* Return the "main_info" object for the current program space. If | |
6241 | the object has not yet been created, create it and fill in some | |
6242 | default values. */ | |
6243 | ||
6244 | static struct main_info * | |
6245 | get_main_info (void) | |
6246 | { | |
a32ad8c5 | 6247 | struct main_info *info = main_progspace_key.get (current_program_space); |
32ac0d11 TT |
6248 | |
6249 | if (info == NULL) | |
6250 | { | |
3d548a53 TT |
6251 | /* It may seem strange to store the main name in the progspace |
6252 | and also in whatever objfile happens to see a main name in | |
6253 | its debug info. The reason for this is mainly historical: | |
6254 | gdb returned "main" as the name even if no function named | |
6255 | "main" was defined the program; and this approach lets us | |
6256 | keep compatibility. */ | |
a32ad8c5 | 6257 | info = main_progspace_key.emplace (current_program_space); |
32ac0d11 TT |
6258 | } |
6259 | ||
6260 | return info; | |
6261 | } | |
6262 | ||
3d548a53 | 6263 | static void |
9e6c82ad | 6264 | set_main_name (const char *name, enum language lang) |
51cc5b07 | 6265 | { |
32ac0d11 TT |
6266 | struct main_info *info = get_main_info (); |
6267 | ||
6268 | if (info->name_of_main != NULL) | |
51cc5b07 | 6269 | { |
32ac0d11 TT |
6270 | xfree (info->name_of_main); |
6271 | info->name_of_main = NULL; | |
6272 | info->language_of_main = language_unknown; | |
51cc5b07 AC |
6273 | } |
6274 | if (name != NULL) | |
6275 | { | |
32ac0d11 TT |
6276 | info->name_of_main = xstrdup (name); |
6277 | info->language_of_main = lang; | |
51cc5b07 AC |
6278 | } |
6279 | } | |
6280 | ||
ea53e89f JB |
6281 | /* Deduce the name of the main procedure, and set NAME_OF_MAIN |
6282 | accordingly. */ | |
6283 | ||
6284 | static void | |
6285 | find_main_name (void) | |
6286 | { | |
cd6c7346 | 6287 | const char *new_main_name; |
3d548a53 TT |
6288 | |
6289 | /* First check the objfiles to see whether a debuginfo reader has | |
6290 | picked up the appropriate main name. Historically the main name | |
6291 | was found in a more or less random way; this approach instead | |
6292 | relies on the order of objfile creation -- which still isn't | |
6293 | guaranteed to get the correct answer, but is just probably more | |
6294 | accurate. */ | |
2030c079 | 6295 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
6296 | { |
6297 | if (objfile->per_bfd->name_of_main != NULL) | |
6298 | { | |
6299 | set_main_name (objfile->per_bfd->name_of_main, | |
6300 | objfile->per_bfd->language_of_main); | |
6301 | return; | |
6302 | } | |
6303 | } | |
ea53e89f JB |
6304 | |
6305 | /* Try to see if the main procedure is in Ada. */ | |
6306 | /* FIXME: brobecker/2005-03-07: Another way of doing this would | |
6307 | be to add a new method in the language vector, and call this | |
6308 | method for each language until one of them returns a non-empty | |
6309 | name. This would allow us to remove this hard-coded call to | |
6310 | an Ada function. It is not clear that this is a better approach | |
6311 | at this point, because all methods need to be written in a way | |
c378eb4e | 6312 | such that false positives never be returned. For instance, it is |
ea53e89f JB |
6313 | important that a method does not return a wrong name for the main |
6314 | procedure if the main procedure is actually written in a different | |
6315 | language. It is easy to guaranty this with Ada, since we use a | |
6316 | special symbol generated only when the main in Ada to find the name | |
c378eb4e | 6317 | of the main procedure. It is difficult however to see how this can |
ea53e89f JB |
6318 | be guarantied for languages such as C, for instance. This suggests |
6319 | that order of call for these methods becomes important, which means | |
6320 | a more complicated approach. */ | |
6321 | new_main_name = ada_main_name (); | |
6322 | if (new_main_name != NULL) | |
9af17804 | 6323 | { |
9e6c82ad | 6324 | set_main_name (new_main_name, language_ada); |
ea53e89f JB |
6325 | return; |
6326 | } | |
6327 | ||
63778547 IB |
6328 | new_main_name = d_main_name (); |
6329 | if (new_main_name != NULL) | |
6330 | { | |
6331 | set_main_name (new_main_name, language_d); | |
6332 | return; | |
6333 | } | |
6334 | ||
a766d390 DE |
6335 | new_main_name = go_main_name (); |
6336 | if (new_main_name != NULL) | |
6337 | { | |
9e6c82ad | 6338 | set_main_name (new_main_name, language_go); |
a766d390 DE |
6339 | return; |
6340 | } | |
6341 | ||
cd6c7346 PM |
6342 | new_main_name = pascal_main_name (); |
6343 | if (new_main_name != NULL) | |
9af17804 | 6344 | { |
9e6c82ad | 6345 | set_main_name (new_main_name, language_pascal); |
cd6c7346 PM |
6346 | return; |
6347 | } | |
6348 | ||
ea53e89f JB |
6349 | /* The languages above didn't identify the name of the main procedure. |
6350 | Fallback to "main". */ | |
d3214198 TV |
6351 | |
6352 | /* Try to find language for main in psymtabs. */ | |
6353 | enum language lang | |
6354 | = find_quick_global_symbol_language ("main", VAR_DOMAIN); | |
6355 | if (lang != language_unknown) | |
6356 | { | |
6357 | set_main_name ("main", lang); | |
6358 | return; | |
6359 | } | |
6360 | ||
9e6c82ad | 6361 | set_main_name ("main", language_unknown); |
ea53e89f JB |
6362 | } |
6363 | ||
cd215b2e TT |
6364 | /* See symtab.h. */ |
6365 | ||
6366 | const char * | |
6367 | main_name () | |
51cc5b07 | 6368 | { |
32ac0d11 TT |
6369 | struct main_info *info = get_main_info (); |
6370 | ||
6371 | if (info->name_of_main == NULL) | |
ea53e89f JB |
6372 | find_main_name (); |
6373 | ||
32ac0d11 | 6374 | return info->name_of_main; |
51cc5b07 AC |
6375 | } |
6376 | ||
9e6c82ad TT |
6377 | /* Return the language of the main function. If it is not known, |
6378 | return language_unknown. */ | |
6379 | ||
6380 | enum language | |
6381 | main_language (void) | |
6382 | { | |
32ac0d11 TT |
6383 | struct main_info *info = get_main_info (); |
6384 | ||
6385 | if (info->name_of_main == NULL) | |
6386 | find_main_name (); | |
6387 | ||
6388 | return info->language_of_main; | |
9e6c82ad TT |
6389 | } |
6390 | ||
ea53e89f JB |
6391 | /* Handle ``executable_changed'' events for the symtab module. */ |
6392 | ||
6393 | static void | |
781b42b0 | 6394 | symtab_observer_executable_changed (void) |
ea53e89f JB |
6395 | { |
6396 | /* NAME_OF_MAIN may no longer be the same, so reset it for now. */ | |
9e6c82ad | 6397 | set_main_name (NULL, language_unknown); |
ea53e89f | 6398 | } |
51cc5b07 | 6399 | |
a6c727b2 DJ |
6400 | /* Return 1 if the supplied producer string matches the ARM RealView |
6401 | compiler (armcc). */ | |
6402 | ||
ececd218 | 6403 | bool |
a6c727b2 DJ |
6404 | producer_is_realview (const char *producer) |
6405 | { | |
6406 | static const char *const arm_idents[] = { | |
6407 | "ARM C Compiler, ADS", | |
6408 | "Thumb C Compiler, ADS", | |
6409 | "ARM C++ Compiler, ADS", | |
6410 | "Thumb C++ Compiler, ADS", | |
6411 | "ARM/Thumb C/C++ Compiler, RVCT", | |
6412 | "ARM C/C++ Compiler, RVCT" | |
6413 | }; | |
a6c727b2 DJ |
6414 | |
6415 | if (producer == NULL) | |
ececd218 | 6416 | return false; |
a6c727b2 | 6417 | |
696d6f4d TT |
6418 | for (const char *ident : arm_idents) |
6419 | if (startswith (producer, ident)) | |
ececd218 | 6420 | return true; |
a6c727b2 | 6421 | |
ececd218 | 6422 | return false; |
a6c727b2 | 6423 | } |
ed0616c6 | 6424 | |
f1e6e072 TT |
6425 | \f |
6426 | ||
6427 | /* The next index to hand out in response to a registration request. */ | |
6428 | ||
6429 | static int next_aclass_value = LOC_FINAL_VALUE; | |
6430 | ||
6431 | /* The maximum number of "aclass" registrations we support. This is | |
6432 | constant for convenience. */ | |
6433 | #define MAX_SYMBOL_IMPLS (LOC_FINAL_VALUE + 10) | |
6434 | ||
6435 | /* The objects representing the various "aclass" values. The elements | |
6436 | from 0 up to LOC_FINAL_VALUE-1 represent themselves, and subsequent | |
6437 | elements are those registered at gdb initialization time. */ | |
6438 | ||
6439 | static struct symbol_impl symbol_impl[MAX_SYMBOL_IMPLS]; | |
6440 | ||
6441 | /* The globally visible pointer. This is separate from 'symbol_impl' | |
6442 | so that it can be const. */ | |
6443 | ||
6444 | const struct symbol_impl *symbol_impls = &symbol_impl[0]; | |
6445 | ||
6446 | /* Make sure we saved enough room in struct symbol. */ | |
6447 | ||
6448 | gdb_static_assert (MAX_SYMBOL_IMPLS <= (1 << SYMBOL_ACLASS_BITS)); | |
6449 | ||
6450 | /* Register a computed symbol type. ACLASS must be LOC_COMPUTED. OPS | |
6451 | is the ops vector associated with this index. This returns the new | |
6452 | index, which should be used as the aclass_index field for symbols | |
6453 | of this type. */ | |
6454 | ||
6455 | int | |
6456 | register_symbol_computed_impl (enum address_class aclass, | |
6457 | const struct symbol_computed_ops *ops) | |
6458 | { | |
6459 | int result = next_aclass_value++; | |
6460 | ||
6461 | gdb_assert (aclass == LOC_COMPUTED); | |
6462 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6463 | symbol_impl[result].aclass = aclass; | |
6464 | symbol_impl[result].ops_computed = ops; | |
6465 | ||
24d6c2a0 TT |
6466 | /* Sanity check OPS. */ |
6467 | gdb_assert (ops != NULL); | |
6468 | gdb_assert (ops->tracepoint_var_ref != NULL); | |
6469 | gdb_assert (ops->describe_location != NULL); | |
0b31a4bc | 6470 | gdb_assert (ops->get_symbol_read_needs != NULL); |
24d6c2a0 TT |
6471 | gdb_assert (ops->read_variable != NULL); |
6472 | ||
f1e6e072 TT |
6473 | return result; |
6474 | } | |
6475 | ||
6476 | /* Register a function with frame base type. ACLASS must be LOC_BLOCK. | |
6477 | OPS is the ops vector associated with this index. This returns the | |
6478 | new index, which should be used as the aclass_index field for symbols | |
6479 | of this type. */ | |
6480 | ||
6481 | int | |
6482 | register_symbol_block_impl (enum address_class aclass, | |
6483 | const struct symbol_block_ops *ops) | |
6484 | { | |
6485 | int result = next_aclass_value++; | |
6486 | ||
6487 | gdb_assert (aclass == LOC_BLOCK); | |
6488 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6489 | symbol_impl[result].aclass = aclass; | |
6490 | symbol_impl[result].ops_block = ops; | |
6491 | ||
6492 | /* Sanity check OPS. */ | |
6493 | gdb_assert (ops != NULL); | |
6494 | gdb_assert (ops->find_frame_base_location != NULL); | |
6495 | ||
6496 | return result; | |
6497 | } | |
6498 | ||
6499 | /* Register a register symbol type. ACLASS must be LOC_REGISTER or | |
6500 | LOC_REGPARM_ADDR. OPS is the register ops vector associated with | |
6501 | this index. This returns the new index, which should be used as | |
6502 | the aclass_index field for symbols of this type. */ | |
6503 | ||
6504 | int | |
6505 | register_symbol_register_impl (enum address_class aclass, | |
6506 | const struct symbol_register_ops *ops) | |
6507 | { | |
6508 | int result = next_aclass_value++; | |
6509 | ||
6510 | gdb_assert (aclass == LOC_REGISTER || aclass == LOC_REGPARM_ADDR); | |
6511 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6512 | symbol_impl[result].aclass = aclass; | |
6513 | symbol_impl[result].ops_register = ops; | |
6514 | ||
6515 | return result; | |
6516 | } | |
6517 | ||
6518 | /* Initialize elements of 'symbol_impl' for the constants in enum | |
6519 | address_class. */ | |
6520 | ||
6521 | static void | |
6522 | initialize_ordinary_address_classes (void) | |
6523 | { | |
6524 | int i; | |
6525 | ||
6526 | for (i = 0; i < LOC_FINAL_VALUE; ++i) | |
aead7601 | 6527 | symbol_impl[i].aclass = (enum address_class) i; |
f1e6e072 TT |
6528 | } |
6529 | ||
6530 | \f | |
6531 | ||
08be3fe3 DE |
6532 | /* See symtab.h. */ |
6533 | ||
6534 | struct objfile * | |
6535 | symbol_objfile (const struct symbol *symbol) | |
6536 | { | |
1994afbf | 6537 | gdb_assert (SYMBOL_OBJFILE_OWNED (symbol)); |
65209971 | 6538 | return symbol->owner.symtab->objfile (); |
08be3fe3 DE |
6539 | } |
6540 | ||
6541 | /* See symtab.h. */ | |
6542 | ||
6543 | struct gdbarch * | |
6544 | symbol_arch (const struct symbol *symbol) | |
6545 | { | |
1994afbf DE |
6546 | if (!SYMBOL_OBJFILE_OWNED (symbol)) |
6547 | return symbol->owner.arch; | |
65209971 | 6548 | return symbol->owner.symtab->objfile ()->arch (); |
08be3fe3 DE |
6549 | } |
6550 | ||
6551 | /* See symtab.h. */ | |
6552 | ||
6553 | struct symtab * | |
6554 | symbol_symtab (const struct symbol *symbol) | |
6555 | { | |
1994afbf DE |
6556 | gdb_assert (SYMBOL_OBJFILE_OWNED (symbol)); |
6557 | return symbol->owner.symtab; | |
08be3fe3 DE |
6558 | } |
6559 | ||
6560 | /* See symtab.h. */ | |
6561 | ||
6562 | void | |
6563 | symbol_set_symtab (struct symbol *symbol, struct symtab *symtab) | |
6564 | { | |
1994afbf DE |
6565 | gdb_assert (SYMBOL_OBJFILE_OWNED (symbol)); |
6566 | symbol->owner.symtab = symtab; | |
08be3fe3 DE |
6567 | } |
6568 | ||
4b610737 TT |
6569 | /* See symtab.h. */ |
6570 | ||
6571 | CORE_ADDR | |
6572 | get_symbol_address (const struct symbol *sym) | |
6573 | { | |
6574 | gdb_assert (sym->maybe_copied); | |
6575 | gdb_assert (SYMBOL_CLASS (sym) == LOC_STATIC); | |
6576 | ||
987012b8 | 6577 | const char *linkage_name = sym->linkage_name (); |
4b610737 TT |
6578 | |
6579 | for (objfile *objfile : current_program_space->objfiles ()) | |
6580 | { | |
3e65b3e9 TT |
6581 | if (objfile->separate_debug_objfile_backlink != nullptr) |
6582 | continue; | |
6583 | ||
4b610737 TT |
6584 | bound_minimal_symbol minsym |
6585 | = lookup_minimal_symbol_linkage (linkage_name, objfile); | |
6586 | if (minsym.minsym != nullptr) | |
6587 | return BMSYMBOL_VALUE_ADDRESS (minsym); | |
6588 | } | |
468c0cbb | 6589 | return sym->value.address; |
4b610737 TT |
6590 | } |
6591 | ||
6592 | /* See symtab.h. */ | |
6593 | ||
6594 | CORE_ADDR | |
6595 | get_msymbol_address (struct objfile *objf, const struct minimal_symbol *minsym) | |
6596 | { | |
6597 | gdb_assert (minsym->maybe_copied); | |
6598 | gdb_assert ((objf->flags & OBJF_MAINLINE) == 0); | |
6599 | ||
c9d95fa3 | 6600 | const char *linkage_name = minsym->linkage_name (); |
4b610737 TT |
6601 | |
6602 | for (objfile *objfile : current_program_space->objfiles ()) | |
6603 | { | |
3e65b3e9 TT |
6604 | if (objfile->separate_debug_objfile_backlink == nullptr |
6605 | && (objfile->flags & OBJF_MAINLINE) != 0) | |
4b610737 TT |
6606 | { |
6607 | bound_minimal_symbol found | |
6608 | = lookup_minimal_symbol_linkage (linkage_name, objfile); | |
6609 | if (found.minsym != nullptr) | |
6610 | return BMSYMBOL_VALUE_ADDRESS (found); | |
6611 | } | |
6612 | } | |
a52d653e AB |
6613 | return (minsym->value.address |
6614 | + objf->section_offsets[minsym->section_index ()]); | |
4b610737 TT |
6615 | } |
6616 | ||
e623cf5d TT |
6617 | \f |
6618 | ||
165f8965 AB |
6619 | /* Hold the sub-commands of 'info module'. */ |
6620 | ||
6621 | static struct cmd_list_element *info_module_cmdlist = NULL; | |
6622 | ||
165f8965 AB |
6623 | /* See symtab.h. */ |
6624 | ||
6625 | std::vector<module_symbol_search> | |
6626 | search_module_symbols (const char *module_regexp, const char *regexp, | |
6627 | const char *type_regexp, search_domain kind) | |
6628 | { | |
6629 | std::vector<module_symbol_search> results; | |
6630 | ||
6631 | /* Search for all modules matching MODULE_REGEXP. */ | |
470c0b1c AB |
6632 | global_symbol_searcher spec1 (MODULES_DOMAIN, module_regexp); |
6633 | spec1.set_exclude_minsyms (true); | |
6634 | std::vector<symbol_search> modules = spec1.search (); | |
165f8965 AB |
6635 | |
6636 | /* Now search for all symbols of the required KIND matching the required | |
6637 | regular expressions. We figure out which ones are in which modules | |
6638 | below. */ | |
470c0b1c AB |
6639 | global_symbol_searcher spec2 (kind, regexp); |
6640 | spec2.set_symbol_type_regexp (type_regexp); | |
6641 | spec2.set_exclude_minsyms (true); | |
6642 | std::vector<symbol_search> symbols = spec2.search (); | |
165f8965 AB |
6643 | |
6644 | /* Now iterate over all MODULES, checking to see which items from | |
6645 | SYMBOLS are in each module. */ | |
6646 | for (const symbol_search &p : modules) | |
6647 | { | |
6648 | QUIT; | |
6649 | ||
6650 | /* This is a module. */ | |
6651 | gdb_assert (p.symbol != nullptr); | |
6652 | ||
987012b8 | 6653 | std::string prefix = p.symbol->print_name (); |
165f8965 AB |
6654 | prefix += "::"; |
6655 | ||
6656 | for (const symbol_search &q : symbols) | |
6657 | { | |
6658 | if (q.symbol == nullptr) | |
6659 | continue; | |
6660 | ||
987012b8 | 6661 | if (strncmp (q.symbol->print_name (), prefix.c_str (), |
165f8965 AB |
6662 | prefix.size ()) != 0) |
6663 | continue; | |
6664 | ||
6665 | results.push_back ({p, q}); | |
6666 | } | |
6667 | } | |
6668 | ||
6669 | return results; | |
6670 | } | |
6671 | ||
6672 | /* Implement the core of both 'info module functions' and 'info module | |
6673 | variables'. */ | |
6674 | ||
6675 | static void | |
6676 | info_module_subcommand (bool quiet, const char *module_regexp, | |
6677 | const char *regexp, const char *type_regexp, | |
6678 | search_domain kind) | |
6679 | { | |
6680 | /* Print a header line. Don't build the header line bit by bit as this | |
6681 | prevents internationalisation. */ | |
6682 | if (!quiet) | |
6683 | { | |
6684 | if (module_regexp == nullptr) | |
6685 | { | |
6686 | if (type_regexp == nullptr) | |
6687 | { | |
6688 | if (regexp == nullptr) | |
6689 | printf_filtered ((kind == VARIABLES_DOMAIN | |
6690 | ? _("All variables in all modules:") | |
6691 | : _("All functions in all modules:"))); | |
6692 | else | |
6693 | printf_filtered | |
6694 | ((kind == VARIABLES_DOMAIN | |
6695 | ? _("All variables matching regular expression" | |
6696 | " \"%s\" in all modules:") | |
6697 | : _("All functions matching regular expression" | |
6698 | " \"%s\" in all modules:")), | |
6699 | regexp); | |
6700 | } | |
6701 | else | |
6702 | { | |
6703 | if (regexp == nullptr) | |
6704 | printf_filtered | |
6705 | ((kind == VARIABLES_DOMAIN | |
6706 | ? _("All variables with type matching regular " | |
6707 | "expression \"%s\" in all modules:") | |
6708 | : _("All functions with type matching regular " | |
6709 | "expression \"%s\" in all modules:")), | |
6710 | type_regexp); | |
6711 | else | |
6712 | printf_filtered | |
6713 | ((kind == VARIABLES_DOMAIN | |
6714 | ? _("All variables matching regular expression " | |
6715 | "\"%s\",\n\twith type matching regular " | |
6716 | "expression \"%s\" in all modules:") | |
6717 | : _("All functions matching regular expression " | |
6718 | "\"%s\",\n\twith type matching regular " | |
6719 | "expression \"%s\" in all modules:")), | |
6720 | regexp, type_regexp); | |
6721 | } | |
6722 | } | |
6723 | else | |
6724 | { | |
6725 | if (type_regexp == nullptr) | |
6726 | { | |
6727 | if (regexp == nullptr) | |
6728 | printf_filtered | |
6729 | ((kind == VARIABLES_DOMAIN | |
6730 | ? _("All variables in all modules matching regular " | |
6731 | "expression \"%s\":") | |
6732 | : _("All functions in all modules matching regular " | |
6733 | "expression \"%s\":")), | |
6734 | module_regexp); | |
6735 | else | |
6736 | printf_filtered | |
6737 | ((kind == VARIABLES_DOMAIN | |
6738 | ? _("All variables matching regular expression " | |
6739 | "\"%s\",\n\tin all modules matching regular " | |
6740 | "expression \"%s\":") | |
6741 | : _("All functions matching regular expression " | |
6742 | "\"%s\",\n\tin all modules matching regular " | |
6743 | "expression \"%s\":")), | |
6744 | regexp, module_regexp); | |
6745 | } | |
6746 | else | |
6747 | { | |
6748 | if (regexp == nullptr) | |
6749 | printf_filtered | |
6750 | ((kind == VARIABLES_DOMAIN | |
6751 | ? _("All variables with type matching regular " | |
6752 | "expression \"%s\"\n\tin all modules matching " | |
6753 | "regular expression \"%s\":") | |
6754 | : _("All functions with type matching regular " | |
6755 | "expression \"%s\"\n\tin all modules matching " | |
6756 | "regular expression \"%s\":")), | |
6757 | type_regexp, module_regexp); | |
6758 | else | |
6759 | printf_filtered | |
6760 | ((kind == VARIABLES_DOMAIN | |
6761 | ? _("All variables matching regular expression " | |
6762 | "\"%s\",\n\twith type matching regular expression " | |
6763 | "\"%s\",\n\tin all modules matching regular " | |
6764 | "expression \"%s\":") | |
6765 | : _("All functions matching regular expression " | |
6766 | "\"%s\",\n\twith type matching regular expression " | |
6767 | "\"%s\",\n\tin all modules matching regular " | |
6768 | "expression \"%s\":")), | |
6769 | regexp, type_regexp, module_regexp); | |
6770 | } | |
6771 | } | |
6772 | printf_filtered ("\n"); | |
6773 | } | |
6774 | ||
6775 | /* Find all symbols of type KIND matching the given regular expressions | |
6776 | along with the symbols for the modules in which those symbols | |
6777 | reside. */ | |
6778 | std::vector<module_symbol_search> module_symbols | |
6779 | = search_module_symbols (module_regexp, regexp, type_regexp, kind); | |
6780 | ||
6781 | std::sort (module_symbols.begin (), module_symbols.end (), | |
6782 | [] (const module_symbol_search &a, const module_symbol_search &b) | |
6783 | { | |
6784 | if (a.first < b.first) | |
6785 | return true; | |
6786 | else if (a.first == b.first) | |
6787 | return a.second < b.second; | |
6788 | else | |
6789 | return false; | |
6790 | }); | |
6791 | ||
6792 | const char *last_filename = ""; | |
6793 | const symbol *last_module_symbol = nullptr; | |
6794 | for (const module_symbol_search &ms : module_symbols) | |
6795 | { | |
6796 | const symbol_search &p = ms.first; | |
6797 | const symbol_search &q = ms.second; | |
6798 | ||
6799 | gdb_assert (q.symbol != nullptr); | |
6800 | ||
6801 | if (last_module_symbol != p.symbol) | |
6802 | { | |
6803 | printf_filtered ("\n"); | |
987012b8 | 6804 | printf_filtered (_("Module \"%s\":\n"), p.symbol->print_name ()); |
165f8965 AB |
6805 | last_module_symbol = p.symbol; |
6806 | last_filename = ""; | |
6807 | } | |
6808 | ||
6809 | print_symbol_info (FUNCTIONS_DOMAIN, q.symbol, q.block, | |
6810 | last_filename); | |
6811 | last_filename | |
6812 | = symtab_to_filename_for_display (symbol_symtab (q.symbol)); | |
6813 | } | |
6814 | } | |
6815 | ||
6816 | /* Hold the option values for the 'info module .....' sub-commands. */ | |
6817 | ||
6818 | struct info_modules_var_func_options | |
6819 | { | |
6820 | bool quiet = false; | |
e0700ba4 SM |
6821 | std::string type_regexp; |
6822 | std::string module_regexp; | |
165f8965 AB |
6823 | }; |
6824 | ||
6825 | /* The options used by 'info module variables' and 'info module functions' | |
6826 | commands. */ | |
6827 | ||
6828 | static const gdb::option::option_def info_modules_var_func_options_defs [] = { | |
6829 | gdb::option::boolean_option_def<info_modules_var_func_options> { | |
6830 | "q", | |
6831 | [] (info_modules_var_func_options *opt) { return &opt->quiet; }, | |
6832 | nullptr, /* show_cmd_cb */ | |
6833 | nullptr /* set_doc */ | |
6834 | }, | |
6835 | ||
6836 | gdb::option::string_option_def<info_modules_var_func_options> { | |
6837 | "t", | |
6838 | [] (info_modules_var_func_options *opt) { return &opt->type_regexp; }, | |
6839 | nullptr, /* show_cmd_cb */ | |
6840 | nullptr /* set_doc */ | |
6841 | }, | |
6842 | ||
6843 | gdb::option::string_option_def<info_modules_var_func_options> { | |
6844 | "m", | |
6845 | [] (info_modules_var_func_options *opt) { return &opt->module_regexp; }, | |
6846 | nullptr, /* show_cmd_cb */ | |
6847 | nullptr /* set_doc */ | |
6848 | } | |
6849 | }; | |
6850 | ||
6851 | /* Return the option group used by the 'info module ...' sub-commands. */ | |
6852 | ||
6853 | static inline gdb::option::option_def_group | |
6854 | make_info_modules_var_func_options_def_group | |
6855 | (info_modules_var_func_options *opts) | |
6856 | { | |
6857 | return {{info_modules_var_func_options_defs}, opts}; | |
6858 | } | |
6859 | ||
6860 | /* Implements the 'info module functions' command. */ | |
6861 | ||
6862 | static void | |
6863 | info_module_functions_command (const char *args, int from_tty) | |
6864 | { | |
6865 | info_modules_var_func_options opts; | |
6866 | auto grp = make_info_modules_var_func_options_def_group (&opts); | |
6867 | gdb::option::process_options | |
6868 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
6869 | if (args != nullptr && *args == '\0') | |
6870 | args = nullptr; | |
6871 | ||
e0700ba4 SM |
6872 | info_module_subcommand |
6873 | (opts.quiet, | |
6874 | opts.module_regexp.empty () ? nullptr : opts.module_regexp.c_str (), args, | |
6875 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
6876 | FUNCTIONS_DOMAIN); | |
165f8965 AB |
6877 | } |
6878 | ||
6879 | /* Implements the 'info module variables' command. */ | |
6880 | ||
6881 | static void | |
6882 | info_module_variables_command (const char *args, int from_tty) | |
6883 | { | |
6884 | info_modules_var_func_options opts; | |
6885 | auto grp = make_info_modules_var_func_options_def_group (&opts); | |
6886 | gdb::option::process_options | |
6887 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
6888 | if (args != nullptr && *args == '\0') | |
6889 | args = nullptr; | |
6890 | ||
e0700ba4 SM |
6891 | info_module_subcommand |
6892 | (opts.quiet, | |
6893 | opts.module_regexp.empty () ? nullptr : opts.module_regexp.c_str (), args, | |
6894 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
6895 | VARIABLES_DOMAIN); | |
165f8965 AB |
6896 | } |
6897 | ||
6898 | /* Command completer for 'info module ...' sub-commands. */ | |
6899 | ||
6900 | static void | |
6901 | info_module_var_func_command_completer (struct cmd_list_element *ignore, | |
6902 | completion_tracker &tracker, | |
6903 | const char *text, | |
6904 | const char * /* word */) | |
6905 | { | |
6906 | ||
6907 | const auto group = make_info_modules_var_func_options_def_group (nullptr); | |
6908 | if (gdb::option::complete_options | |
6909 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
6910 | return; | |
6911 | ||
6912 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
6913 | symbol_completer (ignore, tracker, text, word); | |
6914 | } | |
6915 | ||
6916 | \f | |
6917 | ||
6c265988 | 6918 | void _initialize_symtab (); |
c906108c | 6919 | void |
6c265988 | 6920 | _initialize_symtab () |
c906108c | 6921 | { |
60cfcb20 AB |
6922 | cmd_list_element *c; |
6923 | ||
f1e6e072 TT |
6924 | initialize_ordinary_address_classes (); |
6925 | ||
60cfcb20 AB |
6926 | c = add_info ("variables", info_variables_command, |
6927 | info_print_args_help (_("\ | |
12615cba | 6928 | All global and static variable names or those matching REGEXPs.\n\ |
4acfdd20 | 6929 | Usage: info variables [-q] [-n] [-t TYPEREGEXP] [NAMEREGEXP]\n\ |
12615cba | 6930 | Prints the global and static variables.\n"), |
4acfdd20 AB |
6931 | _("global and static variables"), |
6932 | true)); | |
095252be | 6933 | set_cmd_completer_handle_brkchars (c, info_vars_funcs_command_completer); |
c906108c | 6934 | if (dbx_commands) |
60cfcb20 AB |
6935 | { |
6936 | c = add_com ("whereis", class_info, info_variables_command, | |
6937 | info_print_args_help (_("\ | |
12615cba | 6938 | All global and static variable names, or those matching REGEXPs.\n\ |
4acfdd20 | 6939 | Usage: whereis [-q] [-n] [-t TYPEREGEXP] [NAMEREGEXP]\n\ |
12615cba | 6940 | Prints the global and static variables.\n"), |
4acfdd20 AB |
6941 | _("global and static variables"), |
6942 | true)); | |
095252be | 6943 | set_cmd_completer_handle_brkchars (c, info_vars_funcs_command_completer); |
60cfcb20 | 6944 | } |
c906108c | 6945 | |
60cfcb20 AB |
6946 | c = add_info ("functions", info_functions_command, |
6947 | info_print_args_help (_("\ | |
12615cba | 6948 | All function names or those matching REGEXPs.\n\ |
4acfdd20 | 6949 | Usage: info functions [-q] [-n] [-t TYPEREGEXP] [NAMEREGEXP]\n\ |
12615cba | 6950 | Prints the functions.\n"), |
4acfdd20 AB |
6951 | _("functions"), |
6952 | true)); | |
095252be | 6953 | set_cmd_completer_handle_brkchars (c, info_vars_funcs_command_completer); |
c906108c | 6954 | |
a8eab7c6 AB |
6955 | c = add_info ("types", info_types_command, _("\ |
6956 | All type names, or those matching REGEXP.\n\ | |
6957 | Usage: info types [-q] [REGEXP]\n\ | |
6958 | Print information about all types matching REGEXP, or all types if no\n\ | |
6959 | REGEXP is given. The optional flag -q disables printing of headers.")); | |
6960 | set_cmd_completer_handle_brkchars (c, info_types_command_completer); | |
c906108c | 6961 | |
0e350a05 AB |
6962 | const auto info_sources_opts |
6963 | = make_info_sources_options_def_group (nullptr); | |
28cd9371 PW |
6964 | |
6965 | static std::string info_sources_help | |
6966 | = gdb::option::build_help (_("\ | |
6967 | All source files in the program or those matching REGEXP.\n\ | |
6968 | Usage: info sources [OPTION]... [REGEXP]\n\ | |
6969 | By default, REGEXP is used to match anywhere in the filename.\n\ | |
6970 | \n\ | |
6971 | Options:\n\ | |
6972 | %OPTIONS%"), | |
6973 | info_sources_opts); | |
6974 | ||
6975 | c = add_info ("sources", info_sources_command, info_sources_help.c_str ()); | |
6976 | set_cmd_completer_handle_brkchars (c, info_sources_command_completer); | |
c906108c | 6977 | |
59c35742 AB |
6978 | c = add_info ("modules", info_modules_command, |
6979 | _("All module names, or those matching REGEXP.")); | |
6980 | set_cmd_completer_handle_brkchars (c, info_types_command_completer); | |
6981 | ||
0743fc83 | 6982 | add_basic_prefix_cmd ("module", class_info, _("\ |
165f8965 | 6983 | Print information about modules."), |
2f822da5 | 6984 | &info_module_cmdlist, 0, &infolist); |
165f8965 AB |
6985 | |
6986 | c = add_cmd ("functions", class_info, info_module_functions_command, _("\ | |
6987 | Display functions arranged by modules.\n\ | |
6988 | Usage: info module functions [-q] [-m MODREGEXP] [-t TYPEREGEXP] [REGEXP]\n\ | |
6989 | Print a summary of all functions within each Fortran module, grouped by\n\ | |
6990 | module and file. For each function the line on which the function is\n\ | |
6991 | defined is given along with the type signature and name of the function.\n\ | |
6992 | \n\ | |
6993 | If REGEXP is provided then only functions whose name matches REGEXP are\n\ | |
6994 | listed. If MODREGEXP is provided then only functions in modules matching\n\ | |
6995 | MODREGEXP are listed. If TYPEREGEXP is given then only functions whose\n\ | |
6996 | type signature matches TYPEREGEXP are listed.\n\ | |
6997 | \n\ | |
6998 | The -q flag suppresses printing some header information."), | |
6999 | &info_module_cmdlist); | |
7000 | set_cmd_completer_handle_brkchars | |
7001 | (c, info_module_var_func_command_completer); | |
7002 | ||
7003 | c = add_cmd ("variables", class_info, info_module_variables_command, _("\ | |
7004 | Display variables arranged by modules.\n\ | |
7005 | Usage: info module variables [-q] [-m MODREGEXP] [-t TYPEREGEXP] [REGEXP]\n\ | |
7006 | Print a summary of all variables within each Fortran module, grouped by\n\ | |
7007 | module and file. For each variable the line on which the variable is\n\ | |
7008 | defined is given along with the type and name of the variable.\n\ | |
7009 | \n\ | |
7010 | If REGEXP is provided then only variables whose name matches REGEXP are\n\ | |
7011 | listed. If MODREGEXP is provided then only variables in modules matching\n\ | |
7012 | MODREGEXP are listed. If TYPEREGEXP is given then only variables whose\n\ | |
7013 | type matches TYPEREGEXP are listed.\n\ | |
7014 | \n\ | |
7015 | The -q flag suppresses printing some header information."), | |
7016 | &info_module_cmdlist); | |
7017 | set_cmd_completer_handle_brkchars | |
7018 | (c, info_module_var_func_command_completer); | |
7019 | ||
c906108c | 7020 | add_com ("rbreak", class_breakpoint, rbreak_command, |
1bedd215 | 7021 | _("Set a breakpoint for all functions matching REGEXP.")); |
c906108c | 7022 | |
717d2f5a | 7023 | add_setshow_enum_cmd ("multiple-symbols", no_class, |
dda83cd7 SM |
7024 | multiple_symbols_modes, &multiple_symbols_mode, |
7025 | _("\ | |
590042fc | 7026 | Set how the debugger handles ambiguities in expressions."), _("\ |
717d2f5a JB |
7027 | Show how the debugger handles ambiguities in expressions."), _("\ |
7028 | Valid values are \"ask\", \"all\", \"cancel\", and the default is \"all\"."), | |
dda83cd7 | 7029 | NULL, NULL, &setlist, &showlist); |
717d2f5a | 7030 | |
c011a4f4 DE |
7031 | add_setshow_boolean_cmd ("basenames-may-differ", class_obscure, |
7032 | &basenames_may_differ, _("\ | |
7033 | Set whether a source file may have multiple base names."), _("\ | |
7034 | Show whether a source file may have multiple base names."), _("\ | |
7035 | (A \"base name\" is the name of a file with the directory part removed.\n\ | |
7036 | Example: The base name of \"/home/user/hello.c\" is \"hello.c\".)\n\ | |
7037 | If set, GDB will canonicalize file names (e.g., expand symlinks)\n\ | |
7038 | before comparing them. Canonicalization is an expensive operation,\n\ | |
7039 | but it allows the same file be known by more than one base name.\n\ | |
7040 | If not set (the default), all source files are assumed to have just\n\ | |
7041 | one base name, and gdb will do file name comparisons more efficiently."), | |
7042 | NULL, NULL, | |
7043 | &setlist, &showlist); | |
7044 | ||
db0fec5c DE |
7045 | add_setshow_zuinteger_cmd ("symtab-create", no_class, &symtab_create_debug, |
7046 | _("Set debugging of symbol table creation."), | |
7047 | _("Show debugging of symbol table creation."), _("\ | |
7048 | When enabled (non-zero), debugging messages are printed when building\n\ | |
7049 | symbol tables. A value of 1 (one) normally provides enough information.\n\ | |
7050 | A value greater than 1 provides more verbose information."), | |
7051 | NULL, | |
7052 | NULL, | |
7053 | &setdebuglist, &showdebuglist); | |
45cfd468 | 7054 | |
cc485e62 DE |
7055 | add_setshow_zuinteger_cmd ("symbol-lookup", no_class, &symbol_lookup_debug, |
7056 | _("\ | |
7057 | Set debugging of symbol lookup."), _("\ | |
7058 | Show debugging of symbol lookup."), _("\ | |
7059 | When enabled (non-zero), symbol lookups are logged."), | |
7060 | NULL, NULL, | |
7061 | &setdebuglist, &showdebuglist); | |
7062 | ||
f57d2163 DE |
7063 | add_setshow_zuinteger_cmd ("symbol-cache-size", no_class, |
7064 | &new_symbol_cache_size, | |
7065 | _("Set the size of the symbol cache."), | |
7066 | _("Show the size of the symbol cache."), _("\ | |
7067 | The size of the symbol cache.\n\ | |
7068 | If zero then the symbol cache is disabled."), | |
7069 | set_symbol_cache_size_handler, NULL, | |
7070 | &maintenance_set_cmdlist, | |
7071 | &maintenance_show_cmdlist); | |
7072 | ||
7073 | add_cmd ("symbol-cache", class_maintenance, maintenance_print_symbol_cache, | |
7074 | _("Dump the symbol cache for each program space."), | |
7075 | &maintenanceprintlist); | |
7076 | ||
7077 | add_cmd ("symbol-cache-statistics", class_maintenance, | |
7078 | maintenance_print_symbol_cache_statistics, | |
7079 | _("Print symbol cache statistics for each program space."), | |
7080 | &maintenanceprintlist); | |
7081 | ||
5e84b7ee SM |
7082 | cmd_list_element *maintenance_flush_symbol_cache_cmd |
7083 | = add_cmd ("symbol-cache", class_maintenance, | |
7084 | maintenance_flush_symbol_cache, | |
7085 | _("Flush the symbol cache for each program space."), | |
7086 | &maintenanceflushlist); | |
7087 | c = add_alias_cmd ("flush-symbol-cache", maintenance_flush_symbol_cache_cmd, | |
50a5f187 AB |
7088 | class_maintenance, 0, &maintenancelist); |
7089 | deprecate_cmd (c, "maintenancelist flush symbol-cache"); | |
f57d2163 | 7090 | |
c90e7d63 SM |
7091 | gdb::observers::executable_changed.attach (symtab_observer_executable_changed, |
7092 | "symtab"); | |
7093 | gdb::observers::new_objfile.attach (symtab_new_objfile_observer, "symtab"); | |
7094 | gdb::observers::free_objfile.attach (symtab_free_objfile_observer, "symtab"); | |
c906108c | 7095 | } |