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Commit | Line | Data |
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c906108c | 1 | /* Symbol table lookup for the GNU debugger, GDB. |
8926118c | 2 | |
3666a048 | 3 | Copyright (C) 1986-2021 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" | |
88987551 | 30 | #include "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 | |
04ea0df1 | 50 | #include "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 | |
b625c770 SM |
334 | call_site * |
335 | compunit_symtab::find_call_site (CORE_ADDR pc) const | |
336 | { | |
337 | if (m_call_site_htab == nullptr) | |
338 | return nullptr; | |
339 | ||
b0b8879e SM |
340 | CORE_ADDR delta |
341 | = this->objfile->section_offsets[COMPUNIT_BLOCK_LINE_SECTION (this)]; | |
342 | CORE_ADDR unrelocated_pc = pc - delta; | |
343 | ||
344 | struct call_site call_site_local (unrelocated_pc, nullptr, nullptr); | |
0dd8295d TV |
345 | void **slot |
346 | = htab_find_slot (m_call_site_htab, &call_site_local, NO_INSERT); | |
b625c770 SM |
347 | if (slot == nullptr) |
348 | return nullptr; | |
349 | ||
350 | return (call_site *) *slot; | |
351 | } | |
352 | ||
353 | /* See symtab.h. */ | |
354 | ||
355 | void | |
356 | compunit_symtab::set_call_site_htab (htab_t call_site_htab) | |
357 | { | |
358 | gdb_assert (m_call_site_htab == nullptr); | |
359 | m_call_site_htab = call_site_htab; | |
360 | } | |
361 | ||
362 | /* See symtab.h. */ | |
363 | ||
43f3e411 DE |
364 | struct symtab * |
365 | compunit_primary_filetab (const struct compunit_symtab *cust) | |
db0fec5c | 366 | { |
43f3e411 | 367 | gdb_assert (COMPUNIT_FILETABS (cust) != NULL); |
db0fec5c | 368 | |
43f3e411 DE |
369 | /* The primary file symtab is the first one in the list. */ |
370 | return COMPUNIT_FILETABS (cust); | |
371 | } | |
372 | ||
373 | /* See symtab.h. */ | |
374 | ||
375 | enum language | |
376 | compunit_language (const struct compunit_symtab *cust) | |
377 | { | |
378 | struct symtab *symtab = compunit_primary_filetab (cust); | |
379 | ||
380 | /* The language of the compunit symtab is the language of its primary | |
381 | source file. */ | |
382 | return SYMTAB_LANGUAGE (symtab); | |
db0fec5c DE |
383 | } |
384 | ||
1ed9f74e PW |
385 | /* See symtab.h. */ |
386 | ||
387 | bool | |
388 | minimal_symbol::data_p () const | |
389 | { | |
390 | return type == mst_data | |
391 | || type == mst_bss | |
392 | || type == mst_abs | |
393 | || type == mst_file_data | |
394 | || type == mst_file_bss; | |
395 | } | |
396 | ||
397 | /* See symtab.h. */ | |
398 | ||
399 | bool | |
400 | minimal_symbol::text_p () const | |
401 | { | |
402 | return type == mst_text | |
403 | || type == mst_text_gnu_ifunc | |
404 | || type == mst_data_gnu_ifunc | |
405 | || type == mst_slot_got_plt | |
406 | || type == mst_solib_trampoline | |
407 | || type == mst_file_text; | |
408 | } | |
409 | ||
4aac40c8 TT |
410 | /* See whether FILENAME matches SEARCH_NAME using the rule that we |
411 | advertise to the user. (The manual's description of linespecs | |
af529f8f JK |
412 | describes what we advertise). Returns true if they match, false |
413 | otherwise. */ | |
4aac40c8 | 414 | |
ececd218 | 415 | bool |
b57a636e | 416 | compare_filenames_for_search (const char *filename, const char *search_name) |
4aac40c8 TT |
417 | { |
418 | int len = strlen (filename); | |
b57a636e | 419 | size_t search_len = strlen (search_name); |
4aac40c8 TT |
420 | |
421 | if (len < search_len) | |
ececd218 | 422 | return false; |
4aac40c8 TT |
423 | |
424 | /* The tail of FILENAME must match. */ | |
425 | if (FILENAME_CMP (filename + len - search_len, search_name) != 0) | |
ececd218 | 426 | return false; |
4aac40c8 TT |
427 | |
428 | /* Either the names must completely match, or the character | |
429 | preceding the trailing SEARCH_NAME segment of FILENAME must be a | |
d84fca2c JK |
430 | directory separator. |
431 | ||
af529f8f JK |
432 | The check !IS_ABSOLUTE_PATH ensures SEARCH_NAME "/dir/file.c" |
433 | cannot match FILENAME "/path//dir/file.c" - as user has requested | |
434 | absolute path. The sama applies for "c:\file.c" possibly | |
435 | incorrectly hypothetically matching "d:\dir\c:\file.c". | |
436 | ||
d84fca2c JK |
437 | The HAS_DRIVE_SPEC purpose is to make FILENAME "c:file.c" |
438 | compatible with SEARCH_NAME "file.c". In such case a compiler had | |
439 | to put the "c:file.c" name into debug info. Such compatibility | |
440 | works only on GDB built for DOS host. */ | |
4aac40c8 | 441 | return (len == search_len |
af529f8f JK |
442 | || (!IS_ABSOLUTE_PATH (search_name) |
443 | && IS_DIR_SEPARATOR (filename[len - search_len - 1])) | |
4aac40c8 TT |
444 | || (HAS_DRIVE_SPEC (filename) |
445 | && STRIP_DRIVE_SPEC (filename) == &filename[len - search_len])); | |
446 | } | |
447 | ||
cce0e923 DE |
448 | /* Same as compare_filenames_for_search, but for glob-style patterns. |
449 | Heads up on the order of the arguments. They match the order of | |
450 | compare_filenames_for_search, but it's the opposite of the order of | |
451 | arguments to gdb_filename_fnmatch. */ | |
452 | ||
ececd218 | 453 | bool |
cce0e923 DE |
454 | compare_glob_filenames_for_search (const char *filename, |
455 | const char *search_name) | |
456 | { | |
457 | /* We rely on the property of glob-style patterns with FNM_FILE_NAME that | |
458 | all /s have to be explicitly specified. */ | |
459 | int file_path_elements = count_path_elements (filename); | |
460 | int search_path_elements = count_path_elements (search_name); | |
461 | ||
462 | if (search_path_elements > file_path_elements) | |
ececd218 | 463 | return false; |
cce0e923 DE |
464 | |
465 | if (IS_ABSOLUTE_PATH (search_name)) | |
466 | { | |
467 | return (search_path_elements == file_path_elements | |
468 | && gdb_filename_fnmatch (search_name, filename, | |
469 | FNM_FILE_NAME | FNM_NOESCAPE) == 0); | |
470 | } | |
471 | ||
472 | { | |
473 | const char *file_to_compare | |
474 | = strip_leading_path_elements (filename, | |
475 | file_path_elements - search_path_elements); | |
476 | ||
477 | return gdb_filename_fnmatch (search_name, file_to_compare, | |
478 | FNM_FILE_NAME | FNM_NOESCAPE) == 0; | |
479 | } | |
480 | } | |
481 | ||
f8eba3c6 TT |
482 | /* Check for a symtab of a specific name by searching some symtabs. |
483 | This is a helper function for callbacks of iterate_over_symtabs. | |
c906108c | 484 | |
b2d23133 DE |
485 | If NAME is not absolute, then REAL_PATH is NULL |
486 | If NAME is absolute, then REAL_PATH is the gdb_realpath form of NAME. | |
487 | ||
14bc53a8 PA |
488 | The return value, NAME, REAL_PATH and CALLBACK are identical to the |
489 | `map_symtabs_matching_filename' method of quick_symbol_functions. | |
f8eba3c6 | 490 | |
43f3e411 DE |
491 | FIRST and AFTER_LAST indicate the range of compunit symtabs to search. |
492 | Each symtab within the specified compunit symtab is also searched. | |
493 | AFTER_LAST is one past the last compunit symtab to search; NULL means to | |
f8eba3c6 TT |
494 | search until the end of the list. */ |
495 | ||
14bc53a8 | 496 | bool |
f8eba3c6 | 497 | iterate_over_some_symtabs (const char *name, |
f8eba3c6 | 498 | const char *real_path, |
43f3e411 | 499 | struct compunit_symtab *first, |
14bc53a8 PA |
500 | struct compunit_symtab *after_last, |
501 | gdb::function_view<bool (symtab *)> callback) | |
c906108c | 502 | { |
43f3e411 | 503 | struct compunit_symtab *cust; |
c011a4f4 | 504 | const char* base_name = lbasename (name); |
1f84b619 | 505 | |
43f3e411 | 506 | for (cust = first; cust != NULL && cust != after_last; cust = cust->next) |
f079a2e5 | 507 | { |
5accd1a0 | 508 | for (symtab *s : compunit_filetabs (cust)) |
a94e8645 | 509 | { |
43f3e411 DE |
510 | if (compare_filenames_for_search (s->filename, name)) |
511 | { | |
14bc53a8 PA |
512 | if (callback (s)) |
513 | return true; | |
43f3e411 DE |
514 | continue; |
515 | } | |
a94e8645 | 516 | |
43f3e411 DE |
517 | /* Before we invoke realpath, which can get expensive when many |
518 | files are involved, do a quick comparison of the basenames. */ | |
519 | if (! basenames_may_differ | |
520 | && FILENAME_CMP (base_name, lbasename (s->filename)) != 0) | |
521 | continue; | |
a94e8645 | 522 | |
43f3e411 | 523 | if (compare_filenames_for_search (symtab_to_fullname (s), name)) |
a94e8645 | 524 | { |
14bc53a8 PA |
525 | if (callback (s)) |
526 | return true; | |
a94e8645 DE |
527 | continue; |
528 | } | |
43f3e411 DE |
529 | |
530 | /* If the user gave us an absolute path, try to find the file in | |
531 | this symtab and use its absolute path. */ | |
532 | if (real_path != NULL) | |
533 | { | |
534 | const char *fullname = symtab_to_fullname (s); | |
535 | ||
536 | gdb_assert (IS_ABSOLUTE_PATH (real_path)); | |
537 | gdb_assert (IS_ABSOLUTE_PATH (name)); | |
7e785608 TV |
538 | gdb::unique_xmalloc_ptr<char> fullname_real_path |
539 | = gdb_realpath (fullname); | |
540 | fullname = fullname_real_path.get (); | |
43f3e411 DE |
541 | if (FILENAME_CMP (real_path, fullname) == 0) |
542 | { | |
14bc53a8 PA |
543 | if (callback (s)) |
544 | return true; | |
43f3e411 DE |
545 | continue; |
546 | } | |
547 | } | |
a94e8645 | 548 | } |
f8eba3c6 | 549 | } |
58d370e0 | 550 | |
14bc53a8 | 551 | return false; |
f8eba3c6 TT |
552 | } |
553 | ||
554 | /* Check for a symtab of a specific name; first in symtabs, then in | |
555 | psymtabs. *If* there is no '/' in the name, a match after a '/' | |
556 | in the symtab filename will also work. | |
557 | ||
14bc53a8 PA |
558 | Calls CALLBACK with each symtab that is found. If CALLBACK returns |
559 | true, the search stops. */ | |
f8eba3c6 TT |
560 | |
561 | void | |
562 | iterate_over_symtabs (const char *name, | |
14bc53a8 | 563 | gdb::function_view<bool (symtab *)> callback) |
f8eba3c6 | 564 | { |
14bc53a8 | 565 | gdb::unique_xmalloc_ptr<char> real_path; |
f8eba3c6 TT |
566 | |
567 | /* Here we are interested in canonicalizing an absolute path, not | |
568 | absolutizing a relative path. */ | |
569 | if (IS_ABSOLUTE_PATH (name)) | |
570 | { | |
14278e1f | 571 | real_path = gdb_realpath (name); |
14bc53a8 | 572 | gdb_assert (IS_ABSOLUTE_PATH (real_path.get ())); |
f8eba3c6 TT |
573 | } |
574 | ||
2030c079 | 575 | for (objfile *objfile : current_program_space->objfiles ()) |
14bc53a8 PA |
576 | { |
577 | if (iterate_over_some_symtabs (name, real_path.get (), | |
578 | objfile->compunit_symtabs, NULL, | |
579 | callback)) | |
f8eba3c6 | 580 | return; |
14bc53a8 | 581 | } |
f8eba3c6 | 582 | |
c906108c SS |
583 | /* Same search rules as above apply here, but now we look thru the |
584 | psymtabs. */ | |
585 | ||
2030c079 | 586 | for (objfile *objfile : current_program_space->objfiles ()) |
14bc53a8 | 587 | { |
4d080b46 TT |
588 | if (objfile->map_symtabs_matching_filename (name, real_path.get (), |
589 | callback)) | |
f8eba3c6 | 590 | return; |
14bc53a8 | 591 | } |
c906108c | 592 | } |
f8eba3c6 TT |
593 | |
594 | /* A wrapper for iterate_over_symtabs that returns the first matching | |
595 | symtab, or NULL. */ | |
596 | ||
597 | struct symtab * | |
598 | lookup_symtab (const char *name) | |
599 | { | |
600 | struct symtab *result = NULL; | |
601 | ||
14bc53a8 PA |
602 | iterate_over_symtabs (name, [&] (symtab *symtab) |
603 | { | |
604 | result = symtab; | |
605 | return true; | |
606 | }); | |
607 | ||
f8eba3c6 TT |
608 | return result; |
609 | } | |
610 | ||
c906108c SS |
611 | \f |
612 | /* Mangle a GDB method stub type. This actually reassembles the pieces of the | |
613 | full method name, which consist of the class name (from T), the unadorned | |
614 | method name from METHOD_ID, and the signature for the specific overload, | |
c378eb4e | 615 | specified by SIGNATURE_ID. Note that this function is g++ specific. */ |
c906108c SS |
616 | |
617 | char * | |
fba45db2 | 618 | gdb_mangle_name (struct type *type, int method_id, int signature_id) |
c906108c SS |
619 | { |
620 | int mangled_name_len; | |
621 | char *mangled_name; | |
622 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
623 | struct fn_field *method = &f[signature_id]; | |
0d5cff50 | 624 | const char *field_name = TYPE_FN_FIELDLIST_NAME (type, method_id); |
1d06ead6 | 625 | const char *physname = TYPE_FN_FIELD_PHYSNAME (f, signature_id); |
7d93a1e0 | 626 | const char *newname = type->name (); |
c906108c SS |
627 | |
628 | /* Does the form of physname indicate that it is the full mangled name | |
629 | of a constructor (not just the args)? */ | |
630 | int is_full_physname_constructor; | |
631 | ||
632 | int is_constructor; | |
015a42b4 | 633 | int is_destructor = is_destructor_name (physname); |
c906108c | 634 | /* Need a new type prefix. */ |
e6a959d6 PA |
635 | const char *const_prefix = method->is_const ? "C" : ""; |
636 | const char *volatile_prefix = method->is_volatile ? "V" : ""; | |
c906108c SS |
637 | char buf[20]; |
638 | int len = (newname == NULL ? 0 : strlen (newname)); | |
639 | ||
43630227 PS |
640 | /* Nothing to do if physname already contains a fully mangled v3 abi name |
641 | or an operator name. */ | |
642 | if ((physname[0] == '_' && physname[1] == 'Z') | |
643 | || is_operator_name (field_name)) | |
235d1e03 EZ |
644 | return xstrdup (physname); |
645 | ||
015a42b4 | 646 | is_full_physname_constructor = is_constructor_name (physname); |
c906108c | 647 | |
3e43a32a MS |
648 | is_constructor = is_full_physname_constructor |
649 | || (newname && strcmp (field_name, newname) == 0); | |
c906108c SS |
650 | |
651 | if (!is_destructor) | |
61012eef | 652 | is_destructor = (startswith (physname, "__dt")); |
c906108c SS |
653 | |
654 | if (is_destructor || is_full_physname_constructor) | |
655 | { | |
c5aa993b JM |
656 | mangled_name = (char *) xmalloc (strlen (physname) + 1); |
657 | strcpy (mangled_name, physname); | |
c906108c SS |
658 | return mangled_name; |
659 | } | |
660 | ||
661 | if (len == 0) | |
662 | { | |
8c042590 | 663 | xsnprintf (buf, sizeof (buf), "__%s%s", const_prefix, volatile_prefix); |
c906108c SS |
664 | } |
665 | else if (physname[0] == 't' || physname[0] == 'Q') | |
666 | { | |
667 | /* The physname for template and qualified methods already includes | |
dda83cd7 | 668 | the class name. */ |
8c042590 | 669 | xsnprintf (buf, sizeof (buf), "__%s%s", const_prefix, volatile_prefix); |
c906108c SS |
670 | newname = NULL; |
671 | len = 0; | |
672 | } | |
673 | else | |
674 | { | |
8c042590 PM |
675 | xsnprintf (buf, sizeof (buf), "__%s%s%d", const_prefix, |
676 | volatile_prefix, len); | |
c906108c SS |
677 | } |
678 | mangled_name_len = ((is_constructor ? 0 : strlen (field_name)) | |
235d1e03 | 679 | + strlen (buf) + len + strlen (physname) + 1); |
c906108c | 680 | |
433759f7 MS |
681 | mangled_name = (char *) xmalloc (mangled_name_len); |
682 | if (is_constructor) | |
683 | mangled_name[0] = '\0'; | |
684 | else | |
685 | strcpy (mangled_name, field_name); | |
686 | ||
c906108c SS |
687 | strcat (mangled_name, buf); |
688 | /* If the class doesn't have a name, i.e. newname NULL, then we just | |
689 | mangle it using 0 for the length of the class. Thus it gets mangled | |
c378eb4e | 690 | as something starting with `::' rather than `classname::'. */ |
c906108c SS |
691 | if (newname != NULL) |
692 | strcat (mangled_name, newname); | |
693 | ||
694 | strcat (mangled_name, physname); | |
695 | return (mangled_name); | |
696 | } | |
12af6855 | 697 | |
ff985671 | 698 | /* See symtab.h. */ |
eca864fe | 699 | |
b250c185 | 700 | void |
ff985671 TT |
701 | general_symbol_info::set_demangled_name (const char *name, |
702 | struct obstack *obstack) | |
b250c185 | 703 | { |
ff985671 | 704 | if (language () == language_ada) |
f85f34ed TT |
705 | { |
706 | if (name == NULL) | |
707 | { | |
ff985671 TT |
708 | ada_mangled = 0; |
709 | language_specific.obstack = obstack; | |
f85f34ed TT |
710 | } |
711 | else | |
712 | { | |
ff985671 TT |
713 | ada_mangled = 1; |
714 | language_specific.demangled_name = name; | |
f85f34ed TT |
715 | } |
716 | } | |
29df156d | 717 | else |
ff985671 | 718 | language_specific.demangled_name = name; |
b250c185 SW |
719 | } |
720 | ||
12af6855 | 721 | \f |
89aad1f9 | 722 | /* Initialize the language dependent portion of a symbol |
c378eb4e | 723 | depending upon the language for the symbol. */ |
eca864fe | 724 | |
89aad1f9 | 725 | void |
d3ecddab CB |
726 | general_symbol_info::set_language (enum language language, |
727 | struct obstack *obstack) | |
89aad1f9 | 728 | { |
d3ecddab | 729 | m_language = language; |
c1b5c1eb CB |
730 | if (language == language_cplus |
731 | || language == language_d | |
732 | || language == language_go | |
733 | || language == language_objc | |
734 | || language == language_fortran) | |
89aad1f9 | 735 | { |
ff985671 | 736 | set_demangled_name (NULL, obstack); |
f85f34ed | 737 | } |
c1b5c1eb | 738 | else if (language == language_ada) |
f85f34ed | 739 | { |
d3ecddab CB |
740 | gdb_assert (ada_mangled == 0); |
741 | language_specific.obstack = obstack; | |
89aad1f9 | 742 | } |
89aad1f9 EZ |
743 | else |
744 | { | |
d3ecddab | 745 | memset (&language_specific, 0, sizeof (language_specific)); |
89aad1f9 EZ |
746 | } |
747 | } | |
748 | ||
2de7ced7 DJ |
749 | /* Functions to initialize a symbol's mangled name. */ |
750 | ||
04a679b8 TT |
751 | /* Objects of this type are stored in the demangled name hash table. */ |
752 | struct demangled_name_entry | |
753 | { | |
3a494279 CB |
754 | demangled_name_entry (gdb::string_view mangled_name) |
755 | : mangled (mangled_name) {} | |
756 | ||
7bb43059 | 757 | gdb::string_view mangled; |
403772ef | 758 | enum language language; |
5396ae17 | 759 | gdb::unique_xmalloc_ptr<char> demangled; |
04a679b8 TT |
760 | }; |
761 | ||
762 | /* Hash function for the demangled name hash. */ | |
eca864fe | 763 | |
04a679b8 TT |
764 | static hashval_t |
765 | hash_demangled_name_entry (const void *data) | |
766 | { | |
19ba03f4 SM |
767 | const struct demangled_name_entry *e |
768 | = (const struct demangled_name_entry *) data; | |
433759f7 | 769 | |
1a6ff1a9 | 770 | return fast_hash (e->mangled.data (), e->mangled.length ()); |
04a679b8 TT |
771 | } |
772 | ||
773 | /* Equality function for the demangled name hash. */ | |
eca864fe | 774 | |
04a679b8 TT |
775 | static int |
776 | eq_demangled_name_entry (const void *a, const void *b) | |
777 | { | |
19ba03f4 SM |
778 | const struct demangled_name_entry *da |
779 | = (const struct demangled_name_entry *) a; | |
780 | const struct demangled_name_entry *db | |
781 | = (const struct demangled_name_entry *) b; | |
433759f7 | 782 | |
7bb43059 | 783 | return da->mangled == db->mangled; |
04a679b8 TT |
784 | } |
785 | ||
3a494279 CB |
786 | static void |
787 | free_demangled_name_entry (void *data) | |
788 | { | |
789 | struct demangled_name_entry *e | |
790 | = (struct demangled_name_entry *) data; | |
791 | ||
792 | e->~demangled_name_entry(); | |
793 | } | |
794 | ||
2de7ced7 DJ |
795 | /* Create the hash table used for demangled names. Each hash entry is |
796 | a pair of strings; one for the mangled name and one for the demangled | |
797 | name. The entry is hashed via just the mangled name. */ | |
798 | ||
799 | static void | |
0f14768a | 800 | create_demangled_names_hash (struct objfile_per_bfd_storage *per_bfd) |
2de7ced7 DJ |
801 | { |
802 | /* Choose 256 as the starting size of the hash table, somewhat arbitrarily. | |
9af17804 | 803 | The hash table code will round this up to the next prime number. |
2de7ced7 | 804 | Choosing a much larger table size wastes memory, and saves only about |
f8bab2d6 CB |
805 | 1% in symbol reading. However, if the minsym count is already |
806 | initialized (e.g. because symbol name setting was deferred to | |
807 | a background thread) we can initialize the hashtable with a count | |
808 | based on that, because we will almost certainly have at least that | |
809 | many entries. If we have a nonzero number but less than 256, | |
810 | we still stay with 256 to have some space for psymbols, etc. */ | |
811 | ||
812 | /* htab will expand the table when it is 3/4th full, so we account for that | |
813 | here. +2 to round up. */ | |
814 | int minsym_based_count = (per_bfd->minimal_symbol_count + 2) / 3 * 4; | |
815 | int count = std::max (per_bfd->minimal_symbol_count, minsym_based_count); | |
2de7ced7 | 816 | |
db92718b | 817 | per_bfd->demangled_names_hash.reset (htab_create_alloc |
f8bab2d6 | 818 | (count, hash_demangled_name_entry, eq_demangled_name_entry, |
3a494279 | 819 | free_demangled_name_entry, xcalloc, xfree)); |
2de7ced7 | 820 | } |
12af6855 | 821 | |
d55c9a68 | 822 | /* See symtab.h */ |
12af6855 | 823 | |
d55c9a68 | 824 | char * |
2de7ced7 DJ |
825 | symbol_find_demangled_name (struct general_symbol_info *gsymbol, |
826 | const char *mangled) | |
12af6855 | 827 | { |
12af6855 | 828 | char *demangled = NULL; |
8b302db8 | 829 | int i; |
12af6855 | 830 | |
c1b5c1eb CB |
831 | if (gsymbol->language () == language_unknown) |
832 | gsymbol->m_language = language_auto; | |
1bae87b9 | 833 | |
c1b5c1eb | 834 | if (gsymbol->language () != language_auto) |
1bae87b9 | 835 | { |
c1b5c1eb | 836 | const struct language_defn *lang = language_def (gsymbol->language ()); |
8b302db8 | 837 | |
6f827019 | 838 | lang->sniff_from_mangled_name (mangled, &demangled); |
8b302db8 | 839 | return demangled; |
6aecb9c2 | 840 | } |
8b302db8 TT |
841 | |
842 | for (i = language_unknown; i < nr_languages; ++i) | |
a766d390 | 843 | { |
8b302db8 TT |
844 | enum language l = (enum language) i; |
845 | const struct language_defn *lang = language_def (l); | |
846 | ||
6f827019 | 847 | if (lang->sniff_from_mangled_name (mangled, &demangled)) |
a766d390 | 848 | { |
c1b5c1eb | 849 | gsymbol->m_language = l; |
a766d390 DE |
850 | return demangled; |
851 | } | |
852 | } | |
853 | ||
2de7ced7 DJ |
854 | return NULL; |
855 | } | |
856 | ||
980cae7a | 857 | /* Set both the mangled and demangled (if any) names for GSYMBOL based |
04a679b8 TT |
858 | on LINKAGE_NAME and LEN. Ordinarily, NAME is copied onto the |
859 | objfile's obstack; but if COPY_NAME is 0 and if NAME is | |
860 | NUL-terminated, then this function assumes that NAME is already | |
861 | correctly saved (either permanently or with a lifetime tied to the | |
862 | objfile), and it will not be copied. | |
863 | ||
864 | The hash table corresponding to OBJFILE is used, and the memory | |
84a1243b | 865 | comes from the per-BFD storage_obstack. LINKAGE_NAME is copied, |
04a679b8 | 866 | so the pointer can be discarded after calling this function. */ |
2de7ced7 DJ |
867 | |
868 | void | |
4d4eaa30 CB |
869 | general_symbol_info::compute_and_set_names (gdb::string_view linkage_name, |
870 | bool copy_name, | |
871 | objfile_per_bfd_storage *per_bfd, | |
872 | gdb::optional<hashval_t> hash) | |
2de7ced7 | 873 | { |
04a679b8 | 874 | struct demangled_name_entry **slot; |
2de7ced7 | 875 | |
4d4eaa30 | 876 | if (language () == language_ada) |
b06ead72 JB |
877 | { |
878 | /* In Ada, we do the symbol lookups using the mangled name, so | |
dda83cd7 | 879 | we can save some space by not storing the demangled name. */ |
92174eea | 880 | if (!copy_name) |
4d4eaa30 | 881 | m_name = linkage_name.data (); |
04a679b8 | 882 | else |
869d8950 TT |
883 | m_name = obstack_strndup (&per_bfd->storage_obstack, |
884 | linkage_name.data (), | |
885 | linkage_name.length ()); | |
ff985671 | 886 | set_demangled_name (NULL, &per_bfd->storage_obstack); |
b06ead72 JB |
887 | |
888 | return; | |
889 | } | |
890 | ||
84a1243b | 891 | if (per_bfd->demangled_names_hash == NULL) |
0f14768a | 892 | create_demangled_names_hash (per_bfd); |
04a679b8 | 893 | |
31edb802 | 894 | struct demangled_name_entry entry (linkage_name); |
e76b2246 CB |
895 | if (!hash.has_value ()) |
896 | hash = hash_demangled_name_entry (&entry); | |
04a679b8 | 897 | slot = ((struct demangled_name_entry **) |
dda83cd7 | 898 | htab_find_slot_with_hash (per_bfd->demangled_names_hash.get (), |
e76b2246 | 899 | &entry, *hash, INSERT)); |
2de7ced7 | 900 | |
57d75002 CB |
901 | /* The const_cast is safe because the only reason it is already |
902 | initialized is if we purposefully set it from a background | |
903 | thread to avoid doing the work here. However, it is still | |
904 | allocated from the heap and needs to be freed by us, just | |
905 | like if we called symbol_find_demangled_name here. If this is | |
906 | nullptr, we call symbol_find_demangled_name below, but we put | |
907 | this smart pointer here to be sure that we don't leak this name. */ | |
908 | gdb::unique_xmalloc_ptr<char> demangled_name | |
909 | (const_cast<char *> (language_specific.demangled_name)); | |
910 | ||
2de7ced7 | 911 | /* If this name is not in the hash table, add it. */ |
a766d390 DE |
912 | if (*slot == NULL |
913 | /* A C version of the symbol may have already snuck into the table. | |
914 | This happens to, e.g., main.init (__go_init_main). Cope. */ | |
4d4eaa30 | 915 | || (language () == language_go && (*slot)->demangled == nullptr)) |
2de7ced7 | 916 | { |
0c921b21 | 917 | /* A 0-terminated copy of the linkage name. Callers must set COPY_NAME |
dda83cd7 SM |
918 | to true if the string might not be nullterminated. We have to make |
919 | this copy because demangling needs a nullterminated string. */ | |
31edb802 | 920 | gdb::string_view linkage_name_copy; |
0c921b21 CB |
921 | if (copy_name) |
922 | { | |
31edb802 CB |
923 | char *alloc_name = (char *) alloca (linkage_name.length () + 1); |
924 | memcpy (alloc_name, linkage_name.data (), linkage_name.length ()); | |
925 | alloc_name[linkage_name.length ()] = '\0'; | |
0c921b21 | 926 | |
31edb802 CB |
927 | linkage_name_copy = gdb::string_view (alloc_name, |
928 | linkage_name.length ()); | |
0c921b21 CB |
929 | } |
930 | else | |
931 | linkage_name_copy = linkage_name; | |
932 | ||
57d75002 CB |
933 | if (demangled_name.get () == nullptr) |
934 | demangled_name.reset | |
935 | (symbol_find_demangled_name (this, linkage_name_copy.data ())); | |
2de7ced7 | 936 | |
04a679b8 | 937 | /* Suppose we have demangled_name==NULL, copy_name==0, and |
9c37b5ae | 938 | linkage_name_copy==linkage_name. In this case, we already have the |
04a679b8 TT |
939 | mangled name saved, and we don't have a demangled name. So, |
940 | you might think we could save a little space by not recording | |
941 | this in the hash table at all. | |
5396ae17 | 942 | |
04a679b8 TT |
943 | It turns out that it is actually important to still save such |
944 | an entry in the hash table, because storing this name gives | |
705b5767 | 945 | us better bcache hit rates for partial symbols. */ |
0c921b21 | 946 | if (!copy_name) |
04a679b8 | 947 | { |
224c3ddb SM |
948 | *slot |
949 | = ((struct demangled_name_entry *) | |
950 | obstack_alloc (&per_bfd->storage_obstack, | |
5396ae17 | 951 | sizeof (demangled_name_entry))); |
31edb802 | 952 | new (*slot) demangled_name_entry (linkage_name); |
04a679b8 TT |
953 | } |
954 | else | |
955 | { | |
956 | /* If we must copy the mangled name, put it directly after | |
5396ae17 | 957 | the struct so we can have a single allocation. */ |
224c3ddb SM |
958 | *slot |
959 | = ((struct demangled_name_entry *) | |
960 | obstack_alloc (&per_bfd->storage_obstack, | |
31edb802 CB |
961 | sizeof (demangled_name_entry) |
962 | + linkage_name.length () + 1)); | |
5396ae17 | 963 | char *mangled_ptr = reinterpret_cast<char *> (*slot + 1); |
31edb802 CB |
964 | memcpy (mangled_ptr, linkage_name.data (), linkage_name.length ()); |
965 | mangled_ptr [linkage_name.length ()] = '\0'; | |
3a494279 | 966 | new (*slot) demangled_name_entry |
31edb802 | 967 | (gdb::string_view (mangled_ptr, linkage_name.length ())); |
04a679b8 | 968 | } |
d55c9a68 | 969 | (*slot)->demangled = std::move (demangled_name); |
4d4eaa30 | 970 | (*slot)->language = language (); |
2de7ced7 | 971 | } |
4d4eaa30 CB |
972 | else if (language () == language_unknown || language () == language_auto) |
973 | m_language = (*slot)->language; | |
2de7ced7 | 974 | |
4d4eaa30 | 975 | m_name = (*slot)->mangled.data (); |
ff985671 | 976 | set_demangled_name ((*slot)->demangled.get (), &per_bfd->storage_obstack); |
2de7ced7 DJ |
977 | } |
978 | ||
c9d95fa3 | 979 | /* See symtab.h. */ |
22abf04a | 980 | |
0d5cff50 | 981 | const char * |
c9d95fa3 | 982 | general_symbol_info::natural_name () const |
22abf04a | 983 | { |
c1b5c1eb | 984 | switch (language ()) |
22abf04a | 985 | { |
1f8173e6 | 986 | case language_cplus: |
6aecb9c2 | 987 | case language_d: |
a766d390 | 988 | case language_go: |
1f8173e6 | 989 | case language_objc: |
f55ee35c | 990 | case language_fortran: |
8c87a452 | 991 | case language_rust: |
7151c1af TT |
992 | if (language_specific.demangled_name != nullptr) |
993 | return language_specific.demangled_name; | |
1f8173e6 PH |
994 | break; |
995 | case language_ada: | |
c9d95fa3 | 996 | return ada_decode_symbol (this); |
1f8173e6 PH |
997 | default: |
998 | break; | |
22abf04a | 999 | } |
4d4eaa30 | 1000 | return linkage_name (); |
22abf04a DC |
1001 | } |
1002 | ||
c9d95fa3 | 1003 | /* See symtab.h. */ |
eca864fe | 1004 | |
0d5cff50 | 1005 | const char * |
c9d95fa3 | 1006 | general_symbol_info::demangled_name () const |
9cc0d196 | 1007 | { |
c6e5ee5e SDJ |
1008 | const char *dem_name = NULL; |
1009 | ||
c1b5c1eb | 1010 | switch (language ()) |
1f8173e6 PH |
1011 | { |
1012 | case language_cplus: | |
6aecb9c2 | 1013 | case language_d: |
a766d390 | 1014 | case language_go: |
1f8173e6 | 1015 | case language_objc: |
f55ee35c | 1016 | case language_fortran: |
8c87a452 | 1017 | case language_rust: |
7151c1af | 1018 | dem_name = language_specific.demangled_name; |
1f8173e6 PH |
1019 | break; |
1020 | case language_ada: | |
c9d95fa3 | 1021 | dem_name = ada_decode_symbol (this); |
1f8173e6 PH |
1022 | break; |
1023 | default: | |
1024 | break; | |
1025 | } | |
c6e5ee5e | 1026 | return dem_name; |
9cc0d196 | 1027 | } |
fe39c653 | 1028 | |
c9d95fa3 | 1029 | /* See symtab.h. */ |
eca864fe | 1030 | |
0d5cff50 | 1031 | const char * |
c9d95fa3 | 1032 | general_symbol_info::search_name () const |
fc062ac6 | 1033 | { |
c1b5c1eb | 1034 | if (language () == language_ada) |
4d4eaa30 | 1035 | return linkage_name (); |
1f8173e6 | 1036 | else |
c9d95fa3 | 1037 | return natural_name (); |
4725b721 | 1038 | } |
b5ec771e PA |
1039 | |
1040 | /* See symtab.h. */ | |
1041 | ||
ebbc3a7d AB |
1042 | struct obj_section * |
1043 | general_symbol_info::obj_section (const struct objfile *objfile) const | |
1044 | { | |
a52d653e AB |
1045 | if (section_index () >= 0) |
1046 | return &objfile->sections[section_index ()]; | |
ebbc3a7d AB |
1047 | return nullptr; |
1048 | } | |
1049 | ||
1050 | /* See symtab.h. */ | |
1051 | ||
b5ec771e PA |
1052 | bool |
1053 | symbol_matches_search_name (const struct general_symbol_info *gsymbol, | |
1054 | const lookup_name_info &name) | |
1055 | { | |
1056 | symbol_name_matcher_ftype *name_match | |
c9debfb9 | 1057 | = language_def (gsymbol->language ())->get_symbol_name_matcher (name); |
c9d95fa3 | 1058 | return name_match (gsymbol->search_name (), name, NULL); |
b5ec771e PA |
1059 | } |
1060 | ||
c906108c SS |
1061 | \f |
1062 | ||
ececd218 | 1063 | /* Return true if the two sections are the same, or if they could |
94277a38 DJ |
1064 | plausibly be copies of each other, one in an original object |
1065 | file and another in a separated debug file. */ | |
1066 | ||
ececd218 | 1067 | bool |
714835d5 UW |
1068 | matching_obj_sections (struct obj_section *obj_first, |
1069 | struct obj_section *obj_second) | |
94277a38 | 1070 | { |
714835d5 UW |
1071 | asection *first = obj_first? obj_first->the_bfd_section : NULL; |
1072 | asection *second = obj_second? obj_second->the_bfd_section : NULL; | |
94277a38 DJ |
1073 | |
1074 | /* If they're the same section, then they match. */ | |
1075 | if (first == second) | |
ececd218 | 1076 | return true; |
94277a38 DJ |
1077 | |
1078 | /* If either is NULL, give up. */ | |
1079 | if (first == NULL || second == NULL) | |
ececd218 | 1080 | return false; |
94277a38 DJ |
1081 | |
1082 | /* This doesn't apply to absolute symbols. */ | |
1083 | if (first->owner == NULL || second->owner == NULL) | |
ececd218 | 1084 | return false; |
94277a38 DJ |
1085 | |
1086 | /* If they're in the same object file, they must be different sections. */ | |
1087 | if (first->owner == second->owner) | |
ececd218 | 1088 | return false; |
94277a38 DJ |
1089 | |
1090 | /* Check whether the two sections are potentially corresponding. They must | |
1091 | have the same size, address, and name. We can't compare section indexes, | |
1092 | which would be more reliable, because some sections may have been | |
1093 | stripped. */ | |
fd361982 | 1094 | if (bfd_section_size (first) != bfd_section_size (second)) |
ececd218 | 1095 | return false; |
94277a38 | 1096 | |
818f79f6 | 1097 | /* In-memory addresses may start at a different offset, relativize them. */ |
fd361982 AM |
1098 | if (bfd_section_vma (first) - bfd_get_start_address (first->owner) |
1099 | != bfd_section_vma (second) - bfd_get_start_address (second->owner)) | |
ececd218 | 1100 | return false; |
94277a38 | 1101 | |
fd361982 AM |
1102 | if (bfd_section_name (first) == NULL |
1103 | || bfd_section_name (second) == NULL | |
1104 | || strcmp (bfd_section_name (first), bfd_section_name (second)) != 0) | |
ececd218 | 1105 | return false; |
94277a38 DJ |
1106 | |
1107 | /* Otherwise check that they are in corresponding objfiles. */ | |
1108 | ||
9d7c67bf | 1109 | struct objfile *obj = NULL; |
2030c079 | 1110 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
1111 | if (objfile->obfd == first->owner) |
1112 | { | |
1113 | obj = objfile; | |
1114 | break; | |
1115 | } | |
94277a38 DJ |
1116 | gdb_assert (obj != NULL); |
1117 | ||
1118 | if (obj->separate_debug_objfile != NULL | |
1119 | && obj->separate_debug_objfile->obfd == second->owner) | |
ececd218 | 1120 | return true; |
94277a38 DJ |
1121 | if (obj->separate_debug_objfile_backlink != NULL |
1122 | && obj->separate_debug_objfile_backlink->obfd == second->owner) | |
ececd218 | 1123 | return true; |
94277a38 | 1124 | |
ececd218 | 1125 | return false; |
94277a38 | 1126 | } |
c5aa993b | 1127 | |
2097ae25 DE |
1128 | /* See symtab.h. */ |
1129 | ||
1130 | void | |
1131 | expand_symtab_containing_pc (CORE_ADDR pc, struct obj_section *section) | |
c906108c | 1132 | { |
77e371c0 | 1133 | struct bound_minimal_symbol msymbol; |
8a48e967 DJ |
1134 | |
1135 | /* If we know that this is not a text address, return failure. This is | |
1136 | necessary because we loop based on texthigh and textlow, which do | |
1137 | not include the data ranges. */ | |
77e371c0 | 1138 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); |
1ed9f74e | 1139 | if (msymbol.minsym && msymbol.minsym->data_p ()) |
2097ae25 | 1140 | return; |
c906108c | 1141 | |
2030c079 | 1142 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 | 1143 | { |
4d080b46 TT |
1144 | struct compunit_symtab *cust |
1145 | = objfile->find_pc_sect_compunit_symtab (msymbol, pc, section, 0); | |
aed57c53 TT |
1146 | if (cust) |
1147 | return; | |
1148 | } | |
c906108c | 1149 | } |
c906108c | 1150 | \f |
f57d2163 DE |
1151 | /* Hash function for the symbol cache. */ |
1152 | ||
1153 | static unsigned int | |
1154 | hash_symbol_entry (const struct objfile *objfile_context, | |
1155 | const char *name, domain_enum domain) | |
1156 | { | |
1157 | unsigned int hash = (uintptr_t) objfile_context; | |
1158 | ||
1159 | if (name != NULL) | |
1160 | hash += htab_hash_string (name); | |
1161 | ||
2c26b84f DE |
1162 | /* Because of symbol_matches_domain we need VAR_DOMAIN and STRUCT_DOMAIN |
1163 | to map to the same slot. */ | |
1164 | if (domain == STRUCT_DOMAIN) | |
1165 | hash += VAR_DOMAIN * 7; | |
1166 | else | |
1167 | hash += domain * 7; | |
f57d2163 DE |
1168 | |
1169 | return hash; | |
1170 | } | |
1171 | ||
1172 | /* Equality function for the symbol cache. */ | |
1173 | ||
1174 | static int | |
1175 | eq_symbol_entry (const struct symbol_cache_slot *slot, | |
1176 | const struct objfile *objfile_context, | |
1177 | const char *name, domain_enum domain) | |
1178 | { | |
1179 | const char *slot_name; | |
1180 | domain_enum slot_domain; | |
1181 | ||
1182 | if (slot->state == SYMBOL_SLOT_UNUSED) | |
1183 | return 0; | |
1184 | ||
1185 | if (slot->objfile_context != objfile_context) | |
1186 | return 0; | |
1187 | ||
1188 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
1189 | { | |
1190 | slot_name = slot->value.not_found.name; | |
1191 | slot_domain = slot->value.not_found.domain; | |
1192 | } | |
1193 | else | |
1194 | { | |
987012b8 | 1195 | slot_name = slot->value.found.symbol->search_name (); |
d12307c1 | 1196 | slot_domain = SYMBOL_DOMAIN (slot->value.found.symbol); |
f57d2163 DE |
1197 | } |
1198 | ||
1199 | /* NULL names match. */ | |
1200 | if (slot_name == NULL && name == NULL) | |
1201 | { | |
1202 | /* But there's no point in calling symbol_matches_domain in the | |
1203 | SYMBOL_SLOT_FOUND case. */ | |
1204 | if (slot_domain != domain) | |
1205 | return 0; | |
1206 | } | |
1207 | else if (slot_name != NULL && name != NULL) | |
1208 | { | |
b5ec771e PA |
1209 | /* It's important that we use the same comparison that was done |
1210 | the first time through. If the slot records a found symbol, | |
1211 | then this means using the symbol name comparison function of | |
987012b8 | 1212 | the symbol's language with symbol->search_name (). See |
b5ec771e PA |
1213 | dictionary.c. It also means using symbol_matches_domain for |
1214 | found symbols. See block.c. | |
f57d2163 DE |
1215 | |
1216 | If the slot records a not-found symbol, then require a precise match. | |
1217 | We could still be lax with whitespace like strcmp_iw though. */ | |
1218 | ||
1219 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
1220 | { | |
1221 | if (strcmp (slot_name, name) != 0) | |
1222 | return 0; | |
1223 | if (slot_domain != domain) | |
1224 | return 0; | |
1225 | } | |
1226 | else | |
1227 | { | |
d12307c1 | 1228 | struct symbol *sym = slot->value.found.symbol; |
b5ec771e | 1229 | lookup_name_info lookup_name (name, symbol_name_match_type::FULL); |
f57d2163 | 1230 | |
b5ec771e | 1231 | if (!SYMBOL_MATCHES_SEARCH_NAME (sym, lookup_name)) |
f57d2163 | 1232 | return 0; |
b5ec771e | 1233 | |
c1b5c1eb | 1234 | if (!symbol_matches_domain (sym->language (), slot_domain, domain)) |
f57d2163 DE |
1235 | return 0; |
1236 | } | |
1237 | } | |
1238 | else | |
1239 | { | |
1240 | /* Only one name is NULL. */ | |
1241 | return 0; | |
1242 | } | |
1243 | ||
1244 | return 1; | |
1245 | } | |
1246 | ||
1247 | /* Given a cache of size SIZE, return the size of the struct (with variable | |
1248 | length array) in bytes. */ | |
1249 | ||
1250 | static size_t | |
1251 | symbol_cache_byte_size (unsigned int size) | |
1252 | { | |
1253 | return (sizeof (struct block_symbol_cache) | |
1254 | + ((size - 1) * sizeof (struct symbol_cache_slot))); | |
1255 | } | |
1256 | ||
1257 | /* Resize CACHE. */ | |
1258 | ||
1259 | static void | |
1260 | resize_symbol_cache (struct symbol_cache *cache, unsigned int new_size) | |
1261 | { | |
1262 | /* If there's no change in size, don't do anything. | |
1263 | All caches have the same size, so we can just compare with the size | |
1264 | of the global symbols cache. */ | |
1265 | if ((cache->global_symbols != NULL | |
1266 | && cache->global_symbols->size == new_size) | |
1267 | || (cache->global_symbols == NULL | |
1268 | && new_size == 0)) | |
1269 | return; | |
1270 | ||
82f910ea PW |
1271 | destroy_block_symbol_cache (cache->global_symbols); |
1272 | destroy_block_symbol_cache (cache->static_symbols); | |
f57d2163 DE |
1273 | |
1274 | if (new_size == 0) | |
1275 | { | |
1276 | cache->global_symbols = NULL; | |
1277 | cache->static_symbols = NULL; | |
1278 | } | |
1279 | else | |
1280 | { | |
1281 | size_t total_size = symbol_cache_byte_size (new_size); | |
1282 | ||
224c3ddb SM |
1283 | cache->global_symbols |
1284 | = (struct block_symbol_cache *) xcalloc (1, total_size); | |
1285 | cache->static_symbols | |
1286 | = (struct block_symbol_cache *) xcalloc (1, total_size); | |
f57d2163 DE |
1287 | cache->global_symbols->size = new_size; |
1288 | cache->static_symbols->size = new_size; | |
1289 | } | |
1290 | } | |
1291 | ||
f57d2163 DE |
1292 | /* Return the symbol cache of PSPACE. |
1293 | Create one if it doesn't exist yet. */ | |
1294 | ||
1295 | static struct symbol_cache * | |
1296 | get_symbol_cache (struct program_space *pspace) | |
1297 | { | |
3017b94d | 1298 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 DE |
1299 | |
1300 | if (cache == NULL) | |
1301 | { | |
3017b94d TT |
1302 | cache = symbol_cache_key.emplace (pspace); |
1303 | resize_symbol_cache (cache, symbol_cache_size); | |
f57d2163 DE |
1304 | } |
1305 | ||
1306 | return cache; | |
1307 | } | |
1308 | ||
f57d2163 DE |
1309 | /* Set the size of the symbol cache in all program spaces. */ |
1310 | ||
1311 | static void | |
1312 | set_symbol_cache_size (unsigned int new_size) | |
1313 | { | |
94c93c35 | 1314 | for (struct program_space *pspace : program_spaces) |
f57d2163 | 1315 | { |
3017b94d | 1316 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 DE |
1317 | |
1318 | /* The pspace could have been created but not have a cache yet. */ | |
1319 | if (cache != NULL) | |
1320 | resize_symbol_cache (cache, new_size); | |
1321 | } | |
1322 | } | |
1323 | ||
1324 | /* Called when symbol-cache-size is set. */ | |
1325 | ||
1326 | static void | |
eb4c3f4a | 1327 | set_symbol_cache_size_handler (const char *args, int from_tty, |
f57d2163 DE |
1328 | struct cmd_list_element *c) |
1329 | { | |
1330 | if (new_symbol_cache_size > MAX_SYMBOL_CACHE_SIZE) | |
1331 | { | |
1332 | /* Restore the previous value. | |
1333 | This is the value the "show" command prints. */ | |
1334 | new_symbol_cache_size = symbol_cache_size; | |
1335 | ||
1336 | error (_("Symbol cache size is too large, max is %u."), | |
1337 | MAX_SYMBOL_CACHE_SIZE); | |
1338 | } | |
1339 | symbol_cache_size = new_symbol_cache_size; | |
1340 | ||
1341 | set_symbol_cache_size (symbol_cache_size); | |
1342 | } | |
1343 | ||
1344 | /* Lookup symbol NAME,DOMAIN in BLOCK in the symbol cache of PSPACE. | |
1345 | OBJFILE_CONTEXT is the current objfile, which may be NULL. | |
1346 | The result is the symbol if found, SYMBOL_LOOKUP_FAILED if a previous lookup | |
1347 | failed (and thus this one will too), or NULL if the symbol is not present | |
1348 | in the cache. | |
d0509ba4 CB |
1349 | *BSC_PTR and *SLOT_PTR are set to the cache and slot of the symbol, which |
1350 | can be used to save the result of a full lookup attempt. */ | |
f57d2163 | 1351 | |
d12307c1 | 1352 | static struct block_symbol |
f57d2163 | 1353 | symbol_cache_lookup (struct symbol_cache *cache, |
ddbcedf5 | 1354 | struct objfile *objfile_context, enum block_enum block, |
f57d2163 DE |
1355 | const char *name, domain_enum domain, |
1356 | struct block_symbol_cache **bsc_ptr, | |
1357 | struct symbol_cache_slot **slot_ptr) | |
1358 | { | |
1359 | struct block_symbol_cache *bsc; | |
1360 | unsigned int hash; | |
1361 | struct symbol_cache_slot *slot; | |
1362 | ||
1363 | if (block == GLOBAL_BLOCK) | |
1364 | bsc = cache->global_symbols; | |
1365 | else | |
1366 | bsc = cache->static_symbols; | |
1367 | if (bsc == NULL) | |
1368 | { | |
1369 | *bsc_ptr = NULL; | |
1370 | *slot_ptr = NULL; | |
6640a367 | 1371 | return {}; |
f57d2163 DE |
1372 | } |
1373 | ||
1374 | hash = hash_symbol_entry (objfile_context, name, domain); | |
1375 | slot = bsc->symbols + hash % bsc->size; | |
f57d2163 | 1376 | |
d0509ba4 CB |
1377 | *bsc_ptr = bsc; |
1378 | *slot_ptr = slot; | |
1379 | ||
f57d2163 DE |
1380 | if (eq_symbol_entry (slot, objfile_context, name, domain)) |
1381 | { | |
1382 | if (symbol_lookup_debug) | |
1383 | fprintf_unfiltered (gdb_stdlog, | |
1384 | "%s block symbol cache hit%s for %s, %s\n", | |
1385 | block == GLOBAL_BLOCK ? "Global" : "Static", | |
1386 | slot->state == SYMBOL_SLOT_NOT_FOUND | |
1387 | ? " (not found)" : "", | |
1388 | name, domain_name (domain)); | |
1389 | ++bsc->hits; | |
1390 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
1391 | return SYMBOL_LOOKUP_FAILED; | |
1392 | return slot->value.found; | |
1393 | } | |
1394 | ||
2c26b84f DE |
1395 | /* Symbol is not present in the cache. */ |
1396 | ||
f57d2163 DE |
1397 | if (symbol_lookup_debug) |
1398 | { | |
1399 | fprintf_unfiltered (gdb_stdlog, | |
1400 | "%s block symbol cache miss for %s, %s\n", | |
1401 | block == GLOBAL_BLOCK ? "Global" : "Static", | |
1402 | name, domain_name (domain)); | |
1403 | } | |
1404 | ++bsc->misses; | |
6640a367 | 1405 | return {}; |
f57d2163 DE |
1406 | } |
1407 | ||
f57d2163 DE |
1408 | /* Mark SYMBOL as found in SLOT. |
1409 | OBJFILE_CONTEXT is the current objfile when the lookup was done, or NULL | |
1410 | if it's not needed to distinguish lookups (STATIC_BLOCK). It is *not* | |
1411 | necessarily the objfile the symbol was found in. */ | |
1412 | ||
1413 | static void | |
1414 | symbol_cache_mark_found (struct block_symbol_cache *bsc, | |
1415 | struct symbol_cache_slot *slot, | |
1416 | struct objfile *objfile_context, | |
d12307c1 PMR |
1417 | struct symbol *symbol, |
1418 | const struct block *block) | |
f57d2163 DE |
1419 | { |
1420 | if (bsc == NULL) | |
1421 | return; | |
1422 | if (slot->state != SYMBOL_SLOT_UNUSED) | |
1423 | { | |
1424 | ++bsc->collisions; | |
1425 | symbol_cache_clear_slot (slot); | |
1426 | } | |
1427 | slot->state = SYMBOL_SLOT_FOUND; | |
1428 | slot->objfile_context = objfile_context; | |
d12307c1 PMR |
1429 | slot->value.found.symbol = symbol; |
1430 | slot->value.found.block = block; | |
f57d2163 DE |
1431 | } |
1432 | ||
1433 | /* Mark symbol NAME, DOMAIN as not found in SLOT. | |
1434 | OBJFILE_CONTEXT is the current objfile when the lookup was done, or NULL | |
1435 | if it's not needed to distinguish lookups (STATIC_BLOCK). */ | |
1436 | ||
1437 | static void | |
1438 | symbol_cache_mark_not_found (struct block_symbol_cache *bsc, | |
1439 | struct symbol_cache_slot *slot, | |
1440 | struct objfile *objfile_context, | |
1441 | const char *name, domain_enum domain) | |
1442 | { | |
1443 | if (bsc == NULL) | |
1444 | return; | |
1445 | if (slot->state != SYMBOL_SLOT_UNUSED) | |
1446 | { | |
1447 | ++bsc->collisions; | |
1448 | symbol_cache_clear_slot (slot); | |
1449 | } | |
1450 | slot->state = SYMBOL_SLOT_NOT_FOUND; | |
1451 | slot->objfile_context = objfile_context; | |
1452 | slot->value.not_found.name = xstrdup (name); | |
1453 | slot->value.not_found.domain = domain; | |
1454 | } | |
1455 | ||
1456 | /* Flush the symbol cache of PSPACE. */ | |
1457 | ||
1458 | static void | |
1459 | symbol_cache_flush (struct program_space *pspace) | |
1460 | { | |
3017b94d | 1461 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 | 1462 | int pass; |
f57d2163 DE |
1463 | |
1464 | if (cache == NULL) | |
1465 | return; | |
1466 | if (cache->global_symbols == NULL) | |
1467 | { | |
1468 | gdb_assert (symbol_cache_size == 0); | |
1469 | gdb_assert (cache->static_symbols == NULL); | |
1470 | return; | |
1471 | } | |
1472 | ||
1473 | /* If the cache is untouched since the last flush, early exit. | |
1474 | This is important for performance during the startup of a program linked | |
1475 | with 100s (or 1000s) of shared libraries. */ | |
1476 | if (cache->global_symbols->misses == 0 | |
1477 | && cache->static_symbols->misses == 0) | |
1478 | return; | |
1479 | ||
1480 | gdb_assert (cache->global_symbols->size == symbol_cache_size); | |
1481 | gdb_assert (cache->static_symbols->size == symbol_cache_size); | |
1482 | ||
1483 | for (pass = 0; pass < 2; ++pass) | |
1484 | { | |
1485 | struct block_symbol_cache *bsc | |
1486 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1487 | unsigned int i; | |
1488 | ||
1489 | for (i = 0; i < bsc->size; ++i) | |
1490 | symbol_cache_clear_slot (&bsc->symbols[i]); | |
1491 | } | |
1492 | ||
1493 | cache->global_symbols->hits = 0; | |
1494 | cache->global_symbols->misses = 0; | |
1495 | cache->global_symbols->collisions = 0; | |
1496 | cache->static_symbols->hits = 0; | |
1497 | cache->static_symbols->misses = 0; | |
1498 | cache->static_symbols->collisions = 0; | |
1499 | } | |
1500 | ||
1501 | /* Dump CACHE. */ | |
1502 | ||
1503 | static void | |
1504 | symbol_cache_dump (const struct symbol_cache *cache) | |
1505 | { | |
1506 | int pass; | |
1507 | ||
1508 | if (cache->global_symbols == NULL) | |
1509 | { | |
1510 | printf_filtered (" <disabled>\n"); | |
1511 | return; | |
1512 | } | |
1513 | ||
1514 | for (pass = 0; pass < 2; ++pass) | |
1515 | { | |
1516 | const struct block_symbol_cache *bsc | |
1517 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1518 | unsigned int i; | |
1519 | ||
1520 | if (pass == 0) | |
1521 | printf_filtered ("Global symbols:\n"); | |
1522 | else | |
1523 | printf_filtered ("Static symbols:\n"); | |
1524 | ||
1525 | for (i = 0; i < bsc->size; ++i) | |
1526 | { | |
1527 | const struct symbol_cache_slot *slot = &bsc->symbols[i]; | |
1528 | ||
1529 | QUIT; | |
1530 | ||
1531 | switch (slot->state) | |
1532 | { | |
1533 | case SYMBOL_SLOT_UNUSED: | |
1534 | break; | |
1535 | case SYMBOL_SLOT_NOT_FOUND: | |
2c26b84f | 1536 | printf_filtered (" [%4u] = %s, %s %s (not found)\n", i, |
f57d2163 | 1537 | host_address_to_string (slot->objfile_context), |
2c26b84f DE |
1538 | slot->value.not_found.name, |
1539 | domain_name (slot->value.not_found.domain)); | |
f57d2163 DE |
1540 | break; |
1541 | case SYMBOL_SLOT_FOUND: | |
d12307c1 PMR |
1542 | { |
1543 | struct symbol *found = slot->value.found.symbol; | |
1544 | const struct objfile *context = slot->objfile_context; | |
1545 | ||
1546 | printf_filtered (" [%4u] = %s, %s %s\n", i, | |
1547 | host_address_to_string (context), | |
987012b8 | 1548 | found->print_name (), |
d12307c1 PMR |
1549 | domain_name (SYMBOL_DOMAIN (found))); |
1550 | break; | |
1551 | } | |
f57d2163 DE |
1552 | } |
1553 | } | |
1554 | } | |
1555 | } | |
1556 | ||
1557 | /* The "mt print symbol-cache" command. */ | |
1558 | ||
1559 | static void | |
510e5e56 | 1560 | maintenance_print_symbol_cache (const char *args, int from_tty) |
f57d2163 | 1561 | { |
94c93c35 | 1562 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1563 | { |
1564 | struct symbol_cache *cache; | |
1565 | ||
1566 | printf_filtered (_("Symbol cache for pspace %d\n%s:\n"), | |
1567 | pspace->num, | |
1568 | pspace->symfile_object_file != NULL | |
1569 | ? objfile_name (pspace->symfile_object_file) | |
1570 | : "(no object file)"); | |
1571 | ||
1572 | /* If the cache hasn't been created yet, avoid creating one. */ | |
3017b94d | 1573 | cache = symbol_cache_key.get (pspace); |
f57d2163 DE |
1574 | if (cache == NULL) |
1575 | printf_filtered (" <empty>\n"); | |
1576 | else | |
1577 | symbol_cache_dump (cache); | |
1578 | } | |
1579 | } | |
1580 | ||
1581 | /* The "mt flush-symbol-cache" command. */ | |
1582 | ||
1583 | static void | |
510e5e56 | 1584 | maintenance_flush_symbol_cache (const char *args, int from_tty) |
f57d2163 | 1585 | { |
94c93c35 | 1586 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1587 | { |
1588 | symbol_cache_flush (pspace); | |
1589 | } | |
1590 | } | |
1591 | ||
1592 | /* Print usage statistics of CACHE. */ | |
1593 | ||
1594 | static void | |
1595 | symbol_cache_stats (struct symbol_cache *cache) | |
1596 | { | |
1597 | int pass; | |
1598 | ||
1599 | if (cache->global_symbols == NULL) | |
1600 | { | |
1601 | printf_filtered (" <disabled>\n"); | |
1602 | return; | |
1603 | } | |
1604 | ||
1605 | for (pass = 0; pass < 2; ++pass) | |
1606 | { | |
1607 | const struct block_symbol_cache *bsc | |
1608 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1609 | ||
1610 | QUIT; | |
1611 | ||
1612 | if (pass == 0) | |
1613 | printf_filtered ("Global block cache stats:\n"); | |
1614 | else | |
1615 | printf_filtered ("Static block cache stats:\n"); | |
1616 | ||
1617 | printf_filtered (" size: %u\n", bsc->size); | |
1618 | printf_filtered (" hits: %u\n", bsc->hits); | |
1619 | printf_filtered (" misses: %u\n", bsc->misses); | |
1620 | printf_filtered (" collisions: %u\n", bsc->collisions); | |
1621 | } | |
1622 | } | |
1623 | ||
1624 | /* The "mt print symbol-cache-statistics" command. */ | |
1625 | ||
1626 | static void | |
510e5e56 | 1627 | maintenance_print_symbol_cache_statistics (const char *args, int from_tty) |
f57d2163 | 1628 | { |
94c93c35 | 1629 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1630 | { |
1631 | struct symbol_cache *cache; | |
1632 | ||
1633 | printf_filtered (_("Symbol cache statistics for pspace %d\n%s:\n"), | |
1634 | pspace->num, | |
1635 | pspace->symfile_object_file != NULL | |
1636 | ? objfile_name (pspace->symfile_object_file) | |
1637 | : "(no object file)"); | |
1638 | ||
1639 | /* If the cache hasn't been created yet, avoid creating one. */ | |
3017b94d | 1640 | cache = symbol_cache_key.get (pspace); |
f57d2163 | 1641 | if (cache == NULL) |
24b21115 | 1642 | printf_filtered (" empty, no stats available\n"); |
f57d2163 DE |
1643 | else |
1644 | symbol_cache_stats (cache); | |
1645 | } | |
1646 | } | |
1647 | ||
1648 | /* This module's 'new_objfile' observer. */ | |
1649 | ||
1650 | static void | |
1651 | symtab_new_objfile_observer (struct objfile *objfile) | |
1652 | { | |
1653 | /* Ideally we'd use OBJFILE->pspace, but OBJFILE may be NULL. */ | |
1654 | symbol_cache_flush (current_program_space); | |
1655 | } | |
1656 | ||
1657 | /* This module's 'free_objfile' observer. */ | |
1658 | ||
1659 | static void | |
1660 | symtab_free_objfile_observer (struct objfile *objfile) | |
1661 | { | |
1662 | symbol_cache_flush (objfile->pspace); | |
1663 | } | |
1664 | \f | |
c906108c SS |
1665 | /* Debug symbols usually don't have section information. We need to dig that |
1666 | out of the minimal symbols and stash that in the debug symbol. */ | |
1667 | ||
ccefe4c4 | 1668 | void |
907fc202 UW |
1669 | fixup_section (struct general_symbol_info *ginfo, |
1670 | CORE_ADDR addr, struct objfile *objfile) | |
c906108c SS |
1671 | { |
1672 | struct minimal_symbol *msym; | |
c906108c | 1673 | |
bccdca4a UW |
1674 | /* First, check whether a minimal symbol with the same name exists |
1675 | and points to the same address. The address check is required | |
1676 | e.g. on PowerPC64, where the minimal symbol for a function will | |
1677 | point to the function descriptor, while the debug symbol will | |
1678 | point to the actual function code. */ | |
4d4eaa30 CB |
1679 | msym = lookup_minimal_symbol_by_pc_name (addr, ginfo->linkage_name (), |
1680 | objfile); | |
907fc202 | 1681 | if (msym) |
a52d653e | 1682 | ginfo->set_section_index (msym->section_index ()); |
907fc202 | 1683 | else |
19e2d14b KB |
1684 | { |
1685 | /* Static, function-local variables do appear in the linker | |
1686 | (minimal) symbols, but are frequently given names that won't | |
1687 | be found via lookup_minimal_symbol(). E.g., it has been | |
1688 | observed in frv-uclinux (ELF) executables that a static, | |
1689 | function-local variable named "foo" might appear in the | |
1690 | linker symbols as "foo.6" or "foo.3". Thus, there is no | |
1691 | point in attempting to extend the lookup-by-name mechanism to | |
1692 | handle this case due to the fact that there can be multiple | |
1693 | names. | |
9af17804 | 1694 | |
19e2d14b KB |
1695 | So, instead, search the section table when lookup by name has |
1696 | failed. The ``addr'' and ``endaddr'' fields may have already | |
6a053cb1 TT |
1697 | been relocated. If so, the relocation offset needs to be |
1698 | subtracted from these values when performing the comparison. | |
1699 | We unconditionally subtract it, because, when no relocation | |
1700 | has been performed, the value will simply be zero. | |
9af17804 | 1701 | |
19e2d14b KB |
1702 | The address of the symbol whose section we're fixing up HAS |
1703 | NOT BEEN adjusted (relocated) yet. It can't have been since | |
1704 | the section isn't yet known and knowing the section is | |
1705 | necessary in order to add the correct relocation value. In | |
1706 | other words, we wouldn't even be in this function (attempting | |
1707 | to compute the section) if it were already known. | |
1708 | ||
1709 | Note that it is possible to search the minimal symbols | |
1710 | (subtracting the relocation value if necessary) to find the | |
1711 | matching minimal symbol, but this is overkill and much less | |
1712 | efficient. It is not necessary to find the matching minimal | |
9af17804 DE |
1713 | symbol, only its section. |
1714 | ||
19e2d14b KB |
1715 | Note that this technique (of doing a section table search) |
1716 | can fail when unrelocated section addresses overlap. For | |
1717 | this reason, we still attempt a lookup by name prior to doing | |
1718 | a search of the section table. */ | |
9af17804 | 1719 | |
19e2d14b | 1720 | struct obj_section *s; |
e27d198c | 1721 | int fallback = -1; |
433759f7 | 1722 | |
19e2d14b KB |
1723 | ALL_OBJFILE_OSECTIONS (objfile, s) |
1724 | { | |
65cf3563 | 1725 | int idx = s - objfile->sections; |
6a053cb1 | 1726 | CORE_ADDR offset = objfile->section_offsets[idx]; |
19e2d14b | 1727 | |
e27d198c TT |
1728 | if (fallback == -1) |
1729 | fallback = idx; | |
1730 | ||
0c1bcd23 | 1731 | if (s->addr () - offset <= addr && addr < s->endaddr () - offset) |
19e2d14b | 1732 | { |
a52d653e | 1733 | ginfo->set_section_index (idx); |
19e2d14b KB |
1734 | return; |
1735 | } | |
1736 | } | |
e27d198c TT |
1737 | |
1738 | /* If we didn't find the section, assume it is in the first | |
1739 | section. If there is no allocated section, then it hardly | |
1740 | matters what we pick, so just pick zero. */ | |
1741 | if (fallback == -1) | |
a52d653e | 1742 | ginfo->set_section_index (0); |
e27d198c | 1743 | else |
a52d653e | 1744 | ginfo->set_section_index (fallback); |
19e2d14b | 1745 | } |
c906108c SS |
1746 | } |
1747 | ||
1748 | struct symbol * | |
fba45db2 | 1749 | fixup_symbol_section (struct symbol *sym, struct objfile *objfile) |
c906108c | 1750 | { |
907fc202 UW |
1751 | CORE_ADDR addr; |
1752 | ||
c906108c SS |
1753 | if (!sym) |
1754 | return NULL; | |
1755 | ||
1994afbf DE |
1756 | if (!SYMBOL_OBJFILE_OWNED (sym)) |
1757 | return sym; | |
1758 | ||
907fc202 UW |
1759 | /* We either have an OBJFILE, or we can get at it from the sym's |
1760 | symtab. Anything else is a bug. */ | |
08be3fe3 | 1761 | gdb_assert (objfile || symbol_symtab (sym)); |
907fc202 UW |
1762 | |
1763 | if (objfile == NULL) | |
08be3fe3 | 1764 | objfile = symbol_objfile (sym); |
907fc202 | 1765 | |
ebbc3a7d | 1766 | if (sym->obj_section (objfile) != nullptr) |
e27d198c TT |
1767 | return sym; |
1768 | ||
907fc202 UW |
1769 | /* We should have an objfile by now. */ |
1770 | gdb_assert (objfile); | |
1771 | ||
1772 | switch (SYMBOL_CLASS (sym)) | |
1773 | { | |
1774 | case LOC_STATIC: | |
1775 | case LOC_LABEL: | |
907fc202 UW |
1776 | addr = SYMBOL_VALUE_ADDRESS (sym); |
1777 | break; | |
1778 | case LOC_BLOCK: | |
2b1ffcfd | 1779 | addr = BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (sym)); |
907fc202 UW |
1780 | break; |
1781 | ||
1782 | default: | |
1783 | /* Nothing else will be listed in the minsyms -- no use looking | |
1784 | it up. */ | |
1785 | return sym; | |
1786 | } | |
1787 | ||
468c0cbb | 1788 | fixup_section (sym, addr, objfile); |
c906108c SS |
1789 | |
1790 | return sym; | |
1791 | } | |
1792 | ||
b5ec771e PA |
1793 | /* See symtab.h. */ |
1794 | ||
1795 | demangle_for_lookup_info::demangle_for_lookup_info | |
1796 | (const lookup_name_info &lookup_name, language lang) | |
1797 | { | |
1798 | demangle_result_storage storage; | |
1799 | ||
c62446b1 PA |
1800 | if (lookup_name.ignore_parameters () && lang == language_cplus) |
1801 | { | |
1802 | gdb::unique_xmalloc_ptr<char> without_params | |
e0802d59 | 1803 | = cp_remove_params_if_any (lookup_name.c_str (), |
c62446b1 PA |
1804 | lookup_name.completion_mode ()); |
1805 | ||
1806 | if (without_params != NULL) | |
1807 | { | |
de63c46b PA |
1808 | if (lookup_name.match_type () != symbol_name_match_type::SEARCH_NAME) |
1809 | m_demangled_name = demangle_for_lookup (without_params.get (), | |
1810 | lang, storage); | |
c62446b1 PA |
1811 | return; |
1812 | } | |
1813 | } | |
1814 | ||
de63c46b | 1815 | if (lookup_name.match_type () == symbol_name_match_type::SEARCH_NAME) |
e0802d59 | 1816 | m_demangled_name = lookup_name.c_str (); |
de63c46b | 1817 | else |
e0802d59 | 1818 | m_demangled_name = demangle_for_lookup (lookup_name.c_str (), |
de63c46b | 1819 | lang, storage); |
b5ec771e PA |
1820 | } |
1821 | ||
1822 | /* See symtab.h. */ | |
1823 | ||
1824 | const lookup_name_info & | |
1825 | lookup_name_info::match_any () | |
1826 | { | |
1827 | /* Lookup any symbol that "" would complete. I.e., this matches all | |
1828 | symbol names. */ | |
e0802d59 | 1829 | static const lookup_name_info lookup_name ("", symbol_name_match_type::FULL, |
b5ec771e PA |
1830 | true); |
1831 | ||
1832 | return lookup_name; | |
1833 | } | |
1834 | ||
f8eba3c6 | 1835 | /* Compute the demangled form of NAME as used by the various symbol |
2f408ecb PA |
1836 | lookup functions. The result can either be the input NAME |
1837 | directly, or a pointer to a buffer owned by the STORAGE object. | |
f8eba3c6 | 1838 | |
2f408ecb | 1839 | For Ada, this function just returns NAME, unmodified. |
f8eba3c6 TT |
1840 | Normally, Ada symbol lookups are performed using the encoded name |
1841 | rather than the demangled name, and so it might seem to make sense | |
1842 | for this function to return an encoded version of NAME. | |
1843 | Unfortunately, we cannot do this, because this function is used in | |
1844 | circumstances where it is not appropriate to try to encode NAME. | |
1845 | For instance, when displaying the frame info, we demangle the name | |
1846 | of each parameter, and then perform a symbol lookup inside our | |
1847 | function using that demangled name. In Ada, certain functions | |
1848 | have internally-generated parameters whose name contain uppercase | |
1849 | characters. Encoding those name would result in those uppercase | |
1850 | characters to become lowercase, and thus cause the symbol lookup | |
1851 | to fail. */ | |
c906108c | 1852 | |
2f408ecb | 1853 | const char * |
f8eba3c6 | 1854 | demangle_for_lookup (const char *name, enum language lang, |
2f408ecb | 1855 | demangle_result_storage &storage) |
c906108c | 1856 | { |
9c37b5ae | 1857 | /* If we are using C++, D, or Go, demangle the name before doing a |
c378eb4e | 1858 | lookup, so we can always binary search. */ |
53c5240f | 1859 | if (lang == language_cplus) |
729051e6 | 1860 | { |
2f408ecb PA |
1861 | char *demangled_name = gdb_demangle (name, DMGL_ANSI | DMGL_PARAMS); |
1862 | if (demangled_name != NULL) | |
1863 | return storage.set_malloc_ptr (demangled_name); | |
1864 | ||
1865 | /* If we were given a non-mangled name, canonicalize it | |
1866 | according to the language (so far only for C++). */ | |
596dc4ad TT |
1867 | gdb::unique_xmalloc_ptr<char> canon = cp_canonicalize_string (name); |
1868 | if (canon != nullptr) | |
1869 | return storage.set_malloc_ptr (std::move (canon)); | |
729051e6 | 1870 | } |
6aecb9c2 JB |
1871 | else if (lang == language_d) |
1872 | { | |
2f408ecb PA |
1873 | char *demangled_name = d_demangle (name, 0); |
1874 | if (demangled_name != NULL) | |
1875 | return storage.set_malloc_ptr (demangled_name); | |
6aecb9c2 | 1876 | } |
a766d390 DE |
1877 | else if (lang == language_go) |
1878 | { | |
82fc57fd AB |
1879 | char *demangled_name |
1880 | = language_def (language_go)->demangle_symbol (name, 0); | |
2f408ecb PA |
1881 | if (demangled_name != NULL) |
1882 | return storage.set_malloc_ptr (demangled_name); | |
a766d390 | 1883 | } |
729051e6 | 1884 | |
2f408ecb | 1885 | return name; |
f8eba3c6 TT |
1886 | } |
1887 | ||
5ffa0793 PA |
1888 | /* See symtab.h. */ |
1889 | ||
1890 | unsigned int | |
1891 | search_name_hash (enum language language, const char *search_name) | |
1892 | { | |
fb8006fd | 1893 | return language_def (language)->search_name_hash (search_name); |
5ffa0793 PA |
1894 | } |
1895 | ||
cf901d3b | 1896 | /* See symtab.h. |
f8eba3c6 | 1897 | |
cf901d3b | 1898 | This function (or rather its subordinates) have a bunch of loops and |
7e082072 DE |
1899 | it would seem to be attractive to put in some QUIT's (though I'm not really |
1900 | sure whether it can run long enough to be really important). But there | |
f8eba3c6 | 1901 | are a few calls for which it would appear to be bad news to quit |
7e082072 | 1902 | out of here: e.g., find_proc_desc in alpha-mdebug-tdep.c. (Note |
f8eba3c6 TT |
1903 | that there is C++ code below which can error(), but that probably |
1904 | doesn't affect these calls since they are looking for a known | |
1905 | variable and thus can probably assume it will never hit the C++ | |
1906 | code). */ | |
1907 | ||
d12307c1 | 1908 | struct block_symbol |
f8eba3c6 TT |
1909 | lookup_symbol_in_language (const char *name, const struct block *block, |
1910 | const domain_enum domain, enum language lang, | |
1993b719 | 1911 | struct field_of_this_result *is_a_field_of_this) |
f8eba3c6 | 1912 | { |
2f408ecb PA |
1913 | demangle_result_storage storage; |
1914 | const char *modified_name = demangle_for_lookup (name, lang, storage); | |
f8eba3c6 | 1915 | |
de63c46b PA |
1916 | return lookup_symbol_aux (modified_name, |
1917 | symbol_name_match_type::FULL, | |
1918 | block, domain, lang, | |
2f408ecb | 1919 | is_a_field_of_this); |
fba7f19c EZ |
1920 | } |
1921 | ||
cf901d3b | 1922 | /* See symtab.h. */ |
53c5240f | 1923 | |
d12307c1 | 1924 | struct block_symbol |
53c5240f | 1925 | lookup_symbol (const char *name, const struct block *block, |
1993b719 TT |
1926 | domain_enum domain, |
1927 | struct field_of_this_result *is_a_field_of_this) | |
53c5240f PA |
1928 | { |
1929 | return lookup_symbol_in_language (name, block, domain, | |
1930 | current_language->la_language, | |
2570f2b7 | 1931 | is_a_field_of_this); |
53c5240f PA |
1932 | } |
1933 | ||
cf901d3b | 1934 | /* See symtab.h. */ |
66a17cb6 | 1935 | |
de63c46b PA |
1936 | struct block_symbol |
1937 | lookup_symbol_search_name (const char *search_name, const struct block *block, | |
1938 | domain_enum domain) | |
1939 | { | |
1940 | return lookup_symbol_aux (search_name, symbol_name_match_type::SEARCH_NAME, | |
1941 | block, domain, language_asm, NULL); | |
1942 | } | |
1943 | ||
1944 | /* See symtab.h. */ | |
1945 | ||
d12307c1 | 1946 | struct block_symbol |
66a17cb6 TT |
1947 | lookup_language_this (const struct language_defn *lang, |
1948 | const struct block *block) | |
1949 | { | |
5bae7c4e | 1950 | if (lang->name_of_this () == NULL || block == NULL) |
6640a367 | 1951 | return {}; |
66a17cb6 | 1952 | |
cc485e62 DE |
1953 | if (symbol_lookup_debug > 1) |
1954 | { | |
d6bc0792 | 1955 | struct objfile *objfile = block_objfile (block); |
cc485e62 DE |
1956 | |
1957 | fprintf_unfiltered (gdb_stdlog, | |
1958 | "lookup_language_this (%s, %s (objfile %s))", | |
6f7664a9 | 1959 | lang->name (), host_address_to_string (block), |
cc485e62 DE |
1960 | objfile_debug_name (objfile)); |
1961 | } | |
1962 | ||
03de6823 | 1963 | while (block) |
66a17cb6 TT |
1964 | { |
1965 | struct symbol *sym; | |
1966 | ||
5bae7c4e | 1967 | sym = block_lookup_symbol (block, lang->name_of_this (), |
de63c46b PA |
1968 | symbol_name_match_type::SEARCH_NAME, |
1969 | VAR_DOMAIN); | |
66a17cb6 | 1970 | if (sym != NULL) |
f149aabd | 1971 | { |
cc485e62 DE |
1972 | if (symbol_lookup_debug > 1) |
1973 | { | |
1974 | fprintf_unfiltered (gdb_stdlog, " = %s (%s, block %s)\n", | |
987012b8 | 1975 | sym->print_name (), |
cc485e62 DE |
1976 | host_address_to_string (sym), |
1977 | host_address_to_string (block)); | |
1978 | } | |
d12307c1 | 1979 | return (struct block_symbol) {sym, block}; |
f149aabd | 1980 | } |
66a17cb6 | 1981 | if (BLOCK_FUNCTION (block)) |
03de6823 | 1982 | break; |
66a17cb6 TT |
1983 | block = BLOCK_SUPERBLOCK (block); |
1984 | } | |
03de6823 | 1985 | |
cc485e62 DE |
1986 | if (symbol_lookup_debug > 1) |
1987 | fprintf_unfiltered (gdb_stdlog, " = NULL\n"); | |
6640a367 | 1988 | return {}; |
66a17cb6 TT |
1989 | } |
1990 | ||
2dc3df72 TT |
1991 | /* Given TYPE, a structure/union, |
1992 | return 1 if the component named NAME from the ultimate target | |
1993 | structure/union is defined, otherwise, return 0. */ | |
1994 | ||
1995 | static int | |
1993b719 TT |
1996 | check_field (struct type *type, const char *name, |
1997 | struct field_of_this_result *is_a_field_of_this) | |
2dc3df72 TT |
1998 | { |
1999 | int i; | |
2000 | ||
2001 | /* The type may be a stub. */ | |
f168693b | 2002 | type = check_typedef (type); |
2dc3df72 | 2003 | |
1f704f76 | 2004 | for (i = type->num_fields () - 1; i >= TYPE_N_BASECLASSES (type); i--) |
2dc3df72 | 2005 | { |
33d16dd9 | 2006 | const char *t_field_name = type->field (i).name (); |
2dc3df72 TT |
2007 | |
2008 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) | |
1993b719 TT |
2009 | { |
2010 | is_a_field_of_this->type = type; | |
ceacbf6e | 2011 | is_a_field_of_this->field = &type->field (i); |
1993b719 TT |
2012 | return 1; |
2013 | } | |
2dc3df72 TT |
2014 | } |
2015 | ||
2016 | /* C++: If it was not found as a data field, then try to return it | |
2017 | as a pointer to a method. */ | |
2018 | ||
2019 | for (i = TYPE_NFN_FIELDS (type) - 1; i >= 0; --i) | |
2020 | { | |
2021 | if (strcmp_iw (TYPE_FN_FIELDLIST_NAME (type, i), name) == 0) | |
1993b719 TT |
2022 | { |
2023 | is_a_field_of_this->type = type; | |
2024 | is_a_field_of_this->fn_field = &TYPE_FN_FIELDLIST (type, i); | |
2025 | return 1; | |
2026 | } | |
2dc3df72 TT |
2027 | } |
2028 | ||
2029 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1993b719 | 2030 | if (check_field (TYPE_BASECLASS (type, i), name, is_a_field_of_this)) |
2dc3df72 TT |
2031 | return 1; |
2032 | ||
2033 | return 0; | |
2034 | } | |
2035 | ||
53c5240f | 2036 | /* Behave like lookup_symbol except that NAME is the natural name |
7e082072 | 2037 | (e.g., demangled name) of the symbol that we're looking for. */ |
5ad1c190 | 2038 | |
d12307c1 | 2039 | static struct block_symbol |
de63c46b PA |
2040 | lookup_symbol_aux (const char *name, symbol_name_match_type match_type, |
2041 | const struct block *block, | |
94af9270 | 2042 | const domain_enum domain, enum language language, |
1993b719 | 2043 | struct field_of_this_result *is_a_field_of_this) |
fba7f19c | 2044 | { |
d12307c1 | 2045 | struct block_symbol result; |
53c5240f | 2046 | const struct language_defn *langdef; |
406bc4de | 2047 | |
cc485e62 DE |
2048 | if (symbol_lookup_debug) |
2049 | { | |
d6bc0792 TT |
2050 | struct objfile *objfile = (block == nullptr |
2051 | ? nullptr : block_objfile (block)); | |
cc485e62 DE |
2052 | |
2053 | fprintf_unfiltered (gdb_stdlog, | |
2054 | "lookup_symbol_aux (%s, %s (objfile %s), %s, %s)\n", | |
2055 | name, host_address_to_string (block), | |
2056 | objfile != NULL | |
2057 | ? objfile_debug_name (objfile) : "NULL", | |
2058 | domain_name (domain), language_str (language)); | |
2059 | } | |
2060 | ||
9a146a11 EZ |
2061 | /* Make sure we do something sensible with is_a_field_of_this, since |
2062 | the callers that set this parameter to some non-null value will | |
1993b719 TT |
2063 | certainly use it later. If we don't set it, the contents of |
2064 | is_a_field_of_this are undefined. */ | |
9a146a11 | 2065 | if (is_a_field_of_this != NULL) |
1993b719 | 2066 | memset (is_a_field_of_this, 0, sizeof (*is_a_field_of_this)); |
9a146a11 | 2067 | |
e4051eeb DC |
2068 | /* Search specified block and its superiors. Don't search |
2069 | STATIC_BLOCK or GLOBAL_BLOCK. */ | |
c906108c | 2070 | |
de63c46b | 2071 | result = lookup_local_symbol (name, match_type, block, domain, language); |
d12307c1 | 2072 | if (result.symbol != NULL) |
cc485e62 DE |
2073 | { |
2074 | if (symbol_lookup_debug) | |
2075 | { | |
2076 | fprintf_unfiltered (gdb_stdlog, "lookup_symbol_aux (...) = %s\n", | |
d12307c1 | 2077 | host_address_to_string (result.symbol)); |
cc485e62 | 2078 | } |
d12307c1 | 2079 | return result; |
cc485e62 | 2080 | } |
c906108c | 2081 | |
53c5240f | 2082 | /* If requested to do so by the caller and if appropriate for LANGUAGE, |
13387711 | 2083 | check to see if NAME is a field of `this'. */ |
53c5240f PA |
2084 | |
2085 | langdef = language_def (language); | |
5f9a71c3 | 2086 | |
6592e36f TT |
2087 | /* Don't do this check if we are searching for a struct. It will |
2088 | not be found by check_field, but will be found by other | |
2089 | means. */ | |
2090 | if (is_a_field_of_this != NULL && domain != STRUCT_DOMAIN) | |
c906108c | 2091 | { |
d12307c1 | 2092 | result = lookup_language_this (langdef, block); |
2b2d9e11 | 2093 | |
d12307c1 | 2094 | if (result.symbol) |
c906108c | 2095 | { |
d12307c1 | 2096 | struct type *t = result.symbol->type; |
9af17804 | 2097 | |
2b2d9e11 VP |
2098 | /* I'm not really sure that type of this can ever |
2099 | be typedefed; just be safe. */ | |
f168693b | 2100 | t = check_typedef (t); |
809f3be1 | 2101 | if (t->is_pointer_or_reference ()) |
2b2d9e11 | 2102 | t = TYPE_TARGET_TYPE (t); |
9af17804 | 2103 | |
78134374 SM |
2104 | if (t->code () != TYPE_CODE_STRUCT |
2105 | && t->code () != TYPE_CODE_UNION) | |
9af17804 | 2106 | error (_("Internal error: `%s' is not an aggregate"), |
5bae7c4e | 2107 | langdef->name_of_this ()); |
9af17804 | 2108 | |
1993b719 | 2109 | if (check_field (t, name, is_a_field_of_this)) |
cc485e62 DE |
2110 | { |
2111 | if (symbol_lookup_debug) | |
2112 | { | |
2113 | fprintf_unfiltered (gdb_stdlog, | |
2114 | "lookup_symbol_aux (...) = NULL\n"); | |
2115 | } | |
6640a367 | 2116 | return {}; |
cc485e62 | 2117 | } |
c906108c SS |
2118 | } |
2119 | } | |
2120 | ||
53c5240f | 2121 | /* Now do whatever is appropriate for LANGUAGE to look |
774b6a14 | 2122 | up static and global variables. */ |
c906108c | 2123 | |
a78a19b1 | 2124 | result = langdef->lookup_symbol_nonlocal (name, block, domain); |
d12307c1 | 2125 | if (result.symbol != NULL) |
cc485e62 DE |
2126 | { |
2127 | if (symbol_lookup_debug) | |
2128 | { | |
2129 | fprintf_unfiltered (gdb_stdlog, "lookup_symbol_aux (...) = %s\n", | |
d12307c1 | 2130 | host_address_to_string (result.symbol)); |
cc485e62 | 2131 | } |
d12307c1 | 2132 | return result; |
cc485e62 | 2133 | } |
c906108c | 2134 | |
774b6a14 TT |
2135 | /* Now search all static file-level symbols. Not strictly correct, |
2136 | but more useful than an error. */ | |
41f62f39 | 2137 | |
d12307c1 | 2138 | result = lookup_static_symbol (name, domain); |
cc485e62 DE |
2139 | if (symbol_lookup_debug) |
2140 | { | |
2141 | fprintf_unfiltered (gdb_stdlog, "lookup_symbol_aux (...) = %s\n", | |
d12307c1 PMR |
2142 | result.symbol != NULL |
2143 | ? host_address_to_string (result.symbol) | |
2144 | : "NULL"); | |
cc485e62 | 2145 | } |
d12307c1 | 2146 | return result; |
41f62f39 JK |
2147 | } |
2148 | ||
e4051eeb | 2149 | /* Check to see if the symbol is defined in BLOCK or its superiors. |
89a9d1b1 | 2150 | Don't search STATIC_BLOCK or GLOBAL_BLOCK. */ |
8155455b | 2151 | |
d12307c1 | 2152 | static struct block_symbol |
de63c46b PA |
2153 | lookup_local_symbol (const char *name, |
2154 | symbol_name_match_type match_type, | |
2155 | const struct block *block, | |
74016e12 DE |
2156 | const domain_enum domain, |
2157 | enum language language) | |
8155455b DC |
2158 | { |
2159 | struct symbol *sym; | |
89a9d1b1 | 2160 | const struct block *static_block = block_static_block (block); |
13387711 SW |
2161 | const char *scope = block_scope (block); |
2162 | ||
e4051eeb DC |
2163 | /* Check if either no block is specified or it's a global block. */ |
2164 | ||
89a9d1b1 | 2165 | if (static_block == NULL) |
6640a367 | 2166 | return {}; |
e4051eeb | 2167 | |
89a9d1b1 | 2168 | while (block != static_block) |
f61e8913 | 2169 | { |
de63c46b | 2170 | sym = lookup_symbol_in_block (name, match_type, block, domain); |
f61e8913 | 2171 | if (sym != NULL) |
d12307c1 | 2172 | return (struct block_symbol) {sym, block}; |
edb3359d | 2173 | |
f55ee35c | 2174 | if (language == language_cplus || language == language_fortran) |
dda83cd7 SM |
2175 | { |
2176 | struct block_symbol blocksym | |
d12307c1 PMR |
2177 | = cp_lookup_symbol_imports_or_template (scope, name, block, |
2178 | domain); | |
2179 | ||
dda83cd7 SM |
2180 | if (blocksym.symbol != NULL) |
2181 | return blocksym; | |
2182 | } | |
13387711 | 2183 | |
edb3359d DJ |
2184 | if (BLOCK_FUNCTION (block) != NULL && block_inlined_p (block)) |
2185 | break; | |
f61e8913 DC |
2186 | block = BLOCK_SUPERBLOCK (block); |
2187 | } | |
2188 | ||
3aee438b | 2189 | /* We've reached the end of the function without finding a result. */ |
e4051eeb | 2190 | |
6640a367 | 2191 | return {}; |
f61e8913 DC |
2192 | } |
2193 | ||
cf901d3b | 2194 | /* See symtab.h. */ |
3a40aaa0 | 2195 | |
5f9a71c3 | 2196 | struct symbol * |
de63c46b PA |
2197 | lookup_symbol_in_block (const char *name, symbol_name_match_type match_type, |
2198 | const struct block *block, | |
d1a2d36d | 2199 | const domain_enum domain) |
f61e8913 DC |
2200 | { |
2201 | struct symbol *sym; | |
f61e8913 | 2202 | |
cc485e62 DE |
2203 | if (symbol_lookup_debug > 1) |
2204 | { | |
d6bc0792 TT |
2205 | struct objfile *objfile = (block == nullptr |
2206 | ? nullptr : block_objfile (block)); | |
cc485e62 DE |
2207 | |
2208 | fprintf_unfiltered (gdb_stdlog, | |
2209 | "lookup_symbol_in_block (%s, %s (objfile %s), %s)", | |
2210 | name, host_address_to_string (block), | |
2211 | objfile_debug_name (objfile), | |
2212 | domain_name (domain)); | |
2213 | } | |
2214 | ||
de63c46b | 2215 | sym = block_lookup_symbol (block, name, match_type, domain); |
f61e8913 | 2216 | if (sym) |
8155455b | 2217 | { |
cc485e62 DE |
2218 | if (symbol_lookup_debug > 1) |
2219 | { | |
2220 | fprintf_unfiltered (gdb_stdlog, " = %s\n", | |
2221 | host_address_to_string (sym)); | |
2222 | } | |
21b556f4 | 2223 | return fixup_symbol_section (sym, NULL); |
8155455b DC |
2224 | } |
2225 | ||
cc485e62 DE |
2226 | if (symbol_lookup_debug > 1) |
2227 | fprintf_unfiltered (gdb_stdlog, " = NULL\n"); | |
8155455b DC |
2228 | return NULL; |
2229 | } | |
2230 | ||
cf901d3b | 2231 | /* See symtab.h. */ |
3a40aaa0 | 2232 | |
d12307c1 | 2233 | struct block_symbol |
efad9b6a | 2234 | lookup_global_symbol_from_objfile (struct objfile *main_objfile, |
442853af | 2235 | enum block_enum block_index, |
3a40aaa0 | 2236 | const char *name, |
21b556f4 | 2237 | const domain_enum domain) |
3a40aaa0 | 2238 | { |
442853af CB |
2239 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2240 | ||
bde09ab7 | 2241 | for (objfile *objfile : main_objfile->separate_debug_objfiles ()) |
15d123c9 | 2242 | { |
d12307c1 | 2243 | struct block_symbol result |
dda83cd7 | 2244 | = lookup_symbol_in_objfile (objfile, block_index, name, domain); |
15d123c9 | 2245 | |
442853af | 2246 | if (result.symbol != nullptr) |
d12307c1 | 2247 | return result; |
15d123c9 | 2248 | } |
56e3f43c | 2249 | |
6640a367 | 2250 | return {}; |
3a40aaa0 UW |
2251 | } |
2252 | ||
19630284 JB |
2253 | /* Check to see if the symbol is defined in one of the OBJFILE's |
2254 | symtabs. BLOCK_INDEX should be either GLOBAL_BLOCK or STATIC_BLOCK, | |
8155455b DC |
2255 | depending on whether or not we want to search global symbols or |
2256 | static symbols. */ | |
2257 | ||
d12307c1 | 2258 | static struct block_symbol |
c32e6a04 CB |
2259 | lookup_symbol_in_objfile_symtabs (struct objfile *objfile, |
2260 | enum block_enum block_index, const char *name, | |
2261 | const domain_enum domain) | |
19630284 | 2262 | { |
ba715d7f JK |
2263 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2264 | ||
cc485e62 DE |
2265 | if (symbol_lookup_debug > 1) |
2266 | { | |
2267 | fprintf_unfiltered (gdb_stdlog, | |
2268 | "lookup_symbol_in_objfile_symtabs (%s, %s, %s, %s)", | |
2269 | objfile_debug_name (objfile), | |
2270 | block_index == GLOBAL_BLOCK | |
2271 | ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
2272 | name, domain_name (domain)); | |
2273 | } | |
2274 | ||
de82891c TV |
2275 | struct block_symbol other; |
2276 | other.symbol = NULL; | |
b669c953 | 2277 | for (compunit_symtab *cust : objfile->compunits ()) |
a743abeb | 2278 | { |
43f3e411 DE |
2279 | const struct blockvector *bv; |
2280 | const struct block *block; | |
d12307c1 | 2281 | struct block_symbol result; |
43f3e411 DE |
2282 | |
2283 | bv = COMPUNIT_BLOCKVECTOR (cust); | |
a743abeb | 2284 | block = BLOCKVECTOR_BLOCK (bv, block_index); |
d12307c1 PMR |
2285 | result.symbol = block_lookup_symbol_primary (block, name, domain); |
2286 | result.block = block; | |
de82891c TV |
2287 | if (result.symbol == NULL) |
2288 | continue; | |
2289 | if (best_symbol (result.symbol, domain)) | |
a743abeb | 2290 | { |
de82891c TV |
2291 | other = result; |
2292 | break; | |
2293 | } | |
2294 | if (symbol_matches_domain (result.symbol->language (), | |
2295 | SYMBOL_DOMAIN (result.symbol), domain)) | |
2296 | { | |
2297 | struct symbol *better | |
2298 | = better_symbol (other.symbol, result.symbol, domain); | |
2299 | if (better != other.symbol) | |
cc485e62 | 2300 | { |
de82891c TV |
2301 | other.symbol = better; |
2302 | other.block = block; | |
cc485e62 | 2303 | } |
de82891c TV |
2304 | } |
2305 | } | |
d12307c1 | 2306 | |
de82891c TV |
2307 | if (other.symbol != NULL) |
2308 | { | |
2309 | if (symbol_lookup_debug > 1) | |
2310 | { | |
2311 | fprintf_unfiltered (gdb_stdlog, " = %s (block %s)\n", | |
2312 | host_address_to_string (other.symbol), | |
2313 | host_address_to_string (other.block)); | |
a743abeb | 2314 | } |
de82891c TV |
2315 | other.symbol = fixup_symbol_section (other.symbol, objfile); |
2316 | return other; | |
a743abeb | 2317 | } |
19630284 | 2318 | |
cc485e62 DE |
2319 | if (symbol_lookup_debug > 1) |
2320 | fprintf_unfiltered (gdb_stdlog, " = NULL\n"); | |
6640a367 | 2321 | return {}; |
19630284 JB |
2322 | } |
2323 | ||
74016e12 | 2324 | /* Wrapper around lookup_symbol_in_objfile_symtabs for search_symbols. |
422d65e7 | 2325 | Look up LINKAGE_NAME in DOMAIN in the global and static blocks of OBJFILE |
01465b56 DE |
2326 | and all associated separate debug objfiles. |
2327 | ||
2328 | Normally we only look in OBJFILE, and not any separate debug objfiles | |
2329 | because the outer loop will cause them to be searched too. This case is | |
2330 | different. Here we're called from search_symbols where it will only | |
6471e7d2 | 2331 | call us for the objfile that contains a matching minsym. */ |
422d65e7 | 2332 | |
d12307c1 | 2333 | static struct block_symbol |
422d65e7 DE |
2334 | lookup_symbol_in_objfile_from_linkage_name (struct objfile *objfile, |
2335 | const char *linkage_name, | |
2336 | domain_enum domain) | |
2337 | { | |
2338 | enum language lang = current_language->la_language; | |
e9ad22ee | 2339 | struct objfile *main_objfile; |
422d65e7 | 2340 | |
2f408ecb PA |
2341 | demangle_result_storage storage; |
2342 | const char *modified_name = demangle_for_lookup (linkage_name, lang, storage); | |
2343 | ||
422d65e7 DE |
2344 | if (objfile->separate_debug_objfile_backlink) |
2345 | main_objfile = objfile->separate_debug_objfile_backlink; | |
2346 | else | |
2347 | main_objfile = objfile; | |
2348 | ||
bde09ab7 | 2349 | for (::objfile *cur_objfile : main_objfile->separate_debug_objfiles ()) |
422d65e7 | 2350 | { |
d12307c1 PMR |
2351 | struct block_symbol result; |
2352 | ||
2353 | result = lookup_symbol_in_objfile_symtabs (cur_objfile, GLOBAL_BLOCK, | |
2354 | modified_name, domain); | |
2355 | if (result.symbol == NULL) | |
2356 | result = lookup_symbol_in_objfile_symtabs (cur_objfile, STATIC_BLOCK, | |
2357 | modified_name, domain); | |
2358 | if (result.symbol != NULL) | |
2f408ecb | 2359 | return result; |
422d65e7 DE |
2360 | } |
2361 | ||
6640a367 | 2362 | return {}; |
422d65e7 DE |
2363 | } |
2364 | ||
08c23b0d TT |
2365 | /* A helper function that throws an exception when a symbol was found |
2366 | in a psymtab but not in a symtab. */ | |
2367 | ||
2368 | static void ATTRIBUTE_NORETURN | |
ddbcedf5 | 2369 | error_in_psymtab_expansion (enum block_enum block_index, const char *name, |
43f3e411 | 2370 | struct compunit_symtab *cust) |
08c23b0d TT |
2371 | { |
2372 | error (_("\ | |
2373 | Internal: %s symbol `%s' found in %s psymtab but not in symtab.\n\ | |
2374 | %s may be an inlined function, or may be a template function\n \ | |
2375 | (if a template, try specifying an instantiation: %s<type>)."), | |
f88cb4b6 | 2376 | block_index == GLOBAL_BLOCK ? "global" : "static", |
43f3e411 DE |
2377 | name, |
2378 | symtab_to_filename_for_display (compunit_primary_filetab (cust)), | |
2379 | name, name); | |
08c23b0d TT |
2380 | } |
2381 | ||
74016e12 DE |
2382 | /* A helper function for various lookup routines that interfaces with |
2383 | the "quick" symbol table functions. */ | |
8155455b | 2384 | |
d12307c1 | 2385 | static struct block_symbol |
ddbcedf5 CB |
2386 | lookup_symbol_via_quick_fns (struct objfile *objfile, |
2387 | enum block_enum block_index, const char *name, | |
2388 | const domain_enum domain) | |
8155455b | 2389 | { |
43f3e411 | 2390 | struct compunit_symtab *cust; |
346d1dfe | 2391 | const struct blockvector *bv; |
8155455b | 2392 | const struct block *block; |
d12307c1 | 2393 | struct block_symbol result; |
8155455b | 2394 | |
cc485e62 DE |
2395 | if (symbol_lookup_debug > 1) |
2396 | { | |
2397 | fprintf_unfiltered (gdb_stdlog, | |
2398 | "lookup_symbol_via_quick_fns (%s, %s, %s, %s)\n", | |
2399 | objfile_debug_name (objfile), | |
2400 | block_index == GLOBAL_BLOCK | |
2401 | ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
2402 | name, domain_name (domain)); | |
2403 | } | |
2404 | ||
4d080b46 | 2405 | cust = objfile->lookup_symbol (block_index, name, domain); |
43f3e411 | 2406 | if (cust == NULL) |
cc485e62 DE |
2407 | { |
2408 | if (symbol_lookup_debug > 1) | |
2409 | { | |
2410 | fprintf_unfiltered (gdb_stdlog, | |
2411 | "lookup_symbol_via_quick_fns (...) = NULL\n"); | |
2412 | } | |
6640a367 | 2413 | return {}; |
cc485e62 | 2414 | } |
8155455b | 2415 | |
43f3e411 | 2416 | bv = COMPUNIT_BLOCKVECTOR (cust); |
f88cb4b6 | 2417 | block = BLOCKVECTOR_BLOCK (bv, block_index); |
de63c46b PA |
2418 | result.symbol = block_lookup_symbol (block, name, |
2419 | symbol_name_match_type::FULL, domain); | |
d12307c1 | 2420 | if (result.symbol == NULL) |
43f3e411 | 2421 | error_in_psymtab_expansion (block_index, name, cust); |
cc485e62 DE |
2422 | |
2423 | if (symbol_lookup_debug > 1) | |
2424 | { | |
2425 | fprintf_unfiltered (gdb_stdlog, | |
2426 | "lookup_symbol_via_quick_fns (...) = %s (block %s)\n", | |
d12307c1 | 2427 | host_address_to_string (result.symbol), |
cc485e62 DE |
2428 | host_address_to_string (block)); |
2429 | } | |
2430 | ||
d12307c1 PMR |
2431 | result.symbol = fixup_symbol_section (result.symbol, objfile); |
2432 | result.block = block; | |
2433 | return result; | |
8155455b DC |
2434 | } |
2435 | ||
a78a19b1 | 2436 | /* See language.h. */ |
5f9a71c3 | 2437 | |
d12307c1 | 2438 | struct block_symbol |
a78a19b1 AB |
2439 | language_defn::lookup_symbol_nonlocal (const char *name, |
2440 | const struct block *block, | |
2441 | const domain_enum domain) const | |
5f9a71c3 | 2442 | { |
d12307c1 | 2443 | struct block_symbol result; |
5f9a71c3 | 2444 | |
d9060ba6 DE |
2445 | /* NOTE: dje/2014-10-26: The lookup in all objfiles search could skip |
2446 | the current objfile. Searching the current objfile first is useful | |
2447 | for both matching user expectations as well as performance. */ | |
2448 | ||
d12307c1 PMR |
2449 | result = lookup_symbol_in_static_block (name, block, domain); |
2450 | if (result.symbol != NULL) | |
2451 | return result; | |
5f9a71c3 | 2452 | |
1994afbf DE |
2453 | /* If we didn't find a definition for a builtin type in the static block, |
2454 | search for it now. This is actually the right thing to do and can be | |
2455 | a massive performance win. E.g., when debugging a program with lots of | |
2456 | shared libraries we could search all of them only to find out the | |
2457 | builtin type isn't defined in any of them. This is common for types | |
2458 | like "void". */ | |
2459 | if (domain == VAR_DOMAIN) | |
2460 | { | |
2461 | struct gdbarch *gdbarch; | |
2462 | ||
2463 | if (block == NULL) | |
2464 | gdbarch = target_gdbarch (); | |
2465 | else | |
2466 | gdbarch = block_gdbarch (block); | |
a78a19b1 | 2467 | result.symbol = language_lookup_primitive_type_as_symbol (this, |
d12307c1 PMR |
2468 | gdbarch, name); |
2469 | result.block = NULL; | |
2470 | if (result.symbol != NULL) | |
2471 | return result; | |
1994afbf DE |
2472 | } |
2473 | ||
08724ab7 | 2474 | return lookup_global_symbol (name, block, domain); |
5f9a71c3 DC |
2475 | } |
2476 | ||
cf901d3b | 2477 | /* See symtab.h. */ |
5f9a71c3 | 2478 | |
d12307c1 | 2479 | struct block_symbol |
24d864bb DE |
2480 | lookup_symbol_in_static_block (const char *name, |
2481 | const struct block *block, | |
2482 | const domain_enum domain) | |
5f9a71c3 DC |
2483 | { |
2484 | const struct block *static_block = block_static_block (block); | |
cc485e62 | 2485 | struct symbol *sym; |
5f9a71c3 | 2486 | |
cc485e62 | 2487 | if (static_block == NULL) |
6640a367 | 2488 | return {}; |
cc485e62 DE |
2489 | |
2490 | if (symbol_lookup_debug) | |
2491 | { | |
d6bc0792 TT |
2492 | struct objfile *objfile = (block == nullptr |
2493 | ? nullptr : block_objfile (block)); | |
cc485e62 DE |
2494 | |
2495 | fprintf_unfiltered (gdb_stdlog, | |
2496 | "lookup_symbol_in_static_block (%s, %s (objfile %s)," | |
2497 | " %s)\n", | |
2498 | name, | |
2499 | host_address_to_string (block), | |
2500 | objfile_debug_name (objfile), | |
2501 | domain_name (domain)); | |
2502 | } | |
2503 | ||
de63c46b PA |
2504 | sym = lookup_symbol_in_block (name, |
2505 | symbol_name_match_type::FULL, | |
2506 | static_block, domain); | |
cc485e62 DE |
2507 | if (symbol_lookup_debug) |
2508 | { | |
2509 | fprintf_unfiltered (gdb_stdlog, | |
2510 | "lookup_symbol_in_static_block (...) = %s\n", | |
2511 | sym != NULL ? host_address_to_string (sym) : "NULL"); | |
2512 | } | |
d12307c1 | 2513 | return (struct block_symbol) {sym, static_block}; |
5f9a71c3 DC |
2514 | } |
2515 | ||
af3768e9 DE |
2516 | /* Perform the standard symbol lookup of NAME in OBJFILE: |
2517 | 1) First search expanded symtabs, and if not found | |
2518 | 2) Search the "quick" symtabs (partial or .gdb_index). | |
2519 | BLOCK_INDEX is one of GLOBAL_BLOCK or STATIC_BLOCK. */ | |
2520 | ||
d12307c1 | 2521 | static struct block_symbol |
c32e6a04 | 2522 | lookup_symbol_in_objfile (struct objfile *objfile, enum block_enum block_index, |
af3768e9 DE |
2523 | const char *name, const domain_enum domain) |
2524 | { | |
d12307c1 | 2525 | struct block_symbol result; |
af3768e9 | 2526 | |
c32e6a04 CB |
2527 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2528 | ||
cc485e62 DE |
2529 | if (symbol_lookup_debug) |
2530 | { | |
2531 | fprintf_unfiltered (gdb_stdlog, | |
2532 | "lookup_symbol_in_objfile (%s, %s, %s, %s)\n", | |
2533 | objfile_debug_name (objfile), | |
2534 | block_index == GLOBAL_BLOCK | |
2535 | ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
2536 | name, domain_name (domain)); | |
2537 | } | |
2538 | ||
af3768e9 DE |
2539 | result = lookup_symbol_in_objfile_symtabs (objfile, block_index, |
2540 | name, domain); | |
d12307c1 | 2541 | if (result.symbol != NULL) |
af3768e9 | 2542 | { |
cc485e62 DE |
2543 | if (symbol_lookup_debug) |
2544 | { | |
2545 | fprintf_unfiltered (gdb_stdlog, | |
2546 | "lookup_symbol_in_objfile (...) = %s" | |
2547 | " (in symtabs)\n", | |
d12307c1 | 2548 | host_address_to_string (result.symbol)); |
cc485e62 DE |
2549 | } |
2550 | return result; | |
af3768e9 DE |
2551 | } |
2552 | ||
cc485e62 DE |
2553 | result = lookup_symbol_via_quick_fns (objfile, block_index, |
2554 | name, domain); | |
2555 | if (symbol_lookup_debug) | |
2556 | { | |
2557 | fprintf_unfiltered (gdb_stdlog, | |
2558 | "lookup_symbol_in_objfile (...) = %s%s\n", | |
d12307c1 PMR |
2559 | result.symbol != NULL |
2560 | ? host_address_to_string (result.symbol) | |
cc485e62 | 2561 | : "NULL", |
d12307c1 | 2562 | result.symbol != NULL ? " (via quick fns)" : ""); |
cc485e62 | 2563 | } |
af3768e9 DE |
2564 | return result; |
2565 | } | |
2566 | ||
d3214198 TV |
2567 | /* Find the language for partial symbol with NAME. */ |
2568 | ||
2569 | static enum language | |
2570 | find_quick_global_symbol_language (const char *name, const domain_enum domain) | |
2571 | { | |
d3214198 TV |
2572 | for (objfile *objfile : current_program_space->objfiles ()) |
2573 | { | |
2574 | bool symbol_found_p; | |
2575 | enum language lang | |
4d080b46 TT |
2576 | = objfile->lookup_global_symbol_language (name, domain, &symbol_found_p); |
2577 | if (symbol_found_p) | |
2578 | return lang; | |
d3214198 TV |
2579 | } |
2580 | ||
2581 | return language_unknown; | |
2582 | } | |
2583 | ||
19630284 JB |
2584 | /* Private data to be used with lookup_symbol_global_iterator_cb. */ |
2585 | ||
9aa55206 | 2586 | struct global_or_static_sym_lookup_data |
19630284 JB |
2587 | { |
2588 | /* The name of the symbol we are searching for. */ | |
2589 | const char *name; | |
2590 | ||
2591 | /* The domain to use for our search. */ | |
2592 | domain_enum domain; | |
2593 | ||
9aa55206 CB |
2594 | /* The block index in which to search. */ |
2595 | enum block_enum block_index; | |
2596 | ||
19630284 | 2597 | /* The field where the callback should store the symbol if found. |
d12307c1 PMR |
2598 | It should be initialized to {NULL, NULL} before the search is started. */ |
2599 | struct block_symbol result; | |
19630284 JB |
2600 | }; |
2601 | ||
2602 | /* A callback function for gdbarch_iterate_over_objfiles_in_search_order. | |
9aa55206 CB |
2603 | It searches by name for a symbol in the block given by BLOCK_INDEX of the |
2604 | given OBJFILE. The arguments for the search are passed via CB_DATA, which | |
2605 | in reality is a pointer to struct global_or_static_sym_lookup_data. */ | |
19630284 JB |
2606 | |
2607 | static int | |
9aa55206 CB |
2608 | lookup_symbol_global_or_static_iterator_cb (struct objfile *objfile, |
2609 | void *cb_data) | |
19630284 | 2610 | { |
9aa55206 CB |
2611 | struct global_or_static_sym_lookup_data *data = |
2612 | (struct global_or_static_sym_lookup_data *) cb_data; | |
19630284 | 2613 | |
d12307c1 PMR |
2614 | gdb_assert (data->result.symbol == NULL |
2615 | && data->result.block == NULL); | |
19630284 | 2616 | |
9aa55206 | 2617 | data->result = lookup_symbol_in_objfile (objfile, data->block_index, |
af3768e9 | 2618 | data->name, data->domain); |
19630284 JB |
2619 | |
2620 | /* If we found a match, tell the iterator to stop. Otherwise, | |
2621 | keep going. */ | |
d12307c1 | 2622 | return (data->result.symbol != NULL); |
19630284 JB |
2623 | } |
2624 | ||
9aa55206 CB |
2625 | /* This function contains the common code of lookup_{global,static}_symbol. |
2626 | OBJFILE is only used if BLOCK_INDEX is GLOBAL_SCOPE, in which case it is | |
2627 | the objfile to start the lookup in. */ | |
5f9a71c3 | 2628 | |
9aa55206 CB |
2629 | static struct block_symbol |
2630 | lookup_global_or_static_symbol (const char *name, | |
2631 | enum block_enum block_index, | |
2632 | struct objfile *objfile, | |
2633 | const domain_enum domain) | |
5f9a71c3 | 2634 | { |
f57d2163 | 2635 | struct symbol_cache *cache = get_symbol_cache (current_program_space); |
d12307c1 | 2636 | struct block_symbol result; |
9aa55206 | 2637 | struct global_or_static_sym_lookup_data lookup_data; |
f57d2163 DE |
2638 | struct block_symbol_cache *bsc; |
2639 | struct symbol_cache_slot *slot; | |
b2fb95e0 | 2640 | |
9aa55206 CB |
2641 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2642 | gdb_assert (objfile == nullptr || block_index == GLOBAL_BLOCK); | |
f57d2163 DE |
2643 | |
2644 | /* First see if we can find the symbol in the cache. | |
2645 | This works because we use the current objfile to qualify the lookup. */ | |
9aa55206 | 2646 | result = symbol_cache_lookup (cache, objfile, block_index, name, domain, |
d12307c1 PMR |
2647 | &bsc, &slot); |
2648 | if (result.symbol != NULL) | |
f57d2163 | 2649 | { |
d12307c1 | 2650 | if (SYMBOL_LOOKUP_FAILED_P (result)) |
6640a367 | 2651 | return {}; |
d12307c1 | 2652 | return result; |
f57d2163 DE |
2653 | } |
2654 | ||
626ca2c0 | 2655 | /* Do a global search (of global blocks, heh). */ |
d12307c1 | 2656 | if (result.symbol == NULL) |
f57d2163 DE |
2657 | { |
2658 | memset (&lookup_data, 0, sizeof (lookup_data)); | |
2659 | lookup_data.name = name; | |
9aa55206 | 2660 | lookup_data.block_index = block_index; |
f57d2163 DE |
2661 | lookup_data.domain = domain; |
2662 | gdbarch_iterate_over_objfiles_in_search_order | |
08feed99 | 2663 | (objfile != NULL ? objfile->arch () : target_gdbarch (), |
9aa55206 | 2664 | lookup_symbol_global_or_static_iterator_cb, &lookup_data, objfile); |
d12307c1 | 2665 | result = lookup_data.result; |
f57d2163 | 2666 | } |
6a3ca067 | 2667 | |
d12307c1 PMR |
2668 | if (result.symbol != NULL) |
2669 | symbol_cache_mark_found (bsc, slot, objfile, result.symbol, result.block); | |
f57d2163 DE |
2670 | else |
2671 | symbol_cache_mark_not_found (bsc, slot, objfile, name, domain); | |
2672 | ||
d12307c1 | 2673 | return result; |
5f9a71c3 DC |
2674 | } |
2675 | ||
9aa55206 CB |
2676 | /* See symtab.h. */ |
2677 | ||
2678 | struct block_symbol | |
2679 | lookup_static_symbol (const char *name, const domain_enum domain) | |
2680 | { | |
2681 | return lookup_global_or_static_symbol (name, STATIC_BLOCK, nullptr, domain); | |
2682 | } | |
2683 | ||
2684 | /* See symtab.h. */ | |
2685 | ||
2686 | struct block_symbol | |
2687 | lookup_global_symbol (const char *name, | |
2688 | const struct block *block, | |
2689 | const domain_enum domain) | |
2690 | { | |
d3d32391 AB |
2691 | /* If a block was passed in, we want to search the corresponding |
2692 | global block first. This yields "more expected" behavior, and is | |
2693 | needed to support 'FILENAME'::VARIABLE lookups. */ | |
2694 | const struct block *global_block = block_global_block (block); | |
70bc38f5 | 2695 | symbol *sym = NULL; |
d3d32391 AB |
2696 | if (global_block != nullptr) |
2697 | { | |
70bc38f5 TV |
2698 | sym = lookup_symbol_in_block (name, |
2699 | symbol_name_match_type::FULL, | |
2700 | global_block, domain); | |
2701 | if (sym != NULL && best_symbol (sym, domain)) | |
d3d32391 AB |
2702 | return { sym, global_block }; |
2703 | } | |
2704 | ||
d6bc0792 TT |
2705 | struct objfile *objfile = nullptr; |
2706 | if (block != nullptr) | |
2707 | { | |
2708 | objfile = block_objfile (block); | |
2709 | if (objfile->separate_debug_objfile_backlink != nullptr) | |
2710 | objfile = objfile->separate_debug_objfile_backlink; | |
2711 | } | |
2712 | ||
70bc38f5 TV |
2713 | block_symbol bs |
2714 | = lookup_global_or_static_symbol (name, GLOBAL_BLOCK, objfile, domain); | |
2715 | if (better_symbol (sym, bs.symbol, domain) == sym) | |
2716 | return { sym, global_block }; | |
2717 | else | |
2718 | return bs; | |
9aa55206 CB |
2719 | } |
2720 | ||
ececd218 | 2721 | bool |
4186eb54 KS |
2722 | symbol_matches_domain (enum language symbol_language, |
2723 | domain_enum symbol_domain, | |
2724 | domain_enum domain) | |
2725 | { | |
2726 | /* For C++ "struct foo { ... }" also defines a typedef for "foo". | |
4186eb54 KS |
2727 | Similarly, any Ada type declaration implicitly defines a typedef. */ |
2728 | if (symbol_language == language_cplus | |
2729 | || symbol_language == language_d | |
65547233 TT |
2730 | || symbol_language == language_ada |
2731 | || symbol_language == language_rust) | |
4186eb54 KS |
2732 | { |
2733 | if ((domain == VAR_DOMAIN || domain == STRUCT_DOMAIN) | |
2734 | && symbol_domain == STRUCT_DOMAIN) | |
ececd218 | 2735 | return true; |
4186eb54 KS |
2736 | } |
2737 | /* For all other languages, strict match is required. */ | |
2738 | return (symbol_domain == domain); | |
2739 | } | |
2740 | ||
cf901d3b | 2741 | /* See symtab.h. */ |
c906108c | 2742 | |
ccefe4c4 TT |
2743 | struct type * |
2744 | lookup_transparent_type (const char *name) | |
c906108c | 2745 | { |
54f4ca46 | 2746 | return current_language->lookup_transparent_type (name); |
ccefe4c4 | 2747 | } |
9af17804 | 2748 | |
ccefe4c4 TT |
2749 | /* A helper for basic_lookup_transparent_type that interfaces with the |
2750 | "quick" symbol table functions. */ | |
357e46e7 | 2751 | |
ccefe4c4 | 2752 | static struct type * |
ddbcedf5 CB |
2753 | basic_lookup_transparent_type_quick (struct objfile *objfile, |
2754 | enum block_enum block_index, | |
ccefe4c4 TT |
2755 | const char *name) |
2756 | { | |
43f3e411 | 2757 | struct compunit_symtab *cust; |
346d1dfe | 2758 | const struct blockvector *bv; |
582942f4 | 2759 | const struct block *block; |
ccefe4c4 | 2760 | struct symbol *sym; |
c906108c | 2761 | |
4d080b46 | 2762 | cust = objfile->lookup_symbol (block_index, name, STRUCT_DOMAIN); |
43f3e411 | 2763 | if (cust == NULL) |
ccefe4c4 | 2764 | return NULL; |
c906108c | 2765 | |
43f3e411 | 2766 | bv = COMPUNIT_BLOCKVECTOR (cust); |
f88cb4b6 | 2767 | block = BLOCKVECTOR_BLOCK (bv, block_index); |
b2e2f908 DE |
2768 | sym = block_find_symbol (block, name, STRUCT_DOMAIN, |
2769 | block_find_non_opaque_type, NULL); | |
2770 | if (sym == NULL) | |
43f3e411 | 2771 | error_in_psymtab_expansion (block_index, name, cust); |
b2e2f908 DE |
2772 | gdb_assert (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))); |
2773 | return SYMBOL_TYPE (sym); | |
2774 | } | |
08c23b0d | 2775 | |
b2e2f908 DE |
2776 | /* Subroutine of basic_lookup_transparent_type to simplify it. |
2777 | Look up the non-opaque definition of NAME in BLOCK_INDEX of OBJFILE. | |
2778 | BLOCK_INDEX is either GLOBAL_BLOCK or STATIC_BLOCK. */ | |
2779 | ||
2780 | static struct type * | |
ddbcedf5 CB |
2781 | basic_lookup_transparent_type_1 (struct objfile *objfile, |
2782 | enum block_enum block_index, | |
b2e2f908 DE |
2783 | const char *name) |
2784 | { | |
b2e2f908 DE |
2785 | const struct blockvector *bv; |
2786 | const struct block *block; | |
2787 | const struct symbol *sym; | |
2788 | ||
b669c953 | 2789 | for (compunit_symtab *cust : objfile->compunits ()) |
b2e2f908 DE |
2790 | { |
2791 | bv = COMPUNIT_BLOCKVECTOR (cust); | |
2792 | block = BLOCKVECTOR_BLOCK (bv, block_index); | |
2793 | sym = block_find_symbol (block, name, STRUCT_DOMAIN, | |
2794 | block_find_non_opaque_type, NULL); | |
2795 | if (sym != NULL) | |
2796 | { | |
2797 | gdb_assert (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))); | |
2798 | return SYMBOL_TYPE (sym); | |
2799 | } | |
2800 | } | |
c906108c | 2801 | |
ccefe4c4 | 2802 | return NULL; |
b368761e | 2803 | } |
c906108c | 2804 | |
b368761e DC |
2805 | /* The standard implementation of lookup_transparent_type. This code |
2806 | was modeled on lookup_symbol -- the parts not relevant to looking | |
2807 | up types were just left out. In particular it's assumed here that | |
cf901d3b | 2808 | types are available in STRUCT_DOMAIN and only in file-static or |
b368761e | 2809 | global blocks. */ |
c906108c SS |
2810 | |
2811 | struct type * | |
b368761e | 2812 | basic_lookup_transparent_type (const char *name) |
c906108c | 2813 | { |
ccefe4c4 | 2814 | struct type *t; |
c906108c SS |
2815 | |
2816 | /* Now search all the global symbols. Do the symtab's first, then | |
c378eb4e | 2817 | check the psymtab's. If a psymtab indicates the existence |
c906108c SS |
2818 | of the desired name as a global, then do psymtab-to-symtab |
2819 | conversion on the fly and return the found symbol. */ | |
c5aa993b | 2820 | |
2030c079 | 2821 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2822 | { |
2823 | t = basic_lookup_transparent_type_1 (objfile, GLOBAL_BLOCK, name); | |
2824 | if (t) | |
2825 | return t; | |
2826 | } | |
c906108c | 2827 | |
2030c079 | 2828 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2829 | { |
2830 | t = basic_lookup_transparent_type_quick (objfile, GLOBAL_BLOCK, name); | |
2831 | if (t) | |
2832 | return t; | |
2833 | } | |
c906108c SS |
2834 | |
2835 | /* Now search the static file-level symbols. | |
2836 | Not strictly correct, but more useful than an error. | |
2837 | Do the symtab's first, then | |
c378eb4e | 2838 | check the psymtab's. If a psymtab indicates the existence |
c906108c | 2839 | of the desired name as a file-level static, then do psymtab-to-symtab |
c378eb4e | 2840 | conversion on the fly and return the found symbol. */ |
c906108c | 2841 | |
2030c079 | 2842 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2843 | { |
2844 | t = basic_lookup_transparent_type_1 (objfile, STATIC_BLOCK, name); | |
2845 | if (t) | |
2846 | return t; | |
2847 | } | |
c906108c | 2848 | |
2030c079 | 2849 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2850 | { |
2851 | t = basic_lookup_transparent_type_quick (objfile, STATIC_BLOCK, name); | |
2852 | if (t) | |
2853 | return t; | |
2854 | } | |
ccefe4c4 | 2855 | |
c906108c SS |
2856 | return (struct type *) 0; |
2857 | } | |
2858 | ||
6969f124 | 2859 | /* See symtab.h. */ |
f8eba3c6 | 2860 | |
6969f124 | 2861 | bool |
b5ec771e PA |
2862 | iterate_over_symbols (const struct block *block, |
2863 | const lookup_name_info &name, | |
f8eba3c6 | 2864 | const domain_enum domain, |
14bc53a8 | 2865 | gdb::function_view<symbol_found_callback_ftype> callback) |
f8eba3c6 | 2866 | { |
4eeaa230 DE |
2867 | struct block_iterator iter; |
2868 | struct symbol *sym; | |
f8eba3c6 | 2869 | |
358d6ab3 | 2870 | ALL_BLOCK_SYMBOLS_WITH_NAME (block, name, iter, sym) |
4eeaa230 | 2871 | { |
c1b5c1eb | 2872 | if (symbol_matches_domain (sym->language (), SYMBOL_DOMAIN (sym), domain)) |
f8eba3c6 | 2873 | { |
7e41c8db KS |
2874 | struct block_symbol block_sym = {sym, block}; |
2875 | ||
2876 | if (!callback (&block_sym)) | |
6969f124 | 2877 | return false; |
f8eba3c6 | 2878 | } |
f8eba3c6 | 2879 | } |
6969f124 | 2880 | return true; |
f8eba3c6 TT |
2881 | } |
2882 | ||
6a3dbf1b TT |
2883 | /* See symtab.h. */ |
2884 | ||
2885 | bool | |
2886 | iterate_over_symbols_terminated | |
2887 | (const struct block *block, | |
2888 | const lookup_name_info &name, | |
2889 | const domain_enum domain, | |
2890 | gdb::function_view<symbol_found_callback_ftype> callback) | |
2891 | { | |
2892 | if (!iterate_over_symbols (block, name, domain, callback)) | |
2893 | return false; | |
2894 | struct block_symbol block_sym = {nullptr, block}; | |
2895 | return callback (&block_sym); | |
2896 | } | |
2897 | ||
43f3e411 DE |
2898 | /* Find the compunit symtab associated with PC and SECTION. |
2899 | This will read in debug info as necessary. */ | |
c906108c | 2900 | |
43f3e411 DE |
2901 | struct compunit_symtab * |
2902 | find_pc_sect_compunit_symtab (CORE_ADDR pc, struct obj_section *section) | |
c906108c | 2903 | { |
43f3e411 | 2904 | struct compunit_symtab *best_cust = NULL; |
61eb46a4 | 2905 | CORE_ADDR best_cust_range = 0; |
77e371c0 | 2906 | struct bound_minimal_symbol msymbol; |
8a48e967 DJ |
2907 | |
2908 | /* If we know that this is not a text address, return failure. This is | |
2909 | necessary because we loop based on the block's high and low code | |
2910 | addresses, which do not include the data ranges, and because | |
2911 | we call find_pc_sect_psymtab which has a similar restriction based | |
2912 | on the partial_symtab's texthigh and textlow. */ | |
77e371c0 | 2913 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); |
1ed9f74e | 2914 | if (msymbol.minsym && msymbol.minsym->data_p ()) |
8a48e967 | 2915 | return NULL; |
c906108c SS |
2916 | |
2917 | /* Search all symtabs for the one whose file contains our address, and which | |
2918 | is the smallest of all the ones containing the address. This is designed | |
2919 | to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000 | |
2920 | and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from | |
2921 | 0x1000-0x4000, but for address 0x2345 we want to return symtab b. | |
2922 | ||
2923 | This happens for native ecoff format, where code from included files | |
c378eb4e | 2924 | gets its own symtab. The symtab for the included file should have |
c906108c SS |
2925 | been read in already via the dependency mechanism. |
2926 | It might be swifter to create several symtabs with the same name | |
2927 | like xcoff does (I'm not sure). | |
2928 | ||
2929 | It also happens for objfiles that have their functions reordered. | |
2930 | For these, the symtab we are looking for is not necessarily read in. */ | |
2931 | ||
2030c079 | 2932 | for (objfile *obj_file : current_program_space->objfiles ()) |
d8aeb77f | 2933 | { |
b669c953 | 2934 | for (compunit_symtab *cust : obj_file->compunits ()) |
d8aeb77f | 2935 | { |
61eb46a4 TV |
2936 | const struct blockvector *bv = COMPUNIT_BLOCKVECTOR (cust); |
2937 | const struct block *global_block | |
2938 | = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
2939 | CORE_ADDR start = BLOCK_START (global_block); | |
2940 | CORE_ADDR end = BLOCK_END (global_block); | |
2941 | bool in_range_p = start <= pc && pc < end; | |
2942 | if (!in_range_p) | |
2943 | continue; | |
43f3e411 | 2944 | |
1b00ef06 TV |
2945 | if (BLOCKVECTOR_MAP (bv)) |
2946 | { | |
2947 | if (addrmap_find (BLOCKVECTOR_MAP (bv), pc) == nullptr) | |
2948 | continue; | |
2949 | ||
2950 | return cust; | |
2951 | } | |
2952 | ||
61eb46a4 TV |
2953 | CORE_ADDR range = end - start; |
2954 | if (best_cust != nullptr | |
2955 | && range >= best_cust_range) | |
2956 | /* Cust doesn't have a smaller range than best_cust, skip it. */ | |
2957 | continue; | |
2958 | ||
2959 | /* For an objfile that has its functions reordered, | |
2960 | find_pc_psymtab will find the proper partial symbol table | |
2961 | and we simply return its corresponding symtab. */ | |
2962 | /* In order to better support objfiles that contain both | |
2963 | stabs and coff debugging info, we continue on if a psymtab | |
2964 | can't be found. */ | |
4d080b46 | 2965 | if ((obj_file->flags & OBJF_REORDERED) != 0) |
61eb46a4 TV |
2966 | { |
2967 | struct compunit_symtab *result; | |
2968 | ||
2969 | result | |
4d080b46 TT |
2970 | = obj_file->find_pc_sect_compunit_symtab (msymbol, |
2971 | pc, | |
2972 | section, | |
2973 | 0); | |
61eb46a4 TV |
2974 | if (result != NULL) |
2975 | return result; | |
2976 | } | |
c906108c | 2977 | |
61eb46a4 | 2978 | if (section != 0) |
d8aeb77f | 2979 | { |
61eb46a4 TV |
2980 | struct symbol *sym = NULL; |
2981 | struct block_iterator iter; | |
2982 | ||
bd24c5d6 TV |
2983 | for (int b_index = GLOBAL_BLOCK; |
2984 | b_index <= STATIC_BLOCK && sym == NULL; | |
2985 | ++b_index) | |
d8aeb77f | 2986 | { |
bd24c5d6 TV |
2987 | const struct block *b = BLOCKVECTOR_BLOCK (bv, b_index); |
2988 | ALL_BLOCK_SYMBOLS (b, iter, sym) | |
2989 | { | |
2990 | fixup_symbol_section (sym, obj_file); | |
ebbc3a7d | 2991 | if (matching_obj_sections (sym->obj_section (obj_file), |
bd24c5d6 TV |
2992 | section)) |
2993 | break; | |
2994 | } | |
d8aeb77f | 2995 | } |
61eb46a4 TV |
2996 | if (sym == NULL) |
2997 | continue; /* No symbol in this symtab matches | |
d8aeb77f | 2998 | section. */ |
d8aeb77f | 2999 | } |
61eb46a4 TV |
3000 | |
3001 | /* Cust is best found sofar, save it. */ | |
3002 | best_cust = cust; | |
3003 | best_cust_range = range; | |
d8aeb77f TT |
3004 | } |
3005 | } | |
c906108c | 3006 | |
43f3e411 DE |
3007 | if (best_cust != NULL) |
3008 | return best_cust; | |
c906108c | 3009 | |
072cabfe DE |
3010 | /* Not found in symtabs, search the "quick" symtabs (e.g. psymtabs). */ |
3011 | ||
2030c079 | 3012 | for (objfile *objf : current_program_space->objfiles ()) |
aed57c53 | 3013 | { |
4d080b46 TT |
3014 | struct compunit_symtab *result |
3015 | = objf->find_pc_sect_compunit_symtab (msymbol, pc, section, 1); | |
aed57c53 TT |
3016 | if (result != NULL) |
3017 | return result; | |
3018 | } | |
ccefe4c4 TT |
3019 | |
3020 | return NULL; | |
c906108c SS |
3021 | } |
3022 | ||
43f3e411 DE |
3023 | /* Find the compunit symtab associated with PC. |
3024 | This will read in debug info as necessary. | |
3025 | Backward compatibility, no section. */ | |
c906108c | 3026 | |
43f3e411 DE |
3027 | struct compunit_symtab * |
3028 | find_pc_compunit_symtab (CORE_ADDR pc) | |
c906108c | 3029 | { |
43f3e411 | 3030 | return find_pc_sect_compunit_symtab (pc, find_pc_mapped_section (pc)); |
c906108c | 3031 | } |
71a3c369 TT |
3032 | |
3033 | /* See symtab.h. */ | |
3034 | ||
3035 | struct symbol * | |
3036 | find_symbol_at_address (CORE_ADDR address) | |
3037 | { | |
1f2624a3 TT |
3038 | /* A helper function to search a given symtab for a symbol matching |
3039 | ADDR. */ | |
3040 | auto search_symtab = [] (compunit_symtab *symtab, CORE_ADDR addr) -> symbol * | |
aed57c53 | 3041 | { |
1f2624a3 | 3042 | const struct blockvector *bv = COMPUNIT_BLOCKVECTOR (symtab); |
71a3c369 | 3043 | |
1f2624a3 | 3044 | for (int i = GLOBAL_BLOCK; i <= STATIC_BLOCK; ++i) |
aed57c53 | 3045 | { |
1f2624a3 TT |
3046 | const struct block *b = BLOCKVECTOR_BLOCK (bv, i); |
3047 | struct block_iterator iter; | |
3048 | struct symbol *sym; | |
71a3c369 | 3049 | |
1f2624a3 | 3050 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
71a3c369 | 3051 | { |
1f2624a3 TT |
3052 | if (SYMBOL_CLASS (sym) == LOC_STATIC |
3053 | && SYMBOL_VALUE_ADDRESS (sym) == addr) | |
3054 | return sym; | |
3055 | } | |
3056 | } | |
3057 | return nullptr; | |
3058 | }; | |
aed57c53 | 3059 | |
1f2624a3 TT |
3060 | for (objfile *objfile : current_program_space->objfiles ()) |
3061 | { | |
4d080b46 TT |
3062 | /* If this objfile was read with -readnow, then we need to |
3063 | search the symtabs directly. */ | |
3064 | if ((objfile->flags & OBJF_READNOW) != 0) | |
1f2624a3 TT |
3065 | { |
3066 | for (compunit_symtab *symtab : objfile->compunits ()) | |
3067 | { | |
3068 | struct symbol *sym = search_symtab (symtab, address); | |
3069 | if (sym != nullptr) | |
3070 | return sym; | |
3071 | } | |
3072 | } | |
3073 | else | |
3074 | { | |
3075 | struct compunit_symtab *symtab | |
4d080b46 | 3076 | = objfile->find_compunit_symtab_by_address (address); |
1f2624a3 TT |
3077 | if (symtab != NULL) |
3078 | { | |
3079 | struct symbol *sym = search_symtab (symtab, address); | |
3080 | if (sym != nullptr) | |
3081 | return sym; | |
71a3c369 | 3082 | } |
aed57c53 TT |
3083 | } |
3084 | } | |
71a3c369 TT |
3085 | |
3086 | return NULL; | |
3087 | } | |
3088 | ||
c906108c | 3089 | \f |
c5aa993b | 3090 | |
7e73cedf | 3091 | /* Find the source file and line number for a given PC value and SECTION. |
c906108c SS |
3092 | Return a structure containing a symtab pointer, a line number, |
3093 | and a pc range for the entire source line. | |
3094 | The value's .pc field is NOT the specified pc. | |
3095 | NOTCURRENT nonzero means, if specified pc is on a line boundary, | |
3096 | use the line that ends there. Otherwise, in that case, the line | |
3097 | that begins there is used. */ | |
3098 | ||
3099 | /* The big complication here is that a line may start in one file, and end just | |
3100 | before the start of another file. This usually occurs when you #include | |
3101 | code in the middle of a subroutine. To properly find the end of a line's PC | |
3102 | range, we must search all symtabs associated with this compilation unit, and | |
3103 | find the one whose first PC is closer than that of the next line in this | |
3104 | symtab. */ | |
3105 | ||
c906108c | 3106 | struct symtab_and_line |
714835d5 | 3107 | find_pc_sect_line (CORE_ADDR pc, struct obj_section *section, int notcurrent) |
c906108c | 3108 | { |
43f3e411 | 3109 | struct compunit_symtab *cust; |
52f0bd74 AC |
3110 | struct linetable *l; |
3111 | int len; | |
52f0bd74 | 3112 | struct linetable_entry *item; |
346d1dfe | 3113 | const struct blockvector *bv; |
7cbd4a93 | 3114 | struct bound_minimal_symbol msymbol; |
c906108c SS |
3115 | |
3116 | /* Info on best line seen so far, and where it starts, and its file. */ | |
3117 | ||
3118 | struct linetable_entry *best = NULL; | |
3119 | CORE_ADDR best_end = 0; | |
3120 | struct symtab *best_symtab = 0; | |
3121 | ||
3122 | /* Store here the first line number | |
3123 | of a file which contains the line at the smallest pc after PC. | |
3124 | If we don't find a line whose range contains PC, | |
3125 | we will use a line one less than this, | |
3126 | with a range from the start of that file to the first line's pc. */ | |
3127 | struct linetable_entry *alt = NULL; | |
c906108c SS |
3128 | |
3129 | /* Info on best line seen in this file. */ | |
3130 | ||
3131 | struct linetable_entry *prev; | |
3132 | ||
3133 | /* If this pc is not from the current frame, | |
3134 | it is the address of the end of a call instruction. | |
3135 | Quite likely that is the start of the following statement. | |
3136 | But what we want is the statement containing the instruction. | |
3137 | Fudge the pc to make sure we get that. */ | |
3138 | ||
b77b1eb7 JB |
3139 | /* It's tempting to assume that, if we can't find debugging info for |
3140 | any function enclosing PC, that we shouldn't search for line | |
3141 | number info, either. However, GAS can emit line number info for | |
3142 | assembly files --- very helpful when debugging hand-written | |
3143 | assembly code. In such a case, we'd have no debug info for the | |
3144 | function, but we would have line info. */ | |
648f4f79 | 3145 | |
c906108c SS |
3146 | if (notcurrent) |
3147 | pc -= 1; | |
3148 | ||
c5aa993b | 3149 | /* elz: added this because this function returned the wrong |
c906108c | 3150 | information if the pc belongs to a stub (import/export) |
c378eb4e | 3151 | to call a shlib function. This stub would be anywhere between |
9af17804 | 3152 | two functions in the target, and the line info was erroneously |
c378eb4e MS |
3153 | taken to be the one of the line before the pc. */ |
3154 | ||
c906108c | 3155 | /* RT: Further explanation: |
c5aa993b | 3156 | |
c906108c SS |
3157 | * We have stubs (trampolines) inserted between procedures. |
3158 | * | |
3159 | * Example: "shr1" exists in a shared library, and a "shr1" stub also | |
3160 | * exists in the main image. | |
3161 | * | |
3162 | * In the minimal symbol table, we have a bunch of symbols | |
c378eb4e | 3163 | * sorted by start address. The stubs are marked as "trampoline", |
c906108c SS |
3164 | * the others appear as text. E.g.: |
3165 | * | |
9af17804 | 3166 | * Minimal symbol table for main image |
c906108c SS |
3167 | * main: code for main (text symbol) |
3168 | * shr1: stub (trampoline symbol) | |
3169 | * foo: code for foo (text symbol) | |
3170 | * ... | |
3171 | * Minimal symbol table for "shr1" image: | |
3172 | * ... | |
3173 | * shr1: code for shr1 (text symbol) | |
3174 | * ... | |
3175 | * | |
3176 | * So the code below is trying to detect if we are in the stub | |
3177 | * ("shr1" stub), and if so, find the real code ("shr1" trampoline), | |
3178 | * and if found, do the symbolization from the real-code address | |
3179 | * rather than the stub address. | |
3180 | * | |
3181 | * Assumptions being made about the minimal symbol table: | |
3182 | * 1. lookup_minimal_symbol_by_pc() will return a trampoline only | |
c378eb4e | 3183 | * if we're really in the trampoline.s If we're beyond it (say |
9af17804 | 3184 | * we're in "foo" in the above example), it'll have a closer |
c906108c SS |
3185 | * symbol (the "foo" text symbol for example) and will not |
3186 | * return the trampoline. | |
3187 | * 2. lookup_minimal_symbol_text() will find a real text symbol | |
3188 | * corresponding to the trampoline, and whose address will | |
c378eb4e | 3189 | * be different than the trampoline address. I put in a sanity |
c906108c SS |
3190 | * check for the address being the same, to avoid an |
3191 | * infinite recursion. | |
3192 | */ | |
c5aa993b | 3193 | msymbol = lookup_minimal_symbol_by_pc (pc); |
7cbd4a93 TT |
3194 | if (msymbol.minsym != NULL) |
3195 | if (MSYMBOL_TYPE (msymbol.minsym) == mst_solib_trampoline) | |
c5aa993b | 3196 | { |
77e371c0 | 3197 | struct bound_minimal_symbol mfunsym |
c9d95fa3 | 3198 | = lookup_minimal_symbol_text (msymbol.minsym->linkage_name (), |
77e371c0 TT |
3199 | NULL); |
3200 | ||
3201 | if (mfunsym.minsym == NULL) | |
c5aa993b JM |
3202 | /* I eliminated this warning since it is coming out |
3203 | * in the following situation: | |
3204 | * gdb shmain // test program with shared libraries | |
3205 | * (gdb) break shr1 // function in shared lib | |
3206 | * Warning: In stub for ... | |
9af17804 | 3207 | * In the above situation, the shared lib is not loaded yet, |
c5aa993b JM |
3208 | * so of course we can't find the real func/line info, |
3209 | * but the "break" still works, and the warning is annoying. | |
c378eb4e | 3210 | * So I commented out the warning. RT */ |
3e43a32a | 3211 | /* warning ("In stub for %s; unable to find real function/line info", |
987012b8 | 3212 | msymbol->linkage_name ()); */ |
c378eb4e | 3213 | ; |
c5aa993b | 3214 | /* fall through */ |
77e371c0 TT |
3215 | else if (BMSYMBOL_VALUE_ADDRESS (mfunsym) |
3216 | == BMSYMBOL_VALUE_ADDRESS (msymbol)) | |
c5aa993b | 3217 | /* Avoid infinite recursion */ |
c378eb4e | 3218 | /* See above comment about why warning is commented out. */ |
3e43a32a | 3219 | /* warning ("In stub for %s; unable to find real function/line info", |
987012b8 | 3220 | msymbol->linkage_name ()); */ |
c378eb4e | 3221 | ; |
c5aa993b JM |
3222 | /* fall through */ |
3223 | else | |
dd69bf7a KB |
3224 | { |
3225 | /* Detect an obvious case of infinite recursion. If this | |
3226 | should occur, we'd like to know about it, so error out, | |
3227 | fatally. */ | |
3228 | if (BMSYMBOL_VALUE_ADDRESS (mfunsym) == pc) | |
3229 | internal_error (__FILE__, __LINE__, | |
dda83cd7 | 3230 | _("Infinite recursion detected in find_pc_sect_line;" |
dd69bf7a KB |
3231 | "please file a bug report")); |
3232 | ||
3233 | return find_pc_line (BMSYMBOL_VALUE_ADDRESS (mfunsym), 0); | |
3234 | } | |
c5aa993b | 3235 | } |
c906108c | 3236 | |
51abb421 PA |
3237 | symtab_and_line val; |
3238 | val.pspace = current_program_space; | |
c906108c | 3239 | |
43f3e411 DE |
3240 | cust = find_pc_sect_compunit_symtab (pc, section); |
3241 | if (cust == NULL) | |
c906108c | 3242 | { |
c378eb4e | 3243 | /* If no symbol information, return previous pc. */ |
c906108c SS |
3244 | if (notcurrent) |
3245 | pc++; | |
3246 | val.pc = pc; | |
3247 | return val; | |
3248 | } | |
3249 | ||
43f3e411 | 3250 | bv = COMPUNIT_BLOCKVECTOR (cust); |
c906108c SS |
3251 | |
3252 | /* Look at all the symtabs that share this blockvector. | |
3253 | They all have the same apriori range, that we found was right; | |
3254 | but they have different line tables. */ | |
3255 | ||
5accd1a0 | 3256 | for (symtab *iter_s : compunit_filetabs (cust)) |
c906108c SS |
3257 | { |
3258 | /* Find the best line in this symtab. */ | |
43f3e411 | 3259 | l = SYMTAB_LINETABLE (iter_s); |
c906108c | 3260 | if (!l) |
c5aa993b | 3261 | continue; |
c906108c SS |
3262 | len = l->nitems; |
3263 | if (len <= 0) | |
3264 | { | |
3265 | /* I think len can be zero if the symtab lacks line numbers | |
3266 | (e.g. gcc -g1). (Either that or the LINETABLE is NULL; | |
3267 | I'm not sure which, and maybe it depends on the symbol | |
3268 | reader). */ | |
3269 | continue; | |
3270 | } | |
3271 | ||
3272 | prev = NULL; | |
c378eb4e | 3273 | item = l->item; /* Get first line info. */ |
c906108c SS |
3274 | |
3275 | /* Is this file's first line closer than the first lines of other files? | |
dda83cd7 | 3276 | If so, record this file, and its first line, as best alternate. */ |
c906108c | 3277 | if (item->pc > pc && (!alt || item->pc < alt->pc)) |
c656bca5 | 3278 | alt = item; |
c906108c | 3279 | |
b926417a | 3280 | auto pc_compare = [](const CORE_ADDR & comp_pc, |
7cbe16e9 SR |
3281 | const struct linetable_entry & lhs)->bool |
3282 | { | |
b926417a | 3283 | return comp_pc < lhs.pc; |
7cbe16e9 | 3284 | }; |
c906108c | 3285 | |
7cbe16e9 SR |
3286 | struct linetable_entry *first = item; |
3287 | struct linetable_entry *last = item + len; | |
3288 | item = std::upper_bound (first, last, pc, pc_compare); | |
3289 | if (item != first) | |
d8cc8af6 | 3290 | prev = item - 1; /* Found a matching item. */ |
c906108c SS |
3291 | |
3292 | /* At this point, prev points at the line whose start addr is <= pc, and | |
dda83cd7 SM |
3293 | item points at the next line. If we ran off the end of the linetable |
3294 | (pc >= start of the last line), then prev == item. If pc < start of | |
3295 | the first line, prev will not be set. */ | |
c906108c SS |
3296 | |
3297 | /* Is this file's best line closer than the best in the other files? | |
dda83cd7 SM |
3298 | If so, record this file, and its best line, as best so far. Don't |
3299 | save prev if it represents the end of a function (i.e. line number | |
3300 | 0) instead of a real line. */ | |
c906108c | 3301 | |
083ae935 | 3302 | if (prev && prev->line && (!best || prev->pc > best->pc)) |
c906108c SS |
3303 | { |
3304 | best = prev; | |
43f3e411 | 3305 | best_symtab = iter_s; |
25d53da1 | 3306 | |
8c95582d AB |
3307 | /* If during the binary search we land on a non-statement entry, |
3308 | scan backward through entries at the same address to see if | |
3309 | there is an entry marked as is-statement. In theory this | |
3310 | duplication should have been removed from the line table | |
3311 | during construction, this is just a double check. If the line | |
3312 | table has had the duplication removed then this should be | |
3313 | pretty cheap. */ | |
3314 | if (!best->is_stmt) | |
3315 | { | |
3316 | struct linetable_entry *tmp = best; | |
3317 | while (tmp > first && (tmp - 1)->pc == tmp->pc | |
3318 | && (tmp - 1)->line != 0 && !tmp->is_stmt) | |
3319 | --tmp; | |
3320 | if (tmp->is_stmt) | |
3321 | best = tmp; | |
3322 | } | |
3323 | ||
25d53da1 KB |
3324 | /* Discard BEST_END if it's before the PC of the current BEST. */ |
3325 | if (best_end <= best->pc) | |
3326 | best_end = 0; | |
c906108c | 3327 | } |
25d53da1 KB |
3328 | |
3329 | /* If another line (denoted by ITEM) is in the linetable and its | |
7cbe16e9 | 3330 | PC is after BEST's PC, but before the current BEST_END, then |
25d53da1 | 3331 | use ITEM's PC as the new best_end. */ |
4ee89e90 | 3332 | if (best && item < last && item->pc > best->pc |
7cbe16e9 | 3333 | && (best_end == 0 || best_end > item->pc)) |
25d53da1 | 3334 | best_end = item->pc; |
c906108c SS |
3335 | } |
3336 | ||
3337 | if (!best_symtab) | |
3338 | { | |
e86e87f7 DJ |
3339 | /* If we didn't find any line number info, just return zeros. |
3340 | We used to return alt->line - 1 here, but that could be | |
3341 | anywhere; if we don't have line number info for this PC, | |
3342 | don't make some up. */ | |
3343 | val.pc = pc; | |
c906108c | 3344 | } |
e8717518 FF |
3345 | else if (best->line == 0) |
3346 | { | |
3347 | /* If our best fit is in a range of PC's for which no line | |
3348 | number info is available (line number is zero) then we didn't | |
c378eb4e | 3349 | find any valid line information. */ |
e8717518 FF |
3350 | val.pc = pc; |
3351 | } | |
c906108c SS |
3352 | else |
3353 | { | |
8c95582d | 3354 | val.is_stmt = best->is_stmt; |
c906108c SS |
3355 | val.symtab = best_symtab; |
3356 | val.line = best->line; | |
3357 | val.pc = best->pc; | |
3358 | if (best_end && (!alt || best_end < alt->pc)) | |
3359 | val.end = best_end; | |
3360 | else if (alt) | |
3361 | val.end = alt->pc; | |
3362 | else | |
3363 | val.end = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); | |
3364 | } | |
3365 | val.section = section; | |
3366 | return val; | |
3367 | } | |
3368 | ||
c378eb4e | 3369 | /* Backward compatibility (no section). */ |
c906108c SS |
3370 | |
3371 | struct symtab_and_line | |
fba45db2 | 3372 | find_pc_line (CORE_ADDR pc, int notcurrent) |
c906108c | 3373 | { |
714835d5 | 3374 | struct obj_section *section; |
c906108c SS |
3375 | |
3376 | section = find_pc_overlay (pc); | |
31a8f60f AB |
3377 | if (!pc_in_unmapped_range (pc, section)) |
3378 | return find_pc_sect_line (pc, section, notcurrent); | |
3379 | ||
3380 | /* If the original PC was an unmapped address then we translate this to a | |
3381 | mapped address in order to lookup the sal. However, as the user | |
3382 | passed us an unmapped address it makes more sense to return a result | |
3383 | that has the pc and end fields translated to unmapped addresses. */ | |
3384 | pc = overlay_mapped_address (pc, section); | |
3385 | symtab_and_line sal = find_pc_sect_line (pc, section, notcurrent); | |
3386 | sal.pc = overlay_unmapped_address (sal.pc, section); | |
3387 | sal.end = overlay_unmapped_address (sal.end, section); | |
3388 | return sal; | |
c906108c | 3389 | } |
34248c3a DE |
3390 | |
3391 | /* See symtab.h. */ | |
3392 | ||
3393 | struct symtab * | |
3394 | find_pc_line_symtab (CORE_ADDR pc) | |
3395 | { | |
3396 | struct symtab_and_line sal; | |
3397 | ||
3398 | /* This always passes zero for NOTCURRENT to find_pc_line. | |
3399 | There are currently no callers that ever pass non-zero. */ | |
3400 | sal = find_pc_line (pc, 0); | |
3401 | return sal.symtab; | |
3402 | } | |
c906108c | 3403 | \f |
c906108c SS |
3404 | /* Find line number LINE in any symtab whose name is the same as |
3405 | SYMTAB. | |
3406 | ||
3407 | If found, return the symtab that contains the linetable in which it was | |
3408 | found, set *INDEX to the index in the linetable of the best entry | |
ececd218 | 3409 | found, and set *EXACT_MATCH to true if the value returned is an |
c906108c SS |
3410 | exact match. |
3411 | ||
3412 | If not found, return NULL. */ | |
3413 | ||
50641945 | 3414 | struct symtab * |
5accd1a0 | 3415 | find_line_symtab (struct symtab *sym_tab, int line, |
ececd218 | 3416 | int *index, bool *exact_match) |
c906108c | 3417 | { |
6f43c46f | 3418 | int exact = 0; /* Initialized here to avoid a compiler warning. */ |
c906108c SS |
3419 | |
3420 | /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE | |
3421 | so far seen. */ | |
3422 | ||
3423 | int best_index; | |
3424 | struct linetable *best_linetable; | |
3425 | struct symtab *best_symtab; | |
3426 | ||
3427 | /* First try looking it up in the given symtab. */ | |
5accd1a0 TT |
3428 | best_linetable = SYMTAB_LINETABLE (sym_tab); |
3429 | best_symtab = sym_tab; | |
f8eba3c6 | 3430 | best_index = find_line_common (best_linetable, line, &exact, 0); |
c906108c SS |
3431 | if (best_index < 0 || !exact) |
3432 | { | |
3433 | /* Didn't find an exact match. So we better keep looking for | |
dda83cd7 SM |
3434 | another symtab with the same name. In the case of xcoff, |
3435 | multiple csects for one source file (produced by IBM's FORTRAN | |
3436 | compiler) produce multiple symtabs (this is unavoidable | |
3437 | assuming csects can be at arbitrary places in memory and that | |
3438 | the GLOBAL_BLOCK of a symtab has a begin and end address). */ | |
c906108c SS |
3439 | |
3440 | /* BEST is the smallest linenumber > LINE so far seen, | |
dda83cd7 SM |
3441 | or 0 if none has been seen so far. |
3442 | BEST_INDEX and BEST_LINETABLE identify the item for it. */ | |
c906108c SS |
3443 | int best; |
3444 | ||
c906108c SS |
3445 | if (best_index >= 0) |
3446 | best = best_linetable->item[best_index].line; | |
3447 | else | |
3448 | best = 0; | |
3449 | ||
2030c079 | 3450 | for (objfile *objfile : current_program_space->objfiles ()) |
4d080b46 | 3451 | objfile->expand_symtabs_with_fullname (symtab_to_fullname (sym_tab)); |
51432cca | 3452 | |
2030c079 | 3453 | for (objfile *objfile : current_program_space->objfiles ()) |
8b31193a | 3454 | { |
b669c953 | 3455 | for (compunit_symtab *cu : objfile->compunits ()) |
8b31193a TT |
3456 | { |
3457 | for (symtab *s : compunit_filetabs (cu)) | |
3458 | { | |
3459 | struct linetable *l; | |
3460 | int ind; | |
3461 | ||
3462 | if (FILENAME_CMP (sym_tab->filename, s->filename) != 0) | |
3463 | continue; | |
3464 | if (FILENAME_CMP (symtab_to_fullname (sym_tab), | |
3465 | symtab_to_fullname (s)) != 0) | |
3466 | continue; | |
3467 | l = SYMTAB_LINETABLE (s); | |
3468 | ind = find_line_common (l, line, &exact, 0); | |
3469 | if (ind >= 0) | |
3470 | { | |
3471 | if (exact) | |
3472 | { | |
3473 | best_index = ind; | |
3474 | best_linetable = l; | |
3475 | best_symtab = s; | |
3476 | goto done; | |
3477 | } | |
3478 | if (best == 0 || l->item[ind].line < best) | |
3479 | { | |
3480 | best = l->item[ind].line; | |
3481 | best_index = ind; | |
3482 | best_linetable = l; | |
3483 | best_symtab = s; | |
3484 | } | |
3485 | } | |
3486 | } | |
3487 | } | |
3488 | } | |
c906108c | 3489 | } |
c5aa993b | 3490 | done: |
c906108c SS |
3491 | if (best_index < 0) |
3492 | return NULL; | |
3493 | ||
3494 | if (index) | |
3495 | *index = best_index; | |
3496 | if (exact_match) | |
ececd218 | 3497 | *exact_match = (exact != 0); |
c906108c SS |
3498 | |
3499 | return best_symtab; | |
3500 | } | |
f8eba3c6 TT |
3501 | |
3502 | /* Given SYMTAB, returns all the PCs function in the symtab that | |
67d89901 TT |
3503 | exactly match LINE. Returns an empty vector if there are no exact |
3504 | matches, but updates BEST_ITEM in this case. */ | |
f8eba3c6 | 3505 | |
67d89901 | 3506 | std::vector<CORE_ADDR> |
f8eba3c6 TT |
3507 | find_pcs_for_symtab_line (struct symtab *symtab, int line, |
3508 | struct linetable_entry **best_item) | |
3509 | { | |
c656bca5 | 3510 | int start = 0; |
67d89901 | 3511 | std::vector<CORE_ADDR> result; |
f8eba3c6 TT |
3512 | |
3513 | /* First, collect all the PCs that are at this line. */ | |
3514 | while (1) | |
3515 | { | |
3516 | int was_exact; | |
3517 | int idx; | |
3518 | ||
8435453b DE |
3519 | idx = find_line_common (SYMTAB_LINETABLE (symtab), line, &was_exact, |
3520 | start); | |
f8eba3c6 TT |
3521 | if (idx < 0) |
3522 | break; | |
3523 | ||
3524 | if (!was_exact) | |
3525 | { | |
8435453b | 3526 | struct linetable_entry *item = &SYMTAB_LINETABLE (symtab)->item[idx]; |
f8eba3c6 | 3527 | |
8c95582d AB |
3528 | if (*best_item == NULL |
3529 | || (item->line < (*best_item)->line && item->is_stmt)) | |
f8eba3c6 TT |
3530 | *best_item = item; |
3531 | ||
3532 | break; | |
3533 | } | |
3534 | ||
67d89901 | 3535 | result.push_back (SYMTAB_LINETABLE (symtab)->item[idx].pc); |
f8eba3c6 TT |
3536 | start = idx + 1; |
3537 | } | |
3538 | ||
3539 | return result; | |
3540 | } | |
3541 | ||
c906108c SS |
3542 | \f |
3543 | /* Set the PC value for a given source file and line number and return true. | |
ececd218 | 3544 | Returns false for invalid line number (and sets the PC to 0). |
c906108c SS |
3545 | The source file is specified with a struct symtab. */ |
3546 | ||
ececd218 | 3547 | bool |
fba45db2 | 3548 | find_line_pc (struct symtab *symtab, int line, CORE_ADDR *pc) |
c906108c SS |
3549 | { |
3550 | struct linetable *l; | |
3551 | int ind; | |
3552 | ||
3553 | *pc = 0; | |
3554 | if (symtab == 0) | |
ececd218 | 3555 | return false; |
c906108c SS |
3556 | |
3557 | symtab = find_line_symtab (symtab, line, &ind, NULL); | |
3558 | if (symtab != NULL) | |
3559 | { | |
8435453b | 3560 | l = SYMTAB_LINETABLE (symtab); |
c906108c | 3561 | *pc = l->item[ind].pc; |
ececd218 | 3562 | return true; |
c906108c SS |
3563 | } |
3564 | else | |
ececd218 | 3565 | return false; |
c906108c SS |
3566 | } |
3567 | ||
3568 | /* Find the range of pc values in a line. | |
3569 | Store the starting pc of the line into *STARTPTR | |
3570 | and the ending pc (start of next line) into *ENDPTR. | |
ececd218 CB |
3571 | Returns true to indicate success. |
3572 | Returns false if could not find the specified line. */ | |
c906108c | 3573 | |
ececd218 | 3574 | bool |
fba45db2 KB |
3575 | find_line_pc_range (struct symtab_and_line sal, CORE_ADDR *startptr, |
3576 | CORE_ADDR *endptr) | |
c906108c SS |
3577 | { |
3578 | CORE_ADDR startaddr; | |
3579 | struct symtab_and_line found_sal; | |
3580 | ||
3581 | startaddr = sal.pc; | |
c5aa993b | 3582 | if (startaddr == 0 && !find_line_pc (sal.symtab, sal.line, &startaddr)) |
ececd218 | 3583 | return false; |
c906108c SS |
3584 | |
3585 | /* This whole function is based on address. For example, if line 10 has | |
3586 | two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then | |
3587 | "info line *0x123" should say the line goes from 0x100 to 0x200 | |
3588 | and "info line *0x355" should say the line goes from 0x300 to 0x400. | |
3589 | This also insures that we never give a range like "starts at 0x134 | |
3590 | and ends at 0x12c". */ | |
3591 | ||
3592 | found_sal = find_pc_sect_line (startaddr, sal.section, 0); | |
3593 | if (found_sal.line != sal.line) | |
3594 | { | |
3595 | /* The specified line (sal) has zero bytes. */ | |
3596 | *startptr = found_sal.pc; | |
3597 | *endptr = found_sal.pc; | |
3598 | } | |
3599 | else | |
3600 | { | |
3601 | *startptr = found_sal.pc; | |
3602 | *endptr = found_sal.end; | |
3603 | } | |
ececd218 | 3604 | return true; |
c906108c SS |
3605 | } |
3606 | ||
3607 | /* Given a line table and a line number, return the index into the line | |
3608 | table for the pc of the nearest line whose number is >= the specified one. | |
3609 | Return -1 if none is found. The value is >= 0 if it is an index. | |
f8eba3c6 | 3610 | START is the index at which to start searching the line table. |
c906108c SS |
3611 | |
3612 | Set *EXACT_MATCH nonzero if the value returned is an exact match. */ | |
3613 | ||
3614 | static int | |
aa1ee363 | 3615 | find_line_common (struct linetable *l, int lineno, |
f8eba3c6 | 3616 | int *exact_match, int start) |
c906108c | 3617 | { |
52f0bd74 AC |
3618 | int i; |
3619 | int len; | |
c906108c SS |
3620 | |
3621 | /* BEST is the smallest linenumber > LINENO so far seen, | |
3622 | or 0 if none has been seen so far. | |
3623 | BEST_INDEX identifies the item for it. */ | |
3624 | ||
3625 | int best_index = -1; | |
3626 | int best = 0; | |
3627 | ||
b7589f7d DJ |
3628 | *exact_match = 0; |
3629 | ||
c906108c SS |
3630 | if (lineno <= 0) |
3631 | return -1; | |
3632 | if (l == 0) | |
3633 | return -1; | |
3634 | ||
3635 | len = l->nitems; | |
f8eba3c6 | 3636 | for (i = start; i < len; i++) |
c906108c | 3637 | { |
aa1ee363 | 3638 | struct linetable_entry *item = &(l->item[i]); |
c906108c | 3639 | |
8c95582d AB |
3640 | /* Ignore non-statements. */ |
3641 | if (!item->is_stmt) | |
3642 | continue; | |
3643 | ||
c906108c SS |
3644 | if (item->line == lineno) |
3645 | { | |
3646 | /* Return the first (lowest address) entry which matches. */ | |
3647 | *exact_match = 1; | |
3648 | return i; | |
3649 | } | |
3650 | ||
3651 | if (item->line > lineno && (best == 0 || item->line < best)) | |
3652 | { | |
3653 | best = item->line; | |
3654 | best_index = i; | |
3655 | } | |
3656 | } | |
3657 | ||
3658 | /* If we got here, we didn't get an exact match. */ | |
c906108c SS |
3659 | return best_index; |
3660 | } | |
3661 | ||
ececd218 | 3662 | bool |
fba45db2 | 3663 | find_pc_line_pc_range (CORE_ADDR pc, CORE_ADDR *startptr, CORE_ADDR *endptr) |
c906108c SS |
3664 | { |
3665 | struct symtab_and_line sal; | |
433759f7 | 3666 | |
c906108c SS |
3667 | sal = find_pc_line (pc, 0); |
3668 | *startptr = sal.pc; | |
3669 | *endptr = sal.end; | |
3670 | return sal.symtab != 0; | |
3671 | } | |
3672 | ||
cd2bb709 PA |
3673 | /* Helper for find_function_start_sal. Does most of the work, except |
3674 | setting the sal's symbol. */ | |
aab2f208 | 3675 | |
cd2bb709 PA |
3676 | static symtab_and_line |
3677 | find_function_start_sal_1 (CORE_ADDR func_addr, obj_section *section, | |
3678 | bool funfirstline) | |
aab2f208 | 3679 | { |
42ddae10 | 3680 | symtab_and_line sal = find_pc_sect_line (func_addr, section, 0); |
aab2f208 | 3681 | |
6e22494e JK |
3682 | if (funfirstline && sal.symtab != NULL |
3683 | && (COMPUNIT_LOCATIONS_VALID (SYMTAB_COMPUNIT (sal.symtab)) | |
3684 | || SYMTAB_LANGUAGE (sal.symtab) == language_asm)) | |
3685 | { | |
08feed99 | 3686 | struct gdbarch *gdbarch = SYMTAB_OBJFILE (sal.symtab)->arch (); |
141c5cc4 | 3687 | |
42ddae10 | 3688 | sal.pc = func_addr; |
141c5cc4 JK |
3689 | if (gdbarch_skip_entrypoint_p (gdbarch)) |
3690 | sal.pc = gdbarch_skip_entrypoint (gdbarch, sal.pc); | |
6e22494e JK |
3691 | return sal; |
3692 | } | |
3693 | ||
aab2f208 | 3694 | /* We always should have a line for the function start address. |
42ddae10 | 3695 | If we don't, something is odd. Create a plain SAL referring |
aab2f208 DE |
3696 | just the PC and hope that skip_prologue_sal (if requested) |
3697 | can find a line number for after the prologue. */ | |
42ddae10 | 3698 | if (sal.pc < func_addr) |
aab2f208 | 3699 | { |
51abb421 | 3700 | sal = {}; |
aab2f208 | 3701 | sal.pspace = current_program_space; |
42ddae10 | 3702 | sal.pc = func_addr; |
08be3fe3 | 3703 | sal.section = section; |
aab2f208 DE |
3704 | } |
3705 | ||
3706 | if (funfirstline) | |
3707 | skip_prologue_sal (&sal); | |
3708 | ||
3709 | return sal; | |
3710 | } | |
3711 | ||
42ddae10 PA |
3712 | /* See symtab.h. */ |
3713 | ||
cd2bb709 PA |
3714 | symtab_and_line |
3715 | find_function_start_sal (CORE_ADDR func_addr, obj_section *section, | |
3716 | bool funfirstline) | |
3717 | { | |
3718 | symtab_and_line sal | |
3719 | = find_function_start_sal_1 (func_addr, section, funfirstline); | |
3720 | ||
3721 | /* find_function_start_sal_1 does a linetable search, so it finds | |
3722 | the symtab and linenumber, but not a symbol. Fill in the | |
3723 | function symbol too. */ | |
3724 | sal.symbol = find_pc_sect_containing_function (sal.pc, sal.section); | |
3725 | ||
3726 | return sal; | |
3727 | } | |
3728 | ||
3729 | /* See symtab.h. */ | |
3730 | ||
42ddae10 PA |
3731 | symtab_and_line |
3732 | find_function_start_sal (symbol *sym, bool funfirstline) | |
3733 | { | |
3734 | fixup_symbol_section (sym, NULL); | |
3735 | symtab_and_line sal | |
2b1ffcfd | 3736 | = find_function_start_sal_1 (BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (sym)), |
ebbc3a7d | 3737 | sym->obj_section (symbol_objfile (sym)), |
cd2bb709 | 3738 | funfirstline); |
42ddae10 PA |
3739 | sal.symbol = sym; |
3740 | return sal; | |
3741 | } | |
3742 | ||
3743 | ||
8c7a1ee8 EZ |
3744 | /* Given a function start address FUNC_ADDR and SYMTAB, find the first |
3745 | address for that function that has an entry in SYMTAB's line info | |
3746 | table. If such an entry cannot be found, return FUNC_ADDR | |
3747 | unaltered. */ | |
eca864fe | 3748 | |
70221824 | 3749 | static CORE_ADDR |
8c7a1ee8 EZ |
3750 | skip_prologue_using_lineinfo (CORE_ADDR func_addr, struct symtab *symtab) |
3751 | { | |
3752 | CORE_ADDR func_start, func_end; | |
3753 | struct linetable *l; | |
952a6d41 | 3754 | int i; |
8c7a1ee8 EZ |
3755 | |
3756 | /* Give up if this symbol has no lineinfo table. */ | |
8435453b | 3757 | l = SYMTAB_LINETABLE (symtab); |
8c7a1ee8 EZ |
3758 | if (l == NULL) |
3759 | return func_addr; | |
3760 | ||
3761 | /* Get the range for the function's PC values, or give up if we | |
3762 | cannot, for some reason. */ | |
3763 | if (!find_pc_partial_function (func_addr, NULL, &func_start, &func_end)) | |
3764 | return func_addr; | |
3765 | ||
3766 | /* Linetable entries are ordered by PC values, see the commentary in | |
3767 | symtab.h where `struct linetable' is defined. Thus, the first | |
3768 | entry whose PC is in the range [FUNC_START..FUNC_END[ is the | |
3769 | address we are looking for. */ | |
3770 | for (i = 0; i < l->nitems; i++) | |
3771 | { | |
3772 | struct linetable_entry *item = &(l->item[i]); | |
3773 | ||
3774 | /* Don't use line numbers of zero, they mark special entries in | |
3775 | the table. See the commentary on symtab.h before the | |
3776 | definition of struct linetable. */ | |
3777 | if (item->line > 0 && func_start <= item->pc && item->pc < func_end) | |
3778 | return item->pc; | |
3779 | } | |
3780 | ||
3781 | return func_addr; | |
3782 | } | |
3783 | ||
059acae7 UW |
3784 | /* Adjust SAL to the first instruction past the function prologue. |
3785 | If the PC was explicitly specified, the SAL is not changed. | |
5b0e2db4 AB |
3786 | If the line number was explicitly specified then the SAL can still be |
3787 | updated, unless the language for SAL is assembler, in which case the SAL | |
3788 | will be left unchanged. | |
3789 | If SAL is already past the prologue, then do nothing. */ | |
eca864fe | 3790 | |
059acae7 UW |
3791 | void |
3792 | skip_prologue_sal (struct symtab_and_line *sal) | |
3793 | { | |
3794 | struct symbol *sym; | |
3795 | struct symtab_and_line start_sal; | |
8be455d7 | 3796 | CORE_ADDR pc, saved_pc; |
059acae7 UW |
3797 | struct obj_section *section; |
3798 | const char *name; | |
3799 | struct objfile *objfile; | |
3800 | struct gdbarch *gdbarch; | |
3977b71f | 3801 | const struct block *b, *function_block; |
8be455d7 | 3802 | int force_skip, skip; |
c906108c | 3803 | |
a4b411d6 | 3804 | /* Do not change the SAL if PC was specified explicitly. */ |
059acae7 UW |
3805 | if (sal->explicit_pc) |
3806 | return; | |
6c95b8df | 3807 | |
5b0e2db4 AB |
3808 | /* In assembly code, if the user asks for a specific line then we should |
3809 | not adjust the SAL. The user already has instruction level | |
3810 | visibility in this case, so selecting a line other than one requested | |
3811 | is likely to be the wrong choice. */ | |
3812 | if (sal->symtab != nullptr | |
3813 | && sal->explicit_line | |
3814 | && SYMTAB_LANGUAGE (sal->symtab) == language_asm) | |
3815 | return; | |
3816 | ||
5ed8105e PA |
3817 | scoped_restore_current_pspace_and_thread restore_pspace_thread; |
3818 | ||
059acae7 | 3819 | switch_to_program_space_and_thread (sal->pspace); |
6c95b8df | 3820 | |
059acae7 UW |
3821 | sym = find_pc_sect_function (sal->pc, sal->section); |
3822 | if (sym != NULL) | |
bccdca4a | 3823 | { |
059acae7 UW |
3824 | fixup_symbol_section (sym, NULL); |
3825 | ||
08be3fe3 | 3826 | objfile = symbol_objfile (sym); |
2b1ffcfd | 3827 | pc = BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (sym)); |
ebbc3a7d | 3828 | section = sym->obj_section (objfile); |
987012b8 | 3829 | name = sym->linkage_name (); |
c906108c | 3830 | } |
059acae7 UW |
3831 | else |
3832 | { | |
7c7b6655 | 3833 | struct bound_minimal_symbol msymbol |
dda83cd7 | 3834 | = lookup_minimal_symbol_by_pc_section (sal->pc, sal->section); |
433759f7 | 3835 | |
7c7b6655 | 3836 | if (msymbol.minsym == NULL) |
5ed8105e | 3837 | return; |
059acae7 | 3838 | |
7c7b6655 | 3839 | objfile = msymbol.objfile; |
77e371c0 | 3840 | pc = BMSYMBOL_VALUE_ADDRESS (msymbol); |
ebbc3a7d | 3841 | section = msymbol.minsym->obj_section (objfile); |
c9d95fa3 | 3842 | name = msymbol.minsym->linkage_name (); |
059acae7 UW |
3843 | } |
3844 | ||
08feed99 | 3845 | gdbarch = objfile->arch (); |
059acae7 | 3846 | |
8be455d7 JK |
3847 | /* Process the prologue in two passes. In the first pass try to skip the |
3848 | prologue (SKIP is true) and verify there is a real need for it (indicated | |
3849 | by FORCE_SKIP). If no such reason was found run a second pass where the | |
3850 | prologue is not skipped (SKIP is false). */ | |
059acae7 | 3851 | |
8be455d7 JK |
3852 | skip = 1; |
3853 | force_skip = 1; | |
059acae7 | 3854 | |
8be455d7 JK |
3855 | /* Be conservative - allow direct PC (without skipping prologue) only if we |
3856 | have proven the CU (Compilation Unit) supports it. sal->SYMTAB does not | |
3857 | have to be set by the caller so we use SYM instead. */ | |
08be3fe3 DE |
3858 | if (sym != NULL |
3859 | && COMPUNIT_LOCATIONS_VALID (SYMTAB_COMPUNIT (symbol_symtab (sym)))) | |
8be455d7 | 3860 | force_skip = 0; |
059acae7 | 3861 | |
8be455d7 JK |
3862 | saved_pc = pc; |
3863 | do | |
c906108c | 3864 | { |
8be455d7 | 3865 | pc = saved_pc; |
4309257c | 3866 | |
8be455d7 JK |
3867 | /* If the function is in an unmapped overlay, use its unmapped LMA address, |
3868 | so that gdbarch_skip_prologue has something unique to work on. */ | |
3869 | if (section_is_overlay (section) && !section_is_mapped (section)) | |
3870 | pc = overlay_unmapped_address (pc, section); | |
3871 | ||
3872 | /* Skip "first line" of function (which is actually its prologue). */ | |
3873 | pc += gdbarch_deprecated_function_start_offset (gdbarch); | |
591a12a1 | 3874 | if (gdbarch_skip_entrypoint_p (gdbarch)) |
dda83cd7 | 3875 | pc = gdbarch_skip_entrypoint (gdbarch, pc); |
8be455d7 | 3876 | if (skip) |
46a62268 | 3877 | pc = gdbarch_skip_prologue_noexcept (gdbarch, pc); |
8be455d7 JK |
3878 | |
3879 | /* For overlays, map pc back into its mapped VMA range. */ | |
3880 | pc = overlay_mapped_address (pc, section); | |
3881 | ||
3882 | /* Calculate line number. */ | |
059acae7 | 3883 | start_sal = find_pc_sect_line (pc, section, 0); |
8be455d7 JK |
3884 | |
3885 | /* Check if gdbarch_skip_prologue left us in mid-line, and the next | |
3886 | line is still part of the same function. */ | |
3887 | if (skip && start_sal.pc != pc | |
2b1ffcfd | 3888 | && (sym ? (BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (sym)) <= start_sal.end |
b1d96efd | 3889 | && start_sal.end < BLOCK_END (SYMBOL_BLOCK_VALUE (sym))) |
7cbd4a93 TT |
3890 | : (lookup_minimal_symbol_by_pc_section (start_sal.end, section).minsym |
3891 | == lookup_minimal_symbol_by_pc_section (pc, section).minsym))) | |
8be455d7 JK |
3892 | { |
3893 | /* First pc of next line */ | |
3894 | pc = start_sal.end; | |
3895 | /* Recalculate the line number (might not be N+1). */ | |
3896 | start_sal = find_pc_sect_line (pc, section, 0); | |
3897 | } | |
3898 | ||
3899 | /* On targets with executable formats that don't have a concept of | |
3900 | constructors (ELF with .init has, PE doesn't), gcc emits a call | |
3901 | to `__main' in `main' between the prologue and before user | |
3902 | code. */ | |
3903 | if (gdbarch_skip_main_prologue_p (gdbarch) | |
7ccffd7c | 3904 | && name && strcmp_iw (name, "main") == 0) |
8be455d7 JK |
3905 | { |
3906 | pc = gdbarch_skip_main_prologue (gdbarch, pc); | |
3907 | /* Recalculate the line number (might not be N+1). */ | |
3908 | start_sal = find_pc_sect_line (pc, section, 0); | |
3909 | force_skip = 1; | |
3910 | } | |
4309257c | 3911 | } |
8be455d7 | 3912 | while (!force_skip && skip--); |
4309257c | 3913 | |
8c7a1ee8 EZ |
3914 | /* If we still don't have a valid source line, try to find the first |
3915 | PC in the lineinfo table that belongs to the same function. This | |
3916 | happens with COFF debug info, which does not seem to have an | |
3917 | entry in lineinfo table for the code after the prologue which has | |
3918 | no direct relation to source. For example, this was found to be | |
3919 | the case with the DJGPP target using "gcc -gcoff" when the | |
3920 | compiler inserted code after the prologue to make sure the stack | |
3921 | is aligned. */ | |
8be455d7 | 3922 | if (!force_skip && sym && start_sal.symtab == NULL) |
8c7a1ee8 | 3923 | { |
08be3fe3 | 3924 | pc = skip_prologue_using_lineinfo (pc, symbol_symtab (sym)); |
8c7a1ee8 | 3925 | /* Recalculate the line number. */ |
059acae7 | 3926 | start_sal = find_pc_sect_line (pc, section, 0); |
8c7a1ee8 EZ |
3927 | } |
3928 | ||
059acae7 UW |
3929 | /* If we're already past the prologue, leave SAL unchanged. Otherwise |
3930 | forward SAL to the end of the prologue. */ | |
3931 | if (sal->pc >= pc) | |
3932 | return; | |
3933 | ||
3934 | sal->pc = pc; | |
3935 | sal->section = section; | |
059acae7 UW |
3936 | sal->symtab = start_sal.symtab; |
3937 | sal->line = start_sal.line; | |
3938 | sal->end = start_sal.end; | |
c906108c | 3939 | |
edb3359d DJ |
3940 | /* Check if we are now inside an inlined function. If we can, |
3941 | use the call site of the function instead. */ | |
059acae7 | 3942 | b = block_for_pc_sect (sal->pc, sal->section); |
edb3359d DJ |
3943 | function_block = NULL; |
3944 | while (b != NULL) | |
3945 | { | |
3946 | if (BLOCK_FUNCTION (b) != NULL && block_inlined_p (b)) | |
3947 | function_block = b; | |
3948 | else if (BLOCK_FUNCTION (b) != NULL) | |
3949 | break; | |
3950 | b = BLOCK_SUPERBLOCK (b); | |
3951 | } | |
3952 | if (function_block != NULL | |
3953 | && SYMBOL_LINE (BLOCK_FUNCTION (function_block)) != 0) | |
3954 | { | |
059acae7 | 3955 | sal->line = SYMBOL_LINE (BLOCK_FUNCTION (function_block)); |
08be3fe3 | 3956 | sal->symtab = symbol_symtab (BLOCK_FUNCTION (function_block)); |
edb3359d | 3957 | } |
c906108c | 3958 | } |
50641945 | 3959 | |
f1f58506 DE |
3960 | /* Given PC at the function's start address, attempt to find the |
3961 | prologue end using SAL information. Return zero if the skip fails. | |
3962 | ||
3963 | A non-optimized prologue traditionally has one SAL for the function | |
3964 | and a second for the function body. A single line function has | |
3965 | them both pointing at the same line. | |
3966 | ||
3967 | An optimized prologue is similar but the prologue may contain | |
3968 | instructions (SALs) from the instruction body. Need to skip those | |
3969 | while not getting into the function body. | |
3970 | ||
3971 | The functions end point and an increasing SAL line are used as | |
3972 | indicators of the prologue's endpoint. | |
3973 | ||
3974 | This code is based on the function refine_prologue_limit | |
3975 | (found in ia64). */ | |
3976 | ||
3977 | CORE_ADDR | |
3978 | skip_prologue_using_sal (struct gdbarch *gdbarch, CORE_ADDR func_addr) | |
3979 | { | |
3980 | struct symtab_and_line prologue_sal; | |
3981 | CORE_ADDR start_pc; | |
3982 | CORE_ADDR end_pc; | |
3983 | const struct block *bl; | |
3984 | ||
3985 | /* Get an initial range for the function. */ | |
3986 | find_pc_partial_function (func_addr, NULL, &start_pc, &end_pc); | |
3987 | start_pc += gdbarch_deprecated_function_start_offset (gdbarch); | |
3988 | ||
3989 | prologue_sal = find_pc_line (start_pc, 0); | |
3990 | if (prologue_sal.line != 0) | |
3991 | { | |
3992 | /* For languages other than assembly, treat two consecutive line | |
3993 | entries at the same address as a zero-instruction prologue. | |
3994 | The GNU assembler emits separate line notes for each instruction | |
3995 | in a multi-instruction macro, but compilers generally will not | |
3996 | do this. */ | |
3997 | if (prologue_sal.symtab->language != language_asm) | |
3998 | { | |
8435453b | 3999 | struct linetable *linetable = SYMTAB_LINETABLE (prologue_sal.symtab); |
f1f58506 DE |
4000 | int idx = 0; |
4001 | ||
4002 | /* Skip any earlier lines, and any end-of-sequence marker | |
4003 | from a previous function. */ | |
4004 | while (linetable->item[idx].pc != prologue_sal.pc | |
4005 | || linetable->item[idx].line == 0) | |
4006 | idx++; | |
4007 | ||
4008 | if (idx+1 < linetable->nitems | |
4009 | && linetable->item[idx+1].line != 0 | |
4010 | && linetable->item[idx+1].pc == start_pc) | |
4011 | return start_pc; | |
4012 | } | |
4013 | ||
4014 | /* If there is only one sal that covers the entire function, | |
4015 | then it is probably a single line function, like | |
4016 | "foo(){}". */ | |
4017 | if (prologue_sal.end >= end_pc) | |
4018 | return 0; | |
4019 | ||
4020 | while (prologue_sal.end < end_pc) | |
4021 | { | |
4022 | struct symtab_and_line sal; | |
4023 | ||
4024 | sal = find_pc_line (prologue_sal.end, 0); | |
4025 | if (sal.line == 0) | |
4026 | break; | |
4027 | /* Assume that a consecutive SAL for the same (or larger) | |
4028 | line mark the prologue -> body transition. */ | |
4029 | if (sal.line >= prologue_sal.line) | |
4030 | break; | |
4031 | /* Likewise if we are in a different symtab altogether | |
4032 | (e.g. within a file included via #include). */ | |
4033 | if (sal.symtab != prologue_sal.symtab) | |
4034 | break; | |
4035 | ||
4036 | /* The line number is smaller. Check that it's from the | |
4037 | same function, not something inlined. If it's inlined, | |
4038 | then there is no point comparing the line numbers. */ | |
4039 | bl = block_for_pc (prologue_sal.end); | |
4040 | while (bl) | |
4041 | { | |
4042 | if (block_inlined_p (bl)) | |
4043 | break; | |
4044 | if (BLOCK_FUNCTION (bl)) | |
4045 | { | |
4046 | bl = NULL; | |
4047 | break; | |
4048 | } | |
4049 | bl = BLOCK_SUPERBLOCK (bl); | |
4050 | } | |
4051 | if (bl != NULL) | |
4052 | break; | |
4053 | ||
4054 | /* The case in which compiler's optimizer/scheduler has | |
4055 | moved instructions into the prologue. We look ahead in | |
4056 | the function looking for address ranges whose | |
4057 | corresponding line number is less the first one that we | |
4058 | found for the function. This is more conservative then | |
4059 | refine_prologue_limit which scans a large number of SALs | |
4060 | looking for any in the prologue. */ | |
4061 | prologue_sal = sal; | |
4062 | } | |
4063 | } | |
4064 | ||
4065 | if (prologue_sal.end < end_pc) | |
4066 | /* Return the end of this line, or zero if we could not find a | |
4067 | line. */ | |
4068 | return prologue_sal.end; | |
4069 | else | |
4070 | /* Don't return END_PC, which is past the end of the function. */ | |
4071 | return prologue_sal.pc; | |
4072 | } | |
bf223d3e PA |
4073 | |
4074 | /* See symtab.h. */ | |
4075 | ||
4076 | symbol * | |
4077 | find_function_alias_target (bound_minimal_symbol msymbol) | |
4078 | { | |
4024cf2b PA |
4079 | CORE_ADDR func_addr; |
4080 | if (!msymbol_is_function (msymbol.objfile, msymbol.minsym, &func_addr)) | |
bf223d3e PA |
4081 | return NULL; |
4082 | ||
4024cf2b | 4083 | symbol *sym = find_pc_function (func_addr); |
bf223d3e PA |
4084 | if (sym != NULL |
4085 | && SYMBOL_CLASS (sym) == LOC_BLOCK | |
2b1ffcfd | 4086 | && BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (sym)) == func_addr) |
bf223d3e PA |
4087 | return sym; |
4088 | ||
4089 | return NULL; | |
4090 | } | |
4091 | ||
f1f58506 | 4092 | \f |
c906108c SS |
4093 | /* If P is of the form "operator[ \t]+..." where `...' is |
4094 | some legitimate operator text, return a pointer to the | |
4095 | beginning of the substring of the operator text. | |
4096 | Otherwise, return "". */ | |
eca864fe | 4097 | |
96142726 TT |
4098 | static const char * |
4099 | operator_chars (const char *p, const char **end) | |
c906108c SS |
4100 | { |
4101 | *end = ""; | |
8090b426 | 4102 | if (!startswith (p, CP_OPERATOR_STR)) |
c906108c | 4103 | return *end; |
8090b426 | 4104 | p += CP_OPERATOR_LEN; |
c906108c SS |
4105 | |
4106 | /* Don't get faked out by `operator' being part of a longer | |
4107 | identifier. */ | |
c5aa993b | 4108 | if (isalpha (*p) || *p == '_' || *p == '$' || *p == '\0') |
c906108c SS |
4109 | return *end; |
4110 | ||
4111 | /* Allow some whitespace between `operator' and the operator symbol. */ | |
4112 | while (*p == ' ' || *p == '\t') | |
4113 | p++; | |
4114 | ||
c378eb4e | 4115 | /* Recognize 'operator TYPENAME'. */ |
c906108c | 4116 | |
c5aa993b | 4117 | if (isalpha (*p) || *p == '_' || *p == '$') |
c906108c | 4118 | { |
96142726 | 4119 | const char *q = p + 1; |
433759f7 | 4120 | |
c5aa993b | 4121 | while (isalnum (*q) || *q == '_' || *q == '$') |
c906108c SS |
4122 | q++; |
4123 | *end = q; | |
4124 | return p; | |
4125 | } | |
4126 | ||
53e8ad3d MS |
4127 | while (*p) |
4128 | switch (*p) | |
4129 | { | |
4130 | case '\\': /* regexp quoting */ | |
4131 | if (p[1] == '*') | |
4132 | { | |
3e43a32a | 4133 | if (p[2] == '=') /* 'operator\*=' */ |
53e8ad3d MS |
4134 | *end = p + 3; |
4135 | else /* 'operator\*' */ | |
4136 | *end = p + 2; | |
4137 | return p; | |
4138 | } | |
4139 | else if (p[1] == '[') | |
4140 | { | |
4141 | if (p[2] == ']') | |
3e43a32a MS |
4142 | error (_("mismatched quoting on brackets, " |
4143 | "try 'operator\\[\\]'")); | |
53e8ad3d MS |
4144 | else if (p[2] == '\\' && p[3] == ']') |
4145 | { | |
4146 | *end = p + 4; /* 'operator\[\]' */ | |
4147 | return p; | |
4148 | } | |
4149 | else | |
8a3fe4f8 | 4150 | error (_("nothing is allowed between '[' and ']'")); |
53e8ad3d | 4151 | } |
9af17804 | 4152 | else |
53e8ad3d | 4153 | { |
85102364 | 4154 | /* Gratuitous quote: skip it and move on. */ |
53e8ad3d MS |
4155 | p++; |
4156 | continue; | |
4157 | } | |
4158 | break; | |
4159 | case '!': | |
4160 | case '=': | |
4161 | case '*': | |
4162 | case '/': | |
4163 | case '%': | |
4164 | case '^': | |
4165 | if (p[1] == '=') | |
4166 | *end = p + 2; | |
4167 | else | |
4168 | *end = p + 1; | |
4169 | return p; | |
4170 | case '<': | |
4171 | case '>': | |
4172 | case '+': | |
4173 | case '-': | |
4174 | case '&': | |
4175 | case '|': | |
4176 | if (p[0] == '-' && p[1] == '>') | |
4177 | { | |
c378eb4e | 4178 | /* Struct pointer member operator 'operator->'. */ |
53e8ad3d MS |
4179 | if (p[2] == '*') |
4180 | { | |
4181 | *end = p + 3; /* 'operator->*' */ | |
4182 | return p; | |
4183 | } | |
4184 | else if (p[2] == '\\') | |
4185 | { | |
4186 | *end = p + 4; /* Hopefully 'operator->\*' */ | |
4187 | return p; | |
4188 | } | |
4189 | else | |
4190 | { | |
4191 | *end = p + 2; /* 'operator->' */ | |
4192 | return p; | |
4193 | } | |
4194 | } | |
4195 | if (p[1] == '=' || p[1] == p[0]) | |
4196 | *end = p + 2; | |
4197 | else | |
4198 | *end = p + 1; | |
4199 | return p; | |
4200 | case '~': | |
4201 | case ',': | |
c5aa993b | 4202 | *end = p + 1; |
53e8ad3d MS |
4203 | return p; |
4204 | case '(': | |
4205 | if (p[1] != ')') | |
3e43a32a MS |
4206 | error (_("`operator ()' must be specified " |
4207 | "without whitespace in `()'")); | |
c5aa993b | 4208 | *end = p + 2; |
53e8ad3d MS |
4209 | return p; |
4210 | case '?': | |
4211 | if (p[1] != ':') | |
3e43a32a MS |
4212 | error (_("`operator ?:' must be specified " |
4213 | "without whitespace in `?:'")); | |
53e8ad3d MS |
4214 | *end = p + 2; |
4215 | return p; | |
4216 | case '[': | |
4217 | if (p[1] != ']') | |
3e43a32a MS |
4218 | error (_("`operator []' must be specified " |
4219 | "without whitespace in `[]'")); | |
53e8ad3d MS |
4220 | *end = p + 2; |
4221 | return p; | |
4222 | default: | |
8a3fe4f8 | 4223 | error (_("`operator %s' not supported"), p); |
53e8ad3d MS |
4224 | break; |
4225 | } | |
4226 | ||
c906108c SS |
4227 | *end = ""; |
4228 | return *end; | |
4229 | } | |
c906108c | 4230 | \f |
c5aa993b | 4231 | |
4a0788e0 | 4232 | /* See class declaration. */ |
9fdc877b | 4233 | |
4a0788e0 AB |
4234 | info_sources_filter::info_sources_filter (match_on match_type, |
4235 | const char *regexp) | |
4236 | : m_match_type (match_type), | |
4237 | m_regexp (regexp) | |
9fdc877b | 4238 | { |
4a0788e0 AB |
4239 | /* Setup the compiled regular expression M_C_REGEXP based on M_REGEXP. */ |
4240 | if (m_regexp != nullptr && *m_regexp != '\0') | |
4241 | { | |
4242 | gdb_assert (m_regexp != nullptr); | |
28cd9371 | 4243 | |
4a0788e0 AB |
4244 | int cflags = REG_NOSUB; |
4245 | #ifdef HAVE_CASE_INSENSITIVE_FILE_SYSTEM | |
4246 | cflags |= REG_ICASE; | |
4247 | #endif | |
4248 | m_c_regexp.emplace (m_regexp, cflags, _("Invalid regexp")); | |
4249 | } | |
4250 | } | |
28cd9371 | 4251 | |
4a0788e0 | 4252 | /* See class declaration. */ |
9fdc877b | 4253 | |
4a0788e0 AB |
4254 | bool |
4255 | info_sources_filter::matches (const char *fullname) const | |
4256 | { | |
4257 | /* Does it match regexp? */ | |
4258 | if (m_c_regexp.has_value ()) | |
4259 | { | |
4260 | const char *to_match; | |
4261 | std::string dirname; | |
4262 | ||
4263 | switch (m_match_type) | |
4264 | { | |
4265 | case match_on::DIRNAME: | |
4266 | dirname = ldirname (fullname); | |
4267 | to_match = dirname.c_str (); | |
4268 | break; | |
4269 | case match_on::BASENAME: | |
4270 | to_match = lbasename (fullname); | |
4271 | break; | |
4272 | case match_on::FULLNAME: | |
4273 | to_match = fullname; | |
4274 | break; | |
b6aeb717 TT |
4275 | default: |
4276 | gdb_assert_not_reached ("bad m_match_type"); | |
4a0788e0 AB |
4277 | } |
4278 | ||
4279 | if (m_c_regexp->exec (to_match, 0, NULL, 0) != 0) | |
4280 | return false; | |
4281 | } | |
4282 | ||
4283 | return true; | |
4284 | } | |
4285 | ||
4a0788e0 AB |
4286 | /* Data structure to maintain the state used for printing the results of |
4287 | the 'info sources' command. */ | |
4288 | ||
4289 | struct output_source_filename_data | |
4290 | { | |
4291 | /* Create an object for displaying the results of the 'info sources' | |
0e350a05 AB |
4292 | command to UIOUT. FILTER must remain valid and unchanged for the |
4293 | lifetime of this object as this object retains a reference to FILTER. */ | |
4294 | output_source_filename_data (struct ui_out *uiout, | |
4295 | const info_sources_filter &filter) | |
4296 | : m_filter (filter), | |
4297 | m_uiout (uiout) | |
4a0788e0 AB |
4298 | { /* Nothing. */ } |
4299 | ||
4300 | DISABLE_COPY_AND_ASSIGN (output_source_filename_data); | |
4301 | ||
4302 | /* Reset enough state of this object so we can match against a new set of | |
4303 | files. The existing regular expression is retained though. */ | |
4304 | void reset_output () | |
4305 | { | |
4306 | m_first = true; | |
4307 | m_filename_seen_cache.clear (); | |
4308 | } | |
4309 | ||
0e350a05 AB |
4310 | /* Worker for sources_info, outputs the file name formatted for either |
4311 | cli or mi (based on the current_uiout). In cli mode displays | |
4312 | FULLNAME with a comma separating this name from any previously | |
4313 | printed name (line breaks are added at the comma). In MI mode | |
4314 | outputs a tuple containing DISP_NAME (the files display name), | |
4315 | FULLNAME, and EXPANDED_P (true when this file is from a fully | |
4316 | expanded symtab, otherwise false). */ | |
4317 | void output (const char *disp_name, const char *fullname, bool expanded_p); | |
eca864fe | 4318 | |
f4655dee TT |
4319 | /* An overload suitable for use as a callback to |
4320 | quick_symbol_functions::map_symbol_filenames. */ | |
4321 | void operator() (const char *filename, const char *fullname) | |
4322 | { | |
0e350a05 AB |
4323 | /* The false here indicates that this file is from an unexpanded |
4324 | symtab. */ | |
4325 | output (filename, fullname, false); | |
f4655dee | 4326 | } |
4a0788e0 | 4327 | |
bd742128 AB |
4328 | /* Return true if at least one filename has been printed (after a call to |
4329 | output) since either this object was created, or the last call to | |
4330 | reset_output. */ | |
4331 | bool printed_filename_p () const | |
4332 | { | |
4333 | return !m_first; | |
4334 | } | |
4335 | ||
4a0788e0 AB |
4336 | private: |
4337 | ||
4338 | /* Flag of whether we're printing the first one. */ | |
4339 | bool m_first = true; | |
4340 | ||
4341 | /* Cache of what we've seen so far. */ | |
4342 | filename_seen_cache m_filename_seen_cache; | |
4343 | ||
4344 | /* How source filename should be filtered. */ | |
4345 | const info_sources_filter &m_filter; | |
0e350a05 AB |
4346 | |
4347 | /* The object to which output is sent. */ | |
4348 | struct ui_out *m_uiout; | |
f4655dee TT |
4349 | }; |
4350 | ||
4a0788e0 AB |
4351 | /* See comment in class declaration above. */ |
4352 | ||
f4655dee | 4353 | void |
0e350a05 AB |
4354 | output_source_filename_data::output (const char *disp_name, |
4355 | const char *fullname, | |
4356 | bool expanded_p) | |
c94fdfd0 EZ |
4357 | { |
4358 | /* Since a single source file can result in several partial symbol | |
4359 | tables, we need to avoid printing it more than once. Note: if | |
4360 | some of the psymtabs are read in and some are not, it gets | |
4361 | printed both under "Source files for which symbols have been | |
4362 | read" and "Source files for which symbols will be read in on | |
4363 | demand". I consider this a reasonable way to deal with the | |
4364 | situation. I'm not sure whether this can also happen for | |
4365 | symtabs; it doesn't hurt to check. */ | |
4366 | ||
4a0788e0 | 4367 | /* Was NAME already seen? If so, then don't print it again. */ |
0e350a05 | 4368 | if (m_filename_seen_cache.seen (fullname)) |
4a0788e0 | 4369 | return; |
28cd9371 | 4370 | |
4a0788e0 | 4371 | /* If the filter rejects this file then don't print it. */ |
0e350a05 | 4372 | if (!m_filter.matches (fullname)) |
4a0788e0 | 4373 | return; |
28cd9371 | 4374 | |
0e350a05 AB |
4375 | ui_out_emit_tuple ui_emitter (m_uiout, nullptr); |
4376 | ||
28cd9371 | 4377 | /* Print it and reset *FIRST. */ |
4a0788e0 | 4378 | if (!m_first) |
0e350a05 | 4379 | m_uiout->text (", "); |
4a0788e0 | 4380 | m_first = false; |
c906108c SS |
4381 | |
4382 | wrap_here (""); | |
0e350a05 AB |
4383 | if (m_uiout->is_mi_like_p ()) |
4384 | { | |
4385 | m_uiout->field_string ("file", disp_name, file_name_style.style ()); | |
4386 | if (fullname != nullptr) | |
4387 | m_uiout->field_string ("fullname", fullname, | |
4388 | file_name_style.style ()); | |
4389 | m_uiout->field_string ("debug-fully-read", | |
4390 | (expanded_p ? "true" : "false")); | |
4391 | } | |
4392 | else | |
4393 | { | |
4394 | if (fullname == nullptr) | |
4395 | fullname = disp_name; | |
4396 | m_uiout->field_string ("fullname", fullname, | |
4397 | file_name_style.style ()); | |
4398 | } | |
c5aa993b | 4399 | } |
c906108c | 4400 | |
4a0788e0 AB |
4401 | /* For the 'info sources' command, what part of the file names should we be |
4402 | matching the user supplied regular expression against? */ | |
4403 | ||
4404 | struct filename_partial_match_opts | |
4405 | { | |
4406 | /* Only match the directory name part. */ | |
4407 | bool dirname = false; | |
4408 | ||
4409 | /* Only match the basename part. */ | |
4410 | bool basename = false; | |
4411 | }; | |
4412 | ||
28cd9371 PW |
4413 | using isrc_flag_option_def |
4414 | = gdb::option::flag_option_def<filename_partial_match_opts>; | |
4415 | ||
4416 | static const gdb::option::option_def info_sources_option_defs[] = { | |
4417 | ||
4418 | isrc_flag_option_def { | |
4419 | "dirname", | |
4420 | [] (filename_partial_match_opts *opts) { return &opts->dirname; }, | |
4421 | N_("Show only the files having a dirname matching REGEXP."), | |
4422 | }, | |
4423 | ||
4424 | isrc_flag_option_def { | |
4425 | "basename", | |
4426 | [] (filename_partial_match_opts *opts) { return &opts->basename; }, | |
4427 | N_("Show only the files having a basename matching REGEXP."), | |
4428 | }, | |
4429 | ||
4430 | }; | |
4431 | ||
4432 | /* Create an option_def_group for the "info sources" options, with | |
4433 | ISRC_OPTS as context. */ | |
4434 | ||
4435 | static inline gdb::option::option_def_group | |
4436 | make_info_sources_options_def_group (filename_partial_match_opts *isrc_opts) | |
4437 | { | |
4438 | return {{info_sources_option_defs}, isrc_opts}; | |
4439 | } | |
4440 | ||
28cd9371 PW |
4441 | /* Completer for "info sources". */ |
4442 | ||
4443 | static void | |
4444 | info_sources_command_completer (cmd_list_element *ignore, | |
4445 | completion_tracker &tracker, | |
4446 | const char *text, const char *word) | |
4447 | { | |
4448 | const auto group = make_info_sources_options_def_group (nullptr); | |
4449 | if (gdb::option::complete_options | |
4450 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
4451 | return; | |
4452 | } | |
4453 | ||
0e350a05 AB |
4454 | /* See symtab.h. */ |
4455 | ||
4456 | void | |
4457 | info_sources_worker (struct ui_out *uiout, | |
1fb1ce02 | 4458 | bool group_by_objfile, |
0e350a05 AB |
4459 | const info_sources_filter &filter) |
4460 | { | |
4461 | output_source_filename_data data (uiout, filter); | |
4462 | ||
4463 | ui_out_emit_list results_emitter (uiout, "files"); | |
4464 | gdb::optional<ui_out_emit_tuple> output_tuple; | |
4465 | gdb::optional<ui_out_emit_list> sources_list; | |
4466 | ||
bd742128 | 4467 | gdb_assert (group_by_objfile || uiout->is_mi_like_p ()); |
0e350a05 AB |
4468 | |
4469 | for (objfile *objfile : current_program_space->objfiles ()) | |
4470 | { | |
1fb1ce02 AB |
4471 | if (group_by_objfile) |
4472 | { | |
4473 | output_tuple.emplace (uiout, nullptr); | |
4474 | uiout->field_string ("filename", objfile_name (objfile)); | |
bd742128 | 4475 | uiout->text (":\n"); |
1fb1ce02 | 4476 | bool debug_fully_readin = !objfile->has_unexpanded_symtabs (); |
bd742128 | 4477 | if (uiout->is_mi_like_p ()) |
1fb1ce02 | 4478 | { |
bd742128 AB |
4479 | const char *debug_info_state; |
4480 | if (objfile_has_symbols (objfile)) | |
4481 | { | |
4482 | if (debug_fully_readin) | |
4483 | debug_info_state = "fully-read"; | |
4484 | else | |
4485 | debug_info_state = "partially-read"; | |
4486 | } | |
1fb1ce02 | 4487 | else |
bd742128 AB |
4488 | debug_info_state = "none"; |
4489 | current_uiout->field_string ("debug-info", debug_info_state); | |
1fb1ce02 AB |
4490 | } |
4491 | else | |
bd742128 AB |
4492 | { |
4493 | if (!debug_fully_readin) | |
4494 | uiout->text ("(Full debug information has not yet been read " | |
4495 | "for this file.)\n"); | |
4496 | if (!objfile_has_symbols (objfile)) | |
4497 | uiout->text ("(Objfile has no debug information.)\n"); | |
4498 | uiout->text ("\n"); | |
4499 | } | |
1fb1ce02 AB |
4500 | sources_list.emplace (uiout, "sources"); |
4501 | } | |
4502 | ||
0e350a05 AB |
4503 | for (compunit_symtab *cu : objfile->compunits ()) |
4504 | { | |
4505 | for (symtab *s : compunit_filetabs (cu)) | |
4506 | { | |
4507 | const char *file = symtab_to_filename_for_display (s); | |
4508 | const char *fullname = symtab_to_fullname (s); | |
4509 | data.output (file, fullname, true); | |
4510 | } | |
4511 | } | |
1fb1ce02 AB |
4512 | |
4513 | if (group_by_objfile) | |
4514 | { | |
4515 | objfile->map_symbol_filenames (data, true /* need_fullname */); | |
bd742128 AB |
4516 | if (data.printed_filename_p ()) |
4517 | uiout->text ("\n\n"); | |
1fb1ce02 AB |
4518 | data.reset_output (); |
4519 | sources_list.reset (); | |
4520 | output_tuple.reset (); | |
4521 | } | |
0e350a05 AB |
4522 | } |
4523 | ||
1fb1ce02 AB |
4524 | if (!group_by_objfile) |
4525 | { | |
1fb1ce02 AB |
4526 | data.reset_output (); |
4527 | map_symbol_filenames (data, true /*need_fullname*/); | |
1fb1ce02 | 4528 | } |
0e350a05 AB |
4529 | } |
4530 | ||
4a0788e0 AB |
4531 | /* Implement the 'info sources' command. */ |
4532 | ||
28cd9371 PW |
4533 | static void |
4534 | info_sources_command (const char *args, int from_tty) | |
c906108c | 4535 | { |
c906108c | 4536 | if (!have_full_symbols () && !have_partial_symbols ()) |
4a0788e0 | 4537 | error (_("No symbol table is loaded. Use the \"file\" command.")); |
28cd9371 | 4538 | |
4a0788e0 AB |
4539 | filename_partial_match_opts match_opts; |
4540 | auto group = make_info_sources_options_def_group (&match_opts); | |
28cd9371 PW |
4541 | gdb::option::process_options |
4542 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_ERROR, group); | |
9fdc877b | 4543 | |
4a0788e0 AB |
4544 | if (match_opts.dirname && match_opts.basename) |
4545 | error (_("You cannot give both -basename and -dirname to 'info sources'.")); | |
c906108c | 4546 | |
4a0788e0 | 4547 | const char *regex = nullptr; |
0e350a05 | 4548 | if (args != NULL && *args != '\000') |
4a0788e0 | 4549 | regex = args; |
28cd9371 | 4550 | |
4a0788e0 AB |
4551 | if ((match_opts.dirname || match_opts.basename) && regex == nullptr) |
4552 | error (_("Missing REGEXP for 'info sources'.")); | |
28cd9371 | 4553 | |
4a0788e0 AB |
4554 | info_sources_filter::match_on match_type; |
4555 | if (match_opts.dirname) | |
4556 | match_type = info_sources_filter::match_on::DIRNAME; | |
4557 | else if (match_opts.basename) | |
4558 | match_type = info_sources_filter::match_on::BASENAME; | |
28cd9371 | 4559 | else |
4a0788e0 AB |
4560 | match_type = info_sources_filter::match_on::FULLNAME; |
4561 | ||
4562 | info_sources_filter filter (match_type, regex); | |
bd742128 | 4563 | info_sources_worker (current_uiout, true, filter); |
c906108c SS |
4564 | } |
4565 | ||
470c0b1c AB |
4566 | /* Compare FILE against all the entries of FILENAMES. If BASENAMES is |
4567 | true compare only lbasename of FILENAMES. */ | |
fbd9ab74 | 4568 | |
470c0b1c AB |
4569 | static bool |
4570 | file_matches (const char *file, const std::vector<const char *> &filenames, | |
4571 | bool basenames) | |
c906108c | 4572 | { |
470c0b1c AB |
4573 | if (filenames.empty ()) |
4574 | return true; | |
c906108c | 4575 | |
470c0b1c | 4576 | for (const char *name : filenames) |
c906108c | 4577 | { |
470c0b1c AB |
4578 | name = (basenames ? lbasename (name) : name); |
4579 | if (compare_filenames_for_search (file, name)) | |
4580 | return true; | |
c906108c | 4581 | } |
470c0b1c AB |
4582 | |
4583 | return false; | |
c906108c SS |
4584 | } |
4585 | ||
f97a63c5 AB |
4586 | /* Helper function for std::sort on symbol_search objects. Can only sort |
4587 | symbols, not minimal symbols. */ | |
eca864fe | 4588 | |
b9c04fb2 TT |
4589 | int |
4590 | symbol_search::compare_search_syms (const symbol_search &sym_a, | |
4591 | const symbol_search &sym_b) | |
434d2d4f | 4592 | { |
b52109bc DE |
4593 | int c; |
4594 | ||
b9c04fb2 TT |
4595 | c = FILENAME_CMP (symbol_symtab (sym_a.symbol)->filename, |
4596 | symbol_symtab (sym_b.symbol)->filename); | |
b52109bc DE |
4597 | if (c != 0) |
4598 | return c; | |
434d2d4f | 4599 | |
b9c04fb2 TT |
4600 | if (sym_a.block != sym_b.block) |
4601 | return sym_a.block - sym_b.block; | |
b52109bc | 4602 | |
987012b8 | 4603 | return strcmp (sym_a.symbol->print_name (), sym_b.symbol->print_name ()); |
434d2d4f DJ |
4604 | } |
4605 | ||
12615cba PW |
4606 | /* Returns true if the type_name of symbol_type of SYM matches TREG. |
4607 | If SYM has no symbol_type or symbol_name, returns false. */ | |
4608 | ||
4609 | bool | |
4610 | treg_matches_sym_type_name (const compiled_regex &treg, | |
4611 | const struct symbol *sym) | |
4612 | { | |
4613 | struct type *sym_type; | |
4614 | std::string printed_sym_type_name; | |
4615 | ||
4616 | if (symbol_lookup_debug > 1) | |
4617 | { | |
4618 | fprintf_unfiltered (gdb_stdlog, | |
4619 | "treg_matches_sym_type_name\n sym %s\n", | |
987012b8 | 4620 | sym->natural_name ()); |
12615cba PW |
4621 | } |
4622 | ||
4623 | sym_type = SYMBOL_TYPE (sym); | |
4624 | if (sym_type == NULL) | |
4625 | return false; | |
4626 | ||
43d397ca PW |
4627 | { |
4628 | scoped_switch_to_sym_language_if_auto l (sym); | |
12615cba | 4629 | |
12615cba | 4630 | printed_sym_type_name = type_to_string (sym_type); |
43d397ca PW |
4631 | } |
4632 | ||
12615cba PW |
4633 | |
4634 | if (symbol_lookup_debug > 1) | |
4635 | { | |
4636 | fprintf_unfiltered (gdb_stdlog, | |
4637 | " sym_type_name %s\n", | |
4638 | printed_sym_type_name.c_str ()); | |
4639 | } | |
4640 | ||
4641 | ||
4642 | if (printed_sym_type_name.empty ()) | |
4643 | return false; | |
4644 | ||
4645 | return treg.exec (printed_sym_type_name.c_str (), 0, NULL, 0) == 0; | |
4646 | } | |
4647 | ||
f97a63c5 AB |
4648 | /* See symtab.h. */ |
4649 | ||
4650 | bool | |
4651 | global_symbol_searcher::is_suitable_msymbol | |
4652 | (const enum search_domain kind, const minimal_symbol *msymbol) | |
4653 | { | |
4654 | switch (MSYMBOL_TYPE (msymbol)) | |
4655 | { | |
4656 | case mst_data: | |
4657 | case mst_bss: | |
4658 | case mst_file_data: | |
4659 | case mst_file_bss: | |
4660 | return kind == VARIABLES_DOMAIN; | |
4661 | case mst_text: | |
4662 | case mst_file_text: | |
4663 | case mst_solib_trampoline: | |
4664 | case mst_text_gnu_ifunc: | |
4665 | return kind == FUNCTIONS_DOMAIN; | |
4666 | default: | |
4667 | return false; | |
4668 | } | |
4669 | } | |
4670 | ||
4671 | /* See symtab.h. */ | |
4672 | ||
4673 | bool | |
4674 | global_symbol_searcher::expand_symtabs | |
4675 | (objfile *objfile, const gdb::optional<compiled_regex> &preg) const | |
4676 | { | |
4677 | enum search_domain kind = m_kind; | |
4678 | bool found_msymbol = false; | |
4679 | ||
4d080b46 TT |
4680 | objfile->expand_symtabs_matching |
4681 | ([&] (const char *filename, bool basenames) | |
4682 | { | |
4683 | return file_matches (filename, filenames, basenames); | |
4684 | }, | |
4685 | &lookup_name_info::match_any (), | |
4686 | [&] (const char *symname) | |
4687 | { | |
4688 | return (!preg.has_value () | |
4689 | || preg->exec (symname, 0, NULL, 0) == 0); | |
4690 | }, | |
4691 | NULL, | |
03a8ea51 | 4692 | SEARCH_GLOBAL_BLOCK | SEARCH_STATIC_BLOCK, |
3bfa51a7 | 4693 | UNDEF_DOMAIN, |
4d080b46 | 4694 | kind); |
f97a63c5 AB |
4695 | |
4696 | /* Here, we search through the minimal symbol tables for functions and | |
4697 | variables that match, and force their symbols to be read. This is in | |
4698 | particular necessary for demangled variable names, which are no longer | |
4699 | put into the partial symbol tables. The symbol will then be found | |
4700 | during the scan of symtabs later. | |
4701 | ||
4702 | For functions, find_pc_symtab should succeed if we have debug info for | |
4703 | the function, for variables we have to call | |
4704 | lookup_symbol_in_objfile_from_linkage_name to determine if the | |
4705 | variable has debug info. If the lookup fails, set found_msymbol so | |
4706 | that we will rescan to print any matching symbols without debug info. | |
4707 | We only search the objfile the msymbol came from, we no longer search | |
4708 | all objfiles. In large programs (1000s of shared libs) searching all | |
4709 | objfiles is not worth the pain. */ | |
4710 | if (filenames.empty () | |
4711 | && (kind == VARIABLES_DOMAIN || kind == FUNCTIONS_DOMAIN)) | |
4712 | { | |
4713 | for (minimal_symbol *msymbol : objfile->msymbols ()) | |
4714 | { | |
4715 | QUIT; | |
4716 | ||
4717 | if (msymbol->created_by_gdb) | |
4718 | continue; | |
4719 | ||
4720 | if (is_suitable_msymbol (kind, msymbol)) | |
4721 | { | |
4722 | if (!preg.has_value () | |
4723 | || preg->exec (msymbol->natural_name (), 0, | |
4724 | NULL, 0) == 0) | |
4725 | { | |
4726 | /* An important side-effect of these lookup functions is | |
4727 | to expand the symbol table if msymbol is found, later | |
4728 | in the process we will add matching symbols or | |
4729 | msymbols to the results list, and that requires that | |
4730 | the symbols tables are expanded. */ | |
4731 | if (kind == FUNCTIONS_DOMAIN | |
4732 | ? (find_pc_compunit_symtab | |
4733 | (MSYMBOL_VALUE_ADDRESS (objfile, msymbol)) | |
4734 | == NULL) | |
4735 | : (lookup_symbol_in_objfile_from_linkage_name | |
4736 | (objfile, msymbol->linkage_name (), | |
4737 | VAR_DOMAIN) | |
4738 | .symbol == NULL)) | |
4739 | found_msymbol = true; | |
4740 | } | |
4741 | } | |
4742 | } | |
4743 | } | |
4744 | ||
4745 | return found_msymbol; | |
4746 | } | |
4747 | ||
4748 | /* See symtab.h. */ | |
4749 | ||
c2512106 | 4750 | bool |
f97a63c5 AB |
4751 | global_symbol_searcher::add_matching_symbols |
4752 | (objfile *objfile, | |
4753 | const gdb::optional<compiled_regex> &preg, | |
4754 | const gdb::optional<compiled_regex> &treg, | |
c2512106 | 4755 | std::set<symbol_search> *result_set) const |
f97a63c5 AB |
4756 | { |
4757 | enum search_domain kind = m_kind; | |
4758 | ||
4759 | /* Add matching symbols (if not already present). */ | |
4760 | for (compunit_symtab *cust : objfile->compunits ()) | |
4761 | { | |
4762 | const struct blockvector *bv = COMPUNIT_BLOCKVECTOR (cust); | |
4763 | ||
4764 | for (block_enum block : { GLOBAL_BLOCK, STATIC_BLOCK }) | |
4765 | { | |
4766 | struct block_iterator iter; | |
4767 | struct symbol *sym; | |
4768 | const struct block *b = BLOCKVECTOR_BLOCK (bv, block); | |
4769 | ||
4770 | ALL_BLOCK_SYMBOLS (b, iter, sym) | |
4771 | { | |
4772 | struct symtab *real_symtab = symbol_symtab (sym); | |
4773 | ||
4774 | QUIT; | |
4775 | ||
4776 | /* Check first sole REAL_SYMTAB->FILENAME. It does | |
4777 | not need to be a substring of symtab_to_fullname as | |
4778 | it may contain "./" etc. */ | |
4779 | if ((file_matches (real_symtab->filename, filenames, false) | |
4780 | || ((basenames_may_differ | |
4781 | || file_matches (lbasename (real_symtab->filename), | |
4782 | filenames, true)) | |
4783 | && file_matches (symtab_to_fullname (real_symtab), | |
4784 | filenames, false))) | |
4785 | && ((!preg.has_value () | |
4786 | || preg->exec (sym->natural_name (), 0, | |
4787 | NULL, 0) == 0) | |
4788 | && ((kind == VARIABLES_DOMAIN | |
4789 | && SYMBOL_CLASS (sym) != LOC_TYPEDEF | |
4790 | && SYMBOL_CLASS (sym) != LOC_UNRESOLVED | |
4791 | && SYMBOL_CLASS (sym) != LOC_BLOCK | |
4792 | /* LOC_CONST can be used for more than | |
4793 | just enums, e.g., c++ static const | |
4794 | members. We only want to skip enums | |
4795 | here. */ | |
4796 | && !(SYMBOL_CLASS (sym) == LOC_CONST | |
78134374 | 4797 | && (SYMBOL_TYPE (sym)->code () |
f97a63c5 AB |
4798 | == TYPE_CODE_ENUM)) |
4799 | && (!treg.has_value () | |
4800 | || treg_matches_sym_type_name (*treg, sym))) | |
4801 | || (kind == FUNCTIONS_DOMAIN | |
4802 | && SYMBOL_CLASS (sym) == LOC_BLOCK | |
4803 | && (!treg.has_value () | |
4804 | || treg_matches_sym_type_name (*treg, | |
4805 | sym))) | |
4806 | || (kind == TYPES_DOMAIN | |
4807 | && SYMBOL_CLASS (sym) == LOC_TYPEDEF | |
4808 | && SYMBOL_DOMAIN (sym) != MODULE_DOMAIN) | |
4809 | || (kind == MODULES_DOMAIN | |
4810 | && SYMBOL_DOMAIN (sym) == MODULE_DOMAIN | |
4811 | && SYMBOL_LINE (sym) != 0)))) | |
4812 | { | |
c2512106 AB |
4813 | if (result_set->size () < m_max_search_results) |
4814 | { | |
4815 | /* Match, insert if not already in the results. */ | |
4816 | symbol_search ss (block, sym); | |
4817 | if (result_set->find (ss) == result_set->end ()) | |
4818 | result_set->insert (ss); | |
4819 | } | |
4820 | else | |
4821 | return false; | |
f97a63c5 AB |
4822 | } |
4823 | } | |
4824 | } | |
4825 | } | |
c2512106 AB |
4826 | |
4827 | return true; | |
f97a63c5 AB |
4828 | } |
4829 | ||
4830 | /* See symtab.h. */ | |
4831 | ||
c2512106 | 4832 | bool |
f97a63c5 AB |
4833 | global_symbol_searcher::add_matching_msymbols |
4834 | (objfile *objfile, const gdb::optional<compiled_regex> &preg, | |
4835 | std::vector<symbol_search> *results) const | |
4836 | { | |
4837 | enum search_domain kind = m_kind; | |
4838 | ||
4839 | for (minimal_symbol *msymbol : objfile->msymbols ()) | |
4840 | { | |
4841 | QUIT; | |
4842 | ||
4843 | if (msymbol->created_by_gdb) | |
4844 | continue; | |
4845 | ||
4846 | if (is_suitable_msymbol (kind, msymbol)) | |
4847 | { | |
4848 | if (!preg.has_value () | |
4849 | || preg->exec (msymbol->natural_name (), 0, | |
4850 | NULL, 0) == 0) | |
4851 | { | |
4852 | /* For functions we can do a quick check of whether the | |
4853 | symbol might be found via find_pc_symtab. */ | |
4854 | if (kind != FUNCTIONS_DOMAIN | |
4855 | || (find_pc_compunit_symtab | |
4856 | (MSYMBOL_VALUE_ADDRESS (objfile, msymbol)) | |
4857 | == NULL)) | |
4858 | { | |
4859 | if (lookup_symbol_in_objfile_from_linkage_name | |
4860 | (objfile, msymbol->linkage_name (), | |
4861 | VAR_DOMAIN).symbol == NULL) | |
4862 | { | |
4863 | /* Matching msymbol, add it to the results list. */ | |
c2512106 AB |
4864 | if (results->size () < m_max_search_results) |
4865 | results->emplace_back (GLOBAL_BLOCK, msymbol, objfile); | |
4866 | else | |
4867 | return false; | |
f97a63c5 AB |
4868 | } |
4869 | } | |
4870 | } | |
4871 | } | |
4872 | } | |
12615cba | 4873 | |
c2512106 | 4874 | return true; |
434d2d4f | 4875 | } |
5bd98722 | 4876 | |
470c0b1c | 4877 | /* See symtab.h. */ |
c378eb4e | 4878 | |
b9c04fb2 | 4879 | std::vector<symbol_search> |
470c0b1c | 4880 | global_symbol_searcher::search () const |
c906108c | 4881 | { |
2d7cc5c7 | 4882 | gdb::optional<compiled_regex> preg; |
12615cba | 4883 | gdb::optional<compiled_regex> treg; |
c906108c | 4884 | |
470c0b1c | 4885 | gdb_assert (m_kind != ALL_DOMAIN); |
e8930875 | 4886 | |
470c0b1c | 4887 | if (m_symbol_name_regexp != NULL) |
c906108c | 4888 | { |
470c0b1c AB |
4889 | const char *symbol_name_regexp = m_symbol_name_regexp; |
4890 | ||
c906108c | 4891 | /* Make sure spacing is right for C++ operators. |
dda83cd7 SM |
4892 | This is just a courtesy to make the matching less sensitive |
4893 | to how many spaces the user leaves between 'operator' | |
4894 | and <TYPENAME> or <OPERATOR>. */ | |
96142726 | 4895 | const char *opend; |
470c0b1c | 4896 | const char *opname = operator_chars (symbol_name_regexp, &opend); |
433759f7 | 4897 | |
c906108c | 4898 | if (*opname) |
c5aa993b | 4899 | { |
3e43a32a | 4900 | int fix = -1; /* -1 means ok; otherwise number of |
dda83cd7 | 4901 | spaces needed. */ |
433759f7 | 4902 | |
c5aa993b JM |
4903 | if (isalpha (*opname) || *opname == '_' || *opname == '$') |
4904 | { | |
c378eb4e | 4905 | /* There should 1 space between 'operator' and 'TYPENAME'. */ |
c5aa993b JM |
4906 | if (opname[-1] != ' ' || opname[-2] == ' ') |
4907 | fix = 1; | |
4908 | } | |
4909 | else | |
4910 | { | |
c378eb4e | 4911 | /* There should 0 spaces between 'operator' and 'OPERATOR'. */ |
c5aa993b JM |
4912 | if (opname[-1] == ' ') |
4913 | fix = 0; | |
4914 | } | |
c378eb4e | 4915 | /* If wrong number of spaces, fix it. */ |
c5aa993b JM |
4916 | if (fix >= 0) |
4917 | { | |
045f55a6 | 4918 | char *tmp = (char *) alloca (8 + fix + strlen (opname) + 1); |
433759f7 | 4919 | |
c5aa993b | 4920 | sprintf (tmp, "operator%.*s%s", fix, " ", opname); |
470c0b1c | 4921 | symbol_name_regexp = tmp; |
c5aa993b JM |
4922 | } |
4923 | } | |
4924 | ||
2d7cc5c7 PA |
4925 | int cflags = REG_NOSUB | (case_sensitivity == case_sensitive_off |
4926 | ? REG_ICASE : 0); | |
470c0b1c AB |
4927 | preg.emplace (symbol_name_regexp, cflags, |
4928 | _("Invalid regexp")); | |
c906108c SS |
4929 | } |
4930 | ||
470c0b1c | 4931 | if (m_symbol_type_regexp != NULL) |
12615cba PW |
4932 | { |
4933 | int cflags = REG_NOSUB | (case_sensitivity == case_sensitive_off | |
4934 | ? REG_ICASE : 0); | |
470c0b1c AB |
4935 | treg.emplace (m_symbol_type_regexp, cflags, |
4936 | _("Invalid regexp")); | |
12615cba PW |
4937 | } |
4938 | ||
f97a63c5 | 4939 | bool found_msymbol = false; |
c2512106 | 4940 | std::set<symbol_search> result_set; |
2030c079 | 4941 | for (objfile *objfile : current_program_space->objfiles ()) |
d8aeb77f | 4942 | { |
f97a63c5 AB |
4943 | /* Expand symtabs within objfile that possibly contain matching |
4944 | symbols. */ | |
4945 | found_msymbol |= expand_symtabs (objfile, preg); | |
4946 | ||
c2512106 AB |
4947 | /* Find matching symbols within OBJFILE and add them in to the |
4948 | RESULT_SET set. Use a set here so that we can easily detect | |
4949 | duplicates as we go, and can therefore track how many unique | |
4950 | matches we have found so far. */ | |
4951 | if (!add_matching_symbols (objfile, preg, treg, &result_set)) | |
4952 | break; | |
d8aeb77f | 4953 | } |
c906108c | 4954 | |
c2512106 AB |
4955 | /* Convert the result set into a sorted result list, as std::set is |
4956 | defined to be sorted then no explicit call to std::sort is needed. */ | |
4957 | std::vector<symbol_search> result (result_set.begin (), result_set.end ()); | |
b52109bc | 4958 | |
470c0b1c | 4959 | /* If there are no debug symbols, then add matching minsyms. But if the |
f97a63c5 AB |
4960 | user wants to see symbols matching a type regexp, then never give a |
4961 | minimal symbol, as we assume that a minimal symbol does not have a | |
4962 | type. */ | |
4963 | if ((found_msymbol || (filenames.empty () && m_kind == VARIABLES_DOMAIN)) | |
470c0b1c | 4964 | && !m_exclude_minsyms |
a8462bbf | 4965 | && !treg.has_value ()) |
c906108c | 4966 | { |
f97a63c5 | 4967 | gdb_assert (m_kind == VARIABLES_DOMAIN || m_kind == FUNCTIONS_DOMAIN); |
2030c079 | 4968 | for (objfile *objfile : current_program_space->objfiles ()) |
c2512106 AB |
4969 | if (!add_matching_msymbols (objfile, preg, &result)) |
4970 | break; | |
c906108c SS |
4971 | } |
4972 | ||
b9c04fb2 | 4973 | return result; |
c906108c SS |
4974 | } |
4975 | ||
5f512a7d | 4976 | /* See symtab.h. */ |
c378eb4e | 4977 | |
5f512a7d AB |
4978 | std::string |
4979 | symbol_to_info_string (struct symbol *sym, int block, | |
4980 | enum search_domain kind) | |
c906108c | 4981 | { |
5f512a7d | 4982 | std::string str; |
05cba821 | 4983 | |
5f512a7d | 4984 | gdb_assert (block == GLOBAL_BLOCK || block == STATIC_BLOCK); |
b744723f | 4985 | |
176620f1 | 4986 | if (kind != TYPES_DOMAIN && block == STATIC_BLOCK) |
5f512a7d | 4987 | str += "static "; |
c5aa993b | 4988 | |
c378eb4e | 4989 | /* Typedef that is not a C++ class. */ |
176620f1 EZ |
4990 | if (kind == TYPES_DOMAIN |
4991 | && SYMBOL_DOMAIN (sym) != STRUCT_DOMAIN) | |
eb86c5e2 | 4992 | { |
5f512a7d AB |
4993 | string_file tmp_stream; |
4994 | ||
eb86c5e2 AB |
4995 | /* FIXME: For C (and C++) we end up with a difference in output here |
4996 | between how a typedef is printed, and non-typedefs are printed. | |
4997 | The TYPEDEF_PRINT code places a ";" at the end in an attempt to | |
4998 | appear C-like, while TYPE_PRINT doesn't. | |
4999 | ||
5000 | For the struct printing case below, things are worse, we force | |
5001 | printing of the ";" in this function, which is going to be wrong | |
5002 | for languages that don't require a ";" between statements. */ | |
78134374 | 5003 | if (SYMBOL_TYPE (sym)->code () == TYPE_CODE_TYPEDEF) |
5f512a7d | 5004 | typedef_print (SYMBOL_TYPE (sym), sym, &tmp_stream); |
eb86c5e2 | 5005 | else |
5f512a7d AB |
5006 | type_print (SYMBOL_TYPE (sym), "", &tmp_stream, -1); |
5007 | str += tmp_stream.string (); | |
eb86c5e2 | 5008 | } |
c378eb4e | 5009 | /* variable, func, or typedef-that-is-c++-class. */ |
d50bd42b DE |
5010 | else if (kind < TYPES_DOMAIN |
5011 | || (kind == TYPES_DOMAIN | |
5012 | && SYMBOL_DOMAIN (sym) == STRUCT_DOMAIN)) | |
c906108c | 5013 | { |
5f512a7d AB |
5014 | string_file tmp_stream; |
5015 | ||
c906108c | 5016 | type_print (SYMBOL_TYPE (sym), |
c5aa993b | 5017 | (SYMBOL_CLASS (sym) == LOC_TYPEDEF |
987012b8 | 5018 | ? "" : sym->print_name ()), |
5f512a7d | 5019 | &tmp_stream, 0); |
c906108c | 5020 | |
5f512a7d AB |
5021 | str += tmp_stream.string (); |
5022 | str += ";"; | |
c906108c | 5023 | } |
59c35742 AB |
5024 | /* Printing of modules is currently done here, maybe at some future |
5025 | point we might want a language specific method to print the module | |
5026 | symbol so that we can customise the output more. */ | |
5027 | else if (kind == MODULES_DOMAIN) | |
5f512a7d AB |
5028 | str += sym->print_name (); |
5029 | ||
5030 | return str; | |
5031 | } | |
5032 | ||
5033 | /* Helper function for symbol info commands, for example 'info functions', | |
5034 | 'info variables', etc. KIND is the kind of symbol we searched for, and | |
5035 | BLOCK is the type of block the symbols was found in, either GLOBAL_BLOCK | |
5036 | or STATIC_BLOCK. SYM is the symbol we found. If LAST is not NULL, | |
5037 | print file and line number information for the symbol as well. Skip | |
5038 | printing the filename if it matches LAST. */ | |
5039 | ||
5040 | static void | |
5041 | print_symbol_info (enum search_domain kind, | |
5042 | struct symbol *sym, | |
5043 | int block, const char *last) | |
5044 | { | |
5045 | scoped_switch_to_sym_language_if_auto l (sym); | |
5046 | struct symtab *s = symbol_symtab (sym); | |
5047 | ||
5048 | if (last != NULL) | |
5049 | { | |
5050 | const char *s_filename = symtab_to_filename_for_display (s); | |
5051 | ||
5052 | if (filename_cmp (last, s_filename) != 0) | |
5053 | { | |
5054 | printf_filtered (_("\nFile %ps:\n"), | |
5055 | styled_string (file_name_style.style (), | |
5056 | s_filename)); | |
5057 | } | |
5058 | ||
5059 | if (SYMBOL_LINE (sym) != 0) | |
5060 | printf_filtered ("%d:\t", SYMBOL_LINE (sym)); | |
5061 | else | |
5062 | puts_filtered ("\t"); | |
5063 | } | |
5064 | ||
5065 | std::string str = symbol_to_info_string (sym, block, kind); | |
5066 | printf_filtered ("%s\n", str.c_str ()); | |
c906108c SS |
5067 | } |
5068 | ||
5069 | /* This help function for symtab_symbol_info() prints information | |
c378eb4e MS |
5070 | for non-debugging symbols to gdb_stdout. */ |
5071 | ||
c906108c | 5072 | static void |
7c7b6655 | 5073 | print_msymbol_info (struct bound_minimal_symbol msymbol) |
c906108c | 5074 | { |
08feed99 | 5075 | struct gdbarch *gdbarch = msymbol.objfile->arch (); |
3ac4495a MS |
5076 | char *tmp; |
5077 | ||
d80b854b | 5078 | if (gdbarch_addr_bit (gdbarch) <= 32) |
77e371c0 | 5079 | tmp = hex_string_custom (BMSYMBOL_VALUE_ADDRESS (msymbol) |
bb599908 PH |
5080 | & (CORE_ADDR) 0xffffffff, |
5081 | 8); | |
3ac4495a | 5082 | else |
77e371c0 | 5083 | tmp = hex_string_custom (BMSYMBOL_VALUE_ADDRESS (msymbol), |
bb599908 | 5084 | 16); |
6a831f06 PA |
5085 | |
5086 | ui_file_style sym_style = (msymbol.minsym->text_p () | |
5087 | ? function_name_style.style () | |
5088 | : ui_file_style ()); | |
5089 | ||
5090 | printf_filtered (_("%ps %ps\n"), | |
5091 | styled_string (address_style.style (), tmp), | |
c9d95fa3 | 5092 | styled_string (sym_style, msymbol.minsym->print_name ())); |
c906108c SS |
5093 | } |
5094 | ||
5095 | /* This is the guts of the commands "info functions", "info types", and | |
c378eb4e | 5096 | "info variables". It calls search_symbols to find all matches and then |
c906108c | 5097 | print_[m]symbol_info to print out some useful information about the |
c378eb4e MS |
5098 | matches. */ |
5099 | ||
c906108c | 5100 | static void |
4acfdd20 | 5101 | symtab_symbol_info (bool quiet, bool exclude_minsyms, |
12615cba PW |
5102 | const char *regexp, enum search_domain kind, |
5103 | const char *t_regexp, int from_tty) | |
c906108c | 5104 | { |
bc043ef3 | 5105 | static const char * const classnames[] = |
59c35742 | 5106 | {"variable", "function", "type", "module"}; |
c7dcbf88 | 5107 | const char *last_filename = ""; |
c906108c SS |
5108 | int first = 1; |
5109 | ||
59c35742 | 5110 | gdb_assert (kind != ALL_DOMAIN); |
e8930875 | 5111 | |
b16507e0 AB |
5112 | if (regexp != nullptr && *regexp == '\0') |
5113 | regexp = nullptr; | |
5114 | ||
470c0b1c AB |
5115 | global_symbol_searcher spec (kind, regexp); |
5116 | spec.set_symbol_type_regexp (t_regexp); | |
5117 | spec.set_exclude_minsyms (exclude_minsyms); | |
5118 | std::vector<symbol_search> symbols = spec.search (); | |
c906108c | 5119 | |
12615cba PW |
5120 | if (!quiet) |
5121 | { | |
5122 | if (regexp != NULL) | |
5123 | { | |
5124 | if (t_regexp != NULL) | |
5125 | printf_filtered | |
5126 | (_("All %ss matching regular expression \"%s\"" | |
0c95f9ed | 5127 | " with type matching regular expression \"%s\":\n"), |
12615cba PW |
5128 | classnames[kind], regexp, t_regexp); |
5129 | else | |
5130 | printf_filtered (_("All %ss matching regular expression \"%s\":\n"), | |
5131 | classnames[kind], regexp); | |
5132 | } | |
5133 | else | |
5134 | { | |
5135 | if (t_regexp != NULL) | |
5136 | printf_filtered | |
5137 | (_("All defined %ss" | |
0c95f9ed | 5138 | " with type matching regular expression \"%s\" :\n"), |
12615cba PW |
5139 | classnames[kind], t_regexp); |
5140 | else | |
5141 | printf_filtered (_("All defined %ss:\n"), classnames[kind]); | |
5142 | } | |
5143 | } | |
c906108c | 5144 | |
b9c04fb2 | 5145 | for (const symbol_search &p : symbols) |
c906108c SS |
5146 | { |
5147 | QUIT; | |
5148 | ||
b9c04fb2 | 5149 | if (p.msymbol.minsym != NULL) |
c5aa993b JM |
5150 | { |
5151 | if (first) | |
5152 | { | |
12615cba PW |
5153 | if (!quiet) |
5154 | printf_filtered (_("\nNon-debugging symbols:\n")); | |
c5aa993b JM |
5155 | first = 0; |
5156 | } | |
b9c04fb2 | 5157 | print_msymbol_info (p.msymbol); |
c5aa993b | 5158 | } |
c906108c | 5159 | else |
c5aa993b JM |
5160 | { |
5161 | print_symbol_info (kind, | |
b9c04fb2 TT |
5162 | p.symbol, |
5163 | p.block, | |
c5aa993b | 5164 | last_filename); |
d01060f0 | 5165 | last_filename |
b9c04fb2 | 5166 | = symtab_to_filename_for_display (symbol_symtab (p.symbol)); |
c5aa993b | 5167 | } |
c906108c | 5168 | } |
c906108c SS |
5169 | } |
5170 | ||
4acfdd20 AB |
5171 | /* Structure to hold the values of the options used by the 'info variables' |
5172 | and 'info functions' commands. These correspond to the -q, -t, and -n | |
5173 | options. */ | |
5174 | ||
095252be | 5175 | struct info_vars_funcs_options |
4acfdd20 | 5176 | { |
491144b5 CB |
5177 | bool quiet = false; |
5178 | bool exclude_minsyms = false; | |
e0700ba4 | 5179 | std::string type_regexp; |
4acfdd20 AB |
5180 | }; |
5181 | ||
5182 | /* The options used by the 'info variables' and 'info functions' | |
5183 | commands. */ | |
5184 | ||
095252be AT |
5185 | static const gdb::option::option_def info_vars_funcs_options_defs[] = { |
5186 | gdb::option::boolean_option_def<info_vars_funcs_options> { | |
4acfdd20 | 5187 | "q", |
095252be | 5188 | [] (info_vars_funcs_options *opt) { return &opt->quiet; }, |
4acfdd20 AB |
5189 | nullptr, /* show_cmd_cb */ |
5190 | nullptr /* set_doc */ | |
5191 | }, | |
5192 | ||
095252be | 5193 | gdb::option::boolean_option_def<info_vars_funcs_options> { |
4acfdd20 | 5194 | "n", |
095252be | 5195 | [] (info_vars_funcs_options *opt) { return &opt->exclude_minsyms; }, |
4acfdd20 AB |
5196 | nullptr, /* show_cmd_cb */ |
5197 | nullptr /* set_doc */ | |
5198 | }, | |
5199 | ||
095252be | 5200 | gdb::option::string_option_def<info_vars_funcs_options> { |
4acfdd20 | 5201 | "t", |
e0700ba4 | 5202 | [] (info_vars_funcs_options *opt) { return &opt->type_regexp; }, |
4acfdd20 AB |
5203 | nullptr, /* show_cmd_cb */ |
5204 | nullptr /* set_doc */ | |
5205 | } | |
5206 | }; | |
5207 | ||
5208 | /* Returns the option group used by 'info variables' and 'info | |
5209 | functions'. */ | |
5210 | ||
5211 | static gdb::option::option_def_group | |
095252be | 5212 | make_info_vars_funcs_options_def_group (info_vars_funcs_options *opts) |
4acfdd20 | 5213 | { |
095252be | 5214 | return {{info_vars_funcs_options_defs}, opts}; |
4acfdd20 AB |
5215 | } |
5216 | ||
5217 | /* Command completer for 'info variables' and 'info functions'. */ | |
5218 | ||
5219 | static void | |
095252be AT |
5220 | info_vars_funcs_command_completer (struct cmd_list_element *ignore, |
5221 | completion_tracker &tracker, | |
5222 | const char *text, const char * /* word */) | |
4acfdd20 AB |
5223 | { |
5224 | const auto group | |
095252be | 5225 | = make_info_vars_funcs_options_def_group (nullptr); |
4acfdd20 AB |
5226 | if (gdb::option::complete_options |
5227 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
5228 | return; | |
5229 | ||
5230 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
5231 | symbol_completer (ignore, tracker, text, word); | |
5232 | } | |
5233 | ||
b16507e0 AB |
5234 | /* Implement the 'info variables' command. */ |
5235 | ||
0b39b52e | 5236 | static void |
12615cba | 5237 | info_variables_command (const char *args, int from_tty) |
0b39b52e | 5238 | { |
095252be AT |
5239 | info_vars_funcs_options opts; |
5240 | auto grp = make_info_vars_funcs_options_def_group (&opts); | |
4acfdd20 AB |
5241 | gdb::option::process_options |
5242 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5243 | if (args != nullptr && *args == '\0') | |
5244 | args = nullptr; | |
b16507e0 | 5245 | |
e0700ba4 SM |
5246 | symtab_symbol_info |
5247 | (opts.quiet, opts.exclude_minsyms, args, VARIABLES_DOMAIN, | |
5248 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
5249 | from_tty); | |
0b39b52e TT |
5250 | } |
5251 | ||
b16507e0 | 5252 | /* Implement the 'info functions' command. */ |
12615cba | 5253 | |
c906108c | 5254 | static void |
12615cba | 5255 | info_functions_command (const char *args, int from_tty) |
c906108c | 5256 | { |
095252be AT |
5257 | info_vars_funcs_options opts; |
5258 | ||
5259 | auto grp = make_info_vars_funcs_options_def_group (&opts); | |
4acfdd20 AB |
5260 | gdb::option::process_options |
5261 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5262 | if (args != nullptr && *args == '\0') | |
5263 | args = nullptr; | |
b16507e0 | 5264 | |
e0700ba4 SM |
5265 | symtab_symbol_info |
5266 | (opts.quiet, opts.exclude_minsyms, args, FUNCTIONS_DOMAIN, | |
5267 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
5268 | from_tty); | |
c906108c SS |
5269 | } |
5270 | ||
a8eab7c6 AB |
5271 | /* Holds the -q option for the 'info types' command. */ |
5272 | ||
5273 | struct info_types_options | |
5274 | { | |
491144b5 | 5275 | bool quiet = false; |
a8eab7c6 AB |
5276 | }; |
5277 | ||
5278 | /* The options used by the 'info types' command. */ | |
5279 | ||
5280 | static const gdb::option::option_def info_types_options_defs[] = { | |
5281 | gdb::option::boolean_option_def<info_types_options> { | |
5282 | "q", | |
5283 | [] (info_types_options *opt) { return &opt->quiet; }, | |
5284 | nullptr, /* show_cmd_cb */ | |
5285 | nullptr /* set_doc */ | |
5286 | } | |
5287 | }; | |
5288 | ||
5289 | /* Returns the option group used by 'info types'. */ | |
5290 | ||
5291 | static gdb::option::option_def_group | |
5292 | make_info_types_options_def_group (info_types_options *opts) | |
5293 | { | |
5294 | return {{info_types_options_defs}, opts}; | |
5295 | } | |
5296 | ||
5297 | /* Implement the 'info types' command. */ | |
357e46e7 | 5298 | |
c906108c | 5299 | static void |
a8eab7c6 | 5300 | info_types_command (const char *args, int from_tty) |
c906108c | 5301 | { |
a8eab7c6 AB |
5302 | info_types_options opts; |
5303 | ||
5304 | auto grp = make_info_types_options_def_group (&opts); | |
5305 | gdb::option::process_options | |
5306 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5307 | if (args != nullptr && *args == '\0') | |
5308 | args = nullptr; | |
4acfdd20 | 5309 | symtab_symbol_info (opts.quiet, false, args, TYPES_DOMAIN, NULL, from_tty); |
a8eab7c6 AB |
5310 | } |
5311 | ||
5312 | /* Command completer for 'info types' command. */ | |
5313 | ||
5314 | static void | |
5315 | info_types_command_completer (struct cmd_list_element *ignore, | |
5316 | completion_tracker &tracker, | |
5317 | const char *text, const char * /* word */) | |
5318 | { | |
5319 | const auto group | |
5320 | = make_info_types_options_def_group (nullptr); | |
5321 | if (gdb::option::complete_options | |
5322 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
5323 | return; | |
5324 | ||
5325 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
5326 | symbol_completer (ignore, tracker, text, word); | |
c906108c SS |
5327 | } |
5328 | ||
59c35742 AB |
5329 | /* Implement the 'info modules' command. */ |
5330 | ||
5331 | static void | |
5332 | info_modules_command (const char *args, int from_tty) | |
5333 | { | |
5334 | info_types_options opts; | |
5335 | ||
5336 | auto grp = make_info_types_options_def_group (&opts); | |
5337 | gdb::option::process_options | |
5338 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5339 | if (args != nullptr && *args == '\0') | |
5340 | args = nullptr; | |
5341 | symtab_symbol_info (opts.quiet, true, args, MODULES_DOMAIN, NULL, | |
5342 | from_tty); | |
5343 | } | |
5344 | ||
c906108c | 5345 | static void |
0b39b52e | 5346 | rbreak_command (const char *regexp, int from_tty) |
c906108c | 5347 | { |
c80049d3 | 5348 | std::string string; |
470c0b1c | 5349 | const char *file_name = nullptr; |
c906108c | 5350 | |
470c0b1c | 5351 | if (regexp != nullptr) |
8bd10a10 | 5352 | { |
0b39b52e | 5353 | const char *colon = strchr (regexp, ':'); |
433759f7 | 5354 | |
2c074f49 HD |
5355 | /* Ignore the colon if it is part of a Windows drive. */ |
5356 | if (HAS_DRIVE_SPEC (regexp) | |
5357 | && (regexp[2] == '/' || regexp[2] == '\\')) | |
5358 | colon = strchr (STRIP_DRIVE_SPEC (regexp), ':'); | |
5359 | ||
8bd10a10 CM |
5360 | if (colon && *(colon + 1) != ':') |
5361 | { | |
5362 | int colon_index; | |
96142726 | 5363 | char *local_name; |
8bd10a10 CM |
5364 | |
5365 | colon_index = colon - regexp; | |
224c3ddb | 5366 | local_name = (char *) alloca (colon_index + 1); |
96142726 TT |
5367 | memcpy (local_name, regexp, colon_index); |
5368 | local_name[colon_index--] = 0; | |
5369 | while (isspace (local_name[colon_index])) | |
5370 | local_name[colon_index--] = 0; | |
5371 | file_name = local_name; | |
529480d0 | 5372 | regexp = skip_spaces (colon + 1); |
8bd10a10 CM |
5373 | } |
5374 | } | |
5375 | ||
470c0b1c AB |
5376 | global_symbol_searcher spec (FUNCTIONS_DOMAIN, regexp); |
5377 | if (file_name != nullptr) | |
5378 | spec.filenames.push_back (file_name); | |
5379 | std::vector<symbol_search> symbols = spec.search (); | |
c906108c | 5380 | |
c80049d3 | 5381 | scoped_rbreak_breakpoints finalize; |
b9c04fb2 | 5382 | for (const symbol_search &p : symbols) |
c906108c | 5383 | { |
b9c04fb2 | 5384 | if (p.msymbol.minsym == NULL) |
c5aa993b | 5385 | { |
b9c04fb2 | 5386 | struct symtab *symtab = symbol_symtab (p.symbol); |
d01060f0 | 5387 | const char *fullname = symtab_to_fullname (symtab); |
05cba821 | 5388 | |
c80049d3 | 5389 | string = string_printf ("%s:'%s'", fullname, |
987012b8 | 5390 | p.symbol->linkage_name ()); |
c80049d3 | 5391 | break_command (&string[0], from_tty); |
c7dcbf88 | 5392 | print_symbol_info (FUNCTIONS_DOMAIN, p.symbol, p.block, NULL); |
c5aa993b | 5393 | } |
c906108c | 5394 | else |
c5aa993b | 5395 | { |
c80049d3 | 5396 | string = string_printf ("'%s'", |
c9d95fa3 | 5397 | p.msymbol.minsym->linkage_name ()); |
6214f497 | 5398 | |
c80049d3 | 5399 | break_command (&string[0], from_tty); |
c5aa993b | 5400 | printf_filtered ("<function, no debug info> %s;\n", |
c9d95fa3 | 5401 | p.msymbol.minsym->print_name ()); |
c5aa993b | 5402 | } |
c906108c | 5403 | } |
c906108c | 5404 | } |
c906108c | 5405 | \f |
c5aa993b | 5406 | |
c62446b1 | 5407 | /* Evaluate if SYMNAME matches LOOKUP_NAME. */ |
1976171a JK |
5408 | |
5409 | static int | |
c62446b1 | 5410 | compare_symbol_name (const char *symbol_name, language symbol_language, |
b5ec771e | 5411 | const lookup_name_info &lookup_name, |
b5ec771e PA |
5412 | completion_match_result &match_res) |
5413 | { | |
d4c2a405 | 5414 | const language_defn *lang = language_def (symbol_language); |
1976171a | 5415 | |
b5ec771e | 5416 | symbol_name_matcher_ftype *name_match |
c9debfb9 | 5417 | = lang->get_symbol_name_matcher (lookup_name); |
1976171a | 5418 | |
a207cff2 | 5419 | return name_match (symbol_name, lookup_name, &match_res); |
1976171a JK |
5420 | } |
5421 | ||
b5ec771e | 5422 | /* See symtab.h. */ |
c906108c | 5423 | |
e08bd6c5 | 5424 | bool |
eb3ff9a5 | 5425 | completion_list_add_name (completion_tracker &tracker, |
b5ec771e | 5426 | language symbol_language, |
eb3ff9a5 | 5427 | const char *symname, |
b5ec771e | 5428 | const lookup_name_info &lookup_name, |
0d5cff50 | 5429 | const char *text, const char *word) |
c906108c | 5430 | { |
b5ec771e PA |
5431 | completion_match_result &match_res |
5432 | = tracker.reset_completion_match_result (); | |
5433 | ||
c378eb4e | 5434 | /* Clip symbols that cannot match. */ |
c62446b1 | 5435 | if (!compare_symbol_name (symname, symbol_language, lookup_name, match_res)) |
e08bd6c5 | 5436 | return false; |
c906108c | 5437 | |
b5ec771e PA |
5438 | /* Refresh SYMNAME from the match string. It's potentially |
5439 | different depending on language. (E.g., on Ada, the match may be | |
5440 | the encoded symbol name wrapped in "<>"). */ | |
5441 | symname = match_res.match.match (); | |
5442 | gdb_assert (symname != NULL); | |
5443 | ||
c906108c | 5444 | /* We have a match for a completion, so add SYMNAME to the current list |
c378eb4e | 5445 | of matches. Note that the name is moved to freshly malloc'd space. */ |
c906108c SS |
5446 | |
5447 | { | |
60a20c19 PA |
5448 | gdb::unique_xmalloc_ptr<char> completion |
5449 | = make_completion_match_str (symname, text, word); | |
ef0b411a | 5450 | |
a207cff2 PA |
5451 | /* Here we pass the match-for-lcd object to add_completion. Some |
5452 | languages match the user text against substrings of symbol | |
5453 | names in some cases. E.g., in C++, "b push_ba" completes to | |
5454 | "std::vector::push_back", "std::string::push_back", etc., and | |
5455 | in this case we want the completion lowest common denominator | |
5456 | to be "push_back" instead of "std::". */ | |
5457 | tracker.add_completion (std::move (completion), | |
a22ecf70 | 5458 | &match_res.match_for_lcd, text, word); |
c906108c | 5459 | } |
e08bd6c5 PA |
5460 | |
5461 | return true; | |
c906108c SS |
5462 | } |
5463 | ||
6da67eb1 PA |
5464 | /* completion_list_add_name wrapper for struct symbol. */ |
5465 | ||
5466 | static void | |
eb3ff9a5 PA |
5467 | completion_list_add_symbol (completion_tracker &tracker, |
5468 | symbol *sym, | |
b5ec771e | 5469 | const lookup_name_info &lookup_name, |
6da67eb1 PA |
5470 | const char *text, const char *word) |
5471 | { | |
e08bd6c5 PA |
5472 | if (!completion_list_add_name (tracker, sym->language (), |
5473 | sym->natural_name (), | |
5474 | lookup_name, text, word)) | |
5475 | return; | |
19a2740f AB |
5476 | |
5477 | /* C++ function symbols include the parameters within both the msymbol | |
5478 | name and the symbol name. The problem is that the msymbol name will | |
5479 | describe the parameters in the most basic way, with typedefs stripped | |
5480 | out, while the symbol name will represent the types as they appear in | |
5481 | the program. This means we will see duplicate entries in the | |
5482 | completion tracker. The following converts the symbol name back to | |
5483 | the msymbol name and removes the msymbol name from the completion | |
5484 | tracker. */ | |
5485 | if (sym->language () == language_cplus | |
5486 | && SYMBOL_DOMAIN (sym) == VAR_DOMAIN | |
5487 | && SYMBOL_CLASS (sym) == LOC_BLOCK) | |
5488 | { | |
5489 | /* The call to canonicalize returns the empty string if the input | |
5490 | string is already in canonical form, thanks to this we don't | |
5491 | remove the symbol we just added above. */ | |
596dc4ad | 5492 | gdb::unique_xmalloc_ptr<char> str |
19a2740f | 5493 | = cp_canonicalize_string_no_typedefs (sym->natural_name ()); |
596dc4ad TT |
5494 | if (str != nullptr) |
5495 | tracker.remove_completion (str.get ()); | |
19a2740f | 5496 | } |
6da67eb1 PA |
5497 | } |
5498 | ||
5499 | /* completion_list_add_name wrapper for struct minimal_symbol. */ | |
5500 | ||
5501 | static void | |
eb3ff9a5 PA |
5502 | completion_list_add_msymbol (completion_tracker &tracker, |
5503 | minimal_symbol *sym, | |
b5ec771e | 5504 | const lookup_name_info &lookup_name, |
6da67eb1 PA |
5505 | const char *text, const char *word) |
5506 | { | |
c1b5c1eb | 5507 | completion_list_add_name (tracker, sym->language (), |
c9d95fa3 | 5508 | sym->natural_name (), |
1b026119 | 5509 | lookup_name, text, word); |
6da67eb1 PA |
5510 | } |
5511 | ||
b5ec771e | 5512 | |
69636828 AF |
5513 | /* ObjC: In case we are completing on a selector, look as the msymbol |
5514 | again and feed all the selectors into the mill. */ | |
5515 | ||
5516 | static void | |
eb3ff9a5 PA |
5517 | completion_list_objc_symbol (completion_tracker &tracker, |
5518 | struct minimal_symbol *msymbol, | |
b5ec771e | 5519 | const lookup_name_info &lookup_name, |
0d5cff50 | 5520 | const char *text, const char *word) |
69636828 AF |
5521 | { |
5522 | static char *tmp = NULL; | |
5523 | static unsigned int tmplen = 0; | |
9af17804 | 5524 | |
0d5cff50 | 5525 | const char *method, *category, *selector; |
69636828 | 5526 | char *tmp2 = NULL; |
9af17804 | 5527 | |
c9d95fa3 | 5528 | method = msymbol->natural_name (); |
69636828 AF |
5529 | |
5530 | /* Is it a method? */ | |
5531 | if ((method[0] != '-') && (method[0] != '+')) | |
5532 | return; | |
5533 | ||
1b026119 | 5534 | if (text[0] == '[') |
69636828 | 5535 | /* Complete on shortened method method. */ |
b5ec771e PA |
5536 | completion_list_add_name (tracker, language_objc, |
5537 | method + 1, | |
5538 | lookup_name, | |
1b026119 | 5539 | text, word); |
9af17804 | 5540 | |
69636828 AF |
5541 | while ((strlen (method) + 1) >= tmplen) |
5542 | { | |
5543 | if (tmplen == 0) | |
5544 | tmplen = 1024; | |
5545 | else | |
5546 | tmplen *= 2; | |
224c3ddb | 5547 | tmp = (char *) xrealloc (tmp, tmplen); |
69636828 AF |
5548 | } |
5549 | selector = strchr (method, ' '); | |
5550 | if (selector != NULL) | |
5551 | selector++; | |
9af17804 | 5552 | |
69636828 | 5553 | category = strchr (method, '('); |
9af17804 | 5554 | |
69636828 AF |
5555 | if ((category != NULL) && (selector != NULL)) |
5556 | { | |
5557 | memcpy (tmp, method, (category - method)); | |
5558 | tmp[category - method] = ' '; | |
5559 | memcpy (tmp + (category - method) + 1, selector, strlen (selector) + 1); | |
b5ec771e | 5560 | completion_list_add_name (tracker, language_objc, tmp, |
1b026119 PA |
5561 | lookup_name, text, word); |
5562 | if (text[0] == '[') | |
b5ec771e | 5563 | completion_list_add_name (tracker, language_objc, tmp + 1, |
1b026119 | 5564 | lookup_name, text, word); |
69636828 | 5565 | } |
9af17804 | 5566 | |
69636828 AF |
5567 | if (selector != NULL) |
5568 | { | |
5569 | /* Complete on selector only. */ | |
5570 | strcpy (tmp, selector); | |
5571 | tmp2 = strchr (tmp, ']'); | |
5572 | if (tmp2 != NULL) | |
5573 | *tmp2 = '\0'; | |
9af17804 | 5574 | |
b5ec771e | 5575 | completion_list_add_name (tracker, language_objc, tmp, |
1b026119 | 5576 | lookup_name, text, word); |
69636828 AF |
5577 | } |
5578 | } | |
5579 | ||
5580 | /* Break the non-quoted text based on the characters which are in | |
c378eb4e | 5581 | symbols. FIXME: This should probably be language-specific. */ |
69636828 | 5582 | |
6f937416 PA |
5583 | static const char * |
5584 | language_search_unquoted_string (const char *text, const char *p) | |
69636828 AF |
5585 | { |
5586 | for (; p > text; --p) | |
5587 | { | |
5588 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0') | |
5589 | continue; | |
5590 | else | |
5591 | { | |
5592 | if ((current_language->la_language == language_objc)) | |
5593 | { | |
c378eb4e | 5594 | if (p[-1] == ':') /* Might be part of a method name. */ |
69636828 AF |
5595 | continue; |
5596 | else if (p[-1] == '[' && (p[-2] == '-' || p[-2] == '+')) | |
c378eb4e | 5597 | p -= 2; /* Beginning of a method name. */ |
69636828 | 5598 | else if (p[-1] == ' ' || p[-1] == '(' || p[-1] == ')') |
c378eb4e | 5599 | { /* Might be part of a method name. */ |
6f937416 | 5600 | const char *t = p; |
69636828 AF |
5601 | |
5602 | /* Seeing a ' ' or a '(' is not conclusive evidence | |
5603 | that we are in the middle of a method name. However, | |
5604 | finding "-[" or "+[" should be pretty un-ambiguous. | |
5605 | Unfortunately we have to find it now to decide. */ | |
5606 | ||
5607 | while (t > text) | |
5608 | if (isalnum (t[-1]) || t[-1] == '_' || | |
5609 | t[-1] == ' ' || t[-1] == ':' || | |
5610 | t[-1] == '(' || t[-1] == ')') | |
5611 | --t; | |
5612 | else | |
5613 | break; | |
5614 | ||
5615 | if (t[-1] == '[' && (t[-2] == '-' || t[-2] == '+')) | |
c378eb4e MS |
5616 | p = t - 2; /* Method name detected. */ |
5617 | /* Else we leave with p unchanged. */ | |
69636828 AF |
5618 | } |
5619 | } | |
5620 | break; | |
5621 | } | |
5622 | } | |
5623 | return p; | |
5624 | } | |
5625 | ||
edb3359d | 5626 | static void |
eb3ff9a5 PA |
5627 | completion_list_add_fields (completion_tracker &tracker, |
5628 | struct symbol *sym, | |
b5ec771e | 5629 | const lookup_name_info &lookup_name, |
eb3ff9a5 | 5630 | const char *text, const char *word) |
edb3359d DJ |
5631 | { |
5632 | if (SYMBOL_CLASS (sym) == LOC_TYPEDEF) | |
5633 | { | |
5634 | struct type *t = SYMBOL_TYPE (sym); | |
78134374 | 5635 | enum type_code c = t->code (); |
edb3359d DJ |
5636 | int j; |
5637 | ||
5638 | if (c == TYPE_CODE_UNION || c == TYPE_CODE_STRUCT) | |
1f704f76 | 5639 | for (j = TYPE_N_BASECLASSES (t); j < t->num_fields (); j++) |
33d16dd9 | 5640 | if (t->field (j).name ()) |
c1b5c1eb | 5641 | completion_list_add_name (tracker, sym->language (), |
33d16dd9 | 5642 | t->field (j).name (), |
1b026119 | 5643 | lookup_name, text, word); |
edb3359d DJ |
5644 | } |
5645 | } | |
5646 | ||
f9d67a22 PA |
5647 | /* See symtab.h. */ |
5648 | ||
5649 | bool | |
5650 | symbol_is_function_or_method (symbol *sym) | |
5651 | { | |
78134374 | 5652 | switch (SYMBOL_TYPE (sym)->code ()) |
f9d67a22 PA |
5653 | { |
5654 | case TYPE_CODE_FUNC: | |
5655 | case TYPE_CODE_METHOD: | |
5656 | return true; | |
5657 | default: | |
5658 | return false; | |
5659 | } | |
5660 | } | |
5661 | ||
5662 | /* See symtab.h. */ | |
5663 | ||
5664 | bool | |
5665 | symbol_is_function_or_method (minimal_symbol *msymbol) | |
5666 | { | |
5667 | switch (MSYMBOL_TYPE (msymbol)) | |
5668 | { | |
5669 | case mst_text: | |
5670 | case mst_text_gnu_ifunc: | |
5671 | case mst_solib_trampoline: | |
5672 | case mst_file_text: | |
5673 | return true; | |
5674 | default: | |
5675 | return false; | |
5676 | } | |
5677 | } | |
5678 | ||
ca31ab1d PA |
5679 | /* See symtab.h. */ |
5680 | ||
5681 | bound_minimal_symbol | |
5682 | find_gnu_ifunc (const symbol *sym) | |
5683 | { | |
5684 | if (SYMBOL_CLASS (sym) != LOC_BLOCK) | |
5685 | return {}; | |
5686 | ||
987012b8 | 5687 | lookup_name_info lookup_name (sym->search_name (), |
ca31ab1d PA |
5688 | symbol_name_match_type::SEARCH_NAME); |
5689 | struct objfile *objfile = symbol_objfile (sym); | |
5690 | ||
2b1ffcfd | 5691 | CORE_ADDR address = BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (sym)); |
ca31ab1d PA |
5692 | minimal_symbol *ifunc = NULL; |
5693 | ||
5694 | iterate_over_minimal_symbols (objfile, lookup_name, | |
5695 | [&] (minimal_symbol *minsym) | |
5696 | { | |
5697 | if (MSYMBOL_TYPE (minsym) == mst_text_gnu_ifunc | |
f50776aa | 5698 | || MSYMBOL_TYPE (minsym) == mst_data_gnu_ifunc) |
ca31ab1d | 5699 | { |
f50776aa PA |
5700 | CORE_ADDR msym_addr = MSYMBOL_VALUE_ADDRESS (objfile, minsym); |
5701 | if (MSYMBOL_TYPE (minsym) == mst_data_gnu_ifunc) | |
5702 | { | |
08feed99 | 5703 | struct gdbarch *gdbarch = objfile->arch (); |
328d42d8 SM |
5704 | msym_addr = gdbarch_convert_from_func_ptr_addr |
5705 | (gdbarch, msym_addr, current_inferior ()->top_target ()); | |
f50776aa PA |
5706 | } |
5707 | if (msym_addr == address) | |
5708 | { | |
5709 | ifunc = minsym; | |
5710 | return true; | |
5711 | } | |
ca31ab1d PA |
5712 | } |
5713 | return false; | |
5714 | }); | |
5715 | ||
5716 | if (ifunc != NULL) | |
5717 | return {ifunc, objfile}; | |
5718 | return {}; | |
5719 | } | |
5720 | ||
e11c72c7 GB |
5721 | /* Add matching symbols from SYMTAB to the current completion list. */ |
5722 | ||
5723 | static void | |
5724 | add_symtab_completions (struct compunit_symtab *cust, | |
eb3ff9a5 | 5725 | completion_tracker &tracker, |
f9d67a22 | 5726 | complete_symbol_mode mode, |
b5ec771e | 5727 | const lookup_name_info &lookup_name, |
e11c72c7 GB |
5728 | const char *text, const char *word, |
5729 | enum type_code code) | |
5730 | { | |
5731 | struct symbol *sym; | |
5732 | const struct block *b; | |
5733 | struct block_iterator iter; | |
5734 | int i; | |
5735 | ||
ff6fa247 GB |
5736 | if (cust == NULL) |
5737 | return; | |
5738 | ||
e11c72c7 GB |
5739 | for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++) |
5740 | { | |
5741 | QUIT; | |
5742 | b = BLOCKVECTOR_BLOCK (COMPUNIT_BLOCKVECTOR (cust), i); | |
5743 | ALL_BLOCK_SYMBOLS (b, iter, sym) | |
5744 | { | |
f9d67a22 PA |
5745 | if (completion_skip_symbol (mode, sym)) |
5746 | continue; | |
5747 | ||
e11c72c7 GB |
5748 | if (code == TYPE_CODE_UNDEF |
5749 | || (SYMBOL_DOMAIN (sym) == STRUCT_DOMAIN | |
78134374 | 5750 | && SYMBOL_TYPE (sym)->code () == code)) |
eb3ff9a5 | 5751 | completion_list_add_symbol (tracker, sym, |
b5ec771e | 5752 | lookup_name, |
e11c72c7 GB |
5753 | text, word); |
5754 | } | |
5755 | } | |
5756 | } | |
5757 | ||
eb3ff9a5 PA |
5758 | void |
5759 | default_collect_symbol_completion_matches_break_on | |
b5ec771e PA |
5760 | (completion_tracker &tracker, complete_symbol_mode mode, |
5761 | symbol_name_match_type name_match_type, | |
eb3ff9a5 PA |
5762 | const char *text, const char *word, |
5763 | const char *break_on, enum type_code code) | |
c906108c | 5764 | { |
41d27058 JB |
5765 | /* Problem: All of the symbols have to be copied because readline |
5766 | frees them. I'm not going to worry about this; hopefully there | |
5767 | won't be that many. */ | |
5768 | ||
de4f826b | 5769 | struct symbol *sym; |
3977b71f | 5770 | const struct block *b; |
edb3359d | 5771 | const struct block *surrounding_static_block, *surrounding_global_block; |
8157b174 | 5772 | struct block_iterator iter; |
c906108c | 5773 | /* The symbol we are completing on. Points in same buffer as text. */ |
6f937416 | 5774 | const char *sym_text; |
c906108c | 5775 | |
41d27058 | 5776 | /* Now look for the symbol we are supposed to complete on. */ |
c6756f62 PA |
5777 | if (mode == complete_symbol_mode::LINESPEC) |
5778 | sym_text = text; | |
5779 | else | |
01add95b SM |
5780 | { |
5781 | const char *p; | |
5782 | char quote_found; | |
5783 | const char *quote_pos = NULL; | |
c906108c | 5784 | |
01add95b SM |
5785 | /* First see if this is a quoted string. */ |
5786 | quote_found = '\0'; | |
5787 | for (p = text; *p != '\0'; ++p) | |
5788 | { | |
5789 | if (quote_found != '\0') | |
5790 | { | |
5791 | if (*p == quote_found) | |
5792 | /* Found close quote. */ | |
5793 | quote_found = '\0'; | |
5794 | else if (*p == '\\' && p[1] == quote_found) | |
5795 | /* A backslash followed by the quote character | |
5796 | doesn't end the string. */ | |
5797 | ++p; | |
5798 | } | |
5799 | else if (*p == '\'' || *p == '"') | |
5800 | { | |
5801 | quote_found = *p; | |
5802 | quote_pos = p; | |
5803 | } | |
5804 | } | |
5805 | if (quote_found == '\'') | |
5806 | /* A string within single quotes can be a symbol, so complete on it. */ | |
5807 | sym_text = quote_pos + 1; | |
5808 | else if (quote_found == '"') | |
5809 | /* A double-quoted string is never a symbol, nor does it make sense | |
5810 | to complete it any other way. */ | |
5811 | { | |
5812 | return; | |
5813 | } | |
5814 | else | |
5815 | { | |
5816 | /* It is not a quoted string. Break it based on the characters | |
5817 | which are in symbols. */ | |
5818 | while (p > text) | |
5819 | { | |
5820 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0' | |
5821 | || p[-1] == ':' || strchr (break_on, p[-1]) != NULL) | |
5822 | --p; | |
5823 | else | |
5824 | break; | |
5825 | } | |
5826 | sym_text = p; | |
5827 | } | |
5828 | } | |
c906108c | 5829 | |
1b026119 | 5830 | lookup_name_info lookup_name (sym_text, name_match_type, true); |
b5ec771e | 5831 | |
c906108c SS |
5832 | /* At this point scan through the misc symbol vectors and add each |
5833 | symbol you find to the list. Eventually we want to ignore | |
5834 | anything that isn't a text symbol (everything else will be | |
e11c72c7 | 5835 | handled by the psymtab code below). */ |
c906108c | 5836 | |
2f68a895 TT |
5837 | if (code == TYPE_CODE_UNDEF) |
5838 | { | |
2030c079 | 5839 | for (objfile *objfile : current_program_space->objfiles ()) |
2f68a895 | 5840 | { |
7932255d | 5841 | for (minimal_symbol *msymbol : objfile->msymbols ()) |
5325b9bf TT |
5842 | { |
5843 | QUIT; | |
9af17804 | 5844 | |
5325b9bf TT |
5845 | if (completion_skip_symbol (mode, msymbol)) |
5846 | continue; | |
f9d67a22 | 5847 | |
5325b9bf TT |
5848 | completion_list_add_msymbol (tracker, msymbol, lookup_name, |
5849 | sym_text, word); | |
eb3ff9a5 | 5850 | |
5325b9bf TT |
5851 | completion_list_objc_symbol (tracker, msymbol, lookup_name, |
5852 | sym_text, word); | |
5853 | } | |
2f68a895 TT |
5854 | } |
5855 | } | |
c906108c | 5856 | |
e11c72c7 | 5857 | /* Add completions for all currently loaded symbol tables. */ |
2030c079 | 5858 | for (objfile *objfile : current_program_space->objfiles ()) |
d8aeb77f | 5859 | { |
b669c953 | 5860 | for (compunit_symtab *cust : objfile->compunits ()) |
d8aeb77f TT |
5861 | add_symtab_completions (cust, tracker, mode, lookup_name, |
5862 | sym_text, word, code); | |
5863 | } | |
e11c72c7 | 5864 | |
14bc53a8 PA |
5865 | /* Look through the partial symtabs for all symbols which begin by |
5866 | matching SYM_TEXT. Expand all CUs that you find to the list. */ | |
5867 | expand_symtabs_matching (NULL, | |
b5ec771e PA |
5868 | lookup_name, |
5869 | NULL, | |
14bc53a8 PA |
5870 | [&] (compunit_symtab *symtab) /* expansion notify */ |
5871 | { | |
5872 | add_symtab_completions (symtab, | |
f9d67a22 | 5873 | tracker, mode, lookup_name, |
1b026119 | 5874 | sym_text, word, code); |
df35e626 | 5875 | return true; |
14bc53a8 | 5876 | }, |
03a8ea51 | 5877 | SEARCH_GLOBAL_BLOCK | SEARCH_STATIC_BLOCK, |
14bc53a8 | 5878 | ALL_DOMAIN); |
e11c72c7 | 5879 | |
c906108c | 5880 | /* Search upwards from currently selected frame (so that we can |
edb3359d DJ |
5881 | complete on local vars). Also catch fields of types defined in |
5882 | this places which match our text string. Only complete on types | |
c378eb4e | 5883 | visible from current context. */ |
edb3359d DJ |
5884 | |
5885 | b = get_selected_block (0); | |
5886 | surrounding_static_block = block_static_block (b); | |
5887 | surrounding_global_block = block_global_block (b); | |
5888 | if (surrounding_static_block != NULL) | |
5889 | while (b != surrounding_static_block) | |
5890 | { | |
5891 | QUIT; | |
c906108c | 5892 | |
edb3359d DJ |
5893 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
5894 | { | |
2f68a895 TT |
5895 | if (code == TYPE_CODE_UNDEF) |
5896 | { | |
b5ec771e | 5897 | completion_list_add_symbol (tracker, sym, lookup_name, |
1b026119 | 5898 | sym_text, word); |
b5ec771e | 5899 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 5900 | sym_text, word); |
2f68a895 TT |
5901 | } |
5902 | else if (SYMBOL_DOMAIN (sym) == STRUCT_DOMAIN | |
78134374 | 5903 | && SYMBOL_TYPE (sym)->code () == code) |
b5ec771e | 5904 | completion_list_add_symbol (tracker, sym, lookup_name, |
1b026119 | 5905 | sym_text, word); |
edb3359d | 5906 | } |
c5aa993b | 5907 | |
edb3359d DJ |
5908 | /* Stop when we encounter an enclosing function. Do not stop for |
5909 | non-inlined functions - the locals of the enclosing function | |
5910 | are in scope for a nested function. */ | |
5911 | if (BLOCK_FUNCTION (b) != NULL && block_inlined_p (b)) | |
5912 | break; | |
5913 | b = BLOCK_SUPERBLOCK (b); | |
5914 | } | |
c906108c | 5915 | |
edb3359d | 5916 | /* Add fields from the file's types; symbols will be added below. */ |
c906108c | 5917 | |
2f68a895 TT |
5918 | if (code == TYPE_CODE_UNDEF) |
5919 | { | |
5920 | if (surrounding_static_block != NULL) | |
5921 | ALL_BLOCK_SYMBOLS (surrounding_static_block, iter, sym) | |
b5ec771e | 5922 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 5923 | sym_text, word); |
edb3359d | 5924 | |
2f68a895 TT |
5925 | if (surrounding_global_block != NULL) |
5926 | ALL_BLOCK_SYMBOLS (surrounding_global_block, iter, sym) | |
b5ec771e | 5927 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 5928 | sym_text, word); |
2f68a895 | 5929 | } |
c906108c | 5930 | |
2f68a895 TT |
5931 | /* Skip macros if we are completing a struct tag -- arguable but |
5932 | usually what is expected. */ | |
1ac14a04 | 5933 | if (current_language->macro_expansion () == macro_expansion_c |
2f68a895 | 5934 | && code == TYPE_CODE_UNDEF) |
9a044a89 | 5935 | { |
f6c2623e | 5936 | gdb::unique_xmalloc_ptr<struct macro_scope> scope; |
9a044a89 | 5937 | |
14bc53a8 PA |
5938 | /* This adds a macro's name to the current completion list. */ |
5939 | auto add_macro_name = [&] (const char *macro_name, | |
5940 | const macro_definition *, | |
5941 | macro_source_file *, | |
5942 | int) | |
5943 | { | |
1b026119 PA |
5944 | completion_list_add_name (tracker, language_c, macro_name, |
5945 | lookup_name, sym_text, word); | |
14bc53a8 PA |
5946 | }; |
5947 | ||
9a044a89 TT |
5948 | /* Add any macros visible in the default scope. Note that this |
5949 | may yield the occasional wrong result, because an expression | |
5950 | might be evaluated in a scope other than the default. For | |
5951 | example, if the user types "break file:line if <TAB>", the | |
5952 | resulting expression will be evaluated at "file:line" -- but | |
5953 | at there does not seem to be a way to detect this at | |
5954 | completion time. */ | |
5955 | scope = default_macro_scope (); | |
5956 | if (scope) | |
f6c2623e TT |
5957 | macro_for_each_in_scope (scope->file, scope->line, |
5958 | add_macro_name); | |
9a044a89 TT |
5959 | |
5960 | /* User-defined macros are always visible. */ | |
14bc53a8 | 5961 | macro_for_each (macro_user_macros, add_macro_name); |
9a044a89 | 5962 | } |
ef0b411a GB |
5963 | } |
5964 | ||
eb3ff9a5 PA |
5965 | /* Collect all symbols (regardless of class) which begin by matching |
5966 | TEXT. */ | |
41d27058 | 5967 | |
eb3ff9a5 PA |
5968 | void |
5969 | collect_symbol_completion_matches (completion_tracker &tracker, | |
c6756f62 | 5970 | complete_symbol_mode mode, |
b5ec771e | 5971 | symbol_name_match_type name_match_type, |
eb3ff9a5 | 5972 | const char *text, const char *word) |
41d27058 | 5973 | { |
7e56227d AB |
5974 | current_language->collect_symbol_completion_matches (tracker, mode, |
5975 | name_match_type, | |
5976 | text, word, | |
5977 | TYPE_CODE_UNDEF); | |
2f68a895 TT |
5978 | } |
5979 | ||
eb3ff9a5 PA |
5980 | /* Like collect_symbol_completion_matches, but only collect |
5981 | STRUCT_DOMAIN symbols whose type code is CODE. */ | |
2f68a895 | 5982 | |
eb3ff9a5 PA |
5983 | void |
5984 | collect_symbol_completion_matches_type (completion_tracker &tracker, | |
5985 | const char *text, const char *word, | |
5986 | enum type_code code) | |
2f68a895 | 5987 | { |
c6756f62 | 5988 | complete_symbol_mode mode = complete_symbol_mode::EXPRESSION; |
b5ec771e | 5989 | symbol_name_match_type name_match_type = symbol_name_match_type::EXPRESSION; |
c6756f62 | 5990 | |
2f68a895 TT |
5991 | gdb_assert (code == TYPE_CODE_UNION |
5992 | || code == TYPE_CODE_STRUCT | |
2f68a895 | 5993 | || code == TYPE_CODE_ENUM); |
7e56227d AB |
5994 | current_language->collect_symbol_completion_matches (tracker, mode, |
5995 | name_match_type, | |
5996 | text, word, code); | |
41d27058 JB |
5997 | } |
5998 | ||
eb3ff9a5 PA |
5999 | /* Like collect_symbol_completion_matches, but collects a list of |
6000 | symbols defined in all source files named SRCFILE. */ | |
c94fdfd0 | 6001 | |
eb3ff9a5 PA |
6002 | void |
6003 | collect_file_symbol_completion_matches (completion_tracker &tracker, | |
c6756f62 | 6004 | complete_symbol_mode mode, |
b5ec771e | 6005 | symbol_name_match_type name_match_type, |
eb3ff9a5 PA |
6006 | const char *text, const char *word, |
6007 | const char *srcfile) | |
c94fdfd0 | 6008 | { |
c94fdfd0 | 6009 | /* The symbol we are completing on. Points in same buffer as text. */ |
6f937416 | 6010 | const char *sym_text; |
c94fdfd0 EZ |
6011 | |
6012 | /* Now look for the symbol we are supposed to complete on. | |
6013 | FIXME: This should be language-specific. */ | |
c6756f62 PA |
6014 | if (mode == complete_symbol_mode::LINESPEC) |
6015 | sym_text = text; | |
6016 | else | |
01add95b SM |
6017 | { |
6018 | const char *p; | |
6019 | char quote_found; | |
6020 | const char *quote_pos = NULL; | |
c94fdfd0 | 6021 | |
01add95b SM |
6022 | /* First see if this is a quoted string. */ |
6023 | quote_found = '\0'; | |
6024 | for (p = text; *p != '\0'; ++p) | |
6025 | { | |
6026 | if (quote_found != '\0') | |
6027 | { | |
6028 | if (*p == quote_found) | |
6029 | /* Found close quote. */ | |
6030 | quote_found = '\0'; | |
6031 | else if (*p == '\\' && p[1] == quote_found) | |
6032 | /* A backslash followed by the quote character | |
6033 | doesn't end the string. */ | |
6034 | ++p; | |
6035 | } | |
6036 | else if (*p == '\'' || *p == '"') | |
6037 | { | |
6038 | quote_found = *p; | |
6039 | quote_pos = p; | |
6040 | } | |
6041 | } | |
6042 | if (quote_found == '\'') | |
6043 | /* A string within single quotes can be a symbol, so complete on it. */ | |
6044 | sym_text = quote_pos + 1; | |
6045 | else if (quote_found == '"') | |
6046 | /* A double-quoted string is never a symbol, nor does it make sense | |
6047 | to complete it any other way. */ | |
6048 | { | |
6049 | return; | |
6050 | } | |
6051 | else | |
6052 | { | |
6053 | /* Not a quoted string. */ | |
6054 | sym_text = language_search_unquoted_string (text, p); | |
6055 | } | |
6056 | } | |
c94fdfd0 | 6057 | |
1b026119 | 6058 | lookup_name_info lookup_name (sym_text, name_match_type, true); |
b5ec771e | 6059 | |
8f14146e PA |
6060 | /* Go through symtabs for SRCFILE and check the externs and statics |
6061 | for symbols which match. */ | |
6062 | iterate_over_symtabs (srcfile, [&] (symtab *s) | |
c94fdfd0 | 6063 | { |
8f14146e | 6064 | add_symtab_completions (SYMTAB_COMPUNIT (s), |
f9d67a22 | 6065 | tracker, mode, lookup_name, |
1b026119 | 6066 | sym_text, word, TYPE_CODE_UNDEF); |
8f14146e PA |
6067 | return false; |
6068 | }); | |
e27852be DE |
6069 | } |
6070 | ||
c94fdfd0 EZ |
6071 | /* A helper function for make_source_files_completion_list. It adds |
6072 | another file name to a list of possible completions, growing the | |
6073 | list as necessary. */ | |
6074 | ||
6075 | static void | |
6f937416 | 6076 | add_filename_to_list (const char *fname, const char *text, const char *word, |
eb3ff9a5 | 6077 | completion_list *list) |
c94fdfd0 | 6078 | { |
60a20c19 | 6079 | list->emplace_back (make_completion_match_str (fname, text, word)); |
c94fdfd0 EZ |
6080 | } |
6081 | ||
6082 | static int | |
6083 | not_interesting_fname (const char *fname) | |
6084 | { | |
6085 | static const char *illegal_aliens[] = { | |
6086 | "_globals_", /* inserted by coff_symtab_read */ | |
6087 | NULL | |
6088 | }; | |
6089 | int i; | |
6090 | ||
6091 | for (i = 0; illegal_aliens[i]; i++) | |
6092 | { | |
0ba1096a | 6093 | if (filename_cmp (fname, illegal_aliens[i]) == 0) |
c94fdfd0 EZ |
6094 | return 1; |
6095 | } | |
6096 | return 0; | |
6097 | } | |
6098 | ||
f4655dee | 6099 | /* An object of this type is passed as the callback argument to |
ccefe4c4 TT |
6100 | map_partial_symbol_filenames. */ |
6101 | struct add_partial_filename_data | |
6102 | { | |
9fdc877b | 6103 | struct filename_seen_cache *filename_seen_cache; |
6f937416 PA |
6104 | const char *text; |
6105 | const char *word; | |
ccefe4c4 | 6106 | int text_len; |
eb3ff9a5 | 6107 | completion_list *list; |
f4655dee TT |
6108 | |
6109 | void operator() (const char *filename, const char *fullname); | |
ccefe4c4 TT |
6110 | }; |
6111 | ||
6112 | /* A callback for map_partial_symbol_filenames. */ | |
eca864fe | 6113 | |
f4655dee TT |
6114 | void |
6115 | add_partial_filename_data::operator() (const char *filename, | |
6116 | const char *fullname) | |
ccefe4c4 | 6117 | { |
ccefe4c4 TT |
6118 | if (not_interesting_fname (filename)) |
6119 | return; | |
f4655dee TT |
6120 | if (!filename_seen_cache->seen (filename) |
6121 | && filename_ncmp (filename, text, text_len) == 0) | |
ccefe4c4 TT |
6122 | { |
6123 | /* This file matches for a completion; add it to the | |
6124 | current list of matches. */ | |
f4655dee | 6125 | add_filename_to_list (filename, text, word, list); |
ccefe4c4 TT |
6126 | } |
6127 | else | |
6128 | { | |
6129 | const char *base_name = lbasename (filename); | |
433759f7 | 6130 | |
ccefe4c4 | 6131 | if (base_name != filename |
f4655dee TT |
6132 | && !filename_seen_cache->seen (base_name) |
6133 | && filename_ncmp (base_name, text, text_len) == 0) | |
6134 | add_filename_to_list (base_name, text, word, list); | |
ccefe4c4 TT |
6135 | } |
6136 | } | |
6137 | ||
eb3ff9a5 | 6138 | /* Return a list of all source files whose names begin with matching |
49c4e619 | 6139 | TEXT. The file names are looked up in the symbol tables of this |
eb3ff9a5 | 6140 | program. */ |
c94fdfd0 | 6141 | |
eb3ff9a5 | 6142 | completion_list |
6f937416 | 6143 | make_source_files_completion_list (const char *text, const char *word) |
c94fdfd0 | 6144 | { |
c94fdfd0 | 6145 | size_t text_len = strlen (text); |
eb3ff9a5 | 6146 | completion_list list; |
31889e00 | 6147 | const char *base_name; |
ccefe4c4 | 6148 | struct add_partial_filename_data datum; |
c94fdfd0 | 6149 | |
c94fdfd0 EZ |
6150 | if (!have_full_symbols () && !have_partial_symbols ()) |
6151 | return list; | |
6152 | ||
bbf2f4df | 6153 | filename_seen_cache filenames_seen; |
9fdc877b | 6154 | |
2030c079 | 6155 | for (objfile *objfile : current_program_space->objfiles ()) |
c94fdfd0 | 6156 | { |
b669c953 | 6157 | for (compunit_symtab *cu : objfile->compunits ()) |
c94fdfd0 | 6158 | { |
8b31193a TT |
6159 | for (symtab *s : compunit_filetabs (cu)) |
6160 | { | |
6161 | if (not_interesting_fname (s->filename)) | |
6162 | continue; | |
6163 | if (!filenames_seen.seen (s->filename) | |
6164 | && filename_ncmp (s->filename, text, text_len) == 0) | |
6165 | { | |
6166 | /* This file matches for a completion; add it to the current | |
6167 | list of matches. */ | |
6168 | add_filename_to_list (s->filename, text, word, &list); | |
6169 | } | |
6170 | else | |
6171 | { | |
6172 | /* NOTE: We allow the user to type a base name when the | |
6173 | debug info records leading directories, but not the other | |
6174 | way around. This is what subroutines of breakpoint | |
6175 | command do when they parse file names. */ | |
6176 | base_name = lbasename (s->filename); | |
6177 | if (base_name != s->filename | |
6178 | && !filenames_seen.seen (base_name) | |
6179 | && filename_ncmp (base_name, text, text_len) == 0) | |
6180 | add_filename_to_list (base_name, text, word, &list); | |
6181 | } | |
6182 | } | |
c94fdfd0 EZ |
6183 | } |
6184 | } | |
6185 | ||
bbf2f4df | 6186 | datum.filename_seen_cache = &filenames_seen; |
ccefe4c4 TT |
6187 | datum.text = text; |
6188 | datum.word = word; | |
6189 | datum.text_len = text_len; | |
6190 | datum.list = &list; | |
f4655dee | 6191 | map_symbol_filenames (datum, false /*need_fullname*/); |
9fdc877b | 6192 | |
c94fdfd0 EZ |
6193 | return list; |
6194 | } | |
c906108c | 6195 | \f |
51cc5b07 | 6196 | /* Track MAIN */ |
32ac0d11 TT |
6197 | |
6198 | /* Return the "main_info" object for the current program space. If | |
6199 | the object has not yet been created, create it and fill in some | |
6200 | default values. */ | |
6201 | ||
6202 | static struct main_info * | |
6203 | get_main_info (void) | |
6204 | { | |
a32ad8c5 | 6205 | struct main_info *info = main_progspace_key.get (current_program_space); |
32ac0d11 TT |
6206 | |
6207 | if (info == NULL) | |
6208 | { | |
3d548a53 TT |
6209 | /* It may seem strange to store the main name in the progspace |
6210 | and also in whatever objfile happens to see a main name in | |
6211 | its debug info. The reason for this is mainly historical: | |
6212 | gdb returned "main" as the name even if no function named | |
6213 | "main" was defined the program; and this approach lets us | |
6214 | keep compatibility. */ | |
a32ad8c5 | 6215 | info = main_progspace_key.emplace (current_program_space); |
32ac0d11 TT |
6216 | } |
6217 | ||
6218 | return info; | |
6219 | } | |
6220 | ||
3d548a53 | 6221 | static void |
9e6c82ad | 6222 | set_main_name (const char *name, enum language lang) |
51cc5b07 | 6223 | { |
32ac0d11 TT |
6224 | struct main_info *info = get_main_info (); |
6225 | ||
6226 | if (info->name_of_main != NULL) | |
51cc5b07 | 6227 | { |
32ac0d11 TT |
6228 | xfree (info->name_of_main); |
6229 | info->name_of_main = NULL; | |
6230 | info->language_of_main = language_unknown; | |
51cc5b07 AC |
6231 | } |
6232 | if (name != NULL) | |
6233 | { | |
32ac0d11 TT |
6234 | info->name_of_main = xstrdup (name); |
6235 | info->language_of_main = lang; | |
51cc5b07 AC |
6236 | } |
6237 | } | |
6238 | ||
ea53e89f JB |
6239 | /* Deduce the name of the main procedure, and set NAME_OF_MAIN |
6240 | accordingly. */ | |
6241 | ||
6242 | static void | |
6243 | find_main_name (void) | |
6244 | { | |
cd6c7346 | 6245 | const char *new_main_name; |
3d548a53 TT |
6246 | |
6247 | /* First check the objfiles to see whether a debuginfo reader has | |
6248 | picked up the appropriate main name. Historically the main name | |
6249 | was found in a more or less random way; this approach instead | |
6250 | relies on the order of objfile creation -- which still isn't | |
6251 | guaranteed to get the correct answer, but is just probably more | |
6252 | accurate. */ | |
2030c079 | 6253 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
6254 | { |
6255 | if (objfile->per_bfd->name_of_main != NULL) | |
6256 | { | |
6257 | set_main_name (objfile->per_bfd->name_of_main, | |
6258 | objfile->per_bfd->language_of_main); | |
6259 | return; | |
6260 | } | |
6261 | } | |
ea53e89f JB |
6262 | |
6263 | /* Try to see if the main procedure is in Ada. */ | |
6264 | /* FIXME: brobecker/2005-03-07: Another way of doing this would | |
6265 | be to add a new method in the language vector, and call this | |
6266 | method for each language until one of them returns a non-empty | |
6267 | name. This would allow us to remove this hard-coded call to | |
6268 | an Ada function. It is not clear that this is a better approach | |
6269 | at this point, because all methods need to be written in a way | |
c378eb4e | 6270 | such that false positives never be returned. For instance, it is |
ea53e89f JB |
6271 | important that a method does not return a wrong name for the main |
6272 | procedure if the main procedure is actually written in a different | |
6273 | language. It is easy to guaranty this with Ada, since we use a | |
6274 | special symbol generated only when the main in Ada to find the name | |
c378eb4e | 6275 | of the main procedure. It is difficult however to see how this can |
ea53e89f JB |
6276 | be guarantied for languages such as C, for instance. This suggests |
6277 | that order of call for these methods becomes important, which means | |
6278 | a more complicated approach. */ | |
6279 | new_main_name = ada_main_name (); | |
6280 | if (new_main_name != NULL) | |
9af17804 | 6281 | { |
9e6c82ad | 6282 | set_main_name (new_main_name, language_ada); |
ea53e89f JB |
6283 | return; |
6284 | } | |
6285 | ||
63778547 IB |
6286 | new_main_name = d_main_name (); |
6287 | if (new_main_name != NULL) | |
6288 | { | |
6289 | set_main_name (new_main_name, language_d); | |
6290 | return; | |
6291 | } | |
6292 | ||
a766d390 DE |
6293 | new_main_name = go_main_name (); |
6294 | if (new_main_name != NULL) | |
6295 | { | |
9e6c82ad | 6296 | set_main_name (new_main_name, language_go); |
a766d390 DE |
6297 | return; |
6298 | } | |
6299 | ||
cd6c7346 PM |
6300 | new_main_name = pascal_main_name (); |
6301 | if (new_main_name != NULL) | |
9af17804 | 6302 | { |
9e6c82ad | 6303 | set_main_name (new_main_name, language_pascal); |
cd6c7346 PM |
6304 | return; |
6305 | } | |
6306 | ||
ea53e89f JB |
6307 | /* The languages above didn't identify the name of the main procedure. |
6308 | Fallback to "main". */ | |
d3214198 TV |
6309 | |
6310 | /* Try to find language for main in psymtabs. */ | |
6311 | enum language lang | |
6312 | = find_quick_global_symbol_language ("main", VAR_DOMAIN); | |
6313 | if (lang != language_unknown) | |
6314 | { | |
6315 | set_main_name ("main", lang); | |
6316 | return; | |
6317 | } | |
6318 | ||
9e6c82ad | 6319 | set_main_name ("main", language_unknown); |
ea53e89f JB |
6320 | } |
6321 | ||
cd215b2e TT |
6322 | /* See symtab.h. */ |
6323 | ||
6324 | const char * | |
6325 | main_name () | |
51cc5b07 | 6326 | { |
32ac0d11 TT |
6327 | struct main_info *info = get_main_info (); |
6328 | ||
6329 | if (info->name_of_main == NULL) | |
ea53e89f JB |
6330 | find_main_name (); |
6331 | ||
32ac0d11 | 6332 | return info->name_of_main; |
51cc5b07 AC |
6333 | } |
6334 | ||
9e6c82ad TT |
6335 | /* Return the language of the main function. If it is not known, |
6336 | return language_unknown. */ | |
6337 | ||
6338 | enum language | |
6339 | main_language (void) | |
6340 | { | |
32ac0d11 TT |
6341 | struct main_info *info = get_main_info (); |
6342 | ||
6343 | if (info->name_of_main == NULL) | |
6344 | find_main_name (); | |
6345 | ||
6346 | return info->language_of_main; | |
9e6c82ad TT |
6347 | } |
6348 | ||
ea53e89f JB |
6349 | /* Handle ``executable_changed'' events for the symtab module. */ |
6350 | ||
6351 | static void | |
781b42b0 | 6352 | symtab_observer_executable_changed (void) |
ea53e89f JB |
6353 | { |
6354 | /* NAME_OF_MAIN may no longer be the same, so reset it for now. */ | |
9e6c82ad | 6355 | set_main_name (NULL, language_unknown); |
ea53e89f | 6356 | } |
51cc5b07 | 6357 | |
a6c727b2 DJ |
6358 | /* Return 1 if the supplied producer string matches the ARM RealView |
6359 | compiler (armcc). */ | |
6360 | ||
ececd218 | 6361 | bool |
a6c727b2 DJ |
6362 | producer_is_realview (const char *producer) |
6363 | { | |
6364 | static const char *const arm_idents[] = { | |
6365 | "ARM C Compiler, ADS", | |
6366 | "Thumb C Compiler, ADS", | |
6367 | "ARM C++ Compiler, ADS", | |
6368 | "Thumb C++ Compiler, ADS", | |
6369 | "ARM/Thumb C/C++ Compiler, RVCT", | |
6370 | "ARM C/C++ Compiler, RVCT" | |
6371 | }; | |
6372 | int i; | |
6373 | ||
6374 | if (producer == NULL) | |
ececd218 | 6375 | return false; |
a6c727b2 DJ |
6376 | |
6377 | for (i = 0; i < ARRAY_SIZE (arm_idents); i++) | |
61012eef | 6378 | if (startswith (producer, arm_idents[i])) |
ececd218 | 6379 | return true; |
a6c727b2 | 6380 | |
ececd218 | 6381 | return false; |
a6c727b2 | 6382 | } |
ed0616c6 | 6383 | |
f1e6e072 TT |
6384 | \f |
6385 | ||
6386 | /* The next index to hand out in response to a registration request. */ | |
6387 | ||
6388 | static int next_aclass_value = LOC_FINAL_VALUE; | |
6389 | ||
6390 | /* The maximum number of "aclass" registrations we support. This is | |
6391 | constant for convenience. */ | |
6392 | #define MAX_SYMBOL_IMPLS (LOC_FINAL_VALUE + 10) | |
6393 | ||
6394 | /* The objects representing the various "aclass" values. The elements | |
6395 | from 0 up to LOC_FINAL_VALUE-1 represent themselves, and subsequent | |
6396 | elements are those registered at gdb initialization time. */ | |
6397 | ||
6398 | static struct symbol_impl symbol_impl[MAX_SYMBOL_IMPLS]; | |
6399 | ||
6400 | /* The globally visible pointer. This is separate from 'symbol_impl' | |
6401 | so that it can be const. */ | |
6402 | ||
6403 | const struct symbol_impl *symbol_impls = &symbol_impl[0]; | |
6404 | ||
6405 | /* Make sure we saved enough room in struct symbol. */ | |
6406 | ||
6407 | gdb_static_assert (MAX_SYMBOL_IMPLS <= (1 << SYMBOL_ACLASS_BITS)); | |
6408 | ||
6409 | /* Register a computed symbol type. ACLASS must be LOC_COMPUTED. OPS | |
6410 | is the ops vector associated with this index. This returns the new | |
6411 | index, which should be used as the aclass_index field for symbols | |
6412 | of this type. */ | |
6413 | ||
6414 | int | |
6415 | register_symbol_computed_impl (enum address_class aclass, | |
6416 | const struct symbol_computed_ops *ops) | |
6417 | { | |
6418 | int result = next_aclass_value++; | |
6419 | ||
6420 | gdb_assert (aclass == LOC_COMPUTED); | |
6421 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6422 | symbol_impl[result].aclass = aclass; | |
6423 | symbol_impl[result].ops_computed = ops; | |
6424 | ||
24d6c2a0 TT |
6425 | /* Sanity check OPS. */ |
6426 | gdb_assert (ops != NULL); | |
6427 | gdb_assert (ops->tracepoint_var_ref != NULL); | |
6428 | gdb_assert (ops->describe_location != NULL); | |
0b31a4bc | 6429 | gdb_assert (ops->get_symbol_read_needs != NULL); |
24d6c2a0 TT |
6430 | gdb_assert (ops->read_variable != NULL); |
6431 | ||
f1e6e072 TT |
6432 | return result; |
6433 | } | |
6434 | ||
6435 | /* Register a function with frame base type. ACLASS must be LOC_BLOCK. | |
6436 | OPS is the ops vector associated with this index. This returns the | |
6437 | new index, which should be used as the aclass_index field for symbols | |
6438 | of this type. */ | |
6439 | ||
6440 | int | |
6441 | register_symbol_block_impl (enum address_class aclass, | |
6442 | const struct symbol_block_ops *ops) | |
6443 | { | |
6444 | int result = next_aclass_value++; | |
6445 | ||
6446 | gdb_assert (aclass == LOC_BLOCK); | |
6447 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6448 | symbol_impl[result].aclass = aclass; | |
6449 | symbol_impl[result].ops_block = ops; | |
6450 | ||
6451 | /* Sanity check OPS. */ | |
6452 | gdb_assert (ops != NULL); | |
6453 | gdb_assert (ops->find_frame_base_location != NULL); | |
6454 | ||
6455 | return result; | |
6456 | } | |
6457 | ||
6458 | /* Register a register symbol type. ACLASS must be LOC_REGISTER or | |
6459 | LOC_REGPARM_ADDR. OPS is the register ops vector associated with | |
6460 | this index. This returns the new index, which should be used as | |
6461 | the aclass_index field for symbols of this type. */ | |
6462 | ||
6463 | int | |
6464 | register_symbol_register_impl (enum address_class aclass, | |
6465 | const struct symbol_register_ops *ops) | |
6466 | { | |
6467 | int result = next_aclass_value++; | |
6468 | ||
6469 | gdb_assert (aclass == LOC_REGISTER || aclass == LOC_REGPARM_ADDR); | |
6470 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6471 | symbol_impl[result].aclass = aclass; | |
6472 | symbol_impl[result].ops_register = ops; | |
6473 | ||
6474 | return result; | |
6475 | } | |
6476 | ||
6477 | /* Initialize elements of 'symbol_impl' for the constants in enum | |
6478 | address_class. */ | |
6479 | ||
6480 | static void | |
6481 | initialize_ordinary_address_classes (void) | |
6482 | { | |
6483 | int i; | |
6484 | ||
6485 | for (i = 0; i < LOC_FINAL_VALUE; ++i) | |
aead7601 | 6486 | symbol_impl[i].aclass = (enum address_class) i; |
f1e6e072 TT |
6487 | } |
6488 | ||
6489 | \f | |
6490 | ||
08be3fe3 DE |
6491 | /* See symtab.h. */ |
6492 | ||
6493 | struct objfile * | |
6494 | symbol_objfile (const struct symbol *symbol) | |
6495 | { | |
1994afbf DE |
6496 | gdb_assert (SYMBOL_OBJFILE_OWNED (symbol)); |
6497 | return SYMTAB_OBJFILE (symbol->owner.symtab); | |
08be3fe3 DE |
6498 | } |
6499 | ||
6500 | /* See symtab.h. */ | |
6501 | ||
6502 | struct gdbarch * | |
6503 | symbol_arch (const struct symbol *symbol) | |
6504 | { | |
1994afbf DE |
6505 | if (!SYMBOL_OBJFILE_OWNED (symbol)) |
6506 | return symbol->owner.arch; | |
08feed99 | 6507 | return SYMTAB_OBJFILE (symbol->owner.symtab)->arch (); |
08be3fe3 DE |
6508 | } |
6509 | ||
6510 | /* See symtab.h. */ | |
6511 | ||
6512 | struct symtab * | |
6513 | symbol_symtab (const struct symbol *symbol) | |
6514 | { | |
1994afbf DE |
6515 | gdb_assert (SYMBOL_OBJFILE_OWNED (symbol)); |
6516 | return symbol->owner.symtab; | |
08be3fe3 DE |
6517 | } |
6518 | ||
6519 | /* See symtab.h. */ | |
6520 | ||
6521 | void | |
6522 | symbol_set_symtab (struct symbol *symbol, struct symtab *symtab) | |
6523 | { | |
1994afbf DE |
6524 | gdb_assert (SYMBOL_OBJFILE_OWNED (symbol)); |
6525 | symbol->owner.symtab = symtab; | |
08be3fe3 DE |
6526 | } |
6527 | ||
4b610737 TT |
6528 | /* See symtab.h. */ |
6529 | ||
6530 | CORE_ADDR | |
6531 | get_symbol_address (const struct symbol *sym) | |
6532 | { | |
6533 | gdb_assert (sym->maybe_copied); | |
6534 | gdb_assert (SYMBOL_CLASS (sym) == LOC_STATIC); | |
6535 | ||
987012b8 | 6536 | const char *linkage_name = sym->linkage_name (); |
4b610737 TT |
6537 | |
6538 | for (objfile *objfile : current_program_space->objfiles ()) | |
6539 | { | |
3e65b3e9 TT |
6540 | if (objfile->separate_debug_objfile_backlink != nullptr) |
6541 | continue; | |
6542 | ||
4b610737 TT |
6543 | bound_minimal_symbol minsym |
6544 | = lookup_minimal_symbol_linkage (linkage_name, objfile); | |
6545 | if (minsym.minsym != nullptr) | |
6546 | return BMSYMBOL_VALUE_ADDRESS (minsym); | |
6547 | } | |
468c0cbb | 6548 | return sym->value.address; |
4b610737 TT |
6549 | } |
6550 | ||
6551 | /* See symtab.h. */ | |
6552 | ||
6553 | CORE_ADDR | |
6554 | get_msymbol_address (struct objfile *objf, const struct minimal_symbol *minsym) | |
6555 | { | |
6556 | gdb_assert (minsym->maybe_copied); | |
6557 | gdb_assert ((objf->flags & OBJF_MAINLINE) == 0); | |
6558 | ||
c9d95fa3 | 6559 | const char *linkage_name = minsym->linkage_name (); |
4b610737 TT |
6560 | |
6561 | for (objfile *objfile : current_program_space->objfiles ()) | |
6562 | { | |
3e65b3e9 TT |
6563 | if (objfile->separate_debug_objfile_backlink == nullptr |
6564 | && (objfile->flags & OBJF_MAINLINE) != 0) | |
4b610737 TT |
6565 | { |
6566 | bound_minimal_symbol found | |
6567 | = lookup_minimal_symbol_linkage (linkage_name, objfile); | |
6568 | if (found.minsym != nullptr) | |
6569 | return BMSYMBOL_VALUE_ADDRESS (found); | |
6570 | } | |
6571 | } | |
a52d653e AB |
6572 | return (minsym->value.address |
6573 | + objf->section_offsets[minsym->section_index ()]); | |
4b610737 TT |
6574 | } |
6575 | ||
e623cf5d TT |
6576 | \f |
6577 | ||
165f8965 AB |
6578 | /* Hold the sub-commands of 'info module'. */ |
6579 | ||
6580 | static struct cmd_list_element *info_module_cmdlist = NULL; | |
6581 | ||
165f8965 AB |
6582 | /* See symtab.h. */ |
6583 | ||
6584 | std::vector<module_symbol_search> | |
6585 | search_module_symbols (const char *module_regexp, const char *regexp, | |
6586 | const char *type_regexp, search_domain kind) | |
6587 | { | |
6588 | std::vector<module_symbol_search> results; | |
6589 | ||
6590 | /* Search for all modules matching MODULE_REGEXP. */ | |
470c0b1c AB |
6591 | global_symbol_searcher spec1 (MODULES_DOMAIN, module_regexp); |
6592 | spec1.set_exclude_minsyms (true); | |
6593 | std::vector<symbol_search> modules = spec1.search (); | |
165f8965 AB |
6594 | |
6595 | /* Now search for all symbols of the required KIND matching the required | |
6596 | regular expressions. We figure out which ones are in which modules | |
6597 | below. */ | |
470c0b1c AB |
6598 | global_symbol_searcher spec2 (kind, regexp); |
6599 | spec2.set_symbol_type_regexp (type_regexp); | |
6600 | spec2.set_exclude_minsyms (true); | |
6601 | std::vector<symbol_search> symbols = spec2.search (); | |
165f8965 AB |
6602 | |
6603 | /* Now iterate over all MODULES, checking to see which items from | |
6604 | SYMBOLS are in each module. */ | |
6605 | for (const symbol_search &p : modules) | |
6606 | { | |
6607 | QUIT; | |
6608 | ||
6609 | /* This is a module. */ | |
6610 | gdb_assert (p.symbol != nullptr); | |
6611 | ||
987012b8 | 6612 | std::string prefix = p.symbol->print_name (); |
165f8965 AB |
6613 | prefix += "::"; |
6614 | ||
6615 | for (const symbol_search &q : symbols) | |
6616 | { | |
6617 | if (q.symbol == nullptr) | |
6618 | continue; | |
6619 | ||
987012b8 | 6620 | if (strncmp (q.symbol->print_name (), prefix.c_str (), |
165f8965 AB |
6621 | prefix.size ()) != 0) |
6622 | continue; | |
6623 | ||
6624 | results.push_back ({p, q}); | |
6625 | } | |
6626 | } | |
6627 | ||
6628 | return results; | |
6629 | } | |
6630 | ||
6631 | /* Implement the core of both 'info module functions' and 'info module | |
6632 | variables'. */ | |
6633 | ||
6634 | static void | |
6635 | info_module_subcommand (bool quiet, const char *module_regexp, | |
6636 | const char *regexp, const char *type_regexp, | |
6637 | search_domain kind) | |
6638 | { | |
6639 | /* Print a header line. Don't build the header line bit by bit as this | |
6640 | prevents internationalisation. */ | |
6641 | if (!quiet) | |
6642 | { | |
6643 | if (module_regexp == nullptr) | |
6644 | { | |
6645 | if (type_regexp == nullptr) | |
6646 | { | |
6647 | if (regexp == nullptr) | |
6648 | printf_filtered ((kind == VARIABLES_DOMAIN | |
6649 | ? _("All variables in all modules:") | |
6650 | : _("All functions in all modules:"))); | |
6651 | else | |
6652 | printf_filtered | |
6653 | ((kind == VARIABLES_DOMAIN | |
6654 | ? _("All variables matching regular expression" | |
6655 | " \"%s\" in all modules:") | |
6656 | : _("All functions matching regular expression" | |
6657 | " \"%s\" in all modules:")), | |
6658 | regexp); | |
6659 | } | |
6660 | else | |
6661 | { | |
6662 | if (regexp == nullptr) | |
6663 | printf_filtered | |
6664 | ((kind == VARIABLES_DOMAIN | |
6665 | ? _("All variables with type matching regular " | |
6666 | "expression \"%s\" in all modules:") | |
6667 | : _("All functions with type matching regular " | |
6668 | "expression \"%s\" in all modules:")), | |
6669 | type_regexp); | |
6670 | else | |
6671 | printf_filtered | |
6672 | ((kind == VARIABLES_DOMAIN | |
6673 | ? _("All variables matching regular expression " | |
6674 | "\"%s\",\n\twith type matching regular " | |
6675 | "expression \"%s\" in all modules:") | |
6676 | : _("All functions matching regular expression " | |
6677 | "\"%s\",\n\twith type matching regular " | |
6678 | "expression \"%s\" in all modules:")), | |
6679 | regexp, type_regexp); | |
6680 | } | |
6681 | } | |
6682 | else | |
6683 | { | |
6684 | if (type_regexp == nullptr) | |
6685 | { | |
6686 | if (regexp == nullptr) | |
6687 | printf_filtered | |
6688 | ((kind == VARIABLES_DOMAIN | |
6689 | ? _("All variables in all modules matching regular " | |
6690 | "expression \"%s\":") | |
6691 | : _("All functions in all modules matching regular " | |
6692 | "expression \"%s\":")), | |
6693 | module_regexp); | |
6694 | else | |
6695 | printf_filtered | |
6696 | ((kind == VARIABLES_DOMAIN | |
6697 | ? _("All variables matching regular expression " | |
6698 | "\"%s\",\n\tin all modules matching regular " | |
6699 | "expression \"%s\":") | |
6700 | : _("All functions matching regular expression " | |
6701 | "\"%s\",\n\tin all modules matching regular " | |
6702 | "expression \"%s\":")), | |
6703 | regexp, module_regexp); | |
6704 | } | |
6705 | else | |
6706 | { | |
6707 | if (regexp == nullptr) | |
6708 | printf_filtered | |
6709 | ((kind == VARIABLES_DOMAIN | |
6710 | ? _("All variables with type matching regular " | |
6711 | "expression \"%s\"\n\tin all modules matching " | |
6712 | "regular expression \"%s\":") | |
6713 | : _("All functions with type matching regular " | |
6714 | "expression \"%s\"\n\tin all modules matching " | |
6715 | "regular expression \"%s\":")), | |
6716 | type_regexp, module_regexp); | |
6717 | else | |
6718 | printf_filtered | |
6719 | ((kind == VARIABLES_DOMAIN | |
6720 | ? _("All variables matching regular expression " | |
6721 | "\"%s\",\n\twith type matching regular expression " | |
6722 | "\"%s\",\n\tin all modules matching regular " | |
6723 | "expression \"%s\":") | |
6724 | : _("All functions matching regular expression " | |
6725 | "\"%s\",\n\twith type matching regular expression " | |
6726 | "\"%s\",\n\tin all modules matching regular " | |
6727 | "expression \"%s\":")), | |
6728 | regexp, type_regexp, module_regexp); | |
6729 | } | |
6730 | } | |
6731 | printf_filtered ("\n"); | |
6732 | } | |
6733 | ||
6734 | /* Find all symbols of type KIND matching the given regular expressions | |
6735 | along with the symbols for the modules in which those symbols | |
6736 | reside. */ | |
6737 | std::vector<module_symbol_search> module_symbols | |
6738 | = search_module_symbols (module_regexp, regexp, type_regexp, kind); | |
6739 | ||
6740 | std::sort (module_symbols.begin (), module_symbols.end (), | |
6741 | [] (const module_symbol_search &a, const module_symbol_search &b) | |
6742 | { | |
6743 | if (a.first < b.first) | |
6744 | return true; | |
6745 | else if (a.first == b.first) | |
6746 | return a.second < b.second; | |
6747 | else | |
6748 | return false; | |
6749 | }); | |
6750 | ||
6751 | const char *last_filename = ""; | |
6752 | const symbol *last_module_symbol = nullptr; | |
6753 | for (const module_symbol_search &ms : module_symbols) | |
6754 | { | |
6755 | const symbol_search &p = ms.first; | |
6756 | const symbol_search &q = ms.second; | |
6757 | ||
6758 | gdb_assert (q.symbol != nullptr); | |
6759 | ||
6760 | if (last_module_symbol != p.symbol) | |
6761 | { | |
6762 | printf_filtered ("\n"); | |
987012b8 | 6763 | printf_filtered (_("Module \"%s\":\n"), p.symbol->print_name ()); |
165f8965 AB |
6764 | last_module_symbol = p.symbol; |
6765 | last_filename = ""; | |
6766 | } | |
6767 | ||
6768 | print_symbol_info (FUNCTIONS_DOMAIN, q.symbol, q.block, | |
6769 | last_filename); | |
6770 | last_filename | |
6771 | = symtab_to_filename_for_display (symbol_symtab (q.symbol)); | |
6772 | } | |
6773 | } | |
6774 | ||
6775 | /* Hold the option values for the 'info module .....' sub-commands. */ | |
6776 | ||
6777 | struct info_modules_var_func_options | |
6778 | { | |
6779 | bool quiet = false; | |
e0700ba4 SM |
6780 | std::string type_regexp; |
6781 | std::string module_regexp; | |
165f8965 AB |
6782 | }; |
6783 | ||
6784 | /* The options used by 'info module variables' and 'info module functions' | |
6785 | commands. */ | |
6786 | ||
6787 | static const gdb::option::option_def info_modules_var_func_options_defs [] = { | |
6788 | gdb::option::boolean_option_def<info_modules_var_func_options> { | |
6789 | "q", | |
6790 | [] (info_modules_var_func_options *opt) { return &opt->quiet; }, | |
6791 | nullptr, /* show_cmd_cb */ | |
6792 | nullptr /* set_doc */ | |
6793 | }, | |
6794 | ||
6795 | gdb::option::string_option_def<info_modules_var_func_options> { | |
6796 | "t", | |
6797 | [] (info_modules_var_func_options *opt) { return &opt->type_regexp; }, | |
6798 | nullptr, /* show_cmd_cb */ | |
6799 | nullptr /* set_doc */ | |
6800 | }, | |
6801 | ||
6802 | gdb::option::string_option_def<info_modules_var_func_options> { | |
6803 | "m", | |
6804 | [] (info_modules_var_func_options *opt) { return &opt->module_regexp; }, | |
6805 | nullptr, /* show_cmd_cb */ | |
6806 | nullptr /* set_doc */ | |
6807 | } | |
6808 | }; | |
6809 | ||
6810 | /* Return the option group used by the 'info module ...' sub-commands. */ | |
6811 | ||
6812 | static inline gdb::option::option_def_group | |
6813 | make_info_modules_var_func_options_def_group | |
6814 | (info_modules_var_func_options *opts) | |
6815 | { | |
6816 | return {{info_modules_var_func_options_defs}, opts}; | |
6817 | } | |
6818 | ||
6819 | /* Implements the 'info module functions' command. */ | |
6820 | ||
6821 | static void | |
6822 | info_module_functions_command (const char *args, int from_tty) | |
6823 | { | |
6824 | info_modules_var_func_options opts; | |
6825 | auto grp = make_info_modules_var_func_options_def_group (&opts); | |
6826 | gdb::option::process_options | |
6827 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
6828 | if (args != nullptr && *args == '\0') | |
6829 | args = nullptr; | |
6830 | ||
e0700ba4 SM |
6831 | info_module_subcommand |
6832 | (opts.quiet, | |
6833 | opts.module_regexp.empty () ? nullptr : opts.module_regexp.c_str (), args, | |
6834 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
6835 | FUNCTIONS_DOMAIN); | |
165f8965 AB |
6836 | } |
6837 | ||
6838 | /* Implements the 'info module variables' command. */ | |
6839 | ||
6840 | static void | |
6841 | info_module_variables_command (const char *args, int from_tty) | |
6842 | { | |
6843 | info_modules_var_func_options opts; | |
6844 | auto grp = make_info_modules_var_func_options_def_group (&opts); | |
6845 | gdb::option::process_options | |
6846 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
6847 | if (args != nullptr && *args == '\0') | |
6848 | args = nullptr; | |
6849 | ||
e0700ba4 SM |
6850 | info_module_subcommand |
6851 | (opts.quiet, | |
6852 | opts.module_regexp.empty () ? nullptr : opts.module_regexp.c_str (), args, | |
6853 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
6854 | VARIABLES_DOMAIN); | |
165f8965 AB |
6855 | } |
6856 | ||
6857 | /* Command completer for 'info module ...' sub-commands. */ | |
6858 | ||
6859 | static void | |
6860 | info_module_var_func_command_completer (struct cmd_list_element *ignore, | |
6861 | completion_tracker &tracker, | |
6862 | const char *text, | |
6863 | const char * /* word */) | |
6864 | { | |
6865 | ||
6866 | const auto group = make_info_modules_var_func_options_def_group (nullptr); | |
6867 | if (gdb::option::complete_options | |
6868 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
6869 | return; | |
6870 | ||
6871 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
6872 | symbol_completer (ignore, tracker, text, word); | |
6873 | } | |
6874 | ||
6875 | \f | |
6876 | ||
6c265988 | 6877 | void _initialize_symtab (); |
c906108c | 6878 | void |
6c265988 | 6879 | _initialize_symtab () |
c906108c | 6880 | { |
60cfcb20 AB |
6881 | cmd_list_element *c; |
6882 | ||
f1e6e072 TT |
6883 | initialize_ordinary_address_classes (); |
6884 | ||
60cfcb20 AB |
6885 | c = add_info ("variables", info_variables_command, |
6886 | info_print_args_help (_("\ | |
12615cba | 6887 | All global and static variable names or those matching REGEXPs.\n\ |
4acfdd20 | 6888 | Usage: info variables [-q] [-n] [-t TYPEREGEXP] [NAMEREGEXP]\n\ |
12615cba | 6889 | Prints the global and static variables.\n"), |
4acfdd20 AB |
6890 | _("global and static variables"), |
6891 | true)); | |
095252be | 6892 | set_cmd_completer_handle_brkchars (c, info_vars_funcs_command_completer); |
c906108c | 6893 | if (dbx_commands) |
60cfcb20 AB |
6894 | { |
6895 | c = add_com ("whereis", class_info, info_variables_command, | |
6896 | info_print_args_help (_("\ | |
12615cba | 6897 | All global and static variable names, or those matching REGEXPs.\n\ |
4acfdd20 | 6898 | Usage: whereis [-q] [-n] [-t TYPEREGEXP] [NAMEREGEXP]\n\ |
12615cba | 6899 | Prints the global and static variables.\n"), |
4acfdd20 AB |
6900 | _("global and static variables"), |
6901 | true)); | |
095252be | 6902 | set_cmd_completer_handle_brkchars (c, info_vars_funcs_command_completer); |
60cfcb20 | 6903 | } |
c906108c | 6904 | |
60cfcb20 AB |
6905 | c = add_info ("functions", info_functions_command, |
6906 | info_print_args_help (_("\ | |
12615cba | 6907 | All function names or those matching REGEXPs.\n\ |
4acfdd20 | 6908 | Usage: info functions [-q] [-n] [-t TYPEREGEXP] [NAMEREGEXP]\n\ |
12615cba | 6909 | Prints the functions.\n"), |
4acfdd20 AB |
6910 | _("functions"), |
6911 | true)); | |
095252be | 6912 | set_cmd_completer_handle_brkchars (c, info_vars_funcs_command_completer); |
c906108c | 6913 | |
a8eab7c6 AB |
6914 | c = add_info ("types", info_types_command, _("\ |
6915 | All type names, or those matching REGEXP.\n\ | |
6916 | Usage: info types [-q] [REGEXP]\n\ | |
6917 | Print information about all types matching REGEXP, or all types if no\n\ | |
6918 | REGEXP is given. The optional flag -q disables printing of headers.")); | |
6919 | set_cmd_completer_handle_brkchars (c, info_types_command_completer); | |
c906108c | 6920 | |
0e350a05 AB |
6921 | const auto info_sources_opts |
6922 | = make_info_sources_options_def_group (nullptr); | |
28cd9371 PW |
6923 | |
6924 | static std::string info_sources_help | |
6925 | = gdb::option::build_help (_("\ | |
6926 | All source files in the program or those matching REGEXP.\n\ | |
6927 | Usage: info sources [OPTION]... [REGEXP]\n\ | |
6928 | By default, REGEXP is used to match anywhere in the filename.\n\ | |
6929 | \n\ | |
6930 | Options:\n\ | |
6931 | %OPTIONS%"), | |
6932 | info_sources_opts); | |
6933 | ||
6934 | c = add_info ("sources", info_sources_command, info_sources_help.c_str ()); | |
6935 | set_cmd_completer_handle_brkchars (c, info_sources_command_completer); | |
c906108c | 6936 | |
59c35742 AB |
6937 | c = add_info ("modules", info_modules_command, |
6938 | _("All module names, or those matching REGEXP.")); | |
6939 | set_cmd_completer_handle_brkchars (c, info_types_command_completer); | |
6940 | ||
0743fc83 | 6941 | add_basic_prefix_cmd ("module", class_info, _("\ |
165f8965 | 6942 | Print information about modules."), |
2f822da5 | 6943 | &info_module_cmdlist, 0, &infolist); |
165f8965 AB |
6944 | |
6945 | c = add_cmd ("functions", class_info, info_module_functions_command, _("\ | |
6946 | Display functions arranged by modules.\n\ | |
6947 | Usage: info module functions [-q] [-m MODREGEXP] [-t TYPEREGEXP] [REGEXP]\n\ | |
6948 | Print a summary of all functions within each Fortran module, grouped by\n\ | |
6949 | module and file. For each function the line on which the function is\n\ | |
6950 | defined is given along with the type signature and name of the function.\n\ | |
6951 | \n\ | |
6952 | If REGEXP is provided then only functions whose name matches REGEXP are\n\ | |
6953 | listed. If MODREGEXP is provided then only functions in modules matching\n\ | |
6954 | MODREGEXP are listed. If TYPEREGEXP is given then only functions whose\n\ | |
6955 | type signature matches TYPEREGEXP are listed.\n\ | |
6956 | \n\ | |
6957 | The -q flag suppresses printing some header information."), | |
6958 | &info_module_cmdlist); | |
6959 | set_cmd_completer_handle_brkchars | |
6960 | (c, info_module_var_func_command_completer); | |
6961 | ||
6962 | c = add_cmd ("variables", class_info, info_module_variables_command, _("\ | |
6963 | Display variables arranged by modules.\n\ | |
6964 | Usage: info module variables [-q] [-m MODREGEXP] [-t TYPEREGEXP] [REGEXP]\n\ | |
6965 | Print a summary of all variables within each Fortran module, grouped by\n\ | |
6966 | module and file. For each variable the line on which the variable is\n\ | |
6967 | defined is given along with the type and name of the variable.\n\ | |
6968 | \n\ | |
6969 | If REGEXP is provided then only variables whose name matches REGEXP are\n\ | |
6970 | listed. If MODREGEXP is provided then only variables in modules matching\n\ | |
6971 | MODREGEXP are listed. If TYPEREGEXP is given then only variables whose\n\ | |
6972 | type matches TYPEREGEXP are listed.\n\ | |
6973 | \n\ | |
6974 | The -q flag suppresses printing some header information."), | |
6975 | &info_module_cmdlist); | |
6976 | set_cmd_completer_handle_brkchars | |
6977 | (c, info_module_var_func_command_completer); | |
6978 | ||
c906108c | 6979 | add_com ("rbreak", class_breakpoint, rbreak_command, |
1bedd215 | 6980 | _("Set a breakpoint for all functions matching REGEXP.")); |
c906108c | 6981 | |
717d2f5a | 6982 | add_setshow_enum_cmd ("multiple-symbols", no_class, |
dda83cd7 SM |
6983 | multiple_symbols_modes, &multiple_symbols_mode, |
6984 | _("\ | |
590042fc | 6985 | Set how the debugger handles ambiguities in expressions."), _("\ |
717d2f5a JB |
6986 | Show how the debugger handles ambiguities in expressions."), _("\ |
6987 | Valid values are \"ask\", \"all\", \"cancel\", and the default is \"all\"."), | |
dda83cd7 | 6988 | NULL, NULL, &setlist, &showlist); |
717d2f5a | 6989 | |
c011a4f4 DE |
6990 | add_setshow_boolean_cmd ("basenames-may-differ", class_obscure, |
6991 | &basenames_may_differ, _("\ | |
6992 | Set whether a source file may have multiple base names."), _("\ | |
6993 | Show whether a source file may have multiple base names."), _("\ | |
6994 | (A \"base name\" is the name of a file with the directory part removed.\n\ | |
6995 | Example: The base name of \"/home/user/hello.c\" is \"hello.c\".)\n\ | |
6996 | If set, GDB will canonicalize file names (e.g., expand symlinks)\n\ | |
6997 | before comparing them. Canonicalization is an expensive operation,\n\ | |
6998 | but it allows the same file be known by more than one base name.\n\ | |
6999 | If not set (the default), all source files are assumed to have just\n\ | |
7000 | one base name, and gdb will do file name comparisons more efficiently."), | |
7001 | NULL, NULL, | |
7002 | &setlist, &showlist); | |
7003 | ||
db0fec5c DE |
7004 | add_setshow_zuinteger_cmd ("symtab-create", no_class, &symtab_create_debug, |
7005 | _("Set debugging of symbol table creation."), | |
7006 | _("Show debugging of symbol table creation."), _("\ | |
7007 | When enabled (non-zero), debugging messages are printed when building\n\ | |
7008 | symbol tables. A value of 1 (one) normally provides enough information.\n\ | |
7009 | A value greater than 1 provides more verbose information."), | |
7010 | NULL, | |
7011 | NULL, | |
7012 | &setdebuglist, &showdebuglist); | |
45cfd468 | 7013 | |
cc485e62 DE |
7014 | add_setshow_zuinteger_cmd ("symbol-lookup", no_class, &symbol_lookup_debug, |
7015 | _("\ | |
7016 | Set debugging of symbol lookup."), _("\ | |
7017 | Show debugging of symbol lookup."), _("\ | |
7018 | When enabled (non-zero), symbol lookups are logged."), | |
7019 | NULL, NULL, | |
7020 | &setdebuglist, &showdebuglist); | |
7021 | ||
f57d2163 DE |
7022 | add_setshow_zuinteger_cmd ("symbol-cache-size", no_class, |
7023 | &new_symbol_cache_size, | |
7024 | _("Set the size of the symbol cache."), | |
7025 | _("Show the size of the symbol cache."), _("\ | |
7026 | The size of the symbol cache.\n\ | |
7027 | If zero then the symbol cache is disabled."), | |
7028 | set_symbol_cache_size_handler, NULL, | |
7029 | &maintenance_set_cmdlist, | |
7030 | &maintenance_show_cmdlist); | |
7031 | ||
7032 | add_cmd ("symbol-cache", class_maintenance, maintenance_print_symbol_cache, | |
7033 | _("Dump the symbol cache for each program space."), | |
7034 | &maintenanceprintlist); | |
7035 | ||
7036 | add_cmd ("symbol-cache-statistics", class_maintenance, | |
7037 | maintenance_print_symbol_cache_statistics, | |
7038 | _("Print symbol cache statistics for each program space."), | |
7039 | &maintenanceprintlist); | |
7040 | ||
5e84b7ee SM |
7041 | cmd_list_element *maintenance_flush_symbol_cache_cmd |
7042 | = add_cmd ("symbol-cache", class_maintenance, | |
7043 | maintenance_flush_symbol_cache, | |
7044 | _("Flush the symbol cache for each program space."), | |
7045 | &maintenanceflushlist); | |
7046 | c = add_alias_cmd ("flush-symbol-cache", maintenance_flush_symbol_cache_cmd, | |
50a5f187 AB |
7047 | class_maintenance, 0, &maintenancelist); |
7048 | deprecate_cmd (c, "maintenancelist flush symbol-cache"); | |
f57d2163 | 7049 | |
c90e7d63 SM |
7050 | gdb::observers::executable_changed.attach (symtab_observer_executable_changed, |
7051 | "symtab"); | |
7052 | gdb::observers::new_objfile.attach (symtab_new_objfile_observer, "symtab"); | |
7053 | gdb::observers::free_objfile.attach (symtab_free_objfile_observer, "symtab"); | |
c906108c | 7054 | } |