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c906108c | 1 | /* Symbol table lookup for the GNU debugger, GDB. |
8926118c | 2 | |
b811d2c2 | 3 | Copyright (C) 1986-2020 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" |
cce0e923 | 45 | #include "fnmatch.h" |
2de7ced7 | 46 | #include "hashtab.h" |
12615cba | 47 | #include "typeprint.h" |
2de7ced7 | 48 | |
04ea0df1 | 49 | #include "gdb_obstack.h" |
fe898f56 | 50 | #include "block.h" |
de4f826b | 51 | #include "dictionary.h" |
c906108c SS |
52 | |
53 | #include <sys/types.h> | |
54 | #include <fcntl.h> | |
53ce3c39 | 55 | #include <sys/stat.h> |
c906108c | 56 | #include <ctype.h> |
015a42b4 | 57 | #include "cp-abi.h" |
71c25dea | 58 | #include "cp-support.h" |
76727919 | 59 | #include "observable.h" |
3a40aaa0 | 60 | #include "solist.h" |
9a044a89 TT |
61 | #include "macrotab.h" |
62 | #include "macroscope.h" | |
c906108c | 63 | |
270140bd | 64 | #include "parser-defs.h" |
ef0b411a | 65 | #include "completer.h" |
5ed8105e | 66 | #include "progspace-and-thread.h" |
268a13a5 | 67 | #include "gdbsupport/gdb_optional.h" |
bbf2f4df | 68 | #include "filename-seen-cache.h" |
46a62268 | 69 | #include "arch-utils.h" |
b9c04fb2 | 70 | #include <algorithm> |
7bb43059 | 71 | #include "gdbsupport/gdb_string_view.h" |
268a13a5 | 72 | #include "gdbsupport/pathstuff.h" |
1a6ff1a9 | 73 | #include "gdbsupport/common-utils.h" |
ccefe4c4 | 74 | |
ff6c39cf | 75 | /* Forward declarations for local functions. */ |
c906108c | 76 | |
0b39b52e | 77 | static void rbreak_command (const char *, int); |
c906108c | 78 | |
f8eba3c6 | 79 | static int find_line_common (struct linetable *, int, int *, int); |
c906108c | 80 | |
d12307c1 PMR |
81 | static struct block_symbol |
82 | lookup_symbol_aux (const char *name, | |
de63c46b | 83 | symbol_name_match_type match_type, |
d12307c1 PMR |
84 | const struct block *block, |
85 | const domain_enum domain, | |
86 | enum language language, | |
87 | struct field_of_this_result *); | |
fba7f19c | 88 | |
e4051eeb | 89 | static |
d12307c1 | 90 | struct block_symbol lookup_local_symbol (const char *name, |
de63c46b | 91 | symbol_name_match_type match_type, |
d12307c1 PMR |
92 | const struct block *block, |
93 | const domain_enum domain, | |
94 | enum language language); | |
8155455b | 95 | |
d12307c1 | 96 | static struct block_symbol |
c32e6a04 CB |
97 | lookup_symbol_in_objfile (struct objfile *objfile, |
98 | enum block_enum block_index, | |
fe2a438d | 99 | const char *name, const domain_enum domain); |
c906108c | 100 | |
32ac0d11 TT |
101 | /* Type of the data stored on the program space. */ |
102 | ||
103 | struct main_info | |
104 | { | |
a32ad8c5 TT |
105 | main_info () = default; |
106 | ||
107 | ~main_info () | |
108 | { | |
109 | xfree (name_of_main); | |
110 | } | |
111 | ||
32ac0d11 TT |
112 | /* Name of "main". */ |
113 | ||
a32ad8c5 | 114 | char *name_of_main = nullptr; |
32ac0d11 TT |
115 | |
116 | /* Language of "main". */ | |
117 | ||
a32ad8c5 | 118 | enum language language_of_main = language_unknown; |
32ac0d11 TT |
119 | }; |
120 | ||
a32ad8c5 TT |
121 | /* Program space key for finding name and language of "main". */ |
122 | ||
123 | static const program_space_key<main_info> main_progspace_key; | |
124 | ||
f57d2163 DE |
125 | /* The default symbol cache size. |
126 | There is no extra cpu cost for large N (except when flushing the cache, | |
127 | which is rare). The value here is just a first attempt. A better default | |
128 | value may be higher or lower. A prime number can make up for a bad hash | |
129 | computation, so that's why the number is what it is. */ | |
130 | #define DEFAULT_SYMBOL_CACHE_SIZE 1021 | |
131 | ||
132 | /* The maximum symbol cache size. | |
133 | There's no method to the decision of what value to use here, other than | |
134 | there's no point in allowing a user typo to make gdb consume all memory. */ | |
135 | #define MAX_SYMBOL_CACHE_SIZE (1024*1024) | |
136 | ||
137 | /* symbol_cache_lookup returns this if a previous lookup failed to find the | |
138 | symbol in any objfile. */ | |
d12307c1 PMR |
139 | #define SYMBOL_LOOKUP_FAILED \ |
140 | ((struct block_symbol) {(struct symbol *) 1, NULL}) | |
141 | #define SYMBOL_LOOKUP_FAILED_P(SIB) (SIB.symbol == (struct symbol *) 1) | |
f57d2163 DE |
142 | |
143 | /* Recording lookups that don't find the symbol is just as important, if not | |
144 | more so, than recording found symbols. */ | |
145 | ||
146 | enum symbol_cache_slot_state | |
147 | { | |
148 | SYMBOL_SLOT_UNUSED, | |
149 | SYMBOL_SLOT_NOT_FOUND, | |
150 | SYMBOL_SLOT_FOUND | |
151 | }; | |
152 | ||
52059ffd TT |
153 | struct symbol_cache_slot |
154 | { | |
155 | enum symbol_cache_slot_state state; | |
156 | ||
157 | /* The objfile that was current when the symbol was looked up. | |
158 | This is only needed for global blocks, but for simplicity's sake | |
159 | we allocate the space for both. If data shows the extra space used | |
160 | for static blocks is a problem, we can split things up then. | |
161 | ||
162 | Global blocks need cache lookup to include the objfile context because | |
163 | we need to account for gdbarch_iterate_over_objfiles_in_search_order | |
164 | which can traverse objfiles in, effectively, any order, depending on | |
165 | the current objfile, thus affecting which symbol is found. Normally, | |
166 | only the current objfile is searched first, and then the rest are | |
167 | searched in recorded order; but putting cache lookup inside | |
168 | gdbarch_iterate_over_objfiles_in_search_order would be awkward. | |
169 | Instead we just make the current objfile part of the context of | |
170 | cache lookup. This means we can record the same symbol multiple times, | |
171 | each with a different "current objfile" that was in effect when the | |
172 | lookup was saved in the cache, but cache space is pretty cheap. */ | |
173 | const struct objfile *objfile_context; | |
174 | ||
175 | union | |
176 | { | |
d12307c1 | 177 | struct block_symbol found; |
52059ffd TT |
178 | struct |
179 | { | |
180 | char *name; | |
181 | domain_enum domain; | |
182 | } not_found; | |
183 | } value; | |
184 | }; | |
185 | ||
82f910ea PW |
186 | /* Clear out SLOT. */ |
187 | ||
188 | static void | |
189 | symbol_cache_clear_slot (struct symbol_cache_slot *slot) | |
190 | { | |
191 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
192 | xfree (slot->value.not_found.name); | |
193 | slot->state = SYMBOL_SLOT_UNUSED; | |
194 | } | |
195 | ||
f57d2163 DE |
196 | /* Symbols don't specify global vs static block. |
197 | So keep them in separate caches. */ | |
198 | ||
199 | struct block_symbol_cache | |
200 | { | |
201 | unsigned int hits; | |
202 | unsigned int misses; | |
203 | unsigned int collisions; | |
204 | ||
205 | /* SYMBOLS is a variable length array of this size. | |
206 | One can imagine that in general one cache (global/static) should be a | |
207 | fraction of the size of the other, but there's no data at the moment | |
208 | on which to decide. */ | |
209 | unsigned int size; | |
210 | ||
52059ffd | 211 | struct symbol_cache_slot symbols[1]; |
f57d2163 DE |
212 | }; |
213 | ||
82f910ea PW |
214 | /* Clear all slots of BSC and free BSC. */ |
215 | ||
216 | static void | |
217 | destroy_block_symbol_cache (struct block_symbol_cache *bsc) | |
218 | { | |
219 | if (bsc != nullptr) | |
220 | { | |
221 | for (unsigned int i = 0; i < bsc->size; i++) | |
222 | symbol_cache_clear_slot (&bsc->symbols[i]); | |
223 | xfree (bsc); | |
224 | } | |
225 | } | |
226 | ||
f57d2163 DE |
227 | /* The symbol cache. |
228 | ||
229 | Searching for symbols in the static and global blocks over multiple objfiles | |
230 | again and again can be slow, as can searching very big objfiles. This is a | |
231 | simple cache to improve symbol lookup performance, which is critical to | |
232 | overall gdb performance. | |
233 | ||
234 | Symbols are hashed on the name, its domain, and block. | |
235 | They are also hashed on their objfile for objfile-specific lookups. */ | |
236 | ||
237 | struct symbol_cache | |
238 | { | |
3017b94d TT |
239 | symbol_cache () = default; |
240 | ||
241 | ~symbol_cache () | |
242 | { | |
82f910ea PW |
243 | destroy_block_symbol_cache (global_symbols); |
244 | destroy_block_symbol_cache (static_symbols); | |
3017b94d TT |
245 | } |
246 | ||
247 | struct block_symbol_cache *global_symbols = nullptr; | |
248 | struct block_symbol_cache *static_symbols = nullptr; | |
f57d2163 DE |
249 | }; |
250 | ||
3017b94d TT |
251 | /* Program space key for finding its symbol cache. */ |
252 | ||
253 | static const program_space_key<symbol_cache> symbol_cache_key; | |
254 | ||
45cfd468 | 255 | /* When non-zero, print debugging messages related to symtab creation. */ |
db0fec5c | 256 | unsigned int symtab_create_debug = 0; |
45cfd468 | 257 | |
cc485e62 DE |
258 | /* When non-zero, print debugging messages related to symbol lookup. */ |
259 | unsigned int symbol_lookup_debug = 0; | |
260 | ||
f57d2163 DE |
261 | /* The size of the cache is staged here. */ |
262 | static unsigned int new_symbol_cache_size = DEFAULT_SYMBOL_CACHE_SIZE; | |
263 | ||
264 | /* The current value of the symbol cache size. | |
265 | This is saved so that if the user enters a value too big we can restore | |
266 | the original value from here. */ | |
267 | static unsigned int symbol_cache_size = DEFAULT_SYMBOL_CACHE_SIZE; | |
268 | ||
491144b5 | 269 | /* True if a file may be known by two different basenames. |
c011a4f4 DE |
270 | This is the uncommon case, and significantly slows down gdb. |
271 | Default set to "off" to not slow down the common case. */ | |
491144b5 | 272 | bool basenames_may_differ = false; |
c011a4f4 | 273 | |
717d2f5a JB |
274 | /* Allow the user to configure the debugger behavior with respect |
275 | to multiple-choice menus when more than one symbol matches during | |
276 | a symbol lookup. */ | |
277 | ||
7fc830e2 MK |
278 | const char multiple_symbols_ask[] = "ask"; |
279 | const char multiple_symbols_all[] = "all"; | |
280 | const char multiple_symbols_cancel[] = "cancel"; | |
40478521 | 281 | static const char *const multiple_symbols_modes[] = |
717d2f5a JB |
282 | { |
283 | multiple_symbols_ask, | |
284 | multiple_symbols_all, | |
285 | multiple_symbols_cancel, | |
286 | NULL | |
287 | }; | |
288 | static const char *multiple_symbols_mode = multiple_symbols_all; | |
289 | ||
290 | /* Read-only accessor to AUTO_SELECT_MODE. */ | |
291 | ||
292 | const char * | |
293 | multiple_symbols_select_mode (void) | |
294 | { | |
295 | return multiple_symbols_mode; | |
296 | } | |
297 | ||
20c681d1 DE |
298 | /* Return the name of a domain_enum. */ |
299 | ||
300 | const char * | |
301 | domain_name (domain_enum e) | |
302 | { | |
303 | switch (e) | |
304 | { | |
305 | case UNDEF_DOMAIN: return "UNDEF_DOMAIN"; | |
306 | case VAR_DOMAIN: return "VAR_DOMAIN"; | |
307 | case STRUCT_DOMAIN: return "STRUCT_DOMAIN"; | |
540feddf | 308 | case MODULE_DOMAIN: return "MODULE_DOMAIN"; |
20c681d1 DE |
309 | case LABEL_DOMAIN: return "LABEL_DOMAIN"; |
310 | case COMMON_BLOCK_DOMAIN: return "COMMON_BLOCK_DOMAIN"; | |
311 | default: gdb_assert_not_reached ("bad domain_enum"); | |
312 | } | |
313 | } | |
314 | ||
315 | /* Return the name of a search_domain . */ | |
316 | ||
317 | const char * | |
318 | search_domain_name (enum search_domain e) | |
319 | { | |
320 | switch (e) | |
321 | { | |
322 | case VARIABLES_DOMAIN: return "VARIABLES_DOMAIN"; | |
323 | case FUNCTIONS_DOMAIN: return "FUNCTIONS_DOMAIN"; | |
324 | case TYPES_DOMAIN: return "TYPES_DOMAIN"; | |
59c35742 | 325 | case MODULES_DOMAIN: return "MODULES_DOMAIN"; |
20c681d1 DE |
326 | case ALL_DOMAIN: return "ALL_DOMAIN"; |
327 | default: gdb_assert_not_reached ("bad search_domain"); | |
328 | } | |
329 | } | |
330 | ||
43f3e411 | 331 | /* See symtab.h. */ |
db0fec5c | 332 | |
43f3e411 DE |
333 | struct symtab * |
334 | compunit_primary_filetab (const struct compunit_symtab *cust) | |
db0fec5c | 335 | { |
43f3e411 | 336 | gdb_assert (COMPUNIT_FILETABS (cust) != NULL); |
db0fec5c | 337 | |
43f3e411 DE |
338 | /* The primary file symtab is the first one in the list. */ |
339 | return COMPUNIT_FILETABS (cust); | |
340 | } | |
341 | ||
342 | /* See symtab.h. */ | |
343 | ||
344 | enum language | |
345 | compunit_language (const struct compunit_symtab *cust) | |
346 | { | |
347 | struct symtab *symtab = compunit_primary_filetab (cust); | |
348 | ||
349 | /* The language of the compunit symtab is the language of its primary | |
350 | source file. */ | |
351 | return SYMTAB_LANGUAGE (symtab); | |
db0fec5c DE |
352 | } |
353 | ||
1ed9f74e PW |
354 | /* See symtab.h. */ |
355 | ||
356 | bool | |
357 | minimal_symbol::data_p () const | |
358 | { | |
359 | return type == mst_data | |
360 | || type == mst_bss | |
361 | || type == mst_abs | |
362 | || type == mst_file_data | |
363 | || type == mst_file_bss; | |
364 | } | |
365 | ||
366 | /* See symtab.h. */ | |
367 | ||
368 | bool | |
369 | minimal_symbol::text_p () const | |
370 | { | |
371 | return type == mst_text | |
372 | || type == mst_text_gnu_ifunc | |
373 | || type == mst_data_gnu_ifunc | |
374 | || type == mst_slot_got_plt | |
375 | || type == mst_solib_trampoline | |
376 | || type == mst_file_text; | |
377 | } | |
378 | ||
4aac40c8 TT |
379 | /* See whether FILENAME matches SEARCH_NAME using the rule that we |
380 | advertise to the user. (The manual's description of linespecs | |
af529f8f JK |
381 | describes what we advertise). Returns true if they match, false |
382 | otherwise. */ | |
4aac40c8 | 383 | |
ececd218 | 384 | bool |
b57a636e | 385 | compare_filenames_for_search (const char *filename, const char *search_name) |
4aac40c8 TT |
386 | { |
387 | int len = strlen (filename); | |
b57a636e | 388 | size_t search_len = strlen (search_name); |
4aac40c8 TT |
389 | |
390 | if (len < search_len) | |
ececd218 | 391 | return false; |
4aac40c8 TT |
392 | |
393 | /* The tail of FILENAME must match. */ | |
394 | if (FILENAME_CMP (filename + len - search_len, search_name) != 0) | |
ececd218 | 395 | return false; |
4aac40c8 TT |
396 | |
397 | /* Either the names must completely match, or the character | |
398 | preceding the trailing SEARCH_NAME segment of FILENAME must be a | |
d84fca2c JK |
399 | directory separator. |
400 | ||
af529f8f JK |
401 | The check !IS_ABSOLUTE_PATH ensures SEARCH_NAME "/dir/file.c" |
402 | cannot match FILENAME "/path//dir/file.c" - as user has requested | |
403 | absolute path. The sama applies for "c:\file.c" possibly | |
404 | incorrectly hypothetically matching "d:\dir\c:\file.c". | |
405 | ||
d84fca2c JK |
406 | The HAS_DRIVE_SPEC purpose is to make FILENAME "c:file.c" |
407 | compatible with SEARCH_NAME "file.c". In such case a compiler had | |
408 | to put the "c:file.c" name into debug info. Such compatibility | |
409 | works only on GDB built for DOS host. */ | |
4aac40c8 | 410 | return (len == search_len |
af529f8f JK |
411 | || (!IS_ABSOLUTE_PATH (search_name) |
412 | && IS_DIR_SEPARATOR (filename[len - search_len - 1])) | |
4aac40c8 TT |
413 | || (HAS_DRIVE_SPEC (filename) |
414 | && STRIP_DRIVE_SPEC (filename) == &filename[len - search_len])); | |
415 | } | |
416 | ||
cce0e923 DE |
417 | /* Same as compare_filenames_for_search, but for glob-style patterns. |
418 | Heads up on the order of the arguments. They match the order of | |
419 | compare_filenames_for_search, but it's the opposite of the order of | |
420 | arguments to gdb_filename_fnmatch. */ | |
421 | ||
ececd218 | 422 | bool |
cce0e923 DE |
423 | compare_glob_filenames_for_search (const char *filename, |
424 | const char *search_name) | |
425 | { | |
426 | /* We rely on the property of glob-style patterns with FNM_FILE_NAME that | |
427 | all /s have to be explicitly specified. */ | |
428 | int file_path_elements = count_path_elements (filename); | |
429 | int search_path_elements = count_path_elements (search_name); | |
430 | ||
431 | if (search_path_elements > file_path_elements) | |
ececd218 | 432 | return false; |
cce0e923 DE |
433 | |
434 | if (IS_ABSOLUTE_PATH (search_name)) | |
435 | { | |
436 | return (search_path_elements == file_path_elements | |
437 | && gdb_filename_fnmatch (search_name, filename, | |
438 | FNM_FILE_NAME | FNM_NOESCAPE) == 0); | |
439 | } | |
440 | ||
441 | { | |
442 | const char *file_to_compare | |
443 | = strip_leading_path_elements (filename, | |
444 | file_path_elements - search_path_elements); | |
445 | ||
446 | return gdb_filename_fnmatch (search_name, file_to_compare, | |
447 | FNM_FILE_NAME | FNM_NOESCAPE) == 0; | |
448 | } | |
449 | } | |
450 | ||
f8eba3c6 TT |
451 | /* Check for a symtab of a specific name by searching some symtabs. |
452 | This is a helper function for callbacks of iterate_over_symtabs. | |
c906108c | 453 | |
b2d23133 DE |
454 | If NAME is not absolute, then REAL_PATH is NULL |
455 | If NAME is absolute, then REAL_PATH is the gdb_realpath form of NAME. | |
456 | ||
14bc53a8 PA |
457 | The return value, NAME, REAL_PATH and CALLBACK are identical to the |
458 | `map_symtabs_matching_filename' method of quick_symbol_functions. | |
f8eba3c6 | 459 | |
43f3e411 DE |
460 | FIRST and AFTER_LAST indicate the range of compunit symtabs to search. |
461 | Each symtab within the specified compunit symtab is also searched. | |
462 | AFTER_LAST is one past the last compunit symtab to search; NULL means to | |
f8eba3c6 TT |
463 | search until the end of the list. */ |
464 | ||
14bc53a8 | 465 | bool |
f8eba3c6 | 466 | iterate_over_some_symtabs (const char *name, |
f8eba3c6 | 467 | const char *real_path, |
43f3e411 | 468 | struct compunit_symtab *first, |
14bc53a8 PA |
469 | struct compunit_symtab *after_last, |
470 | gdb::function_view<bool (symtab *)> callback) | |
c906108c | 471 | { |
43f3e411 | 472 | struct compunit_symtab *cust; |
c011a4f4 | 473 | const char* base_name = lbasename (name); |
1f84b619 | 474 | |
43f3e411 | 475 | for (cust = first; cust != NULL && cust != after_last; cust = cust->next) |
f079a2e5 | 476 | { |
5accd1a0 | 477 | for (symtab *s : compunit_filetabs (cust)) |
a94e8645 | 478 | { |
43f3e411 DE |
479 | if (compare_filenames_for_search (s->filename, name)) |
480 | { | |
14bc53a8 PA |
481 | if (callback (s)) |
482 | return true; | |
43f3e411 DE |
483 | continue; |
484 | } | |
a94e8645 | 485 | |
43f3e411 DE |
486 | /* Before we invoke realpath, which can get expensive when many |
487 | files are involved, do a quick comparison of the basenames. */ | |
488 | if (! basenames_may_differ | |
489 | && FILENAME_CMP (base_name, lbasename (s->filename)) != 0) | |
490 | continue; | |
a94e8645 | 491 | |
43f3e411 | 492 | if (compare_filenames_for_search (symtab_to_fullname (s), name)) |
a94e8645 | 493 | { |
14bc53a8 PA |
494 | if (callback (s)) |
495 | return true; | |
a94e8645 DE |
496 | continue; |
497 | } | |
43f3e411 DE |
498 | |
499 | /* If the user gave us an absolute path, try to find the file in | |
500 | this symtab and use its absolute path. */ | |
501 | if (real_path != NULL) | |
502 | { | |
503 | const char *fullname = symtab_to_fullname (s); | |
504 | ||
505 | gdb_assert (IS_ABSOLUTE_PATH (real_path)); | |
506 | gdb_assert (IS_ABSOLUTE_PATH (name)); | |
7e785608 TV |
507 | gdb::unique_xmalloc_ptr<char> fullname_real_path |
508 | = gdb_realpath (fullname); | |
509 | fullname = fullname_real_path.get (); | |
43f3e411 DE |
510 | if (FILENAME_CMP (real_path, fullname) == 0) |
511 | { | |
14bc53a8 PA |
512 | if (callback (s)) |
513 | return true; | |
43f3e411 DE |
514 | continue; |
515 | } | |
516 | } | |
a94e8645 | 517 | } |
f8eba3c6 | 518 | } |
58d370e0 | 519 | |
14bc53a8 | 520 | return false; |
f8eba3c6 TT |
521 | } |
522 | ||
523 | /* Check for a symtab of a specific name; first in symtabs, then in | |
524 | psymtabs. *If* there is no '/' in the name, a match after a '/' | |
525 | in the symtab filename will also work. | |
526 | ||
14bc53a8 PA |
527 | Calls CALLBACK with each symtab that is found. If CALLBACK returns |
528 | true, the search stops. */ | |
f8eba3c6 TT |
529 | |
530 | void | |
531 | iterate_over_symtabs (const char *name, | |
14bc53a8 | 532 | gdb::function_view<bool (symtab *)> callback) |
f8eba3c6 | 533 | { |
14bc53a8 | 534 | gdb::unique_xmalloc_ptr<char> real_path; |
f8eba3c6 TT |
535 | |
536 | /* Here we are interested in canonicalizing an absolute path, not | |
537 | absolutizing a relative path. */ | |
538 | if (IS_ABSOLUTE_PATH (name)) | |
539 | { | |
14278e1f | 540 | real_path = gdb_realpath (name); |
14bc53a8 | 541 | gdb_assert (IS_ABSOLUTE_PATH (real_path.get ())); |
f8eba3c6 TT |
542 | } |
543 | ||
2030c079 | 544 | for (objfile *objfile : current_program_space->objfiles ()) |
14bc53a8 PA |
545 | { |
546 | if (iterate_over_some_symtabs (name, real_path.get (), | |
547 | objfile->compunit_symtabs, NULL, | |
548 | callback)) | |
f8eba3c6 | 549 | return; |
14bc53a8 | 550 | } |
f8eba3c6 | 551 | |
c906108c SS |
552 | /* Same search rules as above apply here, but now we look thru the |
553 | psymtabs. */ | |
554 | ||
2030c079 | 555 | for (objfile *objfile : current_program_space->objfiles ()) |
14bc53a8 PA |
556 | { |
557 | if (objfile->sf | |
558 | && objfile->sf->qf->map_symtabs_matching_filename (objfile, | |
559 | name, | |
560 | real_path.get (), | |
561 | callback)) | |
f8eba3c6 | 562 | return; |
14bc53a8 | 563 | } |
c906108c | 564 | } |
f8eba3c6 TT |
565 | |
566 | /* A wrapper for iterate_over_symtabs that returns the first matching | |
567 | symtab, or NULL. */ | |
568 | ||
569 | struct symtab * | |
570 | lookup_symtab (const char *name) | |
571 | { | |
572 | struct symtab *result = NULL; | |
573 | ||
14bc53a8 PA |
574 | iterate_over_symtabs (name, [&] (symtab *symtab) |
575 | { | |
576 | result = symtab; | |
577 | return true; | |
578 | }); | |
579 | ||
f8eba3c6 TT |
580 | return result; |
581 | } | |
582 | ||
c906108c SS |
583 | \f |
584 | /* Mangle a GDB method stub type. This actually reassembles the pieces of the | |
585 | full method name, which consist of the class name (from T), the unadorned | |
586 | method name from METHOD_ID, and the signature for the specific overload, | |
c378eb4e | 587 | specified by SIGNATURE_ID. Note that this function is g++ specific. */ |
c906108c SS |
588 | |
589 | char * | |
fba45db2 | 590 | gdb_mangle_name (struct type *type, int method_id, int signature_id) |
c906108c SS |
591 | { |
592 | int mangled_name_len; | |
593 | char *mangled_name; | |
594 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
595 | struct fn_field *method = &f[signature_id]; | |
0d5cff50 | 596 | const char *field_name = TYPE_FN_FIELDLIST_NAME (type, method_id); |
1d06ead6 | 597 | const char *physname = TYPE_FN_FIELD_PHYSNAME (f, signature_id); |
7d93a1e0 | 598 | const char *newname = type->name (); |
c906108c SS |
599 | |
600 | /* Does the form of physname indicate that it is the full mangled name | |
601 | of a constructor (not just the args)? */ | |
602 | int is_full_physname_constructor; | |
603 | ||
604 | int is_constructor; | |
015a42b4 | 605 | int is_destructor = is_destructor_name (physname); |
c906108c | 606 | /* Need a new type prefix. */ |
e6a959d6 PA |
607 | const char *const_prefix = method->is_const ? "C" : ""; |
608 | const char *volatile_prefix = method->is_volatile ? "V" : ""; | |
c906108c SS |
609 | char buf[20]; |
610 | int len = (newname == NULL ? 0 : strlen (newname)); | |
611 | ||
43630227 PS |
612 | /* Nothing to do if physname already contains a fully mangled v3 abi name |
613 | or an operator name. */ | |
614 | if ((physname[0] == '_' && physname[1] == 'Z') | |
615 | || is_operator_name (field_name)) | |
235d1e03 EZ |
616 | return xstrdup (physname); |
617 | ||
015a42b4 | 618 | is_full_physname_constructor = is_constructor_name (physname); |
c906108c | 619 | |
3e43a32a MS |
620 | is_constructor = is_full_physname_constructor |
621 | || (newname && strcmp (field_name, newname) == 0); | |
c906108c SS |
622 | |
623 | if (!is_destructor) | |
61012eef | 624 | is_destructor = (startswith (physname, "__dt")); |
c906108c SS |
625 | |
626 | if (is_destructor || is_full_physname_constructor) | |
627 | { | |
c5aa993b JM |
628 | mangled_name = (char *) xmalloc (strlen (physname) + 1); |
629 | strcpy (mangled_name, physname); | |
c906108c SS |
630 | return mangled_name; |
631 | } | |
632 | ||
633 | if (len == 0) | |
634 | { | |
8c042590 | 635 | xsnprintf (buf, sizeof (buf), "__%s%s", const_prefix, volatile_prefix); |
c906108c SS |
636 | } |
637 | else if (physname[0] == 't' || physname[0] == 'Q') | |
638 | { | |
639 | /* The physname for template and qualified methods already includes | |
c5aa993b | 640 | the class name. */ |
8c042590 | 641 | xsnprintf (buf, sizeof (buf), "__%s%s", const_prefix, volatile_prefix); |
c906108c SS |
642 | newname = NULL; |
643 | len = 0; | |
644 | } | |
645 | else | |
646 | { | |
8c042590 PM |
647 | xsnprintf (buf, sizeof (buf), "__%s%s%d", const_prefix, |
648 | volatile_prefix, len); | |
c906108c SS |
649 | } |
650 | mangled_name_len = ((is_constructor ? 0 : strlen (field_name)) | |
235d1e03 | 651 | + strlen (buf) + len + strlen (physname) + 1); |
c906108c | 652 | |
433759f7 MS |
653 | mangled_name = (char *) xmalloc (mangled_name_len); |
654 | if (is_constructor) | |
655 | mangled_name[0] = '\0'; | |
656 | else | |
657 | strcpy (mangled_name, field_name); | |
658 | ||
c906108c SS |
659 | strcat (mangled_name, buf); |
660 | /* If the class doesn't have a name, i.e. newname NULL, then we just | |
661 | mangle it using 0 for the length of the class. Thus it gets mangled | |
c378eb4e | 662 | as something starting with `::' rather than `classname::'. */ |
c906108c SS |
663 | if (newname != NULL) |
664 | strcat (mangled_name, newname); | |
665 | ||
666 | strcat (mangled_name, physname); | |
667 | return (mangled_name); | |
668 | } | |
12af6855 | 669 | |
ff985671 | 670 | /* See symtab.h. */ |
eca864fe | 671 | |
b250c185 | 672 | void |
ff985671 TT |
673 | general_symbol_info::set_demangled_name (const char *name, |
674 | struct obstack *obstack) | |
b250c185 | 675 | { |
ff985671 | 676 | if (language () == language_ada) |
f85f34ed TT |
677 | { |
678 | if (name == NULL) | |
679 | { | |
ff985671 TT |
680 | ada_mangled = 0; |
681 | language_specific.obstack = obstack; | |
f85f34ed TT |
682 | } |
683 | else | |
684 | { | |
ff985671 TT |
685 | ada_mangled = 1; |
686 | language_specific.demangled_name = name; | |
f85f34ed TT |
687 | } |
688 | } | |
29df156d | 689 | else |
ff985671 | 690 | language_specific.demangled_name = name; |
b250c185 SW |
691 | } |
692 | ||
12af6855 | 693 | \f |
89aad1f9 | 694 | /* Initialize the language dependent portion of a symbol |
c378eb4e | 695 | depending upon the language for the symbol. */ |
eca864fe | 696 | |
89aad1f9 | 697 | void |
d3ecddab CB |
698 | general_symbol_info::set_language (enum language language, |
699 | struct obstack *obstack) | |
89aad1f9 | 700 | { |
d3ecddab | 701 | m_language = language; |
c1b5c1eb CB |
702 | if (language == language_cplus |
703 | || language == language_d | |
704 | || language == language_go | |
705 | || language == language_objc | |
706 | || language == language_fortran) | |
89aad1f9 | 707 | { |
ff985671 | 708 | set_demangled_name (NULL, obstack); |
f85f34ed | 709 | } |
c1b5c1eb | 710 | else if (language == language_ada) |
f85f34ed | 711 | { |
d3ecddab CB |
712 | gdb_assert (ada_mangled == 0); |
713 | language_specific.obstack = obstack; | |
89aad1f9 | 714 | } |
89aad1f9 EZ |
715 | else |
716 | { | |
d3ecddab | 717 | memset (&language_specific, 0, sizeof (language_specific)); |
89aad1f9 EZ |
718 | } |
719 | } | |
720 | ||
2de7ced7 DJ |
721 | /* Functions to initialize a symbol's mangled name. */ |
722 | ||
04a679b8 TT |
723 | /* Objects of this type are stored in the demangled name hash table. */ |
724 | struct demangled_name_entry | |
725 | { | |
3a494279 CB |
726 | demangled_name_entry (gdb::string_view mangled_name) |
727 | : mangled (mangled_name) {} | |
728 | ||
7bb43059 | 729 | gdb::string_view mangled; |
403772ef | 730 | enum language language; |
5396ae17 | 731 | gdb::unique_xmalloc_ptr<char> demangled; |
04a679b8 TT |
732 | }; |
733 | ||
734 | /* Hash function for the demangled name hash. */ | |
eca864fe | 735 | |
04a679b8 TT |
736 | static hashval_t |
737 | hash_demangled_name_entry (const void *data) | |
738 | { | |
19ba03f4 SM |
739 | const struct demangled_name_entry *e |
740 | = (const struct demangled_name_entry *) data; | |
433759f7 | 741 | |
1a6ff1a9 | 742 | return fast_hash (e->mangled.data (), e->mangled.length ()); |
04a679b8 TT |
743 | } |
744 | ||
745 | /* Equality function for the demangled name hash. */ | |
eca864fe | 746 | |
04a679b8 TT |
747 | static int |
748 | eq_demangled_name_entry (const void *a, const void *b) | |
749 | { | |
19ba03f4 SM |
750 | const struct demangled_name_entry *da |
751 | = (const struct demangled_name_entry *) a; | |
752 | const struct demangled_name_entry *db | |
753 | = (const struct demangled_name_entry *) b; | |
433759f7 | 754 | |
7bb43059 | 755 | return da->mangled == db->mangled; |
04a679b8 TT |
756 | } |
757 | ||
3a494279 CB |
758 | static void |
759 | free_demangled_name_entry (void *data) | |
760 | { | |
761 | struct demangled_name_entry *e | |
762 | = (struct demangled_name_entry *) data; | |
763 | ||
764 | e->~demangled_name_entry(); | |
765 | } | |
766 | ||
2de7ced7 DJ |
767 | /* Create the hash table used for demangled names. Each hash entry is |
768 | a pair of strings; one for the mangled name and one for the demangled | |
769 | name. The entry is hashed via just the mangled name. */ | |
770 | ||
771 | static void | |
0f14768a | 772 | create_demangled_names_hash (struct objfile_per_bfd_storage *per_bfd) |
2de7ced7 DJ |
773 | { |
774 | /* Choose 256 as the starting size of the hash table, somewhat arbitrarily. | |
9af17804 | 775 | The hash table code will round this up to the next prime number. |
2de7ced7 | 776 | Choosing a much larger table size wastes memory, and saves only about |
f8bab2d6 CB |
777 | 1% in symbol reading. However, if the minsym count is already |
778 | initialized (e.g. because symbol name setting was deferred to | |
779 | a background thread) we can initialize the hashtable with a count | |
780 | based on that, because we will almost certainly have at least that | |
781 | many entries. If we have a nonzero number but less than 256, | |
782 | we still stay with 256 to have some space for psymbols, etc. */ | |
783 | ||
784 | /* htab will expand the table when it is 3/4th full, so we account for that | |
785 | here. +2 to round up. */ | |
786 | int minsym_based_count = (per_bfd->minimal_symbol_count + 2) / 3 * 4; | |
787 | int count = std::max (per_bfd->minimal_symbol_count, minsym_based_count); | |
2de7ced7 | 788 | |
db92718b | 789 | per_bfd->demangled_names_hash.reset (htab_create_alloc |
f8bab2d6 | 790 | (count, hash_demangled_name_entry, eq_demangled_name_entry, |
3a494279 | 791 | free_demangled_name_entry, xcalloc, xfree)); |
2de7ced7 | 792 | } |
12af6855 | 793 | |
d55c9a68 | 794 | /* See symtab.h */ |
12af6855 | 795 | |
d55c9a68 | 796 | char * |
2de7ced7 DJ |
797 | symbol_find_demangled_name (struct general_symbol_info *gsymbol, |
798 | const char *mangled) | |
12af6855 | 799 | { |
12af6855 | 800 | char *demangled = NULL; |
8b302db8 | 801 | int i; |
12af6855 | 802 | |
c1b5c1eb CB |
803 | if (gsymbol->language () == language_unknown) |
804 | gsymbol->m_language = language_auto; | |
1bae87b9 | 805 | |
c1b5c1eb | 806 | if (gsymbol->language () != language_auto) |
1bae87b9 | 807 | { |
c1b5c1eb | 808 | const struct language_defn *lang = language_def (gsymbol->language ()); |
8b302db8 | 809 | |
6f827019 | 810 | lang->sniff_from_mangled_name (mangled, &demangled); |
8b302db8 | 811 | return demangled; |
6aecb9c2 | 812 | } |
8b302db8 TT |
813 | |
814 | for (i = language_unknown; i < nr_languages; ++i) | |
a766d390 | 815 | { |
8b302db8 TT |
816 | enum language l = (enum language) i; |
817 | const struct language_defn *lang = language_def (l); | |
818 | ||
6f827019 | 819 | if (lang->sniff_from_mangled_name (mangled, &demangled)) |
a766d390 | 820 | { |
c1b5c1eb | 821 | gsymbol->m_language = l; |
a766d390 DE |
822 | return demangled; |
823 | } | |
824 | } | |
825 | ||
2de7ced7 DJ |
826 | return NULL; |
827 | } | |
828 | ||
980cae7a | 829 | /* Set both the mangled and demangled (if any) names for GSYMBOL based |
04a679b8 TT |
830 | on LINKAGE_NAME and LEN. Ordinarily, NAME is copied onto the |
831 | objfile's obstack; but if COPY_NAME is 0 and if NAME is | |
832 | NUL-terminated, then this function assumes that NAME is already | |
833 | correctly saved (either permanently or with a lifetime tied to the | |
834 | objfile), and it will not be copied. | |
835 | ||
836 | The hash table corresponding to OBJFILE is used, and the memory | |
84a1243b | 837 | comes from the per-BFD storage_obstack. LINKAGE_NAME is copied, |
04a679b8 | 838 | so the pointer can be discarded after calling this function. */ |
2de7ced7 DJ |
839 | |
840 | void | |
4d4eaa30 CB |
841 | general_symbol_info::compute_and_set_names (gdb::string_view linkage_name, |
842 | bool copy_name, | |
843 | objfile_per_bfd_storage *per_bfd, | |
844 | gdb::optional<hashval_t> hash) | |
2de7ced7 | 845 | { |
04a679b8 | 846 | struct demangled_name_entry **slot; |
2de7ced7 | 847 | |
4d4eaa30 | 848 | if (language () == language_ada) |
b06ead72 JB |
849 | { |
850 | /* In Ada, we do the symbol lookups using the mangled name, so | |
9c37b5ae | 851 | we can save some space by not storing the demangled name. */ |
92174eea | 852 | if (!copy_name) |
4d4eaa30 | 853 | m_name = linkage_name.data (); |
04a679b8 | 854 | else |
869d8950 TT |
855 | m_name = obstack_strndup (&per_bfd->storage_obstack, |
856 | linkage_name.data (), | |
857 | linkage_name.length ()); | |
ff985671 | 858 | set_demangled_name (NULL, &per_bfd->storage_obstack); |
b06ead72 JB |
859 | |
860 | return; | |
861 | } | |
862 | ||
84a1243b | 863 | if (per_bfd->demangled_names_hash == NULL) |
0f14768a | 864 | create_demangled_names_hash (per_bfd); |
04a679b8 | 865 | |
31edb802 | 866 | struct demangled_name_entry entry (linkage_name); |
e76b2246 CB |
867 | if (!hash.has_value ()) |
868 | hash = hash_demangled_name_entry (&entry); | |
04a679b8 | 869 | slot = ((struct demangled_name_entry **) |
e76b2246 CB |
870 | htab_find_slot_with_hash (per_bfd->demangled_names_hash.get (), |
871 | &entry, *hash, INSERT)); | |
2de7ced7 | 872 | |
57d75002 CB |
873 | /* The const_cast is safe because the only reason it is already |
874 | initialized is if we purposefully set it from a background | |
875 | thread to avoid doing the work here. However, it is still | |
876 | allocated from the heap and needs to be freed by us, just | |
877 | like if we called symbol_find_demangled_name here. If this is | |
878 | nullptr, we call symbol_find_demangled_name below, but we put | |
879 | this smart pointer here to be sure that we don't leak this name. */ | |
880 | gdb::unique_xmalloc_ptr<char> demangled_name | |
881 | (const_cast<char *> (language_specific.demangled_name)); | |
882 | ||
2de7ced7 | 883 | /* If this name is not in the hash table, add it. */ |
a766d390 DE |
884 | if (*slot == NULL |
885 | /* A C version of the symbol may have already snuck into the table. | |
886 | This happens to, e.g., main.init (__go_init_main). Cope. */ | |
4d4eaa30 | 887 | || (language () == language_go && (*slot)->demangled == nullptr)) |
2de7ced7 | 888 | { |
0c921b21 CB |
889 | /* A 0-terminated copy of the linkage name. Callers must set COPY_NAME |
890 | to true if the string might not be nullterminated. We have to make | |
891 | this copy because demangling needs a nullterminated string. */ | |
31edb802 | 892 | gdb::string_view linkage_name_copy; |
0c921b21 CB |
893 | if (copy_name) |
894 | { | |
31edb802 CB |
895 | char *alloc_name = (char *) alloca (linkage_name.length () + 1); |
896 | memcpy (alloc_name, linkage_name.data (), linkage_name.length ()); | |
897 | alloc_name[linkage_name.length ()] = '\0'; | |
0c921b21 | 898 | |
31edb802 CB |
899 | linkage_name_copy = gdb::string_view (alloc_name, |
900 | linkage_name.length ()); | |
0c921b21 CB |
901 | } |
902 | else | |
903 | linkage_name_copy = linkage_name; | |
904 | ||
57d75002 CB |
905 | if (demangled_name.get () == nullptr) |
906 | demangled_name.reset | |
907 | (symbol_find_demangled_name (this, linkage_name_copy.data ())); | |
2de7ced7 | 908 | |
04a679b8 | 909 | /* Suppose we have demangled_name==NULL, copy_name==0, and |
9c37b5ae | 910 | linkage_name_copy==linkage_name. In this case, we already have the |
04a679b8 TT |
911 | mangled name saved, and we don't have a demangled name. So, |
912 | you might think we could save a little space by not recording | |
913 | this in the hash table at all. | |
5396ae17 | 914 | |
04a679b8 TT |
915 | It turns out that it is actually important to still save such |
916 | an entry in the hash table, because storing this name gives | |
705b5767 | 917 | us better bcache hit rates for partial symbols. */ |
0c921b21 | 918 | if (!copy_name) |
04a679b8 | 919 | { |
224c3ddb SM |
920 | *slot |
921 | = ((struct demangled_name_entry *) | |
922 | obstack_alloc (&per_bfd->storage_obstack, | |
5396ae17 | 923 | sizeof (demangled_name_entry))); |
31edb802 | 924 | new (*slot) demangled_name_entry (linkage_name); |
04a679b8 TT |
925 | } |
926 | else | |
927 | { | |
928 | /* If we must copy the mangled name, put it directly after | |
5396ae17 | 929 | the struct so we can have a single allocation. */ |
224c3ddb SM |
930 | *slot |
931 | = ((struct demangled_name_entry *) | |
932 | obstack_alloc (&per_bfd->storage_obstack, | |
31edb802 CB |
933 | sizeof (demangled_name_entry) |
934 | + linkage_name.length () + 1)); | |
5396ae17 | 935 | char *mangled_ptr = reinterpret_cast<char *> (*slot + 1); |
31edb802 CB |
936 | memcpy (mangled_ptr, linkage_name.data (), linkage_name.length ()); |
937 | mangled_ptr [linkage_name.length ()] = '\0'; | |
3a494279 | 938 | new (*slot) demangled_name_entry |
31edb802 | 939 | (gdb::string_view (mangled_ptr, linkage_name.length ())); |
04a679b8 | 940 | } |
d55c9a68 | 941 | (*slot)->demangled = std::move (demangled_name); |
4d4eaa30 | 942 | (*slot)->language = language (); |
2de7ced7 | 943 | } |
4d4eaa30 CB |
944 | else if (language () == language_unknown || language () == language_auto) |
945 | m_language = (*slot)->language; | |
2de7ced7 | 946 | |
4d4eaa30 | 947 | m_name = (*slot)->mangled.data (); |
ff985671 | 948 | set_demangled_name ((*slot)->demangled.get (), &per_bfd->storage_obstack); |
2de7ced7 DJ |
949 | } |
950 | ||
c9d95fa3 | 951 | /* See symtab.h. */ |
22abf04a | 952 | |
0d5cff50 | 953 | const char * |
c9d95fa3 | 954 | general_symbol_info::natural_name () const |
22abf04a | 955 | { |
c1b5c1eb | 956 | switch (language ()) |
22abf04a | 957 | { |
1f8173e6 | 958 | case language_cplus: |
6aecb9c2 | 959 | case language_d: |
a766d390 | 960 | case language_go: |
1f8173e6 | 961 | case language_objc: |
f55ee35c | 962 | case language_fortran: |
8c87a452 | 963 | case language_rust: |
7151c1af TT |
964 | if (language_specific.demangled_name != nullptr) |
965 | return language_specific.demangled_name; | |
1f8173e6 PH |
966 | break; |
967 | case language_ada: | |
c9d95fa3 | 968 | return ada_decode_symbol (this); |
1f8173e6 PH |
969 | default: |
970 | break; | |
22abf04a | 971 | } |
4d4eaa30 | 972 | return linkage_name (); |
22abf04a DC |
973 | } |
974 | ||
c9d95fa3 | 975 | /* See symtab.h. */ |
eca864fe | 976 | |
0d5cff50 | 977 | const char * |
c9d95fa3 | 978 | general_symbol_info::demangled_name () const |
9cc0d196 | 979 | { |
c6e5ee5e SDJ |
980 | const char *dem_name = NULL; |
981 | ||
c1b5c1eb | 982 | switch (language ()) |
1f8173e6 PH |
983 | { |
984 | case language_cplus: | |
6aecb9c2 | 985 | case language_d: |
a766d390 | 986 | case language_go: |
1f8173e6 | 987 | case language_objc: |
f55ee35c | 988 | case language_fortran: |
8c87a452 | 989 | case language_rust: |
7151c1af | 990 | dem_name = language_specific.demangled_name; |
1f8173e6 PH |
991 | break; |
992 | case language_ada: | |
c9d95fa3 | 993 | dem_name = ada_decode_symbol (this); |
1f8173e6 PH |
994 | break; |
995 | default: | |
996 | break; | |
997 | } | |
c6e5ee5e | 998 | return dem_name; |
9cc0d196 | 999 | } |
fe39c653 | 1000 | |
c9d95fa3 | 1001 | /* See symtab.h. */ |
eca864fe | 1002 | |
0d5cff50 | 1003 | const char * |
c9d95fa3 | 1004 | general_symbol_info::search_name () const |
fc062ac6 | 1005 | { |
c1b5c1eb | 1006 | if (language () == language_ada) |
4d4eaa30 | 1007 | return linkage_name (); |
1f8173e6 | 1008 | else |
c9d95fa3 | 1009 | return natural_name (); |
4725b721 | 1010 | } |
b5ec771e PA |
1011 | |
1012 | /* See symtab.h. */ | |
1013 | ||
1014 | bool | |
1015 | symbol_matches_search_name (const struct general_symbol_info *gsymbol, | |
1016 | const lookup_name_info &name) | |
1017 | { | |
1018 | symbol_name_matcher_ftype *name_match | |
c9debfb9 | 1019 | = language_def (gsymbol->language ())->get_symbol_name_matcher (name); |
c9d95fa3 | 1020 | return name_match (gsymbol->search_name (), name, NULL); |
b5ec771e PA |
1021 | } |
1022 | ||
c906108c SS |
1023 | \f |
1024 | ||
ececd218 | 1025 | /* Return true if the two sections are the same, or if they could |
94277a38 DJ |
1026 | plausibly be copies of each other, one in an original object |
1027 | file and another in a separated debug file. */ | |
1028 | ||
ececd218 | 1029 | bool |
714835d5 UW |
1030 | matching_obj_sections (struct obj_section *obj_first, |
1031 | struct obj_section *obj_second) | |
94277a38 | 1032 | { |
714835d5 UW |
1033 | asection *first = obj_first? obj_first->the_bfd_section : NULL; |
1034 | asection *second = obj_second? obj_second->the_bfd_section : NULL; | |
94277a38 DJ |
1035 | |
1036 | /* If they're the same section, then they match. */ | |
1037 | if (first == second) | |
ececd218 | 1038 | return true; |
94277a38 DJ |
1039 | |
1040 | /* If either is NULL, give up. */ | |
1041 | if (first == NULL || second == NULL) | |
ececd218 | 1042 | return false; |
94277a38 DJ |
1043 | |
1044 | /* This doesn't apply to absolute symbols. */ | |
1045 | if (first->owner == NULL || second->owner == NULL) | |
ececd218 | 1046 | return false; |
94277a38 DJ |
1047 | |
1048 | /* If they're in the same object file, they must be different sections. */ | |
1049 | if (first->owner == second->owner) | |
ececd218 | 1050 | return false; |
94277a38 DJ |
1051 | |
1052 | /* Check whether the two sections are potentially corresponding. They must | |
1053 | have the same size, address, and name. We can't compare section indexes, | |
1054 | which would be more reliable, because some sections may have been | |
1055 | stripped. */ | |
fd361982 | 1056 | if (bfd_section_size (first) != bfd_section_size (second)) |
ececd218 | 1057 | return false; |
94277a38 | 1058 | |
818f79f6 | 1059 | /* In-memory addresses may start at a different offset, relativize them. */ |
fd361982 AM |
1060 | if (bfd_section_vma (first) - bfd_get_start_address (first->owner) |
1061 | != bfd_section_vma (second) - bfd_get_start_address (second->owner)) | |
ececd218 | 1062 | return false; |
94277a38 | 1063 | |
fd361982 AM |
1064 | if (bfd_section_name (first) == NULL |
1065 | || bfd_section_name (second) == NULL | |
1066 | || strcmp (bfd_section_name (first), bfd_section_name (second)) != 0) | |
ececd218 | 1067 | return false; |
94277a38 DJ |
1068 | |
1069 | /* Otherwise check that they are in corresponding objfiles. */ | |
1070 | ||
9d7c67bf | 1071 | struct objfile *obj = NULL; |
2030c079 | 1072 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
1073 | if (objfile->obfd == first->owner) |
1074 | { | |
1075 | obj = objfile; | |
1076 | break; | |
1077 | } | |
94277a38 DJ |
1078 | gdb_assert (obj != NULL); |
1079 | ||
1080 | if (obj->separate_debug_objfile != NULL | |
1081 | && obj->separate_debug_objfile->obfd == second->owner) | |
ececd218 | 1082 | return true; |
94277a38 DJ |
1083 | if (obj->separate_debug_objfile_backlink != NULL |
1084 | && obj->separate_debug_objfile_backlink->obfd == second->owner) | |
ececd218 | 1085 | return true; |
94277a38 | 1086 | |
ececd218 | 1087 | return false; |
94277a38 | 1088 | } |
c5aa993b | 1089 | |
2097ae25 DE |
1090 | /* See symtab.h. */ |
1091 | ||
1092 | void | |
1093 | expand_symtab_containing_pc (CORE_ADDR pc, struct obj_section *section) | |
c906108c | 1094 | { |
77e371c0 | 1095 | struct bound_minimal_symbol msymbol; |
8a48e967 DJ |
1096 | |
1097 | /* If we know that this is not a text address, return failure. This is | |
1098 | necessary because we loop based on texthigh and textlow, which do | |
1099 | not include the data ranges. */ | |
77e371c0 | 1100 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); |
1ed9f74e | 1101 | if (msymbol.minsym && msymbol.minsym->data_p ()) |
2097ae25 | 1102 | return; |
c906108c | 1103 | |
2030c079 | 1104 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
1105 | { |
1106 | struct compunit_symtab *cust = NULL; | |
433759f7 | 1107 | |
aed57c53 TT |
1108 | if (objfile->sf) |
1109 | cust = objfile->sf->qf->find_pc_sect_compunit_symtab (objfile, msymbol, | |
1110 | pc, section, 0); | |
1111 | if (cust) | |
1112 | return; | |
1113 | } | |
c906108c | 1114 | } |
c906108c | 1115 | \f |
f57d2163 DE |
1116 | /* Hash function for the symbol cache. */ |
1117 | ||
1118 | static unsigned int | |
1119 | hash_symbol_entry (const struct objfile *objfile_context, | |
1120 | const char *name, domain_enum domain) | |
1121 | { | |
1122 | unsigned int hash = (uintptr_t) objfile_context; | |
1123 | ||
1124 | if (name != NULL) | |
1125 | hash += htab_hash_string (name); | |
1126 | ||
2c26b84f DE |
1127 | /* Because of symbol_matches_domain we need VAR_DOMAIN and STRUCT_DOMAIN |
1128 | to map to the same slot. */ | |
1129 | if (domain == STRUCT_DOMAIN) | |
1130 | hash += VAR_DOMAIN * 7; | |
1131 | else | |
1132 | hash += domain * 7; | |
f57d2163 DE |
1133 | |
1134 | return hash; | |
1135 | } | |
1136 | ||
1137 | /* Equality function for the symbol cache. */ | |
1138 | ||
1139 | static int | |
1140 | eq_symbol_entry (const struct symbol_cache_slot *slot, | |
1141 | const struct objfile *objfile_context, | |
1142 | const char *name, domain_enum domain) | |
1143 | { | |
1144 | const char *slot_name; | |
1145 | domain_enum slot_domain; | |
1146 | ||
1147 | if (slot->state == SYMBOL_SLOT_UNUSED) | |
1148 | return 0; | |
1149 | ||
1150 | if (slot->objfile_context != objfile_context) | |
1151 | return 0; | |
1152 | ||
1153 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
1154 | { | |
1155 | slot_name = slot->value.not_found.name; | |
1156 | slot_domain = slot->value.not_found.domain; | |
1157 | } | |
1158 | else | |
1159 | { | |
987012b8 | 1160 | slot_name = slot->value.found.symbol->search_name (); |
d12307c1 | 1161 | slot_domain = SYMBOL_DOMAIN (slot->value.found.symbol); |
f57d2163 DE |
1162 | } |
1163 | ||
1164 | /* NULL names match. */ | |
1165 | if (slot_name == NULL && name == NULL) | |
1166 | { | |
1167 | /* But there's no point in calling symbol_matches_domain in the | |
1168 | SYMBOL_SLOT_FOUND case. */ | |
1169 | if (slot_domain != domain) | |
1170 | return 0; | |
1171 | } | |
1172 | else if (slot_name != NULL && name != NULL) | |
1173 | { | |
b5ec771e PA |
1174 | /* It's important that we use the same comparison that was done |
1175 | the first time through. If the slot records a found symbol, | |
1176 | then this means using the symbol name comparison function of | |
987012b8 | 1177 | the symbol's language with symbol->search_name (). See |
b5ec771e PA |
1178 | dictionary.c. It also means using symbol_matches_domain for |
1179 | found symbols. See block.c. | |
f57d2163 DE |
1180 | |
1181 | If the slot records a not-found symbol, then require a precise match. | |
1182 | We could still be lax with whitespace like strcmp_iw though. */ | |
1183 | ||
1184 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
1185 | { | |
1186 | if (strcmp (slot_name, name) != 0) | |
1187 | return 0; | |
1188 | if (slot_domain != domain) | |
1189 | return 0; | |
1190 | } | |
1191 | else | |
1192 | { | |
d12307c1 | 1193 | struct symbol *sym = slot->value.found.symbol; |
b5ec771e | 1194 | lookup_name_info lookup_name (name, symbol_name_match_type::FULL); |
f57d2163 | 1195 | |
b5ec771e | 1196 | if (!SYMBOL_MATCHES_SEARCH_NAME (sym, lookup_name)) |
f57d2163 | 1197 | return 0; |
b5ec771e | 1198 | |
c1b5c1eb | 1199 | if (!symbol_matches_domain (sym->language (), slot_domain, domain)) |
f57d2163 DE |
1200 | return 0; |
1201 | } | |
1202 | } | |
1203 | else | |
1204 | { | |
1205 | /* Only one name is NULL. */ | |
1206 | return 0; | |
1207 | } | |
1208 | ||
1209 | return 1; | |
1210 | } | |
1211 | ||
1212 | /* Given a cache of size SIZE, return the size of the struct (with variable | |
1213 | length array) in bytes. */ | |
1214 | ||
1215 | static size_t | |
1216 | symbol_cache_byte_size (unsigned int size) | |
1217 | { | |
1218 | return (sizeof (struct block_symbol_cache) | |
1219 | + ((size - 1) * sizeof (struct symbol_cache_slot))); | |
1220 | } | |
1221 | ||
1222 | /* Resize CACHE. */ | |
1223 | ||
1224 | static void | |
1225 | resize_symbol_cache (struct symbol_cache *cache, unsigned int new_size) | |
1226 | { | |
1227 | /* If there's no change in size, don't do anything. | |
1228 | All caches have the same size, so we can just compare with the size | |
1229 | of the global symbols cache. */ | |
1230 | if ((cache->global_symbols != NULL | |
1231 | && cache->global_symbols->size == new_size) | |
1232 | || (cache->global_symbols == NULL | |
1233 | && new_size == 0)) | |
1234 | return; | |
1235 | ||
82f910ea PW |
1236 | destroy_block_symbol_cache (cache->global_symbols); |
1237 | destroy_block_symbol_cache (cache->static_symbols); | |
f57d2163 DE |
1238 | |
1239 | if (new_size == 0) | |
1240 | { | |
1241 | cache->global_symbols = NULL; | |
1242 | cache->static_symbols = NULL; | |
1243 | } | |
1244 | else | |
1245 | { | |
1246 | size_t total_size = symbol_cache_byte_size (new_size); | |
1247 | ||
224c3ddb SM |
1248 | cache->global_symbols |
1249 | = (struct block_symbol_cache *) xcalloc (1, total_size); | |
1250 | cache->static_symbols | |
1251 | = (struct block_symbol_cache *) xcalloc (1, total_size); | |
f57d2163 DE |
1252 | cache->global_symbols->size = new_size; |
1253 | cache->static_symbols->size = new_size; | |
1254 | } | |
1255 | } | |
1256 | ||
f57d2163 DE |
1257 | /* Return the symbol cache of PSPACE. |
1258 | Create one if it doesn't exist yet. */ | |
1259 | ||
1260 | static struct symbol_cache * | |
1261 | get_symbol_cache (struct program_space *pspace) | |
1262 | { | |
3017b94d | 1263 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 DE |
1264 | |
1265 | if (cache == NULL) | |
1266 | { | |
3017b94d TT |
1267 | cache = symbol_cache_key.emplace (pspace); |
1268 | resize_symbol_cache (cache, symbol_cache_size); | |
f57d2163 DE |
1269 | } |
1270 | ||
1271 | return cache; | |
1272 | } | |
1273 | ||
f57d2163 DE |
1274 | /* Set the size of the symbol cache in all program spaces. */ |
1275 | ||
1276 | static void | |
1277 | set_symbol_cache_size (unsigned int new_size) | |
1278 | { | |
94c93c35 | 1279 | for (struct program_space *pspace : program_spaces) |
f57d2163 | 1280 | { |
3017b94d | 1281 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 DE |
1282 | |
1283 | /* The pspace could have been created but not have a cache yet. */ | |
1284 | if (cache != NULL) | |
1285 | resize_symbol_cache (cache, new_size); | |
1286 | } | |
1287 | } | |
1288 | ||
1289 | /* Called when symbol-cache-size is set. */ | |
1290 | ||
1291 | static void | |
eb4c3f4a | 1292 | set_symbol_cache_size_handler (const char *args, int from_tty, |
f57d2163 DE |
1293 | struct cmd_list_element *c) |
1294 | { | |
1295 | if (new_symbol_cache_size > MAX_SYMBOL_CACHE_SIZE) | |
1296 | { | |
1297 | /* Restore the previous value. | |
1298 | This is the value the "show" command prints. */ | |
1299 | new_symbol_cache_size = symbol_cache_size; | |
1300 | ||
1301 | error (_("Symbol cache size is too large, max is %u."), | |
1302 | MAX_SYMBOL_CACHE_SIZE); | |
1303 | } | |
1304 | symbol_cache_size = new_symbol_cache_size; | |
1305 | ||
1306 | set_symbol_cache_size (symbol_cache_size); | |
1307 | } | |
1308 | ||
1309 | /* Lookup symbol NAME,DOMAIN in BLOCK in the symbol cache of PSPACE. | |
1310 | OBJFILE_CONTEXT is the current objfile, which may be NULL. | |
1311 | The result is the symbol if found, SYMBOL_LOOKUP_FAILED if a previous lookup | |
1312 | failed (and thus this one will too), or NULL if the symbol is not present | |
1313 | in the cache. | |
d0509ba4 CB |
1314 | *BSC_PTR and *SLOT_PTR are set to the cache and slot of the symbol, which |
1315 | can be used to save the result of a full lookup attempt. */ | |
f57d2163 | 1316 | |
d12307c1 | 1317 | static struct block_symbol |
f57d2163 | 1318 | symbol_cache_lookup (struct symbol_cache *cache, |
ddbcedf5 | 1319 | struct objfile *objfile_context, enum block_enum block, |
f57d2163 DE |
1320 | const char *name, domain_enum domain, |
1321 | struct block_symbol_cache **bsc_ptr, | |
1322 | struct symbol_cache_slot **slot_ptr) | |
1323 | { | |
1324 | struct block_symbol_cache *bsc; | |
1325 | unsigned int hash; | |
1326 | struct symbol_cache_slot *slot; | |
1327 | ||
1328 | if (block == GLOBAL_BLOCK) | |
1329 | bsc = cache->global_symbols; | |
1330 | else | |
1331 | bsc = cache->static_symbols; | |
1332 | if (bsc == NULL) | |
1333 | { | |
1334 | *bsc_ptr = NULL; | |
1335 | *slot_ptr = NULL; | |
6640a367 | 1336 | return {}; |
f57d2163 DE |
1337 | } |
1338 | ||
1339 | hash = hash_symbol_entry (objfile_context, name, domain); | |
1340 | slot = bsc->symbols + hash % bsc->size; | |
f57d2163 | 1341 | |
d0509ba4 CB |
1342 | *bsc_ptr = bsc; |
1343 | *slot_ptr = slot; | |
1344 | ||
f57d2163 DE |
1345 | if (eq_symbol_entry (slot, objfile_context, name, domain)) |
1346 | { | |
1347 | if (symbol_lookup_debug) | |
1348 | fprintf_unfiltered (gdb_stdlog, | |
1349 | "%s block symbol cache hit%s for %s, %s\n", | |
1350 | block == GLOBAL_BLOCK ? "Global" : "Static", | |
1351 | slot->state == SYMBOL_SLOT_NOT_FOUND | |
1352 | ? " (not found)" : "", | |
1353 | name, domain_name (domain)); | |
1354 | ++bsc->hits; | |
1355 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
1356 | return SYMBOL_LOOKUP_FAILED; | |
1357 | return slot->value.found; | |
1358 | } | |
1359 | ||
2c26b84f DE |
1360 | /* Symbol is not present in the cache. */ |
1361 | ||
f57d2163 DE |
1362 | if (symbol_lookup_debug) |
1363 | { | |
1364 | fprintf_unfiltered (gdb_stdlog, | |
1365 | "%s block symbol cache miss for %s, %s\n", | |
1366 | block == GLOBAL_BLOCK ? "Global" : "Static", | |
1367 | name, domain_name (domain)); | |
1368 | } | |
1369 | ++bsc->misses; | |
6640a367 | 1370 | return {}; |
f57d2163 DE |
1371 | } |
1372 | ||
f57d2163 DE |
1373 | /* Mark SYMBOL as found in SLOT. |
1374 | OBJFILE_CONTEXT is the current objfile when the lookup was done, or NULL | |
1375 | if it's not needed to distinguish lookups (STATIC_BLOCK). It is *not* | |
1376 | necessarily the objfile the symbol was found in. */ | |
1377 | ||
1378 | static void | |
1379 | symbol_cache_mark_found (struct block_symbol_cache *bsc, | |
1380 | struct symbol_cache_slot *slot, | |
1381 | struct objfile *objfile_context, | |
d12307c1 PMR |
1382 | struct symbol *symbol, |
1383 | const struct block *block) | |
f57d2163 DE |
1384 | { |
1385 | if (bsc == NULL) | |
1386 | return; | |
1387 | if (slot->state != SYMBOL_SLOT_UNUSED) | |
1388 | { | |
1389 | ++bsc->collisions; | |
1390 | symbol_cache_clear_slot (slot); | |
1391 | } | |
1392 | slot->state = SYMBOL_SLOT_FOUND; | |
1393 | slot->objfile_context = objfile_context; | |
d12307c1 PMR |
1394 | slot->value.found.symbol = symbol; |
1395 | slot->value.found.block = block; | |
f57d2163 DE |
1396 | } |
1397 | ||
1398 | /* Mark symbol NAME, DOMAIN as not found in SLOT. | |
1399 | OBJFILE_CONTEXT is the current objfile when the lookup was done, or NULL | |
1400 | if it's not needed to distinguish lookups (STATIC_BLOCK). */ | |
1401 | ||
1402 | static void | |
1403 | symbol_cache_mark_not_found (struct block_symbol_cache *bsc, | |
1404 | struct symbol_cache_slot *slot, | |
1405 | struct objfile *objfile_context, | |
1406 | const char *name, domain_enum domain) | |
1407 | { | |
1408 | if (bsc == NULL) | |
1409 | return; | |
1410 | if (slot->state != SYMBOL_SLOT_UNUSED) | |
1411 | { | |
1412 | ++bsc->collisions; | |
1413 | symbol_cache_clear_slot (slot); | |
1414 | } | |
1415 | slot->state = SYMBOL_SLOT_NOT_FOUND; | |
1416 | slot->objfile_context = objfile_context; | |
1417 | slot->value.not_found.name = xstrdup (name); | |
1418 | slot->value.not_found.domain = domain; | |
1419 | } | |
1420 | ||
1421 | /* Flush the symbol cache of PSPACE. */ | |
1422 | ||
1423 | static void | |
1424 | symbol_cache_flush (struct program_space *pspace) | |
1425 | { | |
3017b94d | 1426 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 | 1427 | int pass; |
f57d2163 DE |
1428 | |
1429 | if (cache == NULL) | |
1430 | return; | |
1431 | if (cache->global_symbols == NULL) | |
1432 | { | |
1433 | gdb_assert (symbol_cache_size == 0); | |
1434 | gdb_assert (cache->static_symbols == NULL); | |
1435 | return; | |
1436 | } | |
1437 | ||
1438 | /* If the cache is untouched since the last flush, early exit. | |
1439 | This is important for performance during the startup of a program linked | |
1440 | with 100s (or 1000s) of shared libraries. */ | |
1441 | if (cache->global_symbols->misses == 0 | |
1442 | && cache->static_symbols->misses == 0) | |
1443 | return; | |
1444 | ||
1445 | gdb_assert (cache->global_symbols->size == symbol_cache_size); | |
1446 | gdb_assert (cache->static_symbols->size == symbol_cache_size); | |
1447 | ||
1448 | for (pass = 0; pass < 2; ++pass) | |
1449 | { | |
1450 | struct block_symbol_cache *bsc | |
1451 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1452 | unsigned int i; | |
1453 | ||
1454 | for (i = 0; i < bsc->size; ++i) | |
1455 | symbol_cache_clear_slot (&bsc->symbols[i]); | |
1456 | } | |
1457 | ||
1458 | cache->global_symbols->hits = 0; | |
1459 | cache->global_symbols->misses = 0; | |
1460 | cache->global_symbols->collisions = 0; | |
1461 | cache->static_symbols->hits = 0; | |
1462 | cache->static_symbols->misses = 0; | |
1463 | cache->static_symbols->collisions = 0; | |
1464 | } | |
1465 | ||
1466 | /* Dump CACHE. */ | |
1467 | ||
1468 | static void | |
1469 | symbol_cache_dump (const struct symbol_cache *cache) | |
1470 | { | |
1471 | int pass; | |
1472 | ||
1473 | if (cache->global_symbols == NULL) | |
1474 | { | |
1475 | printf_filtered (" <disabled>\n"); | |
1476 | return; | |
1477 | } | |
1478 | ||
1479 | for (pass = 0; pass < 2; ++pass) | |
1480 | { | |
1481 | const struct block_symbol_cache *bsc | |
1482 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1483 | unsigned int i; | |
1484 | ||
1485 | if (pass == 0) | |
1486 | printf_filtered ("Global symbols:\n"); | |
1487 | else | |
1488 | printf_filtered ("Static symbols:\n"); | |
1489 | ||
1490 | for (i = 0; i < bsc->size; ++i) | |
1491 | { | |
1492 | const struct symbol_cache_slot *slot = &bsc->symbols[i]; | |
1493 | ||
1494 | QUIT; | |
1495 | ||
1496 | switch (slot->state) | |
1497 | { | |
1498 | case SYMBOL_SLOT_UNUSED: | |
1499 | break; | |
1500 | case SYMBOL_SLOT_NOT_FOUND: | |
2c26b84f | 1501 | printf_filtered (" [%4u] = %s, %s %s (not found)\n", i, |
f57d2163 | 1502 | host_address_to_string (slot->objfile_context), |
2c26b84f DE |
1503 | slot->value.not_found.name, |
1504 | domain_name (slot->value.not_found.domain)); | |
f57d2163 DE |
1505 | break; |
1506 | case SYMBOL_SLOT_FOUND: | |
d12307c1 PMR |
1507 | { |
1508 | struct symbol *found = slot->value.found.symbol; | |
1509 | const struct objfile *context = slot->objfile_context; | |
1510 | ||
1511 | printf_filtered (" [%4u] = %s, %s %s\n", i, | |
1512 | host_address_to_string (context), | |
987012b8 | 1513 | found->print_name (), |
d12307c1 PMR |
1514 | domain_name (SYMBOL_DOMAIN (found))); |
1515 | break; | |
1516 | } | |
f57d2163 DE |
1517 | } |
1518 | } | |
1519 | } | |
1520 | } | |
1521 | ||
1522 | /* The "mt print symbol-cache" command. */ | |
1523 | ||
1524 | static void | |
510e5e56 | 1525 | maintenance_print_symbol_cache (const char *args, int from_tty) |
f57d2163 | 1526 | { |
94c93c35 | 1527 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1528 | { |
1529 | struct symbol_cache *cache; | |
1530 | ||
1531 | printf_filtered (_("Symbol cache for pspace %d\n%s:\n"), | |
1532 | pspace->num, | |
1533 | pspace->symfile_object_file != NULL | |
1534 | ? objfile_name (pspace->symfile_object_file) | |
1535 | : "(no object file)"); | |
1536 | ||
1537 | /* If the cache hasn't been created yet, avoid creating one. */ | |
3017b94d | 1538 | cache = symbol_cache_key.get (pspace); |
f57d2163 DE |
1539 | if (cache == NULL) |
1540 | printf_filtered (" <empty>\n"); | |
1541 | else | |
1542 | symbol_cache_dump (cache); | |
1543 | } | |
1544 | } | |
1545 | ||
1546 | /* The "mt flush-symbol-cache" command. */ | |
1547 | ||
1548 | static void | |
510e5e56 | 1549 | maintenance_flush_symbol_cache (const char *args, int from_tty) |
f57d2163 | 1550 | { |
94c93c35 | 1551 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1552 | { |
1553 | symbol_cache_flush (pspace); | |
1554 | } | |
1555 | } | |
1556 | ||
1557 | /* Print usage statistics of CACHE. */ | |
1558 | ||
1559 | static void | |
1560 | symbol_cache_stats (struct symbol_cache *cache) | |
1561 | { | |
1562 | int pass; | |
1563 | ||
1564 | if (cache->global_symbols == NULL) | |
1565 | { | |
1566 | printf_filtered (" <disabled>\n"); | |
1567 | return; | |
1568 | } | |
1569 | ||
1570 | for (pass = 0; pass < 2; ++pass) | |
1571 | { | |
1572 | const struct block_symbol_cache *bsc | |
1573 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1574 | ||
1575 | QUIT; | |
1576 | ||
1577 | if (pass == 0) | |
1578 | printf_filtered ("Global block cache stats:\n"); | |
1579 | else | |
1580 | printf_filtered ("Static block cache stats:\n"); | |
1581 | ||
1582 | printf_filtered (" size: %u\n", bsc->size); | |
1583 | printf_filtered (" hits: %u\n", bsc->hits); | |
1584 | printf_filtered (" misses: %u\n", bsc->misses); | |
1585 | printf_filtered (" collisions: %u\n", bsc->collisions); | |
1586 | } | |
1587 | } | |
1588 | ||
1589 | /* The "mt print symbol-cache-statistics" command. */ | |
1590 | ||
1591 | static void | |
510e5e56 | 1592 | maintenance_print_symbol_cache_statistics (const char *args, int from_tty) |
f57d2163 | 1593 | { |
94c93c35 | 1594 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1595 | { |
1596 | struct symbol_cache *cache; | |
1597 | ||
1598 | printf_filtered (_("Symbol cache statistics for pspace %d\n%s:\n"), | |
1599 | pspace->num, | |
1600 | pspace->symfile_object_file != NULL | |
1601 | ? objfile_name (pspace->symfile_object_file) | |
1602 | : "(no object file)"); | |
1603 | ||
1604 | /* If the cache hasn't been created yet, avoid creating one. */ | |
3017b94d | 1605 | cache = symbol_cache_key.get (pspace); |
f57d2163 DE |
1606 | if (cache == NULL) |
1607 | printf_filtered (" empty, no stats available\n"); | |
1608 | else | |
1609 | symbol_cache_stats (cache); | |
1610 | } | |
1611 | } | |
1612 | ||
1613 | /* This module's 'new_objfile' observer. */ | |
1614 | ||
1615 | static void | |
1616 | symtab_new_objfile_observer (struct objfile *objfile) | |
1617 | { | |
1618 | /* Ideally we'd use OBJFILE->pspace, but OBJFILE may be NULL. */ | |
1619 | symbol_cache_flush (current_program_space); | |
1620 | } | |
1621 | ||
1622 | /* This module's 'free_objfile' observer. */ | |
1623 | ||
1624 | static void | |
1625 | symtab_free_objfile_observer (struct objfile *objfile) | |
1626 | { | |
1627 | symbol_cache_flush (objfile->pspace); | |
1628 | } | |
1629 | \f | |
c906108c SS |
1630 | /* Debug symbols usually don't have section information. We need to dig that |
1631 | out of the minimal symbols and stash that in the debug symbol. */ | |
1632 | ||
ccefe4c4 | 1633 | void |
907fc202 UW |
1634 | fixup_section (struct general_symbol_info *ginfo, |
1635 | CORE_ADDR addr, struct objfile *objfile) | |
c906108c SS |
1636 | { |
1637 | struct minimal_symbol *msym; | |
c906108c | 1638 | |
bccdca4a UW |
1639 | /* First, check whether a minimal symbol with the same name exists |
1640 | and points to the same address. The address check is required | |
1641 | e.g. on PowerPC64, where the minimal symbol for a function will | |
1642 | point to the function descriptor, while the debug symbol will | |
1643 | point to the actual function code. */ | |
4d4eaa30 CB |
1644 | msym = lookup_minimal_symbol_by_pc_name (addr, ginfo->linkage_name (), |
1645 | objfile); | |
907fc202 | 1646 | if (msym) |
efd66ac6 | 1647 | ginfo->section = MSYMBOL_SECTION (msym); |
907fc202 | 1648 | else |
19e2d14b KB |
1649 | { |
1650 | /* Static, function-local variables do appear in the linker | |
1651 | (minimal) symbols, but are frequently given names that won't | |
1652 | be found via lookup_minimal_symbol(). E.g., it has been | |
1653 | observed in frv-uclinux (ELF) executables that a static, | |
1654 | function-local variable named "foo" might appear in the | |
1655 | linker symbols as "foo.6" or "foo.3". Thus, there is no | |
1656 | point in attempting to extend the lookup-by-name mechanism to | |
1657 | handle this case due to the fact that there can be multiple | |
1658 | names. | |
9af17804 | 1659 | |
19e2d14b KB |
1660 | So, instead, search the section table when lookup by name has |
1661 | failed. The ``addr'' and ``endaddr'' fields may have already | |
6a053cb1 TT |
1662 | been relocated. If so, the relocation offset needs to be |
1663 | subtracted from these values when performing the comparison. | |
1664 | We unconditionally subtract it, because, when no relocation | |
1665 | has been performed, the value will simply be zero. | |
9af17804 | 1666 | |
19e2d14b KB |
1667 | The address of the symbol whose section we're fixing up HAS |
1668 | NOT BEEN adjusted (relocated) yet. It can't have been since | |
1669 | the section isn't yet known and knowing the section is | |
1670 | necessary in order to add the correct relocation value. In | |
1671 | other words, we wouldn't even be in this function (attempting | |
1672 | to compute the section) if it were already known. | |
1673 | ||
1674 | Note that it is possible to search the minimal symbols | |
1675 | (subtracting the relocation value if necessary) to find the | |
1676 | matching minimal symbol, but this is overkill and much less | |
1677 | efficient. It is not necessary to find the matching minimal | |
9af17804 DE |
1678 | symbol, only its section. |
1679 | ||
19e2d14b KB |
1680 | Note that this technique (of doing a section table search) |
1681 | can fail when unrelocated section addresses overlap. For | |
1682 | this reason, we still attempt a lookup by name prior to doing | |
1683 | a search of the section table. */ | |
9af17804 | 1684 | |
19e2d14b | 1685 | struct obj_section *s; |
e27d198c | 1686 | int fallback = -1; |
433759f7 | 1687 | |
19e2d14b KB |
1688 | ALL_OBJFILE_OSECTIONS (objfile, s) |
1689 | { | |
65cf3563 | 1690 | int idx = s - objfile->sections; |
6a053cb1 | 1691 | CORE_ADDR offset = objfile->section_offsets[idx]; |
19e2d14b | 1692 | |
e27d198c TT |
1693 | if (fallback == -1) |
1694 | fallback = idx; | |
1695 | ||
f1f6aadf PA |
1696 | if (obj_section_addr (s) - offset <= addr |
1697 | && addr < obj_section_endaddr (s) - offset) | |
19e2d14b | 1698 | { |
19e2d14b KB |
1699 | ginfo->section = idx; |
1700 | return; | |
1701 | } | |
1702 | } | |
e27d198c TT |
1703 | |
1704 | /* If we didn't find the section, assume it is in the first | |
1705 | section. If there is no allocated section, then it hardly | |
1706 | matters what we pick, so just pick zero. */ | |
1707 | if (fallback == -1) | |
1708 | ginfo->section = 0; | |
1709 | else | |
1710 | ginfo->section = fallback; | |
19e2d14b | 1711 | } |
c906108c SS |
1712 | } |
1713 | ||
1714 | struct symbol * | |
fba45db2 | 1715 | fixup_symbol_section (struct symbol *sym, struct objfile *objfile) |
c906108c | 1716 | { |
907fc202 UW |
1717 | CORE_ADDR addr; |
1718 | ||
c906108c SS |
1719 | if (!sym) |
1720 | return NULL; | |
1721 | ||
1994afbf DE |
1722 | if (!SYMBOL_OBJFILE_OWNED (sym)) |
1723 | return sym; | |
1724 | ||
907fc202 UW |
1725 | /* We either have an OBJFILE, or we can get at it from the sym's |
1726 | symtab. Anything else is a bug. */ | |
08be3fe3 | 1727 | gdb_assert (objfile || symbol_symtab (sym)); |
907fc202 UW |
1728 | |
1729 | if (objfile == NULL) | |
08be3fe3 | 1730 | objfile = symbol_objfile (sym); |
907fc202 | 1731 | |
e27d198c TT |
1732 | if (SYMBOL_OBJ_SECTION (objfile, sym)) |
1733 | return sym; | |
1734 | ||
907fc202 UW |
1735 | /* We should have an objfile by now. */ |
1736 | gdb_assert (objfile); | |
1737 | ||
1738 | switch (SYMBOL_CLASS (sym)) | |
1739 | { | |
1740 | case LOC_STATIC: | |
1741 | case LOC_LABEL: | |
907fc202 UW |
1742 | addr = SYMBOL_VALUE_ADDRESS (sym); |
1743 | break; | |
1744 | case LOC_BLOCK: | |
2b1ffcfd | 1745 | addr = BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (sym)); |
907fc202 UW |
1746 | break; |
1747 | ||
1748 | default: | |
1749 | /* Nothing else will be listed in the minsyms -- no use looking | |
1750 | it up. */ | |
1751 | return sym; | |
1752 | } | |
1753 | ||
468c0cbb | 1754 | fixup_section (sym, addr, objfile); |
c906108c SS |
1755 | |
1756 | return sym; | |
1757 | } | |
1758 | ||
b5ec771e PA |
1759 | /* See symtab.h. */ |
1760 | ||
1761 | demangle_for_lookup_info::demangle_for_lookup_info | |
1762 | (const lookup_name_info &lookup_name, language lang) | |
1763 | { | |
1764 | demangle_result_storage storage; | |
1765 | ||
c62446b1 PA |
1766 | if (lookup_name.ignore_parameters () && lang == language_cplus) |
1767 | { | |
1768 | gdb::unique_xmalloc_ptr<char> without_params | |
e0802d59 | 1769 | = cp_remove_params_if_any (lookup_name.c_str (), |
c62446b1 PA |
1770 | lookup_name.completion_mode ()); |
1771 | ||
1772 | if (without_params != NULL) | |
1773 | { | |
de63c46b PA |
1774 | if (lookup_name.match_type () != symbol_name_match_type::SEARCH_NAME) |
1775 | m_demangled_name = demangle_for_lookup (without_params.get (), | |
1776 | lang, storage); | |
c62446b1 PA |
1777 | return; |
1778 | } | |
1779 | } | |
1780 | ||
de63c46b | 1781 | if (lookup_name.match_type () == symbol_name_match_type::SEARCH_NAME) |
e0802d59 | 1782 | m_demangled_name = lookup_name.c_str (); |
de63c46b | 1783 | else |
e0802d59 | 1784 | m_demangled_name = demangle_for_lookup (lookup_name.c_str (), |
de63c46b | 1785 | lang, storage); |
b5ec771e PA |
1786 | } |
1787 | ||
1788 | /* See symtab.h. */ | |
1789 | ||
1790 | const lookup_name_info & | |
1791 | lookup_name_info::match_any () | |
1792 | { | |
1793 | /* Lookup any symbol that "" would complete. I.e., this matches all | |
1794 | symbol names. */ | |
e0802d59 | 1795 | static const lookup_name_info lookup_name ("", symbol_name_match_type::FULL, |
b5ec771e PA |
1796 | true); |
1797 | ||
1798 | return lookup_name; | |
1799 | } | |
1800 | ||
f8eba3c6 | 1801 | /* Compute the demangled form of NAME as used by the various symbol |
2f408ecb PA |
1802 | lookup functions. The result can either be the input NAME |
1803 | directly, or a pointer to a buffer owned by the STORAGE object. | |
f8eba3c6 | 1804 | |
2f408ecb | 1805 | For Ada, this function just returns NAME, unmodified. |
f8eba3c6 TT |
1806 | Normally, Ada symbol lookups are performed using the encoded name |
1807 | rather than the demangled name, and so it might seem to make sense | |
1808 | for this function to return an encoded version of NAME. | |
1809 | Unfortunately, we cannot do this, because this function is used in | |
1810 | circumstances where it is not appropriate to try to encode NAME. | |
1811 | For instance, when displaying the frame info, we demangle the name | |
1812 | of each parameter, and then perform a symbol lookup inside our | |
1813 | function using that demangled name. In Ada, certain functions | |
1814 | have internally-generated parameters whose name contain uppercase | |
1815 | characters. Encoding those name would result in those uppercase | |
1816 | characters to become lowercase, and thus cause the symbol lookup | |
1817 | to fail. */ | |
c906108c | 1818 | |
2f408ecb | 1819 | const char * |
f8eba3c6 | 1820 | demangle_for_lookup (const char *name, enum language lang, |
2f408ecb | 1821 | demangle_result_storage &storage) |
c906108c | 1822 | { |
9c37b5ae | 1823 | /* If we are using C++, D, or Go, demangle the name before doing a |
c378eb4e | 1824 | lookup, so we can always binary search. */ |
53c5240f | 1825 | if (lang == language_cplus) |
729051e6 | 1826 | { |
2f408ecb PA |
1827 | char *demangled_name = gdb_demangle (name, DMGL_ANSI | DMGL_PARAMS); |
1828 | if (demangled_name != NULL) | |
1829 | return storage.set_malloc_ptr (demangled_name); | |
1830 | ||
1831 | /* If we were given a non-mangled name, canonicalize it | |
1832 | according to the language (so far only for C++). */ | |
596dc4ad TT |
1833 | gdb::unique_xmalloc_ptr<char> canon = cp_canonicalize_string (name); |
1834 | if (canon != nullptr) | |
1835 | return storage.set_malloc_ptr (std::move (canon)); | |
729051e6 | 1836 | } |
6aecb9c2 JB |
1837 | else if (lang == language_d) |
1838 | { | |
2f408ecb PA |
1839 | char *demangled_name = d_demangle (name, 0); |
1840 | if (demangled_name != NULL) | |
1841 | return storage.set_malloc_ptr (demangled_name); | |
6aecb9c2 | 1842 | } |
a766d390 DE |
1843 | else if (lang == language_go) |
1844 | { | |
2f408ecb PA |
1845 | char *demangled_name = go_demangle (name, 0); |
1846 | if (demangled_name != NULL) | |
1847 | return storage.set_malloc_ptr (demangled_name); | |
a766d390 | 1848 | } |
729051e6 | 1849 | |
2f408ecb | 1850 | return name; |
f8eba3c6 TT |
1851 | } |
1852 | ||
5ffa0793 PA |
1853 | /* See symtab.h. */ |
1854 | ||
1855 | unsigned int | |
1856 | search_name_hash (enum language language, const char *search_name) | |
1857 | { | |
fb8006fd | 1858 | return language_def (language)->search_name_hash (search_name); |
5ffa0793 PA |
1859 | } |
1860 | ||
cf901d3b | 1861 | /* See symtab.h. |
f8eba3c6 | 1862 | |
cf901d3b | 1863 | This function (or rather its subordinates) have a bunch of loops and |
7e082072 DE |
1864 | it would seem to be attractive to put in some QUIT's (though I'm not really |
1865 | sure whether it can run long enough to be really important). But there | |
f8eba3c6 | 1866 | are a few calls for which it would appear to be bad news to quit |
7e082072 | 1867 | out of here: e.g., find_proc_desc in alpha-mdebug-tdep.c. (Note |
f8eba3c6 TT |
1868 | that there is C++ code below which can error(), but that probably |
1869 | doesn't affect these calls since they are looking for a known | |
1870 | variable and thus can probably assume it will never hit the C++ | |
1871 | code). */ | |
1872 | ||
d12307c1 | 1873 | struct block_symbol |
f8eba3c6 TT |
1874 | lookup_symbol_in_language (const char *name, const struct block *block, |
1875 | const domain_enum domain, enum language lang, | |
1993b719 | 1876 | struct field_of_this_result *is_a_field_of_this) |
f8eba3c6 | 1877 | { |
2f408ecb PA |
1878 | demangle_result_storage storage; |
1879 | const char *modified_name = demangle_for_lookup (name, lang, storage); | |
f8eba3c6 | 1880 | |
de63c46b PA |
1881 | return lookup_symbol_aux (modified_name, |
1882 | symbol_name_match_type::FULL, | |
1883 | block, domain, lang, | |
2f408ecb | 1884 | is_a_field_of_this); |
fba7f19c EZ |
1885 | } |
1886 | ||
cf901d3b | 1887 | /* See symtab.h. */ |
53c5240f | 1888 | |
d12307c1 | 1889 | struct block_symbol |
53c5240f | 1890 | lookup_symbol (const char *name, const struct block *block, |
1993b719 TT |
1891 | domain_enum domain, |
1892 | struct field_of_this_result *is_a_field_of_this) | |
53c5240f PA |
1893 | { |
1894 | return lookup_symbol_in_language (name, block, domain, | |
1895 | current_language->la_language, | |
2570f2b7 | 1896 | is_a_field_of_this); |
53c5240f PA |
1897 | } |
1898 | ||
cf901d3b | 1899 | /* See symtab.h. */ |
66a17cb6 | 1900 | |
de63c46b PA |
1901 | struct block_symbol |
1902 | lookup_symbol_search_name (const char *search_name, const struct block *block, | |
1903 | domain_enum domain) | |
1904 | { | |
1905 | return lookup_symbol_aux (search_name, symbol_name_match_type::SEARCH_NAME, | |
1906 | block, domain, language_asm, NULL); | |
1907 | } | |
1908 | ||
1909 | /* See symtab.h. */ | |
1910 | ||
d12307c1 | 1911 | struct block_symbol |
66a17cb6 TT |
1912 | lookup_language_this (const struct language_defn *lang, |
1913 | const struct block *block) | |
1914 | { | |
5bae7c4e | 1915 | if (lang->name_of_this () == NULL || block == NULL) |
6640a367 | 1916 | return {}; |
66a17cb6 | 1917 | |
cc485e62 DE |
1918 | if (symbol_lookup_debug > 1) |
1919 | { | |
d6bc0792 | 1920 | struct objfile *objfile = block_objfile (block); |
cc485e62 DE |
1921 | |
1922 | fprintf_unfiltered (gdb_stdlog, | |
1923 | "lookup_language_this (%s, %s (objfile %s))", | |
6f7664a9 | 1924 | lang->name (), host_address_to_string (block), |
cc485e62 DE |
1925 | objfile_debug_name (objfile)); |
1926 | } | |
1927 | ||
03de6823 | 1928 | while (block) |
66a17cb6 TT |
1929 | { |
1930 | struct symbol *sym; | |
1931 | ||
5bae7c4e | 1932 | sym = block_lookup_symbol (block, lang->name_of_this (), |
de63c46b PA |
1933 | symbol_name_match_type::SEARCH_NAME, |
1934 | VAR_DOMAIN); | |
66a17cb6 | 1935 | if (sym != NULL) |
f149aabd | 1936 | { |
cc485e62 DE |
1937 | if (symbol_lookup_debug > 1) |
1938 | { | |
1939 | fprintf_unfiltered (gdb_stdlog, " = %s (%s, block %s)\n", | |
987012b8 | 1940 | sym->print_name (), |
cc485e62 DE |
1941 | host_address_to_string (sym), |
1942 | host_address_to_string (block)); | |
1943 | } | |
d12307c1 | 1944 | return (struct block_symbol) {sym, block}; |
f149aabd | 1945 | } |
66a17cb6 | 1946 | if (BLOCK_FUNCTION (block)) |
03de6823 | 1947 | break; |
66a17cb6 TT |
1948 | block = BLOCK_SUPERBLOCK (block); |
1949 | } | |
03de6823 | 1950 | |
cc485e62 DE |
1951 | if (symbol_lookup_debug > 1) |
1952 | fprintf_unfiltered (gdb_stdlog, " = NULL\n"); | |
6640a367 | 1953 | return {}; |
66a17cb6 TT |
1954 | } |
1955 | ||
2dc3df72 TT |
1956 | /* Given TYPE, a structure/union, |
1957 | return 1 if the component named NAME from the ultimate target | |
1958 | structure/union is defined, otherwise, return 0. */ | |
1959 | ||
1960 | static int | |
1993b719 TT |
1961 | check_field (struct type *type, const char *name, |
1962 | struct field_of_this_result *is_a_field_of_this) | |
2dc3df72 TT |
1963 | { |
1964 | int i; | |
1965 | ||
1966 | /* The type may be a stub. */ | |
f168693b | 1967 | type = check_typedef (type); |
2dc3df72 | 1968 | |
1f704f76 | 1969 | for (i = type->num_fields () - 1; i >= TYPE_N_BASECLASSES (type); i--) |
2dc3df72 TT |
1970 | { |
1971 | const char *t_field_name = TYPE_FIELD_NAME (type, i); | |
1972 | ||
1973 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) | |
1993b719 TT |
1974 | { |
1975 | is_a_field_of_this->type = type; | |
ceacbf6e | 1976 | is_a_field_of_this->field = &type->field (i); |
1993b719 TT |
1977 | return 1; |
1978 | } | |
2dc3df72 TT |
1979 | } |
1980 | ||
1981 | /* C++: If it was not found as a data field, then try to return it | |
1982 | as a pointer to a method. */ | |
1983 | ||
1984 | for (i = TYPE_NFN_FIELDS (type) - 1; i >= 0; --i) | |
1985 | { | |
1986 | if (strcmp_iw (TYPE_FN_FIELDLIST_NAME (type, i), name) == 0) | |
1993b719 TT |
1987 | { |
1988 | is_a_field_of_this->type = type; | |
1989 | is_a_field_of_this->fn_field = &TYPE_FN_FIELDLIST (type, i); | |
1990 | return 1; | |
1991 | } | |
2dc3df72 TT |
1992 | } |
1993 | ||
1994 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1993b719 | 1995 | if (check_field (TYPE_BASECLASS (type, i), name, is_a_field_of_this)) |
2dc3df72 TT |
1996 | return 1; |
1997 | ||
1998 | return 0; | |
1999 | } | |
2000 | ||
53c5240f | 2001 | /* Behave like lookup_symbol except that NAME is the natural name |
7e082072 | 2002 | (e.g., demangled name) of the symbol that we're looking for. */ |
5ad1c190 | 2003 | |
d12307c1 | 2004 | static struct block_symbol |
de63c46b PA |
2005 | lookup_symbol_aux (const char *name, symbol_name_match_type match_type, |
2006 | const struct block *block, | |
94af9270 | 2007 | const domain_enum domain, enum language language, |
1993b719 | 2008 | struct field_of_this_result *is_a_field_of_this) |
fba7f19c | 2009 | { |
d12307c1 | 2010 | struct block_symbol result; |
53c5240f | 2011 | const struct language_defn *langdef; |
406bc4de | 2012 | |
cc485e62 DE |
2013 | if (symbol_lookup_debug) |
2014 | { | |
d6bc0792 TT |
2015 | struct objfile *objfile = (block == nullptr |
2016 | ? nullptr : block_objfile (block)); | |
cc485e62 DE |
2017 | |
2018 | fprintf_unfiltered (gdb_stdlog, | |
2019 | "lookup_symbol_aux (%s, %s (objfile %s), %s, %s)\n", | |
2020 | name, host_address_to_string (block), | |
2021 | objfile != NULL | |
2022 | ? objfile_debug_name (objfile) : "NULL", | |
2023 | domain_name (domain), language_str (language)); | |
2024 | } | |
2025 | ||
9a146a11 EZ |
2026 | /* Make sure we do something sensible with is_a_field_of_this, since |
2027 | the callers that set this parameter to some non-null value will | |
1993b719 TT |
2028 | certainly use it later. If we don't set it, the contents of |
2029 | is_a_field_of_this are undefined. */ | |
9a146a11 | 2030 | if (is_a_field_of_this != NULL) |
1993b719 | 2031 | memset (is_a_field_of_this, 0, sizeof (*is_a_field_of_this)); |
9a146a11 | 2032 | |
e4051eeb DC |
2033 | /* Search specified block and its superiors. Don't search |
2034 | STATIC_BLOCK or GLOBAL_BLOCK. */ | |
c906108c | 2035 | |
de63c46b | 2036 | result = lookup_local_symbol (name, match_type, block, domain, language); |
d12307c1 | 2037 | if (result.symbol != NULL) |
cc485e62 DE |
2038 | { |
2039 | if (symbol_lookup_debug) | |
2040 | { | |
2041 | fprintf_unfiltered (gdb_stdlog, "lookup_symbol_aux (...) = %s\n", | |
d12307c1 | 2042 | host_address_to_string (result.symbol)); |
cc485e62 | 2043 | } |
d12307c1 | 2044 | return result; |
cc485e62 | 2045 | } |
c906108c | 2046 | |
53c5240f | 2047 | /* If requested to do so by the caller and if appropriate for LANGUAGE, |
13387711 | 2048 | check to see if NAME is a field of `this'. */ |
53c5240f PA |
2049 | |
2050 | langdef = language_def (language); | |
5f9a71c3 | 2051 | |
6592e36f TT |
2052 | /* Don't do this check if we are searching for a struct. It will |
2053 | not be found by check_field, but will be found by other | |
2054 | means. */ | |
2055 | if (is_a_field_of_this != NULL && domain != STRUCT_DOMAIN) | |
c906108c | 2056 | { |
d12307c1 | 2057 | result = lookup_language_this (langdef, block); |
2b2d9e11 | 2058 | |
d12307c1 | 2059 | if (result.symbol) |
c906108c | 2060 | { |
d12307c1 | 2061 | struct type *t = result.symbol->type; |
9af17804 | 2062 | |
2b2d9e11 VP |
2063 | /* I'm not really sure that type of this can ever |
2064 | be typedefed; just be safe. */ | |
f168693b | 2065 | t = check_typedef (t); |
78134374 | 2066 | if (t->code () == TYPE_CODE_PTR || TYPE_IS_REFERENCE (t)) |
2b2d9e11 | 2067 | t = TYPE_TARGET_TYPE (t); |
9af17804 | 2068 | |
78134374 SM |
2069 | if (t->code () != TYPE_CODE_STRUCT |
2070 | && t->code () != TYPE_CODE_UNION) | |
9af17804 | 2071 | error (_("Internal error: `%s' is not an aggregate"), |
5bae7c4e | 2072 | langdef->name_of_this ()); |
9af17804 | 2073 | |
1993b719 | 2074 | if (check_field (t, name, is_a_field_of_this)) |
cc485e62 DE |
2075 | { |
2076 | if (symbol_lookup_debug) | |
2077 | { | |
2078 | fprintf_unfiltered (gdb_stdlog, | |
2079 | "lookup_symbol_aux (...) = NULL\n"); | |
2080 | } | |
6640a367 | 2081 | return {}; |
cc485e62 | 2082 | } |
c906108c SS |
2083 | } |
2084 | } | |
2085 | ||
53c5240f | 2086 | /* Now do whatever is appropriate for LANGUAGE to look |
774b6a14 | 2087 | up static and global variables. */ |
c906108c | 2088 | |
a78a19b1 | 2089 | result = langdef->lookup_symbol_nonlocal (name, block, domain); |
d12307c1 | 2090 | if (result.symbol != NULL) |
cc485e62 DE |
2091 | { |
2092 | if (symbol_lookup_debug) | |
2093 | { | |
2094 | fprintf_unfiltered (gdb_stdlog, "lookup_symbol_aux (...) = %s\n", | |
d12307c1 | 2095 | host_address_to_string (result.symbol)); |
cc485e62 | 2096 | } |
d12307c1 | 2097 | return result; |
cc485e62 | 2098 | } |
c906108c | 2099 | |
774b6a14 TT |
2100 | /* Now search all static file-level symbols. Not strictly correct, |
2101 | but more useful than an error. */ | |
41f62f39 | 2102 | |
d12307c1 | 2103 | result = lookup_static_symbol (name, domain); |
cc485e62 DE |
2104 | if (symbol_lookup_debug) |
2105 | { | |
2106 | fprintf_unfiltered (gdb_stdlog, "lookup_symbol_aux (...) = %s\n", | |
d12307c1 PMR |
2107 | result.symbol != NULL |
2108 | ? host_address_to_string (result.symbol) | |
2109 | : "NULL"); | |
cc485e62 | 2110 | } |
d12307c1 | 2111 | return result; |
41f62f39 JK |
2112 | } |
2113 | ||
e4051eeb | 2114 | /* Check to see if the symbol is defined in BLOCK or its superiors. |
89a9d1b1 | 2115 | Don't search STATIC_BLOCK or GLOBAL_BLOCK. */ |
8155455b | 2116 | |
d12307c1 | 2117 | static struct block_symbol |
de63c46b PA |
2118 | lookup_local_symbol (const char *name, |
2119 | symbol_name_match_type match_type, | |
2120 | const struct block *block, | |
74016e12 DE |
2121 | const domain_enum domain, |
2122 | enum language language) | |
8155455b DC |
2123 | { |
2124 | struct symbol *sym; | |
89a9d1b1 | 2125 | const struct block *static_block = block_static_block (block); |
13387711 SW |
2126 | const char *scope = block_scope (block); |
2127 | ||
e4051eeb DC |
2128 | /* Check if either no block is specified or it's a global block. */ |
2129 | ||
89a9d1b1 | 2130 | if (static_block == NULL) |
6640a367 | 2131 | return {}; |
e4051eeb | 2132 | |
89a9d1b1 | 2133 | while (block != static_block) |
f61e8913 | 2134 | { |
de63c46b | 2135 | sym = lookup_symbol_in_block (name, match_type, block, domain); |
f61e8913 | 2136 | if (sym != NULL) |
d12307c1 | 2137 | return (struct block_symbol) {sym, block}; |
edb3359d | 2138 | |
f55ee35c | 2139 | if (language == language_cplus || language == language_fortran) |
13387711 | 2140 | { |
b926417a | 2141 | struct block_symbol blocksym |
d12307c1 PMR |
2142 | = cp_lookup_symbol_imports_or_template (scope, name, block, |
2143 | domain); | |
2144 | ||
b926417a TT |
2145 | if (blocksym.symbol != NULL) |
2146 | return blocksym; | |
13387711 SW |
2147 | } |
2148 | ||
edb3359d DJ |
2149 | if (BLOCK_FUNCTION (block) != NULL && block_inlined_p (block)) |
2150 | break; | |
f61e8913 DC |
2151 | block = BLOCK_SUPERBLOCK (block); |
2152 | } | |
2153 | ||
3aee438b | 2154 | /* We've reached the end of the function without finding a result. */ |
e4051eeb | 2155 | |
6640a367 | 2156 | return {}; |
f61e8913 DC |
2157 | } |
2158 | ||
cf901d3b | 2159 | /* See symtab.h. */ |
3a40aaa0 | 2160 | |
5f9a71c3 | 2161 | struct symbol * |
de63c46b PA |
2162 | lookup_symbol_in_block (const char *name, symbol_name_match_type match_type, |
2163 | const struct block *block, | |
d1a2d36d | 2164 | const domain_enum domain) |
f61e8913 DC |
2165 | { |
2166 | struct symbol *sym; | |
f61e8913 | 2167 | |
cc485e62 DE |
2168 | if (symbol_lookup_debug > 1) |
2169 | { | |
d6bc0792 TT |
2170 | struct objfile *objfile = (block == nullptr |
2171 | ? nullptr : block_objfile (block)); | |
cc485e62 DE |
2172 | |
2173 | fprintf_unfiltered (gdb_stdlog, | |
2174 | "lookup_symbol_in_block (%s, %s (objfile %s), %s)", | |
2175 | name, host_address_to_string (block), | |
2176 | objfile_debug_name (objfile), | |
2177 | domain_name (domain)); | |
2178 | } | |
2179 | ||
de63c46b | 2180 | sym = block_lookup_symbol (block, name, match_type, domain); |
f61e8913 | 2181 | if (sym) |
8155455b | 2182 | { |
cc485e62 DE |
2183 | if (symbol_lookup_debug > 1) |
2184 | { | |
2185 | fprintf_unfiltered (gdb_stdlog, " = %s\n", | |
2186 | host_address_to_string (sym)); | |
2187 | } | |
21b556f4 | 2188 | return fixup_symbol_section (sym, NULL); |
8155455b DC |
2189 | } |
2190 | ||
cc485e62 DE |
2191 | if (symbol_lookup_debug > 1) |
2192 | fprintf_unfiltered (gdb_stdlog, " = NULL\n"); | |
8155455b DC |
2193 | return NULL; |
2194 | } | |
2195 | ||
cf901d3b | 2196 | /* See symtab.h. */ |
3a40aaa0 | 2197 | |
d12307c1 | 2198 | struct block_symbol |
efad9b6a | 2199 | lookup_global_symbol_from_objfile (struct objfile *main_objfile, |
442853af | 2200 | enum block_enum block_index, |
3a40aaa0 | 2201 | const char *name, |
21b556f4 | 2202 | const domain_enum domain) |
3a40aaa0 | 2203 | { |
442853af CB |
2204 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2205 | ||
bde09ab7 | 2206 | for (objfile *objfile : main_objfile->separate_debug_objfiles ()) |
15d123c9 | 2207 | { |
d12307c1 | 2208 | struct block_symbol result |
442853af | 2209 | = lookup_symbol_in_objfile (objfile, block_index, name, domain); |
15d123c9 | 2210 | |
442853af | 2211 | if (result.symbol != nullptr) |
d12307c1 | 2212 | return result; |
15d123c9 | 2213 | } |
56e3f43c | 2214 | |
6640a367 | 2215 | return {}; |
3a40aaa0 UW |
2216 | } |
2217 | ||
19630284 JB |
2218 | /* Check to see if the symbol is defined in one of the OBJFILE's |
2219 | symtabs. BLOCK_INDEX should be either GLOBAL_BLOCK or STATIC_BLOCK, | |
8155455b DC |
2220 | depending on whether or not we want to search global symbols or |
2221 | static symbols. */ | |
2222 | ||
d12307c1 | 2223 | static struct block_symbol |
c32e6a04 CB |
2224 | lookup_symbol_in_objfile_symtabs (struct objfile *objfile, |
2225 | enum block_enum block_index, const char *name, | |
2226 | const domain_enum domain) | |
19630284 | 2227 | { |
ba715d7f JK |
2228 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2229 | ||
cc485e62 DE |
2230 | if (symbol_lookup_debug > 1) |
2231 | { | |
2232 | fprintf_unfiltered (gdb_stdlog, | |
2233 | "lookup_symbol_in_objfile_symtabs (%s, %s, %s, %s)", | |
2234 | objfile_debug_name (objfile), | |
2235 | block_index == GLOBAL_BLOCK | |
2236 | ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
2237 | name, domain_name (domain)); | |
2238 | } | |
2239 | ||
de82891c TV |
2240 | struct block_symbol other; |
2241 | other.symbol = NULL; | |
b669c953 | 2242 | for (compunit_symtab *cust : objfile->compunits ()) |
a743abeb | 2243 | { |
43f3e411 DE |
2244 | const struct blockvector *bv; |
2245 | const struct block *block; | |
d12307c1 | 2246 | struct block_symbol result; |
43f3e411 DE |
2247 | |
2248 | bv = COMPUNIT_BLOCKVECTOR (cust); | |
a743abeb | 2249 | block = BLOCKVECTOR_BLOCK (bv, block_index); |
d12307c1 PMR |
2250 | result.symbol = block_lookup_symbol_primary (block, name, domain); |
2251 | result.block = block; | |
de82891c TV |
2252 | if (result.symbol == NULL) |
2253 | continue; | |
2254 | if (best_symbol (result.symbol, domain)) | |
a743abeb | 2255 | { |
de82891c TV |
2256 | other = result; |
2257 | break; | |
2258 | } | |
2259 | if (symbol_matches_domain (result.symbol->language (), | |
2260 | SYMBOL_DOMAIN (result.symbol), domain)) | |
2261 | { | |
2262 | struct symbol *better | |
2263 | = better_symbol (other.symbol, result.symbol, domain); | |
2264 | if (better != other.symbol) | |
cc485e62 | 2265 | { |
de82891c TV |
2266 | other.symbol = better; |
2267 | other.block = block; | |
cc485e62 | 2268 | } |
de82891c TV |
2269 | } |
2270 | } | |
d12307c1 | 2271 | |
de82891c TV |
2272 | if (other.symbol != NULL) |
2273 | { | |
2274 | if (symbol_lookup_debug > 1) | |
2275 | { | |
2276 | fprintf_unfiltered (gdb_stdlog, " = %s (block %s)\n", | |
2277 | host_address_to_string (other.symbol), | |
2278 | host_address_to_string (other.block)); | |
a743abeb | 2279 | } |
de82891c TV |
2280 | other.symbol = fixup_symbol_section (other.symbol, objfile); |
2281 | return other; | |
a743abeb | 2282 | } |
19630284 | 2283 | |
cc485e62 DE |
2284 | if (symbol_lookup_debug > 1) |
2285 | fprintf_unfiltered (gdb_stdlog, " = NULL\n"); | |
6640a367 | 2286 | return {}; |
19630284 JB |
2287 | } |
2288 | ||
74016e12 | 2289 | /* Wrapper around lookup_symbol_in_objfile_symtabs for search_symbols. |
422d65e7 | 2290 | Look up LINKAGE_NAME in DOMAIN in the global and static blocks of OBJFILE |
01465b56 DE |
2291 | and all associated separate debug objfiles. |
2292 | ||
2293 | Normally we only look in OBJFILE, and not any separate debug objfiles | |
2294 | because the outer loop will cause them to be searched too. This case is | |
2295 | different. Here we're called from search_symbols where it will only | |
6471e7d2 | 2296 | call us for the objfile that contains a matching minsym. */ |
422d65e7 | 2297 | |
d12307c1 | 2298 | static struct block_symbol |
422d65e7 DE |
2299 | lookup_symbol_in_objfile_from_linkage_name (struct objfile *objfile, |
2300 | const char *linkage_name, | |
2301 | domain_enum domain) | |
2302 | { | |
2303 | enum language lang = current_language->la_language; | |
e9ad22ee | 2304 | struct objfile *main_objfile; |
422d65e7 | 2305 | |
2f408ecb PA |
2306 | demangle_result_storage storage; |
2307 | const char *modified_name = demangle_for_lookup (linkage_name, lang, storage); | |
2308 | ||
422d65e7 DE |
2309 | if (objfile->separate_debug_objfile_backlink) |
2310 | main_objfile = objfile->separate_debug_objfile_backlink; | |
2311 | else | |
2312 | main_objfile = objfile; | |
2313 | ||
bde09ab7 | 2314 | for (::objfile *cur_objfile : main_objfile->separate_debug_objfiles ()) |
422d65e7 | 2315 | { |
d12307c1 PMR |
2316 | struct block_symbol result; |
2317 | ||
2318 | result = lookup_symbol_in_objfile_symtabs (cur_objfile, GLOBAL_BLOCK, | |
2319 | modified_name, domain); | |
2320 | if (result.symbol == NULL) | |
2321 | result = lookup_symbol_in_objfile_symtabs (cur_objfile, STATIC_BLOCK, | |
2322 | modified_name, domain); | |
2323 | if (result.symbol != NULL) | |
2f408ecb | 2324 | return result; |
422d65e7 DE |
2325 | } |
2326 | ||
6640a367 | 2327 | return {}; |
422d65e7 DE |
2328 | } |
2329 | ||
08c23b0d TT |
2330 | /* A helper function that throws an exception when a symbol was found |
2331 | in a psymtab but not in a symtab. */ | |
2332 | ||
2333 | static void ATTRIBUTE_NORETURN | |
ddbcedf5 | 2334 | error_in_psymtab_expansion (enum block_enum block_index, const char *name, |
43f3e411 | 2335 | struct compunit_symtab *cust) |
08c23b0d TT |
2336 | { |
2337 | error (_("\ | |
2338 | Internal: %s symbol `%s' found in %s psymtab but not in symtab.\n\ | |
2339 | %s may be an inlined function, or may be a template function\n \ | |
2340 | (if a template, try specifying an instantiation: %s<type>)."), | |
f88cb4b6 | 2341 | block_index == GLOBAL_BLOCK ? "global" : "static", |
43f3e411 DE |
2342 | name, |
2343 | symtab_to_filename_for_display (compunit_primary_filetab (cust)), | |
2344 | name, name); | |
08c23b0d TT |
2345 | } |
2346 | ||
74016e12 DE |
2347 | /* A helper function for various lookup routines that interfaces with |
2348 | the "quick" symbol table functions. */ | |
8155455b | 2349 | |
d12307c1 | 2350 | static struct block_symbol |
ddbcedf5 CB |
2351 | lookup_symbol_via_quick_fns (struct objfile *objfile, |
2352 | enum block_enum block_index, const char *name, | |
2353 | const domain_enum domain) | |
8155455b | 2354 | { |
43f3e411 | 2355 | struct compunit_symtab *cust; |
346d1dfe | 2356 | const struct blockvector *bv; |
8155455b | 2357 | const struct block *block; |
d12307c1 | 2358 | struct block_symbol result; |
8155455b | 2359 | |
ccefe4c4 | 2360 | if (!objfile->sf) |
6640a367 | 2361 | return {}; |
cc485e62 DE |
2362 | |
2363 | if (symbol_lookup_debug > 1) | |
2364 | { | |
2365 | fprintf_unfiltered (gdb_stdlog, | |
2366 | "lookup_symbol_via_quick_fns (%s, %s, %s, %s)\n", | |
2367 | objfile_debug_name (objfile), | |
2368 | block_index == GLOBAL_BLOCK | |
2369 | ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
2370 | name, domain_name (domain)); | |
2371 | } | |
2372 | ||
43f3e411 DE |
2373 | cust = objfile->sf->qf->lookup_symbol (objfile, block_index, name, domain); |
2374 | if (cust == NULL) | |
cc485e62 DE |
2375 | { |
2376 | if (symbol_lookup_debug > 1) | |
2377 | { | |
2378 | fprintf_unfiltered (gdb_stdlog, | |
2379 | "lookup_symbol_via_quick_fns (...) = NULL\n"); | |
2380 | } | |
6640a367 | 2381 | return {}; |
cc485e62 | 2382 | } |
8155455b | 2383 | |
43f3e411 | 2384 | bv = COMPUNIT_BLOCKVECTOR (cust); |
f88cb4b6 | 2385 | block = BLOCKVECTOR_BLOCK (bv, block_index); |
de63c46b PA |
2386 | result.symbol = block_lookup_symbol (block, name, |
2387 | symbol_name_match_type::FULL, domain); | |
d12307c1 | 2388 | if (result.symbol == NULL) |
43f3e411 | 2389 | error_in_psymtab_expansion (block_index, name, cust); |
cc485e62 DE |
2390 | |
2391 | if (symbol_lookup_debug > 1) | |
2392 | { | |
2393 | fprintf_unfiltered (gdb_stdlog, | |
2394 | "lookup_symbol_via_quick_fns (...) = %s (block %s)\n", | |
d12307c1 | 2395 | host_address_to_string (result.symbol), |
cc485e62 DE |
2396 | host_address_to_string (block)); |
2397 | } | |
2398 | ||
d12307c1 PMR |
2399 | result.symbol = fixup_symbol_section (result.symbol, objfile); |
2400 | result.block = block; | |
2401 | return result; | |
8155455b DC |
2402 | } |
2403 | ||
a78a19b1 | 2404 | /* See language.h. */ |
5f9a71c3 | 2405 | |
d12307c1 | 2406 | struct block_symbol |
a78a19b1 AB |
2407 | language_defn::lookup_symbol_nonlocal (const char *name, |
2408 | const struct block *block, | |
2409 | const domain_enum domain) const | |
5f9a71c3 | 2410 | { |
d12307c1 | 2411 | struct block_symbol result; |
5f9a71c3 | 2412 | |
d9060ba6 DE |
2413 | /* NOTE: dje/2014-10-26: The lookup in all objfiles search could skip |
2414 | the current objfile. Searching the current objfile first is useful | |
2415 | for both matching user expectations as well as performance. */ | |
2416 | ||
d12307c1 PMR |
2417 | result = lookup_symbol_in_static_block (name, block, domain); |
2418 | if (result.symbol != NULL) | |
2419 | return result; | |
5f9a71c3 | 2420 | |
1994afbf DE |
2421 | /* If we didn't find a definition for a builtin type in the static block, |
2422 | search for it now. This is actually the right thing to do and can be | |
2423 | a massive performance win. E.g., when debugging a program with lots of | |
2424 | shared libraries we could search all of them only to find out the | |
2425 | builtin type isn't defined in any of them. This is common for types | |
2426 | like "void". */ | |
2427 | if (domain == VAR_DOMAIN) | |
2428 | { | |
2429 | struct gdbarch *gdbarch; | |
2430 | ||
2431 | if (block == NULL) | |
2432 | gdbarch = target_gdbarch (); | |
2433 | else | |
2434 | gdbarch = block_gdbarch (block); | |
a78a19b1 | 2435 | result.symbol = language_lookup_primitive_type_as_symbol (this, |
d12307c1 PMR |
2436 | gdbarch, name); |
2437 | result.block = NULL; | |
2438 | if (result.symbol != NULL) | |
2439 | return result; | |
1994afbf DE |
2440 | } |
2441 | ||
08724ab7 | 2442 | return lookup_global_symbol (name, block, domain); |
5f9a71c3 DC |
2443 | } |
2444 | ||
cf901d3b | 2445 | /* See symtab.h. */ |
5f9a71c3 | 2446 | |
d12307c1 | 2447 | struct block_symbol |
24d864bb DE |
2448 | lookup_symbol_in_static_block (const char *name, |
2449 | const struct block *block, | |
2450 | const domain_enum domain) | |
5f9a71c3 DC |
2451 | { |
2452 | const struct block *static_block = block_static_block (block); | |
cc485e62 | 2453 | struct symbol *sym; |
5f9a71c3 | 2454 | |
cc485e62 | 2455 | if (static_block == NULL) |
6640a367 | 2456 | return {}; |
cc485e62 DE |
2457 | |
2458 | if (symbol_lookup_debug) | |
2459 | { | |
d6bc0792 TT |
2460 | struct objfile *objfile = (block == nullptr |
2461 | ? nullptr : block_objfile (block)); | |
cc485e62 DE |
2462 | |
2463 | fprintf_unfiltered (gdb_stdlog, | |
2464 | "lookup_symbol_in_static_block (%s, %s (objfile %s)," | |
2465 | " %s)\n", | |
2466 | name, | |
2467 | host_address_to_string (block), | |
2468 | objfile_debug_name (objfile), | |
2469 | domain_name (domain)); | |
2470 | } | |
2471 | ||
de63c46b PA |
2472 | sym = lookup_symbol_in_block (name, |
2473 | symbol_name_match_type::FULL, | |
2474 | static_block, domain); | |
cc485e62 DE |
2475 | if (symbol_lookup_debug) |
2476 | { | |
2477 | fprintf_unfiltered (gdb_stdlog, | |
2478 | "lookup_symbol_in_static_block (...) = %s\n", | |
2479 | sym != NULL ? host_address_to_string (sym) : "NULL"); | |
2480 | } | |
d12307c1 | 2481 | return (struct block_symbol) {sym, static_block}; |
5f9a71c3 DC |
2482 | } |
2483 | ||
af3768e9 DE |
2484 | /* Perform the standard symbol lookup of NAME in OBJFILE: |
2485 | 1) First search expanded symtabs, and if not found | |
2486 | 2) Search the "quick" symtabs (partial or .gdb_index). | |
2487 | BLOCK_INDEX is one of GLOBAL_BLOCK or STATIC_BLOCK. */ | |
2488 | ||
d12307c1 | 2489 | static struct block_symbol |
c32e6a04 | 2490 | lookup_symbol_in_objfile (struct objfile *objfile, enum block_enum block_index, |
af3768e9 DE |
2491 | const char *name, const domain_enum domain) |
2492 | { | |
d12307c1 | 2493 | struct block_symbol result; |
af3768e9 | 2494 | |
c32e6a04 CB |
2495 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2496 | ||
cc485e62 DE |
2497 | if (symbol_lookup_debug) |
2498 | { | |
2499 | fprintf_unfiltered (gdb_stdlog, | |
2500 | "lookup_symbol_in_objfile (%s, %s, %s, %s)\n", | |
2501 | objfile_debug_name (objfile), | |
2502 | block_index == GLOBAL_BLOCK | |
2503 | ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
2504 | name, domain_name (domain)); | |
2505 | } | |
2506 | ||
af3768e9 DE |
2507 | result = lookup_symbol_in_objfile_symtabs (objfile, block_index, |
2508 | name, domain); | |
d12307c1 | 2509 | if (result.symbol != NULL) |
af3768e9 | 2510 | { |
cc485e62 DE |
2511 | if (symbol_lookup_debug) |
2512 | { | |
2513 | fprintf_unfiltered (gdb_stdlog, | |
2514 | "lookup_symbol_in_objfile (...) = %s" | |
2515 | " (in symtabs)\n", | |
d12307c1 | 2516 | host_address_to_string (result.symbol)); |
cc485e62 DE |
2517 | } |
2518 | return result; | |
af3768e9 DE |
2519 | } |
2520 | ||
cc485e62 DE |
2521 | result = lookup_symbol_via_quick_fns (objfile, block_index, |
2522 | name, domain); | |
2523 | if (symbol_lookup_debug) | |
2524 | { | |
2525 | fprintf_unfiltered (gdb_stdlog, | |
2526 | "lookup_symbol_in_objfile (...) = %s%s\n", | |
d12307c1 PMR |
2527 | result.symbol != NULL |
2528 | ? host_address_to_string (result.symbol) | |
cc485e62 | 2529 | : "NULL", |
d12307c1 | 2530 | result.symbol != NULL ? " (via quick fns)" : ""); |
cc485e62 | 2531 | } |
af3768e9 DE |
2532 | return result; |
2533 | } | |
2534 | ||
d3214198 TV |
2535 | /* Find the language for partial symbol with NAME. */ |
2536 | ||
2537 | static enum language | |
2538 | find_quick_global_symbol_language (const char *name, const domain_enum domain) | |
2539 | { | |
2540 | for (objfile *objfile : current_program_space->objfiles ()) | |
2541 | { | |
2542 | if (objfile->sf && objfile->sf->qf | |
2543 | && objfile->sf->qf->lookup_global_symbol_language) | |
2544 | continue; | |
2545 | return language_unknown; | |
2546 | } | |
2547 | ||
2548 | for (objfile *objfile : current_program_space->objfiles ()) | |
2549 | { | |
2550 | bool symbol_found_p; | |
2551 | enum language lang | |
2552 | = objfile->sf->qf->lookup_global_symbol_language (objfile, name, domain, | |
2553 | &symbol_found_p); | |
2554 | if (!symbol_found_p) | |
2555 | continue; | |
2556 | return lang; | |
2557 | } | |
2558 | ||
2559 | return language_unknown; | |
2560 | } | |
2561 | ||
19630284 JB |
2562 | /* Private data to be used with lookup_symbol_global_iterator_cb. */ |
2563 | ||
9aa55206 | 2564 | struct global_or_static_sym_lookup_data |
19630284 JB |
2565 | { |
2566 | /* The name of the symbol we are searching for. */ | |
2567 | const char *name; | |
2568 | ||
2569 | /* The domain to use for our search. */ | |
2570 | domain_enum domain; | |
2571 | ||
9aa55206 CB |
2572 | /* The block index in which to search. */ |
2573 | enum block_enum block_index; | |
2574 | ||
19630284 | 2575 | /* The field where the callback should store the symbol if found. |
d12307c1 PMR |
2576 | It should be initialized to {NULL, NULL} before the search is started. */ |
2577 | struct block_symbol result; | |
19630284 JB |
2578 | }; |
2579 | ||
2580 | /* A callback function for gdbarch_iterate_over_objfiles_in_search_order. | |
9aa55206 CB |
2581 | It searches by name for a symbol in the block given by BLOCK_INDEX of the |
2582 | given OBJFILE. The arguments for the search are passed via CB_DATA, which | |
2583 | in reality is a pointer to struct global_or_static_sym_lookup_data. */ | |
19630284 JB |
2584 | |
2585 | static int | |
9aa55206 CB |
2586 | lookup_symbol_global_or_static_iterator_cb (struct objfile *objfile, |
2587 | void *cb_data) | |
19630284 | 2588 | { |
9aa55206 CB |
2589 | struct global_or_static_sym_lookup_data *data = |
2590 | (struct global_or_static_sym_lookup_data *) cb_data; | |
19630284 | 2591 | |
d12307c1 PMR |
2592 | gdb_assert (data->result.symbol == NULL |
2593 | && data->result.block == NULL); | |
19630284 | 2594 | |
9aa55206 | 2595 | data->result = lookup_symbol_in_objfile (objfile, data->block_index, |
af3768e9 | 2596 | data->name, data->domain); |
19630284 JB |
2597 | |
2598 | /* If we found a match, tell the iterator to stop. Otherwise, | |
2599 | keep going. */ | |
d12307c1 | 2600 | return (data->result.symbol != NULL); |
19630284 JB |
2601 | } |
2602 | ||
9aa55206 CB |
2603 | /* This function contains the common code of lookup_{global,static}_symbol. |
2604 | OBJFILE is only used if BLOCK_INDEX is GLOBAL_SCOPE, in which case it is | |
2605 | the objfile to start the lookup in. */ | |
5f9a71c3 | 2606 | |
9aa55206 CB |
2607 | static struct block_symbol |
2608 | lookup_global_or_static_symbol (const char *name, | |
2609 | enum block_enum block_index, | |
2610 | struct objfile *objfile, | |
2611 | const domain_enum domain) | |
5f9a71c3 | 2612 | { |
f57d2163 | 2613 | struct symbol_cache *cache = get_symbol_cache (current_program_space); |
d12307c1 | 2614 | struct block_symbol result; |
9aa55206 | 2615 | struct global_or_static_sym_lookup_data lookup_data; |
f57d2163 DE |
2616 | struct block_symbol_cache *bsc; |
2617 | struct symbol_cache_slot *slot; | |
b2fb95e0 | 2618 | |
9aa55206 CB |
2619 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2620 | gdb_assert (objfile == nullptr || block_index == GLOBAL_BLOCK); | |
f57d2163 DE |
2621 | |
2622 | /* First see if we can find the symbol in the cache. | |
2623 | This works because we use the current objfile to qualify the lookup. */ | |
9aa55206 | 2624 | result = symbol_cache_lookup (cache, objfile, block_index, name, domain, |
d12307c1 PMR |
2625 | &bsc, &slot); |
2626 | if (result.symbol != NULL) | |
f57d2163 | 2627 | { |
d12307c1 | 2628 | if (SYMBOL_LOOKUP_FAILED_P (result)) |
6640a367 | 2629 | return {}; |
d12307c1 | 2630 | return result; |
f57d2163 DE |
2631 | } |
2632 | ||
626ca2c0 | 2633 | /* Do a global search (of global blocks, heh). */ |
d12307c1 | 2634 | if (result.symbol == NULL) |
f57d2163 DE |
2635 | { |
2636 | memset (&lookup_data, 0, sizeof (lookup_data)); | |
2637 | lookup_data.name = name; | |
9aa55206 | 2638 | lookup_data.block_index = block_index; |
f57d2163 DE |
2639 | lookup_data.domain = domain; |
2640 | gdbarch_iterate_over_objfiles_in_search_order | |
08feed99 | 2641 | (objfile != NULL ? objfile->arch () : target_gdbarch (), |
9aa55206 | 2642 | lookup_symbol_global_or_static_iterator_cb, &lookup_data, objfile); |
d12307c1 | 2643 | result = lookup_data.result; |
f57d2163 | 2644 | } |
6a3ca067 | 2645 | |
d12307c1 PMR |
2646 | if (result.symbol != NULL) |
2647 | symbol_cache_mark_found (bsc, slot, objfile, result.symbol, result.block); | |
f57d2163 DE |
2648 | else |
2649 | symbol_cache_mark_not_found (bsc, slot, objfile, name, domain); | |
2650 | ||
d12307c1 | 2651 | return result; |
5f9a71c3 DC |
2652 | } |
2653 | ||
9aa55206 CB |
2654 | /* See symtab.h. */ |
2655 | ||
2656 | struct block_symbol | |
2657 | lookup_static_symbol (const char *name, const domain_enum domain) | |
2658 | { | |
2659 | return lookup_global_or_static_symbol (name, STATIC_BLOCK, nullptr, domain); | |
2660 | } | |
2661 | ||
2662 | /* See symtab.h. */ | |
2663 | ||
2664 | struct block_symbol | |
2665 | lookup_global_symbol (const char *name, | |
2666 | const struct block *block, | |
2667 | const domain_enum domain) | |
2668 | { | |
d3d32391 AB |
2669 | /* If a block was passed in, we want to search the corresponding |
2670 | global block first. This yields "more expected" behavior, and is | |
2671 | needed to support 'FILENAME'::VARIABLE lookups. */ | |
2672 | const struct block *global_block = block_global_block (block); | |
70bc38f5 | 2673 | symbol *sym = NULL; |
d3d32391 AB |
2674 | if (global_block != nullptr) |
2675 | { | |
70bc38f5 TV |
2676 | sym = lookup_symbol_in_block (name, |
2677 | symbol_name_match_type::FULL, | |
2678 | global_block, domain); | |
2679 | if (sym != NULL && best_symbol (sym, domain)) | |
d3d32391 AB |
2680 | return { sym, global_block }; |
2681 | } | |
2682 | ||
d6bc0792 TT |
2683 | struct objfile *objfile = nullptr; |
2684 | if (block != nullptr) | |
2685 | { | |
2686 | objfile = block_objfile (block); | |
2687 | if (objfile->separate_debug_objfile_backlink != nullptr) | |
2688 | objfile = objfile->separate_debug_objfile_backlink; | |
2689 | } | |
2690 | ||
70bc38f5 TV |
2691 | block_symbol bs |
2692 | = lookup_global_or_static_symbol (name, GLOBAL_BLOCK, objfile, domain); | |
2693 | if (better_symbol (sym, bs.symbol, domain) == sym) | |
2694 | return { sym, global_block }; | |
2695 | else | |
2696 | return bs; | |
9aa55206 CB |
2697 | } |
2698 | ||
ececd218 | 2699 | bool |
4186eb54 KS |
2700 | symbol_matches_domain (enum language symbol_language, |
2701 | domain_enum symbol_domain, | |
2702 | domain_enum domain) | |
2703 | { | |
2704 | /* For C++ "struct foo { ... }" also defines a typedef for "foo". | |
4186eb54 KS |
2705 | Similarly, any Ada type declaration implicitly defines a typedef. */ |
2706 | if (symbol_language == language_cplus | |
2707 | || symbol_language == language_d | |
65547233 TT |
2708 | || symbol_language == language_ada |
2709 | || symbol_language == language_rust) | |
4186eb54 KS |
2710 | { |
2711 | if ((domain == VAR_DOMAIN || domain == STRUCT_DOMAIN) | |
2712 | && symbol_domain == STRUCT_DOMAIN) | |
ececd218 | 2713 | return true; |
4186eb54 KS |
2714 | } |
2715 | /* For all other languages, strict match is required. */ | |
2716 | return (symbol_domain == domain); | |
2717 | } | |
2718 | ||
cf901d3b | 2719 | /* See symtab.h. */ |
c906108c | 2720 | |
ccefe4c4 TT |
2721 | struct type * |
2722 | lookup_transparent_type (const char *name) | |
c906108c | 2723 | { |
54f4ca46 | 2724 | return current_language->lookup_transparent_type (name); |
ccefe4c4 | 2725 | } |
9af17804 | 2726 | |
ccefe4c4 TT |
2727 | /* A helper for basic_lookup_transparent_type that interfaces with the |
2728 | "quick" symbol table functions. */ | |
357e46e7 | 2729 | |
ccefe4c4 | 2730 | static struct type * |
ddbcedf5 CB |
2731 | basic_lookup_transparent_type_quick (struct objfile *objfile, |
2732 | enum block_enum block_index, | |
ccefe4c4 TT |
2733 | const char *name) |
2734 | { | |
43f3e411 | 2735 | struct compunit_symtab *cust; |
346d1dfe | 2736 | const struct blockvector *bv; |
582942f4 | 2737 | const struct block *block; |
ccefe4c4 | 2738 | struct symbol *sym; |
c906108c | 2739 | |
ccefe4c4 TT |
2740 | if (!objfile->sf) |
2741 | return NULL; | |
43f3e411 DE |
2742 | cust = objfile->sf->qf->lookup_symbol (objfile, block_index, name, |
2743 | STRUCT_DOMAIN); | |
2744 | if (cust == NULL) | |
ccefe4c4 | 2745 | return NULL; |
c906108c | 2746 | |
43f3e411 | 2747 | bv = COMPUNIT_BLOCKVECTOR (cust); |
f88cb4b6 | 2748 | block = BLOCKVECTOR_BLOCK (bv, block_index); |
b2e2f908 DE |
2749 | sym = block_find_symbol (block, name, STRUCT_DOMAIN, |
2750 | block_find_non_opaque_type, NULL); | |
2751 | if (sym == NULL) | |
43f3e411 | 2752 | error_in_psymtab_expansion (block_index, name, cust); |
b2e2f908 DE |
2753 | gdb_assert (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))); |
2754 | return SYMBOL_TYPE (sym); | |
2755 | } | |
08c23b0d | 2756 | |
b2e2f908 DE |
2757 | /* Subroutine of basic_lookup_transparent_type to simplify it. |
2758 | Look up the non-opaque definition of NAME in BLOCK_INDEX of OBJFILE. | |
2759 | BLOCK_INDEX is either GLOBAL_BLOCK or STATIC_BLOCK. */ | |
2760 | ||
2761 | static struct type * | |
ddbcedf5 CB |
2762 | basic_lookup_transparent_type_1 (struct objfile *objfile, |
2763 | enum block_enum block_index, | |
b2e2f908 DE |
2764 | const char *name) |
2765 | { | |
b2e2f908 DE |
2766 | const struct blockvector *bv; |
2767 | const struct block *block; | |
2768 | const struct symbol *sym; | |
2769 | ||
b669c953 | 2770 | for (compunit_symtab *cust : objfile->compunits ()) |
b2e2f908 DE |
2771 | { |
2772 | bv = COMPUNIT_BLOCKVECTOR (cust); | |
2773 | block = BLOCKVECTOR_BLOCK (bv, block_index); | |
2774 | sym = block_find_symbol (block, name, STRUCT_DOMAIN, | |
2775 | block_find_non_opaque_type, NULL); | |
2776 | if (sym != NULL) | |
2777 | { | |
2778 | gdb_assert (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))); | |
2779 | return SYMBOL_TYPE (sym); | |
2780 | } | |
2781 | } | |
c906108c | 2782 | |
ccefe4c4 | 2783 | return NULL; |
b368761e | 2784 | } |
c906108c | 2785 | |
b368761e DC |
2786 | /* The standard implementation of lookup_transparent_type. This code |
2787 | was modeled on lookup_symbol -- the parts not relevant to looking | |
2788 | up types were just left out. In particular it's assumed here that | |
cf901d3b | 2789 | types are available in STRUCT_DOMAIN and only in file-static or |
b368761e | 2790 | global blocks. */ |
c906108c SS |
2791 | |
2792 | struct type * | |
b368761e | 2793 | basic_lookup_transparent_type (const char *name) |
c906108c | 2794 | { |
ccefe4c4 | 2795 | struct type *t; |
c906108c SS |
2796 | |
2797 | /* Now search all the global symbols. Do the symtab's first, then | |
c378eb4e | 2798 | check the psymtab's. If a psymtab indicates the existence |
c906108c SS |
2799 | of the desired name as a global, then do psymtab-to-symtab |
2800 | conversion on the fly and return the found symbol. */ | |
c5aa993b | 2801 | |
2030c079 | 2802 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2803 | { |
2804 | t = basic_lookup_transparent_type_1 (objfile, GLOBAL_BLOCK, name); | |
2805 | if (t) | |
2806 | return t; | |
2807 | } | |
c906108c | 2808 | |
2030c079 | 2809 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2810 | { |
2811 | t = basic_lookup_transparent_type_quick (objfile, GLOBAL_BLOCK, name); | |
2812 | if (t) | |
2813 | return t; | |
2814 | } | |
c906108c SS |
2815 | |
2816 | /* Now search the static file-level symbols. | |
2817 | Not strictly correct, but more useful than an error. | |
2818 | Do the symtab's first, then | |
c378eb4e | 2819 | check the psymtab's. If a psymtab indicates the existence |
c906108c | 2820 | of the desired name as a file-level static, then do psymtab-to-symtab |
c378eb4e | 2821 | conversion on the fly and return the found symbol. */ |
c906108c | 2822 | |
2030c079 | 2823 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2824 | { |
2825 | t = basic_lookup_transparent_type_1 (objfile, STATIC_BLOCK, name); | |
2826 | if (t) | |
2827 | return t; | |
2828 | } | |
c906108c | 2829 | |
2030c079 | 2830 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2831 | { |
2832 | t = basic_lookup_transparent_type_quick (objfile, STATIC_BLOCK, name); | |
2833 | if (t) | |
2834 | return t; | |
2835 | } | |
ccefe4c4 | 2836 | |
c906108c SS |
2837 | return (struct type *) 0; |
2838 | } | |
2839 | ||
6969f124 | 2840 | /* See symtab.h. */ |
f8eba3c6 | 2841 | |
6969f124 | 2842 | bool |
b5ec771e PA |
2843 | iterate_over_symbols (const struct block *block, |
2844 | const lookup_name_info &name, | |
f8eba3c6 | 2845 | const domain_enum domain, |
14bc53a8 | 2846 | gdb::function_view<symbol_found_callback_ftype> callback) |
f8eba3c6 | 2847 | { |
4eeaa230 DE |
2848 | struct block_iterator iter; |
2849 | struct symbol *sym; | |
f8eba3c6 | 2850 | |
358d6ab3 | 2851 | ALL_BLOCK_SYMBOLS_WITH_NAME (block, name, iter, sym) |
4eeaa230 | 2852 | { |
c1b5c1eb | 2853 | if (symbol_matches_domain (sym->language (), SYMBOL_DOMAIN (sym), domain)) |
f8eba3c6 | 2854 | { |
7e41c8db KS |
2855 | struct block_symbol block_sym = {sym, block}; |
2856 | ||
2857 | if (!callback (&block_sym)) | |
6969f124 | 2858 | return false; |
f8eba3c6 | 2859 | } |
f8eba3c6 | 2860 | } |
6969f124 | 2861 | return true; |
f8eba3c6 TT |
2862 | } |
2863 | ||
6a3dbf1b TT |
2864 | /* See symtab.h. */ |
2865 | ||
2866 | bool | |
2867 | iterate_over_symbols_terminated | |
2868 | (const struct block *block, | |
2869 | const lookup_name_info &name, | |
2870 | const domain_enum domain, | |
2871 | gdb::function_view<symbol_found_callback_ftype> callback) | |
2872 | { | |
2873 | if (!iterate_over_symbols (block, name, domain, callback)) | |
2874 | return false; | |
2875 | struct block_symbol block_sym = {nullptr, block}; | |
2876 | return callback (&block_sym); | |
2877 | } | |
2878 | ||
43f3e411 DE |
2879 | /* Find the compunit symtab associated with PC and SECTION. |
2880 | This will read in debug info as necessary. */ | |
c906108c | 2881 | |
43f3e411 DE |
2882 | struct compunit_symtab * |
2883 | find_pc_sect_compunit_symtab (CORE_ADDR pc, struct obj_section *section) | |
c906108c | 2884 | { |
43f3e411 | 2885 | struct compunit_symtab *best_cust = NULL; |
61eb46a4 | 2886 | CORE_ADDR best_cust_range = 0; |
77e371c0 | 2887 | struct bound_minimal_symbol msymbol; |
8a48e967 DJ |
2888 | |
2889 | /* If we know that this is not a text address, return failure. This is | |
2890 | necessary because we loop based on the block's high and low code | |
2891 | addresses, which do not include the data ranges, and because | |
2892 | we call find_pc_sect_psymtab which has a similar restriction based | |
2893 | on the partial_symtab's texthigh and textlow. */ | |
77e371c0 | 2894 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); |
1ed9f74e | 2895 | if (msymbol.minsym && msymbol.minsym->data_p ()) |
8a48e967 | 2896 | return NULL; |
c906108c SS |
2897 | |
2898 | /* Search all symtabs for the one whose file contains our address, and which | |
2899 | is the smallest of all the ones containing the address. This is designed | |
2900 | to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000 | |
2901 | and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from | |
2902 | 0x1000-0x4000, but for address 0x2345 we want to return symtab b. | |
2903 | ||
2904 | This happens for native ecoff format, where code from included files | |
c378eb4e | 2905 | gets its own symtab. The symtab for the included file should have |
c906108c SS |
2906 | been read in already via the dependency mechanism. |
2907 | It might be swifter to create several symtabs with the same name | |
2908 | like xcoff does (I'm not sure). | |
2909 | ||
2910 | It also happens for objfiles that have their functions reordered. | |
2911 | For these, the symtab we are looking for is not necessarily read in. */ | |
2912 | ||
2030c079 | 2913 | for (objfile *obj_file : current_program_space->objfiles ()) |
d8aeb77f | 2914 | { |
b669c953 | 2915 | for (compunit_symtab *cust : obj_file->compunits ()) |
d8aeb77f | 2916 | { |
61eb46a4 TV |
2917 | const struct blockvector *bv = COMPUNIT_BLOCKVECTOR (cust); |
2918 | const struct block *global_block | |
2919 | = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
2920 | CORE_ADDR start = BLOCK_START (global_block); | |
2921 | CORE_ADDR end = BLOCK_END (global_block); | |
2922 | bool in_range_p = start <= pc && pc < end; | |
2923 | if (!in_range_p) | |
2924 | continue; | |
43f3e411 | 2925 | |
61eb46a4 TV |
2926 | CORE_ADDR range = end - start; |
2927 | if (best_cust != nullptr | |
2928 | && range >= best_cust_range) | |
2929 | /* Cust doesn't have a smaller range than best_cust, skip it. */ | |
2930 | continue; | |
2931 | ||
2932 | /* For an objfile that has its functions reordered, | |
2933 | find_pc_psymtab will find the proper partial symbol table | |
2934 | and we simply return its corresponding symtab. */ | |
2935 | /* In order to better support objfiles that contain both | |
2936 | stabs and coff debugging info, we continue on if a psymtab | |
2937 | can't be found. */ | |
2938 | if ((obj_file->flags & OBJF_REORDERED) && obj_file->sf) | |
2939 | { | |
2940 | struct compunit_symtab *result; | |
2941 | ||
2942 | result | |
2943 | = obj_file->sf->qf->find_pc_sect_compunit_symtab (obj_file, | |
2944 | msymbol, | |
2945 | pc, | |
2946 | section, | |
2947 | 0); | |
2948 | if (result != NULL) | |
2949 | return result; | |
2950 | } | |
c906108c | 2951 | |
61eb46a4 | 2952 | if (section != 0) |
d8aeb77f | 2953 | { |
61eb46a4 TV |
2954 | struct symbol *sym = NULL; |
2955 | struct block_iterator iter; | |
2956 | ||
bd24c5d6 TV |
2957 | for (int b_index = GLOBAL_BLOCK; |
2958 | b_index <= STATIC_BLOCK && sym == NULL; | |
2959 | ++b_index) | |
d8aeb77f | 2960 | { |
bd24c5d6 TV |
2961 | const struct block *b = BLOCKVECTOR_BLOCK (bv, b_index); |
2962 | ALL_BLOCK_SYMBOLS (b, iter, sym) | |
2963 | { | |
2964 | fixup_symbol_section (sym, obj_file); | |
2965 | if (matching_obj_sections (SYMBOL_OBJ_SECTION (obj_file, | |
2966 | sym), | |
2967 | section)) | |
2968 | break; | |
2969 | } | |
d8aeb77f | 2970 | } |
61eb46a4 TV |
2971 | if (sym == NULL) |
2972 | continue; /* No symbol in this symtab matches | |
d8aeb77f | 2973 | section. */ |
d8aeb77f | 2974 | } |
61eb46a4 TV |
2975 | |
2976 | /* Cust is best found sofar, save it. */ | |
2977 | best_cust = cust; | |
2978 | best_cust_range = range; | |
d8aeb77f TT |
2979 | } |
2980 | } | |
c906108c | 2981 | |
43f3e411 DE |
2982 | if (best_cust != NULL) |
2983 | return best_cust; | |
c906108c | 2984 | |
072cabfe DE |
2985 | /* Not found in symtabs, search the "quick" symtabs (e.g. psymtabs). */ |
2986 | ||
2030c079 | 2987 | for (objfile *objf : current_program_space->objfiles ()) |
aed57c53 TT |
2988 | { |
2989 | struct compunit_symtab *result; | |
2990 | ||
2991 | if (!objf->sf) | |
2992 | continue; | |
2993 | result = objf->sf->qf->find_pc_sect_compunit_symtab (objf, | |
2994 | msymbol, | |
2995 | pc, section, | |
2996 | 1); | |
2997 | if (result != NULL) | |
2998 | return result; | |
2999 | } | |
ccefe4c4 TT |
3000 | |
3001 | return NULL; | |
c906108c SS |
3002 | } |
3003 | ||
43f3e411 DE |
3004 | /* Find the compunit symtab associated with PC. |
3005 | This will read in debug info as necessary. | |
3006 | Backward compatibility, no section. */ | |
c906108c | 3007 | |
43f3e411 DE |
3008 | struct compunit_symtab * |
3009 | find_pc_compunit_symtab (CORE_ADDR pc) | |
c906108c | 3010 | { |
43f3e411 | 3011 | return find_pc_sect_compunit_symtab (pc, find_pc_mapped_section (pc)); |
c906108c | 3012 | } |
71a3c369 TT |
3013 | |
3014 | /* See symtab.h. */ | |
3015 | ||
3016 | struct symbol * | |
3017 | find_symbol_at_address (CORE_ADDR address) | |
3018 | { | |
2030c079 | 3019 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
3020 | { |
3021 | if (objfile->sf == NULL | |
3022 | || objfile->sf->qf->find_compunit_symtab_by_address == NULL) | |
3023 | continue; | |
71a3c369 | 3024 | |
aed57c53 TT |
3025 | struct compunit_symtab *symtab |
3026 | = objfile->sf->qf->find_compunit_symtab_by_address (objfile, address); | |
3027 | if (symtab != NULL) | |
3028 | { | |
3029 | const struct blockvector *bv = COMPUNIT_BLOCKVECTOR (symtab); | |
71a3c369 | 3030 | |
aed57c53 | 3031 | for (int i = GLOBAL_BLOCK; i <= STATIC_BLOCK; ++i) |
71a3c369 | 3032 | { |
582942f4 | 3033 | const struct block *b = BLOCKVECTOR_BLOCK (bv, i); |
aed57c53 TT |
3034 | struct block_iterator iter; |
3035 | struct symbol *sym; | |
3036 | ||
3037 | ALL_BLOCK_SYMBOLS (b, iter, sym) | |
3038 | { | |
3039 | if (SYMBOL_CLASS (sym) == LOC_STATIC | |
3040 | && SYMBOL_VALUE_ADDRESS (sym) == address) | |
3041 | return sym; | |
3042 | } | |
71a3c369 | 3043 | } |
aed57c53 TT |
3044 | } |
3045 | } | |
71a3c369 TT |
3046 | |
3047 | return NULL; | |
3048 | } | |
3049 | ||
c906108c | 3050 | \f |
c5aa993b | 3051 | |
7e73cedf | 3052 | /* Find the source file and line number for a given PC value and SECTION. |
c906108c SS |
3053 | Return a structure containing a symtab pointer, a line number, |
3054 | and a pc range for the entire source line. | |
3055 | The value's .pc field is NOT the specified pc. | |
3056 | NOTCURRENT nonzero means, if specified pc is on a line boundary, | |
3057 | use the line that ends there. Otherwise, in that case, the line | |
3058 | that begins there is used. */ | |
3059 | ||
3060 | /* The big complication here is that a line may start in one file, and end just | |
3061 | before the start of another file. This usually occurs when you #include | |
3062 | code in the middle of a subroutine. To properly find the end of a line's PC | |
3063 | range, we must search all symtabs associated with this compilation unit, and | |
3064 | find the one whose first PC is closer than that of the next line in this | |
3065 | symtab. */ | |
3066 | ||
c906108c | 3067 | struct symtab_and_line |
714835d5 | 3068 | find_pc_sect_line (CORE_ADDR pc, struct obj_section *section, int notcurrent) |
c906108c | 3069 | { |
43f3e411 | 3070 | struct compunit_symtab *cust; |
52f0bd74 AC |
3071 | struct linetable *l; |
3072 | int len; | |
52f0bd74 | 3073 | struct linetable_entry *item; |
346d1dfe | 3074 | const struct blockvector *bv; |
7cbd4a93 | 3075 | struct bound_minimal_symbol msymbol; |
c906108c SS |
3076 | |
3077 | /* Info on best line seen so far, and where it starts, and its file. */ | |
3078 | ||
3079 | struct linetable_entry *best = NULL; | |
3080 | CORE_ADDR best_end = 0; | |
3081 | struct symtab *best_symtab = 0; | |
3082 | ||
3083 | /* Store here the first line number | |
3084 | of a file which contains the line at the smallest pc after PC. | |
3085 | If we don't find a line whose range contains PC, | |
3086 | we will use a line one less than this, | |
3087 | with a range from the start of that file to the first line's pc. */ | |
3088 | struct linetable_entry *alt = NULL; | |
c906108c SS |
3089 | |
3090 | /* Info on best line seen in this file. */ | |
3091 | ||
3092 | struct linetable_entry *prev; | |
3093 | ||
3094 | /* If this pc is not from the current frame, | |
3095 | it is the address of the end of a call instruction. | |
3096 | Quite likely that is the start of the following statement. | |
3097 | But what we want is the statement containing the instruction. | |
3098 | Fudge the pc to make sure we get that. */ | |
3099 | ||
b77b1eb7 JB |
3100 | /* It's tempting to assume that, if we can't find debugging info for |
3101 | any function enclosing PC, that we shouldn't search for line | |
3102 | number info, either. However, GAS can emit line number info for | |
3103 | assembly files --- very helpful when debugging hand-written | |
3104 | assembly code. In such a case, we'd have no debug info for the | |
3105 | function, but we would have line info. */ | |
648f4f79 | 3106 | |
c906108c SS |
3107 | if (notcurrent) |
3108 | pc -= 1; | |
3109 | ||
c5aa993b | 3110 | /* elz: added this because this function returned the wrong |
c906108c | 3111 | information if the pc belongs to a stub (import/export) |
c378eb4e | 3112 | to call a shlib function. This stub would be anywhere between |
9af17804 | 3113 | two functions in the target, and the line info was erroneously |
c378eb4e MS |
3114 | taken to be the one of the line before the pc. */ |
3115 | ||
c906108c | 3116 | /* RT: Further explanation: |
c5aa993b | 3117 | |
c906108c SS |
3118 | * We have stubs (trampolines) inserted between procedures. |
3119 | * | |
3120 | * Example: "shr1" exists in a shared library, and a "shr1" stub also | |
3121 | * exists in the main image. | |
3122 | * | |
3123 | * In the minimal symbol table, we have a bunch of symbols | |
c378eb4e | 3124 | * sorted by start address. The stubs are marked as "trampoline", |
c906108c SS |
3125 | * the others appear as text. E.g.: |
3126 | * | |
9af17804 | 3127 | * Minimal symbol table for main image |
c906108c SS |
3128 | * main: code for main (text symbol) |
3129 | * shr1: stub (trampoline symbol) | |
3130 | * foo: code for foo (text symbol) | |
3131 | * ... | |
3132 | * Minimal symbol table for "shr1" image: | |
3133 | * ... | |
3134 | * shr1: code for shr1 (text symbol) | |
3135 | * ... | |
3136 | * | |
3137 | * So the code below is trying to detect if we are in the stub | |
3138 | * ("shr1" stub), and if so, find the real code ("shr1" trampoline), | |
3139 | * and if found, do the symbolization from the real-code address | |
3140 | * rather than the stub address. | |
3141 | * | |
3142 | * Assumptions being made about the minimal symbol table: | |
3143 | * 1. lookup_minimal_symbol_by_pc() will return a trampoline only | |
c378eb4e | 3144 | * if we're really in the trampoline.s If we're beyond it (say |
9af17804 | 3145 | * we're in "foo" in the above example), it'll have a closer |
c906108c SS |
3146 | * symbol (the "foo" text symbol for example) and will not |
3147 | * return the trampoline. | |
3148 | * 2. lookup_minimal_symbol_text() will find a real text symbol | |
3149 | * corresponding to the trampoline, and whose address will | |
c378eb4e | 3150 | * be different than the trampoline address. I put in a sanity |
c906108c SS |
3151 | * check for the address being the same, to avoid an |
3152 | * infinite recursion. | |
3153 | */ | |
c5aa993b | 3154 | msymbol = lookup_minimal_symbol_by_pc (pc); |
7cbd4a93 TT |
3155 | if (msymbol.minsym != NULL) |
3156 | if (MSYMBOL_TYPE (msymbol.minsym) == mst_solib_trampoline) | |
c5aa993b | 3157 | { |
77e371c0 | 3158 | struct bound_minimal_symbol mfunsym |
c9d95fa3 | 3159 | = lookup_minimal_symbol_text (msymbol.minsym->linkage_name (), |
77e371c0 TT |
3160 | NULL); |
3161 | ||
3162 | if (mfunsym.minsym == NULL) | |
c5aa993b JM |
3163 | /* I eliminated this warning since it is coming out |
3164 | * in the following situation: | |
3165 | * gdb shmain // test program with shared libraries | |
3166 | * (gdb) break shr1 // function in shared lib | |
3167 | * Warning: In stub for ... | |
9af17804 | 3168 | * In the above situation, the shared lib is not loaded yet, |
c5aa993b JM |
3169 | * so of course we can't find the real func/line info, |
3170 | * but the "break" still works, and the warning is annoying. | |
c378eb4e | 3171 | * So I commented out the warning. RT */ |
3e43a32a | 3172 | /* warning ("In stub for %s; unable to find real function/line info", |
987012b8 | 3173 | msymbol->linkage_name ()); */ |
c378eb4e | 3174 | ; |
c5aa993b | 3175 | /* fall through */ |
77e371c0 TT |
3176 | else if (BMSYMBOL_VALUE_ADDRESS (mfunsym) |
3177 | == BMSYMBOL_VALUE_ADDRESS (msymbol)) | |
c5aa993b | 3178 | /* Avoid infinite recursion */ |
c378eb4e | 3179 | /* See above comment about why warning is commented out. */ |
3e43a32a | 3180 | /* warning ("In stub for %s; unable to find real function/line info", |
987012b8 | 3181 | msymbol->linkage_name ()); */ |
c378eb4e | 3182 | ; |
c5aa993b JM |
3183 | /* fall through */ |
3184 | else | |
dd69bf7a KB |
3185 | { |
3186 | /* Detect an obvious case of infinite recursion. If this | |
3187 | should occur, we'd like to know about it, so error out, | |
3188 | fatally. */ | |
3189 | if (BMSYMBOL_VALUE_ADDRESS (mfunsym) == pc) | |
3190 | internal_error (__FILE__, __LINE__, | |
3191 | _("Infinite recursion detected in find_pc_sect_line;" | |
3192 | "please file a bug report")); | |
3193 | ||
3194 | return find_pc_line (BMSYMBOL_VALUE_ADDRESS (mfunsym), 0); | |
3195 | } | |
c5aa993b | 3196 | } |
c906108c | 3197 | |
51abb421 PA |
3198 | symtab_and_line val; |
3199 | val.pspace = current_program_space; | |
c906108c | 3200 | |
43f3e411 DE |
3201 | cust = find_pc_sect_compunit_symtab (pc, section); |
3202 | if (cust == NULL) | |
c906108c | 3203 | { |
c378eb4e | 3204 | /* If no symbol information, return previous pc. */ |
c906108c SS |
3205 | if (notcurrent) |
3206 | pc++; | |
3207 | val.pc = pc; | |
3208 | return val; | |
3209 | } | |
3210 | ||
43f3e411 | 3211 | bv = COMPUNIT_BLOCKVECTOR (cust); |
c906108c SS |
3212 | |
3213 | /* Look at all the symtabs that share this blockvector. | |
3214 | They all have the same apriori range, that we found was right; | |
3215 | but they have different line tables. */ | |
3216 | ||
5accd1a0 | 3217 | for (symtab *iter_s : compunit_filetabs (cust)) |
c906108c SS |
3218 | { |
3219 | /* Find the best line in this symtab. */ | |
43f3e411 | 3220 | l = SYMTAB_LINETABLE (iter_s); |
c906108c | 3221 | if (!l) |
c5aa993b | 3222 | continue; |
c906108c SS |
3223 | len = l->nitems; |
3224 | if (len <= 0) | |
3225 | { | |
3226 | /* I think len can be zero if the symtab lacks line numbers | |
3227 | (e.g. gcc -g1). (Either that or the LINETABLE is NULL; | |
3228 | I'm not sure which, and maybe it depends on the symbol | |
3229 | reader). */ | |
3230 | continue; | |
3231 | } | |
3232 | ||
3233 | prev = NULL; | |
c378eb4e | 3234 | item = l->item; /* Get first line info. */ |
c906108c SS |
3235 | |
3236 | /* Is this file's first line closer than the first lines of other files? | |
c5aa993b | 3237 | If so, record this file, and its first line, as best alternate. */ |
c906108c | 3238 | if (item->pc > pc && (!alt || item->pc < alt->pc)) |
c656bca5 | 3239 | alt = item; |
c906108c | 3240 | |
b926417a | 3241 | auto pc_compare = [](const CORE_ADDR & comp_pc, |
7cbe16e9 SR |
3242 | const struct linetable_entry & lhs)->bool |
3243 | { | |
b926417a | 3244 | return comp_pc < lhs.pc; |
7cbe16e9 | 3245 | }; |
c906108c | 3246 | |
7cbe16e9 SR |
3247 | struct linetable_entry *first = item; |
3248 | struct linetable_entry *last = item + len; | |
3249 | item = std::upper_bound (first, last, pc, pc_compare); | |
3250 | if (item != first) | |
d8cc8af6 | 3251 | prev = item - 1; /* Found a matching item. */ |
c906108c SS |
3252 | |
3253 | /* At this point, prev points at the line whose start addr is <= pc, and | |
c5aa993b JM |
3254 | item points at the next line. If we ran off the end of the linetable |
3255 | (pc >= start of the last line), then prev == item. If pc < start of | |
3256 | the first line, prev will not be set. */ | |
c906108c SS |
3257 | |
3258 | /* Is this file's best line closer than the best in the other files? | |
083ae935 DJ |
3259 | If so, record this file, and its best line, as best so far. Don't |
3260 | save prev if it represents the end of a function (i.e. line number | |
3261 | 0) instead of a real line. */ | |
c906108c | 3262 | |
083ae935 | 3263 | if (prev && prev->line && (!best || prev->pc > best->pc)) |
c906108c SS |
3264 | { |
3265 | best = prev; | |
43f3e411 | 3266 | best_symtab = iter_s; |
25d53da1 | 3267 | |
8c95582d AB |
3268 | /* If during the binary search we land on a non-statement entry, |
3269 | scan backward through entries at the same address to see if | |
3270 | there is an entry marked as is-statement. In theory this | |
3271 | duplication should have been removed from the line table | |
3272 | during construction, this is just a double check. If the line | |
3273 | table has had the duplication removed then this should be | |
3274 | pretty cheap. */ | |
3275 | if (!best->is_stmt) | |
3276 | { | |
3277 | struct linetable_entry *tmp = best; | |
3278 | while (tmp > first && (tmp - 1)->pc == tmp->pc | |
3279 | && (tmp - 1)->line != 0 && !tmp->is_stmt) | |
3280 | --tmp; | |
3281 | if (tmp->is_stmt) | |
3282 | best = tmp; | |
3283 | } | |
3284 | ||
25d53da1 KB |
3285 | /* Discard BEST_END if it's before the PC of the current BEST. */ |
3286 | if (best_end <= best->pc) | |
3287 | best_end = 0; | |
c906108c | 3288 | } |
25d53da1 KB |
3289 | |
3290 | /* If another line (denoted by ITEM) is in the linetable and its | |
7cbe16e9 | 3291 | PC is after BEST's PC, but before the current BEST_END, then |
25d53da1 | 3292 | use ITEM's PC as the new best_end. */ |
4ee89e90 | 3293 | if (best && item < last && item->pc > best->pc |
7cbe16e9 | 3294 | && (best_end == 0 || best_end > item->pc)) |
25d53da1 | 3295 | best_end = item->pc; |
c906108c SS |
3296 | } |
3297 | ||
3298 | if (!best_symtab) | |
3299 | { | |
e86e87f7 DJ |
3300 | /* If we didn't find any line number info, just return zeros. |
3301 | We used to return alt->line - 1 here, but that could be | |
3302 | anywhere; if we don't have line number info for this PC, | |
3303 | don't make some up. */ | |
3304 | val.pc = pc; | |
c906108c | 3305 | } |
e8717518 FF |
3306 | else if (best->line == 0) |
3307 | { | |
3308 | /* If our best fit is in a range of PC's for which no line | |
3309 | number info is available (line number is zero) then we didn't | |
c378eb4e | 3310 | find any valid line information. */ |
e8717518 FF |
3311 | val.pc = pc; |
3312 | } | |
c906108c SS |
3313 | else |
3314 | { | |
8c95582d | 3315 | val.is_stmt = best->is_stmt; |
c906108c SS |
3316 | val.symtab = best_symtab; |
3317 | val.line = best->line; | |
3318 | val.pc = best->pc; | |
3319 | if (best_end && (!alt || best_end < alt->pc)) | |
3320 | val.end = best_end; | |
3321 | else if (alt) | |
3322 | val.end = alt->pc; | |
3323 | else | |
3324 | val.end = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); | |
3325 | } | |
3326 | val.section = section; | |
3327 | return val; | |
3328 | } | |
3329 | ||
c378eb4e | 3330 | /* Backward compatibility (no section). */ |
c906108c SS |
3331 | |
3332 | struct symtab_and_line | |
fba45db2 | 3333 | find_pc_line (CORE_ADDR pc, int notcurrent) |
c906108c | 3334 | { |
714835d5 | 3335 | struct obj_section *section; |
c906108c SS |
3336 | |
3337 | section = find_pc_overlay (pc); | |
31a8f60f AB |
3338 | if (!pc_in_unmapped_range (pc, section)) |
3339 | return find_pc_sect_line (pc, section, notcurrent); | |
3340 | ||
3341 | /* If the original PC was an unmapped address then we translate this to a | |
3342 | mapped address in order to lookup the sal. However, as the user | |
3343 | passed us an unmapped address it makes more sense to return a result | |
3344 | that has the pc and end fields translated to unmapped addresses. */ | |
3345 | pc = overlay_mapped_address (pc, section); | |
3346 | symtab_and_line sal = find_pc_sect_line (pc, section, notcurrent); | |
3347 | sal.pc = overlay_unmapped_address (sal.pc, section); | |
3348 | sal.end = overlay_unmapped_address (sal.end, section); | |
3349 | return sal; | |
c906108c | 3350 | } |
34248c3a DE |
3351 | |
3352 | /* See symtab.h. */ | |
3353 | ||
3354 | struct symtab * | |
3355 | find_pc_line_symtab (CORE_ADDR pc) | |
3356 | { | |
3357 | struct symtab_and_line sal; | |
3358 | ||
3359 | /* This always passes zero for NOTCURRENT to find_pc_line. | |
3360 | There are currently no callers that ever pass non-zero. */ | |
3361 | sal = find_pc_line (pc, 0); | |
3362 | return sal.symtab; | |
3363 | } | |
c906108c | 3364 | \f |
c906108c SS |
3365 | /* Find line number LINE in any symtab whose name is the same as |
3366 | SYMTAB. | |
3367 | ||
3368 | If found, return the symtab that contains the linetable in which it was | |
3369 | found, set *INDEX to the index in the linetable of the best entry | |
ececd218 | 3370 | found, and set *EXACT_MATCH to true if the value returned is an |
c906108c SS |
3371 | exact match. |
3372 | ||
3373 | If not found, return NULL. */ | |
3374 | ||
50641945 | 3375 | struct symtab * |
5accd1a0 | 3376 | find_line_symtab (struct symtab *sym_tab, int line, |
ececd218 | 3377 | int *index, bool *exact_match) |
c906108c | 3378 | { |
6f43c46f | 3379 | int exact = 0; /* Initialized here to avoid a compiler warning. */ |
c906108c SS |
3380 | |
3381 | /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE | |
3382 | so far seen. */ | |
3383 | ||
3384 | int best_index; | |
3385 | struct linetable *best_linetable; | |
3386 | struct symtab *best_symtab; | |
3387 | ||
3388 | /* First try looking it up in the given symtab. */ | |
5accd1a0 TT |
3389 | best_linetable = SYMTAB_LINETABLE (sym_tab); |
3390 | best_symtab = sym_tab; | |
f8eba3c6 | 3391 | best_index = find_line_common (best_linetable, line, &exact, 0); |
c906108c SS |
3392 | if (best_index < 0 || !exact) |
3393 | { | |
3394 | /* Didn't find an exact match. So we better keep looking for | |
c5aa993b JM |
3395 | another symtab with the same name. In the case of xcoff, |
3396 | multiple csects for one source file (produced by IBM's FORTRAN | |
3397 | compiler) produce multiple symtabs (this is unavoidable | |
3398 | assuming csects can be at arbitrary places in memory and that | |
3399 | the GLOBAL_BLOCK of a symtab has a begin and end address). */ | |
c906108c SS |
3400 | |
3401 | /* BEST is the smallest linenumber > LINE so far seen, | |
c5aa993b JM |
3402 | or 0 if none has been seen so far. |
3403 | BEST_INDEX and BEST_LINETABLE identify the item for it. */ | |
c906108c SS |
3404 | int best; |
3405 | ||
c906108c SS |
3406 | if (best_index >= 0) |
3407 | best = best_linetable->item[best_index].line; | |
3408 | else | |
3409 | best = 0; | |
3410 | ||
2030c079 | 3411 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
3412 | { |
3413 | if (objfile->sf) | |
3414 | objfile->sf->qf->expand_symtabs_with_fullname | |
5accd1a0 | 3415 | (objfile, symtab_to_fullname (sym_tab)); |
aed57c53 | 3416 | } |
51432cca | 3417 | |
2030c079 | 3418 | for (objfile *objfile : current_program_space->objfiles ()) |
8b31193a | 3419 | { |
b669c953 | 3420 | for (compunit_symtab *cu : objfile->compunits ()) |
8b31193a TT |
3421 | { |
3422 | for (symtab *s : compunit_filetabs (cu)) | |
3423 | { | |
3424 | struct linetable *l; | |
3425 | int ind; | |
3426 | ||
3427 | if (FILENAME_CMP (sym_tab->filename, s->filename) != 0) | |
3428 | continue; | |
3429 | if (FILENAME_CMP (symtab_to_fullname (sym_tab), | |
3430 | symtab_to_fullname (s)) != 0) | |
3431 | continue; | |
3432 | l = SYMTAB_LINETABLE (s); | |
3433 | ind = find_line_common (l, line, &exact, 0); | |
3434 | if (ind >= 0) | |
3435 | { | |
3436 | if (exact) | |
3437 | { | |
3438 | best_index = ind; | |
3439 | best_linetable = l; | |
3440 | best_symtab = s; | |
3441 | goto done; | |
3442 | } | |
3443 | if (best == 0 || l->item[ind].line < best) | |
3444 | { | |
3445 | best = l->item[ind].line; | |
3446 | best_index = ind; | |
3447 | best_linetable = l; | |
3448 | best_symtab = s; | |
3449 | } | |
3450 | } | |
3451 | } | |
3452 | } | |
3453 | } | |
c906108c | 3454 | } |
c5aa993b | 3455 | done: |
c906108c SS |
3456 | if (best_index < 0) |
3457 | return NULL; | |
3458 | ||
3459 | if (index) | |
3460 | *index = best_index; | |
3461 | if (exact_match) | |
ececd218 | 3462 | *exact_match = (exact != 0); |
c906108c SS |
3463 | |
3464 | return best_symtab; | |
3465 | } | |
f8eba3c6 TT |
3466 | |
3467 | /* Given SYMTAB, returns all the PCs function in the symtab that | |
67d89901 TT |
3468 | exactly match LINE. Returns an empty vector if there are no exact |
3469 | matches, but updates BEST_ITEM in this case. */ | |
f8eba3c6 | 3470 | |
67d89901 | 3471 | std::vector<CORE_ADDR> |
f8eba3c6 TT |
3472 | find_pcs_for_symtab_line (struct symtab *symtab, int line, |
3473 | struct linetable_entry **best_item) | |
3474 | { | |
c656bca5 | 3475 | int start = 0; |
67d89901 | 3476 | std::vector<CORE_ADDR> result; |
f8eba3c6 TT |
3477 | |
3478 | /* First, collect all the PCs that are at this line. */ | |
3479 | while (1) | |
3480 | { | |
3481 | int was_exact; | |
3482 | int idx; | |
3483 | ||
8435453b DE |
3484 | idx = find_line_common (SYMTAB_LINETABLE (symtab), line, &was_exact, |
3485 | start); | |
f8eba3c6 TT |
3486 | if (idx < 0) |
3487 | break; | |
3488 | ||
3489 | if (!was_exact) | |
3490 | { | |
8435453b | 3491 | struct linetable_entry *item = &SYMTAB_LINETABLE (symtab)->item[idx]; |
f8eba3c6 | 3492 | |
8c95582d AB |
3493 | if (*best_item == NULL |
3494 | || (item->line < (*best_item)->line && item->is_stmt)) | |
f8eba3c6 TT |
3495 | *best_item = item; |
3496 | ||
3497 | break; | |
3498 | } | |
3499 | ||
67d89901 | 3500 | result.push_back (SYMTAB_LINETABLE (symtab)->item[idx].pc); |
f8eba3c6 TT |
3501 | start = idx + 1; |
3502 | } | |
3503 | ||
3504 | return result; | |
3505 | } | |
3506 | ||
c906108c SS |
3507 | \f |
3508 | /* Set the PC value for a given source file and line number and return true. | |
ececd218 | 3509 | Returns false for invalid line number (and sets the PC to 0). |
c906108c SS |
3510 | The source file is specified with a struct symtab. */ |
3511 | ||
ececd218 | 3512 | bool |
fba45db2 | 3513 | find_line_pc (struct symtab *symtab, int line, CORE_ADDR *pc) |
c906108c SS |
3514 | { |
3515 | struct linetable *l; | |
3516 | int ind; | |
3517 | ||
3518 | *pc = 0; | |
3519 | if (symtab == 0) | |
ececd218 | 3520 | return false; |
c906108c SS |
3521 | |
3522 | symtab = find_line_symtab (symtab, line, &ind, NULL); | |
3523 | if (symtab != NULL) | |
3524 | { | |
8435453b | 3525 | l = SYMTAB_LINETABLE (symtab); |
c906108c | 3526 | *pc = l->item[ind].pc; |
ececd218 | 3527 | return true; |
c906108c SS |
3528 | } |
3529 | else | |
ececd218 | 3530 | return false; |
c906108c SS |
3531 | } |
3532 | ||
3533 | /* Find the range of pc values in a line. | |
3534 | Store the starting pc of the line into *STARTPTR | |
3535 | and the ending pc (start of next line) into *ENDPTR. | |
ececd218 CB |
3536 | Returns true to indicate success. |
3537 | Returns false if could not find the specified line. */ | |
c906108c | 3538 | |
ececd218 | 3539 | bool |
fba45db2 KB |
3540 | find_line_pc_range (struct symtab_and_line sal, CORE_ADDR *startptr, |
3541 | CORE_ADDR *endptr) | |
c906108c SS |
3542 | { |
3543 | CORE_ADDR startaddr; | |
3544 | struct symtab_and_line found_sal; | |
3545 | ||
3546 | startaddr = sal.pc; | |
c5aa993b | 3547 | if (startaddr == 0 && !find_line_pc (sal.symtab, sal.line, &startaddr)) |
ececd218 | 3548 | return false; |
c906108c SS |
3549 | |
3550 | /* This whole function is based on address. For example, if line 10 has | |
3551 | two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then | |
3552 | "info line *0x123" should say the line goes from 0x100 to 0x200 | |
3553 | and "info line *0x355" should say the line goes from 0x300 to 0x400. | |
3554 | This also insures that we never give a range like "starts at 0x134 | |
3555 | and ends at 0x12c". */ | |
3556 | ||
3557 | found_sal = find_pc_sect_line (startaddr, sal.section, 0); | |
3558 | if (found_sal.line != sal.line) | |
3559 | { | |
3560 | /* The specified line (sal) has zero bytes. */ | |
3561 | *startptr = found_sal.pc; | |
3562 | *endptr = found_sal.pc; | |
3563 | } | |
3564 | else | |
3565 | { | |
3566 | *startptr = found_sal.pc; | |
3567 | *endptr = found_sal.end; | |
3568 | } | |
ececd218 | 3569 | return true; |
c906108c SS |
3570 | } |
3571 | ||
3572 | /* Given a line table and a line number, return the index into the line | |
3573 | table for the pc of the nearest line whose number is >= the specified one. | |
3574 | Return -1 if none is found. The value is >= 0 if it is an index. | |
f8eba3c6 | 3575 | START is the index at which to start searching the line table. |
c906108c SS |
3576 | |
3577 | Set *EXACT_MATCH nonzero if the value returned is an exact match. */ | |
3578 | ||
3579 | static int | |
aa1ee363 | 3580 | find_line_common (struct linetable *l, int lineno, |
f8eba3c6 | 3581 | int *exact_match, int start) |
c906108c | 3582 | { |
52f0bd74 AC |
3583 | int i; |
3584 | int len; | |
c906108c SS |
3585 | |
3586 | /* BEST is the smallest linenumber > LINENO so far seen, | |
3587 | or 0 if none has been seen so far. | |
3588 | BEST_INDEX identifies the item for it. */ | |
3589 | ||
3590 | int best_index = -1; | |
3591 | int best = 0; | |
3592 | ||
b7589f7d DJ |
3593 | *exact_match = 0; |
3594 | ||
c906108c SS |
3595 | if (lineno <= 0) |
3596 | return -1; | |
3597 | if (l == 0) | |
3598 | return -1; | |
3599 | ||
3600 | len = l->nitems; | |
f8eba3c6 | 3601 | for (i = start; i < len; i++) |
c906108c | 3602 | { |
aa1ee363 | 3603 | struct linetable_entry *item = &(l->item[i]); |
c906108c | 3604 | |
8c95582d AB |
3605 | /* Ignore non-statements. */ |
3606 | if (!item->is_stmt) | |
3607 | continue; | |
3608 | ||
c906108c SS |
3609 | if (item->line == lineno) |
3610 | { | |
3611 | /* Return the first (lowest address) entry which matches. */ | |
3612 | *exact_match = 1; | |
3613 | return i; | |
3614 | } | |
3615 | ||
3616 | if (item->line > lineno && (best == 0 || item->line < best)) | |
3617 | { | |
3618 | best = item->line; | |
3619 | best_index = i; | |
3620 | } | |
3621 | } | |
3622 | ||
3623 | /* If we got here, we didn't get an exact match. */ | |
c906108c SS |
3624 | return best_index; |
3625 | } | |
3626 | ||
ececd218 | 3627 | bool |
fba45db2 | 3628 | find_pc_line_pc_range (CORE_ADDR pc, CORE_ADDR *startptr, CORE_ADDR *endptr) |
c906108c SS |
3629 | { |
3630 | struct symtab_and_line sal; | |
433759f7 | 3631 | |
c906108c SS |
3632 | sal = find_pc_line (pc, 0); |
3633 | *startptr = sal.pc; | |
3634 | *endptr = sal.end; | |
3635 | return sal.symtab != 0; | |
3636 | } | |
3637 | ||
cd2bb709 PA |
3638 | /* Helper for find_function_start_sal. Does most of the work, except |
3639 | setting the sal's symbol. */ | |
aab2f208 | 3640 | |
cd2bb709 PA |
3641 | static symtab_and_line |
3642 | find_function_start_sal_1 (CORE_ADDR func_addr, obj_section *section, | |
3643 | bool funfirstline) | |
aab2f208 | 3644 | { |
42ddae10 | 3645 | symtab_and_line sal = find_pc_sect_line (func_addr, section, 0); |
aab2f208 | 3646 | |
6e22494e JK |
3647 | if (funfirstline && sal.symtab != NULL |
3648 | && (COMPUNIT_LOCATIONS_VALID (SYMTAB_COMPUNIT (sal.symtab)) | |
3649 | || SYMTAB_LANGUAGE (sal.symtab) == language_asm)) | |
3650 | { | |
08feed99 | 3651 | struct gdbarch *gdbarch = SYMTAB_OBJFILE (sal.symtab)->arch (); |
141c5cc4 | 3652 | |
42ddae10 | 3653 | sal.pc = func_addr; |
141c5cc4 JK |
3654 | if (gdbarch_skip_entrypoint_p (gdbarch)) |
3655 | sal.pc = gdbarch_skip_entrypoint (gdbarch, sal.pc); | |
6e22494e JK |
3656 | return sal; |
3657 | } | |
3658 | ||
aab2f208 | 3659 | /* We always should have a line for the function start address. |
42ddae10 | 3660 | If we don't, something is odd. Create a plain SAL referring |
aab2f208 DE |
3661 | just the PC and hope that skip_prologue_sal (if requested) |
3662 | can find a line number for after the prologue. */ | |
42ddae10 | 3663 | if (sal.pc < func_addr) |
aab2f208 | 3664 | { |
51abb421 | 3665 | sal = {}; |
aab2f208 | 3666 | sal.pspace = current_program_space; |
42ddae10 | 3667 | sal.pc = func_addr; |
08be3fe3 | 3668 | sal.section = section; |
aab2f208 DE |
3669 | } |
3670 | ||
3671 | if (funfirstline) | |
3672 | skip_prologue_sal (&sal); | |
3673 | ||
3674 | return sal; | |
3675 | } | |
3676 | ||
42ddae10 PA |
3677 | /* See symtab.h. */ |
3678 | ||
cd2bb709 PA |
3679 | symtab_and_line |
3680 | find_function_start_sal (CORE_ADDR func_addr, obj_section *section, | |
3681 | bool funfirstline) | |
3682 | { | |
3683 | symtab_and_line sal | |
3684 | = find_function_start_sal_1 (func_addr, section, funfirstline); | |
3685 | ||
3686 | /* find_function_start_sal_1 does a linetable search, so it finds | |
3687 | the symtab and linenumber, but not a symbol. Fill in the | |
3688 | function symbol too. */ | |
3689 | sal.symbol = find_pc_sect_containing_function (sal.pc, sal.section); | |
3690 | ||
3691 | return sal; | |
3692 | } | |
3693 | ||
3694 | /* See symtab.h. */ | |
3695 | ||
42ddae10 PA |
3696 | symtab_and_line |
3697 | find_function_start_sal (symbol *sym, bool funfirstline) | |
3698 | { | |
3699 | fixup_symbol_section (sym, NULL); | |
3700 | symtab_and_line sal | |
2b1ffcfd | 3701 | = find_function_start_sal_1 (BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (sym)), |
cd2bb709 PA |
3702 | SYMBOL_OBJ_SECTION (symbol_objfile (sym), sym), |
3703 | funfirstline); | |
42ddae10 PA |
3704 | sal.symbol = sym; |
3705 | return sal; | |
3706 | } | |
3707 | ||
3708 | ||
8c7a1ee8 EZ |
3709 | /* Given a function start address FUNC_ADDR and SYMTAB, find the first |
3710 | address for that function that has an entry in SYMTAB's line info | |
3711 | table. If such an entry cannot be found, return FUNC_ADDR | |
3712 | unaltered. */ | |
eca864fe | 3713 | |
70221824 | 3714 | static CORE_ADDR |
8c7a1ee8 EZ |
3715 | skip_prologue_using_lineinfo (CORE_ADDR func_addr, struct symtab *symtab) |
3716 | { | |
3717 | CORE_ADDR func_start, func_end; | |
3718 | struct linetable *l; | |
952a6d41 | 3719 | int i; |
8c7a1ee8 EZ |
3720 | |
3721 | /* Give up if this symbol has no lineinfo table. */ | |
8435453b | 3722 | l = SYMTAB_LINETABLE (symtab); |
8c7a1ee8 EZ |
3723 | if (l == NULL) |
3724 | return func_addr; | |
3725 | ||
3726 | /* Get the range for the function's PC values, or give up if we | |
3727 | cannot, for some reason. */ | |
3728 | if (!find_pc_partial_function (func_addr, NULL, &func_start, &func_end)) | |
3729 | return func_addr; | |
3730 | ||
3731 | /* Linetable entries are ordered by PC values, see the commentary in | |
3732 | symtab.h where `struct linetable' is defined. Thus, the first | |
3733 | entry whose PC is in the range [FUNC_START..FUNC_END[ is the | |
3734 | address we are looking for. */ | |
3735 | for (i = 0; i < l->nitems; i++) | |
3736 | { | |
3737 | struct linetable_entry *item = &(l->item[i]); | |
3738 | ||
3739 | /* Don't use line numbers of zero, they mark special entries in | |
3740 | the table. See the commentary on symtab.h before the | |
3741 | definition of struct linetable. */ | |
3742 | if (item->line > 0 && func_start <= item->pc && item->pc < func_end) | |
3743 | return item->pc; | |
3744 | } | |
3745 | ||
3746 | return func_addr; | |
3747 | } | |
3748 | ||
059acae7 UW |
3749 | /* Adjust SAL to the first instruction past the function prologue. |
3750 | If the PC was explicitly specified, the SAL is not changed. | |
5b0e2db4 AB |
3751 | If the line number was explicitly specified then the SAL can still be |
3752 | updated, unless the language for SAL is assembler, in which case the SAL | |
3753 | will be left unchanged. | |
3754 | If SAL is already past the prologue, then do nothing. */ | |
eca864fe | 3755 | |
059acae7 UW |
3756 | void |
3757 | skip_prologue_sal (struct symtab_and_line *sal) | |
3758 | { | |
3759 | struct symbol *sym; | |
3760 | struct symtab_and_line start_sal; | |
8be455d7 | 3761 | CORE_ADDR pc, saved_pc; |
059acae7 UW |
3762 | struct obj_section *section; |
3763 | const char *name; | |
3764 | struct objfile *objfile; | |
3765 | struct gdbarch *gdbarch; | |
3977b71f | 3766 | const struct block *b, *function_block; |
8be455d7 | 3767 | int force_skip, skip; |
c906108c | 3768 | |
a4b411d6 | 3769 | /* Do not change the SAL if PC was specified explicitly. */ |
059acae7 UW |
3770 | if (sal->explicit_pc) |
3771 | return; | |
6c95b8df | 3772 | |
5b0e2db4 AB |
3773 | /* In assembly code, if the user asks for a specific line then we should |
3774 | not adjust the SAL. The user already has instruction level | |
3775 | visibility in this case, so selecting a line other than one requested | |
3776 | is likely to be the wrong choice. */ | |
3777 | if (sal->symtab != nullptr | |
3778 | && sal->explicit_line | |
3779 | && SYMTAB_LANGUAGE (sal->symtab) == language_asm) | |
3780 | return; | |
3781 | ||
5ed8105e PA |
3782 | scoped_restore_current_pspace_and_thread restore_pspace_thread; |
3783 | ||
059acae7 | 3784 | switch_to_program_space_and_thread (sal->pspace); |
6c95b8df | 3785 | |
059acae7 UW |
3786 | sym = find_pc_sect_function (sal->pc, sal->section); |
3787 | if (sym != NULL) | |
bccdca4a | 3788 | { |
059acae7 UW |
3789 | fixup_symbol_section (sym, NULL); |
3790 | ||
08be3fe3 | 3791 | objfile = symbol_objfile (sym); |
2b1ffcfd | 3792 | pc = BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (sym)); |
08be3fe3 | 3793 | section = SYMBOL_OBJ_SECTION (objfile, sym); |
987012b8 | 3794 | name = sym->linkage_name (); |
c906108c | 3795 | } |
059acae7 UW |
3796 | else |
3797 | { | |
7c7b6655 TT |
3798 | struct bound_minimal_symbol msymbol |
3799 | = lookup_minimal_symbol_by_pc_section (sal->pc, sal->section); | |
433759f7 | 3800 | |
7c7b6655 | 3801 | if (msymbol.minsym == NULL) |
5ed8105e | 3802 | return; |
059acae7 | 3803 | |
7c7b6655 | 3804 | objfile = msymbol.objfile; |
77e371c0 | 3805 | pc = BMSYMBOL_VALUE_ADDRESS (msymbol); |
efd66ac6 | 3806 | section = MSYMBOL_OBJ_SECTION (objfile, msymbol.minsym); |
c9d95fa3 | 3807 | name = msymbol.minsym->linkage_name (); |
059acae7 UW |
3808 | } |
3809 | ||
08feed99 | 3810 | gdbarch = objfile->arch (); |
059acae7 | 3811 | |
8be455d7 JK |
3812 | /* Process the prologue in two passes. In the first pass try to skip the |
3813 | prologue (SKIP is true) and verify there is a real need for it (indicated | |
3814 | by FORCE_SKIP). If no such reason was found run a second pass where the | |
3815 | prologue is not skipped (SKIP is false). */ | |
059acae7 | 3816 | |
8be455d7 JK |
3817 | skip = 1; |
3818 | force_skip = 1; | |
059acae7 | 3819 | |
8be455d7 JK |
3820 | /* Be conservative - allow direct PC (without skipping prologue) only if we |
3821 | have proven the CU (Compilation Unit) supports it. sal->SYMTAB does not | |
3822 | have to be set by the caller so we use SYM instead. */ | |
08be3fe3 DE |
3823 | if (sym != NULL |
3824 | && COMPUNIT_LOCATIONS_VALID (SYMTAB_COMPUNIT (symbol_symtab (sym)))) | |
8be455d7 | 3825 | force_skip = 0; |
059acae7 | 3826 | |
8be455d7 JK |
3827 | saved_pc = pc; |
3828 | do | |
c906108c | 3829 | { |
8be455d7 | 3830 | pc = saved_pc; |
4309257c | 3831 | |
8be455d7 JK |
3832 | /* If the function is in an unmapped overlay, use its unmapped LMA address, |
3833 | so that gdbarch_skip_prologue has something unique to work on. */ | |
3834 | if (section_is_overlay (section) && !section_is_mapped (section)) | |
3835 | pc = overlay_unmapped_address (pc, section); | |
3836 | ||
3837 | /* Skip "first line" of function (which is actually its prologue). */ | |
3838 | pc += gdbarch_deprecated_function_start_offset (gdbarch); | |
591a12a1 UW |
3839 | if (gdbarch_skip_entrypoint_p (gdbarch)) |
3840 | pc = gdbarch_skip_entrypoint (gdbarch, pc); | |
8be455d7 | 3841 | if (skip) |
46a62268 | 3842 | pc = gdbarch_skip_prologue_noexcept (gdbarch, pc); |
8be455d7 JK |
3843 | |
3844 | /* For overlays, map pc back into its mapped VMA range. */ | |
3845 | pc = overlay_mapped_address (pc, section); | |
3846 | ||
3847 | /* Calculate line number. */ | |
059acae7 | 3848 | start_sal = find_pc_sect_line (pc, section, 0); |
8be455d7 JK |
3849 | |
3850 | /* Check if gdbarch_skip_prologue left us in mid-line, and the next | |
3851 | line is still part of the same function. */ | |
3852 | if (skip && start_sal.pc != pc | |
2b1ffcfd | 3853 | && (sym ? (BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (sym)) <= start_sal.end |
b1d96efd | 3854 | && start_sal.end < BLOCK_END (SYMBOL_BLOCK_VALUE (sym))) |
7cbd4a93 TT |
3855 | : (lookup_minimal_symbol_by_pc_section (start_sal.end, section).minsym |
3856 | == lookup_minimal_symbol_by_pc_section (pc, section).minsym))) | |
8be455d7 JK |
3857 | { |
3858 | /* First pc of next line */ | |
3859 | pc = start_sal.end; | |
3860 | /* Recalculate the line number (might not be N+1). */ | |
3861 | start_sal = find_pc_sect_line (pc, section, 0); | |
3862 | } | |
3863 | ||
3864 | /* On targets with executable formats that don't have a concept of | |
3865 | constructors (ELF with .init has, PE doesn't), gcc emits a call | |
3866 | to `__main' in `main' between the prologue and before user | |
3867 | code. */ | |
3868 | if (gdbarch_skip_main_prologue_p (gdbarch) | |
7ccffd7c | 3869 | && name && strcmp_iw (name, "main") == 0) |
8be455d7 JK |
3870 | { |
3871 | pc = gdbarch_skip_main_prologue (gdbarch, pc); | |
3872 | /* Recalculate the line number (might not be N+1). */ | |
3873 | start_sal = find_pc_sect_line (pc, section, 0); | |
3874 | force_skip = 1; | |
3875 | } | |
4309257c | 3876 | } |
8be455d7 | 3877 | while (!force_skip && skip--); |
4309257c | 3878 | |
8c7a1ee8 EZ |
3879 | /* If we still don't have a valid source line, try to find the first |
3880 | PC in the lineinfo table that belongs to the same function. This | |
3881 | happens with COFF debug info, which does not seem to have an | |
3882 | entry in lineinfo table for the code after the prologue which has | |
3883 | no direct relation to source. For example, this was found to be | |
3884 | the case with the DJGPP target using "gcc -gcoff" when the | |
3885 | compiler inserted code after the prologue to make sure the stack | |
3886 | is aligned. */ | |
8be455d7 | 3887 | if (!force_skip && sym && start_sal.symtab == NULL) |
8c7a1ee8 | 3888 | { |
08be3fe3 | 3889 | pc = skip_prologue_using_lineinfo (pc, symbol_symtab (sym)); |
8c7a1ee8 | 3890 | /* Recalculate the line number. */ |
059acae7 | 3891 | start_sal = find_pc_sect_line (pc, section, 0); |
8c7a1ee8 EZ |
3892 | } |
3893 | ||
059acae7 UW |
3894 | /* If we're already past the prologue, leave SAL unchanged. Otherwise |
3895 | forward SAL to the end of the prologue. */ | |
3896 | if (sal->pc >= pc) | |
3897 | return; | |
3898 | ||
3899 | sal->pc = pc; | |
3900 | sal->section = section; | |
059acae7 UW |
3901 | sal->symtab = start_sal.symtab; |
3902 | sal->line = start_sal.line; | |
3903 | sal->end = start_sal.end; | |
c906108c | 3904 | |
edb3359d DJ |
3905 | /* Check if we are now inside an inlined function. If we can, |
3906 | use the call site of the function instead. */ | |
059acae7 | 3907 | b = block_for_pc_sect (sal->pc, sal->section); |
edb3359d DJ |
3908 | function_block = NULL; |
3909 | while (b != NULL) | |
3910 | { | |
3911 | if (BLOCK_FUNCTION (b) != NULL && block_inlined_p (b)) | |
3912 | function_block = b; | |
3913 | else if (BLOCK_FUNCTION (b) != NULL) | |
3914 | break; | |
3915 | b = BLOCK_SUPERBLOCK (b); | |
3916 | } | |
3917 | if (function_block != NULL | |
3918 | && SYMBOL_LINE (BLOCK_FUNCTION (function_block)) != 0) | |
3919 | { | |
059acae7 | 3920 | sal->line = SYMBOL_LINE (BLOCK_FUNCTION (function_block)); |
08be3fe3 | 3921 | sal->symtab = symbol_symtab (BLOCK_FUNCTION (function_block)); |
edb3359d | 3922 | } |
c906108c | 3923 | } |
50641945 | 3924 | |
f1f58506 DE |
3925 | /* Given PC at the function's start address, attempt to find the |
3926 | prologue end using SAL information. Return zero if the skip fails. | |
3927 | ||
3928 | A non-optimized prologue traditionally has one SAL for the function | |
3929 | and a second for the function body. A single line function has | |
3930 | them both pointing at the same line. | |
3931 | ||
3932 | An optimized prologue is similar but the prologue may contain | |
3933 | instructions (SALs) from the instruction body. Need to skip those | |
3934 | while not getting into the function body. | |
3935 | ||
3936 | The functions end point and an increasing SAL line are used as | |
3937 | indicators of the prologue's endpoint. | |
3938 | ||
3939 | This code is based on the function refine_prologue_limit | |
3940 | (found in ia64). */ | |
3941 | ||
3942 | CORE_ADDR | |
3943 | skip_prologue_using_sal (struct gdbarch *gdbarch, CORE_ADDR func_addr) | |
3944 | { | |
3945 | struct symtab_and_line prologue_sal; | |
3946 | CORE_ADDR start_pc; | |
3947 | CORE_ADDR end_pc; | |
3948 | const struct block *bl; | |
3949 | ||
3950 | /* Get an initial range for the function. */ | |
3951 | find_pc_partial_function (func_addr, NULL, &start_pc, &end_pc); | |
3952 | start_pc += gdbarch_deprecated_function_start_offset (gdbarch); | |
3953 | ||
3954 | prologue_sal = find_pc_line (start_pc, 0); | |
3955 | if (prologue_sal.line != 0) | |
3956 | { | |
3957 | /* For languages other than assembly, treat two consecutive line | |
3958 | entries at the same address as a zero-instruction prologue. | |
3959 | The GNU assembler emits separate line notes for each instruction | |
3960 | in a multi-instruction macro, but compilers generally will not | |
3961 | do this. */ | |
3962 | if (prologue_sal.symtab->language != language_asm) | |
3963 | { | |
8435453b | 3964 | struct linetable *linetable = SYMTAB_LINETABLE (prologue_sal.symtab); |
f1f58506 DE |
3965 | int idx = 0; |
3966 | ||
3967 | /* Skip any earlier lines, and any end-of-sequence marker | |
3968 | from a previous function. */ | |
3969 | while (linetable->item[idx].pc != prologue_sal.pc | |
3970 | || linetable->item[idx].line == 0) | |
3971 | idx++; | |
3972 | ||
3973 | if (idx+1 < linetable->nitems | |
3974 | && linetable->item[idx+1].line != 0 | |
3975 | && linetable->item[idx+1].pc == start_pc) | |
3976 | return start_pc; | |
3977 | } | |
3978 | ||
3979 | /* If there is only one sal that covers the entire function, | |
3980 | then it is probably a single line function, like | |
3981 | "foo(){}". */ | |
3982 | if (prologue_sal.end >= end_pc) | |
3983 | return 0; | |
3984 | ||
3985 | while (prologue_sal.end < end_pc) | |
3986 | { | |
3987 | struct symtab_and_line sal; | |
3988 | ||
3989 | sal = find_pc_line (prologue_sal.end, 0); | |
3990 | if (sal.line == 0) | |
3991 | break; | |
3992 | /* Assume that a consecutive SAL for the same (or larger) | |
3993 | line mark the prologue -> body transition. */ | |
3994 | if (sal.line >= prologue_sal.line) | |
3995 | break; | |
3996 | /* Likewise if we are in a different symtab altogether | |
3997 | (e.g. within a file included via #include). */ | |
3998 | if (sal.symtab != prologue_sal.symtab) | |
3999 | break; | |
4000 | ||
4001 | /* The line number is smaller. Check that it's from the | |
4002 | same function, not something inlined. If it's inlined, | |
4003 | then there is no point comparing the line numbers. */ | |
4004 | bl = block_for_pc (prologue_sal.end); | |
4005 | while (bl) | |
4006 | { | |
4007 | if (block_inlined_p (bl)) | |
4008 | break; | |
4009 | if (BLOCK_FUNCTION (bl)) | |
4010 | { | |
4011 | bl = NULL; | |
4012 | break; | |
4013 | } | |
4014 | bl = BLOCK_SUPERBLOCK (bl); | |
4015 | } | |
4016 | if (bl != NULL) | |
4017 | break; | |
4018 | ||
4019 | /* The case in which compiler's optimizer/scheduler has | |
4020 | moved instructions into the prologue. We look ahead in | |
4021 | the function looking for address ranges whose | |
4022 | corresponding line number is less the first one that we | |
4023 | found for the function. This is more conservative then | |
4024 | refine_prologue_limit which scans a large number of SALs | |
4025 | looking for any in the prologue. */ | |
4026 | prologue_sal = sal; | |
4027 | } | |
4028 | } | |
4029 | ||
4030 | if (prologue_sal.end < end_pc) | |
4031 | /* Return the end of this line, or zero if we could not find a | |
4032 | line. */ | |
4033 | return prologue_sal.end; | |
4034 | else | |
4035 | /* Don't return END_PC, which is past the end of the function. */ | |
4036 | return prologue_sal.pc; | |
4037 | } | |
bf223d3e PA |
4038 | |
4039 | /* See symtab.h. */ | |
4040 | ||
4041 | symbol * | |
4042 | find_function_alias_target (bound_minimal_symbol msymbol) | |
4043 | { | |
4024cf2b PA |
4044 | CORE_ADDR func_addr; |
4045 | if (!msymbol_is_function (msymbol.objfile, msymbol.minsym, &func_addr)) | |
bf223d3e PA |
4046 | return NULL; |
4047 | ||
4024cf2b | 4048 | symbol *sym = find_pc_function (func_addr); |
bf223d3e PA |
4049 | if (sym != NULL |
4050 | && SYMBOL_CLASS (sym) == LOC_BLOCK | |
2b1ffcfd | 4051 | && BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (sym)) == func_addr) |
bf223d3e PA |
4052 | return sym; |
4053 | ||
4054 | return NULL; | |
4055 | } | |
4056 | ||
f1f58506 | 4057 | \f |
c906108c SS |
4058 | /* If P is of the form "operator[ \t]+..." where `...' is |
4059 | some legitimate operator text, return a pointer to the | |
4060 | beginning of the substring of the operator text. | |
4061 | Otherwise, return "". */ | |
eca864fe | 4062 | |
96142726 TT |
4063 | static const char * |
4064 | operator_chars (const char *p, const char **end) | |
c906108c SS |
4065 | { |
4066 | *end = ""; | |
8090b426 | 4067 | if (!startswith (p, CP_OPERATOR_STR)) |
c906108c | 4068 | return *end; |
8090b426 | 4069 | p += CP_OPERATOR_LEN; |
c906108c SS |
4070 | |
4071 | /* Don't get faked out by `operator' being part of a longer | |
4072 | identifier. */ | |
c5aa993b | 4073 | if (isalpha (*p) || *p == '_' || *p == '$' || *p == '\0') |
c906108c SS |
4074 | return *end; |
4075 | ||
4076 | /* Allow some whitespace between `operator' and the operator symbol. */ | |
4077 | while (*p == ' ' || *p == '\t') | |
4078 | p++; | |
4079 | ||
c378eb4e | 4080 | /* Recognize 'operator TYPENAME'. */ |
c906108c | 4081 | |
c5aa993b | 4082 | if (isalpha (*p) || *p == '_' || *p == '$') |
c906108c | 4083 | { |
96142726 | 4084 | const char *q = p + 1; |
433759f7 | 4085 | |
c5aa993b | 4086 | while (isalnum (*q) || *q == '_' || *q == '$') |
c906108c SS |
4087 | q++; |
4088 | *end = q; | |
4089 | return p; | |
4090 | } | |
4091 | ||
53e8ad3d MS |
4092 | while (*p) |
4093 | switch (*p) | |
4094 | { | |
4095 | case '\\': /* regexp quoting */ | |
4096 | if (p[1] == '*') | |
4097 | { | |
3e43a32a | 4098 | if (p[2] == '=') /* 'operator\*=' */ |
53e8ad3d MS |
4099 | *end = p + 3; |
4100 | else /* 'operator\*' */ | |
4101 | *end = p + 2; | |
4102 | return p; | |
4103 | } | |
4104 | else if (p[1] == '[') | |
4105 | { | |
4106 | if (p[2] == ']') | |
3e43a32a MS |
4107 | error (_("mismatched quoting on brackets, " |
4108 | "try 'operator\\[\\]'")); | |
53e8ad3d MS |
4109 | else if (p[2] == '\\' && p[3] == ']') |
4110 | { | |
4111 | *end = p + 4; /* 'operator\[\]' */ | |
4112 | return p; | |
4113 | } | |
4114 | else | |
8a3fe4f8 | 4115 | error (_("nothing is allowed between '[' and ']'")); |
53e8ad3d | 4116 | } |
9af17804 | 4117 | else |
53e8ad3d | 4118 | { |
85102364 | 4119 | /* Gratuitous quote: skip it and move on. */ |
53e8ad3d MS |
4120 | p++; |
4121 | continue; | |
4122 | } | |
4123 | break; | |
4124 | case '!': | |
4125 | case '=': | |
4126 | case '*': | |
4127 | case '/': | |
4128 | case '%': | |
4129 | case '^': | |
4130 | if (p[1] == '=') | |
4131 | *end = p + 2; | |
4132 | else | |
4133 | *end = p + 1; | |
4134 | return p; | |
4135 | case '<': | |
4136 | case '>': | |
4137 | case '+': | |
4138 | case '-': | |
4139 | case '&': | |
4140 | case '|': | |
4141 | if (p[0] == '-' && p[1] == '>') | |
4142 | { | |
c378eb4e | 4143 | /* Struct pointer member operator 'operator->'. */ |
53e8ad3d MS |
4144 | if (p[2] == '*') |
4145 | { | |
4146 | *end = p + 3; /* 'operator->*' */ | |
4147 | return p; | |
4148 | } | |
4149 | else if (p[2] == '\\') | |
4150 | { | |
4151 | *end = p + 4; /* Hopefully 'operator->\*' */ | |
4152 | return p; | |
4153 | } | |
4154 | else | |
4155 | { | |
4156 | *end = p + 2; /* 'operator->' */ | |
4157 | return p; | |
4158 | } | |
4159 | } | |
4160 | if (p[1] == '=' || p[1] == p[0]) | |
4161 | *end = p + 2; | |
4162 | else | |
4163 | *end = p + 1; | |
4164 | return p; | |
4165 | case '~': | |
4166 | case ',': | |
c5aa993b | 4167 | *end = p + 1; |
53e8ad3d MS |
4168 | return p; |
4169 | case '(': | |
4170 | if (p[1] != ')') | |
3e43a32a MS |
4171 | error (_("`operator ()' must be specified " |
4172 | "without whitespace in `()'")); | |
c5aa993b | 4173 | *end = p + 2; |
53e8ad3d MS |
4174 | return p; |
4175 | case '?': | |
4176 | if (p[1] != ':') | |
3e43a32a MS |
4177 | error (_("`operator ?:' must be specified " |
4178 | "without whitespace in `?:'")); | |
53e8ad3d MS |
4179 | *end = p + 2; |
4180 | return p; | |
4181 | case '[': | |
4182 | if (p[1] != ']') | |
3e43a32a MS |
4183 | error (_("`operator []' must be specified " |
4184 | "without whitespace in `[]'")); | |
53e8ad3d MS |
4185 | *end = p + 2; |
4186 | return p; | |
4187 | default: | |
8a3fe4f8 | 4188 | error (_("`operator %s' not supported"), p); |
53e8ad3d MS |
4189 | break; |
4190 | } | |
4191 | ||
c906108c SS |
4192 | *end = ""; |
4193 | return *end; | |
4194 | } | |
c906108c | 4195 | \f |
c5aa993b | 4196 | |
28cd9371 PW |
4197 | /* What part to match in a file name. */ |
4198 | ||
4199 | struct filename_partial_match_opts | |
4200 | { | |
4201 | /* Only match the directory name part. */ | |
491144b5 | 4202 | bool dirname = false; |
28cd9371 PW |
4203 | |
4204 | /* Only match the basename part. */ | |
491144b5 | 4205 | bool basename = false; |
28cd9371 PW |
4206 | }; |
4207 | ||
9fdc877b DE |
4208 | /* Data structure to maintain printing state for output_source_filename. */ |
4209 | ||
4210 | struct output_source_filename_data | |
4211 | { | |
28cd9371 PW |
4212 | /* Output only filenames matching REGEXP. */ |
4213 | std::string regexp; | |
4214 | gdb::optional<compiled_regex> c_regexp; | |
4215 | /* Possibly only match a part of the filename. */ | |
4216 | filename_partial_match_opts partial_match; | |
4217 | ||
4218 | ||
9fdc877b DE |
4219 | /* Cache of what we've seen so far. */ |
4220 | struct filename_seen_cache *filename_seen_cache; | |
4221 | ||
4222 | /* Flag of whether we're printing the first one. */ | |
4223 | int first; | |
4224 | }; | |
4225 | ||
c94fdfd0 | 4226 | /* Slave routine for sources_info. Force line breaks at ,'s. |
9fdc877b DE |
4227 | NAME is the name to print. |
4228 | DATA contains the state for printing and watching for duplicates. */ | |
eca864fe | 4229 | |
c94fdfd0 | 4230 | static void |
9fdc877b DE |
4231 | output_source_filename (const char *name, |
4232 | struct output_source_filename_data *data) | |
c94fdfd0 EZ |
4233 | { |
4234 | /* Since a single source file can result in several partial symbol | |
4235 | tables, we need to avoid printing it more than once. Note: if | |
4236 | some of the psymtabs are read in and some are not, it gets | |
4237 | printed both under "Source files for which symbols have been | |
4238 | read" and "Source files for which symbols will be read in on | |
4239 | demand". I consider this a reasonable way to deal with the | |
4240 | situation. I'm not sure whether this can also happen for | |
4241 | symtabs; it doesn't hurt to check. */ | |
4242 | ||
4243 | /* Was NAME already seen? */ | |
bbf2f4df | 4244 | if (data->filename_seen_cache->seen (name)) |
c94fdfd0 EZ |
4245 | { |
4246 | /* Yes; don't print it again. */ | |
4247 | return; | |
4248 | } | |
9fdc877b | 4249 | |
28cd9371 PW |
4250 | /* Does it match data->regexp? */ |
4251 | if (data->c_regexp.has_value ()) | |
4252 | { | |
4253 | const char *to_match; | |
4254 | std::string dirname; | |
4255 | ||
4256 | if (data->partial_match.dirname) | |
4257 | { | |
4258 | dirname = ldirname (name); | |
4259 | to_match = dirname.c_str (); | |
4260 | } | |
4261 | else if (data->partial_match.basename) | |
4262 | to_match = lbasename (name); | |
4263 | else | |
4264 | to_match = name; | |
4265 | ||
4266 | if (data->c_regexp->exec (to_match, 0, NULL, 0) != 0) | |
4267 | return; | |
4268 | } | |
4269 | ||
4270 | /* Print it and reset *FIRST. */ | |
9fdc877b DE |
4271 | if (! data->first) |
4272 | printf_filtered (", "); | |
4273 | data->first = 0; | |
c906108c SS |
4274 | |
4275 | wrap_here (""); | |
1ed9f74e | 4276 | fputs_styled (name, file_name_style.style (), gdb_stdout); |
c5aa993b | 4277 | } |
c906108c | 4278 | |
ccefe4c4 | 4279 | /* A callback for map_partial_symbol_filenames. */ |
eca864fe | 4280 | |
ccefe4c4 | 4281 | static void |
533a737e | 4282 | output_partial_symbol_filename (const char *filename, const char *fullname, |
ccefe4c4 TT |
4283 | void *data) |
4284 | { | |
19ba03f4 SM |
4285 | output_source_filename (fullname ? fullname : filename, |
4286 | (struct output_source_filename_data *) data); | |
ccefe4c4 TT |
4287 | } |
4288 | ||
28cd9371 PW |
4289 | using isrc_flag_option_def |
4290 | = gdb::option::flag_option_def<filename_partial_match_opts>; | |
4291 | ||
4292 | static const gdb::option::option_def info_sources_option_defs[] = { | |
4293 | ||
4294 | isrc_flag_option_def { | |
4295 | "dirname", | |
4296 | [] (filename_partial_match_opts *opts) { return &opts->dirname; }, | |
4297 | N_("Show only the files having a dirname matching REGEXP."), | |
4298 | }, | |
4299 | ||
4300 | isrc_flag_option_def { | |
4301 | "basename", | |
4302 | [] (filename_partial_match_opts *opts) { return &opts->basename; }, | |
4303 | N_("Show only the files having a basename matching REGEXP."), | |
4304 | }, | |
4305 | ||
4306 | }; | |
4307 | ||
4308 | /* Create an option_def_group for the "info sources" options, with | |
4309 | ISRC_OPTS as context. */ | |
4310 | ||
4311 | static inline gdb::option::option_def_group | |
4312 | make_info_sources_options_def_group (filename_partial_match_opts *isrc_opts) | |
4313 | { | |
4314 | return {{info_sources_option_defs}, isrc_opts}; | |
4315 | } | |
4316 | ||
4317 | /* Prints the header message for the source files that will be printed | |
4318 | with the matching info present in DATA. SYMBOL_MSG is a message | |
4319 | that tells what will or has been done with the symbols of the | |
4320 | matching source files. */ | |
4321 | ||
c906108c | 4322 | static void |
28cd9371 PW |
4323 | print_info_sources_header (const char *symbol_msg, |
4324 | const struct output_source_filename_data *data) | |
4325 | { | |
4326 | puts_filtered (symbol_msg); | |
4327 | if (!data->regexp.empty ()) | |
4328 | { | |
4329 | if (data->partial_match.dirname) | |
4330 | printf_filtered (_("(dirname matching regular expression \"%s\")"), | |
4331 | data->regexp.c_str ()); | |
4332 | else if (data->partial_match.basename) | |
4333 | printf_filtered (_("(basename matching regular expression \"%s\")"), | |
4334 | data->regexp.c_str ()); | |
4335 | else | |
4336 | printf_filtered (_("(filename matching regular expression \"%s\")"), | |
4337 | data->regexp.c_str ()); | |
4338 | } | |
4339 | puts_filtered ("\n"); | |
4340 | } | |
4341 | ||
4342 | /* Completer for "info sources". */ | |
4343 | ||
4344 | static void | |
4345 | info_sources_command_completer (cmd_list_element *ignore, | |
4346 | completion_tracker &tracker, | |
4347 | const char *text, const char *word) | |
4348 | { | |
4349 | const auto group = make_info_sources_options_def_group (nullptr); | |
4350 | if (gdb::option::complete_options | |
4351 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
4352 | return; | |
4353 | } | |
4354 | ||
4355 | static void | |
4356 | info_sources_command (const char *args, int from_tty) | |
c906108c | 4357 | { |
9fdc877b | 4358 | struct output_source_filename_data data; |
c5aa993b | 4359 | |
c906108c SS |
4360 | if (!have_full_symbols () && !have_partial_symbols ()) |
4361 | { | |
8a3fe4f8 | 4362 | error (_("No symbol table is loaded. Use the \"file\" command.")); |
c906108c | 4363 | } |
c5aa993b | 4364 | |
bbf2f4df PA |
4365 | filename_seen_cache filenames_seen; |
4366 | ||
28cd9371 PW |
4367 | auto group = make_info_sources_options_def_group (&data.partial_match); |
4368 | ||
4369 | gdb::option::process_options | |
4370 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_ERROR, group); | |
9fdc877b | 4371 | |
28cd9371 PW |
4372 | if (args != NULL && *args != '\000') |
4373 | data.regexp = args; | |
c906108c | 4374 | |
28cd9371 | 4375 | data.filename_seen_cache = &filenames_seen; |
9fdc877b | 4376 | data.first = 1; |
28cd9371 PW |
4377 | |
4378 | if (data.partial_match.dirname && data.partial_match.basename) | |
4379 | error (_("You cannot give both -basename and -dirname to 'info sources'.")); | |
4380 | if ((data.partial_match.dirname || data.partial_match.basename) | |
4381 | && data.regexp.empty ()) | |
4382 | error (_("Missing REGEXP for 'info sources'.")); | |
4383 | ||
4384 | if (data.regexp.empty ()) | |
4385 | data.c_regexp.reset (); | |
4386 | else | |
4387 | { | |
4388 | int cflags = REG_NOSUB; | |
4389 | #ifdef HAVE_CASE_INSENSITIVE_FILE_SYSTEM | |
4390 | cflags |= REG_ICASE; | |
4391 | #endif | |
4392 | data.c_regexp.emplace (data.regexp.c_str (), cflags, | |
4393 | _("Invalid regexp")); | |
4394 | } | |
4395 | ||
4396 | print_info_sources_header | |
4397 | (_("Source files for which symbols have been read in:\n"), &data); | |
4398 | ||
2030c079 | 4399 | for (objfile *objfile : current_program_space->objfiles ()) |
8b31193a | 4400 | { |
b669c953 | 4401 | for (compunit_symtab *cu : objfile->compunits ()) |
8b31193a TT |
4402 | { |
4403 | for (symtab *s : compunit_filetabs (cu)) | |
4404 | { | |
4405 | const char *fullname = symtab_to_fullname (s); | |
433759f7 | 4406 | |
8b31193a TT |
4407 | output_source_filename (fullname, &data); |
4408 | } | |
4409 | } | |
4410 | } | |
c906108c | 4411 | printf_filtered ("\n\n"); |
c5aa993b | 4412 | |
28cd9371 PW |
4413 | print_info_sources_header |
4414 | (_("Source files for which symbols will be read in on demand:\n"), &data); | |
c906108c | 4415 | |
bbf2f4df | 4416 | filenames_seen.clear (); |
9fdc877b | 4417 | data.first = 1; |
bb4142cf DE |
4418 | map_symbol_filenames (output_partial_symbol_filename, &data, |
4419 | 1 /*need_fullname*/); | |
c906108c SS |
4420 | printf_filtered ("\n"); |
4421 | } | |
4422 | ||
470c0b1c AB |
4423 | /* Compare FILE against all the entries of FILENAMES. If BASENAMES is |
4424 | true compare only lbasename of FILENAMES. */ | |
fbd9ab74 | 4425 | |
470c0b1c AB |
4426 | static bool |
4427 | file_matches (const char *file, const std::vector<const char *> &filenames, | |
4428 | bool basenames) | |
c906108c | 4429 | { |
470c0b1c AB |
4430 | if (filenames.empty ()) |
4431 | return true; | |
c906108c | 4432 | |
470c0b1c | 4433 | for (const char *name : filenames) |
c906108c | 4434 | { |
470c0b1c AB |
4435 | name = (basenames ? lbasename (name) : name); |
4436 | if (compare_filenames_for_search (file, name)) | |
4437 | return true; | |
c906108c | 4438 | } |
470c0b1c AB |
4439 | |
4440 | return false; | |
c906108c SS |
4441 | } |
4442 | ||
f97a63c5 AB |
4443 | /* Helper function for std::sort on symbol_search objects. Can only sort |
4444 | symbols, not minimal symbols. */ | |
eca864fe | 4445 | |
b9c04fb2 TT |
4446 | int |
4447 | symbol_search::compare_search_syms (const symbol_search &sym_a, | |
4448 | const symbol_search &sym_b) | |
434d2d4f | 4449 | { |
b52109bc DE |
4450 | int c; |
4451 | ||
b9c04fb2 TT |
4452 | c = FILENAME_CMP (symbol_symtab (sym_a.symbol)->filename, |
4453 | symbol_symtab (sym_b.symbol)->filename); | |
b52109bc DE |
4454 | if (c != 0) |
4455 | return c; | |
434d2d4f | 4456 | |
b9c04fb2 TT |
4457 | if (sym_a.block != sym_b.block) |
4458 | return sym_a.block - sym_b.block; | |
b52109bc | 4459 | |
987012b8 | 4460 | return strcmp (sym_a.symbol->print_name (), sym_b.symbol->print_name ()); |
434d2d4f DJ |
4461 | } |
4462 | ||
12615cba PW |
4463 | /* Returns true if the type_name of symbol_type of SYM matches TREG. |
4464 | If SYM has no symbol_type or symbol_name, returns false. */ | |
4465 | ||
4466 | bool | |
4467 | treg_matches_sym_type_name (const compiled_regex &treg, | |
4468 | const struct symbol *sym) | |
4469 | { | |
4470 | struct type *sym_type; | |
4471 | std::string printed_sym_type_name; | |
4472 | ||
4473 | if (symbol_lookup_debug > 1) | |
4474 | { | |
4475 | fprintf_unfiltered (gdb_stdlog, | |
4476 | "treg_matches_sym_type_name\n sym %s\n", | |
987012b8 | 4477 | sym->natural_name ()); |
12615cba PW |
4478 | } |
4479 | ||
4480 | sym_type = SYMBOL_TYPE (sym); | |
4481 | if (sym_type == NULL) | |
4482 | return false; | |
4483 | ||
43d397ca PW |
4484 | { |
4485 | scoped_switch_to_sym_language_if_auto l (sym); | |
12615cba | 4486 | |
12615cba | 4487 | printed_sym_type_name = type_to_string (sym_type); |
43d397ca PW |
4488 | } |
4489 | ||
12615cba PW |
4490 | |
4491 | if (symbol_lookup_debug > 1) | |
4492 | { | |
4493 | fprintf_unfiltered (gdb_stdlog, | |
4494 | " sym_type_name %s\n", | |
4495 | printed_sym_type_name.c_str ()); | |
4496 | } | |
4497 | ||
4498 | ||
4499 | if (printed_sym_type_name.empty ()) | |
4500 | return false; | |
4501 | ||
4502 | return treg.exec (printed_sym_type_name.c_str (), 0, NULL, 0) == 0; | |
4503 | } | |
4504 | ||
f97a63c5 AB |
4505 | /* See symtab.h. */ |
4506 | ||
4507 | bool | |
4508 | global_symbol_searcher::is_suitable_msymbol | |
4509 | (const enum search_domain kind, const minimal_symbol *msymbol) | |
4510 | { | |
4511 | switch (MSYMBOL_TYPE (msymbol)) | |
4512 | { | |
4513 | case mst_data: | |
4514 | case mst_bss: | |
4515 | case mst_file_data: | |
4516 | case mst_file_bss: | |
4517 | return kind == VARIABLES_DOMAIN; | |
4518 | case mst_text: | |
4519 | case mst_file_text: | |
4520 | case mst_solib_trampoline: | |
4521 | case mst_text_gnu_ifunc: | |
4522 | return kind == FUNCTIONS_DOMAIN; | |
4523 | default: | |
4524 | return false; | |
4525 | } | |
4526 | } | |
4527 | ||
4528 | /* See symtab.h. */ | |
4529 | ||
4530 | bool | |
4531 | global_symbol_searcher::expand_symtabs | |
4532 | (objfile *objfile, const gdb::optional<compiled_regex> &preg) const | |
4533 | { | |
4534 | enum search_domain kind = m_kind; | |
4535 | bool found_msymbol = false; | |
4536 | ||
4537 | if (objfile->sf) | |
4538 | objfile->sf->qf->expand_symtabs_matching | |
4539 | (objfile, | |
4540 | [&] (const char *filename, bool basenames) | |
4541 | { | |
4542 | return file_matches (filename, filenames, basenames); | |
4543 | }, | |
c1a66c06 | 4544 | &lookup_name_info::match_any (), |
f97a63c5 AB |
4545 | [&] (const char *symname) |
4546 | { | |
4547 | return (!preg.has_value () | |
4548 | || preg->exec (symname, 0, NULL, 0) == 0); | |
4549 | }, | |
4550 | NULL, | |
4551 | kind); | |
4552 | ||
4553 | /* Here, we search through the minimal symbol tables for functions and | |
4554 | variables that match, and force their symbols to be read. This is in | |
4555 | particular necessary for demangled variable names, which are no longer | |
4556 | put into the partial symbol tables. The symbol will then be found | |
4557 | during the scan of symtabs later. | |
4558 | ||
4559 | For functions, find_pc_symtab should succeed if we have debug info for | |
4560 | the function, for variables we have to call | |
4561 | lookup_symbol_in_objfile_from_linkage_name to determine if the | |
4562 | variable has debug info. If the lookup fails, set found_msymbol so | |
4563 | that we will rescan to print any matching symbols without debug info. | |
4564 | We only search the objfile the msymbol came from, we no longer search | |
4565 | all objfiles. In large programs (1000s of shared libs) searching all | |
4566 | objfiles is not worth the pain. */ | |
4567 | if (filenames.empty () | |
4568 | && (kind == VARIABLES_DOMAIN || kind == FUNCTIONS_DOMAIN)) | |
4569 | { | |
4570 | for (minimal_symbol *msymbol : objfile->msymbols ()) | |
4571 | { | |
4572 | QUIT; | |
4573 | ||
4574 | if (msymbol->created_by_gdb) | |
4575 | continue; | |
4576 | ||
4577 | if (is_suitable_msymbol (kind, msymbol)) | |
4578 | { | |
4579 | if (!preg.has_value () | |
4580 | || preg->exec (msymbol->natural_name (), 0, | |
4581 | NULL, 0) == 0) | |
4582 | { | |
4583 | /* An important side-effect of these lookup functions is | |
4584 | to expand the symbol table if msymbol is found, later | |
4585 | in the process we will add matching symbols or | |
4586 | msymbols to the results list, and that requires that | |
4587 | the symbols tables are expanded. */ | |
4588 | if (kind == FUNCTIONS_DOMAIN | |
4589 | ? (find_pc_compunit_symtab | |
4590 | (MSYMBOL_VALUE_ADDRESS (objfile, msymbol)) | |
4591 | == NULL) | |
4592 | : (lookup_symbol_in_objfile_from_linkage_name | |
4593 | (objfile, msymbol->linkage_name (), | |
4594 | VAR_DOMAIN) | |
4595 | .symbol == NULL)) | |
4596 | found_msymbol = true; | |
4597 | } | |
4598 | } | |
4599 | } | |
4600 | } | |
4601 | ||
4602 | return found_msymbol; | |
4603 | } | |
4604 | ||
4605 | /* See symtab.h. */ | |
4606 | ||
c2512106 | 4607 | bool |
f97a63c5 AB |
4608 | global_symbol_searcher::add_matching_symbols |
4609 | (objfile *objfile, | |
4610 | const gdb::optional<compiled_regex> &preg, | |
4611 | const gdb::optional<compiled_regex> &treg, | |
c2512106 | 4612 | std::set<symbol_search> *result_set) const |
f97a63c5 AB |
4613 | { |
4614 | enum search_domain kind = m_kind; | |
4615 | ||
4616 | /* Add matching symbols (if not already present). */ | |
4617 | for (compunit_symtab *cust : objfile->compunits ()) | |
4618 | { | |
4619 | const struct blockvector *bv = COMPUNIT_BLOCKVECTOR (cust); | |
4620 | ||
4621 | for (block_enum block : { GLOBAL_BLOCK, STATIC_BLOCK }) | |
4622 | { | |
4623 | struct block_iterator iter; | |
4624 | struct symbol *sym; | |
4625 | const struct block *b = BLOCKVECTOR_BLOCK (bv, block); | |
4626 | ||
4627 | ALL_BLOCK_SYMBOLS (b, iter, sym) | |
4628 | { | |
4629 | struct symtab *real_symtab = symbol_symtab (sym); | |
4630 | ||
4631 | QUIT; | |
4632 | ||
4633 | /* Check first sole REAL_SYMTAB->FILENAME. It does | |
4634 | not need to be a substring of symtab_to_fullname as | |
4635 | it may contain "./" etc. */ | |
4636 | if ((file_matches (real_symtab->filename, filenames, false) | |
4637 | || ((basenames_may_differ | |
4638 | || file_matches (lbasename (real_symtab->filename), | |
4639 | filenames, true)) | |
4640 | && file_matches (symtab_to_fullname (real_symtab), | |
4641 | filenames, false))) | |
4642 | && ((!preg.has_value () | |
4643 | || preg->exec (sym->natural_name (), 0, | |
4644 | NULL, 0) == 0) | |
4645 | && ((kind == VARIABLES_DOMAIN | |
4646 | && SYMBOL_CLASS (sym) != LOC_TYPEDEF | |
4647 | && SYMBOL_CLASS (sym) != LOC_UNRESOLVED | |
4648 | && SYMBOL_CLASS (sym) != LOC_BLOCK | |
4649 | /* LOC_CONST can be used for more than | |
4650 | just enums, e.g., c++ static const | |
4651 | members. We only want to skip enums | |
4652 | here. */ | |
4653 | && !(SYMBOL_CLASS (sym) == LOC_CONST | |
78134374 | 4654 | && (SYMBOL_TYPE (sym)->code () |
f97a63c5 AB |
4655 | == TYPE_CODE_ENUM)) |
4656 | && (!treg.has_value () | |
4657 | || treg_matches_sym_type_name (*treg, sym))) | |
4658 | || (kind == FUNCTIONS_DOMAIN | |
4659 | && SYMBOL_CLASS (sym) == LOC_BLOCK | |
4660 | && (!treg.has_value () | |
4661 | || treg_matches_sym_type_name (*treg, | |
4662 | sym))) | |
4663 | || (kind == TYPES_DOMAIN | |
4664 | && SYMBOL_CLASS (sym) == LOC_TYPEDEF | |
4665 | && SYMBOL_DOMAIN (sym) != MODULE_DOMAIN) | |
4666 | || (kind == MODULES_DOMAIN | |
4667 | && SYMBOL_DOMAIN (sym) == MODULE_DOMAIN | |
4668 | && SYMBOL_LINE (sym) != 0)))) | |
4669 | { | |
c2512106 AB |
4670 | if (result_set->size () < m_max_search_results) |
4671 | { | |
4672 | /* Match, insert if not already in the results. */ | |
4673 | symbol_search ss (block, sym); | |
4674 | if (result_set->find (ss) == result_set->end ()) | |
4675 | result_set->insert (ss); | |
4676 | } | |
4677 | else | |
4678 | return false; | |
f97a63c5 AB |
4679 | } |
4680 | } | |
4681 | } | |
4682 | } | |
c2512106 AB |
4683 | |
4684 | return true; | |
f97a63c5 AB |
4685 | } |
4686 | ||
4687 | /* See symtab.h. */ | |
4688 | ||
c2512106 | 4689 | bool |
f97a63c5 AB |
4690 | global_symbol_searcher::add_matching_msymbols |
4691 | (objfile *objfile, const gdb::optional<compiled_regex> &preg, | |
4692 | std::vector<symbol_search> *results) const | |
4693 | { | |
4694 | enum search_domain kind = m_kind; | |
4695 | ||
4696 | for (minimal_symbol *msymbol : objfile->msymbols ()) | |
4697 | { | |
4698 | QUIT; | |
4699 | ||
4700 | if (msymbol->created_by_gdb) | |
4701 | continue; | |
4702 | ||
4703 | if (is_suitable_msymbol (kind, msymbol)) | |
4704 | { | |
4705 | if (!preg.has_value () | |
4706 | || preg->exec (msymbol->natural_name (), 0, | |
4707 | NULL, 0) == 0) | |
4708 | { | |
4709 | /* For functions we can do a quick check of whether the | |
4710 | symbol might be found via find_pc_symtab. */ | |
4711 | if (kind != FUNCTIONS_DOMAIN | |
4712 | || (find_pc_compunit_symtab | |
4713 | (MSYMBOL_VALUE_ADDRESS (objfile, msymbol)) | |
4714 | == NULL)) | |
4715 | { | |
4716 | if (lookup_symbol_in_objfile_from_linkage_name | |
4717 | (objfile, msymbol->linkage_name (), | |
4718 | VAR_DOMAIN).symbol == NULL) | |
4719 | { | |
4720 | /* Matching msymbol, add it to the results list. */ | |
c2512106 AB |
4721 | if (results->size () < m_max_search_results) |
4722 | results->emplace_back (GLOBAL_BLOCK, msymbol, objfile); | |
4723 | else | |
4724 | return false; | |
f97a63c5 AB |
4725 | } |
4726 | } | |
4727 | } | |
4728 | } | |
4729 | } | |
12615cba | 4730 | |
c2512106 | 4731 | return true; |
434d2d4f | 4732 | } |
5bd98722 | 4733 | |
470c0b1c | 4734 | /* See symtab.h. */ |
c378eb4e | 4735 | |
b9c04fb2 | 4736 | std::vector<symbol_search> |
470c0b1c | 4737 | global_symbol_searcher::search () const |
c906108c | 4738 | { |
2d7cc5c7 | 4739 | gdb::optional<compiled_regex> preg; |
12615cba | 4740 | gdb::optional<compiled_regex> treg; |
c906108c | 4741 | |
470c0b1c | 4742 | gdb_assert (m_kind != ALL_DOMAIN); |
e8930875 | 4743 | |
470c0b1c | 4744 | if (m_symbol_name_regexp != NULL) |
c906108c | 4745 | { |
470c0b1c AB |
4746 | const char *symbol_name_regexp = m_symbol_name_regexp; |
4747 | ||
c906108c SS |
4748 | /* Make sure spacing is right for C++ operators. |
4749 | This is just a courtesy to make the matching less sensitive | |
4750 | to how many spaces the user leaves between 'operator' | |
c378eb4e | 4751 | and <TYPENAME> or <OPERATOR>. */ |
96142726 | 4752 | const char *opend; |
470c0b1c | 4753 | const char *opname = operator_chars (symbol_name_regexp, &opend); |
433759f7 | 4754 | |
c906108c | 4755 | if (*opname) |
c5aa993b | 4756 | { |
3e43a32a MS |
4757 | int fix = -1; /* -1 means ok; otherwise number of |
4758 | spaces needed. */ | |
433759f7 | 4759 | |
c5aa993b JM |
4760 | if (isalpha (*opname) || *opname == '_' || *opname == '$') |
4761 | { | |
c378eb4e | 4762 | /* There should 1 space between 'operator' and 'TYPENAME'. */ |
c5aa993b JM |
4763 | if (opname[-1] != ' ' || opname[-2] == ' ') |
4764 | fix = 1; | |
4765 | } | |
4766 | else | |
4767 | { | |
c378eb4e | 4768 | /* There should 0 spaces between 'operator' and 'OPERATOR'. */ |
c5aa993b JM |
4769 | if (opname[-1] == ' ') |
4770 | fix = 0; | |
4771 | } | |
c378eb4e | 4772 | /* If wrong number of spaces, fix it. */ |
c5aa993b JM |
4773 | if (fix >= 0) |
4774 | { | |
045f55a6 | 4775 | char *tmp = (char *) alloca (8 + fix + strlen (opname) + 1); |
433759f7 | 4776 | |
c5aa993b | 4777 | sprintf (tmp, "operator%.*s%s", fix, " ", opname); |
470c0b1c | 4778 | symbol_name_regexp = tmp; |
c5aa993b JM |
4779 | } |
4780 | } | |
4781 | ||
2d7cc5c7 PA |
4782 | int cflags = REG_NOSUB | (case_sensitivity == case_sensitive_off |
4783 | ? REG_ICASE : 0); | |
470c0b1c AB |
4784 | preg.emplace (symbol_name_regexp, cflags, |
4785 | _("Invalid regexp")); | |
c906108c SS |
4786 | } |
4787 | ||
470c0b1c | 4788 | if (m_symbol_type_regexp != NULL) |
12615cba PW |
4789 | { |
4790 | int cflags = REG_NOSUB | (case_sensitivity == case_sensitive_off | |
4791 | ? REG_ICASE : 0); | |
470c0b1c AB |
4792 | treg.emplace (m_symbol_type_regexp, cflags, |
4793 | _("Invalid regexp")); | |
12615cba PW |
4794 | } |
4795 | ||
f97a63c5 | 4796 | bool found_msymbol = false; |
c2512106 | 4797 | std::set<symbol_search> result_set; |
2030c079 | 4798 | for (objfile *objfile : current_program_space->objfiles ()) |
d8aeb77f | 4799 | { |
f97a63c5 AB |
4800 | /* Expand symtabs within objfile that possibly contain matching |
4801 | symbols. */ | |
4802 | found_msymbol |= expand_symtabs (objfile, preg); | |
4803 | ||
c2512106 AB |
4804 | /* Find matching symbols within OBJFILE and add them in to the |
4805 | RESULT_SET set. Use a set here so that we can easily detect | |
4806 | duplicates as we go, and can therefore track how many unique | |
4807 | matches we have found so far. */ | |
4808 | if (!add_matching_symbols (objfile, preg, treg, &result_set)) | |
4809 | break; | |
d8aeb77f | 4810 | } |
c906108c | 4811 | |
c2512106 AB |
4812 | /* Convert the result set into a sorted result list, as std::set is |
4813 | defined to be sorted then no explicit call to std::sort is needed. */ | |
4814 | std::vector<symbol_search> result (result_set.begin (), result_set.end ()); | |
b52109bc | 4815 | |
470c0b1c | 4816 | /* If there are no debug symbols, then add matching minsyms. But if the |
f97a63c5 AB |
4817 | user wants to see symbols matching a type regexp, then never give a |
4818 | minimal symbol, as we assume that a minimal symbol does not have a | |
4819 | type. */ | |
4820 | if ((found_msymbol || (filenames.empty () && m_kind == VARIABLES_DOMAIN)) | |
470c0b1c | 4821 | && !m_exclude_minsyms |
a8462bbf | 4822 | && !treg.has_value ()) |
c906108c | 4823 | { |
f97a63c5 | 4824 | gdb_assert (m_kind == VARIABLES_DOMAIN || m_kind == FUNCTIONS_DOMAIN); |
2030c079 | 4825 | for (objfile *objfile : current_program_space->objfiles ()) |
c2512106 AB |
4826 | if (!add_matching_msymbols (objfile, preg, &result)) |
4827 | break; | |
c906108c SS |
4828 | } |
4829 | ||
b9c04fb2 | 4830 | return result; |
c906108c SS |
4831 | } |
4832 | ||
5f512a7d | 4833 | /* See symtab.h. */ |
c378eb4e | 4834 | |
5f512a7d AB |
4835 | std::string |
4836 | symbol_to_info_string (struct symbol *sym, int block, | |
4837 | enum search_domain kind) | |
c906108c | 4838 | { |
5f512a7d | 4839 | std::string str; |
05cba821 | 4840 | |
5f512a7d | 4841 | gdb_assert (block == GLOBAL_BLOCK || block == STATIC_BLOCK); |
b744723f | 4842 | |
176620f1 | 4843 | if (kind != TYPES_DOMAIN && block == STATIC_BLOCK) |
5f512a7d | 4844 | str += "static "; |
c5aa993b | 4845 | |
c378eb4e | 4846 | /* Typedef that is not a C++ class. */ |
176620f1 EZ |
4847 | if (kind == TYPES_DOMAIN |
4848 | && SYMBOL_DOMAIN (sym) != STRUCT_DOMAIN) | |
eb86c5e2 | 4849 | { |
5f512a7d AB |
4850 | string_file tmp_stream; |
4851 | ||
eb86c5e2 AB |
4852 | /* FIXME: For C (and C++) we end up with a difference in output here |
4853 | between how a typedef is printed, and non-typedefs are printed. | |
4854 | The TYPEDEF_PRINT code places a ";" at the end in an attempt to | |
4855 | appear C-like, while TYPE_PRINT doesn't. | |
4856 | ||
4857 | For the struct printing case below, things are worse, we force | |
4858 | printing of the ";" in this function, which is going to be wrong | |
4859 | for languages that don't require a ";" between statements. */ | |
78134374 | 4860 | if (SYMBOL_TYPE (sym)->code () == TYPE_CODE_TYPEDEF) |
5f512a7d | 4861 | typedef_print (SYMBOL_TYPE (sym), sym, &tmp_stream); |
eb86c5e2 | 4862 | else |
5f512a7d AB |
4863 | type_print (SYMBOL_TYPE (sym), "", &tmp_stream, -1); |
4864 | str += tmp_stream.string (); | |
eb86c5e2 | 4865 | } |
c378eb4e | 4866 | /* variable, func, or typedef-that-is-c++-class. */ |
d50bd42b DE |
4867 | else if (kind < TYPES_DOMAIN |
4868 | || (kind == TYPES_DOMAIN | |
4869 | && SYMBOL_DOMAIN (sym) == STRUCT_DOMAIN)) | |
c906108c | 4870 | { |
5f512a7d AB |
4871 | string_file tmp_stream; |
4872 | ||
c906108c | 4873 | type_print (SYMBOL_TYPE (sym), |
c5aa993b | 4874 | (SYMBOL_CLASS (sym) == LOC_TYPEDEF |
987012b8 | 4875 | ? "" : sym->print_name ()), |
5f512a7d | 4876 | &tmp_stream, 0); |
c906108c | 4877 | |
5f512a7d AB |
4878 | str += tmp_stream.string (); |
4879 | str += ";"; | |
c906108c | 4880 | } |
59c35742 AB |
4881 | /* Printing of modules is currently done here, maybe at some future |
4882 | point we might want a language specific method to print the module | |
4883 | symbol so that we can customise the output more. */ | |
4884 | else if (kind == MODULES_DOMAIN) | |
5f512a7d AB |
4885 | str += sym->print_name (); |
4886 | ||
4887 | return str; | |
4888 | } | |
4889 | ||
4890 | /* Helper function for symbol info commands, for example 'info functions', | |
4891 | 'info variables', etc. KIND is the kind of symbol we searched for, and | |
4892 | BLOCK is the type of block the symbols was found in, either GLOBAL_BLOCK | |
4893 | or STATIC_BLOCK. SYM is the symbol we found. If LAST is not NULL, | |
4894 | print file and line number information for the symbol as well. Skip | |
4895 | printing the filename if it matches LAST. */ | |
4896 | ||
4897 | static void | |
4898 | print_symbol_info (enum search_domain kind, | |
4899 | struct symbol *sym, | |
4900 | int block, const char *last) | |
4901 | { | |
4902 | scoped_switch_to_sym_language_if_auto l (sym); | |
4903 | struct symtab *s = symbol_symtab (sym); | |
4904 | ||
4905 | if (last != NULL) | |
4906 | { | |
4907 | const char *s_filename = symtab_to_filename_for_display (s); | |
4908 | ||
4909 | if (filename_cmp (last, s_filename) != 0) | |
4910 | { | |
4911 | printf_filtered (_("\nFile %ps:\n"), | |
4912 | styled_string (file_name_style.style (), | |
4913 | s_filename)); | |
4914 | } | |
4915 | ||
4916 | if (SYMBOL_LINE (sym) != 0) | |
4917 | printf_filtered ("%d:\t", SYMBOL_LINE (sym)); | |
4918 | else | |
4919 | puts_filtered ("\t"); | |
4920 | } | |
4921 | ||
4922 | std::string str = symbol_to_info_string (sym, block, kind); | |
4923 | printf_filtered ("%s\n", str.c_str ()); | |
c906108c SS |
4924 | } |
4925 | ||
4926 | /* This help function for symtab_symbol_info() prints information | |
c378eb4e MS |
4927 | for non-debugging symbols to gdb_stdout. */ |
4928 | ||
c906108c | 4929 | static void |
7c7b6655 | 4930 | print_msymbol_info (struct bound_minimal_symbol msymbol) |
c906108c | 4931 | { |
08feed99 | 4932 | struct gdbarch *gdbarch = msymbol.objfile->arch (); |
3ac4495a MS |
4933 | char *tmp; |
4934 | ||
d80b854b | 4935 | if (gdbarch_addr_bit (gdbarch) <= 32) |
77e371c0 | 4936 | tmp = hex_string_custom (BMSYMBOL_VALUE_ADDRESS (msymbol) |
bb599908 PH |
4937 | & (CORE_ADDR) 0xffffffff, |
4938 | 8); | |
3ac4495a | 4939 | else |
77e371c0 | 4940 | tmp = hex_string_custom (BMSYMBOL_VALUE_ADDRESS (msymbol), |
bb599908 | 4941 | 16); |
6a831f06 PA |
4942 | |
4943 | ui_file_style sym_style = (msymbol.minsym->text_p () | |
4944 | ? function_name_style.style () | |
4945 | : ui_file_style ()); | |
4946 | ||
4947 | printf_filtered (_("%ps %ps\n"), | |
4948 | styled_string (address_style.style (), tmp), | |
c9d95fa3 | 4949 | styled_string (sym_style, msymbol.minsym->print_name ())); |
c906108c SS |
4950 | } |
4951 | ||
4952 | /* This is the guts of the commands "info functions", "info types", and | |
c378eb4e | 4953 | "info variables". It calls search_symbols to find all matches and then |
c906108c | 4954 | print_[m]symbol_info to print out some useful information about the |
c378eb4e MS |
4955 | matches. */ |
4956 | ||
c906108c | 4957 | static void |
4acfdd20 | 4958 | symtab_symbol_info (bool quiet, bool exclude_minsyms, |
12615cba PW |
4959 | const char *regexp, enum search_domain kind, |
4960 | const char *t_regexp, int from_tty) | |
c906108c | 4961 | { |
bc043ef3 | 4962 | static const char * const classnames[] = |
59c35742 | 4963 | {"variable", "function", "type", "module"}; |
c7dcbf88 | 4964 | const char *last_filename = ""; |
c906108c SS |
4965 | int first = 1; |
4966 | ||
59c35742 | 4967 | gdb_assert (kind != ALL_DOMAIN); |
e8930875 | 4968 | |
b16507e0 AB |
4969 | if (regexp != nullptr && *regexp == '\0') |
4970 | regexp = nullptr; | |
4971 | ||
470c0b1c AB |
4972 | global_symbol_searcher spec (kind, regexp); |
4973 | spec.set_symbol_type_regexp (t_regexp); | |
4974 | spec.set_exclude_minsyms (exclude_minsyms); | |
4975 | std::vector<symbol_search> symbols = spec.search (); | |
c906108c | 4976 | |
12615cba PW |
4977 | if (!quiet) |
4978 | { | |
4979 | if (regexp != NULL) | |
4980 | { | |
4981 | if (t_regexp != NULL) | |
4982 | printf_filtered | |
4983 | (_("All %ss matching regular expression \"%s\"" | |
0c95f9ed | 4984 | " with type matching regular expression \"%s\":\n"), |
12615cba PW |
4985 | classnames[kind], regexp, t_regexp); |
4986 | else | |
4987 | printf_filtered (_("All %ss matching regular expression \"%s\":\n"), | |
4988 | classnames[kind], regexp); | |
4989 | } | |
4990 | else | |
4991 | { | |
4992 | if (t_regexp != NULL) | |
4993 | printf_filtered | |
4994 | (_("All defined %ss" | |
0c95f9ed | 4995 | " with type matching regular expression \"%s\" :\n"), |
12615cba PW |
4996 | classnames[kind], t_regexp); |
4997 | else | |
4998 | printf_filtered (_("All defined %ss:\n"), classnames[kind]); | |
4999 | } | |
5000 | } | |
c906108c | 5001 | |
b9c04fb2 | 5002 | for (const symbol_search &p : symbols) |
c906108c SS |
5003 | { |
5004 | QUIT; | |
5005 | ||
b9c04fb2 | 5006 | if (p.msymbol.minsym != NULL) |
c5aa993b JM |
5007 | { |
5008 | if (first) | |
5009 | { | |
12615cba PW |
5010 | if (!quiet) |
5011 | printf_filtered (_("\nNon-debugging symbols:\n")); | |
c5aa993b JM |
5012 | first = 0; |
5013 | } | |
b9c04fb2 | 5014 | print_msymbol_info (p.msymbol); |
c5aa993b | 5015 | } |
c906108c | 5016 | else |
c5aa993b JM |
5017 | { |
5018 | print_symbol_info (kind, | |
b9c04fb2 TT |
5019 | p.symbol, |
5020 | p.block, | |
c5aa993b | 5021 | last_filename); |
d01060f0 | 5022 | last_filename |
b9c04fb2 | 5023 | = symtab_to_filename_for_display (symbol_symtab (p.symbol)); |
c5aa993b | 5024 | } |
c906108c | 5025 | } |
c906108c SS |
5026 | } |
5027 | ||
4acfdd20 AB |
5028 | /* Structure to hold the values of the options used by the 'info variables' |
5029 | and 'info functions' commands. These correspond to the -q, -t, and -n | |
5030 | options. */ | |
5031 | ||
095252be | 5032 | struct info_vars_funcs_options |
4acfdd20 | 5033 | { |
491144b5 CB |
5034 | bool quiet = false; |
5035 | bool exclude_minsyms = false; | |
4acfdd20 AB |
5036 | char *type_regexp = nullptr; |
5037 | ||
095252be | 5038 | ~info_vars_funcs_options () |
4acfdd20 AB |
5039 | { |
5040 | xfree (type_regexp); | |
5041 | } | |
5042 | }; | |
5043 | ||
5044 | /* The options used by the 'info variables' and 'info functions' | |
5045 | commands. */ | |
5046 | ||
095252be AT |
5047 | static const gdb::option::option_def info_vars_funcs_options_defs[] = { |
5048 | gdb::option::boolean_option_def<info_vars_funcs_options> { | |
4acfdd20 | 5049 | "q", |
095252be | 5050 | [] (info_vars_funcs_options *opt) { return &opt->quiet; }, |
4acfdd20 AB |
5051 | nullptr, /* show_cmd_cb */ |
5052 | nullptr /* set_doc */ | |
5053 | }, | |
5054 | ||
095252be | 5055 | gdb::option::boolean_option_def<info_vars_funcs_options> { |
4acfdd20 | 5056 | "n", |
095252be | 5057 | [] (info_vars_funcs_options *opt) { return &opt->exclude_minsyms; }, |
4acfdd20 AB |
5058 | nullptr, /* show_cmd_cb */ |
5059 | nullptr /* set_doc */ | |
5060 | }, | |
5061 | ||
095252be | 5062 | gdb::option::string_option_def<info_vars_funcs_options> { |
4acfdd20 | 5063 | "t", |
095252be AT |
5064 | [] (info_vars_funcs_options *opt) { return &opt->type_regexp; |
5065 | }, | |
4acfdd20 AB |
5066 | nullptr, /* show_cmd_cb */ |
5067 | nullptr /* set_doc */ | |
5068 | } | |
5069 | }; | |
5070 | ||
5071 | /* Returns the option group used by 'info variables' and 'info | |
5072 | functions'. */ | |
5073 | ||
5074 | static gdb::option::option_def_group | |
095252be | 5075 | make_info_vars_funcs_options_def_group (info_vars_funcs_options *opts) |
4acfdd20 | 5076 | { |
095252be | 5077 | return {{info_vars_funcs_options_defs}, opts}; |
4acfdd20 AB |
5078 | } |
5079 | ||
5080 | /* Command completer for 'info variables' and 'info functions'. */ | |
5081 | ||
5082 | static void | |
095252be AT |
5083 | info_vars_funcs_command_completer (struct cmd_list_element *ignore, |
5084 | completion_tracker &tracker, | |
5085 | const char *text, const char * /* word */) | |
4acfdd20 AB |
5086 | { |
5087 | const auto group | |
095252be | 5088 | = make_info_vars_funcs_options_def_group (nullptr); |
4acfdd20 AB |
5089 | if (gdb::option::complete_options |
5090 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
5091 | return; | |
5092 | ||
5093 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
5094 | symbol_completer (ignore, tracker, text, word); | |
5095 | } | |
5096 | ||
b16507e0 AB |
5097 | /* Implement the 'info variables' command. */ |
5098 | ||
0b39b52e | 5099 | static void |
12615cba | 5100 | info_variables_command (const char *args, int from_tty) |
0b39b52e | 5101 | { |
095252be AT |
5102 | info_vars_funcs_options opts; |
5103 | auto grp = make_info_vars_funcs_options_def_group (&opts); | |
4acfdd20 AB |
5104 | gdb::option::process_options |
5105 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5106 | if (args != nullptr && *args == '\0') | |
5107 | args = nullptr; | |
b16507e0 | 5108 | |
4acfdd20 | 5109 | symtab_symbol_info (opts.quiet, opts.exclude_minsyms, args, VARIABLES_DOMAIN, |
b16507e0 | 5110 | opts.type_regexp, from_tty); |
0b39b52e TT |
5111 | } |
5112 | ||
b16507e0 | 5113 | /* Implement the 'info functions' command. */ |
12615cba | 5114 | |
c906108c | 5115 | static void |
12615cba | 5116 | info_functions_command (const char *args, int from_tty) |
c906108c | 5117 | { |
095252be AT |
5118 | info_vars_funcs_options opts; |
5119 | ||
5120 | auto grp = make_info_vars_funcs_options_def_group (&opts); | |
4acfdd20 AB |
5121 | gdb::option::process_options |
5122 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5123 | if (args != nullptr && *args == '\0') | |
5124 | args = nullptr; | |
b16507e0 | 5125 | |
4acfdd20 AB |
5126 | symtab_symbol_info (opts.quiet, opts.exclude_minsyms, args, |
5127 | FUNCTIONS_DOMAIN, opts.type_regexp, from_tty); | |
c906108c SS |
5128 | } |
5129 | ||
a8eab7c6 AB |
5130 | /* Holds the -q option for the 'info types' command. */ |
5131 | ||
5132 | struct info_types_options | |
5133 | { | |
491144b5 | 5134 | bool quiet = false; |
a8eab7c6 AB |
5135 | }; |
5136 | ||
5137 | /* The options used by the 'info types' command. */ | |
5138 | ||
5139 | static const gdb::option::option_def info_types_options_defs[] = { | |
5140 | gdb::option::boolean_option_def<info_types_options> { | |
5141 | "q", | |
5142 | [] (info_types_options *opt) { return &opt->quiet; }, | |
5143 | nullptr, /* show_cmd_cb */ | |
5144 | nullptr /* set_doc */ | |
5145 | } | |
5146 | }; | |
5147 | ||
5148 | /* Returns the option group used by 'info types'. */ | |
5149 | ||
5150 | static gdb::option::option_def_group | |
5151 | make_info_types_options_def_group (info_types_options *opts) | |
5152 | { | |
5153 | return {{info_types_options_defs}, opts}; | |
5154 | } | |
5155 | ||
5156 | /* Implement the 'info types' command. */ | |
357e46e7 | 5157 | |
c906108c | 5158 | static void |
a8eab7c6 | 5159 | info_types_command (const char *args, int from_tty) |
c906108c | 5160 | { |
a8eab7c6 AB |
5161 | info_types_options opts; |
5162 | ||
5163 | auto grp = make_info_types_options_def_group (&opts); | |
5164 | gdb::option::process_options | |
5165 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5166 | if (args != nullptr && *args == '\0') | |
5167 | args = nullptr; | |
4acfdd20 | 5168 | symtab_symbol_info (opts.quiet, false, args, TYPES_DOMAIN, NULL, from_tty); |
a8eab7c6 AB |
5169 | } |
5170 | ||
5171 | /* Command completer for 'info types' command. */ | |
5172 | ||
5173 | static void | |
5174 | info_types_command_completer (struct cmd_list_element *ignore, | |
5175 | completion_tracker &tracker, | |
5176 | const char *text, const char * /* word */) | |
5177 | { | |
5178 | const auto group | |
5179 | = make_info_types_options_def_group (nullptr); | |
5180 | if (gdb::option::complete_options | |
5181 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
5182 | return; | |
5183 | ||
5184 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
5185 | symbol_completer (ignore, tracker, text, word); | |
c906108c SS |
5186 | } |
5187 | ||
59c35742 AB |
5188 | /* Implement the 'info modules' command. */ |
5189 | ||
5190 | static void | |
5191 | info_modules_command (const char *args, int from_tty) | |
5192 | { | |
5193 | info_types_options opts; | |
5194 | ||
5195 | auto grp = make_info_types_options_def_group (&opts); | |
5196 | gdb::option::process_options | |
5197 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5198 | if (args != nullptr && *args == '\0') | |
5199 | args = nullptr; | |
5200 | symtab_symbol_info (opts.quiet, true, args, MODULES_DOMAIN, NULL, | |
5201 | from_tty); | |
5202 | } | |
5203 | ||
c906108c | 5204 | static void |
0b39b52e | 5205 | rbreak_command (const char *regexp, int from_tty) |
c906108c | 5206 | { |
c80049d3 | 5207 | std::string string; |
470c0b1c | 5208 | const char *file_name = nullptr; |
c906108c | 5209 | |
470c0b1c | 5210 | if (regexp != nullptr) |
8bd10a10 | 5211 | { |
0b39b52e | 5212 | const char *colon = strchr (regexp, ':'); |
433759f7 | 5213 | |
2c074f49 HD |
5214 | /* Ignore the colon if it is part of a Windows drive. */ |
5215 | if (HAS_DRIVE_SPEC (regexp) | |
5216 | && (regexp[2] == '/' || regexp[2] == '\\')) | |
5217 | colon = strchr (STRIP_DRIVE_SPEC (regexp), ':'); | |
5218 | ||
8bd10a10 CM |
5219 | if (colon && *(colon + 1) != ':') |
5220 | { | |
5221 | int colon_index; | |
96142726 | 5222 | char *local_name; |
8bd10a10 CM |
5223 | |
5224 | colon_index = colon - regexp; | |
224c3ddb | 5225 | local_name = (char *) alloca (colon_index + 1); |
96142726 TT |
5226 | memcpy (local_name, regexp, colon_index); |
5227 | local_name[colon_index--] = 0; | |
5228 | while (isspace (local_name[colon_index])) | |
5229 | local_name[colon_index--] = 0; | |
5230 | file_name = local_name; | |
529480d0 | 5231 | regexp = skip_spaces (colon + 1); |
8bd10a10 CM |
5232 | } |
5233 | } | |
5234 | ||
470c0b1c AB |
5235 | global_symbol_searcher spec (FUNCTIONS_DOMAIN, regexp); |
5236 | if (file_name != nullptr) | |
5237 | spec.filenames.push_back (file_name); | |
5238 | std::vector<symbol_search> symbols = spec.search (); | |
c906108c | 5239 | |
c80049d3 | 5240 | scoped_rbreak_breakpoints finalize; |
b9c04fb2 | 5241 | for (const symbol_search &p : symbols) |
c906108c | 5242 | { |
b9c04fb2 | 5243 | if (p.msymbol.minsym == NULL) |
c5aa993b | 5244 | { |
b9c04fb2 | 5245 | struct symtab *symtab = symbol_symtab (p.symbol); |
d01060f0 | 5246 | const char *fullname = symtab_to_fullname (symtab); |
05cba821 | 5247 | |
c80049d3 | 5248 | string = string_printf ("%s:'%s'", fullname, |
987012b8 | 5249 | p.symbol->linkage_name ()); |
c80049d3 | 5250 | break_command (&string[0], from_tty); |
c7dcbf88 | 5251 | print_symbol_info (FUNCTIONS_DOMAIN, p.symbol, p.block, NULL); |
c5aa993b | 5252 | } |
c906108c | 5253 | else |
c5aa993b | 5254 | { |
c80049d3 | 5255 | string = string_printf ("'%s'", |
c9d95fa3 | 5256 | p.msymbol.minsym->linkage_name ()); |
6214f497 | 5257 | |
c80049d3 | 5258 | break_command (&string[0], from_tty); |
c5aa993b | 5259 | printf_filtered ("<function, no debug info> %s;\n", |
c9d95fa3 | 5260 | p.msymbol.minsym->print_name ()); |
c5aa993b | 5261 | } |
c906108c | 5262 | } |
c906108c | 5263 | } |
c906108c | 5264 | \f |
c5aa993b | 5265 | |
c62446b1 | 5266 | /* Evaluate if SYMNAME matches LOOKUP_NAME. */ |
1976171a JK |
5267 | |
5268 | static int | |
c62446b1 | 5269 | compare_symbol_name (const char *symbol_name, language symbol_language, |
b5ec771e | 5270 | const lookup_name_info &lookup_name, |
b5ec771e PA |
5271 | completion_match_result &match_res) |
5272 | { | |
d4c2a405 | 5273 | const language_defn *lang = language_def (symbol_language); |
1976171a | 5274 | |
b5ec771e | 5275 | symbol_name_matcher_ftype *name_match |
c9debfb9 | 5276 | = lang->get_symbol_name_matcher (lookup_name); |
1976171a | 5277 | |
a207cff2 | 5278 | return name_match (symbol_name, lookup_name, &match_res); |
1976171a JK |
5279 | } |
5280 | ||
b5ec771e | 5281 | /* See symtab.h. */ |
c906108c | 5282 | |
e08bd6c5 | 5283 | bool |
eb3ff9a5 | 5284 | completion_list_add_name (completion_tracker &tracker, |
b5ec771e | 5285 | language symbol_language, |
eb3ff9a5 | 5286 | const char *symname, |
b5ec771e | 5287 | const lookup_name_info &lookup_name, |
0d5cff50 | 5288 | const char *text, const char *word) |
c906108c | 5289 | { |
b5ec771e PA |
5290 | completion_match_result &match_res |
5291 | = tracker.reset_completion_match_result (); | |
5292 | ||
c378eb4e | 5293 | /* Clip symbols that cannot match. */ |
c62446b1 | 5294 | if (!compare_symbol_name (symname, symbol_language, lookup_name, match_res)) |
e08bd6c5 | 5295 | return false; |
c906108c | 5296 | |
b5ec771e PA |
5297 | /* Refresh SYMNAME from the match string. It's potentially |
5298 | different depending on language. (E.g., on Ada, the match may be | |
5299 | the encoded symbol name wrapped in "<>"). */ | |
5300 | symname = match_res.match.match (); | |
5301 | gdb_assert (symname != NULL); | |
5302 | ||
c906108c | 5303 | /* We have a match for a completion, so add SYMNAME to the current list |
c378eb4e | 5304 | of matches. Note that the name is moved to freshly malloc'd space. */ |
c906108c SS |
5305 | |
5306 | { | |
60a20c19 PA |
5307 | gdb::unique_xmalloc_ptr<char> completion |
5308 | = make_completion_match_str (symname, text, word); | |
ef0b411a | 5309 | |
a207cff2 PA |
5310 | /* Here we pass the match-for-lcd object to add_completion. Some |
5311 | languages match the user text against substrings of symbol | |
5312 | names in some cases. E.g., in C++, "b push_ba" completes to | |
5313 | "std::vector::push_back", "std::string::push_back", etc., and | |
5314 | in this case we want the completion lowest common denominator | |
5315 | to be "push_back" instead of "std::". */ | |
5316 | tracker.add_completion (std::move (completion), | |
a22ecf70 | 5317 | &match_res.match_for_lcd, text, word); |
c906108c | 5318 | } |
e08bd6c5 PA |
5319 | |
5320 | return true; | |
c906108c SS |
5321 | } |
5322 | ||
6da67eb1 PA |
5323 | /* completion_list_add_name wrapper for struct symbol. */ |
5324 | ||
5325 | static void | |
eb3ff9a5 PA |
5326 | completion_list_add_symbol (completion_tracker &tracker, |
5327 | symbol *sym, | |
b5ec771e | 5328 | const lookup_name_info &lookup_name, |
6da67eb1 PA |
5329 | const char *text, const char *word) |
5330 | { | |
e08bd6c5 PA |
5331 | if (!completion_list_add_name (tracker, sym->language (), |
5332 | sym->natural_name (), | |
5333 | lookup_name, text, word)) | |
5334 | return; | |
19a2740f AB |
5335 | |
5336 | /* C++ function symbols include the parameters within both the msymbol | |
5337 | name and the symbol name. The problem is that the msymbol name will | |
5338 | describe the parameters in the most basic way, with typedefs stripped | |
5339 | out, while the symbol name will represent the types as they appear in | |
5340 | the program. This means we will see duplicate entries in the | |
5341 | completion tracker. The following converts the symbol name back to | |
5342 | the msymbol name and removes the msymbol name from the completion | |
5343 | tracker. */ | |
5344 | if (sym->language () == language_cplus | |
5345 | && SYMBOL_DOMAIN (sym) == VAR_DOMAIN | |
5346 | && SYMBOL_CLASS (sym) == LOC_BLOCK) | |
5347 | { | |
5348 | /* The call to canonicalize returns the empty string if the input | |
5349 | string is already in canonical form, thanks to this we don't | |
5350 | remove the symbol we just added above. */ | |
596dc4ad | 5351 | gdb::unique_xmalloc_ptr<char> str |
19a2740f | 5352 | = cp_canonicalize_string_no_typedefs (sym->natural_name ()); |
596dc4ad TT |
5353 | if (str != nullptr) |
5354 | tracker.remove_completion (str.get ()); | |
19a2740f | 5355 | } |
6da67eb1 PA |
5356 | } |
5357 | ||
5358 | /* completion_list_add_name wrapper for struct minimal_symbol. */ | |
5359 | ||
5360 | static void | |
eb3ff9a5 PA |
5361 | completion_list_add_msymbol (completion_tracker &tracker, |
5362 | minimal_symbol *sym, | |
b5ec771e | 5363 | const lookup_name_info &lookup_name, |
6da67eb1 PA |
5364 | const char *text, const char *word) |
5365 | { | |
c1b5c1eb | 5366 | completion_list_add_name (tracker, sym->language (), |
c9d95fa3 | 5367 | sym->natural_name (), |
1b026119 | 5368 | lookup_name, text, word); |
6da67eb1 PA |
5369 | } |
5370 | ||
b5ec771e | 5371 | |
69636828 AF |
5372 | /* ObjC: In case we are completing on a selector, look as the msymbol |
5373 | again and feed all the selectors into the mill. */ | |
5374 | ||
5375 | static void | |
eb3ff9a5 PA |
5376 | completion_list_objc_symbol (completion_tracker &tracker, |
5377 | struct minimal_symbol *msymbol, | |
b5ec771e | 5378 | const lookup_name_info &lookup_name, |
0d5cff50 | 5379 | const char *text, const char *word) |
69636828 AF |
5380 | { |
5381 | static char *tmp = NULL; | |
5382 | static unsigned int tmplen = 0; | |
9af17804 | 5383 | |
0d5cff50 | 5384 | const char *method, *category, *selector; |
69636828 | 5385 | char *tmp2 = NULL; |
9af17804 | 5386 | |
c9d95fa3 | 5387 | method = msymbol->natural_name (); |
69636828 AF |
5388 | |
5389 | /* Is it a method? */ | |
5390 | if ((method[0] != '-') && (method[0] != '+')) | |
5391 | return; | |
5392 | ||
1b026119 | 5393 | if (text[0] == '[') |
69636828 | 5394 | /* Complete on shortened method method. */ |
b5ec771e PA |
5395 | completion_list_add_name (tracker, language_objc, |
5396 | method + 1, | |
5397 | lookup_name, | |
1b026119 | 5398 | text, word); |
9af17804 | 5399 | |
69636828 AF |
5400 | while ((strlen (method) + 1) >= tmplen) |
5401 | { | |
5402 | if (tmplen == 0) | |
5403 | tmplen = 1024; | |
5404 | else | |
5405 | tmplen *= 2; | |
224c3ddb | 5406 | tmp = (char *) xrealloc (tmp, tmplen); |
69636828 AF |
5407 | } |
5408 | selector = strchr (method, ' '); | |
5409 | if (selector != NULL) | |
5410 | selector++; | |
9af17804 | 5411 | |
69636828 | 5412 | category = strchr (method, '('); |
9af17804 | 5413 | |
69636828 AF |
5414 | if ((category != NULL) && (selector != NULL)) |
5415 | { | |
5416 | memcpy (tmp, method, (category - method)); | |
5417 | tmp[category - method] = ' '; | |
5418 | memcpy (tmp + (category - method) + 1, selector, strlen (selector) + 1); | |
b5ec771e | 5419 | completion_list_add_name (tracker, language_objc, tmp, |
1b026119 PA |
5420 | lookup_name, text, word); |
5421 | if (text[0] == '[') | |
b5ec771e | 5422 | completion_list_add_name (tracker, language_objc, tmp + 1, |
1b026119 | 5423 | lookup_name, text, word); |
69636828 | 5424 | } |
9af17804 | 5425 | |
69636828 AF |
5426 | if (selector != NULL) |
5427 | { | |
5428 | /* Complete on selector only. */ | |
5429 | strcpy (tmp, selector); | |
5430 | tmp2 = strchr (tmp, ']'); | |
5431 | if (tmp2 != NULL) | |
5432 | *tmp2 = '\0'; | |
9af17804 | 5433 | |
b5ec771e | 5434 | completion_list_add_name (tracker, language_objc, tmp, |
1b026119 | 5435 | lookup_name, text, word); |
69636828 AF |
5436 | } |
5437 | } | |
5438 | ||
5439 | /* Break the non-quoted text based on the characters which are in | |
c378eb4e | 5440 | symbols. FIXME: This should probably be language-specific. */ |
69636828 | 5441 | |
6f937416 PA |
5442 | static const char * |
5443 | language_search_unquoted_string (const char *text, const char *p) | |
69636828 AF |
5444 | { |
5445 | for (; p > text; --p) | |
5446 | { | |
5447 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0') | |
5448 | continue; | |
5449 | else | |
5450 | { | |
5451 | if ((current_language->la_language == language_objc)) | |
5452 | { | |
c378eb4e | 5453 | if (p[-1] == ':') /* Might be part of a method name. */ |
69636828 AF |
5454 | continue; |
5455 | else if (p[-1] == '[' && (p[-2] == '-' || p[-2] == '+')) | |
c378eb4e | 5456 | p -= 2; /* Beginning of a method name. */ |
69636828 | 5457 | else if (p[-1] == ' ' || p[-1] == '(' || p[-1] == ')') |
c378eb4e | 5458 | { /* Might be part of a method name. */ |
6f937416 | 5459 | const char *t = p; |
69636828 AF |
5460 | |
5461 | /* Seeing a ' ' or a '(' is not conclusive evidence | |
5462 | that we are in the middle of a method name. However, | |
5463 | finding "-[" or "+[" should be pretty un-ambiguous. | |
5464 | Unfortunately we have to find it now to decide. */ | |
5465 | ||
5466 | while (t > text) | |
5467 | if (isalnum (t[-1]) || t[-1] == '_' || | |
5468 | t[-1] == ' ' || t[-1] == ':' || | |
5469 | t[-1] == '(' || t[-1] == ')') | |
5470 | --t; | |
5471 | else | |
5472 | break; | |
5473 | ||
5474 | if (t[-1] == '[' && (t[-2] == '-' || t[-2] == '+')) | |
c378eb4e MS |
5475 | p = t - 2; /* Method name detected. */ |
5476 | /* Else we leave with p unchanged. */ | |
69636828 AF |
5477 | } |
5478 | } | |
5479 | break; | |
5480 | } | |
5481 | } | |
5482 | return p; | |
5483 | } | |
5484 | ||
edb3359d | 5485 | static void |
eb3ff9a5 PA |
5486 | completion_list_add_fields (completion_tracker &tracker, |
5487 | struct symbol *sym, | |
b5ec771e | 5488 | const lookup_name_info &lookup_name, |
eb3ff9a5 | 5489 | const char *text, const char *word) |
edb3359d DJ |
5490 | { |
5491 | if (SYMBOL_CLASS (sym) == LOC_TYPEDEF) | |
5492 | { | |
5493 | struct type *t = SYMBOL_TYPE (sym); | |
78134374 | 5494 | enum type_code c = t->code (); |
edb3359d DJ |
5495 | int j; |
5496 | ||
5497 | if (c == TYPE_CODE_UNION || c == TYPE_CODE_STRUCT) | |
1f704f76 | 5498 | for (j = TYPE_N_BASECLASSES (t); j < t->num_fields (); j++) |
edb3359d | 5499 | if (TYPE_FIELD_NAME (t, j)) |
c1b5c1eb | 5500 | completion_list_add_name (tracker, sym->language (), |
b5ec771e | 5501 | TYPE_FIELD_NAME (t, j), |
1b026119 | 5502 | lookup_name, text, word); |
edb3359d DJ |
5503 | } |
5504 | } | |
5505 | ||
f9d67a22 PA |
5506 | /* See symtab.h. */ |
5507 | ||
5508 | bool | |
5509 | symbol_is_function_or_method (symbol *sym) | |
5510 | { | |
78134374 | 5511 | switch (SYMBOL_TYPE (sym)->code ()) |
f9d67a22 PA |
5512 | { |
5513 | case TYPE_CODE_FUNC: | |
5514 | case TYPE_CODE_METHOD: | |
5515 | return true; | |
5516 | default: | |
5517 | return false; | |
5518 | } | |
5519 | } | |
5520 | ||
5521 | /* See symtab.h. */ | |
5522 | ||
5523 | bool | |
5524 | symbol_is_function_or_method (minimal_symbol *msymbol) | |
5525 | { | |
5526 | switch (MSYMBOL_TYPE (msymbol)) | |
5527 | { | |
5528 | case mst_text: | |
5529 | case mst_text_gnu_ifunc: | |
5530 | case mst_solib_trampoline: | |
5531 | case mst_file_text: | |
5532 | return true; | |
5533 | default: | |
5534 | return false; | |
5535 | } | |
5536 | } | |
5537 | ||
ca31ab1d PA |
5538 | /* See symtab.h. */ |
5539 | ||
5540 | bound_minimal_symbol | |
5541 | find_gnu_ifunc (const symbol *sym) | |
5542 | { | |
5543 | if (SYMBOL_CLASS (sym) != LOC_BLOCK) | |
5544 | return {}; | |
5545 | ||
987012b8 | 5546 | lookup_name_info lookup_name (sym->search_name (), |
ca31ab1d PA |
5547 | symbol_name_match_type::SEARCH_NAME); |
5548 | struct objfile *objfile = symbol_objfile (sym); | |
5549 | ||
2b1ffcfd | 5550 | CORE_ADDR address = BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (sym)); |
ca31ab1d PA |
5551 | minimal_symbol *ifunc = NULL; |
5552 | ||
5553 | iterate_over_minimal_symbols (objfile, lookup_name, | |
5554 | [&] (minimal_symbol *minsym) | |
5555 | { | |
5556 | if (MSYMBOL_TYPE (minsym) == mst_text_gnu_ifunc | |
f50776aa | 5557 | || MSYMBOL_TYPE (minsym) == mst_data_gnu_ifunc) |
ca31ab1d | 5558 | { |
f50776aa PA |
5559 | CORE_ADDR msym_addr = MSYMBOL_VALUE_ADDRESS (objfile, minsym); |
5560 | if (MSYMBOL_TYPE (minsym) == mst_data_gnu_ifunc) | |
5561 | { | |
08feed99 | 5562 | struct gdbarch *gdbarch = objfile->arch (); |
8b88a78e PA |
5563 | msym_addr |
5564 | = gdbarch_convert_from_func_ptr_addr (gdbarch, | |
5565 | msym_addr, | |
5566 | current_top_target ()); | |
f50776aa PA |
5567 | } |
5568 | if (msym_addr == address) | |
5569 | { | |
5570 | ifunc = minsym; | |
5571 | return true; | |
5572 | } | |
ca31ab1d PA |
5573 | } |
5574 | return false; | |
5575 | }); | |
5576 | ||
5577 | if (ifunc != NULL) | |
5578 | return {ifunc, objfile}; | |
5579 | return {}; | |
5580 | } | |
5581 | ||
e11c72c7 GB |
5582 | /* Add matching symbols from SYMTAB to the current completion list. */ |
5583 | ||
5584 | static void | |
5585 | add_symtab_completions (struct compunit_symtab *cust, | |
eb3ff9a5 | 5586 | completion_tracker &tracker, |
f9d67a22 | 5587 | complete_symbol_mode mode, |
b5ec771e | 5588 | const lookup_name_info &lookup_name, |
e11c72c7 GB |
5589 | const char *text, const char *word, |
5590 | enum type_code code) | |
5591 | { | |
5592 | struct symbol *sym; | |
5593 | const struct block *b; | |
5594 | struct block_iterator iter; | |
5595 | int i; | |
5596 | ||
ff6fa247 GB |
5597 | if (cust == NULL) |
5598 | return; | |
5599 | ||
e11c72c7 GB |
5600 | for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++) |
5601 | { | |
5602 | QUIT; | |
5603 | b = BLOCKVECTOR_BLOCK (COMPUNIT_BLOCKVECTOR (cust), i); | |
5604 | ALL_BLOCK_SYMBOLS (b, iter, sym) | |
5605 | { | |
f9d67a22 PA |
5606 | if (completion_skip_symbol (mode, sym)) |
5607 | continue; | |
5608 | ||
e11c72c7 GB |
5609 | if (code == TYPE_CODE_UNDEF |
5610 | || (SYMBOL_DOMAIN (sym) == STRUCT_DOMAIN | |
78134374 | 5611 | && SYMBOL_TYPE (sym)->code () == code)) |
eb3ff9a5 | 5612 | completion_list_add_symbol (tracker, sym, |
b5ec771e | 5613 | lookup_name, |
e11c72c7 GB |
5614 | text, word); |
5615 | } | |
5616 | } | |
5617 | } | |
5618 | ||
eb3ff9a5 PA |
5619 | void |
5620 | default_collect_symbol_completion_matches_break_on | |
b5ec771e PA |
5621 | (completion_tracker &tracker, complete_symbol_mode mode, |
5622 | symbol_name_match_type name_match_type, | |
eb3ff9a5 PA |
5623 | const char *text, const char *word, |
5624 | const char *break_on, enum type_code code) | |
c906108c | 5625 | { |
41d27058 JB |
5626 | /* Problem: All of the symbols have to be copied because readline |
5627 | frees them. I'm not going to worry about this; hopefully there | |
5628 | won't be that many. */ | |
5629 | ||
de4f826b | 5630 | struct symbol *sym; |
3977b71f | 5631 | const struct block *b; |
edb3359d | 5632 | const struct block *surrounding_static_block, *surrounding_global_block; |
8157b174 | 5633 | struct block_iterator iter; |
c906108c | 5634 | /* The symbol we are completing on. Points in same buffer as text. */ |
6f937416 | 5635 | const char *sym_text; |
c906108c | 5636 | |
41d27058 | 5637 | /* Now look for the symbol we are supposed to complete on. */ |
c6756f62 PA |
5638 | if (mode == complete_symbol_mode::LINESPEC) |
5639 | sym_text = text; | |
5640 | else | |
c906108c | 5641 | { |
6f937416 | 5642 | const char *p; |
c906108c | 5643 | char quote_found; |
6f937416 | 5644 | const char *quote_pos = NULL; |
c906108c SS |
5645 | |
5646 | /* First see if this is a quoted string. */ | |
5647 | quote_found = '\0'; | |
5648 | for (p = text; *p != '\0'; ++p) | |
5649 | { | |
5650 | if (quote_found != '\0') | |
5651 | { | |
5652 | if (*p == quote_found) | |
5653 | /* Found close quote. */ | |
5654 | quote_found = '\0'; | |
5655 | else if (*p == '\\' && p[1] == quote_found) | |
5656 | /* A backslash followed by the quote character | |
c5aa993b | 5657 | doesn't end the string. */ |
c906108c SS |
5658 | ++p; |
5659 | } | |
5660 | else if (*p == '\'' || *p == '"') | |
5661 | { | |
5662 | quote_found = *p; | |
5663 | quote_pos = p; | |
5664 | } | |
5665 | } | |
5666 | if (quote_found == '\'') | |
5667 | /* A string within single quotes can be a symbol, so complete on it. */ | |
5668 | sym_text = quote_pos + 1; | |
5669 | else if (quote_found == '"') | |
5670 | /* A double-quoted string is never a symbol, nor does it make sense | |
c5aa993b | 5671 | to complete it any other way. */ |
c94fdfd0 | 5672 | { |
ef0b411a | 5673 | return; |
c94fdfd0 | 5674 | } |
c906108c SS |
5675 | else |
5676 | { | |
5677 | /* It is not a quoted string. Break it based on the characters | |
5678 | which are in symbols. */ | |
5679 | while (p > text) | |
5680 | { | |
95699ff0 | 5681 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0' |
f55ee35c | 5682 | || p[-1] == ':' || strchr (break_on, p[-1]) != NULL) |
c906108c SS |
5683 | --p; |
5684 | else | |
5685 | break; | |
5686 | } | |
5687 | sym_text = p; | |
5688 | } | |
5689 | } | |
5690 | ||
1b026119 | 5691 | lookup_name_info lookup_name (sym_text, name_match_type, true); |
b5ec771e | 5692 | |
c906108c SS |
5693 | /* At this point scan through the misc symbol vectors and add each |
5694 | symbol you find to the list. Eventually we want to ignore | |
5695 | anything that isn't a text symbol (everything else will be | |
e11c72c7 | 5696 | handled by the psymtab code below). */ |
c906108c | 5697 | |
2f68a895 TT |
5698 | if (code == TYPE_CODE_UNDEF) |
5699 | { | |
2030c079 | 5700 | for (objfile *objfile : current_program_space->objfiles ()) |
2f68a895 | 5701 | { |
7932255d | 5702 | for (minimal_symbol *msymbol : objfile->msymbols ()) |
5325b9bf TT |
5703 | { |
5704 | QUIT; | |
9af17804 | 5705 | |
5325b9bf TT |
5706 | if (completion_skip_symbol (mode, msymbol)) |
5707 | continue; | |
f9d67a22 | 5708 | |
5325b9bf TT |
5709 | completion_list_add_msymbol (tracker, msymbol, lookup_name, |
5710 | sym_text, word); | |
eb3ff9a5 | 5711 | |
5325b9bf TT |
5712 | completion_list_objc_symbol (tracker, msymbol, lookup_name, |
5713 | sym_text, word); | |
5714 | } | |
2f68a895 TT |
5715 | } |
5716 | } | |
c906108c | 5717 | |
e11c72c7 | 5718 | /* Add completions for all currently loaded symbol tables. */ |
2030c079 | 5719 | for (objfile *objfile : current_program_space->objfiles ()) |
d8aeb77f | 5720 | { |
b669c953 | 5721 | for (compunit_symtab *cust : objfile->compunits ()) |
d8aeb77f TT |
5722 | add_symtab_completions (cust, tracker, mode, lookup_name, |
5723 | sym_text, word, code); | |
5724 | } | |
e11c72c7 | 5725 | |
14bc53a8 PA |
5726 | /* Look through the partial symtabs for all symbols which begin by |
5727 | matching SYM_TEXT. Expand all CUs that you find to the list. */ | |
5728 | expand_symtabs_matching (NULL, | |
b5ec771e PA |
5729 | lookup_name, |
5730 | NULL, | |
14bc53a8 PA |
5731 | [&] (compunit_symtab *symtab) /* expansion notify */ |
5732 | { | |
5733 | add_symtab_completions (symtab, | |
f9d67a22 | 5734 | tracker, mode, lookup_name, |
1b026119 | 5735 | sym_text, word, code); |
14bc53a8 PA |
5736 | }, |
5737 | ALL_DOMAIN); | |
e11c72c7 | 5738 | |
c906108c | 5739 | /* Search upwards from currently selected frame (so that we can |
edb3359d DJ |
5740 | complete on local vars). Also catch fields of types defined in |
5741 | this places which match our text string. Only complete on types | |
c378eb4e | 5742 | visible from current context. */ |
edb3359d DJ |
5743 | |
5744 | b = get_selected_block (0); | |
5745 | surrounding_static_block = block_static_block (b); | |
5746 | surrounding_global_block = block_global_block (b); | |
5747 | if (surrounding_static_block != NULL) | |
5748 | while (b != surrounding_static_block) | |
5749 | { | |
5750 | QUIT; | |
c906108c | 5751 | |
edb3359d DJ |
5752 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
5753 | { | |
2f68a895 TT |
5754 | if (code == TYPE_CODE_UNDEF) |
5755 | { | |
b5ec771e | 5756 | completion_list_add_symbol (tracker, sym, lookup_name, |
1b026119 | 5757 | sym_text, word); |
b5ec771e | 5758 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 5759 | sym_text, word); |
2f68a895 TT |
5760 | } |
5761 | else if (SYMBOL_DOMAIN (sym) == STRUCT_DOMAIN | |
78134374 | 5762 | && SYMBOL_TYPE (sym)->code () == code) |
b5ec771e | 5763 | completion_list_add_symbol (tracker, sym, lookup_name, |
1b026119 | 5764 | sym_text, word); |
edb3359d | 5765 | } |
c5aa993b | 5766 | |
edb3359d DJ |
5767 | /* Stop when we encounter an enclosing function. Do not stop for |
5768 | non-inlined functions - the locals of the enclosing function | |
5769 | are in scope for a nested function. */ | |
5770 | if (BLOCK_FUNCTION (b) != NULL && block_inlined_p (b)) | |
5771 | break; | |
5772 | b = BLOCK_SUPERBLOCK (b); | |
5773 | } | |
c906108c | 5774 | |
edb3359d | 5775 | /* Add fields from the file's types; symbols will be added below. */ |
c906108c | 5776 | |
2f68a895 TT |
5777 | if (code == TYPE_CODE_UNDEF) |
5778 | { | |
5779 | if (surrounding_static_block != NULL) | |
5780 | ALL_BLOCK_SYMBOLS (surrounding_static_block, iter, sym) | |
b5ec771e | 5781 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 5782 | sym_text, word); |
edb3359d | 5783 | |
2f68a895 TT |
5784 | if (surrounding_global_block != NULL) |
5785 | ALL_BLOCK_SYMBOLS (surrounding_global_block, iter, sym) | |
b5ec771e | 5786 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 5787 | sym_text, word); |
2f68a895 | 5788 | } |
c906108c | 5789 | |
2f68a895 TT |
5790 | /* Skip macros if we are completing a struct tag -- arguable but |
5791 | usually what is expected. */ | |
1ac14a04 | 5792 | if (current_language->macro_expansion () == macro_expansion_c |
2f68a895 | 5793 | && code == TYPE_CODE_UNDEF) |
9a044a89 | 5794 | { |
f6c2623e | 5795 | gdb::unique_xmalloc_ptr<struct macro_scope> scope; |
9a044a89 | 5796 | |
14bc53a8 PA |
5797 | /* This adds a macro's name to the current completion list. */ |
5798 | auto add_macro_name = [&] (const char *macro_name, | |
5799 | const macro_definition *, | |
5800 | macro_source_file *, | |
5801 | int) | |
5802 | { | |
1b026119 PA |
5803 | completion_list_add_name (tracker, language_c, macro_name, |
5804 | lookup_name, sym_text, word); | |
14bc53a8 PA |
5805 | }; |
5806 | ||
9a044a89 TT |
5807 | /* Add any macros visible in the default scope. Note that this |
5808 | may yield the occasional wrong result, because an expression | |
5809 | might be evaluated in a scope other than the default. For | |
5810 | example, if the user types "break file:line if <TAB>", the | |
5811 | resulting expression will be evaluated at "file:line" -- but | |
5812 | at there does not seem to be a way to detect this at | |
5813 | completion time. */ | |
5814 | scope = default_macro_scope (); | |
5815 | if (scope) | |
f6c2623e TT |
5816 | macro_for_each_in_scope (scope->file, scope->line, |
5817 | add_macro_name); | |
9a044a89 TT |
5818 | |
5819 | /* User-defined macros are always visible. */ | |
14bc53a8 | 5820 | macro_for_each (macro_user_macros, add_macro_name); |
9a044a89 | 5821 | } |
ef0b411a GB |
5822 | } |
5823 | ||
eb3ff9a5 PA |
5824 | /* Collect all symbols (regardless of class) which begin by matching |
5825 | TEXT. */ | |
41d27058 | 5826 | |
eb3ff9a5 PA |
5827 | void |
5828 | collect_symbol_completion_matches (completion_tracker &tracker, | |
c6756f62 | 5829 | complete_symbol_mode mode, |
b5ec771e | 5830 | symbol_name_match_type name_match_type, |
eb3ff9a5 | 5831 | const char *text, const char *word) |
41d27058 | 5832 | { |
7e56227d AB |
5833 | current_language->collect_symbol_completion_matches (tracker, mode, |
5834 | name_match_type, | |
5835 | text, word, | |
5836 | TYPE_CODE_UNDEF); | |
2f68a895 TT |
5837 | } |
5838 | ||
eb3ff9a5 PA |
5839 | /* Like collect_symbol_completion_matches, but only collect |
5840 | STRUCT_DOMAIN symbols whose type code is CODE. */ | |
2f68a895 | 5841 | |
eb3ff9a5 PA |
5842 | void |
5843 | collect_symbol_completion_matches_type (completion_tracker &tracker, | |
5844 | const char *text, const char *word, | |
5845 | enum type_code code) | |
2f68a895 | 5846 | { |
c6756f62 | 5847 | complete_symbol_mode mode = complete_symbol_mode::EXPRESSION; |
b5ec771e | 5848 | symbol_name_match_type name_match_type = symbol_name_match_type::EXPRESSION; |
c6756f62 | 5849 | |
2f68a895 TT |
5850 | gdb_assert (code == TYPE_CODE_UNION |
5851 | || code == TYPE_CODE_STRUCT | |
2f68a895 | 5852 | || code == TYPE_CODE_ENUM); |
7e56227d AB |
5853 | current_language->collect_symbol_completion_matches (tracker, mode, |
5854 | name_match_type, | |
5855 | text, word, code); | |
41d27058 JB |
5856 | } |
5857 | ||
eb3ff9a5 PA |
5858 | /* Like collect_symbol_completion_matches, but collects a list of |
5859 | symbols defined in all source files named SRCFILE. */ | |
c94fdfd0 | 5860 | |
eb3ff9a5 PA |
5861 | void |
5862 | collect_file_symbol_completion_matches (completion_tracker &tracker, | |
c6756f62 | 5863 | complete_symbol_mode mode, |
b5ec771e | 5864 | symbol_name_match_type name_match_type, |
eb3ff9a5 PA |
5865 | const char *text, const char *word, |
5866 | const char *srcfile) | |
c94fdfd0 | 5867 | { |
c94fdfd0 | 5868 | /* The symbol we are completing on. Points in same buffer as text. */ |
6f937416 | 5869 | const char *sym_text; |
c94fdfd0 EZ |
5870 | |
5871 | /* Now look for the symbol we are supposed to complete on. | |
5872 | FIXME: This should be language-specific. */ | |
c6756f62 PA |
5873 | if (mode == complete_symbol_mode::LINESPEC) |
5874 | sym_text = text; | |
5875 | else | |
c94fdfd0 | 5876 | { |
6f937416 | 5877 | const char *p; |
c94fdfd0 | 5878 | char quote_found; |
6f937416 | 5879 | const char *quote_pos = NULL; |
c94fdfd0 EZ |
5880 | |
5881 | /* First see if this is a quoted string. */ | |
5882 | quote_found = '\0'; | |
5883 | for (p = text; *p != '\0'; ++p) | |
5884 | { | |
5885 | if (quote_found != '\0') | |
5886 | { | |
5887 | if (*p == quote_found) | |
5888 | /* Found close quote. */ | |
5889 | quote_found = '\0'; | |
5890 | else if (*p == '\\' && p[1] == quote_found) | |
5891 | /* A backslash followed by the quote character | |
5892 | doesn't end the string. */ | |
5893 | ++p; | |
5894 | } | |
5895 | else if (*p == '\'' || *p == '"') | |
5896 | { | |
5897 | quote_found = *p; | |
5898 | quote_pos = p; | |
5899 | } | |
5900 | } | |
5901 | if (quote_found == '\'') | |
5902 | /* A string within single quotes can be a symbol, so complete on it. */ | |
5903 | sym_text = quote_pos + 1; | |
5904 | else if (quote_found == '"') | |
5905 | /* A double-quoted string is never a symbol, nor does it make sense | |
5906 | to complete it any other way. */ | |
5907 | { | |
eb3ff9a5 | 5908 | return; |
c94fdfd0 EZ |
5909 | } |
5910 | else | |
5911 | { | |
69636828 AF |
5912 | /* Not a quoted string. */ |
5913 | sym_text = language_search_unquoted_string (text, p); | |
c94fdfd0 EZ |
5914 | } |
5915 | } | |
5916 | ||
1b026119 | 5917 | lookup_name_info lookup_name (sym_text, name_match_type, true); |
b5ec771e | 5918 | |
8f14146e PA |
5919 | /* Go through symtabs for SRCFILE and check the externs and statics |
5920 | for symbols which match. */ | |
5921 | iterate_over_symtabs (srcfile, [&] (symtab *s) | |
c94fdfd0 | 5922 | { |
8f14146e | 5923 | add_symtab_completions (SYMTAB_COMPUNIT (s), |
f9d67a22 | 5924 | tracker, mode, lookup_name, |
1b026119 | 5925 | sym_text, word, TYPE_CODE_UNDEF); |
8f14146e PA |
5926 | return false; |
5927 | }); | |
e27852be DE |
5928 | } |
5929 | ||
c94fdfd0 EZ |
5930 | /* A helper function for make_source_files_completion_list. It adds |
5931 | another file name to a list of possible completions, growing the | |
5932 | list as necessary. */ | |
5933 | ||
5934 | static void | |
6f937416 | 5935 | add_filename_to_list (const char *fname, const char *text, const char *word, |
eb3ff9a5 | 5936 | completion_list *list) |
c94fdfd0 | 5937 | { |
60a20c19 | 5938 | list->emplace_back (make_completion_match_str (fname, text, word)); |
c94fdfd0 EZ |
5939 | } |
5940 | ||
5941 | static int | |
5942 | not_interesting_fname (const char *fname) | |
5943 | { | |
5944 | static const char *illegal_aliens[] = { | |
5945 | "_globals_", /* inserted by coff_symtab_read */ | |
5946 | NULL | |
5947 | }; | |
5948 | int i; | |
5949 | ||
5950 | for (i = 0; illegal_aliens[i]; i++) | |
5951 | { | |
0ba1096a | 5952 | if (filename_cmp (fname, illegal_aliens[i]) == 0) |
c94fdfd0 EZ |
5953 | return 1; |
5954 | } | |
5955 | return 0; | |
5956 | } | |
5957 | ||
ccefe4c4 TT |
5958 | /* An object of this type is passed as the user_data argument to |
5959 | map_partial_symbol_filenames. */ | |
5960 | struct add_partial_filename_data | |
5961 | { | |
9fdc877b | 5962 | struct filename_seen_cache *filename_seen_cache; |
6f937416 PA |
5963 | const char *text; |
5964 | const char *word; | |
ccefe4c4 | 5965 | int text_len; |
eb3ff9a5 | 5966 | completion_list *list; |
ccefe4c4 TT |
5967 | }; |
5968 | ||
5969 | /* A callback for map_partial_symbol_filenames. */ | |
eca864fe | 5970 | |
ccefe4c4 | 5971 | static void |
2837d59e | 5972 | maybe_add_partial_symtab_filename (const char *filename, const char *fullname, |
ccefe4c4 TT |
5973 | void *user_data) |
5974 | { | |
19ba03f4 SM |
5975 | struct add_partial_filename_data *data |
5976 | = (struct add_partial_filename_data *) user_data; | |
ccefe4c4 TT |
5977 | |
5978 | if (not_interesting_fname (filename)) | |
5979 | return; | |
bbf2f4df | 5980 | if (!data->filename_seen_cache->seen (filename) |
0ba1096a | 5981 | && filename_ncmp (filename, data->text, data->text_len) == 0) |
ccefe4c4 TT |
5982 | { |
5983 | /* This file matches for a completion; add it to the | |
5984 | current list of matches. */ | |
49c4e619 | 5985 | add_filename_to_list (filename, data->text, data->word, data->list); |
ccefe4c4 TT |
5986 | } |
5987 | else | |
5988 | { | |
5989 | const char *base_name = lbasename (filename); | |
433759f7 | 5990 | |
ccefe4c4 | 5991 | if (base_name != filename |
bbf2f4df | 5992 | && !data->filename_seen_cache->seen (base_name) |
0ba1096a | 5993 | && filename_ncmp (base_name, data->text, data->text_len) == 0) |
49c4e619 | 5994 | add_filename_to_list (base_name, data->text, data->word, data->list); |
ccefe4c4 TT |
5995 | } |
5996 | } | |
5997 | ||
eb3ff9a5 | 5998 | /* Return a list of all source files whose names begin with matching |
49c4e619 | 5999 | TEXT. The file names are looked up in the symbol tables of this |
eb3ff9a5 | 6000 | program. */ |
c94fdfd0 | 6001 | |
eb3ff9a5 | 6002 | completion_list |
6f937416 | 6003 | make_source_files_completion_list (const char *text, const char *word) |
c94fdfd0 | 6004 | { |
c94fdfd0 | 6005 | size_t text_len = strlen (text); |
eb3ff9a5 | 6006 | completion_list list; |
31889e00 | 6007 | const char *base_name; |
ccefe4c4 | 6008 | struct add_partial_filename_data datum; |
c94fdfd0 | 6009 | |
c94fdfd0 EZ |
6010 | if (!have_full_symbols () && !have_partial_symbols ()) |
6011 | return list; | |
6012 | ||
bbf2f4df | 6013 | filename_seen_cache filenames_seen; |
9fdc877b | 6014 | |
2030c079 | 6015 | for (objfile *objfile : current_program_space->objfiles ()) |
c94fdfd0 | 6016 | { |
b669c953 | 6017 | for (compunit_symtab *cu : objfile->compunits ()) |
c94fdfd0 | 6018 | { |
8b31193a TT |
6019 | for (symtab *s : compunit_filetabs (cu)) |
6020 | { | |
6021 | if (not_interesting_fname (s->filename)) | |
6022 | continue; | |
6023 | if (!filenames_seen.seen (s->filename) | |
6024 | && filename_ncmp (s->filename, text, text_len) == 0) | |
6025 | { | |
6026 | /* This file matches for a completion; add it to the current | |
6027 | list of matches. */ | |
6028 | add_filename_to_list (s->filename, text, word, &list); | |
6029 | } | |
6030 | else | |
6031 | { | |
6032 | /* NOTE: We allow the user to type a base name when the | |
6033 | debug info records leading directories, but not the other | |
6034 | way around. This is what subroutines of breakpoint | |
6035 | command do when they parse file names. */ | |
6036 | base_name = lbasename (s->filename); | |
6037 | if (base_name != s->filename | |
6038 | && !filenames_seen.seen (base_name) | |
6039 | && filename_ncmp (base_name, text, text_len) == 0) | |
6040 | add_filename_to_list (base_name, text, word, &list); | |
6041 | } | |
6042 | } | |
c94fdfd0 EZ |
6043 | } |
6044 | } | |
6045 | ||
bbf2f4df | 6046 | datum.filename_seen_cache = &filenames_seen; |
ccefe4c4 TT |
6047 | datum.text = text; |
6048 | datum.word = word; | |
6049 | datum.text_len = text_len; | |
6050 | datum.list = &list; | |
bb4142cf DE |
6051 | map_symbol_filenames (maybe_add_partial_symtab_filename, &datum, |
6052 | 0 /*need_fullname*/); | |
9fdc877b | 6053 | |
c94fdfd0 EZ |
6054 | return list; |
6055 | } | |
c906108c | 6056 | \f |
51cc5b07 | 6057 | /* Track MAIN */ |
32ac0d11 TT |
6058 | |
6059 | /* Return the "main_info" object for the current program space. If | |
6060 | the object has not yet been created, create it and fill in some | |
6061 | default values. */ | |
6062 | ||
6063 | static struct main_info * | |
6064 | get_main_info (void) | |
6065 | { | |
a32ad8c5 | 6066 | struct main_info *info = main_progspace_key.get (current_program_space); |
32ac0d11 TT |
6067 | |
6068 | if (info == NULL) | |
6069 | { | |
3d548a53 TT |
6070 | /* It may seem strange to store the main name in the progspace |
6071 | and also in whatever objfile happens to see a main name in | |
6072 | its debug info. The reason for this is mainly historical: | |
6073 | gdb returned "main" as the name even if no function named | |
6074 | "main" was defined the program; and this approach lets us | |
6075 | keep compatibility. */ | |
a32ad8c5 | 6076 | info = main_progspace_key.emplace (current_program_space); |
32ac0d11 TT |
6077 | } |
6078 | ||
6079 | return info; | |
6080 | } | |
6081 | ||
3d548a53 | 6082 | static void |
9e6c82ad | 6083 | set_main_name (const char *name, enum language lang) |
51cc5b07 | 6084 | { |
32ac0d11 TT |
6085 | struct main_info *info = get_main_info (); |
6086 | ||
6087 | if (info->name_of_main != NULL) | |
51cc5b07 | 6088 | { |
32ac0d11 TT |
6089 | xfree (info->name_of_main); |
6090 | info->name_of_main = NULL; | |
6091 | info->language_of_main = language_unknown; | |
51cc5b07 AC |
6092 | } |
6093 | if (name != NULL) | |
6094 | { | |
32ac0d11 TT |
6095 | info->name_of_main = xstrdup (name); |
6096 | info->language_of_main = lang; | |
51cc5b07 AC |
6097 | } |
6098 | } | |
6099 | ||
ea53e89f JB |
6100 | /* Deduce the name of the main procedure, and set NAME_OF_MAIN |
6101 | accordingly. */ | |
6102 | ||
6103 | static void | |
6104 | find_main_name (void) | |
6105 | { | |
cd6c7346 | 6106 | const char *new_main_name; |
3d548a53 TT |
6107 | |
6108 | /* First check the objfiles to see whether a debuginfo reader has | |
6109 | picked up the appropriate main name. Historically the main name | |
6110 | was found in a more or less random way; this approach instead | |
6111 | relies on the order of objfile creation -- which still isn't | |
6112 | guaranteed to get the correct answer, but is just probably more | |
6113 | accurate. */ | |
2030c079 | 6114 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
6115 | { |
6116 | if (objfile->per_bfd->name_of_main != NULL) | |
6117 | { | |
6118 | set_main_name (objfile->per_bfd->name_of_main, | |
6119 | objfile->per_bfd->language_of_main); | |
6120 | return; | |
6121 | } | |
6122 | } | |
ea53e89f JB |
6123 | |
6124 | /* Try to see if the main procedure is in Ada. */ | |
6125 | /* FIXME: brobecker/2005-03-07: Another way of doing this would | |
6126 | be to add a new method in the language vector, and call this | |
6127 | method for each language until one of them returns a non-empty | |
6128 | name. This would allow us to remove this hard-coded call to | |
6129 | an Ada function. It is not clear that this is a better approach | |
6130 | at this point, because all methods need to be written in a way | |
c378eb4e | 6131 | such that false positives never be returned. For instance, it is |
ea53e89f JB |
6132 | important that a method does not return a wrong name for the main |
6133 | procedure if the main procedure is actually written in a different | |
6134 | language. It is easy to guaranty this with Ada, since we use a | |
6135 | special symbol generated only when the main in Ada to find the name | |
c378eb4e | 6136 | of the main procedure. It is difficult however to see how this can |
ea53e89f JB |
6137 | be guarantied for languages such as C, for instance. This suggests |
6138 | that order of call for these methods becomes important, which means | |
6139 | a more complicated approach. */ | |
6140 | new_main_name = ada_main_name (); | |
6141 | if (new_main_name != NULL) | |
9af17804 | 6142 | { |
9e6c82ad | 6143 | set_main_name (new_main_name, language_ada); |
ea53e89f JB |
6144 | return; |
6145 | } | |
6146 | ||
63778547 IB |
6147 | new_main_name = d_main_name (); |
6148 | if (new_main_name != NULL) | |
6149 | { | |
6150 | set_main_name (new_main_name, language_d); | |
6151 | return; | |
6152 | } | |
6153 | ||
a766d390 DE |
6154 | new_main_name = go_main_name (); |
6155 | if (new_main_name != NULL) | |
6156 | { | |
9e6c82ad | 6157 | set_main_name (new_main_name, language_go); |
a766d390 DE |
6158 | return; |
6159 | } | |
6160 | ||
cd6c7346 PM |
6161 | new_main_name = pascal_main_name (); |
6162 | if (new_main_name != NULL) | |
9af17804 | 6163 | { |
9e6c82ad | 6164 | set_main_name (new_main_name, language_pascal); |
cd6c7346 PM |
6165 | return; |
6166 | } | |
6167 | ||
ea53e89f JB |
6168 | /* The languages above didn't identify the name of the main procedure. |
6169 | Fallback to "main". */ | |
d3214198 TV |
6170 | |
6171 | /* Try to find language for main in psymtabs. */ | |
6172 | enum language lang | |
6173 | = find_quick_global_symbol_language ("main", VAR_DOMAIN); | |
6174 | if (lang != language_unknown) | |
6175 | { | |
6176 | set_main_name ("main", lang); | |
6177 | return; | |
6178 | } | |
6179 | ||
9e6c82ad | 6180 | set_main_name ("main", language_unknown); |
ea53e89f JB |
6181 | } |
6182 | ||
cd215b2e TT |
6183 | /* See symtab.h. */ |
6184 | ||
6185 | const char * | |
6186 | main_name () | |
51cc5b07 | 6187 | { |
32ac0d11 TT |
6188 | struct main_info *info = get_main_info (); |
6189 | ||
6190 | if (info->name_of_main == NULL) | |
ea53e89f JB |
6191 | find_main_name (); |
6192 | ||
32ac0d11 | 6193 | return info->name_of_main; |
51cc5b07 AC |
6194 | } |
6195 | ||
9e6c82ad TT |
6196 | /* Return the language of the main function. If it is not known, |
6197 | return language_unknown. */ | |
6198 | ||
6199 | enum language | |
6200 | main_language (void) | |
6201 | { | |
32ac0d11 TT |
6202 | struct main_info *info = get_main_info (); |
6203 | ||
6204 | if (info->name_of_main == NULL) | |
6205 | find_main_name (); | |
6206 | ||
6207 | return info->language_of_main; | |
9e6c82ad TT |
6208 | } |
6209 | ||
ea53e89f JB |
6210 | /* Handle ``executable_changed'' events for the symtab module. */ |
6211 | ||
6212 | static void | |
781b42b0 | 6213 | symtab_observer_executable_changed (void) |
ea53e89f JB |
6214 | { |
6215 | /* NAME_OF_MAIN may no longer be the same, so reset it for now. */ | |
9e6c82ad | 6216 | set_main_name (NULL, language_unknown); |
ea53e89f | 6217 | } |
51cc5b07 | 6218 | |
a6c727b2 DJ |
6219 | /* Return 1 if the supplied producer string matches the ARM RealView |
6220 | compiler (armcc). */ | |
6221 | ||
ececd218 | 6222 | bool |
a6c727b2 DJ |
6223 | producer_is_realview (const char *producer) |
6224 | { | |
6225 | static const char *const arm_idents[] = { | |
6226 | "ARM C Compiler, ADS", | |
6227 | "Thumb C Compiler, ADS", | |
6228 | "ARM C++ Compiler, ADS", | |
6229 | "Thumb C++ Compiler, ADS", | |
6230 | "ARM/Thumb C/C++ Compiler, RVCT", | |
6231 | "ARM C/C++ Compiler, RVCT" | |
6232 | }; | |
6233 | int i; | |
6234 | ||
6235 | if (producer == NULL) | |
ececd218 | 6236 | return false; |
a6c727b2 DJ |
6237 | |
6238 | for (i = 0; i < ARRAY_SIZE (arm_idents); i++) | |
61012eef | 6239 | if (startswith (producer, arm_idents[i])) |
ececd218 | 6240 | return true; |
a6c727b2 | 6241 | |
ececd218 | 6242 | return false; |
a6c727b2 | 6243 | } |
ed0616c6 | 6244 | |
f1e6e072 TT |
6245 | \f |
6246 | ||
6247 | /* The next index to hand out in response to a registration request. */ | |
6248 | ||
6249 | static int next_aclass_value = LOC_FINAL_VALUE; | |
6250 | ||
6251 | /* The maximum number of "aclass" registrations we support. This is | |
6252 | constant for convenience. */ | |
6253 | #define MAX_SYMBOL_IMPLS (LOC_FINAL_VALUE + 10) | |
6254 | ||
6255 | /* The objects representing the various "aclass" values. The elements | |
6256 | from 0 up to LOC_FINAL_VALUE-1 represent themselves, and subsequent | |
6257 | elements are those registered at gdb initialization time. */ | |
6258 | ||
6259 | static struct symbol_impl symbol_impl[MAX_SYMBOL_IMPLS]; | |
6260 | ||
6261 | /* The globally visible pointer. This is separate from 'symbol_impl' | |
6262 | so that it can be const. */ | |
6263 | ||
6264 | const struct symbol_impl *symbol_impls = &symbol_impl[0]; | |
6265 | ||
6266 | /* Make sure we saved enough room in struct symbol. */ | |
6267 | ||
6268 | gdb_static_assert (MAX_SYMBOL_IMPLS <= (1 << SYMBOL_ACLASS_BITS)); | |
6269 | ||
6270 | /* Register a computed symbol type. ACLASS must be LOC_COMPUTED. OPS | |
6271 | is the ops vector associated with this index. This returns the new | |
6272 | index, which should be used as the aclass_index field for symbols | |
6273 | of this type. */ | |
6274 | ||
6275 | int | |
6276 | register_symbol_computed_impl (enum address_class aclass, | |
6277 | const struct symbol_computed_ops *ops) | |
6278 | { | |
6279 | int result = next_aclass_value++; | |
6280 | ||
6281 | gdb_assert (aclass == LOC_COMPUTED); | |
6282 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6283 | symbol_impl[result].aclass = aclass; | |
6284 | symbol_impl[result].ops_computed = ops; | |
6285 | ||
24d6c2a0 TT |
6286 | /* Sanity check OPS. */ |
6287 | gdb_assert (ops != NULL); | |
6288 | gdb_assert (ops->tracepoint_var_ref != NULL); | |
6289 | gdb_assert (ops->describe_location != NULL); | |
0b31a4bc | 6290 | gdb_assert (ops->get_symbol_read_needs != NULL); |
24d6c2a0 TT |
6291 | gdb_assert (ops->read_variable != NULL); |
6292 | ||
f1e6e072 TT |
6293 | return result; |
6294 | } | |
6295 | ||
6296 | /* Register a function with frame base type. ACLASS must be LOC_BLOCK. | |
6297 | OPS is the ops vector associated with this index. This returns the | |
6298 | new index, which should be used as the aclass_index field for symbols | |
6299 | of this type. */ | |
6300 | ||
6301 | int | |
6302 | register_symbol_block_impl (enum address_class aclass, | |
6303 | const struct symbol_block_ops *ops) | |
6304 | { | |
6305 | int result = next_aclass_value++; | |
6306 | ||
6307 | gdb_assert (aclass == LOC_BLOCK); | |
6308 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6309 | symbol_impl[result].aclass = aclass; | |
6310 | symbol_impl[result].ops_block = ops; | |
6311 | ||
6312 | /* Sanity check OPS. */ | |
6313 | gdb_assert (ops != NULL); | |
6314 | gdb_assert (ops->find_frame_base_location != NULL); | |
6315 | ||
6316 | return result; | |
6317 | } | |
6318 | ||
6319 | /* Register a register symbol type. ACLASS must be LOC_REGISTER or | |
6320 | LOC_REGPARM_ADDR. OPS is the register ops vector associated with | |
6321 | this index. This returns the new index, which should be used as | |
6322 | the aclass_index field for symbols of this type. */ | |
6323 | ||
6324 | int | |
6325 | register_symbol_register_impl (enum address_class aclass, | |
6326 | const struct symbol_register_ops *ops) | |
6327 | { | |
6328 | int result = next_aclass_value++; | |
6329 | ||
6330 | gdb_assert (aclass == LOC_REGISTER || aclass == LOC_REGPARM_ADDR); | |
6331 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6332 | symbol_impl[result].aclass = aclass; | |
6333 | symbol_impl[result].ops_register = ops; | |
6334 | ||
6335 | return result; | |
6336 | } | |
6337 | ||
6338 | /* Initialize elements of 'symbol_impl' for the constants in enum | |
6339 | address_class. */ | |
6340 | ||
6341 | static void | |
6342 | initialize_ordinary_address_classes (void) | |
6343 | { | |
6344 | int i; | |
6345 | ||
6346 | for (i = 0; i < LOC_FINAL_VALUE; ++i) | |
aead7601 | 6347 | symbol_impl[i].aclass = (enum address_class) i; |
f1e6e072 TT |
6348 | } |
6349 | ||
6350 | \f | |
6351 | ||
08be3fe3 DE |
6352 | /* See symtab.h. */ |
6353 | ||
6354 | struct objfile * | |
6355 | symbol_objfile (const struct symbol *symbol) | |
6356 | { | |
1994afbf DE |
6357 | gdb_assert (SYMBOL_OBJFILE_OWNED (symbol)); |
6358 | return SYMTAB_OBJFILE (symbol->owner.symtab); | |
08be3fe3 DE |
6359 | } |
6360 | ||
6361 | /* See symtab.h. */ | |
6362 | ||
6363 | struct gdbarch * | |
6364 | symbol_arch (const struct symbol *symbol) | |
6365 | { | |
1994afbf DE |
6366 | if (!SYMBOL_OBJFILE_OWNED (symbol)) |
6367 | return symbol->owner.arch; | |
08feed99 | 6368 | return SYMTAB_OBJFILE (symbol->owner.symtab)->arch (); |
08be3fe3 DE |
6369 | } |
6370 | ||
6371 | /* See symtab.h. */ | |
6372 | ||
6373 | struct symtab * | |
6374 | symbol_symtab (const struct symbol *symbol) | |
6375 | { | |
1994afbf DE |
6376 | gdb_assert (SYMBOL_OBJFILE_OWNED (symbol)); |
6377 | return symbol->owner.symtab; | |
08be3fe3 DE |
6378 | } |
6379 | ||
6380 | /* See symtab.h. */ | |
6381 | ||
6382 | void | |
6383 | symbol_set_symtab (struct symbol *symbol, struct symtab *symtab) | |
6384 | { | |
1994afbf DE |
6385 | gdb_assert (SYMBOL_OBJFILE_OWNED (symbol)); |
6386 | symbol->owner.symtab = symtab; | |
08be3fe3 DE |
6387 | } |
6388 | ||
4b610737 TT |
6389 | /* See symtab.h. */ |
6390 | ||
6391 | CORE_ADDR | |
6392 | get_symbol_address (const struct symbol *sym) | |
6393 | { | |
6394 | gdb_assert (sym->maybe_copied); | |
6395 | gdb_assert (SYMBOL_CLASS (sym) == LOC_STATIC); | |
6396 | ||
987012b8 | 6397 | const char *linkage_name = sym->linkage_name (); |
4b610737 TT |
6398 | |
6399 | for (objfile *objfile : current_program_space->objfiles ()) | |
6400 | { | |
3e65b3e9 TT |
6401 | if (objfile->separate_debug_objfile_backlink != nullptr) |
6402 | continue; | |
6403 | ||
4b610737 TT |
6404 | bound_minimal_symbol minsym |
6405 | = lookup_minimal_symbol_linkage (linkage_name, objfile); | |
6406 | if (minsym.minsym != nullptr) | |
6407 | return BMSYMBOL_VALUE_ADDRESS (minsym); | |
6408 | } | |
468c0cbb | 6409 | return sym->value.address; |
4b610737 TT |
6410 | } |
6411 | ||
6412 | /* See symtab.h. */ | |
6413 | ||
6414 | CORE_ADDR | |
6415 | get_msymbol_address (struct objfile *objf, const struct minimal_symbol *minsym) | |
6416 | { | |
6417 | gdb_assert (minsym->maybe_copied); | |
6418 | gdb_assert ((objf->flags & OBJF_MAINLINE) == 0); | |
6419 | ||
c9d95fa3 | 6420 | const char *linkage_name = minsym->linkage_name (); |
4b610737 TT |
6421 | |
6422 | for (objfile *objfile : current_program_space->objfiles ()) | |
6423 | { | |
3e65b3e9 TT |
6424 | if (objfile->separate_debug_objfile_backlink == nullptr |
6425 | && (objfile->flags & OBJF_MAINLINE) != 0) | |
4b610737 TT |
6426 | { |
6427 | bound_minimal_symbol found | |
6428 | = lookup_minimal_symbol_linkage (linkage_name, objfile); | |
6429 | if (found.minsym != nullptr) | |
6430 | return BMSYMBOL_VALUE_ADDRESS (found); | |
6431 | } | |
6432 | } | |
6a053cb1 | 6433 | return minsym->value.address + objf->section_offsets[minsym->section]; |
4b610737 TT |
6434 | } |
6435 | ||
e623cf5d TT |
6436 | \f |
6437 | ||
165f8965 AB |
6438 | /* Hold the sub-commands of 'info module'. */ |
6439 | ||
6440 | static struct cmd_list_element *info_module_cmdlist = NULL; | |
6441 | ||
165f8965 AB |
6442 | /* See symtab.h. */ |
6443 | ||
6444 | std::vector<module_symbol_search> | |
6445 | search_module_symbols (const char *module_regexp, const char *regexp, | |
6446 | const char *type_regexp, search_domain kind) | |
6447 | { | |
6448 | std::vector<module_symbol_search> results; | |
6449 | ||
6450 | /* Search for all modules matching MODULE_REGEXP. */ | |
470c0b1c AB |
6451 | global_symbol_searcher spec1 (MODULES_DOMAIN, module_regexp); |
6452 | spec1.set_exclude_minsyms (true); | |
6453 | std::vector<symbol_search> modules = spec1.search (); | |
165f8965 AB |
6454 | |
6455 | /* Now search for all symbols of the required KIND matching the required | |
6456 | regular expressions. We figure out which ones are in which modules | |
6457 | below. */ | |
470c0b1c AB |
6458 | global_symbol_searcher spec2 (kind, regexp); |
6459 | spec2.set_symbol_type_regexp (type_regexp); | |
6460 | spec2.set_exclude_minsyms (true); | |
6461 | std::vector<symbol_search> symbols = spec2.search (); | |
165f8965 AB |
6462 | |
6463 | /* Now iterate over all MODULES, checking to see which items from | |
6464 | SYMBOLS are in each module. */ | |
6465 | for (const symbol_search &p : modules) | |
6466 | { | |
6467 | QUIT; | |
6468 | ||
6469 | /* This is a module. */ | |
6470 | gdb_assert (p.symbol != nullptr); | |
6471 | ||
987012b8 | 6472 | std::string prefix = p.symbol->print_name (); |
165f8965 AB |
6473 | prefix += "::"; |
6474 | ||
6475 | for (const symbol_search &q : symbols) | |
6476 | { | |
6477 | if (q.symbol == nullptr) | |
6478 | continue; | |
6479 | ||
987012b8 | 6480 | if (strncmp (q.symbol->print_name (), prefix.c_str (), |
165f8965 AB |
6481 | prefix.size ()) != 0) |
6482 | continue; | |
6483 | ||
6484 | results.push_back ({p, q}); | |
6485 | } | |
6486 | } | |
6487 | ||
6488 | return results; | |
6489 | } | |
6490 | ||
6491 | /* Implement the core of both 'info module functions' and 'info module | |
6492 | variables'. */ | |
6493 | ||
6494 | static void | |
6495 | info_module_subcommand (bool quiet, const char *module_regexp, | |
6496 | const char *regexp, const char *type_regexp, | |
6497 | search_domain kind) | |
6498 | { | |
6499 | /* Print a header line. Don't build the header line bit by bit as this | |
6500 | prevents internationalisation. */ | |
6501 | if (!quiet) | |
6502 | { | |
6503 | if (module_regexp == nullptr) | |
6504 | { | |
6505 | if (type_regexp == nullptr) | |
6506 | { | |
6507 | if (regexp == nullptr) | |
6508 | printf_filtered ((kind == VARIABLES_DOMAIN | |
6509 | ? _("All variables in all modules:") | |
6510 | : _("All functions in all modules:"))); | |
6511 | else | |
6512 | printf_filtered | |
6513 | ((kind == VARIABLES_DOMAIN | |
6514 | ? _("All variables matching regular expression" | |
6515 | " \"%s\" in all modules:") | |
6516 | : _("All functions matching regular expression" | |
6517 | " \"%s\" in all modules:")), | |
6518 | regexp); | |
6519 | } | |
6520 | else | |
6521 | { | |
6522 | if (regexp == nullptr) | |
6523 | printf_filtered | |
6524 | ((kind == VARIABLES_DOMAIN | |
6525 | ? _("All variables with type matching regular " | |
6526 | "expression \"%s\" in all modules:") | |
6527 | : _("All functions with type matching regular " | |
6528 | "expression \"%s\" in all modules:")), | |
6529 | type_regexp); | |
6530 | else | |
6531 | printf_filtered | |
6532 | ((kind == VARIABLES_DOMAIN | |
6533 | ? _("All variables matching regular expression " | |
6534 | "\"%s\",\n\twith type matching regular " | |
6535 | "expression \"%s\" in all modules:") | |
6536 | : _("All functions matching regular expression " | |
6537 | "\"%s\",\n\twith type matching regular " | |
6538 | "expression \"%s\" in all modules:")), | |
6539 | regexp, type_regexp); | |
6540 | } | |
6541 | } | |
6542 | else | |
6543 | { | |
6544 | if (type_regexp == nullptr) | |
6545 | { | |
6546 | if (regexp == nullptr) | |
6547 | printf_filtered | |
6548 | ((kind == VARIABLES_DOMAIN | |
6549 | ? _("All variables in all modules matching regular " | |
6550 | "expression \"%s\":") | |
6551 | : _("All functions in all modules matching regular " | |
6552 | "expression \"%s\":")), | |
6553 | module_regexp); | |
6554 | else | |
6555 | printf_filtered | |
6556 | ((kind == VARIABLES_DOMAIN | |
6557 | ? _("All variables matching regular expression " | |
6558 | "\"%s\",\n\tin all modules matching regular " | |
6559 | "expression \"%s\":") | |
6560 | : _("All functions matching regular expression " | |
6561 | "\"%s\",\n\tin all modules matching regular " | |
6562 | "expression \"%s\":")), | |
6563 | regexp, module_regexp); | |
6564 | } | |
6565 | else | |
6566 | { | |
6567 | if (regexp == nullptr) | |
6568 | printf_filtered | |
6569 | ((kind == VARIABLES_DOMAIN | |
6570 | ? _("All variables with type matching regular " | |
6571 | "expression \"%s\"\n\tin all modules matching " | |
6572 | "regular expression \"%s\":") | |
6573 | : _("All functions with type matching regular " | |
6574 | "expression \"%s\"\n\tin all modules matching " | |
6575 | "regular expression \"%s\":")), | |
6576 | type_regexp, module_regexp); | |
6577 | else | |
6578 | printf_filtered | |
6579 | ((kind == VARIABLES_DOMAIN | |
6580 | ? _("All variables matching regular expression " | |
6581 | "\"%s\",\n\twith type matching regular expression " | |
6582 | "\"%s\",\n\tin all modules matching regular " | |
6583 | "expression \"%s\":") | |
6584 | : _("All functions matching regular expression " | |
6585 | "\"%s\",\n\twith type matching regular expression " | |
6586 | "\"%s\",\n\tin all modules matching regular " | |
6587 | "expression \"%s\":")), | |
6588 | regexp, type_regexp, module_regexp); | |
6589 | } | |
6590 | } | |
6591 | printf_filtered ("\n"); | |
6592 | } | |
6593 | ||
6594 | /* Find all symbols of type KIND matching the given regular expressions | |
6595 | along with the symbols for the modules in which those symbols | |
6596 | reside. */ | |
6597 | std::vector<module_symbol_search> module_symbols | |
6598 | = search_module_symbols (module_regexp, regexp, type_regexp, kind); | |
6599 | ||
6600 | std::sort (module_symbols.begin (), module_symbols.end (), | |
6601 | [] (const module_symbol_search &a, const module_symbol_search &b) | |
6602 | { | |
6603 | if (a.first < b.first) | |
6604 | return true; | |
6605 | else if (a.first == b.first) | |
6606 | return a.second < b.second; | |
6607 | else | |
6608 | return false; | |
6609 | }); | |
6610 | ||
6611 | const char *last_filename = ""; | |
6612 | const symbol *last_module_symbol = nullptr; | |
6613 | for (const module_symbol_search &ms : module_symbols) | |
6614 | { | |
6615 | const symbol_search &p = ms.first; | |
6616 | const symbol_search &q = ms.second; | |
6617 | ||
6618 | gdb_assert (q.symbol != nullptr); | |
6619 | ||
6620 | if (last_module_symbol != p.symbol) | |
6621 | { | |
6622 | printf_filtered ("\n"); | |
987012b8 | 6623 | printf_filtered (_("Module \"%s\":\n"), p.symbol->print_name ()); |
165f8965 AB |
6624 | last_module_symbol = p.symbol; |
6625 | last_filename = ""; | |
6626 | } | |
6627 | ||
6628 | print_symbol_info (FUNCTIONS_DOMAIN, q.symbol, q.block, | |
6629 | last_filename); | |
6630 | last_filename | |
6631 | = symtab_to_filename_for_display (symbol_symtab (q.symbol)); | |
6632 | } | |
6633 | } | |
6634 | ||
6635 | /* Hold the option values for the 'info module .....' sub-commands. */ | |
6636 | ||
6637 | struct info_modules_var_func_options | |
6638 | { | |
6639 | bool quiet = false; | |
6640 | char *type_regexp = nullptr; | |
6641 | char *module_regexp = nullptr; | |
6642 | ||
6643 | ~info_modules_var_func_options () | |
6644 | { | |
6645 | xfree (type_regexp); | |
6646 | xfree (module_regexp); | |
6647 | } | |
6648 | }; | |
6649 | ||
6650 | /* The options used by 'info module variables' and 'info module functions' | |
6651 | commands. */ | |
6652 | ||
6653 | static const gdb::option::option_def info_modules_var_func_options_defs [] = { | |
6654 | gdb::option::boolean_option_def<info_modules_var_func_options> { | |
6655 | "q", | |
6656 | [] (info_modules_var_func_options *opt) { return &opt->quiet; }, | |
6657 | nullptr, /* show_cmd_cb */ | |
6658 | nullptr /* set_doc */ | |
6659 | }, | |
6660 | ||
6661 | gdb::option::string_option_def<info_modules_var_func_options> { | |
6662 | "t", | |
6663 | [] (info_modules_var_func_options *opt) { return &opt->type_regexp; }, | |
6664 | nullptr, /* show_cmd_cb */ | |
6665 | nullptr /* set_doc */ | |
6666 | }, | |
6667 | ||
6668 | gdb::option::string_option_def<info_modules_var_func_options> { | |
6669 | "m", | |
6670 | [] (info_modules_var_func_options *opt) { return &opt->module_regexp; }, | |
6671 | nullptr, /* show_cmd_cb */ | |
6672 | nullptr /* set_doc */ | |
6673 | } | |
6674 | }; | |
6675 | ||
6676 | /* Return the option group used by the 'info module ...' sub-commands. */ | |
6677 | ||
6678 | static inline gdb::option::option_def_group | |
6679 | make_info_modules_var_func_options_def_group | |
6680 | (info_modules_var_func_options *opts) | |
6681 | { | |
6682 | return {{info_modules_var_func_options_defs}, opts}; | |
6683 | } | |
6684 | ||
6685 | /* Implements the 'info module functions' command. */ | |
6686 | ||
6687 | static void | |
6688 | info_module_functions_command (const char *args, int from_tty) | |
6689 | { | |
6690 | info_modules_var_func_options opts; | |
6691 | auto grp = make_info_modules_var_func_options_def_group (&opts); | |
6692 | gdb::option::process_options | |
6693 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
6694 | if (args != nullptr && *args == '\0') | |
6695 | args = nullptr; | |
6696 | ||
6697 | info_module_subcommand (opts.quiet, opts.module_regexp, args, | |
6698 | opts.type_regexp, FUNCTIONS_DOMAIN); | |
6699 | } | |
6700 | ||
6701 | /* Implements the 'info module variables' command. */ | |
6702 | ||
6703 | static void | |
6704 | info_module_variables_command (const char *args, int from_tty) | |
6705 | { | |
6706 | info_modules_var_func_options opts; | |
6707 | auto grp = make_info_modules_var_func_options_def_group (&opts); | |
6708 | gdb::option::process_options | |
6709 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
6710 | if (args != nullptr && *args == '\0') | |
6711 | args = nullptr; | |
6712 | ||
6713 | info_module_subcommand (opts.quiet, opts.module_regexp, args, | |
6714 | opts.type_regexp, VARIABLES_DOMAIN); | |
6715 | } | |
6716 | ||
6717 | /* Command completer for 'info module ...' sub-commands. */ | |
6718 | ||
6719 | static void | |
6720 | info_module_var_func_command_completer (struct cmd_list_element *ignore, | |
6721 | completion_tracker &tracker, | |
6722 | const char *text, | |
6723 | const char * /* word */) | |
6724 | { | |
6725 | ||
6726 | const auto group = make_info_modules_var_func_options_def_group (nullptr); | |
6727 | if (gdb::option::complete_options | |
6728 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
6729 | return; | |
6730 | ||
6731 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
6732 | symbol_completer (ignore, tracker, text, word); | |
6733 | } | |
6734 | ||
6735 | \f | |
6736 | ||
6c265988 | 6737 | void _initialize_symtab (); |
c906108c | 6738 | void |
6c265988 | 6739 | _initialize_symtab () |
c906108c | 6740 | { |
60cfcb20 AB |
6741 | cmd_list_element *c; |
6742 | ||
f1e6e072 TT |
6743 | initialize_ordinary_address_classes (); |
6744 | ||
60cfcb20 AB |
6745 | c = add_info ("variables", info_variables_command, |
6746 | info_print_args_help (_("\ | |
12615cba | 6747 | All global and static variable names or those matching REGEXPs.\n\ |
4acfdd20 | 6748 | Usage: info variables [-q] [-n] [-t TYPEREGEXP] [NAMEREGEXP]\n\ |
12615cba | 6749 | Prints the global and static variables.\n"), |
4acfdd20 AB |
6750 | _("global and static variables"), |
6751 | true)); | |
095252be | 6752 | set_cmd_completer_handle_brkchars (c, info_vars_funcs_command_completer); |
c906108c | 6753 | if (dbx_commands) |
60cfcb20 AB |
6754 | { |
6755 | c = add_com ("whereis", class_info, info_variables_command, | |
6756 | info_print_args_help (_("\ | |
12615cba | 6757 | All global and static variable names, or those matching REGEXPs.\n\ |
4acfdd20 | 6758 | Usage: whereis [-q] [-n] [-t TYPEREGEXP] [NAMEREGEXP]\n\ |
12615cba | 6759 | Prints the global and static variables.\n"), |
4acfdd20 AB |
6760 | _("global and static variables"), |
6761 | true)); | |
095252be | 6762 | set_cmd_completer_handle_brkchars (c, info_vars_funcs_command_completer); |
60cfcb20 | 6763 | } |
c906108c | 6764 | |
60cfcb20 AB |
6765 | c = add_info ("functions", info_functions_command, |
6766 | info_print_args_help (_("\ | |
12615cba | 6767 | All function names or those matching REGEXPs.\n\ |
4acfdd20 | 6768 | Usage: info functions [-q] [-n] [-t TYPEREGEXP] [NAMEREGEXP]\n\ |
12615cba | 6769 | Prints the functions.\n"), |
4acfdd20 AB |
6770 | _("functions"), |
6771 | true)); | |
095252be | 6772 | set_cmd_completer_handle_brkchars (c, info_vars_funcs_command_completer); |
c906108c | 6773 | |
a8eab7c6 AB |
6774 | c = add_info ("types", info_types_command, _("\ |
6775 | All type names, or those matching REGEXP.\n\ | |
6776 | Usage: info types [-q] [REGEXP]\n\ | |
6777 | Print information about all types matching REGEXP, or all types if no\n\ | |
6778 | REGEXP is given. The optional flag -q disables printing of headers.")); | |
6779 | set_cmd_completer_handle_brkchars (c, info_types_command_completer); | |
c906108c | 6780 | |
28cd9371 PW |
6781 | const auto info_sources_opts = make_info_sources_options_def_group (nullptr); |
6782 | ||
6783 | static std::string info_sources_help | |
6784 | = gdb::option::build_help (_("\ | |
6785 | All source files in the program or those matching REGEXP.\n\ | |
6786 | Usage: info sources [OPTION]... [REGEXP]\n\ | |
6787 | By default, REGEXP is used to match anywhere in the filename.\n\ | |
6788 | \n\ | |
6789 | Options:\n\ | |
6790 | %OPTIONS%"), | |
6791 | info_sources_opts); | |
6792 | ||
6793 | c = add_info ("sources", info_sources_command, info_sources_help.c_str ()); | |
6794 | set_cmd_completer_handle_brkchars (c, info_sources_command_completer); | |
c906108c | 6795 | |
59c35742 AB |
6796 | c = add_info ("modules", info_modules_command, |
6797 | _("All module names, or those matching REGEXP.")); | |
6798 | set_cmd_completer_handle_brkchars (c, info_types_command_completer); | |
6799 | ||
0743fc83 | 6800 | add_basic_prefix_cmd ("module", class_info, _("\ |
165f8965 | 6801 | Print information about modules."), |
0743fc83 TT |
6802 | &info_module_cmdlist, "info module ", |
6803 | 0, &infolist); | |
165f8965 AB |
6804 | |
6805 | c = add_cmd ("functions", class_info, info_module_functions_command, _("\ | |
6806 | Display functions arranged by modules.\n\ | |
6807 | Usage: info module functions [-q] [-m MODREGEXP] [-t TYPEREGEXP] [REGEXP]\n\ | |
6808 | Print a summary of all functions within each Fortran module, grouped by\n\ | |
6809 | module and file. For each function the line on which the function is\n\ | |
6810 | defined is given along with the type signature and name of the function.\n\ | |
6811 | \n\ | |
6812 | If REGEXP is provided then only functions whose name matches REGEXP are\n\ | |
6813 | listed. If MODREGEXP is provided then only functions in modules matching\n\ | |
6814 | MODREGEXP are listed. If TYPEREGEXP is given then only functions whose\n\ | |
6815 | type signature matches TYPEREGEXP are listed.\n\ | |
6816 | \n\ | |
6817 | The -q flag suppresses printing some header information."), | |
6818 | &info_module_cmdlist); | |
6819 | set_cmd_completer_handle_brkchars | |
6820 | (c, info_module_var_func_command_completer); | |
6821 | ||
6822 | c = add_cmd ("variables", class_info, info_module_variables_command, _("\ | |
6823 | Display variables arranged by modules.\n\ | |
6824 | Usage: info module variables [-q] [-m MODREGEXP] [-t TYPEREGEXP] [REGEXP]\n\ | |
6825 | Print a summary of all variables within each Fortran module, grouped by\n\ | |
6826 | module and file. For each variable the line on which the variable is\n\ | |
6827 | defined is given along with the type and name of the variable.\n\ | |
6828 | \n\ | |
6829 | If REGEXP is provided then only variables whose name matches REGEXP are\n\ | |
6830 | listed. If MODREGEXP is provided then only variables in modules matching\n\ | |
6831 | MODREGEXP are listed. If TYPEREGEXP is given then only variables whose\n\ | |
6832 | type matches TYPEREGEXP are listed.\n\ | |
6833 | \n\ | |
6834 | The -q flag suppresses printing some header information."), | |
6835 | &info_module_cmdlist); | |
6836 | set_cmd_completer_handle_brkchars | |
6837 | (c, info_module_var_func_command_completer); | |
6838 | ||
c906108c | 6839 | add_com ("rbreak", class_breakpoint, rbreak_command, |
1bedd215 | 6840 | _("Set a breakpoint for all functions matching REGEXP.")); |
c906108c | 6841 | |
717d2f5a JB |
6842 | add_setshow_enum_cmd ("multiple-symbols", no_class, |
6843 | multiple_symbols_modes, &multiple_symbols_mode, | |
6844 | _("\ | |
590042fc | 6845 | Set how the debugger handles ambiguities in expressions."), _("\ |
717d2f5a JB |
6846 | Show how the debugger handles ambiguities in expressions."), _("\ |
6847 | Valid values are \"ask\", \"all\", \"cancel\", and the default is \"all\"."), | |
6848 | NULL, NULL, &setlist, &showlist); | |
6849 | ||
c011a4f4 DE |
6850 | add_setshow_boolean_cmd ("basenames-may-differ", class_obscure, |
6851 | &basenames_may_differ, _("\ | |
6852 | Set whether a source file may have multiple base names."), _("\ | |
6853 | Show whether a source file may have multiple base names."), _("\ | |
6854 | (A \"base name\" is the name of a file with the directory part removed.\n\ | |
6855 | Example: The base name of \"/home/user/hello.c\" is \"hello.c\".)\n\ | |
6856 | If set, GDB will canonicalize file names (e.g., expand symlinks)\n\ | |
6857 | before comparing them. Canonicalization is an expensive operation,\n\ | |
6858 | but it allows the same file be known by more than one base name.\n\ | |
6859 | If not set (the default), all source files are assumed to have just\n\ | |
6860 | one base name, and gdb will do file name comparisons more efficiently."), | |
6861 | NULL, NULL, | |
6862 | &setlist, &showlist); | |
6863 | ||
db0fec5c DE |
6864 | add_setshow_zuinteger_cmd ("symtab-create", no_class, &symtab_create_debug, |
6865 | _("Set debugging of symbol table creation."), | |
6866 | _("Show debugging of symbol table creation."), _("\ | |
6867 | When enabled (non-zero), debugging messages are printed when building\n\ | |
6868 | symbol tables. A value of 1 (one) normally provides enough information.\n\ | |
6869 | A value greater than 1 provides more verbose information."), | |
6870 | NULL, | |
6871 | NULL, | |
6872 | &setdebuglist, &showdebuglist); | |
45cfd468 | 6873 | |
cc485e62 DE |
6874 | add_setshow_zuinteger_cmd ("symbol-lookup", no_class, &symbol_lookup_debug, |
6875 | _("\ | |
6876 | Set debugging of symbol lookup."), _("\ | |
6877 | Show debugging of symbol lookup."), _("\ | |
6878 | When enabled (non-zero), symbol lookups are logged."), | |
6879 | NULL, NULL, | |
6880 | &setdebuglist, &showdebuglist); | |
6881 | ||
f57d2163 DE |
6882 | add_setshow_zuinteger_cmd ("symbol-cache-size", no_class, |
6883 | &new_symbol_cache_size, | |
6884 | _("Set the size of the symbol cache."), | |
6885 | _("Show the size of the symbol cache."), _("\ | |
6886 | The size of the symbol cache.\n\ | |
6887 | If zero then the symbol cache is disabled."), | |
6888 | set_symbol_cache_size_handler, NULL, | |
6889 | &maintenance_set_cmdlist, | |
6890 | &maintenance_show_cmdlist); | |
6891 | ||
6892 | add_cmd ("symbol-cache", class_maintenance, maintenance_print_symbol_cache, | |
6893 | _("Dump the symbol cache for each program space."), | |
6894 | &maintenanceprintlist); | |
6895 | ||
6896 | add_cmd ("symbol-cache-statistics", class_maintenance, | |
6897 | maintenance_print_symbol_cache_statistics, | |
6898 | _("Print symbol cache statistics for each program space."), | |
6899 | &maintenanceprintlist); | |
6900 | ||
6901 | add_cmd ("flush-symbol-cache", class_maintenance, | |
6902 | maintenance_flush_symbol_cache, | |
6903 | _("Flush the symbol cache for each program space."), | |
6904 | &maintenancelist); | |
6905 | ||
76727919 TT |
6906 | gdb::observers::executable_changed.attach (symtab_observer_executable_changed); |
6907 | gdb::observers::new_objfile.attach (symtab_new_objfile_observer); | |
6908 | gdb::observers::free_objfile.attach (symtab_free_objfile_observer); | |
c906108c | 6909 | } |