Commit | Line | Data |
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c906108c | 1 | /* Symbol table lookup for the GNU debugger, GDB. |
8926118c | 2 | |
3666a048 | 3 | Copyright (C) 1986-2021 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
19 | |
20 | #include "defs.h" | |
21 | #include "symtab.h" | |
22 | #include "gdbtypes.h" | |
23 | #include "gdbcore.h" | |
24 | #include "frame.h" | |
25 | #include "target.h" | |
26 | #include "value.h" | |
27 | #include "symfile.h" | |
28 | #include "objfiles.h" | |
29 | #include "gdbcmd.h" | |
88987551 | 30 | #include "gdb_regex.h" |
c906108c SS |
31 | #include "expression.h" |
32 | #include "language.h" | |
33 | #include "demangle.h" | |
34 | #include "inferior.h" | |
0378c332 | 35 | #include "source.h" |
a7fdf62f | 36 | #include "filenames.h" /* for FILENAME_CMP */ |
1bae87b9 | 37 | #include "objc-lang.h" |
6aecb9c2 | 38 | #include "d-lang.h" |
1f8173e6 | 39 | #include "ada-lang.h" |
a766d390 | 40 | #include "go-lang.h" |
cd6c7346 | 41 | #include "p-lang.h" |
ff013f42 | 42 | #include "addrmap.h" |
529480d0 | 43 | #include "cli/cli-utils.h" |
1ed9f74e | 44 | #include "cli/cli-style.h" |
50a5f187 | 45 | #include "cli/cli-cmds.h" |
cce0e923 | 46 | #include "fnmatch.h" |
2de7ced7 | 47 | #include "hashtab.h" |
12615cba | 48 | #include "typeprint.h" |
2de7ced7 | 49 | |
04ea0df1 | 50 | #include "gdb_obstack.h" |
fe898f56 | 51 | #include "block.h" |
de4f826b | 52 | #include "dictionary.h" |
c906108c SS |
53 | |
54 | #include <sys/types.h> | |
55 | #include <fcntl.h> | |
53ce3c39 | 56 | #include <sys/stat.h> |
c906108c | 57 | #include <ctype.h> |
015a42b4 | 58 | #include "cp-abi.h" |
71c25dea | 59 | #include "cp-support.h" |
76727919 | 60 | #include "observable.h" |
3a40aaa0 | 61 | #include "solist.h" |
9a044a89 TT |
62 | #include "macrotab.h" |
63 | #include "macroscope.h" | |
c906108c | 64 | |
270140bd | 65 | #include "parser-defs.h" |
ef0b411a | 66 | #include "completer.h" |
5ed8105e | 67 | #include "progspace-and-thread.h" |
268a13a5 | 68 | #include "gdbsupport/gdb_optional.h" |
bbf2f4df | 69 | #include "filename-seen-cache.h" |
46a62268 | 70 | #include "arch-utils.h" |
b9c04fb2 | 71 | #include <algorithm> |
7bb43059 | 72 | #include "gdbsupport/gdb_string_view.h" |
268a13a5 | 73 | #include "gdbsupport/pathstuff.h" |
1a6ff1a9 | 74 | #include "gdbsupport/common-utils.h" |
ccefe4c4 | 75 | |
ff6c39cf | 76 | /* Forward declarations for local functions. */ |
c906108c | 77 | |
0b39b52e | 78 | static void rbreak_command (const char *, int); |
c906108c | 79 | |
f8eba3c6 | 80 | static int find_line_common (struct linetable *, int, int *, int); |
c906108c | 81 | |
d12307c1 PMR |
82 | static struct block_symbol |
83 | lookup_symbol_aux (const char *name, | |
de63c46b | 84 | symbol_name_match_type match_type, |
d12307c1 PMR |
85 | const struct block *block, |
86 | const domain_enum domain, | |
87 | enum language language, | |
88 | struct field_of_this_result *); | |
fba7f19c | 89 | |
e4051eeb | 90 | static |
d12307c1 | 91 | struct block_symbol lookup_local_symbol (const char *name, |
de63c46b | 92 | symbol_name_match_type match_type, |
d12307c1 PMR |
93 | const struct block *block, |
94 | const domain_enum domain, | |
95 | enum language language); | |
8155455b | 96 | |
d12307c1 | 97 | static struct block_symbol |
c32e6a04 CB |
98 | lookup_symbol_in_objfile (struct objfile *objfile, |
99 | enum block_enum block_index, | |
fe2a438d | 100 | const char *name, const domain_enum domain); |
c906108c | 101 | |
32ac0d11 TT |
102 | /* Type of the data stored on the program space. */ |
103 | ||
104 | struct main_info | |
105 | { | |
a32ad8c5 TT |
106 | main_info () = default; |
107 | ||
108 | ~main_info () | |
109 | { | |
110 | xfree (name_of_main); | |
111 | } | |
112 | ||
32ac0d11 TT |
113 | /* Name of "main". */ |
114 | ||
a32ad8c5 | 115 | char *name_of_main = nullptr; |
32ac0d11 TT |
116 | |
117 | /* Language of "main". */ | |
118 | ||
a32ad8c5 | 119 | enum language language_of_main = language_unknown; |
32ac0d11 TT |
120 | }; |
121 | ||
a32ad8c5 TT |
122 | /* Program space key for finding name and language of "main". */ |
123 | ||
124 | static const program_space_key<main_info> main_progspace_key; | |
125 | ||
f57d2163 DE |
126 | /* The default symbol cache size. |
127 | There is no extra cpu cost for large N (except when flushing the cache, | |
128 | which is rare). The value here is just a first attempt. A better default | |
129 | value may be higher or lower. A prime number can make up for a bad hash | |
130 | computation, so that's why the number is what it is. */ | |
131 | #define DEFAULT_SYMBOL_CACHE_SIZE 1021 | |
132 | ||
133 | /* The maximum symbol cache size. | |
134 | There's no method to the decision of what value to use here, other than | |
135 | there's no point in allowing a user typo to make gdb consume all memory. */ | |
136 | #define MAX_SYMBOL_CACHE_SIZE (1024*1024) | |
137 | ||
138 | /* symbol_cache_lookup returns this if a previous lookup failed to find the | |
139 | symbol in any objfile. */ | |
d12307c1 PMR |
140 | #define SYMBOL_LOOKUP_FAILED \ |
141 | ((struct block_symbol) {(struct symbol *) 1, NULL}) | |
142 | #define SYMBOL_LOOKUP_FAILED_P(SIB) (SIB.symbol == (struct symbol *) 1) | |
f57d2163 DE |
143 | |
144 | /* Recording lookups that don't find the symbol is just as important, if not | |
145 | more so, than recording found symbols. */ | |
146 | ||
147 | enum symbol_cache_slot_state | |
148 | { | |
149 | SYMBOL_SLOT_UNUSED, | |
150 | SYMBOL_SLOT_NOT_FOUND, | |
151 | SYMBOL_SLOT_FOUND | |
152 | }; | |
153 | ||
52059ffd TT |
154 | struct symbol_cache_slot |
155 | { | |
156 | enum symbol_cache_slot_state state; | |
157 | ||
158 | /* The objfile that was current when the symbol was looked up. | |
159 | This is only needed for global blocks, but for simplicity's sake | |
160 | we allocate the space for both. If data shows the extra space used | |
161 | for static blocks is a problem, we can split things up then. | |
162 | ||
163 | Global blocks need cache lookup to include the objfile context because | |
164 | we need to account for gdbarch_iterate_over_objfiles_in_search_order | |
165 | which can traverse objfiles in, effectively, any order, depending on | |
166 | the current objfile, thus affecting which symbol is found. Normally, | |
167 | only the current objfile is searched first, and then the rest are | |
168 | searched in recorded order; but putting cache lookup inside | |
169 | gdbarch_iterate_over_objfiles_in_search_order would be awkward. | |
170 | Instead we just make the current objfile part of the context of | |
171 | cache lookup. This means we can record the same symbol multiple times, | |
172 | each with a different "current objfile" that was in effect when the | |
173 | lookup was saved in the cache, but cache space is pretty cheap. */ | |
174 | const struct objfile *objfile_context; | |
175 | ||
176 | union | |
177 | { | |
d12307c1 | 178 | struct block_symbol found; |
52059ffd TT |
179 | struct |
180 | { | |
181 | char *name; | |
182 | domain_enum domain; | |
183 | } not_found; | |
184 | } value; | |
185 | }; | |
186 | ||
82f910ea PW |
187 | /* Clear out SLOT. */ |
188 | ||
189 | static void | |
190 | symbol_cache_clear_slot (struct symbol_cache_slot *slot) | |
191 | { | |
192 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
193 | xfree (slot->value.not_found.name); | |
194 | slot->state = SYMBOL_SLOT_UNUSED; | |
195 | } | |
196 | ||
f57d2163 DE |
197 | /* Symbols don't specify global vs static block. |
198 | So keep them in separate caches. */ | |
199 | ||
200 | struct block_symbol_cache | |
201 | { | |
202 | unsigned int hits; | |
203 | unsigned int misses; | |
204 | unsigned int collisions; | |
205 | ||
206 | /* SYMBOLS is a variable length array of this size. | |
207 | One can imagine that in general one cache (global/static) should be a | |
208 | fraction of the size of the other, but there's no data at the moment | |
209 | on which to decide. */ | |
210 | unsigned int size; | |
211 | ||
52059ffd | 212 | struct symbol_cache_slot symbols[1]; |
f57d2163 DE |
213 | }; |
214 | ||
82f910ea PW |
215 | /* Clear all slots of BSC and free BSC. */ |
216 | ||
217 | static void | |
218 | destroy_block_symbol_cache (struct block_symbol_cache *bsc) | |
219 | { | |
220 | if (bsc != nullptr) | |
221 | { | |
222 | for (unsigned int i = 0; i < bsc->size; i++) | |
223 | symbol_cache_clear_slot (&bsc->symbols[i]); | |
224 | xfree (bsc); | |
225 | } | |
226 | } | |
227 | ||
f57d2163 DE |
228 | /* The symbol cache. |
229 | ||
230 | Searching for symbols in the static and global blocks over multiple objfiles | |
231 | again and again can be slow, as can searching very big objfiles. This is a | |
232 | simple cache to improve symbol lookup performance, which is critical to | |
233 | overall gdb performance. | |
234 | ||
235 | Symbols are hashed on the name, its domain, and block. | |
236 | They are also hashed on their objfile for objfile-specific lookups. */ | |
237 | ||
238 | struct symbol_cache | |
239 | { | |
3017b94d TT |
240 | symbol_cache () = default; |
241 | ||
242 | ~symbol_cache () | |
243 | { | |
82f910ea PW |
244 | destroy_block_symbol_cache (global_symbols); |
245 | destroy_block_symbol_cache (static_symbols); | |
3017b94d TT |
246 | } |
247 | ||
248 | struct block_symbol_cache *global_symbols = nullptr; | |
249 | struct block_symbol_cache *static_symbols = nullptr; | |
f57d2163 DE |
250 | }; |
251 | ||
3017b94d TT |
252 | /* Program space key for finding its symbol cache. */ |
253 | ||
254 | static const program_space_key<symbol_cache> symbol_cache_key; | |
255 | ||
45cfd468 | 256 | /* When non-zero, print debugging messages related to symtab creation. */ |
db0fec5c | 257 | unsigned int symtab_create_debug = 0; |
45cfd468 | 258 | |
cc485e62 DE |
259 | /* When non-zero, print debugging messages related to symbol lookup. */ |
260 | unsigned int symbol_lookup_debug = 0; | |
261 | ||
f57d2163 DE |
262 | /* The size of the cache is staged here. */ |
263 | static unsigned int new_symbol_cache_size = DEFAULT_SYMBOL_CACHE_SIZE; | |
264 | ||
265 | /* The current value of the symbol cache size. | |
266 | This is saved so that if the user enters a value too big we can restore | |
267 | the original value from here. */ | |
268 | static unsigned int symbol_cache_size = DEFAULT_SYMBOL_CACHE_SIZE; | |
269 | ||
491144b5 | 270 | /* True if a file may be known by two different basenames. |
c011a4f4 DE |
271 | This is the uncommon case, and significantly slows down gdb. |
272 | Default set to "off" to not slow down the common case. */ | |
491144b5 | 273 | bool basenames_may_differ = false; |
c011a4f4 | 274 | |
717d2f5a JB |
275 | /* Allow the user to configure the debugger behavior with respect |
276 | to multiple-choice menus when more than one symbol matches during | |
277 | a symbol lookup. */ | |
278 | ||
7fc830e2 MK |
279 | const char multiple_symbols_ask[] = "ask"; |
280 | const char multiple_symbols_all[] = "all"; | |
281 | const char multiple_symbols_cancel[] = "cancel"; | |
40478521 | 282 | static const char *const multiple_symbols_modes[] = |
717d2f5a JB |
283 | { |
284 | multiple_symbols_ask, | |
285 | multiple_symbols_all, | |
286 | multiple_symbols_cancel, | |
287 | NULL | |
288 | }; | |
289 | static const char *multiple_symbols_mode = multiple_symbols_all; | |
290 | ||
291 | /* Read-only accessor to AUTO_SELECT_MODE. */ | |
292 | ||
293 | const char * | |
294 | multiple_symbols_select_mode (void) | |
295 | { | |
296 | return multiple_symbols_mode; | |
297 | } | |
298 | ||
20c681d1 DE |
299 | /* Return the name of a domain_enum. */ |
300 | ||
301 | const char * | |
302 | domain_name (domain_enum e) | |
303 | { | |
304 | switch (e) | |
305 | { | |
306 | case UNDEF_DOMAIN: return "UNDEF_DOMAIN"; | |
307 | case VAR_DOMAIN: return "VAR_DOMAIN"; | |
308 | case STRUCT_DOMAIN: return "STRUCT_DOMAIN"; | |
540feddf | 309 | case MODULE_DOMAIN: return "MODULE_DOMAIN"; |
20c681d1 DE |
310 | case LABEL_DOMAIN: return "LABEL_DOMAIN"; |
311 | case COMMON_BLOCK_DOMAIN: return "COMMON_BLOCK_DOMAIN"; | |
312 | default: gdb_assert_not_reached ("bad domain_enum"); | |
313 | } | |
314 | } | |
315 | ||
316 | /* Return the name of a search_domain . */ | |
317 | ||
318 | const char * | |
319 | search_domain_name (enum search_domain e) | |
320 | { | |
321 | switch (e) | |
322 | { | |
323 | case VARIABLES_DOMAIN: return "VARIABLES_DOMAIN"; | |
324 | case FUNCTIONS_DOMAIN: return "FUNCTIONS_DOMAIN"; | |
325 | case TYPES_DOMAIN: return "TYPES_DOMAIN"; | |
59c35742 | 326 | case MODULES_DOMAIN: return "MODULES_DOMAIN"; |
20c681d1 DE |
327 | case ALL_DOMAIN: return "ALL_DOMAIN"; |
328 | default: gdb_assert_not_reached ("bad search_domain"); | |
329 | } | |
330 | } | |
331 | ||
43f3e411 | 332 | /* See symtab.h. */ |
db0fec5c | 333 | |
43f3e411 DE |
334 | struct symtab * |
335 | compunit_primary_filetab (const struct compunit_symtab *cust) | |
db0fec5c | 336 | { |
43f3e411 | 337 | gdb_assert (COMPUNIT_FILETABS (cust) != NULL); |
db0fec5c | 338 | |
43f3e411 DE |
339 | /* The primary file symtab is the first one in the list. */ |
340 | return COMPUNIT_FILETABS (cust); | |
341 | } | |
342 | ||
343 | /* See symtab.h. */ | |
344 | ||
345 | enum language | |
346 | compunit_language (const struct compunit_symtab *cust) | |
347 | { | |
348 | struct symtab *symtab = compunit_primary_filetab (cust); | |
349 | ||
350 | /* The language of the compunit symtab is the language of its primary | |
351 | source file. */ | |
352 | return SYMTAB_LANGUAGE (symtab); | |
db0fec5c DE |
353 | } |
354 | ||
1ed9f74e PW |
355 | /* See symtab.h. */ |
356 | ||
357 | bool | |
358 | minimal_symbol::data_p () const | |
359 | { | |
360 | return type == mst_data | |
361 | || type == mst_bss | |
362 | || type == mst_abs | |
363 | || type == mst_file_data | |
364 | || type == mst_file_bss; | |
365 | } | |
366 | ||
367 | /* See symtab.h. */ | |
368 | ||
369 | bool | |
370 | minimal_symbol::text_p () const | |
371 | { | |
372 | return type == mst_text | |
373 | || type == mst_text_gnu_ifunc | |
374 | || type == mst_data_gnu_ifunc | |
375 | || type == mst_slot_got_plt | |
376 | || type == mst_solib_trampoline | |
377 | || type == mst_file_text; | |
378 | } | |
379 | ||
4aac40c8 TT |
380 | /* See whether FILENAME matches SEARCH_NAME using the rule that we |
381 | advertise to the user. (The manual's description of linespecs | |
af529f8f JK |
382 | describes what we advertise). Returns true if they match, false |
383 | otherwise. */ | |
4aac40c8 | 384 | |
ececd218 | 385 | bool |
b57a636e | 386 | compare_filenames_for_search (const char *filename, const char *search_name) |
4aac40c8 TT |
387 | { |
388 | int len = strlen (filename); | |
b57a636e | 389 | size_t search_len = strlen (search_name); |
4aac40c8 TT |
390 | |
391 | if (len < search_len) | |
ececd218 | 392 | return false; |
4aac40c8 TT |
393 | |
394 | /* The tail of FILENAME must match. */ | |
395 | if (FILENAME_CMP (filename + len - search_len, search_name) != 0) | |
ececd218 | 396 | return false; |
4aac40c8 TT |
397 | |
398 | /* Either the names must completely match, or the character | |
399 | preceding the trailing SEARCH_NAME segment of FILENAME must be a | |
d84fca2c JK |
400 | directory separator. |
401 | ||
af529f8f JK |
402 | The check !IS_ABSOLUTE_PATH ensures SEARCH_NAME "/dir/file.c" |
403 | cannot match FILENAME "/path//dir/file.c" - as user has requested | |
404 | absolute path. The sama applies for "c:\file.c" possibly | |
405 | incorrectly hypothetically matching "d:\dir\c:\file.c". | |
406 | ||
d84fca2c JK |
407 | The HAS_DRIVE_SPEC purpose is to make FILENAME "c:file.c" |
408 | compatible with SEARCH_NAME "file.c". In such case a compiler had | |
409 | to put the "c:file.c" name into debug info. Such compatibility | |
410 | works only on GDB built for DOS host. */ | |
4aac40c8 | 411 | return (len == search_len |
af529f8f JK |
412 | || (!IS_ABSOLUTE_PATH (search_name) |
413 | && IS_DIR_SEPARATOR (filename[len - search_len - 1])) | |
4aac40c8 TT |
414 | || (HAS_DRIVE_SPEC (filename) |
415 | && STRIP_DRIVE_SPEC (filename) == &filename[len - search_len])); | |
416 | } | |
417 | ||
cce0e923 DE |
418 | /* Same as compare_filenames_for_search, but for glob-style patterns. |
419 | Heads up on the order of the arguments. They match the order of | |
420 | compare_filenames_for_search, but it's the opposite of the order of | |
421 | arguments to gdb_filename_fnmatch. */ | |
422 | ||
ececd218 | 423 | bool |
cce0e923 DE |
424 | compare_glob_filenames_for_search (const char *filename, |
425 | const char *search_name) | |
426 | { | |
427 | /* We rely on the property of glob-style patterns with FNM_FILE_NAME that | |
428 | all /s have to be explicitly specified. */ | |
429 | int file_path_elements = count_path_elements (filename); | |
430 | int search_path_elements = count_path_elements (search_name); | |
431 | ||
432 | if (search_path_elements > file_path_elements) | |
ececd218 | 433 | return false; |
cce0e923 DE |
434 | |
435 | if (IS_ABSOLUTE_PATH (search_name)) | |
436 | { | |
437 | return (search_path_elements == file_path_elements | |
438 | && gdb_filename_fnmatch (search_name, filename, | |
439 | FNM_FILE_NAME | FNM_NOESCAPE) == 0); | |
440 | } | |
441 | ||
442 | { | |
443 | const char *file_to_compare | |
444 | = strip_leading_path_elements (filename, | |
445 | file_path_elements - search_path_elements); | |
446 | ||
447 | return gdb_filename_fnmatch (search_name, file_to_compare, | |
448 | FNM_FILE_NAME | FNM_NOESCAPE) == 0; | |
449 | } | |
450 | } | |
451 | ||
f8eba3c6 TT |
452 | /* Check for a symtab of a specific name by searching some symtabs. |
453 | This is a helper function for callbacks of iterate_over_symtabs. | |
c906108c | 454 | |
b2d23133 DE |
455 | If NAME is not absolute, then REAL_PATH is NULL |
456 | If NAME is absolute, then REAL_PATH is the gdb_realpath form of NAME. | |
457 | ||
14bc53a8 PA |
458 | The return value, NAME, REAL_PATH and CALLBACK are identical to the |
459 | `map_symtabs_matching_filename' method of quick_symbol_functions. | |
f8eba3c6 | 460 | |
43f3e411 DE |
461 | FIRST and AFTER_LAST indicate the range of compunit symtabs to search. |
462 | Each symtab within the specified compunit symtab is also searched. | |
463 | AFTER_LAST is one past the last compunit symtab to search; NULL means to | |
f8eba3c6 TT |
464 | search until the end of the list. */ |
465 | ||
14bc53a8 | 466 | bool |
f8eba3c6 | 467 | iterate_over_some_symtabs (const char *name, |
f8eba3c6 | 468 | const char *real_path, |
43f3e411 | 469 | struct compunit_symtab *first, |
14bc53a8 PA |
470 | struct compunit_symtab *after_last, |
471 | gdb::function_view<bool (symtab *)> callback) | |
c906108c | 472 | { |
43f3e411 | 473 | struct compunit_symtab *cust; |
c011a4f4 | 474 | const char* base_name = lbasename (name); |
1f84b619 | 475 | |
43f3e411 | 476 | for (cust = first; cust != NULL && cust != after_last; cust = cust->next) |
f079a2e5 | 477 | { |
5accd1a0 | 478 | for (symtab *s : compunit_filetabs (cust)) |
a94e8645 | 479 | { |
43f3e411 DE |
480 | if (compare_filenames_for_search (s->filename, name)) |
481 | { | |
14bc53a8 PA |
482 | if (callback (s)) |
483 | return true; | |
43f3e411 DE |
484 | continue; |
485 | } | |
a94e8645 | 486 | |
43f3e411 DE |
487 | /* Before we invoke realpath, which can get expensive when many |
488 | files are involved, do a quick comparison of the basenames. */ | |
489 | if (! basenames_may_differ | |
490 | && FILENAME_CMP (base_name, lbasename (s->filename)) != 0) | |
491 | continue; | |
a94e8645 | 492 | |
43f3e411 | 493 | if (compare_filenames_for_search (symtab_to_fullname (s), name)) |
a94e8645 | 494 | { |
14bc53a8 PA |
495 | if (callback (s)) |
496 | return true; | |
a94e8645 DE |
497 | continue; |
498 | } | |
43f3e411 DE |
499 | |
500 | /* If the user gave us an absolute path, try to find the file in | |
501 | this symtab and use its absolute path. */ | |
502 | if (real_path != NULL) | |
503 | { | |
504 | const char *fullname = symtab_to_fullname (s); | |
505 | ||
506 | gdb_assert (IS_ABSOLUTE_PATH (real_path)); | |
507 | gdb_assert (IS_ABSOLUTE_PATH (name)); | |
7e785608 TV |
508 | gdb::unique_xmalloc_ptr<char> fullname_real_path |
509 | = gdb_realpath (fullname); | |
510 | fullname = fullname_real_path.get (); | |
43f3e411 DE |
511 | if (FILENAME_CMP (real_path, fullname) == 0) |
512 | { | |
14bc53a8 PA |
513 | if (callback (s)) |
514 | return true; | |
43f3e411 DE |
515 | continue; |
516 | } | |
517 | } | |
a94e8645 | 518 | } |
f8eba3c6 | 519 | } |
58d370e0 | 520 | |
14bc53a8 | 521 | return false; |
f8eba3c6 TT |
522 | } |
523 | ||
524 | /* Check for a symtab of a specific name; first in symtabs, then in | |
525 | psymtabs. *If* there is no '/' in the name, a match after a '/' | |
526 | in the symtab filename will also work. | |
527 | ||
14bc53a8 PA |
528 | Calls CALLBACK with each symtab that is found. If CALLBACK returns |
529 | true, the search stops. */ | |
f8eba3c6 TT |
530 | |
531 | void | |
532 | iterate_over_symtabs (const char *name, | |
14bc53a8 | 533 | gdb::function_view<bool (symtab *)> callback) |
f8eba3c6 | 534 | { |
14bc53a8 | 535 | gdb::unique_xmalloc_ptr<char> real_path; |
f8eba3c6 TT |
536 | |
537 | /* Here we are interested in canonicalizing an absolute path, not | |
538 | absolutizing a relative path. */ | |
539 | if (IS_ABSOLUTE_PATH (name)) | |
540 | { | |
14278e1f | 541 | real_path = gdb_realpath (name); |
14bc53a8 | 542 | gdb_assert (IS_ABSOLUTE_PATH (real_path.get ())); |
f8eba3c6 TT |
543 | } |
544 | ||
2030c079 | 545 | for (objfile *objfile : current_program_space->objfiles ()) |
14bc53a8 PA |
546 | { |
547 | if (iterate_over_some_symtabs (name, real_path.get (), | |
548 | objfile->compunit_symtabs, NULL, | |
549 | callback)) | |
f8eba3c6 | 550 | return; |
14bc53a8 | 551 | } |
f8eba3c6 | 552 | |
c906108c SS |
553 | /* Same search rules as above apply here, but now we look thru the |
554 | psymtabs. */ | |
555 | ||
2030c079 | 556 | for (objfile *objfile : current_program_space->objfiles ()) |
14bc53a8 | 557 | { |
4d080b46 TT |
558 | if (objfile->map_symtabs_matching_filename (name, real_path.get (), |
559 | callback)) | |
f8eba3c6 | 560 | return; |
14bc53a8 | 561 | } |
c906108c | 562 | } |
f8eba3c6 TT |
563 | |
564 | /* A wrapper for iterate_over_symtabs that returns the first matching | |
565 | symtab, or NULL. */ | |
566 | ||
567 | struct symtab * | |
568 | lookup_symtab (const char *name) | |
569 | { | |
570 | struct symtab *result = NULL; | |
571 | ||
14bc53a8 PA |
572 | iterate_over_symtabs (name, [&] (symtab *symtab) |
573 | { | |
574 | result = symtab; | |
575 | return true; | |
576 | }); | |
577 | ||
f8eba3c6 TT |
578 | return result; |
579 | } | |
580 | ||
c906108c SS |
581 | \f |
582 | /* Mangle a GDB method stub type. This actually reassembles the pieces of the | |
583 | full method name, which consist of the class name (from T), the unadorned | |
584 | method name from METHOD_ID, and the signature for the specific overload, | |
c378eb4e | 585 | specified by SIGNATURE_ID. Note that this function is g++ specific. */ |
c906108c SS |
586 | |
587 | char * | |
fba45db2 | 588 | gdb_mangle_name (struct type *type, int method_id, int signature_id) |
c906108c SS |
589 | { |
590 | int mangled_name_len; | |
591 | char *mangled_name; | |
592 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
593 | struct fn_field *method = &f[signature_id]; | |
0d5cff50 | 594 | const char *field_name = TYPE_FN_FIELDLIST_NAME (type, method_id); |
1d06ead6 | 595 | const char *physname = TYPE_FN_FIELD_PHYSNAME (f, signature_id); |
7d93a1e0 | 596 | const char *newname = type->name (); |
c906108c SS |
597 | |
598 | /* Does the form of physname indicate that it is the full mangled name | |
599 | of a constructor (not just the args)? */ | |
600 | int is_full_physname_constructor; | |
601 | ||
602 | int is_constructor; | |
015a42b4 | 603 | int is_destructor = is_destructor_name (physname); |
c906108c | 604 | /* Need a new type prefix. */ |
e6a959d6 PA |
605 | const char *const_prefix = method->is_const ? "C" : ""; |
606 | const char *volatile_prefix = method->is_volatile ? "V" : ""; | |
c906108c SS |
607 | char buf[20]; |
608 | int len = (newname == NULL ? 0 : strlen (newname)); | |
609 | ||
43630227 PS |
610 | /* Nothing to do if physname already contains a fully mangled v3 abi name |
611 | or an operator name. */ | |
612 | if ((physname[0] == '_' && physname[1] == 'Z') | |
613 | || is_operator_name (field_name)) | |
235d1e03 EZ |
614 | return xstrdup (physname); |
615 | ||
015a42b4 | 616 | is_full_physname_constructor = is_constructor_name (physname); |
c906108c | 617 | |
3e43a32a MS |
618 | is_constructor = is_full_physname_constructor |
619 | || (newname && strcmp (field_name, newname) == 0); | |
c906108c SS |
620 | |
621 | if (!is_destructor) | |
61012eef | 622 | is_destructor = (startswith (physname, "__dt")); |
c906108c SS |
623 | |
624 | if (is_destructor || is_full_physname_constructor) | |
625 | { | |
c5aa993b JM |
626 | mangled_name = (char *) xmalloc (strlen (physname) + 1); |
627 | strcpy (mangled_name, physname); | |
c906108c SS |
628 | return mangled_name; |
629 | } | |
630 | ||
631 | if (len == 0) | |
632 | { | |
8c042590 | 633 | xsnprintf (buf, sizeof (buf), "__%s%s", const_prefix, volatile_prefix); |
c906108c SS |
634 | } |
635 | else if (physname[0] == 't' || physname[0] == 'Q') | |
636 | { | |
637 | /* The physname for template and qualified methods already includes | |
dda83cd7 | 638 | the class name. */ |
8c042590 | 639 | xsnprintf (buf, sizeof (buf), "__%s%s", const_prefix, volatile_prefix); |
c906108c SS |
640 | newname = NULL; |
641 | len = 0; | |
642 | } | |
643 | else | |
644 | { | |
8c042590 PM |
645 | xsnprintf (buf, sizeof (buf), "__%s%s%d", const_prefix, |
646 | volatile_prefix, len); | |
c906108c SS |
647 | } |
648 | mangled_name_len = ((is_constructor ? 0 : strlen (field_name)) | |
235d1e03 | 649 | + strlen (buf) + len + strlen (physname) + 1); |
c906108c | 650 | |
433759f7 MS |
651 | mangled_name = (char *) xmalloc (mangled_name_len); |
652 | if (is_constructor) | |
653 | mangled_name[0] = '\0'; | |
654 | else | |
655 | strcpy (mangled_name, field_name); | |
656 | ||
c906108c SS |
657 | strcat (mangled_name, buf); |
658 | /* If the class doesn't have a name, i.e. newname NULL, then we just | |
659 | mangle it using 0 for the length of the class. Thus it gets mangled | |
c378eb4e | 660 | as something starting with `::' rather than `classname::'. */ |
c906108c SS |
661 | if (newname != NULL) |
662 | strcat (mangled_name, newname); | |
663 | ||
664 | strcat (mangled_name, physname); | |
665 | return (mangled_name); | |
666 | } | |
12af6855 | 667 | |
ff985671 | 668 | /* See symtab.h. */ |
eca864fe | 669 | |
b250c185 | 670 | void |
ff985671 TT |
671 | general_symbol_info::set_demangled_name (const char *name, |
672 | struct obstack *obstack) | |
b250c185 | 673 | { |
ff985671 | 674 | if (language () == language_ada) |
f85f34ed TT |
675 | { |
676 | if (name == NULL) | |
677 | { | |
ff985671 TT |
678 | ada_mangled = 0; |
679 | language_specific.obstack = obstack; | |
f85f34ed TT |
680 | } |
681 | else | |
682 | { | |
ff985671 TT |
683 | ada_mangled = 1; |
684 | language_specific.demangled_name = name; | |
f85f34ed TT |
685 | } |
686 | } | |
29df156d | 687 | else |
ff985671 | 688 | language_specific.demangled_name = name; |
b250c185 SW |
689 | } |
690 | ||
12af6855 | 691 | \f |
89aad1f9 | 692 | /* Initialize the language dependent portion of a symbol |
c378eb4e | 693 | depending upon the language for the symbol. */ |
eca864fe | 694 | |
89aad1f9 | 695 | void |
d3ecddab CB |
696 | general_symbol_info::set_language (enum language language, |
697 | struct obstack *obstack) | |
89aad1f9 | 698 | { |
d3ecddab | 699 | m_language = language; |
c1b5c1eb CB |
700 | if (language == language_cplus |
701 | || language == language_d | |
702 | || language == language_go | |
703 | || language == language_objc | |
704 | || language == language_fortran) | |
89aad1f9 | 705 | { |
ff985671 | 706 | set_demangled_name (NULL, obstack); |
f85f34ed | 707 | } |
c1b5c1eb | 708 | else if (language == language_ada) |
f85f34ed | 709 | { |
d3ecddab CB |
710 | gdb_assert (ada_mangled == 0); |
711 | language_specific.obstack = obstack; | |
89aad1f9 | 712 | } |
89aad1f9 EZ |
713 | else |
714 | { | |
d3ecddab | 715 | memset (&language_specific, 0, sizeof (language_specific)); |
89aad1f9 EZ |
716 | } |
717 | } | |
718 | ||
2de7ced7 DJ |
719 | /* Functions to initialize a symbol's mangled name. */ |
720 | ||
04a679b8 TT |
721 | /* Objects of this type are stored in the demangled name hash table. */ |
722 | struct demangled_name_entry | |
723 | { | |
3a494279 CB |
724 | demangled_name_entry (gdb::string_view mangled_name) |
725 | : mangled (mangled_name) {} | |
726 | ||
7bb43059 | 727 | gdb::string_view mangled; |
403772ef | 728 | enum language language; |
5396ae17 | 729 | gdb::unique_xmalloc_ptr<char> demangled; |
04a679b8 TT |
730 | }; |
731 | ||
732 | /* Hash function for the demangled name hash. */ | |
eca864fe | 733 | |
04a679b8 TT |
734 | static hashval_t |
735 | hash_demangled_name_entry (const void *data) | |
736 | { | |
19ba03f4 SM |
737 | const struct demangled_name_entry *e |
738 | = (const struct demangled_name_entry *) data; | |
433759f7 | 739 | |
1a6ff1a9 | 740 | return fast_hash (e->mangled.data (), e->mangled.length ()); |
04a679b8 TT |
741 | } |
742 | ||
743 | /* Equality function for the demangled name hash. */ | |
eca864fe | 744 | |
04a679b8 TT |
745 | static int |
746 | eq_demangled_name_entry (const void *a, const void *b) | |
747 | { | |
19ba03f4 SM |
748 | const struct demangled_name_entry *da |
749 | = (const struct demangled_name_entry *) a; | |
750 | const struct demangled_name_entry *db | |
751 | = (const struct demangled_name_entry *) b; | |
433759f7 | 752 | |
7bb43059 | 753 | return da->mangled == db->mangled; |
04a679b8 TT |
754 | } |
755 | ||
3a494279 CB |
756 | static void |
757 | free_demangled_name_entry (void *data) | |
758 | { | |
759 | struct demangled_name_entry *e | |
760 | = (struct demangled_name_entry *) data; | |
761 | ||
762 | e->~demangled_name_entry(); | |
763 | } | |
764 | ||
2de7ced7 DJ |
765 | /* Create the hash table used for demangled names. Each hash entry is |
766 | a pair of strings; one for the mangled name and one for the demangled | |
767 | name. The entry is hashed via just the mangled name. */ | |
768 | ||
769 | static void | |
0f14768a | 770 | create_demangled_names_hash (struct objfile_per_bfd_storage *per_bfd) |
2de7ced7 DJ |
771 | { |
772 | /* Choose 256 as the starting size of the hash table, somewhat arbitrarily. | |
9af17804 | 773 | The hash table code will round this up to the next prime number. |
2de7ced7 | 774 | Choosing a much larger table size wastes memory, and saves only about |
f8bab2d6 CB |
775 | 1% in symbol reading. However, if the minsym count is already |
776 | initialized (e.g. because symbol name setting was deferred to | |
777 | a background thread) we can initialize the hashtable with a count | |
778 | based on that, because we will almost certainly have at least that | |
779 | many entries. If we have a nonzero number but less than 256, | |
780 | we still stay with 256 to have some space for psymbols, etc. */ | |
781 | ||
782 | /* htab will expand the table when it is 3/4th full, so we account for that | |
783 | here. +2 to round up. */ | |
784 | int minsym_based_count = (per_bfd->minimal_symbol_count + 2) / 3 * 4; | |
785 | int count = std::max (per_bfd->minimal_symbol_count, minsym_based_count); | |
2de7ced7 | 786 | |
db92718b | 787 | per_bfd->demangled_names_hash.reset (htab_create_alloc |
f8bab2d6 | 788 | (count, hash_demangled_name_entry, eq_demangled_name_entry, |
3a494279 | 789 | free_demangled_name_entry, xcalloc, xfree)); |
2de7ced7 | 790 | } |
12af6855 | 791 | |
d55c9a68 | 792 | /* See symtab.h */ |
12af6855 | 793 | |
d55c9a68 | 794 | char * |
2de7ced7 DJ |
795 | symbol_find_demangled_name (struct general_symbol_info *gsymbol, |
796 | const char *mangled) | |
12af6855 | 797 | { |
12af6855 | 798 | char *demangled = NULL; |
8b302db8 | 799 | int i; |
12af6855 | 800 | |
c1b5c1eb CB |
801 | if (gsymbol->language () == language_unknown) |
802 | gsymbol->m_language = language_auto; | |
1bae87b9 | 803 | |
c1b5c1eb | 804 | if (gsymbol->language () != language_auto) |
1bae87b9 | 805 | { |
c1b5c1eb | 806 | const struct language_defn *lang = language_def (gsymbol->language ()); |
8b302db8 | 807 | |
6f827019 | 808 | lang->sniff_from_mangled_name (mangled, &demangled); |
8b302db8 | 809 | return demangled; |
6aecb9c2 | 810 | } |
8b302db8 TT |
811 | |
812 | for (i = language_unknown; i < nr_languages; ++i) | |
a766d390 | 813 | { |
8b302db8 TT |
814 | enum language l = (enum language) i; |
815 | const struct language_defn *lang = language_def (l); | |
816 | ||
6f827019 | 817 | if (lang->sniff_from_mangled_name (mangled, &demangled)) |
a766d390 | 818 | { |
c1b5c1eb | 819 | gsymbol->m_language = l; |
a766d390 DE |
820 | return demangled; |
821 | } | |
822 | } | |
823 | ||
2de7ced7 DJ |
824 | return NULL; |
825 | } | |
826 | ||
980cae7a | 827 | /* Set both the mangled and demangled (if any) names for GSYMBOL based |
04a679b8 TT |
828 | on LINKAGE_NAME and LEN. Ordinarily, NAME is copied onto the |
829 | objfile's obstack; but if COPY_NAME is 0 and if NAME is | |
830 | NUL-terminated, then this function assumes that NAME is already | |
831 | correctly saved (either permanently or with a lifetime tied to the | |
832 | objfile), and it will not be copied. | |
833 | ||
834 | The hash table corresponding to OBJFILE is used, and the memory | |
84a1243b | 835 | comes from the per-BFD storage_obstack. LINKAGE_NAME is copied, |
04a679b8 | 836 | so the pointer can be discarded after calling this function. */ |
2de7ced7 DJ |
837 | |
838 | void | |
4d4eaa30 CB |
839 | general_symbol_info::compute_and_set_names (gdb::string_view linkage_name, |
840 | bool copy_name, | |
841 | objfile_per_bfd_storage *per_bfd, | |
842 | gdb::optional<hashval_t> hash) | |
2de7ced7 | 843 | { |
04a679b8 | 844 | struct demangled_name_entry **slot; |
2de7ced7 | 845 | |
4d4eaa30 | 846 | if (language () == language_ada) |
b06ead72 JB |
847 | { |
848 | /* In Ada, we do the symbol lookups using the mangled name, so | |
dda83cd7 | 849 | we can save some space by not storing the demangled name. */ |
92174eea | 850 | if (!copy_name) |
4d4eaa30 | 851 | m_name = linkage_name.data (); |
04a679b8 | 852 | else |
869d8950 TT |
853 | m_name = obstack_strndup (&per_bfd->storage_obstack, |
854 | linkage_name.data (), | |
855 | linkage_name.length ()); | |
ff985671 | 856 | set_demangled_name (NULL, &per_bfd->storage_obstack); |
b06ead72 JB |
857 | |
858 | return; | |
859 | } | |
860 | ||
84a1243b | 861 | if (per_bfd->demangled_names_hash == NULL) |
0f14768a | 862 | create_demangled_names_hash (per_bfd); |
04a679b8 | 863 | |
31edb802 | 864 | struct demangled_name_entry entry (linkage_name); |
e76b2246 CB |
865 | if (!hash.has_value ()) |
866 | hash = hash_demangled_name_entry (&entry); | |
04a679b8 | 867 | slot = ((struct demangled_name_entry **) |
dda83cd7 | 868 | htab_find_slot_with_hash (per_bfd->demangled_names_hash.get (), |
e76b2246 | 869 | &entry, *hash, INSERT)); |
2de7ced7 | 870 | |
57d75002 CB |
871 | /* The const_cast is safe because the only reason it is already |
872 | initialized is if we purposefully set it from a background | |
873 | thread to avoid doing the work here. However, it is still | |
874 | allocated from the heap and needs to be freed by us, just | |
875 | like if we called symbol_find_demangled_name here. If this is | |
876 | nullptr, we call symbol_find_demangled_name below, but we put | |
877 | this smart pointer here to be sure that we don't leak this name. */ | |
878 | gdb::unique_xmalloc_ptr<char> demangled_name | |
879 | (const_cast<char *> (language_specific.demangled_name)); | |
880 | ||
2de7ced7 | 881 | /* If this name is not in the hash table, add it. */ |
a766d390 DE |
882 | if (*slot == NULL |
883 | /* A C version of the symbol may have already snuck into the table. | |
884 | This happens to, e.g., main.init (__go_init_main). Cope. */ | |
4d4eaa30 | 885 | || (language () == language_go && (*slot)->demangled == nullptr)) |
2de7ced7 | 886 | { |
0c921b21 | 887 | /* A 0-terminated copy of the linkage name. Callers must set COPY_NAME |
dda83cd7 SM |
888 | to true if the string might not be nullterminated. We have to make |
889 | this copy because demangling needs a nullterminated string. */ | |
31edb802 | 890 | gdb::string_view linkage_name_copy; |
0c921b21 CB |
891 | if (copy_name) |
892 | { | |
31edb802 CB |
893 | char *alloc_name = (char *) alloca (linkage_name.length () + 1); |
894 | memcpy (alloc_name, linkage_name.data (), linkage_name.length ()); | |
895 | alloc_name[linkage_name.length ()] = '\0'; | |
0c921b21 | 896 | |
31edb802 CB |
897 | linkage_name_copy = gdb::string_view (alloc_name, |
898 | linkage_name.length ()); | |
0c921b21 CB |
899 | } |
900 | else | |
901 | linkage_name_copy = linkage_name; | |
902 | ||
57d75002 CB |
903 | if (demangled_name.get () == nullptr) |
904 | demangled_name.reset | |
905 | (symbol_find_demangled_name (this, linkage_name_copy.data ())); | |
2de7ced7 | 906 | |
04a679b8 | 907 | /* Suppose we have demangled_name==NULL, copy_name==0, and |
9c37b5ae | 908 | linkage_name_copy==linkage_name. In this case, we already have the |
04a679b8 TT |
909 | mangled name saved, and we don't have a demangled name. So, |
910 | you might think we could save a little space by not recording | |
911 | this in the hash table at all. | |
5396ae17 | 912 | |
04a679b8 TT |
913 | It turns out that it is actually important to still save such |
914 | an entry in the hash table, because storing this name gives | |
705b5767 | 915 | us better bcache hit rates for partial symbols. */ |
0c921b21 | 916 | if (!copy_name) |
04a679b8 | 917 | { |
224c3ddb SM |
918 | *slot |
919 | = ((struct demangled_name_entry *) | |
920 | obstack_alloc (&per_bfd->storage_obstack, | |
5396ae17 | 921 | sizeof (demangled_name_entry))); |
31edb802 | 922 | new (*slot) demangled_name_entry (linkage_name); |
04a679b8 TT |
923 | } |
924 | else | |
925 | { | |
926 | /* If we must copy the mangled name, put it directly after | |
5396ae17 | 927 | the struct so we can have a single allocation. */ |
224c3ddb SM |
928 | *slot |
929 | = ((struct demangled_name_entry *) | |
930 | obstack_alloc (&per_bfd->storage_obstack, | |
31edb802 CB |
931 | sizeof (demangled_name_entry) |
932 | + linkage_name.length () + 1)); | |
5396ae17 | 933 | char *mangled_ptr = reinterpret_cast<char *> (*slot + 1); |
31edb802 CB |
934 | memcpy (mangled_ptr, linkage_name.data (), linkage_name.length ()); |
935 | mangled_ptr [linkage_name.length ()] = '\0'; | |
3a494279 | 936 | new (*slot) demangled_name_entry |
31edb802 | 937 | (gdb::string_view (mangled_ptr, linkage_name.length ())); |
04a679b8 | 938 | } |
d55c9a68 | 939 | (*slot)->demangled = std::move (demangled_name); |
4d4eaa30 | 940 | (*slot)->language = language (); |
2de7ced7 | 941 | } |
4d4eaa30 CB |
942 | else if (language () == language_unknown || language () == language_auto) |
943 | m_language = (*slot)->language; | |
2de7ced7 | 944 | |
4d4eaa30 | 945 | m_name = (*slot)->mangled.data (); |
ff985671 | 946 | set_demangled_name ((*slot)->demangled.get (), &per_bfd->storage_obstack); |
2de7ced7 DJ |
947 | } |
948 | ||
c9d95fa3 | 949 | /* See symtab.h. */ |
22abf04a | 950 | |
0d5cff50 | 951 | const char * |
c9d95fa3 | 952 | general_symbol_info::natural_name () const |
22abf04a | 953 | { |
c1b5c1eb | 954 | switch (language ()) |
22abf04a | 955 | { |
1f8173e6 | 956 | case language_cplus: |
6aecb9c2 | 957 | case language_d: |
a766d390 | 958 | case language_go: |
1f8173e6 | 959 | case language_objc: |
f55ee35c | 960 | case language_fortran: |
8c87a452 | 961 | case language_rust: |
7151c1af TT |
962 | if (language_specific.demangled_name != nullptr) |
963 | return language_specific.demangled_name; | |
1f8173e6 PH |
964 | break; |
965 | case language_ada: | |
c9d95fa3 | 966 | return ada_decode_symbol (this); |
1f8173e6 PH |
967 | default: |
968 | break; | |
22abf04a | 969 | } |
4d4eaa30 | 970 | return linkage_name (); |
22abf04a DC |
971 | } |
972 | ||
c9d95fa3 | 973 | /* See symtab.h. */ |
eca864fe | 974 | |
0d5cff50 | 975 | const char * |
c9d95fa3 | 976 | general_symbol_info::demangled_name () const |
9cc0d196 | 977 | { |
c6e5ee5e SDJ |
978 | const char *dem_name = NULL; |
979 | ||
c1b5c1eb | 980 | switch (language ()) |
1f8173e6 PH |
981 | { |
982 | case language_cplus: | |
6aecb9c2 | 983 | case language_d: |
a766d390 | 984 | case language_go: |
1f8173e6 | 985 | case language_objc: |
f55ee35c | 986 | case language_fortran: |
8c87a452 | 987 | case language_rust: |
7151c1af | 988 | dem_name = language_specific.demangled_name; |
1f8173e6 PH |
989 | break; |
990 | case language_ada: | |
c9d95fa3 | 991 | dem_name = ada_decode_symbol (this); |
1f8173e6 PH |
992 | break; |
993 | default: | |
994 | break; | |
995 | } | |
c6e5ee5e | 996 | return dem_name; |
9cc0d196 | 997 | } |
fe39c653 | 998 | |
c9d95fa3 | 999 | /* See symtab.h. */ |
eca864fe | 1000 | |
0d5cff50 | 1001 | const char * |
c9d95fa3 | 1002 | general_symbol_info::search_name () const |
fc062ac6 | 1003 | { |
c1b5c1eb | 1004 | if (language () == language_ada) |
4d4eaa30 | 1005 | return linkage_name (); |
1f8173e6 | 1006 | else |
c9d95fa3 | 1007 | return natural_name (); |
4725b721 | 1008 | } |
b5ec771e PA |
1009 | |
1010 | /* See symtab.h. */ | |
1011 | ||
ebbc3a7d AB |
1012 | struct obj_section * |
1013 | general_symbol_info::obj_section (const struct objfile *objfile) const | |
1014 | { | |
a52d653e AB |
1015 | if (section_index () >= 0) |
1016 | return &objfile->sections[section_index ()]; | |
ebbc3a7d AB |
1017 | return nullptr; |
1018 | } | |
1019 | ||
1020 | /* See symtab.h. */ | |
1021 | ||
b5ec771e PA |
1022 | bool |
1023 | symbol_matches_search_name (const struct general_symbol_info *gsymbol, | |
1024 | const lookup_name_info &name) | |
1025 | { | |
1026 | symbol_name_matcher_ftype *name_match | |
c9debfb9 | 1027 | = language_def (gsymbol->language ())->get_symbol_name_matcher (name); |
c9d95fa3 | 1028 | return name_match (gsymbol->search_name (), name, NULL); |
b5ec771e PA |
1029 | } |
1030 | ||
c906108c SS |
1031 | \f |
1032 | ||
ececd218 | 1033 | /* Return true if the two sections are the same, or if they could |
94277a38 DJ |
1034 | plausibly be copies of each other, one in an original object |
1035 | file and another in a separated debug file. */ | |
1036 | ||
ececd218 | 1037 | bool |
714835d5 UW |
1038 | matching_obj_sections (struct obj_section *obj_first, |
1039 | struct obj_section *obj_second) | |
94277a38 | 1040 | { |
714835d5 UW |
1041 | asection *first = obj_first? obj_first->the_bfd_section : NULL; |
1042 | asection *second = obj_second? obj_second->the_bfd_section : NULL; | |
94277a38 DJ |
1043 | |
1044 | /* If they're the same section, then they match. */ | |
1045 | if (first == second) | |
ececd218 | 1046 | return true; |
94277a38 DJ |
1047 | |
1048 | /* If either is NULL, give up. */ | |
1049 | if (first == NULL || second == NULL) | |
ececd218 | 1050 | return false; |
94277a38 DJ |
1051 | |
1052 | /* This doesn't apply to absolute symbols. */ | |
1053 | if (first->owner == NULL || second->owner == NULL) | |
ececd218 | 1054 | return false; |
94277a38 DJ |
1055 | |
1056 | /* If they're in the same object file, they must be different sections. */ | |
1057 | if (first->owner == second->owner) | |
ececd218 | 1058 | return false; |
94277a38 DJ |
1059 | |
1060 | /* Check whether the two sections are potentially corresponding. They must | |
1061 | have the same size, address, and name. We can't compare section indexes, | |
1062 | which would be more reliable, because some sections may have been | |
1063 | stripped. */ | |
fd361982 | 1064 | if (bfd_section_size (first) != bfd_section_size (second)) |
ececd218 | 1065 | return false; |
94277a38 | 1066 | |
818f79f6 | 1067 | /* In-memory addresses may start at a different offset, relativize them. */ |
fd361982 AM |
1068 | if (bfd_section_vma (first) - bfd_get_start_address (first->owner) |
1069 | != bfd_section_vma (second) - bfd_get_start_address (second->owner)) | |
ececd218 | 1070 | return false; |
94277a38 | 1071 | |
fd361982 AM |
1072 | if (bfd_section_name (first) == NULL |
1073 | || bfd_section_name (second) == NULL | |
1074 | || strcmp (bfd_section_name (first), bfd_section_name (second)) != 0) | |
ececd218 | 1075 | return false; |
94277a38 DJ |
1076 | |
1077 | /* Otherwise check that they are in corresponding objfiles. */ | |
1078 | ||
9d7c67bf | 1079 | struct objfile *obj = NULL; |
2030c079 | 1080 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
1081 | if (objfile->obfd == first->owner) |
1082 | { | |
1083 | obj = objfile; | |
1084 | break; | |
1085 | } | |
94277a38 DJ |
1086 | gdb_assert (obj != NULL); |
1087 | ||
1088 | if (obj->separate_debug_objfile != NULL | |
1089 | && obj->separate_debug_objfile->obfd == second->owner) | |
ececd218 | 1090 | return true; |
94277a38 DJ |
1091 | if (obj->separate_debug_objfile_backlink != NULL |
1092 | && obj->separate_debug_objfile_backlink->obfd == second->owner) | |
ececd218 | 1093 | return true; |
94277a38 | 1094 | |
ececd218 | 1095 | return false; |
94277a38 | 1096 | } |
c5aa993b | 1097 | |
2097ae25 DE |
1098 | /* See symtab.h. */ |
1099 | ||
1100 | void | |
1101 | expand_symtab_containing_pc (CORE_ADDR pc, struct obj_section *section) | |
c906108c | 1102 | { |
77e371c0 | 1103 | struct bound_minimal_symbol msymbol; |
8a48e967 DJ |
1104 | |
1105 | /* If we know that this is not a text address, return failure. This is | |
1106 | necessary because we loop based on texthigh and textlow, which do | |
1107 | not include the data ranges. */ | |
77e371c0 | 1108 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); |
1ed9f74e | 1109 | if (msymbol.minsym && msymbol.minsym->data_p ()) |
2097ae25 | 1110 | return; |
c906108c | 1111 | |
2030c079 | 1112 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 | 1113 | { |
4d080b46 TT |
1114 | struct compunit_symtab *cust |
1115 | = objfile->find_pc_sect_compunit_symtab (msymbol, pc, section, 0); | |
aed57c53 TT |
1116 | if (cust) |
1117 | return; | |
1118 | } | |
c906108c | 1119 | } |
c906108c | 1120 | \f |
f57d2163 DE |
1121 | /* Hash function for the symbol cache. */ |
1122 | ||
1123 | static unsigned int | |
1124 | hash_symbol_entry (const struct objfile *objfile_context, | |
1125 | const char *name, domain_enum domain) | |
1126 | { | |
1127 | unsigned int hash = (uintptr_t) objfile_context; | |
1128 | ||
1129 | if (name != NULL) | |
1130 | hash += htab_hash_string (name); | |
1131 | ||
2c26b84f DE |
1132 | /* Because of symbol_matches_domain we need VAR_DOMAIN and STRUCT_DOMAIN |
1133 | to map to the same slot. */ | |
1134 | if (domain == STRUCT_DOMAIN) | |
1135 | hash += VAR_DOMAIN * 7; | |
1136 | else | |
1137 | hash += domain * 7; | |
f57d2163 DE |
1138 | |
1139 | return hash; | |
1140 | } | |
1141 | ||
1142 | /* Equality function for the symbol cache. */ | |
1143 | ||
1144 | static int | |
1145 | eq_symbol_entry (const struct symbol_cache_slot *slot, | |
1146 | const struct objfile *objfile_context, | |
1147 | const char *name, domain_enum domain) | |
1148 | { | |
1149 | const char *slot_name; | |
1150 | domain_enum slot_domain; | |
1151 | ||
1152 | if (slot->state == SYMBOL_SLOT_UNUSED) | |
1153 | return 0; | |
1154 | ||
1155 | if (slot->objfile_context != objfile_context) | |
1156 | return 0; | |
1157 | ||
1158 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
1159 | { | |
1160 | slot_name = slot->value.not_found.name; | |
1161 | slot_domain = slot->value.not_found.domain; | |
1162 | } | |
1163 | else | |
1164 | { | |
987012b8 | 1165 | slot_name = slot->value.found.symbol->search_name (); |
d12307c1 | 1166 | slot_domain = SYMBOL_DOMAIN (slot->value.found.symbol); |
f57d2163 DE |
1167 | } |
1168 | ||
1169 | /* NULL names match. */ | |
1170 | if (slot_name == NULL && name == NULL) | |
1171 | { | |
1172 | /* But there's no point in calling symbol_matches_domain in the | |
1173 | SYMBOL_SLOT_FOUND case. */ | |
1174 | if (slot_domain != domain) | |
1175 | return 0; | |
1176 | } | |
1177 | else if (slot_name != NULL && name != NULL) | |
1178 | { | |
b5ec771e PA |
1179 | /* It's important that we use the same comparison that was done |
1180 | the first time through. If the slot records a found symbol, | |
1181 | then this means using the symbol name comparison function of | |
987012b8 | 1182 | the symbol's language with symbol->search_name (). See |
b5ec771e PA |
1183 | dictionary.c. It also means using symbol_matches_domain for |
1184 | found symbols. See block.c. | |
f57d2163 DE |
1185 | |
1186 | If the slot records a not-found symbol, then require a precise match. | |
1187 | We could still be lax with whitespace like strcmp_iw though. */ | |
1188 | ||
1189 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
1190 | { | |
1191 | if (strcmp (slot_name, name) != 0) | |
1192 | return 0; | |
1193 | if (slot_domain != domain) | |
1194 | return 0; | |
1195 | } | |
1196 | else | |
1197 | { | |
d12307c1 | 1198 | struct symbol *sym = slot->value.found.symbol; |
b5ec771e | 1199 | lookup_name_info lookup_name (name, symbol_name_match_type::FULL); |
f57d2163 | 1200 | |
b5ec771e | 1201 | if (!SYMBOL_MATCHES_SEARCH_NAME (sym, lookup_name)) |
f57d2163 | 1202 | return 0; |
b5ec771e | 1203 | |
c1b5c1eb | 1204 | if (!symbol_matches_domain (sym->language (), slot_domain, domain)) |
f57d2163 DE |
1205 | return 0; |
1206 | } | |
1207 | } | |
1208 | else | |
1209 | { | |
1210 | /* Only one name is NULL. */ | |
1211 | return 0; | |
1212 | } | |
1213 | ||
1214 | return 1; | |
1215 | } | |
1216 | ||
1217 | /* Given a cache of size SIZE, return the size of the struct (with variable | |
1218 | length array) in bytes. */ | |
1219 | ||
1220 | static size_t | |
1221 | symbol_cache_byte_size (unsigned int size) | |
1222 | { | |
1223 | return (sizeof (struct block_symbol_cache) | |
1224 | + ((size - 1) * sizeof (struct symbol_cache_slot))); | |
1225 | } | |
1226 | ||
1227 | /* Resize CACHE. */ | |
1228 | ||
1229 | static void | |
1230 | resize_symbol_cache (struct symbol_cache *cache, unsigned int new_size) | |
1231 | { | |
1232 | /* If there's no change in size, don't do anything. | |
1233 | All caches have the same size, so we can just compare with the size | |
1234 | of the global symbols cache. */ | |
1235 | if ((cache->global_symbols != NULL | |
1236 | && cache->global_symbols->size == new_size) | |
1237 | || (cache->global_symbols == NULL | |
1238 | && new_size == 0)) | |
1239 | return; | |
1240 | ||
82f910ea PW |
1241 | destroy_block_symbol_cache (cache->global_symbols); |
1242 | destroy_block_symbol_cache (cache->static_symbols); | |
f57d2163 DE |
1243 | |
1244 | if (new_size == 0) | |
1245 | { | |
1246 | cache->global_symbols = NULL; | |
1247 | cache->static_symbols = NULL; | |
1248 | } | |
1249 | else | |
1250 | { | |
1251 | size_t total_size = symbol_cache_byte_size (new_size); | |
1252 | ||
224c3ddb SM |
1253 | cache->global_symbols |
1254 | = (struct block_symbol_cache *) xcalloc (1, total_size); | |
1255 | cache->static_symbols | |
1256 | = (struct block_symbol_cache *) xcalloc (1, total_size); | |
f57d2163 DE |
1257 | cache->global_symbols->size = new_size; |
1258 | cache->static_symbols->size = new_size; | |
1259 | } | |
1260 | } | |
1261 | ||
f57d2163 DE |
1262 | /* Return the symbol cache of PSPACE. |
1263 | Create one if it doesn't exist yet. */ | |
1264 | ||
1265 | static struct symbol_cache * | |
1266 | get_symbol_cache (struct program_space *pspace) | |
1267 | { | |
3017b94d | 1268 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 DE |
1269 | |
1270 | if (cache == NULL) | |
1271 | { | |
3017b94d TT |
1272 | cache = symbol_cache_key.emplace (pspace); |
1273 | resize_symbol_cache (cache, symbol_cache_size); | |
f57d2163 DE |
1274 | } |
1275 | ||
1276 | return cache; | |
1277 | } | |
1278 | ||
f57d2163 DE |
1279 | /* Set the size of the symbol cache in all program spaces. */ |
1280 | ||
1281 | static void | |
1282 | set_symbol_cache_size (unsigned int new_size) | |
1283 | { | |
94c93c35 | 1284 | for (struct program_space *pspace : program_spaces) |
f57d2163 | 1285 | { |
3017b94d | 1286 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 DE |
1287 | |
1288 | /* The pspace could have been created but not have a cache yet. */ | |
1289 | if (cache != NULL) | |
1290 | resize_symbol_cache (cache, new_size); | |
1291 | } | |
1292 | } | |
1293 | ||
1294 | /* Called when symbol-cache-size is set. */ | |
1295 | ||
1296 | static void | |
eb4c3f4a | 1297 | set_symbol_cache_size_handler (const char *args, int from_tty, |
f57d2163 DE |
1298 | struct cmd_list_element *c) |
1299 | { | |
1300 | if (new_symbol_cache_size > MAX_SYMBOL_CACHE_SIZE) | |
1301 | { | |
1302 | /* Restore the previous value. | |
1303 | This is the value the "show" command prints. */ | |
1304 | new_symbol_cache_size = symbol_cache_size; | |
1305 | ||
1306 | error (_("Symbol cache size is too large, max is %u."), | |
1307 | MAX_SYMBOL_CACHE_SIZE); | |
1308 | } | |
1309 | symbol_cache_size = new_symbol_cache_size; | |
1310 | ||
1311 | set_symbol_cache_size (symbol_cache_size); | |
1312 | } | |
1313 | ||
1314 | /* Lookup symbol NAME,DOMAIN in BLOCK in the symbol cache of PSPACE. | |
1315 | OBJFILE_CONTEXT is the current objfile, which may be NULL. | |
1316 | The result is the symbol if found, SYMBOL_LOOKUP_FAILED if a previous lookup | |
1317 | failed (and thus this one will too), or NULL if the symbol is not present | |
1318 | in the cache. | |
d0509ba4 CB |
1319 | *BSC_PTR and *SLOT_PTR are set to the cache and slot of the symbol, which |
1320 | can be used to save the result of a full lookup attempt. */ | |
f57d2163 | 1321 | |
d12307c1 | 1322 | static struct block_symbol |
f57d2163 | 1323 | symbol_cache_lookup (struct symbol_cache *cache, |
ddbcedf5 | 1324 | struct objfile *objfile_context, enum block_enum block, |
f57d2163 DE |
1325 | const char *name, domain_enum domain, |
1326 | struct block_symbol_cache **bsc_ptr, | |
1327 | struct symbol_cache_slot **slot_ptr) | |
1328 | { | |
1329 | struct block_symbol_cache *bsc; | |
1330 | unsigned int hash; | |
1331 | struct symbol_cache_slot *slot; | |
1332 | ||
1333 | if (block == GLOBAL_BLOCK) | |
1334 | bsc = cache->global_symbols; | |
1335 | else | |
1336 | bsc = cache->static_symbols; | |
1337 | if (bsc == NULL) | |
1338 | { | |
1339 | *bsc_ptr = NULL; | |
1340 | *slot_ptr = NULL; | |
6640a367 | 1341 | return {}; |
f57d2163 DE |
1342 | } |
1343 | ||
1344 | hash = hash_symbol_entry (objfile_context, name, domain); | |
1345 | slot = bsc->symbols + hash % bsc->size; | |
f57d2163 | 1346 | |
d0509ba4 CB |
1347 | *bsc_ptr = bsc; |
1348 | *slot_ptr = slot; | |
1349 | ||
f57d2163 DE |
1350 | if (eq_symbol_entry (slot, objfile_context, name, domain)) |
1351 | { | |
1352 | if (symbol_lookup_debug) | |
1353 | fprintf_unfiltered (gdb_stdlog, | |
1354 | "%s block symbol cache hit%s for %s, %s\n", | |
1355 | block == GLOBAL_BLOCK ? "Global" : "Static", | |
1356 | slot->state == SYMBOL_SLOT_NOT_FOUND | |
1357 | ? " (not found)" : "", | |
1358 | name, domain_name (domain)); | |
1359 | ++bsc->hits; | |
1360 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
1361 | return SYMBOL_LOOKUP_FAILED; | |
1362 | return slot->value.found; | |
1363 | } | |
1364 | ||
2c26b84f DE |
1365 | /* Symbol is not present in the cache. */ |
1366 | ||
f57d2163 DE |
1367 | if (symbol_lookup_debug) |
1368 | { | |
1369 | fprintf_unfiltered (gdb_stdlog, | |
1370 | "%s block symbol cache miss for %s, %s\n", | |
1371 | block == GLOBAL_BLOCK ? "Global" : "Static", | |
1372 | name, domain_name (domain)); | |
1373 | } | |
1374 | ++bsc->misses; | |
6640a367 | 1375 | return {}; |
f57d2163 DE |
1376 | } |
1377 | ||
f57d2163 DE |
1378 | /* Mark SYMBOL as found in SLOT. |
1379 | OBJFILE_CONTEXT is the current objfile when the lookup was done, or NULL | |
1380 | if it's not needed to distinguish lookups (STATIC_BLOCK). It is *not* | |
1381 | necessarily the objfile the symbol was found in. */ | |
1382 | ||
1383 | static void | |
1384 | symbol_cache_mark_found (struct block_symbol_cache *bsc, | |
1385 | struct symbol_cache_slot *slot, | |
1386 | struct objfile *objfile_context, | |
d12307c1 PMR |
1387 | struct symbol *symbol, |
1388 | const struct block *block) | |
f57d2163 DE |
1389 | { |
1390 | if (bsc == NULL) | |
1391 | return; | |
1392 | if (slot->state != SYMBOL_SLOT_UNUSED) | |
1393 | { | |
1394 | ++bsc->collisions; | |
1395 | symbol_cache_clear_slot (slot); | |
1396 | } | |
1397 | slot->state = SYMBOL_SLOT_FOUND; | |
1398 | slot->objfile_context = objfile_context; | |
d12307c1 PMR |
1399 | slot->value.found.symbol = symbol; |
1400 | slot->value.found.block = block; | |
f57d2163 DE |
1401 | } |
1402 | ||
1403 | /* Mark symbol NAME, DOMAIN as not found in SLOT. | |
1404 | OBJFILE_CONTEXT is the current objfile when the lookup was done, or NULL | |
1405 | if it's not needed to distinguish lookups (STATIC_BLOCK). */ | |
1406 | ||
1407 | static void | |
1408 | symbol_cache_mark_not_found (struct block_symbol_cache *bsc, | |
1409 | struct symbol_cache_slot *slot, | |
1410 | struct objfile *objfile_context, | |
1411 | const char *name, domain_enum domain) | |
1412 | { | |
1413 | if (bsc == NULL) | |
1414 | return; | |
1415 | if (slot->state != SYMBOL_SLOT_UNUSED) | |
1416 | { | |
1417 | ++bsc->collisions; | |
1418 | symbol_cache_clear_slot (slot); | |
1419 | } | |
1420 | slot->state = SYMBOL_SLOT_NOT_FOUND; | |
1421 | slot->objfile_context = objfile_context; | |
1422 | slot->value.not_found.name = xstrdup (name); | |
1423 | slot->value.not_found.domain = domain; | |
1424 | } | |
1425 | ||
1426 | /* Flush the symbol cache of PSPACE. */ | |
1427 | ||
1428 | static void | |
1429 | symbol_cache_flush (struct program_space *pspace) | |
1430 | { | |
3017b94d | 1431 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 | 1432 | int pass; |
f57d2163 DE |
1433 | |
1434 | if (cache == NULL) | |
1435 | return; | |
1436 | if (cache->global_symbols == NULL) | |
1437 | { | |
1438 | gdb_assert (symbol_cache_size == 0); | |
1439 | gdb_assert (cache->static_symbols == NULL); | |
1440 | return; | |
1441 | } | |
1442 | ||
1443 | /* If the cache is untouched since the last flush, early exit. | |
1444 | This is important for performance during the startup of a program linked | |
1445 | with 100s (or 1000s) of shared libraries. */ | |
1446 | if (cache->global_symbols->misses == 0 | |
1447 | && cache->static_symbols->misses == 0) | |
1448 | return; | |
1449 | ||
1450 | gdb_assert (cache->global_symbols->size == symbol_cache_size); | |
1451 | gdb_assert (cache->static_symbols->size == symbol_cache_size); | |
1452 | ||
1453 | for (pass = 0; pass < 2; ++pass) | |
1454 | { | |
1455 | struct block_symbol_cache *bsc | |
1456 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1457 | unsigned int i; | |
1458 | ||
1459 | for (i = 0; i < bsc->size; ++i) | |
1460 | symbol_cache_clear_slot (&bsc->symbols[i]); | |
1461 | } | |
1462 | ||
1463 | cache->global_symbols->hits = 0; | |
1464 | cache->global_symbols->misses = 0; | |
1465 | cache->global_symbols->collisions = 0; | |
1466 | cache->static_symbols->hits = 0; | |
1467 | cache->static_symbols->misses = 0; | |
1468 | cache->static_symbols->collisions = 0; | |
1469 | } | |
1470 | ||
1471 | /* Dump CACHE. */ | |
1472 | ||
1473 | static void | |
1474 | symbol_cache_dump (const struct symbol_cache *cache) | |
1475 | { | |
1476 | int pass; | |
1477 | ||
1478 | if (cache->global_symbols == NULL) | |
1479 | { | |
1480 | printf_filtered (" <disabled>\n"); | |
1481 | return; | |
1482 | } | |
1483 | ||
1484 | for (pass = 0; pass < 2; ++pass) | |
1485 | { | |
1486 | const struct block_symbol_cache *bsc | |
1487 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1488 | unsigned int i; | |
1489 | ||
1490 | if (pass == 0) | |
1491 | printf_filtered ("Global symbols:\n"); | |
1492 | else | |
1493 | printf_filtered ("Static symbols:\n"); | |
1494 | ||
1495 | for (i = 0; i < bsc->size; ++i) | |
1496 | { | |
1497 | const struct symbol_cache_slot *slot = &bsc->symbols[i]; | |
1498 | ||
1499 | QUIT; | |
1500 | ||
1501 | switch (slot->state) | |
1502 | { | |
1503 | case SYMBOL_SLOT_UNUSED: | |
1504 | break; | |
1505 | case SYMBOL_SLOT_NOT_FOUND: | |
2c26b84f | 1506 | printf_filtered (" [%4u] = %s, %s %s (not found)\n", i, |
f57d2163 | 1507 | host_address_to_string (slot->objfile_context), |
2c26b84f DE |
1508 | slot->value.not_found.name, |
1509 | domain_name (slot->value.not_found.domain)); | |
f57d2163 DE |
1510 | break; |
1511 | case SYMBOL_SLOT_FOUND: | |
d12307c1 PMR |
1512 | { |
1513 | struct symbol *found = slot->value.found.symbol; | |
1514 | const struct objfile *context = slot->objfile_context; | |
1515 | ||
1516 | printf_filtered (" [%4u] = %s, %s %s\n", i, | |
1517 | host_address_to_string (context), | |
987012b8 | 1518 | found->print_name (), |
d12307c1 PMR |
1519 | domain_name (SYMBOL_DOMAIN (found))); |
1520 | break; | |
1521 | } | |
f57d2163 DE |
1522 | } |
1523 | } | |
1524 | } | |
1525 | } | |
1526 | ||
1527 | /* The "mt print symbol-cache" command. */ | |
1528 | ||
1529 | static void | |
510e5e56 | 1530 | maintenance_print_symbol_cache (const char *args, int from_tty) |
f57d2163 | 1531 | { |
94c93c35 | 1532 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1533 | { |
1534 | struct symbol_cache *cache; | |
1535 | ||
1536 | printf_filtered (_("Symbol cache for pspace %d\n%s:\n"), | |
1537 | pspace->num, | |
1538 | pspace->symfile_object_file != NULL | |
1539 | ? objfile_name (pspace->symfile_object_file) | |
1540 | : "(no object file)"); | |
1541 | ||
1542 | /* If the cache hasn't been created yet, avoid creating one. */ | |
3017b94d | 1543 | cache = symbol_cache_key.get (pspace); |
f57d2163 DE |
1544 | if (cache == NULL) |
1545 | printf_filtered (" <empty>\n"); | |
1546 | else | |
1547 | symbol_cache_dump (cache); | |
1548 | } | |
1549 | } | |
1550 | ||
1551 | /* The "mt flush-symbol-cache" command. */ | |
1552 | ||
1553 | static void | |
510e5e56 | 1554 | maintenance_flush_symbol_cache (const char *args, int from_tty) |
f57d2163 | 1555 | { |
94c93c35 | 1556 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1557 | { |
1558 | symbol_cache_flush (pspace); | |
1559 | } | |
1560 | } | |
1561 | ||
1562 | /* Print usage statistics of CACHE. */ | |
1563 | ||
1564 | static void | |
1565 | symbol_cache_stats (struct symbol_cache *cache) | |
1566 | { | |
1567 | int pass; | |
1568 | ||
1569 | if (cache->global_symbols == NULL) | |
1570 | { | |
1571 | printf_filtered (" <disabled>\n"); | |
1572 | return; | |
1573 | } | |
1574 | ||
1575 | for (pass = 0; pass < 2; ++pass) | |
1576 | { | |
1577 | const struct block_symbol_cache *bsc | |
1578 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1579 | ||
1580 | QUIT; | |
1581 | ||
1582 | if (pass == 0) | |
1583 | printf_filtered ("Global block cache stats:\n"); | |
1584 | else | |
1585 | printf_filtered ("Static block cache stats:\n"); | |
1586 | ||
1587 | printf_filtered (" size: %u\n", bsc->size); | |
1588 | printf_filtered (" hits: %u\n", bsc->hits); | |
1589 | printf_filtered (" misses: %u\n", bsc->misses); | |
1590 | printf_filtered (" collisions: %u\n", bsc->collisions); | |
1591 | } | |
1592 | } | |
1593 | ||
1594 | /* The "mt print symbol-cache-statistics" command. */ | |
1595 | ||
1596 | static void | |
510e5e56 | 1597 | maintenance_print_symbol_cache_statistics (const char *args, int from_tty) |
f57d2163 | 1598 | { |
94c93c35 | 1599 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1600 | { |
1601 | struct symbol_cache *cache; | |
1602 | ||
1603 | printf_filtered (_("Symbol cache statistics for pspace %d\n%s:\n"), | |
1604 | pspace->num, | |
1605 | pspace->symfile_object_file != NULL | |
1606 | ? objfile_name (pspace->symfile_object_file) | |
1607 | : "(no object file)"); | |
1608 | ||
1609 | /* If the cache hasn't been created yet, avoid creating one. */ | |
3017b94d | 1610 | cache = symbol_cache_key.get (pspace); |
f57d2163 | 1611 | if (cache == NULL) |
24b21115 | 1612 | printf_filtered (" empty, no stats available\n"); |
f57d2163 DE |
1613 | else |
1614 | symbol_cache_stats (cache); | |
1615 | } | |
1616 | } | |
1617 | ||
1618 | /* This module's 'new_objfile' observer. */ | |
1619 | ||
1620 | static void | |
1621 | symtab_new_objfile_observer (struct objfile *objfile) | |
1622 | { | |
1623 | /* Ideally we'd use OBJFILE->pspace, but OBJFILE may be NULL. */ | |
1624 | symbol_cache_flush (current_program_space); | |
1625 | } | |
1626 | ||
1627 | /* This module's 'free_objfile' observer. */ | |
1628 | ||
1629 | static void | |
1630 | symtab_free_objfile_observer (struct objfile *objfile) | |
1631 | { | |
1632 | symbol_cache_flush (objfile->pspace); | |
1633 | } | |
1634 | \f | |
c906108c SS |
1635 | /* Debug symbols usually don't have section information. We need to dig that |
1636 | out of the minimal symbols and stash that in the debug symbol. */ | |
1637 | ||
ccefe4c4 | 1638 | void |
907fc202 UW |
1639 | fixup_section (struct general_symbol_info *ginfo, |
1640 | CORE_ADDR addr, struct objfile *objfile) | |
c906108c SS |
1641 | { |
1642 | struct minimal_symbol *msym; | |
c906108c | 1643 | |
bccdca4a UW |
1644 | /* First, check whether a minimal symbol with the same name exists |
1645 | and points to the same address. The address check is required | |
1646 | e.g. on PowerPC64, where the minimal symbol for a function will | |
1647 | point to the function descriptor, while the debug symbol will | |
1648 | point to the actual function code. */ | |
4d4eaa30 CB |
1649 | msym = lookup_minimal_symbol_by_pc_name (addr, ginfo->linkage_name (), |
1650 | objfile); | |
907fc202 | 1651 | if (msym) |
a52d653e | 1652 | ginfo->set_section_index (msym->section_index ()); |
907fc202 | 1653 | else |
19e2d14b KB |
1654 | { |
1655 | /* Static, function-local variables do appear in the linker | |
1656 | (minimal) symbols, but are frequently given names that won't | |
1657 | be found via lookup_minimal_symbol(). E.g., it has been | |
1658 | observed in frv-uclinux (ELF) executables that a static, | |
1659 | function-local variable named "foo" might appear in the | |
1660 | linker symbols as "foo.6" or "foo.3". Thus, there is no | |
1661 | point in attempting to extend the lookup-by-name mechanism to | |
1662 | handle this case due to the fact that there can be multiple | |
1663 | names. | |
9af17804 | 1664 | |
19e2d14b KB |
1665 | So, instead, search the section table when lookup by name has |
1666 | failed. The ``addr'' and ``endaddr'' fields may have already | |
6a053cb1 TT |
1667 | been relocated. If so, the relocation offset needs to be |
1668 | subtracted from these values when performing the comparison. | |
1669 | We unconditionally subtract it, because, when no relocation | |
1670 | has been performed, the value will simply be zero. | |
9af17804 | 1671 | |
19e2d14b KB |
1672 | The address of the symbol whose section we're fixing up HAS |
1673 | NOT BEEN adjusted (relocated) yet. It can't have been since | |
1674 | the section isn't yet known and knowing the section is | |
1675 | necessary in order to add the correct relocation value. In | |
1676 | other words, we wouldn't even be in this function (attempting | |
1677 | to compute the section) if it were already known. | |
1678 | ||
1679 | Note that it is possible to search the minimal symbols | |
1680 | (subtracting the relocation value if necessary) to find the | |
1681 | matching minimal symbol, but this is overkill and much less | |
1682 | efficient. It is not necessary to find the matching minimal | |
9af17804 DE |
1683 | symbol, only its section. |
1684 | ||
19e2d14b KB |
1685 | Note that this technique (of doing a section table search) |
1686 | can fail when unrelocated section addresses overlap. For | |
1687 | this reason, we still attempt a lookup by name prior to doing | |
1688 | a search of the section table. */ | |
9af17804 | 1689 | |
19e2d14b | 1690 | struct obj_section *s; |
e27d198c | 1691 | int fallback = -1; |
433759f7 | 1692 | |
19e2d14b KB |
1693 | ALL_OBJFILE_OSECTIONS (objfile, s) |
1694 | { | |
65cf3563 | 1695 | int idx = s - objfile->sections; |
6a053cb1 | 1696 | CORE_ADDR offset = objfile->section_offsets[idx]; |
19e2d14b | 1697 | |
e27d198c TT |
1698 | if (fallback == -1) |
1699 | fallback = idx; | |
1700 | ||
0c1bcd23 | 1701 | if (s->addr () - offset <= addr && addr < s->endaddr () - offset) |
19e2d14b | 1702 | { |
a52d653e | 1703 | ginfo->set_section_index (idx); |
19e2d14b KB |
1704 | return; |
1705 | } | |
1706 | } | |
e27d198c TT |
1707 | |
1708 | /* If we didn't find the section, assume it is in the first | |
1709 | section. If there is no allocated section, then it hardly | |
1710 | matters what we pick, so just pick zero. */ | |
1711 | if (fallback == -1) | |
a52d653e | 1712 | ginfo->set_section_index (0); |
e27d198c | 1713 | else |
a52d653e | 1714 | ginfo->set_section_index (fallback); |
19e2d14b | 1715 | } |
c906108c SS |
1716 | } |
1717 | ||
1718 | struct symbol * | |
fba45db2 | 1719 | fixup_symbol_section (struct symbol *sym, struct objfile *objfile) |
c906108c | 1720 | { |
907fc202 UW |
1721 | CORE_ADDR addr; |
1722 | ||
c906108c SS |
1723 | if (!sym) |
1724 | return NULL; | |
1725 | ||
1994afbf DE |
1726 | if (!SYMBOL_OBJFILE_OWNED (sym)) |
1727 | return sym; | |
1728 | ||
907fc202 UW |
1729 | /* We either have an OBJFILE, or we can get at it from the sym's |
1730 | symtab. Anything else is a bug. */ | |
08be3fe3 | 1731 | gdb_assert (objfile || symbol_symtab (sym)); |
907fc202 UW |
1732 | |
1733 | if (objfile == NULL) | |
08be3fe3 | 1734 | objfile = symbol_objfile (sym); |
907fc202 | 1735 | |
ebbc3a7d | 1736 | if (sym->obj_section (objfile) != nullptr) |
e27d198c TT |
1737 | return sym; |
1738 | ||
907fc202 UW |
1739 | /* We should have an objfile by now. */ |
1740 | gdb_assert (objfile); | |
1741 | ||
1742 | switch (SYMBOL_CLASS (sym)) | |
1743 | { | |
1744 | case LOC_STATIC: | |
1745 | case LOC_LABEL: | |
907fc202 UW |
1746 | addr = SYMBOL_VALUE_ADDRESS (sym); |
1747 | break; | |
1748 | case LOC_BLOCK: | |
2b1ffcfd | 1749 | addr = BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (sym)); |
907fc202 UW |
1750 | break; |
1751 | ||
1752 | default: | |
1753 | /* Nothing else will be listed in the minsyms -- no use looking | |
1754 | it up. */ | |
1755 | return sym; | |
1756 | } | |
1757 | ||
468c0cbb | 1758 | fixup_section (sym, addr, objfile); |
c906108c SS |
1759 | |
1760 | return sym; | |
1761 | } | |
1762 | ||
b5ec771e PA |
1763 | /* See symtab.h. */ |
1764 | ||
1765 | demangle_for_lookup_info::demangle_for_lookup_info | |
1766 | (const lookup_name_info &lookup_name, language lang) | |
1767 | { | |
1768 | demangle_result_storage storage; | |
1769 | ||
c62446b1 PA |
1770 | if (lookup_name.ignore_parameters () && lang == language_cplus) |
1771 | { | |
1772 | gdb::unique_xmalloc_ptr<char> without_params | |
e0802d59 | 1773 | = cp_remove_params_if_any (lookup_name.c_str (), |
c62446b1 PA |
1774 | lookup_name.completion_mode ()); |
1775 | ||
1776 | if (without_params != NULL) | |
1777 | { | |
de63c46b PA |
1778 | if (lookup_name.match_type () != symbol_name_match_type::SEARCH_NAME) |
1779 | m_demangled_name = demangle_for_lookup (without_params.get (), | |
1780 | lang, storage); | |
c62446b1 PA |
1781 | return; |
1782 | } | |
1783 | } | |
1784 | ||
de63c46b | 1785 | if (lookup_name.match_type () == symbol_name_match_type::SEARCH_NAME) |
e0802d59 | 1786 | m_demangled_name = lookup_name.c_str (); |
de63c46b | 1787 | else |
e0802d59 | 1788 | m_demangled_name = demangle_for_lookup (lookup_name.c_str (), |
de63c46b | 1789 | lang, storage); |
b5ec771e PA |
1790 | } |
1791 | ||
1792 | /* See symtab.h. */ | |
1793 | ||
1794 | const lookup_name_info & | |
1795 | lookup_name_info::match_any () | |
1796 | { | |
1797 | /* Lookup any symbol that "" would complete. I.e., this matches all | |
1798 | symbol names. */ | |
e0802d59 | 1799 | static const lookup_name_info lookup_name ("", symbol_name_match_type::FULL, |
b5ec771e PA |
1800 | true); |
1801 | ||
1802 | return lookup_name; | |
1803 | } | |
1804 | ||
f8eba3c6 | 1805 | /* Compute the demangled form of NAME as used by the various symbol |
2f408ecb PA |
1806 | lookup functions. The result can either be the input NAME |
1807 | directly, or a pointer to a buffer owned by the STORAGE object. | |
f8eba3c6 | 1808 | |
2f408ecb | 1809 | For Ada, this function just returns NAME, unmodified. |
f8eba3c6 TT |
1810 | Normally, Ada symbol lookups are performed using the encoded name |
1811 | rather than the demangled name, and so it might seem to make sense | |
1812 | for this function to return an encoded version of NAME. | |
1813 | Unfortunately, we cannot do this, because this function is used in | |
1814 | circumstances where it is not appropriate to try to encode NAME. | |
1815 | For instance, when displaying the frame info, we demangle the name | |
1816 | of each parameter, and then perform a symbol lookup inside our | |
1817 | function using that demangled name. In Ada, certain functions | |
1818 | have internally-generated parameters whose name contain uppercase | |
1819 | characters. Encoding those name would result in those uppercase | |
1820 | characters to become lowercase, and thus cause the symbol lookup | |
1821 | to fail. */ | |
c906108c | 1822 | |
2f408ecb | 1823 | const char * |
f8eba3c6 | 1824 | demangle_for_lookup (const char *name, enum language lang, |
2f408ecb | 1825 | demangle_result_storage &storage) |
c906108c | 1826 | { |
9c37b5ae | 1827 | /* If we are using C++, D, or Go, demangle the name before doing a |
c378eb4e | 1828 | lookup, so we can always binary search. */ |
53c5240f | 1829 | if (lang == language_cplus) |
729051e6 | 1830 | { |
2f408ecb PA |
1831 | char *demangled_name = gdb_demangle (name, DMGL_ANSI | DMGL_PARAMS); |
1832 | if (demangled_name != NULL) | |
1833 | return storage.set_malloc_ptr (demangled_name); | |
1834 | ||
1835 | /* If we were given a non-mangled name, canonicalize it | |
1836 | according to the language (so far only for C++). */ | |
596dc4ad TT |
1837 | gdb::unique_xmalloc_ptr<char> canon = cp_canonicalize_string (name); |
1838 | if (canon != nullptr) | |
1839 | return storage.set_malloc_ptr (std::move (canon)); | |
729051e6 | 1840 | } |
6aecb9c2 JB |
1841 | else if (lang == language_d) |
1842 | { | |
2f408ecb PA |
1843 | char *demangled_name = d_demangle (name, 0); |
1844 | if (demangled_name != NULL) | |
1845 | return storage.set_malloc_ptr (demangled_name); | |
6aecb9c2 | 1846 | } |
a766d390 DE |
1847 | else if (lang == language_go) |
1848 | { | |
82fc57fd AB |
1849 | char *demangled_name |
1850 | = language_def (language_go)->demangle_symbol (name, 0); | |
2f408ecb PA |
1851 | if (demangled_name != NULL) |
1852 | return storage.set_malloc_ptr (demangled_name); | |
a766d390 | 1853 | } |
729051e6 | 1854 | |
2f408ecb | 1855 | return name; |
f8eba3c6 TT |
1856 | } |
1857 | ||
5ffa0793 PA |
1858 | /* See symtab.h. */ |
1859 | ||
1860 | unsigned int | |
1861 | search_name_hash (enum language language, const char *search_name) | |
1862 | { | |
fb8006fd | 1863 | return language_def (language)->search_name_hash (search_name); |
5ffa0793 PA |
1864 | } |
1865 | ||
cf901d3b | 1866 | /* See symtab.h. |
f8eba3c6 | 1867 | |
cf901d3b | 1868 | This function (or rather its subordinates) have a bunch of loops and |
7e082072 DE |
1869 | it would seem to be attractive to put in some QUIT's (though I'm not really |
1870 | sure whether it can run long enough to be really important). But there | |
f8eba3c6 | 1871 | are a few calls for which it would appear to be bad news to quit |
7e082072 | 1872 | out of here: e.g., find_proc_desc in alpha-mdebug-tdep.c. (Note |
f8eba3c6 TT |
1873 | that there is C++ code below which can error(), but that probably |
1874 | doesn't affect these calls since they are looking for a known | |
1875 | variable and thus can probably assume it will never hit the C++ | |
1876 | code). */ | |
1877 | ||
d12307c1 | 1878 | struct block_symbol |
f8eba3c6 TT |
1879 | lookup_symbol_in_language (const char *name, const struct block *block, |
1880 | const domain_enum domain, enum language lang, | |
1993b719 | 1881 | struct field_of_this_result *is_a_field_of_this) |
f8eba3c6 | 1882 | { |
2f408ecb PA |
1883 | demangle_result_storage storage; |
1884 | const char *modified_name = demangle_for_lookup (name, lang, storage); | |
f8eba3c6 | 1885 | |
de63c46b PA |
1886 | return lookup_symbol_aux (modified_name, |
1887 | symbol_name_match_type::FULL, | |
1888 | block, domain, lang, | |
2f408ecb | 1889 | is_a_field_of_this); |
fba7f19c EZ |
1890 | } |
1891 | ||
cf901d3b | 1892 | /* See symtab.h. */ |
53c5240f | 1893 | |
d12307c1 | 1894 | struct block_symbol |
53c5240f | 1895 | lookup_symbol (const char *name, const struct block *block, |
1993b719 TT |
1896 | domain_enum domain, |
1897 | struct field_of_this_result *is_a_field_of_this) | |
53c5240f PA |
1898 | { |
1899 | return lookup_symbol_in_language (name, block, domain, | |
1900 | current_language->la_language, | |
2570f2b7 | 1901 | is_a_field_of_this); |
53c5240f PA |
1902 | } |
1903 | ||
cf901d3b | 1904 | /* See symtab.h. */ |
66a17cb6 | 1905 | |
de63c46b PA |
1906 | struct block_symbol |
1907 | lookup_symbol_search_name (const char *search_name, const struct block *block, | |
1908 | domain_enum domain) | |
1909 | { | |
1910 | return lookup_symbol_aux (search_name, symbol_name_match_type::SEARCH_NAME, | |
1911 | block, domain, language_asm, NULL); | |
1912 | } | |
1913 | ||
1914 | /* See symtab.h. */ | |
1915 | ||
d12307c1 | 1916 | struct block_symbol |
66a17cb6 TT |
1917 | lookup_language_this (const struct language_defn *lang, |
1918 | const struct block *block) | |
1919 | { | |
5bae7c4e | 1920 | if (lang->name_of_this () == NULL || block == NULL) |
6640a367 | 1921 | return {}; |
66a17cb6 | 1922 | |
cc485e62 DE |
1923 | if (symbol_lookup_debug > 1) |
1924 | { | |
d6bc0792 | 1925 | struct objfile *objfile = block_objfile (block); |
cc485e62 DE |
1926 | |
1927 | fprintf_unfiltered (gdb_stdlog, | |
1928 | "lookup_language_this (%s, %s (objfile %s))", | |
6f7664a9 | 1929 | lang->name (), host_address_to_string (block), |
cc485e62 DE |
1930 | objfile_debug_name (objfile)); |
1931 | } | |
1932 | ||
03de6823 | 1933 | while (block) |
66a17cb6 TT |
1934 | { |
1935 | struct symbol *sym; | |
1936 | ||
5bae7c4e | 1937 | sym = block_lookup_symbol (block, lang->name_of_this (), |
de63c46b PA |
1938 | symbol_name_match_type::SEARCH_NAME, |
1939 | VAR_DOMAIN); | |
66a17cb6 | 1940 | if (sym != NULL) |
f149aabd | 1941 | { |
cc485e62 DE |
1942 | if (symbol_lookup_debug > 1) |
1943 | { | |
1944 | fprintf_unfiltered (gdb_stdlog, " = %s (%s, block %s)\n", | |
987012b8 | 1945 | sym->print_name (), |
cc485e62 DE |
1946 | host_address_to_string (sym), |
1947 | host_address_to_string (block)); | |
1948 | } | |
d12307c1 | 1949 | return (struct block_symbol) {sym, block}; |
f149aabd | 1950 | } |
66a17cb6 | 1951 | if (BLOCK_FUNCTION (block)) |
03de6823 | 1952 | break; |
66a17cb6 TT |
1953 | block = BLOCK_SUPERBLOCK (block); |
1954 | } | |
03de6823 | 1955 | |
cc485e62 DE |
1956 | if (symbol_lookup_debug > 1) |
1957 | fprintf_unfiltered (gdb_stdlog, " = NULL\n"); | |
6640a367 | 1958 | return {}; |
66a17cb6 TT |
1959 | } |
1960 | ||
2dc3df72 TT |
1961 | /* Given TYPE, a structure/union, |
1962 | return 1 if the component named NAME from the ultimate target | |
1963 | structure/union is defined, otherwise, return 0. */ | |
1964 | ||
1965 | static int | |
1993b719 TT |
1966 | check_field (struct type *type, const char *name, |
1967 | struct field_of_this_result *is_a_field_of_this) | |
2dc3df72 TT |
1968 | { |
1969 | int i; | |
1970 | ||
1971 | /* The type may be a stub. */ | |
f168693b | 1972 | type = check_typedef (type); |
2dc3df72 | 1973 | |
1f704f76 | 1974 | for (i = type->num_fields () - 1; i >= TYPE_N_BASECLASSES (type); i--) |
2dc3df72 TT |
1975 | { |
1976 | const char *t_field_name = TYPE_FIELD_NAME (type, i); | |
1977 | ||
1978 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) | |
1993b719 TT |
1979 | { |
1980 | is_a_field_of_this->type = type; | |
ceacbf6e | 1981 | is_a_field_of_this->field = &type->field (i); |
1993b719 TT |
1982 | return 1; |
1983 | } | |
2dc3df72 TT |
1984 | } |
1985 | ||
1986 | /* C++: If it was not found as a data field, then try to return it | |
1987 | as a pointer to a method. */ | |
1988 | ||
1989 | for (i = TYPE_NFN_FIELDS (type) - 1; i >= 0; --i) | |
1990 | { | |
1991 | if (strcmp_iw (TYPE_FN_FIELDLIST_NAME (type, i), name) == 0) | |
1993b719 TT |
1992 | { |
1993 | is_a_field_of_this->type = type; | |
1994 | is_a_field_of_this->fn_field = &TYPE_FN_FIELDLIST (type, i); | |
1995 | return 1; | |
1996 | } | |
2dc3df72 TT |
1997 | } |
1998 | ||
1999 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1993b719 | 2000 | if (check_field (TYPE_BASECLASS (type, i), name, is_a_field_of_this)) |
2dc3df72 TT |
2001 | return 1; |
2002 | ||
2003 | return 0; | |
2004 | } | |
2005 | ||
53c5240f | 2006 | /* Behave like lookup_symbol except that NAME is the natural name |
7e082072 | 2007 | (e.g., demangled name) of the symbol that we're looking for. */ |
5ad1c190 | 2008 | |
d12307c1 | 2009 | static struct block_symbol |
de63c46b PA |
2010 | lookup_symbol_aux (const char *name, symbol_name_match_type match_type, |
2011 | const struct block *block, | |
94af9270 | 2012 | const domain_enum domain, enum language language, |
1993b719 | 2013 | struct field_of_this_result *is_a_field_of_this) |
fba7f19c | 2014 | { |
d12307c1 | 2015 | struct block_symbol result; |
53c5240f | 2016 | const struct language_defn *langdef; |
406bc4de | 2017 | |
cc485e62 DE |
2018 | if (symbol_lookup_debug) |
2019 | { | |
d6bc0792 TT |
2020 | struct objfile *objfile = (block == nullptr |
2021 | ? nullptr : block_objfile (block)); | |
cc485e62 DE |
2022 | |
2023 | fprintf_unfiltered (gdb_stdlog, | |
2024 | "lookup_symbol_aux (%s, %s (objfile %s), %s, %s)\n", | |
2025 | name, host_address_to_string (block), | |
2026 | objfile != NULL | |
2027 | ? objfile_debug_name (objfile) : "NULL", | |
2028 | domain_name (domain), language_str (language)); | |
2029 | } | |
2030 | ||
9a146a11 EZ |
2031 | /* Make sure we do something sensible with is_a_field_of_this, since |
2032 | the callers that set this parameter to some non-null value will | |
1993b719 TT |
2033 | certainly use it later. If we don't set it, the contents of |
2034 | is_a_field_of_this are undefined. */ | |
9a146a11 | 2035 | if (is_a_field_of_this != NULL) |
1993b719 | 2036 | memset (is_a_field_of_this, 0, sizeof (*is_a_field_of_this)); |
9a146a11 | 2037 | |
e4051eeb DC |
2038 | /* Search specified block and its superiors. Don't search |
2039 | STATIC_BLOCK or GLOBAL_BLOCK. */ | |
c906108c | 2040 | |
de63c46b | 2041 | result = lookup_local_symbol (name, match_type, block, domain, language); |
d12307c1 | 2042 | if (result.symbol != NULL) |
cc485e62 DE |
2043 | { |
2044 | if (symbol_lookup_debug) | |
2045 | { | |
2046 | fprintf_unfiltered (gdb_stdlog, "lookup_symbol_aux (...) = %s\n", | |
d12307c1 | 2047 | host_address_to_string (result.symbol)); |
cc485e62 | 2048 | } |
d12307c1 | 2049 | return result; |
cc485e62 | 2050 | } |
c906108c | 2051 | |
53c5240f | 2052 | /* If requested to do so by the caller and if appropriate for LANGUAGE, |
13387711 | 2053 | check to see if NAME is a field of `this'. */ |
53c5240f PA |
2054 | |
2055 | langdef = language_def (language); | |
5f9a71c3 | 2056 | |
6592e36f TT |
2057 | /* Don't do this check if we are searching for a struct. It will |
2058 | not be found by check_field, but will be found by other | |
2059 | means. */ | |
2060 | if (is_a_field_of_this != NULL && domain != STRUCT_DOMAIN) | |
c906108c | 2061 | { |
d12307c1 | 2062 | result = lookup_language_this (langdef, block); |
2b2d9e11 | 2063 | |
d12307c1 | 2064 | if (result.symbol) |
c906108c | 2065 | { |
d12307c1 | 2066 | struct type *t = result.symbol->type; |
9af17804 | 2067 | |
2b2d9e11 VP |
2068 | /* I'm not really sure that type of this can ever |
2069 | be typedefed; just be safe. */ | |
f168693b | 2070 | t = check_typedef (t); |
78134374 | 2071 | if (t->code () == TYPE_CODE_PTR || TYPE_IS_REFERENCE (t)) |
2b2d9e11 | 2072 | t = TYPE_TARGET_TYPE (t); |
9af17804 | 2073 | |
78134374 SM |
2074 | if (t->code () != TYPE_CODE_STRUCT |
2075 | && t->code () != TYPE_CODE_UNION) | |
9af17804 | 2076 | error (_("Internal error: `%s' is not an aggregate"), |
5bae7c4e | 2077 | langdef->name_of_this ()); |
9af17804 | 2078 | |
1993b719 | 2079 | if (check_field (t, name, is_a_field_of_this)) |
cc485e62 DE |
2080 | { |
2081 | if (symbol_lookup_debug) | |
2082 | { | |
2083 | fprintf_unfiltered (gdb_stdlog, | |
2084 | "lookup_symbol_aux (...) = NULL\n"); | |
2085 | } | |
6640a367 | 2086 | return {}; |
cc485e62 | 2087 | } |
c906108c SS |
2088 | } |
2089 | } | |
2090 | ||
53c5240f | 2091 | /* Now do whatever is appropriate for LANGUAGE to look |
774b6a14 | 2092 | up static and global variables. */ |
c906108c | 2093 | |
a78a19b1 | 2094 | result = langdef->lookup_symbol_nonlocal (name, block, domain); |
d12307c1 | 2095 | if (result.symbol != NULL) |
cc485e62 DE |
2096 | { |
2097 | if (symbol_lookup_debug) | |
2098 | { | |
2099 | fprintf_unfiltered (gdb_stdlog, "lookup_symbol_aux (...) = %s\n", | |
d12307c1 | 2100 | host_address_to_string (result.symbol)); |
cc485e62 | 2101 | } |
d12307c1 | 2102 | return result; |
cc485e62 | 2103 | } |
c906108c | 2104 | |
774b6a14 TT |
2105 | /* Now search all static file-level symbols. Not strictly correct, |
2106 | but more useful than an error. */ | |
41f62f39 | 2107 | |
d12307c1 | 2108 | result = lookup_static_symbol (name, domain); |
cc485e62 DE |
2109 | if (symbol_lookup_debug) |
2110 | { | |
2111 | fprintf_unfiltered (gdb_stdlog, "lookup_symbol_aux (...) = %s\n", | |
d12307c1 PMR |
2112 | result.symbol != NULL |
2113 | ? host_address_to_string (result.symbol) | |
2114 | : "NULL"); | |
cc485e62 | 2115 | } |
d12307c1 | 2116 | return result; |
41f62f39 JK |
2117 | } |
2118 | ||
e4051eeb | 2119 | /* Check to see if the symbol is defined in BLOCK or its superiors. |
89a9d1b1 | 2120 | Don't search STATIC_BLOCK or GLOBAL_BLOCK. */ |
8155455b | 2121 | |
d12307c1 | 2122 | static struct block_symbol |
de63c46b PA |
2123 | lookup_local_symbol (const char *name, |
2124 | symbol_name_match_type match_type, | |
2125 | const struct block *block, | |
74016e12 DE |
2126 | const domain_enum domain, |
2127 | enum language language) | |
8155455b DC |
2128 | { |
2129 | struct symbol *sym; | |
89a9d1b1 | 2130 | const struct block *static_block = block_static_block (block); |
13387711 SW |
2131 | const char *scope = block_scope (block); |
2132 | ||
e4051eeb DC |
2133 | /* Check if either no block is specified or it's a global block. */ |
2134 | ||
89a9d1b1 | 2135 | if (static_block == NULL) |
6640a367 | 2136 | return {}; |
e4051eeb | 2137 | |
89a9d1b1 | 2138 | while (block != static_block) |
f61e8913 | 2139 | { |
de63c46b | 2140 | sym = lookup_symbol_in_block (name, match_type, block, domain); |
f61e8913 | 2141 | if (sym != NULL) |
d12307c1 | 2142 | return (struct block_symbol) {sym, block}; |
edb3359d | 2143 | |
f55ee35c | 2144 | if (language == language_cplus || language == language_fortran) |
dda83cd7 SM |
2145 | { |
2146 | struct block_symbol blocksym | |
d12307c1 PMR |
2147 | = cp_lookup_symbol_imports_or_template (scope, name, block, |
2148 | domain); | |
2149 | ||
dda83cd7 SM |
2150 | if (blocksym.symbol != NULL) |
2151 | return blocksym; | |
2152 | } | |
13387711 | 2153 | |
edb3359d DJ |
2154 | if (BLOCK_FUNCTION (block) != NULL && block_inlined_p (block)) |
2155 | break; | |
f61e8913 DC |
2156 | block = BLOCK_SUPERBLOCK (block); |
2157 | } | |
2158 | ||
3aee438b | 2159 | /* We've reached the end of the function without finding a result. */ |
e4051eeb | 2160 | |
6640a367 | 2161 | return {}; |
f61e8913 DC |
2162 | } |
2163 | ||
cf901d3b | 2164 | /* See symtab.h. */ |
3a40aaa0 | 2165 | |
5f9a71c3 | 2166 | struct symbol * |
de63c46b PA |
2167 | lookup_symbol_in_block (const char *name, symbol_name_match_type match_type, |
2168 | const struct block *block, | |
d1a2d36d | 2169 | const domain_enum domain) |
f61e8913 DC |
2170 | { |
2171 | struct symbol *sym; | |
f61e8913 | 2172 | |
cc485e62 DE |
2173 | if (symbol_lookup_debug > 1) |
2174 | { | |
d6bc0792 TT |
2175 | struct objfile *objfile = (block == nullptr |
2176 | ? nullptr : block_objfile (block)); | |
cc485e62 DE |
2177 | |
2178 | fprintf_unfiltered (gdb_stdlog, | |
2179 | "lookup_symbol_in_block (%s, %s (objfile %s), %s)", | |
2180 | name, host_address_to_string (block), | |
2181 | objfile_debug_name (objfile), | |
2182 | domain_name (domain)); | |
2183 | } | |
2184 | ||
de63c46b | 2185 | sym = block_lookup_symbol (block, name, match_type, domain); |
f61e8913 | 2186 | if (sym) |
8155455b | 2187 | { |
cc485e62 DE |
2188 | if (symbol_lookup_debug > 1) |
2189 | { | |
2190 | fprintf_unfiltered (gdb_stdlog, " = %s\n", | |
2191 | host_address_to_string (sym)); | |
2192 | } | |
21b556f4 | 2193 | return fixup_symbol_section (sym, NULL); |
8155455b DC |
2194 | } |
2195 | ||
cc485e62 DE |
2196 | if (symbol_lookup_debug > 1) |
2197 | fprintf_unfiltered (gdb_stdlog, " = NULL\n"); | |
8155455b DC |
2198 | return NULL; |
2199 | } | |
2200 | ||
cf901d3b | 2201 | /* See symtab.h. */ |
3a40aaa0 | 2202 | |
d12307c1 | 2203 | struct block_symbol |
efad9b6a | 2204 | lookup_global_symbol_from_objfile (struct objfile *main_objfile, |
442853af | 2205 | enum block_enum block_index, |
3a40aaa0 | 2206 | const char *name, |
21b556f4 | 2207 | const domain_enum domain) |
3a40aaa0 | 2208 | { |
442853af CB |
2209 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2210 | ||
bde09ab7 | 2211 | for (objfile *objfile : main_objfile->separate_debug_objfiles ()) |
15d123c9 | 2212 | { |
d12307c1 | 2213 | struct block_symbol result |
dda83cd7 | 2214 | = lookup_symbol_in_objfile (objfile, block_index, name, domain); |
15d123c9 | 2215 | |
442853af | 2216 | if (result.symbol != nullptr) |
d12307c1 | 2217 | return result; |
15d123c9 | 2218 | } |
56e3f43c | 2219 | |
6640a367 | 2220 | return {}; |
3a40aaa0 UW |
2221 | } |
2222 | ||
19630284 JB |
2223 | /* Check to see if the symbol is defined in one of the OBJFILE's |
2224 | symtabs. BLOCK_INDEX should be either GLOBAL_BLOCK or STATIC_BLOCK, | |
8155455b DC |
2225 | depending on whether or not we want to search global symbols or |
2226 | static symbols. */ | |
2227 | ||
d12307c1 | 2228 | static struct block_symbol |
c32e6a04 CB |
2229 | lookup_symbol_in_objfile_symtabs (struct objfile *objfile, |
2230 | enum block_enum block_index, const char *name, | |
2231 | const domain_enum domain) | |
19630284 | 2232 | { |
ba715d7f JK |
2233 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2234 | ||
cc485e62 DE |
2235 | if (symbol_lookup_debug > 1) |
2236 | { | |
2237 | fprintf_unfiltered (gdb_stdlog, | |
2238 | "lookup_symbol_in_objfile_symtabs (%s, %s, %s, %s)", | |
2239 | objfile_debug_name (objfile), | |
2240 | block_index == GLOBAL_BLOCK | |
2241 | ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
2242 | name, domain_name (domain)); | |
2243 | } | |
2244 | ||
de82891c TV |
2245 | struct block_symbol other; |
2246 | other.symbol = NULL; | |
b669c953 | 2247 | for (compunit_symtab *cust : objfile->compunits ()) |
a743abeb | 2248 | { |
43f3e411 DE |
2249 | const struct blockvector *bv; |
2250 | const struct block *block; | |
d12307c1 | 2251 | struct block_symbol result; |
43f3e411 DE |
2252 | |
2253 | bv = COMPUNIT_BLOCKVECTOR (cust); | |
a743abeb | 2254 | block = BLOCKVECTOR_BLOCK (bv, block_index); |
d12307c1 PMR |
2255 | result.symbol = block_lookup_symbol_primary (block, name, domain); |
2256 | result.block = block; | |
de82891c TV |
2257 | if (result.symbol == NULL) |
2258 | continue; | |
2259 | if (best_symbol (result.symbol, domain)) | |
a743abeb | 2260 | { |
de82891c TV |
2261 | other = result; |
2262 | break; | |
2263 | } | |
2264 | if (symbol_matches_domain (result.symbol->language (), | |
2265 | SYMBOL_DOMAIN (result.symbol), domain)) | |
2266 | { | |
2267 | struct symbol *better | |
2268 | = better_symbol (other.symbol, result.symbol, domain); | |
2269 | if (better != other.symbol) | |
cc485e62 | 2270 | { |
de82891c TV |
2271 | other.symbol = better; |
2272 | other.block = block; | |
cc485e62 | 2273 | } |
de82891c TV |
2274 | } |
2275 | } | |
d12307c1 | 2276 | |
de82891c TV |
2277 | if (other.symbol != NULL) |
2278 | { | |
2279 | if (symbol_lookup_debug > 1) | |
2280 | { | |
2281 | fprintf_unfiltered (gdb_stdlog, " = %s (block %s)\n", | |
2282 | host_address_to_string (other.symbol), | |
2283 | host_address_to_string (other.block)); | |
a743abeb | 2284 | } |
de82891c TV |
2285 | other.symbol = fixup_symbol_section (other.symbol, objfile); |
2286 | return other; | |
a743abeb | 2287 | } |
19630284 | 2288 | |
cc485e62 DE |
2289 | if (symbol_lookup_debug > 1) |
2290 | fprintf_unfiltered (gdb_stdlog, " = NULL\n"); | |
6640a367 | 2291 | return {}; |
19630284 JB |
2292 | } |
2293 | ||
74016e12 | 2294 | /* Wrapper around lookup_symbol_in_objfile_symtabs for search_symbols. |
422d65e7 | 2295 | Look up LINKAGE_NAME in DOMAIN in the global and static blocks of OBJFILE |
01465b56 DE |
2296 | and all associated separate debug objfiles. |
2297 | ||
2298 | Normally we only look in OBJFILE, and not any separate debug objfiles | |
2299 | because the outer loop will cause them to be searched too. This case is | |
2300 | different. Here we're called from search_symbols where it will only | |
6471e7d2 | 2301 | call us for the objfile that contains a matching minsym. */ |
422d65e7 | 2302 | |
d12307c1 | 2303 | static struct block_symbol |
422d65e7 DE |
2304 | lookup_symbol_in_objfile_from_linkage_name (struct objfile *objfile, |
2305 | const char *linkage_name, | |
2306 | domain_enum domain) | |
2307 | { | |
2308 | enum language lang = current_language->la_language; | |
e9ad22ee | 2309 | struct objfile *main_objfile; |
422d65e7 | 2310 | |
2f408ecb PA |
2311 | demangle_result_storage storage; |
2312 | const char *modified_name = demangle_for_lookup (linkage_name, lang, storage); | |
2313 | ||
422d65e7 DE |
2314 | if (objfile->separate_debug_objfile_backlink) |
2315 | main_objfile = objfile->separate_debug_objfile_backlink; | |
2316 | else | |
2317 | main_objfile = objfile; | |
2318 | ||
bde09ab7 | 2319 | for (::objfile *cur_objfile : main_objfile->separate_debug_objfiles ()) |
422d65e7 | 2320 | { |
d12307c1 PMR |
2321 | struct block_symbol result; |
2322 | ||
2323 | result = lookup_symbol_in_objfile_symtabs (cur_objfile, GLOBAL_BLOCK, | |
2324 | modified_name, domain); | |
2325 | if (result.symbol == NULL) | |
2326 | result = lookup_symbol_in_objfile_symtabs (cur_objfile, STATIC_BLOCK, | |
2327 | modified_name, domain); | |
2328 | if (result.symbol != NULL) | |
2f408ecb | 2329 | return result; |
422d65e7 DE |
2330 | } |
2331 | ||
6640a367 | 2332 | return {}; |
422d65e7 DE |
2333 | } |
2334 | ||
08c23b0d TT |
2335 | /* A helper function that throws an exception when a symbol was found |
2336 | in a psymtab but not in a symtab. */ | |
2337 | ||
2338 | static void ATTRIBUTE_NORETURN | |
ddbcedf5 | 2339 | error_in_psymtab_expansion (enum block_enum block_index, const char *name, |
43f3e411 | 2340 | struct compunit_symtab *cust) |
08c23b0d TT |
2341 | { |
2342 | error (_("\ | |
2343 | Internal: %s symbol `%s' found in %s psymtab but not in symtab.\n\ | |
2344 | %s may be an inlined function, or may be a template function\n \ | |
2345 | (if a template, try specifying an instantiation: %s<type>)."), | |
f88cb4b6 | 2346 | block_index == GLOBAL_BLOCK ? "global" : "static", |
43f3e411 DE |
2347 | name, |
2348 | symtab_to_filename_for_display (compunit_primary_filetab (cust)), | |
2349 | name, name); | |
08c23b0d TT |
2350 | } |
2351 | ||
74016e12 DE |
2352 | /* A helper function for various lookup routines that interfaces with |
2353 | the "quick" symbol table functions. */ | |
8155455b | 2354 | |
d12307c1 | 2355 | static struct block_symbol |
ddbcedf5 CB |
2356 | lookup_symbol_via_quick_fns (struct objfile *objfile, |
2357 | enum block_enum block_index, const char *name, | |
2358 | const domain_enum domain) | |
8155455b | 2359 | { |
43f3e411 | 2360 | struct compunit_symtab *cust; |
346d1dfe | 2361 | const struct blockvector *bv; |
8155455b | 2362 | const struct block *block; |
d12307c1 | 2363 | struct block_symbol result; |
8155455b | 2364 | |
cc485e62 DE |
2365 | if (symbol_lookup_debug > 1) |
2366 | { | |
2367 | fprintf_unfiltered (gdb_stdlog, | |
2368 | "lookup_symbol_via_quick_fns (%s, %s, %s, %s)\n", | |
2369 | objfile_debug_name (objfile), | |
2370 | block_index == GLOBAL_BLOCK | |
2371 | ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
2372 | name, domain_name (domain)); | |
2373 | } | |
2374 | ||
4d080b46 | 2375 | cust = objfile->lookup_symbol (block_index, name, domain); |
43f3e411 | 2376 | if (cust == NULL) |
cc485e62 DE |
2377 | { |
2378 | if (symbol_lookup_debug > 1) | |
2379 | { | |
2380 | fprintf_unfiltered (gdb_stdlog, | |
2381 | "lookup_symbol_via_quick_fns (...) = NULL\n"); | |
2382 | } | |
6640a367 | 2383 | return {}; |
cc485e62 | 2384 | } |
8155455b | 2385 | |
43f3e411 | 2386 | bv = COMPUNIT_BLOCKVECTOR (cust); |
f88cb4b6 | 2387 | block = BLOCKVECTOR_BLOCK (bv, block_index); |
de63c46b PA |
2388 | result.symbol = block_lookup_symbol (block, name, |
2389 | symbol_name_match_type::FULL, domain); | |
d12307c1 | 2390 | if (result.symbol == NULL) |
43f3e411 | 2391 | error_in_psymtab_expansion (block_index, name, cust); |
cc485e62 DE |
2392 | |
2393 | if (symbol_lookup_debug > 1) | |
2394 | { | |
2395 | fprintf_unfiltered (gdb_stdlog, | |
2396 | "lookup_symbol_via_quick_fns (...) = %s (block %s)\n", | |
d12307c1 | 2397 | host_address_to_string (result.symbol), |
cc485e62 DE |
2398 | host_address_to_string (block)); |
2399 | } | |
2400 | ||
d12307c1 PMR |
2401 | result.symbol = fixup_symbol_section (result.symbol, objfile); |
2402 | result.block = block; | |
2403 | return result; | |
8155455b DC |
2404 | } |
2405 | ||
a78a19b1 | 2406 | /* See language.h. */ |
5f9a71c3 | 2407 | |
d12307c1 | 2408 | struct block_symbol |
a78a19b1 AB |
2409 | language_defn::lookup_symbol_nonlocal (const char *name, |
2410 | const struct block *block, | |
2411 | const domain_enum domain) const | |
5f9a71c3 | 2412 | { |
d12307c1 | 2413 | struct block_symbol result; |
5f9a71c3 | 2414 | |
d9060ba6 DE |
2415 | /* NOTE: dje/2014-10-26: The lookup in all objfiles search could skip |
2416 | the current objfile. Searching the current objfile first is useful | |
2417 | for both matching user expectations as well as performance. */ | |
2418 | ||
d12307c1 PMR |
2419 | result = lookup_symbol_in_static_block (name, block, domain); |
2420 | if (result.symbol != NULL) | |
2421 | return result; | |
5f9a71c3 | 2422 | |
1994afbf DE |
2423 | /* If we didn't find a definition for a builtin type in the static block, |
2424 | search for it now. This is actually the right thing to do and can be | |
2425 | a massive performance win. E.g., when debugging a program with lots of | |
2426 | shared libraries we could search all of them only to find out the | |
2427 | builtin type isn't defined in any of them. This is common for types | |
2428 | like "void". */ | |
2429 | if (domain == VAR_DOMAIN) | |
2430 | { | |
2431 | struct gdbarch *gdbarch; | |
2432 | ||
2433 | if (block == NULL) | |
2434 | gdbarch = target_gdbarch (); | |
2435 | else | |
2436 | gdbarch = block_gdbarch (block); | |
a78a19b1 | 2437 | result.symbol = language_lookup_primitive_type_as_symbol (this, |
d12307c1 PMR |
2438 | gdbarch, name); |
2439 | result.block = NULL; | |
2440 | if (result.symbol != NULL) | |
2441 | return result; | |
1994afbf DE |
2442 | } |
2443 | ||
08724ab7 | 2444 | return lookup_global_symbol (name, block, domain); |
5f9a71c3 DC |
2445 | } |
2446 | ||
cf901d3b | 2447 | /* See symtab.h. */ |
5f9a71c3 | 2448 | |
d12307c1 | 2449 | struct block_symbol |
24d864bb DE |
2450 | lookup_symbol_in_static_block (const char *name, |
2451 | const struct block *block, | |
2452 | const domain_enum domain) | |
5f9a71c3 DC |
2453 | { |
2454 | const struct block *static_block = block_static_block (block); | |
cc485e62 | 2455 | struct symbol *sym; |
5f9a71c3 | 2456 | |
cc485e62 | 2457 | if (static_block == NULL) |
6640a367 | 2458 | return {}; |
cc485e62 DE |
2459 | |
2460 | if (symbol_lookup_debug) | |
2461 | { | |
d6bc0792 TT |
2462 | struct objfile *objfile = (block == nullptr |
2463 | ? nullptr : block_objfile (block)); | |
cc485e62 DE |
2464 | |
2465 | fprintf_unfiltered (gdb_stdlog, | |
2466 | "lookup_symbol_in_static_block (%s, %s (objfile %s)," | |
2467 | " %s)\n", | |
2468 | name, | |
2469 | host_address_to_string (block), | |
2470 | objfile_debug_name (objfile), | |
2471 | domain_name (domain)); | |
2472 | } | |
2473 | ||
de63c46b PA |
2474 | sym = lookup_symbol_in_block (name, |
2475 | symbol_name_match_type::FULL, | |
2476 | static_block, domain); | |
cc485e62 DE |
2477 | if (symbol_lookup_debug) |
2478 | { | |
2479 | fprintf_unfiltered (gdb_stdlog, | |
2480 | "lookup_symbol_in_static_block (...) = %s\n", | |
2481 | sym != NULL ? host_address_to_string (sym) : "NULL"); | |
2482 | } | |
d12307c1 | 2483 | return (struct block_symbol) {sym, static_block}; |
5f9a71c3 DC |
2484 | } |
2485 | ||
af3768e9 DE |
2486 | /* Perform the standard symbol lookup of NAME in OBJFILE: |
2487 | 1) First search expanded symtabs, and if not found | |
2488 | 2) Search the "quick" symtabs (partial or .gdb_index). | |
2489 | BLOCK_INDEX is one of GLOBAL_BLOCK or STATIC_BLOCK. */ | |
2490 | ||
d12307c1 | 2491 | static struct block_symbol |
c32e6a04 | 2492 | lookup_symbol_in_objfile (struct objfile *objfile, enum block_enum block_index, |
af3768e9 DE |
2493 | const char *name, const domain_enum domain) |
2494 | { | |
d12307c1 | 2495 | struct block_symbol result; |
af3768e9 | 2496 | |
c32e6a04 CB |
2497 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2498 | ||
cc485e62 DE |
2499 | if (symbol_lookup_debug) |
2500 | { | |
2501 | fprintf_unfiltered (gdb_stdlog, | |
2502 | "lookup_symbol_in_objfile (%s, %s, %s, %s)\n", | |
2503 | objfile_debug_name (objfile), | |
2504 | block_index == GLOBAL_BLOCK | |
2505 | ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
2506 | name, domain_name (domain)); | |
2507 | } | |
2508 | ||
af3768e9 DE |
2509 | result = lookup_symbol_in_objfile_symtabs (objfile, block_index, |
2510 | name, domain); | |
d12307c1 | 2511 | if (result.symbol != NULL) |
af3768e9 | 2512 | { |
cc485e62 DE |
2513 | if (symbol_lookup_debug) |
2514 | { | |
2515 | fprintf_unfiltered (gdb_stdlog, | |
2516 | "lookup_symbol_in_objfile (...) = %s" | |
2517 | " (in symtabs)\n", | |
d12307c1 | 2518 | host_address_to_string (result.symbol)); |
cc485e62 DE |
2519 | } |
2520 | return result; | |
af3768e9 DE |
2521 | } |
2522 | ||
cc485e62 DE |
2523 | result = lookup_symbol_via_quick_fns (objfile, block_index, |
2524 | name, domain); | |
2525 | if (symbol_lookup_debug) | |
2526 | { | |
2527 | fprintf_unfiltered (gdb_stdlog, | |
2528 | "lookup_symbol_in_objfile (...) = %s%s\n", | |
d12307c1 PMR |
2529 | result.symbol != NULL |
2530 | ? host_address_to_string (result.symbol) | |
cc485e62 | 2531 | : "NULL", |
d12307c1 | 2532 | result.symbol != NULL ? " (via quick fns)" : ""); |
cc485e62 | 2533 | } |
af3768e9 DE |
2534 | return result; |
2535 | } | |
2536 | ||
d3214198 TV |
2537 | /* Find the language for partial symbol with NAME. */ |
2538 | ||
2539 | static enum language | |
2540 | find_quick_global_symbol_language (const char *name, const domain_enum domain) | |
2541 | { | |
d3214198 TV |
2542 | for (objfile *objfile : current_program_space->objfiles ()) |
2543 | { | |
2544 | bool symbol_found_p; | |
2545 | enum language lang | |
4d080b46 TT |
2546 | = objfile->lookup_global_symbol_language (name, domain, &symbol_found_p); |
2547 | if (symbol_found_p) | |
2548 | return lang; | |
d3214198 TV |
2549 | } |
2550 | ||
2551 | return language_unknown; | |
2552 | } | |
2553 | ||
19630284 JB |
2554 | /* Private data to be used with lookup_symbol_global_iterator_cb. */ |
2555 | ||
9aa55206 | 2556 | struct global_or_static_sym_lookup_data |
19630284 JB |
2557 | { |
2558 | /* The name of the symbol we are searching for. */ | |
2559 | const char *name; | |
2560 | ||
2561 | /* The domain to use for our search. */ | |
2562 | domain_enum domain; | |
2563 | ||
9aa55206 CB |
2564 | /* The block index in which to search. */ |
2565 | enum block_enum block_index; | |
2566 | ||
19630284 | 2567 | /* The field where the callback should store the symbol if found. |
d12307c1 PMR |
2568 | It should be initialized to {NULL, NULL} before the search is started. */ |
2569 | struct block_symbol result; | |
19630284 JB |
2570 | }; |
2571 | ||
2572 | /* A callback function for gdbarch_iterate_over_objfiles_in_search_order. | |
9aa55206 CB |
2573 | It searches by name for a symbol in the block given by BLOCK_INDEX of the |
2574 | given OBJFILE. The arguments for the search are passed via CB_DATA, which | |
2575 | in reality is a pointer to struct global_or_static_sym_lookup_data. */ | |
19630284 JB |
2576 | |
2577 | static int | |
9aa55206 CB |
2578 | lookup_symbol_global_or_static_iterator_cb (struct objfile *objfile, |
2579 | void *cb_data) | |
19630284 | 2580 | { |
9aa55206 CB |
2581 | struct global_or_static_sym_lookup_data *data = |
2582 | (struct global_or_static_sym_lookup_data *) cb_data; | |
19630284 | 2583 | |
d12307c1 PMR |
2584 | gdb_assert (data->result.symbol == NULL |
2585 | && data->result.block == NULL); | |
19630284 | 2586 | |
9aa55206 | 2587 | data->result = lookup_symbol_in_objfile (objfile, data->block_index, |
af3768e9 | 2588 | data->name, data->domain); |
19630284 JB |
2589 | |
2590 | /* If we found a match, tell the iterator to stop. Otherwise, | |
2591 | keep going. */ | |
d12307c1 | 2592 | return (data->result.symbol != NULL); |
19630284 JB |
2593 | } |
2594 | ||
9aa55206 CB |
2595 | /* This function contains the common code of lookup_{global,static}_symbol. |
2596 | OBJFILE is only used if BLOCK_INDEX is GLOBAL_SCOPE, in which case it is | |
2597 | the objfile to start the lookup in. */ | |
5f9a71c3 | 2598 | |
9aa55206 CB |
2599 | static struct block_symbol |
2600 | lookup_global_or_static_symbol (const char *name, | |
2601 | enum block_enum block_index, | |
2602 | struct objfile *objfile, | |
2603 | const domain_enum domain) | |
5f9a71c3 | 2604 | { |
f57d2163 | 2605 | struct symbol_cache *cache = get_symbol_cache (current_program_space); |
d12307c1 | 2606 | struct block_symbol result; |
9aa55206 | 2607 | struct global_or_static_sym_lookup_data lookup_data; |
f57d2163 DE |
2608 | struct block_symbol_cache *bsc; |
2609 | struct symbol_cache_slot *slot; | |
b2fb95e0 | 2610 | |
9aa55206 CB |
2611 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2612 | gdb_assert (objfile == nullptr || block_index == GLOBAL_BLOCK); | |
f57d2163 DE |
2613 | |
2614 | /* First see if we can find the symbol in the cache. | |
2615 | This works because we use the current objfile to qualify the lookup. */ | |
9aa55206 | 2616 | result = symbol_cache_lookup (cache, objfile, block_index, name, domain, |
d12307c1 PMR |
2617 | &bsc, &slot); |
2618 | if (result.symbol != NULL) | |
f57d2163 | 2619 | { |
d12307c1 | 2620 | if (SYMBOL_LOOKUP_FAILED_P (result)) |
6640a367 | 2621 | return {}; |
d12307c1 | 2622 | return result; |
f57d2163 DE |
2623 | } |
2624 | ||
626ca2c0 | 2625 | /* Do a global search (of global blocks, heh). */ |
d12307c1 | 2626 | if (result.symbol == NULL) |
f57d2163 DE |
2627 | { |
2628 | memset (&lookup_data, 0, sizeof (lookup_data)); | |
2629 | lookup_data.name = name; | |
9aa55206 | 2630 | lookup_data.block_index = block_index; |
f57d2163 DE |
2631 | lookup_data.domain = domain; |
2632 | gdbarch_iterate_over_objfiles_in_search_order | |
08feed99 | 2633 | (objfile != NULL ? objfile->arch () : target_gdbarch (), |
9aa55206 | 2634 | lookup_symbol_global_or_static_iterator_cb, &lookup_data, objfile); |
d12307c1 | 2635 | result = lookup_data.result; |
f57d2163 | 2636 | } |
6a3ca067 | 2637 | |
d12307c1 PMR |
2638 | if (result.symbol != NULL) |
2639 | symbol_cache_mark_found (bsc, slot, objfile, result.symbol, result.block); | |
f57d2163 DE |
2640 | else |
2641 | symbol_cache_mark_not_found (bsc, slot, objfile, name, domain); | |
2642 | ||
d12307c1 | 2643 | return result; |
5f9a71c3 DC |
2644 | } |
2645 | ||
9aa55206 CB |
2646 | /* See symtab.h. */ |
2647 | ||
2648 | struct block_symbol | |
2649 | lookup_static_symbol (const char *name, const domain_enum domain) | |
2650 | { | |
2651 | return lookup_global_or_static_symbol (name, STATIC_BLOCK, nullptr, domain); | |
2652 | } | |
2653 | ||
2654 | /* See symtab.h. */ | |
2655 | ||
2656 | struct block_symbol | |
2657 | lookup_global_symbol (const char *name, | |
2658 | const struct block *block, | |
2659 | const domain_enum domain) | |
2660 | { | |
d3d32391 AB |
2661 | /* If a block was passed in, we want to search the corresponding |
2662 | global block first. This yields "more expected" behavior, and is | |
2663 | needed to support 'FILENAME'::VARIABLE lookups. */ | |
2664 | const struct block *global_block = block_global_block (block); | |
70bc38f5 | 2665 | symbol *sym = NULL; |
d3d32391 AB |
2666 | if (global_block != nullptr) |
2667 | { | |
70bc38f5 TV |
2668 | sym = lookup_symbol_in_block (name, |
2669 | symbol_name_match_type::FULL, | |
2670 | global_block, domain); | |
2671 | if (sym != NULL && best_symbol (sym, domain)) | |
d3d32391 AB |
2672 | return { sym, global_block }; |
2673 | } | |
2674 | ||
d6bc0792 TT |
2675 | struct objfile *objfile = nullptr; |
2676 | if (block != nullptr) | |
2677 | { | |
2678 | objfile = block_objfile (block); | |
2679 | if (objfile->separate_debug_objfile_backlink != nullptr) | |
2680 | objfile = objfile->separate_debug_objfile_backlink; | |
2681 | } | |
2682 | ||
70bc38f5 TV |
2683 | block_symbol bs |
2684 | = lookup_global_or_static_symbol (name, GLOBAL_BLOCK, objfile, domain); | |
2685 | if (better_symbol (sym, bs.symbol, domain) == sym) | |
2686 | return { sym, global_block }; | |
2687 | else | |
2688 | return bs; | |
9aa55206 CB |
2689 | } |
2690 | ||
ececd218 | 2691 | bool |
4186eb54 KS |
2692 | symbol_matches_domain (enum language symbol_language, |
2693 | domain_enum symbol_domain, | |
2694 | domain_enum domain) | |
2695 | { | |
2696 | /* For C++ "struct foo { ... }" also defines a typedef for "foo". | |
4186eb54 KS |
2697 | Similarly, any Ada type declaration implicitly defines a typedef. */ |
2698 | if (symbol_language == language_cplus | |
2699 | || symbol_language == language_d | |
65547233 TT |
2700 | || symbol_language == language_ada |
2701 | || symbol_language == language_rust) | |
4186eb54 KS |
2702 | { |
2703 | if ((domain == VAR_DOMAIN || domain == STRUCT_DOMAIN) | |
2704 | && symbol_domain == STRUCT_DOMAIN) | |
ececd218 | 2705 | return true; |
4186eb54 KS |
2706 | } |
2707 | /* For all other languages, strict match is required. */ | |
2708 | return (symbol_domain == domain); | |
2709 | } | |
2710 | ||
cf901d3b | 2711 | /* See symtab.h. */ |
c906108c | 2712 | |
ccefe4c4 TT |
2713 | struct type * |
2714 | lookup_transparent_type (const char *name) | |
c906108c | 2715 | { |
54f4ca46 | 2716 | return current_language->lookup_transparent_type (name); |
ccefe4c4 | 2717 | } |
9af17804 | 2718 | |
ccefe4c4 TT |
2719 | /* A helper for basic_lookup_transparent_type that interfaces with the |
2720 | "quick" symbol table functions. */ | |
357e46e7 | 2721 | |
ccefe4c4 | 2722 | static struct type * |
ddbcedf5 CB |
2723 | basic_lookup_transparent_type_quick (struct objfile *objfile, |
2724 | enum block_enum block_index, | |
ccefe4c4 TT |
2725 | const char *name) |
2726 | { | |
43f3e411 | 2727 | struct compunit_symtab *cust; |
346d1dfe | 2728 | const struct blockvector *bv; |
582942f4 | 2729 | const struct block *block; |
ccefe4c4 | 2730 | struct symbol *sym; |
c906108c | 2731 | |
4d080b46 | 2732 | cust = objfile->lookup_symbol (block_index, name, STRUCT_DOMAIN); |
43f3e411 | 2733 | if (cust == NULL) |
ccefe4c4 | 2734 | return NULL; |
c906108c | 2735 | |
43f3e411 | 2736 | bv = COMPUNIT_BLOCKVECTOR (cust); |
f88cb4b6 | 2737 | block = BLOCKVECTOR_BLOCK (bv, block_index); |
b2e2f908 DE |
2738 | sym = block_find_symbol (block, name, STRUCT_DOMAIN, |
2739 | block_find_non_opaque_type, NULL); | |
2740 | if (sym == NULL) | |
43f3e411 | 2741 | error_in_psymtab_expansion (block_index, name, cust); |
b2e2f908 DE |
2742 | gdb_assert (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))); |
2743 | return SYMBOL_TYPE (sym); | |
2744 | } | |
08c23b0d | 2745 | |
b2e2f908 DE |
2746 | /* Subroutine of basic_lookup_transparent_type to simplify it. |
2747 | Look up the non-opaque definition of NAME in BLOCK_INDEX of OBJFILE. | |
2748 | BLOCK_INDEX is either GLOBAL_BLOCK or STATIC_BLOCK. */ | |
2749 | ||
2750 | static struct type * | |
ddbcedf5 CB |
2751 | basic_lookup_transparent_type_1 (struct objfile *objfile, |
2752 | enum block_enum block_index, | |
b2e2f908 DE |
2753 | const char *name) |
2754 | { | |
b2e2f908 DE |
2755 | const struct blockvector *bv; |
2756 | const struct block *block; | |
2757 | const struct symbol *sym; | |
2758 | ||
b669c953 | 2759 | for (compunit_symtab *cust : objfile->compunits ()) |
b2e2f908 DE |
2760 | { |
2761 | bv = COMPUNIT_BLOCKVECTOR (cust); | |
2762 | block = BLOCKVECTOR_BLOCK (bv, block_index); | |
2763 | sym = block_find_symbol (block, name, STRUCT_DOMAIN, | |
2764 | block_find_non_opaque_type, NULL); | |
2765 | if (sym != NULL) | |
2766 | { | |
2767 | gdb_assert (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))); | |
2768 | return SYMBOL_TYPE (sym); | |
2769 | } | |
2770 | } | |
c906108c | 2771 | |
ccefe4c4 | 2772 | return NULL; |
b368761e | 2773 | } |
c906108c | 2774 | |
b368761e DC |
2775 | /* The standard implementation of lookup_transparent_type. This code |
2776 | was modeled on lookup_symbol -- the parts not relevant to looking | |
2777 | up types were just left out. In particular it's assumed here that | |
cf901d3b | 2778 | types are available in STRUCT_DOMAIN and only in file-static or |
b368761e | 2779 | global blocks. */ |
c906108c SS |
2780 | |
2781 | struct type * | |
b368761e | 2782 | basic_lookup_transparent_type (const char *name) |
c906108c | 2783 | { |
ccefe4c4 | 2784 | struct type *t; |
c906108c SS |
2785 | |
2786 | /* Now search all the global symbols. Do the symtab's first, then | |
c378eb4e | 2787 | check the psymtab's. If a psymtab indicates the existence |
c906108c SS |
2788 | of the desired name as a global, then do psymtab-to-symtab |
2789 | conversion on the fly and return the found symbol. */ | |
c5aa993b | 2790 | |
2030c079 | 2791 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2792 | { |
2793 | t = basic_lookup_transparent_type_1 (objfile, GLOBAL_BLOCK, name); | |
2794 | if (t) | |
2795 | return t; | |
2796 | } | |
c906108c | 2797 | |
2030c079 | 2798 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2799 | { |
2800 | t = basic_lookup_transparent_type_quick (objfile, GLOBAL_BLOCK, name); | |
2801 | if (t) | |
2802 | return t; | |
2803 | } | |
c906108c SS |
2804 | |
2805 | /* Now search the static file-level symbols. | |
2806 | Not strictly correct, but more useful than an error. | |
2807 | Do the symtab's first, then | |
c378eb4e | 2808 | check the psymtab's. If a psymtab indicates the existence |
c906108c | 2809 | of the desired name as a file-level static, then do psymtab-to-symtab |
c378eb4e | 2810 | conversion on the fly and return the found symbol. */ |
c906108c | 2811 | |
2030c079 | 2812 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2813 | { |
2814 | t = basic_lookup_transparent_type_1 (objfile, STATIC_BLOCK, name); | |
2815 | if (t) | |
2816 | return t; | |
2817 | } | |
c906108c | 2818 | |
2030c079 | 2819 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2820 | { |
2821 | t = basic_lookup_transparent_type_quick (objfile, STATIC_BLOCK, name); | |
2822 | if (t) | |
2823 | return t; | |
2824 | } | |
ccefe4c4 | 2825 | |
c906108c SS |
2826 | return (struct type *) 0; |
2827 | } | |
2828 | ||
6969f124 | 2829 | /* See symtab.h. */ |
f8eba3c6 | 2830 | |
6969f124 | 2831 | bool |
b5ec771e PA |
2832 | iterate_over_symbols (const struct block *block, |
2833 | const lookup_name_info &name, | |
f8eba3c6 | 2834 | const domain_enum domain, |
14bc53a8 | 2835 | gdb::function_view<symbol_found_callback_ftype> callback) |
f8eba3c6 | 2836 | { |
4eeaa230 DE |
2837 | struct block_iterator iter; |
2838 | struct symbol *sym; | |
f8eba3c6 | 2839 | |
358d6ab3 | 2840 | ALL_BLOCK_SYMBOLS_WITH_NAME (block, name, iter, sym) |
4eeaa230 | 2841 | { |
c1b5c1eb | 2842 | if (symbol_matches_domain (sym->language (), SYMBOL_DOMAIN (sym), domain)) |
f8eba3c6 | 2843 | { |
7e41c8db KS |
2844 | struct block_symbol block_sym = {sym, block}; |
2845 | ||
2846 | if (!callback (&block_sym)) | |
6969f124 | 2847 | return false; |
f8eba3c6 | 2848 | } |
f8eba3c6 | 2849 | } |
6969f124 | 2850 | return true; |
f8eba3c6 TT |
2851 | } |
2852 | ||
6a3dbf1b TT |
2853 | /* See symtab.h. */ |
2854 | ||
2855 | bool | |
2856 | iterate_over_symbols_terminated | |
2857 | (const struct block *block, | |
2858 | const lookup_name_info &name, | |
2859 | const domain_enum domain, | |
2860 | gdb::function_view<symbol_found_callback_ftype> callback) | |
2861 | { | |
2862 | if (!iterate_over_symbols (block, name, domain, callback)) | |
2863 | return false; | |
2864 | struct block_symbol block_sym = {nullptr, block}; | |
2865 | return callback (&block_sym); | |
2866 | } | |
2867 | ||
43f3e411 DE |
2868 | /* Find the compunit symtab associated with PC and SECTION. |
2869 | This will read in debug info as necessary. */ | |
c906108c | 2870 | |
43f3e411 DE |
2871 | struct compunit_symtab * |
2872 | find_pc_sect_compunit_symtab (CORE_ADDR pc, struct obj_section *section) | |
c906108c | 2873 | { |
43f3e411 | 2874 | struct compunit_symtab *best_cust = NULL; |
61eb46a4 | 2875 | CORE_ADDR best_cust_range = 0; |
77e371c0 | 2876 | struct bound_minimal_symbol msymbol; |
8a48e967 DJ |
2877 | |
2878 | /* If we know that this is not a text address, return failure. This is | |
2879 | necessary because we loop based on the block's high and low code | |
2880 | addresses, which do not include the data ranges, and because | |
2881 | we call find_pc_sect_psymtab which has a similar restriction based | |
2882 | on the partial_symtab's texthigh and textlow. */ | |
77e371c0 | 2883 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); |
1ed9f74e | 2884 | if (msymbol.minsym && msymbol.minsym->data_p ()) |
8a48e967 | 2885 | return NULL; |
c906108c SS |
2886 | |
2887 | /* Search all symtabs for the one whose file contains our address, and which | |
2888 | is the smallest of all the ones containing the address. This is designed | |
2889 | to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000 | |
2890 | and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from | |
2891 | 0x1000-0x4000, but for address 0x2345 we want to return symtab b. | |
2892 | ||
2893 | This happens for native ecoff format, where code from included files | |
c378eb4e | 2894 | gets its own symtab. The symtab for the included file should have |
c906108c SS |
2895 | been read in already via the dependency mechanism. |
2896 | It might be swifter to create several symtabs with the same name | |
2897 | like xcoff does (I'm not sure). | |
2898 | ||
2899 | It also happens for objfiles that have their functions reordered. | |
2900 | For these, the symtab we are looking for is not necessarily read in. */ | |
2901 | ||
2030c079 | 2902 | for (objfile *obj_file : current_program_space->objfiles ()) |
d8aeb77f | 2903 | { |
b669c953 | 2904 | for (compunit_symtab *cust : obj_file->compunits ()) |
d8aeb77f | 2905 | { |
61eb46a4 TV |
2906 | const struct blockvector *bv = COMPUNIT_BLOCKVECTOR (cust); |
2907 | const struct block *global_block | |
2908 | = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
2909 | CORE_ADDR start = BLOCK_START (global_block); | |
2910 | CORE_ADDR end = BLOCK_END (global_block); | |
2911 | bool in_range_p = start <= pc && pc < end; | |
2912 | if (!in_range_p) | |
2913 | continue; | |
43f3e411 | 2914 | |
1b00ef06 TV |
2915 | if (BLOCKVECTOR_MAP (bv)) |
2916 | { | |
2917 | if (addrmap_find (BLOCKVECTOR_MAP (bv), pc) == nullptr) | |
2918 | continue; | |
2919 | ||
2920 | return cust; | |
2921 | } | |
2922 | ||
61eb46a4 TV |
2923 | CORE_ADDR range = end - start; |
2924 | if (best_cust != nullptr | |
2925 | && range >= best_cust_range) | |
2926 | /* Cust doesn't have a smaller range than best_cust, skip it. */ | |
2927 | continue; | |
2928 | ||
2929 | /* For an objfile that has its functions reordered, | |
2930 | find_pc_psymtab will find the proper partial symbol table | |
2931 | and we simply return its corresponding symtab. */ | |
2932 | /* In order to better support objfiles that contain both | |
2933 | stabs and coff debugging info, we continue on if a psymtab | |
2934 | can't be found. */ | |
4d080b46 | 2935 | if ((obj_file->flags & OBJF_REORDERED) != 0) |
61eb46a4 TV |
2936 | { |
2937 | struct compunit_symtab *result; | |
2938 | ||
2939 | result | |
4d080b46 TT |
2940 | = obj_file->find_pc_sect_compunit_symtab (msymbol, |
2941 | pc, | |
2942 | section, | |
2943 | 0); | |
61eb46a4 TV |
2944 | if (result != NULL) |
2945 | return result; | |
2946 | } | |
c906108c | 2947 | |
61eb46a4 | 2948 | if (section != 0) |
d8aeb77f | 2949 | { |
61eb46a4 TV |
2950 | struct symbol *sym = NULL; |
2951 | struct block_iterator iter; | |
2952 | ||
bd24c5d6 TV |
2953 | for (int b_index = GLOBAL_BLOCK; |
2954 | b_index <= STATIC_BLOCK && sym == NULL; | |
2955 | ++b_index) | |
d8aeb77f | 2956 | { |
bd24c5d6 TV |
2957 | const struct block *b = BLOCKVECTOR_BLOCK (bv, b_index); |
2958 | ALL_BLOCK_SYMBOLS (b, iter, sym) | |
2959 | { | |
2960 | fixup_symbol_section (sym, obj_file); | |
ebbc3a7d | 2961 | if (matching_obj_sections (sym->obj_section (obj_file), |
bd24c5d6 TV |
2962 | section)) |
2963 | break; | |
2964 | } | |
d8aeb77f | 2965 | } |
61eb46a4 TV |
2966 | if (sym == NULL) |
2967 | continue; /* No symbol in this symtab matches | |
d8aeb77f | 2968 | section. */ |
d8aeb77f | 2969 | } |
61eb46a4 TV |
2970 | |
2971 | /* Cust is best found sofar, save it. */ | |
2972 | best_cust = cust; | |
2973 | best_cust_range = range; | |
d8aeb77f TT |
2974 | } |
2975 | } | |
c906108c | 2976 | |
43f3e411 DE |
2977 | if (best_cust != NULL) |
2978 | return best_cust; | |
c906108c | 2979 | |
072cabfe DE |
2980 | /* Not found in symtabs, search the "quick" symtabs (e.g. psymtabs). */ |
2981 | ||
2030c079 | 2982 | for (objfile *objf : current_program_space->objfiles ()) |
aed57c53 | 2983 | { |
4d080b46 TT |
2984 | struct compunit_symtab *result |
2985 | = objf->find_pc_sect_compunit_symtab (msymbol, pc, section, 1); | |
aed57c53 TT |
2986 | if (result != NULL) |
2987 | return result; | |
2988 | } | |
ccefe4c4 TT |
2989 | |
2990 | return NULL; | |
c906108c SS |
2991 | } |
2992 | ||
43f3e411 DE |
2993 | /* Find the compunit symtab associated with PC. |
2994 | This will read in debug info as necessary. | |
2995 | Backward compatibility, no section. */ | |
c906108c | 2996 | |
43f3e411 DE |
2997 | struct compunit_symtab * |
2998 | find_pc_compunit_symtab (CORE_ADDR pc) | |
c906108c | 2999 | { |
43f3e411 | 3000 | return find_pc_sect_compunit_symtab (pc, find_pc_mapped_section (pc)); |
c906108c | 3001 | } |
71a3c369 TT |
3002 | |
3003 | /* See symtab.h. */ | |
3004 | ||
3005 | struct symbol * | |
3006 | find_symbol_at_address (CORE_ADDR address) | |
3007 | { | |
1f2624a3 TT |
3008 | /* A helper function to search a given symtab for a symbol matching |
3009 | ADDR. */ | |
3010 | auto search_symtab = [] (compunit_symtab *symtab, CORE_ADDR addr) -> symbol * | |
aed57c53 | 3011 | { |
1f2624a3 | 3012 | const struct blockvector *bv = COMPUNIT_BLOCKVECTOR (symtab); |
71a3c369 | 3013 | |
1f2624a3 | 3014 | for (int i = GLOBAL_BLOCK; i <= STATIC_BLOCK; ++i) |
aed57c53 | 3015 | { |
1f2624a3 TT |
3016 | const struct block *b = BLOCKVECTOR_BLOCK (bv, i); |
3017 | struct block_iterator iter; | |
3018 | struct symbol *sym; | |
71a3c369 | 3019 | |
1f2624a3 | 3020 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
71a3c369 | 3021 | { |
1f2624a3 TT |
3022 | if (SYMBOL_CLASS (sym) == LOC_STATIC |
3023 | && SYMBOL_VALUE_ADDRESS (sym) == addr) | |
3024 | return sym; | |
3025 | } | |
3026 | } | |
3027 | return nullptr; | |
3028 | }; | |
aed57c53 | 3029 | |
1f2624a3 TT |
3030 | for (objfile *objfile : current_program_space->objfiles ()) |
3031 | { | |
4d080b46 TT |
3032 | /* If this objfile was read with -readnow, then we need to |
3033 | search the symtabs directly. */ | |
3034 | if ((objfile->flags & OBJF_READNOW) != 0) | |
1f2624a3 TT |
3035 | { |
3036 | for (compunit_symtab *symtab : objfile->compunits ()) | |
3037 | { | |
3038 | struct symbol *sym = search_symtab (symtab, address); | |
3039 | if (sym != nullptr) | |
3040 | return sym; | |
3041 | } | |
3042 | } | |
3043 | else | |
3044 | { | |
3045 | struct compunit_symtab *symtab | |
4d080b46 | 3046 | = objfile->find_compunit_symtab_by_address (address); |
1f2624a3 TT |
3047 | if (symtab != NULL) |
3048 | { | |
3049 | struct symbol *sym = search_symtab (symtab, address); | |
3050 | if (sym != nullptr) | |
3051 | return sym; | |
71a3c369 | 3052 | } |
aed57c53 TT |
3053 | } |
3054 | } | |
71a3c369 TT |
3055 | |
3056 | return NULL; | |
3057 | } | |
3058 | ||
c906108c | 3059 | \f |
c5aa993b | 3060 | |
7e73cedf | 3061 | /* Find the source file and line number for a given PC value and SECTION. |
c906108c SS |
3062 | Return a structure containing a symtab pointer, a line number, |
3063 | and a pc range for the entire source line. | |
3064 | The value's .pc field is NOT the specified pc. | |
3065 | NOTCURRENT nonzero means, if specified pc is on a line boundary, | |
3066 | use the line that ends there. Otherwise, in that case, the line | |
3067 | that begins there is used. */ | |
3068 | ||
3069 | /* The big complication here is that a line may start in one file, and end just | |
3070 | before the start of another file. This usually occurs when you #include | |
3071 | code in the middle of a subroutine. To properly find the end of a line's PC | |
3072 | range, we must search all symtabs associated with this compilation unit, and | |
3073 | find the one whose first PC is closer than that of the next line in this | |
3074 | symtab. */ | |
3075 | ||
c906108c | 3076 | struct symtab_and_line |
714835d5 | 3077 | find_pc_sect_line (CORE_ADDR pc, struct obj_section *section, int notcurrent) |
c906108c | 3078 | { |
43f3e411 | 3079 | struct compunit_symtab *cust; |
52f0bd74 AC |
3080 | struct linetable *l; |
3081 | int len; | |
52f0bd74 | 3082 | struct linetable_entry *item; |
346d1dfe | 3083 | const struct blockvector *bv; |
7cbd4a93 | 3084 | struct bound_minimal_symbol msymbol; |
c906108c SS |
3085 | |
3086 | /* Info on best line seen so far, and where it starts, and its file. */ | |
3087 | ||
3088 | struct linetable_entry *best = NULL; | |
3089 | CORE_ADDR best_end = 0; | |
3090 | struct symtab *best_symtab = 0; | |
3091 | ||
3092 | /* Store here the first line number | |
3093 | of a file which contains the line at the smallest pc after PC. | |
3094 | If we don't find a line whose range contains PC, | |
3095 | we will use a line one less than this, | |
3096 | with a range from the start of that file to the first line's pc. */ | |
3097 | struct linetable_entry *alt = NULL; | |
c906108c SS |
3098 | |
3099 | /* Info on best line seen in this file. */ | |
3100 | ||
3101 | struct linetable_entry *prev; | |
3102 | ||
3103 | /* If this pc is not from the current frame, | |
3104 | it is the address of the end of a call instruction. | |
3105 | Quite likely that is the start of the following statement. | |
3106 | But what we want is the statement containing the instruction. | |
3107 | Fudge the pc to make sure we get that. */ | |
3108 | ||
b77b1eb7 JB |
3109 | /* It's tempting to assume that, if we can't find debugging info for |
3110 | any function enclosing PC, that we shouldn't search for line | |
3111 | number info, either. However, GAS can emit line number info for | |
3112 | assembly files --- very helpful when debugging hand-written | |
3113 | assembly code. In such a case, we'd have no debug info for the | |
3114 | function, but we would have line info. */ | |
648f4f79 | 3115 | |
c906108c SS |
3116 | if (notcurrent) |
3117 | pc -= 1; | |
3118 | ||
c5aa993b | 3119 | /* elz: added this because this function returned the wrong |
c906108c | 3120 | information if the pc belongs to a stub (import/export) |
c378eb4e | 3121 | to call a shlib function. This stub would be anywhere between |
9af17804 | 3122 | two functions in the target, and the line info was erroneously |
c378eb4e MS |
3123 | taken to be the one of the line before the pc. */ |
3124 | ||
c906108c | 3125 | /* RT: Further explanation: |
c5aa993b | 3126 | |
c906108c SS |
3127 | * We have stubs (trampolines) inserted between procedures. |
3128 | * | |
3129 | * Example: "shr1" exists in a shared library, and a "shr1" stub also | |
3130 | * exists in the main image. | |
3131 | * | |
3132 | * In the minimal symbol table, we have a bunch of symbols | |
c378eb4e | 3133 | * sorted by start address. The stubs are marked as "trampoline", |
c906108c SS |
3134 | * the others appear as text. E.g.: |
3135 | * | |
9af17804 | 3136 | * Minimal symbol table for main image |
c906108c SS |
3137 | * main: code for main (text symbol) |
3138 | * shr1: stub (trampoline symbol) | |
3139 | * foo: code for foo (text symbol) | |
3140 | * ... | |
3141 | * Minimal symbol table for "shr1" image: | |
3142 | * ... | |
3143 | * shr1: code for shr1 (text symbol) | |
3144 | * ... | |
3145 | * | |
3146 | * So the code below is trying to detect if we are in the stub | |
3147 | * ("shr1" stub), and if so, find the real code ("shr1" trampoline), | |
3148 | * and if found, do the symbolization from the real-code address | |
3149 | * rather than the stub address. | |
3150 | * | |
3151 | * Assumptions being made about the minimal symbol table: | |
3152 | * 1. lookup_minimal_symbol_by_pc() will return a trampoline only | |
c378eb4e | 3153 | * if we're really in the trampoline.s If we're beyond it (say |
9af17804 | 3154 | * we're in "foo" in the above example), it'll have a closer |
c906108c SS |
3155 | * symbol (the "foo" text symbol for example) and will not |
3156 | * return the trampoline. | |
3157 | * 2. lookup_minimal_symbol_text() will find a real text symbol | |
3158 | * corresponding to the trampoline, and whose address will | |
c378eb4e | 3159 | * be different than the trampoline address. I put in a sanity |
c906108c SS |
3160 | * check for the address being the same, to avoid an |
3161 | * infinite recursion. | |
3162 | */ | |
c5aa993b | 3163 | msymbol = lookup_minimal_symbol_by_pc (pc); |
7cbd4a93 TT |
3164 | if (msymbol.minsym != NULL) |
3165 | if (MSYMBOL_TYPE (msymbol.minsym) == mst_solib_trampoline) | |
c5aa993b | 3166 | { |
77e371c0 | 3167 | struct bound_minimal_symbol mfunsym |
c9d95fa3 | 3168 | = lookup_minimal_symbol_text (msymbol.minsym->linkage_name (), |
77e371c0 TT |
3169 | NULL); |
3170 | ||
3171 | if (mfunsym.minsym == NULL) | |
c5aa993b JM |
3172 | /* I eliminated this warning since it is coming out |
3173 | * in the following situation: | |
3174 | * gdb shmain // test program with shared libraries | |
3175 | * (gdb) break shr1 // function in shared lib | |
3176 | * Warning: In stub for ... | |
9af17804 | 3177 | * In the above situation, the shared lib is not loaded yet, |
c5aa993b JM |
3178 | * so of course we can't find the real func/line info, |
3179 | * but the "break" still works, and the warning is annoying. | |
c378eb4e | 3180 | * So I commented out the warning. RT */ |
3e43a32a | 3181 | /* warning ("In stub for %s; unable to find real function/line info", |
987012b8 | 3182 | msymbol->linkage_name ()); */ |
c378eb4e | 3183 | ; |
c5aa993b | 3184 | /* fall through */ |
77e371c0 TT |
3185 | else if (BMSYMBOL_VALUE_ADDRESS (mfunsym) |
3186 | == BMSYMBOL_VALUE_ADDRESS (msymbol)) | |
c5aa993b | 3187 | /* Avoid infinite recursion */ |
c378eb4e | 3188 | /* See above comment about why warning is commented out. */ |
3e43a32a | 3189 | /* warning ("In stub for %s; unable to find real function/line info", |
987012b8 | 3190 | msymbol->linkage_name ()); */ |
c378eb4e | 3191 | ; |
c5aa993b JM |
3192 | /* fall through */ |
3193 | else | |
dd69bf7a KB |
3194 | { |
3195 | /* Detect an obvious case of infinite recursion. If this | |
3196 | should occur, we'd like to know about it, so error out, | |
3197 | fatally. */ | |
3198 | if (BMSYMBOL_VALUE_ADDRESS (mfunsym) == pc) | |
3199 | internal_error (__FILE__, __LINE__, | |
dda83cd7 | 3200 | _("Infinite recursion detected in find_pc_sect_line;" |
dd69bf7a KB |
3201 | "please file a bug report")); |
3202 | ||
3203 | return find_pc_line (BMSYMBOL_VALUE_ADDRESS (mfunsym), 0); | |
3204 | } | |
c5aa993b | 3205 | } |
c906108c | 3206 | |
51abb421 PA |
3207 | symtab_and_line val; |
3208 | val.pspace = current_program_space; | |
c906108c | 3209 | |
43f3e411 DE |
3210 | cust = find_pc_sect_compunit_symtab (pc, section); |
3211 | if (cust == NULL) | |
c906108c | 3212 | { |
c378eb4e | 3213 | /* If no symbol information, return previous pc. */ |
c906108c SS |
3214 | if (notcurrent) |
3215 | pc++; | |
3216 | val.pc = pc; | |
3217 | return val; | |
3218 | } | |
3219 | ||
43f3e411 | 3220 | bv = COMPUNIT_BLOCKVECTOR (cust); |
c906108c SS |
3221 | |
3222 | /* Look at all the symtabs that share this blockvector. | |
3223 | They all have the same apriori range, that we found was right; | |
3224 | but they have different line tables. */ | |
3225 | ||
5accd1a0 | 3226 | for (symtab *iter_s : compunit_filetabs (cust)) |
c906108c SS |
3227 | { |
3228 | /* Find the best line in this symtab. */ | |
43f3e411 | 3229 | l = SYMTAB_LINETABLE (iter_s); |
c906108c | 3230 | if (!l) |
c5aa993b | 3231 | continue; |
c906108c SS |
3232 | len = l->nitems; |
3233 | if (len <= 0) | |
3234 | { | |
3235 | /* I think len can be zero if the symtab lacks line numbers | |
3236 | (e.g. gcc -g1). (Either that or the LINETABLE is NULL; | |
3237 | I'm not sure which, and maybe it depends on the symbol | |
3238 | reader). */ | |
3239 | continue; | |
3240 | } | |
3241 | ||
3242 | prev = NULL; | |
c378eb4e | 3243 | item = l->item; /* Get first line info. */ |
c906108c SS |
3244 | |
3245 | /* Is this file's first line closer than the first lines of other files? | |
dda83cd7 | 3246 | If so, record this file, and its first line, as best alternate. */ |
c906108c | 3247 | if (item->pc > pc && (!alt || item->pc < alt->pc)) |
c656bca5 | 3248 | alt = item; |
c906108c | 3249 | |
b926417a | 3250 | auto pc_compare = [](const CORE_ADDR & comp_pc, |
7cbe16e9 SR |
3251 | const struct linetable_entry & lhs)->bool |
3252 | { | |
b926417a | 3253 | return comp_pc < lhs.pc; |
7cbe16e9 | 3254 | }; |
c906108c | 3255 | |
7cbe16e9 SR |
3256 | struct linetable_entry *first = item; |
3257 | struct linetable_entry *last = item + len; | |
3258 | item = std::upper_bound (first, last, pc, pc_compare); | |
3259 | if (item != first) | |
d8cc8af6 | 3260 | prev = item - 1; /* Found a matching item. */ |
c906108c SS |
3261 | |
3262 | /* At this point, prev points at the line whose start addr is <= pc, and | |
dda83cd7 SM |
3263 | item points at the next line. If we ran off the end of the linetable |
3264 | (pc >= start of the last line), then prev == item. If pc < start of | |
3265 | the first line, prev will not be set. */ | |
c906108c SS |
3266 | |
3267 | /* Is this file's best line closer than the best in the other files? | |
dda83cd7 SM |
3268 | If so, record this file, and its best line, as best so far. Don't |
3269 | save prev if it represents the end of a function (i.e. line number | |
3270 | 0) instead of a real line. */ | |
c906108c | 3271 | |
083ae935 | 3272 | if (prev && prev->line && (!best || prev->pc > best->pc)) |
c906108c SS |
3273 | { |
3274 | best = prev; | |
43f3e411 | 3275 | best_symtab = iter_s; |
25d53da1 | 3276 | |
8c95582d AB |
3277 | /* If during the binary search we land on a non-statement entry, |
3278 | scan backward through entries at the same address to see if | |
3279 | there is an entry marked as is-statement. In theory this | |
3280 | duplication should have been removed from the line table | |
3281 | during construction, this is just a double check. If the line | |
3282 | table has had the duplication removed then this should be | |
3283 | pretty cheap. */ | |
3284 | if (!best->is_stmt) | |
3285 | { | |
3286 | struct linetable_entry *tmp = best; | |
3287 | while (tmp > first && (tmp - 1)->pc == tmp->pc | |
3288 | && (tmp - 1)->line != 0 && !tmp->is_stmt) | |
3289 | --tmp; | |
3290 | if (tmp->is_stmt) | |
3291 | best = tmp; | |
3292 | } | |
3293 | ||
25d53da1 KB |
3294 | /* Discard BEST_END if it's before the PC of the current BEST. */ |
3295 | if (best_end <= best->pc) | |
3296 | best_end = 0; | |
c906108c | 3297 | } |
25d53da1 KB |
3298 | |
3299 | /* If another line (denoted by ITEM) is in the linetable and its | |
7cbe16e9 | 3300 | PC is after BEST's PC, but before the current BEST_END, then |
25d53da1 | 3301 | use ITEM's PC as the new best_end. */ |
4ee89e90 | 3302 | if (best && item < last && item->pc > best->pc |
7cbe16e9 | 3303 | && (best_end == 0 || best_end > item->pc)) |
25d53da1 | 3304 | best_end = item->pc; |
c906108c SS |
3305 | } |
3306 | ||
3307 | if (!best_symtab) | |
3308 | { | |
e86e87f7 DJ |
3309 | /* If we didn't find any line number info, just return zeros. |
3310 | We used to return alt->line - 1 here, but that could be | |
3311 | anywhere; if we don't have line number info for this PC, | |
3312 | don't make some up. */ | |
3313 | val.pc = pc; | |
c906108c | 3314 | } |
e8717518 FF |
3315 | else if (best->line == 0) |
3316 | { | |
3317 | /* If our best fit is in a range of PC's for which no line | |
3318 | number info is available (line number is zero) then we didn't | |
c378eb4e | 3319 | find any valid line information. */ |
e8717518 FF |
3320 | val.pc = pc; |
3321 | } | |
c906108c SS |
3322 | else |
3323 | { | |
8c95582d | 3324 | val.is_stmt = best->is_stmt; |
c906108c SS |
3325 | val.symtab = best_symtab; |
3326 | val.line = best->line; | |
3327 | val.pc = best->pc; | |
3328 | if (best_end && (!alt || best_end < alt->pc)) | |
3329 | val.end = best_end; | |
3330 | else if (alt) | |
3331 | val.end = alt->pc; | |
3332 | else | |
3333 | val.end = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); | |
3334 | } | |
3335 | val.section = section; | |
3336 | return val; | |
3337 | } | |
3338 | ||
c378eb4e | 3339 | /* Backward compatibility (no section). */ |
c906108c SS |
3340 | |
3341 | struct symtab_and_line | |
fba45db2 | 3342 | find_pc_line (CORE_ADDR pc, int notcurrent) |
c906108c | 3343 | { |
714835d5 | 3344 | struct obj_section *section; |
c906108c SS |
3345 | |
3346 | section = find_pc_overlay (pc); | |
31a8f60f AB |
3347 | if (!pc_in_unmapped_range (pc, section)) |
3348 | return find_pc_sect_line (pc, section, notcurrent); | |
3349 | ||
3350 | /* If the original PC was an unmapped address then we translate this to a | |
3351 | mapped address in order to lookup the sal. However, as the user | |
3352 | passed us an unmapped address it makes more sense to return a result | |
3353 | that has the pc and end fields translated to unmapped addresses. */ | |
3354 | pc = overlay_mapped_address (pc, section); | |
3355 | symtab_and_line sal = find_pc_sect_line (pc, section, notcurrent); | |
3356 | sal.pc = overlay_unmapped_address (sal.pc, section); | |
3357 | sal.end = overlay_unmapped_address (sal.end, section); | |
3358 | return sal; | |
c906108c | 3359 | } |
34248c3a DE |
3360 | |
3361 | /* See symtab.h. */ | |
3362 | ||
3363 | struct symtab * | |
3364 | find_pc_line_symtab (CORE_ADDR pc) | |
3365 | { | |
3366 | struct symtab_and_line sal; | |
3367 | ||
3368 | /* This always passes zero for NOTCURRENT to find_pc_line. | |
3369 | There are currently no callers that ever pass non-zero. */ | |
3370 | sal = find_pc_line (pc, 0); | |
3371 | return sal.symtab; | |
3372 | } | |
c906108c | 3373 | \f |
c906108c SS |
3374 | /* Find line number LINE in any symtab whose name is the same as |
3375 | SYMTAB. | |
3376 | ||
3377 | If found, return the symtab that contains the linetable in which it was | |
3378 | found, set *INDEX to the index in the linetable of the best entry | |
ececd218 | 3379 | found, and set *EXACT_MATCH to true if the value returned is an |
c906108c SS |
3380 | exact match. |
3381 | ||
3382 | If not found, return NULL. */ | |
3383 | ||
50641945 | 3384 | struct symtab * |
5accd1a0 | 3385 | find_line_symtab (struct symtab *sym_tab, int line, |
ececd218 | 3386 | int *index, bool *exact_match) |
c906108c | 3387 | { |
6f43c46f | 3388 | int exact = 0; /* Initialized here to avoid a compiler warning. */ |
c906108c SS |
3389 | |
3390 | /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE | |
3391 | so far seen. */ | |
3392 | ||
3393 | int best_index; | |
3394 | struct linetable *best_linetable; | |
3395 | struct symtab *best_symtab; | |
3396 | ||
3397 | /* First try looking it up in the given symtab. */ | |
5accd1a0 TT |
3398 | best_linetable = SYMTAB_LINETABLE (sym_tab); |
3399 | best_symtab = sym_tab; | |
f8eba3c6 | 3400 | best_index = find_line_common (best_linetable, line, &exact, 0); |
c906108c SS |
3401 | if (best_index < 0 || !exact) |
3402 | { | |
3403 | /* Didn't find an exact match. So we better keep looking for | |
dda83cd7 SM |
3404 | another symtab with the same name. In the case of xcoff, |
3405 | multiple csects for one source file (produced by IBM's FORTRAN | |
3406 | compiler) produce multiple symtabs (this is unavoidable | |
3407 | assuming csects can be at arbitrary places in memory and that | |
3408 | the GLOBAL_BLOCK of a symtab has a begin and end address). */ | |
c906108c SS |
3409 | |
3410 | /* BEST is the smallest linenumber > LINE so far seen, | |
dda83cd7 SM |
3411 | or 0 if none has been seen so far. |
3412 | BEST_INDEX and BEST_LINETABLE identify the item for it. */ | |
c906108c SS |
3413 | int best; |
3414 | ||
c906108c SS |
3415 | if (best_index >= 0) |
3416 | best = best_linetable->item[best_index].line; | |
3417 | else | |
3418 | best = 0; | |
3419 | ||
2030c079 | 3420 | for (objfile *objfile : current_program_space->objfiles ()) |
4d080b46 | 3421 | objfile->expand_symtabs_with_fullname (symtab_to_fullname (sym_tab)); |
51432cca | 3422 | |
2030c079 | 3423 | for (objfile *objfile : current_program_space->objfiles ()) |
8b31193a | 3424 | { |
b669c953 | 3425 | for (compunit_symtab *cu : objfile->compunits ()) |
8b31193a TT |
3426 | { |
3427 | for (symtab *s : compunit_filetabs (cu)) | |
3428 | { | |
3429 | struct linetable *l; | |
3430 | int ind; | |
3431 | ||
3432 | if (FILENAME_CMP (sym_tab->filename, s->filename) != 0) | |
3433 | continue; | |
3434 | if (FILENAME_CMP (symtab_to_fullname (sym_tab), | |
3435 | symtab_to_fullname (s)) != 0) | |
3436 | continue; | |
3437 | l = SYMTAB_LINETABLE (s); | |
3438 | ind = find_line_common (l, line, &exact, 0); | |
3439 | if (ind >= 0) | |
3440 | { | |
3441 | if (exact) | |
3442 | { | |
3443 | best_index = ind; | |
3444 | best_linetable = l; | |
3445 | best_symtab = s; | |
3446 | goto done; | |
3447 | } | |
3448 | if (best == 0 || l->item[ind].line < best) | |
3449 | { | |
3450 | best = l->item[ind].line; | |
3451 | best_index = ind; | |
3452 | best_linetable = l; | |
3453 | best_symtab = s; | |
3454 | } | |
3455 | } | |
3456 | } | |
3457 | } | |
3458 | } | |
c906108c | 3459 | } |
c5aa993b | 3460 | done: |
c906108c SS |
3461 | if (best_index < 0) |
3462 | return NULL; | |
3463 | ||
3464 | if (index) | |
3465 | *index = best_index; | |
3466 | if (exact_match) | |
ececd218 | 3467 | *exact_match = (exact != 0); |
c906108c SS |
3468 | |
3469 | return best_symtab; | |
3470 | } | |
f8eba3c6 TT |
3471 | |
3472 | /* Given SYMTAB, returns all the PCs function in the symtab that | |
67d89901 TT |
3473 | exactly match LINE. Returns an empty vector if there are no exact |
3474 | matches, but updates BEST_ITEM in this case. */ | |
f8eba3c6 | 3475 | |
67d89901 | 3476 | std::vector<CORE_ADDR> |
f8eba3c6 TT |
3477 | find_pcs_for_symtab_line (struct symtab *symtab, int line, |
3478 | struct linetable_entry **best_item) | |
3479 | { | |
c656bca5 | 3480 | int start = 0; |
67d89901 | 3481 | std::vector<CORE_ADDR> result; |
f8eba3c6 TT |
3482 | |
3483 | /* First, collect all the PCs that are at this line. */ | |
3484 | while (1) | |
3485 | { | |
3486 | int was_exact; | |
3487 | int idx; | |
3488 | ||
8435453b DE |
3489 | idx = find_line_common (SYMTAB_LINETABLE (symtab), line, &was_exact, |
3490 | start); | |
f8eba3c6 TT |
3491 | if (idx < 0) |
3492 | break; | |
3493 | ||
3494 | if (!was_exact) | |
3495 | { | |
8435453b | 3496 | struct linetable_entry *item = &SYMTAB_LINETABLE (symtab)->item[idx]; |
f8eba3c6 | 3497 | |
8c95582d AB |
3498 | if (*best_item == NULL |
3499 | || (item->line < (*best_item)->line && item->is_stmt)) | |
f8eba3c6 TT |
3500 | *best_item = item; |
3501 | ||
3502 | break; | |
3503 | } | |
3504 | ||
67d89901 | 3505 | result.push_back (SYMTAB_LINETABLE (symtab)->item[idx].pc); |
f8eba3c6 TT |
3506 | start = idx + 1; |
3507 | } | |
3508 | ||
3509 | return result; | |
3510 | } | |
3511 | ||
c906108c SS |
3512 | \f |
3513 | /* Set the PC value for a given source file and line number and return true. | |
ececd218 | 3514 | Returns false for invalid line number (and sets the PC to 0). |
c906108c SS |
3515 | The source file is specified with a struct symtab. */ |
3516 | ||
ececd218 | 3517 | bool |
fba45db2 | 3518 | find_line_pc (struct symtab *symtab, int line, CORE_ADDR *pc) |
c906108c SS |
3519 | { |
3520 | struct linetable *l; | |
3521 | int ind; | |
3522 | ||
3523 | *pc = 0; | |
3524 | if (symtab == 0) | |
ececd218 | 3525 | return false; |
c906108c SS |
3526 | |
3527 | symtab = find_line_symtab (symtab, line, &ind, NULL); | |
3528 | if (symtab != NULL) | |
3529 | { | |
8435453b | 3530 | l = SYMTAB_LINETABLE (symtab); |
c906108c | 3531 | *pc = l->item[ind].pc; |
ececd218 | 3532 | return true; |
c906108c SS |
3533 | } |
3534 | else | |
ececd218 | 3535 | return false; |
c906108c SS |
3536 | } |
3537 | ||
3538 | /* Find the range of pc values in a line. | |
3539 | Store the starting pc of the line into *STARTPTR | |
3540 | and the ending pc (start of next line) into *ENDPTR. | |
ececd218 CB |
3541 | Returns true to indicate success. |
3542 | Returns false if could not find the specified line. */ | |
c906108c | 3543 | |
ececd218 | 3544 | bool |
fba45db2 KB |
3545 | find_line_pc_range (struct symtab_and_line sal, CORE_ADDR *startptr, |
3546 | CORE_ADDR *endptr) | |
c906108c SS |
3547 | { |
3548 | CORE_ADDR startaddr; | |
3549 | struct symtab_and_line found_sal; | |
3550 | ||
3551 | startaddr = sal.pc; | |
c5aa993b | 3552 | if (startaddr == 0 && !find_line_pc (sal.symtab, sal.line, &startaddr)) |
ececd218 | 3553 | return false; |
c906108c SS |
3554 | |
3555 | /* This whole function is based on address. For example, if line 10 has | |
3556 | two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then | |
3557 | "info line *0x123" should say the line goes from 0x100 to 0x200 | |
3558 | and "info line *0x355" should say the line goes from 0x300 to 0x400. | |
3559 | This also insures that we never give a range like "starts at 0x134 | |
3560 | and ends at 0x12c". */ | |
3561 | ||
3562 | found_sal = find_pc_sect_line (startaddr, sal.section, 0); | |
3563 | if (found_sal.line != sal.line) | |
3564 | { | |
3565 | /* The specified line (sal) has zero bytes. */ | |
3566 | *startptr = found_sal.pc; | |
3567 | *endptr = found_sal.pc; | |
3568 | } | |
3569 | else | |
3570 | { | |
3571 | *startptr = found_sal.pc; | |
3572 | *endptr = found_sal.end; | |
3573 | } | |
ececd218 | 3574 | return true; |
c906108c SS |
3575 | } |
3576 | ||
3577 | /* Given a line table and a line number, return the index into the line | |
3578 | table for the pc of the nearest line whose number is >= the specified one. | |
3579 | Return -1 if none is found. The value is >= 0 if it is an index. | |
f8eba3c6 | 3580 | START is the index at which to start searching the line table. |
c906108c SS |
3581 | |
3582 | Set *EXACT_MATCH nonzero if the value returned is an exact match. */ | |
3583 | ||
3584 | static int | |
aa1ee363 | 3585 | find_line_common (struct linetable *l, int lineno, |
f8eba3c6 | 3586 | int *exact_match, int start) |
c906108c | 3587 | { |
52f0bd74 AC |
3588 | int i; |
3589 | int len; | |
c906108c SS |
3590 | |
3591 | /* BEST is the smallest linenumber > LINENO so far seen, | |
3592 | or 0 if none has been seen so far. | |
3593 | BEST_INDEX identifies the item for it. */ | |
3594 | ||
3595 | int best_index = -1; | |
3596 | int best = 0; | |
3597 | ||
b7589f7d DJ |
3598 | *exact_match = 0; |
3599 | ||
c906108c SS |
3600 | if (lineno <= 0) |
3601 | return -1; | |
3602 | if (l == 0) | |
3603 | return -1; | |
3604 | ||
3605 | len = l->nitems; | |
f8eba3c6 | 3606 | for (i = start; i < len; i++) |
c906108c | 3607 | { |
aa1ee363 | 3608 | struct linetable_entry *item = &(l->item[i]); |
c906108c | 3609 | |
8c95582d AB |
3610 | /* Ignore non-statements. */ |
3611 | if (!item->is_stmt) | |
3612 | continue; | |
3613 | ||
c906108c SS |
3614 | if (item->line == lineno) |
3615 | { | |
3616 | /* Return the first (lowest address) entry which matches. */ | |
3617 | *exact_match = 1; | |
3618 | return i; | |
3619 | } | |
3620 | ||
3621 | if (item->line > lineno && (best == 0 || item->line < best)) | |
3622 | { | |
3623 | best = item->line; | |
3624 | best_index = i; | |
3625 | } | |
3626 | } | |
3627 | ||
3628 | /* If we got here, we didn't get an exact match. */ | |
c906108c SS |
3629 | return best_index; |
3630 | } | |
3631 | ||
ececd218 | 3632 | bool |
fba45db2 | 3633 | find_pc_line_pc_range (CORE_ADDR pc, CORE_ADDR *startptr, CORE_ADDR *endptr) |
c906108c SS |
3634 | { |
3635 | struct symtab_and_line sal; | |
433759f7 | 3636 | |
c906108c SS |
3637 | sal = find_pc_line (pc, 0); |
3638 | *startptr = sal.pc; | |
3639 | *endptr = sal.end; | |
3640 | return sal.symtab != 0; | |
3641 | } | |
3642 | ||
cd2bb709 PA |
3643 | /* Helper for find_function_start_sal. Does most of the work, except |
3644 | setting the sal's symbol. */ | |
aab2f208 | 3645 | |
cd2bb709 PA |
3646 | static symtab_and_line |
3647 | find_function_start_sal_1 (CORE_ADDR func_addr, obj_section *section, | |
3648 | bool funfirstline) | |
aab2f208 | 3649 | { |
42ddae10 | 3650 | symtab_and_line sal = find_pc_sect_line (func_addr, section, 0); |
aab2f208 | 3651 | |
6e22494e JK |
3652 | if (funfirstline && sal.symtab != NULL |
3653 | && (COMPUNIT_LOCATIONS_VALID (SYMTAB_COMPUNIT (sal.symtab)) | |
3654 | || SYMTAB_LANGUAGE (sal.symtab) == language_asm)) | |
3655 | { | |
08feed99 | 3656 | struct gdbarch *gdbarch = SYMTAB_OBJFILE (sal.symtab)->arch (); |
141c5cc4 | 3657 | |
42ddae10 | 3658 | sal.pc = func_addr; |
141c5cc4 JK |
3659 | if (gdbarch_skip_entrypoint_p (gdbarch)) |
3660 | sal.pc = gdbarch_skip_entrypoint (gdbarch, sal.pc); | |
6e22494e JK |
3661 | return sal; |
3662 | } | |
3663 | ||
aab2f208 | 3664 | /* We always should have a line for the function start address. |
42ddae10 | 3665 | If we don't, something is odd. Create a plain SAL referring |
aab2f208 DE |
3666 | just the PC and hope that skip_prologue_sal (if requested) |
3667 | can find a line number for after the prologue. */ | |
42ddae10 | 3668 | if (sal.pc < func_addr) |
aab2f208 | 3669 | { |
51abb421 | 3670 | sal = {}; |
aab2f208 | 3671 | sal.pspace = current_program_space; |
42ddae10 | 3672 | sal.pc = func_addr; |
08be3fe3 | 3673 | sal.section = section; |
aab2f208 DE |
3674 | } |
3675 | ||
3676 | if (funfirstline) | |
3677 | skip_prologue_sal (&sal); | |
3678 | ||
3679 | return sal; | |
3680 | } | |
3681 | ||
42ddae10 PA |
3682 | /* See symtab.h. */ |
3683 | ||
cd2bb709 PA |
3684 | symtab_and_line |
3685 | find_function_start_sal (CORE_ADDR func_addr, obj_section *section, | |
3686 | bool funfirstline) | |
3687 | { | |
3688 | symtab_and_line sal | |
3689 | = find_function_start_sal_1 (func_addr, section, funfirstline); | |
3690 | ||
3691 | /* find_function_start_sal_1 does a linetable search, so it finds | |
3692 | the symtab and linenumber, but not a symbol. Fill in the | |
3693 | function symbol too. */ | |
3694 | sal.symbol = find_pc_sect_containing_function (sal.pc, sal.section); | |
3695 | ||
3696 | return sal; | |
3697 | } | |
3698 | ||
3699 | /* See symtab.h. */ | |
3700 | ||
42ddae10 PA |
3701 | symtab_and_line |
3702 | find_function_start_sal (symbol *sym, bool funfirstline) | |
3703 | { | |
3704 | fixup_symbol_section (sym, NULL); | |
3705 | symtab_and_line sal | |
2b1ffcfd | 3706 | = find_function_start_sal_1 (BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (sym)), |
ebbc3a7d | 3707 | sym->obj_section (symbol_objfile (sym)), |
cd2bb709 | 3708 | funfirstline); |
42ddae10 PA |
3709 | sal.symbol = sym; |
3710 | return sal; | |
3711 | } | |
3712 | ||
3713 | ||
8c7a1ee8 EZ |
3714 | /* Given a function start address FUNC_ADDR and SYMTAB, find the first |
3715 | address for that function that has an entry in SYMTAB's line info | |
3716 | table. If such an entry cannot be found, return FUNC_ADDR | |
3717 | unaltered. */ | |
eca864fe | 3718 | |
70221824 | 3719 | static CORE_ADDR |
8c7a1ee8 EZ |
3720 | skip_prologue_using_lineinfo (CORE_ADDR func_addr, struct symtab *symtab) |
3721 | { | |
3722 | CORE_ADDR func_start, func_end; | |
3723 | struct linetable *l; | |
952a6d41 | 3724 | int i; |
8c7a1ee8 EZ |
3725 | |
3726 | /* Give up if this symbol has no lineinfo table. */ | |
8435453b | 3727 | l = SYMTAB_LINETABLE (symtab); |
8c7a1ee8 EZ |
3728 | if (l == NULL) |
3729 | return func_addr; | |
3730 | ||
3731 | /* Get the range for the function's PC values, or give up if we | |
3732 | cannot, for some reason. */ | |
3733 | if (!find_pc_partial_function (func_addr, NULL, &func_start, &func_end)) | |
3734 | return func_addr; | |
3735 | ||
3736 | /* Linetable entries are ordered by PC values, see the commentary in | |
3737 | symtab.h where `struct linetable' is defined. Thus, the first | |
3738 | entry whose PC is in the range [FUNC_START..FUNC_END[ is the | |
3739 | address we are looking for. */ | |
3740 | for (i = 0; i < l->nitems; i++) | |
3741 | { | |
3742 | struct linetable_entry *item = &(l->item[i]); | |
3743 | ||
3744 | /* Don't use line numbers of zero, they mark special entries in | |
3745 | the table. See the commentary on symtab.h before the | |
3746 | definition of struct linetable. */ | |
3747 | if (item->line > 0 && func_start <= item->pc && item->pc < func_end) | |
3748 | return item->pc; | |
3749 | } | |
3750 | ||
3751 | return func_addr; | |
3752 | } | |
3753 | ||
059acae7 UW |
3754 | /* Adjust SAL to the first instruction past the function prologue. |
3755 | If the PC was explicitly specified, the SAL is not changed. | |
5b0e2db4 AB |
3756 | If the line number was explicitly specified then the SAL can still be |
3757 | updated, unless the language for SAL is assembler, in which case the SAL | |
3758 | will be left unchanged. | |
3759 | If SAL is already past the prologue, then do nothing. */ | |
eca864fe | 3760 | |
059acae7 UW |
3761 | void |
3762 | skip_prologue_sal (struct symtab_and_line *sal) | |
3763 | { | |
3764 | struct symbol *sym; | |
3765 | struct symtab_and_line start_sal; | |
8be455d7 | 3766 | CORE_ADDR pc, saved_pc; |
059acae7 UW |
3767 | struct obj_section *section; |
3768 | const char *name; | |
3769 | struct objfile *objfile; | |
3770 | struct gdbarch *gdbarch; | |
3977b71f | 3771 | const struct block *b, *function_block; |
8be455d7 | 3772 | int force_skip, skip; |
c906108c | 3773 | |
a4b411d6 | 3774 | /* Do not change the SAL if PC was specified explicitly. */ |
059acae7 UW |
3775 | if (sal->explicit_pc) |
3776 | return; | |
6c95b8df | 3777 | |
5b0e2db4 AB |
3778 | /* In assembly code, if the user asks for a specific line then we should |
3779 | not adjust the SAL. The user already has instruction level | |
3780 | visibility in this case, so selecting a line other than one requested | |
3781 | is likely to be the wrong choice. */ | |
3782 | if (sal->symtab != nullptr | |
3783 | && sal->explicit_line | |
3784 | && SYMTAB_LANGUAGE (sal->symtab) == language_asm) | |
3785 | return; | |
3786 | ||
5ed8105e PA |
3787 | scoped_restore_current_pspace_and_thread restore_pspace_thread; |
3788 | ||
059acae7 | 3789 | switch_to_program_space_and_thread (sal->pspace); |
6c95b8df | 3790 | |
059acae7 UW |
3791 | sym = find_pc_sect_function (sal->pc, sal->section); |
3792 | if (sym != NULL) | |
bccdca4a | 3793 | { |
059acae7 UW |
3794 | fixup_symbol_section (sym, NULL); |
3795 | ||
08be3fe3 | 3796 | objfile = symbol_objfile (sym); |
2b1ffcfd | 3797 | pc = BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (sym)); |
ebbc3a7d | 3798 | section = sym->obj_section (objfile); |
987012b8 | 3799 | name = sym->linkage_name (); |
c906108c | 3800 | } |
059acae7 UW |
3801 | else |
3802 | { | |
7c7b6655 | 3803 | struct bound_minimal_symbol msymbol |
dda83cd7 | 3804 | = lookup_minimal_symbol_by_pc_section (sal->pc, sal->section); |
433759f7 | 3805 | |
7c7b6655 | 3806 | if (msymbol.minsym == NULL) |
5ed8105e | 3807 | return; |
059acae7 | 3808 | |
7c7b6655 | 3809 | objfile = msymbol.objfile; |
77e371c0 | 3810 | pc = BMSYMBOL_VALUE_ADDRESS (msymbol); |
ebbc3a7d | 3811 | section = msymbol.minsym->obj_section (objfile); |
c9d95fa3 | 3812 | name = msymbol.minsym->linkage_name (); |
059acae7 UW |
3813 | } |
3814 | ||
08feed99 | 3815 | gdbarch = objfile->arch (); |
059acae7 | 3816 | |
8be455d7 JK |
3817 | /* Process the prologue in two passes. In the first pass try to skip the |
3818 | prologue (SKIP is true) and verify there is a real need for it (indicated | |
3819 | by FORCE_SKIP). If no such reason was found run a second pass where the | |
3820 | prologue is not skipped (SKIP is false). */ | |
059acae7 | 3821 | |
8be455d7 JK |
3822 | skip = 1; |
3823 | force_skip = 1; | |
059acae7 | 3824 | |
8be455d7 JK |
3825 | /* Be conservative - allow direct PC (without skipping prologue) only if we |
3826 | have proven the CU (Compilation Unit) supports it. sal->SYMTAB does not | |
3827 | have to be set by the caller so we use SYM instead. */ | |
08be3fe3 DE |
3828 | if (sym != NULL |
3829 | && COMPUNIT_LOCATIONS_VALID (SYMTAB_COMPUNIT (symbol_symtab (sym)))) | |
8be455d7 | 3830 | force_skip = 0; |
059acae7 | 3831 | |
8be455d7 JK |
3832 | saved_pc = pc; |
3833 | do | |
c906108c | 3834 | { |
8be455d7 | 3835 | pc = saved_pc; |
4309257c | 3836 | |
8be455d7 JK |
3837 | /* If the function is in an unmapped overlay, use its unmapped LMA address, |
3838 | so that gdbarch_skip_prologue has something unique to work on. */ | |
3839 | if (section_is_overlay (section) && !section_is_mapped (section)) | |
3840 | pc = overlay_unmapped_address (pc, section); | |
3841 | ||
3842 | /* Skip "first line" of function (which is actually its prologue). */ | |
3843 | pc += gdbarch_deprecated_function_start_offset (gdbarch); | |
591a12a1 | 3844 | if (gdbarch_skip_entrypoint_p (gdbarch)) |
dda83cd7 | 3845 | pc = gdbarch_skip_entrypoint (gdbarch, pc); |
8be455d7 | 3846 | if (skip) |
46a62268 | 3847 | pc = gdbarch_skip_prologue_noexcept (gdbarch, pc); |
8be455d7 JK |
3848 | |
3849 | /* For overlays, map pc back into its mapped VMA range. */ | |
3850 | pc = overlay_mapped_address (pc, section); | |
3851 | ||
3852 | /* Calculate line number. */ | |
059acae7 | 3853 | start_sal = find_pc_sect_line (pc, section, 0); |
8be455d7 JK |
3854 | |
3855 | /* Check if gdbarch_skip_prologue left us in mid-line, and the next | |
3856 | line is still part of the same function. */ | |
3857 | if (skip && start_sal.pc != pc | |
2b1ffcfd | 3858 | && (sym ? (BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (sym)) <= start_sal.end |
b1d96efd | 3859 | && start_sal.end < BLOCK_END (SYMBOL_BLOCK_VALUE (sym))) |
7cbd4a93 TT |
3860 | : (lookup_minimal_symbol_by_pc_section (start_sal.end, section).minsym |
3861 | == lookup_minimal_symbol_by_pc_section (pc, section).minsym))) | |
8be455d7 JK |
3862 | { |
3863 | /* First pc of next line */ | |
3864 | pc = start_sal.end; | |
3865 | /* Recalculate the line number (might not be N+1). */ | |
3866 | start_sal = find_pc_sect_line (pc, section, 0); | |
3867 | } | |
3868 | ||
3869 | /* On targets with executable formats that don't have a concept of | |
3870 | constructors (ELF with .init has, PE doesn't), gcc emits a call | |
3871 | to `__main' in `main' between the prologue and before user | |
3872 | code. */ | |
3873 | if (gdbarch_skip_main_prologue_p (gdbarch) | |
7ccffd7c | 3874 | && name && strcmp_iw (name, "main") == 0) |
8be455d7 JK |
3875 | { |
3876 | pc = gdbarch_skip_main_prologue (gdbarch, pc); | |
3877 | /* Recalculate the line number (might not be N+1). */ | |
3878 | start_sal = find_pc_sect_line (pc, section, 0); | |
3879 | force_skip = 1; | |
3880 | } | |
4309257c | 3881 | } |
8be455d7 | 3882 | while (!force_skip && skip--); |
4309257c | 3883 | |
8c7a1ee8 EZ |
3884 | /* If we still don't have a valid source line, try to find the first |
3885 | PC in the lineinfo table that belongs to the same function. This | |
3886 | happens with COFF debug info, which does not seem to have an | |
3887 | entry in lineinfo table for the code after the prologue which has | |
3888 | no direct relation to source. For example, this was found to be | |
3889 | the case with the DJGPP target using "gcc -gcoff" when the | |
3890 | compiler inserted code after the prologue to make sure the stack | |
3891 | is aligned. */ | |
8be455d7 | 3892 | if (!force_skip && sym && start_sal.symtab == NULL) |
8c7a1ee8 | 3893 | { |
08be3fe3 | 3894 | pc = skip_prologue_using_lineinfo (pc, symbol_symtab (sym)); |
8c7a1ee8 | 3895 | /* Recalculate the line number. */ |
059acae7 | 3896 | start_sal = find_pc_sect_line (pc, section, 0); |
8c7a1ee8 EZ |
3897 | } |
3898 | ||
059acae7 UW |
3899 | /* If we're already past the prologue, leave SAL unchanged. Otherwise |
3900 | forward SAL to the end of the prologue. */ | |
3901 | if (sal->pc >= pc) | |
3902 | return; | |
3903 | ||
3904 | sal->pc = pc; | |
3905 | sal->section = section; | |
059acae7 UW |
3906 | sal->symtab = start_sal.symtab; |
3907 | sal->line = start_sal.line; | |
3908 | sal->end = start_sal.end; | |
c906108c | 3909 | |
edb3359d DJ |
3910 | /* Check if we are now inside an inlined function. If we can, |
3911 | use the call site of the function instead. */ | |
059acae7 | 3912 | b = block_for_pc_sect (sal->pc, sal->section); |
edb3359d DJ |
3913 | function_block = NULL; |
3914 | while (b != NULL) | |
3915 | { | |
3916 | if (BLOCK_FUNCTION (b) != NULL && block_inlined_p (b)) | |
3917 | function_block = b; | |
3918 | else if (BLOCK_FUNCTION (b) != NULL) | |
3919 | break; | |
3920 | b = BLOCK_SUPERBLOCK (b); | |
3921 | } | |
3922 | if (function_block != NULL | |
3923 | && SYMBOL_LINE (BLOCK_FUNCTION (function_block)) != 0) | |
3924 | { | |
059acae7 | 3925 | sal->line = SYMBOL_LINE (BLOCK_FUNCTION (function_block)); |
08be3fe3 | 3926 | sal->symtab = symbol_symtab (BLOCK_FUNCTION (function_block)); |
edb3359d | 3927 | } |
c906108c | 3928 | } |
50641945 | 3929 | |
f1f58506 DE |
3930 | /* Given PC at the function's start address, attempt to find the |
3931 | prologue end using SAL information. Return zero if the skip fails. | |
3932 | ||
3933 | A non-optimized prologue traditionally has one SAL for the function | |
3934 | and a second for the function body. A single line function has | |
3935 | them both pointing at the same line. | |
3936 | ||
3937 | An optimized prologue is similar but the prologue may contain | |
3938 | instructions (SALs) from the instruction body. Need to skip those | |
3939 | while not getting into the function body. | |
3940 | ||
3941 | The functions end point and an increasing SAL line are used as | |
3942 | indicators of the prologue's endpoint. | |
3943 | ||
3944 | This code is based on the function refine_prologue_limit | |
3945 | (found in ia64). */ | |
3946 | ||
3947 | CORE_ADDR | |
3948 | skip_prologue_using_sal (struct gdbarch *gdbarch, CORE_ADDR func_addr) | |
3949 | { | |
3950 | struct symtab_and_line prologue_sal; | |
3951 | CORE_ADDR start_pc; | |
3952 | CORE_ADDR end_pc; | |
3953 | const struct block *bl; | |
3954 | ||
3955 | /* Get an initial range for the function. */ | |
3956 | find_pc_partial_function (func_addr, NULL, &start_pc, &end_pc); | |
3957 | start_pc += gdbarch_deprecated_function_start_offset (gdbarch); | |
3958 | ||
3959 | prologue_sal = find_pc_line (start_pc, 0); | |
3960 | if (prologue_sal.line != 0) | |
3961 | { | |
3962 | /* For languages other than assembly, treat two consecutive line | |
3963 | entries at the same address as a zero-instruction prologue. | |
3964 | The GNU assembler emits separate line notes for each instruction | |
3965 | in a multi-instruction macro, but compilers generally will not | |
3966 | do this. */ | |
3967 | if (prologue_sal.symtab->language != language_asm) | |
3968 | { | |
8435453b | 3969 | struct linetable *linetable = SYMTAB_LINETABLE (prologue_sal.symtab); |
f1f58506 DE |
3970 | int idx = 0; |
3971 | ||
3972 | /* Skip any earlier lines, and any end-of-sequence marker | |
3973 | from a previous function. */ | |
3974 | while (linetable->item[idx].pc != prologue_sal.pc | |
3975 | || linetable->item[idx].line == 0) | |
3976 | idx++; | |
3977 | ||
3978 | if (idx+1 < linetable->nitems | |
3979 | && linetable->item[idx+1].line != 0 | |
3980 | && linetable->item[idx+1].pc == start_pc) | |
3981 | return start_pc; | |
3982 | } | |
3983 | ||
3984 | /* If there is only one sal that covers the entire function, | |
3985 | then it is probably a single line function, like | |
3986 | "foo(){}". */ | |
3987 | if (prologue_sal.end >= end_pc) | |
3988 | return 0; | |
3989 | ||
3990 | while (prologue_sal.end < end_pc) | |
3991 | { | |
3992 | struct symtab_and_line sal; | |
3993 | ||
3994 | sal = find_pc_line (prologue_sal.end, 0); | |
3995 | if (sal.line == 0) | |
3996 | break; | |
3997 | /* Assume that a consecutive SAL for the same (or larger) | |
3998 | line mark the prologue -> body transition. */ | |
3999 | if (sal.line >= prologue_sal.line) | |
4000 | break; | |
4001 | /* Likewise if we are in a different symtab altogether | |
4002 | (e.g. within a file included via #include). */ | |
4003 | if (sal.symtab != prologue_sal.symtab) | |
4004 | break; | |
4005 | ||
4006 | /* The line number is smaller. Check that it's from the | |
4007 | same function, not something inlined. If it's inlined, | |
4008 | then there is no point comparing the line numbers. */ | |
4009 | bl = block_for_pc (prologue_sal.end); | |
4010 | while (bl) | |
4011 | { | |
4012 | if (block_inlined_p (bl)) | |
4013 | break; | |
4014 | if (BLOCK_FUNCTION (bl)) | |
4015 | { | |
4016 | bl = NULL; | |
4017 | break; | |
4018 | } | |
4019 | bl = BLOCK_SUPERBLOCK (bl); | |
4020 | } | |
4021 | if (bl != NULL) | |
4022 | break; | |
4023 | ||
4024 | /* The case in which compiler's optimizer/scheduler has | |
4025 | moved instructions into the prologue. We look ahead in | |
4026 | the function looking for address ranges whose | |
4027 | corresponding line number is less the first one that we | |
4028 | found for the function. This is more conservative then | |
4029 | refine_prologue_limit which scans a large number of SALs | |
4030 | looking for any in the prologue. */ | |
4031 | prologue_sal = sal; | |
4032 | } | |
4033 | } | |
4034 | ||
4035 | if (prologue_sal.end < end_pc) | |
4036 | /* Return the end of this line, or zero if we could not find a | |
4037 | line. */ | |
4038 | return prologue_sal.end; | |
4039 | else | |
4040 | /* Don't return END_PC, which is past the end of the function. */ | |
4041 | return prologue_sal.pc; | |
4042 | } | |
bf223d3e PA |
4043 | |
4044 | /* See symtab.h. */ | |
4045 | ||
4046 | symbol * | |
4047 | find_function_alias_target (bound_minimal_symbol msymbol) | |
4048 | { | |
4024cf2b PA |
4049 | CORE_ADDR func_addr; |
4050 | if (!msymbol_is_function (msymbol.objfile, msymbol.minsym, &func_addr)) | |
bf223d3e PA |
4051 | return NULL; |
4052 | ||
4024cf2b | 4053 | symbol *sym = find_pc_function (func_addr); |
bf223d3e PA |
4054 | if (sym != NULL |
4055 | && SYMBOL_CLASS (sym) == LOC_BLOCK | |
2b1ffcfd | 4056 | && BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (sym)) == func_addr) |
bf223d3e PA |
4057 | return sym; |
4058 | ||
4059 | return NULL; | |
4060 | } | |
4061 | ||
f1f58506 | 4062 | \f |
c906108c SS |
4063 | /* If P is of the form "operator[ \t]+..." where `...' is |
4064 | some legitimate operator text, return a pointer to the | |
4065 | beginning of the substring of the operator text. | |
4066 | Otherwise, return "". */ | |
eca864fe | 4067 | |
96142726 TT |
4068 | static const char * |
4069 | operator_chars (const char *p, const char **end) | |
c906108c SS |
4070 | { |
4071 | *end = ""; | |
8090b426 | 4072 | if (!startswith (p, CP_OPERATOR_STR)) |
c906108c | 4073 | return *end; |
8090b426 | 4074 | p += CP_OPERATOR_LEN; |
c906108c SS |
4075 | |
4076 | /* Don't get faked out by `operator' being part of a longer | |
4077 | identifier. */ | |
c5aa993b | 4078 | if (isalpha (*p) || *p == '_' || *p == '$' || *p == '\0') |
c906108c SS |
4079 | return *end; |
4080 | ||
4081 | /* Allow some whitespace between `operator' and the operator symbol. */ | |
4082 | while (*p == ' ' || *p == '\t') | |
4083 | p++; | |
4084 | ||
c378eb4e | 4085 | /* Recognize 'operator TYPENAME'. */ |
c906108c | 4086 | |
c5aa993b | 4087 | if (isalpha (*p) || *p == '_' || *p == '$') |
c906108c | 4088 | { |
96142726 | 4089 | const char *q = p + 1; |
433759f7 | 4090 | |
c5aa993b | 4091 | while (isalnum (*q) || *q == '_' || *q == '$') |
c906108c SS |
4092 | q++; |
4093 | *end = q; | |
4094 | return p; | |
4095 | } | |
4096 | ||
53e8ad3d MS |
4097 | while (*p) |
4098 | switch (*p) | |
4099 | { | |
4100 | case '\\': /* regexp quoting */ | |
4101 | if (p[1] == '*') | |
4102 | { | |
3e43a32a | 4103 | if (p[2] == '=') /* 'operator\*=' */ |
53e8ad3d MS |
4104 | *end = p + 3; |
4105 | else /* 'operator\*' */ | |
4106 | *end = p + 2; | |
4107 | return p; | |
4108 | } | |
4109 | else if (p[1] == '[') | |
4110 | { | |
4111 | if (p[2] == ']') | |
3e43a32a MS |
4112 | error (_("mismatched quoting on brackets, " |
4113 | "try 'operator\\[\\]'")); | |
53e8ad3d MS |
4114 | else if (p[2] == '\\' && p[3] == ']') |
4115 | { | |
4116 | *end = p + 4; /* 'operator\[\]' */ | |
4117 | return p; | |
4118 | } | |
4119 | else | |
8a3fe4f8 | 4120 | error (_("nothing is allowed between '[' and ']'")); |
53e8ad3d | 4121 | } |
9af17804 | 4122 | else |
53e8ad3d | 4123 | { |
85102364 | 4124 | /* Gratuitous quote: skip it and move on. */ |
53e8ad3d MS |
4125 | p++; |
4126 | continue; | |
4127 | } | |
4128 | break; | |
4129 | case '!': | |
4130 | case '=': | |
4131 | case '*': | |
4132 | case '/': | |
4133 | case '%': | |
4134 | case '^': | |
4135 | if (p[1] == '=') | |
4136 | *end = p + 2; | |
4137 | else | |
4138 | *end = p + 1; | |
4139 | return p; | |
4140 | case '<': | |
4141 | case '>': | |
4142 | case '+': | |
4143 | case '-': | |
4144 | case '&': | |
4145 | case '|': | |
4146 | if (p[0] == '-' && p[1] == '>') | |
4147 | { | |
c378eb4e | 4148 | /* Struct pointer member operator 'operator->'. */ |
53e8ad3d MS |
4149 | if (p[2] == '*') |
4150 | { | |
4151 | *end = p + 3; /* 'operator->*' */ | |
4152 | return p; | |
4153 | } | |
4154 | else if (p[2] == '\\') | |
4155 | { | |
4156 | *end = p + 4; /* Hopefully 'operator->\*' */ | |
4157 | return p; | |
4158 | } | |
4159 | else | |
4160 | { | |
4161 | *end = p + 2; /* 'operator->' */ | |
4162 | return p; | |
4163 | } | |
4164 | } | |
4165 | if (p[1] == '=' || p[1] == p[0]) | |
4166 | *end = p + 2; | |
4167 | else | |
4168 | *end = p + 1; | |
4169 | return p; | |
4170 | case '~': | |
4171 | case ',': | |
c5aa993b | 4172 | *end = p + 1; |
53e8ad3d MS |
4173 | return p; |
4174 | case '(': | |
4175 | if (p[1] != ')') | |
3e43a32a MS |
4176 | error (_("`operator ()' must be specified " |
4177 | "without whitespace in `()'")); | |
c5aa993b | 4178 | *end = p + 2; |
53e8ad3d MS |
4179 | return p; |
4180 | case '?': | |
4181 | if (p[1] != ':') | |
3e43a32a MS |
4182 | error (_("`operator ?:' must be specified " |
4183 | "without whitespace in `?:'")); | |
53e8ad3d MS |
4184 | *end = p + 2; |
4185 | return p; | |
4186 | case '[': | |
4187 | if (p[1] != ']') | |
3e43a32a MS |
4188 | error (_("`operator []' must be specified " |
4189 | "without whitespace in `[]'")); | |
53e8ad3d MS |
4190 | *end = p + 2; |
4191 | return p; | |
4192 | default: | |
8a3fe4f8 | 4193 | error (_("`operator %s' not supported"), p); |
53e8ad3d MS |
4194 | break; |
4195 | } | |
4196 | ||
c906108c SS |
4197 | *end = ""; |
4198 | return *end; | |
4199 | } | |
c906108c | 4200 | \f |
c5aa993b | 4201 | |
4a0788e0 | 4202 | /* See class declaration. */ |
9fdc877b | 4203 | |
4a0788e0 AB |
4204 | info_sources_filter::info_sources_filter (match_on match_type, |
4205 | const char *regexp) | |
4206 | : m_match_type (match_type), | |
4207 | m_regexp (regexp) | |
9fdc877b | 4208 | { |
4a0788e0 AB |
4209 | /* Setup the compiled regular expression M_C_REGEXP based on M_REGEXP. */ |
4210 | if (m_regexp != nullptr && *m_regexp != '\0') | |
4211 | { | |
4212 | gdb_assert (m_regexp != nullptr); | |
28cd9371 | 4213 | |
4a0788e0 AB |
4214 | int cflags = REG_NOSUB; |
4215 | #ifdef HAVE_CASE_INSENSITIVE_FILE_SYSTEM | |
4216 | cflags |= REG_ICASE; | |
4217 | #endif | |
4218 | m_c_regexp.emplace (m_regexp, cflags, _("Invalid regexp")); | |
4219 | } | |
4220 | } | |
28cd9371 | 4221 | |
4a0788e0 | 4222 | /* See class declaration. */ |
9fdc877b | 4223 | |
4a0788e0 AB |
4224 | bool |
4225 | info_sources_filter::matches (const char *fullname) const | |
4226 | { | |
4227 | /* Does it match regexp? */ | |
4228 | if (m_c_regexp.has_value ()) | |
4229 | { | |
4230 | const char *to_match; | |
4231 | std::string dirname; | |
4232 | ||
4233 | switch (m_match_type) | |
4234 | { | |
4235 | case match_on::DIRNAME: | |
4236 | dirname = ldirname (fullname); | |
4237 | to_match = dirname.c_str (); | |
4238 | break; | |
4239 | case match_on::BASENAME: | |
4240 | to_match = lbasename (fullname); | |
4241 | break; | |
4242 | case match_on::FULLNAME: | |
4243 | to_match = fullname; | |
4244 | break; | |
2814ff83 TT |
4245 | default: |
4246 | gdb_assert_not_reached ("bad m_match_type"); | |
4a0788e0 AB |
4247 | } |
4248 | ||
4249 | if (m_c_regexp->exec (to_match, 0, NULL, 0) != 0) | |
4250 | return false; | |
4251 | } | |
4252 | ||
4253 | return true; | |
4254 | } | |
4255 | ||
4a0788e0 AB |
4256 | /* Data structure to maintain the state used for printing the results of |
4257 | the 'info sources' command. */ | |
4258 | ||
4259 | struct output_source_filename_data | |
4260 | { | |
4261 | /* Create an object for displaying the results of the 'info sources' | |
0e350a05 AB |
4262 | command to UIOUT. FILTER must remain valid and unchanged for the |
4263 | lifetime of this object as this object retains a reference to FILTER. */ | |
4264 | output_source_filename_data (struct ui_out *uiout, | |
4265 | const info_sources_filter &filter) | |
4266 | : m_filter (filter), | |
4267 | m_uiout (uiout) | |
4a0788e0 AB |
4268 | { /* Nothing. */ } |
4269 | ||
4270 | DISABLE_COPY_AND_ASSIGN (output_source_filename_data); | |
4271 | ||
4272 | /* Reset enough state of this object so we can match against a new set of | |
4273 | files. The existing regular expression is retained though. */ | |
4274 | void reset_output () | |
4275 | { | |
4276 | m_first = true; | |
4277 | m_filename_seen_cache.clear (); | |
4278 | } | |
4279 | ||
0e350a05 AB |
4280 | /* Worker for sources_info, outputs the file name formatted for either |
4281 | cli or mi (based on the current_uiout). In cli mode displays | |
4282 | FULLNAME with a comma separating this name from any previously | |
4283 | printed name (line breaks are added at the comma). In MI mode | |
4284 | outputs a tuple containing DISP_NAME (the files display name), | |
4285 | FULLNAME, and EXPANDED_P (true when this file is from a fully | |
4286 | expanded symtab, otherwise false). */ | |
4287 | void output (const char *disp_name, const char *fullname, bool expanded_p); | |
eca864fe | 4288 | |
f4655dee TT |
4289 | /* An overload suitable for use as a callback to |
4290 | quick_symbol_functions::map_symbol_filenames. */ | |
4291 | void operator() (const char *filename, const char *fullname) | |
4292 | { | |
0e350a05 AB |
4293 | /* The false here indicates that this file is from an unexpanded |
4294 | symtab. */ | |
4295 | output (filename, fullname, false); | |
f4655dee | 4296 | } |
4a0788e0 | 4297 | |
bd742128 AB |
4298 | /* Return true if at least one filename has been printed (after a call to |
4299 | output) since either this object was created, or the last call to | |
4300 | reset_output. */ | |
4301 | bool printed_filename_p () const | |
4302 | { | |
4303 | return !m_first; | |
4304 | } | |
4305 | ||
4a0788e0 AB |
4306 | private: |
4307 | ||
4308 | /* Flag of whether we're printing the first one. */ | |
4309 | bool m_first = true; | |
4310 | ||
4311 | /* Cache of what we've seen so far. */ | |
4312 | filename_seen_cache m_filename_seen_cache; | |
4313 | ||
4314 | /* How source filename should be filtered. */ | |
4315 | const info_sources_filter &m_filter; | |
0e350a05 AB |
4316 | |
4317 | /* The object to which output is sent. */ | |
4318 | struct ui_out *m_uiout; | |
f4655dee TT |
4319 | }; |
4320 | ||
4a0788e0 AB |
4321 | /* See comment in class declaration above. */ |
4322 | ||
f4655dee | 4323 | void |
0e350a05 AB |
4324 | output_source_filename_data::output (const char *disp_name, |
4325 | const char *fullname, | |
4326 | bool expanded_p) | |
c94fdfd0 EZ |
4327 | { |
4328 | /* Since a single source file can result in several partial symbol | |
4329 | tables, we need to avoid printing it more than once. Note: if | |
4330 | some of the psymtabs are read in and some are not, it gets | |
4331 | printed both under "Source files for which symbols have been | |
4332 | read" and "Source files for which symbols will be read in on | |
4333 | demand". I consider this a reasonable way to deal with the | |
4334 | situation. I'm not sure whether this can also happen for | |
4335 | symtabs; it doesn't hurt to check. */ | |
4336 | ||
4a0788e0 | 4337 | /* Was NAME already seen? If so, then don't print it again. */ |
0e350a05 | 4338 | if (m_filename_seen_cache.seen (fullname)) |
4a0788e0 | 4339 | return; |
28cd9371 | 4340 | |
4a0788e0 | 4341 | /* If the filter rejects this file then don't print it. */ |
0e350a05 | 4342 | if (!m_filter.matches (fullname)) |
4a0788e0 | 4343 | return; |
28cd9371 | 4344 | |
0e350a05 AB |
4345 | ui_out_emit_tuple ui_emitter (m_uiout, nullptr); |
4346 | ||
28cd9371 | 4347 | /* Print it and reset *FIRST. */ |
4a0788e0 | 4348 | if (!m_first) |
0e350a05 | 4349 | m_uiout->text (", "); |
4a0788e0 | 4350 | m_first = false; |
c906108c SS |
4351 | |
4352 | wrap_here (""); | |
0e350a05 AB |
4353 | if (m_uiout->is_mi_like_p ()) |
4354 | { | |
4355 | m_uiout->field_string ("file", disp_name, file_name_style.style ()); | |
4356 | if (fullname != nullptr) | |
4357 | m_uiout->field_string ("fullname", fullname, | |
4358 | file_name_style.style ()); | |
4359 | m_uiout->field_string ("debug-fully-read", | |
4360 | (expanded_p ? "true" : "false")); | |
4361 | } | |
4362 | else | |
4363 | { | |
4364 | if (fullname == nullptr) | |
4365 | fullname = disp_name; | |
4366 | m_uiout->field_string ("fullname", fullname, | |
4367 | file_name_style.style ()); | |
4368 | } | |
c5aa993b | 4369 | } |
c906108c | 4370 | |
4a0788e0 AB |
4371 | /* For the 'info sources' command, what part of the file names should we be |
4372 | matching the user supplied regular expression against? */ | |
4373 | ||
4374 | struct filename_partial_match_opts | |
4375 | { | |
4376 | /* Only match the directory name part. */ | |
4377 | bool dirname = false; | |
4378 | ||
4379 | /* Only match the basename part. */ | |
4380 | bool basename = false; | |
4381 | }; | |
4382 | ||
28cd9371 PW |
4383 | using isrc_flag_option_def |
4384 | = gdb::option::flag_option_def<filename_partial_match_opts>; | |
4385 | ||
4386 | static const gdb::option::option_def info_sources_option_defs[] = { | |
4387 | ||
4388 | isrc_flag_option_def { | |
4389 | "dirname", | |
4390 | [] (filename_partial_match_opts *opts) { return &opts->dirname; }, | |
4391 | N_("Show only the files having a dirname matching REGEXP."), | |
4392 | }, | |
4393 | ||
4394 | isrc_flag_option_def { | |
4395 | "basename", | |
4396 | [] (filename_partial_match_opts *opts) { return &opts->basename; }, | |
4397 | N_("Show only the files having a basename matching REGEXP."), | |
4398 | }, | |
4399 | ||
4400 | }; | |
4401 | ||
4402 | /* Create an option_def_group for the "info sources" options, with | |
4403 | ISRC_OPTS as context. */ | |
4404 | ||
4405 | static inline gdb::option::option_def_group | |
4406 | make_info_sources_options_def_group (filename_partial_match_opts *isrc_opts) | |
4407 | { | |
4408 | return {{info_sources_option_defs}, isrc_opts}; | |
4409 | } | |
4410 | ||
28cd9371 PW |
4411 | /* Completer for "info sources". */ |
4412 | ||
4413 | static void | |
4414 | info_sources_command_completer (cmd_list_element *ignore, | |
4415 | completion_tracker &tracker, | |
4416 | const char *text, const char *word) | |
4417 | { | |
4418 | const auto group = make_info_sources_options_def_group (nullptr); | |
4419 | if (gdb::option::complete_options | |
4420 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
4421 | return; | |
4422 | } | |
4423 | ||
0e350a05 AB |
4424 | /* See symtab.h. */ |
4425 | ||
4426 | void | |
4427 | info_sources_worker (struct ui_out *uiout, | |
1fb1ce02 | 4428 | bool group_by_objfile, |
0e350a05 AB |
4429 | const info_sources_filter &filter) |
4430 | { | |
4431 | output_source_filename_data data (uiout, filter); | |
4432 | ||
4433 | ui_out_emit_list results_emitter (uiout, "files"); | |
4434 | gdb::optional<ui_out_emit_tuple> output_tuple; | |
4435 | gdb::optional<ui_out_emit_list> sources_list; | |
4436 | ||
bd742128 | 4437 | gdb_assert (group_by_objfile || uiout->is_mi_like_p ()); |
0e350a05 AB |
4438 | |
4439 | for (objfile *objfile : current_program_space->objfiles ()) | |
4440 | { | |
1fb1ce02 AB |
4441 | if (group_by_objfile) |
4442 | { | |
4443 | output_tuple.emplace (uiout, nullptr); | |
4444 | uiout->field_string ("filename", objfile_name (objfile)); | |
bd742128 | 4445 | uiout->text (":\n"); |
1fb1ce02 | 4446 | bool debug_fully_readin = !objfile->has_unexpanded_symtabs (); |
bd742128 | 4447 | if (uiout->is_mi_like_p ()) |
1fb1ce02 | 4448 | { |
bd742128 AB |
4449 | const char *debug_info_state; |
4450 | if (objfile_has_symbols (objfile)) | |
4451 | { | |
4452 | if (debug_fully_readin) | |
4453 | debug_info_state = "fully-read"; | |
4454 | else | |
4455 | debug_info_state = "partially-read"; | |
4456 | } | |
1fb1ce02 | 4457 | else |
bd742128 AB |
4458 | debug_info_state = "none"; |
4459 | current_uiout->field_string ("debug-info", debug_info_state); | |
1fb1ce02 AB |
4460 | } |
4461 | else | |
bd742128 AB |
4462 | { |
4463 | if (!debug_fully_readin) | |
4464 | uiout->text ("(Full debug information has not yet been read " | |
4465 | "for this file.)\n"); | |
4466 | if (!objfile_has_symbols (objfile)) | |
4467 | uiout->text ("(Objfile has no debug information.)\n"); | |
4468 | uiout->text ("\n"); | |
4469 | } | |
1fb1ce02 AB |
4470 | sources_list.emplace (uiout, "sources"); |
4471 | } | |
4472 | ||
0e350a05 AB |
4473 | for (compunit_symtab *cu : objfile->compunits ()) |
4474 | { | |
4475 | for (symtab *s : compunit_filetabs (cu)) | |
4476 | { | |
4477 | const char *file = symtab_to_filename_for_display (s); | |
4478 | const char *fullname = symtab_to_fullname (s); | |
4479 | data.output (file, fullname, true); | |
4480 | } | |
4481 | } | |
1fb1ce02 AB |
4482 | |
4483 | if (group_by_objfile) | |
4484 | { | |
4485 | objfile->map_symbol_filenames (data, true /* need_fullname */); | |
bd742128 AB |
4486 | if (data.printed_filename_p ()) |
4487 | uiout->text ("\n\n"); | |
1fb1ce02 AB |
4488 | data.reset_output (); |
4489 | sources_list.reset (); | |
4490 | output_tuple.reset (); | |
4491 | } | |
0e350a05 AB |
4492 | } |
4493 | ||
1fb1ce02 AB |
4494 | if (!group_by_objfile) |
4495 | { | |
1fb1ce02 AB |
4496 | data.reset_output (); |
4497 | map_symbol_filenames (data, true /*need_fullname*/); | |
1fb1ce02 | 4498 | } |
0e350a05 AB |
4499 | } |
4500 | ||
4a0788e0 AB |
4501 | /* Implement the 'info sources' command. */ |
4502 | ||
28cd9371 PW |
4503 | static void |
4504 | info_sources_command (const char *args, int from_tty) | |
c906108c | 4505 | { |
c906108c | 4506 | if (!have_full_symbols () && !have_partial_symbols ()) |
4a0788e0 | 4507 | error (_("No symbol table is loaded. Use the \"file\" command.")); |
28cd9371 | 4508 | |
4a0788e0 AB |
4509 | filename_partial_match_opts match_opts; |
4510 | auto group = make_info_sources_options_def_group (&match_opts); | |
28cd9371 PW |
4511 | gdb::option::process_options |
4512 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_ERROR, group); | |
9fdc877b | 4513 | |
4a0788e0 AB |
4514 | if (match_opts.dirname && match_opts.basename) |
4515 | error (_("You cannot give both -basename and -dirname to 'info sources'.")); | |
c906108c | 4516 | |
4a0788e0 | 4517 | const char *regex = nullptr; |
0e350a05 | 4518 | if (args != NULL && *args != '\000') |
4a0788e0 | 4519 | regex = args; |
28cd9371 | 4520 | |
4a0788e0 AB |
4521 | if ((match_opts.dirname || match_opts.basename) && regex == nullptr) |
4522 | error (_("Missing REGEXP for 'info sources'.")); | |
28cd9371 | 4523 | |
4a0788e0 AB |
4524 | info_sources_filter::match_on match_type; |
4525 | if (match_opts.dirname) | |
4526 | match_type = info_sources_filter::match_on::DIRNAME; | |
4527 | else if (match_opts.basename) | |
4528 | match_type = info_sources_filter::match_on::BASENAME; | |
28cd9371 | 4529 | else |
4a0788e0 AB |
4530 | match_type = info_sources_filter::match_on::FULLNAME; |
4531 | ||
4532 | info_sources_filter filter (match_type, regex); | |
bd742128 | 4533 | info_sources_worker (current_uiout, true, filter); |
c906108c SS |
4534 | } |
4535 | ||
470c0b1c AB |
4536 | /* Compare FILE against all the entries of FILENAMES. If BASENAMES is |
4537 | true compare only lbasename of FILENAMES. */ | |
fbd9ab74 | 4538 | |
470c0b1c AB |
4539 | static bool |
4540 | file_matches (const char *file, const std::vector<const char *> &filenames, | |
4541 | bool basenames) | |
c906108c | 4542 | { |
470c0b1c AB |
4543 | if (filenames.empty ()) |
4544 | return true; | |
c906108c | 4545 | |
470c0b1c | 4546 | for (const char *name : filenames) |
c906108c | 4547 | { |
470c0b1c AB |
4548 | name = (basenames ? lbasename (name) : name); |
4549 | if (compare_filenames_for_search (file, name)) | |
4550 | return true; | |
c906108c | 4551 | } |
470c0b1c AB |
4552 | |
4553 | return false; | |
c906108c SS |
4554 | } |
4555 | ||
f97a63c5 AB |
4556 | /* Helper function for std::sort on symbol_search objects. Can only sort |
4557 | symbols, not minimal symbols. */ | |
eca864fe | 4558 | |
b9c04fb2 TT |
4559 | int |
4560 | symbol_search::compare_search_syms (const symbol_search &sym_a, | |
4561 | const symbol_search &sym_b) | |
434d2d4f | 4562 | { |
b52109bc DE |
4563 | int c; |
4564 | ||
b9c04fb2 TT |
4565 | c = FILENAME_CMP (symbol_symtab (sym_a.symbol)->filename, |
4566 | symbol_symtab (sym_b.symbol)->filename); | |
b52109bc DE |
4567 | if (c != 0) |
4568 | return c; | |
434d2d4f | 4569 | |
b9c04fb2 TT |
4570 | if (sym_a.block != sym_b.block) |
4571 | return sym_a.block - sym_b.block; | |
b52109bc | 4572 | |
987012b8 | 4573 | return strcmp (sym_a.symbol->print_name (), sym_b.symbol->print_name ()); |
434d2d4f DJ |
4574 | } |
4575 | ||
12615cba PW |
4576 | /* Returns true if the type_name of symbol_type of SYM matches TREG. |
4577 | If SYM has no symbol_type or symbol_name, returns false. */ | |
4578 | ||
4579 | bool | |
4580 | treg_matches_sym_type_name (const compiled_regex &treg, | |
4581 | const struct symbol *sym) | |
4582 | { | |
4583 | struct type *sym_type; | |
4584 | std::string printed_sym_type_name; | |
4585 | ||
4586 | if (symbol_lookup_debug > 1) | |
4587 | { | |
4588 | fprintf_unfiltered (gdb_stdlog, | |
4589 | "treg_matches_sym_type_name\n sym %s\n", | |
987012b8 | 4590 | sym->natural_name ()); |
12615cba PW |
4591 | } |
4592 | ||
4593 | sym_type = SYMBOL_TYPE (sym); | |
4594 | if (sym_type == NULL) | |
4595 | return false; | |
4596 | ||
43d397ca PW |
4597 | { |
4598 | scoped_switch_to_sym_language_if_auto l (sym); | |
12615cba | 4599 | |
12615cba | 4600 | printed_sym_type_name = type_to_string (sym_type); |
43d397ca PW |
4601 | } |
4602 | ||
12615cba PW |
4603 | |
4604 | if (symbol_lookup_debug > 1) | |
4605 | { | |
4606 | fprintf_unfiltered (gdb_stdlog, | |
4607 | " sym_type_name %s\n", | |
4608 | printed_sym_type_name.c_str ()); | |
4609 | } | |
4610 | ||
4611 | ||
4612 | if (printed_sym_type_name.empty ()) | |
4613 | return false; | |
4614 | ||
4615 | return treg.exec (printed_sym_type_name.c_str (), 0, NULL, 0) == 0; | |
4616 | } | |
4617 | ||
f97a63c5 AB |
4618 | /* See symtab.h. */ |
4619 | ||
4620 | bool | |
4621 | global_symbol_searcher::is_suitable_msymbol | |
4622 | (const enum search_domain kind, const minimal_symbol *msymbol) | |
4623 | { | |
4624 | switch (MSYMBOL_TYPE (msymbol)) | |
4625 | { | |
4626 | case mst_data: | |
4627 | case mst_bss: | |
4628 | case mst_file_data: | |
4629 | case mst_file_bss: | |
4630 | return kind == VARIABLES_DOMAIN; | |
4631 | case mst_text: | |
4632 | case mst_file_text: | |
4633 | case mst_solib_trampoline: | |
4634 | case mst_text_gnu_ifunc: | |
4635 | return kind == FUNCTIONS_DOMAIN; | |
4636 | default: | |
4637 | return false; | |
4638 | } | |
4639 | } | |
4640 | ||
4641 | /* See symtab.h. */ | |
4642 | ||
4643 | bool | |
4644 | global_symbol_searcher::expand_symtabs | |
4645 | (objfile *objfile, const gdb::optional<compiled_regex> &preg) const | |
4646 | { | |
4647 | enum search_domain kind = m_kind; | |
4648 | bool found_msymbol = false; | |
4649 | ||
4d080b46 TT |
4650 | objfile->expand_symtabs_matching |
4651 | ([&] (const char *filename, bool basenames) | |
4652 | { | |
4653 | return file_matches (filename, filenames, basenames); | |
4654 | }, | |
4655 | &lookup_name_info::match_any (), | |
4656 | [&] (const char *symname) | |
4657 | { | |
4658 | return (!preg.has_value () | |
4659 | || preg->exec (symname, 0, NULL, 0) == 0); | |
4660 | }, | |
4661 | NULL, | |
03a8ea51 | 4662 | SEARCH_GLOBAL_BLOCK | SEARCH_STATIC_BLOCK, |
3bfa51a7 | 4663 | UNDEF_DOMAIN, |
4d080b46 | 4664 | kind); |
f97a63c5 AB |
4665 | |
4666 | /* Here, we search through the minimal symbol tables for functions and | |
4667 | variables that match, and force their symbols to be read. This is in | |
4668 | particular necessary for demangled variable names, which are no longer | |
4669 | put into the partial symbol tables. The symbol will then be found | |
4670 | during the scan of symtabs later. | |
4671 | ||
4672 | For functions, find_pc_symtab should succeed if we have debug info for | |
4673 | the function, for variables we have to call | |
4674 | lookup_symbol_in_objfile_from_linkage_name to determine if the | |
4675 | variable has debug info. If the lookup fails, set found_msymbol so | |
4676 | that we will rescan to print any matching symbols without debug info. | |
4677 | We only search the objfile the msymbol came from, we no longer search | |
4678 | all objfiles. In large programs (1000s of shared libs) searching all | |
4679 | objfiles is not worth the pain. */ | |
4680 | if (filenames.empty () | |
4681 | && (kind == VARIABLES_DOMAIN || kind == FUNCTIONS_DOMAIN)) | |
4682 | { | |
4683 | for (minimal_symbol *msymbol : objfile->msymbols ()) | |
4684 | { | |
4685 | QUIT; | |
4686 | ||
4687 | if (msymbol->created_by_gdb) | |
4688 | continue; | |
4689 | ||
4690 | if (is_suitable_msymbol (kind, msymbol)) | |
4691 | { | |
4692 | if (!preg.has_value () | |
4693 | || preg->exec (msymbol->natural_name (), 0, | |
4694 | NULL, 0) == 0) | |
4695 | { | |
4696 | /* An important side-effect of these lookup functions is | |
4697 | to expand the symbol table if msymbol is found, later | |
4698 | in the process we will add matching symbols or | |
4699 | msymbols to the results list, and that requires that | |
4700 | the symbols tables are expanded. */ | |
4701 | if (kind == FUNCTIONS_DOMAIN | |
4702 | ? (find_pc_compunit_symtab | |
4703 | (MSYMBOL_VALUE_ADDRESS (objfile, msymbol)) | |
4704 | == NULL) | |
4705 | : (lookup_symbol_in_objfile_from_linkage_name | |
4706 | (objfile, msymbol->linkage_name (), | |
4707 | VAR_DOMAIN) | |
4708 | .symbol == NULL)) | |
4709 | found_msymbol = true; | |
4710 | } | |
4711 | } | |
4712 | } | |
4713 | } | |
4714 | ||
4715 | return found_msymbol; | |
4716 | } | |
4717 | ||
4718 | /* See symtab.h. */ | |
4719 | ||
c2512106 | 4720 | bool |
f97a63c5 AB |
4721 | global_symbol_searcher::add_matching_symbols |
4722 | (objfile *objfile, | |
4723 | const gdb::optional<compiled_regex> &preg, | |
4724 | const gdb::optional<compiled_regex> &treg, | |
c2512106 | 4725 | std::set<symbol_search> *result_set) const |
f97a63c5 AB |
4726 | { |
4727 | enum search_domain kind = m_kind; | |
4728 | ||
4729 | /* Add matching symbols (if not already present). */ | |
4730 | for (compunit_symtab *cust : objfile->compunits ()) | |
4731 | { | |
4732 | const struct blockvector *bv = COMPUNIT_BLOCKVECTOR (cust); | |
4733 | ||
4734 | for (block_enum block : { GLOBAL_BLOCK, STATIC_BLOCK }) | |
4735 | { | |
4736 | struct block_iterator iter; | |
4737 | struct symbol *sym; | |
4738 | const struct block *b = BLOCKVECTOR_BLOCK (bv, block); | |
4739 | ||
4740 | ALL_BLOCK_SYMBOLS (b, iter, sym) | |
4741 | { | |
4742 | struct symtab *real_symtab = symbol_symtab (sym); | |
4743 | ||
4744 | QUIT; | |
4745 | ||
4746 | /* Check first sole REAL_SYMTAB->FILENAME. It does | |
4747 | not need to be a substring of symtab_to_fullname as | |
4748 | it may contain "./" etc. */ | |
4749 | if ((file_matches (real_symtab->filename, filenames, false) | |
4750 | || ((basenames_may_differ | |
4751 | || file_matches (lbasename (real_symtab->filename), | |
4752 | filenames, true)) | |
4753 | && file_matches (symtab_to_fullname (real_symtab), | |
4754 | filenames, false))) | |
4755 | && ((!preg.has_value () | |
4756 | || preg->exec (sym->natural_name (), 0, | |
4757 | NULL, 0) == 0) | |
4758 | && ((kind == VARIABLES_DOMAIN | |
4759 | && SYMBOL_CLASS (sym) != LOC_TYPEDEF | |
4760 | && SYMBOL_CLASS (sym) != LOC_UNRESOLVED | |
4761 | && SYMBOL_CLASS (sym) != LOC_BLOCK | |
4762 | /* LOC_CONST can be used for more than | |
4763 | just enums, e.g., c++ static const | |
4764 | members. We only want to skip enums | |
4765 | here. */ | |
4766 | && !(SYMBOL_CLASS (sym) == LOC_CONST | |
78134374 | 4767 | && (SYMBOL_TYPE (sym)->code () |
f97a63c5 AB |
4768 | == TYPE_CODE_ENUM)) |
4769 | && (!treg.has_value () | |
4770 | || treg_matches_sym_type_name (*treg, sym))) | |
4771 | || (kind == FUNCTIONS_DOMAIN | |
4772 | && SYMBOL_CLASS (sym) == LOC_BLOCK | |
4773 | && (!treg.has_value () | |
4774 | || treg_matches_sym_type_name (*treg, | |
4775 | sym))) | |
4776 | || (kind == TYPES_DOMAIN | |
4777 | && SYMBOL_CLASS (sym) == LOC_TYPEDEF | |
4778 | && SYMBOL_DOMAIN (sym) != MODULE_DOMAIN) | |
4779 | || (kind == MODULES_DOMAIN | |
4780 | && SYMBOL_DOMAIN (sym) == MODULE_DOMAIN | |
4781 | && SYMBOL_LINE (sym) != 0)))) | |
4782 | { | |
c2512106 AB |
4783 | if (result_set->size () < m_max_search_results) |
4784 | { | |
4785 | /* Match, insert if not already in the results. */ | |
4786 | symbol_search ss (block, sym); | |
4787 | if (result_set->find (ss) == result_set->end ()) | |
4788 | result_set->insert (ss); | |
4789 | } | |
4790 | else | |
4791 | return false; | |
f97a63c5 AB |
4792 | } |
4793 | } | |
4794 | } | |
4795 | } | |
c2512106 AB |
4796 | |
4797 | return true; | |
f97a63c5 AB |
4798 | } |
4799 | ||
4800 | /* See symtab.h. */ | |
4801 | ||
c2512106 | 4802 | bool |
f97a63c5 AB |
4803 | global_symbol_searcher::add_matching_msymbols |
4804 | (objfile *objfile, const gdb::optional<compiled_regex> &preg, | |
4805 | std::vector<symbol_search> *results) const | |
4806 | { | |
4807 | enum search_domain kind = m_kind; | |
4808 | ||
4809 | for (minimal_symbol *msymbol : objfile->msymbols ()) | |
4810 | { | |
4811 | QUIT; | |
4812 | ||
4813 | if (msymbol->created_by_gdb) | |
4814 | continue; | |
4815 | ||
4816 | if (is_suitable_msymbol (kind, msymbol)) | |
4817 | { | |
4818 | if (!preg.has_value () | |
4819 | || preg->exec (msymbol->natural_name (), 0, | |
4820 | NULL, 0) == 0) | |
4821 | { | |
4822 | /* For functions we can do a quick check of whether the | |
4823 | symbol might be found via find_pc_symtab. */ | |
4824 | if (kind != FUNCTIONS_DOMAIN | |
4825 | || (find_pc_compunit_symtab | |
4826 | (MSYMBOL_VALUE_ADDRESS (objfile, msymbol)) | |
4827 | == NULL)) | |
4828 | { | |
4829 | if (lookup_symbol_in_objfile_from_linkage_name | |
4830 | (objfile, msymbol->linkage_name (), | |
4831 | VAR_DOMAIN).symbol == NULL) | |
4832 | { | |
4833 | /* Matching msymbol, add it to the results list. */ | |
c2512106 AB |
4834 | if (results->size () < m_max_search_results) |
4835 | results->emplace_back (GLOBAL_BLOCK, msymbol, objfile); | |
4836 | else | |
4837 | return false; | |
f97a63c5 AB |
4838 | } |
4839 | } | |
4840 | } | |
4841 | } | |
4842 | } | |
12615cba | 4843 | |
c2512106 | 4844 | return true; |
434d2d4f | 4845 | } |
5bd98722 | 4846 | |
470c0b1c | 4847 | /* See symtab.h. */ |
c378eb4e | 4848 | |
b9c04fb2 | 4849 | std::vector<symbol_search> |
470c0b1c | 4850 | global_symbol_searcher::search () const |
c906108c | 4851 | { |
2d7cc5c7 | 4852 | gdb::optional<compiled_regex> preg; |
12615cba | 4853 | gdb::optional<compiled_regex> treg; |
c906108c | 4854 | |
470c0b1c | 4855 | gdb_assert (m_kind != ALL_DOMAIN); |
e8930875 | 4856 | |
470c0b1c | 4857 | if (m_symbol_name_regexp != NULL) |
c906108c | 4858 | { |
470c0b1c AB |
4859 | const char *symbol_name_regexp = m_symbol_name_regexp; |
4860 | ||
c906108c | 4861 | /* Make sure spacing is right for C++ operators. |
dda83cd7 SM |
4862 | This is just a courtesy to make the matching less sensitive |
4863 | to how many spaces the user leaves between 'operator' | |
4864 | and <TYPENAME> or <OPERATOR>. */ | |
96142726 | 4865 | const char *opend; |
470c0b1c | 4866 | const char *opname = operator_chars (symbol_name_regexp, &opend); |
433759f7 | 4867 | |
c906108c | 4868 | if (*opname) |
c5aa993b | 4869 | { |
3e43a32a | 4870 | int fix = -1; /* -1 means ok; otherwise number of |
dda83cd7 | 4871 | spaces needed. */ |
433759f7 | 4872 | |
c5aa993b JM |
4873 | if (isalpha (*opname) || *opname == '_' || *opname == '$') |
4874 | { | |
c378eb4e | 4875 | /* There should 1 space between 'operator' and 'TYPENAME'. */ |
c5aa993b JM |
4876 | if (opname[-1] != ' ' || opname[-2] == ' ') |
4877 | fix = 1; | |
4878 | } | |
4879 | else | |
4880 | { | |
c378eb4e | 4881 | /* There should 0 spaces between 'operator' and 'OPERATOR'. */ |
c5aa993b JM |
4882 | if (opname[-1] == ' ') |
4883 | fix = 0; | |
4884 | } | |
c378eb4e | 4885 | /* If wrong number of spaces, fix it. */ |
c5aa993b JM |
4886 | if (fix >= 0) |
4887 | { | |
045f55a6 | 4888 | char *tmp = (char *) alloca (8 + fix + strlen (opname) + 1); |
433759f7 | 4889 | |
c5aa993b | 4890 | sprintf (tmp, "operator%.*s%s", fix, " ", opname); |
470c0b1c | 4891 | symbol_name_regexp = tmp; |
c5aa993b JM |
4892 | } |
4893 | } | |
4894 | ||
2d7cc5c7 PA |
4895 | int cflags = REG_NOSUB | (case_sensitivity == case_sensitive_off |
4896 | ? REG_ICASE : 0); | |
470c0b1c AB |
4897 | preg.emplace (symbol_name_regexp, cflags, |
4898 | _("Invalid regexp")); | |
c906108c SS |
4899 | } |
4900 | ||
470c0b1c | 4901 | if (m_symbol_type_regexp != NULL) |
12615cba PW |
4902 | { |
4903 | int cflags = REG_NOSUB | (case_sensitivity == case_sensitive_off | |
4904 | ? REG_ICASE : 0); | |
470c0b1c AB |
4905 | treg.emplace (m_symbol_type_regexp, cflags, |
4906 | _("Invalid regexp")); | |
12615cba PW |
4907 | } |
4908 | ||
f97a63c5 | 4909 | bool found_msymbol = false; |
c2512106 | 4910 | std::set<symbol_search> result_set; |
2030c079 | 4911 | for (objfile *objfile : current_program_space->objfiles ()) |
d8aeb77f | 4912 | { |
f97a63c5 AB |
4913 | /* Expand symtabs within objfile that possibly contain matching |
4914 | symbols. */ | |
4915 | found_msymbol |= expand_symtabs (objfile, preg); | |
4916 | ||
c2512106 AB |
4917 | /* Find matching symbols within OBJFILE and add them in to the |
4918 | RESULT_SET set. Use a set here so that we can easily detect | |
4919 | duplicates as we go, and can therefore track how many unique | |
4920 | matches we have found so far. */ | |
4921 | if (!add_matching_symbols (objfile, preg, treg, &result_set)) | |
4922 | break; | |
d8aeb77f | 4923 | } |
c906108c | 4924 | |
c2512106 AB |
4925 | /* Convert the result set into a sorted result list, as std::set is |
4926 | defined to be sorted then no explicit call to std::sort is needed. */ | |
4927 | std::vector<symbol_search> result (result_set.begin (), result_set.end ()); | |
b52109bc | 4928 | |
470c0b1c | 4929 | /* If there are no debug symbols, then add matching minsyms. But if the |
f97a63c5 AB |
4930 | user wants to see symbols matching a type regexp, then never give a |
4931 | minimal symbol, as we assume that a minimal symbol does not have a | |
4932 | type. */ | |
4933 | if ((found_msymbol || (filenames.empty () && m_kind == VARIABLES_DOMAIN)) | |
470c0b1c | 4934 | && !m_exclude_minsyms |
a8462bbf | 4935 | && !treg.has_value ()) |
c906108c | 4936 | { |
f97a63c5 | 4937 | gdb_assert (m_kind == VARIABLES_DOMAIN || m_kind == FUNCTIONS_DOMAIN); |
2030c079 | 4938 | for (objfile *objfile : current_program_space->objfiles ()) |
c2512106 AB |
4939 | if (!add_matching_msymbols (objfile, preg, &result)) |
4940 | break; | |
c906108c SS |
4941 | } |
4942 | ||
b9c04fb2 | 4943 | return result; |
c906108c SS |
4944 | } |
4945 | ||
5f512a7d | 4946 | /* See symtab.h. */ |
c378eb4e | 4947 | |
5f512a7d AB |
4948 | std::string |
4949 | symbol_to_info_string (struct symbol *sym, int block, | |
4950 | enum search_domain kind) | |
c906108c | 4951 | { |
5f512a7d | 4952 | std::string str; |
05cba821 | 4953 | |
5f512a7d | 4954 | gdb_assert (block == GLOBAL_BLOCK || block == STATIC_BLOCK); |
b744723f | 4955 | |
176620f1 | 4956 | if (kind != TYPES_DOMAIN && block == STATIC_BLOCK) |
5f512a7d | 4957 | str += "static "; |
c5aa993b | 4958 | |
c378eb4e | 4959 | /* Typedef that is not a C++ class. */ |
176620f1 EZ |
4960 | if (kind == TYPES_DOMAIN |
4961 | && SYMBOL_DOMAIN (sym) != STRUCT_DOMAIN) | |
eb86c5e2 | 4962 | { |
5f512a7d AB |
4963 | string_file tmp_stream; |
4964 | ||
eb86c5e2 AB |
4965 | /* FIXME: For C (and C++) we end up with a difference in output here |
4966 | between how a typedef is printed, and non-typedefs are printed. | |
4967 | The TYPEDEF_PRINT code places a ";" at the end in an attempt to | |
4968 | appear C-like, while TYPE_PRINT doesn't. | |
4969 | ||
4970 | For the struct printing case below, things are worse, we force | |
4971 | printing of the ";" in this function, which is going to be wrong | |
4972 | for languages that don't require a ";" between statements. */ | |
78134374 | 4973 | if (SYMBOL_TYPE (sym)->code () == TYPE_CODE_TYPEDEF) |
5f512a7d | 4974 | typedef_print (SYMBOL_TYPE (sym), sym, &tmp_stream); |
eb86c5e2 | 4975 | else |
5f512a7d AB |
4976 | type_print (SYMBOL_TYPE (sym), "", &tmp_stream, -1); |
4977 | str += tmp_stream.string (); | |
eb86c5e2 | 4978 | } |
c378eb4e | 4979 | /* variable, func, or typedef-that-is-c++-class. */ |
d50bd42b DE |
4980 | else if (kind < TYPES_DOMAIN |
4981 | || (kind == TYPES_DOMAIN | |
4982 | && SYMBOL_DOMAIN (sym) == STRUCT_DOMAIN)) | |
c906108c | 4983 | { |
5f512a7d AB |
4984 | string_file tmp_stream; |
4985 | ||
c906108c | 4986 | type_print (SYMBOL_TYPE (sym), |
c5aa993b | 4987 | (SYMBOL_CLASS (sym) == LOC_TYPEDEF |
987012b8 | 4988 | ? "" : sym->print_name ()), |
5f512a7d | 4989 | &tmp_stream, 0); |
c906108c | 4990 | |
5f512a7d AB |
4991 | str += tmp_stream.string (); |
4992 | str += ";"; | |
c906108c | 4993 | } |
59c35742 AB |
4994 | /* Printing of modules is currently done here, maybe at some future |
4995 | point we might want a language specific method to print the module | |
4996 | symbol so that we can customise the output more. */ | |
4997 | else if (kind == MODULES_DOMAIN) | |
5f512a7d AB |
4998 | str += sym->print_name (); |
4999 | ||
5000 | return str; | |
5001 | } | |
5002 | ||
5003 | /* Helper function for symbol info commands, for example 'info functions', | |
5004 | 'info variables', etc. KIND is the kind of symbol we searched for, and | |
5005 | BLOCK is the type of block the symbols was found in, either GLOBAL_BLOCK | |
5006 | or STATIC_BLOCK. SYM is the symbol we found. If LAST is not NULL, | |
5007 | print file and line number information for the symbol as well. Skip | |
5008 | printing the filename if it matches LAST. */ | |
5009 | ||
5010 | static void | |
5011 | print_symbol_info (enum search_domain kind, | |
5012 | struct symbol *sym, | |
5013 | int block, const char *last) | |
5014 | { | |
5015 | scoped_switch_to_sym_language_if_auto l (sym); | |
5016 | struct symtab *s = symbol_symtab (sym); | |
5017 | ||
5018 | if (last != NULL) | |
5019 | { | |
5020 | const char *s_filename = symtab_to_filename_for_display (s); | |
5021 | ||
5022 | if (filename_cmp (last, s_filename) != 0) | |
5023 | { | |
5024 | printf_filtered (_("\nFile %ps:\n"), | |
5025 | styled_string (file_name_style.style (), | |
5026 | s_filename)); | |
5027 | } | |
5028 | ||
5029 | if (SYMBOL_LINE (sym) != 0) | |
5030 | printf_filtered ("%d:\t", SYMBOL_LINE (sym)); | |
5031 | else | |
5032 | puts_filtered ("\t"); | |
5033 | } | |
5034 | ||
5035 | std::string str = symbol_to_info_string (sym, block, kind); | |
5036 | printf_filtered ("%s\n", str.c_str ()); | |
c906108c SS |
5037 | } |
5038 | ||
5039 | /* This help function for symtab_symbol_info() prints information | |
c378eb4e MS |
5040 | for non-debugging symbols to gdb_stdout. */ |
5041 | ||
c906108c | 5042 | static void |
7c7b6655 | 5043 | print_msymbol_info (struct bound_minimal_symbol msymbol) |
c906108c | 5044 | { |
08feed99 | 5045 | struct gdbarch *gdbarch = msymbol.objfile->arch (); |
3ac4495a MS |
5046 | char *tmp; |
5047 | ||
d80b854b | 5048 | if (gdbarch_addr_bit (gdbarch) <= 32) |
77e371c0 | 5049 | tmp = hex_string_custom (BMSYMBOL_VALUE_ADDRESS (msymbol) |
bb599908 PH |
5050 | & (CORE_ADDR) 0xffffffff, |
5051 | 8); | |
3ac4495a | 5052 | else |
77e371c0 | 5053 | tmp = hex_string_custom (BMSYMBOL_VALUE_ADDRESS (msymbol), |
bb599908 | 5054 | 16); |
6a831f06 PA |
5055 | |
5056 | ui_file_style sym_style = (msymbol.minsym->text_p () | |
5057 | ? function_name_style.style () | |
5058 | : ui_file_style ()); | |
5059 | ||
5060 | printf_filtered (_("%ps %ps\n"), | |
5061 | styled_string (address_style.style (), tmp), | |
c9d95fa3 | 5062 | styled_string (sym_style, msymbol.minsym->print_name ())); |
c906108c SS |
5063 | } |
5064 | ||
5065 | /* This is the guts of the commands "info functions", "info types", and | |
c378eb4e | 5066 | "info variables". It calls search_symbols to find all matches and then |
c906108c | 5067 | print_[m]symbol_info to print out some useful information about the |
c378eb4e MS |
5068 | matches. */ |
5069 | ||
c906108c | 5070 | static void |
4acfdd20 | 5071 | symtab_symbol_info (bool quiet, bool exclude_minsyms, |
12615cba PW |
5072 | const char *regexp, enum search_domain kind, |
5073 | const char *t_regexp, int from_tty) | |
c906108c | 5074 | { |
bc043ef3 | 5075 | static const char * const classnames[] = |
59c35742 | 5076 | {"variable", "function", "type", "module"}; |
c7dcbf88 | 5077 | const char *last_filename = ""; |
c906108c SS |
5078 | int first = 1; |
5079 | ||
59c35742 | 5080 | gdb_assert (kind != ALL_DOMAIN); |
e8930875 | 5081 | |
b16507e0 AB |
5082 | if (regexp != nullptr && *regexp == '\0') |
5083 | regexp = nullptr; | |
5084 | ||
470c0b1c AB |
5085 | global_symbol_searcher spec (kind, regexp); |
5086 | spec.set_symbol_type_regexp (t_regexp); | |
5087 | spec.set_exclude_minsyms (exclude_minsyms); | |
5088 | std::vector<symbol_search> symbols = spec.search (); | |
c906108c | 5089 | |
12615cba PW |
5090 | if (!quiet) |
5091 | { | |
5092 | if (regexp != NULL) | |
5093 | { | |
5094 | if (t_regexp != NULL) | |
5095 | printf_filtered | |
5096 | (_("All %ss matching regular expression \"%s\"" | |
0c95f9ed | 5097 | " with type matching regular expression \"%s\":\n"), |
12615cba PW |
5098 | classnames[kind], regexp, t_regexp); |
5099 | else | |
5100 | printf_filtered (_("All %ss matching regular expression \"%s\":\n"), | |
5101 | classnames[kind], regexp); | |
5102 | } | |
5103 | else | |
5104 | { | |
5105 | if (t_regexp != NULL) | |
5106 | printf_filtered | |
5107 | (_("All defined %ss" | |
0c95f9ed | 5108 | " with type matching regular expression \"%s\" :\n"), |
12615cba PW |
5109 | classnames[kind], t_regexp); |
5110 | else | |
5111 | printf_filtered (_("All defined %ss:\n"), classnames[kind]); | |
5112 | } | |
5113 | } | |
c906108c | 5114 | |
b9c04fb2 | 5115 | for (const symbol_search &p : symbols) |
c906108c SS |
5116 | { |
5117 | QUIT; | |
5118 | ||
b9c04fb2 | 5119 | if (p.msymbol.minsym != NULL) |
c5aa993b JM |
5120 | { |
5121 | if (first) | |
5122 | { | |
12615cba PW |
5123 | if (!quiet) |
5124 | printf_filtered (_("\nNon-debugging symbols:\n")); | |
c5aa993b JM |
5125 | first = 0; |
5126 | } | |
b9c04fb2 | 5127 | print_msymbol_info (p.msymbol); |
c5aa993b | 5128 | } |
c906108c | 5129 | else |
c5aa993b JM |
5130 | { |
5131 | print_symbol_info (kind, | |
b9c04fb2 TT |
5132 | p.symbol, |
5133 | p.block, | |
c5aa993b | 5134 | last_filename); |
d01060f0 | 5135 | last_filename |
b9c04fb2 | 5136 | = symtab_to_filename_for_display (symbol_symtab (p.symbol)); |
c5aa993b | 5137 | } |
c906108c | 5138 | } |
c906108c SS |
5139 | } |
5140 | ||
4acfdd20 AB |
5141 | /* Structure to hold the values of the options used by the 'info variables' |
5142 | and 'info functions' commands. These correspond to the -q, -t, and -n | |
5143 | options. */ | |
5144 | ||
095252be | 5145 | struct info_vars_funcs_options |
4acfdd20 | 5146 | { |
491144b5 CB |
5147 | bool quiet = false; |
5148 | bool exclude_minsyms = false; | |
4acfdd20 AB |
5149 | char *type_regexp = nullptr; |
5150 | ||
095252be | 5151 | ~info_vars_funcs_options () |
4acfdd20 AB |
5152 | { |
5153 | xfree (type_regexp); | |
5154 | } | |
5155 | }; | |
5156 | ||
5157 | /* The options used by the 'info variables' and 'info functions' | |
5158 | commands. */ | |
5159 | ||
095252be AT |
5160 | static const gdb::option::option_def info_vars_funcs_options_defs[] = { |
5161 | gdb::option::boolean_option_def<info_vars_funcs_options> { | |
4acfdd20 | 5162 | "q", |
095252be | 5163 | [] (info_vars_funcs_options *opt) { return &opt->quiet; }, |
4acfdd20 AB |
5164 | nullptr, /* show_cmd_cb */ |
5165 | nullptr /* set_doc */ | |
5166 | }, | |
5167 | ||
095252be | 5168 | gdb::option::boolean_option_def<info_vars_funcs_options> { |
4acfdd20 | 5169 | "n", |
095252be | 5170 | [] (info_vars_funcs_options *opt) { return &opt->exclude_minsyms; }, |
4acfdd20 AB |
5171 | nullptr, /* show_cmd_cb */ |
5172 | nullptr /* set_doc */ | |
5173 | }, | |
5174 | ||
095252be | 5175 | gdb::option::string_option_def<info_vars_funcs_options> { |
4acfdd20 | 5176 | "t", |
095252be AT |
5177 | [] (info_vars_funcs_options *opt) { return &opt->type_regexp; |
5178 | }, | |
4acfdd20 AB |
5179 | nullptr, /* show_cmd_cb */ |
5180 | nullptr /* set_doc */ | |
5181 | } | |
5182 | }; | |
5183 | ||
5184 | /* Returns the option group used by 'info variables' and 'info | |
5185 | functions'. */ | |
5186 | ||
5187 | static gdb::option::option_def_group | |
095252be | 5188 | make_info_vars_funcs_options_def_group (info_vars_funcs_options *opts) |
4acfdd20 | 5189 | { |
095252be | 5190 | return {{info_vars_funcs_options_defs}, opts}; |
4acfdd20 AB |
5191 | } |
5192 | ||
5193 | /* Command completer for 'info variables' and 'info functions'. */ | |
5194 | ||
5195 | static void | |
095252be AT |
5196 | info_vars_funcs_command_completer (struct cmd_list_element *ignore, |
5197 | completion_tracker &tracker, | |
5198 | const char *text, const char * /* word */) | |
4acfdd20 AB |
5199 | { |
5200 | const auto group | |
095252be | 5201 | = make_info_vars_funcs_options_def_group (nullptr); |
4acfdd20 AB |
5202 | if (gdb::option::complete_options |
5203 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
5204 | return; | |
5205 | ||
5206 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
5207 | symbol_completer (ignore, tracker, text, word); | |
5208 | } | |
5209 | ||
b16507e0 AB |
5210 | /* Implement the 'info variables' command. */ |
5211 | ||
0b39b52e | 5212 | static void |
12615cba | 5213 | info_variables_command (const char *args, int from_tty) |
0b39b52e | 5214 | { |
095252be AT |
5215 | info_vars_funcs_options opts; |
5216 | auto grp = make_info_vars_funcs_options_def_group (&opts); | |
4acfdd20 AB |
5217 | gdb::option::process_options |
5218 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5219 | if (args != nullptr && *args == '\0') | |
5220 | args = nullptr; | |
b16507e0 | 5221 | |
4acfdd20 | 5222 | symtab_symbol_info (opts.quiet, opts.exclude_minsyms, args, VARIABLES_DOMAIN, |
b16507e0 | 5223 | opts.type_regexp, from_tty); |
0b39b52e TT |
5224 | } |
5225 | ||
b16507e0 | 5226 | /* Implement the 'info functions' command. */ |
12615cba | 5227 | |
c906108c | 5228 | static void |
12615cba | 5229 | info_functions_command (const char *args, int from_tty) |
c906108c | 5230 | { |
095252be AT |
5231 | info_vars_funcs_options opts; |
5232 | ||
5233 | auto grp = make_info_vars_funcs_options_def_group (&opts); | |
4acfdd20 AB |
5234 | gdb::option::process_options |
5235 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5236 | if (args != nullptr && *args == '\0') | |
5237 | args = nullptr; | |
b16507e0 | 5238 | |
4acfdd20 AB |
5239 | symtab_symbol_info (opts.quiet, opts.exclude_minsyms, args, |
5240 | FUNCTIONS_DOMAIN, opts.type_regexp, from_tty); | |
c906108c SS |
5241 | } |
5242 | ||
a8eab7c6 AB |
5243 | /* Holds the -q option for the 'info types' command. */ |
5244 | ||
5245 | struct info_types_options | |
5246 | { | |
491144b5 | 5247 | bool quiet = false; |
a8eab7c6 AB |
5248 | }; |
5249 | ||
5250 | /* The options used by the 'info types' command. */ | |
5251 | ||
5252 | static const gdb::option::option_def info_types_options_defs[] = { | |
5253 | gdb::option::boolean_option_def<info_types_options> { | |
5254 | "q", | |
5255 | [] (info_types_options *opt) { return &opt->quiet; }, | |
5256 | nullptr, /* show_cmd_cb */ | |
5257 | nullptr /* set_doc */ | |
5258 | } | |
5259 | }; | |
5260 | ||
5261 | /* Returns the option group used by 'info types'. */ | |
5262 | ||
5263 | static gdb::option::option_def_group | |
5264 | make_info_types_options_def_group (info_types_options *opts) | |
5265 | { | |
5266 | return {{info_types_options_defs}, opts}; | |
5267 | } | |
5268 | ||
5269 | /* Implement the 'info types' command. */ | |
357e46e7 | 5270 | |
c906108c | 5271 | static void |
a8eab7c6 | 5272 | info_types_command (const char *args, int from_tty) |
c906108c | 5273 | { |
a8eab7c6 AB |
5274 | info_types_options opts; |
5275 | ||
5276 | auto grp = make_info_types_options_def_group (&opts); | |
5277 | gdb::option::process_options | |
5278 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5279 | if (args != nullptr && *args == '\0') | |
5280 | args = nullptr; | |
4acfdd20 | 5281 | symtab_symbol_info (opts.quiet, false, args, TYPES_DOMAIN, NULL, from_tty); |
a8eab7c6 AB |
5282 | } |
5283 | ||
5284 | /* Command completer for 'info types' command. */ | |
5285 | ||
5286 | static void | |
5287 | info_types_command_completer (struct cmd_list_element *ignore, | |
5288 | completion_tracker &tracker, | |
5289 | const char *text, const char * /* word */) | |
5290 | { | |
5291 | const auto group | |
5292 | = make_info_types_options_def_group (nullptr); | |
5293 | if (gdb::option::complete_options | |
5294 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
5295 | return; | |
5296 | ||
5297 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
5298 | symbol_completer (ignore, tracker, text, word); | |
c906108c SS |
5299 | } |
5300 | ||
59c35742 AB |
5301 | /* Implement the 'info modules' command. */ |
5302 | ||
5303 | static void | |
5304 | info_modules_command (const char *args, int from_tty) | |
5305 | { | |
5306 | info_types_options opts; | |
5307 | ||
5308 | auto grp = make_info_types_options_def_group (&opts); | |
5309 | gdb::option::process_options | |
5310 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5311 | if (args != nullptr && *args == '\0') | |
5312 | args = nullptr; | |
5313 | symtab_symbol_info (opts.quiet, true, args, MODULES_DOMAIN, NULL, | |
5314 | from_tty); | |
5315 | } | |
5316 | ||
c906108c | 5317 | static void |
0b39b52e | 5318 | rbreak_command (const char *regexp, int from_tty) |
c906108c | 5319 | { |
c80049d3 | 5320 | std::string string; |
470c0b1c | 5321 | const char *file_name = nullptr; |
c906108c | 5322 | |
470c0b1c | 5323 | if (regexp != nullptr) |
8bd10a10 | 5324 | { |
0b39b52e | 5325 | const char *colon = strchr (regexp, ':'); |
433759f7 | 5326 | |
2c074f49 HD |
5327 | /* Ignore the colon if it is part of a Windows drive. */ |
5328 | if (HAS_DRIVE_SPEC (regexp) | |
5329 | && (regexp[2] == '/' || regexp[2] == '\\')) | |
5330 | colon = strchr (STRIP_DRIVE_SPEC (regexp), ':'); | |
5331 | ||
8bd10a10 CM |
5332 | if (colon && *(colon + 1) != ':') |
5333 | { | |
5334 | int colon_index; | |
96142726 | 5335 | char *local_name; |
8bd10a10 CM |
5336 | |
5337 | colon_index = colon - regexp; | |
224c3ddb | 5338 | local_name = (char *) alloca (colon_index + 1); |
96142726 TT |
5339 | memcpy (local_name, regexp, colon_index); |
5340 | local_name[colon_index--] = 0; | |
5341 | while (isspace (local_name[colon_index])) | |
5342 | local_name[colon_index--] = 0; | |
5343 | file_name = local_name; | |
529480d0 | 5344 | regexp = skip_spaces (colon + 1); |
8bd10a10 CM |
5345 | } |
5346 | } | |
5347 | ||
470c0b1c AB |
5348 | global_symbol_searcher spec (FUNCTIONS_DOMAIN, regexp); |
5349 | if (file_name != nullptr) | |
5350 | spec.filenames.push_back (file_name); | |
5351 | std::vector<symbol_search> symbols = spec.search (); | |
c906108c | 5352 | |
c80049d3 | 5353 | scoped_rbreak_breakpoints finalize; |
b9c04fb2 | 5354 | for (const symbol_search &p : symbols) |
c906108c | 5355 | { |
b9c04fb2 | 5356 | if (p.msymbol.minsym == NULL) |
c5aa993b | 5357 | { |
b9c04fb2 | 5358 | struct symtab *symtab = symbol_symtab (p.symbol); |
d01060f0 | 5359 | const char *fullname = symtab_to_fullname (symtab); |
05cba821 | 5360 | |
c80049d3 | 5361 | string = string_printf ("%s:'%s'", fullname, |
987012b8 | 5362 | p.symbol->linkage_name ()); |
c80049d3 | 5363 | break_command (&string[0], from_tty); |
c7dcbf88 | 5364 | print_symbol_info (FUNCTIONS_DOMAIN, p.symbol, p.block, NULL); |
c5aa993b | 5365 | } |
c906108c | 5366 | else |
c5aa993b | 5367 | { |
c80049d3 | 5368 | string = string_printf ("'%s'", |
c9d95fa3 | 5369 | p.msymbol.minsym->linkage_name ()); |
6214f497 | 5370 | |
c80049d3 | 5371 | break_command (&string[0], from_tty); |
c5aa993b | 5372 | printf_filtered ("<function, no debug info> %s;\n", |
c9d95fa3 | 5373 | p.msymbol.minsym->print_name ()); |
c5aa993b | 5374 | } |
c906108c | 5375 | } |
c906108c | 5376 | } |
c906108c | 5377 | \f |
c5aa993b | 5378 | |
c62446b1 | 5379 | /* Evaluate if SYMNAME matches LOOKUP_NAME. */ |
1976171a JK |
5380 | |
5381 | static int | |
c62446b1 | 5382 | compare_symbol_name (const char *symbol_name, language symbol_language, |
b5ec771e | 5383 | const lookup_name_info &lookup_name, |
b5ec771e PA |
5384 | completion_match_result &match_res) |
5385 | { | |
d4c2a405 | 5386 | const language_defn *lang = language_def (symbol_language); |
1976171a | 5387 | |
b5ec771e | 5388 | symbol_name_matcher_ftype *name_match |
c9debfb9 | 5389 | = lang->get_symbol_name_matcher (lookup_name); |
1976171a | 5390 | |
a207cff2 | 5391 | return name_match (symbol_name, lookup_name, &match_res); |
1976171a JK |
5392 | } |
5393 | ||
b5ec771e | 5394 | /* See symtab.h. */ |
c906108c | 5395 | |
e08bd6c5 | 5396 | bool |
eb3ff9a5 | 5397 | completion_list_add_name (completion_tracker &tracker, |
b5ec771e | 5398 | language symbol_language, |
eb3ff9a5 | 5399 | const char *symname, |
b5ec771e | 5400 | const lookup_name_info &lookup_name, |
0d5cff50 | 5401 | const char *text, const char *word) |
c906108c | 5402 | { |
b5ec771e PA |
5403 | completion_match_result &match_res |
5404 | = tracker.reset_completion_match_result (); | |
5405 | ||
c378eb4e | 5406 | /* Clip symbols that cannot match. */ |
c62446b1 | 5407 | if (!compare_symbol_name (symname, symbol_language, lookup_name, match_res)) |
e08bd6c5 | 5408 | return false; |
c906108c | 5409 | |
b5ec771e PA |
5410 | /* Refresh SYMNAME from the match string. It's potentially |
5411 | different depending on language. (E.g., on Ada, the match may be | |
5412 | the encoded symbol name wrapped in "<>"). */ | |
5413 | symname = match_res.match.match (); | |
5414 | gdb_assert (symname != NULL); | |
5415 | ||
c906108c | 5416 | /* We have a match for a completion, so add SYMNAME to the current list |
c378eb4e | 5417 | of matches. Note that the name is moved to freshly malloc'd space. */ |
c906108c SS |
5418 | |
5419 | { | |
60a20c19 PA |
5420 | gdb::unique_xmalloc_ptr<char> completion |
5421 | = make_completion_match_str (symname, text, word); | |
ef0b411a | 5422 | |
a207cff2 PA |
5423 | /* Here we pass the match-for-lcd object to add_completion. Some |
5424 | languages match the user text against substrings of symbol | |
5425 | names in some cases. E.g., in C++, "b push_ba" completes to | |
5426 | "std::vector::push_back", "std::string::push_back", etc., and | |
5427 | in this case we want the completion lowest common denominator | |
5428 | to be "push_back" instead of "std::". */ | |
5429 | tracker.add_completion (std::move (completion), | |
a22ecf70 | 5430 | &match_res.match_for_lcd, text, word); |
c906108c | 5431 | } |
e08bd6c5 PA |
5432 | |
5433 | return true; | |
c906108c SS |
5434 | } |
5435 | ||
6da67eb1 PA |
5436 | /* completion_list_add_name wrapper for struct symbol. */ |
5437 | ||
5438 | static void | |
eb3ff9a5 PA |
5439 | completion_list_add_symbol (completion_tracker &tracker, |
5440 | symbol *sym, | |
b5ec771e | 5441 | const lookup_name_info &lookup_name, |
6da67eb1 PA |
5442 | const char *text, const char *word) |
5443 | { | |
e08bd6c5 PA |
5444 | if (!completion_list_add_name (tracker, sym->language (), |
5445 | sym->natural_name (), | |
5446 | lookup_name, text, word)) | |
5447 | return; | |
19a2740f AB |
5448 | |
5449 | /* C++ function symbols include the parameters within both the msymbol | |
5450 | name and the symbol name. The problem is that the msymbol name will | |
5451 | describe the parameters in the most basic way, with typedefs stripped | |
5452 | out, while the symbol name will represent the types as they appear in | |
5453 | the program. This means we will see duplicate entries in the | |
5454 | completion tracker. The following converts the symbol name back to | |
5455 | the msymbol name and removes the msymbol name from the completion | |
5456 | tracker. */ | |
5457 | if (sym->language () == language_cplus | |
5458 | && SYMBOL_DOMAIN (sym) == VAR_DOMAIN | |
5459 | && SYMBOL_CLASS (sym) == LOC_BLOCK) | |
5460 | { | |
5461 | /* The call to canonicalize returns the empty string if the input | |
5462 | string is already in canonical form, thanks to this we don't | |
5463 | remove the symbol we just added above. */ | |
596dc4ad | 5464 | gdb::unique_xmalloc_ptr<char> str |
19a2740f | 5465 | = cp_canonicalize_string_no_typedefs (sym->natural_name ()); |
596dc4ad TT |
5466 | if (str != nullptr) |
5467 | tracker.remove_completion (str.get ()); | |
19a2740f | 5468 | } |
6da67eb1 PA |
5469 | } |
5470 | ||
5471 | /* completion_list_add_name wrapper for struct minimal_symbol. */ | |
5472 | ||
5473 | static void | |
eb3ff9a5 PA |
5474 | completion_list_add_msymbol (completion_tracker &tracker, |
5475 | minimal_symbol *sym, | |
b5ec771e | 5476 | const lookup_name_info &lookup_name, |
6da67eb1 PA |
5477 | const char *text, const char *word) |
5478 | { | |
c1b5c1eb | 5479 | completion_list_add_name (tracker, sym->language (), |
c9d95fa3 | 5480 | sym->natural_name (), |
1b026119 | 5481 | lookup_name, text, word); |
6da67eb1 PA |
5482 | } |
5483 | ||
b5ec771e | 5484 | |
69636828 AF |
5485 | /* ObjC: In case we are completing on a selector, look as the msymbol |
5486 | again and feed all the selectors into the mill. */ | |
5487 | ||
5488 | static void | |
eb3ff9a5 PA |
5489 | completion_list_objc_symbol (completion_tracker &tracker, |
5490 | struct minimal_symbol *msymbol, | |
b5ec771e | 5491 | const lookup_name_info &lookup_name, |
0d5cff50 | 5492 | const char *text, const char *word) |
69636828 AF |
5493 | { |
5494 | static char *tmp = NULL; | |
5495 | static unsigned int tmplen = 0; | |
9af17804 | 5496 | |
0d5cff50 | 5497 | const char *method, *category, *selector; |
69636828 | 5498 | char *tmp2 = NULL; |
9af17804 | 5499 | |
c9d95fa3 | 5500 | method = msymbol->natural_name (); |
69636828 AF |
5501 | |
5502 | /* Is it a method? */ | |
5503 | if ((method[0] != '-') && (method[0] != '+')) | |
5504 | return; | |
5505 | ||
1b026119 | 5506 | if (text[0] == '[') |
69636828 | 5507 | /* Complete on shortened method method. */ |
b5ec771e PA |
5508 | completion_list_add_name (tracker, language_objc, |
5509 | method + 1, | |
5510 | lookup_name, | |
1b026119 | 5511 | text, word); |
9af17804 | 5512 | |
69636828 AF |
5513 | while ((strlen (method) + 1) >= tmplen) |
5514 | { | |
5515 | if (tmplen == 0) | |
5516 | tmplen = 1024; | |
5517 | else | |
5518 | tmplen *= 2; | |
224c3ddb | 5519 | tmp = (char *) xrealloc (tmp, tmplen); |
69636828 AF |
5520 | } |
5521 | selector = strchr (method, ' '); | |
5522 | if (selector != NULL) | |
5523 | selector++; | |
9af17804 | 5524 | |
69636828 | 5525 | category = strchr (method, '('); |
9af17804 | 5526 | |
69636828 AF |
5527 | if ((category != NULL) && (selector != NULL)) |
5528 | { | |
5529 | memcpy (tmp, method, (category - method)); | |
5530 | tmp[category - method] = ' '; | |
5531 | memcpy (tmp + (category - method) + 1, selector, strlen (selector) + 1); | |
b5ec771e | 5532 | completion_list_add_name (tracker, language_objc, tmp, |
1b026119 PA |
5533 | lookup_name, text, word); |
5534 | if (text[0] == '[') | |
b5ec771e | 5535 | completion_list_add_name (tracker, language_objc, tmp + 1, |
1b026119 | 5536 | lookup_name, text, word); |
69636828 | 5537 | } |
9af17804 | 5538 | |
69636828 AF |
5539 | if (selector != NULL) |
5540 | { | |
5541 | /* Complete on selector only. */ | |
5542 | strcpy (tmp, selector); | |
5543 | tmp2 = strchr (tmp, ']'); | |
5544 | if (tmp2 != NULL) | |
5545 | *tmp2 = '\0'; | |
9af17804 | 5546 | |
b5ec771e | 5547 | completion_list_add_name (tracker, language_objc, tmp, |
1b026119 | 5548 | lookup_name, text, word); |
69636828 AF |
5549 | } |
5550 | } | |
5551 | ||
5552 | /* Break the non-quoted text based on the characters which are in | |
c378eb4e | 5553 | symbols. FIXME: This should probably be language-specific. */ |
69636828 | 5554 | |
6f937416 PA |
5555 | static const char * |
5556 | language_search_unquoted_string (const char *text, const char *p) | |
69636828 AF |
5557 | { |
5558 | for (; p > text; --p) | |
5559 | { | |
5560 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0') | |
5561 | continue; | |
5562 | else | |
5563 | { | |
5564 | if ((current_language->la_language == language_objc)) | |
5565 | { | |
c378eb4e | 5566 | if (p[-1] == ':') /* Might be part of a method name. */ |
69636828 AF |
5567 | continue; |
5568 | else if (p[-1] == '[' && (p[-2] == '-' || p[-2] == '+')) | |
c378eb4e | 5569 | p -= 2; /* Beginning of a method name. */ |
69636828 | 5570 | else if (p[-1] == ' ' || p[-1] == '(' || p[-1] == ')') |
c378eb4e | 5571 | { /* Might be part of a method name. */ |
6f937416 | 5572 | const char *t = p; |
69636828 AF |
5573 | |
5574 | /* Seeing a ' ' or a '(' is not conclusive evidence | |
5575 | that we are in the middle of a method name. However, | |
5576 | finding "-[" or "+[" should be pretty un-ambiguous. | |
5577 | Unfortunately we have to find it now to decide. */ | |
5578 | ||
5579 | while (t > text) | |
5580 | if (isalnum (t[-1]) || t[-1] == '_' || | |
5581 | t[-1] == ' ' || t[-1] == ':' || | |
5582 | t[-1] == '(' || t[-1] == ')') | |
5583 | --t; | |
5584 | else | |
5585 | break; | |
5586 | ||
5587 | if (t[-1] == '[' && (t[-2] == '-' || t[-2] == '+')) | |
c378eb4e MS |
5588 | p = t - 2; /* Method name detected. */ |
5589 | /* Else we leave with p unchanged. */ | |
69636828 AF |
5590 | } |
5591 | } | |
5592 | break; | |
5593 | } | |
5594 | } | |
5595 | return p; | |
5596 | } | |
5597 | ||
edb3359d | 5598 | static void |
eb3ff9a5 PA |
5599 | completion_list_add_fields (completion_tracker &tracker, |
5600 | struct symbol *sym, | |
b5ec771e | 5601 | const lookup_name_info &lookup_name, |
eb3ff9a5 | 5602 | const char *text, const char *word) |
edb3359d DJ |
5603 | { |
5604 | if (SYMBOL_CLASS (sym) == LOC_TYPEDEF) | |
5605 | { | |
5606 | struct type *t = SYMBOL_TYPE (sym); | |
78134374 | 5607 | enum type_code c = t->code (); |
edb3359d DJ |
5608 | int j; |
5609 | ||
5610 | if (c == TYPE_CODE_UNION || c == TYPE_CODE_STRUCT) | |
1f704f76 | 5611 | for (j = TYPE_N_BASECLASSES (t); j < t->num_fields (); j++) |
edb3359d | 5612 | if (TYPE_FIELD_NAME (t, j)) |
c1b5c1eb | 5613 | completion_list_add_name (tracker, sym->language (), |
b5ec771e | 5614 | TYPE_FIELD_NAME (t, j), |
1b026119 | 5615 | lookup_name, text, word); |
edb3359d DJ |
5616 | } |
5617 | } | |
5618 | ||
f9d67a22 PA |
5619 | /* See symtab.h. */ |
5620 | ||
5621 | bool | |
5622 | symbol_is_function_or_method (symbol *sym) | |
5623 | { | |
78134374 | 5624 | switch (SYMBOL_TYPE (sym)->code ()) |
f9d67a22 PA |
5625 | { |
5626 | case TYPE_CODE_FUNC: | |
5627 | case TYPE_CODE_METHOD: | |
5628 | return true; | |
5629 | default: | |
5630 | return false; | |
5631 | } | |
5632 | } | |
5633 | ||
5634 | /* See symtab.h. */ | |
5635 | ||
5636 | bool | |
5637 | symbol_is_function_or_method (minimal_symbol *msymbol) | |
5638 | { | |
5639 | switch (MSYMBOL_TYPE (msymbol)) | |
5640 | { | |
5641 | case mst_text: | |
5642 | case mst_text_gnu_ifunc: | |
5643 | case mst_solib_trampoline: | |
5644 | case mst_file_text: | |
5645 | return true; | |
5646 | default: | |
5647 | return false; | |
5648 | } | |
5649 | } | |
5650 | ||
ca31ab1d PA |
5651 | /* See symtab.h. */ |
5652 | ||
5653 | bound_minimal_symbol | |
5654 | find_gnu_ifunc (const symbol *sym) | |
5655 | { | |
5656 | if (SYMBOL_CLASS (sym) != LOC_BLOCK) | |
5657 | return {}; | |
5658 | ||
987012b8 | 5659 | lookup_name_info lookup_name (sym->search_name (), |
ca31ab1d PA |
5660 | symbol_name_match_type::SEARCH_NAME); |
5661 | struct objfile *objfile = symbol_objfile (sym); | |
5662 | ||
2b1ffcfd | 5663 | CORE_ADDR address = BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (sym)); |
ca31ab1d PA |
5664 | minimal_symbol *ifunc = NULL; |
5665 | ||
5666 | iterate_over_minimal_symbols (objfile, lookup_name, | |
5667 | [&] (minimal_symbol *minsym) | |
5668 | { | |
5669 | if (MSYMBOL_TYPE (minsym) == mst_text_gnu_ifunc | |
f50776aa | 5670 | || MSYMBOL_TYPE (minsym) == mst_data_gnu_ifunc) |
ca31ab1d | 5671 | { |
f50776aa PA |
5672 | CORE_ADDR msym_addr = MSYMBOL_VALUE_ADDRESS (objfile, minsym); |
5673 | if (MSYMBOL_TYPE (minsym) == mst_data_gnu_ifunc) | |
5674 | { | |
08feed99 | 5675 | struct gdbarch *gdbarch = objfile->arch (); |
328d42d8 SM |
5676 | msym_addr = gdbarch_convert_from_func_ptr_addr |
5677 | (gdbarch, msym_addr, current_inferior ()->top_target ()); | |
f50776aa PA |
5678 | } |
5679 | if (msym_addr == address) | |
5680 | { | |
5681 | ifunc = minsym; | |
5682 | return true; | |
5683 | } | |
ca31ab1d PA |
5684 | } |
5685 | return false; | |
5686 | }); | |
5687 | ||
5688 | if (ifunc != NULL) | |
5689 | return {ifunc, objfile}; | |
5690 | return {}; | |
5691 | } | |
5692 | ||
e11c72c7 GB |
5693 | /* Add matching symbols from SYMTAB to the current completion list. */ |
5694 | ||
5695 | static void | |
5696 | add_symtab_completions (struct compunit_symtab *cust, | |
eb3ff9a5 | 5697 | completion_tracker &tracker, |
f9d67a22 | 5698 | complete_symbol_mode mode, |
b5ec771e | 5699 | const lookup_name_info &lookup_name, |
e11c72c7 GB |
5700 | const char *text, const char *word, |
5701 | enum type_code code) | |
5702 | { | |
5703 | struct symbol *sym; | |
5704 | const struct block *b; | |
5705 | struct block_iterator iter; | |
5706 | int i; | |
5707 | ||
ff6fa247 GB |
5708 | if (cust == NULL) |
5709 | return; | |
5710 | ||
e11c72c7 GB |
5711 | for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++) |
5712 | { | |
5713 | QUIT; | |
5714 | b = BLOCKVECTOR_BLOCK (COMPUNIT_BLOCKVECTOR (cust), i); | |
5715 | ALL_BLOCK_SYMBOLS (b, iter, sym) | |
5716 | { | |
f9d67a22 PA |
5717 | if (completion_skip_symbol (mode, sym)) |
5718 | continue; | |
5719 | ||
e11c72c7 GB |
5720 | if (code == TYPE_CODE_UNDEF |
5721 | || (SYMBOL_DOMAIN (sym) == STRUCT_DOMAIN | |
78134374 | 5722 | && SYMBOL_TYPE (sym)->code () == code)) |
eb3ff9a5 | 5723 | completion_list_add_symbol (tracker, sym, |
b5ec771e | 5724 | lookup_name, |
e11c72c7 GB |
5725 | text, word); |
5726 | } | |
5727 | } | |
5728 | } | |
5729 | ||
eb3ff9a5 PA |
5730 | void |
5731 | default_collect_symbol_completion_matches_break_on | |
b5ec771e PA |
5732 | (completion_tracker &tracker, complete_symbol_mode mode, |
5733 | symbol_name_match_type name_match_type, | |
eb3ff9a5 PA |
5734 | const char *text, const char *word, |
5735 | const char *break_on, enum type_code code) | |
c906108c | 5736 | { |
41d27058 JB |
5737 | /* Problem: All of the symbols have to be copied because readline |
5738 | frees them. I'm not going to worry about this; hopefully there | |
5739 | won't be that many. */ | |
5740 | ||
de4f826b | 5741 | struct symbol *sym; |
3977b71f | 5742 | const struct block *b; |
edb3359d | 5743 | const struct block *surrounding_static_block, *surrounding_global_block; |
8157b174 | 5744 | struct block_iterator iter; |
c906108c | 5745 | /* The symbol we are completing on. Points in same buffer as text. */ |
6f937416 | 5746 | const char *sym_text; |
c906108c | 5747 | |
41d27058 | 5748 | /* Now look for the symbol we are supposed to complete on. */ |
c6756f62 PA |
5749 | if (mode == complete_symbol_mode::LINESPEC) |
5750 | sym_text = text; | |
5751 | else | |
01add95b SM |
5752 | { |
5753 | const char *p; | |
5754 | char quote_found; | |
5755 | const char *quote_pos = NULL; | |
c906108c | 5756 | |
01add95b SM |
5757 | /* First see if this is a quoted string. */ |
5758 | quote_found = '\0'; | |
5759 | for (p = text; *p != '\0'; ++p) | |
5760 | { | |
5761 | if (quote_found != '\0') | |
5762 | { | |
5763 | if (*p == quote_found) | |
5764 | /* Found close quote. */ | |
5765 | quote_found = '\0'; | |
5766 | else if (*p == '\\' && p[1] == quote_found) | |
5767 | /* A backslash followed by the quote character | |
5768 | doesn't end the string. */ | |
5769 | ++p; | |
5770 | } | |
5771 | else if (*p == '\'' || *p == '"') | |
5772 | { | |
5773 | quote_found = *p; | |
5774 | quote_pos = p; | |
5775 | } | |
5776 | } | |
5777 | if (quote_found == '\'') | |
5778 | /* A string within single quotes can be a symbol, so complete on it. */ | |
5779 | sym_text = quote_pos + 1; | |
5780 | else if (quote_found == '"') | |
5781 | /* A double-quoted string is never a symbol, nor does it make sense | |
5782 | to complete it any other way. */ | |
5783 | { | |
5784 | return; | |
5785 | } | |
5786 | else | |
5787 | { | |
5788 | /* It is not a quoted string. Break it based on the characters | |
5789 | which are in symbols. */ | |
5790 | while (p > text) | |
5791 | { | |
5792 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0' | |
5793 | || p[-1] == ':' || strchr (break_on, p[-1]) != NULL) | |
5794 | --p; | |
5795 | else | |
5796 | break; | |
5797 | } | |
5798 | sym_text = p; | |
5799 | } | |
5800 | } | |
c906108c | 5801 | |
1b026119 | 5802 | lookup_name_info lookup_name (sym_text, name_match_type, true); |
b5ec771e | 5803 | |
c906108c SS |
5804 | /* At this point scan through the misc symbol vectors and add each |
5805 | symbol you find to the list. Eventually we want to ignore | |
5806 | anything that isn't a text symbol (everything else will be | |
e11c72c7 | 5807 | handled by the psymtab code below). */ |
c906108c | 5808 | |
2f68a895 TT |
5809 | if (code == TYPE_CODE_UNDEF) |
5810 | { | |
2030c079 | 5811 | for (objfile *objfile : current_program_space->objfiles ()) |
2f68a895 | 5812 | { |
7932255d | 5813 | for (minimal_symbol *msymbol : objfile->msymbols ()) |
5325b9bf TT |
5814 | { |
5815 | QUIT; | |
9af17804 | 5816 | |
5325b9bf TT |
5817 | if (completion_skip_symbol (mode, msymbol)) |
5818 | continue; | |
f9d67a22 | 5819 | |
5325b9bf TT |
5820 | completion_list_add_msymbol (tracker, msymbol, lookup_name, |
5821 | sym_text, word); | |
eb3ff9a5 | 5822 | |
5325b9bf TT |
5823 | completion_list_objc_symbol (tracker, msymbol, lookup_name, |
5824 | sym_text, word); | |
5825 | } | |
2f68a895 TT |
5826 | } |
5827 | } | |
c906108c | 5828 | |
e11c72c7 | 5829 | /* Add completions for all currently loaded symbol tables. */ |
2030c079 | 5830 | for (objfile *objfile : current_program_space->objfiles ()) |
d8aeb77f | 5831 | { |
b669c953 | 5832 | for (compunit_symtab *cust : objfile->compunits ()) |
d8aeb77f TT |
5833 | add_symtab_completions (cust, tracker, mode, lookup_name, |
5834 | sym_text, word, code); | |
5835 | } | |
e11c72c7 | 5836 | |
14bc53a8 PA |
5837 | /* Look through the partial symtabs for all symbols which begin by |
5838 | matching SYM_TEXT. Expand all CUs that you find to the list. */ | |
5839 | expand_symtabs_matching (NULL, | |
b5ec771e PA |
5840 | lookup_name, |
5841 | NULL, | |
14bc53a8 PA |
5842 | [&] (compunit_symtab *symtab) /* expansion notify */ |
5843 | { | |
5844 | add_symtab_completions (symtab, | |
f9d67a22 | 5845 | tracker, mode, lookup_name, |
1b026119 | 5846 | sym_text, word, code); |
df35e626 | 5847 | return true; |
14bc53a8 | 5848 | }, |
03a8ea51 | 5849 | SEARCH_GLOBAL_BLOCK | SEARCH_STATIC_BLOCK, |
14bc53a8 | 5850 | ALL_DOMAIN); |
e11c72c7 | 5851 | |
c906108c | 5852 | /* Search upwards from currently selected frame (so that we can |
edb3359d DJ |
5853 | complete on local vars). Also catch fields of types defined in |
5854 | this places which match our text string. Only complete on types | |
c378eb4e | 5855 | visible from current context. */ |
edb3359d DJ |
5856 | |
5857 | b = get_selected_block (0); | |
5858 | surrounding_static_block = block_static_block (b); | |
5859 | surrounding_global_block = block_global_block (b); | |
5860 | if (surrounding_static_block != NULL) | |
5861 | while (b != surrounding_static_block) | |
5862 | { | |
5863 | QUIT; | |
c906108c | 5864 | |
edb3359d DJ |
5865 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
5866 | { | |
2f68a895 TT |
5867 | if (code == TYPE_CODE_UNDEF) |
5868 | { | |
b5ec771e | 5869 | completion_list_add_symbol (tracker, sym, lookup_name, |
1b026119 | 5870 | sym_text, word); |
b5ec771e | 5871 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 5872 | sym_text, word); |
2f68a895 TT |
5873 | } |
5874 | else if (SYMBOL_DOMAIN (sym) == STRUCT_DOMAIN | |
78134374 | 5875 | && SYMBOL_TYPE (sym)->code () == code) |
b5ec771e | 5876 | completion_list_add_symbol (tracker, sym, lookup_name, |
1b026119 | 5877 | sym_text, word); |
edb3359d | 5878 | } |
c5aa993b | 5879 | |
edb3359d DJ |
5880 | /* Stop when we encounter an enclosing function. Do not stop for |
5881 | non-inlined functions - the locals of the enclosing function | |
5882 | are in scope for a nested function. */ | |
5883 | if (BLOCK_FUNCTION (b) != NULL && block_inlined_p (b)) | |
5884 | break; | |
5885 | b = BLOCK_SUPERBLOCK (b); | |
5886 | } | |
c906108c | 5887 | |
edb3359d | 5888 | /* Add fields from the file's types; symbols will be added below. */ |
c906108c | 5889 | |
2f68a895 TT |
5890 | if (code == TYPE_CODE_UNDEF) |
5891 | { | |
5892 | if (surrounding_static_block != NULL) | |
5893 | ALL_BLOCK_SYMBOLS (surrounding_static_block, iter, sym) | |
b5ec771e | 5894 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 5895 | sym_text, word); |
edb3359d | 5896 | |
2f68a895 TT |
5897 | if (surrounding_global_block != NULL) |
5898 | ALL_BLOCK_SYMBOLS (surrounding_global_block, iter, sym) | |
b5ec771e | 5899 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 5900 | sym_text, word); |
2f68a895 | 5901 | } |
c906108c | 5902 | |
2f68a895 TT |
5903 | /* Skip macros if we are completing a struct tag -- arguable but |
5904 | usually what is expected. */ | |
1ac14a04 | 5905 | if (current_language->macro_expansion () == macro_expansion_c |
2f68a895 | 5906 | && code == TYPE_CODE_UNDEF) |
9a044a89 | 5907 | { |
f6c2623e | 5908 | gdb::unique_xmalloc_ptr<struct macro_scope> scope; |
9a044a89 | 5909 | |
14bc53a8 PA |
5910 | /* This adds a macro's name to the current completion list. */ |
5911 | auto add_macro_name = [&] (const char *macro_name, | |
5912 | const macro_definition *, | |
5913 | macro_source_file *, | |
5914 | int) | |
5915 | { | |
1b026119 PA |
5916 | completion_list_add_name (tracker, language_c, macro_name, |
5917 | lookup_name, sym_text, word); | |
14bc53a8 PA |
5918 | }; |
5919 | ||
9a044a89 TT |
5920 | /* Add any macros visible in the default scope. Note that this |
5921 | may yield the occasional wrong result, because an expression | |
5922 | might be evaluated in a scope other than the default. For | |
5923 | example, if the user types "break file:line if <TAB>", the | |
5924 | resulting expression will be evaluated at "file:line" -- but | |
5925 | at there does not seem to be a way to detect this at | |
5926 | completion time. */ | |
5927 | scope = default_macro_scope (); | |
5928 | if (scope) | |
f6c2623e TT |
5929 | macro_for_each_in_scope (scope->file, scope->line, |
5930 | add_macro_name); | |
9a044a89 TT |
5931 | |
5932 | /* User-defined macros are always visible. */ | |
14bc53a8 | 5933 | macro_for_each (macro_user_macros, add_macro_name); |
9a044a89 | 5934 | } |
ef0b411a GB |
5935 | } |
5936 | ||
eb3ff9a5 PA |
5937 | /* Collect all symbols (regardless of class) which begin by matching |
5938 | TEXT. */ | |
41d27058 | 5939 | |
eb3ff9a5 PA |
5940 | void |
5941 | collect_symbol_completion_matches (completion_tracker &tracker, | |
c6756f62 | 5942 | complete_symbol_mode mode, |
b5ec771e | 5943 | symbol_name_match_type name_match_type, |
eb3ff9a5 | 5944 | const char *text, const char *word) |
41d27058 | 5945 | { |
7e56227d AB |
5946 | current_language->collect_symbol_completion_matches (tracker, mode, |
5947 | name_match_type, | |
5948 | text, word, | |
5949 | TYPE_CODE_UNDEF); | |
2f68a895 TT |
5950 | } |
5951 | ||
eb3ff9a5 PA |
5952 | /* Like collect_symbol_completion_matches, but only collect |
5953 | STRUCT_DOMAIN symbols whose type code is CODE. */ | |
2f68a895 | 5954 | |
eb3ff9a5 PA |
5955 | void |
5956 | collect_symbol_completion_matches_type (completion_tracker &tracker, | |
5957 | const char *text, const char *word, | |
5958 | enum type_code code) | |
2f68a895 | 5959 | { |
c6756f62 | 5960 | complete_symbol_mode mode = complete_symbol_mode::EXPRESSION; |
b5ec771e | 5961 | symbol_name_match_type name_match_type = symbol_name_match_type::EXPRESSION; |
c6756f62 | 5962 | |
2f68a895 TT |
5963 | gdb_assert (code == TYPE_CODE_UNION |
5964 | || code == TYPE_CODE_STRUCT | |
2f68a895 | 5965 | || code == TYPE_CODE_ENUM); |
7e56227d AB |
5966 | current_language->collect_symbol_completion_matches (tracker, mode, |
5967 | name_match_type, | |
5968 | text, word, code); | |
41d27058 JB |
5969 | } |
5970 | ||
eb3ff9a5 PA |
5971 | /* Like collect_symbol_completion_matches, but collects a list of |
5972 | symbols defined in all source files named SRCFILE. */ | |
c94fdfd0 | 5973 | |
eb3ff9a5 PA |
5974 | void |
5975 | collect_file_symbol_completion_matches (completion_tracker &tracker, | |
c6756f62 | 5976 | complete_symbol_mode mode, |
b5ec771e | 5977 | symbol_name_match_type name_match_type, |
eb3ff9a5 PA |
5978 | const char *text, const char *word, |
5979 | const char *srcfile) | |
c94fdfd0 | 5980 | { |
c94fdfd0 | 5981 | /* The symbol we are completing on. Points in same buffer as text. */ |
6f937416 | 5982 | const char *sym_text; |
c94fdfd0 EZ |
5983 | |
5984 | /* Now look for the symbol we are supposed to complete on. | |
5985 | FIXME: This should be language-specific. */ | |
c6756f62 PA |
5986 | if (mode == complete_symbol_mode::LINESPEC) |
5987 | sym_text = text; | |
5988 | else | |
01add95b SM |
5989 | { |
5990 | const char *p; | |
5991 | char quote_found; | |
5992 | const char *quote_pos = NULL; | |
c94fdfd0 | 5993 | |
01add95b SM |
5994 | /* First see if this is a quoted string. */ |
5995 | quote_found = '\0'; | |
5996 | for (p = text; *p != '\0'; ++p) | |
5997 | { | |
5998 | if (quote_found != '\0') | |
5999 | { | |
6000 | if (*p == quote_found) | |
6001 | /* Found close quote. */ | |
6002 | quote_found = '\0'; | |
6003 | else if (*p == '\\' && p[1] == quote_found) | |
6004 | /* A backslash followed by the quote character | |
6005 | doesn't end the string. */ | |
6006 | ++p; | |
6007 | } | |
6008 | else if (*p == '\'' || *p == '"') | |
6009 | { | |
6010 | quote_found = *p; | |
6011 | quote_pos = p; | |
6012 | } | |
6013 | } | |
6014 | if (quote_found == '\'') | |
6015 | /* A string within single quotes can be a symbol, so complete on it. */ | |
6016 | sym_text = quote_pos + 1; | |
6017 | else if (quote_found == '"') | |
6018 | /* A double-quoted string is never a symbol, nor does it make sense | |
6019 | to complete it any other way. */ | |
6020 | { | |
6021 | return; | |
6022 | } | |
6023 | else | |
6024 | { | |
6025 | /* Not a quoted string. */ | |
6026 | sym_text = language_search_unquoted_string (text, p); | |
6027 | } | |
6028 | } | |
c94fdfd0 | 6029 | |
1b026119 | 6030 | lookup_name_info lookup_name (sym_text, name_match_type, true); |
b5ec771e | 6031 | |
8f14146e PA |
6032 | /* Go through symtabs for SRCFILE and check the externs and statics |
6033 | for symbols which match. */ | |
6034 | iterate_over_symtabs (srcfile, [&] (symtab *s) | |
c94fdfd0 | 6035 | { |
8f14146e | 6036 | add_symtab_completions (SYMTAB_COMPUNIT (s), |
f9d67a22 | 6037 | tracker, mode, lookup_name, |
1b026119 | 6038 | sym_text, word, TYPE_CODE_UNDEF); |
8f14146e PA |
6039 | return false; |
6040 | }); | |
e27852be DE |
6041 | } |
6042 | ||
c94fdfd0 EZ |
6043 | /* A helper function for make_source_files_completion_list. It adds |
6044 | another file name to a list of possible completions, growing the | |
6045 | list as necessary. */ | |
6046 | ||
6047 | static void | |
6f937416 | 6048 | add_filename_to_list (const char *fname, const char *text, const char *word, |
eb3ff9a5 | 6049 | completion_list *list) |
c94fdfd0 | 6050 | { |
60a20c19 | 6051 | list->emplace_back (make_completion_match_str (fname, text, word)); |
c94fdfd0 EZ |
6052 | } |
6053 | ||
6054 | static int | |
6055 | not_interesting_fname (const char *fname) | |
6056 | { | |
6057 | static const char *illegal_aliens[] = { | |
6058 | "_globals_", /* inserted by coff_symtab_read */ | |
6059 | NULL | |
6060 | }; | |
6061 | int i; | |
6062 | ||
6063 | for (i = 0; illegal_aliens[i]; i++) | |
6064 | { | |
0ba1096a | 6065 | if (filename_cmp (fname, illegal_aliens[i]) == 0) |
c94fdfd0 EZ |
6066 | return 1; |
6067 | } | |
6068 | return 0; | |
6069 | } | |
6070 | ||
f4655dee | 6071 | /* An object of this type is passed as the callback argument to |
ccefe4c4 TT |
6072 | map_partial_symbol_filenames. */ |
6073 | struct add_partial_filename_data | |
6074 | { | |
9fdc877b | 6075 | struct filename_seen_cache *filename_seen_cache; |
6f937416 PA |
6076 | const char *text; |
6077 | const char *word; | |
ccefe4c4 | 6078 | int text_len; |
eb3ff9a5 | 6079 | completion_list *list; |
f4655dee TT |
6080 | |
6081 | void operator() (const char *filename, const char *fullname); | |
ccefe4c4 TT |
6082 | }; |
6083 | ||
6084 | /* A callback for map_partial_symbol_filenames. */ | |
eca864fe | 6085 | |
f4655dee TT |
6086 | void |
6087 | add_partial_filename_data::operator() (const char *filename, | |
6088 | const char *fullname) | |
ccefe4c4 | 6089 | { |
ccefe4c4 TT |
6090 | if (not_interesting_fname (filename)) |
6091 | return; | |
f4655dee TT |
6092 | if (!filename_seen_cache->seen (filename) |
6093 | && filename_ncmp (filename, text, text_len) == 0) | |
ccefe4c4 TT |
6094 | { |
6095 | /* This file matches for a completion; add it to the | |
6096 | current list of matches. */ | |
f4655dee | 6097 | add_filename_to_list (filename, text, word, list); |
ccefe4c4 TT |
6098 | } |
6099 | else | |
6100 | { | |
6101 | const char *base_name = lbasename (filename); | |
433759f7 | 6102 | |
ccefe4c4 | 6103 | if (base_name != filename |
f4655dee TT |
6104 | && !filename_seen_cache->seen (base_name) |
6105 | && filename_ncmp (base_name, text, text_len) == 0) | |
6106 | add_filename_to_list (base_name, text, word, list); | |
ccefe4c4 TT |
6107 | } |
6108 | } | |
6109 | ||
eb3ff9a5 | 6110 | /* Return a list of all source files whose names begin with matching |
49c4e619 | 6111 | TEXT. The file names are looked up in the symbol tables of this |
eb3ff9a5 | 6112 | program. */ |
c94fdfd0 | 6113 | |
eb3ff9a5 | 6114 | completion_list |
6f937416 | 6115 | make_source_files_completion_list (const char *text, const char *word) |
c94fdfd0 | 6116 | { |
c94fdfd0 | 6117 | size_t text_len = strlen (text); |
eb3ff9a5 | 6118 | completion_list list; |
31889e00 | 6119 | const char *base_name; |
ccefe4c4 | 6120 | struct add_partial_filename_data datum; |
c94fdfd0 | 6121 | |
c94fdfd0 EZ |
6122 | if (!have_full_symbols () && !have_partial_symbols ()) |
6123 | return list; | |
6124 | ||
bbf2f4df | 6125 | filename_seen_cache filenames_seen; |
9fdc877b | 6126 | |
2030c079 | 6127 | for (objfile *objfile : current_program_space->objfiles ()) |
c94fdfd0 | 6128 | { |
b669c953 | 6129 | for (compunit_symtab *cu : objfile->compunits ()) |
c94fdfd0 | 6130 | { |
8b31193a TT |
6131 | for (symtab *s : compunit_filetabs (cu)) |
6132 | { | |
6133 | if (not_interesting_fname (s->filename)) | |
6134 | continue; | |
6135 | if (!filenames_seen.seen (s->filename) | |
6136 | && filename_ncmp (s->filename, text, text_len) == 0) | |
6137 | { | |
6138 | /* This file matches for a completion; add it to the current | |
6139 | list of matches. */ | |
6140 | add_filename_to_list (s->filename, text, word, &list); | |
6141 | } | |
6142 | else | |
6143 | { | |
6144 | /* NOTE: We allow the user to type a base name when the | |
6145 | debug info records leading directories, but not the other | |
6146 | way around. This is what subroutines of breakpoint | |
6147 | command do when they parse file names. */ | |
6148 | base_name = lbasename (s->filename); | |
6149 | if (base_name != s->filename | |
6150 | && !filenames_seen.seen (base_name) | |
6151 | && filename_ncmp (base_name, text, text_len) == 0) | |
6152 | add_filename_to_list (base_name, text, word, &list); | |
6153 | } | |
6154 | } | |
c94fdfd0 EZ |
6155 | } |
6156 | } | |
6157 | ||
bbf2f4df | 6158 | datum.filename_seen_cache = &filenames_seen; |
ccefe4c4 TT |
6159 | datum.text = text; |
6160 | datum.word = word; | |
6161 | datum.text_len = text_len; | |
6162 | datum.list = &list; | |
f4655dee | 6163 | map_symbol_filenames (datum, false /*need_fullname*/); |
9fdc877b | 6164 | |
c94fdfd0 EZ |
6165 | return list; |
6166 | } | |
c906108c | 6167 | \f |
51cc5b07 | 6168 | /* Track MAIN */ |
32ac0d11 TT |
6169 | |
6170 | /* Return the "main_info" object for the current program space. If | |
6171 | the object has not yet been created, create it and fill in some | |
6172 | default values. */ | |
6173 | ||
6174 | static struct main_info * | |
6175 | get_main_info (void) | |
6176 | { | |
a32ad8c5 | 6177 | struct main_info *info = main_progspace_key.get (current_program_space); |
32ac0d11 TT |
6178 | |
6179 | if (info == NULL) | |
6180 | { | |
3d548a53 TT |
6181 | /* It may seem strange to store the main name in the progspace |
6182 | and also in whatever objfile happens to see a main name in | |
6183 | its debug info. The reason for this is mainly historical: | |
6184 | gdb returned "main" as the name even if no function named | |
6185 | "main" was defined the program; and this approach lets us | |
6186 | keep compatibility. */ | |
a32ad8c5 | 6187 | info = main_progspace_key.emplace (current_program_space); |
32ac0d11 TT |
6188 | } |
6189 | ||
6190 | return info; | |
6191 | } | |
6192 | ||
3d548a53 | 6193 | static void |
9e6c82ad | 6194 | set_main_name (const char *name, enum language lang) |
51cc5b07 | 6195 | { |
32ac0d11 TT |
6196 | struct main_info *info = get_main_info (); |
6197 | ||
6198 | if (info->name_of_main != NULL) | |
51cc5b07 | 6199 | { |
32ac0d11 TT |
6200 | xfree (info->name_of_main); |
6201 | info->name_of_main = NULL; | |
6202 | info->language_of_main = language_unknown; | |
51cc5b07 AC |
6203 | } |
6204 | if (name != NULL) | |
6205 | { | |
32ac0d11 TT |
6206 | info->name_of_main = xstrdup (name); |
6207 | info->language_of_main = lang; | |
51cc5b07 AC |
6208 | } |
6209 | } | |
6210 | ||
ea53e89f JB |
6211 | /* Deduce the name of the main procedure, and set NAME_OF_MAIN |
6212 | accordingly. */ | |
6213 | ||
6214 | static void | |
6215 | find_main_name (void) | |
6216 | { | |
cd6c7346 | 6217 | const char *new_main_name; |
3d548a53 TT |
6218 | |
6219 | /* First check the objfiles to see whether a debuginfo reader has | |
6220 | picked up the appropriate main name. Historically the main name | |
6221 | was found in a more or less random way; this approach instead | |
6222 | relies on the order of objfile creation -- which still isn't | |
6223 | guaranteed to get the correct answer, but is just probably more | |
6224 | accurate. */ | |
2030c079 | 6225 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
6226 | { |
6227 | if (objfile->per_bfd->name_of_main != NULL) | |
6228 | { | |
6229 | set_main_name (objfile->per_bfd->name_of_main, | |
6230 | objfile->per_bfd->language_of_main); | |
6231 | return; | |
6232 | } | |
6233 | } | |
ea53e89f JB |
6234 | |
6235 | /* Try to see if the main procedure is in Ada. */ | |
6236 | /* FIXME: brobecker/2005-03-07: Another way of doing this would | |
6237 | be to add a new method in the language vector, and call this | |
6238 | method for each language until one of them returns a non-empty | |
6239 | name. This would allow us to remove this hard-coded call to | |
6240 | an Ada function. It is not clear that this is a better approach | |
6241 | at this point, because all methods need to be written in a way | |
c378eb4e | 6242 | such that false positives never be returned. For instance, it is |
ea53e89f JB |
6243 | important that a method does not return a wrong name for the main |
6244 | procedure if the main procedure is actually written in a different | |
6245 | language. It is easy to guaranty this with Ada, since we use a | |
6246 | special symbol generated only when the main in Ada to find the name | |
c378eb4e | 6247 | of the main procedure. It is difficult however to see how this can |
ea53e89f JB |
6248 | be guarantied for languages such as C, for instance. This suggests |
6249 | that order of call for these methods becomes important, which means | |
6250 | a more complicated approach. */ | |
6251 | new_main_name = ada_main_name (); | |
6252 | if (new_main_name != NULL) | |
9af17804 | 6253 | { |
9e6c82ad | 6254 | set_main_name (new_main_name, language_ada); |
ea53e89f JB |
6255 | return; |
6256 | } | |
6257 | ||
63778547 IB |
6258 | new_main_name = d_main_name (); |
6259 | if (new_main_name != NULL) | |
6260 | { | |
6261 | set_main_name (new_main_name, language_d); | |
6262 | return; | |
6263 | } | |
6264 | ||
a766d390 DE |
6265 | new_main_name = go_main_name (); |
6266 | if (new_main_name != NULL) | |
6267 | { | |
9e6c82ad | 6268 | set_main_name (new_main_name, language_go); |
a766d390 DE |
6269 | return; |
6270 | } | |
6271 | ||
cd6c7346 PM |
6272 | new_main_name = pascal_main_name (); |
6273 | if (new_main_name != NULL) | |
9af17804 | 6274 | { |
9e6c82ad | 6275 | set_main_name (new_main_name, language_pascal); |
cd6c7346 PM |
6276 | return; |
6277 | } | |
6278 | ||
ea53e89f JB |
6279 | /* The languages above didn't identify the name of the main procedure. |
6280 | Fallback to "main". */ | |
d3214198 TV |
6281 | |
6282 | /* Try to find language for main in psymtabs. */ | |
6283 | enum language lang | |
6284 | = find_quick_global_symbol_language ("main", VAR_DOMAIN); | |
6285 | if (lang != language_unknown) | |
6286 | { | |
6287 | set_main_name ("main", lang); | |
6288 | return; | |
6289 | } | |
6290 | ||
9e6c82ad | 6291 | set_main_name ("main", language_unknown); |
ea53e89f JB |
6292 | } |
6293 | ||
cd215b2e TT |
6294 | /* See symtab.h. */ |
6295 | ||
6296 | const char * | |
6297 | main_name () | |
51cc5b07 | 6298 | { |
32ac0d11 TT |
6299 | struct main_info *info = get_main_info (); |
6300 | ||
6301 | if (info->name_of_main == NULL) | |
ea53e89f JB |
6302 | find_main_name (); |
6303 | ||
32ac0d11 | 6304 | return info->name_of_main; |
51cc5b07 AC |
6305 | } |
6306 | ||
9e6c82ad TT |
6307 | /* Return the language of the main function. If it is not known, |
6308 | return language_unknown. */ | |
6309 | ||
6310 | enum language | |
6311 | main_language (void) | |
6312 | { | |
32ac0d11 TT |
6313 | struct main_info *info = get_main_info (); |
6314 | ||
6315 | if (info->name_of_main == NULL) | |
6316 | find_main_name (); | |
6317 | ||
6318 | return info->language_of_main; | |
9e6c82ad TT |
6319 | } |
6320 | ||
ea53e89f JB |
6321 | /* Handle ``executable_changed'' events for the symtab module. */ |
6322 | ||
6323 | static void | |
781b42b0 | 6324 | symtab_observer_executable_changed (void) |
ea53e89f JB |
6325 | { |
6326 | /* NAME_OF_MAIN may no longer be the same, so reset it for now. */ | |
9e6c82ad | 6327 | set_main_name (NULL, language_unknown); |
ea53e89f | 6328 | } |
51cc5b07 | 6329 | |
a6c727b2 DJ |
6330 | /* Return 1 if the supplied producer string matches the ARM RealView |
6331 | compiler (armcc). */ | |
6332 | ||
ececd218 | 6333 | bool |
a6c727b2 DJ |
6334 | producer_is_realview (const char *producer) |
6335 | { | |
6336 | static const char *const arm_idents[] = { | |
6337 | "ARM C Compiler, ADS", | |
6338 | "Thumb C Compiler, ADS", | |
6339 | "ARM C++ Compiler, ADS", | |
6340 | "Thumb C++ Compiler, ADS", | |
6341 | "ARM/Thumb C/C++ Compiler, RVCT", | |
6342 | "ARM C/C++ Compiler, RVCT" | |
6343 | }; | |
6344 | int i; | |
6345 | ||
6346 | if (producer == NULL) | |
ececd218 | 6347 | return false; |
a6c727b2 DJ |
6348 | |
6349 | for (i = 0; i < ARRAY_SIZE (arm_idents); i++) | |
61012eef | 6350 | if (startswith (producer, arm_idents[i])) |
ececd218 | 6351 | return true; |
a6c727b2 | 6352 | |
ececd218 | 6353 | return false; |
a6c727b2 | 6354 | } |
ed0616c6 | 6355 | |
f1e6e072 TT |
6356 | \f |
6357 | ||
6358 | /* The next index to hand out in response to a registration request. */ | |
6359 | ||
6360 | static int next_aclass_value = LOC_FINAL_VALUE; | |
6361 | ||
6362 | /* The maximum number of "aclass" registrations we support. This is | |
6363 | constant for convenience. */ | |
6364 | #define MAX_SYMBOL_IMPLS (LOC_FINAL_VALUE + 10) | |
6365 | ||
6366 | /* The objects representing the various "aclass" values. The elements | |
6367 | from 0 up to LOC_FINAL_VALUE-1 represent themselves, and subsequent | |
6368 | elements are those registered at gdb initialization time. */ | |
6369 | ||
6370 | static struct symbol_impl symbol_impl[MAX_SYMBOL_IMPLS]; | |
6371 | ||
6372 | /* The globally visible pointer. This is separate from 'symbol_impl' | |
6373 | so that it can be const. */ | |
6374 | ||
6375 | const struct symbol_impl *symbol_impls = &symbol_impl[0]; | |
6376 | ||
6377 | /* Make sure we saved enough room in struct symbol. */ | |
6378 | ||
6379 | gdb_static_assert (MAX_SYMBOL_IMPLS <= (1 << SYMBOL_ACLASS_BITS)); | |
6380 | ||
6381 | /* Register a computed symbol type. ACLASS must be LOC_COMPUTED. OPS | |
6382 | is the ops vector associated with this index. This returns the new | |
6383 | index, which should be used as the aclass_index field for symbols | |
6384 | of this type. */ | |
6385 | ||
6386 | int | |
6387 | register_symbol_computed_impl (enum address_class aclass, | |
6388 | const struct symbol_computed_ops *ops) | |
6389 | { | |
6390 | int result = next_aclass_value++; | |
6391 | ||
6392 | gdb_assert (aclass == LOC_COMPUTED); | |
6393 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6394 | symbol_impl[result].aclass = aclass; | |
6395 | symbol_impl[result].ops_computed = ops; | |
6396 | ||
24d6c2a0 TT |
6397 | /* Sanity check OPS. */ |
6398 | gdb_assert (ops != NULL); | |
6399 | gdb_assert (ops->tracepoint_var_ref != NULL); | |
6400 | gdb_assert (ops->describe_location != NULL); | |
0b31a4bc | 6401 | gdb_assert (ops->get_symbol_read_needs != NULL); |
24d6c2a0 TT |
6402 | gdb_assert (ops->read_variable != NULL); |
6403 | ||
f1e6e072 TT |
6404 | return result; |
6405 | } | |
6406 | ||
6407 | /* Register a function with frame base type. ACLASS must be LOC_BLOCK. | |
6408 | OPS is the ops vector associated with this index. This returns the | |
6409 | new index, which should be used as the aclass_index field for symbols | |
6410 | of this type. */ | |
6411 | ||
6412 | int | |
6413 | register_symbol_block_impl (enum address_class aclass, | |
6414 | const struct symbol_block_ops *ops) | |
6415 | { | |
6416 | int result = next_aclass_value++; | |
6417 | ||
6418 | gdb_assert (aclass == LOC_BLOCK); | |
6419 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6420 | symbol_impl[result].aclass = aclass; | |
6421 | symbol_impl[result].ops_block = ops; | |
6422 | ||
6423 | /* Sanity check OPS. */ | |
6424 | gdb_assert (ops != NULL); | |
6425 | gdb_assert (ops->find_frame_base_location != NULL); | |
6426 | ||
6427 | return result; | |
6428 | } | |
6429 | ||
6430 | /* Register a register symbol type. ACLASS must be LOC_REGISTER or | |
6431 | LOC_REGPARM_ADDR. OPS is the register ops vector associated with | |
6432 | this index. This returns the new index, which should be used as | |
6433 | the aclass_index field for symbols of this type. */ | |
6434 | ||
6435 | int | |
6436 | register_symbol_register_impl (enum address_class aclass, | |
6437 | const struct symbol_register_ops *ops) | |
6438 | { | |
6439 | int result = next_aclass_value++; | |
6440 | ||
6441 | gdb_assert (aclass == LOC_REGISTER || aclass == LOC_REGPARM_ADDR); | |
6442 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6443 | symbol_impl[result].aclass = aclass; | |
6444 | symbol_impl[result].ops_register = ops; | |
6445 | ||
6446 | return result; | |
6447 | } | |
6448 | ||
6449 | /* Initialize elements of 'symbol_impl' for the constants in enum | |
6450 | address_class. */ | |
6451 | ||
6452 | static void | |
6453 | initialize_ordinary_address_classes (void) | |
6454 | { | |
6455 | int i; | |
6456 | ||
6457 | for (i = 0; i < LOC_FINAL_VALUE; ++i) | |
aead7601 | 6458 | symbol_impl[i].aclass = (enum address_class) i; |
f1e6e072 TT |
6459 | } |
6460 | ||
6461 | \f | |
6462 | ||
08be3fe3 DE |
6463 | /* See symtab.h. */ |
6464 | ||
6465 | struct objfile * | |
6466 | symbol_objfile (const struct symbol *symbol) | |
6467 | { | |
1994afbf DE |
6468 | gdb_assert (SYMBOL_OBJFILE_OWNED (symbol)); |
6469 | return SYMTAB_OBJFILE (symbol->owner.symtab); | |
08be3fe3 DE |
6470 | } |
6471 | ||
6472 | /* See symtab.h. */ | |
6473 | ||
6474 | struct gdbarch * | |
6475 | symbol_arch (const struct symbol *symbol) | |
6476 | { | |
1994afbf DE |
6477 | if (!SYMBOL_OBJFILE_OWNED (symbol)) |
6478 | return symbol->owner.arch; | |
08feed99 | 6479 | return SYMTAB_OBJFILE (symbol->owner.symtab)->arch (); |
08be3fe3 DE |
6480 | } |
6481 | ||
6482 | /* See symtab.h. */ | |
6483 | ||
6484 | struct symtab * | |
6485 | symbol_symtab (const struct symbol *symbol) | |
6486 | { | |
1994afbf DE |
6487 | gdb_assert (SYMBOL_OBJFILE_OWNED (symbol)); |
6488 | return symbol->owner.symtab; | |
08be3fe3 DE |
6489 | } |
6490 | ||
6491 | /* See symtab.h. */ | |
6492 | ||
6493 | void | |
6494 | symbol_set_symtab (struct symbol *symbol, struct symtab *symtab) | |
6495 | { | |
1994afbf DE |
6496 | gdb_assert (SYMBOL_OBJFILE_OWNED (symbol)); |
6497 | symbol->owner.symtab = symtab; | |
08be3fe3 DE |
6498 | } |
6499 | ||
4b610737 TT |
6500 | /* See symtab.h. */ |
6501 | ||
6502 | CORE_ADDR | |
6503 | get_symbol_address (const struct symbol *sym) | |
6504 | { | |
6505 | gdb_assert (sym->maybe_copied); | |
6506 | gdb_assert (SYMBOL_CLASS (sym) == LOC_STATIC); | |
6507 | ||
987012b8 | 6508 | const char *linkage_name = sym->linkage_name (); |
4b610737 TT |
6509 | |
6510 | for (objfile *objfile : current_program_space->objfiles ()) | |
6511 | { | |
3e65b3e9 TT |
6512 | if (objfile->separate_debug_objfile_backlink != nullptr) |
6513 | continue; | |
6514 | ||
4b610737 TT |
6515 | bound_minimal_symbol minsym |
6516 | = lookup_minimal_symbol_linkage (linkage_name, objfile); | |
6517 | if (minsym.minsym != nullptr) | |
6518 | return BMSYMBOL_VALUE_ADDRESS (minsym); | |
6519 | } | |
468c0cbb | 6520 | return sym->value.address; |
4b610737 TT |
6521 | } |
6522 | ||
6523 | /* See symtab.h. */ | |
6524 | ||
6525 | CORE_ADDR | |
6526 | get_msymbol_address (struct objfile *objf, const struct minimal_symbol *minsym) | |
6527 | { | |
6528 | gdb_assert (minsym->maybe_copied); | |
6529 | gdb_assert ((objf->flags & OBJF_MAINLINE) == 0); | |
6530 | ||
c9d95fa3 | 6531 | const char *linkage_name = minsym->linkage_name (); |
4b610737 TT |
6532 | |
6533 | for (objfile *objfile : current_program_space->objfiles ()) | |
6534 | { | |
3e65b3e9 TT |
6535 | if (objfile->separate_debug_objfile_backlink == nullptr |
6536 | && (objfile->flags & OBJF_MAINLINE) != 0) | |
4b610737 TT |
6537 | { |
6538 | bound_minimal_symbol found | |
6539 | = lookup_minimal_symbol_linkage (linkage_name, objfile); | |
6540 | if (found.minsym != nullptr) | |
6541 | return BMSYMBOL_VALUE_ADDRESS (found); | |
6542 | } | |
6543 | } | |
a52d653e AB |
6544 | return (minsym->value.address |
6545 | + objf->section_offsets[minsym->section_index ()]); | |
4b610737 TT |
6546 | } |
6547 | ||
e623cf5d TT |
6548 | \f |
6549 | ||
165f8965 AB |
6550 | /* Hold the sub-commands of 'info module'. */ |
6551 | ||
6552 | static struct cmd_list_element *info_module_cmdlist = NULL; | |
6553 | ||
165f8965 AB |
6554 | /* See symtab.h. */ |
6555 | ||
6556 | std::vector<module_symbol_search> | |
6557 | search_module_symbols (const char *module_regexp, const char *regexp, | |
6558 | const char *type_regexp, search_domain kind) | |
6559 | { | |
6560 | std::vector<module_symbol_search> results; | |
6561 | ||
6562 | /* Search for all modules matching MODULE_REGEXP. */ | |
470c0b1c AB |
6563 | global_symbol_searcher spec1 (MODULES_DOMAIN, module_regexp); |
6564 | spec1.set_exclude_minsyms (true); | |
6565 | std::vector<symbol_search> modules = spec1.search (); | |
165f8965 AB |
6566 | |
6567 | /* Now search for all symbols of the required KIND matching the required | |
6568 | regular expressions. We figure out which ones are in which modules | |
6569 | below. */ | |
470c0b1c AB |
6570 | global_symbol_searcher spec2 (kind, regexp); |
6571 | spec2.set_symbol_type_regexp (type_regexp); | |
6572 | spec2.set_exclude_minsyms (true); | |
6573 | std::vector<symbol_search> symbols = spec2.search (); | |
165f8965 AB |
6574 | |
6575 | /* Now iterate over all MODULES, checking to see which items from | |
6576 | SYMBOLS are in each module. */ | |
6577 | for (const symbol_search &p : modules) | |
6578 | { | |
6579 | QUIT; | |
6580 | ||
6581 | /* This is a module. */ | |
6582 | gdb_assert (p.symbol != nullptr); | |
6583 | ||
987012b8 | 6584 | std::string prefix = p.symbol->print_name (); |
165f8965 AB |
6585 | prefix += "::"; |
6586 | ||
6587 | for (const symbol_search &q : symbols) | |
6588 | { | |
6589 | if (q.symbol == nullptr) | |
6590 | continue; | |
6591 | ||
987012b8 | 6592 | if (strncmp (q.symbol->print_name (), prefix.c_str (), |
165f8965 AB |
6593 | prefix.size ()) != 0) |
6594 | continue; | |
6595 | ||
6596 | results.push_back ({p, q}); | |
6597 | } | |
6598 | } | |
6599 | ||
6600 | return results; | |
6601 | } | |
6602 | ||
6603 | /* Implement the core of both 'info module functions' and 'info module | |
6604 | variables'. */ | |
6605 | ||
6606 | static void | |
6607 | info_module_subcommand (bool quiet, const char *module_regexp, | |
6608 | const char *regexp, const char *type_regexp, | |
6609 | search_domain kind) | |
6610 | { | |
6611 | /* Print a header line. Don't build the header line bit by bit as this | |
6612 | prevents internationalisation. */ | |
6613 | if (!quiet) | |
6614 | { | |
6615 | if (module_regexp == nullptr) | |
6616 | { | |
6617 | if (type_regexp == nullptr) | |
6618 | { | |
6619 | if (regexp == nullptr) | |
6620 | printf_filtered ((kind == VARIABLES_DOMAIN | |
6621 | ? _("All variables in all modules:") | |
6622 | : _("All functions in all modules:"))); | |
6623 | else | |
6624 | printf_filtered | |
6625 | ((kind == VARIABLES_DOMAIN | |
6626 | ? _("All variables matching regular expression" | |
6627 | " \"%s\" in all modules:") | |
6628 | : _("All functions matching regular expression" | |
6629 | " \"%s\" in all modules:")), | |
6630 | regexp); | |
6631 | } | |
6632 | else | |
6633 | { | |
6634 | if (regexp == nullptr) | |
6635 | printf_filtered | |
6636 | ((kind == VARIABLES_DOMAIN | |
6637 | ? _("All variables with type matching regular " | |
6638 | "expression \"%s\" in all modules:") | |
6639 | : _("All functions with type matching regular " | |
6640 | "expression \"%s\" in all modules:")), | |
6641 | type_regexp); | |
6642 | else | |
6643 | printf_filtered | |
6644 | ((kind == VARIABLES_DOMAIN | |
6645 | ? _("All variables matching regular expression " | |
6646 | "\"%s\",\n\twith type matching regular " | |
6647 | "expression \"%s\" in all modules:") | |
6648 | : _("All functions matching regular expression " | |
6649 | "\"%s\",\n\twith type matching regular " | |
6650 | "expression \"%s\" in all modules:")), | |
6651 | regexp, type_regexp); | |
6652 | } | |
6653 | } | |
6654 | else | |
6655 | { | |
6656 | if (type_regexp == nullptr) | |
6657 | { | |
6658 | if (regexp == nullptr) | |
6659 | printf_filtered | |
6660 | ((kind == VARIABLES_DOMAIN | |
6661 | ? _("All variables in all modules matching regular " | |
6662 | "expression \"%s\":") | |
6663 | : _("All functions in all modules matching regular " | |
6664 | "expression \"%s\":")), | |
6665 | module_regexp); | |
6666 | else | |
6667 | printf_filtered | |
6668 | ((kind == VARIABLES_DOMAIN | |
6669 | ? _("All variables matching regular expression " | |
6670 | "\"%s\",\n\tin all modules matching regular " | |
6671 | "expression \"%s\":") | |
6672 | : _("All functions matching regular expression " | |
6673 | "\"%s\",\n\tin all modules matching regular " | |
6674 | "expression \"%s\":")), | |
6675 | regexp, module_regexp); | |
6676 | } | |
6677 | else | |
6678 | { | |
6679 | if (regexp == nullptr) | |
6680 | printf_filtered | |
6681 | ((kind == VARIABLES_DOMAIN | |
6682 | ? _("All variables with type matching regular " | |
6683 | "expression \"%s\"\n\tin all modules matching " | |
6684 | "regular expression \"%s\":") | |
6685 | : _("All functions with type matching regular " | |
6686 | "expression \"%s\"\n\tin all modules matching " | |
6687 | "regular expression \"%s\":")), | |
6688 | type_regexp, module_regexp); | |
6689 | else | |
6690 | printf_filtered | |
6691 | ((kind == VARIABLES_DOMAIN | |
6692 | ? _("All variables matching regular expression " | |
6693 | "\"%s\",\n\twith type matching regular expression " | |
6694 | "\"%s\",\n\tin all modules matching regular " | |
6695 | "expression \"%s\":") | |
6696 | : _("All functions matching regular expression " | |
6697 | "\"%s\",\n\twith type matching regular expression " | |
6698 | "\"%s\",\n\tin all modules matching regular " | |
6699 | "expression \"%s\":")), | |
6700 | regexp, type_regexp, module_regexp); | |
6701 | } | |
6702 | } | |
6703 | printf_filtered ("\n"); | |
6704 | } | |
6705 | ||
6706 | /* Find all symbols of type KIND matching the given regular expressions | |
6707 | along with the symbols for the modules in which those symbols | |
6708 | reside. */ | |
6709 | std::vector<module_symbol_search> module_symbols | |
6710 | = search_module_symbols (module_regexp, regexp, type_regexp, kind); | |
6711 | ||
6712 | std::sort (module_symbols.begin (), module_symbols.end (), | |
6713 | [] (const module_symbol_search &a, const module_symbol_search &b) | |
6714 | { | |
6715 | if (a.first < b.first) | |
6716 | return true; | |
6717 | else if (a.first == b.first) | |
6718 | return a.second < b.second; | |
6719 | else | |
6720 | return false; | |
6721 | }); | |
6722 | ||
6723 | const char *last_filename = ""; | |
6724 | const symbol *last_module_symbol = nullptr; | |
6725 | for (const module_symbol_search &ms : module_symbols) | |
6726 | { | |
6727 | const symbol_search &p = ms.first; | |
6728 | const symbol_search &q = ms.second; | |
6729 | ||
6730 | gdb_assert (q.symbol != nullptr); | |
6731 | ||
6732 | if (last_module_symbol != p.symbol) | |
6733 | { | |
6734 | printf_filtered ("\n"); | |
987012b8 | 6735 | printf_filtered (_("Module \"%s\":\n"), p.symbol->print_name ()); |
165f8965 AB |
6736 | last_module_symbol = p.symbol; |
6737 | last_filename = ""; | |
6738 | } | |
6739 | ||
6740 | print_symbol_info (FUNCTIONS_DOMAIN, q.symbol, q.block, | |
6741 | last_filename); | |
6742 | last_filename | |
6743 | = symtab_to_filename_for_display (symbol_symtab (q.symbol)); | |
6744 | } | |
6745 | } | |
6746 | ||
6747 | /* Hold the option values for the 'info module .....' sub-commands. */ | |
6748 | ||
6749 | struct info_modules_var_func_options | |
6750 | { | |
6751 | bool quiet = false; | |
6752 | char *type_regexp = nullptr; | |
6753 | char *module_regexp = nullptr; | |
6754 | ||
6755 | ~info_modules_var_func_options () | |
6756 | { | |
6757 | xfree (type_regexp); | |
6758 | xfree (module_regexp); | |
6759 | } | |
6760 | }; | |
6761 | ||
6762 | /* The options used by 'info module variables' and 'info module functions' | |
6763 | commands. */ | |
6764 | ||
6765 | static const gdb::option::option_def info_modules_var_func_options_defs [] = { | |
6766 | gdb::option::boolean_option_def<info_modules_var_func_options> { | |
6767 | "q", | |
6768 | [] (info_modules_var_func_options *opt) { return &opt->quiet; }, | |
6769 | nullptr, /* show_cmd_cb */ | |
6770 | nullptr /* set_doc */ | |
6771 | }, | |
6772 | ||
6773 | gdb::option::string_option_def<info_modules_var_func_options> { | |
6774 | "t", | |
6775 | [] (info_modules_var_func_options *opt) { return &opt->type_regexp; }, | |
6776 | nullptr, /* show_cmd_cb */ | |
6777 | nullptr /* set_doc */ | |
6778 | }, | |
6779 | ||
6780 | gdb::option::string_option_def<info_modules_var_func_options> { | |
6781 | "m", | |
6782 | [] (info_modules_var_func_options *opt) { return &opt->module_regexp; }, | |
6783 | nullptr, /* show_cmd_cb */ | |
6784 | nullptr /* set_doc */ | |
6785 | } | |
6786 | }; | |
6787 | ||
6788 | /* Return the option group used by the 'info module ...' sub-commands. */ | |
6789 | ||
6790 | static inline gdb::option::option_def_group | |
6791 | make_info_modules_var_func_options_def_group | |
6792 | (info_modules_var_func_options *opts) | |
6793 | { | |
6794 | return {{info_modules_var_func_options_defs}, opts}; | |
6795 | } | |
6796 | ||
6797 | /* Implements the 'info module functions' command. */ | |
6798 | ||
6799 | static void | |
6800 | info_module_functions_command (const char *args, int from_tty) | |
6801 | { | |
6802 | info_modules_var_func_options opts; | |
6803 | auto grp = make_info_modules_var_func_options_def_group (&opts); | |
6804 | gdb::option::process_options | |
6805 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
6806 | if (args != nullptr && *args == '\0') | |
6807 | args = nullptr; | |
6808 | ||
6809 | info_module_subcommand (opts.quiet, opts.module_regexp, args, | |
6810 | opts.type_regexp, FUNCTIONS_DOMAIN); | |
6811 | } | |
6812 | ||
6813 | /* Implements the 'info module variables' command. */ | |
6814 | ||
6815 | static void | |
6816 | info_module_variables_command (const char *args, int from_tty) | |
6817 | { | |
6818 | info_modules_var_func_options opts; | |
6819 | auto grp = make_info_modules_var_func_options_def_group (&opts); | |
6820 | gdb::option::process_options | |
6821 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
6822 | if (args != nullptr && *args == '\0') | |
6823 | args = nullptr; | |
6824 | ||
6825 | info_module_subcommand (opts.quiet, opts.module_regexp, args, | |
6826 | opts.type_regexp, VARIABLES_DOMAIN); | |
6827 | } | |
6828 | ||
6829 | /* Command completer for 'info module ...' sub-commands. */ | |
6830 | ||
6831 | static void | |
6832 | info_module_var_func_command_completer (struct cmd_list_element *ignore, | |
6833 | completion_tracker &tracker, | |
6834 | const char *text, | |
6835 | const char * /* word */) | |
6836 | { | |
6837 | ||
6838 | const auto group = make_info_modules_var_func_options_def_group (nullptr); | |
6839 | if (gdb::option::complete_options | |
6840 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
6841 | return; | |
6842 | ||
6843 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
6844 | symbol_completer (ignore, tracker, text, word); | |
6845 | } | |
6846 | ||
6847 | \f | |
6848 | ||
6c265988 | 6849 | void _initialize_symtab (); |
c906108c | 6850 | void |
6c265988 | 6851 | _initialize_symtab () |
c906108c | 6852 | { |
60cfcb20 AB |
6853 | cmd_list_element *c; |
6854 | ||
f1e6e072 TT |
6855 | initialize_ordinary_address_classes (); |
6856 | ||
60cfcb20 AB |
6857 | c = add_info ("variables", info_variables_command, |
6858 | info_print_args_help (_("\ | |
12615cba | 6859 | All global and static variable names or those matching REGEXPs.\n\ |
4acfdd20 | 6860 | Usage: info variables [-q] [-n] [-t TYPEREGEXP] [NAMEREGEXP]\n\ |
12615cba | 6861 | Prints the global and static variables.\n"), |
4acfdd20 AB |
6862 | _("global and static variables"), |
6863 | true)); | |
095252be | 6864 | set_cmd_completer_handle_brkchars (c, info_vars_funcs_command_completer); |
c906108c | 6865 | if (dbx_commands) |
60cfcb20 AB |
6866 | { |
6867 | c = add_com ("whereis", class_info, info_variables_command, | |
6868 | info_print_args_help (_("\ | |
12615cba | 6869 | All global and static variable names, or those matching REGEXPs.\n\ |
4acfdd20 | 6870 | Usage: whereis [-q] [-n] [-t TYPEREGEXP] [NAMEREGEXP]\n\ |
12615cba | 6871 | Prints the global and static variables.\n"), |
4acfdd20 AB |
6872 | _("global and static variables"), |
6873 | true)); | |
095252be | 6874 | set_cmd_completer_handle_brkchars (c, info_vars_funcs_command_completer); |
60cfcb20 | 6875 | } |
c906108c | 6876 | |
60cfcb20 AB |
6877 | c = add_info ("functions", info_functions_command, |
6878 | info_print_args_help (_("\ | |
12615cba | 6879 | All function names or those matching REGEXPs.\n\ |
4acfdd20 | 6880 | Usage: info functions [-q] [-n] [-t TYPEREGEXP] [NAMEREGEXP]\n\ |
12615cba | 6881 | Prints the functions.\n"), |
4acfdd20 AB |
6882 | _("functions"), |
6883 | true)); | |
095252be | 6884 | set_cmd_completer_handle_brkchars (c, info_vars_funcs_command_completer); |
c906108c | 6885 | |
a8eab7c6 AB |
6886 | c = add_info ("types", info_types_command, _("\ |
6887 | All type names, or those matching REGEXP.\n\ | |
6888 | Usage: info types [-q] [REGEXP]\n\ | |
6889 | Print information about all types matching REGEXP, or all types if no\n\ | |
6890 | REGEXP is given. The optional flag -q disables printing of headers.")); | |
6891 | set_cmd_completer_handle_brkchars (c, info_types_command_completer); | |
c906108c | 6892 | |
0e350a05 AB |
6893 | const auto info_sources_opts |
6894 | = make_info_sources_options_def_group (nullptr); | |
28cd9371 PW |
6895 | |
6896 | static std::string info_sources_help | |
6897 | = gdb::option::build_help (_("\ | |
6898 | All source files in the program or those matching REGEXP.\n\ | |
6899 | Usage: info sources [OPTION]... [REGEXP]\n\ | |
6900 | By default, REGEXP is used to match anywhere in the filename.\n\ | |
6901 | \n\ | |
6902 | Options:\n\ | |
6903 | %OPTIONS%"), | |
6904 | info_sources_opts); | |
6905 | ||
6906 | c = add_info ("sources", info_sources_command, info_sources_help.c_str ()); | |
6907 | set_cmd_completer_handle_brkchars (c, info_sources_command_completer); | |
c906108c | 6908 | |
59c35742 AB |
6909 | c = add_info ("modules", info_modules_command, |
6910 | _("All module names, or those matching REGEXP.")); | |
6911 | set_cmd_completer_handle_brkchars (c, info_types_command_completer); | |
6912 | ||
0743fc83 | 6913 | add_basic_prefix_cmd ("module", class_info, _("\ |
165f8965 | 6914 | Print information about modules."), |
2f822da5 | 6915 | &info_module_cmdlist, 0, &infolist); |
165f8965 AB |
6916 | |
6917 | c = add_cmd ("functions", class_info, info_module_functions_command, _("\ | |
6918 | Display functions arranged by modules.\n\ | |
6919 | Usage: info module functions [-q] [-m MODREGEXP] [-t TYPEREGEXP] [REGEXP]\n\ | |
6920 | Print a summary of all functions within each Fortran module, grouped by\n\ | |
6921 | module and file. For each function the line on which the function is\n\ | |
6922 | defined is given along with the type signature and name of the function.\n\ | |
6923 | \n\ | |
6924 | If REGEXP is provided then only functions whose name matches REGEXP are\n\ | |
6925 | listed. If MODREGEXP is provided then only functions in modules matching\n\ | |
6926 | MODREGEXP are listed. If TYPEREGEXP is given then only functions whose\n\ | |
6927 | type signature matches TYPEREGEXP are listed.\n\ | |
6928 | \n\ | |
6929 | The -q flag suppresses printing some header information."), | |
6930 | &info_module_cmdlist); | |
6931 | set_cmd_completer_handle_brkchars | |
6932 | (c, info_module_var_func_command_completer); | |
6933 | ||
6934 | c = add_cmd ("variables", class_info, info_module_variables_command, _("\ | |
6935 | Display variables arranged by modules.\n\ | |
6936 | Usage: info module variables [-q] [-m MODREGEXP] [-t TYPEREGEXP] [REGEXP]\n\ | |
6937 | Print a summary of all variables within each Fortran module, grouped by\n\ | |
6938 | module and file. For each variable the line on which the variable is\n\ | |
6939 | defined is given along with the type and name of the variable.\n\ | |
6940 | \n\ | |
6941 | If REGEXP is provided then only variables whose name matches REGEXP are\n\ | |
6942 | listed. If MODREGEXP is provided then only variables in modules matching\n\ | |
6943 | MODREGEXP are listed. If TYPEREGEXP is given then only variables whose\n\ | |
6944 | type matches TYPEREGEXP are listed.\n\ | |
6945 | \n\ | |
6946 | The -q flag suppresses printing some header information."), | |
6947 | &info_module_cmdlist); | |
6948 | set_cmd_completer_handle_brkchars | |
6949 | (c, info_module_var_func_command_completer); | |
6950 | ||
c906108c | 6951 | add_com ("rbreak", class_breakpoint, rbreak_command, |
1bedd215 | 6952 | _("Set a breakpoint for all functions matching REGEXP.")); |
c906108c | 6953 | |
717d2f5a | 6954 | add_setshow_enum_cmd ("multiple-symbols", no_class, |
dda83cd7 SM |
6955 | multiple_symbols_modes, &multiple_symbols_mode, |
6956 | _("\ | |
590042fc | 6957 | Set how the debugger handles ambiguities in expressions."), _("\ |
717d2f5a JB |
6958 | Show how the debugger handles ambiguities in expressions."), _("\ |
6959 | Valid values are \"ask\", \"all\", \"cancel\", and the default is \"all\"."), | |
dda83cd7 | 6960 | NULL, NULL, &setlist, &showlist); |
717d2f5a | 6961 | |
c011a4f4 DE |
6962 | add_setshow_boolean_cmd ("basenames-may-differ", class_obscure, |
6963 | &basenames_may_differ, _("\ | |
6964 | Set whether a source file may have multiple base names."), _("\ | |
6965 | Show whether a source file may have multiple base names."), _("\ | |
6966 | (A \"base name\" is the name of a file with the directory part removed.\n\ | |
6967 | Example: The base name of \"/home/user/hello.c\" is \"hello.c\".)\n\ | |
6968 | If set, GDB will canonicalize file names (e.g., expand symlinks)\n\ | |
6969 | before comparing them. Canonicalization is an expensive operation,\n\ | |
6970 | but it allows the same file be known by more than one base name.\n\ | |
6971 | If not set (the default), all source files are assumed to have just\n\ | |
6972 | one base name, and gdb will do file name comparisons more efficiently."), | |
6973 | NULL, NULL, | |
6974 | &setlist, &showlist); | |
6975 | ||
db0fec5c DE |
6976 | add_setshow_zuinteger_cmd ("symtab-create", no_class, &symtab_create_debug, |
6977 | _("Set debugging of symbol table creation."), | |
6978 | _("Show debugging of symbol table creation."), _("\ | |
6979 | When enabled (non-zero), debugging messages are printed when building\n\ | |
6980 | symbol tables. A value of 1 (one) normally provides enough information.\n\ | |
6981 | A value greater than 1 provides more verbose information."), | |
6982 | NULL, | |
6983 | NULL, | |
6984 | &setdebuglist, &showdebuglist); | |
45cfd468 | 6985 | |
cc485e62 DE |
6986 | add_setshow_zuinteger_cmd ("symbol-lookup", no_class, &symbol_lookup_debug, |
6987 | _("\ | |
6988 | Set debugging of symbol lookup."), _("\ | |
6989 | Show debugging of symbol lookup."), _("\ | |
6990 | When enabled (non-zero), symbol lookups are logged."), | |
6991 | NULL, NULL, | |
6992 | &setdebuglist, &showdebuglist); | |
6993 | ||
f57d2163 DE |
6994 | add_setshow_zuinteger_cmd ("symbol-cache-size", no_class, |
6995 | &new_symbol_cache_size, | |
6996 | _("Set the size of the symbol cache."), | |
6997 | _("Show the size of the symbol cache."), _("\ | |
6998 | The size of the symbol cache.\n\ | |
6999 | If zero then the symbol cache is disabled."), | |
7000 | set_symbol_cache_size_handler, NULL, | |
7001 | &maintenance_set_cmdlist, | |
7002 | &maintenance_show_cmdlist); | |
7003 | ||
7004 | add_cmd ("symbol-cache", class_maintenance, maintenance_print_symbol_cache, | |
7005 | _("Dump the symbol cache for each program space."), | |
7006 | &maintenanceprintlist); | |
7007 | ||
7008 | add_cmd ("symbol-cache-statistics", class_maintenance, | |
7009 | maintenance_print_symbol_cache_statistics, | |
7010 | _("Print symbol cache statistics for each program space."), | |
7011 | &maintenanceprintlist); | |
7012 | ||
5e84b7ee SM |
7013 | cmd_list_element *maintenance_flush_symbol_cache_cmd |
7014 | = add_cmd ("symbol-cache", class_maintenance, | |
7015 | maintenance_flush_symbol_cache, | |
7016 | _("Flush the symbol cache for each program space."), | |
7017 | &maintenanceflushlist); | |
7018 | c = add_alias_cmd ("flush-symbol-cache", maintenance_flush_symbol_cache_cmd, | |
50a5f187 AB |
7019 | class_maintenance, 0, &maintenancelist); |
7020 | deprecate_cmd (c, "maintenancelist flush symbol-cache"); | |
f57d2163 | 7021 | |
c90e7d63 SM |
7022 | gdb::observers::executable_changed.attach (symtab_observer_executable_changed, |
7023 | "symtab"); | |
7024 | gdb::observers::new_objfile.attach (symtab_new_objfile_observer, "symtab"); | |
7025 | gdb::observers::free_objfile.attach (symtab_free_objfile_observer, "symtab"); | |
c906108c | 7026 | } |