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c906108c | 1 | /* Symbol table lookup for the GNU debugger, GDB. |
8926118c | 2 | |
213516ef | 3 | Copyright (C) 1986-2023 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" | |
1298c32f | 21 | #include "dwarf2/call-site.h" |
c906108c SS |
22 | #include "symtab.h" |
23 | #include "gdbtypes.h" | |
24 | #include "gdbcore.h" | |
25 | #include "frame.h" | |
26 | #include "target.h" | |
27 | #include "value.h" | |
28 | #include "symfile.h" | |
29 | #include "objfiles.h" | |
30 | #include "gdbcmd.h" | |
d322d6d6 | 31 | #include "gdbsupport/gdb_regex.h" |
c906108c SS |
32 | #include "expression.h" |
33 | #include "language.h" | |
34 | #include "demangle.h" | |
35 | #include "inferior.h" | |
0378c332 | 36 | #include "source.h" |
a7fdf62f | 37 | #include "filenames.h" /* for FILENAME_CMP */ |
1bae87b9 | 38 | #include "objc-lang.h" |
6aecb9c2 | 39 | #include "d-lang.h" |
1f8173e6 | 40 | #include "ada-lang.h" |
a766d390 | 41 | #include "go-lang.h" |
cd6c7346 | 42 | #include "p-lang.h" |
ff013f42 | 43 | #include "addrmap.h" |
529480d0 | 44 | #include "cli/cli-utils.h" |
1ed9f74e | 45 | #include "cli/cli-style.h" |
50a5f187 | 46 | #include "cli/cli-cmds.h" |
cce0e923 | 47 | #include "fnmatch.h" |
2de7ced7 | 48 | #include "hashtab.h" |
12615cba | 49 | #include "typeprint.h" |
2de7ced7 | 50 | |
bf31fd38 | 51 | #include "gdbsupport/gdb_obstack.h" |
fe898f56 | 52 | #include "block.h" |
de4f826b | 53 | #include "dictionary.h" |
c906108c SS |
54 | |
55 | #include <sys/types.h> | |
56 | #include <fcntl.h> | |
53ce3c39 | 57 | #include <sys/stat.h> |
c906108c | 58 | #include <ctype.h> |
015a42b4 | 59 | #include "cp-abi.h" |
71c25dea | 60 | #include "cp-support.h" |
76727919 | 61 | #include "observable.h" |
3a40aaa0 | 62 | #include "solist.h" |
9a044a89 TT |
63 | #include "macrotab.h" |
64 | #include "macroscope.h" | |
c906108c | 65 | |
270140bd | 66 | #include "parser-defs.h" |
ef0b411a | 67 | #include "completer.h" |
5ed8105e | 68 | #include "progspace-and-thread.h" |
268a13a5 | 69 | #include "gdbsupport/gdb_optional.h" |
bbf2f4df | 70 | #include "filename-seen-cache.h" |
46a62268 | 71 | #include "arch-utils.h" |
b9c04fb2 | 72 | #include <algorithm> |
7bb43059 | 73 | #include "gdbsupport/gdb_string_view.h" |
268a13a5 | 74 | #include "gdbsupport/pathstuff.h" |
1a6ff1a9 | 75 | #include "gdbsupport/common-utils.h" |
ccefe4c4 | 76 | |
ff6c39cf | 77 | /* Forward declarations for local functions. */ |
c906108c | 78 | |
0b39b52e | 79 | static void rbreak_command (const char *, int); |
c906108c | 80 | |
f8eba3c6 | 81 | static int find_line_common (struct linetable *, int, int *, int); |
c906108c | 82 | |
d12307c1 PMR |
83 | static struct block_symbol |
84 | lookup_symbol_aux (const char *name, | |
de63c46b | 85 | symbol_name_match_type match_type, |
d12307c1 PMR |
86 | const struct block *block, |
87 | const domain_enum domain, | |
88 | enum language language, | |
89 | struct field_of_this_result *); | |
fba7f19c | 90 | |
e4051eeb | 91 | static |
d12307c1 | 92 | struct block_symbol lookup_local_symbol (const char *name, |
de63c46b | 93 | symbol_name_match_type match_type, |
d12307c1 PMR |
94 | const struct block *block, |
95 | const domain_enum domain, | |
96 | enum language language); | |
8155455b | 97 | |
d12307c1 | 98 | static struct block_symbol |
c32e6a04 CB |
99 | lookup_symbol_in_objfile (struct objfile *objfile, |
100 | enum block_enum block_index, | |
fe2a438d | 101 | const char *name, const domain_enum domain); |
c906108c | 102 | |
32ac0d11 TT |
103 | /* Type of the data stored on the program space. */ |
104 | ||
105 | struct main_info | |
106 | { | |
107 | /* Name of "main". */ | |
108 | ||
25eb2931 | 109 | std::string name_of_main; |
32ac0d11 TT |
110 | |
111 | /* Language of "main". */ | |
112 | ||
a32ad8c5 | 113 | enum language language_of_main = language_unknown; |
32ac0d11 TT |
114 | }; |
115 | ||
a32ad8c5 TT |
116 | /* Program space key for finding name and language of "main". */ |
117 | ||
08b8a139 | 118 | static const registry<program_space>::key<main_info> main_progspace_key; |
a32ad8c5 | 119 | |
f57d2163 DE |
120 | /* The default symbol cache size. |
121 | There is no extra cpu cost for large N (except when flushing the cache, | |
122 | which is rare). The value here is just a first attempt. A better default | |
123 | value may be higher or lower. A prime number can make up for a bad hash | |
124 | computation, so that's why the number is what it is. */ | |
125 | #define DEFAULT_SYMBOL_CACHE_SIZE 1021 | |
126 | ||
127 | /* The maximum symbol cache size. | |
128 | There's no method to the decision of what value to use here, other than | |
129 | there's no point in allowing a user typo to make gdb consume all memory. */ | |
130 | #define MAX_SYMBOL_CACHE_SIZE (1024*1024) | |
131 | ||
132 | /* symbol_cache_lookup returns this if a previous lookup failed to find the | |
133 | symbol in any objfile. */ | |
d12307c1 PMR |
134 | #define SYMBOL_LOOKUP_FAILED \ |
135 | ((struct block_symbol) {(struct symbol *) 1, NULL}) | |
136 | #define SYMBOL_LOOKUP_FAILED_P(SIB) (SIB.symbol == (struct symbol *) 1) | |
f57d2163 DE |
137 | |
138 | /* Recording lookups that don't find the symbol is just as important, if not | |
139 | more so, than recording found symbols. */ | |
140 | ||
141 | enum symbol_cache_slot_state | |
142 | { | |
143 | SYMBOL_SLOT_UNUSED, | |
144 | SYMBOL_SLOT_NOT_FOUND, | |
145 | SYMBOL_SLOT_FOUND | |
146 | }; | |
147 | ||
52059ffd TT |
148 | struct symbol_cache_slot |
149 | { | |
150 | enum symbol_cache_slot_state state; | |
151 | ||
152 | /* The objfile that was current when the symbol was looked up. | |
153 | This is only needed for global blocks, but for simplicity's sake | |
154 | we allocate the space for both. If data shows the extra space used | |
155 | for static blocks is a problem, we can split things up then. | |
156 | ||
157 | Global blocks need cache lookup to include the objfile context because | |
158 | we need to account for gdbarch_iterate_over_objfiles_in_search_order | |
159 | which can traverse objfiles in, effectively, any order, depending on | |
160 | the current objfile, thus affecting which symbol is found. Normally, | |
161 | only the current objfile is searched first, and then the rest are | |
162 | searched in recorded order; but putting cache lookup inside | |
163 | gdbarch_iterate_over_objfiles_in_search_order would be awkward. | |
164 | Instead we just make the current objfile part of the context of | |
165 | cache lookup. This means we can record the same symbol multiple times, | |
166 | each with a different "current objfile" that was in effect when the | |
167 | lookup was saved in the cache, but cache space is pretty cheap. */ | |
168 | const struct objfile *objfile_context; | |
169 | ||
170 | union | |
171 | { | |
d12307c1 | 172 | struct block_symbol found; |
52059ffd TT |
173 | struct |
174 | { | |
175 | char *name; | |
176 | domain_enum domain; | |
177 | } not_found; | |
178 | } value; | |
179 | }; | |
180 | ||
82f910ea PW |
181 | /* Clear out SLOT. */ |
182 | ||
183 | static void | |
184 | symbol_cache_clear_slot (struct symbol_cache_slot *slot) | |
185 | { | |
186 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
187 | xfree (slot->value.not_found.name); | |
188 | slot->state = SYMBOL_SLOT_UNUSED; | |
189 | } | |
190 | ||
f57d2163 DE |
191 | /* Symbols don't specify global vs static block. |
192 | So keep them in separate caches. */ | |
193 | ||
194 | struct block_symbol_cache | |
195 | { | |
196 | unsigned int hits; | |
197 | unsigned int misses; | |
198 | unsigned int collisions; | |
199 | ||
200 | /* SYMBOLS is a variable length array of this size. | |
201 | One can imagine that in general one cache (global/static) should be a | |
202 | fraction of the size of the other, but there's no data at the moment | |
203 | on which to decide. */ | |
204 | unsigned int size; | |
205 | ||
52059ffd | 206 | struct symbol_cache_slot symbols[1]; |
f57d2163 DE |
207 | }; |
208 | ||
82f910ea PW |
209 | /* Clear all slots of BSC and free BSC. */ |
210 | ||
211 | static void | |
212 | destroy_block_symbol_cache (struct block_symbol_cache *bsc) | |
213 | { | |
214 | if (bsc != nullptr) | |
215 | { | |
216 | for (unsigned int i = 0; i < bsc->size; i++) | |
217 | symbol_cache_clear_slot (&bsc->symbols[i]); | |
218 | xfree (bsc); | |
219 | } | |
220 | } | |
221 | ||
f57d2163 DE |
222 | /* The symbol cache. |
223 | ||
224 | Searching for symbols in the static and global blocks over multiple objfiles | |
225 | again and again can be slow, as can searching very big objfiles. This is a | |
226 | simple cache to improve symbol lookup performance, which is critical to | |
227 | overall gdb performance. | |
228 | ||
229 | Symbols are hashed on the name, its domain, and block. | |
230 | They are also hashed on their objfile for objfile-specific lookups. */ | |
231 | ||
232 | struct symbol_cache | |
233 | { | |
3017b94d TT |
234 | symbol_cache () = default; |
235 | ||
236 | ~symbol_cache () | |
237 | { | |
82f910ea PW |
238 | destroy_block_symbol_cache (global_symbols); |
239 | destroy_block_symbol_cache (static_symbols); | |
3017b94d TT |
240 | } |
241 | ||
242 | struct block_symbol_cache *global_symbols = nullptr; | |
243 | struct block_symbol_cache *static_symbols = nullptr; | |
f57d2163 DE |
244 | }; |
245 | ||
3017b94d TT |
246 | /* Program space key for finding its symbol cache. */ |
247 | ||
08b8a139 | 248 | static const registry<program_space>::key<symbol_cache> symbol_cache_key; |
3017b94d | 249 | |
45cfd468 | 250 | /* When non-zero, print debugging messages related to symtab creation. */ |
db0fec5c | 251 | unsigned int symtab_create_debug = 0; |
45cfd468 | 252 | |
cc485e62 DE |
253 | /* When non-zero, print debugging messages related to symbol lookup. */ |
254 | unsigned int symbol_lookup_debug = 0; | |
255 | ||
f57d2163 DE |
256 | /* The size of the cache is staged here. */ |
257 | static unsigned int new_symbol_cache_size = DEFAULT_SYMBOL_CACHE_SIZE; | |
258 | ||
259 | /* The current value of the symbol cache size. | |
260 | This is saved so that if the user enters a value too big we can restore | |
261 | the original value from here. */ | |
262 | static unsigned int symbol_cache_size = DEFAULT_SYMBOL_CACHE_SIZE; | |
263 | ||
491144b5 | 264 | /* True if a file may be known by two different basenames. |
c011a4f4 DE |
265 | This is the uncommon case, and significantly slows down gdb. |
266 | Default set to "off" to not slow down the common case. */ | |
491144b5 | 267 | bool basenames_may_differ = false; |
c011a4f4 | 268 | |
717d2f5a JB |
269 | /* Allow the user to configure the debugger behavior with respect |
270 | to multiple-choice menus when more than one symbol matches during | |
271 | a symbol lookup. */ | |
272 | ||
7fc830e2 MK |
273 | const char multiple_symbols_ask[] = "ask"; |
274 | const char multiple_symbols_all[] = "all"; | |
275 | const char multiple_symbols_cancel[] = "cancel"; | |
40478521 | 276 | static const char *const multiple_symbols_modes[] = |
717d2f5a JB |
277 | { |
278 | multiple_symbols_ask, | |
279 | multiple_symbols_all, | |
280 | multiple_symbols_cancel, | |
281 | NULL | |
282 | }; | |
283 | static const char *multiple_symbols_mode = multiple_symbols_all; | |
284 | ||
6109f7a3 LS |
285 | /* When TRUE, ignore the prologue-end flag in linetable_entry when searching |
286 | for the SAL past a function prologue. */ | |
287 | static bool ignore_prologue_end_flag = false; | |
288 | ||
717d2f5a JB |
289 | /* Read-only accessor to AUTO_SELECT_MODE. */ |
290 | ||
291 | const char * | |
292 | multiple_symbols_select_mode (void) | |
293 | { | |
294 | return multiple_symbols_mode; | |
295 | } | |
296 | ||
20c681d1 DE |
297 | /* Return the name of a domain_enum. */ |
298 | ||
299 | const char * | |
300 | domain_name (domain_enum e) | |
301 | { | |
302 | switch (e) | |
303 | { | |
304 | case UNDEF_DOMAIN: return "UNDEF_DOMAIN"; | |
305 | case VAR_DOMAIN: return "VAR_DOMAIN"; | |
306 | case STRUCT_DOMAIN: return "STRUCT_DOMAIN"; | |
540feddf | 307 | case MODULE_DOMAIN: return "MODULE_DOMAIN"; |
20c681d1 DE |
308 | case LABEL_DOMAIN: return "LABEL_DOMAIN"; |
309 | case COMMON_BLOCK_DOMAIN: return "COMMON_BLOCK_DOMAIN"; | |
310 | default: gdb_assert_not_reached ("bad domain_enum"); | |
311 | } | |
312 | } | |
313 | ||
314 | /* Return the name of a search_domain . */ | |
315 | ||
316 | const char * | |
317 | search_domain_name (enum search_domain e) | |
318 | { | |
319 | switch (e) | |
320 | { | |
321 | case VARIABLES_DOMAIN: return "VARIABLES_DOMAIN"; | |
322 | case FUNCTIONS_DOMAIN: return "FUNCTIONS_DOMAIN"; | |
323 | case TYPES_DOMAIN: return "TYPES_DOMAIN"; | |
59c35742 | 324 | case MODULES_DOMAIN: return "MODULES_DOMAIN"; |
20c681d1 DE |
325 | case ALL_DOMAIN: return "ALL_DOMAIN"; |
326 | default: gdb_assert_not_reached ("bad search_domain"); | |
327 | } | |
328 | } | |
329 | ||
43f3e411 | 330 | /* See symtab.h. */ |
db0fec5c | 331 | |
b625c770 SM |
332 | call_site * |
333 | compunit_symtab::find_call_site (CORE_ADDR pc) const | |
334 | { | |
335 | if (m_call_site_htab == nullptr) | |
336 | return nullptr; | |
337 | ||
d401e7bf | 338 | CORE_ADDR delta = this->objfile ()->text_section_offset (); |
b0b8879e SM |
339 | CORE_ADDR unrelocated_pc = pc - delta; |
340 | ||
341 | struct call_site call_site_local (unrelocated_pc, nullptr, nullptr); | |
0dd8295d TV |
342 | void **slot |
343 | = htab_find_slot (m_call_site_htab, &call_site_local, NO_INSERT); | |
b625c770 SM |
344 | if (slot == nullptr) |
345 | return nullptr; | |
346 | ||
347 | return (call_site *) *slot; | |
348 | } | |
349 | ||
350 | /* See symtab.h. */ | |
351 | ||
352 | void | |
353 | compunit_symtab::set_call_site_htab (htab_t call_site_htab) | |
354 | { | |
355 | gdb_assert (m_call_site_htab == nullptr); | |
356 | m_call_site_htab = call_site_htab; | |
357 | } | |
358 | ||
359 | /* See symtab.h. */ | |
360 | ||
36664835 SM |
361 | void |
362 | compunit_symtab::set_primary_filetab (symtab *primary_filetab) | |
363 | { | |
364 | symtab *prev_filetab = nullptr; | |
365 | ||
366 | /* Move PRIMARY_FILETAB to the head of the filetab list. */ | |
102cc235 | 367 | for (symtab *filetab : this->filetabs ()) |
36664835 SM |
368 | { |
369 | if (filetab == primary_filetab) | |
370 | { | |
371 | if (prev_filetab != nullptr) | |
372 | { | |
373 | prev_filetab->next = primary_filetab->next; | |
102cc235 SM |
374 | primary_filetab->next = m_filetabs; |
375 | m_filetabs = primary_filetab; | |
36664835 SM |
376 | } |
377 | ||
378 | break; | |
379 | } | |
380 | ||
381 | prev_filetab = filetab; | |
382 | } | |
383 | ||
102cc235 | 384 | gdb_assert (primary_filetab == m_filetabs); |
36664835 SM |
385 | } |
386 | ||
387 | /* See symtab.h. */ | |
388 | ||
43f3e411 | 389 | struct symtab * |
0b17a4f7 | 390 | compunit_symtab::primary_filetab () const |
db0fec5c | 391 | { |
102cc235 | 392 | gdb_assert (m_filetabs != nullptr); |
db0fec5c | 393 | |
43f3e411 | 394 | /* The primary file symtab is the first one in the list. */ |
102cc235 | 395 | return m_filetabs; |
43f3e411 DE |
396 | } |
397 | ||
398 | /* See symtab.h. */ | |
399 | ||
400 | enum language | |
425d5e76 | 401 | compunit_symtab::language () const |
43f3e411 | 402 | { |
425d5e76 | 403 | struct symtab *symtab = primary_filetab (); |
43f3e411 | 404 | |
425d5e76 TT |
405 | /* The language of the compunit symtab is the language of its |
406 | primary source file. */ | |
1ee2e9f9 | 407 | return symtab->language (); |
db0fec5c DE |
408 | } |
409 | ||
4aeddc50 SM |
410 | /* The relocated address of the minimal symbol, using the section |
411 | offsets from OBJFILE. */ | |
412 | ||
413 | CORE_ADDR | |
414 | minimal_symbol::value_address (objfile *objfile) const | |
415 | { | |
416 | if (this->maybe_copied) | |
417 | return get_msymbol_address (objfile, this); | |
418 | else | |
419 | return (this->value_raw_address () | |
420 | + objfile->section_offsets[this->section_index ()]); | |
421 | } | |
422 | ||
1ed9f74e PW |
423 | /* See symtab.h. */ |
424 | ||
425 | bool | |
426 | minimal_symbol::data_p () const | |
427 | { | |
60f62e2b SM |
428 | return m_type == mst_data |
429 | || m_type == mst_bss | |
430 | || m_type == mst_abs | |
431 | || m_type == mst_file_data | |
432 | || m_type == mst_file_bss; | |
1ed9f74e PW |
433 | } |
434 | ||
435 | /* See symtab.h. */ | |
436 | ||
437 | bool | |
438 | minimal_symbol::text_p () const | |
439 | { | |
60f62e2b SM |
440 | return m_type == mst_text |
441 | || m_type == mst_text_gnu_ifunc | |
442 | || m_type == mst_data_gnu_ifunc | |
443 | || m_type == mst_slot_got_plt | |
444 | || m_type == mst_solib_trampoline | |
445 | || m_type == mst_file_text; | |
1ed9f74e PW |
446 | } |
447 | ||
4aac40c8 TT |
448 | /* See whether FILENAME matches SEARCH_NAME using the rule that we |
449 | advertise to the user. (The manual's description of linespecs | |
af529f8f JK |
450 | describes what we advertise). Returns true if they match, false |
451 | otherwise. */ | |
4aac40c8 | 452 | |
ececd218 | 453 | bool |
b57a636e | 454 | compare_filenames_for_search (const char *filename, const char *search_name) |
4aac40c8 TT |
455 | { |
456 | int len = strlen (filename); | |
b57a636e | 457 | size_t search_len = strlen (search_name); |
4aac40c8 TT |
458 | |
459 | if (len < search_len) | |
ececd218 | 460 | return false; |
4aac40c8 TT |
461 | |
462 | /* The tail of FILENAME must match. */ | |
463 | if (FILENAME_CMP (filename + len - search_len, search_name) != 0) | |
ececd218 | 464 | return false; |
4aac40c8 TT |
465 | |
466 | /* Either the names must completely match, or the character | |
467 | preceding the trailing SEARCH_NAME segment of FILENAME must be a | |
d84fca2c JK |
468 | directory separator. |
469 | ||
af529f8f JK |
470 | The check !IS_ABSOLUTE_PATH ensures SEARCH_NAME "/dir/file.c" |
471 | cannot match FILENAME "/path//dir/file.c" - as user has requested | |
472 | absolute path. The sama applies for "c:\file.c" possibly | |
473 | incorrectly hypothetically matching "d:\dir\c:\file.c". | |
474 | ||
d84fca2c JK |
475 | The HAS_DRIVE_SPEC purpose is to make FILENAME "c:file.c" |
476 | compatible with SEARCH_NAME "file.c". In such case a compiler had | |
477 | to put the "c:file.c" name into debug info. Such compatibility | |
478 | works only on GDB built for DOS host. */ | |
4aac40c8 | 479 | return (len == search_len |
af529f8f JK |
480 | || (!IS_ABSOLUTE_PATH (search_name) |
481 | && IS_DIR_SEPARATOR (filename[len - search_len - 1])) | |
4aac40c8 TT |
482 | || (HAS_DRIVE_SPEC (filename) |
483 | && STRIP_DRIVE_SPEC (filename) == &filename[len - search_len])); | |
484 | } | |
485 | ||
cce0e923 DE |
486 | /* Same as compare_filenames_for_search, but for glob-style patterns. |
487 | Heads up on the order of the arguments. They match the order of | |
488 | compare_filenames_for_search, but it's the opposite of the order of | |
489 | arguments to gdb_filename_fnmatch. */ | |
490 | ||
ececd218 | 491 | bool |
cce0e923 DE |
492 | compare_glob_filenames_for_search (const char *filename, |
493 | const char *search_name) | |
494 | { | |
495 | /* We rely on the property of glob-style patterns with FNM_FILE_NAME that | |
496 | all /s have to be explicitly specified. */ | |
497 | int file_path_elements = count_path_elements (filename); | |
498 | int search_path_elements = count_path_elements (search_name); | |
499 | ||
500 | if (search_path_elements > file_path_elements) | |
ececd218 | 501 | return false; |
cce0e923 DE |
502 | |
503 | if (IS_ABSOLUTE_PATH (search_name)) | |
504 | { | |
505 | return (search_path_elements == file_path_elements | |
506 | && gdb_filename_fnmatch (search_name, filename, | |
507 | FNM_FILE_NAME | FNM_NOESCAPE) == 0); | |
508 | } | |
509 | ||
510 | { | |
511 | const char *file_to_compare | |
512 | = strip_leading_path_elements (filename, | |
513 | file_path_elements - search_path_elements); | |
514 | ||
515 | return gdb_filename_fnmatch (search_name, file_to_compare, | |
516 | FNM_FILE_NAME | FNM_NOESCAPE) == 0; | |
517 | } | |
518 | } | |
519 | ||
f8eba3c6 TT |
520 | /* Check for a symtab of a specific name by searching some symtabs. |
521 | This is a helper function for callbacks of iterate_over_symtabs. | |
c906108c | 522 | |
b2d23133 DE |
523 | If NAME is not absolute, then REAL_PATH is NULL |
524 | If NAME is absolute, then REAL_PATH is the gdb_realpath form of NAME. | |
525 | ||
14bc53a8 PA |
526 | The return value, NAME, REAL_PATH and CALLBACK are identical to the |
527 | `map_symtabs_matching_filename' method of quick_symbol_functions. | |
f8eba3c6 | 528 | |
43f3e411 DE |
529 | FIRST and AFTER_LAST indicate the range of compunit symtabs to search. |
530 | Each symtab within the specified compunit symtab is also searched. | |
531 | AFTER_LAST is one past the last compunit symtab to search; NULL means to | |
f8eba3c6 TT |
532 | search until the end of the list. */ |
533 | ||
14bc53a8 | 534 | bool |
f8eba3c6 | 535 | iterate_over_some_symtabs (const char *name, |
f8eba3c6 | 536 | const char *real_path, |
43f3e411 | 537 | struct compunit_symtab *first, |
14bc53a8 PA |
538 | struct compunit_symtab *after_last, |
539 | gdb::function_view<bool (symtab *)> callback) | |
c906108c | 540 | { |
43f3e411 | 541 | struct compunit_symtab *cust; |
c011a4f4 | 542 | const char* base_name = lbasename (name); |
1f84b619 | 543 | |
43f3e411 | 544 | for (cust = first; cust != NULL && cust != after_last; cust = cust->next) |
f079a2e5 | 545 | { |
102cc235 | 546 | for (symtab *s : cust->filetabs ()) |
a94e8645 | 547 | { |
43f3e411 DE |
548 | if (compare_filenames_for_search (s->filename, name)) |
549 | { | |
14bc53a8 PA |
550 | if (callback (s)) |
551 | return true; | |
43f3e411 DE |
552 | continue; |
553 | } | |
a94e8645 | 554 | |
43f3e411 DE |
555 | /* Before we invoke realpath, which can get expensive when many |
556 | files are involved, do a quick comparison of the basenames. */ | |
557 | if (! basenames_may_differ | |
558 | && FILENAME_CMP (base_name, lbasename (s->filename)) != 0) | |
559 | continue; | |
a94e8645 | 560 | |
43f3e411 | 561 | if (compare_filenames_for_search (symtab_to_fullname (s), name)) |
a94e8645 | 562 | { |
14bc53a8 PA |
563 | if (callback (s)) |
564 | return true; | |
a94e8645 DE |
565 | continue; |
566 | } | |
43f3e411 DE |
567 | |
568 | /* If the user gave us an absolute path, try to find the file in | |
569 | this symtab and use its absolute path. */ | |
570 | if (real_path != NULL) | |
571 | { | |
572 | const char *fullname = symtab_to_fullname (s); | |
573 | ||
574 | gdb_assert (IS_ABSOLUTE_PATH (real_path)); | |
575 | gdb_assert (IS_ABSOLUTE_PATH (name)); | |
7e785608 TV |
576 | gdb::unique_xmalloc_ptr<char> fullname_real_path |
577 | = gdb_realpath (fullname); | |
578 | fullname = fullname_real_path.get (); | |
43f3e411 DE |
579 | if (FILENAME_CMP (real_path, fullname) == 0) |
580 | { | |
14bc53a8 PA |
581 | if (callback (s)) |
582 | return true; | |
43f3e411 DE |
583 | continue; |
584 | } | |
585 | } | |
a94e8645 | 586 | } |
f8eba3c6 | 587 | } |
58d370e0 | 588 | |
14bc53a8 | 589 | return false; |
f8eba3c6 TT |
590 | } |
591 | ||
592 | /* Check for a symtab of a specific name; first in symtabs, then in | |
593 | psymtabs. *If* there is no '/' in the name, a match after a '/' | |
594 | in the symtab filename will also work. | |
595 | ||
14bc53a8 PA |
596 | Calls CALLBACK with each symtab that is found. If CALLBACK returns |
597 | true, the search stops. */ | |
f8eba3c6 TT |
598 | |
599 | void | |
600 | iterate_over_symtabs (const char *name, | |
14bc53a8 | 601 | gdb::function_view<bool (symtab *)> callback) |
f8eba3c6 | 602 | { |
14bc53a8 | 603 | gdb::unique_xmalloc_ptr<char> real_path; |
f8eba3c6 TT |
604 | |
605 | /* Here we are interested in canonicalizing an absolute path, not | |
606 | absolutizing a relative path. */ | |
607 | if (IS_ABSOLUTE_PATH (name)) | |
608 | { | |
14278e1f | 609 | real_path = gdb_realpath (name); |
14bc53a8 | 610 | gdb_assert (IS_ABSOLUTE_PATH (real_path.get ())); |
f8eba3c6 TT |
611 | } |
612 | ||
2030c079 | 613 | for (objfile *objfile : current_program_space->objfiles ()) |
14bc53a8 PA |
614 | { |
615 | if (iterate_over_some_symtabs (name, real_path.get (), | |
616 | objfile->compunit_symtabs, NULL, | |
617 | callback)) | |
f8eba3c6 | 618 | return; |
14bc53a8 | 619 | } |
f8eba3c6 | 620 | |
c906108c SS |
621 | /* Same search rules as above apply here, but now we look thru the |
622 | psymtabs. */ | |
623 | ||
2030c079 | 624 | for (objfile *objfile : current_program_space->objfiles ()) |
14bc53a8 | 625 | { |
4d080b46 TT |
626 | if (objfile->map_symtabs_matching_filename (name, real_path.get (), |
627 | callback)) | |
f8eba3c6 | 628 | return; |
14bc53a8 | 629 | } |
c906108c | 630 | } |
f8eba3c6 TT |
631 | |
632 | /* A wrapper for iterate_over_symtabs that returns the first matching | |
633 | symtab, or NULL. */ | |
634 | ||
635 | struct symtab * | |
636 | lookup_symtab (const char *name) | |
637 | { | |
638 | struct symtab *result = NULL; | |
639 | ||
14bc53a8 PA |
640 | iterate_over_symtabs (name, [&] (symtab *symtab) |
641 | { | |
642 | result = symtab; | |
643 | return true; | |
644 | }); | |
645 | ||
f8eba3c6 TT |
646 | return result; |
647 | } | |
648 | ||
c906108c SS |
649 | \f |
650 | /* Mangle a GDB method stub type. This actually reassembles the pieces of the | |
651 | full method name, which consist of the class name (from T), the unadorned | |
652 | method name from METHOD_ID, and the signature for the specific overload, | |
c378eb4e | 653 | specified by SIGNATURE_ID. Note that this function is g++ specific. */ |
c906108c SS |
654 | |
655 | char * | |
fba45db2 | 656 | gdb_mangle_name (struct type *type, int method_id, int signature_id) |
c906108c SS |
657 | { |
658 | int mangled_name_len; | |
659 | char *mangled_name; | |
660 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
661 | struct fn_field *method = &f[signature_id]; | |
0d5cff50 | 662 | const char *field_name = TYPE_FN_FIELDLIST_NAME (type, method_id); |
1d06ead6 | 663 | const char *physname = TYPE_FN_FIELD_PHYSNAME (f, signature_id); |
7d93a1e0 | 664 | const char *newname = type->name (); |
c906108c SS |
665 | |
666 | /* Does the form of physname indicate that it is the full mangled name | |
667 | of a constructor (not just the args)? */ | |
668 | int is_full_physname_constructor; | |
669 | ||
670 | int is_constructor; | |
015a42b4 | 671 | int is_destructor = is_destructor_name (physname); |
c906108c | 672 | /* Need a new type prefix. */ |
e6a959d6 PA |
673 | const char *const_prefix = method->is_const ? "C" : ""; |
674 | const char *volatile_prefix = method->is_volatile ? "V" : ""; | |
c906108c SS |
675 | char buf[20]; |
676 | int len = (newname == NULL ? 0 : strlen (newname)); | |
677 | ||
43630227 PS |
678 | /* Nothing to do if physname already contains a fully mangled v3 abi name |
679 | or an operator name. */ | |
680 | if ((physname[0] == '_' && physname[1] == 'Z') | |
681 | || is_operator_name (field_name)) | |
235d1e03 EZ |
682 | return xstrdup (physname); |
683 | ||
015a42b4 | 684 | is_full_physname_constructor = is_constructor_name (physname); |
c906108c | 685 | |
3e43a32a MS |
686 | is_constructor = is_full_physname_constructor |
687 | || (newname && strcmp (field_name, newname) == 0); | |
c906108c SS |
688 | |
689 | if (!is_destructor) | |
61012eef | 690 | is_destructor = (startswith (physname, "__dt")); |
c906108c SS |
691 | |
692 | if (is_destructor || is_full_physname_constructor) | |
693 | { | |
c5aa993b JM |
694 | mangled_name = (char *) xmalloc (strlen (physname) + 1); |
695 | strcpy (mangled_name, physname); | |
c906108c SS |
696 | return mangled_name; |
697 | } | |
698 | ||
699 | if (len == 0) | |
700 | { | |
8c042590 | 701 | xsnprintf (buf, sizeof (buf), "__%s%s", const_prefix, volatile_prefix); |
c906108c SS |
702 | } |
703 | else if (physname[0] == 't' || physname[0] == 'Q') | |
704 | { | |
705 | /* The physname for template and qualified methods already includes | |
dda83cd7 | 706 | the class name. */ |
8c042590 | 707 | xsnprintf (buf, sizeof (buf), "__%s%s", const_prefix, volatile_prefix); |
c906108c SS |
708 | newname = NULL; |
709 | len = 0; | |
710 | } | |
711 | else | |
712 | { | |
8c042590 PM |
713 | xsnprintf (buf, sizeof (buf), "__%s%s%d", const_prefix, |
714 | volatile_prefix, len); | |
c906108c SS |
715 | } |
716 | mangled_name_len = ((is_constructor ? 0 : strlen (field_name)) | |
235d1e03 | 717 | + strlen (buf) + len + strlen (physname) + 1); |
c906108c | 718 | |
433759f7 MS |
719 | mangled_name = (char *) xmalloc (mangled_name_len); |
720 | if (is_constructor) | |
721 | mangled_name[0] = '\0'; | |
722 | else | |
723 | strcpy (mangled_name, field_name); | |
724 | ||
c906108c SS |
725 | strcat (mangled_name, buf); |
726 | /* If the class doesn't have a name, i.e. newname NULL, then we just | |
727 | mangle it using 0 for the length of the class. Thus it gets mangled | |
c378eb4e | 728 | as something starting with `::' rather than `classname::'. */ |
c906108c SS |
729 | if (newname != NULL) |
730 | strcat (mangled_name, newname); | |
731 | ||
732 | strcat (mangled_name, physname); | |
733 | return (mangled_name); | |
734 | } | |
12af6855 | 735 | |
ff985671 | 736 | /* See symtab.h. */ |
eca864fe | 737 | |
b250c185 | 738 | void |
ff985671 TT |
739 | general_symbol_info::set_demangled_name (const char *name, |
740 | struct obstack *obstack) | |
b250c185 | 741 | { |
ff985671 | 742 | if (language () == language_ada) |
f85f34ed TT |
743 | { |
744 | if (name == NULL) | |
745 | { | |
ff985671 TT |
746 | ada_mangled = 0; |
747 | language_specific.obstack = obstack; | |
f85f34ed TT |
748 | } |
749 | else | |
750 | { | |
ff985671 TT |
751 | ada_mangled = 1; |
752 | language_specific.demangled_name = name; | |
f85f34ed TT |
753 | } |
754 | } | |
29df156d | 755 | else |
ff985671 | 756 | language_specific.demangled_name = name; |
b250c185 SW |
757 | } |
758 | ||
12af6855 | 759 | \f |
89aad1f9 | 760 | /* Initialize the language dependent portion of a symbol |
c378eb4e | 761 | depending upon the language for the symbol. */ |
eca864fe | 762 | |
89aad1f9 | 763 | void |
d3ecddab CB |
764 | general_symbol_info::set_language (enum language language, |
765 | struct obstack *obstack) | |
89aad1f9 | 766 | { |
d3ecddab | 767 | m_language = language; |
c1b5c1eb CB |
768 | if (language == language_cplus |
769 | || language == language_d | |
770 | || language == language_go | |
771 | || language == language_objc | |
772 | || language == language_fortran) | |
89aad1f9 | 773 | { |
ff985671 | 774 | set_demangled_name (NULL, obstack); |
f85f34ed | 775 | } |
c1b5c1eb | 776 | else if (language == language_ada) |
f85f34ed | 777 | { |
d3ecddab CB |
778 | gdb_assert (ada_mangled == 0); |
779 | language_specific.obstack = obstack; | |
89aad1f9 | 780 | } |
89aad1f9 EZ |
781 | else |
782 | { | |
d3ecddab | 783 | memset (&language_specific, 0, sizeof (language_specific)); |
89aad1f9 EZ |
784 | } |
785 | } | |
786 | ||
2de7ced7 DJ |
787 | /* Functions to initialize a symbol's mangled name. */ |
788 | ||
04a679b8 TT |
789 | /* Objects of this type are stored in the demangled name hash table. */ |
790 | struct demangled_name_entry | |
791 | { | |
3a494279 CB |
792 | demangled_name_entry (gdb::string_view mangled_name) |
793 | : mangled (mangled_name) {} | |
794 | ||
7bb43059 | 795 | gdb::string_view mangled; |
403772ef | 796 | enum language language; |
5396ae17 | 797 | gdb::unique_xmalloc_ptr<char> demangled; |
04a679b8 TT |
798 | }; |
799 | ||
800 | /* Hash function for the demangled name hash. */ | |
eca864fe | 801 | |
04a679b8 TT |
802 | static hashval_t |
803 | hash_demangled_name_entry (const void *data) | |
804 | { | |
19ba03f4 SM |
805 | const struct demangled_name_entry *e |
806 | = (const struct demangled_name_entry *) data; | |
433759f7 | 807 | |
1a8605a8 | 808 | return gdb::string_view_hash () (e->mangled); |
04a679b8 TT |
809 | } |
810 | ||
811 | /* Equality function for the demangled name hash. */ | |
eca864fe | 812 | |
04a679b8 TT |
813 | static int |
814 | eq_demangled_name_entry (const void *a, const void *b) | |
815 | { | |
19ba03f4 SM |
816 | const struct demangled_name_entry *da |
817 | = (const struct demangled_name_entry *) a; | |
818 | const struct demangled_name_entry *db | |
819 | = (const struct demangled_name_entry *) b; | |
433759f7 | 820 | |
7bb43059 | 821 | return da->mangled == db->mangled; |
04a679b8 TT |
822 | } |
823 | ||
3a494279 CB |
824 | static void |
825 | free_demangled_name_entry (void *data) | |
826 | { | |
827 | struct demangled_name_entry *e | |
828 | = (struct demangled_name_entry *) data; | |
829 | ||
830 | e->~demangled_name_entry(); | |
831 | } | |
832 | ||
2de7ced7 DJ |
833 | /* Create the hash table used for demangled names. Each hash entry is |
834 | a pair of strings; one for the mangled name and one for the demangled | |
835 | name. The entry is hashed via just the mangled name. */ | |
836 | ||
837 | static void | |
0f14768a | 838 | create_demangled_names_hash (struct objfile_per_bfd_storage *per_bfd) |
2de7ced7 DJ |
839 | { |
840 | /* Choose 256 as the starting size of the hash table, somewhat arbitrarily. | |
9af17804 | 841 | The hash table code will round this up to the next prime number. |
2de7ced7 | 842 | Choosing a much larger table size wastes memory, and saves only about |
f8bab2d6 CB |
843 | 1% in symbol reading. However, if the minsym count is already |
844 | initialized (e.g. because symbol name setting was deferred to | |
845 | a background thread) we can initialize the hashtable with a count | |
846 | based on that, because we will almost certainly have at least that | |
847 | many entries. If we have a nonzero number but less than 256, | |
848 | we still stay with 256 to have some space for psymbols, etc. */ | |
849 | ||
850 | /* htab will expand the table when it is 3/4th full, so we account for that | |
851 | here. +2 to round up. */ | |
852 | int minsym_based_count = (per_bfd->minimal_symbol_count + 2) / 3 * 4; | |
853 | int count = std::max (per_bfd->minimal_symbol_count, minsym_based_count); | |
2de7ced7 | 854 | |
db92718b | 855 | per_bfd->demangled_names_hash.reset (htab_create_alloc |
f8bab2d6 | 856 | (count, hash_demangled_name_entry, eq_demangled_name_entry, |
3a494279 | 857 | free_demangled_name_entry, xcalloc, xfree)); |
2de7ced7 | 858 | } |
12af6855 | 859 | |
d55c9a68 | 860 | /* See symtab.h */ |
12af6855 | 861 | |
3456e70c | 862 | gdb::unique_xmalloc_ptr<char> |
2de7ced7 DJ |
863 | symbol_find_demangled_name (struct general_symbol_info *gsymbol, |
864 | const char *mangled) | |
12af6855 | 865 | { |
3456e70c | 866 | gdb::unique_xmalloc_ptr<char> demangled; |
8b302db8 | 867 | int i; |
12af6855 | 868 | |
c1b5c1eb CB |
869 | if (gsymbol->language () == language_unknown) |
870 | gsymbol->m_language = language_auto; | |
1bae87b9 | 871 | |
c1b5c1eb | 872 | if (gsymbol->language () != language_auto) |
1bae87b9 | 873 | { |
c1b5c1eb | 874 | const struct language_defn *lang = language_def (gsymbol->language ()); |
8b302db8 | 875 | |
6f827019 | 876 | lang->sniff_from_mangled_name (mangled, &demangled); |
8b302db8 | 877 | return demangled; |
6aecb9c2 | 878 | } |
8b302db8 TT |
879 | |
880 | for (i = language_unknown; i < nr_languages; ++i) | |
a766d390 | 881 | { |
8b302db8 TT |
882 | enum language l = (enum language) i; |
883 | const struct language_defn *lang = language_def (l); | |
884 | ||
6f827019 | 885 | if (lang->sniff_from_mangled_name (mangled, &demangled)) |
a766d390 | 886 | { |
c1b5c1eb | 887 | gsymbol->m_language = l; |
a766d390 DE |
888 | return demangled; |
889 | } | |
890 | } | |
891 | ||
2de7ced7 DJ |
892 | return NULL; |
893 | } | |
894 | ||
980cae7a | 895 | /* Set both the mangled and demangled (if any) names for GSYMBOL based |
04a679b8 TT |
896 | on LINKAGE_NAME and LEN. Ordinarily, NAME is copied onto the |
897 | objfile's obstack; but if COPY_NAME is 0 and if NAME is | |
898 | NUL-terminated, then this function assumes that NAME is already | |
899 | correctly saved (either permanently or with a lifetime tied to the | |
900 | objfile), and it will not be copied. | |
901 | ||
902 | The hash table corresponding to OBJFILE is used, and the memory | |
84a1243b | 903 | comes from the per-BFD storage_obstack. LINKAGE_NAME is copied, |
04a679b8 | 904 | so the pointer can be discarded after calling this function. */ |
2de7ced7 DJ |
905 | |
906 | void | |
4d4eaa30 CB |
907 | general_symbol_info::compute_and_set_names (gdb::string_view linkage_name, |
908 | bool copy_name, | |
909 | objfile_per_bfd_storage *per_bfd, | |
910 | gdb::optional<hashval_t> hash) | |
2de7ced7 | 911 | { |
04a679b8 | 912 | struct demangled_name_entry **slot; |
2de7ced7 | 913 | |
4d4eaa30 | 914 | if (language () == language_ada) |
b06ead72 JB |
915 | { |
916 | /* In Ada, we do the symbol lookups using the mangled name, so | |
dda83cd7 | 917 | we can save some space by not storing the demangled name. */ |
92174eea | 918 | if (!copy_name) |
4d4eaa30 | 919 | m_name = linkage_name.data (); |
04a679b8 | 920 | else |
869d8950 TT |
921 | m_name = obstack_strndup (&per_bfd->storage_obstack, |
922 | linkage_name.data (), | |
923 | linkage_name.length ()); | |
ff985671 | 924 | set_demangled_name (NULL, &per_bfd->storage_obstack); |
b06ead72 JB |
925 | |
926 | return; | |
927 | } | |
928 | ||
84a1243b | 929 | if (per_bfd->demangled_names_hash == NULL) |
0f14768a | 930 | create_demangled_names_hash (per_bfd); |
04a679b8 | 931 | |
31edb802 | 932 | struct demangled_name_entry entry (linkage_name); |
e76b2246 CB |
933 | if (!hash.has_value ()) |
934 | hash = hash_demangled_name_entry (&entry); | |
04a679b8 | 935 | slot = ((struct demangled_name_entry **) |
dda83cd7 | 936 | htab_find_slot_with_hash (per_bfd->demangled_names_hash.get (), |
e76b2246 | 937 | &entry, *hash, INSERT)); |
2de7ced7 | 938 | |
57d75002 CB |
939 | /* The const_cast is safe because the only reason it is already |
940 | initialized is if we purposefully set it from a background | |
941 | thread to avoid doing the work here. However, it is still | |
942 | allocated from the heap and needs to be freed by us, just | |
943 | like if we called symbol_find_demangled_name here. If this is | |
944 | nullptr, we call symbol_find_demangled_name below, but we put | |
945 | this smart pointer here to be sure that we don't leak this name. */ | |
946 | gdb::unique_xmalloc_ptr<char> demangled_name | |
947 | (const_cast<char *> (language_specific.demangled_name)); | |
948 | ||
2de7ced7 | 949 | /* If this name is not in the hash table, add it. */ |
a766d390 DE |
950 | if (*slot == NULL |
951 | /* A C version of the symbol may have already snuck into the table. | |
952 | This happens to, e.g., main.init (__go_init_main). Cope. */ | |
4d4eaa30 | 953 | || (language () == language_go && (*slot)->demangled == nullptr)) |
2de7ced7 | 954 | { |
0c921b21 | 955 | /* A 0-terminated copy of the linkage name. Callers must set COPY_NAME |
dda83cd7 SM |
956 | to true if the string might not be nullterminated. We have to make |
957 | this copy because demangling needs a nullterminated string. */ | |
31edb802 | 958 | gdb::string_view linkage_name_copy; |
0c921b21 CB |
959 | if (copy_name) |
960 | { | |
31edb802 CB |
961 | char *alloc_name = (char *) alloca (linkage_name.length () + 1); |
962 | memcpy (alloc_name, linkage_name.data (), linkage_name.length ()); | |
963 | alloc_name[linkage_name.length ()] = '\0'; | |
0c921b21 | 964 | |
31edb802 CB |
965 | linkage_name_copy = gdb::string_view (alloc_name, |
966 | linkage_name.length ()); | |
0c921b21 CB |
967 | } |
968 | else | |
969 | linkage_name_copy = linkage_name; | |
970 | ||
57d75002 | 971 | if (demangled_name.get () == nullptr) |
3456e70c TT |
972 | demangled_name |
973 | = symbol_find_demangled_name (this, linkage_name_copy.data ()); | |
2de7ced7 | 974 | |
04a679b8 | 975 | /* Suppose we have demangled_name==NULL, copy_name==0, and |
9c37b5ae | 976 | linkage_name_copy==linkage_name. In this case, we already have the |
04a679b8 TT |
977 | mangled name saved, and we don't have a demangled name. So, |
978 | you might think we could save a little space by not recording | |
979 | this in the hash table at all. | |
5396ae17 | 980 | |
04a679b8 TT |
981 | It turns out that it is actually important to still save such |
982 | an entry in the hash table, because storing this name gives | |
705b5767 | 983 | us better bcache hit rates for partial symbols. */ |
0c921b21 | 984 | if (!copy_name) |
04a679b8 | 985 | { |
224c3ddb SM |
986 | *slot |
987 | = ((struct demangled_name_entry *) | |
988 | obstack_alloc (&per_bfd->storage_obstack, | |
5396ae17 | 989 | sizeof (demangled_name_entry))); |
31edb802 | 990 | new (*slot) demangled_name_entry (linkage_name); |
04a679b8 TT |
991 | } |
992 | else | |
993 | { | |
994 | /* If we must copy the mangled name, put it directly after | |
5396ae17 | 995 | the struct so we can have a single allocation. */ |
224c3ddb SM |
996 | *slot |
997 | = ((struct demangled_name_entry *) | |
998 | obstack_alloc (&per_bfd->storage_obstack, | |
31edb802 CB |
999 | sizeof (demangled_name_entry) |
1000 | + linkage_name.length () + 1)); | |
5396ae17 | 1001 | char *mangled_ptr = reinterpret_cast<char *> (*slot + 1); |
31edb802 CB |
1002 | memcpy (mangled_ptr, linkage_name.data (), linkage_name.length ()); |
1003 | mangled_ptr [linkage_name.length ()] = '\0'; | |
3a494279 | 1004 | new (*slot) demangled_name_entry |
31edb802 | 1005 | (gdb::string_view (mangled_ptr, linkage_name.length ())); |
04a679b8 | 1006 | } |
d55c9a68 | 1007 | (*slot)->demangled = std::move (demangled_name); |
4d4eaa30 | 1008 | (*slot)->language = language (); |
2de7ced7 | 1009 | } |
4d4eaa30 CB |
1010 | else if (language () == language_unknown || language () == language_auto) |
1011 | m_language = (*slot)->language; | |
2de7ced7 | 1012 | |
4d4eaa30 | 1013 | m_name = (*slot)->mangled.data (); |
ff985671 | 1014 | set_demangled_name ((*slot)->demangled.get (), &per_bfd->storage_obstack); |
2de7ced7 DJ |
1015 | } |
1016 | ||
c9d95fa3 | 1017 | /* See symtab.h. */ |
22abf04a | 1018 | |
0d5cff50 | 1019 | const char * |
c9d95fa3 | 1020 | general_symbol_info::natural_name () const |
22abf04a | 1021 | { |
c1b5c1eb | 1022 | switch (language ()) |
22abf04a | 1023 | { |
1f8173e6 | 1024 | case language_cplus: |
6aecb9c2 | 1025 | case language_d: |
a766d390 | 1026 | case language_go: |
1f8173e6 | 1027 | case language_objc: |
f55ee35c | 1028 | case language_fortran: |
8c87a452 | 1029 | case language_rust: |
7151c1af TT |
1030 | if (language_specific.demangled_name != nullptr) |
1031 | return language_specific.demangled_name; | |
1f8173e6 PH |
1032 | break; |
1033 | case language_ada: | |
c9d95fa3 | 1034 | return ada_decode_symbol (this); |
1f8173e6 PH |
1035 | default: |
1036 | break; | |
22abf04a | 1037 | } |
4d4eaa30 | 1038 | return linkage_name (); |
22abf04a DC |
1039 | } |
1040 | ||
c9d95fa3 | 1041 | /* See symtab.h. */ |
eca864fe | 1042 | |
0d5cff50 | 1043 | const char * |
c9d95fa3 | 1044 | general_symbol_info::demangled_name () const |
9cc0d196 | 1045 | { |
c6e5ee5e SDJ |
1046 | const char *dem_name = NULL; |
1047 | ||
c1b5c1eb | 1048 | switch (language ()) |
1f8173e6 PH |
1049 | { |
1050 | case language_cplus: | |
6aecb9c2 | 1051 | case language_d: |
a766d390 | 1052 | case language_go: |
1f8173e6 | 1053 | case language_objc: |
f55ee35c | 1054 | case language_fortran: |
8c87a452 | 1055 | case language_rust: |
7151c1af | 1056 | dem_name = language_specific.demangled_name; |
1f8173e6 PH |
1057 | break; |
1058 | case language_ada: | |
c9d95fa3 | 1059 | dem_name = ada_decode_symbol (this); |
1f8173e6 PH |
1060 | break; |
1061 | default: | |
1062 | break; | |
1063 | } | |
c6e5ee5e | 1064 | return dem_name; |
9cc0d196 | 1065 | } |
fe39c653 | 1066 | |
c9d95fa3 | 1067 | /* See symtab.h. */ |
eca864fe | 1068 | |
0d5cff50 | 1069 | const char * |
c9d95fa3 | 1070 | general_symbol_info::search_name () const |
fc062ac6 | 1071 | { |
c1b5c1eb | 1072 | if (language () == language_ada) |
4d4eaa30 | 1073 | return linkage_name (); |
1f8173e6 | 1074 | else |
c9d95fa3 | 1075 | return natural_name (); |
4725b721 | 1076 | } |
b5ec771e PA |
1077 | |
1078 | /* See symtab.h. */ | |
1079 | ||
ebbc3a7d AB |
1080 | struct obj_section * |
1081 | general_symbol_info::obj_section (const struct objfile *objfile) const | |
1082 | { | |
a52d653e AB |
1083 | if (section_index () >= 0) |
1084 | return &objfile->sections[section_index ()]; | |
ebbc3a7d AB |
1085 | return nullptr; |
1086 | } | |
1087 | ||
1088 | /* See symtab.h. */ | |
1089 | ||
b5ec771e PA |
1090 | bool |
1091 | symbol_matches_search_name (const struct general_symbol_info *gsymbol, | |
1092 | const lookup_name_info &name) | |
1093 | { | |
1094 | symbol_name_matcher_ftype *name_match | |
c9debfb9 | 1095 | = language_def (gsymbol->language ())->get_symbol_name_matcher (name); |
c9d95fa3 | 1096 | return name_match (gsymbol->search_name (), name, NULL); |
b5ec771e PA |
1097 | } |
1098 | ||
c906108c SS |
1099 | \f |
1100 | ||
ececd218 | 1101 | /* Return true if the two sections are the same, or if they could |
94277a38 DJ |
1102 | plausibly be copies of each other, one in an original object |
1103 | file and another in a separated debug file. */ | |
1104 | ||
ececd218 | 1105 | bool |
714835d5 UW |
1106 | matching_obj_sections (struct obj_section *obj_first, |
1107 | struct obj_section *obj_second) | |
94277a38 | 1108 | { |
714835d5 UW |
1109 | asection *first = obj_first? obj_first->the_bfd_section : NULL; |
1110 | asection *second = obj_second? obj_second->the_bfd_section : NULL; | |
94277a38 DJ |
1111 | |
1112 | /* If they're the same section, then they match. */ | |
1113 | if (first == second) | |
ececd218 | 1114 | return true; |
94277a38 DJ |
1115 | |
1116 | /* If either is NULL, give up. */ | |
1117 | if (first == NULL || second == NULL) | |
ececd218 | 1118 | return false; |
94277a38 DJ |
1119 | |
1120 | /* This doesn't apply to absolute symbols. */ | |
1121 | if (first->owner == NULL || second->owner == NULL) | |
ececd218 | 1122 | return false; |
94277a38 DJ |
1123 | |
1124 | /* If they're in the same object file, they must be different sections. */ | |
1125 | if (first->owner == second->owner) | |
ececd218 | 1126 | return false; |
94277a38 DJ |
1127 | |
1128 | /* Check whether the two sections are potentially corresponding. They must | |
1129 | have the same size, address, and name. We can't compare section indexes, | |
1130 | which would be more reliable, because some sections may have been | |
1131 | stripped. */ | |
fd361982 | 1132 | if (bfd_section_size (first) != bfd_section_size (second)) |
ececd218 | 1133 | return false; |
94277a38 | 1134 | |
818f79f6 | 1135 | /* In-memory addresses may start at a different offset, relativize them. */ |
fd361982 AM |
1136 | if (bfd_section_vma (first) - bfd_get_start_address (first->owner) |
1137 | != bfd_section_vma (second) - bfd_get_start_address (second->owner)) | |
ececd218 | 1138 | return false; |
94277a38 | 1139 | |
fd361982 AM |
1140 | if (bfd_section_name (first) == NULL |
1141 | || bfd_section_name (second) == NULL | |
1142 | || strcmp (bfd_section_name (first), bfd_section_name (second)) != 0) | |
ececd218 | 1143 | return false; |
94277a38 DJ |
1144 | |
1145 | /* Otherwise check that they are in corresponding objfiles. */ | |
1146 | ||
9d7c67bf | 1147 | struct objfile *obj = NULL; |
2030c079 | 1148 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
1149 | if (objfile->obfd == first->owner) |
1150 | { | |
1151 | obj = objfile; | |
1152 | break; | |
1153 | } | |
94277a38 DJ |
1154 | gdb_assert (obj != NULL); |
1155 | ||
1156 | if (obj->separate_debug_objfile != NULL | |
1157 | && obj->separate_debug_objfile->obfd == second->owner) | |
ececd218 | 1158 | return true; |
94277a38 DJ |
1159 | if (obj->separate_debug_objfile_backlink != NULL |
1160 | && obj->separate_debug_objfile_backlink->obfd == second->owner) | |
ececd218 | 1161 | return true; |
94277a38 | 1162 | |
ececd218 | 1163 | return false; |
94277a38 | 1164 | } |
c5aa993b | 1165 | |
2097ae25 DE |
1166 | /* See symtab.h. */ |
1167 | ||
1168 | void | |
1169 | expand_symtab_containing_pc (CORE_ADDR pc, struct obj_section *section) | |
c906108c | 1170 | { |
77e371c0 | 1171 | struct bound_minimal_symbol msymbol; |
8a48e967 DJ |
1172 | |
1173 | /* If we know that this is not a text address, return failure. This is | |
1174 | necessary because we loop based on texthigh and textlow, which do | |
1175 | not include the data ranges. */ | |
77e371c0 | 1176 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); |
1ed9f74e | 1177 | if (msymbol.minsym && msymbol.minsym->data_p ()) |
2097ae25 | 1178 | return; |
c906108c | 1179 | |
2030c079 | 1180 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 | 1181 | { |
4d080b46 TT |
1182 | struct compunit_symtab *cust |
1183 | = objfile->find_pc_sect_compunit_symtab (msymbol, pc, section, 0); | |
aed57c53 TT |
1184 | if (cust) |
1185 | return; | |
1186 | } | |
c906108c | 1187 | } |
c906108c | 1188 | \f |
f57d2163 DE |
1189 | /* Hash function for the symbol cache. */ |
1190 | ||
1191 | static unsigned int | |
1192 | hash_symbol_entry (const struct objfile *objfile_context, | |
1193 | const char *name, domain_enum domain) | |
1194 | { | |
1195 | unsigned int hash = (uintptr_t) objfile_context; | |
1196 | ||
1197 | if (name != NULL) | |
1198 | hash += htab_hash_string (name); | |
1199 | ||
2c26b84f DE |
1200 | /* Because of symbol_matches_domain we need VAR_DOMAIN and STRUCT_DOMAIN |
1201 | to map to the same slot. */ | |
1202 | if (domain == STRUCT_DOMAIN) | |
1203 | hash += VAR_DOMAIN * 7; | |
1204 | else | |
1205 | hash += domain * 7; | |
f57d2163 DE |
1206 | |
1207 | return hash; | |
1208 | } | |
1209 | ||
1210 | /* Equality function for the symbol cache. */ | |
1211 | ||
1212 | static int | |
1213 | eq_symbol_entry (const struct symbol_cache_slot *slot, | |
1214 | const struct objfile *objfile_context, | |
1215 | const char *name, domain_enum domain) | |
1216 | { | |
1217 | const char *slot_name; | |
1218 | domain_enum slot_domain; | |
1219 | ||
1220 | if (slot->state == SYMBOL_SLOT_UNUSED) | |
1221 | return 0; | |
1222 | ||
1223 | if (slot->objfile_context != objfile_context) | |
1224 | return 0; | |
1225 | ||
1226 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
1227 | { | |
1228 | slot_name = slot->value.not_found.name; | |
1229 | slot_domain = slot->value.not_found.domain; | |
1230 | } | |
1231 | else | |
1232 | { | |
987012b8 | 1233 | slot_name = slot->value.found.symbol->search_name (); |
6c9c307c | 1234 | slot_domain = slot->value.found.symbol->domain (); |
f57d2163 DE |
1235 | } |
1236 | ||
1237 | /* NULL names match. */ | |
1238 | if (slot_name == NULL && name == NULL) | |
1239 | { | |
1240 | /* But there's no point in calling symbol_matches_domain in the | |
1241 | SYMBOL_SLOT_FOUND case. */ | |
1242 | if (slot_domain != domain) | |
1243 | return 0; | |
1244 | } | |
1245 | else if (slot_name != NULL && name != NULL) | |
1246 | { | |
b5ec771e PA |
1247 | /* It's important that we use the same comparison that was done |
1248 | the first time through. If the slot records a found symbol, | |
1249 | then this means using the symbol name comparison function of | |
987012b8 | 1250 | the symbol's language with symbol->search_name (). See |
b5ec771e PA |
1251 | dictionary.c. It also means using symbol_matches_domain for |
1252 | found symbols. See block.c. | |
f57d2163 DE |
1253 | |
1254 | If the slot records a not-found symbol, then require a precise match. | |
1255 | We could still be lax with whitespace like strcmp_iw though. */ | |
1256 | ||
1257 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
1258 | { | |
1259 | if (strcmp (slot_name, name) != 0) | |
1260 | return 0; | |
1261 | if (slot_domain != domain) | |
1262 | return 0; | |
1263 | } | |
1264 | else | |
1265 | { | |
d12307c1 | 1266 | struct symbol *sym = slot->value.found.symbol; |
b5ec771e | 1267 | lookup_name_info lookup_name (name, symbol_name_match_type::FULL); |
f57d2163 | 1268 | |
81e32b6a | 1269 | if (!symbol_matches_search_name (sym, lookup_name)) |
f57d2163 | 1270 | return 0; |
b5ec771e | 1271 | |
c1b5c1eb | 1272 | if (!symbol_matches_domain (sym->language (), slot_domain, domain)) |
f57d2163 DE |
1273 | return 0; |
1274 | } | |
1275 | } | |
1276 | else | |
1277 | { | |
1278 | /* Only one name is NULL. */ | |
1279 | return 0; | |
1280 | } | |
1281 | ||
1282 | return 1; | |
1283 | } | |
1284 | ||
1285 | /* Given a cache of size SIZE, return the size of the struct (with variable | |
1286 | length array) in bytes. */ | |
1287 | ||
1288 | static size_t | |
1289 | symbol_cache_byte_size (unsigned int size) | |
1290 | { | |
1291 | return (sizeof (struct block_symbol_cache) | |
1292 | + ((size - 1) * sizeof (struct symbol_cache_slot))); | |
1293 | } | |
1294 | ||
1295 | /* Resize CACHE. */ | |
1296 | ||
1297 | static void | |
1298 | resize_symbol_cache (struct symbol_cache *cache, unsigned int new_size) | |
1299 | { | |
1300 | /* If there's no change in size, don't do anything. | |
1301 | All caches have the same size, so we can just compare with the size | |
1302 | of the global symbols cache. */ | |
1303 | if ((cache->global_symbols != NULL | |
1304 | && cache->global_symbols->size == new_size) | |
1305 | || (cache->global_symbols == NULL | |
1306 | && new_size == 0)) | |
1307 | return; | |
1308 | ||
82f910ea PW |
1309 | destroy_block_symbol_cache (cache->global_symbols); |
1310 | destroy_block_symbol_cache (cache->static_symbols); | |
f57d2163 DE |
1311 | |
1312 | if (new_size == 0) | |
1313 | { | |
1314 | cache->global_symbols = NULL; | |
1315 | cache->static_symbols = NULL; | |
1316 | } | |
1317 | else | |
1318 | { | |
1319 | size_t total_size = symbol_cache_byte_size (new_size); | |
1320 | ||
224c3ddb SM |
1321 | cache->global_symbols |
1322 | = (struct block_symbol_cache *) xcalloc (1, total_size); | |
1323 | cache->static_symbols | |
1324 | = (struct block_symbol_cache *) xcalloc (1, total_size); | |
f57d2163 DE |
1325 | cache->global_symbols->size = new_size; |
1326 | cache->static_symbols->size = new_size; | |
1327 | } | |
1328 | } | |
1329 | ||
f57d2163 DE |
1330 | /* Return the symbol cache of PSPACE. |
1331 | Create one if it doesn't exist yet. */ | |
1332 | ||
1333 | static struct symbol_cache * | |
1334 | get_symbol_cache (struct program_space *pspace) | |
1335 | { | |
3017b94d | 1336 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 DE |
1337 | |
1338 | if (cache == NULL) | |
1339 | { | |
3017b94d TT |
1340 | cache = symbol_cache_key.emplace (pspace); |
1341 | resize_symbol_cache (cache, symbol_cache_size); | |
f57d2163 DE |
1342 | } |
1343 | ||
1344 | return cache; | |
1345 | } | |
1346 | ||
f57d2163 DE |
1347 | /* Set the size of the symbol cache in all program spaces. */ |
1348 | ||
1349 | static void | |
1350 | set_symbol_cache_size (unsigned int new_size) | |
1351 | { | |
94c93c35 | 1352 | for (struct program_space *pspace : program_spaces) |
f57d2163 | 1353 | { |
3017b94d | 1354 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 DE |
1355 | |
1356 | /* The pspace could have been created but not have a cache yet. */ | |
1357 | if (cache != NULL) | |
1358 | resize_symbol_cache (cache, new_size); | |
1359 | } | |
1360 | } | |
1361 | ||
1362 | /* Called when symbol-cache-size is set. */ | |
1363 | ||
1364 | static void | |
eb4c3f4a | 1365 | set_symbol_cache_size_handler (const char *args, int from_tty, |
f57d2163 DE |
1366 | struct cmd_list_element *c) |
1367 | { | |
1368 | if (new_symbol_cache_size > MAX_SYMBOL_CACHE_SIZE) | |
1369 | { | |
1370 | /* Restore the previous value. | |
1371 | This is the value the "show" command prints. */ | |
1372 | new_symbol_cache_size = symbol_cache_size; | |
1373 | ||
1374 | error (_("Symbol cache size is too large, max is %u."), | |
1375 | MAX_SYMBOL_CACHE_SIZE); | |
1376 | } | |
1377 | symbol_cache_size = new_symbol_cache_size; | |
1378 | ||
1379 | set_symbol_cache_size (symbol_cache_size); | |
1380 | } | |
1381 | ||
1382 | /* Lookup symbol NAME,DOMAIN in BLOCK in the symbol cache of PSPACE. | |
1383 | OBJFILE_CONTEXT is the current objfile, which may be NULL. | |
1384 | The result is the symbol if found, SYMBOL_LOOKUP_FAILED if a previous lookup | |
1385 | failed (and thus this one will too), or NULL if the symbol is not present | |
1386 | in the cache. | |
d0509ba4 CB |
1387 | *BSC_PTR and *SLOT_PTR are set to the cache and slot of the symbol, which |
1388 | can be used to save the result of a full lookup attempt. */ | |
f57d2163 | 1389 | |
d12307c1 | 1390 | static struct block_symbol |
f57d2163 | 1391 | symbol_cache_lookup (struct symbol_cache *cache, |
ddbcedf5 | 1392 | struct objfile *objfile_context, enum block_enum block, |
f57d2163 DE |
1393 | const char *name, domain_enum domain, |
1394 | struct block_symbol_cache **bsc_ptr, | |
1395 | struct symbol_cache_slot **slot_ptr) | |
1396 | { | |
1397 | struct block_symbol_cache *bsc; | |
1398 | unsigned int hash; | |
1399 | struct symbol_cache_slot *slot; | |
1400 | ||
1401 | if (block == GLOBAL_BLOCK) | |
1402 | bsc = cache->global_symbols; | |
1403 | else | |
1404 | bsc = cache->static_symbols; | |
1405 | if (bsc == NULL) | |
1406 | { | |
1407 | *bsc_ptr = NULL; | |
1408 | *slot_ptr = NULL; | |
6640a367 | 1409 | return {}; |
f57d2163 DE |
1410 | } |
1411 | ||
1412 | hash = hash_symbol_entry (objfile_context, name, domain); | |
1413 | slot = bsc->symbols + hash % bsc->size; | |
f57d2163 | 1414 | |
d0509ba4 CB |
1415 | *bsc_ptr = bsc; |
1416 | *slot_ptr = slot; | |
1417 | ||
f57d2163 DE |
1418 | if (eq_symbol_entry (slot, objfile_context, name, domain)) |
1419 | { | |
b1e678d9 AB |
1420 | symbol_lookup_debug_printf ("%s block symbol cache hit%s for %s, %s", |
1421 | block == GLOBAL_BLOCK ? "Global" : "Static", | |
1422 | slot->state == SYMBOL_SLOT_NOT_FOUND | |
1423 | ? " (not found)" : "", name, | |
1424 | domain_name (domain)); | |
f57d2163 DE |
1425 | ++bsc->hits; |
1426 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
1427 | return SYMBOL_LOOKUP_FAILED; | |
1428 | return slot->value.found; | |
1429 | } | |
1430 | ||
2c26b84f DE |
1431 | /* Symbol is not present in the cache. */ |
1432 | ||
b1e678d9 AB |
1433 | symbol_lookup_debug_printf ("%s block symbol cache miss for %s, %s", |
1434 | block == GLOBAL_BLOCK ? "Global" : "Static", | |
1435 | name, domain_name (domain)); | |
f57d2163 | 1436 | ++bsc->misses; |
6640a367 | 1437 | return {}; |
f57d2163 DE |
1438 | } |
1439 | ||
f57d2163 DE |
1440 | /* Mark SYMBOL as found in SLOT. |
1441 | OBJFILE_CONTEXT is the current objfile when the lookup was done, or NULL | |
1442 | if it's not needed to distinguish lookups (STATIC_BLOCK). It is *not* | |
1443 | necessarily the objfile the symbol was found in. */ | |
1444 | ||
1445 | static void | |
1446 | symbol_cache_mark_found (struct block_symbol_cache *bsc, | |
1447 | struct symbol_cache_slot *slot, | |
1448 | struct objfile *objfile_context, | |
d12307c1 PMR |
1449 | struct symbol *symbol, |
1450 | const struct block *block) | |
f57d2163 DE |
1451 | { |
1452 | if (bsc == NULL) | |
1453 | return; | |
1454 | if (slot->state != SYMBOL_SLOT_UNUSED) | |
1455 | { | |
1456 | ++bsc->collisions; | |
1457 | symbol_cache_clear_slot (slot); | |
1458 | } | |
1459 | slot->state = SYMBOL_SLOT_FOUND; | |
1460 | slot->objfile_context = objfile_context; | |
d12307c1 PMR |
1461 | slot->value.found.symbol = symbol; |
1462 | slot->value.found.block = block; | |
f57d2163 DE |
1463 | } |
1464 | ||
1465 | /* Mark symbol NAME, DOMAIN as not found in SLOT. | |
1466 | OBJFILE_CONTEXT is the current objfile when the lookup was done, or NULL | |
1467 | if it's not needed to distinguish lookups (STATIC_BLOCK). */ | |
1468 | ||
1469 | static void | |
1470 | symbol_cache_mark_not_found (struct block_symbol_cache *bsc, | |
1471 | struct symbol_cache_slot *slot, | |
1472 | struct objfile *objfile_context, | |
1473 | const char *name, domain_enum domain) | |
1474 | { | |
1475 | if (bsc == NULL) | |
1476 | return; | |
1477 | if (slot->state != SYMBOL_SLOT_UNUSED) | |
1478 | { | |
1479 | ++bsc->collisions; | |
1480 | symbol_cache_clear_slot (slot); | |
1481 | } | |
1482 | slot->state = SYMBOL_SLOT_NOT_FOUND; | |
1483 | slot->objfile_context = objfile_context; | |
1484 | slot->value.not_found.name = xstrdup (name); | |
1485 | slot->value.not_found.domain = domain; | |
1486 | } | |
1487 | ||
1488 | /* Flush the symbol cache of PSPACE. */ | |
1489 | ||
1490 | static void | |
1491 | symbol_cache_flush (struct program_space *pspace) | |
1492 | { | |
3017b94d | 1493 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 | 1494 | int pass; |
f57d2163 DE |
1495 | |
1496 | if (cache == NULL) | |
1497 | return; | |
1498 | if (cache->global_symbols == NULL) | |
1499 | { | |
1500 | gdb_assert (symbol_cache_size == 0); | |
1501 | gdb_assert (cache->static_symbols == NULL); | |
1502 | return; | |
1503 | } | |
1504 | ||
1505 | /* If the cache is untouched since the last flush, early exit. | |
1506 | This is important for performance during the startup of a program linked | |
1507 | with 100s (or 1000s) of shared libraries. */ | |
1508 | if (cache->global_symbols->misses == 0 | |
1509 | && cache->static_symbols->misses == 0) | |
1510 | return; | |
1511 | ||
1512 | gdb_assert (cache->global_symbols->size == symbol_cache_size); | |
1513 | gdb_assert (cache->static_symbols->size == symbol_cache_size); | |
1514 | ||
1515 | for (pass = 0; pass < 2; ++pass) | |
1516 | { | |
1517 | struct block_symbol_cache *bsc | |
1518 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1519 | unsigned int i; | |
1520 | ||
1521 | for (i = 0; i < bsc->size; ++i) | |
1522 | symbol_cache_clear_slot (&bsc->symbols[i]); | |
1523 | } | |
1524 | ||
1525 | cache->global_symbols->hits = 0; | |
1526 | cache->global_symbols->misses = 0; | |
1527 | cache->global_symbols->collisions = 0; | |
1528 | cache->static_symbols->hits = 0; | |
1529 | cache->static_symbols->misses = 0; | |
1530 | cache->static_symbols->collisions = 0; | |
1531 | } | |
1532 | ||
1533 | /* Dump CACHE. */ | |
1534 | ||
1535 | static void | |
1536 | symbol_cache_dump (const struct symbol_cache *cache) | |
1537 | { | |
1538 | int pass; | |
1539 | ||
1540 | if (cache->global_symbols == NULL) | |
1541 | { | |
6cb06a8c | 1542 | gdb_printf (" <disabled>\n"); |
f57d2163 DE |
1543 | return; |
1544 | } | |
1545 | ||
1546 | for (pass = 0; pass < 2; ++pass) | |
1547 | { | |
1548 | const struct block_symbol_cache *bsc | |
1549 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1550 | unsigned int i; | |
1551 | ||
1552 | if (pass == 0) | |
6cb06a8c | 1553 | gdb_printf ("Global symbols:\n"); |
f57d2163 | 1554 | else |
6cb06a8c | 1555 | gdb_printf ("Static symbols:\n"); |
f57d2163 DE |
1556 | |
1557 | for (i = 0; i < bsc->size; ++i) | |
1558 | { | |
1559 | const struct symbol_cache_slot *slot = &bsc->symbols[i]; | |
1560 | ||
1561 | QUIT; | |
1562 | ||
1563 | switch (slot->state) | |
1564 | { | |
1565 | case SYMBOL_SLOT_UNUSED: | |
1566 | break; | |
1567 | case SYMBOL_SLOT_NOT_FOUND: | |
6cb06a8c TT |
1568 | gdb_printf (" [%4u] = %s, %s %s (not found)\n", i, |
1569 | host_address_to_string (slot->objfile_context), | |
1570 | slot->value.not_found.name, | |
1571 | domain_name (slot->value.not_found.domain)); | |
f57d2163 DE |
1572 | break; |
1573 | case SYMBOL_SLOT_FOUND: | |
d12307c1 PMR |
1574 | { |
1575 | struct symbol *found = slot->value.found.symbol; | |
1576 | const struct objfile *context = slot->objfile_context; | |
1577 | ||
6cb06a8c TT |
1578 | gdb_printf (" [%4u] = %s, %s %s\n", i, |
1579 | host_address_to_string (context), | |
1580 | found->print_name (), | |
1581 | domain_name (found->domain ())); | |
d12307c1 PMR |
1582 | break; |
1583 | } | |
f57d2163 DE |
1584 | } |
1585 | } | |
1586 | } | |
1587 | } | |
1588 | ||
1589 | /* The "mt print symbol-cache" command. */ | |
1590 | ||
1591 | static void | |
510e5e56 | 1592 | maintenance_print_symbol_cache (const char *args, int from_tty) |
f57d2163 | 1593 | { |
94c93c35 | 1594 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1595 | { |
1596 | struct symbol_cache *cache; | |
1597 | ||
6cb06a8c TT |
1598 | gdb_printf (_("Symbol cache for pspace %d\n%s:\n"), |
1599 | pspace->num, | |
1600 | pspace->symfile_object_file != NULL | |
1601 | ? objfile_name (pspace->symfile_object_file) | |
1602 | : "(no object file)"); | |
f57d2163 DE |
1603 | |
1604 | /* If the cache hasn't been created yet, avoid creating one. */ | |
3017b94d | 1605 | cache = symbol_cache_key.get (pspace); |
f57d2163 | 1606 | if (cache == NULL) |
6cb06a8c | 1607 | gdb_printf (" <empty>\n"); |
f57d2163 DE |
1608 | else |
1609 | symbol_cache_dump (cache); | |
1610 | } | |
1611 | } | |
1612 | ||
1613 | /* The "mt flush-symbol-cache" command. */ | |
1614 | ||
1615 | static void | |
510e5e56 | 1616 | maintenance_flush_symbol_cache (const char *args, int from_tty) |
f57d2163 | 1617 | { |
94c93c35 | 1618 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1619 | { |
1620 | symbol_cache_flush (pspace); | |
1621 | } | |
1622 | } | |
1623 | ||
1624 | /* Print usage statistics of CACHE. */ | |
1625 | ||
1626 | static void | |
1627 | symbol_cache_stats (struct symbol_cache *cache) | |
1628 | { | |
1629 | int pass; | |
1630 | ||
1631 | if (cache->global_symbols == NULL) | |
1632 | { | |
6cb06a8c | 1633 | gdb_printf (" <disabled>\n"); |
f57d2163 DE |
1634 | return; |
1635 | } | |
1636 | ||
1637 | for (pass = 0; pass < 2; ++pass) | |
1638 | { | |
1639 | const struct block_symbol_cache *bsc | |
1640 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1641 | ||
1642 | QUIT; | |
1643 | ||
1644 | if (pass == 0) | |
6cb06a8c | 1645 | gdb_printf ("Global block cache stats:\n"); |
f57d2163 | 1646 | else |
6cb06a8c | 1647 | gdb_printf ("Static block cache stats:\n"); |
f57d2163 | 1648 | |
6cb06a8c TT |
1649 | gdb_printf (" size: %u\n", bsc->size); |
1650 | gdb_printf (" hits: %u\n", bsc->hits); | |
1651 | gdb_printf (" misses: %u\n", bsc->misses); | |
1652 | gdb_printf (" collisions: %u\n", bsc->collisions); | |
f57d2163 DE |
1653 | } |
1654 | } | |
1655 | ||
1656 | /* The "mt print symbol-cache-statistics" command. */ | |
1657 | ||
1658 | static void | |
510e5e56 | 1659 | maintenance_print_symbol_cache_statistics (const char *args, int from_tty) |
f57d2163 | 1660 | { |
94c93c35 | 1661 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1662 | { |
1663 | struct symbol_cache *cache; | |
1664 | ||
6cb06a8c TT |
1665 | gdb_printf (_("Symbol cache statistics for pspace %d\n%s:\n"), |
1666 | pspace->num, | |
1667 | pspace->symfile_object_file != NULL | |
1668 | ? objfile_name (pspace->symfile_object_file) | |
1669 | : "(no object file)"); | |
f57d2163 DE |
1670 | |
1671 | /* If the cache hasn't been created yet, avoid creating one. */ | |
3017b94d | 1672 | cache = symbol_cache_key.get (pspace); |
f57d2163 | 1673 | if (cache == NULL) |
6cb06a8c | 1674 | gdb_printf (" empty, no stats available\n"); |
f57d2163 DE |
1675 | else |
1676 | symbol_cache_stats (cache); | |
1677 | } | |
1678 | } | |
1679 | ||
1680 | /* This module's 'new_objfile' observer. */ | |
1681 | ||
1682 | static void | |
1683 | symtab_new_objfile_observer (struct objfile *objfile) | |
1684 | { | |
1685 | /* Ideally we'd use OBJFILE->pspace, but OBJFILE may be NULL. */ | |
1686 | symbol_cache_flush (current_program_space); | |
1687 | } | |
1688 | ||
1689 | /* This module's 'free_objfile' observer. */ | |
1690 | ||
1691 | static void | |
1692 | symtab_free_objfile_observer (struct objfile *objfile) | |
1693 | { | |
1694 | symbol_cache_flush (objfile->pspace); | |
1695 | } | |
1696 | \f | |
49c1de0e | 1697 | /* See symtab.h. */ |
3f01c12b | 1698 | |
49c1de0e TT |
1699 | void |
1700 | fixup_symbol_section (struct symbol *sym, struct objfile *objfile) | |
c906108c | 1701 | { |
49c1de0e TT |
1702 | gdb_assert (sym != nullptr); |
1703 | gdb_assert (sym->is_objfile_owned ()); | |
1704 | gdb_assert (objfile != nullptr); | |
1705 | gdb_assert (sym->section_index () == -1); | |
1706 | ||
1707 | /* Note that if this ends up as -1, fixup_section will handle that | |
1708 | reasonably well. So, it's fine to use the objfile's section | |
1709 | index without doing the check that is done by the wrapper macros | |
1710 | like SECT_OFF_TEXT. */ | |
1711 | int fallback; | |
1712 | switch (sym->aclass ()) | |
1713 | { | |
1714 | case LOC_STATIC: | |
1715 | fallback = objfile->sect_index_data; | |
1716 | break; | |
1717 | ||
1718 | case LOC_LABEL: | |
1719 | fallback = objfile->sect_index_text; | |
1720 | break; | |
1721 | ||
1722 | default: | |
1723 | /* Nothing else will be listed in the minsyms -- no use looking | |
1724 | it up. */ | |
1725 | return; | |
1726 | } | |
1727 | ||
1728 | CORE_ADDR addr = sym->value_address (); | |
1729 | ||
c906108c | 1730 | struct minimal_symbol *msym; |
c906108c | 1731 | |
bccdca4a UW |
1732 | /* First, check whether a minimal symbol with the same name exists |
1733 | and points to the same address. The address check is required | |
1734 | e.g. on PowerPC64, where the minimal symbol for a function will | |
1735 | point to the function descriptor, while the debug symbol will | |
1736 | point to the actual function code. */ | |
49c1de0e | 1737 | msym = lookup_minimal_symbol_by_pc_name (addr, sym->linkage_name (), |
4d4eaa30 | 1738 | objfile); |
907fc202 | 1739 | if (msym) |
49c1de0e | 1740 | sym->set_section_index (msym->section_index ()); |
907fc202 | 1741 | else |
19e2d14b KB |
1742 | { |
1743 | /* Static, function-local variables do appear in the linker | |
1744 | (minimal) symbols, but are frequently given names that won't | |
1745 | be found via lookup_minimal_symbol(). E.g., it has been | |
1746 | observed in frv-uclinux (ELF) executables that a static, | |
1747 | function-local variable named "foo" might appear in the | |
1748 | linker symbols as "foo.6" or "foo.3". Thus, there is no | |
1749 | point in attempting to extend the lookup-by-name mechanism to | |
1750 | handle this case due to the fact that there can be multiple | |
1751 | names. | |
9af17804 | 1752 | |
19e2d14b KB |
1753 | So, instead, search the section table when lookup by name has |
1754 | failed. The ``addr'' and ``endaddr'' fields may have already | |
6a053cb1 TT |
1755 | been relocated. If so, the relocation offset needs to be |
1756 | subtracted from these values when performing the comparison. | |
1757 | We unconditionally subtract it, because, when no relocation | |
1758 | has been performed, the value will simply be zero. | |
9af17804 | 1759 | |
19e2d14b KB |
1760 | The address of the symbol whose section we're fixing up HAS |
1761 | NOT BEEN adjusted (relocated) yet. It can't have been since | |
1762 | the section isn't yet known and knowing the section is | |
1763 | necessary in order to add the correct relocation value. In | |
1764 | other words, we wouldn't even be in this function (attempting | |
1765 | to compute the section) if it were already known. | |
1766 | ||
1767 | Note that it is possible to search the minimal symbols | |
1768 | (subtracting the relocation value if necessary) to find the | |
1769 | matching minimal symbol, but this is overkill and much less | |
1770 | efficient. It is not necessary to find the matching minimal | |
9af17804 DE |
1771 | symbol, only its section. |
1772 | ||
19e2d14b KB |
1773 | Note that this technique (of doing a section table search) |
1774 | can fail when unrelocated section addresses overlap. For | |
1775 | this reason, we still attempt a lookup by name prior to doing | |
1776 | a search of the section table. */ | |
9af17804 | 1777 | |
19e2d14b | 1778 | struct obj_section *s; |
433759f7 | 1779 | |
19e2d14b KB |
1780 | ALL_OBJFILE_OSECTIONS (objfile, s) |
1781 | { | |
49c1de0e TT |
1782 | if ((bfd_section_flags (s->the_bfd_section) & SEC_ALLOC) == 0) |
1783 | continue; | |
1784 | ||
65cf3563 | 1785 | int idx = s - objfile->sections; |
6a053cb1 | 1786 | CORE_ADDR offset = objfile->section_offsets[idx]; |
19e2d14b | 1787 | |
e27d198c TT |
1788 | if (fallback == -1) |
1789 | fallback = idx; | |
1790 | ||
0c1bcd23 | 1791 | if (s->addr () - offset <= addr && addr < s->endaddr () - offset) |
19e2d14b | 1792 | { |
49c1de0e | 1793 | sym->set_section_index (idx); |
19e2d14b KB |
1794 | return; |
1795 | } | |
1796 | } | |
e27d198c TT |
1797 | |
1798 | /* If we didn't find the section, assume it is in the first | |
1799 | section. If there is no allocated section, then it hardly | |
1800 | matters what we pick, so just pick zero. */ | |
1801 | if (fallback == -1) | |
49c1de0e | 1802 | sym->set_section_index (0); |
e27d198c | 1803 | else |
49c1de0e | 1804 | sym->set_section_index (fallback); |
19e2d14b | 1805 | } |
c906108c SS |
1806 | } |
1807 | ||
b5ec771e PA |
1808 | /* See symtab.h. */ |
1809 | ||
1810 | demangle_for_lookup_info::demangle_for_lookup_info | |
1811 | (const lookup_name_info &lookup_name, language lang) | |
1812 | { | |
1813 | demangle_result_storage storage; | |
1814 | ||
c62446b1 PA |
1815 | if (lookup_name.ignore_parameters () && lang == language_cplus) |
1816 | { | |
1817 | gdb::unique_xmalloc_ptr<char> without_params | |
e0802d59 | 1818 | = cp_remove_params_if_any (lookup_name.c_str (), |
c62446b1 PA |
1819 | lookup_name.completion_mode ()); |
1820 | ||
1821 | if (without_params != NULL) | |
1822 | { | |
de63c46b PA |
1823 | if (lookup_name.match_type () != symbol_name_match_type::SEARCH_NAME) |
1824 | m_demangled_name = demangle_for_lookup (without_params.get (), | |
1825 | lang, storage); | |
c62446b1 PA |
1826 | return; |
1827 | } | |
1828 | } | |
1829 | ||
de63c46b | 1830 | if (lookup_name.match_type () == symbol_name_match_type::SEARCH_NAME) |
e0802d59 | 1831 | m_demangled_name = lookup_name.c_str (); |
de63c46b | 1832 | else |
e0802d59 | 1833 | m_demangled_name = demangle_for_lookup (lookup_name.c_str (), |
de63c46b | 1834 | lang, storage); |
b5ec771e PA |
1835 | } |
1836 | ||
1837 | /* See symtab.h. */ | |
1838 | ||
1839 | const lookup_name_info & | |
1840 | lookup_name_info::match_any () | |
1841 | { | |
1842 | /* Lookup any symbol that "" would complete. I.e., this matches all | |
1843 | symbol names. */ | |
e0802d59 | 1844 | static const lookup_name_info lookup_name ("", symbol_name_match_type::FULL, |
b5ec771e PA |
1845 | true); |
1846 | ||
1847 | return lookup_name; | |
1848 | } | |
1849 | ||
f8eba3c6 | 1850 | /* Compute the demangled form of NAME as used by the various symbol |
2f408ecb PA |
1851 | lookup functions. The result can either be the input NAME |
1852 | directly, or a pointer to a buffer owned by the STORAGE object. | |
f8eba3c6 | 1853 | |
2f408ecb | 1854 | For Ada, this function just returns NAME, unmodified. |
f8eba3c6 TT |
1855 | Normally, Ada symbol lookups are performed using the encoded name |
1856 | rather than the demangled name, and so it might seem to make sense | |
1857 | for this function to return an encoded version of NAME. | |
1858 | Unfortunately, we cannot do this, because this function is used in | |
1859 | circumstances where it is not appropriate to try to encode NAME. | |
1860 | For instance, when displaying the frame info, we demangle the name | |
1861 | of each parameter, and then perform a symbol lookup inside our | |
1862 | function using that demangled name. In Ada, certain functions | |
1863 | have internally-generated parameters whose name contain uppercase | |
1864 | characters. Encoding those name would result in those uppercase | |
1865 | characters to become lowercase, and thus cause the symbol lookup | |
1866 | to fail. */ | |
c906108c | 1867 | |
2f408ecb | 1868 | const char * |
f8eba3c6 | 1869 | demangle_for_lookup (const char *name, enum language lang, |
2f408ecb | 1870 | demangle_result_storage &storage) |
c906108c | 1871 | { |
9c37b5ae | 1872 | /* If we are using C++, D, or Go, demangle the name before doing a |
c378eb4e | 1873 | lookup, so we can always binary search. */ |
53c5240f | 1874 | if (lang == language_cplus) |
729051e6 | 1875 | { |
3456e70c TT |
1876 | gdb::unique_xmalloc_ptr<char> demangled_name |
1877 | = gdb_demangle (name, DMGL_ANSI | DMGL_PARAMS); | |
2f408ecb | 1878 | if (demangled_name != NULL) |
3456e70c | 1879 | return storage.set_malloc_ptr (std::move (demangled_name)); |
2f408ecb PA |
1880 | |
1881 | /* If we were given a non-mangled name, canonicalize it | |
1882 | according to the language (so far only for C++). */ | |
596dc4ad TT |
1883 | gdb::unique_xmalloc_ptr<char> canon = cp_canonicalize_string (name); |
1884 | if (canon != nullptr) | |
1885 | return storage.set_malloc_ptr (std::move (canon)); | |
729051e6 | 1886 | } |
6aecb9c2 JB |
1887 | else if (lang == language_d) |
1888 | { | |
3456e70c | 1889 | gdb::unique_xmalloc_ptr<char> demangled_name = d_demangle (name, 0); |
2f408ecb | 1890 | if (demangled_name != NULL) |
3456e70c | 1891 | return storage.set_malloc_ptr (std::move (demangled_name)); |
6aecb9c2 | 1892 | } |
a766d390 DE |
1893 | else if (lang == language_go) |
1894 | { | |
3456e70c | 1895 | gdb::unique_xmalloc_ptr<char> demangled_name |
82fc57fd | 1896 | = language_def (language_go)->demangle_symbol (name, 0); |
2f408ecb | 1897 | if (demangled_name != NULL) |
3456e70c | 1898 | return storage.set_malloc_ptr (std::move (demangled_name)); |
a766d390 | 1899 | } |
729051e6 | 1900 | |
2f408ecb | 1901 | return name; |
f8eba3c6 TT |
1902 | } |
1903 | ||
5ffa0793 PA |
1904 | /* See symtab.h. */ |
1905 | ||
1906 | unsigned int | |
1907 | search_name_hash (enum language language, const char *search_name) | |
1908 | { | |
fb8006fd | 1909 | return language_def (language)->search_name_hash (search_name); |
5ffa0793 PA |
1910 | } |
1911 | ||
cf901d3b | 1912 | /* See symtab.h. |
f8eba3c6 | 1913 | |
cf901d3b | 1914 | This function (or rather its subordinates) have a bunch of loops and |
7e082072 DE |
1915 | it would seem to be attractive to put in some QUIT's (though I'm not really |
1916 | sure whether it can run long enough to be really important). But there | |
f8eba3c6 | 1917 | are a few calls for which it would appear to be bad news to quit |
7e082072 | 1918 | out of here: e.g., find_proc_desc in alpha-mdebug-tdep.c. (Note |
f8eba3c6 TT |
1919 | that there is C++ code below which can error(), but that probably |
1920 | doesn't affect these calls since they are looking for a known | |
1921 | variable and thus can probably assume it will never hit the C++ | |
1922 | code). */ | |
1923 | ||
d12307c1 | 1924 | struct block_symbol |
f8eba3c6 TT |
1925 | lookup_symbol_in_language (const char *name, const struct block *block, |
1926 | const domain_enum domain, enum language lang, | |
1993b719 | 1927 | struct field_of_this_result *is_a_field_of_this) |
f8eba3c6 | 1928 | { |
2698da26 AB |
1929 | SYMBOL_LOOKUP_SCOPED_DEBUG_ENTER_EXIT; |
1930 | ||
2f408ecb PA |
1931 | demangle_result_storage storage; |
1932 | const char *modified_name = demangle_for_lookup (name, lang, storage); | |
f8eba3c6 | 1933 | |
de63c46b PA |
1934 | return lookup_symbol_aux (modified_name, |
1935 | symbol_name_match_type::FULL, | |
1936 | block, domain, lang, | |
2f408ecb | 1937 | is_a_field_of_this); |
fba7f19c EZ |
1938 | } |
1939 | ||
cf901d3b | 1940 | /* See symtab.h. */ |
53c5240f | 1941 | |
d12307c1 | 1942 | struct block_symbol |
53c5240f | 1943 | lookup_symbol (const char *name, const struct block *block, |
1993b719 TT |
1944 | domain_enum domain, |
1945 | struct field_of_this_result *is_a_field_of_this) | |
53c5240f PA |
1946 | { |
1947 | return lookup_symbol_in_language (name, block, domain, | |
1948 | current_language->la_language, | |
2570f2b7 | 1949 | is_a_field_of_this); |
53c5240f PA |
1950 | } |
1951 | ||
cf901d3b | 1952 | /* See symtab.h. */ |
66a17cb6 | 1953 | |
de63c46b PA |
1954 | struct block_symbol |
1955 | lookup_symbol_search_name (const char *search_name, const struct block *block, | |
1956 | domain_enum domain) | |
1957 | { | |
1958 | return lookup_symbol_aux (search_name, symbol_name_match_type::SEARCH_NAME, | |
1959 | block, domain, language_asm, NULL); | |
1960 | } | |
1961 | ||
1962 | /* See symtab.h. */ | |
1963 | ||
d12307c1 | 1964 | struct block_symbol |
66a17cb6 TT |
1965 | lookup_language_this (const struct language_defn *lang, |
1966 | const struct block *block) | |
1967 | { | |
5bae7c4e | 1968 | if (lang->name_of_this () == NULL || block == NULL) |
6640a367 | 1969 | return {}; |
66a17cb6 | 1970 | |
b1e678d9 AB |
1971 | symbol_lookup_debug_printf_v ("lookup_language_this (%s, %s (objfile %s))", |
1972 | lang->name (), host_address_to_string (block), | |
46baa3c6 | 1973 | objfile_debug_name (block->objfile ())); |
cc485e62 | 1974 | |
03de6823 | 1975 | while (block) |
66a17cb6 TT |
1976 | { |
1977 | struct symbol *sym; | |
1978 | ||
5bae7c4e | 1979 | sym = block_lookup_symbol (block, lang->name_of_this (), |
de63c46b PA |
1980 | symbol_name_match_type::SEARCH_NAME, |
1981 | VAR_DOMAIN); | |
66a17cb6 | 1982 | if (sym != NULL) |
f149aabd | 1983 | { |
b1e678d9 AB |
1984 | symbol_lookup_debug_printf_v |
1985 | ("lookup_language_this (...) = %s (%s, block %s)", | |
1986 | sym->print_name (), host_address_to_string (sym), | |
1987 | host_address_to_string (block)); | |
d12307c1 | 1988 | return (struct block_symbol) {sym, block}; |
f149aabd | 1989 | } |
6c00f721 | 1990 | if (block->function ()) |
03de6823 | 1991 | break; |
f135fe72 | 1992 | block = block->superblock (); |
66a17cb6 | 1993 | } |
03de6823 | 1994 | |
b1e678d9 | 1995 | symbol_lookup_debug_printf_v ("lookup_language_this (...) = NULL"); |
6640a367 | 1996 | return {}; |
66a17cb6 TT |
1997 | } |
1998 | ||
2dc3df72 TT |
1999 | /* Given TYPE, a structure/union, |
2000 | return 1 if the component named NAME from the ultimate target | |
2001 | structure/union is defined, otherwise, return 0. */ | |
2002 | ||
2003 | static int | |
1993b719 TT |
2004 | check_field (struct type *type, const char *name, |
2005 | struct field_of_this_result *is_a_field_of_this) | |
2dc3df72 TT |
2006 | { |
2007 | int i; | |
2008 | ||
2009 | /* The type may be a stub. */ | |
f168693b | 2010 | type = check_typedef (type); |
2dc3df72 | 2011 | |
1f704f76 | 2012 | for (i = type->num_fields () - 1; i >= TYPE_N_BASECLASSES (type); i--) |
2dc3df72 | 2013 | { |
33d16dd9 | 2014 | const char *t_field_name = type->field (i).name (); |
2dc3df72 TT |
2015 | |
2016 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) | |
1993b719 TT |
2017 | { |
2018 | is_a_field_of_this->type = type; | |
ceacbf6e | 2019 | is_a_field_of_this->field = &type->field (i); |
1993b719 TT |
2020 | return 1; |
2021 | } | |
2dc3df72 TT |
2022 | } |
2023 | ||
2024 | /* C++: If it was not found as a data field, then try to return it | |
2025 | as a pointer to a method. */ | |
2026 | ||
2027 | for (i = TYPE_NFN_FIELDS (type) - 1; i >= 0; --i) | |
2028 | { | |
2029 | if (strcmp_iw (TYPE_FN_FIELDLIST_NAME (type, i), name) == 0) | |
1993b719 TT |
2030 | { |
2031 | is_a_field_of_this->type = type; | |
2032 | is_a_field_of_this->fn_field = &TYPE_FN_FIELDLIST (type, i); | |
2033 | return 1; | |
2034 | } | |
2dc3df72 TT |
2035 | } |
2036 | ||
2037 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1993b719 | 2038 | if (check_field (TYPE_BASECLASS (type, i), name, is_a_field_of_this)) |
2dc3df72 TT |
2039 | return 1; |
2040 | ||
2041 | return 0; | |
2042 | } | |
2043 | ||
53c5240f | 2044 | /* Behave like lookup_symbol except that NAME is the natural name |
7e082072 | 2045 | (e.g., demangled name) of the symbol that we're looking for. */ |
5ad1c190 | 2046 | |
d12307c1 | 2047 | static struct block_symbol |
de63c46b PA |
2048 | lookup_symbol_aux (const char *name, symbol_name_match_type match_type, |
2049 | const struct block *block, | |
94af9270 | 2050 | const domain_enum domain, enum language language, |
1993b719 | 2051 | struct field_of_this_result *is_a_field_of_this) |
fba7f19c | 2052 | { |
2698da26 AB |
2053 | SYMBOL_LOOKUP_SCOPED_DEBUG_ENTER_EXIT; |
2054 | ||
d12307c1 | 2055 | struct block_symbol result; |
53c5240f | 2056 | const struct language_defn *langdef; |
406bc4de | 2057 | |
cc485e62 DE |
2058 | if (symbol_lookup_debug) |
2059 | { | |
d6bc0792 | 2060 | struct objfile *objfile = (block == nullptr |
46baa3c6 | 2061 | ? nullptr : block->objfile ()); |
cc485e62 | 2062 | |
b1e678d9 AB |
2063 | symbol_lookup_debug_printf |
2064 | ("demangled symbol name = \"%s\", block @ %s (objfile %s)", | |
2065 | name, host_address_to_string (block), | |
2066 | objfile != NULL ? objfile_debug_name (objfile) : "NULL"); | |
2067 | symbol_lookup_debug_printf | |
2068 | ("domain name = \"%s\", language = \"%s\")", | |
2069 | domain_name (domain), language_str (language)); | |
cc485e62 DE |
2070 | } |
2071 | ||
9a146a11 EZ |
2072 | /* Make sure we do something sensible with is_a_field_of_this, since |
2073 | the callers that set this parameter to some non-null value will | |
1993b719 TT |
2074 | certainly use it later. If we don't set it, the contents of |
2075 | is_a_field_of_this are undefined. */ | |
9a146a11 | 2076 | if (is_a_field_of_this != NULL) |
1993b719 | 2077 | memset (is_a_field_of_this, 0, sizeof (*is_a_field_of_this)); |
9a146a11 | 2078 | |
e4051eeb DC |
2079 | /* Search specified block and its superiors. Don't search |
2080 | STATIC_BLOCK or GLOBAL_BLOCK. */ | |
c906108c | 2081 | |
de63c46b | 2082 | result = lookup_local_symbol (name, match_type, block, domain, language); |
d12307c1 | 2083 | if (result.symbol != NULL) |
cc485e62 | 2084 | { |
b1e678d9 AB |
2085 | symbol_lookup_debug_printf |
2086 | ("found symbol @ %s (using lookup_local_symbol)", | |
2087 | host_address_to_string (result.symbol)); | |
d12307c1 | 2088 | return result; |
cc485e62 | 2089 | } |
c906108c | 2090 | |
53c5240f | 2091 | /* If requested to do so by the caller and if appropriate for LANGUAGE, |
13387711 | 2092 | check to see if NAME is a field of `this'. */ |
53c5240f PA |
2093 | |
2094 | langdef = language_def (language); | |
5f9a71c3 | 2095 | |
6592e36f TT |
2096 | /* Don't do this check if we are searching for a struct. It will |
2097 | not be found by check_field, but will be found by other | |
2098 | means. */ | |
2099 | if (is_a_field_of_this != NULL && domain != STRUCT_DOMAIN) | |
c906108c | 2100 | { |
d12307c1 | 2101 | result = lookup_language_this (langdef, block); |
2b2d9e11 | 2102 | |
d12307c1 | 2103 | if (result.symbol) |
c906108c | 2104 | { |
5f9c5a63 | 2105 | struct type *t = result.symbol->type (); |
9af17804 | 2106 | |
2b2d9e11 VP |
2107 | /* I'm not really sure that type of this can ever |
2108 | be typedefed; just be safe. */ | |
f168693b | 2109 | t = check_typedef (t); |
809f3be1 | 2110 | if (t->is_pointer_or_reference ()) |
27710edb | 2111 | t = t->target_type (); |
9af17804 | 2112 | |
78134374 SM |
2113 | if (t->code () != TYPE_CODE_STRUCT |
2114 | && t->code () != TYPE_CODE_UNION) | |
9af17804 | 2115 | error (_("Internal error: `%s' is not an aggregate"), |
5bae7c4e | 2116 | langdef->name_of_this ()); |
9af17804 | 2117 | |
1993b719 | 2118 | if (check_field (t, name, is_a_field_of_this)) |
cc485e62 | 2119 | { |
b1e678d9 | 2120 | symbol_lookup_debug_printf ("no symbol found"); |
6640a367 | 2121 | return {}; |
cc485e62 | 2122 | } |
c906108c SS |
2123 | } |
2124 | } | |
2125 | ||
53c5240f | 2126 | /* Now do whatever is appropriate for LANGUAGE to look |
774b6a14 | 2127 | up static and global variables. */ |
c906108c | 2128 | |
a78a19b1 | 2129 | result = langdef->lookup_symbol_nonlocal (name, block, domain); |
d12307c1 | 2130 | if (result.symbol != NULL) |
cc485e62 | 2131 | { |
b1e678d9 AB |
2132 | symbol_lookup_debug_printf |
2133 | ("found symbol @ %s (using language lookup_symbol_nonlocal)", | |
2134 | host_address_to_string (result.symbol)); | |
d12307c1 | 2135 | return result; |
cc485e62 | 2136 | } |
c906108c | 2137 | |
774b6a14 TT |
2138 | /* Now search all static file-level symbols. Not strictly correct, |
2139 | but more useful than an error. */ | |
41f62f39 | 2140 | |
d12307c1 | 2141 | result = lookup_static_symbol (name, domain); |
b1e678d9 AB |
2142 | symbol_lookup_debug_printf |
2143 | ("found symbol @ %s (using lookup_static_symbol)", | |
2144 | result.symbol != NULL ? host_address_to_string (result.symbol) : "NULL"); | |
d12307c1 | 2145 | return result; |
41f62f39 JK |
2146 | } |
2147 | ||
e4051eeb | 2148 | /* Check to see if the symbol is defined in BLOCK or its superiors. |
89a9d1b1 | 2149 | Don't search STATIC_BLOCK or GLOBAL_BLOCK. */ |
8155455b | 2150 | |
d12307c1 | 2151 | static struct block_symbol |
de63c46b PA |
2152 | lookup_local_symbol (const char *name, |
2153 | symbol_name_match_type match_type, | |
2154 | const struct block *block, | |
74016e12 DE |
2155 | const domain_enum domain, |
2156 | enum language language) | |
8155455b | 2157 | { |
78004096 TT |
2158 | if (block == nullptr) |
2159 | return {}; | |
2160 | ||
8155455b | 2161 | struct symbol *sym; |
89a9d1b1 | 2162 | const struct block *static_block = block_static_block (block); |
3c45e9f9 | 2163 | const char *scope = block->scope (); |
13387711 | 2164 | |
78004096 TT |
2165 | /* Check if it's a global block. */ |
2166 | if (static_block == nullptr) | |
6640a367 | 2167 | return {}; |
e4051eeb | 2168 | |
89a9d1b1 | 2169 | while (block != static_block) |
f61e8913 | 2170 | { |
de63c46b | 2171 | sym = lookup_symbol_in_block (name, match_type, block, domain); |
f61e8913 | 2172 | if (sym != NULL) |
d12307c1 | 2173 | return (struct block_symbol) {sym, block}; |
edb3359d | 2174 | |
f55ee35c | 2175 | if (language == language_cplus || language == language_fortran) |
dda83cd7 SM |
2176 | { |
2177 | struct block_symbol blocksym | |
d12307c1 PMR |
2178 | = cp_lookup_symbol_imports_or_template (scope, name, block, |
2179 | domain); | |
2180 | ||
dda83cd7 SM |
2181 | if (blocksym.symbol != NULL) |
2182 | return blocksym; | |
2183 | } | |
13387711 | 2184 | |
a4dfe747 | 2185 | if (block->function () != NULL && block->inlined_p ()) |
edb3359d | 2186 | break; |
f135fe72 | 2187 | block = block->superblock (); |
f61e8913 DC |
2188 | } |
2189 | ||
3aee438b | 2190 | /* We've reached the end of the function without finding a result. */ |
e4051eeb | 2191 | |
6640a367 | 2192 | return {}; |
f61e8913 DC |
2193 | } |
2194 | ||
cf901d3b | 2195 | /* See symtab.h. */ |
3a40aaa0 | 2196 | |
5f9a71c3 | 2197 | struct symbol * |
de63c46b PA |
2198 | lookup_symbol_in_block (const char *name, symbol_name_match_type match_type, |
2199 | const struct block *block, | |
d1a2d36d | 2200 | const domain_enum domain) |
f61e8913 DC |
2201 | { |
2202 | struct symbol *sym; | |
f61e8913 | 2203 | |
b1e678d9 | 2204 | if (symbol_lookup_debug) |
cc485e62 | 2205 | { |
b1e678d9 | 2206 | struct objfile *objfile |
46baa3c6 | 2207 | = block == nullptr ? nullptr : block->objfile (); |
cc485e62 | 2208 | |
b1e678d9 AB |
2209 | symbol_lookup_debug_printf_v |
2210 | ("lookup_symbol_in_block (%s, %s (objfile %s), %s)", | |
2211 | name, host_address_to_string (block), | |
2212 | objfile != nullptr ? objfile_debug_name (objfile) : "NULL", | |
2213 | domain_name (domain)); | |
cc485e62 DE |
2214 | } |
2215 | ||
de63c46b | 2216 | sym = block_lookup_symbol (block, name, match_type, domain); |
f61e8913 | 2217 | if (sym) |
8155455b | 2218 | { |
b1e678d9 AB |
2219 | symbol_lookup_debug_printf_v ("lookup_symbol_in_block (...) = %s", |
2220 | host_address_to_string (sym)); | |
dae58e04 | 2221 | return sym; |
8155455b DC |
2222 | } |
2223 | ||
b1e678d9 | 2224 | symbol_lookup_debug_printf_v ("lookup_symbol_in_block (...) = NULL"); |
8155455b DC |
2225 | return NULL; |
2226 | } | |
2227 | ||
cf901d3b | 2228 | /* See symtab.h. */ |
3a40aaa0 | 2229 | |
d12307c1 | 2230 | struct block_symbol |
efad9b6a | 2231 | lookup_global_symbol_from_objfile (struct objfile *main_objfile, |
442853af | 2232 | enum block_enum block_index, |
3a40aaa0 | 2233 | const char *name, |
21b556f4 | 2234 | const domain_enum domain) |
3a40aaa0 | 2235 | { |
442853af CB |
2236 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2237 | ||
bde09ab7 | 2238 | for (objfile *objfile : main_objfile->separate_debug_objfiles ()) |
15d123c9 | 2239 | { |
d12307c1 | 2240 | struct block_symbol result |
dda83cd7 | 2241 | = lookup_symbol_in_objfile (objfile, block_index, name, domain); |
15d123c9 | 2242 | |
442853af | 2243 | if (result.symbol != nullptr) |
d12307c1 | 2244 | return result; |
15d123c9 | 2245 | } |
56e3f43c | 2246 | |
6640a367 | 2247 | return {}; |
3a40aaa0 UW |
2248 | } |
2249 | ||
19630284 JB |
2250 | /* Check to see if the symbol is defined in one of the OBJFILE's |
2251 | symtabs. BLOCK_INDEX should be either GLOBAL_BLOCK or STATIC_BLOCK, | |
8155455b DC |
2252 | depending on whether or not we want to search global symbols or |
2253 | static symbols. */ | |
2254 | ||
d12307c1 | 2255 | static struct block_symbol |
c32e6a04 CB |
2256 | lookup_symbol_in_objfile_symtabs (struct objfile *objfile, |
2257 | enum block_enum block_index, const char *name, | |
2258 | const domain_enum domain) | |
19630284 | 2259 | { |
ba715d7f JK |
2260 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2261 | ||
b1e678d9 AB |
2262 | symbol_lookup_debug_printf_v |
2263 | ("lookup_symbol_in_objfile_symtabs (%s, %s, %s, %s)", | |
2264 | objfile_debug_name (objfile), | |
2265 | block_index == GLOBAL_BLOCK ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
2266 | name, domain_name (domain)); | |
cc485e62 | 2267 | |
de82891c TV |
2268 | struct block_symbol other; |
2269 | other.symbol = NULL; | |
b669c953 | 2270 | for (compunit_symtab *cust : objfile->compunits ()) |
a743abeb | 2271 | { |
43f3e411 DE |
2272 | const struct blockvector *bv; |
2273 | const struct block *block; | |
d12307c1 | 2274 | struct block_symbol result; |
43f3e411 | 2275 | |
af39c5c8 | 2276 | bv = cust->blockvector (); |
63d609de | 2277 | block = bv->block (block_index); |
d12307c1 PMR |
2278 | result.symbol = block_lookup_symbol_primary (block, name, domain); |
2279 | result.block = block; | |
de82891c TV |
2280 | if (result.symbol == NULL) |
2281 | continue; | |
2282 | if (best_symbol (result.symbol, domain)) | |
a743abeb | 2283 | { |
de82891c TV |
2284 | other = result; |
2285 | break; | |
2286 | } | |
2287 | if (symbol_matches_domain (result.symbol->language (), | |
6c9c307c | 2288 | result.symbol->domain (), domain)) |
de82891c TV |
2289 | { |
2290 | struct symbol *better | |
2291 | = better_symbol (other.symbol, result.symbol, domain); | |
2292 | if (better != other.symbol) | |
cc485e62 | 2293 | { |
de82891c TV |
2294 | other.symbol = better; |
2295 | other.block = block; | |
cc485e62 | 2296 | } |
de82891c TV |
2297 | } |
2298 | } | |
d12307c1 | 2299 | |
de82891c TV |
2300 | if (other.symbol != NULL) |
2301 | { | |
b1e678d9 AB |
2302 | symbol_lookup_debug_printf_v |
2303 | ("lookup_symbol_in_objfile_symtabs (...) = %s (block %s)", | |
2304 | host_address_to_string (other.symbol), | |
2305 | host_address_to_string (other.block)); | |
de82891c | 2306 | return other; |
a743abeb | 2307 | } |
19630284 | 2308 | |
b1e678d9 AB |
2309 | symbol_lookup_debug_printf_v |
2310 | ("lookup_symbol_in_objfile_symtabs (...) = NULL"); | |
6640a367 | 2311 | return {}; |
19630284 JB |
2312 | } |
2313 | ||
74016e12 | 2314 | /* Wrapper around lookup_symbol_in_objfile_symtabs for search_symbols. |
422d65e7 | 2315 | Look up LINKAGE_NAME in DOMAIN in the global and static blocks of OBJFILE |
01465b56 DE |
2316 | and all associated separate debug objfiles. |
2317 | ||
2318 | Normally we only look in OBJFILE, and not any separate debug objfiles | |
2319 | because the outer loop will cause them to be searched too. This case is | |
2320 | different. Here we're called from search_symbols where it will only | |
6471e7d2 | 2321 | call us for the objfile that contains a matching minsym. */ |
422d65e7 | 2322 | |
d12307c1 | 2323 | static struct block_symbol |
422d65e7 DE |
2324 | lookup_symbol_in_objfile_from_linkage_name (struct objfile *objfile, |
2325 | const char *linkage_name, | |
2326 | domain_enum domain) | |
2327 | { | |
2328 | enum language lang = current_language->la_language; | |
e9ad22ee | 2329 | struct objfile *main_objfile; |
422d65e7 | 2330 | |
2f408ecb PA |
2331 | demangle_result_storage storage; |
2332 | const char *modified_name = demangle_for_lookup (linkage_name, lang, storage); | |
2333 | ||
422d65e7 DE |
2334 | if (objfile->separate_debug_objfile_backlink) |
2335 | main_objfile = objfile->separate_debug_objfile_backlink; | |
2336 | else | |
2337 | main_objfile = objfile; | |
2338 | ||
bde09ab7 | 2339 | for (::objfile *cur_objfile : main_objfile->separate_debug_objfiles ()) |
422d65e7 | 2340 | { |
d12307c1 PMR |
2341 | struct block_symbol result; |
2342 | ||
2343 | result = lookup_symbol_in_objfile_symtabs (cur_objfile, GLOBAL_BLOCK, | |
2344 | modified_name, domain); | |
2345 | if (result.symbol == NULL) | |
2346 | result = lookup_symbol_in_objfile_symtabs (cur_objfile, STATIC_BLOCK, | |
2347 | modified_name, domain); | |
2348 | if (result.symbol != NULL) | |
2f408ecb | 2349 | return result; |
422d65e7 DE |
2350 | } |
2351 | ||
6640a367 | 2352 | return {}; |
422d65e7 DE |
2353 | } |
2354 | ||
08c23b0d TT |
2355 | /* A helper function that throws an exception when a symbol was found |
2356 | in a psymtab but not in a symtab. */ | |
2357 | ||
2358 | static void ATTRIBUTE_NORETURN | |
ddbcedf5 | 2359 | error_in_psymtab_expansion (enum block_enum block_index, const char *name, |
43f3e411 | 2360 | struct compunit_symtab *cust) |
08c23b0d TT |
2361 | { |
2362 | error (_("\ | |
2363 | Internal: %s symbol `%s' found in %s psymtab but not in symtab.\n\ | |
2364 | %s may be an inlined function, or may be a template function\n \ | |
2365 | (if a template, try specifying an instantiation: %s<type>)."), | |
f88cb4b6 | 2366 | block_index == GLOBAL_BLOCK ? "global" : "static", |
43f3e411 | 2367 | name, |
0b17a4f7 | 2368 | symtab_to_filename_for_display (cust->primary_filetab ()), |
43f3e411 | 2369 | name, name); |
08c23b0d TT |
2370 | } |
2371 | ||
74016e12 DE |
2372 | /* A helper function for various lookup routines that interfaces with |
2373 | the "quick" symbol table functions. */ | |
8155455b | 2374 | |
d12307c1 | 2375 | static struct block_symbol |
ddbcedf5 CB |
2376 | lookup_symbol_via_quick_fns (struct objfile *objfile, |
2377 | enum block_enum block_index, const char *name, | |
2378 | const domain_enum domain) | |
8155455b | 2379 | { |
43f3e411 | 2380 | struct compunit_symtab *cust; |
346d1dfe | 2381 | const struct blockvector *bv; |
8155455b | 2382 | const struct block *block; |
d12307c1 | 2383 | struct block_symbol result; |
8155455b | 2384 | |
b1e678d9 AB |
2385 | symbol_lookup_debug_printf_v |
2386 | ("lookup_symbol_via_quick_fns (%s, %s, %s, %s)", | |
2387 | objfile_debug_name (objfile), | |
2388 | block_index == GLOBAL_BLOCK ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
2389 | name, domain_name (domain)); | |
cc485e62 | 2390 | |
4d080b46 | 2391 | cust = objfile->lookup_symbol (block_index, name, domain); |
43f3e411 | 2392 | if (cust == NULL) |
cc485e62 | 2393 | { |
b1e678d9 AB |
2394 | symbol_lookup_debug_printf_v |
2395 | ("lookup_symbol_via_quick_fns (...) = NULL"); | |
6640a367 | 2396 | return {}; |
cc485e62 | 2397 | } |
8155455b | 2398 | |
af39c5c8 | 2399 | bv = cust->blockvector (); |
63d609de | 2400 | block = bv->block (block_index); |
de63c46b PA |
2401 | result.symbol = block_lookup_symbol (block, name, |
2402 | symbol_name_match_type::FULL, domain); | |
d12307c1 | 2403 | if (result.symbol == NULL) |
43f3e411 | 2404 | error_in_psymtab_expansion (block_index, name, cust); |
cc485e62 | 2405 | |
b1e678d9 AB |
2406 | symbol_lookup_debug_printf_v |
2407 | ("lookup_symbol_via_quick_fns (...) = %s (block %s)", | |
2408 | host_address_to_string (result.symbol), | |
2409 | host_address_to_string (block)); | |
cc485e62 | 2410 | |
d12307c1 PMR |
2411 | result.block = block; |
2412 | return result; | |
8155455b DC |
2413 | } |
2414 | ||
a78a19b1 | 2415 | /* See language.h. */ |
5f9a71c3 | 2416 | |
d12307c1 | 2417 | struct block_symbol |
a78a19b1 AB |
2418 | language_defn::lookup_symbol_nonlocal (const char *name, |
2419 | const struct block *block, | |
2420 | const domain_enum domain) const | |
5f9a71c3 | 2421 | { |
d12307c1 | 2422 | struct block_symbol result; |
5f9a71c3 | 2423 | |
d9060ba6 DE |
2424 | /* NOTE: dje/2014-10-26: The lookup in all objfiles search could skip |
2425 | the current objfile. Searching the current objfile first is useful | |
2426 | for both matching user expectations as well as performance. */ | |
2427 | ||
d12307c1 PMR |
2428 | result = lookup_symbol_in_static_block (name, block, domain); |
2429 | if (result.symbol != NULL) | |
2430 | return result; | |
5f9a71c3 | 2431 | |
1994afbf DE |
2432 | /* If we didn't find a definition for a builtin type in the static block, |
2433 | search for it now. This is actually the right thing to do and can be | |
2434 | a massive performance win. E.g., when debugging a program with lots of | |
2435 | shared libraries we could search all of them only to find out the | |
2436 | builtin type isn't defined in any of them. This is common for types | |
2437 | like "void". */ | |
2438 | if (domain == VAR_DOMAIN) | |
2439 | { | |
2440 | struct gdbarch *gdbarch; | |
2441 | ||
2442 | if (block == NULL) | |
2443 | gdbarch = target_gdbarch (); | |
2444 | else | |
7f5937df | 2445 | gdbarch = block->gdbarch (); |
a78a19b1 | 2446 | result.symbol = language_lookup_primitive_type_as_symbol (this, |
d12307c1 PMR |
2447 | gdbarch, name); |
2448 | result.block = NULL; | |
2449 | if (result.symbol != NULL) | |
2450 | return result; | |
1994afbf DE |
2451 | } |
2452 | ||
08724ab7 | 2453 | return lookup_global_symbol (name, block, domain); |
5f9a71c3 DC |
2454 | } |
2455 | ||
cf901d3b | 2456 | /* See symtab.h. */ |
5f9a71c3 | 2457 | |
d12307c1 | 2458 | struct block_symbol |
24d864bb DE |
2459 | lookup_symbol_in_static_block (const char *name, |
2460 | const struct block *block, | |
2461 | const domain_enum domain) | |
5f9a71c3 | 2462 | { |
78004096 TT |
2463 | if (block == nullptr) |
2464 | return {}; | |
2465 | ||
5f9a71c3 | 2466 | const struct block *static_block = block_static_block (block); |
cc485e62 | 2467 | struct symbol *sym; |
5f9a71c3 | 2468 | |
cc485e62 | 2469 | if (static_block == NULL) |
6640a367 | 2470 | return {}; |
cc485e62 DE |
2471 | |
2472 | if (symbol_lookup_debug) | |
2473 | { | |
d6bc0792 | 2474 | struct objfile *objfile = (block == nullptr |
46baa3c6 | 2475 | ? nullptr : block->objfile ()); |
cc485e62 | 2476 | |
b1e678d9 AB |
2477 | symbol_lookup_debug_printf |
2478 | ("lookup_symbol_in_static_block (%s, %s (objfile %s), %s)", | |
2479 | name, host_address_to_string (block), | |
2480 | objfile != nullptr ? objfile_debug_name (objfile) : "NULL", | |
2481 | domain_name (domain)); | |
cc485e62 DE |
2482 | } |
2483 | ||
de63c46b PA |
2484 | sym = lookup_symbol_in_block (name, |
2485 | symbol_name_match_type::FULL, | |
2486 | static_block, domain); | |
b1e678d9 AB |
2487 | symbol_lookup_debug_printf ("lookup_symbol_in_static_block (...) = %s", |
2488 | sym != NULL | |
2489 | ? host_address_to_string (sym) : "NULL"); | |
d12307c1 | 2490 | return (struct block_symbol) {sym, static_block}; |
5f9a71c3 DC |
2491 | } |
2492 | ||
af3768e9 DE |
2493 | /* Perform the standard symbol lookup of NAME in OBJFILE: |
2494 | 1) First search expanded symtabs, and if not found | |
2495 | 2) Search the "quick" symtabs (partial or .gdb_index). | |
2496 | BLOCK_INDEX is one of GLOBAL_BLOCK or STATIC_BLOCK. */ | |
2497 | ||
d12307c1 | 2498 | static struct block_symbol |
c32e6a04 | 2499 | lookup_symbol_in_objfile (struct objfile *objfile, enum block_enum block_index, |
af3768e9 DE |
2500 | const char *name, const domain_enum domain) |
2501 | { | |
d12307c1 | 2502 | struct block_symbol result; |
af3768e9 | 2503 | |
c32e6a04 CB |
2504 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2505 | ||
b1e678d9 AB |
2506 | symbol_lookup_debug_printf ("lookup_symbol_in_objfile (%s, %s, %s, %s)", |
2507 | objfile_debug_name (objfile), | |
2508 | block_index == GLOBAL_BLOCK | |
2509 | ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
2510 | name, domain_name (domain)); | |
cc485e62 | 2511 | |
af3768e9 DE |
2512 | result = lookup_symbol_in_objfile_symtabs (objfile, block_index, |
2513 | name, domain); | |
d12307c1 | 2514 | if (result.symbol != NULL) |
af3768e9 | 2515 | { |
b1e678d9 AB |
2516 | symbol_lookup_debug_printf |
2517 | ("lookup_symbol_in_objfile (...) = %s (in symtabs)", | |
2518 | host_address_to_string (result.symbol)); | |
cc485e62 | 2519 | return result; |
af3768e9 DE |
2520 | } |
2521 | ||
cc485e62 DE |
2522 | result = lookup_symbol_via_quick_fns (objfile, block_index, |
2523 | name, domain); | |
b1e678d9 AB |
2524 | symbol_lookup_debug_printf ("lookup_symbol_in_objfile (...) = %s%s", |
2525 | result.symbol != NULL | |
2526 | ? host_address_to_string (result.symbol) | |
2527 | : "NULL", | |
2528 | result.symbol != NULL ? " (via quick fns)" | |
2529 | : ""); | |
af3768e9 DE |
2530 | return result; |
2531 | } | |
2532 | ||
9aa55206 CB |
2533 | /* This function contains the common code of lookup_{global,static}_symbol. |
2534 | OBJFILE is only used if BLOCK_INDEX is GLOBAL_SCOPE, in which case it is | |
2535 | the objfile to start the lookup in. */ | |
5f9a71c3 | 2536 | |
9aa55206 CB |
2537 | static struct block_symbol |
2538 | lookup_global_or_static_symbol (const char *name, | |
2539 | enum block_enum block_index, | |
2540 | struct objfile *objfile, | |
2541 | const domain_enum domain) | |
5f9a71c3 | 2542 | { |
f57d2163 | 2543 | struct symbol_cache *cache = get_symbol_cache (current_program_space); |
d12307c1 | 2544 | struct block_symbol result; |
f57d2163 DE |
2545 | struct block_symbol_cache *bsc; |
2546 | struct symbol_cache_slot *slot; | |
b2fb95e0 | 2547 | |
9aa55206 CB |
2548 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2549 | gdb_assert (objfile == nullptr || block_index == GLOBAL_BLOCK); | |
f57d2163 DE |
2550 | |
2551 | /* First see if we can find the symbol in the cache. | |
2552 | This works because we use the current objfile to qualify the lookup. */ | |
9aa55206 | 2553 | result = symbol_cache_lookup (cache, objfile, block_index, name, domain, |
d12307c1 PMR |
2554 | &bsc, &slot); |
2555 | if (result.symbol != NULL) | |
f57d2163 | 2556 | { |
d12307c1 | 2557 | if (SYMBOL_LOOKUP_FAILED_P (result)) |
6640a367 | 2558 | return {}; |
d12307c1 | 2559 | return result; |
f57d2163 DE |
2560 | } |
2561 | ||
626ca2c0 | 2562 | /* Do a global search (of global blocks, heh). */ |
d12307c1 | 2563 | if (result.symbol == NULL) |
6e9cd73e SM |
2564 | gdbarch_iterate_over_objfiles_in_search_order |
2565 | (objfile != NULL ? objfile->arch () : target_gdbarch (), | |
2566 | [&result, block_index, name, domain] (struct objfile *objfile_iter) | |
2567 | { | |
2568 | result = lookup_symbol_in_objfile (objfile_iter, block_index, | |
2569 | name, domain); | |
2570 | return result.symbol != nullptr; | |
2571 | }, | |
2572 | objfile); | |
6a3ca067 | 2573 | |
d12307c1 PMR |
2574 | if (result.symbol != NULL) |
2575 | symbol_cache_mark_found (bsc, slot, objfile, result.symbol, result.block); | |
f57d2163 DE |
2576 | else |
2577 | symbol_cache_mark_not_found (bsc, slot, objfile, name, domain); | |
2578 | ||
d12307c1 | 2579 | return result; |
5f9a71c3 DC |
2580 | } |
2581 | ||
9aa55206 CB |
2582 | /* See symtab.h. */ |
2583 | ||
2584 | struct block_symbol | |
2585 | lookup_static_symbol (const char *name, const domain_enum domain) | |
2586 | { | |
2587 | return lookup_global_or_static_symbol (name, STATIC_BLOCK, nullptr, domain); | |
2588 | } | |
2589 | ||
2590 | /* See symtab.h. */ | |
2591 | ||
2592 | struct block_symbol | |
2593 | lookup_global_symbol (const char *name, | |
2594 | const struct block *block, | |
2595 | const domain_enum domain) | |
2596 | { | |
d3d32391 AB |
2597 | /* If a block was passed in, we want to search the corresponding |
2598 | global block first. This yields "more expected" behavior, and is | |
2599 | needed to support 'FILENAME'::VARIABLE lookups. */ | |
8f14fd11 TT |
2600 | const struct block *global_block |
2601 | = block == nullptr ? nullptr : block_global_block (block); | |
70bc38f5 | 2602 | symbol *sym = NULL; |
d3d32391 AB |
2603 | if (global_block != nullptr) |
2604 | { | |
70bc38f5 TV |
2605 | sym = lookup_symbol_in_block (name, |
2606 | symbol_name_match_type::FULL, | |
2607 | global_block, domain); | |
2608 | if (sym != NULL && best_symbol (sym, domain)) | |
d3d32391 AB |
2609 | return { sym, global_block }; |
2610 | } | |
2611 | ||
d6bc0792 TT |
2612 | struct objfile *objfile = nullptr; |
2613 | if (block != nullptr) | |
2614 | { | |
46baa3c6 | 2615 | objfile = block->objfile (); |
d6bc0792 TT |
2616 | if (objfile->separate_debug_objfile_backlink != nullptr) |
2617 | objfile = objfile->separate_debug_objfile_backlink; | |
2618 | } | |
2619 | ||
70bc38f5 TV |
2620 | block_symbol bs |
2621 | = lookup_global_or_static_symbol (name, GLOBAL_BLOCK, objfile, domain); | |
2622 | if (better_symbol (sym, bs.symbol, domain) == sym) | |
2623 | return { sym, global_block }; | |
2624 | else | |
2625 | return bs; | |
9aa55206 CB |
2626 | } |
2627 | ||
ececd218 | 2628 | bool |
4186eb54 KS |
2629 | symbol_matches_domain (enum language symbol_language, |
2630 | domain_enum symbol_domain, | |
2631 | domain_enum domain) | |
2632 | { | |
2633 | /* For C++ "struct foo { ... }" also defines a typedef for "foo". | |
4186eb54 KS |
2634 | Similarly, any Ada type declaration implicitly defines a typedef. */ |
2635 | if (symbol_language == language_cplus | |
2636 | || symbol_language == language_d | |
65547233 TT |
2637 | || symbol_language == language_ada |
2638 | || symbol_language == language_rust) | |
4186eb54 KS |
2639 | { |
2640 | if ((domain == VAR_DOMAIN || domain == STRUCT_DOMAIN) | |
2641 | && symbol_domain == STRUCT_DOMAIN) | |
ececd218 | 2642 | return true; |
4186eb54 KS |
2643 | } |
2644 | /* For all other languages, strict match is required. */ | |
2645 | return (symbol_domain == domain); | |
2646 | } | |
2647 | ||
cf901d3b | 2648 | /* See symtab.h. */ |
c906108c | 2649 | |
ccefe4c4 TT |
2650 | struct type * |
2651 | lookup_transparent_type (const char *name) | |
c906108c | 2652 | { |
54f4ca46 | 2653 | return current_language->lookup_transparent_type (name); |
ccefe4c4 | 2654 | } |
9af17804 | 2655 | |
ccefe4c4 TT |
2656 | /* A helper for basic_lookup_transparent_type that interfaces with the |
2657 | "quick" symbol table functions. */ | |
357e46e7 | 2658 | |
ccefe4c4 | 2659 | static struct type * |
ddbcedf5 CB |
2660 | basic_lookup_transparent_type_quick (struct objfile *objfile, |
2661 | enum block_enum block_index, | |
ccefe4c4 TT |
2662 | const char *name) |
2663 | { | |
43f3e411 | 2664 | struct compunit_symtab *cust; |
346d1dfe | 2665 | const struct blockvector *bv; |
582942f4 | 2666 | const struct block *block; |
ccefe4c4 | 2667 | struct symbol *sym; |
c906108c | 2668 | |
4d080b46 | 2669 | cust = objfile->lookup_symbol (block_index, name, STRUCT_DOMAIN); |
43f3e411 | 2670 | if (cust == NULL) |
ccefe4c4 | 2671 | return NULL; |
c906108c | 2672 | |
af39c5c8 | 2673 | bv = cust->blockvector (); |
63d609de | 2674 | block = bv->block (block_index); |
b2e2f908 DE |
2675 | sym = block_find_symbol (block, name, STRUCT_DOMAIN, |
2676 | block_find_non_opaque_type, NULL); | |
2677 | if (sym == NULL) | |
43f3e411 | 2678 | error_in_psymtab_expansion (block_index, name, cust); |
5f9c5a63 SM |
2679 | gdb_assert (!TYPE_IS_OPAQUE (sym->type ())); |
2680 | return sym->type (); | |
b2e2f908 | 2681 | } |
08c23b0d | 2682 | |
b2e2f908 DE |
2683 | /* Subroutine of basic_lookup_transparent_type to simplify it. |
2684 | Look up the non-opaque definition of NAME in BLOCK_INDEX of OBJFILE. | |
2685 | BLOCK_INDEX is either GLOBAL_BLOCK or STATIC_BLOCK. */ | |
2686 | ||
2687 | static struct type * | |
ddbcedf5 CB |
2688 | basic_lookup_transparent_type_1 (struct objfile *objfile, |
2689 | enum block_enum block_index, | |
b2e2f908 DE |
2690 | const char *name) |
2691 | { | |
b2e2f908 DE |
2692 | const struct blockvector *bv; |
2693 | const struct block *block; | |
2694 | const struct symbol *sym; | |
2695 | ||
b669c953 | 2696 | for (compunit_symtab *cust : objfile->compunits ()) |
b2e2f908 | 2697 | { |
af39c5c8 | 2698 | bv = cust->blockvector (); |
63d609de | 2699 | block = bv->block (block_index); |
b2e2f908 DE |
2700 | sym = block_find_symbol (block, name, STRUCT_DOMAIN, |
2701 | block_find_non_opaque_type, NULL); | |
2702 | if (sym != NULL) | |
2703 | { | |
5f9c5a63 SM |
2704 | gdb_assert (!TYPE_IS_OPAQUE (sym->type ())); |
2705 | return sym->type (); | |
b2e2f908 DE |
2706 | } |
2707 | } | |
c906108c | 2708 | |
ccefe4c4 | 2709 | return NULL; |
b368761e | 2710 | } |
c906108c | 2711 | |
b368761e DC |
2712 | /* The standard implementation of lookup_transparent_type. This code |
2713 | was modeled on lookup_symbol -- the parts not relevant to looking | |
2714 | up types were just left out. In particular it's assumed here that | |
cf901d3b | 2715 | types are available in STRUCT_DOMAIN and only in file-static or |
b368761e | 2716 | global blocks. */ |
c906108c SS |
2717 | |
2718 | struct type * | |
b368761e | 2719 | basic_lookup_transparent_type (const char *name) |
c906108c | 2720 | { |
ccefe4c4 | 2721 | struct type *t; |
c906108c SS |
2722 | |
2723 | /* Now search all the global symbols. Do the symtab's first, then | |
c378eb4e | 2724 | check the psymtab's. If a psymtab indicates the existence |
c906108c SS |
2725 | of the desired name as a global, then do psymtab-to-symtab |
2726 | conversion on the fly and return the found symbol. */ | |
c5aa993b | 2727 | |
2030c079 | 2728 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2729 | { |
2730 | t = basic_lookup_transparent_type_1 (objfile, GLOBAL_BLOCK, name); | |
2731 | if (t) | |
2732 | return t; | |
2733 | } | |
c906108c | 2734 | |
2030c079 | 2735 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2736 | { |
2737 | t = basic_lookup_transparent_type_quick (objfile, GLOBAL_BLOCK, name); | |
2738 | if (t) | |
2739 | return t; | |
2740 | } | |
c906108c SS |
2741 | |
2742 | /* Now search the static file-level symbols. | |
2743 | Not strictly correct, but more useful than an error. | |
2744 | Do the symtab's first, then | |
c378eb4e | 2745 | check the psymtab's. If a psymtab indicates the existence |
c906108c | 2746 | of the desired name as a file-level static, then do psymtab-to-symtab |
c378eb4e | 2747 | conversion on the fly and return the found symbol. */ |
c906108c | 2748 | |
2030c079 | 2749 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2750 | { |
2751 | t = basic_lookup_transparent_type_1 (objfile, STATIC_BLOCK, name); | |
2752 | if (t) | |
2753 | return t; | |
2754 | } | |
c906108c | 2755 | |
2030c079 | 2756 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2757 | { |
2758 | t = basic_lookup_transparent_type_quick (objfile, STATIC_BLOCK, name); | |
2759 | if (t) | |
2760 | return t; | |
2761 | } | |
ccefe4c4 | 2762 | |
c906108c SS |
2763 | return (struct type *) 0; |
2764 | } | |
2765 | ||
6969f124 | 2766 | /* See symtab.h. */ |
f8eba3c6 | 2767 | |
6969f124 | 2768 | bool |
b5ec771e PA |
2769 | iterate_over_symbols (const struct block *block, |
2770 | const lookup_name_info &name, | |
f8eba3c6 | 2771 | const domain_enum domain, |
14bc53a8 | 2772 | gdb::function_view<symbol_found_callback_ftype> callback) |
f8eba3c6 | 2773 | { |
4eeaa230 DE |
2774 | struct block_iterator iter; |
2775 | struct symbol *sym; | |
f8eba3c6 | 2776 | |
358d6ab3 | 2777 | ALL_BLOCK_SYMBOLS_WITH_NAME (block, name, iter, sym) |
4eeaa230 | 2778 | { |
6c9c307c | 2779 | if (symbol_matches_domain (sym->language (), sym->domain (), domain)) |
f8eba3c6 | 2780 | { |
7e41c8db KS |
2781 | struct block_symbol block_sym = {sym, block}; |
2782 | ||
2783 | if (!callback (&block_sym)) | |
6969f124 | 2784 | return false; |
f8eba3c6 | 2785 | } |
f8eba3c6 | 2786 | } |
6969f124 | 2787 | return true; |
f8eba3c6 TT |
2788 | } |
2789 | ||
6a3dbf1b TT |
2790 | /* See symtab.h. */ |
2791 | ||
2792 | bool | |
2793 | iterate_over_symbols_terminated | |
2794 | (const struct block *block, | |
2795 | const lookup_name_info &name, | |
2796 | const domain_enum domain, | |
2797 | gdb::function_view<symbol_found_callback_ftype> callback) | |
2798 | { | |
2799 | if (!iterate_over_symbols (block, name, domain, callback)) | |
2800 | return false; | |
2801 | struct block_symbol block_sym = {nullptr, block}; | |
2802 | return callback (&block_sym); | |
2803 | } | |
2804 | ||
43f3e411 DE |
2805 | /* Find the compunit symtab associated with PC and SECTION. |
2806 | This will read in debug info as necessary. */ | |
c906108c | 2807 | |
43f3e411 DE |
2808 | struct compunit_symtab * |
2809 | find_pc_sect_compunit_symtab (CORE_ADDR pc, struct obj_section *section) | |
c906108c | 2810 | { |
43f3e411 | 2811 | struct compunit_symtab *best_cust = NULL; |
61eb46a4 | 2812 | CORE_ADDR best_cust_range = 0; |
77e371c0 | 2813 | struct bound_minimal_symbol msymbol; |
8a48e967 DJ |
2814 | |
2815 | /* If we know that this is not a text address, return failure. This is | |
2816 | necessary because we loop based on the block's high and low code | |
2817 | addresses, which do not include the data ranges, and because | |
2818 | we call find_pc_sect_psymtab which has a similar restriction based | |
2819 | on the partial_symtab's texthigh and textlow. */ | |
77e371c0 | 2820 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); |
1ed9f74e | 2821 | if (msymbol.minsym && msymbol.minsym->data_p ()) |
8a48e967 | 2822 | return NULL; |
c906108c SS |
2823 | |
2824 | /* Search all symtabs for the one whose file contains our address, and which | |
2825 | is the smallest of all the ones containing the address. This is designed | |
2826 | to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000 | |
2827 | and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from | |
2828 | 0x1000-0x4000, but for address 0x2345 we want to return symtab b. | |
2829 | ||
2830 | This happens for native ecoff format, where code from included files | |
c378eb4e | 2831 | gets its own symtab. The symtab for the included file should have |
c906108c SS |
2832 | been read in already via the dependency mechanism. |
2833 | It might be swifter to create several symtabs with the same name | |
2834 | like xcoff does (I'm not sure). | |
2835 | ||
2836 | It also happens for objfiles that have their functions reordered. | |
2837 | For these, the symtab we are looking for is not necessarily read in. */ | |
2838 | ||
2030c079 | 2839 | for (objfile *obj_file : current_program_space->objfiles ()) |
d8aeb77f | 2840 | { |
b669c953 | 2841 | for (compunit_symtab *cust : obj_file->compunits ()) |
d8aeb77f | 2842 | { |
af39c5c8 | 2843 | const struct blockvector *bv = cust->blockvector (); |
63d609de | 2844 | const struct block *global_block = bv->global_block (); |
4b8791e1 SM |
2845 | CORE_ADDR start = global_block->start (); |
2846 | CORE_ADDR end = global_block->end (); | |
61eb46a4 TV |
2847 | bool in_range_p = start <= pc && pc < end; |
2848 | if (!in_range_p) | |
2849 | continue; | |
43f3e411 | 2850 | |
414705d1 | 2851 | if (bv->map () != nullptr) |
1b00ef06 | 2852 | { |
769520b7 | 2853 | if (bv->map ()->find (pc) == nullptr) |
1b00ef06 TV |
2854 | continue; |
2855 | ||
2856 | return cust; | |
2857 | } | |
2858 | ||
61eb46a4 TV |
2859 | CORE_ADDR range = end - start; |
2860 | if (best_cust != nullptr | |
2861 | && range >= best_cust_range) | |
2862 | /* Cust doesn't have a smaller range than best_cust, skip it. */ | |
2863 | continue; | |
2864 | ||
2865 | /* For an objfile that has its functions reordered, | |
2866 | find_pc_psymtab will find the proper partial symbol table | |
2867 | and we simply return its corresponding symtab. */ | |
2868 | /* In order to better support objfiles that contain both | |
2869 | stabs and coff debugging info, we continue on if a psymtab | |
2870 | can't be found. */ | |
4d080b46 | 2871 | if ((obj_file->flags & OBJF_REORDERED) != 0) |
61eb46a4 TV |
2872 | { |
2873 | struct compunit_symtab *result; | |
2874 | ||
2875 | result | |
4d080b46 TT |
2876 | = obj_file->find_pc_sect_compunit_symtab (msymbol, |
2877 | pc, | |
2878 | section, | |
2879 | 0); | |
61eb46a4 TV |
2880 | if (result != NULL) |
2881 | return result; | |
2882 | } | |
c906108c | 2883 | |
61eb46a4 | 2884 | if (section != 0) |
d8aeb77f | 2885 | { |
61eb46a4 TV |
2886 | struct symbol *sym = NULL; |
2887 | struct block_iterator iter; | |
2888 | ||
bd24c5d6 TV |
2889 | for (int b_index = GLOBAL_BLOCK; |
2890 | b_index <= STATIC_BLOCK && sym == NULL; | |
2891 | ++b_index) | |
d8aeb77f | 2892 | { |
63d609de | 2893 | const struct block *b = bv->block (b_index); |
bd24c5d6 TV |
2894 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
2895 | { | |
ebbc3a7d | 2896 | if (matching_obj_sections (sym->obj_section (obj_file), |
bd24c5d6 TV |
2897 | section)) |
2898 | break; | |
2899 | } | |
d8aeb77f | 2900 | } |
61eb46a4 TV |
2901 | if (sym == NULL) |
2902 | continue; /* No symbol in this symtab matches | |
d8aeb77f | 2903 | section. */ |
d8aeb77f | 2904 | } |
61eb46a4 TV |
2905 | |
2906 | /* Cust is best found sofar, save it. */ | |
2907 | best_cust = cust; | |
2908 | best_cust_range = range; | |
d8aeb77f TT |
2909 | } |
2910 | } | |
c906108c | 2911 | |
43f3e411 DE |
2912 | if (best_cust != NULL) |
2913 | return best_cust; | |
c906108c | 2914 | |
072cabfe DE |
2915 | /* Not found in symtabs, search the "quick" symtabs (e.g. psymtabs). */ |
2916 | ||
2030c079 | 2917 | for (objfile *objf : current_program_space->objfiles ()) |
aed57c53 | 2918 | { |
4d080b46 TT |
2919 | struct compunit_symtab *result |
2920 | = objf->find_pc_sect_compunit_symtab (msymbol, pc, section, 1); | |
aed57c53 TT |
2921 | if (result != NULL) |
2922 | return result; | |
2923 | } | |
ccefe4c4 TT |
2924 | |
2925 | return NULL; | |
c906108c SS |
2926 | } |
2927 | ||
43f3e411 DE |
2928 | /* Find the compunit symtab associated with PC. |
2929 | This will read in debug info as necessary. | |
2930 | Backward compatibility, no section. */ | |
c906108c | 2931 | |
43f3e411 DE |
2932 | struct compunit_symtab * |
2933 | find_pc_compunit_symtab (CORE_ADDR pc) | |
c906108c | 2934 | { |
43f3e411 | 2935 | return find_pc_sect_compunit_symtab (pc, find_pc_mapped_section (pc)); |
c906108c | 2936 | } |
71a3c369 TT |
2937 | |
2938 | /* See symtab.h. */ | |
2939 | ||
2940 | struct symbol * | |
2941 | find_symbol_at_address (CORE_ADDR address) | |
2942 | { | |
1f2624a3 TT |
2943 | /* A helper function to search a given symtab for a symbol matching |
2944 | ADDR. */ | |
2945 | auto search_symtab = [] (compunit_symtab *symtab, CORE_ADDR addr) -> symbol * | |
aed57c53 | 2946 | { |
af39c5c8 | 2947 | const struct blockvector *bv = symtab->blockvector (); |
71a3c369 | 2948 | |
1f2624a3 | 2949 | for (int i = GLOBAL_BLOCK; i <= STATIC_BLOCK; ++i) |
aed57c53 | 2950 | { |
63d609de | 2951 | const struct block *b = bv->block (i); |
1f2624a3 TT |
2952 | struct block_iterator iter; |
2953 | struct symbol *sym; | |
71a3c369 | 2954 | |
1f2624a3 | 2955 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
71a3c369 | 2956 | { |
66d7f48f | 2957 | if (sym->aclass () == LOC_STATIC |
4aeddc50 | 2958 | && sym->value_address () == addr) |
1f2624a3 TT |
2959 | return sym; |
2960 | } | |
2961 | } | |
2962 | return nullptr; | |
2963 | }; | |
aed57c53 | 2964 | |
1f2624a3 TT |
2965 | for (objfile *objfile : current_program_space->objfiles ()) |
2966 | { | |
4d080b46 TT |
2967 | /* If this objfile was read with -readnow, then we need to |
2968 | search the symtabs directly. */ | |
2969 | if ((objfile->flags & OBJF_READNOW) != 0) | |
1f2624a3 TT |
2970 | { |
2971 | for (compunit_symtab *symtab : objfile->compunits ()) | |
2972 | { | |
2973 | struct symbol *sym = search_symtab (symtab, address); | |
2974 | if (sym != nullptr) | |
2975 | return sym; | |
2976 | } | |
2977 | } | |
2978 | else | |
2979 | { | |
2980 | struct compunit_symtab *symtab | |
4d080b46 | 2981 | = objfile->find_compunit_symtab_by_address (address); |
1f2624a3 TT |
2982 | if (symtab != NULL) |
2983 | { | |
2984 | struct symbol *sym = search_symtab (symtab, address); | |
2985 | if (sym != nullptr) | |
2986 | return sym; | |
71a3c369 | 2987 | } |
aed57c53 TT |
2988 | } |
2989 | } | |
71a3c369 TT |
2990 | |
2991 | return NULL; | |
2992 | } | |
2993 | ||
c906108c | 2994 | \f |
c5aa993b | 2995 | |
7e73cedf | 2996 | /* Find the source file and line number for a given PC value and SECTION. |
c906108c SS |
2997 | Return a structure containing a symtab pointer, a line number, |
2998 | and a pc range for the entire source line. | |
2999 | The value's .pc field is NOT the specified pc. | |
3000 | NOTCURRENT nonzero means, if specified pc is on a line boundary, | |
3001 | use the line that ends there. Otherwise, in that case, the line | |
3002 | that begins there is used. */ | |
3003 | ||
3004 | /* The big complication here is that a line may start in one file, and end just | |
3005 | before the start of another file. This usually occurs when you #include | |
3006 | code in the middle of a subroutine. To properly find the end of a line's PC | |
3007 | range, we must search all symtabs associated with this compilation unit, and | |
3008 | find the one whose first PC is closer than that of the next line in this | |
3009 | symtab. */ | |
3010 | ||
c906108c | 3011 | struct symtab_and_line |
714835d5 | 3012 | find_pc_sect_line (CORE_ADDR pc, struct obj_section *section, int notcurrent) |
c906108c | 3013 | { |
43f3e411 | 3014 | struct compunit_symtab *cust; |
52f0bd74 AC |
3015 | struct linetable *l; |
3016 | int len; | |
52f0bd74 | 3017 | struct linetable_entry *item; |
346d1dfe | 3018 | const struct blockvector *bv; |
7cbd4a93 | 3019 | struct bound_minimal_symbol msymbol; |
c906108c SS |
3020 | |
3021 | /* Info on best line seen so far, and where it starts, and its file. */ | |
3022 | ||
3023 | struct linetable_entry *best = NULL; | |
3024 | CORE_ADDR best_end = 0; | |
3025 | struct symtab *best_symtab = 0; | |
3026 | ||
3027 | /* Store here the first line number | |
3028 | of a file which contains the line at the smallest pc after PC. | |
3029 | If we don't find a line whose range contains PC, | |
3030 | we will use a line one less than this, | |
3031 | with a range from the start of that file to the first line's pc. */ | |
3032 | struct linetable_entry *alt = NULL; | |
c906108c SS |
3033 | |
3034 | /* Info on best line seen in this file. */ | |
3035 | ||
3036 | struct linetable_entry *prev; | |
3037 | ||
3038 | /* If this pc is not from the current frame, | |
3039 | it is the address of the end of a call instruction. | |
3040 | Quite likely that is the start of the following statement. | |
3041 | But what we want is the statement containing the instruction. | |
3042 | Fudge the pc to make sure we get that. */ | |
3043 | ||
b77b1eb7 JB |
3044 | /* It's tempting to assume that, if we can't find debugging info for |
3045 | any function enclosing PC, that we shouldn't search for line | |
3046 | number info, either. However, GAS can emit line number info for | |
3047 | assembly files --- very helpful when debugging hand-written | |
3048 | assembly code. In such a case, we'd have no debug info for the | |
3049 | function, but we would have line info. */ | |
648f4f79 | 3050 | |
c906108c SS |
3051 | if (notcurrent) |
3052 | pc -= 1; | |
3053 | ||
c5aa993b | 3054 | /* elz: added this because this function returned the wrong |
c906108c | 3055 | information if the pc belongs to a stub (import/export) |
c378eb4e | 3056 | to call a shlib function. This stub would be anywhere between |
9af17804 | 3057 | two functions in the target, and the line info was erroneously |
c378eb4e MS |
3058 | taken to be the one of the line before the pc. */ |
3059 | ||
c906108c | 3060 | /* RT: Further explanation: |
c5aa993b | 3061 | |
c906108c SS |
3062 | * We have stubs (trampolines) inserted between procedures. |
3063 | * | |
3064 | * Example: "shr1" exists in a shared library, and a "shr1" stub also | |
3065 | * exists in the main image. | |
3066 | * | |
3067 | * In the minimal symbol table, we have a bunch of symbols | |
c378eb4e | 3068 | * sorted by start address. The stubs are marked as "trampoline", |
c906108c SS |
3069 | * the others appear as text. E.g.: |
3070 | * | |
9af17804 | 3071 | * Minimal symbol table for main image |
c906108c SS |
3072 | * main: code for main (text symbol) |
3073 | * shr1: stub (trampoline symbol) | |
3074 | * foo: code for foo (text symbol) | |
3075 | * ... | |
3076 | * Minimal symbol table for "shr1" image: | |
3077 | * ... | |
3078 | * shr1: code for shr1 (text symbol) | |
3079 | * ... | |
3080 | * | |
3081 | * So the code below is trying to detect if we are in the stub | |
3082 | * ("shr1" stub), and if so, find the real code ("shr1" trampoline), | |
3083 | * and if found, do the symbolization from the real-code address | |
3084 | * rather than the stub address. | |
3085 | * | |
3086 | * Assumptions being made about the minimal symbol table: | |
3087 | * 1. lookup_minimal_symbol_by_pc() will return a trampoline only | |
c378eb4e | 3088 | * if we're really in the trampoline.s If we're beyond it (say |
9af17804 | 3089 | * we're in "foo" in the above example), it'll have a closer |
c906108c SS |
3090 | * symbol (the "foo" text symbol for example) and will not |
3091 | * return the trampoline. | |
3092 | * 2. lookup_minimal_symbol_text() will find a real text symbol | |
3093 | * corresponding to the trampoline, and whose address will | |
c378eb4e | 3094 | * be different than the trampoline address. I put in a sanity |
c906108c SS |
3095 | * check for the address being the same, to avoid an |
3096 | * infinite recursion. | |
3097 | */ | |
c5aa993b | 3098 | msymbol = lookup_minimal_symbol_by_pc (pc); |
7cbd4a93 | 3099 | if (msymbol.minsym != NULL) |
60f62e2b | 3100 | if (msymbol.minsym->type () == mst_solib_trampoline) |
c5aa993b | 3101 | { |
77e371c0 | 3102 | struct bound_minimal_symbol mfunsym |
c9d95fa3 | 3103 | = lookup_minimal_symbol_text (msymbol.minsym->linkage_name (), |
77e371c0 TT |
3104 | NULL); |
3105 | ||
3106 | if (mfunsym.minsym == NULL) | |
c5aa993b JM |
3107 | /* I eliminated this warning since it is coming out |
3108 | * in the following situation: | |
3109 | * gdb shmain // test program with shared libraries | |
3110 | * (gdb) break shr1 // function in shared lib | |
3111 | * Warning: In stub for ... | |
9af17804 | 3112 | * In the above situation, the shared lib is not loaded yet, |
c5aa993b JM |
3113 | * so of course we can't find the real func/line info, |
3114 | * but the "break" still works, and the warning is annoying. | |
c378eb4e | 3115 | * So I commented out the warning. RT */ |
3e43a32a | 3116 | /* warning ("In stub for %s; unable to find real function/line info", |
987012b8 | 3117 | msymbol->linkage_name ()); */ |
c378eb4e | 3118 | ; |
c5aa993b | 3119 | /* fall through */ |
4aeddc50 SM |
3120 | else if (mfunsym.value_address () |
3121 | == msymbol.value_address ()) | |
c5aa993b | 3122 | /* Avoid infinite recursion */ |
c378eb4e | 3123 | /* See above comment about why warning is commented out. */ |
3e43a32a | 3124 | /* warning ("In stub for %s; unable to find real function/line info", |
987012b8 | 3125 | msymbol->linkage_name ()); */ |
c378eb4e | 3126 | ; |
c5aa993b JM |
3127 | /* fall through */ |
3128 | else | |
dd69bf7a KB |
3129 | { |
3130 | /* Detect an obvious case of infinite recursion. If this | |
3131 | should occur, we'd like to know about it, so error out, | |
3132 | fatally. */ | |
4aeddc50 | 3133 | if (mfunsym.value_address () == pc) |
f34652de | 3134 | internal_error (_("Infinite recursion detected in find_pc_sect_line;" |
dd69bf7a KB |
3135 | "please file a bug report")); |
3136 | ||
4aeddc50 | 3137 | return find_pc_line (mfunsym.value_address (), 0); |
dd69bf7a | 3138 | } |
c5aa993b | 3139 | } |
c906108c | 3140 | |
51abb421 PA |
3141 | symtab_and_line val; |
3142 | val.pspace = current_program_space; | |
c906108c | 3143 | |
43f3e411 DE |
3144 | cust = find_pc_sect_compunit_symtab (pc, section); |
3145 | if (cust == NULL) | |
c906108c | 3146 | { |
c378eb4e | 3147 | /* If no symbol information, return previous pc. */ |
c906108c SS |
3148 | if (notcurrent) |
3149 | pc++; | |
3150 | val.pc = pc; | |
3151 | return val; | |
3152 | } | |
3153 | ||
af39c5c8 | 3154 | bv = cust->blockvector (); |
c906108c SS |
3155 | |
3156 | /* Look at all the symtabs that share this blockvector. | |
3157 | They all have the same apriori range, that we found was right; | |
3158 | but they have different line tables. */ | |
3159 | ||
102cc235 | 3160 | for (symtab *iter_s : cust->filetabs ()) |
c906108c SS |
3161 | { |
3162 | /* Find the best line in this symtab. */ | |
5b607461 | 3163 | l = iter_s->linetable (); |
c906108c | 3164 | if (!l) |
c5aa993b | 3165 | continue; |
c906108c SS |
3166 | len = l->nitems; |
3167 | if (len <= 0) | |
3168 | { | |
3169 | /* I think len can be zero if the symtab lacks line numbers | |
3170 | (e.g. gcc -g1). (Either that or the LINETABLE is NULL; | |
3171 | I'm not sure which, and maybe it depends on the symbol | |
3172 | reader). */ | |
3173 | continue; | |
3174 | } | |
3175 | ||
3176 | prev = NULL; | |
c378eb4e | 3177 | item = l->item; /* Get first line info. */ |
c906108c SS |
3178 | |
3179 | /* Is this file's first line closer than the first lines of other files? | |
dda83cd7 | 3180 | If so, record this file, and its first line, as best alternate. */ |
c906108c | 3181 | if (item->pc > pc && (!alt || item->pc < alt->pc)) |
c656bca5 | 3182 | alt = item; |
c906108c | 3183 | |
b926417a | 3184 | auto pc_compare = [](const CORE_ADDR & comp_pc, |
7cbe16e9 SR |
3185 | const struct linetable_entry & lhs)->bool |
3186 | { | |
b926417a | 3187 | return comp_pc < lhs.pc; |
7cbe16e9 | 3188 | }; |
c906108c | 3189 | |
7cbe16e9 SR |
3190 | struct linetable_entry *first = item; |
3191 | struct linetable_entry *last = item + len; | |
3192 | item = std::upper_bound (first, last, pc, pc_compare); | |
3193 | if (item != first) | |
d8cc8af6 | 3194 | prev = item - 1; /* Found a matching item. */ |
c906108c SS |
3195 | |
3196 | /* At this point, prev points at the line whose start addr is <= pc, and | |
dda83cd7 SM |
3197 | item points at the next line. If we ran off the end of the linetable |
3198 | (pc >= start of the last line), then prev == item. If pc < start of | |
3199 | the first line, prev will not be set. */ | |
c906108c SS |
3200 | |
3201 | /* Is this file's best line closer than the best in the other files? | |
dda83cd7 SM |
3202 | If so, record this file, and its best line, as best so far. Don't |
3203 | save prev if it represents the end of a function (i.e. line number | |
3204 | 0) instead of a real line. */ | |
c906108c | 3205 | |
083ae935 | 3206 | if (prev && prev->line && (!best || prev->pc > best->pc)) |
c906108c SS |
3207 | { |
3208 | best = prev; | |
43f3e411 | 3209 | best_symtab = iter_s; |
25d53da1 | 3210 | |
8c95582d AB |
3211 | /* If during the binary search we land on a non-statement entry, |
3212 | scan backward through entries at the same address to see if | |
3213 | there is an entry marked as is-statement. In theory this | |
3214 | duplication should have been removed from the line table | |
3215 | during construction, this is just a double check. If the line | |
3216 | table has had the duplication removed then this should be | |
3217 | pretty cheap. */ | |
3218 | if (!best->is_stmt) | |
3219 | { | |
3220 | struct linetable_entry *tmp = best; | |
3221 | while (tmp > first && (tmp - 1)->pc == tmp->pc | |
3222 | && (tmp - 1)->line != 0 && !tmp->is_stmt) | |
3223 | --tmp; | |
3224 | if (tmp->is_stmt) | |
3225 | best = tmp; | |
3226 | } | |
3227 | ||
25d53da1 KB |
3228 | /* Discard BEST_END if it's before the PC of the current BEST. */ |
3229 | if (best_end <= best->pc) | |
3230 | best_end = 0; | |
c906108c | 3231 | } |
25d53da1 KB |
3232 | |
3233 | /* If another line (denoted by ITEM) is in the linetable and its | |
7cbe16e9 | 3234 | PC is after BEST's PC, but before the current BEST_END, then |
25d53da1 | 3235 | use ITEM's PC as the new best_end. */ |
4ee89e90 | 3236 | if (best && item < last && item->pc > best->pc |
7cbe16e9 | 3237 | && (best_end == 0 || best_end > item->pc)) |
25d53da1 | 3238 | best_end = item->pc; |
c906108c SS |
3239 | } |
3240 | ||
3241 | if (!best_symtab) | |
3242 | { | |
e86e87f7 DJ |
3243 | /* If we didn't find any line number info, just return zeros. |
3244 | We used to return alt->line - 1 here, but that could be | |
3245 | anywhere; if we don't have line number info for this PC, | |
3246 | don't make some up. */ | |
3247 | val.pc = pc; | |
c906108c | 3248 | } |
e8717518 FF |
3249 | else if (best->line == 0) |
3250 | { | |
3251 | /* If our best fit is in a range of PC's for which no line | |
3252 | number info is available (line number is zero) then we didn't | |
c378eb4e | 3253 | find any valid line information. */ |
e8717518 FF |
3254 | val.pc = pc; |
3255 | } | |
c906108c SS |
3256 | else |
3257 | { | |
8c95582d | 3258 | val.is_stmt = best->is_stmt; |
c906108c SS |
3259 | val.symtab = best_symtab; |
3260 | val.line = best->line; | |
3261 | val.pc = best->pc; | |
3262 | if (best_end && (!alt || best_end < alt->pc)) | |
3263 | val.end = best_end; | |
3264 | else if (alt) | |
3265 | val.end = alt->pc; | |
3266 | else | |
63d609de | 3267 | val.end = bv->global_block ()->end (); |
c906108c SS |
3268 | } |
3269 | val.section = section; | |
3270 | return val; | |
3271 | } | |
3272 | ||
c378eb4e | 3273 | /* Backward compatibility (no section). */ |
c906108c SS |
3274 | |
3275 | struct symtab_and_line | |
fba45db2 | 3276 | find_pc_line (CORE_ADDR pc, int notcurrent) |
c906108c | 3277 | { |
714835d5 | 3278 | struct obj_section *section; |
c906108c SS |
3279 | |
3280 | section = find_pc_overlay (pc); | |
31a8f60f AB |
3281 | if (!pc_in_unmapped_range (pc, section)) |
3282 | return find_pc_sect_line (pc, section, notcurrent); | |
3283 | ||
3284 | /* If the original PC was an unmapped address then we translate this to a | |
3285 | mapped address in order to lookup the sal. However, as the user | |
3286 | passed us an unmapped address it makes more sense to return a result | |
3287 | that has the pc and end fields translated to unmapped addresses. */ | |
3288 | pc = overlay_mapped_address (pc, section); | |
3289 | symtab_and_line sal = find_pc_sect_line (pc, section, notcurrent); | |
3290 | sal.pc = overlay_unmapped_address (sal.pc, section); | |
3291 | sal.end = overlay_unmapped_address (sal.end, section); | |
3292 | return sal; | |
c906108c | 3293 | } |
34248c3a DE |
3294 | |
3295 | /* See symtab.h. */ | |
3296 | ||
3297 | struct symtab * | |
3298 | find_pc_line_symtab (CORE_ADDR pc) | |
3299 | { | |
3300 | struct symtab_and_line sal; | |
3301 | ||
3302 | /* This always passes zero for NOTCURRENT to find_pc_line. | |
3303 | There are currently no callers that ever pass non-zero. */ | |
3304 | sal = find_pc_line (pc, 0); | |
3305 | return sal.symtab; | |
3306 | } | |
c906108c | 3307 | \f |
c906108c SS |
3308 | /* Find line number LINE in any symtab whose name is the same as |
3309 | SYMTAB. | |
3310 | ||
3311 | If found, return the symtab that contains the linetable in which it was | |
3312 | found, set *INDEX to the index in the linetable of the best entry | |
ececd218 | 3313 | found, and set *EXACT_MATCH to true if the value returned is an |
c906108c SS |
3314 | exact match. |
3315 | ||
3316 | If not found, return NULL. */ | |
3317 | ||
50641945 | 3318 | struct symtab * |
5accd1a0 | 3319 | find_line_symtab (struct symtab *sym_tab, int line, |
ececd218 | 3320 | int *index, bool *exact_match) |
c906108c | 3321 | { |
6f43c46f | 3322 | int exact = 0; /* Initialized here to avoid a compiler warning. */ |
c906108c SS |
3323 | |
3324 | /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE | |
3325 | so far seen. */ | |
3326 | ||
3327 | int best_index; | |
3328 | struct linetable *best_linetable; | |
3329 | struct symtab *best_symtab; | |
3330 | ||
3331 | /* First try looking it up in the given symtab. */ | |
5b607461 | 3332 | best_linetable = sym_tab->linetable (); |
5accd1a0 | 3333 | best_symtab = sym_tab; |
f8eba3c6 | 3334 | best_index = find_line_common (best_linetable, line, &exact, 0); |
c906108c SS |
3335 | if (best_index < 0 || !exact) |
3336 | { | |
3337 | /* Didn't find an exact match. So we better keep looking for | |
dda83cd7 SM |
3338 | another symtab with the same name. In the case of xcoff, |
3339 | multiple csects for one source file (produced by IBM's FORTRAN | |
3340 | compiler) produce multiple symtabs (this is unavoidable | |
3341 | assuming csects can be at arbitrary places in memory and that | |
3342 | the GLOBAL_BLOCK of a symtab has a begin and end address). */ | |
c906108c SS |
3343 | |
3344 | /* BEST is the smallest linenumber > LINE so far seen, | |
dda83cd7 SM |
3345 | or 0 if none has been seen so far. |
3346 | BEST_INDEX and BEST_LINETABLE identify the item for it. */ | |
c906108c SS |
3347 | int best; |
3348 | ||
c906108c SS |
3349 | if (best_index >= 0) |
3350 | best = best_linetable->item[best_index].line; | |
3351 | else | |
3352 | best = 0; | |
3353 | ||
2030c079 | 3354 | for (objfile *objfile : current_program_space->objfiles ()) |
4d080b46 | 3355 | objfile->expand_symtabs_with_fullname (symtab_to_fullname (sym_tab)); |
51432cca | 3356 | |
2030c079 | 3357 | for (objfile *objfile : current_program_space->objfiles ()) |
8b31193a | 3358 | { |
b669c953 | 3359 | for (compunit_symtab *cu : objfile->compunits ()) |
8b31193a | 3360 | { |
102cc235 | 3361 | for (symtab *s : cu->filetabs ()) |
8b31193a TT |
3362 | { |
3363 | struct linetable *l; | |
3364 | int ind; | |
3365 | ||
3366 | if (FILENAME_CMP (sym_tab->filename, s->filename) != 0) | |
3367 | continue; | |
3368 | if (FILENAME_CMP (symtab_to_fullname (sym_tab), | |
3369 | symtab_to_fullname (s)) != 0) | |
3370 | continue; | |
5b607461 | 3371 | l = s->linetable (); |
8b31193a TT |
3372 | ind = find_line_common (l, line, &exact, 0); |
3373 | if (ind >= 0) | |
3374 | { | |
3375 | if (exact) | |
3376 | { | |
3377 | best_index = ind; | |
3378 | best_linetable = l; | |
3379 | best_symtab = s; | |
3380 | goto done; | |
3381 | } | |
3382 | if (best == 0 || l->item[ind].line < best) | |
3383 | { | |
3384 | best = l->item[ind].line; | |
3385 | best_index = ind; | |
3386 | best_linetable = l; | |
3387 | best_symtab = s; | |
3388 | } | |
3389 | } | |
3390 | } | |
3391 | } | |
3392 | } | |
c906108c | 3393 | } |
c5aa993b | 3394 | done: |
c906108c SS |
3395 | if (best_index < 0) |
3396 | return NULL; | |
3397 | ||
3398 | if (index) | |
3399 | *index = best_index; | |
3400 | if (exact_match) | |
ececd218 | 3401 | *exact_match = (exact != 0); |
c906108c SS |
3402 | |
3403 | return best_symtab; | |
3404 | } | |
f8eba3c6 TT |
3405 | |
3406 | /* Given SYMTAB, returns all the PCs function in the symtab that | |
67d89901 TT |
3407 | exactly match LINE. Returns an empty vector if there are no exact |
3408 | matches, but updates BEST_ITEM in this case. */ | |
f8eba3c6 | 3409 | |
67d89901 | 3410 | std::vector<CORE_ADDR> |
f8eba3c6 TT |
3411 | find_pcs_for_symtab_line (struct symtab *symtab, int line, |
3412 | struct linetable_entry **best_item) | |
3413 | { | |
c656bca5 | 3414 | int start = 0; |
67d89901 | 3415 | std::vector<CORE_ADDR> result; |
f8eba3c6 TT |
3416 | |
3417 | /* First, collect all the PCs that are at this line. */ | |
3418 | while (1) | |
3419 | { | |
3420 | int was_exact; | |
3421 | int idx; | |
3422 | ||
5b607461 | 3423 | idx = find_line_common (symtab->linetable (), line, &was_exact, |
8435453b | 3424 | start); |
f8eba3c6 TT |
3425 | if (idx < 0) |
3426 | break; | |
3427 | ||
3428 | if (!was_exact) | |
3429 | { | |
5b607461 | 3430 | struct linetable_entry *item = &symtab->linetable ()->item[idx]; |
f8eba3c6 | 3431 | |
8c95582d AB |
3432 | if (*best_item == NULL |
3433 | || (item->line < (*best_item)->line && item->is_stmt)) | |
f8eba3c6 TT |
3434 | *best_item = item; |
3435 | ||
3436 | break; | |
3437 | } | |
3438 | ||
5b607461 | 3439 | result.push_back (symtab->linetable ()->item[idx].pc); |
f8eba3c6 TT |
3440 | start = idx + 1; |
3441 | } | |
3442 | ||
3443 | return result; | |
3444 | } | |
3445 | ||
c906108c SS |
3446 | \f |
3447 | /* Set the PC value for a given source file and line number and return true. | |
ececd218 | 3448 | Returns false for invalid line number (and sets the PC to 0). |
c906108c SS |
3449 | The source file is specified with a struct symtab. */ |
3450 | ||
ececd218 | 3451 | bool |
fba45db2 | 3452 | find_line_pc (struct symtab *symtab, int line, CORE_ADDR *pc) |
c906108c SS |
3453 | { |
3454 | struct linetable *l; | |
3455 | int ind; | |
3456 | ||
3457 | *pc = 0; | |
3458 | if (symtab == 0) | |
ececd218 | 3459 | return false; |
c906108c SS |
3460 | |
3461 | symtab = find_line_symtab (symtab, line, &ind, NULL); | |
3462 | if (symtab != NULL) | |
3463 | { | |
5b607461 | 3464 | l = symtab->linetable (); |
c906108c | 3465 | *pc = l->item[ind].pc; |
ececd218 | 3466 | return true; |
c906108c SS |
3467 | } |
3468 | else | |
ececd218 | 3469 | return false; |
c906108c SS |
3470 | } |
3471 | ||
3472 | /* Find the range of pc values in a line. | |
3473 | Store the starting pc of the line into *STARTPTR | |
3474 | and the ending pc (start of next line) into *ENDPTR. | |
ececd218 CB |
3475 | Returns true to indicate success. |
3476 | Returns false if could not find the specified line. */ | |
c906108c | 3477 | |
ececd218 | 3478 | bool |
fba45db2 KB |
3479 | find_line_pc_range (struct symtab_and_line sal, CORE_ADDR *startptr, |
3480 | CORE_ADDR *endptr) | |
c906108c SS |
3481 | { |
3482 | CORE_ADDR startaddr; | |
3483 | struct symtab_and_line found_sal; | |
3484 | ||
3485 | startaddr = sal.pc; | |
c5aa993b | 3486 | if (startaddr == 0 && !find_line_pc (sal.symtab, sal.line, &startaddr)) |
ececd218 | 3487 | return false; |
c906108c SS |
3488 | |
3489 | /* This whole function is based on address. For example, if line 10 has | |
3490 | two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then | |
3491 | "info line *0x123" should say the line goes from 0x100 to 0x200 | |
3492 | and "info line *0x355" should say the line goes from 0x300 to 0x400. | |
3493 | This also insures that we never give a range like "starts at 0x134 | |
3494 | and ends at 0x12c". */ | |
3495 | ||
3496 | found_sal = find_pc_sect_line (startaddr, sal.section, 0); | |
3497 | if (found_sal.line != sal.line) | |
3498 | { | |
3499 | /* The specified line (sal) has zero bytes. */ | |
3500 | *startptr = found_sal.pc; | |
3501 | *endptr = found_sal.pc; | |
3502 | } | |
3503 | else | |
3504 | { | |
3505 | *startptr = found_sal.pc; | |
3506 | *endptr = found_sal.end; | |
3507 | } | |
ececd218 | 3508 | return true; |
c906108c SS |
3509 | } |
3510 | ||
3511 | /* Given a line table and a line number, return the index into the line | |
3512 | table for the pc of the nearest line whose number is >= the specified one. | |
3513 | Return -1 if none is found. The value is >= 0 if it is an index. | |
f8eba3c6 | 3514 | START is the index at which to start searching the line table. |
c906108c SS |
3515 | |
3516 | Set *EXACT_MATCH nonzero if the value returned is an exact match. */ | |
3517 | ||
3518 | static int | |
aa1ee363 | 3519 | find_line_common (struct linetable *l, int lineno, |
f8eba3c6 | 3520 | int *exact_match, int start) |
c906108c | 3521 | { |
52f0bd74 AC |
3522 | int i; |
3523 | int len; | |
c906108c SS |
3524 | |
3525 | /* BEST is the smallest linenumber > LINENO so far seen, | |
3526 | or 0 if none has been seen so far. | |
3527 | BEST_INDEX identifies the item for it. */ | |
3528 | ||
3529 | int best_index = -1; | |
3530 | int best = 0; | |
3531 | ||
b7589f7d DJ |
3532 | *exact_match = 0; |
3533 | ||
c906108c SS |
3534 | if (lineno <= 0) |
3535 | return -1; | |
3536 | if (l == 0) | |
3537 | return -1; | |
3538 | ||
3539 | len = l->nitems; | |
f8eba3c6 | 3540 | for (i = start; i < len; i++) |
c906108c | 3541 | { |
aa1ee363 | 3542 | struct linetable_entry *item = &(l->item[i]); |
c906108c | 3543 | |
8c95582d AB |
3544 | /* Ignore non-statements. */ |
3545 | if (!item->is_stmt) | |
3546 | continue; | |
3547 | ||
c906108c SS |
3548 | if (item->line == lineno) |
3549 | { | |
3550 | /* Return the first (lowest address) entry which matches. */ | |
3551 | *exact_match = 1; | |
3552 | return i; | |
3553 | } | |
3554 | ||
3555 | if (item->line > lineno && (best == 0 || item->line < best)) | |
3556 | { | |
3557 | best = item->line; | |
3558 | best_index = i; | |
3559 | } | |
3560 | } | |
3561 | ||
3562 | /* If we got here, we didn't get an exact match. */ | |
c906108c SS |
3563 | return best_index; |
3564 | } | |
3565 | ||
ececd218 | 3566 | bool |
fba45db2 | 3567 | find_pc_line_pc_range (CORE_ADDR pc, CORE_ADDR *startptr, CORE_ADDR *endptr) |
c906108c SS |
3568 | { |
3569 | struct symtab_and_line sal; | |
433759f7 | 3570 | |
c906108c SS |
3571 | sal = find_pc_line (pc, 0); |
3572 | *startptr = sal.pc; | |
3573 | *endptr = sal.end; | |
3574 | return sal.symtab != 0; | |
3575 | } | |
3576 | ||
cd2bb709 PA |
3577 | /* Helper for find_function_start_sal. Does most of the work, except |
3578 | setting the sal's symbol. */ | |
aab2f208 | 3579 | |
cd2bb709 PA |
3580 | static symtab_and_line |
3581 | find_function_start_sal_1 (CORE_ADDR func_addr, obj_section *section, | |
3582 | bool funfirstline) | |
aab2f208 | 3583 | { |
42ddae10 | 3584 | symtab_and_line sal = find_pc_sect_line (func_addr, section, 0); |
aab2f208 | 3585 | |
6e22494e | 3586 | if (funfirstline && sal.symtab != NULL |
c6159652 | 3587 | && (sal.symtab->compunit ()->locations_valid () |
1ee2e9f9 | 3588 | || sal.symtab->language () == language_asm)) |
6e22494e | 3589 | { |
3c86fae3 | 3590 | struct gdbarch *gdbarch = sal.symtab->compunit ()->objfile ()->arch (); |
141c5cc4 | 3591 | |
42ddae10 | 3592 | sal.pc = func_addr; |
141c5cc4 JK |
3593 | if (gdbarch_skip_entrypoint_p (gdbarch)) |
3594 | sal.pc = gdbarch_skip_entrypoint (gdbarch, sal.pc); | |
6e22494e JK |
3595 | return sal; |
3596 | } | |
3597 | ||
aab2f208 | 3598 | /* We always should have a line for the function start address. |
42ddae10 | 3599 | If we don't, something is odd. Create a plain SAL referring |
aab2f208 DE |
3600 | just the PC and hope that skip_prologue_sal (if requested) |
3601 | can find a line number for after the prologue. */ | |
42ddae10 | 3602 | if (sal.pc < func_addr) |
aab2f208 | 3603 | { |
51abb421 | 3604 | sal = {}; |
aab2f208 | 3605 | sal.pspace = current_program_space; |
42ddae10 | 3606 | sal.pc = func_addr; |
08be3fe3 | 3607 | sal.section = section; |
aab2f208 DE |
3608 | } |
3609 | ||
3610 | if (funfirstline) | |
3611 | skip_prologue_sal (&sal); | |
3612 | ||
3613 | return sal; | |
3614 | } | |
3615 | ||
42ddae10 PA |
3616 | /* See symtab.h. */ |
3617 | ||
cd2bb709 PA |
3618 | symtab_and_line |
3619 | find_function_start_sal (CORE_ADDR func_addr, obj_section *section, | |
3620 | bool funfirstline) | |
3621 | { | |
3622 | symtab_and_line sal | |
3623 | = find_function_start_sal_1 (func_addr, section, funfirstline); | |
3624 | ||
3625 | /* find_function_start_sal_1 does a linetable search, so it finds | |
3626 | the symtab and linenumber, but not a symbol. Fill in the | |
3627 | function symbol too. */ | |
3628 | sal.symbol = find_pc_sect_containing_function (sal.pc, sal.section); | |
3629 | ||
3630 | return sal; | |
3631 | } | |
3632 | ||
3633 | /* See symtab.h. */ | |
3634 | ||
42ddae10 PA |
3635 | symtab_and_line |
3636 | find_function_start_sal (symbol *sym, bool funfirstline) | |
3637 | { | |
42ddae10 | 3638 | symtab_and_line sal |
6395b628 | 3639 | = find_function_start_sal_1 (sym->value_block ()->entry_pc (), |
e19b2d94 | 3640 | sym->obj_section (sym->objfile ()), |
cd2bb709 | 3641 | funfirstline); |
42ddae10 PA |
3642 | sal.symbol = sym; |
3643 | return sal; | |
3644 | } | |
3645 | ||
3646 | ||
8c7a1ee8 EZ |
3647 | /* Given a function start address FUNC_ADDR and SYMTAB, find the first |
3648 | address for that function that has an entry in SYMTAB's line info | |
3649 | table. If such an entry cannot be found, return FUNC_ADDR | |
3650 | unaltered. */ | |
eca864fe | 3651 | |
70221824 | 3652 | static CORE_ADDR |
8c7a1ee8 EZ |
3653 | skip_prologue_using_lineinfo (CORE_ADDR func_addr, struct symtab *symtab) |
3654 | { | |
3655 | CORE_ADDR func_start, func_end; | |
3656 | struct linetable *l; | |
952a6d41 | 3657 | int i; |
8c7a1ee8 EZ |
3658 | |
3659 | /* Give up if this symbol has no lineinfo table. */ | |
5b607461 | 3660 | l = symtab->linetable (); |
8c7a1ee8 EZ |
3661 | if (l == NULL) |
3662 | return func_addr; | |
3663 | ||
3664 | /* Get the range for the function's PC values, or give up if we | |
3665 | cannot, for some reason. */ | |
3666 | if (!find_pc_partial_function (func_addr, NULL, &func_start, &func_end)) | |
3667 | return func_addr; | |
3668 | ||
3669 | /* Linetable entries are ordered by PC values, see the commentary in | |
3670 | symtab.h where `struct linetable' is defined. Thus, the first | |
3671 | entry whose PC is in the range [FUNC_START..FUNC_END[ is the | |
3672 | address we are looking for. */ | |
3673 | for (i = 0; i < l->nitems; i++) | |
3674 | { | |
3675 | struct linetable_entry *item = &(l->item[i]); | |
3676 | ||
3677 | /* Don't use line numbers of zero, they mark special entries in | |
3678 | the table. See the commentary on symtab.h before the | |
3679 | definition of struct linetable. */ | |
3680 | if (item->line > 0 && func_start <= item->pc && item->pc < func_end) | |
3681 | return item->pc; | |
3682 | } | |
3683 | ||
3684 | return func_addr; | |
3685 | } | |
3686 | ||
cc96ae7f LS |
3687 | /* Try to locate the address where a breakpoint should be placed past the |
3688 | prologue of function starting at FUNC_ADDR using the line table. | |
3689 | ||
3690 | Return the address associated with the first entry in the line-table for | |
3691 | the function starting at FUNC_ADDR which has prologue_end set to true if | |
3692 | such entry exist, otherwise return an empty optional. */ | |
3693 | ||
3694 | static gdb::optional<CORE_ADDR> | |
3695 | skip_prologue_using_linetable (CORE_ADDR func_addr) | |
3696 | { | |
3697 | CORE_ADDR start_pc, end_pc; | |
3698 | ||
3699 | if (!find_pc_partial_function (func_addr, nullptr, &start_pc, &end_pc)) | |
3700 | return {}; | |
3701 | ||
3702 | const struct symtab_and_line prologue_sal = find_pc_line (start_pc, 0); | |
3703 | if (prologue_sal.symtab != nullptr | |
3704 | && prologue_sal.symtab->language () != language_asm) | |
3705 | { | |
3706 | struct linetable *linetable = prologue_sal.symtab->linetable (); | |
3707 | ||
3708 | auto it = std::lower_bound | |
3709 | (linetable->item, linetable->item + linetable->nitems, start_pc, | |
3710 | [] (const linetable_entry <e, CORE_ADDR pc) -> bool | |
3711 | { | |
3712 | return lte.pc < pc; | |
3713 | }); | |
3714 | ||
3715 | for (; | |
3716 | it < linetable->item + linetable->nitems && it->pc <= end_pc; | |
3717 | it++) | |
3718 | if (it->prologue_end) | |
3719 | return {it->pc}; | |
3720 | } | |
3721 | ||
3722 | return {}; | |
3723 | } | |
3724 | ||
059acae7 UW |
3725 | /* Adjust SAL to the first instruction past the function prologue. |
3726 | If the PC was explicitly specified, the SAL is not changed. | |
5b0e2db4 AB |
3727 | If the line number was explicitly specified then the SAL can still be |
3728 | updated, unless the language for SAL is assembler, in which case the SAL | |
3729 | will be left unchanged. | |
3730 | If SAL is already past the prologue, then do nothing. */ | |
eca864fe | 3731 | |
059acae7 UW |
3732 | void |
3733 | skip_prologue_sal (struct symtab_and_line *sal) | |
3734 | { | |
3735 | struct symbol *sym; | |
3736 | struct symtab_and_line start_sal; | |
8be455d7 | 3737 | CORE_ADDR pc, saved_pc; |
059acae7 UW |
3738 | struct obj_section *section; |
3739 | const char *name; | |
3740 | struct objfile *objfile; | |
3741 | struct gdbarch *gdbarch; | |
3977b71f | 3742 | const struct block *b, *function_block; |
8be455d7 | 3743 | int force_skip, skip; |
c906108c | 3744 | |
a4b411d6 | 3745 | /* Do not change the SAL if PC was specified explicitly. */ |
059acae7 UW |
3746 | if (sal->explicit_pc) |
3747 | return; | |
6c95b8df | 3748 | |
5b0e2db4 AB |
3749 | /* In assembly code, if the user asks for a specific line then we should |
3750 | not adjust the SAL. The user already has instruction level | |
3751 | visibility in this case, so selecting a line other than one requested | |
3752 | is likely to be the wrong choice. */ | |
3753 | if (sal->symtab != nullptr | |
3754 | && sal->explicit_line | |
1ee2e9f9 | 3755 | && sal->symtab->language () == language_asm) |
5b0e2db4 AB |
3756 | return; |
3757 | ||
5ed8105e PA |
3758 | scoped_restore_current_pspace_and_thread restore_pspace_thread; |
3759 | ||
059acae7 | 3760 | switch_to_program_space_and_thread (sal->pspace); |
6c95b8df | 3761 | |
059acae7 UW |
3762 | sym = find_pc_sect_function (sal->pc, sal->section); |
3763 | if (sym != NULL) | |
bccdca4a | 3764 | { |
e19b2d94 | 3765 | objfile = sym->objfile (); |
6395b628 | 3766 | pc = sym->value_block ()->entry_pc (); |
ebbc3a7d | 3767 | section = sym->obj_section (objfile); |
987012b8 | 3768 | name = sym->linkage_name (); |
c906108c | 3769 | } |
059acae7 UW |
3770 | else |
3771 | { | |
7c7b6655 | 3772 | struct bound_minimal_symbol msymbol |
dda83cd7 | 3773 | = lookup_minimal_symbol_by_pc_section (sal->pc, sal->section); |
433759f7 | 3774 | |
7c7b6655 | 3775 | if (msymbol.minsym == NULL) |
5ed8105e | 3776 | return; |
059acae7 | 3777 | |
7c7b6655 | 3778 | objfile = msymbol.objfile; |
4aeddc50 | 3779 | pc = msymbol.value_address (); |
ebbc3a7d | 3780 | section = msymbol.minsym->obj_section (objfile); |
c9d95fa3 | 3781 | name = msymbol.minsym->linkage_name (); |
059acae7 UW |
3782 | } |
3783 | ||
08feed99 | 3784 | gdbarch = objfile->arch (); |
059acae7 | 3785 | |
8be455d7 JK |
3786 | /* Process the prologue in two passes. In the first pass try to skip the |
3787 | prologue (SKIP is true) and verify there is a real need for it (indicated | |
3788 | by FORCE_SKIP). If no such reason was found run a second pass where the | |
3789 | prologue is not skipped (SKIP is false). */ | |
059acae7 | 3790 | |
8be455d7 JK |
3791 | skip = 1; |
3792 | force_skip = 1; | |
059acae7 | 3793 | |
8be455d7 JK |
3794 | /* Be conservative - allow direct PC (without skipping prologue) only if we |
3795 | have proven the CU (Compilation Unit) supports it. sal->SYMTAB does not | |
3796 | have to be set by the caller so we use SYM instead. */ | |
08be3fe3 | 3797 | if (sym != NULL |
4206d69e | 3798 | && sym->symtab ()->compunit ()->locations_valid ()) |
8be455d7 | 3799 | force_skip = 0; |
059acae7 | 3800 | |
8be455d7 JK |
3801 | saved_pc = pc; |
3802 | do | |
c906108c | 3803 | { |
8be455d7 | 3804 | pc = saved_pc; |
4309257c | 3805 | |
cc96ae7f LS |
3806 | /* Check if the compiler explicitly indicated where a breakpoint should |
3807 | be placed to skip the prologue. */ | |
6109f7a3 | 3808 | if (!ignore_prologue_end_flag && skip) |
cc96ae7f LS |
3809 | { |
3810 | gdb::optional<CORE_ADDR> linetable_pc | |
3811 | = skip_prologue_using_linetable (pc); | |
3812 | if (linetable_pc) | |
3813 | { | |
3814 | pc = *linetable_pc; | |
3815 | start_sal = find_pc_sect_line (pc, section, 0); | |
3816 | force_skip = 1; | |
3817 | continue; | |
3818 | } | |
3819 | } | |
3820 | ||
8be455d7 JK |
3821 | /* If the function is in an unmapped overlay, use its unmapped LMA address, |
3822 | so that gdbarch_skip_prologue has something unique to work on. */ | |
3823 | if (section_is_overlay (section) && !section_is_mapped (section)) | |
3824 | pc = overlay_unmapped_address (pc, section); | |
3825 | ||
3826 | /* Skip "first line" of function (which is actually its prologue). */ | |
3827 | pc += gdbarch_deprecated_function_start_offset (gdbarch); | |
591a12a1 | 3828 | if (gdbarch_skip_entrypoint_p (gdbarch)) |
dda83cd7 | 3829 | pc = gdbarch_skip_entrypoint (gdbarch, pc); |
8be455d7 | 3830 | if (skip) |
46a62268 | 3831 | pc = gdbarch_skip_prologue_noexcept (gdbarch, pc); |
8be455d7 JK |
3832 | |
3833 | /* For overlays, map pc back into its mapped VMA range. */ | |
3834 | pc = overlay_mapped_address (pc, section); | |
3835 | ||
3836 | /* Calculate line number. */ | |
059acae7 | 3837 | start_sal = find_pc_sect_line (pc, section, 0); |
8be455d7 JK |
3838 | |
3839 | /* Check if gdbarch_skip_prologue left us in mid-line, and the next | |
3840 | line is still part of the same function. */ | |
3841 | if (skip && start_sal.pc != pc | |
6395b628 | 3842 | && (sym ? (sym->value_block ()->entry_pc () <= start_sal.end |
4b8791e1 | 3843 | && start_sal.end < sym->value_block()->end ()) |
7cbd4a93 TT |
3844 | : (lookup_minimal_symbol_by_pc_section (start_sal.end, section).minsym |
3845 | == lookup_minimal_symbol_by_pc_section (pc, section).minsym))) | |
8be455d7 JK |
3846 | { |
3847 | /* First pc of next line */ | |
3848 | pc = start_sal.end; | |
3849 | /* Recalculate the line number (might not be N+1). */ | |
3850 | start_sal = find_pc_sect_line (pc, section, 0); | |
3851 | } | |
3852 | ||
3853 | /* On targets with executable formats that don't have a concept of | |
3854 | constructors (ELF with .init has, PE doesn't), gcc emits a call | |
3855 | to `__main' in `main' between the prologue and before user | |
3856 | code. */ | |
3857 | if (gdbarch_skip_main_prologue_p (gdbarch) | |
7ccffd7c | 3858 | && name && strcmp_iw (name, "main") == 0) |
8be455d7 JK |
3859 | { |
3860 | pc = gdbarch_skip_main_prologue (gdbarch, pc); | |
3861 | /* Recalculate the line number (might not be N+1). */ | |
3862 | start_sal = find_pc_sect_line (pc, section, 0); | |
3863 | force_skip = 1; | |
3864 | } | |
4309257c | 3865 | } |
8be455d7 | 3866 | while (!force_skip && skip--); |
4309257c | 3867 | |
8c7a1ee8 EZ |
3868 | /* If we still don't have a valid source line, try to find the first |
3869 | PC in the lineinfo table that belongs to the same function. This | |
3870 | happens with COFF debug info, which does not seem to have an | |
3871 | entry in lineinfo table for the code after the prologue which has | |
3872 | no direct relation to source. For example, this was found to be | |
3873 | the case with the DJGPP target using "gcc -gcoff" when the | |
3874 | compiler inserted code after the prologue to make sure the stack | |
3875 | is aligned. */ | |
8be455d7 | 3876 | if (!force_skip && sym && start_sal.symtab == NULL) |
8c7a1ee8 | 3877 | { |
4206d69e | 3878 | pc = skip_prologue_using_lineinfo (pc, sym->symtab ()); |
8c7a1ee8 | 3879 | /* Recalculate the line number. */ |
059acae7 | 3880 | start_sal = find_pc_sect_line (pc, section, 0); |
8c7a1ee8 EZ |
3881 | } |
3882 | ||
059acae7 UW |
3883 | /* If we're already past the prologue, leave SAL unchanged. Otherwise |
3884 | forward SAL to the end of the prologue. */ | |
3885 | if (sal->pc >= pc) | |
3886 | return; | |
3887 | ||
3888 | sal->pc = pc; | |
3889 | sal->section = section; | |
059acae7 UW |
3890 | sal->symtab = start_sal.symtab; |
3891 | sal->line = start_sal.line; | |
3892 | sal->end = start_sal.end; | |
c906108c | 3893 | |
edb3359d DJ |
3894 | /* Check if we are now inside an inlined function. If we can, |
3895 | use the call site of the function instead. */ | |
059acae7 | 3896 | b = block_for_pc_sect (sal->pc, sal->section); |
edb3359d DJ |
3897 | function_block = NULL; |
3898 | while (b != NULL) | |
3899 | { | |
a4dfe747 | 3900 | if (b->function () != NULL && b->inlined_p ()) |
edb3359d | 3901 | function_block = b; |
6c00f721 | 3902 | else if (b->function () != NULL) |
edb3359d | 3903 | break; |
f135fe72 | 3904 | b = b->superblock (); |
edb3359d DJ |
3905 | } |
3906 | if (function_block != NULL | |
6c00f721 | 3907 | && function_block->function ()->line () != 0) |
edb3359d | 3908 | { |
6c00f721 SM |
3909 | sal->line = function_block->function ()->line (); |
3910 | sal->symtab = function_block->function ()->symtab (); | |
edb3359d | 3911 | } |
c906108c | 3912 | } |
50641945 | 3913 | |
f1f58506 DE |
3914 | /* Given PC at the function's start address, attempt to find the |
3915 | prologue end using SAL information. Return zero if the skip fails. | |
3916 | ||
3917 | A non-optimized prologue traditionally has one SAL for the function | |
3918 | and a second for the function body. A single line function has | |
3919 | them both pointing at the same line. | |
3920 | ||
3921 | An optimized prologue is similar but the prologue may contain | |
3922 | instructions (SALs) from the instruction body. Need to skip those | |
3923 | while not getting into the function body. | |
3924 | ||
3925 | The functions end point and an increasing SAL line are used as | |
3926 | indicators of the prologue's endpoint. | |
3927 | ||
3928 | This code is based on the function refine_prologue_limit | |
3929 | (found in ia64). */ | |
3930 | ||
3931 | CORE_ADDR | |
3932 | skip_prologue_using_sal (struct gdbarch *gdbarch, CORE_ADDR func_addr) | |
3933 | { | |
3934 | struct symtab_and_line prologue_sal; | |
3935 | CORE_ADDR start_pc; | |
3936 | CORE_ADDR end_pc; | |
3937 | const struct block *bl; | |
3938 | ||
3939 | /* Get an initial range for the function. */ | |
3940 | find_pc_partial_function (func_addr, NULL, &start_pc, &end_pc); | |
3941 | start_pc += gdbarch_deprecated_function_start_offset (gdbarch); | |
3942 | ||
3943 | prologue_sal = find_pc_line (start_pc, 0); | |
3944 | if (prologue_sal.line != 0) | |
3945 | { | |
3946 | /* For languages other than assembly, treat two consecutive line | |
3947 | entries at the same address as a zero-instruction prologue. | |
3948 | The GNU assembler emits separate line notes for each instruction | |
3949 | in a multi-instruction macro, but compilers generally will not | |
3950 | do this. */ | |
1ee2e9f9 | 3951 | if (prologue_sal.symtab->language () != language_asm) |
f1f58506 | 3952 | { |
5b607461 | 3953 | struct linetable *linetable = prologue_sal.symtab->linetable (); |
f1f58506 DE |
3954 | int idx = 0; |
3955 | ||
3956 | /* Skip any earlier lines, and any end-of-sequence marker | |
3957 | from a previous function. */ | |
3958 | while (linetable->item[idx].pc != prologue_sal.pc | |
3959 | || linetable->item[idx].line == 0) | |
3960 | idx++; | |
3961 | ||
3962 | if (idx+1 < linetable->nitems | |
3963 | && linetable->item[idx+1].line != 0 | |
3964 | && linetable->item[idx+1].pc == start_pc) | |
3965 | return start_pc; | |
3966 | } | |
3967 | ||
3968 | /* If there is only one sal that covers the entire function, | |
3969 | then it is probably a single line function, like | |
3970 | "foo(){}". */ | |
3971 | if (prologue_sal.end >= end_pc) | |
3972 | return 0; | |
3973 | ||
3974 | while (prologue_sal.end < end_pc) | |
3975 | { | |
3976 | struct symtab_and_line sal; | |
3977 | ||
3978 | sal = find_pc_line (prologue_sal.end, 0); | |
3979 | if (sal.line == 0) | |
3980 | break; | |
3981 | /* Assume that a consecutive SAL for the same (or larger) | |
3982 | line mark the prologue -> body transition. */ | |
3983 | if (sal.line >= prologue_sal.line) | |
3984 | break; | |
3985 | /* Likewise if we are in a different symtab altogether | |
3986 | (e.g. within a file included via #include). */ | |
3987 | if (sal.symtab != prologue_sal.symtab) | |
3988 | break; | |
3989 | ||
3990 | /* The line number is smaller. Check that it's from the | |
3991 | same function, not something inlined. If it's inlined, | |
3992 | then there is no point comparing the line numbers. */ | |
3993 | bl = block_for_pc (prologue_sal.end); | |
3994 | while (bl) | |
3995 | { | |
a4dfe747 | 3996 | if (bl->inlined_p ()) |
f1f58506 | 3997 | break; |
6c00f721 | 3998 | if (bl->function ()) |
f1f58506 DE |
3999 | { |
4000 | bl = NULL; | |
4001 | break; | |
4002 | } | |
f135fe72 | 4003 | bl = bl->superblock (); |
f1f58506 DE |
4004 | } |
4005 | if (bl != NULL) | |
4006 | break; | |
4007 | ||
4008 | /* The case in which compiler's optimizer/scheduler has | |
4009 | moved instructions into the prologue. We look ahead in | |
4010 | the function looking for address ranges whose | |
4011 | corresponding line number is less the first one that we | |
4012 | found for the function. This is more conservative then | |
4013 | refine_prologue_limit which scans a large number of SALs | |
4014 | looking for any in the prologue. */ | |
4015 | prologue_sal = sal; | |
4016 | } | |
4017 | } | |
4018 | ||
4019 | if (prologue_sal.end < end_pc) | |
4020 | /* Return the end of this line, or zero if we could not find a | |
4021 | line. */ | |
4022 | return prologue_sal.end; | |
4023 | else | |
4024 | /* Don't return END_PC, which is past the end of the function. */ | |
4025 | return prologue_sal.pc; | |
4026 | } | |
bf223d3e PA |
4027 | |
4028 | /* See symtab.h. */ | |
4029 | ||
4030 | symbol * | |
4031 | find_function_alias_target (bound_minimal_symbol msymbol) | |
4032 | { | |
4024cf2b PA |
4033 | CORE_ADDR func_addr; |
4034 | if (!msymbol_is_function (msymbol.objfile, msymbol.minsym, &func_addr)) | |
bf223d3e PA |
4035 | return NULL; |
4036 | ||
4024cf2b | 4037 | symbol *sym = find_pc_function (func_addr); |
bf223d3e | 4038 | if (sym != NULL |
66d7f48f | 4039 | && sym->aclass () == LOC_BLOCK |
6395b628 | 4040 | && sym->value_block ()->entry_pc () == func_addr) |
bf223d3e PA |
4041 | return sym; |
4042 | ||
4043 | return NULL; | |
4044 | } | |
4045 | ||
f1f58506 | 4046 | \f |
c906108c SS |
4047 | /* If P is of the form "operator[ \t]+..." where `...' is |
4048 | some legitimate operator text, return a pointer to the | |
4049 | beginning of the substring of the operator text. | |
4050 | Otherwise, return "". */ | |
eca864fe | 4051 | |
96142726 TT |
4052 | static const char * |
4053 | operator_chars (const char *p, const char **end) | |
c906108c SS |
4054 | { |
4055 | *end = ""; | |
8090b426 | 4056 | if (!startswith (p, CP_OPERATOR_STR)) |
c906108c | 4057 | return *end; |
8090b426 | 4058 | p += CP_OPERATOR_LEN; |
c906108c SS |
4059 | |
4060 | /* Don't get faked out by `operator' being part of a longer | |
4061 | identifier. */ | |
c5aa993b | 4062 | if (isalpha (*p) || *p == '_' || *p == '$' || *p == '\0') |
c906108c SS |
4063 | return *end; |
4064 | ||
4065 | /* Allow some whitespace between `operator' and the operator symbol. */ | |
4066 | while (*p == ' ' || *p == '\t') | |
4067 | p++; | |
4068 | ||
c378eb4e | 4069 | /* Recognize 'operator TYPENAME'. */ |
c906108c | 4070 | |
c5aa993b | 4071 | if (isalpha (*p) || *p == '_' || *p == '$') |
c906108c | 4072 | { |
96142726 | 4073 | const char *q = p + 1; |
433759f7 | 4074 | |
c5aa993b | 4075 | while (isalnum (*q) || *q == '_' || *q == '$') |
c906108c SS |
4076 | q++; |
4077 | *end = q; | |
4078 | return p; | |
4079 | } | |
4080 | ||
53e8ad3d MS |
4081 | while (*p) |
4082 | switch (*p) | |
4083 | { | |
4084 | case '\\': /* regexp quoting */ | |
4085 | if (p[1] == '*') | |
4086 | { | |
3e43a32a | 4087 | if (p[2] == '=') /* 'operator\*=' */ |
53e8ad3d MS |
4088 | *end = p + 3; |
4089 | else /* 'operator\*' */ | |
4090 | *end = p + 2; | |
4091 | return p; | |
4092 | } | |
4093 | else if (p[1] == '[') | |
4094 | { | |
4095 | if (p[2] == ']') | |
3e43a32a MS |
4096 | error (_("mismatched quoting on brackets, " |
4097 | "try 'operator\\[\\]'")); | |
53e8ad3d MS |
4098 | else if (p[2] == '\\' && p[3] == ']') |
4099 | { | |
4100 | *end = p + 4; /* 'operator\[\]' */ | |
4101 | return p; | |
4102 | } | |
4103 | else | |
8a3fe4f8 | 4104 | error (_("nothing is allowed between '[' and ']'")); |
53e8ad3d | 4105 | } |
9af17804 | 4106 | else |
53e8ad3d | 4107 | { |
85102364 | 4108 | /* Gratuitous quote: skip it and move on. */ |
53e8ad3d MS |
4109 | p++; |
4110 | continue; | |
4111 | } | |
4112 | break; | |
4113 | case '!': | |
4114 | case '=': | |
4115 | case '*': | |
4116 | case '/': | |
4117 | case '%': | |
4118 | case '^': | |
4119 | if (p[1] == '=') | |
4120 | *end = p + 2; | |
4121 | else | |
4122 | *end = p + 1; | |
4123 | return p; | |
4124 | case '<': | |
4125 | case '>': | |
4126 | case '+': | |
4127 | case '-': | |
4128 | case '&': | |
4129 | case '|': | |
4130 | if (p[0] == '-' && p[1] == '>') | |
4131 | { | |
c378eb4e | 4132 | /* Struct pointer member operator 'operator->'. */ |
53e8ad3d MS |
4133 | if (p[2] == '*') |
4134 | { | |
4135 | *end = p + 3; /* 'operator->*' */ | |
4136 | return p; | |
4137 | } | |
4138 | else if (p[2] == '\\') | |
4139 | { | |
4140 | *end = p + 4; /* Hopefully 'operator->\*' */ | |
4141 | return p; | |
4142 | } | |
4143 | else | |
4144 | { | |
4145 | *end = p + 2; /* 'operator->' */ | |
4146 | return p; | |
4147 | } | |
4148 | } | |
4149 | if (p[1] == '=' || p[1] == p[0]) | |
4150 | *end = p + 2; | |
4151 | else | |
4152 | *end = p + 1; | |
4153 | return p; | |
4154 | case '~': | |
4155 | case ',': | |
c5aa993b | 4156 | *end = p + 1; |
53e8ad3d MS |
4157 | return p; |
4158 | case '(': | |
4159 | if (p[1] != ')') | |
3e43a32a MS |
4160 | error (_("`operator ()' must be specified " |
4161 | "without whitespace in `()'")); | |
c5aa993b | 4162 | *end = p + 2; |
53e8ad3d MS |
4163 | return p; |
4164 | case '?': | |
4165 | if (p[1] != ':') | |
3e43a32a MS |
4166 | error (_("`operator ?:' must be specified " |
4167 | "without whitespace in `?:'")); | |
53e8ad3d MS |
4168 | *end = p + 2; |
4169 | return p; | |
4170 | case '[': | |
4171 | if (p[1] != ']') | |
3e43a32a MS |
4172 | error (_("`operator []' must be specified " |
4173 | "without whitespace in `[]'")); | |
53e8ad3d MS |
4174 | *end = p + 2; |
4175 | return p; | |
4176 | default: | |
8a3fe4f8 | 4177 | error (_("`operator %s' not supported"), p); |
53e8ad3d MS |
4178 | break; |
4179 | } | |
4180 | ||
c906108c SS |
4181 | *end = ""; |
4182 | return *end; | |
4183 | } | |
c906108c | 4184 | \f |
c5aa993b | 4185 | |
4a0788e0 | 4186 | /* See class declaration. */ |
9fdc877b | 4187 | |
4a0788e0 AB |
4188 | info_sources_filter::info_sources_filter (match_on match_type, |
4189 | const char *regexp) | |
4190 | : m_match_type (match_type), | |
4191 | m_regexp (regexp) | |
9fdc877b | 4192 | { |
4a0788e0 AB |
4193 | /* Setup the compiled regular expression M_C_REGEXP based on M_REGEXP. */ |
4194 | if (m_regexp != nullptr && *m_regexp != '\0') | |
4195 | { | |
4196 | gdb_assert (m_regexp != nullptr); | |
28cd9371 | 4197 | |
4a0788e0 AB |
4198 | int cflags = REG_NOSUB; |
4199 | #ifdef HAVE_CASE_INSENSITIVE_FILE_SYSTEM | |
4200 | cflags |= REG_ICASE; | |
4201 | #endif | |
4202 | m_c_regexp.emplace (m_regexp, cflags, _("Invalid regexp")); | |
4203 | } | |
4204 | } | |
28cd9371 | 4205 | |
4a0788e0 | 4206 | /* See class declaration. */ |
9fdc877b | 4207 | |
4a0788e0 AB |
4208 | bool |
4209 | info_sources_filter::matches (const char *fullname) const | |
4210 | { | |
4211 | /* Does it match regexp? */ | |
4212 | if (m_c_regexp.has_value ()) | |
4213 | { | |
4214 | const char *to_match; | |
4215 | std::string dirname; | |
4216 | ||
4217 | switch (m_match_type) | |
4218 | { | |
4219 | case match_on::DIRNAME: | |
4220 | dirname = ldirname (fullname); | |
4221 | to_match = dirname.c_str (); | |
4222 | break; | |
4223 | case match_on::BASENAME: | |
4224 | to_match = lbasename (fullname); | |
4225 | break; | |
4226 | case match_on::FULLNAME: | |
4227 | to_match = fullname; | |
4228 | break; | |
b6aeb717 TT |
4229 | default: |
4230 | gdb_assert_not_reached ("bad m_match_type"); | |
4a0788e0 AB |
4231 | } |
4232 | ||
4233 | if (m_c_regexp->exec (to_match, 0, NULL, 0) != 0) | |
4234 | return false; | |
4235 | } | |
4236 | ||
4237 | return true; | |
4238 | } | |
4239 | ||
4a0788e0 AB |
4240 | /* Data structure to maintain the state used for printing the results of |
4241 | the 'info sources' command. */ | |
4242 | ||
4243 | struct output_source_filename_data | |
4244 | { | |
4245 | /* Create an object for displaying the results of the 'info sources' | |
0e350a05 AB |
4246 | command to UIOUT. FILTER must remain valid and unchanged for the |
4247 | lifetime of this object as this object retains a reference to FILTER. */ | |
4248 | output_source_filename_data (struct ui_out *uiout, | |
4249 | const info_sources_filter &filter) | |
4250 | : m_filter (filter), | |
4251 | m_uiout (uiout) | |
4a0788e0 AB |
4252 | { /* Nothing. */ } |
4253 | ||
4254 | DISABLE_COPY_AND_ASSIGN (output_source_filename_data); | |
4255 | ||
4256 | /* Reset enough state of this object so we can match against a new set of | |
4257 | files. The existing regular expression is retained though. */ | |
4258 | void reset_output () | |
4259 | { | |
4260 | m_first = true; | |
4261 | m_filename_seen_cache.clear (); | |
4262 | } | |
4263 | ||
0e350a05 AB |
4264 | /* Worker for sources_info, outputs the file name formatted for either |
4265 | cli or mi (based on the current_uiout). In cli mode displays | |
4266 | FULLNAME with a comma separating this name from any previously | |
4267 | printed name (line breaks are added at the comma). In MI mode | |
4268 | outputs a tuple containing DISP_NAME (the files display name), | |
4269 | FULLNAME, and EXPANDED_P (true when this file is from a fully | |
4270 | expanded symtab, otherwise false). */ | |
4271 | void output (const char *disp_name, const char *fullname, bool expanded_p); | |
eca864fe | 4272 | |
f4655dee TT |
4273 | /* An overload suitable for use as a callback to |
4274 | quick_symbol_functions::map_symbol_filenames. */ | |
4275 | void operator() (const char *filename, const char *fullname) | |
4276 | { | |
0e350a05 AB |
4277 | /* The false here indicates that this file is from an unexpanded |
4278 | symtab. */ | |
4279 | output (filename, fullname, false); | |
f4655dee | 4280 | } |
4a0788e0 | 4281 | |
bd742128 AB |
4282 | /* Return true if at least one filename has been printed (after a call to |
4283 | output) since either this object was created, or the last call to | |
4284 | reset_output. */ | |
4285 | bool printed_filename_p () const | |
4286 | { | |
4287 | return !m_first; | |
4288 | } | |
4289 | ||
4a0788e0 AB |
4290 | private: |
4291 | ||
4292 | /* Flag of whether we're printing the first one. */ | |
4293 | bool m_first = true; | |
4294 | ||
4295 | /* Cache of what we've seen so far. */ | |
4296 | filename_seen_cache m_filename_seen_cache; | |
4297 | ||
4298 | /* How source filename should be filtered. */ | |
4299 | const info_sources_filter &m_filter; | |
0e350a05 AB |
4300 | |
4301 | /* The object to which output is sent. */ | |
4302 | struct ui_out *m_uiout; | |
f4655dee TT |
4303 | }; |
4304 | ||
4a0788e0 AB |
4305 | /* See comment in class declaration above. */ |
4306 | ||
f4655dee | 4307 | void |
0e350a05 AB |
4308 | output_source_filename_data::output (const char *disp_name, |
4309 | const char *fullname, | |
4310 | bool expanded_p) | |
c94fdfd0 EZ |
4311 | { |
4312 | /* Since a single source file can result in several partial symbol | |
4313 | tables, we need to avoid printing it more than once. Note: if | |
4314 | some of the psymtabs are read in and some are not, it gets | |
4315 | printed both under "Source files for which symbols have been | |
4316 | read" and "Source files for which symbols will be read in on | |
4317 | demand". I consider this a reasonable way to deal with the | |
4318 | situation. I'm not sure whether this can also happen for | |
4319 | symtabs; it doesn't hurt to check. */ | |
4320 | ||
4a0788e0 | 4321 | /* Was NAME already seen? If so, then don't print it again. */ |
0e350a05 | 4322 | if (m_filename_seen_cache.seen (fullname)) |
4a0788e0 | 4323 | return; |
28cd9371 | 4324 | |
4a0788e0 | 4325 | /* If the filter rejects this file then don't print it. */ |
0e350a05 | 4326 | if (!m_filter.matches (fullname)) |
4a0788e0 | 4327 | return; |
28cd9371 | 4328 | |
0e350a05 AB |
4329 | ui_out_emit_tuple ui_emitter (m_uiout, nullptr); |
4330 | ||
28cd9371 | 4331 | /* Print it and reset *FIRST. */ |
4a0788e0 | 4332 | if (!m_first) |
0e350a05 | 4333 | m_uiout->text (", "); |
4a0788e0 | 4334 | m_first = false; |
c906108c | 4335 | |
1285ce86 | 4336 | m_uiout->wrap_hint (0); |
0e350a05 AB |
4337 | if (m_uiout->is_mi_like_p ()) |
4338 | { | |
4339 | m_uiout->field_string ("file", disp_name, file_name_style.style ()); | |
4340 | if (fullname != nullptr) | |
4341 | m_uiout->field_string ("fullname", fullname, | |
4342 | file_name_style.style ()); | |
4343 | m_uiout->field_string ("debug-fully-read", | |
4344 | (expanded_p ? "true" : "false")); | |
4345 | } | |
4346 | else | |
4347 | { | |
4348 | if (fullname == nullptr) | |
4349 | fullname = disp_name; | |
4350 | m_uiout->field_string ("fullname", fullname, | |
4351 | file_name_style.style ()); | |
4352 | } | |
c5aa993b | 4353 | } |
c906108c | 4354 | |
4a0788e0 AB |
4355 | /* For the 'info sources' command, what part of the file names should we be |
4356 | matching the user supplied regular expression against? */ | |
4357 | ||
4358 | struct filename_partial_match_opts | |
4359 | { | |
4360 | /* Only match the directory name part. */ | |
4361 | bool dirname = false; | |
4362 | ||
4363 | /* Only match the basename part. */ | |
4364 | bool basename = false; | |
4365 | }; | |
4366 | ||
28cd9371 PW |
4367 | using isrc_flag_option_def |
4368 | = gdb::option::flag_option_def<filename_partial_match_opts>; | |
4369 | ||
4370 | static const gdb::option::option_def info_sources_option_defs[] = { | |
4371 | ||
4372 | isrc_flag_option_def { | |
4373 | "dirname", | |
4374 | [] (filename_partial_match_opts *opts) { return &opts->dirname; }, | |
4375 | N_("Show only the files having a dirname matching REGEXP."), | |
4376 | }, | |
4377 | ||
4378 | isrc_flag_option_def { | |
4379 | "basename", | |
4380 | [] (filename_partial_match_opts *opts) { return &opts->basename; }, | |
4381 | N_("Show only the files having a basename matching REGEXP."), | |
4382 | }, | |
4383 | ||
4384 | }; | |
4385 | ||
4386 | /* Create an option_def_group for the "info sources" options, with | |
4387 | ISRC_OPTS as context. */ | |
4388 | ||
4389 | static inline gdb::option::option_def_group | |
4390 | make_info_sources_options_def_group (filename_partial_match_opts *isrc_opts) | |
4391 | { | |
4392 | return {{info_sources_option_defs}, isrc_opts}; | |
4393 | } | |
4394 | ||
28cd9371 PW |
4395 | /* Completer for "info sources". */ |
4396 | ||
4397 | static void | |
4398 | info_sources_command_completer (cmd_list_element *ignore, | |
4399 | completion_tracker &tracker, | |
4400 | const char *text, const char *word) | |
4401 | { | |
4402 | const auto group = make_info_sources_options_def_group (nullptr); | |
4403 | if (gdb::option::complete_options | |
4404 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
4405 | return; | |
4406 | } | |
4407 | ||
0e350a05 AB |
4408 | /* See symtab.h. */ |
4409 | ||
4410 | void | |
4411 | info_sources_worker (struct ui_out *uiout, | |
1fb1ce02 | 4412 | bool group_by_objfile, |
0e350a05 AB |
4413 | const info_sources_filter &filter) |
4414 | { | |
4415 | output_source_filename_data data (uiout, filter); | |
4416 | ||
4417 | ui_out_emit_list results_emitter (uiout, "files"); | |
4418 | gdb::optional<ui_out_emit_tuple> output_tuple; | |
4419 | gdb::optional<ui_out_emit_list> sources_list; | |
4420 | ||
bd742128 | 4421 | gdb_assert (group_by_objfile || uiout->is_mi_like_p ()); |
0e350a05 AB |
4422 | |
4423 | for (objfile *objfile : current_program_space->objfiles ()) | |
4424 | { | |
1fb1ce02 AB |
4425 | if (group_by_objfile) |
4426 | { | |
4427 | output_tuple.emplace (uiout, nullptr); | |
972f7a4b TT |
4428 | uiout->field_string ("filename", objfile_name (objfile), |
4429 | file_name_style.style ()); | |
bd742128 | 4430 | uiout->text (":\n"); |
1fb1ce02 | 4431 | bool debug_fully_readin = !objfile->has_unexpanded_symtabs (); |
bd742128 | 4432 | if (uiout->is_mi_like_p ()) |
1fb1ce02 | 4433 | { |
bd742128 AB |
4434 | const char *debug_info_state; |
4435 | if (objfile_has_symbols (objfile)) | |
4436 | { | |
4437 | if (debug_fully_readin) | |
4438 | debug_info_state = "fully-read"; | |
4439 | else | |
4440 | debug_info_state = "partially-read"; | |
4441 | } | |
1fb1ce02 | 4442 | else |
bd742128 AB |
4443 | debug_info_state = "none"; |
4444 | current_uiout->field_string ("debug-info", debug_info_state); | |
1fb1ce02 AB |
4445 | } |
4446 | else | |
bd742128 AB |
4447 | { |
4448 | if (!debug_fully_readin) | |
4449 | uiout->text ("(Full debug information has not yet been read " | |
4450 | "for this file.)\n"); | |
4451 | if (!objfile_has_symbols (objfile)) | |
4452 | uiout->text ("(Objfile has no debug information.)\n"); | |
4453 | uiout->text ("\n"); | |
4454 | } | |
1fb1ce02 AB |
4455 | sources_list.emplace (uiout, "sources"); |
4456 | } | |
4457 | ||
0e350a05 AB |
4458 | for (compunit_symtab *cu : objfile->compunits ()) |
4459 | { | |
102cc235 | 4460 | for (symtab *s : cu->filetabs ()) |
0e350a05 AB |
4461 | { |
4462 | const char *file = symtab_to_filename_for_display (s); | |
4463 | const char *fullname = symtab_to_fullname (s); | |
4464 | data.output (file, fullname, true); | |
4465 | } | |
4466 | } | |
1fb1ce02 AB |
4467 | |
4468 | if (group_by_objfile) | |
4469 | { | |
4470 | objfile->map_symbol_filenames (data, true /* need_fullname */); | |
bd742128 AB |
4471 | if (data.printed_filename_p ()) |
4472 | uiout->text ("\n\n"); | |
1fb1ce02 AB |
4473 | data.reset_output (); |
4474 | sources_list.reset (); | |
4475 | output_tuple.reset (); | |
4476 | } | |
0e350a05 AB |
4477 | } |
4478 | ||
1fb1ce02 AB |
4479 | if (!group_by_objfile) |
4480 | { | |
1fb1ce02 AB |
4481 | data.reset_output (); |
4482 | map_symbol_filenames (data, true /*need_fullname*/); | |
1fb1ce02 | 4483 | } |
0e350a05 AB |
4484 | } |
4485 | ||
4a0788e0 AB |
4486 | /* Implement the 'info sources' command. */ |
4487 | ||
28cd9371 PW |
4488 | static void |
4489 | info_sources_command (const char *args, int from_tty) | |
c906108c | 4490 | { |
c906108c | 4491 | if (!have_full_symbols () && !have_partial_symbols ()) |
4a0788e0 | 4492 | error (_("No symbol table is loaded. Use the \"file\" command.")); |
28cd9371 | 4493 | |
4a0788e0 AB |
4494 | filename_partial_match_opts match_opts; |
4495 | auto group = make_info_sources_options_def_group (&match_opts); | |
28cd9371 PW |
4496 | gdb::option::process_options |
4497 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_ERROR, group); | |
9fdc877b | 4498 | |
4a0788e0 AB |
4499 | if (match_opts.dirname && match_opts.basename) |
4500 | error (_("You cannot give both -basename and -dirname to 'info sources'.")); | |
c906108c | 4501 | |
4a0788e0 | 4502 | const char *regex = nullptr; |
0e350a05 | 4503 | if (args != NULL && *args != '\000') |
4a0788e0 | 4504 | regex = args; |
28cd9371 | 4505 | |
4a0788e0 AB |
4506 | if ((match_opts.dirname || match_opts.basename) && regex == nullptr) |
4507 | error (_("Missing REGEXP for 'info sources'.")); | |
28cd9371 | 4508 | |
4a0788e0 AB |
4509 | info_sources_filter::match_on match_type; |
4510 | if (match_opts.dirname) | |
4511 | match_type = info_sources_filter::match_on::DIRNAME; | |
4512 | else if (match_opts.basename) | |
4513 | match_type = info_sources_filter::match_on::BASENAME; | |
28cd9371 | 4514 | else |
4a0788e0 AB |
4515 | match_type = info_sources_filter::match_on::FULLNAME; |
4516 | ||
4517 | info_sources_filter filter (match_type, regex); | |
bd742128 | 4518 | info_sources_worker (current_uiout, true, filter); |
c906108c SS |
4519 | } |
4520 | ||
470c0b1c AB |
4521 | /* Compare FILE against all the entries of FILENAMES. If BASENAMES is |
4522 | true compare only lbasename of FILENAMES. */ | |
fbd9ab74 | 4523 | |
470c0b1c AB |
4524 | static bool |
4525 | file_matches (const char *file, const std::vector<const char *> &filenames, | |
4526 | bool basenames) | |
c906108c | 4527 | { |
470c0b1c AB |
4528 | if (filenames.empty ()) |
4529 | return true; | |
c906108c | 4530 | |
470c0b1c | 4531 | for (const char *name : filenames) |
c906108c | 4532 | { |
470c0b1c AB |
4533 | name = (basenames ? lbasename (name) : name); |
4534 | if (compare_filenames_for_search (file, name)) | |
4535 | return true; | |
c906108c | 4536 | } |
470c0b1c AB |
4537 | |
4538 | return false; | |
c906108c SS |
4539 | } |
4540 | ||
f97a63c5 AB |
4541 | /* Helper function for std::sort on symbol_search objects. Can only sort |
4542 | symbols, not minimal symbols. */ | |
eca864fe | 4543 | |
b9c04fb2 TT |
4544 | int |
4545 | symbol_search::compare_search_syms (const symbol_search &sym_a, | |
4546 | const symbol_search &sym_b) | |
434d2d4f | 4547 | { |
b52109bc DE |
4548 | int c; |
4549 | ||
4206d69e TT |
4550 | c = FILENAME_CMP (sym_a.symbol->symtab ()->filename, |
4551 | sym_b.symbol->symtab ()->filename); | |
b52109bc DE |
4552 | if (c != 0) |
4553 | return c; | |
434d2d4f | 4554 | |
b9c04fb2 TT |
4555 | if (sym_a.block != sym_b.block) |
4556 | return sym_a.block - sym_b.block; | |
b52109bc | 4557 | |
987012b8 | 4558 | return strcmp (sym_a.symbol->print_name (), sym_b.symbol->print_name ()); |
434d2d4f DJ |
4559 | } |
4560 | ||
12615cba PW |
4561 | /* Returns true if the type_name of symbol_type of SYM matches TREG. |
4562 | If SYM has no symbol_type or symbol_name, returns false. */ | |
4563 | ||
4564 | bool | |
4565 | treg_matches_sym_type_name (const compiled_regex &treg, | |
4566 | const struct symbol *sym) | |
4567 | { | |
4568 | struct type *sym_type; | |
4569 | std::string printed_sym_type_name; | |
4570 | ||
b1e678d9 AB |
4571 | symbol_lookup_debug_printf_v ("treg_matches_sym_type_name, sym %s", |
4572 | sym->natural_name ()); | |
12615cba | 4573 | |
5f9c5a63 | 4574 | sym_type = sym->type (); |
12615cba PW |
4575 | if (sym_type == NULL) |
4576 | return false; | |
4577 | ||
43d397ca PW |
4578 | { |
4579 | scoped_switch_to_sym_language_if_auto l (sym); | |
12615cba | 4580 | |
12615cba | 4581 | printed_sym_type_name = type_to_string (sym_type); |
43d397ca PW |
4582 | } |
4583 | ||
b1e678d9 AB |
4584 | symbol_lookup_debug_printf_v ("sym_type_name %s", |
4585 | printed_sym_type_name.c_str ()); | |
12615cba PW |
4586 | |
4587 | if (printed_sym_type_name.empty ()) | |
4588 | return false; | |
4589 | ||
4590 | return treg.exec (printed_sym_type_name.c_str (), 0, NULL, 0) == 0; | |
4591 | } | |
4592 | ||
f97a63c5 AB |
4593 | /* See symtab.h. */ |
4594 | ||
4595 | bool | |
4596 | global_symbol_searcher::is_suitable_msymbol | |
4597 | (const enum search_domain kind, const minimal_symbol *msymbol) | |
4598 | { | |
60f62e2b | 4599 | switch (msymbol->type ()) |
f97a63c5 AB |
4600 | { |
4601 | case mst_data: | |
4602 | case mst_bss: | |
4603 | case mst_file_data: | |
4604 | case mst_file_bss: | |
4605 | return kind == VARIABLES_DOMAIN; | |
4606 | case mst_text: | |
4607 | case mst_file_text: | |
4608 | case mst_solib_trampoline: | |
4609 | case mst_text_gnu_ifunc: | |
4610 | return kind == FUNCTIONS_DOMAIN; | |
4611 | default: | |
4612 | return false; | |
4613 | } | |
4614 | } | |
4615 | ||
4616 | /* See symtab.h. */ | |
4617 | ||
4618 | bool | |
4619 | global_symbol_searcher::expand_symtabs | |
4620 | (objfile *objfile, const gdb::optional<compiled_regex> &preg) const | |
4621 | { | |
4622 | enum search_domain kind = m_kind; | |
4623 | bool found_msymbol = false; | |
4624 | ||
c5a9fcdf TT |
4625 | auto do_file_match = [&] (const char *filename, bool basenames) |
4626 | { | |
4627 | return file_matches (filename, filenames, basenames); | |
4628 | }; | |
4629 | gdb::function_view<expand_symtabs_file_matcher_ftype> file_matcher = nullptr; | |
4630 | if (!filenames.empty ()) | |
4631 | file_matcher = do_file_match; | |
4632 | ||
4d080b46 | 4633 | objfile->expand_symtabs_matching |
c5a9fcdf | 4634 | (file_matcher, |
4d080b46 TT |
4635 | &lookup_name_info::match_any (), |
4636 | [&] (const char *symname) | |
4637 | { | |
4638 | return (!preg.has_value () | |
4639 | || preg->exec (symname, 0, NULL, 0) == 0); | |
4640 | }, | |
4641 | NULL, | |
03a8ea51 | 4642 | SEARCH_GLOBAL_BLOCK | SEARCH_STATIC_BLOCK, |
3bfa51a7 | 4643 | UNDEF_DOMAIN, |
4d080b46 | 4644 | kind); |
f97a63c5 AB |
4645 | |
4646 | /* Here, we search through the minimal symbol tables for functions and | |
4647 | variables that match, and force their symbols to be read. This is in | |
4648 | particular necessary for demangled variable names, which are no longer | |
4649 | put into the partial symbol tables. The symbol will then be found | |
4650 | during the scan of symtabs later. | |
4651 | ||
4652 | For functions, find_pc_symtab should succeed if we have debug info for | |
4653 | the function, for variables we have to call | |
4654 | lookup_symbol_in_objfile_from_linkage_name to determine if the | |
4655 | variable has debug info. If the lookup fails, set found_msymbol so | |
4656 | that we will rescan to print any matching symbols without debug info. | |
4657 | We only search the objfile the msymbol came from, we no longer search | |
4658 | all objfiles. In large programs (1000s of shared libs) searching all | |
4659 | objfiles is not worth the pain. */ | |
4660 | if (filenames.empty () | |
4661 | && (kind == VARIABLES_DOMAIN || kind == FUNCTIONS_DOMAIN)) | |
4662 | { | |
4663 | for (minimal_symbol *msymbol : objfile->msymbols ()) | |
4664 | { | |
4665 | QUIT; | |
4666 | ||
4667 | if (msymbol->created_by_gdb) | |
4668 | continue; | |
4669 | ||
4670 | if (is_suitable_msymbol (kind, msymbol)) | |
4671 | { | |
4672 | if (!preg.has_value () | |
4673 | || preg->exec (msymbol->natural_name (), 0, | |
4674 | NULL, 0) == 0) | |
4675 | { | |
4676 | /* An important side-effect of these lookup functions is | |
4677 | to expand the symbol table if msymbol is found, later | |
4678 | in the process we will add matching symbols or | |
4679 | msymbols to the results list, and that requires that | |
4680 | the symbols tables are expanded. */ | |
4681 | if (kind == FUNCTIONS_DOMAIN | |
4682 | ? (find_pc_compunit_symtab | |
4aeddc50 | 4683 | (msymbol->value_address (objfile)) == NULL) |
f97a63c5 AB |
4684 | : (lookup_symbol_in_objfile_from_linkage_name |
4685 | (objfile, msymbol->linkage_name (), | |
4686 | VAR_DOMAIN) | |
4687 | .symbol == NULL)) | |
4688 | found_msymbol = true; | |
4689 | } | |
4690 | } | |
4691 | } | |
4692 | } | |
4693 | ||
4694 | return found_msymbol; | |
4695 | } | |
4696 | ||
4697 | /* See symtab.h. */ | |
4698 | ||
c2512106 | 4699 | bool |
f97a63c5 AB |
4700 | global_symbol_searcher::add_matching_symbols |
4701 | (objfile *objfile, | |
4702 | const gdb::optional<compiled_regex> &preg, | |
4703 | const gdb::optional<compiled_regex> &treg, | |
c2512106 | 4704 | std::set<symbol_search> *result_set) const |
f97a63c5 AB |
4705 | { |
4706 | enum search_domain kind = m_kind; | |
4707 | ||
4708 | /* Add matching symbols (if not already present). */ | |
4709 | for (compunit_symtab *cust : objfile->compunits ()) | |
4710 | { | |
af39c5c8 | 4711 | const struct blockvector *bv = cust->blockvector (); |
f97a63c5 AB |
4712 | |
4713 | for (block_enum block : { GLOBAL_BLOCK, STATIC_BLOCK }) | |
4714 | { | |
4715 | struct block_iterator iter; | |
4716 | struct symbol *sym; | |
63d609de | 4717 | const struct block *b = bv->block (block); |
f97a63c5 AB |
4718 | |
4719 | ALL_BLOCK_SYMBOLS (b, iter, sym) | |
4720 | { | |
4206d69e | 4721 | struct symtab *real_symtab = sym->symtab (); |
f97a63c5 AB |
4722 | |
4723 | QUIT; | |
4724 | ||
4725 | /* Check first sole REAL_SYMTAB->FILENAME. It does | |
4726 | not need to be a substring of symtab_to_fullname as | |
4727 | it may contain "./" etc. */ | |
4728 | if ((file_matches (real_symtab->filename, filenames, false) | |
4729 | || ((basenames_may_differ | |
4730 | || file_matches (lbasename (real_symtab->filename), | |
4731 | filenames, true)) | |
4732 | && file_matches (symtab_to_fullname (real_symtab), | |
4733 | filenames, false))) | |
4734 | && ((!preg.has_value () | |
4735 | || preg->exec (sym->natural_name (), 0, | |
4736 | NULL, 0) == 0) | |
4737 | && ((kind == VARIABLES_DOMAIN | |
66d7f48f SM |
4738 | && sym->aclass () != LOC_TYPEDEF |
4739 | && sym->aclass () != LOC_UNRESOLVED | |
4740 | && sym->aclass () != LOC_BLOCK | |
f97a63c5 AB |
4741 | /* LOC_CONST can be used for more than |
4742 | just enums, e.g., c++ static const | |
4743 | members. We only want to skip enums | |
4744 | here. */ | |
66d7f48f | 4745 | && !(sym->aclass () == LOC_CONST |
5f9c5a63 | 4746 | && (sym->type ()->code () |
f97a63c5 AB |
4747 | == TYPE_CODE_ENUM)) |
4748 | && (!treg.has_value () | |
4749 | || treg_matches_sym_type_name (*treg, sym))) | |
4750 | || (kind == FUNCTIONS_DOMAIN | |
66d7f48f | 4751 | && sym->aclass () == LOC_BLOCK |
f97a63c5 AB |
4752 | && (!treg.has_value () |
4753 | || treg_matches_sym_type_name (*treg, | |
4754 | sym))) | |
4755 | || (kind == TYPES_DOMAIN | |
66d7f48f | 4756 | && sym->aclass () == LOC_TYPEDEF |
6c9c307c | 4757 | && sym->domain () != MODULE_DOMAIN) |
f97a63c5 | 4758 | || (kind == MODULES_DOMAIN |
6c9c307c | 4759 | && sym->domain () == MODULE_DOMAIN |
5d0027b9 | 4760 | && sym->line () != 0)))) |
f97a63c5 | 4761 | { |
c2512106 AB |
4762 | if (result_set->size () < m_max_search_results) |
4763 | { | |
4764 | /* Match, insert if not already in the results. */ | |
4765 | symbol_search ss (block, sym); | |
4766 | if (result_set->find (ss) == result_set->end ()) | |
4767 | result_set->insert (ss); | |
4768 | } | |
4769 | else | |
4770 | return false; | |
f97a63c5 AB |
4771 | } |
4772 | } | |
4773 | } | |
4774 | } | |
c2512106 AB |
4775 | |
4776 | return true; | |
f97a63c5 AB |
4777 | } |
4778 | ||
4779 | /* See symtab.h. */ | |
4780 | ||
c2512106 | 4781 | bool |
f97a63c5 AB |
4782 | global_symbol_searcher::add_matching_msymbols |
4783 | (objfile *objfile, const gdb::optional<compiled_regex> &preg, | |
4784 | std::vector<symbol_search> *results) const | |
4785 | { | |
4786 | enum search_domain kind = m_kind; | |
4787 | ||
4788 | for (minimal_symbol *msymbol : objfile->msymbols ()) | |
4789 | { | |
4790 | QUIT; | |
4791 | ||
4792 | if (msymbol->created_by_gdb) | |
4793 | continue; | |
4794 | ||
4795 | if (is_suitable_msymbol (kind, msymbol)) | |
4796 | { | |
4797 | if (!preg.has_value () | |
4798 | || preg->exec (msymbol->natural_name (), 0, | |
4799 | NULL, 0) == 0) | |
4800 | { | |
4801 | /* For functions we can do a quick check of whether the | |
4802 | symbol might be found via find_pc_symtab. */ | |
4803 | if (kind != FUNCTIONS_DOMAIN | |
4804 | || (find_pc_compunit_symtab | |
4aeddc50 | 4805 | (msymbol->value_address (objfile)) == NULL)) |
f97a63c5 AB |
4806 | { |
4807 | if (lookup_symbol_in_objfile_from_linkage_name | |
4808 | (objfile, msymbol->linkage_name (), | |
4809 | VAR_DOMAIN).symbol == NULL) | |
4810 | { | |
4811 | /* Matching msymbol, add it to the results list. */ | |
c2512106 AB |
4812 | if (results->size () < m_max_search_results) |
4813 | results->emplace_back (GLOBAL_BLOCK, msymbol, objfile); | |
4814 | else | |
4815 | return false; | |
f97a63c5 AB |
4816 | } |
4817 | } | |
4818 | } | |
4819 | } | |
4820 | } | |
12615cba | 4821 | |
c2512106 | 4822 | return true; |
434d2d4f | 4823 | } |
5bd98722 | 4824 | |
470c0b1c | 4825 | /* See symtab.h. */ |
c378eb4e | 4826 | |
b9c04fb2 | 4827 | std::vector<symbol_search> |
470c0b1c | 4828 | global_symbol_searcher::search () const |
c906108c | 4829 | { |
2d7cc5c7 | 4830 | gdb::optional<compiled_regex> preg; |
12615cba | 4831 | gdb::optional<compiled_regex> treg; |
c906108c | 4832 | |
470c0b1c | 4833 | gdb_assert (m_kind != ALL_DOMAIN); |
e8930875 | 4834 | |
470c0b1c | 4835 | if (m_symbol_name_regexp != NULL) |
c906108c | 4836 | { |
470c0b1c | 4837 | const char *symbol_name_regexp = m_symbol_name_regexp; |
9c48a8e6 | 4838 | std::string symbol_name_regexp_holder; |
470c0b1c | 4839 | |
c906108c | 4840 | /* Make sure spacing is right for C++ operators. |
dda83cd7 SM |
4841 | This is just a courtesy to make the matching less sensitive |
4842 | to how many spaces the user leaves between 'operator' | |
4843 | and <TYPENAME> or <OPERATOR>. */ | |
96142726 | 4844 | const char *opend; |
470c0b1c | 4845 | const char *opname = operator_chars (symbol_name_regexp, &opend); |
433759f7 | 4846 | |
c906108c | 4847 | if (*opname) |
c5aa993b | 4848 | { |
3e43a32a | 4849 | int fix = -1; /* -1 means ok; otherwise number of |
dda83cd7 | 4850 | spaces needed. */ |
433759f7 | 4851 | |
c5aa993b JM |
4852 | if (isalpha (*opname) || *opname == '_' || *opname == '$') |
4853 | { | |
c378eb4e | 4854 | /* There should 1 space between 'operator' and 'TYPENAME'. */ |
c5aa993b JM |
4855 | if (opname[-1] != ' ' || opname[-2] == ' ') |
4856 | fix = 1; | |
4857 | } | |
4858 | else | |
4859 | { | |
c378eb4e | 4860 | /* There should 0 spaces between 'operator' and 'OPERATOR'. */ |
c5aa993b JM |
4861 | if (opname[-1] == ' ') |
4862 | fix = 0; | |
4863 | } | |
c378eb4e | 4864 | /* If wrong number of spaces, fix it. */ |
c5aa993b JM |
4865 | if (fix >= 0) |
4866 | { | |
9c48a8e6 SM |
4867 | symbol_name_regexp_holder |
4868 | = string_printf ("operator%.*s%s", fix, " ", opname); | |
4869 | symbol_name_regexp = symbol_name_regexp_holder.c_str (); | |
c5aa993b JM |
4870 | } |
4871 | } | |
4872 | ||
2d7cc5c7 PA |
4873 | int cflags = REG_NOSUB | (case_sensitivity == case_sensitive_off |
4874 | ? REG_ICASE : 0); | |
470c0b1c AB |
4875 | preg.emplace (symbol_name_regexp, cflags, |
4876 | _("Invalid regexp")); | |
c906108c SS |
4877 | } |
4878 | ||
470c0b1c | 4879 | if (m_symbol_type_regexp != NULL) |
12615cba PW |
4880 | { |
4881 | int cflags = REG_NOSUB | (case_sensitivity == case_sensitive_off | |
4882 | ? REG_ICASE : 0); | |
470c0b1c AB |
4883 | treg.emplace (m_symbol_type_regexp, cflags, |
4884 | _("Invalid regexp")); | |
12615cba PW |
4885 | } |
4886 | ||
f97a63c5 | 4887 | bool found_msymbol = false; |
c2512106 | 4888 | std::set<symbol_search> result_set; |
2030c079 | 4889 | for (objfile *objfile : current_program_space->objfiles ()) |
d8aeb77f | 4890 | { |
f97a63c5 AB |
4891 | /* Expand symtabs within objfile that possibly contain matching |
4892 | symbols. */ | |
4893 | found_msymbol |= expand_symtabs (objfile, preg); | |
4894 | ||
c2512106 AB |
4895 | /* Find matching symbols within OBJFILE and add them in to the |
4896 | RESULT_SET set. Use a set here so that we can easily detect | |
4897 | duplicates as we go, and can therefore track how many unique | |
4898 | matches we have found so far. */ | |
4899 | if (!add_matching_symbols (objfile, preg, treg, &result_set)) | |
4900 | break; | |
d8aeb77f | 4901 | } |
c906108c | 4902 | |
c2512106 AB |
4903 | /* Convert the result set into a sorted result list, as std::set is |
4904 | defined to be sorted then no explicit call to std::sort is needed. */ | |
4905 | std::vector<symbol_search> result (result_set.begin (), result_set.end ()); | |
b52109bc | 4906 | |
470c0b1c | 4907 | /* If there are no debug symbols, then add matching minsyms. But if the |
f97a63c5 AB |
4908 | user wants to see symbols matching a type regexp, then never give a |
4909 | minimal symbol, as we assume that a minimal symbol does not have a | |
4910 | type. */ | |
4911 | if ((found_msymbol || (filenames.empty () && m_kind == VARIABLES_DOMAIN)) | |
470c0b1c | 4912 | && !m_exclude_minsyms |
a8462bbf | 4913 | && !treg.has_value ()) |
c906108c | 4914 | { |
f97a63c5 | 4915 | gdb_assert (m_kind == VARIABLES_DOMAIN || m_kind == FUNCTIONS_DOMAIN); |
2030c079 | 4916 | for (objfile *objfile : current_program_space->objfiles ()) |
c2512106 AB |
4917 | if (!add_matching_msymbols (objfile, preg, &result)) |
4918 | break; | |
c906108c SS |
4919 | } |
4920 | ||
b9c04fb2 | 4921 | return result; |
c906108c SS |
4922 | } |
4923 | ||
5f512a7d | 4924 | /* See symtab.h. */ |
c378eb4e | 4925 | |
5f512a7d AB |
4926 | std::string |
4927 | symbol_to_info_string (struct symbol *sym, int block, | |
4928 | enum search_domain kind) | |
c906108c | 4929 | { |
5f512a7d | 4930 | std::string str; |
05cba821 | 4931 | |
5f512a7d | 4932 | gdb_assert (block == GLOBAL_BLOCK || block == STATIC_BLOCK); |
b744723f | 4933 | |
176620f1 | 4934 | if (kind != TYPES_DOMAIN && block == STATIC_BLOCK) |
5f512a7d | 4935 | str += "static "; |
c5aa993b | 4936 | |
c378eb4e | 4937 | /* Typedef that is not a C++ class. */ |
176620f1 | 4938 | if (kind == TYPES_DOMAIN |
6c9c307c | 4939 | && sym->domain () != STRUCT_DOMAIN) |
eb86c5e2 | 4940 | { |
5f512a7d AB |
4941 | string_file tmp_stream; |
4942 | ||
eb86c5e2 AB |
4943 | /* FIXME: For C (and C++) we end up with a difference in output here |
4944 | between how a typedef is printed, and non-typedefs are printed. | |
4945 | The TYPEDEF_PRINT code places a ";" at the end in an attempt to | |
4946 | appear C-like, while TYPE_PRINT doesn't. | |
4947 | ||
4948 | For the struct printing case below, things are worse, we force | |
4949 | printing of the ";" in this function, which is going to be wrong | |
4950 | for languages that don't require a ";" between statements. */ | |
5f9c5a63 SM |
4951 | if (sym->type ()->code () == TYPE_CODE_TYPEDEF) |
4952 | typedef_print (sym->type (), sym, &tmp_stream); | |
eb86c5e2 | 4953 | else |
5f9c5a63 | 4954 | type_print (sym->type (), "", &tmp_stream, -1); |
5f512a7d | 4955 | str += tmp_stream.string (); |
eb86c5e2 | 4956 | } |
c378eb4e | 4957 | /* variable, func, or typedef-that-is-c++-class. */ |
d50bd42b DE |
4958 | else if (kind < TYPES_DOMAIN |
4959 | || (kind == TYPES_DOMAIN | |
6c9c307c | 4960 | && sym->domain () == STRUCT_DOMAIN)) |
c906108c | 4961 | { |
5f512a7d AB |
4962 | string_file tmp_stream; |
4963 | ||
5f9c5a63 | 4964 | type_print (sym->type (), |
66d7f48f | 4965 | (sym->aclass () == LOC_TYPEDEF |
987012b8 | 4966 | ? "" : sym->print_name ()), |
5f512a7d | 4967 | &tmp_stream, 0); |
c906108c | 4968 | |
5f512a7d AB |
4969 | str += tmp_stream.string (); |
4970 | str += ";"; | |
c906108c | 4971 | } |
59c35742 AB |
4972 | /* Printing of modules is currently done here, maybe at some future |
4973 | point we might want a language specific method to print the module | |
4974 | symbol so that we can customise the output more. */ | |
4975 | else if (kind == MODULES_DOMAIN) | |
5f512a7d AB |
4976 | str += sym->print_name (); |
4977 | ||
4978 | return str; | |
4979 | } | |
4980 | ||
4981 | /* Helper function for symbol info commands, for example 'info functions', | |
4982 | 'info variables', etc. KIND is the kind of symbol we searched for, and | |
4983 | BLOCK is the type of block the symbols was found in, either GLOBAL_BLOCK | |
4984 | or STATIC_BLOCK. SYM is the symbol we found. If LAST is not NULL, | |
4985 | print file and line number information for the symbol as well. Skip | |
4986 | printing the filename if it matches LAST. */ | |
4987 | ||
4988 | static void | |
4989 | print_symbol_info (enum search_domain kind, | |
4990 | struct symbol *sym, | |
4991 | int block, const char *last) | |
4992 | { | |
4993 | scoped_switch_to_sym_language_if_auto l (sym); | |
4206d69e | 4994 | struct symtab *s = sym->symtab (); |
5f512a7d AB |
4995 | |
4996 | if (last != NULL) | |
4997 | { | |
4998 | const char *s_filename = symtab_to_filename_for_display (s); | |
4999 | ||
5000 | if (filename_cmp (last, s_filename) != 0) | |
5001 | { | |
6cb06a8c TT |
5002 | gdb_printf (_("\nFile %ps:\n"), |
5003 | styled_string (file_name_style.style (), | |
5004 | s_filename)); | |
5f512a7d AB |
5005 | } |
5006 | ||
5d0027b9 | 5007 | if (sym->line () != 0) |
6cb06a8c | 5008 | gdb_printf ("%d:\t", sym->line ()); |
5f512a7d | 5009 | else |
0426ad51 | 5010 | gdb_puts ("\t"); |
5f512a7d AB |
5011 | } |
5012 | ||
5013 | std::string str = symbol_to_info_string (sym, block, kind); | |
6cb06a8c | 5014 | gdb_printf ("%s\n", str.c_str ()); |
c906108c SS |
5015 | } |
5016 | ||
5017 | /* This help function for symtab_symbol_info() prints information | |
c378eb4e MS |
5018 | for non-debugging symbols to gdb_stdout. */ |
5019 | ||
c906108c | 5020 | static void |
7c7b6655 | 5021 | print_msymbol_info (struct bound_minimal_symbol msymbol) |
c906108c | 5022 | { |
08feed99 | 5023 | struct gdbarch *gdbarch = msymbol.objfile->arch (); |
3ac4495a MS |
5024 | char *tmp; |
5025 | ||
d80b854b | 5026 | if (gdbarch_addr_bit (gdbarch) <= 32) |
4aeddc50 | 5027 | tmp = hex_string_custom (msymbol.value_address () |
bb599908 PH |
5028 | & (CORE_ADDR) 0xffffffff, |
5029 | 8); | |
3ac4495a | 5030 | else |
4aeddc50 | 5031 | tmp = hex_string_custom (msymbol.value_address (), |
bb599908 | 5032 | 16); |
6a831f06 PA |
5033 | |
5034 | ui_file_style sym_style = (msymbol.minsym->text_p () | |
5035 | ? function_name_style.style () | |
5036 | : ui_file_style ()); | |
5037 | ||
6cb06a8c TT |
5038 | gdb_printf (_("%ps %ps\n"), |
5039 | styled_string (address_style.style (), tmp), | |
5040 | styled_string (sym_style, msymbol.minsym->print_name ())); | |
c906108c SS |
5041 | } |
5042 | ||
5043 | /* This is the guts of the commands "info functions", "info types", and | |
c378eb4e | 5044 | "info variables". It calls search_symbols to find all matches and then |
c906108c | 5045 | print_[m]symbol_info to print out some useful information about the |
c378eb4e MS |
5046 | matches. */ |
5047 | ||
c906108c | 5048 | static void |
4acfdd20 | 5049 | symtab_symbol_info (bool quiet, bool exclude_minsyms, |
12615cba PW |
5050 | const char *regexp, enum search_domain kind, |
5051 | const char *t_regexp, int from_tty) | |
c906108c | 5052 | { |
bc043ef3 | 5053 | static const char * const classnames[] = |
59c35742 | 5054 | {"variable", "function", "type", "module"}; |
c7dcbf88 | 5055 | const char *last_filename = ""; |
c906108c SS |
5056 | int first = 1; |
5057 | ||
59c35742 | 5058 | gdb_assert (kind != ALL_DOMAIN); |
e8930875 | 5059 | |
b16507e0 AB |
5060 | if (regexp != nullptr && *regexp == '\0') |
5061 | regexp = nullptr; | |
5062 | ||
470c0b1c AB |
5063 | global_symbol_searcher spec (kind, regexp); |
5064 | spec.set_symbol_type_regexp (t_regexp); | |
5065 | spec.set_exclude_minsyms (exclude_minsyms); | |
5066 | std::vector<symbol_search> symbols = spec.search (); | |
c906108c | 5067 | |
12615cba PW |
5068 | if (!quiet) |
5069 | { | |
5070 | if (regexp != NULL) | |
5071 | { | |
5072 | if (t_regexp != NULL) | |
6cb06a8c | 5073 | gdb_printf |
12615cba | 5074 | (_("All %ss matching regular expression \"%s\"" |
0c95f9ed | 5075 | " with type matching regular expression \"%s\":\n"), |
12615cba PW |
5076 | classnames[kind], regexp, t_regexp); |
5077 | else | |
6cb06a8c TT |
5078 | gdb_printf (_("All %ss matching regular expression \"%s\":\n"), |
5079 | classnames[kind], regexp); | |
12615cba PW |
5080 | } |
5081 | else | |
5082 | { | |
5083 | if (t_regexp != NULL) | |
6cb06a8c | 5084 | gdb_printf |
12615cba | 5085 | (_("All defined %ss" |
0c95f9ed | 5086 | " with type matching regular expression \"%s\" :\n"), |
12615cba PW |
5087 | classnames[kind], t_regexp); |
5088 | else | |
6cb06a8c | 5089 | gdb_printf (_("All defined %ss:\n"), classnames[kind]); |
12615cba PW |
5090 | } |
5091 | } | |
c906108c | 5092 | |
b9c04fb2 | 5093 | for (const symbol_search &p : symbols) |
c906108c SS |
5094 | { |
5095 | QUIT; | |
5096 | ||
b9c04fb2 | 5097 | if (p.msymbol.minsym != NULL) |
c5aa993b JM |
5098 | { |
5099 | if (first) | |
5100 | { | |
12615cba | 5101 | if (!quiet) |
6cb06a8c | 5102 | gdb_printf (_("\nNon-debugging symbols:\n")); |
c5aa993b JM |
5103 | first = 0; |
5104 | } | |
b9c04fb2 | 5105 | print_msymbol_info (p.msymbol); |
c5aa993b | 5106 | } |
c906108c | 5107 | else |
c5aa993b JM |
5108 | { |
5109 | print_symbol_info (kind, | |
b9c04fb2 TT |
5110 | p.symbol, |
5111 | p.block, | |
c5aa993b | 5112 | last_filename); |
d01060f0 | 5113 | last_filename |
4206d69e | 5114 | = symtab_to_filename_for_display (p.symbol->symtab ()); |
c5aa993b | 5115 | } |
c906108c | 5116 | } |
c906108c SS |
5117 | } |
5118 | ||
4acfdd20 AB |
5119 | /* Structure to hold the values of the options used by the 'info variables' |
5120 | and 'info functions' commands. These correspond to the -q, -t, and -n | |
5121 | options. */ | |
5122 | ||
095252be | 5123 | struct info_vars_funcs_options |
4acfdd20 | 5124 | { |
491144b5 CB |
5125 | bool quiet = false; |
5126 | bool exclude_minsyms = false; | |
e0700ba4 | 5127 | std::string type_regexp; |
4acfdd20 AB |
5128 | }; |
5129 | ||
5130 | /* The options used by the 'info variables' and 'info functions' | |
5131 | commands. */ | |
5132 | ||
095252be AT |
5133 | static const gdb::option::option_def info_vars_funcs_options_defs[] = { |
5134 | gdb::option::boolean_option_def<info_vars_funcs_options> { | |
4acfdd20 | 5135 | "q", |
095252be | 5136 | [] (info_vars_funcs_options *opt) { return &opt->quiet; }, |
4acfdd20 AB |
5137 | nullptr, /* show_cmd_cb */ |
5138 | nullptr /* set_doc */ | |
5139 | }, | |
5140 | ||
095252be | 5141 | gdb::option::boolean_option_def<info_vars_funcs_options> { |
4acfdd20 | 5142 | "n", |
095252be | 5143 | [] (info_vars_funcs_options *opt) { return &opt->exclude_minsyms; }, |
4acfdd20 AB |
5144 | nullptr, /* show_cmd_cb */ |
5145 | nullptr /* set_doc */ | |
5146 | }, | |
5147 | ||
095252be | 5148 | gdb::option::string_option_def<info_vars_funcs_options> { |
4acfdd20 | 5149 | "t", |
e0700ba4 | 5150 | [] (info_vars_funcs_options *opt) { return &opt->type_regexp; }, |
4acfdd20 AB |
5151 | nullptr, /* show_cmd_cb */ |
5152 | nullptr /* set_doc */ | |
5153 | } | |
5154 | }; | |
5155 | ||
5156 | /* Returns the option group used by 'info variables' and 'info | |
5157 | functions'. */ | |
5158 | ||
5159 | static gdb::option::option_def_group | |
095252be | 5160 | make_info_vars_funcs_options_def_group (info_vars_funcs_options *opts) |
4acfdd20 | 5161 | { |
095252be | 5162 | return {{info_vars_funcs_options_defs}, opts}; |
4acfdd20 AB |
5163 | } |
5164 | ||
5165 | /* Command completer for 'info variables' and 'info functions'. */ | |
5166 | ||
5167 | static void | |
095252be AT |
5168 | info_vars_funcs_command_completer (struct cmd_list_element *ignore, |
5169 | completion_tracker &tracker, | |
5170 | const char *text, const char * /* word */) | |
4acfdd20 AB |
5171 | { |
5172 | const auto group | |
095252be | 5173 | = make_info_vars_funcs_options_def_group (nullptr); |
4acfdd20 AB |
5174 | if (gdb::option::complete_options |
5175 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
5176 | return; | |
5177 | ||
5178 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
5179 | symbol_completer (ignore, tracker, text, word); | |
5180 | } | |
5181 | ||
b16507e0 AB |
5182 | /* Implement the 'info variables' command. */ |
5183 | ||
0b39b52e | 5184 | static void |
12615cba | 5185 | info_variables_command (const char *args, int from_tty) |
0b39b52e | 5186 | { |
095252be AT |
5187 | info_vars_funcs_options opts; |
5188 | auto grp = make_info_vars_funcs_options_def_group (&opts); | |
4acfdd20 AB |
5189 | gdb::option::process_options |
5190 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5191 | if (args != nullptr && *args == '\0') | |
5192 | args = nullptr; | |
b16507e0 | 5193 | |
e0700ba4 SM |
5194 | symtab_symbol_info |
5195 | (opts.quiet, opts.exclude_minsyms, args, VARIABLES_DOMAIN, | |
5196 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
5197 | from_tty); | |
0b39b52e TT |
5198 | } |
5199 | ||
b16507e0 | 5200 | /* Implement the 'info functions' command. */ |
12615cba | 5201 | |
c906108c | 5202 | static void |
12615cba | 5203 | info_functions_command (const char *args, int from_tty) |
c906108c | 5204 | { |
095252be AT |
5205 | info_vars_funcs_options opts; |
5206 | ||
5207 | auto grp = make_info_vars_funcs_options_def_group (&opts); | |
4acfdd20 AB |
5208 | gdb::option::process_options |
5209 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5210 | if (args != nullptr && *args == '\0') | |
5211 | args = nullptr; | |
b16507e0 | 5212 | |
e0700ba4 SM |
5213 | symtab_symbol_info |
5214 | (opts.quiet, opts.exclude_minsyms, args, FUNCTIONS_DOMAIN, | |
5215 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
5216 | from_tty); | |
c906108c SS |
5217 | } |
5218 | ||
a8eab7c6 AB |
5219 | /* Holds the -q option for the 'info types' command. */ |
5220 | ||
5221 | struct info_types_options | |
5222 | { | |
491144b5 | 5223 | bool quiet = false; |
a8eab7c6 AB |
5224 | }; |
5225 | ||
5226 | /* The options used by the 'info types' command. */ | |
5227 | ||
5228 | static const gdb::option::option_def info_types_options_defs[] = { | |
5229 | gdb::option::boolean_option_def<info_types_options> { | |
5230 | "q", | |
5231 | [] (info_types_options *opt) { return &opt->quiet; }, | |
5232 | nullptr, /* show_cmd_cb */ | |
5233 | nullptr /* set_doc */ | |
5234 | } | |
5235 | }; | |
5236 | ||
5237 | /* Returns the option group used by 'info types'. */ | |
5238 | ||
5239 | static gdb::option::option_def_group | |
5240 | make_info_types_options_def_group (info_types_options *opts) | |
5241 | { | |
5242 | return {{info_types_options_defs}, opts}; | |
5243 | } | |
5244 | ||
5245 | /* Implement the 'info types' command. */ | |
357e46e7 | 5246 | |
c906108c | 5247 | static void |
a8eab7c6 | 5248 | info_types_command (const char *args, int from_tty) |
c906108c | 5249 | { |
a8eab7c6 AB |
5250 | info_types_options opts; |
5251 | ||
5252 | auto grp = make_info_types_options_def_group (&opts); | |
5253 | gdb::option::process_options | |
5254 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5255 | if (args != nullptr && *args == '\0') | |
5256 | args = nullptr; | |
4acfdd20 | 5257 | symtab_symbol_info (opts.quiet, false, args, TYPES_DOMAIN, NULL, from_tty); |
a8eab7c6 AB |
5258 | } |
5259 | ||
5260 | /* Command completer for 'info types' command. */ | |
5261 | ||
5262 | static void | |
5263 | info_types_command_completer (struct cmd_list_element *ignore, | |
5264 | completion_tracker &tracker, | |
5265 | const char *text, const char * /* word */) | |
5266 | { | |
5267 | const auto group | |
5268 | = make_info_types_options_def_group (nullptr); | |
5269 | if (gdb::option::complete_options | |
5270 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
5271 | return; | |
5272 | ||
5273 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
5274 | symbol_completer (ignore, tracker, text, word); | |
c906108c SS |
5275 | } |
5276 | ||
59c35742 AB |
5277 | /* Implement the 'info modules' command. */ |
5278 | ||
5279 | static void | |
5280 | info_modules_command (const char *args, int from_tty) | |
5281 | { | |
5282 | info_types_options opts; | |
5283 | ||
5284 | auto grp = make_info_types_options_def_group (&opts); | |
5285 | gdb::option::process_options | |
5286 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5287 | if (args != nullptr && *args == '\0') | |
5288 | args = nullptr; | |
5289 | symtab_symbol_info (opts.quiet, true, args, MODULES_DOMAIN, NULL, | |
5290 | from_tty); | |
5291 | } | |
5292 | ||
c906108c | 5293 | static void |
0b39b52e | 5294 | rbreak_command (const char *regexp, int from_tty) |
c906108c | 5295 | { |
c80049d3 | 5296 | std::string string; |
470c0b1c | 5297 | const char *file_name = nullptr; |
c906108c | 5298 | |
470c0b1c | 5299 | if (regexp != nullptr) |
8bd10a10 | 5300 | { |
0b39b52e | 5301 | const char *colon = strchr (regexp, ':'); |
433759f7 | 5302 | |
2c074f49 HD |
5303 | /* Ignore the colon if it is part of a Windows drive. */ |
5304 | if (HAS_DRIVE_SPEC (regexp) | |
5305 | && (regexp[2] == '/' || regexp[2] == '\\')) | |
5306 | colon = strchr (STRIP_DRIVE_SPEC (regexp), ':'); | |
5307 | ||
8bd10a10 CM |
5308 | if (colon && *(colon + 1) != ':') |
5309 | { | |
5310 | int colon_index; | |
96142726 | 5311 | char *local_name; |
8bd10a10 CM |
5312 | |
5313 | colon_index = colon - regexp; | |
224c3ddb | 5314 | local_name = (char *) alloca (colon_index + 1); |
96142726 TT |
5315 | memcpy (local_name, regexp, colon_index); |
5316 | local_name[colon_index--] = 0; | |
5317 | while (isspace (local_name[colon_index])) | |
5318 | local_name[colon_index--] = 0; | |
5319 | file_name = local_name; | |
529480d0 | 5320 | regexp = skip_spaces (colon + 1); |
8bd10a10 CM |
5321 | } |
5322 | } | |
5323 | ||
470c0b1c AB |
5324 | global_symbol_searcher spec (FUNCTIONS_DOMAIN, regexp); |
5325 | if (file_name != nullptr) | |
5326 | spec.filenames.push_back (file_name); | |
5327 | std::vector<symbol_search> symbols = spec.search (); | |
c906108c | 5328 | |
c80049d3 | 5329 | scoped_rbreak_breakpoints finalize; |
b9c04fb2 | 5330 | for (const symbol_search &p : symbols) |
c906108c | 5331 | { |
b9c04fb2 | 5332 | if (p.msymbol.minsym == NULL) |
c5aa993b | 5333 | { |
4206d69e | 5334 | struct symtab *symtab = p.symbol->symtab (); |
d01060f0 | 5335 | const char *fullname = symtab_to_fullname (symtab); |
05cba821 | 5336 | |
c80049d3 | 5337 | string = string_printf ("%s:'%s'", fullname, |
987012b8 | 5338 | p.symbol->linkage_name ()); |
c80049d3 | 5339 | break_command (&string[0], from_tty); |
c7dcbf88 | 5340 | print_symbol_info (FUNCTIONS_DOMAIN, p.symbol, p.block, NULL); |
c5aa993b | 5341 | } |
c906108c | 5342 | else |
c5aa993b | 5343 | { |
c80049d3 | 5344 | string = string_printf ("'%s'", |
c9d95fa3 | 5345 | p.msymbol.minsym->linkage_name ()); |
6214f497 | 5346 | |
c80049d3 | 5347 | break_command (&string[0], from_tty); |
6cb06a8c TT |
5348 | gdb_printf ("<function, no debug info> %s;\n", |
5349 | p.msymbol.minsym->print_name ()); | |
c5aa993b | 5350 | } |
c906108c | 5351 | } |
c906108c | 5352 | } |
c906108c | 5353 | \f |
c5aa993b | 5354 | |
c62446b1 | 5355 | /* Evaluate if SYMNAME matches LOOKUP_NAME. */ |
1976171a JK |
5356 | |
5357 | static int | |
c62446b1 | 5358 | compare_symbol_name (const char *symbol_name, language symbol_language, |
b5ec771e | 5359 | const lookup_name_info &lookup_name, |
b5ec771e PA |
5360 | completion_match_result &match_res) |
5361 | { | |
d4c2a405 | 5362 | const language_defn *lang = language_def (symbol_language); |
1976171a | 5363 | |
b5ec771e | 5364 | symbol_name_matcher_ftype *name_match |
c9debfb9 | 5365 | = lang->get_symbol_name_matcher (lookup_name); |
1976171a | 5366 | |
a207cff2 | 5367 | return name_match (symbol_name, lookup_name, &match_res); |
1976171a JK |
5368 | } |
5369 | ||
b5ec771e | 5370 | /* See symtab.h. */ |
c906108c | 5371 | |
e08bd6c5 | 5372 | bool |
eb3ff9a5 | 5373 | completion_list_add_name (completion_tracker &tracker, |
b5ec771e | 5374 | language symbol_language, |
eb3ff9a5 | 5375 | const char *symname, |
b5ec771e | 5376 | const lookup_name_info &lookup_name, |
0d5cff50 | 5377 | const char *text, const char *word) |
c906108c | 5378 | { |
b5ec771e PA |
5379 | completion_match_result &match_res |
5380 | = tracker.reset_completion_match_result (); | |
5381 | ||
c378eb4e | 5382 | /* Clip symbols that cannot match. */ |
c62446b1 | 5383 | if (!compare_symbol_name (symname, symbol_language, lookup_name, match_res)) |
e08bd6c5 | 5384 | return false; |
c906108c | 5385 | |
b5ec771e PA |
5386 | /* Refresh SYMNAME from the match string. It's potentially |
5387 | different depending on language. (E.g., on Ada, the match may be | |
5388 | the encoded symbol name wrapped in "<>"). */ | |
5389 | symname = match_res.match.match (); | |
5390 | gdb_assert (symname != NULL); | |
5391 | ||
c906108c | 5392 | /* We have a match for a completion, so add SYMNAME to the current list |
c378eb4e | 5393 | of matches. Note that the name is moved to freshly malloc'd space. */ |
c906108c SS |
5394 | |
5395 | { | |
60a20c19 PA |
5396 | gdb::unique_xmalloc_ptr<char> completion |
5397 | = make_completion_match_str (symname, text, word); | |
ef0b411a | 5398 | |
a207cff2 PA |
5399 | /* Here we pass the match-for-lcd object to add_completion. Some |
5400 | languages match the user text against substrings of symbol | |
5401 | names in some cases. E.g., in C++, "b push_ba" completes to | |
5402 | "std::vector::push_back", "std::string::push_back", etc., and | |
5403 | in this case we want the completion lowest common denominator | |
5404 | to be "push_back" instead of "std::". */ | |
5405 | tracker.add_completion (std::move (completion), | |
a22ecf70 | 5406 | &match_res.match_for_lcd, text, word); |
c906108c | 5407 | } |
e08bd6c5 PA |
5408 | |
5409 | return true; | |
c906108c SS |
5410 | } |
5411 | ||
6da67eb1 PA |
5412 | /* completion_list_add_name wrapper for struct symbol. */ |
5413 | ||
5414 | static void | |
eb3ff9a5 PA |
5415 | completion_list_add_symbol (completion_tracker &tracker, |
5416 | symbol *sym, | |
b5ec771e | 5417 | const lookup_name_info &lookup_name, |
6da67eb1 PA |
5418 | const char *text, const char *word) |
5419 | { | |
e08bd6c5 PA |
5420 | if (!completion_list_add_name (tracker, sym->language (), |
5421 | sym->natural_name (), | |
5422 | lookup_name, text, word)) | |
5423 | return; | |
19a2740f AB |
5424 | |
5425 | /* C++ function symbols include the parameters within both the msymbol | |
5426 | name and the symbol name. The problem is that the msymbol name will | |
5427 | describe the parameters in the most basic way, with typedefs stripped | |
5428 | out, while the symbol name will represent the types as they appear in | |
5429 | the program. This means we will see duplicate entries in the | |
5430 | completion tracker. The following converts the symbol name back to | |
5431 | the msymbol name and removes the msymbol name from the completion | |
5432 | tracker. */ | |
5433 | if (sym->language () == language_cplus | |
6c9c307c | 5434 | && sym->domain () == VAR_DOMAIN |
66d7f48f | 5435 | && sym->aclass () == LOC_BLOCK) |
19a2740f AB |
5436 | { |
5437 | /* The call to canonicalize returns the empty string if the input | |
5438 | string is already in canonical form, thanks to this we don't | |
5439 | remove the symbol we just added above. */ | |
596dc4ad | 5440 | gdb::unique_xmalloc_ptr<char> str |
19a2740f | 5441 | = cp_canonicalize_string_no_typedefs (sym->natural_name ()); |
596dc4ad TT |
5442 | if (str != nullptr) |
5443 | tracker.remove_completion (str.get ()); | |
19a2740f | 5444 | } |
6da67eb1 PA |
5445 | } |
5446 | ||
5447 | /* completion_list_add_name wrapper for struct minimal_symbol. */ | |
5448 | ||
5449 | static void | |
eb3ff9a5 PA |
5450 | completion_list_add_msymbol (completion_tracker &tracker, |
5451 | minimal_symbol *sym, | |
b5ec771e | 5452 | const lookup_name_info &lookup_name, |
6da67eb1 PA |
5453 | const char *text, const char *word) |
5454 | { | |
c1b5c1eb | 5455 | completion_list_add_name (tracker, sym->language (), |
c9d95fa3 | 5456 | sym->natural_name (), |
1b026119 | 5457 | lookup_name, text, word); |
6da67eb1 PA |
5458 | } |
5459 | ||
b5ec771e | 5460 | |
69636828 AF |
5461 | /* ObjC: In case we are completing on a selector, look as the msymbol |
5462 | again and feed all the selectors into the mill. */ | |
5463 | ||
5464 | static void | |
eb3ff9a5 PA |
5465 | completion_list_objc_symbol (completion_tracker &tracker, |
5466 | struct minimal_symbol *msymbol, | |
b5ec771e | 5467 | const lookup_name_info &lookup_name, |
0d5cff50 | 5468 | const char *text, const char *word) |
69636828 AF |
5469 | { |
5470 | static char *tmp = NULL; | |
5471 | static unsigned int tmplen = 0; | |
9af17804 | 5472 | |
0d5cff50 | 5473 | const char *method, *category, *selector; |
69636828 | 5474 | char *tmp2 = NULL; |
9af17804 | 5475 | |
c9d95fa3 | 5476 | method = msymbol->natural_name (); |
69636828 AF |
5477 | |
5478 | /* Is it a method? */ | |
5479 | if ((method[0] != '-') && (method[0] != '+')) | |
5480 | return; | |
5481 | ||
1b026119 | 5482 | if (text[0] == '[') |
69636828 | 5483 | /* Complete on shortened method method. */ |
b5ec771e PA |
5484 | completion_list_add_name (tracker, language_objc, |
5485 | method + 1, | |
5486 | lookup_name, | |
1b026119 | 5487 | text, word); |
9af17804 | 5488 | |
69636828 AF |
5489 | while ((strlen (method) + 1) >= tmplen) |
5490 | { | |
5491 | if (tmplen == 0) | |
5492 | tmplen = 1024; | |
5493 | else | |
5494 | tmplen *= 2; | |
224c3ddb | 5495 | tmp = (char *) xrealloc (tmp, tmplen); |
69636828 AF |
5496 | } |
5497 | selector = strchr (method, ' '); | |
5498 | if (selector != NULL) | |
5499 | selector++; | |
9af17804 | 5500 | |
69636828 | 5501 | category = strchr (method, '('); |
9af17804 | 5502 | |
69636828 AF |
5503 | if ((category != NULL) && (selector != NULL)) |
5504 | { | |
5505 | memcpy (tmp, method, (category - method)); | |
5506 | tmp[category - method] = ' '; | |
5507 | memcpy (tmp + (category - method) + 1, selector, strlen (selector) + 1); | |
b5ec771e | 5508 | completion_list_add_name (tracker, language_objc, tmp, |
1b026119 PA |
5509 | lookup_name, text, word); |
5510 | if (text[0] == '[') | |
b5ec771e | 5511 | completion_list_add_name (tracker, language_objc, tmp + 1, |
1b026119 | 5512 | lookup_name, text, word); |
69636828 | 5513 | } |
9af17804 | 5514 | |
69636828 AF |
5515 | if (selector != NULL) |
5516 | { | |
5517 | /* Complete on selector only. */ | |
5518 | strcpy (tmp, selector); | |
5519 | tmp2 = strchr (tmp, ']'); | |
5520 | if (tmp2 != NULL) | |
5521 | *tmp2 = '\0'; | |
9af17804 | 5522 | |
b5ec771e | 5523 | completion_list_add_name (tracker, language_objc, tmp, |
1b026119 | 5524 | lookup_name, text, word); |
69636828 AF |
5525 | } |
5526 | } | |
5527 | ||
5528 | /* Break the non-quoted text based on the characters which are in | |
c378eb4e | 5529 | symbols. FIXME: This should probably be language-specific. */ |
69636828 | 5530 | |
6f937416 PA |
5531 | static const char * |
5532 | language_search_unquoted_string (const char *text, const char *p) | |
69636828 AF |
5533 | { |
5534 | for (; p > text; --p) | |
5535 | { | |
5536 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0') | |
5537 | continue; | |
5538 | else | |
5539 | { | |
5540 | if ((current_language->la_language == language_objc)) | |
5541 | { | |
c378eb4e | 5542 | if (p[-1] == ':') /* Might be part of a method name. */ |
69636828 AF |
5543 | continue; |
5544 | else if (p[-1] == '[' && (p[-2] == '-' || p[-2] == '+')) | |
c378eb4e | 5545 | p -= 2; /* Beginning of a method name. */ |
69636828 | 5546 | else if (p[-1] == ' ' || p[-1] == '(' || p[-1] == ')') |
c378eb4e | 5547 | { /* Might be part of a method name. */ |
6f937416 | 5548 | const char *t = p; |
69636828 AF |
5549 | |
5550 | /* Seeing a ' ' or a '(' is not conclusive evidence | |
5551 | that we are in the middle of a method name. However, | |
5552 | finding "-[" or "+[" should be pretty un-ambiguous. | |
5553 | Unfortunately we have to find it now to decide. */ | |
5554 | ||
5555 | while (t > text) | |
5556 | if (isalnum (t[-1]) || t[-1] == '_' || | |
5557 | t[-1] == ' ' || t[-1] == ':' || | |
5558 | t[-1] == '(' || t[-1] == ')') | |
5559 | --t; | |
5560 | else | |
5561 | break; | |
5562 | ||
5563 | if (t[-1] == '[' && (t[-2] == '-' || t[-2] == '+')) | |
c378eb4e MS |
5564 | p = t - 2; /* Method name detected. */ |
5565 | /* Else we leave with p unchanged. */ | |
69636828 AF |
5566 | } |
5567 | } | |
5568 | break; | |
5569 | } | |
5570 | } | |
5571 | return p; | |
5572 | } | |
5573 | ||
edb3359d | 5574 | static void |
eb3ff9a5 PA |
5575 | completion_list_add_fields (completion_tracker &tracker, |
5576 | struct symbol *sym, | |
b5ec771e | 5577 | const lookup_name_info &lookup_name, |
eb3ff9a5 | 5578 | const char *text, const char *word) |
edb3359d | 5579 | { |
66d7f48f | 5580 | if (sym->aclass () == LOC_TYPEDEF) |
edb3359d | 5581 | { |
5f9c5a63 | 5582 | struct type *t = sym->type (); |
78134374 | 5583 | enum type_code c = t->code (); |
edb3359d DJ |
5584 | int j; |
5585 | ||
5586 | if (c == TYPE_CODE_UNION || c == TYPE_CODE_STRUCT) | |
1f704f76 | 5587 | for (j = TYPE_N_BASECLASSES (t); j < t->num_fields (); j++) |
33d16dd9 | 5588 | if (t->field (j).name ()) |
c1b5c1eb | 5589 | completion_list_add_name (tracker, sym->language (), |
33d16dd9 | 5590 | t->field (j).name (), |
1b026119 | 5591 | lookup_name, text, word); |
edb3359d DJ |
5592 | } |
5593 | } | |
5594 | ||
f9d67a22 PA |
5595 | /* See symtab.h. */ |
5596 | ||
5597 | bool | |
5598 | symbol_is_function_or_method (symbol *sym) | |
5599 | { | |
5f9c5a63 | 5600 | switch (sym->type ()->code ()) |
f9d67a22 PA |
5601 | { |
5602 | case TYPE_CODE_FUNC: | |
5603 | case TYPE_CODE_METHOD: | |
5604 | return true; | |
5605 | default: | |
5606 | return false; | |
5607 | } | |
5608 | } | |
5609 | ||
5610 | /* See symtab.h. */ | |
5611 | ||
5612 | bool | |
5613 | symbol_is_function_or_method (minimal_symbol *msymbol) | |
5614 | { | |
60f62e2b | 5615 | switch (msymbol->type ()) |
f9d67a22 PA |
5616 | { |
5617 | case mst_text: | |
5618 | case mst_text_gnu_ifunc: | |
5619 | case mst_solib_trampoline: | |
5620 | case mst_file_text: | |
5621 | return true; | |
5622 | default: | |
5623 | return false; | |
5624 | } | |
5625 | } | |
5626 | ||
ca31ab1d PA |
5627 | /* See symtab.h. */ |
5628 | ||
5629 | bound_minimal_symbol | |
5630 | find_gnu_ifunc (const symbol *sym) | |
5631 | { | |
66d7f48f | 5632 | if (sym->aclass () != LOC_BLOCK) |
ca31ab1d PA |
5633 | return {}; |
5634 | ||
987012b8 | 5635 | lookup_name_info lookup_name (sym->search_name (), |
ca31ab1d | 5636 | symbol_name_match_type::SEARCH_NAME); |
e19b2d94 | 5637 | struct objfile *objfile = sym->objfile (); |
ca31ab1d | 5638 | |
6395b628 | 5639 | CORE_ADDR address = sym->value_block ()->entry_pc (); |
ca31ab1d PA |
5640 | minimal_symbol *ifunc = NULL; |
5641 | ||
5642 | iterate_over_minimal_symbols (objfile, lookup_name, | |
5643 | [&] (minimal_symbol *minsym) | |
5644 | { | |
60f62e2b SM |
5645 | if (minsym->type () == mst_text_gnu_ifunc |
5646 | || minsym->type () == mst_data_gnu_ifunc) | |
ca31ab1d | 5647 | { |
4aeddc50 | 5648 | CORE_ADDR msym_addr = minsym->value_address (objfile); |
60f62e2b | 5649 | if (minsym->type () == mst_data_gnu_ifunc) |
f50776aa | 5650 | { |
08feed99 | 5651 | struct gdbarch *gdbarch = objfile->arch (); |
328d42d8 SM |
5652 | msym_addr = gdbarch_convert_from_func_ptr_addr |
5653 | (gdbarch, msym_addr, current_inferior ()->top_target ()); | |
f50776aa PA |
5654 | } |
5655 | if (msym_addr == address) | |
5656 | { | |
5657 | ifunc = minsym; | |
5658 | return true; | |
5659 | } | |
ca31ab1d PA |
5660 | } |
5661 | return false; | |
5662 | }); | |
5663 | ||
5664 | if (ifunc != NULL) | |
5665 | return {ifunc, objfile}; | |
5666 | return {}; | |
5667 | } | |
5668 | ||
e11c72c7 GB |
5669 | /* Add matching symbols from SYMTAB to the current completion list. */ |
5670 | ||
5671 | static void | |
5672 | add_symtab_completions (struct compunit_symtab *cust, | |
eb3ff9a5 | 5673 | completion_tracker &tracker, |
f9d67a22 | 5674 | complete_symbol_mode mode, |
b5ec771e | 5675 | const lookup_name_info &lookup_name, |
e11c72c7 GB |
5676 | const char *text, const char *word, |
5677 | enum type_code code) | |
5678 | { | |
5679 | struct symbol *sym; | |
e11c72c7 GB |
5680 | struct block_iterator iter; |
5681 | int i; | |
5682 | ||
ff6fa247 GB |
5683 | if (cust == NULL) |
5684 | return; | |
5685 | ||
e11c72c7 GB |
5686 | for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++) |
5687 | { | |
5688 | QUIT; | |
63d609de SM |
5689 | |
5690 | const struct block *b = cust->blockvector ()->block (i); | |
e11c72c7 GB |
5691 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
5692 | { | |
f9d67a22 PA |
5693 | if (completion_skip_symbol (mode, sym)) |
5694 | continue; | |
5695 | ||
e11c72c7 | 5696 | if (code == TYPE_CODE_UNDEF |
6c9c307c | 5697 | || (sym->domain () == STRUCT_DOMAIN |
5f9c5a63 | 5698 | && sym->type ()->code () == code)) |
eb3ff9a5 | 5699 | completion_list_add_symbol (tracker, sym, |
b5ec771e | 5700 | lookup_name, |
e11c72c7 GB |
5701 | text, word); |
5702 | } | |
5703 | } | |
5704 | } | |
5705 | ||
eb3ff9a5 PA |
5706 | void |
5707 | default_collect_symbol_completion_matches_break_on | |
b5ec771e PA |
5708 | (completion_tracker &tracker, complete_symbol_mode mode, |
5709 | symbol_name_match_type name_match_type, | |
eb3ff9a5 PA |
5710 | const char *text, const char *word, |
5711 | const char *break_on, enum type_code code) | |
c906108c | 5712 | { |
41d27058 JB |
5713 | /* Problem: All of the symbols have to be copied because readline |
5714 | frees them. I'm not going to worry about this; hopefully there | |
5715 | won't be that many. */ | |
5716 | ||
de4f826b | 5717 | struct symbol *sym; |
3977b71f | 5718 | const struct block *b; |
edb3359d | 5719 | const struct block *surrounding_static_block, *surrounding_global_block; |
8157b174 | 5720 | struct block_iterator iter; |
c906108c | 5721 | /* The symbol we are completing on. Points in same buffer as text. */ |
6f937416 | 5722 | const char *sym_text; |
c906108c | 5723 | |
41d27058 | 5724 | /* Now look for the symbol we are supposed to complete on. */ |
c6756f62 PA |
5725 | if (mode == complete_symbol_mode::LINESPEC) |
5726 | sym_text = text; | |
5727 | else | |
01add95b SM |
5728 | { |
5729 | const char *p; | |
5730 | char quote_found; | |
5731 | const char *quote_pos = NULL; | |
c906108c | 5732 | |
01add95b SM |
5733 | /* First see if this is a quoted string. */ |
5734 | quote_found = '\0'; | |
5735 | for (p = text; *p != '\0'; ++p) | |
5736 | { | |
5737 | if (quote_found != '\0') | |
5738 | { | |
5739 | if (*p == quote_found) | |
5740 | /* Found close quote. */ | |
5741 | quote_found = '\0'; | |
5742 | else if (*p == '\\' && p[1] == quote_found) | |
5743 | /* A backslash followed by the quote character | |
5744 | doesn't end the string. */ | |
5745 | ++p; | |
5746 | } | |
5747 | else if (*p == '\'' || *p == '"') | |
5748 | { | |
5749 | quote_found = *p; | |
5750 | quote_pos = p; | |
5751 | } | |
5752 | } | |
5753 | if (quote_found == '\'') | |
5754 | /* A string within single quotes can be a symbol, so complete on it. */ | |
5755 | sym_text = quote_pos + 1; | |
5756 | else if (quote_found == '"') | |
5757 | /* A double-quoted string is never a symbol, nor does it make sense | |
5758 | to complete it any other way. */ | |
5759 | { | |
5760 | return; | |
5761 | } | |
5762 | else | |
5763 | { | |
5764 | /* It is not a quoted string. Break it based on the characters | |
5765 | which are in symbols. */ | |
5766 | while (p > text) | |
5767 | { | |
5768 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0' | |
5769 | || p[-1] == ':' || strchr (break_on, p[-1]) != NULL) | |
5770 | --p; | |
5771 | else | |
5772 | break; | |
5773 | } | |
5774 | sym_text = p; | |
5775 | } | |
5776 | } | |
c906108c | 5777 | |
1b026119 | 5778 | lookup_name_info lookup_name (sym_text, name_match_type, true); |
b5ec771e | 5779 | |
c906108c SS |
5780 | /* At this point scan through the misc symbol vectors and add each |
5781 | symbol you find to the list. Eventually we want to ignore | |
5782 | anything that isn't a text symbol (everything else will be | |
e11c72c7 | 5783 | handled by the psymtab code below). */ |
c906108c | 5784 | |
2f68a895 TT |
5785 | if (code == TYPE_CODE_UNDEF) |
5786 | { | |
2030c079 | 5787 | for (objfile *objfile : current_program_space->objfiles ()) |
2f68a895 | 5788 | { |
7932255d | 5789 | for (minimal_symbol *msymbol : objfile->msymbols ()) |
5325b9bf TT |
5790 | { |
5791 | QUIT; | |
9af17804 | 5792 | |
5325b9bf TT |
5793 | if (completion_skip_symbol (mode, msymbol)) |
5794 | continue; | |
f9d67a22 | 5795 | |
5325b9bf TT |
5796 | completion_list_add_msymbol (tracker, msymbol, lookup_name, |
5797 | sym_text, word); | |
eb3ff9a5 | 5798 | |
5325b9bf TT |
5799 | completion_list_objc_symbol (tracker, msymbol, lookup_name, |
5800 | sym_text, word); | |
5801 | } | |
2f68a895 TT |
5802 | } |
5803 | } | |
c906108c | 5804 | |
e11c72c7 | 5805 | /* Add completions for all currently loaded symbol tables. */ |
2030c079 | 5806 | for (objfile *objfile : current_program_space->objfiles ()) |
d8aeb77f | 5807 | { |
b669c953 | 5808 | for (compunit_symtab *cust : objfile->compunits ()) |
d8aeb77f TT |
5809 | add_symtab_completions (cust, tracker, mode, lookup_name, |
5810 | sym_text, word, code); | |
5811 | } | |
e11c72c7 | 5812 | |
14bc53a8 PA |
5813 | /* Look through the partial symtabs for all symbols which begin by |
5814 | matching SYM_TEXT. Expand all CUs that you find to the list. */ | |
5815 | expand_symtabs_matching (NULL, | |
b5ec771e PA |
5816 | lookup_name, |
5817 | NULL, | |
14bc53a8 PA |
5818 | [&] (compunit_symtab *symtab) /* expansion notify */ |
5819 | { | |
5820 | add_symtab_completions (symtab, | |
f9d67a22 | 5821 | tracker, mode, lookup_name, |
1b026119 | 5822 | sym_text, word, code); |
df35e626 | 5823 | return true; |
14bc53a8 | 5824 | }, |
03a8ea51 | 5825 | SEARCH_GLOBAL_BLOCK | SEARCH_STATIC_BLOCK, |
14bc53a8 | 5826 | ALL_DOMAIN); |
e11c72c7 | 5827 | |
c906108c | 5828 | /* Search upwards from currently selected frame (so that we can |
edb3359d DJ |
5829 | complete on local vars). Also catch fields of types defined in |
5830 | this places which match our text string. Only complete on types | |
c378eb4e | 5831 | visible from current context. */ |
edb3359d DJ |
5832 | |
5833 | b = get_selected_block (0); | |
78004096 | 5834 | surrounding_static_block = b == nullptr ? nullptr : block_static_block (b); |
8f14fd11 | 5835 | surrounding_global_block = b == nullptr : nullptr : block_global_block (b); |
edb3359d DJ |
5836 | if (surrounding_static_block != NULL) |
5837 | while (b != surrounding_static_block) | |
5838 | { | |
5839 | QUIT; | |
c906108c | 5840 | |
edb3359d DJ |
5841 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
5842 | { | |
2f68a895 TT |
5843 | if (code == TYPE_CODE_UNDEF) |
5844 | { | |
b5ec771e | 5845 | completion_list_add_symbol (tracker, sym, lookup_name, |
1b026119 | 5846 | sym_text, word); |
b5ec771e | 5847 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 5848 | sym_text, word); |
2f68a895 | 5849 | } |
6c9c307c | 5850 | else if (sym->domain () == STRUCT_DOMAIN |
5f9c5a63 | 5851 | && sym->type ()->code () == code) |
b5ec771e | 5852 | completion_list_add_symbol (tracker, sym, lookup_name, |
1b026119 | 5853 | sym_text, word); |
edb3359d | 5854 | } |
c5aa993b | 5855 | |
edb3359d DJ |
5856 | /* Stop when we encounter an enclosing function. Do not stop for |
5857 | non-inlined functions - the locals of the enclosing function | |
5858 | are in scope for a nested function. */ | |
a4dfe747 | 5859 | if (b->function () != NULL && b->inlined_p ()) |
edb3359d | 5860 | break; |
f135fe72 | 5861 | b = b->superblock (); |
edb3359d | 5862 | } |
c906108c | 5863 | |
edb3359d | 5864 | /* Add fields from the file's types; symbols will be added below. */ |
c906108c | 5865 | |
2f68a895 TT |
5866 | if (code == TYPE_CODE_UNDEF) |
5867 | { | |
5868 | if (surrounding_static_block != NULL) | |
5869 | ALL_BLOCK_SYMBOLS (surrounding_static_block, iter, sym) | |
b5ec771e | 5870 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 5871 | sym_text, word); |
edb3359d | 5872 | |
2f68a895 TT |
5873 | if (surrounding_global_block != NULL) |
5874 | ALL_BLOCK_SYMBOLS (surrounding_global_block, iter, sym) | |
b5ec771e | 5875 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 5876 | sym_text, word); |
2f68a895 | 5877 | } |
c906108c | 5878 | |
2f68a895 TT |
5879 | /* Skip macros if we are completing a struct tag -- arguable but |
5880 | usually what is expected. */ | |
1ac14a04 | 5881 | if (current_language->macro_expansion () == macro_expansion_c |
2f68a895 | 5882 | && code == TYPE_CODE_UNDEF) |
9a044a89 | 5883 | { |
f6c2623e | 5884 | gdb::unique_xmalloc_ptr<struct macro_scope> scope; |
9a044a89 | 5885 | |
14bc53a8 PA |
5886 | /* This adds a macro's name to the current completion list. */ |
5887 | auto add_macro_name = [&] (const char *macro_name, | |
5888 | const macro_definition *, | |
5889 | macro_source_file *, | |
5890 | int) | |
5891 | { | |
1b026119 PA |
5892 | completion_list_add_name (tracker, language_c, macro_name, |
5893 | lookup_name, sym_text, word); | |
14bc53a8 PA |
5894 | }; |
5895 | ||
9a044a89 TT |
5896 | /* Add any macros visible in the default scope. Note that this |
5897 | may yield the occasional wrong result, because an expression | |
5898 | might be evaluated in a scope other than the default. For | |
5899 | example, if the user types "break file:line if <TAB>", the | |
5900 | resulting expression will be evaluated at "file:line" -- but | |
5901 | at there does not seem to be a way to detect this at | |
5902 | completion time. */ | |
5903 | scope = default_macro_scope (); | |
5904 | if (scope) | |
f6c2623e TT |
5905 | macro_for_each_in_scope (scope->file, scope->line, |
5906 | add_macro_name); | |
9a044a89 TT |
5907 | |
5908 | /* User-defined macros are always visible. */ | |
14bc53a8 | 5909 | macro_for_each (macro_user_macros, add_macro_name); |
9a044a89 | 5910 | } |
ef0b411a GB |
5911 | } |
5912 | ||
eb3ff9a5 PA |
5913 | /* Collect all symbols (regardless of class) which begin by matching |
5914 | TEXT. */ | |
41d27058 | 5915 | |
eb3ff9a5 PA |
5916 | void |
5917 | collect_symbol_completion_matches (completion_tracker &tracker, | |
c6756f62 | 5918 | complete_symbol_mode mode, |
b5ec771e | 5919 | symbol_name_match_type name_match_type, |
eb3ff9a5 | 5920 | const char *text, const char *word) |
41d27058 | 5921 | { |
7e56227d AB |
5922 | current_language->collect_symbol_completion_matches (tracker, mode, |
5923 | name_match_type, | |
5924 | text, word, | |
5925 | TYPE_CODE_UNDEF); | |
2f68a895 TT |
5926 | } |
5927 | ||
eb3ff9a5 PA |
5928 | /* Like collect_symbol_completion_matches, but only collect |
5929 | STRUCT_DOMAIN symbols whose type code is CODE. */ | |
2f68a895 | 5930 | |
eb3ff9a5 PA |
5931 | void |
5932 | collect_symbol_completion_matches_type (completion_tracker &tracker, | |
5933 | const char *text, const char *word, | |
5934 | enum type_code code) | |
2f68a895 | 5935 | { |
c6756f62 | 5936 | complete_symbol_mode mode = complete_symbol_mode::EXPRESSION; |
b5ec771e | 5937 | symbol_name_match_type name_match_type = symbol_name_match_type::EXPRESSION; |
c6756f62 | 5938 | |
2f68a895 TT |
5939 | gdb_assert (code == TYPE_CODE_UNION |
5940 | || code == TYPE_CODE_STRUCT | |
2f68a895 | 5941 | || code == TYPE_CODE_ENUM); |
7e56227d AB |
5942 | current_language->collect_symbol_completion_matches (tracker, mode, |
5943 | name_match_type, | |
5944 | text, word, code); | |
41d27058 JB |
5945 | } |
5946 | ||
eb3ff9a5 PA |
5947 | /* Like collect_symbol_completion_matches, but collects a list of |
5948 | symbols defined in all source files named SRCFILE. */ | |
c94fdfd0 | 5949 | |
eb3ff9a5 PA |
5950 | void |
5951 | collect_file_symbol_completion_matches (completion_tracker &tracker, | |
c6756f62 | 5952 | complete_symbol_mode mode, |
b5ec771e | 5953 | symbol_name_match_type name_match_type, |
eb3ff9a5 PA |
5954 | const char *text, const char *word, |
5955 | const char *srcfile) | |
c94fdfd0 | 5956 | { |
c94fdfd0 | 5957 | /* The symbol we are completing on. Points in same buffer as text. */ |
6f937416 | 5958 | const char *sym_text; |
c94fdfd0 EZ |
5959 | |
5960 | /* Now look for the symbol we are supposed to complete on. | |
5961 | FIXME: This should be language-specific. */ | |
c6756f62 PA |
5962 | if (mode == complete_symbol_mode::LINESPEC) |
5963 | sym_text = text; | |
5964 | else | |
01add95b SM |
5965 | { |
5966 | const char *p; | |
5967 | char quote_found; | |
5968 | const char *quote_pos = NULL; | |
c94fdfd0 | 5969 | |
01add95b SM |
5970 | /* First see if this is a quoted string. */ |
5971 | quote_found = '\0'; | |
5972 | for (p = text; *p != '\0'; ++p) | |
5973 | { | |
5974 | if (quote_found != '\0') | |
5975 | { | |
5976 | if (*p == quote_found) | |
5977 | /* Found close quote. */ | |
5978 | quote_found = '\0'; | |
5979 | else if (*p == '\\' && p[1] == quote_found) | |
5980 | /* A backslash followed by the quote character | |
5981 | doesn't end the string. */ | |
5982 | ++p; | |
5983 | } | |
5984 | else if (*p == '\'' || *p == '"') | |
5985 | { | |
5986 | quote_found = *p; | |
5987 | quote_pos = p; | |
5988 | } | |
5989 | } | |
5990 | if (quote_found == '\'') | |
5991 | /* A string within single quotes can be a symbol, so complete on it. */ | |
5992 | sym_text = quote_pos + 1; | |
5993 | else if (quote_found == '"') | |
5994 | /* A double-quoted string is never a symbol, nor does it make sense | |
5995 | to complete it any other way. */ | |
5996 | { | |
5997 | return; | |
5998 | } | |
5999 | else | |
6000 | { | |
6001 | /* Not a quoted string. */ | |
6002 | sym_text = language_search_unquoted_string (text, p); | |
6003 | } | |
6004 | } | |
c94fdfd0 | 6005 | |
1b026119 | 6006 | lookup_name_info lookup_name (sym_text, name_match_type, true); |
b5ec771e | 6007 | |
8f14146e PA |
6008 | /* Go through symtabs for SRCFILE and check the externs and statics |
6009 | for symbols which match. */ | |
6010 | iterate_over_symtabs (srcfile, [&] (symtab *s) | |
c94fdfd0 | 6011 | { |
c6159652 | 6012 | add_symtab_completions (s->compunit (), |
f9d67a22 | 6013 | tracker, mode, lookup_name, |
1b026119 | 6014 | sym_text, word, TYPE_CODE_UNDEF); |
8f14146e PA |
6015 | return false; |
6016 | }); | |
e27852be DE |
6017 | } |
6018 | ||
c94fdfd0 EZ |
6019 | /* A helper function for make_source_files_completion_list. It adds |
6020 | another file name to a list of possible completions, growing the | |
6021 | list as necessary. */ | |
6022 | ||
6023 | static void | |
6f937416 | 6024 | add_filename_to_list (const char *fname, const char *text, const char *word, |
eb3ff9a5 | 6025 | completion_list *list) |
c94fdfd0 | 6026 | { |
60a20c19 | 6027 | list->emplace_back (make_completion_match_str (fname, text, word)); |
c94fdfd0 EZ |
6028 | } |
6029 | ||
6030 | static int | |
6031 | not_interesting_fname (const char *fname) | |
6032 | { | |
6033 | static const char *illegal_aliens[] = { | |
6034 | "_globals_", /* inserted by coff_symtab_read */ | |
6035 | NULL | |
6036 | }; | |
6037 | int i; | |
6038 | ||
6039 | for (i = 0; illegal_aliens[i]; i++) | |
6040 | { | |
0ba1096a | 6041 | if (filename_cmp (fname, illegal_aliens[i]) == 0) |
c94fdfd0 EZ |
6042 | return 1; |
6043 | } | |
6044 | return 0; | |
6045 | } | |
6046 | ||
f4655dee | 6047 | /* An object of this type is passed as the callback argument to |
ccefe4c4 TT |
6048 | map_partial_symbol_filenames. */ |
6049 | struct add_partial_filename_data | |
6050 | { | |
9fdc877b | 6051 | struct filename_seen_cache *filename_seen_cache; |
6f937416 PA |
6052 | const char *text; |
6053 | const char *word; | |
ccefe4c4 | 6054 | int text_len; |
eb3ff9a5 | 6055 | completion_list *list; |
f4655dee TT |
6056 | |
6057 | void operator() (const char *filename, const char *fullname); | |
ccefe4c4 TT |
6058 | }; |
6059 | ||
6060 | /* A callback for map_partial_symbol_filenames. */ | |
eca864fe | 6061 | |
f4655dee TT |
6062 | void |
6063 | add_partial_filename_data::operator() (const char *filename, | |
6064 | const char *fullname) | |
ccefe4c4 | 6065 | { |
ccefe4c4 TT |
6066 | if (not_interesting_fname (filename)) |
6067 | return; | |
f4655dee TT |
6068 | if (!filename_seen_cache->seen (filename) |
6069 | && filename_ncmp (filename, text, text_len) == 0) | |
ccefe4c4 TT |
6070 | { |
6071 | /* This file matches for a completion; add it to the | |
6072 | current list of matches. */ | |
f4655dee | 6073 | add_filename_to_list (filename, text, word, list); |
ccefe4c4 TT |
6074 | } |
6075 | else | |
6076 | { | |
6077 | const char *base_name = lbasename (filename); | |
433759f7 | 6078 | |
ccefe4c4 | 6079 | if (base_name != filename |
f4655dee TT |
6080 | && !filename_seen_cache->seen (base_name) |
6081 | && filename_ncmp (base_name, text, text_len) == 0) | |
6082 | add_filename_to_list (base_name, text, word, list); | |
ccefe4c4 TT |
6083 | } |
6084 | } | |
6085 | ||
eb3ff9a5 | 6086 | /* Return a list of all source files whose names begin with matching |
49c4e619 | 6087 | TEXT. The file names are looked up in the symbol tables of this |
eb3ff9a5 | 6088 | program. */ |
c94fdfd0 | 6089 | |
eb3ff9a5 | 6090 | completion_list |
6f937416 | 6091 | make_source_files_completion_list (const char *text, const char *word) |
c94fdfd0 | 6092 | { |
c94fdfd0 | 6093 | size_t text_len = strlen (text); |
eb3ff9a5 | 6094 | completion_list list; |
31889e00 | 6095 | const char *base_name; |
ccefe4c4 | 6096 | struct add_partial_filename_data datum; |
c94fdfd0 | 6097 | |
c94fdfd0 EZ |
6098 | if (!have_full_symbols () && !have_partial_symbols ()) |
6099 | return list; | |
6100 | ||
bbf2f4df | 6101 | filename_seen_cache filenames_seen; |
9fdc877b | 6102 | |
2030c079 | 6103 | for (objfile *objfile : current_program_space->objfiles ()) |
c94fdfd0 | 6104 | { |
b669c953 | 6105 | for (compunit_symtab *cu : objfile->compunits ()) |
c94fdfd0 | 6106 | { |
102cc235 | 6107 | for (symtab *s : cu->filetabs ()) |
8b31193a TT |
6108 | { |
6109 | if (not_interesting_fname (s->filename)) | |
6110 | continue; | |
6111 | if (!filenames_seen.seen (s->filename) | |
6112 | && filename_ncmp (s->filename, text, text_len) == 0) | |
6113 | { | |
6114 | /* This file matches for a completion; add it to the current | |
6115 | list of matches. */ | |
6116 | add_filename_to_list (s->filename, text, word, &list); | |
6117 | } | |
6118 | else | |
6119 | { | |
6120 | /* NOTE: We allow the user to type a base name when the | |
6121 | debug info records leading directories, but not the other | |
6122 | way around. This is what subroutines of breakpoint | |
6123 | command do when they parse file names. */ | |
6124 | base_name = lbasename (s->filename); | |
6125 | if (base_name != s->filename | |
6126 | && !filenames_seen.seen (base_name) | |
6127 | && filename_ncmp (base_name, text, text_len) == 0) | |
6128 | add_filename_to_list (base_name, text, word, &list); | |
6129 | } | |
6130 | } | |
c94fdfd0 EZ |
6131 | } |
6132 | } | |
6133 | ||
bbf2f4df | 6134 | datum.filename_seen_cache = &filenames_seen; |
ccefe4c4 TT |
6135 | datum.text = text; |
6136 | datum.word = word; | |
6137 | datum.text_len = text_len; | |
6138 | datum.list = &list; | |
f4655dee | 6139 | map_symbol_filenames (datum, false /*need_fullname*/); |
9fdc877b | 6140 | |
c94fdfd0 EZ |
6141 | return list; |
6142 | } | |
c906108c | 6143 | \f |
51cc5b07 | 6144 | /* Track MAIN */ |
32ac0d11 TT |
6145 | |
6146 | /* Return the "main_info" object for the current program space. If | |
6147 | the object has not yet been created, create it and fill in some | |
6148 | default values. */ | |
6149 | ||
6150 | static struct main_info * | |
6151 | get_main_info (void) | |
6152 | { | |
a32ad8c5 | 6153 | struct main_info *info = main_progspace_key.get (current_program_space); |
32ac0d11 TT |
6154 | |
6155 | if (info == NULL) | |
6156 | { | |
3d548a53 TT |
6157 | /* It may seem strange to store the main name in the progspace |
6158 | and also in whatever objfile happens to see a main name in | |
6159 | its debug info. The reason for this is mainly historical: | |
6160 | gdb returned "main" as the name even if no function named | |
6161 | "main" was defined the program; and this approach lets us | |
6162 | keep compatibility. */ | |
a32ad8c5 | 6163 | info = main_progspace_key.emplace (current_program_space); |
32ac0d11 TT |
6164 | } |
6165 | ||
6166 | return info; | |
6167 | } | |
6168 | ||
3d548a53 | 6169 | static void |
9e6c82ad | 6170 | set_main_name (const char *name, enum language lang) |
51cc5b07 | 6171 | { |
32ac0d11 TT |
6172 | struct main_info *info = get_main_info (); |
6173 | ||
25eb2931 | 6174 | if (!info->name_of_main.empty ()) |
51cc5b07 | 6175 | { |
25eb2931 | 6176 | info->name_of_main.clear (); |
32ac0d11 | 6177 | info->language_of_main = language_unknown; |
51cc5b07 AC |
6178 | } |
6179 | if (name != NULL) | |
6180 | { | |
25eb2931 | 6181 | info->name_of_main = name; |
32ac0d11 | 6182 | info->language_of_main = lang; |
51cc5b07 AC |
6183 | } |
6184 | } | |
6185 | ||
ea53e89f JB |
6186 | /* Deduce the name of the main procedure, and set NAME_OF_MAIN |
6187 | accordingly. */ | |
6188 | ||
6189 | static void | |
6190 | find_main_name (void) | |
6191 | { | |
cd6c7346 | 6192 | const char *new_main_name; |
3d548a53 TT |
6193 | |
6194 | /* First check the objfiles to see whether a debuginfo reader has | |
6195 | picked up the appropriate main name. Historically the main name | |
6196 | was found in a more or less random way; this approach instead | |
6197 | relies on the order of objfile creation -- which still isn't | |
6198 | guaranteed to get the correct answer, but is just probably more | |
6199 | accurate. */ | |
2030c079 | 6200 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
6201 | { |
6202 | if (objfile->per_bfd->name_of_main != NULL) | |
6203 | { | |
6204 | set_main_name (objfile->per_bfd->name_of_main, | |
6205 | objfile->per_bfd->language_of_main); | |
6206 | return; | |
6207 | } | |
6208 | } | |
ea53e89f JB |
6209 | |
6210 | /* Try to see if the main procedure is in Ada. */ | |
6211 | /* FIXME: brobecker/2005-03-07: Another way of doing this would | |
6212 | be to add a new method in the language vector, and call this | |
6213 | method for each language until one of them returns a non-empty | |
6214 | name. This would allow us to remove this hard-coded call to | |
6215 | an Ada function. It is not clear that this is a better approach | |
6216 | at this point, because all methods need to be written in a way | |
c378eb4e | 6217 | such that false positives never be returned. For instance, it is |
ea53e89f JB |
6218 | important that a method does not return a wrong name for the main |
6219 | procedure if the main procedure is actually written in a different | |
6220 | language. It is easy to guaranty this with Ada, since we use a | |
6221 | special symbol generated only when the main in Ada to find the name | |
c378eb4e | 6222 | of the main procedure. It is difficult however to see how this can |
ea53e89f JB |
6223 | be guarantied for languages such as C, for instance. This suggests |
6224 | that order of call for these methods becomes important, which means | |
6225 | a more complicated approach. */ | |
6226 | new_main_name = ada_main_name (); | |
6227 | if (new_main_name != NULL) | |
9af17804 | 6228 | { |
9e6c82ad | 6229 | set_main_name (new_main_name, language_ada); |
ea53e89f JB |
6230 | return; |
6231 | } | |
6232 | ||
63778547 IB |
6233 | new_main_name = d_main_name (); |
6234 | if (new_main_name != NULL) | |
6235 | { | |
6236 | set_main_name (new_main_name, language_d); | |
6237 | return; | |
6238 | } | |
6239 | ||
a766d390 DE |
6240 | new_main_name = go_main_name (); |
6241 | if (new_main_name != NULL) | |
6242 | { | |
9e6c82ad | 6243 | set_main_name (new_main_name, language_go); |
a766d390 DE |
6244 | return; |
6245 | } | |
6246 | ||
cd6c7346 PM |
6247 | new_main_name = pascal_main_name (); |
6248 | if (new_main_name != NULL) | |
9af17804 | 6249 | { |
9e6c82ad | 6250 | set_main_name (new_main_name, language_pascal); |
cd6c7346 PM |
6251 | return; |
6252 | } | |
6253 | ||
ea53e89f JB |
6254 | /* The languages above didn't identify the name of the main procedure. |
6255 | Fallback to "main". */ | |
d3214198 TV |
6256 | |
6257 | /* Try to find language for main in psymtabs. */ | |
531bd038 MM |
6258 | bool symbol_found_p = false; |
6259 | gdbarch_iterate_over_objfiles_in_search_order | |
6260 | (target_gdbarch (), | |
6261 | [&symbol_found_p] (objfile *obj) | |
6262 | { | |
6263 | language lang | |
6264 | = obj->lookup_global_symbol_language ("main", VAR_DOMAIN, | |
6265 | &symbol_found_p); | |
6266 | if (symbol_found_p) | |
6267 | { | |
6268 | set_main_name ("main", lang); | |
6269 | return 1; | |
6270 | } | |
6271 | ||
6272 | return 0; | |
6273 | }, nullptr); | |
6274 | ||
6275 | if (symbol_found_p) | |
6276 | return; | |
d3214198 | 6277 | |
9e6c82ad | 6278 | set_main_name ("main", language_unknown); |
ea53e89f JB |
6279 | } |
6280 | ||
cd215b2e TT |
6281 | /* See symtab.h. */ |
6282 | ||
6283 | const char * | |
6284 | main_name () | |
51cc5b07 | 6285 | { |
32ac0d11 TT |
6286 | struct main_info *info = get_main_info (); |
6287 | ||
25eb2931 | 6288 | if (info->name_of_main.empty ()) |
ea53e89f JB |
6289 | find_main_name (); |
6290 | ||
25eb2931 | 6291 | return info->name_of_main.c_str (); |
51cc5b07 AC |
6292 | } |
6293 | ||
9e6c82ad TT |
6294 | /* Return the language of the main function. If it is not known, |
6295 | return language_unknown. */ | |
6296 | ||
6297 | enum language | |
6298 | main_language (void) | |
6299 | { | |
32ac0d11 TT |
6300 | struct main_info *info = get_main_info (); |
6301 | ||
25eb2931 | 6302 | if (info->name_of_main.empty ()) |
32ac0d11 TT |
6303 | find_main_name (); |
6304 | ||
6305 | return info->language_of_main; | |
9e6c82ad TT |
6306 | } |
6307 | ||
ea53e89f JB |
6308 | /* Handle ``executable_changed'' events for the symtab module. */ |
6309 | ||
6310 | static void | |
781b42b0 | 6311 | symtab_observer_executable_changed (void) |
ea53e89f JB |
6312 | { |
6313 | /* NAME_OF_MAIN may no longer be the same, so reset it for now. */ | |
9e6c82ad | 6314 | set_main_name (NULL, language_unknown); |
ea53e89f | 6315 | } |
51cc5b07 | 6316 | |
a6c727b2 DJ |
6317 | /* Return 1 if the supplied producer string matches the ARM RealView |
6318 | compiler (armcc). */ | |
6319 | ||
ececd218 | 6320 | bool |
a6c727b2 DJ |
6321 | producer_is_realview (const char *producer) |
6322 | { | |
6323 | static const char *const arm_idents[] = { | |
6324 | "ARM C Compiler, ADS", | |
6325 | "Thumb C Compiler, ADS", | |
6326 | "ARM C++ Compiler, ADS", | |
6327 | "Thumb C++ Compiler, ADS", | |
6328 | "ARM/Thumb C/C++ Compiler, RVCT", | |
6329 | "ARM C/C++ Compiler, RVCT" | |
6330 | }; | |
a6c727b2 DJ |
6331 | |
6332 | if (producer == NULL) | |
ececd218 | 6333 | return false; |
a6c727b2 | 6334 | |
696d6f4d TT |
6335 | for (const char *ident : arm_idents) |
6336 | if (startswith (producer, ident)) | |
ececd218 | 6337 | return true; |
a6c727b2 | 6338 | |
ececd218 | 6339 | return false; |
a6c727b2 | 6340 | } |
ed0616c6 | 6341 | |
f1e6e072 TT |
6342 | \f |
6343 | ||
6344 | /* The next index to hand out in response to a registration request. */ | |
6345 | ||
6346 | static int next_aclass_value = LOC_FINAL_VALUE; | |
6347 | ||
6348 | /* The maximum number of "aclass" registrations we support. This is | |
6349 | constant for convenience. */ | |
6350 | #define MAX_SYMBOL_IMPLS (LOC_FINAL_VALUE + 10) | |
6351 | ||
6352 | /* The objects representing the various "aclass" values. The elements | |
6353 | from 0 up to LOC_FINAL_VALUE-1 represent themselves, and subsequent | |
6354 | elements are those registered at gdb initialization time. */ | |
6355 | ||
6356 | static struct symbol_impl symbol_impl[MAX_SYMBOL_IMPLS]; | |
6357 | ||
6358 | /* The globally visible pointer. This is separate from 'symbol_impl' | |
6359 | so that it can be const. */ | |
6360 | ||
6bc3c5b4 | 6361 | gdb::array_view<const struct symbol_impl> symbol_impls (symbol_impl); |
f1e6e072 TT |
6362 | |
6363 | /* Make sure we saved enough room in struct symbol. */ | |
6364 | ||
6365 | gdb_static_assert (MAX_SYMBOL_IMPLS <= (1 << SYMBOL_ACLASS_BITS)); | |
6366 | ||
6367 | /* Register a computed symbol type. ACLASS must be LOC_COMPUTED. OPS | |
6368 | is the ops vector associated with this index. This returns the new | |
6369 | index, which should be used as the aclass_index field for symbols | |
6370 | of this type. */ | |
6371 | ||
6372 | int | |
6373 | register_symbol_computed_impl (enum address_class aclass, | |
6374 | const struct symbol_computed_ops *ops) | |
6375 | { | |
6376 | int result = next_aclass_value++; | |
6377 | ||
6378 | gdb_assert (aclass == LOC_COMPUTED); | |
6379 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6380 | symbol_impl[result].aclass = aclass; | |
6381 | symbol_impl[result].ops_computed = ops; | |
6382 | ||
24d6c2a0 TT |
6383 | /* Sanity check OPS. */ |
6384 | gdb_assert (ops != NULL); | |
6385 | gdb_assert (ops->tracepoint_var_ref != NULL); | |
6386 | gdb_assert (ops->describe_location != NULL); | |
0b31a4bc | 6387 | gdb_assert (ops->get_symbol_read_needs != NULL); |
24d6c2a0 TT |
6388 | gdb_assert (ops->read_variable != NULL); |
6389 | ||
f1e6e072 TT |
6390 | return result; |
6391 | } | |
6392 | ||
6393 | /* Register a function with frame base type. ACLASS must be LOC_BLOCK. | |
6394 | OPS is the ops vector associated with this index. This returns the | |
6395 | new index, which should be used as the aclass_index field for symbols | |
6396 | of this type. */ | |
6397 | ||
6398 | int | |
6399 | register_symbol_block_impl (enum address_class aclass, | |
6400 | const struct symbol_block_ops *ops) | |
6401 | { | |
6402 | int result = next_aclass_value++; | |
6403 | ||
6404 | gdb_assert (aclass == LOC_BLOCK); | |
6405 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6406 | symbol_impl[result].aclass = aclass; | |
6407 | symbol_impl[result].ops_block = ops; | |
6408 | ||
6409 | /* Sanity check OPS. */ | |
6410 | gdb_assert (ops != NULL); | |
6411 | gdb_assert (ops->find_frame_base_location != NULL); | |
6412 | ||
6413 | return result; | |
6414 | } | |
6415 | ||
6416 | /* Register a register symbol type. ACLASS must be LOC_REGISTER or | |
6417 | LOC_REGPARM_ADDR. OPS is the register ops vector associated with | |
6418 | this index. This returns the new index, which should be used as | |
6419 | the aclass_index field for symbols of this type. */ | |
6420 | ||
6421 | int | |
6422 | register_symbol_register_impl (enum address_class aclass, | |
6423 | const struct symbol_register_ops *ops) | |
6424 | { | |
6425 | int result = next_aclass_value++; | |
6426 | ||
6427 | gdb_assert (aclass == LOC_REGISTER || aclass == LOC_REGPARM_ADDR); | |
6428 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6429 | symbol_impl[result].aclass = aclass; | |
6430 | symbol_impl[result].ops_register = ops; | |
6431 | ||
6432 | return result; | |
6433 | } | |
6434 | ||
6435 | /* Initialize elements of 'symbol_impl' for the constants in enum | |
6436 | address_class. */ | |
6437 | ||
6438 | static void | |
6439 | initialize_ordinary_address_classes (void) | |
6440 | { | |
6441 | int i; | |
6442 | ||
6443 | for (i = 0; i < LOC_FINAL_VALUE; ++i) | |
aead7601 | 6444 | symbol_impl[i].aclass = (enum address_class) i; |
f1e6e072 TT |
6445 | } |
6446 | ||
6447 | \f | |
6448 | ||
08be3fe3 DE |
6449 | /* See symtab.h. */ |
6450 | ||
6451 | struct objfile * | |
e19b2d94 | 6452 | symbol::objfile () const |
08be3fe3 | 6453 | { |
e19b2d94 TT |
6454 | gdb_assert (is_objfile_owned ()); |
6455 | return owner.symtab->compunit ()->objfile (); | |
08be3fe3 DE |
6456 | } |
6457 | ||
6458 | /* See symtab.h. */ | |
6459 | ||
6460 | struct gdbarch * | |
bcd6845e | 6461 | symbol::arch () const |
08be3fe3 | 6462 | { |
bcd6845e TT |
6463 | if (!is_objfile_owned ()) |
6464 | return owner.arch; | |
6465 | return owner.symtab->compunit ()->objfile ()->arch (); | |
08be3fe3 DE |
6466 | } |
6467 | ||
6468 | /* See symtab.h. */ | |
6469 | ||
6470 | struct symtab * | |
4206d69e | 6471 | symbol::symtab () const |
08be3fe3 | 6472 | { |
4206d69e TT |
6473 | gdb_assert (is_objfile_owned ()); |
6474 | return owner.symtab; | |
08be3fe3 DE |
6475 | } |
6476 | ||
6477 | /* See symtab.h. */ | |
6478 | ||
6479 | void | |
4206d69e | 6480 | symbol::set_symtab (struct symtab *symtab) |
08be3fe3 | 6481 | { |
4206d69e TT |
6482 | gdb_assert (is_objfile_owned ()); |
6483 | owner.symtab = symtab; | |
08be3fe3 DE |
6484 | } |
6485 | ||
4b610737 TT |
6486 | /* See symtab.h. */ |
6487 | ||
6488 | CORE_ADDR | |
6489 | get_symbol_address (const struct symbol *sym) | |
6490 | { | |
6491 | gdb_assert (sym->maybe_copied); | |
66d7f48f | 6492 | gdb_assert (sym->aclass () == LOC_STATIC); |
4b610737 | 6493 | |
987012b8 | 6494 | const char *linkage_name = sym->linkage_name (); |
4b610737 TT |
6495 | |
6496 | for (objfile *objfile : current_program_space->objfiles ()) | |
6497 | { | |
3e65b3e9 TT |
6498 | if (objfile->separate_debug_objfile_backlink != nullptr) |
6499 | continue; | |
6500 | ||
4b610737 TT |
6501 | bound_minimal_symbol minsym |
6502 | = lookup_minimal_symbol_linkage (linkage_name, objfile); | |
6503 | if (minsym.minsym != nullptr) | |
4aeddc50 | 6504 | return minsym.value_address (); |
4b610737 | 6505 | } |
4aeddc50 | 6506 | return sym->m_value.address; |
4b610737 TT |
6507 | } |
6508 | ||
6509 | /* See symtab.h. */ | |
6510 | ||
6511 | CORE_ADDR | |
6512 | get_msymbol_address (struct objfile *objf, const struct minimal_symbol *minsym) | |
6513 | { | |
6514 | gdb_assert (minsym->maybe_copied); | |
6515 | gdb_assert ((objf->flags & OBJF_MAINLINE) == 0); | |
6516 | ||
c9d95fa3 | 6517 | const char *linkage_name = minsym->linkage_name (); |
4b610737 TT |
6518 | |
6519 | for (objfile *objfile : current_program_space->objfiles ()) | |
6520 | { | |
3e65b3e9 TT |
6521 | if (objfile->separate_debug_objfile_backlink == nullptr |
6522 | && (objfile->flags & OBJF_MAINLINE) != 0) | |
4b610737 TT |
6523 | { |
6524 | bound_minimal_symbol found | |
6525 | = lookup_minimal_symbol_linkage (linkage_name, objfile); | |
6526 | if (found.minsym != nullptr) | |
4aeddc50 | 6527 | return found.value_address (); |
4b610737 TT |
6528 | } |
6529 | } | |
4aeddc50 | 6530 | return (minsym->m_value.address |
a52d653e | 6531 | + objf->section_offsets[minsym->section_index ()]); |
4b610737 TT |
6532 | } |
6533 | ||
e623cf5d TT |
6534 | \f |
6535 | ||
165f8965 AB |
6536 | /* Hold the sub-commands of 'info module'. */ |
6537 | ||
6538 | static struct cmd_list_element *info_module_cmdlist = NULL; | |
6539 | ||
165f8965 AB |
6540 | /* See symtab.h. */ |
6541 | ||
6542 | std::vector<module_symbol_search> | |
6543 | search_module_symbols (const char *module_regexp, const char *regexp, | |
6544 | const char *type_regexp, search_domain kind) | |
6545 | { | |
6546 | std::vector<module_symbol_search> results; | |
6547 | ||
6548 | /* Search for all modules matching MODULE_REGEXP. */ | |
470c0b1c AB |
6549 | global_symbol_searcher spec1 (MODULES_DOMAIN, module_regexp); |
6550 | spec1.set_exclude_minsyms (true); | |
6551 | std::vector<symbol_search> modules = spec1.search (); | |
165f8965 AB |
6552 | |
6553 | /* Now search for all symbols of the required KIND matching the required | |
6554 | regular expressions. We figure out which ones are in which modules | |
6555 | below. */ | |
470c0b1c AB |
6556 | global_symbol_searcher spec2 (kind, regexp); |
6557 | spec2.set_symbol_type_regexp (type_regexp); | |
6558 | spec2.set_exclude_minsyms (true); | |
6559 | std::vector<symbol_search> symbols = spec2.search (); | |
165f8965 AB |
6560 | |
6561 | /* Now iterate over all MODULES, checking to see which items from | |
6562 | SYMBOLS are in each module. */ | |
6563 | for (const symbol_search &p : modules) | |
6564 | { | |
6565 | QUIT; | |
6566 | ||
6567 | /* This is a module. */ | |
6568 | gdb_assert (p.symbol != nullptr); | |
6569 | ||
987012b8 | 6570 | std::string prefix = p.symbol->print_name (); |
165f8965 AB |
6571 | prefix += "::"; |
6572 | ||
6573 | for (const symbol_search &q : symbols) | |
6574 | { | |
6575 | if (q.symbol == nullptr) | |
6576 | continue; | |
6577 | ||
987012b8 | 6578 | if (strncmp (q.symbol->print_name (), prefix.c_str (), |
165f8965 AB |
6579 | prefix.size ()) != 0) |
6580 | continue; | |
6581 | ||
6582 | results.push_back ({p, q}); | |
6583 | } | |
6584 | } | |
6585 | ||
6586 | return results; | |
6587 | } | |
6588 | ||
6589 | /* Implement the core of both 'info module functions' and 'info module | |
6590 | variables'. */ | |
6591 | ||
6592 | static void | |
6593 | info_module_subcommand (bool quiet, const char *module_regexp, | |
6594 | const char *regexp, const char *type_regexp, | |
6595 | search_domain kind) | |
6596 | { | |
6597 | /* Print a header line. Don't build the header line bit by bit as this | |
6598 | prevents internationalisation. */ | |
6599 | if (!quiet) | |
6600 | { | |
6601 | if (module_regexp == nullptr) | |
6602 | { | |
6603 | if (type_regexp == nullptr) | |
6604 | { | |
6605 | if (regexp == nullptr) | |
6cb06a8c TT |
6606 | gdb_printf ((kind == VARIABLES_DOMAIN |
6607 | ? _("All variables in all modules:") | |
6608 | : _("All functions in all modules:"))); | |
165f8965 | 6609 | else |
6cb06a8c | 6610 | gdb_printf |
165f8965 AB |
6611 | ((kind == VARIABLES_DOMAIN |
6612 | ? _("All variables matching regular expression" | |
6613 | " \"%s\" in all modules:") | |
6614 | : _("All functions matching regular expression" | |
6615 | " \"%s\" in all modules:")), | |
6616 | regexp); | |
6617 | } | |
6618 | else | |
6619 | { | |
6620 | if (regexp == nullptr) | |
6cb06a8c | 6621 | gdb_printf |
165f8965 AB |
6622 | ((kind == VARIABLES_DOMAIN |
6623 | ? _("All variables with type matching regular " | |
6624 | "expression \"%s\" in all modules:") | |
6625 | : _("All functions with type matching regular " | |
6626 | "expression \"%s\" in all modules:")), | |
6627 | type_regexp); | |
6628 | else | |
6cb06a8c | 6629 | gdb_printf |
165f8965 AB |
6630 | ((kind == VARIABLES_DOMAIN |
6631 | ? _("All variables matching regular expression " | |
6632 | "\"%s\",\n\twith type matching regular " | |
6633 | "expression \"%s\" in all modules:") | |
6634 | : _("All functions matching regular expression " | |
6635 | "\"%s\",\n\twith type matching regular " | |
6636 | "expression \"%s\" in all modules:")), | |
6637 | regexp, type_regexp); | |
6638 | } | |
6639 | } | |
6640 | else | |
6641 | { | |
6642 | if (type_regexp == nullptr) | |
6643 | { | |
6644 | if (regexp == nullptr) | |
6cb06a8c | 6645 | gdb_printf |
165f8965 AB |
6646 | ((kind == VARIABLES_DOMAIN |
6647 | ? _("All variables in all modules matching regular " | |
6648 | "expression \"%s\":") | |
6649 | : _("All functions in all modules matching regular " | |
6650 | "expression \"%s\":")), | |
6651 | module_regexp); | |
6652 | else | |
6cb06a8c | 6653 | gdb_printf |
165f8965 AB |
6654 | ((kind == VARIABLES_DOMAIN |
6655 | ? _("All variables matching regular expression " | |
6656 | "\"%s\",\n\tin all modules matching regular " | |
6657 | "expression \"%s\":") | |
6658 | : _("All functions matching regular expression " | |
6659 | "\"%s\",\n\tin all modules matching regular " | |
6660 | "expression \"%s\":")), | |
6661 | regexp, module_regexp); | |
6662 | } | |
6663 | else | |
6664 | { | |
6665 | if (regexp == nullptr) | |
6cb06a8c | 6666 | gdb_printf |
165f8965 AB |
6667 | ((kind == VARIABLES_DOMAIN |
6668 | ? _("All variables with type matching regular " | |
6669 | "expression \"%s\"\n\tin all modules matching " | |
6670 | "regular expression \"%s\":") | |
6671 | : _("All functions with type matching regular " | |
6672 | "expression \"%s\"\n\tin all modules matching " | |
6673 | "regular expression \"%s\":")), | |
6674 | type_regexp, module_regexp); | |
6675 | else | |
6cb06a8c | 6676 | gdb_printf |
165f8965 AB |
6677 | ((kind == VARIABLES_DOMAIN |
6678 | ? _("All variables matching regular expression " | |
6679 | "\"%s\",\n\twith type matching regular expression " | |
6680 | "\"%s\",\n\tin all modules matching regular " | |
6681 | "expression \"%s\":") | |
6682 | : _("All functions matching regular expression " | |
6683 | "\"%s\",\n\twith type matching regular expression " | |
6684 | "\"%s\",\n\tin all modules matching regular " | |
6685 | "expression \"%s\":")), | |
6686 | regexp, type_regexp, module_regexp); | |
6687 | } | |
6688 | } | |
6cb06a8c | 6689 | gdb_printf ("\n"); |
165f8965 AB |
6690 | } |
6691 | ||
6692 | /* Find all symbols of type KIND matching the given regular expressions | |
6693 | along with the symbols for the modules in which those symbols | |
6694 | reside. */ | |
6695 | std::vector<module_symbol_search> module_symbols | |
6696 | = search_module_symbols (module_regexp, regexp, type_regexp, kind); | |
6697 | ||
6698 | std::sort (module_symbols.begin (), module_symbols.end (), | |
6699 | [] (const module_symbol_search &a, const module_symbol_search &b) | |
6700 | { | |
6701 | if (a.first < b.first) | |
6702 | return true; | |
6703 | else if (a.first == b.first) | |
6704 | return a.second < b.second; | |
6705 | else | |
6706 | return false; | |
6707 | }); | |
6708 | ||
6709 | const char *last_filename = ""; | |
6710 | const symbol *last_module_symbol = nullptr; | |
6711 | for (const module_symbol_search &ms : module_symbols) | |
6712 | { | |
6713 | const symbol_search &p = ms.first; | |
6714 | const symbol_search &q = ms.second; | |
6715 | ||
6716 | gdb_assert (q.symbol != nullptr); | |
6717 | ||
6718 | if (last_module_symbol != p.symbol) | |
6719 | { | |
6cb06a8c TT |
6720 | gdb_printf ("\n"); |
6721 | gdb_printf (_("Module \"%s\":\n"), p.symbol->print_name ()); | |
165f8965 AB |
6722 | last_module_symbol = p.symbol; |
6723 | last_filename = ""; | |
6724 | } | |
6725 | ||
6726 | print_symbol_info (FUNCTIONS_DOMAIN, q.symbol, q.block, | |
6727 | last_filename); | |
6728 | last_filename | |
4206d69e | 6729 | = symtab_to_filename_for_display (q.symbol->symtab ()); |
165f8965 AB |
6730 | } |
6731 | } | |
6732 | ||
6733 | /* Hold the option values for the 'info module .....' sub-commands. */ | |
6734 | ||
6735 | struct info_modules_var_func_options | |
6736 | { | |
6737 | bool quiet = false; | |
e0700ba4 SM |
6738 | std::string type_regexp; |
6739 | std::string module_regexp; | |
165f8965 AB |
6740 | }; |
6741 | ||
6742 | /* The options used by 'info module variables' and 'info module functions' | |
6743 | commands. */ | |
6744 | ||
6745 | static const gdb::option::option_def info_modules_var_func_options_defs [] = { | |
6746 | gdb::option::boolean_option_def<info_modules_var_func_options> { | |
6747 | "q", | |
6748 | [] (info_modules_var_func_options *opt) { return &opt->quiet; }, | |
6749 | nullptr, /* show_cmd_cb */ | |
6750 | nullptr /* set_doc */ | |
6751 | }, | |
6752 | ||
6753 | gdb::option::string_option_def<info_modules_var_func_options> { | |
6754 | "t", | |
6755 | [] (info_modules_var_func_options *opt) { return &opt->type_regexp; }, | |
6756 | nullptr, /* show_cmd_cb */ | |
6757 | nullptr /* set_doc */ | |
6758 | }, | |
6759 | ||
6760 | gdb::option::string_option_def<info_modules_var_func_options> { | |
6761 | "m", | |
6762 | [] (info_modules_var_func_options *opt) { return &opt->module_regexp; }, | |
6763 | nullptr, /* show_cmd_cb */ | |
6764 | nullptr /* set_doc */ | |
6765 | } | |
6766 | }; | |
6767 | ||
6768 | /* Return the option group used by the 'info module ...' sub-commands. */ | |
6769 | ||
6770 | static inline gdb::option::option_def_group | |
6771 | make_info_modules_var_func_options_def_group | |
6772 | (info_modules_var_func_options *opts) | |
6773 | { | |
6774 | return {{info_modules_var_func_options_defs}, opts}; | |
6775 | } | |
6776 | ||
6777 | /* Implements the 'info module functions' command. */ | |
6778 | ||
6779 | static void | |
6780 | info_module_functions_command (const char *args, int from_tty) | |
6781 | { | |
6782 | info_modules_var_func_options opts; | |
6783 | auto grp = make_info_modules_var_func_options_def_group (&opts); | |
6784 | gdb::option::process_options | |
6785 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
6786 | if (args != nullptr && *args == '\0') | |
6787 | args = nullptr; | |
6788 | ||
e0700ba4 SM |
6789 | info_module_subcommand |
6790 | (opts.quiet, | |
6791 | opts.module_regexp.empty () ? nullptr : opts.module_regexp.c_str (), args, | |
6792 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
6793 | FUNCTIONS_DOMAIN); | |
165f8965 AB |
6794 | } |
6795 | ||
6796 | /* Implements the 'info module variables' command. */ | |
6797 | ||
6798 | static void | |
6799 | info_module_variables_command (const char *args, int from_tty) | |
6800 | { | |
6801 | info_modules_var_func_options opts; | |
6802 | auto grp = make_info_modules_var_func_options_def_group (&opts); | |
6803 | gdb::option::process_options | |
6804 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
6805 | if (args != nullptr && *args == '\0') | |
6806 | args = nullptr; | |
6807 | ||
e0700ba4 SM |
6808 | info_module_subcommand |
6809 | (opts.quiet, | |
6810 | opts.module_regexp.empty () ? nullptr : opts.module_regexp.c_str (), args, | |
6811 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
6812 | VARIABLES_DOMAIN); | |
165f8965 AB |
6813 | } |
6814 | ||
6815 | /* Command completer for 'info module ...' sub-commands. */ | |
6816 | ||
6817 | static void | |
6818 | info_module_var_func_command_completer (struct cmd_list_element *ignore, | |
6819 | completion_tracker &tracker, | |
6820 | const char *text, | |
6821 | const char * /* word */) | |
6822 | { | |
6823 | ||
6824 | const auto group = make_info_modules_var_func_options_def_group (nullptr); | |
6825 | if (gdb::option::complete_options | |
6826 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
6827 | return; | |
6828 | ||
6829 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
6830 | symbol_completer (ignore, tracker, text, word); | |
6831 | } | |
6832 | ||
6833 | \f | |
6834 | ||
6c265988 | 6835 | void _initialize_symtab (); |
c906108c | 6836 | void |
6c265988 | 6837 | _initialize_symtab () |
c906108c | 6838 | { |
60cfcb20 AB |
6839 | cmd_list_element *c; |
6840 | ||
f1e6e072 TT |
6841 | initialize_ordinary_address_classes (); |
6842 | ||
60cfcb20 AB |
6843 | c = add_info ("variables", info_variables_command, |
6844 | info_print_args_help (_("\ | |
12615cba | 6845 | All global and static variable names or those matching REGEXPs.\n\ |
4acfdd20 | 6846 | Usage: info variables [-q] [-n] [-t TYPEREGEXP] [NAMEREGEXP]\n\ |
12615cba | 6847 | Prints the global and static variables.\n"), |
4acfdd20 AB |
6848 | _("global and static variables"), |
6849 | true)); | |
095252be | 6850 | set_cmd_completer_handle_brkchars (c, info_vars_funcs_command_completer); |
c906108c | 6851 | |
60cfcb20 AB |
6852 | c = add_info ("functions", info_functions_command, |
6853 | info_print_args_help (_("\ | |
12615cba | 6854 | All function names or those matching REGEXPs.\n\ |
4acfdd20 | 6855 | Usage: info functions [-q] [-n] [-t TYPEREGEXP] [NAMEREGEXP]\n\ |
12615cba | 6856 | Prints the functions.\n"), |
4acfdd20 AB |
6857 | _("functions"), |
6858 | true)); | |
095252be | 6859 | set_cmd_completer_handle_brkchars (c, info_vars_funcs_command_completer); |
c906108c | 6860 | |
a8eab7c6 AB |
6861 | c = add_info ("types", info_types_command, _("\ |
6862 | All type names, or those matching REGEXP.\n\ | |
6863 | Usage: info types [-q] [REGEXP]\n\ | |
6864 | Print information about all types matching REGEXP, or all types if no\n\ | |
6865 | REGEXP is given. The optional flag -q disables printing of headers.")); | |
6866 | set_cmd_completer_handle_brkchars (c, info_types_command_completer); | |
c906108c | 6867 | |
0e350a05 AB |
6868 | const auto info_sources_opts |
6869 | = make_info_sources_options_def_group (nullptr); | |
28cd9371 PW |
6870 | |
6871 | static std::string info_sources_help | |
6872 | = gdb::option::build_help (_("\ | |
6873 | All source files in the program or those matching REGEXP.\n\ | |
6874 | Usage: info sources [OPTION]... [REGEXP]\n\ | |
6875 | By default, REGEXP is used to match anywhere in the filename.\n\ | |
6876 | \n\ | |
6877 | Options:\n\ | |
6878 | %OPTIONS%"), | |
6879 | info_sources_opts); | |
6880 | ||
6881 | c = add_info ("sources", info_sources_command, info_sources_help.c_str ()); | |
6882 | set_cmd_completer_handle_brkchars (c, info_sources_command_completer); | |
c906108c | 6883 | |
59c35742 AB |
6884 | c = add_info ("modules", info_modules_command, |
6885 | _("All module names, or those matching REGEXP.")); | |
6886 | set_cmd_completer_handle_brkchars (c, info_types_command_completer); | |
6887 | ||
0743fc83 | 6888 | add_basic_prefix_cmd ("module", class_info, _("\ |
165f8965 | 6889 | Print information about modules."), |
2f822da5 | 6890 | &info_module_cmdlist, 0, &infolist); |
165f8965 AB |
6891 | |
6892 | c = add_cmd ("functions", class_info, info_module_functions_command, _("\ | |
6893 | Display functions arranged by modules.\n\ | |
6894 | Usage: info module functions [-q] [-m MODREGEXP] [-t TYPEREGEXP] [REGEXP]\n\ | |
6895 | Print a summary of all functions within each Fortran module, grouped by\n\ | |
6896 | module and file. For each function the line on which the function is\n\ | |
6897 | defined is given along with the type signature and name of the function.\n\ | |
6898 | \n\ | |
6899 | If REGEXP is provided then only functions whose name matches REGEXP are\n\ | |
6900 | listed. If MODREGEXP is provided then only functions in modules matching\n\ | |
6901 | MODREGEXP are listed. If TYPEREGEXP is given then only functions whose\n\ | |
6902 | type signature matches TYPEREGEXP are listed.\n\ | |
6903 | \n\ | |
6904 | The -q flag suppresses printing some header information."), | |
6905 | &info_module_cmdlist); | |
6906 | set_cmd_completer_handle_brkchars | |
6907 | (c, info_module_var_func_command_completer); | |
6908 | ||
6909 | c = add_cmd ("variables", class_info, info_module_variables_command, _("\ | |
6910 | Display variables arranged by modules.\n\ | |
6911 | Usage: info module variables [-q] [-m MODREGEXP] [-t TYPEREGEXP] [REGEXP]\n\ | |
6912 | Print a summary of all variables within each Fortran module, grouped by\n\ | |
6913 | module and file. For each variable the line on which the variable is\n\ | |
6914 | defined is given along with the type and name of the variable.\n\ | |
6915 | \n\ | |
6916 | If REGEXP is provided then only variables whose name matches REGEXP are\n\ | |
6917 | listed. If MODREGEXP is provided then only variables in modules matching\n\ | |
6918 | MODREGEXP are listed. If TYPEREGEXP is given then only variables whose\n\ | |
6919 | type matches TYPEREGEXP are listed.\n\ | |
6920 | \n\ | |
6921 | The -q flag suppresses printing some header information."), | |
6922 | &info_module_cmdlist); | |
6923 | set_cmd_completer_handle_brkchars | |
6924 | (c, info_module_var_func_command_completer); | |
6925 | ||
c906108c | 6926 | add_com ("rbreak", class_breakpoint, rbreak_command, |
1bedd215 | 6927 | _("Set a breakpoint for all functions matching REGEXP.")); |
c906108c | 6928 | |
717d2f5a | 6929 | add_setshow_enum_cmd ("multiple-symbols", no_class, |
dda83cd7 SM |
6930 | multiple_symbols_modes, &multiple_symbols_mode, |
6931 | _("\ | |
590042fc | 6932 | Set how the debugger handles ambiguities in expressions."), _("\ |
717d2f5a JB |
6933 | Show how the debugger handles ambiguities in expressions."), _("\ |
6934 | Valid values are \"ask\", \"all\", \"cancel\", and the default is \"all\"."), | |
dda83cd7 | 6935 | NULL, NULL, &setlist, &showlist); |
717d2f5a | 6936 | |
c011a4f4 DE |
6937 | add_setshow_boolean_cmd ("basenames-may-differ", class_obscure, |
6938 | &basenames_may_differ, _("\ | |
6939 | Set whether a source file may have multiple base names."), _("\ | |
6940 | Show whether a source file may have multiple base names."), _("\ | |
6941 | (A \"base name\" is the name of a file with the directory part removed.\n\ | |
6942 | Example: The base name of \"/home/user/hello.c\" is \"hello.c\".)\n\ | |
6943 | If set, GDB will canonicalize file names (e.g., expand symlinks)\n\ | |
6944 | before comparing them. Canonicalization is an expensive operation,\n\ | |
6945 | but it allows the same file be known by more than one base name.\n\ | |
6946 | If not set (the default), all source files are assumed to have just\n\ | |
6947 | one base name, and gdb will do file name comparisons more efficiently."), | |
6948 | NULL, NULL, | |
6949 | &setlist, &showlist); | |
6950 | ||
db0fec5c DE |
6951 | add_setshow_zuinteger_cmd ("symtab-create", no_class, &symtab_create_debug, |
6952 | _("Set debugging of symbol table creation."), | |
6953 | _("Show debugging of symbol table creation."), _("\ | |
6954 | When enabled (non-zero), debugging messages are printed when building\n\ | |
6955 | symbol tables. A value of 1 (one) normally provides enough information.\n\ | |
6956 | A value greater than 1 provides more verbose information."), | |
6957 | NULL, | |
6958 | NULL, | |
6959 | &setdebuglist, &showdebuglist); | |
45cfd468 | 6960 | |
cc485e62 DE |
6961 | add_setshow_zuinteger_cmd ("symbol-lookup", no_class, &symbol_lookup_debug, |
6962 | _("\ | |
6963 | Set debugging of symbol lookup."), _("\ | |
6964 | Show debugging of symbol lookup."), _("\ | |
6965 | When enabled (non-zero), symbol lookups are logged."), | |
6966 | NULL, NULL, | |
6967 | &setdebuglist, &showdebuglist); | |
6968 | ||
f57d2163 DE |
6969 | add_setshow_zuinteger_cmd ("symbol-cache-size", no_class, |
6970 | &new_symbol_cache_size, | |
6971 | _("Set the size of the symbol cache."), | |
6972 | _("Show the size of the symbol cache."), _("\ | |
6973 | The size of the symbol cache.\n\ | |
6974 | If zero then the symbol cache is disabled."), | |
6975 | set_symbol_cache_size_handler, NULL, | |
6976 | &maintenance_set_cmdlist, | |
6977 | &maintenance_show_cmdlist); | |
6978 | ||
6109f7a3 LS |
6979 | add_setshow_boolean_cmd ("ignore-prologue-end-flag", no_class, |
6980 | &ignore_prologue_end_flag, | |
6981 | _("Set if the PROLOGUE-END flag is ignored."), | |
6982 | _("Show if the PROLOGUE-END flag is ignored."), | |
6983 | _("\ | |
6984 | The PROLOGUE-END flag from the line-table entries is used to place \ | |
6985 | breakpoints past the prologue of functions. Disabeling its use use forces \ | |
6986 | the use of prologue scanners."), | |
6987 | nullptr, nullptr, | |
6988 | &maintenance_set_cmdlist, | |
6989 | &maintenance_show_cmdlist); | |
6990 | ||
6991 | ||
f57d2163 DE |
6992 | add_cmd ("symbol-cache", class_maintenance, maintenance_print_symbol_cache, |
6993 | _("Dump the symbol cache for each program space."), | |
6994 | &maintenanceprintlist); | |
6995 | ||
6996 | add_cmd ("symbol-cache-statistics", class_maintenance, | |
6997 | maintenance_print_symbol_cache_statistics, | |
6998 | _("Print symbol cache statistics for each program space."), | |
6999 | &maintenanceprintlist); | |
7000 | ||
5e84b7ee SM |
7001 | cmd_list_element *maintenance_flush_symbol_cache_cmd |
7002 | = add_cmd ("symbol-cache", class_maintenance, | |
7003 | maintenance_flush_symbol_cache, | |
7004 | _("Flush the symbol cache for each program space."), | |
7005 | &maintenanceflushlist); | |
7006 | c = add_alias_cmd ("flush-symbol-cache", maintenance_flush_symbol_cache_cmd, | |
50a5f187 AB |
7007 | class_maintenance, 0, &maintenancelist); |
7008 | deprecate_cmd (c, "maintenancelist flush symbol-cache"); | |
f57d2163 | 7009 | |
c90e7d63 SM |
7010 | gdb::observers::executable_changed.attach (symtab_observer_executable_changed, |
7011 | "symtab"); | |
7012 | gdb::observers::new_objfile.attach (symtab_new_objfile_observer, "symtab"); | |
7013 | gdb::observers::free_objfile.attach (symtab_free_objfile_observer, "symtab"); | |
c906108c | 7014 | } |