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c906108c | 1 | /* Symbol table lookup for the GNU debugger, GDB. |
8926118c | 2 | |
4a94e368 | 3 | Copyright (C) 1986-2022 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
19 | |
20 | #include "defs.h" | |
21 | #include "symtab.h" | |
22 | #include "gdbtypes.h" | |
23 | #include "gdbcore.h" | |
24 | #include "frame.h" | |
25 | #include "target.h" | |
26 | #include "value.h" | |
27 | #include "symfile.h" | |
28 | #include "objfiles.h" | |
29 | #include "gdbcmd.h" | |
d322d6d6 | 30 | #include "gdbsupport/gdb_regex.h" |
c906108c SS |
31 | #include "expression.h" |
32 | #include "language.h" | |
33 | #include "demangle.h" | |
34 | #include "inferior.h" | |
0378c332 | 35 | #include "source.h" |
a7fdf62f | 36 | #include "filenames.h" /* for FILENAME_CMP */ |
1bae87b9 | 37 | #include "objc-lang.h" |
6aecb9c2 | 38 | #include "d-lang.h" |
1f8173e6 | 39 | #include "ada-lang.h" |
a766d390 | 40 | #include "go-lang.h" |
cd6c7346 | 41 | #include "p-lang.h" |
ff013f42 | 42 | #include "addrmap.h" |
529480d0 | 43 | #include "cli/cli-utils.h" |
1ed9f74e | 44 | #include "cli/cli-style.h" |
50a5f187 | 45 | #include "cli/cli-cmds.h" |
cce0e923 | 46 | #include "fnmatch.h" |
2de7ced7 | 47 | #include "hashtab.h" |
12615cba | 48 | #include "typeprint.h" |
2de7ced7 | 49 | |
bf31fd38 | 50 | #include "gdbsupport/gdb_obstack.h" |
fe898f56 | 51 | #include "block.h" |
de4f826b | 52 | #include "dictionary.h" |
c906108c SS |
53 | |
54 | #include <sys/types.h> | |
55 | #include <fcntl.h> | |
53ce3c39 | 56 | #include <sys/stat.h> |
c906108c | 57 | #include <ctype.h> |
015a42b4 | 58 | #include "cp-abi.h" |
71c25dea | 59 | #include "cp-support.h" |
76727919 | 60 | #include "observable.h" |
3a40aaa0 | 61 | #include "solist.h" |
9a044a89 TT |
62 | #include "macrotab.h" |
63 | #include "macroscope.h" | |
c906108c | 64 | |
270140bd | 65 | #include "parser-defs.h" |
ef0b411a | 66 | #include "completer.h" |
5ed8105e | 67 | #include "progspace-and-thread.h" |
268a13a5 | 68 | #include "gdbsupport/gdb_optional.h" |
bbf2f4df | 69 | #include "filename-seen-cache.h" |
46a62268 | 70 | #include "arch-utils.h" |
b9c04fb2 | 71 | #include <algorithm> |
7bb43059 | 72 | #include "gdbsupport/gdb_string_view.h" |
268a13a5 | 73 | #include "gdbsupport/pathstuff.h" |
1a6ff1a9 | 74 | #include "gdbsupport/common-utils.h" |
ccefe4c4 | 75 | |
ff6c39cf | 76 | /* Forward declarations for local functions. */ |
c906108c | 77 | |
0b39b52e | 78 | static void rbreak_command (const char *, int); |
c906108c | 79 | |
f8eba3c6 | 80 | static int find_line_common (struct linetable *, int, int *, int); |
c906108c | 81 | |
d12307c1 PMR |
82 | static struct block_symbol |
83 | lookup_symbol_aux (const char *name, | |
de63c46b | 84 | symbol_name_match_type match_type, |
d12307c1 PMR |
85 | const struct block *block, |
86 | const domain_enum domain, | |
87 | enum language language, | |
88 | struct field_of_this_result *); | |
fba7f19c | 89 | |
e4051eeb | 90 | static |
d12307c1 | 91 | struct block_symbol lookup_local_symbol (const char *name, |
de63c46b | 92 | symbol_name_match_type match_type, |
d12307c1 PMR |
93 | const struct block *block, |
94 | const domain_enum domain, | |
95 | enum language language); | |
8155455b | 96 | |
d12307c1 | 97 | static struct block_symbol |
c32e6a04 CB |
98 | lookup_symbol_in_objfile (struct objfile *objfile, |
99 | enum block_enum block_index, | |
fe2a438d | 100 | const char *name, const domain_enum domain); |
c906108c | 101 | |
32ac0d11 TT |
102 | /* Type of the data stored on the program space. */ |
103 | ||
104 | struct main_info | |
105 | { | |
a32ad8c5 TT |
106 | main_info () = default; |
107 | ||
108 | ~main_info () | |
109 | { | |
110 | xfree (name_of_main); | |
111 | } | |
112 | ||
32ac0d11 TT |
113 | /* Name of "main". */ |
114 | ||
a32ad8c5 | 115 | char *name_of_main = nullptr; |
32ac0d11 TT |
116 | |
117 | /* Language of "main". */ | |
118 | ||
a32ad8c5 | 119 | enum language language_of_main = language_unknown; |
32ac0d11 TT |
120 | }; |
121 | ||
a32ad8c5 TT |
122 | /* Program space key for finding name and language of "main". */ |
123 | ||
08b8a139 | 124 | static const registry<program_space>::key<main_info> main_progspace_key; |
a32ad8c5 | 125 | |
f57d2163 DE |
126 | /* The default symbol cache size. |
127 | There is no extra cpu cost for large N (except when flushing the cache, | |
128 | which is rare). The value here is just a first attempt. A better default | |
129 | value may be higher or lower. A prime number can make up for a bad hash | |
130 | computation, so that's why the number is what it is. */ | |
131 | #define DEFAULT_SYMBOL_CACHE_SIZE 1021 | |
132 | ||
133 | /* The maximum symbol cache size. | |
134 | There's no method to the decision of what value to use here, other than | |
135 | there's no point in allowing a user typo to make gdb consume all memory. */ | |
136 | #define MAX_SYMBOL_CACHE_SIZE (1024*1024) | |
137 | ||
138 | /* symbol_cache_lookup returns this if a previous lookup failed to find the | |
139 | symbol in any objfile. */ | |
d12307c1 PMR |
140 | #define SYMBOL_LOOKUP_FAILED \ |
141 | ((struct block_symbol) {(struct symbol *) 1, NULL}) | |
142 | #define SYMBOL_LOOKUP_FAILED_P(SIB) (SIB.symbol == (struct symbol *) 1) | |
f57d2163 DE |
143 | |
144 | /* Recording lookups that don't find the symbol is just as important, if not | |
145 | more so, than recording found symbols. */ | |
146 | ||
147 | enum symbol_cache_slot_state | |
148 | { | |
149 | SYMBOL_SLOT_UNUSED, | |
150 | SYMBOL_SLOT_NOT_FOUND, | |
151 | SYMBOL_SLOT_FOUND | |
152 | }; | |
153 | ||
52059ffd TT |
154 | struct symbol_cache_slot |
155 | { | |
156 | enum symbol_cache_slot_state state; | |
157 | ||
158 | /* The objfile that was current when the symbol was looked up. | |
159 | This is only needed for global blocks, but for simplicity's sake | |
160 | we allocate the space for both. If data shows the extra space used | |
161 | for static blocks is a problem, we can split things up then. | |
162 | ||
163 | Global blocks need cache lookup to include the objfile context because | |
164 | we need to account for gdbarch_iterate_over_objfiles_in_search_order | |
165 | which can traverse objfiles in, effectively, any order, depending on | |
166 | the current objfile, thus affecting which symbol is found. Normally, | |
167 | only the current objfile is searched first, and then the rest are | |
168 | searched in recorded order; but putting cache lookup inside | |
169 | gdbarch_iterate_over_objfiles_in_search_order would be awkward. | |
170 | Instead we just make the current objfile part of the context of | |
171 | cache lookup. This means we can record the same symbol multiple times, | |
172 | each with a different "current objfile" that was in effect when the | |
173 | lookup was saved in the cache, but cache space is pretty cheap. */ | |
174 | const struct objfile *objfile_context; | |
175 | ||
176 | union | |
177 | { | |
d12307c1 | 178 | struct block_symbol found; |
52059ffd TT |
179 | struct |
180 | { | |
181 | char *name; | |
182 | domain_enum domain; | |
183 | } not_found; | |
184 | } value; | |
185 | }; | |
186 | ||
82f910ea PW |
187 | /* Clear out SLOT. */ |
188 | ||
189 | static void | |
190 | symbol_cache_clear_slot (struct symbol_cache_slot *slot) | |
191 | { | |
192 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
193 | xfree (slot->value.not_found.name); | |
194 | slot->state = SYMBOL_SLOT_UNUSED; | |
195 | } | |
196 | ||
f57d2163 DE |
197 | /* Symbols don't specify global vs static block. |
198 | So keep them in separate caches. */ | |
199 | ||
200 | struct block_symbol_cache | |
201 | { | |
202 | unsigned int hits; | |
203 | unsigned int misses; | |
204 | unsigned int collisions; | |
205 | ||
206 | /* SYMBOLS is a variable length array of this size. | |
207 | One can imagine that in general one cache (global/static) should be a | |
208 | fraction of the size of the other, but there's no data at the moment | |
209 | on which to decide. */ | |
210 | unsigned int size; | |
211 | ||
52059ffd | 212 | struct symbol_cache_slot symbols[1]; |
f57d2163 DE |
213 | }; |
214 | ||
82f910ea PW |
215 | /* Clear all slots of BSC and free BSC. */ |
216 | ||
217 | static void | |
218 | destroy_block_symbol_cache (struct block_symbol_cache *bsc) | |
219 | { | |
220 | if (bsc != nullptr) | |
221 | { | |
222 | for (unsigned int i = 0; i < bsc->size; i++) | |
223 | symbol_cache_clear_slot (&bsc->symbols[i]); | |
224 | xfree (bsc); | |
225 | } | |
226 | } | |
227 | ||
f57d2163 DE |
228 | /* The symbol cache. |
229 | ||
230 | Searching for symbols in the static and global blocks over multiple objfiles | |
231 | again and again can be slow, as can searching very big objfiles. This is a | |
232 | simple cache to improve symbol lookup performance, which is critical to | |
233 | overall gdb performance. | |
234 | ||
235 | Symbols are hashed on the name, its domain, and block. | |
236 | They are also hashed on their objfile for objfile-specific lookups. */ | |
237 | ||
238 | struct symbol_cache | |
239 | { | |
3017b94d TT |
240 | symbol_cache () = default; |
241 | ||
242 | ~symbol_cache () | |
243 | { | |
82f910ea PW |
244 | destroy_block_symbol_cache (global_symbols); |
245 | destroy_block_symbol_cache (static_symbols); | |
3017b94d TT |
246 | } |
247 | ||
248 | struct block_symbol_cache *global_symbols = nullptr; | |
249 | struct block_symbol_cache *static_symbols = nullptr; | |
f57d2163 DE |
250 | }; |
251 | ||
3017b94d TT |
252 | /* Program space key for finding its symbol cache. */ |
253 | ||
08b8a139 | 254 | static const registry<program_space>::key<symbol_cache> symbol_cache_key; |
3017b94d | 255 | |
45cfd468 | 256 | /* When non-zero, print debugging messages related to symtab creation. */ |
db0fec5c | 257 | unsigned int symtab_create_debug = 0; |
45cfd468 | 258 | |
cc485e62 DE |
259 | /* When non-zero, print debugging messages related to symbol lookup. */ |
260 | unsigned int symbol_lookup_debug = 0; | |
261 | ||
f57d2163 DE |
262 | /* The size of the cache is staged here. */ |
263 | static unsigned int new_symbol_cache_size = DEFAULT_SYMBOL_CACHE_SIZE; | |
264 | ||
265 | /* The current value of the symbol cache size. | |
266 | This is saved so that if the user enters a value too big we can restore | |
267 | the original value from here. */ | |
268 | static unsigned int symbol_cache_size = DEFAULT_SYMBOL_CACHE_SIZE; | |
269 | ||
491144b5 | 270 | /* True if a file may be known by two different basenames. |
c011a4f4 DE |
271 | This is the uncommon case, and significantly slows down gdb. |
272 | Default set to "off" to not slow down the common case. */ | |
491144b5 | 273 | bool basenames_may_differ = false; |
c011a4f4 | 274 | |
717d2f5a JB |
275 | /* Allow the user to configure the debugger behavior with respect |
276 | to multiple-choice menus when more than one symbol matches during | |
277 | a symbol lookup. */ | |
278 | ||
7fc830e2 MK |
279 | const char multiple_symbols_ask[] = "ask"; |
280 | const char multiple_symbols_all[] = "all"; | |
281 | const char multiple_symbols_cancel[] = "cancel"; | |
40478521 | 282 | static const char *const multiple_symbols_modes[] = |
717d2f5a JB |
283 | { |
284 | multiple_symbols_ask, | |
285 | multiple_symbols_all, | |
286 | multiple_symbols_cancel, | |
287 | NULL | |
288 | }; | |
289 | static const char *multiple_symbols_mode = multiple_symbols_all; | |
290 | ||
6109f7a3 LS |
291 | /* When TRUE, ignore the prologue-end flag in linetable_entry when searching |
292 | for the SAL past a function prologue. */ | |
293 | static bool ignore_prologue_end_flag = false; | |
294 | ||
717d2f5a JB |
295 | /* Read-only accessor to AUTO_SELECT_MODE. */ |
296 | ||
297 | const char * | |
298 | multiple_symbols_select_mode (void) | |
299 | { | |
300 | return multiple_symbols_mode; | |
301 | } | |
302 | ||
20c681d1 DE |
303 | /* Return the name of a domain_enum. */ |
304 | ||
305 | const char * | |
306 | domain_name (domain_enum e) | |
307 | { | |
308 | switch (e) | |
309 | { | |
310 | case UNDEF_DOMAIN: return "UNDEF_DOMAIN"; | |
311 | case VAR_DOMAIN: return "VAR_DOMAIN"; | |
312 | case STRUCT_DOMAIN: return "STRUCT_DOMAIN"; | |
540feddf | 313 | case MODULE_DOMAIN: return "MODULE_DOMAIN"; |
20c681d1 DE |
314 | case LABEL_DOMAIN: return "LABEL_DOMAIN"; |
315 | case COMMON_BLOCK_DOMAIN: return "COMMON_BLOCK_DOMAIN"; | |
316 | default: gdb_assert_not_reached ("bad domain_enum"); | |
317 | } | |
318 | } | |
319 | ||
320 | /* Return the name of a search_domain . */ | |
321 | ||
322 | const char * | |
323 | search_domain_name (enum search_domain e) | |
324 | { | |
325 | switch (e) | |
326 | { | |
327 | case VARIABLES_DOMAIN: return "VARIABLES_DOMAIN"; | |
328 | case FUNCTIONS_DOMAIN: return "FUNCTIONS_DOMAIN"; | |
329 | case TYPES_DOMAIN: return "TYPES_DOMAIN"; | |
59c35742 | 330 | case MODULES_DOMAIN: return "MODULES_DOMAIN"; |
20c681d1 DE |
331 | case ALL_DOMAIN: return "ALL_DOMAIN"; |
332 | default: gdb_assert_not_reached ("bad search_domain"); | |
333 | } | |
334 | } | |
335 | ||
43f3e411 | 336 | /* See symtab.h. */ |
db0fec5c | 337 | |
b625c770 SM |
338 | call_site * |
339 | compunit_symtab::find_call_site (CORE_ADDR pc) const | |
340 | { | |
341 | if (m_call_site_htab == nullptr) | |
342 | return nullptr; | |
343 | ||
b0b8879e | 344 | CORE_ADDR delta |
c1e35bc9 | 345 | = this->objfile ()->section_offsets[this->block_line_section ()]; |
b0b8879e SM |
346 | CORE_ADDR unrelocated_pc = pc - delta; |
347 | ||
348 | struct call_site call_site_local (unrelocated_pc, nullptr, nullptr); | |
0dd8295d TV |
349 | void **slot |
350 | = htab_find_slot (m_call_site_htab, &call_site_local, NO_INSERT); | |
b625c770 SM |
351 | if (slot == nullptr) |
352 | return nullptr; | |
353 | ||
354 | return (call_site *) *slot; | |
355 | } | |
356 | ||
357 | /* See symtab.h. */ | |
358 | ||
359 | void | |
360 | compunit_symtab::set_call_site_htab (htab_t call_site_htab) | |
361 | { | |
362 | gdb_assert (m_call_site_htab == nullptr); | |
363 | m_call_site_htab = call_site_htab; | |
364 | } | |
365 | ||
366 | /* See symtab.h. */ | |
367 | ||
36664835 SM |
368 | void |
369 | compunit_symtab::set_primary_filetab (symtab *primary_filetab) | |
370 | { | |
371 | symtab *prev_filetab = nullptr; | |
372 | ||
373 | /* Move PRIMARY_FILETAB to the head of the filetab list. */ | |
102cc235 | 374 | for (symtab *filetab : this->filetabs ()) |
36664835 SM |
375 | { |
376 | if (filetab == primary_filetab) | |
377 | { | |
378 | if (prev_filetab != nullptr) | |
379 | { | |
380 | prev_filetab->next = primary_filetab->next; | |
102cc235 SM |
381 | primary_filetab->next = m_filetabs; |
382 | m_filetabs = primary_filetab; | |
36664835 SM |
383 | } |
384 | ||
385 | break; | |
386 | } | |
387 | ||
388 | prev_filetab = filetab; | |
389 | } | |
390 | ||
102cc235 | 391 | gdb_assert (primary_filetab == m_filetabs); |
36664835 SM |
392 | } |
393 | ||
394 | /* See symtab.h. */ | |
395 | ||
43f3e411 | 396 | struct symtab * |
0b17a4f7 | 397 | compunit_symtab::primary_filetab () const |
db0fec5c | 398 | { |
102cc235 | 399 | gdb_assert (m_filetabs != nullptr); |
db0fec5c | 400 | |
43f3e411 | 401 | /* The primary file symtab is the first one in the list. */ |
102cc235 | 402 | return m_filetabs; |
43f3e411 DE |
403 | } |
404 | ||
405 | /* See symtab.h. */ | |
406 | ||
407 | enum language | |
408 | compunit_language (const struct compunit_symtab *cust) | |
409 | { | |
0b17a4f7 | 410 | struct symtab *symtab = cust->primary_filetab (); |
43f3e411 DE |
411 | |
412 | /* The language of the compunit symtab is the language of its primary | |
413 | source file. */ | |
1ee2e9f9 | 414 | return symtab->language (); |
db0fec5c DE |
415 | } |
416 | ||
4aeddc50 SM |
417 | /* The relocated address of the minimal symbol, using the section |
418 | offsets from OBJFILE. */ | |
419 | ||
420 | CORE_ADDR | |
421 | minimal_symbol::value_address (objfile *objfile) const | |
422 | { | |
423 | if (this->maybe_copied) | |
424 | return get_msymbol_address (objfile, this); | |
425 | else | |
426 | return (this->value_raw_address () | |
427 | + objfile->section_offsets[this->section_index ()]); | |
428 | } | |
429 | ||
1ed9f74e PW |
430 | /* See symtab.h. */ |
431 | ||
432 | bool | |
433 | minimal_symbol::data_p () const | |
434 | { | |
60f62e2b SM |
435 | return m_type == mst_data |
436 | || m_type == mst_bss | |
437 | || m_type == mst_abs | |
438 | || m_type == mst_file_data | |
439 | || m_type == mst_file_bss; | |
1ed9f74e PW |
440 | } |
441 | ||
442 | /* See symtab.h. */ | |
443 | ||
444 | bool | |
445 | minimal_symbol::text_p () const | |
446 | { | |
60f62e2b SM |
447 | return m_type == mst_text |
448 | || m_type == mst_text_gnu_ifunc | |
449 | || m_type == mst_data_gnu_ifunc | |
450 | || m_type == mst_slot_got_plt | |
451 | || m_type == mst_solib_trampoline | |
452 | || m_type == mst_file_text; | |
1ed9f74e PW |
453 | } |
454 | ||
4aac40c8 TT |
455 | /* See whether FILENAME matches SEARCH_NAME using the rule that we |
456 | advertise to the user. (The manual's description of linespecs | |
af529f8f JK |
457 | describes what we advertise). Returns true if they match, false |
458 | otherwise. */ | |
4aac40c8 | 459 | |
ececd218 | 460 | bool |
b57a636e | 461 | compare_filenames_for_search (const char *filename, const char *search_name) |
4aac40c8 TT |
462 | { |
463 | int len = strlen (filename); | |
b57a636e | 464 | size_t search_len = strlen (search_name); |
4aac40c8 TT |
465 | |
466 | if (len < search_len) | |
ececd218 | 467 | return false; |
4aac40c8 TT |
468 | |
469 | /* The tail of FILENAME must match. */ | |
470 | if (FILENAME_CMP (filename + len - search_len, search_name) != 0) | |
ececd218 | 471 | return false; |
4aac40c8 TT |
472 | |
473 | /* Either the names must completely match, or the character | |
474 | preceding the trailing SEARCH_NAME segment of FILENAME must be a | |
d84fca2c JK |
475 | directory separator. |
476 | ||
af529f8f JK |
477 | The check !IS_ABSOLUTE_PATH ensures SEARCH_NAME "/dir/file.c" |
478 | cannot match FILENAME "/path//dir/file.c" - as user has requested | |
479 | absolute path. The sama applies for "c:\file.c" possibly | |
480 | incorrectly hypothetically matching "d:\dir\c:\file.c". | |
481 | ||
d84fca2c JK |
482 | The HAS_DRIVE_SPEC purpose is to make FILENAME "c:file.c" |
483 | compatible with SEARCH_NAME "file.c". In such case a compiler had | |
484 | to put the "c:file.c" name into debug info. Such compatibility | |
485 | works only on GDB built for DOS host. */ | |
4aac40c8 | 486 | return (len == search_len |
af529f8f JK |
487 | || (!IS_ABSOLUTE_PATH (search_name) |
488 | && IS_DIR_SEPARATOR (filename[len - search_len - 1])) | |
4aac40c8 TT |
489 | || (HAS_DRIVE_SPEC (filename) |
490 | && STRIP_DRIVE_SPEC (filename) == &filename[len - search_len])); | |
491 | } | |
492 | ||
cce0e923 DE |
493 | /* Same as compare_filenames_for_search, but for glob-style patterns. |
494 | Heads up on the order of the arguments. They match the order of | |
495 | compare_filenames_for_search, but it's the opposite of the order of | |
496 | arguments to gdb_filename_fnmatch. */ | |
497 | ||
ececd218 | 498 | bool |
cce0e923 DE |
499 | compare_glob_filenames_for_search (const char *filename, |
500 | const char *search_name) | |
501 | { | |
502 | /* We rely on the property of glob-style patterns with FNM_FILE_NAME that | |
503 | all /s have to be explicitly specified. */ | |
504 | int file_path_elements = count_path_elements (filename); | |
505 | int search_path_elements = count_path_elements (search_name); | |
506 | ||
507 | if (search_path_elements > file_path_elements) | |
ececd218 | 508 | return false; |
cce0e923 DE |
509 | |
510 | if (IS_ABSOLUTE_PATH (search_name)) | |
511 | { | |
512 | return (search_path_elements == file_path_elements | |
513 | && gdb_filename_fnmatch (search_name, filename, | |
514 | FNM_FILE_NAME | FNM_NOESCAPE) == 0); | |
515 | } | |
516 | ||
517 | { | |
518 | const char *file_to_compare | |
519 | = strip_leading_path_elements (filename, | |
520 | file_path_elements - search_path_elements); | |
521 | ||
522 | return gdb_filename_fnmatch (search_name, file_to_compare, | |
523 | FNM_FILE_NAME | FNM_NOESCAPE) == 0; | |
524 | } | |
525 | } | |
526 | ||
f8eba3c6 TT |
527 | /* Check for a symtab of a specific name by searching some symtabs. |
528 | This is a helper function for callbacks of iterate_over_symtabs. | |
c906108c | 529 | |
b2d23133 DE |
530 | If NAME is not absolute, then REAL_PATH is NULL |
531 | If NAME is absolute, then REAL_PATH is the gdb_realpath form of NAME. | |
532 | ||
14bc53a8 PA |
533 | The return value, NAME, REAL_PATH and CALLBACK are identical to the |
534 | `map_symtabs_matching_filename' method of quick_symbol_functions. | |
f8eba3c6 | 535 | |
43f3e411 DE |
536 | FIRST and AFTER_LAST indicate the range of compunit symtabs to search. |
537 | Each symtab within the specified compunit symtab is also searched. | |
538 | AFTER_LAST is one past the last compunit symtab to search; NULL means to | |
f8eba3c6 TT |
539 | search until the end of the list. */ |
540 | ||
14bc53a8 | 541 | bool |
f8eba3c6 | 542 | iterate_over_some_symtabs (const char *name, |
f8eba3c6 | 543 | const char *real_path, |
43f3e411 | 544 | struct compunit_symtab *first, |
14bc53a8 PA |
545 | struct compunit_symtab *after_last, |
546 | gdb::function_view<bool (symtab *)> callback) | |
c906108c | 547 | { |
43f3e411 | 548 | struct compunit_symtab *cust; |
c011a4f4 | 549 | const char* base_name = lbasename (name); |
1f84b619 | 550 | |
43f3e411 | 551 | for (cust = first; cust != NULL && cust != after_last; cust = cust->next) |
f079a2e5 | 552 | { |
102cc235 | 553 | for (symtab *s : cust->filetabs ()) |
a94e8645 | 554 | { |
43f3e411 DE |
555 | if (compare_filenames_for_search (s->filename, name)) |
556 | { | |
14bc53a8 PA |
557 | if (callback (s)) |
558 | return true; | |
43f3e411 DE |
559 | continue; |
560 | } | |
a94e8645 | 561 | |
43f3e411 DE |
562 | /* Before we invoke realpath, which can get expensive when many |
563 | files are involved, do a quick comparison of the basenames. */ | |
564 | if (! basenames_may_differ | |
565 | && FILENAME_CMP (base_name, lbasename (s->filename)) != 0) | |
566 | continue; | |
a94e8645 | 567 | |
43f3e411 | 568 | if (compare_filenames_for_search (symtab_to_fullname (s), name)) |
a94e8645 | 569 | { |
14bc53a8 PA |
570 | if (callback (s)) |
571 | return true; | |
a94e8645 DE |
572 | continue; |
573 | } | |
43f3e411 DE |
574 | |
575 | /* If the user gave us an absolute path, try to find the file in | |
576 | this symtab and use its absolute path. */ | |
577 | if (real_path != NULL) | |
578 | { | |
579 | const char *fullname = symtab_to_fullname (s); | |
580 | ||
581 | gdb_assert (IS_ABSOLUTE_PATH (real_path)); | |
582 | gdb_assert (IS_ABSOLUTE_PATH (name)); | |
7e785608 TV |
583 | gdb::unique_xmalloc_ptr<char> fullname_real_path |
584 | = gdb_realpath (fullname); | |
585 | fullname = fullname_real_path.get (); | |
43f3e411 DE |
586 | if (FILENAME_CMP (real_path, fullname) == 0) |
587 | { | |
14bc53a8 PA |
588 | if (callback (s)) |
589 | return true; | |
43f3e411 DE |
590 | continue; |
591 | } | |
592 | } | |
a94e8645 | 593 | } |
f8eba3c6 | 594 | } |
58d370e0 | 595 | |
14bc53a8 | 596 | return false; |
f8eba3c6 TT |
597 | } |
598 | ||
599 | /* Check for a symtab of a specific name; first in symtabs, then in | |
600 | psymtabs. *If* there is no '/' in the name, a match after a '/' | |
601 | in the symtab filename will also work. | |
602 | ||
14bc53a8 PA |
603 | Calls CALLBACK with each symtab that is found. If CALLBACK returns |
604 | true, the search stops. */ | |
f8eba3c6 TT |
605 | |
606 | void | |
607 | iterate_over_symtabs (const char *name, | |
14bc53a8 | 608 | gdb::function_view<bool (symtab *)> callback) |
f8eba3c6 | 609 | { |
14bc53a8 | 610 | gdb::unique_xmalloc_ptr<char> real_path; |
f8eba3c6 TT |
611 | |
612 | /* Here we are interested in canonicalizing an absolute path, not | |
613 | absolutizing a relative path. */ | |
614 | if (IS_ABSOLUTE_PATH (name)) | |
615 | { | |
14278e1f | 616 | real_path = gdb_realpath (name); |
14bc53a8 | 617 | gdb_assert (IS_ABSOLUTE_PATH (real_path.get ())); |
f8eba3c6 TT |
618 | } |
619 | ||
2030c079 | 620 | for (objfile *objfile : current_program_space->objfiles ()) |
14bc53a8 PA |
621 | { |
622 | if (iterate_over_some_symtabs (name, real_path.get (), | |
623 | objfile->compunit_symtabs, NULL, | |
624 | callback)) | |
f8eba3c6 | 625 | return; |
14bc53a8 | 626 | } |
f8eba3c6 | 627 | |
c906108c SS |
628 | /* Same search rules as above apply here, but now we look thru the |
629 | psymtabs. */ | |
630 | ||
2030c079 | 631 | for (objfile *objfile : current_program_space->objfiles ()) |
14bc53a8 | 632 | { |
4d080b46 TT |
633 | if (objfile->map_symtabs_matching_filename (name, real_path.get (), |
634 | callback)) | |
f8eba3c6 | 635 | return; |
14bc53a8 | 636 | } |
c906108c | 637 | } |
f8eba3c6 TT |
638 | |
639 | /* A wrapper for iterate_over_symtabs that returns the first matching | |
640 | symtab, or NULL. */ | |
641 | ||
642 | struct symtab * | |
643 | lookup_symtab (const char *name) | |
644 | { | |
645 | struct symtab *result = NULL; | |
646 | ||
14bc53a8 PA |
647 | iterate_over_symtabs (name, [&] (symtab *symtab) |
648 | { | |
649 | result = symtab; | |
650 | return true; | |
651 | }); | |
652 | ||
f8eba3c6 TT |
653 | return result; |
654 | } | |
655 | ||
c906108c SS |
656 | \f |
657 | /* Mangle a GDB method stub type. This actually reassembles the pieces of the | |
658 | full method name, which consist of the class name (from T), the unadorned | |
659 | method name from METHOD_ID, and the signature for the specific overload, | |
c378eb4e | 660 | specified by SIGNATURE_ID. Note that this function is g++ specific. */ |
c906108c SS |
661 | |
662 | char * | |
fba45db2 | 663 | gdb_mangle_name (struct type *type, int method_id, int signature_id) |
c906108c SS |
664 | { |
665 | int mangled_name_len; | |
666 | char *mangled_name; | |
667 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
668 | struct fn_field *method = &f[signature_id]; | |
0d5cff50 | 669 | const char *field_name = TYPE_FN_FIELDLIST_NAME (type, method_id); |
1d06ead6 | 670 | const char *physname = TYPE_FN_FIELD_PHYSNAME (f, signature_id); |
7d93a1e0 | 671 | const char *newname = type->name (); |
c906108c SS |
672 | |
673 | /* Does the form of physname indicate that it is the full mangled name | |
674 | of a constructor (not just the args)? */ | |
675 | int is_full_physname_constructor; | |
676 | ||
677 | int is_constructor; | |
015a42b4 | 678 | int is_destructor = is_destructor_name (physname); |
c906108c | 679 | /* Need a new type prefix. */ |
e6a959d6 PA |
680 | const char *const_prefix = method->is_const ? "C" : ""; |
681 | const char *volatile_prefix = method->is_volatile ? "V" : ""; | |
c906108c SS |
682 | char buf[20]; |
683 | int len = (newname == NULL ? 0 : strlen (newname)); | |
684 | ||
43630227 PS |
685 | /* Nothing to do if physname already contains a fully mangled v3 abi name |
686 | or an operator name. */ | |
687 | if ((physname[0] == '_' && physname[1] == 'Z') | |
688 | || is_operator_name (field_name)) | |
235d1e03 EZ |
689 | return xstrdup (physname); |
690 | ||
015a42b4 | 691 | is_full_physname_constructor = is_constructor_name (physname); |
c906108c | 692 | |
3e43a32a MS |
693 | is_constructor = is_full_physname_constructor |
694 | || (newname && strcmp (field_name, newname) == 0); | |
c906108c SS |
695 | |
696 | if (!is_destructor) | |
61012eef | 697 | is_destructor = (startswith (physname, "__dt")); |
c906108c SS |
698 | |
699 | if (is_destructor || is_full_physname_constructor) | |
700 | { | |
c5aa993b JM |
701 | mangled_name = (char *) xmalloc (strlen (physname) + 1); |
702 | strcpy (mangled_name, physname); | |
c906108c SS |
703 | return mangled_name; |
704 | } | |
705 | ||
706 | if (len == 0) | |
707 | { | |
8c042590 | 708 | xsnprintf (buf, sizeof (buf), "__%s%s", const_prefix, volatile_prefix); |
c906108c SS |
709 | } |
710 | else if (physname[0] == 't' || physname[0] == 'Q') | |
711 | { | |
712 | /* The physname for template and qualified methods already includes | |
dda83cd7 | 713 | the class name. */ |
8c042590 | 714 | xsnprintf (buf, sizeof (buf), "__%s%s", const_prefix, volatile_prefix); |
c906108c SS |
715 | newname = NULL; |
716 | len = 0; | |
717 | } | |
718 | else | |
719 | { | |
8c042590 PM |
720 | xsnprintf (buf, sizeof (buf), "__%s%s%d", const_prefix, |
721 | volatile_prefix, len); | |
c906108c SS |
722 | } |
723 | mangled_name_len = ((is_constructor ? 0 : strlen (field_name)) | |
235d1e03 | 724 | + strlen (buf) + len + strlen (physname) + 1); |
c906108c | 725 | |
433759f7 MS |
726 | mangled_name = (char *) xmalloc (mangled_name_len); |
727 | if (is_constructor) | |
728 | mangled_name[0] = '\0'; | |
729 | else | |
730 | strcpy (mangled_name, field_name); | |
731 | ||
c906108c SS |
732 | strcat (mangled_name, buf); |
733 | /* If the class doesn't have a name, i.e. newname NULL, then we just | |
734 | mangle it using 0 for the length of the class. Thus it gets mangled | |
c378eb4e | 735 | as something starting with `::' rather than `classname::'. */ |
c906108c SS |
736 | if (newname != NULL) |
737 | strcat (mangled_name, newname); | |
738 | ||
739 | strcat (mangled_name, physname); | |
740 | return (mangled_name); | |
741 | } | |
12af6855 | 742 | |
ff985671 | 743 | /* See symtab.h. */ |
eca864fe | 744 | |
b250c185 | 745 | void |
ff985671 TT |
746 | general_symbol_info::set_demangled_name (const char *name, |
747 | struct obstack *obstack) | |
b250c185 | 748 | { |
ff985671 | 749 | if (language () == language_ada) |
f85f34ed TT |
750 | { |
751 | if (name == NULL) | |
752 | { | |
ff985671 TT |
753 | ada_mangled = 0; |
754 | language_specific.obstack = obstack; | |
f85f34ed TT |
755 | } |
756 | else | |
757 | { | |
ff985671 TT |
758 | ada_mangled = 1; |
759 | language_specific.demangled_name = name; | |
f85f34ed TT |
760 | } |
761 | } | |
29df156d | 762 | else |
ff985671 | 763 | language_specific.demangled_name = name; |
b250c185 SW |
764 | } |
765 | ||
12af6855 | 766 | \f |
89aad1f9 | 767 | /* Initialize the language dependent portion of a symbol |
c378eb4e | 768 | depending upon the language for the symbol. */ |
eca864fe | 769 | |
89aad1f9 | 770 | void |
d3ecddab CB |
771 | general_symbol_info::set_language (enum language language, |
772 | struct obstack *obstack) | |
89aad1f9 | 773 | { |
d3ecddab | 774 | m_language = language; |
c1b5c1eb CB |
775 | if (language == language_cplus |
776 | || language == language_d | |
777 | || language == language_go | |
778 | || language == language_objc | |
779 | || language == language_fortran) | |
89aad1f9 | 780 | { |
ff985671 | 781 | set_demangled_name (NULL, obstack); |
f85f34ed | 782 | } |
c1b5c1eb | 783 | else if (language == language_ada) |
f85f34ed | 784 | { |
d3ecddab CB |
785 | gdb_assert (ada_mangled == 0); |
786 | language_specific.obstack = obstack; | |
89aad1f9 | 787 | } |
89aad1f9 EZ |
788 | else |
789 | { | |
d3ecddab | 790 | memset (&language_specific, 0, sizeof (language_specific)); |
89aad1f9 EZ |
791 | } |
792 | } | |
793 | ||
2de7ced7 DJ |
794 | /* Functions to initialize a symbol's mangled name. */ |
795 | ||
04a679b8 TT |
796 | /* Objects of this type are stored in the demangled name hash table. */ |
797 | struct demangled_name_entry | |
798 | { | |
3a494279 CB |
799 | demangled_name_entry (gdb::string_view mangled_name) |
800 | : mangled (mangled_name) {} | |
801 | ||
7bb43059 | 802 | gdb::string_view mangled; |
403772ef | 803 | enum language language; |
5396ae17 | 804 | gdb::unique_xmalloc_ptr<char> demangled; |
04a679b8 TT |
805 | }; |
806 | ||
807 | /* Hash function for the demangled name hash. */ | |
eca864fe | 808 | |
04a679b8 TT |
809 | static hashval_t |
810 | hash_demangled_name_entry (const void *data) | |
811 | { | |
19ba03f4 SM |
812 | const struct demangled_name_entry *e |
813 | = (const struct demangled_name_entry *) data; | |
433759f7 | 814 | |
1a6ff1a9 | 815 | return fast_hash (e->mangled.data (), e->mangled.length ()); |
04a679b8 TT |
816 | } |
817 | ||
818 | /* Equality function for the demangled name hash. */ | |
eca864fe | 819 | |
04a679b8 TT |
820 | static int |
821 | eq_demangled_name_entry (const void *a, const void *b) | |
822 | { | |
19ba03f4 SM |
823 | const struct demangled_name_entry *da |
824 | = (const struct demangled_name_entry *) a; | |
825 | const struct demangled_name_entry *db | |
826 | = (const struct demangled_name_entry *) b; | |
433759f7 | 827 | |
7bb43059 | 828 | return da->mangled == db->mangled; |
04a679b8 TT |
829 | } |
830 | ||
3a494279 CB |
831 | static void |
832 | free_demangled_name_entry (void *data) | |
833 | { | |
834 | struct demangled_name_entry *e | |
835 | = (struct demangled_name_entry *) data; | |
836 | ||
837 | e->~demangled_name_entry(); | |
838 | } | |
839 | ||
2de7ced7 DJ |
840 | /* Create the hash table used for demangled names. Each hash entry is |
841 | a pair of strings; one for the mangled name and one for the demangled | |
842 | name. The entry is hashed via just the mangled name. */ | |
843 | ||
844 | static void | |
0f14768a | 845 | create_demangled_names_hash (struct objfile_per_bfd_storage *per_bfd) |
2de7ced7 DJ |
846 | { |
847 | /* Choose 256 as the starting size of the hash table, somewhat arbitrarily. | |
9af17804 | 848 | The hash table code will round this up to the next prime number. |
2de7ced7 | 849 | Choosing a much larger table size wastes memory, and saves only about |
f8bab2d6 CB |
850 | 1% in symbol reading. However, if the minsym count is already |
851 | initialized (e.g. because symbol name setting was deferred to | |
852 | a background thread) we can initialize the hashtable with a count | |
853 | based on that, because we will almost certainly have at least that | |
854 | many entries. If we have a nonzero number but less than 256, | |
855 | we still stay with 256 to have some space for psymbols, etc. */ | |
856 | ||
857 | /* htab will expand the table when it is 3/4th full, so we account for that | |
858 | here. +2 to round up. */ | |
859 | int minsym_based_count = (per_bfd->minimal_symbol_count + 2) / 3 * 4; | |
860 | int count = std::max (per_bfd->minimal_symbol_count, minsym_based_count); | |
2de7ced7 | 861 | |
db92718b | 862 | per_bfd->demangled_names_hash.reset (htab_create_alloc |
f8bab2d6 | 863 | (count, hash_demangled_name_entry, eq_demangled_name_entry, |
3a494279 | 864 | free_demangled_name_entry, xcalloc, xfree)); |
2de7ced7 | 865 | } |
12af6855 | 866 | |
d55c9a68 | 867 | /* See symtab.h */ |
12af6855 | 868 | |
3456e70c | 869 | gdb::unique_xmalloc_ptr<char> |
2de7ced7 DJ |
870 | symbol_find_demangled_name (struct general_symbol_info *gsymbol, |
871 | const char *mangled) | |
12af6855 | 872 | { |
3456e70c | 873 | gdb::unique_xmalloc_ptr<char> demangled; |
8b302db8 | 874 | int i; |
12af6855 | 875 | |
c1b5c1eb CB |
876 | if (gsymbol->language () == language_unknown) |
877 | gsymbol->m_language = language_auto; | |
1bae87b9 | 878 | |
c1b5c1eb | 879 | if (gsymbol->language () != language_auto) |
1bae87b9 | 880 | { |
c1b5c1eb | 881 | const struct language_defn *lang = language_def (gsymbol->language ()); |
8b302db8 | 882 | |
6f827019 | 883 | lang->sniff_from_mangled_name (mangled, &demangled); |
8b302db8 | 884 | return demangled; |
6aecb9c2 | 885 | } |
8b302db8 TT |
886 | |
887 | for (i = language_unknown; i < nr_languages; ++i) | |
a766d390 | 888 | { |
8b302db8 TT |
889 | enum language l = (enum language) i; |
890 | const struct language_defn *lang = language_def (l); | |
891 | ||
6f827019 | 892 | if (lang->sniff_from_mangled_name (mangled, &demangled)) |
a766d390 | 893 | { |
c1b5c1eb | 894 | gsymbol->m_language = l; |
a766d390 DE |
895 | return demangled; |
896 | } | |
897 | } | |
898 | ||
2de7ced7 DJ |
899 | return NULL; |
900 | } | |
901 | ||
980cae7a | 902 | /* Set both the mangled and demangled (if any) names for GSYMBOL based |
04a679b8 TT |
903 | on LINKAGE_NAME and LEN. Ordinarily, NAME is copied onto the |
904 | objfile's obstack; but if COPY_NAME is 0 and if NAME is | |
905 | NUL-terminated, then this function assumes that NAME is already | |
906 | correctly saved (either permanently or with a lifetime tied to the | |
907 | objfile), and it will not be copied. | |
908 | ||
909 | The hash table corresponding to OBJFILE is used, and the memory | |
84a1243b | 910 | comes from the per-BFD storage_obstack. LINKAGE_NAME is copied, |
04a679b8 | 911 | so the pointer can be discarded after calling this function. */ |
2de7ced7 DJ |
912 | |
913 | void | |
4d4eaa30 CB |
914 | general_symbol_info::compute_and_set_names (gdb::string_view linkage_name, |
915 | bool copy_name, | |
916 | objfile_per_bfd_storage *per_bfd, | |
917 | gdb::optional<hashval_t> hash) | |
2de7ced7 | 918 | { |
04a679b8 | 919 | struct demangled_name_entry **slot; |
2de7ced7 | 920 | |
4d4eaa30 | 921 | if (language () == language_ada) |
b06ead72 JB |
922 | { |
923 | /* In Ada, we do the symbol lookups using the mangled name, so | |
dda83cd7 | 924 | we can save some space by not storing the demangled name. */ |
92174eea | 925 | if (!copy_name) |
4d4eaa30 | 926 | m_name = linkage_name.data (); |
04a679b8 | 927 | else |
869d8950 TT |
928 | m_name = obstack_strndup (&per_bfd->storage_obstack, |
929 | linkage_name.data (), | |
930 | linkage_name.length ()); | |
ff985671 | 931 | set_demangled_name (NULL, &per_bfd->storage_obstack); |
b06ead72 JB |
932 | |
933 | return; | |
934 | } | |
935 | ||
84a1243b | 936 | if (per_bfd->demangled_names_hash == NULL) |
0f14768a | 937 | create_demangled_names_hash (per_bfd); |
04a679b8 | 938 | |
31edb802 | 939 | struct demangled_name_entry entry (linkage_name); |
e76b2246 CB |
940 | if (!hash.has_value ()) |
941 | hash = hash_demangled_name_entry (&entry); | |
04a679b8 | 942 | slot = ((struct demangled_name_entry **) |
dda83cd7 | 943 | htab_find_slot_with_hash (per_bfd->demangled_names_hash.get (), |
e76b2246 | 944 | &entry, *hash, INSERT)); |
2de7ced7 | 945 | |
57d75002 CB |
946 | /* The const_cast is safe because the only reason it is already |
947 | initialized is if we purposefully set it from a background | |
948 | thread to avoid doing the work here. However, it is still | |
949 | allocated from the heap and needs to be freed by us, just | |
950 | like if we called symbol_find_demangled_name here. If this is | |
951 | nullptr, we call symbol_find_demangled_name below, but we put | |
952 | this smart pointer here to be sure that we don't leak this name. */ | |
953 | gdb::unique_xmalloc_ptr<char> demangled_name | |
954 | (const_cast<char *> (language_specific.demangled_name)); | |
955 | ||
2de7ced7 | 956 | /* If this name is not in the hash table, add it. */ |
a766d390 DE |
957 | if (*slot == NULL |
958 | /* A C version of the symbol may have already snuck into the table. | |
959 | This happens to, e.g., main.init (__go_init_main). Cope. */ | |
4d4eaa30 | 960 | || (language () == language_go && (*slot)->demangled == nullptr)) |
2de7ced7 | 961 | { |
0c921b21 | 962 | /* A 0-terminated copy of the linkage name. Callers must set COPY_NAME |
dda83cd7 SM |
963 | to true if the string might not be nullterminated. We have to make |
964 | this copy because demangling needs a nullterminated string. */ | |
31edb802 | 965 | gdb::string_view linkage_name_copy; |
0c921b21 CB |
966 | if (copy_name) |
967 | { | |
31edb802 CB |
968 | char *alloc_name = (char *) alloca (linkage_name.length () + 1); |
969 | memcpy (alloc_name, linkage_name.data (), linkage_name.length ()); | |
970 | alloc_name[linkage_name.length ()] = '\0'; | |
0c921b21 | 971 | |
31edb802 CB |
972 | linkage_name_copy = gdb::string_view (alloc_name, |
973 | linkage_name.length ()); | |
0c921b21 CB |
974 | } |
975 | else | |
976 | linkage_name_copy = linkage_name; | |
977 | ||
57d75002 | 978 | if (demangled_name.get () == nullptr) |
3456e70c TT |
979 | demangled_name |
980 | = symbol_find_demangled_name (this, linkage_name_copy.data ()); | |
2de7ced7 | 981 | |
04a679b8 | 982 | /* Suppose we have demangled_name==NULL, copy_name==0, and |
9c37b5ae | 983 | linkage_name_copy==linkage_name. In this case, we already have the |
04a679b8 TT |
984 | mangled name saved, and we don't have a demangled name. So, |
985 | you might think we could save a little space by not recording | |
986 | this in the hash table at all. | |
5396ae17 | 987 | |
04a679b8 TT |
988 | It turns out that it is actually important to still save such |
989 | an entry in the hash table, because storing this name gives | |
705b5767 | 990 | us better bcache hit rates for partial symbols. */ |
0c921b21 | 991 | if (!copy_name) |
04a679b8 | 992 | { |
224c3ddb SM |
993 | *slot |
994 | = ((struct demangled_name_entry *) | |
995 | obstack_alloc (&per_bfd->storage_obstack, | |
5396ae17 | 996 | sizeof (demangled_name_entry))); |
31edb802 | 997 | new (*slot) demangled_name_entry (linkage_name); |
04a679b8 TT |
998 | } |
999 | else | |
1000 | { | |
1001 | /* If we must copy the mangled name, put it directly after | |
5396ae17 | 1002 | the struct so we can have a single allocation. */ |
224c3ddb SM |
1003 | *slot |
1004 | = ((struct demangled_name_entry *) | |
1005 | obstack_alloc (&per_bfd->storage_obstack, | |
31edb802 CB |
1006 | sizeof (demangled_name_entry) |
1007 | + linkage_name.length () + 1)); | |
5396ae17 | 1008 | char *mangled_ptr = reinterpret_cast<char *> (*slot + 1); |
31edb802 CB |
1009 | memcpy (mangled_ptr, linkage_name.data (), linkage_name.length ()); |
1010 | mangled_ptr [linkage_name.length ()] = '\0'; | |
3a494279 | 1011 | new (*slot) demangled_name_entry |
31edb802 | 1012 | (gdb::string_view (mangled_ptr, linkage_name.length ())); |
04a679b8 | 1013 | } |
d55c9a68 | 1014 | (*slot)->demangled = std::move (demangled_name); |
4d4eaa30 | 1015 | (*slot)->language = language (); |
2de7ced7 | 1016 | } |
4d4eaa30 CB |
1017 | else if (language () == language_unknown || language () == language_auto) |
1018 | m_language = (*slot)->language; | |
2de7ced7 | 1019 | |
4d4eaa30 | 1020 | m_name = (*slot)->mangled.data (); |
ff985671 | 1021 | set_demangled_name ((*slot)->demangled.get (), &per_bfd->storage_obstack); |
2de7ced7 DJ |
1022 | } |
1023 | ||
c9d95fa3 | 1024 | /* See symtab.h. */ |
22abf04a | 1025 | |
0d5cff50 | 1026 | const char * |
c9d95fa3 | 1027 | general_symbol_info::natural_name () const |
22abf04a | 1028 | { |
c1b5c1eb | 1029 | switch (language ()) |
22abf04a | 1030 | { |
1f8173e6 | 1031 | case language_cplus: |
6aecb9c2 | 1032 | case language_d: |
a766d390 | 1033 | case language_go: |
1f8173e6 | 1034 | case language_objc: |
f55ee35c | 1035 | case language_fortran: |
8c87a452 | 1036 | case language_rust: |
7151c1af TT |
1037 | if (language_specific.demangled_name != nullptr) |
1038 | return language_specific.demangled_name; | |
1f8173e6 PH |
1039 | break; |
1040 | case language_ada: | |
c9d95fa3 | 1041 | return ada_decode_symbol (this); |
1f8173e6 PH |
1042 | default: |
1043 | break; | |
22abf04a | 1044 | } |
4d4eaa30 | 1045 | return linkage_name (); |
22abf04a DC |
1046 | } |
1047 | ||
c9d95fa3 | 1048 | /* See symtab.h. */ |
eca864fe | 1049 | |
0d5cff50 | 1050 | const char * |
c9d95fa3 | 1051 | general_symbol_info::demangled_name () const |
9cc0d196 | 1052 | { |
c6e5ee5e SDJ |
1053 | const char *dem_name = NULL; |
1054 | ||
c1b5c1eb | 1055 | switch (language ()) |
1f8173e6 PH |
1056 | { |
1057 | case language_cplus: | |
6aecb9c2 | 1058 | case language_d: |
a766d390 | 1059 | case language_go: |
1f8173e6 | 1060 | case language_objc: |
f55ee35c | 1061 | case language_fortran: |
8c87a452 | 1062 | case language_rust: |
7151c1af | 1063 | dem_name = language_specific.demangled_name; |
1f8173e6 PH |
1064 | break; |
1065 | case language_ada: | |
c9d95fa3 | 1066 | dem_name = ada_decode_symbol (this); |
1f8173e6 PH |
1067 | break; |
1068 | default: | |
1069 | break; | |
1070 | } | |
c6e5ee5e | 1071 | return dem_name; |
9cc0d196 | 1072 | } |
fe39c653 | 1073 | |
c9d95fa3 | 1074 | /* See symtab.h. */ |
eca864fe | 1075 | |
0d5cff50 | 1076 | const char * |
c9d95fa3 | 1077 | general_symbol_info::search_name () const |
fc062ac6 | 1078 | { |
c1b5c1eb | 1079 | if (language () == language_ada) |
4d4eaa30 | 1080 | return linkage_name (); |
1f8173e6 | 1081 | else |
c9d95fa3 | 1082 | return natural_name (); |
4725b721 | 1083 | } |
b5ec771e PA |
1084 | |
1085 | /* See symtab.h. */ | |
1086 | ||
ebbc3a7d AB |
1087 | struct obj_section * |
1088 | general_symbol_info::obj_section (const struct objfile *objfile) const | |
1089 | { | |
a52d653e AB |
1090 | if (section_index () >= 0) |
1091 | return &objfile->sections[section_index ()]; | |
ebbc3a7d AB |
1092 | return nullptr; |
1093 | } | |
1094 | ||
1095 | /* See symtab.h. */ | |
1096 | ||
b5ec771e PA |
1097 | bool |
1098 | symbol_matches_search_name (const struct general_symbol_info *gsymbol, | |
1099 | const lookup_name_info &name) | |
1100 | { | |
1101 | symbol_name_matcher_ftype *name_match | |
c9debfb9 | 1102 | = language_def (gsymbol->language ())->get_symbol_name_matcher (name); |
c9d95fa3 | 1103 | return name_match (gsymbol->search_name (), name, NULL); |
b5ec771e PA |
1104 | } |
1105 | ||
c906108c SS |
1106 | \f |
1107 | ||
ececd218 | 1108 | /* Return true if the two sections are the same, or if they could |
94277a38 DJ |
1109 | plausibly be copies of each other, one in an original object |
1110 | file and another in a separated debug file. */ | |
1111 | ||
ececd218 | 1112 | bool |
714835d5 UW |
1113 | matching_obj_sections (struct obj_section *obj_first, |
1114 | struct obj_section *obj_second) | |
94277a38 | 1115 | { |
714835d5 UW |
1116 | asection *first = obj_first? obj_first->the_bfd_section : NULL; |
1117 | asection *second = obj_second? obj_second->the_bfd_section : NULL; | |
94277a38 DJ |
1118 | |
1119 | /* If they're the same section, then they match. */ | |
1120 | if (first == second) | |
ececd218 | 1121 | return true; |
94277a38 DJ |
1122 | |
1123 | /* If either is NULL, give up. */ | |
1124 | if (first == NULL || second == NULL) | |
ececd218 | 1125 | return false; |
94277a38 DJ |
1126 | |
1127 | /* This doesn't apply to absolute symbols. */ | |
1128 | if (first->owner == NULL || second->owner == NULL) | |
ececd218 | 1129 | return false; |
94277a38 DJ |
1130 | |
1131 | /* If they're in the same object file, they must be different sections. */ | |
1132 | if (first->owner == second->owner) | |
ececd218 | 1133 | return false; |
94277a38 DJ |
1134 | |
1135 | /* Check whether the two sections are potentially corresponding. They must | |
1136 | have the same size, address, and name. We can't compare section indexes, | |
1137 | which would be more reliable, because some sections may have been | |
1138 | stripped. */ | |
fd361982 | 1139 | if (bfd_section_size (first) != bfd_section_size (second)) |
ececd218 | 1140 | return false; |
94277a38 | 1141 | |
818f79f6 | 1142 | /* In-memory addresses may start at a different offset, relativize them. */ |
fd361982 AM |
1143 | if (bfd_section_vma (first) - bfd_get_start_address (first->owner) |
1144 | != bfd_section_vma (second) - bfd_get_start_address (second->owner)) | |
ececd218 | 1145 | return false; |
94277a38 | 1146 | |
fd361982 AM |
1147 | if (bfd_section_name (first) == NULL |
1148 | || bfd_section_name (second) == NULL | |
1149 | || strcmp (bfd_section_name (first), bfd_section_name (second)) != 0) | |
ececd218 | 1150 | return false; |
94277a38 DJ |
1151 | |
1152 | /* Otherwise check that they are in corresponding objfiles. */ | |
1153 | ||
9d7c67bf | 1154 | struct objfile *obj = NULL; |
2030c079 | 1155 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
1156 | if (objfile->obfd == first->owner) |
1157 | { | |
1158 | obj = objfile; | |
1159 | break; | |
1160 | } | |
94277a38 DJ |
1161 | gdb_assert (obj != NULL); |
1162 | ||
1163 | if (obj->separate_debug_objfile != NULL | |
1164 | && obj->separate_debug_objfile->obfd == second->owner) | |
ececd218 | 1165 | return true; |
94277a38 DJ |
1166 | if (obj->separate_debug_objfile_backlink != NULL |
1167 | && obj->separate_debug_objfile_backlink->obfd == second->owner) | |
ececd218 | 1168 | return true; |
94277a38 | 1169 | |
ececd218 | 1170 | return false; |
94277a38 | 1171 | } |
c5aa993b | 1172 | |
2097ae25 DE |
1173 | /* See symtab.h. */ |
1174 | ||
1175 | void | |
1176 | expand_symtab_containing_pc (CORE_ADDR pc, struct obj_section *section) | |
c906108c | 1177 | { |
77e371c0 | 1178 | struct bound_minimal_symbol msymbol; |
8a48e967 DJ |
1179 | |
1180 | /* If we know that this is not a text address, return failure. This is | |
1181 | necessary because we loop based on texthigh and textlow, which do | |
1182 | not include the data ranges. */ | |
77e371c0 | 1183 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); |
1ed9f74e | 1184 | if (msymbol.minsym && msymbol.minsym->data_p ()) |
2097ae25 | 1185 | return; |
c906108c | 1186 | |
2030c079 | 1187 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 | 1188 | { |
4d080b46 TT |
1189 | struct compunit_symtab *cust |
1190 | = objfile->find_pc_sect_compunit_symtab (msymbol, pc, section, 0); | |
aed57c53 TT |
1191 | if (cust) |
1192 | return; | |
1193 | } | |
c906108c | 1194 | } |
c906108c | 1195 | \f |
f57d2163 DE |
1196 | /* Hash function for the symbol cache. */ |
1197 | ||
1198 | static unsigned int | |
1199 | hash_symbol_entry (const struct objfile *objfile_context, | |
1200 | const char *name, domain_enum domain) | |
1201 | { | |
1202 | unsigned int hash = (uintptr_t) objfile_context; | |
1203 | ||
1204 | if (name != NULL) | |
1205 | hash += htab_hash_string (name); | |
1206 | ||
2c26b84f DE |
1207 | /* Because of symbol_matches_domain we need VAR_DOMAIN and STRUCT_DOMAIN |
1208 | to map to the same slot. */ | |
1209 | if (domain == STRUCT_DOMAIN) | |
1210 | hash += VAR_DOMAIN * 7; | |
1211 | else | |
1212 | hash += domain * 7; | |
f57d2163 DE |
1213 | |
1214 | return hash; | |
1215 | } | |
1216 | ||
1217 | /* Equality function for the symbol cache. */ | |
1218 | ||
1219 | static int | |
1220 | eq_symbol_entry (const struct symbol_cache_slot *slot, | |
1221 | const struct objfile *objfile_context, | |
1222 | const char *name, domain_enum domain) | |
1223 | { | |
1224 | const char *slot_name; | |
1225 | domain_enum slot_domain; | |
1226 | ||
1227 | if (slot->state == SYMBOL_SLOT_UNUSED) | |
1228 | return 0; | |
1229 | ||
1230 | if (slot->objfile_context != objfile_context) | |
1231 | return 0; | |
1232 | ||
1233 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
1234 | { | |
1235 | slot_name = slot->value.not_found.name; | |
1236 | slot_domain = slot->value.not_found.domain; | |
1237 | } | |
1238 | else | |
1239 | { | |
987012b8 | 1240 | slot_name = slot->value.found.symbol->search_name (); |
6c9c307c | 1241 | slot_domain = slot->value.found.symbol->domain (); |
f57d2163 DE |
1242 | } |
1243 | ||
1244 | /* NULL names match. */ | |
1245 | if (slot_name == NULL && name == NULL) | |
1246 | { | |
1247 | /* But there's no point in calling symbol_matches_domain in the | |
1248 | SYMBOL_SLOT_FOUND case. */ | |
1249 | if (slot_domain != domain) | |
1250 | return 0; | |
1251 | } | |
1252 | else if (slot_name != NULL && name != NULL) | |
1253 | { | |
b5ec771e PA |
1254 | /* It's important that we use the same comparison that was done |
1255 | the first time through. If the slot records a found symbol, | |
1256 | then this means using the symbol name comparison function of | |
987012b8 | 1257 | the symbol's language with symbol->search_name (). See |
b5ec771e PA |
1258 | dictionary.c. It also means using symbol_matches_domain for |
1259 | found symbols. See block.c. | |
f57d2163 DE |
1260 | |
1261 | If the slot records a not-found symbol, then require a precise match. | |
1262 | We could still be lax with whitespace like strcmp_iw though. */ | |
1263 | ||
1264 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
1265 | { | |
1266 | if (strcmp (slot_name, name) != 0) | |
1267 | return 0; | |
1268 | if (slot_domain != domain) | |
1269 | return 0; | |
1270 | } | |
1271 | else | |
1272 | { | |
d12307c1 | 1273 | struct symbol *sym = slot->value.found.symbol; |
b5ec771e | 1274 | lookup_name_info lookup_name (name, symbol_name_match_type::FULL); |
f57d2163 | 1275 | |
81e32b6a | 1276 | if (!symbol_matches_search_name (sym, lookup_name)) |
f57d2163 | 1277 | return 0; |
b5ec771e | 1278 | |
c1b5c1eb | 1279 | if (!symbol_matches_domain (sym->language (), slot_domain, domain)) |
f57d2163 DE |
1280 | return 0; |
1281 | } | |
1282 | } | |
1283 | else | |
1284 | { | |
1285 | /* Only one name is NULL. */ | |
1286 | return 0; | |
1287 | } | |
1288 | ||
1289 | return 1; | |
1290 | } | |
1291 | ||
1292 | /* Given a cache of size SIZE, return the size of the struct (with variable | |
1293 | length array) in bytes. */ | |
1294 | ||
1295 | static size_t | |
1296 | symbol_cache_byte_size (unsigned int size) | |
1297 | { | |
1298 | return (sizeof (struct block_symbol_cache) | |
1299 | + ((size - 1) * sizeof (struct symbol_cache_slot))); | |
1300 | } | |
1301 | ||
1302 | /* Resize CACHE. */ | |
1303 | ||
1304 | static void | |
1305 | resize_symbol_cache (struct symbol_cache *cache, unsigned int new_size) | |
1306 | { | |
1307 | /* If there's no change in size, don't do anything. | |
1308 | All caches have the same size, so we can just compare with the size | |
1309 | of the global symbols cache. */ | |
1310 | if ((cache->global_symbols != NULL | |
1311 | && cache->global_symbols->size == new_size) | |
1312 | || (cache->global_symbols == NULL | |
1313 | && new_size == 0)) | |
1314 | return; | |
1315 | ||
82f910ea PW |
1316 | destroy_block_symbol_cache (cache->global_symbols); |
1317 | destroy_block_symbol_cache (cache->static_symbols); | |
f57d2163 DE |
1318 | |
1319 | if (new_size == 0) | |
1320 | { | |
1321 | cache->global_symbols = NULL; | |
1322 | cache->static_symbols = NULL; | |
1323 | } | |
1324 | else | |
1325 | { | |
1326 | size_t total_size = symbol_cache_byte_size (new_size); | |
1327 | ||
224c3ddb SM |
1328 | cache->global_symbols |
1329 | = (struct block_symbol_cache *) xcalloc (1, total_size); | |
1330 | cache->static_symbols | |
1331 | = (struct block_symbol_cache *) xcalloc (1, total_size); | |
f57d2163 DE |
1332 | cache->global_symbols->size = new_size; |
1333 | cache->static_symbols->size = new_size; | |
1334 | } | |
1335 | } | |
1336 | ||
f57d2163 DE |
1337 | /* Return the symbol cache of PSPACE. |
1338 | Create one if it doesn't exist yet. */ | |
1339 | ||
1340 | static struct symbol_cache * | |
1341 | get_symbol_cache (struct program_space *pspace) | |
1342 | { | |
3017b94d | 1343 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 DE |
1344 | |
1345 | if (cache == NULL) | |
1346 | { | |
3017b94d TT |
1347 | cache = symbol_cache_key.emplace (pspace); |
1348 | resize_symbol_cache (cache, symbol_cache_size); | |
f57d2163 DE |
1349 | } |
1350 | ||
1351 | return cache; | |
1352 | } | |
1353 | ||
f57d2163 DE |
1354 | /* Set the size of the symbol cache in all program spaces. */ |
1355 | ||
1356 | static void | |
1357 | set_symbol_cache_size (unsigned int new_size) | |
1358 | { | |
94c93c35 | 1359 | for (struct program_space *pspace : program_spaces) |
f57d2163 | 1360 | { |
3017b94d | 1361 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 DE |
1362 | |
1363 | /* The pspace could have been created but not have a cache yet. */ | |
1364 | if (cache != NULL) | |
1365 | resize_symbol_cache (cache, new_size); | |
1366 | } | |
1367 | } | |
1368 | ||
1369 | /* Called when symbol-cache-size is set. */ | |
1370 | ||
1371 | static void | |
eb4c3f4a | 1372 | set_symbol_cache_size_handler (const char *args, int from_tty, |
f57d2163 DE |
1373 | struct cmd_list_element *c) |
1374 | { | |
1375 | if (new_symbol_cache_size > MAX_SYMBOL_CACHE_SIZE) | |
1376 | { | |
1377 | /* Restore the previous value. | |
1378 | This is the value the "show" command prints. */ | |
1379 | new_symbol_cache_size = symbol_cache_size; | |
1380 | ||
1381 | error (_("Symbol cache size is too large, max is %u."), | |
1382 | MAX_SYMBOL_CACHE_SIZE); | |
1383 | } | |
1384 | symbol_cache_size = new_symbol_cache_size; | |
1385 | ||
1386 | set_symbol_cache_size (symbol_cache_size); | |
1387 | } | |
1388 | ||
1389 | /* Lookup symbol NAME,DOMAIN in BLOCK in the symbol cache of PSPACE. | |
1390 | OBJFILE_CONTEXT is the current objfile, which may be NULL. | |
1391 | The result is the symbol if found, SYMBOL_LOOKUP_FAILED if a previous lookup | |
1392 | failed (and thus this one will too), or NULL if the symbol is not present | |
1393 | in the cache. | |
d0509ba4 CB |
1394 | *BSC_PTR and *SLOT_PTR are set to the cache and slot of the symbol, which |
1395 | can be used to save the result of a full lookup attempt. */ | |
f57d2163 | 1396 | |
d12307c1 | 1397 | static struct block_symbol |
f57d2163 | 1398 | symbol_cache_lookup (struct symbol_cache *cache, |
ddbcedf5 | 1399 | struct objfile *objfile_context, enum block_enum block, |
f57d2163 DE |
1400 | const char *name, domain_enum domain, |
1401 | struct block_symbol_cache **bsc_ptr, | |
1402 | struct symbol_cache_slot **slot_ptr) | |
1403 | { | |
1404 | struct block_symbol_cache *bsc; | |
1405 | unsigned int hash; | |
1406 | struct symbol_cache_slot *slot; | |
1407 | ||
1408 | if (block == GLOBAL_BLOCK) | |
1409 | bsc = cache->global_symbols; | |
1410 | else | |
1411 | bsc = cache->static_symbols; | |
1412 | if (bsc == NULL) | |
1413 | { | |
1414 | *bsc_ptr = NULL; | |
1415 | *slot_ptr = NULL; | |
6640a367 | 1416 | return {}; |
f57d2163 DE |
1417 | } |
1418 | ||
1419 | hash = hash_symbol_entry (objfile_context, name, domain); | |
1420 | slot = bsc->symbols + hash % bsc->size; | |
f57d2163 | 1421 | |
d0509ba4 CB |
1422 | *bsc_ptr = bsc; |
1423 | *slot_ptr = slot; | |
1424 | ||
f57d2163 DE |
1425 | if (eq_symbol_entry (slot, objfile_context, name, domain)) |
1426 | { | |
1427 | if (symbol_lookup_debug) | |
6cb06a8c TT |
1428 | gdb_printf (gdb_stdlog, |
1429 | "%s block symbol cache hit%s for %s, %s\n", | |
1430 | block == GLOBAL_BLOCK ? "Global" : "Static", | |
1431 | slot->state == SYMBOL_SLOT_NOT_FOUND | |
1432 | ? " (not found)" : "", | |
1433 | name, domain_name (domain)); | |
f57d2163 DE |
1434 | ++bsc->hits; |
1435 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
1436 | return SYMBOL_LOOKUP_FAILED; | |
1437 | return slot->value.found; | |
1438 | } | |
1439 | ||
2c26b84f DE |
1440 | /* Symbol is not present in the cache. */ |
1441 | ||
f57d2163 DE |
1442 | if (symbol_lookup_debug) |
1443 | { | |
6cb06a8c TT |
1444 | gdb_printf (gdb_stdlog, |
1445 | "%s block symbol cache miss for %s, %s\n", | |
1446 | block == GLOBAL_BLOCK ? "Global" : "Static", | |
1447 | name, domain_name (domain)); | |
f57d2163 DE |
1448 | } |
1449 | ++bsc->misses; | |
6640a367 | 1450 | return {}; |
f57d2163 DE |
1451 | } |
1452 | ||
f57d2163 DE |
1453 | /* Mark SYMBOL as found in SLOT. |
1454 | OBJFILE_CONTEXT is the current objfile when the lookup was done, or NULL | |
1455 | if it's not needed to distinguish lookups (STATIC_BLOCK). It is *not* | |
1456 | necessarily the objfile the symbol was found in. */ | |
1457 | ||
1458 | static void | |
1459 | symbol_cache_mark_found (struct block_symbol_cache *bsc, | |
1460 | struct symbol_cache_slot *slot, | |
1461 | struct objfile *objfile_context, | |
d12307c1 PMR |
1462 | struct symbol *symbol, |
1463 | const struct block *block) | |
f57d2163 DE |
1464 | { |
1465 | if (bsc == NULL) | |
1466 | return; | |
1467 | if (slot->state != SYMBOL_SLOT_UNUSED) | |
1468 | { | |
1469 | ++bsc->collisions; | |
1470 | symbol_cache_clear_slot (slot); | |
1471 | } | |
1472 | slot->state = SYMBOL_SLOT_FOUND; | |
1473 | slot->objfile_context = objfile_context; | |
d12307c1 PMR |
1474 | slot->value.found.symbol = symbol; |
1475 | slot->value.found.block = block; | |
f57d2163 DE |
1476 | } |
1477 | ||
1478 | /* Mark symbol NAME, DOMAIN as not found in SLOT. | |
1479 | OBJFILE_CONTEXT is the current objfile when the lookup was done, or NULL | |
1480 | if it's not needed to distinguish lookups (STATIC_BLOCK). */ | |
1481 | ||
1482 | static void | |
1483 | symbol_cache_mark_not_found (struct block_symbol_cache *bsc, | |
1484 | struct symbol_cache_slot *slot, | |
1485 | struct objfile *objfile_context, | |
1486 | const char *name, domain_enum domain) | |
1487 | { | |
1488 | if (bsc == NULL) | |
1489 | return; | |
1490 | if (slot->state != SYMBOL_SLOT_UNUSED) | |
1491 | { | |
1492 | ++bsc->collisions; | |
1493 | symbol_cache_clear_slot (slot); | |
1494 | } | |
1495 | slot->state = SYMBOL_SLOT_NOT_FOUND; | |
1496 | slot->objfile_context = objfile_context; | |
1497 | slot->value.not_found.name = xstrdup (name); | |
1498 | slot->value.not_found.domain = domain; | |
1499 | } | |
1500 | ||
1501 | /* Flush the symbol cache of PSPACE. */ | |
1502 | ||
1503 | static void | |
1504 | symbol_cache_flush (struct program_space *pspace) | |
1505 | { | |
3017b94d | 1506 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 | 1507 | int pass; |
f57d2163 DE |
1508 | |
1509 | if (cache == NULL) | |
1510 | return; | |
1511 | if (cache->global_symbols == NULL) | |
1512 | { | |
1513 | gdb_assert (symbol_cache_size == 0); | |
1514 | gdb_assert (cache->static_symbols == NULL); | |
1515 | return; | |
1516 | } | |
1517 | ||
1518 | /* If the cache is untouched since the last flush, early exit. | |
1519 | This is important for performance during the startup of a program linked | |
1520 | with 100s (or 1000s) of shared libraries. */ | |
1521 | if (cache->global_symbols->misses == 0 | |
1522 | && cache->static_symbols->misses == 0) | |
1523 | return; | |
1524 | ||
1525 | gdb_assert (cache->global_symbols->size == symbol_cache_size); | |
1526 | gdb_assert (cache->static_symbols->size == symbol_cache_size); | |
1527 | ||
1528 | for (pass = 0; pass < 2; ++pass) | |
1529 | { | |
1530 | struct block_symbol_cache *bsc | |
1531 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1532 | unsigned int i; | |
1533 | ||
1534 | for (i = 0; i < bsc->size; ++i) | |
1535 | symbol_cache_clear_slot (&bsc->symbols[i]); | |
1536 | } | |
1537 | ||
1538 | cache->global_symbols->hits = 0; | |
1539 | cache->global_symbols->misses = 0; | |
1540 | cache->global_symbols->collisions = 0; | |
1541 | cache->static_symbols->hits = 0; | |
1542 | cache->static_symbols->misses = 0; | |
1543 | cache->static_symbols->collisions = 0; | |
1544 | } | |
1545 | ||
1546 | /* Dump CACHE. */ | |
1547 | ||
1548 | static void | |
1549 | symbol_cache_dump (const struct symbol_cache *cache) | |
1550 | { | |
1551 | int pass; | |
1552 | ||
1553 | if (cache->global_symbols == NULL) | |
1554 | { | |
6cb06a8c | 1555 | gdb_printf (" <disabled>\n"); |
f57d2163 DE |
1556 | return; |
1557 | } | |
1558 | ||
1559 | for (pass = 0; pass < 2; ++pass) | |
1560 | { | |
1561 | const struct block_symbol_cache *bsc | |
1562 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1563 | unsigned int i; | |
1564 | ||
1565 | if (pass == 0) | |
6cb06a8c | 1566 | gdb_printf ("Global symbols:\n"); |
f57d2163 | 1567 | else |
6cb06a8c | 1568 | gdb_printf ("Static symbols:\n"); |
f57d2163 DE |
1569 | |
1570 | for (i = 0; i < bsc->size; ++i) | |
1571 | { | |
1572 | const struct symbol_cache_slot *slot = &bsc->symbols[i]; | |
1573 | ||
1574 | QUIT; | |
1575 | ||
1576 | switch (slot->state) | |
1577 | { | |
1578 | case SYMBOL_SLOT_UNUSED: | |
1579 | break; | |
1580 | case SYMBOL_SLOT_NOT_FOUND: | |
6cb06a8c TT |
1581 | gdb_printf (" [%4u] = %s, %s %s (not found)\n", i, |
1582 | host_address_to_string (slot->objfile_context), | |
1583 | slot->value.not_found.name, | |
1584 | domain_name (slot->value.not_found.domain)); | |
f57d2163 DE |
1585 | break; |
1586 | case SYMBOL_SLOT_FOUND: | |
d12307c1 PMR |
1587 | { |
1588 | struct symbol *found = slot->value.found.symbol; | |
1589 | const struct objfile *context = slot->objfile_context; | |
1590 | ||
6cb06a8c TT |
1591 | gdb_printf (" [%4u] = %s, %s %s\n", i, |
1592 | host_address_to_string (context), | |
1593 | found->print_name (), | |
1594 | domain_name (found->domain ())); | |
d12307c1 PMR |
1595 | break; |
1596 | } | |
f57d2163 DE |
1597 | } |
1598 | } | |
1599 | } | |
1600 | } | |
1601 | ||
1602 | /* The "mt print symbol-cache" command. */ | |
1603 | ||
1604 | static void | |
510e5e56 | 1605 | maintenance_print_symbol_cache (const char *args, int from_tty) |
f57d2163 | 1606 | { |
94c93c35 | 1607 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1608 | { |
1609 | struct symbol_cache *cache; | |
1610 | ||
6cb06a8c TT |
1611 | gdb_printf (_("Symbol cache for pspace %d\n%s:\n"), |
1612 | pspace->num, | |
1613 | pspace->symfile_object_file != NULL | |
1614 | ? objfile_name (pspace->symfile_object_file) | |
1615 | : "(no object file)"); | |
f57d2163 DE |
1616 | |
1617 | /* If the cache hasn't been created yet, avoid creating one. */ | |
3017b94d | 1618 | cache = symbol_cache_key.get (pspace); |
f57d2163 | 1619 | if (cache == NULL) |
6cb06a8c | 1620 | gdb_printf (" <empty>\n"); |
f57d2163 DE |
1621 | else |
1622 | symbol_cache_dump (cache); | |
1623 | } | |
1624 | } | |
1625 | ||
1626 | /* The "mt flush-symbol-cache" command. */ | |
1627 | ||
1628 | static void | |
510e5e56 | 1629 | maintenance_flush_symbol_cache (const char *args, int from_tty) |
f57d2163 | 1630 | { |
94c93c35 | 1631 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1632 | { |
1633 | symbol_cache_flush (pspace); | |
1634 | } | |
1635 | } | |
1636 | ||
1637 | /* Print usage statistics of CACHE. */ | |
1638 | ||
1639 | static void | |
1640 | symbol_cache_stats (struct symbol_cache *cache) | |
1641 | { | |
1642 | int pass; | |
1643 | ||
1644 | if (cache->global_symbols == NULL) | |
1645 | { | |
6cb06a8c | 1646 | gdb_printf (" <disabled>\n"); |
f57d2163 DE |
1647 | return; |
1648 | } | |
1649 | ||
1650 | for (pass = 0; pass < 2; ++pass) | |
1651 | { | |
1652 | const struct block_symbol_cache *bsc | |
1653 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1654 | ||
1655 | QUIT; | |
1656 | ||
1657 | if (pass == 0) | |
6cb06a8c | 1658 | gdb_printf ("Global block cache stats:\n"); |
f57d2163 | 1659 | else |
6cb06a8c | 1660 | gdb_printf ("Static block cache stats:\n"); |
f57d2163 | 1661 | |
6cb06a8c TT |
1662 | gdb_printf (" size: %u\n", bsc->size); |
1663 | gdb_printf (" hits: %u\n", bsc->hits); | |
1664 | gdb_printf (" misses: %u\n", bsc->misses); | |
1665 | gdb_printf (" collisions: %u\n", bsc->collisions); | |
f57d2163 DE |
1666 | } |
1667 | } | |
1668 | ||
1669 | /* The "mt print symbol-cache-statistics" command. */ | |
1670 | ||
1671 | static void | |
510e5e56 | 1672 | maintenance_print_symbol_cache_statistics (const char *args, int from_tty) |
f57d2163 | 1673 | { |
94c93c35 | 1674 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1675 | { |
1676 | struct symbol_cache *cache; | |
1677 | ||
6cb06a8c TT |
1678 | gdb_printf (_("Symbol cache statistics for pspace %d\n%s:\n"), |
1679 | pspace->num, | |
1680 | pspace->symfile_object_file != NULL | |
1681 | ? objfile_name (pspace->symfile_object_file) | |
1682 | : "(no object file)"); | |
f57d2163 DE |
1683 | |
1684 | /* If the cache hasn't been created yet, avoid creating one. */ | |
3017b94d | 1685 | cache = symbol_cache_key.get (pspace); |
f57d2163 | 1686 | if (cache == NULL) |
6cb06a8c | 1687 | gdb_printf (" empty, no stats available\n"); |
f57d2163 DE |
1688 | else |
1689 | symbol_cache_stats (cache); | |
1690 | } | |
1691 | } | |
1692 | ||
1693 | /* This module's 'new_objfile' observer. */ | |
1694 | ||
1695 | static void | |
1696 | symtab_new_objfile_observer (struct objfile *objfile) | |
1697 | { | |
1698 | /* Ideally we'd use OBJFILE->pspace, but OBJFILE may be NULL. */ | |
1699 | symbol_cache_flush (current_program_space); | |
1700 | } | |
1701 | ||
1702 | /* This module's 'free_objfile' observer. */ | |
1703 | ||
1704 | static void | |
1705 | symtab_free_objfile_observer (struct objfile *objfile) | |
1706 | { | |
1707 | symbol_cache_flush (objfile->pspace); | |
1708 | } | |
1709 | \f | |
c906108c SS |
1710 | /* Debug symbols usually don't have section information. We need to dig that |
1711 | out of the minimal symbols and stash that in the debug symbol. */ | |
1712 | ||
ccefe4c4 | 1713 | void |
907fc202 UW |
1714 | fixup_section (struct general_symbol_info *ginfo, |
1715 | CORE_ADDR addr, struct objfile *objfile) | |
c906108c SS |
1716 | { |
1717 | struct minimal_symbol *msym; | |
c906108c | 1718 | |
bccdca4a UW |
1719 | /* First, check whether a minimal symbol with the same name exists |
1720 | and points to the same address. The address check is required | |
1721 | e.g. on PowerPC64, where the minimal symbol for a function will | |
1722 | point to the function descriptor, while the debug symbol will | |
1723 | point to the actual function code. */ | |
4d4eaa30 CB |
1724 | msym = lookup_minimal_symbol_by_pc_name (addr, ginfo->linkage_name (), |
1725 | objfile); | |
907fc202 | 1726 | if (msym) |
a52d653e | 1727 | ginfo->set_section_index (msym->section_index ()); |
907fc202 | 1728 | else |
19e2d14b KB |
1729 | { |
1730 | /* Static, function-local variables do appear in the linker | |
1731 | (minimal) symbols, but are frequently given names that won't | |
1732 | be found via lookup_minimal_symbol(). E.g., it has been | |
1733 | observed in frv-uclinux (ELF) executables that a static, | |
1734 | function-local variable named "foo" might appear in the | |
1735 | linker symbols as "foo.6" or "foo.3". Thus, there is no | |
1736 | point in attempting to extend the lookup-by-name mechanism to | |
1737 | handle this case due to the fact that there can be multiple | |
1738 | names. | |
9af17804 | 1739 | |
19e2d14b KB |
1740 | So, instead, search the section table when lookup by name has |
1741 | failed. The ``addr'' and ``endaddr'' fields may have already | |
6a053cb1 TT |
1742 | been relocated. If so, the relocation offset needs to be |
1743 | subtracted from these values when performing the comparison. | |
1744 | We unconditionally subtract it, because, when no relocation | |
1745 | has been performed, the value will simply be zero. | |
9af17804 | 1746 | |
19e2d14b KB |
1747 | The address of the symbol whose section we're fixing up HAS |
1748 | NOT BEEN adjusted (relocated) yet. It can't have been since | |
1749 | the section isn't yet known and knowing the section is | |
1750 | necessary in order to add the correct relocation value. In | |
1751 | other words, we wouldn't even be in this function (attempting | |
1752 | to compute the section) if it were already known. | |
1753 | ||
1754 | Note that it is possible to search the minimal symbols | |
1755 | (subtracting the relocation value if necessary) to find the | |
1756 | matching minimal symbol, but this is overkill and much less | |
1757 | efficient. It is not necessary to find the matching minimal | |
9af17804 DE |
1758 | symbol, only its section. |
1759 | ||
19e2d14b KB |
1760 | Note that this technique (of doing a section table search) |
1761 | can fail when unrelocated section addresses overlap. For | |
1762 | this reason, we still attempt a lookup by name prior to doing | |
1763 | a search of the section table. */ | |
9af17804 | 1764 | |
19e2d14b | 1765 | struct obj_section *s; |
e27d198c | 1766 | int fallback = -1; |
433759f7 | 1767 | |
19e2d14b KB |
1768 | ALL_OBJFILE_OSECTIONS (objfile, s) |
1769 | { | |
65cf3563 | 1770 | int idx = s - objfile->sections; |
6a053cb1 | 1771 | CORE_ADDR offset = objfile->section_offsets[idx]; |
19e2d14b | 1772 | |
e27d198c TT |
1773 | if (fallback == -1) |
1774 | fallback = idx; | |
1775 | ||
0c1bcd23 | 1776 | if (s->addr () - offset <= addr && addr < s->endaddr () - offset) |
19e2d14b | 1777 | { |
a52d653e | 1778 | ginfo->set_section_index (idx); |
19e2d14b KB |
1779 | return; |
1780 | } | |
1781 | } | |
e27d198c TT |
1782 | |
1783 | /* If we didn't find the section, assume it is in the first | |
1784 | section. If there is no allocated section, then it hardly | |
1785 | matters what we pick, so just pick zero. */ | |
1786 | if (fallback == -1) | |
a52d653e | 1787 | ginfo->set_section_index (0); |
e27d198c | 1788 | else |
a52d653e | 1789 | ginfo->set_section_index (fallback); |
19e2d14b | 1790 | } |
c906108c SS |
1791 | } |
1792 | ||
1793 | struct symbol * | |
fba45db2 | 1794 | fixup_symbol_section (struct symbol *sym, struct objfile *objfile) |
c906108c | 1795 | { |
907fc202 UW |
1796 | CORE_ADDR addr; |
1797 | ||
c906108c SS |
1798 | if (!sym) |
1799 | return NULL; | |
1800 | ||
7b3ecc75 | 1801 | if (!sym->is_objfile_owned ()) |
1994afbf DE |
1802 | return sym; |
1803 | ||
907fc202 UW |
1804 | /* We either have an OBJFILE, or we can get at it from the sym's |
1805 | symtab. Anything else is a bug. */ | |
4206d69e | 1806 | gdb_assert (objfile || sym->symtab ()); |
907fc202 UW |
1807 | |
1808 | if (objfile == NULL) | |
e19b2d94 | 1809 | objfile = sym->objfile (); |
907fc202 | 1810 | |
ebbc3a7d | 1811 | if (sym->obj_section (objfile) != nullptr) |
e27d198c TT |
1812 | return sym; |
1813 | ||
907fc202 UW |
1814 | /* We should have an objfile by now. */ |
1815 | gdb_assert (objfile); | |
1816 | ||
66d7f48f | 1817 | switch (sym->aclass ()) |
907fc202 UW |
1818 | { |
1819 | case LOC_STATIC: | |
1820 | case LOC_LABEL: | |
4aeddc50 | 1821 | addr = sym->value_address (); |
907fc202 UW |
1822 | break; |
1823 | case LOC_BLOCK: | |
6395b628 | 1824 | addr = sym->value_block ()->entry_pc (); |
907fc202 UW |
1825 | break; |
1826 | ||
1827 | default: | |
1828 | /* Nothing else will be listed in the minsyms -- no use looking | |
1829 | it up. */ | |
1830 | return sym; | |
1831 | } | |
1832 | ||
468c0cbb | 1833 | fixup_section (sym, addr, objfile); |
c906108c SS |
1834 | |
1835 | return sym; | |
1836 | } | |
1837 | ||
b5ec771e PA |
1838 | /* See symtab.h. */ |
1839 | ||
1840 | demangle_for_lookup_info::demangle_for_lookup_info | |
1841 | (const lookup_name_info &lookup_name, language lang) | |
1842 | { | |
1843 | demangle_result_storage storage; | |
1844 | ||
c62446b1 PA |
1845 | if (lookup_name.ignore_parameters () && lang == language_cplus) |
1846 | { | |
1847 | gdb::unique_xmalloc_ptr<char> without_params | |
e0802d59 | 1848 | = cp_remove_params_if_any (lookup_name.c_str (), |
c62446b1 PA |
1849 | lookup_name.completion_mode ()); |
1850 | ||
1851 | if (without_params != NULL) | |
1852 | { | |
de63c46b PA |
1853 | if (lookup_name.match_type () != symbol_name_match_type::SEARCH_NAME) |
1854 | m_demangled_name = demangle_for_lookup (without_params.get (), | |
1855 | lang, storage); | |
c62446b1 PA |
1856 | return; |
1857 | } | |
1858 | } | |
1859 | ||
de63c46b | 1860 | if (lookup_name.match_type () == symbol_name_match_type::SEARCH_NAME) |
e0802d59 | 1861 | m_demangled_name = lookup_name.c_str (); |
de63c46b | 1862 | else |
e0802d59 | 1863 | m_demangled_name = demangle_for_lookup (lookup_name.c_str (), |
de63c46b | 1864 | lang, storage); |
b5ec771e PA |
1865 | } |
1866 | ||
1867 | /* See symtab.h. */ | |
1868 | ||
1869 | const lookup_name_info & | |
1870 | lookup_name_info::match_any () | |
1871 | { | |
1872 | /* Lookup any symbol that "" would complete. I.e., this matches all | |
1873 | symbol names. */ | |
e0802d59 | 1874 | static const lookup_name_info lookup_name ("", symbol_name_match_type::FULL, |
b5ec771e PA |
1875 | true); |
1876 | ||
1877 | return lookup_name; | |
1878 | } | |
1879 | ||
f8eba3c6 | 1880 | /* Compute the demangled form of NAME as used by the various symbol |
2f408ecb PA |
1881 | lookup functions. The result can either be the input NAME |
1882 | directly, or a pointer to a buffer owned by the STORAGE object. | |
f8eba3c6 | 1883 | |
2f408ecb | 1884 | For Ada, this function just returns NAME, unmodified. |
f8eba3c6 TT |
1885 | Normally, Ada symbol lookups are performed using the encoded name |
1886 | rather than the demangled name, and so it might seem to make sense | |
1887 | for this function to return an encoded version of NAME. | |
1888 | Unfortunately, we cannot do this, because this function is used in | |
1889 | circumstances where it is not appropriate to try to encode NAME. | |
1890 | For instance, when displaying the frame info, we demangle the name | |
1891 | of each parameter, and then perform a symbol lookup inside our | |
1892 | function using that demangled name. In Ada, certain functions | |
1893 | have internally-generated parameters whose name contain uppercase | |
1894 | characters. Encoding those name would result in those uppercase | |
1895 | characters to become lowercase, and thus cause the symbol lookup | |
1896 | to fail. */ | |
c906108c | 1897 | |
2f408ecb | 1898 | const char * |
f8eba3c6 | 1899 | demangle_for_lookup (const char *name, enum language lang, |
2f408ecb | 1900 | demangle_result_storage &storage) |
c906108c | 1901 | { |
9c37b5ae | 1902 | /* If we are using C++, D, or Go, demangle the name before doing a |
c378eb4e | 1903 | lookup, so we can always binary search. */ |
53c5240f | 1904 | if (lang == language_cplus) |
729051e6 | 1905 | { |
3456e70c TT |
1906 | gdb::unique_xmalloc_ptr<char> demangled_name |
1907 | = gdb_demangle (name, DMGL_ANSI | DMGL_PARAMS); | |
2f408ecb | 1908 | if (demangled_name != NULL) |
3456e70c | 1909 | return storage.set_malloc_ptr (std::move (demangled_name)); |
2f408ecb PA |
1910 | |
1911 | /* If we were given a non-mangled name, canonicalize it | |
1912 | according to the language (so far only for C++). */ | |
596dc4ad TT |
1913 | gdb::unique_xmalloc_ptr<char> canon = cp_canonicalize_string (name); |
1914 | if (canon != nullptr) | |
1915 | return storage.set_malloc_ptr (std::move (canon)); | |
729051e6 | 1916 | } |
6aecb9c2 JB |
1917 | else if (lang == language_d) |
1918 | { | |
3456e70c | 1919 | gdb::unique_xmalloc_ptr<char> demangled_name = d_demangle (name, 0); |
2f408ecb | 1920 | if (demangled_name != NULL) |
3456e70c | 1921 | return storage.set_malloc_ptr (std::move (demangled_name)); |
6aecb9c2 | 1922 | } |
a766d390 DE |
1923 | else if (lang == language_go) |
1924 | { | |
3456e70c | 1925 | gdb::unique_xmalloc_ptr<char> demangled_name |
82fc57fd | 1926 | = language_def (language_go)->demangle_symbol (name, 0); |
2f408ecb | 1927 | if (demangled_name != NULL) |
3456e70c | 1928 | return storage.set_malloc_ptr (std::move (demangled_name)); |
a766d390 | 1929 | } |
729051e6 | 1930 | |
2f408ecb | 1931 | return name; |
f8eba3c6 TT |
1932 | } |
1933 | ||
5ffa0793 PA |
1934 | /* See symtab.h. */ |
1935 | ||
1936 | unsigned int | |
1937 | search_name_hash (enum language language, const char *search_name) | |
1938 | { | |
fb8006fd | 1939 | return language_def (language)->search_name_hash (search_name); |
5ffa0793 PA |
1940 | } |
1941 | ||
cf901d3b | 1942 | /* See symtab.h. |
f8eba3c6 | 1943 | |
cf901d3b | 1944 | This function (or rather its subordinates) have a bunch of loops and |
7e082072 DE |
1945 | it would seem to be attractive to put in some QUIT's (though I'm not really |
1946 | sure whether it can run long enough to be really important). But there | |
f8eba3c6 | 1947 | are a few calls for which it would appear to be bad news to quit |
7e082072 | 1948 | out of here: e.g., find_proc_desc in alpha-mdebug-tdep.c. (Note |
f8eba3c6 TT |
1949 | that there is C++ code below which can error(), but that probably |
1950 | doesn't affect these calls since they are looking for a known | |
1951 | variable and thus can probably assume it will never hit the C++ | |
1952 | code). */ | |
1953 | ||
d12307c1 | 1954 | struct block_symbol |
f8eba3c6 TT |
1955 | lookup_symbol_in_language (const char *name, const struct block *block, |
1956 | const domain_enum domain, enum language lang, | |
1993b719 | 1957 | struct field_of_this_result *is_a_field_of_this) |
f8eba3c6 | 1958 | { |
2f408ecb PA |
1959 | demangle_result_storage storage; |
1960 | const char *modified_name = demangle_for_lookup (name, lang, storage); | |
f8eba3c6 | 1961 | |
de63c46b PA |
1962 | return lookup_symbol_aux (modified_name, |
1963 | symbol_name_match_type::FULL, | |
1964 | block, domain, lang, | |
2f408ecb | 1965 | is_a_field_of_this); |
fba7f19c EZ |
1966 | } |
1967 | ||
cf901d3b | 1968 | /* See symtab.h. */ |
53c5240f | 1969 | |
d12307c1 | 1970 | struct block_symbol |
53c5240f | 1971 | lookup_symbol (const char *name, const struct block *block, |
1993b719 TT |
1972 | domain_enum domain, |
1973 | struct field_of_this_result *is_a_field_of_this) | |
53c5240f PA |
1974 | { |
1975 | return lookup_symbol_in_language (name, block, domain, | |
1976 | current_language->la_language, | |
2570f2b7 | 1977 | is_a_field_of_this); |
53c5240f PA |
1978 | } |
1979 | ||
cf901d3b | 1980 | /* See symtab.h. */ |
66a17cb6 | 1981 | |
de63c46b PA |
1982 | struct block_symbol |
1983 | lookup_symbol_search_name (const char *search_name, const struct block *block, | |
1984 | domain_enum domain) | |
1985 | { | |
1986 | return lookup_symbol_aux (search_name, symbol_name_match_type::SEARCH_NAME, | |
1987 | block, domain, language_asm, NULL); | |
1988 | } | |
1989 | ||
1990 | /* See symtab.h. */ | |
1991 | ||
d12307c1 | 1992 | struct block_symbol |
66a17cb6 TT |
1993 | lookup_language_this (const struct language_defn *lang, |
1994 | const struct block *block) | |
1995 | { | |
5bae7c4e | 1996 | if (lang->name_of_this () == NULL || block == NULL) |
6640a367 | 1997 | return {}; |
66a17cb6 | 1998 | |
cc485e62 DE |
1999 | if (symbol_lookup_debug > 1) |
2000 | { | |
d6bc0792 | 2001 | struct objfile *objfile = block_objfile (block); |
cc485e62 | 2002 | |
6cb06a8c TT |
2003 | gdb_printf (gdb_stdlog, |
2004 | "lookup_language_this (%s, %s (objfile %s))", | |
2005 | lang->name (), host_address_to_string (block), | |
2006 | objfile_debug_name (objfile)); | |
cc485e62 DE |
2007 | } |
2008 | ||
03de6823 | 2009 | while (block) |
66a17cb6 TT |
2010 | { |
2011 | struct symbol *sym; | |
2012 | ||
5bae7c4e | 2013 | sym = block_lookup_symbol (block, lang->name_of_this (), |
de63c46b PA |
2014 | symbol_name_match_type::SEARCH_NAME, |
2015 | VAR_DOMAIN); | |
66a17cb6 | 2016 | if (sym != NULL) |
f149aabd | 2017 | { |
cc485e62 DE |
2018 | if (symbol_lookup_debug > 1) |
2019 | { | |
6cb06a8c TT |
2020 | gdb_printf (gdb_stdlog, " = %s (%s, block %s)\n", |
2021 | sym->print_name (), | |
2022 | host_address_to_string (sym), | |
2023 | host_address_to_string (block)); | |
cc485e62 | 2024 | } |
d12307c1 | 2025 | return (struct block_symbol) {sym, block}; |
f149aabd | 2026 | } |
6c00f721 | 2027 | if (block->function ()) |
03de6823 | 2028 | break; |
f135fe72 | 2029 | block = block->superblock (); |
66a17cb6 | 2030 | } |
03de6823 | 2031 | |
cc485e62 | 2032 | if (symbol_lookup_debug > 1) |
6cb06a8c | 2033 | gdb_printf (gdb_stdlog, " = NULL\n"); |
6640a367 | 2034 | return {}; |
66a17cb6 TT |
2035 | } |
2036 | ||
2dc3df72 TT |
2037 | /* Given TYPE, a structure/union, |
2038 | return 1 if the component named NAME from the ultimate target | |
2039 | structure/union is defined, otherwise, return 0. */ | |
2040 | ||
2041 | static int | |
1993b719 TT |
2042 | check_field (struct type *type, const char *name, |
2043 | struct field_of_this_result *is_a_field_of_this) | |
2dc3df72 TT |
2044 | { |
2045 | int i; | |
2046 | ||
2047 | /* The type may be a stub. */ | |
f168693b | 2048 | type = check_typedef (type); |
2dc3df72 | 2049 | |
1f704f76 | 2050 | for (i = type->num_fields () - 1; i >= TYPE_N_BASECLASSES (type); i--) |
2dc3df72 | 2051 | { |
33d16dd9 | 2052 | const char *t_field_name = type->field (i).name (); |
2dc3df72 TT |
2053 | |
2054 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) | |
1993b719 TT |
2055 | { |
2056 | is_a_field_of_this->type = type; | |
ceacbf6e | 2057 | is_a_field_of_this->field = &type->field (i); |
1993b719 TT |
2058 | return 1; |
2059 | } | |
2dc3df72 TT |
2060 | } |
2061 | ||
2062 | /* C++: If it was not found as a data field, then try to return it | |
2063 | as a pointer to a method. */ | |
2064 | ||
2065 | for (i = TYPE_NFN_FIELDS (type) - 1; i >= 0; --i) | |
2066 | { | |
2067 | if (strcmp_iw (TYPE_FN_FIELDLIST_NAME (type, i), name) == 0) | |
1993b719 TT |
2068 | { |
2069 | is_a_field_of_this->type = type; | |
2070 | is_a_field_of_this->fn_field = &TYPE_FN_FIELDLIST (type, i); | |
2071 | return 1; | |
2072 | } | |
2dc3df72 TT |
2073 | } |
2074 | ||
2075 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1993b719 | 2076 | if (check_field (TYPE_BASECLASS (type, i), name, is_a_field_of_this)) |
2dc3df72 TT |
2077 | return 1; |
2078 | ||
2079 | return 0; | |
2080 | } | |
2081 | ||
53c5240f | 2082 | /* Behave like lookup_symbol except that NAME is the natural name |
7e082072 | 2083 | (e.g., demangled name) of the symbol that we're looking for. */ |
5ad1c190 | 2084 | |
d12307c1 | 2085 | static struct block_symbol |
de63c46b PA |
2086 | lookup_symbol_aux (const char *name, symbol_name_match_type match_type, |
2087 | const struct block *block, | |
94af9270 | 2088 | const domain_enum domain, enum language language, |
1993b719 | 2089 | struct field_of_this_result *is_a_field_of_this) |
fba7f19c | 2090 | { |
d12307c1 | 2091 | struct block_symbol result; |
53c5240f | 2092 | const struct language_defn *langdef; |
406bc4de | 2093 | |
cc485e62 DE |
2094 | if (symbol_lookup_debug) |
2095 | { | |
d6bc0792 TT |
2096 | struct objfile *objfile = (block == nullptr |
2097 | ? nullptr : block_objfile (block)); | |
cc485e62 | 2098 | |
6cb06a8c TT |
2099 | gdb_printf (gdb_stdlog, |
2100 | "lookup_symbol_aux (%s, %s (objfile %s), %s, %s)\n", | |
2101 | name, host_address_to_string (block), | |
2102 | objfile != NULL | |
2103 | ? objfile_debug_name (objfile) : "NULL", | |
2104 | domain_name (domain), language_str (language)); | |
cc485e62 DE |
2105 | } |
2106 | ||
9a146a11 EZ |
2107 | /* Make sure we do something sensible with is_a_field_of_this, since |
2108 | the callers that set this parameter to some non-null value will | |
1993b719 TT |
2109 | certainly use it later. If we don't set it, the contents of |
2110 | is_a_field_of_this are undefined. */ | |
9a146a11 | 2111 | if (is_a_field_of_this != NULL) |
1993b719 | 2112 | memset (is_a_field_of_this, 0, sizeof (*is_a_field_of_this)); |
9a146a11 | 2113 | |
e4051eeb DC |
2114 | /* Search specified block and its superiors. Don't search |
2115 | STATIC_BLOCK or GLOBAL_BLOCK. */ | |
c906108c | 2116 | |
de63c46b | 2117 | result = lookup_local_symbol (name, match_type, block, domain, language); |
d12307c1 | 2118 | if (result.symbol != NULL) |
cc485e62 DE |
2119 | { |
2120 | if (symbol_lookup_debug) | |
2121 | { | |
6cb06a8c TT |
2122 | gdb_printf (gdb_stdlog, "lookup_symbol_aux (...) = %s\n", |
2123 | host_address_to_string (result.symbol)); | |
cc485e62 | 2124 | } |
d12307c1 | 2125 | return result; |
cc485e62 | 2126 | } |
c906108c | 2127 | |
53c5240f | 2128 | /* If requested to do so by the caller and if appropriate for LANGUAGE, |
13387711 | 2129 | check to see if NAME is a field of `this'. */ |
53c5240f PA |
2130 | |
2131 | langdef = language_def (language); | |
5f9a71c3 | 2132 | |
6592e36f TT |
2133 | /* Don't do this check if we are searching for a struct. It will |
2134 | not be found by check_field, but will be found by other | |
2135 | means. */ | |
2136 | if (is_a_field_of_this != NULL && domain != STRUCT_DOMAIN) | |
c906108c | 2137 | { |
d12307c1 | 2138 | result = lookup_language_this (langdef, block); |
2b2d9e11 | 2139 | |
d12307c1 | 2140 | if (result.symbol) |
c906108c | 2141 | { |
5f9c5a63 | 2142 | struct type *t = result.symbol->type (); |
9af17804 | 2143 | |
2b2d9e11 VP |
2144 | /* I'm not really sure that type of this can ever |
2145 | be typedefed; just be safe. */ | |
f168693b | 2146 | t = check_typedef (t); |
809f3be1 | 2147 | if (t->is_pointer_or_reference ()) |
2b2d9e11 | 2148 | t = TYPE_TARGET_TYPE (t); |
9af17804 | 2149 | |
78134374 SM |
2150 | if (t->code () != TYPE_CODE_STRUCT |
2151 | && t->code () != TYPE_CODE_UNION) | |
9af17804 | 2152 | error (_("Internal error: `%s' is not an aggregate"), |
5bae7c4e | 2153 | langdef->name_of_this ()); |
9af17804 | 2154 | |
1993b719 | 2155 | if (check_field (t, name, is_a_field_of_this)) |
cc485e62 DE |
2156 | { |
2157 | if (symbol_lookup_debug) | |
2158 | { | |
6cb06a8c TT |
2159 | gdb_printf (gdb_stdlog, |
2160 | "lookup_symbol_aux (...) = NULL\n"); | |
cc485e62 | 2161 | } |
6640a367 | 2162 | return {}; |
cc485e62 | 2163 | } |
c906108c SS |
2164 | } |
2165 | } | |
2166 | ||
53c5240f | 2167 | /* Now do whatever is appropriate for LANGUAGE to look |
774b6a14 | 2168 | up static and global variables. */ |
c906108c | 2169 | |
a78a19b1 | 2170 | result = langdef->lookup_symbol_nonlocal (name, block, domain); |
d12307c1 | 2171 | if (result.symbol != NULL) |
cc485e62 DE |
2172 | { |
2173 | if (symbol_lookup_debug) | |
2174 | { | |
6cb06a8c TT |
2175 | gdb_printf (gdb_stdlog, "lookup_symbol_aux (...) = %s\n", |
2176 | host_address_to_string (result.symbol)); | |
cc485e62 | 2177 | } |
d12307c1 | 2178 | return result; |
cc485e62 | 2179 | } |
c906108c | 2180 | |
774b6a14 TT |
2181 | /* Now search all static file-level symbols. Not strictly correct, |
2182 | but more useful than an error. */ | |
41f62f39 | 2183 | |
d12307c1 | 2184 | result = lookup_static_symbol (name, domain); |
cc485e62 DE |
2185 | if (symbol_lookup_debug) |
2186 | { | |
6cb06a8c TT |
2187 | gdb_printf (gdb_stdlog, "lookup_symbol_aux (...) = %s\n", |
2188 | result.symbol != NULL | |
2189 | ? host_address_to_string (result.symbol) | |
2190 | : "NULL"); | |
cc485e62 | 2191 | } |
d12307c1 | 2192 | return result; |
41f62f39 JK |
2193 | } |
2194 | ||
e4051eeb | 2195 | /* Check to see if the symbol is defined in BLOCK or its superiors. |
89a9d1b1 | 2196 | Don't search STATIC_BLOCK or GLOBAL_BLOCK. */ |
8155455b | 2197 | |
d12307c1 | 2198 | static struct block_symbol |
de63c46b PA |
2199 | lookup_local_symbol (const char *name, |
2200 | symbol_name_match_type match_type, | |
2201 | const struct block *block, | |
74016e12 DE |
2202 | const domain_enum domain, |
2203 | enum language language) | |
8155455b DC |
2204 | { |
2205 | struct symbol *sym; | |
89a9d1b1 | 2206 | const struct block *static_block = block_static_block (block); |
13387711 SW |
2207 | const char *scope = block_scope (block); |
2208 | ||
e4051eeb DC |
2209 | /* Check if either no block is specified or it's a global block. */ |
2210 | ||
89a9d1b1 | 2211 | if (static_block == NULL) |
6640a367 | 2212 | return {}; |
e4051eeb | 2213 | |
89a9d1b1 | 2214 | while (block != static_block) |
f61e8913 | 2215 | { |
de63c46b | 2216 | sym = lookup_symbol_in_block (name, match_type, block, domain); |
f61e8913 | 2217 | if (sym != NULL) |
d12307c1 | 2218 | return (struct block_symbol) {sym, block}; |
edb3359d | 2219 | |
f55ee35c | 2220 | if (language == language_cplus || language == language_fortran) |
dda83cd7 SM |
2221 | { |
2222 | struct block_symbol blocksym | |
d12307c1 PMR |
2223 | = cp_lookup_symbol_imports_or_template (scope, name, block, |
2224 | domain); | |
2225 | ||
dda83cd7 SM |
2226 | if (blocksym.symbol != NULL) |
2227 | return blocksym; | |
2228 | } | |
13387711 | 2229 | |
6c00f721 | 2230 | if (block->function () != NULL && block_inlined_p (block)) |
edb3359d | 2231 | break; |
f135fe72 | 2232 | block = block->superblock (); |
f61e8913 DC |
2233 | } |
2234 | ||
3aee438b | 2235 | /* We've reached the end of the function without finding a result. */ |
e4051eeb | 2236 | |
6640a367 | 2237 | return {}; |
f61e8913 DC |
2238 | } |
2239 | ||
cf901d3b | 2240 | /* See symtab.h. */ |
3a40aaa0 | 2241 | |
5f9a71c3 | 2242 | struct symbol * |
de63c46b PA |
2243 | lookup_symbol_in_block (const char *name, symbol_name_match_type match_type, |
2244 | const struct block *block, | |
d1a2d36d | 2245 | const domain_enum domain) |
f61e8913 DC |
2246 | { |
2247 | struct symbol *sym; | |
f61e8913 | 2248 | |
cc485e62 DE |
2249 | if (symbol_lookup_debug > 1) |
2250 | { | |
d6bc0792 TT |
2251 | struct objfile *objfile = (block == nullptr |
2252 | ? nullptr : block_objfile (block)); | |
cc485e62 | 2253 | |
6cb06a8c TT |
2254 | gdb_printf (gdb_stdlog, |
2255 | "lookup_symbol_in_block (%s, %s (objfile %s), %s)", | |
2256 | name, host_address_to_string (block), | |
2257 | objfile_debug_name (objfile), | |
2258 | domain_name (domain)); | |
cc485e62 DE |
2259 | } |
2260 | ||
de63c46b | 2261 | sym = block_lookup_symbol (block, name, match_type, domain); |
f61e8913 | 2262 | if (sym) |
8155455b | 2263 | { |
cc485e62 DE |
2264 | if (symbol_lookup_debug > 1) |
2265 | { | |
6cb06a8c TT |
2266 | gdb_printf (gdb_stdlog, " = %s\n", |
2267 | host_address_to_string (sym)); | |
cc485e62 | 2268 | } |
21b556f4 | 2269 | return fixup_symbol_section (sym, NULL); |
8155455b DC |
2270 | } |
2271 | ||
cc485e62 | 2272 | if (symbol_lookup_debug > 1) |
6cb06a8c | 2273 | gdb_printf (gdb_stdlog, " = NULL\n"); |
8155455b DC |
2274 | return NULL; |
2275 | } | |
2276 | ||
cf901d3b | 2277 | /* See symtab.h. */ |
3a40aaa0 | 2278 | |
d12307c1 | 2279 | struct block_symbol |
efad9b6a | 2280 | lookup_global_symbol_from_objfile (struct objfile *main_objfile, |
442853af | 2281 | enum block_enum block_index, |
3a40aaa0 | 2282 | const char *name, |
21b556f4 | 2283 | const domain_enum domain) |
3a40aaa0 | 2284 | { |
442853af CB |
2285 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2286 | ||
bde09ab7 | 2287 | for (objfile *objfile : main_objfile->separate_debug_objfiles ()) |
15d123c9 | 2288 | { |
d12307c1 | 2289 | struct block_symbol result |
dda83cd7 | 2290 | = lookup_symbol_in_objfile (objfile, block_index, name, domain); |
15d123c9 | 2291 | |
442853af | 2292 | if (result.symbol != nullptr) |
d12307c1 | 2293 | return result; |
15d123c9 | 2294 | } |
56e3f43c | 2295 | |
6640a367 | 2296 | return {}; |
3a40aaa0 UW |
2297 | } |
2298 | ||
19630284 JB |
2299 | /* Check to see if the symbol is defined in one of the OBJFILE's |
2300 | symtabs. BLOCK_INDEX should be either GLOBAL_BLOCK or STATIC_BLOCK, | |
8155455b DC |
2301 | depending on whether or not we want to search global symbols or |
2302 | static symbols. */ | |
2303 | ||
d12307c1 | 2304 | static struct block_symbol |
c32e6a04 CB |
2305 | lookup_symbol_in_objfile_symtabs (struct objfile *objfile, |
2306 | enum block_enum block_index, const char *name, | |
2307 | const domain_enum domain) | |
19630284 | 2308 | { |
ba715d7f JK |
2309 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2310 | ||
cc485e62 DE |
2311 | if (symbol_lookup_debug > 1) |
2312 | { | |
6cb06a8c TT |
2313 | gdb_printf (gdb_stdlog, |
2314 | "lookup_symbol_in_objfile_symtabs (%s, %s, %s, %s)", | |
2315 | objfile_debug_name (objfile), | |
2316 | block_index == GLOBAL_BLOCK | |
2317 | ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
2318 | name, domain_name (domain)); | |
cc485e62 DE |
2319 | } |
2320 | ||
de82891c TV |
2321 | struct block_symbol other; |
2322 | other.symbol = NULL; | |
b669c953 | 2323 | for (compunit_symtab *cust : objfile->compunits ()) |
a743abeb | 2324 | { |
43f3e411 DE |
2325 | const struct blockvector *bv; |
2326 | const struct block *block; | |
d12307c1 | 2327 | struct block_symbol result; |
43f3e411 | 2328 | |
af39c5c8 | 2329 | bv = cust->blockvector (); |
63d609de | 2330 | block = bv->block (block_index); |
d12307c1 PMR |
2331 | result.symbol = block_lookup_symbol_primary (block, name, domain); |
2332 | result.block = block; | |
de82891c TV |
2333 | if (result.symbol == NULL) |
2334 | continue; | |
2335 | if (best_symbol (result.symbol, domain)) | |
a743abeb | 2336 | { |
de82891c TV |
2337 | other = result; |
2338 | break; | |
2339 | } | |
2340 | if (symbol_matches_domain (result.symbol->language (), | |
6c9c307c | 2341 | result.symbol->domain (), domain)) |
de82891c TV |
2342 | { |
2343 | struct symbol *better | |
2344 | = better_symbol (other.symbol, result.symbol, domain); | |
2345 | if (better != other.symbol) | |
cc485e62 | 2346 | { |
de82891c TV |
2347 | other.symbol = better; |
2348 | other.block = block; | |
cc485e62 | 2349 | } |
de82891c TV |
2350 | } |
2351 | } | |
d12307c1 | 2352 | |
de82891c TV |
2353 | if (other.symbol != NULL) |
2354 | { | |
2355 | if (symbol_lookup_debug > 1) | |
2356 | { | |
6cb06a8c TT |
2357 | gdb_printf (gdb_stdlog, " = %s (block %s)\n", |
2358 | host_address_to_string (other.symbol), | |
2359 | host_address_to_string (other.block)); | |
a743abeb | 2360 | } |
de82891c TV |
2361 | other.symbol = fixup_symbol_section (other.symbol, objfile); |
2362 | return other; | |
a743abeb | 2363 | } |
19630284 | 2364 | |
cc485e62 | 2365 | if (symbol_lookup_debug > 1) |
6cb06a8c | 2366 | gdb_printf (gdb_stdlog, " = NULL\n"); |
6640a367 | 2367 | return {}; |
19630284 JB |
2368 | } |
2369 | ||
74016e12 | 2370 | /* Wrapper around lookup_symbol_in_objfile_symtabs for search_symbols. |
422d65e7 | 2371 | Look up LINKAGE_NAME in DOMAIN in the global and static blocks of OBJFILE |
01465b56 DE |
2372 | and all associated separate debug objfiles. |
2373 | ||
2374 | Normally we only look in OBJFILE, and not any separate debug objfiles | |
2375 | because the outer loop will cause them to be searched too. This case is | |
2376 | different. Here we're called from search_symbols where it will only | |
6471e7d2 | 2377 | call us for the objfile that contains a matching minsym. */ |
422d65e7 | 2378 | |
d12307c1 | 2379 | static struct block_symbol |
422d65e7 DE |
2380 | lookup_symbol_in_objfile_from_linkage_name (struct objfile *objfile, |
2381 | const char *linkage_name, | |
2382 | domain_enum domain) | |
2383 | { | |
2384 | enum language lang = current_language->la_language; | |
e9ad22ee | 2385 | struct objfile *main_objfile; |
422d65e7 | 2386 | |
2f408ecb PA |
2387 | demangle_result_storage storage; |
2388 | const char *modified_name = demangle_for_lookup (linkage_name, lang, storage); | |
2389 | ||
422d65e7 DE |
2390 | if (objfile->separate_debug_objfile_backlink) |
2391 | main_objfile = objfile->separate_debug_objfile_backlink; | |
2392 | else | |
2393 | main_objfile = objfile; | |
2394 | ||
bde09ab7 | 2395 | for (::objfile *cur_objfile : main_objfile->separate_debug_objfiles ()) |
422d65e7 | 2396 | { |
d12307c1 PMR |
2397 | struct block_symbol result; |
2398 | ||
2399 | result = lookup_symbol_in_objfile_symtabs (cur_objfile, GLOBAL_BLOCK, | |
2400 | modified_name, domain); | |
2401 | if (result.symbol == NULL) | |
2402 | result = lookup_symbol_in_objfile_symtabs (cur_objfile, STATIC_BLOCK, | |
2403 | modified_name, domain); | |
2404 | if (result.symbol != NULL) | |
2f408ecb | 2405 | return result; |
422d65e7 DE |
2406 | } |
2407 | ||
6640a367 | 2408 | return {}; |
422d65e7 DE |
2409 | } |
2410 | ||
08c23b0d TT |
2411 | /* A helper function that throws an exception when a symbol was found |
2412 | in a psymtab but not in a symtab. */ | |
2413 | ||
2414 | static void ATTRIBUTE_NORETURN | |
ddbcedf5 | 2415 | error_in_psymtab_expansion (enum block_enum block_index, const char *name, |
43f3e411 | 2416 | struct compunit_symtab *cust) |
08c23b0d TT |
2417 | { |
2418 | error (_("\ | |
2419 | Internal: %s symbol `%s' found in %s psymtab but not in symtab.\n\ | |
2420 | %s may be an inlined function, or may be a template function\n \ | |
2421 | (if a template, try specifying an instantiation: %s<type>)."), | |
f88cb4b6 | 2422 | block_index == GLOBAL_BLOCK ? "global" : "static", |
43f3e411 | 2423 | name, |
0b17a4f7 | 2424 | symtab_to_filename_for_display (cust->primary_filetab ()), |
43f3e411 | 2425 | name, name); |
08c23b0d TT |
2426 | } |
2427 | ||
74016e12 DE |
2428 | /* A helper function for various lookup routines that interfaces with |
2429 | the "quick" symbol table functions. */ | |
8155455b | 2430 | |
d12307c1 | 2431 | static struct block_symbol |
ddbcedf5 CB |
2432 | lookup_symbol_via_quick_fns (struct objfile *objfile, |
2433 | enum block_enum block_index, const char *name, | |
2434 | const domain_enum domain) | |
8155455b | 2435 | { |
43f3e411 | 2436 | struct compunit_symtab *cust; |
346d1dfe | 2437 | const struct blockvector *bv; |
8155455b | 2438 | const struct block *block; |
d12307c1 | 2439 | struct block_symbol result; |
8155455b | 2440 | |
cc485e62 DE |
2441 | if (symbol_lookup_debug > 1) |
2442 | { | |
6cb06a8c TT |
2443 | gdb_printf (gdb_stdlog, |
2444 | "lookup_symbol_via_quick_fns (%s, %s, %s, %s)\n", | |
2445 | objfile_debug_name (objfile), | |
2446 | block_index == GLOBAL_BLOCK | |
2447 | ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
2448 | name, domain_name (domain)); | |
cc485e62 DE |
2449 | } |
2450 | ||
4d080b46 | 2451 | cust = objfile->lookup_symbol (block_index, name, domain); |
43f3e411 | 2452 | if (cust == NULL) |
cc485e62 DE |
2453 | { |
2454 | if (symbol_lookup_debug > 1) | |
2455 | { | |
6cb06a8c TT |
2456 | gdb_printf (gdb_stdlog, |
2457 | "lookup_symbol_via_quick_fns (...) = NULL\n"); | |
cc485e62 | 2458 | } |
6640a367 | 2459 | return {}; |
cc485e62 | 2460 | } |
8155455b | 2461 | |
af39c5c8 | 2462 | bv = cust->blockvector (); |
63d609de | 2463 | block = bv->block (block_index); |
de63c46b PA |
2464 | result.symbol = block_lookup_symbol (block, name, |
2465 | symbol_name_match_type::FULL, domain); | |
d12307c1 | 2466 | if (result.symbol == NULL) |
43f3e411 | 2467 | error_in_psymtab_expansion (block_index, name, cust); |
cc485e62 DE |
2468 | |
2469 | if (symbol_lookup_debug > 1) | |
2470 | { | |
6cb06a8c TT |
2471 | gdb_printf (gdb_stdlog, |
2472 | "lookup_symbol_via_quick_fns (...) = %s (block %s)\n", | |
2473 | host_address_to_string (result.symbol), | |
2474 | host_address_to_string (block)); | |
cc485e62 DE |
2475 | } |
2476 | ||
d12307c1 PMR |
2477 | result.symbol = fixup_symbol_section (result.symbol, objfile); |
2478 | result.block = block; | |
2479 | return result; | |
8155455b DC |
2480 | } |
2481 | ||
a78a19b1 | 2482 | /* See language.h. */ |
5f9a71c3 | 2483 | |
d12307c1 | 2484 | struct block_symbol |
a78a19b1 AB |
2485 | language_defn::lookup_symbol_nonlocal (const char *name, |
2486 | const struct block *block, | |
2487 | const domain_enum domain) const | |
5f9a71c3 | 2488 | { |
d12307c1 | 2489 | struct block_symbol result; |
5f9a71c3 | 2490 | |
d9060ba6 DE |
2491 | /* NOTE: dje/2014-10-26: The lookup in all objfiles search could skip |
2492 | the current objfile. Searching the current objfile first is useful | |
2493 | for both matching user expectations as well as performance. */ | |
2494 | ||
d12307c1 PMR |
2495 | result = lookup_symbol_in_static_block (name, block, domain); |
2496 | if (result.symbol != NULL) | |
2497 | return result; | |
5f9a71c3 | 2498 | |
1994afbf DE |
2499 | /* If we didn't find a definition for a builtin type in the static block, |
2500 | search for it now. This is actually the right thing to do and can be | |
2501 | a massive performance win. E.g., when debugging a program with lots of | |
2502 | shared libraries we could search all of them only to find out the | |
2503 | builtin type isn't defined in any of them. This is common for types | |
2504 | like "void". */ | |
2505 | if (domain == VAR_DOMAIN) | |
2506 | { | |
2507 | struct gdbarch *gdbarch; | |
2508 | ||
2509 | if (block == NULL) | |
2510 | gdbarch = target_gdbarch (); | |
2511 | else | |
2512 | gdbarch = block_gdbarch (block); | |
a78a19b1 | 2513 | result.symbol = language_lookup_primitive_type_as_symbol (this, |
d12307c1 PMR |
2514 | gdbarch, name); |
2515 | result.block = NULL; | |
2516 | if (result.symbol != NULL) | |
2517 | return result; | |
1994afbf DE |
2518 | } |
2519 | ||
08724ab7 | 2520 | return lookup_global_symbol (name, block, domain); |
5f9a71c3 DC |
2521 | } |
2522 | ||
cf901d3b | 2523 | /* See symtab.h. */ |
5f9a71c3 | 2524 | |
d12307c1 | 2525 | struct block_symbol |
24d864bb DE |
2526 | lookup_symbol_in_static_block (const char *name, |
2527 | const struct block *block, | |
2528 | const domain_enum domain) | |
5f9a71c3 DC |
2529 | { |
2530 | const struct block *static_block = block_static_block (block); | |
cc485e62 | 2531 | struct symbol *sym; |
5f9a71c3 | 2532 | |
cc485e62 | 2533 | if (static_block == NULL) |
6640a367 | 2534 | return {}; |
cc485e62 DE |
2535 | |
2536 | if (symbol_lookup_debug) | |
2537 | { | |
d6bc0792 TT |
2538 | struct objfile *objfile = (block == nullptr |
2539 | ? nullptr : block_objfile (block)); | |
cc485e62 | 2540 | |
6cb06a8c TT |
2541 | gdb_printf (gdb_stdlog, |
2542 | "lookup_symbol_in_static_block (%s, %s (objfile %s)," | |
2543 | " %s)\n", | |
2544 | name, | |
2545 | host_address_to_string (block), | |
2546 | objfile_debug_name (objfile), | |
2547 | domain_name (domain)); | |
cc485e62 DE |
2548 | } |
2549 | ||
de63c46b PA |
2550 | sym = lookup_symbol_in_block (name, |
2551 | symbol_name_match_type::FULL, | |
2552 | static_block, domain); | |
cc485e62 DE |
2553 | if (symbol_lookup_debug) |
2554 | { | |
6cb06a8c TT |
2555 | gdb_printf (gdb_stdlog, |
2556 | "lookup_symbol_in_static_block (...) = %s\n", | |
2557 | sym != NULL ? host_address_to_string (sym) : "NULL"); | |
cc485e62 | 2558 | } |
d12307c1 | 2559 | return (struct block_symbol) {sym, static_block}; |
5f9a71c3 DC |
2560 | } |
2561 | ||
af3768e9 DE |
2562 | /* Perform the standard symbol lookup of NAME in OBJFILE: |
2563 | 1) First search expanded symtabs, and if not found | |
2564 | 2) Search the "quick" symtabs (partial or .gdb_index). | |
2565 | BLOCK_INDEX is one of GLOBAL_BLOCK or STATIC_BLOCK. */ | |
2566 | ||
d12307c1 | 2567 | static struct block_symbol |
c32e6a04 | 2568 | lookup_symbol_in_objfile (struct objfile *objfile, enum block_enum block_index, |
af3768e9 DE |
2569 | const char *name, const domain_enum domain) |
2570 | { | |
d12307c1 | 2571 | struct block_symbol result; |
af3768e9 | 2572 | |
c32e6a04 CB |
2573 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2574 | ||
cc485e62 DE |
2575 | if (symbol_lookup_debug) |
2576 | { | |
6cb06a8c TT |
2577 | gdb_printf (gdb_stdlog, |
2578 | "lookup_symbol_in_objfile (%s, %s, %s, %s)\n", | |
2579 | objfile_debug_name (objfile), | |
2580 | block_index == GLOBAL_BLOCK | |
2581 | ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
2582 | name, domain_name (domain)); | |
cc485e62 DE |
2583 | } |
2584 | ||
af3768e9 DE |
2585 | result = lookup_symbol_in_objfile_symtabs (objfile, block_index, |
2586 | name, domain); | |
d12307c1 | 2587 | if (result.symbol != NULL) |
af3768e9 | 2588 | { |
cc485e62 DE |
2589 | if (symbol_lookup_debug) |
2590 | { | |
6cb06a8c TT |
2591 | gdb_printf (gdb_stdlog, |
2592 | "lookup_symbol_in_objfile (...) = %s" | |
2593 | " (in symtabs)\n", | |
2594 | host_address_to_string (result.symbol)); | |
cc485e62 DE |
2595 | } |
2596 | return result; | |
af3768e9 DE |
2597 | } |
2598 | ||
cc485e62 DE |
2599 | result = lookup_symbol_via_quick_fns (objfile, block_index, |
2600 | name, domain); | |
2601 | if (symbol_lookup_debug) | |
2602 | { | |
6cb06a8c TT |
2603 | gdb_printf (gdb_stdlog, |
2604 | "lookup_symbol_in_objfile (...) = %s%s\n", | |
2605 | result.symbol != NULL | |
2606 | ? host_address_to_string (result.symbol) | |
2607 | : "NULL", | |
2608 | result.symbol != NULL ? " (via quick fns)" : ""); | |
cc485e62 | 2609 | } |
af3768e9 DE |
2610 | return result; |
2611 | } | |
2612 | ||
d3214198 TV |
2613 | /* Find the language for partial symbol with NAME. */ |
2614 | ||
2615 | static enum language | |
2616 | find_quick_global_symbol_language (const char *name, const domain_enum domain) | |
2617 | { | |
d3214198 TV |
2618 | for (objfile *objfile : current_program_space->objfiles ()) |
2619 | { | |
2620 | bool symbol_found_p; | |
2621 | enum language lang | |
4d080b46 TT |
2622 | = objfile->lookup_global_symbol_language (name, domain, &symbol_found_p); |
2623 | if (symbol_found_p) | |
2624 | return lang; | |
d3214198 TV |
2625 | } |
2626 | ||
2627 | return language_unknown; | |
2628 | } | |
2629 | ||
9aa55206 CB |
2630 | /* This function contains the common code of lookup_{global,static}_symbol. |
2631 | OBJFILE is only used if BLOCK_INDEX is GLOBAL_SCOPE, in which case it is | |
2632 | the objfile to start the lookup in. */ | |
5f9a71c3 | 2633 | |
9aa55206 CB |
2634 | static struct block_symbol |
2635 | lookup_global_or_static_symbol (const char *name, | |
2636 | enum block_enum block_index, | |
2637 | struct objfile *objfile, | |
2638 | const domain_enum domain) | |
5f9a71c3 | 2639 | { |
f57d2163 | 2640 | struct symbol_cache *cache = get_symbol_cache (current_program_space); |
d12307c1 | 2641 | struct block_symbol result; |
f57d2163 DE |
2642 | struct block_symbol_cache *bsc; |
2643 | struct symbol_cache_slot *slot; | |
b2fb95e0 | 2644 | |
9aa55206 CB |
2645 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2646 | gdb_assert (objfile == nullptr || block_index == GLOBAL_BLOCK); | |
f57d2163 DE |
2647 | |
2648 | /* First see if we can find the symbol in the cache. | |
2649 | This works because we use the current objfile to qualify the lookup. */ | |
9aa55206 | 2650 | result = symbol_cache_lookup (cache, objfile, block_index, name, domain, |
d12307c1 PMR |
2651 | &bsc, &slot); |
2652 | if (result.symbol != NULL) | |
f57d2163 | 2653 | { |
d12307c1 | 2654 | if (SYMBOL_LOOKUP_FAILED_P (result)) |
6640a367 | 2655 | return {}; |
d12307c1 | 2656 | return result; |
f57d2163 DE |
2657 | } |
2658 | ||
626ca2c0 | 2659 | /* Do a global search (of global blocks, heh). */ |
d12307c1 | 2660 | if (result.symbol == NULL) |
6e9cd73e SM |
2661 | gdbarch_iterate_over_objfiles_in_search_order |
2662 | (objfile != NULL ? objfile->arch () : target_gdbarch (), | |
2663 | [&result, block_index, name, domain] (struct objfile *objfile_iter) | |
2664 | { | |
2665 | result = lookup_symbol_in_objfile (objfile_iter, block_index, | |
2666 | name, domain); | |
2667 | return result.symbol != nullptr; | |
2668 | }, | |
2669 | objfile); | |
6a3ca067 | 2670 | |
d12307c1 PMR |
2671 | if (result.symbol != NULL) |
2672 | symbol_cache_mark_found (bsc, slot, objfile, result.symbol, result.block); | |
f57d2163 DE |
2673 | else |
2674 | symbol_cache_mark_not_found (bsc, slot, objfile, name, domain); | |
2675 | ||
d12307c1 | 2676 | return result; |
5f9a71c3 DC |
2677 | } |
2678 | ||
9aa55206 CB |
2679 | /* See symtab.h. */ |
2680 | ||
2681 | struct block_symbol | |
2682 | lookup_static_symbol (const char *name, const domain_enum domain) | |
2683 | { | |
2684 | return lookup_global_or_static_symbol (name, STATIC_BLOCK, nullptr, domain); | |
2685 | } | |
2686 | ||
2687 | /* See symtab.h. */ | |
2688 | ||
2689 | struct block_symbol | |
2690 | lookup_global_symbol (const char *name, | |
2691 | const struct block *block, | |
2692 | const domain_enum domain) | |
2693 | { | |
d3d32391 AB |
2694 | /* If a block was passed in, we want to search the corresponding |
2695 | global block first. This yields "more expected" behavior, and is | |
2696 | needed to support 'FILENAME'::VARIABLE lookups. */ | |
2697 | const struct block *global_block = block_global_block (block); | |
70bc38f5 | 2698 | symbol *sym = NULL; |
d3d32391 AB |
2699 | if (global_block != nullptr) |
2700 | { | |
70bc38f5 TV |
2701 | sym = lookup_symbol_in_block (name, |
2702 | symbol_name_match_type::FULL, | |
2703 | global_block, domain); | |
2704 | if (sym != NULL && best_symbol (sym, domain)) | |
d3d32391 AB |
2705 | return { sym, global_block }; |
2706 | } | |
2707 | ||
d6bc0792 TT |
2708 | struct objfile *objfile = nullptr; |
2709 | if (block != nullptr) | |
2710 | { | |
2711 | objfile = block_objfile (block); | |
2712 | if (objfile->separate_debug_objfile_backlink != nullptr) | |
2713 | objfile = objfile->separate_debug_objfile_backlink; | |
2714 | } | |
2715 | ||
70bc38f5 TV |
2716 | block_symbol bs |
2717 | = lookup_global_or_static_symbol (name, GLOBAL_BLOCK, objfile, domain); | |
2718 | if (better_symbol (sym, bs.symbol, domain) == sym) | |
2719 | return { sym, global_block }; | |
2720 | else | |
2721 | return bs; | |
9aa55206 CB |
2722 | } |
2723 | ||
ececd218 | 2724 | bool |
4186eb54 KS |
2725 | symbol_matches_domain (enum language symbol_language, |
2726 | domain_enum symbol_domain, | |
2727 | domain_enum domain) | |
2728 | { | |
2729 | /* For C++ "struct foo { ... }" also defines a typedef for "foo". | |
4186eb54 KS |
2730 | Similarly, any Ada type declaration implicitly defines a typedef. */ |
2731 | if (symbol_language == language_cplus | |
2732 | || symbol_language == language_d | |
65547233 TT |
2733 | || symbol_language == language_ada |
2734 | || symbol_language == language_rust) | |
4186eb54 KS |
2735 | { |
2736 | if ((domain == VAR_DOMAIN || domain == STRUCT_DOMAIN) | |
2737 | && symbol_domain == STRUCT_DOMAIN) | |
ececd218 | 2738 | return true; |
4186eb54 KS |
2739 | } |
2740 | /* For all other languages, strict match is required. */ | |
2741 | return (symbol_domain == domain); | |
2742 | } | |
2743 | ||
cf901d3b | 2744 | /* See symtab.h. */ |
c906108c | 2745 | |
ccefe4c4 TT |
2746 | struct type * |
2747 | lookup_transparent_type (const char *name) | |
c906108c | 2748 | { |
54f4ca46 | 2749 | return current_language->lookup_transparent_type (name); |
ccefe4c4 | 2750 | } |
9af17804 | 2751 | |
ccefe4c4 TT |
2752 | /* A helper for basic_lookup_transparent_type that interfaces with the |
2753 | "quick" symbol table functions. */ | |
357e46e7 | 2754 | |
ccefe4c4 | 2755 | static struct type * |
ddbcedf5 CB |
2756 | basic_lookup_transparent_type_quick (struct objfile *objfile, |
2757 | enum block_enum block_index, | |
ccefe4c4 TT |
2758 | const char *name) |
2759 | { | |
43f3e411 | 2760 | struct compunit_symtab *cust; |
346d1dfe | 2761 | const struct blockvector *bv; |
582942f4 | 2762 | const struct block *block; |
ccefe4c4 | 2763 | struct symbol *sym; |
c906108c | 2764 | |
4d080b46 | 2765 | cust = objfile->lookup_symbol (block_index, name, STRUCT_DOMAIN); |
43f3e411 | 2766 | if (cust == NULL) |
ccefe4c4 | 2767 | return NULL; |
c906108c | 2768 | |
af39c5c8 | 2769 | bv = cust->blockvector (); |
63d609de | 2770 | block = bv->block (block_index); |
b2e2f908 DE |
2771 | sym = block_find_symbol (block, name, STRUCT_DOMAIN, |
2772 | block_find_non_opaque_type, NULL); | |
2773 | if (sym == NULL) | |
43f3e411 | 2774 | error_in_psymtab_expansion (block_index, name, cust); |
5f9c5a63 SM |
2775 | gdb_assert (!TYPE_IS_OPAQUE (sym->type ())); |
2776 | return sym->type (); | |
b2e2f908 | 2777 | } |
08c23b0d | 2778 | |
b2e2f908 DE |
2779 | /* Subroutine of basic_lookup_transparent_type to simplify it. |
2780 | Look up the non-opaque definition of NAME in BLOCK_INDEX of OBJFILE. | |
2781 | BLOCK_INDEX is either GLOBAL_BLOCK or STATIC_BLOCK. */ | |
2782 | ||
2783 | static struct type * | |
ddbcedf5 CB |
2784 | basic_lookup_transparent_type_1 (struct objfile *objfile, |
2785 | enum block_enum block_index, | |
b2e2f908 DE |
2786 | const char *name) |
2787 | { | |
b2e2f908 DE |
2788 | const struct blockvector *bv; |
2789 | const struct block *block; | |
2790 | const struct symbol *sym; | |
2791 | ||
b669c953 | 2792 | for (compunit_symtab *cust : objfile->compunits ()) |
b2e2f908 | 2793 | { |
af39c5c8 | 2794 | bv = cust->blockvector (); |
63d609de | 2795 | block = bv->block (block_index); |
b2e2f908 DE |
2796 | sym = block_find_symbol (block, name, STRUCT_DOMAIN, |
2797 | block_find_non_opaque_type, NULL); | |
2798 | if (sym != NULL) | |
2799 | { | |
5f9c5a63 SM |
2800 | gdb_assert (!TYPE_IS_OPAQUE (sym->type ())); |
2801 | return sym->type (); | |
b2e2f908 DE |
2802 | } |
2803 | } | |
c906108c | 2804 | |
ccefe4c4 | 2805 | return NULL; |
b368761e | 2806 | } |
c906108c | 2807 | |
b368761e DC |
2808 | /* The standard implementation of lookup_transparent_type. This code |
2809 | was modeled on lookup_symbol -- the parts not relevant to looking | |
2810 | up types were just left out. In particular it's assumed here that | |
cf901d3b | 2811 | types are available in STRUCT_DOMAIN and only in file-static or |
b368761e | 2812 | global blocks. */ |
c906108c SS |
2813 | |
2814 | struct type * | |
b368761e | 2815 | basic_lookup_transparent_type (const char *name) |
c906108c | 2816 | { |
ccefe4c4 | 2817 | struct type *t; |
c906108c SS |
2818 | |
2819 | /* Now search all the global symbols. Do the symtab's first, then | |
c378eb4e | 2820 | check the psymtab's. If a psymtab indicates the existence |
c906108c SS |
2821 | of the desired name as a global, then do psymtab-to-symtab |
2822 | conversion on the fly and return the found symbol. */ | |
c5aa993b | 2823 | |
2030c079 | 2824 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2825 | { |
2826 | t = basic_lookup_transparent_type_1 (objfile, GLOBAL_BLOCK, name); | |
2827 | if (t) | |
2828 | return t; | |
2829 | } | |
c906108c | 2830 | |
2030c079 | 2831 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2832 | { |
2833 | t = basic_lookup_transparent_type_quick (objfile, GLOBAL_BLOCK, name); | |
2834 | if (t) | |
2835 | return t; | |
2836 | } | |
c906108c SS |
2837 | |
2838 | /* Now search the static file-level symbols. | |
2839 | Not strictly correct, but more useful than an error. | |
2840 | Do the symtab's first, then | |
c378eb4e | 2841 | check the psymtab's. If a psymtab indicates the existence |
c906108c | 2842 | of the desired name as a file-level static, then do psymtab-to-symtab |
c378eb4e | 2843 | conversion on the fly and return the found symbol. */ |
c906108c | 2844 | |
2030c079 | 2845 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2846 | { |
2847 | t = basic_lookup_transparent_type_1 (objfile, STATIC_BLOCK, name); | |
2848 | if (t) | |
2849 | return t; | |
2850 | } | |
c906108c | 2851 | |
2030c079 | 2852 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2853 | { |
2854 | t = basic_lookup_transparent_type_quick (objfile, STATIC_BLOCK, name); | |
2855 | if (t) | |
2856 | return t; | |
2857 | } | |
ccefe4c4 | 2858 | |
c906108c SS |
2859 | return (struct type *) 0; |
2860 | } | |
2861 | ||
6969f124 | 2862 | /* See symtab.h. */ |
f8eba3c6 | 2863 | |
6969f124 | 2864 | bool |
b5ec771e PA |
2865 | iterate_over_symbols (const struct block *block, |
2866 | const lookup_name_info &name, | |
f8eba3c6 | 2867 | const domain_enum domain, |
14bc53a8 | 2868 | gdb::function_view<symbol_found_callback_ftype> callback) |
f8eba3c6 | 2869 | { |
4eeaa230 DE |
2870 | struct block_iterator iter; |
2871 | struct symbol *sym; | |
f8eba3c6 | 2872 | |
358d6ab3 | 2873 | ALL_BLOCK_SYMBOLS_WITH_NAME (block, name, iter, sym) |
4eeaa230 | 2874 | { |
6c9c307c | 2875 | if (symbol_matches_domain (sym->language (), sym->domain (), domain)) |
f8eba3c6 | 2876 | { |
7e41c8db KS |
2877 | struct block_symbol block_sym = {sym, block}; |
2878 | ||
2879 | if (!callback (&block_sym)) | |
6969f124 | 2880 | return false; |
f8eba3c6 | 2881 | } |
f8eba3c6 | 2882 | } |
6969f124 | 2883 | return true; |
f8eba3c6 TT |
2884 | } |
2885 | ||
6a3dbf1b TT |
2886 | /* See symtab.h. */ |
2887 | ||
2888 | bool | |
2889 | iterate_over_symbols_terminated | |
2890 | (const struct block *block, | |
2891 | const lookup_name_info &name, | |
2892 | const domain_enum domain, | |
2893 | gdb::function_view<symbol_found_callback_ftype> callback) | |
2894 | { | |
2895 | if (!iterate_over_symbols (block, name, domain, callback)) | |
2896 | return false; | |
2897 | struct block_symbol block_sym = {nullptr, block}; | |
2898 | return callback (&block_sym); | |
2899 | } | |
2900 | ||
43f3e411 DE |
2901 | /* Find the compunit symtab associated with PC and SECTION. |
2902 | This will read in debug info as necessary. */ | |
c906108c | 2903 | |
43f3e411 DE |
2904 | struct compunit_symtab * |
2905 | find_pc_sect_compunit_symtab (CORE_ADDR pc, struct obj_section *section) | |
c906108c | 2906 | { |
43f3e411 | 2907 | struct compunit_symtab *best_cust = NULL; |
61eb46a4 | 2908 | CORE_ADDR best_cust_range = 0; |
77e371c0 | 2909 | struct bound_minimal_symbol msymbol; |
8a48e967 DJ |
2910 | |
2911 | /* If we know that this is not a text address, return failure. This is | |
2912 | necessary because we loop based on the block's high and low code | |
2913 | addresses, which do not include the data ranges, and because | |
2914 | we call find_pc_sect_psymtab which has a similar restriction based | |
2915 | on the partial_symtab's texthigh and textlow. */ | |
77e371c0 | 2916 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); |
1ed9f74e | 2917 | if (msymbol.minsym && msymbol.minsym->data_p ()) |
8a48e967 | 2918 | return NULL; |
c906108c SS |
2919 | |
2920 | /* Search all symtabs for the one whose file contains our address, and which | |
2921 | is the smallest of all the ones containing the address. This is designed | |
2922 | to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000 | |
2923 | and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from | |
2924 | 0x1000-0x4000, but for address 0x2345 we want to return symtab b. | |
2925 | ||
2926 | This happens for native ecoff format, where code from included files | |
c378eb4e | 2927 | gets its own symtab. The symtab for the included file should have |
c906108c SS |
2928 | been read in already via the dependency mechanism. |
2929 | It might be swifter to create several symtabs with the same name | |
2930 | like xcoff does (I'm not sure). | |
2931 | ||
2932 | It also happens for objfiles that have their functions reordered. | |
2933 | For these, the symtab we are looking for is not necessarily read in. */ | |
2934 | ||
2030c079 | 2935 | for (objfile *obj_file : current_program_space->objfiles ()) |
d8aeb77f | 2936 | { |
b669c953 | 2937 | for (compunit_symtab *cust : obj_file->compunits ()) |
d8aeb77f | 2938 | { |
af39c5c8 | 2939 | const struct blockvector *bv = cust->blockvector (); |
63d609de | 2940 | const struct block *global_block = bv->global_block (); |
4b8791e1 SM |
2941 | CORE_ADDR start = global_block->start (); |
2942 | CORE_ADDR end = global_block->end (); | |
61eb46a4 TV |
2943 | bool in_range_p = start <= pc && pc < end; |
2944 | if (!in_range_p) | |
2945 | continue; | |
43f3e411 | 2946 | |
414705d1 | 2947 | if (bv->map () != nullptr) |
1b00ef06 | 2948 | { |
769520b7 | 2949 | if (bv->map ()->find (pc) == nullptr) |
1b00ef06 TV |
2950 | continue; |
2951 | ||
2952 | return cust; | |
2953 | } | |
2954 | ||
61eb46a4 TV |
2955 | CORE_ADDR range = end - start; |
2956 | if (best_cust != nullptr | |
2957 | && range >= best_cust_range) | |
2958 | /* Cust doesn't have a smaller range than best_cust, skip it. */ | |
2959 | continue; | |
2960 | ||
2961 | /* For an objfile that has its functions reordered, | |
2962 | find_pc_psymtab will find the proper partial symbol table | |
2963 | and we simply return its corresponding symtab. */ | |
2964 | /* In order to better support objfiles that contain both | |
2965 | stabs and coff debugging info, we continue on if a psymtab | |
2966 | can't be found. */ | |
4d080b46 | 2967 | if ((obj_file->flags & OBJF_REORDERED) != 0) |
61eb46a4 TV |
2968 | { |
2969 | struct compunit_symtab *result; | |
2970 | ||
2971 | result | |
4d080b46 TT |
2972 | = obj_file->find_pc_sect_compunit_symtab (msymbol, |
2973 | pc, | |
2974 | section, | |
2975 | 0); | |
61eb46a4 TV |
2976 | if (result != NULL) |
2977 | return result; | |
2978 | } | |
c906108c | 2979 | |
61eb46a4 | 2980 | if (section != 0) |
d8aeb77f | 2981 | { |
61eb46a4 TV |
2982 | struct symbol *sym = NULL; |
2983 | struct block_iterator iter; | |
2984 | ||
bd24c5d6 TV |
2985 | for (int b_index = GLOBAL_BLOCK; |
2986 | b_index <= STATIC_BLOCK && sym == NULL; | |
2987 | ++b_index) | |
d8aeb77f | 2988 | { |
63d609de | 2989 | const struct block *b = bv->block (b_index); |
bd24c5d6 TV |
2990 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
2991 | { | |
2992 | fixup_symbol_section (sym, obj_file); | |
ebbc3a7d | 2993 | if (matching_obj_sections (sym->obj_section (obj_file), |
bd24c5d6 TV |
2994 | section)) |
2995 | break; | |
2996 | } | |
d8aeb77f | 2997 | } |
61eb46a4 TV |
2998 | if (sym == NULL) |
2999 | continue; /* No symbol in this symtab matches | |
d8aeb77f | 3000 | section. */ |
d8aeb77f | 3001 | } |
61eb46a4 TV |
3002 | |
3003 | /* Cust is best found sofar, save it. */ | |
3004 | best_cust = cust; | |
3005 | best_cust_range = range; | |
d8aeb77f TT |
3006 | } |
3007 | } | |
c906108c | 3008 | |
43f3e411 DE |
3009 | if (best_cust != NULL) |
3010 | return best_cust; | |
c906108c | 3011 | |
072cabfe DE |
3012 | /* Not found in symtabs, search the "quick" symtabs (e.g. psymtabs). */ |
3013 | ||
2030c079 | 3014 | for (objfile *objf : current_program_space->objfiles ()) |
aed57c53 | 3015 | { |
4d080b46 TT |
3016 | struct compunit_symtab *result |
3017 | = objf->find_pc_sect_compunit_symtab (msymbol, pc, section, 1); | |
aed57c53 TT |
3018 | if (result != NULL) |
3019 | return result; | |
3020 | } | |
ccefe4c4 TT |
3021 | |
3022 | return NULL; | |
c906108c SS |
3023 | } |
3024 | ||
43f3e411 DE |
3025 | /* Find the compunit symtab associated with PC. |
3026 | This will read in debug info as necessary. | |
3027 | Backward compatibility, no section. */ | |
c906108c | 3028 | |
43f3e411 DE |
3029 | struct compunit_symtab * |
3030 | find_pc_compunit_symtab (CORE_ADDR pc) | |
c906108c | 3031 | { |
43f3e411 | 3032 | return find_pc_sect_compunit_symtab (pc, find_pc_mapped_section (pc)); |
c906108c | 3033 | } |
71a3c369 TT |
3034 | |
3035 | /* See symtab.h. */ | |
3036 | ||
3037 | struct symbol * | |
3038 | find_symbol_at_address (CORE_ADDR address) | |
3039 | { | |
1f2624a3 TT |
3040 | /* A helper function to search a given symtab for a symbol matching |
3041 | ADDR. */ | |
3042 | auto search_symtab = [] (compunit_symtab *symtab, CORE_ADDR addr) -> symbol * | |
aed57c53 | 3043 | { |
af39c5c8 | 3044 | const struct blockvector *bv = symtab->blockvector (); |
71a3c369 | 3045 | |
1f2624a3 | 3046 | for (int i = GLOBAL_BLOCK; i <= STATIC_BLOCK; ++i) |
aed57c53 | 3047 | { |
63d609de | 3048 | const struct block *b = bv->block (i); |
1f2624a3 TT |
3049 | struct block_iterator iter; |
3050 | struct symbol *sym; | |
71a3c369 | 3051 | |
1f2624a3 | 3052 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
71a3c369 | 3053 | { |
66d7f48f | 3054 | if (sym->aclass () == LOC_STATIC |
4aeddc50 | 3055 | && sym->value_address () == addr) |
1f2624a3 TT |
3056 | return sym; |
3057 | } | |
3058 | } | |
3059 | return nullptr; | |
3060 | }; | |
aed57c53 | 3061 | |
1f2624a3 TT |
3062 | for (objfile *objfile : current_program_space->objfiles ()) |
3063 | { | |
4d080b46 TT |
3064 | /* If this objfile was read with -readnow, then we need to |
3065 | search the symtabs directly. */ | |
3066 | if ((objfile->flags & OBJF_READNOW) != 0) | |
1f2624a3 TT |
3067 | { |
3068 | for (compunit_symtab *symtab : objfile->compunits ()) | |
3069 | { | |
3070 | struct symbol *sym = search_symtab (symtab, address); | |
3071 | if (sym != nullptr) | |
3072 | return sym; | |
3073 | } | |
3074 | } | |
3075 | else | |
3076 | { | |
3077 | struct compunit_symtab *symtab | |
4d080b46 | 3078 | = objfile->find_compunit_symtab_by_address (address); |
1f2624a3 TT |
3079 | if (symtab != NULL) |
3080 | { | |
3081 | struct symbol *sym = search_symtab (symtab, address); | |
3082 | if (sym != nullptr) | |
3083 | return sym; | |
71a3c369 | 3084 | } |
aed57c53 TT |
3085 | } |
3086 | } | |
71a3c369 TT |
3087 | |
3088 | return NULL; | |
3089 | } | |
3090 | ||
c906108c | 3091 | \f |
c5aa993b | 3092 | |
7e73cedf | 3093 | /* Find the source file and line number for a given PC value and SECTION. |
c906108c SS |
3094 | Return a structure containing a symtab pointer, a line number, |
3095 | and a pc range for the entire source line. | |
3096 | The value's .pc field is NOT the specified pc. | |
3097 | NOTCURRENT nonzero means, if specified pc is on a line boundary, | |
3098 | use the line that ends there. Otherwise, in that case, the line | |
3099 | that begins there is used. */ | |
3100 | ||
3101 | /* The big complication here is that a line may start in one file, and end just | |
3102 | before the start of another file. This usually occurs when you #include | |
3103 | code in the middle of a subroutine. To properly find the end of a line's PC | |
3104 | range, we must search all symtabs associated with this compilation unit, and | |
3105 | find the one whose first PC is closer than that of the next line in this | |
3106 | symtab. */ | |
3107 | ||
c906108c | 3108 | struct symtab_and_line |
714835d5 | 3109 | find_pc_sect_line (CORE_ADDR pc, struct obj_section *section, int notcurrent) |
c906108c | 3110 | { |
43f3e411 | 3111 | struct compunit_symtab *cust; |
52f0bd74 AC |
3112 | struct linetable *l; |
3113 | int len; | |
52f0bd74 | 3114 | struct linetable_entry *item; |
346d1dfe | 3115 | const struct blockvector *bv; |
7cbd4a93 | 3116 | struct bound_minimal_symbol msymbol; |
c906108c SS |
3117 | |
3118 | /* Info on best line seen so far, and where it starts, and its file. */ | |
3119 | ||
3120 | struct linetable_entry *best = NULL; | |
3121 | CORE_ADDR best_end = 0; | |
3122 | struct symtab *best_symtab = 0; | |
3123 | ||
3124 | /* Store here the first line number | |
3125 | of a file which contains the line at the smallest pc after PC. | |
3126 | If we don't find a line whose range contains PC, | |
3127 | we will use a line one less than this, | |
3128 | with a range from the start of that file to the first line's pc. */ | |
3129 | struct linetable_entry *alt = NULL; | |
c906108c SS |
3130 | |
3131 | /* Info on best line seen in this file. */ | |
3132 | ||
3133 | struct linetable_entry *prev; | |
3134 | ||
3135 | /* If this pc is not from the current frame, | |
3136 | it is the address of the end of a call instruction. | |
3137 | Quite likely that is the start of the following statement. | |
3138 | But what we want is the statement containing the instruction. | |
3139 | Fudge the pc to make sure we get that. */ | |
3140 | ||
b77b1eb7 JB |
3141 | /* It's tempting to assume that, if we can't find debugging info for |
3142 | any function enclosing PC, that we shouldn't search for line | |
3143 | number info, either. However, GAS can emit line number info for | |
3144 | assembly files --- very helpful when debugging hand-written | |
3145 | assembly code. In such a case, we'd have no debug info for the | |
3146 | function, but we would have line info. */ | |
648f4f79 | 3147 | |
c906108c SS |
3148 | if (notcurrent) |
3149 | pc -= 1; | |
3150 | ||
c5aa993b | 3151 | /* elz: added this because this function returned the wrong |
c906108c | 3152 | information if the pc belongs to a stub (import/export) |
c378eb4e | 3153 | to call a shlib function. This stub would be anywhere between |
9af17804 | 3154 | two functions in the target, and the line info was erroneously |
c378eb4e MS |
3155 | taken to be the one of the line before the pc. */ |
3156 | ||
c906108c | 3157 | /* RT: Further explanation: |
c5aa993b | 3158 | |
c906108c SS |
3159 | * We have stubs (trampolines) inserted between procedures. |
3160 | * | |
3161 | * Example: "shr1" exists in a shared library, and a "shr1" stub also | |
3162 | * exists in the main image. | |
3163 | * | |
3164 | * In the minimal symbol table, we have a bunch of symbols | |
c378eb4e | 3165 | * sorted by start address. The stubs are marked as "trampoline", |
c906108c SS |
3166 | * the others appear as text. E.g.: |
3167 | * | |
9af17804 | 3168 | * Minimal symbol table for main image |
c906108c SS |
3169 | * main: code for main (text symbol) |
3170 | * shr1: stub (trampoline symbol) | |
3171 | * foo: code for foo (text symbol) | |
3172 | * ... | |
3173 | * Minimal symbol table for "shr1" image: | |
3174 | * ... | |
3175 | * shr1: code for shr1 (text symbol) | |
3176 | * ... | |
3177 | * | |
3178 | * So the code below is trying to detect if we are in the stub | |
3179 | * ("shr1" stub), and if so, find the real code ("shr1" trampoline), | |
3180 | * and if found, do the symbolization from the real-code address | |
3181 | * rather than the stub address. | |
3182 | * | |
3183 | * Assumptions being made about the minimal symbol table: | |
3184 | * 1. lookup_minimal_symbol_by_pc() will return a trampoline only | |
c378eb4e | 3185 | * if we're really in the trampoline.s If we're beyond it (say |
9af17804 | 3186 | * we're in "foo" in the above example), it'll have a closer |
c906108c SS |
3187 | * symbol (the "foo" text symbol for example) and will not |
3188 | * return the trampoline. | |
3189 | * 2. lookup_minimal_symbol_text() will find a real text symbol | |
3190 | * corresponding to the trampoline, and whose address will | |
c378eb4e | 3191 | * be different than the trampoline address. I put in a sanity |
c906108c SS |
3192 | * check for the address being the same, to avoid an |
3193 | * infinite recursion. | |
3194 | */ | |
c5aa993b | 3195 | msymbol = lookup_minimal_symbol_by_pc (pc); |
7cbd4a93 | 3196 | if (msymbol.minsym != NULL) |
60f62e2b | 3197 | if (msymbol.minsym->type () == mst_solib_trampoline) |
c5aa993b | 3198 | { |
77e371c0 | 3199 | struct bound_minimal_symbol mfunsym |
c9d95fa3 | 3200 | = lookup_minimal_symbol_text (msymbol.minsym->linkage_name (), |
77e371c0 TT |
3201 | NULL); |
3202 | ||
3203 | if (mfunsym.minsym == NULL) | |
c5aa993b JM |
3204 | /* I eliminated this warning since it is coming out |
3205 | * in the following situation: | |
3206 | * gdb shmain // test program with shared libraries | |
3207 | * (gdb) break shr1 // function in shared lib | |
3208 | * Warning: In stub for ... | |
9af17804 | 3209 | * In the above situation, the shared lib is not loaded yet, |
c5aa993b JM |
3210 | * so of course we can't find the real func/line info, |
3211 | * but the "break" still works, and the warning is annoying. | |
c378eb4e | 3212 | * So I commented out the warning. RT */ |
3e43a32a | 3213 | /* warning ("In stub for %s; unable to find real function/line info", |
987012b8 | 3214 | msymbol->linkage_name ()); */ |
c378eb4e | 3215 | ; |
c5aa993b | 3216 | /* fall through */ |
4aeddc50 SM |
3217 | else if (mfunsym.value_address () |
3218 | == msymbol.value_address ()) | |
c5aa993b | 3219 | /* Avoid infinite recursion */ |
c378eb4e | 3220 | /* See above comment about why warning is commented out. */ |
3e43a32a | 3221 | /* warning ("In stub for %s; unable to find real function/line info", |
987012b8 | 3222 | msymbol->linkage_name ()); */ |
c378eb4e | 3223 | ; |
c5aa993b JM |
3224 | /* fall through */ |
3225 | else | |
dd69bf7a KB |
3226 | { |
3227 | /* Detect an obvious case of infinite recursion. If this | |
3228 | should occur, we'd like to know about it, so error out, | |
3229 | fatally. */ | |
4aeddc50 | 3230 | if (mfunsym.value_address () == pc) |
dd69bf7a | 3231 | internal_error (__FILE__, __LINE__, |
dda83cd7 | 3232 | _("Infinite recursion detected in find_pc_sect_line;" |
dd69bf7a KB |
3233 | "please file a bug report")); |
3234 | ||
4aeddc50 | 3235 | return find_pc_line (mfunsym.value_address (), 0); |
dd69bf7a | 3236 | } |
c5aa993b | 3237 | } |
c906108c | 3238 | |
51abb421 PA |
3239 | symtab_and_line val; |
3240 | val.pspace = current_program_space; | |
c906108c | 3241 | |
43f3e411 DE |
3242 | cust = find_pc_sect_compunit_symtab (pc, section); |
3243 | if (cust == NULL) | |
c906108c | 3244 | { |
c378eb4e | 3245 | /* If no symbol information, return previous pc. */ |
c906108c SS |
3246 | if (notcurrent) |
3247 | pc++; | |
3248 | val.pc = pc; | |
3249 | return val; | |
3250 | } | |
3251 | ||
af39c5c8 | 3252 | bv = cust->blockvector (); |
c906108c SS |
3253 | |
3254 | /* Look at all the symtabs that share this blockvector. | |
3255 | They all have the same apriori range, that we found was right; | |
3256 | but they have different line tables. */ | |
3257 | ||
102cc235 | 3258 | for (symtab *iter_s : cust->filetabs ()) |
c906108c SS |
3259 | { |
3260 | /* Find the best line in this symtab. */ | |
5b607461 | 3261 | l = iter_s->linetable (); |
c906108c | 3262 | if (!l) |
c5aa993b | 3263 | continue; |
c906108c SS |
3264 | len = l->nitems; |
3265 | if (len <= 0) | |
3266 | { | |
3267 | /* I think len can be zero if the symtab lacks line numbers | |
3268 | (e.g. gcc -g1). (Either that or the LINETABLE is NULL; | |
3269 | I'm not sure which, and maybe it depends on the symbol | |
3270 | reader). */ | |
3271 | continue; | |
3272 | } | |
3273 | ||
3274 | prev = NULL; | |
c378eb4e | 3275 | item = l->item; /* Get first line info. */ |
c906108c SS |
3276 | |
3277 | /* Is this file's first line closer than the first lines of other files? | |
dda83cd7 | 3278 | If so, record this file, and its first line, as best alternate. */ |
c906108c | 3279 | if (item->pc > pc && (!alt || item->pc < alt->pc)) |
c656bca5 | 3280 | alt = item; |
c906108c | 3281 | |
b926417a | 3282 | auto pc_compare = [](const CORE_ADDR & comp_pc, |
7cbe16e9 SR |
3283 | const struct linetable_entry & lhs)->bool |
3284 | { | |
b926417a | 3285 | return comp_pc < lhs.pc; |
7cbe16e9 | 3286 | }; |
c906108c | 3287 | |
7cbe16e9 SR |
3288 | struct linetable_entry *first = item; |
3289 | struct linetable_entry *last = item + len; | |
3290 | item = std::upper_bound (first, last, pc, pc_compare); | |
3291 | if (item != first) | |
d8cc8af6 | 3292 | prev = item - 1; /* Found a matching item. */ |
c906108c SS |
3293 | |
3294 | /* At this point, prev points at the line whose start addr is <= pc, and | |
dda83cd7 SM |
3295 | item points at the next line. If we ran off the end of the linetable |
3296 | (pc >= start of the last line), then prev == item. If pc < start of | |
3297 | the first line, prev will not be set. */ | |
c906108c SS |
3298 | |
3299 | /* Is this file's best line closer than the best in the other files? | |
dda83cd7 SM |
3300 | If so, record this file, and its best line, as best so far. Don't |
3301 | save prev if it represents the end of a function (i.e. line number | |
3302 | 0) instead of a real line. */ | |
c906108c | 3303 | |
083ae935 | 3304 | if (prev && prev->line && (!best || prev->pc > best->pc)) |
c906108c SS |
3305 | { |
3306 | best = prev; | |
43f3e411 | 3307 | best_symtab = iter_s; |
25d53da1 | 3308 | |
8c95582d AB |
3309 | /* If during the binary search we land on a non-statement entry, |
3310 | scan backward through entries at the same address to see if | |
3311 | there is an entry marked as is-statement. In theory this | |
3312 | duplication should have been removed from the line table | |
3313 | during construction, this is just a double check. If the line | |
3314 | table has had the duplication removed then this should be | |
3315 | pretty cheap. */ | |
3316 | if (!best->is_stmt) | |
3317 | { | |
3318 | struct linetable_entry *tmp = best; | |
3319 | while (tmp > first && (tmp - 1)->pc == tmp->pc | |
3320 | && (tmp - 1)->line != 0 && !tmp->is_stmt) | |
3321 | --tmp; | |
3322 | if (tmp->is_stmt) | |
3323 | best = tmp; | |
3324 | } | |
3325 | ||
25d53da1 KB |
3326 | /* Discard BEST_END if it's before the PC of the current BEST. */ |
3327 | if (best_end <= best->pc) | |
3328 | best_end = 0; | |
c906108c | 3329 | } |
25d53da1 KB |
3330 | |
3331 | /* If another line (denoted by ITEM) is in the linetable and its | |
7cbe16e9 | 3332 | PC is after BEST's PC, but before the current BEST_END, then |
25d53da1 | 3333 | use ITEM's PC as the new best_end. */ |
4ee89e90 | 3334 | if (best && item < last && item->pc > best->pc |
7cbe16e9 | 3335 | && (best_end == 0 || best_end > item->pc)) |
25d53da1 | 3336 | best_end = item->pc; |
c906108c SS |
3337 | } |
3338 | ||
3339 | if (!best_symtab) | |
3340 | { | |
e86e87f7 DJ |
3341 | /* If we didn't find any line number info, just return zeros. |
3342 | We used to return alt->line - 1 here, but that could be | |
3343 | anywhere; if we don't have line number info for this PC, | |
3344 | don't make some up. */ | |
3345 | val.pc = pc; | |
c906108c | 3346 | } |
e8717518 FF |
3347 | else if (best->line == 0) |
3348 | { | |
3349 | /* If our best fit is in a range of PC's for which no line | |
3350 | number info is available (line number is zero) then we didn't | |
c378eb4e | 3351 | find any valid line information. */ |
e8717518 FF |
3352 | val.pc = pc; |
3353 | } | |
c906108c SS |
3354 | else |
3355 | { | |
8c95582d | 3356 | val.is_stmt = best->is_stmt; |
c906108c SS |
3357 | val.symtab = best_symtab; |
3358 | val.line = best->line; | |
3359 | val.pc = best->pc; | |
3360 | if (best_end && (!alt || best_end < alt->pc)) | |
3361 | val.end = best_end; | |
3362 | else if (alt) | |
3363 | val.end = alt->pc; | |
3364 | else | |
63d609de | 3365 | val.end = bv->global_block ()->end (); |
c906108c SS |
3366 | } |
3367 | val.section = section; | |
3368 | return val; | |
3369 | } | |
3370 | ||
c378eb4e | 3371 | /* Backward compatibility (no section). */ |
c906108c SS |
3372 | |
3373 | struct symtab_and_line | |
fba45db2 | 3374 | find_pc_line (CORE_ADDR pc, int notcurrent) |
c906108c | 3375 | { |
714835d5 | 3376 | struct obj_section *section; |
c906108c SS |
3377 | |
3378 | section = find_pc_overlay (pc); | |
31a8f60f AB |
3379 | if (!pc_in_unmapped_range (pc, section)) |
3380 | return find_pc_sect_line (pc, section, notcurrent); | |
3381 | ||
3382 | /* If the original PC was an unmapped address then we translate this to a | |
3383 | mapped address in order to lookup the sal. However, as the user | |
3384 | passed us an unmapped address it makes more sense to return a result | |
3385 | that has the pc and end fields translated to unmapped addresses. */ | |
3386 | pc = overlay_mapped_address (pc, section); | |
3387 | symtab_and_line sal = find_pc_sect_line (pc, section, notcurrent); | |
3388 | sal.pc = overlay_unmapped_address (sal.pc, section); | |
3389 | sal.end = overlay_unmapped_address (sal.end, section); | |
3390 | return sal; | |
c906108c | 3391 | } |
34248c3a DE |
3392 | |
3393 | /* See symtab.h. */ | |
3394 | ||
3395 | struct symtab * | |
3396 | find_pc_line_symtab (CORE_ADDR pc) | |
3397 | { | |
3398 | struct symtab_and_line sal; | |
3399 | ||
3400 | /* This always passes zero for NOTCURRENT to find_pc_line. | |
3401 | There are currently no callers that ever pass non-zero. */ | |
3402 | sal = find_pc_line (pc, 0); | |
3403 | return sal.symtab; | |
3404 | } | |
c906108c | 3405 | \f |
c906108c SS |
3406 | /* Find line number LINE in any symtab whose name is the same as |
3407 | SYMTAB. | |
3408 | ||
3409 | If found, return the symtab that contains the linetable in which it was | |
3410 | found, set *INDEX to the index in the linetable of the best entry | |
ececd218 | 3411 | found, and set *EXACT_MATCH to true if the value returned is an |
c906108c SS |
3412 | exact match. |
3413 | ||
3414 | If not found, return NULL. */ | |
3415 | ||
50641945 | 3416 | struct symtab * |
5accd1a0 | 3417 | find_line_symtab (struct symtab *sym_tab, int line, |
ececd218 | 3418 | int *index, bool *exact_match) |
c906108c | 3419 | { |
6f43c46f | 3420 | int exact = 0; /* Initialized here to avoid a compiler warning. */ |
c906108c SS |
3421 | |
3422 | /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE | |
3423 | so far seen. */ | |
3424 | ||
3425 | int best_index; | |
3426 | struct linetable *best_linetable; | |
3427 | struct symtab *best_symtab; | |
3428 | ||
3429 | /* First try looking it up in the given symtab. */ | |
5b607461 | 3430 | best_linetable = sym_tab->linetable (); |
5accd1a0 | 3431 | best_symtab = sym_tab; |
f8eba3c6 | 3432 | best_index = find_line_common (best_linetable, line, &exact, 0); |
c906108c SS |
3433 | if (best_index < 0 || !exact) |
3434 | { | |
3435 | /* Didn't find an exact match. So we better keep looking for | |
dda83cd7 SM |
3436 | another symtab with the same name. In the case of xcoff, |
3437 | multiple csects for one source file (produced by IBM's FORTRAN | |
3438 | compiler) produce multiple symtabs (this is unavoidable | |
3439 | assuming csects can be at arbitrary places in memory and that | |
3440 | the GLOBAL_BLOCK of a symtab has a begin and end address). */ | |
c906108c SS |
3441 | |
3442 | /* BEST is the smallest linenumber > LINE so far seen, | |
dda83cd7 SM |
3443 | or 0 if none has been seen so far. |
3444 | BEST_INDEX and BEST_LINETABLE identify the item for it. */ | |
c906108c SS |
3445 | int best; |
3446 | ||
c906108c SS |
3447 | if (best_index >= 0) |
3448 | best = best_linetable->item[best_index].line; | |
3449 | else | |
3450 | best = 0; | |
3451 | ||
2030c079 | 3452 | for (objfile *objfile : current_program_space->objfiles ()) |
4d080b46 | 3453 | objfile->expand_symtabs_with_fullname (symtab_to_fullname (sym_tab)); |
51432cca | 3454 | |
2030c079 | 3455 | for (objfile *objfile : current_program_space->objfiles ()) |
8b31193a | 3456 | { |
b669c953 | 3457 | for (compunit_symtab *cu : objfile->compunits ()) |
8b31193a | 3458 | { |
102cc235 | 3459 | for (symtab *s : cu->filetabs ()) |
8b31193a TT |
3460 | { |
3461 | struct linetable *l; | |
3462 | int ind; | |
3463 | ||
3464 | if (FILENAME_CMP (sym_tab->filename, s->filename) != 0) | |
3465 | continue; | |
3466 | if (FILENAME_CMP (symtab_to_fullname (sym_tab), | |
3467 | symtab_to_fullname (s)) != 0) | |
3468 | continue; | |
5b607461 | 3469 | l = s->linetable (); |
8b31193a TT |
3470 | ind = find_line_common (l, line, &exact, 0); |
3471 | if (ind >= 0) | |
3472 | { | |
3473 | if (exact) | |
3474 | { | |
3475 | best_index = ind; | |
3476 | best_linetable = l; | |
3477 | best_symtab = s; | |
3478 | goto done; | |
3479 | } | |
3480 | if (best == 0 || l->item[ind].line < best) | |
3481 | { | |
3482 | best = l->item[ind].line; | |
3483 | best_index = ind; | |
3484 | best_linetable = l; | |
3485 | best_symtab = s; | |
3486 | } | |
3487 | } | |
3488 | } | |
3489 | } | |
3490 | } | |
c906108c | 3491 | } |
c5aa993b | 3492 | done: |
c906108c SS |
3493 | if (best_index < 0) |
3494 | return NULL; | |
3495 | ||
3496 | if (index) | |
3497 | *index = best_index; | |
3498 | if (exact_match) | |
ececd218 | 3499 | *exact_match = (exact != 0); |
c906108c SS |
3500 | |
3501 | return best_symtab; | |
3502 | } | |
f8eba3c6 TT |
3503 | |
3504 | /* Given SYMTAB, returns all the PCs function in the symtab that | |
67d89901 TT |
3505 | exactly match LINE. Returns an empty vector if there are no exact |
3506 | matches, but updates BEST_ITEM in this case. */ | |
f8eba3c6 | 3507 | |
67d89901 | 3508 | std::vector<CORE_ADDR> |
f8eba3c6 TT |
3509 | find_pcs_for_symtab_line (struct symtab *symtab, int line, |
3510 | struct linetable_entry **best_item) | |
3511 | { | |
c656bca5 | 3512 | int start = 0; |
67d89901 | 3513 | std::vector<CORE_ADDR> result; |
f8eba3c6 TT |
3514 | |
3515 | /* First, collect all the PCs that are at this line. */ | |
3516 | while (1) | |
3517 | { | |
3518 | int was_exact; | |
3519 | int idx; | |
3520 | ||
5b607461 | 3521 | idx = find_line_common (symtab->linetable (), line, &was_exact, |
8435453b | 3522 | start); |
f8eba3c6 TT |
3523 | if (idx < 0) |
3524 | break; | |
3525 | ||
3526 | if (!was_exact) | |
3527 | { | |
5b607461 | 3528 | struct linetable_entry *item = &symtab->linetable ()->item[idx]; |
f8eba3c6 | 3529 | |
8c95582d AB |
3530 | if (*best_item == NULL |
3531 | || (item->line < (*best_item)->line && item->is_stmt)) | |
f8eba3c6 TT |
3532 | *best_item = item; |
3533 | ||
3534 | break; | |
3535 | } | |
3536 | ||
5b607461 | 3537 | result.push_back (symtab->linetable ()->item[idx].pc); |
f8eba3c6 TT |
3538 | start = idx + 1; |
3539 | } | |
3540 | ||
3541 | return result; | |
3542 | } | |
3543 | ||
c906108c SS |
3544 | \f |
3545 | /* Set the PC value for a given source file and line number and return true. | |
ececd218 | 3546 | Returns false for invalid line number (and sets the PC to 0). |
c906108c SS |
3547 | The source file is specified with a struct symtab. */ |
3548 | ||
ececd218 | 3549 | bool |
fba45db2 | 3550 | find_line_pc (struct symtab *symtab, int line, CORE_ADDR *pc) |
c906108c SS |
3551 | { |
3552 | struct linetable *l; | |
3553 | int ind; | |
3554 | ||
3555 | *pc = 0; | |
3556 | if (symtab == 0) | |
ececd218 | 3557 | return false; |
c906108c SS |
3558 | |
3559 | symtab = find_line_symtab (symtab, line, &ind, NULL); | |
3560 | if (symtab != NULL) | |
3561 | { | |
5b607461 | 3562 | l = symtab->linetable (); |
c906108c | 3563 | *pc = l->item[ind].pc; |
ececd218 | 3564 | return true; |
c906108c SS |
3565 | } |
3566 | else | |
ececd218 | 3567 | return false; |
c906108c SS |
3568 | } |
3569 | ||
3570 | /* Find the range of pc values in a line. | |
3571 | Store the starting pc of the line into *STARTPTR | |
3572 | and the ending pc (start of next line) into *ENDPTR. | |
ececd218 CB |
3573 | Returns true to indicate success. |
3574 | Returns false if could not find the specified line. */ | |
c906108c | 3575 | |
ececd218 | 3576 | bool |
fba45db2 KB |
3577 | find_line_pc_range (struct symtab_and_line sal, CORE_ADDR *startptr, |
3578 | CORE_ADDR *endptr) | |
c906108c SS |
3579 | { |
3580 | CORE_ADDR startaddr; | |
3581 | struct symtab_and_line found_sal; | |
3582 | ||
3583 | startaddr = sal.pc; | |
c5aa993b | 3584 | if (startaddr == 0 && !find_line_pc (sal.symtab, sal.line, &startaddr)) |
ececd218 | 3585 | return false; |
c906108c SS |
3586 | |
3587 | /* This whole function is based on address. For example, if line 10 has | |
3588 | two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then | |
3589 | "info line *0x123" should say the line goes from 0x100 to 0x200 | |
3590 | and "info line *0x355" should say the line goes from 0x300 to 0x400. | |
3591 | This also insures that we never give a range like "starts at 0x134 | |
3592 | and ends at 0x12c". */ | |
3593 | ||
3594 | found_sal = find_pc_sect_line (startaddr, sal.section, 0); | |
3595 | if (found_sal.line != sal.line) | |
3596 | { | |
3597 | /* The specified line (sal) has zero bytes. */ | |
3598 | *startptr = found_sal.pc; | |
3599 | *endptr = found_sal.pc; | |
3600 | } | |
3601 | else | |
3602 | { | |
3603 | *startptr = found_sal.pc; | |
3604 | *endptr = found_sal.end; | |
3605 | } | |
ececd218 | 3606 | return true; |
c906108c SS |
3607 | } |
3608 | ||
3609 | /* Given a line table and a line number, return the index into the line | |
3610 | table for the pc of the nearest line whose number is >= the specified one. | |
3611 | Return -1 if none is found. The value is >= 0 if it is an index. | |
f8eba3c6 | 3612 | START is the index at which to start searching the line table. |
c906108c SS |
3613 | |
3614 | Set *EXACT_MATCH nonzero if the value returned is an exact match. */ | |
3615 | ||
3616 | static int | |
aa1ee363 | 3617 | find_line_common (struct linetable *l, int lineno, |
f8eba3c6 | 3618 | int *exact_match, int start) |
c906108c | 3619 | { |
52f0bd74 AC |
3620 | int i; |
3621 | int len; | |
c906108c SS |
3622 | |
3623 | /* BEST is the smallest linenumber > LINENO so far seen, | |
3624 | or 0 if none has been seen so far. | |
3625 | BEST_INDEX identifies the item for it. */ | |
3626 | ||
3627 | int best_index = -1; | |
3628 | int best = 0; | |
3629 | ||
b7589f7d DJ |
3630 | *exact_match = 0; |
3631 | ||
c906108c SS |
3632 | if (lineno <= 0) |
3633 | return -1; | |
3634 | if (l == 0) | |
3635 | return -1; | |
3636 | ||
3637 | len = l->nitems; | |
f8eba3c6 | 3638 | for (i = start; i < len; i++) |
c906108c | 3639 | { |
aa1ee363 | 3640 | struct linetable_entry *item = &(l->item[i]); |
c906108c | 3641 | |
8c95582d AB |
3642 | /* Ignore non-statements. */ |
3643 | if (!item->is_stmt) | |
3644 | continue; | |
3645 | ||
c906108c SS |
3646 | if (item->line == lineno) |
3647 | { | |
3648 | /* Return the first (lowest address) entry which matches. */ | |
3649 | *exact_match = 1; | |
3650 | return i; | |
3651 | } | |
3652 | ||
3653 | if (item->line > lineno && (best == 0 || item->line < best)) | |
3654 | { | |
3655 | best = item->line; | |
3656 | best_index = i; | |
3657 | } | |
3658 | } | |
3659 | ||
3660 | /* If we got here, we didn't get an exact match. */ | |
c906108c SS |
3661 | return best_index; |
3662 | } | |
3663 | ||
ececd218 | 3664 | bool |
fba45db2 | 3665 | find_pc_line_pc_range (CORE_ADDR pc, CORE_ADDR *startptr, CORE_ADDR *endptr) |
c906108c SS |
3666 | { |
3667 | struct symtab_and_line sal; | |
433759f7 | 3668 | |
c906108c SS |
3669 | sal = find_pc_line (pc, 0); |
3670 | *startptr = sal.pc; | |
3671 | *endptr = sal.end; | |
3672 | return sal.symtab != 0; | |
3673 | } | |
3674 | ||
cd2bb709 PA |
3675 | /* Helper for find_function_start_sal. Does most of the work, except |
3676 | setting the sal's symbol. */ | |
aab2f208 | 3677 | |
cd2bb709 PA |
3678 | static symtab_and_line |
3679 | find_function_start_sal_1 (CORE_ADDR func_addr, obj_section *section, | |
3680 | bool funfirstline) | |
aab2f208 | 3681 | { |
42ddae10 | 3682 | symtab_and_line sal = find_pc_sect_line (func_addr, section, 0); |
aab2f208 | 3683 | |
6e22494e | 3684 | if (funfirstline && sal.symtab != NULL |
c6159652 | 3685 | && (sal.symtab->compunit ()->locations_valid () |
1ee2e9f9 | 3686 | || sal.symtab->language () == language_asm)) |
6e22494e | 3687 | { |
3c86fae3 | 3688 | struct gdbarch *gdbarch = sal.symtab->compunit ()->objfile ()->arch (); |
141c5cc4 | 3689 | |
42ddae10 | 3690 | sal.pc = func_addr; |
141c5cc4 JK |
3691 | if (gdbarch_skip_entrypoint_p (gdbarch)) |
3692 | sal.pc = gdbarch_skip_entrypoint (gdbarch, sal.pc); | |
6e22494e JK |
3693 | return sal; |
3694 | } | |
3695 | ||
aab2f208 | 3696 | /* We always should have a line for the function start address. |
42ddae10 | 3697 | If we don't, something is odd. Create a plain SAL referring |
aab2f208 DE |
3698 | just the PC and hope that skip_prologue_sal (if requested) |
3699 | can find a line number for after the prologue. */ | |
42ddae10 | 3700 | if (sal.pc < func_addr) |
aab2f208 | 3701 | { |
51abb421 | 3702 | sal = {}; |
aab2f208 | 3703 | sal.pspace = current_program_space; |
42ddae10 | 3704 | sal.pc = func_addr; |
08be3fe3 | 3705 | sal.section = section; |
aab2f208 DE |
3706 | } |
3707 | ||
3708 | if (funfirstline) | |
3709 | skip_prologue_sal (&sal); | |
3710 | ||
3711 | return sal; | |
3712 | } | |
3713 | ||
42ddae10 PA |
3714 | /* See symtab.h. */ |
3715 | ||
cd2bb709 PA |
3716 | symtab_and_line |
3717 | find_function_start_sal (CORE_ADDR func_addr, obj_section *section, | |
3718 | bool funfirstline) | |
3719 | { | |
3720 | symtab_and_line sal | |
3721 | = find_function_start_sal_1 (func_addr, section, funfirstline); | |
3722 | ||
3723 | /* find_function_start_sal_1 does a linetable search, so it finds | |
3724 | the symtab and linenumber, but not a symbol. Fill in the | |
3725 | function symbol too. */ | |
3726 | sal.symbol = find_pc_sect_containing_function (sal.pc, sal.section); | |
3727 | ||
3728 | return sal; | |
3729 | } | |
3730 | ||
3731 | /* See symtab.h. */ | |
3732 | ||
42ddae10 PA |
3733 | symtab_and_line |
3734 | find_function_start_sal (symbol *sym, bool funfirstline) | |
3735 | { | |
3736 | fixup_symbol_section (sym, NULL); | |
3737 | symtab_and_line sal | |
6395b628 | 3738 | = find_function_start_sal_1 (sym->value_block ()->entry_pc (), |
e19b2d94 | 3739 | sym->obj_section (sym->objfile ()), |
cd2bb709 | 3740 | funfirstline); |
42ddae10 PA |
3741 | sal.symbol = sym; |
3742 | return sal; | |
3743 | } | |
3744 | ||
3745 | ||
8c7a1ee8 EZ |
3746 | /* Given a function start address FUNC_ADDR and SYMTAB, find the first |
3747 | address for that function that has an entry in SYMTAB's line info | |
3748 | table. If such an entry cannot be found, return FUNC_ADDR | |
3749 | unaltered. */ | |
eca864fe | 3750 | |
70221824 | 3751 | static CORE_ADDR |
8c7a1ee8 EZ |
3752 | skip_prologue_using_lineinfo (CORE_ADDR func_addr, struct symtab *symtab) |
3753 | { | |
3754 | CORE_ADDR func_start, func_end; | |
3755 | struct linetable *l; | |
952a6d41 | 3756 | int i; |
8c7a1ee8 EZ |
3757 | |
3758 | /* Give up if this symbol has no lineinfo table. */ | |
5b607461 | 3759 | l = symtab->linetable (); |
8c7a1ee8 EZ |
3760 | if (l == NULL) |
3761 | return func_addr; | |
3762 | ||
3763 | /* Get the range for the function's PC values, or give up if we | |
3764 | cannot, for some reason. */ | |
3765 | if (!find_pc_partial_function (func_addr, NULL, &func_start, &func_end)) | |
3766 | return func_addr; | |
3767 | ||
3768 | /* Linetable entries are ordered by PC values, see the commentary in | |
3769 | symtab.h where `struct linetable' is defined. Thus, the first | |
3770 | entry whose PC is in the range [FUNC_START..FUNC_END[ is the | |
3771 | address we are looking for. */ | |
3772 | for (i = 0; i < l->nitems; i++) | |
3773 | { | |
3774 | struct linetable_entry *item = &(l->item[i]); | |
3775 | ||
3776 | /* Don't use line numbers of zero, they mark special entries in | |
3777 | the table. See the commentary on symtab.h before the | |
3778 | definition of struct linetable. */ | |
3779 | if (item->line > 0 && func_start <= item->pc && item->pc < func_end) | |
3780 | return item->pc; | |
3781 | } | |
3782 | ||
3783 | return func_addr; | |
3784 | } | |
3785 | ||
cc96ae7f LS |
3786 | /* Try to locate the address where a breakpoint should be placed past the |
3787 | prologue of function starting at FUNC_ADDR using the line table. | |
3788 | ||
3789 | Return the address associated with the first entry in the line-table for | |
3790 | the function starting at FUNC_ADDR which has prologue_end set to true if | |
3791 | such entry exist, otherwise return an empty optional. */ | |
3792 | ||
3793 | static gdb::optional<CORE_ADDR> | |
3794 | skip_prologue_using_linetable (CORE_ADDR func_addr) | |
3795 | { | |
3796 | CORE_ADDR start_pc, end_pc; | |
3797 | ||
3798 | if (!find_pc_partial_function (func_addr, nullptr, &start_pc, &end_pc)) | |
3799 | return {}; | |
3800 | ||
3801 | const struct symtab_and_line prologue_sal = find_pc_line (start_pc, 0); | |
3802 | if (prologue_sal.symtab != nullptr | |
3803 | && prologue_sal.symtab->language () != language_asm) | |
3804 | { | |
3805 | struct linetable *linetable = prologue_sal.symtab->linetable (); | |
3806 | ||
3807 | auto it = std::lower_bound | |
3808 | (linetable->item, linetable->item + linetable->nitems, start_pc, | |
3809 | [] (const linetable_entry <e, CORE_ADDR pc) -> bool | |
3810 | { | |
3811 | return lte.pc < pc; | |
3812 | }); | |
3813 | ||
3814 | for (; | |
3815 | it < linetable->item + linetable->nitems && it->pc <= end_pc; | |
3816 | it++) | |
3817 | if (it->prologue_end) | |
3818 | return {it->pc}; | |
3819 | } | |
3820 | ||
3821 | return {}; | |
3822 | } | |
3823 | ||
059acae7 UW |
3824 | /* Adjust SAL to the first instruction past the function prologue. |
3825 | If the PC was explicitly specified, the SAL is not changed. | |
5b0e2db4 AB |
3826 | If the line number was explicitly specified then the SAL can still be |
3827 | updated, unless the language for SAL is assembler, in which case the SAL | |
3828 | will be left unchanged. | |
3829 | If SAL is already past the prologue, then do nothing. */ | |
eca864fe | 3830 | |
059acae7 UW |
3831 | void |
3832 | skip_prologue_sal (struct symtab_and_line *sal) | |
3833 | { | |
3834 | struct symbol *sym; | |
3835 | struct symtab_and_line start_sal; | |
8be455d7 | 3836 | CORE_ADDR pc, saved_pc; |
059acae7 UW |
3837 | struct obj_section *section; |
3838 | const char *name; | |
3839 | struct objfile *objfile; | |
3840 | struct gdbarch *gdbarch; | |
3977b71f | 3841 | const struct block *b, *function_block; |
8be455d7 | 3842 | int force_skip, skip; |
c906108c | 3843 | |
a4b411d6 | 3844 | /* Do not change the SAL if PC was specified explicitly. */ |
059acae7 UW |
3845 | if (sal->explicit_pc) |
3846 | return; | |
6c95b8df | 3847 | |
5b0e2db4 AB |
3848 | /* In assembly code, if the user asks for a specific line then we should |
3849 | not adjust the SAL. The user already has instruction level | |
3850 | visibility in this case, so selecting a line other than one requested | |
3851 | is likely to be the wrong choice. */ | |
3852 | if (sal->symtab != nullptr | |
3853 | && sal->explicit_line | |
1ee2e9f9 | 3854 | && sal->symtab->language () == language_asm) |
5b0e2db4 AB |
3855 | return; |
3856 | ||
5ed8105e PA |
3857 | scoped_restore_current_pspace_and_thread restore_pspace_thread; |
3858 | ||
059acae7 | 3859 | switch_to_program_space_and_thread (sal->pspace); |
6c95b8df | 3860 | |
059acae7 UW |
3861 | sym = find_pc_sect_function (sal->pc, sal->section); |
3862 | if (sym != NULL) | |
bccdca4a | 3863 | { |
059acae7 UW |
3864 | fixup_symbol_section (sym, NULL); |
3865 | ||
e19b2d94 | 3866 | objfile = sym->objfile (); |
6395b628 | 3867 | pc = sym->value_block ()->entry_pc (); |
ebbc3a7d | 3868 | section = sym->obj_section (objfile); |
987012b8 | 3869 | name = sym->linkage_name (); |
c906108c | 3870 | } |
059acae7 UW |
3871 | else |
3872 | { | |
7c7b6655 | 3873 | struct bound_minimal_symbol msymbol |
dda83cd7 | 3874 | = lookup_minimal_symbol_by_pc_section (sal->pc, sal->section); |
433759f7 | 3875 | |
7c7b6655 | 3876 | if (msymbol.minsym == NULL) |
5ed8105e | 3877 | return; |
059acae7 | 3878 | |
7c7b6655 | 3879 | objfile = msymbol.objfile; |
4aeddc50 | 3880 | pc = msymbol.value_address (); |
ebbc3a7d | 3881 | section = msymbol.minsym->obj_section (objfile); |
c9d95fa3 | 3882 | name = msymbol.minsym->linkage_name (); |
059acae7 UW |
3883 | } |
3884 | ||
08feed99 | 3885 | gdbarch = objfile->arch (); |
059acae7 | 3886 | |
8be455d7 JK |
3887 | /* Process the prologue in two passes. In the first pass try to skip the |
3888 | prologue (SKIP is true) and verify there is a real need for it (indicated | |
3889 | by FORCE_SKIP). If no such reason was found run a second pass where the | |
3890 | prologue is not skipped (SKIP is false). */ | |
059acae7 | 3891 | |
8be455d7 JK |
3892 | skip = 1; |
3893 | force_skip = 1; | |
059acae7 | 3894 | |
8be455d7 JK |
3895 | /* Be conservative - allow direct PC (without skipping prologue) only if we |
3896 | have proven the CU (Compilation Unit) supports it. sal->SYMTAB does not | |
3897 | have to be set by the caller so we use SYM instead. */ | |
08be3fe3 | 3898 | if (sym != NULL |
4206d69e | 3899 | && sym->symtab ()->compunit ()->locations_valid ()) |
8be455d7 | 3900 | force_skip = 0; |
059acae7 | 3901 | |
8be455d7 JK |
3902 | saved_pc = pc; |
3903 | do | |
c906108c | 3904 | { |
8be455d7 | 3905 | pc = saved_pc; |
4309257c | 3906 | |
cc96ae7f LS |
3907 | /* Check if the compiler explicitly indicated where a breakpoint should |
3908 | be placed to skip the prologue. */ | |
6109f7a3 | 3909 | if (!ignore_prologue_end_flag && skip) |
cc96ae7f LS |
3910 | { |
3911 | gdb::optional<CORE_ADDR> linetable_pc | |
3912 | = skip_prologue_using_linetable (pc); | |
3913 | if (linetable_pc) | |
3914 | { | |
3915 | pc = *linetable_pc; | |
3916 | start_sal = find_pc_sect_line (pc, section, 0); | |
3917 | force_skip = 1; | |
3918 | continue; | |
3919 | } | |
3920 | } | |
3921 | ||
8be455d7 JK |
3922 | /* If the function is in an unmapped overlay, use its unmapped LMA address, |
3923 | so that gdbarch_skip_prologue has something unique to work on. */ | |
3924 | if (section_is_overlay (section) && !section_is_mapped (section)) | |
3925 | pc = overlay_unmapped_address (pc, section); | |
3926 | ||
3927 | /* Skip "first line" of function (which is actually its prologue). */ | |
3928 | pc += gdbarch_deprecated_function_start_offset (gdbarch); | |
591a12a1 | 3929 | if (gdbarch_skip_entrypoint_p (gdbarch)) |
dda83cd7 | 3930 | pc = gdbarch_skip_entrypoint (gdbarch, pc); |
8be455d7 | 3931 | if (skip) |
46a62268 | 3932 | pc = gdbarch_skip_prologue_noexcept (gdbarch, pc); |
8be455d7 JK |
3933 | |
3934 | /* For overlays, map pc back into its mapped VMA range. */ | |
3935 | pc = overlay_mapped_address (pc, section); | |
3936 | ||
3937 | /* Calculate line number. */ | |
059acae7 | 3938 | start_sal = find_pc_sect_line (pc, section, 0); |
8be455d7 JK |
3939 | |
3940 | /* Check if gdbarch_skip_prologue left us in mid-line, and the next | |
3941 | line is still part of the same function. */ | |
3942 | if (skip && start_sal.pc != pc | |
6395b628 | 3943 | && (sym ? (sym->value_block ()->entry_pc () <= start_sal.end |
4b8791e1 | 3944 | && start_sal.end < sym->value_block()->end ()) |
7cbd4a93 TT |
3945 | : (lookup_minimal_symbol_by_pc_section (start_sal.end, section).minsym |
3946 | == lookup_minimal_symbol_by_pc_section (pc, section).minsym))) | |
8be455d7 JK |
3947 | { |
3948 | /* First pc of next line */ | |
3949 | pc = start_sal.end; | |
3950 | /* Recalculate the line number (might not be N+1). */ | |
3951 | start_sal = find_pc_sect_line (pc, section, 0); | |
3952 | } | |
3953 | ||
3954 | /* On targets with executable formats that don't have a concept of | |
3955 | constructors (ELF with .init has, PE doesn't), gcc emits a call | |
3956 | to `__main' in `main' between the prologue and before user | |
3957 | code. */ | |
3958 | if (gdbarch_skip_main_prologue_p (gdbarch) | |
7ccffd7c | 3959 | && name && strcmp_iw (name, "main") == 0) |
8be455d7 JK |
3960 | { |
3961 | pc = gdbarch_skip_main_prologue (gdbarch, pc); | |
3962 | /* Recalculate the line number (might not be N+1). */ | |
3963 | start_sal = find_pc_sect_line (pc, section, 0); | |
3964 | force_skip = 1; | |
3965 | } | |
4309257c | 3966 | } |
8be455d7 | 3967 | while (!force_skip && skip--); |
4309257c | 3968 | |
8c7a1ee8 EZ |
3969 | /* If we still don't have a valid source line, try to find the first |
3970 | PC in the lineinfo table that belongs to the same function. This | |
3971 | happens with COFF debug info, which does not seem to have an | |
3972 | entry in lineinfo table for the code after the prologue which has | |
3973 | no direct relation to source. For example, this was found to be | |
3974 | the case with the DJGPP target using "gcc -gcoff" when the | |
3975 | compiler inserted code after the prologue to make sure the stack | |
3976 | is aligned. */ | |
8be455d7 | 3977 | if (!force_skip && sym && start_sal.symtab == NULL) |
8c7a1ee8 | 3978 | { |
4206d69e | 3979 | pc = skip_prologue_using_lineinfo (pc, sym->symtab ()); |
8c7a1ee8 | 3980 | /* Recalculate the line number. */ |
059acae7 | 3981 | start_sal = find_pc_sect_line (pc, section, 0); |
8c7a1ee8 EZ |
3982 | } |
3983 | ||
059acae7 UW |
3984 | /* If we're already past the prologue, leave SAL unchanged. Otherwise |
3985 | forward SAL to the end of the prologue. */ | |
3986 | if (sal->pc >= pc) | |
3987 | return; | |
3988 | ||
3989 | sal->pc = pc; | |
3990 | sal->section = section; | |
059acae7 UW |
3991 | sal->symtab = start_sal.symtab; |
3992 | sal->line = start_sal.line; | |
3993 | sal->end = start_sal.end; | |
c906108c | 3994 | |
edb3359d DJ |
3995 | /* Check if we are now inside an inlined function. If we can, |
3996 | use the call site of the function instead. */ | |
059acae7 | 3997 | b = block_for_pc_sect (sal->pc, sal->section); |
edb3359d DJ |
3998 | function_block = NULL; |
3999 | while (b != NULL) | |
4000 | { | |
6c00f721 | 4001 | if (b->function () != NULL && block_inlined_p (b)) |
edb3359d | 4002 | function_block = b; |
6c00f721 | 4003 | else if (b->function () != NULL) |
edb3359d | 4004 | break; |
f135fe72 | 4005 | b = b->superblock (); |
edb3359d DJ |
4006 | } |
4007 | if (function_block != NULL | |
6c00f721 | 4008 | && function_block->function ()->line () != 0) |
edb3359d | 4009 | { |
6c00f721 SM |
4010 | sal->line = function_block->function ()->line (); |
4011 | sal->symtab = function_block->function ()->symtab (); | |
edb3359d | 4012 | } |
c906108c | 4013 | } |
50641945 | 4014 | |
f1f58506 DE |
4015 | /* Given PC at the function's start address, attempt to find the |
4016 | prologue end using SAL information. Return zero if the skip fails. | |
4017 | ||
4018 | A non-optimized prologue traditionally has one SAL for the function | |
4019 | and a second for the function body. A single line function has | |
4020 | them both pointing at the same line. | |
4021 | ||
4022 | An optimized prologue is similar but the prologue may contain | |
4023 | instructions (SALs) from the instruction body. Need to skip those | |
4024 | while not getting into the function body. | |
4025 | ||
4026 | The functions end point and an increasing SAL line are used as | |
4027 | indicators of the prologue's endpoint. | |
4028 | ||
4029 | This code is based on the function refine_prologue_limit | |
4030 | (found in ia64). */ | |
4031 | ||
4032 | CORE_ADDR | |
4033 | skip_prologue_using_sal (struct gdbarch *gdbarch, CORE_ADDR func_addr) | |
4034 | { | |
4035 | struct symtab_and_line prologue_sal; | |
4036 | CORE_ADDR start_pc; | |
4037 | CORE_ADDR end_pc; | |
4038 | const struct block *bl; | |
4039 | ||
4040 | /* Get an initial range for the function. */ | |
4041 | find_pc_partial_function (func_addr, NULL, &start_pc, &end_pc); | |
4042 | start_pc += gdbarch_deprecated_function_start_offset (gdbarch); | |
4043 | ||
4044 | prologue_sal = find_pc_line (start_pc, 0); | |
4045 | if (prologue_sal.line != 0) | |
4046 | { | |
4047 | /* For languages other than assembly, treat two consecutive line | |
4048 | entries at the same address as a zero-instruction prologue. | |
4049 | The GNU assembler emits separate line notes for each instruction | |
4050 | in a multi-instruction macro, but compilers generally will not | |
4051 | do this. */ | |
1ee2e9f9 | 4052 | if (prologue_sal.symtab->language () != language_asm) |
f1f58506 | 4053 | { |
5b607461 | 4054 | struct linetable *linetable = prologue_sal.symtab->linetable (); |
f1f58506 DE |
4055 | int idx = 0; |
4056 | ||
4057 | /* Skip any earlier lines, and any end-of-sequence marker | |
4058 | from a previous function. */ | |
4059 | while (linetable->item[idx].pc != prologue_sal.pc | |
4060 | || linetable->item[idx].line == 0) | |
4061 | idx++; | |
4062 | ||
4063 | if (idx+1 < linetable->nitems | |
4064 | && linetable->item[idx+1].line != 0 | |
4065 | && linetable->item[idx+1].pc == start_pc) | |
4066 | return start_pc; | |
4067 | } | |
4068 | ||
4069 | /* If there is only one sal that covers the entire function, | |
4070 | then it is probably a single line function, like | |
4071 | "foo(){}". */ | |
4072 | if (prologue_sal.end >= end_pc) | |
4073 | return 0; | |
4074 | ||
4075 | while (prologue_sal.end < end_pc) | |
4076 | { | |
4077 | struct symtab_and_line sal; | |
4078 | ||
4079 | sal = find_pc_line (prologue_sal.end, 0); | |
4080 | if (sal.line == 0) | |
4081 | break; | |
4082 | /* Assume that a consecutive SAL for the same (or larger) | |
4083 | line mark the prologue -> body transition. */ | |
4084 | if (sal.line >= prologue_sal.line) | |
4085 | break; | |
4086 | /* Likewise if we are in a different symtab altogether | |
4087 | (e.g. within a file included via #include). */ | |
4088 | if (sal.symtab != prologue_sal.symtab) | |
4089 | break; | |
4090 | ||
4091 | /* The line number is smaller. Check that it's from the | |
4092 | same function, not something inlined. If it's inlined, | |
4093 | then there is no point comparing the line numbers. */ | |
4094 | bl = block_for_pc (prologue_sal.end); | |
4095 | while (bl) | |
4096 | { | |
4097 | if (block_inlined_p (bl)) | |
4098 | break; | |
6c00f721 | 4099 | if (bl->function ()) |
f1f58506 DE |
4100 | { |
4101 | bl = NULL; | |
4102 | break; | |
4103 | } | |
f135fe72 | 4104 | bl = bl->superblock (); |
f1f58506 DE |
4105 | } |
4106 | if (bl != NULL) | |
4107 | break; | |
4108 | ||
4109 | /* The case in which compiler's optimizer/scheduler has | |
4110 | moved instructions into the prologue. We look ahead in | |
4111 | the function looking for address ranges whose | |
4112 | corresponding line number is less the first one that we | |
4113 | found for the function. This is more conservative then | |
4114 | refine_prologue_limit which scans a large number of SALs | |
4115 | looking for any in the prologue. */ | |
4116 | prologue_sal = sal; | |
4117 | } | |
4118 | } | |
4119 | ||
4120 | if (prologue_sal.end < end_pc) | |
4121 | /* Return the end of this line, or zero if we could not find a | |
4122 | line. */ | |
4123 | return prologue_sal.end; | |
4124 | else | |
4125 | /* Don't return END_PC, which is past the end of the function. */ | |
4126 | return prologue_sal.pc; | |
4127 | } | |
bf223d3e PA |
4128 | |
4129 | /* See symtab.h. */ | |
4130 | ||
4131 | symbol * | |
4132 | find_function_alias_target (bound_minimal_symbol msymbol) | |
4133 | { | |
4024cf2b PA |
4134 | CORE_ADDR func_addr; |
4135 | if (!msymbol_is_function (msymbol.objfile, msymbol.minsym, &func_addr)) | |
bf223d3e PA |
4136 | return NULL; |
4137 | ||
4024cf2b | 4138 | symbol *sym = find_pc_function (func_addr); |
bf223d3e | 4139 | if (sym != NULL |
66d7f48f | 4140 | && sym->aclass () == LOC_BLOCK |
6395b628 | 4141 | && sym->value_block ()->entry_pc () == func_addr) |
bf223d3e PA |
4142 | return sym; |
4143 | ||
4144 | return NULL; | |
4145 | } | |
4146 | ||
f1f58506 | 4147 | \f |
c906108c SS |
4148 | /* If P is of the form "operator[ \t]+..." where `...' is |
4149 | some legitimate operator text, return a pointer to the | |
4150 | beginning of the substring of the operator text. | |
4151 | Otherwise, return "". */ | |
eca864fe | 4152 | |
96142726 TT |
4153 | static const char * |
4154 | operator_chars (const char *p, const char **end) | |
c906108c SS |
4155 | { |
4156 | *end = ""; | |
8090b426 | 4157 | if (!startswith (p, CP_OPERATOR_STR)) |
c906108c | 4158 | return *end; |
8090b426 | 4159 | p += CP_OPERATOR_LEN; |
c906108c SS |
4160 | |
4161 | /* Don't get faked out by `operator' being part of a longer | |
4162 | identifier. */ | |
c5aa993b | 4163 | if (isalpha (*p) || *p == '_' || *p == '$' || *p == '\0') |
c906108c SS |
4164 | return *end; |
4165 | ||
4166 | /* Allow some whitespace between `operator' and the operator symbol. */ | |
4167 | while (*p == ' ' || *p == '\t') | |
4168 | p++; | |
4169 | ||
c378eb4e | 4170 | /* Recognize 'operator TYPENAME'. */ |
c906108c | 4171 | |
c5aa993b | 4172 | if (isalpha (*p) || *p == '_' || *p == '$') |
c906108c | 4173 | { |
96142726 | 4174 | const char *q = p + 1; |
433759f7 | 4175 | |
c5aa993b | 4176 | while (isalnum (*q) || *q == '_' || *q == '$') |
c906108c SS |
4177 | q++; |
4178 | *end = q; | |
4179 | return p; | |
4180 | } | |
4181 | ||
53e8ad3d MS |
4182 | while (*p) |
4183 | switch (*p) | |
4184 | { | |
4185 | case '\\': /* regexp quoting */ | |
4186 | if (p[1] == '*') | |
4187 | { | |
3e43a32a | 4188 | if (p[2] == '=') /* 'operator\*=' */ |
53e8ad3d MS |
4189 | *end = p + 3; |
4190 | else /* 'operator\*' */ | |
4191 | *end = p + 2; | |
4192 | return p; | |
4193 | } | |
4194 | else if (p[1] == '[') | |
4195 | { | |
4196 | if (p[2] == ']') | |
3e43a32a MS |
4197 | error (_("mismatched quoting on brackets, " |
4198 | "try 'operator\\[\\]'")); | |
53e8ad3d MS |
4199 | else if (p[2] == '\\' && p[3] == ']') |
4200 | { | |
4201 | *end = p + 4; /* 'operator\[\]' */ | |
4202 | return p; | |
4203 | } | |
4204 | else | |
8a3fe4f8 | 4205 | error (_("nothing is allowed between '[' and ']'")); |
53e8ad3d | 4206 | } |
9af17804 | 4207 | else |
53e8ad3d | 4208 | { |
85102364 | 4209 | /* Gratuitous quote: skip it and move on. */ |
53e8ad3d MS |
4210 | p++; |
4211 | continue; | |
4212 | } | |
4213 | break; | |
4214 | case '!': | |
4215 | case '=': | |
4216 | case '*': | |
4217 | case '/': | |
4218 | case '%': | |
4219 | case '^': | |
4220 | if (p[1] == '=') | |
4221 | *end = p + 2; | |
4222 | else | |
4223 | *end = p + 1; | |
4224 | return p; | |
4225 | case '<': | |
4226 | case '>': | |
4227 | case '+': | |
4228 | case '-': | |
4229 | case '&': | |
4230 | case '|': | |
4231 | if (p[0] == '-' && p[1] == '>') | |
4232 | { | |
c378eb4e | 4233 | /* Struct pointer member operator 'operator->'. */ |
53e8ad3d MS |
4234 | if (p[2] == '*') |
4235 | { | |
4236 | *end = p + 3; /* 'operator->*' */ | |
4237 | return p; | |
4238 | } | |
4239 | else if (p[2] == '\\') | |
4240 | { | |
4241 | *end = p + 4; /* Hopefully 'operator->\*' */ | |
4242 | return p; | |
4243 | } | |
4244 | else | |
4245 | { | |
4246 | *end = p + 2; /* 'operator->' */ | |
4247 | return p; | |
4248 | } | |
4249 | } | |
4250 | if (p[1] == '=' || p[1] == p[0]) | |
4251 | *end = p + 2; | |
4252 | else | |
4253 | *end = p + 1; | |
4254 | return p; | |
4255 | case '~': | |
4256 | case ',': | |
c5aa993b | 4257 | *end = p + 1; |
53e8ad3d MS |
4258 | return p; |
4259 | case '(': | |
4260 | if (p[1] != ')') | |
3e43a32a MS |
4261 | error (_("`operator ()' must be specified " |
4262 | "without whitespace in `()'")); | |
c5aa993b | 4263 | *end = p + 2; |
53e8ad3d MS |
4264 | return p; |
4265 | case '?': | |
4266 | if (p[1] != ':') | |
3e43a32a MS |
4267 | error (_("`operator ?:' must be specified " |
4268 | "without whitespace in `?:'")); | |
53e8ad3d MS |
4269 | *end = p + 2; |
4270 | return p; | |
4271 | case '[': | |
4272 | if (p[1] != ']') | |
3e43a32a MS |
4273 | error (_("`operator []' must be specified " |
4274 | "without whitespace in `[]'")); | |
53e8ad3d MS |
4275 | *end = p + 2; |
4276 | return p; | |
4277 | default: | |
8a3fe4f8 | 4278 | error (_("`operator %s' not supported"), p); |
53e8ad3d MS |
4279 | break; |
4280 | } | |
4281 | ||
c906108c SS |
4282 | *end = ""; |
4283 | return *end; | |
4284 | } | |
c906108c | 4285 | \f |
c5aa993b | 4286 | |
4a0788e0 | 4287 | /* See class declaration. */ |
9fdc877b | 4288 | |
4a0788e0 AB |
4289 | info_sources_filter::info_sources_filter (match_on match_type, |
4290 | const char *regexp) | |
4291 | : m_match_type (match_type), | |
4292 | m_regexp (regexp) | |
9fdc877b | 4293 | { |
4a0788e0 AB |
4294 | /* Setup the compiled regular expression M_C_REGEXP based on M_REGEXP. */ |
4295 | if (m_regexp != nullptr && *m_regexp != '\0') | |
4296 | { | |
4297 | gdb_assert (m_regexp != nullptr); | |
28cd9371 | 4298 | |
4a0788e0 AB |
4299 | int cflags = REG_NOSUB; |
4300 | #ifdef HAVE_CASE_INSENSITIVE_FILE_SYSTEM | |
4301 | cflags |= REG_ICASE; | |
4302 | #endif | |
4303 | m_c_regexp.emplace (m_regexp, cflags, _("Invalid regexp")); | |
4304 | } | |
4305 | } | |
28cd9371 | 4306 | |
4a0788e0 | 4307 | /* See class declaration. */ |
9fdc877b | 4308 | |
4a0788e0 AB |
4309 | bool |
4310 | info_sources_filter::matches (const char *fullname) const | |
4311 | { | |
4312 | /* Does it match regexp? */ | |
4313 | if (m_c_regexp.has_value ()) | |
4314 | { | |
4315 | const char *to_match; | |
4316 | std::string dirname; | |
4317 | ||
4318 | switch (m_match_type) | |
4319 | { | |
4320 | case match_on::DIRNAME: | |
4321 | dirname = ldirname (fullname); | |
4322 | to_match = dirname.c_str (); | |
4323 | break; | |
4324 | case match_on::BASENAME: | |
4325 | to_match = lbasename (fullname); | |
4326 | break; | |
4327 | case match_on::FULLNAME: | |
4328 | to_match = fullname; | |
4329 | break; | |
b6aeb717 TT |
4330 | default: |
4331 | gdb_assert_not_reached ("bad m_match_type"); | |
4a0788e0 AB |
4332 | } |
4333 | ||
4334 | if (m_c_regexp->exec (to_match, 0, NULL, 0) != 0) | |
4335 | return false; | |
4336 | } | |
4337 | ||
4338 | return true; | |
4339 | } | |
4340 | ||
4a0788e0 AB |
4341 | /* Data structure to maintain the state used for printing the results of |
4342 | the 'info sources' command. */ | |
4343 | ||
4344 | struct output_source_filename_data | |
4345 | { | |
4346 | /* Create an object for displaying the results of the 'info sources' | |
0e350a05 AB |
4347 | command to UIOUT. FILTER must remain valid and unchanged for the |
4348 | lifetime of this object as this object retains a reference to FILTER. */ | |
4349 | output_source_filename_data (struct ui_out *uiout, | |
4350 | const info_sources_filter &filter) | |
4351 | : m_filter (filter), | |
4352 | m_uiout (uiout) | |
4a0788e0 AB |
4353 | { /* Nothing. */ } |
4354 | ||
4355 | DISABLE_COPY_AND_ASSIGN (output_source_filename_data); | |
4356 | ||
4357 | /* Reset enough state of this object so we can match against a new set of | |
4358 | files. The existing regular expression is retained though. */ | |
4359 | void reset_output () | |
4360 | { | |
4361 | m_first = true; | |
4362 | m_filename_seen_cache.clear (); | |
4363 | } | |
4364 | ||
0e350a05 AB |
4365 | /* Worker for sources_info, outputs the file name formatted for either |
4366 | cli or mi (based on the current_uiout). In cli mode displays | |
4367 | FULLNAME with a comma separating this name from any previously | |
4368 | printed name (line breaks are added at the comma). In MI mode | |
4369 | outputs a tuple containing DISP_NAME (the files display name), | |
4370 | FULLNAME, and EXPANDED_P (true when this file is from a fully | |
4371 | expanded symtab, otherwise false). */ | |
4372 | void output (const char *disp_name, const char *fullname, bool expanded_p); | |
eca864fe | 4373 | |
f4655dee TT |
4374 | /* An overload suitable for use as a callback to |
4375 | quick_symbol_functions::map_symbol_filenames. */ | |
4376 | void operator() (const char *filename, const char *fullname) | |
4377 | { | |
0e350a05 AB |
4378 | /* The false here indicates that this file is from an unexpanded |
4379 | symtab. */ | |
4380 | output (filename, fullname, false); | |
f4655dee | 4381 | } |
4a0788e0 | 4382 | |
bd742128 AB |
4383 | /* Return true if at least one filename has been printed (after a call to |
4384 | output) since either this object was created, or the last call to | |
4385 | reset_output. */ | |
4386 | bool printed_filename_p () const | |
4387 | { | |
4388 | return !m_first; | |
4389 | } | |
4390 | ||
4a0788e0 AB |
4391 | private: |
4392 | ||
4393 | /* Flag of whether we're printing the first one. */ | |
4394 | bool m_first = true; | |
4395 | ||
4396 | /* Cache of what we've seen so far. */ | |
4397 | filename_seen_cache m_filename_seen_cache; | |
4398 | ||
4399 | /* How source filename should be filtered. */ | |
4400 | const info_sources_filter &m_filter; | |
0e350a05 AB |
4401 | |
4402 | /* The object to which output is sent. */ | |
4403 | struct ui_out *m_uiout; | |
f4655dee TT |
4404 | }; |
4405 | ||
4a0788e0 AB |
4406 | /* See comment in class declaration above. */ |
4407 | ||
f4655dee | 4408 | void |
0e350a05 AB |
4409 | output_source_filename_data::output (const char *disp_name, |
4410 | const char *fullname, | |
4411 | bool expanded_p) | |
c94fdfd0 EZ |
4412 | { |
4413 | /* Since a single source file can result in several partial symbol | |
4414 | tables, we need to avoid printing it more than once. Note: if | |
4415 | some of the psymtabs are read in and some are not, it gets | |
4416 | printed both under "Source files for which symbols have been | |
4417 | read" and "Source files for which symbols will be read in on | |
4418 | demand". I consider this a reasonable way to deal with the | |
4419 | situation. I'm not sure whether this can also happen for | |
4420 | symtabs; it doesn't hurt to check. */ | |
4421 | ||
4a0788e0 | 4422 | /* Was NAME already seen? If so, then don't print it again. */ |
0e350a05 | 4423 | if (m_filename_seen_cache.seen (fullname)) |
4a0788e0 | 4424 | return; |
28cd9371 | 4425 | |
4a0788e0 | 4426 | /* If the filter rejects this file then don't print it. */ |
0e350a05 | 4427 | if (!m_filter.matches (fullname)) |
4a0788e0 | 4428 | return; |
28cd9371 | 4429 | |
0e350a05 AB |
4430 | ui_out_emit_tuple ui_emitter (m_uiout, nullptr); |
4431 | ||
28cd9371 | 4432 | /* Print it and reset *FIRST. */ |
4a0788e0 | 4433 | if (!m_first) |
0e350a05 | 4434 | m_uiout->text (", "); |
4a0788e0 | 4435 | m_first = false; |
c906108c | 4436 | |
1285ce86 | 4437 | m_uiout->wrap_hint (0); |
0e350a05 AB |
4438 | if (m_uiout->is_mi_like_p ()) |
4439 | { | |
4440 | m_uiout->field_string ("file", disp_name, file_name_style.style ()); | |
4441 | if (fullname != nullptr) | |
4442 | m_uiout->field_string ("fullname", fullname, | |
4443 | file_name_style.style ()); | |
4444 | m_uiout->field_string ("debug-fully-read", | |
4445 | (expanded_p ? "true" : "false")); | |
4446 | } | |
4447 | else | |
4448 | { | |
4449 | if (fullname == nullptr) | |
4450 | fullname = disp_name; | |
4451 | m_uiout->field_string ("fullname", fullname, | |
4452 | file_name_style.style ()); | |
4453 | } | |
c5aa993b | 4454 | } |
c906108c | 4455 | |
4a0788e0 AB |
4456 | /* For the 'info sources' command, what part of the file names should we be |
4457 | matching the user supplied regular expression against? */ | |
4458 | ||
4459 | struct filename_partial_match_opts | |
4460 | { | |
4461 | /* Only match the directory name part. */ | |
4462 | bool dirname = false; | |
4463 | ||
4464 | /* Only match the basename part. */ | |
4465 | bool basename = false; | |
4466 | }; | |
4467 | ||
28cd9371 PW |
4468 | using isrc_flag_option_def |
4469 | = gdb::option::flag_option_def<filename_partial_match_opts>; | |
4470 | ||
4471 | static const gdb::option::option_def info_sources_option_defs[] = { | |
4472 | ||
4473 | isrc_flag_option_def { | |
4474 | "dirname", | |
4475 | [] (filename_partial_match_opts *opts) { return &opts->dirname; }, | |
4476 | N_("Show only the files having a dirname matching REGEXP."), | |
4477 | }, | |
4478 | ||
4479 | isrc_flag_option_def { | |
4480 | "basename", | |
4481 | [] (filename_partial_match_opts *opts) { return &opts->basename; }, | |
4482 | N_("Show only the files having a basename matching REGEXP."), | |
4483 | }, | |
4484 | ||
4485 | }; | |
4486 | ||
4487 | /* Create an option_def_group for the "info sources" options, with | |
4488 | ISRC_OPTS as context. */ | |
4489 | ||
4490 | static inline gdb::option::option_def_group | |
4491 | make_info_sources_options_def_group (filename_partial_match_opts *isrc_opts) | |
4492 | { | |
4493 | return {{info_sources_option_defs}, isrc_opts}; | |
4494 | } | |
4495 | ||
28cd9371 PW |
4496 | /* Completer for "info sources". */ |
4497 | ||
4498 | static void | |
4499 | info_sources_command_completer (cmd_list_element *ignore, | |
4500 | completion_tracker &tracker, | |
4501 | const char *text, const char *word) | |
4502 | { | |
4503 | const auto group = make_info_sources_options_def_group (nullptr); | |
4504 | if (gdb::option::complete_options | |
4505 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
4506 | return; | |
4507 | } | |
4508 | ||
0e350a05 AB |
4509 | /* See symtab.h. */ |
4510 | ||
4511 | void | |
4512 | info_sources_worker (struct ui_out *uiout, | |
1fb1ce02 | 4513 | bool group_by_objfile, |
0e350a05 AB |
4514 | const info_sources_filter &filter) |
4515 | { | |
4516 | output_source_filename_data data (uiout, filter); | |
4517 | ||
4518 | ui_out_emit_list results_emitter (uiout, "files"); | |
4519 | gdb::optional<ui_out_emit_tuple> output_tuple; | |
4520 | gdb::optional<ui_out_emit_list> sources_list; | |
4521 | ||
bd742128 | 4522 | gdb_assert (group_by_objfile || uiout->is_mi_like_p ()); |
0e350a05 AB |
4523 | |
4524 | for (objfile *objfile : current_program_space->objfiles ()) | |
4525 | { | |
1fb1ce02 AB |
4526 | if (group_by_objfile) |
4527 | { | |
4528 | output_tuple.emplace (uiout, nullptr); | |
972f7a4b TT |
4529 | uiout->field_string ("filename", objfile_name (objfile), |
4530 | file_name_style.style ()); | |
bd742128 | 4531 | uiout->text (":\n"); |
1fb1ce02 | 4532 | bool debug_fully_readin = !objfile->has_unexpanded_symtabs (); |
bd742128 | 4533 | if (uiout->is_mi_like_p ()) |
1fb1ce02 | 4534 | { |
bd742128 AB |
4535 | const char *debug_info_state; |
4536 | if (objfile_has_symbols (objfile)) | |
4537 | { | |
4538 | if (debug_fully_readin) | |
4539 | debug_info_state = "fully-read"; | |
4540 | else | |
4541 | debug_info_state = "partially-read"; | |
4542 | } | |
1fb1ce02 | 4543 | else |
bd742128 AB |
4544 | debug_info_state = "none"; |
4545 | current_uiout->field_string ("debug-info", debug_info_state); | |
1fb1ce02 AB |
4546 | } |
4547 | else | |
bd742128 AB |
4548 | { |
4549 | if (!debug_fully_readin) | |
4550 | uiout->text ("(Full debug information has not yet been read " | |
4551 | "for this file.)\n"); | |
4552 | if (!objfile_has_symbols (objfile)) | |
4553 | uiout->text ("(Objfile has no debug information.)\n"); | |
4554 | uiout->text ("\n"); | |
4555 | } | |
1fb1ce02 AB |
4556 | sources_list.emplace (uiout, "sources"); |
4557 | } | |
4558 | ||
0e350a05 AB |
4559 | for (compunit_symtab *cu : objfile->compunits ()) |
4560 | { | |
102cc235 | 4561 | for (symtab *s : cu->filetabs ()) |
0e350a05 AB |
4562 | { |
4563 | const char *file = symtab_to_filename_for_display (s); | |
4564 | const char *fullname = symtab_to_fullname (s); | |
4565 | data.output (file, fullname, true); | |
4566 | } | |
4567 | } | |
1fb1ce02 AB |
4568 | |
4569 | if (group_by_objfile) | |
4570 | { | |
4571 | objfile->map_symbol_filenames (data, true /* need_fullname */); | |
bd742128 AB |
4572 | if (data.printed_filename_p ()) |
4573 | uiout->text ("\n\n"); | |
1fb1ce02 AB |
4574 | data.reset_output (); |
4575 | sources_list.reset (); | |
4576 | output_tuple.reset (); | |
4577 | } | |
0e350a05 AB |
4578 | } |
4579 | ||
1fb1ce02 AB |
4580 | if (!group_by_objfile) |
4581 | { | |
1fb1ce02 AB |
4582 | data.reset_output (); |
4583 | map_symbol_filenames (data, true /*need_fullname*/); | |
1fb1ce02 | 4584 | } |
0e350a05 AB |
4585 | } |
4586 | ||
4a0788e0 AB |
4587 | /* Implement the 'info sources' command. */ |
4588 | ||
28cd9371 PW |
4589 | static void |
4590 | info_sources_command (const char *args, int from_tty) | |
c906108c | 4591 | { |
c906108c | 4592 | if (!have_full_symbols () && !have_partial_symbols ()) |
4a0788e0 | 4593 | error (_("No symbol table is loaded. Use the \"file\" command.")); |
28cd9371 | 4594 | |
4a0788e0 AB |
4595 | filename_partial_match_opts match_opts; |
4596 | auto group = make_info_sources_options_def_group (&match_opts); | |
28cd9371 PW |
4597 | gdb::option::process_options |
4598 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_ERROR, group); | |
9fdc877b | 4599 | |
4a0788e0 AB |
4600 | if (match_opts.dirname && match_opts.basename) |
4601 | error (_("You cannot give both -basename and -dirname to 'info sources'.")); | |
c906108c | 4602 | |
4a0788e0 | 4603 | const char *regex = nullptr; |
0e350a05 | 4604 | if (args != NULL && *args != '\000') |
4a0788e0 | 4605 | regex = args; |
28cd9371 | 4606 | |
4a0788e0 AB |
4607 | if ((match_opts.dirname || match_opts.basename) && regex == nullptr) |
4608 | error (_("Missing REGEXP for 'info sources'.")); | |
28cd9371 | 4609 | |
4a0788e0 AB |
4610 | info_sources_filter::match_on match_type; |
4611 | if (match_opts.dirname) | |
4612 | match_type = info_sources_filter::match_on::DIRNAME; | |
4613 | else if (match_opts.basename) | |
4614 | match_type = info_sources_filter::match_on::BASENAME; | |
28cd9371 | 4615 | else |
4a0788e0 AB |
4616 | match_type = info_sources_filter::match_on::FULLNAME; |
4617 | ||
4618 | info_sources_filter filter (match_type, regex); | |
bd742128 | 4619 | info_sources_worker (current_uiout, true, filter); |
c906108c SS |
4620 | } |
4621 | ||
470c0b1c AB |
4622 | /* Compare FILE against all the entries of FILENAMES. If BASENAMES is |
4623 | true compare only lbasename of FILENAMES. */ | |
fbd9ab74 | 4624 | |
470c0b1c AB |
4625 | static bool |
4626 | file_matches (const char *file, const std::vector<const char *> &filenames, | |
4627 | bool basenames) | |
c906108c | 4628 | { |
470c0b1c AB |
4629 | if (filenames.empty ()) |
4630 | return true; | |
c906108c | 4631 | |
470c0b1c | 4632 | for (const char *name : filenames) |
c906108c | 4633 | { |
470c0b1c AB |
4634 | name = (basenames ? lbasename (name) : name); |
4635 | if (compare_filenames_for_search (file, name)) | |
4636 | return true; | |
c906108c | 4637 | } |
470c0b1c AB |
4638 | |
4639 | return false; | |
c906108c SS |
4640 | } |
4641 | ||
f97a63c5 AB |
4642 | /* Helper function for std::sort on symbol_search objects. Can only sort |
4643 | symbols, not minimal symbols. */ | |
eca864fe | 4644 | |
b9c04fb2 TT |
4645 | int |
4646 | symbol_search::compare_search_syms (const symbol_search &sym_a, | |
4647 | const symbol_search &sym_b) | |
434d2d4f | 4648 | { |
b52109bc DE |
4649 | int c; |
4650 | ||
4206d69e TT |
4651 | c = FILENAME_CMP (sym_a.symbol->symtab ()->filename, |
4652 | sym_b.symbol->symtab ()->filename); | |
b52109bc DE |
4653 | if (c != 0) |
4654 | return c; | |
434d2d4f | 4655 | |
b9c04fb2 TT |
4656 | if (sym_a.block != sym_b.block) |
4657 | return sym_a.block - sym_b.block; | |
b52109bc | 4658 | |
987012b8 | 4659 | return strcmp (sym_a.symbol->print_name (), sym_b.symbol->print_name ()); |
434d2d4f DJ |
4660 | } |
4661 | ||
12615cba PW |
4662 | /* Returns true if the type_name of symbol_type of SYM matches TREG. |
4663 | If SYM has no symbol_type or symbol_name, returns false. */ | |
4664 | ||
4665 | bool | |
4666 | treg_matches_sym_type_name (const compiled_regex &treg, | |
4667 | const struct symbol *sym) | |
4668 | { | |
4669 | struct type *sym_type; | |
4670 | std::string printed_sym_type_name; | |
4671 | ||
4672 | if (symbol_lookup_debug > 1) | |
4673 | { | |
6cb06a8c TT |
4674 | gdb_printf (gdb_stdlog, |
4675 | "treg_matches_sym_type_name\n sym %s\n", | |
4676 | sym->natural_name ()); | |
12615cba PW |
4677 | } |
4678 | ||
5f9c5a63 | 4679 | sym_type = sym->type (); |
12615cba PW |
4680 | if (sym_type == NULL) |
4681 | return false; | |
4682 | ||
43d397ca PW |
4683 | { |
4684 | scoped_switch_to_sym_language_if_auto l (sym); | |
12615cba | 4685 | |
12615cba | 4686 | printed_sym_type_name = type_to_string (sym_type); |
43d397ca PW |
4687 | } |
4688 | ||
12615cba PW |
4689 | |
4690 | if (symbol_lookup_debug > 1) | |
4691 | { | |
6cb06a8c TT |
4692 | gdb_printf (gdb_stdlog, |
4693 | " sym_type_name %s\n", | |
4694 | printed_sym_type_name.c_str ()); | |
12615cba PW |
4695 | } |
4696 | ||
4697 | ||
4698 | if (printed_sym_type_name.empty ()) | |
4699 | return false; | |
4700 | ||
4701 | return treg.exec (printed_sym_type_name.c_str (), 0, NULL, 0) == 0; | |
4702 | } | |
4703 | ||
f97a63c5 AB |
4704 | /* See symtab.h. */ |
4705 | ||
4706 | bool | |
4707 | global_symbol_searcher::is_suitable_msymbol | |
4708 | (const enum search_domain kind, const minimal_symbol *msymbol) | |
4709 | { | |
60f62e2b | 4710 | switch (msymbol->type ()) |
f97a63c5 AB |
4711 | { |
4712 | case mst_data: | |
4713 | case mst_bss: | |
4714 | case mst_file_data: | |
4715 | case mst_file_bss: | |
4716 | return kind == VARIABLES_DOMAIN; | |
4717 | case mst_text: | |
4718 | case mst_file_text: | |
4719 | case mst_solib_trampoline: | |
4720 | case mst_text_gnu_ifunc: | |
4721 | return kind == FUNCTIONS_DOMAIN; | |
4722 | default: | |
4723 | return false; | |
4724 | } | |
4725 | } | |
4726 | ||
4727 | /* See symtab.h. */ | |
4728 | ||
4729 | bool | |
4730 | global_symbol_searcher::expand_symtabs | |
4731 | (objfile *objfile, const gdb::optional<compiled_regex> &preg) const | |
4732 | { | |
4733 | enum search_domain kind = m_kind; | |
4734 | bool found_msymbol = false; | |
4735 | ||
c5a9fcdf TT |
4736 | auto do_file_match = [&] (const char *filename, bool basenames) |
4737 | { | |
4738 | return file_matches (filename, filenames, basenames); | |
4739 | }; | |
4740 | gdb::function_view<expand_symtabs_file_matcher_ftype> file_matcher = nullptr; | |
4741 | if (!filenames.empty ()) | |
4742 | file_matcher = do_file_match; | |
4743 | ||
4d080b46 | 4744 | objfile->expand_symtabs_matching |
c5a9fcdf | 4745 | (file_matcher, |
4d080b46 TT |
4746 | &lookup_name_info::match_any (), |
4747 | [&] (const char *symname) | |
4748 | { | |
4749 | return (!preg.has_value () | |
4750 | || preg->exec (symname, 0, NULL, 0) == 0); | |
4751 | }, | |
4752 | NULL, | |
03a8ea51 | 4753 | SEARCH_GLOBAL_BLOCK | SEARCH_STATIC_BLOCK, |
3bfa51a7 | 4754 | UNDEF_DOMAIN, |
4d080b46 | 4755 | kind); |
f97a63c5 AB |
4756 | |
4757 | /* Here, we search through the minimal symbol tables for functions and | |
4758 | variables that match, and force their symbols to be read. This is in | |
4759 | particular necessary for demangled variable names, which are no longer | |
4760 | put into the partial symbol tables. The symbol will then be found | |
4761 | during the scan of symtabs later. | |
4762 | ||
4763 | For functions, find_pc_symtab should succeed if we have debug info for | |
4764 | the function, for variables we have to call | |
4765 | lookup_symbol_in_objfile_from_linkage_name to determine if the | |
4766 | variable has debug info. If the lookup fails, set found_msymbol so | |
4767 | that we will rescan to print any matching symbols without debug info. | |
4768 | We only search the objfile the msymbol came from, we no longer search | |
4769 | all objfiles. In large programs (1000s of shared libs) searching all | |
4770 | objfiles is not worth the pain. */ | |
4771 | if (filenames.empty () | |
4772 | && (kind == VARIABLES_DOMAIN || kind == FUNCTIONS_DOMAIN)) | |
4773 | { | |
4774 | for (minimal_symbol *msymbol : objfile->msymbols ()) | |
4775 | { | |
4776 | QUIT; | |
4777 | ||
4778 | if (msymbol->created_by_gdb) | |
4779 | continue; | |
4780 | ||
4781 | if (is_suitable_msymbol (kind, msymbol)) | |
4782 | { | |
4783 | if (!preg.has_value () | |
4784 | || preg->exec (msymbol->natural_name (), 0, | |
4785 | NULL, 0) == 0) | |
4786 | { | |
4787 | /* An important side-effect of these lookup functions is | |
4788 | to expand the symbol table if msymbol is found, later | |
4789 | in the process we will add matching symbols or | |
4790 | msymbols to the results list, and that requires that | |
4791 | the symbols tables are expanded. */ | |
4792 | if (kind == FUNCTIONS_DOMAIN | |
4793 | ? (find_pc_compunit_symtab | |
4aeddc50 | 4794 | (msymbol->value_address (objfile)) == NULL) |
f97a63c5 AB |
4795 | : (lookup_symbol_in_objfile_from_linkage_name |
4796 | (objfile, msymbol->linkage_name (), | |
4797 | VAR_DOMAIN) | |
4798 | .symbol == NULL)) | |
4799 | found_msymbol = true; | |
4800 | } | |
4801 | } | |
4802 | } | |
4803 | } | |
4804 | ||
4805 | return found_msymbol; | |
4806 | } | |
4807 | ||
4808 | /* See symtab.h. */ | |
4809 | ||
c2512106 | 4810 | bool |
f97a63c5 AB |
4811 | global_symbol_searcher::add_matching_symbols |
4812 | (objfile *objfile, | |
4813 | const gdb::optional<compiled_regex> &preg, | |
4814 | const gdb::optional<compiled_regex> &treg, | |
c2512106 | 4815 | std::set<symbol_search> *result_set) const |
f97a63c5 AB |
4816 | { |
4817 | enum search_domain kind = m_kind; | |
4818 | ||
4819 | /* Add matching symbols (if not already present). */ | |
4820 | for (compunit_symtab *cust : objfile->compunits ()) | |
4821 | { | |
af39c5c8 | 4822 | const struct blockvector *bv = cust->blockvector (); |
f97a63c5 AB |
4823 | |
4824 | for (block_enum block : { GLOBAL_BLOCK, STATIC_BLOCK }) | |
4825 | { | |
4826 | struct block_iterator iter; | |
4827 | struct symbol *sym; | |
63d609de | 4828 | const struct block *b = bv->block (block); |
f97a63c5 AB |
4829 | |
4830 | ALL_BLOCK_SYMBOLS (b, iter, sym) | |
4831 | { | |
4206d69e | 4832 | struct symtab *real_symtab = sym->symtab (); |
f97a63c5 AB |
4833 | |
4834 | QUIT; | |
4835 | ||
4836 | /* Check first sole REAL_SYMTAB->FILENAME. It does | |
4837 | not need to be a substring of symtab_to_fullname as | |
4838 | it may contain "./" etc. */ | |
4839 | if ((file_matches (real_symtab->filename, filenames, false) | |
4840 | || ((basenames_may_differ | |
4841 | || file_matches (lbasename (real_symtab->filename), | |
4842 | filenames, true)) | |
4843 | && file_matches (symtab_to_fullname (real_symtab), | |
4844 | filenames, false))) | |
4845 | && ((!preg.has_value () | |
4846 | || preg->exec (sym->natural_name (), 0, | |
4847 | NULL, 0) == 0) | |
4848 | && ((kind == VARIABLES_DOMAIN | |
66d7f48f SM |
4849 | && sym->aclass () != LOC_TYPEDEF |
4850 | && sym->aclass () != LOC_UNRESOLVED | |
4851 | && sym->aclass () != LOC_BLOCK | |
f97a63c5 AB |
4852 | /* LOC_CONST can be used for more than |
4853 | just enums, e.g., c++ static const | |
4854 | members. We only want to skip enums | |
4855 | here. */ | |
66d7f48f | 4856 | && !(sym->aclass () == LOC_CONST |
5f9c5a63 | 4857 | && (sym->type ()->code () |
f97a63c5 AB |
4858 | == TYPE_CODE_ENUM)) |
4859 | && (!treg.has_value () | |
4860 | || treg_matches_sym_type_name (*treg, sym))) | |
4861 | || (kind == FUNCTIONS_DOMAIN | |
66d7f48f | 4862 | && sym->aclass () == LOC_BLOCK |
f97a63c5 AB |
4863 | && (!treg.has_value () |
4864 | || treg_matches_sym_type_name (*treg, | |
4865 | sym))) | |
4866 | || (kind == TYPES_DOMAIN | |
66d7f48f | 4867 | && sym->aclass () == LOC_TYPEDEF |
6c9c307c | 4868 | && sym->domain () != MODULE_DOMAIN) |
f97a63c5 | 4869 | || (kind == MODULES_DOMAIN |
6c9c307c | 4870 | && sym->domain () == MODULE_DOMAIN |
5d0027b9 | 4871 | && sym->line () != 0)))) |
f97a63c5 | 4872 | { |
c2512106 AB |
4873 | if (result_set->size () < m_max_search_results) |
4874 | { | |
4875 | /* Match, insert if not already in the results. */ | |
4876 | symbol_search ss (block, sym); | |
4877 | if (result_set->find (ss) == result_set->end ()) | |
4878 | result_set->insert (ss); | |
4879 | } | |
4880 | else | |
4881 | return false; | |
f97a63c5 AB |
4882 | } |
4883 | } | |
4884 | } | |
4885 | } | |
c2512106 AB |
4886 | |
4887 | return true; | |
f97a63c5 AB |
4888 | } |
4889 | ||
4890 | /* See symtab.h. */ | |
4891 | ||
c2512106 | 4892 | bool |
f97a63c5 AB |
4893 | global_symbol_searcher::add_matching_msymbols |
4894 | (objfile *objfile, const gdb::optional<compiled_regex> &preg, | |
4895 | std::vector<symbol_search> *results) const | |
4896 | { | |
4897 | enum search_domain kind = m_kind; | |
4898 | ||
4899 | for (minimal_symbol *msymbol : objfile->msymbols ()) | |
4900 | { | |
4901 | QUIT; | |
4902 | ||
4903 | if (msymbol->created_by_gdb) | |
4904 | continue; | |
4905 | ||
4906 | if (is_suitable_msymbol (kind, msymbol)) | |
4907 | { | |
4908 | if (!preg.has_value () | |
4909 | || preg->exec (msymbol->natural_name (), 0, | |
4910 | NULL, 0) == 0) | |
4911 | { | |
4912 | /* For functions we can do a quick check of whether the | |
4913 | symbol might be found via find_pc_symtab. */ | |
4914 | if (kind != FUNCTIONS_DOMAIN | |
4915 | || (find_pc_compunit_symtab | |
4aeddc50 | 4916 | (msymbol->value_address (objfile)) == NULL)) |
f97a63c5 AB |
4917 | { |
4918 | if (lookup_symbol_in_objfile_from_linkage_name | |
4919 | (objfile, msymbol->linkage_name (), | |
4920 | VAR_DOMAIN).symbol == NULL) | |
4921 | { | |
4922 | /* Matching msymbol, add it to the results list. */ | |
c2512106 AB |
4923 | if (results->size () < m_max_search_results) |
4924 | results->emplace_back (GLOBAL_BLOCK, msymbol, objfile); | |
4925 | else | |
4926 | return false; | |
f97a63c5 AB |
4927 | } |
4928 | } | |
4929 | } | |
4930 | } | |
4931 | } | |
12615cba | 4932 | |
c2512106 | 4933 | return true; |
434d2d4f | 4934 | } |
5bd98722 | 4935 | |
470c0b1c | 4936 | /* See symtab.h. */ |
c378eb4e | 4937 | |
b9c04fb2 | 4938 | std::vector<symbol_search> |
470c0b1c | 4939 | global_symbol_searcher::search () const |
c906108c | 4940 | { |
2d7cc5c7 | 4941 | gdb::optional<compiled_regex> preg; |
12615cba | 4942 | gdb::optional<compiled_regex> treg; |
c906108c | 4943 | |
470c0b1c | 4944 | gdb_assert (m_kind != ALL_DOMAIN); |
e8930875 | 4945 | |
470c0b1c | 4946 | if (m_symbol_name_regexp != NULL) |
c906108c | 4947 | { |
470c0b1c AB |
4948 | const char *symbol_name_regexp = m_symbol_name_regexp; |
4949 | ||
c906108c | 4950 | /* Make sure spacing is right for C++ operators. |
dda83cd7 SM |
4951 | This is just a courtesy to make the matching less sensitive |
4952 | to how many spaces the user leaves between 'operator' | |
4953 | and <TYPENAME> or <OPERATOR>. */ | |
96142726 | 4954 | const char *opend; |
470c0b1c | 4955 | const char *opname = operator_chars (symbol_name_regexp, &opend); |
433759f7 | 4956 | |
c906108c | 4957 | if (*opname) |
c5aa993b | 4958 | { |
3e43a32a | 4959 | int fix = -1; /* -1 means ok; otherwise number of |
dda83cd7 | 4960 | spaces needed. */ |
433759f7 | 4961 | |
c5aa993b JM |
4962 | if (isalpha (*opname) || *opname == '_' || *opname == '$') |
4963 | { | |
c378eb4e | 4964 | /* There should 1 space between 'operator' and 'TYPENAME'. */ |
c5aa993b JM |
4965 | if (opname[-1] != ' ' || opname[-2] == ' ') |
4966 | fix = 1; | |
4967 | } | |
4968 | else | |
4969 | { | |
c378eb4e | 4970 | /* There should 0 spaces between 'operator' and 'OPERATOR'. */ |
c5aa993b JM |
4971 | if (opname[-1] == ' ') |
4972 | fix = 0; | |
4973 | } | |
c378eb4e | 4974 | /* If wrong number of spaces, fix it. */ |
c5aa993b JM |
4975 | if (fix >= 0) |
4976 | { | |
045f55a6 | 4977 | char *tmp = (char *) alloca (8 + fix + strlen (opname) + 1); |
433759f7 | 4978 | |
c5aa993b | 4979 | sprintf (tmp, "operator%.*s%s", fix, " ", opname); |
470c0b1c | 4980 | symbol_name_regexp = tmp; |
c5aa993b JM |
4981 | } |
4982 | } | |
4983 | ||
2d7cc5c7 PA |
4984 | int cflags = REG_NOSUB | (case_sensitivity == case_sensitive_off |
4985 | ? REG_ICASE : 0); | |
470c0b1c AB |
4986 | preg.emplace (symbol_name_regexp, cflags, |
4987 | _("Invalid regexp")); | |
c906108c SS |
4988 | } |
4989 | ||
470c0b1c | 4990 | if (m_symbol_type_regexp != NULL) |
12615cba PW |
4991 | { |
4992 | int cflags = REG_NOSUB | (case_sensitivity == case_sensitive_off | |
4993 | ? REG_ICASE : 0); | |
470c0b1c AB |
4994 | treg.emplace (m_symbol_type_regexp, cflags, |
4995 | _("Invalid regexp")); | |
12615cba PW |
4996 | } |
4997 | ||
f97a63c5 | 4998 | bool found_msymbol = false; |
c2512106 | 4999 | std::set<symbol_search> result_set; |
2030c079 | 5000 | for (objfile *objfile : current_program_space->objfiles ()) |
d8aeb77f | 5001 | { |
f97a63c5 AB |
5002 | /* Expand symtabs within objfile that possibly contain matching |
5003 | symbols. */ | |
5004 | found_msymbol |= expand_symtabs (objfile, preg); | |
5005 | ||
c2512106 AB |
5006 | /* Find matching symbols within OBJFILE and add them in to the |
5007 | RESULT_SET set. Use a set here so that we can easily detect | |
5008 | duplicates as we go, and can therefore track how many unique | |
5009 | matches we have found so far. */ | |
5010 | if (!add_matching_symbols (objfile, preg, treg, &result_set)) | |
5011 | break; | |
d8aeb77f | 5012 | } |
c906108c | 5013 | |
c2512106 AB |
5014 | /* Convert the result set into a sorted result list, as std::set is |
5015 | defined to be sorted then no explicit call to std::sort is needed. */ | |
5016 | std::vector<symbol_search> result (result_set.begin (), result_set.end ()); | |
b52109bc | 5017 | |
470c0b1c | 5018 | /* If there are no debug symbols, then add matching minsyms. But if the |
f97a63c5 AB |
5019 | user wants to see symbols matching a type regexp, then never give a |
5020 | minimal symbol, as we assume that a minimal symbol does not have a | |
5021 | type. */ | |
5022 | if ((found_msymbol || (filenames.empty () && m_kind == VARIABLES_DOMAIN)) | |
470c0b1c | 5023 | && !m_exclude_minsyms |
a8462bbf | 5024 | && !treg.has_value ()) |
c906108c | 5025 | { |
f97a63c5 | 5026 | gdb_assert (m_kind == VARIABLES_DOMAIN || m_kind == FUNCTIONS_DOMAIN); |
2030c079 | 5027 | for (objfile *objfile : current_program_space->objfiles ()) |
c2512106 AB |
5028 | if (!add_matching_msymbols (objfile, preg, &result)) |
5029 | break; | |
c906108c SS |
5030 | } |
5031 | ||
b9c04fb2 | 5032 | return result; |
c906108c SS |
5033 | } |
5034 | ||
5f512a7d | 5035 | /* See symtab.h. */ |
c378eb4e | 5036 | |
5f512a7d AB |
5037 | std::string |
5038 | symbol_to_info_string (struct symbol *sym, int block, | |
5039 | enum search_domain kind) | |
c906108c | 5040 | { |
5f512a7d | 5041 | std::string str; |
05cba821 | 5042 | |
5f512a7d | 5043 | gdb_assert (block == GLOBAL_BLOCK || block == STATIC_BLOCK); |
b744723f | 5044 | |
176620f1 | 5045 | if (kind != TYPES_DOMAIN && block == STATIC_BLOCK) |
5f512a7d | 5046 | str += "static "; |
c5aa993b | 5047 | |
c378eb4e | 5048 | /* Typedef that is not a C++ class. */ |
176620f1 | 5049 | if (kind == TYPES_DOMAIN |
6c9c307c | 5050 | && sym->domain () != STRUCT_DOMAIN) |
eb86c5e2 | 5051 | { |
5f512a7d AB |
5052 | string_file tmp_stream; |
5053 | ||
eb86c5e2 AB |
5054 | /* FIXME: For C (and C++) we end up with a difference in output here |
5055 | between how a typedef is printed, and non-typedefs are printed. | |
5056 | The TYPEDEF_PRINT code places a ";" at the end in an attempt to | |
5057 | appear C-like, while TYPE_PRINT doesn't. | |
5058 | ||
5059 | For the struct printing case below, things are worse, we force | |
5060 | printing of the ";" in this function, which is going to be wrong | |
5061 | for languages that don't require a ";" between statements. */ | |
5f9c5a63 SM |
5062 | if (sym->type ()->code () == TYPE_CODE_TYPEDEF) |
5063 | typedef_print (sym->type (), sym, &tmp_stream); | |
eb86c5e2 | 5064 | else |
5f9c5a63 | 5065 | type_print (sym->type (), "", &tmp_stream, -1); |
5f512a7d | 5066 | str += tmp_stream.string (); |
eb86c5e2 | 5067 | } |
c378eb4e | 5068 | /* variable, func, or typedef-that-is-c++-class. */ |
d50bd42b DE |
5069 | else if (kind < TYPES_DOMAIN |
5070 | || (kind == TYPES_DOMAIN | |
6c9c307c | 5071 | && sym->domain () == STRUCT_DOMAIN)) |
c906108c | 5072 | { |
5f512a7d AB |
5073 | string_file tmp_stream; |
5074 | ||
5f9c5a63 | 5075 | type_print (sym->type (), |
66d7f48f | 5076 | (sym->aclass () == LOC_TYPEDEF |
987012b8 | 5077 | ? "" : sym->print_name ()), |
5f512a7d | 5078 | &tmp_stream, 0); |
c906108c | 5079 | |
5f512a7d AB |
5080 | str += tmp_stream.string (); |
5081 | str += ";"; | |
c906108c | 5082 | } |
59c35742 AB |
5083 | /* Printing of modules is currently done here, maybe at some future |
5084 | point we might want a language specific method to print the module | |
5085 | symbol so that we can customise the output more. */ | |
5086 | else if (kind == MODULES_DOMAIN) | |
5f512a7d AB |
5087 | str += sym->print_name (); |
5088 | ||
5089 | return str; | |
5090 | } | |
5091 | ||
5092 | /* Helper function for symbol info commands, for example 'info functions', | |
5093 | 'info variables', etc. KIND is the kind of symbol we searched for, and | |
5094 | BLOCK is the type of block the symbols was found in, either GLOBAL_BLOCK | |
5095 | or STATIC_BLOCK. SYM is the symbol we found. If LAST is not NULL, | |
5096 | print file and line number information for the symbol as well. Skip | |
5097 | printing the filename if it matches LAST. */ | |
5098 | ||
5099 | static void | |
5100 | print_symbol_info (enum search_domain kind, | |
5101 | struct symbol *sym, | |
5102 | int block, const char *last) | |
5103 | { | |
5104 | scoped_switch_to_sym_language_if_auto l (sym); | |
4206d69e | 5105 | struct symtab *s = sym->symtab (); |
5f512a7d AB |
5106 | |
5107 | if (last != NULL) | |
5108 | { | |
5109 | const char *s_filename = symtab_to_filename_for_display (s); | |
5110 | ||
5111 | if (filename_cmp (last, s_filename) != 0) | |
5112 | { | |
6cb06a8c TT |
5113 | gdb_printf (_("\nFile %ps:\n"), |
5114 | styled_string (file_name_style.style (), | |
5115 | s_filename)); | |
5f512a7d AB |
5116 | } |
5117 | ||
5d0027b9 | 5118 | if (sym->line () != 0) |
6cb06a8c | 5119 | gdb_printf ("%d:\t", sym->line ()); |
5f512a7d | 5120 | else |
0426ad51 | 5121 | gdb_puts ("\t"); |
5f512a7d AB |
5122 | } |
5123 | ||
5124 | std::string str = symbol_to_info_string (sym, block, kind); | |
6cb06a8c | 5125 | gdb_printf ("%s\n", str.c_str ()); |
c906108c SS |
5126 | } |
5127 | ||
5128 | /* This help function for symtab_symbol_info() prints information | |
c378eb4e MS |
5129 | for non-debugging symbols to gdb_stdout. */ |
5130 | ||
c906108c | 5131 | static void |
7c7b6655 | 5132 | print_msymbol_info (struct bound_minimal_symbol msymbol) |
c906108c | 5133 | { |
08feed99 | 5134 | struct gdbarch *gdbarch = msymbol.objfile->arch (); |
3ac4495a MS |
5135 | char *tmp; |
5136 | ||
d80b854b | 5137 | if (gdbarch_addr_bit (gdbarch) <= 32) |
4aeddc50 | 5138 | tmp = hex_string_custom (msymbol.value_address () |
bb599908 PH |
5139 | & (CORE_ADDR) 0xffffffff, |
5140 | 8); | |
3ac4495a | 5141 | else |
4aeddc50 | 5142 | tmp = hex_string_custom (msymbol.value_address (), |
bb599908 | 5143 | 16); |
6a831f06 PA |
5144 | |
5145 | ui_file_style sym_style = (msymbol.minsym->text_p () | |
5146 | ? function_name_style.style () | |
5147 | : ui_file_style ()); | |
5148 | ||
6cb06a8c TT |
5149 | gdb_printf (_("%ps %ps\n"), |
5150 | styled_string (address_style.style (), tmp), | |
5151 | styled_string (sym_style, msymbol.minsym->print_name ())); | |
c906108c SS |
5152 | } |
5153 | ||
5154 | /* This is the guts of the commands "info functions", "info types", and | |
c378eb4e | 5155 | "info variables". It calls search_symbols to find all matches and then |
c906108c | 5156 | print_[m]symbol_info to print out some useful information about the |
c378eb4e MS |
5157 | matches. */ |
5158 | ||
c906108c | 5159 | static void |
4acfdd20 | 5160 | symtab_symbol_info (bool quiet, bool exclude_minsyms, |
12615cba PW |
5161 | const char *regexp, enum search_domain kind, |
5162 | const char *t_regexp, int from_tty) | |
c906108c | 5163 | { |
bc043ef3 | 5164 | static const char * const classnames[] = |
59c35742 | 5165 | {"variable", "function", "type", "module"}; |
c7dcbf88 | 5166 | const char *last_filename = ""; |
c906108c SS |
5167 | int first = 1; |
5168 | ||
59c35742 | 5169 | gdb_assert (kind != ALL_DOMAIN); |
e8930875 | 5170 | |
b16507e0 AB |
5171 | if (regexp != nullptr && *regexp == '\0') |
5172 | regexp = nullptr; | |
5173 | ||
470c0b1c AB |
5174 | global_symbol_searcher spec (kind, regexp); |
5175 | spec.set_symbol_type_regexp (t_regexp); | |
5176 | spec.set_exclude_minsyms (exclude_minsyms); | |
5177 | std::vector<symbol_search> symbols = spec.search (); | |
c906108c | 5178 | |
12615cba PW |
5179 | if (!quiet) |
5180 | { | |
5181 | if (regexp != NULL) | |
5182 | { | |
5183 | if (t_regexp != NULL) | |
6cb06a8c | 5184 | gdb_printf |
12615cba | 5185 | (_("All %ss matching regular expression \"%s\"" |
0c95f9ed | 5186 | " with type matching regular expression \"%s\":\n"), |
12615cba PW |
5187 | classnames[kind], regexp, t_regexp); |
5188 | else | |
6cb06a8c TT |
5189 | gdb_printf (_("All %ss matching regular expression \"%s\":\n"), |
5190 | classnames[kind], regexp); | |
12615cba PW |
5191 | } |
5192 | else | |
5193 | { | |
5194 | if (t_regexp != NULL) | |
6cb06a8c | 5195 | gdb_printf |
12615cba | 5196 | (_("All defined %ss" |
0c95f9ed | 5197 | " with type matching regular expression \"%s\" :\n"), |
12615cba PW |
5198 | classnames[kind], t_regexp); |
5199 | else | |
6cb06a8c | 5200 | gdb_printf (_("All defined %ss:\n"), classnames[kind]); |
12615cba PW |
5201 | } |
5202 | } | |
c906108c | 5203 | |
b9c04fb2 | 5204 | for (const symbol_search &p : symbols) |
c906108c SS |
5205 | { |
5206 | QUIT; | |
5207 | ||
b9c04fb2 | 5208 | if (p.msymbol.minsym != NULL) |
c5aa993b JM |
5209 | { |
5210 | if (first) | |
5211 | { | |
12615cba | 5212 | if (!quiet) |
6cb06a8c | 5213 | gdb_printf (_("\nNon-debugging symbols:\n")); |
c5aa993b JM |
5214 | first = 0; |
5215 | } | |
b9c04fb2 | 5216 | print_msymbol_info (p.msymbol); |
c5aa993b | 5217 | } |
c906108c | 5218 | else |
c5aa993b JM |
5219 | { |
5220 | print_symbol_info (kind, | |
b9c04fb2 TT |
5221 | p.symbol, |
5222 | p.block, | |
c5aa993b | 5223 | last_filename); |
d01060f0 | 5224 | last_filename |
4206d69e | 5225 | = symtab_to_filename_for_display (p.symbol->symtab ()); |
c5aa993b | 5226 | } |
c906108c | 5227 | } |
c906108c SS |
5228 | } |
5229 | ||
4acfdd20 AB |
5230 | /* Structure to hold the values of the options used by the 'info variables' |
5231 | and 'info functions' commands. These correspond to the -q, -t, and -n | |
5232 | options. */ | |
5233 | ||
095252be | 5234 | struct info_vars_funcs_options |
4acfdd20 | 5235 | { |
491144b5 CB |
5236 | bool quiet = false; |
5237 | bool exclude_minsyms = false; | |
e0700ba4 | 5238 | std::string type_regexp; |
4acfdd20 AB |
5239 | }; |
5240 | ||
5241 | /* The options used by the 'info variables' and 'info functions' | |
5242 | commands. */ | |
5243 | ||
095252be AT |
5244 | static const gdb::option::option_def info_vars_funcs_options_defs[] = { |
5245 | gdb::option::boolean_option_def<info_vars_funcs_options> { | |
4acfdd20 | 5246 | "q", |
095252be | 5247 | [] (info_vars_funcs_options *opt) { return &opt->quiet; }, |
4acfdd20 AB |
5248 | nullptr, /* show_cmd_cb */ |
5249 | nullptr /* set_doc */ | |
5250 | }, | |
5251 | ||
095252be | 5252 | gdb::option::boolean_option_def<info_vars_funcs_options> { |
4acfdd20 | 5253 | "n", |
095252be | 5254 | [] (info_vars_funcs_options *opt) { return &opt->exclude_minsyms; }, |
4acfdd20 AB |
5255 | nullptr, /* show_cmd_cb */ |
5256 | nullptr /* set_doc */ | |
5257 | }, | |
5258 | ||
095252be | 5259 | gdb::option::string_option_def<info_vars_funcs_options> { |
4acfdd20 | 5260 | "t", |
e0700ba4 | 5261 | [] (info_vars_funcs_options *opt) { return &opt->type_regexp; }, |
4acfdd20 AB |
5262 | nullptr, /* show_cmd_cb */ |
5263 | nullptr /* set_doc */ | |
5264 | } | |
5265 | }; | |
5266 | ||
5267 | /* Returns the option group used by 'info variables' and 'info | |
5268 | functions'. */ | |
5269 | ||
5270 | static gdb::option::option_def_group | |
095252be | 5271 | make_info_vars_funcs_options_def_group (info_vars_funcs_options *opts) |
4acfdd20 | 5272 | { |
095252be | 5273 | return {{info_vars_funcs_options_defs}, opts}; |
4acfdd20 AB |
5274 | } |
5275 | ||
5276 | /* Command completer for 'info variables' and 'info functions'. */ | |
5277 | ||
5278 | static void | |
095252be AT |
5279 | info_vars_funcs_command_completer (struct cmd_list_element *ignore, |
5280 | completion_tracker &tracker, | |
5281 | const char *text, const char * /* word */) | |
4acfdd20 AB |
5282 | { |
5283 | const auto group | |
095252be | 5284 | = make_info_vars_funcs_options_def_group (nullptr); |
4acfdd20 AB |
5285 | if (gdb::option::complete_options |
5286 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
5287 | return; | |
5288 | ||
5289 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
5290 | symbol_completer (ignore, tracker, text, word); | |
5291 | } | |
5292 | ||
b16507e0 AB |
5293 | /* Implement the 'info variables' command. */ |
5294 | ||
0b39b52e | 5295 | static void |
12615cba | 5296 | info_variables_command (const char *args, int from_tty) |
0b39b52e | 5297 | { |
095252be AT |
5298 | info_vars_funcs_options opts; |
5299 | auto grp = make_info_vars_funcs_options_def_group (&opts); | |
4acfdd20 AB |
5300 | gdb::option::process_options |
5301 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5302 | if (args != nullptr && *args == '\0') | |
5303 | args = nullptr; | |
b16507e0 | 5304 | |
e0700ba4 SM |
5305 | symtab_symbol_info |
5306 | (opts.quiet, opts.exclude_minsyms, args, VARIABLES_DOMAIN, | |
5307 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
5308 | from_tty); | |
0b39b52e TT |
5309 | } |
5310 | ||
b16507e0 | 5311 | /* Implement the 'info functions' command. */ |
12615cba | 5312 | |
c906108c | 5313 | static void |
12615cba | 5314 | info_functions_command (const char *args, int from_tty) |
c906108c | 5315 | { |
095252be AT |
5316 | info_vars_funcs_options opts; |
5317 | ||
5318 | auto grp = make_info_vars_funcs_options_def_group (&opts); | |
4acfdd20 AB |
5319 | gdb::option::process_options |
5320 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5321 | if (args != nullptr && *args == '\0') | |
5322 | args = nullptr; | |
b16507e0 | 5323 | |
e0700ba4 SM |
5324 | symtab_symbol_info |
5325 | (opts.quiet, opts.exclude_minsyms, args, FUNCTIONS_DOMAIN, | |
5326 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
5327 | from_tty); | |
c906108c SS |
5328 | } |
5329 | ||
a8eab7c6 AB |
5330 | /* Holds the -q option for the 'info types' command. */ |
5331 | ||
5332 | struct info_types_options | |
5333 | { | |
491144b5 | 5334 | bool quiet = false; |
a8eab7c6 AB |
5335 | }; |
5336 | ||
5337 | /* The options used by the 'info types' command. */ | |
5338 | ||
5339 | static const gdb::option::option_def info_types_options_defs[] = { | |
5340 | gdb::option::boolean_option_def<info_types_options> { | |
5341 | "q", | |
5342 | [] (info_types_options *opt) { return &opt->quiet; }, | |
5343 | nullptr, /* show_cmd_cb */ | |
5344 | nullptr /* set_doc */ | |
5345 | } | |
5346 | }; | |
5347 | ||
5348 | /* Returns the option group used by 'info types'. */ | |
5349 | ||
5350 | static gdb::option::option_def_group | |
5351 | make_info_types_options_def_group (info_types_options *opts) | |
5352 | { | |
5353 | return {{info_types_options_defs}, opts}; | |
5354 | } | |
5355 | ||
5356 | /* Implement the 'info types' command. */ | |
357e46e7 | 5357 | |
c906108c | 5358 | static void |
a8eab7c6 | 5359 | info_types_command (const char *args, int from_tty) |
c906108c | 5360 | { |
a8eab7c6 AB |
5361 | info_types_options opts; |
5362 | ||
5363 | auto grp = make_info_types_options_def_group (&opts); | |
5364 | gdb::option::process_options | |
5365 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5366 | if (args != nullptr && *args == '\0') | |
5367 | args = nullptr; | |
4acfdd20 | 5368 | symtab_symbol_info (opts.quiet, false, args, TYPES_DOMAIN, NULL, from_tty); |
a8eab7c6 AB |
5369 | } |
5370 | ||
5371 | /* Command completer for 'info types' command. */ | |
5372 | ||
5373 | static void | |
5374 | info_types_command_completer (struct cmd_list_element *ignore, | |
5375 | completion_tracker &tracker, | |
5376 | const char *text, const char * /* word */) | |
5377 | { | |
5378 | const auto group | |
5379 | = make_info_types_options_def_group (nullptr); | |
5380 | if (gdb::option::complete_options | |
5381 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
5382 | return; | |
5383 | ||
5384 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
5385 | symbol_completer (ignore, tracker, text, word); | |
c906108c SS |
5386 | } |
5387 | ||
59c35742 AB |
5388 | /* Implement the 'info modules' command. */ |
5389 | ||
5390 | static void | |
5391 | info_modules_command (const char *args, int from_tty) | |
5392 | { | |
5393 | info_types_options opts; | |
5394 | ||
5395 | auto grp = make_info_types_options_def_group (&opts); | |
5396 | gdb::option::process_options | |
5397 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5398 | if (args != nullptr && *args == '\0') | |
5399 | args = nullptr; | |
5400 | symtab_symbol_info (opts.quiet, true, args, MODULES_DOMAIN, NULL, | |
5401 | from_tty); | |
5402 | } | |
5403 | ||
c906108c | 5404 | static void |
0b39b52e | 5405 | rbreak_command (const char *regexp, int from_tty) |
c906108c | 5406 | { |
c80049d3 | 5407 | std::string string; |
470c0b1c | 5408 | const char *file_name = nullptr; |
c906108c | 5409 | |
470c0b1c | 5410 | if (regexp != nullptr) |
8bd10a10 | 5411 | { |
0b39b52e | 5412 | const char *colon = strchr (regexp, ':'); |
433759f7 | 5413 | |
2c074f49 HD |
5414 | /* Ignore the colon if it is part of a Windows drive. */ |
5415 | if (HAS_DRIVE_SPEC (regexp) | |
5416 | && (regexp[2] == '/' || regexp[2] == '\\')) | |
5417 | colon = strchr (STRIP_DRIVE_SPEC (regexp), ':'); | |
5418 | ||
8bd10a10 CM |
5419 | if (colon && *(colon + 1) != ':') |
5420 | { | |
5421 | int colon_index; | |
96142726 | 5422 | char *local_name; |
8bd10a10 CM |
5423 | |
5424 | colon_index = colon - regexp; | |
224c3ddb | 5425 | local_name = (char *) alloca (colon_index + 1); |
96142726 TT |
5426 | memcpy (local_name, regexp, colon_index); |
5427 | local_name[colon_index--] = 0; | |
5428 | while (isspace (local_name[colon_index])) | |
5429 | local_name[colon_index--] = 0; | |
5430 | file_name = local_name; | |
529480d0 | 5431 | regexp = skip_spaces (colon + 1); |
8bd10a10 CM |
5432 | } |
5433 | } | |
5434 | ||
470c0b1c AB |
5435 | global_symbol_searcher spec (FUNCTIONS_DOMAIN, regexp); |
5436 | if (file_name != nullptr) | |
5437 | spec.filenames.push_back (file_name); | |
5438 | std::vector<symbol_search> symbols = spec.search (); | |
c906108c | 5439 | |
c80049d3 | 5440 | scoped_rbreak_breakpoints finalize; |
b9c04fb2 | 5441 | for (const symbol_search &p : symbols) |
c906108c | 5442 | { |
b9c04fb2 | 5443 | if (p.msymbol.minsym == NULL) |
c5aa993b | 5444 | { |
4206d69e | 5445 | struct symtab *symtab = p.symbol->symtab (); |
d01060f0 | 5446 | const char *fullname = symtab_to_fullname (symtab); |
05cba821 | 5447 | |
c80049d3 | 5448 | string = string_printf ("%s:'%s'", fullname, |
987012b8 | 5449 | p.symbol->linkage_name ()); |
c80049d3 | 5450 | break_command (&string[0], from_tty); |
c7dcbf88 | 5451 | print_symbol_info (FUNCTIONS_DOMAIN, p.symbol, p.block, NULL); |
c5aa993b | 5452 | } |
c906108c | 5453 | else |
c5aa993b | 5454 | { |
c80049d3 | 5455 | string = string_printf ("'%s'", |
c9d95fa3 | 5456 | p.msymbol.minsym->linkage_name ()); |
6214f497 | 5457 | |
c80049d3 | 5458 | break_command (&string[0], from_tty); |
6cb06a8c TT |
5459 | gdb_printf ("<function, no debug info> %s;\n", |
5460 | p.msymbol.minsym->print_name ()); | |
c5aa993b | 5461 | } |
c906108c | 5462 | } |
c906108c | 5463 | } |
c906108c | 5464 | \f |
c5aa993b | 5465 | |
c62446b1 | 5466 | /* Evaluate if SYMNAME matches LOOKUP_NAME. */ |
1976171a JK |
5467 | |
5468 | static int | |
c62446b1 | 5469 | compare_symbol_name (const char *symbol_name, language symbol_language, |
b5ec771e | 5470 | const lookup_name_info &lookup_name, |
b5ec771e PA |
5471 | completion_match_result &match_res) |
5472 | { | |
d4c2a405 | 5473 | const language_defn *lang = language_def (symbol_language); |
1976171a | 5474 | |
b5ec771e | 5475 | symbol_name_matcher_ftype *name_match |
c9debfb9 | 5476 | = lang->get_symbol_name_matcher (lookup_name); |
1976171a | 5477 | |
a207cff2 | 5478 | return name_match (symbol_name, lookup_name, &match_res); |
1976171a JK |
5479 | } |
5480 | ||
b5ec771e | 5481 | /* See symtab.h. */ |
c906108c | 5482 | |
e08bd6c5 | 5483 | bool |
eb3ff9a5 | 5484 | completion_list_add_name (completion_tracker &tracker, |
b5ec771e | 5485 | language symbol_language, |
eb3ff9a5 | 5486 | const char *symname, |
b5ec771e | 5487 | const lookup_name_info &lookup_name, |
0d5cff50 | 5488 | const char *text, const char *word) |
c906108c | 5489 | { |
b5ec771e PA |
5490 | completion_match_result &match_res |
5491 | = tracker.reset_completion_match_result (); | |
5492 | ||
c378eb4e | 5493 | /* Clip symbols that cannot match. */ |
c62446b1 | 5494 | if (!compare_symbol_name (symname, symbol_language, lookup_name, match_res)) |
e08bd6c5 | 5495 | return false; |
c906108c | 5496 | |
b5ec771e PA |
5497 | /* Refresh SYMNAME from the match string. It's potentially |
5498 | different depending on language. (E.g., on Ada, the match may be | |
5499 | the encoded symbol name wrapped in "<>"). */ | |
5500 | symname = match_res.match.match (); | |
5501 | gdb_assert (symname != NULL); | |
5502 | ||
c906108c | 5503 | /* We have a match for a completion, so add SYMNAME to the current list |
c378eb4e | 5504 | of matches. Note that the name is moved to freshly malloc'd space. */ |
c906108c SS |
5505 | |
5506 | { | |
60a20c19 PA |
5507 | gdb::unique_xmalloc_ptr<char> completion |
5508 | = make_completion_match_str (symname, text, word); | |
ef0b411a | 5509 | |
a207cff2 PA |
5510 | /* Here we pass the match-for-lcd object to add_completion. Some |
5511 | languages match the user text against substrings of symbol | |
5512 | names in some cases. E.g., in C++, "b push_ba" completes to | |
5513 | "std::vector::push_back", "std::string::push_back", etc., and | |
5514 | in this case we want the completion lowest common denominator | |
5515 | to be "push_back" instead of "std::". */ | |
5516 | tracker.add_completion (std::move (completion), | |
a22ecf70 | 5517 | &match_res.match_for_lcd, text, word); |
c906108c | 5518 | } |
e08bd6c5 PA |
5519 | |
5520 | return true; | |
c906108c SS |
5521 | } |
5522 | ||
6da67eb1 PA |
5523 | /* completion_list_add_name wrapper for struct symbol. */ |
5524 | ||
5525 | static void | |
eb3ff9a5 PA |
5526 | completion_list_add_symbol (completion_tracker &tracker, |
5527 | symbol *sym, | |
b5ec771e | 5528 | const lookup_name_info &lookup_name, |
6da67eb1 PA |
5529 | const char *text, const char *word) |
5530 | { | |
e08bd6c5 PA |
5531 | if (!completion_list_add_name (tracker, sym->language (), |
5532 | sym->natural_name (), | |
5533 | lookup_name, text, word)) | |
5534 | return; | |
19a2740f AB |
5535 | |
5536 | /* C++ function symbols include the parameters within both the msymbol | |
5537 | name and the symbol name. The problem is that the msymbol name will | |
5538 | describe the parameters in the most basic way, with typedefs stripped | |
5539 | out, while the symbol name will represent the types as they appear in | |
5540 | the program. This means we will see duplicate entries in the | |
5541 | completion tracker. The following converts the symbol name back to | |
5542 | the msymbol name and removes the msymbol name from the completion | |
5543 | tracker. */ | |
5544 | if (sym->language () == language_cplus | |
6c9c307c | 5545 | && sym->domain () == VAR_DOMAIN |
66d7f48f | 5546 | && sym->aclass () == LOC_BLOCK) |
19a2740f AB |
5547 | { |
5548 | /* The call to canonicalize returns the empty string if the input | |
5549 | string is already in canonical form, thanks to this we don't | |
5550 | remove the symbol we just added above. */ | |
596dc4ad | 5551 | gdb::unique_xmalloc_ptr<char> str |
19a2740f | 5552 | = cp_canonicalize_string_no_typedefs (sym->natural_name ()); |
596dc4ad TT |
5553 | if (str != nullptr) |
5554 | tracker.remove_completion (str.get ()); | |
19a2740f | 5555 | } |
6da67eb1 PA |
5556 | } |
5557 | ||
5558 | /* completion_list_add_name wrapper for struct minimal_symbol. */ | |
5559 | ||
5560 | static void | |
eb3ff9a5 PA |
5561 | completion_list_add_msymbol (completion_tracker &tracker, |
5562 | minimal_symbol *sym, | |
b5ec771e | 5563 | const lookup_name_info &lookup_name, |
6da67eb1 PA |
5564 | const char *text, const char *word) |
5565 | { | |
c1b5c1eb | 5566 | completion_list_add_name (tracker, sym->language (), |
c9d95fa3 | 5567 | sym->natural_name (), |
1b026119 | 5568 | lookup_name, text, word); |
6da67eb1 PA |
5569 | } |
5570 | ||
b5ec771e | 5571 | |
69636828 AF |
5572 | /* ObjC: In case we are completing on a selector, look as the msymbol |
5573 | again and feed all the selectors into the mill. */ | |
5574 | ||
5575 | static void | |
eb3ff9a5 PA |
5576 | completion_list_objc_symbol (completion_tracker &tracker, |
5577 | struct minimal_symbol *msymbol, | |
b5ec771e | 5578 | const lookup_name_info &lookup_name, |
0d5cff50 | 5579 | const char *text, const char *word) |
69636828 AF |
5580 | { |
5581 | static char *tmp = NULL; | |
5582 | static unsigned int tmplen = 0; | |
9af17804 | 5583 | |
0d5cff50 | 5584 | const char *method, *category, *selector; |
69636828 | 5585 | char *tmp2 = NULL; |
9af17804 | 5586 | |
c9d95fa3 | 5587 | method = msymbol->natural_name (); |
69636828 AF |
5588 | |
5589 | /* Is it a method? */ | |
5590 | if ((method[0] != '-') && (method[0] != '+')) | |
5591 | return; | |
5592 | ||
1b026119 | 5593 | if (text[0] == '[') |
69636828 | 5594 | /* Complete on shortened method method. */ |
b5ec771e PA |
5595 | completion_list_add_name (tracker, language_objc, |
5596 | method + 1, | |
5597 | lookup_name, | |
1b026119 | 5598 | text, word); |
9af17804 | 5599 | |
69636828 AF |
5600 | while ((strlen (method) + 1) >= tmplen) |
5601 | { | |
5602 | if (tmplen == 0) | |
5603 | tmplen = 1024; | |
5604 | else | |
5605 | tmplen *= 2; | |
224c3ddb | 5606 | tmp = (char *) xrealloc (tmp, tmplen); |
69636828 AF |
5607 | } |
5608 | selector = strchr (method, ' '); | |
5609 | if (selector != NULL) | |
5610 | selector++; | |
9af17804 | 5611 | |
69636828 | 5612 | category = strchr (method, '('); |
9af17804 | 5613 | |
69636828 AF |
5614 | if ((category != NULL) && (selector != NULL)) |
5615 | { | |
5616 | memcpy (tmp, method, (category - method)); | |
5617 | tmp[category - method] = ' '; | |
5618 | memcpy (tmp + (category - method) + 1, selector, strlen (selector) + 1); | |
b5ec771e | 5619 | completion_list_add_name (tracker, language_objc, tmp, |
1b026119 PA |
5620 | lookup_name, text, word); |
5621 | if (text[0] == '[') | |
b5ec771e | 5622 | completion_list_add_name (tracker, language_objc, tmp + 1, |
1b026119 | 5623 | lookup_name, text, word); |
69636828 | 5624 | } |
9af17804 | 5625 | |
69636828 AF |
5626 | if (selector != NULL) |
5627 | { | |
5628 | /* Complete on selector only. */ | |
5629 | strcpy (tmp, selector); | |
5630 | tmp2 = strchr (tmp, ']'); | |
5631 | if (tmp2 != NULL) | |
5632 | *tmp2 = '\0'; | |
9af17804 | 5633 | |
b5ec771e | 5634 | completion_list_add_name (tracker, language_objc, tmp, |
1b026119 | 5635 | lookup_name, text, word); |
69636828 AF |
5636 | } |
5637 | } | |
5638 | ||
5639 | /* Break the non-quoted text based on the characters which are in | |
c378eb4e | 5640 | symbols. FIXME: This should probably be language-specific. */ |
69636828 | 5641 | |
6f937416 PA |
5642 | static const char * |
5643 | language_search_unquoted_string (const char *text, const char *p) | |
69636828 AF |
5644 | { |
5645 | for (; p > text; --p) | |
5646 | { | |
5647 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0') | |
5648 | continue; | |
5649 | else | |
5650 | { | |
5651 | if ((current_language->la_language == language_objc)) | |
5652 | { | |
c378eb4e | 5653 | if (p[-1] == ':') /* Might be part of a method name. */ |
69636828 AF |
5654 | continue; |
5655 | else if (p[-1] == '[' && (p[-2] == '-' || p[-2] == '+')) | |
c378eb4e | 5656 | p -= 2; /* Beginning of a method name. */ |
69636828 | 5657 | else if (p[-1] == ' ' || p[-1] == '(' || p[-1] == ')') |
c378eb4e | 5658 | { /* Might be part of a method name. */ |
6f937416 | 5659 | const char *t = p; |
69636828 AF |
5660 | |
5661 | /* Seeing a ' ' or a '(' is not conclusive evidence | |
5662 | that we are in the middle of a method name. However, | |
5663 | finding "-[" or "+[" should be pretty un-ambiguous. | |
5664 | Unfortunately we have to find it now to decide. */ | |
5665 | ||
5666 | while (t > text) | |
5667 | if (isalnum (t[-1]) || t[-1] == '_' || | |
5668 | t[-1] == ' ' || t[-1] == ':' || | |
5669 | t[-1] == '(' || t[-1] == ')') | |
5670 | --t; | |
5671 | else | |
5672 | break; | |
5673 | ||
5674 | if (t[-1] == '[' && (t[-2] == '-' || t[-2] == '+')) | |
c378eb4e MS |
5675 | p = t - 2; /* Method name detected. */ |
5676 | /* Else we leave with p unchanged. */ | |
69636828 AF |
5677 | } |
5678 | } | |
5679 | break; | |
5680 | } | |
5681 | } | |
5682 | return p; | |
5683 | } | |
5684 | ||
edb3359d | 5685 | static void |
eb3ff9a5 PA |
5686 | completion_list_add_fields (completion_tracker &tracker, |
5687 | struct symbol *sym, | |
b5ec771e | 5688 | const lookup_name_info &lookup_name, |
eb3ff9a5 | 5689 | const char *text, const char *word) |
edb3359d | 5690 | { |
66d7f48f | 5691 | if (sym->aclass () == LOC_TYPEDEF) |
edb3359d | 5692 | { |
5f9c5a63 | 5693 | struct type *t = sym->type (); |
78134374 | 5694 | enum type_code c = t->code (); |
edb3359d DJ |
5695 | int j; |
5696 | ||
5697 | if (c == TYPE_CODE_UNION || c == TYPE_CODE_STRUCT) | |
1f704f76 | 5698 | for (j = TYPE_N_BASECLASSES (t); j < t->num_fields (); j++) |
33d16dd9 | 5699 | if (t->field (j).name ()) |
c1b5c1eb | 5700 | completion_list_add_name (tracker, sym->language (), |
33d16dd9 | 5701 | t->field (j).name (), |
1b026119 | 5702 | lookup_name, text, word); |
edb3359d DJ |
5703 | } |
5704 | } | |
5705 | ||
f9d67a22 PA |
5706 | /* See symtab.h. */ |
5707 | ||
5708 | bool | |
5709 | symbol_is_function_or_method (symbol *sym) | |
5710 | { | |
5f9c5a63 | 5711 | switch (sym->type ()->code ()) |
f9d67a22 PA |
5712 | { |
5713 | case TYPE_CODE_FUNC: | |
5714 | case TYPE_CODE_METHOD: | |
5715 | return true; | |
5716 | default: | |
5717 | return false; | |
5718 | } | |
5719 | } | |
5720 | ||
5721 | /* See symtab.h. */ | |
5722 | ||
5723 | bool | |
5724 | symbol_is_function_or_method (minimal_symbol *msymbol) | |
5725 | { | |
60f62e2b | 5726 | switch (msymbol->type ()) |
f9d67a22 PA |
5727 | { |
5728 | case mst_text: | |
5729 | case mst_text_gnu_ifunc: | |
5730 | case mst_solib_trampoline: | |
5731 | case mst_file_text: | |
5732 | return true; | |
5733 | default: | |
5734 | return false; | |
5735 | } | |
5736 | } | |
5737 | ||
ca31ab1d PA |
5738 | /* See symtab.h. */ |
5739 | ||
5740 | bound_minimal_symbol | |
5741 | find_gnu_ifunc (const symbol *sym) | |
5742 | { | |
66d7f48f | 5743 | if (sym->aclass () != LOC_BLOCK) |
ca31ab1d PA |
5744 | return {}; |
5745 | ||
987012b8 | 5746 | lookup_name_info lookup_name (sym->search_name (), |
ca31ab1d | 5747 | symbol_name_match_type::SEARCH_NAME); |
e19b2d94 | 5748 | struct objfile *objfile = sym->objfile (); |
ca31ab1d | 5749 | |
6395b628 | 5750 | CORE_ADDR address = sym->value_block ()->entry_pc (); |
ca31ab1d PA |
5751 | minimal_symbol *ifunc = NULL; |
5752 | ||
5753 | iterate_over_minimal_symbols (objfile, lookup_name, | |
5754 | [&] (minimal_symbol *minsym) | |
5755 | { | |
60f62e2b SM |
5756 | if (minsym->type () == mst_text_gnu_ifunc |
5757 | || minsym->type () == mst_data_gnu_ifunc) | |
ca31ab1d | 5758 | { |
4aeddc50 | 5759 | CORE_ADDR msym_addr = minsym->value_address (objfile); |
60f62e2b | 5760 | if (minsym->type () == mst_data_gnu_ifunc) |
f50776aa | 5761 | { |
08feed99 | 5762 | struct gdbarch *gdbarch = objfile->arch (); |
328d42d8 SM |
5763 | msym_addr = gdbarch_convert_from_func_ptr_addr |
5764 | (gdbarch, msym_addr, current_inferior ()->top_target ()); | |
f50776aa PA |
5765 | } |
5766 | if (msym_addr == address) | |
5767 | { | |
5768 | ifunc = minsym; | |
5769 | return true; | |
5770 | } | |
ca31ab1d PA |
5771 | } |
5772 | return false; | |
5773 | }); | |
5774 | ||
5775 | if (ifunc != NULL) | |
5776 | return {ifunc, objfile}; | |
5777 | return {}; | |
5778 | } | |
5779 | ||
e11c72c7 GB |
5780 | /* Add matching symbols from SYMTAB to the current completion list. */ |
5781 | ||
5782 | static void | |
5783 | add_symtab_completions (struct compunit_symtab *cust, | |
eb3ff9a5 | 5784 | completion_tracker &tracker, |
f9d67a22 | 5785 | complete_symbol_mode mode, |
b5ec771e | 5786 | const lookup_name_info &lookup_name, |
e11c72c7 GB |
5787 | const char *text, const char *word, |
5788 | enum type_code code) | |
5789 | { | |
5790 | struct symbol *sym; | |
e11c72c7 GB |
5791 | struct block_iterator iter; |
5792 | int i; | |
5793 | ||
ff6fa247 GB |
5794 | if (cust == NULL) |
5795 | return; | |
5796 | ||
e11c72c7 GB |
5797 | for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++) |
5798 | { | |
5799 | QUIT; | |
63d609de SM |
5800 | |
5801 | const struct block *b = cust->blockvector ()->block (i); | |
e11c72c7 GB |
5802 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
5803 | { | |
f9d67a22 PA |
5804 | if (completion_skip_symbol (mode, sym)) |
5805 | continue; | |
5806 | ||
e11c72c7 | 5807 | if (code == TYPE_CODE_UNDEF |
6c9c307c | 5808 | || (sym->domain () == STRUCT_DOMAIN |
5f9c5a63 | 5809 | && sym->type ()->code () == code)) |
eb3ff9a5 | 5810 | completion_list_add_symbol (tracker, sym, |
b5ec771e | 5811 | lookup_name, |
e11c72c7 GB |
5812 | text, word); |
5813 | } | |
5814 | } | |
5815 | } | |
5816 | ||
eb3ff9a5 PA |
5817 | void |
5818 | default_collect_symbol_completion_matches_break_on | |
b5ec771e PA |
5819 | (completion_tracker &tracker, complete_symbol_mode mode, |
5820 | symbol_name_match_type name_match_type, | |
eb3ff9a5 PA |
5821 | const char *text, const char *word, |
5822 | const char *break_on, enum type_code code) | |
c906108c | 5823 | { |
41d27058 JB |
5824 | /* Problem: All of the symbols have to be copied because readline |
5825 | frees them. I'm not going to worry about this; hopefully there | |
5826 | won't be that many. */ | |
5827 | ||
de4f826b | 5828 | struct symbol *sym; |
3977b71f | 5829 | const struct block *b; |
edb3359d | 5830 | const struct block *surrounding_static_block, *surrounding_global_block; |
8157b174 | 5831 | struct block_iterator iter; |
c906108c | 5832 | /* The symbol we are completing on. Points in same buffer as text. */ |
6f937416 | 5833 | const char *sym_text; |
c906108c | 5834 | |
41d27058 | 5835 | /* Now look for the symbol we are supposed to complete on. */ |
c6756f62 PA |
5836 | if (mode == complete_symbol_mode::LINESPEC) |
5837 | sym_text = text; | |
5838 | else | |
01add95b SM |
5839 | { |
5840 | const char *p; | |
5841 | char quote_found; | |
5842 | const char *quote_pos = NULL; | |
c906108c | 5843 | |
01add95b SM |
5844 | /* First see if this is a quoted string. */ |
5845 | quote_found = '\0'; | |
5846 | for (p = text; *p != '\0'; ++p) | |
5847 | { | |
5848 | if (quote_found != '\0') | |
5849 | { | |
5850 | if (*p == quote_found) | |
5851 | /* Found close quote. */ | |
5852 | quote_found = '\0'; | |
5853 | else if (*p == '\\' && p[1] == quote_found) | |
5854 | /* A backslash followed by the quote character | |
5855 | doesn't end the string. */ | |
5856 | ++p; | |
5857 | } | |
5858 | else if (*p == '\'' || *p == '"') | |
5859 | { | |
5860 | quote_found = *p; | |
5861 | quote_pos = p; | |
5862 | } | |
5863 | } | |
5864 | if (quote_found == '\'') | |
5865 | /* A string within single quotes can be a symbol, so complete on it. */ | |
5866 | sym_text = quote_pos + 1; | |
5867 | else if (quote_found == '"') | |
5868 | /* A double-quoted string is never a symbol, nor does it make sense | |
5869 | to complete it any other way. */ | |
5870 | { | |
5871 | return; | |
5872 | } | |
5873 | else | |
5874 | { | |
5875 | /* It is not a quoted string. Break it based on the characters | |
5876 | which are in symbols. */ | |
5877 | while (p > text) | |
5878 | { | |
5879 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0' | |
5880 | || p[-1] == ':' || strchr (break_on, p[-1]) != NULL) | |
5881 | --p; | |
5882 | else | |
5883 | break; | |
5884 | } | |
5885 | sym_text = p; | |
5886 | } | |
5887 | } | |
c906108c | 5888 | |
1b026119 | 5889 | lookup_name_info lookup_name (sym_text, name_match_type, true); |
b5ec771e | 5890 | |
c906108c SS |
5891 | /* At this point scan through the misc symbol vectors and add each |
5892 | symbol you find to the list. Eventually we want to ignore | |
5893 | anything that isn't a text symbol (everything else will be | |
e11c72c7 | 5894 | handled by the psymtab code below). */ |
c906108c | 5895 | |
2f68a895 TT |
5896 | if (code == TYPE_CODE_UNDEF) |
5897 | { | |
2030c079 | 5898 | for (objfile *objfile : current_program_space->objfiles ()) |
2f68a895 | 5899 | { |
7932255d | 5900 | for (minimal_symbol *msymbol : objfile->msymbols ()) |
5325b9bf TT |
5901 | { |
5902 | QUIT; | |
9af17804 | 5903 | |
5325b9bf TT |
5904 | if (completion_skip_symbol (mode, msymbol)) |
5905 | continue; | |
f9d67a22 | 5906 | |
5325b9bf TT |
5907 | completion_list_add_msymbol (tracker, msymbol, lookup_name, |
5908 | sym_text, word); | |
eb3ff9a5 | 5909 | |
5325b9bf TT |
5910 | completion_list_objc_symbol (tracker, msymbol, lookup_name, |
5911 | sym_text, word); | |
5912 | } | |
2f68a895 TT |
5913 | } |
5914 | } | |
c906108c | 5915 | |
e11c72c7 | 5916 | /* Add completions for all currently loaded symbol tables. */ |
2030c079 | 5917 | for (objfile *objfile : current_program_space->objfiles ()) |
d8aeb77f | 5918 | { |
b669c953 | 5919 | for (compunit_symtab *cust : objfile->compunits ()) |
d8aeb77f TT |
5920 | add_symtab_completions (cust, tracker, mode, lookup_name, |
5921 | sym_text, word, code); | |
5922 | } | |
e11c72c7 | 5923 | |
14bc53a8 PA |
5924 | /* Look through the partial symtabs for all symbols which begin by |
5925 | matching SYM_TEXT. Expand all CUs that you find to the list. */ | |
5926 | expand_symtabs_matching (NULL, | |
b5ec771e PA |
5927 | lookup_name, |
5928 | NULL, | |
14bc53a8 PA |
5929 | [&] (compunit_symtab *symtab) /* expansion notify */ |
5930 | { | |
5931 | add_symtab_completions (symtab, | |
f9d67a22 | 5932 | tracker, mode, lookup_name, |
1b026119 | 5933 | sym_text, word, code); |
df35e626 | 5934 | return true; |
14bc53a8 | 5935 | }, |
03a8ea51 | 5936 | SEARCH_GLOBAL_BLOCK | SEARCH_STATIC_BLOCK, |
14bc53a8 | 5937 | ALL_DOMAIN); |
e11c72c7 | 5938 | |
c906108c | 5939 | /* Search upwards from currently selected frame (so that we can |
edb3359d DJ |
5940 | complete on local vars). Also catch fields of types defined in |
5941 | this places which match our text string. Only complete on types | |
c378eb4e | 5942 | visible from current context. */ |
edb3359d DJ |
5943 | |
5944 | b = get_selected_block (0); | |
5945 | surrounding_static_block = block_static_block (b); | |
5946 | surrounding_global_block = block_global_block (b); | |
5947 | if (surrounding_static_block != NULL) | |
5948 | while (b != surrounding_static_block) | |
5949 | { | |
5950 | QUIT; | |
c906108c | 5951 | |
edb3359d DJ |
5952 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
5953 | { | |
2f68a895 TT |
5954 | if (code == TYPE_CODE_UNDEF) |
5955 | { | |
b5ec771e | 5956 | completion_list_add_symbol (tracker, sym, lookup_name, |
1b026119 | 5957 | sym_text, word); |
b5ec771e | 5958 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 5959 | sym_text, word); |
2f68a895 | 5960 | } |
6c9c307c | 5961 | else if (sym->domain () == STRUCT_DOMAIN |
5f9c5a63 | 5962 | && sym->type ()->code () == code) |
b5ec771e | 5963 | completion_list_add_symbol (tracker, sym, lookup_name, |
1b026119 | 5964 | sym_text, word); |
edb3359d | 5965 | } |
c5aa993b | 5966 | |
edb3359d DJ |
5967 | /* Stop when we encounter an enclosing function. Do not stop for |
5968 | non-inlined functions - the locals of the enclosing function | |
5969 | are in scope for a nested function. */ | |
6c00f721 | 5970 | if (b->function () != NULL && block_inlined_p (b)) |
edb3359d | 5971 | break; |
f135fe72 | 5972 | b = b->superblock (); |
edb3359d | 5973 | } |
c906108c | 5974 | |
edb3359d | 5975 | /* Add fields from the file's types; symbols will be added below. */ |
c906108c | 5976 | |
2f68a895 TT |
5977 | if (code == TYPE_CODE_UNDEF) |
5978 | { | |
5979 | if (surrounding_static_block != NULL) | |
5980 | ALL_BLOCK_SYMBOLS (surrounding_static_block, iter, sym) | |
b5ec771e | 5981 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 5982 | sym_text, word); |
edb3359d | 5983 | |
2f68a895 TT |
5984 | if (surrounding_global_block != NULL) |
5985 | ALL_BLOCK_SYMBOLS (surrounding_global_block, iter, sym) | |
b5ec771e | 5986 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 5987 | sym_text, word); |
2f68a895 | 5988 | } |
c906108c | 5989 | |
2f68a895 TT |
5990 | /* Skip macros if we are completing a struct tag -- arguable but |
5991 | usually what is expected. */ | |
1ac14a04 | 5992 | if (current_language->macro_expansion () == macro_expansion_c |
2f68a895 | 5993 | && code == TYPE_CODE_UNDEF) |
9a044a89 | 5994 | { |
f6c2623e | 5995 | gdb::unique_xmalloc_ptr<struct macro_scope> scope; |
9a044a89 | 5996 | |
14bc53a8 PA |
5997 | /* This adds a macro's name to the current completion list. */ |
5998 | auto add_macro_name = [&] (const char *macro_name, | |
5999 | const macro_definition *, | |
6000 | macro_source_file *, | |
6001 | int) | |
6002 | { | |
1b026119 PA |
6003 | completion_list_add_name (tracker, language_c, macro_name, |
6004 | lookup_name, sym_text, word); | |
14bc53a8 PA |
6005 | }; |
6006 | ||
9a044a89 TT |
6007 | /* Add any macros visible in the default scope. Note that this |
6008 | may yield the occasional wrong result, because an expression | |
6009 | might be evaluated in a scope other than the default. For | |
6010 | example, if the user types "break file:line if <TAB>", the | |
6011 | resulting expression will be evaluated at "file:line" -- but | |
6012 | at there does not seem to be a way to detect this at | |
6013 | completion time. */ | |
6014 | scope = default_macro_scope (); | |
6015 | if (scope) | |
f6c2623e TT |
6016 | macro_for_each_in_scope (scope->file, scope->line, |
6017 | add_macro_name); | |
9a044a89 TT |
6018 | |
6019 | /* User-defined macros are always visible. */ | |
14bc53a8 | 6020 | macro_for_each (macro_user_macros, add_macro_name); |
9a044a89 | 6021 | } |
ef0b411a GB |
6022 | } |
6023 | ||
eb3ff9a5 PA |
6024 | /* Collect all symbols (regardless of class) which begin by matching |
6025 | TEXT. */ | |
41d27058 | 6026 | |
eb3ff9a5 PA |
6027 | void |
6028 | collect_symbol_completion_matches (completion_tracker &tracker, | |
c6756f62 | 6029 | complete_symbol_mode mode, |
b5ec771e | 6030 | symbol_name_match_type name_match_type, |
eb3ff9a5 | 6031 | const char *text, const char *word) |
41d27058 | 6032 | { |
7e56227d AB |
6033 | current_language->collect_symbol_completion_matches (tracker, mode, |
6034 | name_match_type, | |
6035 | text, word, | |
6036 | TYPE_CODE_UNDEF); | |
2f68a895 TT |
6037 | } |
6038 | ||
eb3ff9a5 PA |
6039 | /* Like collect_symbol_completion_matches, but only collect |
6040 | STRUCT_DOMAIN symbols whose type code is CODE. */ | |
2f68a895 | 6041 | |
eb3ff9a5 PA |
6042 | void |
6043 | collect_symbol_completion_matches_type (completion_tracker &tracker, | |
6044 | const char *text, const char *word, | |
6045 | enum type_code code) | |
2f68a895 | 6046 | { |
c6756f62 | 6047 | complete_symbol_mode mode = complete_symbol_mode::EXPRESSION; |
b5ec771e | 6048 | symbol_name_match_type name_match_type = symbol_name_match_type::EXPRESSION; |
c6756f62 | 6049 | |
2f68a895 TT |
6050 | gdb_assert (code == TYPE_CODE_UNION |
6051 | || code == TYPE_CODE_STRUCT | |
2f68a895 | 6052 | || code == TYPE_CODE_ENUM); |
7e56227d AB |
6053 | current_language->collect_symbol_completion_matches (tracker, mode, |
6054 | name_match_type, | |
6055 | text, word, code); | |
41d27058 JB |
6056 | } |
6057 | ||
eb3ff9a5 PA |
6058 | /* Like collect_symbol_completion_matches, but collects a list of |
6059 | symbols defined in all source files named SRCFILE. */ | |
c94fdfd0 | 6060 | |
eb3ff9a5 PA |
6061 | void |
6062 | collect_file_symbol_completion_matches (completion_tracker &tracker, | |
c6756f62 | 6063 | complete_symbol_mode mode, |
b5ec771e | 6064 | symbol_name_match_type name_match_type, |
eb3ff9a5 PA |
6065 | const char *text, const char *word, |
6066 | const char *srcfile) | |
c94fdfd0 | 6067 | { |
c94fdfd0 | 6068 | /* The symbol we are completing on. Points in same buffer as text. */ |
6f937416 | 6069 | const char *sym_text; |
c94fdfd0 EZ |
6070 | |
6071 | /* Now look for the symbol we are supposed to complete on. | |
6072 | FIXME: This should be language-specific. */ | |
c6756f62 PA |
6073 | if (mode == complete_symbol_mode::LINESPEC) |
6074 | sym_text = text; | |
6075 | else | |
01add95b SM |
6076 | { |
6077 | const char *p; | |
6078 | char quote_found; | |
6079 | const char *quote_pos = NULL; | |
c94fdfd0 | 6080 | |
01add95b SM |
6081 | /* First see if this is a quoted string. */ |
6082 | quote_found = '\0'; | |
6083 | for (p = text; *p != '\0'; ++p) | |
6084 | { | |
6085 | if (quote_found != '\0') | |
6086 | { | |
6087 | if (*p == quote_found) | |
6088 | /* Found close quote. */ | |
6089 | quote_found = '\0'; | |
6090 | else if (*p == '\\' && p[1] == quote_found) | |
6091 | /* A backslash followed by the quote character | |
6092 | doesn't end the string. */ | |
6093 | ++p; | |
6094 | } | |
6095 | else if (*p == '\'' || *p == '"') | |
6096 | { | |
6097 | quote_found = *p; | |
6098 | quote_pos = p; | |
6099 | } | |
6100 | } | |
6101 | if (quote_found == '\'') | |
6102 | /* A string within single quotes can be a symbol, so complete on it. */ | |
6103 | sym_text = quote_pos + 1; | |
6104 | else if (quote_found == '"') | |
6105 | /* A double-quoted string is never a symbol, nor does it make sense | |
6106 | to complete it any other way. */ | |
6107 | { | |
6108 | return; | |
6109 | } | |
6110 | else | |
6111 | { | |
6112 | /* Not a quoted string. */ | |
6113 | sym_text = language_search_unquoted_string (text, p); | |
6114 | } | |
6115 | } | |
c94fdfd0 | 6116 | |
1b026119 | 6117 | lookup_name_info lookup_name (sym_text, name_match_type, true); |
b5ec771e | 6118 | |
8f14146e PA |
6119 | /* Go through symtabs for SRCFILE and check the externs and statics |
6120 | for symbols which match. */ | |
6121 | iterate_over_symtabs (srcfile, [&] (symtab *s) | |
c94fdfd0 | 6122 | { |
c6159652 | 6123 | add_symtab_completions (s->compunit (), |
f9d67a22 | 6124 | tracker, mode, lookup_name, |
1b026119 | 6125 | sym_text, word, TYPE_CODE_UNDEF); |
8f14146e PA |
6126 | return false; |
6127 | }); | |
e27852be DE |
6128 | } |
6129 | ||
c94fdfd0 EZ |
6130 | /* A helper function for make_source_files_completion_list. It adds |
6131 | another file name to a list of possible completions, growing the | |
6132 | list as necessary. */ | |
6133 | ||
6134 | static void | |
6f937416 | 6135 | add_filename_to_list (const char *fname, const char *text, const char *word, |
eb3ff9a5 | 6136 | completion_list *list) |
c94fdfd0 | 6137 | { |
60a20c19 | 6138 | list->emplace_back (make_completion_match_str (fname, text, word)); |
c94fdfd0 EZ |
6139 | } |
6140 | ||
6141 | static int | |
6142 | not_interesting_fname (const char *fname) | |
6143 | { | |
6144 | static const char *illegal_aliens[] = { | |
6145 | "_globals_", /* inserted by coff_symtab_read */ | |
6146 | NULL | |
6147 | }; | |
6148 | int i; | |
6149 | ||
6150 | for (i = 0; illegal_aliens[i]; i++) | |
6151 | { | |
0ba1096a | 6152 | if (filename_cmp (fname, illegal_aliens[i]) == 0) |
c94fdfd0 EZ |
6153 | return 1; |
6154 | } | |
6155 | return 0; | |
6156 | } | |
6157 | ||
f4655dee | 6158 | /* An object of this type is passed as the callback argument to |
ccefe4c4 TT |
6159 | map_partial_symbol_filenames. */ |
6160 | struct add_partial_filename_data | |
6161 | { | |
9fdc877b | 6162 | struct filename_seen_cache *filename_seen_cache; |
6f937416 PA |
6163 | const char *text; |
6164 | const char *word; | |
ccefe4c4 | 6165 | int text_len; |
eb3ff9a5 | 6166 | completion_list *list; |
f4655dee TT |
6167 | |
6168 | void operator() (const char *filename, const char *fullname); | |
ccefe4c4 TT |
6169 | }; |
6170 | ||
6171 | /* A callback for map_partial_symbol_filenames. */ | |
eca864fe | 6172 | |
f4655dee TT |
6173 | void |
6174 | add_partial_filename_data::operator() (const char *filename, | |
6175 | const char *fullname) | |
ccefe4c4 | 6176 | { |
ccefe4c4 TT |
6177 | if (not_interesting_fname (filename)) |
6178 | return; | |
f4655dee TT |
6179 | if (!filename_seen_cache->seen (filename) |
6180 | && filename_ncmp (filename, text, text_len) == 0) | |
ccefe4c4 TT |
6181 | { |
6182 | /* This file matches for a completion; add it to the | |
6183 | current list of matches. */ | |
f4655dee | 6184 | add_filename_to_list (filename, text, word, list); |
ccefe4c4 TT |
6185 | } |
6186 | else | |
6187 | { | |
6188 | const char *base_name = lbasename (filename); | |
433759f7 | 6189 | |
ccefe4c4 | 6190 | if (base_name != filename |
f4655dee TT |
6191 | && !filename_seen_cache->seen (base_name) |
6192 | && filename_ncmp (base_name, text, text_len) == 0) | |
6193 | add_filename_to_list (base_name, text, word, list); | |
ccefe4c4 TT |
6194 | } |
6195 | } | |
6196 | ||
eb3ff9a5 | 6197 | /* Return a list of all source files whose names begin with matching |
49c4e619 | 6198 | TEXT. The file names are looked up in the symbol tables of this |
eb3ff9a5 | 6199 | program. */ |
c94fdfd0 | 6200 | |
eb3ff9a5 | 6201 | completion_list |
6f937416 | 6202 | make_source_files_completion_list (const char *text, const char *word) |
c94fdfd0 | 6203 | { |
c94fdfd0 | 6204 | size_t text_len = strlen (text); |
eb3ff9a5 | 6205 | completion_list list; |
31889e00 | 6206 | const char *base_name; |
ccefe4c4 | 6207 | struct add_partial_filename_data datum; |
c94fdfd0 | 6208 | |
c94fdfd0 EZ |
6209 | if (!have_full_symbols () && !have_partial_symbols ()) |
6210 | return list; | |
6211 | ||
bbf2f4df | 6212 | filename_seen_cache filenames_seen; |
9fdc877b | 6213 | |
2030c079 | 6214 | for (objfile *objfile : current_program_space->objfiles ()) |
c94fdfd0 | 6215 | { |
b669c953 | 6216 | for (compunit_symtab *cu : objfile->compunits ()) |
c94fdfd0 | 6217 | { |
102cc235 | 6218 | for (symtab *s : cu->filetabs ()) |
8b31193a TT |
6219 | { |
6220 | if (not_interesting_fname (s->filename)) | |
6221 | continue; | |
6222 | if (!filenames_seen.seen (s->filename) | |
6223 | && filename_ncmp (s->filename, text, text_len) == 0) | |
6224 | { | |
6225 | /* This file matches for a completion; add it to the current | |
6226 | list of matches. */ | |
6227 | add_filename_to_list (s->filename, text, word, &list); | |
6228 | } | |
6229 | else | |
6230 | { | |
6231 | /* NOTE: We allow the user to type a base name when the | |
6232 | debug info records leading directories, but not the other | |
6233 | way around. This is what subroutines of breakpoint | |
6234 | command do when they parse file names. */ | |
6235 | base_name = lbasename (s->filename); | |
6236 | if (base_name != s->filename | |
6237 | && !filenames_seen.seen (base_name) | |
6238 | && filename_ncmp (base_name, text, text_len) == 0) | |
6239 | add_filename_to_list (base_name, text, word, &list); | |
6240 | } | |
6241 | } | |
c94fdfd0 EZ |
6242 | } |
6243 | } | |
6244 | ||
bbf2f4df | 6245 | datum.filename_seen_cache = &filenames_seen; |
ccefe4c4 TT |
6246 | datum.text = text; |
6247 | datum.word = word; | |
6248 | datum.text_len = text_len; | |
6249 | datum.list = &list; | |
f4655dee | 6250 | map_symbol_filenames (datum, false /*need_fullname*/); |
9fdc877b | 6251 | |
c94fdfd0 EZ |
6252 | return list; |
6253 | } | |
c906108c | 6254 | \f |
51cc5b07 | 6255 | /* Track MAIN */ |
32ac0d11 TT |
6256 | |
6257 | /* Return the "main_info" object for the current program space. If | |
6258 | the object has not yet been created, create it and fill in some | |
6259 | default values. */ | |
6260 | ||
6261 | static struct main_info * | |
6262 | get_main_info (void) | |
6263 | { | |
a32ad8c5 | 6264 | struct main_info *info = main_progspace_key.get (current_program_space); |
32ac0d11 TT |
6265 | |
6266 | if (info == NULL) | |
6267 | { | |
3d548a53 TT |
6268 | /* It may seem strange to store the main name in the progspace |
6269 | and also in whatever objfile happens to see a main name in | |
6270 | its debug info. The reason for this is mainly historical: | |
6271 | gdb returned "main" as the name even if no function named | |
6272 | "main" was defined the program; and this approach lets us | |
6273 | keep compatibility. */ | |
a32ad8c5 | 6274 | info = main_progspace_key.emplace (current_program_space); |
32ac0d11 TT |
6275 | } |
6276 | ||
6277 | return info; | |
6278 | } | |
6279 | ||
3d548a53 | 6280 | static void |
9e6c82ad | 6281 | set_main_name (const char *name, enum language lang) |
51cc5b07 | 6282 | { |
32ac0d11 TT |
6283 | struct main_info *info = get_main_info (); |
6284 | ||
6285 | if (info->name_of_main != NULL) | |
51cc5b07 | 6286 | { |
32ac0d11 TT |
6287 | xfree (info->name_of_main); |
6288 | info->name_of_main = NULL; | |
6289 | info->language_of_main = language_unknown; | |
51cc5b07 AC |
6290 | } |
6291 | if (name != NULL) | |
6292 | { | |
32ac0d11 TT |
6293 | info->name_of_main = xstrdup (name); |
6294 | info->language_of_main = lang; | |
51cc5b07 AC |
6295 | } |
6296 | } | |
6297 | ||
ea53e89f JB |
6298 | /* Deduce the name of the main procedure, and set NAME_OF_MAIN |
6299 | accordingly. */ | |
6300 | ||
6301 | static void | |
6302 | find_main_name (void) | |
6303 | { | |
cd6c7346 | 6304 | const char *new_main_name; |
3d548a53 TT |
6305 | |
6306 | /* First check the objfiles to see whether a debuginfo reader has | |
6307 | picked up the appropriate main name. Historically the main name | |
6308 | was found in a more or less random way; this approach instead | |
6309 | relies on the order of objfile creation -- which still isn't | |
6310 | guaranteed to get the correct answer, but is just probably more | |
6311 | accurate. */ | |
2030c079 | 6312 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
6313 | { |
6314 | if (objfile->per_bfd->name_of_main != NULL) | |
6315 | { | |
6316 | set_main_name (objfile->per_bfd->name_of_main, | |
6317 | objfile->per_bfd->language_of_main); | |
6318 | return; | |
6319 | } | |
6320 | } | |
ea53e89f JB |
6321 | |
6322 | /* Try to see if the main procedure is in Ada. */ | |
6323 | /* FIXME: brobecker/2005-03-07: Another way of doing this would | |
6324 | be to add a new method in the language vector, and call this | |
6325 | method for each language until one of them returns a non-empty | |
6326 | name. This would allow us to remove this hard-coded call to | |
6327 | an Ada function. It is not clear that this is a better approach | |
6328 | at this point, because all methods need to be written in a way | |
c378eb4e | 6329 | such that false positives never be returned. For instance, it is |
ea53e89f JB |
6330 | important that a method does not return a wrong name for the main |
6331 | procedure if the main procedure is actually written in a different | |
6332 | language. It is easy to guaranty this with Ada, since we use a | |
6333 | special symbol generated only when the main in Ada to find the name | |
c378eb4e | 6334 | of the main procedure. It is difficult however to see how this can |
ea53e89f JB |
6335 | be guarantied for languages such as C, for instance. This suggests |
6336 | that order of call for these methods becomes important, which means | |
6337 | a more complicated approach. */ | |
6338 | new_main_name = ada_main_name (); | |
6339 | if (new_main_name != NULL) | |
9af17804 | 6340 | { |
9e6c82ad | 6341 | set_main_name (new_main_name, language_ada); |
ea53e89f JB |
6342 | return; |
6343 | } | |
6344 | ||
63778547 IB |
6345 | new_main_name = d_main_name (); |
6346 | if (new_main_name != NULL) | |
6347 | { | |
6348 | set_main_name (new_main_name, language_d); | |
6349 | return; | |
6350 | } | |
6351 | ||
a766d390 DE |
6352 | new_main_name = go_main_name (); |
6353 | if (new_main_name != NULL) | |
6354 | { | |
9e6c82ad | 6355 | set_main_name (new_main_name, language_go); |
a766d390 DE |
6356 | return; |
6357 | } | |
6358 | ||
cd6c7346 PM |
6359 | new_main_name = pascal_main_name (); |
6360 | if (new_main_name != NULL) | |
9af17804 | 6361 | { |
9e6c82ad | 6362 | set_main_name (new_main_name, language_pascal); |
cd6c7346 PM |
6363 | return; |
6364 | } | |
6365 | ||
ea53e89f JB |
6366 | /* The languages above didn't identify the name of the main procedure. |
6367 | Fallback to "main". */ | |
d3214198 TV |
6368 | |
6369 | /* Try to find language for main in psymtabs. */ | |
6370 | enum language lang | |
6371 | = find_quick_global_symbol_language ("main", VAR_DOMAIN); | |
6372 | if (lang != language_unknown) | |
6373 | { | |
6374 | set_main_name ("main", lang); | |
6375 | return; | |
6376 | } | |
6377 | ||
9e6c82ad | 6378 | set_main_name ("main", language_unknown); |
ea53e89f JB |
6379 | } |
6380 | ||
cd215b2e TT |
6381 | /* See symtab.h. */ |
6382 | ||
6383 | const char * | |
6384 | main_name () | |
51cc5b07 | 6385 | { |
32ac0d11 TT |
6386 | struct main_info *info = get_main_info (); |
6387 | ||
6388 | if (info->name_of_main == NULL) | |
ea53e89f JB |
6389 | find_main_name (); |
6390 | ||
32ac0d11 | 6391 | return info->name_of_main; |
51cc5b07 AC |
6392 | } |
6393 | ||
9e6c82ad TT |
6394 | /* Return the language of the main function. If it is not known, |
6395 | return language_unknown. */ | |
6396 | ||
6397 | enum language | |
6398 | main_language (void) | |
6399 | { | |
32ac0d11 TT |
6400 | struct main_info *info = get_main_info (); |
6401 | ||
6402 | if (info->name_of_main == NULL) | |
6403 | find_main_name (); | |
6404 | ||
6405 | return info->language_of_main; | |
9e6c82ad TT |
6406 | } |
6407 | ||
ea53e89f JB |
6408 | /* Handle ``executable_changed'' events for the symtab module. */ |
6409 | ||
6410 | static void | |
781b42b0 | 6411 | symtab_observer_executable_changed (void) |
ea53e89f JB |
6412 | { |
6413 | /* NAME_OF_MAIN may no longer be the same, so reset it for now. */ | |
9e6c82ad | 6414 | set_main_name (NULL, language_unknown); |
ea53e89f | 6415 | } |
51cc5b07 | 6416 | |
a6c727b2 DJ |
6417 | /* Return 1 if the supplied producer string matches the ARM RealView |
6418 | compiler (armcc). */ | |
6419 | ||
ececd218 | 6420 | bool |
a6c727b2 DJ |
6421 | producer_is_realview (const char *producer) |
6422 | { | |
6423 | static const char *const arm_idents[] = { | |
6424 | "ARM C Compiler, ADS", | |
6425 | "Thumb C Compiler, ADS", | |
6426 | "ARM C++ Compiler, ADS", | |
6427 | "Thumb C++ Compiler, ADS", | |
6428 | "ARM/Thumb C/C++ Compiler, RVCT", | |
6429 | "ARM C/C++ Compiler, RVCT" | |
6430 | }; | |
a6c727b2 DJ |
6431 | |
6432 | if (producer == NULL) | |
ececd218 | 6433 | return false; |
a6c727b2 | 6434 | |
696d6f4d TT |
6435 | for (const char *ident : arm_idents) |
6436 | if (startswith (producer, ident)) | |
ececd218 | 6437 | return true; |
a6c727b2 | 6438 | |
ececd218 | 6439 | return false; |
a6c727b2 | 6440 | } |
ed0616c6 | 6441 | |
f1e6e072 TT |
6442 | \f |
6443 | ||
6444 | /* The next index to hand out in response to a registration request. */ | |
6445 | ||
6446 | static int next_aclass_value = LOC_FINAL_VALUE; | |
6447 | ||
6448 | /* The maximum number of "aclass" registrations we support. This is | |
6449 | constant for convenience. */ | |
6450 | #define MAX_SYMBOL_IMPLS (LOC_FINAL_VALUE + 10) | |
6451 | ||
6452 | /* The objects representing the various "aclass" values. The elements | |
6453 | from 0 up to LOC_FINAL_VALUE-1 represent themselves, and subsequent | |
6454 | elements are those registered at gdb initialization time. */ | |
6455 | ||
6456 | static struct symbol_impl symbol_impl[MAX_SYMBOL_IMPLS]; | |
6457 | ||
6458 | /* The globally visible pointer. This is separate from 'symbol_impl' | |
6459 | so that it can be const. */ | |
6460 | ||
6bc3c5b4 | 6461 | gdb::array_view<const struct symbol_impl> symbol_impls (symbol_impl); |
f1e6e072 TT |
6462 | |
6463 | /* Make sure we saved enough room in struct symbol. */ | |
6464 | ||
6465 | gdb_static_assert (MAX_SYMBOL_IMPLS <= (1 << SYMBOL_ACLASS_BITS)); | |
6466 | ||
6467 | /* Register a computed symbol type. ACLASS must be LOC_COMPUTED. OPS | |
6468 | is the ops vector associated with this index. This returns the new | |
6469 | index, which should be used as the aclass_index field for symbols | |
6470 | of this type. */ | |
6471 | ||
6472 | int | |
6473 | register_symbol_computed_impl (enum address_class aclass, | |
6474 | const struct symbol_computed_ops *ops) | |
6475 | { | |
6476 | int result = next_aclass_value++; | |
6477 | ||
6478 | gdb_assert (aclass == LOC_COMPUTED); | |
6479 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6480 | symbol_impl[result].aclass = aclass; | |
6481 | symbol_impl[result].ops_computed = ops; | |
6482 | ||
24d6c2a0 TT |
6483 | /* Sanity check OPS. */ |
6484 | gdb_assert (ops != NULL); | |
6485 | gdb_assert (ops->tracepoint_var_ref != NULL); | |
6486 | gdb_assert (ops->describe_location != NULL); | |
0b31a4bc | 6487 | gdb_assert (ops->get_symbol_read_needs != NULL); |
24d6c2a0 TT |
6488 | gdb_assert (ops->read_variable != NULL); |
6489 | ||
f1e6e072 TT |
6490 | return result; |
6491 | } | |
6492 | ||
6493 | /* Register a function with frame base type. ACLASS must be LOC_BLOCK. | |
6494 | OPS is the ops vector associated with this index. This returns the | |
6495 | new index, which should be used as the aclass_index field for symbols | |
6496 | of this type. */ | |
6497 | ||
6498 | int | |
6499 | register_symbol_block_impl (enum address_class aclass, | |
6500 | const struct symbol_block_ops *ops) | |
6501 | { | |
6502 | int result = next_aclass_value++; | |
6503 | ||
6504 | gdb_assert (aclass == LOC_BLOCK); | |
6505 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6506 | symbol_impl[result].aclass = aclass; | |
6507 | symbol_impl[result].ops_block = ops; | |
6508 | ||
6509 | /* Sanity check OPS. */ | |
6510 | gdb_assert (ops != NULL); | |
6511 | gdb_assert (ops->find_frame_base_location != NULL); | |
6512 | ||
6513 | return result; | |
6514 | } | |
6515 | ||
6516 | /* Register a register symbol type. ACLASS must be LOC_REGISTER or | |
6517 | LOC_REGPARM_ADDR. OPS is the register ops vector associated with | |
6518 | this index. This returns the new index, which should be used as | |
6519 | the aclass_index field for symbols of this type. */ | |
6520 | ||
6521 | int | |
6522 | register_symbol_register_impl (enum address_class aclass, | |
6523 | const struct symbol_register_ops *ops) | |
6524 | { | |
6525 | int result = next_aclass_value++; | |
6526 | ||
6527 | gdb_assert (aclass == LOC_REGISTER || aclass == LOC_REGPARM_ADDR); | |
6528 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6529 | symbol_impl[result].aclass = aclass; | |
6530 | symbol_impl[result].ops_register = ops; | |
6531 | ||
6532 | return result; | |
6533 | } | |
6534 | ||
6535 | /* Initialize elements of 'symbol_impl' for the constants in enum | |
6536 | address_class. */ | |
6537 | ||
6538 | static void | |
6539 | initialize_ordinary_address_classes (void) | |
6540 | { | |
6541 | int i; | |
6542 | ||
6543 | for (i = 0; i < LOC_FINAL_VALUE; ++i) | |
aead7601 | 6544 | symbol_impl[i].aclass = (enum address_class) i; |
f1e6e072 TT |
6545 | } |
6546 | ||
6547 | \f | |
6548 | ||
08be3fe3 DE |
6549 | /* See symtab.h. */ |
6550 | ||
6551 | struct objfile * | |
e19b2d94 | 6552 | symbol::objfile () const |
08be3fe3 | 6553 | { |
e19b2d94 TT |
6554 | gdb_assert (is_objfile_owned ()); |
6555 | return owner.symtab->compunit ()->objfile (); | |
08be3fe3 DE |
6556 | } |
6557 | ||
6558 | /* See symtab.h. */ | |
6559 | ||
6560 | struct gdbarch * | |
bcd6845e | 6561 | symbol::arch () const |
08be3fe3 | 6562 | { |
bcd6845e TT |
6563 | if (!is_objfile_owned ()) |
6564 | return owner.arch; | |
6565 | return owner.symtab->compunit ()->objfile ()->arch (); | |
08be3fe3 DE |
6566 | } |
6567 | ||
6568 | /* See symtab.h. */ | |
6569 | ||
6570 | struct symtab * | |
4206d69e | 6571 | symbol::symtab () const |
08be3fe3 | 6572 | { |
4206d69e TT |
6573 | gdb_assert (is_objfile_owned ()); |
6574 | return owner.symtab; | |
08be3fe3 DE |
6575 | } |
6576 | ||
6577 | /* See symtab.h. */ | |
6578 | ||
6579 | void | |
4206d69e | 6580 | symbol::set_symtab (struct symtab *symtab) |
08be3fe3 | 6581 | { |
4206d69e TT |
6582 | gdb_assert (is_objfile_owned ()); |
6583 | owner.symtab = symtab; | |
08be3fe3 DE |
6584 | } |
6585 | ||
4b610737 TT |
6586 | /* See symtab.h. */ |
6587 | ||
6588 | CORE_ADDR | |
6589 | get_symbol_address (const struct symbol *sym) | |
6590 | { | |
6591 | gdb_assert (sym->maybe_copied); | |
66d7f48f | 6592 | gdb_assert (sym->aclass () == LOC_STATIC); |
4b610737 | 6593 | |
987012b8 | 6594 | const char *linkage_name = sym->linkage_name (); |
4b610737 TT |
6595 | |
6596 | for (objfile *objfile : current_program_space->objfiles ()) | |
6597 | { | |
3e65b3e9 TT |
6598 | if (objfile->separate_debug_objfile_backlink != nullptr) |
6599 | continue; | |
6600 | ||
4b610737 TT |
6601 | bound_minimal_symbol minsym |
6602 | = lookup_minimal_symbol_linkage (linkage_name, objfile); | |
6603 | if (minsym.minsym != nullptr) | |
4aeddc50 | 6604 | return minsym.value_address (); |
4b610737 | 6605 | } |
4aeddc50 | 6606 | return sym->m_value.address; |
4b610737 TT |
6607 | } |
6608 | ||
6609 | /* See symtab.h. */ | |
6610 | ||
6611 | CORE_ADDR | |
6612 | get_msymbol_address (struct objfile *objf, const struct minimal_symbol *minsym) | |
6613 | { | |
6614 | gdb_assert (minsym->maybe_copied); | |
6615 | gdb_assert ((objf->flags & OBJF_MAINLINE) == 0); | |
6616 | ||
c9d95fa3 | 6617 | const char *linkage_name = minsym->linkage_name (); |
4b610737 TT |
6618 | |
6619 | for (objfile *objfile : current_program_space->objfiles ()) | |
6620 | { | |
3e65b3e9 TT |
6621 | if (objfile->separate_debug_objfile_backlink == nullptr |
6622 | && (objfile->flags & OBJF_MAINLINE) != 0) | |
4b610737 TT |
6623 | { |
6624 | bound_minimal_symbol found | |
6625 | = lookup_minimal_symbol_linkage (linkage_name, objfile); | |
6626 | if (found.minsym != nullptr) | |
4aeddc50 | 6627 | return found.value_address (); |
4b610737 TT |
6628 | } |
6629 | } | |
4aeddc50 | 6630 | return (minsym->m_value.address |
a52d653e | 6631 | + objf->section_offsets[minsym->section_index ()]); |
4b610737 TT |
6632 | } |
6633 | ||
e623cf5d TT |
6634 | \f |
6635 | ||
165f8965 AB |
6636 | /* Hold the sub-commands of 'info module'. */ |
6637 | ||
6638 | static struct cmd_list_element *info_module_cmdlist = NULL; | |
6639 | ||
165f8965 AB |
6640 | /* See symtab.h. */ |
6641 | ||
6642 | std::vector<module_symbol_search> | |
6643 | search_module_symbols (const char *module_regexp, const char *regexp, | |
6644 | const char *type_regexp, search_domain kind) | |
6645 | { | |
6646 | std::vector<module_symbol_search> results; | |
6647 | ||
6648 | /* Search for all modules matching MODULE_REGEXP. */ | |
470c0b1c AB |
6649 | global_symbol_searcher spec1 (MODULES_DOMAIN, module_regexp); |
6650 | spec1.set_exclude_minsyms (true); | |
6651 | std::vector<symbol_search> modules = spec1.search (); | |
165f8965 AB |
6652 | |
6653 | /* Now search for all symbols of the required KIND matching the required | |
6654 | regular expressions. We figure out which ones are in which modules | |
6655 | below. */ | |
470c0b1c AB |
6656 | global_symbol_searcher spec2 (kind, regexp); |
6657 | spec2.set_symbol_type_regexp (type_regexp); | |
6658 | spec2.set_exclude_minsyms (true); | |
6659 | std::vector<symbol_search> symbols = spec2.search (); | |
165f8965 AB |
6660 | |
6661 | /* Now iterate over all MODULES, checking to see which items from | |
6662 | SYMBOLS are in each module. */ | |
6663 | for (const symbol_search &p : modules) | |
6664 | { | |
6665 | QUIT; | |
6666 | ||
6667 | /* This is a module. */ | |
6668 | gdb_assert (p.symbol != nullptr); | |
6669 | ||
987012b8 | 6670 | std::string prefix = p.symbol->print_name (); |
165f8965 AB |
6671 | prefix += "::"; |
6672 | ||
6673 | for (const symbol_search &q : symbols) | |
6674 | { | |
6675 | if (q.symbol == nullptr) | |
6676 | continue; | |
6677 | ||
987012b8 | 6678 | if (strncmp (q.symbol->print_name (), prefix.c_str (), |
165f8965 AB |
6679 | prefix.size ()) != 0) |
6680 | continue; | |
6681 | ||
6682 | results.push_back ({p, q}); | |
6683 | } | |
6684 | } | |
6685 | ||
6686 | return results; | |
6687 | } | |
6688 | ||
6689 | /* Implement the core of both 'info module functions' and 'info module | |
6690 | variables'. */ | |
6691 | ||
6692 | static void | |
6693 | info_module_subcommand (bool quiet, const char *module_regexp, | |
6694 | const char *regexp, const char *type_regexp, | |
6695 | search_domain kind) | |
6696 | { | |
6697 | /* Print a header line. Don't build the header line bit by bit as this | |
6698 | prevents internationalisation. */ | |
6699 | if (!quiet) | |
6700 | { | |
6701 | if (module_regexp == nullptr) | |
6702 | { | |
6703 | if (type_regexp == nullptr) | |
6704 | { | |
6705 | if (regexp == nullptr) | |
6cb06a8c TT |
6706 | gdb_printf ((kind == VARIABLES_DOMAIN |
6707 | ? _("All variables in all modules:") | |
6708 | : _("All functions in all modules:"))); | |
165f8965 | 6709 | else |
6cb06a8c | 6710 | gdb_printf |
165f8965 AB |
6711 | ((kind == VARIABLES_DOMAIN |
6712 | ? _("All variables matching regular expression" | |
6713 | " \"%s\" in all modules:") | |
6714 | : _("All functions matching regular expression" | |
6715 | " \"%s\" in all modules:")), | |
6716 | regexp); | |
6717 | } | |
6718 | else | |
6719 | { | |
6720 | if (regexp == nullptr) | |
6cb06a8c | 6721 | gdb_printf |
165f8965 AB |
6722 | ((kind == VARIABLES_DOMAIN |
6723 | ? _("All variables with type matching regular " | |
6724 | "expression \"%s\" in all modules:") | |
6725 | : _("All functions with type matching regular " | |
6726 | "expression \"%s\" in all modules:")), | |
6727 | type_regexp); | |
6728 | else | |
6cb06a8c | 6729 | gdb_printf |
165f8965 AB |
6730 | ((kind == VARIABLES_DOMAIN |
6731 | ? _("All variables matching regular expression " | |
6732 | "\"%s\",\n\twith type matching regular " | |
6733 | "expression \"%s\" in all modules:") | |
6734 | : _("All functions matching regular expression " | |
6735 | "\"%s\",\n\twith type matching regular " | |
6736 | "expression \"%s\" in all modules:")), | |
6737 | regexp, type_regexp); | |
6738 | } | |
6739 | } | |
6740 | else | |
6741 | { | |
6742 | if (type_regexp == nullptr) | |
6743 | { | |
6744 | if (regexp == nullptr) | |
6cb06a8c | 6745 | gdb_printf |
165f8965 AB |
6746 | ((kind == VARIABLES_DOMAIN |
6747 | ? _("All variables in all modules matching regular " | |
6748 | "expression \"%s\":") | |
6749 | : _("All functions in all modules matching regular " | |
6750 | "expression \"%s\":")), | |
6751 | module_regexp); | |
6752 | else | |
6cb06a8c | 6753 | gdb_printf |
165f8965 AB |
6754 | ((kind == VARIABLES_DOMAIN |
6755 | ? _("All variables matching regular expression " | |
6756 | "\"%s\",\n\tin all modules matching regular " | |
6757 | "expression \"%s\":") | |
6758 | : _("All functions matching regular expression " | |
6759 | "\"%s\",\n\tin all modules matching regular " | |
6760 | "expression \"%s\":")), | |
6761 | regexp, module_regexp); | |
6762 | } | |
6763 | else | |
6764 | { | |
6765 | if (regexp == nullptr) | |
6cb06a8c | 6766 | gdb_printf |
165f8965 AB |
6767 | ((kind == VARIABLES_DOMAIN |
6768 | ? _("All variables with type matching regular " | |
6769 | "expression \"%s\"\n\tin all modules matching " | |
6770 | "regular expression \"%s\":") | |
6771 | : _("All functions with type matching regular " | |
6772 | "expression \"%s\"\n\tin all modules matching " | |
6773 | "regular expression \"%s\":")), | |
6774 | type_regexp, module_regexp); | |
6775 | else | |
6cb06a8c | 6776 | gdb_printf |
165f8965 AB |
6777 | ((kind == VARIABLES_DOMAIN |
6778 | ? _("All variables matching regular expression " | |
6779 | "\"%s\",\n\twith type matching regular expression " | |
6780 | "\"%s\",\n\tin all modules matching regular " | |
6781 | "expression \"%s\":") | |
6782 | : _("All functions matching regular expression " | |
6783 | "\"%s\",\n\twith type matching regular expression " | |
6784 | "\"%s\",\n\tin all modules matching regular " | |
6785 | "expression \"%s\":")), | |
6786 | regexp, type_regexp, module_regexp); | |
6787 | } | |
6788 | } | |
6cb06a8c | 6789 | gdb_printf ("\n"); |
165f8965 AB |
6790 | } |
6791 | ||
6792 | /* Find all symbols of type KIND matching the given regular expressions | |
6793 | along with the symbols for the modules in which those symbols | |
6794 | reside. */ | |
6795 | std::vector<module_symbol_search> module_symbols | |
6796 | = search_module_symbols (module_regexp, regexp, type_regexp, kind); | |
6797 | ||
6798 | std::sort (module_symbols.begin (), module_symbols.end (), | |
6799 | [] (const module_symbol_search &a, const module_symbol_search &b) | |
6800 | { | |
6801 | if (a.first < b.first) | |
6802 | return true; | |
6803 | else if (a.first == b.first) | |
6804 | return a.second < b.second; | |
6805 | else | |
6806 | return false; | |
6807 | }); | |
6808 | ||
6809 | const char *last_filename = ""; | |
6810 | const symbol *last_module_symbol = nullptr; | |
6811 | for (const module_symbol_search &ms : module_symbols) | |
6812 | { | |
6813 | const symbol_search &p = ms.first; | |
6814 | const symbol_search &q = ms.second; | |
6815 | ||
6816 | gdb_assert (q.symbol != nullptr); | |
6817 | ||
6818 | if (last_module_symbol != p.symbol) | |
6819 | { | |
6cb06a8c TT |
6820 | gdb_printf ("\n"); |
6821 | gdb_printf (_("Module \"%s\":\n"), p.symbol->print_name ()); | |
165f8965 AB |
6822 | last_module_symbol = p.symbol; |
6823 | last_filename = ""; | |
6824 | } | |
6825 | ||
6826 | print_symbol_info (FUNCTIONS_DOMAIN, q.symbol, q.block, | |
6827 | last_filename); | |
6828 | last_filename | |
4206d69e | 6829 | = symtab_to_filename_for_display (q.symbol->symtab ()); |
165f8965 AB |
6830 | } |
6831 | } | |
6832 | ||
6833 | /* Hold the option values for the 'info module .....' sub-commands. */ | |
6834 | ||
6835 | struct info_modules_var_func_options | |
6836 | { | |
6837 | bool quiet = false; | |
e0700ba4 SM |
6838 | std::string type_regexp; |
6839 | std::string module_regexp; | |
165f8965 AB |
6840 | }; |
6841 | ||
6842 | /* The options used by 'info module variables' and 'info module functions' | |
6843 | commands. */ | |
6844 | ||
6845 | static const gdb::option::option_def info_modules_var_func_options_defs [] = { | |
6846 | gdb::option::boolean_option_def<info_modules_var_func_options> { | |
6847 | "q", | |
6848 | [] (info_modules_var_func_options *opt) { return &opt->quiet; }, | |
6849 | nullptr, /* show_cmd_cb */ | |
6850 | nullptr /* set_doc */ | |
6851 | }, | |
6852 | ||
6853 | gdb::option::string_option_def<info_modules_var_func_options> { | |
6854 | "t", | |
6855 | [] (info_modules_var_func_options *opt) { return &opt->type_regexp; }, | |
6856 | nullptr, /* show_cmd_cb */ | |
6857 | nullptr /* set_doc */ | |
6858 | }, | |
6859 | ||
6860 | gdb::option::string_option_def<info_modules_var_func_options> { | |
6861 | "m", | |
6862 | [] (info_modules_var_func_options *opt) { return &opt->module_regexp; }, | |
6863 | nullptr, /* show_cmd_cb */ | |
6864 | nullptr /* set_doc */ | |
6865 | } | |
6866 | }; | |
6867 | ||
6868 | /* Return the option group used by the 'info module ...' sub-commands. */ | |
6869 | ||
6870 | static inline gdb::option::option_def_group | |
6871 | make_info_modules_var_func_options_def_group | |
6872 | (info_modules_var_func_options *opts) | |
6873 | { | |
6874 | return {{info_modules_var_func_options_defs}, opts}; | |
6875 | } | |
6876 | ||
6877 | /* Implements the 'info module functions' command. */ | |
6878 | ||
6879 | static void | |
6880 | info_module_functions_command (const char *args, int from_tty) | |
6881 | { | |
6882 | info_modules_var_func_options opts; | |
6883 | auto grp = make_info_modules_var_func_options_def_group (&opts); | |
6884 | gdb::option::process_options | |
6885 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
6886 | if (args != nullptr && *args == '\0') | |
6887 | args = nullptr; | |
6888 | ||
e0700ba4 SM |
6889 | info_module_subcommand |
6890 | (opts.quiet, | |
6891 | opts.module_regexp.empty () ? nullptr : opts.module_regexp.c_str (), args, | |
6892 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
6893 | FUNCTIONS_DOMAIN); | |
165f8965 AB |
6894 | } |
6895 | ||
6896 | /* Implements the 'info module variables' command. */ | |
6897 | ||
6898 | static void | |
6899 | info_module_variables_command (const char *args, int from_tty) | |
6900 | { | |
6901 | info_modules_var_func_options opts; | |
6902 | auto grp = make_info_modules_var_func_options_def_group (&opts); | |
6903 | gdb::option::process_options | |
6904 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
6905 | if (args != nullptr && *args == '\0') | |
6906 | args = nullptr; | |
6907 | ||
e0700ba4 SM |
6908 | info_module_subcommand |
6909 | (opts.quiet, | |
6910 | opts.module_regexp.empty () ? nullptr : opts.module_regexp.c_str (), args, | |
6911 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
6912 | VARIABLES_DOMAIN); | |
165f8965 AB |
6913 | } |
6914 | ||
6915 | /* Command completer for 'info module ...' sub-commands. */ | |
6916 | ||
6917 | static void | |
6918 | info_module_var_func_command_completer (struct cmd_list_element *ignore, | |
6919 | completion_tracker &tracker, | |
6920 | const char *text, | |
6921 | const char * /* word */) | |
6922 | { | |
6923 | ||
6924 | const auto group = make_info_modules_var_func_options_def_group (nullptr); | |
6925 | if (gdb::option::complete_options | |
6926 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
6927 | return; | |
6928 | ||
6929 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
6930 | symbol_completer (ignore, tracker, text, word); | |
6931 | } | |
6932 | ||
6933 | \f | |
6934 | ||
6c265988 | 6935 | void _initialize_symtab (); |
c906108c | 6936 | void |
6c265988 | 6937 | _initialize_symtab () |
c906108c | 6938 | { |
60cfcb20 AB |
6939 | cmd_list_element *c; |
6940 | ||
f1e6e072 TT |
6941 | initialize_ordinary_address_classes (); |
6942 | ||
60cfcb20 AB |
6943 | c = add_info ("variables", info_variables_command, |
6944 | info_print_args_help (_("\ | |
12615cba | 6945 | All global and static variable names or those matching REGEXPs.\n\ |
4acfdd20 | 6946 | Usage: info variables [-q] [-n] [-t TYPEREGEXP] [NAMEREGEXP]\n\ |
12615cba | 6947 | Prints the global and static variables.\n"), |
4acfdd20 AB |
6948 | _("global and static variables"), |
6949 | true)); | |
095252be | 6950 | set_cmd_completer_handle_brkchars (c, info_vars_funcs_command_completer); |
c906108c | 6951 | |
60cfcb20 AB |
6952 | c = add_info ("functions", info_functions_command, |
6953 | info_print_args_help (_("\ | |
12615cba | 6954 | All function names or those matching REGEXPs.\n\ |
4acfdd20 | 6955 | Usage: info functions [-q] [-n] [-t TYPEREGEXP] [NAMEREGEXP]\n\ |
12615cba | 6956 | Prints the functions.\n"), |
4acfdd20 AB |
6957 | _("functions"), |
6958 | true)); | |
095252be | 6959 | set_cmd_completer_handle_brkchars (c, info_vars_funcs_command_completer); |
c906108c | 6960 | |
a8eab7c6 AB |
6961 | c = add_info ("types", info_types_command, _("\ |
6962 | All type names, or those matching REGEXP.\n\ | |
6963 | Usage: info types [-q] [REGEXP]\n\ | |
6964 | Print information about all types matching REGEXP, or all types if no\n\ | |
6965 | REGEXP is given. The optional flag -q disables printing of headers.")); | |
6966 | set_cmd_completer_handle_brkchars (c, info_types_command_completer); | |
c906108c | 6967 | |
0e350a05 AB |
6968 | const auto info_sources_opts |
6969 | = make_info_sources_options_def_group (nullptr); | |
28cd9371 PW |
6970 | |
6971 | static std::string info_sources_help | |
6972 | = gdb::option::build_help (_("\ | |
6973 | All source files in the program or those matching REGEXP.\n\ | |
6974 | Usage: info sources [OPTION]... [REGEXP]\n\ | |
6975 | By default, REGEXP is used to match anywhere in the filename.\n\ | |
6976 | \n\ | |
6977 | Options:\n\ | |
6978 | %OPTIONS%"), | |
6979 | info_sources_opts); | |
6980 | ||
6981 | c = add_info ("sources", info_sources_command, info_sources_help.c_str ()); | |
6982 | set_cmd_completer_handle_brkchars (c, info_sources_command_completer); | |
c906108c | 6983 | |
59c35742 AB |
6984 | c = add_info ("modules", info_modules_command, |
6985 | _("All module names, or those matching REGEXP.")); | |
6986 | set_cmd_completer_handle_brkchars (c, info_types_command_completer); | |
6987 | ||
0743fc83 | 6988 | add_basic_prefix_cmd ("module", class_info, _("\ |
165f8965 | 6989 | Print information about modules."), |
2f822da5 | 6990 | &info_module_cmdlist, 0, &infolist); |
165f8965 AB |
6991 | |
6992 | c = add_cmd ("functions", class_info, info_module_functions_command, _("\ | |
6993 | Display functions arranged by modules.\n\ | |
6994 | Usage: info module functions [-q] [-m MODREGEXP] [-t TYPEREGEXP] [REGEXP]\n\ | |
6995 | Print a summary of all functions within each Fortran module, grouped by\n\ | |
6996 | module and file. For each function the line on which the function is\n\ | |
6997 | defined is given along with the type signature and name of the function.\n\ | |
6998 | \n\ | |
6999 | If REGEXP is provided then only functions whose name matches REGEXP are\n\ | |
7000 | listed. If MODREGEXP is provided then only functions in modules matching\n\ | |
7001 | MODREGEXP are listed. If TYPEREGEXP is given then only functions whose\n\ | |
7002 | type signature matches TYPEREGEXP are listed.\n\ | |
7003 | \n\ | |
7004 | The -q flag suppresses printing some header information."), | |
7005 | &info_module_cmdlist); | |
7006 | set_cmd_completer_handle_brkchars | |
7007 | (c, info_module_var_func_command_completer); | |
7008 | ||
7009 | c = add_cmd ("variables", class_info, info_module_variables_command, _("\ | |
7010 | Display variables arranged by modules.\n\ | |
7011 | Usage: info module variables [-q] [-m MODREGEXP] [-t TYPEREGEXP] [REGEXP]\n\ | |
7012 | Print a summary of all variables within each Fortran module, grouped by\n\ | |
7013 | module and file. For each variable the line on which the variable is\n\ | |
7014 | defined is given along with the type and name of the variable.\n\ | |
7015 | \n\ | |
7016 | If REGEXP is provided then only variables whose name matches REGEXP are\n\ | |
7017 | listed. If MODREGEXP is provided then only variables in modules matching\n\ | |
7018 | MODREGEXP are listed. If TYPEREGEXP is given then only variables whose\n\ | |
7019 | type matches TYPEREGEXP are listed.\n\ | |
7020 | \n\ | |
7021 | The -q flag suppresses printing some header information."), | |
7022 | &info_module_cmdlist); | |
7023 | set_cmd_completer_handle_brkchars | |
7024 | (c, info_module_var_func_command_completer); | |
7025 | ||
c906108c | 7026 | add_com ("rbreak", class_breakpoint, rbreak_command, |
1bedd215 | 7027 | _("Set a breakpoint for all functions matching REGEXP.")); |
c906108c | 7028 | |
717d2f5a | 7029 | add_setshow_enum_cmd ("multiple-symbols", no_class, |
dda83cd7 SM |
7030 | multiple_symbols_modes, &multiple_symbols_mode, |
7031 | _("\ | |
590042fc | 7032 | Set how the debugger handles ambiguities in expressions."), _("\ |
717d2f5a JB |
7033 | Show how the debugger handles ambiguities in expressions."), _("\ |
7034 | Valid values are \"ask\", \"all\", \"cancel\", and the default is \"all\"."), | |
dda83cd7 | 7035 | NULL, NULL, &setlist, &showlist); |
717d2f5a | 7036 | |
c011a4f4 DE |
7037 | add_setshow_boolean_cmd ("basenames-may-differ", class_obscure, |
7038 | &basenames_may_differ, _("\ | |
7039 | Set whether a source file may have multiple base names."), _("\ | |
7040 | Show whether a source file may have multiple base names."), _("\ | |
7041 | (A \"base name\" is the name of a file with the directory part removed.\n\ | |
7042 | Example: The base name of \"/home/user/hello.c\" is \"hello.c\".)\n\ | |
7043 | If set, GDB will canonicalize file names (e.g., expand symlinks)\n\ | |
7044 | before comparing them. Canonicalization is an expensive operation,\n\ | |
7045 | but it allows the same file be known by more than one base name.\n\ | |
7046 | If not set (the default), all source files are assumed to have just\n\ | |
7047 | one base name, and gdb will do file name comparisons more efficiently."), | |
7048 | NULL, NULL, | |
7049 | &setlist, &showlist); | |
7050 | ||
db0fec5c DE |
7051 | add_setshow_zuinteger_cmd ("symtab-create", no_class, &symtab_create_debug, |
7052 | _("Set debugging of symbol table creation."), | |
7053 | _("Show debugging of symbol table creation."), _("\ | |
7054 | When enabled (non-zero), debugging messages are printed when building\n\ | |
7055 | symbol tables. A value of 1 (one) normally provides enough information.\n\ | |
7056 | A value greater than 1 provides more verbose information."), | |
7057 | NULL, | |
7058 | NULL, | |
7059 | &setdebuglist, &showdebuglist); | |
45cfd468 | 7060 | |
cc485e62 DE |
7061 | add_setshow_zuinteger_cmd ("symbol-lookup", no_class, &symbol_lookup_debug, |
7062 | _("\ | |
7063 | Set debugging of symbol lookup."), _("\ | |
7064 | Show debugging of symbol lookup."), _("\ | |
7065 | When enabled (non-zero), symbol lookups are logged."), | |
7066 | NULL, NULL, | |
7067 | &setdebuglist, &showdebuglist); | |
7068 | ||
f57d2163 DE |
7069 | add_setshow_zuinteger_cmd ("symbol-cache-size", no_class, |
7070 | &new_symbol_cache_size, | |
7071 | _("Set the size of the symbol cache."), | |
7072 | _("Show the size of the symbol cache."), _("\ | |
7073 | The size of the symbol cache.\n\ | |
7074 | If zero then the symbol cache is disabled."), | |
7075 | set_symbol_cache_size_handler, NULL, | |
7076 | &maintenance_set_cmdlist, | |
7077 | &maintenance_show_cmdlist); | |
7078 | ||
6109f7a3 LS |
7079 | add_setshow_boolean_cmd ("ignore-prologue-end-flag", no_class, |
7080 | &ignore_prologue_end_flag, | |
7081 | _("Set if the PROLOGUE-END flag is ignored."), | |
7082 | _("Show if the PROLOGUE-END flag is ignored."), | |
7083 | _("\ | |
7084 | The PROLOGUE-END flag from the line-table entries is used to place \ | |
7085 | breakpoints past the prologue of functions. Disabeling its use use forces \ | |
7086 | the use of prologue scanners."), | |
7087 | nullptr, nullptr, | |
7088 | &maintenance_set_cmdlist, | |
7089 | &maintenance_show_cmdlist); | |
7090 | ||
7091 | ||
f57d2163 DE |
7092 | add_cmd ("symbol-cache", class_maintenance, maintenance_print_symbol_cache, |
7093 | _("Dump the symbol cache for each program space."), | |
7094 | &maintenanceprintlist); | |
7095 | ||
7096 | add_cmd ("symbol-cache-statistics", class_maintenance, | |
7097 | maintenance_print_symbol_cache_statistics, | |
7098 | _("Print symbol cache statistics for each program space."), | |
7099 | &maintenanceprintlist); | |
7100 | ||
5e84b7ee SM |
7101 | cmd_list_element *maintenance_flush_symbol_cache_cmd |
7102 | = add_cmd ("symbol-cache", class_maintenance, | |
7103 | maintenance_flush_symbol_cache, | |
7104 | _("Flush the symbol cache for each program space."), | |
7105 | &maintenanceflushlist); | |
7106 | c = add_alias_cmd ("flush-symbol-cache", maintenance_flush_symbol_cache_cmd, | |
50a5f187 AB |
7107 | class_maintenance, 0, &maintenancelist); |
7108 | deprecate_cmd (c, "maintenancelist flush symbol-cache"); | |
f57d2163 | 7109 | |
c90e7d63 SM |
7110 | gdb::observers::executable_changed.attach (symtab_observer_executable_changed, |
7111 | "symtab"); | |
7112 | gdb::observers::new_objfile.attach (symtab_new_objfile_observer, "symtab"); | |
7113 | gdb::observers::free_objfile.attach (symtab_free_objfile_observer, "symtab"); | |
c906108c | 7114 | } |