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c906108c | 1 | /* Symbol table lookup for the GNU debugger, GDB. |
8926118c | 2 | |
1d506c26 | 3 | Copyright (C) 1986-2024 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
19 | |
20 | #include "defs.h" | |
1298c32f | 21 | #include "dwarf2/call-site.h" |
c906108c SS |
22 | #include "symtab.h" |
23 | #include "gdbtypes.h" | |
24 | #include "gdbcore.h" | |
25 | #include "frame.h" | |
26 | #include "target.h" | |
27 | #include "value.h" | |
28 | #include "symfile.h" | |
29 | #include "objfiles.h" | |
30 | #include "gdbcmd.h" | |
d322d6d6 | 31 | #include "gdbsupport/gdb_regex.h" |
c906108c SS |
32 | #include "expression.h" |
33 | #include "language.h" | |
34 | #include "demangle.h" | |
35 | #include "inferior.h" | |
0378c332 | 36 | #include "source.h" |
ef0f16cc | 37 | #include "filenames.h" |
1bae87b9 | 38 | #include "objc-lang.h" |
6aecb9c2 | 39 | #include "d-lang.h" |
1f8173e6 | 40 | #include "ada-lang.h" |
a766d390 | 41 | #include "go-lang.h" |
cd6c7346 | 42 | #include "p-lang.h" |
ff013f42 | 43 | #include "addrmap.h" |
529480d0 | 44 | #include "cli/cli-utils.h" |
1ed9f74e | 45 | #include "cli/cli-style.h" |
50a5f187 | 46 | #include "cli/cli-cmds.h" |
cce0e923 | 47 | #include "fnmatch.h" |
2de7ced7 | 48 | #include "hashtab.h" |
12615cba | 49 | #include "typeprint.h" |
2de7ced7 | 50 | |
bf31fd38 | 51 | #include "gdbsupport/gdb_obstack.h" |
fe898f56 | 52 | #include "block.h" |
de4f826b | 53 | #include "dictionary.h" |
c906108c SS |
54 | |
55 | #include <sys/types.h> | |
56 | #include <fcntl.h> | |
53ce3c39 | 57 | #include <sys/stat.h> |
c906108c | 58 | #include <ctype.h> |
015a42b4 | 59 | #include "cp-abi.h" |
71c25dea | 60 | #include "cp-support.h" |
76727919 | 61 | #include "observable.h" |
3a40aaa0 | 62 | #include "solist.h" |
9a044a89 TT |
63 | #include "macrotab.h" |
64 | #include "macroscope.h" | |
c906108c | 65 | |
270140bd | 66 | #include "parser-defs.h" |
ef0b411a | 67 | #include "completer.h" |
5ed8105e | 68 | #include "progspace-and-thread.h" |
6b09f134 | 69 | #include <optional> |
bbf2f4df | 70 | #include "filename-seen-cache.h" |
46a62268 | 71 | #include "arch-utils.h" |
b9c04fb2 | 72 | #include <algorithm> |
8082468f | 73 | #include <string_view> |
268a13a5 | 74 | #include "gdbsupport/pathstuff.h" |
1a6ff1a9 | 75 | #include "gdbsupport/common-utils.h" |
fe6356de | 76 | #include <optional> |
ccefe4c4 | 77 | |
ff6c39cf | 78 | /* Forward declarations for local functions. */ |
c906108c | 79 | |
0b39b52e | 80 | static void rbreak_command (const char *, int); |
c906108c | 81 | |
977a0c16 | 82 | static int find_line_common (const linetable *, int, int *, int); |
c906108c | 83 | |
d12307c1 PMR |
84 | static struct block_symbol |
85 | lookup_symbol_aux (const char *name, | |
de63c46b | 86 | symbol_name_match_type match_type, |
d12307c1 | 87 | const struct block *block, |
ccf41c24 | 88 | const domain_search_flags domain, |
d12307c1 PMR |
89 | enum language language, |
90 | struct field_of_this_result *); | |
fba7f19c | 91 | |
e4051eeb | 92 | static |
d12307c1 | 93 | struct block_symbol lookup_local_symbol (const char *name, |
de63c46b | 94 | symbol_name_match_type match_type, |
d12307c1 | 95 | const struct block *block, |
ccf41c24 | 96 | const domain_search_flags domain, |
d12307c1 | 97 | enum language language); |
8155455b | 98 | |
d12307c1 | 99 | static struct block_symbol |
c32e6a04 CB |
100 | lookup_symbol_in_objfile (struct objfile *objfile, |
101 | enum block_enum block_index, | |
ccf41c24 TT |
102 | const char *name, |
103 | const domain_search_flags domain); | |
c906108c | 104 | |
a49d37f3 SM |
105 | static void set_main_name (program_space *pspace, const char *name, |
106 | language lang); | |
a0a031bc | 107 | |
32ac0d11 TT |
108 | /* Type of the data stored on the program space. */ |
109 | ||
110 | struct main_info | |
111 | { | |
112 | /* Name of "main". */ | |
113 | ||
25eb2931 | 114 | std::string name_of_main; |
32ac0d11 TT |
115 | |
116 | /* Language of "main". */ | |
117 | ||
a32ad8c5 | 118 | enum language language_of_main = language_unknown; |
32ac0d11 TT |
119 | }; |
120 | ||
a32ad8c5 TT |
121 | /* Program space key for finding name and language of "main". */ |
122 | ||
08b8a139 | 123 | static const registry<program_space>::key<main_info> main_progspace_key; |
a32ad8c5 | 124 | |
f57d2163 DE |
125 | /* The default symbol cache size. |
126 | There is no extra cpu cost for large N (except when flushing the cache, | |
127 | which is rare). The value here is just a first attempt. A better default | |
128 | value may be higher or lower. A prime number can make up for a bad hash | |
129 | computation, so that's why the number is what it is. */ | |
130 | #define DEFAULT_SYMBOL_CACHE_SIZE 1021 | |
131 | ||
132 | /* The maximum symbol cache size. | |
133 | There's no method to the decision of what value to use here, other than | |
134 | there's no point in allowing a user typo to make gdb consume all memory. */ | |
135 | #define MAX_SYMBOL_CACHE_SIZE (1024*1024) | |
136 | ||
137 | /* symbol_cache_lookup returns this if a previous lookup failed to find the | |
138 | symbol in any objfile. */ | |
d12307c1 PMR |
139 | #define SYMBOL_LOOKUP_FAILED \ |
140 | ((struct block_symbol) {(struct symbol *) 1, NULL}) | |
141 | #define SYMBOL_LOOKUP_FAILED_P(SIB) (SIB.symbol == (struct symbol *) 1) | |
f57d2163 DE |
142 | |
143 | /* Recording lookups that don't find the symbol is just as important, if not | |
144 | more so, than recording found symbols. */ | |
145 | ||
146 | enum symbol_cache_slot_state | |
147 | { | |
148 | SYMBOL_SLOT_UNUSED, | |
149 | SYMBOL_SLOT_NOT_FOUND, | |
150 | SYMBOL_SLOT_FOUND | |
151 | }; | |
152 | ||
52059ffd TT |
153 | struct symbol_cache_slot |
154 | { | |
155 | enum symbol_cache_slot_state state; | |
156 | ||
157 | /* The objfile that was current when the symbol was looked up. | |
158 | This is only needed for global blocks, but for simplicity's sake | |
159 | we allocate the space for both. If data shows the extra space used | |
160 | for static blocks is a problem, we can split things up then. | |
161 | ||
162 | Global blocks need cache lookup to include the objfile context because | |
163 | we need to account for gdbarch_iterate_over_objfiles_in_search_order | |
164 | which can traverse objfiles in, effectively, any order, depending on | |
165 | the current objfile, thus affecting which symbol is found. Normally, | |
166 | only the current objfile is searched first, and then the rest are | |
167 | searched in recorded order; but putting cache lookup inside | |
168 | gdbarch_iterate_over_objfiles_in_search_order would be awkward. | |
169 | Instead we just make the current objfile part of the context of | |
170 | cache lookup. This means we can record the same symbol multiple times, | |
171 | each with a different "current objfile" that was in effect when the | |
172 | lookup was saved in the cache, but cache space is pretty cheap. */ | |
173 | const struct objfile *objfile_context; | |
174 | ||
ccf41c24 TT |
175 | /* The domain that was searched for initially. This must exactly |
176 | match. */ | |
177 | domain_search_flags domain; | |
178 | ||
52059ffd TT |
179 | union |
180 | { | |
d12307c1 | 181 | struct block_symbol found; |
ccf41c24 | 182 | char *name; |
52059ffd TT |
183 | } value; |
184 | }; | |
185 | ||
82f910ea PW |
186 | /* Clear out SLOT. */ |
187 | ||
188 | static void | |
189 | symbol_cache_clear_slot (struct symbol_cache_slot *slot) | |
190 | { | |
191 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
ccf41c24 | 192 | xfree (slot->value.name); |
82f910ea PW |
193 | slot->state = SYMBOL_SLOT_UNUSED; |
194 | } | |
195 | ||
f57d2163 DE |
196 | /* Symbols don't specify global vs static block. |
197 | So keep them in separate caches. */ | |
198 | ||
199 | struct block_symbol_cache | |
200 | { | |
201 | unsigned int hits; | |
202 | unsigned int misses; | |
203 | unsigned int collisions; | |
204 | ||
205 | /* SYMBOLS is a variable length array of this size. | |
206 | One can imagine that in general one cache (global/static) should be a | |
207 | fraction of the size of the other, but there's no data at the moment | |
208 | on which to decide. */ | |
209 | unsigned int size; | |
210 | ||
52059ffd | 211 | struct symbol_cache_slot symbols[1]; |
f57d2163 DE |
212 | }; |
213 | ||
82f910ea PW |
214 | /* Clear all slots of BSC and free BSC. */ |
215 | ||
216 | static void | |
217 | destroy_block_symbol_cache (struct block_symbol_cache *bsc) | |
218 | { | |
219 | if (bsc != nullptr) | |
220 | { | |
221 | for (unsigned int i = 0; i < bsc->size; i++) | |
222 | symbol_cache_clear_slot (&bsc->symbols[i]); | |
223 | xfree (bsc); | |
224 | } | |
225 | } | |
226 | ||
f57d2163 DE |
227 | /* The symbol cache. |
228 | ||
229 | Searching for symbols in the static and global blocks over multiple objfiles | |
230 | again and again can be slow, as can searching very big objfiles. This is a | |
231 | simple cache to improve symbol lookup performance, which is critical to | |
232 | overall gdb performance. | |
233 | ||
234 | Symbols are hashed on the name, its domain, and block. | |
235 | They are also hashed on their objfile for objfile-specific lookups. */ | |
236 | ||
237 | struct symbol_cache | |
238 | { | |
3017b94d TT |
239 | symbol_cache () = default; |
240 | ||
241 | ~symbol_cache () | |
242 | { | |
82f910ea PW |
243 | destroy_block_symbol_cache (global_symbols); |
244 | destroy_block_symbol_cache (static_symbols); | |
3017b94d TT |
245 | } |
246 | ||
247 | struct block_symbol_cache *global_symbols = nullptr; | |
248 | struct block_symbol_cache *static_symbols = nullptr; | |
f57d2163 DE |
249 | }; |
250 | ||
3017b94d TT |
251 | /* Program space key for finding its symbol cache. */ |
252 | ||
08b8a139 | 253 | static const registry<program_space>::key<symbol_cache> symbol_cache_key; |
3017b94d | 254 | |
45cfd468 | 255 | /* When non-zero, print debugging messages related to symtab creation. */ |
db0fec5c | 256 | unsigned int symtab_create_debug = 0; |
45cfd468 | 257 | |
cc485e62 DE |
258 | /* When non-zero, print debugging messages related to symbol lookup. */ |
259 | unsigned int symbol_lookup_debug = 0; | |
260 | ||
f57d2163 DE |
261 | /* The size of the cache is staged here. */ |
262 | static unsigned int new_symbol_cache_size = DEFAULT_SYMBOL_CACHE_SIZE; | |
263 | ||
264 | /* The current value of the symbol cache size. | |
265 | This is saved so that if the user enters a value too big we can restore | |
266 | the original value from here. */ | |
267 | static unsigned int symbol_cache_size = DEFAULT_SYMBOL_CACHE_SIZE; | |
268 | ||
491144b5 | 269 | /* True if a file may be known by two different basenames. |
c011a4f4 DE |
270 | This is the uncommon case, and significantly slows down gdb. |
271 | Default set to "off" to not slow down the common case. */ | |
491144b5 | 272 | bool basenames_may_differ = false; |
c011a4f4 | 273 | |
717d2f5a JB |
274 | /* Allow the user to configure the debugger behavior with respect |
275 | to multiple-choice menus when more than one symbol matches during | |
276 | a symbol lookup. */ | |
277 | ||
7fc830e2 MK |
278 | const char multiple_symbols_ask[] = "ask"; |
279 | const char multiple_symbols_all[] = "all"; | |
280 | const char multiple_symbols_cancel[] = "cancel"; | |
40478521 | 281 | static const char *const multiple_symbols_modes[] = |
717d2f5a JB |
282 | { |
283 | multiple_symbols_ask, | |
284 | multiple_symbols_all, | |
285 | multiple_symbols_cancel, | |
286 | NULL | |
287 | }; | |
288 | static const char *multiple_symbols_mode = multiple_symbols_all; | |
289 | ||
6109f7a3 LS |
290 | /* When TRUE, ignore the prologue-end flag in linetable_entry when searching |
291 | for the SAL past a function prologue. */ | |
292 | static bool ignore_prologue_end_flag = false; | |
293 | ||
717d2f5a JB |
294 | /* Read-only accessor to AUTO_SELECT_MODE. */ |
295 | ||
296 | const char * | |
297 | multiple_symbols_select_mode (void) | |
298 | { | |
299 | return multiple_symbols_mode; | |
300 | } | |
301 | ||
20c681d1 DE |
302 | /* Return the name of a domain_enum. */ |
303 | ||
304 | const char * | |
305 | domain_name (domain_enum e) | |
306 | { | |
307 | switch (e) | |
308 | { | |
6771fc6f TT |
309 | #define DOMAIN(X) \ |
310 | case X ## _DOMAIN: return #X "_DOMAIN"; | |
311 | #include "sym-domains.def" | |
312 | #undef DOMAIN | |
20c681d1 DE |
313 | default: gdb_assert_not_reached ("bad domain_enum"); |
314 | } | |
315 | } | |
316 | ||
43f3e411 | 317 | /* See symtab.h. */ |
db0fec5c | 318 | |
25f31e18 TT |
319 | std::string |
320 | domain_name (domain_search_flags flags) | |
321 | { | |
322 | static constexpr domain_search_flags::string_mapping mapping[] = { | |
323 | #define DOMAIN(X) \ | |
324 | MAP_ENUM_FLAG (SEARCH_ ## X ## _DOMAIN), | |
325 | #include "sym-domains.def" | |
326 | #undef DOMAIN | |
327 | }; | |
328 | ||
329 | return flags.to_string (mapping); | |
330 | } | |
331 | ||
332 | /* See symtab.h. */ | |
333 | ||
88ff5355 TT |
334 | domain_search_flags |
335 | from_scripting_domain (int val) | |
336 | { | |
337 | if ((val & SCRIPTING_SEARCH_FLAG) == 0) | |
338 | { | |
339 | /* VAL should be one of the domain constants. Verify this and | |
340 | convert it to a search constant. */ | |
341 | switch (val) | |
342 | { | |
343 | #define DOMAIN(X) \ | |
344 | case X ## _DOMAIN: break; | |
345 | #include "sym-domains.def" | |
346 | #undef DOMAIN | |
347 | default: | |
348 | error (_("unrecognized domain constant")); | |
349 | } | |
350 | domain_search_flags result = to_search_flags ((domain_enum) val); | |
351 | if (val == VAR_DOMAIN) | |
352 | { | |
353 | /* This matches the historical practice. */ | |
354 | result |= SEARCH_TYPE_DOMAIN | SEARCH_FUNCTION_DOMAIN; | |
355 | } | |
356 | return result; | |
357 | } | |
358 | else | |
359 | { | |
360 | /* VAL is several search constants or'd together. Verify | |
361 | this. */ | |
362 | val &= ~SCRIPTING_SEARCH_FLAG; | |
363 | int check = val; | |
364 | #define DOMAIN(X) \ | |
365 | check &= ~ (int) SEARCH_ ## X ## _DOMAIN; | |
366 | #include "sym-domains.def" | |
367 | #undef DOMAIN | |
368 | if (check != 0) | |
369 | error (_("unrecognized domain constant")); | |
370 | return (domain_search_flag) val; | |
371 | } | |
372 | } | |
373 | ||
374 | /* See symtab.h. */ | |
375 | ||
1acc9dca TT |
376 | CORE_ADDR |
377 | linetable_entry::pc (const struct objfile *objfile) const | |
378 | { | |
48e0f38c | 379 | return CORE_ADDR (m_pc) + objfile->text_section_offset (); |
1acc9dca TT |
380 | } |
381 | ||
382 | /* See symtab.h. */ | |
383 | ||
b625c770 SM |
384 | call_site * |
385 | compunit_symtab::find_call_site (CORE_ADDR pc) const | |
386 | { | |
387 | if (m_call_site_htab == nullptr) | |
388 | return nullptr; | |
389 | ||
d401e7bf | 390 | CORE_ADDR delta = this->objfile ()->text_section_offset (); |
1e73d09f | 391 | unrelocated_addr unrelocated_pc = (unrelocated_addr) (pc - delta); |
b0b8879e SM |
392 | |
393 | struct call_site call_site_local (unrelocated_pc, nullptr, nullptr); | |
0dd8295d TV |
394 | void **slot |
395 | = htab_find_slot (m_call_site_htab, &call_site_local, NO_INSERT); | |
9df25c34 TT |
396 | if (slot != nullptr) |
397 | return (call_site *) *slot; | |
398 | ||
399 | /* See if the arch knows another PC we should try. On some | |
400 | platforms, GCC emits a DWARF call site that is offset from the | |
401 | actual return location. */ | |
402 | struct gdbarch *arch = objfile ()->arch (); | |
403 | CORE_ADDR new_pc = gdbarch_update_call_site_pc (arch, pc); | |
404 | if (pc == new_pc) | |
405 | return nullptr; | |
406 | ||
1e73d09f TT |
407 | unrelocated_pc = (unrelocated_addr) (new_pc - delta); |
408 | call_site new_call_site_local (unrelocated_pc, nullptr, nullptr); | |
9df25c34 | 409 | slot = htab_find_slot (m_call_site_htab, &new_call_site_local, NO_INSERT); |
b625c770 SM |
410 | if (slot == nullptr) |
411 | return nullptr; | |
412 | ||
413 | return (call_site *) *slot; | |
414 | } | |
415 | ||
416 | /* See symtab.h. */ | |
417 | ||
418 | void | |
419 | compunit_symtab::set_call_site_htab (htab_t call_site_htab) | |
420 | { | |
421 | gdb_assert (m_call_site_htab == nullptr); | |
422 | m_call_site_htab = call_site_htab; | |
423 | } | |
424 | ||
425 | /* See symtab.h. */ | |
426 | ||
36664835 SM |
427 | void |
428 | compunit_symtab::set_primary_filetab (symtab *primary_filetab) | |
429 | { | |
430 | symtab *prev_filetab = nullptr; | |
431 | ||
432 | /* Move PRIMARY_FILETAB to the head of the filetab list. */ | |
102cc235 | 433 | for (symtab *filetab : this->filetabs ()) |
36664835 SM |
434 | { |
435 | if (filetab == primary_filetab) | |
436 | { | |
437 | if (prev_filetab != nullptr) | |
438 | { | |
439 | prev_filetab->next = primary_filetab->next; | |
102cc235 SM |
440 | primary_filetab->next = m_filetabs; |
441 | m_filetabs = primary_filetab; | |
36664835 SM |
442 | } |
443 | ||
444 | break; | |
445 | } | |
446 | ||
447 | prev_filetab = filetab; | |
448 | } | |
449 | ||
102cc235 | 450 | gdb_assert (primary_filetab == m_filetabs); |
36664835 SM |
451 | } |
452 | ||
453 | /* See symtab.h. */ | |
454 | ||
43f3e411 | 455 | struct symtab * |
0b17a4f7 | 456 | compunit_symtab::primary_filetab () const |
db0fec5c | 457 | { |
102cc235 | 458 | gdb_assert (m_filetabs != nullptr); |
db0fec5c | 459 | |
43f3e411 | 460 | /* The primary file symtab is the first one in the list. */ |
102cc235 | 461 | return m_filetabs; |
43f3e411 DE |
462 | } |
463 | ||
464 | /* See symtab.h. */ | |
465 | ||
466 | enum language | |
425d5e76 | 467 | compunit_symtab::language () const |
43f3e411 | 468 | { |
425d5e76 | 469 | struct symtab *symtab = primary_filetab (); |
43f3e411 | 470 | |
425d5e76 TT |
471 | /* The language of the compunit symtab is the language of its |
472 | primary source file. */ | |
1ee2e9f9 | 473 | return symtab->language (); |
db0fec5c DE |
474 | } |
475 | ||
4aeddc50 SM |
476 | /* The relocated address of the minimal symbol, using the section |
477 | offsets from OBJFILE. */ | |
478 | ||
479 | CORE_ADDR | |
480 | minimal_symbol::value_address (objfile *objfile) const | |
481 | { | |
62669649 | 482 | if (this->maybe_copied (objfile)) |
23e6f781 | 483 | return this->get_maybe_copied_address (objfile); |
4aeddc50 | 484 | else |
93d50cd8 | 485 | return (CORE_ADDR (this->unrelocated_address ()) |
4aeddc50 SM |
486 | + objfile->section_offsets[this->section_index ()]); |
487 | } | |
488 | ||
1ed9f74e PW |
489 | /* See symtab.h. */ |
490 | ||
491 | bool | |
492 | minimal_symbol::data_p () const | |
493 | { | |
60f62e2b SM |
494 | return m_type == mst_data |
495 | || m_type == mst_bss | |
496 | || m_type == mst_abs | |
497 | || m_type == mst_file_data | |
498 | || m_type == mst_file_bss; | |
1ed9f74e PW |
499 | } |
500 | ||
501 | /* See symtab.h. */ | |
502 | ||
503 | bool | |
504 | minimal_symbol::text_p () const | |
505 | { | |
60f62e2b SM |
506 | return m_type == mst_text |
507 | || m_type == mst_text_gnu_ifunc | |
508 | || m_type == mst_data_gnu_ifunc | |
509 | || m_type == mst_slot_got_plt | |
510 | || m_type == mst_solib_trampoline | |
511 | || m_type == mst_file_text; | |
1ed9f74e PW |
512 | } |
513 | ||
62669649 KB |
514 | /* See symtab.h. */ |
515 | ||
516 | bool | |
517 | minimal_symbol::maybe_copied (objfile *objfile) const | |
518 | { | |
519 | return (objfile->object_format_has_copy_relocs | |
520 | && (objfile->flags & OBJF_MAINLINE) == 0 | |
521 | && (m_type == mst_data || m_type == mst_bss)); | |
522 | } | |
523 | ||
4aac40c8 TT |
524 | /* See whether FILENAME matches SEARCH_NAME using the rule that we |
525 | advertise to the user. (The manual's description of linespecs | |
af529f8f JK |
526 | describes what we advertise). Returns true if they match, false |
527 | otherwise. */ | |
4aac40c8 | 528 | |
ececd218 | 529 | bool |
b57a636e | 530 | compare_filenames_for_search (const char *filename, const char *search_name) |
4aac40c8 TT |
531 | { |
532 | int len = strlen (filename); | |
b57a636e | 533 | size_t search_len = strlen (search_name); |
4aac40c8 TT |
534 | |
535 | if (len < search_len) | |
ececd218 | 536 | return false; |
4aac40c8 TT |
537 | |
538 | /* The tail of FILENAME must match. */ | |
539 | if (FILENAME_CMP (filename + len - search_len, search_name) != 0) | |
ececd218 | 540 | return false; |
4aac40c8 TT |
541 | |
542 | /* Either the names must completely match, or the character | |
543 | preceding the trailing SEARCH_NAME segment of FILENAME must be a | |
d84fca2c JK |
544 | directory separator. |
545 | ||
af529f8f JK |
546 | The check !IS_ABSOLUTE_PATH ensures SEARCH_NAME "/dir/file.c" |
547 | cannot match FILENAME "/path//dir/file.c" - as user has requested | |
548 | absolute path. The sama applies for "c:\file.c" possibly | |
549 | incorrectly hypothetically matching "d:\dir\c:\file.c". | |
550 | ||
d84fca2c JK |
551 | The HAS_DRIVE_SPEC purpose is to make FILENAME "c:file.c" |
552 | compatible with SEARCH_NAME "file.c". In such case a compiler had | |
553 | to put the "c:file.c" name into debug info. Such compatibility | |
554 | works only on GDB built for DOS host. */ | |
4aac40c8 | 555 | return (len == search_len |
af529f8f JK |
556 | || (!IS_ABSOLUTE_PATH (search_name) |
557 | && IS_DIR_SEPARATOR (filename[len - search_len - 1])) | |
4aac40c8 TT |
558 | || (HAS_DRIVE_SPEC (filename) |
559 | && STRIP_DRIVE_SPEC (filename) == &filename[len - search_len])); | |
560 | } | |
561 | ||
cce0e923 DE |
562 | /* Same as compare_filenames_for_search, but for glob-style patterns. |
563 | Heads up on the order of the arguments. They match the order of | |
564 | compare_filenames_for_search, but it's the opposite of the order of | |
565 | arguments to gdb_filename_fnmatch. */ | |
566 | ||
ececd218 | 567 | bool |
cce0e923 DE |
568 | compare_glob_filenames_for_search (const char *filename, |
569 | const char *search_name) | |
570 | { | |
571 | /* We rely on the property of glob-style patterns with FNM_FILE_NAME that | |
572 | all /s have to be explicitly specified. */ | |
573 | int file_path_elements = count_path_elements (filename); | |
574 | int search_path_elements = count_path_elements (search_name); | |
575 | ||
576 | if (search_path_elements > file_path_elements) | |
ececd218 | 577 | return false; |
cce0e923 DE |
578 | |
579 | if (IS_ABSOLUTE_PATH (search_name)) | |
580 | { | |
581 | return (search_path_elements == file_path_elements | |
582 | && gdb_filename_fnmatch (search_name, filename, | |
583 | FNM_FILE_NAME | FNM_NOESCAPE) == 0); | |
584 | } | |
585 | ||
586 | { | |
587 | const char *file_to_compare | |
588 | = strip_leading_path_elements (filename, | |
589 | file_path_elements - search_path_elements); | |
590 | ||
591 | return gdb_filename_fnmatch (search_name, file_to_compare, | |
592 | FNM_FILE_NAME | FNM_NOESCAPE) == 0; | |
593 | } | |
594 | } | |
595 | ||
f8eba3c6 TT |
596 | /* Check for a symtab of a specific name by searching some symtabs. |
597 | This is a helper function for callbacks of iterate_over_symtabs. | |
c906108c | 598 | |
b2d23133 DE |
599 | If NAME is not absolute, then REAL_PATH is NULL |
600 | If NAME is absolute, then REAL_PATH is the gdb_realpath form of NAME. | |
601 | ||
14bc53a8 PA |
602 | The return value, NAME, REAL_PATH and CALLBACK are identical to the |
603 | `map_symtabs_matching_filename' method of quick_symbol_functions. | |
f8eba3c6 | 604 | |
43f3e411 DE |
605 | FIRST and AFTER_LAST indicate the range of compunit symtabs to search. |
606 | Each symtab within the specified compunit symtab is also searched. | |
607 | AFTER_LAST is one past the last compunit symtab to search; NULL means to | |
f8eba3c6 TT |
608 | search until the end of the list. */ |
609 | ||
14bc53a8 | 610 | bool |
f8eba3c6 | 611 | iterate_over_some_symtabs (const char *name, |
f8eba3c6 | 612 | const char *real_path, |
43f3e411 | 613 | struct compunit_symtab *first, |
14bc53a8 PA |
614 | struct compunit_symtab *after_last, |
615 | gdb::function_view<bool (symtab *)> callback) | |
c906108c | 616 | { |
43f3e411 | 617 | struct compunit_symtab *cust; |
c011a4f4 | 618 | const char* base_name = lbasename (name); |
1f84b619 | 619 | |
43f3e411 | 620 | for (cust = first; cust != NULL && cust != after_last; cust = cust->next) |
f079a2e5 | 621 | { |
7023b8d8 TV |
622 | /* Skip included compunits. */ |
623 | if (cust->user != nullptr) | |
624 | continue; | |
625 | ||
102cc235 | 626 | for (symtab *s : cust->filetabs ()) |
a94e8645 | 627 | { |
43f3e411 DE |
628 | if (compare_filenames_for_search (s->filename, name)) |
629 | { | |
14bc53a8 PA |
630 | if (callback (s)) |
631 | return true; | |
43f3e411 DE |
632 | continue; |
633 | } | |
a94e8645 | 634 | |
43f3e411 DE |
635 | /* Before we invoke realpath, which can get expensive when many |
636 | files are involved, do a quick comparison of the basenames. */ | |
637 | if (! basenames_may_differ | |
638 | && FILENAME_CMP (base_name, lbasename (s->filename)) != 0) | |
639 | continue; | |
a94e8645 | 640 | |
43f3e411 | 641 | if (compare_filenames_for_search (symtab_to_fullname (s), name)) |
a94e8645 | 642 | { |
14bc53a8 PA |
643 | if (callback (s)) |
644 | return true; | |
a94e8645 DE |
645 | continue; |
646 | } | |
43f3e411 DE |
647 | |
648 | /* If the user gave us an absolute path, try to find the file in | |
649 | this symtab and use its absolute path. */ | |
650 | if (real_path != NULL) | |
651 | { | |
652 | const char *fullname = symtab_to_fullname (s); | |
653 | ||
654 | gdb_assert (IS_ABSOLUTE_PATH (real_path)); | |
655 | gdb_assert (IS_ABSOLUTE_PATH (name)); | |
7e785608 TV |
656 | gdb::unique_xmalloc_ptr<char> fullname_real_path |
657 | = gdb_realpath (fullname); | |
658 | fullname = fullname_real_path.get (); | |
43f3e411 DE |
659 | if (FILENAME_CMP (real_path, fullname) == 0) |
660 | { | |
14bc53a8 PA |
661 | if (callback (s)) |
662 | return true; | |
43f3e411 DE |
663 | continue; |
664 | } | |
665 | } | |
a94e8645 | 666 | } |
f8eba3c6 | 667 | } |
58d370e0 | 668 | |
14bc53a8 | 669 | return false; |
f8eba3c6 TT |
670 | } |
671 | ||
672 | /* Check for a symtab of a specific name; first in symtabs, then in | |
673 | psymtabs. *If* there is no '/' in the name, a match after a '/' | |
674 | in the symtab filename will also work. | |
675 | ||
14bc53a8 PA |
676 | Calls CALLBACK with each symtab that is found. If CALLBACK returns |
677 | true, the search stops. */ | |
f8eba3c6 TT |
678 | |
679 | void | |
680 | iterate_over_symtabs (const char *name, | |
14bc53a8 | 681 | gdb::function_view<bool (symtab *)> callback) |
f8eba3c6 | 682 | { |
14bc53a8 | 683 | gdb::unique_xmalloc_ptr<char> real_path; |
f8eba3c6 TT |
684 | |
685 | /* Here we are interested in canonicalizing an absolute path, not | |
686 | absolutizing a relative path. */ | |
687 | if (IS_ABSOLUTE_PATH (name)) | |
688 | { | |
14278e1f | 689 | real_path = gdb_realpath (name); |
14bc53a8 | 690 | gdb_assert (IS_ABSOLUTE_PATH (real_path.get ())); |
f8eba3c6 TT |
691 | } |
692 | ||
2030c079 | 693 | for (objfile *objfile : current_program_space->objfiles ()) |
14bc53a8 PA |
694 | { |
695 | if (iterate_over_some_symtabs (name, real_path.get (), | |
696 | objfile->compunit_symtabs, NULL, | |
697 | callback)) | |
f8eba3c6 | 698 | return; |
14bc53a8 | 699 | } |
f8eba3c6 | 700 | |
c906108c SS |
701 | /* Same search rules as above apply here, but now we look thru the |
702 | psymtabs. */ | |
703 | ||
2030c079 | 704 | for (objfile *objfile : current_program_space->objfiles ()) |
14bc53a8 | 705 | { |
4d080b46 TT |
706 | if (objfile->map_symtabs_matching_filename (name, real_path.get (), |
707 | callback)) | |
f8eba3c6 | 708 | return; |
14bc53a8 | 709 | } |
c906108c | 710 | } |
f8eba3c6 TT |
711 | |
712 | /* A wrapper for iterate_over_symtabs that returns the first matching | |
713 | symtab, or NULL. */ | |
714 | ||
715 | struct symtab * | |
716 | lookup_symtab (const char *name) | |
717 | { | |
718 | struct symtab *result = NULL; | |
719 | ||
14bc53a8 PA |
720 | iterate_over_symtabs (name, [&] (symtab *symtab) |
721 | { | |
722 | result = symtab; | |
723 | return true; | |
724 | }); | |
725 | ||
f8eba3c6 TT |
726 | return result; |
727 | } | |
728 | ||
c906108c SS |
729 | \f |
730 | /* Mangle a GDB method stub type. This actually reassembles the pieces of the | |
731 | full method name, which consist of the class name (from T), the unadorned | |
732 | method name from METHOD_ID, and the signature for the specific overload, | |
c378eb4e | 733 | specified by SIGNATURE_ID. Note that this function is g++ specific. */ |
c906108c SS |
734 | |
735 | char * | |
fba45db2 | 736 | gdb_mangle_name (struct type *type, int method_id, int signature_id) |
c906108c SS |
737 | { |
738 | int mangled_name_len; | |
739 | char *mangled_name; | |
740 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
741 | struct fn_field *method = &f[signature_id]; | |
0d5cff50 | 742 | const char *field_name = TYPE_FN_FIELDLIST_NAME (type, method_id); |
1d06ead6 | 743 | const char *physname = TYPE_FN_FIELD_PHYSNAME (f, signature_id); |
7d93a1e0 | 744 | const char *newname = type->name (); |
c906108c SS |
745 | |
746 | /* Does the form of physname indicate that it is the full mangled name | |
747 | of a constructor (not just the args)? */ | |
748 | int is_full_physname_constructor; | |
749 | ||
750 | int is_constructor; | |
015a42b4 | 751 | int is_destructor = is_destructor_name (physname); |
c906108c | 752 | /* Need a new type prefix. */ |
e6a959d6 PA |
753 | const char *const_prefix = method->is_const ? "C" : ""; |
754 | const char *volatile_prefix = method->is_volatile ? "V" : ""; | |
c906108c SS |
755 | char buf[20]; |
756 | int len = (newname == NULL ? 0 : strlen (newname)); | |
757 | ||
43630227 PS |
758 | /* Nothing to do if physname already contains a fully mangled v3 abi name |
759 | or an operator name. */ | |
760 | if ((physname[0] == '_' && physname[1] == 'Z') | |
761 | || is_operator_name (field_name)) | |
235d1e03 EZ |
762 | return xstrdup (physname); |
763 | ||
015a42b4 | 764 | is_full_physname_constructor = is_constructor_name (physname); |
c906108c | 765 | |
3e43a32a MS |
766 | is_constructor = is_full_physname_constructor |
767 | || (newname && strcmp (field_name, newname) == 0); | |
c906108c SS |
768 | |
769 | if (!is_destructor) | |
61012eef | 770 | is_destructor = (startswith (physname, "__dt")); |
c906108c SS |
771 | |
772 | if (is_destructor || is_full_physname_constructor) | |
773 | { | |
c5aa993b JM |
774 | mangled_name = (char *) xmalloc (strlen (physname) + 1); |
775 | strcpy (mangled_name, physname); | |
c906108c SS |
776 | return mangled_name; |
777 | } | |
778 | ||
779 | if (len == 0) | |
780 | { | |
8c042590 | 781 | xsnprintf (buf, sizeof (buf), "__%s%s", const_prefix, volatile_prefix); |
c906108c SS |
782 | } |
783 | else if (physname[0] == 't' || physname[0] == 'Q') | |
784 | { | |
785 | /* The physname for template and qualified methods already includes | |
dda83cd7 | 786 | the class name. */ |
8c042590 | 787 | xsnprintf (buf, sizeof (buf), "__%s%s", const_prefix, volatile_prefix); |
c906108c SS |
788 | newname = NULL; |
789 | len = 0; | |
790 | } | |
791 | else | |
792 | { | |
8c042590 PM |
793 | xsnprintf (buf, sizeof (buf), "__%s%s%d", const_prefix, |
794 | volatile_prefix, len); | |
c906108c SS |
795 | } |
796 | mangled_name_len = ((is_constructor ? 0 : strlen (field_name)) | |
235d1e03 | 797 | + strlen (buf) + len + strlen (physname) + 1); |
c906108c | 798 | |
433759f7 MS |
799 | mangled_name = (char *) xmalloc (mangled_name_len); |
800 | if (is_constructor) | |
801 | mangled_name[0] = '\0'; | |
802 | else | |
803 | strcpy (mangled_name, field_name); | |
804 | ||
c906108c SS |
805 | strcat (mangled_name, buf); |
806 | /* If the class doesn't have a name, i.e. newname NULL, then we just | |
807 | mangle it using 0 for the length of the class. Thus it gets mangled | |
c378eb4e | 808 | as something starting with `::' rather than `classname::'. */ |
c906108c SS |
809 | if (newname != NULL) |
810 | strcat (mangled_name, newname); | |
811 | ||
812 | strcat (mangled_name, physname); | |
813 | return (mangled_name); | |
814 | } | |
12af6855 | 815 | |
ff985671 | 816 | /* See symtab.h. */ |
eca864fe | 817 | |
b250c185 | 818 | void |
ff985671 TT |
819 | general_symbol_info::set_demangled_name (const char *name, |
820 | struct obstack *obstack) | |
b250c185 | 821 | { |
ff985671 | 822 | if (language () == language_ada) |
f85f34ed TT |
823 | { |
824 | if (name == NULL) | |
825 | { | |
ff985671 TT |
826 | ada_mangled = 0; |
827 | language_specific.obstack = obstack; | |
f85f34ed TT |
828 | } |
829 | else | |
830 | { | |
ff985671 TT |
831 | ada_mangled = 1; |
832 | language_specific.demangled_name = name; | |
f85f34ed TT |
833 | } |
834 | } | |
29df156d | 835 | else |
ff985671 | 836 | language_specific.demangled_name = name; |
b250c185 SW |
837 | } |
838 | ||
12af6855 | 839 | \f |
89aad1f9 | 840 | /* Initialize the language dependent portion of a symbol |
c378eb4e | 841 | depending upon the language for the symbol. */ |
eca864fe | 842 | |
89aad1f9 | 843 | void |
d3ecddab CB |
844 | general_symbol_info::set_language (enum language language, |
845 | struct obstack *obstack) | |
89aad1f9 | 846 | { |
d3ecddab | 847 | m_language = language; |
c1b5c1eb CB |
848 | if (language == language_cplus |
849 | || language == language_d | |
850 | || language == language_go | |
851 | || language == language_objc | |
852 | || language == language_fortran) | |
89aad1f9 | 853 | { |
ff985671 | 854 | set_demangled_name (NULL, obstack); |
f85f34ed | 855 | } |
c1b5c1eb | 856 | else if (language == language_ada) |
f85f34ed | 857 | { |
d3ecddab CB |
858 | gdb_assert (ada_mangled == 0); |
859 | language_specific.obstack = obstack; | |
89aad1f9 | 860 | } |
89aad1f9 EZ |
861 | else |
862 | { | |
d3ecddab | 863 | memset (&language_specific, 0, sizeof (language_specific)); |
89aad1f9 EZ |
864 | } |
865 | } | |
866 | ||
2de7ced7 DJ |
867 | /* Functions to initialize a symbol's mangled name. */ |
868 | ||
04a679b8 TT |
869 | /* Objects of this type are stored in the demangled name hash table. */ |
870 | struct demangled_name_entry | |
871 | { | |
8082468f | 872 | demangled_name_entry (std::string_view mangled_name) |
3a494279 CB |
873 | : mangled (mangled_name) {} |
874 | ||
8082468f | 875 | std::string_view mangled; |
403772ef | 876 | enum language language; |
5396ae17 | 877 | gdb::unique_xmalloc_ptr<char> demangled; |
04a679b8 TT |
878 | }; |
879 | ||
880 | /* Hash function for the demangled name hash. */ | |
eca864fe | 881 | |
04a679b8 TT |
882 | static hashval_t |
883 | hash_demangled_name_entry (const void *data) | |
884 | { | |
19ba03f4 SM |
885 | const struct demangled_name_entry *e |
886 | = (const struct demangled_name_entry *) data; | |
433759f7 | 887 | |
1a8605a8 | 888 | return gdb::string_view_hash () (e->mangled); |
04a679b8 TT |
889 | } |
890 | ||
891 | /* Equality function for the demangled name hash. */ | |
eca864fe | 892 | |
04a679b8 TT |
893 | static int |
894 | eq_demangled_name_entry (const void *a, const void *b) | |
895 | { | |
19ba03f4 SM |
896 | const struct demangled_name_entry *da |
897 | = (const struct demangled_name_entry *) a; | |
898 | const struct demangled_name_entry *db | |
899 | = (const struct demangled_name_entry *) b; | |
433759f7 | 900 | |
7bb43059 | 901 | return da->mangled == db->mangled; |
04a679b8 TT |
902 | } |
903 | ||
3a494279 CB |
904 | static void |
905 | free_demangled_name_entry (void *data) | |
906 | { | |
907 | struct demangled_name_entry *e | |
908 | = (struct demangled_name_entry *) data; | |
909 | ||
910 | e->~demangled_name_entry(); | |
911 | } | |
912 | ||
2de7ced7 DJ |
913 | /* Create the hash table used for demangled names. Each hash entry is |
914 | a pair of strings; one for the mangled name and one for the demangled | |
915 | name. The entry is hashed via just the mangled name. */ | |
916 | ||
917 | static void | |
0f14768a | 918 | create_demangled_names_hash (struct objfile_per_bfd_storage *per_bfd) |
2de7ced7 DJ |
919 | { |
920 | /* Choose 256 as the starting size of the hash table, somewhat arbitrarily. | |
9af17804 | 921 | The hash table code will round this up to the next prime number. |
2de7ced7 | 922 | Choosing a much larger table size wastes memory, and saves only about |
f8bab2d6 CB |
923 | 1% in symbol reading. However, if the minsym count is already |
924 | initialized (e.g. because symbol name setting was deferred to | |
925 | a background thread) we can initialize the hashtable with a count | |
926 | based on that, because we will almost certainly have at least that | |
927 | many entries. If we have a nonzero number but less than 256, | |
928 | we still stay with 256 to have some space for psymbols, etc. */ | |
929 | ||
930 | /* htab will expand the table when it is 3/4th full, so we account for that | |
931 | here. +2 to round up. */ | |
932 | int minsym_based_count = (per_bfd->minimal_symbol_count + 2) / 3 * 4; | |
933 | int count = std::max (per_bfd->minimal_symbol_count, minsym_based_count); | |
2de7ced7 | 934 | |
db92718b | 935 | per_bfd->demangled_names_hash.reset (htab_create_alloc |
f8bab2d6 | 936 | (count, hash_demangled_name_entry, eq_demangled_name_entry, |
3a494279 | 937 | free_demangled_name_entry, xcalloc, xfree)); |
2de7ced7 | 938 | } |
12af6855 | 939 | |
d55c9a68 | 940 | /* See symtab.h */ |
12af6855 | 941 | |
3456e70c | 942 | gdb::unique_xmalloc_ptr<char> |
2de7ced7 DJ |
943 | symbol_find_demangled_name (struct general_symbol_info *gsymbol, |
944 | const char *mangled) | |
12af6855 | 945 | { |
3456e70c | 946 | gdb::unique_xmalloc_ptr<char> demangled; |
8b302db8 | 947 | int i; |
12af6855 | 948 | |
129bce36 | 949 | if (gsymbol->language () != language_unknown) |
1bae87b9 | 950 | { |
c1b5c1eb | 951 | const struct language_defn *lang = language_def (gsymbol->language ()); |
8b302db8 | 952 | |
6f827019 | 953 | lang->sniff_from_mangled_name (mangled, &demangled); |
8b302db8 | 954 | return demangled; |
6aecb9c2 | 955 | } |
8b302db8 TT |
956 | |
957 | for (i = language_unknown; i < nr_languages; ++i) | |
a766d390 | 958 | { |
8b302db8 TT |
959 | enum language l = (enum language) i; |
960 | const struct language_defn *lang = language_def (l); | |
961 | ||
6f827019 | 962 | if (lang->sniff_from_mangled_name (mangled, &demangled)) |
a766d390 | 963 | { |
c1b5c1eb | 964 | gsymbol->m_language = l; |
a766d390 DE |
965 | return demangled; |
966 | } | |
967 | } | |
968 | ||
2de7ced7 DJ |
969 | return NULL; |
970 | } | |
971 | ||
980cae7a | 972 | /* Set both the mangled and demangled (if any) names for GSYMBOL based |
04a679b8 TT |
973 | on LINKAGE_NAME and LEN. Ordinarily, NAME is copied onto the |
974 | objfile's obstack; but if COPY_NAME is 0 and if NAME is | |
975 | NUL-terminated, then this function assumes that NAME is already | |
976 | correctly saved (either permanently or with a lifetime tied to the | |
977 | objfile), and it will not be copied. | |
978 | ||
979 | The hash table corresponding to OBJFILE is used, and the memory | |
84a1243b | 980 | comes from the per-BFD storage_obstack. LINKAGE_NAME is copied, |
04a679b8 | 981 | so the pointer can be discarded after calling this function. */ |
2de7ced7 DJ |
982 | |
983 | void | |
8082468f | 984 | general_symbol_info::compute_and_set_names (std::string_view linkage_name, |
4d4eaa30 CB |
985 | bool copy_name, |
986 | objfile_per_bfd_storage *per_bfd, | |
6b09f134 | 987 | std::optional<hashval_t> hash) |
2de7ced7 | 988 | { |
04a679b8 | 989 | struct demangled_name_entry **slot; |
2de7ced7 | 990 | |
4d4eaa30 | 991 | if (language () == language_ada) |
b06ead72 JB |
992 | { |
993 | /* In Ada, we do the symbol lookups using the mangled name, so | |
dda83cd7 | 994 | we can save some space by not storing the demangled name. */ |
92174eea | 995 | if (!copy_name) |
4d4eaa30 | 996 | m_name = linkage_name.data (); |
04a679b8 | 997 | else |
869d8950 TT |
998 | m_name = obstack_strndup (&per_bfd->storage_obstack, |
999 | linkage_name.data (), | |
1000 | linkage_name.length ()); | |
ff985671 | 1001 | set_demangled_name (NULL, &per_bfd->storage_obstack); |
b06ead72 JB |
1002 | |
1003 | return; | |
1004 | } | |
1005 | ||
84a1243b | 1006 | if (per_bfd->demangled_names_hash == NULL) |
0f14768a | 1007 | create_demangled_names_hash (per_bfd); |
04a679b8 | 1008 | |
31edb802 | 1009 | struct demangled_name_entry entry (linkage_name); |
e76b2246 CB |
1010 | if (!hash.has_value ()) |
1011 | hash = hash_demangled_name_entry (&entry); | |
04a679b8 | 1012 | slot = ((struct demangled_name_entry **) |
dda83cd7 | 1013 | htab_find_slot_with_hash (per_bfd->demangled_names_hash.get (), |
e76b2246 | 1014 | &entry, *hash, INSERT)); |
2de7ced7 | 1015 | |
57d75002 CB |
1016 | /* The const_cast is safe because the only reason it is already |
1017 | initialized is if we purposefully set it from a background | |
1018 | thread to avoid doing the work here. However, it is still | |
1019 | allocated from the heap and needs to be freed by us, just | |
1020 | like if we called symbol_find_demangled_name here. If this is | |
1021 | nullptr, we call symbol_find_demangled_name below, but we put | |
1022 | this smart pointer here to be sure that we don't leak this name. */ | |
1023 | gdb::unique_xmalloc_ptr<char> demangled_name | |
1024 | (const_cast<char *> (language_specific.demangled_name)); | |
1025 | ||
2de7ced7 | 1026 | /* If this name is not in the hash table, add it. */ |
a766d390 DE |
1027 | if (*slot == NULL |
1028 | /* A C version of the symbol may have already snuck into the table. | |
1029 | This happens to, e.g., main.init (__go_init_main). Cope. */ | |
4d4eaa30 | 1030 | || (language () == language_go && (*slot)->demangled == nullptr)) |
2de7ced7 | 1031 | { |
0c921b21 | 1032 | /* A 0-terminated copy of the linkage name. Callers must set COPY_NAME |
dda83cd7 SM |
1033 | to true if the string might not be nullterminated. We have to make |
1034 | this copy because demangling needs a nullterminated string. */ | |
8082468f | 1035 | std::string_view linkage_name_copy; |
0c921b21 CB |
1036 | if (copy_name) |
1037 | { | |
31edb802 CB |
1038 | char *alloc_name = (char *) alloca (linkage_name.length () + 1); |
1039 | memcpy (alloc_name, linkage_name.data (), linkage_name.length ()); | |
1040 | alloc_name[linkage_name.length ()] = '\0'; | |
0c921b21 | 1041 | |
8082468f | 1042 | linkage_name_copy = std::string_view (alloc_name, |
31edb802 | 1043 | linkage_name.length ()); |
0c921b21 CB |
1044 | } |
1045 | else | |
1046 | linkage_name_copy = linkage_name; | |
1047 | ||
57d75002 | 1048 | if (demangled_name.get () == nullptr) |
3456e70c TT |
1049 | demangled_name |
1050 | = symbol_find_demangled_name (this, linkage_name_copy.data ()); | |
2de7ced7 | 1051 | |
04a679b8 | 1052 | /* Suppose we have demangled_name==NULL, copy_name==0, and |
9c37b5ae | 1053 | linkage_name_copy==linkage_name. In this case, we already have the |
04a679b8 TT |
1054 | mangled name saved, and we don't have a demangled name. So, |
1055 | you might think we could save a little space by not recording | |
1056 | this in the hash table at all. | |
5396ae17 | 1057 | |
04a679b8 TT |
1058 | It turns out that it is actually important to still save such |
1059 | an entry in the hash table, because storing this name gives | |
705b5767 | 1060 | us better bcache hit rates for partial symbols. */ |
0c921b21 | 1061 | if (!copy_name) |
04a679b8 | 1062 | { |
224c3ddb SM |
1063 | *slot |
1064 | = ((struct demangled_name_entry *) | |
1065 | obstack_alloc (&per_bfd->storage_obstack, | |
5396ae17 | 1066 | sizeof (demangled_name_entry))); |
31edb802 | 1067 | new (*slot) demangled_name_entry (linkage_name); |
04a679b8 TT |
1068 | } |
1069 | else | |
1070 | { | |
1071 | /* If we must copy the mangled name, put it directly after | |
5396ae17 | 1072 | the struct so we can have a single allocation. */ |
224c3ddb SM |
1073 | *slot |
1074 | = ((struct demangled_name_entry *) | |
1075 | obstack_alloc (&per_bfd->storage_obstack, | |
31edb802 CB |
1076 | sizeof (demangled_name_entry) |
1077 | + linkage_name.length () + 1)); | |
5396ae17 | 1078 | char *mangled_ptr = reinterpret_cast<char *> (*slot + 1); |
31edb802 CB |
1079 | memcpy (mangled_ptr, linkage_name.data (), linkage_name.length ()); |
1080 | mangled_ptr [linkage_name.length ()] = '\0'; | |
3a494279 | 1081 | new (*slot) demangled_name_entry |
8082468f | 1082 | (std::string_view (mangled_ptr, linkage_name.length ())); |
04a679b8 | 1083 | } |
d55c9a68 | 1084 | (*slot)->demangled = std::move (demangled_name); |
4d4eaa30 | 1085 | (*slot)->language = language (); |
2de7ced7 | 1086 | } |
129bce36 | 1087 | else if (language () == language_unknown) |
4d4eaa30 | 1088 | m_language = (*slot)->language; |
2de7ced7 | 1089 | |
4d4eaa30 | 1090 | m_name = (*slot)->mangled.data (); |
ff985671 | 1091 | set_demangled_name ((*slot)->demangled.get (), &per_bfd->storage_obstack); |
2de7ced7 DJ |
1092 | } |
1093 | ||
c9d95fa3 | 1094 | /* See symtab.h. */ |
22abf04a | 1095 | |
0d5cff50 | 1096 | const char * |
c9d95fa3 | 1097 | general_symbol_info::natural_name () const |
22abf04a | 1098 | { |
c1b5c1eb | 1099 | switch (language ()) |
22abf04a | 1100 | { |
1f8173e6 | 1101 | case language_cplus: |
6aecb9c2 | 1102 | case language_d: |
a766d390 | 1103 | case language_go: |
1f8173e6 | 1104 | case language_objc: |
f55ee35c | 1105 | case language_fortran: |
8c87a452 | 1106 | case language_rust: |
7151c1af TT |
1107 | if (language_specific.demangled_name != nullptr) |
1108 | return language_specific.demangled_name; | |
1f8173e6 PH |
1109 | break; |
1110 | case language_ada: | |
c9d95fa3 | 1111 | return ada_decode_symbol (this); |
1f8173e6 PH |
1112 | default: |
1113 | break; | |
22abf04a | 1114 | } |
4d4eaa30 | 1115 | return linkage_name (); |
22abf04a DC |
1116 | } |
1117 | ||
c9d95fa3 | 1118 | /* See symtab.h. */ |
eca864fe | 1119 | |
0d5cff50 | 1120 | const char * |
c9d95fa3 | 1121 | general_symbol_info::demangled_name () const |
9cc0d196 | 1122 | { |
c6e5ee5e SDJ |
1123 | const char *dem_name = NULL; |
1124 | ||
c1b5c1eb | 1125 | switch (language ()) |
1f8173e6 PH |
1126 | { |
1127 | case language_cplus: | |
6aecb9c2 | 1128 | case language_d: |
a766d390 | 1129 | case language_go: |
1f8173e6 | 1130 | case language_objc: |
f55ee35c | 1131 | case language_fortran: |
8c87a452 | 1132 | case language_rust: |
7151c1af | 1133 | dem_name = language_specific.demangled_name; |
1f8173e6 PH |
1134 | break; |
1135 | case language_ada: | |
c9d95fa3 | 1136 | dem_name = ada_decode_symbol (this); |
1f8173e6 PH |
1137 | break; |
1138 | default: | |
1139 | break; | |
1140 | } | |
c6e5ee5e | 1141 | return dem_name; |
9cc0d196 | 1142 | } |
fe39c653 | 1143 | |
c9d95fa3 | 1144 | /* See symtab.h. */ |
eca864fe | 1145 | |
0d5cff50 | 1146 | const char * |
c9d95fa3 | 1147 | general_symbol_info::search_name () const |
fc062ac6 | 1148 | { |
c1b5c1eb | 1149 | if (language () == language_ada) |
4d4eaa30 | 1150 | return linkage_name (); |
1f8173e6 | 1151 | else |
c9d95fa3 | 1152 | return natural_name (); |
4725b721 | 1153 | } |
b5ec771e PA |
1154 | |
1155 | /* See symtab.h. */ | |
1156 | ||
ebbc3a7d AB |
1157 | struct obj_section * |
1158 | general_symbol_info::obj_section (const struct objfile *objfile) const | |
1159 | { | |
a52d653e | 1160 | if (section_index () >= 0) |
9ed8433a | 1161 | return &objfile->sections_start[section_index ()]; |
ebbc3a7d AB |
1162 | return nullptr; |
1163 | } | |
1164 | ||
1165 | /* See symtab.h. */ | |
1166 | ||
b5ec771e PA |
1167 | bool |
1168 | symbol_matches_search_name (const struct general_symbol_info *gsymbol, | |
1169 | const lookup_name_info &name) | |
1170 | { | |
1171 | symbol_name_matcher_ftype *name_match | |
c9debfb9 | 1172 | = language_def (gsymbol->language ())->get_symbol_name_matcher (name); |
c9d95fa3 | 1173 | return name_match (gsymbol->search_name (), name, NULL); |
b5ec771e PA |
1174 | } |
1175 | ||
c906108c SS |
1176 | \f |
1177 | ||
ececd218 | 1178 | /* Return true if the two sections are the same, or if they could |
94277a38 DJ |
1179 | plausibly be copies of each other, one in an original object |
1180 | file and another in a separated debug file. */ | |
1181 | ||
ececd218 | 1182 | bool |
714835d5 UW |
1183 | matching_obj_sections (struct obj_section *obj_first, |
1184 | struct obj_section *obj_second) | |
94277a38 | 1185 | { |
714835d5 UW |
1186 | asection *first = obj_first? obj_first->the_bfd_section : NULL; |
1187 | asection *second = obj_second? obj_second->the_bfd_section : NULL; | |
94277a38 DJ |
1188 | |
1189 | /* If they're the same section, then they match. */ | |
1190 | if (first == second) | |
ececd218 | 1191 | return true; |
94277a38 DJ |
1192 | |
1193 | /* If either is NULL, give up. */ | |
1194 | if (first == NULL || second == NULL) | |
ececd218 | 1195 | return false; |
94277a38 DJ |
1196 | |
1197 | /* This doesn't apply to absolute symbols. */ | |
1198 | if (first->owner == NULL || second->owner == NULL) | |
ececd218 | 1199 | return false; |
94277a38 DJ |
1200 | |
1201 | /* If they're in the same object file, they must be different sections. */ | |
1202 | if (first->owner == second->owner) | |
ececd218 | 1203 | return false; |
94277a38 DJ |
1204 | |
1205 | /* Check whether the two sections are potentially corresponding. They must | |
1206 | have the same size, address, and name. We can't compare section indexes, | |
1207 | which would be more reliable, because some sections may have been | |
1208 | stripped. */ | |
fd361982 | 1209 | if (bfd_section_size (first) != bfd_section_size (second)) |
ececd218 | 1210 | return false; |
94277a38 | 1211 | |
818f79f6 | 1212 | /* In-memory addresses may start at a different offset, relativize them. */ |
fd361982 AM |
1213 | if (bfd_section_vma (first) - bfd_get_start_address (first->owner) |
1214 | != bfd_section_vma (second) - bfd_get_start_address (second->owner)) | |
ececd218 | 1215 | return false; |
94277a38 | 1216 | |
fd361982 AM |
1217 | if (bfd_section_name (first) == NULL |
1218 | || bfd_section_name (second) == NULL | |
1219 | || strcmp (bfd_section_name (first), bfd_section_name (second)) != 0) | |
ececd218 | 1220 | return false; |
94277a38 DJ |
1221 | |
1222 | /* Otherwise check that they are in corresponding objfiles. */ | |
1223 | ||
9d7c67bf | 1224 | struct objfile *obj = NULL; |
2030c079 | 1225 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
1226 | if (objfile->obfd == first->owner) |
1227 | { | |
1228 | obj = objfile; | |
1229 | break; | |
1230 | } | |
94277a38 DJ |
1231 | gdb_assert (obj != NULL); |
1232 | ||
1233 | if (obj->separate_debug_objfile != NULL | |
1234 | && obj->separate_debug_objfile->obfd == second->owner) | |
ececd218 | 1235 | return true; |
94277a38 DJ |
1236 | if (obj->separate_debug_objfile_backlink != NULL |
1237 | && obj->separate_debug_objfile_backlink->obfd == second->owner) | |
ececd218 | 1238 | return true; |
94277a38 | 1239 | |
ececd218 | 1240 | return false; |
94277a38 | 1241 | } |
c906108c | 1242 | \f |
f57d2163 DE |
1243 | /* Hash function for the symbol cache. */ |
1244 | ||
1245 | static unsigned int | |
1246 | hash_symbol_entry (const struct objfile *objfile_context, | |
ccf41c24 | 1247 | const char *name, domain_search_flags domain) |
f57d2163 DE |
1248 | { |
1249 | unsigned int hash = (uintptr_t) objfile_context; | |
1250 | ||
1251 | if (name != NULL) | |
1252 | hash += htab_hash_string (name); | |
1253 | ||
ccf41c24 | 1254 | hash += domain * 7; |
f57d2163 DE |
1255 | |
1256 | return hash; | |
1257 | } | |
1258 | ||
1259 | /* Equality function for the symbol cache. */ | |
1260 | ||
1261 | static int | |
1262 | eq_symbol_entry (const struct symbol_cache_slot *slot, | |
1263 | const struct objfile *objfile_context, | |
ccf41c24 | 1264 | const char *name, domain_search_flags domain) |
f57d2163 DE |
1265 | { |
1266 | const char *slot_name; | |
f57d2163 DE |
1267 | |
1268 | if (slot->state == SYMBOL_SLOT_UNUSED) | |
1269 | return 0; | |
1270 | ||
1271 | if (slot->objfile_context != objfile_context) | |
1272 | return 0; | |
1273 | ||
ccf41c24 | 1274 | domain_search_flags slot_domain = slot->domain; |
f57d2163 | 1275 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) |
ccf41c24 | 1276 | slot_name = slot->value.name; |
f57d2163 | 1277 | else |
ccf41c24 | 1278 | slot_name = slot->value.found.symbol->search_name (); |
f57d2163 DE |
1279 | |
1280 | /* NULL names match. */ | |
1281 | if (slot_name == NULL && name == NULL) | |
1282 | { | |
1283 | /* But there's no point in calling symbol_matches_domain in the | |
1284 | SYMBOL_SLOT_FOUND case. */ | |
1285 | if (slot_domain != domain) | |
1286 | return 0; | |
1287 | } | |
1288 | else if (slot_name != NULL && name != NULL) | |
1289 | { | |
b5ec771e PA |
1290 | /* It's important that we use the same comparison that was done |
1291 | the first time through. If the slot records a found symbol, | |
1292 | then this means using the symbol name comparison function of | |
987012b8 | 1293 | the symbol's language with symbol->search_name (). See |
ccf41c24 | 1294 | dictionary.c. |
f57d2163 DE |
1295 | |
1296 | If the slot records a not-found symbol, then require a precise match. | |
1297 | We could still be lax with whitespace like strcmp_iw though. */ | |
1298 | ||
ccf41c24 TT |
1299 | if (slot_domain != domain) |
1300 | return 0; | |
1301 | ||
f57d2163 DE |
1302 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) |
1303 | { | |
1304 | if (strcmp (slot_name, name) != 0) | |
1305 | return 0; | |
f57d2163 DE |
1306 | } |
1307 | else | |
1308 | { | |
d12307c1 | 1309 | struct symbol *sym = slot->value.found.symbol; |
b5ec771e | 1310 | lookup_name_info lookup_name (name, symbol_name_match_type::FULL); |
f57d2163 | 1311 | |
81e32b6a | 1312 | if (!symbol_matches_search_name (sym, lookup_name)) |
f57d2163 | 1313 | return 0; |
f57d2163 DE |
1314 | } |
1315 | } | |
1316 | else | |
1317 | { | |
1318 | /* Only one name is NULL. */ | |
1319 | return 0; | |
1320 | } | |
1321 | ||
1322 | return 1; | |
1323 | } | |
1324 | ||
1325 | /* Given a cache of size SIZE, return the size of the struct (with variable | |
1326 | length array) in bytes. */ | |
1327 | ||
1328 | static size_t | |
1329 | symbol_cache_byte_size (unsigned int size) | |
1330 | { | |
1331 | return (sizeof (struct block_symbol_cache) | |
1332 | + ((size - 1) * sizeof (struct symbol_cache_slot))); | |
1333 | } | |
1334 | ||
1335 | /* Resize CACHE. */ | |
1336 | ||
1337 | static void | |
1338 | resize_symbol_cache (struct symbol_cache *cache, unsigned int new_size) | |
1339 | { | |
1340 | /* If there's no change in size, don't do anything. | |
1341 | All caches have the same size, so we can just compare with the size | |
1342 | of the global symbols cache. */ | |
1343 | if ((cache->global_symbols != NULL | |
1344 | && cache->global_symbols->size == new_size) | |
1345 | || (cache->global_symbols == NULL | |
1346 | && new_size == 0)) | |
1347 | return; | |
1348 | ||
82f910ea PW |
1349 | destroy_block_symbol_cache (cache->global_symbols); |
1350 | destroy_block_symbol_cache (cache->static_symbols); | |
f57d2163 DE |
1351 | |
1352 | if (new_size == 0) | |
1353 | { | |
1354 | cache->global_symbols = NULL; | |
1355 | cache->static_symbols = NULL; | |
1356 | } | |
1357 | else | |
1358 | { | |
1359 | size_t total_size = symbol_cache_byte_size (new_size); | |
1360 | ||
224c3ddb SM |
1361 | cache->global_symbols |
1362 | = (struct block_symbol_cache *) xcalloc (1, total_size); | |
1363 | cache->static_symbols | |
1364 | = (struct block_symbol_cache *) xcalloc (1, total_size); | |
f57d2163 DE |
1365 | cache->global_symbols->size = new_size; |
1366 | cache->static_symbols->size = new_size; | |
1367 | } | |
1368 | } | |
1369 | ||
f57d2163 DE |
1370 | /* Return the symbol cache of PSPACE. |
1371 | Create one if it doesn't exist yet. */ | |
1372 | ||
1373 | static struct symbol_cache * | |
1374 | get_symbol_cache (struct program_space *pspace) | |
1375 | { | |
3017b94d | 1376 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 DE |
1377 | |
1378 | if (cache == NULL) | |
1379 | { | |
3017b94d TT |
1380 | cache = symbol_cache_key.emplace (pspace); |
1381 | resize_symbol_cache (cache, symbol_cache_size); | |
f57d2163 DE |
1382 | } |
1383 | ||
1384 | return cache; | |
1385 | } | |
1386 | ||
f57d2163 DE |
1387 | /* Set the size of the symbol cache in all program spaces. */ |
1388 | ||
1389 | static void | |
1390 | set_symbol_cache_size (unsigned int new_size) | |
1391 | { | |
94c93c35 | 1392 | for (struct program_space *pspace : program_spaces) |
f57d2163 | 1393 | { |
3017b94d | 1394 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 DE |
1395 | |
1396 | /* The pspace could have been created but not have a cache yet. */ | |
1397 | if (cache != NULL) | |
1398 | resize_symbol_cache (cache, new_size); | |
1399 | } | |
1400 | } | |
1401 | ||
1402 | /* Called when symbol-cache-size is set. */ | |
1403 | ||
1404 | static void | |
eb4c3f4a | 1405 | set_symbol_cache_size_handler (const char *args, int from_tty, |
f57d2163 DE |
1406 | struct cmd_list_element *c) |
1407 | { | |
1408 | if (new_symbol_cache_size > MAX_SYMBOL_CACHE_SIZE) | |
1409 | { | |
1410 | /* Restore the previous value. | |
1411 | This is the value the "show" command prints. */ | |
1412 | new_symbol_cache_size = symbol_cache_size; | |
1413 | ||
1414 | error (_("Symbol cache size is too large, max is %u."), | |
1415 | MAX_SYMBOL_CACHE_SIZE); | |
1416 | } | |
1417 | symbol_cache_size = new_symbol_cache_size; | |
1418 | ||
1419 | set_symbol_cache_size (symbol_cache_size); | |
1420 | } | |
1421 | ||
1422 | /* Lookup symbol NAME,DOMAIN in BLOCK in the symbol cache of PSPACE. | |
1423 | OBJFILE_CONTEXT is the current objfile, which may be NULL. | |
1424 | The result is the symbol if found, SYMBOL_LOOKUP_FAILED if a previous lookup | |
1425 | failed (and thus this one will too), or NULL if the symbol is not present | |
1426 | in the cache. | |
d0509ba4 CB |
1427 | *BSC_PTR and *SLOT_PTR are set to the cache and slot of the symbol, which |
1428 | can be used to save the result of a full lookup attempt. */ | |
f57d2163 | 1429 | |
d12307c1 | 1430 | static struct block_symbol |
f57d2163 | 1431 | symbol_cache_lookup (struct symbol_cache *cache, |
ddbcedf5 | 1432 | struct objfile *objfile_context, enum block_enum block, |
ccf41c24 | 1433 | const char *name, domain_search_flags domain, |
f57d2163 DE |
1434 | struct block_symbol_cache **bsc_ptr, |
1435 | struct symbol_cache_slot **slot_ptr) | |
1436 | { | |
1437 | struct block_symbol_cache *bsc; | |
1438 | unsigned int hash; | |
1439 | struct symbol_cache_slot *slot; | |
1440 | ||
1441 | if (block == GLOBAL_BLOCK) | |
1442 | bsc = cache->global_symbols; | |
1443 | else | |
1444 | bsc = cache->static_symbols; | |
1445 | if (bsc == NULL) | |
1446 | { | |
1447 | *bsc_ptr = NULL; | |
1448 | *slot_ptr = NULL; | |
6640a367 | 1449 | return {}; |
f57d2163 DE |
1450 | } |
1451 | ||
1452 | hash = hash_symbol_entry (objfile_context, name, domain); | |
1453 | slot = bsc->symbols + hash % bsc->size; | |
f57d2163 | 1454 | |
d0509ba4 CB |
1455 | *bsc_ptr = bsc; |
1456 | *slot_ptr = slot; | |
1457 | ||
f57d2163 DE |
1458 | if (eq_symbol_entry (slot, objfile_context, name, domain)) |
1459 | { | |
b1e678d9 AB |
1460 | symbol_lookup_debug_printf ("%s block symbol cache hit%s for %s, %s", |
1461 | block == GLOBAL_BLOCK ? "Global" : "Static", | |
1462 | slot->state == SYMBOL_SLOT_NOT_FOUND | |
1463 | ? " (not found)" : "", name, | |
ccf41c24 | 1464 | domain_name (domain).c_str ()); |
f57d2163 DE |
1465 | ++bsc->hits; |
1466 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
1467 | return SYMBOL_LOOKUP_FAILED; | |
1468 | return slot->value.found; | |
1469 | } | |
1470 | ||
2c26b84f DE |
1471 | /* Symbol is not present in the cache. */ |
1472 | ||
b1e678d9 AB |
1473 | symbol_lookup_debug_printf ("%s block symbol cache miss for %s, %s", |
1474 | block == GLOBAL_BLOCK ? "Global" : "Static", | |
ccf41c24 | 1475 | name, domain_name (domain).c_str ()); |
f57d2163 | 1476 | ++bsc->misses; |
6640a367 | 1477 | return {}; |
f57d2163 DE |
1478 | } |
1479 | ||
f57d2163 DE |
1480 | /* Mark SYMBOL as found in SLOT. |
1481 | OBJFILE_CONTEXT is the current objfile when the lookup was done, or NULL | |
1482 | if it's not needed to distinguish lookups (STATIC_BLOCK). It is *not* | |
1483 | necessarily the objfile the symbol was found in. */ | |
1484 | ||
1485 | static void | |
1486 | symbol_cache_mark_found (struct block_symbol_cache *bsc, | |
1487 | struct symbol_cache_slot *slot, | |
1488 | struct objfile *objfile_context, | |
d12307c1 | 1489 | struct symbol *symbol, |
ccf41c24 TT |
1490 | const struct block *block, |
1491 | domain_search_flags domain) | |
f57d2163 DE |
1492 | { |
1493 | if (bsc == NULL) | |
1494 | return; | |
1495 | if (slot->state != SYMBOL_SLOT_UNUSED) | |
1496 | { | |
1497 | ++bsc->collisions; | |
1498 | symbol_cache_clear_slot (slot); | |
1499 | } | |
1500 | slot->state = SYMBOL_SLOT_FOUND; | |
1501 | slot->objfile_context = objfile_context; | |
d12307c1 PMR |
1502 | slot->value.found.symbol = symbol; |
1503 | slot->value.found.block = block; | |
ccf41c24 | 1504 | slot->domain = domain; |
f57d2163 DE |
1505 | } |
1506 | ||
1507 | /* Mark symbol NAME, DOMAIN as not found in SLOT. | |
1508 | OBJFILE_CONTEXT is the current objfile when the lookup was done, or NULL | |
1509 | if it's not needed to distinguish lookups (STATIC_BLOCK). */ | |
1510 | ||
1511 | static void | |
1512 | symbol_cache_mark_not_found (struct block_symbol_cache *bsc, | |
1513 | struct symbol_cache_slot *slot, | |
1514 | struct objfile *objfile_context, | |
ccf41c24 | 1515 | const char *name, domain_search_flags domain) |
f57d2163 DE |
1516 | { |
1517 | if (bsc == NULL) | |
1518 | return; | |
1519 | if (slot->state != SYMBOL_SLOT_UNUSED) | |
1520 | { | |
1521 | ++bsc->collisions; | |
1522 | symbol_cache_clear_slot (slot); | |
1523 | } | |
1524 | slot->state = SYMBOL_SLOT_NOT_FOUND; | |
1525 | slot->objfile_context = objfile_context; | |
ccf41c24 TT |
1526 | slot->value.name = xstrdup (name); |
1527 | slot->domain = domain; | |
f57d2163 DE |
1528 | } |
1529 | ||
1530 | /* Flush the symbol cache of PSPACE. */ | |
1531 | ||
1532 | static void | |
1533 | symbol_cache_flush (struct program_space *pspace) | |
1534 | { | |
3017b94d | 1535 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 | 1536 | int pass; |
f57d2163 DE |
1537 | |
1538 | if (cache == NULL) | |
1539 | return; | |
1540 | if (cache->global_symbols == NULL) | |
1541 | { | |
1542 | gdb_assert (symbol_cache_size == 0); | |
1543 | gdb_assert (cache->static_symbols == NULL); | |
1544 | return; | |
1545 | } | |
1546 | ||
1547 | /* If the cache is untouched since the last flush, early exit. | |
1548 | This is important for performance during the startup of a program linked | |
1549 | with 100s (or 1000s) of shared libraries. */ | |
1550 | if (cache->global_symbols->misses == 0 | |
1551 | && cache->static_symbols->misses == 0) | |
1552 | return; | |
1553 | ||
1554 | gdb_assert (cache->global_symbols->size == symbol_cache_size); | |
1555 | gdb_assert (cache->static_symbols->size == symbol_cache_size); | |
1556 | ||
1557 | for (pass = 0; pass < 2; ++pass) | |
1558 | { | |
1559 | struct block_symbol_cache *bsc | |
1560 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1561 | unsigned int i; | |
1562 | ||
1563 | for (i = 0; i < bsc->size; ++i) | |
1564 | symbol_cache_clear_slot (&bsc->symbols[i]); | |
1565 | } | |
1566 | ||
1567 | cache->global_symbols->hits = 0; | |
1568 | cache->global_symbols->misses = 0; | |
1569 | cache->global_symbols->collisions = 0; | |
1570 | cache->static_symbols->hits = 0; | |
1571 | cache->static_symbols->misses = 0; | |
1572 | cache->static_symbols->collisions = 0; | |
1573 | } | |
1574 | ||
1575 | /* Dump CACHE. */ | |
1576 | ||
1577 | static void | |
1578 | symbol_cache_dump (const struct symbol_cache *cache) | |
1579 | { | |
1580 | int pass; | |
1581 | ||
1582 | if (cache->global_symbols == NULL) | |
1583 | { | |
6cb06a8c | 1584 | gdb_printf (" <disabled>\n"); |
f57d2163 DE |
1585 | return; |
1586 | } | |
1587 | ||
1588 | for (pass = 0; pass < 2; ++pass) | |
1589 | { | |
1590 | const struct block_symbol_cache *bsc | |
1591 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1592 | unsigned int i; | |
1593 | ||
1594 | if (pass == 0) | |
6cb06a8c | 1595 | gdb_printf ("Global symbols:\n"); |
f57d2163 | 1596 | else |
6cb06a8c | 1597 | gdb_printf ("Static symbols:\n"); |
f57d2163 DE |
1598 | |
1599 | for (i = 0; i < bsc->size; ++i) | |
1600 | { | |
1601 | const struct symbol_cache_slot *slot = &bsc->symbols[i]; | |
1602 | ||
1603 | QUIT; | |
1604 | ||
1605 | switch (slot->state) | |
1606 | { | |
1607 | case SYMBOL_SLOT_UNUSED: | |
1608 | break; | |
1609 | case SYMBOL_SLOT_NOT_FOUND: | |
6cb06a8c TT |
1610 | gdb_printf (" [%4u] = %s, %s %s (not found)\n", i, |
1611 | host_address_to_string (slot->objfile_context), | |
ccf41c24 TT |
1612 | slot->value.name, |
1613 | domain_name (slot->domain).c_str ()); | |
f57d2163 DE |
1614 | break; |
1615 | case SYMBOL_SLOT_FOUND: | |
d12307c1 PMR |
1616 | { |
1617 | struct symbol *found = slot->value.found.symbol; | |
1618 | const struct objfile *context = slot->objfile_context; | |
1619 | ||
6cb06a8c TT |
1620 | gdb_printf (" [%4u] = %s, %s %s\n", i, |
1621 | host_address_to_string (context), | |
1622 | found->print_name (), | |
1623 | domain_name (found->domain ())); | |
d12307c1 PMR |
1624 | break; |
1625 | } | |
f57d2163 DE |
1626 | } |
1627 | } | |
1628 | } | |
1629 | } | |
1630 | ||
1631 | /* The "mt print symbol-cache" command. */ | |
1632 | ||
1633 | static void | |
510e5e56 | 1634 | maintenance_print_symbol_cache (const char *args, int from_tty) |
f57d2163 | 1635 | { |
94c93c35 | 1636 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1637 | { |
1638 | struct symbol_cache *cache; | |
1639 | ||
6cb06a8c TT |
1640 | gdb_printf (_("Symbol cache for pspace %d\n%s:\n"), |
1641 | pspace->num, | |
1642 | pspace->symfile_object_file != NULL | |
1643 | ? objfile_name (pspace->symfile_object_file) | |
1644 | : "(no object file)"); | |
f57d2163 DE |
1645 | |
1646 | /* If the cache hasn't been created yet, avoid creating one. */ | |
3017b94d | 1647 | cache = symbol_cache_key.get (pspace); |
f57d2163 | 1648 | if (cache == NULL) |
6cb06a8c | 1649 | gdb_printf (" <empty>\n"); |
f57d2163 DE |
1650 | else |
1651 | symbol_cache_dump (cache); | |
1652 | } | |
1653 | } | |
1654 | ||
1655 | /* The "mt flush-symbol-cache" command. */ | |
1656 | ||
1657 | static void | |
510e5e56 | 1658 | maintenance_flush_symbol_cache (const char *args, int from_tty) |
f57d2163 | 1659 | { |
94c93c35 | 1660 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1661 | { |
1662 | symbol_cache_flush (pspace); | |
1663 | } | |
1664 | } | |
1665 | ||
1666 | /* Print usage statistics of CACHE. */ | |
1667 | ||
1668 | static void | |
1669 | symbol_cache_stats (struct symbol_cache *cache) | |
1670 | { | |
1671 | int pass; | |
1672 | ||
1673 | if (cache->global_symbols == NULL) | |
1674 | { | |
6cb06a8c | 1675 | gdb_printf (" <disabled>\n"); |
f57d2163 DE |
1676 | return; |
1677 | } | |
1678 | ||
1679 | for (pass = 0; pass < 2; ++pass) | |
1680 | { | |
1681 | const struct block_symbol_cache *bsc | |
1682 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1683 | ||
1684 | QUIT; | |
1685 | ||
1686 | if (pass == 0) | |
6cb06a8c | 1687 | gdb_printf ("Global block cache stats:\n"); |
f57d2163 | 1688 | else |
6cb06a8c | 1689 | gdb_printf ("Static block cache stats:\n"); |
f57d2163 | 1690 | |
6cb06a8c TT |
1691 | gdb_printf (" size: %u\n", bsc->size); |
1692 | gdb_printf (" hits: %u\n", bsc->hits); | |
1693 | gdb_printf (" misses: %u\n", bsc->misses); | |
1694 | gdb_printf (" collisions: %u\n", bsc->collisions); | |
f57d2163 DE |
1695 | } |
1696 | } | |
1697 | ||
1698 | /* The "mt print symbol-cache-statistics" command. */ | |
1699 | ||
1700 | static void | |
510e5e56 | 1701 | maintenance_print_symbol_cache_statistics (const char *args, int from_tty) |
f57d2163 | 1702 | { |
94c93c35 | 1703 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1704 | { |
1705 | struct symbol_cache *cache; | |
1706 | ||
6cb06a8c TT |
1707 | gdb_printf (_("Symbol cache statistics for pspace %d\n%s:\n"), |
1708 | pspace->num, | |
1709 | pspace->symfile_object_file != NULL | |
1710 | ? objfile_name (pspace->symfile_object_file) | |
1711 | : "(no object file)"); | |
f57d2163 DE |
1712 | |
1713 | /* If the cache hasn't been created yet, avoid creating one. */ | |
3017b94d | 1714 | cache = symbol_cache_key.get (pspace); |
f57d2163 | 1715 | if (cache == NULL) |
6cb06a8c | 1716 | gdb_printf (" empty, no stats available\n"); |
f57d2163 DE |
1717 | else |
1718 | symbol_cache_stats (cache); | |
1719 | } | |
1720 | } | |
1721 | ||
1722 | /* This module's 'new_objfile' observer. */ | |
1723 | ||
1724 | static void | |
1725 | symtab_new_objfile_observer (struct objfile *objfile) | |
1726 | { | |
74daa597 SM |
1727 | symbol_cache_flush (objfile->pspace); |
1728 | } | |
1729 | ||
1730 | /* This module's 'all_objfiles_removed' observer. */ | |
1731 | ||
1732 | static void | |
1733 | symtab_all_objfiles_removed (program_space *pspace) | |
1734 | { | |
1735 | symbol_cache_flush (pspace); | |
a0a031bc | 1736 | |
74daa597 SM |
1737 | /* Forget everything we know about the main function. */ |
1738 | set_main_name (pspace, nullptr, language_unknown); | |
f57d2163 DE |
1739 | } |
1740 | ||
1741 | /* This module's 'free_objfile' observer. */ | |
1742 | ||
1743 | static void | |
1744 | symtab_free_objfile_observer (struct objfile *objfile) | |
1745 | { | |
1746 | symbol_cache_flush (objfile->pspace); | |
1747 | } | |
1748 | \f | |
49c1de0e | 1749 | /* See symtab.h. */ |
3f01c12b | 1750 | |
49c1de0e TT |
1751 | void |
1752 | fixup_symbol_section (struct symbol *sym, struct objfile *objfile) | |
c906108c | 1753 | { |
49c1de0e TT |
1754 | gdb_assert (sym != nullptr); |
1755 | gdb_assert (sym->is_objfile_owned ()); | |
1756 | gdb_assert (objfile != nullptr); | |
1757 | gdb_assert (sym->section_index () == -1); | |
1758 | ||
1759 | /* Note that if this ends up as -1, fixup_section will handle that | |
1760 | reasonably well. So, it's fine to use the objfile's section | |
1761 | index without doing the check that is done by the wrapper macros | |
1762 | like SECT_OFF_TEXT. */ | |
1763 | int fallback; | |
1764 | switch (sym->aclass ()) | |
1765 | { | |
1766 | case LOC_STATIC: | |
1767 | fallback = objfile->sect_index_data; | |
1768 | break; | |
1769 | ||
1770 | case LOC_LABEL: | |
1771 | fallback = objfile->sect_index_text; | |
1772 | break; | |
1773 | ||
1774 | default: | |
1775 | /* Nothing else will be listed in the minsyms -- no use looking | |
1776 | it up. */ | |
1777 | return; | |
1778 | } | |
1779 | ||
1780 | CORE_ADDR addr = sym->value_address (); | |
1781 | ||
c906108c | 1782 | struct minimal_symbol *msym; |
c906108c | 1783 | |
bccdca4a UW |
1784 | /* First, check whether a minimal symbol with the same name exists |
1785 | and points to the same address. The address check is required | |
1786 | e.g. on PowerPC64, where the minimal symbol for a function will | |
1787 | point to the function descriptor, while the debug symbol will | |
1788 | point to the actual function code. */ | |
49c1de0e | 1789 | msym = lookup_minimal_symbol_by_pc_name (addr, sym->linkage_name (), |
4d4eaa30 | 1790 | objfile); |
907fc202 | 1791 | if (msym) |
49c1de0e | 1792 | sym->set_section_index (msym->section_index ()); |
907fc202 | 1793 | else |
19e2d14b KB |
1794 | { |
1795 | /* Static, function-local variables do appear in the linker | |
1796 | (minimal) symbols, but are frequently given names that won't | |
1797 | be found via lookup_minimal_symbol(). E.g., it has been | |
1798 | observed in frv-uclinux (ELF) executables that a static, | |
1799 | function-local variable named "foo" might appear in the | |
1800 | linker symbols as "foo.6" or "foo.3". Thus, there is no | |
1801 | point in attempting to extend the lookup-by-name mechanism to | |
1802 | handle this case due to the fact that there can be multiple | |
1803 | names. | |
9af17804 | 1804 | |
19e2d14b KB |
1805 | So, instead, search the section table when lookup by name has |
1806 | failed. The ``addr'' and ``endaddr'' fields may have already | |
6a053cb1 TT |
1807 | been relocated. If so, the relocation offset needs to be |
1808 | subtracted from these values when performing the comparison. | |
1809 | We unconditionally subtract it, because, when no relocation | |
1810 | has been performed, the value will simply be zero. | |
9af17804 | 1811 | |
19e2d14b KB |
1812 | The address of the symbol whose section we're fixing up HAS |
1813 | NOT BEEN adjusted (relocated) yet. It can't have been since | |
1814 | the section isn't yet known and knowing the section is | |
1815 | necessary in order to add the correct relocation value. In | |
1816 | other words, we wouldn't even be in this function (attempting | |
1817 | to compute the section) if it were already known. | |
1818 | ||
1819 | Note that it is possible to search the minimal symbols | |
1820 | (subtracting the relocation value if necessary) to find the | |
1821 | matching minimal symbol, but this is overkill and much less | |
1822 | efficient. It is not necessary to find the matching minimal | |
9af17804 DE |
1823 | symbol, only its section. |
1824 | ||
19e2d14b KB |
1825 | Note that this technique (of doing a section table search) |
1826 | can fail when unrelocated section addresses overlap. For | |
1827 | this reason, we still attempt a lookup by name prior to doing | |
1828 | a search of the section table. */ | |
9af17804 | 1829 | |
5250cbc8 | 1830 | for (obj_section *s : objfile->sections ()) |
19e2d14b | 1831 | { |
49c1de0e TT |
1832 | if ((bfd_section_flags (s->the_bfd_section) & SEC_ALLOC) == 0) |
1833 | continue; | |
1834 | ||
9ed8433a | 1835 | int idx = s - objfile->sections_start; |
6a053cb1 | 1836 | CORE_ADDR offset = objfile->section_offsets[idx]; |
19e2d14b | 1837 | |
e27d198c TT |
1838 | if (fallback == -1) |
1839 | fallback = idx; | |
1840 | ||
0c1bcd23 | 1841 | if (s->addr () - offset <= addr && addr < s->endaddr () - offset) |
19e2d14b | 1842 | { |
49c1de0e | 1843 | sym->set_section_index (idx); |
19e2d14b KB |
1844 | return; |
1845 | } | |
1846 | } | |
e27d198c TT |
1847 | |
1848 | /* If we didn't find the section, assume it is in the first | |
1849 | section. If there is no allocated section, then it hardly | |
1850 | matters what we pick, so just pick zero. */ | |
1851 | if (fallback == -1) | |
49c1de0e | 1852 | sym->set_section_index (0); |
e27d198c | 1853 | else |
49c1de0e | 1854 | sym->set_section_index (fallback); |
19e2d14b | 1855 | } |
c906108c SS |
1856 | } |
1857 | ||
b5ec771e PA |
1858 | /* See symtab.h. */ |
1859 | ||
1860 | demangle_for_lookup_info::demangle_for_lookup_info | |
1861 | (const lookup_name_info &lookup_name, language lang) | |
1862 | { | |
1863 | demangle_result_storage storage; | |
1864 | ||
c62446b1 PA |
1865 | if (lookup_name.ignore_parameters () && lang == language_cplus) |
1866 | { | |
1867 | gdb::unique_xmalloc_ptr<char> without_params | |
e0802d59 | 1868 | = cp_remove_params_if_any (lookup_name.c_str (), |
c62446b1 PA |
1869 | lookup_name.completion_mode ()); |
1870 | ||
1871 | if (without_params != NULL) | |
1872 | { | |
de63c46b PA |
1873 | if (lookup_name.match_type () != symbol_name_match_type::SEARCH_NAME) |
1874 | m_demangled_name = demangle_for_lookup (without_params.get (), | |
1875 | lang, storage); | |
c62446b1 PA |
1876 | return; |
1877 | } | |
1878 | } | |
1879 | ||
de63c46b | 1880 | if (lookup_name.match_type () == symbol_name_match_type::SEARCH_NAME) |
e0802d59 | 1881 | m_demangled_name = lookup_name.c_str (); |
de63c46b | 1882 | else |
e0802d59 | 1883 | m_demangled_name = demangle_for_lookup (lookup_name.c_str (), |
de63c46b | 1884 | lang, storage); |
b5ec771e PA |
1885 | } |
1886 | ||
1887 | /* See symtab.h. */ | |
1888 | ||
1889 | const lookup_name_info & | |
1890 | lookup_name_info::match_any () | |
1891 | { | |
1892 | /* Lookup any symbol that "" would complete. I.e., this matches all | |
1893 | symbol names. */ | |
e0802d59 | 1894 | static const lookup_name_info lookup_name ("", symbol_name_match_type::FULL, |
b5ec771e PA |
1895 | true); |
1896 | ||
1897 | return lookup_name; | |
1898 | } | |
1899 | ||
f8eba3c6 | 1900 | /* Compute the demangled form of NAME as used by the various symbol |
2f408ecb PA |
1901 | lookup functions. The result can either be the input NAME |
1902 | directly, or a pointer to a buffer owned by the STORAGE object. | |
f8eba3c6 | 1903 | |
2f408ecb | 1904 | For Ada, this function just returns NAME, unmodified. |
f8eba3c6 TT |
1905 | Normally, Ada symbol lookups are performed using the encoded name |
1906 | rather than the demangled name, and so it might seem to make sense | |
1907 | for this function to return an encoded version of NAME. | |
1908 | Unfortunately, we cannot do this, because this function is used in | |
1909 | circumstances where it is not appropriate to try to encode NAME. | |
1910 | For instance, when displaying the frame info, we demangle the name | |
1911 | of each parameter, and then perform a symbol lookup inside our | |
1912 | function using that demangled name. In Ada, certain functions | |
1913 | have internally-generated parameters whose name contain uppercase | |
1914 | characters. Encoding those name would result in those uppercase | |
1915 | characters to become lowercase, and thus cause the symbol lookup | |
1916 | to fail. */ | |
c906108c | 1917 | |
2f408ecb | 1918 | const char * |
f8eba3c6 | 1919 | demangle_for_lookup (const char *name, enum language lang, |
2f408ecb | 1920 | demangle_result_storage &storage) |
c906108c | 1921 | { |
9c37b5ae | 1922 | /* If we are using C++, D, or Go, demangle the name before doing a |
c378eb4e | 1923 | lookup, so we can always binary search. */ |
53c5240f | 1924 | if (lang == language_cplus) |
729051e6 | 1925 | { |
3456e70c TT |
1926 | gdb::unique_xmalloc_ptr<char> demangled_name |
1927 | = gdb_demangle (name, DMGL_ANSI | DMGL_PARAMS); | |
2f408ecb | 1928 | if (demangled_name != NULL) |
3456e70c | 1929 | return storage.set_malloc_ptr (std::move (demangled_name)); |
2f408ecb PA |
1930 | |
1931 | /* If we were given a non-mangled name, canonicalize it | |
1932 | according to the language (so far only for C++). */ | |
596dc4ad TT |
1933 | gdb::unique_xmalloc_ptr<char> canon = cp_canonicalize_string (name); |
1934 | if (canon != nullptr) | |
1935 | return storage.set_malloc_ptr (std::move (canon)); | |
729051e6 | 1936 | } |
6aecb9c2 JB |
1937 | else if (lang == language_d) |
1938 | { | |
3456e70c | 1939 | gdb::unique_xmalloc_ptr<char> demangled_name = d_demangle (name, 0); |
2f408ecb | 1940 | if (demangled_name != NULL) |
3456e70c | 1941 | return storage.set_malloc_ptr (std::move (demangled_name)); |
6aecb9c2 | 1942 | } |
a766d390 DE |
1943 | else if (lang == language_go) |
1944 | { | |
3456e70c | 1945 | gdb::unique_xmalloc_ptr<char> demangled_name |
82fc57fd | 1946 | = language_def (language_go)->demangle_symbol (name, 0); |
2f408ecb | 1947 | if (demangled_name != NULL) |
3456e70c | 1948 | return storage.set_malloc_ptr (std::move (demangled_name)); |
a766d390 | 1949 | } |
729051e6 | 1950 | |
2f408ecb | 1951 | return name; |
f8eba3c6 TT |
1952 | } |
1953 | ||
5ffa0793 PA |
1954 | /* See symtab.h. */ |
1955 | ||
1956 | unsigned int | |
1957 | search_name_hash (enum language language, const char *search_name) | |
1958 | { | |
fb8006fd | 1959 | return language_def (language)->search_name_hash (search_name); |
5ffa0793 PA |
1960 | } |
1961 | ||
cf901d3b | 1962 | /* See symtab.h. |
f8eba3c6 | 1963 | |
cf901d3b | 1964 | This function (or rather its subordinates) have a bunch of loops and |
7e082072 DE |
1965 | it would seem to be attractive to put in some QUIT's (though I'm not really |
1966 | sure whether it can run long enough to be really important). But there | |
f8eba3c6 | 1967 | are a few calls for which it would appear to be bad news to quit |
7e082072 | 1968 | out of here: e.g., find_proc_desc in alpha-mdebug-tdep.c. (Note |
f8eba3c6 TT |
1969 | that there is C++ code below which can error(), but that probably |
1970 | doesn't affect these calls since they are looking for a known | |
1971 | variable and thus can probably assume it will never hit the C++ | |
1972 | code). */ | |
1973 | ||
d12307c1 | 1974 | struct block_symbol |
f8eba3c6 | 1975 | lookup_symbol_in_language (const char *name, const struct block *block, |
ccf41c24 TT |
1976 | const domain_search_flags domain, |
1977 | enum language lang, | |
1993b719 | 1978 | struct field_of_this_result *is_a_field_of_this) |
f8eba3c6 | 1979 | { |
2698da26 AB |
1980 | SYMBOL_LOOKUP_SCOPED_DEBUG_ENTER_EXIT; |
1981 | ||
2f408ecb PA |
1982 | demangle_result_storage storage; |
1983 | const char *modified_name = demangle_for_lookup (name, lang, storage); | |
f8eba3c6 | 1984 | |
de63c46b PA |
1985 | return lookup_symbol_aux (modified_name, |
1986 | symbol_name_match_type::FULL, | |
1987 | block, domain, lang, | |
2f408ecb | 1988 | is_a_field_of_this); |
fba7f19c EZ |
1989 | } |
1990 | ||
cf901d3b | 1991 | /* See symtab.h. */ |
53c5240f | 1992 | |
d12307c1 | 1993 | struct block_symbol |
53c5240f | 1994 | lookup_symbol (const char *name, const struct block *block, |
ccf41c24 | 1995 | domain_search_flags domain, |
1993b719 | 1996 | struct field_of_this_result *is_a_field_of_this) |
53c5240f PA |
1997 | { |
1998 | return lookup_symbol_in_language (name, block, domain, | |
1999 | current_language->la_language, | |
2570f2b7 | 2000 | is_a_field_of_this); |
53c5240f PA |
2001 | } |
2002 | ||
cf901d3b | 2003 | /* See symtab.h. */ |
66a17cb6 | 2004 | |
de63c46b PA |
2005 | struct block_symbol |
2006 | lookup_symbol_search_name (const char *search_name, const struct block *block, | |
ccf41c24 | 2007 | domain_search_flags domain) |
de63c46b PA |
2008 | { |
2009 | return lookup_symbol_aux (search_name, symbol_name_match_type::SEARCH_NAME, | |
2010 | block, domain, language_asm, NULL); | |
2011 | } | |
2012 | ||
2013 | /* See symtab.h. */ | |
2014 | ||
d12307c1 | 2015 | struct block_symbol |
66a17cb6 TT |
2016 | lookup_language_this (const struct language_defn *lang, |
2017 | const struct block *block) | |
2018 | { | |
5bae7c4e | 2019 | if (lang->name_of_this () == NULL || block == NULL) |
6640a367 | 2020 | return {}; |
66a17cb6 | 2021 | |
b1e678d9 AB |
2022 | symbol_lookup_debug_printf_v ("lookup_language_this (%s, %s (objfile %s))", |
2023 | lang->name (), host_address_to_string (block), | |
46baa3c6 | 2024 | objfile_debug_name (block->objfile ())); |
cc485e62 | 2025 | |
03de6823 | 2026 | while (block) |
66a17cb6 TT |
2027 | { |
2028 | struct symbol *sym; | |
2029 | ||
5bae7c4e | 2030 | sym = block_lookup_symbol (block, lang->name_of_this (), |
de63c46b | 2031 | symbol_name_match_type::SEARCH_NAME, |
ccf41c24 | 2032 | SEARCH_VFT); |
66a17cb6 | 2033 | if (sym != NULL) |
f149aabd | 2034 | { |
b1e678d9 AB |
2035 | symbol_lookup_debug_printf_v |
2036 | ("lookup_language_this (...) = %s (%s, block %s)", | |
2037 | sym->print_name (), host_address_to_string (sym), | |
2038 | host_address_to_string (block)); | |
d12307c1 | 2039 | return (struct block_symbol) {sym, block}; |
f149aabd | 2040 | } |
6c00f721 | 2041 | if (block->function ()) |
03de6823 | 2042 | break; |
f135fe72 | 2043 | block = block->superblock (); |
66a17cb6 | 2044 | } |
03de6823 | 2045 | |
b1e678d9 | 2046 | symbol_lookup_debug_printf_v ("lookup_language_this (...) = NULL"); |
6640a367 | 2047 | return {}; |
66a17cb6 TT |
2048 | } |
2049 | ||
2dc3df72 TT |
2050 | /* Given TYPE, a structure/union, |
2051 | return 1 if the component named NAME from the ultimate target | |
2052 | structure/union is defined, otherwise, return 0. */ | |
2053 | ||
2054 | static int | |
1993b719 TT |
2055 | check_field (struct type *type, const char *name, |
2056 | struct field_of_this_result *is_a_field_of_this) | |
2dc3df72 TT |
2057 | { |
2058 | int i; | |
2059 | ||
2060 | /* The type may be a stub. */ | |
f168693b | 2061 | type = check_typedef (type); |
2dc3df72 | 2062 | |
1f704f76 | 2063 | for (i = type->num_fields () - 1; i >= TYPE_N_BASECLASSES (type); i--) |
2dc3df72 | 2064 | { |
33d16dd9 | 2065 | const char *t_field_name = type->field (i).name (); |
2dc3df72 TT |
2066 | |
2067 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) | |
1993b719 TT |
2068 | { |
2069 | is_a_field_of_this->type = type; | |
ceacbf6e | 2070 | is_a_field_of_this->field = &type->field (i); |
1993b719 TT |
2071 | return 1; |
2072 | } | |
2dc3df72 TT |
2073 | } |
2074 | ||
2075 | /* C++: If it was not found as a data field, then try to return it | |
2076 | as a pointer to a method. */ | |
2077 | ||
2078 | for (i = TYPE_NFN_FIELDS (type) - 1; i >= 0; --i) | |
2079 | { | |
2080 | if (strcmp_iw (TYPE_FN_FIELDLIST_NAME (type, i), name) == 0) | |
1993b719 TT |
2081 | { |
2082 | is_a_field_of_this->type = type; | |
2083 | is_a_field_of_this->fn_field = &TYPE_FN_FIELDLIST (type, i); | |
2084 | return 1; | |
2085 | } | |
2dc3df72 TT |
2086 | } |
2087 | ||
2088 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1993b719 | 2089 | if (check_field (TYPE_BASECLASS (type, i), name, is_a_field_of_this)) |
2dc3df72 TT |
2090 | return 1; |
2091 | ||
2092 | return 0; | |
2093 | } | |
2094 | ||
53c5240f | 2095 | /* Behave like lookup_symbol except that NAME is the natural name |
7e082072 | 2096 | (e.g., demangled name) of the symbol that we're looking for. */ |
5ad1c190 | 2097 | |
d12307c1 | 2098 | static struct block_symbol |
de63c46b PA |
2099 | lookup_symbol_aux (const char *name, symbol_name_match_type match_type, |
2100 | const struct block *block, | |
ccf41c24 | 2101 | const domain_search_flags domain, enum language language, |
1993b719 | 2102 | struct field_of_this_result *is_a_field_of_this) |
fba7f19c | 2103 | { |
2698da26 AB |
2104 | SYMBOL_LOOKUP_SCOPED_DEBUG_ENTER_EXIT; |
2105 | ||
d12307c1 | 2106 | struct block_symbol result; |
53c5240f | 2107 | const struct language_defn *langdef; |
406bc4de | 2108 | |
cc485e62 DE |
2109 | if (symbol_lookup_debug) |
2110 | { | |
d6bc0792 | 2111 | struct objfile *objfile = (block == nullptr |
46baa3c6 | 2112 | ? nullptr : block->objfile ()); |
cc485e62 | 2113 | |
b1e678d9 AB |
2114 | symbol_lookup_debug_printf |
2115 | ("demangled symbol name = \"%s\", block @ %s (objfile %s)", | |
2116 | name, host_address_to_string (block), | |
2117 | objfile != NULL ? objfile_debug_name (objfile) : "NULL"); | |
2118 | symbol_lookup_debug_printf | |
2119 | ("domain name = \"%s\", language = \"%s\")", | |
ccf41c24 | 2120 | domain_name (domain).c_str (), language_str (language)); |
cc485e62 DE |
2121 | } |
2122 | ||
9a146a11 EZ |
2123 | /* Make sure we do something sensible with is_a_field_of_this, since |
2124 | the callers that set this parameter to some non-null value will | |
1993b719 TT |
2125 | certainly use it later. If we don't set it, the contents of |
2126 | is_a_field_of_this are undefined. */ | |
9a146a11 | 2127 | if (is_a_field_of_this != NULL) |
1993b719 | 2128 | memset (is_a_field_of_this, 0, sizeof (*is_a_field_of_this)); |
9a146a11 | 2129 | |
e4051eeb DC |
2130 | /* Search specified block and its superiors. Don't search |
2131 | STATIC_BLOCK or GLOBAL_BLOCK. */ | |
c906108c | 2132 | |
de63c46b | 2133 | result = lookup_local_symbol (name, match_type, block, domain, language); |
d12307c1 | 2134 | if (result.symbol != NULL) |
cc485e62 | 2135 | { |
b1e678d9 AB |
2136 | symbol_lookup_debug_printf |
2137 | ("found symbol @ %s (using lookup_local_symbol)", | |
2138 | host_address_to_string (result.symbol)); | |
d12307c1 | 2139 | return result; |
cc485e62 | 2140 | } |
c906108c | 2141 | |
53c5240f | 2142 | /* If requested to do so by the caller and if appropriate for LANGUAGE, |
13387711 | 2143 | check to see if NAME is a field of `this'. */ |
53c5240f PA |
2144 | |
2145 | langdef = language_def (language); | |
5f9a71c3 | 2146 | |
6592e36f TT |
2147 | /* Don't do this check if we are searching for a struct. It will |
2148 | not be found by check_field, but will be found by other | |
2149 | means. */ | |
ccf41c24 | 2150 | if (is_a_field_of_this != NULL && (domain & SEARCH_STRUCT_DOMAIN) == 0) |
c906108c | 2151 | { |
d12307c1 | 2152 | result = lookup_language_this (langdef, block); |
2b2d9e11 | 2153 | |
d12307c1 | 2154 | if (result.symbol) |
c906108c | 2155 | { |
5f9c5a63 | 2156 | struct type *t = result.symbol->type (); |
9af17804 | 2157 | |
2b2d9e11 VP |
2158 | /* I'm not really sure that type of this can ever |
2159 | be typedefed; just be safe. */ | |
f168693b | 2160 | t = check_typedef (t); |
809f3be1 | 2161 | if (t->is_pointer_or_reference ()) |
27710edb | 2162 | t = t->target_type (); |
9af17804 | 2163 | |
78134374 SM |
2164 | if (t->code () != TYPE_CODE_STRUCT |
2165 | && t->code () != TYPE_CODE_UNION) | |
9af17804 | 2166 | error (_("Internal error: `%s' is not an aggregate"), |
5bae7c4e | 2167 | langdef->name_of_this ()); |
9af17804 | 2168 | |
1993b719 | 2169 | if (check_field (t, name, is_a_field_of_this)) |
cc485e62 | 2170 | { |
b1e678d9 | 2171 | symbol_lookup_debug_printf ("no symbol found"); |
6640a367 | 2172 | return {}; |
cc485e62 | 2173 | } |
c906108c SS |
2174 | } |
2175 | } | |
2176 | ||
53c5240f | 2177 | /* Now do whatever is appropriate for LANGUAGE to look |
774b6a14 | 2178 | up static and global variables. */ |
c906108c | 2179 | |
a78a19b1 | 2180 | result = langdef->lookup_symbol_nonlocal (name, block, domain); |
d12307c1 | 2181 | if (result.symbol != NULL) |
cc485e62 | 2182 | { |
b1e678d9 AB |
2183 | symbol_lookup_debug_printf |
2184 | ("found symbol @ %s (using language lookup_symbol_nonlocal)", | |
2185 | host_address_to_string (result.symbol)); | |
d12307c1 | 2186 | return result; |
cc485e62 | 2187 | } |
c906108c | 2188 | |
774b6a14 TT |
2189 | /* Now search all static file-level symbols. Not strictly correct, |
2190 | but more useful than an error. */ | |
41f62f39 | 2191 | |
d12307c1 | 2192 | result = lookup_static_symbol (name, domain); |
b1e678d9 AB |
2193 | symbol_lookup_debug_printf |
2194 | ("found symbol @ %s (using lookup_static_symbol)", | |
2195 | result.symbol != NULL ? host_address_to_string (result.symbol) : "NULL"); | |
d12307c1 | 2196 | return result; |
41f62f39 JK |
2197 | } |
2198 | ||
e4051eeb | 2199 | /* Check to see if the symbol is defined in BLOCK or its superiors. |
89a9d1b1 | 2200 | Don't search STATIC_BLOCK or GLOBAL_BLOCK. */ |
8155455b | 2201 | |
d12307c1 | 2202 | static struct block_symbol |
de63c46b PA |
2203 | lookup_local_symbol (const char *name, |
2204 | symbol_name_match_type match_type, | |
2205 | const struct block *block, | |
ccf41c24 | 2206 | const domain_search_flags domain, |
74016e12 | 2207 | enum language language) |
8155455b | 2208 | { |
78004096 TT |
2209 | if (block == nullptr) |
2210 | return {}; | |
2211 | ||
8155455b | 2212 | struct symbol *sym; |
d24e14a0 | 2213 | const struct block *static_block = block->static_block (); |
3c45e9f9 | 2214 | const char *scope = block->scope (); |
13387711 | 2215 | |
78004096 TT |
2216 | /* Check if it's a global block. */ |
2217 | if (static_block == nullptr) | |
6640a367 | 2218 | return {}; |
e4051eeb | 2219 | |
89a9d1b1 | 2220 | while (block != static_block) |
f61e8913 | 2221 | { |
de63c46b | 2222 | sym = lookup_symbol_in_block (name, match_type, block, domain); |
f61e8913 | 2223 | if (sym != NULL) |
d12307c1 | 2224 | return (struct block_symbol) {sym, block}; |
edb3359d | 2225 | |
f55ee35c | 2226 | if (language == language_cplus || language == language_fortran) |
dda83cd7 SM |
2227 | { |
2228 | struct block_symbol blocksym | |
d12307c1 PMR |
2229 | = cp_lookup_symbol_imports_or_template (scope, name, block, |
2230 | domain); | |
2231 | ||
dda83cd7 SM |
2232 | if (blocksym.symbol != NULL) |
2233 | return blocksym; | |
2234 | } | |
13387711 | 2235 | |
a4dfe747 | 2236 | if (block->function () != NULL && block->inlined_p ()) |
edb3359d | 2237 | break; |
f135fe72 | 2238 | block = block->superblock (); |
f61e8913 DC |
2239 | } |
2240 | ||
3aee438b | 2241 | /* We've reached the end of the function without finding a result. */ |
e4051eeb | 2242 | |
6640a367 | 2243 | return {}; |
f61e8913 DC |
2244 | } |
2245 | ||
cf901d3b | 2246 | /* See symtab.h. */ |
3a40aaa0 | 2247 | |
5f9a71c3 | 2248 | struct symbol * |
de63c46b PA |
2249 | lookup_symbol_in_block (const char *name, symbol_name_match_type match_type, |
2250 | const struct block *block, | |
ccf41c24 | 2251 | const domain_search_flags domain) |
f61e8913 DC |
2252 | { |
2253 | struct symbol *sym; | |
f61e8913 | 2254 | |
b1e678d9 | 2255 | if (symbol_lookup_debug) |
cc485e62 | 2256 | { |
b1e678d9 | 2257 | struct objfile *objfile |
46baa3c6 | 2258 | = block == nullptr ? nullptr : block->objfile (); |
cc485e62 | 2259 | |
b1e678d9 AB |
2260 | symbol_lookup_debug_printf_v |
2261 | ("lookup_symbol_in_block (%s, %s (objfile %s), %s)", | |
2262 | name, host_address_to_string (block), | |
2263 | objfile != nullptr ? objfile_debug_name (objfile) : "NULL", | |
ccf41c24 | 2264 | domain_name (domain).c_str ()); |
cc485e62 DE |
2265 | } |
2266 | ||
de63c46b | 2267 | sym = block_lookup_symbol (block, name, match_type, domain); |
f61e8913 | 2268 | if (sym) |
8155455b | 2269 | { |
b1e678d9 AB |
2270 | symbol_lookup_debug_printf_v ("lookup_symbol_in_block (...) = %s", |
2271 | host_address_to_string (sym)); | |
dae58e04 | 2272 | return sym; |
8155455b DC |
2273 | } |
2274 | ||
b1e678d9 | 2275 | symbol_lookup_debug_printf_v ("lookup_symbol_in_block (...) = NULL"); |
8155455b DC |
2276 | return NULL; |
2277 | } | |
2278 | ||
cf901d3b | 2279 | /* See symtab.h. */ |
3a40aaa0 | 2280 | |
d12307c1 | 2281 | struct block_symbol |
efad9b6a | 2282 | lookup_global_symbol_from_objfile (struct objfile *main_objfile, |
442853af | 2283 | enum block_enum block_index, |
3a40aaa0 | 2284 | const char *name, |
ccf41c24 | 2285 | const domain_search_flags domain) |
3a40aaa0 | 2286 | { |
442853af CB |
2287 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2288 | ||
bde09ab7 | 2289 | for (objfile *objfile : main_objfile->separate_debug_objfiles ()) |
15d123c9 | 2290 | { |
d12307c1 | 2291 | struct block_symbol result |
dda83cd7 | 2292 | = lookup_symbol_in_objfile (objfile, block_index, name, domain); |
15d123c9 | 2293 | |
442853af | 2294 | if (result.symbol != nullptr) |
d12307c1 | 2295 | return result; |
15d123c9 | 2296 | } |
56e3f43c | 2297 | |
6640a367 | 2298 | return {}; |
3a40aaa0 UW |
2299 | } |
2300 | ||
19630284 JB |
2301 | /* Check to see if the symbol is defined in one of the OBJFILE's |
2302 | symtabs. BLOCK_INDEX should be either GLOBAL_BLOCK or STATIC_BLOCK, | |
8155455b DC |
2303 | depending on whether or not we want to search global symbols or |
2304 | static symbols. */ | |
2305 | ||
d12307c1 | 2306 | static struct block_symbol |
c32e6a04 CB |
2307 | lookup_symbol_in_objfile_symtabs (struct objfile *objfile, |
2308 | enum block_enum block_index, const char *name, | |
ccf41c24 | 2309 | const domain_search_flags domain) |
19630284 | 2310 | { |
ba715d7f JK |
2311 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2312 | ||
b1e678d9 AB |
2313 | symbol_lookup_debug_printf_v |
2314 | ("lookup_symbol_in_objfile_symtabs (%s, %s, %s, %s)", | |
2315 | objfile_debug_name (objfile), | |
2316 | block_index == GLOBAL_BLOCK ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
ccf41c24 | 2317 | name, domain_name (domain).c_str ()); |
cc485e62 | 2318 | |
de82891c TV |
2319 | struct block_symbol other; |
2320 | other.symbol = NULL; | |
b669c953 | 2321 | for (compunit_symtab *cust : objfile->compunits ()) |
a743abeb | 2322 | { |
43f3e411 DE |
2323 | const struct blockvector *bv; |
2324 | const struct block *block; | |
d12307c1 | 2325 | struct block_symbol result; |
43f3e411 | 2326 | |
af39c5c8 | 2327 | bv = cust->blockvector (); |
63d609de | 2328 | block = bv->block (block_index); |
d12307c1 PMR |
2329 | result.symbol = block_lookup_symbol_primary (block, name, domain); |
2330 | result.block = block; | |
de82891c TV |
2331 | if (result.symbol == NULL) |
2332 | continue; | |
2333 | if (best_symbol (result.symbol, domain)) | |
a743abeb | 2334 | { |
de82891c TV |
2335 | other = result; |
2336 | break; | |
2337 | } | |
911e1e79 | 2338 | if (result.symbol->matches (domain)) |
de82891c TV |
2339 | { |
2340 | struct symbol *better | |
2341 | = better_symbol (other.symbol, result.symbol, domain); | |
2342 | if (better != other.symbol) | |
cc485e62 | 2343 | { |
de82891c TV |
2344 | other.symbol = better; |
2345 | other.block = block; | |
cc485e62 | 2346 | } |
de82891c TV |
2347 | } |
2348 | } | |
d12307c1 | 2349 | |
de82891c TV |
2350 | if (other.symbol != NULL) |
2351 | { | |
b1e678d9 AB |
2352 | symbol_lookup_debug_printf_v |
2353 | ("lookup_symbol_in_objfile_symtabs (...) = %s (block %s)", | |
2354 | host_address_to_string (other.symbol), | |
2355 | host_address_to_string (other.block)); | |
de82891c | 2356 | return other; |
a743abeb | 2357 | } |
19630284 | 2358 | |
b1e678d9 AB |
2359 | symbol_lookup_debug_printf_v |
2360 | ("lookup_symbol_in_objfile_symtabs (...) = NULL"); | |
6640a367 | 2361 | return {}; |
19630284 JB |
2362 | } |
2363 | ||
74016e12 | 2364 | /* Wrapper around lookup_symbol_in_objfile_symtabs for search_symbols. |
422d65e7 | 2365 | Look up LINKAGE_NAME in DOMAIN in the global and static blocks of OBJFILE |
01465b56 DE |
2366 | and all associated separate debug objfiles. |
2367 | ||
2368 | Normally we only look in OBJFILE, and not any separate debug objfiles | |
2369 | because the outer loop will cause them to be searched too. This case is | |
2370 | different. Here we're called from search_symbols where it will only | |
6471e7d2 | 2371 | call us for the objfile that contains a matching minsym. */ |
422d65e7 | 2372 | |
d12307c1 | 2373 | static struct block_symbol |
422d65e7 DE |
2374 | lookup_symbol_in_objfile_from_linkage_name (struct objfile *objfile, |
2375 | const char *linkage_name, | |
ccf41c24 | 2376 | domain_search_flags domain) |
422d65e7 DE |
2377 | { |
2378 | enum language lang = current_language->la_language; | |
e9ad22ee | 2379 | struct objfile *main_objfile; |
422d65e7 | 2380 | |
2f408ecb PA |
2381 | demangle_result_storage storage; |
2382 | const char *modified_name = demangle_for_lookup (linkage_name, lang, storage); | |
2383 | ||
422d65e7 DE |
2384 | if (objfile->separate_debug_objfile_backlink) |
2385 | main_objfile = objfile->separate_debug_objfile_backlink; | |
2386 | else | |
2387 | main_objfile = objfile; | |
2388 | ||
bde09ab7 | 2389 | for (::objfile *cur_objfile : main_objfile->separate_debug_objfiles ()) |
422d65e7 | 2390 | { |
d12307c1 PMR |
2391 | struct block_symbol result; |
2392 | ||
2393 | result = lookup_symbol_in_objfile_symtabs (cur_objfile, GLOBAL_BLOCK, | |
2394 | modified_name, domain); | |
2395 | if (result.symbol == NULL) | |
2396 | result = lookup_symbol_in_objfile_symtabs (cur_objfile, STATIC_BLOCK, | |
2397 | modified_name, domain); | |
2398 | if (result.symbol != NULL) | |
2f408ecb | 2399 | return result; |
422d65e7 DE |
2400 | } |
2401 | ||
6640a367 | 2402 | return {}; |
422d65e7 DE |
2403 | } |
2404 | ||
08c23b0d TT |
2405 | /* A helper function that throws an exception when a symbol was found |
2406 | in a psymtab but not in a symtab. */ | |
2407 | ||
2408 | static void ATTRIBUTE_NORETURN | |
ddbcedf5 | 2409 | error_in_psymtab_expansion (enum block_enum block_index, const char *name, |
43f3e411 | 2410 | struct compunit_symtab *cust) |
08c23b0d TT |
2411 | { |
2412 | error (_("\ | |
2413 | Internal: %s symbol `%s' found in %s psymtab but not in symtab.\n\ | |
2414 | %s may be an inlined function, or may be a template function\n \ | |
2415 | (if a template, try specifying an instantiation: %s<type>)."), | |
f88cb4b6 | 2416 | block_index == GLOBAL_BLOCK ? "global" : "static", |
43f3e411 | 2417 | name, |
0b17a4f7 | 2418 | symtab_to_filename_for_display (cust->primary_filetab ()), |
43f3e411 | 2419 | name, name); |
08c23b0d TT |
2420 | } |
2421 | ||
74016e12 DE |
2422 | /* A helper function for various lookup routines that interfaces with |
2423 | the "quick" symbol table functions. */ | |
8155455b | 2424 | |
d12307c1 | 2425 | static struct block_symbol |
ddbcedf5 CB |
2426 | lookup_symbol_via_quick_fns (struct objfile *objfile, |
2427 | enum block_enum block_index, const char *name, | |
ccf41c24 | 2428 | const domain_search_flags domain) |
8155455b | 2429 | { |
43f3e411 | 2430 | struct compunit_symtab *cust; |
346d1dfe | 2431 | const struct blockvector *bv; |
8155455b | 2432 | const struct block *block; |
d12307c1 | 2433 | struct block_symbol result; |
8155455b | 2434 | |
b1e678d9 AB |
2435 | symbol_lookup_debug_printf_v |
2436 | ("lookup_symbol_via_quick_fns (%s, %s, %s, %s)", | |
2437 | objfile_debug_name (objfile), | |
2438 | block_index == GLOBAL_BLOCK ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
ccf41c24 | 2439 | name, domain_name (domain).c_str ()); |
cc485e62 | 2440 | |
4d080b46 | 2441 | cust = objfile->lookup_symbol (block_index, name, domain); |
43f3e411 | 2442 | if (cust == NULL) |
cc485e62 | 2443 | { |
b1e678d9 AB |
2444 | symbol_lookup_debug_printf_v |
2445 | ("lookup_symbol_via_quick_fns (...) = NULL"); | |
6640a367 | 2446 | return {}; |
cc485e62 | 2447 | } |
8155455b | 2448 | |
af39c5c8 | 2449 | bv = cust->blockvector (); |
63d609de | 2450 | block = bv->block (block_index); |
de63c46b PA |
2451 | result.symbol = block_lookup_symbol (block, name, |
2452 | symbol_name_match_type::FULL, domain); | |
d12307c1 | 2453 | if (result.symbol == NULL) |
43f3e411 | 2454 | error_in_psymtab_expansion (block_index, name, cust); |
cc485e62 | 2455 | |
b1e678d9 AB |
2456 | symbol_lookup_debug_printf_v |
2457 | ("lookup_symbol_via_quick_fns (...) = %s (block %s)", | |
2458 | host_address_to_string (result.symbol), | |
2459 | host_address_to_string (block)); | |
cc485e62 | 2460 | |
d12307c1 PMR |
2461 | result.block = block; |
2462 | return result; | |
8155455b DC |
2463 | } |
2464 | ||
a78a19b1 | 2465 | /* See language.h. */ |
5f9a71c3 | 2466 | |
d12307c1 | 2467 | struct block_symbol |
a78a19b1 AB |
2468 | language_defn::lookup_symbol_nonlocal (const char *name, |
2469 | const struct block *block, | |
ccf41c24 | 2470 | const domain_search_flags domain) const |
5f9a71c3 | 2471 | { |
d12307c1 | 2472 | struct block_symbol result; |
5f9a71c3 | 2473 | |
d9060ba6 DE |
2474 | /* NOTE: dje/2014-10-26: The lookup in all objfiles search could skip |
2475 | the current objfile. Searching the current objfile first is useful | |
2476 | for both matching user expectations as well as performance. */ | |
2477 | ||
d12307c1 PMR |
2478 | result = lookup_symbol_in_static_block (name, block, domain); |
2479 | if (result.symbol != NULL) | |
2480 | return result; | |
5f9a71c3 | 2481 | |
1994afbf DE |
2482 | /* If we didn't find a definition for a builtin type in the static block, |
2483 | search for it now. This is actually the right thing to do and can be | |
2484 | a massive performance win. E.g., when debugging a program with lots of | |
2485 | shared libraries we could search all of them only to find out the | |
2486 | builtin type isn't defined in any of them. This is common for types | |
2487 | like "void". */ | |
ccf41c24 | 2488 | if ((domain & SEARCH_TYPE_DOMAIN) != 0) |
1994afbf DE |
2489 | { |
2490 | struct gdbarch *gdbarch; | |
2491 | ||
2492 | if (block == NULL) | |
99d9c3b9 | 2493 | gdbarch = current_inferior ()->arch (); |
1994afbf | 2494 | else |
7f5937df | 2495 | gdbarch = block->gdbarch (); |
a78a19b1 | 2496 | result.symbol = language_lookup_primitive_type_as_symbol (this, |
d12307c1 PMR |
2497 | gdbarch, name); |
2498 | result.block = NULL; | |
2499 | if (result.symbol != NULL) | |
2500 | return result; | |
1994afbf DE |
2501 | } |
2502 | ||
08724ab7 | 2503 | return lookup_global_symbol (name, block, domain); |
5f9a71c3 DC |
2504 | } |
2505 | ||
cf901d3b | 2506 | /* See symtab.h. */ |
5f9a71c3 | 2507 | |
d12307c1 | 2508 | struct block_symbol |
24d864bb DE |
2509 | lookup_symbol_in_static_block (const char *name, |
2510 | const struct block *block, | |
ccf41c24 | 2511 | const domain_search_flags domain) |
5f9a71c3 | 2512 | { |
78004096 TT |
2513 | if (block == nullptr) |
2514 | return {}; | |
2515 | ||
d24e14a0 | 2516 | const struct block *static_block = block->static_block (); |
cc485e62 | 2517 | struct symbol *sym; |
5f9a71c3 | 2518 | |
cc485e62 | 2519 | if (static_block == NULL) |
6640a367 | 2520 | return {}; |
cc485e62 DE |
2521 | |
2522 | if (symbol_lookup_debug) | |
2523 | { | |
d6bc0792 | 2524 | struct objfile *objfile = (block == nullptr |
46baa3c6 | 2525 | ? nullptr : block->objfile ()); |
cc485e62 | 2526 | |
b1e678d9 AB |
2527 | symbol_lookup_debug_printf |
2528 | ("lookup_symbol_in_static_block (%s, %s (objfile %s), %s)", | |
2529 | name, host_address_to_string (block), | |
2530 | objfile != nullptr ? objfile_debug_name (objfile) : "NULL", | |
ccf41c24 | 2531 | domain_name (domain).c_str ()); |
cc485e62 DE |
2532 | } |
2533 | ||
de63c46b PA |
2534 | sym = lookup_symbol_in_block (name, |
2535 | symbol_name_match_type::FULL, | |
2536 | static_block, domain); | |
b1e678d9 AB |
2537 | symbol_lookup_debug_printf ("lookup_symbol_in_static_block (...) = %s", |
2538 | sym != NULL | |
2539 | ? host_address_to_string (sym) : "NULL"); | |
d12307c1 | 2540 | return (struct block_symbol) {sym, static_block}; |
5f9a71c3 DC |
2541 | } |
2542 | ||
af3768e9 DE |
2543 | /* Perform the standard symbol lookup of NAME in OBJFILE: |
2544 | 1) First search expanded symtabs, and if not found | |
2545 | 2) Search the "quick" symtabs (partial or .gdb_index). | |
2546 | BLOCK_INDEX is one of GLOBAL_BLOCK or STATIC_BLOCK. */ | |
2547 | ||
d12307c1 | 2548 | static struct block_symbol |
c32e6a04 | 2549 | lookup_symbol_in_objfile (struct objfile *objfile, enum block_enum block_index, |
ccf41c24 | 2550 | const char *name, const domain_search_flags domain) |
af3768e9 | 2551 | { |
d12307c1 | 2552 | struct block_symbol result; |
af3768e9 | 2553 | |
c32e6a04 CB |
2554 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2555 | ||
b1e678d9 AB |
2556 | symbol_lookup_debug_printf ("lookup_symbol_in_objfile (%s, %s, %s, %s)", |
2557 | objfile_debug_name (objfile), | |
2558 | block_index == GLOBAL_BLOCK | |
2559 | ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
ccf41c24 | 2560 | name, domain_name (domain).c_str ()); |
cc485e62 | 2561 | |
af3768e9 DE |
2562 | result = lookup_symbol_in_objfile_symtabs (objfile, block_index, |
2563 | name, domain); | |
d12307c1 | 2564 | if (result.symbol != NULL) |
af3768e9 | 2565 | { |
b1e678d9 AB |
2566 | symbol_lookup_debug_printf |
2567 | ("lookup_symbol_in_objfile (...) = %s (in symtabs)", | |
2568 | host_address_to_string (result.symbol)); | |
cc485e62 | 2569 | return result; |
af3768e9 DE |
2570 | } |
2571 | ||
cc485e62 DE |
2572 | result = lookup_symbol_via_quick_fns (objfile, block_index, |
2573 | name, domain); | |
b1e678d9 AB |
2574 | symbol_lookup_debug_printf ("lookup_symbol_in_objfile (...) = %s%s", |
2575 | result.symbol != NULL | |
2576 | ? host_address_to_string (result.symbol) | |
2577 | : "NULL", | |
2578 | result.symbol != NULL ? " (via quick fns)" | |
2579 | : ""); | |
af3768e9 DE |
2580 | return result; |
2581 | } | |
2582 | ||
9aa55206 CB |
2583 | /* This function contains the common code of lookup_{global,static}_symbol. |
2584 | OBJFILE is only used if BLOCK_INDEX is GLOBAL_SCOPE, in which case it is | |
2585 | the objfile to start the lookup in. */ | |
5f9a71c3 | 2586 | |
9aa55206 CB |
2587 | static struct block_symbol |
2588 | lookup_global_or_static_symbol (const char *name, | |
2589 | enum block_enum block_index, | |
2590 | struct objfile *objfile, | |
ccf41c24 | 2591 | const domain_search_flags domain) |
5f9a71c3 | 2592 | { |
f57d2163 | 2593 | struct symbol_cache *cache = get_symbol_cache (current_program_space); |
d12307c1 | 2594 | struct block_symbol result; |
f57d2163 DE |
2595 | struct block_symbol_cache *bsc; |
2596 | struct symbol_cache_slot *slot; | |
b2fb95e0 | 2597 | |
9aa55206 CB |
2598 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2599 | gdb_assert (objfile == nullptr || block_index == GLOBAL_BLOCK); | |
f57d2163 DE |
2600 | |
2601 | /* First see if we can find the symbol in the cache. | |
2602 | This works because we use the current objfile to qualify the lookup. */ | |
9aa55206 | 2603 | result = symbol_cache_lookup (cache, objfile, block_index, name, domain, |
d12307c1 PMR |
2604 | &bsc, &slot); |
2605 | if (result.symbol != NULL) | |
f57d2163 | 2606 | { |
d12307c1 | 2607 | if (SYMBOL_LOOKUP_FAILED_P (result)) |
6640a367 | 2608 | return {}; |
d12307c1 | 2609 | return result; |
f57d2163 DE |
2610 | } |
2611 | ||
626ca2c0 | 2612 | /* Do a global search (of global blocks, heh). */ |
d12307c1 | 2613 | if (result.symbol == NULL) |
6e9cd73e | 2614 | gdbarch_iterate_over_objfiles_in_search_order |
99d9c3b9 | 2615 | (objfile != NULL ? objfile->arch () : current_inferior ()->arch (), |
6e9cd73e SM |
2616 | [&result, block_index, name, domain] (struct objfile *objfile_iter) |
2617 | { | |
2618 | result = lookup_symbol_in_objfile (objfile_iter, block_index, | |
2619 | name, domain); | |
2620 | return result.symbol != nullptr; | |
2621 | }, | |
2622 | objfile); | |
6a3ca067 | 2623 | |
d12307c1 | 2624 | if (result.symbol != NULL) |
ccf41c24 TT |
2625 | symbol_cache_mark_found (bsc, slot, objfile, result.symbol, result.block, |
2626 | domain); | |
f57d2163 DE |
2627 | else |
2628 | symbol_cache_mark_not_found (bsc, slot, objfile, name, domain); | |
2629 | ||
d12307c1 | 2630 | return result; |
5f9a71c3 DC |
2631 | } |
2632 | ||
9aa55206 CB |
2633 | /* See symtab.h. */ |
2634 | ||
2635 | struct block_symbol | |
ccf41c24 | 2636 | lookup_static_symbol (const char *name, const domain_search_flags domain) |
9aa55206 CB |
2637 | { |
2638 | return lookup_global_or_static_symbol (name, STATIC_BLOCK, nullptr, domain); | |
2639 | } | |
2640 | ||
2641 | /* See symtab.h. */ | |
2642 | ||
2643 | struct block_symbol | |
2644 | lookup_global_symbol (const char *name, | |
2645 | const struct block *block, | |
ccf41c24 | 2646 | const domain_search_flags domain) |
9aa55206 | 2647 | { |
d3d32391 AB |
2648 | /* If a block was passed in, we want to search the corresponding |
2649 | global block first. This yields "more expected" behavior, and is | |
2650 | needed to support 'FILENAME'::VARIABLE lookups. */ | |
8f14fd11 | 2651 | const struct block *global_block |
d24e14a0 | 2652 | = block == nullptr ? nullptr : block->global_block (); |
70bc38f5 | 2653 | symbol *sym = NULL; |
d3d32391 AB |
2654 | if (global_block != nullptr) |
2655 | { | |
70bc38f5 TV |
2656 | sym = lookup_symbol_in_block (name, |
2657 | symbol_name_match_type::FULL, | |
2658 | global_block, domain); | |
2659 | if (sym != NULL && best_symbol (sym, domain)) | |
d3d32391 AB |
2660 | return { sym, global_block }; |
2661 | } | |
2662 | ||
d6bc0792 TT |
2663 | struct objfile *objfile = nullptr; |
2664 | if (block != nullptr) | |
2665 | { | |
46baa3c6 | 2666 | objfile = block->objfile (); |
d6bc0792 TT |
2667 | if (objfile->separate_debug_objfile_backlink != nullptr) |
2668 | objfile = objfile->separate_debug_objfile_backlink; | |
2669 | } | |
2670 | ||
70bc38f5 TV |
2671 | block_symbol bs |
2672 | = lookup_global_or_static_symbol (name, GLOBAL_BLOCK, objfile, domain); | |
2673 | if (better_symbol (sym, bs.symbol, domain) == sym) | |
2674 | return { sym, global_block }; | |
2675 | else | |
2676 | return bs; | |
9aa55206 CB |
2677 | } |
2678 | ||
ececd218 | 2679 | bool |
4186eb54 KS |
2680 | symbol_matches_domain (enum language symbol_language, |
2681 | domain_enum symbol_domain, | |
2682 | domain_enum domain) | |
2683 | { | |
2684 | /* For C++ "struct foo { ... }" also defines a typedef for "foo". | |
4186eb54 KS |
2685 | Similarly, any Ada type declaration implicitly defines a typedef. */ |
2686 | if (symbol_language == language_cplus | |
2687 | || symbol_language == language_d | |
65547233 TT |
2688 | || symbol_language == language_ada |
2689 | || symbol_language == language_rust) | |
4186eb54 KS |
2690 | { |
2691 | if ((domain == VAR_DOMAIN || domain == STRUCT_DOMAIN) | |
2692 | && symbol_domain == STRUCT_DOMAIN) | |
ececd218 | 2693 | return true; |
4186eb54 KS |
2694 | } |
2695 | /* For all other languages, strict match is required. */ | |
2696 | return (symbol_domain == domain); | |
2697 | } | |
2698 | ||
cf901d3b | 2699 | /* See symtab.h. */ |
c906108c | 2700 | |
25f31e18 TT |
2701 | bool |
2702 | symbol::matches (domain_search_flags flags) const | |
2703 | { | |
2704 | if (language () != language_c | |
2705 | && language () != language_objc | |
2706 | && language () != language_opencl) | |
2707 | { | |
2708 | /* Only C languages distinguish tag and type namespaces. */ | |
2709 | if ((flags & SEARCH_TYPE_DOMAIN) != 0) | |
2710 | flags |= SEARCH_STRUCT_DOMAIN; | |
2711 | } | |
2712 | ||
2713 | if ((flags & SEARCH_FUNCTION_DOMAIN) != 0 | |
2714 | && domain () == VAR_DOMAIN | |
2715 | && aclass () == LOC_BLOCK) | |
2716 | return true; | |
2717 | ||
2718 | if ((flags & SEARCH_VAR_DOMAIN) != 0 | |
2719 | && domain () == VAR_DOMAIN) | |
2720 | return true; | |
2721 | ||
2722 | if ((flags & SEARCH_TYPE_DOMAIN) != 0 | |
2723 | && domain () == VAR_DOMAIN | |
2724 | && aclass () == LOC_TYPEDEF) | |
2725 | return true; | |
2726 | ||
2727 | if ((flags & SEARCH_STRUCT_DOMAIN) != 0 | |
2728 | && domain () == STRUCT_DOMAIN) | |
2729 | return true; | |
2730 | ||
2731 | return search_flags_matches (flags, m_domain); | |
2732 | } | |
2733 | ||
2734 | /* See symtab.h. */ | |
2735 | ||
ccefe4c4 TT |
2736 | struct type * |
2737 | lookup_transparent_type (const char *name) | |
c906108c | 2738 | { |
54f4ca46 | 2739 | return current_language->lookup_transparent_type (name); |
ccefe4c4 | 2740 | } |
9af17804 | 2741 | |
ccefe4c4 TT |
2742 | /* A helper for basic_lookup_transparent_type that interfaces with the |
2743 | "quick" symbol table functions. */ | |
357e46e7 | 2744 | |
ccefe4c4 | 2745 | static struct type * |
ddbcedf5 CB |
2746 | basic_lookup_transparent_type_quick (struct objfile *objfile, |
2747 | enum block_enum block_index, | |
ccefe4c4 TT |
2748 | const char *name) |
2749 | { | |
43f3e411 | 2750 | struct compunit_symtab *cust; |
346d1dfe | 2751 | const struct blockvector *bv; |
582942f4 | 2752 | const struct block *block; |
ccefe4c4 | 2753 | struct symbol *sym; |
c906108c | 2754 | |
ccf41c24 | 2755 | cust = objfile->lookup_symbol (block_index, name, SEARCH_STRUCT_DOMAIN); |
43f3e411 | 2756 | if (cust == NULL) |
ccefe4c4 | 2757 | return NULL; |
c906108c | 2758 | |
af39c5c8 | 2759 | bv = cust->blockvector (); |
63d609de | 2760 | block = bv->block (block_index); |
b7a92724 TT |
2761 | |
2762 | lookup_name_info lookup_name (name, symbol_name_match_type::FULL); | |
ccf41c24 | 2763 | sym = block_find_symbol (block, lookup_name, SEARCH_STRUCT_DOMAIN, nullptr); |
b7a92724 | 2764 | if (sym == nullptr) |
43f3e411 | 2765 | error_in_psymtab_expansion (block_index, name, cust); |
5f9c5a63 SM |
2766 | gdb_assert (!TYPE_IS_OPAQUE (sym->type ())); |
2767 | return sym->type (); | |
b2e2f908 | 2768 | } |
08c23b0d | 2769 | |
b2e2f908 DE |
2770 | /* Subroutine of basic_lookup_transparent_type to simplify it. |
2771 | Look up the non-opaque definition of NAME in BLOCK_INDEX of OBJFILE. | |
2772 | BLOCK_INDEX is either GLOBAL_BLOCK or STATIC_BLOCK. */ | |
2773 | ||
2774 | static struct type * | |
ddbcedf5 CB |
2775 | basic_lookup_transparent_type_1 (struct objfile *objfile, |
2776 | enum block_enum block_index, | |
b2e2f908 DE |
2777 | const char *name) |
2778 | { | |
b2e2f908 DE |
2779 | const struct blockvector *bv; |
2780 | const struct block *block; | |
2781 | const struct symbol *sym; | |
2782 | ||
b7a92724 | 2783 | lookup_name_info lookup_name (name, symbol_name_match_type::FULL); |
b669c953 | 2784 | for (compunit_symtab *cust : objfile->compunits ()) |
b2e2f908 | 2785 | { |
af39c5c8 | 2786 | bv = cust->blockvector (); |
63d609de | 2787 | block = bv->block (block_index); |
ccf41c24 TT |
2788 | sym = block_find_symbol (block, lookup_name, SEARCH_STRUCT_DOMAIN, |
2789 | nullptr); | |
b7a92724 | 2790 | if (sym != nullptr) |
b2e2f908 | 2791 | { |
5f9c5a63 SM |
2792 | gdb_assert (!TYPE_IS_OPAQUE (sym->type ())); |
2793 | return sym->type (); | |
b2e2f908 DE |
2794 | } |
2795 | } | |
c906108c | 2796 | |
ccefe4c4 | 2797 | return NULL; |
b368761e | 2798 | } |
c906108c | 2799 | |
b368761e DC |
2800 | /* The standard implementation of lookup_transparent_type. This code |
2801 | was modeled on lookup_symbol -- the parts not relevant to looking | |
2802 | up types were just left out. In particular it's assumed here that | |
cf901d3b | 2803 | types are available in STRUCT_DOMAIN and only in file-static or |
b368761e | 2804 | global blocks. */ |
c906108c SS |
2805 | |
2806 | struct type * | |
b368761e | 2807 | basic_lookup_transparent_type (const char *name) |
c906108c | 2808 | { |
ccefe4c4 | 2809 | struct type *t; |
c906108c SS |
2810 | |
2811 | /* Now search all the global symbols. Do the symtab's first, then | |
c378eb4e | 2812 | check the psymtab's. If a psymtab indicates the existence |
c906108c SS |
2813 | of the desired name as a global, then do psymtab-to-symtab |
2814 | conversion on the fly and return the found symbol. */ | |
c5aa993b | 2815 | |
2030c079 | 2816 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2817 | { |
2818 | t = basic_lookup_transparent_type_1 (objfile, GLOBAL_BLOCK, name); | |
2819 | if (t) | |
2820 | return t; | |
2821 | } | |
c906108c | 2822 | |
2030c079 | 2823 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2824 | { |
2825 | t = basic_lookup_transparent_type_quick (objfile, GLOBAL_BLOCK, name); | |
2826 | if (t) | |
2827 | return t; | |
2828 | } | |
c906108c SS |
2829 | |
2830 | /* Now search the static file-level symbols. | |
2831 | Not strictly correct, but more useful than an error. | |
2832 | Do the symtab's first, then | |
c378eb4e | 2833 | check the psymtab's. If a psymtab indicates the existence |
c906108c | 2834 | of the desired name as a file-level static, then do psymtab-to-symtab |
c378eb4e | 2835 | conversion on the fly and return the found symbol. */ |
c906108c | 2836 | |
2030c079 | 2837 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2838 | { |
2839 | t = basic_lookup_transparent_type_1 (objfile, STATIC_BLOCK, name); | |
2840 | if (t) | |
2841 | return t; | |
2842 | } | |
c906108c | 2843 | |
2030c079 | 2844 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2845 | { |
2846 | t = basic_lookup_transparent_type_quick (objfile, STATIC_BLOCK, name); | |
2847 | if (t) | |
2848 | return t; | |
2849 | } | |
ccefe4c4 | 2850 | |
c906108c SS |
2851 | return (struct type *) 0; |
2852 | } | |
2853 | ||
6969f124 | 2854 | /* See symtab.h. */ |
f8eba3c6 | 2855 | |
6969f124 | 2856 | bool |
b5ec771e PA |
2857 | iterate_over_symbols (const struct block *block, |
2858 | const lookup_name_info &name, | |
6c015214 | 2859 | const domain_search_flags domain, |
14bc53a8 | 2860 | gdb::function_view<symbol_found_callback_ftype> callback) |
f8eba3c6 | 2861 | { |
a1b29426 | 2862 | for (struct symbol *sym : block_iterator_range (block, &name)) |
4eeaa230 | 2863 | { |
911e1e79 | 2864 | if (sym->matches (domain)) |
f8eba3c6 | 2865 | { |
7e41c8db KS |
2866 | struct block_symbol block_sym = {sym, block}; |
2867 | ||
2868 | if (!callback (&block_sym)) | |
6969f124 | 2869 | return false; |
f8eba3c6 | 2870 | } |
f8eba3c6 | 2871 | } |
6969f124 | 2872 | return true; |
f8eba3c6 TT |
2873 | } |
2874 | ||
6a3dbf1b TT |
2875 | /* See symtab.h. */ |
2876 | ||
2877 | bool | |
2878 | iterate_over_symbols_terminated | |
2879 | (const struct block *block, | |
2880 | const lookup_name_info &name, | |
6c015214 | 2881 | const domain_search_flags domain, |
6a3dbf1b TT |
2882 | gdb::function_view<symbol_found_callback_ftype> callback) |
2883 | { | |
2884 | if (!iterate_over_symbols (block, name, domain, callback)) | |
2885 | return false; | |
2886 | struct block_symbol block_sym = {nullptr, block}; | |
2887 | return callback (&block_sym); | |
2888 | } | |
2889 | ||
43f3e411 DE |
2890 | /* Find the compunit symtab associated with PC and SECTION. |
2891 | This will read in debug info as necessary. */ | |
c906108c | 2892 | |
43f3e411 DE |
2893 | struct compunit_symtab * |
2894 | find_pc_sect_compunit_symtab (CORE_ADDR pc, struct obj_section *section) | |
c906108c | 2895 | { |
43f3e411 | 2896 | struct compunit_symtab *best_cust = NULL; |
61eb46a4 | 2897 | CORE_ADDR best_cust_range = 0; |
77e371c0 | 2898 | struct bound_minimal_symbol msymbol; |
8a48e967 DJ |
2899 | |
2900 | /* If we know that this is not a text address, return failure. This is | |
2901 | necessary because we loop based on the block's high and low code | |
2902 | addresses, which do not include the data ranges, and because | |
2903 | we call find_pc_sect_psymtab which has a similar restriction based | |
2904 | on the partial_symtab's texthigh and textlow. */ | |
77e371c0 | 2905 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); |
1ed9f74e | 2906 | if (msymbol.minsym && msymbol.minsym->data_p ()) |
8a48e967 | 2907 | return NULL; |
c906108c SS |
2908 | |
2909 | /* Search all symtabs for the one whose file contains our address, and which | |
2910 | is the smallest of all the ones containing the address. This is designed | |
2911 | to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000 | |
2912 | and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from | |
2913 | 0x1000-0x4000, but for address 0x2345 we want to return symtab b. | |
2914 | ||
2915 | This happens for native ecoff format, where code from included files | |
c378eb4e | 2916 | gets its own symtab. The symtab for the included file should have |
c906108c SS |
2917 | been read in already via the dependency mechanism. |
2918 | It might be swifter to create several symtabs with the same name | |
2919 | like xcoff does (I'm not sure). | |
2920 | ||
2921 | It also happens for objfiles that have their functions reordered. | |
2922 | For these, the symtab we are looking for is not necessarily read in. */ | |
2923 | ||
2030c079 | 2924 | for (objfile *obj_file : current_program_space->objfiles ()) |
d8aeb77f | 2925 | { |
b669c953 | 2926 | for (compunit_symtab *cust : obj_file->compunits ()) |
d8aeb77f | 2927 | { |
af39c5c8 | 2928 | const struct blockvector *bv = cust->blockvector (); |
63d609de | 2929 | const struct block *global_block = bv->global_block (); |
4b8791e1 SM |
2930 | CORE_ADDR start = global_block->start (); |
2931 | CORE_ADDR end = global_block->end (); | |
61eb46a4 TV |
2932 | bool in_range_p = start <= pc && pc < end; |
2933 | if (!in_range_p) | |
2934 | continue; | |
43f3e411 | 2935 | |
414705d1 | 2936 | if (bv->map () != nullptr) |
1b00ef06 | 2937 | { |
769520b7 | 2938 | if (bv->map ()->find (pc) == nullptr) |
1b00ef06 TV |
2939 | continue; |
2940 | ||
2941 | return cust; | |
2942 | } | |
2943 | ||
61eb46a4 TV |
2944 | CORE_ADDR range = end - start; |
2945 | if (best_cust != nullptr | |
2946 | && range >= best_cust_range) | |
2947 | /* Cust doesn't have a smaller range than best_cust, skip it. */ | |
2948 | continue; | |
2949 | ||
2950 | /* For an objfile that has its functions reordered, | |
2951 | find_pc_psymtab will find the proper partial symbol table | |
2952 | and we simply return its corresponding symtab. */ | |
2953 | /* In order to better support objfiles that contain both | |
2954 | stabs and coff debugging info, we continue on if a psymtab | |
2955 | can't be found. */ | |
100e3935 TT |
2956 | struct compunit_symtab *result |
2957 | = obj_file->find_pc_sect_compunit_symtab (msymbol, pc, | |
2958 | section, 0); | |
2959 | if (result != nullptr) | |
2960 | return result; | |
c906108c | 2961 | |
61eb46a4 | 2962 | if (section != 0) |
d8aeb77f | 2963 | { |
548a89df | 2964 | struct symbol *found_sym = nullptr; |
61eb46a4 | 2965 | |
bd24c5d6 | 2966 | for (int b_index = GLOBAL_BLOCK; |
548a89df | 2967 | b_index <= STATIC_BLOCK && found_sym == nullptr; |
bd24c5d6 | 2968 | ++b_index) |
d8aeb77f | 2969 | { |
63d609de | 2970 | const struct block *b = bv->block (b_index); |
548a89df | 2971 | for (struct symbol *sym : block_iterator_range (b)) |
bd24c5d6 | 2972 | { |
ebbc3a7d | 2973 | if (matching_obj_sections (sym->obj_section (obj_file), |
bd24c5d6 | 2974 | section)) |
548a89df TT |
2975 | { |
2976 | found_sym = sym; | |
2977 | break; | |
2978 | } | |
bd24c5d6 | 2979 | } |
d8aeb77f | 2980 | } |
548a89df | 2981 | if (found_sym == nullptr) |
61eb46a4 | 2982 | continue; /* No symbol in this symtab matches |
d8aeb77f | 2983 | section. */ |
d8aeb77f | 2984 | } |
61eb46a4 TV |
2985 | |
2986 | /* Cust is best found sofar, save it. */ | |
2987 | best_cust = cust; | |
2988 | best_cust_range = range; | |
d8aeb77f TT |
2989 | } |
2990 | } | |
c906108c | 2991 | |
43f3e411 DE |
2992 | if (best_cust != NULL) |
2993 | return best_cust; | |
c906108c | 2994 | |
072cabfe DE |
2995 | /* Not found in symtabs, search the "quick" symtabs (e.g. psymtabs). */ |
2996 | ||
2030c079 | 2997 | for (objfile *objf : current_program_space->objfiles ()) |
aed57c53 | 2998 | { |
4d080b46 TT |
2999 | struct compunit_symtab *result |
3000 | = objf->find_pc_sect_compunit_symtab (msymbol, pc, section, 1); | |
aed57c53 TT |
3001 | if (result != NULL) |
3002 | return result; | |
3003 | } | |
ccefe4c4 TT |
3004 | |
3005 | return NULL; | |
c906108c SS |
3006 | } |
3007 | ||
43f3e411 DE |
3008 | /* Find the compunit symtab associated with PC. |
3009 | This will read in debug info as necessary. | |
3010 | Backward compatibility, no section. */ | |
c906108c | 3011 | |
43f3e411 DE |
3012 | struct compunit_symtab * |
3013 | find_pc_compunit_symtab (CORE_ADDR pc) | |
c906108c | 3014 | { |
43f3e411 | 3015 | return find_pc_sect_compunit_symtab (pc, find_pc_mapped_section (pc)); |
c906108c | 3016 | } |
71a3c369 TT |
3017 | |
3018 | /* See symtab.h. */ | |
3019 | ||
3020 | struct symbol * | |
3021 | find_symbol_at_address (CORE_ADDR address) | |
3022 | { | |
1f2624a3 TT |
3023 | /* A helper function to search a given symtab for a symbol matching |
3024 | ADDR. */ | |
3025 | auto search_symtab = [] (compunit_symtab *symtab, CORE_ADDR addr) -> symbol * | |
aed57c53 | 3026 | { |
af39c5c8 | 3027 | const struct blockvector *bv = symtab->blockvector (); |
71a3c369 | 3028 | |
1f2624a3 | 3029 | for (int i = GLOBAL_BLOCK; i <= STATIC_BLOCK; ++i) |
aed57c53 | 3030 | { |
63d609de | 3031 | const struct block *b = bv->block (i); |
71a3c369 | 3032 | |
548a89df | 3033 | for (struct symbol *sym : block_iterator_range (b)) |
71a3c369 | 3034 | { |
66d7f48f | 3035 | if (sym->aclass () == LOC_STATIC |
4aeddc50 | 3036 | && sym->value_address () == addr) |
1f2624a3 TT |
3037 | return sym; |
3038 | } | |
3039 | } | |
3040 | return nullptr; | |
3041 | }; | |
aed57c53 | 3042 | |
1f2624a3 TT |
3043 | for (objfile *objfile : current_program_space->objfiles ()) |
3044 | { | |
4d080b46 TT |
3045 | /* If this objfile was read with -readnow, then we need to |
3046 | search the symtabs directly. */ | |
3047 | if ((objfile->flags & OBJF_READNOW) != 0) | |
1f2624a3 TT |
3048 | { |
3049 | for (compunit_symtab *symtab : objfile->compunits ()) | |
3050 | { | |
3051 | struct symbol *sym = search_symtab (symtab, address); | |
3052 | if (sym != nullptr) | |
3053 | return sym; | |
3054 | } | |
3055 | } | |
3056 | else | |
3057 | { | |
3058 | struct compunit_symtab *symtab | |
4d080b46 | 3059 | = objfile->find_compunit_symtab_by_address (address); |
1f2624a3 TT |
3060 | if (symtab != NULL) |
3061 | { | |
3062 | struct symbol *sym = search_symtab (symtab, address); | |
3063 | if (sym != nullptr) | |
3064 | return sym; | |
71a3c369 | 3065 | } |
aed57c53 TT |
3066 | } |
3067 | } | |
71a3c369 TT |
3068 | |
3069 | return NULL; | |
3070 | } | |
3071 | ||
c906108c | 3072 | \f |
c5aa993b | 3073 | |
7e73cedf | 3074 | /* Find the source file and line number for a given PC value and SECTION. |
c906108c SS |
3075 | Return a structure containing a symtab pointer, a line number, |
3076 | and a pc range for the entire source line. | |
3077 | The value's .pc field is NOT the specified pc. | |
3078 | NOTCURRENT nonzero means, if specified pc is on a line boundary, | |
3079 | use the line that ends there. Otherwise, in that case, the line | |
3080 | that begins there is used. */ | |
3081 | ||
3082 | /* The big complication here is that a line may start in one file, and end just | |
3083 | before the start of another file. This usually occurs when you #include | |
3084 | code in the middle of a subroutine. To properly find the end of a line's PC | |
3085 | range, we must search all symtabs associated with this compilation unit, and | |
3086 | find the one whose first PC is closer than that of the next line in this | |
3087 | symtab. */ | |
3088 | ||
c906108c | 3089 | struct symtab_and_line |
714835d5 | 3090 | find_pc_sect_line (CORE_ADDR pc, struct obj_section *section, int notcurrent) |
c906108c | 3091 | { |
43f3e411 | 3092 | struct compunit_symtab *cust; |
977a0c16 | 3093 | const linetable *l; |
52f0bd74 | 3094 | int len; |
977a0c16 | 3095 | const linetable_entry *item; |
346d1dfe | 3096 | const struct blockvector *bv; |
7cbd4a93 | 3097 | struct bound_minimal_symbol msymbol; |
c906108c SS |
3098 | |
3099 | /* Info on best line seen so far, and where it starts, and its file. */ | |
3100 | ||
977a0c16 | 3101 | const linetable_entry *best = NULL; |
c906108c SS |
3102 | CORE_ADDR best_end = 0; |
3103 | struct symtab *best_symtab = 0; | |
3104 | ||
3105 | /* Store here the first line number | |
3106 | of a file which contains the line at the smallest pc after PC. | |
3107 | If we don't find a line whose range contains PC, | |
3108 | we will use a line one less than this, | |
3109 | with a range from the start of that file to the first line's pc. */ | |
977a0c16 | 3110 | const linetable_entry *alt = NULL; |
c906108c SS |
3111 | |
3112 | /* Info on best line seen in this file. */ | |
3113 | ||
977a0c16 | 3114 | const linetable_entry *prev; |
c906108c SS |
3115 | |
3116 | /* If this pc is not from the current frame, | |
3117 | it is the address of the end of a call instruction. | |
3118 | Quite likely that is the start of the following statement. | |
3119 | But what we want is the statement containing the instruction. | |
3120 | Fudge the pc to make sure we get that. */ | |
3121 | ||
b77b1eb7 JB |
3122 | /* It's tempting to assume that, if we can't find debugging info for |
3123 | any function enclosing PC, that we shouldn't search for line | |
3124 | number info, either. However, GAS can emit line number info for | |
3125 | assembly files --- very helpful when debugging hand-written | |
3126 | assembly code. In such a case, we'd have no debug info for the | |
3127 | function, but we would have line info. */ | |
648f4f79 | 3128 | |
c906108c SS |
3129 | if (notcurrent) |
3130 | pc -= 1; | |
3131 | ||
c5aa993b | 3132 | /* elz: added this because this function returned the wrong |
c906108c | 3133 | information if the pc belongs to a stub (import/export) |
c378eb4e | 3134 | to call a shlib function. This stub would be anywhere between |
9af17804 | 3135 | two functions in the target, and the line info was erroneously |
c378eb4e MS |
3136 | taken to be the one of the line before the pc. */ |
3137 | ||
c906108c | 3138 | /* RT: Further explanation: |
c5aa993b | 3139 | |
c906108c SS |
3140 | * We have stubs (trampolines) inserted between procedures. |
3141 | * | |
3142 | * Example: "shr1" exists in a shared library, and a "shr1" stub also | |
3143 | * exists in the main image. | |
3144 | * | |
3145 | * In the minimal symbol table, we have a bunch of symbols | |
c378eb4e | 3146 | * sorted by start address. The stubs are marked as "trampoline", |
c906108c SS |
3147 | * the others appear as text. E.g.: |
3148 | * | |
9af17804 | 3149 | * Minimal symbol table for main image |
c906108c SS |
3150 | * main: code for main (text symbol) |
3151 | * shr1: stub (trampoline symbol) | |
3152 | * foo: code for foo (text symbol) | |
3153 | * ... | |
3154 | * Minimal symbol table for "shr1" image: | |
3155 | * ... | |
3156 | * shr1: code for shr1 (text symbol) | |
3157 | * ... | |
3158 | * | |
3159 | * So the code below is trying to detect if we are in the stub | |
3160 | * ("shr1" stub), and if so, find the real code ("shr1" trampoline), | |
3161 | * and if found, do the symbolization from the real-code address | |
3162 | * rather than the stub address. | |
3163 | * | |
3164 | * Assumptions being made about the minimal symbol table: | |
3165 | * 1. lookup_minimal_symbol_by_pc() will return a trampoline only | |
c378eb4e | 3166 | * if we're really in the trampoline.s If we're beyond it (say |
9af17804 | 3167 | * we're in "foo" in the above example), it'll have a closer |
c906108c SS |
3168 | * symbol (the "foo" text symbol for example) and will not |
3169 | * return the trampoline. | |
3170 | * 2. lookup_minimal_symbol_text() will find a real text symbol | |
3171 | * corresponding to the trampoline, and whose address will | |
c378eb4e | 3172 | * be different than the trampoline address. I put in a sanity |
c906108c SS |
3173 | * check for the address being the same, to avoid an |
3174 | * infinite recursion. | |
3175 | */ | |
c5aa993b | 3176 | msymbol = lookup_minimal_symbol_by_pc (pc); |
7cbd4a93 | 3177 | if (msymbol.minsym != NULL) |
60f62e2b | 3178 | if (msymbol.minsym->type () == mst_solib_trampoline) |
c5aa993b | 3179 | { |
77e371c0 | 3180 | struct bound_minimal_symbol mfunsym |
c9d95fa3 | 3181 | = lookup_minimal_symbol_text (msymbol.minsym->linkage_name (), |
77e371c0 TT |
3182 | NULL); |
3183 | ||
3184 | if (mfunsym.minsym == NULL) | |
c5aa993b JM |
3185 | /* I eliminated this warning since it is coming out |
3186 | * in the following situation: | |
3187 | * gdb shmain // test program with shared libraries | |
3188 | * (gdb) break shr1 // function in shared lib | |
3189 | * Warning: In stub for ... | |
9af17804 | 3190 | * In the above situation, the shared lib is not loaded yet, |
c5aa993b JM |
3191 | * so of course we can't find the real func/line info, |
3192 | * but the "break" still works, and the warning is annoying. | |
c378eb4e | 3193 | * So I commented out the warning. RT */ |
3e43a32a | 3194 | /* warning ("In stub for %s; unable to find real function/line info", |
987012b8 | 3195 | msymbol->linkage_name ()); */ |
c378eb4e | 3196 | ; |
c5aa993b | 3197 | /* fall through */ |
4aeddc50 SM |
3198 | else if (mfunsym.value_address () |
3199 | == msymbol.value_address ()) | |
c5aa993b | 3200 | /* Avoid infinite recursion */ |
c378eb4e | 3201 | /* See above comment about why warning is commented out. */ |
3e43a32a | 3202 | /* warning ("In stub for %s; unable to find real function/line info", |
987012b8 | 3203 | msymbol->linkage_name ()); */ |
c378eb4e | 3204 | ; |
c5aa993b JM |
3205 | /* fall through */ |
3206 | else | |
dd69bf7a KB |
3207 | { |
3208 | /* Detect an obvious case of infinite recursion. If this | |
3209 | should occur, we'd like to know about it, so error out, | |
3210 | fatally. */ | |
4aeddc50 | 3211 | if (mfunsym.value_address () == pc) |
f34652de | 3212 | internal_error (_("Infinite recursion detected in find_pc_sect_line;" |
dd69bf7a KB |
3213 | "please file a bug report")); |
3214 | ||
4aeddc50 | 3215 | return find_pc_line (mfunsym.value_address (), 0); |
dd69bf7a | 3216 | } |
c5aa993b | 3217 | } |
c906108c | 3218 | |
51abb421 PA |
3219 | symtab_and_line val; |
3220 | val.pspace = current_program_space; | |
c906108c | 3221 | |
43f3e411 DE |
3222 | cust = find_pc_sect_compunit_symtab (pc, section); |
3223 | if (cust == NULL) | |
c906108c | 3224 | { |
c378eb4e | 3225 | /* If no symbol information, return previous pc. */ |
c906108c SS |
3226 | if (notcurrent) |
3227 | pc++; | |
3228 | val.pc = pc; | |
3229 | return val; | |
3230 | } | |
3231 | ||
af39c5c8 | 3232 | bv = cust->blockvector (); |
1acc9dca | 3233 | struct objfile *objfile = cust->objfile (); |
c906108c SS |
3234 | |
3235 | /* Look at all the symtabs that share this blockvector. | |
3236 | They all have the same apriori range, that we found was right; | |
3237 | but they have different line tables. */ | |
3238 | ||
102cc235 | 3239 | for (symtab *iter_s : cust->filetabs ()) |
c906108c SS |
3240 | { |
3241 | /* Find the best line in this symtab. */ | |
5b607461 | 3242 | l = iter_s->linetable (); |
c906108c | 3243 | if (!l) |
c5aa993b | 3244 | continue; |
c906108c SS |
3245 | len = l->nitems; |
3246 | if (len <= 0) | |
3247 | { | |
3248 | /* I think len can be zero if the symtab lacks line numbers | |
3249 | (e.g. gcc -g1). (Either that or the LINETABLE is NULL; | |
3250 | I'm not sure which, and maybe it depends on the symbol | |
3251 | reader). */ | |
3252 | continue; | |
3253 | } | |
3254 | ||
3255 | prev = NULL; | |
c378eb4e | 3256 | item = l->item; /* Get first line info. */ |
c906108c SS |
3257 | |
3258 | /* Is this file's first line closer than the first lines of other files? | |
dda83cd7 | 3259 | If so, record this file, and its first line, as best alternate. */ |
1acc9dca | 3260 | if (item->pc (objfile) > pc |
0434c3ef | 3261 | && (!alt || item->unrelocated_pc () < alt->unrelocated_pc ())) |
c656bca5 | 3262 | alt = item; |
c906108c | 3263 | |
48e0f38c TT |
3264 | auto pc_compare = [] (const unrelocated_addr &comp_pc, |
3265 | const struct linetable_entry & lhs) | |
7cbe16e9 | 3266 | { |
0434c3ef | 3267 | return comp_pc < lhs.unrelocated_pc (); |
7cbe16e9 | 3268 | }; |
c906108c | 3269 | |
977a0c16 TT |
3270 | const linetable_entry *first = item; |
3271 | const linetable_entry *last = item + len; | |
48e0f38c TT |
3272 | item = (std::upper_bound |
3273 | (first, last, | |
3274 | unrelocated_addr (pc - objfile->text_section_offset ()), | |
3275 | pc_compare)); | |
7cbe16e9 | 3276 | if (item != first) |
aaba0d3a GL |
3277 | { |
3278 | prev = item - 1; /* Found a matching item. */ | |
3279 | /* At this point, prev is a line whose address is <= pc. However, we | |
3280 | don't know if ITEM is pointing to the same statement or not. */ | |
3281 | while (item != last && prev->line == item->line && !item->is_stmt) | |
3282 | item++; | |
3283 | } | |
c906108c SS |
3284 | |
3285 | /* At this point, prev points at the line whose start addr is <= pc, and | |
aaba0d3a | 3286 | item points at the next statement. If we ran off the end of the linetable |
dda83cd7 SM |
3287 | (pc >= start of the last line), then prev == item. If pc < start of |
3288 | the first line, prev will not be set. */ | |
c906108c SS |
3289 | |
3290 | /* Is this file's best line closer than the best in the other files? | |
dda83cd7 SM |
3291 | If so, record this file, and its best line, as best so far. Don't |
3292 | save prev if it represents the end of a function (i.e. line number | |
3293 | 0) instead of a real line. */ | |
c906108c | 3294 | |
0434c3ef TT |
3295 | if (prev && prev->line |
3296 | && (!best || prev->unrelocated_pc () > best->unrelocated_pc ())) | |
c906108c SS |
3297 | { |
3298 | best = prev; | |
43f3e411 | 3299 | best_symtab = iter_s; |
25d53da1 | 3300 | |
8c95582d AB |
3301 | /* If during the binary search we land on a non-statement entry, |
3302 | scan backward through entries at the same address to see if | |
3303 | there is an entry marked as is-statement. In theory this | |
3304 | duplication should have been removed from the line table | |
3305 | during construction, this is just a double check. If the line | |
3306 | table has had the duplication removed then this should be | |
3307 | pretty cheap. */ | |
3308 | if (!best->is_stmt) | |
3309 | { | |
977a0c16 | 3310 | const linetable_entry *tmp = best; |
0434c3ef TT |
3311 | while (tmp > first |
3312 | && (tmp - 1)->unrelocated_pc () == tmp->unrelocated_pc () | |
8c95582d AB |
3313 | && (tmp - 1)->line != 0 && !tmp->is_stmt) |
3314 | --tmp; | |
3315 | if (tmp->is_stmt) | |
3316 | best = tmp; | |
3317 | } | |
3318 | ||
25d53da1 | 3319 | /* Discard BEST_END if it's before the PC of the current BEST. */ |
1acc9dca | 3320 | if (best_end <= best->pc (objfile)) |
25d53da1 | 3321 | best_end = 0; |
c906108c | 3322 | } |
25d53da1 KB |
3323 | |
3324 | /* If another line (denoted by ITEM) is in the linetable and its | |
7cbe16e9 | 3325 | PC is after BEST's PC, but before the current BEST_END, then |
25d53da1 | 3326 | use ITEM's PC as the new best_end. */ |
0434c3ef TT |
3327 | if (best && item < last |
3328 | && item->unrelocated_pc () > best->unrelocated_pc () | |
1acc9dca TT |
3329 | && (best_end == 0 || best_end > item->pc (objfile))) |
3330 | best_end = item->pc (objfile); | |
c906108c SS |
3331 | } |
3332 | ||
3333 | if (!best_symtab) | |
3334 | { | |
e86e87f7 DJ |
3335 | /* If we didn't find any line number info, just return zeros. |
3336 | We used to return alt->line - 1 here, but that could be | |
3337 | anywhere; if we don't have line number info for this PC, | |
3338 | don't make some up. */ | |
3339 | val.pc = pc; | |
c906108c | 3340 | } |
e8717518 FF |
3341 | else if (best->line == 0) |
3342 | { | |
3343 | /* If our best fit is in a range of PC's for which no line | |
3344 | number info is available (line number is zero) then we didn't | |
c378eb4e | 3345 | find any valid line information. */ |
e8717518 FF |
3346 | val.pc = pc; |
3347 | } | |
c906108c SS |
3348 | else |
3349 | { | |
8c95582d | 3350 | val.is_stmt = best->is_stmt; |
c906108c SS |
3351 | val.symtab = best_symtab; |
3352 | val.line = best->line; | |
1acc9dca TT |
3353 | val.pc = best->pc (objfile); |
3354 | if (best_end && (!alt || best_end < alt->pc (objfile))) | |
c906108c SS |
3355 | val.end = best_end; |
3356 | else if (alt) | |
1acc9dca | 3357 | val.end = alt->pc (objfile); |
c906108c | 3358 | else |
63d609de | 3359 | val.end = bv->global_block ()->end (); |
c906108c SS |
3360 | } |
3361 | val.section = section; | |
3362 | return val; | |
3363 | } | |
3364 | ||
c378eb4e | 3365 | /* Backward compatibility (no section). */ |
c906108c SS |
3366 | |
3367 | struct symtab_and_line | |
fba45db2 | 3368 | find_pc_line (CORE_ADDR pc, int notcurrent) |
c906108c | 3369 | { |
714835d5 | 3370 | struct obj_section *section; |
c906108c SS |
3371 | |
3372 | section = find_pc_overlay (pc); | |
31a8f60f AB |
3373 | if (!pc_in_unmapped_range (pc, section)) |
3374 | return find_pc_sect_line (pc, section, notcurrent); | |
3375 | ||
3376 | /* If the original PC was an unmapped address then we translate this to a | |
3377 | mapped address in order to lookup the sal. However, as the user | |
3378 | passed us an unmapped address it makes more sense to return a result | |
3379 | that has the pc and end fields translated to unmapped addresses. */ | |
3380 | pc = overlay_mapped_address (pc, section); | |
3381 | symtab_and_line sal = find_pc_sect_line (pc, section, notcurrent); | |
3382 | sal.pc = overlay_unmapped_address (sal.pc, section); | |
3383 | sal.end = overlay_unmapped_address (sal.end, section); | |
3384 | return sal; | |
c906108c | 3385 | } |
34248c3a | 3386 | |
fe6356de CL |
3387 | /* Compare two symtab_and_line entries. Return true if both have |
3388 | the same line number and the same symtab pointer. That means we | |
3389 | are dealing with two entries from the same line and from the same | |
3390 | source file. | |
3391 | ||
3392 | Return false otherwise. */ | |
3393 | ||
3394 | static bool | |
3395 | sal_line_symtab_matches_p (const symtab_and_line &sal1, | |
3396 | const symtab_and_line &sal2) | |
3397 | { | |
3398 | return sal1.line == sal2.line && sal1.symtab == sal2.symtab; | |
3399 | } | |
3400 | ||
3401 | /* See symtah.h. */ | |
3402 | ||
3403 | std::optional<CORE_ADDR> | |
3404 | find_line_range_start (CORE_ADDR pc) | |
3405 | { | |
3406 | struct symtab_and_line current_sal = find_pc_line (pc, 0); | |
3407 | ||
3408 | if (current_sal.line == 0) | |
3409 | return {}; | |
3410 | ||
3411 | struct symtab_and_line prev_sal = find_pc_line (current_sal.pc - 1, 0); | |
3412 | ||
3413 | /* If the previous entry is for a different line, that means we are already | |
3414 | at the entry with the start PC for this line. */ | |
3415 | if (!sal_line_symtab_matches_p (prev_sal, current_sal)) | |
3416 | return current_sal.pc; | |
3417 | ||
3418 | /* Otherwise, keep looking for entries for the same line but with | |
3419 | smaller PC's. */ | |
3420 | bool done = false; | |
3421 | CORE_ADDR prev_pc; | |
3422 | while (!done) | |
3423 | { | |
3424 | prev_pc = prev_sal.pc; | |
3425 | ||
3426 | prev_sal = find_pc_line (prev_pc - 1, 0); | |
3427 | ||
3428 | /* Did we notice a line change? If so, we are done searching. */ | |
3429 | if (!sal_line_symtab_matches_p (prev_sal, current_sal)) | |
3430 | done = true; | |
3431 | } | |
3432 | ||
3433 | return prev_pc; | |
3434 | } | |
3435 | ||
34248c3a DE |
3436 | /* See symtab.h. */ |
3437 | ||
3438 | struct symtab * | |
3439 | find_pc_line_symtab (CORE_ADDR pc) | |
3440 | { | |
3441 | struct symtab_and_line sal; | |
3442 | ||
3443 | /* This always passes zero for NOTCURRENT to find_pc_line. | |
3444 | There are currently no callers that ever pass non-zero. */ | |
3445 | sal = find_pc_line (pc, 0); | |
3446 | return sal.symtab; | |
3447 | } | |
c906108c | 3448 | \f |
c906108c SS |
3449 | /* Find line number LINE in any symtab whose name is the same as |
3450 | SYMTAB. | |
3451 | ||
3452 | If found, return the symtab that contains the linetable in which it was | |
3453 | found, set *INDEX to the index in the linetable of the best entry | |
ececd218 | 3454 | found, and set *EXACT_MATCH to true if the value returned is an |
c906108c SS |
3455 | exact match. |
3456 | ||
3457 | If not found, return NULL. */ | |
3458 | ||
50641945 | 3459 | struct symtab * |
5accd1a0 | 3460 | find_line_symtab (struct symtab *sym_tab, int line, |
ececd218 | 3461 | int *index, bool *exact_match) |
c906108c | 3462 | { |
6f43c46f | 3463 | int exact = 0; /* Initialized here to avoid a compiler warning. */ |
c906108c SS |
3464 | |
3465 | /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE | |
3466 | so far seen. */ | |
3467 | ||
3468 | int best_index; | |
977a0c16 | 3469 | const struct linetable *best_linetable; |
c906108c SS |
3470 | struct symtab *best_symtab; |
3471 | ||
3472 | /* First try looking it up in the given symtab. */ | |
5b607461 | 3473 | best_linetable = sym_tab->linetable (); |
5accd1a0 | 3474 | best_symtab = sym_tab; |
f8eba3c6 | 3475 | best_index = find_line_common (best_linetable, line, &exact, 0); |
c906108c SS |
3476 | if (best_index < 0 || !exact) |
3477 | { | |
3478 | /* Didn't find an exact match. So we better keep looking for | |
dda83cd7 SM |
3479 | another symtab with the same name. In the case of xcoff, |
3480 | multiple csects for one source file (produced by IBM's FORTRAN | |
3481 | compiler) produce multiple symtabs (this is unavoidable | |
3482 | assuming csects can be at arbitrary places in memory and that | |
3483 | the GLOBAL_BLOCK of a symtab has a begin and end address). */ | |
c906108c SS |
3484 | |
3485 | /* BEST is the smallest linenumber > LINE so far seen, | |
dda83cd7 SM |
3486 | or 0 if none has been seen so far. |
3487 | BEST_INDEX and BEST_LINETABLE identify the item for it. */ | |
c906108c SS |
3488 | int best; |
3489 | ||
c906108c SS |
3490 | if (best_index >= 0) |
3491 | best = best_linetable->item[best_index].line; | |
3492 | else | |
3493 | best = 0; | |
3494 | ||
2030c079 | 3495 | for (objfile *objfile : current_program_space->objfiles ()) |
4d080b46 | 3496 | objfile->expand_symtabs_with_fullname (symtab_to_fullname (sym_tab)); |
51432cca | 3497 | |
2030c079 | 3498 | for (objfile *objfile : current_program_space->objfiles ()) |
8b31193a | 3499 | { |
b669c953 | 3500 | for (compunit_symtab *cu : objfile->compunits ()) |
8b31193a | 3501 | { |
102cc235 | 3502 | for (symtab *s : cu->filetabs ()) |
8b31193a | 3503 | { |
977a0c16 | 3504 | const struct linetable *l; |
8b31193a TT |
3505 | int ind; |
3506 | ||
3507 | if (FILENAME_CMP (sym_tab->filename, s->filename) != 0) | |
3508 | continue; | |
3509 | if (FILENAME_CMP (symtab_to_fullname (sym_tab), | |
3510 | symtab_to_fullname (s)) != 0) | |
3511 | continue; | |
5b607461 | 3512 | l = s->linetable (); |
8b31193a TT |
3513 | ind = find_line_common (l, line, &exact, 0); |
3514 | if (ind >= 0) | |
3515 | { | |
3516 | if (exact) | |
3517 | { | |
3518 | best_index = ind; | |
3519 | best_linetable = l; | |
3520 | best_symtab = s; | |
3521 | goto done; | |
3522 | } | |
3523 | if (best == 0 || l->item[ind].line < best) | |
3524 | { | |
3525 | best = l->item[ind].line; | |
3526 | best_index = ind; | |
3527 | best_linetable = l; | |
3528 | best_symtab = s; | |
3529 | } | |
3530 | } | |
3531 | } | |
3532 | } | |
3533 | } | |
c906108c | 3534 | } |
c5aa993b | 3535 | done: |
c906108c SS |
3536 | if (best_index < 0) |
3537 | return NULL; | |
3538 | ||
3539 | if (index) | |
3540 | *index = best_index; | |
3541 | if (exact_match) | |
ececd218 | 3542 | *exact_match = (exact != 0); |
c906108c SS |
3543 | |
3544 | return best_symtab; | |
3545 | } | |
f8eba3c6 TT |
3546 | |
3547 | /* Given SYMTAB, returns all the PCs function in the symtab that | |
67d89901 TT |
3548 | exactly match LINE. Returns an empty vector if there are no exact |
3549 | matches, but updates BEST_ITEM in this case. */ | |
f8eba3c6 | 3550 | |
67d89901 | 3551 | std::vector<CORE_ADDR> |
f8eba3c6 | 3552 | find_pcs_for_symtab_line (struct symtab *symtab, int line, |
977a0c16 | 3553 | const linetable_entry **best_item) |
f8eba3c6 | 3554 | { |
c656bca5 | 3555 | int start = 0; |
67d89901 | 3556 | std::vector<CORE_ADDR> result; |
1acc9dca | 3557 | struct objfile *objfile = symtab->compunit ()->objfile (); |
f8eba3c6 TT |
3558 | |
3559 | /* First, collect all the PCs that are at this line. */ | |
3560 | while (1) | |
3561 | { | |
3562 | int was_exact; | |
3563 | int idx; | |
3564 | ||
5b607461 | 3565 | idx = find_line_common (symtab->linetable (), line, &was_exact, |
8435453b | 3566 | start); |
f8eba3c6 TT |
3567 | if (idx < 0) |
3568 | break; | |
3569 | ||
3570 | if (!was_exact) | |
3571 | { | |
977a0c16 | 3572 | const linetable_entry *item = &symtab->linetable ()->item[idx]; |
f8eba3c6 | 3573 | |
8c95582d AB |
3574 | if (*best_item == NULL |
3575 | || (item->line < (*best_item)->line && item->is_stmt)) | |
f8eba3c6 TT |
3576 | *best_item = item; |
3577 | ||
3578 | break; | |
3579 | } | |
3580 | ||
1acc9dca | 3581 | result.push_back (symtab->linetable ()->item[idx].pc (objfile)); |
f8eba3c6 TT |
3582 | start = idx + 1; |
3583 | } | |
3584 | ||
3585 | return result; | |
3586 | } | |
3587 | ||
c906108c SS |
3588 | \f |
3589 | /* Set the PC value for a given source file and line number and return true. | |
ececd218 | 3590 | Returns false for invalid line number (and sets the PC to 0). |
c906108c SS |
3591 | The source file is specified with a struct symtab. */ |
3592 | ||
ececd218 | 3593 | bool |
fba45db2 | 3594 | find_line_pc (struct symtab *symtab, int line, CORE_ADDR *pc) |
c906108c | 3595 | { |
977a0c16 | 3596 | const struct linetable *l; |
c906108c SS |
3597 | int ind; |
3598 | ||
3599 | *pc = 0; | |
3600 | if (symtab == 0) | |
ececd218 | 3601 | return false; |
c906108c SS |
3602 | |
3603 | symtab = find_line_symtab (symtab, line, &ind, NULL); | |
3604 | if (symtab != NULL) | |
3605 | { | |
5b607461 | 3606 | l = symtab->linetable (); |
1acc9dca | 3607 | *pc = l->item[ind].pc (symtab->compunit ()->objfile ()); |
ececd218 | 3608 | return true; |
c906108c SS |
3609 | } |
3610 | else | |
ececd218 | 3611 | return false; |
c906108c SS |
3612 | } |
3613 | ||
3614 | /* Find the range of pc values in a line. | |
3615 | Store the starting pc of the line into *STARTPTR | |
3616 | and the ending pc (start of next line) into *ENDPTR. | |
ececd218 CB |
3617 | Returns true to indicate success. |
3618 | Returns false if could not find the specified line. */ | |
c906108c | 3619 | |
ececd218 | 3620 | bool |
fba45db2 KB |
3621 | find_line_pc_range (struct symtab_and_line sal, CORE_ADDR *startptr, |
3622 | CORE_ADDR *endptr) | |
c906108c SS |
3623 | { |
3624 | CORE_ADDR startaddr; | |
3625 | struct symtab_and_line found_sal; | |
3626 | ||
3627 | startaddr = sal.pc; | |
c5aa993b | 3628 | if (startaddr == 0 && !find_line_pc (sal.symtab, sal.line, &startaddr)) |
ececd218 | 3629 | return false; |
c906108c SS |
3630 | |
3631 | /* This whole function is based on address. For example, if line 10 has | |
3632 | two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then | |
3633 | "info line *0x123" should say the line goes from 0x100 to 0x200 | |
3634 | and "info line *0x355" should say the line goes from 0x300 to 0x400. | |
3635 | This also insures that we never give a range like "starts at 0x134 | |
3636 | and ends at 0x12c". */ | |
3637 | ||
3638 | found_sal = find_pc_sect_line (startaddr, sal.section, 0); | |
3639 | if (found_sal.line != sal.line) | |
3640 | { | |
3641 | /* The specified line (sal) has zero bytes. */ | |
3642 | *startptr = found_sal.pc; | |
3643 | *endptr = found_sal.pc; | |
3644 | } | |
3645 | else | |
3646 | { | |
3647 | *startptr = found_sal.pc; | |
3648 | *endptr = found_sal.end; | |
3649 | } | |
ececd218 | 3650 | return true; |
c906108c SS |
3651 | } |
3652 | ||
3653 | /* Given a line table and a line number, return the index into the line | |
3654 | table for the pc of the nearest line whose number is >= the specified one. | |
3655 | Return -1 if none is found. The value is >= 0 if it is an index. | |
f8eba3c6 | 3656 | START is the index at which to start searching the line table. |
c906108c SS |
3657 | |
3658 | Set *EXACT_MATCH nonzero if the value returned is an exact match. */ | |
3659 | ||
3660 | static int | |
977a0c16 | 3661 | find_line_common (const linetable *l, int lineno, |
f8eba3c6 | 3662 | int *exact_match, int start) |
c906108c | 3663 | { |
52f0bd74 AC |
3664 | int i; |
3665 | int len; | |
c906108c SS |
3666 | |
3667 | /* BEST is the smallest linenumber > LINENO so far seen, | |
3668 | or 0 if none has been seen so far. | |
3669 | BEST_INDEX identifies the item for it. */ | |
3670 | ||
3671 | int best_index = -1; | |
3672 | int best = 0; | |
3673 | ||
b7589f7d DJ |
3674 | *exact_match = 0; |
3675 | ||
c906108c SS |
3676 | if (lineno <= 0) |
3677 | return -1; | |
3678 | if (l == 0) | |
3679 | return -1; | |
3680 | ||
3681 | len = l->nitems; | |
f8eba3c6 | 3682 | for (i = start; i < len; i++) |
c906108c | 3683 | { |
977a0c16 | 3684 | const linetable_entry *item = &(l->item[i]); |
c906108c | 3685 | |
8c95582d AB |
3686 | /* Ignore non-statements. */ |
3687 | if (!item->is_stmt) | |
3688 | continue; | |
3689 | ||
c906108c SS |
3690 | if (item->line == lineno) |
3691 | { | |
3692 | /* Return the first (lowest address) entry which matches. */ | |
3693 | *exact_match = 1; | |
3694 | return i; | |
3695 | } | |
3696 | ||
3697 | if (item->line > lineno && (best == 0 || item->line < best)) | |
3698 | { | |
3699 | best = item->line; | |
3700 | best_index = i; | |
3701 | } | |
3702 | } | |
3703 | ||
3704 | /* If we got here, we didn't get an exact match. */ | |
c906108c SS |
3705 | return best_index; |
3706 | } | |
3707 | ||
ececd218 | 3708 | bool |
fba45db2 | 3709 | find_pc_line_pc_range (CORE_ADDR pc, CORE_ADDR *startptr, CORE_ADDR *endptr) |
c906108c SS |
3710 | { |
3711 | struct symtab_and_line sal; | |
433759f7 | 3712 | |
c906108c SS |
3713 | sal = find_pc_line (pc, 0); |
3714 | *startptr = sal.pc; | |
3715 | *endptr = sal.end; | |
3716 | return sal.symtab != 0; | |
3717 | } | |
3718 | ||
cd2bb709 PA |
3719 | /* Helper for find_function_start_sal. Does most of the work, except |
3720 | setting the sal's symbol. */ | |
aab2f208 | 3721 | |
cd2bb709 PA |
3722 | static symtab_and_line |
3723 | find_function_start_sal_1 (CORE_ADDR func_addr, obj_section *section, | |
3724 | bool funfirstline) | |
aab2f208 | 3725 | { |
42ddae10 | 3726 | symtab_and_line sal = find_pc_sect_line (func_addr, section, 0); |
aab2f208 | 3727 | |
6e22494e | 3728 | if (funfirstline && sal.symtab != NULL |
c6159652 | 3729 | && (sal.symtab->compunit ()->locations_valid () |
1ee2e9f9 | 3730 | || sal.symtab->language () == language_asm)) |
6e22494e | 3731 | { |
3c86fae3 | 3732 | struct gdbarch *gdbarch = sal.symtab->compunit ()->objfile ()->arch (); |
141c5cc4 | 3733 | |
42ddae10 | 3734 | sal.pc = func_addr; |
141c5cc4 JK |
3735 | if (gdbarch_skip_entrypoint_p (gdbarch)) |
3736 | sal.pc = gdbarch_skip_entrypoint (gdbarch, sal.pc); | |
6e22494e JK |
3737 | return sal; |
3738 | } | |
3739 | ||
aab2f208 | 3740 | /* We always should have a line for the function start address. |
42ddae10 | 3741 | If we don't, something is odd. Create a plain SAL referring |
aab2f208 DE |
3742 | just the PC and hope that skip_prologue_sal (if requested) |
3743 | can find a line number for after the prologue. */ | |
42ddae10 | 3744 | if (sal.pc < func_addr) |
aab2f208 | 3745 | { |
51abb421 | 3746 | sal = {}; |
aab2f208 | 3747 | sal.pspace = current_program_space; |
42ddae10 | 3748 | sal.pc = func_addr; |
08be3fe3 | 3749 | sal.section = section; |
aab2f208 DE |
3750 | } |
3751 | ||
3752 | if (funfirstline) | |
3753 | skip_prologue_sal (&sal); | |
3754 | ||
3755 | return sal; | |
3756 | } | |
3757 | ||
42ddae10 PA |
3758 | /* See symtab.h. */ |
3759 | ||
cd2bb709 PA |
3760 | symtab_and_line |
3761 | find_function_start_sal (CORE_ADDR func_addr, obj_section *section, | |
3762 | bool funfirstline) | |
3763 | { | |
3764 | symtab_and_line sal | |
3765 | = find_function_start_sal_1 (func_addr, section, funfirstline); | |
3766 | ||
3767 | /* find_function_start_sal_1 does a linetable search, so it finds | |
3768 | the symtab and linenumber, but not a symbol. Fill in the | |
3769 | function symbol too. */ | |
3770 | sal.symbol = find_pc_sect_containing_function (sal.pc, sal.section); | |
3771 | ||
3772 | return sal; | |
3773 | } | |
3774 | ||
3775 | /* See symtab.h. */ | |
3776 | ||
42ddae10 PA |
3777 | symtab_and_line |
3778 | find_function_start_sal (symbol *sym, bool funfirstline) | |
3779 | { | |
42ddae10 | 3780 | symtab_and_line sal |
6395b628 | 3781 | = find_function_start_sal_1 (sym->value_block ()->entry_pc (), |
e19b2d94 | 3782 | sym->obj_section (sym->objfile ()), |
cd2bb709 | 3783 | funfirstline); |
42ddae10 PA |
3784 | sal.symbol = sym; |
3785 | return sal; | |
3786 | } | |
3787 | ||
3788 | ||
8c7a1ee8 EZ |
3789 | /* Given a function start address FUNC_ADDR and SYMTAB, find the first |
3790 | address for that function that has an entry in SYMTAB's line info | |
3791 | table. If such an entry cannot be found, return FUNC_ADDR | |
3792 | unaltered. */ | |
eca864fe | 3793 | |
70221824 | 3794 | static CORE_ADDR |
8c7a1ee8 EZ |
3795 | skip_prologue_using_lineinfo (CORE_ADDR func_addr, struct symtab *symtab) |
3796 | { | |
3797 | CORE_ADDR func_start, func_end; | |
977a0c16 | 3798 | const struct linetable *l; |
952a6d41 | 3799 | int i; |
8c7a1ee8 EZ |
3800 | |
3801 | /* Give up if this symbol has no lineinfo table. */ | |
5b607461 | 3802 | l = symtab->linetable (); |
8c7a1ee8 EZ |
3803 | if (l == NULL) |
3804 | return func_addr; | |
3805 | ||
3806 | /* Get the range for the function's PC values, or give up if we | |
3807 | cannot, for some reason. */ | |
3808 | if (!find_pc_partial_function (func_addr, NULL, &func_start, &func_end)) | |
3809 | return func_addr; | |
3810 | ||
1acc9dca TT |
3811 | struct objfile *objfile = symtab->compunit ()->objfile (); |
3812 | ||
8c7a1ee8 EZ |
3813 | /* Linetable entries are ordered by PC values, see the commentary in |
3814 | symtab.h where `struct linetable' is defined. Thus, the first | |
3815 | entry whose PC is in the range [FUNC_START..FUNC_END[ is the | |
3816 | address we are looking for. */ | |
3817 | for (i = 0; i < l->nitems; i++) | |
3818 | { | |
977a0c16 | 3819 | const linetable_entry *item = &(l->item[i]); |
1acc9dca | 3820 | CORE_ADDR item_pc = item->pc (objfile); |
8c7a1ee8 EZ |
3821 | |
3822 | /* Don't use line numbers of zero, they mark special entries in | |
3823 | the table. See the commentary on symtab.h before the | |
3824 | definition of struct linetable. */ | |
1acc9dca TT |
3825 | if (item->line > 0 && func_start <= item_pc && item_pc < func_end) |
3826 | return item_pc; | |
8c7a1ee8 EZ |
3827 | } |
3828 | ||
3829 | return func_addr; | |
3830 | } | |
3831 | ||
cc96ae7f LS |
3832 | /* Try to locate the address where a breakpoint should be placed past the |
3833 | prologue of function starting at FUNC_ADDR using the line table. | |
3834 | ||
3835 | Return the address associated with the first entry in the line-table for | |
3836 | the function starting at FUNC_ADDR which has prologue_end set to true if | |
3837 | such entry exist, otherwise return an empty optional. */ | |
3838 | ||
6b09f134 | 3839 | static std::optional<CORE_ADDR> |
cc96ae7f LS |
3840 | skip_prologue_using_linetable (CORE_ADDR func_addr) |
3841 | { | |
3842 | CORE_ADDR start_pc, end_pc; | |
3843 | ||
3844 | if (!find_pc_partial_function (func_addr, nullptr, &start_pc, &end_pc)) | |
3845 | return {}; | |
3846 | ||
3847 | const struct symtab_and_line prologue_sal = find_pc_line (start_pc, 0); | |
3848 | if (prologue_sal.symtab != nullptr | |
3849 | && prologue_sal.symtab->language () != language_asm) | |
3850 | { | |
977a0c16 | 3851 | const linetable *linetable = prologue_sal.symtab->linetable (); |
cc96ae7f | 3852 | |
1acc9dca | 3853 | struct objfile *objfile = prologue_sal.symtab->compunit ()->objfile (); |
48e0f38c TT |
3854 | |
3855 | unrelocated_addr unrel_start | |
3856 | = unrelocated_addr (start_pc - objfile->text_section_offset ()); | |
3857 | unrelocated_addr unrel_end | |
3858 | = unrelocated_addr (end_pc - objfile->text_section_offset ()); | |
1acc9dca | 3859 | |
cc96ae7f | 3860 | auto it = std::lower_bound |
48e0f38c TT |
3861 | (linetable->item, linetable->item + linetable->nitems, unrel_start, |
3862 | [] (const linetable_entry <e, unrelocated_addr pc) | |
cc96ae7f | 3863 | { |
0434c3ef | 3864 | return lte.unrelocated_pc () < pc; |
cc96ae7f LS |
3865 | }); |
3866 | ||
3867 | for (; | |
48e0f38c | 3868 | (it < linetable->item + linetable->nitems |
0434c3ef | 3869 | && it->unrelocated_pc () < unrel_end); |
cc96ae7f LS |
3870 | it++) |
3871 | if (it->prologue_end) | |
1acc9dca | 3872 | return {it->pc (objfile)}; |
cc96ae7f LS |
3873 | } |
3874 | ||
3875 | return {}; | |
3876 | } | |
3877 | ||
059acae7 UW |
3878 | /* Adjust SAL to the first instruction past the function prologue. |
3879 | If the PC was explicitly specified, the SAL is not changed. | |
5b0e2db4 AB |
3880 | If the line number was explicitly specified then the SAL can still be |
3881 | updated, unless the language for SAL is assembler, in which case the SAL | |
3882 | will be left unchanged. | |
3883 | If SAL is already past the prologue, then do nothing. */ | |
eca864fe | 3884 | |
059acae7 UW |
3885 | void |
3886 | skip_prologue_sal (struct symtab_and_line *sal) | |
3887 | { | |
3888 | struct symbol *sym; | |
3889 | struct symtab_and_line start_sal; | |
8be455d7 | 3890 | CORE_ADDR pc, saved_pc; |
059acae7 UW |
3891 | struct obj_section *section; |
3892 | const char *name; | |
3893 | struct objfile *objfile; | |
3894 | struct gdbarch *gdbarch; | |
3977b71f | 3895 | const struct block *b, *function_block; |
8be455d7 | 3896 | int force_skip, skip; |
c906108c | 3897 | |
a4b411d6 | 3898 | /* Do not change the SAL if PC was specified explicitly. */ |
059acae7 UW |
3899 | if (sal->explicit_pc) |
3900 | return; | |
6c95b8df | 3901 | |
5b0e2db4 AB |
3902 | /* In assembly code, if the user asks for a specific line then we should |
3903 | not adjust the SAL. The user already has instruction level | |
3904 | visibility in this case, so selecting a line other than one requested | |
3905 | is likely to be the wrong choice. */ | |
3906 | if (sal->symtab != nullptr | |
3907 | && sal->explicit_line | |
1ee2e9f9 | 3908 | && sal->symtab->language () == language_asm) |
5b0e2db4 AB |
3909 | return; |
3910 | ||
5ed8105e PA |
3911 | scoped_restore_current_pspace_and_thread restore_pspace_thread; |
3912 | ||
059acae7 | 3913 | switch_to_program_space_and_thread (sal->pspace); |
6c95b8df | 3914 | |
059acae7 UW |
3915 | sym = find_pc_sect_function (sal->pc, sal->section); |
3916 | if (sym != NULL) | |
bccdca4a | 3917 | { |
e19b2d94 | 3918 | objfile = sym->objfile (); |
6395b628 | 3919 | pc = sym->value_block ()->entry_pc (); |
ebbc3a7d | 3920 | section = sym->obj_section (objfile); |
987012b8 | 3921 | name = sym->linkage_name (); |
c906108c | 3922 | } |
059acae7 UW |
3923 | else |
3924 | { | |
7c7b6655 | 3925 | struct bound_minimal_symbol msymbol |
dda83cd7 | 3926 | = lookup_minimal_symbol_by_pc_section (sal->pc, sal->section); |
433759f7 | 3927 | |
7c7b6655 | 3928 | if (msymbol.minsym == NULL) |
5ed8105e | 3929 | return; |
059acae7 | 3930 | |
7c7b6655 | 3931 | objfile = msymbol.objfile; |
4aeddc50 | 3932 | pc = msymbol.value_address (); |
ebbc3a7d | 3933 | section = msymbol.minsym->obj_section (objfile); |
c9d95fa3 | 3934 | name = msymbol.minsym->linkage_name (); |
059acae7 UW |
3935 | } |
3936 | ||
08feed99 | 3937 | gdbarch = objfile->arch (); |
059acae7 | 3938 | |
8be455d7 JK |
3939 | /* Process the prologue in two passes. In the first pass try to skip the |
3940 | prologue (SKIP is true) and verify there is a real need for it (indicated | |
3941 | by FORCE_SKIP). If no such reason was found run a second pass where the | |
3942 | prologue is not skipped (SKIP is false). */ | |
059acae7 | 3943 | |
8be455d7 JK |
3944 | skip = 1; |
3945 | force_skip = 1; | |
059acae7 | 3946 | |
8be455d7 JK |
3947 | /* Be conservative - allow direct PC (without skipping prologue) only if we |
3948 | have proven the CU (Compilation Unit) supports it. sal->SYMTAB does not | |
3949 | have to be set by the caller so we use SYM instead. */ | |
08be3fe3 | 3950 | if (sym != NULL |
4206d69e | 3951 | && sym->symtab ()->compunit ()->locations_valid ()) |
8be455d7 | 3952 | force_skip = 0; |
059acae7 | 3953 | |
8be455d7 JK |
3954 | saved_pc = pc; |
3955 | do | |
c906108c | 3956 | { |
8be455d7 | 3957 | pc = saved_pc; |
4309257c | 3958 | |
cc96ae7f | 3959 | /* Check if the compiler explicitly indicated where a breakpoint should |
287de656 | 3960 | be placed to skip the prologue. */ |
6109f7a3 | 3961 | if (!ignore_prologue_end_flag && skip) |
cc96ae7f | 3962 | { |
6b09f134 | 3963 | std::optional<CORE_ADDR> linetable_pc |
cc96ae7f LS |
3964 | = skip_prologue_using_linetable (pc); |
3965 | if (linetable_pc) | |
3966 | { | |
3967 | pc = *linetable_pc; | |
3968 | start_sal = find_pc_sect_line (pc, section, 0); | |
3969 | force_skip = 1; | |
3970 | continue; | |
3971 | } | |
3972 | } | |
3973 | ||
8be455d7 JK |
3974 | /* If the function is in an unmapped overlay, use its unmapped LMA address, |
3975 | so that gdbarch_skip_prologue has something unique to work on. */ | |
3976 | if (section_is_overlay (section) && !section_is_mapped (section)) | |
3977 | pc = overlay_unmapped_address (pc, section); | |
3978 | ||
3979 | /* Skip "first line" of function (which is actually its prologue). */ | |
3980 | pc += gdbarch_deprecated_function_start_offset (gdbarch); | |
591a12a1 | 3981 | if (gdbarch_skip_entrypoint_p (gdbarch)) |
dda83cd7 | 3982 | pc = gdbarch_skip_entrypoint (gdbarch, pc); |
8be455d7 | 3983 | if (skip) |
46a62268 | 3984 | pc = gdbarch_skip_prologue_noexcept (gdbarch, pc); |
8be455d7 JK |
3985 | |
3986 | /* For overlays, map pc back into its mapped VMA range. */ | |
3987 | pc = overlay_mapped_address (pc, section); | |
3988 | ||
3989 | /* Calculate line number. */ | |
059acae7 | 3990 | start_sal = find_pc_sect_line (pc, section, 0); |
8be455d7 JK |
3991 | |
3992 | /* Check if gdbarch_skip_prologue left us in mid-line, and the next | |
3993 | line is still part of the same function. */ | |
3994 | if (skip && start_sal.pc != pc | |
6395b628 | 3995 | && (sym ? (sym->value_block ()->entry_pc () <= start_sal.end |
4b8791e1 | 3996 | && start_sal.end < sym->value_block()->end ()) |
7cbd4a93 TT |
3997 | : (lookup_minimal_symbol_by_pc_section (start_sal.end, section).minsym |
3998 | == lookup_minimal_symbol_by_pc_section (pc, section).minsym))) | |
8be455d7 JK |
3999 | { |
4000 | /* First pc of next line */ | |
4001 | pc = start_sal.end; | |
4002 | /* Recalculate the line number (might not be N+1). */ | |
4003 | start_sal = find_pc_sect_line (pc, section, 0); | |
4004 | } | |
4005 | ||
4006 | /* On targets with executable formats that don't have a concept of | |
4007 | constructors (ELF with .init has, PE doesn't), gcc emits a call | |
4008 | to `__main' in `main' between the prologue and before user | |
4009 | code. */ | |
4010 | if (gdbarch_skip_main_prologue_p (gdbarch) | |
7ccffd7c | 4011 | && name && strcmp_iw (name, "main") == 0) |
8be455d7 JK |
4012 | { |
4013 | pc = gdbarch_skip_main_prologue (gdbarch, pc); | |
4014 | /* Recalculate the line number (might not be N+1). */ | |
4015 | start_sal = find_pc_sect_line (pc, section, 0); | |
4016 | force_skip = 1; | |
4017 | } | |
4309257c | 4018 | } |
8be455d7 | 4019 | while (!force_skip && skip--); |
4309257c | 4020 | |
8c7a1ee8 EZ |
4021 | /* If we still don't have a valid source line, try to find the first |
4022 | PC in the lineinfo table that belongs to the same function. This | |
4023 | happens with COFF debug info, which does not seem to have an | |
4024 | entry in lineinfo table for the code after the prologue which has | |
4025 | no direct relation to source. For example, this was found to be | |
4026 | the case with the DJGPP target using "gcc -gcoff" when the | |
4027 | compiler inserted code after the prologue to make sure the stack | |
4028 | is aligned. */ | |
8be455d7 | 4029 | if (!force_skip && sym && start_sal.symtab == NULL) |
8c7a1ee8 | 4030 | { |
4206d69e | 4031 | pc = skip_prologue_using_lineinfo (pc, sym->symtab ()); |
8c7a1ee8 | 4032 | /* Recalculate the line number. */ |
059acae7 | 4033 | start_sal = find_pc_sect_line (pc, section, 0); |
8c7a1ee8 EZ |
4034 | } |
4035 | ||
059acae7 UW |
4036 | /* If we're already past the prologue, leave SAL unchanged. Otherwise |
4037 | forward SAL to the end of the prologue. */ | |
4038 | if (sal->pc >= pc) | |
4039 | return; | |
4040 | ||
4041 | sal->pc = pc; | |
4042 | sal->section = section; | |
059acae7 UW |
4043 | sal->symtab = start_sal.symtab; |
4044 | sal->line = start_sal.line; | |
4045 | sal->end = start_sal.end; | |
c906108c | 4046 | |
edb3359d DJ |
4047 | /* Check if we are now inside an inlined function. If we can, |
4048 | use the call site of the function instead. */ | |
059acae7 | 4049 | b = block_for_pc_sect (sal->pc, sal->section); |
edb3359d DJ |
4050 | function_block = NULL; |
4051 | while (b != NULL) | |
4052 | { | |
a4dfe747 | 4053 | if (b->function () != NULL && b->inlined_p ()) |
edb3359d | 4054 | function_block = b; |
6c00f721 | 4055 | else if (b->function () != NULL) |
edb3359d | 4056 | break; |
f135fe72 | 4057 | b = b->superblock (); |
edb3359d DJ |
4058 | } |
4059 | if (function_block != NULL | |
6c00f721 | 4060 | && function_block->function ()->line () != 0) |
edb3359d | 4061 | { |
6c00f721 SM |
4062 | sal->line = function_block->function ()->line (); |
4063 | sal->symtab = function_block->function ()->symtab (); | |
edb3359d | 4064 | } |
c906108c | 4065 | } |
50641945 | 4066 | |
f1f58506 DE |
4067 | /* Given PC at the function's start address, attempt to find the |
4068 | prologue end using SAL information. Return zero if the skip fails. | |
4069 | ||
4070 | A non-optimized prologue traditionally has one SAL for the function | |
4071 | and a second for the function body. A single line function has | |
4072 | them both pointing at the same line. | |
4073 | ||
4074 | An optimized prologue is similar but the prologue may contain | |
4075 | instructions (SALs) from the instruction body. Need to skip those | |
4076 | while not getting into the function body. | |
4077 | ||
4078 | The functions end point and an increasing SAL line are used as | |
4079 | indicators of the prologue's endpoint. | |
4080 | ||
4081 | This code is based on the function refine_prologue_limit | |
4082 | (found in ia64). */ | |
4083 | ||
4084 | CORE_ADDR | |
4085 | skip_prologue_using_sal (struct gdbarch *gdbarch, CORE_ADDR func_addr) | |
4086 | { | |
4087 | struct symtab_and_line prologue_sal; | |
4088 | CORE_ADDR start_pc; | |
4089 | CORE_ADDR end_pc; | |
4090 | const struct block *bl; | |
4091 | ||
4092 | /* Get an initial range for the function. */ | |
4093 | find_pc_partial_function (func_addr, NULL, &start_pc, &end_pc); | |
4094 | start_pc += gdbarch_deprecated_function_start_offset (gdbarch); | |
4095 | ||
4096 | prologue_sal = find_pc_line (start_pc, 0); | |
4097 | if (prologue_sal.line != 0) | |
4098 | { | |
4099 | /* For languages other than assembly, treat two consecutive line | |
4100 | entries at the same address as a zero-instruction prologue. | |
4101 | The GNU assembler emits separate line notes for each instruction | |
4102 | in a multi-instruction macro, but compilers generally will not | |
4103 | do this. */ | |
1ee2e9f9 | 4104 | if (prologue_sal.symtab->language () != language_asm) |
f1f58506 | 4105 | { |
1acc9dca TT |
4106 | struct objfile *objfile |
4107 | = prologue_sal.symtab->compunit ()->objfile (); | |
977a0c16 | 4108 | const linetable *linetable = prologue_sal.symtab->linetable (); |
e84060b4 | 4109 | gdb_assert (linetable->nitems > 0); |
f1f58506 DE |
4110 | int idx = 0; |
4111 | ||
4112 | /* Skip any earlier lines, and any end-of-sequence marker | |
4113 | from a previous function. */ | |
e84060b4 AB |
4114 | while (idx + 1 < linetable->nitems |
4115 | && (linetable->item[idx].pc (objfile) != prologue_sal.pc | |
4116 | || linetable->item[idx].line == 0)) | |
f1f58506 DE |
4117 | idx++; |
4118 | ||
e84060b4 | 4119 | if (idx + 1 < linetable->nitems |
f1f58506 | 4120 | && linetable->item[idx+1].line != 0 |
1acc9dca | 4121 | && linetable->item[idx+1].pc (objfile) == start_pc) |
f1f58506 DE |
4122 | return start_pc; |
4123 | } | |
4124 | ||
4125 | /* If there is only one sal that covers the entire function, | |
4126 | then it is probably a single line function, like | |
4127 | "foo(){}". */ | |
4128 | if (prologue_sal.end >= end_pc) | |
4129 | return 0; | |
4130 | ||
4131 | while (prologue_sal.end < end_pc) | |
4132 | { | |
4133 | struct symtab_and_line sal; | |
4134 | ||
4135 | sal = find_pc_line (prologue_sal.end, 0); | |
4136 | if (sal.line == 0) | |
4137 | break; | |
4138 | /* Assume that a consecutive SAL for the same (or larger) | |
4139 | line mark the prologue -> body transition. */ | |
4140 | if (sal.line >= prologue_sal.line) | |
4141 | break; | |
4142 | /* Likewise if we are in a different symtab altogether | |
4143 | (e.g. within a file included via #include). */ | |
4144 | if (sal.symtab != prologue_sal.symtab) | |
4145 | break; | |
4146 | ||
4147 | /* The line number is smaller. Check that it's from the | |
4148 | same function, not something inlined. If it's inlined, | |
4149 | then there is no point comparing the line numbers. */ | |
4150 | bl = block_for_pc (prologue_sal.end); | |
4151 | while (bl) | |
4152 | { | |
a4dfe747 | 4153 | if (bl->inlined_p ()) |
f1f58506 | 4154 | break; |
6c00f721 | 4155 | if (bl->function ()) |
f1f58506 DE |
4156 | { |
4157 | bl = NULL; | |
4158 | break; | |
4159 | } | |
f135fe72 | 4160 | bl = bl->superblock (); |
f1f58506 DE |
4161 | } |
4162 | if (bl != NULL) | |
4163 | break; | |
4164 | ||
4165 | /* The case in which compiler's optimizer/scheduler has | |
4166 | moved instructions into the prologue. We look ahead in | |
4167 | the function looking for address ranges whose | |
4168 | corresponding line number is less the first one that we | |
4169 | found for the function. This is more conservative then | |
4170 | refine_prologue_limit which scans a large number of SALs | |
4171 | looking for any in the prologue. */ | |
4172 | prologue_sal = sal; | |
4173 | } | |
4174 | } | |
4175 | ||
4176 | if (prologue_sal.end < end_pc) | |
4177 | /* Return the end of this line, or zero if we could not find a | |
4178 | line. */ | |
4179 | return prologue_sal.end; | |
4180 | else | |
4181 | /* Don't return END_PC, which is past the end of the function. */ | |
4182 | return prologue_sal.pc; | |
4183 | } | |
bf223d3e PA |
4184 | |
4185 | /* See symtab.h. */ | |
4186 | ||
528b729b GL |
4187 | std::optional<CORE_ADDR> |
4188 | find_epilogue_using_linetable (CORE_ADDR func_addr) | |
4189 | { | |
4190 | CORE_ADDR start_pc, end_pc; | |
4191 | ||
4192 | if (!find_pc_partial_function (func_addr, nullptr, &start_pc, &end_pc)) | |
4193 | return {}; | |
4194 | ||
4195 | const struct symtab_and_line sal = find_pc_line (start_pc, 0); | |
4196 | if (sal.symtab != nullptr && sal.symtab->language () != language_asm) | |
4197 | { | |
4198 | struct objfile *objfile = sal.symtab->compunit ()->objfile (); | |
4199 | unrelocated_addr unrel_start | |
4200 | = unrelocated_addr (start_pc - objfile->text_section_offset ()); | |
4201 | unrelocated_addr unrel_end | |
4202 | = unrelocated_addr (end_pc - objfile->text_section_offset ()); | |
4203 | ||
4204 | const linetable *linetable = sal.symtab->linetable (); | |
4205 | /* This should find the last linetable entry of the current function. | |
4206 | It is probably where the epilogue begins, but since the DWARF 5 | |
4207 | spec doesn't guarantee it, we iterate backwards through the function | |
4208 | until we either find it or are sure that it doesn't exist. */ | |
4209 | auto it = std::lower_bound | |
4210 | (linetable->item, linetable->item + linetable->nitems, unrel_end, | |
4211 | [] (const linetable_entry <e, unrelocated_addr pc) | |
4212 | { | |
4213 | return lte.unrelocated_pc () < pc; | |
4214 | }); | |
4215 | ||
4216 | while (it->unrelocated_pc () >= unrel_start) | |
4217 | { | |
4218 | if (it->epilogue_begin) | |
4219 | return {it->pc (objfile)}; | |
4220 | it --; | |
4221 | } | |
4222 | } | |
4223 | return {}; | |
4224 | } | |
4225 | ||
4226 | /* See symtab.h. */ | |
4227 | ||
bf223d3e PA |
4228 | symbol * |
4229 | find_function_alias_target (bound_minimal_symbol msymbol) | |
4230 | { | |
4024cf2b PA |
4231 | CORE_ADDR func_addr; |
4232 | if (!msymbol_is_function (msymbol.objfile, msymbol.minsym, &func_addr)) | |
bf223d3e PA |
4233 | return NULL; |
4234 | ||
4024cf2b | 4235 | symbol *sym = find_pc_function (func_addr); |
bf223d3e | 4236 | if (sym != NULL |
66d7f48f | 4237 | && sym->aclass () == LOC_BLOCK |
6395b628 | 4238 | && sym->value_block ()->entry_pc () == func_addr) |
bf223d3e PA |
4239 | return sym; |
4240 | ||
4241 | return NULL; | |
4242 | } | |
4243 | ||
f1f58506 | 4244 | \f |
c906108c SS |
4245 | /* If P is of the form "operator[ \t]+..." where `...' is |
4246 | some legitimate operator text, return a pointer to the | |
4247 | beginning of the substring of the operator text. | |
4248 | Otherwise, return "". */ | |
eca864fe | 4249 | |
96142726 TT |
4250 | static const char * |
4251 | operator_chars (const char *p, const char **end) | |
c906108c SS |
4252 | { |
4253 | *end = ""; | |
8090b426 | 4254 | if (!startswith (p, CP_OPERATOR_STR)) |
c906108c | 4255 | return *end; |
8090b426 | 4256 | p += CP_OPERATOR_LEN; |
c906108c SS |
4257 | |
4258 | /* Don't get faked out by `operator' being part of a longer | |
4259 | identifier. */ | |
c5aa993b | 4260 | if (isalpha (*p) || *p == '_' || *p == '$' || *p == '\0') |
c906108c SS |
4261 | return *end; |
4262 | ||
4263 | /* Allow some whitespace between `operator' and the operator symbol. */ | |
4264 | while (*p == ' ' || *p == '\t') | |
4265 | p++; | |
4266 | ||
c378eb4e | 4267 | /* Recognize 'operator TYPENAME'. */ |
c906108c | 4268 | |
c5aa993b | 4269 | if (isalpha (*p) || *p == '_' || *p == '$') |
c906108c | 4270 | { |
96142726 | 4271 | const char *q = p + 1; |
433759f7 | 4272 | |
c5aa993b | 4273 | while (isalnum (*q) || *q == '_' || *q == '$') |
c906108c SS |
4274 | q++; |
4275 | *end = q; | |
4276 | return p; | |
4277 | } | |
4278 | ||
53e8ad3d MS |
4279 | while (*p) |
4280 | switch (*p) | |
4281 | { | |
4282 | case '\\': /* regexp quoting */ | |
4283 | if (p[1] == '*') | |
4284 | { | |
3e43a32a | 4285 | if (p[2] == '=') /* 'operator\*=' */ |
53e8ad3d MS |
4286 | *end = p + 3; |
4287 | else /* 'operator\*' */ | |
4288 | *end = p + 2; | |
4289 | return p; | |
4290 | } | |
4291 | else if (p[1] == '[') | |
4292 | { | |
4293 | if (p[2] == ']') | |
3e43a32a MS |
4294 | error (_("mismatched quoting on brackets, " |
4295 | "try 'operator\\[\\]'")); | |
53e8ad3d MS |
4296 | else if (p[2] == '\\' && p[3] == ']') |
4297 | { | |
4298 | *end = p + 4; /* 'operator\[\]' */ | |
4299 | return p; | |
4300 | } | |
4301 | else | |
8a3fe4f8 | 4302 | error (_("nothing is allowed between '[' and ']'")); |
53e8ad3d | 4303 | } |
9af17804 | 4304 | else |
53e8ad3d | 4305 | { |
85102364 | 4306 | /* Gratuitous quote: skip it and move on. */ |
53e8ad3d MS |
4307 | p++; |
4308 | continue; | |
4309 | } | |
4310 | break; | |
4311 | case '!': | |
4312 | case '=': | |
4313 | case '*': | |
4314 | case '/': | |
4315 | case '%': | |
4316 | case '^': | |
4317 | if (p[1] == '=') | |
4318 | *end = p + 2; | |
4319 | else | |
4320 | *end = p + 1; | |
4321 | return p; | |
4322 | case '<': | |
4323 | case '>': | |
4324 | case '+': | |
4325 | case '-': | |
4326 | case '&': | |
4327 | case '|': | |
4328 | if (p[0] == '-' && p[1] == '>') | |
4329 | { | |
c378eb4e | 4330 | /* Struct pointer member operator 'operator->'. */ |
53e8ad3d MS |
4331 | if (p[2] == '*') |
4332 | { | |
4333 | *end = p + 3; /* 'operator->*' */ | |
4334 | return p; | |
4335 | } | |
4336 | else if (p[2] == '\\') | |
4337 | { | |
4338 | *end = p + 4; /* Hopefully 'operator->\*' */ | |
4339 | return p; | |
4340 | } | |
4341 | else | |
4342 | { | |
4343 | *end = p + 2; /* 'operator->' */ | |
4344 | return p; | |
4345 | } | |
4346 | } | |
4347 | if (p[1] == '=' || p[1] == p[0]) | |
4348 | *end = p + 2; | |
4349 | else | |
4350 | *end = p + 1; | |
4351 | return p; | |
4352 | case '~': | |
4353 | case ',': | |
c5aa993b | 4354 | *end = p + 1; |
53e8ad3d MS |
4355 | return p; |
4356 | case '(': | |
4357 | if (p[1] != ')') | |
3e43a32a MS |
4358 | error (_("`operator ()' must be specified " |
4359 | "without whitespace in `()'")); | |
c5aa993b | 4360 | *end = p + 2; |
53e8ad3d MS |
4361 | return p; |
4362 | case '?': | |
4363 | if (p[1] != ':') | |
3e43a32a MS |
4364 | error (_("`operator ?:' must be specified " |
4365 | "without whitespace in `?:'")); | |
53e8ad3d MS |
4366 | *end = p + 2; |
4367 | return p; | |
4368 | case '[': | |
4369 | if (p[1] != ']') | |
3e43a32a MS |
4370 | error (_("`operator []' must be specified " |
4371 | "without whitespace in `[]'")); | |
53e8ad3d MS |
4372 | *end = p + 2; |
4373 | return p; | |
4374 | default: | |
8a3fe4f8 | 4375 | error (_("`operator %s' not supported"), p); |
53e8ad3d MS |
4376 | break; |
4377 | } | |
4378 | ||
c906108c SS |
4379 | *end = ""; |
4380 | return *end; | |
4381 | } | |
c906108c | 4382 | \f |
c5aa993b | 4383 | |
4a0788e0 | 4384 | /* See class declaration. */ |
9fdc877b | 4385 | |
4a0788e0 | 4386 | info_sources_filter::info_sources_filter (match_on match_type, |
287de656 | 4387 | const char *regexp) |
4a0788e0 AB |
4388 | : m_match_type (match_type), |
4389 | m_regexp (regexp) | |
9fdc877b | 4390 | { |
4a0788e0 AB |
4391 | /* Setup the compiled regular expression M_C_REGEXP based on M_REGEXP. */ |
4392 | if (m_regexp != nullptr && *m_regexp != '\0') | |
4393 | { | |
4394 | gdb_assert (m_regexp != nullptr); | |
28cd9371 | 4395 | |
4a0788e0 AB |
4396 | int cflags = REG_NOSUB; |
4397 | #ifdef HAVE_CASE_INSENSITIVE_FILE_SYSTEM | |
4398 | cflags |= REG_ICASE; | |
4399 | #endif | |
4400 | m_c_regexp.emplace (m_regexp, cflags, _("Invalid regexp")); | |
4401 | } | |
4402 | } | |
28cd9371 | 4403 | |
4a0788e0 | 4404 | /* See class declaration. */ |
9fdc877b | 4405 | |
4a0788e0 AB |
4406 | bool |
4407 | info_sources_filter::matches (const char *fullname) const | |
4408 | { | |
4409 | /* Does it match regexp? */ | |
4410 | if (m_c_regexp.has_value ()) | |
4411 | { | |
4412 | const char *to_match; | |
4413 | std::string dirname; | |
4414 | ||
4415 | switch (m_match_type) | |
287de656 SM |
4416 | { |
4417 | case match_on::DIRNAME: | |
4418 | dirname = ldirname (fullname); | |
4419 | to_match = dirname.c_str (); | |
4420 | break; | |
4421 | case match_on::BASENAME: | |
4422 | to_match = lbasename (fullname); | |
4423 | break; | |
4424 | case match_on::FULLNAME: | |
4425 | to_match = fullname; | |
4426 | break; | |
b6aeb717 TT |
4427 | default: |
4428 | gdb_assert_not_reached ("bad m_match_type"); | |
287de656 | 4429 | } |
4a0788e0 AB |
4430 | |
4431 | if (m_c_regexp->exec (to_match, 0, NULL, 0) != 0) | |
287de656 | 4432 | return false; |
4a0788e0 AB |
4433 | } |
4434 | ||
4435 | return true; | |
4436 | } | |
4437 | ||
4a0788e0 AB |
4438 | /* Data structure to maintain the state used for printing the results of |
4439 | the 'info sources' command. */ | |
4440 | ||
4441 | struct output_source_filename_data | |
4442 | { | |
4443 | /* Create an object for displaying the results of the 'info sources' | |
0e350a05 AB |
4444 | command to UIOUT. FILTER must remain valid and unchanged for the |
4445 | lifetime of this object as this object retains a reference to FILTER. */ | |
4446 | output_source_filename_data (struct ui_out *uiout, | |
4447 | const info_sources_filter &filter) | |
4448 | : m_filter (filter), | |
4449 | m_uiout (uiout) | |
4a0788e0 AB |
4450 | { /* Nothing. */ } |
4451 | ||
4452 | DISABLE_COPY_AND_ASSIGN (output_source_filename_data); | |
4453 | ||
4454 | /* Reset enough state of this object so we can match against a new set of | |
4455 | files. The existing regular expression is retained though. */ | |
4456 | void reset_output () | |
4457 | { | |
4458 | m_first = true; | |
4459 | m_filename_seen_cache.clear (); | |
4460 | } | |
4461 | ||
0e350a05 AB |
4462 | /* Worker for sources_info, outputs the file name formatted for either |
4463 | cli or mi (based on the current_uiout). In cli mode displays | |
4464 | FULLNAME with a comma separating this name from any previously | |
4465 | printed name (line breaks are added at the comma). In MI mode | |
4466 | outputs a tuple containing DISP_NAME (the files display name), | |
4467 | FULLNAME, and EXPANDED_P (true when this file is from a fully | |
4468 | expanded symtab, otherwise false). */ | |
4469 | void output (const char *disp_name, const char *fullname, bool expanded_p); | |
eca864fe | 4470 | |
f4655dee TT |
4471 | /* An overload suitable for use as a callback to |
4472 | quick_symbol_functions::map_symbol_filenames. */ | |
4473 | void operator() (const char *filename, const char *fullname) | |
4474 | { | |
0e350a05 AB |
4475 | /* The false here indicates that this file is from an unexpanded |
4476 | symtab. */ | |
4477 | output (filename, fullname, false); | |
f4655dee | 4478 | } |
4a0788e0 | 4479 | |
bd742128 AB |
4480 | /* Return true if at least one filename has been printed (after a call to |
4481 | output) since either this object was created, or the last call to | |
4482 | reset_output. */ | |
4483 | bool printed_filename_p () const | |
4484 | { | |
4485 | return !m_first; | |
4486 | } | |
4487 | ||
4a0788e0 AB |
4488 | private: |
4489 | ||
4490 | /* Flag of whether we're printing the first one. */ | |
4491 | bool m_first = true; | |
4492 | ||
4493 | /* Cache of what we've seen so far. */ | |
4494 | filename_seen_cache m_filename_seen_cache; | |
4495 | ||
4496 | /* How source filename should be filtered. */ | |
4497 | const info_sources_filter &m_filter; | |
0e350a05 AB |
4498 | |
4499 | /* The object to which output is sent. */ | |
4500 | struct ui_out *m_uiout; | |
f4655dee TT |
4501 | }; |
4502 | ||
4a0788e0 AB |
4503 | /* See comment in class declaration above. */ |
4504 | ||
f4655dee | 4505 | void |
0e350a05 AB |
4506 | output_source_filename_data::output (const char *disp_name, |
4507 | const char *fullname, | |
4508 | bool expanded_p) | |
c94fdfd0 EZ |
4509 | { |
4510 | /* Since a single source file can result in several partial symbol | |
4511 | tables, we need to avoid printing it more than once. Note: if | |
4512 | some of the psymtabs are read in and some are not, it gets | |
4513 | printed both under "Source files for which symbols have been | |
4514 | read" and "Source files for which symbols will be read in on | |
4515 | demand". I consider this a reasonable way to deal with the | |
4516 | situation. I'm not sure whether this can also happen for | |
4517 | symtabs; it doesn't hurt to check. */ | |
4518 | ||
4a0788e0 | 4519 | /* Was NAME already seen? If so, then don't print it again. */ |
0e350a05 | 4520 | if (m_filename_seen_cache.seen (fullname)) |
4a0788e0 | 4521 | return; |
28cd9371 | 4522 | |
4a0788e0 | 4523 | /* If the filter rejects this file then don't print it. */ |
0e350a05 | 4524 | if (!m_filter.matches (fullname)) |
4a0788e0 | 4525 | return; |
28cd9371 | 4526 | |
0e350a05 AB |
4527 | ui_out_emit_tuple ui_emitter (m_uiout, nullptr); |
4528 | ||
28cd9371 | 4529 | /* Print it and reset *FIRST. */ |
4a0788e0 | 4530 | if (!m_first) |
0e350a05 | 4531 | m_uiout->text (", "); |
4a0788e0 | 4532 | m_first = false; |
c906108c | 4533 | |
1285ce86 | 4534 | m_uiout->wrap_hint (0); |
0e350a05 AB |
4535 | if (m_uiout->is_mi_like_p ()) |
4536 | { | |
4537 | m_uiout->field_string ("file", disp_name, file_name_style.style ()); | |
4538 | if (fullname != nullptr) | |
4539 | m_uiout->field_string ("fullname", fullname, | |
4540 | file_name_style.style ()); | |
4541 | m_uiout->field_string ("debug-fully-read", | |
4542 | (expanded_p ? "true" : "false")); | |
4543 | } | |
4544 | else | |
4545 | { | |
4546 | if (fullname == nullptr) | |
4547 | fullname = disp_name; | |
4548 | m_uiout->field_string ("fullname", fullname, | |
4549 | file_name_style.style ()); | |
4550 | } | |
c5aa993b | 4551 | } |
c906108c | 4552 | |
4a0788e0 AB |
4553 | /* For the 'info sources' command, what part of the file names should we be |
4554 | matching the user supplied regular expression against? */ | |
4555 | ||
4556 | struct filename_partial_match_opts | |
4557 | { | |
4558 | /* Only match the directory name part. */ | |
4559 | bool dirname = false; | |
4560 | ||
4561 | /* Only match the basename part. */ | |
4562 | bool basename = false; | |
4563 | }; | |
4564 | ||
28cd9371 PW |
4565 | using isrc_flag_option_def |
4566 | = gdb::option::flag_option_def<filename_partial_match_opts>; | |
4567 | ||
4568 | static const gdb::option::option_def info_sources_option_defs[] = { | |
4569 | ||
4570 | isrc_flag_option_def { | |
4571 | "dirname", | |
4572 | [] (filename_partial_match_opts *opts) { return &opts->dirname; }, | |
4573 | N_("Show only the files having a dirname matching REGEXP."), | |
4574 | }, | |
4575 | ||
4576 | isrc_flag_option_def { | |
4577 | "basename", | |
4578 | [] (filename_partial_match_opts *opts) { return &opts->basename; }, | |
4579 | N_("Show only the files having a basename matching REGEXP."), | |
4580 | }, | |
4581 | ||
4582 | }; | |
4583 | ||
4584 | /* Create an option_def_group for the "info sources" options, with | |
4585 | ISRC_OPTS as context. */ | |
4586 | ||
4587 | static inline gdb::option::option_def_group | |
4588 | make_info_sources_options_def_group (filename_partial_match_opts *isrc_opts) | |
4589 | { | |
4590 | return {{info_sources_option_defs}, isrc_opts}; | |
4591 | } | |
4592 | ||
28cd9371 PW |
4593 | /* Completer for "info sources". */ |
4594 | ||
4595 | static void | |
4596 | info_sources_command_completer (cmd_list_element *ignore, | |
4597 | completion_tracker &tracker, | |
4598 | const char *text, const char *word) | |
4599 | { | |
4600 | const auto group = make_info_sources_options_def_group (nullptr); | |
4601 | if (gdb::option::complete_options | |
4602 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
4603 | return; | |
4604 | } | |
4605 | ||
0e350a05 AB |
4606 | /* See symtab.h. */ |
4607 | ||
4608 | void | |
4609 | info_sources_worker (struct ui_out *uiout, | |
1fb1ce02 | 4610 | bool group_by_objfile, |
0e350a05 AB |
4611 | const info_sources_filter &filter) |
4612 | { | |
4613 | output_source_filename_data data (uiout, filter); | |
4614 | ||
4615 | ui_out_emit_list results_emitter (uiout, "files"); | |
6b09f134 LS |
4616 | std::optional<ui_out_emit_tuple> output_tuple; |
4617 | std::optional<ui_out_emit_list> sources_list; | |
0e350a05 | 4618 | |
bd742128 | 4619 | gdb_assert (group_by_objfile || uiout->is_mi_like_p ()); |
0e350a05 AB |
4620 | |
4621 | for (objfile *objfile : current_program_space->objfiles ()) | |
4622 | { | |
1fb1ce02 AB |
4623 | if (group_by_objfile) |
4624 | { | |
4625 | output_tuple.emplace (uiout, nullptr); | |
972f7a4b TT |
4626 | uiout->field_string ("filename", objfile_name (objfile), |
4627 | file_name_style.style ()); | |
bd742128 | 4628 | uiout->text (":\n"); |
1fb1ce02 | 4629 | bool debug_fully_readin = !objfile->has_unexpanded_symtabs (); |
bd742128 | 4630 | if (uiout->is_mi_like_p ()) |
1fb1ce02 | 4631 | { |
bd742128 AB |
4632 | const char *debug_info_state; |
4633 | if (objfile_has_symbols (objfile)) | |
4634 | { | |
4635 | if (debug_fully_readin) | |
4636 | debug_info_state = "fully-read"; | |
4637 | else | |
4638 | debug_info_state = "partially-read"; | |
4639 | } | |
1fb1ce02 | 4640 | else |
bd742128 AB |
4641 | debug_info_state = "none"; |
4642 | current_uiout->field_string ("debug-info", debug_info_state); | |
1fb1ce02 AB |
4643 | } |
4644 | else | |
bd742128 AB |
4645 | { |
4646 | if (!debug_fully_readin) | |
4647 | uiout->text ("(Full debug information has not yet been read " | |
4648 | "for this file.)\n"); | |
4649 | if (!objfile_has_symbols (objfile)) | |
4650 | uiout->text ("(Objfile has no debug information.)\n"); | |
4651 | uiout->text ("\n"); | |
4652 | } | |
1fb1ce02 AB |
4653 | sources_list.emplace (uiout, "sources"); |
4654 | } | |
4655 | ||
0e350a05 AB |
4656 | for (compunit_symtab *cu : objfile->compunits ()) |
4657 | { | |
102cc235 | 4658 | for (symtab *s : cu->filetabs ()) |
0e350a05 AB |
4659 | { |
4660 | const char *file = symtab_to_filename_for_display (s); | |
4661 | const char *fullname = symtab_to_fullname (s); | |
4662 | data.output (file, fullname, true); | |
4663 | } | |
4664 | } | |
1fb1ce02 AB |
4665 | |
4666 | if (group_by_objfile) | |
4667 | { | |
4668 | objfile->map_symbol_filenames (data, true /* need_fullname */); | |
bd742128 AB |
4669 | if (data.printed_filename_p ()) |
4670 | uiout->text ("\n\n"); | |
1fb1ce02 AB |
4671 | data.reset_output (); |
4672 | sources_list.reset (); | |
4673 | output_tuple.reset (); | |
4674 | } | |
0e350a05 AB |
4675 | } |
4676 | ||
1fb1ce02 AB |
4677 | if (!group_by_objfile) |
4678 | { | |
1fb1ce02 AB |
4679 | data.reset_output (); |
4680 | map_symbol_filenames (data, true /*need_fullname*/); | |
1fb1ce02 | 4681 | } |
0e350a05 AB |
4682 | } |
4683 | ||
4a0788e0 AB |
4684 | /* Implement the 'info sources' command. */ |
4685 | ||
28cd9371 PW |
4686 | static void |
4687 | info_sources_command (const char *args, int from_tty) | |
c906108c | 4688 | { |
c906108c | 4689 | if (!have_full_symbols () && !have_partial_symbols ()) |
4a0788e0 | 4690 | error (_("No symbol table is loaded. Use the \"file\" command.")); |
28cd9371 | 4691 | |
4a0788e0 AB |
4692 | filename_partial_match_opts match_opts; |
4693 | auto group = make_info_sources_options_def_group (&match_opts); | |
28cd9371 PW |
4694 | gdb::option::process_options |
4695 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_ERROR, group); | |
9fdc877b | 4696 | |
4a0788e0 AB |
4697 | if (match_opts.dirname && match_opts.basename) |
4698 | error (_("You cannot give both -basename and -dirname to 'info sources'.")); | |
c906108c | 4699 | |
4a0788e0 | 4700 | const char *regex = nullptr; |
0e350a05 | 4701 | if (args != NULL && *args != '\000') |
4a0788e0 | 4702 | regex = args; |
28cd9371 | 4703 | |
4a0788e0 AB |
4704 | if ((match_opts.dirname || match_opts.basename) && regex == nullptr) |
4705 | error (_("Missing REGEXP for 'info sources'.")); | |
28cd9371 | 4706 | |
4a0788e0 AB |
4707 | info_sources_filter::match_on match_type; |
4708 | if (match_opts.dirname) | |
4709 | match_type = info_sources_filter::match_on::DIRNAME; | |
4710 | else if (match_opts.basename) | |
4711 | match_type = info_sources_filter::match_on::BASENAME; | |
28cd9371 | 4712 | else |
4a0788e0 AB |
4713 | match_type = info_sources_filter::match_on::FULLNAME; |
4714 | ||
4715 | info_sources_filter filter (match_type, regex); | |
bd742128 | 4716 | info_sources_worker (current_uiout, true, filter); |
c906108c SS |
4717 | } |
4718 | ||
470c0b1c AB |
4719 | /* Compare FILE against all the entries of FILENAMES. If BASENAMES is |
4720 | true compare only lbasename of FILENAMES. */ | |
fbd9ab74 | 4721 | |
470c0b1c AB |
4722 | static bool |
4723 | file_matches (const char *file, const std::vector<const char *> &filenames, | |
4724 | bool basenames) | |
c906108c | 4725 | { |
470c0b1c AB |
4726 | if (filenames.empty ()) |
4727 | return true; | |
c906108c | 4728 | |
470c0b1c | 4729 | for (const char *name : filenames) |
c906108c | 4730 | { |
470c0b1c AB |
4731 | name = (basenames ? lbasename (name) : name); |
4732 | if (compare_filenames_for_search (file, name)) | |
4733 | return true; | |
c906108c | 4734 | } |
470c0b1c AB |
4735 | |
4736 | return false; | |
c906108c SS |
4737 | } |
4738 | ||
f97a63c5 AB |
4739 | /* Helper function for std::sort on symbol_search objects. Can only sort |
4740 | symbols, not minimal symbols. */ | |
eca864fe | 4741 | |
b9c04fb2 TT |
4742 | int |
4743 | symbol_search::compare_search_syms (const symbol_search &sym_a, | |
4744 | const symbol_search &sym_b) | |
434d2d4f | 4745 | { |
b52109bc DE |
4746 | int c; |
4747 | ||
4206d69e TT |
4748 | c = FILENAME_CMP (sym_a.symbol->symtab ()->filename, |
4749 | sym_b.symbol->symtab ()->filename); | |
b52109bc DE |
4750 | if (c != 0) |
4751 | return c; | |
434d2d4f | 4752 | |
b9c04fb2 TT |
4753 | if (sym_a.block != sym_b.block) |
4754 | return sym_a.block - sym_b.block; | |
b52109bc | 4755 | |
987012b8 | 4756 | return strcmp (sym_a.symbol->print_name (), sym_b.symbol->print_name ()); |
434d2d4f DJ |
4757 | } |
4758 | ||
12615cba PW |
4759 | /* Returns true if the type_name of symbol_type of SYM matches TREG. |
4760 | If SYM has no symbol_type or symbol_name, returns false. */ | |
4761 | ||
4762 | bool | |
4763 | treg_matches_sym_type_name (const compiled_regex &treg, | |
4764 | const struct symbol *sym) | |
4765 | { | |
4766 | struct type *sym_type; | |
4767 | std::string printed_sym_type_name; | |
4768 | ||
b1e678d9 AB |
4769 | symbol_lookup_debug_printf_v ("treg_matches_sym_type_name, sym %s", |
4770 | sym->natural_name ()); | |
12615cba | 4771 | |
5f9c5a63 | 4772 | sym_type = sym->type (); |
12615cba PW |
4773 | if (sym_type == NULL) |
4774 | return false; | |
4775 | ||
43d397ca PW |
4776 | { |
4777 | scoped_switch_to_sym_language_if_auto l (sym); | |
12615cba | 4778 | |
12615cba | 4779 | printed_sym_type_name = type_to_string (sym_type); |
43d397ca PW |
4780 | } |
4781 | ||
b1e678d9 AB |
4782 | symbol_lookup_debug_printf_v ("sym_type_name %s", |
4783 | printed_sym_type_name.c_str ()); | |
12615cba PW |
4784 | |
4785 | if (printed_sym_type_name.empty ()) | |
4786 | return false; | |
4787 | ||
4788 | return treg.exec (printed_sym_type_name.c_str (), 0, NULL, 0) == 0; | |
4789 | } | |
4790 | ||
f97a63c5 AB |
4791 | /* See symtab.h. */ |
4792 | ||
4793 | bool | |
4794 | global_symbol_searcher::is_suitable_msymbol | |
c92d4de1 | 4795 | (const domain_search_flags kind, const minimal_symbol *msymbol) |
f97a63c5 | 4796 | { |
60f62e2b | 4797 | switch (msymbol->type ()) |
f97a63c5 AB |
4798 | { |
4799 | case mst_data: | |
4800 | case mst_bss: | |
4801 | case mst_file_data: | |
4802 | case mst_file_bss: | |
c92d4de1 | 4803 | return (kind & SEARCH_VAR_DOMAIN) != 0; |
f97a63c5 AB |
4804 | case mst_text: |
4805 | case mst_file_text: | |
4806 | case mst_solib_trampoline: | |
4807 | case mst_text_gnu_ifunc: | |
c92d4de1 | 4808 | return (kind & SEARCH_FUNCTION_DOMAIN) != 0; |
f97a63c5 AB |
4809 | default: |
4810 | return false; | |
4811 | } | |
4812 | } | |
4813 | ||
4814 | /* See symtab.h. */ | |
4815 | ||
4816 | bool | |
4817 | global_symbol_searcher::expand_symtabs | |
6b09f134 | 4818 | (objfile *objfile, const std::optional<compiled_regex> &preg) const |
f97a63c5 | 4819 | { |
c92d4de1 | 4820 | domain_search_flags kind = m_kind; |
f97a63c5 AB |
4821 | bool found_msymbol = false; |
4822 | ||
c5a9fcdf TT |
4823 | auto do_file_match = [&] (const char *filename, bool basenames) |
4824 | { | |
4825 | return file_matches (filename, filenames, basenames); | |
4826 | }; | |
4827 | gdb::function_view<expand_symtabs_file_matcher_ftype> file_matcher = nullptr; | |
4828 | if (!filenames.empty ()) | |
4829 | file_matcher = do_file_match; | |
4830 | ||
4d080b46 | 4831 | objfile->expand_symtabs_matching |
c5a9fcdf | 4832 | (file_matcher, |
4d080b46 TT |
4833 | &lookup_name_info::match_any (), |
4834 | [&] (const char *symname) | |
4835 | { | |
4836 | return (!preg.has_value () | |
4837 | || preg->exec (symname, 0, NULL, 0) == 0); | |
4838 | }, | |
4839 | NULL, | |
03a8ea51 | 4840 | SEARCH_GLOBAL_BLOCK | SEARCH_STATIC_BLOCK, |
4d080b46 | 4841 | kind); |
f97a63c5 AB |
4842 | |
4843 | /* Here, we search through the minimal symbol tables for functions and | |
4844 | variables that match, and force their symbols to be read. This is in | |
4845 | particular necessary for demangled variable names, which are no longer | |
4846 | put into the partial symbol tables. The symbol will then be found | |
4847 | during the scan of symtabs later. | |
4848 | ||
4849 | For functions, find_pc_symtab should succeed if we have debug info for | |
4850 | the function, for variables we have to call | |
4851 | lookup_symbol_in_objfile_from_linkage_name to determine if the | |
4852 | variable has debug info. If the lookup fails, set found_msymbol so | |
4853 | that we will rescan to print any matching symbols without debug info. | |
4854 | We only search the objfile the msymbol came from, we no longer search | |
4855 | all objfiles. In large programs (1000s of shared libs) searching all | |
4856 | objfiles is not worth the pain. */ | |
4857 | if (filenames.empty () | |
c92d4de1 | 4858 | && (kind & (SEARCH_VAR_DOMAIN | SEARCH_FUNCTION_DOMAIN)) != 0) |
f97a63c5 AB |
4859 | { |
4860 | for (minimal_symbol *msymbol : objfile->msymbols ()) | |
4861 | { | |
4862 | QUIT; | |
4863 | ||
4864 | if (msymbol->created_by_gdb) | |
4865 | continue; | |
4866 | ||
4867 | if (is_suitable_msymbol (kind, msymbol)) | |
4868 | { | |
4869 | if (!preg.has_value () | |
4870 | || preg->exec (msymbol->natural_name (), 0, | |
4871 | NULL, 0) == 0) | |
4872 | { | |
4873 | /* An important side-effect of these lookup functions is | |
4874 | to expand the symbol table if msymbol is found, later | |
4875 | in the process we will add matching symbols or | |
4876 | msymbols to the results list, and that requires that | |
4877 | the symbols tables are expanded. */ | |
c92d4de1 | 4878 | if ((kind & SEARCH_FUNCTION_DOMAIN) != 0 |
f97a63c5 | 4879 | ? (find_pc_compunit_symtab |
4aeddc50 | 4880 | (msymbol->value_address (objfile)) == NULL) |
f97a63c5 AB |
4881 | : (lookup_symbol_in_objfile_from_linkage_name |
4882 | (objfile, msymbol->linkage_name (), | |
ccf41c24 | 4883 | SEARCH_VFT) |
f97a63c5 AB |
4884 | .symbol == NULL)) |
4885 | found_msymbol = true; | |
4886 | } | |
4887 | } | |
4888 | } | |
4889 | } | |
4890 | ||
4891 | return found_msymbol; | |
4892 | } | |
4893 | ||
4894 | /* See symtab.h. */ | |
4895 | ||
c2512106 | 4896 | bool |
f97a63c5 AB |
4897 | global_symbol_searcher::add_matching_symbols |
4898 | (objfile *objfile, | |
6b09f134 LS |
4899 | const std::optional<compiled_regex> &preg, |
4900 | const std::optional<compiled_regex> &treg, | |
c2512106 | 4901 | std::set<symbol_search> *result_set) const |
f97a63c5 | 4902 | { |
c92d4de1 | 4903 | domain_search_flags kind = m_kind; |
f97a63c5 AB |
4904 | |
4905 | /* Add matching symbols (if not already present). */ | |
4906 | for (compunit_symtab *cust : objfile->compunits ()) | |
4907 | { | |
af39c5c8 | 4908 | const struct blockvector *bv = cust->blockvector (); |
f97a63c5 AB |
4909 | |
4910 | for (block_enum block : { GLOBAL_BLOCK, STATIC_BLOCK }) | |
4911 | { | |
63d609de | 4912 | const struct block *b = bv->block (block); |
f97a63c5 | 4913 | |
548a89df | 4914 | for (struct symbol *sym : block_iterator_range (b)) |
f97a63c5 | 4915 | { |
4206d69e | 4916 | struct symtab *real_symtab = sym->symtab (); |
f97a63c5 AB |
4917 | |
4918 | QUIT; | |
4919 | ||
4920 | /* Check first sole REAL_SYMTAB->FILENAME. It does | |
4921 | not need to be a substring of symtab_to_fullname as | |
4922 | it may contain "./" etc. */ | |
d4f48c1e TT |
4923 | if (!(file_matches (real_symtab->filename, filenames, false) |
4924 | || ((basenames_may_differ | |
4925 | || file_matches (lbasename (real_symtab->filename), | |
4926 | filenames, true)) | |
4927 | && file_matches (symtab_to_fullname (real_symtab), | |
4928 | filenames, false)))) | |
4929 | continue; | |
4930 | ||
4931 | if (preg.has_value () && !preg->exec (sym->natural_name (), 0, | |
4932 | nullptr, 0) == 0) | |
4933 | continue; | |
4934 | ||
4935 | bool matches = false; | |
c92d4de1 | 4936 | if (!matches && (kind & SEARCH_VAR_DOMAIN) != 0) |
d4f48c1e TT |
4937 | { |
4938 | if (sym->aclass () != LOC_TYPEDEF | |
4939 | && sym->aclass () != LOC_UNRESOLVED | |
4940 | && sym->aclass () != LOC_BLOCK | |
4941 | /* LOC_CONST can be used for more than | |
4942 | just enums, e.g., c++ static const | |
4943 | members. We only want to skip enums | |
4944 | here. */ | |
4945 | && !(sym->aclass () == LOC_CONST | |
4946 | && (sym->type ()->code () | |
4947 | == TYPE_CODE_ENUM)) | |
4948 | && (!treg.has_value () | |
4949 | || treg_matches_sym_type_name (*treg, sym))) | |
4950 | matches = true; | |
4951 | } | |
c92d4de1 | 4952 | if (!matches && (kind & SEARCH_FUNCTION_DOMAIN) != 0) |
d4f48c1e TT |
4953 | { |
4954 | if (sym->aclass () == LOC_BLOCK | |
4955 | && (!treg.has_value () | |
4956 | || treg_matches_sym_type_name (*treg, | |
4957 | sym))) | |
4958 | matches = true; | |
4959 | } | |
c92d4de1 | 4960 | if (!matches && (kind & SEARCH_TYPE_DOMAIN) != 0) |
d4f48c1e TT |
4961 | { |
4962 | if (sym->aclass () == LOC_TYPEDEF | |
4963 | && sym->domain () != MODULE_DOMAIN) | |
4964 | matches = true; | |
4965 | } | |
c92d4de1 | 4966 | if (!matches && (kind & SEARCH_MODULE_DOMAIN) != 0) |
d4f48c1e TT |
4967 | { |
4968 | if (sym->domain () == MODULE_DOMAIN | |
4969 | && sym->line () != 0) | |
4970 | matches = true; | |
4971 | } | |
4972 | if (matches) | |
f97a63c5 | 4973 | { |
c2512106 AB |
4974 | if (result_set->size () < m_max_search_results) |
4975 | { | |
4976 | /* Match, insert if not already in the results. */ | |
4977 | symbol_search ss (block, sym); | |
4978 | if (result_set->find (ss) == result_set->end ()) | |
4979 | result_set->insert (ss); | |
4980 | } | |
4981 | else | |
4982 | return false; | |
f97a63c5 AB |
4983 | } |
4984 | } | |
4985 | } | |
4986 | } | |
c2512106 AB |
4987 | |
4988 | return true; | |
f97a63c5 AB |
4989 | } |
4990 | ||
4991 | /* See symtab.h. */ | |
4992 | ||
c2512106 | 4993 | bool |
f97a63c5 | 4994 | global_symbol_searcher::add_matching_msymbols |
6b09f134 | 4995 | (objfile *objfile, const std::optional<compiled_regex> &preg, |
f97a63c5 AB |
4996 | std::vector<symbol_search> *results) const |
4997 | { | |
c92d4de1 | 4998 | domain_search_flags kind = m_kind; |
f97a63c5 AB |
4999 | |
5000 | for (minimal_symbol *msymbol : objfile->msymbols ()) | |
5001 | { | |
5002 | QUIT; | |
5003 | ||
5004 | if (msymbol->created_by_gdb) | |
5005 | continue; | |
5006 | ||
5007 | if (is_suitable_msymbol (kind, msymbol)) | |
5008 | { | |
5009 | if (!preg.has_value () | |
5010 | || preg->exec (msymbol->natural_name (), 0, | |
5011 | NULL, 0) == 0) | |
5012 | { | |
5013 | /* For functions we can do a quick check of whether the | |
5014 | symbol might be found via find_pc_symtab. */ | |
c92d4de1 | 5015 | if ((kind & SEARCH_FUNCTION_DOMAIN) == 0 |
f97a63c5 | 5016 | || (find_pc_compunit_symtab |
4aeddc50 | 5017 | (msymbol->value_address (objfile)) == NULL)) |
f97a63c5 AB |
5018 | { |
5019 | if (lookup_symbol_in_objfile_from_linkage_name | |
5020 | (objfile, msymbol->linkage_name (), | |
ccf41c24 | 5021 | SEARCH_VFT).symbol == NULL) |
f97a63c5 AB |
5022 | { |
5023 | /* Matching msymbol, add it to the results list. */ | |
c2512106 AB |
5024 | if (results->size () < m_max_search_results) |
5025 | results->emplace_back (GLOBAL_BLOCK, msymbol, objfile); | |
5026 | else | |
5027 | return false; | |
f97a63c5 AB |
5028 | } |
5029 | } | |
5030 | } | |
5031 | } | |
5032 | } | |
12615cba | 5033 | |
c2512106 | 5034 | return true; |
434d2d4f | 5035 | } |
5bd98722 | 5036 | |
470c0b1c | 5037 | /* See symtab.h. */ |
c378eb4e | 5038 | |
b9c04fb2 | 5039 | std::vector<symbol_search> |
470c0b1c | 5040 | global_symbol_searcher::search () const |
c906108c | 5041 | { |
6b09f134 LS |
5042 | std::optional<compiled_regex> preg; |
5043 | std::optional<compiled_regex> treg; | |
c906108c | 5044 | |
470c0b1c | 5045 | if (m_symbol_name_regexp != NULL) |
c906108c | 5046 | { |
470c0b1c | 5047 | const char *symbol_name_regexp = m_symbol_name_regexp; |
9c48a8e6 | 5048 | std::string symbol_name_regexp_holder; |
470c0b1c | 5049 | |
c906108c | 5050 | /* Make sure spacing is right for C++ operators. |
dda83cd7 SM |
5051 | This is just a courtesy to make the matching less sensitive |
5052 | to how many spaces the user leaves between 'operator' | |
5053 | and <TYPENAME> or <OPERATOR>. */ | |
96142726 | 5054 | const char *opend; |
470c0b1c | 5055 | const char *opname = operator_chars (symbol_name_regexp, &opend); |
433759f7 | 5056 | |
c906108c | 5057 | if (*opname) |
c5aa993b | 5058 | { |
3e43a32a | 5059 | int fix = -1; /* -1 means ok; otherwise number of |
dda83cd7 | 5060 | spaces needed. */ |
433759f7 | 5061 | |
c5aa993b JM |
5062 | if (isalpha (*opname) || *opname == '_' || *opname == '$') |
5063 | { | |
c378eb4e | 5064 | /* There should 1 space between 'operator' and 'TYPENAME'. */ |
c5aa993b JM |
5065 | if (opname[-1] != ' ' || opname[-2] == ' ') |
5066 | fix = 1; | |
5067 | } | |
5068 | else | |
5069 | { | |
c378eb4e | 5070 | /* There should 0 spaces between 'operator' and 'OPERATOR'. */ |
c5aa993b JM |
5071 | if (opname[-1] == ' ') |
5072 | fix = 0; | |
5073 | } | |
c378eb4e | 5074 | /* If wrong number of spaces, fix it. */ |
c5aa993b JM |
5075 | if (fix >= 0) |
5076 | { | |
9c48a8e6 SM |
5077 | symbol_name_regexp_holder |
5078 | = string_printf ("operator%.*s%s", fix, " ", opname); | |
5079 | symbol_name_regexp = symbol_name_regexp_holder.c_str (); | |
c5aa993b JM |
5080 | } |
5081 | } | |
5082 | ||
2d7cc5c7 PA |
5083 | int cflags = REG_NOSUB | (case_sensitivity == case_sensitive_off |
5084 | ? REG_ICASE : 0); | |
470c0b1c AB |
5085 | preg.emplace (symbol_name_regexp, cflags, |
5086 | _("Invalid regexp")); | |
c906108c SS |
5087 | } |
5088 | ||
470c0b1c | 5089 | if (m_symbol_type_regexp != NULL) |
12615cba PW |
5090 | { |
5091 | int cflags = REG_NOSUB | (case_sensitivity == case_sensitive_off | |
5092 | ? REG_ICASE : 0); | |
470c0b1c AB |
5093 | treg.emplace (m_symbol_type_regexp, cflags, |
5094 | _("Invalid regexp")); | |
12615cba PW |
5095 | } |
5096 | ||
f97a63c5 | 5097 | bool found_msymbol = false; |
c2512106 | 5098 | std::set<symbol_search> result_set; |
2030c079 | 5099 | for (objfile *objfile : current_program_space->objfiles ()) |
d8aeb77f | 5100 | { |
f97a63c5 AB |
5101 | /* Expand symtabs within objfile that possibly contain matching |
5102 | symbols. */ | |
5103 | found_msymbol |= expand_symtabs (objfile, preg); | |
5104 | ||
c2512106 AB |
5105 | /* Find matching symbols within OBJFILE and add them in to the |
5106 | RESULT_SET set. Use a set here so that we can easily detect | |
5107 | duplicates as we go, and can therefore track how many unique | |
5108 | matches we have found so far. */ | |
5109 | if (!add_matching_symbols (objfile, preg, treg, &result_set)) | |
5110 | break; | |
d8aeb77f | 5111 | } |
c906108c | 5112 | |
c2512106 AB |
5113 | /* Convert the result set into a sorted result list, as std::set is |
5114 | defined to be sorted then no explicit call to std::sort is needed. */ | |
5115 | std::vector<symbol_search> result (result_set.begin (), result_set.end ()); | |
b52109bc | 5116 | |
470c0b1c | 5117 | /* If there are no debug symbols, then add matching minsyms. But if the |
f97a63c5 AB |
5118 | user wants to see symbols matching a type regexp, then never give a |
5119 | minimal symbol, as we assume that a minimal symbol does not have a | |
5120 | type. */ | |
c92d4de1 TT |
5121 | if ((found_msymbol |
5122 | || (filenames.empty () && (m_kind & SEARCH_VAR_DOMAIN) != 0)) | |
470c0b1c | 5123 | && !m_exclude_minsyms |
a8462bbf | 5124 | && !treg.has_value ()) |
c906108c | 5125 | { |
c92d4de1 TT |
5126 | gdb_assert ((m_kind & (SEARCH_VAR_DOMAIN | SEARCH_FUNCTION_DOMAIN)) |
5127 | != 0); | |
2030c079 | 5128 | for (objfile *objfile : current_program_space->objfiles ()) |
c2512106 AB |
5129 | if (!add_matching_msymbols (objfile, preg, &result)) |
5130 | break; | |
c906108c SS |
5131 | } |
5132 | ||
b9c04fb2 | 5133 | return result; |
c906108c SS |
5134 | } |
5135 | ||
5f512a7d | 5136 | /* See symtab.h. */ |
c378eb4e | 5137 | |
5f512a7d | 5138 | std::string |
d4bf9040 | 5139 | symbol_to_info_string (struct symbol *sym, int block) |
c906108c | 5140 | { |
5f512a7d | 5141 | std::string str; |
05cba821 | 5142 | |
5f512a7d | 5143 | gdb_assert (block == GLOBAL_BLOCK || block == STATIC_BLOCK); |
b744723f | 5144 | |
d4bf9040 TT |
5145 | if (block == STATIC_BLOCK |
5146 | && sym->domain () == VAR_DOMAIN | |
5147 | && sym->aclass () != LOC_TYPEDEF) | |
5f512a7d | 5148 | str += "static "; |
c5aa993b | 5149 | |
c378eb4e | 5150 | /* Typedef that is not a C++ class. */ |
d4bf9040 | 5151 | if (sym->domain () == VAR_DOMAIN && sym->aclass () == LOC_TYPEDEF) |
eb86c5e2 | 5152 | { |
5f512a7d AB |
5153 | string_file tmp_stream; |
5154 | ||
eb86c5e2 AB |
5155 | /* FIXME: For C (and C++) we end up with a difference in output here |
5156 | between how a typedef is printed, and non-typedefs are printed. | |
5157 | The TYPEDEF_PRINT code places a ";" at the end in an attempt to | |
5158 | appear C-like, while TYPE_PRINT doesn't. | |
5159 | ||
5160 | For the struct printing case below, things are worse, we force | |
5161 | printing of the ";" in this function, which is going to be wrong | |
5162 | for languages that don't require a ";" between statements. */ | |
5f9c5a63 SM |
5163 | if (sym->type ()->code () == TYPE_CODE_TYPEDEF) |
5164 | typedef_print (sym->type (), sym, &tmp_stream); | |
eb86c5e2 | 5165 | else |
5f9c5a63 | 5166 | type_print (sym->type (), "", &tmp_stream, -1); |
5f512a7d | 5167 | str += tmp_stream.string (); |
eb86c5e2 | 5168 | } |
c378eb4e | 5169 | /* variable, func, or typedef-that-is-c++-class. */ |
d4bf9040 | 5170 | else if (sym->domain () == VAR_DOMAIN || sym->domain () == STRUCT_DOMAIN) |
c906108c | 5171 | { |
5f512a7d AB |
5172 | string_file tmp_stream; |
5173 | ||
5f9c5a63 | 5174 | type_print (sym->type (), |
66d7f48f | 5175 | (sym->aclass () == LOC_TYPEDEF |
987012b8 | 5176 | ? "" : sym->print_name ()), |
5f512a7d | 5177 | &tmp_stream, 0); |
c906108c | 5178 | |
5f512a7d AB |
5179 | str += tmp_stream.string (); |
5180 | str += ";"; | |
c906108c | 5181 | } |
59c35742 AB |
5182 | /* Printing of modules is currently done here, maybe at some future |
5183 | point we might want a language specific method to print the module | |
5184 | symbol so that we can customise the output more. */ | |
d4bf9040 | 5185 | else if (sym->domain () == MODULE_DOMAIN) |
5f512a7d AB |
5186 | str += sym->print_name (); |
5187 | ||
5188 | return str; | |
5189 | } | |
5190 | ||
d4bf9040 TT |
5191 | /* Helper function for symbol info commands, for example 'info |
5192 | functions', 'info variables', etc. BLOCK is the type of block the | |
5193 | symbols was found in, either GLOBAL_BLOCK or STATIC_BLOCK. SYM is | |
5194 | the symbol we found. If LAST is not NULL, print file and line | |
5195 | number information for the symbol as well. Skip printing the | |
5196 | filename if it matches LAST. */ | |
5f512a7d AB |
5197 | |
5198 | static void | |
d4bf9040 | 5199 | print_symbol_info (struct symbol *sym, int block, const char *last) |
5f512a7d AB |
5200 | { |
5201 | scoped_switch_to_sym_language_if_auto l (sym); | |
4206d69e | 5202 | struct symtab *s = sym->symtab (); |
5f512a7d AB |
5203 | |
5204 | if (last != NULL) | |
5205 | { | |
5206 | const char *s_filename = symtab_to_filename_for_display (s); | |
5207 | ||
5208 | if (filename_cmp (last, s_filename) != 0) | |
5209 | { | |
6cb06a8c TT |
5210 | gdb_printf (_("\nFile %ps:\n"), |
5211 | styled_string (file_name_style.style (), | |
5212 | s_filename)); | |
5f512a7d AB |
5213 | } |
5214 | ||
5d0027b9 | 5215 | if (sym->line () != 0) |
6cb06a8c | 5216 | gdb_printf ("%d:\t", sym->line ()); |
5f512a7d | 5217 | else |
0426ad51 | 5218 | gdb_puts ("\t"); |
5f512a7d AB |
5219 | } |
5220 | ||
d4bf9040 | 5221 | std::string str = symbol_to_info_string (sym, block); |
6cb06a8c | 5222 | gdb_printf ("%s\n", str.c_str ()); |
c906108c SS |
5223 | } |
5224 | ||
5225 | /* This help function for symtab_symbol_info() prints information | |
c378eb4e MS |
5226 | for non-debugging symbols to gdb_stdout. */ |
5227 | ||
c906108c | 5228 | static void |
7c7b6655 | 5229 | print_msymbol_info (struct bound_minimal_symbol msymbol) |
c906108c | 5230 | { |
08feed99 | 5231 | struct gdbarch *gdbarch = msymbol.objfile->arch (); |
3ac4495a MS |
5232 | char *tmp; |
5233 | ||
d80b854b | 5234 | if (gdbarch_addr_bit (gdbarch) <= 32) |
4aeddc50 | 5235 | tmp = hex_string_custom (msymbol.value_address () |
bb599908 PH |
5236 | & (CORE_ADDR) 0xffffffff, |
5237 | 8); | |
3ac4495a | 5238 | else |
4aeddc50 | 5239 | tmp = hex_string_custom (msymbol.value_address (), |
bb599908 | 5240 | 16); |
6a831f06 PA |
5241 | |
5242 | ui_file_style sym_style = (msymbol.minsym->text_p () | |
5243 | ? function_name_style.style () | |
5244 | : ui_file_style ()); | |
5245 | ||
6cb06a8c TT |
5246 | gdb_printf (_("%ps %ps\n"), |
5247 | styled_string (address_style.style (), tmp), | |
5248 | styled_string (sym_style, msymbol.minsym->print_name ())); | |
c906108c SS |
5249 | } |
5250 | ||
5251 | /* This is the guts of the commands "info functions", "info types", and | |
c378eb4e | 5252 | "info variables". It calls search_symbols to find all matches and then |
c906108c | 5253 | print_[m]symbol_info to print out some useful information about the |
c378eb4e MS |
5254 | matches. */ |
5255 | ||
c906108c | 5256 | static void |
4acfdd20 | 5257 | symtab_symbol_info (bool quiet, bool exclude_minsyms, |
c92d4de1 | 5258 | const char *regexp, domain_enum kind, |
12615cba | 5259 | const char *t_regexp, int from_tty) |
c906108c | 5260 | { |
c7dcbf88 | 5261 | const char *last_filename = ""; |
c906108c SS |
5262 | int first = 1; |
5263 | ||
b16507e0 AB |
5264 | if (regexp != nullptr && *regexp == '\0') |
5265 | regexp = nullptr; | |
5266 | ||
c92d4de1 TT |
5267 | domain_search_flags flags = to_search_flags (kind); |
5268 | if (kind == TYPE_DOMAIN) | |
5269 | flags |= SEARCH_STRUCT_DOMAIN; | |
5270 | ||
5271 | global_symbol_searcher spec (flags, regexp); | |
470c0b1c AB |
5272 | spec.set_symbol_type_regexp (t_regexp); |
5273 | spec.set_exclude_minsyms (exclude_minsyms); | |
5274 | std::vector<symbol_search> symbols = spec.search (); | |
c906108c | 5275 | |
12615cba PW |
5276 | if (!quiet) |
5277 | { | |
c92d4de1 TT |
5278 | const char *classname; |
5279 | switch (kind) | |
5280 | { | |
5281 | case VAR_DOMAIN: | |
5282 | classname = "variable"; | |
5283 | break; | |
5284 | case FUNCTION_DOMAIN: | |
5285 | classname = "function"; | |
5286 | break; | |
5287 | case TYPE_DOMAIN: | |
5288 | classname = "type"; | |
5289 | break; | |
5290 | case MODULE_DOMAIN: | |
5291 | classname = "module"; | |
5292 | break; | |
5293 | default: | |
5294 | gdb_assert_not_reached ("invalid domain enum"); | |
5295 | } | |
5296 | ||
12615cba PW |
5297 | if (regexp != NULL) |
5298 | { | |
5299 | if (t_regexp != NULL) | |
6cb06a8c | 5300 | gdb_printf |
12615cba | 5301 | (_("All %ss matching regular expression \"%s\"" |
0c95f9ed | 5302 | " with type matching regular expression \"%s\":\n"), |
c92d4de1 | 5303 | classname, regexp, t_regexp); |
12615cba | 5304 | else |
6cb06a8c | 5305 | gdb_printf (_("All %ss matching regular expression \"%s\":\n"), |
c92d4de1 | 5306 | classname, regexp); |
12615cba PW |
5307 | } |
5308 | else | |
5309 | { | |
5310 | if (t_regexp != NULL) | |
6cb06a8c | 5311 | gdb_printf |
12615cba | 5312 | (_("All defined %ss" |
0c95f9ed | 5313 | " with type matching regular expression \"%s\" :\n"), |
c92d4de1 | 5314 | classname, t_regexp); |
12615cba | 5315 | else |
c92d4de1 | 5316 | gdb_printf (_("All defined %ss:\n"), classname); |
12615cba PW |
5317 | } |
5318 | } | |
c906108c | 5319 | |
b9c04fb2 | 5320 | for (const symbol_search &p : symbols) |
c906108c SS |
5321 | { |
5322 | QUIT; | |
5323 | ||
b9c04fb2 | 5324 | if (p.msymbol.minsym != NULL) |
c5aa993b JM |
5325 | { |
5326 | if (first) | |
5327 | { | |
12615cba | 5328 | if (!quiet) |
6cb06a8c | 5329 | gdb_printf (_("\nNon-debugging symbols:\n")); |
c5aa993b JM |
5330 | first = 0; |
5331 | } | |
b9c04fb2 | 5332 | print_msymbol_info (p.msymbol); |
c5aa993b | 5333 | } |
c906108c | 5334 | else |
c5aa993b | 5335 | { |
d4bf9040 | 5336 | print_symbol_info (p.symbol, p.block, last_filename); |
d01060f0 | 5337 | last_filename |
4206d69e | 5338 | = symtab_to_filename_for_display (p.symbol->symtab ()); |
c5aa993b | 5339 | } |
c906108c | 5340 | } |
c906108c SS |
5341 | } |
5342 | ||
4acfdd20 AB |
5343 | /* Structure to hold the values of the options used by the 'info variables' |
5344 | and 'info functions' commands. These correspond to the -q, -t, and -n | |
5345 | options. */ | |
5346 | ||
095252be | 5347 | struct info_vars_funcs_options |
4acfdd20 | 5348 | { |
491144b5 CB |
5349 | bool quiet = false; |
5350 | bool exclude_minsyms = false; | |
e0700ba4 | 5351 | std::string type_regexp; |
4acfdd20 AB |
5352 | }; |
5353 | ||
5354 | /* The options used by the 'info variables' and 'info functions' | |
5355 | commands. */ | |
5356 | ||
095252be AT |
5357 | static const gdb::option::option_def info_vars_funcs_options_defs[] = { |
5358 | gdb::option::boolean_option_def<info_vars_funcs_options> { | |
4acfdd20 | 5359 | "q", |
095252be | 5360 | [] (info_vars_funcs_options *opt) { return &opt->quiet; }, |
4acfdd20 AB |
5361 | nullptr, /* show_cmd_cb */ |
5362 | nullptr /* set_doc */ | |
5363 | }, | |
5364 | ||
095252be | 5365 | gdb::option::boolean_option_def<info_vars_funcs_options> { |
4acfdd20 | 5366 | "n", |
095252be | 5367 | [] (info_vars_funcs_options *opt) { return &opt->exclude_minsyms; }, |
4acfdd20 AB |
5368 | nullptr, /* show_cmd_cb */ |
5369 | nullptr /* set_doc */ | |
5370 | }, | |
5371 | ||
095252be | 5372 | gdb::option::string_option_def<info_vars_funcs_options> { |
4acfdd20 | 5373 | "t", |
e0700ba4 | 5374 | [] (info_vars_funcs_options *opt) { return &opt->type_regexp; }, |
4acfdd20 AB |
5375 | nullptr, /* show_cmd_cb */ |
5376 | nullptr /* set_doc */ | |
5377 | } | |
5378 | }; | |
5379 | ||
5380 | /* Returns the option group used by 'info variables' and 'info | |
5381 | functions'. */ | |
5382 | ||
5383 | static gdb::option::option_def_group | |
095252be | 5384 | make_info_vars_funcs_options_def_group (info_vars_funcs_options *opts) |
4acfdd20 | 5385 | { |
095252be | 5386 | return {{info_vars_funcs_options_defs}, opts}; |
4acfdd20 AB |
5387 | } |
5388 | ||
5389 | /* Command completer for 'info variables' and 'info functions'. */ | |
5390 | ||
5391 | static void | |
095252be AT |
5392 | info_vars_funcs_command_completer (struct cmd_list_element *ignore, |
5393 | completion_tracker &tracker, | |
5394 | const char *text, const char * /* word */) | |
4acfdd20 AB |
5395 | { |
5396 | const auto group | |
095252be | 5397 | = make_info_vars_funcs_options_def_group (nullptr); |
4acfdd20 AB |
5398 | if (gdb::option::complete_options |
5399 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
5400 | return; | |
5401 | ||
5402 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
5403 | symbol_completer (ignore, tracker, text, word); | |
5404 | } | |
5405 | ||
b16507e0 AB |
5406 | /* Implement the 'info variables' command. */ |
5407 | ||
0b39b52e | 5408 | static void |
12615cba | 5409 | info_variables_command (const char *args, int from_tty) |
0b39b52e | 5410 | { |
095252be AT |
5411 | info_vars_funcs_options opts; |
5412 | auto grp = make_info_vars_funcs_options_def_group (&opts); | |
4acfdd20 AB |
5413 | gdb::option::process_options |
5414 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5415 | if (args != nullptr && *args == '\0') | |
5416 | args = nullptr; | |
b16507e0 | 5417 | |
e0700ba4 | 5418 | symtab_symbol_info |
c92d4de1 | 5419 | (opts.quiet, opts.exclude_minsyms, args, VAR_DOMAIN, |
e0700ba4 SM |
5420 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), |
5421 | from_tty); | |
0b39b52e TT |
5422 | } |
5423 | ||
b16507e0 | 5424 | /* Implement the 'info functions' command. */ |
12615cba | 5425 | |
c906108c | 5426 | static void |
12615cba | 5427 | info_functions_command (const char *args, int from_tty) |
c906108c | 5428 | { |
095252be AT |
5429 | info_vars_funcs_options opts; |
5430 | ||
5431 | auto grp = make_info_vars_funcs_options_def_group (&opts); | |
4acfdd20 AB |
5432 | gdb::option::process_options |
5433 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5434 | if (args != nullptr && *args == '\0') | |
5435 | args = nullptr; | |
b16507e0 | 5436 | |
e0700ba4 | 5437 | symtab_symbol_info |
c92d4de1 | 5438 | (opts.quiet, opts.exclude_minsyms, args, FUNCTION_DOMAIN, |
e0700ba4 SM |
5439 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), |
5440 | from_tty); | |
c906108c SS |
5441 | } |
5442 | ||
a8eab7c6 AB |
5443 | /* Holds the -q option for the 'info types' command. */ |
5444 | ||
5445 | struct info_types_options | |
5446 | { | |
491144b5 | 5447 | bool quiet = false; |
a8eab7c6 AB |
5448 | }; |
5449 | ||
5450 | /* The options used by the 'info types' command. */ | |
5451 | ||
5452 | static const gdb::option::option_def info_types_options_defs[] = { | |
5453 | gdb::option::boolean_option_def<info_types_options> { | |
5454 | "q", | |
5455 | [] (info_types_options *opt) { return &opt->quiet; }, | |
5456 | nullptr, /* show_cmd_cb */ | |
5457 | nullptr /* set_doc */ | |
5458 | } | |
5459 | }; | |
5460 | ||
5461 | /* Returns the option group used by 'info types'. */ | |
5462 | ||
5463 | static gdb::option::option_def_group | |
5464 | make_info_types_options_def_group (info_types_options *opts) | |
5465 | { | |
5466 | return {{info_types_options_defs}, opts}; | |
5467 | } | |
5468 | ||
5469 | /* Implement the 'info types' command. */ | |
357e46e7 | 5470 | |
c906108c | 5471 | static void |
a8eab7c6 | 5472 | info_types_command (const char *args, int from_tty) |
c906108c | 5473 | { |
a8eab7c6 AB |
5474 | info_types_options opts; |
5475 | ||
5476 | auto grp = make_info_types_options_def_group (&opts); | |
5477 | gdb::option::process_options | |
5478 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5479 | if (args != nullptr && *args == '\0') | |
5480 | args = nullptr; | |
c92d4de1 TT |
5481 | symtab_symbol_info (opts.quiet, false, args, TYPE_DOMAIN, nullptr, |
5482 | from_tty); | |
a8eab7c6 AB |
5483 | } |
5484 | ||
5485 | /* Command completer for 'info types' command. */ | |
5486 | ||
5487 | static void | |
5488 | info_types_command_completer (struct cmd_list_element *ignore, | |
5489 | completion_tracker &tracker, | |
5490 | const char *text, const char * /* word */) | |
5491 | { | |
5492 | const auto group | |
5493 | = make_info_types_options_def_group (nullptr); | |
5494 | if (gdb::option::complete_options | |
5495 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
5496 | return; | |
5497 | ||
5498 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
5499 | symbol_completer (ignore, tracker, text, word); | |
c906108c SS |
5500 | } |
5501 | ||
59c35742 AB |
5502 | /* Implement the 'info modules' command. */ |
5503 | ||
5504 | static void | |
5505 | info_modules_command (const char *args, int from_tty) | |
5506 | { | |
5507 | info_types_options opts; | |
5508 | ||
5509 | auto grp = make_info_types_options_def_group (&opts); | |
5510 | gdb::option::process_options | |
5511 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5512 | if (args != nullptr && *args == '\0') | |
5513 | args = nullptr; | |
c92d4de1 | 5514 | symtab_symbol_info (opts.quiet, true, args, MODULE_DOMAIN, nullptr, |
59c35742 AB |
5515 | from_tty); |
5516 | } | |
5517 | ||
03d83cd5 RB |
5518 | /* Implement the 'info main' command. */ |
5519 | ||
5520 | static void | |
5521 | info_main_command (const char *args, int from_tty) | |
5522 | { | |
5523 | gdb_printf ("%s\n", main_name ()); | |
5524 | } | |
5525 | ||
c906108c | 5526 | static void |
0b39b52e | 5527 | rbreak_command (const char *regexp, int from_tty) |
c906108c | 5528 | { |
c80049d3 | 5529 | std::string string; |
470c0b1c | 5530 | const char *file_name = nullptr; |
c906108c | 5531 | |
470c0b1c | 5532 | if (regexp != nullptr) |
8bd10a10 | 5533 | { |
0b39b52e | 5534 | const char *colon = strchr (regexp, ':'); |
433759f7 | 5535 | |
2c074f49 HD |
5536 | /* Ignore the colon if it is part of a Windows drive. */ |
5537 | if (HAS_DRIVE_SPEC (regexp) | |
5538 | && (regexp[2] == '/' || regexp[2] == '\\')) | |
5539 | colon = strchr (STRIP_DRIVE_SPEC (regexp), ':'); | |
5540 | ||
8bd10a10 CM |
5541 | if (colon && *(colon + 1) != ':') |
5542 | { | |
5543 | int colon_index; | |
96142726 | 5544 | char *local_name; |
8bd10a10 CM |
5545 | |
5546 | colon_index = colon - regexp; | |
224c3ddb | 5547 | local_name = (char *) alloca (colon_index + 1); |
96142726 TT |
5548 | memcpy (local_name, regexp, colon_index); |
5549 | local_name[colon_index--] = 0; | |
5550 | while (isspace (local_name[colon_index])) | |
5551 | local_name[colon_index--] = 0; | |
5552 | file_name = local_name; | |
529480d0 | 5553 | regexp = skip_spaces (colon + 1); |
8bd10a10 CM |
5554 | } |
5555 | } | |
5556 | ||
c92d4de1 | 5557 | global_symbol_searcher spec (SEARCH_FUNCTION_DOMAIN, regexp); |
470c0b1c AB |
5558 | if (file_name != nullptr) |
5559 | spec.filenames.push_back (file_name); | |
5560 | std::vector<symbol_search> symbols = spec.search (); | |
c906108c | 5561 | |
c80049d3 | 5562 | scoped_rbreak_breakpoints finalize; |
b9c04fb2 | 5563 | for (const symbol_search &p : symbols) |
c906108c | 5564 | { |
b9c04fb2 | 5565 | if (p.msymbol.minsym == NULL) |
c5aa993b | 5566 | { |
4206d69e | 5567 | struct symtab *symtab = p.symbol->symtab (); |
d01060f0 | 5568 | const char *fullname = symtab_to_fullname (symtab); |
05cba821 | 5569 | |
c80049d3 | 5570 | string = string_printf ("%s:'%s'", fullname, |
987012b8 | 5571 | p.symbol->linkage_name ()); |
c80049d3 | 5572 | break_command (&string[0], from_tty); |
d4bf9040 | 5573 | print_symbol_info (p.symbol, p.block, nullptr); |
c5aa993b | 5574 | } |
c906108c | 5575 | else |
c5aa993b | 5576 | { |
c80049d3 | 5577 | string = string_printf ("'%s'", |
c9d95fa3 | 5578 | p.msymbol.minsym->linkage_name ()); |
6214f497 | 5579 | |
c80049d3 | 5580 | break_command (&string[0], from_tty); |
6cb06a8c TT |
5581 | gdb_printf ("<function, no debug info> %s;\n", |
5582 | p.msymbol.minsym->print_name ()); | |
c5aa993b | 5583 | } |
c906108c | 5584 | } |
c906108c | 5585 | } |
c906108c | 5586 | \f |
c5aa993b | 5587 | |
c62446b1 | 5588 | /* Evaluate if SYMNAME matches LOOKUP_NAME. */ |
1976171a JK |
5589 | |
5590 | static int | |
c62446b1 | 5591 | compare_symbol_name (const char *symbol_name, language symbol_language, |
b5ec771e | 5592 | const lookup_name_info &lookup_name, |
b5ec771e PA |
5593 | completion_match_result &match_res) |
5594 | { | |
d4c2a405 | 5595 | const language_defn *lang = language_def (symbol_language); |
1976171a | 5596 | |
b5ec771e | 5597 | symbol_name_matcher_ftype *name_match |
c9debfb9 | 5598 | = lang->get_symbol_name_matcher (lookup_name); |
1976171a | 5599 | |
a207cff2 | 5600 | return name_match (symbol_name, lookup_name, &match_res); |
1976171a JK |
5601 | } |
5602 | ||
b5ec771e | 5603 | /* See symtab.h. */ |
c906108c | 5604 | |
e08bd6c5 | 5605 | bool |
eb3ff9a5 | 5606 | completion_list_add_name (completion_tracker &tracker, |
b5ec771e | 5607 | language symbol_language, |
eb3ff9a5 | 5608 | const char *symname, |
b5ec771e | 5609 | const lookup_name_info &lookup_name, |
0d5cff50 | 5610 | const char *text, const char *word) |
c906108c | 5611 | { |
b5ec771e PA |
5612 | completion_match_result &match_res |
5613 | = tracker.reset_completion_match_result (); | |
5614 | ||
c378eb4e | 5615 | /* Clip symbols that cannot match. */ |
c62446b1 | 5616 | if (!compare_symbol_name (symname, symbol_language, lookup_name, match_res)) |
e08bd6c5 | 5617 | return false; |
c906108c | 5618 | |
b5ec771e PA |
5619 | /* Refresh SYMNAME from the match string. It's potentially |
5620 | different depending on language. (E.g., on Ada, the match may be | |
5621 | the encoded symbol name wrapped in "<>"). */ | |
5622 | symname = match_res.match.match (); | |
5623 | gdb_assert (symname != NULL); | |
5624 | ||
c906108c | 5625 | /* We have a match for a completion, so add SYMNAME to the current list |
c378eb4e | 5626 | of matches. Note that the name is moved to freshly malloc'd space. */ |
c906108c SS |
5627 | |
5628 | { | |
60a20c19 PA |
5629 | gdb::unique_xmalloc_ptr<char> completion |
5630 | = make_completion_match_str (symname, text, word); | |
ef0b411a | 5631 | |
a207cff2 PA |
5632 | /* Here we pass the match-for-lcd object to add_completion. Some |
5633 | languages match the user text against substrings of symbol | |
5634 | names in some cases. E.g., in C++, "b push_ba" completes to | |
5635 | "std::vector::push_back", "std::string::push_back", etc., and | |
5636 | in this case we want the completion lowest common denominator | |
5637 | to be "push_back" instead of "std::". */ | |
5638 | tracker.add_completion (std::move (completion), | |
a22ecf70 | 5639 | &match_res.match_for_lcd, text, word); |
c906108c | 5640 | } |
e08bd6c5 PA |
5641 | |
5642 | return true; | |
c906108c SS |
5643 | } |
5644 | ||
6da67eb1 PA |
5645 | /* completion_list_add_name wrapper for struct symbol. */ |
5646 | ||
5647 | static void | |
eb3ff9a5 PA |
5648 | completion_list_add_symbol (completion_tracker &tracker, |
5649 | symbol *sym, | |
b5ec771e | 5650 | const lookup_name_info &lookup_name, |
6da67eb1 PA |
5651 | const char *text, const char *word) |
5652 | { | |
e08bd6c5 PA |
5653 | if (!completion_list_add_name (tracker, sym->language (), |
5654 | sym->natural_name (), | |
5655 | lookup_name, text, word)) | |
5656 | return; | |
19a2740f AB |
5657 | |
5658 | /* C++ function symbols include the parameters within both the msymbol | |
5659 | name and the symbol name. The problem is that the msymbol name will | |
5660 | describe the parameters in the most basic way, with typedefs stripped | |
5661 | out, while the symbol name will represent the types as they appear in | |
5662 | the program. This means we will see duplicate entries in the | |
5663 | completion tracker. The following converts the symbol name back to | |
5664 | the msymbol name and removes the msymbol name from the completion | |
5665 | tracker. */ | |
5666 | if (sym->language () == language_cplus | |
66d7f48f | 5667 | && sym->aclass () == LOC_BLOCK) |
19a2740f AB |
5668 | { |
5669 | /* The call to canonicalize returns the empty string if the input | |
5670 | string is already in canonical form, thanks to this we don't | |
5671 | remove the symbol we just added above. */ | |
596dc4ad | 5672 | gdb::unique_xmalloc_ptr<char> str |
19a2740f | 5673 | = cp_canonicalize_string_no_typedefs (sym->natural_name ()); |
596dc4ad TT |
5674 | if (str != nullptr) |
5675 | tracker.remove_completion (str.get ()); | |
19a2740f | 5676 | } |
6da67eb1 PA |
5677 | } |
5678 | ||
5679 | /* completion_list_add_name wrapper for struct minimal_symbol. */ | |
5680 | ||
5681 | static void | |
eb3ff9a5 PA |
5682 | completion_list_add_msymbol (completion_tracker &tracker, |
5683 | minimal_symbol *sym, | |
b5ec771e | 5684 | const lookup_name_info &lookup_name, |
6da67eb1 PA |
5685 | const char *text, const char *word) |
5686 | { | |
c1b5c1eb | 5687 | completion_list_add_name (tracker, sym->language (), |
c9d95fa3 | 5688 | sym->natural_name (), |
1b026119 | 5689 | lookup_name, text, word); |
6da67eb1 PA |
5690 | } |
5691 | ||
b5ec771e | 5692 | |
69636828 AF |
5693 | /* ObjC: In case we are completing on a selector, look as the msymbol |
5694 | again and feed all the selectors into the mill. */ | |
5695 | ||
5696 | static void | |
eb3ff9a5 PA |
5697 | completion_list_objc_symbol (completion_tracker &tracker, |
5698 | struct minimal_symbol *msymbol, | |
b5ec771e | 5699 | const lookup_name_info &lookup_name, |
0d5cff50 | 5700 | const char *text, const char *word) |
69636828 AF |
5701 | { |
5702 | static char *tmp = NULL; | |
5703 | static unsigned int tmplen = 0; | |
9af17804 | 5704 | |
0d5cff50 | 5705 | const char *method, *category, *selector; |
69636828 | 5706 | char *tmp2 = NULL; |
9af17804 | 5707 | |
c9d95fa3 | 5708 | method = msymbol->natural_name (); |
69636828 AF |
5709 | |
5710 | /* Is it a method? */ | |
5711 | if ((method[0] != '-') && (method[0] != '+')) | |
5712 | return; | |
5713 | ||
1b026119 | 5714 | if (text[0] == '[') |
69636828 | 5715 | /* Complete on shortened method method. */ |
b5ec771e PA |
5716 | completion_list_add_name (tracker, language_objc, |
5717 | method + 1, | |
5718 | lookup_name, | |
1b026119 | 5719 | text, word); |
9af17804 | 5720 | |
69636828 AF |
5721 | while ((strlen (method) + 1) >= tmplen) |
5722 | { | |
5723 | if (tmplen == 0) | |
5724 | tmplen = 1024; | |
5725 | else | |
5726 | tmplen *= 2; | |
224c3ddb | 5727 | tmp = (char *) xrealloc (tmp, tmplen); |
69636828 AF |
5728 | } |
5729 | selector = strchr (method, ' '); | |
5730 | if (selector != NULL) | |
5731 | selector++; | |
9af17804 | 5732 | |
69636828 | 5733 | category = strchr (method, '('); |
9af17804 | 5734 | |
69636828 AF |
5735 | if ((category != NULL) && (selector != NULL)) |
5736 | { | |
5737 | memcpy (tmp, method, (category - method)); | |
5738 | tmp[category - method] = ' '; | |
5739 | memcpy (tmp + (category - method) + 1, selector, strlen (selector) + 1); | |
b5ec771e | 5740 | completion_list_add_name (tracker, language_objc, tmp, |
1b026119 PA |
5741 | lookup_name, text, word); |
5742 | if (text[0] == '[') | |
b5ec771e | 5743 | completion_list_add_name (tracker, language_objc, tmp + 1, |
1b026119 | 5744 | lookup_name, text, word); |
69636828 | 5745 | } |
9af17804 | 5746 | |
69636828 AF |
5747 | if (selector != NULL) |
5748 | { | |
5749 | /* Complete on selector only. */ | |
5750 | strcpy (tmp, selector); | |
5751 | tmp2 = strchr (tmp, ']'); | |
5752 | if (tmp2 != NULL) | |
5753 | *tmp2 = '\0'; | |
9af17804 | 5754 | |
b5ec771e | 5755 | completion_list_add_name (tracker, language_objc, tmp, |
1b026119 | 5756 | lookup_name, text, word); |
69636828 AF |
5757 | } |
5758 | } | |
5759 | ||
5760 | /* Break the non-quoted text based on the characters which are in | |
c378eb4e | 5761 | symbols. FIXME: This should probably be language-specific. */ |
69636828 | 5762 | |
6f937416 PA |
5763 | static const char * |
5764 | language_search_unquoted_string (const char *text, const char *p) | |
69636828 AF |
5765 | { |
5766 | for (; p > text; --p) | |
5767 | { | |
5768 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0') | |
5769 | continue; | |
5770 | else | |
5771 | { | |
5772 | if ((current_language->la_language == language_objc)) | |
5773 | { | |
c378eb4e | 5774 | if (p[-1] == ':') /* Might be part of a method name. */ |
69636828 AF |
5775 | continue; |
5776 | else if (p[-1] == '[' && (p[-2] == '-' || p[-2] == '+')) | |
c378eb4e | 5777 | p -= 2; /* Beginning of a method name. */ |
69636828 | 5778 | else if (p[-1] == ' ' || p[-1] == '(' || p[-1] == ')') |
c378eb4e | 5779 | { /* Might be part of a method name. */ |
6f937416 | 5780 | const char *t = p; |
69636828 AF |
5781 | |
5782 | /* Seeing a ' ' or a '(' is not conclusive evidence | |
5783 | that we are in the middle of a method name. However, | |
5784 | finding "-[" or "+[" should be pretty un-ambiguous. | |
5785 | Unfortunately we have to find it now to decide. */ | |
5786 | ||
5787 | while (t > text) | |
5788 | if (isalnum (t[-1]) || t[-1] == '_' || | |
5789 | t[-1] == ' ' || t[-1] == ':' || | |
5790 | t[-1] == '(' || t[-1] == ')') | |
5791 | --t; | |
5792 | else | |
5793 | break; | |
5794 | ||
5795 | if (t[-1] == '[' && (t[-2] == '-' || t[-2] == '+')) | |
c378eb4e MS |
5796 | p = t - 2; /* Method name detected. */ |
5797 | /* Else we leave with p unchanged. */ | |
69636828 AF |
5798 | } |
5799 | } | |
5800 | break; | |
5801 | } | |
5802 | } | |
5803 | return p; | |
5804 | } | |
5805 | ||
edb3359d | 5806 | static void |
eb3ff9a5 PA |
5807 | completion_list_add_fields (completion_tracker &tracker, |
5808 | struct symbol *sym, | |
b5ec771e | 5809 | const lookup_name_info &lookup_name, |
eb3ff9a5 | 5810 | const char *text, const char *word) |
edb3359d | 5811 | { |
66d7f48f | 5812 | if (sym->aclass () == LOC_TYPEDEF) |
edb3359d | 5813 | { |
5f9c5a63 | 5814 | struct type *t = sym->type (); |
78134374 | 5815 | enum type_code c = t->code (); |
edb3359d DJ |
5816 | int j; |
5817 | ||
5818 | if (c == TYPE_CODE_UNION || c == TYPE_CODE_STRUCT) | |
1f704f76 | 5819 | for (j = TYPE_N_BASECLASSES (t); j < t->num_fields (); j++) |
33d16dd9 | 5820 | if (t->field (j).name ()) |
c1b5c1eb | 5821 | completion_list_add_name (tracker, sym->language (), |
33d16dd9 | 5822 | t->field (j).name (), |
1b026119 | 5823 | lookup_name, text, word); |
edb3359d DJ |
5824 | } |
5825 | } | |
5826 | ||
f9d67a22 PA |
5827 | /* See symtab.h. */ |
5828 | ||
5829 | bool | |
5830 | symbol_is_function_or_method (symbol *sym) | |
5831 | { | |
5f9c5a63 | 5832 | switch (sym->type ()->code ()) |
f9d67a22 PA |
5833 | { |
5834 | case TYPE_CODE_FUNC: | |
5835 | case TYPE_CODE_METHOD: | |
5836 | return true; | |
5837 | default: | |
5838 | return false; | |
5839 | } | |
5840 | } | |
5841 | ||
5842 | /* See symtab.h. */ | |
5843 | ||
5844 | bool | |
5845 | symbol_is_function_or_method (minimal_symbol *msymbol) | |
5846 | { | |
60f62e2b | 5847 | switch (msymbol->type ()) |
f9d67a22 PA |
5848 | { |
5849 | case mst_text: | |
5850 | case mst_text_gnu_ifunc: | |
5851 | case mst_solib_trampoline: | |
5852 | case mst_file_text: | |
5853 | return true; | |
5854 | default: | |
5855 | return false; | |
5856 | } | |
5857 | } | |
5858 | ||
ca31ab1d PA |
5859 | /* See symtab.h. */ |
5860 | ||
5861 | bound_minimal_symbol | |
5862 | find_gnu_ifunc (const symbol *sym) | |
5863 | { | |
66d7f48f | 5864 | if (sym->aclass () != LOC_BLOCK) |
ca31ab1d PA |
5865 | return {}; |
5866 | ||
987012b8 | 5867 | lookup_name_info lookup_name (sym->search_name (), |
ca31ab1d | 5868 | symbol_name_match_type::SEARCH_NAME); |
e19b2d94 | 5869 | struct objfile *objfile = sym->objfile (); |
ca31ab1d | 5870 | |
6395b628 | 5871 | CORE_ADDR address = sym->value_block ()->entry_pc (); |
ca31ab1d PA |
5872 | minimal_symbol *ifunc = NULL; |
5873 | ||
5874 | iterate_over_minimal_symbols (objfile, lookup_name, | |
5875 | [&] (minimal_symbol *minsym) | |
5876 | { | |
60f62e2b SM |
5877 | if (minsym->type () == mst_text_gnu_ifunc |
5878 | || minsym->type () == mst_data_gnu_ifunc) | |
ca31ab1d | 5879 | { |
4aeddc50 | 5880 | CORE_ADDR msym_addr = minsym->value_address (objfile); |
60f62e2b | 5881 | if (minsym->type () == mst_data_gnu_ifunc) |
f50776aa | 5882 | { |
08feed99 | 5883 | struct gdbarch *gdbarch = objfile->arch (); |
328d42d8 SM |
5884 | msym_addr = gdbarch_convert_from_func_ptr_addr |
5885 | (gdbarch, msym_addr, current_inferior ()->top_target ()); | |
f50776aa PA |
5886 | } |
5887 | if (msym_addr == address) | |
5888 | { | |
5889 | ifunc = minsym; | |
5890 | return true; | |
5891 | } | |
ca31ab1d PA |
5892 | } |
5893 | return false; | |
5894 | }); | |
5895 | ||
5896 | if (ifunc != NULL) | |
5897 | return {ifunc, objfile}; | |
5898 | return {}; | |
5899 | } | |
5900 | ||
e11c72c7 GB |
5901 | /* Add matching symbols from SYMTAB to the current completion list. */ |
5902 | ||
5903 | static void | |
5904 | add_symtab_completions (struct compunit_symtab *cust, | |
eb3ff9a5 | 5905 | completion_tracker &tracker, |
f9d67a22 | 5906 | complete_symbol_mode mode, |
b5ec771e | 5907 | const lookup_name_info &lookup_name, |
e11c72c7 GB |
5908 | const char *text, const char *word, |
5909 | enum type_code code) | |
5910 | { | |
e11c72c7 GB |
5911 | int i; |
5912 | ||
ff6fa247 GB |
5913 | if (cust == NULL) |
5914 | return; | |
5915 | ||
e11c72c7 GB |
5916 | for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++) |
5917 | { | |
5918 | QUIT; | |
63d609de SM |
5919 | |
5920 | const struct block *b = cust->blockvector ()->block (i); | |
548a89df | 5921 | for (struct symbol *sym : block_iterator_range (b)) |
e11c72c7 | 5922 | { |
f9d67a22 PA |
5923 | if (completion_skip_symbol (mode, sym)) |
5924 | continue; | |
5925 | ||
e11c72c7 | 5926 | if (code == TYPE_CODE_UNDEF |
6c9c307c | 5927 | || (sym->domain () == STRUCT_DOMAIN |
5f9c5a63 | 5928 | && sym->type ()->code () == code)) |
eb3ff9a5 | 5929 | completion_list_add_symbol (tracker, sym, |
b5ec771e | 5930 | lookup_name, |
e11c72c7 GB |
5931 | text, word); |
5932 | } | |
5933 | } | |
5934 | } | |
5935 | ||
eb3ff9a5 PA |
5936 | void |
5937 | default_collect_symbol_completion_matches_break_on | |
b5ec771e PA |
5938 | (completion_tracker &tracker, complete_symbol_mode mode, |
5939 | symbol_name_match_type name_match_type, | |
eb3ff9a5 PA |
5940 | const char *text, const char *word, |
5941 | const char *break_on, enum type_code code) | |
c906108c | 5942 | { |
41d27058 JB |
5943 | /* Problem: All of the symbols have to be copied because readline |
5944 | frees them. I'm not going to worry about this; hopefully there | |
5945 | won't be that many. */ | |
5946 | ||
3977b71f | 5947 | const struct block *b; |
edb3359d | 5948 | const struct block *surrounding_static_block, *surrounding_global_block; |
c906108c | 5949 | /* The symbol we are completing on. Points in same buffer as text. */ |
6f937416 | 5950 | const char *sym_text; |
c906108c | 5951 | |
41d27058 | 5952 | /* Now look for the symbol we are supposed to complete on. */ |
c6756f62 PA |
5953 | if (mode == complete_symbol_mode::LINESPEC) |
5954 | sym_text = text; | |
5955 | else | |
01add95b SM |
5956 | { |
5957 | const char *p; | |
5958 | char quote_found; | |
5959 | const char *quote_pos = NULL; | |
c906108c | 5960 | |
01add95b SM |
5961 | /* First see if this is a quoted string. */ |
5962 | quote_found = '\0'; | |
5963 | for (p = text; *p != '\0'; ++p) | |
5964 | { | |
5965 | if (quote_found != '\0') | |
5966 | { | |
5967 | if (*p == quote_found) | |
5968 | /* Found close quote. */ | |
5969 | quote_found = '\0'; | |
5970 | else if (*p == '\\' && p[1] == quote_found) | |
5971 | /* A backslash followed by the quote character | |
5972 | doesn't end the string. */ | |
5973 | ++p; | |
5974 | } | |
5975 | else if (*p == '\'' || *p == '"') | |
5976 | { | |
5977 | quote_found = *p; | |
5978 | quote_pos = p; | |
5979 | } | |
5980 | } | |
5981 | if (quote_found == '\'') | |
5982 | /* A string within single quotes can be a symbol, so complete on it. */ | |
5983 | sym_text = quote_pos + 1; | |
5984 | else if (quote_found == '"') | |
5985 | /* A double-quoted string is never a symbol, nor does it make sense | |
5986 | to complete it any other way. */ | |
5987 | { | |
5988 | return; | |
5989 | } | |
5990 | else | |
5991 | { | |
5992 | /* It is not a quoted string. Break it based on the characters | |
5993 | which are in symbols. */ | |
5994 | while (p > text) | |
5995 | { | |
5996 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0' | |
5997 | || p[-1] == ':' || strchr (break_on, p[-1]) != NULL) | |
5998 | --p; | |
5999 | else | |
6000 | break; | |
6001 | } | |
6002 | sym_text = p; | |
6003 | } | |
6004 | } | |
c906108c | 6005 | |
1b026119 | 6006 | lookup_name_info lookup_name (sym_text, name_match_type, true); |
b5ec771e | 6007 | |
c906108c SS |
6008 | /* At this point scan through the misc symbol vectors and add each |
6009 | symbol you find to the list. Eventually we want to ignore | |
6010 | anything that isn't a text symbol (everything else will be | |
e11c72c7 | 6011 | handled by the psymtab code below). */ |
c906108c | 6012 | |
2f68a895 TT |
6013 | if (code == TYPE_CODE_UNDEF) |
6014 | { | |
2030c079 | 6015 | for (objfile *objfile : current_program_space->objfiles ()) |
2f68a895 | 6016 | { |
7932255d | 6017 | for (minimal_symbol *msymbol : objfile->msymbols ()) |
5325b9bf TT |
6018 | { |
6019 | QUIT; | |
9af17804 | 6020 | |
5325b9bf TT |
6021 | if (completion_skip_symbol (mode, msymbol)) |
6022 | continue; | |
f9d67a22 | 6023 | |
5325b9bf TT |
6024 | completion_list_add_msymbol (tracker, msymbol, lookup_name, |
6025 | sym_text, word); | |
eb3ff9a5 | 6026 | |
5325b9bf TT |
6027 | completion_list_objc_symbol (tracker, msymbol, lookup_name, |
6028 | sym_text, word); | |
6029 | } | |
2f68a895 TT |
6030 | } |
6031 | } | |
c906108c | 6032 | |
e11c72c7 | 6033 | /* Add completions for all currently loaded symbol tables. */ |
2030c079 | 6034 | for (objfile *objfile : current_program_space->objfiles ()) |
d8aeb77f | 6035 | { |
b669c953 | 6036 | for (compunit_symtab *cust : objfile->compunits ()) |
d8aeb77f TT |
6037 | add_symtab_completions (cust, tracker, mode, lookup_name, |
6038 | sym_text, word, code); | |
6039 | } | |
e11c72c7 | 6040 | |
14bc53a8 PA |
6041 | /* Look through the partial symtabs for all symbols which begin by |
6042 | matching SYM_TEXT. Expand all CUs that you find to the list. */ | |
6043 | expand_symtabs_matching (NULL, | |
b5ec771e PA |
6044 | lookup_name, |
6045 | NULL, | |
14bc53a8 PA |
6046 | [&] (compunit_symtab *symtab) /* expansion notify */ |
6047 | { | |
6048 | add_symtab_completions (symtab, | |
f9d67a22 | 6049 | tracker, mode, lookup_name, |
1b026119 | 6050 | sym_text, word, code); |
df35e626 | 6051 | return true; |
14bc53a8 | 6052 | }, |
03a8ea51 | 6053 | SEARCH_GLOBAL_BLOCK | SEARCH_STATIC_BLOCK, |
c92d4de1 | 6054 | SEARCH_ALL); |
e11c72c7 | 6055 | |
c906108c | 6056 | /* Search upwards from currently selected frame (so that we can |
edb3359d DJ |
6057 | complete on local vars). Also catch fields of types defined in |
6058 | this places which match our text string. Only complete on types | |
c378eb4e | 6059 | visible from current context. */ |
edb3359d DJ |
6060 | |
6061 | b = get_selected_block (0); | |
d24e14a0 TT |
6062 | surrounding_static_block = b == nullptr ? nullptr : b->static_block (); |
6063 | surrounding_global_block = b == nullptr ? nullptr : b->global_block (); | |
edb3359d DJ |
6064 | if (surrounding_static_block != NULL) |
6065 | while (b != surrounding_static_block) | |
6066 | { | |
6067 | QUIT; | |
c906108c | 6068 | |
548a89df | 6069 | for (struct symbol *sym : block_iterator_range (b)) |
edb3359d | 6070 | { |
2f68a895 TT |
6071 | if (code == TYPE_CODE_UNDEF) |
6072 | { | |
b5ec771e | 6073 | completion_list_add_symbol (tracker, sym, lookup_name, |
1b026119 | 6074 | sym_text, word); |
b5ec771e | 6075 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 6076 | sym_text, word); |
2f68a895 | 6077 | } |
6c9c307c | 6078 | else if (sym->domain () == STRUCT_DOMAIN |
5f9c5a63 | 6079 | && sym->type ()->code () == code) |
b5ec771e | 6080 | completion_list_add_symbol (tracker, sym, lookup_name, |
1b026119 | 6081 | sym_text, word); |
edb3359d | 6082 | } |
c5aa993b | 6083 | |
edb3359d DJ |
6084 | /* Stop when we encounter an enclosing function. Do not stop for |
6085 | non-inlined functions - the locals of the enclosing function | |
6086 | are in scope for a nested function. */ | |
a4dfe747 | 6087 | if (b->function () != NULL && b->inlined_p ()) |
edb3359d | 6088 | break; |
f135fe72 | 6089 | b = b->superblock (); |
edb3359d | 6090 | } |
c906108c | 6091 | |
edb3359d | 6092 | /* Add fields from the file's types; symbols will be added below. */ |
c906108c | 6093 | |
2f68a895 TT |
6094 | if (code == TYPE_CODE_UNDEF) |
6095 | { | |
6096 | if (surrounding_static_block != NULL) | |
548a89df | 6097 | for (struct symbol *sym : block_iterator_range (surrounding_static_block)) |
b5ec771e | 6098 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 6099 | sym_text, word); |
edb3359d | 6100 | |
2f68a895 | 6101 | if (surrounding_global_block != NULL) |
548a89df | 6102 | for (struct symbol *sym : block_iterator_range (surrounding_global_block)) |
b5ec771e | 6103 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 6104 | sym_text, word); |
2f68a895 | 6105 | } |
c906108c | 6106 | |
2f68a895 TT |
6107 | /* Skip macros if we are completing a struct tag -- arguable but |
6108 | usually what is expected. */ | |
1ac14a04 | 6109 | if (current_language->macro_expansion () == macro_expansion_c |
2f68a895 | 6110 | && code == TYPE_CODE_UNDEF) |
9a044a89 | 6111 | { |
f6c2623e | 6112 | gdb::unique_xmalloc_ptr<struct macro_scope> scope; |
9a044a89 | 6113 | |
14bc53a8 PA |
6114 | /* This adds a macro's name to the current completion list. */ |
6115 | auto add_macro_name = [&] (const char *macro_name, | |
6116 | const macro_definition *, | |
6117 | macro_source_file *, | |
6118 | int) | |
6119 | { | |
1b026119 PA |
6120 | completion_list_add_name (tracker, language_c, macro_name, |
6121 | lookup_name, sym_text, word); | |
14bc53a8 PA |
6122 | }; |
6123 | ||
9a044a89 TT |
6124 | /* Add any macros visible in the default scope. Note that this |
6125 | may yield the occasional wrong result, because an expression | |
6126 | might be evaluated in a scope other than the default. For | |
6127 | example, if the user types "break file:line if <TAB>", the | |
6128 | resulting expression will be evaluated at "file:line" -- but | |
6129 | at there does not seem to be a way to detect this at | |
6130 | completion time. */ | |
6131 | scope = default_macro_scope (); | |
6132 | if (scope) | |
f6c2623e TT |
6133 | macro_for_each_in_scope (scope->file, scope->line, |
6134 | add_macro_name); | |
9a044a89 TT |
6135 | |
6136 | /* User-defined macros are always visible. */ | |
14bc53a8 | 6137 | macro_for_each (macro_user_macros, add_macro_name); |
9a044a89 | 6138 | } |
ef0b411a GB |
6139 | } |
6140 | ||
eb3ff9a5 PA |
6141 | /* Collect all symbols (regardless of class) which begin by matching |
6142 | TEXT. */ | |
41d27058 | 6143 | |
eb3ff9a5 PA |
6144 | void |
6145 | collect_symbol_completion_matches (completion_tracker &tracker, | |
c6756f62 | 6146 | complete_symbol_mode mode, |
b5ec771e | 6147 | symbol_name_match_type name_match_type, |
eb3ff9a5 | 6148 | const char *text, const char *word) |
41d27058 | 6149 | { |
7e56227d AB |
6150 | current_language->collect_symbol_completion_matches (tracker, mode, |
6151 | name_match_type, | |
6152 | text, word, | |
6153 | TYPE_CODE_UNDEF); | |
2f68a895 TT |
6154 | } |
6155 | ||
eb3ff9a5 PA |
6156 | /* Like collect_symbol_completion_matches, but only collect |
6157 | STRUCT_DOMAIN symbols whose type code is CODE. */ | |
2f68a895 | 6158 | |
eb3ff9a5 PA |
6159 | void |
6160 | collect_symbol_completion_matches_type (completion_tracker &tracker, | |
6161 | const char *text, const char *word, | |
6162 | enum type_code code) | |
2f68a895 | 6163 | { |
c6756f62 | 6164 | complete_symbol_mode mode = complete_symbol_mode::EXPRESSION; |
b5ec771e | 6165 | symbol_name_match_type name_match_type = symbol_name_match_type::EXPRESSION; |
c6756f62 | 6166 | |
2f68a895 TT |
6167 | gdb_assert (code == TYPE_CODE_UNION |
6168 | || code == TYPE_CODE_STRUCT | |
2f68a895 | 6169 | || code == TYPE_CODE_ENUM); |
7e56227d AB |
6170 | current_language->collect_symbol_completion_matches (tracker, mode, |
6171 | name_match_type, | |
6172 | text, word, code); | |
41d27058 JB |
6173 | } |
6174 | ||
eb3ff9a5 PA |
6175 | /* Like collect_symbol_completion_matches, but collects a list of |
6176 | symbols defined in all source files named SRCFILE. */ | |
c94fdfd0 | 6177 | |
eb3ff9a5 PA |
6178 | void |
6179 | collect_file_symbol_completion_matches (completion_tracker &tracker, | |
c6756f62 | 6180 | complete_symbol_mode mode, |
b5ec771e | 6181 | symbol_name_match_type name_match_type, |
eb3ff9a5 PA |
6182 | const char *text, const char *word, |
6183 | const char *srcfile) | |
c94fdfd0 | 6184 | { |
c94fdfd0 | 6185 | /* The symbol we are completing on. Points in same buffer as text. */ |
6f937416 | 6186 | const char *sym_text; |
c94fdfd0 EZ |
6187 | |
6188 | /* Now look for the symbol we are supposed to complete on. | |
6189 | FIXME: This should be language-specific. */ | |
c6756f62 PA |
6190 | if (mode == complete_symbol_mode::LINESPEC) |
6191 | sym_text = text; | |
6192 | else | |
01add95b SM |
6193 | { |
6194 | const char *p; | |
6195 | char quote_found; | |
6196 | const char *quote_pos = NULL; | |
c94fdfd0 | 6197 | |
01add95b SM |
6198 | /* First see if this is a quoted string. */ |
6199 | quote_found = '\0'; | |
6200 | for (p = text; *p != '\0'; ++p) | |
6201 | { | |
6202 | if (quote_found != '\0') | |
6203 | { | |
6204 | if (*p == quote_found) | |
6205 | /* Found close quote. */ | |
6206 | quote_found = '\0'; | |
6207 | else if (*p == '\\' && p[1] == quote_found) | |
6208 | /* A backslash followed by the quote character | |
6209 | doesn't end the string. */ | |
6210 | ++p; | |
6211 | } | |
6212 | else if (*p == '\'' || *p == '"') | |
6213 | { | |
6214 | quote_found = *p; | |
6215 | quote_pos = p; | |
6216 | } | |
6217 | } | |
6218 | if (quote_found == '\'') | |
6219 | /* A string within single quotes can be a symbol, so complete on it. */ | |
6220 | sym_text = quote_pos + 1; | |
6221 | else if (quote_found == '"') | |
6222 | /* A double-quoted string is never a symbol, nor does it make sense | |
6223 | to complete it any other way. */ | |
6224 | { | |
6225 | return; | |
6226 | } | |
6227 | else | |
6228 | { | |
6229 | /* Not a quoted string. */ | |
6230 | sym_text = language_search_unquoted_string (text, p); | |
6231 | } | |
6232 | } | |
c94fdfd0 | 6233 | |
1b026119 | 6234 | lookup_name_info lookup_name (sym_text, name_match_type, true); |
b5ec771e | 6235 | |
8f14146e PA |
6236 | /* Go through symtabs for SRCFILE and check the externs and statics |
6237 | for symbols which match. */ | |
6238 | iterate_over_symtabs (srcfile, [&] (symtab *s) | |
c94fdfd0 | 6239 | { |
c6159652 | 6240 | add_symtab_completions (s->compunit (), |
f9d67a22 | 6241 | tracker, mode, lookup_name, |
1b026119 | 6242 | sym_text, word, TYPE_CODE_UNDEF); |
8f14146e PA |
6243 | return false; |
6244 | }); | |
e27852be DE |
6245 | } |
6246 | ||
c94fdfd0 EZ |
6247 | /* A helper function for make_source_files_completion_list. It adds |
6248 | another file name to a list of possible completions, growing the | |
6249 | list as necessary. */ | |
6250 | ||
6251 | static void | |
6f937416 | 6252 | add_filename_to_list (const char *fname, const char *text, const char *word, |
eb3ff9a5 | 6253 | completion_list *list) |
c94fdfd0 | 6254 | { |
60a20c19 | 6255 | list->emplace_back (make_completion_match_str (fname, text, word)); |
c94fdfd0 EZ |
6256 | } |
6257 | ||
6258 | static int | |
6259 | not_interesting_fname (const char *fname) | |
6260 | { | |
6261 | static const char *illegal_aliens[] = { | |
6262 | "_globals_", /* inserted by coff_symtab_read */ | |
6263 | NULL | |
6264 | }; | |
6265 | int i; | |
6266 | ||
6267 | for (i = 0; illegal_aliens[i]; i++) | |
6268 | { | |
0ba1096a | 6269 | if (filename_cmp (fname, illegal_aliens[i]) == 0) |
c94fdfd0 EZ |
6270 | return 1; |
6271 | } | |
6272 | return 0; | |
6273 | } | |
6274 | ||
f4655dee | 6275 | /* An object of this type is passed as the callback argument to |
ccefe4c4 TT |
6276 | map_partial_symbol_filenames. */ |
6277 | struct add_partial_filename_data | |
6278 | { | |
9fdc877b | 6279 | struct filename_seen_cache *filename_seen_cache; |
6f937416 PA |
6280 | const char *text; |
6281 | const char *word; | |
ccefe4c4 | 6282 | int text_len; |
eb3ff9a5 | 6283 | completion_list *list; |
f4655dee TT |
6284 | |
6285 | void operator() (const char *filename, const char *fullname); | |
ccefe4c4 TT |
6286 | }; |
6287 | ||
6288 | /* A callback for map_partial_symbol_filenames. */ | |
eca864fe | 6289 | |
f4655dee TT |
6290 | void |
6291 | add_partial_filename_data::operator() (const char *filename, | |
6292 | const char *fullname) | |
ccefe4c4 | 6293 | { |
ccefe4c4 TT |
6294 | if (not_interesting_fname (filename)) |
6295 | return; | |
f4655dee TT |
6296 | if (!filename_seen_cache->seen (filename) |
6297 | && filename_ncmp (filename, text, text_len) == 0) | |
ccefe4c4 TT |
6298 | { |
6299 | /* This file matches for a completion; add it to the | |
6300 | current list of matches. */ | |
f4655dee | 6301 | add_filename_to_list (filename, text, word, list); |
ccefe4c4 TT |
6302 | } |
6303 | else | |
6304 | { | |
6305 | const char *base_name = lbasename (filename); | |
433759f7 | 6306 | |
ccefe4c4 | 6307 | if (base_name != filename |
f4655dee TT |
6308 | && !filename_seen_cache->seen (base_name) |
6309 | && filename_ncmp (base_name, text, text_len) == 0) | |
6310 | add_filename_to_list (base_name, text, word, list); | |
ccefe4c4 TT |
6311 | } |
6312 | } | |
6313 | ||
eb3ff9a5 | 6314 | /* Return a list of all source files whose names begin with matching |
49c4e619 | 6315 | TEXT. The file names are looked up in the symbol tables of this |
eb3ff9a5 | 6316 | program. */ |
c94fdfd0 | 6317 | |
eb3ff9a5 | 6318 | completion_list |
6f937416 | 6319 | make_source_files_completion_list (const char *text, const char *word) |
c94fdfd0 | 6320 | { |
c94fdfd0 | 6321 | size_t text_len = strlen (text); |
eb3ff9a5 | 6322 | completion_list list; |
31889e00 | 6323 | const char *base_name; |
ccefe4c4 | 6324 | struct add_partial_filename_data datum; |
c94fdfd0 | 6325 | |
c94fdfd0 EZ |
6326 | if (!have_full_symbols () && !have_partial_symbols ()) |
6327 | return list; | |
6328 | ||
bbf2f4df | 6329 | filename_seen_cache filenames_seen; |
9fdc877b | 6330 | |
2030c079 | 6331 | for (objfile *objfile : current_program_space->objfiles ()) |
c94fdfd0 | 6332 | { |
b669c953 | 6333 | for (compunit_symtab *cu : objfile->compunits ()) |
c94fdfd0 | 6334 | { |
102cc235 | 6335 | for (symtab *s : cu->filetabs ()) |
8b31193a TT |
6336 | { |
6337 | if (not_interesting_fname (s->filename)) | |
6338 | continue; | |
6339 | if (!filenames_seen.seen (s->filename) | |
6340 | && filename_ncmp (s->filename, text, text_len) == 0) | |
6341 | { | |
6342 | /* This file matches for a completion; add it to the current | |
6343 | list of matches. */ | |
6344 | add_filename_to_list (s->filename, text, word, &list); | |
6345 | } | |
6346 | else | |
6347 | { | |
6348 | /* NOTE: We allow the user to type a base name when the | |
6349 | debug info records leading directories, but not the other | |
6350 | way around. This is what subroutines of breakpoint | |
6351 | command do when they parse file names. */ | |
6352 | base_name = lbasename (s->filename); | |
6353 | if (base_name != s->filename | |
6354 | && !filenames_seen.seen (base_name) | |
6355 | && filename_ncmp (base_name, text, text_len) == 0) | |
6356 | add_filename_to_list (base_name, text, word, &list); | |
6357 | } | |
6358 | } | |
c94fdfd0 EZ |
6359 | } |
6360 | } | |
6361 | ||
bbf2f4df | 6362 | datum.filename_seen_cache = &filenames_seen; |
ccefe4c4 TT |
6363 | datum.text = text; |
6364 | datum.word = word; | |
6365 | datum.text_len = text_len; | |
6366 | datum.list = &list; | |
f4655dee | 6367 | map_symbol_filenames (datum, false /*need_fullname*/); |
9fdc877b | 6368 | |
c94fdfd0 EZ |
6369 | return list; |
6370 | } | |
c906108c | 6371 | \f |
51cc5b07 | 6372 | /* Track MAIN */ |
32ac0d11 TT |
6373 | |
6374 | /* Return the "main_info" object for the current program space. If | |
6375 | the object has not yet been created, create it and fill in some | |
6376 | default values. */ | |
6377 | ||
a49d37f3 SM |
6378 | static main_info * |
6379 | get_main_info (program_space *pspace) | |
32ac0d11 | 6380 | { |
a49d37f3 | 6381 | main_info *info = main_progspace_key.get (pspace); |
32ac0d11 TT |
6382 | |
6383 | if (info == NULL) | |
6384 | { | |
3d548a53 TT |
6385 | /* It may seem strange to store the main name in the progspace |
6386 | and also in whatever objfile happens to see a main name in | |
6387 | its debug info. The reason for this is mainly historical: | |
6388 | gdb returned "main" as the name even if no function named | |
6389 | "main" was defined the program; and this approach lets us | |
6390 | keep compatibility. */ | |
a49d37f3 | 6391 | info = main_progspace_key.emplace (pspace); |
32ac0d11 TT |
6392 | } |
6393 | ||
6394 | return info; | |
6395 | } | |
6396 | ||
3d548a53 | 6397 | static void |
a49d37f3 | 6398 | set_main_name (program_space *pspace, const char *name, enum language lang) |
51cc5b07 | 6399 | { |
a49d37f3 | 6400 | main_info *info = get_main_info (pspace); |
32ac0d11 | 6401 | |
25eb2931 | 6402 | if (!info->name_of_main.empty ()) |
51cc5b07 | 6403 | { |
25eb2931 | 6404 | info->name_of_main.clear (); |
32ac0d11 | 6405 | info->language_of_main = language_unknown; |
51cc5b07 AC |
6406 | } |
6407 | if (name != NULL) | |
6408 | { | |
25eb2931 | 6409 | info->name_of_main = name; |
32ac0d11 | 6410 | info->language_of_main = lang; |
51cc5b07 AC |
6411 | } |
6412 | } | |
6413 | ||
ea53e89f JB |
6414 | /* Deduce the name of the main procedure, and set NAME_OF_MAIN |
6415 | accordingly. */ | |
6416 | ||
6417 | static void | |
6418 | find_main_name (void) | |
6419 | { | |
cd6c7346 | 6420 | const char *new_main_name; |
a49d37f3 | 6421 | program_space *pspace = current_program_space; |
3d548a53 TT |
6422 | |
6423 | /* First check the objfiles to see whether a debuginfo reader has | |
6424 | picked up the appropriate main name. Historically the main name | |
6425 | was found in a more or less random way; this approach instead | |
6426 | relies on the order of objfile creation -- which still isn't | |
6427 | guaranteed to get the correct answer, but is just probably more | |
6428 | accurate. */ | |
2030c079 | 6429 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 | 6430 | { |
4ea870ef TT |
6431 | objfile->compute_main_name (); |
6432 | ||
aed57c53 TT |
6433 | if (objfile->per_bfd->name_of_main != NULL) |
6434 | { | |
a49d37f3 SM |
6435 | set_main_name (pspace, |
6436 | objfile->per_bfd->name_of_main, | |
aed57c53 TT |
6437 | objfile->per_bfd->language_of_main); |
6438 | return; | |
6439 | } | |
6440 | } | |
ea53e89f JB |
6441 | |
6442 | /* Try to see if the main procedure is in Ada. */ | |
6443 | /* FIXME: brobecker/2005-03-07: Another way of doing this would | |
6444 | be to add a new method in the language vector, and call this | |
6445 | method for each language until one of them returns a non-empty | |
6446 | name. This would allow us to remove this hard-coded call to | |
6447 | an Ada function. It is not clear that this is a better approach | |
6448 | at this point, because all methods need to be written in a way | |
c378eb4e | 6449 | such that false positives never be returned. For instance, it is |
ea53e89f JB |
6450 | important that a method does not return a wrong name for the main |
6451 | procedure if the main procedure is actually written in a different | |
6452 | language. It is easy to guaranty this with Ada, since we use a | |
6453 | special symbol generated only when the main in Ada to find the name | |
c378eb4e | 6454 | of the main procedure. It is difficult however to see how this can |
ea53e89f JB |
6455 | be guarantied for languages such as C, for instance. This suggests |
6456 | that order of call for these methods becomes important, which means | |
6457 | a more complicated approach. */ | |
6458 | new_main_name = ada_main_name (); | |
6459 | if (new_main_name != NULL) | |
9af17804 | 6460 | { |
a49d37f3 | 6461 | set_main_name (pspace, new_main_name, language_ada); |
ea53e89f JB |
6462 | return; |
6463 | } | |
6464 | ||
63778547 IB |
6465 | new_main_name = d_main_name (); |
6466 | if (new_main_name != NULL) | |
6467 | { | |
a49d37f3 | 6468 | set_main_name (pspace, new_main_name, language_d); |
63778547 IB |
6469 | return; |
6470 | } | |
6471 | ||
a766d390 DE |
6472 | new_main_name = go_main_name (); |
6473 | if (new_main_name != NULL) | |
6474 | { | |
a49d37f3 | 6475 | set_main_name (pspace, new_main_name, language_go); |
a766d390 DE |
6476 | return; |
6477 | } | |
6478 | ||
cd6c7346 PM |
6479 | new_main_name = pascal_main_name (); |
6480 | if (new_main_name != NULL) | |
9af17804 | 6481 | { |
a49d37f3 | 6482 | set_main_name (pspace, new_main_name, language_pascal); |
cd6c7346 PM |
6483 | return; |
6484 | } | |
6485 | ||
ea53e89f JB |
6486 | /* The languages above didn't identify the name of the main procedure. |
6487 | Fallback to "main". */ | |
d3214198 TV |
6488 | |
6489 | /* Try to find language for main in psymtabs. */ | |
531bd038 MM |
6490 | bool symbol_found_p = false; |
6491 | gdbarch_iterate_over_objfiles_in_search_order | |
99d9c3b9 | 6492 | (current_inferior ()->arch (), |
a49d37f3 | 6493 | [&symbol_found_p, pspace] (objfile *obj) |
531bd038 MM |
6494 | { |
6495 | language lang | |
6c015214 | 6496 | = obj->lookup_global_symbol_language ("main", SEARCH_VFT, |
531bd038 MM |
6497 | &symbol_found_p); |
6498 | if (symbol_found_p) | |
6499 | { | |
a49d37f3 | 6500 | set_main_name (pspace, "main", lang); |
531bd038 MM |
6501 | return 1; |
6502 | } | |
6503 | ||
6504 | return 0; | |
6505 | }, nullptr); | |
6506 | ||
6507 | if (symbol_found_p) | |
6508 | return; | |
d3214198 | 6509 | |
a49d37f3 | 6510 | set_main_name (pspace, "main", language_unknown); |
ea53e89f JB |
6511 | } |
6512 | ||
cd215b2e TT |
6513 | /* See symtab.h. */ |
6514 | ||
6515 | const char * | |
6516 | main_name () | |
51cc5b07 | 6517 | { |
a49d37f3 | 6518 | main_info *info = get_main_info (current_program_space); |
32ac0d11 | 6519 | |
25eb2931 | 6520 | if (info->name_of_main.empty ()) |
ea53e89f JB |
6521 | find_main_name (); |
6522 | ||
25eb2931 | 6523 | return info->name_of_main.c_str (); |
51cc5b07 AC |
6524 | } |
6525 | ||
9e6c82ad TT |
6526 | /* Return the language of the main function. If it is not known, |
6527 | return language_unknown. */ | |
6528 | ||
6529 | enum language | |
6530 | main_language (void) | |
6531 | { | |
a49d37f3 | 6532 | main_info *info = get_main_info (current_program_space); |
32ac0d11 | 6533 | |
25eb2931 | 6534 | if (info->name_of_main.empty ()) |
32ac0d11 TT |
6535 | find_main_name (); |
6536 | ||
6537 | return info->language_of_main; | |
9e6c82ad TT |
6538 | } |
6539 | ||
a6c727b2 DJ |
6540 | /* Return 1 if the supplied producer string matches the ARM RealView |
6541 | compiler (armcc). */ | |
6542 | ||
ececd218 | 6543 | bool |
a6c727b2 DJ |
6544 | producer_is_realview (const char *producer) |
6545 | { | |
6546 | static const char *const arm_idents[] = { | |
6547 | "ARM C Compiler, ADS", | |
6548 | "Thumb C Compiler, ADS", | |
6549 | "ARM C++ Compiler, ADS", | |
6550 | "Thumb C++ Compiler, ADS", | |
6551 | "ARM/Thumb C/C++ Compiler, RVCT", | |
6552 | "ARM C/C++ Compiler, RVCT" | |
6553 | }; | |
a6c727b2 DJ |
6554 | |
6555 | if (producer == NULL) | |
ececd218 | 6556 | return false; |
a6c727b2 | 6557 | |
696d6f4d TT |
6558 | for (const char *ident : arm_idents) |
6559 | if (startswith (producer, ident)) | |
ececd218 | 6560 | return true; |
a6c727b2 | 6561 | |
ececd218 | 6562 | return false; |
a6c727b2 | 6563 | } |
ed0616c6 | 6564 | |
f1e6e072 TT |
6565 | \f |
6566 | ||
6567 | /* The next index to hand out in response to a registration request. */ | |
6568 | ||
6569 | static int next_aclass_value = LOC_FINAL_VALUE; | |
6570 | ||
6571 | /* The maximum number of "aclass" registrations we support. This is | |
6572 | constant for convenience. */ | |
658d5e0c | 6573 | #define MAX_SYMBOL_IMPLS (LOC_FINAL_VALUE + 11) |
f1e6e072 TT |
6574 | |
6575 | /* The objects representing the various "aclass" values. The elements | |
6576 | from 0 up to LOC_FINAL_VALUE-1 represent themselves, and subsequent | |
6577 | elements are those registered at gdb initialization time. */ | |
6578 | ||
6579 | static struct symbol_impl symbol_impl[MAX_SYMBOL_IMPLS]; | |
6580 | ||
6581 | /* The globally visible pointer. This is separate from 'symbol_impl' | |
6582 | so that it can be const. */ | |
6583 | ||
6bc3c5b4 | 6584 | gdb::array_view<const struct symbol_impl> symbol_impls (symbol_impl); |
f1e6e072 TT |
6585 | |
6586 | /* Make sure we saved enough room in struct symbol. */ | |
6587 | ||
69f6730d | 6588 | static_assert (MAX_SYMBOL_IMPLS <= (1 << SYMBOL_ACLASS_BITS)); |
f1e6e072 TT |
6589 | |
6590 | /* Register a computed symbol type. ACLASS must be LOC_COMPUTED. OPS | |
6591 | is the ops vector associated with this index. This returns the new | |
6592 | index, which should be used as the aclass_index field for symbols | |
6593 | of this type. */ | |
6594 | ||
6595 | int | |
6596 | register_symbol_computed_impl (enum address_class aclass, | |
6597 | const struct symbol_computed_ops *ops) | |
6598 | { | |
6599 | int result = next_aclass_value++; | |
6600 | ||
6601 | gdb_assert (aclass == LOC_COMPUTED); | |
6602 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6603 | symbol_impl[result].aclass = aclass; | |
6604 | symbol_impl[result].ops_computed = ops; | |
6605 | ||
24d6c2a0 TT |
6606 | /* Sanity check OPS. */ |
6607 | gdb_assert (ops != NULL); | |
6608 | gdb_assert (ops->tracepoint_var_ref != NULL); | |
6609 | gdb_assert (ops->describe_location != NULL); | |
0b31a4bc | 6610 | gdb_assert (ops->get_symbol_read_needs != NULL); |
24d6c2a0 TT |
6611 | gdb_assert (ops->read_variable != NULL); |
6612 | ||
f1e6e072 TT |
6613 | return result; |
6614 | } | |
6615 | ||
6616 | /* Register a function with frame base type. ACLASS must be LOC_BLOCK. | |
6617 | OPS is the ops vector associated with this index. This returns the | |
6618 | new index, which should be used as the aclass_index field for symbols | |
6619 | of this type. */ | |
6620 | ||
6621 | int | |
6622 | register_symbol_block_impl (enum address_class aclass, | |
6623 | const struct symbol_block_ops *ops) | |
6624 | { | |
6625 | int result = next_aclass_value++; | |
6626 | ||
6627 | gdb_assert (aclass == LOC_BLOCK); | |
6628 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6629 | symbol_impl[result].aclass = aclass; | |
6630 | symbol_impl[result].ops_block = ops; | |
6631 | ||
6632 | /* Sanity check OPS. */ | |
6633 | gdb_assert (ops != NULL); | |
36ed3d84 TT |
6634 | gdb_assert (ops->find_frame_base_location != nullptr |
6635 | || ops->get_block_value != nullptr); | |
f1e6e072 TT |
6636 | |
6637 | return result; | |
6638 | } | |
6639 | ||
6640 | /* Register a register symbol type. ACLASS must be LOC_REGISTER or | |
6641 | LOC_REGPARM_ADDR. OPS is the register ops vector associated with | |
6642 | this index. This returns the new index, which should be used as | |
6643 | the aclass_index field for symbols of this type. */ | |
6644 | ||
6645 | int | |
6646 | register_symbol_register_impl (enum address_class aclass, | |
6647 | const struct symbol_register_ops *ops) | |
6648 | { | |
6649 | int result = next_aclass_value++; | |
6650 | ||
6651 | gdb_assert (aclass == LOC_REGISTER || aclass == LOC_REGPARM_ADDR); | |
6652 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6653 | symbol_impl[result].aclass = aclass; | |
6654 | symbol_impl[result].ops_register = ops; | |
6655 | ||
6656 | return result; | |
6657 | } | |
6658 | ||
6659 | /* Initialize elements of 'symbol_impl' for the constants in enum | |
6660 | address_class. */ | |
6661 | ||
6662 | static void | |
6663 | initialize_ordinary_address_classes (void) | |
6664 | { | |
6665 | int i; | |
6666 | ||
6667 | for (i = 0; i < LOC_FINAL_VALUE; ++i) | |
aead7601 | 6668 | symbol_impl[i].aclass = (enum address_class) i; |
f1e6e072 TT |
6669 | } |
6670 | ||
6671 | \f | |
6672 | ||
08be3fe3 DE |
6673 | /* See symtab.h. */ |
6674 | ||
6675 | struct objfile * | |
e19b2d94 | 6676 | symbol::objfile () const |
08be3fe3 | 6677 | { |
e19b2d94 TT |
6678 | gdb_assert (is_objfile_owned ()); |
6679 | return owner.symtab->compunit ()->objfile (); | |
08be3fe3 DE |
6680 | } |
6681 | ||
6682 | /* See symtab.h. */ | |
6683 | ||
6684 | struct gdbarch * | |
bcd6845e | 6685 | symbol::arch () const |
08be3fe3 | 6686 | { |
bcd6845e TT |
6687 | if (!is_objfile_owned ()) |
6688 | return owner.arch; | |
6689 | return owner.symtab->compunit ()->objfile ()->arch (); | |
08be3fe3 DE |
6690 | } |
6691 | ||
6692 | /* See symtab.h. */ | |
6693 | ||
6694 | struct symtab * | |
4206d69e | 6695 | symbol::symtab () const |
08be3fe3 | 6696 | { |
4206d69e TT |
6697 | gdb_assert (is_objfile_owned ()); |
6698 | return owner.symtab; | |
08be3fe3 DE |
6699 | } |
6700 | ||
6701 | /* See symtab.h. */ | |
6702 | ||
6703 | void | |
4206d69e | 6704 | symbol::set_symtab (struct symtab *symtab) |
08be3fe3 | 6705 | { |
4206d69e TT |
6706 | gdb_assert (is_objfile_owned ()); |
6707 | owner.symtab = symtab; | |
08be3fe3 DE |
6708 | } |
6709 | ||
4b610737 TT |
6710 | /* See symtab.h. */ |
6711 | ||
6712 | CORE_ADDR | |
f9b96f67 | 6713 | symbol::get_maybe_copied_address () const |
4b610737 | 6714 | { |
f9b96f67 SM |
6715 | gdb_assert (this->maybe_copied); |
6716 | gdb_assert (this->aclass () == LOC_STATIC); | |
4b610737 | 6717 | |
f9b96f67 | 6718 | const char *linkage_name = this->linkage_name (); |
47ef0ac7 TT |
6719 | bound_minimal_symbol minsym = lookup_minimal_symbol_linkage (linkage_name, |
6720 | false); | |
6721 | if (minsym.minsym != nullptr) | |
6722 | return minsym.value_address (); | |
f9b96f67 | 6723 | return this->m_value.address; |
4b610737 TT |
6724 | } |
6725 | ||
6726 | /* See symtab.h. */ | |
6727 | ||
6728 | CORE_ADDR | |
23e6f781 | 6729 | minimal_symbol::get_maybe_copied_address (objfile *objf) const |
4b610737 | 6730 | { |
23e6f781 | 6731 | gdb_assert (this->maybe_copied (objf)); |
4b610737 TT |
6732 | gdb_assert ((objf->flags & OBJF_MAINLINE) == 0); |
6733 | ||
23e6f781 | 6734 | const char *linkage_name = this->linkage_name (); |
47ef0ac7 TT |
6735 | bound_minimal_symbol found = lookup_minimal_symbol_linkage (linkage_name, |
6736 | true); | |
6737 | if (found.minsym != nullptr) | |
6738 | return found.value_address (); | |
23e6f781 SM |
6739 | return (this->m_value.address |
6740 | + objf->section_offsets[this->section_index ()]); | |
4b610737 TT |
6741 | } |
6742 | ||
e623cf5d TT |
6743 | \f |
6744 | ||
165f8965 AB |
6745 | /* Hold the sub-commands of 'info module'. */ |
6746 | ||
6747 | static struct cmd_list_element *info_module_cmdlist = NULL; | |
6748 | ||
165f8965 AB |
6749 | /* See symtab.h. */ |
6750 | ||
6751 | std::vector<module_symbol_search> | |
6752 | search_module_symbols (const char *module_regexp, const char *regexp, | |
c92d4de1 | 6753 | const char *type_regexp, domain_search_flags kind) |
165f8965 AB |
6754 | { |
6755 | std::vector<module_symbol_search> results; | |
6756 | ||
6757 | /* Search for all modules matching MODULE_REGEXP. */ | |
c92d4de1 | 6758 | global_symbol_searcher spec1 (SEARCH_MODULE_DOMAIN, module_regexp); |
470c0b1c AB |
6759 | spec1.set_exclude_minsyms (true); |
6760 | std::vector<symbol_search> modules = spec1.search (); | |
165f8965 AB |
6761 | |
6762 | /* Now search for all symbols of the required KIND matching the required | |
6763 | regular expressions. We figure out which ones are in which modules | |
6764 | below. */ | |
470c0b1c AB |
6765 | global_symbol_searcher spec2 (kind, regexp); |
6766 | spec2.set_symbol_type_regexp (type_regexp); | |
6767 | spec2.set_exclude_minsyms (true); | |
6768 | std::vector<symbol_search> symbols = spec2.search (); | |
165f8965 AB |
6769 | |
6770 | /* Now iterate over all MODULES, checking to see which items from | |
6771 | SYMBOLS are in each module. */ | |
6772 | for (const symbol_search &p : modules) | |
6773 | { | |
6774 | QUIT; | |
6775 | ||
6776 | /* This is a module. */ | |
6777 | gdb_assert (p.symbol != nullptr); | |
6778 | ||
987012b8 | 6779 | std::string prefix = p.symbol->print_name (); |
165f8965 AB |
6780 | prefix += "::"; |
6781 | ||
6782 | for (const symbol_search &q : symbols) | |
6783 | { | |
6784 | if (q.symbol == nullptr) | |
6785 | continue; | |
6786 | ||
987012b8 | 6787 | if (strncmp (q.symbol->print_name (), prefix.c_str (), |
165f8965 AB |
6788 | prefix.size ()) != 0) |
6789 | continue; | |
6790 | ||
6791 | results.push_back ({p, q}); | |
6792 | } | |
6793 | } | |
6794 | ||
6795 | return results; | |
6796 | } | |
6797 | ||
6798 | /* Implement the core of both 'info module functions' and 'info module | |
6799 | variables'. */ | |
6800 | ||
6801 | static void | |
6802 | info_module_subcommand (bool quiet, const char *module_regexp, | |
6803 | const char *regexp, const char *type_regexp, | |
c92d4de1 | 6804 | domain_search_flags kind) |
165f8965 | 6805 | { |
c92d4de1 TT |
6806 | gdb_assert (kind == SEARCH_FUNCTION_DOMAIN || kind == SEARCH_VAR_DOMAIN); |
6807 | ||
165f8965 AB |
6808 | /* Print a header line. Don't build the header line bit by bit as this |
6809 | prevents internationalisation. */ | |
6810 | if (!quiet) | |
6811 | { | |
6812 | if (module_regexp == nullptr) | |
6813 | { | |
6814 | if (type_regexp == nullptr) | |
6815 | { | |
6816 | if (regexp == nullptr) | |
c92d4de1 | 6817 | gdb_printf ((kind == SEARCH_VAR_DOMAIN |
6cb06a8c TT |
6818 | ? _("All variables in all modules:") |
6819 | : _("All functions in all modules:"))); | |
165f8965 | 6820 | else |
6cb06a8c | 6821 | gdb_printf |
c92d4de1 | 6822 | ((kind == SEARCH_VAR_DOMAIN |
165f8965 AB |
6823 | ? _("All variables matching regular expression" |
6824 | " \"%s\" in all modules:") | |
6825 | : _("All functions matching regular expression" | |
6826 | " \"%s\" in all modules:")), | |
6827 | regexp); | |
6828 | } | |
6829 | else | |
6830 | { | |
6831 | if (regexp == nullptr) | |
6cb06a8c | 6832 | gdb_printf |
c92d4de1 | 6833 | ((kind == SEARCH_VAR_DOMAIN |
165f8965 AB |
6834 | ? _("All variables with type matching regular " |
6835 | "expression \"%s\" in all modules:") | |
6836 | : _("All functions with type matching regular " | |
6837 | "expression \"%s\" in all modules:")), | |
6838 | type_regexp); | |
6839 | else | |
6cb06a8c | 6840 | gdb_printf |
c92d4de1 | 6841 | ((kind == SEARCH_VAR_DOMAIN |
165f8965 AB |
6842 | ? _("All variables matching regular expression " |
6843 | "\"%s\",\n\twith type matching regular " | |
6844 | "expression \"%s\" in all modules:") | |
6845 | : _("All functions matching regular expression " | |
6846 | "\"%s\",\n\twith type matching regular " | |
6847 | "expression \"%s\" in all modules:")), | |
6848 | regexp, type_regexp); | |
6849 | } | |
6850 | } | |
6851 | else | |
6852 | { | |
6853 | if (type_regexp == nullptr) | |
6854 | { | |
6855 | if (regexp == nullptr) | |
6cb06a8c | 6856 | gdb_printf |
c92d4de1 | 6857 | ((kind == SEARCH_VAR_DOMAIN |
165f8965 AB |
6858 | ? _("All variables in all modules matching regular " |
6859 | "expression \"%s\":") | |
6860 | : _("All functions in all modules matching regular " | |
6861 | "expression \"%s\":")), | |
6862 | module_regexp); | |
6863 | else | |
6cb06a8c | 6864 | gdb_printf |
c92d4de1 | 6865 | ((kind == SEARCH_VAR_DOMAIN |
165f8965 AB |
6866 | ? _("All variables matching regular expression " |
6867 | "\"%s\",\n\tin all modules matching regular " | |
6868 | "expression \"%s\":") | |
6869 | : _("All functions matching regular expression " | |
6870 | "\"%s\",\n\tin all modules matching regular " | |
6871 | "expression \"%s\":")), | |
6872 | regexp, module_regexp); | |
6873 | } | |
6874 | else | |
6875 | { | |
6876 | if (regexp == nullptr) | |
6cb06a8c | 6877 | gdb_printf |
c92d4de1 | 6878 | ((kind == SEARCH_VAR_DOMAIN |
165f8965 AB |
6879 | ? _("All variables with type matching regular " |
6880 | "expression \"%s\"\n\tin all modules matching " | |
6881 | "regular expression \"%s\":") | |
6882 | : _("All functions with type matching regular " | |
6883 | "expression \"%s\"\n\tin all modules matching " | |
6884 | "regular expression \"%s\":")), | |
6885 | type_regexp, module_regexp); | |
6886 | else | |
6cb06a8c | 6887 | gdb_printf |
c92d4de1 | 6888 | ((kind == SEARCH_VAR_DOMAIN |
165f8965 AB |
6889 | ? _("All variables matching regular expression " |
6890 | "\"%s\",\n\twith type matching regular expression " | |
6891 | "\"%s\",\n\tin all modules matching regular " | |
6892 | "expression \"%s\":") | |
6893 | : _("All functions matching regular expression " | |
6894 | "\"%s\",\n\twith type matching regular expression " | |
6895 | "\"%s\",\n\tin all modules matching regular " | |
6896 | "expression \"%s\":")), | |
6897 | regexp, type_regexp, module_regexp); | |
6898 | } | |
6899 | } | |
6cb06a8c | 6900 | gdb_printf ("\n"); |
165f8965 AB |
6901 | } |
6902 | ||
6903 | /* Find all symbols of type KIND matching the given regular expressions | |
6904 | along with the symbols for the modules in which those symbols | |
6905 | reside. */ | |
6906 | std::vector<module_symbol_search> module_symbols | |
6907 | = search_module_symbols (module_regexp, regexp, type_regexp, kind); | |
6908 | ||
6909 | std::sort (module_symbols.begin (), module_symbols.end (), | |
6910 | [] (const module_symbol_search &a, const module_symbol_search &b) | |
6911 | { | |
6912 | if (a.first < b.first) | |
6913 | return true; | |
6914 | else if (a.first == b.first) | |
6915 | return a.second < b.second; | |
6916 | else | |
6917 | return false; | |
6918 | }); | |
6919 | ||
6920 | const char *last_filename = ""; | |
6921 | const symbol *last_module_symbol = nullptr; | |
6922 | for (const module_symbol_search &ms : module_symbols) | |
6923 | { | |
6924 | const symbol_search &p = ms.first; | |
6925 | const symbol_search &q = ms.second; | |
6926 | ||
6927 | gdb_assert (q.symbol != nullptr); | |
6928 | ||
6929 | if (last_module_symbol != p.symbol) | |
6930 | { | |
6cb06a8c TT |
6931 | gdb_printf ("\n"); |
6932 | gdb_printf (_("Module \"%s\":\n"), p.symbol->print_name ()); | |
165f8965 AB |
6933 | last_module_symbol = p.symbol; |
6934 | last_filename = ""; | |
6935 | } | |
6936 | ||
d4bf9040 | 6937 | print_symbol_info (q.symbol, q.block, last_filename); |
165f8965 | 6938 | last_filename |
4206d69e | 6939 | = symtab_to_filename_for_display (q.symbol->symtab ()); |
165f8965 AB |
6940 | } |
6941 | } | |
6942 | ||
6943 | /* Hold the option values for the 'info module .....' sub-commands. */ | |
6944 | ||
6945 | struct info_modules_var_func_options | |
6946 | { | |
6947 | bool quiet = false; | |
e0700ba4 SM |
6948 | std::string type_regexp; |
6949 | std::string module_regexp; | |
165f8965 AB |
6950 | }; |
6951 | ||
6952 | /* The options used by 'info module variables' and 'info module functions' | |
6953 | commands. */ | |
6954 | ||
6955 | static const gdb::option::option_def info_modules_var_func_options_defs [] = { | |
6956 | gdb::option::boolean_option_def<info_modules_var_func_options> { | |
6957 | "q", | |
6958 | [] (info_modules_var_func_options *opt) { return &opt->quiet; }, | |
6959 | nullptr, /* show_cmd_cb */ | |
6960 | nullptr /* set_doc */ | |
6961 | }, | |
6962 | ||
6963 | gdb::option::string_option_def<info_modules_var_func_options> { | |
6964 | "t", | |
6965 | [] (info_modules_var_func_options *opt) { return &opt->type_regexp; }, | |
6966 | nullptr, /* show_cmd_cb */ | |
6967 | nullptr /* set_doc */ | |
6968 | }, | |
6969 | ||
6970 | gdb::option::string_option_def<info_modules_var_func_options> { | |
6971 | "m", | |
6972 | [] (info_modules_var_func_options *opt) { return &opt->module_regexp; }, | |
6973 | nullptr, /* show_cmd_cb */ | |
6974 | nullptr /* set_doc */ | |
6975 | } | |
6976 | }; | |
6977 | ||
6978 | /* Return the option group used by the 'info module ...' sub-commands. */ | |
6979 | ||
6980 | static inline gdb::option::option_def_group | |
6981 | make_info_modules_var_func_options_def_group | |
6982 | (info_modules_var_func_options *opts) | |
6983 | { | |
6984 | return {{info_modules_var_func_options_defs}, opts}; | |
6985 | } | |
6986 | ||
6987 | /* Implements the 'info module functions' command. */ | |
6988 | ||
6989 | static void | |
6990 | info_module_functions_command (const char *args, int from_tty) | |
6991 | { | |
6992 | info_modules_var_func_options opts; | |
6993 | auto grp = make_info_modules_var_func_options_def_group (&opts); | |
6994 | gdb::option::process_options | |
6995 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
6996 | if (args != nullptr && *args == '\0') | |
6997 | args = nullptr; | |
6998 | ||
e0700ba4 SM |
6999 | info_module_subcommand |
7000 | (opts.quiet, | |
7001 | opts.module_regexp.empty () ? nullptr : opts.module_regexp.c_str (), args, | |
7002 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
c92d4de1 | 7003 | SEARCH_FUNCTION_DOMAIN); |
165f8965 AB |
7004 | } |
7005 | ||
7006 | /* Implements the 'info module variables' command. */ | |
7007 | ||
7008 | static void | |
7009 | info_module_variables_command (const char *args, int from_tty) | |
7010 | { | |
7011 | info_modules_var_func_options opts; | |
7012 | auto grp = make_info_modules_var_func_options_def_group (&opts); | |
7013 | gdb::option::process_options | |
7014 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
7015 | if (args != nullptr && *args == '\0') | |
7016 | args = nullptr; | |
7017 | ||
e0700ba4 SM |
7018 | info_module_subcommand |
7019 | (opts.quiet, | |
7020 | opts.module_regexp.empty () ? nullptr : opts.module_regexp.c_str (), args, | |
7021 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
c92d4de1 | 7022 | SEARCH_VAR_DOMAIN); |
165f8965 AB |
7023 | } |
7024 | ||
7025 | /* Command completer for 'info module ...' sub-commands. */ | |
7026 | ||
7027 | static void | |
7028 | info_module_var_func_command_completer (struct cmd_list_element *ignore, | |
7029 | completion_tracker &tracker, | |
7030 | const char *text, | |
7031 | const char * /* word */) | |
7032 | { | |
7033 | ||
7034 | const auto group = make_info_modules_var_func_options_def_group (nullptr); | |
7035 | if (gdb::option::complete_options | |
7036 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
7037 | return; | |
7038 | ||
7039 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
7040 | symbol_completer (ignore, tracker, text, word); | |
7041 | } | |
7042 | ||
7043 | \f | |
7044 | ||
6c265988 | 7045 | void _initialize_symtab (); |
c906108c | 7046 | void |
6c265988 | 7047 | _initialize_symtab () |
c906108c | 7048 | { |
60cfcb20 AB |
7049 | cmd_list_element *c; |
7050 | ||
f1e6e072 TT |
7051 | initialize_ordinary_address_classes (); |
7052 | ||
60cfcb20 AB |
7053 | c = add_info ("variables", info_variables_command, |
7054 | info_print_args_help (_("\ | |
12615cba | 7055 | All global and static variable names or those matching REGEXPs.\n\ |
4acfdd20 | 7056 | Usage: info variables [-q] [-n] [-t TYPEREGEXP] [NAMEREGEXP]\n\ |
12615cba | 7057 | Prints the global and static variables.\n"), |
4acfdd20 AB |
7058 | _("global and static variables"), |
7059 | true)); | |
095252be | 7060 | set_cmd_completer_handle_brkchars (c, info_vars_funcs_command_completer); |
c906108c | 7061 | |
60cfcb20 AB |
7062 | c = add_info ("functions", info_functions_command, |
7063 | info_print_args_help (_("\ | |
12615cba | 7064 | All function names or those matching REGEXPs.\n\ |
4acfdd20 | 7065 | Usage: info functions [-q] [-n] [-t TYPEREGEXP] [NAMEREGEXP]\n\ |
12615cba | 7066 | Prints the functions.\n"), |
4acfdd20 AB |
7067 | _("functions"), |
7068 | true)); | |
095252be | 7069 | set_cmd_completer_handle_brkchars (c, info_vars_funcs_command_completer); |
c906108c | 7070 | |
a8eab7c6 AB |
7071 | c = add_info ("types", info_types_command, _("\ |
7072 | All type names, or those matching REGEXP.\n\ | |
7073 | Usage: info types [-q] [REGEXP]\n\ | |
7074 | Print information about all types matching REGEXP, or all types if no\n\ | |
7075 | REGEXP is given. The optional flag -q disables printing of headers.")); | |
7076 | set_cmd_completer_handle_brkchars (c, info_types_command_completer); | |
c906108c | 7077 | |
0e350a05 AB |
7078 | const auto info_sources_opts |
7079 | = make_info_sources_options_def_group (nullptr); | |
28cd9371 PW |
7080 | |
7081 | static std::string info_sources_help | |
7082 | = gdb::option::build_help (_("\ | |
7083 | All source files in the program or those matching REGEXP.\n\ | |
7084 | Usage: info sources [OPTION]... [REGEXP]\n\ | |
7085 | By default, REGEXP is used to match anywhere in the filename.\n\ | |
7086 | \n\ | |
7087 | Options:\n\ | |
7088 | %OPTIONS%"), | |
7089 | info_sources_opts); | |
7090 | ||
7091 | c = add_info ("sources", info_sources_command, info_sources_help.c_str ()); | |
7092 | set_cmd_completer_handle_brkchars (c, info_sources_command_completer); | |
c906108c | 7093 | |
59c35742 AB |
7094 | c = add_info ("modules", info_modules_command, |
7095 | _("All module names, or those matching REGEXP.")); | |
7096 | set_cmd_completer_handle_brkchars (c, info_types_command_completer); | |
7097 | ||
03d83cd5 RB |
7098 | add_info ("main", info_main_command, |
7099 | _("Get main symbol to identify entry point into program.")); | |
7100 | ||
0743fc83 | 7101 | add_basic_prefix_cmd ("module", class_info, _("\ |
165f8965 | 7102 | Print information about modules."), |
2f822da5 | 7103 | &info_module_cmdlist, 0, &infolist); |
165f8965 AB |
7104 | |
7105 | c = add_cmd ("functions", class_info, info_module_functions_command, _("\ | |
7106 | Display functions arranged by modules.\n\ | |
7107 | Usage: info module functions [-q] [-m MODREGEXP] [-t TYPEREGEXP] [REGEXP]\n\ | |
7108 | Print a summary of all functions within each Fortran module, grouped by\n\ | |
7109 | module and file. For each function the line on which the function is\n\ | |
7110 | defined is given along with the type signature and name of the function.\n\ | |
7111 | \n\ | |
7112 | If REGEXP is provided then only functions whose name matches REGEXP are\n\ | |
7113 | listed. If MODREGEXP is provided then only functions in modules matching\n\ | |
7114 | MODREGEXP are listed. If TYPEREGEXP is given then only functions whose\n\ | |
7115 | type signature matches TYPEREGEXP are listed.\n\ | |
7116 | \n\ | |
7117 | The -q flag suppresses printing some header information."), | |
7118 | &info_module_cmdlist); | |
7119 | set_cmd_completer_handle_brkchars | |
7120 | (c, info_module_var_func_command_completer); | |
7121 | ||
7122 | c = add_cmd ("variables", class_info, info_module_variables_command, _("\ | |
7123 | Display variables arranged by modules.\n\ | |
7124 | Usage: info module variables [-q] [-m MODREGEXP] [-t TYPEREGEXP] [REGEXP]\n\ | |
7125 | Print a summary of all variables within each Fortran module, grouped by\n\ | |
7126 | module and file. For each variable the line on which the variable is\n\ | |
7127 | defined is given along with the type and name of the variable.\n\ | |
7128 | \n\ | |
7129 | If REGEXP is provided then only variables whose name matches REGEXP are\n\ | |
7130 | listed. If MODREGEXP is provided then only variables in modules matching\n\ | |
7131 | MODREGEXP are listed. If TYPEREGEXP is given then only variables whose\n\ | |
7132 | type matches TYPEREGEXP are listed.\n\ | |
7133 | \n\ | |
7134 | The -q flag suppresses printing some header information."), | |
7135 | &info_module_cmdlist); | |
7136 | set_cmd_completer_handle_brkchars | |
7137 | (c, info_module_var_func_command_completer); | |
7138 | ||
c906108c | 7139 | add_com ("rbreak", class_breakpoint, rbreak_command, |
1bedd215 | 7140 | _("Set a breakpoint for all functions matching REGEXP.")); |
c906108c | 7141 | |
717d2f5a | 7142 | add_setshow_enum_cmd ("multiple-symbols", no_class, |
dda83cd7 SM |
7143 | multiple_symbols_modes, &multiple_symbols_mode, |
7144 | _("\ | |
590042fc | 7145 | Set how the debugger handles ambiguities in expressions."), _("\ |
717d2f5a JB |
7146 | Show how the debugger handles ambiguities in expressions."), _("\ |
7147 | Valid values are \"ask\", \"all\", \"cancel\", and the default is \"all\"."), | |
dda83cd7 | 7148 | NULL, NULL, &setlist, &showlist); |
717d2f5a | 7149 | |
c011a4f4 DE |
7150 | add_setshow_boolean_cmd ("basenames-may-differ", class_obscure, |
7151 | &basenames_may_differ, _("\ | |
7152 | Set whether a source file may have multiple base names."), _("\ | |
7153 | Show whether a source file may have multiple base names."), _("\ | |
7154 | (A \"base name\" is the name of a file with the directory part removed.\n\ | |
7155 | Example: The base name of \"/home/user/hello.c\" is \"hello.c\".)\n\ | |
7156 | If set, GDB will canonicalize file names (e.g., expand symlinks)\n\ | |
7157 | before comparing them. Canonicalization is an expensive operation,\n\ | |
7158 | but it allows the same file be known by more than one base name.\n\ | |
7159 | If not set (the default), all source files are assumed to have just\n\ | |
7160 | one base name, and gdb will do file name comparisons more efficiently."), | |
7161 | NULL, NULL, | |
7162 | &setlist, &showlist); | |
7163 | ||
db0fec5c DE |
7164 | add_setshow_zuinteger_cmd ("symtab-create", no_class, &symtab_create_debug, |
7165 | _("Set debugging of symbol table creation."), | |
7166 | _("Show debugging of symbol table creation."), _("\ | |
7167 | When enabled (non-zero), debugging messages are printed when building\n\ | |
7168 | symbol tables. A value of 1 (one) normally provides enough information.\n\ | |
7169 | A value greater than 1 provides more verbose information."), | |
7170 | NULL, | |
7171 | NULL, | |
7172 | &setdebuglist, &showdebuglist); | |
45cfd468 | 7173 | |
cc485e62 DE |
7174 | add_setshow_zuinteger_cmd ("symbol-lookup", no_class, &symbol_lookup_debug, |
7175 | _("\ | |
7176 | Set debugging of symbol lookup."), _("\ | |
7177 | Show debugging of symbol lookup."), _("\ | |
7178 | When enabled (non-zero), symbol lookups are logged."), | |
7179 | NULL, NULL, | |
7180 | &setdebuglist, &showdebuglist); | |
7181 | ||
f57d2163 DE |
7182 | add_setshow_zuinteger_cmd ("symbol-cache-size", no_class, |
7183 | &new_symbol_cache_size, | |
7184 | _("Set the size of the symbol cache."), | |
7185 | _("Show the size of the symbol cache."), _("\ | |
7186 | The size of the symbol cache.\n\ | |
7187 | If zero then the symbol cache is disabled."), | |
7188 | set_symbol_cache_size_handler, NULL, | |
7189 | &maintenance_set_cmdlist, | |
7190 | &maintenance_show_cmdlist); | |
7191 | ||
6109f7a3 LS |
7192 | add_setshow_boolean_cmd ("ignore-prologue-end-flag", no_class, |
7193 | &ignore_prologue_end_flag, | |
7194 | _("Set if the PROLOGUE-END flag is ignored."), | |
7195 | _("Show if the PROLOGUE-END flag is ignored."), | |
7196 | _("\ | |
7197 | The PROLOGUE-END flag from the line-table entries is used to place \ | |
a383ee40 | 7198 | breakpoints past the prologue of functions. Disabling its use forces \ |
6109f7a3 LS |
7199 | the use of prologue scanners."), |
7200 | nullptr, nullptr, | |
7201 | &maintenance_set_cmdlist, | |
7202 | &maintenance_show_cmdlist); | |
7203 | ||
7204 | ||
f57d2163 DE |
7205 | add_cmd ("symbol-cache", class_maintenance, maintenance_print_symbol_cache, |
7206 | _("Dump the symbol cache for each program space."), | |
7207 | &maintenanceprintlist); | |
7208 | ||
7209 | add_cmd ("symbol-cache-statistics", class_maintenance, | |
7210 | maintenance_print_symbol_cache_statistics, | |
7211 | _("Print symbol cache statistics for each program space."), | |
7212 | &maintenanceprintlist); | |
7213 | ||
5e84b7ee SM |
7214 | cmd_list_element *maintenance_flush_symbol_cache_cmd |
7215 | = add_cmd ("symbol-cache", class_maintenance, | |
7216 | maintenance_flush_symbol_cache, | |
7217 | _("Flush the symbol cache for each program space."), | |
7218 | &maintenanceflushlist); | |
7219 | c = add_alias_cmd ("flush-symbol-cache", maintenance_flush_symbol_cache_cmd, | |
50a5f187 AB |
7220 | class_maintenance, 0, &maintenancelist); |
7221 | deprecate_cmd (c, "maintenancelist flush symbol-cache"); | |
f57d2163 | 7222 | |
c90e7d63 | 7223 | gdb::observers::new_objfile.attach (symtab_new_objfile_observer, "symtab"); |
74daa597 SM |
7224 | gdb::observers::all_objfiles_removed.attach (symtab_all_objfiles_removed, |
7225 | "symtab"); | |
c90e7d63 | 7226 | gdb::observers::free_objfile.attach (symtab_free_objfile_observer, "symtab"); |
c906108c | 7227 | } |