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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 PMR |
87 | const struct block *block, |
88 | const domain_enum domain, | |
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 PMR |
95 | const struct block *block, |
96 | const domain_enum domain, | |
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, | |
fe2a438d | 102 | const char *name, const domain_enum domain); |
c906108c | 103 | |
a49d37f3 SM |
104 | static void set_main_name (program_space *pspace, const char *name, |
105 | language lang); | |
a0a031bc | 106 | |
32ac0d11 TT |
107 | /* Type of the data stored on the program space. */ |
108 | ||
109 | struct main_info | |
110 | { | |
111 | /* Name of "main". */ | |
112 | ||
25eb2931 | 113 | std::string name_of_main; |
32ac0d11 TT |
114 | |
115 | /* Language of "main". */ | |
116 | ||
a32ad8c5 | 117 | enum language language_of_main = language_unknown; |
32ac0d11 TT |
118 | }; |
119 | ||
a32ad8c5 TT |
120 | /* Program space key for finding name and language of "main". */ |
121 | ||
08b8a139 | 122 | static const registry<program_space>::key<main_info> main_progspace_key; |
a32ad8c5 | 123 | |
f57d2163 DE |
124 | /* The default symbol cache size. |
125 | There is no extra cpu cost for large N (except when flushing the cache, | |
126 | which is rare). The value here is just a first attempt. A better default | |
127 | value may be higher or lower. A prime number can make up for a bad hash | |
128 | computation, so that's why the number is what it is. */ | |
129 | #define DEFAULT_SYMBOL_CACHE_SIZE 1021 | |
130 | ||
131 | /* The maximum symbol cache size. | |
132 | There's no method to the decision of what value to use here, other than | |
133 | there's no point in allowing a user typo to make gdb consume all memory. */ | |
134 | #define MAX_SYMBOL_CACHE_SIZE (1024*1024) | |
135 | ||
136 | /* symbol_cache_lookup returns this if a previous lookup failed to find the | |
137 | symbol in any objfile. */ | |
d12307c1 PMR |
138 | #define SYMBOL_LOOKUP_FAILED \ |
139 | ((struct block_symbol) {(struct symbol *) 1, NULL}) | |
140 | #define SYMBOL_LOOKUP_FAILED_P(SIB) (SIB.symbol == (struct symbol *) 1) | |
f57d2163 DE |
141 | |
142 | /* Recording lookups that don't find the symbol is just as important, if not | |
143 | more so, than recording found symbols. */ | |
144 | ||
145 | enum symbol_cache_slot_state | |
146 | { | |
147 | SYMBOL_SLOT_UNUSED, | |
148 | SYMBOL_SLOT_NOT_FOUND, | |
149 | SYMBOL_SLOT_FOUND | |
150 | }; | |
151 | ||
52059ffd TT |
152 | struct symbol_cache_slot |
153 | { | |
154 | enum symbol_cache_slot_state state; | |
155 | ||
156 | /* The objfile that was current when the symbol was looked up. | |
157 | This is only needed for global blocks, but for simplicity's sake | |
158 | we allocate the space for both. If data shows the extra space used | |
159 | for static blocks is a problem, we can split things up then. | |
160 | ||
161 | Global blocks need cache lookup to include the objfile context because | |
162 | we need to account for gdbarch_iterate_over_objfiles_in_search_order | |
163 | which can traverse objfiles in, effectively, any order, depending on | |
164 | the current objfile, thus affecting which symbol is found. Normally, | |
165 | only the current objfile is searched first, and then the rest are | |
166 | searched in recorded order; but putting cache lookup inside | |
167 | gdbarch_iterate_over_objfiles_in_search_order would be awkward. | |
168 | Instead we just make the current objfile part of the context of | |
169 | cache lookup. This means we can record the same symbol multiple times, | |
170 | each with a different "current objfile" that was in effect when the | |
171 | lookup was saved in the cache, but cache space is pretty cheap. */ | |
172 | const struct objfile *objfile_context; | |
173 | ||
174 | union | |
175 | { | |
d12307c1 | 176 | struct block_symbol found; |
52059ffd TT |
177 | struct |
178 | { | |
179 | char *name; | |
180 | domain_enum domain; | |
181 | } not_found; | |
182 | } value; | |
183 | }; | |
184 | ||
82f910ea PW |
185 | /* Clear out SLOT. */ |
186 | ||
187 | static void | |
188 | symbol_cache_clear_slot (struct symbol_cache_slot *slot) | |
189 | { | |
190 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
191 | xfree (slot->value.not_found.name); | |
192 | slot->state = SYMBOL_SLOT_UNUSED; | |
193 | } | |
194 | ||
f57d2163 DE |
195 | /* Symbols don't specify global vs static block. |
196 | So keep them in separate caches. */ | |
197 | ||
198 | struct block_symbol_cache | |
199 | { | |
200 | unsigned int hits; | |
201 | unsigned int misses; | |
202 | unsigned int collisions; | |
203 | ||
204 | /* SYMBOLS is a variable length array of this size. | |
205 | One can imagine that in general one cache (global/static) should be a | |
206 | fraction of the size of the other, but there's no data at the moment | |
207 | on which to decide. */ | |
208 | unsigned int size; | |
209 | ||
52059ffd | 210 | struct symbol_cache_slot symbols[1]; |
f57d2163 DE |
211 | }; |
212 | ||
82f910ea PW |
213 | /* Clear all slots of BSC and free BSC. */ |
214 | ||
215 | static void | |
216 | destroy_block_symbol_cache (struct block_symbol_cache *bsc) | |
217 | { | |
218 | if (bsc != nullptr) | |
219 | { | |
220 | for (unsigned int i = 0; i < bsc->size; i++) | |
221 | symbol_cache_clear_slot (&bsc->symbols[i]); | |
222 | xfree (bsc); | |
223 | } | |
224 | } | |
225 | ||
f57d2163 DE |
226 | /* The symbol cache. |
227 | ||
228 | Searching for symbols in the static and global blocks over multiple objfiles | |
229 | again and again can be slow, as can searching very big objfiles. This is a | |
230 | simple cache to improve symbol lookup performance, which is critical to | |
231 | overall gdb performance. | |
232 | ||
233 | Symbols are hashed on the name, its domain, and block. | |
234 | They are also hashed on their objfile for objfile-specific lookups. */ | |
235 | ||
236 | struct symbol_cache | |
237 | { | |
3017b94d TT |
238 | symbol_cache () = default; |
239 | ||
240 | ~symbol_cache () | |
241 | { | |
82f910ea PW |
242 | destroy_block_symbol_cache (global_symbols); |
243 | destroy_block_symbol_cache (static_symbols); | |
3017b94d TT |
244 | } |
245 | ||
246 | struct block_symbol_cache *global_symbols = nullptr; | |
247 | struct block_symbol_cache *static_symbols = nullptr; | |
f57d2163 DE |
248 | }; |
249 | ||
3017b94d TT |
250 | /* Program space key for finding its symbol cache. */ |
251 | ||
08b8a139 | 252 | static const registry<program_space>::key<symbol_cache> symbol_cache_key; |
3017b94d | 253 | |
45cfd468 | 254 | /* When non-zero, print debugging messages related to symtab creation. */ |
db0fec5c | 255 | unsigned int symtab_create_debug = 0; |
45cfd468 | 256 | |
cc485e62 DE |
257 | /* When non-zero, print debugging messages related to symbol lookup. */ |
258 | unsigned int symbol_lookup_debug = 0; | |
259 | ||
f57d2163 DE |
260 | /* The size of the cache is staged here. */ |
261 | static unsigned int new_symbol_cache_size = DEFAULT_SYMBOL_CACHE_SIZE; | |
262 | ||
263 | /* The current value of the symbol cache size. | |
264 | This is saved so that if the user enters a value too big we can restore | |
265 | the original value from here. */ | |
266 | static unsigned int symbol_cache_size = DEFAULT_SYMBOL_CACHE_SIZE; | |
267 | ||
491144b5 | 268 | /* True if a file may be known by two different basenames. |
c011a4f4 DE |
269 | This is the uncommon case, and significantly slows down gdb. |
270 | Default set to "off" to not slow down the common case. */ | |
491144b5 | 271 | bool basenames_may_differ = false; |
c011a4f4 | 272 | |
717d2f5a JB |
273 | /* Allow the user to configure the debugger behavior with respect |
274 | to multiple-choice menus when more than one symbol matches during | |
275 | a symbol lookup. */ | |
276 | ||
7fc830e2 MK |
277 | const char multiple_symbols_ask[] = "ask"; |
278 | const char multiple_symbols_all[] = "all"; | |
279 | const char multiple_symbols_cancel[] = "cancel"; | |
40478521 | 280 | static const char *const multiple_symbols_modes[] = |
717d2f5a JB |
281 | { |
282 | multiple_symbols_ask, | |
283 | multiple_symbols_all, | |
284 | multiple_symbols_cancel, | |
285 | NULL | |
286 | }; | |
287 | static const char *multiple_symbols_mode = multiple_symbols_all; | |
288 | ||
6109f7a3 LS |
289 | /* When TRUE, ignore the prologue-end flag in linetable_entry when searching |
290 | for the SAL past a function prologue. */ | |
291 | static bool ignore_prologue_end_flag = false; | |
292 | ||
717d2f5a JB |
293 | /* Read-only accessor to AUTO_SELECT_MODE. */ |
294 | ||
295 | const char * | |
296 | multiple_symbols_select_mode (void) | |
297 | { | |
298 | return multiple_symbols_mode; | |
299 | } | |
300 | ||
20c681d1 DE |
301 | /* Return the name of a domain_enum. */ |
302 | ||
303 | const char * | |
304 | domain_name (domain_enum e) | |
305 | { | |
306 | switch (e) | |
307 | { | |
6771fc6f TT |
308 | #define DOMAIN(X) \ |
309 | case X ## _DOMAIN: return #X "_DOMAIN"; | |
310 | #include "sym-domains.def" | |
311 | #undef DOMAIN | |
20c681d1 DE |
312 | default: gdb_assert_not_reached ("bad domain_enum"); |
313 | } | |
314 | } | |
315 | ||
43f3e411 | 316 | /* See symtab.h. */ |
db0fec5c | 317 | |
25f31e18 TT |
318 | std::string |
319 | domain_name (domain_search_flags flags) | |
320 | { | |
321 | static constexpr domain_search_flags::string_mapping mapping[] = { | |
322 | #define DOMAIN(X) \ | |
323 | MAP_ENUM_FLAG (SEARCH_ ## X ## _DOMAIN), | |
324 | #include "sym-domains.def" | |
325 | #undef DOMAIN | |
326 | }; | |
327 | ||
328 | return flags.to_string (mapping); | |
329 | } | |
330 | ||
331 | /* See symtab.h. */ | |
332 | ||
88ff5355 TT |
333 | domain_search_flags |
334 | from_scripting_domain (int val) | |
335 | { | |
336 | if ((val & SCRIPTING_SEARCH_FLAG) == 0) | |
337 | { | |
338 | /* VAL should be one of the domain constants. Verify this and | |
339 | convert it to a search constant. */ | |
340 | switch (val) | |
341 | { | |
342 | #define DOMAIN(X) \ | |
343 | case X ## _DOMAIN: break; | |
344 | #include "sym-domains.def" | |
345 | #undef DOMAIN | |
346 | default: | |
347 | error (_("unrecognized domain constant")); | |
348 | } | |
349 | domain_search_flags result = to_search_flags ((domain_enum) val); | |
350 | if (val == VAR_DOMAIN) | |
351 | { | |
352 | /* This matches the historical practice. */ | |
353 | result |= SEARCH_TYPE_DOMAIN | SEARCH_FUNCTION_DOMAIN; | |
354 | } | |
355 | return result; | |
356 | } | |
357 | else | |
358 | { | |
359 | /* VAL is several search constants or'd together. Verify | |
360 | this. */ | |
361 | val &= ~SCRIPTING_SEARCH_FLAG; | |
362 | int check = val; | |
363 | #define DOMAIN(X) \ | |
364 | check &= ~ (int) SEARCH_ ## X ## _DOMAIN; | |
365 | #include "sym-domains.def" | |
366 | #undef DOMAIN | |
367 | if (check != 0) | |
368 | error (_("unrecognized domain constant")); | |
369 | return (domain_search_flag) val; | |
370 | } | |
371 | } | |
372 | ||
373 | /* See symtab.h. */ | |
374 | ||
1acc9dca TT |
375 | CORE_ADDR |
376 | linetable_entry::pc (const struct objfile *objfile) const | |
377 | { | |
48e0f38c | 378 | return CORE_ADDR (m_pc) + objfile->text_section_offset (); |
1acc9dca TT |
379 | } |
380 | ||
381 | /* See symtab.h. */ | |
382 | ||
b625c770 SM |
383 | call_site * |
384 | compunit_symtab::find_call_site (CORE_ADDR pc) const | |
385 | { | |
386 | if (m_call_site_htab == nullptr) | |
387 | return nullptr; | |
388 | ||
d401e7bf | 389 | CORE_ADDR delta = this->objfile ()->text_section_offset (); |
1e73d09f | 390 | unrelocated_addr unrelocated_pc = (unrelocated_addr) (pc - delta); |
b0b8879e SM |
391 | |
392 | struct call_site call_site_local (unrelocated_pc, nullptr, nullptr); | |
0dd8295d TV |
393 | void **slot |
394 | = htab_find_slot (m_call_site_htab, &call_site_local, NO_INSERT); | |
9df25c34 TT |
395 | if (slot != nullptr) |
396 | return (call_site *) *slot; | |
397 | ||
398 | /* See if the arch knows another PC we should try. On some | |
399 | platforms, GCC emits a DWARF call site that is offset from the | |
400 | actual return location. */ | |
401 | struct gdbarch *arch = objfile ()->arch (); | |
402 | CORE_ADDR new_pc = gdbarch_update_call_site_pc (arch, pc); | |
403 | if (pc == new_pc) | |
404 | return nullptr; | |
405 | ||
1e73d09f TT |
406 | unrelocated_pc = (unrelocated_addr) (new_pc - delta); |
407 | call_site new_call_site_local (unrelocated_pc, nullptr, nullptr); | |
9df25c34 | 408 | slot = htab_find_slot (m_call_site_htab, &new_call_site_local, NO_INSERT); |
b625c770 SM |
409 | if (slot == nullptr) |
410 | return nullptr; | |
411 | ||
412 | return (call_site *) *slot; | |
413 | } | |
414 | ||
415 | /* See symtab.h. */ | |
416 | ||
417 | void | |
418 | compunit_symtab::set_call_site_htab (htab_t call_site_htab) | |
419 | { | |
420 | gdb_assert (m_call_site_htab == nullptr); | |
421 | m_call_site_htab = call_site_htab; | |
422 | } | |
423 | ||
424 | /* See symtab.h. */ | |
425 | ||
36664835 SM |
426 | void |
427 | compunit_symtab::set_primary_filetab (symtab *primary_filetab) | |
428 | { | |
429 | symtab *prev_filetab = nullptr; | |
430 | ||
431 | /* Move PRIMARY_FILETAB to the head of the filetab list. */ | |
102cc235 | 432 | for (symtab *filetab : this->filetabs ()) |
36664835 SM |
433 | { |
434 | if (filetab == primary_filetab) | |
435 | { | |
436 | if (prev_filetab != nullptr) | |
437 | { | |
438 | prev_filetab->next = primary_filetab->next; | |
102cc235 SM |
439 | primary_filetab->next = m_filetabs; |
440 | m_filetabs = primary_filetab; | |
36664835 SM |
441 | } |
442 | ||
443 | break; | |
444 | } | |
445 | ||
446 | prev_filetab = filetab; | |
447 | } | |
448 | ||
102cc235 | 449 | gdb_assert (primary_filetab == m_filetabs); |
36664835 SM |
450 | } |
451 | ||
452 | /* See symtab.h. */ | |
453 | ||
43f3e411 | 454 | struct symtab * |
0b17a4f7 | 455 | compunit_symtab::primary_filetab () const |
db0fec5c | 456 | { |
102cc235 | 457 | gdb_assert (m_filetabs != nullptr); |
db0fec5c | 458 | |
43f3e411 | 459 | /* The primary file symtab is the first one in the list. */ |
102cc235 | 460 | return m_filetabs; |
43f3e411 DE |
461 | } |
462 | ||
463 | /* See symtab.h. */ | |
464 | ||
465 | enum language | |
425d5e76 | 466 | compunit_symtab::language () const |
43f3e411 | 467 | { |
425d5e76 | 468 | struct symtab *symtab = primary_filetab (); |
43f3e411 | 469 | |
425d5e76 TT |
470 | /* The language of the compunit symtab is the language of its |
471 | primary source file. */ | |
1ee2e9f9 | 472 | return symtab->language (); |
db0fec5c DE |
473 | } |
474 | ||
4aeddc50 SM |
475 | /* The relocated address of the minimal symbol, using the section |
476 | offsets from OBJFILE. */ | |
477 | ||
478 | CORE_ADDR | |
479 | minimal_symbol::value_address (objfile *objfile) const | |
480 | { | |
62669649 | 481 | if (this->maybe_copied (objfile)) |
23e6f781 | 482 | return this->get_maybe_copied_address (objfile); |
4aeddc50 | 483 | else |
93d50cd8 | 484 | return (CORE_ADDR (this->unrelocated_address ()) |
4aeddc50 SM |
485 | + objfile->section_offsets[this->section_index ()]); |
486 | } | |
487 | ||
1ed9f74e PW |
488 | /* See symtab.h. */ |
489 | ||
490 | bool | |
491 | minimal_symbol::data_p () const | |
492 | { | |
60f62e2b SM |
493 | return m_type == mst_data |
494 | || m_type == mst_bss | |
495 | || m_type == mst_abs | |
496 | || m_type == mst_file_data | |
497 | || m_type == mst_file_bss; | |
1ed9f74e PW |
498 | } |
499 | ||
500 | /* See symtab.h. */ | |
501 | ||
502 | bool | |
503 | minimal_symbol::text_p () const | |
504 | { | |
60f62e2b SM |
505 | return m_type == mst_text |
506 | || m_type == mst_text_gnu_ifunc | |
507 | || m_type == mst_data_gnu_ifunc | |
508 | || m_type == mst_slot_got_plt | |
509 | || m_type == mst_solib_trampoline | |
510 | || m_type == mst_file_text; | |
1ed9f74e PW |
511 | } |
512 | ||
62669649 KB |
513 | /* See symtab.h. */ |
514 | ||
515 | bool | |
516 | minimal_symbol::maybe_copied (objfile *objfile) const | |
517 | { | |
518 | return (objfile->object_format_has_copy_relocs | |
519 | && (objfile->flags & OBJF_MAINLINE) == 0 | |
520 | && (m_type == mst_data || m_type == mst_bss)); | |
521 | } | |
522 | ||
4aac40c8 TT |
523 | /* See whether FILENAME matches SEARCH_NAME using the rule that we |
524 | advertise to the user. (The manual's description of linespecs | |
af529f8f JK |
525 | describes what we advertise). Returns true if they match, false |
526 | otherwise. */ | |
4aac40c8 | 527 | |
ececd218 | 528 | bool |
b57a636e | 529 | compare_filenames_for_search (const char *filename, const char *search_name) |
4aac40c8 TT |
530 | { |
531 | int len = strlen (filename); | |
b57a636e | 532 | size_t search_len = strlen (search_name); |
4aac40c8 TT |
533 | |
534 | if (len < search_len) | |
ececd218 | 535 | return false; |
4aac40c8 TT |
536 | |
537 | /* The tail of FILENAME must match. */ | |
538 | if (FILENAME_CMP (filename + len - search_len, search_name) != 0) | |
ececd218 | 539 | return false; |
4aac40c8 TT |
540 | |
541 | /* Either the names must completely match, or the character | |
542 | preceding the trailing SEARCH_NAME segment of FILENAME must be a | |
d84fca2c JK |
543 | directory separator. |
544 | ||
af529f8f JK |
545 | The check !IS_ABSOLUTE_PATH ensures SEARCH_NAME "/dir/file.c" |
546 | cannot match FILENAME "/path//dir/file.c" - as user has requested | |
547 | absolute path. The sama applies for "c:\file.c" possibly | |
548 | incorrectly hypothetically matching "d:\dir\c:\file.c". | |
549 | ||
d84fca2c JK |
550 | The HAS_DRIVE_SPEC purpose is to make FILENAME "c:file.c" |
551 | compatible with SEARCH_NAME "file.c". In such case a compiler had | |
552 | to put the "c:file.c" name into debug info. Such compatibility | |
553 | works only on GDB built for DOS host. */ | |
4aac40c8 | 554 | return (len == search_len |
af529f8f JK |
555 | || (!IS_ABSOLUTE_PATH (search_name) |
556 | && IS_DIR_SEPARATOR (filename[len - search_len - 1])) | |
4aac40c8 TT |
557 | || (HAS_DRIVE_SPEC (filename) |
558 | && STRIP_DRIVE_SPEC (filename) == &filename[len - search_len])); | |
559 | } | |
560 | ||
cce0e923 DE |
561 | /* Same as compare_filenames_for_search, but for glob-style patterns. |
562 | Heads up on the order of the arguments. They match the order of | |
563 | compare_filenames_for_search, but it's the opposite of the order of | |
564 | arguments to gdb_filename_fnmatch. */ | |
565 | ||
ececd218 | 566 | bool |
cce0e923 DE |
567 | compare_glob_filenames_for_search (const char *filename, |
568 | const char *search_name) | |
569 | { | |
570 | /* We rely on the property of glob-style patterns with FNM_FILE_NAME that | |
571 | all /s have to be explicitly specified. */ | |
572 | int file_path_elements = count_path_elements (filename); | |
573 | int search_path_elements = count_path_elements (search_name); | |
574 | ||
575 | if (search_path_elements > file_path_elements) | |
ececd218 | 576 | return false; |
cce0e923 DE |
577 | |
578 | if (IS_ABSOLUTE_PATH (search_name)) | |
579 | { | |
580 | return (search_path_elements == file_path_elements | |
581 | && gdb_filename_fnmatch (search_name, filename, | |
582 | FNM_FILE_NAME | FNM_NOESCAPE) == 0); | |
583 | } | |
584 | ||
585 | { | |
586 | const char *file_to_compare | |
587 | = strip_leading_path_elements (filename, | |
588 | file_path_elements - search_path_elements); | |
589 | ||
590 | return gdb_filename_fnmatch (search_name, file_to_compare, | |
591 | FNM_FILE_NAME | FNM_NOESCAPE) == 0; | |
592 | } | |
593 | } | |
594 | ||
f8eba3c6 TT |
595 | /* Check for a symtab of a specific name by searching some symtabs. |
596 | This is a helper function for callbacks of iterate_over_symtabs. | |
c906108c | 597 | |
b2d23133 DE |
598 | If NAME is not absolute, then REAL_PATH is NULL |
599 | If NAME is absolute, then REAL_PATH is the gdb_realpath form of NAME. | |
600 | ||
14bc53a8 PA |
601 | The return value, NAME, REAL_PATH and CALLBACK are identical to the |
602 | `map_symtabs_matching_filename' method of quick_symbol_functions. | |
f8eba3c6 | 603 | |
43f3e411 DE |
604 | FIRST and AFTER_LAST indicate the range of compunit symtabs to search. |
605 | Each symtab within the specified compunit symtab is also searched. | |
606 | AFTER_LAST is one past the last compunit symtab to search; NULL means to | |
f8eba3c6 TT |
607 | search until the end of the list. */ |
608 | ||
14bc53a8 | 609 | bool |
f8eba3c6 | 610 | iterate_over_some_symtabs (const char *name, |
f8eba3c6 | 611 | const char *real_path, |
43f3e411 | 612 | struct compunit_symtab *first, |
14bc53a8 PA |
613 | struct compunit_symtab *after_last, |
614 | gdb::function_view<bool (symtab *)> callback) | |
c906108c | 615 | { |
43f3e411 | 616 | struct compunit_symtab *cust; |
c011a4f4 | 617 | const char* base_name = lbasename (name); |
1f84b619 | 618 | |
43f3e411 | 619 | for (cust = first; cust != NULL && cust != after_last; cust = cust->next) |
f079a2e5 | 620 | { |
7023b8d8 TV |
621 | /* Skip included compunits. */ |
622 | if (cust->user != nullptr) | |
623 | continue; | |
624 | ||
102cc235 | 625 | for (symtab *s : cust->filetabs ()) |
a94e8645 | 626 | { |
43f3e411 DE |
627 | if (compare_filenames_for_search (s->filename, name)) |
628 | { | |
14bc53a8 PA |
629 | if (callback (s)) |
630 | return true; | |
43f3e411 DE |
631 | continue; |
632 | } | |
a94e8645 | 633 | |
43f3e411 DE |
634 | /* Before we invoke realpath, which can get expensive when many |
635 | files are involved, do a quick comparison of the basenames. */ | |
636 | if (! basenames_may_differ | |
637 | && FILENAME_CMP (base_name, lbasename (s->filename)) != 0) | |
638 | continue; | |
a94e8645 | 639 | |
43f3e411 | 640 | if (compare_filenames_for_search (symtab_to_fullname (s), name)) |
a94e8645 | 641 | { |
14bc53a8 PA |
642 | if (callback (s)) |
643 | return true; | |
a94e8645 DE |
644 | continue; |
645 | } | |
43f3e411 DE |
646 | |
647 | /* If the user gave us an absolute path, try to find the file in | |
648 | this symtab and use its absolute path. */ | |
649 | if (real_path != NULL) | |
650 | { | |
651 | const char *fullname = symtab_to_fullname (s); | |
652 | ||
653 | gdb_assert (IS_ABSOLUTE_PATH (real_path)); | |
654 | gdb_assert (IS_ABSOLUTE_PATH (name)); | |
7e785608 TV |
655 | gdb::unique_xmalloc_ptr<char> fullname_real_path |
656 | = gdb_realpath (fullname); | |
657 | fullname = fullname_real_path.get (); | |
43f3e411 DE |
658 | if (FILENAME_CMP (real_path, fullname) == 0) |
659 | { | |
14bc53a8 PA |
660 | if (callback (s)) |
661 | return true; | |
43f3e411 DE |
662 | continue; |
663 | } | |
664 | } | |
a94e8645 | 665 | } |
f8eba3c6 | 666 | } |
58d370e0 | 667 | |
14bc53a8 | 668 | return false; |
f8eba3c6 TT |
669 | } |
670 | ||
671 | /* Check for a symtab of a specific name; first in symtabs, then in | |
672 | psymtabs. *If* there is no '/' in the name, a match after a '/' | |
673 | in the symtab filename will also work. | |
674 | ||
14bc53a8 PA |
675 | Calls CALLBACK with each symtab that is found. If CALLBACK returns |
676 | true, the search stops. */ | |
f8eba3c6 TT |
677 | |
678 | void | |
679 | iterate_over_symtabs (const char *name, | |
14bc53a8 | 680 | gdb::function_view<bool (symtab *)> callback) |
f8eba3c6 | 681 | { |
14bc53a8 | 682 | gdb::unique_xmalloc_ptr<char> real_path; |
f8eba3c6 TT |
683 | |
684 | /* Here we are interested in canonicalizing an absolute path, not | |
685 | absolutizing a relative path. */ | |
686 | if (IS_ABSOLUTE_PATH (name)) | |
687 | { | |
14278e1f | 688 | real_path = gdb_realpath (name); |
14bc53a8 | 689 | gdb_assert (IS_ABSOLUTE_PATH (real_path.get ())); |
f8eba3c6 TT |
690 | } |
691 | ||
2030c079 | 692 | for (objfile *objfile : current_program_space->objfiles ()) |
14bc53a8 PA |
693 | { |
694 | if (iterate_over_some_symtabs (name, real_path.get (), | |
695 | objfile->compunit_symtabs, NULL, | |
696 | callback)) | |
f8eba3c6 | 697 | return; |
14bc53a8 | 698 | } |
f8eba3c6 | 699 | |
c906108c SS |
700 | /* Same search rules as above apply here, but now we look thru the |
701 | psymtabs. */ | |
702 | ||
2030c079 | 703 | for (objfile *objfile : current_program_space->objfiles ()) |
14bc53a8 | 704 | { |
4d080b46 TT |
705 | if (objfile->map_symtabs_matching_filename (name, real_path.get (), |
706 | callback)) | |
f8eba3c6 | 707 | return; |
14bc53a8 | 708 | } |
c906108c | 709 | } |
f8eba3c6 TT |
710 | |
711 | /* A wrapper for iterate_over_symtabs that returns the first matching | |
712 | symtab, or NULL. */ | |
713 | ||
714 | struct symtab * | |
715 | lookup_symtab (const char *name) | |
716 | { | |
717 | struct symtab *result = NULL; | |
718 | ||
14bc53a8 PA |
719 | iterate_over_symtabs (name, [&] (symtab *symtab) |
720 | { | |
721 | result = symtab; | |
722 | return true; | |
723 | }); | |
724 | ||
f8eba3c6 TT |
725 | return result; |
726 | } | |
727 | ||
c906108c SS |
728 | \f |
729 | /* Mangle a GDB method stub type. This actually reassembles the pieces of the | |
730 | full method name, which consist of the class name (from T), the unadorned | |
731 | method name from METHOD_ID, and the signature for the specific overload, | |
c378eb4e | 732 | specified by SIGNATURE_ID. Note that this function is g++ specific. */ |
c906108c SS |
733 | |
734 | char * | |
fba45db2 | 735 | gdb_mangle_name (struct type *type, int method_id, int signature_id) |
c906108c SS |
736 | { |
737 | int mangled_name_len; | |
738 | char *mangled_name; | |
739 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
740 | struct fn_field *method = &f[signature_id]; | |
0d5cff50 | 741 | const char *field_name = TYPE_FN_FIELDLIST_NAME (type, method_id); |
1d06ead6 | 742 | const char *physname = TYPE_FN_FIELD_PHYSNAME (f, signature_id); |
7d93a1e0 | 743 | const char *newname = type->name (); |
c906108c SS |
744 | |
745 | /* Does the form of physname indicate that it is the full mangled name | |
746 | of a constructor (not just the args)? */ | |
747 | int is_full_physname_constructor; | |
748 | ||
749 | int is_constructor; | |
015a42b4 | 750 | int is_destructor = is_destructor_name (physname); |
c906108c | 751 | /* Need a new type prefix. */ |
e6a959d6 PA |
752 | const char *const_prefix = method->is_const ? "C" : ""; |
753 | const char *volatile_prefix = method->is_volatile ? "V" : ""; | |
c906108c SS |
754 | char buf[20]; |
755 | int len = (newname == NULL ? 0 : strlen (newname)); | |
756 | ||
43630227 PS |
757 | /* Nothing to do if physname already contains a fully mangled v3 abi name |
758 | or an operator name. */ | |
759 | if ((physname[0] == '_' && physname[1] == 'Z') | |
760 | || is_operator_name (field_name)) | |
235d1e03 EZ |
761 | return xstrdup (physname); |
762 | ||
015a42b4 | 763 | is_full_physname_constructor = is_constructor_name (physname); |
c906108c | 764 | |
3e43a32a MS |
765 | is_constructor = is_full_physname_constructor |
766 | || (newname && strcmp (field_name, newname) == 0); | |
c906108c SS |
767 | |
768 | if (!is_destructor) | |
61012eef | 769 | is_destructor = (startswith (physname, "__dt")); |
c906108c SS |
770 | |
771 | if (is_destructor || is_full_physname_constructor) | |
772 | { | |
c5aa993b JM |
773 | mangled_name = (char *) xmalloc (strlen (physname) + 1); |
774 | strcpy (mangled_name, physname); | |
c906108c SS |
775 | return mangled_name; |
776 | } | |
777 | ||
778 | if (len == 0) | |
779 | { | |
8c042590 | 780 | xsnprintf (buf, sizeof (buf), "__%s%s", const_prefix, volatile_prefix); |
c906108c SS |
781 | } |
782 | else if (physname[0] == 't' || physname[0] == 'Q') | |
783 | { | |
784 | /* The physname for template and qualified methods already includes | |
dda83cd7 | 785 | the class name. */ |
8c042590 | 786 | xsnprintf (buf, sizeof (buf), "__%s%s", const_prefix, volatile_prefix); |
c906108c SS |
787 | newname = NULL; |
788 | len = 0; | |
789 | } | |
790 | else | |
791 | { | |
8c042590 PM |
792 | xsnprintf (buf, sizeof (buf), "__%s%s%d", const_prefix, |
793 | volatile_prefix, len); | |
c906108c SS |
794 | } |
795 | mangled_name_len = ((is_constructor ? 0 : strlen (field_name)) | |
235d1e03 | 796 | + strlen (buf) + len + strlen (physname) + 1); |
c906108c | 797 | |
433759f7 MS |
798 | mangled_name = (char *) xmalloc (mangled_name_len); |
799 | if (is_constructor) | |
800 | mangled_name[0] = '\0'; | |
801 | else | |
802 | strcpy (mangled_name, field_name); | |
803 | ||
c906108c SS |
804 | strcat (mangled_name, buf); |
805 | /* If the class doesn't have a name, i.e. newname NULL, then we just | |
806 | mangle it using 0 for the length of the class. Thus it gets mangled | |
c378eb4e | 807 | as something starting with `::' rather than `classname::'. */ |
c906108c SS |
808 | if (newname != NULL) |
809 | strcat (mangled_name, newname); | |
810 | ||
811 | strcat (mangled_name, physname); | |
812 | return (mangled_name); | |
813 | } | |
12af6855 | 814 | |
ff985671 | 815 | /* See symtab.h. */ |
eca864fe | 816 | |
b250c185 | 817 | void |
ff985671 TT |
818 | general_symbol_info::set_demangled_name (const char *name, |
819 | struct obstack *obstack) | |
b250c185 | 820 | { |
ff985671 | 821 | if (language () == language_ada) |
f85f34ed TT |
822 | { |
823 | if (name == NULL) | |
824 | { | |
ff985671 TT |
825 | ada_mangled = 0; |
826 | language_specific.obstack = obstack; | |
f85f34ed TT |
827 | } |
828 | else | |
829 | { | |
ff985671 TT |
830 | ada_mangled = 1; |
831 | language_specific.demangled_name = name; | |
f85f34ed TT |
832 | } |
833 | } | |
29df156d | 834 | else |
ff985671 | 835 | language_specific.demangled_name = name; |
b250c185 SW |
836 | } |
837 | ||
12af6855 | 838 | \f |
89aad1f9 | 839 | /* Initialize the language dependent portion of a symbol |
c378eb4e | 840 | depending upon the language for the symbol. */ |
eca864fe | 841 | |
89aad1f9 | 842 | void |
d3ecddab CB |
843 | general_symbol_info::set_language (enum language language, |
844 | struct obstack *obstack) | |
89aad1f9 | 845 | { |
d3ecddab | 846 | m_language = language; |
c1b5c1eb CB |
847 | if (language == language_cplus |
848 | || language == language_d | |
849 | || language == language_go | |
850 | || language == language_objc | |
851 | || language == language_fortran) | |
89aad1f9 | 852 | { |
ff985671 | 853 | set_demangled_name (NULL, obstack); |
f85f34ed | 854 | } |
c1b5c1eb | 855 | else if (language == language_ada) |
f85f34ed | 856 | { |
d3ecddab CB |
857 | gdb_assert (ada_mangled == 0); |
858 | language_specific.obstack = obstack; | |
89aad1f9 | 859 | } |
89aad1f9 EZ |
860 | else |
861 | { | |
d3ecddab | 862 | memset (&language_specific, 0, sizeof (language_specific)); |
89aad1f9 EZ |
863 | } |
864 | } | |
865 | ||
2de7ced7 DJ |
866 | /* Functions to initialize a symbol's mangled name. */ |
867 | ||
04a679b8 TT |
868 | /* Objects of this type are stored in the demangled name hash table. */ |
869 | struct demangled_name_entry | |
870 | { | |
8082468f | 871 | demangled_name_entry (std::string_view mangled_name) |
3a494279 CB |
872 | : mangled (mangled_name) {} |
873 | ||
8082468f | 874 | std::string_view mangled; |
403772ef | 875 | enum language language; |
5396ae17 | 876 | gdb::unique_xmalloc_ptr<char> demangled; |
04a679b8 TT |
877 | }; |
878 | ||
879 | /* Hash function for the demangled name hash. */ | |
eca864fe | 880 | |
04a679b8 TT |
881 | static hashval_t |
882 | hash_demangled_name_entry (const void *data) | |
883 | { | |
19ba03f4 SM |
884 | const struct demangled_name_entry *e |
885 | = (const struct demangled_name_entry *) data; | |
433759f7 | 886 | |
1a8605a8 | 887 | return gdb::string_view_hash () (e->mangled); |
04a679b8 TT |
888 | } |
889 | ||
890 | /* Equality function for the demangled name hash. */ | |
eca864fe | 891 | |
04a679b8 TT |
892 | static int |
893 | eq_demangled_name_entry (const void *a, const void *b) | |
894 | { | |
19ba03f4 SM |
895 | const struct demangled_name_entry *da |
896 | = (const struct demangled_name_entry *) a; | |
897 | const struct demangled_name_entry *db | |
898 | = (const struct demangled_name_entry *) b; | |
433759f7 | 899 | |
7bb43059 | 900 | return da->mangled == db->mangled; |
04a679b8 TT |
901 | } |
902 | ||
3a494279 CB |
903 | static void |
904 | free_demangled_name_entry (void *data) | |
905 | { | |
906 | struct demangled_name_entry *e | |
907 | = (struct demangled_name_entry *) data; | |
908 | ||
909 | e->~demangled_name_entry(); | |
910 | } | |
911 | ||
2de7ced7 DJ |
912 | /* Create the hash table used for demangled names. Each hash entry is |
913 | a pair of strings; one for the mangled name and one for the demangled | |
914 | name. The entry is hashed via just the mangled name. */ | |
915 | ||
916 | static void | |
0f14768a | 917 | create_demangled_names_hash (struct objfile_per_bfd_storage *per_bfd) |
2de7ced7 DJ |
918 | { |
919 | /* Choose 256 as the starting size of the hash table, somewhat arbitrarily. | |
9af17804 | 920 | The hash table code will round this up to the next prime number. |
2de7ced7 | 921 | Choosing a much larger table size wastes memory, and saves only about |
f8bab2d6 CB |
922 | 1% in symbol reading. However, if the minsym count is already |
923 | initialized (e.g. because symbol name setting was deferred to | |
924 | a background thread) we can initialize the hashtable with a count | |
925 | based on that, because we will almost certainly have at least that | |
926 | many entries. If we have a nonzero number but less than 256, | |
927 | we still stay with 256 to have some space for psymbols, etc. */ | |
928 | ||
929 | /* htab will expand the table when it is 3/4th full, so we account for that | |
930 | here. +2 to round up. */ | |
931 | int minsym_based_count = (per_bfd->minimal_symbol_count + 2) / 3 * 4; | |
932 | int count = std::max (per_bfd->minimal_symbol_count, minsym_based_count); | |
2de7ced7 | 933 | |
db92718b | 934 | per_bfd->demangled_names_hash.reset (htab_create_alloc |
f8bab2d6 | 935 | (count, hash_demangled_name_entry, eq_demangled_name_entry, |
3a494279 | 936 | free_demangled_name_entry, xcalloc, xfree)); |
2de7ced7 | 937 | } |
12af6855 | 938 | |
d55c9a68 | 939 | /* See symtab.h */ |
12af6855 | 940 | |
3456e70c | 941 | gdb::unique_xmalloc_ptr<char> |
2de7ced7 DJ |
942 | symbol_find_demangled_name (struct general_symbol_info *gsymbol, |
943 | const char *mangled) | |
12af6855 | 944 | { |
3456e70c | 945 | gdb::unique_xmalloc_ptr<char> demangled; |
8b302db8 | 946 | int i; |
12af6855 | 947 | |
129bce36 | 948 | if (gsymbol->language () != language_unknown) |
1bae87b9 | 949 | { |
c1b5c1eb | 950 | const struct language_defn *lang = language_def (gsymbol->language ()); |
8b302db8 | 951 | |
6f827019 | 952 | lang->sniff_from_mangled_name (mangled, &demangled); |
8b302db8 | 953 | return demangled; |
6aecb9c2 | 954 | } |
8b302db8 TT |
955 | |
956 | for (i = language_unknown; i < nr_languages; ++i) | |
a766d390 | 957 | { |
8b302db8 TT |
958 | enum language l = (enum language) i; |
959 | const struct language_defn *lang = language_def (l); | |
960 | ||
6f827019 | 961 | if (lang->sniff_from_mangled_name (mangled, &demangled)) |
a766d390 | 962 | { |
c1b5c1eb | 963 | gsymbol->m_language = l; |
a766d390 DE |
964 | return demangled; |
965 | } | |
966 | } | |
967 | ||
2de7ced7 DJ |
968 | return NULL; |
969 | } | |
970 | ||
980cae7a | 971 | /* Set both the mangled and demangled (if any) names for GSYMBOL based |
04a679b8 TT |
972 | on LINKAGE_NAME and LEN. Ordinarily, NAME is copied onto the |
973 | objfile's obstack; but if COPY_NAME is 0 and if NAME is | |
974 | NUL-terminated, then this function assumes that NAME is already | |
975 | correctly saved (either permanently or with a lifetime tied to the | |
976 | objfile), and it will not be copied. | |
977 | ||
978 | The hash table corresponding to OBJFILE is used, and the memory | |
84a1243b | 979 | comes from the per-BFD storage_obstack. LINKAGE_NAME is copied, |
04a679b8 | 980 | so the pointer can be discarded after calling this function. */ |
2de7ced7 DJ |
981 | |
982 | void | |
8082468f | 983 | general_symbol_info::compute_and_set_names (std::string_view linkage_name, |
4d4eaa30 CB |
984 | bool copy_name, |
985 | objfile_per_bfd_storage *per_bfd, | |
6b09f134 | 986 | std::optional<hashval_t> hash) |
2de7ced7 | 987 | { |
04a679b8 | 988 | struct demangled_name_entry **slot; |
2de7ced7 | 989 | |
4d4eaa30 | 990 | if (language () == language_ada) |
b06ead72 JB |
991 | { |
992 | /* In Ada, we do the symbol lookups using the mangled name, so | |
dda83cd7 | 993 | we can save some space by not storing the demangled name. */ |
92174eea | 994 | if (!copy_name) |
4d4eaa30 | 995 | m_name = linkage_name.data (); |
04a679b8 | 996 | else |
869d8950 TT |
997 | m_name = obstack_strndup (&per_bfd->storage_obstack, |
998 | linkage_name.data (), | |
999 | linkage_name.length ()); | |
ff985671 | 1000 | set_demangled_name (NULL, &per_bfd->storage_obstack); |
b06ead72 JB |
1001 | |
1002 | return; | |
1003 | } | |
1004 | ||
84a1243b | 1005 | if (per_bfd->demangled_names_hash == NULL) |
0f14768a | 1006 | create_demangled_names_hash (per_bfd); |
04a679b8 | 1007 | |
31edb802 | 1008 | struct demangled_name_entry entry (linkage_name); |
e76b2246 CB |
1009 | if (!hash.has_value ()) |
1010 | hash = hash_demangled_name_entry (&entry); | |
04a679b8 | 1011 | slot = ((struct demangled_name_entry **) |
dda83cd7 | 1012 | htab_find_slot_with_hash (per_bfd->demangled_names_hash.get (), |
e76b2246 | 1013 | &entry, *hash, INSERT)); |
2de7ced7 | 1014 | |
57d75002 CB |
1015 | /* The const_cast is safe because the only reason it is already |
1016 | initialized is if we purposefully set it from a background | |
1017 | thread to avoid doing the work here. However, it is still | |
1018 | allocated from the heap and needs to be freed by us, just | |
1019 | like if we called symbol_find_demangled_name here. If this is | |
1020 | nullptr, we call symbol_find_demangled_name below, but we put | |
1021 | this smart pointer here to be sure that we don't leak this name. */ | |
1022 | gdb::unique_xmalloc_ptr<char> demangled_name | |
1023 | (const_cast<char *> (language_specific.demangled_name)); | |
1024 | ||
2de7ced7 | 1025 | /* If this name is not in the hash table, add it. */ |
a766d390 DE |
1026 | if (*slot == NULL |
1027 | /* A C version of the symbol may have already snuck into the table. | |
1028 | This happens to, e.g., main.init (__go_init_main). Cope. */ | |
4d4eaa30 | 1029 | || (language () == language_go && (*slot)->demangled == nullptr)) |
2de7ced7 | 1030 | { |
0c921b21 | 1031 | /* A 0-terminated copy of the linkage name. Callers must set COPY_NAME |
dda83cd7 SM |
1032 | to true if the string might not be nullterminated. We have to make |
1033 | this copy because demangling needs a nullterminated string. */ | |
8082468f | 1034 | std::string_view linkage_name_copy; |
0c921b21 CB |
1035 | if (copy_name) |
1036 | { | |
31edb802 CB |
1037 | char *alloc_name = (char *) alloca (linkage_name.length () + 1); |
1038 | memcpy (alloc_name, linkage_name.data (), linkage_name.length ()); | |
1039 | alloc_name[linkage_name.length ()] = '\0'; | |
0c921b21 | 1040 | |
8082468f | 1041 | linkage_name_copy = std::string_view (alloc_name, |
31edb802 | 1042 | linkage_name.length ()); |
0c921b21 CB |
1043 | } |
1044 | else | |
1045 | linkage_name_copy = linkage_name; | |
1046 | ||
57d75002 | 1047 | if (demangled_name.get () == nullptr) |
3456e70c TT |
1048 | demangled_name |
1049 | = symbol_find_demangled_name (this, linkage_name_copy.data ()); | |
2de7ced7 | 1050 | |
04a679b8 | 1051 | /* Suppose we have demangled_name==NULL, copy_name==0, and |
9c37b5ae | 1052 | linkage_name_copy==linkage_name. In this case, we already have the |
04a679b8 TT |
1053 | mangled name saved, and we don't have a demangled name. So, |
1054 | you might think we could save a little space by not recording | |
1055 | this in the hash table at all. | |
5396ae17 | 1056 | |
04a679b8 TT |
1057 | It turns out that it is actually important to still save such |
1058 | an entry in the hash table, because storing this name gives | |
705b5767 | 1059 | us better bcache hit rates for partial symbols. */ |
0c921b21 | 1060 | if (!copy_name) |
04a679b8 | 1061 | { |
224c3ddb SM |
1062 | *slot |
1063 | = ((struct demangled_name_entry *) | |
1064 | obstack_alloc (&per_bfd->storage_obstack, | |
5396ae17 | 1065 | sizeof (demangled_name_entry))); |
31edb802 | 1066 | new (*slot) demangled_name_entry (linkage_name); |
04a679b8 TT |
1067 | } |
1068 | else | |
1069 | { | |
1070 | /* If we must copy the mangled name, put it directly after | |
5396ae17 | 1071 | the struct so we can have a single allocation. */ |
224c3ddb SM |
1072 | *slot |
1073 | = ((struct demangled_name_entry *) | |
1074 | obstack_alloc (&per_bfd->storage_obstack, | |
31edb802 CB |
1075 | sizeof (demangled_name_entry) |
1076 | + linkage_name.length () + 1)); | |
5396ae17 | 1077 | char *mangled_ptr = reinterpret_cast<char *> (*slot + 1); |
31edb802 CB |
1078 | memcpy (mangled_ptr, linkage_name.data (), linkage_name.length ()); |
1079 | mangled_ptr [linkage_name.length ()] = '\0'; | |
3a494279 | 1080 | new (*slot) demangled_name_entry |
8082468f | 1081 | (std::string_view (mangled_ptr, linkage_name.length ())); |
04a679b8 | 1082 | } |
d55c9a68 | 1083 | (*slot)->demangled = std::move (demangled_name); |
4d4eaa30 | 1084 | (*slot)->language = language (); |
2de7ced7 | 1085 | } |
129bce36 | 1086 | else if (language () == language_unknown) |
4d4eaa30 | 1087 | m_language = (*slot)->language; |
2de7ced7 | 1088 | |
4d4eaa30 | 1089 | m_name = (*slot)->mangled.data (); |
ff985671 | 1090 | set_demangled_name ((*slot)->demangled.get (), &per_bfd->storage_obstack); |
2de7ced7 DJ |
1091 | } |
1092 | ||
c9d95fa3 | 1093 | /* See symtab.h. */ |
22abf04a | 1094 | |
0d5cff50 | 1095 | const char * |
c9d95fa3 | 1096 | general_symbol_info::natural_name () const |
22abf04a | 1097 | { |
c1b5c1eb | 1098 | switch (language ()) |
22abf04a | 1099 | { |
1f8173e6 | 1100 | case language_cplus: |
6aecb9c2 | 1101 | case language_d: |
a766d390 | 1102 | case language_go: |
1f8173e6 | 1103 | case language_objc: |
f55ee35c | 1104 | case language_fortran: |
8c87a452 | 1105 | case language_rust: |
7151c1af TT |
1106 | if (language_specific.demangled_name != nullptr) |
1107 | return language_specific.demangled_name; | |
1f8173e6 PH |
1108 | break; |
1109 | case language_ada: | |
c9d95fa3 | 1110 | return ada_decode_symbol (this); |
1f8173e6 PH |
1111 | default: |
1112 | break; | |
22abf04a | 1113 | } |
4d4eaa30 | 1114 | return linkage_name (); |
22abf04a DC |
1115 | } |
1116 | ||
c9d95fa3 | 1117 | /* See symtab.h. */ |
eca864fe | 1118 | |
0d5cff50 | 1119 | const char * |
c9d95fa3 | 1120 | general_symbol_info::demangled_name () const |
9cc0d196 | 1121 | { |
c6e5ee5e SDJ |
1122 | const char *dem_name = NULL; |
1123 | ||
c1b5c1eb | 1124 | switch (language ()) |
1f8173e6 PH |
1125 | { |
1126 | case language_cplus: | |
6aecb9c2 | 1127 | case language_d: |
a766d390 | 1128 | case language_go: |
1f8173e6 | 1129 | case language_objc: |
f55ee35c | 1130 | case language_fortran: |
8c87a452 | 1131 | case language_rust: |
7151c1af | 1132 | dem_name = language_specific.demangled_name; |
1f8173e6 PH |
1133 | break; |
1134 | case language_ada: | |
c9d95fa3 | 1135 | dem_name = ada_decode_symbol (this); |
1f8173e6 PH |
1136 | break; |
1137 | default: | |
1138 | break; | |
1139 | } | |
c6e5ee5e | 1140 | return dem_name; |
9cc0d196 | 1141 | } |
fe39c653 | 1142 | |
c9d95fa3 | 1143 | /* See symtab.h. */ |
eca864fe | 1144 | |
0d5cff50 | 1145 | const char * |
c9d95fa3 | 1146 | general_symbol_info::search_name () const |
fc062ac6 | 1147 | { |
c1b5c1eb | 1148 | if (language () == language_ada) |
4d4eaa30 | 1149 | return linkage_name (); |
1f8173e6 | 1150 | else |
c9d95fa3 | 1151 | return natural_name (); |
4725b721 | 1152 | } |
b5ec771e PA |
1153 | |
1154 | /* See symtab.h. */ | |
1155 | ||
ebbc3a7d AB |
1156 | struct obj_section * |
1157 | general_symbol_info::obj_section (const struct objfile *objfile) const | |
1158 | { | |
a52d653e | 1159 | if (section_index () >= 0) |
9ed8433a | 1160 | return &objfile->sections_start[section_index ()]; |
ebbc3a7d AB |
1161 | return nullptr; |
1162 | } | |
1163 | ||
1164 | /* See symtab.h. */ | |
1165 | ||
b5ec771e PA |
1166 | bool |
1167 | symbol_matches_search_name (const struct general_symbol_info *gsymbol, | |
1168 | const lookup_name_info &name) | |
1169 | { | |
1170 | symbol_name_matcher_ftype *name_match | |
c9debfb9 | 1171 | = language_def (gsymbol->language ())->get_symbol_name_matcher (name); |
c9d95fa3 | 1172 | return name_match (gsymbol->search_name (), name, NULL); |
b5ec771e PA |
1173 | } |
1174 | ||
c906108c SS |
1175 | \f |
1176 | ||
ececd218 | 1177 | /* Return true if the two sections are the same, or if they could |
94277a38 DJ |
1178 | plausibly be copies of each other, one in an original object |
1179 | file and another in a separated debug file. */ | |
1180 | ||
ececd218 | 1181 | bool |
714835d5 UW |
1182 | matching_obj_sections (struct obj_section *obj_first, |
1183 | struct obj_section *obj_second) | |
94277a38 | 1184 | { |
714835d5 UW |
1185 | asection *first = obj_first? obj_first->the_bfd_section : NULL; |
1186 | asection *second = obj_second? obj_second->the_bfd_section : NULL; | |
94277a38 DJ |
1187 | |
1188 | /* If they're the same section, then they match. */ | |
1189 | if (first == second) | |
ececd218 | 1190 | return true; |
94277a38 DJ |
1191 | |
1192 | /* If either is NULL, give up. */ | |
1193 | if (first == NULL || second == NULL) | |
ececd218 | 1194 | return false; |
94277a38 DJ |
1195 | |
1196 | /* This doesn't apply to absolute symbols. */ | |
1197 | if (first->owner == NULL || second->owner == NULL) | |
ececd218 | 1198 | return false; |
94277a38 DJ |
1199 | |
1200 | /* If they're in the same object file, they must be different sections. */ | |
1201 | if (first->owner == second->owner) | |
ececd218 | 1202 | return false; |
94277a38 DJ |
1203 | |
1204 | /* Check whether the two sections are potentially corresponding. They must | |
1205 | have the same size, address, and name. We can't compare section indexes, | |
1206 | which would be more reliable, because some sections may have been | |
1207 | stripped. */ | |
fd361982 | 1208 | if (bfd_section_size (first) != bfd_section_size (second)) |
ececd218 | 1209 | return false; |
94277a38 | 1210 | |
818f79f6 | 1211 | /* In-memory addresses may start at a different offset, relativize them. */ |
fd361982 AM |
1212 | if (bfd_section_vma (first) - bfd_get_start_address (first->owner) |
1213 | != bfd_section_vma (second) - bfd_get_start_address (second->owner)) | |
ececd218 | 1214 | return false; |
94277a38 | 1215 | |
fd361982 AM |
1216 | if (bfd_section_name (first) == NULL |
1217 | || bfd_section_name (second) == NULL | |
1218 | || strcmp (bfd_section_name (first), bfd_section_name (second)) != 0) | |
ececd218 | 1219 | return false; |
94277a38 DJ |
1220 | |
1221 | /* Otherwise check that they are in corresponding objfiles. */ | |
1222 | ||
9d7c67bf | 1223 | struct objfile *obj = NULL; |
2030c079 | 1224 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
1225 | if (objfile->obfd == first->owner) |
1226 | { | |
1227 | obj = objfile; | |
1228 | break; | |
1229 | } | |
94277a38 DJ |
1230 | gdb_assert (obj != NULL); |
1231 | ||
1232 | if (obj->separate_debug_objfile != NULL | |
1233 | && obj->separate_debug_objfile->obfd == second->owner) | |
ececd218 | 1234 | return true; |
94277a38 DJ |
1235 | if (obj->separate_debug_objfile_backlink != NULL |
1236 | && obj->separate_debug_objfile_backlink->obfd == second->owner) | |
ececd218 | 1237 | return true; |
94277a38 | 1238 | |
ececd218 | 1239 | return false; |
94277a38 | 1240 | } |
c906108c | 1241 | \f |
f57d2163 DE |
1242 | /* Hash function for the symbol cache. */ |
1243 | ||
1244 | static unsigned int | |
1245 | hash_symbol_entry (const struct objfile *objfile_context, | |
1246 | const char *name, domain_enum domain) | |
1247 | { | |
1248 | unsigned int hash = (uintptr_t) objfile_context; | |
1249 | ||
1250 | if (name != NULL) | |
1251 | hash += htab_hash_string (name); | |
1252 | ||
2c26b84f DE |
1253 | /* Because of symbol_matches_domain we need VAR_DOMAIN and STRUCT_DOMAIN |
1254 | to map to the same slot. */ | |
1255 | if (domain == STRUCT_DOMAIN) | |
1256 | hash += VAR_DOMAIN * 7; | |
1257 | else | |
1258 | hash += domain * 7; | |
f57d2163 DE |
1259 | |
1260 | return hash; | |
1261 | } | |
1262 | ||
1263 | /* Equality function for the symbol cache. */ | |
1264 | ||
1265 | static int | |
1266 | eq_symbol_entry (const struct symbol_cache_slot *slot, | |
1267 | const struct objfile *objfile_context, | |
1268 | const char *name, domain_enum domain) | |
1269 | { | |
1270 | const char *slot_name; | |
1271 | domain_enum slot_domain; | |
1272 | ||
1273 | if (slot->state == SYMBOL_SLOT_UNUSED) | |
1274 | return 0; | |
1275 | ||
1276 | if (slot->objfile_context != objfile_context) | |
1277 | return 0; | |
1278 | ||
1279 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
1280 | { | |
1281 | slot_name = slot->value.not_found.name; | |
1282 | slot_domain = slot->value.not_found.domain; | |
1283 | } | |
1284 | else | |
1285 | { | |
987012b8 | 1286 | slot_name = slot->value.found.symbol->search_name (); |
6c9c307c | 1287 | slot_domain = slot->value.found.symbol->domain (); |
f57d2163 DE |
1288 | } |
1289 | ||
1290 | /* NULL names match. */ | |
1291 | if (slot_name == NULL && name == NULL) | |
1292 | { | |
1293 | /* But there's no point in calling symbol_matches_domain in the | |
1294 | SYMBOL_SLOT_FOUND case. */ | |
1295 | if (slot_domain != domain) | |
1296 | return 0; | |
1297 | } | |
1298 | else if (slot_name != NULL && name != NULL) | |
1299 | { | |
b5ec771e PA |
1300 | /* It's important that we use the same comparison that was done |
1301 | the first time through. If the slot records a found symbol, | |
1302 | then this means using the symbol name comparison function of | |
987012b8 | 1303 | the symbol's language with symbol->search_name (). See |
b5ec771e PA |
1304 | dictionary.c. It also means using symbol_matches_domain for |
1305 | found symbols. See block.c. | |
f57d2163 DE |
1306 | |
1307 | If the slot records a not-found symbol, then require a precise match. | |
1308 | We could still be lax with whitespace like strcmp_iw though. */ | |
1309 | ||
1310 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
1311 | { | |
1312 | if (strcmp (slot_name, name) != 0) | |
1313 | return 0; | |
1314 | if (slot_domain != domain) | |
1315 | return 0; | |
1316 | } | |
1317 | else | |
1318 | { | |
d12307c1 | 1319 | struct symbol *sym = slot->value.found.symbol; |
b5ec771e | 1320 | lookup_name_info lookup_name (name, symbol_name_match_type::FULL); |
f57d2163 | 1321 | |
81e32b6a | 1322 | if (!symbol_matches_search_name (sym, lookup_name)) |
f57d2163 | 1323 | return 0; |
b5ec771e | 1324 | |
c1b5c1eb | 1325 | if (!symbol_matches_domain (sym->language (), slot_domain, domain)) |
f57d2163 DE |
1326 | return 0; |
1327 | } | |
1328 | } | |
1329 | else | |
1330 | { | |
1331 | /* Only one name is NULL. */ | |
1332 | return 0; | |
1333 | } | |
1334 | ||
1335 | return 1; | |
1336 | } | |
1337 | ||
1338 | /* Given a cache of size SIZE, return the size of the struct (with variable | |
1339 | length array) in bytes. */ | |
1340 | ||
1341 | static size_t | |
1342 | symbol_cache_byte_size (unsigned int size) | |
1343 | { | |
1344 | return (sizeof (struct block_symbol_cache) | |
1345 | + ((size - 1) * sizeof (struct symbol_cache_slot))); | |
1346 | } | |
1347 | ||
1348 | /* Resize CACHE. */ | |
1349 | ||
1350 | static void | |
1351 | resize_symbol_cache (struct symbol_cache *cache, unsigned int new_size) | |
1352 | { | |
1353 | /* If there's no change in size, don't do anything. | |
1354 | All caches have the same size, so we can just compare with the size | |
1355 | of the global symbols cache. */ | |
1356 | if ((cache->global_symbols != NULL | |
1357 | && cache->global_symbols->size == new_size) | |
1358 | || (cache->global_symbols == NULL | |
1359 | && new_size == 0)) | |
1360 | return; | |
1361 | ||
82f910ea PW |
1362 | destroy_block_symbol_cache (cache->global_symbols); |
1363 | destroy_block_symbol_cache (cache->static_symbols); | |
f57d2163 DE |
1364 | |
1365 | if (new_size == 0) | |
1366 | { | |
1367 | cache->global_symbols = NULL; | |
1368 | cache->static_symbols = NULL; | |
1369 | } | |
1370 | else | |
1371 | { | |
1372 | size_t total_size = symbol_cache_byte_size (new_size); | |
1373 | ||
224c3ddb SM |
1374 | cache->global_symbols |
1375 | = (struct block_symbol_cache *) xcalloc (1, total_size); | |
1376 | cache->static_symbols | |
1377 | = (struct block_symbol_cache *) xcalloc (1, total_size); | |
f57d2163 DE |
1378 | cache->global_symbols->size = new_size; |
1379 | cache->static_symbols->size = new_size; | |
1380 | } | |
1381 | } | |
1382 | ||
f57d2163 DE |
1383 | /* Return the symbol cache of PSPACE. |
1384 | Create one if it doesn't exist yet. */ | |
1385 | ||
1386 | static struct symbol_cache * | |
1387 | get_symbol_cache (struct program_space *pspace) | |
1388 | { | |
3017b94d | 1389 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 DE |
1390 | |
1391 | if (cache == NULL) | |
1392 | { | |
3017b94d TT |
1393 | cache = symbol_cache_key.emplace (pspace); |
1394 | resize_symbol_cache (cache, symbol_cache_size); | |
f57d2163 DE |
1395 | } |
1396 | ||
1397 | return cache; | |
1398 | } | |
1399 | ||
f57d2163 DE |
1400 | /* Set the size of the symbol cache in all program spaces. */ |
1401 | ||
1402 | static void | |
1403 | set_symbol_cache_size (unsigned int new_size) | |
1404 | { | |
94c93c35 | 1405 | for (struct program_space *pspace : program_spaces) |
f57d2163 | 1406 | { |
3017b94d | 1407 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 DE |
1408 | |
1409 | /* The pspace could have been created but not have a cache yet. */ | |
1410 | if (cache != NULL) | |
1411 | resize_symbol_cache (cache, new_size); | |
1412 | } | |
1413 | } | |
1414 | ||
1415 | /* Called when symbol-cache-size is set. */ | |
1416 | ||
1417 | static void | |
eb4c3f4a | 1418 | set_symbol_cache_size_handler (const char *args, int from_tty, |
f57d2163 DE |
1419 | struct cmd_list_element *c) |
1420 | { | |
1421 | if (new_symbol_cache_size > MAX_SYMBOL_CACHE_SIZE) | |
1422 | { | |
1423 | /* Restore the previous value. | |
1424 | This is the value the "show" command prints. */ | |
1425 | new_symbol_cache_size = symbol_cache_size; | |
1426 | ||
1427 | error (_("Symbol cache size is too large, max is %u."), | |
1428 | MAX_SYMBOL_CACHE_SIZE); | |
1429 | } | |
1430 | symbol_cache_size = new_symbol_cache_size; | |
1431 | ||
1432 | set_symbol_cache_size (symbol_cache_size); | |
1433 | } | |
1434 | ||
1435 | /* Lookup symbol NAME,DOMAIN in BLOCK in the symbol cache of PSPACE. | |
1436 | OBJFILE_CONTEXT is the current objfile, which may be NULL. | |
1437 | The result is the symbol if found, SYMBOL_LOOKUP_FAILED if a previous lookup | |
1438 | failed (and thus this one will too), or NULL if the symbol is not present | |
1439 | in the cache. | |
d0509ba4 CB |
1440 | *BSC_PTR and *SLOT_PTR are set to the cache and slot of the symbol, which |
1441 | can be used to save the result of a full lookup attempt. */ | |
f57d2163 | 1442 | |
d12307c1 | 1443 | static struct block_symbol |
f57d2163 | 1444 | symbol_cache_lookup (struct symbol_cache *cache, |
ddbcedf5 | 1445 | struct objfile *objfile_context, enum block_enum block, |
f57d2163 DE |
1446 | const char *name, domain_enum domain, |
1447 | struct block_symbol_cache **bsc_ptr, | |
1448 | struct symbol_cache_slot **slot_ptr) | |
1449 | { | |
1450 | struct block_symbol_cache *bsc; | |
1451 | unsigned int hash; | |
1452 | struct symbol_cache_slot *slot; | |
1453 | ||
1454 | if (block == GLOBAL_BLOCK) | |
1455 | bsc = cache->global_symbols; | |
1456 | else | |
1457 | bsc = cache->static_symbols; | |
1458 | if (bsc == NULL) | |
1459 | { | |
1460 | *bsc_ptr = NULL; | |
1461 | *slot_ptr = NULL; | |
6640a367 | 1462 | return {}; |
f57d2163 DE |
1463 | } |
1464 | ||
1465 | hash = hash_symbol_entry (objfile_context, name, domain); | |
1466 | slot = bsc->symbols + hash % bsc->size; | |
f57d2163 | 1467 | |
d0509ba4 CB |
1468 | *bsc_ptr = bsc; |
1469 | *slot_ptr = slot; | |
1470 | ||
f57d2163 DE |
1471 | if (eq_symbol_entry (slot, objfile_context, name, domain)) |
1472 | { | |
b1e678d9 AB |
1473 | symbol_lookup_debug_printf ("%s block symbol cache hit%s for %s, %s", |
1474 | block == GLOBAL_BLOCK ? "Global" : "Static", | |
1475 | slot->state == SYMBOL_SLOT_NOT_FOUND | |
1476 | ? " (not found)" : "", name, | |
1477 | domain_name (domain)); | |
f57d2163 DE |
1478 | ++bsc->hits; |
1479 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
1480 | return SYMBOL_LOOKUP_FAILED; | |
1481 | return slot->value.found; | |
1482 | } | |
1483 | ||
2c26b84f DE |
1484 | /* Symbol is not present in the cache. */ |
1485 | ||
b1e678d9 AB |
1486 | symbol_lookup_debug_printf ("%s block symbol cache miss for %s, %s", |
1487 | block == GLOBAL_BLOCK ? "Global" : "Static", | |
1488 | name, domain_name (domain)); | |
f57d2163 | 1489 | ++bsc->misses; |
6640a367 | 1490 | return {}; |
f57d2163 DE |
1491 | } |
1492 | ||
f57d2163 DE |
1493 | /* Mark SYMBOL as found in SLOT. |
1494 | OBJFILE_CONTEXT is the current objfile when the lookup was done, or NULL | |
1495 | if it's not needed to distinguish lookups (STATIC_BLOCK). It is *not* | |
1496 | necessarily the objfile the symbol was found in. */ | |
1497 | ||
1498 | static void | |
1499 | symbol_cache_mark_found (struct block_symbol_cache *bsc, | |
1500 | struct symbol_cache_slot *slot, | |
1501 | struct objfile *objfile_context, | |
d12307c1 PMR |
1502 | struct symbol *symbol, |
1503 | const struct block *block) | |
f57d2163 DE |
1504 | { |
1505 | if (bsc == NULL) | |
1506 | return; | |
1507 | if (slot->state != SYMBOL_SLOT_UNUSED) | |
1508 | { | |
1509 | ++bsc->collisions; | |
1510 | symbol_cache_clear_slot (slot); | |
1511 | } | |
1512 | slot->state = SYMBOL_SLOT_FOUND; | |
1513 | slot->objfile_context = objfile_context; | |
d12307c1 PMR |
1514 | slot->value.found.symbol = symbol; |
1515 | slot->value.found.block = block; | |
f57d2163 DE |
1516 | } |
1517 | ||
1518 | /* Mark symbol NAME, DOMAIN as not found in SLOT. | |
1519 | OBJFILE_CONTEXT is the current objfile when the lookup was done, or NULL | |
1520 | if it's not needed to distinguish lookups (STATIC_BLOCK). */ | |
1521 | ||
1522 | static void | |
1523 | symbol_cache_mark_not_found (struct block_symbol_cache *bsc, | |
1524 | struct symbol_cache_slot *slot, | |
1525 | struct objfile *objfile_context, | |
1526 | const char *name, domain_enum domain) | |
1527 | { | |
1528 | if (bsc == NULL) | |
1529 | return; | |
1530 | if (slot->state != SYMBOL_SLOT_UNUSED) | |
1531 | { | |
1532 | ++bsc->collisions; | |
1533 | symbol_cache_clear_slot (slot); | |
1534 | } | |
1535 | slot->state = SYMBOL_SLOT_NOT_FOUND; | |
1536 | slot->objfile_context = objfile_context; | |
1537 | slot->value.not_found.name = xstrdup (name); | |
1538 | slot->value.not_found.domain = domain; | |
1539 | } | |
1540 | ||
1541 | /* Flush the symbol cache of PSPACE. */ | |
1542 | ||
1543 | static void | |
1544 | symbol_cache_flush (struct program_space *pspace) | |
1545 | { | |
3017b94d | 1546 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 | 1547 | int pass; |
f57d2163 DE |
1548 | |
1549 | if (cache == NULL) | |
1550 | return; | |
1551 | if (cache->global_symbols == NULL) | |
1552 | { | |
1553 | gdb_assert (symbol_cache_size == 0); | |
1554 | gdb_assert (cache->static_symbols == NULL); | |
1555 | return; | |
1556 | } | |
1557 | ||
1558 | /* If the cache is untouched since the last flush, early exit. | |
1559 | This is important for performance during the startup of a program linked | |
1560 | with 100s (or 1000s) of shared libraries. */ | |
1561 | if (cache->global_symbols->misses == 0 | |
1562 | && cache->static_symbols->misses == 0) | |
1563 | return; | |
1564 | ||
1565 | gdb_assert (cache->global_symbols->size == symbol_cache_size); | |
1566 | gdb_assert (cache->static_symbols->size == symbol_cache_size); | |
1567 | ||
1568 | for (pass = 0; pass < 2; ++pass) | |
1569 | { | |
1570 | struct block_symbol_cache *bsc | |
1571 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1572 | unsigned int i; | |
1573 | ||
1574 | for (i = 0; i < bsc->size; ++i) | |
1575 | symbol_cache_clear_slot (&bsc->symbols[i]); | |
1576 | } | |
1577 | ||
1578 | cache->global_symbols->hits = 0; | |
1579 | cache->global_symbols->misses = 0; | |
1580 | cache->global_symbols->collisions = 0; | |
1581 | cache->static_symbols->hits = 0; | |
1582 | cache->static_symbols->misses = 0; | |
1583 | cache->static_symbols->collisions = 0; | |
1584 | } | |
1585 | ||
1586 | /* Dump CACHE. */ | |
1587 | ||
1588 | static void | |
1589 | symbol_cache_dump (const struct symbol_cache *cache) | |
1590 | { | |
1591 | int pass; | |
1592 | ||
1593 | if (cache->global_symbols == NULL) | |
1594 | { | |
6cb06a8c | 1595 | gdb_printf (" <disabled>\n"); |
f57d2163 DE |
1596 | return; |
1597 | } | |
1598 | ||
1599 | for (pass = 0; pass < 2; ++pass) | |
1600 | { | |
1601 | const struct block_symbol_cache *bsc | |
1602 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1603 | unsigned int i; | |
1604 | ||
1605 | if (pass == 0) | |
6cb06a8c | 1606 | gdb_printf ("Global symbols:\n"); |
f57d2163 | 1607 | else |
6cb06a8c | 1608 | gdb_printf ("Static symbols:\n"); |
f57d2163 DE |
1609 | |
1610 | for (i = 0; i < bsc->size; ++i) | |
1611 | { | |
1612 | const struct symbol_cache_slot *slot = &bsc->symbols[i]; | |
1613 | ||
1614 | QUIT; | |
1615 | ||
1616 | switch (slot->state) | |
1617 | { | |
1618 | case SYMBOL_SLOT_UNUSED: | |
1619 | break; | |
1620 | case SYMBOL_SLOT_NOT_FOUND: | |
6cb06a8c TT |
1621 | gdb_printf (" [%4u] = %s, %s %s (not found)\n", i, |
1622 | host_address_to_string (slot->objfile_context), | |
1623 | slot->value.not_found.name, | |
1624 | domain_name (slot->value.not_found.domain)); | |
f57d2163 DE |
1625 | break; |
1626 | case SYMBOL_SLOT_FOUND: | |
d12307c1 PMR |
1627 | { |
1628 | struct symbol *found = slot->value.found.symbol; | |
1629 | const struct objfile *context = slot->objfile_context; | |
1630 | ||
6cb06a8c TT |
1631 | gdb_printf (" [%4u] = %s, %s %s\n", i, |
1632 | host_address_to_string (context), | |
1633 | found->print_name (), | |
1634 | domain_name (found->domain ())); | |
d12307c1 PMR |
1635 | break; |
1636 | } | |
f57d2163 DE |
1637 | } |
1638 | } | |
1639 | } | |
1640 | } | |
1641 | ||
1642 | /* The "mt print symbol-cache" command. */ | |
1643 | ||
1644 | static void | |
510e5e56 | 1645 | maintenance_print_symbol_cache (const char *args, int from_tty) |
f57d2163 | 1646 | { |
94c93c35 | 1647 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1648 | { |
1649 | struct symbol_cache *cache; | |
1650 | ||
6cb06a8c TT |
1651 | gdb_printf (_("Symbol cache for pspace %d\n%s:\n"), |
1652 | pspace->num, | |
1653 | pspace->symfile_object_file != NULL | |
1654 | ? objfile_name (pspace->symfile_object_file) | |
1655 | : "(no object file)"); | |
f57d2163 DE |
1656 | |
1657 | /* If the cache hasn't been created yet, avoid creating one. */ | |
3017b94d | 1658 | cache = symbol_cache_key.get (pspace); |
f57d2163 | 1659 | if (cache == NULL) |
6cb06a8c | 1660 | gdb_printf (" <empty>\n"); |
f57d2163 DE |
1661 | else |
1662 | symbol_cache_dump (cache); | |
1663 | } | |
1664 | } | |
1665 | ||
1666 | /* The "mt flush-symbol-cache" command. */ | |
1667 | ||
1668 | static void | |
510e5e56 | 1669 | maintenance_flush_symbol_cache (const char *args, int from_tty) |
f57d2163 | 1670 | { |
94c93c35 | 1671 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1672 | { |
1673 | symbol_cache_flush (pspace); | |
1674 | } | |
1675 | } | |
1676 | ||
1677 | /* Print usage statistics of CACHE. */ | |
1678 | ||
1679 | static void | |
1680 | symbol_cache_stats (struct symbol_cache *cache) | |
1681 | { | |
1682 | int pass; | |
1683 | ||
1684 | if (cache->global_symbols == NULL) | |
1685 | { | |
6cb06a8c | 1686 | gdb_printf (" <disabled>\n"); |
f57d2163 DE |
1687 | return; |
1688 | } | |
1689 | ||
1690 | for (pass = 0; pass < 2; ++pass) | |
1691 | { | |
1692 | const struct block_symbol_cache *bsc | |
1693 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1694 | ||
1695 | QUIT; | |
1696 | ||
1697 | if (pass == 0) | |
6cb06a8c | 1698 | gdb_printf ("Global block cache stats:\n"); |
f57d2163 | 1699 | else |
6cb06a8c | 1700 | gdb_printf ("Static block cache stats:\n"); |
f57d2163 | 1701 | |
6cb06a8c TT |
1702 | gdb_printf (" size: %u\n", bsc->size); |
1703 | gdb_printf (" hits: %u\n", bsc->hits); | |
1704 | gdb_printf (" misses: %u\n", bsc->misses); | |
1705 | gdb_printf (" collisions: %u\n", bsc->collisions); | |
f57d2163 DE |
1706 | } |
1707 | } | |
1708 | ||
1709 | /* The "mt print symbol-cache-statistics" command. */ | |
1710 | ||
1711 | static void | |
510e5e56 | 1712 | maintenance_print_symbol_cache_statistics (const char *args, int from_tty) |
f57d2163 | 1713 | { |
94c93c35 | 1714 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1715 | { |
1716 | struct symbol_cache *cache; | |
1717 | ||
6cb06a8c TT |
1718 | gdb_printf (_("Symbol cache statistics for pspace %d\n%s:\n"), |
1719 | pspace->num, | |
1720 | pspace->symfile_object_file != NULL | |
1721 | ? objfile_name (pspace->symfile_object_file) | |
1722 | : "(no object file)"); | |
f57d2163 DE |
1723 | |
1724 | /* If the cache hasn't been created yet, avoid creating one. */ | |
3017b94d | 1725 | cache = symbol_cache_key.get (pspace); |
f57d2163 | 1726 | if (cache == NULL) |
6cb06a8c | 1727 | gdb_printf (" empty, no stats available\n"); |
f57d2163 DE |
1728 | else |
1729 | symbol_cache_stats (cache); | |
1730 | } | |
1731 | } | |
1732 | ||
1733 | /* This module's 'new_objfile' observer. */ | |
1734 | ||
1735 | static void | |
1736 | symtab_new_objfile_observer (struct objfile *objfile) | |
1737 | { | |
74daa597 SM |
1738 | symbol_cache_flush (objfile->pspace); |
1739 | } | |
1740 | ||
1741 | /* This module's 'all_objfiles_removed' observer. */ | |
1742 | ||
1743 | static void | |
1744 | symtab_all_objfiles_removed (program_space *pspace) | |
1745 | { | |
1746 | symbol_cache_flush (pspace); | |
a0a031bc | 1747 | |
74daa597 SM |
1748 | /* Forget everything we know about the main function. */ |
1749 | set_main_name (pspace, nullptr, language_unknown); | |
f57d2163 DE |
1750 | } |
1751 | ||
1752 | /* This module's 'free_objfile' observer. */ | |
1753 | ||
1754 | static void | |
1755 | symtab_free_objfile_observer (struct objfile *objfile) | |
1756 | { | |
1757 | symbol_cache_flush (objfile->pspace); | |
1758 | } | |
1759 | \f | |
49c1de0e | 1760 | /* See symtab.h. */ |
3f01c12b | 1761 | |
49c1de0e TT |
1762 | void |
1763 | fixup_symbol_section (struct symbol *sym, struct objfile *objfile) | |
c906108c | 1764 | { |
49c1de0e TT |
1765 | gdb_assert (sym != nullptr); |
1766 | gdb_assert (sym->is_objfile_owned ()); | |
1767 | gdb_assert (objfile != nullptr); | |
1768 | gdb_assert (sym->section_index () == -1); | |
1769 | ||
1770 | /* Note that if this ends up as -1, fixup_section will handle that | |
1771 | reasonably well. So, it's fine to use the objfile's section | |
1772 | index without doing the check that is done by the wrapper macros | |
1773 | like SECT_OFF_TEXT. */ | |
1774 | int fallback; | |
1775 | switch (sym->aclass ()) | |
1776 | { | |
1777 | case LOC_STATIC: | |
1778 | fallback = objfile->sect_index_data; | |
1779 | break; | |
1780 | ||
1781 | case LOC_LABEL: | |
1782 | fallback = objfile->sect_index_text; | |
1783 | break; | |
1784 | ||
1785 | default: | |
1786 | /* Nothing else will be listed in the minsyms -- no use looking | |
1787 | it up. */ | |
1788 | return; | |
1789 | } | |
1790 | ||
1791 | CORE_ADDR addr = sym->value_address (); | |
1792 | ||
c906108c | 1793 | struct minimal_symbol *msym; |
c906108c | 1794 | |
bccdca4a UW |
1795 | /* First, check whether a minimal symbol with the same name exists |
1796 | and points to the same address. The address check is required | |
1797 | e.g. on PowerPC64, where the minimal symbol for a function will | |
1798 | point to the function descriptor, while the debug symbol will | |
1799 | point to the actual function code. */ | |
49c1de0e | 1800 | msym = lookup_minimal_symbol_by_pc_name (addr, sym->linkage_name (), |
4d4eaa30 | 1801 | objfile); |
907fc202 | 1802 | if (msym) |
49c1de0e | 1803 | sym->set_section_index (msym->section_index ()); |
907fc202 | 1804 | else |
19e2d14b KB |
1805 | { |
1806 | /* Static, function-local variables do appear in the linker | |
1807 | (minimal) symbols, but are frequently given names that won't | |
1808 | be found via lookup_minimal_symbol(). E.g., it has been | |
1809 | observed in frv-uclinux (ELF) executables that a static, | |
1810 | function-local variable named "foo" might appear in the | |
1811 | linker symbols as "foo.6" or "foo.3". Thus, there is no | |
1812 | point in attempting to extend the lookup-by-name mechanism to | |
1813 | handle this case due to the fact that there can be multiple | |
1814 | names. | |
9af17804 | 1815 | |
19e2d14b KB |
1816 | So, instead, search the section table when lookup by name has |
1817 | failed. The ``addr'' and ``endaddr'' fields may have already | |
6a053cb1 TT |
1818 | been relocated. If so, the relocation offset needs to be |
1819 | subtracted from these values when performing the comparison. | |
1820 | We unconditionally subtract it, because, when no relocation | |
1821 | has been performed, the value will simply be zero. | |
9af17804 | 1822 | |
19e2d14b KB |
1823 | The address of the symbol whose section we're fixing up HAS |
1824 | NOT BEEN adjusted (relocated) yet. It can't have been since | |
1825 | the section isn't yet known and knowing the section is | |
1826 | necessary in order to add the correct relocation value. In | |
1827 | other words, we wouldn't even be in this function (attempting | |
1828 | to compute the section) if it were already known. | |
1829 | ||
1830 | Note that it is possible to search the minimal symbols | |
1831 | (subtracting the relocation value if necessary) to find the | |
1832 | matching minimal symbol, but this is overkill and much less | |
1833 | efficient. It is not necessary to find the matching minimal | |
9af17804 DE |
1834 | symbol, only its section. |
1835 | ||
19e2d14b KB |
1836 | Note that this technique (of doing a section table search) |
1837 | can fail when unrelocated section addresses overlap. For | |
1838 | this reason, we still attempt a lookup by name prior to doing | |
1839 | a search of the section table. */ | |
9af17804 | 1840 | |
5250cbc8 | 1841 | for (obj_section *s : objfile->sections ()) |
19e2d14b | 1842 | { |
49c1de0e TT |
1843 | if ((bfd_section_flags (s->the_bfd_section) & SEC_ALLOC) == 0) |
1844 | continue; | |
1845 | ||
9ed8433a | 1846 | int idx = s - objfile->sections_start; |
6a053cb1 | 1847 | CORE_ADDR offset = objfile->section_offsets[idx]; |
19e2d14b | 1848 | |
e27d198c TT |
1849 | if (fallback == -1) |
1850 | fallback = idx; | |
1851 | ||
0c1bcd23 | 1852 | if (s->addr () - offset <= addr && addr < s->endaddr () - offset) |
19e2d14b | 1853 | { |
49c1de0e | 1854 | sym->set_section_index (idx); |
19e2d14b KB |
1855 | return; |
1856 | } | |
1857 | } | |
e27d198c TT |
1858 | |
1859 | /* If we didn't find the section, assume it is in the first | |
1860 | section. If there is no allocated section, then it hardly | |
1861 | matters what we pick, so just pick zero. */ | |
1862 | if (fallback == -1) | |
49c1de0e | 1863 | sym->set_section_index (0); |
e27d198c | 1864 | else |
49c1de0e | 1865 | sym->set_section_index (fallback); |
19e2d14b | 1866 | } |
c906108c SS |
1867 | } |
1868 | ||
b5ec771e PA |
1869 | /* See symtab.h. */ |
1870 | ||
1871 | demangle_for_lookup_info::demangle_for_lookup_info | |
1872 | (const lookup_name_info &lookup_name, language lang) | |
1873 | { | |
1874 | demangle_result_storage storage; | |
1875 | ||
c62446b1 PA |
1876 | if (lookup_name.ignore_parameters () && lang == language_cplus) |
1877 | { | |
1878 | gdb::unique_xmalloc_ptr<char> without_params | |
e0802d59 | 1879 | = cp_remove_params_if_any (lookup_name.c_str (), |
c62446b1 PA |
1880 | lookup_name.completion_mode ()); |
1881 | ||
1882 | if (without_params != NULL) | |
1883 | { | |
de63c46b PA |
1884 | if (lookup_name.match_type () != symbol_name_match_type::SEARCH_NAME) |
1885 | m_demangled_name = demangle_for_lookup (without_params.get (), | |
1886 | lang, storage); | |
c62446b1 PA |
1887 | return; |
1888 | } | |
1889 | } | |
1890 | ||
de63c46b | 1891 | if (lookup_name.match_type () == symbol_name_match_type::SEARCH_NAME) |
e0802d59 | 1892 | m_demangled_name = lookup_name.c_str (); |
de63c46b | 1893 | else |
e0802d59 | 1894 | m_demangled_name = demangle_for_lookup (lookup_name.c_str (), |
de63c46b | 1895 | lang, storage); |
b5ec771e PA |
1896 | } |
1897 | ||
1898 | /* See symtab.h. */ | |
1899 | ||
1900 | const lookup_name_info & | |
1901 | lookup_name_info::match_any () | |
1902 | { | |
1903 | /* Lookup any symbol that "" would complete. I.e., this matches all | |
1904 | symbol names. */ | |
e0802d59 | 1905 | static const lookup_name_info lookup_name ("", symbol_name_match_type::FULL, |
b5ec771e PA |
1906 | true); |
1907 | ||
1908 | return lookup_name; | |
1909 | } | |
1910 | ||
f8eba3c6 | 1911 | /* Compute the demangled form of NAME as used by the various symbol |
2f408ecb PA |
1912 | lookup functions. The result can either be the input NAME |
1913 | directly, or a pointer to a buffer owned by the STORAGE object. | |
f8eba3c6 | 1914 | |
2f408ecb | 1915 | For Ada, this function just returns NAME, unmodified. |
f8eba3c6 TT |
1916 | Normally, Ada symbol lookups are performed using the encoded name |
1917 | rather than the demangled name, and so it might seem to make sense | |
1918 | for this function to return an encoded version of NAME. | |
1919 | Unfortunately, we cannot do this, because this function is used in | |
1920 | circumstances where it is not appropriate to try to encode NAME. | |
1921 | For instance, when displaying the frame info, we demangle the name | |
1922 | of each parameter, and then perform a symbol lookup inside our | |
1923 | function using that demangled name. In Ada, certain functions | |
1924 | have internally-generated parameters whose name contain uppercase | |
1925 | characters. Encoding those name would result in those uppercase | |
1926 | characters to become lowercase, and thus cause the symbol lookup | |
1927 | to fail. */ | |
c906108c | 1928 | |
2f408ecb | 1929 | const char * |
f8eba3c6 | 1930 | demangle_for_lookup (const char *name, enum language lang, |
2f408ecb | 1931 | demangle_result_storage &storage) |
c906108c | 1932 | { |
9c37b5ae | 1933 | /* If we are using C++, D, or Go, demangle the name before doing a |
c378eb4e | 1934 | lookup, so we can always binary search. */ |
53c5240f | 1935 | if (lang == language_cplus) |
729051e6 | 1936 | { |
3456e70c TT |
1937 | gdb::unique_xmalloc_ptr<char> demangled_name |
1938 | = gdb_demangle (name, DMGL_ANSI | DMGL_PARAMS); | |
2f408ecb | 1939 | if (demangled_name != NULL) |
3456e70c | 1940 | return storage.set_malloc_ptr (std::move (demangled_name)); |
2f408ecb PA |
1941 | |
1942 | /* If we were given a non-mangled name, canonicalize it | |
1943 | according to the language (so far only for C++). */ | |
596dc4ad TT |
1944 | gdb::unique_xmalloc_ptr<char> canon = cp_canonicalize_string (name); |
1945 | if (canon != nullptr) | |
1946 | return storage.set_malloc_ptr (std::move (canon)); | |
729051e6 | 1947 | } |
6aecb9c2 JB |
1948 | else if (lang == language_d) |
1949 | { | |
3456e70c | 1950 | gdb::unique_xmalloc_ptr<char> demangled_name = d_demangle (name, 0); |
2f408ecb | 1951 | if (demangled_name != NULL) |
3456e70c | 1952 | return storage.set_malloc_ptr (std::move (demangled_name)); |
6aecb9c2 | 1953 | } |
a766d390 DE |
1954 | else if (lang == language_go) |
1955 | { | |
3456e70c | 1956 | gdb::unique_xmalloc_ptr<char> demangled_name |
82fc57fd | 1957 | = language_def (language_go)->demangle_symbol (name, 0); |
2f408ecb | 1958 | if (demangled_name != NULL) |
3456e70c | 1959 | return storage.set_malloc_ptr (std::move (demangled_name)); |
a766d390 | 1960 | } |
729051e6 | 1961 | |
2f408ecb | 1962 | return name; |
f8eba3c6 TT |
1963 | } |
1964 | ||
5ffa0793 PA |
1965 | /* See symtab.h. */ |
1966 | ||
1967 | unsigned int | |
1968 | search_name_hash (enum language language, const char *search_name) | |
1969 | { | |
fb8006fd | 1970 | return language_def (language)->search_name_hash (search_name); |
5ffa0793 PA |
1971 | } |
1972 | ||
cf901d3b | 1973 | /* See symtab.h. |
f8eba3c6 | 1974 | |
cf901d3b | 1975 | This function (or rather its subordinates) have a bunch of loops and |
7e082072 DE |
1976 | it would seem to be attractive to put in some QUIT's (though I'm not really |
1977 | sure whether it can run long enough to be really important). But there | |
f8eba3c6 | 1978 | are a few calls for which it would appear to be bad news to quit |
7e082072 | 1979 | out of here: e.g., find_proc_desc in alpha-mdebug-tdep.c. (Note |
f8eba3c6 TT |
1980 | that there is C++ code below which can error(), but that probably |
1981 | doesn't affect these calls since they are looking for a known | |
1982 | variable and thus can probably assume it will never hit the C++ | |
1983 | code). */ | |
1984 | ||
d12307c1 | 1985 | struct block_symbol |
f8eba3c6 TT |
1986 | lookup_symbol_in_language (const char *name, const struct block *block, |
1987 | const domain_enum domain, enum language lang, | |
1993b719 | 1988 | struct field_of_this_result *is_a_field_of_this) |
f8eba3c6 | 1989 | { |
2698da26 AB |
1990 | SYMBOL_LOOKUP_SCOPED_DEBUG_ENTER_EXIT; |
1991 | ||
2f408ecb PA |
1992 | demangle_result_storage storage; |
1993 | const char *modified_name = demangle_for_lookup (name, lang, storage); | |
f8eba3c6 | 1994 | |
de63c46b PA |
1995 | return lookup_symbol_aux (modified_name, |
1996 | symbol_name_match_type::FULL, | |
1997 | block, domain, lang, | |
2f408ecb | 1998 | is_a_field_of_this); |
fba7f19c EZ |
1999 | } |
2000 | ||
cf901d3b | 2001 | /* See symtab.h. */ |
53c5240f | 2002 | |
d12307c1 | 2003 | struct block_symbol |
53c5240f | 2004 | lookup_symbol (const char *name, const struct block *block, |
1993b719 TT |
2005 | domain_enum domain, |
2006 | struct field_of_this_result *is_a_field_of_this) | |
53c5240f PA |
2007 | { |
2008 | return lookup_symbol_in_language (name, block, domain, | |
2009 | current_language->la_language, | |
2570f2b7 | 2010 | is_a_field_of_this); |
53c5240f PA |
2011 | } |
2012 | ||
cf901d3b | 2013 | /* See symtab.h. */ |
66a17cb6 | 2014 | |
de63c46b PA |
2015 | struct block_symbol |
2016 | lookup_symbol_search_name (const char *search_name, const struct block *block, | |
2017 | domain_enum domain) | |
2018 | { | |
2019 | return lookup_symbol_aux (search_name, symbol_name_match_type::SEARCH_NAME, | |
2020 | block, domain, language_asm, NULL); | |
2021 | } | |
2022 | ||
2023 | /* See symtab.h. */ | |
2024 | ||
d12307c1 | 2025 | struct block_symbol |
66a17cb6 TT |
2026 | lookup_language_this (const struct language_defn *lang, |
2027 | const struct block *block) | |
2028 | { | |
5bae7c4e | 2029 | if (lang->name_of_this () == NULL || block == NULL) |
6640a367 | 2030 | return {}; |
66a17cb6 | 2031 | |
b1e678d9 AB |
2032 | symbol_lookup_debug_printf_v ("lookup_language_this (%s, %s (objfile %s))", |
2033 | lang->name (), host_address_to_string (block), | |
46baa3c6 | 2034 | objfile_debug_name (block->objfile ())); |
cc485e62 | 2035 | |
03de6823 | 2036 | while (block) |
66a17cb6 TT |
2037 | { |
2038 | struct symbol *sym; | |
2039 | ||
5bae7c4e | 2040 | sym = block_lookup_symbol (block, lang->name_of_this (), |
de63c46b PA |
2041 | symbol_name_match_type::SEARCH_NAME, |
2042 | VAR_DOMAIN); | |
66a17cb6 | 2043 | if (sym != NULL) |
f149aabd | 2044 | { |
b1e678d9 AB |
2045 | symbol_lookup_debug_printf_v |
2046 | ("lookup_language_this (...) = %s (%s, block %s)", | |
2047 | sym->print_name (), host_address_to_string (sym), | |
2048 | host_address_to_string (block)); | |
d12307c1 | 2049 | return (struct block_symbol) {sym, block}; |
f149aabd | 2050 | } |
6c00f721 | 2051 | if (block->function ()) |
03de6823 | 2052 | break; |
f135fe72 | 2053 | block = block->superblock (); |
66a17cb6 | 2054 | } |
03de6823 | 2055 | |
b1e678d9 | 2056 | symbol_lookup_debug_printf_v ("lookup_language_this (...) = NULL"); |
6640a367 | 2057 | return {}; |
66a17cb6 TT |
2058 | } |
2059 | ||
2dc3df72 TT |
2060 | /* Given TYPE, a structure/union, |
2061 | return 1 if the component named NAME from the ultimate target | |
2062 | structure/union is defined, otherwise, return 0. */ | |
2063 | ||
2064 | static int | |
1993b719 TT |
2065 | check_field (struct type *type, const char *name, |
2066 | struct field_of_this_result *is_a_field_of_this) | |
2dc3df72 TT |
2067 | { |
2068 | int i; | |
2069 | ||
2070 | /* The type may be a stub. */ | |
f168693b | 2071 | type = check_typedef (type); |
2dc3df72 | 2072 | |
1f704f76 | 2073 | for (i = type->num_fields () - 1; i >= TYPE_N_BASECLASSES (type); i--) |
2dc3df72 | 2074 | { |
33d16dd9 | 2075 | const char *t_field_name = type->field (i).name (); |
2dc3df72 TT |
2076 | |
2077 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) | |
1993b719 TT |
2078 | { |
2079 | is_a_field_of_this->type = type; | |
ceacbf6e | 2080 | is_a_field_of_this->field = &type->field (i); |
1993b719 TT |
2081 | return 1; |
2082 | } | |
2dc3df72 TT |
2083 | } |
2084 | ||
2085 | /* C++: If it was not found as a data field, then try to return it | |
2086 | as a pointer to a method. */ | |
2087 | ||
2088 | for (i = TYPE_NFN_FIELDS (type) - 1; i >= 0; --i) | |
2089 | { | |
2090 | if (strcmp_iw (TYPE_FN_FIELDLIST_NAME (type, i), name) == 0) | |
1993b719 TT |
2091 | { |
2092 | is_a_field_of_this->type = type; | |
2093 | is_a_field_of_this->fn_field = &TYPE_FN_FIELDLIST (type, i); | |
2094 | return 1; | |
2095 | } | |
2dc3df72 TT |
2096 | } |
2097 | ||
2098 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1993b719 | 2099 | if (check_field (TYPE_BASECLASS (type, i), name, is_a_field_of_this)) |
2dc3df72 TT |
2100 | return 1; |
2101 | ||
2102 | return 0; | |
2103 | } | |
2104 | ||
53c5240f | 2105 | /* Behave like lookup_symbol except that NAME is the natural name |
7e082072 | 2106 | (e.g., demangled name) of the symbol that we're looking for. */ |
5ad1c190 | 2107 | |
d12307c1 | 2108 | static struct block_symbol |
de63c46b PA |
2109 | lookup_symbol_aux (const char *name, symbol_name_match_type match_type, |
2110 | const struct block *block, | |
94af9270 | 2111 | const domain_enum domain, enum language language, |
1993b719 | 2112 | struct field_of_this_result *is_a_field_of_this) |
fba7f19c | 2113 | { |
2698da26 AB |
2114 | SYMBOL_LOOKUP_SCOPED_DEBUG_ENTER_EXIT; |
2115 | ||
d12307c1 | 2116 | struct block_symbol result; |
53c5240f | 2117 | const struct language_defn *langdef; |
406bc4de | 2118 | |
cc485e62 DE |
2119 | if (symbol_lookup_debug) |
2120 | { | |
d6bc0792 | 2121 | struct objfile *objfile = (block == nullptr |
46baa3c6 | 2122 | ? nullptr : block->objfile ()); |
cc485e62 | 2123 | |
b1e678d9 AB |
2124 | symbol_lookup_debug_printf |
2125 | ("demangled symbol name = \"%s\", block @ %s (objfile %s)", | |
2126 | name, host_address_to_string (block), | |
2127 | objfile != NULL ? objfile_debug_name (objfile) : "NULL"); | |
2128 | symbol_lookup_debug_printf | |
2129 | ("domain name = \"%s\", language = \"%s\")", | |
2130 | domain_name (domain), language_str (language)); | |
cc485e62 DE |
2131 | } |
2132 | ||
9a146a11 EZ |
2133 | /* Make sure we do something sensible with is_a_field_of_this, since |
2134 | the callers that set this parameter to some non-null value will | |
1993b719 TT |
2135 | certainly use it later. If we don't set it, the contents of |
2136 | is_a_field_of_this are undefined. */ | |
9a146a11 | 2137 | if (is_a_field_of_this != NULL) |
1993b719 | 2138 | memset (is_a_field_of_this, 0, sizeof (*is_a_field_of_this)); |
9a146a11 | 2139 | |
e4051eeb DC |
2140 | /* Search specified block and its superiors. Don't search |
2141 | STATIC_BLOCK or GLOBAL_BLOCK. */ | |
c906108c | 2142 | |
de63c46b | 2143 | result = lookup_local_symbol (name, match_type, block, domain, language); |
d12307c1 | 2144 | if (result.symbol != NULL) |
cc485e62 | 2145 | { |
b1e678d9 AB |
2146 | symbol_lookup_debug_printf |
2147 | ("found symbol @ %s (using lookup_local_symbol)", | |
2148 | host_address_to_string (result.symbol)); | |
d12307c1 | 2149 | return result; |
cc485e62 | 2150 | } |
c906108c | 2151 | |
53c5240f | 2152 | /* If requested to do so by the caller and if appropriate for LANGUAGE, |
13387711 | 2153 | check to see if NAME is a field of `this'. */ |
53c5240f PA |
2154 | |
2155 | langdef = language_def (language); | |
5f9a71c3 | 2156 | |
6592e36f TT |
2157 | /* Don't do this check if we are searching for a struct. It will |
2158 | not be found by check_field, but will be found by other | |
2159 | means. */ | |
2160 | if (is_a_field_of_this != NULL && domain != STRUCT_DOMAIN) | |
c906108c | 2161 | { |
d12307c1 | 2162 | result = lookup_language_this (langdef, block); |
2b2d9e11 | 2163 | |
d12307c1 | 2164 | if (result.symbol) |
c906108c | 2165 | { |
5f9c5a63 | 2166 | struct type *t = result.symbol->type (); |
9af17804 | 2167 | |
2b2d9e11 VP |
2168 | /* I'm not really sure that type of this can ever |
2169 | be typedefed; just be safe. */ | |
f168693b | 2170 | t = check_typedef (t); |
809f3be1 | 2171 | if (t->is_pointer_or_reference ()) |
27710edb | 2172 | t = t->target_type (); |
9af17804 | 2173 | |
78134374 SM |
2174 | if (t->code () != TYPE_CODE_STRUCT |
2175 | && t->code () != TYPE_CODE_UNION) | |
9af17804 | 2176 | error (_("Internal error: `%s' is not an aggregate"), |
5bae7c4e | 2177 | langdef->name_of_this ()); |
9af17804 | 2178 | |
1993b719 | 2179 | if (check_field (t, name, is_a_field_of_this)) |
cc485e62 | 2180 | { |
b1e678d9 | 2181 | symbol_lookup_debug_printf ("no symbol found"); |
6640a367 | 2182 | return {}; |
cc485e62 | 2183 | } |
c906108c SS |
2184 | } |
2185 | } | |
2186 | ||
53c5240f | 2187 | /* Now do whatever is appropriate for LANGUAGE to look |
774b6a14 | 2188 | up static and global variables. */ |
c906108c | 2189 | |
a78a19b1 | 2190 | result = langdef->lookup_symbol_nonlocal (name, block, domain); |
d12307c1 | 2191 | if (result.symbol != NULL) |
cc485e62 | 2192 | { |
b1e678d9 AB |
2193 | symbol_lookup_debug_printf |
2194 | ("found symbol @ %s (using language lookup_symbol_nonlocal)", | |
2195 | host_address_to_string (result.symbol)); | |
d12307c1 | 2196 | return result; |
cc485e62 | 2197 | } |
c906108c | 2198 | |
774b6a14 TT |
2199 | /* Now search all static file-level symbols. Not strictly correct, |
2200 | but more useful than an error. */ | |
41f62f39 | 2201 | |
d12307c1 | 2202 | result = lookup_static_symbol (name, domain); |
b1e678d9 AB |
2203 | symbol_lookup_debug_printf |
2204 | ("found symbol @ %s (using lookup_static_symbol)", | |
2205 | result.symbol != NULL ? host_address_to_string (result.symbol) : "NULL"); | |
d12307c1 | 2206 | return result; |
41f62f39 JK |
2207 | } |
2208 | ||
e4051eeb | 2209 | /* Check to see if the symbol is defined in BLOCK or its superiors. |
89a9d1b1 | 2210 | Don't search STATIC_BLOCK or GLOBAL_BLOCK. */ |
8155455b | 2211 | |
d12307c1 | 2212 | static struct block_symbol |
de63c46b PA |
2213 | lookup_local_symbol (const char *name, |
2214 | symbol_name_match_type match_type, | |
2215 | const struct block *block, | |
74016e12 DE |
2216 | const domain_enum domain, |
2217 | enum language language) | |
8155455b | 2218 | { |
78004096 TT |
2219 | if (block == nullptr) |
2220 | return {}; | |
2221 | ||
8155455b | 2222 | struct symbol *sym; |
d24e14a0 | 2223 | const struct block *static_block = block->static_block (); |
3c45e9f9 | 2224 | const char *scope = block->scope (); |
13387711 | 2225 | |
78004096 TT |
2226 | /* Check if it's a global block. */ |
2227 | if (static_block == nullptr) | |
6640a367 | 2228 | return {}; |
e4051eeb | 2229 | |
89a9d1b1 | 2230 | while (block != static_block) |
f61e8913 | 2231 | { |
de63c46b | 2232 | sym = lookup_symbol_in_block (name, match_type, block, domain); |
f61e8913 | 2233 | if (sym != NULL) |
d12307c1 | 2234 | return (struct block_symbol) {sym, block}; |
edb3359d | 2235 | |
f55ee35c | 2236 | if (language == language_cplus || language == language_fortran) |
dda83cd7 SM |
2237 | { |
2238 | struct block_symbol blocksym | |
d12307c1 PMR |
2239 | = cp_lookup_symbol_imports_or_template (scope, name, block, |
2240 | domain); | |
2241 | ||
dda83cd7 SM |
2242 | if (blocksym.symbol != NULL) |
2243 | return blocksym; | |
2244 | } | |
13387711 | 2245 | |
a4dfe747 | 2246 | if (block->function () != NULL && block->inlined_p ()) |
edb3359d | 2247 | break; |
f135fe72 | 2248 | block = block->superblock (); |
f61e8913 DC |
2249 | } |
2250 | ||
3aee438b | 2251 | /* We've reached the end of the function without finding a result. */ |
e4051eeb | 2252 | |
6640a367 | 2253 | return {}; |
f61e8913 DC |
2254 | } |
2255 | ||
cf901d3b | 2256 | /* See symtab.h. */ |
3a40aaa0 | 2257 | |
5f9a71c3 | 2258 | struct symbol * |
de63c46b PA |
2259 | lookup_symbol_in_block (const char *name, symbol_name_match_type match_type, |
2260 | const struct block *block, | |
d1a2d36d | 2261 | const domain_enum domain) |
f61e8913 DC |
2262 | { |
2263 | struct symbol *sym; | |
f61e8913 | 2264 | |
b1e678d9 | 2265 | if (symbol_lookup_debug) |
cc485e62 | 2266 | { |
b1e678d9 | 2267 | struct objfile *objfile |
46baa3c6 | 2268 | = block == nullptr ? nullptr : block->objfile (); |
cc485e62 | 2269 | |
b1e678d9 AB |
2270 | symbol_lookup_debug_printf_v |
2271 | ("lookup_symbol_in_block (%s, %s (objfile %s), %s)", | |
2272 | name, host_address_to_string (block), | |
2273 | objfile != nullptr ? objfile_debug_name (objfile) : "NULL", | |
2274 | domain_name (domain)); | |
cc485e62 DE |
2275 | } |
2276 | ||
de63c46b | 2277 | sym = block_lookup_symbol (block, name, match_type, domain); |
f61e8913 | 2278 | if (sym) |
8155455b | 2279 | { |
b1e678d9 AB |
2280 | symbol_lookup_debug_printf_v ("lookup_symbol_in_block (...) = %s", |
2281 | host_address_to_string (sym)); | |
dae58e04 | 2282 | return sym; |
8155455b DC |
2283 | } |
2284 | ||
b1e678d9 | 2285 | symbol_lookup_debug_printf_v ("lookup_symbol_in_block (...) = NULL"); |
8155455b DC |
2286 | return NULL; |
2287 | } | |
2288 | ||
cf901d3b | 2289 | /* See symtab.h. */ |
3a40aaa0 | 2290 | |
d12307c1 | 2291 | struct block_symbol |
efad9b6a | 2292 | lookup_global_symbol_from_objfile (struct objfile *main_objfile, |
442853af | 2293 | enum block_enum block_index, |
3a40aaa0 | 2294 | const char *name, |
21b556f4 | 2295 | const domain_enum domain) |
3a40aaa0 | 2296 | { |
442853af CB |
2297 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2298 | ||
bde09ab7 | 2299 | for (objfile *objfile : main_objfile->separate_debug_objfiles ()) |
15d123c9 | 2300 | { |
d12307c1 | 2301 | struct block_symbol result |
dda83cd7 | 2302 | = lookup_symbol_in_objfile (objfile, block_index, name, domain); |
15d123c9 | 2303 | |
442853af | 2304 | if (result.symbol != nullptr) |
d12307c1 | 2305 | return result; |
15d123c9 | 2306 | } |
56e3f43c | 2307 | |
6640a367 | 2308 | return {}; |
3a40aaa0 UW |
2309 | } |
2310 | ||
19630284 JB |
2311 | /* Check to see if the symbol is defined in one of the OBJFILE's |
2312 | symtabs. BLOCK_INDEX should be either GLOBAL_BLOCK or STATIC_BLOCK, | |
8155455b DC |
2313 | depending on whether or not we want to search global symbols or |
2314 | static symbols. */ | |
2315 | ||
d12307c1 | 2316 | static struct block_symbol |
c32e6a04 CB |
2317 | lookup_symbol_in_objfile_symtabs (struct objfile *objfile, |
2318 | enum block_enum block_index, const char *name, | |
2319 | const domain_enum domain) | |
19630284 | 2320 | { |
ba715d7f JK |
2321 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2322 | ||
b1e678d9 AB |
2323 | symbol_lookup_debug_printf_v |
2324 | ("lookup_symbol_in_objfile_symtabs (%s, %s, %s, %s)", | |
2325 | objfile_debug_name (objfile), | |
2326 | block_index == GLOBAL_BLOCK ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
2327 | name, domain_name (domain)); | |
cc485e62 | 2328 | |
de82891c TV |
2329 | struct block_symbol other; |
2330 | other.symbol = NULL; | |
b669c953 | 2331 | for (compunit_symtab *cust : objfile->compunits ()) |
a743abeb | 2332 | { |
43f3e411 DE |
2333 | const struct blockvector *bv; |
2334 | const struct block *block; | |
d12307c1 | 2335 | struct block_symbol result; |
43f3e411 | 2336 | |
af39c5c8 | 2337 | bv = cust->blockvector (); |
63d609de | 2338 | block = bv->block (block_index); |
d12307c1 PMR |
2339 | result.symbol = block_lookup_symbol_primary (block, name, domain); |
2340 | result.block = block; | |
de82891c TV |
2341 | if (result.symbol == NULL) |
2342 | continue; | |
2343 | if (best_symbol (result.symbol, domain)) | |
a743abeb | 2344 | { |
de82891c TV |
2345 | other = result; |
2346 | break; | |
2347 | } | |
911e1e79 | 2348 | if (result.symbol->matches (domain)) |
de82891c TV |
2349 | { |
2350 | struct symbol *better | |
2351 | = better_symbol (other.symbol, result.symbol, domain); | |
2352 | if (better != other.symbol) | |
cc485e62 | 2353 | { |
de82891c TV |
2354 | other.symbol = better; |
2355 | other.block = block; | |
cc485e62 | 2356 | } |
de82891c TV |
2357 | } |
2358 | } | |
d12307c1 | 2359 | |
de82891c TV |
2360 | if (other.symbol != NULL) |
2361 | { | |
b1e678d9 AB |
2362 | symbol_lookup_debug_printf_v |
2363 | ("lookup_symbol_in_objfile_symtabs (...) = %s (block %s)", | |
2364 | host_address_to_string (other.symbol), | |
2365 | host_address_to_string (other.block)); | |
de82891c | 2366 | return other; |
a743abeb | 2367 | } |
19630284 | 2368 | |
b1e678d9 AB |
2369 | symbol_lookup_debug_printf_v |
2370 | ("lookup_symbol_in_objfile_symtabs (...) = NULL"); | |
6640a367 | 2371 | return {}; |
19630284 JB |
2372 | } |
2373 | ||
74016e12 | 2374 | /* Wrapper around lookup_symbol_in_objfile_symtabs for search_symbols. |
422d65e7 | 2375 | Look up LINKAGE_NAME in DOMAIN in the global and static blocks of OBJFILE |
01465b56 DE |
2376 | and all associated separate debug objfiles. |
2377 | ||
2378 | Normally we only look in OBJFILE, and not any separate debug objfiles | |
2379 | because the outer loop will cause them to be searched too. This case is | |
2380 | different. Here we're called from search_symbols where it will only | |
6471e7d2 | 2381 | call us for the objfile that contains a matching minsym. */ |
422d65e7 | 2382 | |
d12307c1 | 2383 | static struct block_symbol |
422d65e7 DE |
2384 | lookup_symbol_in_objfile_from_linkage_name (struct objfile *objfile, |
2385 | const char *linkage_name, | |
2386 | domain_enum domain) | |
2387 | { | |
2388 | enum language lang = current_language->la_language; | |
e9ad22ee | 2389 | struct objfile *main_objfile; |
422d65e7 | 2390 | |
2f408ecb PA |
2391 | demangle_result_storage storage; |
2392 | const char *modified_name = demangle_for_lookup (linkage_name, lang, storage); | |
2393 | ||
422d65e7 DE |
2394 | if (objfile->separate_debug_objfile_backlink) |
2395 | main_objfile = objfile->separate_debug_objfile_backlink; | |
2396 | else | |
2397 | main_objfile = objfile; | |
2398 | ||
bde09ab7 | 2399 | for (::objfile *cur_objfile : main_objfile->separate_debug_objfiles ()) |
422d65e7 | 2400 | { |
d12307c1 PMR |
2401 | struct block_symbol result; |
2402 | ||
2403 | result = lookup_symbol_in_objfile_symtabs (cur_objfile, GLOBAL_BLOCK, | |
2404 | modified_name, domain); | |
2405 | if (result.symbol == NULL) | |
2406 | result = lookup_symbol_in_objfile_symtabs (cur_objfile, STATIC_BLOCK, | |
2407 | modified_name, domain); | |
2408 | if (result.symbol != NULL) | |
2f408ecb | 2409 | return result; |
422d65e7 DE |
2410 | } |
2411 | ||
6640a367 | 2412 | return {}; |
422d65e7 DE |
2413 | } |
2414 | ||
08c23b0d TT |
2415 | /* A helper function that throws an exception when a symbol was found |
2416 | in a psymtab but not in a symtab. */ | |
2417 | ||
2418 | static void ATTRIBUTE_NORETURN | |
ddbcedf5 | 2419 | error_in_psymtab_expansion (enum block_enum block_index, const char *name, |
43f3e411 | 2420 | struct compunit_symtab *cust) |
08c23b0d TT |
2421 | { |
2422 | error (_("\ | |
2423 | Internal: %s symbol `%s' found in %s psymtab but not in symtab.\n\ | |
2424 | %s may be an inlined function, or may be a template function\n \ | |
2425 | (if a template, try specifying an instantiation: %s<type>)."), | |
f88cb4b6 | 2426 | block_index == GLOBAL_BLOCK ? "global" : "static", |
43f3e411 | 2427 | name, |
0b17a4f7 | 2428 | symtab_to_filename_for_display (cust->primary_filetab ()), |
43f3e411 | 2429 | name, name); |
08c23b0d TT |
2430 | } |
2431 | ||
74016e12 DE |
2432 | /* A helper function for various lookup routines that interfaces with |
2433 | the "quick" symbol table functions. */ | |
8155455b | 2434 | |
d12307c1 | 2435 | static struct block_symbol |
ddbcedf5 CB |
2436 | lookup_symbol_via_quick_fns (struct objfile *objfile, |
2437 | enum block_enum block_index, const char *name, | |
2438 | const domain_enum domain) | |
8155455b | 2439 | { |
43f3e411 | 2440 | struct compunit_symtab *cust; |
346d1dfe | 2441 | const struct blockvector *bv; |
8155455b | 2442 | const struct block *block; |
d12307c1 | 2443 | struct block_symbol result; |
8155455b | 2444 | |
b1e678d9 AB |
2445 | symbol_lookup_debug_printf_v |
2446 | ("lookup_symbol_via_quick_fns (%s, %s, %s, %s)", | |
2447 | objfile_debug_name (objfile), | |
2448 | block_index == GLOBAL_BLOCK ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
2449 | name, domain_name (domain)); | |
cc485e62 | 2450 | |
4d080b46 | 2451 | cust = objfile->lookup_symbol (block_index, name, domain); |
43f3e411 | 2452 | if (cust == NULL) |
cc485e62 | 2453 | { |
b1e678d9 AB |
2454 | symbol_lookup_debug_printf_v |
2455 | ("lookup_symbol_via_quick_fns (...) = NULL"); | |
6640a367 | 2456 | return {}; |
cc485e62 | 2457 | } |
8155455b | 2458 | |
af39c5c8 | 2459 | bv = cust->blockvector (); |
63d609de | 2460 | block = bv->block (block_index); |
de63c46b PA |
2461 | result.symbol = block_lookup_symbol (block, name, |
2462 | symbol_name_match_type::FULL, domain); | |
d12307c1 | 2463 | if (result.symbol == NULL) |
43f3e411 | 2464 | error_in_psymtab_expansion (block_index, name, cust); |
cc485e62 | 2465 | |
b1e678d9 AB |
2466 | symbol_lookup_debug_printf_v |
2467 | ("lookup_symbol_via_quick_fns (...) = %s (block %s)", | |
2468 | host_address_to_string (result.symbol), | |
2469 | host_address_to_string (block)); | |
cc485e62 | 2470 | |
d12307c1 PMR |
2471 | result.block = block; |
2472 | return result; | |
8155455b DC |
2473 | } |
2474 | ||
a78a19b1 | 2475 | /* See language.h. */ |
5f9a71c3 | 2476 | |
d12307c1 | 2477 | struct block_symbol |
a78a19b1 AB |
2478 | language_defn::lookup_symbol_nonlocal (const char *name, |
2479 | const struct block *block, | |
2480 | const domain_enum domain) const | |
5f9a71c3 | 2481 | { |
d12307c1 | 2482 | struct block_symbol result; |
5f9a71c3 | 2483 | |
d9060ba6 DE |
2484 | /* NOTE: dje/2014-10-26: The lookup in all objfiles search could skip |
2485 | the current objfile. Searching the current objfile first is useful | |
2486 | for both matching user expectations as well as performance. */ | |
2487 | ||
d12307c1 PMR |
2488 | result = lookup_symbol_in_static_block (name, block, domain); |
2489 | if (result.symbol != NULL) | |
2490 | return result; | |
5f9a71c3 | 2491 | |
1994afbf DE |
2492 | /* If we didn't find a definition for a builtin type in the static block, |
2493 | search for it now. This is actually the right thing to do and can be | |
2494 | a massive performance win. E.g., when debugging a program with lots of | |
2495 | shared libraries we could search all of them only to find out the | |
2496 | builtin type isn't defined in any of them. This is common for types | |
2497 | like "void". */ | |
2498 | if (domain == VAR_DOMAIN) | |
2499 | { | |
2500 | struct gdbarch *gdbarch; | |
2501 | ||
2502 | if (block == NULL) | |
99d9c3b9 | 2503 | gdbarch = current_inferior ()->arch (); |
1994afbf | 2504 | else |
7f5937df | 2505 | gdbarch = block->gdbarch (); |
a78a19b1 | 2506 | result.symbol = language_lookup_primitive_type_as_symbol (this, |
d12307c1 PMR |
2507 | gdbarch, name); |
2508 | result.block = NULL; | |
2509 | if (result.symbol != NULL) | |
2510 | return result; | |
1994afbf DE |
2511 | } |
2512 | ||
08724ab7 | 2513 | return lookup_global_symbol (name, block, domain); |
5f9a71c3 DC |
2514 | } |
2515 | ||
cf901d3b | 2516 | /* See symtab.h. */ |
5f9a71c3 | 2517 | |
d12307c1 | 2518 | struct block_symbol |
24d864bb DE |
2519 | lookup_symbol_in_static_block (const char *name, |
2520 | const struct block *block, | |
2521 | const domain_enum domain) | |
5f9a71c3 | 2522 | { |
78004096 TT |
2523 | if (block == nullptr) |
2524 | return {}; | |
2525 | ||
d24e14a0 | 2526 | const struct block *static_block = block->static_block (); |
cc485e62 | 2527 | struct symbol *sym; |
5f9a71c3 | 2528 | |
cc485e62 | 2529 | if (static_block == NULL) |
6640a367 | 2530 | return {}; |
cc485e62 DE |
2531 | |
2532 | if (symbol_lookup_debug) | |
2533 | { | |
d6bc0792 | 2534 | struct objfile *objfile = (block == nullptr |
46baa3c6 | 2535 | ? nullptr : block->objfile ()); |
cc485e62 | 2536 | |
b1e678d9 AB |
2537 | symbol_lookup_debug_printf |
2538 | ("lookup_symbol_in_static_block (%s, %s (objfile %s), %s)", | |
2539 | name, host_address_to_string (block), | |
2540 | objfile != nullptr ? objfile_debug_name (objfile) : "NULL", | |
2541 | domain_name (domain)); | |
cc485e62 DE |
2542 | } |
2543 | ||
de63c46b PA |
2544 | sym = lookup_symbol_in_block (name, |
2545 | symbol_name_match_type::FULL, | |
2546 | static_block, domain); | |
b1e678d9 AB |
2547 | symbol_lookup_debug_printf ("lookup_symbol_in_static_block (...) = %s", |
2548 | sym != NULL | |
2549 | ? host_address_to_string (sym) : "NULL"); | |
d12307c1 | 2550 | return (struct block_symbol) {sym, static_block}; |
5f9a71c3 DC |
2551 | } |
2552 | ||
af3768e9 DE |
2553 | /* Perform the standard symbol lookup of NAME in OBJFILE: |
2554 | 1) First search expanded symtabs, and if not found | |
2555 | 2) Search the "quick" symtabs (partial or .gdb_index). | |
2556 | BLOCK_INDEX is one of GLOBAL_BLOCK or STATIC_BLOCK. */ | |
2557 | ||
d12307c1 | 2558 | static struct block_symbol |
c32e6a04 | 2559 | lookup_symbol_in_objfile (struct objfile *objfile, enum block_enum block_index, |
af3768e9 DE |
2560 | const char *name, const domain_enum domain) |
2561 | { | |
d12307c1 | 2562 | struct block_symbol result; |
af3768e9 | 2563 | |
c32e6a04 CB |
2564 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2565 | ||
b1e678d9 AB |
2566 | symbol_lookup_debug_printf ("lookup_symbol_in_objfile (%s, %s, %s, %s)", |
2567 | objfile_debug_name (objfile), | |
2568 | block_index == GLOBAL_BLOCK | |
2569 | ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
2570 | name, domain_name (domain)); | |
cc485e62 | 2571 | |
af3768e9 DE |
2572 | result = lookup_symbol_in_objfile_symtabs (objfile, block_index, |
2573 | name, domain); | |
d12307c1 | 2574 | if (result.symbol != NULL) |
af3768e9 | 2575 | { |
b1e678d9 AB |
2576 | symbol_lookup_debug_printf |
2577 | ("lookup_symbol_in_objfile (...) = %s (in symtabs)", | |
2578 | host_address_to_string (result.symbol)); | |
cc485e62 | 2579 | return result; |
af3768e9 DE |
2580 | } |
2581 | ||
cc485e62 DE |
2582 | result = lookup_symbol_via_quick_fns (objfile, block_index, |
2583 | name, domain); | |
b1e678d9 AB |
2584 | symbol_lookup_debug_printf ("lookup_symbol_in_objfile (...) = %s%s", |
2585 | result.symbol != NULL | |
2586 | ? host_address_to_string (result.symbol) | |
2587 | : "NULL", | |
2588 | result.symbol != NULL ? " (via quick fns)" | |
2589 | : ""); | |
af3768e9 DE |
2590 | return result; |
2591 | } | |
2592 | ||
9aa55206 CB |
2593 | /* This function contains the common code of lookup_{global,static}_symbol. |
2594 | OBJFILE is only used if BLOCK_INDEX is GLOBAL_SCOPE, in which case it is | |
2595 | the objfile to start the lookup in. */ | |
5f9a71c3 | 2596 | |
9aa55206 CB |
2597 | static struct block_symbol |
2598 | lookup_global_or_static_symbol (const char *name, | |
2599 | enum block_enum block_index, | |
2600 | struct objfile *objfile, | |
2601 | const domain_enum domain) | |
5f9a71c3 | 2602 | { |
f57d2163 | 2603 | struct symbol_cache *cache = get_symbol_cache (current_program_space); |
d12307c1 | 2604 | struct block_symbol result; |
f57d2163 DE |
2605 | struct block_symbol_cache *bsc; |
2606 | struct symbol_cache_slot *slot; | |
b2fb95e0 | 2607 | |
9aa55206 CB |
2608 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2609 | gdb_assert (objfile == nullptr || block_index == GLOBAL_BLOCK); | |
f57d2163 DE |
2610 | |
2611 | /* First see if we can find the symbol in the cache. | |
2612 | This works because we use the current objfile to qualify the lookup. */ | |
9aa55206 | 2613 | result = symbol_cache_lookup (cache, objfile, block_index, name, domain, |
d12307c1 PMR |
2614 | &bsc, &slot); |
2615 | if (result.symbol != NULL) | |
f57d2163 | 2616 | { |
d12307c1 | 2617 | if (SYMBOL_LOOKUP_FAILED_P (result)) |
6640a367 | 2618 | return {}; |
d12307c1 | 2619 | return result; |
f57d2163 DE |
2620 | } |
2621 | ||
626ca2c0 | 2622 | /* Do a global search (of global blocks, heh). */ |
d12307c1 | 2623 | if (result.symbol == NULL) |
6e9cd73e | 2624 | gdbarch_iterate_over_objfiles_in_search_order |
99d9c3b9 | 2625 | (objfile != NULL ? objfile->arch () : current_inferior ()->arch (), |
6e9cd73e SM |
2626 | [&result, block_index, name, domain] (struct objfile *objfile_iter) |
2627 | { | |
2628 | result = lookup_symbol_in_objfile (objfile_iter, block_index, | |
2629 | name, domain); | |
2630 | return result.symbol != nullptr; | |
2631 | }, | |
2632 | objfile); | |
6a3ca067 | 2633 | |
d12307c1 PMR |
2634 | if (result.symbol != NULL) |
2635 | symbol_cache_mark_found (bsc, slot, objfile, result.symbol, result.block); | |
f57d2163 DE |
2636 | else |
2637 | symbol_cache_mark_not_found (bsc, slot, objfile, name, domain); | |
2638 | ||
d12307c1 | 2639 | return result; |
5f9a71c3 DC |
2640 | } |
2641 | ||
9aa55206 CB |
2642 | /* See symtab.h. */ |
2643 | ||
2644 | struct block_symbol | |
2645 | lookup_static_symbol (const char *name, const domain_enum domain) | |
2646 | { | |
2647 | return lookup_global_or_static_symbol (name, STATIC_BLOCK, nullptr, domain); | |
2648 | } | |
2649 | ||
2650 | /* See symtab.h. */ | |
2651 | ||
2652 | struct block_symbol | |
2653 | lookup_global_symbol (const char *name, | |
2654 | const struct block *block, | |
2655 | const domain_enum domain) | |
2656 | { | |
d3d32391 AB |
2657 | /* If a block was passed in, we want to search the corresponding |
2658 | global block first. This yields "more expected" behavior, and is | |
2659 | needed to support 'FILENAME'::VARIABLE lookups. */ | |
8f14fd11 | 2660 | const struct block *global_block |
d24e14a0 | 2661 | = block == nullptr ? nullptr : block->global_block (); |
70bc38f5 | 2662 | symbol *sym = NULL; |
d3d32391 AB |
2663 | if (global_block != nullptr) |
2664 | { | |
70bc38f5 TV |
2665 | sym = lookup_symbol_in_block (name, |
2666 | symbol_name_match_type::FULL, | |
2667 | global_block, domain); | |
2668 | if (sym != NULL && best_symbol (sym, domain)) | |
d3d32391 AB |
2669 | return { sym, global_block }; |
2670 | } | |
2671 | ||
d6bc0792 TT |
2672 | struct objfile *objfile = nullptr; |
2673 | if (block != nullptr) | |
2674 | { | |
46baa3c6 | 2675 | objfile = block->objfile (); |
d6bc0792 TT |
2676 | if (objfile->separate_debug_objfile_backlink != nullptr) |
2677 | objfile = objfile->separate_debug_objfile_backlink; | |
2678 | } | |
2679 | ||
70bc38f5 TV |
2680 | block_symbol bs |
2681 | = lookup_global_or_static_symbol (name, GLOBAL_BLOCK, objfile, domain); | |
2682 | if (better_symbol (sym, bs.symbol, domain) == sym) | |
2683 | return { sym, global_block }; | |
2684 | else | |
2685 | return bs; | |
9aa55206 CB |
2686 | } |
2687 | ||
ececd218 | 2688 | bool |
4186eb54 KS |
2689 | symbol_matches_domain (enum language symbol_language, |
2690 | domain_enum symbol_domain, | |
2691 | domain_enum domain) | |
2692 | { | |
2693 | /* For C++ "struct foo { ... }" also defines a typedef for "foo". | |
4186eb54 KS |
2694 | Similarly, any Ada type declaration implicitly defines a typedef. */ |
2695 | if (symbol_language == language_cplus | |
2696 | || symbol_language == language_d | |
65547233 TT |
2697 | || symbol_language == language_ada |
2698 | || symbol_language == language_rust) | |
4186eb54 KS |
2699 | { |
2700 | if ((domain == VAR_DOMAIN || domain == STRUCT_DOMAIN) | |
2701 | && symbol_domain == STRUCT_DOMAIN) | |
ececd218 | 2702 | return true; |
4186eb54 KS |
2703 | } |
2704 | /* For all other languages, strict match is required. */ | |
2705 | return (symbol_domain == domain); | |
2706 | } | |
2707 | ||
cf901d3b | 2708 | /* See symtab.h. */ |
c906108c | 2709 | |
25f31e18 TT |
2710 | bool |
2711 | symbol::matches (domain_search_flags flags) const | |
2712 | { | |
2713 | if (language () != language_c | |
2714 | && language () != language_objc | |
2715 | && language () != language_opencl) | |
2716 | { | |
2717 | /* Only C languages distinguish tag and type namespaces. */ | |
2718 | if ((flags & SEARCH_TYPE_DOMAIN) != 0) | |
2719 | flags |= SEARCH_STRUCT_DOMAIN; | |
2720 | } | |
2721 | ||
2722 | if ((flags & SEARCH_FUNCTION_DOMAIN) != 0 | |
2723 | && domain () == VAR_DOMAIN | |
2724 | && aclass () == LOC_BLOCK) | |
2725 | return true; | |
2726 | ||
2727 | if ((flags & SEARCH_VAR_DOMAIN) != 0 | |
2728 | && domain () == VAR_DOMAIN) | |
2729 | return true; | |
2730 | ||
2731 | if ((flags & SEARCH_TYPE_DOMAIN) != 0 | |
2732 | && domain () == VAR_DOMAIN | |
2733 | && aclass () == LOC_TYPEDEF) | |
2734 | return true; | |
2735 | ||
2736 | if ((flags & SEARCH_STRUCT_DOMAIN) != 0 | |
2737 | && domain () == STRUCT_DOMAIN) | |
2738 | return true; | |
2739 | ||
2740 | return search_flags_matches (flags, m_domain); | |
2741 | } | |
2742 | ||
2743 | /* See symtab.h. */ | |
2744 | ||
ccefe4c4 TT |
2745 | struct type * |
2746 | lookup_transparent_type (const char *name) | |
c906108c | 2747 | { |
54f4ca46 | 2748 | return current_language->lookup_transparent_type (name); |
ccefe4c4 | 2749 | } |
9af17804 | 2750 | |
ccefe4c4 TT |
2751 | /* A helper for basic_lookup_transparent_type that interfaces with the |
2752 | "quick" symbol table functions. */ | |
357e46e7 | 2753 | |
ccefe4c4 | 2754 | static struct type * |
ddbcedf5 CB |
2755 | basic_lookup_transparent_type_quick (struct objfile *objfile, |
2756 | enum block_enum block_index, | |
ccefe4c4 TT |
2757 | const char *name) |
2758 | { | |
43f3e411 | 2759 | struct compunit_symtab *cust; |
346d1dfe | 2760 | const struct blockvector *bv; |
582942f4 | 2761 | const struct block *block; |
ccefe4c4 | 2762 | struct symbol *sym; |
c906108c | 2763 | |
4d080b46 | 2764 | cust = objfile->lookup_symbol (block_index, name, STRUCT_DOMAIN); |
43f3e411 | 2765 | if (cust == NULL) |
ccefe4c4 | 2766 | return NULL; |
c906108c | 2767 | |
af39c5c8 | 2768 | bv = cust->blockvector (); |
63d609de | 2769 | block = bv->block (block_index); |
b7a92724 TT |
2770 | |
2771 | lookup_name_info lookup_name (name, symbol_name_match_type::FULL); | |
2772 | sym = block_find_symbol (block, lookup_name, STRUCT_DOMAIN, nullptr); | |
2773 | if (sym == nullptr) | |
43f3e411 | 2774 | error_in_psymtab_expansion (block_index, name, cust); |
5f9c5a63 SM |
2775 | gdb_assert (!TYPE_IS_OPAQUE (sym->type ())); |
2776 | return sym->type (); | |
b2e2f908 | 2777 | } |
08c23b0d | 2778 | |
b2e2f908 DE |
2779 | /* Subroutine of basic_lookup_transparent_type to simplify it. |
2780 | Look up the non-opaque definition of NAME in BLOCK_INDEX of OBJFILE. | |
2781 | BLOCK_INDEX is either GLOBAL_BLOCK or STATIC_BLOCK. */ | |
2782 | ||
2783 | static struct type * | |
ddbcedf5 CB |
2784 | basic_lookup_transparent_type_1 (struct objfile *objfile, |
2785 | enum block_enum block_index, | |
b2e2f908 DE |
2786 | const char *name) |
2787 | { | |
b2e2f908 DE |
2788 | const struct blockvector *bv; |
2789 | const struct block *block; | |
2790 | const struct symbol *sym; | |
2791 | ||
b7a92724 | 2792 | lookup_name_info lookup_name (name, symbol_name_match_type::FULL); |
b669c953 | 2793 | for (compunit_symtab *cust : objfile->compunits ()) |
b2e2f908 | 2794 | { |
af39c5c8 | 2795 | bv = cust->blockvector (); |
63d609de | 2796 | block = bv->block (block_index); |
b7a92724 TT |
2797 | sym = block_find_symbol (block, lookup_name, STRUCT_DOMAIN, nullptr); |
2798 | if (sym != nullptr) | |
b2e2f908 | 2799 | { |
5f9c5a63 SM |
2800 | gdb_assert (!TYPE_IS_OPAQUE (sym->type ())); |
2801 | return sym->type (); | |
b2e2f908 DE |
2802 | } |
2803 | } | |
c906108c | 2804 | |
ccefe4c4 | 2805 | return NULL; |
b368761e | 2806 | } |
c906108c | 2807 | |
b368761e DC |
2808 | /* The standard implementation of lookup_transparent_type. This code |
2809 | was modeled on lookup_symbol -- the parts not relevant to looking | |
2810 | up types were just left out. In particular it's assumed here that | |
cf901d3b | 2811 | types are available in STRUCT_DOMAIN and only in file-static or |
b368761e | 2812 | global blocks. */ |
c906108c SS |
2813 | |
2814 | struct type * | |
b368761e | 2815 | basic_lookup_transparent_type (const char *name) |
c906108c | 2816 | { |
ccefe4c4 | 2817 | struct type *t; |
c906108c SS |
2818 | |
2819 | /* Now search all the global symbols. Do the symtab's first, then | |
c378eb4e | 2820 | check the psymtab's. If a psymtab indicates the existence |
c906108c SS |
2821 | of the desired name as a global, then do psymtab-to-symtab |
2822 | conversion on the fly and return the found symbol. */ | |
c5aa993b | 2823 | |
2030c079 | 2824 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2825 | { |
2826 | t = basic_lookup_transparent_type_1 (objfile, GLOBAL_BLOCK, name); | |
2827 | if (t) | |
2828 | return t; | |
2829 | } | |
c906108c | 2830 | |
2030c079 | 2831 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2832 | { |
2833 | t = basic_lookup_transparent_type_quick (objfile, GLOBAL_BLOCK, name); | |
2834 | if (t) | |
2835 | return t; | |
2836 | } | |
c906108c SS |
2837 | |
2838 | /* Now search the static file-level symbols. | |
2839 | Not strictly correct, but more useful than an error. | |
2840 | Do the symtab's first, then | |
c378eb4e | 2841 | check the psymtab's. If a psymtab indicates the existence |
c906108c | 2842 | of the desired name as a file-level static, then do psymtab-to-symtab |
c378eb4e | 2843 | conversion on the fly and return the found symbol. */ |
c906108c | 2844 | |
2030c079 | 2845 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2846 | { |
2847 | t = basic_lookup_transparent_type_1 (objfile, STATIC_BLOCK, name); | |
2848 | if (t) | |
2849 | return t; | |
2850 | } | |
c906108c | 2851 | |
2030c079 | 2852 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2853 | { |
2854 | t = basic_lookup_transparent_type_quick (objfile, STATIC_BLOCK, name); | |
2855 | if (t) | |
2856 | return t; | |
2857 | } | |
ccefe4c4 | 2858 | |
c906108c SS |
2859 | return (struct type *) 0; |
2860 | } | |
2861 | ||
6969f124 | 2862 | /* See symtab.h. */ |
f8eba3c6 | 2863 | |
6969f124 | 2864 | bool |
b5ec771e PA |
2865 | iterate_over_symbols (const struct block *block, |
2866 | const lookup_name_info &name, | |
6c015214 | 2867 | const domain_search_flags domain, |
14bc53a8 | 2868 | gdb::function_view<symbol_found_callback_ftype> callback) |
f8eba3c6 | 2869 | { |
a1b29426 | 2870 | for (struct symbol *sym : block_iterator_range (block, &name)) |
4eeaa230 | 2871 | { |
911e1e79 | 2872 | if (sym->matches (domain)) |
f8eba3c6 | 2873 | { |
7e41c8db KS |
2874 | struct block_symbol block_sym = {sym, block}; |
2875 | ||
2876 | if (!callback (&block_sym)) | |
6969f124 | 2877 | return false; |
f8eba3c6 | 2878 | } |
f8eba3c6 | 2879 | } |
6969f124 | 2880 | return true; |
f8eba3c6 TT |
2881 | } |
2882 | ||
6a3dbf1b TT |
2883 | /* See symtab.h. */ |
2884 | ||
2885 | bool | |
2886 | iterate_over_symbols_terminated | |
2887 | (const struct block *block, | |
2888 | const lookup_name_info &name, | |
6c015214 | 2889 | const domain_search_flags domain, |
6a3dbf1b TT |
2890 | gdb::function_view<symbol_found_callback_ftype> callback) |
2891 | { | |
2892 | if (!iterate_over_symbols (block, name, domain, callback)) | |
2893 | return false; | |
2894 | struct block_symbol block_sym = {nullptr, block}; | |
2895 | return callback (&block_sym); | |
2896 | } | |
2897 | ||
43f3e411 DE |
2898 | /* Find the compunit symtab associated with PC and SECTION. |
2899 | This will read in debug info as necessary. */ | |
c906108c | 2900 | |
43f3e411 DE |
2901 | struct compunit_symtab * |
2902 | find_pc_sect_compunit_symtab (CORE_ADDR pc, struct obj_section *section) | |
c906108c | 2903 | { |
43f3e411 | 2904 | struct compunit_symtab *best_cust = NULL; |
61eb46a4 | 2905 | CORE_ADDR best_cust_range = 0; |
77e371c0 | 2906 | struct bound_minimal_symbol msymbol; |
8a48e967 DJ |
2907 | |
2908 | /* If we know that this is not a text address, return failure. This is | |
2909 | necessary because we loop based on the block's high and low code | |
2910 | addresses, which do not include the data ranges, and because | |
2911 | we call find_pc_sect_psymtab which has a similar restriction based | |
2912 | on the partial_symtab's texthigh and textlow. */ | |
77e371c0 | 2913 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); |
1ed9f74e | 2914 | if (msymbol.minsym && msymbol.minsym->data_p ()) |
8a48e967 | 2915 | return NULL; |
c906108c SS |
2916 | |
2917 | /* Search all symtabs for the one whose file contains our address, and which | |
2918 | is the smallest of all the ones containing the address. This is designed | |
2919 | to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000 | |
2920 | and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from | |
2921 | 0x1000-0x4000, but for address 0x2345 we want to return symtab b. | |
2922 | ||
2923 | This happens for native ecoff format, where code from included files | |
c378eb4e | 2924 | gets its own symtab. The symtab for the included file should have |
c906108c SS |
2925 | been read in already via the dependency mechanism. |
2926 | It might be swifter to create several symtabs with the same name | |
2927 | like xcoff does (I'm not sure). | |
2928 | ||
2929 | It also happens for objfiles that have their functions reordered. | |
2930 | For these, the symtab we are looking for is not necessarily read in. */ | |
2931 | ||
2030c079 | 2932 | for (objfile *obj_file : current_program_space->objfiles ()) |
d8aeb77f | 2933 | { |
b669c953 | 2934 | for (compunit_symtab *cust : obj_file->compunits ()) |
d8aeb77f | 2935 | { |
af39c5c8 | 2936 | const struct blockvector *bv = cust->blockvector (); |
63d609de | 2937 | const struct block *global_block = bv->global_block (); |
4b8791e1 SM |
2938 | CORE_ADDR start = global_block->start (); |
2939 | CORE_ADDR end = global_block->end (); | |
61eb46a4 TV |
2940 | bool in_range_p = start <= pc && pc < end; |
2941 | if (!in_range_p) | |
2942 | continue; | |
43f3e411 | 2943 | |
414705d1 | 2944 | if (bv->map () != nullptr) |
1b00ef06 | 2945 | { |
769520b7 | 2946 | if (bv->map ()->find (pc) == nullptr) |
1b00ef06 TV |
2947 | continue; |
2948 | ||
2949 | return cust; | |
2950 | } | |
2951 | ||
61eb46a4 TV |
2952 | CORE_ADDR range = end - start; |
2953 | if (best_cust != nullptr | |
2954 | && range >= best_cust_range) | |
2955 | /* Cust doesn't have a smaller range than best_cust, skip it. */ | |
2956 | continue; | |
2957 | ||
2958 | /* For an objfile that has its functions reordered, | |
2959 | find_pc_psymtab will find the proper partial symbol table | |
2960 | and we simply return its corresponding symtab. */ | |
2961 | /* In order to better support objfiles that contain both | |
2962 | stabs and coff debugging info, we continue on if a psymtab | |
2963 | can't be found. */ | |
100e3935 TT |
2964 | struct compunit_symtab *result |
2965 | = obj_file->find_pc_sect_compunit_symtab (msymbol, pc, | |
2966 | section, 0); | |
2967 | if (result != nullptr) | |
2968 | return result; | |
c906108c | 2969 | |
61eb46a4 | 2970 | if (section != 0) |
d8aeb77f | 2971 | { |
548a89df | 2972 | struct symbol *found_sym = nullptr; |
61eb46a4 | 2973 | |
bd24c5d6 | 2974 | for (int b_index = GLOBAL_BLOCK; |
548a89df | 2975 | b_index <= STATIC_BLOCK && found_sym == nullptr; |
bd24c5d6 | 2976 | ++b_index) |
d8aeb77f | 2977 | { |
63d609de | 2978 | const struct block *b = bv->block (b_index); |
548a89df | 2979 | for (struct symbol *sym : block_iterator_range (b)) |
bd24c5d6 | 2980 | { |
ebbc3a7d | 2981 | if (matching_obj_sections (sym->obj_section (obj_file), |
bd24c5d6 | 2982 | section)) |
548a89df TT |
2983 | { |
2984 | found_sym = sym; | |
2985 | break; | |
2986 | } | |
bd24c5d6 | 2987 | } |
d8aeb77f | 2988 | } |
548a89df | 2989 | if (found_sym == nullptr) |
61eb46a4 | 2990 | continue; /* No symbol in this symtab matches |
d8aeb77f | 2991 | section. */ |
d8aeb77f | 2992 | } |
61eb46a4 TV |
2993 | |
2994 | /* Cust is best found sofar, save it. */ | |
2995 | best_cust = cust; | |
2996 | best_cust_range = range; | |
d8aeb77f TT |
2997 | } |
2998 | } | |
c906108c | 2999 | |
43f3e411 DE |
3000 | if (best_cust != NULL) |
3001 | return best_cust; | |
c906108c | 3002 | |
072cabfe DE |
3003 | /* Not found in symtabs, search the "quick" symtabs (e.g. psymtabs). */ |
3004 | ||
2030c079 | 3005 | for (objfile *objf : current_program_space->objfiles ()) |
aed57c53 | 3006 | { |
4d080b46 TT |
3007 | struct compunit_symtab *result |
3008 | = objf->find_pc_sect_compunit_symtab (msymbol, pc, section, 1); | |
aed57c53 TT |
3009 | if (result != NULL) |
3010 | return result; | |
3011 | } | |
ccefe4c4 TT |
3012 | |
3013 | return NULL; | |
c906108c SS |
3014 | } |
3015 | ||
43f3e411 DE |
3016 | /* Find the compunit symtab associated with PC. |
3017 | This will read in debug info as necessary. | |
3018 | Backward compatibility, no section. */ | |
c906108c | 3019 | |
43f3e411 DE |
3020 | struct compunit_symtab * |
3021 | find_pc_compunit_symtab (CORE_ADDR pc) | |
c906108c | 3022 | { |
43f3e411 | 3023 | return find_pc_sect_compunit_symtab (pc, find_pc_mapped_section (pc)); |
c906108c | 3024 | } |
71a3c369 TT |
3025 | |
3026 | /* See symtab.h. */ | |
3027 | ||
3028 | struct symbol * | |
3029 | find_symbol_at_address (CORE_ADDR address) | |
3030 | { | |
1f2624a3 TT |
3031 | /* A helper function to search a given symtab for a symbol matching |
3032 | ADDR. */ | |
3033 | auto search_symtab = [] (compunit_symtab *symtab, CORE_ADDR addr) -> symbol * | |
aed57c53 | 3034 | { |
af39c5c8 | 3035 | const struct blockvector *bv = symtab->blockvector (); |
71a3c369 | 3036 | |
1f2624a3 | 3037 | for (int i = GLOBAL_BLOCK; i <= STATIC_BLOCK; ++i) |
aed57c53 | 3038 | { |
63d609de | 3039 | const struct block *b = bv->block (i); |
71a3c369 | 3040 | |
548a89df | 3041 | for (struct symbol *sym : block_iterator_range (b)) |
71a3c369 | 3042 | { |
66d7f48f | 3043 | if (sym->aclass () == LOC_STATIC |
4aeddc50 | 3044 | && sym->value_address () == addr) |
1f2624a3 TT |
3045 | return sym; |
3046 | } | |
3047 | } | |
3048 | return nullptr; | |
3049 | }; | |
aed57c53 | 3050 | |
1f2624a3 TT |
3051 | for (objfile *objfile : current_program_space->objfiles ()) |
3052 | { | |
4d080b46 TT |
3053 | /* If this objfile was read with -readnow, then we need to |
3054 | search the symtabs directly. */ | |
3055 | if ((objfile->flags & OBJF_READNOW) != 0) | |
1f2624a3 TT |
3056 | { |
3057 | for (compunit_symtab *symtab : objfile->compunits ()) | |
3058 | { | |
3059 | struct symbol *sym = search_symtab (symtab, address); | |
3060 | if (sym != nullptr) | |
3061 | return sym; | |
3062 | } | |
3063 | } | |
3064 | else | |
3065 | { | |
3066 | struct compunit_symtab *symtab | |
4d080b46 | 3067 | = objfile->find_compunit_symtab_by_address (address); |
1f2624a3 TT |
3068 | if (symtab != NULL) |
3069 | { | |
3070 | struct symbol *sym = search_symtab (symtab, address); | |
3071 | if (sym != nullptr) | |
3072 | return sym; | |
71a3c369 | 3073 | } |
aed57c53 TT |
3074 | } |
3075 | } | |
71a3c369 TT |
3076 | |
3077 | return NULL; | |
3078 | } | |
3079 | ||
c906108c | 3080 | \f |
c5aa993b | 3081 | |
7e73cedf | 3082 | /* Find the source file and line number for a given PC value and SECTION. |
c906108c SS |
3083 | Return a structure containing a symtab pointer, a line number, |
3084 | and a pc range for the entire source line. | |
3085 | The value's .pc field is NOT the specified pc. | |
3086 | NOTCURRENT nonzero means, if specified pc is on a line boundary, | |
3087 | use the line that ends there. Otherwise, in that case, the line | |
3088 | that begins there is used. */ | |
3089 | ||
3090 | /* The big complication here is that a line may start in one file, and end just | |
3091 | before the start of another file. This usually occurs when you #include | |
3092 | code in the middle of a subroutine. To properly find the end of a line's PC | |
3093 | range, we must search all symtabs associated with this compilation unit, and | |
3094 | find the one whose first PC is closer than that of the next line in this | |
3095 | symtab. */ | |
3096 | ||
c906108c | 3097 | struct symtab_and_line |
714835d5 | 3098 | find_pc_sect_line (CORE_ADDR pc, struct obj_section *section, int notcurrent) |
c906108c | 3099 | { |
43f3e411 | 3100 | struct compunit_symtab *cust; |
977a0c16 | 3101 | const linetable *l; |
52f0bd74 | 3102 | int len; |
977a0c16 | 3103 | const linetable_entry *item; |
346d1dfe | 3104 | const struct blockvector *bv; |
7cbd4a93 | 3105 | struct bound_minimal_symbol msymbol; |
c906108c SS |
3106 | |
3107 | /* Info on best line seen so far, and where it starts, and its file. */ | |
3108 | ||
977a0c16 | 3109 | const linetable_entry *best = NULL; |
c906108c SS |
3110 | CORE_ADDR best_end = 0; |
3111 | struct symtab *best_symtab = 0; | |
3112 | ||
3113 | /* Store here the first line number | |
3114 | of a file which contains the line at the smallest pc after PC. | |
3115 | If we don't find a line whose range contains PC, | |
3116 | we will use a line one less than this, | |
3117 | with a range from the start of that file to the first line's pc. */ | |
977a0c16 | 3118 | const linetable_entry *alt = NULL; |
c906108c SS |
3119 | |
3120 | /* Info on best line seen in this file. */ | |
3121 | ||
977a0c16 | 3122 | const linetable_entry *prev; |
c906108c SS |
3123 | |
3124 | /* If this pc is not from the current frame, | |
3125 | it is the address of the end of a call instruction. | |
3126 | Quite likely that is the start of the following statement. | |
3127 | But what we want is the statement containing the instruction. | |
3128 | Fudge the pc to make sure we get that. */ | |
3129 | ||
b77b1eb7 JB |
3130 | /* It's tempting to assume that, if we can't find debugging info for |
3131 | any function enclosing PC, that we shouldn't search for line | |
3132 | number info, either. However, GAS can emit line number info for | |
3133 | assembly files --- very helpful when debugging hand-written | |
3134 | assembly code. In such a case, we'd have no debug info for the | |
3135 | function, but we would have line info. */ | |
648f4f79 | 3136 | |
c906108c SS |
3137 | if (notcurrent) |
3138 | pc -= 1; | |
3139 | ||
c5aa993b | 3140 | /* elz: added this because this function returned the wrong |
c906108c | 3141 | information if the pc belongs to a stub (import/export) |
c378eb4e | 3142 | to call a shlib function. This stub would be anywhere between |
9af17804 | 3143 | two functions in the target, and the line info was erroneously |
c378eb4e MS |
3144 | taken to be the one of the line before the pc. */ |
3145 | ||
c906108c | 3146 | /* RT: Further explanation: |
c5aa993b | 3147 | |
c906108c SS |
3148 | * We have stubs (trampolines) inserted between procedures. |
3149 | * | |
3150 | * Example: "shr1" exists in a shared library, and a "shr1" stub also | |
3151 | * exists in the main image. | |
3152 | * | |
3153 | * In the minimal symbol table, we have a bunch of symbols | |
c378eb4e | 3154 | * sorted by start address. The stubs are marked as "trampoline", |
c906108c SS |
3155 | * the others appear as text. E.g.: |
3156 | * | |
9af17804 | 3157 | * Minimal symbol table for main image |
c906108c SS |
3158 | * main: code for main (text symbol) |
3159 | * shr1: stub (trampoline symbol) | |
3160 | * foo: code for foo (text symbol) | |
3161 | * ... | |
3162 | * Minimal symbol table for "shr1" image: | |
3163 | * ... | |
3164 | * shr1: code for shr1 (text symbol) | |
3165 | * ... | |
3166 | * | |
3167 | * So the code below is trying to detect if we are in the stub | |
3168 | * ("shr1" stub), and if so, find the real code ("shr1" trampoline), | |
3169 | * and if found, do the symbolization from the real-code address | |
3170 | * rather than the stub address. | |
3171 | * | |
3172 | * Assumptions being made about the minimal symbol table: | |
3173 | * 1. lookup_minimal_symbol_by_pc() will return a trampoline only | |
c378eb4e | 3174 | * if we're really in the trampoline.s If we're beyond it (say |
9af17804 | 3175 | * we're in "foo" in the above example), it'll have a closer |
c906108c SS |
3176 | * symbol (the "foo" text symbol for example) and will not |
3177 | * return the trampoline. | |
3178 | * 2. lookup_minimal_symbol_text() will find a real text symbol | |
3179 | * corresponding to the trampoline, and whose address will | |
c378eb4e | 3180 | * be different than the trampoline address. I put in a sanity |
c906108c SS |
3181 | * check for the address being the same, to avoid an |
3182 | * infinite recursion. | |
3183 | */ | |
c5aa993b | 3184 | msymbol = lookup_minimal_symbol_by_pc (pc); |
7cbd4a93 | 3185 | if (msymbol.minsym != NULL) |
60f62e2b | 3186 | if (msymbol.minsym->type () == mst_solib_trampoline) |
c5aa993b | 3187 | { |
77e371c0 | 3188 | struct bound_minimal_symbol mfunsym |
c9d95fa3 | 3189 | = lookup_minimal_symbol_text (msymbol.minsym->linkage_name (), |
77e371c0 TT |
3190 | NULL); |
3191 | ||
3192 | if (mfunsym.minsym == NULL) | |
c5aa993b JM |
3193 | /* I eliminated this warning since it is coming out |
3194 | * in the following situation: | |
3195 | * gdb shmain // test program with shared libraries | |
3196 | * (gdb) break shr1 // function in shared lib | |
3197 | * Warning: In stub for ... | |
9af17804 | 3198 | * In the above situation, the shared lib is not loaded yet, |
c5aa993b JM |
3199 | * so of course we can't find the real func/line info, |
3200 | * but the "break" still works, and the warning is annoying. | |
c378eb4e | 3201 | * So I commented out the warning. RT */ |
3e43a32a | 3202 | /* warning ("In stub for %s; unable to find real function/line info", |
987012b8 | 3203 | msymbol->linkage_name ()); */ |
c378eb4e | 3204 | ; |
c5aa993b | 3205 | /* fall through */ |
4aeddc50 SM |
3206 | else if (mfunsym.value_address () |
3207 | == msymbol.value_address ()) | |
c5aa993b | 3208 | /* Avoid infinite recursion */ |
c378eb4e | 3209 | /* See above comment about why warning is commented out. */ |
3e43a32a | 3210 | /* warning ("In stub for %s; unable to find real function/line info", |
987012b8 | 3211 | msymbol->linkage_name ()); */ |
c378eb4e | 3212 | ; |
c5aa993b JM |
3213 | /* fall through */ |
3214 | else | |
dd69bf7a KB |
3215 | { |
3216 | /* Detect an obvious case of infinite recursion. If this | |
3217 | should occur, we'd like to know about it, so error out, | |
3218 | fatally. */ | |
4aeddc50 | 3219 | if (mfunsym.value_address () == pc) |
f34652de | 3220 | internal_error (_("Infinite recursion detected in find_pc_sect_line;" |
dd69bf7a KB |
3221 | "please file a bug report")); |
3222 | ||
4aeddc50 | 3223 | return find_pc_line (mfunsym.value_address (), 0); |
dd69bf7a | 3224 | } |
c5aa993b | 3225 | } |
c906108c | 3226 | |
51abb421 PA |
3227 | symtab_and_line val; |
3228 | val.pspace = current_program_space; | |
c906108c | 3229 | |
43f3e411 DE |
3230 | cust = find_pc_sect_compunit_symtab (pc, section); |
3231 | if (cust == NULL) | |
c906108c | 3232 | { |
c378eb4e | 3233 | /* If no symbol information, return previous pc. */ |
c906108c SS |
3234 | if (notcurrent) |
3235 | pc++; | |
3236 | val.pc = pc; | |
3237 | return val; | |
3238 | } | |
3239 | ||
af39c5c8 | 3240 | bv = cust->blockvector (); |
1acc9dca | 3241 | struct objfile *objfile = cust->objfile (); |
c906108c SS |
3242 | |
3243 | /* Look at all the symtabs that share this blockvector. | |
3244 | They all have the same apriori range, that we found was right; | |
3245 | but they have different line tables. */ | |
3246 | ||
102cc235 | 3247 | for (symtab *iter_s : cust->filetabs ()) |
c906108c SS |
3248 | { |
3249 | /* Find the best line in this symtab. */ | |
5b607461 | 3250 | l = iter_s->linetable (); |
c906108c | 3251 | if (!l) |
c5aa993b | 3252 | continue; |
c906108c SS |
3253 | len = l->nitems; |
3254 | if (len <= 0) | |
3255 | { | |
3256 | /* I think len can be zero if the symtab lacks line numbers | |
3257 | (e.g. gcc -g1). (Either that or the LINETABLE is NULL; | |
3258 | I'm not sure which, and maybe it depends on the symbol | |
3259 | reader). */ | |
3260 | continue; | |
3261 | } | |
3262 | ||
3263 | prev = NULL; | |
c378eb4e | 3264 | item = l->item; /* Get first line info. */ |
c906108c SS |
3265 | |
3266 | /* Is this file's first line closer than the first lines of other files? | |
dda83cd7 | 3267 | If so, record this file, and its first line, as best alternate. */ |
1acc9dca | 3268 | if (item->pc (objfile) > pc |
0434c3ef | 3269 | && (!alt || item->unrelocated_pc () < alt->unrelocated_pc ())) |
c656bca5 | 3270 | alt = item; |
c906108c | 3271 | |
48e0f38c TT |
3272 | auto pc_compare = [] (const unrelocated_addr &comp_pc, |
3273 | const struct linetable_entry & lhs) | |
7cbe16e9 | 3274 | { |
0434c3ef | 3275 | return comp_pc < lhs.unrelocated_pc (); |
7cbe16e9 | 3276 | }; |
c906108c | 3277 | |
977a0c16 TT |
3278 | const linetable_entry *first = item; |
3279 | const linetable_entry *last = item + len; | |
48e0f38c TT |
3280 | item = (std::upper_bound |
3281 | (first, last, | |
3282 | unrelocated_addr (pc - objfile->text_section_offset ()), | |
3283 | pc_compare)); | |
7cbe16e9 | 3284 | if (item != first) |
aaba0d3a GL |
3285 | { |
3286 | prev = item - 1; /* Found a matching item. */ | |
3287 | /* At this point, prev is a line whose address is <= pc. However, we | |
3288 | don't know if ITEM is pointing to the same statement or not. */ | |
3289 | while (item != last && prev->line == item->line && !item->is_stmt) | |
3290 | item++; | |
3291 | } | |
c906108c SS |
3292 | |
3293 | /* At this point, prev points at the line whose start addr is <= pc, and | |
aaba0d3a | 3294 | item points at the next statement. If we ran off the end of the linetable |
dda83cd7 SM |
3295 | (pc >= start of the last line), then prev == item. If pc < start of |
3296 | the first line, prev will not be set. */ | |
c906108c SS |
3297 | |
3298 | /* Is this file's best line closer than the best in the other files? | |
dda83cd7 SM |
3299 | If so, record this file, and its best line, as best so far. Don't |
3300 | save prev if it represents the end of a function (i.e. line number | |
3301 | 0) instead of a real line. */ | |
c906108c | 3302 | |
0434c3ef TT |
3303 | if (prev && prev->line |
3304 | && (!best || prev->unrelocated_pc () > best->unrelocated_pc ())) | |
c906108c SS |
3305 | { |
3306 | best = prev; | |
43f3e411 | 3307 | best_symtab = iter_s; |
25d53da1 | 3308 | |
8c95582d AB |
3309 | /* If during the binary search we land on a non-statement entry, |
3310 | scan backward through entries at the same address to see if | |
3311 | there is an entry marked as is-statement. In theory this | |
3312 | duplication should have been removed from the line table | |
3313 | during construction, this is just a double check. If the line | |
3314 | table has had the duplication removed then this should be | |
3315 | pretty cheap. */ | |
3316 | if (!best->is_stmt) | |
3317 | { | |
977a0c16 | 3318 | const linetable_entry *tmp = best; |
0434c3ef TT |
3319 | while (tmp > first |
3320 | && (tmp - 1)->unrelocated_pc () == tmp->unrelocated_pc () | |
8c95582d AB |
3321 | && (tmp - 1)->line != 0 && !tmp->is_stmt) |
3322 | --tmp; | |
3323 | if (tmp->is_stmt) | |
3324 | best = tmp; | |
3325 | } | |
3326 | ||
25d53da1 | 3327 | /* Discard BEST_END if it's before the PC of the current BEST. */ |
1acc9dca | 3328 | if (best_end <= best->pc (objfile)) |
25d53da1 | 3329 | best_end = 0; |
c906108c | 3330 | } |
25d53da1 KB |
3331 | |
3332 | /* If another line (denoted by ITEM) is in the linetable and its | |
7cbe16e9 | 3333 | PC is after BEST's PC, but before the current BEST_END, then |
25d53da1 | 3334 | use ITEM's PC as the new best_end. */ |
0434c3ef TT |
3335 | if (best && item < last |
3336 | && item->unrelocated_pc () > best->unrelocated_pc () | |
1acc9dca TT |
3337 | && (best_end == 0 || best_end > item->pc (objfile))) |
3338 | best_end = item->pc (objfile); | |
c906108c SS |
3339 | } |
3340 | ||
3341 | if (!best_symtab) | |
3342 | { | |
e86e87f7 DJ |
3343 | /* If we didn't find any line number info, just return zeros. |
3344 | We used to return alt->line - 1 here, but that could be | |
3345 | anywhere; if we don't have line number info for this PC, | |
3346 | don't make some up. */ | |
3347 | val.pc = pc; | |
c906108c | 3348 | } |
e8717518 FF |
3349 | else if (best->line == 0) |
3350 | { | |
3351 | /* If our best fit is in a range of PC's for which no line | |
3352 | number info is available (line number is zero) then we didn't | |
c378eb4e | 3353 | find any valid line information. */ |
e8717518 FF |
3354 | val.pc = pc; |
3355 | } | |
c906108c SS |
3356 | else |
3357 | { | |
8c95582d | 3358 | val.is_stmt = best->is_stmt; |
c906108c SS |
3359 | val.symtab = best_symtab; |
3360 | val.line = best->line; | |
1acc9dca TT |
3361 | val.pc = best->pc (objfile); |
3362 | if (best_end && (!alt || best_end < alt->pc (objfile))) | |
c906108c SS |
3363 | val.end = best_end; |
3364 | else if (alt) | |
1acc9dca | 3365 | val.end = alt->pc (objfile); |
c906108c | 3366 | else |
63d609de | 3367 | val.end = bv->global_block ()->end (); |
c906108c SS |
3368 | } |
3369 | val.section = section; | |
3370 | return val; | |
3371 | } | |
3372 | ||
c378eb4e | 3373 | /* Backward compatibility (no section). */ |
c906108c SS |
3374 | |
3375 | struct symtab_and_line | |
fba45db2 | 3376 | find_pc_line (CORE_ADDR pc, int notcurrent) |
c906108c | 3377 | { |
714835d5 | 3378 | struct obj_section *section; |
c906108c SS |
3379 | |
3380 | section = find_pc_overlay (pc); | |
31a8f60f AB |
3381 | if (!pc_in_unmapped_range (pc, section)) |
3382 | return find_pc_sect_line (pc, section, notcurrent); | |
3383 | ||
3384 | /* If the original PC was an unmapped address then we translate this to a | |
3385 | mapped address in order to lookup the sal. However, as the user | |
3386 | passed us an unmapped address it makes more sense to return a result | |
3387 | that has the pc and end fields translated to unmapped addresses. */ | |
3388 | pc = overlay_mapped_address (pc, section); | |
3389 | symtab_and_line sal = find_pc_sect_line (pc, section, notcurrent); | |
3390 | sal.pc = overlay_unmapped_address (sal.pc, section); | |
3391 | sal.end = overlay_unmapped_address (sal.end, section); | |
3392 | return sal; | |
c906108c | 3393 | } |
34248c3a | 3394 | |
fe6356de CL |
3395 | /* Compare two symtab_and_line entries. Return true if both have |
3396 | the same line number and the same symtab pointer. That means we | |
3397 | are dealing with two entries from the same line and from the same | |
3398 | source file. | |
3399 | ||
3400 | Return false otherwise. */ | |
3401 | ||
3402 | static bool | |
3403 | sal_line_symtab_matches_p (const symtab_and_line &sal1, | |
3404 | const symtab_and_line &sal2) | |
3405 | { | |
3406 | return sal1.line == sal2.line && sal1.symtab == sal2.symtab; | |
3407 | } | |
3408 | ||
3409 | /* See symtah.h. */ | |
3410 | ||
3411 | std::optional<CORE_ADDR> | |
3412 | find_line_range_start (CORE_ADDR pc) | |
3413 | { | |
3414 | struct symtab_and_line current_sal = find_pc_line (pc, 0); | |
3415 | ||
3416 | if (current_sal.line == 0) | |
3417 | return {}; | |
3418 | ||
3419 | struct symtab_and_line prev_sal = find_pc_line (current_sal.pc - 1, 0); | |
3420 | ||
3421 | /* If the previous entry is for a different line, that means we are already | |
3422 | at the entry with the start PC for this line. */ | |
3423 | if (!sal_line_symtab_matches_p (prev_sal, current_sal)) | |
3424 | return current_sal.pc; | |
3425 | ||
3426 | /* Otherwise, keep looking for entries for the same line but with | |
3427 | smaller PC's. */ | |
3428 | bool done = false; | |
3429 | CORE_ADDR prev_pc; | |
3430 | while (!done) | |
3431 | { | |
3432 | prev_pc = prev_sal.pc; | |
3433 | ||
3434 | prev_sal = find_pc_line (prev_pc - 1, 0); | |
3435 | ||
3436 | /* Did we notice a line change? If so, we are done searching. */ | |
3437 | if (!sal_line_symtab_matches_p (prev_sal, current_sal)) | |
3438 | done = true; | |
3439 | } | |
3440 | ||
3441 | return prev_pc; | |
3442 | } | |
3443 | ||
34248c3a DE |
3444 | /* See symtab.h. */ |
3445 | ||
3446 | struct symtab * | |
3447 | find_pc_line_symtab (CORE_ADDR pc) | |
3448 | { | |
3449 | struct symtab_and_line sal; | |
3450 | ||
3451 | /* This always passes zero for NOTCURRENT to find_pc_line. | |
3452 | There are currently no callers that ever pass non-zero. */ | |
3453 | sal = find_pc_line (pc, 0); | |
3454 | return sal.symtab; | |
3455 | } | |
c906108c | 3456 | \f |
c906108c SS |
3457 | /* Find line number LINE in any symtab whose name is the same as |
3458 | SYMTAB. | |
3459 | ||
3460 | If found, return the symtab that contains the linetable in which it was | |
3461 | found, set *INDEX to the index in the linetable of the best entry | |
ececd218 | 3462 | found, and set *EXACT_MATCH to true if the value returned is an |
c906108c SS |
3463 | exact match. |
3464 | ||
3465 | If not found, return NULL. */ | |
3466 | ||
50641945 | 3467 | struct symtab * |
5accd1a0 | 3468 | find_line_symtab (struct symtab *sym_tab, int line, |
ececd218 | 3469 | int *index, bool *exact_match) |
c906108c | 3470 | { |
6f43c46f | 3471 | int exact = 0; /* Initialized here to avoid a compiler warning. */ |
c906108c SS |
3472 | |
3473 | /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE | |
3474 | so far seen. */ | |
3475 | ||
3476 | int best_index; | |
977a0c16 | 3477 | const struct linetable *best_linetable; |
c906108c SS |
3478 | struct symtab *best_symtab; |
3479 | ||
3480 | /* First try looking it up in the given symtab. */ | |
5b607461 | 3481 | best_linetable = sym_tab->linetable (); |
5accd1a0 | 3482 | best_symtab = sym_tab; |
f8eba3c6 | 3483 | best_index = find_line_common (best_linetable, line, &exact, 0); |
c906108c SS |
3484 | if (best_index < 0 || !exact) |
3485 | { | |
3486 | /* Didn't find an exact match. So we better keep looking for | |
dda83cd7 SM |
3487 | another symtab with the same name. In the case of xcoff, |
3488 | multiple csects for one source file (produced by IBM's FORTRAN | |
3489 | compiler) produce multiple symtabs (this is unavoidable | |
3490 | assuming csects can be at arbitrary places in memory and that | |
3491 | the GLOBAL_BLOCK of a symtab has a begin and end address). */ | |
c906108c SS |
3492 | |
3493 | /* BEST is the smallest linenumber > LINE so far seen, | |
dda83cd7 SM |
3494 | or 0 if none has been seen so far. |
3495 | BEST_INDEX and BEST_LINETABLE identify the item for it. */ | |
c906108c SS |
3496 | int best; |
3497 | ||
c906108c SS |
3498 | if (best_index >= 0) |
3499 | best = best_linetable->item[best_index].line; | |
3500 | else | |
3501 | best = 0; | |
3502 | ||
2030c079 | 3503 | for (objfile *objfile : current_program_space->objfiles ()) |
4d080b46 | 3504 | objfile->expand_symtabs_with_fullname (symtab_to_fullname (sym_tab)); |
51432cca | 3505 | |
2030c079 | 3506 | for (objfile *objfile : current_program_space->objfiles ()) |
8b31193a | 3507 | { |
b669c953 | 3508 | for (compunit_symtab *cu : objfile->compunits ()) |
8b31193a | 3509 | { |
102cc235 | 3510 | for (symtab *s : cu->filetabs ()) |
8b31193a | 3511 | { |
977a0c16 | 3512 | const struct linetable *l; |
8b31193a TT |
3513 | int ind; |
3514 | ||
3515 | if (FILENAME_CMP (sym_tab->filename, s->filename) != 0) | |
3516 | continue; | |
3517 | if (FILENAME_CMP (symtab_to_fullname (sym_tab), | |
3518 | symtab_to_fullname (s)) != 0) | |
3519 | continue; | |
5b607461 | 3520 | l = s->linetable (); |
8b31193a TT |
3521 | ind = find_line_common (l, line, &exact, 0); |
3522 | if (ind >= 0) | |
3523 | { | |
3524 | if (exact) | |
3525 | { | |
3526 | best_index = ind; | |
3527 | best_linetable = l; | |
3528 | best_symtab = s; | |
3529 | goto done; | |
3530 | } | |
3531 | if (best == 0 || l->item[ind].line < best) | |
3532 | { | |
3533 | best = l->item[ind].line; | |
3534 | best_index = ind; | |
3535 | best_linetable = l; | |
3536 | best_symtab = s; | |
3537 | } | |
3538 | } | |
3539 | } | |
3540 | } | |
3541 | } | |
c906108c | 3542 | } |
c5aa993b | 3543 | done: |
c906108c SS |
3544 | if (best_index < 0) |
3545 | return NULL; | |
3546 | ||
3547 | if (index) | |
3548 | *index = best_index; | |
3549 | if (exact_match) | |
ececd218 | 3550 | *exact_match = (exact != 0); |
c906108c SS |
3551 | |
3552 | return best_symtab; | |
3553 | } | |
f8eba3c6 TT |
3554 | |
3555 | /* Given SYMTAB, returns all the PCs function in the symtab that | |
67d89901 TT |
3556 | exactly match LINE. Returns an empty vector if there are no exact |
3557 | matches, but updates BEST_ITEM in this case. */ | |
f8eba3c6 | 3558 | |
67d89901 | 3559 | std::vector<CORE_ADDR> |
f8eba3c6 | 3560 | find_pcs_for_symtab_line (struct symtab *symtab, int line, |
977a0c16 | 3561 | const linetable_entry **best_item) |
f8eba3c6 | 3562 | { |
c656bca5 | 3563 | int start = 0; |
67d89901 | 3564 | std::vector<CORE_ADDR> result; |
1acc9dca | 3565 | struct objfile *objfile = symtab->compunit ()->objfile (); |
f8eba3c6 TT |
3566 | |
3567 | /* First, collect all the PCs that are at this line. */ | |
3568 | while (1) | |
3569 | { | |
3570 | int was_exact; | |
3571 | int idx; | |
3572 | ||
5b607461 | 3573 | idx = find_line_common (symtab->linetable (), line, &was_exact, |
8435453b | 3574 | start); |
f8eba3c6 TT |
3575 | if (idx < 0) |
3576 | break; | |
3577 | ||
3578 | if (!was_exact) | |
3579 | { | |
977a0c16 | 3580 | const linetable_entry *item = &symtab->linetable ()->item[idx]; |
f8eba3c6 | 3581 | |
8c95582d AB |
3582 | if (*best_item == NULL |
3583 | || (item->line < (*best_item)->line && item->is_stmt)) | |
f8eba3c6 TT |
3584 | *best_item = item; |
3585 | ||
3586 | break; | |
3587 | } | |
3588 | ||
1acc9dca | 3589 | result.push_back (symtab->linetable ()->item[idx].pc (objfile)); |
f8eba3c6 TT |
3590 | start = idx + 1; |
3591 | } | |
3592 | ||
3593 | return result; | |
3594 | } | |
3595 | ||
c906108c SS |
3596 | \f |
3597 | /* Set the PC value for a given source file and line number and return true. | |
ececd218 | 3598 | Returns false for invalid line number (and sets the PC to 0). |
c906108c SS |
3599 | The source file is specified with a struct symtab. */ |
3600 | ||
ececd218 | 3601 | bool |
fba45db2 | 3602 | find_line_pc (struct symtab *symtab, int line, CORE_ADDR *pc) |
c906108c | 3603 | { |
977a0c16 | 3604 | const struct linetable *l; |
c906108c SS |
3605 | int ind; |
3606 | ||
3607 | *pc = 0; | |
3608 | if (symtab == 0) | |
ececd218 | 3609 | return false; |
c906108c SS |
3610 | |
3611 | symtab = find_line_symtab (symtab, line, &ind, NULL); | |
3612 | if (symtab != NULL) | |
3613 | { | |
5b607461 | 3614 | l = symtab->linetable (); |
1acc9dca | 3615 | *pc = l->item[ind].pc (symtab->compunit ()->objfile ()); |
ececd218 | 3616 | return true; |
c906108c SS |
3617 | } |
3618 | else | |
ececd218 | 3619 | return false; |
c906108c SS |
3620 | } |
3621 | ||
3622 | /* Find the range of pc values in a line. | |
3623 | Store the starting pc of the line into *STARTPTR | |
3624 | and the ending pc (start of next line) into *ENDPTR. | |
ececd218 CB |
3625 | Returns true to indicate success. |
3626 | Returns false if could not find the specified line. */ | |
c906108c | 3627 | |
ececd218 | 3628 | bool |
fba45db2 KB |
3629 | find_line_pc_range (struct symtab_and_line sal, CORE_ADDR *startptr, |
3630 | CORE_ADDR *endptr) | |
c906108c SS |
3631 | { |
3632 | CORE_ADDR startaddr; | |
3633 | struct symtab_and_line found_sal; | |
3634 | ||
3635 | startaddr = sal.pc; | |
c5aa993b | 3636 | if (startaddr == 0 && !find_line_pc (sal.symtab, sal.line, &startaddr)) |
ececd218 | 3637 | return false; |
c906108c SS |
3638 | |
3639 | /* This whole function is based on address. For example, if line 10 has | |
3640 | two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then | |
3641 | "info line *0x123" should say the line goes from 0x100 to 0x200 | |
3642 | and "info line *0x355" should say the line goes from 0x300 to 0x400. | |
3643 | This also insures that we never give a range like "starts at 0x134 | |
3644 | and ends at 0x12c". */ | |
3645 | ||
3646 | found_sal = find_pc_sect_line (startaddr, sal.section, 0); | |
3647 | if (found_sal.line != sal.line) | |
3648 | { | |
3649 | /* The specified line (sal) has zero bytes. */ | |
3650 | *startptr = found_sal.pc; | |
3651 | *endptr = found_sal.pc; | |
3652 | } | |
3653 | else | |
3654 | { | |
3655 | *startptr = found_sal.pc; | |
3656 | *endptr = found_sal.end; | |
3657 | } | |
ececd218 | 3658 | return true; |
c906108c SS |
3659 | } |
3660 | ||
3661 | /* Given a line table and a line number, return the index into the line | |
3662 | table for the pc of the nearest line whose number is >= the specified one. | |
3663 | Return -1 if none is found. The value is >= 0 if it is an index. | |
f8eba3c6 | 3664 | START is the index at which to start searching the line table. |
c906108c SS |
3665 | |
3666 | Set *EXACT_MATCH nonzero if the value returned is an exact match. */ | |
3667 | ||
3668 | static int | |
977a0c16 | 3669 | find_line_common (const linetable *l, int lineno, |
f8eba3c6 | 3670 | int *exact_match, int start) |
c906108c | 3671 | { |
52f0bd74 AC |
3672 | int i; |
3673 | int len; | |
c906108c SS |
3674 | |
3675 | /* BEST is the smallest linenumber > LINENO so far seen, | |
3676 | or 0 if none has been seen so far. | |
3677 | BEST_INDEX identifies the item for it. */ | |
3678 | ||
3679 | int best_index = -1; | |
3680 | int best = 0; | |
3681 | ||
b7589f7d DJ |
3682 | *exact_match = 0; |
3683 | ||
c906108c SS |
3684 | if (lineno <= 0) |
3685 | return -1; | |
3686 | if (l == 0) | |
3687 | return -1; | |
3688 | ||
3689 | len = l->nitems; | |
f8eba3c6 | 3690 | for (i = start; i < len; i++) |
c906108c | 3691 | { |
977a0c16 | 3692 | const linetable_entry *item = &(l->item[i]); |
c906108c | 3693 | |
8c95582d AB |
3694 | /* Ignore non-statements. */ |
3695 | if (!item->is_stmt) | |
3696 | continue; | |
3697 | ||
c906108c SS |
3698 | if (item->line == lineno) |
3699 | { | |
3700 | /* Return the first (lowest address) entry which matches. */ | |
3701 | *exact_match = 1; | |
3702 | return i; | |
3703 | } | |
3704 | ||
3705 | if (item->line > lineno && (best == 0 || item->line < best)) | |
3706 | { | |
3707 | best = item->line; | |
3708 | best_index = i; | |
3709 | } | |
3710 | } | |
3711 | ||
3712 | /* If we got here, we didn't get an exact match. */ | |
c906108c SS |
3713 | return best_index; |
3714 | } | |
3715 | ||
ececd218 | 3716 | bool |
fba45db2 | 3717 | find_pc_line_pc_range (CORE_ADDR pc, CORE_ADDR *startptr, CORE_ADDR *endptr) |
c906108c SS |
3718 | { |
3719 | struct symtab_and_line sal; | |
433759f7 | 3720 | |
c906108c SS |
3721 | sal = find_pc_line (pc, 0); |
3722 | *startptr = sal.pc; | |
3723 | *endptr = sal.end; | |
3724 | return sal.symtab != 0; | |
3725 | } | |
3726 | ||
cd2bb709 PA |
3727 | /* Helper for find_function_start_sal. Does most of the work, except |
3728 | setting the sal's symbol. */ | |
aab2f208 | 3729 | |
cd2bb709 PA |
3730 | static symtab_and_line |
3731 | find_function_start_sal_1 (CORE_ADDR func_addr, obj_section *section, | |
3732 | bool funfirstline) | |
aab2f208 | 3733 | { |
42ddae10 | 3734 | symtab_and_line sal = find_pc_sect_line (func_addr, section, 0); |
aab2f208 | 3735 | |
6e22494e | 3736 | if (funfirstline && sal.symtab != NULL |
c6159652 | 3737 | && (sal.symtab->compunit ()->locations_valid () |
1ee2e9f9 | 3738 | || sal.symtab->language () == language_asm)) |
6e22494e | 3739 | { |
3c86fae3 | 3740 | struct gdbarch *gdbarch = sal.symtab->compunit ()->objfile ()->arch (); |
141c5cc4 | 3741 | |
42ddae10 | 3742 | sal.pc = func_addr; |
141c5cc4 JK |
3743 | if (gdbarch_skip_entrypoint_p (gdbarch)) |
3744 | sal.pc = gdbarch_skip_entrypoint (gdbarch, sal.pc); | |
6e22494e JK |
3745 | return sal; |
3746 | } | |
3747 | ||
aab2f208 | 3748 | /* We always should have a line for the function start address. |
42ddae10 | 3749 | If we don't, something is odd. Create a plain SAL referring |
aab2f208 DE |
3750 | just the PC and hope that skip_prologue_sal (if requested) |
3751 | can find a line number for after the prologue. */ | |
42ddae10 | 3752 | if (sal.pc < func_addr) |
aab2f208 | 3753 | { |
51abb421 | 3754 | sal = {}; |
aab2f208 | 3755 | sal.pspace = current_program_space; |
42ddae10 | 3756 | sal.pc = func_addr; |
08be3fe3 | 3757 | sal.section = section; |
aab2f208 DE |
3758 | } |
3759 | ||
3760 | if (funfirstline) | |
3761 | skip_prologue_sal (&sal); | |
3762 | ||
3763 | return sal; | |
3764 | } | |
3765 | ||
42ddae10 PA |
3766 | /* See symtab.h. */ |
3767 | ||
cd2bb709 PA |
3768 | symtab_and_line |
3769 | find_function_start_sal (CORE_ADDR func_addr, obj_section *section, | |
3770 | bool funfirstline) | |
3771 | { | |
3772 | symtab_and_line sal | |
3773 | = find_function_start_sal_1 (func_addr, section, funfirstline); | |
3774 | ||
3775 | /* find_function_start_sal_1 does a linetable search, so it finds | |
3776 | the symtab and linenumber, but not a symbol. Fill in the | |
3777 | function symbol too. */ | |
3778 | sal.symbol = find_pc_sect_containing_function (sal.pc, sal.section); | |
3779 | ||
3780 | return sal; | |
3781 | } | |
3782 | ||
3783 | /* See symtab.h. */ | |
3784 | ||
42ddae10 PA |
3785 | symtab_and_line |
3786 | find_function_start_sal (symbol *sym, bool funfirstline) | |
3787 | { | |
42ddae10 | 3788 | symtab_and_line sal |
6395b628 | 3789 | = find_function_start_sal_1 (sym->value_block ()->entry_pc (), |
e19b2d94 | 3790 | sym->obj_section (sym->objfile ()), |
cd2bb709 | 3791 | funfirstline); |
42ddae10 PA |
3792 | sal.symbol = sym; |
3793 | return sal; | |
3794 | } | |
3795 | ||
3796 | ||
8c7a1ee8 EZ |
3797 | /* Given a function start address FUNC_ADDR and SYMTAB, find the first |
3798 | address for that function that has an entry in SYMTAB's line info | |
3799 | table. If such an entry cannot be found, return FUNC_ADDR | |
3800 | unaltered. */ | |
eca864fe | 3801 | |
70221824 | 3802 | static CORE_ADDR |
8c7a1ee8 EZ |
3803 | skip_prologue_using_lineinfo (CORE_ADDR func_addr, struct symtab *symtab) |
3804 | { | |
3805 | CORE_ADDR func_start, func_end; | |
977a0c16 | 3806 | const struct linetable *l; |
952a6d41 | 3807 | int i; |
8c7a1ee8 EZ |
3808 | |
3809 | /* Give up if this symbol has no lineinfo table. */ | |
5b607461 | 3810 | l = symtab->linetable (); |
8c7a1ee8 EZ |
3811 | if (l == NULL) |
3812 | return func_addr; | |
3813 | ||
3814 | /* Get the range for the function's PC values, or give up if we | |
3815 | cannot, for some reason. */ | |
3816 | if (!find_pc_partial_function (func_addr, NULL, &func_start, &func_end)) | |
3817 | return func_addr; | |
3818 | ||
1acc9dca TT |
3819 | struct objfile *objfile = symtab->compunit ()->objfile (); |
3820 | ||
8c7a1ee8 EZ |
3821 | /* Linetable entries are ordered by PC values, see the commentary in |
3822 | symtab.h where `struct linetable' is defined. Thus, the first | |
3823 | entry whose PC is in the range [FUNC_START..FUNC_END[ is the | |
3824 | address we are looking for. */ | |
3825 | for (i = 0; i < l->nitems; i++) | |
3826 | { | |
977a0c16 | 3827 | const linetable_entry *item = &(l->item[i]); |
1acc9dca | 3828 | CORE_ADDR item_pc = item->pc (objfile); |
8c7a1ee8 EZ |
3829 | |
3830 | /* Don't use line numbers of zero, they mark special entries in | |
3831 | the table. See the commentary on symtab.h before the | |
3832 | definition of struct linetable. */ | |
1acc9dca TT |
3833 | if (item->line > 0 && func_start <= item_pc && item_pc < func_end) |
3834 | return item_pc; | |
8c7a1ee8 EZ |
3835 | } |
3836 | ||
3837 | return func_addr; | |
3838 | } | |
3839 | ||
cc96ae7f LS |
3840 | /* Try to locate the address where a breakpoint should be placed past the |
3841 | prologue of function starting at FUNC_ADDR using the line table. | |
3842 | ||
3843 | Return the address associated with the first entry in the line-table for | |
3844 | the function starting at FUNC_ADDR which has prologue_end set to true if | |
3845 | such entry exist, otherwise return an empty optional. */ | |
3846 | ||
6b09f134 | 3847 | static std::optional<CORE_ADDR> |
cc96ae7f LS |
3848 | skip_prologue_using_linetable (CORE_ADDR func_addr) |
3849 | { | |
3850 | CORE_ADDR start_pc, end_pc; | |
3851 | ||
3852 | if (!find_pc_partial_function (func_addr, nullptr, &start_pc, &end_pc)) | |
3853 | return {}; | |
3854 | ||
3855 | const struct symtab_and_line prologue_sal = find_pc_line (start_pc, 0); | |
3856 | if (prologue_sal.symtab != nullptr | |
3857 | && prologue_sal.symtab->language () != language_asm) | |
3858 | { | |
977a0c16 | 3859 | const linetable *linetable = prologue_sal.symtab->linetable (); |
cc96ae7f | 3860 | |
1acc9dca | 3861 | struct objfile *objfile = prologue_sal.symtab->compunit ()->objfile (); |
48e0f38c TT |
3862 | |
3863 | unrelocated_addr unrel_start | |
3864 | = unrelocated_addr (start_pc - objfile->text_section_offset ()); | |
3865 | unrelocated_addr unrel_end | |
3866 | = unrelocated_addr (end_pc - objfile->text_section_offset ()); | |
1acc9dca | 3867 | |
cc96ae7f | 3868 | auto it = std::lower_bound |
48e0f38c TT |
3869 | (linetable->item, linetable->item + linetable->nitems, unrel_start, |
3870 | [] (const linetable_entry <e, unrelocated_addr pc) | |
cc96ae7f | 3871 | { |
0434c3ef | 3872 | return lte.unrelocated_pc () < pc; |
cc96ae7f LS |
3873 | }); |
3874 | ||
3875 | for (; | |
48e0f38c | 3876 | (it < linetable->item + linetable->nitems |
0434c3ef | 3877 | && it->unrelocated_pc () < unrel_end); |
cc96ae7f LS |
3878 | it++) |
3879 | if (it->prologue_end) | |
1acc9dca | 3880 | return {it->pc (objfile)}; |
cc96ae7f LS |
3881 | } |
3882 | ||
3883 | return {}; | |
3884 | } | |
3885 | ||
059acae7 UW |
3886 | /* Adjust SAL to the first instruction past the function prologue. |
3887 | If the PC was explicitly specified, the SAL is not changed. | |
5b0e2db4 AB |
3888 | If the line number was explicitly specified then the SAL can still be |
3889 | updated, unless the language for SAL is assembler, in which case the SAL | |
3890 | will be left unchanged. | |
3891 | If SAL is already past the prologue, then do nothing. */ | |
eca864fe | 3892 | |
059acae7 UW |
3893 | void |
3894 | skip_prologue_sal (struct symtab_and_line *sal) | |
3895 | { | |
3896 | struct symbol *sym; | |
3897 | struct symtab_and_line start_sal; | |
8be455d7 | 3898 | CORE_ADDR pc, saved_pc; |
059acae7 UW |
3899 | struct obj_section *section; |
3900 | const char *name; | |
3901 | struct objfile *objfile; | |
3902 | struct gdbarch *gdbarch; | |
3977b71f | 3903 | const struct block *b, *function_block; |
8be455d7 | 3904 | int force_skip, skip; |
c906108c | 3905 | |
a4b411d6 | 3906 | /* Do not change the SAL if PC was specified explicitly. */ |
059acae7 UW |
3907 | if (sal->explicit_pc) |
3908 | return; | |
6c95b8df | 3909 | |
5b0e2db4 AB |
3910 | /* In assembly code, if the user asks for a specific line then we should |
3911 | not adjust the SAL. The user already has instruction level | |
3912 | visibility in this case, so selecting a line other than one requested | |
3913 | is likely to be the wrong choice. */ | |
3914 | if (sal->symtab != nullptr | |
3915 | && sal->explicit_line | |
1ee2e9f9 | 3916 | && sal->symtab->language () == language_asm) |
5b0e2db4 AB |
3917 | return; |
3918 | ||
5ed8105e PA |
3919 | scoped_restore_current_pspace_and_thread restore_pspace_thread; |
3920 | ||
059acae7 | 3921 | switch_to_program_space_and_thread (sal->pspace); |
6c95b8df | 3922 | |
059acae7 UW |
3923 | sym = find_pc_sect_function (sal->pc, sal->section); |
3924 | if (sym != NULL) | |
bccdca4a | 3925 | { |
e19b2d94 | 3926 | objfile = sym->objfile (); |
6395b628 | 3927 | pc = sym->value_block ()->entry_pc (); |
ebbc3a7d | 3928 | section = sym->obj_section (objfile); |
987012b8 | 3929 | name = sym->linkage_name (); |
c906108c | 3930 | } |
059acae7 UW |
3931 | else |
3932 | { | |
7c7b6655 | 3933 | struct bound_minimal_symbol msymbol |
dda83cd7 | 3934 | = lookup_minimal_symbol_by_pc_section (sal->pc, sal->section); |
433759f7 | 3935 | |
7c7b6655 | 3936 | if (msymbol.minsym == NULL) |
5ed8105e | 3937 | return; |
059acae7 | 3938 | |
7c7b6655 | 3939 | objfile = msymbol.objfile; |
4aeddc50 | 3940 | pc = msymbol.value_address (); |
ebbc3a7d | 3941 | section = msymbol.minsym->obj_section (objfile); |
c9d95fa3 | 3942 | name = msymbol.minsym->linkage_name (); |
059acae7 UW |
3943 | } |
3944 | ||
08feed99 | 3945 | gdbarch = objfile->arch (); |
059acae7 | 3946 | |
8be455d7 JK |
3947 | /* Process the prologue in two passes. In the first pass try to skip the |
3948 | prologue (SKIP is true) and verify there is a real need for it (indicated | |
3949 | by FORCE_SKIP). If no such reason was found run a second pass where the | |
3950 | prologue is not skipped (SKIP is false). */ | |
059acae7 | 3951 | |
8be455d7 JK |
3952 | skip = 1; |
3953 | force_skip = 1; | |
059acae7 | 3954 | |
8be455d7 JK |
3955 | /* Be conservative - allow direct PC (without skipping prologue) only if we |
3956 | have proven the CU (Compilation Unit) supports it. sal->SYMTAB does not | |
3957 | have to be set by the caller so we use SYM instead. */ | |
08be3fe3 | 3958 | if (sym != NULL |
4206d69e | 3959 | && sym->symtab ()->compunit ()->locations_valid ()) |
8be455d7 | 3960 | force_skip = 0; |
059acae7 | 3961 | |
8be455d7 JK |
3962 | saved_pc = pc; |
3963 | do | |
c906108c | 3964 | { |
8be455d7 | 3965 | pc = saved_pc; |
4309257c | 3966 | |
cc96ae7f | 3967 | /* Check if the compiler explicitly indicated where a breakpoint should |
287de656 | 3968 | be placed to skip the prologue. */ |
6109f7a3 | 3969 | if (!ignore_prologue_end_flag && skip) |
cc96ae7f | 3970 | { |
6b09f134 | 3971 | std::optional<CORE_ADDR> linetable_pc |
cc96ae7f LS |
3972 | = skip_prologue_using_linetable (pc); |
3973 | if (linetable_pc) | |
3974 | { | |
3975 | pc = *linetable_pc; | |
3976 | start_sal = find_pc_sect_line (pc, section, 0); | |
3977 | force_skip = 1; | |
3978 | continue; | |
3979 | } | |
3980 | } | |
3981 | ||
8be455d7 JK |
3982 | /* If the function is in an unmapped overlay, use its unmapped LMA address, |
3983 | so that gdbarch_skip_prologue has something unique to work on. */ | |
3984 | if (section_is_overlay (section) && !section_is_mapped (section)) | |
3985 | pc = overlay_unmapped_address (pc, section); | |
3986 | ||
3987 | /* Skip "first line" of function (which is actually its prologue). */ | |
3988 | pc += gdbarch_deprecated_function_start_offset (gdbarch); | |
591a12a1 | 3989 | if (gdbarch_skip_entrypoint_p (gdbarch)) |
dda83cd7 | 3990 | pc = gdbarch_skip_entrypoint (gdbarch, pc); |
8be455d7 | 3991 | if (skip) |
46a62268 | 3992 | pc = gdbarch_skip_prologue_noexcept (gdbarch, pc); |
8be455d7 JK |
3993 | |
3994 | /* For overlays, map pc back into its mapped VMA range. */ | |
3995 | pc = overlay_mapped_address (pc, section); | |
3996 | ||
3997 | /* Calculate line number. */ | |
059acae7 | 3998 | start_sal = find_pc_sect_line (pc, section, 0); |
8be455d7 JK |
3999 | |
4000 | /* Check if gdbarch_skip_prologue left us in mid-line, and the next | |
4001 | line is still part of the same function. */ | |
4002 | if (skip && start_sal.pc != pc | |
6395b628 | 4003 | && (sym ? (sym->value_block ()->entry_pc () <= start_sal.end |
4b8791e1 | 4004 | && start_sal.end < sym->value_block()->end ()) |
7cbd4a93 TT |
4005 | : (lookup_minimal_symbol_by_pc_section (start_sal.end, section).minsym |
4006 | == lookup_minimal_symbol_by_pc_section (pc, section).minsym))) | |
8be455d7 JK |
4007 | { |
4008 | /* First pc of next line */ | |
4009 | pc = start_sal.end; | |
4010 | /* Recalculate the line number (might not be N+1). */ | |
4011 | start_sal = find_pc_sect_line (pc, section, 0); | |
4012 | } | |
4013 | ||
4014 | /* On targets with executable formats that don't have a concept of | |
4015 | constructors (ELF with .init has, PE doesn't), gcc emits a call | |
4016 | to `__main' in `main' between the prologue and before user | |
4017 | code. */ | |
4018 | if (gdbarch_skip_main_prologue_p (gdbarch) | |
7ccffd7c | 4019 | && name && strcmp_iw (name, "main") == 0) |
8be455d7 JK |
4020 | { |
4021 | pc = gdbarch_skip_main_prologue (gdbarch, pc); | |
4022 | /* Recalculate the line number (might not be N+1). */ | |
4023 | start_sal = find_pc_sect_line (pc, section, 0); | |
4024 | force_skip = 1; | |
4025 | } | |
4309257c | 4026 | } |
8be455d7 | 4027 | while (!force_skip && skip--); |
4309257c | 4028 | |
8c7a1ee8 EZ |
4029 | /* If we still don't have a valid source line, try to find the first |
4030 | PC in the lineinfo table that belongs to the same function. This | |
4031 | happens with COFF debug info, which does not seem to have an | |
4032 | entry in lineinfo table for the code after the prologue which has | |
4033 | no direct relation to source. For example, this was found to be | |
4034 | the case with the DJGPP target using "gcc -gcoff" when the | |
4035 | compiler inserted code after the prologue to make sure the stack | |
4036 | is aligned. */ | |
8be455d7 | 4037 | if (!force_skip && sym && start_sal.symtab == NULL) |
8c7a1ee8 | 4038 | { |
4206d69e | 4039 | pc = skip_prologue_using_lineinfo (pc, sym->symtab ()); |
8c7a1ee8 | 4040 | /* Recalculate the line number. */ |
059acae7 | 4041 | start_sal = find_pc_sect_line (pc, section, 0); |
8c7a1ee8 EZ |
4042 | } |
4043 | ||
059acae7 UW |
4044 | /* If we're already past the prologue, leave SAL unchanged. Otherwise |
4045 | forward SAL to the end of the prologue. */ | |
4046 | if (sal->pc >= pc) | |
4047 | return; | |
4048 | ||
4049 | sal->pc = pc; | |
4050 | sal->section = section; | |
059acae7 UW |
4051 | sal->symtab = start_sal.symtab; |
4052 | sal->line = start_sal.line; | |
4053 | sal->end = start_sal.end; | |
c906108c | 4054 | |
edb3359d DJ |
4055 | /* Check if we are now inside an inlined function. If we can, |
4056 | use the call site of the function instead. */ | |
059acae7 | 4057 | b = block_for_pc_sect (sal->pc, sal->section); |
edb3359d DJ |
4058 | function_block = NULL; |
4059 | while (b != NULL) | |
4060 | { | |
a4dfe747 | 4061 | if (b->function () != NULL && b->inlined_p ()) |
edb3359d | 4062 | function_block = b; |
6c00f721 | 4063 | else if (b->function () != NULL) |
edb3359d | 4064 | break; |
f135fe72 | 4065 | b = b->superblock (); |
edb3359d DJ |
4066 | } |
4067 | if (function_block != NULL | |
6c00f721 | 4068 | && function_block->function ()->line () != 0) |
edb3359d | 4069 | { |
6c00f721 SM |
4070 | sal->line = function_block->function ()->line (); |
4071 | sal->symtab = function_block->function ()->symtab (); | |
edb3359d | 4072 | } |
c906108c | 4073 | } |
50641945 | 4074 | |
f1f58506 DE |
4075 | /* Given PC at the function's start address, attempt to find the |
4076 | prologue end using SAL information. Return zero if the skip fails. | |
4077 | ||
4078 | A non-optimized prologue traditionally has one SAL for the function | |
4079 | and a second for the function body. A single line function has | |
4080 | them both pointing at the same line. | |
4081 | ||
4082 | An optimized prologue is similar but the prologue may contain | |
4083 | instructions (SALs) from the instruction body. Need to skip those | |
4084 | while not getting into the function body. | |
4085 | ||
4086 | The functions end point and an increasing SAL line are used as | |
4087 | indicators of the prologue's endpoint. | |
4088 | ||
4089 | This code is based on the function refine_prologue_limit | |
4090 | (found in ia64). */ | |
4091 | ||
4092 | CORE_ADDR | |
4093 | skip_prologue_using_sal (struct gdbarch *gdbarch, CORE_ADDR func_addr) | |
4094 | { | |
4095 | struct symtab_and_line prologue_sal; | |
4096 | CORE_ADDR start_pc; | |
4097 | CORE_ADDR end_pc; | |
4098 | const struct block *bl; | |
4099 | ||
4100 | /* Get an initial range for the function. */ | |
4101 | find_pc_partial_function (func_addr, NULL, &start_pc, &end_pc); | |
4102 | start_pc += gdbarch_deprecated_function_start_offset (gdbarch); | |
4103 | ||
4104 | prologue_sal = find_pc_line (start_pc, 0); | |
4105 | if (prologue_sal.line != 0) | |
4106 | { | |
4107 | /* For languages other than assembly, treat two consecutive line | |
4108 | entries at the same address as a zero-instruction prologue. | |
4109 | The GNU assembler emits separate line notes for each instruction | |
4110 | in a multi-instruction macro, but compilers generally will not | |
4111 | do this. */ | |
1ee2e9f9 | 4112 | if (prologue_sal.symtab->language () != language_asm) |
f1f58506 | 4113 | { |
1acc9dca TT |
4114 | struct objfile *objfile |
4115 | = prologue_sal.symtab->compunit ()->objfile (); | |
977a0c16 | 4116 | const linetable *linetable = prologue_sal.symtab->linetable (); |
e84060b4 | 4117 | gdb_assert (linetable->nitems > 0); |
f1f58506 DE |
4118 | int idx = 0; |
4119 | ||
4120 | /* Skip any earlier lines, and any end-of-sequence marker | |
4121 | from a previous function. */ | |
e84060b4 AB |
4122 | while (idx + 1 < linetable->nitems |
4123 | && (linetable->item[idx].pc (objfile) != prologue_sal.pc | |
4124 | || linetable->item[idx].line == 0)) | |
f1f58506 DE |
4125 | idx++; |
4126 | ||
e84060b4 | 4127 | if (idx + 1 < linetable->nitems |
f1f58506 | 4128 | && linetable->item[idx+1].line != 0 |
1acc9dca | 4129 | && linetable->item[idx+1].pc (objfile) == start_pc) |
f1f58506 DE |
4130 | return start_pc; |
4131 | } | |
4132 | ||
4133 | /* If there is only one sal that covers the entire function, | |
4134 | then it is probably a single line function, like | |
4135 | "foo(){}". */ | |
4136 | if (prologue_sal.end >= end_pc) | |
4137 | return 0; | |
4138 | ||
4139 | while (prologue_sal.end < end_pc) | |
4140 | { | |
4141 | struct symtab_and_line sal; | |
4142 | ||
4143 | sal = find_pc_line (prologue_sal.end, 0); | |
4144 | if (sal.line == 0) | |
4145 | break; | |
4146 | /* Assume that a consecutive SAL for the same (or larger) | |
4147 | line mark the prologue -> body transition. */ | |
4148 | if (sal.line >= prologue_sal.line) | |
4149 | break; | |
4150 | /* Likewise if we are in a different symtab altogether | |
4151 | (e.g. within a file included via #include). */ | |
4152 | if (sal.symtab != prologue_sal.symtab) | |
4153 | break; | |
4154 | ||
4155 | /* The line number is smaller. Check that it's from the | |
4156 | same function, not something inlined. If it's inlined, | |
4157 | then there is no point comparing the line numbers. */ | |
4158 | bl = block_for_pc (prologue_sal.end); | |
4159 | while (bl) | |
4160 | { | |
a4dfe747 | 4161 | if (bl->inlined_p ()) |
f1f58506 | 4162 | break; |
6c00f721 | 4163 | if (bl->function ()) |
f1f58506 DE |
4164 | { |
4165 | bl = NULL; | |
4166 | break; | |
4167 | } | |
f135fe72 | 4168 | bl = bl->superblock (); |
f1f58506 DE |
4169 | } |
4170 | if (bl != NULL) | |
4171 | break; | |
4172 | ||
4173 | /* The case in which compiler's optimizer/scheduler has | |
4174 | moved instructions into the prologue. We look ahead in | |
4175 | the function looking for address ranges whose | |
4176 | corresponding line number is less the first one that we | |
4177 | found for the function. This is more conservative then | |
4178 | refine_prologue_limit which scans a large number of SALs | |
4179 | looking for any in the prologue. */ | |
4180 | prologue_sal = sal; | |
4181 | } | |
4182 | } | |
4183 | ||
4184 | if (prologue_sal.end < end_pc) | |
4185 | /* Return the end of this line, or zero if we could not find a | |
4186 | line. */ | |
4187 | return prologue_sal.end; | |
4188 | else | |
4189 | /* Don't return END_PC, which is past the end of the function. */ | |
4190 | return prologue_sal.pc; | |
4191 | } | |
bf223d3e PA |
4192 | |
4193 | /* See symtab.h. */ | |
4194 | ||
528b729b GL |
4195 | std::optional<CORE_ADDR> |
4196 | find_epilogue_using_linetable (CORE_ADDR func_addr) | |
4197 | { | |
4198 | CORE_ADDR start_pc, end_pc; | |
4199 | ||
4200 | if (!find_pc_partial_function (func_addr, nullptr, &start_pc, &end_pc)) | |
4201 | return {}; | |
4202 | ||
4203 | const struct symtab_and_line sal = find_pc_line (start_pc, 0); | |
4204 | if (sal.symtab != nullptr && sal.symtab->language () != language_asm) | |
4205 | { | |
4206 | struct objfile *objfile = sal.symtab->compunit ()->objfile (); | |
4207 | unrelocated_addr unrel_start | |
4208 | = unrelocated_addr (start_pc - objfile->text_section_offset ()); | |
4209 | unrelocated_addr unrel_end | |
4210 | = unrelocated_addr (end_pc - objfile->text_section_offset ()); | |
4211 | ||
4212 | const linetable *linetable = sal.symtab->linetable (); | |
4213 | /* This should find the last linetable entry of the current function. | |
4214 | It is probably where the epilogue begins, but since the DWARF 5 | |
4215 | spec doesn't guarantee it, we iterate backwards through the function | |
4216 | until we either find it or are sure that it doesn't exist. */ | |
4217 | auto it = std::lower_bound | |
4218 | (linetable->item, linetable->item + linetable->nitems, unrel_end, | |
4219 | [] (const linetable_entry <e, unrelocated_addr pc) | |
4220 | { | |
4221 | return lte.unrelocated_pc () < pc; | |
4222 | }); | |
4223 | ||
4224 | while (it->unrelocated_pc () >= unrel_start) | |
4225 | { | |
4226 | if (it->epilogue_begin) | |
4227 | return {it->pc (objfile)}; | |
4228 | it --; | |
4229 | } | |
4230 | } | |
4231 | return {}; | |
4232 | } | |
4233 | ||
4234 | /* See symtab.h. */ | |
4235 | ||
bf223d3e PA |
4236 | symbol * |
4237 | find_function_alias_target (bound_minimal_symbol msymbol) | |
4238 | { | |
4024cf2b PA |
4239 | CORE_ADDR func_addr; |
4240 | if (!msymbol_is_function (msymbol.objfile, msymbol.minsym, &func_addr)) | |
bf223d3e PA |
4241 | return NULL; |
4242 | ||
4024cf2b | 4243 | symbol *sym = find_pc_function (func_addr); |
bf223d3e | 4244 | if (sym != NULL |
66d7f48f | 4245 | && sym->aclass () == LOC_BLOCK |
6395b628 | 4246 | && sym->value_block ()->entry_pc () == func_addr) |
bf223d3e PA |
4247 | return sym; |
4248 | ||
4249 | return NULL; | |
4250 | } | |
4251 | ||
f1f58506 | 4252 | \f |
c906108c SS |
4253 | /* If P is of the form "operator[ \t]+..." where `...' is |
4254 | some legitimate operator text, return a pointer to the | |
4255 | beginning of the substring of the operator text. | |
4256 | Otherwise, return "". */ | |
eca864fe | 4257 | |
96142726 TT |
4258 | static const char * |
4259 | operator_chars (const char *p, const char **end) | |
c906108c SS |
4260 | { |
4261 | *end = ""; | |
8090b426 | 4262 | if (!startswith (p, CP_OPERATOR_STR)) |
c906108c | 4263 | return *end; |
8090b426 | 4264 | p += CP_OPERATOR_LEN; |
c906108c SS |
4265 | |
4266 | /* Don't get faked out by `operator' being part of a longer | |
4267 | identifier. */ | |
c5aa993b | 4268 | if (isalpha (*p) || *p == '_' || *p == '$' || *p == '\0') |
c906108c SS |
4269 | return *end; |
4270 | ||
4271 | /* Allow some whitespace between `operator' and the operator symbol. */ | |
4272 | while (*p == ' ' || *p == '\t') | |
4273 | p++; | |
4274 | ||
c378eb4e | 4275 | /* Recognize 'operator TYPENAME'. */ |
c906108c | 4276 | |
c5aa993b | 4277 | if (isalpha (*p) || *p == '_' || *p == '$') |
c906108c | 4278 | { |
96142726 | 4279 | const char *q = p + 1; |
433759f7 | 4280 | |
c5aa993b | 4281 | while (isalnum (*q) || *q == '_' || *q == '$') |
c906108c SS |
4282 | q++; |
4283 | *end = q; | |
4284 | return p; | |
4285 | } | |
4286 | ||
53e8ad3d MS |
4287 | while (*p) |
4288 | switch (*p) | |
4289 | { | |
4290 | case '\\': /* regexp quoting */ | |
4291 | if (p[1] == '*') | |
4292 | { | |
3e43a32a | 4293 | if (p[2] == '=') /* 'operator\*=' */ |
53e8ad3d MS |
4294 | *end = p + 3; |
4295 | else /* 'operator\*' */ | |
4296 | *end = p + 2; | |
4297 | return p; | |
4298 | } | |
4299 | else if (p[1] == '[') | |
4300 | { | |
4301 | if (p[2] == ']') | |
3e43a32a MS |
4302 | error (_("mismatched quoting on brackets, " |
4303 | "try 'operator\\[\\]'")); | |
53e8ad3d MS |
4304 | else if (p[2] == '\\' && p[3] == ']') |
4305 | { | |
4306 | *end = p + 4; /* 'operator\[\]' */ | |
4307 | return p; | |
4308 | } | |
4309 | else | |
8a3fe4f8 | 4310 | error (_("nothing is allowed between '[' and ']'")); |
53e8ad3d | 4311 | } |
9af17804 | 4312 | else |
53e8ad3d | 4313 | { |
85102364 | 4314 | /* Gratuitous quote: skip it and move on. */ |
53e8ad3d MS |
4315 | p++; |
4316 | continue; | |
4317 | } | |
4318 | break; | |
4319 | case '!': | |
4320 | case '=': | |
4321 | case '*': | |
4322 | case '/': | |
4323 | case '%': | |
4324 | case '^': | |
4325 | if (p[1] == '=') | |
4326 | *end = p + 2; | |
4327 | else | |
4328 | *end = p + 1; | |
4329 | return p; | |
4330 | case '<': | |
4331 | case '>': | |
4332 | case '+': | |
4333 | case '-': | |
4334 | case '&': | |
4335 | case '|': | |
4336 | if (p[0] == '-' && p[1] == '>') | |
4337 | { | |
c378eb4e | 4338 | /* Struct pointer member operator 'operator->'. */ |
53e8ad3d MS |
4339 | if (p[2] == '*') |
4340 | { | |
4341 | *end = p + 3; /* 'operator->*' */ | |
4342 | return p; | |
4343 | } | |
4344 | else if (p[2] == '\\') | |
4345 | { | |
4346 | *end = p + 4; /* Hopefully 'operator->\*' */ | |
4347 | return p; | |
4348 | } | |
4349 | else | |
4350 | { | |
4351 | *end = p + 2; /* 'operator->' */ | |
4352 | return p; | |
4353 | } | |
4354 | } | |
4355 | if (p[1] == '=' || p[1] == p[0]) | |
4356 | *end = p + 2; | |
4357 | else | |
4358 | *end = p + 1; | |
4359 | return p; | |
4360 | case '~': | |
4361 | case ',': | |
c5aa993b | 4362 | *end = p + 1; |
53e8ad3d MS |
4363 | return p; |
4364 | case '(': | |
4365 | if (p[1] != ')') | |
3e43a32a MS |
4366 | error (_("`operator ()' must be specified " |
4367 | "without whitespace in `()'")); | |
c5aa993b | 4368 | *end = p + 2; |
53e8ad3d MS |
4369 | return p; |
4370 | case '?': | |
4371 | if (p[1] != ':') | |
3e43a32a MS |
4372 | error (_("`operator ?:' must be specified " |
4373 | "without whitespace in `?:'")); | |
53e8ad3d MS |
4374 | *end = p + 2; |
4375 | return p; | |
4376 | case '[': | |
4377 | if (p[1] != ']') | |
3e43a32a MS |
4378 | error (_("`operator []' must be specified " |
4379 | "without whitespace in `[]'")); | |
53e8ad3d MS |
4380 | *end = p + 2; |
4381 | return p; | |
4382 | default: | |
8a3fe4f8 | 4383 | error (_("`operator %s' not supported"), p); |
53e8ad3d MS |
4384 | break; |
4385 | } | |
4386 | ||
c906108c SS |
4387 | *end = ""; |
4388 | return *end; | |
4389 | } | |
c906108c | 4390 | \f |
c5aa993b | 4391 | |
4a0788e0 | 4392 | /* See class declaration. */ |
9fdc877b | 4393 | |
4a0788e0 | 4394 | info_sources_filter::info_sources_filter (match_on match_type, |
287de656 | 4395 | const char *regexp) |
4a0788e0 AB |
4396 | : m_match_type (match_type), |
4397 | m_regexp (regexp) | |
9fdc877b | 4398 | { |
4a0788e0 AB |
4399 | /* Setup the compiled regular expression M_C_REGEXP based on M_REGEXP. */ |
4400 | if (m_regexp != nullptr && *m_regexp != '\0') | |
4401 | { | |
4402 | gdb_assert (m_regexp != nullptr); | |
28cd9371 | 4403 | |
4a0788e0 AB |
4404 | int cflags = REG_NOSUB; |
4405 | #ifdef HAVE_CASE_INSENSITIVE_FILE_SYSTEM | |
4406 | cflags |= REG_ICASE; | |
4407 | #endif | |
4408 | m_c_regexp.emplace (m_regexp, cflags, _("Invalid regexp")); | |
4409 | } | |
4410 | } | |
28cd9371 | 4411 | |
4a0788e0 | 4412 | /* See class declaration. */ |
9fdc877b | 4413 | |
4a0788e0 AB |
4414 | bool |
4415 | info_sources_filter::matches (const char *fullname) const | |
4416 | { | |
4417 | /* Does it match regexp? */ | |
4418 | if (m_c_regexp.has_value ()) | |
4419 | { | |
4420 | const char *to_match; | |
4421 | std::string dirname; | |
4422 | ||
4423 | switch (m_match_type) | |
287de656 SM |
4424 | { |
4425 | case match_on::DIRNAME: | |
4426 | dirname = ldirname (fullname); | |
4427 | to_match = dirname.c_str (); | |
4428 | break; | |
4429 | case match_on::BASENAME: | |
4430 | to_match = lbasename (fullname); | |
4431 | break; | |
4432 | case match_on::FULLNAME: | |
4433 | to_match = fullname; | |
4434 | break; | |
b6aeb717 TT |
4435 | default: |
4436 | gdb_assert_not_reached ("bad m_match_type"); | |
287de656 | 4437 | } |
4a0788e0 AB |
4438 | |
4439 | if (m_c_regexp->exec (to_match, 0, NULL, 0) != 0) | |
287de656 | 4440 | return false; |
4a0788e0 AB |
4441 | } |
4442 | ||
4443 | return true; | |
4444 | } | |
4445 | ||
4a0788e0 AB |
4446 | /* Data structure to maintain the state used for printing the results of |
4447 | the 'info sources' command. */ | |
4448 | ||
4449 | struct output_source_filename_data | |
4450 | { | |
4451 | /* Create an object for displaying the results of the 'info sources' | |
0e350a05 AB |
4452 | command to UIOUT. FILTER must remain valid and unchanged for the |
4453 | lifetime of this object as this object retains a reference to FILTER. */ | |
4454 | output_source_filename_data (struct ui_out *uiout, | |
4455 | const info_sources_filter &filter) | |
4456 | : m_filter (filter), | |
4457 | m_uiout (uiout) | |
4a0788e0 AB |
4458 | { /* Nothing. */ } |
4459 | ||
4460 | DISABLE_COPY_AND_ASSIGN (output_source_filename_data); | |
4461 | ||
4462 | /* Reset enough state of this object so we can match against a new set of | |
4463 | files. The existing regular expression is retained though. */ | |
4464 | void reset_output () | |
4465 | { | |
4466 | m_first = true; | |
4467 | m_filename_seen_cache.clear (); | |
4468 | } | |
4469 | ||
0e350a05 AB |
4470 | /* Worker for sources_info, outputs the file name formatted for either |
4471 | cli or mi (based on the current_uiout). In cli mode displays | |
4472 | FULLNAME with a comma separating this name from any previously | |
4473 | printed name (line breaks are added at the comma). In MI mode | |
4474 | outputs a tuple containing DISP_NAME (the files display name), | |
4475 | FULLNAME, and EXPANDED_P (true when this file is from a fully | |
4476 | expanded symtab, otherwise false). */ | |
4477 | void output (const char *disp_name, const char *fullname, bool expanded_p); | |
eca864fe | 4478 | |
f4655dee TT |
4479 | /* An overload suitable for use as a callback to |
4480 | quick_symbol_functions::map_symbol_filenames. */ | |
4481 | void operator() (const char *filename, const char *fullname) | |
4482 | { | |
0e350a05 AB |
4483 | /* The false here indicates that this file is from an unexpanded |
4484 | symtab. */ | |
4485 | output (filename, fullname, false); | |
f4655dee | 4486 | } |
4a0788e0 | 4487 | |
bd742128 AB |
4488 | /* Return true if at least one filename has been printed (after a call to |
4489 | output) since either this object was created, or the last call to | |
4490 | reset_output. */ | |
4491 | bool printed_filename_p () const | |
4492 | { | |
4493 | return !m_first; | |
4494 | } | |
4495 | ||
4a0788e0 AB |
4496 | private: |
4497 | ||
4498 | /* Flag of whether we're printing the first one. */ | |
4499 | bool m_first = true; | |
4500 | ||
4501 | /* Cache of what we've seen so far. */ | |
4502 | filename_seen_cache m_filename_seen_cache; | |
4503 | ||
4504 | /* How source filename should be filtered. */ | |
4505 | const info_sources_filter &m_filter; | |
0e350a05 AB |
4506 | |
4507 | /* The object to which output is sent. */ | |
4508 | struct ui_out *m_uiout; | |
f4655dee TT |
4509 | }; |
4510 | ||
4a0788e0 AB |
4511 | /* See comment in class declaration above. */ |
4512 | ||
f4655dee | 4513 | void |
0e350a05 AB |
4514 | output_source_filename_data::output (const char *disp_name, |
4515 | const char *fullname, | |
4516 | bool expanded_p) | |
c94fdfd0 EZ |
4517 | { |
4518 | /* Since a single source file can result in several partial symbol | |
4519 | tables, we need to avoid printing it more than once. Note: if | |
4520 | some of the psymtabs are read in and some are not, it gets | |
4521 | printed both under "Source files for which symbols have been | |
4522 | read" and "Source files for which symbols will be read in on | |
4523 | demand". I consider this a reasonable way to deal with the | |
4524 | situation. I'm not sure whether this can also happen for | |
4525 | symtabs; it doesn't hurt to check. */ | |
4526 | ||
4a0788e0 | 4527 | /* Was NAME already seen? If so, then don't print it again. */ |
0e350a05 | 4528 | if (m_filename_seen_cache.seen (fullname)) |
4a0788e0 | 4529 | return; |
28cd9371 | 4530 | |
4a0788e0 | 4531 | /* If the filter rejects this file then don't print it. */ |
0e350a05 | 4532 | if (!m_filter.matches (fullname)) |
4a0788e0 | 4533 | return; |
28cd9371 | 4534 | |
0e350a05 AB |
4535 | ui_out_emit_tuple ui_emitter (m_uiout, nullptr); |
4536 | ||
28cd9371 | 4537 | /* Print it and reset *FIRST. */ |
4a0788e0 | 4538 | if (!m_first) |
0e350a05 | 4539 | m_uiout->text (", "); |
4a0788e0 | 4540 | m_first = false; |
c906108c | 4541 | |
1285ce86 | 4542 | m_uiout->wrap_hint (0); |
0e350a05 AB |
4543 | if (m_uiout->is_mi_like_p ()) |
4544 | { | |
4545 | m_uiout->field_string ("file", disp_name, file_name_style.style ()); | |
4546 | if (fullname != nullptr) | |
4547 | m_uiout->field_string ("fullname", fullname, | |
4548 | file_name_style.style ()); | |
4549 | m_uiout->field_string ("debug-fully-read", | |
4550 | (expanded_p ? "true" : "false")); | |
4551 | } | |
4552 | else | |
4553 | { | |
4554 | if (fullname == nullptr) | |
4555 | fullname = disp_name; | |
4556 | m_uiout->field_string ("fullname", fullname, | |
4557 | file_name_style.style ()); | |
4558 | } | |
c5aa993b | 4559 | } |
c906108c | 4560 | |
4a0788e0 AB |
4561 | /* For the 'info sources' command, what part of the file names should we be |
4562 | matching the user supplied regular expression against? */ | |
4563 | ||
4564 | struct filename_partial_match_opts | |
4565 | { | |
4566 | /* Only match the directory name part. */ | |
4567 | bool dirname = false; | |
4568 | ||
4569 | /* Only match the basename part. */ | |
4570 | bool basename = false; | |
4571 | }; | |
4572 | ||
28cd9371 PW |
4573 | using isrc_flag_option_def |
4574 | = gdb::option::flag_option_def<filename_partial_match_opts>; | |
4575 | ||
4576 | static const gdb::option::option_def info_sources_option_defs[] = { | |
4577 | ||
4578 | isrc_flag_option_def { | |
4579 | "dirname", | |
4580 | [] (filename_partial_match_opts *opts) { return &opts->dirname; }, | |
4581 | N_("Show only the files having a dirname matching REGEXP."), | |
4582 | }, | |
4583 | ||
4584 | isrc_flag_option_def { | |
4585 | "basename", | |
4586 | [] (filename_partial_match_opts *opts) { return &opts->basename; }, | |
4587 | N_("Show only the files having a basename matching REGEXP."), | |
4588 | }, | |
4589 | ||
4590 | }; | |
4591 | ||
4592 | /* Create an option_def_group for the "info sources" options, with | |
4593 | ISRC_OPTS as context. */ | |
4594 | ||
4595 | static inline gdb::option::option_def_group | |
4596 | make_info_sources_options_def_group (filename_partial_match_opts *isrc_opts) | |
4597 | { | |
4598 | return {{info_sources_option_defs}, isrc_opts}; | |
4599 | } | |
4600 | ||
28cd9371 PW |
4601 | /* Completer for "info sources". */ |
4602 | ||
4603 | static void | |
4604 | info_sources_command_completer (cmd_list_element *ignore, | |
4605 | completion_tracker &tracker, | |
4606 | const char *text, const char *word) | |
4607 | { | |
4608 | const auto group = make_info_sources_options_def_group (nullptr); | |
4609 | if (gdb::option::complete_options | |
4610 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
4611 | return; | |
4612 | } | |
4613 | ||
0e350a05 AB |
4614 | /* See symtab.h. */ |
4615 | ||
4616 | void | |
4617 | info_sources_worker (struct ui_out *uiout, | |
1fb1ce02 | 4618 | bool group_by_objfile, |
0e350a05 AB |
4619 | const info_sources_filter &filter) |
4620 | { | |
4621 | output_source_filename_data data (uiout, filter); | |
4622 | ||
4623 | ui_out_emit_list results_emitter (uiout, "files"); | |
6b09f134 LS |
4624 | std::optional<ui_out_emit_tuple> output_tuple; |
4625 | std::optional<ui_out_emit_list> sources_list; | |
0e350a05 | 4626 | |
bd742128 | 4627 | gdb_assert (group_by_objfile || uiout->is_mi_like_p ()); |
0e350a05 AB |
4628 | |
4629 | for (objfile *objfile : current_program_space->objfiles ()) | |
4630 | { | |
1fb1ce02 AB |
4631 | if (group_by_objfile) |
4632 | { | |
4633 | output_tuple.emplace (uiout, nullptr); | |
972f7a4b TT |
4634 | uiout->field_string ("filename", objfile_name (objfile), |
4635 | file_name_style.style ()); | |
bd742128 | 4636 | uiout->text (":\n"); |
1fb1ce02 | 4637 | bool debug_fully_readin = !objfile->has_unexpanded_symtabs (); |
bd742128 | 4638 | if (uiout->is_mi_like_p ()) |
1fb1ce02 | 4639 | { |
bd742128 AB |
4640 | const char *debug_info_state; |
4641 | if (objfile_has_symbols (objfile)) | |
4642 | { | |
4643 | if (debug_fully_readin) | |
4644 | debug_info_state = "fully-read"; | |
4645 | else | |
4646 | debug_info_state = "partially-read"; | |
4647 | } | |
1fb1ce02 | 4648 | else |
bd742128 AB |
4649 | debug_info_state = "none"; |
4650 | current_uiout->field_string ("debug-info", debug_info_state); | |
1fb1ce02 AB |
4651 | } |
4652 | else | |
bd742128 AB |
4653 | { |
4654 | if (!debug_fully_readin) | |
4655 | uiout->text ("(Full debug information has not yet been read " | |
4656 | "for this file.)\n"); | |
4657 | if (!objfile_has_symbols (objfile)) | |
4658 | uiout->text ("(Objfile has no debug information.)\n"); | |
4659 | uiout->text ("\n"); | |
4660 | } | |
1fb1ce02 AB |
4661 | sources_list.emplace (uiout, "sources"); |
4662 | } | |
4663 | ||
0e350a05 AB |
4664 | for (compunit_symtab *cu : objfile->compunits ()) |
4665 | { | |
102cc235 | 4666 | for (symtab *s : cu->filetabs ()) |
0e350a05 AB |
4667 | { |
4668 | const char *file = symtab_to_filename_for_display (s); | |
4669 | const char *fullname = symtab_to_fullname (s); | |
4670 | data.output (file, fullname, true); | |
4671 | } | |
4672 | } | |
1fb1ce02 AB |
4673 | |
4674 | if (group_by_objfile) | |
4675 | { | |
4676 | objfile->map_symbol_filenames (data, true /* need_fullname */); | |
bd742128 AB |
4677 | if (data.printed_filename_p ()) |
4678 | uiout->text ("\n\n"); | |
1fb1ce02 AB |
4679 | data.reset_output (); |
4680 | sources_list.reset (); | |
4681 | output_tuple.reset (); | |
4682 | } | |
0e350a05 AB |
4683 | } |
4684 | ||
1fb1ce02 AB |
4685 | if (!group_by_objfile) |
4686 | { | |
1fb1ce02 AB |
4687 | data.reset_output (); |
4688 | map_symbol_filenames (data, true /*need_fullname*/); | |
1fb1ce02 | 4689 | } |
0e350a05 AB |
4690 | } |
4691 | ||
4a0788e0 AB |
4692 | /* Implement the 'info sources' command. */ |
4693 | ||
28cd9371 PW |
4694 | static void |
4695 | info_sources_command (const char *args, int from_tty) | |
c906108c | 4696 | { |
c906108c | 4697 | if (!have_full_symbols () && !have_partial_symbols ()) |
4a0788e0 | 4698 | error (_("No symbol table is loaded. Use the \"file\" command.")); |
28cd9371 | 4699 | |
4a0788e0 AB |
4700 | filename_partial_match_opts match_opts; |
4701 | auto group = make_info_sources_options_def_group (&match_opts); | |
28cd9371 PW |
4702 | gdb::option::process_options |
4703 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_ERROR, group); | |
9fdc877b | 4704 | |
4a0788e0 AB |
4705 | if (match_opts.dirname && match_opts.basename) |
4706 | error (_("You cannot give both -basename and -dirname to 'info sources'.")); | |
c906108c | 4707 | |
4a0788e0 | 4708 | const char *regex = nullptr; |
0e350a05 | 4709 | if (args != NULL && *args != '\000') |
4a0788e0 | 4710 | regex = args; |
28cd9371 | 4711 | |
4a0788e0 AB |
4712 | if ((match_opts.dirname || match_opts.basename) && regex == nullptr) |
4713 | error (_("Missing REGEXP for 'info sources'.")); | |
28cd9371 | 4714 | |
4a0788e0 AB |
4715 | info_sources_filter::match_on match_type; |
4716 | if (match_opts.dirname) | |
4717 | match_type = info_sources_filter::match_on::DIRNAME; | |
4718 | else if (match_opts.basename) | |
4719 | match_type = info_sources_filter::match_on::BASENAME; | |
28cd9371 | 4720 | else |
4a0788e0 AB |
4721 | match_type = info_sources_filter::match_on::FULLNAME; |
4722 | ||
4723 | info_sources_filter filter (match_type, regex); | |
bd742128 | 4724 | info_sources_worker (current_uiout, true, filter); |
c906108c SS |
4725 | } |
4726 | ||
470c0b1c AB |
4727 | /* Compare FILE against all the entries of FILENAMES. If BASENAMES is |
4728 | true compare only lbasename of FILENAMES. */ | |
fbd9ab74 | 4729 | |
470c0b1c AB |
4730 | static bool |
4731 | file_matches (const char *file, const std::vector<const char *> &filenames, | |
4732 | bool basenames) | |
c906108c | 4733 | { |
470c0b1c AB |
4734 | if (filenames.empty ()) |
4735 | return true; | |
c906108c | 4736 | |
470c0b1c | 4737 | for (const char *name : filenames) |
c906108c | 4738 | { |
470c0b1c AB |
4739 | name = (basenames ? lbasename (name) : name); |
4740 | if (compare_filenames_for_search (file, name)) | |
4741 | return true; | |
c906108c | 4742 | } |
470c0b1c AB |
4743 | |
4744 | return false; | |
c906108c SS |
4745 | } |
4746 | ||
f97a63c5 AB |
4747 | /* Helper function for std::sort on symbol_search objects. Can only sort |
4748 | symbols, not minimal symbols. */ | |
eca864fe | 4749 | |
b9c04fb2 TT |
4750 | int |
4751 | symbol_search::compare_search_syms (const symbol_search &sym_a, | |
4752 | const symbol_search &sym_b) | |
434d2d4f | 4753 | { |
b52109bc DE |
4754 | int c; |
4755 | ||
4206d69e TT |
4756 | c = FILENAME_CMP (sym_a.symbol->symtab ()->filename, |
4757 | sym_b.symbol->symtab ()->filename); | |
b52109bc DE |
4758 | if (c != 0) |
4759 | return c; | |
434d2d4f | 4760 | |
b9c04fb2 TT |
4761 | if (sym_a.block != sym_b.block) |
4762 | return sym_a.block - sym_b.block; | |
b52109bc | 4763 | |
987012b8 | 4764 | return strcmp (sym_a.symbol->print_name (), sym_b.symbol->print_name ()); |
434d2d4f DJ |
4765 | } |
4766 | ||
12615cba PW |
4767 | /* Returns true if the type_name of symbol_type of SYM matches TREG. |
4768 | If SYM has no symbol_type or symbol_name, returns false. */ | |
4769 | ||
4770 | bool | |
4771 | treg_matches_sym_type_name (const compiled_regex &treg, | |
4772 | const struct symbol *sym) | |
4773 | { | |
4774 | struct type *sym_type; | |
4775 | std::string printed_sym_type_name; | |
4776 | ||
b1e678d9 AB |
4777 | symbol_lookup_debug_printf_v ("treg_matches_sym_type_name, sym %s", |
4778 | sym->natural_name ()); | |
12615cba | 4779 | |
5f9c5a63 | 4780 | sym_type = sym->type (); |
12615cba PW |
4781 | if (sym_type == NULL) |
4782 | return false; | |
4783 | ||
43d397ca PW |
4784 | { |
4785 | scoped_switch_to_sym_language_if_auto l (sym); | |
12615cba | 4786 | |
12615cba | 4787 | printed_sym_type_name = type_to_string (sym_type); |
43d397ca PW |
4788 | } |
4789 | ||
b1e678d9 AB |
4790 | symbol_lookup_debug_printf_v ("sym_type_name %s", |
4791 | printed_sym_type_name.c_str ()); | |
12615cba PW |
4792 | |
4793 | if (printed_sym_type_name.empty ()) | |
4794 | return false; | |
4795 | ||
4796 | return treg.exec (printed_sym_type_name.c_str (), 0, NULL, 0) == 0; | |
4797 | } | |
4798 | ||
f97a63c5 AB |
4799 | /* See symtab.h. */ |
4800 | ||
4801 | bool | |
4802 | global_symbol_searcher::is_suitable_msymbol | |
c92d4de1 | 4803 | (const domain_search_flags kind, const minimal_symbol *msymbol) |
f97a63c5 | 4804 | { |
60f62e2b | 4805 | switch (msymbol->type ()) |
f97a63c5 AB |
4806 | { |
4807 | case mst_data: | |
4808 | case mst_bss: | |
4809 | case mst_file_data: | |
4810 | case mst_file_bss: | |
c92d4de1 | 4811 | return (kind & SEARCH_VAR_DOMAIN) != 0; |
f97a63c5 AB |
4812 | case mst_text: |
4813 | case mst_file_text: | |
4814 | case mst_solib_trampoline: | |
4815 | case mst_text_gnu_ifunc: | |
c92d4de1 | 4816 | return (kind & SEARCH_FUNCTION_DOMAIN) != 0; |
f97a63c5 AB |
4817 | default: |
4818 | return false; | |
4819 | } | |
4820 | } | |
4821 | ||
4822 | /* See symtab.h. */ | |
4823 | ||
4824 | bool | |
4825 | global_symbol_searcher::expand_symtabs | |
6b09f134 | 4826 | (objfile *objfile, const std::optional<compiled_regex> &preg) const |
f97a63c5 | 4827 | { |
c92d4de1 | 4828 | domain_search_flags kind = m_kind; |
f97a63c5 AB |
4829 | bool found_msymbol = false; |
4830 | ||
c5a9fcdf TT |
4831 | auto do_file_match = [&] (const char *filename, bool basenames) |
4832 | { | |
4833 | return file_matches (filename, filenames, basenames); | |
4834 | }; | |
4835 | gdb::function_view<expand_symtabs_file_matcher_ftype> file_matcher = nullptr; | |
4836 | if (!filenames.empty ()) | |
4837 | file_matcher = do_file_match; | |
4838 | ||
4d080b46 | 4839 | objfile->expand_symtabs_matching |
c5a9fcdf | 4840 | (file_matcher, |
4d080b46 TT |
4841 | &lookup_name_info::match_any (), |
4842 | [&] (const char *symname) | |
4843 | { | |
4844 | return (!preg.has_value () | |
4845 | || preg->exec (symname, 0, NULL, 0) == 0); | |
4846 | }, | |
4847 | NULL, | |
03a8ea51 | 4848 | SEARCH_GLOBAL_BLOCK | SEARCH_STATIC_BLOCK, |
4d080b46 | 4849 | kind); |
f97a63c5 AB |
4850 | |
4851 | /* Here, we search through the minimal symbol tables for functions and | |
4852 | variables that match, and force their symbols to be read. This is in | |
4853 | particular necessary for demangled variable names, which are no longer | |
4854 | put into the partial symbol tables. The symbol will then be found | |
4855 | during the scan of symtabs later. | |
4856 | ||
4857 | For functions, find_pc_symtab should succeed if we have debug info for | |
4858 | the function, for variables we have to call | |
4859 | lookup_symbol_in_objfile_from_linkage_name to determine if the | |
4860 | variable has debug info. If the lookup fails, set found_msymbol so | |
4861 | that we will rescan to print any matching symbols without debug info. | |
4862 | We only search the objfile the msymbol came from, we no longer search | |
4863 | all objfiles. In large programs (1000s of shared libs) searching all | |
4864 | objfiles is not worth the pain. */ | |
4865 | if (filenames.empty () | |
c92d4de1 | 4866 | && (kind & (SEARCH_VAR_DOMAIN | SEARCH_FUNCTION_DOMAIN)) != 0) |
f97a63c5 AB |
4867 | { |
4868 | for (minimal_symbol *msymbol : objfile->msymbols ()) | |
4869 | { | |
4870 | QUIT; | |
4871 | ||
4872 | if (msymbol->created_by_gdb) | |
4873 | continue; | |
4874 | ||
4875 | if (is_suitable_msymbol (kind, msymbol)) | |
4876 | { | |
4877 | if (!preg.has_value () | |
4878 | || preg->exec (msymbol->natural_name (), 0, | |
4879 | NULL, 0) == 0) | |
4880 | { | |
4881 | /* An important side-effect of these lookup functions is | |
4882 | to expand the symbol table if msymbol is found, later | |
4883 | in the process we will add matching symbols or | |
4884 | msymbols to the results list, and that requires that | |
4885 | the symbols tables are expanded. */ | |
c92d4de1 | 4886 | if ((kind & SEARCH_FUNCTION_DOMAIN) != 0 |
f97a63c5 | 4887 | ? (find_pc_compunit_symtab |
4aeddc50 | 4888 | (msymbol->value_address (objfile)) == NULL) |
f97a63c5 AB |
4889 | : (lookup_symbol_in_objfile_from_linkage_name |
4890 | (objfile, msymbol->linkage_name (), | |
4891 | VAR_DOMAIN) | |
4892 | .symbol == NULL)) | |
4893 | found_msymbol = true; | |
4894 | } | |
4895 | } | |
4896 | } | |
4897 | } | |
4898 | ||
4899 | return found_msymbol; | |
4900 | } | |
4901 | ||
4902 | /* See symtab.h. */ | |
4903 | ||
c2512106 | 4904 | bool |
f97a63c5 AB |
4905 | global_symbol_searcher::add_matching_symbols |
4906 | (objfile *objfile, | |
6b09f134 LS |
4907 | const std::optional<compiled_regex> &preg, |
4908 | const std::optional<compiled_regex> &treg, | |
c2512106 | 4909 | std::set<symbol_search> *result_set) const |
f97a63c5 | 4910 | { |
c92d4de1 | 4911 | domain_search_flags kind = m_kind; |
f97a63c5 AB |
4912 | |
4913 | /* Add matching symbols (if not already present). */ | |
4914 | for (compunit_symtab *cust : objfile->compunits ()) | |
4915 | { | |
af39c5c8 | 4916 | const struct blockvector *bv = cust->blockvector (); |
f97a63c5 AB |
4917 | |
4918 | for (block_enum block : { GLOBAL_BLOCK, STATIC_BLOCK }) | |
4919 | { | |
63d609de | 4920 | const struct block *b = bv->block (block); |
f97a63c5 | 4921 | |
548a89df | 4922 | for (struct symbol *sym : block_iterator_range (b)) |
f97a63c5 | 4923 | { |
4206d69e | 4924 | struct symtab *real_symtab = sym->symtab (); |
f97a63c5 AB |
4925 | |
4926 | QUIT; | |
4927 | ||
4928 | /* Check first sole REAL_SYMTAB->FILENAME. It does | |
4929 | not need to be a substring of symtab_to_fullname as | |
4930 | it may contain "./" etc. */ | |
d4f48c1e TT |
4931 | if (!(file_matches (real_symtab->filename, filenames, false) |
4932 | || ((basenames_may_differ | |
4933 | || file_matches (lbasename (real_symtab->filename), | |
4934 | filenames, true)) | |
4935 | && file_matches (symtab_to_fullname (real_symtab), | |
4936 | filenames, false)))) | |
4937 | continue; | |
4938 | ||
4939 | if (preg.has_value () && !preg->exec (sym->natural_name (), 0, | |
4940 | nullptr, 0) == 0) | |
4941 | continue; | |
4942 | ||
4943 | bool matches = false; | |
c92d4de1 | 4944 | if (!matches && (kind & SEARCH_VAR_DOMAIN) != 0) |
d4f48c1e TT |
4945 | { |
4946 | if (sym->aclass () != LOC_TYPEDEF | |
4947 | && sym->aclass () != LOC_UNRESOLVED | |
4948 | && sym->aclass () != LOC_BLOCK | |
4949 | /* LOC_CONST can be used for more than | |
4950 | just enums, e.g., c++ static const | |
4951 | members. We only want to skip enums | |
4952 | here. */ | |
4953 | && !(sym->aclass () == LOC_CONST | |
4954 | && (sym->type ()->code () | |
4955 | == TYPE_CODE_ENUM)) | |
4956 | && (!treg.has_value () | |
4957 | || treg_matches_sym_type_name (*treg, sym))) | |
4958 | matches = true; | |
4959 | } | |
c92d4de1 | 4960 | if (!matches && (kind & SEARCH_FUNCTION_DOMAIN) != 0) |
d4f48c1e TT |
4961 | { |
4962 | if (sym->aclass () == LOC_BLOCK | |
4963 | && (!treg.has_value () | |
4964 | || treg_matches_sym_type_name (*treg, | |
4965 | sym))) | |
4966 | matches = true; | |
4967 | } | |
c92d4de1 | 4968 | if (!matches && (kind & SEARCH_TYPE_DOMAIN) != 0) |
d4f48c1e TT |
4969 | { |
4970 | if (sym->aclass () == LOC_TYPEDEF | |
4971 | && sym->domain () != MODULE_DOMAIN) | |
4972 | matches = true; | |
4973 | } | |
c92d4de1 | 4974 | if (!matches && (kind & SEARCH_MODULE_DOMAIN) != 0) |
d4f48c1e TT |
4975 | { |
4976 | if (sym->domain () == MODULE_DOMAIN | |
4977 | && sym->line () != 0) | |
4978 | matches = true; | |
4979 | } | |
4980 | if (matches) | |
f97a63c5 | 4981 | { |
c2512106 AB |
4982 | if (result_set->size () < m_max_search_results) |
4983 | { | |
4984 | /* Match, insert if not already in the results. */ | |
4985 | symbol_search ss (block, sym); | |
4986 | if (result_set->find (ss) == result_set->end ()) | |
4987 | result_set->insert (ss); | |
4988 | } | |
4989 | else | |
4990 | return false; | |
f97a63c5 AB |
4991 | } |
4992 | } | |
4993 | } | |
4994 | } | |
c2512106 AB |
4995 | |
4996 | return true; | |
f97a63c5 AB |
4997 | } |
4998 | ||
4999 | /* See symtab.h. */ | |
5000 | ||
c2512106 | 5001 | bool |
f97a63c5 | 5002 | global_symbol_searcher::add_matching_msymbols |
6b09f134 | 5003 | (objfile *objfile, const std::optional<compiled_regex> &preg, |
f97a63c5 AB |
5004 | std::vector<symbol_search> *results) const |
5005 | { | |
c92d4de1 | 5006 | domain_search_flags kind = m_kind; |
f97a63c5 AB |
5007 | |
5008 | for (minimal_symbol *msymbol : objfile->msymbols ()) | |
5009 | { | |
5010 | QUIT; | |
5011 | ||
5012 | if (msymbol->created_by_gdb) | |
5013 | continue; | |
5014 | ||
5015 | if (is_suitable_msymbol (kind, msymbol)) | |
5016 | { | |
5017 | if (!preg.has_value () | |
5018 | || preg->exec (msymbol->natural_name (), 0, | |
5019 | NULL, 0) == 0) | |
5020 | { | |
5021 | /* For functions we can do a quick check of whether the | |
5022 | symbol might be found via find_pc_symtab. */ | |
c92d4de1 | 5023 | if ((kind & SEARCH_FUNCTION_DOMAIN) == 0 |
f97a63c5 | 5024 | || (find_pc_compunit_symtab |
4aeddc50 | 5025 | (msymbol->value_address (objfile)) == NULL)) |
f97a63c5 AB |
5026 | { |
5027 | if (lookup_symbol_in_objfile_from_linkage_name | |
5028 | (objfile, msymbol->linkage_name (), | |
5029 | VAR_DOMAIN).symbol == NULL) | |
5030 | { | |
5031 | /* Matching msymbol, add it to the results list. */ | |
c2512106 AB |
5032 | if (results->size () < m_max_search_results) |
5033 | results->emplace_back (GLOBAL_BLOCK, msymbol, objfile); | |
5034 | else | |
5035 | return false; | |
f97a63c5 AB |
5036 | } |
5037 | } | |
5038 | } | |
5039 | } | |
5040 | } | |
12615cba | 5041 | |
c2512106 | 5042 | return true; |
434d2d4f | 5043 | } |
5bd98722 | 5044 | |
470c0b1c | 5045 | /* See symtab.h. */ |
c378eb4e | 5046 | |
b9c04fb2 | 5047 | std::vector<symbol_search> |
470c0b1c | 5048 | global_symbol_searcher::search () const |
c906108c | 5049 | { |
6b09f134 LS |
5050 | std::optional<compiled_regex> preg; |
5051 | std::optional<compiled_regex> treg; | |
c906108c | 5052 | |
470c0b1c | 5053 | if (m_symbol_name_regexp != NULL) |
c906108c | 5054 | { |
470c0b1c | 5055 | const char *symbol_name_regexp = m_symbol_name_regexp; |
9c48a8e6 | 5056 | std::string symbol_name_regexp_holder; |
470c0b1c | 5057 | |
c906108c | 5058 | /* Make sure spacing is right for C++ operators. |
dda83cd7 SM |
5059 | This is just a courtesy to make the matching less sensitive |
5060 | to how many spaces the user leaves between 'operator' | |
5061 | and <TYPENAME> or <OPERATOR>. */ | |
96142726 | 5062 | const char *opend; |
470c0b1c | 5063 | const char *opname = operator_chars (symbol_name_regexp, &opend); |
433759f7 | 5064 | |
c906108c | 5065 | if (*opname) |
c5aa993b | 5066 | { |
3e43a32a | 5067 | int fix = -1; /* -1 means ok; otherwise number of |
dda83cd7 | 5068 | spaces needed. */ |
433759f7 | 5069 | |
c5aa993b JM |
5070 | if (isalpha (*opname) || *opname == '_' || *opname == '$') |
5071 | { | |
c378eb4e | 5072 | /* There should 1 space between 'operator' and 'TYPENAME'. */ |
c5aa993b JM |
5073 | if (opname[-1] != ' ' || opname[-2] == ' ') |
5074 | fix = 1; | |
5075 | } | |
5076 | else | |
5077 | { | |
c378eb4e | 5078 | /* There should 0 spaces between 'operator' and 'OPERATOR'. */ |
c5aa993b JM |
5079 | if (opname[-1] == ' ') |
5080 | fix = 0; | |
5081 | } | |
c378eb4e | 5082 | /* If wrong number of spaces, fix it. */ |
c5aa993b JM |
5083 | if (fix >= 0) |
5084 | { | |
9c48a8e6 SM |
5085 | symbol_name_regexp_holder |
5086 | = string_printf ("operator%.*s%s", fix, " ", opname); | |
5087 | symbol_name_regexp = symbol_name_regexp_holder.c_str (); | |
c5aa993b JM |
5088 | } |
5089 | } | |
5090 | ||
2d7cc5c7 PA |
5091 | int cflags = REG_NOSUB | (case_sensitivity == case_sensitive_off |
5092 | ? REG_ICASE : 0); | |
470c0b1c AB |
5093 | preg.emplace (symbol_name_regexp, cflags, |
5094 | _("Invalid regexp")); | |
c906108c SS |
5095 | } |
5096 | ||
470c0b1c | 5097 | if (m_symbol_type_regexp != NULL) |
12615cba PW |
5098 | { |
5099 | int cflags = REG_NOSUB | (case_sensitivity == case_sensitive_off | |
5100 | ? REG_ICASE : 0); | |
470c0b1c AB |
5101 | treg.emplace (m_symbol_type_regexp, cflags, |
5102 | _("Invalid regexp")); | |
12615cba PW |
5103 | } |
5104 | ||
f97a63c5 | 5105 | bool found_msymbol = false; |
c2512106 | 5106 | std::set<symbol_search> result_set; |
2030c079 | 5107 | for (objfile *objfile : current_program_space->objfiles ()) |
d8aeb77f | 5108 | { |
f97a63c5 AB |
5109 | /* Expand symtabs within objfile that possibly contain matching |
5110 | symbols. */ | |
5111 | found_msymbol |= expand_symtabs (objfile, preg); | |
5112 | ||
c2512106 AB |
5113 | /* Find matching symbols within OBJFILE and add them in to the |
5114 | RESULT_SET set. Use a set here so that we can easily detect | |
5115 | duplicates as we go, and can therefore track how many unique | |
5116 | matches we have found so far. */ | |
5117 | if (!add_matching_symbols (objfile, preg, treg, &result_set)) | |
5118 | break; | |
d8aeb77f | 5119 | } |
c906108c | 5120 | |
c2512106 AB |
5121 | /* Convert the result set into a sorted result list, as std::set is |
5122 | defined to be sorted then no explicit call to std::sort is needed. */ | |
5123 | std::vector<symbol_search> result (result_set.begin (), result_set.end ()); | |
b52109bc | 5124 | |
470c0b1c | 5125 | /* If there are no debug symbols, then add matching minsyms. But if the |
f97a63c5 AB |
5126 | user wants to see symbols matching a type regexp, then never give a |
5127 | minimal symbol, as we assume that a minimal symbol does not have a | |
5128 | type. */ | |
c92d4de1 TT |
5129 | if ((found_msymbol |
5130 | || (filenames.empty () && (m_kind & SEARCH_VAR_DOMAIN) != 0)) | |
470c0b1c | 5131 | && !m_exclude_minsyms |
a8462bbf | 5132 | && !treg.has_value ()) |
c906108c | 5133 | { |
c92d4de1 TT |
5134 | gdb_assert ((m_kind & (SEARCH_VAR_DOMAIN | SEARCH_FUNCTION_DOMAIN)) |
5135 | != 0); | |
2030c079 | 5136 | for (objfile *objfile : current_program_space->objfiles ()) |
c2512106 AB |
5137 | if (!add_matching_msymbols (objfile, preg, &result)) |
5138 | break; | |
c906108c SS |
5139 | } |
5140 | ||
b9c04fb2 | 5141 | return result; |
c906108c SS |
5142 | } |
5143 | ||
5f512a7d | 5144 | /* See symtab.h. */ |
c378eb4e | 5145 | |
5f512a7d | 5146 | std::string |
d4bf9040 | 5147 | symbol_to_info_string (struct symbol *sym, int block) |
c906108c | 5148 | { |
5f512a7d | 5149 | std::string str; |
05cba821 | 5150 | |
5f512a7d | 5151 | gdb_assert (block == GLOBAL_BLOCK || block == STATIC_BLOCK); |
b744723f | 5152 | |
d4bf9040 TT |
5153 | if (block == STATIC_BLOCK |
5154 | && sym->domain () == VAR_DOMAIN | |
5155 | && sym->aclass () != LOC_TYPEDEF) | |
5f512a7d | 5156 | str += "static "; |
c5aa993b | 5157 | |
c378eb4e | 5158 | /* Typedef that is not a C++ class. */ |
d4bf9040 | 5159 | if (sym->domain () == VAR_DOMAIN && sym->aclass () == LOC_TYPEDEF) |
eb86c5e2 | 5160 | { |
5f512a7d AB |
5161 | string_file tmp_stream; |
5162 | ||
eb86c5e2 AB |
5163 | /* FIXME: For C (and C++) we end up with a difference in output here |
5164 | between how a typedef is printed, and non-typedefs are printed. | |
5165 | The TYPEDEF_PRINT code places a ";" at the end in an attempt to | |
5166 | appear C-like, while TYPE_PRINT doesn't. | |
5167 | ||
5168 | For the struct printing case below, things are worse, we force | |
5169 | printing of the ";" in this function, which is going to be wrong | |
5170 | for languages that don't require a ";" between statements. */ | |
5f9c5a63 SM |
5171 | if (sym->type ()->code () == TYPE_CODE_TYPEDEF) |
5172 | typedef_print (sym->type (), sym, &tmp_stream); | |
eb86c5e2 | 5173 | else |
5f9c5a63 | 5174 | type_print (sym->type (), "", &tmp_stream, -1); |
5f512a7d | 5175 | str += tmp_stream.string (); |
eb86c5e2 | 5176 | } |
c378eb4e | 5177 | /* variable, func, or typedef-that-is-c++-class. */ |
d4bf9040 | 5178 | else if (sym->domain () == VAR_DOMAIN || sym->domain () == STRUCT_DOMAIN) |
c906108c | 5179 | { |
5f512a7d AB |
5180 | string_file tmp_stream; |
5181 | ||
5f9c5a63 | 5182 | type_print (sym->type (), |
66d7f48f | 5183 | (sym->aclass () == LOC_TYPEDEF |
987012b8 | 5184 | ? "" : sym->print_name ()), |
5f512a7d | 5185 | &tmp_stream, 0); |
c906108c | 5186 | |
5f512a7d AB |
5187 | str += tmp_stream.string (); |
5188 | str += ";"; | |
c906108c | 5189 | } |
59c35742 AB |
5190 | /* Printing of modules is currently done here, maybe at some future |
5191 | point we might want a language specific method to print the module | |
5192 | symbol so that we can customise the output more. */ | |
d4bf9040 | 5193 | else if (sym->domain () == MODULE_DOMAIN) |
5f512a7d AB |
5194 | str += sym->print_name (); |
5195 | ||
5196 | return str; | |
5197 | } | |
5198 | ||
d4bf9040 TT |
5199 | /* Helper function for symbol info commands, for example 'info |
5200 | functions', 'info variables', etc. BLOCK is the type of block the | |
5201 | symbols was found in, either GLOBAL_BLOCK or STATIC_BLOCK. SYM is | |
5202 | the symbol we found. If LAST is not NULL, print file and line | |
5203 | number information for the symbol as well. Skip printing the | |
5204 | filename if it matches LAST. */ | |
5f512a7d AB |
5205 | |
5206 | static void | |
d4bf9040 | 5207 | print_symbol_info (struct symbol *sym, int block, const char *last) |
5f512a7d AB |
5208 | { |
5209 | scoped_switch_to_sym_language_if_auto l (sym); | |
4206d69e | 5210 | struct symtab *s = sym->symtab (); |
5f512a7d AB |
5211 | |
5212 | if (last != NULL) | |
5213 | { | |
5214 | const char *s_filename = symtab_to_filename_for_display (s); | |
5215 | ||
5216 | if (filename_cmp (last, s_filename) != 0) | |
5217 | { | |
6cb06a8c TT |
5218 | gdb_printf (_("\nFile %ps:\n"), |
5219 | styled_string (file_name_style.style (), | |
5220 | s_filename)); | |
5f512a7d AB |
5221 | } |
5222 | ||
5d0027b9 | 5223 | if (sym->line () != 0) |
6cb06a8c | 5224 | gdb_printf ("%d:\t", sym->line ()); |
5f512a7d | 5225 | else |
0426ad51 | 5226 | gdb_puts ("\t"); |
5f512a7d AB |
5227 | } |
5228 | ||
d4bf9040 | 5229 | std::string str = symbol_to_info_string (sym, block); |
6cb06a8c | 5230 | gdb_printf ("%s\n", str.c_str ()); |
c906108c SS |
5231 | } |
5232 | ||
5233 | /* This help function for symtab_symbol_info() prints information | |
c378eb4e MS |
5234 | for non-debugging symbols to gdb_stdout. */ |
5235 | ||
c906108c | 5236 | static void |
7c7b6655 | 5237 | print_msymbol_info (struct bound_minimal_symbol msymbol) |
c906108c | 5238 | { |
08feed99 | 5239 | struct gdbarch *gdbarch = msymbol.objfile->arch (); |
3ac4495a MS |
5240 | char *tmp; |
5241 | ||
d80b854b | 5242 | if (gdbarch_addr_bit (gdbarch) <= 32) |
4aeddc50 | 5243 | tmp = hex_string_custom (msymbol.value_address () |
bb599908 PH |
5244 | & (CORE_ADDR) 0xffffffff, |
5245 | 8); | |
3ac4495a | 5246 | else |
4aeddc50 | 5247 | tmp = hex_string_custom (msymbol.value_address (), |
bb599908 | 5248 | 16); |
6a831f06 PA |
5249 | |
5250 | ui_file_style sym_style = (msymbol.minsym->text_p () | |
5251 | ? function_name_style.style () | |
5252 | : ui_file_style ()); | |
5253 | ||
6cb06a8c TT |
5254 | gdb_printf (_("%ps %ps\n"), |
5255 | styled_string (address_style.style (), tmp), | |
5256 | styled_string (sym_style, msymbol.minsym->print_name ())); | |
c906108c SS |
5257 | } |
5258 | ||
5259 | /* This is the guts of the commands "info functions", "info types", and | |
c378eb4e | 5260 | "info variables". It calls search_symbols to find all matches and then |
c906108c | 5261 | print_[m]symbol_info to print out some useful information about the |
c378eb4e MS |
5262 | matches. */ |
5263 | ||
c906108c | 5264 | static void |
4acfdd20 | 5265 | symtab_symbol_info (bool quiet, bool exclude_minsyms, |
c92d4de1 | 5266 | const char *regexp, domain_enum kind, |
12615cba | 5267 | const char *t_regexp, int from_tty) |
c906108c | 5268 | { |
c7dcbf88 | 5269 | const char *last_filename = ""; |
c906108c SS |
5270 | int first = 1; |
5271 | ||
b16507e0 AB |
5272 | if (regexp != nullptr && *regexp == '\0') |
5273 | regexp = nullptr; | |
5274 | ||
c92d4de1 TT |
5275 | domain_search_flags flags = to_search_flags (kind); |
5276 | if (kind == TYPE_DOMAIN) | |
5277 | flags |= SEARCH_STRUCT_DOMAIN; | |
5278 | ||
5279 | global_symbol_searcher spec (flags, regexp); | |
470c0b1c AB |
5280 | spec.set_symbol_type_regexp (t_regexp); |
5281 | spec.set_exclude_minsyms (exclude_minsyms); | |
5282 | std::vector<symbol_search> symbols = spec.search (); | |
c906108c | 5283 | |
12615cba PW |
5284 | if (!quiet) |
5285 | { | |
c92d4de1 TT |
5286 | const char *classname; |
5287 | switch (kind) | |
5288 | { | |
5289 | case VAR_DOMAIN: | |
5290 | classname = "variable"; | |
5291 | break; | |
5292 | case FUNCTION_DOMAIN: | |
5293 | classname = "function"; | |
5294 | break; | |
5295 | case TYPE_DOMAIN: | |
5296 | classname = "type"; | |
5297 | break; | |
5298 | case MODULE_DOMAIN: | |
5299 | classname = "module"; | |
5300 | break; | |
5301 | default: | |
5302 | gdb_assert_not_reached ("invalid domain enum"); | |
5303 | } | |
5304 | ||
12615cba PW |
5305 | if (regexp != NULL) |
5306 | { | |
5307 | if (t_regexp != NULL) | |
6cb06a8c | 5308 | gdb_printf |
12615cba | 5309 | (_("All %ss matching regular expression \"%s\"" |
0c95f9ed | 5310 | " with type matching regular expression \"%s\":\n"), |
c92d4de1 | 5311 | classname, regexp, t_regexp); |
12615cba | 5312 | else |
6cb06a8c | 5313 | gdb_printf (_("All %ss matching regular expression \"%s\":\n"), |
c92d4de1 | 5314 | classname, regexp); |
12615cba PW |
5315 | } |
5316 | else | |
5317 | { | |
5318 | if (t_regexp != NULL) | |
6cb06a8c | 5319 | gdb_printf |
12615cba | 5320 | (_("All defined %ss" |
0c95f9ed | 5321 | " with type matching regular expression \"%s\" :\n"), |
c92d4de1 | 5322 | classname, t_regexp); |
12615cba | 5323 | else |
c92d4de1 | 5324 | gdb_printf (_("All defined %ss:\n"), classname); |
12615cba PW |
5325 | } |
5326 | } | |
c906108c | 5327 | |
b9c04fb2 | 5328 | for (const symbol_search &p : symbols) |
c906108c SS |
5329 | { |
5330 | QUIT; | |
5331 | ||
b9c04fb2 | 5332 | if (p.msymbol.minsym != NULL) |
c5aa993b JM |
5333 | { |
5334 | if (first) | |
5335 | { | |
12615cba | 5336 | if (!quiet) |
6cb06a8c | 5337 | gdb_printf (_("\nNon-debugging symbols:\n")); |
c5aa993b JM |
5338 | first = 0; |
5339 | } | |
b9c04fb2 | 5340 | print_msymbol_info (p.msymbol); |
c5aa993b | 5341 | } |
c906108c | 5342 | else |
c5aa993b | 5343 | { |
d4bf9040 | 5344 | print_symbol_info (p.symbol, p.block, last_filename); |
d01060f0 | 5345 | last_filename |
4206d69e | 5346 | = symtab_to_filename_for_display (p.symbol->symtab ()); |
c5aa993b | 5347 | } |
c906108c | 5348 | } |
c906108c SS |
5349 | } |
5350 | ||
4acfdd20 AB |
5351 | /* Structure to hold the values of the options used by the 'info variables' |
5352 | and 'info functions' commands. These correspond to the -q, -t, and -n | |
5353 | options. */ | |
5354 | ||
095252be | 5355 | struct info_vars_funcs_options |
4acfdd20 | 5356 | { |
491144b5 CB |
5357 | bool quiet = false; |
5358 | bool exclude_minsyms = false; | |
e0700ba4 | 5359 | std::string type_regexp; |
4acfdd20 AB |
5360 | }; |
5361 | ||
5362 | /* The options used by the 'info variables' and 'info functions' | |
5363 | commands. */ | |
5364 | ||
095252be AT |
5365 | static const gdb::option::option_def info_vars_funcs_options_defs[] = { |
5366 | gdb::option::boolean_option_def<info_vars_funcs_options> { | |
4acfdd20 | 5367 | "q", |
095252be | 5368 | [] (info_vars_funcs_options *opt) { return &opt->quiet; }, |
4acfdd20 AB |
5369 | nullptr, /* show_cmd_cb */ |
5370 | nullptr /* set_doc */ | |
5371 | }, | |
5372 | ||
095252be | 5373 | gdb::option::boolean_option_def<info_vars_funcs_options> { |
4acfdd20 | 5374 | "n", |
095252be | 5375 | [] (info_vars_funcs_options *opt) { return &opt->exclude_minsyms; }, |
4acfdd20 AB |
5376 | nullptr, /* show_cmd_cb */ |
5377 | nullptr /* set_doc */ | |
5378 | }, | |
5379 | ||
095252be | 5380 | gdb::option::string_option_def<info_vars_funcs_options> { |
4acfdd20 | 5381 | "t", |
e0700ba4 | 5382 | [] (info_vars_funcs_options *opt) { return &opt->type_regexp; }, |
4acfdd20 AB |
5383 | nullptr, /* show_cmd_cb */ |
5384 | nullptr /* set_doc */ | |
5385 | } | |
5386 | }; | |
5387 | ||
5388 | /* Returns the option group used by 'info variables' and 'info | |
5389 | functions'. */ | |
5390 | ||
5391 | static gdb::option::option_def_group | |
095252be | 5392 | make_info_vars_funcs_options_def_group (info_vars_funcs_options *opts) |
4acfdd20 | 5393 | { |
095252be | 5394 | return {{info_vars_funcs_options_defs}, opts}; |
4acfdd20 AB |
5395 | } |
5396 | ||
5397 | /* Command completer for 'info variables' and 'info functions'. */ | |
5398 | ||
5399 | static void | |
095252be AT |
5400 | info_vars_funcs_command_completer (struct cmd_list_element *ignore, |
5401 | completion_tracker &tracker, | |
5402 | const char *text, const char * /* word */) | |
4acfdd20 AB |
5403 | { |
5404 | const auto group | |
095252be | 5405 | = make_info_vars_funcs_options_def_group (nullptr); |
4acfdd20 AB |
5406 | if (gdb::option::complete_options |
5407 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
5408 | return; | |
5409 | ||
5410 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
5411 | symbol_completer (ignore, tracker, text, word); | |
5412 | } | |
5413 | ||
b16507e0 AB |
5414 | /* Implement the 'info variables' command. */ |
5415 | ||
0b39b52e | 5416 | static void |
12615cba | 5417 | info_variables_command (const char *args, int from_tty) |
0b39b52e | 5418 | { |
095252be AT |
5419 | info_vars_funcs_options opts; |
5420 | auto grp = make_info_vars_funcs_options_def_group (&opts); | |
4acfdd20 AB |
5421 | gdb::option::process_options |
5422 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5423 | if (args != nullptr && *args == '\0') | |
5424 | args = nullptr; | |
b16507e0 | 5425 | |
e0700ba4 | 5426 | symtab_symbol_info |
c92d4de1 | 5427 | (opts.quiet, opts.exclude_minsyms, args, VAR_DOMAIN, |
e0700ba4 SM |
5428 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), |
5429 | from_tty); | |
0b39b52e TT |
5430 | } |
5431 | ||
b16507e0 | 5432 | /* Implement the 'info functions' command. */ |
12615cba | 5433 | |
c906108c | 5434 | static void |
12615cba | 5435 | info_functions_command (const char *args, int from_tty) |
c906108c | 5436 | { |
095252be AT |
5437 | info_vars_funcs_options opts; |
5438 | ||
5439 | auto grp = make_info_vars_funcs_options_def_group (&opts); | |
4acfdd20 AB |
5440 | gdb::option::process_options |
5441 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5442 | if (args != nullptr && *args == '\0') | |
5443 | args = nullptr; | |
b16507e0 | 5444 | |
e0700ba4 | 5445 | symtab_symbol_info |
c92d4de1 | 5446 | (opts.quiet, opts.exclude_minsyms, args, FUNCTION_DOMAIN, |
e0700ba4 SM |
5447 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), |
5448 | from_tty); | |
c906108c SS |
5449 | } |
5450 | ||
a8eab7c6 AB |
5451 | /* Holds the -q option for the 'info types' command. */ |
5452 | ||
5453 | struct info_types_options | |
5454 | { | |
491144b5 | 5455 | bool quiet = false; |
a8eab7c6 AB |
5456 | }; |
5457 | ||
5458 | /* The options used by the 'info types' command. */ | |
5459 | ||
5460 | static const gdb::option::option_def info_types_options_defs[] = { | |
5461 | gdb::option::boolean_option_def<info_types_options> { | |
5462 | "q", | |
5463 | [] (info_types_options *opt) { return &opt->quiet; }, | |
5464 | nullptr, /* show_cmd_cb */ | |
5465 | nullptr /* set_doc */ | |
5466 | } | |
5467 | }; | |
5468 | ||
5469 | /* Returns the option group used by 'info types'. */ | |
5470 | ||
5471 | static gdb::option::option_def_group | |
5472 | make_info_types_options_def_group (info_types_options *opts) | |
5473 | { | |
5474 | return {{info_types_options_defs}, opts}; | |
5475 | } | |
5476 | ||
5477 | /* Implement the 'info types' command. */ | |
357e46e7 | 5478 | |
c906108c | 5479 | static void |
a8eab7c6 | 5480 | info_types_command (const char *args, int from_tty) |
c906108c | 5481 | { |
a8eab7c6 AB |
5482 | info_types_options opts; |
5483 | ||
5484 | auto grp = make_info_types_options_def_group (&opts); | |
5485 | gdb::option::process_options | |
5486 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5487 | if (args != nullptr && *args == '\0') | |
5488 | args = nullptr; | |
c92d4de1 TT |
5489 | symtab_symbol_info (opts.quiet, false, args, TYPE_DOMAIN, nullptr, |
5490 | from_tty); | |
a8eab7c6 AB |
5491 | } |
5492 | ||
5493 | /* Command completer for 'info types' command. */ | |
5494 | ||
5495 | static void | |
5496 | info_types_command_completer (struct cmd_list_element *ignore, | |
5497 | completion_tracker &tracker, | |
5498 | const char *text, const char * /* word */) | |
5499 | { | |
5500 | const auto group | |
5501 | = make_info_types_options_def_group (nullptr); | |
5502 | if (gdb::option::complete_options | |
5503 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
5504 | return; | |
5505 | ||
5506 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
5507 | symbol_completer (ignore, tracker, text, word); | |
c906108c SS |
5508 | } |
5509 | ||
59c35742 AB |
5510 | /* Implement the 'info modules' command. */ |
5511 | ||
5512 | static void | |
5513 | info_modules_command (const char *args, int from_tty) | |
5514 | { | |
5515 | info_types_options opts; | |
5516 | ||
5517 | auto grp = make_info_types_options_def_group (&opts); | |
5518 | gdb::option::process_options | |
5519 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5520 | if (args != nullptr && *args == '\0') | |
5521 | args = nullptr; | |
c92d4de1 | 5522 | symtab_symbol_info (opts.quiet, true, args, MODULE_DOMAIN, nullptr, |
59c35742 AB |
5523 | from_tty); |
5524 | } | |
5525 | ||
03d83cd5 RB |
5526 | /* Implement the 'info main' command. */ |
5527 | ||
5528 | static void | |
5529 | info_main_command (const char *args, int from_tty) | |
5530 | { | |
5531 | gdb_printf ("%s\n", main_name ()); | |
5532 | } | |
5533 | ||
c906108c | 5534 | static void |
0b39b52e | 5535 | rbreak_command (const char *regexp, int from_tty) |
c906108c | 5536 | { |
c80049d3 | 5537 | std::string string; |
470c0b1c | 5538 | const char *file_name = nullptr; |
c906108c | 5539 | |
470c0b1c | 5540 | if (regexp != nullptr) |
8bd10a10 | 5541 | { |
0b39b52e | 5542 | const char *colon = strchr (regexp, ':'); |
433759f7 | 5543 | |
2c074f49 HD |
5544 | /* Ignore the colon if it is part of a Windows drive. */ |
5545 | if (HAS_DRIVE_SPEC (regexp) | |
5546 | && (regexp[2] == '/' || regexp[2] == '\\')) | |
5547 | colon = strchr (STRIP_DRIVE_SPEC (regexp), ':'); | |
5548 | ||
8bd10a10 CM |
5549 | if (colon && *(colon + 1) != ':') |
5550 | { | |
5551 | int colon_index; | |
96142726 | 5552 | char *local_name; |
8bd10a10 CM |
5553 | |
5554 | colon_index = colon - regexp; | |
224c3ddb | 5555 | local_name = (char *) alloca (colon_index + 1); |
96142726 TT |
5556 | memcpy (local_name, regexp, colon_index); |
5557 | local_name[colon_index--] = 0; | |
5558 | while (isspace (local_name[colon_index])) | |
5559 | local_name[colon_index--] = 0; | |
5560 | file_name = local_name; | |
529480d0 | 5561 | regexp = skip_spaces (colon + 1); |
8bd10a10 CM |
5562 | } |
5563 | } | |
5564 | ||
c92d4de1 | 5565 | global_symbol_searcher spec (SEARCH_FUNCTION_DOMAIN, regexp); |
470c0b1c AB |
5566 | if (file_name != nullptr) |
5567 | spec.filenames.push_back (file_name); | |
5568 | std::vector<symbol_search> symbols = spec.search (); | |
c906108c | 5569 | |
c80049d3 | 5570 | scoped_rbreak_breakpoints finalize; |
b9c04fb2 | 5571 | for (const symbol_search &p : symbols) |
c906108c | 5572 | { |
b9c04fb2 | 5573 | if (p.msymbol.minsym == NULL) |
c5aa993b | 5574 | { |
4206d69e | 5575 | struct symtab *symtab = p.symbol->symtab (); |
d01060f0 | 5576 | const char *fullname = symtab_to_fullname (symtab); |
05cba821 | 5577 | |
c80049d3 | 5578 | string = string_printf ("%s:'%s'", fullname, |
987012b8 | 5579 | p.symbol->linkage_name ()); |
c80049d3 | 5580 | break_command (&string[0], from_tty); |
d4bf9040 | 5581 | print_symbol_info (p.symbol, p.block, nullptr); |
c5aa993b | 5582 | } |
c906108c | 5583 | else |
c5aa993b | 5584 | { |
c80049d3 | 5585 | string = string_printf ("'%s'", |
c9d95fa3 | 5586 | p.msymbol.minsym->linkage_name ()); |
6214f497 | 5587 | |
c80049d3 | 5588 | break_command (&string[0], from_tty); |
6cb06a8c TT |
5589 | gdb_printf ("<function, no debug info> %s;\n", |
5590 | p.msymbol.minsym->print_name ()); | |
c5aa993b | 5591 | } |
c906108c | 5592 | } |
c906108c | 5593 | } |
c906108c | 5594 | \f |
c5aa993b | 5595 | |
c62446b1 | 5596 | /* Evaluate if SYMNAME matches LOOKUP_NAME. */ |
1976171a JK |
5597 | |
5598 | static int | |
c62446b1 | 5599 | compare_symbol_name (const char *symbol_name, language symbol_language, |
b5ec771e | 5600 | const lookup_name_info &lookup_name, |
b5ec771e PA |
5601 | completion_match_result &match_res) |
5602 | { | |
d4c2a405 | 5603 | const language_defn *lang = language_def (symbol_language); |
1976171a | 5604 | |
b5ec771e | 5605 | symbol_name_matcher_ftype *name_match |
c9debfb9 | 5606 | = lang->get_symbol_name_matcher (lookup_name); |
1976171a | 5607 | |
a207cff2 | 5608 | return name_match (symbol_name, lookup_name, &match_res); |
1976171a JK |
5609 | } |
5610 | ||
b5ec771e | 5611 | /* See symtab.h. */ |
c906108c | 5612 | |
e08bd6c5 | 5613 | bool |
eb3ff9a5 | 5614 | completion_list_add_name (completion_tracker &tracker, |
b5ec771e | 5615 | language symbol_language, |
eb3ff9a5 | 5616 | const char *symname, |
b5ec771e | 5617 | const lookup_name_info &lookup_name, |
0d5cff50 | 5618 | const char *text, const char *word) |
c906108c | 5619 | { |
b5ec771e PA |
5620 | completion_match_result &match_res |
5621 | = tracker.reset_completion_match_result (); | |
5622 | ||
c378eb4e | 5623 | /* Clip symbols that cannot match. */ |
c62446b1 | 5624 | if (!compare_symbol_name (symname, symbol_language, lookup_name, match_res)) |
e08bd6c5 | 5625 | return false; |
c906108c | 5626 | |
b5ec771e PA |
5627 | /* Refresh SYMNAME from the match string. It's potentially |
5628 | different depending on language. (E.g., on Ada, the match may be | |
5629 | the encoded symbol name wrapped in "<>"). */ | |
5630 | symname = match_res.match.match (); | |
5631 | gdb_assert (symname != NULL); | |
5632 | ||
c906108c | 5633 | /* We have a match for a completion, so add SYMNAME to the current list |
c378eb4e | 5634 | of matches. Note that the name is moved to freshly malloc'd space. */ |
c906108c SS |
5635 | |
5636 | { | |
60a20c19 PA |
5637 | gdb::unique_xmalloc_ptr<char> completion |
5638 | = make_completion_match_str (symname, text, word); | |
ef0b411a | 5639 | |
a207cff2 PA |
5640 | /* Here we pass the match-for-lcd object to add_completion. Some |
5641 | languages match the user text against substrings of symbol | |
5642 | names in some cases. E.g., in C++, "b push_ba" completes to | |
5643 | "std::vector::push_back", "std::string::push_back", etc., and | |
5644 | in this case we want the completion lowest common denominator | |
5645 | to be "push_back" instead of "std::". */ | |
5646 | tracker.add_completion (std::move (completion), | |
a22ecf70 | 5647 | &match_res.match_for_lcd, text, word); |
c906108c | 5648 | } |
e08bd6c5 PA |
5649 | |
5650 | return true; | |
c906108c SS |
5651 | } |
5652 | ||
6da67eb1 PA |
5653 | /* completion_list_add_name wrapper for struct symbol. */ |
5654 | ||
5655 | static void | |
eb3ff9a5 PA |
5656 | completion_list_add_symbol (completion_tracker &tracker, |
5657 | symbol *sym, | |
b5ec771e | 5658 | const lookup_name_info &lookup_name, |
6da67eb1 PA |
5659 | const char *text, const char *word) |
5660 | { | |
e08bd6c5 PA |
5661 | if (!completion_list_add_name (tracker, sym->language (), |
5662 | sym->natural_name (), | |
5663 | lookup_name, text, word)) | |
5664 | return; | |
19a2740f AB |
5665 | |
5666 | /* C++ function symbols include the parameters within both the msymbol | |
5667 | name and the symbol name. The problem is that the msymbol name will | |
5668 | describe the parameters in the most basic way, with typedefs stripped | |
5669 | out, while the symbol name will represent the types as they appear in | |
5670 | the program. This means we will see duplicate entries in the | |
5671 | completion tracker. The following converts the symbol name back to | |
5672 | the msymbol name and removes the msymbol name from the completion | |
5673 | tracker. */ | |
5674 | if (sym->language () == language_cplus | |
66d7f48f | 5675 | && sym->aclass () == LOC_BLOCK) |
19a2740f AB |
5676 | { |
5677 | /* The call to canonicalize returns the empty string if the input | |
5678 | string is already in canonical form, thanks to this we don't | |
5679 | remove the symbol we just added above. */ | |
596dc4ad | 5680 | gdb::unique_xmalloc_ptr<char> str |
19a2740f | 5681 | = cp_canonicalize_string_no_typedefs (sym->natural_name ()); |
596dc4ad TT |
5682 | if (str != nullptr) |
5683 | tracker.remove_completion (str.get ()); | |
19a2740f | 5684 | } |
6da67eb1 PA |
5685 | } |
5686 | ||
5687 | /* completion_list_add_name wrapper for struct minimal_symbol. */ | |
5688 | ||
5689 | static void | |
eb3ff9a5 PA |
5690 | completion_list_add_msymbol (completion_tracker &tracker, |
5691 | minimal_symbol *sym, | |
b5ec771e | 5692 | const lookup_name_info &lookup_name, |
6da67eb1 PA |
5693 | const char *text, const char *word) |
5694 | { | |
c1b5c1eb | 5695 | completion_list_add_name (tracker, sym->language (), |
c9d95fa3 | 5696 | sym->natural_name (), |
1b026119 | 5697 | lookup_name, text, word); |
6da67eb1 PA |
5698 | } |
5699 | ||
b5ec771e | 5700 | |
69636828 AF |
5701 | /* ObjC: In case we are completing on a selector, look as the msymbol |
5702 | again and feed all the selectors into the mill. */ | |
5703 | ||
5704 | static void | |
eb3ff9a5 PA |
5705 | completion_list_objc_symbol (completion_tracker &tracker, |
5706 | struct minimal_symbol *msymbol, | |
b5ec771e | 5707 | const lookup_name_info &lookup_name, |
0d5cff50 | 5708 | const char *text, const char *word) |
69636828 AF |
5709 | { |
5710 | static char *tmp = NULL; | |
5711 | static unsigned int tmplen = 0; | |
9af17804 | 5712 | |
0d5cff50 | 5713 | const char *method, *category, *selector; |
69636828 | 5714 | char *tmp2 = NULL; |
9af17804 | 5715 | |
c9d95fa3 | 5716 | method = msymbol->natural_name (); |
69636828 AF |
5717 | |
5718 | /* Is it a method? */ | |
5719 | if ((method[0] != '-') && (method[0] != '+')) | |
5720 | return; | |
5721 | ||
1b026119 | 5722 | if (text[0] == '[') |
69636828 | 5723 | /* Complete on shortened method method. */ |
b5ec771e PA |
5724 | completion_list_add_name (tracker, language_objc, |
5725 | method + 1, | |
5726 | lookup_name, | |
1b026119 | 5727 | text, word); |
9af17804 | 5728 | |
69636828 AF |
5729 | while ((strlen (method) + 1) >= tmplen) |
5730 | { | |
5731 | if (tmplen == 0) | |
5732 | tmplen = 1024; | |
5733 | else | |
5734 | tmplen *= 2; | |
224c3ddb | 5735 | tmp = (char *) xrealloc (tmp, tmplen); |
69636828 AF |
5736 | } |
5737 | selector = strchr (method, ' '); | |
5738 | if (selector != NULL) | |
5739 | selector++; | |
9af17804 | 5740 | |
69636828 | 5741 | category = strchr (method, '('); |
9af17804 | 5742 | |
69636828 AF |
5743 | if ((category != NULL) && (selector != NULL)) |
5744 | { | |
5745 | memcpy (tmp, method, (category - method)); | |
5746 | tmp[category - method] = ' '; | |
5747 | memcpy (tmp + (category - method) + 1, selector, strlen (selector) + 1); | |
b5ec771e | 5748 | completion_list_add_name (tracker, language_objc, tmp, |
1b026119 PA |
5749 | lookup_name, text, word); |
5750 | if (text[0] == '[') | |
b5ec771e | 5751 | completion_list_add_name (tracker, language_objc, tmp + 1, |
1b026119 | 5752 | lookup_name, text, word); |
69636828 | 5753 | } |
9af17804 | 5754 | |
69636828 AF |
5755 | if (selector != NULL) |
5756 | { | |
5757 | /* Complete on selector only. */ | |
5758 | strcpy (tmp, selector); | |
5759 | tmp2 = strchr (tmp, ']'); | |
5760 | if (tmp2 != NULL) | |
5761 | *tmp2 = '\0'; | |
9af17804 | 5762 | |
b5ec771e | 5763 | completion_list_add_name (tracker, language_objc, tmp, |
1b026119 | 5764 | lookup_name, text, word); |
69636828 AF |
5765 | } |
5766 | } | |
5767 | ||
5768 | /* Break the non-quoted text based on the characters which are in | |
c378eb4e | 5769 | symbols. FIXME: This should probably be language-specific. */ |
69636828 | 5770 | |
6f937416 PA |
5771 | static const char * |
5772 | language_search_unquoted_string (const char *text, const char *p) | |
69636828 AF |
5773 | { |
5774 | for (; p > text; --p) | |
5775 | { | |
5776 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0') | |
5777 | continue; | |
5778 | else | |
5779 | { | |
5780 | if ((current_language->la_language == language_objc)) | |
5781 | { | |
c378eb4e | 5782 | if (p[-1] == ':') /* Might be part of a method name. */ |
69636828 AF |
5783 | continue; |
5784 | else if (p[-1] == '[' && (p[-2] == '-' || p[-2] == '+')) | |
c378eb4e | 5785 | p -= 2; /* Beginning of a method name. */ |
69636828 | 5786 | else if (p[-1] == ' ' || p[-1] == '(' || p[-1] == ')') |
c378eb4e | 5787 | { /* Might be part of a method name. */ |
6f937416 | 5788 | const char *t = p; |
69636828 AF |
5789 | |
5790 | /* Seeing a ' ' or a '(' is not conclusive evidence | |
5791 | that we are in the middle of a method name. However, | |
5792 | finding "-[" or "+[" should be pretty un-ambiguous. | |
5793 | Unfortunately we have to find it now to decide. */ | |
5794 | ||
5795 | while (t > text) | |
5796 | if (isalnum (t[-1]) || t[-1] == '_' || | |
5797 | t[-1] == ' ' || t[-1] == ':' || | |
5798 | t[-1] == '(' || t[-1] == ')') | |
5799 | --t; | |
5800 | else | |
5801 | break; | |
5802 | ||
5803 | if (t[-1] == '[' && (t[-2] == '-' || t[-2] == '+')) | |
c378eb4e MS |
5804 | p = t - 2; /* Method name detected. */ |
5805 | /* Else we leave with p unchanged. */ | |
69636828 AF |
5806 | } |
5807 | } | |
5808 | break; | |
5809 | } | |
5810 | } | |
5811 | return p; | |
5812 | } | |
5813 | ||
edb3359d | 5814 | static void |
eb3ff9a5 PA |
5815 | completion_list_add_fields (completion_tracker &tracker, |
5816 | struct symbol *sym, | |
b5ec771e | 5817 | const lookup_name_info &lookup_name, |
eb3ff9a5 | 5818 | const char *text, const char *word) |
edb3359d | 5819 | { |
66d7f48f | 5820 | if (sym->aclass () == LOC_TYPEDEF) |
edb3359d | 5821 | { |
5f9c5a63 | 5822 | struct type *t = sym->type (); |
78134374 | 5823 | enum type_code c = t->code (); |
edb3359d DJ |
5824 | int j; |
5825 | ||
5826 | if (c == TYPE_CODE_UNION || c == TYPE_CODE_STRUCT) | |
1f704f76 | 5827 | for (j = TYPE_N_BASECLASSES (t); j < t->num_fields (); j++) |
33d16dd9 | 5828 | if (t->field (j).name ()) |
c1b5c1eb | 5829 | completion_list_add_name (tracker, sym->language (), |
33d16dd9 | 5830 | t->field (j).name (), |
1b026119 | 5831 | lookup_name, text, word); |
edb3359d DJ |
5832 | } |
5833 | } | |
5834 | ||
f9d67a22 PA |
5835 | /* See symtab.h. */ |
5836 | ||
5837 | bool | |
5838 | symbol_is_function_or_method (symbol *sym) | |
5839 | { | |
5f9c5a63 | 5840 | switch (sym->type ()->code ()) |
f9d67a22 PA |
5841 | { |
5842 | case TYPE_CODE_FUNC: | |
5843 | case TYPE_CODE_METHOD: | |
5844 | return true; | |
5845 | default: | |
5846 | return false; | |
5847 | } | |
5848 | } | |
5849 | ||
5850 | /* See symtab.h. */ | |
5851 | ||
5852 | bool | |
5853 | symbol_is_function_or_method (minimal_symbol *msymbol) | |
5854 | { | |
60f62e2b | 5855 | switch (msymbol->type ()) |
f9d67a22 PA |
5856 | { |
5857 | case mst_text: | |
5858 | case mst_text_gnu_ifunc: | |
5859 | case mst_solib_trampoline: | |
5860 | case mst_file_text: | |
5861 | return true; | |
5862 | default: | |
5863 | return false; | |
5864 | } | |
5865 | } | |
5866 | ||
ca31ab1d PA |
5867 | /* See symtab.h. */ |
5868 | ||
5869 | bound_minimal_symbol | |
5870 | find_gnu_ifunc (const symbol *sym) | |
5871 | { | |
66d7f48f | 5872 | if (sym->aclass () != LOC_BLOCK) |
ca31ab1d PA |
5873 | return {}; |
5874 | ||
987012b8 | 5875 | lookup_name_info lookup_name (sym->search_name (), |
ca31ab1d | 5876 | symbol_name_match_type::SEARCH_NAME); |
e19b2d94 | 5877 | struct objfile *objfile = sym->objfile (); |
ca31ab1d | 5878 | |
6395b628 | 5879 | CORE_ADDR address = sym->value_block ()->entry_pc (); |
ca31ab1d PA |
5880 | minimal_symbol *ifunc = NULL; |
5881 | ||
5882 | iterate_over_minimal_symbols (objfile, lookup_name, | |
5883 | [&] (minimal_symbol *minsym) | |
5884 | { | |
60f62e2b SM |
5885 | if (minsym->type () == mst_text_gnu_ifunc |
5886 | || minsym->type () == mst_data_gnu_ifunc) | |
ca31ab1d | 5887 | { |
4aeddc50 | 5888 | CORE_ADDR msym_addr = minsym->value_address (objfile); |
60f62e2b | 5889 | if (minsym->type () == mst_data_gnu_ifunc) |
f50776aa | 5890 | { |
08feed99 | 5891 | struct gdbarch *gdbarch = objfile->arch (); |
328d42d8 SM |
5892 | msym_addr = gdbarch_convert_from_func_ptr_addr |
5893 | (gdbarch, msym_addr, current_inferior ()->top_target ()); | |
f50776aa PA |
5894 | } |
5895 | if (msym_addr == address) | |
5896 | { | |
5897 | ifunc = minsym; | |
5898 | return true; | |
5899 | } | |
ca31ab1d PA |
5900 | } |
5901 | return false; | |
5902 | }); | |
5903 | ||
5904 | if (ifunc != NULL) | |
5905 | return {ifunc, objfile}; | |
5906 | return {}; | |
5907 | } | |
5908 | ||
e11c72c7 GB |
5909 | /* Add matching symbols from SYMTAB to the current completion list. */ |
5910 | ||
5911 | static void | |
5912 | add_symtab_completions (struct compunit_symtab *cust, | |
eb3ff9a5 | 5913 | completion_tracker &tracker, |
f9d67a22 | 5914 | complete_symbol_mode mode, |
b5ec771e | 5915 | const lookup_name_info &lookup_name, |
e11c72c7 GB |
5916 | const char *text, const char *word, |
5917 | enum type_code code) | |
5918 | { | |
e11c72c7 GB |
5919 | int i; |
5920 | ||
ff6fa247 GB |
5921 | if (cust == NULL) |
5922 | return; | |
5923 | ||
e11c72c7 GB |
5924 | for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++) |
5925 | { | |
5926 | QUIT; | |
63d609de SM |
5927 | |
5928 | const struct block *b = cust->blockvector ()->block (i); | |
548a89df | 5929 | for (struct symbol *sym : block_iterator_range (b)) |
e11c72c7 | 5930 | { |
f9d67a22 PA |
5931 | if (completion_skip_symbol (mode, sym)) |
5932 | continue; | |
5933 | ||
e11c72c7 | 5934 | if (code == TYPE_CODE_UNDEF |
6c9c307c | 5935 | || (sym->domain () == STRUCT_DOMAIN |
5f9c5a63 | 5936 | && sym->type ()->code () == code)) |
eb3ff9a5 | 5937 | completion_list_add_symbol (tracker, sym, |
b5ec771e | 5938 | lookup_name, |
e11c72c7 GB |
5939 | text, word); |
5940 | } | |
5941 | } | |
5942 | } | |
5943 | ||
eb3ff9a5 PA |
5944 | void |
5945 | default_collect_symbol_completion_matches_break_on | |
b5ec771e PA |
5946 | (completion_tracker &tracker, complete_symbol_mode mode, |
5947 | symbol_name_match_type name_match_type, | |
eb3ff9a5 PA |
5948 | const char *text, const char *word, |
5949 | const char *break_on, enum type_code code) | |
c906108c | 5950 | { |
41d27058 JB |
5951 | /* Problem: All of the symbols have to be copied because readline |
5952 | frees them. I'm not going to worry about this; hopefully there | |
5953 | won't be that many. */ | |
5954 | ||
3977b71f | 5955 | const struct block *b; |
edb3359d | 5956 | const struct block *surrounding_static_block, *surrounding_global_block; |
c906108c | 5957 | /* The symbol we are completing on. Points in same buffer as text. */ |
6f937416 | 5958 | const char *sym_text; |
c906108c | 5959 | |
41d27058 | 5960 | /* Now look for the symbol we are supposed to complete on. */ |
c6756f62 PA |
5961 | if (mode == complete_symbol_mode::LINESPEC) |
5962 | sym_text = text; | |
5963 | else | |
01add95b SM |
5964 | { |
5965 | const char *p; | |
5966 | char quote_found; | |
5967 | const char *quote_pos = NULL; | |
c906108c | 5968 | |
01add95b SM |
5969 | /* First see if this is a quoted string. */ |
5970 | quote_found = '\0'; | |
5971 | for (p = text; *p != '\0'; ++p) | |
5972 | { | |
5973 | if (quote_found != '\0') | |
5974 | { | |
5975 | if (*p == quote_found) | |
5976 | /* Found close quote. */ | |
5977 | quote_found = '\0'; | |
5978 | else if (*p == '\\' && p[1] == quote_found) | |
5979 | /* A backslash followed by the quote character | |
5980 | doesn't end the string. */ | |
5981 | ++p; | |
5982 | } | |
5983 | else if (*p == '\'' || *p == '"') | |
5984 | { | |
5985 | quote_found = *p; | |
5986 | quote_pos = p; | |
5987 | } | |
5988 | } | |
5989 | if (quote_found == '\'') | |
5990 | /* A string within single quotes can be a symbol, so complete on it. */ | |
5991 | sym_text = quote_pos + 1; | |
5992 | else if (quote_found == '"') | |
5993 | /* A double-quoted string is never a symbol, nor does it make sense | |
5994 | to complete it any other way. */ | |
5995 | { | |
5996 | return; | |
5997 | } | |
5998 | else | |
5999 | { | |
6000 | /* It is not a quoted string. Break it based on the characters | |
6001 | which are in symbols. */ | |
6002 | while (p > text) | |
6003 | { | |
6004 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0' | |
6005 | || p[-1] == ':' || strchr (break_on, p[-1]) != NULL) | |
6006 | --p; | |
6007 | else | |
6008 | break; | |
6009 | } | |
6010 | sym_text = p; | |
6011 | } | |
6012 | } | |
c906108c | 6013 | |
1b026119 | 6014 | lookup_name_info lookup_name (sym_text, name_match_type, true); |
b5ec771e | 6015 | |
c906108c SS |
6016 | /* At this point scan through the misc symbol vectors and add each |
6017 | symbol you find to the list. Eventually we want to ignore | |
6018 | anything that isn't a text symbol (everything else will be | |
e11c72c7 | 6019 | handled by the psymtab code below). */ |
c906108c | 6020 | |
2f68a895 TT |
6021 | if (code == TYPE_CODE_UNDEF) |
6022 | { | |
2030c079 | 6023 | for (objfile *objfile : current_program_space->objfiles ()) |
2f68a895 | 6024 | { |
7932255d | 6025 | for (minimal_symbol *msymbol : objfile->msymbols ()) |
5325b9bf TT |
6026 | { |
6027 | QUIT; | |
9af17804 | 6028 | |
5325b9bf TT |
6029 | if (completion_skip_symbol (mode, msymbol)) |
6030 | continue; | |
f9d67a22 | 6031 | |
5325b9bf TT |
6032 | completion_list_add_msymbol (tracker, msymbol, lookup_name, |
6033 | sym_text, word); | |
eb3ff9a5 | 6034 | |
5325b9bf TT |
6035 | completion_list_objc_symbol (tracker, msymbol, lookup_name, |
6036 | sym_text, word); | |
6037 | } | |
2f68a895 TT |
6038 | } |
6039 | } | |
c906108c | 6040 | |
e11c72c7 | 6041 | /* Add completions for all currently loaded symbol tables. */ |
2030c079 | 6042 | for (objfile *objfile : current_program_space->objfiles ()) |
d8aeb77f | 6043 | { |
b669c953 | 6044 | for (compunit_symtab *cust : objfile->compunits ()) |
d8aeb77f TT |
6045 | add_symtab_completions (cust, tracker, mode, lookup_name, |
6046 | sym_text, word, code); | |
6047 | } | |
e11c72c7 | 6048 | |
14bc53a8 PA |
6049 | /* Look through the partial symtabs for all symbols which begin by |
6050 | matching SYM_TEXT. Expand all CUs that you find to the list. */ | |
6051 | expand_symtabs_matching (NULL, | |
b5ec771e PA |
6052 | lookup_name, |
6053 | NULL, | |
14bc53a8 PA |
6054 | [&] (compunit_symtab *symtab) /* expansion notify */ |
6055 | { | |
6056 | add_symtab_completions (symtab, | |
f9d67a22 | 6057 | tracker, mode, lookup_name, |
1b026119 | 6058 | sym_text, word, code); |
df35e626 | 6059 | return true; |
14bc53a8 | 6060 | }, |
03a8ea51 | 6061 | SEARCH_GLOBAL_BLOCK | SEARCH_STATIC_BLOCK, |
c92d4de1 | 6062 | SEARCH_ALL); |
e11c72c7 | 6063 | |
c906108c | 6064 | /* Search upwards from currently selected frame (so that we can |
edb3359d DJ |
6065 | complete on local vars). Also catch fields of types defined in |
6066 | this places which match our text string. Only complete on types | |
c378eb4e | 6067 | visible from current context. */ |
edb3359d DJ |
6068 | |
6069 | b = get_selected_block (0); | |
d24e14a0 TT |
6070 | surrounding_static_block = b == nullptr ? nullptr : b->static_block (); |
6071 | surrounding_global_block = b == nullptr ? nullptr : b->global_block (); | |
edb3359d DJ |
6072 | if (surrounding_static_block != NULL) |
6073 | while (b != surrounding_static_block) | |
6074 | { | |
6075 | QUIT; | |
c906108c | 6076 | |
548a89df | 6077 | for (struct symbol *sym : block_iterator_range (b)) |
edb3359d | 6078 | { |
2f68a895 TT |
6079 | if (code == TYPE_CODE_UNDEF) |
6080 | { | |
b5ec771e | 6081 | completion_list_add_symbol (tracker, sym, lookup_name, |
1b026119 | 6082 | sym_text, word); |
b5ec771e | 6083 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 6084 | sym_text, word); |
2f68a895 | 6085 | } |
6c9c307c | 6086 | else if (sym->domain () == STRUCT_DOMAIN |
5f9c5a63 | 6087 | && sym->type ()->code () == code) |
b5ec771e | 6088 | completion_list_add_symbol (tracker, sym, lookup_name, |
1b026119 | 6089 | sym_text, word); |
edb3359d | 6090 | } |
c5aa993b | 6091 | |
edb3359d DJ |
6092 | /* Stop when we encounter an enclosing function. Do not stop for |
6093 | non-inlined functions - the locals of the enclosing function | |
6094 | are in scope for a nested function. */ | |
a4dfe747 | 6095 | if (b->function () != NULL && b->inlined_p ()) |
edb3359d | 6096 | break; |
f135fe72 | 6097 | b = b->superblock (); |
edb3359d | 6098 | } |
c906108c | 6099 | |
edb3359d | 6100 | /* Add fields from the file's types; symbols will be added below. */ |
c906108c | 6101 | |
2f68a895 TT |
6102 | if (code == TYPE_CODE_UNDEF) |
6103 | { | |
6104 | if (surrounding_static_block != NULL) | |
548a89df | 6105 | for (struct symbol *sym : block_iterator_range (surrounding_static_block)) |
b5ec771e | 6106 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 6107 | sym_text, word); |
edb3359d | 6108 | |
2f68a895 | 6109 | if (surrounding_global_block != NULL) |
548a89df | 6110 | for (struct symbol *sym : block_iterator_range (surrounding_global_block)) |
b5ec771e | 6111 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 6112 | sym_text, word); |
2f68a895 | 6113 | } |
c906108c | 6114 | |
2f68a895 TT |
6115 | /* Skip macros if we are completing a struct tag -- arguable but |
6116 | usually what is expected. */ | |
1ac14a04 | 6117 | if (current_language->macro_expansion () == macro_expansion_c |
2f68a895 | 6118 | && code == TYPE_CODE_UNDEF) |
9a044a89 | 6119 | { |
f6c2623e | 6120 | gdb::unique_xmalloc_ptr<struct macro_scope> scope; |
9a044a89 | 6121 | |
14bc53a8 PA |
6122 | /* This adds a macro's name to the current completion list. */ |
6123 | auto add_macro_name = [&] (const char *macro_name, | |
6124 | const macro_definition *, | |
6125 | macro_source_file *, | |
6126 | int) | |
6127 | { | |
1b026119 PA |
6128 | completion_list_add_name (tracker, language_c, macro_name, |
6129 | lookup_name, sym_text, word); | |
14bc53a8 PA |
6130 | }; |
6131 | ||
9a044a89 TT |
6132 | /* Add any macros visible in the default scope. Note that this |
6133 | may yield the occasional wrong result, because an expression | |
6134 | might be evaluated in a scope other than the default. For | |
6135 | example, if the user types "break file:line if <TAB>", the | |
6136 | resulting expression will be evaluated at "file:line" -- but | |
6137 | at there does not seem to be a way to detect this at | |
6138 | completion time. */ | |
6139 | scope = default_macro_scope (); | |
6140 | if (scope) | |
f6c2623e TT |
6141 | macro_for_each_in_scope (scope->file, scope->line, |
6142 | add_macro_name); | |
9a044a89 TT |
6143 | |
6144 | /* User-defined macros are always visible. */ | |
14bc53a8 | 6145 | macro_for_each (macro_user_macros, add_macro_name); |
9a044a89 | 6146 | } |
ef0b411a GB |
6147 | } |
6148 | ||
eb3ff9a5 PA |
6149 | /* Collect all symbols (regardless of class) which begin by matching |
6150 | TEXT. */ | |
41d27058 | 6151 | |
eb3ff9a5 PA |
6152 | void |
6153 | collect_symbol_completion_matches (completion_tracker &tracker, | |
c6756f62 | 6154 | complete_symbol_mode mode, |
b5ec771e | 6155 | symbol_name_match_type name_match_type, |
eb3ff9a5 | 6156 | const char *text, const char *word) |
41d27058 | 6157 | { |
7e56227d AB |
6158 | current_language->collect_symbol_completion_matches (tracker, mode, |
6159 | name_match_type, | |
6160 | text, word, | |
6161 | TYPE_CODE_UNDEF); | |
2f68a895 TT |
6162 | } |
6163 | ||
eb3ff9a5 PA |
6164 | /* Like collect_symbol_completion_matches, but only collect |
6165 | STRUCT_DOMAIN symbols whose type code is CODE. */ | |
2f68a895 | 6166 | |
eb3ff9a5 PA |
6167 | void |
6168 | collect_symbol_completion_matches_type (completion_tracker &tracker, | |
6169 | const char *text, const char *word, | |
6170 | enum type_code code) | |
2f68a895 | 6171 | { |
c6756f62 | 6172 | complete_symbol_mode mode = complete_symbol_mode::EXPRESSION; |
b5ec771e | 6173 | symbol_name_match_type name_match_type = symbol_name_match_type::EXPRESSION; |
c6756f62 | 6174 | |
2f68a895 TT |
6175 | gdb_assert (code == TYPE_CODE_UNION |
6176 | || code == TYPE_CODE_STRUCT | |
2f68a895 | 6177 | || code == TYPE_CODE_ENUM); |
7e56227d AB |
6178 | current_language->collect_symbol_completion_matches (tracker, mode, |
6179 | name_match_type, | |
6180 | text, word, code); | |
41d27058 JB |
6181 | } |
6182 | ||
eb3ff9a5 PA |
6183 | /* Like collect_symbol_completion_matches, but collects a list of |
6184 | symbols defined in all source files named SRCFILE. */ | |
c94fdfd0 | 6185 | |
eb3ff9a5 PA |
6186 | void |
6187 | collect_file_symbol_completion_matches (completion_tracker &tracker, | |
c6756f62 | 6188 | complete_symbol_mode mode, |
b5ec771e | 6189 | symbol_name_match_type name_match_type, |
eb3ff9a5 PA |
6190 | const char *text, const char *word, |
6191 | const char *srcfile) | |
c94fdfd0 | 6192 | { |
c94fdfd0 | 6193 | /* The symbol we are completing on. Points in same buffer as text. */ |
6f937416 | 6194 | const char *sym_text; |
c94fdfd0 EZ |
6195 | |
6196 | /* Now look for the symbol we are supposed to complete on. | |
6197 | FIXME: This should be language-specific. */ | |
c6756f62 PA |
6198 | if (mode == complete_symbol_mode::LINESPEC) |
6199 | sym_text = text; | |
6200 | else | |
01add95b SM |
6201 | { |
6202 | const char *p; | |
6203 | char quote_found; | |
6204 | const char *quote_pos = NULL; | |
c94fdfd0 | 6205 | |
01add95b SM |
6206 | /* First see if this is a quoted string. */ |
6207 | quote_found = '\0'; | |
6208 | for (p = text; *p != '\0'; ++p) | |
6209 | { | |
6210 | if (quote_found != '\0') | |
6211 | { | |
6212 | if (*p == quote_found) | |
6213 | /* Found close quote. */ | |
6214 | quote_found = '\0'; | |
6215 | else if (*p == '\\' && p[1] == quote_found) | |
6216 | /* A backslash followed by the quote character | |
6217 | doesn't end the string. */ | |
6218 | ++p; | |
6219 | } | |
6220 | else if (*p == '\'' || *p == '"') | |
6221 | { | |
6222 | quote_found = *p; | |
6223 | quote_pos = p; | |
6224 | } | |
6225 | } | |
6226 | if (quote_found == '\'') | |
6227 | /* A string within single quotes can be a symbol, so complete on it. */ | |
6228 | sym_text = quote_pos + 1; | |
6229 | else if (quote_found == '"') | |
6230 | /* A double-quoted string is never a symbol, nor does it make sense | |
6231 | to complete it any other way. */ | |
6232 | { | |
6233 | return; | |
6234 | } | |
6235 | else | |
6236 | { | |
6237 | /* Not a quoted string. */ | |
6238 | sym_text = language_search_unquoted_string (text, p); | |
6239 | } | |
6240 | } | |
c94fdfd0 | 6241 | |
1b026119 | 6242 | lookup_name_info lookup_name (sym_text, name_match_type, true); |
b5ec771e | 6243 | |
8f14146e PA |
6244 | /* Go through symtabs for SRCFILE and check the externs and statics |
6245 | for symbols which match. */ | |
6246 | iterate_over_symtabs (srcfile, [&] (symtab *s) | |
c94fdfd0 | 6247 | { |
c6159652 | 6248 | add_symtab_completions (s->compunit (), |
f9d67a22 | 6249 | tracker, mode, lookup_name, |
1b026119 | 6250 | sym_text, word, TYPE_CODE_UNDEF); |
8f14146e PA |
6251 | return false; |
6252 | }); | |
e27852be DE |
6253 | } |
6254 | ||
c94fdfd0 EZ |
6255 | /* A helper function for make_source_files_completion_list. It adds |
6256 | another file name to a list of possible completions, growing the | |
6257 | list as necessary. */ | |
6258 | ||
6259 | static void | |
6f937416 | 6260 | add_filename_to_list (const char *fname, const char *text, const char *word, |
eb3ff9a5 | 6261 | completion_list *list) |
c94fdfd0 | 6262 | { |
60a20c19 | 6263 | list->emplace_back (make_completion_match_str (fname, text, word)); |
c94fdfd0 EZ |
6264 | } |
6265 | ||
6266 | static int | |
6267 | not_interesting_fname (const char *fname) | |
6268 | { | |
6269 | static const char *illegal_aliens[] = { | |
6270 | "_globals_", /* inserted by coff_symtab_read */ | |
6271 | NULL | |
6272 | }; | |
6273 | int i; | |
6274 | ||
6275 | for (i = 0; illegal_aliens[i]; i++) | |
6276 | { | |
0ba1096a | 6277 | if (filename_cmp (fname, illegal_aliens[i]) == 0) |
c94fdfd0 EZ |
6278 | return 1; |
6279 | } | |
6280 | return 0; | |
6281 | } | |
6282 | ||
f4655dee | 6283 | /* An object of this type is passed as the callback argument to |
ccefe4c4 TT |
6284 | map_partial_symbol_filenames. */ |
6285 | struct add_partial_filename_data | |
6286 | { | |
9fdc877b | 6287 | struct filename_seen_cache *filename_seen_cache; |
6f937416 PA |
6288 | const char *text; |
6289 | const char *word; | |
ccefe4c4 | 6290 | int text_len; |
eb3ff9a5 | 6291 | completion_list *list; |
f4655dee TT |
6292 | |
6293 | void operator() (const char *filename, const char *fullname); | |
ccefe4c4 TT |
6294 | }; |
6295 | ||
6296 | /* A callback for map_partial_symbol_filenames. */ | |
eca864fe | 6297 | |
f4655dee TT |
6298 | void |
6299 | add_partial_filename_data::operator() (const char *filename, | |
6300 | const char *fullname) | |
ccefe4c4 | 6301 | { |
ccefe4c4 TT |
6302 | if (not_interesting_fname (filename)) |
6303 | return; | |
f4655dee TT |
6304 | if (!filename_seen_cache->seen (filename) |
6305 | && filename_ncmp (filename, text, text_len) == 0) | |
ccefe4c4 TT |
6306 | { |
6307 | /* This file matches for a completion; add it to the | |
6308 | current list of matches. */ | |
f4655dee | 6309 | add_filename_to_list (filename, text, word, list); |
ccefe4c4 TT |
6310 | } |
6311 | else | |
6312 | { | |
6313 | const char *base_name = lbasename (filename); | |
433759f7 | 6314 | |
ccefe4c4 | 6315 | if (base_name != filename |
f4655dee TT |
6316 | && !filename_seen_cache->seen (base_name) |
6317 | && filename_ncmp (base_name, text, text_len) == 0) | |
6318 | add_filename_to_list (base_name, text, word, list); | |
ccefe4c4 TT |
6319 | } |
6320 | } | |
6321 | ||
eb3ff9a5 | 6322 | /* Return a list of all source files whose names begin with matching |
49c4e619 | 6323 | TEXT. The file names are looked up in the symbol tables of this |
eb3ff9a5 | 6324 | program. */ |
c94fdfd0 | 6325 | |
eb3ff9a5 | 6326 | completion_list |
6f937416 | 6327 | make_source_files_completion_list (const char *text, const char *word) |
c94fdfd0 | 6328 | { |
c94fdfd0 | 6329 | size_t text_len = strlen (text); |
eb3ff9a5 | 6330 | completion_list list; |
31889e00 | 6331 | const char *base_name; |
ccefe4c4 | 6332 | struct add_partial_filename_data datum; |
c94fdfd0 | 6333 | |
c94fdfd0 EZ |
6334 | if (!have_full_symbols () && !have_partial_symbols ()) |
6335 | return list; | |
6336 | ||
bbf2f4df | 6337 | filename_seen_cache filenames_seen; |
9fdc877b | 6338 | |
2030c079 | 6339 | for (objfile *objfile : current_program_space->objfiles ()) |
c94fdfd0 | 6340 | { |
b669c953 | 6341 | for (compunit_symtab *cu : objfile->compunits ()) |
c94fdfd0 | 6342 | { |
102cc235 | 6343 | for (symtab *s : cu->filetabs ()) |
8b31193a TT |
6344 | { |
6345 | if (not_interesting_fname (s->filename)) | |
6346 | continue; | |
6347 | if (!filenames_seen.seen (s->filename) | |
6348 | && filename_ncmp (s->filename, text, text_len) == 0) | |
6349 | { | |
6350 | /* This file matches for a completion; add it to the current | |
6351 | list of matches. */ | |
6352 | add_filename_to_list (s->filename, text, word, &list); | |
6353 | } | |
6354 | else | |
6355 | { | |
6356 | /* NOTE: We allow the user to type a base name when the | |
6357 | debug info records leading directories, but not the other | |
6358 | way around. This is what subroutines of breakpoint | |
6359 | command do when they parse file names. */ | |
6360 | base_name = lbasename (s->filename); | |
6361 | if (base_name != s->filename | |
6362 | && !filenames_seen.seen (base_name) | |
6363 | && filename_ncmp (base_name, text, text_len) == 0) | |
6364 | add_filename_to_list (base_name, text, word, &list); | |
6365 | } | |
6366 | } | |
c94fdfd0 EZ |
6367 | } |
6368 | } | |
6369 | ||
bbf2f4df | 6370 | datum.filename_seen_cache = &filenames_seen; |
ccefe4c4 TT |
6371 | datum.text = text; |
6372 | datum.word = word; | |
6373 | datum.text_len = text_len; | |
6374 | datum.list = &list; | |
f4655dee | 6375 | map_symbol_filenames (datum, false /*need_fullname*/); |
9fdc877b | 6376 | |
c94fdfd0 EZ |
6377 | return list; |
6378 | } | |
c906108c | 6379 | \f |
51cc5b07 | 6380 | /* Track MAIN */ |
32ac0d11 TT |
6381 | |
6382 | /* Return the "main_info" object for the current program space. If | |
6383 | the object has not yet been created, create it and fill in some | |
6384 | default values. */ | |
6385 | ||
a49d37f3 SM |
6386 | static main_info * |
6387 | get_main_info (program_space *pspace) | |
32ac0d11 | 6388 | { |
a49d37f3 | 6389 | main_info *info = main_progspace_key.get (pspace); |
32ac0d11 TT |
6390 | |
6391 | if (info == NULL) | |
6392 | { | |
3d548a53 TT |
6393 | /* It may seem strange to store the main name in the progspace |
6394 | and also in whatever objfile happens to see a main name in | |
6395 | its debug info. The reason for this is mainly historical: | |
6396 | gdb returned "main" as the name even if no function named | |
6397 | "main" was defined the program; and this approach lets us | |
6398 | keep compatibility. */ | |
a49d37f3 | 6399 | info = main_progspace_key.emplace (pspace); |
32ac0d11 TT |
6400 | } |
6401 | ||
6402 | return info; | |
6403 | } | |
6404 | ||
3d548a53 | 6405 | static void |
a49d37f3 | 6406 | set_main_name (program_space *pspace, const char *name, enum language lang) |
51cc5b07 | 6407 | { |
a49d37f3 | 6408 | main_info *info = get_main_info (pspace); |
32ac0d11 | 6409 | |
25eb2931 | 6410 | if (!info->name_of_main.empty ()) |
51cc5b07 | 6411 | { |
25eb2931 | 6412 | info->name_of_main.clear (); |
32ac0d11 | 6413 | info->language_of_main = language_unknown; |
51cc5b07 AC |
6414 | } |
6415 | if (name != NULL) | |
6416 | { | |
25eb2931 | 6417 | info->name_of_main = name; |
32ac0d11 | 6418 | info->language_of_main = lang; |
51cc5b07 AC |
6419 | } |
6420 | } | |
6421 | ||
ea53e89f JB |
6422 | /* Deduce the name of the main procedure, and set NAME_OF_MAIN |
6423 | accordingly. */ | |
6424 | ||
6425 | static void | |
6426 | find_main_name (void) | |
6427 | { | |
cd6c7346 | 6428 | const char *new_main_name; |
a49d37f3 | 6429 | program_space *pspace = current_program_space; |
3d548a53 TT |
6430 | |
6431 | /* First check the objfiles to see whether a debuginfo reader has | |
6432 | picked up the appropriate main name. Historically the main name | |
6433 | was found in a more or less random way; this approach instead | |
6434 | relies on the order of objfile creation -- which still isn't | |
6435 | guaranteed to get the correct answer, but is just probably more | |
6436 | accurate. */ | |
2030c079 | 6437 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 | 6438 | { |
4ea870ef TT |
6439 | objfile->compute_main_name (); |
6440 | ||
aed57c53 TT |
6441 | if (objfile->per_bfd->name_of_main != NULL) |
6442 | { | |
a49d37f3 SM |
6443 | set_main_name (pspace, |
6444 | objfile->per_bfd->name_of_main, | |
aed57c53 TT |
6445 | objfile->per_bfd->language_of_main); |
6446 | return; | |
6447 | } | |
6448 | } | |
ea53e89f JB |
6449 | |
6450 | /* Try to see if the main procedure is in Ada. */ | |
6451 | /* FIXME: brobecker/2005-03-07: Another way of doing this would | |
6452 | be to add a new method in the language vector, and call this | |
6453 | method for each language until one of them returns a non-empty | |
6454 | name. This would allow us to remove this hard-coded call to | |
6455 | an Ada function. It is not clear that this is a better approach | |
6456 | at this point, because all methods need to be written in a way | |
c378eb4e | 6457 | such that false positives never be returned. For instance, it is |
ea53e89f JB |
6458 | important that a method does not return a wrong name for the main |
6459 | procedure if the main procedure is actually written in a different | |
6460 | language. It is easy to guaranty this with Ada, since we use a | |
6461 | special symbol generated only when the main in Ada to find the name | |
c378eb4e | 6462 | of the main procedure. It is difficult however to see how this can |
ea53e89f JB |
6463 | be guarantied for languages such as C, for instance. This suggests |
6464 | that order of call for these methods becomes important, which means | |
6465 | a more complicated approach. */ | |
6466 | new_main_name = ada_main_name (); | |
6467 | if (new_main_name != NULL) | |
9af17804 | 6468 | { |
a49d37f3 | 6469 | set_main_name (pspace, new_main_name, language_ada); |
ea53e89f JB |
6470 | return; |
6471 | } | |
6472 | ||
63778547 IB |
6473 | new_main_name = d_main_name (); |
6474 | if (new_main_name != NULL) | |
6475 | { | |
a49d37f3 | 6476 | set_main_name (pspace, new_main_name, language_d); |
63778547 IB |
6477 | return; |
6478 | } | |
6479 | ||
a766d390 DE |
6480 | new_main_name = go_main_name (); |
6481 | if (new_main_name != NULL) | |
6482 | { | |
a49d37f3 | 6483 | set_main_name (pspace, new_main_name, language_go); |
a766d390 DE |
6484 | return; |
6485 | } | |
6486 | ||
cd6c7346 PM |
6487 | new_main_name = pascal_main_name (); |
6488 | if (new_main_name != NULL) | |
9af17804 | 6489 | { |
a49d37f3 | 6490 | set_main_name (pspace, new_main_name, language_pascal); |
cd6c7346 PM |
6491 | return; |
6492 | } | |
6493 | ||
ea53e89f JB |
6494 | /* The languages above didn't identify the name of the main procedure. |
6495 | Fallback to "main". */ | |
d3214198 TV |
6496 | |
6497 | /* Try to find language for main in psymtabs. */ | |
531bd038 MM |
6498 | bool symbol_found_p = false; |
6499 | gdbarch_iterate_over_objfiles_in_search_order | |
99d9c3b9 | 6500 | (current_inferior ()->arch (), |
a49d37f3 | 6501 | [&symbol_found_p, pspace] (objfile *obj) |
531bd038 MM |
6502 | { |
6503 | language lang | |
6c015214 | 6504 | = obj->lookup_global_symbol_language ("main", SEARCH_VFT, |
531bd038 MM |
6505 | &symbol_found_p); |
6506 | if (symbol_found_p) | |
6507 | { | |
a49d37f3 | 6508 | set_main_name (pspace, "main", lang); |
531bd038 MM |
6509 | return 1; |
6510 | } | |
6511 | ||
6512 | return 0; | |
6513 | }, nullptr); | |
6514 | ||
6515 | if (symbol_found_p) | |
6516 | return; | |
d3214198 | 6517 | |
a49d37f3 | 6518 | set_main_name (pspace, "main", language_unknown); |
ea53e89f JB |
6519 | } |
6520 | ||
cd215b2e TT |
6521 | /* See symtab.h. */ |
6522 | ||
6523 | const char * | |
6524 | main_name () | |
51cc5b07 | 6525 | { |
a49d37f3 | 6526 | main_info *info = get_main_info (current_program_space); |
32ac0d11 | 6527 | |
25eb2931 | 6528 | if (info->name_of_main.empty ()) |
ea53e89f JB |
6529 | find_main_name (); |
6530 | ||
25eb2931 | 6531 | return info->name_of_main.c_str (); |
51cc5b07 AC |
6532 | } |
6533 | ||
9e6c82ad TT |
6534 | /* Return the language of the main function. If it is not known, |
6535 | return language_unknown. */ | |
6536 | ||
6537 | enum language | |
6538 | main_language (void) | |
6539 | { | |
a49d37f3 | 6540 | main_info *info = get_main_info (current_program_space); |
32ac0d11 | 6541 | |
25eb2931 | 6542 | if (info->name_of_main.empty ()) |
32ac0d11 TT |
6543 | find_main_name (); |
6544 | ||
6545 | return info->language_of_main; | |
9e6c82ad TT |
6546 | } |
6547 | ||
a6c727b2 DJ |
6548 | /* Return 1 if the supplied producer string matches the ARM RealView |
6549 | compiler (armcc). */ | |
6550 | ||
ececd218 | 6551 | bool |
a6c727b2 DJ |
6552 | producer_is_realview (const char *producer) |
6553 | { | |
6554 | static const char *const arm_idents[] = { | |
6555 | "ARM C Compiler, ADS", | |
6556 | "Thumb C Compiler, ADS", | |
6557 | "ARM C++ Compiler, ADS", | |
6558 | "Thumb C++ Compiler, ADS", | |
6559 | "ARM/Thumb C/C++ Compiler, RVCT", | |
6560 | "ARM C/C++ Compiler, RVCT" | |
6561 | }; | |
a6c727b2 DJ |
6562 | |
6563 | if (producer == NULL) | |
ececd218 | 6564 | return false; |
a6c727b2 | 6565 | |
696d6f4d TT |
6566 | for (const char *ident : arm_idents) |
6567 | if (startswith (producer, ident)) | |
ececd218 | 6568 | return true; |
a6c727b2 | 6569 | |
ececd218 | 6570 | return false; |
a6c727b2 | 6571 | } |
ed0616c6 | 6572 | |
f1e6e072 TT |
6573 | \f |
6574 | ||
6575 | /* The next index to hand out in response to a registration request. */ | |
6576 | ||
6577 | static int next_aclass_value = LOC_FINAL_VALUE; | |
6578 | ||
6579 | /* The maximum number of "aclass" registrations we support. This is | |
6580 | constant for convenience. */ | |
658d5e0c | 6581 | #define MAX_SYMBOL_IMPLS (LOC_FINAL_VALUE + 11) |
f1e6e072 TT |
6582 | |
6583 | /* The objects representing the various "aclass" values. The elements | |
6584 | from 0 up to LOC_FINAL_VALUE-1 represent themselves, and subsequent | |
6585 | elements are those registered at gdb initialization time. */ | |
6586 | ||
6587 | static struct symbol_impl symbol_impl[MAX_SYMBOL_IMPLS]; | |
6588 | ||
6589 | /* The globally visible pointer. This is separate from 'symbol_impl' | |
6590 | so that it can be const. */ | |
6591 | ||
6bc3c5b4 | 6592 | gdb::array_view<const struct symbol_impl> symbol_impls (symbol_impl); |
f1e6e072 TT |
6593 | |
6594 | /* Make sure we saved enough room in struct symbol. */ | |
6595 | ||
69f6730d | 6596 | static_assert (MAX_SYMBOL_IMPLS <= (1 << SYMBOL_ACLASS_BITS)); |
f1e6e072 TT |
6597 | |
6598 | /* Register a computed symbol type. ACLASS must be LOC_COMPUTED. OPS | |
6599 | is the ops vector associated with this index. This returns the new | |
6600 | index, which should be used as the aclass_index field for symbols | |
6601 | of this type. */ | |
6602 | ||
6603 | int | |
6604 | register_symbol_computed_impl (enum address_class aclass, | |
6605 | const struct symbol_computed_ops *ops) | |
6606 | { | |
6607 | int result = next_aclass_value++; | |
6608 | ||
6609 | gdb_assert (aclass == LOC_COMPUTED); | |
6610 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6611 | symbol_impl[result].aclass = aclass; | |
6612 | symbol_impl[result].ops_computed = ops; | |
6613 | ||
24d6c2a0 TT |
6614 | /* Sanity check OPS. */ |
6615 | gdb_assert (ops != NULL); | |
6616 | gdb_assert (ops->tracepoint_var_ref != NULL); | |
6617 | gdb_assert (ops->describe_location != NULL); | |
0b31a4bc | 6618 | gdb_assert (ops->get_symbol_read_needs != NULL); |
24d6c2a0 TT |
6619 | gdb_assert (ops->read_variable != NULL); |
6620 | ||
f1e6e072 TT |
6621 | return result; |
6622 | } | |
6623 | ||
6624 | /* Register a function with frame base type. ACLASS must be LOC_BLOCK. | |
6625 | OPS is the ops vector associated with this index. This returns the | |
6626 | new index, which should be used as the aclass_index field for symbols | |
6627 | of this type. */ | |
6628 | ||
6629 | int | |
6630 | register_symbol_block_impl (enum address_class aclass, | |
6631 | const struct symbol_block_ops *ops) | |
6632 | { | |
6633 | int result = next_aclass_value++; | |
6634 | ||
6635 | gdb_assert (aclass == LOC_BLOCK); | |
6636 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6637 | symbol_impl[result].aclass = aclass; | |
6638 | symbol_impl[result].ops_block = ops; | |
6639 | ||
6640 | /* Sanity check OPS. */ | |
6641 | gdb_assert (ops != NULL); | |
36ed3d84 TT |
6642 | gdb_assert (ops->find_frame_base_location != nullptr |
6643 | || ops->get_block_value != nullptr); | |
f1e6e072 TT |
6644 | |
6645 | return result; | |
6646 | } | |
6647 | ||
6648 | /* Register a register symbol type. ACLASS must be LOC_REGISTER or | |
6649 | LOC_REGPARM_ADDR. OPS is the register ops vector associated with | |
6650 | this index. This returns the new index, which should be used as | |
6651 | the aclass_index field for symbols of this type. */ | |
6652 | ||
6653 | int | |
6654 | register_symbol_register_impl (enum address_class aclass, | |
6655 | const struct symbol_register_ops *ops) | |
6656 | { | |
6657 | int result = next_aclass_value++; | |
6658 | ||
6659 | gdb_assert (aclass == LOC_REGISTER || aclass == LOC_REGPARM_ADDR); | |
6660 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6661 | symbol_impl[result].aclass = aclass; | |
6662 | symbol_impl[result].ops_register = ops; | |
6663 | ||
6664 | return result; | |
6665 | } | |
6666 | ||
6667 | /* Initialize elements of 'symbol_impl' for the constants in enum | |
6668 | address_class. */ | |
6669 | ||
6670 | static void | |
6671 | initialize_ordinary_address_classes (void) | |
6672 | { | |
6673 | int i; | |
6674 | ||
6675 | for (i = 0; i < LOC_FINAL_VALUE; ++i) | |
aead7601 | 6676 | symbol_impl[i].aclass = (enum address_class) i; |
f1e6e072 TT |
6677 | } |
6678 | ||
6679 | \f | |
6680 | ||
08be3fe3 DE |
6681 | /* See symtab.h. */ |
6682 | ||
6683 | struct objfile * | |
e19b2d94 | 6684 | symbol::objfile () const |
08be3fe3 | 6685 | { |
e19b2d94 TT |
6686 | gdb_assert (is_objfile_owned ()); |
6687 | return owner.symtab->compunit ()->objfile (); | |
08be3fe3 DE |
6688 | } |
6689 | ||
6690 | /* See symtab.h. */ | |
6691 | ||
6692 | struct gdbarch * | |
bcd6845e | 6693 | symbol::arch () const |
08be3fe3 | 6694 | { |
bcd6845e TT |
6695 | if (!is_objfile_owned ()) |
6696 | return owner.arch; | |
6697 | return owner.symtab->compunit ()->objfile ()->arch (); | |
08be3fe3 DE |
6698 | } |
6699 | ||
6700 | /* See symtab.h. */ | |
6701 | ||
6702 | struct symtab * | |
4206d69e | 6703 | symbol::symtab () const |
08be3fe3 | 6704 | { |
4206d69e TT |
6705 | gdb_assert (is_objfile_owned ()); |
6706 | return owner.symtab; | |
08be3fe3 DE |
6707 | } |
6708 | ||
6709 | /* See symtab.h. */ | |
6710 | ||
6711 | void | |
4206d69e | 6712 | symbol::set_symtab (struct symtab *symtab) |
08be3fe3 | 6713 | { |
4206d69e TT |
6714 | gdb_assert (is_objfile_owned ()); |
6715 | owner.symtab = symtab; | |
08be3fe3 DE |
6716 | } |
6717 | ||
4b610737 TT |
6718 | /* See symtab.h. */ |
6719 | ||
6720 | CORE_ADDR | |
f9b96f67 | 6721 | symbol::get_maybe_copied_address () const |
4b610737 | 6722 | { |
f9b96f67 SM |
6723 | gdb_assert (this->maybe_copied); |
6724 | gdb_assert (this->aclass () == LOC_STATIC); | |
4b610737 | 6725 | |
f9b96f67 | 6726 | const char *linkage_name = this->linkage_name (); |
47ef0ac7 TT |
6727 | bound_minimal_symbol minsym = lookup_minimal_symbol_linkage (linkage_name, |
6728 | false); | |
6729 | if (minsym.minsym != nullptr) | |
6730 | return minsym.value_address (); | |
f9b96f67 | 6731 | return this->m_value.address; |
4b610737 TT |
6732 | } |
6733 | ||
6734 | /* See symtab.h. */ | |
6735 | ||
6736 | CORE_ADDR | |
23e6f781 | 6737 | minimal_symbol::get_maybe_copied_address (objfile *objf) const |
4b610737 | 6738 | { |
23e6f781 | 6739 | gdb_assert (this->maybe_copied (objf)); |
4b610737 TT |
6740 | gdb_assert ((objf->flags & OBJF_MAINLINE) == 0); |
6741 | ||
23e6f781 | 6742 | const char *linkage_name = this->linkage_name (); |
47ef0ac7 TT |
6743 | bound_minimal_symbol found = lookup_minimal_symbol_linkage (linkage_name, |
6744 | true); | |
6745 | if (found.minsym != nullptr) | |
6746 | return found.value_address (); | |
23e6f781 SM |
6747 | return (this->m_value.address |
6748 | + objf->section_offsets[this->section_index ()]); | |
4b610737 TT |
6749 | } |
6750 | ||
e623cf5d TT |
6751 | \f |
6752 | ||
165f8965 AB |
6753 | /* Hold the sub-commands of 'info module'. */ |
6754 | ||
6755 | static struct cmd_list_element *info_module_cmdlist = NULL; | |
6756 | ||
165f8965 AB |
6757 | /* See symtab.h. */ |
6758 | ||
6759 | std::vector<module_symbol_search> | |
6760 | search_module_symbols (const char *module_regexp, const char *regexp, | |
c92d4de1 | 6761 | const char *type_regexp, domain_search_flags kind) |
165f8965 AB |
6762 | { |
6763 | std::vector<module_symbol_search> results; | |
6764 | ||
6765 | /* Search for all modules matching MODULE_REGEXP. */ | |
c92d4de1 | 6766 | global_symbol_searcher spec1 (SEARCH_MODULE_DOMAIN, module_regexp); |
470c0b1c AB |
6767 | spec1.set_exclude_minsyms (true); |
6768 | std::vector<symbol_search> modules = spec1.search (); | |
165f8965 AB |
6769 | |
6770 | /* Now search for all symbols of the required KIND matching the required | |
6771 | regular expressions. We figure out which ones are in which modules | |
6772 | below. */ | |
470c0b1c AB |
6773 | global_symbol_searcher spec2 (kind, regexp); |
6774 | spec2.set_symbol_type_regexp (type_regexp); | |
6775 | spec2.set_exclude_minsyms (true); | |
6776 | std::vector<symbol_search> symbols = spec2.search (); | |
165f8965 AB |
6777 | |
6778 | /* Now iterate over all MODULES, checking to see which items from | |
6779 | SYMBOLS are in each module. */ | |
6780 | for (const symbol_search &p : modules) | |
6781 | { | |
6782 | QUIT; | |
6783 | ||
6784 | /* This is a module. */ | |
6785 | gdb_assert (p.symbol != nullptr); | |
6786 | ||
987012b8 | 6787 | std::string prefix = p.symbol->print_name (); |
165f8965 AB |
6788 | prefix += "::"; |
6789 | ||
6790 | for (const symbol_search &q : symbols) | |
6791 | { | |
6792 | if (q.symbol == nullptr) | |
6793 | continue; | |
6794 | ||
987012b8 | 6795 | if (strncmp (q.symbol->print_name (), prefix.c_str (), |
165f8965 AB |
6796 | prefix.size ()) != 0) |
6797 | continue; | |
6798 | ||
6799 | results.push_back ({p, q}); | |
6800 | } | |
6801 | } | |
6802 | ||
6803 | return results; | |
6804 | } | |
6805 | ||
6806 | /* Implement the core of both 'info module functions' and 'info module | |
6807 | variables'. */ | |
6808 | ||
6809 | static void | |
6810 | info_module_subcommand (bool quiet, const char *module_regexp, | |
6811 | const char *regexp, const char *type_regexp, | |
c92d4de1 | 6812 | domain_search_flags kind) |
165f8965 | 6813 | { |
c92d4de1 TT |
6814 | gdb_assert (kind == SEARCH_FUNCTION_DOMAIN || kind == SEARCH_VAR_DOMAIN); |
6815 | ||
165f8965 AB |
6816 | /* Print a header line. Don't build the header line bit by bit as this |
6817 | prevents internationalisation. */ | |
6818 | if (!quiet) | |
6819 | { | |
6820 | if (module_regexp == nullptr) | |
6821 | { | |
6822 | if (type_regexp == nullptr) | |
6823 | { | |
6824 | if (regexp == nullptr) | |
c92d4de1 | 6825 | gdb_printf ((kind == SEARCH_VAR_DOMAIN |
6cb06a8c TT |
6826 | ? _("All variables in all modules:") |
6827 | : _("All functions in all modules:"))); | |
165f8965 | 6828 | else |
6cb06a8c | 6829 | gdb_printf |
c92d4de1 | 6830 | ((kind == SEARCH_VAR_DOMAIN |
165f8965 AB |
6831 | ? _("All variables matching regular expression" |
6832 | " \"%s\" in all modules:") | |
6833 | : _("All functions matching regular expression" | |
6834 | " \"%s\" in all modules:")), | |
6835 | regexp); | |
6836 | } | |
6837 | else | |
6838 | { | |
6839 | if (regexp == nullptr) | |
6cb06a8c | 6840 | gdb_printf |
c92d4de1 | 6841 | ((kind == SEARCH_VAR_DOMAIN |
165f8965 AB |
6842 | ? _("All variables with type matching regular " |
6843 | "expression \"%s\" in all modules:") | |
6844 | : _("All functions with type matching regular " | |
6845 | "expression \"%s\" in all modules:")), | |
6846 | type_regexp); | |
6847 | else | |
6cb06a8c | 6848 | gdb_printf |
c92d4de1 | 6849 | ((kind == SEARCH_VAR_DOMAIN |
165f8965 AB |
6850 | ? _("All variables matching regular expression " |
6851 | "\"%s\",\n\twith type matching regular " | |
6852 | "expression \"%s\" in all modules:") | |
6853 | : _("All functions matching regular expression " | |
6854 | "\"%s\",\n\twith type matching regular " | |
6855 | "expression \"%s\" in all modules:")), | |
6856 | regexp, type_regexp); | |
6857 | } | |
6858 | } | |
6859 | else | |
6860 | { | |
6861 | if (type_regexp == nullptr) | |
6862 | { | |
6863 | if (regexp == nullptr) | |
6cb06a8c | 6864 | gdb_printf |
c92d4de1 | 6865 | ((kind == SEARCH_VAR_DOMAIN |
165f8965 AB |
6866 | ? _("All variables in all modules matching regular " |
6867 | "expression \"%s\":") | |
6868 | : _("All functions in all modules matching regular " | |
6869 | "expression \"%s\":")), | |
6870 | module_regexp); | |
6871 | else | |
6cb06a8c | 6872 | gdb_printf |
c92d4de1 | 6873 | ((kind == SEARCH_VAR_DOMAIN |
165f8965 AB |
6874 | ? _("All variables matching regular expression " |
6875 | "\"%s\",\n\tin all modules matching regular " | |
6876 | "expression \"%s\":") | |
6877 | : _("All functions matching regular expression " | |
6878 | "\"%s\",\n\tin all modules matching regular " | |
6879 | "expression \"%s\":")), | |
6880 | regexp, module_regexp); | |
6881 | } | |
6882 | else | |
6883 | { | |
6884 | if (regexp == nullptr) | |
6cb06a8c | 6885 | gdb_printf |
c92d4de1 | 6886 | ((kind == SEARCH_VAR_DOMAIN |
165f8965 AB |
6887 | ? _("All variables with type matching regular " |
6888 | "expression \"%s\"\n\tin all modules matching " | |
6889 | "regular expression \"%s\":") | |
6890 | : _("All functions with type matching regular " | |
6891 | "expression \"%s\"\n\tin all modules matching " | |
6892 | "regular expression \"%s\":")), | |
6893 | type_regexp, module_regexp); | |
6894 | else | |
6cb06a8c | 6895 | gdb_printf |
c92d4de1 | 6896 | ((kind == SEARCH_VAR_DOMAIN |
165f8965 AB |
6897 | ? _("All variables matching regular expression " |
6898 | "\"%s\",\n\twith type matching regular expression " | |
6899 | "\"%s\",\n\tin all modules matching regular " | |
6900 | "expression \"%s\":") | |
6901 | : _("All functions matching regular expression " | |
6902 | "\"%s\",\n\twith type matching regular expression " | |
6903 | "\"%s\",\n\tin all modules matching regular " | |
6904 | "expression \"%s\":")), | |
6905 | regexp, type_regexp, module_regexp); | |
6906 | } | |
6907 | } | |
6cb06a8c | 6908 | gdb_printf ("\n"); |
165f8965 AB |
6909 | } |
6910 | ||
6911 | /* Find all symbols of type KIND matching the given regular expressions | |
6912 | along with the symbols for the modules in which those symbols | |
6913 | reside. */ | |
6914 | std::vector<module_symbol_search> module_symbols | |
6915 | = search_module_symbols (module_regexp, regexp, type_regexp, kind); | |
6916 | ||
6917 | std::sort (module_symbols.begin (), module_symbols.end (), | |
6918 | [] (const module_symbol_search &a, const module_symbol_search &b) | |
6919 | { | |
6920 | if (a.first < b.first) | |
6921 | return true; | |
6922 | else if (a.first == b.first) | |
6923 | return a.second < b.second; | |
6924 | else | |
6925 | return false; | |
6926 | }); | |
6927 | ||
6928 | const char *last_filename = ""; | |
6929 | const symbol *last_module_symbol = nullptr; | |
6930 | for (const module_symbol_search &ms : module_symbols) | |
6931 | { | |
6932 | const symbol_search &p = ms.first; | |
6933 | const symbol_search &q = ms.second; | |
6934 | ||
6935 | gdb_assert (q.symbol != nullptr); | |
6936 | ||
6937 | if (last_module_symbol != p.symbol) | |
6938 | { | |
6cb06a8c TT |
6939 | gdb_printf ("\n"); |
6940 | gdb_printf (_("Module \"%s\":\n"), p.symbol->print_name ()); | |
165f8965 AB |
6941 | last_module_symbol = p.symbol; |
6942 | last_filename = ""; | |
6943 | } | |
6944 | ||
d4bf9040 | 6945 | print_symbol_info (q.symbol, q.block, last_filename); |
165f8965 | 6946 | last_filename |
4206d69e | 6947 | = symtab_to_filename_for_display (q.symbol->symtab ()); |
165f8965 AB |
6948 | } |
6949 | } | |
6950 | ||
6951 | /* Hold the option values for the 'info module .....' sub-commands. */ | |
6952 | ||
6953 | struct info_modules_var_func_options | |
6954 | { | |
6955 | bool quiet = false; | |
e0700ba4 SM |
6956 | std::string type_regexp; |
6957 | std::string module_regexp; | |
165f8965 AB |
6958 | }; |
6959 | ||
6960 | /* The options used by 'info module variables' and 'info module functions' | |
6961 | commands. */ | |
6962 | ||
6963 | static const gdb::option::option_def info_modules_var_func_options_defs [] = { | |
6964 | gdb::option::boolean_option_def<info_modules_var_func_options> { | |
6965 | "q", | |
6966 | [] (info_modules_var_func_options *opt) { return &opt->quiet; }, | |
6967 | nullptr, /* show_cmd_cb */ | |
6968 | nullptr /* set_doc */ | |
6969 | }, | |
6970 | ||
6971 | gdb::option::string_option_def<info_modules_var_func_options> { | |
6972 | "t", | |
6973 | [] (info_modules_var_func_options *opt) { return &opt->type_regexp; }, | |
6974 | nullptr, /* show_cmd_cb */ | |
6975 | nullptr /* set_doc */ | |
6976 | }, | |
6977 | ||
6978 | gdb::option::string_option_def<info_modules_var_func_options> { | |
6979 | "m", | |
6980 | [] (info_modules_var_func_options *opt) { return &opt->module_regexp; }, | |
6981 | nullptr, /* show_cmd_cb */ | |
6982 | nullptr /* set_doc */ | |
6983 | } | |
6984 | }; | |
6985 | ||
6986 | /* Return the option group used by the 'info module ...' sub-commands. */ | |
6987 | ||
6988 | static inline gdb::option::option_def_group | |
6989 | make_info_modules_var_func_options_def_group | |
6990 | (info_modules_var_func_options *opts) | |
6991 | { | |
6992 | return {{info_modules_var_func_options_defs}, opts}; | |
6993 | } | |
6994 | ||
6995 | /* Implements the 'info module functions' command. */ | |
6996 | ||
6997 | static void | |
6998 | info_module_functions_command (const char *args, int from_tty) | |
6999 | { | |
7000 | info_modules_var_func_options opts; | |
7001 | auto grp = make_info_modules_var_func_options_def_group (&opts); | |
7002 | gdb::option::process_options | |
7003 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
7004 | if (args != nullptr && *args == '\0') | |
7005 | args = nullptr; | |
7006 | ||
e0700ba4 SM |
7007 | info_module_subcommand |
7008 | (opts.quiet, | |
7009 | opts.module_regexp.empty () ? nullptr : opts.module_regexp.c_str (), args, | |
7010 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
c92d4de1 | 7011 | SEARCH_FUNCTION_DOMAIN); |
165f8965 AB |
7012 | } |
7013 | ||
7014 | /* Implements the 'info module variables' command. */ | |
7015 | ||
7016 | static void | |
7017 | info_module_variables_command (const char *args, int from_tty) | |
7018 | { | |
7019 | info_modules_var_func_options opts; | |
7020 | auto grp = make_info_modules_var_func_options_def_group (&opts); | |
7021 | gdb::option::process_options | |
7022 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
7023 | if (args != nullptr && *args == '\0') | |
7024 | args = nullptr; | |
7025 | ||
e0700ba4 SM |
7026 | info_module_subcommand |
7027 | (opts.quiet, | |
7028 | opts.module_regexp.empty () ? nullptr : opts.module_regexp.c_str (), args, | |
7029 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
c92d4de1 | 7030 | SEARCH_VAR_DOMAIN); |
165f8965 AB |
7031 | } |
7032 | ||
7033 | /* Command completer for 'info module ...' sub-commands. */ | |
7034 | ||
7035 | static void | |
7036 | info_module_var_func_command_completer (struct cmd_list_element *ignore, | |
7037 | completion_tracker &tracker, | |
7038 | const char *text, | |
7039 | const char * /* word */) | |
7040 | { | |
7041 | ||
7042 | const auto group = make_info_modules_var_func_options_def_group (nullptr); | |
7043 | if (gdb::option::complete_options | |
7044 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
7045 | return; | |
7046 | ||
7047 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
7048 | symbol_completer (ignore, tracker, text, word); | |
7049 | } | |
7050 | ||
7051 | \f | |
7052 | ||
6c265988 | 7053 | void _initialize_symtab (); |
c906108c | 7054 | void |
6c265988 | 7055 | _initialize_symtab () |
c906108c | 7056 | { |
60cfcb20 AB |
7057 | cmd_list_element *c; |
7058 | ||
f1e6e072 TT |
7059 | initialize_ordinary_address_classes (); |
7060 | ||
60cfcb20 AB |
7061 | c = add_info ("variables", info_variables_command, |
7062 | info_print_args_help (_("\ | |
12615cba | 7063 | All global and static variable names or those matching REGEXPs.\n\ |
4acfdd20 | 7064 | Usage: info variables [-q] [-n] [-t TYPEREGEXP] [NAMEREGEXP]\n\ |
12615cba | 7065 | Prints the global and static variables.\n"), |
4acfdd20 AB |
7066 | _("global and static variables"), |
7067 | true)); | |
095252be | 7068 | set_cmd_completer_handle_brkchars (c, info_vars_funcs_command_completer); |
c906108c | 7069 | |
60cfcb20 AB |
7070 | c = add_info ("functions", info_functions_command, |
7071 | info_print_args_help (_("\ | |
12615cba | 7072 | All function names or those matching REGEXPs.\n\ |
4acfdd20 | 7073 | Usage: info functions [-q] [-n] [-t TYPEREGEXP] [NAMEREGEXP]\n\ |
12615cba | 7074 | Prints the functions.\n"), |
4acfdd20 AB |
7075 | _("functions"), |
7076 | true)); | |
095252be | 7077 | set_cmd_completer_handle_brkchars (c, info_vars_funcs_command_completer); |
c906108c | 7078 | |
a8eab7c6 AB |
7079 | c = add_info ("types", info_types_command, _("\ |
7080 | All type names, or those matching REGEXP.\n\ | |
7081 | Usage: info types [-q] [REGEXP]\n\ | |
7082 | Print information about all types matching REGEXP, or all types if no\n\ | |
7083 | REGEXP is given. The optional flag -q disables printing of headers.")); | |
7084 | set_cmd_completer_handle_brkchars (c, info_types_command_completer); | |
c906108c | 7085 | |
0e350a05 AB |
7086 | const auto info_sources_opts |
7087 | = make_info_sources_options_def_group (nullptr); | |
28cd9371 PW |
7088 | |
7089 | static std::string info_sources_help | |
7090 | = gdb::option::build_help (_("\ | |
7091 | All source files in the program or those matching REGEXP.\n\ | |
7092 | Usage: info sources [OPTION]... [REGEXP]\n\ | |
7093 | By default, REGEXP is used to match anywhere in the filename.\n\ | |
7094 | \n\ | |
7095 | Options:\n\ | |
7096 | %OPTIONS%"), | |
7097 | info_sources_opts); | |
7098 | ||
7099 | c = add_info ("sources", info_sources_command, info_sources_help.c_str ()); | |
7100 | set_cmd_completer_handle_brkchars (c, info_sources_command_completer); | |
c906108c | 7101 | |
59c35742 AB |
7102 | c = add_info ("modules", info_modules_command, |
7103 | _("All module names, or those matching REGEXP.")); | |
7104 | set_cmd_completer_handle_brkchars (c, info_types_command_completer); | |
7105 | ||
03d83cd5 RB |
7106 | add_info ("main", info_main_command, |
7107 | _("Get main symbol to identify entry point into program.")); | |
7108 | ||
0743fc83 | 7109 | add_basic_prefix_cmd ("module", class_info, _("\ |
165f8965 | 7110 | Print information about modules."), |
2f822da5 | 7111 | &info_module_cmdlist, 0, &infolist); |
165f8965 AB |
7112 | |
7113 | c = add_cmd ("functions", class_info, info_module_functions_command, _("\ | |
7114 | Display functions arranged by modules.\n\ | |
7115 | Usage: info module functions [-q] [-m MODREGEXP] [-t TYPEREGEXP] [REGEXP]\n\ | |
7116 | Print a summary of all functions within each Fortran module, grouped by\n\ | |
7117 | module and file. For each function the line on which the function is\n\ | |
7118 | defined is given along with the type signature and name of the function.\n\ | |
7119 | \n\ | |
7120 | If REGEXP is provided then only functions whose name matches REGEXP are\n\ | |
7121 | listed. If MODREGEXP is provided then only functions in modules matching\n\ | |
7122 | MODREGEXP are listed. If TYPEREGEXP is given then only functions whose\n\ | |
7123 | type signature matches TYPEREGEXP are listed.\n\ | |
7124 | \n\ | |
7125 | The -q flag suppresses printing some header information."), | |
7126 | &info_module_cmdlist); | |
7127 | set_cmd_completer_handle_brkchars | |
7128 | (c, info_module_var_func_command_completer); | |
7129 | ||
7130 | c = add_cmd ("variables", class_info, info_module_variables_command, _("\ | |
7131 | Display variables arranged by modules.\n\ | |
7132 | Usage: info module variables [-q] [-m MODREGEXP] [-t TYPEREGEXP] [REGEXP]\n\ | |
7133 | Print a summary of all variables within each Fortran module, grouped by\n\ | |
7134 | module and file. For each variable the line on which the variable is\n\ | |
7135 | defined is given along with the type and name of the variable.\n\ | |
7136 | \n\ | |
7137 | If REGEXP is provided then only variables whose name matches REGEXP are\n\ | |
7138 | listed. If MODREGEXP is provided then only variables in modules matching\n\ | |
7139 | MODREGEXP are listed. If TYPEREGEXP is given then only variables whose\n\ | |
7140 | type matches TYPEREGEXP are listed.\n\ | |
7141 | \n\ | |
7142 | The -q flag suppresses printing some header information."), | |
7143 | &info_module_cmdlist); | |
7144 | set_cmd_completer_handle_brkchars | |
7145 | (c, info_module_var_func_command_completer); | |
7146 | ||
c906108c | 7147 | add_com ("rbreak", class_breakpoint, rbreak_command, |
1bedd215 | 7148 | _("Set a breakpoint for all functions matching REGEXP.")); |
c906108c | 7149 | |
717d2f5a | 7150 | add_setshow_enum_cmd ("multiple-symbols", no_class, |
dda83cd7 SM |
7151 | multiple_symbols_modes, &multiple_symbols_mode, |
7152 | _("\ | |
590042fc | 7153 | Set how the debugger handles ambiguities in expressions."), _("\ |
717d2f5a JB |
7154 | Show how the debugger handles ambiguities in expressions."), _("\ |
7155 | Valid values are \"ask\", \"all\", \"cancel\", and the default is \"all\"."), | |
dda83cd7 | 7156 | NULL, NULL, &setlist, &showlist); |
717d2f5a | 7157 | |
c011a4f4 DE |
7158 | add_setshow_boolean_cmd ("basenames-may-differ", class_obscure, |
7159 | &basenames_may_differ, _("\ | |
7160 | Set whether a source file may have multiple base names."), _("\ | |
7161 | Show whether a source file may have multiple base names."), _("\ | |
7162 | (A \"base name\" is the name of a file with the directory part removed.\n\ | |
7163 | Example: The base name of \"/home/user/hello.c\" is \"hello.c\".)\n\ | |
7164 | If set, GDB will canonicalize file names (e.g., expand symlinks)\n\ | |
7165 | before comparing them. Canonicalization is an expensive operation,\n\ | |
7166 | but it allows the same file be known by more than one base name.\n\ | |
7167 | If not set (the default), all source files are assumed to have just\n\ | |
7168 | one base name, and gdb will do file name comparisons more efficiently."), | |
7169 | NULL, NULL, | |
7170 | &setlist, &showlist); | |
7171 | ||
db0fec5c DE |
7172 | add_setshow_zuinteger_cmd ("symtab-create", no_class, &symtab_create_debug, |
7173 | _("Set debugging of symbol table creation."), | |
7174 | _("Show debugging of symbol table creation."), _("\ | |
7175 | When enabled (non-zero), debugging messages are printed when building\n\ | |
7176 | symbol tables. A value of 1 (one) normally provides enough information.\n\ | |
7177 | A value greater than 1 provides more verbose information."), | |
7178 | NULL, | |
7179 | NULL, | |
7180 | &setdebuglist, &showdebuglist); | |
45cfd468 | 7181 | |
cc485e62 DE |
7182 | add_setshow_zuinteger_cmd ("symbol-lookup", no_class, &symbol_lookup_debug, |
7183 | _("\ | |
7184 | Set debugging of symbol lookup."), _("\ | |
7185 | Show debugging of symbol lookup."), _("\ | |
7186 | When enabled (non-zero), symbol lookups are logged."), | |
7187 | NULL, NULL, | |
7188 | &setdebuglist, &showdebuglist); | |
7189 | ||
f57d2163 DE |
7190 | add_setshow_zuinteger_cmd ("symbol-cache-size", no_class, |
7191 | &new_symbol_cache_size, | |
7192 | _("Set the size of the symbol cache."), | |
7193 | _("Show the size of the symbol cache."), _("\ | |
7194 | The size of the symbol cache.\n\ | |
7195 | If zero then the symbol cache is disabled."), | |
7196 | set_symbol_cache_size_handler, NULL, | |
7197 | &maintenance_set_cmdlist, | |
7198 | &maintenance_show_cmdlist); | |
7199 | ||
6109f7a3 LS |
7200 | add_setshow_boolean_cmd ("ignore-prologue-end-flag", no_class, |
7201 | &ignore_prologue_end_flag, | |
7202 | _("Set if the PROLOGUE-END flag is ignored."), | |
7203 | _("Show if the PROLOGUE-END flag is ignored."), | |
7204 | _("\ | |
7205 | The PROLOGUE-END flag from the line-table entries is used to place \ | |
a383ee40 | 7206 | breakpoints past the prologue of functions. Disabling its use forces \ |
6109f7a3 LS |
7207 | the use of prologue scanners."), |
7208 | nullptr, nullptr, | |
7209 | &maintenance_set_cmdlist, | |
7210 | &maintenance_show_cmdlist); | |
7211 | ||
7212 | ||
f57d2163 DE |
7213 | add_cmd ("symbol-cache", class_maintenance, maintenance_print_symbol_cache, |
7214 | _("Dump the symbol cache for each program space."), | |
7215 | &maintenanceprintlist); | |
7216 | ||
7217 | add_cmd ("symbol-cache-statistics", class_maintenance, | |
7218 | maintenance_print_symbol_cache_statistics, | |
7219 | _("Print symbol cache statistics for each program space."), | |
7220 | &maintenanceprintlist); | |
7221 | ||
5e84b7ee SM |
7222 | cmd_list_element *maintenance_flush_symbol_cache_cmd |
7223 | = add_cmd ("symbol-cache", class_maintenance, | |
7224 | maintenance_flush_symbol_cache, | |
7225 | _("Flush the symbol cache for each program space."), | |
7226 | &maintenanceflushlist); | |
7227 | c = add_alias_cmd ("flush-symbol-cache", maintenance_flush_symbol_cache_cmd, | |
50a5f187 AB |
7228 | class_maintenance, 0, &maintenancelist); |
7229 | deprecate_cmd (c, "maintenancelist flush symbol-cache"); | |
f57d2163 | 7230 | |
c90e7d63 | 7231 | gdb::observers::new_objfile.attach (symtab_new_objfile_observer, "symtab"); |
74daa597 SM |
7232 | gdb::observers::all_objfiles_removed.attach (symtab_all_objfiles_removed, |
7233 | "symtab"); | |
c90e7d63 | 7234 | gdb::observers::free_objfile.attach (symtab_free_objfile_observer, "symtab"); |
c906108c | 7235 | } |