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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 | 19 | |
1298c32f | 20 | #include "dwarf2/call-site.h" |
c906108c | 21 | #include "symtab.h" |
e5dc0d5d | 22 | #include "event-top.h" |
c906108c SS |
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" | |
d322d6d6 | 30 | #include "gdbsupport/gdb_regex.h" |
c906108c SS |
31 | #include "expression.h" |
32 | #include "language.h" | |
33 | #include "demangle.h" | |
34 | #include "inferior.h" | |
0378c332 | 35 | #include "source.h" |
ef0f16cc | 36 | #include "filenames.h" |
1bae87b9 | 37 | #include "objc-lang.h" |
6aecb9c2 | 38 | #include "d-lang.h" |
1f8173e6 | 39 | #include "ada-lang.h" |
a766d390 | 40 | #include "go-lang.h" |
cd6c7346 | 41 | #include "p-lang.h" |
ff013f42 | 42 | #include "addrmap.h" |
529480d0 | 43 | #include "cli/cli-utils.h" |
1ed9f74e | 44 | #include "cli/cli-style.h" |
50a5f187 | 45 | #include "cli/cli-cmds.h" |
cce0e923 | 46 | #include "fnmatch.h" |
2de7ced7 | 47 | #include "hashtab.h" |
12615cba | 48 | #include "typeprint.h" |
2de7ced7 | 49 | |
bf31fd38 | 50 | #include "gdbsupport/gdb_obstack.h" |
fe898f56 | 51 | #include "block.h" |
de4f826b | 52 | #include "dictionary.h" |
c906108c SS |
53 | |
54 | #include <sys/types.h> | |
55 | #include <fcntl.h> | |
53ce3c39 | 56 | #include <sys/stat.h> |
c906108c | 57 | #include <ctype.h> |
015a42b4 | 58 | #include "cp-abi.h" |
71c25dea | 59 | #include "cp-support.h" |
76727919 | 60 | #include "observable.h" |
3a40aaa0 | 61 | #include "solist.h" |
9a044a89 TT |
62 | #include "macrotab.h" |
63 | #include "macroscope.h" | |
c906108c | 64 | |
270140bd | 65 | #include "parser-defs.h" |
ef0b411a | 66 | #include "completer.h" |
5ed8105e | 67 | #include "progspace-and-thread.h" |
6b09f134 | 68 | #include <optional> |
bbf2f4df | 69 | #include "filename-seen-cache.h" |
46a62268 | 70 | #include "arch-utils.h" |
b9c04fb2 | 71 | #include <algorithm> |
8082468f | 72 | #include <string_view> |
268a13a5 | 73 | #include "gdbsupport/pathstuff.h" |
1a6ff1a9 | 74 | #include "gdbsupport/common-utils.h" |
fe6356de | 75 | #include <optional> |
ccefe4c4 | 76 | |
ff6c39cf | 77 | /* Forward declarations for local functions. */ |
c906108c | 78 | |
0b39b52e | 79 | static void rbreak_command (const char *, int); |
c906108c | 80 | |
977a0c16 | 81 | static int find_line_common (const linetable *, int, int *, int); |
c906108c | 82 | |
d12307c1 PMR |
83 | static struct block_symbol |
84 | lookup_symbol_aux (const char *name, | |
de63c46b | 85 | symbol_name_match_type match_type, |
d12307c1 | 86 | const struct block *block, |
ccf41c24 | 87 | const domain_search_flags domain, |
d12307c1 PMR |
88 | enum language language, |
89 | struct field_of_this_result *); | |
fba7f19c | 90 | |
e4051eeb | 91 | static |
d12307c1 | 92 | struct block_symbol lookup_local_symbol (const char *name, |
de63c46b | 93 | symbol_name_match_type match_type, |
d12307c1 | 94 | const struct block *block, |
ccf41c24 | 95 | const domain_search_flags domain, |
d12307c1 | 96 | enum language language); |
8155455b | 97 | |
d12307c1 | 98 | static struct block_symbol |
c32e6a04 CB |
99 | lookup_symbol_in_objfile (struct objfile *objfile, |
100 | enum block_enum block_index, | |
ccf41c24 TT |
101 | const char *name, |
102 | const domain_search_flags 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 | ||
ccf41c24 TT |
174 | /* The domain that was searched for initially. This must exactly |
175 | match. */ | |
176 | domain_search_flags domain; | |
177 | ||
52059ffd TT |
178 | union |
179 | { | |
d12307c1 | 180 | struct block_symbol found; |
ccf41c24 | 181 | char *name; |
52059ffd TT |
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) | |
ccf41c24 | 191 | xfree (slot->value.name); |
82f910ea PW |
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 | { | |
878e8948 | 308 | #define SYM_DOMAIN(X) \ |
6771fc6f TT |
309 | case X ## _DOMAIN: return #X "_DOMAIN"; |
310 | #include "sym-domains.def" | |
878e8948 | 311 | #undef SYM_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[] = { | |
878e8948 | 322 | #define SYM_DOMAIN(X) \ |
25f31e18 TT |
323 | MAP_ENUM_FLAG (SEARCH_ ## X ## _DOMAIN), |
324 | #include "sym-domains.def" | |
878e8948 | 325 | #undef SYM_DOMAIN |
25f31e18 TT |
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 | { | |
878e8948 | 342 | #define SYM_DOMAIN(X) \ |
88ff5355 TT |
343 | case X ## _DOMAIN: break; |
344 | #include "sym-domains.def" | |
878e8948 | 345 | #undef SYM_DOMAIN |
88ff5355 TT |
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; | |
878e8948 | 363 | #define SYM_DOMAIN(X) \ |
88ff5355 TT |
364 | check &= ~ (int) SEARCH_ ## X ## _DOMAIN; |
365 | #include "sym-domains.def" | |
878e8948 | 366 | #undef SYM_DOMAIN |
88ff5355 TT |
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, | |
ccf41c24 | 1246 | const char *name, domain_search_flags domain) |
f57d2163 DE |
1247 | { |
1248 | unsigned int hash = (uintptr_t) objfile_context; | |
1249 | ||
1250 | if (name != NULL) | |
1251 | hash += htab_hash_string (name); | |
1252 | ||
ccf41c24 | 1253 | hash += domain * 7; |
f57d2163 DE |
1254 | |
1255 | return hash; | |
1256 | } | |
1257 | ||
1258 | /* Equality function for the symbol cache. */ | |
1259 | ||
1260 | static int | |
1261 | eq_symbol_entry (const struct symbol_cache_slot *slot, | |
1262 | const struct objfile *objfile_context, | |
ccf41c24 | 1263 | const char *name, domain_search_flags domain) |
f57d2163 DE |
1264 | { |
1265 | const char *slot_name; | |
f57d2163 DE |
1266 | |
1267 | if (slot->state == SYMBOL_SLOT_UNUSED) | |
1268 | return 0; | |
1269 | ||
1270 | if (slot->objfile_context != objfile_context) | |
1271 | return 0; | |
1272 | ||
ccf41c24 | 1273 | domain_search_flags slot_domain = slot->domain; |
f57d2163 | 1274 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) |
ccf41c24 | 1275 | slot_name = slot->value.name; |
f57d2163 | 1276 | else |
ccf41c24 | 1277 | slot_name = slot->value.found.symbol->search_name (); |
f57d2163 DE |
1278 | |
1279 | /* NULL names match. */ | |
1280 | if (slot_name == NULL && name == NULL) | |
1281 | { | |
1282 | /* But there's no point in calling symbol_matches_domain in the | |
1283 | SYMBOL_SLOT_FOUND case. */ | |
1284 | if (slot_domain != domain) | |
1285 | return 0; | |
1286 | } | |
1287 | else if (slot_name != NULL && name != NULL) | |
1288 | { | |
b5ec771e PA |
1289 | /* It's important that we use the same comparison that was done |
1290 | the first time through. If the slot records a found symbol, | |
1291 | then this means using the symbol name comparison function of | |
987012b8 | 1292 | the symbol's language with symbol->search_name (). See |
ccf41c24 | 1293 | dictionary.c. |
f57d2163 DE |
1294 | |
1295 | If the slot records a not-found symbol, then require a precise match. | |
1296 | We could still be lax with whitespace like strcmp_iw though. */ | |
1297 | ||
ccf41c24 TT |
1298 | if (slot_domain != domain) |
1299 | return 0; | |
1300 | ||
f57d2163 DE |
1301 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) |
1302 | { | |
1303 | if (strcmp (slot_name, name) != 0) | |
1304 | return 0; | |
f57d2163 DE |
1305 | } |
1306 | else | |
1307 | { | |
d12307c1 | 1308 | struct symbol *sym = slot->value.found.symbol; |
b5ec771e | 1309 | lookup_name_info lookup_name (name, symbol_name_match_type::FULL); |
f57d2163 | 1310 | |
81e32b6a | 1311 | if (!symbol_matches_search_name (sym, lookup_name)) |
f57d2163 | 1312 | return 0; |
f57d2163 DE |
1313 | } |
1314 | } | |
1315 | else | |
1316 | { | |
1317 | /* Only one name is NULL. */ | |
1318 | return 0; | |
1319 | } | |
1320 | ||
1321 | return 1; | |
1322 | } | |
1323 | ||
1324 | /* Given a cache of size SIZE, return the size of the struct (with variable | |
1325 | length array) in bytes. */ | |
1326 | ||
1327 | static size_t | |
1328 | symbol_cache_byte_size (unsigned int size) | |
1329 | { | |
1330 | return (sizeof (struct block_symbol_cache) | |
1331 | + ((size - 1) * sizeof (struct symbol_cache_slot))); | |
1332 | } | |
1333 | ||
1334 | /* Resize CACHE. */ | |
1335 | ||
1336 | static void | |
1337 | resize_symbol_cache (struct symbol_cache *cache, unsigned int new_size) | |
1338 | { | |
1339 | /* If there's no change in size, don't do anything. | |
1340 | All caches have the same size, so we can just compare with the size | |
1341 | of the global symbols cache. */ | |
1342 | if ((cache->global_symbols != NULL | |
1343 | && cache->global_symbols->size == new_size) | |
1344 | || (cache->global_symbols == NULL | |
1345 | && new_size == 0)) | |
1346 | return; | |
1347 | ||
82f910ea PW |
1348 | destroy_block_symbol_cache (cache->global_symbols); |
1349 | destroy_block_symbol_cache (cache->static_symbols); | |
f57d2163 DE |
1350 | |
1351 | if (new_size == 0) | |
1352 | { | |
1353 | cache->global_symbols = NULL; | |
1354 | cache->static_symbols = NULL; | |
1355 | } | |
1356 | else | |
1357 | { | |
1358 | size_t total_size = symbol_cache_byte_size (new_size); | |
1359 | ||
224c3ddb SM |
1360 | cache->global_symbols |
1361 | = (struct block_symbol_cache *) xcalloc (1, total_size); | |
1362 | cache->static_symbols | |
1363 | = (struct block_symbol_cache *) xcalloc (1, total_size); | |
f57d2163 DE |
1364 | cache->global_symbols->size = new_size; |
1365 | cache->static_symbols->size = new_size; | |
1366 | } | |
1367 | } | |
1368 | ||
f57d2163 DE |
1369 | /* Return the symbol cache of PSPACE. |
1370 | Create one if it doesn't exist yet. */ | |
1371 | ||
1372 | static struct symbol_cache * | |
1373 | get_symbol_cache (struct program_space *pspace) | |
1374 | { | |
3017b94d | 1375 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 DE |
1376 | |
1377 | if (cache == NULL) | |
1378 | { | |
3017b94d TT |
1379 | cache = symbol_cache_key.emplace (pspace); |
1380 | resize_symbol_cache (cache, symbol_cache_size); | |
f57d2163 DE |
1381 | } |
1382 | ||
1383 | return cache; | |
1384 | } | |
1385 | ||
f57d2163 DE |
1386 | /* Set the size of the symbol cache in all program spaces. */ |
1387 | ||
1388 | static void | |
1389 | set_symbol_cache_size (unsigned int new_size) | |
1390 | { | |
94c93c35 | 1391 | for (struct program_space *pspace : program_spaces) |
f57d2163 | 1392 | { |
3017b94d | 1393 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 DE |
1394 | |
1395 | /* The pspace could have been created but not have a cache yet. */ | |
1396 | if (cache != NULL) | |
1397 | resize_symbol_cache (cache, new_size); | |
1398 | } | |
1399 | } | |
1400 | ||
1401 | /* Called when symbol-cache-size is set. */ | |
1402 | ||
1403 | static void | |
eb4c3f4a | 1404 | set_symbol_cache_size_handler (const char *args, int from_tty, |
f57d2163 DE |
1405 | struct cmd_list_element *c) |
1406 | { | |
1407 | if (new_symbol_cache_size > MAX_SYMBOL_CACHE_SIZE) | |
1408 | { | |
1409 | /* Restore the previous value. | |
1410 | This is the value the "show" command prints. */ | |
1411 | new_symbol_cache_size = symbol_cache_size; | |
1412 | ||
1413 | error (_("Symbol cache size is too large, max is %u."), | |
1414 | MAX_SYMBOL_CACHE_SIZE); | |
1415 | } | |
1416 | symbol_cache_size = new_symbol_cache_size; | |
1417 | ||
1418 | set_symbol_cache_size (symbol_cache_size); | |
1419 | } | |
1420 | ||
1421 | /* Lookup symbol NAME,DOMAIN in BLOCK in the symbol cache of PSPACE. | |
1422 | OBJFILE_CONTEXT is the current objfile, which may be NULL. | |
1423 | The result is the symbol if found, SYMBOL_LOOKUP_FAILED if a previous lookup | |
1424 | failed (and thus this one will too), or NULL if the symbol is not present | |
1425 | in the cache. | |
d0509ba4 CB |
1426 | *BSC_PTR and *SLOT_PTR are set to the cache and slot of the symbol, which |
1427 | can be used to save the result of a full lookup attempt. */ | |
f57d2163 | 1428 | |
d12307c1 | 1429 | static struct block_symbol |
f57d2163 | 1430 | symbol_cache_lookup (struct symbol_cache *cache, |
ddbcedf5 | 1431 | struct objfile *objfile_context, enum block_enum block, |
ccf41c24 | 1432 | const char *name, domain_search_flags domain, |
f57d2163 DE |
1433 | struct block_symbol_cache **bsc_ptr, |
1434 | struct symbol_cache_slot **slot_ptr) | |
1435 | { | |
1436 | struct block_symbol_cache *bsc; | |
1437 | unsigned int hash; | |
1438 | struct symbol_cache_slot *slot; | |
1439 | ||
1440 | if (block == GLOBAL_BLOCK) | |
1441 | bsc = cache->global_symbols; | |
1442 | else | |
1443 | bsc = cache->static_symbols; | |
1444 | if (bsc == NULL) | |
1445 | { | |
1446 | *bsc_ptr = NULL; | |
1447 | *slot_ptr = NULL; | |
6640a367 | 1448 | return {}; |
f57d2163 DE |
1449 | } |
1450 | ||
1451 | hash = hash_symbol_entry (objfile_context, name, domain); | |
1452 | slot = bsc->symbols + hash % bsc->size; | |
f57d2163 | 1453 | |
d0509ba4 CB |
1454 | *bsc_ptr = bsc; |
1455 | *slot_ptr = slot; | |
1456 | ||
f57d2163 DE |
1457 | if (eq_symbol_entry (slot, objfile_context, name, domain)) |
1458 | { | |
b1e678d9 AB |
1459 | symbol_lookup_debug_printf ("%s block symbol cache hit%s for %s, %s", |
1460 | block == GLOBAL_BLOCK ? "Global" : "Static", | |
1461 | slot->state == SYMBOL_SLOT_NOT_FOUND | |
1462 | ? " (not found)" : "", name, | |
ccf41c24 | 1463 | domain_name (domain).c_str ()); |
f57d2163 DE |
1464 | ++bsc->hits; |
1465 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
1466 | return SYMBOL_LOOKUP_FAILED; | |
1467 | return slot->value.found; | |
1468 | } | |
1469 | ||
2c26b84f DE |
1470 | /* Symbol is not present in the cache. */ |
1471 | ||
b1e678d9 AB |
1472 | symbol_lookup_debug_printf ("%s block symbol cache miss for %s, %s", |
1473 | block == GLOBAL_BLOCK ? "Global" : "Static", | |
ccf41c24 | 1474 | name, domain_name (domain).c_str ()); |
f57d2163 | 1475 | ++bsc->misses; |
6640a367 | 1476 | return {}; |
f57d2163 DE |
1477 | } |
1478 | ||
f57d2163 DE |
1479 | /* Mark SYMBOL as found in SLOT. |
1480 | OBJFILE_CONTEXT is the current objfile when the lookup was done, or NULL | |
1481 | if it's not needed to distinguish lookups (STATIC_BLOCK). It is *not* | |
1482 | necessarily the objfile the symbol was found in. */ | |
1483 | ||
1484 | static void | |
1485 | symbol_cache_mark_found (struct block_symbol_cache *bsc, | |
1486 | struct symbol_cache_slot *slot, | |
1487 | struct objfile *objfile_context, | |
d12307c1 | 1488 | struct symbol *symbol, |
ccf41c24 TT |
1489 | const struct block *block, |
1490 | domain_search_flags domain) | |
f57d2163 DE |
1491 | { |
1492 | if (bsc == NULL) | |
1493 | return; | |
1494 | if (slot->state != SYMBOL_SLOT_UNUSED) | |
1495 | { | |
1496 | ++bsc->collisions; | |
1497 | symbol_cache_clear_slot (slot); | |
1498 | } | |
1499 | slot->state = SYMBOL_SLOT_FOUND; | |
1500 | slot->objfile_context = objfile_context; | |
d12307c1 PMR |
1501 | slot->value.found.symbol = symbol; |
1502 | slot->value.found.block = block; | |
ccf41c24 | 1503 | slot->domain = domain; |
f57d2163 DE |
1504 | } |
1505 | ||
1506 | /* Mark symbol NAME, DOMAIN as not found in SLOT. | |
1507 | OBJFILE_CONTEXT is the current objfile when the lookup was done, or NULL | |
1508 | if it's not needed to distinguish lookups (STATIC_BLOCK). */ | |
1509 | ||
1510 | static void | |
1511 | symbol_cache_mark_not_found (struct block_symbol_cache *bsc, | |
1512 | struct symbol_cache_slot *slot, | |
1513 | struct objfile *objfile_context, | |
ccf41c24 | 1514 | const char *name, domain_search_flags domain) |
f57d2163 DE |
1515 | { |
1516 | if (bsc == NULL) | |
1517 | return; | |
1518 | if (slot->state != SYMBOL_SLOT_UNUSED) | |
1519 | { | |
1520 | ++bsc->collisions; | |
1521 | symbol_cache_clear_slot (slot); | |
1522 | } | |
1523 | slot->state = SYMBOL_SLOT_NOT_FOUND; | |
1524 | slot->objfile_context = objfile_context; | |
ccf41c24 TT |
1525 | slot->value.name = xstrdup (name); |
1526 | slot->domain = domain; | |
f57d2163 DE |
1527 | } |
1528 | ||
1529 | /* Flush the symbol cache of PSPACE. */ | |
1530 | ||
1531 | static void | |
1532 | symbol_cache_flush (struct program_space *pspace) | |
1533 | { | |
3017b94d | 1534 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 | 1535 | int pass; |
f57d2163 DE |
1536 | |
1537 | if (cache == NULL) | |
1538 | return; | |
1539 | if (cache->global_symbols == NULL) | |
1540 | { | |
1541 | gdb_assert (symbol_cache_size == 0); | |
1542 | gdb_assert (cache->static_symbols == NULL); | |
1543 | return; | |
1544 | } | |
1545 | ||
1546 | /* If the cache is untouched since the last flush, early exit. | |
1547 | This is important for performance during the startup of a program linked | |
1548 | with 100s (or 1000s) of shared libraries. */ | |
1549 | if (cache->global_symbols->misses == 0 | |
1550 | && cache->static_symbols->misses == 0) | |
1551 | return; | |
1552 | ||
1553 | gdb_assert (cache->global_symbols->size == symbol_cache_size); | |
1554 | gdb_assert (cache->static_symbols->size == symbol_cache_size); | |
1555 | ||
1556 | for (pass = 0; pass < 2; ++pass) | |
1557 | { | |
1558 | struct block_symbol_cache *bsc | |
1559 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1560 | unsigned int i; | |
1561 | ||
1562 | for (i = 0; i < bsc->size; ++i) | |
1563 | symbol_cache_clear_slot (&bsc->symbols[i]); | |
1564 | } | |
1565 | ||
1566 | cache->global_symbols->hits = 0; | |
1567 | cache->global_symbols->misses = 0; | |
1568 | cache->global_symbols->collisions = 0; | |
1569 | cache->static_symbols->hits = 0; | |
1570 | cache->static_symbols->misses = 0; | |
1571 | cache->static_symbols->collisions = 0; | |
1572 | } | |
1573 | ||
1574 | /* Dump CACHE. */ | |
1575 | ||
1576 | static void | |
1577 | symbol_cache_dump (const struct symbol_cache *cache) | |
1578 | { | |
1579 | int pass; | |
1580 | ||
1581 | if (cache->global_symbols == NULL) | |
1582 | { | |
6cb06a8c | 1583 | gdb_printf (" <disabled>\n"); |
f57d2163 DE |
1584 | return; |
1585 | } | |
1586 | ||
1587 | for (pass = 0; pass < 2; ++pass) | |
1588 | { | |
1589 | const struct block_symbol_cache *bsc | |
1590 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1591 | unsigned int i; | |
1592 | ||
1593 | if (pass == 0) | |
6cb06a8c | 1594 | gdb_printf ("Global symbols:\n"); |
f57d2163 | 1595 | else |
6cb06a8c | 1596 | gdb_printf ("Static symbols:\n"); |
f57d2163 DE |
1597 | |
1598 | for (i = 0; i < bsc->size; ++i) | |
1599 | { | |
1600 | const struct symbol_cache_slot *slot = &bsc->symbols[i]; | |
1601 | ||
1602 | QUIT; | |
1603 | ||
1604 | switch (slot->state) | |
1605 | { | |
1606 | case SYMBOL_SLOT_UNUSED: | |
1607 | break; | |
1608 | case SYMBOL_SLOT_NOT_FOUND: | |
6cb06a8c TT |
1609 | gdb_printf (" [%4u] = %s, %s %s (not found)\n", i, |
1610 | host_address_to_string (slot->objfile_context), | |
ccf41c24 TT |
1611 | slot->value.name, |
1612 | domain_name (slot->domain).c_str ()); | |
f57d2163 DE |
1613 | break; |
1614 | case SYMBOL_SLOT_FOUND: | |
d12307c1 PMR |
1615 | { |
1616 | struct symbol *found = slot->value.found.symbol; | |
1617 | const struct objfile *context = slot->objfile_context; | |
1618 | ||
6cb06a8c TT |
1619 | gdb_printf (" [%4u] = %s, %s %s\n", i, |
1620 | host_address_to_string (context), | |
1621 | found->print_name (), | |
1622 | domain_name (found->domain ())); | |
d12307c1 PMR |
1623 | break; |
1624 | } | |
f57d2163 DE |
1625 | } |
1626 | } | |
1627 | } | |
1628 | } | |
1629 | ||
1630 | /* The "mt print symbol-cache" command. */ | |
1631 | ||
1632 | static void | |
510e5e56 | 1633 | maintenance_print_symbol_cache (const char *args, int from_tty) |
f57d2163 | 1634 | { |
94c93c35 | 1635 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1636 | { |
1637 | struct symbol_cache *cache; | |
1638 | ||
6cb06a8c TT |
1639 | gdb_printf (_("Symbol cache for pspace %d\n%s:\n"), |
1640 | pspace->num, | |
1641 | pspace->symfile_object_file != NULL | |
1642 | ? objfile_name (pspace->symfile_object_file) | |
1643 | : "(no object file)"); | |
f57d2163 DE |
1644 | |
1645 | /* If the cache hasn't been created yet, avoid creating one. */ | |
3017b94d | 1646 | cache = symbol_cache_key.get (pspace); |
f57d2163 | 1647 | if (cache == NULL) |
6cb06a8c | 1648 | gdb_printf (" <empty>\n"); |
f57d2163 DE |
1649 | else |
1650 | symbol_cache_dump (cache); | |
1651 | } | |
1652 | } | |
1653 | ||
1654 | /* The "mt flush-symbol-cache" command. */ | |
1655 | ||
1656 | static void | |
510e5e56 | 1657 | maintenance_flush_symbol_cache (const char *args, int from_tty) |
f57d2163 | 1658 | { |
94c93c35 | 1659 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1660 | { |
1661 | symbol_cache_flush (pspace); | |
1662 | } | |
1663 | } | |
1664 | ||
1665 | /* Print usage statistics of CACHE. */ | |
1666 | ||
1667 | static void | |
1668 | symbol_cache_stats (struct symbol_cache *cache) | |
1669 | { | |
1670 | int pass; | |
1671 | ||
1672 | if (cache->global_symbols == NULL) | |
1673 | { | |
6cb06a8c | 1674 | gdb_printf (" <disabled>\n"); |
f57d2163 DE |
1675 | return; |
1676 | } | |
1677 | ||
1678 | for (pass = 0; pass < 2; ++pass) | |
1679 | { | |
1680 | const struct block_symbol_cache *bsc | |
1681 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1682 | ||
1683 | QUIT; | |
1684 | ||
1685 | if (pass == 0) | |
6cb06a8c | 1686 | gdb_printf ("Global block cache stats:\n"); |
f57d2163 | 1687 | else |
6cb06a8c | 1688 | gdb_printf ("Static block cache stats:\n"); |
f57d2163 | 1689 | |
6cb06a8c TT |
1690 | gdb_printf (" size: %u\n", bsc->size); |
1691 | gdb_printf (" hits: %u\n", bsc->hits); | |
1692 | gdb_printf (" misses: %u\n", bsc->misses); | |
1693 | gdb_printf (" collisions: %u\n", bsc->collisions); | |
f57d2163 DE |
1694 | } |
1695 | } | |
1696 | ||
1697 | /* The "mt print symbol-cache-statistics" command. */ | |
1698 | ||
1699 | static void | |
510e5e56 | 1700 | maintenance_print_symbol_cache_statistics (const char *args, int from_tty) |
f57d2163 | 1701 | { |
94c93c35 | 1702 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1703 | { |
1704 | struct symbol_cache *cache; | |
1705 | ||
6cb06a8c TT |
1706 | gdb_printf (_("Symbol cache statistics for pspace %d\n%s:\n"), |
1707 | pspace->num, | |
1708 | pspace->symfile_object_file != NULL | |
1709 | ? objfile_name (pspace->symfile_object_file) | |
1710 | : "(no object file)"); | |
f57d2163 DE |
1711 | |
1712 | /* If the cache hasn't been created yet, avoid creating one. */ | |
3017b94d | 1713 | cache = symbol_cache_key.get (pspace); |
f57d2163 | 1714 | if (cache == NULL) |
6cb06a8c | 1715 | gdb_printf (" empty, no stats available\n"); |
f57d2163 DE |
1716 | else |
1717 | symbol_cache_stats (cache); | |
1718 | } | |
1719 | } | |
1720 | ||
1721 | /* This module's 'new_objfile' observer. */ | |
1722 | ||
1723 | static void | |
1724 | symtab_new_objfile_observer (struct objfile *objfile) | |
1725 | { | |
74daa597 SM |
1726 | symbol_cache_flush (objfile->pspace); |
1727 | } | |
1728 | ||
1729 | /* This module's 'all_objfiles_removed' observer. */ | |
1730 | ||
1731 | static void | |
1732 | symtab_all_objfiles_removed (program_space *pspace) | |
1733 | { | |
1734 | symbol_cache_flush (pspace); | |
a0a031bc | 1735 | |
74daa597 SM |
1736 | /* Forget everything we know about the main function. */ |
1737 | set_main_name (pspace, nullptr, language_unknown); | |
f57d2163 DE |
1738 | } |
1739 | ||
1740 | /* This module's 'free_objfile' observer. */ | |
1741 | ||
1742 | static void | |
1743 | symtab_free_objfile_observer (struct objfile *objfile) | |
1744 | { | |
1745 | symbol_cache_flush (objfile->pspace); | |
1746 | } | |
1747 | \f | |
49c1de0e | 1748 | /* See symtab.h. */ |
3f01c12b | 1749 | |
49c1de0e TT |
1750 | void |
1751 | fixup_symbol_section (struct symbol *sym, struct objfile *objfile) | |
c906108c | 1752 | { |
49c1de0e TT |
1753 | gdb_assert (sym != nullptr); |
1754 | gdb_assert (sym->is_objfile_owned ()); | |
1755 | gdb_assert (objfile != nullptr); | |
1756 | gdb_assert (sym->section_index () == -1); | |
1757 | ||
1758 | /* Note that if this ends up as -1, fixup_section will handle that | |
1759 | reasonably well. So, it's fine to use the objfile's section | |
1760 | index without doing the check that is done by the wrapper macros | |
1761 | like SECT_OFF_TEXT. */ | |
1762 | int fallback; | |
1763 | switch (sym->aclass ()) | |
1764 | { | |
1765 | case LOC_STATIC: | |
1766 | fallback = objfile->sect_index_data; | |
1767 | break; | |
1768 | ||
1769 | case LOC_LABEL: | |
1770 | fallback = objfile->sect_index_text; | |
1771 | break; | |
1772 | ||
1773 | default: | |
1774 | /* Nothing else will be listed in the minsyms -- no use looking | |
1775 | it up. */ | |
1776 | return; | |
1777 | } | |
1778 | ||
1779 | CORE_ADDR addr = sym->value_address (); | |
1780 | ||
c906108c | 1781 | struct minimal_symbol *msym; |
c906108c | 1782 | |
bccdca4a UW |
1783 | /* First, check whether a minimal symbol with the same name exists |
1784 | and points to the same address. The address check is required | |
1785 | e.g. on PowerPC64, where the minimal symbol for a function will | |
1786 | point to the function descriptor, while the debug symbol will | |
1787 | point to the actual function code. */ | |
49c1de0e | 1788 | msym = lookup_minimal_symbol_by_pc_name (addr, sym->linkage_name (), |
4d4eaa30 | 1789 | objfile); |
907fc202 | 1790 | if (msym) |
49c1de0e | 1791 | sym->set_section_index (msym->section_index ()); |
907fc202 | 1792 | else |
19e2d14b KB |
1793 | { |
1794 | /* Static, function-local variables do appear in the linker | |
1795 | (minimal) symbols, but are frequently given names that won't | |
1796 | be found via lookup_minimal_symbol(). E.g., it has been | |
1797 | observed in frv-uclinux (ELF) executables that a static, | |
1798 | function-local variable named "foo" might appear in the | |
1799 | linker symbols as "foo.6" or "foo.3". Thus, there is no | |
1800 | point in attempting to extend the lookup-by-name mechanism to | |
1801 | handle this case due to the fact that there can be multiple | |
1802 | names. | |
9af17804 | 1803 | |
19e2d14b KB |
1804 | So, instead, search the section table when lookup by name has |
1805 | failed. The ``addr'' and ``endaddr'' fields may have already | |
6a053cb1 TT |
1806 | been relocated. If so, the relocation offset needs to be |
1807 | subtracted from these values when performing the comparison. | |
1808 | We unconditionally subtract it, because, when no relocation | |
1809 | has been performed, the value will simply be zero. | |
9af17804 | 1810 | |
19e2d14b KB |
1811 | The address of the symbol whose section we're fixing up HAS |
1812 | NOT BEEN adjusted (relocated) yet. It can't have been since | |
1813 | the section isn't yet known and knowing the section is | |
1814 | necessary in order to add the correct relocation value. In | |
1815 | other words, we wouldn't even be in this function (attempting | |
1816 | to compute the section) if it were already known. | |
1817 | ||
1818 | Note that it is possible to search the minimal symbols | |
1819 | (subtracting the relocation value if necessary) to find the | |
1820 | matching minimal symbol, but this is overkill and much less | |
1821 | efficient. It is not necessary to find the matching minimal | |
9af17804 DE |
1822 | symbol, only its section. |
1823 | ||
19e2d14b KB |
1824 | Note that this technique (of doing a section table search) |
1825 | can fail when unrelocated section addresses overlap. For | |
1826 | this reason, we still attempt a lookup by name prior to doing | |
1827 | a search of the section table. */ | |
9af17804 | 1828 | |
5250cbc8 | 1829 | for (obj_section *s : objfile->sections ()) |
19e2d14b | 1830 | { |
49c1de0e TT |
1831 | if ((bfd_section_flags (s->the_bfd_section) & SEC_ALLOC) == 0) |
1832 | continue; | |
1833 | ||
9ed8433a | 1834 | int idx = s - objfile->sections_start; |
6a053cb1 | 1835 | CORE_ADDR offset = objfile->section_offsets[idx]; |
19e2d14b | 1836 | |
e27d198c TT |
1837 | if (fallback == -1) |
1838 | fallback = idx; | |
1839 | ||
0c1bcd23 | 1840 | if (s->addr () - offset <= addr && addr < s->endaddr () - offset) |
19e2d14b | 1841 | { |
49c1de0e | 1842 | sym->set_section_index (idx); |
19e2d14b KB |
1843 | return; |
1844 | } | |
1845 | } | |
e27d198c TT |
1846 | |
1847 | /* If we didn't find the section, assume it is in the first | |
1848 | section. If there is no allocated section, then it hardly | |
1849 | matters what we pick, so just pick zero. */ | |
1850 | if (fallback == -1) | |
49c1de0e | 1851 | sym->set_section_index (0); |
e27d198c | 1852 | else |
49c1de0e | 1853 | sym->set_section_index (fallback); |
19e2d14b | 1854 | } |
c906108c SS |
1855 | } |
1856 | ||
b5ec771e PA |
1857 | /* See symtab.h. */ |
1858 | ||
1859 | demangle_for_lookup_info::demangle_for_lookup_info | |
1860 | (const lookup_name_info &lookup_name, language lang) | |
1861 | { | |
1862 | demangle_result_storage storage; | |
1863 | ||
c62446b1 PA |
1864 | if (lookup_name.ignore_parameters () && lang == language_cplus) |
1865 | { | |
1866 | gdb::unique_xmalloc_ptr<char> without_params | |
e0802d59 | 1867 | = cp_remove_params_if_any (lookup_name.c_str (), |
c62446b1 PA |
1868 | lookup_name.completion_mode ()); |
1869 | ||
1870 | if (without_params != NULL) | |
1871 | { | |
de63c46b PA |
1872 | if (lookup_name.match_type () != symbol_name_match_type::SEARCH_NAME) |
1873 | m_demangled_name = demangle_for_lookup (without_params.get (), | |
1874 | lang, storage); | |
c62446b1 PA |
1875 | return; |
1876 | } | |
1877 | } | |
1878 | ||
de63c46b | 1879 | if (lookup_name.match_type () == symbol_name_match_type::SEARCH_NAME) |
e0802d59 | 1880 | m_demangled_name = lookup_name.c_str (); |
de63c46b | 1881 | else |
e0802d59 | 1882 | m_demangled_name = demangle_for_lookup (lookup_name.c_str (), |
de63c46b | 1883 | lang, storage); |
b5ec771e PA |
1884 | } |
1885 | ||
1886 | /* See symtab.h. */ | |
1887 | ||
1888 | const lookup_name_info & | |
1889 | lookup_name_info::match_any () | |
1890 | { | |
1891 | /* Lookup any symbol that "" would complete. I.e., this matches all | |
1892 | symbol names. */ | |
e0802d59 | 1893 | static const lookup_name_info lookup_name ("", symbol_name_match_type::FULL, |
b5ec771e PA |
1894 | true); |
1895 | ||
1896 | return lookup_name; | |
1897 | } | |
1898 | ||
f8eba3c6 | 1899 | /* Compute the demangled form of NAME as used by the various symbol |
2f408ecb PA |
1900 | lookup functions. The result can either be the input NAME |
1901 | directly, or a pointer to a buffer owned by the STORAGE object. | |
f8eba3c6 | 1902 | |
2f408ecb | 1903 | For Ada, this function just returns NAME, unmodified. |
f8eba3c6 TT |
1904 | Normally, Ada symbol lookups are performed using the encoded name |
1905 | rather than the demangled name, and so it might seem to make sense | |
1906 | for this function to return an encoded version of NAME. | |
1907 | Unfortunately, we cannot do this, because this function is used in | |
1908 | circumstances where it is not appropriate to try to encode NAME. | |
1909 | For instance, when displaying the frame info, we demangle the name | |
1910 | of each parameter, and then perform a symbol lookup inside our | |
1911 | function using that demangled name. In Ada, certain functions | |
1912 | have internally-generated parameters whose name contain uppercase | |
1913 | characters. Encoding those name would result in those uppercase | |
1914 | characters to become lowercase, and thus cause the symbol lookup | |
1915 | to fail. */ | |
c906108c | 1916 | |
2f408ecb | 1917 | const char * |
f8eba3c6 | 1918 | demangle_for_lookup (const char *name, enum language lang, |
2f408ecb | 1919 | demangle_result_storage &storage) |
c906108c | 1920 | { |
9c37b5ae | 1921 | /* If we are using C++, D, or Go, demangle the name before doing a |
c378eb4e | 1922 | lookup, so we can always binary search. */ |
53c5240f | 1923 | if (lang == language_cplus) |
729051e6 | 1924 | { |
3456e70c TT |
1925 | gdb::unique_xmalloc_ptr<char> demangled_name |
1926 | = gdb_demangle (name, DMGL_ANSI | DMGL_PARAMS); | |
2f408ecb | 1927 | if (demangled_name != NULL) |
3456e70c | 1928 | return storage.set_malloc_ptr (std::move (demangled_name)); |
2f408ecb PA |
1929 | |
1930 | /* If we were given a non-mangled name, canonicalize it | |
1931 | according to the language (so far only for C++). */ | |
596dc4ad TT |
1932 | gdb::unique_xmalloc_ptr<char> canon = cp_canonicalize_string (name); |
1933 | if (canon != nullptr) | |
1934 | return storage.set_malloc_ptr (std::move (canon)); | |
729051e6 | 1935 | } |
6aecb9c2 JB |
1936 | else if (lang == language_d) |
1937 | { | |
3456e70c | 1938 | gdb::unique_xmalloc_ptr<char> demangled_name = d_demangle (name, 0); |
2f408ecb | 1939 | if (demangled_name != NULL) |
3456e70c | 1940 | return storage.set_malloc_ptr (std::move (demangled_name)); |
6aecb9c2 | 1941 | } |
a766d390 DE |
1942 | else if (lang == language_go) |
1943 | { | |
3456e70c | 1944 | gdb::unique_xmalloc_ptr<char> demangled_name |
82fc57fd | 1945 | = language_def (language_go)->demangle_symbol (name, 0); |
2f408ecb | 1946 | if (demangled_name != NULL) |
3456e70c | 1947 | return storage.set_malloc_ptr (std::move (demangled_name)); |
a766d390 | 1948 | } |
729051e6 | 1949 | |
2f408ecb | 1950 | return name; |
f8eba3c6 TT |
1951 | } |
1952 | ||
5ffa0793 PA |
1953 | /* See symtab.h. */ |
1954 | ||
1955 | unsigned int | |
1956 | search_name_hash (enum language language, const char *search_name) | |
1957 | { | |
fb8006fd | 1958 | return language_def (language)->search_name_hash (search_name); |
5ffa0793 PA |
1959 | } |
1960 | ||
cf901d3b | 1961 | /* See symtab.h. |
f8eba3c6 | 1962 | |
cf901d3b | 1963 | This function (or rather its subordinates) have a bunch of loops and |
7e082072 DE |
1964 | it would seem to be attractive to put in some QUIT's (though I'm not really |
1965 | sure whether it can run long enough to be really important). But there | |
f8eba3c6 | 1966 | are a few calls for which it would appear to be bad news to quit |
7e082072 | 1967 | out of here: e.g., find_proc_desc in alpha-mdebug-tdep.c. (Note |
f8eba3c6 TT |
1968 | that there is C++ code below which can error(), but that probably |
1969 | doesn't affect these calls since they are looking for a known | |
1970 | variable and thus can probably assume it will never hit the C++ | |
1971 | code). */ | |
1972 | ||
d12307c1 | 1973 | struct block_symbol |
f8eba3c6 | 1974 | lookup_symbol_in_language (const char *name, const struct block *block, |
ccf41c24 TT |
1975 | const domain_search_flags domain, |
1976 | enum language lang, | |
1993b719 | 1977 | struct field_of_this_result *is_a_field_of_this) |
f8eba3c6 | 1978 | { |
2698da26 AB |
1979 | SYMBOL_LOOKUP_SCOPED_DEBUG_ENTER_EXIT; |
1980 | ||
2f408ecb PA |
1981 | demangle_result_storage storage; |
1982 | const char *modified_name = demangle_for_lookup (name, lang, storage); | |
f8eba3c6 | 1983 | |
de63c46b PA |
1984 | return lookup_symbol_aux (modified_name, |
1985 | symbol_name_match_type::FULL, | |
1986 | block, domain, lang, | |
2f408ecb | 1987 | is_a_field_of_this); |
fba7f19c EZ |
1988 | } |
1989 | ||
cf901d3b | 1990 | /* See symtab.h. */ |
53c5240f | 1991 | |
d12307c1 | 1992 | struct block_symbol |
53c5240f | 1993 | lookup_symbol (const char *name, const struct block *block, |
ccf41c24 | 1994 | domain_search_flags domain, |
1993b719 | 1995 | struct field_of_this_result *is_a_field_of_this) |
53c5240f PA |
1996 | { |
1997 | return lookup_symbol_in_language (name, block, domain, | |
1998 | current_language->la_language, | |
2570f2b7 | 1999 | is_a_field_of_this); |
53c5240f PA |
2000 | } |
2001 | ||
cf901d3b | 2002 | /* See symtab.h. */ |
66a17cb6 | 2003 | |
de63c46b PA |
2004 | struct block_symbol |
2005 | lookup_symbol_search_name (const char *search_name, const struct block *block, | |
ccf41c24 | 2006 | domain_search_flags domain) |
de63c46b PA |
2007 | { |
2008 | return lookup_symbol_aux (search_name, symbol_name_match_type::SEARCH_NAME, | |
2009 | block, domain, language_asm, NULL); | |
2010 | } | |
2011 | ||
2012 | /* See symtab.h. */ | |
2013 | ||
d12307c1 | 2014 | struct block_symbol |
66a17cb6 TT |
2015 | lookup_language_this (const struct language_defn *lang, |
2016 | const struct block *block) | |
2017 | { | |
5bae7c4e | 2018 | if (lang->name_of_this () == NULL || block == NULL) |
6640a367 | 2019 | return {}; |
66a17cb6 | 2020 | |
b1e678d9 AB |
2021 | symbol_lookup_debug_printf_v ("lookup_language_this (%s, %s (objfile %s))", |
2022 | lang->name (), host_address_to_string (block), | |
46baa3c6 | 2023 | objfile_debug_name (block->objfile ())); |
cc485e62 | 2024 | |
e70d6457 TT |
2025 | lookup_name_info this_name (lang->name_of_this (), |
2026 | symbol_name_match_type::SEARCH_NAME); | |
2027 | ||
03de6823 | 2028 | while (block) |
66a17cb6 TT |
2029 | { |
2030 | struct symbol *sym; | |
2031 | ||
e70d6457 | 2032 | sym = block_lookup_symbol (block, this_name, SEARCH_VFT); |
66a17cb6 | 2033 | if (sym != NULL) |
f149aabd | 2034 | { |
b1e678d9 AB |
2035 | symbol_lookup_debug_printf_v |
2036 | ("lookup_language_this (...) = %s (%s, block %s)", | |
2037 | sym->print_name (), host_address_to_string (sym), | |
2038 | host_address_to_string (block)); | |
d12307c1 | 2039 | return (struct block_symbol) {sym, block}; |
f149aabd | 2040 | } |
6c00f721 | 2041 | if (block->function ()) |
03de6823 | 2042 | break; |
f135fe72 | 2043 | block = block->superblock (); |
66a17cb6 | 2044 | } |
03de6823 | 2045 | |
b1e678d9 | 2046 | symbol_lookup_debug_printf_v ("lookup_language_this (...) = NULL"); |
6640a367 | 2047 | return {}; |
66a17cb6 TT |
2048 | } |
2049 | ||
2dc3df72 TT |
2050 | /* Given TYPE, a structure/union, |
2051 | return 1 if the component named NAME from the ultimate target | |
2052 | structure/union is defined, otherwise, return 0. */ | |
2053 | ||
2054 | static int | |
1993b719 TT |
2055 | check_field (struct type *type, const char *name, |
2056 | struct field_of_this_result *is_a_field_of_this) | |
2dc3df72 TT |
2057 | { |
2058 | int i; | |
2059 | ||
2060 | /* The type may be a stub. */ | |
f168693b | 2061 | type = check_typedef (type); |
2dc3df72 | 2062 | |
1f704f76 | 2063 | for (i = type->num_fields () - 1; i >= TYPE_N_BASECLASSES (type); i--) |
2dc3df72 | 2064 | { |
33d16dd9 | 2065 | const char *t_field_name = type->field (i).name (); |
2dc3df72 TT |
2066 | |
2067 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) | |
1993b719 TT |
2068 | { |
2069 | is_a_field_of_this->type = type; | |
ceacbf6e | 2070 | is_a_field_of_this->field = &type->field (i); |
1993b719 TT |
2071 | return 1; |
2072 | } | |
2dc3df72 TT |
2073 | } |
2074 | ||
2075 | /* C++: If it was not found as a data field, then try to return it | |
2076 | as a pointer to a method. */ | |
2077 | ||
2078 | for (i = TYPE_NFN_FIELDS (type) - 1; i >= 0; --i) | |
2079 | { | |
2080 | if (strcmp_iw (TYPE_FN_FIELDLIST_NAME (type, i), name) == 0) | |
1993b719 TT |
2081 | { |
2082 | is_a_field_of_this->type = type; | |
2083 | is_a_field_of_this->fn_field = &TYPE_FN_FIELDLIST (type, i); | |
2084 | return 1; | |
2085 | } | |
2dc3df72 TT |
2086 | } |
2087 | ||
2088 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1993b719 | 2089 | if (check_field (TYPE_BASECLASS (type, i), name, is_a_field_of_this)) |
2dc3df72 TT |
2090 | return 1; |
2091 | ||
2092 | return 0; | |
2093 | } | |
2094 | ||
53c5240f | 2095 | /* Behave like lookup_symbol except that NAME is the natural name |
7e082072 | 2096 | (e.g., demangled name) of the symbol that we're looking for. */ |
5ad1c190 | 2097 | |
d12307c1 | 2098 | static struct block_symbol |
de63c46b PA |
2099 | lookup_symbol_aux (const char *name, symbol_name_match_type match_type, |
2100 | const struct block *block, | |
ccf41c24 | 2101 | const domain_search_flags domain, enum language language, |
1993b719 | 2102 | struct field_of_this_result *is_a_field_of_this) |
fba7f19c | 2103 | { |
2698da26 AB |
2104 | SYMBOL_LOOKUP_SCOPED_DEBUG_ENTER_EXIT; |
2105 | ||
d12307c1 | 2106 | struct block_symbol result; |
53c5240f | 2107 | const struct language_defn *langdef; |
406bc4de | 2108 | |
cc485e62 DE |
2109 | if (symbol_lookup_debug) |
2110 | { | |
d6bc0792 | 2111 | struct objfile *objfile = (block == nullptr |
46baa3c6 | 2112 | ? nullptr : block->objfile ()); |
cc485e62 | 2113 | |
b1e678d9 AB |
2114 | symbol_lookup_debug_printf |
2115 | ("demangled symbol name = \"%s\", block @ %s (objfile %s)", | |
2116 | name, host_address_to_string (block), | |
2117 | objfile != NULL ? objfile_debug_name (objfile) : "NULL"); | |
2118 | symbol_lookup_debug_printf | |
2119 | ("domain name = \"%s\", language = \"%s\")", | |
ccf41c24 | 2120 | domain_name (domain).c_str (), language_str (language)); |
cc485e62 DE |
2121 | } |
2122 | ||
9a146a11 EZ |
2123 | /* Make sure we do something sensible with is_a_field_of_this, since |
2124 | the callers that set this parameter to some non-null value will | |
1993b719 TT |
2125 | certainly use it later. If we don't set it, the contents of |
2126 | is_a_field_of_this are undefined. */ | |
9a146a11 | 2127 | if (is_a_field_of_this != NULL) |
1993b719 | 2128 | memset (is_a_field_of_this, 0, sizeof (*is_a_field_of_this)); |
9a146a11 | 2129 | |
e4051eeb DC |
2130 | /* Search specified block and its superiors. Don't search |
2131 | STATIC_BLOCK or GLOBAL_BLOCK. */ | |
c906108c | 2132 | |
de63c46b | 2133 | result = lookup_local_symbol (name, match_type, block, domain, language); |
d12307c1 | 2134 | if (result.symbol != NULL) |
cc485e62 | 2135 | { |
b1e678d9 AB |
2136 | symbol_lookup_debug_printf |
2137 | ("found symbol @ %s (using lookup_local_symbol)", | |
2138 | host_address_to_string (result.symbol)); | |
d12307c1 | 2139 | return result; |
cc485e62 | 2140 | } |
c906108c | 2141 | |
53c5240f | 2142 | /* If requested to do so by the caller and if appropriate for LANGUAGE, |
13387711 | 2143 | check to see if NAME is a field of `this'. */ |
53c5240f PA |
2144 | |
2145 | langdef = language_def (language); | |
5f9a71c3 | 2146 | |
6592e36f TT |
2147 | /* Don't do this check if we are searching for a struct. It will |
2148 | not be found by check_field, but will be found by other | |
2149 | means. */ | |
ccf41c24 | 2150 | if (is_a_field_of_this != NULL && (domain & SEARCH_STRUCT_DOMAIN) == 0) |
c906108c | 2151 | { |
d12307c1 | 2152 | result = lookup_language_this (langdef, block); |
2b2d9e11 | 2153 | |
d12307c1 | 2154 | if (result.symbol) |
c906108c | 2155 | { |
5f9c5a63 | 2156 | struct type *t = result.symbol->type (); |
9af17804 | 2157 | |
2b2d9e11 VP |
2158 | /* I'm not really sure that type of this can ever |
2159 | be typedefed; just be safe. */ | |
f168693b | 2160 | t = check_typedef (t); |
809f3be1 | 2161 | if (t->is_pointer_or_reference ()) |
27710edb | 2162 | t = t->target_type (); |
9af17804 | 2163 | |
78134374 SM |
2164 | if (t->code () != TYPE_CODE_STRUCT |
2165 | && t->code () != TYPE_CODE_UNION) | |
9af17804 | 2166 | error (_("Internal error: `%s' is not an aggregate"), |
5bae7c4e | 2167 | langdef->name_of_this ()); |
9af17804 | 2168 | |
1993b719 | 2169 | if (check_field (t, name, is_a_field_of_this)) |
cc485e62 | 2170 | { |
b1e678d9 | 2171 | symbol_lookup_debug_printf ("no symbol found"); |
6640a367 | 2172 | return {}; |
cc485e62 | 2173 | } |
c906108c SS |
2174 | } |
2175 | } | |
2176 | ||
53c5240f | 2177 | /* Now do whatever is appropriate for LANGUAGE to look |
774b6a14 | 2178 | up static and global variables. */ |
c906108c | 2179 | |
a78a19b1 | 2180 | result = langdef->lookup_symbol_nonlocal (name, block, domain); |
d12307c1 | 2181 | if (result.symbol != NULL) |
cc485e62 | 2182 | { |
b1e678d9 AB |
2183 | symbol_lookup_debug_printf |
2184 | ("found symbol @ %s (using language lookup_symbol_nonlocal)", | |
2185 | host_address_to_string (result.symbol)); | |
d12307c1 | 2186 | return result; |
cc485e62 | 2187 | } |
c906108c | 2188 | |
774b6a14 TT |
2189 | /* Now search all static file-level symbols. Not strictly correct, |
2190 | but more useful than an error. */ | |
41f62f39 | 2191 | |
d12307c1 | 2192 | result = lookup_static_symbol (name, domain); |
b1e678d9 AB |
2193 | symbol_lookup_debug_printf |
2194 | ("found symbol @ %s (using lookup_static_symbol)", | |
2195 | result.symbol != NULL ? host_address_to_string (result.symbol) : "NULL"); | |
d12307c1 | 2196 | return result; |
41f62f39 JK |
2197 | } |
2198 | ||
e4051eeb | 2199 | /* Check to see if the symbol is defined in BLOCK or its superiors. |
89a9d1b1 | 2200 | Don't search STATIC_BLOCK or GLOBAL_BLOCK. */ |
8155455b | 2201 | |
d12307c1 | 2202 | static struct block_symbol |
de63c46b PA |
2203 | lookup_local_symbol (const char *name, |
2204 | symbol_name_match_type match_type, | |
2205 | const struct block *block, | |
ccf41c24 | 2206 | const domain_search_flags domain, |
74016e12 | 2207 | enum language language) |
8155455b | 2208 | { |
78004096 TT |
2209 | if (block == nullptr) |
2210 | return {}; | |
2211 | ||
8155455b | 2212 | struct symbol *sym; |
d24e14a0 | 2213 | const struct block *static_block = block->static_block (); |
3c45e9f9 | 2214 | const char *scope = block->scope (); |
13387711 | 2215 | |
78004096 TT |
2216 | /* Check if it's a global block. */ |
2217 | if (static_block == nullptr) | |
6640a367 | 2218 | return {}; |
e4051eeb | 2219 | |
89a9d1b1 | 2220 | while (block != static_block) |
f61e8913 | 2221 | { |
de63c46b | 2222 | sym = lookup_symbol_in_block (name, match_type, block, domain); |
f61e8913 | 2223 | if (sym != NULL) |
d12307c1 | 2224 | return (struct block_symbol) {sym, block}; |
edb3359d | 2225 | |
f55ee35c | 2226 | if (language == language_cplus || language == language_fortran) |
dda83cd7 SM |
2227 | { |
2228 | struct block_symbol blocksym | |
d12307c1 PMR |
2229 | = cp_lookup_symbol_imports_or_template (scope, name, block, |
2230 | domain); | |
2231 | ||
dda83cd7 SM |
2232 | if (blocksym.symbol != NULL) |
2233 | return blocksym; | |
2234 | } | |
13387711 | 2235 | |
a4dfe747 | 2236 | if (block->function () != NULL && block->inlined_p ()) |
edb3359d | 2237 | break; |
f135fe72 | 2238 | block = block->superblock (); |
f61e8913 DC |
2239 | } |
2240 | ||
3aee438b | 2241 | /* We've reached the end of the function without finding a result. */ |
e4051eeb | 2242 | |
6640a367 | 2243 | return {}; |
f61e8913 DC |
2244 | } |
2245 | ||
cf901d3b | 2246 | /* See symtab.h. */ |
3a40aaa0 | 2247 | |
5f9a71c3 | 2248 | struct symbol * |
de63c46b PA |
2249 | lookup_symbol_in_block (const char *name, symbol_name_match_type match_type, |
2250 | const struct block *block, | |
ccf41c24 | 2251 | const domain_search_flags domain) |
f61e8913 DC |
2252 | { |
2253 | struct symbol *sym; | |
f61e8913 | 2254 | |
b1e678d9 | 2255 | if (symbol_lookup_debug) |
cc485e62 | 2256 | { |
b1e678d9 | 2257 | struct objfile *objfile |
46baa3c6 | 2258 | = block == nullptr ? nullptr : block->objfile (); |
cc485e62 | 2259 | |
b1e678d9 AB |
2260 | symbol_lookup_debug_printf_v |
2261 | ("lookup_symbol_in_block (%s, %s (objfile %s), %s)", | |
2262 | name, host_address_to_string (block), | |
2263 | objfile != nullptr ? objfile_debug_name (objfile) : "NULL", | |
ccf41c24 | 2264 | domain_name (domain).c_str ()); |
cc485e62 DE |
2265 | } |
2266 | ||
e70d6457 TT |
2267 | lookup_name_info lookup_name (name, match_type); |
2268 | sym = block_lookup_symbol (block, lookup_name, domain); | |
f61e8913 | 2269 | if (sym) |
8155455b | 2270 | { |
b1e678d9 AB |
2271 | symbol_lookup_debug_printf_v ("lookup_symbol_in_block (...) = %s", |
2272 | host_address_to_string (sym)); | |
dae58e04 | 2273 | return sym; |
8155455b DC |
2274 | } |
2275 | ||
b1e678d9 | 2276 | symbol_lookup_debug_printf_v ("lookup_symbol_in_block (...) = NULL"); |
8155455b DC |
2277 | return NULL; |
2278 | } | |
2279 | ||
cf901d3b | 2280 | /* See symtab.h. */ |
3a40aaa0 | 2281 | |
d12307c1 | 2282 | struct block_symbol |
efad9b6a | 2283 | lookup_global_symbol_from_objfile (struct objfile *main_objfile, |
442853af | 2284 | enum block_enum block_index, |
3a40aaa0 | 2285 | const char *name, |
ccf41c24 | 2286 | const domain_search_flags domain) |
3a40aaa0 | 2287 | { |
442853af CB |
2288 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2289 | ||
bde09ab7 | 2290 | for (objfile *objfile : main_objfile->separate_debug_objfiles ()) |
15d123c9 | 2291 | { |
d12307c1 | 2292 | struct block_symbol result |
dda83cd7 | 2293 | = lookup_symbol_in_objfile (objfile, block_index, name, domain); |
15d123c9 | 2294 | |
442853af | 2295 | if (result.symbol != nullptr) |
d12307c1 | 2296 | return result; |
15d123c9 | 2297 | } |
56e3f43c | 2298 | |
6640a367 | 2299 | return {}; |
3a40aaa0 UW |
2300 | } |
2301 | ||
19630284 JB |
2302 | /* Check to see if the symbol is defined in one of the OBJFILE's |
2303 | symtabs. BLOCK_INDEX should be either GLOBAL_BLOCK or STATIC_BLOCK, | |
8155455b DC |
2304 | depending on whether or not we want to search global symbols or |
2305 | static symbols. */ | |
2306 | ||
d12307c1 | 2307 | static struct block_symbol |
c32e6a04 CB |
2308 | lookup_symbol_in_objfile_symtabs (struct objfile *objfile, |
2309 | enum block_enum block_index, const char *name, | |
ccf41c24 | 2310 | const domain_search_flags domain) |
19630284 | 2311 | { |
ba715d7f JK |
2312 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2313 | ||
b1e678d9 AB |
2314 | symbol_lookup_debug_printf_v |
2315 | ("lookup_symbol_in_objfile_symtabs (%s, %s, %s, %s)", | |
2316 | objfile_debug_name (objfile), | |
2317 | block_index == GLOBAL_BLOCK ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
ccf41c24 | 2318 | name, domain_name (domain).c_str ()); |
cc485e62 | 2319 | |
de82891c TV |
2320 | struct block_symbol other; |
2321 | other.symbol = NULL; | |
b669c953 | 2322 | for (compunit_symtab *cust : objfile->compunits ()) |
a743abeb | 2323 | { |
43f3e411 DE |
2324 | const struct blockvector *bv; |
2325 | const struct block *block; | |
d12307c1 | 2326 | struct block_symbol result; |
43f3e411 | 2327 | |
af39c5c8 | 2328 | bv = cust->blockvector (); |
63d609de | 2329 | block = bv->block (block_index); |
d12307c1 PMR |
2330 | result.symbol = block_lookup_symbol_primary (block, name, domain); |
2331 | result.block = block; | |
de82891c TV |
2332 | if (result.symbol == NULL) |
2333 | continue; | |
2334 | if (best_symbol (result.symbol, domain)) | |
a743abeb | 2335 | { |
de82891c TV |
2336 | other = result; |
2337 | break; | |
2338 | } | |
911e1e79 | 2339 | if (result.symbol->matches (domain)) |
de82891c TV |
2340 | { |
2341 | struct symbol *better | |
2342 | = better_symbol (other.symbol, result.symbol, domain); | |
2343 | if (better != other.symbol) | |
cc485e62 | 2344 | { |
de82891c TV |
2345 | other.symbol = better; |
2346 | other.block = block; | |
cc485e62 | 2347 | } |
de82891c TV |
2348 | } |
2349 | } | |
d12307c1 | 2350 | |
de82891c TV |
2351 | if (other.symbol != NULL) |
2352 | { | |
b1e678d9 AB |
2353 | symbol_lookup_debug_printf_v |
2354 | ("lookup_symbol_in_objfile_symtabs (...) = %s (block %s)", | |
2355 | host_address_to_string (other.symbol), | |
2356 | host_address_to_string (other.block)); | |
de82891c | 2357 | return other; |
a743abeb | 2358 | } |
19630284 | 2359 | |
b1e678d9 AB |
2360 | symbol_lookup_debug_printf_v |
2361 | ("lookup_symbol_in_objfile_symtabs (...) = NULL"); | |
6640a367 | 2362 | return {}; |
19630284 JB |
2363 | } |
2364 | ||
74016e12 | 2365 | /* Wrapper around lookup_symbol_in_objfile_symtabs for search_symbols. |
422d65e7 | 2366 | Look up LINKAGE_NAME in DOMAIN in the global and static blocks of OBJFILE |
01465b56 DE |
2367 | and all associated separate debug objfiles. |
2368 | ||
2369 | Normally we only look in OBJFILE, and not any separate debug objfiles | |
2370 | because the outer loop will cause them to be searched too. This case is | |
2371 | different. Here we're called from search_symbols where it will only | |
6471e7d2 | 2372 | call us for the objfile that contains a matching minsym. */ |
422d65e7 | 2373 | |
d12307c1 | 2374 | static struct block_symbol |
422d65e7 DE |
2375 | lookup_symbol_in_objfile_from_linkage_name (struct objfile *objfile, |
2376 | const char *linkage_name, | |
ccf41c24 | 2377 | domain_search_flags domain) |
422d65e7 DE |
2378 | { |
2379 | enum language lang = current_language->la_language; | |
e9ad22ee | 2380 | struct objfile *main_objfile; |
422d65e7 | 2381 | |
2f408ecb PA |
2382 | demangle_result_storage storage; |
2383 | const char *modified_name = demangle_for_lookup (linkage_name, lang, storage); | |
2384 | ||
422d65e7 DE |
2385 | if (objfile->separate_debug_objfile_backlink) |
2386 | main_objfile = objfile->separate_debug_objfile_backlink; | |
2387 | else | |
2388 | main_objfile = objfile; | |
2389 | ||
bde09ab7 | 2390 | for (::objfile *cur_objfile : main_objfile->separate_debug_objfiles ()) |
422d65e7 | 2391 | { |
d12307c1 PMR |
2392 | struct block_symbol result; |
2393 | ||
2394 | result = lookup_symbol_in_objfile_symtabs (cur_objfile, GLOBAL_BLOCK, | |
2395 | modified_name, domain); | |
2396 | if (result.symbol == NULL) | |
2397 | result = lookup_symbol_in_objfile_symtabs (cur_objfile, STATIC_BLOCK, | |
2398 | modified_name, domain); | |
2399 | if (result.symbol != NULL) | |
2f408ecb | 2400 | return result; |
422d65e7 DE |
2401 | } |
2402 | ||
6640a367 | 2403 | return {}; |
422d65e7 DE |
2404 | } |
2405 | ||
08c23b0d TT |
2406 | /* A helper function that throws an exception when a symbol was found |
2407 | in a psymtab but not in a symtab. */ | |
2408 | ||
2409 | static void ATTRIBUTE_NORETURN | |
ddbcedf5 | 2410 | error_in_psymtab_expansion (enum block_enum block_index, const char *name, |
43f3e411 | 2411 | struct compunit_symtab *cust) |
08c23b0d TT |
2412 | { |
2413 | error (_("\ | |
2414 | Internal: %s symbol `%s' found in %s psymtab but not in symtab.\n\ | |
2415 | %s may be an inlined function, or may be a template function\n \ | |
2416 | (if a template, try specifying an instantiation: %s<type>)."), | |
f88cb4b6 | 2417 | block_index == GLOBAL_BLOCK ? "global" : "static", |
43f3e411 | 2418 | name, |
0b17a4f7 | 2419 | symtab_to_filename_for_display (cust->primary_filetab ()), |
43f3e411 | 2420 | name, name); |
08c23b0d TT |
2421 | } |
2422 | ||
74016e12 DE |
2423 | /* A helper function for various lookup routines that interfaces with |
2424 | the "quick" symbol table functions. */ | |
8155455b | 2425 | |
d12307c1 | 2426 | static struct block_symbol |
ddbcedf5 CB |
2427 | lookup_symbol_via_quick_fns (struct objfile *objfile, |
2428 | enum block_enum block_index, const char *name, | |
ccf41c24 | 2429 | const domain_search_flags domain) |
8155455b | 2430 | { |
43f3e411 | 2431 | struct compunit_symtab *cust; |
346d1dfe | 2432 | const struct blockvector *bv; |
8155455b | 2433 | const struct block *block; |
d12307c1 | 2434 | struct block_symbol result; |
8155455b | 2435 | |
b1e678d9 AB |
2436 | symbol_lookup_debug_printf_v |
2437 | ("lookup_symbol_via_quick_fns (%s, %s, %s, %s)", | |
2438 | objfile_debug_name (objfile), | |
2439 | block_index == GLOBAL_BLOCK ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
ccf41c24 | 2440 | name, domain_name (domain).c_str ()); |
cc485e62 | 2441 | |
e70d6457 TT |
2442 | lookup_name_info lookup_name (name, symbol_name_match_type::FULL); |
2443 | cust = objfile->lookup_symbol (block_index, lookup_name, domain); | |
43f3e411 | 2444 | if (cust == NULL) |
cc485e62 | 2445 | { |
b1e678d9 AB |
2446 | symbol_lookup_debug_printf_v |
2447 | ("lookup_symbol_via_quick_fns (...) = NULL"); | |
6640a367 | 2448 | return {}; |
cc485e62 | 2449 | } |
8155455b | 2450 | |
af39c5c8 | 2451 | bv = cust->blockvector (); |
63d609de | 2452 | block = bv->block (block_index); |
e70d6457 | 2453 | result.symbol = block_lookup_symbol (block, lookup_name, domain); |
d12307c1 | 2454 | if (result.symbol == NULL) |
43f3e411 | 2455 | error_in_psymtab_expansion (block_index, name, cust); |
cc485e62 | 2456 | |
b1e678d9 AB |
2457 | symbol_lookup_debug_printf_v |
2458 | ("lookup_symbol_via_quick_fns (...) = %s (block %s)", | |
2459 | host_address_to_string (result.symbol), | |
2460 | host_address_to_string (block)); | |
cc485e62 | 2461 | |
d12307c1 PMR |
2462 | result.block = block; |
2463 | return result; | |
8155455b DC |
2464 | } |
2465 | ||
a78a19b1 | 2466 | /* See language.h. */ |
5f9a71c3 | 2467 | |
d12307c1 | 2468 | struct block_symbol |
a78a19b1 AB |
2469 | language_defn::lookup_symbol_nonlocal (const char *name, |
2470 | const struct block *block, | |
ccf41c24 | 2471 | const domain_search_flags domain) const |
5f9a71c3 | 2472 | { |
d12307c1 | 2473 | struct block_symbol result; |
5f9a71c3 | 2474 | |
d9060ba6 DE |
2475 | /* NOTE: dje/2014-10-26: The lookup in all objfiles search could skip |
2476 | the current objfile. Searching the current objfile first is useful | |
2477 | for both matching user expectations as well as performance. */ | |
2478 | ||
d12307c1 PMR |
2479 | result = lookup_symbol_in_static_block (name, block, domain); |
2480 | if (result.symbol != NULL) | |
2481 | return result; | |
5f9a71c3 | 2482 | |
1994afbf DE |
2483 | /* If we didn't find a definition for a builtin type in the static block, |
2484 | search for it now. This is actually the right thing to do and can be | |
2485 | a massive performance win. E.g., when debugging a program with lots of | |
2486 | shared libraries we could search all of them only to find out the | |
2487 | builtin type isn't defined in any of them. This is common for types | |
2488 | like "void". */ | |
ccf41c24 | 2489 | if ((domain & SEARCH_TYPE_DOMAIN) != 0) |
1994afbf DE |
2490 | { |
2491 | struct gdbarch *gdbarch; | |
2492 | ||
2493 | if (block == NULL) | |
99d9c3b9 | 2494 | gdbarch = current_inferior ()->arch (); |
1994afbf | 2495 | else |
7f5937df | 2496 | gdbarch = block->gdbarch (); |
a78a19b1 | 2497 | result.symbol = language_lookup_primitive_type_as_symbol (this, |
d12307c1 PMR |
2498 | gdbarch, name); |
2499 | result.block = NULL; | |
2500 | if (result.symbol != NULL) | |
2501 | return result; | |
1994afbf DE |
2502 | } |
2503 | ||
08724ab7 | 2504 | return lookup_global_symbol (name, block, domain); |
5f9a71c3 DC |
2505 | } |
2506 | ||
cf901d3b | 2507 | /* See symtab.h. */ |
5f9a71c3 | 2508 | |
d12307c1 | 2509 | struct block_symbol |
24d864bb DE |
2510 | lookup_symbol_in_static_block (const char *name, |
2511 | const struct block *block, | |
ccf41c24 | 2512 | const domain_search_flags domain) |
5f9a71c3 | 2513 | { |
78004096 TT |
2514 | if (block == nullptr) |
2515 | return {}; | |
2516 | ||
d24e14a0 | 2517 | const struct block *static_block = block->static_block (); |
cc485e62 | 2518 | struct symbol *sym; |
5f9a71c3 | 2519 | |
cc485e62 | 2520 | if (static_block == NULL) |
6640a367 | 2521 | return {}; |
cc485e62 DE |
2522 | |
2523 | if (symbol_lookup_debug) | |
2524 | { | |
d6bc0792 | 2525 | struct objfile *objfile = (block == nullptr |
46baa3c6 | 2526 | ? nullptr : block->objfile ()); |
cc485e62 | 2527 | |
b1e678d9 AB |
2528 | symbol_lookup_debug_printf |
2529 | ("lookup_symbol_in_static_block (%s, %s (objfile %s), %s)", | |
2530 | name, host_address_to_string (block), | |
2531 | objfile != nullptr ? objfile_debug_name (objfile) : "NULL", | |
ccf41c24 | 2532 | domain_name (domain).c_str ()); |
cc485e62 DE |
2533 | } |
2534 | ||
de63c46b PA |
2535 | sym = lookup_symbol_in_block (name, |
2536 | symbol_name_match_type::FULL, | |
2537 | static_block, domain); | |
b1e678d9 AB |
2538 | symbol_lookup_debug_printf ("lookup_symbol_in_static_block (...) = %s", |
2539 | sym != NULL | |
2540 | ? host_address_to_string (sym) : "NULL"); | |
d12307c1 | 2541 | return (struct block_symbol) {sym, static_block}; |
5f9a71c3 DC |
2542 | } |
2543 | ||
af3768e9 DE |
2544 | /* Perform the standard symbol lookup of NAME in OBJFILE: |
2545 | 1) First search expanded symtabs, and if not found | |
2546 | 2) Search the "quick" symtabs (partial or .gdb_index). | |
2547 | BLOCK_INDEX is one of GLOBAL_BLOCK or STATIC_BLOCK. */ | |
2548 | ||
d12307c1 | 2549 | static struct block_symbol |
c32e6a04 | 2550 | lookup_symbol_in_objfile (struct objfile *objfile, enum block_enum block_index, |
ccf41c24 | 2551 | const char *name, const domain_search_flags domain) |
af3768e9 | 2552 | { |
d12307c1 | 2553 | struct block_symbol result; |
af3768e9 | 2554 | |
c32e6a04 CB |
2555 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2556 | ||
b1e678d9 AB |
2557 | symbol_lookup_debug_printf ("lookup_symbol_in_objfile (%s, %s, %s, %s)", |
2558 | objfile_debug_name (objfile), | |
2559 | block_index == GLOBAL_BLOCK | |
2560 | ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
ccf41c24 | 2561 | name, domain_name (domain).c_str ()); |
cc485e62 | 2562 | |
af3768e9 DE |
2563 | result = lookup_symbol_in_objfile_symtabs (objfile, block_index, |
2564 | name, domain); | |
d12307c1 | 2565 | if (result.symbol != NULL) |
af3768e9 | 2566 | { |
b1e678d9 AB |
2567 | symbol_lookup_debug_printf |
2568 | ("lookup_symbol_in_objfile (...) = %s (in symtabs)", | |
2569 | host_address_to_string (result.symbol)); | |
cc485e62 | 2570 | return result; |
af3768e9 DE |
2571 | } |
2572 | ||
cc485e62 DE |
2573 | result = lookup_symbol_via_quick_fns (objfile, block_index, |
2574 | name, domain); | |
b1e678d9 AB |
2575 | symbol_lookup_debug_printf ("lookup_symbol_in_objfile (...) = %s%s", |
2576 | result.symbol != NULL | |
2577 | ? host_address_to_string (result.symbol) | |
2578 | : "NULL", | |
2579 | result.symbol != NULL ? " (via quick fns)" | |
2580 | : ""); | |
af3768e9 DE |
2581 | return result; |
2582 | } | |
2583 | ||
9aa55206 CB |
2584 | /* This function contains the common code of lookup_{global,static}_symbol. |
2585 | OBJFILE is only used if BLOCK_INDEX is GLOBAL_SCOPE, in which case it is | |
2586 | the objfile to start the lookup in. */ | |
5f9a71c3 | 2587 | |
9aa55206 CB |
2588 | static struct block_symbol |
2589 | lookup_global_or_static_symbol (const char *name, | |
2590 | enum block_enum block_index, | |
2591 | struct objfile *objfile, | |
ccf41c24 | 2592 | const domain_search_flags domain) |
5f9a71c3 | 2593 | { |
f57d2163 | 2594 | struct symbol_cache *cache = get_symbol_cache (current_program_space); |
d12307c1 | 2595 | struct block_symbol result; |
f57d2163 DE |
2596 | struct block_symbol_cache *bsc; |
2597 | struct symbol_cache_slot *slot; | |
b2fb95e0 | 2598 | |
9aa55206 CB |
2599 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2600 | gdb_assert (objfile == nullptr || block_index == GLOBAL_BLOCK); | |
f57d2163 DE |
2601 | |
2602 | /* First see if we can find the symbol in the cache. | |
2603 | This works because we use the current objfile to qualify the lookup. */ | |
9aa55206 | 2604 | result = symbol_cache_lookup (cache, objfile, block_index, name, domain, |
d12307c1 PMR |
2605 | &bsc, &slot); |
2606 | if (result.symbol != NULL) | |
f57d2163 | 2607 | { |
d12307c1 | 2608 | if (SYMBOL_LOOKUP_FAILED_P (result)) |
6640a367 | 2609 | return {}; |
d12307c1 | 2610 | return result; |
f57d2163 DE |
2611 | } |
2612 | ||
626ca2c0 | 2613 | /* Do a global search (of global blocks, heh). */ |
d12307c1 | 2614 | if (result.symbol == NULL) |
6e9cd73e | 2615 | gdbarch_iterate_over_objfiles_in_search_order |
99d9c3b9 | 2616 | (objfile != NULL ? objfile->arch () : current_inferior ()->arch (), |
6e9cd73e SM |
2617 | [&result, block_index, name, domain] (struct objfile *objfile_iter) |
2618 | { | |
2619 | result = lookup_symbol_in_objfile (objfile_iter, block_index, | |
2620 | name, domain); | |
2621 | return result.symbol != nullptr; | |
2622 | }, | |
2623 | objfile); | |
6a3ca067 | 2624 | |
d12307c1 | 2625 | if (result.symbol != NULL) |
ccf41c24 TT |
2626 | symbol_cache_mark_found (bsc, slot, objfile, result.symbol, result.block, |
2627 | domain); | |
f57d2163 DE |
2628 | else |
2629 | symbol_cache_mark_not_found (bsc, slot, objfile, name, domain); | |
2630 | ||
d12307c1 | 2631 | return result; |
5f9a71c3 DC |
2632 | } |
2633 | ||
9aa55206 CB |
2634 | /* See symtab.h. */ |
2635 | ||
2636 | struct block_symbol | |
ccf41c24 | 2637 | lookup_static_symbol (const char *name, const domain_search_flags domain) |
9aa55206 CB |
2638 | { |
2639 | return lookup_global_or_static_symbol (name, STATIC_BLOCK, nullptr, domain); | |
2640 | } | |
2641 | ||
2642 | /* See symtab.h. */ | |
2643 | ||
2644 | struct block_symbol | |
2645 | lookup_global_symbol (const char *name, | |
2646 | const struct block *block, | |
ccf41c24 | 2647 | const domain_search_flags domain) |
9aa55206 | 2648 | { |
d3d32391 AB |
2649 | /* If a block was passed in, we want to search the corresponding |
2650 | global block first. This yields "more expected" behavior, and is | |
2651 | needed to support 'FILENAME'::VARIABLE lookups. */ | |
8f14fd11 | 2652 | const struct block *global_block |
d24e14a0 | 2653 | = block == nullptr ? nullptr : block->global_block (); |
70bc38f5 | 2654 | symbol *sym = NULL; |
d3d32391 AB |
2655 | if (global_block != nullptr) |
2656 | { | |
70bc38f5 TV |
2657 | sym = lookup_symbol_in_block (name, |
2658 | symbol_name_match_type::FULL, | |
2659 | global_block, domain); | |
2660 | if (sym != NULL && best_symbol (sym, domain)) | |
d3d32391 AB |
2661 | return { sym, global_block }; |
2662 | } | |
2663 | ||
d6bc0792 TT |
2664 | struct objfile *objfile = nullptr; |
2665 | if (block != nullptr) | |
2666 | { | |
46baa3c6 | 2667 | objfile = block->objfile (); |
d6bc0792 TT |
2668 | if (objfile->separate_debug_objfile_backlink != nullptr) |
2669 | objfile = objfile->separate_debug_objfile_backlink; | |
2670 | } | |
2671 | ||
70bc38f5 TV |
2672 | block_symbol bs |
2673 | = lookup_global_or_static_symbol (name, GLOBAL_BLOCK, objfile, domain); | |
2674 | if (better_symbol (sym, bs.symbol, domain) == sym) | |
2675 | return { sym, global_block }; | |
2676 | else | |
2677 | return bs; | |
9aa55206 CB |
2678 | } |
2679 | ||
cf901d3b | 2680 | /* See symtab.h. */ |
c906108c | 2681 | |
25f31e18 TT |
2682 | bool |
2683 | symbol::matches (domain_search_flags flags) const | |
2684 | { | |
974b36c2 TT |
2685 | /* C++ has a typedef for every tag, and the types are in the struct |
2686 | domain. */ | |
2687 | if (language () == language_cplus && (flags & SEARCH_TYPE_DOMAIN) != 0) | |
2688 | flags |= SEARCH_STRUCT_DOMAIN; | |
25f31e18 TT |
2689 | |
2690 | return search_flags_matches (flags, m_domain); | |
2691 | } | |
2692 | ||
2693 | /* See symtab.h. */ | |
2694 | ||
ccefe4c4 | 2695 | struct type * |
1ab9eefe | 2696 | lookup_transparent_type (const char *name, domain_search_flags flags) |
c906108c | 2697 | { |
1ab9eefe | 2698 | return current_language->lookup_transparent_type (name, flags); |
ccefe4c4 | 2699 | } |
9af17804 | 2700 | |
ccefe4c4 TT |
2701 | /* A helper for basic_lookup_transparent_type that interfaces with the |
2702 | "quick" symbol table functions. */ | |
357e46e7 | 2703 | |
ccefe4c4 | 2704 | static struct type * |
ddbcedf5 CB |
2705 | basic_lookup_transparent_type_quick (struct objfile *objfile, |
2706 | enum block_enum block_index, | |
1ab9eefe | 2707 | domain_search_flags flags, |
e70d6457 | 2708 | const lookup_name_info &name) |
ccefe4c4 | 2709 | { |
43f3e411 | 2710 | struct compunit_symtab *cust; |
346d1dfe | 2711 | const struct blockvector *bv; |
582942f4 | 2712 | const struct block *block; |
ccefe4c4 | 2713 | struct symbol *sym; |
c906108c | 2714 | |
1ab9eefe | 2715 | cust = objfile->lookup_symbol (block_index, name, flags); |
43f3e411 | 2716 | if (cust == NULL) |
ccefe4c4 | 2717 | return NULL; |
c906108c | 2718 | |
af39c5c8 | 2719 | bv = cust->blockvector (); |
63d609de | 2720 | block = bv->block (block_index); |
b7a92724 | 2721 | |
1ab9eefe | 2722 | sym = block_find_symbol (block, name, flags, nullptr); |
b7a92724 | 2723 | if (sym == nullptr) |
e70d6457 | 2724 | error_in_psymtab_expansion (block_index, name.c_str (), cust); |
5f9c5a63 SM |
2725 | gdb_assert (!TYPE_IS_OPAQUE (sym->type ())); |
2726 | return sym->type (); | |
b2e2f908 | 2727 | } |
08c23b0d | 2728 | |
b2e2f908 DE |
2729 | /* Subroutine of basic_lookup_transparent_type to simplify it. |
2730 | Look up the non-opaque definition of NAME in BLOCK_INDEX of OBJFILE. | |
2731 | BLOCK_INDEX is either GLOBAL_BLOCK or STATIC_BLOCK. */ | |
2732 | ||
2733 | static struct type * | |
ddbcedf5 CB |
2734 | basic_lookup_transparent_type_1 (struct objfile *objfile, |
2735 | enum block_enum block_index, | |
1ab9eefe | 2736 | domain_search_flags flags, |
e70d6457 | 2737 | const lookup_name_info &name) |
b2e2f908 | 2738 | { |
b2e2f908 DE |
2739 | const struct blockvector *bv; |
2740 | const struct block *block; | |
2741 | const struct symbol *sym; | |
2742 | ||
b669c953 | 2743 | for (compunit_symtab *cust : objfile->compunits ()) |
b2e2f908 | 2744 | { |
af39c5c8 | 2745 | bv = cust->blockvector (); |
63d609de | 2746 | block = bv->block (block_index); |
1ab9eefe | 2747 | sym = block_find_symbol (block, name, flags, nullptr); |
b7a92724 | 2748 | if (sym != nullptr) |
b2e2f908 | 2749 | { |
5f9c5a63 SM |
2750 | gdb_assert (!TYPE_IS_OPAQUE (sym->type ())); |
2751 | return sym->type (); | |
b2e2f908 DE |
2752 | } |
2753 | } | |
c906108c | 2754 | |
ccefe4c4 | 2755 | return NULL; |
b368761e | 2756 | } |
c906108c | 2757 | |
b368761e DC |
2758 | /* The standard implementation of lookup_transparent_type. This code |
2759 | was modeled on lookup_symbol -- the parts not relevant to looking | |
2760 | up types were just left out. In particular it's assumed here that | |
cf901d3b | 2761 | types are available in STRUCT_DOMAIN and only in file-static or |
b368761e | 2762 | global blocks. */ |
c906108c SS |
2763 | |
2764 | struct type * | |
1ab9eefe | 2765 | basic_lookup_transparent_type (const char *name, domain_search_flags flags) |
c906108c | 2766 | { |
ccefe4c4 | 2767 | struct type *t; |
c906108c | 2768 | |
e70d6457 TT |
2769 | lookup_name_info lookup_name (name, symbol_name_match_type::FULL); |
2770 | ||
c906108c | 2771 | /* Now search all the global symbols. Do the symtab's first, then |
c378eb4e | 2772 | check the psymtab's. If a psymtab indicates the existence |
c906108c SS |
2773 | of the desired name as a global, then do psymtab-to-symtab |
2774 | conversion on the fly and return the found symbol. */ | |
c5aa993b | 2775 | |
2030c079 | 2776 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 | 2777 | { |
e70d6457 | 2778 | t = basic_lookup_transparent_type_1 (objfile, GLOBAL_BLOCK, |
1ab9eefe | 2779 | flags, lookup_name); |
aed57c53 TT |
2780 | if (t) |
2781 | return t; | |
2782 | } | |
c906108c | 2783 | |
2030c079 | 2784 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 | 2785 | { |
e70d6457 | 2786 | t = basic_lookup_transparent_type_quick (objfile, GLOBAL_BLOCK, |
1ab9eefe | 2787 | flags, lookup_name); |
aed57c53 TT |
2788 | if (t) |
2789 | return t; | |
2790 | } | |
c906108c SS |
2791 | |
2792 | /* Now search the static file-level symbols. | |
2793 | Not strictly correct, but more useful than an error. | |
2794 | Do the symtab's first, then | |
c378eb4e | 2795 | check the psymtab's. If a psymtab indicates the existence |
c906108c | 2796 | of the desired name as a file-level static, then do psymtab-to-symtab |
c378eb4e | 2797 | conversion on the fly and return the found symbol. */ |
c906108c | 2798 | |
2030c079 | 2799 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 | 2800 | { |
e70d6457 | 2801 | t = basic_lookup_transparent_type_1 (objfile, STATIC_BLOCK, |
1ab9eefe | 2802 | flags, lookup_name); |
aed57c53 TT |
2803 | if (t) |
2804 | return t; | |
2805 | } | |
c906108c | 2806 | |
2030c079 | 2807 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 | 2808 | { |
e70d6457 | 2809 | t = basic_lookup_transparent_type_quick (objfile, STATIC_BLOCK, |
1ab9eefe | 2810 | flags, lookup_name); |
aed57c53 TT |
2811 | if (t) |
2812 | return t; | |
2813 | } | |
ccefe4c4 | 2814 | |
c906108c SS |
2815 | return (struct type *) 0; |
2816 | } | |
2817 | ||
6969f124 | 2818 | /* See symtab.h. */ |
f8eba3c6 | 2819 | |
6969f124 | 2820 | bool |
b5ec771e PA |
2821 | iterate_over_symbols (const struct block *block, |
2822 | const lookup_name_info &name, | |
6c015214 | 2823 | const domain_search_flags domain, |
14bc53a8 | 2824 | gdb::function_view<symbol_found_callback_ftype> callback) |
f8eba3c6 | 2825 | { |
a1b29426 | 2826 | for (struct symbol *sym : block_iterator_range (block, &name)) |
4eeaa230 | 2827 | { |
911e1e79 | 2828 | if (sym->matches (domain)) |
f8eba3c6 | 2829 | { |
7e41c8db KS |
2830 | struct block_symbol block_sym = {sym, block}; |
2831 | ||
2832 | if (!callback (&block_sym)) | |
6969f124 | 2833 | return false; |
f8eba3c6 | 2834 | } |
f8eba3c6 | 2835 | } |
6969f124 | 2836 | return true; |
f8eba3c6 TT |
2837 | } |
2838 | ||
6a3dbf1b TT |
2839 | /* See symtab.h. */ |
2840 | ||
2841 | bool | |
2842 | iterate_over_symbols_terminated | |
2843 | (const struct block *block, | |
2844 | const lookup_name_info &name, | |
6c015214 | 2845 | const domain_search_flags domain, |
6a3dbf1b TT |
2846 | gdb::function_view<symbol_found_callback_ftype> callback) |
2847 | { | |
2848 | if (!iterate_over_symbols (block, name, domain, callback)) | |
2849 | return false; | |
2850 | struct block_symbol block_sym = {nullptr, block}; | |
2851 | return callback (&block_sym); | |
2852 | } | |
2853 | ||
43f3e411 DE |
2854 | /* Find the compunit symtab associated with PC and SECTION. |
2855 | This will read in debug info as necessary. */ | |
c906108c | 2856 | |
43f3e411 DE |
2857 | struct compunit_symtab * |
2858 | find_pc_sect_compunit_symtab (CORE_ADDR pc, struct obj_section *section) | |
c906108c | 2859 | { |
43f3e411 | 2860 | struct compunit_symtab *best_cust = NULL; |
61eb46a4 | 2861 | CORE_ADDR best_cust_range = 0; |
77e371c0 | 2862 | struct bound_minimal_symbol msymbol; |
8a48e967 DJ |
2863 | |
2864 | /* If we know that this is not a text address, return failure. This is | |
2865 | necessary because we loop based on the block's high and low code | |
2866 | addresses, which do not include the data ranges, and because | |
2867 | we call find_pc_sect_psymtab which has a similar restriction based | |
2868 | on the partial_symtab's texthigh and textlow. */ | |
77e371c0 | 2869 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); |
1ed9f74e | 2870 | if (msymbol.minsym && msymbol.minsym->data_p ()) |
8a48e967 | 2871 | return NULL; |
c906108c SS |
2872 | |
2873 | /* Search all symtabs for the one whose file contains our address, and which | |
2874 | is the smallest of all the ones containing the address. This is designed | |
2875 | to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000 | |
2876 | and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from | |
2877 | 0x1000-0x4000, but for address 0x2345 we want to return symtab b. | |
2878 | ||
2879 | This happens for native ecoff format, where code from included files | |
c378eb4e | 2880 | gets its own symtab. The symtab for the included file should have |
c906108c SS |
2881 | been read in already via the dependency mechanism. |
2882 | It might be swifter to create several symtabs with the same name | |
2883 | like xcoff does (I'm not sure). | |
2884 | ||
2885 | It also happens for objfiles that have their functions reordered. | |
2886 | For these, the symtab we are looking for is not necessarily read in. */ | |
2887 | ||
2030c079 | 2888 | for (objfile *obj_file : current_program_space->objfiles ()) |
d8aeb77f | 2889 | { |
b669c953 | 2890 | for (compunit_symtab *cust : obj_file->compunits ()) |
d8aeb77f | 2891 | { |
af39c5c8 | 2892 | const struct blockvector *bv = cust->blockvector (); |
63d609de | 2893 | const struct block *global_block = bv->global_block (); |
4b8791e1 SM |
2894 | CORE_ADDR start = global_block->start (); |
2895 | CORE_ADDR end = global_block->end (); | |
61eb46a4 TV |
2896 | bool in_range_p = start <= pc && pc < end; |
2897 | if (!in_range_p) | |
2898 | continue; | |
43f3e411 | 2899 | |
414705d1 | 2900 | if (bv->map () != nullptr) |
1b00ef06 | 2901 | { |
769520b7 | 2902 | if (bv->map ()->find (pc) == nullptr) |
1b00ef06 TV |
2903 | continue; |
2904 | ||
2905 | return cust; | |
2906 | } | |
2907 | ||
61eb46a4 TV |
2908 | CORE_ADDR range = end - start; |
2909 | if (best_cust != nullptr | |
2910 | && range >= best_cust_range) | |
2911 | /* Cust doesn't have a smaller range than best_cust, skip it. */ | |
2912 | continue; | |
2913 | ||
2914 | /* For an objfile that has its functions reordered, | |
2915 | find_pc_psymtab will find the proper partial symbol table | |
2916 | and we simply return its corresponding symtab. */ | |
2917 | /* In order to better support objfiles that contain both | |
2918 | stabs and coff debugging info, we continue on if a psymtab | |
2919 | can't be found. */ | |
100e3935 TT |
2920 | struct compunit_symtab *result |
2921 | = obj_file->find_pc_sect_compunit_symtab (msymbol, pc, | |
2922 | section, 0); | |
2923 | if (result != nullptr) | |
2924 | return result; | |
c906108c | 2925 | |
61eb46a4 | 2926 | if (section != 0) |
d8aeb77f | 2927 | { |
548a89df | 2928 | struct symbol *found_sym = nullptr; |
61eb46a4 | 2929 | |
bd24c5d6 | 2930 | for (int b_index = GLOBAL_BLOCK; |
548a89df | 2931 | b_index <= STATIC_BLOCK && found_sym == nullptr; |
bd24c5d6 | 2932 | ++b_index) |
d8aeb77f | 2933 | { |
63d609de | 2934 | const struct block *b = bv->block (b_index); |
548a89df | 2935 | for (struct symbol *sym : block_iterator_range (b)) |
bd24c5d6 | 2936 | { |
ebbc3a7d | 2937 | if (matching_obj_sections (sym->obj_section (obj_file), |
bd24c5d6 | 2938 | section)) |
548a89df TT |
2939 | { |
2940 | found_sym = sym; | |
2941 | break; | |
2942 | } | |
bd24c5d6 | 2943 | } |
d8aeb77f | 2944 | } |
548a89df | 2945 | if (found_sym == nullptr) |
61eb46a4 | 2946 | continue; /* No symbol in this symtab matches |
d8aeb77f | 2947 | section. */ |
d8aeb77f | 2948 | } |
61eb46a4 TV |
2949 | |
2950 | /* Cust is best found sofar, save it. */ | |
2951 | best_cust = cust; | |
2952 | best_cust_range = range; | |
d8aeb77f TT |
2953 | } |
2954 | } | |
c906108c | 2955 | |
43f3e411 DE |
2956 | if (best_cust != NULL) |
2957 | return best_cust; | |
c906108c | 2958 | |
072cabfe DE |
2959 | /* Not found in symtabs, search the "quick" symtabs (e.g. psymtabs). */ |
2960 | ||
2030c079 | 2961 | for (objfile *objf : current_program_space->objfiles ()) |
aed57c53 | 2962 | { |
4d080b46 TT |
2963 | struct compunit_symtab *result |
2964 | = objf->find_pc_sect_compunit_symtab (msymbol, pc, section, 1); | |
aed57c53 TT |
2965 | if (result != NULL) |
2966 | return result; | |
2967 | } | |
ccefe4c4 TT |
2968 | |
2969 | return NULL; | |
c906108c SS |
2970 | } |
2971 | ||
43f3e411 DE |
2972 | /* Find the compunit symtab associated with PC. |
2973 | This will read in debug info as necessary. | |
2974 | Backward compatibility, no section. */ | |
c906108c | 2975 | |
43f3e411 DE |
2976 | struct compunit_symtab * |
2977 | find_pc_compunit_symtab (CORE_ADDR pc) | |
c906108c | 2978 | { |
43f3e411 | 2979 | return find_pc_sect_compunit_symtab (pc, find_pc_mapped_section (pc)); |
c906108c | 2980 | } |
71a3c369 TT |
2981 | |
2982 | /* See symtab.h. */ | |
2983 | ||
2984 | struct symbol * | |
2985 | find_symbol_at_address (CORE_ADDR address) | |
2986 | { | |
1f2624a3 TT |
2987 | /* A helper function to search a given symtab for a symbol matching |
2988 | ADDR. */ | |
2989 | auto search_symtab = [] (compunit_symtab *symtab, CORE_ADDR addr) -> symbol * | |
aed57c53 | 2990 | { |
af39c5c8 | 2991 | const struct blockvector *bv = symtab->blockvector (); |
71a3c369 | 2992 | |
1f2624a3 | 2993 | for (int i = GLOBAL_BLOCK; i <= STATIC_BLOCK; ++i) |
aed57c53 | 2994 | { |
63d609de | 2995 | const struct block *b = bv->block (i); |
71a3c369 | 2996 | |
548a89df | 2997 | for (struct symbol *sym : block_iterator_range (b)) |
71a3c369 | 2998 | { |
66d7f48f | 2999 | if (sym->aclass () == LOC_STATIC |
4aeddc50 | 3000 | && sym->value_address () == addr) |
1f2624a3 TT |
3001 | return sym; |
3002 | } | |
3003 | } | |
3004 | return nullptr; | |
3005 | }; | |
aed57c53 | 3006 | |
1f2624a3 TT |
3007 | for (objfile *objfile : current_program_space->objfiles ()) |
3008 | { | |
4d080b46 TT |
3009 | /* If this objfile was read with -readnow, then we need to |
3010 | search the symtabs directly. */ | |
3011 | if ((objfile->flags & OBJF_READNOW) != 0) | |
1f2624a3 TT |
3012 | { |
3013 | for (compunit_symtab *symtab : objfile->compunits ()) | |
3014 | { | |
3015 | struct symbol *sym = search_symtab (symtab, address); | |
3016 | if (sym != nullptr) | |
3017 | return sym; | |
3018 | } | |
3019 | } | |
3020 | else | |
3021 | { | |
3022 | struct compunit_symtab *symtab | |
4d080b46 | 3023 | = objfile->find_compunit_symtab_by_address (address); |
1f2624a3 TT |
3024 | if (symtab != NULL) |
3025 | { | |
3026 | struct symbol *sym = search_symtab (symtab, address); | |
3027 | if (sym != nullptr) | |
3028 | return sym; | |
71a3c369 | 3029 | } |
aed57c53 TT |
3030 | } |
3031 | } | |
71a3c369 TT |
3032 | |
3033 | return NULL; | |
3034 | } | |
3035 | ||
c906108c | 3036 | \f |
c5aa993b | 3037 | |
7e73cedf | 3038 | /* Find the source file and line number for a given PC value and SECTION. |
c906108c SS |
3039 | Return a structure containing a symtab pointer, a line number, |
3040 | and a pc range for the entire source line. | |
3041 | The value's .pc field is NOT the specified pc. | |
3042 | NOTCURRENT nonzero means, if specified pc is on a line boundary, | |
3043 | use the line that ends there. Otherwise, in that case, the line | |
3044 | that begins there is used. */ | |
3045 | ||
3046 | /* The big complication here is that a line may start in one file, and end just | |
3047 | before the start of another file. This usually occurs when you #include | |
3048 | code in the middle of a subroutine. To properly find the end of a line's PC | |
3049 | range, we must search all symtabs associated with this compilation unit, and | |
3050 | find the one whose first PC is closer than that of the next line in this | |
3051 | symtab. */ | |
3052 | ||
c906108c | 3053 | struct symtab_and_line |
714835d5 | 3054 | find_pc_sect_line (CORE_ADDR pc, struct obj_section *section, int notcurrent) |
c906108c | 3055 | { |
43f3e411 | 3056 | struct compunit_symtab *cust; |
977a0c16 | 3057 | const linetable *l; |
52f0bd74 | 3058 | int len; |
977a0c16 | 3059 | const linetable_entry *item; |
346d1dfe | 3060 | const struct blockvector *bv; |
7cbd4a93 | 3061 | struct bound_minimal_symbol msymbol; |
c906108c SS |
3062 | |
3063 | /* Info on best line seen so far, and where it starts, and its file. */ | |
3064 | ||
977a0c16 | 3065 | const linetable_entry *best = NULL; |
c906108c SS |
3066 | CORE_ADDR best_end = 0; |
3067 | struct symtab *best_symtab = 0; | |
3068 | ||
3069 | /* Store here the first line number | |
3070 | of a file which contains the line at the smallest pc after PC. | |
3071 | If we don't find a line whose range contains PC, | |
3072 | we will use a line one less than this, | |
3073 | with a range from the start of that file to the first line's pc. */ | |
977a0c16 | 3074 | const linetable_entry *alt = NULL; |
c906108c SS |
3075 | |
3076 | /* Info on best line seen in this file. */ | |
3077 | ||
977a0c16 | 3078 | const linetable_entry *prev; |
c906108c SS |
3079 | |
3080 | /* If this pc is not from the current frame, | |
3081 | it is the address of the end of a call instruction. | |
3082 | Quite likely that is the start of the following statement. | |
3083 | But what we want is the statement containing the instruction. | |
3084 | Fudge the pc to make sure we get that. */ | |
3085 | ||
b77b1eb7 JB |
3086 | /* It's tempting to assume that, if we can't find debugging info for |
3087 | any function enclosing PC, that we shouldn't search for line | |
3088 | number info, either. However, GAS can emit line number info for | |
3089 | assembly files --- very helpful when debugging hand-written | |
3090 | assembly code. In such a case, we'd have no debug info for the | |
3091 | function, but we would have line info. */ | |
648f4f79 | 3092 | |
c906108c SS |
3093 | if (notcurrent) |
3094 | pc -= 1; | |
3095 | ||
c5aa993b | 3096 | /* elz: added this because this function returned the wrong |
c906108c | 3097 | information if the pc belongs to a stub (import/export) |
c378eb4e | 3098 | to call a shlib function. This stub would be anywhere between |
9af17804 | 3099 | two functions in the target, and the line info was erroneously |
c378eb4e MS |
3100 | taken to be the one of the line before the pc. */ |
3101 | ||
c906108c | 3102 | /* RT: Further explanation: |
c5aa993b | 3103 | |
c906108c SS |
3104 | * We have stubs (trampolines) inserted between procedures. |
3105 | * | |
3106 | * Example: "shr1" exists in a shared library, and a "shr1" stub also | |
3107 | * exists in the main image. | |
3108 | * | |
3109 | * In the minimal symbol table, we have a bunch of symbols | |
c378eb4e | 3110 | * sorted by start address. The stubs are marked as "trampoline", |
c906108c SS |
3111 | * the others appear as text. E.g.: |
3112 | * | |
9af17804 | 3113 | * Minimal symbol table for main image |
c906108c SS |
3114 | * main: code for main (text symbol) |
3115 | * shr1: stub (trampoline symbol) | |
3116 | * foo: code for foo (text symbol) | |
3117 | * ... | |
3118 | * Minimal symbol table for "shr1" image: | |
3119 | * ... | |
3120 | * shr1: code for shr1 (text symbol) | |
3121 | * ... | |
3122 | * | |
3123 | * So the code below is trying to detect if we are in the stub | |
3124 | * ("shr1" stub), and if so, find the real code ("shr1" trampoline), | |
3125 | * and if found, do the symbolization from the real-code address | |
3126 | * rather than the stub address. | |
3127 | * | |
3128 | * Assumptions being made about the minimal symbol table: | |
3129 | * 1. lookup_minimal_symbol_by_pc() will return a trampoline only | |
c378eb4e | 3130 | * if we're really in the trampoline.s If we're beyond it (say |
9af17804 | 3131 | * we're in "foo" in the above example), it'll have a closer |
c906108c SS |
3132 | * symbol (the "foo" text symbol for example) and will not |
3133 | * return the trampoline. | |
3134 | * 2. lookup_minimal_symbol_text() will find a real text symbol | |
3135 | * corresponding to the trampoline, and whose address will | |
c378eb4e | 3136 | * be different than the trampoline address. I put in a sanity |
c906108c SS |
3137 | * check for the address being the same, to avoid an |
3138 | * infinite recursion. | |
3139 | */ | |
c5aa993b | 3140 | msymbol = lookup_minimal_symbol_by_pc (pc); |
7cbd4a93 | 3141 | if (msymbol.minsym != NULL) |
60f62e2b | 3142 | if (msymbol.minsym->type () == mst_solib_trampoline) |
c5aa993b | 3143 | { |
77e371c0 | 3144 | struct bound_minimal_symbol mfunsym |
c9d95fa3 | 3145 | = lookup_minimal_symbol_text (msymbol.minsym->linkage_name (), |
77e371c0 TT |
3146 | NULL); |
3147 | ||
3148 | if (mfunsym.minsym == NULL) | |
c5aa993b JM |
3149 | /* I eliminated this warning since it is coming out |
3150 | * in the following situation: | |
3151 | * gdb shmain // test program with shared libraries | |
3152 | * (gdb) break shr1 // function in shared lib | |
3153 | * Warning: In stub for ... | |
9af17804 | 3154 | * In the above situation, the shared lib is not loaded yet, |
c5aa993b JM |
3155 | * so of course we can't find the real func/line info, |
3156 | * but the "break" still works, and the warning is annoying. | |
c378eb4e | 3157 | * So I commented out the warning. RT */ |
3e43a32a | 3158 | /* warning ("In stub for %s; unable to find real function/line info", |
987012b8 | 3159 | msymbol->linkage_name ()); */ |
c378eb4e | 3160 | ; |
c5aa993b | 3161 | /* fall through */ |
4aeddc50 SM |
3162 | else if (mfunsym.value_address () |
3163 | == msymbol.value_address ()) | |
c5aa993b | 3164 | /* Avoid infinite recursion */ |
c378eb4e | 3165 | /* See above comment about why warning is commented out. */ |
3e43a32a | 3166 | /* warning ("In stub for %s; unable to find real function/line info", |
987012b8 | 3167 | msymbol->linkage_name ()); */ |
c378eb4e | 3168 | ; |
c5aa993b JM |
3169 | /* fall through */ |
3170 | else | |
dd69bf7a KB |
3171 | { |
3172 | /* Detect an obvious case of infinite recursion. If this | |
3173 | should occur, we'd like to know about it, so error out, | |
3174 | fatally. */ | |
4aeddc50 | 3175 | if (mfunsym.value_address () == pc) |
f34652de | 3176 | internal_error (_("Infinite recursion detected in find_pc_sect_line;" |
dd69bf7a KB |
3177 | "please file a bug report")); |
3178 | ||
4aeddc50 | 3179 | return find_pc_line (mfunsym.value_address (), 0); |
dd69bf7a | 3180 | } |
c5aa993b | 3181 | } |
c906108c | 3182 | |
51abb421 PA |
3183 | symtab_and_line val; |
3184 | val.pspace = current_program_space; | |
c906108c | 3185 | |
43f3e411 DE |
3186 | cust = find_pc_sect_compunit_symtab (pc, section); |
3187 | if (cust == NULL) | |
c906108c | 3188 | { |
c378eb4e | 3189 | /* If no symbol information, return previous pc. */ |
c906108c SS |
3190 | if (notcurrent) |
3191 | pc++; | |
3192 | val.pc = pc; | |
3193 | return val; | |
3194 | } | |
3195 | ||
af39c5c8 | 3196 | bv = cust->blockvector (); |
1acc9dca | 3197 | struct objfile *objfile = cust->objfile (); |
c906108c SS |
3198 | |
3199 | /* Look at all the symtabs that share this blockvector. | |
3200 | They all have the same apriori range, that we found was right; | |
3201 | but they have different line tables. */ | |
3202 | ||
102cc235 | 3203 | for (symtab *iter_s : cust->filetabs ()) |
c906108c SS |
3204 | { |
3205 | /* Find the best line in this symtab. */ | |
5b607461 | 3206 | l = iter_s->linetable (); |
c906108c | 3207 | if (!l) |
c5aa993b | 3208 | continue; |
c906108c SS |
3209 | len = l->nitems; |
3210 | if (len <= 0) | |
3211 | { | |
3212 | /* I think len can be zero if the symtab lacks line numbers | |
3213 | (e.g. gcc -g1). (Either that or the LINETABLE is NULL; | |
3214 | I'm not sure which, and maybe it depends on the symbol | |
3215 | reader). */ | |
3216 | continue; | |
3217 | } | |
3218 | ||
3219 | prev = NULL; | |
c378eb4e | 3220 | item = l->item; /* Get first line info. */ |
c906108c SS |
3221 | |
3222 | /* Is this file's first line closer than the first lines of other files? | |
dda83cd7 | 3223 | If so, record this file, and its first line, as best alternate. */ |
1acc9dca | 3224 | if (item->pc (objfile) > pc |
0434c3ef | 3225 | && (!alt || item->unrelocated_pc () < alt->unrelocated_pc ())) |
c656bca5 | 3226 | alt = item; |
c906108c | 3227 | |
48e0f38c TT |
3228 | auto pc_compare = [] (const unrelocated_addr &comp_pc, |
3229 | const struct linetable_entry & lhs) | |
7cbe16e9 | 3230 | { |
0434c3ef | 3231 | return comp_pc < lhs.unrelocated_pc (); |
7cbe16e9 | 3232 | }; |
c906108c | 3233 | |
977a0c16 TT |
3234 | const linetable_entry *first = item; |
3235 | const linetable_entry *last = item + len; | |
48e0f38c TT |
3236 | item = (std::upper_bound |
3237 | (first, last, | |
3238 | unrelocated_addr (pc - objfile->text_section_offset ()), | |
3239 | pc_compare)); | |
7cbe16e9 | 3240 | if (item != first) |
aaba0d3a GL |
3241 | { |
3242 | prev = item - 1; /* Found a matching item. */ | |
3243 | /* At this point, prev is a line whose address is <= pc. However, we | |
3244 | don't know if ITEM is pointing to the same statement or not. */ | |
3245 | while (item != last && prev->line == item->line && !item->is_stmt) | |
3246 | item++; | |
3247 | } | |
c906108c SS |
3248 | |
3249 | /* At this point, prev points at the line whose start addr is <= pc, and | |
aaba0d3a | 3250 | item points at the next statement. If we ran off the end of the linetable |
dda83cd7 SM |
3251 | (pc >= start of the last line), then prev == item. If pc < start of |
3252 | the first line, prev will not be set. */ | |
c906108c SS |
3253 | |
3254 | /* Is this file's best line closer than the best in the other files? | |
dda83cd7 SM |
3255 | If so, record this file, and its best line, as best so far. Don't |
3256 | save prev if it represents the end of a function (i.e. line number | |
3257 | 0) instead of a real line. */ | |
c906108c | 3258 | |
0434c3ef TT |
3259 | if (prev && prev->line |
3260 | && (!best || prev->unrelocated_pc () > best->unrelocated_pc ())) | |
c906108c SS |
3261 | { |
3262 | best = prev; | |
43f3e411 | 3263 | best_symtab = iter_s; |
25d53da1 | 3264 | |
8c95582d AB |
3265 | /* If during the binary search we land on a non-statement entry, |
3266 | scan backward through entries at the same address to see if | |
3267 | there is an entry marked as is-statement. In theory this | |
3268 | duplication should have been removed from the line table | |
3269 | during construction, this is just a double check. If the line | |
3270 | table has had the duplication removed then this should be | |
3271 | pretty cheap. */ | |
3272 | if (!best->is_stmt) | |
3273 | { | |
977a0c16 | 3274 | const linetable_entry *tmp = best; |
0434c3ef TT |
3275 | while (tmp > first |
3276 | && (tmp - 1)->unrelocated_pc () == tmp->unrelocated_pc () | |
8c95582d AB |
3277 | && (tmp - 1)->line != 0 && !tmp->is_stmt) |
3278 | --tmp; | |
3279 | if (tmp->is_stmt) | |
3280 | best = tmp; | |
3281 | } | |
3282 | ||
25d53da1 | 3283 | /* Discard BEST_END if it's before the PC of the current BEST. */ |
1acc9dca | 3284 | if (best_end <= best->pc (objfile)) |
25d53da1 | 3285 | best_end = 0; |
c906108c | 3286 | } |
25d53da1 KB |
3287 | |
3288 | /* If another line (denoted by ITEM) is in the linetable and its | |
7cbe16e9 | 3289 | PC is after BEST's PC, but before the current BEST_END, then |
25d53da1 | 3290 | use ITEM's PC as the new best_end. */ |
0434c3ef TT |
3291 | if (best && item < last |
3292 | && item->unrelocated_pc () > best->unrelocated_pc () | |
1acc9dca TT |
3293 | && (best_end == 0 || best_end > item->pc (objfile))) |
3294 | best_end = item->pc (objfile); | |
c906108c SS |
3295 | } |
3296 | ||
3297 | if (!best_symtab) | |
3298 | { | |
e86e87f7 DJ |
3299 | /* If we didn't find any line number info, just return zeros. |
3300 | We used to return alt->line - 1 here, but that could be | |
3301 | anywhere; if we don't have line number info for this PC, | |
3302 | don't make some up. */ | |
3303 | val.pc = pc; | |
c906108c | 3304 | } |
e8717518 FF |
3305 | else if (best->line == 0) |
3306 | { | |
3307 | /* If our best fit is in a range of PC's for which no line | |
3308 | number info is available (line number is zero) then we didn't | |
c378eb4e | 3309 | find any valid line information. */ |
e8717518 FF |
3310 | val.pc = pc; |
3311 | } | |
c906108c SS |
3312 | else |
3313 | { | |
8c95582d | 3314 | val.is_stmt = best->is_stmt; |
c906108c SS |
3315 | val.symtab = best_symtab; |
3316 | val.line = best->line; | |
1acc9dca TT |
3317 | val.pc = best->pc (objfile); |
3318 | if (best_end && (!alt || best_end < alt->pc (objfile))) | |
c906108c SS |
3319 | val.end = best_end; |
3320 | else if (alt) | |
1acc9dca | 3321 | val.end = alt->pc (objfile); |
c906108c | 3322 | else |
63d609de | 3323 | val.end = bv->global_block ()->end (); |
c906108c SS |
3324 | } |
3325 | val.section = section; | |
3326 | return val; | |
3327 | } | |
3328 | ||
c378eb4e | 3329 | /* Backward compatibility (no section). */ |
c906108c SS |
3330 | |
3331 | struct symtab_and_line | |
fba45db2 | 3332 | find_pc_line (CORE_ADDR pc, int notcurrent) |
c906108c | 3333 | { |
714835d5 | 3334 | struct obj_section *section; |
c906108c SS |
3335 | |
3336 | section = find_pc_overlay (pc); | |
31a8f60f AB |
3337 | if (!pc_in_unmapped_range (pc, section)) |
3338 | return find_pc_sect_line (pc, section, notcurrent); | |
3339 | ||
3340 | /* If the original PC was an unmapped address then we translate this to a | |
3341 | mapped address in order to lookup the sal. However, as the user | |
3342 | passed us an unmapped address it makes more sense to return a result | |
3343 | that has the pc and end fields translated to unmapped addresses. */ | |
3344 | pc = overlay_mapped_address (pc, section); | |
3345 | symtab_and_line sal = find_pc_sect_line (pc, section, notcurrent); | |
3346 | sal.pc = overlay_unmapped_address (sal.pc, section); | |
3347 | sal.end = overlay_unmapped_address (sal.end, section); | |
3348 | return sal; | |
c906108c | 3349 | } |
34248c3a | 3350 | |
fe6356de CL |
3351 | /* Compare two symtab_and_line entries. Return true if both have |
3352 | the same line number and the same symtab pointer. That means we | |
3353 | are dealing with two entries from the same line and from the same | |
3354 | source file. | |
3355 | ||
3356 | Return false otherwise. */ | |
3357 | ||
3358 | static bool | |
3359 | sal_line_symtab_matches_p (const symtab_and_line &sal1, | |
3360 | const symtab_and_line &sal2) | |
3361 | { | |
3362 | return sal1.line == sal2.line && sal1.symtab == sal2.symtab; | |
3363 | } | |
3364 | ||
3365 | /* See symtah.h. */ | |
3366 | ||
3367 | std::optional<CORE_ADDR> | |
3368 | find_line_range_start (CORE_ADDR pc) | |
3369 | { | |
3370 | struct symtab_and_line current_sal = find_pc_line (pc, 0); | |
3371 | ||
3372 | if (current_sal.line == 0) | |
3373 | return {}; | |
3374 | ||
3375 | struct symtab_and_line prev_sal = find_pc_line (current_sal.pc - 1, 0); | |
3376 | ||
3377 | /* If the previous entry is for a different line, that means we are already | |
3378 | at the entry with the start PC for this line. */ | |
3379 | if (!sal_line_symtab_matches_p (prev_sal, current_sal)) | |
3380 | return current_sal.pc; | |
3381 | ||
3382 | /* Otherwise, keep looking for entries for the same line but with | |
3383 | smaller PC's. */ | |
3384 | bool done = false; | |
3385 | CORE_ADDR prev_pc; | |
3386 | while (!done) | |
3387 | { | |
3388 | prev_pc = prev_sal.pc; | |
3389 | ||
3390 | prev_sal = find_pc_line (prev_pc - 1, 0); | |
3391 | ||
3392 | /* Did we notice a line change? If so, we are done searching. */ | |
3393 | if (!sal_line_symtab_matches_p (prev_sal, current_sal)) | |
3394 | done = true; | |
3395 | } | |
3396 | ||
3397 | return prev_pc; | |
3398 | } | |
3399 | ||
34248c3a DE |
3400 | /* See symtab.h. */ |
3401 | ||
3402 | struct symtab * | |
3403 | find_pc_line_symtab (CORE_ADDR pc) | |
3404 | { | |
3405 | struct symtab_and_line sal; | |
3406 | ||
3407 | /* This always passes zero for NOTCURRENT to find_pc_line. | |
3408 | There are currently no callers that ever pass non-zero. */ | |
3409 | sal = find_pc_line (pc, 0); | |
3410 | return sal.symtab; | |
3411 | } | |
c906108c | 3412 | \f |
c906108c SS |
3413 | /* Find line number LINE in any symtab whose name is the same as |
3414 | SYMTAB. | |
3415 | ||
3416 | If found, return the symtab that contains the linetable in which it was | |
3417 | found, set *INDEX to the index in the linetable of the best entry | |
ececd218 | 3418 | found, and set *EXACT_MATCH to true if the value returned is an |
c906108c SS |
3419 | exact match. |
3420 | ||
3421 | If not found, return NULL. */ | |
3422 | ||
50641945 | 3423 | struct symtab * |
5accd1a0 | 3424 | find_line_symtab (struct symtab *sym_tab, int line, |
ececd218 | 3425 | int *index, bool *exact_match) |
c906108c | 3426 | { |
6f43c46f | 3427 | int exact = 0; /* Initialized here to avoid a compiler warning. */ |
c906108c SS |
3428 | |
3429 | /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE | |
3430 | so far seen. */ | |
3431 | ||
3432 | int best_index; | |
977a0c16 | 3433 | const struct linetable *best_linetable; |
c906108c SS |
3434 | struct symtab *best_symtab; |
3435 | ||
3436 | /* First try looking it up in the given symtab. */ | |
5b607461 | 3437 | best_linetable = sym_tab->linetable (); |
5accd1a0 | 3438 | best_symtab = sym_tab; |
f8eba3c6 | 3439 | best_index = find_line_common (best_linetable, line, &exact, 0); |
c906108c SS |
3440 | if (best_index < 0 || !exact) |
3441 | { | |
3442 | /* Didn't find an exact match. So we better keep looking for | |
dda83cd7 SM |
3443 | another symtab with the same name. In the case of xcoff, |
3444 | multiple csects for one source file (produced by IBM's FORTRAN | |
3445 | compiler) produce multiple symtabs (this is unavoidable | |
3446 | assuming csects can be at arbitrary places in memory and that | |
3447 | the GLOBAL_BLOCK of a symtab has a begin and end address). */ | |
c906108c SS |
3448 | |
3449 | /* BEST is the smallest linenumber > LINE so far seen, | |
dda83cd7 SM |
3450 | or 0 if none has been seen so far. |
3451 | BEST_INDEX and BEST_LINETABLE identify the item for it. */ | |
c906108c SS |
3452 | int best; |
3453 | ||
c906108c SS |
3454 | if (best_index >= 0) |
3455 | best = best_linetable->item[best_index].line; | |
3456 | else | |
3457 | best = 0; | |
3458 | ||
2030c079 | 3459 | for (objfile *objfile : current_program_space->objfiles ()) |
4d080b46 | 3460 | objfile->expand_symtabs_with_fullname (symtab_to_fullname (sym_tab)); |
51432cca | 3461 | |
2030c079 | 3462 | for (objfile *objfile : current_program_space->objfiles ()) |
8b31193a | 3463 | { |
b669c953 | 3464 | for (compunit_symtab *cu : objfile->compunits ()) |
8b31193a | 3465 | { |
102cc235 | 3466 | for (symtab *s : cu->filetabs ()) |
8b31193a | 3467 | { |
977a0c16 | 3468 | const struct linetable *l; |
8b31193a TT |
3469 | int ind; |
3470 | ||
3471 | if (FILENAME_CMP (sym_tab->filename, s->filename) != 0) | |
3472 | continue; | |
3473 | if (FILENAME_CMP (symtab_to_fullname (sym_tab), | |
3474 | symtab_to_fullname (s)) != 0) | |
3475 | continue; | |
5b607461 | 3476 | l = s->linetable (); |
8b31193a TT |
3477 | ind = find_line_common (l, line, &exact, 0); |
3478 | if (ind >= 0) | |
3479 | { | |
3480 | if (exact) | |
3481 | { | |
3482 | best_index = ind; | |
3483 | best_linetable = l; | |
3484 | best_symtab = s; | |
3485 | goto done; | |
3486 | } | |
3487 | if (best == 0 || l->item[ind].line < best) | |
3488 | { | |
3489 | best = l->item[ind].line; | |
3490 | best_index = ind; | |
3491 | best_linetable = l; | |
3492 | best_symtab = s; | |
3493 | } | |
3494 | } | |
3495 | } | |
3496 | } | |
3497 | } | |
c906108c | 3498 | } |
c5aa993b | 3499 | done: |
c906108c SS |
3500 | if (best_index < 0) |
3501 | return NULL; | |
3502 | ||
3503 | if (index) | |
3504 | *index = best_index; | |
3505 | if (exact_match) | |
ececd218 | 3506 | *exact_match = (exact != 0); |
c906108c SS |
3507 | |
3508 | return best_symtab; | |
3509 | } | |
f8eba3c6 TT |
3510 | |
3511 | /* Given SYMTAB, returns all the PCs function in the symtab that | |
67d89901 TT |
3512 | exactly match LINE. Returns an empty vector if there are no exact |
3513 | matches, but updates BEST_ITEM in this case. */ | |
f8eba3c6 | 3514 | |
67d89901 | 3515 | std::vector<CORE_ADDR> |
f8eba3c6 | 3516 | find_pcs_for_symtab_line (struct symtab *symtab, int line, |
977a0c16 | 3517 | const linetable_entry **best_item) |
f8eba3c6 | 3518 | { |
c656bca5 | 3519 | int start = 0; |
67d89901 | 3520 | std::vector<CORE_ADDR> result; |
1acc9dca | 3521 | struct objfile *objfile = symtab->compunit ()->objfile (); |
f8eba3c6 TT |
3522 | |
3523 | /* First, collect all the PCs that are at this line. */ | |
3524 | while (1) | |
3525 | { | |
3526 | int was_exact; | |
3527 | int idx; | |
3528 | ||
5b607461 | 3529 | idx = find_line_common (symtab->linetable (), line, &was_exact, |
8435453b | 3530 | start); |
f8eba3c6 TT |
3531 | if (idx < 0) |
3532 | break; | |
3533 | ||
3534 | if (!was_exact) | |
3535 | { | |
977a0c16 | 3536 | const linetable_entry *item = &symtab->linetable ()->item[idx]; |
f8eba3c6 | 3537 | |
8c95582d AB |
3538 | if (*best_item == NULL |
3539 | || (item->line < (*best_item)->line && item->is_stmt)) | |
f8eba3c6 TT |
3540 | *best_item = item; |
3541 | ||
3542 | break; | |
3543 | } | |
3544 | ||
1acc9dca | 3545 | result.push_back (symtab->linetable ()->item[idx].pc (objfile)); |
f8eba3c6 TT |
3546 | start = idx + 1; |
3547 | } | |
3548 | ||
3549 | return result; | |
3550 | } | |
3551 | ||
c906108c SS |
3552 | \f |
3553 | /* Set the PC value for a given source file and line number and return true. | |
ececd218 | 3554 | Returns false for invalid line number (and sets the PC to 0). |
c906108c SS |
3555 | The source file is specified with a struct symtab. */ |
3556 | ||
ececd218 | 3557 | bool |
fba45db2 | 3558 | find_line_pc (struct symtab *symtab, int line, CORE_ADDR *pc) |
c906108c | 3559 | { |
977a0c16 | 3560 | const struct linetable *l; |
c906108c SS |
3561 | int ind; |
3562 | ||
3563 | *pc = 0; | |
3564 | if (symtab == 0) | |
ececd218 | 3565 | return false; |
c906108c SS |
3566 | |
3567 | symtab = find_line_symtab (symtab, line, &ind, NULL); | |
3568 | if (symtab != NULL) | |
3569 | { | |
5b607461 | 3570 | l = symtab->linetable (); |
1acc9dca | 3571 | *pc = l->item[ind].pc (symtab->compunit ()->objfile ()); |
ececd218 | 3572 | return true; |
c906108c SS |
3573 | } |
3574 | else | |
ececd218 | 3575 | return false; |
c906108c SS |
3576 | } |
3577 | ||
3578 | /* Find the range of pc values in a line. | |
3579 | Store the starting pc of the line into *STARTPTR | |
3580 | and the ending pc (start of next line) into *ENDPTR. | |
ececd218 CB |
3581 | Returns true to indicate success. |
3582 | Returns false if could not find the specified line. */ | |
c906108c | 3583 | |
ececd218 | 3584 | bool |
fba45db2 KB |
3585 | find_line_pc_range (struct symtab_and_line sal, CORE_ADDR *startptr, |
3586 | CORE_ADDR *endptr) | |
c906108c SS |
3587 | { |
3588 | CORE_ADDR startaddr; | |
3589 | struct symtab_and_line found_sal; | |
3590 | ||
3591 | startaddr = sal.pc; | |
c5aa993b | 3592 | if (startaddr == 0 && !find_line_pc (sal.symtab, sal.line, &startaddr)) |
ececd218 | 3593 | return false; |
c906108c SS |
3594 | |
3595 | /* This whole function is based on address. For example, if line 10 has | |
3596 | two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then | |
3597 | "info line *0x123" should say the line goes from 0x100 to 0x200 | |
3598 | and "info line *0x355" should say the line goes from 0x300 to 0x400. | |
3599 | This also insures that we never give a range like "starts at 0x134 | |
3600 | and ends at 0x12c". */ | |
3601 | ||
3602 | found_sal = find_pc_sect_line (startaddr, sal.section, 0); | |
3603 | if (found_sal.line != sal.line) | |
3604 | { | |
3605 | /* The specified line (sal) has zero bytes. */ | |
3606 | *startptr = found_sal.pc; | |
3607 | *endptr = found_sal.pc; | |
3608 | } | |
3609 | else | |
3610 | { | |
3611 | *startptr = found_sal.pc; | |
3612 | *endptr = found_sal.end; | |
3613 | } | |
ececd218 | 3614 | return true; |
c906108c SS |
3615 | } |
3616 | ||
3617 | /* Given a line table and a line number, return the index into the line | |
3618 | table for the pc of the nearest line whose number is >= the specified one. | |
3619 | Return -1 if none is found. The value is >= 0 if it is an index. | |
f8eba3c6 | 3620 | START is the index at which to start searching the line table. |
c906108c SS |
3621 | |
3622 | Set *EXACT_MATCH nonzero if the value returned is an exact match. */ | |
3623 | ||
3624 | static int | |
977a0c16 | 3625 | find_line_common (const linetable *l, int lineno, |
f8eba3c6 | 3626 | int *exact_match, int start) |
c906108c | 3627 | { |
52f0bd74 AC |
3628 | int i; |
3629 | int len; | |
c906108c SS |
3630 | |
3631 | /* BEST is the smallest linenumber > LINENO so far seen, | |
3632 | or 0 if none has been seen so far. | |
3633 | BEST_INDEX identifies the item for it. */ | |
3634 | ||
3635 | int best_index = -1; | |
3636 | int best = 0; | |
3637 | ||
b7589f7d DJ |
3638 | *exact_match = 0; |
3639 | ||
c906108c SS |
3640 | if (lineno <= 0) |
3641 | return -1; | |
3642 | if (l == 0) | |
3643 | return -1; | |
3644 | ||
3645 | len = l->nitems; | |
f8eba3c6 | 3646 | for (i = start; i < len; i++) |
c906108c | 3647 | { |
977a0c16 | 3648 | const linetable_entry *item = &(l->item[i]); |
c906108c | 3649 | |
8c95582d AB |
3650 | /* Ignore non-statements. */ |
3651 | if (!item->is_stmt) | |
3652 | continue; | |
3653 | ||
c906108c SS |
3654 | if (item->line == lineno) |
3655 | { | |
3656 | /* Return the first (lowest address) entry which matches. */ | |
3657 | *exact_match = 1; | |
3658 | return i; | |
3659 | } | |
3660 | ||
3661 | if (item->line > lineno && (best == 0 || item->line < best)) | |
3662 | { | |
3663 | best = item->line; | |
3664 | best_index = i; | |
3665 | } | |
3666 | } | |
3667 | ||
3668 | /* If we got here, we didn't get an exact match. */ | |
c906108c SS |
3669 | return best_index; |
3670 | } | |
3671 | ||
ececd218 | 3672 | bool |
fba45db2 | 3673 | find_pc_line_pc_range (CORE_ADDR pc, CORE_ADDR *startptr, CORE_ADDR *endptr) |
c906108c SS |
3674 | { |
3675 | struct symtab_and_line sal; | |
433759f7 | 3676 | |
c906108c SS |
3677 | sal = find_pc_line (pc, 0); |
3678 | *startptr = sal.pc; | |
3679 | *endptr = sal.end; | |
3680 | return sal.symtab != 0; | |
3681 | } | |
3682 | ||
cd2bb709 PA |
3683 | /* Helper for find_function_start_sal. Does most of the work, except |
3684 | setting the sal's symbol. */ | |
aab2f208 | 3685 | |
cd2bb709 PA |
3686 | static symtab_and_line |
3687 | find_function_start_sal_1 (CORE_ADDR func_addr, obj_section *section, | |
3688 | bool funfirstline) | |
aab2f208 | 3689 | { |
42ddae10 | 3690 | symtab_and_line sal = find_pc_sect_line (func_addr, section, 0); |
aab2f208 | 3691 | |
6e22494e | 3692 | if (funfirstline && sal.symtab != NULL |
c6159652 | 3693 | && (sal.symtab->compunit ()->locations_valid () |
1ee2e9f9 | 3694 | || sal.symtab->language () == language_asm)) |
6e22494e | 3695 | { |
3c86fae3 | 3696 | struct gdbarch *gdbarch = sal.symtab->compunit ()->objfile ()->arch (); |
141c5cc4 | 3697 | |
42ddae10 | 3698 | sal.pc = func_addr; |
141c5cc4 JK |
3699 | if (gdbarch_skip_entrypoint_p (gdbarch)) |
3700 | sal.pc = gdbarch_skip_entrypoint (gdbarch, sal.pc); | |
6e22494e JK |
3701 | return sal; |
3702 | } | |
3703 | ||
aab2f208 | 3704 | /* We always should have a line for the function start address. |
42ddae10 | 3705 | If we don't, something is odd. Create a plain SAL referring |
aab2f208 DE |
3706 | just the PC and hope that skip_prologue_sal (if requested) |
3707 | can find a line number for after the prologue. */ | |
42ddae10 | 3708 | if (sal.pc < func_addr) |
aab2f208 | 3709 | { |
51abb421 | 3710 | sal = {}; |
aab2f208 | 3711 | sal.pspace = current_program_space; |
42ddae10 | 3712 | sal.pc = func_addr; |
08be3fe3 | 3713 | sal.section = section; |
aab2f208 DE |
3714 | } |
3715 | ||
3716 | if (funfirstline) | |
3717 | skip_prologue_sal (&sal); | |
3718 | ||
3719 | return sal; | |
3720 | } | |
3721 | ||
42ddae10 PA |
3722 | /* See symtab.h. */ |
3723 | ||
cd2bb709 PA |
3724 | symtab_and_line |
3725 | find_function_start_sal (CORE_ADDR func_addr, obj_section *section, | |
3726 | bool funfirstline) | |
3727 | { | |
3728 | symtab_and_line sal | |
3729 | = find_function_start_sal_1 (func_addr, section, funfirstline); | |
3730 | ||
3731 | /* find_function_start_sal_1 does a linetable search, so it finds | |
3732 | the symtab and linenumber, but not a symbol. Fill in the | |
3733 | function symbol too. */ | |
3734 | sal.symbol = find_pc_sect_containing_function (sal.pc, sal.section); | |
3735 | ||
3736 | return sal; | |
3737 | } | |
3738 | ||
3739 | /* See symtab.h. */ | |
3740 | ||
42ddae10 PA |
3741 | symtab_and_line |
3742 | find_function_start_sal (symbol *sym, bool funfirstline) | |
3743 | { | |
42ddae10 | 3744 | symtab_and_line sal |
6395b628 | 3745 | = find_function_start_sal_1 (sym->value_block ()->entry_pc (), |
e19b2d94 | 3746 | sym->obj_section (sym->objfile ()), |
cd2bb709 | 3747 | funfirstline); |
42ddae10 PA |
3748 | sal.symbol = sym; |
3749 | return sal; | |
3750 | } | |
3751 | ||
3752 | ||
8c7a1ee8 EZ |
3753 | /* Given a function start address FUNC_ADDR and SYMTAB, find the first |
3754 | address for that function that has an entry in SYMTAB's line info | |
3755 | table. If such an entry cannot be found, return FUNC_ADDR | |
3756 | unaltered. */ | |
eca864fe | 3757 | |
70221824 | 3758 | static CORE_ADDR |
8c7a1ee8 EZ |
3759 | skip_prologue_using_lineinfo (CORE_ADDR func_addr, struct symtab *symtab) |
3760 | { | |
3761 | CORE_ADDR func_start, func_end; | |
977a0c16 | 3762 | const struct linetable *l; |
952a6d41 | 3763 | int i; |
8c7a1ee8 EZ |
3764 | |
3765 | /* Give up if this symbol has no lineinfo table. */ | |
5b607461 | 3766 | l = symtab->linetable (); |
8c7a1ee8 EZ |
3767 | if (l == NULL) |
3768 | return func_addr; | |
3769 | ||
3770 | /* Get the range for the function's PC values, or give up if we | |
3771 | cannot, for some reason. */ | |
3772 | if (!find_pc_partial_function (func_addr, NULL, &func_start, &func_end)) | |
3773 | return func_addr; | |
3774 | ||
1acc9dca TT |
3775 | struct objfile *objfile = symtab->compunit ()->objfile (); |
3776 | ||
8c7a1ee8 EZ |
3777 | /* Linetable entries are ordered by PC values, see the commentary in |
3778 | symtab.h where `struct linetable' is defined. Thus, the first | |
3779 | entry whose PC is in the range [FUNC_START..FUNC_END[ is the | |
3780 | address we are looking for. */ | |
3781 | for (i = 0; i < l->nitems; i++) | |
3782 | { | |
977a0c16 | 3783 | const linetable_entry *item = &(l->item[i]); |
1acc9dca | 3784 | CORE_ADDR item_pc = item->pc (objfile); |
8c7a1ee8 EZ |
3785 | |
3786 | /* Don't use line numbers of zero, they mark special entries in | |
3787 | the table. See the commentary on symtab.h before the | |
3788 | definition of struct linetable. */ | |
1acc9dca TT |
3789 | if (item->line > 0 && func_start <= item_pc && item_pc < func_end) |
3790 | return item_pc; | |
8c7a1ee8 EZ |
3791 | } |
3792 | ||
3793 | return func_addr; | |
3794 | } | |
3795 | ||
cc96ae7f LS |
3796 | /* Try to locate the address where a breakpoint should be placed past the |
3797 | prologue of function starting at FUNC_ADDR using the line table. | |
3798 | ||
3799 | Return the address associated with the first entry in the line-table for | |
3800 | the function starting at FUNC_ADDR which has prologue_end set to true if | |
3801 | such entry exist, otherwise return an empty optional. */ | |
3802 | ||
6b09f134 | 3803 | static std::optional<CORE_ADDR> |
cc96ae7f LS |
3804 | skip_prologue_using_linetable (CORE_ADDR func_addr) |
3805 | { | |
3806 | CORE_ADDR start_pc, end_pc; | |
3807 | ||
3808 | if (!find_pc_partial_function (func_addr, nullptr, &start_pc, &end_pc)) | |
3809 | return {}; | |
3810 | ||
3811 | const struct symtab_and_line prologue_sal = find_pc_line (start_pc, 0); | |
3812 | if (prologue_sal.symtab != nullptr | |
3813 | && prologue_sal.symtab->language () != language_asm) | |
3814 | { | |
977a0c16 | 3815 | const linetable *linetable = prologue_sal.symtab->linetable (); |
cc96ae7f | 3816 | |
1acc9dca | 3817 | struct objfile *objfile = prologue_sal.symtab->compunit ()->objfile (); |
48e0f38c TT |
3818 | |
3819 | unrelocated_addr unrel_start | |
3820 | = unrelocated_addr (start_pc - objfile->text_section_offset ()); | |
3821 | unrelocated_addr unrel_end | |
3822 | = unrelocated_addr (end_pc - objfile->text_section_offset ()); | |
1acc9dca | 3823 | |
cc96ae7f | 3824 | auto it = std::lower_bound |
48e0f38c TT |
3825 | (linetable->item, linetable->item + linetable->nitems, unrel_start, |
3826 | [] (const linetable_entry <e, unrelocated_addr pc) | |
cc96ae7f | 3827 | { |
0434c3ef | 3828 | return lte.unrelocated_pc () < pc; |
cc96ae7f LS |
3829 | }); |
3830 | ||
3831 | for (; | |
48e0f38c | 3832 | (it < linetable->item + linetable->nitems |
0434c3ef | 3833 | && it->unrelocated_pc () < unrel_end); |
cc96ae7f LS |
3834 | it++) |
3835 | if (it->prologue_end) | |
1acc9dca | 3836 | return {it->pc (objfile)}; |
cc96ae7f LS |
3837 | } |
3838 | ||
3839 | return {}; | |
3840 | } | |
3841 | ||
059acae7 UW |
3842 | /* Adjust SAL to the first instruction past the function prologue. |
3843 | If the PC was explicitly specified, the SAL is not changed. | |
5b0e2db4 AB |
3844 | If the line number was explicitly specified then the SAL can still be |
3845 | updated, unless the language for SAL is assembler, in which case the SAL | |
3846 | will be left unchanged. | |
3847 | If SAL is already past the prologue, then do nothing. */ | |
eca864fe | 3848 | |
059acae7 UW |
3849 | void |
3850 | skip_prologue_sal (struct symtab_and_line *sal) | |
3851 | { | |
3852 | struct symbol *sym; | |
3853 | struct symtab_and_line start_sal; | |
8be455d7 | 3854 | CORE_ADDR pc, saved_pc; |
059acae7 UW |
3855 | struct obj_section *section; |
3856 | const char *name; | |
3857 | struct objfile *objfile; | |
3858 | struct gdbarch *gdbarch; | |
3977b71f | 3859 | const struct block *b, *function_block; |
8be455d7 | 3860 | int force_skip, skip; |
c906108c | 3861 | |
a4b411d6 | 3862 | /* Do not change the SAL if PC was specified explicitly. */ |
059acae7 UW |
3863 | if (sal->explicit_pc) |
3864 | return; | |
6c95b8df | 3865 | |
5b0e2db4 AB |
3866 | /* In assembly code, if the user asks for a specific line then we should |
3867 | not adjust the SAL. The user already has instruction level | |
3868 | visibility in this case, so selecting a line other than one requested | |
3869 | is likely to be the wrong choice. */ | |
3870 | if (sal->symtab != nullptr | |
3871 | && sal->explicit_line | |
1ee2e9f9 | 3872 | && sal->symtab->language () == language_asm) |
5b0e2db4 AB |
3873 | return; |
3874 | ||
5ed8105e PA |
3875 | scoped_restore_current_pspace_and_thread restore_pspace_thread; |
3876 | ||
059acae7 | 3877 | switch_to_program_space_and_thread (sal->pspace); |
6c95b8df | 3878 | |
059acae7 UW |
3879 | sym = find_pc_sect_function (sal->pc, sal->section); |
3880 | if (sym != NULL) | |
bccdca4a | 3881 | { |
e19b2d94 | 3882 | objfile = sym->objfile (); |
6395b628 | 3883 | pc = sym->value_block ()->entry_pc (); |
ebbc3a7d | 3884 | section = sym->obj_section (objfile); |
987012b8 | 3885 | name = sym->linkage_name (); |
c906108c | 3886 | } |
059acae7 UW |
3887 | else |
3888 | { | |
7c7b6655 | 3889 | struct bound_minimal_symbol msymbol |
dda83cd7 | 3890 | = lookup_minimal_symbol_by_pc_section (sal->pc, sal->section); |
433759f7 | 3891 | |
7c7b6655 | 3892 | if (msymbol.minsym == NULL) |
5ed8105e | 3893 | return; |
059acae7 | 3894 | |
7c7b6655 | 3895 | objfile = msymbol.objfile; |
4aeddc50 | 3896 | pc = msymbol.value_address (); |
ebbc3a7d | 3897 | section = msymbol.minsym->obj_section (objfile); |
c9d95fa3 | 3898 | name = msymbol.minsym->linkage_name (); |
059acae7 UW |
3899 | } |
3900 | ||
08feed99 | 3901 | gdbarch = objfile->arch (); |
059acae7 | 3902 | |
8be455d7 JK |
3903 | /* Process the prologue in two passes. In the first pass try to skip the |
3904 | prologue (SKIP is true) and verify there is a real need for it (indicated | |
3905 | by FORCE_SKIP). If no such reason was found run a second pass where the | |
3906 | prologue is not skipped (SKIP is false). */ | |
059acae7 | 3907 | |
8be455d7 JK |
3908 | skip = 1; |
3909 | force_skip = 1; | |
059acae7 | 3910 | |
8be455d7 JK |
3911 | /* Be conservative - allow direct PC (without skipping prologue) only if we |
3912 | have proven the CU (Compilation Unit) supports it. sal->SYMTAB does not | |
3913 | have to be set by the caller so we use SYM instead. */ | |
08be3fe3 | 3914 | if (sym != NULL |
4206d69e | 3915 | && sym->symtab ()->compunit ()->locations_valid ()) |
8be455d7 | 3916 | force_skip = 0; |
059acae7 | 3917 | |
8be455d7 JK |
3918 | saved_pc = pc; |
3919 | do | |
c906108c | 3920 | { |
8be455d7 | 3921 | pc = saved_pc; |
4309257c | 3922 | |
cc96ae7f | 3923 | /* Check if the compiler explicitly indicated where a breakpoint should |
287de656 | 3924 | be placed to skip the prologue. */ |
6109f7a3 | 3925 | if (!ignore_prologue_end_flag && skip) |
cc96ae7f | 3926 | { |
6b09f134 | 3927 | std::optional<CORE_ADDR> linetable_pc |
cc96ae7f LS |
3928 | = skip_prologue_using_linetable (pc); |
3929 | if (linetable_pc) | |
3930 | { | |
3931 | pc = *linetable_pc; | |
3932 | start_sal = find_pc_sect_line (pc, section, 0); | |
3933 | force_skip = 1; | |
3934 | continue; | |
3935 | } | |
3936 | } | |
3937 | ||
8be455d7 JK |
3938 | /* If the function is in an unmapped overlay, use its unmapped LMA address, |
3939 | so that gdbarch_skip_prologue has something unique to work on. */ | |
3940 | if (section_is_overlay (section) && !section_is_mapped (section)) | |
3941 | pc = overlay_unmapped_address (pc, section); | |
3942 | ||
3943 | /* Skip "first line" of function (which is actually its prologue). */ | |
3944 | pc += gdbarch_deprecated_function_start_offset (gdbarch); | |
591a12a1 | 3945 | if (gdbarch_skip_entrypoint_p (gdbarch)) |
dda83cd7 | 3946 | pc = gdbarch_skip_entrypoint (gdbarch, pc); |
8be455d7 | 3947 | if (skip) |
46a62268 | 3948 | pc = gdbarch_skip_prologue_noexcept (gdbarch, pc); |
8be455d7 JK |
3949 | |
3950 | /* For overlays, map pc back into its mapped VMA range. */ | |
3951 | pc = overlay_mapped_address (pc, section); | |
3952 | ||
3953 | /* Calculate line number. */ | |
059acae7 | 3954 | start_sal = find_pc_sect_line (pc, section, 0); |
8be455d7 JK |
3955 | |
3956 | /* Check if gdbarch_skip_prologue left us in mid-line, and the next | |
3957 | line is still part of the same function. */ | |
3958 | if (skip && start_sal.pc != pc | |
6395b628 | 3959 | && (sym ? (sym->value_block ()->entry_pc () <= start_sal.end |
4b8791e1 | 3960 | && start_sal.end < sym->value_block()->end ()) |
7cbd4a93 TT |
3961 | : (lookup_minimal_symbol_by_pc_section (start_sal.end, section).minsym |
3962 | == lookup_minimal_symbol_by_pc_section (pc, section).minsym))) | |
8be455d7 JK |
3963 | { |
3964 | /* First pc of next line */ | |
3965 | pc = start_sal.end; | |
3966 | /* Recalculate the line number (might not be N+1). */ | |
3967 | start_sal = find_pc_sect_line (pc, section, 0); | |
3968 | } | |
3969 | ||
3970 | /* On targets with executable formats that don't have a concept of | |
3971 | constructors (ELF with .init has, PE doesn't), gcc emits a call | |
3972 | to `__main' in `main' between the prologue and before user | |
3973 | code. */ | |
3974 | if (gdbarch_skip_main_prologue_p (gdbarch) | |
7ccffd7c | 3975 | && name && strcmp_iw (name, "main") == 0) |
8be455d7 JK |
3976 | { |
3977 | pc = gdbarch_skip_main_prologue (gdbarch, pc); | |
3978 | /* Recalculate the line number (might not be N+1). */ | |
3979 | start_sal = find_pc_sect_line (pc, section, 0); | |
3980 | force_skip = 1; | |
3981 | } | |
4309257c | 3982 | } |
8be455d7 | 3983 | while (!force_skip && skip--); |
4309257c | 3984 | |
8c7a1ee8 EZ |
3985 | /* If we still don't have a valid source line, try to find the first |
3986 | PC in the lineinfo table that belongs to the same function. This | |
3987 | happens with COFF debug info, which does not seem to have an | |
3988 | entry in lineinfo table for the code after the prologue which has | |
3989 | no direct relation to source. For example, this was found to be | |
3990 | the case with the DJGPP target using "gcc -gcoff" when the | |
3991 | compiler inserted code after the prologue to make sure the stack | |
3992 | is aligned. */ | |
8be455d7 | 3993 | if (!force_skip && sym && start_sal.symtab == NULL) |
8c7a1ee8 | 3994 | { |
4206d69e | 3995 | pc = skip_prologue_using_lineinfo (pc, sym->symtab ()); |
8c7a1ee8 | 3996 | /* Recalculate the line number. */ |
059acae7 | 3997 | start_sal = find_pc_sect_line (pc, section, 0); |
8c7a1ee8 EZ |
3998 | } |
3999 | ||
059acae7 UW |
4000 | /* If we're already past the prologue, leave SAL unchanged. Otherwise |
4001 | forward SAL to the end of the prologue. */ | |
4002 | if (sal->pc >= pc) | |
4003 | return; | |
4004 | ||
4005 | sal->pc = pc; | |
4006 | sal->section = section; | |
059acae7 UW |
4007 | sal->symtab = start_sal.symtab; |
4008 | sal->line = start_sal.line; | |
4009 | sal->end = start_sal.end; | |
c906108c | 4010 | |
edb3359d DJ |
4011 | /* Check if we are now inside an inlined function. If we can, |
4012 | use the call site of the function instead. */ | |
059acae7 | 4013 | b = block_for_pc_sect (sal->pc, sal->section); |
edb3359d DJ |
4014 | function_block = NULL; |
4015 | while (b != NULL) | |
4016 | { | |
a4dfe747 | 4017 | if (b->function () != NULL && b->inlined_p ()) |
edb3359d | 4018 | function_block = b; |
6c00f721 | 4019 | else if (b->function () != NULL) |
edb3359d | 4020 | break; |
f135fe72 | 4021 | b = b->superblock (); |
edb3359d DJ |
4022 | } |
4023 | if (function_block != NULL | |
6c00f721 | 4024 | && function_block->function ()->line () != 0) |
edb3359d | 4025 | { |
6c00f721 SM |
4026 | sal->line = function_block->function ()->line (); |
4027 | sal->symtab = function_block->function ()->symtab (); | |
edb3359d | 4028 | } |
c906108c | 4029 | } |
50641945 | 4030 | |
f1f58506 DE |
4031 | /* Given PC at the function's start address, attempt to find the |
4032 | prologue end using SAL information. Return zero if the skip fails. | |
4033 | ||
4034 | A non-optimized prologue traditionally has one SAL for the function | |
4035 | and a second for the function body. A single line function has | |
4036 | them both pointing at the same line. | |
4037 | ||
4038 | An optimized prologue is similar but the prologue may contain | |
4039 | instructions (SALs) from the instruction body. Need to skip those | |
4040 | while not getting into the function body. | |
4041 | ||
4042 | The functions end point and an increasing SAL line are used as | |
4043 | indicators of the prologue's endpoint. | |
4044 | ||
4045 | This code is based on the function refine_prologue_limit | |
4046 | (found in ia64). */ | |
4047 | ||
4048 | CORE_ADDR | |
4049 | skip_prologue_using_sal (struct gdbarch *gdbarch, CORE_ADDR func_addr) | |
4050 | { | |
4051 | struct symtab_and_line prologue_sal; | |
4052 | CORE_ADDR start_pc; | |
4053 | CORE_ADDR end_pc; | |
4054 | const struct block *bl; | |
4055 | ||
4056 | /* Get an initial range for the function. */ | |
4057 | find_pc_partial_function (func_addr, NULL, &start_pc, &end_pc); | |
4058 | start_pc += gdbarch_deprecated_function_start_offset (gdbarch); | |
4059 | ||
4060 | prologue_sal = find_pc_line (start_pc, 0); | |
4061 | if (prologue_sal.line != 0) | |
4062 | { | |
4063 | /* For languages other than assembly, treat two consecutive line | |
4064 | entries at the same address as a zero-instruction prologue. | |
4065 | The GNU assembler emits separate line notes for each instruction | |
4066 | in a multi-instruction macro, but compilers generally will not | |
4067 | do this. */ | |
1ee2e9f9 | 4068 | if (prologue_sal.symtab->language () != language_asm) |
f1f58506 | 4069 | { |
1acc9dca TT |
4070 | struct objfile *objfile |
4071 | = prologue_sal.symtab->compunit ()->objfile (); | |
977a0c16 | 4072 | const linetable *linetable = prologue_sal.symtab->linetable (); |
e84060b4 | 4073 | gdb_assert (linetable->nitems > 0); |
f1f58506 DE |
4074 | int idx = 0; |
4075 | ||
4076 | /* Skip any earlier lines, and any end-of-sequence marker | |
4077 | from a previous function. */ | |
e84060b4 AB |
4078 | while (idx + 1 < linetable->nitems |
4079 | && (linetable->item[idx].pc (objfile) != prologue_sal.pc | |
4080 | || linetable->item[idx].line == 0)) | |
f1f58506 DE |
4081 | idx++; |
4082 | ||
e84060b4 | 4083 | if (idx + 1 < linetable->nitems |
f1f58506 | 4084 | && linetable->item[idx+1].line != 0 |
1acc9dca | 4085 | && linetable->item[idx+1].pc (objfile) == start_pc) |
f1f58506 DE |
4086 | return start_pc; |
4087 | } | |
4088 | ||
4089 | /* If there is only one sal that covers the entire function, | |
4090 | then it is probably a single line function, like | |
4091 | "foo(){}". */ | |
4092 | if (prologue_sal.end >= end_pc) | |
4093 | return 0; | |
4094 | ||
4095 | while (prologue_sal.end < end_pc) | |
4096 | { | |
4097 | struct symtab_and_line sal; | |
4098 | ||
4099 | sal = find_pc_line (prologue_sal.end, 0); | |
4100 | if (sal.line == 0) | |
4101 | break; | |
4102 | /* Assume that a consecutive SAL for the same (or larger) | |
4103 | line mark the prologue -> body transition. */ | |
4104 | if (sal.line >= prologue_sal.line) | |
4105 | break; | |
4106 | /* Likewise if we are in a different symtab altogether | |
4107 | (e.g. within a file included via #include). */ | |
4108 | if (sal.symtab != prologue_sal.symtab) | |
4109 | break; | |
4110 | ||
4111 | /* The line number is smaller. Check that it's from the | |
4112 | same function, not something inlined. If it's inlined, | |
4113 | then there is no point comparing the line numbers. */ | |
4114 | bl = block_for_pc (prologue_sal.end); | |
4115 | while (bl) | |
4116 | { | |
a4dfe747 | 4117 | if (bl->inlined_p ()) |
f1f58506 | 4118 | break; |
6c00f721 | 4119 | if (bl->function ()) |
f1f58506 DE |
4120 | { |
4121 | bl = NULL; | |
4122 | break; | |
4123 | } | |
f135fe72 | 4124 | bl = bl->superblock (); |
f1f58506 DE |
4125 | } |
4126 | if (bl != NULL) | |
4127 | break; | |
4128 | ||
4129 | /* The case in which compiler's optimizer/scheduler has | |
4130 | moved instructions into the prologue. We look ahead in | |
4131 | the function looking for address ranges whose | |
4132 | corresponding line number is less the first one that we | |
4133 | found for the function. This is more conservative then | |
4134 | refine_prologue_limit which scans a large number of SALs | |
4135 | looking for any in the prologue. */ | |
4136 | prologue_sal = sal; | |
4137 | } | |
4138 | } | |
4139 | ||
4140 | if (prologue_sal.end < end_pc) | |
4141 | /* Return the end of this line, or zero if we could not find a | |
4142 | line. */ | |
4143 | return prologue_sal.end; | |
4144 | else | |
4145 | /* Don't return END_PC, which is past the end of the function. */ | |
4146 | return prologue_sal.pc; | |
4147 | } | |
bf223d3e PA |
4148 | |
4149 | /* See symtab.h. */ | |
4150 | ||
528b729b GL |
4151 | std::optional<CORE_ADDR> |
4152 | find_epilogue_using_linetable (CORE_ADDR func_addr) | |
4153 | { | |
4154 | CORE_ADDR start_pc, end_pc; | |
4155 | ||
4156 | if (!find_pc_partial_function (func_addr, nullptr, &start_pc, &end_pc)) | |
4157 | return {}; | |
4158 | ||
63ddc8af BE |
4159 | /* While the standard allows for multiple points marked with epilogue_begin |
4160 | in the same function, for performance reasons, this function will only | |
730f5068 BE |
4161 | find the last address that sets this flag for a given block. |
4162 | ||
4163 | The lines of a function can be described by several line tables in case | |
4164 | there are different files involved. There's a corner case where a | |
4165 | function epilogue is in a different file than a function start, and using | |
4166 | start_pc as argument to find_pc_line will mean we won't find the | |
4167 | epilogue. Instead, use "end_pc - 1" to maximize our chances of picking | |
4168 | the line table containing an epilogue. */ | |
4169 | const struct symtab_and_line sal = find_pc_line (end_pc - 1, 0); | |
528b729b GL |
4170 | if (sal.symtab != nullptr && sal.symtab->language () != language_asm) |
4171 | { | |
4172 | struct objfile *objfile = sal.symtab->compunit ()->objfile (); | |
4173 | unrelocated_addr unrel_start | |
4174 | = unrelocated_addr (start_pc - objfile->text_section_offset ()); | |
4175 | unrelocated_addr unrel_end | |
4176 | = unrelocated_addr (end_pc - objfile->text_section_offset ()); | |
4177 | ||
4178 | const linetable *linetable = sal.symtab->linetable (); | |
63ddc8af BE |
4179 | if (linetable == nullptr || linetable->nitems == 0) |
4180 | { | |
4181 | /* Empty line table. */ | |
4182 | return {}; | |
4183 | } | |
4184 | ||
4185 | /* Find the first linetable entry after the current function. Note that | |
4186 | this also may be an end_sequence entry. */ | |
528b729b GL |
4187 | auto it = std::lower_bound |
4188 | (linetable->item, linetable->item + linetable->nitems, unrel_end, | |
4189 | [] (const linetable_entry <e, unrelocated_addr pc) | |
4190 | { | |
4191 | return lte.unrelocated_pc () < pc; | |
4192 | }); | |
63ddc8af BE |
4193 | if (it == linetable->item + linetable->nitems) |
4194 | { | |
4195 | /* We couldn't find either: | |
4196 | - a linetable entry starting the function after the current | |
4197 | function, or | |
4198 | - an end_sequence entry that terminates the current function | |
4199 | at unrel_end. | |
4200 | ||
4201 | This can happen when the linetable doesn't describe the full | |
4202 | extent of the function. This can be triggered with: | |
4203 | - compiler-generated debug info, in the cornercase that the pc | |
4204 | with which we call find_pc_line resides in a different file | |
4205 | than unrel_end, or | |
4206 | - invalid dwarf assembly debug info. | |
4207 | In the former case, there's no point in iterating further, simply | |
4208 | return "not found". In the latter case, there's no current | |
4209 | incentive to attempt to support this, so handle this | |
4210 | conservatively and do the same. */ | |
4211 | return {}; | |
4212 | } | |
528b729b | 4213 | |
63ddc8af BE |
4214 | if (unrel_end < it->unrelocated_pc ()) |
4215 | { | |
4216 | /* We found a line entry that starts past the end of the | |
4217 | function. This can happen if the previous entry straddles | |
4218 | two functions, which shouldn't happen with compiler-generated | |
4219 | debug info. Handle the corner case conservatively. */ | |
4220 | return {}; | |
4221 | } | |
4222 | gdb_assert (unrel_end == it->unrelocated_pc ()); | |
4223 | ||
4224 | /* Move to the last linetable entry of the current function. */ | |
4225 | if (it == &linetable->item[0]) | |
4226 | { | |
4227 | /* Doing it-- would introduce undefined behaviour, avoid it by | |
4228 | explicitly handling this case. */ | |
4229 | return {}; | |
4230 | } | |
4231 | it--; | |
4232 | if (it->unrelocated_pc () < unrel_start) | |
4233 | { | |
4234 | /* Not in the current function. */ | |
4235 | return {}; | |
4236 | } | |
4237 | gdb_assert (it->unrelocated_pc () < unrel_end); | |
4238 | ||
4239 | /* We're at the the last linetable entry of the current function. This | |
4240 | is probably where the epilogue begins, but since the DWARF 5 spec | |
4241 | doesn't guarantee it, we iterate backwards through the current | |
4242 | function until we either find the epilogue beginning, or are sure | |
4243 | that it doesn't exist. */ | |
4244 | for (; it >= &linetable->item[0]; it--) | |
4245 | { | |
4246 | if (it->unrelocated_pc () < unrel_start) | |
4247 | { | |
4248 | /* No longer in the current function. */ | |
4249 | break; | |
4250 | } | |
4251 | ||
4252 | if (it->epilogue_begin) | |
4253 | { | |
4254 | /* Found the beginning of the epilogue. */ | |
4255 | return {it->pc (objfile)}; | |
4256 | } | |
4257 | ||
4258 | if (it == &linetable->item[0]) | |
4259 | { | |
4260 | /* No more entries in the current function. | |
4261 | Doing it-- would introduce undefined behaviour, avoid it by | |
4262 | explicitly handling this case. */ | |
4263 | break; | |
4264 | } | |
4265 | } | |
528b729b | 4266 | } |
63ddc8af | 4267 | |
528b729b GL |
4268 | return {}; |
4269 | } | |
4270 | ||
4271 | /* See symtab.h. */ | |
4272 | ||
bf223d3e PA |
4273 | symbol * |
4274 | find_function_alias_target (bound_minimal_symbol msymbol) | |
4275 | { | |
4024cf2b PA |
4276 | CORE_ADDR func_addr; |
4277 | if (!msymbol_is_function (msymbol.objfile, msymbol.minsym, &func_addr)) | |
bf223d3e PA |
4278 | return NULL; |
4279 | ||
4024cf2b | 4280 | symbol *sym = find_pc_function (func_addr); |
bf223d3e | 4281 | if (sym != NULL |
66d7f48f | 4282 | && sym->aclass () == LOC_BLOCK |
6395b628 | 4283 | && sym->value_block ()->entry_pc () == func_addr) |
bf223d3e PA |
4284 | return sym; |
4285 | ||
4286 | return NULL; | |
4287 | } | |
4288 | ||
f1f58506 | 4289 | \f |
c906108c SS |
4290 | /* If P is of the form "operator[ \t]+..." where `...' is |
4291 | some legitimate operator text, return a pointer to the | |
4292 | beginning of the substring of the operator text. | |
4293 | Otherwise, return "". */ | |
eca864fe | 4294 | |
96142726 TT |
4295 | static const char * |
4296 | operator_chars (const char *p, const char **end) | |
c906108c SS |
4297 | { |
4298 | *end = ""; | |
8090b426 | 4299 | if (!startswith (p, CP_OPERATOR_STR)) |
c906108c | 4300 | return *end; |
8090b426 | 4301 | p += CP_OPERATOR_LEN; |
c906108c SS |
4302 | |
4303 | /* Don't get faked out by `operator' being part of a longer | |
4304 | identifier. */ | |
c5aa993b | 4305 | if (isalpha (*p) || *p == '_' || *p == '$' || *p == '\0') |
c906108c SS |
4306 | return *end; |
4307 | ||
4308 | /* Allow some whitespace between `operator' and the operator symbol. */ | |
4309 | while (*p == ' ' || *p == '\t') | |
4310 | p++; | |
4311 | ||
c378eb4e | 4312 | /* Recognize 'operator TYPENAME'. */ |
c906108c | 4313 | |
c5aa993b | 4314 | if (isalpha (*p) || *p == '_' || *p == '$') |
c906108c | 4315 | { |
96142726 | 4316 | const char *q = p + 1; |
433759f7 | 4317 | |
c5aa993b | 4318 | while (isalnum (*q) || *q == '_' || *q == '$') |
c906108c SS |
4319 | q++; |
4320 | *end = q; | |
4321 | return p; | |
4322 | } | |
4323 | ||
53e8ad3d MS |
4324 | while (*p) |
4325 | switch (*p) | |
4326 | { | |
4327 | case '\\': /* regexp quoting */ | |
4328 | if (p[1] == '*') | |
4329 | { | |
3e43a32a | 4330 | if (p[2] == '=') /* 'operator\*=' */ |
53e8ad3d MS |
4331 | *end = p + 3; |
4332 | else /* 'operator\*' */ | |
4333 | *end = p + 2; | |
4334 | return p; | |
4335 | } | |
4336 | else if (p[1] == '[') | |
4337 | { | |
4338 | if (p[2] == ']') | |
3e43a32a MS |
4339 | error (_("mismatched quoting on brackets, " |
4340 | "try 'operator\\[\\]'")); | |
53e8ad3d MS |
4341 | else if (p[2] == '\\' && p[3] == ']') |
4342 | { | |
4343 | *end = p + 4; /* 'operator\[\]' */ | |
4344 | return p; | |
4345 | } | |
4346 | else | |
8a3fe4f8 | 4347 | error (_("nothing is allowed between '[' and ']'")); |
53e8ad3d | 4348 | } |
9af17804 | 4349 | else |
53e8ad3d | 4350 | { |
85102364 | 4351 | /* Gratuitous quote: skip it and move on. */ |
53e8ad3d MS |
4352 | p++; |
4353 | continue; | |
4354 | } | |
4355 | break; | |
4356 | case '!': | |
4357 | case '=': | |
4358 | case '*': | |
4359 | case '/': | |
4360 | case '%': | |
4361 | case '^': | |
4362 | if (p[1] == '=') | |
4363 | *end = p + 2; | |
4364 | else | |
4365 | *end = p + 1; | |
4366 | return p; | |
4367 | case '<': | |
4368 | case '>': | |
4369 | case '+': | |
4370 | case '-': | |
4371 | case '&': | |
4372 | case '|': | |
4373 | if (p[0] == '-' && p[1] == '>') | |
4374 | { | |
c378eb4e | 4375 | /* Struct pointer member operator 'operator->'. */ |
53e8ad3d MS |
4376 | if (p[2] == '*') |
4377 | { | |
4378 | *end = p + 3; /* 'operator->*' */ | |
4379 | return p; | |
4380 | } | |
4381 | else if (p[2] == '\\') | |
4382 | { | |
4383 | *end = p + 4; /* Hopefully 'operator->\*' */ | |
4384 | return p; | |
4385 | } | |
4386 | else | |
4387 | { | |
4388 | *end = p + 2; /* 'operator->' */ | |
4389 | return p; | |
4390 | } | |
4391 | } | |
4392 | if (p[1] == '=' || p[1] == p[0]) | |
4393 | *end = p + 2; | |
4394 | else | |
4395 | *end = p + 1; | |
4396 | return p; | |
4397 | case '~': | |
4398 | case ',': | |
c5aa993b | 4399 | *end = p + 1; |
53e8ad3d MS |
4400 | return p; |
4401 | case '(': | |
4402 | if (p[1] != ')') | |
3e43a32a MS |
4403 | error (_("`operator ()' must be specified " |
4404 | "without whitespace in `()'")); | |
c5aa993b | 4405 | *end = p + 2; |
53e8ad3d MS |
4406 | return p; |
4407 | case '?': | |
4408 | if (p[1] != ':') | |
3e43a32a MS |
4409 | error (_("`operator ?:' must be specified " |
4410 | "without whitespace in `?:'")); | |
53e8ad3d MS |
4411 | *end = p + 2; |
4412 | return p; | |
4413 | case '[': | |
4414 | if (p[1] != ']') | |
3e43a32a MS |
4415 | error (_("`operator []' must be specified " |
4416 | "without whitespace in `[]'")); | |
53e8ad3d MS |
4417 | *end = p + 2; |
4418 | return p; | |
4419 | default: | |
8a3fe4f8 | 4420 | error (_("`operator %s' not supported"), p); |
53e8ad3d MS |
4421 | break; |
4422 | } | |
4423 | ||
c906108c SS |
4424 | *end = ""; |
4425 | return *end; | |
4426 | } | |
c906108c | 4427 | \f |
c5aa993b | 4428 | |
4a0788e0 | 4429 | /* See class declaration. */ |
9fdc877b | 4430 | |
4a0788e0 | 4431 | info_sources_filter::info_sources_filter (match_on match_type, |
287de656 | 4432 | const char *regexp) |
4a0788e0 AB |
4433 | : m_match_type (match_type), |
4434 | m_regexp (regexp) | |
9fdc877b | 4435 | { |
4a0788e0 AB |
4436 | /* Setup the compiled regular expression M_C_REGEXP based on M_REGEXP. */ |
4437 | if (m_regexp != nullptr && *m_regexp != '\0') | |
4438 | { | |
4439 | gdb_assert (m_regexp != nullptr); | |
28cd9371 | 4440 | |
4a0788e0 AB |
4441 | int cflags = REG_NOSUB; |
4442 | #ifdef HAVE_CASE_INSENSITIVE_FILE_SYSTEM | |
4443 | cflags |= REG_ICASE; | |
4444 | #endif | |
4445 | m_c_regexp.emplace (m_regexp, cflags, _("Invalid regexp")); | |
4446 | } | |
4447 | } | |
28cd9371 | 4448 | |
4a0788e0 | 4449 | /* See class declaration. */ |
9fdc877b | 4450 | |
4a0788e0 AB |
4451 | bool |
4452 | info_sources_filter::matches (const char *fullname) const | |
4453 | { | |
4454 | /* Does it match regexp? */ | |
4455 | if (m_c_regexp.has_value ()) | |
4456 | { | |
4457 | const char *to_match; | |
4458 | std::string dirname; | |
4459 | ||
4460 | switch (m_match_type) | |
287de656 SM |
4461 | { |
4462 | case match_on::DIRNAME: | |
4463 | dirname = ldirname (fullname); | |
4464 | to_match = dirname.c_str (); | |
4465 | break; | |
4466 | case match_on::BASENAME: | |
4467 | to_match = lbasename (fullname); | |
4468 | break; | |
4469 | case match_on::FULLNAME: | |
4470 | to_match = fullname; | |
4471 | break; | |
b6aeb717 TT |
4472 | default: |
4473 | gdb_assert_not_reached ("bad m_match_type"); | |
287de656 | 4474 | } |
4a0788e0 AB |
4475 | |
4476 | if (m_c_regexp->exec (to_match, 0, NULL, 0) != 0) | |
287de656 | 4477 | return false; |
4a0788e0 AB |
4478 | } |
4479 | ||
4480 | return true; | |
4481 | } | |
4482 | ||
4a0788e0 AB |
4483 | /* Data structure to maintain the state used for printing the results of |
4484 | the 'info sources' command. */ | |
4485 | ||
4486 | struct output_source_filename_data | |
4487 | { | |
4488 | /* Create an object for displaying the results of the 'info sources' | |
0e350a05 AB |
4489 | command to UIOUT. FILTER must remain valid and unchanged for the |
4490 | lifetime of this object as this object retains a reference to FILTER. */ | |
4491 | output_source_filename_data (struct ui_out *uiout, | |
4492 | const info_sources_filter &filter) | |
4493 | : m_filter (filter), | |
4494 | m_uiout (uiout) | |
4a0788e0 AB |
4495 | { /* Nothing. */ } |
4496 | ||
4497 | DISABLE_COPY_AND_ASSIGN (output_source_filename_data); | |
4498 | ||
4499 | /* Reset enough state of this object so we can match against a new set of | |
4500 | files. The existing regular expression is retained though. */ | |
4501 | void reset_output () | |
4502 | { | |
4503 | m_first = true; | |
4504 | m_filename_seen_cache.clear (); | |
4505 | } | |
4506 | ||
0e350a05 AB |
4507 | /* Worker for sources_info, outputs the file name formatted for either |
4508 | cli or mi (based on the current_uiout). In cli mode displays | |
4509 | FULLNAME with a comma separating this name from any previously | |
4510 | printed name (line breaks are added at the comma). In MI mode | |
4511 | outputs a tuple containing DISP_NAME (the files display name), | |
4512 | FULLNAME, and EXPANDED_P (true when this file is from a fully | |
4513 | expanded symtab, otherwise false). */ | |
4514 | void output (const char *disp_name, const char *fullname, bool expanded_p); | |
eca864fe | 4515 | |
f4655dee TT |
4516 | /* An overload suitable for use as a callback to |
4517 | quick_symbol_functions::map_symbol_filenames. */ | |
4518 | void operator() (const char *filename, const char *fullname) | |
4519 | { | |
0e350a05 AB |
4520 | /* The false here indicates that this file is from an unexpanded |
4521 | symtab. */ | |
4522 | output (filename, fullname, false); | |
f4655dee | 4523 | } |
4a0788e0 | 4524 | |
bd742128 AB |
4525 | /* Return true if at least one filename has been printed (after a call to |
4526 | output) since either this object was created, or the last call to | |
4527 | reset_output. */ | |
4528 | bool printed_filename_p () const | |
4529 | { | |
4530 | return !m_first; | |
4531 | } | |
4532 | ||
4a0788e0 AB |
4533 | private: |
4534 | ||
4535 | /* Flag of whether we're printing the first one. */ | |
4536 | bool m_first = true; | |
4537 | ||
4538 | /* Cache of what we've seen so far. */ | |
4539 | filename_seen_cache m_filename_seen_cache; | |
4540 | ||
4541 | /* How source filename should be filtered. */ | |
4542 | const info_sources_filter &m_filter; | |
0e350a05 AB |
4543 | |
4544 | /* The object to which output is sent. */ | |
4545 | struct ui_out *m_uiout; | |
f4655dee TT |
4546 | }; |
4547 | ||
4a0788e0 AB |
4548 | /* See comment in class declaration above. */ |
4549 | ||
f4655dee | 4550 | void |
0e350a05 AB |
4551 | output_source_filename_data::output (const char *disp_name, |
4552 | const char *fullname, | |
4553 | bool expanded_p) | |
c94fdfd0 EZ |
4554 | { |
4555 | /* Since a single source file can result in several partial symbol | |
4556 | tables, we need to avoid printing it more than once. Note: if | |
4557 | some of the psymtabs are read in and some are not, it gets | |
4558 | printed both under "Source files for which symbols have been | |
4559 | read" and "Source files for which symbols will be read in on | |
4560 | demand". I consider this a reasonable way to deal with the | |
4561 | situation. I'm not sure whether this can also happen for | |
4562 | symtabs; it doesn't hurt to check. */ | |
4563 | ||
4a0788e0 | 4564 | /* Was NAME already seen? If so, then don't print it again. */ |
0e350a05 | 4565 | if (m_filename_seen_cache.seen (fullname)) |
4a0788e0 | 4566 | return; |
28cd9371 | 4567 | |
4a0788e0 | 4568 | /* If the filter rejects this file then don't print it. */ |
0e350a05 | 4569 | if (!m_filter.matches (fullname)) |
4a0788e0 | 4570 | return; |
28cd9371 | 4571 | |
0e350a05 AB |
4572 | ui_out_emit_tuple ui_emitter (m_uiout, nullptr); |
4573 | ||
28cd9371 | 4574 | /* Print it and reset *FIRST. */ |
4a0788e0 | 4575 | if (!m_first) |
0e350a05 | 4576 | m_uiout->text (", "); |
4a0788e0 | 4577 | m_first = false; |
c906108c | 4578 | |
1285ce86 | 4579 | m_uiout->wrap_hint (0); |
0e350a05 AB |
4580 | if (m_uiout->is_mi_like_p ()) |
4581 | { | |
4582 | m_uiout->field_string ("file", disp_name, file_name_style.style ()); | |
4583 | if (fullname != nullptr) | |
4584 | m_uiout->field_string ("fullname", fullname, | |
4585 | file_name_style.style ()); | |
4586 | m_uiout->field_string ("debug-fully-read", | |
4587 | (expanded_p ? "true" : "false")); | |
4588 | } | |
4589 | else | |
4590 | { | |
4591 | if (fullname == nullptr) | |
4592 | fullname = disp_name; | |
4593 | m_uiout->field_string ("fullname", fullname, | |
4594 | file_name_style.style ()); | |
4595 | } | |
c5aa993b | 4596 | } |
c906108c | 4597 | |
4a0788e0 AB |
4598 | /* For the 'info sources' command, what part of the file names should we be |
4599 | matching the user supplied regular expression against? */ | |
4600 | ||
4601 | struct filename_partial_match_opts | |
4602 | { | |
4603 | /* Only match the directory name part. */ | |
4604 | bool dirname = false; | |
4605 | ||
4606 | /* Only match the basename part. */ | |
4607 | bool basename = false; | |
4608 | }; | |
4609 | ||
28cd9371 PW |
4610 | using isrc_flag_option_def |
4611 | = gdb::option::flag_option_def<filename_partial_match_opts>; | |
4612 | ||
4613 | static const gdb::option::option_def info_sources_option_defs[] = { | |
4614 | ||
4615 | isrc_flag_option_def { | |
4616 | "dirname", | |
4617 | [] (filename_partial_match_opts *opts) { return &opts->dirname; }, | |
4618 | N_("Show only the files having a dirname matching REGEXP."), | |
4619 | }, | |
4620 | ||
4621 | isrc_flag_option_def { | |
4622 | "basename", | |
4623 | [] (filename_partial_match_opts *opts) { return &opts->basename; }, | |
4624 | N_("Show only the files having a basename matching REGEXP."), | |
4625 | }, | |
4626 | ||
4627 | }; | |
4628 | ||
4629 | /* Create an option_def_group for the "info sources" options, with | |
4630 | ISRC_OPTS as context. */ | |
4631 | ||
4632 | static inline gdb::option::option_def_group | |
4633 | make_info_sources_options_def_group (filename_partial_match_opts *isrc_opts) | |
4634 | { | |
4635 | return {{info_sources_option_defs}, isrc_opts}; | |
4636 | } | |
4637 | ||
28cd9371 PW |
4638 | /* Completer for "info sources". */ |
4639 | ||
4640 | static void | |
4641 | info_sources_command_completer (cmd_list_element *ignore, | |
4642 | completion_tracker &tracker, | |
4643 | const char *text, const char *word) | |
4644 | { | |
4645 | const auto group = make_info_sources_options_def_group (nullptr); | |
4646 | if (gdb::option::complete_options | |
4647 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
4648 | return; | |
4649 | } | |
4650 | ||
0e350a05 AB |
4651 | /* See symtab.h. */ |
4652 | ||
4653 | void | |
4654 | info_sources_worker (struct ui_out *uiout, | |
1fb1ce02 | 4655 | bool group_by_objfile, |
0e350a05 AB |
4656 | const info_sources_filter &filter) |
4657 | { | |
4658 | output_source_filename_data data (uiout, filter); | |
4659 | ||
4660 | ui_out_emit_list results_emitter (uiout, "files"); | |
6b09f134 LS |
4661 | std::optional<ui_out_emit_tuple> output_tuple; |
4662 | std::optional<ui_out_emit_list> sources_list; | |
0e350a05 | 4663 | |
bd742128 | 4664 | gdb_assert (group_by_objfile || uiout->is_mi_like_p ()); |
0e350a05 AB |
4665 | |
4666 | for (objfile *objfile : current_program_space->objfiles ()) | |
4667 | { | |
1fb1ce02 AB |
4668 | if (group_by_objfile) |
4669 | { | |
4670 | output_tuple.emplace (uiout, nullptr); | |
972f7a4b TT |
4671 | uiout->field_string ("filename", objfile_name (objfile), |
4672 | file_name_style.style ()); | |
bd742128 | 4673 | uiout->text (":\n"); |
1fb1ce02 | 4674 | bool debug_fully_readin = !objfile->has_unexpanded_symtabs (); |
bd742128 | 4675 | if (uiout->is_mi_like_p ()) |
1fb1ce02 | 4676 | { |
bd742128 AB |
4677 | const char *debug_info_state; |
4678 | if (objfile_has_symbols (objfile)) | |
4679 | { | |
4680 | if (debug_fully_readin) | |
4681 | debug_info_state = "fully-read"; | |
4682 | else | |
4683 | debug_info_state = "partially-read"; | |
4684 | } | |
1fb1ce02 | 4685 | else |
bd742128 AB |
4686 | debug_info_state = "none"; |
4687 | current_uiout->field_string ("debug-info", debug_info_state); | |
1fb1ce02 AB |
4688 | } |
4689 | else | |
bd742128 AB |
4690 | { |
4691 | if (!debug_fully_readin) | |
4692 | uiout->text ("(Full debug information has not yet been read " | |
4693 | "for this file.)\n"); | |
4694 | if (!objfile_has_symbols (objfile)) | |
4695 | uiout->text ("(Objfile has no debug information.)\n"); | |
4696 | uiout->text ("\n"); | |
4697 | } | |
1fb1ce02 AB |
4698 | sources_list.emplace (uiout, "sources"); |
4699 | } | |
4700 | ||
0e350a05 AB |
4701 | for (compunit_symtab *cu : objfile->compunits ()) |
4702 | { | |
102cc235 | 4703 | for (symtab *s : cu->filetabs ()) |
0e350a05 AB |
4704 | { |
4705 | const char *file = symtab_to_filename_for_display (s); | |
4706 | const char *fullname = symtab_to_fullname (s); | |
4707 | data.output (file, fullname, true); | |
4708 | } | |
4709 | } | |
1fb1ce02 AB |
4710 | |
4711 | if (group_by_objfile) | |
4712 | { | |
4713 | objfile->map_symbol_filenames (data, true /* need_fullname */); | |
bd742128 AB |
4714 | if (data.printed_filename_p ()) |
4715 | uiout->text ("\n\n"); | |
1fb1ce02 AB |
4716 | data.reset_output (); |
4717 | sources_list.reset (); | |
4718 | output_tuple.reset (); | |
4719 | } | |
0e350a05 AB |
4720 | } |
4721 | ||
1fb1ce02 AB |
4722 | if (!group_by_objfile) |
4723 | { | |
1fb1ce02 AB |
4724 | data.reset_output (); |
4725 | map_symbol_filenames (data, true /*need_fullname*/); | |
1fb1ce02 | 4726 | } |
0e350a05 AB |
4727 | } |
4728 | ||
4a0788e0 AB |
4729 | /* Implement the 'info sources' command. */ |
4730 | ||
28cd9371 PW |
4731 | static void |
4732 | info_sources_command (const char *args, int from_tty) | |
c906108c | 4733 | { |
c906108c | 4734 | if (!have_full_symbols () && !have_partial_symbols ()) |
4a0788e0 | 4735 | error (_("No symbol table is loaded. Use the \"file\" command.")); |
28cd9371 | 4736 | |
4a0788e0 AB |
4737 | filename_partial_match_opts match_opts; |
4738 | auto group = make_info_sources_options_def_group (&match_opts); | |
28cd9371 PW |
4739 | gdb::option::process_options |
4740 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_ERROR, group); | |
9fdc877b | 4741 | |
4a0788e0 AB |
4742 | if (match_opts.dirname && match_opts.basename) |
4743 | error (_("You cannot give both -basename and -dirname to 'info sources'.")); | |
c906108c | 4744 | |
4a0788e0 | 4745 | const char *regex = nullptr; |
0e350a05 | 4746 | if (args != NULL && *args != '\000') |
4a0788e0 | 4747 | regex = args; |
28cd9371 | 4748 | |
4a0788e0 AB |
4749 | if ((match_opts.dirname || match_opts.basename) && regex == nullptr) |
4750 | error (_("Missing REGEXP for 'info sources'.")); | |
28cd9371 | 4751 | |
4a0788e0 AB |
4752 | info_sources_filter::match_on match_type; |
4753 | if (match_opts.dirname) | |
4754 | match_type = info_sources_filter::match_on::DIRNAME; | |
4755 | else if (match_opts.basename) | |
4756 | match_type = info_sources_filter::match_on::BASENAME; | |
28cd9371 | 4757 | else |
4a0788e0 AB |
4758 | match_type = info_sources_filter::match_on::FULLNAME; |
4759 | ||
4760 | info_sources_filter filter (match_type, regex); | |
bd742128 | 4761 | info_sources_worker (current_uiout, true, filter); |
c906108c SS |
4762 | } |
4763 | ||
470c0b1c AB |
4764 | /* Compare FILE against all the entries of FILENAMES. If BASENAMES is |
4765 | true compare only lbasename of FILENAMES. */ | |
fbd9ab74 | 4766 | |
470c0b1c AB |
4767 | static bool |
4768 | file_matches (const char *file, const std::vector<const char *> &filenames, | |
4769 | bool basenames) | |
c906108c | 4770 | { |
470c0b1c AB |
4771 | if (filenames.empty ()) |
4772 | return true; | |
c906108c | 4773 | |
470c0b1c | 4774 | for (const char *name : filenames) |
c906108c | 4775 | { |
470c0b1c AB |
4776 | name = (basenames ? lbasename (name) : name); |
4777 | if (compare_filenames_for_search (file, name)) | |
4778 | return true; | |
c906108c | 4779 | } |
470c0b1c AB |
4780 | |
4781 | return false; | |
c906108c SS |
4782 | } |
4783 | ||
f97a63c5 AB |
4784 | /* Helper function for std::sort on symbol_search objects. Can only sort |
4785 | symbols, not minimal symbols. */ | |
eca864fe | 4786 | |
b9c04fb2 TT |
4787 | int |
4788 | symbol_search::compare_search_syms (const symbol_search &sym_a, | |
4789 | const symbol_search &sym_b) | |
434d2d4f | 4790 | { |
b52109bc DE |
4791 | int c; |
4792 | ||
4206d69e TT |
4793 | c = FILENAME_CMP (sym_a.symbol->symtab ()->filename, |
4794 | sym_b.symbol->symtab ()->filename); | |
b52109bc DE |
4795 | if (c != 0) |
4796 | return c; | |
434d2d4f | 4797 | |
b9c04fb2 TT |
4798 | if (sym_a.block != sym_b.block) |
4799 | return sym_a.block - sym_b.block; | |
b52109bc | 4800 | |
987012b8 | 4801 | return strcmp (sym_a.symbol->print_name (), sym_b.symbol->print_name ()); |
434d2d4f DJ |
4802 | } |
4803 | ||
12615cba PW |
4804 | /* Returns true if the type_name of symbol_type of SYM matches TREG. |
4805 | If SYM has no symbol_type or symbol_name, returns false. */ | |
4806 | ||
4807 | bool | |
4808 | treg_matches_sym_type_name (const compiled_regex &treg, | |
4809 | const struct symbol *sym) | |
4810 | { | |
4811 | struct type *sym_type; | |
4812 | std::string printed_sym_type_name; | |
4813 | ||
b1e678d9 AB |
4814 | symbol_lookup_debug_printf_v ("treg_matches_sym_type_name, sym %s", |
4815 | sym->natural_name ()); | |
12615cba | 4816 | |
5f9c5a63 | 4817 | sym_type = sym->type (); |
12615cba PW |
4818 | if (sym_type == NULL) |
4819 | return false; | |
4820 | ||
43d397ca PW |
4821 | { |
4822 | scoped_switch_to_sym_language_if_auto l (sym); | |
12615cba | 4823 | |
12615cba | 4824 | printed_sym_type_name = type_to_string (sym_type); |
43d397ca PW |
4825 | } |
4826 | ||
b1e678d9 AB |
4827 | symbol_lookup_debug_printf_v ("sym_type_name %s", |
4828 | printed_sym_type_name.c_str ()); | |
12615cba PW |
4829 | |
4830 | if (printed_sym_type_name.empty ()) | |
4831 | return false; | |
4832 | ||
4833 | return treg.exec (printed_sym_type_name.c_str (), 0, NULL, 0) == 0; | |
4834 | } | |
4835 | ||
f97a63c5 AB |
4836 | /* See symtab.h. */ |
4837 | ||
4838 | bool | |
4839 | global_symbol_searcher::is_suitable_msymbol | |
c92d4de1 | 4840 | (const domain_search_flags kind, const minimal_symbol *msymbol) |
f97a63c5 | 4841 | { |
60f62e2b | 4842 | switch (msymbol->type ()) |
f97a63c5 AB |
4843 | { |
4844 | case mst_data: | |
4845 | case mst_bss: | |
4846 | case mst_file_data: | |
4847 | case mst_file_bss: | |
c92d4de1 | 4848 | return (kind & SEARCH_VAR_DOMAIN) != 0; |
f97a63c5 AB |
4849 | case mst_text: |
4850 | case mst_file_text: | |
4851 | case mst_solib_trampoline: | |
4852 | case mst_text_gnu_ifunc: | |
c92d4de1 | 4853 | return (kind & SEARCH_FUNCTION_DOMAIN) != 0; |
f97a63c5 AB |
4854 | default: |
4855 | return false; | |
4856 | } | |
4857 | } | |
4858 | ||
4859 | /* See symtab.h. */ | |
4860 | ||
4861 | bool | |
4862 | global_symbol_searcher::expand_symtabs | |
6b09f134 | 4863 | (objfile *objfile, const std::optional<compiled_regex> &preg) const |
f97a63c5 | 4864 | { |
c92d4de1 | 4865 | domain_search_flags kind = m_kind; |
f97a63c5 AB |
4866 | bool found_msymbol = false; |
4867 | ||
c5a9fcdf TT |
4868 | auto do_file_match = [&] (const char *filename, bool basenames) |
4869 | { | |
4870 | return file_matches (filename, filenames, basenames); | |
4871 | }; | |
4872 | gdb::function_view<expand_symtabs_file_matcher_ftype> file_matcher = nullptr; | |
4873 | if (!filenames.empty ()) | |
4874 | file_matcher = do_file_match; | |
4875 | ||
4d080b46 | 4876 | objfile->expand_symtabs_matching |
c5a9fcdf | 4877 | (file_matcher, |
4d080b46 TT |
4878 | &lookup_name_info::match_any (), |
4879 | [&] (const char *symname) | |
4880 | { | |
4881 | return (!preg.has_value () | |
4882 | || preg->exec (symname, 0, NULL, 0) == 0); | |
4883 | }, | |
4884 | NULL, | |
03a8ea51 | 4885 | SEARCH_GLOBAL_BLOCK | SEARCH_STATIC_BLOCK, |
4d080b46 | 4886 | kind); |
f97a63c5 AB |
4887 | |
4888 | /* Here, we search through the minimal symbol tables for functions and | |
4889 | variables that match, and force their symbols to be read. This is in | |
4890 | particular necessary for demangled variable names, which are no longer | |
4891 | put into the partial symbol tables. The symbol will then be found | |
4892 | during the scan of symtabs later. | |
4893 | ||
4894 | For functions, find_pc_symtab should succeed if we have debug info for | |
4895 | the function, for variables we have to call | |
4896 | lookup_symbol_in_objfile_from_linkage_name to determine if the | |
4897 | variable has debug info. If the lookup fails, set found_msymbol so | |
4898 | that we will rescan to print any matching symbols without debug info. | |
4899 | We only search the objfile the msymbol came from, we no longer search | |
4900 | all objfiles. In large programs (1000s of shared libs) searching all | |
4901 | objfiles is not worth the pain. */ | |
4902 | if (filenames.empty () | |
c92d4de1 | 4903 | && (kind & (SEARCH_VAR_DOMAIN | SEARCH_FUNCTION_DOMAIN)) != 0) |
f97a63c5 AB |
4904 | { |
4905 | for (minimal_symbol *msymbol : objfile->msymbols ()) | |
4906 | { | |
4907 | QUIT; | |
4908 | ||
4909 | if (msymbol->created_by_gdb) | |
4910 | continue; | |
4911 | ||
4912 | if (is_suitable_msymbol (kind, msymbol)) | |
4913 | { | |
4914 | if (!preg.has_value () | |
4915 | || preg->exec (msymbol->natural_name (), 0, | |
4916 | NULL, 0) == 0) | |
4917 | { | |
4918 | /* An important side-effect of these lookup functions is | |
4919 | to expand the symbol table if msymbol is found, later | |
4920 | in the process we will add matching symbols or | |
4921 | msymbols to the results list, and that requires that | |
4922 | the symbols tables are expanded. */ | |
c92d4de1 | 4923 | if ((kind & SEARCH_FUNCTION_DOMAIN) != 0 |
f97a63c5 | 4924 | ? (find_pc_compunit_symtab |
4aeddc50 | 4925 | (msymbol->value_address (objfile)) == NULL) |
f97a63c5 AB |
4926 | : (lookup_symbol_in_objfile_from_linkage_name |
4927 | (objfile, msymbol->linkage_name (), | |
ccf41c24 | 4928 | SEARCH_VFT) |
f97a63c5 AB |
4929 | .symbol == NULL)) |
4930 | found_msymbol = true; | |
4931 | } | |
4932 | } | |
4933 | } | |
4934 | } | |
4935 | ||
4936 | return found_msymbol; | |
4937 | } | |
4938 | ||
4939 | /* See symtab.h. */ | |
4940 | ||
c2512106 | 4941 | bool |
f97a63c5 AB |
4942 | global_symbol_searcher::add_matching_symbols |
4943 | (objfile *objfile, | |
6b09f134 LS |
4944 | const std::optional<compiled_regex> &preg, |
4945 | const std::optional<compiled_regex> &treg, | |
c2512106 | 4946 | std::set<symbol_search> *result_set) const |
f97a63c5 | 4947 | { |
c92d4de1 | 4948 | domain_search_flags kind = m_kind; |
f97a63c5 AB |
4949 | |
4950 | /* Add matching symbols (if not already present). */ | |
4951 | for (compunit_symtab *cust : objfile->compunits ()) | |
4952 | { | |
af39c5c8 | 4953 | const struct blockvector *bv = cust->blockvector (); |
f97a63c5 AB |
4954 | |
4955 | for (block_enum block : { GLOBAL_BLOCK, STATIC_BLOCK }) | |
4956 | { | |
63d609de | 4957 | const struct block *b = bv->block (block); |
f97a63c5 | 4958 | |
548a89df | 4959 | for (struct symbol *sym : block_iterator_range (b)) |
f97a63c5 | 4960 | { |
4206d69e | 4961 | struct symtab *real_symtab = sym->symtab (); |
f97a63c5 AB |
4962 | |
4963 | QUIT; | |
4964 | ||
4965 | /* Check first sole REAL_SYMTAB->FILENAME. It does | |
4966 | not need to be a substring of symtab_to_fullname as | |
4967 | it may contain "./" etc. */ | |
d4f48c1e TT |
4968 | if (!(file_matches (real_symtab->filename, filenames, false) |
4969 | || ((basenames_may_differ | |
4970 | || file_matches (lbasename (real_symtab->filename), | |
4971 | filenames, true)) | |
4972 | && file_matches (symtab_to_fullname (real_symtab), | |
4973 | filenames, false)))) | |
4974 | continue; | |
4975 | ||
974b36c2 TT |
4976 | if (!sym->matches (kind)) |
4977 | continue; | |
4978 | ||
51d525db JR |
4979 | if (preg.has_value () && preg->exec (sym->natural_name (), 0, |
4980 | nullptr, 0) != 0) | |
d4f48c1e TT |
4981 | continue; |
4982 | ||
974b36c2 TT |
4983 | if (((sym->domain () == VAR_DOMAIN |
4984 | || sym->domain () == FUNCTION_DOMAIN) | |
4985 | && treg.has_value () | |
4986 | && !treg_matches_sym_type_name (*treg, sym))) | |
4987 | continue; | |
4988 | ||
4989 | if ((kind & SEARCH_VAR_DOMAIN) != 0) | |
d4f48c1e | 4990 | { |
974b36c2 | 4991 | if (sym->aclass () == LOC_UNRESOLVED |
d4f48c1e TT |
4992 | /* LOC_CONST can be used for more than |
4993 | just enums, e.g., c++ static const | |
4994 | members. We only want to skip enums | |
4995 | here. */ | |
974b36c2 TT |
4996 | || (sym->aclass () == LOC_CONST |
4997 | && (sym->type ()->code () == TYPE_CODE_ENUM))) | |
4998 | continue; | |
d4f48c1e | 4999 | } |
974b36c2 TT |
5000 | if (sym->domain () == MODULE_DOMAIN && sym->line () == 0) |
5001 | continue; | |
5002 | ||
5003 | if (result_set->size () < m_max_search_results) | |
f97a63c5 | 5004 | { |
974b36c2 TT |
5005 | /* Match, insert if not already in the results. */ |
5006 | symbol_search ss (block, sym); | |
5007 | if (result_set->find (ss) == result_set->end ()) | |
5008 | result_set->insert (ss); | |
f97a63c5 | 5009 | } |
974b36c2 TT |
5010 | else |
5011 | return false; | |
f97a63c5 AB |
5012 | } |
5013 | } | |
5014 | } | |
c2512106 AB |
5015 | |
5016 | return true; | |
f97a63c5 AB |
5017 | } |
5018 | ||
5019 | /* See symtab.h. */ | |
5020 | ||
c2512106 | 5021 | bool |
f97a63c5 | 5022 | global_symbol_searcher::add_matching_msymbols |
6b09f134 | 5023 | (objfile *objfile, const std::optional<compiled_regex> &preg, |
f97a63c5 AB |
5024 | std::vector<symbol_search> *results) const |
5025 | { | |
c92d4de1 | 5026 | domain_search_flags kind = m_kind; |
f97a63c5 AB |
5027 | |
5028 | for (minimal_symbol *msymbol : objfile->msymbols ()) | |
5029 | { | |
5030 | QUIT; | |
5031 | ||
5032 | if (msymbol->created_by_gdb) | |
5033 | continue; | |
5034 | ||
5035 | if (is_suitable_msymbol (kind, msymbol)) | |
5036 | { | |
5037 | if (!preg.has_value () | |
5038 | || preg->exec (msymbol->natural_name (), 0, | |
5039 | NULL, 0) == 0) | |
5040 | { | |
5041 | /* For functions we can do a quick check of whether the | |
5042 | symbol might be found via find_pc_symtab. */ | |
c92d4de1 | 5043 | if ((kind & SEARCH_FUNCTION_DOMAIN) == 0 |
f97a63c5 | 5044 | || (find_pc_compunit_symtab |
4aeddc50 | 5045 | (msymbol->value_address (objfile)) == NULL)) |
f97a63c5 AB |
5046 | { |
5047 | if (lookup_symbol_in_objfile_from_linkage_name | |
5048 | (objfile, msymbol->linkage_name (), | |
ccf41c24 | 5049 | SEARCH_VFT).symbol == NULL) |
f97a63c5 AB |
5050 | { |
5051 | /* Matching msymbol, add it to the results list. */ | |
c2512106 AB |
5052 | if (results->size () < m_max_search_results) |
5053 | results->emplace_back (GLOBAL_BLOCK, msymbol, objfile); | |
5054 | else | |
5055 | return false; | |
f97a63c5 AB |
5056 | } |
5057 | } | |
5058 | } | |
5059 | } | |
5060 | } | |
12615cba | 5061 | |
c2512106 | 5062 | return true; |
434d2d4f | 5063 | } |
5bd98722 | 5064 | |
470c0b1c | 5065 | /* See symtab.h. */ |
c378eb4e | 5066 | |
b9c04fb2 | 5067 | std::vector<symbol_search> |
470c0b1c | 5068 | global_symbol_searcher::search () const |
c906108c | 5069 | { |
6b09f134 LS |
5070 | std::optional<compiled_regex> preg; |
5071 | std::optional<compiled_regex> treg; | |
c906108c | 5072 | |
470c0b1c | 5073 | if (m_symbol_name_regexp != NULL) |
c906108c | 5074 | { |
470c0b1c | 5075 | const char *symbol_name_regexp = m_symbol_name_regexp; |
9c48a8e6 | 5076 | std::string symbol_name_regexp_holder; |
470c0b1c | 5077 | |
c906108c | 5078 | /* Make sure spacing is right for C++ operators. |
dda83cd7 SM |
5079 | This is just a courtesy to make the matching less sensitive |
5080 | to how many spaces the user leaves between 'operator' | |
5081 | and <TYPENAME> or <OPERATOR>. */ | |
96142726 | 5082 | const char *opend; |
470c0b1c | 5083 | const char *opname = operator_chars (symbol_name_regexp, &opend); |
433759f7 | 5084 | |
c906108c | 5085 | if (*opname) |
c5aa993b | 5086 | { |
3e43a32a | 5087 | int fix = -1; /* -1 means ok; otherwise number of |
dda83cd7 | 5088 | spaces needed. */ |
433759f7 | 5089 | |
c5aa993b JM |
5090 | if (isalpha (*opname) || *opname == '_' || *opname == '$') |
5091 | { | |
c378eb4e | 5092 | /* There should 1 space between 'operator' and 'TYPENAME'. */ |
c5aa993b JM |
5093 | if (opname[-1] != ' ' || opname[-2] == ' ') |
5094 | fix = 1; | |
5095 | } | |
5096 | else | |
5097 | { | |
c378eb4e | 5098 | /* There should 0 spaces between 'operator' and 'OPERATOR'. */ |
c5aa993b JM |
5099 | if (opname[-1] == ' ') |
5100 | fix = 0; | |
5101 | } | |
c378eb4e | 5102 | /* If wrong number of spaces, fix it. */ |
c5aa993b JM |
5103 | if (fix >= 0) |
5104 | { | |
9c48a8e6 SM |
5105 | symbol_name_regexp_holder |
5106 | = string_printf ("operator%.*s%s", fix, " ", opname); | |
5107 | symbol_name_regexp = symbol_name_regexp_holder.c_str (); | |
c5aa993b JM |
5108 | } |
5109 | } | |
5110 | ||
2d7cc5c7 PA |
5111 | int cflags = REG_NOSUB | (case_sensitivity == case_sensitive_off |
5112 | ? REG_ICASE : 0); | |
470c0b1c AB |
5113 | preg.emplace (symbol_name_regexp, cflags, |
5114 | _("Invalid regexp")); | |
c906108c SS |
5115 | } |
5116 | ||
470c0b1c | 5117 | if (m_symbol_type_regexp != NULL) |
12615cba PW |
5118 | { |
5119 | int cflags = REG_NOSUB | (case_sensitivity == case_sensitive_off | |
5120 | ? REG_ICASE : 0); | |
470c0b1c AB |
5121 | treg.emplace (m_symbol_type_regexp, cflags, |
5122 | _("Invalid regexp")); | |
12615cba PW |
5123 | } |
5124 | ||
f97a63c5 | 5125 | bool found_msymbol = false; |
c2512106 | 5126 | std::set<symbol_search> result_set; |
2030c079 | 5127 | for (objfile *objfile : current_program_space->objfiles ()) |
d8aeb77f | 5128 | { |
f97a63c5 AB |
5129 | /* Expand symtabs within objfile that possibly contain matching |
5130 | symbols. */ | |
5131 | found_msymbol |= expand_symtabs (objfile, preg); | |
5132 | ||
c2512106 AB |
5133 | /* Find matching symbols within OBJFILE and add them in to the |
5134 | RESULT_SET set. Use a set here so that we can easily detect | |
5135 | duplicates as we go, and can therefore track how many unique | |
5136 | matches we have found so far. */ | |
5137 | if (!add_matching_symbols (objfile, preg, treg, &result_set)) | |
5138 | break; | |
d8aeb77f | 5139 | } |
c906108c | 5140 | |
c2512106 AB |
5141 | /* Convert the result set into a sorted result list, as std::set is |
5142 | defined to be sorted then no explicit call to std::sort is needed. */ | |
5143 | std::vector<symbol_search> result (result_set.begin (), result_set.end ()); | |
b52109bc | 5144 | |
470c0b1c | 5145 | /* If there are no debug symbols, then add matching minsyms. But if the |
f97a63c5 AB |
5146 | user wants to see symbols matching a type regexp, then never give a |
5147 | minimal symbol, as we assume that a minimal symbol does not have a | |
5148 | type. */ | |
c92d4de1 TT |
5149 | if ((found_msymbol |
5150 | || (filenames.empty () && (m_kind & SEARCH_VAR_DOMAIN) != 0)) | |
470c0b1c | 5151 | && !m_exclude_minsyms |
a8462bbf | 5152 | && !treg.has_value ()) |
c906108c | 5153 | { |
c92d4de1 TT |
5154 | gdb_assert ((m_kind & (SEARCH_VAR_DOMAIN | SEARCH_FUNCTION_DOMAIN)) |
5155 | != 0); | |
2030c079 | 5156 | for (objfile *objfile : current_program_space->objfiles ()) |
c2512106 AB |
5157 | if (!add_matching_msymbols (objfile, preg, &result)) |
5158 | break; | |
c906108c SS |
5159 | } |
5160 | ||
b9c04fb2 | 5161 | return result; |
c906108c SS |
5162 | } |
5163 | ||
5f512a7d | 5164 | /* See symtab.h. */ |
c378eb4e | 5165 | |
5f512a7d | 5166 | std::string |
d4bf9040 | 5167 | symbol_to_info_string (struct symbol *sym, int block) |
c906108c | 5168 | { |
5f512a7d | 5169 | std::string str; |
05cba821 | 5170 | |
5f512a7d | 5171 | gdb_assert (block == GLOBAL_BLOCK || block == STATIC_BLOCK); |
b744723f | 5172 | |
d4bf9040 | 5173 | if (block == STATIC_BLOCK |
974b36c2 TT |
5174 | && (sym->domain () == VAR_DOMAIN |
5175 | || sym->domain () == FUNCTION_DOMAIN)) | |
5f512a7d | 5176 | str += "static "; |
c5aa993b | 5177 | |
c378eb4e | 5178 | /* Typedef that is not a C++ class. */ |
974b36c2 | 5179 | if (sym->domain () == TYPE_DOMAIN) |
eb86c5e2 | 5180 | { |
5f512a7d AB |
5181 | string_file tmp_stream; |
5182 | ||
eb86c5e2 AB |
5183 | /* FIXME: For C (and C++) we end up with a difference in output here |
5184 | between how a typedef is printed, and non-typedefs are printed. | |
5185 | The TYPEDEF_PRINT code places a ";" at the end in an attempt to | |
5186 | appear C-like, while TYPE_PRINT doesn't. | |
5187 | ||
5188 | For the struct printing case below, things are worse, we force | |
5189 | printing of the ";" in this function, which is going to be wrong | |
5190 | for languages that don't require a ";" between statements. */ | |
5f9c5a63 SM |
5191 | if (sym->type ()->code () == TYPE_CODE_TYPEDEF) |
5192 | typedef_print (sym->type (), sym, &tmp_stream); | |
eb86c5e2 | 5193 | else |
5f9c5a63 | 5194 | type_print (sym->type (), "", &tmp_stream, -1); |
5f512a7d | 5195 | str += tmp_stream.string (); |
eb86c5e2 | 5196 | } |
c378eb4e | 5197 | /* variable, func, or typedef-that-is-c++-class. */ |
974b36c2 TT |
5198 | else if (sym->domain () == VAR_DOMAIN || sym->domain () == STRUCT_DOMAIN |
5199 | || sym->domain () == FUNCTION_DOMAIN) | |
c906108c | 5200 | { |
5f512a7d AB |
5201 | string_file tmp_stream; |
5202 | ||
5f9c5a63 | 5203 | type_print (sym->type (), |
66d7f48f | 5204 | (sym->aclass () == LOC_TYPEDEF |
987012b8 | 5205 | ? "" : sym->print_name ()), |
5f512a7d | 5206 | &tmp_stream, 0); |
c906108c | 5207 | |
5f512a7d AB |
5208 | str += tmp_stream.string (); |
5209 | str += ";"; | |
c906108c | 5210 | } |
59c35742 AB |
5211 | /* Printing of modules is currently done here, maybe at some future |
5212 | point we might want a language specific method to print the module | |
5213 | symbol so that we can customise the output more. */ | |
d4bf9040 | 5214 | else if (sym->domain () == MODULE_DOMAIN) |
5f512a7d AB |
5215 | str += sym->print_name (); |
5216 | ||
5217 | return str; | |
5218 | } | |
5219 | ||
d4bf9040 TT |
5220 | /* Helper function for symbol info commands, for example 'info |
5221 | functions', 'info variables', etc. BLOCK is the type of block the | |
5222 | symbols was found in, either GLOBAL_BLOCK or STATIC_BLOCK. SYM is | |
5223 | the symbol we found. If LAST is not NULL, print file and line | |
5224 | number information for the symbol as well. Skip printing the | |
5225 | filename if it matches LAST. */ | |
5f512a7d AB |
5226 | |
5227 | static void | |
d4bf9040 | 5228 | print_symbol_info (struct symbol *sym, int block, const char *last) |
5f512a7d AB |
5229 | { |
5230 | scoped_switch_to_sym_language_if_auto l (sym); | |
4206d69e | 5231 | struct symtab *s = sym->symtab (); |
5f512a7d AB |
5232 | |
5233 | if (last != NULL) | |
5234 | { | |
5235 | const char *s_filename = symtab_to_filename_for_display (s); | |
5236 | ||
5237 | if (filename_cmp (last, s_filename) != 0) | |
5238 | { | |
6cb06a8c TT |
5239 | gdb_printf (_("\nFile %ps:\n"), |
5240 | styled_string (file_name_style.style (), | |
5241 | s_filename)); | |
5f512a7d AB |
5242 | } |
5243 | ||
5d0027b9 | 5244 | if (sym->line () != 0) |
6cb06a8c | 5245 | gdb_printf ("%d:\t", sym->line ()); |
5f512a7d | 5246 | else |
0426ad51 | 5247 | gdb_puts ("\t"); |
5f512a7d AB |
5248 | } |
5249 | ||
d4bf9040 | 5250 | std::string str = symbol_to_info_string (sym, block); |
6cb06a8c | 5251 | gdb_printf ("%s\n", str.c_str ()); |
c906108c SS |
5252 | } |
5253 | ||
5254 | /* This help function for symtab_symbol_info() prints information | |
c378eb4e MS |
5255 | for non-debugging symbols to gdb_stdout. */ |
5256 | ||
c906108c | 5257 | static void |
7c7b6655 | 5258 | print_msymbol_info (struct bound_minimal_symbol msymbol) |
c906108c | 5259 | { |
08feed99 | 5260 | struct gdbarch *gdbarch = msymbol.objfile->arch (); |
523e454f | 5261 | const char *tmp; |
3ac4495a | 5262 | |
d80b854b | 5263 | if (gdbarch_addr_bit (gdbarch) <= 32) |
4aeddc50 | 5264 | tmp = hex_string_custom (msymbol.value_address () |
bb599908 PH |
5265 | & (CORE_ADDR) 0xffffffff, |
5266 | 8); | |
3ac4495a | 5267 | else |
4aeddc50 | 5268 | tmp = hex_string_custom (msymbol.value_address (), |
bb599908 | 5269 | 16); |
6a831f06 PA |
5270 | |
5271 | ui_file_style sym_style = (msymbol.minsym->text_p () | |
5272 | ? function_name_style.style () | |
5273 | : ui_file_style ()); | |
5274 | ||
6cb06a8c TT |
5275 | gdb_printf (_("%ps %ps\n"), |
5276 | styled_string (address_style.style (), tmp), | |
5277 | styled_string (sym_style, msymbol.minsym->print_name ())); | |
c906108c SS |
5278 | } |
5279 | ||
5280 | /* This is the guts of the commands "info functions", "info types", and | |
c378eb4e | 5281 | "info variables". It calls search_symbols to find all matches and then |
c906108c | 5282 | print_[m]symbol_info to print out some useful information about the |
c378eb4e MS |
5283 | matches. */ |
5284 | ||
c906108c | 5285 | static void |
4acfdd20 | 5286 | symtab_symbol_info (bool quiet, bool exclude_minsyms, |
c92d4de1 | 5287 | const char *regexp, domain_enum kind, |
12615cba | 5288 | const char *t_regexp, int from_tty) |
c906108c | 5289 | { |
c7dcbf88 | 5290 | const char *last_filename = ""; |
c906108c SS |
5291 | int first = 1; |
5292 | ||
b16507e0 AB |
5293 | if (regexp != nullptr && *regexp == '\0') |
5294 | regexp = nullptr; | |
5295 | ||
c92d4de1 TT |
5296 | domain_search_flags flags = to_search_flags (kind); |
5297 | if (kind == TYPE_DOMAIN) | |
5298 | flags |= SEARCH_STRUCT_DOMAIN; | |
5299 | ||
5300 | global_symbol_searcher spec (flags, regexp); | |
470c0b1c AB |
5301 | spec.set_symbol_type_regexp (t_regexp); |
5302 | spec.set_exclude_minsyms (exclude_minsyms); | |
5303 | std::vector<symbol_search> symbols = spec.search (); | |
c906108c | 5304 | |
12615cba PW |
5305 | if (!quiet) |
5306 | { | |
c92d4de1 TT |
5307 | const char *classname; |
5308 | switch (kind) | |
5309 | { | |
5310 | case VAR_DOMAIN: | |
5311 | classname = "variable"; | |
5312 | break; | |
5313 | case FUNCTION_DOMAIN: | |
5314 | classname = "function"; | |
5315 | break; | |
5316 | case TYPE_DOMAIN: | |
5317 | classname = "type"; | |
5318 | break; | |
5319 | case MODULE_DOMAIN: | |
5320 | classname = "module"; | |
5321 | break; | |
5322 | default: | |
5323 | gdb_assert_not_reached ("invalid domain enum"); | |
5324 | } | |
5325 | ||
12615cba PW |
5326 | if (regexp != NULL) |
5327 | { | |
5328 | if (t_regexp != NULL) | |
6cb06a8c | 5329 | gdb_printf |
12615cba | 5330 | (_("All %ss matching regular expression \"%s\"" |
0c95f9ed | 5331 | " with type matching regular expression \"%s\":\n"), |
c92d4de1 | 5332 | classname, regexp, t_regexp); |
12615cba | 5333 | else |
6cb06a8c | 5334 | gdb_printf (_("All %ss matching regular expression \"%s\":\n"), |
c92d4de1 | 5335 | classname, regexp); |
12615cba PW |
5336 | } |
5337 | else | |
5338 | { | |
5339 | if (t_regexp != NULL) | |
6cb06a8c | 5340 | gdb_printf |
12615cba | 5341 | (_("All defined %ss" |
0c95f9ed | 5342 | " with type matching regular expression \"%s\" :\n"), |
c92d4de1 | 5343 | classname, t_regexp); |
12615cba | 5344 | else |
c92d4de1 | 5345 | gdb_printf (_("All defined %ss:\n"), classname); |
12615cba PW |
5346 | } |
5347 | } | |
c906108c | 5348 | |
b9c04fb2 | 5349 | for (const symbol_search &p : symbols) |
c906108c SS |
5350 | { |
5351 | QUIT; | |
5352 | ||
b9c04fb2 | 5353 | if (p.msymbol.minsym != NULL) |
c5aa993b JM |
5354 | { |
5355 | if (first) | |
5356 | { | |
12615cba | 5357 | if (!quiet) |
6cb06a8c | 5358 | gdb_printf (_("\nNon-debugging symbols:\n")); |
c5aa993b JM |
5359 | first = 0; |
5360 | } | |
b9c04fb2 | 5361 | print_msymbol_info (p.msymbol); |
c5aa993b | 5362 | } |
c906108c | 5363 | else |
c5aa993b | 5364 | { |
d4bf9040 | 5365 | print_symbol_info (p.symbol, p.block, last_filename); |
d01060f0 | 5366 | last_filename |
4206d69e | 5367 | = symtab_to_filename_for_display (p.symbol->symtab ()); |
c5aa993b | 5368 | } |
c906108c | 5369 | } |
c906108c SS |
5370 | } |
5371 | ||
4acfdd20 AB |
5372 | /* Structure to hold the values of the options used by the 'info variables' |
5373 | and 'info functions' commands. These correspond to the -q, -t, and -n | |
5374 | options. */ | |
5375 | ||
095252be | 5376 | struct info_vars_funcs_options |
4acfdd20 | 5377 | { |
491144b5 CB |
5378 | bool quiet = false; |
5379 | bool exclude_minsyms = false; | |
e0700ba4 | 5380 | std::string type_regexp; |
4acfdd20 AB |
5381 | }; |
5382 | ||
5383 | /* The options used by the 'info variables' and 'info functions' | |
5384 | commands. */ | |
5385 | ||
095252be AT |
5386 | static const gdb::option::option_def info_vars_funcs_options_defs[] = { |
5387 | gdb::option::boolean_option_def<info_vars_funcs_options> { | |
4acfdd20 | 5388 | "q", |
095252be | 5389 | [] (info_vars_funcs_options *opt) { return &opt->quiet; }, |
4acfdd20 AB |
5390 | nullptr, /* show_cmd_cb */ |
5391 | nullptr /* set_doc */ | |
5392 | }, | |
5393 | ||
095252be | 5394 | gdb::option::boolean_option_def<info_vars_funcs_options> { |
4acfdd20 | 5395 | "n", |
095252be | 5396 | [] (info_vars_funcs_options *opt) { return &opt->exclude_minsyms; }, |
4acfdd20 AB |
5397 | nullptr, /* show_cmd_cb */ |
5398 | nullptr /* set_doc */ | |
5399 | }, | |
5400 | ||
095252be | 5401 | gdb::option::string_option_def<info_vars_funcs_options> { |
4acfdd20 | 5402 | "t", |
e0700ba4 | 5403 | [] (info_vars_funcs_options *opt) { return &opt->type_regexp; }, |
4acfdd20 AB |
5404 | nullptr, /* show_cmd_cb */ |
5405 | nullptr /* set_doc */ | |
5406 | } | |
5407 | }; | |
5408 | ||
5409 | /* Returns the option group used by 'info variables' and 'info | |
5410 | functions'. */ | |
5411 | ||
5412 | static gdb::option::option_def_group | |
095252be | 5413 | make_info_vars_funcs_options_def_group (info_vars_funcs_options *opts) |
4acfdd20 | 5414 | { |
095252be | 5415 | return {{info_vars_funcs_options_defs}, opts}; |
4acfdd20 AB |
5416 | } |
5417 | ||
5418 | /* Command completer for 'info variables' and 'info functions'. */ | |
5419 | ||
5420 | static void | |
095252be AT |
5421 | info_vars_funcs_command_completer (struct cmd_list_element *ignore, |
5422 | completion_tracker &tracker, | |
5423 | const char *text, const char * /* word */) | |
4acfdd20 AB |
5424 | { |
5425 | const auto group | |
095252be | 5426 | = make_info_vars_funcs_options_def_group (nullptr); |
4acfdd20 AB |
5427 | if (gdb::option::complete_options |
5428 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
5429 | return; | |
5430 | ||
5431 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
5432 | symbol_completer (ignore, tracker, text, word); | |
5433 | } | |
5434 | ||
b16507e0 AB |
5435 | /* Implement the 'info variables' command. */ |
5436 | ||
0b39b52e | 5437 | static void |
12615cba | 5438 | info_variables_command (const char *args, int from_tty) |
0b39b52e | 5439 | { |
095252be AT |
5440 | info_vars_funcs_options opts; |
5441 | auto grp = make_info_vars_funcs_options_def_group (&opts); | |
4acfdd20 AB |
5442 | gdb::option::process_options |
5443 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5444 | if (args != nullptr && *args == '\0') | |
5445 | args = nullptr; | |
b16507e0 | 5446 | |
e0700ba4 | 5447 | symtab_symbol_info |
c92d4de1 | 5448 | (opts.quiet, opts.exclude_minsyms, args, VAR_DOMAIN, |
e0700ba4 SM |
5449 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), |
5450 | from_tty); | |
0b39b52e TT |
5451 | } |
5452 | ||
b16507e0 | 5453 | /* Implement the 'info functions' command. */ |
12615cba | 5454 | |
c906108c | 5455 | static void |
12615cba | 5456 | info_functions_command (const char *args, int from_tty) |
c906108c | 5457 | { |
095252be AT |
5458 | info_vars_funcs_options opts; |
5459 | ||
5460 | auto grp = make_info_vars_funcs_options_def_group (&opts); | |
4acfdd20 AB |
5461 | gdb::option::process_options |
5462 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5463 | if (args != nullptr && *args == '\0') | |
5464 | args = nullptr; | |
b16507e0 | 5465 | |
e0700ba4 | 5466 | symtab_symbol_info |
c92d4de1 | 5467 | (opts.quiet, opts.exclude_minsyms, args, FUNCTION_DOMAIN, |
e0700ba4 SM |
5468 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), |
5469 | from_tty); | |
c906108c SS |
5470 | } |
5471 | ||
a8eab7c6 AB |
5472 | /* Holds the -q option for the 'info types' command. */ |
5473 | ||
5474 | struct info_types_options | |
5475 | { | |
491144b5 | 5476 | bool quiet = false; |
a8eab7c6 AB |
5477 | }; |
5478 | ||
5479 | /* The options used by the 'info types' command. */ | |
5480 | ||
5481 | static const gdb::option::option_def info_types_options_defs[] = { | |
5482 | gdb::option::boolean_option_def<info_types_options> { | |
5483 | "q", | |
5484 | [] (info_types_options *opt) { return &opt->quiet; }, | |
5485 | nullptr, /* show_cmd_cb */ | |
5486 | nullptr /* set_doc */ | |
5487 | } | |
5488 | }; | |
5489 | ||
5490 | /* Returns the option group used by 'info types'. */ | |
5491 | ||
5492 | static gdb::option::option_def_group | |
5493 | make_info_types_options_def_group (info_types_options *opts) | |
5494 | { | |
5495 | return {{info_types_options_defs}, opts}; | |
5496 | } | |
5497 | ||
5498 | /* Implement the 'info types' command. */ | |
357e46e7 | 5499 | |
c906108c | 5500 | static void |
a8eab7c6 | 5501 | info_types_command (const char *args, int from_tty) |
c906108c | 5502 | { |
a8eab7c6 AB |
5503 | info_types_options opts; |
5504 | ||
5505 | auto grp = make_info_types_options_def_group (&opts); | |
5506 | gdb::option::process_options | |
5507 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5508 | if (args != nullptr && *args == '\0') | |
5509 | args = nullptr; | |
c92d4de1 TT |
5510 | symtab_symbol_info (opts.quiet, false, args, TYPE_DOMAIN, nullptr, |
5511 | from_tty); | |
a8eab7c6 AB |
5512 | } |
5513 | ||
5514 | /* Command completer for 'info types' command. */ | |
5515 | ||
5516 | static void | |
5517 | info_types_command_completer (struct cmd_list_element *ignore, | |
5518 | completion_tracker &tracker, | |
5519 | const char *text, const char * /* word */) | |
5520 | { | |
5521 | const auto group | |
5522 | = make_info_types_options_def_group (nullptr); | |
5523 | if (gdb::option::complete_options | |
5524 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
5525 | return; | |
5526 | ||
5527 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
5528 | symbol_completer (ignore, tracker, text, word); | |
c906108c SS |
5529 | } |
5530 | ||
59c35742 AB |
5531 | /* Implement the 'info modules' command. */ |
5532 | ||
5533 | static void | |
5534 | info_modules_command (const char *args, int from_tty) | |
5535 | { | |
5536 | info_types_options opts; | |
5537 | ||
5538 | auto grp = make_info_types_options_def_group (&opts); | |
5539 | gdb::option::process_options | |
5540 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5541 | if (args != nullptr && *args == '\0') | |
5542 | args = nullptr; | |
c92d4de1 | 5543 | symtab_symbol_info (opts.quiet, true, args, MODULE_DOMAIN, nullptr, |
59c35742 AB |
5544 | from_tty); |
5545 | } | |
5546 | ||
03d83cd5 RB |
5547 | /* Implement the 'info main' command. */ |
5548 | ||
5549 | static void | |
5550 | info_main_command (const char *args, int from_tty) | |
5551 | { | |
5552 | gdb_printf ("%s\n", main_name ()); | |
5553 | } | |
5554 | ||
c906108c | 5555 | static void |
0b39b52e | 5556 | rbreak_command (const char *regexp, int from_tty) |
c906108c | 5557 | { |
c80049d3 | 5558 | std::string string; |
470c0b1c | 5559 | const char *file_name = nullptr; |
c906108c | 5560 | |
470c0b1c | 5561 | if (regexp != nullptr) |
8bd10a10 | 5562 | { |
0b39b52e | 5563 | const char *colon = strchr (regexp, ':'); |
433759f7 | 5564 | |
2c074f49 HD |
5565 | /* Ignore the colon if it is part of a Windows drive. */ |
5566 | if (HAS_DRIVE_SPEC (regexp) | |
5567 | && (regexp[2] == '/' || regexp[2] == '\\')) | |
5568 | colon = strchr (STRIP_DRIVE_SPEC (regexp), ':'); | |
5569 | ||
8bd10a10 CM |
5570 | if (colon && *(colon + 1) != ':') |
5571 | { | |
5572 | int colon_index; | |
96142726 | 5573 | char *local_name; |
8bd10a10 CM |
5574 | |
5575 | colon_index = colon - regexp; | |
224c3ddb | 5576 | local_name = (char *) alloca (colon_index + 1); |
96142726 TT |
5577 | memcpy (local_name, regexp, colon_index); |
5578 | local_name[colon_index--] = 0; | |
5579 | while (isspace (local_name[colon_index])) | |
5580 | local_name[colon_index--] = 0; | |
5581 | file_name = local_name; | |
529480d0 | 5582 | regexp = skip_spaces (colon + 1); |
8bd10a10 CM |
5583 | } |
5584 | } | |
5585 | ||
c92d4de1 | 5586 | global_symbol_searcher spec (SEARCH_FUNCTION_DOMAIN, regexp); |
470c0b1c AB |
5587 | if (file_name != nullptr) |
5588 | spec.filenames.push_back (file_name); | |
5589 | std::vector<symbol_search> symbols = spec.search (); | |
c906108c | 5590 | |
c80049d3 | 5591 | scoped_rbreak_breakpoints finalize; |
b9c04fb2 | 5592 | for (const symbol_search &p : symbols) |
c906108c | 5593 | { |
b9c04fb2 | 5594 | if (p.msymbol.minsym == NULL) |
c5aa993b | 5595 | { |
4206d69e | 5596 | struct symtab *symtab = p.symbol->symtab (); |
d01060f0 | 5597 | const char *fullname = symtab_to_fullname (symtab); |
05cba821 | 5598 | |
c80049d3 | 5599 | string = string_printf ("%s:'%s'", fullname, |
987012b8 | 5600 | p.symbol->linkage_name ()); |
c80049d3 | 5601 | break_command (&string[0], from_tty); |
d4bf9040 | 5602 | print_symbol_info (p.symbol, p.block, nullptr); |
c5aa993b | 5603 | } |
c906108c | 5604 | else |
c5aa993b | 5605 | { |
c80049d3 | 5606 | string = string_printf ("'%s'", |
c9d95fa3 | 5607 | p.msymbol.minsym->linkage_name ()); |
6214f497 | 5608 | |
c80049d3 | 5609 | break_command (&string[0], from_tty); |
6cb06a8c TT |
5610 | gdb_printf ("<function, no debug info> %s;\n", |
5611 | p.msymbol.minsym->print_name ()); | |
c5aa993b | 5612 | } |
c906108c | 5613 | } |
c906108c | 5614 | } |
c906108c | 5615 | \f |
c5aa993b | 5616 | |
c62446b1 | 5617 | /* Evaluate if SYMNAME matches LOOKUP_NAME. */ |
1976171a JK |
5618 | |
5619 | static int | |
c62446b1 | 5620 | compare_symbol_name (const char *symbol_name, language symbol_language, |
b5ec771e | 5621 | const lookup_name_info &lookup_name, |
b5ec771e PA |
5622 | completion_match_result &match_res) |
5623 | { | |
d4c2a405 | 5624 | const language_defn *lang = language_def (symbol_language); |
1976171a | 5625 | |
b5ec771e | 5626 | symbol_name_matcher_ftype *name_match |
c9debfb9 | 5627 | = lang->get_symbol_name_matcher (lookup_name); |
1976171a | 5628 | |
a207cff2 | 5629 | return name_match (symbol_name, lookup_name, &match_res); |
1976171a JK |
5630 | } |
5631 | ||
b5ec771e | 5632 | /* See symtab.h. */ |
c906108c | 5633 | |
e08bd6c5 | 5634 | bool |
eb3ff9a5 | 5635 | completion_list_add_name (completion_tracker &tracker, |
b5ec771e | 5636 | language symbol_language, |
eb3ff9a5 | 5637 | const char *symname, |
b5ec771e | 5638 | const lookup_name_info &lookup_name, |
0d5cff50 | 5639 | const char *text, const char *word) |
c906108c | 5640 | { |
b5ec771e PA |
5641 | completion_match_result &match_res |
5642 | = tracker.reset_completion_match_result (); | |
5643 | ||
c378eb4e | 5644 | /* Clip symbols that cannot match. */ |
c62446b1 | 5645 | if (!compare_symbol_name (symname, symbol_language, lookup_name, match_res)) |
e08bd6c5 | 5646 | return false; |
c906108c | 5647 | |
b5ec771e PA |
5648 | /* Refresh SYMNAME from the match string. It's potentially |
5649 | different depending on language. (E.g., on Ada, the match may be | |
5650 | the encoded symbol name wrapped in "<>"). */ | |
5651 | symname = match_res.match.match (); | |
5652 | gdb_assert (symname != NULL); | |
5653 | ||
c906108c | 5654 | /* We have a match for a completion, so add SYMNAME to the current list |
c378eb4e | 5655 | of matches. Note that the name is moved to freshly malloc'd space. */ |
c906108c SS |
5656 | |
5657 | { | |
60a20c19 PA |
5658 | gdb::unique_xmalloc_ptr<char> completion |
5659 | = make_completion_match_str (symname, text, word); | |
ef0b411a | 5660 | |
a207cff2 PA |
5661 | /* Here we pass the match-for-lcd object to add_completion. Some |
5662 | languages match the user text against substrings of symbol | |
5663 | names in some cases. E.g., in C++, "b push_ba" completes to | |
5664 | "std::vector::push_back", "std::string::push_back", etc., and | |
5665 | in this case we want the completion lowest common denominator | |
5666 | to be "push_back" instead of "std::". */ | |
5667 | tracker.add_completion (std::move (completion), | |
a22ecf70 | 5668 | &match_res.match_for_lcd, text, word); |
c906108c | 5669 | } |
e08bd6c5 PA |
5670 | |
5671 | return true; | |
c906108c SS |
5672 | } |
5673 | ||
6da67eb1 PA |
5674 | /* completion_list_add_name wrapper for struct symbol. */ |
5675 | ||
5676 | static void | |
eb3ff9a5 PA |
5677 | completion_list_add_symbol (completion_tracker &tracker, |
5678 | symbol *sym, | |
b5ec771e | 5679 | const lookup_name_info &lookup_name, |
6da67eb1 PA |
5680 | const char *text, const char *word) |
5681 | { | |
e08bd6c5 PA |
5682 | if (!completion_list_add_name (tracker, sym->language (), |
5683 | sym->natural_name (), | |
5684 | lookup_name, text, word)) | |
5685 | return; | |
19a2740f AB |
5686 | |
5687 | /* C++ function symbols include the parameters within both the msymbol | |
5688 | name and the symbol name. The problem is that the msymbol name will | |
5689 | describe the parameters in the most basic way, with typedefs stripped | |
5690 | out, while the symbol name will represent the types as they appear in | |
5691 | the program. This means we will see duplicate entries in the | |
5692 | completion tracker. The following converts the symbol name back to | |
5693 | the msymbol name and removes the msymbol name from the completion | |
5694 | tracker. */ | |
5695 | if (sym->language () == language_cplus | |
66d7f48f | 5696 | && sym->aclass () == LOC_BLOCK) |
19a2740f AB |
5697 | { |
5698 | /* The call to canonicalize returns the empty string if the input | |
5699 | string is already in canonical form, thanks to this we don't | |
5700 | remove the symbol we just added above. */ | |
596dc4ad | 5701 | gdb::unique_xmalloc_ptr<char> str |
19a2740f | 5702 | = cp_canonicalize_string_no_typedefs (sym->natural_name ()); |
596dc4ad TT |
5703 | if (str != nullptr) |
5704 | tracker.remove_completion (str.get ()); | |
19a2740f | 5705 | } |
6da67eb1 PA |
5706 | } |
5707 | ||
5708 | /* completion_list_add_name wrapper for struct minimal_symbol. */ | |
5709 | ||
5710 | static void | |
eb3ff9a5 PA |
5711 | completion_list_add_msymbol (completion_tracker &tracker, |
5712 | minimal_symbol *sym, | |
b5ec771e | 5713 | const lookup_name_info &lookup_name, |
6da67eb1 PA |
5714 | const char *text, const char *word) |
5715 | { | |
c1b5c1eb | 5716 | completion_list_add_name (tracker, sym->language (), |
c9d95fa3 | 5717 | sym->natural_name (), |
1b026119 | 5718 | lookup_name, text, word); |
6da67eb1 PA |
5719 | } |
5720 | ||
b5ec771e | 5721 | |
69636828 AF |
5722 | /* ObjC: In case we are completing on a selector, look as the msymbol |
5723 | again and feed all the selectors into the mill. */ | |
5724 | ||
5725 | static void | |
eb3ff9a5 PA |
5726 | completion_list_objc_symbol (completion_tracker &tracker, |
5727 | struct minimal_symbol *msymbol, | |
b5ec771e | 5728 | const lookup_name_info &lookup_name, |
0d5cff50 | 5729 | const char *text, const char *word) |
69636828 AF |
5730 | { |
5731 | static char *tmp = NULL; | |
5732 | static unsigned int tmplen = 0; | |
9af17804 | 5733 | |
0d5cff50 | 5734 | const char *method, *category, *selector; |
69636828 | 5735 | char *tmp2 = NULL; |
9af17804 | 5736 | |
c9d95fa3 | 5737 | method = msymbol->natural_name (); |
69636828 AF |
5738 | |
5739 | /* Is it a method? */ | |
5740 | if ((method[0] != '-') && (method[0] != '+')) | |
5741 | return; | |
5742 | ||
1b026119 | 5743 | if (text[0] == '[') |
69636828 | 5744 | /* Complete on shortened method method. */ |
b5ec771e PA |
5745 | completion_list_add_name (tracker, language_objc, |
5746 | method + 1, | |
5747 | lookup_name, | |
1b026119 | 5748 | text, word); |
9af17804 | 5749 | |
69636828 AF |
5750 | while ((strlen (method) + 1) >= tmplen) |
5751 | { | |
5752 | if (tmplen == 0) | |
5753 | tmplen = 1024; | |
5754 | else | |
5755 | tmplen *= 2; | |
224c3ddb | 5756 | tmp = (char *) xrealloc (tmp, tmplen); |
69636828 AF |
5757 | } |
5758 | selector = strchr (method, ' '); | |
5759 | if (selector != NULL) | |
5760 | selector++; | |
9af17804 | 5761 | |
69636828 | 5762 | category = strchr (method, '('); |
9af17804 | 5763 | |
69636828 AF |
5764 | if ((category != NULL) && (selector != NULL)) |
5765 | { | |
5766 | memcpy (tmp, method, (category - method)); | |
5767 | tmp[category - method] = ' '; | |
5768 | memcpy (tmp + (category - method) + 1, selector, strlen (selector) + 1); | |
b5ec771e | 5769 | completion_list_add_name (tracker, language_objc, tmp, |
1b026119 PA |
5770 | lookup_name, text, word); |
5771 | if (text[0] == '[') | |
b5ec771e | 5772 | completion_list_add_name (tracker, language_objc, tmp + 1, |
1b026119 | 5773 | lookup_name, text, word); |
69636828 | 5774 | } |
9af17804 | 5775 | |
69636828 AF |
5776 | if (selector != NULL) |
5777 | { | |
5778 | /* Complete on selector only. */ | |
5779 | strcpy (tmp, selector); | |
5780 | tmp2 = strchr (tmp, ']'); | |
5781 | if (tmp2 != NULL) | |
5782 | *tmp2 = '\0'; | |
9af17804 | 5783 | |
b5ec771e | 5784 | completion_list_add_name (tracker, language_objc, tmp, |
1b026119 | 5785 | lookup_name, text, word); |
69636828 AF |
5786 | } |
5787 | } | |
5788 | ||
5789 | /* Break the non-quoted text based on the characters which are in | |
c378eb4e | 5790 | symbols. FIXME: This should probably be language-specific. */ |
69636828 | 5791 | |
6f937416 PA |
5792 | static const char * |
5793 | language_search_unquoted_string (const char *text, const char *p) | |
69636828 AF |
5794 | { |
5795 | for (; p > text; --p) | |
5796 | { | |
5797 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0') | |
5798 | continue; | |
5799 | else | |
5800 | { | |
5801 | if ((current_language->la_language == language_objc)) | |
5802 | { | |
c378eb4e | 5803 | if (p[-1] == ':') /* Might be part of a method name. */ |
69636828 AF |
5804 | continue; |
5805 | else if (p[-1] == '[' && (p[-2] == '-' || p[-2] == '+')) | |
c378eb4e | 5806 | p -= 2; /* Beginning of a method name. */ |
69636828 | 5807 | else if (p[-1] == ' ' || p[-1] == '(' || p[-1] == ')') |
c378eb4e | 5808 | { /* Might be part of a method name. */ |
6f937416 | 5809 | const char *t = p; |
69636828 AF |
5810 | |
5811 | /* Seeing a ' ' or a '(' is not conclusive evidence | |
5812 | that we are in the middle of a method name. However, | |
5813 | finding "-[" or "+[" should be pretty un-ambiguous. | |
5814 | Unfortunately we have to find it now to decide. */ | |
5815 | ||
5816 | while (t > text) | |
5817 | if (isalnum (t[-1]) || t[-1] == '_' || | |
5818 | t[-1] == ' ' || t[-1] == ':' || | |
5819 | t[-1] == '(' || t[-1] == ')') | |
5820 | --t; | |
5821 | else | |
5822 | break; | |
5823 | ||
5824 | if (t[-1] == '[' && (t[-2] == '-' || t[-2] == '+')) | |
c378eb4e MS |
5825 | p = t - 2; /* Method name detected. */ |
5826 | /* Else we leave with p unchanged. */ | |
69636828 AF |
5827 | } |
5828 | } | |
5829 | break; | |
5830 | } | |
5831 | } | |
5832 | return p; | |
5833 | } | |
5834 | ||
edb3359d | 5835 | static void |
eb3ff9a5 PA |
5836 | completion_list_add_fields (completion_tracker &tracker, |
5837 | struct symbol *sym, | |
b5ec771e | 5838 | const lookup_name_info &lookup_name, |
eb3ff9a5 | 5839 | const char *text, const char *word) |
edb3359d | 5840 | { |
66d7f48f | 5841 | if (sym->aclass () == LOC_TYPEDEF) |
edb3359d | 5842 | { |
5f9c5a63 | 5843 | struct type *t = sym->type (); |
78134374 | 5844 | enum type_code c = t->code (); |
edb3359d DJ |
5845 | int j; |
5846 | ||
5847 | if (c == TYPE_CODE_UNION || c == TYPE_CODE_STRUCT) | |
1f704f76 | 5848 | for (j = TYPE_N_BASECLASSES (t); j < t->num_fields (); j++) |
33d16dd9 | 5849 | if (t->field (j).name ()) |
c1b5c1eb | 5850 | completion_list_add_name (tracker, sym->language (), |
33d16dd9 | 5851 | t->field (j).name (), |
1b026119 | 5852 | lookup_name, text, word); |
edb3359d DJ |
5853 | } |
5854 | } | |
5855 | ||
f9d67a22 PA |
5856 | /* See symtab.h. */ |
5857 | ||
5858 | bool | |
5859 | symbol_is_function_or_method (symbol *sym) | |
5860 | { | |
5f9c5a63 | 5861 | switch (sym->type ()->code ()) |
f9d67a22 PA |
5862 | { |
5863 | case TYPE_CODE_FUNC: | |
5864 | case TYPE_CODE_METHOD: | |
5865 | return true; | |
5866 | default: | |
5867 | return false; | |
5868 | } | |
5869 | } | |
5870 | ||
5871 | /* See symtab.h. */ | |
5872 | ||
5873 | bool | |
5874 | symbol_is_function_or_method (minimal_symbol *msymbol) | |
5875 | { | |
60f62e2b | 5876 | switch (msymbol->type ()) |
f9d67a22 PA |
5877 | { |
5878 | case mst_text: | |
5879 | case mst_text_gnu_ifunc: | |
5880 | case mst_solib_trampoline: | |
5881 | case mst_file_text: | |
5882 | return true; | |
5883 | default: | |
5884 | return false; | |
5885 | } | |
5886 | } | |
5887 | ||
ca31ab1d PA |
5888 | /* See symtab.h. */ |
5889 | ||
5890 | bound_minimal_symbol | |
5891 | find_gnu_ifunc (const symbol *sym) | |
5892 | { | |
66d7f48f | 5893 | if (sym->aclass () != LOC_BLOCK) |
ca31ab1d PA |
5894 | return {}; |
5895 | ||
987012b8 | 5896 | lookup_name_info lookup_name (sym->search_name (), |
ca31ab1d | 5897 | symbol_name_match_type::SEARCH_NAME); |
e19b2d94 | 5898 | struct objfile *objfile = sym->objfile (); |
ca31ab1d | 5899 | |
6395b628 | 5900 | CORE_ADDR address = sym->value_block ()->entry_pc (); |
ca31ab1d PA |
5901 | minimal_symbol *ifunc = NULL; |
5902 | ||
5903 | iterate_over_minimal_symbols (objfile, lookup_name, | |
5904 | [&] (minimal_symbol *minsym) | |
5905 | { | |
60f62e2b SM |
5906 | if (minsym->type () == mst_text_gnu_ifunc |
5907 | || minsym->type () == mst_data_gnu_ifunc) | |
ca31ab1d | 5908 | { |
4aeddc50 | 5909 | CORE_ADDR msym_addr = minsym->value_address (objfile); |
60f62e2b | 5910 | if (minsym->type () == mst_data_gnu_ifunc) |
f50776aa | 5911 | { |
08feed99 | 5912 | struct gdbarch *gdbarch = objfile->arch (); |
328d42d8 SM |
5913 | msym_addr = gdbarch_convert_from_func_ptr_addr |
5914 | (gdbarch, msym_addr, current_inferior ()->top_target ()); | |
f50776aa PA |
5915 | } |
5916 | if (msym_addr == address) | |
5917 | { | |
5918 | ifunc = minsym; | |
5919 | return true; | |
5920 | } | |
ca31ab1d PA |
5921 | } |
5922 | return false; | |
5923 | }); | |
5924 | ||
5925 | if (ifunc != NULL) | |
5926 | return {ifunc, objfile}; | |
5927 | return {}; | |
5928 | } | |
5929 | ||
e11c72c7 GB |
5930 | /* Add matching symbols from SYMTAB to the current completion list. */ |
5931 | ||
5932 | static void | |
5933 | add_symtab_completions (struct compunit_symtab *cust, | |
eb3ff9a5 | 5934 | completion_tracker &tracker, |
f9d67a22 | 5935 | complete_symbol_mode mode, |
b5ec771e | 5936 | const lookup_name_info &lookup_name, |
e11c72c7 GB |
5937 | const char *text, const char *word, |
5938 | enum type_code code) | |
5939 | { | |
e11c72c7 GB |
5940 | int i; |
5941 | ||
ff6fa247 GB |
5942 | if (cust == NULL) |
5943 | return; | |
5944 | ||
e11c72c7 GB |
5945 | for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++) |
5946 | { | |
5947 | QUIT; | |
63d609de SM |
5948 | |
5949 | const struct block *b = cust->blockvector ()->block (i); | |
548a89df | 5950 | for (struct symbol *sym : block_iterator_range (b)) |
e11c72c7 | 5951 | { |
f9d67a22 PA |
5952 | if (completion_skip_symbol (mode, sym)) |
5953 | continue; | |
5954 | ||
e11c72c7 | 5955 | if (code == TYPE_CODE_UNDEF |
6c9c307c | 5956 | || (sym->domain () == STRUCT_DOMAIN |
5f9c5a63 | 5957 | && sym->type ()->code () == code)) |
eb3ff9a5 | 5958 | completion_list_add_symbol (tracker, sym, |
b5ec771e | 5959 | lookup_name, |
e11c72c7 GB |
5960 | text, word); |
5961 | } | |
5962 | } | |
5963 | } | |
5964 | ||
eb3ff9a5 PA |
5965 | void |
5966 | default_collect_symbol_completion_matches_break_on | |
b5ec771e PA |
5967 | (completion_tracker &tracker, complete_symbol_mode mode, |
5968 | symbol_name_match_type name_match_type, | |
eb3ff9a5 PA |
5969 | const char *text, const char *word, |
5970 | const char *break_on, enum type_code code) | |
c906108c | 5971 | { |
41d27058 JB |
5972 | /* Problem: All of the symbols have to be copied because readline |
5973 | frees them. I'm not going to worry about this; hopefully there | |
5974 | won't be that many. */ | |
5975 | ||
3977b71f | 5976 | const struct block *b; |
edb3359d | 5977 | const struct block *surrounding_static_block, *surrounding_global_block; |
c906108c | 5978 | /* The symbol we are completing on. Points in same buffer as text. */ |
6f937416 | 5979 | const char *sym_text; |
c906108c | 5980 | |
41d27058 | 5981 | /* Now look for the symbol we are supposed to complete on. */ |
c6756f62 PA |
5982 | if (mode == complete_symbol_mode::LINESPEC) |
5983 | sym_text = text; | |
5984 | else | |
01add95b SM |
5985 | { |
5986 | const char *p; | |
5987 | char quote_found; | |
5988 | const char *quote_pos = NULL; | |
c906108c | 5989 | |
01add95b SM |
5990 | /* First see if this is a quoted string. */ |
5991 | quote_found = '\0'; | |
5992 | for (p = text; *p != '\0'; ++p) | |
5993 | { | |
5994 | if (quote_found != '\0') | |
5995 | { | |
5996 | if (*p == quote_found) | |
5997 | /* Found close quote. */ | |
5998 | quote_found = '\0'; | |
5999 | else if (*p == '\\' && p[1] == quote_found) | |
6000 | /* A backslash followed by the quote character | |
6001 | doesn't end the string. */ | |
6002 | ++p; | |
6003 | } | |
6004 | else if (*p == '\'' || *p == '"') | |
6005 | { | |
6006 | quote_found = *p; | |
6007 | quote_pos = p; | |
6008 | } | |
6009 | } | |
6010 | if (quote_found == '\'') | |
6011 | /* A string within single quotes can be a symbol, so complete on it. */ | |
6012 | sym_text = quote_pos + 1; | |
6013 | else if (quote_found == '"') | |
6014 | /* A double-quoted string is never a symbol, nor does it make sense | |
6015 | to complete it any other way. */ | |
6016 | { | |
6017 | return; | |
6018 | } | |
6019 | else | |
6020 | { | |
6021 | /* It is not a quoted string. Break it based on the characters | |
6022 | which are in symbols. */ | |
6023 | while (p > text) | |
6024 | { | |
6025 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0' | |
6026 | || p[-1] == ':' || strchr (break_on, p[-1]) != NULL) | |
6027 | --p; | |
6028 | else | |
6029 | break; | |
6030 | } | |
6031 | sym_text = p; | |
6032 | } | |
6033 | } | |
c906108c | 6034 | |
1b026119 | 6035 | lookup_name_info lookup_name (sym_text, name_match_type, true); |
b5ec771e | 6036 | |
c906108c SS |
6037 | /* At this point scan through the misc symbol vectors and add each |
6038 | symbol you find to the list. Eventually we want to ignore | |
6039 | anything that isn't a text symbol (everything else will be | |
e11c72c7 | 6040 | handled by the psymtab code below). */ |
c906108c | 6041 | |
2f68a895 TT |
6042 | if (code == TYPE_CODE_UNDEF) |
6043 | { | |
2030c079 | 6044 | for (objfile *objfile : current_program_space->objfiles ()) |
2f68a895 | 6045 | { |
7932255d | 6046 | for (minimal_symbol *msymbol : objfile->msymbols ()) |
5325b9bf TT |
6047 | { |
6048 | QUIT; | |
9af17804 | 6049 | |
5325b9bf TT |
6050 | if (completion_skip_symbol (mode, msymbol)) |
6051 | continue; | |
f9d67a22 | 6052 | |
5325b9bf TT |
6053 | completion_list_add_msymbol (tracker, msymbol, lookup_name, |
6054 | sym_text, word); | |
eb3ff9a5 | 6055 | |
5325b9bf TT |
6056 | completion_list_objc_symbol (tracker, msymbol, lookup_name, |
6057 | sym_text, word); | |
6058 | } | |
2f68a895 TT |
6059 | } |
6060 | } | |
c906108c | 6061 | |
e11c72c7 | 6062 | /* Add completions for all currently loaded symbol tables. */ |
2030c079 | 6063 | for (objfile *objfile : current_program_space->objfiles ()) |
d8aeb77f | 6064 | { |
b669c953 | 6065 | for (compunit_symtab *cust : objfile->compunits ()) |
d8aeb77f TT |
6066 | add_symtab_completions (cust, tracker, mode, lookup_name, |
6067 | sym_text, word, code); | |
6068 | } | |
e11c72c7 | 6069 | |
14bc53a8 PA |
6070 | /* Look through the partial symtabs for all symbols which begin by |
6071 | matching SYM_TEXT. Expand all CUs that you find to the list. */ | |
6072 | expand_symtabs_matching (NULL, | |
b5ec771e PA |
6073 | lookup_name, |
6074 | NULL, | |
14bc53a8 PA |
6075 | [&] (compunit_symtab *symtab) /* expansion notify */ |
6076 | { | |
6077 | add_symtab_completions (symtab, | |
f9d67a22 | 6078 | tracker, mode, lookup_name, |
1b026119 | 6079 | sym_text, word, code); |
df35e626 | 6080 | return true; |
14bc53a8 | 6081 | }, |
03a8ea51 | 6082 | SEARCH_GLOBAL_BLOCK | SEARCH_STATIC_BLOCK, |
f214edce | 6083 | SEARCH_ALL_DOMAINS); |
e11c72c7 | 6084 | |
c906108c | 6085 | /* Search upwards from currently selected frame (so that we can |
edb3359d DJ |
6086 | complete on local vars). Also catch fields of types defined in |
6087 | this places which match our text string. Only complete on types | |
c378eb4e | 6088 | visible from current context. */ |
edb3359d DJ |
6089 | |
6090 | b = get_selected_block (0); | |
d24e14a0 TT |
6091 | surrounding_static_block = b == nullptr ? nullptr : b->static_block (); |
6092 | surrounding_global_block = b == nullptr ? nullptr : b->global_block (); | |
edb3359d DJ |
6093 | if (surrounding_static_block != NULL) |
6094 | while (b != surrounding_static_block) | |
6095 | { | |
6096 | QUIT; | |
c906108c | 6097 | |
548a89df | 6098 | for (struct symbol *sym : block_iterator_range (b)) |
edb3359d | 6099 | { |
2f68a895 TT |
6100 | if (code == TYPE_CODE_UNDEF) |
6101 | { | |
b5ec771e | 6102 | completion_list_add_symbol (tracker, sym, lookup_name, |
1b026119 | 6103 | sym_text, word); |
b5ec771e | 6104 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 6105 | sym_text, word); |
2f68a895 | 6106 | } |
6c9c307c | 6107 | else if (sym->domain () == STRUCT_DOMAIN |
5f9c5a63 | 6108 | && sym->type ()->code () == code) |
b5ec771e | 6109 | completion_list_add_symbol (tracker, sym, lookup_name, |
1b026119 | 6110 | sym_text, word); |
edb3359d | 6111 | } |
c5aa993b | 6112 | |
edb3359d DJ |
6113 | /* Stop when we encounter an enclosing function. Do not stop for |
6114 | non-inlined functions - the locals of the enclosing function | |
6115 | are in scope for a nested function. */ | |
a4dfe747 | 6116 | if (b->function () != NULL && b->inlined_p ()) |
edb3359d | 6117 | break; |
f135fe72 | 6118 | b = b->superblock (); |
edb3359d | 6119 | } |
c906108c | 6120 | |
edb3359d | 6121 | /* Add fields from the file's types; symbols will be added below. */ |
c906108c | 6122 | |
2f68a895 TT |
6123 | if (code == TYPE_CODE_UNDEF) |
6124 | { | |
6125 | if (surrounding_static_block != NULL) | |
548a89df | 6126 | for (struct symbol *sym : block_iterator_range (surrounding_static_block)) |
b5ec771e | 6127 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 6128 | sym_text, word); |
edb3359d | 6129 | |
2f68a895 | 6130 | if (surrounding_global_block != NULL) |
548a89df | 6131 | for (struct symbol *sym : block_iterator_range (surrounding_global_block)) |
b5ec771e | 6132 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 6133 | sym_text, word); |
2f68a895 | 6134 | } |
c906108c | 6135 | |
2f68a895 TT |
6136 | /* Skip macros if we are completing a struct tag -- arguable but |
6137 | usually what is expected. */ | |
1ac14a04 | 6138 | if (current_language->macro_expansion () == macro_expansion_c |
2f68a895 | 6139 | && code == TYPE_CODE_UNDEF) |
9a044a89 | 6140 | { |
f6c2623e | 6141 | gdb::unique_xmalloc_ptr<struct macro_scope> scope; |
9a044a89 | 6142 | |
14bc53a8 PA |
6143 | /* This adds a macro's name to the current completion list. */ |
6144 | auto add_macro_name = [&] (const char *macro_name, | |
6145 | const macro_definition *, | |
6146 | macro_source_file *, | |
6147 | int) | |
6148 | { | |
1b026119 PA |
6149 | completion_list_add_name (tracker, language_c, macro_name, |
6150 | lookup_name, sym_text, word); | |
14bc53a8 PA |
6151 | }; |
6152 | ||
9a044a89 TT |
6153 | /* Add any macros visible in the default scope. Note that this |
6154 | may yield the occasional wrong result, because an expression | |
6155 | might be evaluated in a scope other than the default. For | |
6156 | example, if the user types "break file:line if <TAB>", the | |
6157 | resulting expression will be evaluated at "file:line" -- but | |
6158 | at there does not seem to be a way to detect this at | |
6159 | completion time. */ | |
6160 | scope = default_macro_scope (); | |
6161 | if (scope) | |
f6c2623e TT |
6162 | macro_for_each_in_scope (scope->file, scope->line, |
6163 | add_macro_name); | |
9a044a89 TT |
6164 | |
6165 | /* User-defined macros are always visible. */ | |
14bc53a8 | 6166 | macro_for_each (macro_user_macros, add_macro_name); |
9a044a89 | 6167 | } |
ef0b411a GB |
6168 | } |
6169 | ||
eb3ff9a5 PA |
6170 | /* Collect all symbols (regardless of class) which begin by matching |
6171 | TEXT. */ | |
41d27058 | 6172 | |
eb3ff9a5 PA |
6173 | void |
6174 | collect_symbol_completion_matches (completion_tracker &tracker, | |
c6756f62 | 6175 | complete_symbol_mode mode, |
b5ec771e | 6176 | symbol_name_match_type name_match_type, |
eb3ff9a5 | 6177 | const char *text, const char *word) |
41d27058 | 6178 | { |
7e56227d AB |
6179 | current_language->collect_symbol_completion_matches (tracker, mode, |
6180 | name_match_type, | |
6181 | text, word, | |
6182 | TYPE_CODE_UNDEF); | |
2f68a895 TT |
6183 | } |
6184 | ||
eb3ff9a5 PA |
6185 | /* Like collect_symbol_completion_matches, but only collect |
6186 | STRUCT_DOMAIN symbols whose type code is CODE. */ | |
2f68a895 | 6187 | |
eb3ff9a5 PA |
6188 | void |
6189 | collect_symbol_completion_matches_type (completion_tracker &tracker, | |
6190 | const char *text, const char *word, | |
6191 | enum type_code code) | |
2f68a895 | 6192 | { |
c6756f62 | 6193 | complete_symbol_mode mode = complete_symbol_mode::EXPRESSION; |
b5ec771e | 6194 | symbol_name_match_type name_match_type = symbol_name_match_type::EXPRESSION; |
c6756f62 | 6195 | |
2f68a895 TT |
6196 | gdb_assert (code == TYPE_CODE_UNION |
6197 | || code == TYPE_CODE_STRUCT | |
2f68a895 | 6198 | || code == TYPE_CODE_ENUM); |
7e56227d AB |
6199 | current_language->collect_symbol_completion_matches (tracker, mode, |
6200 | name_match_type, | |
6201 | text, word, code); | |
41d27058 JB |
6202 | } |
6203 | ||
eb3ff9a5 PA |
6204 | /* Like collect_symbol_completion_matches, but collects a list of |
6205 | symbols defined in all source files named SRCFILE. */ | |
c94fdfd0 | 6206 | |
eb3ff9a5 PA |
6207 | void |
6208 | collect_file_symbol_completion_matches (completion_tracker &tracker, | |
c6756f62 | 6209 | complete_symbol_mode mode, |
b5ec771e | 6210 | symbol_name_match_type name_match_type, |
eb3ff9a5 PA |
6211 | const char *text, const char *word, |
6212 | const char *srcfile) | |
c94fdfd0 | 6213 | { |
c94fdfd0 | 6214 | /* The symbol we are completing on. Points in same buffer as text. */ |
6f937416 | 6215 | const char *sym_text; |
c94fdfd0 EZ |
6216 | |
6217 | /* Now look for the symbol we are supposed to complete on. | |
6218 | FIXME: This should be language-specific. */ | |
c6756f62 PA |
6219 | if (mode == complete_symbol_mode::LINESPEC) |
6220 | sym_text = text; | |
6221 | else | |
01add95b SM |
6222 | { |
6223 | const char *p; | |
6224 | char quote_found; | |
6225 | const char *quote_pos = NULL; | |
c94fdfd0 | 6226 | |
01add95b SM |
6227 | /* First see if this is a quoted string. */ |
6228 | quote_found = '\0'; | |
6229 | for (p = text; *p != '\0'; ++p) | |
6230 | { | |
6231 | if (quote_found != '\0') | |
6232 | { | |
6233 | if (*p == quote_found) | |
6234 | /* Found close quote. */ | |
6235 | quote_found = '\0'; | |
6236 | else if (*p == '\\' && p[1] == quote_found) | |
6237 | /* A backslash followed by the quote character | |
6238 | doesn't end the string. */ | |
6239 | ++p; | |
6240 | } | |
6241 | else if (*p == '\'' || *p == '"') | |
6242 | { | |
6243 | quote_found = *p; | |
6244 | quote_pos = p; | |
6245 | } | |
6246 | } | |
6247 | if (quote_found == '\'') | |
6248 | /* A string within single quotes can be a symbol, so complete on it. */ | |
6249 | sym_text = quote_pos + 1; | |
6250 | else if (quote_found == '"') | |
6251 | /* A double-quoted string is never a symbol, nor does it make sense | |
6252 | to complete it any other way. */ | |
6253 | { | |
6254 | return; | |
6255 | } | |
6256 | else | |
6257 | { | |
6258 | /* Not a quoted string. */ | |
6259 | sym_text = language_search_unquoted_string (text, p); | |
6260 | } | |
6261 | } | |
c94fdfd0 | 6262 | |
1b026119 | 6263 | lookup_name_info lookup_name (sym_text, name_match_type, true); |
b5ec771e | 6264 | |
8f14146e PA |
6265 | /* Go through symtabs for SRCFILE and check the externs and statics |
6266 | for symbols which match. */ | |
6267 | iterate_over_symtabs (srcfile, [&] (symtab *s) | |
c94fdfd0 | 6268 | { |
c6159652 | 6269 | add_symtab_completions (s->compunit (), |
f9d67a22 | 6270 | tracker, mode, lookup_name, |
1b026119 | 6271 | sym_text, word, TYPE_CODE_UNDEF); |
8f14146e PA |
6272 | return false; |
6273 | }); | |
e27852be DE |
6274 | } |
6275 | ||
c94fdfd0 EZ |
6276 | /* A helper function for make_source_files_completion_list. It adds |
6277 | another file name to a list of possible completions, growing the | |
6278 | list as necessary. */ | |
6279 | ||
6280 | static void | |
6f937416 | 6281 | add_filename_to_list (const char *fname, const char *text, const char *word, |
eb3ff9a5 | 6282 | completion_list *list) |
c94fdfd0 | 6283 | { |
60a20c19 | 6284 | list->emplace_back (make_completion_match_str (fname, text, word)); |
c94fdfd0 EZ |
6285 | } |
6286 | ||
6287 | static int | |
6288 | not_interesting_fname (const char *fname) | |
6289 | { | |
6290 | static const char *illegal_aliens[] = { | |
6291 | "_globals_", /* inserted by coff_symtab_read */ | |
6292 | NULL | |
6293 | }; | |
6294 | int i; | |
6295 | ||
6296 | for (i = 0; illegal_aliens[i]; i++) | |
6297 | { | |
0ba1096a | 6298 | if (filename_cmp (fname, illegal_aliens[i]) == 0) |
c94fdfd0 EZ |
6299 | return 1; |
6300 | } | |
6301 | return 0; | |
6302 | } | |
6303 | ||
f4655dee | 6304 | /* An object of this type is passed as the callback argument to |
ccefe4c4 TT |
6305 | map_partial_symbol_filenames. */ |
6306 | struct add_partial_filename_data | |
6307 | { | |
9fdc877b | 6308 | struct filename_seen_cache *filename_seen_cache; |
6f937416 PA |
6309 | const char *text; |
6310 | const char *word; | |
ccefe4c4 | 6311 | int text_len; |
eb3ff9a5 | 6312 | completion_list *list; |
f4655dee TT |
6313 | |
6314 | void operator() (const char *filename, const char *fullname); | |
ccefe4c4 TT |
6315 | }; |
6316 | ||
6317 | /* A callback for map_partial_symbol_filenames. */ | |
eca864fe | 6318 | |
f4655dee TT |
6319 | void |
6320 | add_partial_filename_data::operator() (const char *filename, | |
6321 | const char *fullname) | |
ccefe4c4 | 6322 | { |
ccefe4c4 TT |
6323 | if (not_interesting_fname (filename)) |
6324 | return; | |
f4655dee TT |
6325 | if (!filename_seen_cache->seen (filename) |
6326 | && filename_ncmp (filename, text, text_len) == 0) | |
ccefe4c4 TT |
6327 | { |
6328 | /* This file matches for a completion; add it to the | |
6329 | current list of matches. */ | |
f4655dee | 6330 | add_filename_to_list (filename, text, word, list); |
ccefe4c4 TT |
6331 | } |
6332 | else | |
6333 | { | |
6334 | const char *base_name = lbasename (filename); | |
433759f7 | 6335 | |
ccefe4c4 | 6336 | if (base_name != filename |
f4655dee TT |
6337 | && !filename_seen_cache->seen (base_name) |
6338 | && filename_ncmp (base_name, text, text_len) == 0) | |
6339 | add_filename_to_list (base_name, text, word, list); | |
ccefe4c4 TT |
6340 | } |
6341 | } | |
6342 | ||
eb3ff9a5 | 6343 | /* Return a list of all source files whose names begin with matching |
49c4e619 | 6344 | TEXT. The file names are looked up in the symbol tables of this |
eb3ff9a5 | 6345 | program. */ |
c94fdfd0 | 6346 | |
eb3ff9a5 | 6347 | completion_list |
6f937416 | 6348 | make_source_files_completion_list (const char *text, const char *word) |
c94fdfd0 | 6349 | { |
c94fdfd0 | 6350 | size_t text_len = strlen (text); |
eb3ff9a5 | 6351 | completion_list list; |
31889e00 | 6352 | const char *base_name; |
ccefe4c4 | 6353 | struct add_partial_filename_data datum; |
c94fdfd0 | 6354 | |
c94fdfd0 EZ |
6355 | if (!have_full_symbols () && !have_partial_symbols ()) |
6356 | return list; | |
6357 | ||
bbf2f4df | 6358 | filename_seen_cache filenames_seen; |
9fdc877b | 6359 | |
2030c079 | 6360 | for (objfile *objfile : current_program_space->objfiles ()) |
c94fdfd0 | 6361 | { |
b669c953 | 6362 | for (compunit_symtab *cu : objfile->compunits ()) |
c94fdfd0 | 6363 | { |
102cc235 | 6364 | for (symtab *s : cu->filetabs ()) |
8b31193a TT |
6365 | { |
6366 | if (not_interesting_fname (s->filename)) | |
6367 | continue; | |
6368 | if (!filenames_seen.seen (s->filename) | |
6369 | && filename_ncmp (s->filename, text, text_len) == 0) | |
6370 | { | |
6371 | /* This file matches for a completion; add it to the current | |
6372 | list of matches. */ | |
6373 | add_filename_to_list (s->filename, text, word, &list); | |
6374 | } | |
6375 | else | |
6376 | { | |
6377 | /* NOTE: We allow the user to type a base name when the | |
6378 | debug info records leading directories, but not the other | |
6379 | way around. This is what subroutines of breakpoint | |
6380 | command do when they parse file names. */ | |
6381 | base_name = lbasename (s->filename); | |
6382 | if (base_name != s->filename | |
6383 | && !filenames_seen.seen (base_name) | |
6384 | && filename_ncmp (base_name, text, text_len) == 0) | |
6385 | add_filename_to_list (base_name, text, word, &list); | |
6386 | } | |
6387 | } | |
c94fdfd0 EZ |
6388 | } |
6389 | } | |
6390 | ||
bbf2f4df | 6391 | datum.filename_seen_cache = &filenames_seen; |
ccefe4c4 TT |
6392 | datum.text = text; |
6393 | datum.word = word; | |
6394 | datum.text_len = text_len; | |
6395 | datum.list = &list; | |
f4655dee | 6396 | map_symbol_filenames (datum, false /*need_fullname*/); |
9fdc877b | 6397 | |
c94fdfd0 EZ |
6398 | return list; |
6399 | } | |
c906108c | 6400 | \f |
51cc5b07 | 6401 | /* Track MAIN */ |
32ac0d11 TT |
6402 | |
6403 | /* Return the "main_info" object for the current program space. If | |
6404 | the object has not yet been created, create it and fill in some | |
6405 | default values. */ | |
6406 | ||
a49d37f3 SM |
6407 | static main_info * |
6408 | get_main_info (program_space *pspace) | |
32ac0d11 | 6409 | { |
a49d37f3 | 6410 | main_info *info = main_progspace_key.get (pspace); |
32ac0d11 TT |
6411 | |
6412 | if (info == NULL) | |
6413 | { | |
3d548a53 TT |
6414 | /* It may seem strange to store the main name in the progspace |
6415 | and also in whatever objfile happens to see a main name in | |
6416 | its debug info. The reason for this is mainly historical: | |
6417 | gdb returned "main" as the name even if no function named | |
6418 | "main" was defined the program; and this approach lets us | |
6419 | keep compatibility. */ | |
a49d37f3 | 6420 | info = main_progspace_key.emplace (pspace); |
32ac0d11 TT |
6421 | } |
6422 | ||
6423 | return info; | |
6424 | } | |
6425 | ||
3d548a53 | 6426 | static void |
a49d37f3 | 6427 | set_main_name (program_space *pspace, const char *name, enum language lang) |
51cc5b07 | 6428 | { |
a49d37f3 | 6429 | main_info *info = get_main_info (pspace); |
32ac0d11 | 6430 | |
25eb2931 | 6431 | if (!info->name_of_main.empty ()) |
51cc5b07 | 6432 | { |
25eb2931 | 6433 | info->name_of_main.clear (); |
32ac0d11 | 6434 | info->language_of_main = language_unknown; |
51cc5b07 AC |
6435 | } |
6436 | if (name != NULL) | |
6437 | { | |
25eb2931 | 6438 | info->name_of_main = name; |
32ac0d11 | 6439 | info->language_of_main = lang; |
51cc5b07 AC |
6440 | } |
6441 | } | |
6442 | ||
ea53e89f JB |
6443 | /* Deduce the name of the main procedure, and set NAME_OF_MAIN |
6444 | accordingly. */ | |
6445 | ||
6446 | static void | |
6447 | find_main_name (void) | |
6448 | { | |
cd6c7346 | 6449 | const char *new_main_name; |
a49d37f3 | 6450 | program_space *pspace = current_program_space; |
3d548a53 TT |
6451 | |
6452 | /* First check the objfiles to see whether a debuginfo reader has | |
6453 | picked up the appropriate main name. Historically the main name | |
6454 | was found in a more or less random way; this approach instead | |
6455 | relies on the order of objfile creation -- which still isn't | |
6456 | guaranteed to get the correct answer, but is just probably more | |
6457 | accurate. */ | |
2030c079 | 6458 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 | 6459 | { |
4ea870ef TT |
6460 | objfile->compute_main_name (); |
6461 | ||
aed57c53 TT |
6462 | if (objfile->per_bfd->name_of_main != NULL) |
6463 | { | |
a49d37f3 SM |
6464 | set_main_name (pspace, |
6465 | objfile->per_bfd->name_of_main, | |
aed57c53 TT |
6466 | objfile->per_bfd->language_of_main); |
6467 | return; | |
6468 | } | |
6469 | } | |
ea53e89f JB |
6470 | |
6471 | /* Try to see if the main procedure is in Ada. */ | |
6472 | /* FIXME: brobecker/2005-03-07: Another way of doing this would | |
6473 | be to add a new method in the language vector, and call this | |
6474 | method for each language until one of them returns a non-empty | |
6475 | name. This would allow us to remove this hard-coded call to | |
6476 | an Ada function. It is not clear that this is a better approach | |
6477 | at this point, because all methods need to be written in a way | |
c378eb4e | 6478 | such that false positives never be returned. For instance, it is |
ea53e89f JB |
6479 | important that a method does not return a wrong name for the main |
6480 | procedure if the main procedure is actually written in a different | |
6481 | language. It is easy to guaranty this with Ada, since we use a | |
6482 | special symbol generated only when the main in Ada to find the name | |
c378eb4e | 6483 | of the main procedure. It is difficult however to see how this can |
ea53e89f JB |
6484 | be guarantied for languages such as C, for instance. This suggests |
6485 | that order of call for these methods becomes important, which means | |
6486 | a more complicated approach. */ | |
6487 | new_main_name = ada_main_name (); | |
6488 | if (new_main_name != NULL) | |
9af17804 | 6489 | { |
a49d37f3 | 6490 | set_main_name (pspace, new_main_name, language_ada); |
ea53e89f JB |
6491 | return; |
6492 | } | |
6493 | ||
63778547 IB |
6494 | new_main_name = d_main_name (); |
6495 | if (new_main_name != NULL) | |
6496 | { | |
a49d37f3 | 6497 | set_main_name (pspace, new_main_name, language_d); |
63778547 IB |
6498 | return; |
6499 | } | |
6500 | ||
a766d390 DE |
6501 | new_main_name = go_main_name (); |
6502 | if (new_main_name != NULL) | |
6503 | { | |
a49d37f3 | 6504 | set_main_name (pspace, new_main_name, language_go); |
a766d390 DE |
6505 | return; |
6506 | } | |
6507 | ||
cd6c7346 PM |
6508 | new_main_name = pascal_main_name (); |
6509 | if (new_main_name != NULL) | |
9af17804 | 6510 | { |
a49d37f3 | 6511 | set_main_name (pspace, new_main_name, language_pascal); |
cd6c7346 PM |
6512 | return; |
6513 | } | |
6514 | ||
ea53e89f JB |
6515 | /* The languages above didn't identify the name of the main procedure. |
6516 | Fallback to "main". */ | |
d3214198 TV |
6517 | |
6518 | /* Try to find language for main in psymtabs. */ | |
531bd038 MM |
6519 | bool symbol_found_p = false; |
6520 | gdbarch_iterate_over_objfiles_in_search_order | |
99d9c3b9 | 6521 | (current_inferior ()->arch (), |
a49d37f3 | 6522 | [&symbol_found_p, pspace] (objfile *obj) |
531bd038 MM |
6523 | { |
6524 | language lang | |
b63eb1f3 TT |
6525 | = obj->lookup_global_symbol_language ("main", |
6526 | SEARCH_FUNCTION_DOMAIN, | |
531bd038 MM |
6527 | &symbol_found_p); |
6528 | if (symbol_found_p) | |
6529 | { | |
a49d37f3 | 6530 | set_main_name (pspace, "main", lang); |
531bd038 MM |
6531 | return 1; |
6532 | } | |
6533 | ||
6534 | return 0; | |
6535 | }, nullptr); | |
6536 | ||
6537 | if (symbol_found_p) | |
6538 | return; | |
d3214198 | 6539 | |
a49d37f3 | 6540 | set_main_name (pspace, "main", language_unknown); |
ea53e89f JB |
6541 | } |
6542 | ||
cd215b2e TT |
6543 | /* See symtab.h. */ |
6544 | ||
6545 | const char * | |
6546 | main_name () | |
51cc5b07 | 6547 | { |
a49d37f3 | 6548 | main_info *info = get_main_info (current_program_space); |
32ac0d11 | 6549 | |
25eb2931 | 6550 | if (info->name_of_main.empty ()) |
ea53e89f JB |
6551 | find_main_name (); |
6552 | ||
25eb2931 | 6553 | return info->name_of_main.c_str (); |
51cc5b07 AC |
6554 | } |
6555 | ||
9e6c82ad TT |
6556 | /* Return the language of the main function. If it is not known, |
6557 | return language_unknown. */ | |
6558 | ||
6559 | enum language | |
6560 | main_language (void) | |
6561 | { | |
a49d37f3 | 6562 | main_info *info = get_main_info (current_program_space); |
32ac0d11 | 6563 | |
25eb2931 | 6564 | if (info->name_of_main.empty ()) |
32ac0d11 TT |
6565 | find_main_name (); |
6566 | ||
6567 | return info->language_of_main; | |
9e6c82ad TT |
6568 | } |
6569 | ||
a6c727b2 DJ |
6570 | /* Return 1 if the supplied producer string matches the ARM RealView |
6571 | compiler (armcc). */ | |
6572 | ||
ececd218 | 6573 | bool |
a6c727b2 DJ |
6574 | producer_is_realview (const char *producer) |
6575 | { | |
6576 | static const char *const arm_idents[] = { | |
6577 | "ARM C Compiler, ADS", | |
6578 | "Thumb C Compiler, ADS", | |
6579 | "ARM C++ Compiler, ADS", | |
6580 | "Thumb C++ Compiler, ADS", | |
6581 | "ARM/Thumb C/C++ Compiler, RVCT", | |
6582 | "ARM C/C++ Compiler, RVCT" | |
6583 | }; | |
a6c727b2 DJ |
6584 | |
6585 | if (producer == NULL) | |
ececd218 | 6586 | return false; |
a6c727b2 | 6587 | |
696d6f4d TT |
6588 | for (const char *ident : arm_idents) |
6589 | if (startswith (producer, ident)) | |
ececd218 | 6590 | return true; |
a6c727b2 | 6591 | |
ececd218 | 6592 | return false; |
a6c727b2 | 6593 | } |
ed0616c6 | 6594 | |
f1e6e072 TT |
6595 | \f |
6596 | ||
6597 | /* The next index to hand out in response to a registration request. */ | |
6598 | ||
6599 | static int next_aclass_value = LOC_FINAL_VALUE; | |
6600 | ||
6601 | /* The maximum number of "aclass" registrations we support. This is | |
6602 | constant for convenience. */ | |
658d5e0c | 6603 | #define MAX_SYMBOL_IMPLS (LOC_FINAL_VALUE + 11) |
f1e6e072 TT |
6604 | |
6605 | /* The objects representing the various "aclass" values. The elements | |
6606 | from 0 up to LOC_FINAL_VALUE-1 represent themselves, and subsequent | |
6607 | elements are those registered at gdb initialization time. */ | |
6608 | ||
6609 | static struct symbol_impl symbol_impl[MAX_SYMBOL_IMPLS]; | |
6610 | ||
6611 | /* The globally visible pointer. This is separate from 'symbol_impl' | |
6612 | so that it can be const. */ | |
6613 | ||
6bc3c5b4 | 6614 | gdb::array_view<const struct symbol_impl> symbol_impls (symbol_impl); |
f1e6e072 TT |
6615 | |
6616 | /* Make sure we saved enough room in struct symbol. */ | |
6617 | ||
69f6730d | 6618 | static_assert (MAX_SYMBOL_IMPLS <= (1 << SYMBOL_ACLASS_BITS)); |
f1e6e072 TT |
6619 | |
6620 | /* Register a computed symbol type. ACLASS must be LOC_COMPUTED. OPS | |
6621 | is the ops vector associated with this index. This returns the new | |
6622 | index, which should be used as the aclass_index field for symbols | |
6623 | of this type. */ | |
6624 | ||
6625 | int | |
6626 | register_symbol_computed_impl (enum address_class aclass, | |
6627 | const struct symbol_computed_ops *ops) | |
6628 | { | |
6629 | int result = next_aclass_value++; | |
6630 | ||
6631 | gdb_assert (aclass == LOC_COMPUTED); | |
6632 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6633 | symbol_impl[result].aclass = aclass; | |
6634 | symbol_impl[result].ops_computed = ops; | |
6635 | ||
24d6c2a0 TT |
6636 | /* Sanity check OPS. */ |
6637 | gdb_assert (ops != NULL); | |
6638 | gdb_assert (ops->tracepoint_var_ref != NULL); | |
6639 | gdb_assert (ops->describe_location != NULL); | |
0b31a4bc | 6640 | gdb_assert (ops->get_symbol_read_needs != NULL); |
24d6c2a0 TT |
6641 | gdb_assert (ops->read_variable != NULL); |
6642 | ||
f1e6e072 TT |
6643 | return result; |
6644 | } | |
6645 | ||
6646 | /* Register a function with frame base type. ACLASS must be LOC_BLOCK. | |
6647 | OPS is the ops vector associated with this index. This returns the | |
6648 | new index, which should be used as the aclass_index field for symbols | |
6649 | of this type. */ | |
6650 | ||
6651 | int | |
6652 | register_symbol_block_impl (enum address_class aclass, | |
6653 | const struct symbol_block_ops *ops) | |
6654 | { | |
6655 | int result = next_aclass_value++; | |
6656 | ||
6657 | gdb_assert (aclass == LOC_BLOCK); | |
6658 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6659 | symbol_impl[result].aclass = aclass; | |
6660 | symbol_impl[result].ops_block = ops; | |
6661 | ||
6662 | /* Sanity check OPS. */ | |
6663 | gdb_assert (ops != NULL); | |
36ed3d84 TT |
6664 | gdb_assert (ops->find_frame_base_location != nullptr |
6665 | || ops->get_block_value != nullptr); | |
f1e6e072 TT |
6666 | |
6667 | return result; | |
6668 | } | |
6669 | ||
6670 | /* Register a register symbol type. ACLASS must be LOC_REGISTER or | |
6671 | LOC_REGPARM_ADDR. OPS is the register ops vector associated with | |
6672 | this index. This returns the new index, which should be used as | |
6673 | the aclass_index field for symbols of this type. */ | |
6674 | ||
6675 | int | |
6676 | register_symbol_register_impl (enum address_class aclass, | |
6677 | const struct symbol_register_ops *ops) | |
6678 | { | |
6679 | int result = next_aclass_value++; | |
6680 | ||
6681 | gdb_assert (aclass == LOC_REGISTER || aclass == LOC_REGPARM_ADDR); | |
6682 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6683 | symbol_impl[result].aclass = aclass; | |
6684 | symbol_impl[result].ops_register = ops; | |
6685 | ||
6686 | return result; | |
6687 | } | |
6688 | ||
6689 | /* Initialize elements of 'symbol_impl' for the constants in enum | |
6690 | address_class. */ | |
6691 | ||
6692 | static void | |
6693 | initialize_ordinary_address_classes (void) | |
6694 | { | |
6695 | int i; | |
6696 | ||
6697 | for (i = 0; i < LOC_FINAL_VALUE; ++i) | |
aead7601 | 6698 | symbol_impl[i].aclass = (enum address_class) i; |
f1e6e072 TT |
6699 | } |
6700 | ||
6701 | \f | |
6702 | ||
08be3fe3 DE |
6703 | /* See symtab.h. */ |
6704 | ||
6705 | struct objfile * | |
e19b2d94 | 6706 | symbol::objfile () const |
08be3fe3 | 6707 | { |
e19b2d94 TT |
6708 | gdb_assert (is_objfile_owned ()); |
6709 | return owner.symtab->compunit ()->objfile (); | |
08be3fe3 DE |
6710 | } |
6711 | ||
6712 | /* See symtab.h. */ | |
6713 | ||
6714 | struct gdbarch * | |
bcd6845e | 6715 | symbol::arch () const |
08be3fe3 | 6716 | { |
bcd6845e TT |
6717 | if (!is_objfile_owned ()) |
6718 | return owner.arch; | |
6719 | return owner.symtab->compunit ()->objfile ()->arch (); | |
08be3fe3 DE |
6720 | } |
6721 | ||
6722 | /* See symtab.h. */ | |
6723 | ||
6724 | struct symtab * | |
4206d69e | 6725 | symbol::symtab () const |
08be3fe3 | 6726 | { |
4206d69e TT |
6727 | gdb_assert (is_objfile_owned ()); |
6728 | return owner.symtab; | |
08be3fe3 DE |
6729 | } |
6730 | ||
6731 | /* See symtab.h. */ | |
6732 | ||
6733 | void | |
4206d69e | 6734 | symbol::set_symtab (struct symtab *symtab) |
08be3fe3 | 6735 | { |
4206d69e TT |
6736 | gdb_assert (is_objfile_owned ()); |
6737 | owner.symtab = symtab; | |
08be3fe3 DE |
6738 | } |
6739 | ||
4b610737 TT |
6740 | /* See symtab.h. */ |
6741 | ||
6742 | CORE_ADDR | |
f9b96f67 | 6743 | symbol::get_maybe_copied_address () const |
4b610737 | 6744 | { |
f9b96f67 SM |
6745 | gdb_assert (this->maybe_copied); |
6746 | gdb_assert (this->aclass () == LOC_STATIC); | |
4b610737 | 6747 | |
f9b96f67 | 6748 | const char *linkage_name = this->linkage_name (); |
47ef0ac7 TT |
6749 | bound_minimal_symbol minsym = lookup_minimal_symbol_linkage (linkage_name, |
6750 | false); | |
6751 | if (minsym.minsym != nullptr) | |
6752 | return minsym.value_address (); | |
f9b96f67 | 6753 | return this->m_value.address; |
4b610737 TT |
6754 | } |
6755 | ||
6756 | /* See symtab.h. */ | |
6757 | ||
6758 | CORE_ADDR | |
23e6f781 | 6759 | minimal_symbol::get_maybe_copied_address (objfile *objf) const |
4b610737 | 6760 | { |
23e6f781 | 6761 | gdb_assert (this->maybe_copied (objf)); |
4b610737 TT |
6762 | gdb_assert ((objf->flags & OBJF_MAINLINE) == 0); |
6763 | ||
23e6f781 | 6764 | const char *linkage_name = this->linkage_name (); |
47ef0ac7 TT |
6765 | bound_minimal_symbol found = lookup_minimal_symbol_linkage (linkage_name, |
6766 | true); | |
6767 | if (found.minsym != nullptr) | |
6768 | return found.value_address (); | |
23e6f781 SM |
6769 | return (this->m_value.address |
6770 | + objf->section_offsets[this->section_index ()]); | |
4b610737 TT |
6771 | } |
6772 | ||
e623cf5d TT |
6773 | \f |
6774 | ||
165f8965 AB |
6775 | /* Hold the sub-commands of 'info module'. */ |
6776 | ||
6777 | static struct cmd_list_element *info_module_cmdlist = NULL; | |
6778 | ||
165f8965 AB |
6779 | /* See symtab.h. */ |
6780 | ||
6781 | std::vector<module_symbol_search> | |
6782 | search_module_symbols (const char *module_regexp, const char *regexp, | |
c92d4de1 | 6783 | const char *type_regexp, domain_search_flags kind) |
165f8965 AB |
6784 | { |
6785 | std::vector<module_symbol_search> results; | |
6786 | ||
6787 | /* Search for all modules matching MODULE_REGEXP. */ | |
c92d4de1 | 6788 | global_symbol_searcher spec1 (SEARCH_MODULE_DOMAIN, module_regexp); |
470c0b1c AB |
6789 | spec1.set_exclude_minsyms (true); |
6790 | std::vector<symbol_search> modules = spec1.search (); | |
165f8965 AB |
6791 | |
6792 | /* Now search for all symbols of the required KIND matching the required | |
6793 | regular expressions. We figure out which ones are in which modules | |
6794 | below. */ | |
470c0b1c AB |
6795 | global_symbol_searcher spec2 (kind, regexp); |
6796 | spec2.set_symbol_type_regexp (type_regexp); | |
6797 | spec2.set_exclude_minsyms (true); | |
6798 | std::vector<symbol_search> symbols = spec2.search (); | |
165f8965 AB |
6799 | |
6800 | /* Now iterate over all MODULES, checking to see which items from | |
6801 | SYMBOLS are in each module. */ | |
6802 | for (const symbol_search &p : modules) | |
6803 | { | |
6804 | QUIT; | |
6805 | ||
6806 | /* This is a module. */ | |
6807 | gdb_assert (p.symbol != nullptr); | |
6808 | ||
987012b8 | 6809 | std::string prefix = p.symbol->print_name (); |
165f8965 AB |
6810 | prefix += "::"; |
6811 | ||
6812 | for (const symbol_search &q : symbols) | |
6813 | { | |
6814 | if (q.symbol == nullptr) | |
6815 | continue; | |
6816 | ||
987012b8 | 6817 | if (strncmp (q.symbol->print_name (), prefix.c_str (), |
165f8965 AB |
6818 | prefix.size ()) != 0) |
6819 | continue; | |
6820 | ||
6821 | results.push_back ({p, q}); | |
6822 | } | |
6823 | } | |
6824 | ||
6825 | return results; | |
6826 | } | |
6827 | ||
6828 | /* Implement the core of both 'info module functions' and 'info module | |
6829 | variables'. */ | |
6830 | ||
6831 | static void | |
6832 | info_module_subcommand (bool quiet, const char *module_regexp, | |
6833 | const char *regexp, const char *type_regexp, | |
c92d4de1 | 6834 | domain_search_flags kind) |
165f8965 | 6835 | { |
c92d4de1 TT |
6836 | gdb_assert (kind == SEARCH_FUNCTION_DOMAIN || kind == SEARCH_VAR_DOMAIN); |
6837 | ||
165f8965 AB |
6838 | /* Print a header line. Don't build the header line bit by bit as this |
6839 | prevents internationalisation. */ | |
6840 | if (!quiet) | |
6841 | { | |
6842 | if (module_regexp == nullptr) | |
6843 | { | |
6844 | if (type_regexp == nullptr) | |
6845 | { | |
6846 | if (regexp == nullptr) | |
c92d4de1 | 6847 | gdb_printf ((kind == SEARCH_VAR_DOMAIN |
6cb06a8c TT |
6848 | ? _("All variables in all modules:") |
6849 | : _("All functions in all modules:"))); | |
165f8965 | 6850 | else |
6cb06a8c | 6851 | gdb_printf |
c92d4de1 | 6852 | ((kind == SEARCH_VAR_DOMAIN |
165f8965 AB |
6853 | ? _("All variables matching regular expression" |
6854 | " \"%s\" in all modules:") | |
6855 | : _("All functions matching regular expression" | |
6856 | " \"%s\" in all modules:")), | |
6857 | regexp); | |
6858 | } | |
6859 | else | |
6860 | { | |
6861 | if (regexp == nullptr) | |
6cb06a8c | 6862 | gdb_printf |
c92d4de1 | 6863 | ((kind == SEARCH_VAR_DOMAIN |
165f8965 AB |
6864 | ? _("All variables with type matching regular " |
6865 | "expression \"%s\" in all modules:") | |
6866 | : _("All functions with type matching regular " | |
6867 | "expression \"%s\" in all modules:")), | |
6868 | type_regexp); | |
6869 | else | |
6cb06a8c | 6870 | gdb_printf |
c92d4de1 | 6871 | ((kind == SEARCH_VAR_DOMAIN |
165f8965 AB |
6872 | ? _("All variables matching regular expression " |
6873 | "\"%s\",\n\twith type matching regular " | |
6874 | "expression \"%s\" in all modules:") | |
6875 | : _("All functions matching regular expression " | |
6876 | "\"%s\",\n\twith type matching regular " | |
6877 | "expression \"%s\" in all modules:")), | |
6878 | regexp, type_regexp); | |
6879 | } | |
6880 | } | |
6881 | else | |
6882 | { | |
6883 | if (type_regexp == nullptr) | |
6884 | { | |
6885 | if (regexp == nullptr) | |
6cb06a8c | 6886 | gdb_printf |
c92d4de1 | 6887 | ((kind == SEARCH_VAR_DOMAIN |
165f8965 AB |
6888 | ? _("All variables in all modules matching regular " |
6889 | "expression \"%s\":") | |
6890 | : _("All functions in all modules matching regular " | |
6891 | "expression \"%s\":")), | |
6892 | module_regexp); | |
6893 | else | |
6cb06a8c | 6894 | gdb_printf |
c92d4de1 | 6895 | ((kind == SEARCH_VAR_DOMAIN |
165f8965 AB |
6896 | ? _("All variables matching regular expression " |
6897 | "\"%s\",\n\tin all modules matching regular " | |
6898 | "expression \"%s\":") | |
6899 | : _("All functions matching regular expression " | |
6900 | "\"%s\",\n\tin all modules matching regular " | |
6901 | "expression \"%s\":")), | |
6902 | regexp, module_regexp); | |
6903 | } | |
6904 | else | |
6905 | { | |
6906 | if (regexp == nullptr) | |
6cb06a8c | 6907 | gdb_printf |
c92d4de1 | 6908 | ((kind == SEARCH_VAR_DOMAIN |
165f8965 AB |
6909 | ? _("All variables with type matching regular " |
6910 | "expression \"%s\"\n\tin all modules matching " | |
6911 | "regular expression \"%s\":") | |
6912 | : _("All functions with type matching regular " | |
6913 | "expression \"%s\"\n\tin all modules matching " | |
6914 | "regular expression \"%s\":")), | |
6915 | type_regexp, module_regexp); | |
6916 | else | |
6cb06a8c | 6917 | gdb_printf |
c92d4de1 | 6918 | ((kind == SEARCH_VAR_DOMAIN |
165f8965 AB |
6919 | ? _("All variables matching regular expression " |
6920 | "\"%s\",\n\twith type matching regular expression " | |
6921 | "\"%s\",\n\tin all modules matching regular " | |
6922 | "expression \"%s\":") | |
6923 | : _("All functions matching regular expression " | |
6924 | "\"%s\",\n\twith type matching regular expression " | |
6925 | "\"%s\",\n\tin all modules matching regular " | |
6926 | "expression \"%s\":")), | |
6927 | regexp, type_regexp, module_regexp); | |
6928 | } | |
6929 | } | |
6cb06a8c | 6930 | gdb_printf ("\n"); |
165f8965 AB |
6931 | } |
6932 | ||
6933 | /* Find all symbols of type KIND matching the given regular expressions | |
6934 | along with the symbols for the modules in which those symbols | |
6935 | reside. */ | |
6936 | std::vector<module_symbol_search> module_symbols | |
6937 | = search_module_symbols (module_regexp, regexp, type_regexp, kind); | |
6938 | ||
6939 | std::sort (module_symbols.begin (), module_symbols.end (), | |
6940 | [] (const module_symbol_search &a, const module_symbol_search &b) | |
6941 | { | |
6942 | if (a.first < b.first) | |
6943 | return true; | |
6944 | else if (a.first == b.first) | |
6945 | return a.second < b.second; | |
6946 | else | |
6947 | return false; | |
6948 | }); | |
6949 | ||
6950 | const char *last_filename = ""; | |
6951 | const symbol *last_module_symbol = nullptr; | |
6952 | for (const module_symbol_search &ms : module_symbols) | |
6953 | { | |
6954 | const symbol_search &p = ms.first; | |
6955 | const symbol_search &q = ms.second; | |
6956 | ||
6957 | gdb_assert (q.symbol != nullptr); | |
6958 | ||
6959 | if (last_module_symbol != p.symbol) | |
6960 | { | |
6cb06a8c TT |
6961 | gdb_printf ("\n"); |
6962 | gdb_printf (_("Module \"%s\":\n"), p.symbol->print_name ()); | |
165f8965 AB |
6963 | last_module_symbol = p.symbol; |
6964 | last_filename = ""; | |
6965 | } | |
6966 | ||
d4bf9040 | 6967 | print_symbol_info (q.symbol, q.block, last_filename); |
165f8965 | 6968 | last_filename |
4206d69e | 6969 | = symtab_to_filename_for_display (q.symbol->symtab ()); |
165f8965 AB |
6970 | } |
6971 | } | |
6972 | ||
6973 | /* Hold the option values for the 'info module .....' sub-commands. */ | |
6974 | ||
6975 | struct info_modules_var_func_options | |
6976 | { | |
6977 | bool quiet = false; | |
e0700ba4 SM |
6978 | std::string type_regexp; |
6979 | std::string module_regexp; | |
165f8965 AB |
6980 | }; |
6981 | ||
6982 | /* The options used by 'info module variables' and 'info module functions' | |
6983 | commands. */ | |
6984 | ||
6985 | static const gdb::option::option_def info_modules_var_func_options_defs [] = { | |
6986 | gdb::option::boolean_option_def<info_modules_var_func_options> { | |
6987 | "q", | |
6988 | [] (info_modules_var_func_options *opt) { return &opt->quiet; }, | |
6989 | nullptr, /* show_cmd_cb */ | |
6990 | nullptr /* set_doc */ | |
6991 | }, | |
6992 | ||
6993 | gdb::option::string_option_def<info_modules_var_func_options> { | |
6994 | "t", | |
6995 | [] (info_modules_var_func_options *opt) { return &opt->type_regexp; }, | |
6996 | nullptr, /* show_cmd_cb */ | |
6997 | nullptr /* set_doc */ | |
6998 | }, | |
6999 | ||
7000 | gdb::option::string_option_def<info_modules_var_func_options> { | |
7001 | "m", | |
7002 | [] (info_modules_var_func_options *opt) { return &opt->module_regexp; }, | |
7003 | nullptr, /* show_cmd_cb */ | |
7004 | nullptr /* set_doc */ | |
7005 | } | |
7006 | }; | |
7007 | ||
7008 | /* Return the option group used by the 'info module ...' sub-commands. */ | |
7009 | ||
7010 | static inline gdb::option::option_def_group | |
7011 | make_info_modules_var_func_options_def_group | |
7012 | (info_modules_var_func_options *opts) | |
7013 | { | |
7014 | return {{info_modules_var_func_options_defs}, opts}; | |
7015 | } | |
7016 | ||
7017 | /* Implements the 'info module functions' command. */ | |
7018 | ||
7019 | static void | |
7020 | info_module_functions_command (const char *args, int from_tty) | |
7021 | { | |
7022 | info_modules_var_func_options opts; | |
7023 | auto grp = make_info_modules_var_func_options_def_group (&opts); | |
7024 | gdb::option::process_options | |
7025 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
7026 | if (args != nullptr && *args == '\0') | |
7027 | args = nullptr; | |
7028 | ||
e0700ba4 SM |
7029 | info_module_subcommand |
7030 | (opts.quiet, | |
7031 | opts.module_regexp.empty () ? nullptr : opts.module_regexp.c_str (), args, | |
7032 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
c92d4de1 | 7033 | SEARCH_FUNCTION_DOMAIN); |
165f8965 AB |
7034 | } |
7035 | ||
7036 | /* Implements the 'info module variables' command. */ | |
7037 | ||
7038 | static void | |
7039 | info_module_variables_command (const char *args, int from_tty) | |
7040 | { | |
7041 | info_modules_var_func_options opts; | |
7042 | auto grp = make_info_modules_var_func_options_def_group (&opts); | |
7043 | gdb::option::process_options | |
7044 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
7045 | if (args != nullptr && *args == '\0') | |
7046 | args = nullptr; | |
7047 | ||
e0700ba4 SM |
7048 | info_module_subcommand |
7049 | (opts.quiet, | |
7050 | opts.module_regexp.empty () ? nullptr : opts.module_regexp.c_str (), args, | |
7051 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
c92d4de1 | 7052 | SEARCH_VAR_DOMAIN); |
165f8965 AB |
7053 | } |
7054 | ||
7055 | /* Command completer for 'info module ...' sub-commands. */ | |
7056 | ||
7057 | static void | |
7058 | info_module_var_func_command_completer (struct cmd_list_element *ignore, | |
7059 | completion_tracker &tracker, | |
7060 | const char *text, | |
7061 | const char * /* word */) | |
7062 | { | |
7063 | ||
7064 | const auto group = make_info_modules_var_func_options_def_group (nullptr); | |
7065 | if (gdb::option::complete_options | |
7066 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
7067 | return; | |
7068 | ||
7069 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
7070 | symbol_completer (ignore, tracker, text, word); | |
7071 | } | |
7072 | ||
7073 | \f | |
7074 | ||
6c265988 | 7075 | void _initialize_symtab (); |
c906108c | 7076 | void |
6c265988 | 7077 | _initialize_symtab () |
c906108c | 7078 | { |
60cfcb20 AB |
7079 | cmd_list_element *c; |
7080 | ||
f1e6e072 TT |
7081 | initialize_ordinary_address_classes (); |
7082 | ||
60cfcb20 AB |
7083 | c = add_info ("variables", info_variables_command, |
7084 | info_print_args_help (_("\ | |
12615cba | 7085 | All global and static variable names or those matching REGEXPs.\n\ |
4acfdd20 | 7086 | Usage: info variables [-q] [-n] [-t TYPEREGEXP] [NAMEREGEXP]\n\ |
12615cba | 7087 | Prints the global and static variables.\n"), |
4acfdd20 AB |
7088 | _("global and static variables"), |
7089 | true)); | |
095252be | 7090 | set_cmd_completer_handle_brkchars (c, info_vars_funcs_command_completer); |
c906108c | 7091 | |
60cfcb20 AB |
7092 | c = add_info ("functions", info_functions_command, |
7093 | info_print_args_help (_("\ | |
12615cba | 7094 | All function names or those matching REGEXPs.\n\ |
4acfdd20 | 7095 | Usage: info functions [-q] [-n] [-t TYPEREGEXP] [NAMEREGEXP]\n\ |
12615cba | 7096 | Prints the functions.\n"), |
4acfdd20 AB |
7097 | _("functions"), |
7098 | true)); | |
095252be | 7099 | set_cmd_completer_handle_brkchars (c, info_vars_funcs_command_completer); |
c906108c | 7100 | |
a8eab7c6 AB |
7101 | c = add_info ("types", info_types_command, _("\ |
7102 | All type names, or those matching REGEXP.\n\ | |
7103 | Usage: info types [-q] [REGEXP]\n\ | |
7104 | Print information about all types matching REGEXP, or all types if no\n\ | |
7105 | REGEXP is given. The optional flag -q disables printing of headers.")); | |
7106 | set_cmd_completer_handle_brkchars (c, info_types_command_completer); | |
c906108c | 7107 | |
0e350a05 AB |
7108 | const auto info_sources_opts |
7109 | = make_info_sources_options_def_group (nullptr); | |
28cd9371 PW |
7110 | |
7111 | static std::string info_sources_help | |
7112 | = gdb::option::build_help (_("\ | |
7113 | All source files in the program or those matching REGEXP.\n\ | |
7114 | Usage: info sources [OPTION]... [REGEXP]\n\ | |
7115 | By default, REGEXP is used to match anywhere in the filename.\n\ | |
7116 | \n\ | |
7117 | Options:\n\ | |
7118 | %OPTIONS%"), | |
7119 | info_sources_opts); | |
7120 | ||
7121 | c = add_info ("sources", info_sources_command, info_sources_help.c_str ()); | |
7122 | set_cmd_completer_handle_brkchars (c, info_sources_command_completer); | |
c906108c | 7123 | |
59c35742 AB |
7124 | c = add_info ("modules", info_modules_command, |
7125 | _("All module names, or those matching REGEXP.")); | |
7126 | set_cmd_completer_handle_brkchars (c, info_types_command_completer); | |
7127 | ||
03d83cd5 RB |
7128 | add_info ("main", info_main_command, |
7129 | _("Get main symbol to identify entry point into program.")); | |
7130 | ||
0743fc83 | 7131 | add_basic_prefix_cmd ("module", class_info, _("\ |
165f8965 | 7132 | Print information about modules."), |
2f822da5 | 7133 | &info_module_cmdlist, 0, &infolist); |
165f8965 AB |
7134 | |
7135 | c = add_cmd ("functions", class_info, info_module_functions_command, _("\ | |
7136 | Display functions arranged by modules.\n\ | |
7137 | Usage: info module functions [-q] [-m MODREGEXP] [-t TYPEREGEXP] [REGEXP]\n\ | |
7138 | Print a summary of all functions within each Fortran module, grouped by\n\ | |
7139 | module and file. For each function the line on which the function is\n\ | |
7140 | defined is given along with the type signature and name of the function.\n\ | |
7141 | \n\ | |
7142 | If REGEXP is provided then only functions whose name matches REGEXP are\n\ | |
7143 | listed. If MODREGEXP is provided then only functions in modules matching\n\ | |
7144 | MODREGEXP are listed. If TYPEREGEXP is given then only functions whose\n\ | |
7145 | type signature matches TYPEREGEXP are listed.\n\ | |
7146 | \n\ | |
7147 | The -q flag suppresses printing some header information."), | |
7148 | &info_module_cmdlist); | |
7149 | set_cmd_completer_handle_brkchars | |
7150 | (c, info_module_var_func_command_completer); | |
7151 | ||
7152 | c = add_cmd ("variables", class_info, info_module_variables_command, _("\ | |
7153 | Display variables arranged by modules.\n\ | |
7154 | Usage: info module variables [-q] [-m MODREGEXP] [-t TYPEREGEXP] [REGEXP]\n\ | |
7155 | Print a summary of all variables within each Fortran module, grouped by\n\ | |
7156 | module and file. For each variable the line on which the variable is\n\ | |
7157 | defined is given along with the type and name of the variable.\n\ | |
7158 | \n\ | |
7159 | If REGEXP is provided then only variables whose name matches REGEXP are\n\ | |
7160 | listed. If MODREGEXP is provided then only variables in modules matching\n\ | |
7161 | MODREGEXP are listed. If TYPEREGEXP is given then only variables whose\n\ | |
7162 | type matches TYPEREGEXP are listed.\n\ | |
7163 | \n\ | |
7164 | The -q flag suppresses printing some header information."), | |
7165 | &info_module_cmdlist); | |
7166 | set_cmd_completer_handle_brkchars | |
7167 | (c, info_module_var_func_command_completer); | |
7168 | ||
c906108c | 7169 | add_com ("rbreak", class_breakpoint, rbreak_command, |
1bedd215 | 7170 | _("Set a breakpoint for all functions matching REGEXP.")); |
c906108c | 7171 | |
717d2f5a | 7172 | add_setshow_enum_cmd ("multiple-symbols", no_class, |
dda83cd7 SM |
7173 | multiple_symbols_modes, &multiple_symbols_mode, |
7174 | _("\ | |
590042fc | 7175 | Set how the debugger handles ambiguities in expressions."), _("\ |
717d2f5a JB |
7176 | Show how the debugger handles ambiguities in expressions."), _("\ |
7177 | Valid values are \"ask\", \"all\", \"cancel\", and the default is \"all\"."), | |
dda83cd7 | 7178 | NULL, NULL, &setlist, &showlist); |
717d2f5a | 7179 | |
c011a4f4 DE |
7180 | add_setshow_boolean_cmd ("basenames-may-differ", class_obscure, |
7181 | &basenames_may_differ, _("\ | |
7182 | Set whether a source file may have multiple base names."), _("\ | |
7183 | Show whether a source file may have multiple base names."), _("\ | |
7184 | (A \"base name\" is the name of a file with the directory part removed.\n\ | |
7185 | Example: The base name of \"/home/user/hello.c\" is \"hello.c\".)\n\ | |
7186 | If set, GDB will canonicalize file names (e.g., expand symlinks)\n\ | |
7187 | before comparing them. Canonicalization is an expensive operation,\n\ | |
7188 | but it allows the same file be known by more than one base name.\n\ | |
7189 | If not set (the default), all source files are assumed to have just\n\ | |
7190 | one base name, and gdb will do file name comparisons more efficiently."), | |
7191 | NULL, NULL, | |
7192 | &setlist, &showlist); | |
7193 | ||
db0fec5c DE |
7194 | add_setshow_zuinteger_cmd ("symtab-create", no_class, &symtab_create_debug, |
7195 | _("Set debugging of symbol table creation."), | |
7196 | _("Show debugging of symbol table creation."), _("\ | |
7197 | When enabled (non-zero), debugging messages are printed when building\n\ | |
7198 | symbol tables. A value of 1 (one) normally provides enough information.\n\ | |
7199 | A value greater than 1 provides more verbose information."), | |
7200 | NULL, | |
7201 | NULL, | |
7202 | &setdebuglist, &showdebuglist); | |
45cfd468 | 7203 | |
cc485e62 DE |
7204 | add_setshow_zuinteger_cmd ("symbol-lookup", no_class, &symbol_lookup_debug, |
7205 | _("\ | |
7206 | Set debugging of symbol lookup."), _("\ | |
7207 | Show debugging of symbol lookup."), _("\ | |
7208 | When enabled (non-zero), symbol lookups are logged."), | |
7209 | NULL, NULL, | |
7210 | &setdebuglist, &showdebuglist); | |
7211 | ||
f57d2163 DE |
7212 | add_setshow_zuinteger_cmd ("symbol-cache-size", no_class, |
7213 | &new_symbol_cache_size, | |
7214 | _("Set the size of the symbol cache."), | |
7215 | _("Show the size of the symbol cache."), _("\ | |
7216 | The size of the symbol cache.\n\ | |
7217 | If zero then the symbol cache is disabled."), | |
7218 | set_symbol_cache_size_handler, NULL, | |
7219 | &maintenance_set_cmdlist, | |
7220 | &maintenance_show_cmdlist); | |
7221 | ||
6109f7a3 LS |
7222 | add_setshow_boolean_cmd ("ignore-prologue-end-flag", no_class, |
7223 | &ignore_prologue_end_flag, | |
7224 | _("Set if the PROLOGUE-END flag is ignored."), | |
7225 | _("Show if the PROLOGUE-END flag is ignored."), | |
7226 | _("\ | |
7227 | The PROLOGUE-END flag from the line-table entries is used to place \ | |
a383ee40 | 7228 | breakpoints past the prologue of functions. Disabling its use forces \ |
6109f7a3 LS |
7229 | the use of prologue scanners."), |
7230 | nullptr, nullptr, | |
7231 | &maintenance_set_cmdlist, | |
7232 | &maintenance_show_cmdlist); | |
7233 | ||
7234 | ||
f57d2163 DE |
7235 | add_cmd ("symbol-cache", class_maintenance, maintenance_print_symbol_cache, |
7236 | _("Dump the symbol cache for each program space."), | |
7237 | &maintenanceprintlist); | |
7238 | ||
7239 | add_cmd ("symbol-cache-statistics", class_maintenance, | |
7240 | maintenance_print_symbol_cache_statistics, | |
7241 | _("Print symbol cache statistics for each program space."), | |
7242 | &maintenanceprintlist); | |
7243 | ||
5e84b7ee SM |
7244 | cmd_list_element *maintenance_flush_symbol_cache_cmd |
7245 | = add_cmd ("symbol-cache", class_maintenance, | |
7246 | maintenance_flush_symbol_cache, | |
7247 | _("Flush the symbol cache for each program space."), | |
7248 | &maintenanceflushlist); | |
7249 | c = add_alias_cmd ("flush-symbol-cache", maintenance_flush_symbol_cache_cmd, | |
50a5f187 AB |
7250 | class_maintenance, 0, &maintenancelist); |
7251 | deprecate_cmd (c, "maintenancelist flush symbol-cache"); | |
f57d2163 | 7252 | |
c90e7d63 | 7253 | gdb::observers::new_objfile.attach (symtab_new_objfile_observer, "symtab"); |
74daa597 SM |
7254 | gdb::observers::all_objfiles_removed.attach (symtab_all_objfiles_removed, |
7255 | "symtab"); | |
c90e7d63 | 7256 | gdb::observers::free_objfile.attach (symtab_free_objfile_observer, "symtab"); |
c906108c | 7257 | } |