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c906108c | 1 | /* Symbol table lookup for the GNU debugger, GDB. |
8926118c | 2 | |
1d506c26 | 3 | Copyright (C) 1986-2024 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
19 | |
20 | #include "defs.h" | |
1298c32f | 21 | #include "dwarf2/call-site.h" |
c906108c SS |
22 | #include "symtab.h" |
23 | #include "gdbtypes.h" | |
24 | #include "gdbcore.h" | |
25 | #include "frame.h" | |
26 | #include "target.h" | |
27 | #include "value.h" | |
28 | #include "symfile.h" | |
29 | #include "objfiles.h" | |
30 | #include "gdbcmd.h" | |
d322d6d6 | 31 | #include "gdbsupport/gdb_regex.h" |
c906108c SS |
32 | #include "expression.h" |
33 | #include "language.h" | |
34 | #include "demangle.h" | |
35 | #include "inferior.h" | |
0378c332 | 36 | #include "source.h" |
ef0f16cc | 37 | #include "filenames.h" |
1bae87b9 | 38 | #include "objc-lang.h" |
6aecb9c2 | 39 | #include "d-lang.h" |
1f8173e6 | 40 | #include "ada-lang.h" |
a766d390 | 41 | #include "go-lang.h" |
cd6c7346 | 42 | #include "p-lang.h" |
ff013f42 | 43 | #include "addrmap.h" |
529480d0 | 44 | #include "cli/cli-utils.h" |
1ed9f74e | 45 | #include "cli/cli-style.h" |
50a5f187 | 46 | #include "cli/cli-cmds.h" |
cce0e923 | 47 | #include "fnmatch.h" |
2de7ced7 | 48 | #include "hashtab.h" |
12615cba | 49 | #include "typeprint.h" |
2de7ced7 | 50 | |
bf31fd38 | 51 | #include "gdbsupport/gdb_obstack.h" |
fe898f56 | 52 | #include "block.h" |
de4f826b | 53 | #include "dictionary.h" |
c906108c SS |
54 | |
55 | #include <sys/types.h> | |
56 | #include <fcntl.h> | |
53ce3c39 | 57 | #include <sys/stat.h> |
c906108c | 58 | #include <ctype.h> |
015a42b4 | 59 | #include "cp-abi.h" |
71c25dea | 60 | #include "cp-support.h" |
76727919 | 61 | #include "observable.h" |
3a40aaa0 | 62 | #include "solist.h" |
9a044a89 TT |
63 | #include "macrotab.h" |
64 | #include "macroscope.h" | |
c906108c | 65 | |
270140bd | 66 | #include "parser-defs.h" |
ef0b411a | 67 | #include "completer.h" |
5ed8105e | 68 | #include "progspace-and-thread.h" |
6b09f134 | 69 | #include <optional> |
bbf2f4df | 70 | #include "filename-seen-cache.h" |
46a62268 | 71 | #include "arch-utils.h" |
b9c04fb2 | 72 | #include <algorithm> |
8082468f | 73 | #include <string_view> |
268a13a5 | 74 | #include "gdbsupport/pathstuff.h" |
1a6ff1a9 | 75 | #include "gdbsupport/common-utils.h" |
fe6356de | 76 | #include <optional> |
ccefe4c4 | 77 | |
ff6c39cf | 78 | /* Forward declarations for local functions. */ |
c906108c | 79 | |
0b39b52e | 80 | static void rbreak_command (const char *, int); |
c906108c | 81 | |
977a0c16 | 82 | static int find_line_common (const linetable *, int, int *, int); |
c906108c | 83 | |
d12307c1 PMR |
84 | static struct block_symbol |
85 | lookup_symbol_aux (const char *name, | |
de63c46b | 86 | symbol_name_match_type match_type, |
d12307c1 | 87 | const struct block *block, |
ccf41c24 | 88 | const domain_search_flags domain, |
d12307c1 PMR |
89 | enum language language, |
90 | struct field_of_this_result *); | |
fba7f19c | 91 | |
e4051eeb | 92 | static |
d12307c1 | 93 | struct block_symbol lookup_local_symbol (const char *name, |
de63c46b | 94 | symbol_name_match_type match_type, |
d12307c1 | 95 | const struct block *block, |
ccf41c24 | 96 | const domain_search_flags domain, |
d12307c1 | 97 | enum language language); |
8155455b | 98 | |
d12307c1 | 99 | static struct block_symbol |
c32e6a04 CB |
100 | lookup_symbol_in_objfile (struct objfile *objfile, |
101 | enum block_enum block_index, | |
ccf41c24 TT |
102 | const char *name, |
103 | const domain_search_flags domain); | |
c906108c | 104 | |
a49d37f3 SM |
105 | static void set_main_name (program_space *pspace, const char *name, |
106 | language lang); | |
a0a031bc | 107 | |
32ac0d11 TT |
108 | /* Type of the data stored on the program space. */ |
109 | ||
110 | struct main_info | |
111 | { | |
112 | /* Name of "main". */ | |
113 | ||
25eb2931 | 114 | std::string name_of_main; |
32ac0d11 TT |
115 | |
116 | /* Language of "main". */ | |
117 | ||
a32ad8c5 | 118 | enum language language_of_main = language_unknown; |
32ac0d11 TT |
119 | }; |
120 | ||
a32ad8c5 TT |
121 | /* Program space key for finding name and language of "main". */ |
122 | ||
08b8a139 | 123 | static const registry<program_space>::key<main_info> main_progspace_key; |
a32ad8c5 | 124 | |
f57d2163 DE |
125 | /* The default symbol cache size. |
126 | There is no extra cpu cost for large N (except when flushing the cache, | |
127 | which is rare). The value here is just a first attempt. A better default | |
128 | value may be higher or lower. A prime number can make up for a bad hash | |
129 | computation, so that's why the number is what it is. */ | |
130 | #define DEFAULT_SYMBOL_CACHE_SIZE 1021 | |
131 | ||
132 | /* The maximum symbol cache size. | |
133 | There's no method to the decision of what value to use here, other than | |
134 | there's no point in allowing a user typo to make gdb consume all memory. */ | |
135 | #define MAX_SYMBOL_CACHE_SIZE (1024*1024) | |
136 | ||
137 | /* symbol_cache_lookup returns this if a previous lookup failed to find the | |
138 | symbol in any objfile. */ | |
d12307c1 PMR |
139 | #define SYMBOL_LOOKUP_FAILED \ |
140 | ((struct block_symbol) {(struct symbol *) 1, NULL}) | |
141 | #define SYMBOL_LOOKUP_FAILED_P(SIB) (SIB.symbol == (struct symbol *) 1) | |
f57d2163 DE |
142 | |
143 | /* Recording lookups that don't find the symbol is just as important, if not | |
144 | more so, than recording found symbols. */ | |
145 | ||
146 | enum symbol_cache_slot_state | |
147 | { | |
148 | SYMBOL_SLOT_UNUSED, | |
149 | SYMBOL_SLOT_NOT_FOUND, | |
150 | SYMBOL_SLOT_FOUND | |
151 | }; | |
152 | ||
52059ffd TT |
153 | struct symbol_cache_slot |
154 | { | |
155 | enum symbol_cache_slot_state state; | |
156 | ||
157 | /* The objfile that was current when the symbol was looked up. | |
158 | This is only needed for global blocks, but for simplicity's sake | |
159 | we allocate the space for both. If data shows the extra space used | |
160 | for static blocks is a problem, we can split things up then. | |
161 | ||
162 | Global blocks need cache lookup to include the objfile context because | |
163 | we need to account for gdbarch_iterate_over_objfiles_in_search_order | |
164 | which can traverse objfiles in, effectively, any order, depending on | |
165 | the current objfile, thus affecting which symbol is found. Normally, | |
166 | only the current objfile is searched first, and then the rest are | |
167 | searched in recorded order; but putting cache lookup inside | |
168 | gdbarch_iterate_over_objfiles_in_search_order would be awkward. | |
169 | Instead we just make the current objfile part of the context of | |
170 | cache lookup. This means we can record the same symbol multiple times, | |
171 | each with a different "current objfile" that was in effect when the | |
172 | lookup was saved in the cache, but cache space is pretty cheap. */ | |
173 | const struct objfile *objfile_context; | |
174 | ||
ccf41c24 TT |
175 | /* The domain that was searched for initially. This must exactly |
176 | match. */ | |
177 | domain_search_flags domain; | |
178 | ||
52059ffd TT |
179 | union |
180 | { | |
d12307c1 | 181 | struct block_symbol found; |
ccf41c24 | 182 | char *name; |
52059ffd TT |
183 | } value; |
184 | }; | |
185 | ||
82f910ea PW |
186 | /* Clear out SLOT. */ |
187 | ||
188 | static void | |
189 | symbol_cache_clear_slot (struct symbol_cache_slot *slot) | |
190 | { | |
191 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
ccf41c24 | 192 | xfree (slot->value.name); |
82f910ea PW |
193 | slot->state = SYMBOL_SLOT_UNUSED; |
194 | } | |
195 | ||
f57d2163 DE |
196 | /* Symbols don't specify global vs static block. |
197 | So keep them in separate caches. */ | |
198 | ||
199 | struct block_symbol_cache | |
200 | { | |
201 | unsigned int hits; | |
202 | unsigned int misses; | |
203 | unsigned int collisions; | |
204 | ||
205 | /* SYMBOLS is a variable length array of this size. | |
206 | One can imagine that in general one cache (global/static) should be a | |
207 | fraction of the size of the other, but there's no data at the moment | |
208 | on which to decide. */ | |
209 | unsigned int size; | |
210 | ||
52059ffd | 211 | struct symbol_cache_slot symbols[1]; |
f57d2163 DE |
212 | }; |
213 | ||
82f910ea PW |
214 | /* Clear all slots of BSC and free BSC. */ |
215 | ||
216 | static void | |
217 | destroy_block_symbol_cache (struct block_symbol_cache *bsc) | |
218 | { | |
219 | if (bsc != nullptr) | |
220 | { | |
221 | for (unsigned int i = 0; i < bsc->size; i++) | |
222 | symbol_cache_clear_slot (&bsc->symbols[i]); | |
223 | xfree (bsc); | |
224 | } | |
225 | } | |
226 | ||
f57d2163 DE |
227 | /* The symbol cache. |
228 | ||
229 | Searching for symbols in the static and global blocks over multiple objfiles | |
230 | again and again can be slow, as can searching very big objfiles. This is a | |
231 | simple cache to improve symbol lookup performance, which is critical to | |
232 | overall gdb performance. | |
233 | ||
234 | Symbols are hashed on the name, its domain, and block. | |
235 | They are also hashed on their objfile for objfile-specific lookups. */ | |
236 | ||
237 | struct symbol_cache | |
238 | { | |
3017b94d TT |
239 | symbol_cache () = default; |
240 | ||
241 | ~symbol_cache () | |
242 | { | |
82f910ea PW |
243 | destroy_block_symbol_cache (global_symbols); |
244 | destroy_block_symbol_cache (static_symbols); | |
3017b94d TT |
245 | } |
246 | ||
247 | struct block_symbol_cache *global_symbols = nullptr; | |
248 | struct block_symbol_cache *static_symbols = nullptr; | |
f57d2163 DE |
249 | }; |
250 | ||
3017b94d TT |
251 | /* Program space key for finding its symbol cache. */ |
252 | ||
08b8a139 | 253 | static const registry<program_space>::key<symbol_cache> symbol_cache_key; |
3017b94d | 254 | |
45cfd468 | 255 | /* When non-zero, print debugging messages related to symtab creation. */ |
db0fec5c | 256 | unsigned int symtab_create_debug = 0; |
45cfd468 | 257 | |
cc485e62 DE |
258 | /* When non-zero, print debugging messages related to symbol lookup. */ |
259 | unsigned int symbol_lookup_debug = 0; | |
260 | ||
f57d2163 DE |
261 | /* The size of the cache is staged here. */ |
262 | static unsigned int new_symbol_cache_size = DEFAULT_SYMBOL_CACHE_SIZE; | |
263 | ||
264 | /* The current value of the symbol cache size. | |
265 | This is saved so that if the user enters a value too big we can restore | |
266 | the original value from here. */ | |
267 | static unsigned int symbol_cache_size = DEFAULT_SYMBOL_CACHE_SIZE; | |
268 | ||
491144b5 | 269 | /* True if a file may be known by two different basenames. |
c011a4f4 DE |
270 | This is the uncommon case, and significantly slows down gdb. |
271 | Default set to "off" to not slow down the common case. */ | |
491144b5 | 272 | bool basenames_may_differ = false; |
c011a4f4 | 273 | |
717d2f5a JB |
274 | /* Allow the user to configure the debugger behavior with respect |
275 | to multiple-choice menus when more than one symbol matches during | |
276 | a symbol lookup. */ | |
277 | ||
7fc830e2 MK |
278 | const char multiple_symbols_ask[] = "ask"; |
279 | const char multiple_symbols_all[] = "all"; | |
280 | const char multiple_symbols_cancel[] = "cancel"; | |
40478521 | 281 | static const char *const multiple_symbols_modes[] = |
717d2f5a JB |
282 | { |
283 | multiple_symbols_ask, | |
284 | multiple_symbols_all, | |
285 | multiple_symbols_cancel, | |
286 | NULL | |
287 | }; | |
288 | static const char *multiple_symbols_mode = multiple_symbols_all; | |
289 | ||
6109f7a3 LS |
290 | /* When TRUE, ignore the prologue-end flag in linetable_entry when searching |
291 | for the SAL past a function prologue. */ | |
292 | static bool ignore_prologue_end_flag = false; | |
293 | ||
717d2f5a JB |
294 | /* Read-only accessor to AUTO_SELECT_MODE. */ |
295 | ||
296 | const char * | |
297 | multiple_symbols_select_mode (void) | |
298 | { | |
299 | return multiple_symbols_mode; | |
300 | } | |
301 | ||
20c681d1 DE |
302 | /* Return the name of a domain_enum. */ |
303 | ||
304 | const char * | |
305 | domain_name (domain_enum e) | |
306 | { | |
307 | switch (e) | |
308 | { | |
6771fc6f TT |
309 | #define DOMAIN(X) \ |
310 | case X ## _DOMAIN: return #X "_DOMAIN"; | |
311 | #include "sym-domains.def" | |
312 | #undef DOMAIN | |
20c681d1 DE |
313 | default: gdb_assert_not_reached ("bad domain_enum"); |
314 | } | |
315 | } | |
316 | ||
43f3e411 | 317 | /* See symtab.h. */ |
db0fec5c | 318 | |
25f31e18 TT |
319 | std::string |
320 | domain_name (domain_search_flags flags) | |
321 | { | |
322 | static constexpr domain_search_flags::string_mapping mapping[] = { | |
323 | #define DOMAIN(X) \ | |
324 | MAP_ENUM_FLAG (SEARCH_ ## X ## _DOMAIN), | |
325 | #include "sym-domains.def" | |
326 | #undef DOMAIN | |
327 | }; | |
328 | ||
329 | return flags.to_string (mapping); | |
330 | } | |
331 | ||
332 | /* See symtab.h. */ | |
333 | ||
88ff5355 TT |
334 | domain_search_flags |
335 | from_scripting_domain (int val) | |
336 | { | |
337 | if ((val & SCRIPTING_SEARCH_FLAG) == 0) | |
338 | { | |
339 | /* VAL should be one of the domain constants. Verify this and | |
340 | convert it to a search constant. */ | |
341 | switch (val) | |
342 | { | |
343 | #define DOMAIN(X) \ | |
344 | case X ## _DOMAIN: break; | |
345 | #include "sym-domains.def" | |
346 | #undef DOMAIN | |
347 | default: | |
348 | error (_("unrecognized domain constant")); | |
349 | } | |
350 | domain_search_flags result = to_search_flags ((domain_enum) val); | |
351 | if (val == VAR_DOMAIN) | |
352 | { | |
353 | /* This matches the historical practice. */ | |
354 | result |= SEARCH_TYPE_DOMAIN | SEARCH_FUNCTION_DOMAIN; | |
355 | } | |
356 | return result; | |
357 | } | |
358 | else | |
359 | { | |
360 | /* VAL is several search constants or'd together. Verify | |
361 | this. */ | |
362 | val &= ~SCRIPTING_SEARCH_FLAG; | |
363 | int check = val; | |
364 | #define DOMAIN(X) \ | |
365 | check &= ~ (int) SEARCH_ ## X ## _DOMAIN; | |
366 | #include "sym-domains.def" | |
367 | #undef DOMAIN | |
368 | if (check != 0) | |
369 | error (_("unrecognized domain constant")); | |
370 | return (domain_search_flag) val; | |
371 | } | |
372 | } | |
373 | ||
374 | /* See symtab.h. */ | |
375 | ||
1acc9dca TT |
376 | CORE_ADDR |
377 | linetable_entry::pc (const struct objfile *objfile) const | |
378 | { | |
48e0f38c | 379 | return CORE_ADDR (m_pc) + objfile->text_section_offset (); |
1acc9dca TT |
380 | } |
381 | ||
382 | /* See symtab.h. */ | |
383 | ||
b625c770 SM |
384 | call_site * |
385 | compunit_symtab::find_call_site (CORE_ADDR pc) const | |
386 | { | |
387 | if (m_call_site_htab == nullptr) | |
388 | return nullptr; | |
389 | ||
d401e7bf | 390 | CORE_ADDR delta = this->objfile ()->text_section_offset (); |
1e73d09f | 391 | unrelocated_addr unrelocated_pc = (unrelocated_addr) (pc - delta); |
b0b8879e SM |
392 | |
393 | struct call_site call_site_local (unrelocated_pc, nullptr, nullptr); | |
0dd8295d TV |
394 | void **slot |
395 | = htab_find_slot (m_call_site_htab, &call_site_local, NO_INSERT); | |
9df25c34 TT |
396 | if (slot != nullptr) |
397 | return (call_site *) *slot; | |
398 | ||
399 | /* See if the arch knows another PC we should try. On some | |
400 | platforms, GCC emits a DWARF call site that is offset from the | |
401 | actual return location. */ | |
402 | struct gdbarch *arch = objfile ()->arch (); | |
403 | CORE_ADDR new_pc = gdbarch_update_call_site_pc (arch, pc); | |
404 | if (pc == new_pc) | |
405 | return nullptr; | |
406 | ||
1e73d09f TT |
407 | unrelocated_pc = (unrelocated_addr) (new_pc - delta); |
408 | call_site new_call_site_local (unrelocated_pc, nullptr, nullptr); | |
9df25c34 | 409 | slot = htab_find_slot (m_call_site_htab, &new_call_site_local, NO_INSERT); |
b625c770 SM |
410 | if (slot == nullptr) |
411 | return nullptr; | |
412 | ||
413 | return (call_site *) *slot; | |
414 | } | |
415 | ||
416 | /* See symtab.h. */ | |
417 | ||
418 | void | |
419 | compunit_symtab::set_call_site_htab (htab_t call_site_htab) | |
420 | { | |
421 | gdb_assert (m_call_site_htab == nullptr); | |
422 | m_call_site_htab = call_site_htab; | |
423 | } | |
424 | ||
425 | /* See symtab.h. */ | |
426 | ||
36664835 SM |
427 | void |
428 | compunit_symtab::set_primary_filetab (symtab *primary_filetab) | |
429 | { | |
430 | symtab *prev_filetab = nullptr; | |
431 | ||
432 | /* Move PRIMARY_FILETAB to the head of the filetab list. */ | |
102cc235 | 433 | for (symtab *filetab : this->filetabs ()) |
36664835 SM |
434 | { |
435 | if (filetab == primary_filetab) | |
436 | { | |
437 | if (prev_filetab != nullptr) | |
438 | { | |
439 | prev_filetab->next = primary_filetab->next; | |
102cc235 SM |
440 | primary_filetab->next = m_filetabs; |
441 | m_filetabs = primary_filetab; | |
36664835 SM |
442 | } |
443 | ||
444 | break; | |
445 | } | |
446 | ||
447 | prev_filetab = filetab; | |
448 | } | |
449 | ||
102cc235 | 450 | gdb_assert (primary_filetab == m_filetabs); |
36664835 SM |
451 | } |
452 | ||
453 | /* See symtab.h. */ | |
454 | ||
43f3e411 | 455 | struct symtab * |
0b17a4f7 | 456 | compunit_symtab::primary_filetab () const |
db0fec5c | 457 | { |
102cc235 | 458 | gdb_assert (m_filetabs != nullptr); |
db0fec5c | 459 | |
43f3e411 | 460 | /* The primary file symtab is the first one in the list. */ |
102cc235 | 461 | return m_filetabs; |
43f3e411 DE |
462 | } |
463 | ||
464 | /* See symtab.h. */ | |
465 | ||
466 | enum language | |
425d5e76 | 467 | compunit_symtab::language () const |
43f3e411 | 468 | { |
425d5e76 | 469 | struct symtab *symtab = primary_filetab (); |
43f3e411 | 470 | |
425d5e76 TT |
471 | /* The language of the compunit symtab is the language of its |
472 | primary source file. */ | |
1ee2e9f9 | 473 | return symtab->language (); |
db0fec5c DE |
474 | } |
475 | ||
4aeddc50 SM |
476 | /* The relocated address of the minimal symbol, using the section |
477 | offsets from OBJFILE. */ | |
478 | ||
479 | CORE_ADDR | |
480 | minimal_symbol::value_address (objfile *objfile) const | |
481 | { | |
62669649 | 482 | if (this->maybe_copied (objfile)) |
23e6f781 | 483 | return this->get_maybe_copied_address (objfile); |
4aeddc50 | 484 | else |
93d50cd8 | 485 | return (CORE_ADDR (this->unrelocated_address ()) |
4aeddc50 SM |
486 | + objfile->section_offsets[this->section_index ()]); |
487 | } | |
488 | ||
1ed9f74e PW |
489 | /* See symtab.h. */ |
490 | ||
491 | bool | |
492 | minimal_symbol::data_p () const | |
493 | { | |
60f62e2b SM |
494 | return m_type == mst_data |
495 | || m_type == mst_bss | |
496 | || m_type == mst_abs | |
497 | || m_type == mst_file_data | |
498 | || m_type == mst_file_bss; | |
1ed9f74e PW |
499 | } |
500 | ||
501 | /* See symtab.h. */ | |
502 | ||
503 | bool | |
504 | minimal_symbol::text_p () const | |
505 | { | |
60f62e2b SM |
506 | return m_type == mst_text |
507 | || m_type == mst_text_gnu_ifunc | |
508 | || m_type == mst_data_gnu_ifunc | |
509 | || m_type == mst_slot_got_plt | |
510 | || m_type == mst_solib_trampoline | |
511 | || m_type == mst_file_text; | |
1ed9f74e PW |
512 | } |
513 | ||
62669649 KB |
514 | /* See symtab.h. */ |
515 | ||
516 | bool | |
517 | minimal_symbol::maybe_copied (objfile *objfile) const | |
518 | { | |
519 | return (objfile->object_format_has_copy_relocs | |
520 | && (objfile->flags & OBJF_MAINLINE) == 0 | |
521 | && (m_type == mst_data || m_type == mst_bss)); | |
522 | } | |
523 | ||
4aac40c8 TT |
524 | /* See whether FILENAME matches SEARCH_NAME using the rule that we |
525 | advertise to the user. (The manual's description of linespecs | |
af529f8f JK |
526 | describes what we advertise). Returns true if they match, false |
527 | otherwise. */ | |
4aac40c8 | 528 | |
ececd218 | 529 | bool |
b57a636e | 530 | compare_filenames_for_search (const char *filename, const char *search_name) |
4aac40c8 TT |
531 | { |
532 | int len = strlen (filename); | |
b57a636e | 533 | size_t search_len = strlen (search_name); |
4aac40c8 TT |
534 | |
535 | if (len < search_len) | |
ececd218 | 536 | return false; |
4aac40c8 TT |
537 | |
538 | /* The tail of FILENAME must match. */ | |
539 | if (FILENAME_CMP (filename + len - search_len, search_name) != 0) | |
ececd218 | 540 | return false; |
4aac40c8 TT |
541 | |
542 | /* Either the names must completely match, or the character | |
543 | preceding the trailing SEARCH_NAME segment of FILENAME must be a | |
d84fca2c JK |
544 | directory separator. |
545 | ||
af529f8f JK |
546 | The check !IS_ABSOLUTE_PATH ensures SEARCH_NAME "/dir/file.c" |
547 | cannot match FILENAME "/path//dir/file.c" - as user has requested | |
548 | absolute path. The sama applies for "c:\file.c" possibly | |
549 | incorrectly hypothetically matching "d:\dir\c:\file.c". | |
550 | ||
d84fca2c JK |
551 | The HAS_DRIVE_SPEC purpose is to make FILENAME "c:file.c" |
552 | compatible with SEARCH_NAME "file.c". In such case a compiler had | |
553 | to put the "c:file.c" name into debug info. Such compatibility | |
554 | works only on GDB built for DOS host. */ | |
4aac40c8 | 555 | return (len == search_len |
af529f8f JK |
556 | || (!IS_ABSOLUTE_PATH (search_name) |
557 | && IS_DIR_SEPARATOR (filename[len - search_len - 1])) | |
4aac40c8 TT |
558 | || (HAS_DRIVE_SPEC (filename) |
559 | && STRIP_DRIVE_SPEC (filename) == &filename[len - search_len])); | |
560 | } | |
561 | ||
cce0e923 DE |
562 | /* Same as compare_filenames_for_search, but for glob-style patterns. |
563 | Heads up on the order of the arguments. They match the order of | |
564 | compare_filenames_for_search, but it's the opposite of the order of | |
565 | arguments to gdb_filename_fnmatch. */ | |
566 | ||
ececd218 | 567 | bool |
cce0e923 DE |
568 | compare_glob_filenames_for_search (const char *filename, |
569 | const char *search_name) | |
570 | { | |
571 | /* We rely on the property of glob-style patterns with FNM_FILE_NAME that | |
572 | all /s have to be explicitly specified. */ | |
573 | int file_path_elements = count_path_elements (filename); | |
574 | int search_path_elements = count_path_elements (search_name); | |
575 | ||
576 | if (search_path_elements > file_path_elements) | |
ececd218 | 577 | return false; |
cce0e923 DE |
578 | |
579 | if (IS_ABSOLUTE_PATH (search_name)) | |
580 | { | |
581 | return (search_path_elements == file_path_elements | |
582 | && gdb_filename_fnmatch (search_name, filename, | |
583 | FNM_FILE_NAME | FNM_NOESCAPE) == 0); | |
584 | } | |
585 | ||
586 | { | |
587 | const char *file_to_compare | |
588 | = strip_leading_path_elements (filename, | |
589 | file_path_elements - search_path_elements); | |
590 | ||
591 | return gdb_filename_fnmatch (search_name, file_to_compare, | |
592 | FNM_FILE_NAME | FNM_NOESCAPE) == 0; | |
593 | } | |
594 | } | |
595 | ||
f8eba3c6 TT |
596 | /* Check for a symtab of a specific name by searching some symtabs. |
597 | This is a helper function for callbacks of iterate_over_symtabs. | |
c906108c | 598 | |
b2d23133 DE |
599 | If NAME is not absolute, then REAL_PATH is NULL |
600 | If NAME is absolute, then REAL_PATH is the gdb_realpath form of NAME. | |
601 | ||
14bc53a8 PA |
602 | The return value, NAME, REAL_PATH and CALLBACK are identical to the |
603 | `map_symtabs_matching_filename' method of quick_symbol_functions. | |
f8eba3c6 | 604 | |
43f3e411 DE |
605 | FIRST and AFTER_LAST indicate the range of compunit symtabs to search. |
606 | Each symtab within the specified compunit symtab is also searched. | |
607 | AFTER_LAST is one past the last compunit symtab to search; NULL means to | |
f8eba3c6 TT |
608 | search until the end of the list. */ |
609 | ||
14bc53a8 | 610 | bool |
f8eba3c6 | 611 | iterate_over_some_symtabs (const char *name, |
f8eba3c6 | 612 | const char *real_path, |
43f3e411 | 613 | struct compunit_symtab *first, |
14bc53a8 PA |
614 | struct compunit_symtab *after_last, |
615 | gdb::function_view<bool (symtab *)> callback) | |
c906108c | 616 | { |
43f3e411 | 617 | struct compunit_symtab *cust; |
c011a4f4 | 618 | const char* base_name = lbasename (name); |
1f84b619 | 619 | |
43f3e411 | 620 | for (cust = first; cust != NULL && cust != after_last; cust = cust->next) |
f079a2e5 | 621 | { |
7023b8d8 TV |
622 | /* Skip included compunits. */ |
623 | if (cust->user != nullptr) | |
624 | continue; | |
625 | ||
102cc235 | 626 | for (symtab *s : cust->filetabs ()) |
a94e8645 | 627 | { |
43f3e411 DE |
628 | if (compare_filenames_for_search (s->filename, name)) |
629 | { | |
14bc53a8 PA |
630 | if (callback (s)) |
631 | return true; | |
43f3e411 DE |
632 | continue; |
633 | } | |
a94e8645 | 634 | |
43f3e411 DE |
635 | /* Before we invoke realpath, which can get expensive when many |
636 | files are involved, do a quick comparison of the basenames. */ | |
637 | if (! basenames_may_differ | |
638 | && FILENAME_CMP (base_name, lbasename (s->filename)) != 0) | |
639 | continue; | |
a94e8645 | 640 | |
43f3e411 | 641 | if (compare_filenames_for_search (symtab_to_fullname (s), name)) |
a94e8645 | 642 | { |
14bc53a8 PA |
643 | if (callback (s)) |
644 | return true; | |
a94e8645 DE |
645 | continue; |
646 | } | |
43f3e411 DE |
647 | |
648 | /* If the user gave us an absolute path, try to find the file in | |
649 | this symtab and use its absolute path. */ | |
650 | if (real_path != NULL) | |
651 | { | |
652 | const char *fullname = symtab_to_fullname (s); | |
653 | ||
654 | gdb_assert (IS_ABSOLUTE_PATH (real_path)); | |
655 | gdb_assert (IS_ABSOLUTE_PATH (name)); | |
7e785608 TV |
656 | gdb::unique_xmalloc_ptr<char> fullname_real_path |
657 | = gdb_realpath (fullname); | |
658 | fullname = fullname_real_path.get (); | |
43f3e411 DE |
659 | if (FILENAME_CMP (real_path, fullname) == 0) |
660 | { | |
14bc53a8 PA |
661 | if (callback (s)) |
662 | return true; | |
43f3e411 DE |
663 | continue; |
664 | } | |
665 | } | |
a94e8645 | 666 | } |
f8eba3c6 | 667 | } |
58d370e0 | 668 | |
14bc53a8 | 669 | return false; |
f8eba3c6 TT |
670 | } |
671 | ||
672 | /* Check for a symtab of a specific name; first in symtabs, then in | |
673 | psymtabs. *If* there is no '/' in the name, a match after a '/' | |
674 | in the symtab filename will also work. | |
675 | ||
14bc53a8 PA |
676 | Calls CALLBACK with each symtab that is found. If CALLBACK returns |
677 | true, the search stops. */ | |
f8eba3c6 TT |
678 | |
679 | void | |
680 | iterate_over_symtabs (const char *name, | |
14bc53a8 | 681 | gdb::function_view<bool (symtab *)> callback) |
f8eba3c6 | 682 | { |
14bc53a8 | 683 | gdb::unique_xmalloc_ptr<char> real_path; |
f8eba3c6 TT |
684 | |
685 | /* Here we are interested in canonicalizing an absolute path, not | |
686 | absolutizing a relative path. */ | |
687 | if (IS_ABSOLUTE_PATH (name)) | |
688 | { | |
14278e1f | 689 | real_path = gdb_realpath (name); |
14bc53a8 | 690 | gdb_assert (IS_ABSOLUTE_PATH (real_path.get ())); |
f8eba3c6 TT |
691 | } |
692 | ||
2030c079 | 693 | for (objfile *objfile : current_program_space->objfiles ()) |
14bc53a8 PA |
694 | { |
695 | if (iterate_over_some_symtabs (name, real_path.get (), | |
696 | objfile->compunit_symtabs, NULL, | |
697 | callback)) | |
f8eba3c6 | 698 | return; |
14bc53a8 | 699 | } |
f8eba3c6 | 700 | |
c906108c SS |
701 | /* Same search rules as above apply here, but now we look thru the |
702 | psymtabs. */ | |
703 | ||
2030c079 | 704 | for (objfile *objfile : current_program_space->objfiles ()) |
14bc53a8 | 705 | { |
4d080b46 TT |
706 | if (objfile->map_symtabs_matching_filename (name, real_path.get (), |
707 | callback)) | |
f8eba3c6 | 708 | return; |
14bc53a8 | 709 | } |
c906108c | 710 | } |
f8eba3c6 TT |
711 | |
712 | /* A wrapper for iterate_over_symtabs that returns the first matching | |
713 | symtab, or NULL. */ | |
714 | ||
715 | struct symtab * | |
716 | lookup_symtab (const char *name) | |
717 | { | |
718 | struct symtab *result = NULL; | |
719 | ||
14bc53a8 PA |
720 | iterate_over_symtabs (name, [&] (symtab *symtab) |
721 | { | |
722 | result = symtab; | |
723 | return true; | |
724 | }); | |
725 | ||
f8eba3c6 TT |
726 | return result; |
727 | } | |
728 | ||
c906108c SS |
729 | \f |
730 | /* Mangle a GDB method stub type. This actually reassembles the pieces of the | |
731 | full method name, which consist of the class name (from T), the unadorned | |
732 | method name from METHOD_ID, and the signature for the specific overload, | |
c378eb4e | 733 | specified by SIGNATURE_ID. Note that this function is g++ specific. */ |
c906108c SS |
734 | |
735 | char * | |
fba45db2 | 736 | gdb_mangle_name (struct type *type, int method_id, int signature_id) |
c906108c SS |
737 | { |
738 | int mangled_name_len; | |
739 | char *mangled_name; | |
740 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
741 | struct fn_field *method = &f[signature_id]; | |
0d5cff50 | 742 | const char *field_name = TYPE_FN_FIELDLIST_NAME (type, method_id); |
1d06ead6 | 743 | const char *physname = TYPE_FN_FIELD_PHYSNAME (f, signature_id); |
7d93a1e0 | 744 | const char *newname = type->name (); |
c906108c SS |
745 | |
746 | /* Does the form of physname indicate that it is the full mangled name | |
747 | of a constructor (not just the args)? */ | |
748 | int is_full_physname_constructor; | |
749 | ||
750 | int is_constructor; | |
015a42b4 | 751 | int is_destructor = is_destructor_name (physname); |
c906108c | 752 | /* Need a new type prefix. */ |
e6a959d6 PA |
753 | const char *const_prefix = method->is_const ? "C" : ""; |
754 | const char *volatile_prefix = method->is_volatile ? "V" : ""; | |
c906108c SS |
755 | char buf[20]; |
756 | int len = (newname == NULL ? 0 : strlen (newname)); | |
757 | ||
43630227 PS |
758 | /* Nothing to do if physname already contains a fully mangled v3 abi name |
759 | or an operator name. */ | |
760 | if ((physname[0] == '_' && physname[1] == 'Z') | |
761 | || is_operator_name (field_name)) | |
235d1e03 EZ |
762 | return xstrdup (physname); |
763 | ||
015a42b4 | 764 | is_full_physname_constructor = is_constructor_name (physname); |
c906108c | 765 | |
3e43a32a MS |
766 | is_constructor = is_full_physname_constructor |
767 | || (newname && strcmp (field_name, newname) == 0); | |
c906108c SS |
768 | |
769 | if (!is_destructor) | |
61012eef | 770 | is_destructor = (startswith (physname, "__dt")); |
c906108c SS |
771 | |
772 | if (is_destructor || is_full_physname_constructor) | |
773 | { | |
c5aa993b JM |
774 | mangled_name = (char *) xmalloc (strlen (physname) + 1); |
775 | strcpy (mangled_name, physname); | |
c906108c SS |
776 | return mangled_name; |
777 | } | |
778 | ||
779 | if (len == 0) | |
780 | { | |
8c042590 | 781 | xsnprintf (buf, sizeof (buf), "__%s%s", const_prefix, volatile_prefix); |
c906108c SS |
782 | } |
783 | else if (physname[0] == 't' || physname[0] == 'Q') | |
784 | { | |
785 | /* The physname for template and qualified methods already includes | |
dda83cd7 | 786 | the class name. */ |
8c042590 | 787 | xsnprintf (buf, sizeof (buf), "__%s%s", const_prefix, volatile_prefix); |
c906108c SS |
788 | newname = NULL; |
789 | len = 0; | |
790 | } | |
791 | else | |
792 | { | |
8c042590 PM |
793 | xsnprintf (buf, sizeof (buf), "__%s%s%d", const_prefix, |
794 | volatile_prefix, len); | |
c906108c SS |
795 | } |
796 | mangled_name_len = ((is_constructor ? 0 : strlen (field_name)) | |
235d1e03 | 797 | + strlen (buf) + len + strlen (physname) + 1); |
c906108c | 798 | |
433759f7 MS |
799 | mangled_name = (char *) xmalloc (mangled_name_len); |
800 | if (is_constructor) | |
801 | mangled_name[0] = '\0'; | |
802 | else | |
803 | strcpy (mangled_name, field_name); | |
804 | ||
c906108c SS |
805 | strcat (mangled_name, buf); |
806 | /* If the class doesn't have a name, i.e. newname NULL, then we just | |
807 | mangle it using 0 for the length of the class. Thus it gets mangled | |
c378eb4e | 808 | as something starting with `::' rather than `classname::'. */ |
c906108c SS |
809 | if (newname != NULL) |
810 | strcat (mangled_name, newname); | |
811 | ||
812 | strcat (mangled_name, physname); | |
813 | return (mangled_name); | |
814 | } | |
12af6855 | 815 | |
ff985671 | 816 | /* See symtab.h. */ |
eca864fe | 817 | |
b250c185 | 818 | void |
ff985671 TT |
819 | general_symbol_info::set_demangled_name (const char *name, |
820 | struct obstack *obstack) | |
b250c185 | 821 | { |
ff985671 | 822 | if (language () == language_ada) |
f85f34ed TT |
823 | { |
824 | if (name == NULL) | |
825 | { | |
ff985671 TT |
826 | ada_mangled = 0; |
827 | language_specific.obstack = obstack; | |
f85f34ed TT |
828 | } |
829 | else | |
830 | { | |
ff985671 TT |
831 | ada_mangled = 1; |
832 | language_specific.demangled_name = name; | |
f85f34ed TT |
833 | } |
834 | } | |
29df156d | 835 | else |
ff985671 | 836 | language_specific.demangled_name = name; |
b250c185 SW |
837 | } |
838 | ||
12af6855 | 839 | \f |
89aad1f9 | 840 | /* Initialize the language dependent portion of a symbol |
c378eb4e | 841 | depending upon the language for the symbol. */ |
eca864fe | 842 | |
89aad1f9 | 843 | void |
d3ecddab CB |
844 | general_symbol_info::set_language (enum language language, |
845 | struct obstack *obstack) | |
89aad1f9 | 846 | { |
d3ecddab | 847 | m_language = language; |
c1b5c1eb CB |
848 | if (language == language_cplus |
849 | || language == language_d | |
850 | || language == language_go | |
851 | || language == language_objc | |
852 | || language == language_fortran) | |
89aad1f9 | 853 | { |
ff985671 | 854 | set_demangled_name (NULL, obstack); |
f85f34ed | 855 | } |
c1b5c1eb | 856 | else if (language == language_ada) |
f85f34ed | 857 | { |
d3ecddab CB |
858 | gdb_assert (ada_mangled == 0); |
859 | language_specific.obstack = obstack; | |
89aad1f9 | 860 | } |
89aad1f9 EZ |
861 | else |
862 | { | |
d3ecddab | 863 | memset (&language_specific, 0, sizeof (language_specific)); |
89aad1f9 EZ |
864 | } |
865 | } | |
866 | ||
2de7ced7 DJ |
867 | /* Functions to initialize a symbol's mangled name. */ |
868 | ||
04a679b8 TT |
869 | /* Objects of this type are stored in the demangled name hash table. */ |
870 | struct demangled_name_entry | |
871 | { | |
8082468f | 872 | demangled_name_entry (std::string_view mangled_name) |
3a494279 CB |
873 | : mangled (mangled_name) {} |
874 | ||
8082468f | 875 | std::string_view mangled; |
403772ef | 876 | enum language language; |
5396ae17 | 877 | gdb::unique_xmalloc_ptr<char> demangled; |
04a679b8 TT |
878 | }; |
879 | ||
880 | /* Hash function for the demangled name hash. */ | |
eca864fe | 881 | |
04a679b8 TT |
882 | static hashval_t |
883 | hash_demangled_name_entry (const void *data) | |
884 | { | |
19ba03f4 SM |
885 | const struct demangled_name_entry *e |
886 | = (const struct demangled_name_entry *) data; | |
433759f7 | 887 | |
1a8605a8 | 888 | return gdb::string_view_hash () (e->mangled); |
04a679b8 TT |
889 | } |
890 | ||
891 | /* Equality function for the demangled name hash. */ | |
eca864fe | 892 | |
04a679b8 TT |
893 | static int |
894 | eq_demangled_name_entry (const void *a, const void *b) | |
895 | { | |
19ba03f4 SM |
896 | const struct demangled_name_entry *da |
897 | = (const struct demangled_name_entry *) a; | |
898 | const struct demangled_name_entry *db | |
899 | = (const struct demangled_name_entry *) b; | |
433759f7 | 900 | |
7bb43059 | 901 | return da->mangled == db->mangled; |
04a679b8 TT |
902 | } |
903 | ||
3a494279 CB |
904 | static void |
905 | free_demangled_name_entry (void *data) | |
906 | { | |
907 | struct demangled_name_entry *e | |
908 | = (struct demangled_name_entry *) data; | |
909 | ||
910 | e->~demangled_name_entry(); | |
911 | } | |
912 | ||
2de7ced7 DJ |
913 | /* Create the hash table used for demangled names. Each hash entry is |
914 | a pair of strings; one for the mangled name and one for the demangled | |
915 | name. The entry is hashed via just the mangled name. */ | |
916 | ||
917 | static void | |
0f14768a | 918 | create_demangled_names_hash (struct objfile_per_bfd_storage *per_bfd) |
2de7ced7 DJ |
919 | { |
920 | /* Choose 256 as the starting size of the hash table, somewhat arbitrarily. | |
9af17804 | 921 | The hash table code will round this up to the next prime number. |
2de7ced7 | 922 | Choosing a much larger table size wastes memory, and saves only about |
f8bab2d6 CB |
923 | 1% in symbol reading. However, if the minsym count is already |
924 | initialized (e.g. because symbol name setting was deferred to | |
925 | a background thread) we can initialize the hashtable with a count | |
926 | based on that, because we will almost certainly have at least that | |
927 | many entries. If we have a nonzero number but less than 256, | |
928 | we still stay with 256 to have some space for psymbols, etc. */ | |
929 | ||
930 | /* htab will expand the table when it is 3/4th full, so we account for that | |
931 | here. +2 to round up. */ | |
932 | int minsym_based_count = (per_bfd->minimal_symbol_count + 2) / 3 * 4; | |
933 | int count = std::max (per_bfd->minimal_symbol_count, minsym_based_count); | |
2de7ced7 | 934 | |
db92718b | 935 | per_bfd->demangled_names_hash.reset (htab_create_alloc |
f8bab2d6 | 936 | (count, hash_demangled_name_entry, eq_demangled_name_entry, |
3a494279 | 937 | free_demangled_name_entry, xcalloc, xfree)); |
2de7ced7 | 938 | } |
12af6855 | 939 | |
d55c9a68 | 940 | /* See symtab.h */ |
12af6855 | 941 | |
3456e70c | 942 | gdb::unique_xmalloc_ptr<char> |
2de7ced7 DJ |
943 | symbol_find_demangled_name (struct general_symbol_info *gsymbol, |
944 | const char *mangled) | |
12af6855 | 945 | { |
3456e70c | 946 | gdb::unique_xmalloc_ptr<char> demangled; |
8b302db8 | 947 | int i; |
12af6855 | 948 | |
129bce36 | 949 | if (gsymbol->language () != language_unknown) |
1bae87b9 | 950 | { |
c1b5c1eb | 951 | const struct language_defn *lang = language_def (gsymbol->language ()); |
8b302db8 | 952 | |
6f827019 | 953 | lang->sniff_from_mangled_name (mangled, &demangled); |
8b302db8 | 954 | return demangled; |
6aecb9c2 | 955 | } |
8b302db8 TT |
956 | |
957 | for (i = language_unknown; i < nr_languages; ++i) | |
a766d390 | 958 | { |
8b302db8 TT |
959 | enum language l = (enum language) i; |
960 | const struct language_defn *lang = language_def (l); | |
961 | ||
6f827019 | 962 | if (lang->sniff_from_mangled_name (mangled, &demangled)) |
a766d390 | 963 | { |
c1b5c1eb | 964 | gsymbol->m_language = l; |
a766d390 DE |
965 | return demangled; |
966 | } | |
967 | } | |
968 | ||
2de7ced7 DJ |
969 | return NULL; |
970 | } | |
971 | ||
980cae7a | 972 | /* Set both the mangled and demangled (if any) names for GSYMBOL based |
04a679b8 TT |
973 | on LINKAGE_NAME and LEN. Ordinarily, NAME is copied onto the |
974 | objfile's obstack; but if COPY_NAME is 0 and if NAME is | |
975 | NUL-terminated, then this function assumes that NAME is already | |
976 | correctly saved (either permanently or with a lifetime tied to the | |
977 | objfile), and it will not be copied. | |
978 | ||
979 | The hash table corresponding to OBJFILE is used, and the memory | |
84a1243b | 980 | comes from the per-BFD storage_obstack. LINKAGE_NAME is copied, |
04a679b8 | 981 | so the pointer can be discarded after calling this function. */ |
2de7ced7 DJ |
982 | |
983 | void | |
8082468f | 984 | general_symbol_info::compute_and_set_names (std::string_view linkage_name, |
4d4eaa30 CB |
985 | bool copy_name, |
986 | objfile_per_bfd_storage *per_bfd, | |
6b09f134 | 987 | std::optional<hashval_t> hash) |
2de7ced7 | 988 | { |
04a679b8 | 989 | struct demangled_name_entry **slot; |
2de7ced7 | 990 | |
4d4eaa30 | 991 | if (language () == language_ada) |
b06ead72 JB |
992 | { |
993 | /* In Ada, we do the symbol lookups using the mangled name, so | |
dda83cd7 | 994 | we can save some space by not storing the demangled name. */ |
92174eea | 995 | if (!copy_name) |
4d4eaa30 | 996 | m_name = linkage_name.data (); |
04a679b8 | 997 | else |
869d8950 TT |
998 | m_name = obstack_strndup (&per_bfd->storage_obstack, |
999 | linkage_name.data (), | |
1000 | linkage_name.length ()); | |
ff985671 | 1001 | set_demangled_name (NULL, &per_bfd->storage_obstack); |
b06ead72 JB |
1002 | |
1003 | return; | |
1004 | } | |
1005 | ||
84a1243b | 1006 | if (per_bfd->demangled_names_hash == NULL) |
0f14768a | 1007 | create_demangled_names_hash (per_bfd); |
04a679b8 | 1008 | |
31edb802 | 1009 | struct demangled_name_entry entry (linkage_name); |
e76b2246 CB |
1010 | if (!hash.has_value ()) |
1011 | hash = hash_demangled_name_entry (&entry); | |
04a679b8 | 1012 | slot = ((struct demangled_name_entry **) |
dda83cd7 | 1013 | htab_find_slot_with_hash (per_bfd->demangled_names_hash.get (), |
e76b2246 | 1014 | &entry, *hash, INSERT)); |
2de7ced7 | 1015 | |
57d75002 CB |
1016 | /* The const_cast is safe because the only reason it is already |
1017 | initialized is if we purposefully set it from a background | |
1018 | thread to avoid doing the work here. However, it is still | |
1019 | allocated from the heap and needs to be freed by us, just | |
1020 | like if we called symbol_find_demangled_name here. If this is | |
1021 | nullptr, we call symbol_find_demangled_name below, but we put | |
1022 | this smart pointer here to be sure that we don't leak this name. */ | |
1023 | gdb::unique_xmalloc_ptr<char> demangled_name | |
1024 | (const_cast<char *> (language_specific.demangled_name)); | |
1025 | ||
2de7ced7 | 1026 | /* If this name is not in the hash table, add it. */ |
a766d390 DE |
1027 | if (*slot == NULL |
1028 | /* A C version of the symbol may have already snuck into the table. | |
1029 | This happens to, e.g., main.init (__go_init_main). Cope. */ | |
4d4eaa30 | 1030 | || (language () == language_go && (*slot)->demangled == nullptr)) |
2de7ced7 | 1031 | { |
0c921b21 | 1032 | /* A 0-terminated copy of the linkage name. Callers must set COPY_NAME |
dda83cd7 SM |
1033 | to true if the string might not be nullterminated. We have to make |
1034 | this copy because demangling needs a nullterminated string. */ | |
8082468f | 1035 | std::string_view linkage_name_copy; |
0c921b21 CB |
1036 | if (copy_name) |
1037 | { | |
31edb802 CB |
1038 | char *alloc_name = (char *) alloca (linkage_name.length () + 1); |
1039 | memcpy (alloc_name, linkage_name.data (), linkage_name.length ()); | |
1040 | alloc_name[linkage_name.length ()] = '\0'; | |
0c921b21 | 1041 | |
8082468f | 1042 | linkage_name_copy = std::string_view (alloc_name, |
31edb802 | 1043 | linkage_name.length ()); |
0c921b21 CB |
1044 | } |
1045 | else | |
1046 | linkage_name_copy = linkage_name; | |
1047 | ||
57d75002 | 1048 | if (demangled_name.get () == nullptr) |
3456e70c TT |
1049 | demangled_name |
1050 | = symbol_find_demangled_name (this, linkage_name_copy.data ()); | |
2de7ced7 | 1051 | |
04a679b8 | 1052 | /* Suppose we have demangled_name==NULL, copy_name==0, and |
9c37b5ae | 1053 | linkage_name_copy==linkage_name. In this case, we already have the |
04a679b8 TT |
1054 | mangled name saved, and we don't have a demangled name. So, |
1055 | you might think we could save a little space by not recording | |
1056 | this in the hash table at all. | |
5396ae17 | 1057 | |
04a679b8 TT |
1058 | It turns out that it is actually important to still save such |
1059 | an entry in the hash table, because storing this name gives | |
705b5767 | 1060 | us better bcache hit rates for partial symbols. */ |
0c921b21 | 1061 | if (!copy_name) |
04a679b8 | 1062 | { |
224c3ddb SM |
1063 | *slot |
1064 | = ((struct demangled_name_entry *) | |
1065 | obstack_alloc (&per_bfd->storage_obstack, | |
5396ae17 | 1066 | sizeof (demangled_name_entry))); |
31edb802 | 1067 | new (*slot) demangled_name_entry (linkage_name); |
04a679b8 TT |
1068 | } |
1069 | else | |
1070 | { | |
1071 | /* If we must copy the mangled name, put it directly after | |
5396ae17 | 1072 | the struct so we can have a single allocation. */ |
224c3ddb SM |
1073 | *slot |
1074 | = ((struct demangled_name_entry *) | |
1075 | obstack_alloc (&per_bfd->storage_obstack, | |
31edb802 CB |
1076 | sizeof (demangled_name_entry) |
1077 | + linkage_name.length () + 1)); | |
5396ae17 | 1078 | char *mangled_ptr = reinterpret_cast<char *> (*slot + 1); |
31edb802 CB |
1079 | memcpy (mangled_ptr, linkage_name.data (), linkage_name.length ()); |
1080 | mangled_ptr [linkage_name.length ()] = '\0'; | |
3a494279 | 1081 | new (*slot) demangled_name_entry |
8082468f | 1082 | (std::string_view (mangled_ptr, linkage_name.length ())); |
04a679b8 | 1083 | } |
d55c9a68 | 1084 | (*slot)->demangled = std::move (demangled_name); |
4d4eaa30 | 1085 | (*slot)->language = language (); |
2de7ced7 | 1086 | } |
129bce36 | 1087 | else if (language () == language_unknown) |
4d4eaa30 | 1088 | m_language = (*slot)->language; |
2de7ced7 | 1089 | |
4d4eaa30 | 1090 | m_name = (*slot)->mangled.data (); |
ff985671 | 1091 | set_demangled_name ((*slot)->demangled.get (), &per_bfd->storage_obstack); |
2de7ced7 DJ |
1092 | } |
1093 | ||
c9d95fa3 | 1094 | /* See symtab.h. */ |
22abf04a | 1095 | |
0d5cff50 | 1096 | const char * |
c9d95fa3 | 1097 | general_symbol_info::natural_name () const |
22abf04a | 1098 | { |
c1b5c1eb | 1099 | switch (language ()) |
22abf04a | 1100 | { |
1f8173e6 | 1101 | case language_cplus: |
6aecb9c2 | 1102 | case language_d: |
a766d390 | 1103 | case language_go: |
1f8173e6 | 1104 | case language_objc: |
f55ee35c | 1105 | case language_fortran: |
8c87a452 | 1106 | case language_rust: |
7151c1af TT |
1107 | if (language_specific.demangled_name != nullptr) |
1108 | return language_specific.demangled_name; | |
1f8173e6 PH |
1109 | break; |
1110 | case language_ada: | |
c9d95fa3 | 1111 | return ada_decode_symbol (this); |
1f8173e6 PH |
1112 | default: |
1113 | break; | |
22abf04a | 1114 | } |
4d4eaa30 | 1115 | return linkage_name (); |
22abf04a DC |
1116 | } |
1117 | ||
c9d95fa3 | 1118 | /* See symtab.h. */ |
eca864fe | 1119 | |
0d5cff50 | 1120 | const char * |
c9d95fa3 | 1121 | general_symbol_info::demangled_name () const |
9cc0d196 | 1122 | { |
c6e5ee5e SDJ |
1123 | const char *dem_name = NULL; |
1124 | ||
c1b5c1eb | 1125 | switch (language ()) |
1f8173e6 PH |
1126 | { |
1127 | case language_cplus: | |
6aecb9c2 | 1128 | case language_d: |
a766d390 | 1129 | case language_go: |
1f8173e6 | 1130 | case language_objc: |
f55ee35c | 1131 | case language_fortran: |
8c87a452 | 1132 | case language_rust: |
7151c1af | 1133 | dem_name = language_specific.demangled_name; |
1f8173e6 PH |
1134 | break; |
1135 | case language_ada: | |
c9d95fa3 | 1136 | dem_name = ada_decode_symbol (this); |
1f8173e6 PH |
1137 | break; |
1138 | default: | |
1139 | break; | |
1140 | } | |
c6e5ee5e | 1141 | return dem_name; |
9cc0d196 | 1142 | } |
fe39c653 | 1143 | |
c9d95fa3 | 1144 | /* See symtab.h. */ |
eca864fe | 1145 | |
0d5cff50 | 1146 | const char * |
c9d95fa3 | 1147 | general_symbol_info::search_name () const |
fc062ac6 | 1148 | { |
c1b5c1eb | 1149 | if (language () == language_ada) |
4d4eaa30 | 1150 | return linkage_name (); |
1f8173e6 | 1151 | else |
c9d95fa3 | 1152 | return natural_name (); |
4725b721 | 1153 | } |
b5ec771e PA |
1154 | |
1155 | /* See symtab.h. */ | |
1156 | ||
ebbc3a7d AB |
1157 | struct obj_section * |
1158 | general_symbol_info::obj_section (const struct objfile *objfile) const | |
1159 | { | |
a52d653e | 1160 | if (section_index () >= 0) |
9ed8433a | 1161 | return &objfile->sections_start[section_index ()]; |
ebbc3a7d AB |
1162 | return nullptr; |
1163 | } | |
1164 | ||
1165 | /* See symtab.h. */ | |
1166 | ||
b5ec771e PA |
1167 | bool |
1168 | symbol_matches_search_name (const struct general_symbol_info *gsymbol, | |
1169 | const lookup_name_info &name) | |
1170 | { | |
1171 | symbol_name_matcher_ftype *name_match | |
c9debfb9 | 1172 | = language_def (gsymbol->language ())->get_symbol_name_matcher (name); |
c9d95fa3 | 1173 | return name_match (gsymbol->search_name (), name, NULL); |
b5ec771e PA |
1174 | } |
1175 | ||
c906108c SS |
1176 | \f |
1177 | ||
ececd218 | 1178 | /* Return true if the two sections are the same, or if they could |
94277a38 DJ |
1179 | plausibly be copies of each other, one in an original object |
1180 | file and another in a separated debug file. */ | |
1181 | ||
ececd218 | 1182 | bool |
714835d5 UW |
1183 | matching_obj_sections (struct obj_section *obj_first, |
1184 | struct obj_section *obj_second) | |
94277a38 | 1185 | { |
714835d5 UW |
1186 | asection *first = obj_first? obj_first->the_bfd_section : NULL; |
1187 | asection *second = obj_second? obj_second->the_bfd_section : NULL; | |
94277a38 DJ |
1188 | |
1189 | /* If they're the same section, then they match. */ | |
1190 | if (first == second) | |
ececd218 | 1191 | return true; |
94277a38 DJ |
1192 | |
1193 | /* If either is NULL, give up. */ | |
1194 | if (first == NULL || second == NULL) | |
ececd218 | 1195 | return false; |
94277a38 DJ |
1196 | |
1197 | /* This doesn't apply to absolute symbols. */ | |
1198 | if (first->owner == NULL || second->owner == NULL) | |
ececd218 | 1199 | return false; |
94277a38 DJ |
1200 | |
1201 | /* If they're in the same object file, they must be different sections. */ | |
1202 | if (first->owner == second->owner) | |
ececd218 | 1203 | return false; |
94277a38 DJ |
1204 | |
1205 | /* Check whether the two sections are potentially corresponding. They must | |
1206 | have the same size, address, and name. We can't compare section indexes, | |
1207 | which would be more reliable, because some sections may have been | |
1208 | stripped. */ | |
fd361982 | 1209 | if (bfd_section_size (first) != bfd_section_size (second)) |
ececd218 | 1210 | return false; |
94277a38 | 1211 | |
818f79f6 | 1212 | /* In-memory addresses may start at a different offset, relativize them. */ |
fd361982 AM |
1213 | if (bfd_section_vma (first) - bfd_get_start_address (first->owner) |
1214 | != bfd_section_vma (second) - bfd_get_start_address (second->owner)) | |
ececd218 | 1215 | return false; |
94277a38 | 1216 | |
fd361982 AM |
1217 | if (bfd_section_name (first) == NULL |
1218 | || bfd_section_name (second) == NULL | |
1219 | || strcmp (bfd_section_name (first), bfd_section_name (second)) != 0) | |
ececd218 | 1220 | return false; |
94277a38 DJ |
1221 | |
1222 | /* Otherwise check that they are in corresponding objfiles. */ | |
1223 | ||
9d7c67bf | 1224 | struct objfile *obj = NULL; |
2030c079 | 1225 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
1226 | if (objfile->obfd == first->owner) |
1227 | { | |
1228 | obj = objfile; | |
1229 | break; | |
1230 | } | |
94277a38 DJ |
1231 | gdb_assert (obj != NULL); |
1232 | ||
1233 | if (obj->separate_debug_objfile != NULL | |
1234 | && obj->separate_debug_objfile->obfd == second->owner) | |
ececd218 | 1235 | return true; |
94277a38 DJ |
1236 | if (obj->separate_debug_objfile_backlink != NULL |
1237 | && obj->separate_debug_objfile_backlink->obfd == second->owner) | |
ececd218 | 1238 | return true; |
94277a38 | 1239 | |
ececd218 | 1240 | return false; |
94277a38 | 1241 | } |
c906108c | 1242 | \f |
f57d2163 DE |
1243 | /* Hash function for the symbol cache. */ |
1244 | ||
1245 | static unsigned int | |
1246 | hash_symbol_entry (const struct objfile *objfile_context, | |
ccf41c24 | 1247 | const char *name, domain_search_flags domain) |
f57d2163 DE |
1248 | { |
1249 | unsigned int hash = (uintptr_t) objfile_context; | |
1250 | ||
1251 | if (name != NULL) | |
1252 | hash += htab_hash_string (name); | |
1253 | ||
ccf41c24 | 1254 | hash += domain * 7; |
f57d2163 DE |
1255 | |
1256 | return hash; | |
1257 | } | |
1258 | ||
1259 | /* Equality function for the symbol cache. */ | |
1260 | ||
1261 | static int | |
1262 | eq_symbol_entry (const struct symbol_cache_slot *slot, | |
1263 | const struct objfile *objfile_context, | |
ccf41c24 | 1264 | const char *name, domain_search_flags domain) |
f57d2163 DE |
1265 | { |
1266 | const char *slot_name; | |
f57d2163 DE |
1267 | |
1268 | if (slot->state == SYMBOL_SLOT_UNUSED) | |
1269 | return 0; | |
1270 | ||
1271 | if (slot->objfile_context != objfile_context) | |
1272 | return 0; | |
1273 | ||
ccf41c24 | 1274 | domain_search_flags slot_domain = slot->domain; |
f57d2163 | 1275 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) |
ccf41c24 | 1276 | slot_name = slot->value.name; |
f57d2163 | 1277 | else |
ccf41c24 | 1278 | slot_name = slot->value.found.symbol->search_name (); |
f57d2163 DE |
1279 | |
1280 | /* NULL names match. */ | |
1281 | if (slot_name == NULL && name == NULL) | |
1282 | { | |
1283 | /* But there's no point in calling symbol_matches_domain in the | |
1284 | SYMBOL_SLOT_FOUND case. */ | |
1285 | if (slot_domain != domain) | |
1286 | return 0; | |
1287 | } | |
1288 | else if (slot_name != NULL && name != NULL) | |
1289 | { | |
b5ec771e PA |
1290 | /* It's important that we use the same comparison that was done |
1291 | the first time through. If the slot records a found symbol, | |
1292 | then this means using the symbol name comparison function of | |
987012b8 | 1293 | the symbol's language with symbol->search_name (). See |
ccf41c24 | 1294 | dictionary.c. |
f57d2163 DE |
1295 | |
1296 | If the slot records a not-found symbol, then require a precise match. | |
1297 | We could still be lax with whitespace like strcmp_iw though. */ | |
1298 | ||
ccf41c24 TT |
1299 | if (slot_domain != domain) |
1300 | return 0; | |
1301 | ||
f57d2163 DE |
1302 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) |
1303 | { | |
1304 | if (strcmp (slot_name, name) != 0) | |
1305 | return 0; | |
f57d2163 DE |
1306 | } |
1307 | else | |
1308 | { | |
d12307c1 | 1309 | struct symbol *sym = slot->value.found.symbol; |
b5ec771e | 1310 | lookup_name_info lookup_name (name, symbol_name_match_type::FULL); |
f57d2163 | 1311 | |
81e32b6a | 1312 | if (!symbol_matches_search_name (sym, lookup_name)) |
f57d2163 | 1313 | return 0; |
f57d2163 DE |
1314 | } |
1315 | } | |
1316 | else | |
1317 | { | |
1318 | /* Only one name is NULL. */ | |
1319 | return 0; | |
1320 | } | |
1321 | ||
1322 | return 1; | |
1323 | } | |
1324 | ||
1325 | /* Given a cache of size SIZE, return the size of the struct (with variable | |
1326 | length array) in bytes. */ | |
1327 | ||
1328 | static size_t | |
1329 | symbol_cache_byte_size (unsigned int size) | |
1330 | { | |
1331 | return (sizeof (struct block_symbol_cache) | |
1332 | + ((size - 1) * sizeof (struct symbol_cache_slot))); | |
1333 | } | |
1334 | ||
1335 | /* Resize CACHE. */ | |
1336 | ||
1337 | static void | |
1338 | resize_symbol_cache (struct symbol_cache *cache, unsigned int new_size) | |
1339 | { | |
1340 | /* If there's no change in size, don't do anything. | |
1341 | All caches have the same size, so we can just compare with the size | |
1342 | of the global symbols cache. */ | |
1343 | if ((cache->global_symbols != NULL | |
1344 | && cache->global_symbols->size == new_size) | |
1345 | || (cache->global_symbols == NULL | |
1346 | && new_size == 0)) | |
1347 | return; | |
1348 | ||
82f910ea PW |
1349 | destroy_block_symbol_cache (cache->global_symbols); |
1350 | destroy_block_symbol_cache (cache->static_symbols); | |
f57d2163 DE |
1351 | |
1352 | if (new_size == 0) | |
1353 | { | |
1354 | cache->global_symbols = NULL; | |
1355 | cache->static_symbols = NULL; | |
1356 | } | |
1357 | else | |
1358 | { | |
1359 | size_t total_size = symbol_cache_byte_size (new_size); | |
1360 | ||
224c3ddb SM |
1361 | cache->global_symbols |
1362 | = (struct block_symbol_cache *) xcalloc (1, total_size); | |
1363 | cache->static_symbols | |
1364 | = (struct block_symbol_cache *) xcalloc (1, total_size); | |
f57d2163 DE |
1365 | cache->global_symbols->size = new_size; |
1366 | cache->static_symbols->size = new_size; | |
1367 | } | |
1368 | } | |
1369 | ||
f57d2163 DE |
1370 | /* Return the symbol cache of PSPACE. |
1371 | Create one if it doesn't exist yet. */ | |
1372 | ||
1373 | static struct symbol_cache * | |
1374 | get_symbol_cache (struct program_space *pspace) | |
1375 | { | |
3017b94d | 1376 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 DE |
1377 | |
1378 | if (cache == NULL) | |
1379 | { | |
3017b94d TT |
1380 | cache = symbol_cache_key.emplace (pspace); |
1381 | resize_symbol_cache (cache, symbol_cache_size); | |
f57d2163 DE |
1382 | } |
1383 | ||
1384 | return cache; | |
1385 | } | |
1386 | ||
f57d2163 DE |
1387 | /* Set the size of the symbol cache in all program spaces. */ |
1388 | ||
1389 | static void | |
1390 | set_symbol_cache_size (unsigned int new_size) | |
1391 | { | |
94c93c35 | 1392 | for (struct program_space *pspace : program_spaces) |
f57d2163 | 1393 | { |
3017b94d | 1394 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 DE |
1395 | |
1396 | /* The pspace could have been created but not have a cache yet. */ | |
1397 | if (cache != NULL) | |
1398 | resize_symbol_cache (cache, new_size); | |
1399 | } | |
1400 | } | |
1401 | ||
1402 | /* Called when symbol-cache-size is set. */ | |
1403 | ||
1404 | static void | |
eb4c3f4a | 1405 | set_symbol_cache_size_handler (const char *args, int from_tty, |
f57d2163 DE |
1406 | struct cmd_list_element *c) |
1407 | { | |
1408 | if (new_symbol_cache_size > MAX_SYMBOL_CACHE_SIZE) | |
1409 | { | |
1410 | /* Restore the previous value. | |
1411 | This is the value the "show" command prints. */ | |
1412 | new_symbol_cache_size = symbol_cache_size; | |
1413 | ||
1414 | error (_("Symbol cache size is too large, max is %u."), | |
1415 | MAX_SYMBOL_CACHE_SIZE); | |
1416 | } | |
1417 | symbol_cache_size = new_symbol_cache_size; | |
1418 | ||
1419 | set_symbol_cache_size (symbol_cache_size); | |
1420 | } | |
1421 | ||
1422 | /* Lookup symbol NAME,DOMAIN in BLOCK in the symbol cache of PSPACE. | |
1423 | OBJFILE_CONTEXT is the current objfile, which may be NULL. | |
1424 | The result is the symbol if found, SYMBOL_LOOKUP_FAILED if a previous lookup | |
1425 | failed (and thus this one will too), or NULL if the symbol is not present | |
1426 | in the cache. | |
d0509ba4 CB |
1427 | *BSC_PTR and *SLOT_PTR are set to the cache and slot of the symbol, which |
1428 | can be used to save the result of a full lookup attempt. */ | |
f57d2163 | 1429 | |
d12307c1 | 1430 | static struct block_symbol |
f57d2163 | 1431 | symbol_cache_lookup (struct symbol_cache *cache, |
ddbcedf5 | 1432 | struct objfile *objfile_context, enum block_enum block, |
ccf41c24 | 1433 | const char *name, domain_search_flags domain, |
f57d2163 DE |
1434 | struct block_symbol_cache **bsc_ptr, |
1435 | struct symbol_cache_slot **slot_ptr) | |
1436 | { | |
1437 | struct block_symbol_cache *bsc; | |
1438 | unsigned int hash; | |
1439 | struct symbol_cache_slot *slot; | |
1440 | ||
1441 | if (block == GLOBAL_BLOCK) | |
1442 | bsc = cache->global_symbols; | |
1443 | else | |
1444 | bsc = cache->static_symbols; | |
1445 | if (bsc == NULL) | |
1446 | { | |
1447 | *bsc_ptr = NULL; | |
1448 | *slot_ptr = NULL; | |
6640a367 | 1449 | return {}; |
f57d2163 DE |
1450 | } |
1451 | ||
1452 | hash = hash_symbol_entry (objfile_context, name, domain); | |
1453 | slot = bsc->symbols + hash % bsc->size; | |
f57d2163 | 1454 | |
d0509ba4 CB |
1455 | *bsc_ptr = bsc; |
1456 | *slot_ptr = slot; | |
1457 | ||
f57d2163 DE |
1458 | if (eq_symbol_entry (slot, objfile_context, name, domain)) |
1459 | { | |
b1e678d9 AB |
1460 | symbol_lookup_debug_printf ("%s block symbol cache hit%s for %s, %s", |
1461 | block == GLOBAL_BLOCK ? "Global" : "Static", | |
1462 | slot->state == SYMBOL_SLOT_NOT_FOUND | |
1463 | ? " (not found)" : "", name, | |
ccf41c24 | 1464 | domain_name (domain).c_str ()); |
f57d2163 DE |
1465 | ++bsc->hits; |
1466 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
1467 | return SYMBOL_LOOKUP_FAILED; | |
1468 | return slot->value.found; | |
1469 | } | |
1470 | ||
2c26b84f DE |
1471 | /* Symbol is not present in the cache. */ |
1472 | ||
b1e678d9 AB |
1473 | symbol_lookup_debug_printf ("%s block symbol cache miss for %s, %s", |
1474 | block == GLOBAL_BLOCK ? "Global" : "Static", | |
ccf41c24 | 1475 | name, domain_name (domain).c_str ()); |
f57d2163 | 1476 | ++bsc->misses; |
6640a367 | 1477 | return {}; |
f57d2163 DE |
1478 | } |
1479 | ||
f57d2163 DE |
1480 | /* Mark SYMBOL as found in SLOT. |
1481 | OBJFILE_CONTEXT is the current objfile when the lookup was done, or NULL | |
1482 | if it's not needed to distinguish lookups (STATIC_BLOCK). It is *not* | |
1483 | necessarily the objfile the symbol was found in. */ | |
1484 | ||
1485 | static void | |
1486 | symbol_cache_mark_found (struct block_symbol_cache *bsc, | |
1487 | struct symbol_cache_slot *slot, | |
1488 | struct objfile *objfile_context, | |
d12307c1 | 1489 | struct symbol *symbol, |
ccf41c24 TT |
1490 | const struct block *block, |
1491 | domain_search_flags domain) | |
f57d2163 DE |
1492 | { |
1493 | if (bsc == NULL) | |
1494 | return; | |
1495 | if (slot->state != SYMBOL_SLOT_UNUSED) | |
1496 | { | |
1497 | ++bsc->collisions; | |
1498 | symbol_cache_clear_slot (slot); | |
1499 | } | |
1500 | slot->state = SYMBOL_SLOT_FOUND; | |
1501 | slot->objfile_context = objfile_context; | |
d12307c1 PMR |
1502 | slot->value.found.symbol = symbol; |
1503 | slot->value.found.block = block; | |
ccf41c24 | 1504 | slot->domain = domain; |
f57d2163 DE |
1505 | } |
1506 | ||
1507 | /* Mark symbol NAME, DOMAIN as not found in SLOT. | |
1508 | OBJFILE_CONTEXT is the current objfile when the lookup was done, or NULL | |
1509 | if it's not needed to distinguish lookups (STATIC_BLOCK). */ | |
1510 | ||
1511 | static void | |
1512 | symbol_cache_mark_not_found (struct block_symbol_cache *bsc, | |
1513 | struct symbol_cache_slot *slot, | |
1514 | struct objfile *objfile_context, | |
ccf41c24 | 1515 | const char *name, domain_search_flags domain) |
f57d2163 DE |
1516 | { |
1517 | if (bsc == NULL) | |
1518 | return; | |
1519 | if (slot->state != SYMBOL_SLOT_UNUSED) | |
1520 | { | |
1521 | ++bsc->collisions; | |
1522 | symbol_cache_clear_slot (slot); | |
1523 | } | |
1524 | slot->state = SYMBOL_SLOT_NOT_FOUND; | |
1525 | slot->objfile_context = objfile_context; | |
ccf41c24 TT |
1526 | slot->value.name = xstrdup (name); |
1527 | slot->domain = domain; | |
f57d2163 DE |
1528 | } |
1529 | ||
1530 | /* Flush the symbol cache of PSPACE. */ | |
1531 | ||
1532 | static void | |
1533 | symbol_cache_flush (struct program_space *pspace) | |
1534 | { | |
3017b94d | 1535 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 | 1536 | int pass; |
f57d2163 DE |
1537 | |
1538 | if (cache == NULL) | |
1539 | return; | |
1540 | if (cache->global_symbols == NULL) | |
1541 | { | |
1542 | gdb_assert (symbol_cache_size == 0); | |
1543 | gdb_assert (cache->static_symbols == NULL); | |
1544 | return; | |
1545 | } | |
1546 | ||
1547 | /* If the cache is untouched since the last flush, early exit. | |
1548 | This is important for performance during the startup of a program linked | |
1549 | with 100s (or 1000s) of shared libraries. */ | |
1550 | if (cache->global_symbols->misses == 0 | |
1551 | && cache->static_symbols->misses == 0) | |
1552 | return; | |
1553 | ||
1554 | gdb_assert (cache->global_symbols->size == symbol_cache_size); | |
1555 | gdb_assert (cache->static_symbols->size == symbol_cache_size); | |
1556 | ||
1557 | for (pass = 0; pass < 2; ++pass) | |
1558 | { | |
1559 | struct block_symbol_cache *bsc | |
1560 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1561 | unsigned int i; | |
1562 | ||
1563 | for (i = 0; i < bsc->size; ++i) | |
1564 | symbol_cache_clear_slot (&bsc->symbols[i]); | |
1565 | } | |
1566 | ||
1567 | cache->global_symbols->hits = 0; | |
1568 | cache->global_symbols->misses = 0; | |
1569 | cache->global_symbols->collisions = 0; | |
1570 | cache->static_symbols->hits = 0; | |
1571 | cache->static_symbols->misses = 0; | |
1572 | cache->static_symbols->collisions = 0; | |
1573 | } | |
1574 | ||
1575 | /* Dump CACHE. */ | |
1576 | ||
1577 | static void | |
1578 | symbol_cache_dump (const struct symbol_cache *cache) | |
1579 | { | |
1580 | int pass; | |
1581 | ||
1582 | if (cache->global_symbols == NULL) | |
1583 | { | |
6cb06a8c | 1584 | gdb_printf (" <disabled>\n"); |
f57d2163 DE |
1585 | return; |
1586 | } | |
1587 | ||
1588 | for (pass = 0; pass < 2; ++pass) | |
1589 | { | |
1590 | const struct block_symbol_cache *bsc | |
1591 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1592 | unsigned int i; | |
1593 | ||
1594 | if (pass == 0) | |
6cb06a8c | 1595 | gdb_printf ("Global symbols:\n"); |
f57d2163 | 1596 | else |
6cb06a8c | 1597 | gdb_printf ("Static symbols:\n"); |
f57d2163 DE |
1598 | |
1599 | for (i = 0; i < bsc->size; ++i) | |
1600 | { | |
1601 | const struct symbol_cache_slot *slot = &bsc->symbols[i]; | |
1602 | ||
1603 | QUIT; | |
1604 | ||
1605 | switch (slot->state) | |
1606 | { | |
1607 | case SYMBOL_SLOT_UNUSED: | |
1608 | break; | |
1609 | case SYMBOL_SLOT_NOT_FOUND: | |
6cb06a8c TT |
1610 | gdb_printf (" [%4u] = %s, %s %s (not found)\n", i, |
1611 | host_address_to_string (slot->objfile_context), | |
ccf41c24 TT |
1612 | slot->value.name, |
1613 | domain_name (slot->domain).c_str ()); | |
f57d2163 DE |
1614 | break; |
1615 | case SYMBOL_SLOT_FOUND: | |
d12307c1 PMR |
1616 | { |
1617 | struct symbol *found = slot->value.found.symbol; | |
1618 | const struct objfile *context = slot->objfile_context; | |
1619 | ||
6cb06a8c TT |
1620 | gdb_printf (" [%4u] = %s, %s %s\n", i, |
1621 | host_address_to_string (context), | |
1622 | found->print_name (), | |
1623 | domain_name (found->domain ())); | |
d12307c1 PMR |
1624 | break; |
1625 | } | |
f57d2163 DE |
1626 | } |
1627 | } | |
1628 | } | |
1629 | } | |
1630 | ||
1631 | /* The "mt print symbol-cache" command. */ | |
1632 | ||
1633 | static void | |
510e5e56 | 1634 | maintenance_print_symbol_cache (const char *args, int from_tty) |
f57d2163 | 1635 | { |
94c93c35 | 1636 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1637 | { |
1638 | struct symbol_cache *cache; | |
1639 | ||
6cb06a8c TT |
1640 | gdb_printf (_("Symbol cache for pspace %d\n%s:\n"), |
1641 | pspace->num, | |
1642 | pspace->symfile_object_file != NULL | |
1643 | ? objfile_name (pspace->symfile_object_file) | |
1644 | : "(no object file)"); | |
f57d2163 DE |
1645 | |
1646 | /* If the cache hasn't been created yet, avoid creating one. */ | |
3017b94d | 1647 | cache = symbol_cache_key.get (pspace); |
f57d2163 | 1648 | if (cache == NULL) |
6cb06a8c | 1649 | gdb_printf (" <empty>\n"); |
f57d2163 DE |
1650 | else |
1651 | symbol_cache_dump (cache); | |
1652 | } | |
1653 | } | |
1654 | ||
1655 | /* The "mt flush-symbol-cache" command. */ | |
1656 | ||
1657 | static void | |
510e5e56 | 1658 | maintenance_flush_symbol_cache (const char *args, int from_tty) |
f57d2163 | 1659 | { |
94c93c35 | 1660 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1661 | { |
1662 | symbol_cache_flush (pspace); | |
1663 | } | |
1664 | } | |
1665 | ||
1666 | /* Print usage statistics of CACHE. */ | |
1667 | ||
1668 | static void | |
1669 | symbol_cache_stats (struct symbol_cache *cache) | |
1670 | { | |
1671 | int pass; | |
1672 | ||
1673 | if (cache->global_symbols == NULL) | |
1674 | { | |
6cb06a8c | 1675 | gdb_printf (" <disabled>\n"); |
f57d2163 DE |
1676 | return; |
1677 | } | |
1678 | ||
1679 | for (pass = 0; pass < 2; ++pass) | |
1680 | { | |
1681 | const struct block_symbol_cache *bsc | |
1682 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1683 | ||
1684 | QUIT; | |
1685 | ||
1686 | if (pass == 0) | |
6cb06a8c | 1687 | gdb_printf ("Global block cache stats:\n"); |
f57d2163 | 1688 | else |
6cb06a8c | 1689 | gdb_printf ("Static block cache stats:\n"); |
f57d2163 | 1690 | |
6cb06a8c TT |
1691 | gdb_printf (" size: %u\n", bsc->size); |
1692 | gdb_printf (" hits: %u\n", bsc->hits); | |
1693 | gdb_printf (" misses: %u\n", bsc->misses); | |
1694 | gdb_printf (" collisions: %u\n", bsc->collisions); | |
f57d2163 DE |
1695 | } |
1696 | } | |
1697 | ||
1698 | /* The "mt print symbol-cache-statistics" command. */ | |
1699 | ||
1700 | static void | |
510e5e56 | 1701 | maintenance_print_symbol_cache_statistics (const char *args, int from_tty) |
f57d2163 | 1702 | { |
94c93c35 | 1703 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1704 | { |
1705 | struct symbol_cache *cache; | |
1706 | ||
6cb06a8c TT |
1707 | gdb_printf (_("Symbol cache statistics for pspace %d\n%s:\n"), |
1708 | pspace->num, | |
1709 | pspace->symfile_object_file != NULL | |
1710 | ? objfile_name (pspace->symfile_object_file) | |
1711 | : "(no object file)"); | |
f57d2163 DE |
1712 | |
1713 | /* If the cache hasn't been created yet, avoid creating one. */ | |
3017b94d | 1714 | cache = symbol_cache_key.get (pspace); |
f57d2163 | 1715 | if (cache == NULL) |
6cb06a8c | 1716 | gdb_printf (" empty, no stats available\n"); |
f57d2163 DE |
1717 | else |
1718 | symbol_cache_stats (cache); | |
1719 | } | |
1720 | } | |
1721 | ||
1722 | /* This module's 'new_objfile' observer. */ | |
1723 | ||
1724 | static void | |
1725 | symtab_new_objfile_observer (struct objfile *objfile) | |
1726 | { | |
74daa597 SM |
1727 | symbol_cache_flush (objfile->pspace); |
1728 | } | |
1729 | ||
1730 | /* This module's 'all_objfiles_removed' observer. */ | |
1731 | ||
1732 | static void | |
1733 | symtab_all_objfiles_removed (program_space *pspace) | |
1734 | { | |
1735 | symbol_cache_flush (pspace); | |
a0a031bc | 1736 | |
74daa597 SM |
1737 | /* Forget everything we know about the main function. */ |
1738 | set_main_name (pspace, nullptr, language_unknown); | |
f57d2163 DE |
1739 | } |
1740 | ||
1741 | /* This module's 'free_objfile' observer. */ | |
1742 | ||
1743 | static void | |
1744 | symtab_free_objfile_observer (struct objfile *objfile) | |
1745 | { | |
1746 | symbol_cache_flush (objfile->pspace); | |
1747 | } | |
1748 | \f | |
49c1de0e | 1749 | /* See symtab.h. */ |
3f01c12b | 1750 | |
49c1de0e TT |
1751 | void |
1752 | fixup_symbol_section (struct symbol *sym, struct objfile *objfile) | |
c906108c | 1753 | { |
49c1de0e TT |
1754 | gdb_assert (sym != nullptr); |
1755 | gdb_assert (sym->is_objfile_owned ()); | |
1756 | gdb_assert (objfile != nullptr); | |
1757 | gdb_assert (sym->section_index () == -1); | |
1758 | ||
1759 | /* Note that if this ends up as -1, fixup_section will handle that | |
1760 | reasonably well. So, it's fine to use the objfile's section | |
1761 | index without doing the check that is done by the wrapper macros | |
1762 | like SECT_OFF_TEXT. */ | |
1763 | int fallback; | |
1764 | switch (sym->aclass ()) | |
1765 | { | |
1766 | case LOC_STATIC: | |
1767 | fallback = objfile->sect_index_data; | |
1768 | break; | |
1769 | ||
1770 | case LOC_LABEL: | |
1771 | fallback = objfile->sect_index_text; | |
1772 | break; | |
1773 | ||
1774 | default: | |
1775 | /* Nothing else will be listed in the minsyms -- no use looking | |
1776 | it up. */ | |
1777 | return; | |
1778 | } | |
1779 | ||
1780 | CORE_ADDR addr = sym->value_address (); | |
1781 | ||
c906108c | 1782 | struct minimal_symbol *msym; |
c906108c | 1783 | |
bccdca4a UW |
1784 | /* First, check whether a minimal symbol with the same name exists |
1785 | and points to the same address. The address check is required | |
1786 | e.g. on PowerPC64, where the minimal symbol for a function will | |
1787 | point to the function descriptor, while the debug symbol will | |
1788 | point to the actual function code. */ | |
49c1de0e | 1789 | msym = lookup_minimal_symbol_by_pc_name (addr, sym->linkage_name (), |
4d4eaa30 | 1790 | objfile); |
907fc202 | 1791 | if (msym) |
49c1de0e | 1792 | sym->set_section_index (msym->section_index ()); |
907fc202 | 1793 | else |
19e2d14b KB |
1794 | { |
1795 | /* Static, function-local variables do appear in the linker | |
1796 | (minimal) symbols, but are frequently given names that won't | |
1797 | be found via lookup_minimal_symbol(). E.g., it has been | |
1798 | observed in frv-uclinux (ELF) executables that a static, | |
1799 | function-local variable named "foo" might appear in the | |
1800 | linker symbols as "foo.6" or "foo.3". Thus, there is no | |
1801 | point in attempting to extend the lookup-by-name mechanism to | |
1802 | handle this case due to the fact that there can be multiple | |
1803 | names. | |
9af17804 | 1804 | |
19e2d14b KB |
1805 | So, instead, search the section table when lookup by name has |
1806 | failed. The ``addr'' and ``endaddr'' fields may have already | |
6a053cb1 TT |
1807 | been relocated. If so, the relocation offset needs to be |
1808 | subtracted from these values when performing the comparison. | |
1809 | We unconditionally subtract it, because, when no relocation | |
1810 | has been performed, the value will simply be zero. | |
9af17804 | 1811 | |
19e2d14b KB |
1812 | The address of the symbol whose section we're fixing up HAS |
1813 | NOT BEEN adjusted (relocated) yet. It can't have been since | |
1814 | the section isn't yet known and knowing the section is | |
1815 | necessary in order to add the correct relocation value. In | |
1816 | other words, we wouldn't even be in this function (attempting | |
1817 | to compute the section) if it were already known. | |
1818 | ||
1819 | Note that it is possible to search the minimal symbols | |
1820 | (subtracting the relocation value if necessary) to find the | |
1821 | matching minimal symbol, but this is overkill and much less | |
1822 | efficient. It is not necessary to find the matching minimal | |
9af17804 DE |
1823 | symbol, only its section. |
1824 | ||
19e2d14b KB |
1825 | Note that this technique (of doing a section table search) |
1826 | can fail when unrelocated section addresses overlap. For | |
1827 | this reason, we still attempt a lookup by name prior to doing | |
1828 | a search of the section table. */ | |
9af17804 | 1829 | |
5250cbc8 | 1830 | for (obj_section *s : objfile->sections ()) |
19e2d14b | 1831 | { |
49c1de0e TT |
1832 | if ((bfd_section_flags (s->the_bfd_section) & SEC_ALLOC) == 0) |
1833 | continue; | |
1834 | ||
9ed8433a | 1835 | int idx = s - objfile->sections_start; |
6a053cb1 | 1836 | CORE_ADDR offset = objfile->section_offsets[idx]; |
19e2d14b | 1837 | |
e27d198c TT |
1838 | if (fallback == -1) |
1839 | fallback = idx; | |
1840 | ||
0c1bcd23 | 1841 | if (s->addr () - offset <= addr && addr < s->endaddr () - offset) |
19e2d14b | 1842 | { |
49c1de0e | 1843 | sym->set_section_index (idx); |
19e2d14b KB |
1844 | return; |
1845 | } | |
1846 | } | |
e27d198c TT |
1847 | |
1848 | /* If we didn't find the section, assume it is in the first | |
1849 | section. If there is no allocated section, then it hardly | |
1850 | matters what we pick, so just pick zero. */ | |
1851 | if (fallback == -1) | |
49c1de0e | 1852 | sym->set_section_index (0); |
e27d198c | 1853 | else |
49c1de0e | 1854 | sym->set_section_index (fallback); |
19e2d14b | 1855 | } |
c906108c SS |
1856 | } |
1857 | ||
b5ec771e PA |
1858 | /* See symtab.h. */ |
1859 | ||
1860 | demangle_for_lookup_info::demangle_for_lookup_info | |
1861 | (const lookup_name_info &lookup_name, language lang) | |
1862 | { | |
1863 | demangle_result_storage storage; | |
1864 | ||
c62446b1 PA |
1865 | if (lookup_name.ignore_parameters () && lang == language_cplus) |
1866 | { | |
1867 | gdb::unique_xmalloc_ptr<char> without_params | |
e0802d59 | 1868 | = cp_remove_params_if_any (lookup_name.c_str (), |
c62446b1 PA |
1869 | lookup_name.completion_mode ()); |
1870 | ||
1871 | if (without_params != NULL) | |
1872 | { | |
de63c46b PA |
1873 | if (lookup_name.match_type () != symbol_name_match_type::SEARCH_NAME) |
1874 | m_demangled_name = demangle_for_lookup (without_params.get (), | |
1875 | lang, storage); | |
c62446b1 PA |
1876 | return; |
1877 | } | |
1878 | } | |
1879 | ||
de63c46b | 1880 | if (lookup_name.match_type () == symbol_name_match_type::SEARCH_NAME) |
e0802d59 | 1881 | m_demangled_name = lookup_name.c_str (); |
de63c46b | 1882 | else |
e0802d59 | 1883 | m_demangled_name = demangle_for_lookup (lookup_name.c_str (), |
de63c46b | 1884 | lang, storage); |
b5ec771e PA |
1885 | } |
1886 | ||
1887 | /* See symtab.h. */ | |
1888 | ||
1889 | const lookup_name_info & | |
1890 | lookup_name_info::match_any () | |
1891 | { | |
1892 | /* Lookup any symbol that "" would complete. I.e., this matches all | |
1893 | symbol names. */ | |
e0802d59 | 1894 | static const lookup_name_info lookup_name ("", symbol_name_match_type::FULL, |
b5ec771e PA |
1895 | true); |
1896 | ||
1897 | return lookup_name; | |
1898 | } | |
1899 | ||
f8eba3c6 | 1900 | /* Compute the demangled form of NAME as used by the various symbol |
2f408ecb PA |
1901 | lookup functions. The result can either be the input NAME |
1902 | directly, or a pointer to a buffer owned by the STORAGE object. | |
f8eba3c6 | 1903 | |
2f408ecb | 1904 | For Ada, this function just returns NAME, unmodified. |
f8eba3c6 TT |
1905 | Normally, Ada symbol lookups are performed using the encoded name |
1906 | rather than the demangled name, and so it might seem to make sense | |
1907 | for this function to return an encoded version of NAME. | |
1908 | Unfortunately, we cannot do this, because this function is used in | |
1909 | circumstances where it is not appropriate to try to encode NAME. | |
1910 | For instance, when displaying the frame info, we demangle the name | |
1911 | of each parameter, and then perform a symbol lookup inside our | |
1912 | function using that demangled name. In Ada, certain functions | |
1913 | have internally-generated parameters whose name contain uppercase | |
1914 | characters. Encoding those name would result in those uppercase | |
1915 | characters to become lowercase, and thus cause the symbol lookup | |
1916 | to fail. */ | |
c906108c | 1917 | |
2f408ecb | 1918 | const char * |
f8eba3c6 | 1919 | demangle_for_lookup (const char *name, enum language lang, |
2f408ecb | 1920 | demangle_result_storage &storage) |
c906108c | 1921 | { |
9c37b5ae | 1922 | /* If we are using C++, D, or Go, demangle the name before doing a |
c378eb4e | 1923 | lookup, so we can always binary search. */ |
53c5240f | 1924 | if (lang == language_cplus) |
729051e6 | 1925 | { |
3456e70c TT |
1926 | gdb::unique_xmalloc_ptr<char> demangled_name |
1927 | = gdb_demangle (name, DMGL_ANSI | DMGL_PARAMS); | |
2f408ecb | 1928 | if (demangled_name != NULL) |
3456e70c | 1929 | return storage.set_malloc_ptr (std::move (demangled_name)); |
2f408ecb PA |
1930 | |
1931 | /* If we were given a non-mangled name, canonicalize it | |
1932 | according to the language (so far only for C++). */ | |
596dc4ad TT |
1933 | gdb::unique_xmalloc_ptr<char> canon = cp_canonicalize_string (name); |
1934 | if (canon != nullptr) | |
1935 | return storage.set_malloc_ptr (std::move (canon)); | |
729051e6 | 1936 | } |
6aecb9c2 JB |
1937 | else if (lang == language_d) |
1938 | { | |
3456e70c | 1939 | gdb::unique_xmalloc_ptr<char> demangled_name = d_demangle (name, 0); |
2f408ecb | 1940 | if (demangled_name != NULL) |
3456e70c | 1941 | return storage.set_malloc_ptr (std::move (demangled_name)); |
6aecb9c2 | 1942 | } |
a766d390 DE |
1943 | else if (lang == language_go) |
1944 | { | |
3456e70c | 1945 | gdb::unique_xmalloc_ptr<char> demangled_name |
82fc57fd | 1946 | = language_def (language_go)->demangle_symbol (name, 0); |
2f408ecb | 1947 | if (demangled_name != NULL) |
3456e70c | 1948 | return storage.set_malloc_ptr (std::move (demangled_name)); |
a766d390 | 1949 | } |
729051e6 | 1950 | |
2f408ecb | 1951 | return name; |
f8eba3c6 TT |
1952 | } |
1953 | ||
5ffa0793 PA |
1954 | /* See symtab.h. */ |
1955 | ||
1956 | unsigned int | |
1957 | search_name_hash (enum language language, const char *search_name) | |
1958 | { | |
fb8006fd | 1959 | return language_def (language)->search_name_hash (search_name); |
5ffa0793 PA |
1960 | } |
1961 | ||
cf901d3b | 1962 | /* See symtab.h. |
f8eba3c6 | 1963 | |
cf901d3b | 1964 | This function (or rather its subordinates) have a bunch of loops and |
7e082072 DE |
1965 | it would seem to be attractive to put in some QUIT's (though I'm not really |
1966 | sure whether it can run long enough to be really important). But there | |
f8eba3c6 | 1967 | are a few calls for which it would appear to be bad news to quit |
7e082072 | 1968 | out of here: e.g., find_proc_desc in alpha-mdebug-tdep.c. (Note |
f8eba3c6 TT |
1969 | that there is C++ code below which can error(), but that probably |
1970 | doesn't affect these calls since they are looking for a known | |
1971 | variable and thus can probably assume it will never hit the C++ | |
1972 | code). */ | |
1973 | ||
d12307c1 | 1974 | struct block_symbol |
f8eba3c6 | 1975 | lookup_symbol_in_language (const char *name, const struct block *block, |
ccf41c24 TT |
1976 | const domain_search_flags domain, |
1977 | enum language lang, | |
1993b719 | 1978 | struct field_of_this_result *is_a_field_of_this) |
f8eba3c6 | 1979 | { |
2698da26 AB |
1980 | SYMBOL_LOOKUP_SCOPED_DEBUG_ENTER_EXIT; |
1981 | ||
2f408ecb PA |
1982 | demangle_result_storage storage; |
1983 | const char *modified_name = demangle_for_lookup (name, lang, storage); | |
f8eba3c6 | 1984 | |
de63c46b PA |
1985 | return lookup_symbol_aux (modified_name, |
1986 | symbol_name_match_type::FULL, | |
1987 | block, domain, lang, | |
2f408ecb | 1988 | is_a_field_of_this); |
fba7f19c EZ |
1989 | } |
1990 | ||
cf901d3b | 1991 | /* See symtab.h. */ |
53c5240f | 1992 | |
d12307c1 | 1993 | struct block_symbol |
53c5240f | 1994 | lookup_symbol (const char *name, const struct block *block, |
ccf41c24 | 1995 | domain_search_flags domain, |
1993b719 | 1996 | struct field_of_this_result *is_a_field_of_this) |
53c5240f PA |
1997 | { |
1998 | return lookup_symbol_in_language (name, block, domain, | |
1999 | current_language->la_language, | |
2570f2b7 | 2000 | is_a_field_of_this); |
53c5240f PA |
2001 | } |
2002 | ||
cf901d3b | 2003 | /* See symtab.h. */ |
66a17cb6 | 2004 | |
de63c46b PA |
2005 | struct block_symbol |
2006 | lookup_symbol_search_name (const char *search_name, const struct block *block, | |
ccf41c24 | 2007 | domain_search_flags domain) |
de63c46b PA |
2008 | { |
2009 | return lookup_symbol_aux (search_name, symbol_name_match_type::SEARCH_NAME, | |
2010 | block, domain, language_asm, NULL); | |
2011 | } | |
2012 | ||
2013 | /* See symtab.h. */ | |
2014 | ||
d12307c1 | 2015 | struct block_symbol |
66a17cb6 TT |
2016 | lookup_language_this (const struct language_defn *lang, |
2017 | const struct block *block) | |
2018 | { | |
5bae7c4e | 2019 | if (lang->name_of_this () == NULL || block == NULL) |
6640a367 | 2020 | return {}; |
66a17cb6 | 2021 | |
b1e678d9 AB |
2022 | symbol_lookup_debug_printf_v ("lookup_language_this (%s, %s (objfile %s))", |
2023 | lang->name (), host_address_to_string (block), | |
46baa3c6 | 2024 | objfile_debug_name (block->objfile ())); |
cc485e62 | 2025 | |
03de6823 | 2026 | while (block) |
66a17cb6 TT |
2027 | { |
2028 | struct symbol *sym; | |
2029 | ||
5bae7c4e | 2030 | sym = block_lookup_symbol (block, lang->name_of_this (), |
de63c46b | 2031 | symbol_name_match_type::SEARCH_NAME, |
ccf41c24 | 2032 | SEARCH_VFT); |
66a17cb6 | 2033 | if (sym != NULL) |
f149aabd | 2034 | { |
b1e678d9 AB |
2035 | symbol_lookup_debug_printf_v |
2036 | ("lookup_language_this (...) = %s (%s, block %s)", | |
2037 | sym->print_name (), host_address_to_string (sym), | |
2038 | host_address_to_string (block)); | |
d12307c1 | 2039 | return (struct block_symbol) {sym, block}; |
f149aabd | 2040 | } |
6c00f721 | 2041 | if (block->function ()) |
03de6823 | 2042 | break; |
f135fe72 | 2043 | block = block->superblock (); |
66a17cb6 | 2044 | } |
03de6823 | 2045 | |
b1e678d9 | 2046 | symbol_lookup_debug_printf_v ("lookup_language_this (...) = NULL"); |
6640a367 | 2047 | return {}; |
66a17cb6 TT |
2048 | } |
2049 | ||
2dc3df72 TT |
2050 | /* Given TYPE, a structure/union, |
2051 | return 1 if the component named NAME from the ultimate target | |
2052 | structure/union is defined, otherwise, return 0. */ | |
2053 | ||
2054 | static int | |
1993b719 TT |
2055 | check_field (struct type *type, const char *name, |
2056 | struct field_of_this_result *is_a_field_of_this) | |
2dc3df72 TT |
2057 | { |
2058 | int i; | |
2059 | ||
2060 | /* The type may be a stub. */ | |
f168693b | 2061 | type = check_typedef (type); |
2dc3df72 | 2062 | |
1f704f76 | 2063 | for (i = type->num_fields () - 1; i >= TYPE_N_BASECLASSES (type); i--) |
2dc3df72 | 2064 | { |
33d16dd9 | 2065 | const char *t_field_name = type->field (i).name (); |
2dc3df72 TT |
2066 | |
2067 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) | |
1993b719 TT |
2068 | { |
2069 | is_a_field_of_this->type = type; | |
ceacbf6e | 2070 | is_a_field_of_this->field = &type->field (i); |
1993b719 TT |
2071 | return 1; |
2072 | } | |
2dc3df72 TT |
2073 | } |
2074 | ||
2075 | /* C++: If it was not found as a data field, then try to return it | |
2076 | as a pointer to a method. */ | |
2077 | ||
2078 | for (i = TYPE_NFN_FIELDS (type) - 1; i >= 0; --i) | |
2079 | { | |
2080 | if (strcmp_iw (TYPE_FN_FIELDLIST_NAME (type, i), name) == 0) | |
1993b719 TT |
2081 | { |
2082 | is_a_field_of_this->type = type; | |
2083 | is_a_field_of_this->fn_field = &TYPE_FN_FIELDLIST (type, i); | |
2084 | return 1; | |
2085 | } | |
2dc3df72 TT |
2086 | } |
2087 | ||
2088 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1993b719 | 2089 | if (check_field (TYPE_BASECLASS (type, i), name, is_a_field_of_this)) |
2dc3df72 TT |
2090 | return 1; |
2091 | ||
2092 | return 0; | |
2093 | } | |
2094 | ||
53c5240f | 2095 | /* Behave like lookup_symbol except that NAME is the natural name |
7e082072 | 2096 | (e.g., demangled name) of the symbol that we're looking for. */ |
5ad1c190 | 2097 | |
d12307c1 | 2098 | static struct block_symbol |
de63c46b PA |
2099 | lookup_symbol_aux (const char *name, symbol_name_match_type match_type, |
2100 | const struct block *block, | |
ccf41c24 | 2101 | const domain_search_flags domain, enum language language, |
1993b719 | 2102 | struct field_of_this_result *is_a_field_of_this) |
fba7f19c | 2103 | { |
2698da26 AB |
2104 | SYMBOL_LOOKUP_SCOPED_DEBUG_ENTER_EXIT; |
2105 | ||
d12307c1 | 2106 | struct block_symbol result; |
53c5240f | 2107 | const struct language_defn *langdef; |
406bc4de | 2108 | |
cc485e62 DE |
2109 | if (symbol_lookup_debug) |
2110 | { | |
d6bc0792 | 2111 | struct objfile *objfile = (block == nullptr |
46baa3c6 | 2112 | ? nullptr : block->objfile ()); |
cc485e62 | 2113 | |
b1e678d9 AB |
2114 | symbol_lookup_debug_printf |
2115 | ("demangled symbol name = \"%s\", block @ %s (objfile %s)", | |
2116 | name, host_address_to_string (block), | |
2117 | objfile != NULL ? objfile_debug_name (objfile) : "NULL"); | |
2118 | symbol_lookup_debug_printf | |
2119 | ("domain name = \"%s\", language = \"%s\")", | |
ccf41c24 | 2120 | domain_name (domain).c_str (), language_str (language)); |
cc485e62 DE |
2121 | } |
2122 | ||
9a146a11 EZ |
2123 | /* Make sure we do something sensible with is_a_field_of_this, since |
2124 | the callers that set this parameter to some non-null value will | |
1993b719 TT |
2125 | certainly use it later. If we don't set it, the contents of |
2126 | is_a_field_of_this are undefined. */ | |
9a146a11 | 2127 | if (is_a_field_of_this != NULL) |
1993b719 | 2128 | memset (is_a_field_of_this, 0, sizeof (*is_a_field_of_this)); |
9a146a11 | 2129 | |
e4051eeb DC |
2130 | /* Search specified block and its superiors. Don't search |
2131 | STATIC_BLOCK or GLOBAL_BLOCK. */ | |
c906108c | 2132 | |
de63c46b | 2133 | result = lookup_local_symbol (name, match_type, block, domain, language); |
d12307c1 | 2134 | if (result.symbol != NULL) |
cc485e62 | 2135 | { |
b1e678d9 AB |
2136 | symbol_lookup_debug_printf |
2137 | ("found symbol @ %s (using lookup_local_symbol)", | |
2138 | host_address_to_string (result.symbol)); | |
d12307c1 | 2139 | return result; |
cc485e62 | 2140 | } |
c906108c | 2141 | |
53c5240f | 2142 | /* If requested to do so by the caller and if appropriate for LANGUAGE, |
13387711 | 2143 | check to see if NAME is a field of `this'. */ |
53c5240f PA |
2144 | |
2145 | langdef = language_def (language); | |
5f9a71c3 | 2146 | |
6592e36f TT |
2147 | /* Don't do this check if we are searching for a struct. It will |
2148 | not be found by check_field, but will be found by other | |
2149 | means. */ | |
ccf41c24 | 2150 | if (is_a_field_of_this != NULL && (domain & SEARCH_STRUCT_DOMAIN) == 0) |
c906108c | 2151 | { |
d12307c1 | 2152 | result = lookup_language_this (langdef, block); |
2b2d9e11 | 2153 | |
d12307c1 | 2154 | if (result.symbol) |
c906108c | 2155 | { |
5f9c5a63 | 2156 | struct type *t = result.symbol->type (); |
9af17804 | 2157 | |
2b2d9e11 VP |
2158 | /* I'm not really sure that type of this can ever |
2159 | be typedefed; just be safe. */ | |
f168693b | 2160 | t = check_typedef (t); |
809f3be1 | 2161 | if (t->is_pointer_or_reference ()) |
27710edb | 2162 | t = t->target_type (); |
9af17804 | 2163 | |
78134374 SM |
2164 | if (t->code () != TYPE_CODE_STRUCT |
2165 | && t->code () != TYPE_CODE_UNION) | |
9af17804 | 2166 | error (_("Internal error: `%s' is not an aggregate"), |
5bae7c4e | 2167 | langdef->name_of_this ()); |
9af17804 | 2168 | |
1993b719 | 2169 | if (check_field (t, name, is_a_field_of_this)) |
cc485e62 | 2170 | { |
b1e678d9 | 2171 | symbol_lookup_debug_printf ("no symbol found"); |
6640a367 | 2172 | return {}; |
cc485e62 | 2173 | } |
c906108c SS |
2174 | } |
2175 | } | |
2176 | ||
53c5240f | 2177 | /* Now do whatever is appropriate for LANGUAGE to look |
774b6a14 | 2178 | up static and global variables. */ |
c906108c | 2179 | |
a78a19b1 | 2180 | result = langdef->lookup_symbol_nonlocal (name, block, domain); |
d12307c1 | 2181 | if (result.symbol != NULL) |
cc485e62 | 2182 | { |
b1e678d9 AB |
2183 | symbol_lookup_debug_printf |
2184 | ("found symbol @ %s (using language lookup_symbol_nonlocal)", | |
2185 | host_address_to_string (result.symbol)); | |
d12307c1 | 2186 | return result; |
cc485e62 | 2187 | } |
c906108c | 2188 | |
774b6a14 TT |
2189 | /* Now search all static file-level symbols. Not strictly correct, |
2190 | but more useful than an error. */ | |
41f62f39 | 2191 | |
d12307c1 | 2192 | result = lookup_static_symbol (name, domain); |
b1e678d9 AB |
2193 | symbol_lookup_debug_printf |
2194 | ("found symbol @ %s (using lookup_static_symbol)", | |
2195 | result.symbol != NULL ? host_address_to_string (result.symbol) : "NULL"); | |
d12307c1 | 2196 | return result; |
41f62f39 JK |
2197 | } |
2198 | ||
e4051eeb | 2199 | /* Check to see if the symbol is defined in BLOCK or its superiors. |
89a9d1b1 | 2200 | Don't search STATIC_BLOCK or GLOBAL_BLOCK. */ |
8155455b | 2201 | |
d12307c1 | 2202 | static struct block_symbol |
de63c46b PA |
2203 | lookup_local_symbol (const char *name, |
2204 | symbol_name_match_type match_type, | |
2205 | const struct block *block, | |
ccf41c24 | 2206 | const domain_search_flags domain, |
74016e12 | 2207 | enum language language) |
8155455b | 2208 | { |
78004096 TT |
2209 | if (block == nullptr) |
2210 | return {}; | |
2211 | ||
8155455b | 2212 | struct symbol *sym; |
d24e14a0 | 2213 | const struct block *static_block = block->static_block (); |
3c45e9f9 | 2214 | const char *scope = block->scope (); |
13387711 | 2215 | |
78004096 TT |
2216 | /* Check if it's a global block. */ |
2217 | if (static_block == nullptr) | |
6640a367 | 2218 | return {}; |
e4051eeb | 2219 | |
89a9d1b1 | 2220 | while (block != static_block) |
f61e8913 | 2221 | { |
de63c46b | 2222 | sym = lookup_symbol_in_block (name, match_type, block, domain); |
f61e8913 | 2223 | if (sym != NULL) |
d12307c1 | 2224 | return (struct block_symbol) {sym, block}; |
edb3359d | 2225 | |
f55ee35c | 2226 | if (language == language_cplus || language == language_fortran) |
dda83cd7 SM |
2227 | { |
2228 | struct block_symbol blocksym | |
d12307c1 PMR |
2229 | = cp_lookup_symbol_imports_or_template (scope, name, block, |
2230 | domain); | |
2231 | ||
dda83cd7 SM |
2232 | if (blocksym.symbol != NULL) |
2233 | return blocksym; | |
2234 | } | |
13387711 | 2235 | |
a4dfe747 | 2236 | if (block->function () != NULL && block->inlined_p ()) |
edb3359d | 2237 | break; |
f135fe72 | 2238 | block = block->superblock (); |
f61e8913 DC |
2239 | } |
2240 | ||
3aee438b | 2241 | /* We've reached the end of the function without finding a result. */ |
e4051eeb | 2242 | |
6640a367 | 2243 | return {}; |
f61e8913 DC |
2244 | } |
2245 | ||
cf901d3b | 2246 | /* See symtab.h. */ |
3a40aaa0 | 2247 | |
5f9a71c3 | 2248 | struct symbol * |
de63c46b PA |
2249 | lookup_symbol_in_block (const char *name, symbol_name_match_type match_type, |
2250 | const struct block *block, | |
ccf41c24 | 2251 | const domain_search_flags domain) |
f61e8913 DC |
2252 | { |
2253 | struct symbol *sym; | |
f61e8913 | 2254 | |
b1e678d9 | 2255 | if (symbol_lookup_debug) |
cc485e62 | 2256 | { |
b1e678d9 | 2257 | struct objfile *objfile |
46baa3c6 | 2258 | = block == nullptr ? nullptr : block->objfile (); |
cc485e62 | 2259 | |
b1e678d9 AB |
2260 | symbol_lookup_debug_printf_v |
2261 | ("lookup_symbol_in_block (%s, %s (objfile %s), %s)", | |
2262 | name, host_address_to_string (block), | |
2263 | objfile != nullptr ? objfile_debug_name (objfile) : "NULL", | |
ccf41c24 | 2264 | domain_name (domain).c_str ()); |
cc485e62 DE |
2265 | } |
2266 | ||
de63c46b | 2267 | sym = block_lookup_symbol (block, name, match_type, domain); |
f61e8913 | 2268 | if (sym) |
8155455b | 2269 | { |
b1e678d9 AB |
2270 | symbol_lookup_debug_printf_v ("lookup_symbol_in_block (...) = %s", |
2271 | host_address_to_string (sym)); | |
dae58e04 | 2272 | return sym; |
8155455b DC |
2273 | } |
2274 | ||
b1e678d9 | 2275 | symbol_lookup_debug_printf_v ("lookup_symbol_in_block (...) = NULL"); |
8155455b DC |
2276 | return NULL; |
2277 | } | |
2278 | ||
cf901d3b | 2279 | /* See symtab.h. */ |
3a40aaa0 | 2280 | |
d12307c1 | 2281 | struct block_symbol |
efad9b6a | 2282 | lookup_global_symbol_from_objfile (struct objfile *main_objfile, |
442853af | 2283 | enum block_enum block_index, |
3a40aaa0 | 2284 | const char *name, |
ccf41c24 | 2285 | const domain_search_flags domain) |
3a40aaa0 | 2286 | { |
442853af CB |
2287 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2288 | ||
bde09ab7 | 2289 | for (objfile *objfile : main_objfile->separate_debug_objfiles ()) |
15d123c9 | 2290 | { |
d12307c1 | 2291 | struct block_symbol result |
dda83cd7 | 2292 | = lookup_symbol_in_objfile (objfile, block_index, name, domain); |
15d123c9 | 2293 | |
442853af | 2294 | if (result.symbol != nullptr) |
d12307c1 | 2295 | return result; |
15d123c9 | 2296 | } |
56e3f43c | 2297 | |
6640a367 | 2298 | return {}; |
3a40aaa0 UW |
2299 | } |
2300 | ||
19630284 JB |
2301 | /* Check to see if the symbol is defined in one of the OBJFILE's |
2302 | symtabs. BLOCK_INDEX should be either GLOBAL_BLOCK or STATIC_BLOCK, | |
8155455b DC |
2303 | depending on whether or not we want to search global symbols or |
2304 | static symbols. */ | |
2305 | ||
d12307c1 | 2306 | static struct block_symbol |
c32e6a04 CB |
2307 | lookup_symbol_in_objfile_symtabs (struct objfile *objfile, |
2308 | enum block_enum block_index, const char *name, | |
ccf41c24 | 2309 | const domain_search_flags domain) |
19630284 | 2310 | { |
ba715d7f JK |
2311 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2312 | ||
b1e678d9 AB |
2313 | symbol_lookup_debug_printf_v |
2314 | ("lookup_symbol_in_objfile_symtabs (%s, %s, %s, %s)", | |
2315 | objfile_debug_name (objfile), | |
2316 | block_index == GLOBAL_BLOCK ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
ccf41c24 | 2317 | name, domain_name (domain).c_str ()); |
cc485e62 | 2318 | |
de82891c TV |
2319 | struct block_symbol other; |
2320 | other.symbol = NULL; | |
b669c953 | 2321 | for (compunit_symtab *cust : objfile->compunits ()) |
a743abeb | 2322 | { |
43f3e411 DE |
2323 | const struct blockvector *bv; |
2324 | const struct block *block; | |
d12307c1 | 2325 | struct block_symbol result; |
43f3e411 | 2326 | |
af39c5c8 | 2327 | bv = cust->blockvector (); |
63d609de | 2328 | block = bv->block (block_index); |
d12307c1 PMR |
2329 | result.symbol = block_lookup_symbol_primary (block, name, domain); |
2330 | result.block = block; | |
de82891c TV |
2331 | if (result.symbol == NULL) |
2332 | continue; | |
2333 | if (best_symbol (result.symbol, domain)) | |
a743abeb | 2334 | { |
de82891c TV |
2335 | other = result; |
2336 | break; | |
2337 | } | |
911e1e79 | 2338 | if (result.symbol->matches (domain)) |
de82891c TV |
2339 | { |
2340 | struct symbol *better | |
2341 | = better_symbol (other.symbol, result.symbol, domain); | |
2342 | if (better != other.symbol) | |
cc485e62 | 2343 | { |
de82891c TV |
2344 | other.symbol = better; |
2345 | other.block = block; | |
cc485e62 | 2346 | } |
de82891c TV |
2347 | } |
2348 | } | |
d12307c1 | 2349 | |
de82891c TV |
2350 | if (other.symbol != NULL) |
2351 | { | |
b1e678d9 AB |
2352 | symbol_lookup_debug_printf_v |
2353 | ("lookup_symbol_in_objfile_symtabs (...) = %s (block %s)", | |
2354 | host_address_to_string (other.symbol), | |
2355 | host_address_to_string (other.block)); | |
de82891c | 2356 | return other; |
a743abeb | 2357 | } |
19630284 | 2358 | |
b1e678d9 AB |
2359 | symbol_lookup_debug_printf_v |
2360 | ("lookup_symbol_in_objfile_symtabs (...) = NULL"); | |
6640a367 | 2361 | return {}; |
19630284 JB |
2362 | } |
2363 | ||
74016e12 | 2364 | /* Wrapper around lookup_symbol_in_objfile_symtabs for search_symbols. |
422d65e7 | 2365 | Look up LINKAGE_NAME in DOMAIN in the global and static blocks of OBJFILE |
01465b56 DE |
2366 | and all associated separate debug objfiles. |
2367 | ||
2368 | Normally we only look in OBJFILE, and not any separate debug objfiles | |
2369 | because the outer loop will cause them to be searched too. This case is | |
2370 | different. Here we're called from search_symbols where it will only | |
6471e7d2 | 2371 | call us for the objfile that contains a matching minsym. */ |
422d65e7 | 2372 | |
d12307c1 | 2373 | static struct block_symbol |
422d65e7 DE |
2374 | lookup_symbol_in_objfile_from_linkage_name (struct objfile *objfile, |
2375 | const char *linkage_name, | |
ccf41c24 | 2376 | domain_search_flags domain) |
422d65e7 DE |
2377 | { |
2378 | enum language lang = current_language->la_language; | |
e9ad22ee | 2379 | struct objfile *main_objfile; |
422d65e7 | 2380 | |
2f408ecb PA |
2381 | demangle_result_storage storage; |
2382 | const char *modified_name = demangle_for_lookup (linkage_name, lang, storage); | |
2383 | ||
422d65e7 DE |
2384 | if (objfile->separate_debug_objfile_backlink) |
2385 | main_objfile = objfile->separate_debug_objfile_backlink; | |
2386 | else | |
2387 | main_objfile = objfile; | |
2388 | ||
bde09ab7 | 2389 | for (::objfile *cur_objfile : main_objfile->separate_debug_objfiles ()) |
422d65e7 | 2390 | { |
d12307c1 PMR |
2391 | struct block_symbol result; |
2392 | ||
2393 | result = lookup_symbol_in_objfile_symtabs (cur_objfile, GLOBAL_BLOCK, | |
2394 | modified_name, domain); | |
2395 | if (result.symbol == NULL) | |
2396 | result = lookup_symbol_in_objfile_symtabs (cur_objfile, STATIC_BLOCK, | |
2397 | modified_name, domain); | |
2398 | if (result.symbol != NULL) | |
2f408ecb | 2399 | return result; |
422d65e7 DE |
2400 | } |
2401 | ||
6640a367 | 2402 | return {}; |
422d65e7 DE |
2403 | } |
2404 | ||
08c23b0d TT |
2405 | /* A helper function that throws an exception when a symbol was found |
2406 | in a psymtab but not in a symtab. */ | |
2407 | ||
2408 | static void ATTRIBUTE_NORETURN | |
ddbcedf5 | 2409 | error_in_psymtab_expansion (enum block_enum block_index, const char *name, |
43f3e411 | 2410 | struct compunit_symtab *cust) |
08c23b0d TT |
2411 | { |
2412 | error (_("\ | |
2413 | Internal: %s symbol `%s' found in %s psymtab but not in symtab.\n\ | |
2414 | %s may be an inlined function, or may be a template function\n \ | |
2415 | (if a template, try specifying an instantiation: %s<type>)."), | |
f88cb4b6 | 2416 | block_index == GLOBAL_BLOCK ? "global" : "static", |
43f3e411 | 2417 | name, |
0b17a4f7 | 2418 | symtab_to_filename_for_display (cust->primary_filetab ()), |
43f3e411 | 2419 | name, name); |
08c23b0d TT |
2420 | } |
2421 | ||
74016e12 DE |
2422 | /* A helper function for various lookup routines that interfaces with |
2423 | the "quick" symbol table functions. */ | |
8155455b | 2424 | |
d12307c1 | 2425 | static struct block_symbol |
ddbcedf5 CB |
2426 | lookup_symbol_via_quick_fns (struct objfile *objfile, |
2427 | enum block_enum block_index, const char *name, | |
ccf41c24 | 2428 | const domain_search_flags domain) |
8155455b | 2429 | { |
43f3e411 | 2430 | struct compunit_symtab *cust; |
346d1dfe | 2431 | const struct blockvector *bv; |
8155455b | 2432 | const struct block *block; |
d12307c1 | 2433 | struct block_symbol result; |
8155455b | 2434 | |
b1e678d9 AB |
2435 | symbol_lookup_debug_printf_v |
2436 | ("lookup_symbol_via_quick_fns (%s, %s, %s, %s)", | |
2437 | objfile_debug_name (objfile), | |
2438 | block_index == GLOBAL_BLOCK ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
ccf41c24 | 2439 | name, domain_name (domain).c_str ()); |
cc485e62 | 2440 | |
4d080b46 | 2441 | cust = objfile->lookup_symbol (block_index, name, domain); |
43f3e411 | 2442 | if (cust == NULL) |
cc485e62 | 2443 | { |
b1e678d9 AB |
2444 | symbol_lookup_debug_printf_v |
2445 | ("lookup_symbol_via_quick_fns (...) = NULL"); | |
6640a367 | 2446 | return {}; |
cc485e62 | 2447 | } |
8155455b | 2448 | |
af39c5c8 | 2449 | bv = cust->blockvector (); |
63d609de | 2450 | block = bv->block (block_index); |
de63c46b PA |
2451 | result.symbol = block_lookup_symbol (block, name, |
2452 | symbol_name_match_type::FULL, domain); | |
d12307c1 | 2453 | if (result.symbol == NULL) |
43f3e411 | 2454 | error_in_psymtab_expansion (block_index, name, cust); |
cc485e62 | 2455 | |
b1e678d9 AB |
2456 | symbol_lookup_debug_printf_v |
2457 | ("lookup_symbol_via_quick_fns (...) = %s (block %s)", | |
2458 | host_address_to_string (result.symbol), | |
2459 | host_address_to_string (block)); | |
cc485e62 | 2460 | |
d12307c1 PMR |
2461 | result.block = block; |
2462 | return result; | |
8155455b DC |
2463 | } |
2464 | ||
a78a19b1 | 2465 | /* See language.h. */ |
5f9a71c3 | 2466 | |
d12307c1 | 2467 | struct block_symbol |
a78a19b1 AB |
2468 | language_defn::lookup_symbol_nonlocal (const char *name, |
2469 | const struct block *block, | |
ccf41c24 | 2470 | const domain_search_flags domain) const |
5f9a71c3 | 2471 | { |
d12307c1 | 2472 | struct block_symbol result; |
5f9a71c3 | 2473 | |
d9060ba6 DE |
2474 | /* NOTE: dje/2014-10-26: The lookup in all objfiles search could skip |
2475 | the current objfile. Searching the current objfile first is useful | |
2476 | for both matching user expectations as well as performance. */ | |
2477 | ||
d12307c1 PMR |
2478 | result = lookup_symbol_in_static_block (name, block, domain); |
2479 | if (result.symbol != NULL) | |
2480 | return result; | |
5f9a71c3 | 2481 | |
1994afbf DE |
2482 | /* If we didn't find a definition for a builtin type in the static block, |
2483 | search for it now. This is actually the right thing to do and can be | |
2484 | a massive performance win. E.g., when debugging a program with lots of | |
2485 | shared libraries we could search all of them only to find out the | |
2486 | builtin type isn't defined in any of them. This is common for types | |
2487 | like "void". */ | |
ccf41c24 | 2488 | if ((domain & SEARCH_TYPE_DOMAIN) != 0) |
1994afbf DE |
2489 | { |
2490 | struct gdbarch *gdbarch; | |
2491 | ||
2492 | if (block == NULL) | |
99d9c3b9 | 2493 | gdbarch = current_inferior ()->arch (); |
1994afbf | 2494 | else |
7f5937df | 2495 | gdbarch = block->gdbarch (); |
a78a19b1 | 2496 | result.symbol = language_lookup_primitive_type_as_symbol (this, |
d12307c1 PMR |
2497 | gdbarch, name); |
2498 | result.block = NULL; | |
2499 | if (result.symbol != NULL) | |
2500 | return result; | |
1994afbf DE |
2501 | } |
2502 | ||
08724ab7 | 2503 | return lookup_global_symbol (name, block, domain); |
5f9a71c3 DC |
2504 | } |
2505 | ||
cf901d3b | 2506 | /* See symtab.h. */ |
5f9a71c3 | 2507 | |
d12307c1 | 2508 | struct block_symbol |
24d864bb DE |
2509 | lookup_symbol_in_static_block (const char *name, |
2510 | const struct block *block, | |
ccf41c24 | 2511 | const domain_search_flags domain) |
5f9a71c3 | 2512 | { |
78004096 TT |
2513 | if (block == nullptr) |
2514 | return {}; | |
2515 | ||
d24e14a0 | 2516 | const struct block *static_block = block->static_block (); |
cc485e62 | 2517 | struct symbol *sym; |
5f9a71c3 | 2518 | |
cc485e62 | 2519 | if (static_block == NULL) |
6640a367 | 2520 | return {}; |
cc485e62 DE |
2521 | |
2522 | if (symbol_lookup_debug) | |
2523 | { | |
d6bc0792 | 2524 | struct objfile *objfile = (block == nullptr |
46baa3c6 | 2525 | ? nullptr : block->objfile ()); |
cc485e62 | 2526 | |
b1e678d9 AB |
2527 | symbol_lookup_debug_printf |
2528 | ("lookup_symbol_in_static_block (%s, %s (objfile %s), %s)", | |
2529 | name, host_address_to_string (block), | |
2530 | objfile != nullptr ? objfile_debug_name (objfile) : "NULL", | |
ccf41c24 | 2531 | domain_name (domain).c_str ()); |
cc485e62 DE |
2532 | } |
2533 | ||
de63c46b PA |
2534 | sym = lookup_symbol_in_block (name, |
2535 | symbol_name_match_type::FULL, | |
2536 | static_block, domain); | |
b1e678d9 AB |
2537 | symbol_lookup_debug_printf ("lookup_symbol_in_static_block (...) = %s", |
2538 | sym != NULL | |
2539 | ? host_address_to_string (sym) : "NULL"); | |
d12307c1 | 2540 | return (struct block_symbol) {sym, static_block}; |
5f9a71c3 DC |
2541 | } |
2542 | ||
af3768e9 DE |
2543 | /* Perform the standard symbol lookup of NAME in OBJFILE: |
2544 | 1) First search expanded symtabs, and if not found | |
2545 | 2) Search the "quick" symtabs (partial or .gdb_index). | |
2546 | BLOCK_INDEX is one of GLOBAL_BLOCK or STATIC_BLOCK. */ | |
2547 | ||
d12307c1 | 2548 | static struct block_symbol |
c32e6a04 | 2549 | lookup_symbol_in_objfile (struct objfile *objfile, enum block_enum block_index, |
ccf41c24 | 2550 | const char *name, const domain_search_flags domain) |
af3768e9 | 2551 | { |
d12307c1 | 2552 | struct block_symbol result; |
af3768e9 | 2553 | |
c32e6a04 CB |
2554 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2555 | ||
b1e678d9 AB |
2556 | symbol_lookup_debug_printf ("lookup_symbol_in_objfile (%s, %s, %s, %s)", |
2557 | objfile_debug_name (objfile), | |
2558 | block_index == GLOBAL_BLOCK | |
2559 | ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
ccf41c24 | 2560 | name, domain_name (domain).c_str ()); |
cc485e62 | 2561 | |
af3768e9 DE |
2562 | result = lookup_symbol_in_objfile_symtabs (objfile, block_index, |
2563 | name, domain); | |
d12307c1 | 2564 | if (result.symbol != NULL) |
af3768e9 | 2565 | { |
b1e678d9 AB |
2566 | symbol_lookup_debug_printf |
2567 | ("lookup_symbol_in_objfile (...) = %s (in symtabs)", | |
2568 | host_address_to_string (result.symbol)); | |
cc485e62 | 2569 | return result; |
af3768e9 DE |
2570 | } |
2571 | ||
cc485e62 DE |
2572 | result = lookup_symbol_via_quick_fns (objfile, block_index, |
2573 | name, domain); | |
b1e678d9 AB |
2574 | symbol_lookup_debug_printf ("lookup_symbol_in_objfile (...) = %s%s", |
2575 | result.symbol != NULL | |
2576 | ? host_address_to_string (result.symbol) | |
2577 | : "NULL", | |
2578 | result.symbol != NULL ? " (via quick fns)" | |
2579 | : ""); | |
af3768e9 DE |
2580 | return result; |
2581 | } | |
2582 | ||
9aa55206 CB |
2583 | /* This function contains the common code of lookup_{global,static}_symbol. |
2584 | OBJFILE is only used if BLOCK_INDEX is GLOBAL_SCOPE, in which case it is | |
2585 | the objfile to start the lookup in. */ | |
5f9a71c3 | 2586 | |
9aa55206 CB |
2587 | static struct block_symbol |
2588 | lookup_global_or_static_symbol (const char *name, | |
2589 | enum block_enum block_index, | |
2590 | struct objfile *objfile, | |
ccf41c24 | 2591 | const domain_search_flags domain) |
5f9a71c3 | 2592 | { |
f57d2163 | 2593 | struct symbol_cache *cache = get_symbol_cache (current_program_space); |
d12307c1 | 2594 | struct block_symbol result; |
f57d2163 DE |
2595 | struct block_symbol_cache *bsc; |
2596 | struct symbol_cache_slot *slot; | |
b2fb95e0 | 2597 | |
9aa55206 CB |
2598 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2599 | gdb_assert (objfile == nullptr || block_index == GLOBAL_BLOCK); | |
f57d2163 DE |
2600 | |
2601 | /* First see if we can find the symbol in the cache. | |
2602 | This works because we use the current objfile to qualify the lookup. */ | |
9aa55206 | 2603 | result = symbol_cache_lookup (cache, objfile, block_index, name, domain, |
d12307c1 PMR |
2604 | &bsc, &slot); |
2605 | if (result.symbol != NULL) | |
f57d2163 | 2606 | { |
d12307c1 | 2607 | if (SYMBOL_LOOKUP_FAILED_P (result)) |
6640a367 | 2608 | return {}; |
d12307c1 | 2609 | return result; |
f57d2163 DE |
2610 | } |
2611 | ||
626ca2c0 | 2612 | /* Do a global search (of global blocks, heh). */ |
d12307c1 | 2613 | if (result.symbol == NULL) |
6e9cd73e | 2614 | gdbarch_iterate_over_objfiles_in_search_order |
99d9c3b9 | 2615 | (objfile != NULL ? objfile->arch () : current_inferior ()->arch (), |
6e9cd73e SM |
2616 | [&result, block_index, name, domain] (struct objfile *objfile_iter) |
2617 | { | |
2618 | result = lookup_symbol_in_objfile (objfile_iter, block_index, | |
2619 | name, domain); | |
2620 | return result.symbol != nullptr; | |
2621 | }, | |
2622 | objfile); | |
6a3ca067 | 2623 | |
d12307c1 | 2624 | if (result.symbol != NULL) |
ccf41c24 TT |
2625 | symbol_cache_mark_found (bsc, slot, objfile, result.symbol, result.block, |
2626 | domain); | |
f57d2163 DE |
2627 | else |
2628 | symbol_cache_mark_not_found (bsc, slot, objfile, name, domain); | |
2629 | ||
d12307c1 | 2630 | return result; |
5f9a71c3 DC |
2631 | } |
2632 | ||
9aa55206 CB |
2633 | /* See symtab.h. */ |
2634 | ||
2635 | struct block_symbol | |
ccf41c24 | 2636 | lookup_static_symbol (const char *name, const domain_search_flags domain) |
9aa55206 CB |
2637 | { |
2638 | return lookup_global_or_static_symbol (name, STATIC_BLOCK, nullptr, domain); | |
2639 | } | |
2640 | ||
2641 | /* See symtab.h. */ | |
2642 | ||
2643 | struct block_symbol | |
2644 | lookup_global_symbol (const char *name, | |
2645 | const struct block *block, | |
ccf41c24 | 2646 | const domain_search_flags domain) |
9aa55206 | 2647 | { |
d3d32391 AB |
2648 | /* If a block was passed in, we want to search the corresponding |
2649 | global block first. This yields "more expected" behavior, and is | |
2650 | needed to support 'FILENAME'::VARIABLE lookups. */ | |
8f14fd11 | 2651 | const struct block *global_block |
d24e14a0 | 2652 | = block == nullptr ? nullptr : block->global_block (); |
70bc38f5 | 2653 | symbol *sym = NULL; |
d3d32391 AB |
2654 | if (global_block != nullptr) |
2655 | { | |
70bc38f5 TV |
2656 | sym = lookup_symbol_in_block (name, |
2657 | symbol_name_match_type::FULL, | |
2658 | global_block, domain); | |
2659 | if (sym != NULL && best_symbol (sym, domain)) | |
d3d32391 AB |
2660 | return { sym, global_block }; |
2661 | } | |
2662 | ||
d6bc0792 TT |
2663 | struct objfile *objfile = nullptr; |
2664 | if (block != nullptr) | |
2665 | { | |
46baa3c6 | 2666 | objfile = block->objfile (); |
d6bc0792 TT |
2667 | if (objfile->separate_debug_objfile_backlink != nullptr) |
2668 | objfile = objfile->separate_debug_objfile_backlink; | |
2669 | } | |
2670 | ||
70bc38f5 TV |
2671 | block_symbol bs |
2672 | = lookup_global_or_static_symbol (name, GLOBAL_BLOCK, objfile, domain); | |
2673 | if (better_symbol (sym, bs.symbol, domain) == sym) | |
2674 | return { sym, global_block }; | |
2675 | else | |
2676 | return bs; | |
9aa55206 CB |
2677 | } |
2678 | ||
cf901d3b | 2679 | /* See symtab.h. */ |
c906108c | 2680 | |
25f31e18 TT |
2681 | bool |
2682 | symbol::matches (domain_search_flags flags) const | |
2683 | { | |
974b36c2 TT |
2684 | /* C++ has a typedef for every tag, and the types are in the struct |
2685 | domain. */ | |
2686 | if (language () == language_cplus && (flags & SEARCH_TYPE_DOMAIN) != 0) | |
2687 | flags |= SEARCH_STRUCT_DOMAIN; | |
25f31e18 TT |
2688 | |
2689 | return search_flags_matches (flags, m_domain); | |
2690 | } | |
2691 | ||
2692 | /* See symtab.h. */ | |
2693 | ||
ccefe4c4 TT |
2694 | struct type * |
2695 | lookup_transparent_type (const char *name) | |
c906108c | 2696 | { |
54f4ca46 | 2697 | return current_language->lookup_transparent_type (name); |
ccefe4c4 | 2698 | } |
9af17804 | 2699 | |
ccefe4c4 TT |
2700 | /* A helper for basic_lookup_transparent_type that interfaces with the |
2701 | "quick" symbol table functions. */ | |
357e46e7 | 2702 | |
ccefe4c4 | 2703 | static struct type * |
ddbcedf5 CB |
2704 | basic_lookup_transparent_type_quick (struct objfile *objfile, |
2705 | enum block_enum block_index, | |
ccefe4c4 TT |
2706 | const char *name) |
2707 | { | |
43f3e411 | 2708 | struct compunit_symtab *cust; |
346d1dfe | 2709 | const struct blockvector *bv; |
582942f4 | 2710 | const struct block *block; |
ccefe4c4 | 2711 | struct symbol *sym; |
c906108c | 2712 | |
ccf41c24 | 2713 | cust = objfile->lookup_symbol (block_index, name, SEARCH_STRUCT_DOMAIN); |
43f3e411 | 2714 | if (cust == NULL) |
ccefe4c4 | 2715 | return NULL; |
c906108c | 2716 | |
af39c5c8 | 2717 | bv = cust->blockvector (); |
63d609de | 2718 | block = bv->block (block_index); |
b7a92724 TT |
2719 | |
2720 | lookup_name_info lookup_name (name, symbol_name_match_type::FULL); | |
ccf41c24 | 2721 | sym = block_find_symbol (block, lookup_name, SEARCH_STRUCT_DOMAIN, nullptr); |
b7a92724 | 2722 | if (sym == nullptr) |
43f3e411 | 2723 | error_in_psymtab_expansion (block_index, name, cust); |
5f9c5a63 SM |
2724 | gdb_assert (!TYPE_IS_OPAQUE (sym->type ())); |
2725 | return sym->type (); | |
b2e2f908 | 2726 | } |
08c23b0d | 2727 | |
b2e2f908 DE |
2728 | /* Subroutine of basic_lookup_transparent_type to simplify it. |
2729 | Look up the non-opaque definition of NAME in BLOCK_INDEX of OBJFILE. | |
2730 | BLOCK_INDEX is either GLOBAL_BLOCK or STATIC_BLOCK. */ | |
2731 | ||
2732 | static struct type * | |
ddbcedf5 CB |
2733 | basic_lookup_transparent_type_1 (struct objfile *objfile, |
2734 | enum block_enum block_index, | |
b2e2f908 DE |
2735 | const char *name) |
2736 | { | |
b2e2f908 DE |
2737 | const struct blockvector *bv; |
2738 | const struct block *block; | |
2739 | const struct symbol *sym; | |
2740 | ||
b7a92724 | 2741 | lookup_name_info lookup_name (name, symbol_name_match_type::FULL); |
b669c953 | 2742 | for (compunit_symtab *cust : objfile->compunits ()) |
b2e2f908 | 2743 | { |
af39c5c8 | 2744 | bv = cust->blockvector (); |
63d609de | 2745 | block = bv->block (block_index); |
ccf41c24 TT |
2746 | sym = block_find_symbol (block, lookup_name, SEARCH_STRUCT_DOMAIN, |
2747 | 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 * | |
b368761e | 2765 | basic_lookup_transparent_type (const char *name) |
c906108c | 2766 | { |
ccefe4c4 | 2767 | struct type *t; |
c906108c SS |
2768 | |
2769 | /* Now search all the global symbols. Do the symtab's first, then | |
c378eb4e | 2770 | check the psymtab's. If a psymtab indicates the existence |
c906108c SS |
2771 | of the desired name as a global, then do psymtab-to-symtab |
2772 | conversion on the fly and return the found symbol. */ | |
c5aa993b | 2773 | |
2030c079 | 2774 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2775 | { |
2776 | t = basic_lookup_transparent_type_1 (objfile, GLOBAL_BLOCK, name); | |
2777 | if (t) | |
2778 | return t; | |
2779 | } | |
c906108c | 2780 | |
2030c079 | 2781 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2782 | { |
2783 | t = basic_lookup_transparent_type_quick (objfile, GLOBAL_BLOCK, name); | |
2784 | if (t) | |
2785 | return t; | |
2786 | } | |
c906108c SS |
2787 | |
2788 | /* Now search the static file-level symbols. | |
2789 | Not strictly correct, but more useful than an error. | |
2790 | Do the symtab's first, then | |
c378eb4e | 2791 | check the psymtab's. If a psymtab indicates the existence |
c906108c | 2792 | of the desired name as a file-level static, then do psymtab-to-symtab |
c378eb4e | 2793 | conversion on the fly and return the found symbol. */ |
c906108c | 2794 | |
2030c079 | 2795 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2796 | { |
2797 | t = basic_lookup_transparent_type_1 (objfile, STATIC_BLOCK, name); | |
2798 | if (t) | |
2799 | return t; | |
2800 | } | |
c906108c | 2801 | |
2030c079 | 2802 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2803 | { |
2804 | t = basic_lookup_transparent_type_quick (objfile, STATIC_BLOCK, name); | |
2805 | if (t) | |
2806 | return t; | |
2807 | } | |
ccefe4c4 | 2808 | |
c906108c SS |
2809 | return (struct type *) 0; |
2810 | } | |
2811 | ||
6969f124 | 2812 | /* See symtab.h. */ |
f8eba3c6 | 2813 | |
6969f124 | 2814 | bool |
b5ec771e PA |
2815 | iterate_over_symbols (const struct block *block, |
2816 | const lookup_name_info &name, | |
6c015214 | 2817 | const domain_search_flags domain, |
14bc53a8 | 2818 | gdb::function_view<symbol_found_callback_ftype> callback) |
f8eba3c6 | 2819 | { |
a1b29426 | 2820 | for (struct symbol *sym : block_iterator_range (block, &name)) |
4eeaa230 | 2821 | { |
911e1e79 | 2822 | if (sym->matches (domain)) |
f8eba3c6 | 2823 | { |
7e41c8db KS |
2824 | struct block_symbol block_sym = {sym, block}; |
2825 | ||
2826 | if (!callback (&block_sym)) | |
6969f124 | 2827 | return false; |
f8eba3c6 | 2828 | } |
f8eba3c6 | 2829 | } |
6969f124 | 2830 | return true; |
f8eba3c6 TT |
2831 | } |
2832 | ||
6a3dbf1b TT |
2833 | /* See symtab.h. */ |
2834 | ||
2835 | bool | |
2836 | iterate_over_symbols_terminated | |
2837 | (const struct block *block, | |
2838 | const lookup_name_info &name, | |
6c015214 | 2839 | const domain_search_flags domain, |
6a3dbf1b TT |
2840 | gdb::function_view<symbol_found_callback_ftype> callback) |
2841 | { | |
2842 | if (!iterate_over_symbols (block, name, domain, callback)) | |
2843 | return false; | |
2844 | struct block_symbol block_sym = {nullptr, block}; | |
2845 | return callback (&block_sym); | |
2846 | } | |
2847 | ||
43f3e411 DE |
2848 | /* Find the compunit symtab associated with PC and SECTION. |
2849 | This will read in debug info as necessary. */ | |
c906108c | 2850 | |
43f3e411 DE |
2851 | struct compunit_symtab * |
2852 | find_pc_sect_compunit_symtab (CORE_ADDR pc, struct obj_section *section) | |
c906108c | 2853 | { |
43f3e411 | 2854 | struct compunit_symtab *best_cust = NULL; |
61eb46a4 | 2855 | CORE_ADDR best_cust_range = 0; |
77e371c0 | 2856 | struct bound_minimal_symbol msymbol; |
8a48e967 DJ |
2857 | |
2858 | /* If we know that this is not a text address, return failure. This is | |
2859 | necessary because we loop based on the block's high and low code | |
2860 | addresses, which do not include the data ranges, and because | |
2861 | we call find_pc_sect_psymtab which has a similar restriction based | |
2862 | on the partial_symtab's texthigh and textlow. */ | |
77e371c0 | 2863 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); |
1ed9f74e | 2864 | if (msymbol.minsym && msymbol.minsym->data_p ()) |
8a48e967 | 2865 | return NULL; |
c906108c SS |
2866 | |
2867 | /* Search all symtabs for the one whose file contains our address, and which | |
2868 | is the smallest of all the ones containing the address. This is designed | |
2869 | to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000 | |
2870 | and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from | |
2871 | 0x1000-0x4000, but for address 0x2345 we want to return symtab b. | |
2872 | ||
2873 | This happens for native ecoff format, where code from included files | |
c378eb4e | 2874 | gets its own symtab. The symtab for the included file should have |
c906108c SS |
2875 | been read in already via the dependency mechanism. |
2876 | It might be swifter to create several symtabs with the same name | |
2877 | like xcoff does (I'm not sure). | |
2878 | ||
2879 | It also happens for objfiles that have their functions reordered. | |
2880 | For these, the symtab we are looking for is not necessarily read in. */ | |
2881 | ||
2030c079 | 2882 | for (objfile *obj_file : current_program_space->objfiles ()) |
d8aeb77f | 2883 | { |
b669c953 | 2884 | for (compunit_symtab *cust : obj_file->compunits ()) |
d8aeb77f | 2885 | { |
af39c5c8 | 2886 | const struct blockvector *bv = cust->blockvector (); |
63d609de | 2887 | const struct block *global_block = bv->global_block (); |
4b8791e1 SM |
2888 | CORE_ADDR start = global_block->start (); |
2889 | CORE_ADDR end = global_block->end (); | |
61eb46a4 TV |
2890 | bool in_range_p = start <= pc && pc < end; |
2891 | if (!in_range_p) | |
2892 | continue; | |
43f3e411 | 2893 | |
414705d1 | 2894 | if (bv->map () != nullptr) |
1b00ef06 | 2895 | { |
769520b7 | 2896 | if (bv->map ()->find (pc) == nullptr) |
1b00ef06 TV |
2897 | continue; |
2898 | ||
2899 | return cust; | |
2900 | } | |
2901 | ||
61eb46a4 TV |
2902 | CORE_ADDR range = end - start; |
2903 | if (best_cust != nullptr | |
2904 | && range >= best_cust_range) | |
2905 | /* Cust doesn't have a smaller range than best_cust, skip it. */ | |
2906 | continue; | |
2907 | ||
2908 | /* For an objfile that has its functions reordered, | |
2909 | find_pc_psymtab will find the proper partial symbol table | |
2910 | and we simply return its corresponding symtab. */ | |
2911 | /* In order to better support objfiles that contain both | |
2912 | stabs and coff debugging info, we continue on if a psymtab | |
2913 | can't be found. */ | |
100e3935 TT |
2914 | struct compunit_symtab *result |
2915 | = obj_file->find_pc_sect_compunit_symtab (msymbol, pc, | |
2916 | section, 0); | |
2917 | if (result != nullptr) | |
2918 | return result; | |
c906108c | 2919 | |
61eb46a4 | 2920 | if (section != 0) |
d8aeb77f | 2921 | { |
548a89df | 2922 | struct symbol *found_sym = nullptr; |
61eb46a4 | 2923 | |
bd24c5d6 | 2924 | for (int b_index = GLOBAL_BLOCK; |
548a89df | 2925 | b_index <= STATIC_BLOCK && found_sym == nullptr; |
bd24c5d6 | 2926 | ++b_index) |
d8aeb77f | 2927 | { |
63d609de | 2928 | const struct block *b = bv->block (b_index); |
548a89df | 2929 | for (struct symbol *sym : block_iterator_range (b)) |
bd24c5d6 | 2930 | { |
ebbc3a7d | 2931 | if (matching_obj_sections (sym->obj_section (obj_file), |
bd24c5d6 | 2932 | section)) |
548a89df TT |
2933 | { |
2934 | found_sym = sym; | |
2935 | break; | |
2936 | } | |
bd24c5d6 | 2937 | } |
d8aeb77f | 2938 | } |
548a89df | 2939 | if (found_sym == nullptr) |
61eb46a4 | 2940 | continue; /* No symbol in this symtab matches |
d8aeb77f | 2941 | section. */ |
d8aeb77f | 2942 | } |
61eb46a4 TV |
2943 | |
2944 | /* Cust is best found sofar, save it. */ | |
2945 | best_cust = cust; | |
2946 | best_cust_range = range; | |
d8aeb77f TT |
2947 | } |
2948 | } | |
c906108c | 2949 | |
43f3e411 DE |
2950 | if (best_cust != NULL) |
2951 | return best_cust; | |
c906108c | 2952 | |
072cabfe DE |
2953 | /* Not found in symtabs, search the "quick" symtabs (e.g. psymtabs). */ |
2954 | ||
2030c079 | 2955 | for (objfile *objf : current_program_space->objfiles ()) |
aed57c53 | 2956 | { |
4d080b46 TT |
2957 | struct compunit_symtab *result |
2958 | = objf->find_pc_sect_compunit_symtab (msymbol, pc, section, 1); | |
aed57c53 TT |
2959 | if (result != NULL) |
2960 | return result; | |
2961 | } | |
ccefe4c4 TT |
2962 | |
2963 | return NULL; | |
c906108c SS |
2964 | } |
2965 | ||
43f3e411 DE |
2966 | /* Find the compunit symtab associated with PC. |
2967 | This will read in debug info as necessary. | |
2968 | Backward compatibility, no section. */ | |
c906108c | 2969 | |
43f3e411 DE |
2970 | struct compunit_symtab * |
2971 | find_pc_compunit_symtab (CORE_ADDR pc) | |
c906108c | 2972 | { |
43f3e411 | 2973 | return find_pc_sect_compunit_symtab (pc, find_pc_mapped_section (pc)); |
c906108c | 2974 | } |
71a3c369 TT |
2975 | |
2976 | /* See symtab.h. */ | |
2977 | ||
2978 | struct symbol * | |
2979 | find_symbol_at_address (CORE_ADDR address) | |
2980 | { | |
1f2624a3 TT |
2981 | /* A helper function to search a given symtab for a symbol matching |
2982 | ADDR. */ | |
2983 | auto search_symtab = [] (compunit_symtab *symtab, CORE_ADDR addr) -> symbol * | |
aed57c53 | 2984 | { |
af39c5c8 | 2985 | const struct blockvector *bv = symtab->blockvector (); |
71a3c369 | 2986 | |
1f2624a3 | 2987 | for (int i = GLOBAL_BLOCK; i <= STATIC_BLOCK; ++i) |
aed57c53 | 2988 | { |
63d609de | 2989 | const struct block *b = bv->block (i); |
71a3c369 | 2990 | |
548a89df | 2991 | for (struct symbol *sym : block_iterator_range (b)) |
71a3c369 | 2992 | { |
66d7f48f | 2993 | if (sym->aclass () == LOC_STATIC |
4aeddc50 | 2994 | && sym->value_address () == addr) |
1f2624a3 TT |
2995 | return sym; |
2996 | } | |
2997 | } | |
2998 | return nullptr; | |
2999 | }; | |
aed57c53 | 3000 | |
1f2624a3 TT |
3001 | for (objfile *objfile : current_program_space->objfiles ()) |
3002 | { | |
4d080b46 TT |
3003 | /* If this objfile was read with -readnow, then we need to |
3004 | search the symtabs directly. */ | |
3005 | if ((objfile->flags & OBJF_READNOW) != 0) | |
1f2624a3 TT |
3006 | { |
3007 | for (compunit_symtab *symtab : objfile->compunits ()) | |
3008 | { | |
3009 | struct symbol *sym = search_symtab (symtab, address); | |
3010 | if (sym != nullptr) | |
3011 | return sym; | |
3012 | } | |
3013 | } | |
3014 | else | |
3015 | { | |
3016 | struct compunit_symtab *symtab | |
4d080b46 | 3017 | = objfile->find_compunit_symtab_by_address (address); |
1f2624a3 TT |
3018 | if (symtab != NULL) |
3019 | { | |
3020 | struct symbol *sym = search_symtab (symtab, address); | |
3021 | if (sym != nullptr) | |
3022 | return sym; | |
71a3c369 | 3023 | } |
aed57c53 TT |
3024 | } |
3025 | } | |
71a3c369 TT |
3026 | |
3027 | return NULL; | |
3028 | } | |
3029 | ||
c906108c | 3030 | \f |
c5aa993b | 3031 | |
7e73cedf | 3032 | /* Find the source file and line number for a given PC value and SECTION. |
c906108c SS |
3033 | Return a structure containing a symtab pointer, a line number, |
3034 | and a pc range for the entire source line. | |
3035 | The value's .pc field is NOT the specified pc. | |
3036 | NOTCURRENT nonzero means, if specified pc is on a line boundary, | |
3037 | use the line that ends there. Otherwise, in that case, the line | |
3038 | that begins there is used. */ | |
3039 | ||
3040 | /* The big complication here is that a line may start in one file, and end just | |
3041 | before the start of another file. This usually occurs when you #include | |
3042 | code in the middle of a subroutine. To properly find the end of a line's PC | |
3043 | range, we must search all symtabs associated with this compilation unit, and | |
3044 | find the one whose first PC is closer than that of the next line in this | |
3045 | symtab. */ | |
3046 | ||
c906108c | 3047 | struct symtab_and_line |
714835d5 | 3048 | find_pc_sect_line (CORE_ADDR pc, struct obj_section *section, int notcurrent) |
c906108c | 3049 | { |
43f3e411 | 3050 | struct compunit_symtab *cust; |
977a0c16 | 3051 | const linetable *l; |
52f0bd74 | 3052 | int len; |
977a0c16 | 3053 | const linetable_entry *item; |
346d1dfe | 3054 | const struct blockvector *bv; |
7cbd4a93 | 3055 | struct bound_minimal_symbol msymbol; |
c906108c SS |
3056 | |
3057 | /* Info on best line seen so far, and where it starts, and its file. */ | |
3058 | ||
977a0c16 | 3059 | const linetable_entry *best = NULL; |
c906108c SS |
3060 | CORE_ADDR best_end = 0; |
3061 | struct symtab *best_symtab = 0; | |
3062 | ||
3063 | /* Store here the first line number | |
3064 | of a file which contains the line at the smallest pc after PC. | |
3065 | If we don't find a line whose range contains PC, | |
3066 | we will use a line one less than this, | |
3067 | with a range from the start of that file to the first line's pc. */ | |
977a0c16 | 3068 | const linetable_entry *alt = NULL; |
c906108c SS |
3069 | |
3070 | /* Info on best line seen in this file. */ | |
3071 | ||
977a0c16 | 3072 | const linetable_entry *prev; |
c906108c SS |
3073 | |
3074 | /* If this pc is not from the current frame, | |
3075 | it is the address of the end of a call instruction. | |
3076 | Quite likely that is the start of the following statement. | |
3077 | But what we want is the statement containing the instruction. | |
3078 | Fudge the pc to make sure we get that. */ | |
3079 | ||
b77b1eb7 JB |
3080 | /* It's tempting to assume that, if we can't find debugging info for |
3081 | any function enclosing PC, that we shouldn't search for line | |
3082 | number info, either. However, GAS can emit line number info for | |
3083 | assembly files --- very helpful when debugging hand-written | |
3084 | assembly code. In such a case, we'd have no debug info for the | |
3085 | function, but we would have line info. */ | |
648f4f79 | 3086 | |
c906108c SS |
3087 | if (notcurrent) |
3088 | pc -= 1; | |
3089 | ||
c5aa993b | 3090 | /* elz: added this because this function returned the wrong |
c906108c | 3091 | information if the pc belongs to a stub (import/export) |
c378eb4e | 3092 | to call a shlib function. This stub would be anywhere between |
9af17804 | 3093 | two functions in the target, and the line info was erroneously |
c378eb4e MS |
3094 | taken to be the one of the line before the pc. */ |
3095 | ||
c906108c | 3096 | /* RT: Further explanation: |
c5aa993b | 3097 | |
c906108c SS |
3098 | * We have stubs (trampolines) inserted between procedures. |
3099 | * | |
3100 | * Example: "shr1" exists in a shared library, and a "shr1" stub also | |
3101 | * exists in the main image. | |
3102 | * | |
3103 | * In the minimal symbol table, we have a bunch of symbols | |
c378eb4e | 3104 | * sorted by start address. The stubs are marked as "trampoline", |
c906108c SS |
3105 | * the others appear as text. E.g.: |
3106 | * | |
9af17804 | 3107 | * Minimal symbol table for main image |
c906108c SS |
3108 | * main: code for main (text symbol) |
3109 | * shr1: stub (trampoline symbol) | |
3110 | * foo: code for foo (text symbol) | |
3111 | * ... | |
3112 | * Minimal symbol table for "shr1" image: | |
3113 | * ... | |
3114 | * shr1: code for shr1 (text symbol) | |
3115 | * ... | |
3116 | * | |
3117 | * So the code below is trying to detect if we are in the stub | |
3118 | * ("shr1" stub), and if so, find the real code ("shr1" trampoline), | |
3119 | * and if found, do the symbolization from the real-code address | |
3120 | * rather than the stub address. | |
3121 | * | |
3122 | * Assumptions being made about the minimal symbol table: | |
3123 | * 1. lookup_minimal_symbol_by_pc() will return a trampoline only | |
c378eb4e | 3124 | * if we're really in the trampoline.s If we're beyond it (say |
9af17804 | 3125 | * we're in "foo" in the above example), it'll have a closer |
c906108c SS |
3126 | * symbol (the "foo" text symbol for example) and will not |
3127 | * return the trampoline. | |
3128 | * 2. lookup_minimal_symbol_text() will find a real text symbol | |
3129 | * corresponding to the trampoline, and whose address will | |
c378eb4e | 3130 | * be different than the trampoline address. I put in a sanity |
c906108c SS |
3131 | * check for the address being the same, to avoid an |
3132 | * infinite recursion. | |
3133 | */ | |
c5aa993b | 3134 | msymbol = lookup_minimal_symbol_by_pc (pc); |
7cbd4a93 | 3135 | if (msymbol.minsym != NULL) |
60f62e2b | 3136 | if (msymbol.minsym->type () == mst_solib_trampoline) |
c5aa993b | 3137 | { |
77e371c0 | 3138 | struct bound_minimal_symbol mfunsym |
c9d95fa3 | 3139 | = lookup_minimal_symbol_text (msymbol.minsym->linkage_name (), |
77e371c0 TT |
3140 | NULL); |
3141 | ||
3142 | if (mfunsym.minsym == NULL) | |
c5aa993b JM |
3143 | /* I eliminated this warning since it is coming out |
3144 | * in the following situation: | |
3145 | * gdb shmain // test program with shared libraries | |
3146 | * (gdb) break shr1 // function in shared lib | |
3147 | * Warning: In stub for ... | |
9af17804 | 3148 | * In the above situation, the shared lib is not loaded yet, |
c5aa993b JM |
3149 | * so of course we can't find the real func/line info, |
3150 | * but the "break" still works, and the warning is annoying. | |
c378eb4e | 3151 | * So I commented out the warning. RT */ |
3e43a32a | 3152 | /* warning ("In stub for %s; unable to find real function/line info", |
987012b8 | 3153 | msymbol->linkage_name ()); */ |
c378eb4e | 3154 | ; |
c5aa993b | 3155 | /* fall through */ |
4aeddc50 SM |
3156 | else if (mfunsym.value_address () |
3157 | == msymbol.value_address ()) | |
c5aa993b | 3158 | /* Avoid infinite recursion */ |
c378eb4e | 3159 | /* See above comment about why warning is commented out. */ |
3e43a32a | 3160 | /* warning ("In stub for %s; unable to find real function/line info", |
987012b8 | 3161 | msymbol->linkage_name ()); */ |
c378eb4e | 3162 | ; |
c5aa993b JM |
3163 | /* fall through */ |
3164 | else | |
dd69bf7a KB |
3165 | { |
3166 | /* Detect an obvious case of infinite recursion. If this | |
3167 | should occur, we'd like to know about it, so error out, | |
3168 | fatally. */ | |
4aeddc50 | 3169 | if (mfunsym.value_address () == pc) |
f34652de | 3170 | internal_error (_("Infinite recursion detected in find_pc_sect_line;" |
dd69bf7a KB |
3171 | "please file a bug report")); |
3172 | ||
4aeddc50 | 3173 | return find_pc_line (mfunsym.value_address (), 0); |
dd69bf7a | 3174 | } |
c5aa993b | 3175 | } |
c906108c | 3176 | |
51abb421 PA |
3177 | symtab_and_line val; |
3178 | val.pspace = current_program_space; | |
c906108c | 3179 | |
43f3e411 DE |
3180 | cust = find_pc_sect_compunit_symtab (pc, section); |
3181 | if (cust == NULL) | |
c906108c | 3182 | { |
c378eb4e | 3183 | /* If no symbol information, return previous pc. */ |
c906108c SS |
3184 | if (notcurrent) |
3185 | pc++; | |
3186 | val.pc = pc; | |
3187 | return val; | |
3188 | } | |
3189 | ||
af39c5c8 | 3190 | bv = cust->blockvector (); |
1acc9dca | 3191 | struct objfile *objfile = cust->objfile (); |
c906108c SS |
3192 | |
3193 | /* Look at all the symtabs that share this blockvector. | |
3194 | They all have the same apriori range, that we found was right; | |
3195 | but they have different line tables. */ | |
3196 | ||
102cc235 | 3197 | for (symtab *iter_s : cust->filetabs ()) |
c906108c SS |
3198 | { |
3199 | /* Find the best line in this symtab. */ | |
5b607461 | 3200 | l = iter_s->linetable (); |
c906108c | 3201 | if (!l) |
c5aa993b | 3202 | continue; |
c906108c SS |
3203 | len = l->nitems; |
3204 | if (len <= 0) | |
3205 | { | |
3206 | /* I think len can be zero if the symtab lacks line numbers | |
3207 | (e.g. gcc -g1). (Either that or the LINETABLE is NULL; | |
3208 | I'm not sure which, and maybe it depends on the symbol | |
3209 | reader). */ | |
3210 | continue; | |
3211 | } | |
3212 | ||
3213 | prev = NULL; | |
c378eb4e | 3214 | item = l->item; /* Get first line info. */ |
c906108c SS |
3215 | |
3216 | /* Is this file's first line closer than the first lines of other files? | |
dda83cd7 | 3217 | If so, record this file, and its first line, as best alternate. */ |
1acc9dca | 3218 | if (item->pc (objfile) > pc |
0434c3ef | 3219 | && (!alt || item->unrelocated_pc () < alt->unrelocated_pc ())) |
c656bca5 | 3220 | alt = item; |
c906108c | 3221 | |
48e0f38c TT |
3222 | auto pc_compare = [] (const unrelocated_addr &comp_pc, |
3223 | const struct linetable_entry & lhs) | |
7cbe16e9 | 3224 | { |
0434c3ef | 3225 | return comp_pc < lhs.unrelocated_pc (); |
7cbe16e9 | 3226 | }; |
c906108c | 3227 | |
977a0c16 TT |
3228 | const linetable_entry *first = item; |
3229 | const linetable_entry *last = item + len; | |
48e0f38c TT |
3230 | item = (std::upper_bound |
3231 | (first, last, | |
3232 | unrelocated_addr (pc - objfile->text_section_offset ()), | |
3233 | pc_compare)); | |
7cbe16e9 | 3234 | if (item != first) |
aaba0d3a GL |
3235 | { |
3236 | prev = item - 1; /* Found a matching item. */ | |
3237 | /* At this point, prev is a line whose address is <= pc. However, we | |
3238 | don't know if ITEM is pointing to the same statement or not. */ | |
3239 | while (item != last && prev->line == item->line && !item->is_stmt) | |
3240 | item++; | |
3241 | } | |
c906108c SS |
3242 | |
3243 | /* At this point, prev points at the line whose start addr is <= pc, and | |
aaba0d3a | 3244 | item points at the next statement. If we ran off the end of the linetable |
dda83cd7 SM |
3245 | (pc >= start of the last line), then prev == item. If pc < start of |
3246 | the first line, prev will not be set. */ | |
c906108c SS |
3247 | |
3248 | /* Is this file's best line closer than the best in the other files? | |
dda83cd7 SM |
3249 | If so, record this file, and its best line, as best so far. Don't |
3250 | save prev if it represents the end of a function (i.e. line number | |
3251 | 0) instead of a real line. */ | |
c906108c | 3252 | |
0434c3ef TT |
3253 | if (prev && prev->line |
3254 | && (!best || prev->unrelocated_pc () > best->unrelocated_pc ())) | |
c906108c SS |
3255 | { |
3256 | best = prev; | |
43f3e411 | 3257 | best_symtab = iter_s; |
25d53da1 | 3258 | |
8c95582d AB |
3259 | /* If during the binary search we land on a non-statement entry, |
3260 | scan backward through entries at the same address to see if | |
3261 | there is an entry marked as is-statement. In theory this | |
3262 | duplication should have been removed from the line table | |
3263 | during construction, this is just a double check. If the line | |
3264 | table has had the duplication removed then this should be | |
3265 | pretty cheap. */ | |
3266 | if (!best->is_stmt) | |
3267 | { | |
977a0c16 | 3268 | const linetable_entry *tmp = best; |
0434c3ef TT |
3269 | while (tmp > first |
3270 | && (tmp - 1)->unrelocated_pc () == tmp->unrelocated_pc () | |
8c95582d AB |
3271 | && (tmp - 1)->line != 0 && !tmp->is_stmt) |
3272 | --tmp; | |
3273 | if (tmp->is_stmt) | |
3274 | best = tmp; | |
3275 | } | |
3276 | ||
25d53da1 | 3277 | /* Discard BEST_END if it's before the PC of the current BEST. */ |
1acc9dca | 3278 | if (best_end <= best->pc (objfile)) |
25d53da1 | 3279 | best_end = 0; |
c906108c | 3280 | } |
25d53da1 KB |
3281 | |
3282 | /* If another line (denoted by ITEM) is in the linetable and its | |
7cbe16e9 | 3283 | PC is after BEST's PC, but before the current BEST_END, then |
25d53da1 | 3284 | use ITEM's PC as the new best_end. */ |
0434c3ef TT |
3285 | if (best && item < last |
3286 | && item->unrelocated_pc () > best->unrelocated_pc () | |
1acc9dca TT |
3287 | && (best_end == 0 || best_end > item->pc (objfile))) |
3288 | best_end = item->pc (objfile); | |
c906108c SS |
3289 | } |
3290 | ||
3291 | if (!best_symtab) | |
3292 | { | |
e86e87f7 DJ |
3293 | /* If we didn't find any line number info, just return zeros. |
3294 | We used to return alt->line - 1 here, but that could be | |
3295 | anywhere; if we don't have line number info for this PC, | |
3296 | don't make some up. */ | |
3297 | val.pc = pc; | |
c906108c | 3298 | } |
e8717518 FF |
3299 | else if (best->line == 0) |
3300 | { | |
3301 | /* If our best fit is in a range of PC's for which no line | |
3302 | number info is available (line number is zero) then we didn't | |
c378eb4e | 3303 | find any valid line information. */ |
e8717518 FF |
3304 | val.pc = pc; |
3305 | } | |
c906108c SS |
3306 | else |
3307 | { | |
8c95582d | 3308 | val.is_stmt = best->is_stmt; |
c906108c SS |
3309 | val.symtab = best_symtab; |
3310 | val.line = best->line; | |
1acc9dca TT |
3311 | val.pc = best->pc (objfile); |
3312 | if (best_end && (!alt || best_end < alt->pc (objfile))) | |
c906108c SS |
3313 | val.end = best_end; |
3314 | else if (alt) | |
1acc9dca | 3315 | val.end = alt->pc (objfile); |
c906108c | 3316 | else |
63d609de | 3317 | val.end = bv->global_block ()->end (); |
c906108c SS |
3318 | } |
3319 | val.section = section; | |
3320 | return val; | |
3321 | } | |
3322 | ||
c378eb4e | 3323 | /* Backward compatibility (no section). */ |
c906108c SS |
3324 | |
3325 | struct symtab_and_line | |
fba45db2 | 3326 | find_pc_line (CORE_ADDR pc, int notcurrent) |
c906108c | 3327 | { |
714835d5 | 3328 | struct obj_section *section; |
c906108c SS |
3329 | |
3330 | section = find_pc_overlay (pc); | |
31a8f60f AB |
3331 | if (!pc_in_unmapped_range (pc, section)) |
3332 | return find_pc_sect_line (pc, section, notcurrent); | |
3333 | ||
3334 | /* If the original PC was an unmapped address then we translate this to a | |
3335 | mapped address in order to lookup the sal. However, as the user | |
3336 | passed us an unmapped address it makes more sense to return a result | |
3337 | that has the pc and end fields translated to unmapped addresses. */ | |
3338 | pc = overlay_mapped_address (pc, section); | |
3339 | symtab_and_line sal = find_pc_sect_line (pc, section, notcurrent); | |
3340 | sal.pc = overlay_unmapped_address (sal.pc, section); | |
3341 | sal.end = overlay_unmapped_address (sal.end, section); | |
3342 | return sal; | |
c906108c | 3343 | } |
34248c3a | 3344 | |
fe6356de CL |
3345 | /* Compare two symtab_and_line entries. Return true if both have |
3346 | the same line number and the same symtab pointer. That means we | |
3347 | are dealing with two entries from the same line and from the same | |
3348 | source file. | |
3349 | ||
3350 | Return false otherwise. */ | |
3351 | ||
3352 | static bool | |
3353 | sal_line_symtab_matches_p (const symtab_and_line &sal1, | |
3354 | const symtab_and_line &sal2) | |
3355 | { | |
3356 | return sal1.line == sal2.line && sal1.symtab == sal2.symtab; | |
3357 | } | |
3358 | ||
3359 | /* See symtah.h. */ | |
3360 | ||
3361 | std::optional<CORE_ADDR> | |
3362 | find_line_range_start (CORE_ADDR pc) | |
3363 | { | |
3364 | struct symtab_and_line current_sal = find_pc_line (pc, 0); | |
3365 | ||
3366 | if (current_sal.line == 0) | |
3367 | return {}; | |
3368 | ||
3369 | struct symtab_and_line prev_sal = find_pc_line (current_sal.pc - 1, 0); | |
3370 | ||
3371 | /* If the previous entry is for a different line, that means we are already | |
3372 | at the entry with the start PC for this line. */ | |
3373 | if (!sal_line_symtab_matches_p (prev_sal, current_sal)) | |
3374 | return current_sal.pc; | |
3375 | ||
3376 | /* Otherwise, keep looking for entries for the same line but with | |
3377 | smaller PC's. */ | |
3378 | bool done = false; | |
3379 | CORE_ADDR prev_pc; | |
3380 | while (!done) | |
3381 | { | |
3382 | prev_pc = prev_sal.pc; | |
3383 | ||
3384 | prev_sal = find_pc_line (prev_pc - 1, 0); | |
3385 | ||
3386 | /* Did we notice a line change? If so, we are done searching. */ | |
3387 | if (!sal_line_symtab_matches_p (prev_sal, current_sal)) | |
3388 | done = true; | |
3389 | } | |
3390 | ||
3391 | return prev_pc; | |
3392 | } | |
3393 | ||
34248c3a DE |
3394 | /* See symtab.h. */ |
3395 | ||
3396 | struct symtab * | |
3397 | find_pc_line_symtab (CORE_ADDR pc) | |
3398 | { | |
3399 | struct symtab_and_line sal; | |
3400 | ||
3401 | /* This always passes zero for NOTCURRENT to find_pc_line. | |
3402 | There are currently no callers that ever pass non-zero. */ | |
3403 | sal = find_pc_line (pc, 0); | |
3404 | return sal.symtab; | |
3405 | } | |
c906108c | 3406 | \f |
c906108c SS |
3407 | /* Find line number LINE in any symtab whose name is the same as |
3408 | SYMTAB. | |
3409 | ||
3410 | If found, return the symtab that contains the linetable in which it was | |
3411 | found, set *INDEX to the index in the linetable of the best entry | |
ececd218 | 3412 | found, and set *EXACT_MATCH to true if the value returned is an |
c906108c SS |
3413 | exact match. |
3414 | ||
3415 | If not found, return NULL. */ | |
3416 | ||
50641945 | 3417 | struct symtab * |
5accd1a0 | 3418 | find_line_symtab (struct symtab *sym_tab, int line, |
ececd218 | 3419 | int *index, bool *exact_match) |
c906108c | 3420 | { |
6f43c46f | 3421 | int exact = 0; /* Initialized here to avoid a compiler warning. */ |
c906108c SS |
3422 | |
3423 | /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE | |
3424 | so far seen. */ | |
3425 | ||
3426 | int best_index; | |
977a0c16 | 3427 | const struct linetable *best_linetable; |
c906108c SS |
3428 | struct symtab *best_symtab; |
3429 | ||
3430 | /* First try looking it up in the given symtab. */ | |
5b607461 | 3431 | best_linetable = sym_tab->linetable (); |
5accd1a0 | 3432 | best_symtab = sym_tab; |
f8eba3c6 | 3433 | best_index = find_line_common (best_linetable, line, &exact, 0); |
c906108c SS |
3434 | if (best_index < 0 || !exact) |
3435 | { | |
3436 | /* Didn't find an exact match. So we better keep looking for | |
dda83cd7 SM |
3437 | another symtab with the same name. In the case of xcoff, |
3438 | multiple csects for one source file (produced by IBM's FORTRAN | |
3439 | compiler) produce multiple symtabs (this is unavoidable | |
3440 | assuming csects can be at arbitrary places in memory and that | |
3441 | the GLOBAL_BLOCK of a symtab has a begin and end address). */ | |
c906108c SS |
3442 | |
3443 | /* BEST is the smallest linenumber > LINE so far seen, | |
dda83cd7 SM |
3444 | or 0 if none has been seen so far. |
3445 | BEST_INDEX and BEST_LINETABLE identify the item for it. */ | |
c906108c SS |
3446 | int best; |
3447 | ||
c906108c SS |
3448 | if (best_index >= 0) |
3449 | best = best_linetable->item[best_index].line; | |
3450 | else | |
3451 | best = 0; | |
3452 | ||
2030c079 | 3453 | for (objfile *objfile : current_program_space->objfiles ()) |
4d080b46 | 3454 | objfile->expand_symtabs_with_fullname (symtab_to_fullname (sym_tab)); |
51432cca | 3455 | |
2030c079 | 3456 | for (objfile *objfile : current_program_space->objfiles ()) |
8b31193a | 3457 | { |
b669c953 | 3458 | for (compunit_symtab *cu : objfile->compunits ()) |
8b31193a | 3459 | { |
102cc235 | 3460 | for (symtab *s : cu->filetabs ()) |
8b31193a | 3461 | { |
977a0c16 | 3462 | const struct linetable *l; |
8b31193a TT |
3463 | int ind; |
3464 | ||
3465 | if (FILENAME_CMP (sym_tab->filename, s->filename) != 0) | |
3466 | continue; | |
3467 | if (FILENAME_CMP (symtab_to_fullname (sym_tab), | |
3468 | symtab_to_fullname (s)) != 0) | |
3469 | continue; | |
5b607461 | 3470 | l = s->linetable (); |
8b31193a TT |
3471 | ind = find_line_common (l, line, &exact, 0); |
3472 | if (ind >= 0) | |
3473 | { | |
3474 | if (exact) | |
3475 | { | |
3476 | best_index = ind; | |
3477 | best_linetable = l; | |
3478 | best_symtab = s; | |
3479 | goto done; | |
3480 | } | |
3481 | if (best == 0 || l->item[ind].line < best) | |
3482 | { | |
3483 | best = l->item[ind].line; | |
3484 | best_index = ind; | |
3485 | best_linetable = l; | |
3486 | best_symtab = s; | |
3487 | } | |
3488 | } | |
3489 | } | |
3490 | } | |
3491 | } | |
c906108c | 3492 | } |
c5aa993b | 3493 | done: |
c906108c SS |
3494 | if (best_index < 0) |
3495 | return NULL; | |
3496 | ||
3497 | if (index) | |
3498 | *index = best_index; | |
3499 | if (exact_match) | |
ececd218 | 3500 | *exact_match = (exact != 0); |
c906108c SS |
3501 | |
3502 | return best_symtab; | |
3503 | } | |
f8eba3c6 TT |
3504 | |
3505 | /* Given SYMTAB, returns all the PCs function in the symtab that | |
67d89901 TT |
3506 | exactly match LINE. Returns an empty vector if there are no exact |
3507 | matches, but updates BEST_ITEM in this case. */ | |
f8eba3c6 | 3508 | |
67d89901 | 3509 | std::vector<CORE_ADDR> |
f8eba3c6 | 3510 | find_pcs_for_symtab_line (struct symtab *symtab, int line, |
977a0c16 | 3511 | const linetable_entry **best_item) |
f8eba3c6 | 3512 | { |
c656bca5 | 3513 | int start = 0; |
67d89901 | 3514 | std::vector<CORE_ADDR> result; |
1acc9dca | 3515 | struct objfile *objfile = symtab->compunit ()->objfile (); |
f8eba3c6 TT |
3516 | |
3517 | /* First, collect all the PCs that are at this line. */ | |
3518 | while (1) | |
3519 | { | |
3520 | int was_exact; | |
3521 | int idx; | |
3522 | ||
5b607461 | 3523 | idx = find_line_common (symtab->linetable (), line, &was_exact, |
8435453b | 3524 | start); |
f8eba3c6 TT |
3525 | if (idx < 0) |
3526 | break; | |
3527 | ||
3528 | if (!was_exact) | |
3529 | { | |
977a0c16 | 3530 | const linetable_entry *item = &symtab->linetable ()->item[idx]; |
f8eba3c6 | 3531 | |
8c95582d AB |
3532 | if (*best_item == NULL |
3533 | || (item->line < (*best_item)->line && item->is_stmt)) | |
f8eba3c6 TT |
3534 | *best_item = item; |
3535 | ||
3536 | break; | |
3537 | } | |
3538 | ||
1acc9dca | 3539 | result.push_back (symtab->linetable ()->item[idx].pc (objfile)); |
f8eba3c6 TT |
3540 | start = idx + 1; |
3541 | } | |
3542 | ||
3543 | return result; | |
3544 | } | |
3545 | ||
c906108c SS |
3546 | \f |
3547 | /* Set the PC value for a given source file and line number and return true. | |
ececd218 | 3548 | Returns false for invalid line number (and sets the PC to 0). |
c906108c SS |
3549 | The source file is specified with a struct symtab. */ |
3550 | ||
ececd218 | 3551 | bool |
fba45db2 | 3552 | find_line_pc (struct symtab *symtab, int line, CORE_ADDR *pc) |
c906108c | 3553 | { |
977a0c16 | 3554 | const struct linetable *l; |
c906108c SS |
3555 | int ind; |
3556 | ||
3557 | *pc = 0; | |
3558 | if (symtab == 0) | |
ececd218 | 3559 | return false; |
c906108c SS |
3560 | |
3561 | symtab = find_line_symtab (symtab, line, &ind, NULL); | |
3562 | if (symtab != NULL) | |
3563 | { | |
5b607461 | 3564 | l = symtab->linetable (); |
1acc9dca | 3565 | *pc = l->item[ind].pc (symtab->compunit ()->objfile ()); |
ececd218 | 3566 | return true; |
c906108c SS |
3567 | } |
3568 | else | |
ececd218 | 3569 | return false; |
c906108c SS |
3570 | } |
3571 | ||
3572 | /* Find the range of pc values in a line. | |
3573 | Store the starting pc of the line into *STARTPTR | |
3574 | and the ending pc (start of next line) into *ENDPTR. | |
ececd218 CB |
3575 | Returns true to indicate success. |
3576 | Returns false if could not find the specified line. */ | |
c906108c | 3577 | |
ececd218 | 3578 | bool |
fba45db2 KB |
3579 | find_line_pc_range (struct symtab_and_line sal, CORE_ADDR *startptr, |
3580 | CORE_ADDR *endptr) | |
c906108c SS |
3581 | { |
3582 | CORE_ADDR startaddr; | |
3583 | struct symtab_and_line found_sal; | |
3584 | ||
3585 | startaddr = sal.pc; | |
c5aa993b | 3586 | if (startaddr == 0 && !find_line_pc (sal.symtab, sal.line, &startaddr)) |
ececd218 | 3587 | return false; |
c906108c SS |
3588 | |
3589 | /* This whole function is based on address. For example, if line 10 has | |
3590 | two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then | |
3591 | "info line *0x123" should say the line goes from 0x100 to 0x200 | |
3592 | and "info line *0x355" should say the line goes from 0x300 to 0x400. | |
3593 | This also insures that we never give a range like "starts at 0x134 | |
3594 | and ends at 0x12c". */ | |
3595 | ||
3596 | found_sal = find_pc_sect_line (startaddr, sal.section, 0); | |
3597 | if (found_sal.line != sal.line) | |
3598 | { | |
3599 | /* The specified line (sal) has zero bytes. */ | |
3600 | *startptr = found_sal.pc; | |
3601 | *endptr = found_sal.pc; | |
3602 | } | |
3603 | else | |
3604 | { | |
3605 | *startptr = found_sal.pc; | |
3606 | *endptr = found_sal.end; | |
3607 | } | |
ececd218 | 3608 | return true; |
c906108c SS |
3609 | } |
3610 | ||
3611 | /* Given a line table and a line number, return the index into the line | |
3612 | table for the pc of the nearest line whose number is >= the specified one. | |
3613 | Return -1 if none is found. The value is >= 0 if it is an index. | |
f8eba3c6 | 3614 | START is the index at which to start searching the line table. |
c906108c SS |
3615 | |
3616 | Set *EXACT_MATCH nonzero if the value returned is an exact match. */ | |
3617 | ||
3618 | static int | |
977a0c16 | 3619 | find_line_common (const linetable *l, int lineno, |
f8eba3c6 | 3620 | int *exact_match, int start) |
c906108c | 3621 | { |
52f0bd74 AC |
3622 | int i; |
3623 | int len; | |
c906108c SS |
3624 | |
3625 | /* BEST is the smallest linenumber > LINENO so far seen, | |
3626 | or 0 if none has been seen so far. | |
3627 | BEST_INDEX identifies the item for it. */ | |
3628 | ||
3629 | int best_index = -1; | |
3630 | int best = 0; | |
3631 | ||
b7589f7d DJ |
3632 | *exact_match = 0; |
3633 | ||
c906108c SS |
3634 | if (lineno <= 0) |
3635 | return -1; | |
3636 | if (l == 0) | |
3637 | return -1; | |
3638 | ||
3639 | len = l->nitems; | |
f8eba3c6 | 3640 | for (i = start; i < len; i++) |
c906108c | 3641 | { |
977a0c16 | 3642 | const linetable_entry *item = &(l->item[i]); |
c906108c | 3643 | |
8c95582d AB |
3644 | /* Ignore non-statements. */ |
3645 | if (!item->is_stmt) | |
3646 | continue; | |
3647 | ||
c906108c SS |
3648 | if (item->line == lineno) |
3649 | { | |
3650 | /* Return the first (lowest address) entry which matches. */ | |
3651 | *exact_match = 1; | |
3652 | return i; | |
3653 | } | |
3654 | ||
3655 | if (item->line > lineno && (best == 0 || item->line < best)) | |
3656 | { | |
3657 | best = item->line; | |
3658 | best_index = i; | |
3659 | } | |
3660 | } | |
3661 | ||
3662 | /* If we got here, we didn't get an exact match. */ | |
c906108c SS |
3663 | return best_index; |
3664 | } | |
3665 | ||
ececd218 | 3666 | bool |
fba45db2 | 3667 | find_pc_line_pc_range (CORE_ADDR pc, CORE_ADDR *startptr, CORE_ADDR *endptr) |
c906108c SS |
3668 | { |
3669 | struct symtab_and_line sal; | |
433759f7 | 3670 | |
c906108c SS |
3671 | sal = find_pc_line (pc, 0); |
3672 | *startptr = sal.pc; | |
3673 | *endptr = sal.end; | |
3674 | return sal.symtab != 0; | |
3675 | } | |
3676 | ||
cd2bb709 PA |
3677 | /* Helper for find_function_start_sal. Does most of the work, except |
3678 | setting the sal's symbol. */ | |
aab2f208 | 3679 | |
cd2bb709 PA |
3680 | static symtab_and_line |
3681 | find_function_start_sal_1 (CORE_ADDR func_addr, obj_section *section, | |
3682 | bool funfirstline) | |
aab2f208 | 3683 | { |
42ddae10 | 3684 | symtab_and_line sal = find_pc_sect_line (func_addr, section, 0); |
aab2f208 | 3685 | |
6e22494e | 3686 | if (funfirstline && sal.symtab != NULL |
c6159652 | 3687 | && (sal.symtab->compunit ()->locations_valid () |
1ee2e9f9 | 3688 | || sal.symtab->language () == language_asm)) |
6e22494e | 3689 | { |
3c86fae3 | 3690 | struct gdbarch *gdbarch = sal.symtab->compunit ()->objfile ()->arch (); |
141c5cc4 | 3691 | |
42ddae10 | 3692 | sal.pc = func_addr; |
141c5cc4 JK |
3693 | if (gdbarch_skip_entrypoint_p (gdbarch)) |
3694 | sal.pc = gdbarch_skip_entrypoint (gdbarch, sal.pc); | |
6e22494e JK |
3695 | return sal; |
3696 | } | |
3697 | ||
aab2f208 | 3698 | /* We always should have a line for the function start address. |
42ddae10 | 3699 | If we don't, something is odd. Create a plain SAL referring |
aab2f208 DE |
3700 | just the PC and hope that skip_prologue_sal (if requested) |
3701 | can find a line number for after the prologue. */ | |
42ddae10 | 3702 | if (sal.pc < func_addr) |
aab2f208 | 3703 | { |
51abb421 | 3704 | sal = {}; |
aab2f208 | 3705 | sal.pspace = current_program_space; |
42ddae10 | 3706 | sal.pc = func_addr; |
08be3fe3 | 3707 | sal.section = section; |
aab2f208 DE |
3708 | } |
3709 | ||
3710 | if (funfirstline) | |
3711 | skip_prologue_sal (&sal); | |
3712 | ||
3713 | return sal; | |
3714 | } | |
3715 | ||
42ddae10 PA |
3716 | /* See symtab.h. */ |
3717 | ||
cd2bb709 PA |
3718 | symtab_and_line |
3719 | find_function_start_sal (CORE_ADDR func_addr, obj_section *section, | |
3720 | bool funfirstline) | |
3721 | { | |
3722 | symtab_and_line sal | |
3723 | = find_function_start_sal_1 (func_addr, section, funfirstline); | |
3724 | ||
3725 | /* find_function_start_sal_1 does a linetable search, so it finds | |
3726 | the symtab and linenumber, but not a symbol. Fill in the | |
3727 | function symbol too. */ | |
3728 | sal.symbol = find_pc_sect_containing_function (sal.pc, sal.section); | |
3729 | ||
3730 | return sal; | |
3731 | } | |
3732 | ||
3733 | /* See symtab.h. */ | |
3734 | ||
42ddae10 PA |
3735 | symtab_and_line |
3736 | find_function_start_sal (symbol *sym, bool funfirstline) | |
3737 | { | |
42ddae10 | 3738 | symtab_and_line sal |
6395b628 | 3739 | = find_function_start_sal_1 (sym->value_block ()->entry_pc (), |
e19b2d94 | 3740 | sym->obj_section (sym->objfile ()), |
cd2bb709 | 3741 | funfirstline); |
42ddae10 PA |
3742 | sal.symbol = sym; |
3743 | return sal; | |
3744 | } | |
3745 | ||
3746 | ||
8c7a1ee8 EZ |
3747 | /* Given a function start address FUNC_ADDR and SYMTAB, find the first |
3748 | address for that function that has an entry in SYMTAB's line info | |
3749 | table. If such an entry cannot be found, return FUNC_ADDR | |
3750 | unaltered. */ | |
eca864fe | 3751 | |
70221824 | 3752 | static CORE_ADDR |
8c7a1ee8 EZ |
3753 | skip_prologue_using_lineinfo (CORE_ADDR func_addr, struct symtab *symtab) |
3754 | { | |
3755 | CORE_ADDR func_start, func_end; | |
977a0c16 | 3756 | const struct linetable *l; |
952a6d41 | 3757 | int i; |
8c7a1ee8 EZ |
3758 | |
3759 | /* Give up if this symbol has no lineinfo table. */ | |
5b607461 | 3760 | l = symtab->linetable (); |
8c7a1ee8 EZ |
3761 | if (l == NULL) |
3762 | return func_addr; | |
3763 | ||
3764 | /* Get the range for the function's PC values, or give up if we | |
3765 | cannot, for some reason. */ | |
3766 | if (!find_pc_partial_function (func_addr, NULL, &func_start, &func_end)) | |
3767 | return func_addr; | |
3768 | ||
1acc9dca TT |
3769 | struct objfile *objfile = symtab->compunit ()->objfile (); |
3770 | ||
8c7a1ee8 EZ |
3771 | /* Linetable entries are ordered by PC values, see the commentary in |
3772 | symtab.h where `struct linetable' is defined. Thus, the first | |
3773 | entry whose PC is in the range [FUNC_START..FUNC_END[ is the | |
3774 | address we are looking for. */ | |
3775 | for (i = 0; i < l->nitems; i++) | |
3776 | { | |
977a0c16 | 3777 | const linetable_entry *item = &(l->item[i]); |
1acc9dca | 3778 | CORE_ADDR item_pc = item->pc (objfile); |
8c7a1ee8 EZ |
3779 | |
3780 | /* Don't use line numbers of zero, they mark special entries in | |
3781 | the table. See the commentary on symtab.h before the | |
3782 | definition of struct linetable. */ | |
1acc9dca TT |
3783 | if (item->line > 0 && func_start <= item_pc && item_pc < func_end) |
3784 | return item_pc; | |
8c7a1ee8 EZ |
3785 | } |
3786 | ||
3787 | return func_addr; | |
3788 | } | |
3789 | ||
cc96ae7f LS |
3790 | /* Try to locate the address where a breakpoint should be placed past the |
3791 | prologue of function starting at FUNC_ADDR using the line table. | |
3792 | ||
3793 | Return the address associated with the first entry in the line-table for | |
3794 | the function starting at FUNC_ADDR which has prologue_end set to true if | |
3795 | such entry exist, otherwise return an empty optional. */ | |
3796 | ||
6b09f134 | 3797 | static std::optional<CORE_ADDR> |
cc96ae7f LS |
3798 | skip_prologue_using_linetable (CORE_ADDR func_addr) |
3799 | { | |
3800 | CORE_ADDR start_pc, end_pc; | |
3801 | ||
3802 | if (!find_pc_partial_function (func_addr, nullptr, &start_pc, &end_pc)) | |
3803 | return {}; | |
3804 | ||
3805 | const struct symtab_and_line prologue_sal = find_pc_line (start_pc, 0); | |
3806 | if (prologue_sal.symtab != nullptr | |
3807 | && prologue_sal.symtab->language () != language_asm) | |
3808 | { | |
977a0c16 | 3809 | const linetable *linetable = prologue_sal.symtab->linetable (); |
cc96ae7f | 3810 | |
1acc9dca | 3811 | struct objfile *objfile = prologue_sal.symtab->compunit ()->objfile (); |
48e0f38c TT |
3812 | |
3813 | unrelocated_addr unrel_start | |
3814 | = unrelocated_addr (start_pc - objfile->text_section_offset ()); | |
3815 | unrelocated_addr unrel_end | |
3816 | = unrelocated_addr (end_pc - objfile->text_section_offset ()); | |
1acc9dca | 3817 | |
cc96ae7f | 3818 | auto it = std::lower_bound |
48e0f38c TT |
3819 | (linetable->item, linetable->item + linetable->nitems, unrel_start, |
3820 | [] (const linetable_entry <e, unrelocated_addr pc) | |
cc96ae7f | 3821 | { |
0434c3ef | 3822 | return lte.unrelocated_pc () < pc; |
cc96ae7f LS |
3823 | }); |
3824 | ||
3825 | for (; | |
48e0f38c | 3826 | (it < linetable->item + linetable->nitems |
0434c3ef | 3827 | && it->unrelocated_pc () < unrel_end); |
cc96ae7f LS |
3828 | it++) |
3829 | if (it->prologue_end) | |
1acc9dca | 3830 | return {it->pc (objfile)}; |
cc96ae7f LS |
3831 | } |
3832 | ||
3833 | return {}; | |
3834 | } | |
3835 | ||
059acae7 UW |
3836 | /* Adjust SAL to the first instruction past the function prologue. |
3837 | If the PC was explicitly specified, the SAL is not changed. | |
5b0e2db4 AB |
3838 | If the line number was explicitly specified then the SAL can still be |
3839 | updated, unless the language for SAL is assembler, in which case the SAL | |
3840 | will be left unchanged. | |
3841 | If SAL is already past the prologue, then do nothing. */ | |
eca864fe | 3842 | |
059acae7 UW |
3843 | void |
3844 | skip_prologue_sal (struct symtab_and_line *sal) | |
3845 | { | |
3846 | struct symbol *sym; | |
3847 | struct symtab_and_line start_sal; | |
8be455d7 | 3848 | CORE_ADDR pc, saved_pc; |
059acae7 UW |
3849 | struct obj_section *section; |
3850 | const char *name; | |
3851 | struct objfile *objfile; | |
3852 | struct gdbarch *gdbarch; | |
3977b71f | 3853 | const struct block *b, *function_block; |
8be455d7 | 3854 | int force_skip, skip; |
c906108c | 3855 | |
a4b411d6 | 3856 | /* Do not change the SAL if PC was specified explicitly. */ |
059acae7 UW |
3857 | if (sal->explicit_pc) |
3858 | return; | |
6c95b8df | 3859 | |
5b0e2db4 AB |
3860 | /* In assembly code, if the user asks for a specific line then we should |
3861 | not adjust the SAL. The user already has instruction level | |
3862 | visibility in this case, so selecting a line other than one requested | |
3863 | is likely to be the wrong choice. */ | |
3864 | if (sal->symtab != nullptr | |
3865 | && sal->explicit_line | |
1ee2e9f9 | 3866 | && sal->symtab->language () == language_asm) |
5b0e2db4 AB |
3867 | return; |
3868 | ||
5ed8105e PA |
3869 | scoped_restore_current_pspace_and_thread restore_pspace_thread; |
3870 | ||
059acae7 | 3871 | switch_to_program_space_and_thread (sal->pspace); |
6c95b8df | 3872 | |
059acae7 UW |
3873 | sym = find_pc_sect_function (sal->pc, sal->section); |
3874 | if (sym != NULL) | |
bccdca4a | 3875 | { |
e19b2d94 | 3876 | objfile = sym->objfile (); |
6395b628 | 3877 | pc = sym->value_block ()->entry_pc (); |
ebbc3a7d | 3878 | section = sym->obj_section (objfile); |
987012b8 | 3879 | name = sym->linkage_name (); |
c906108c | 3880 | } |
059acae7 UW |
3881 | else |
3882 | { | |
7c7b6655 | 3883 | struct bound_minimal_symbol msymbol |
dda83cd7 | 3884 | = lookup_minimal_symbol_by_pc_section (sal->pc, sal->section); |
433759f7 | 3885 | |
7c7b6655 | 3886 | if (msymbol.minsym == NULL) |
5ed8105e | 3887 | return; |
059acae7 | 3888 | |
7c7b6655 | 3889 | objfile = msymbol.objfile; |
4aeddc50 | 3890 | pc = msymbol.value_address (); |
ebbc3a7d | 3891 | section = msymbol.minsym->obj_section (objfile); |
c9d95fa3 | 3892 | name = msymbol.minsym->linkage_name (); |
059acae7 UW |
3893 | } |
3894 | ||
08feed99 | 3895 | gdbarch = objfile->arch (); |
059acae7 | 3896 | |
8be455d7 JK |
3897 | /* Process the prologue in two passes. In the first pass try to skip the |
3898 | prologue (SKIP is true) and verify there is a real need for it (indicated | |
3899 | by FORCE_SKIP). If no such reason was found run a second pass where the | |
3900 | prologue is not skipped (SKIP is false). */ | |
059acae7 | 3901 | |
8be455d7 JK |
3902 | skip = 1; |
3903 | force_skip = 1; | |
059acae7 | 3904 | |
8be455d7 JK |
3905 | /* Be conservative - allow direct PC (without skipping prologue) only if we |
3906 | have proven the CU (Compilation Unit) supports it. sal->SYMTAB does not | |
3907 | have to be set by the caller so we use SYM instead. */ | |
08be3fe3 | 3908 | if (sym != NULL |
4206d69e | 3909 | && sym->symtab ()->compunit ()->locations_valid ()) |
8be455d7 | 3910 | force_skip = 0; |
059acae7 | 3911 | |
8be455d7 JK |
3912 | saved_pc = pc; |
3913 | do | |
c906108c | 3914 | { |
8be455d7 | 3915 | pc = saved_pc; |
4309257c | 3916 | |
cc96ae7f | 3917 | /* Check if the compiler explicitly indicated where a breakpoint should |
287de656 | 3918 | be placed to skip the prologue. */ |
6109f7a3 | 3919 | if (!ignore_prologue_end_flag && skip) |
cc96ae7f | 3920 | { |
6b09f134 | 3921 | std::optional<CORE_ADDR> linetable_pc |
cc96ae7f LS |
3922 | = skip_prologue_using_linetable (pc); |
3923 | if (linetable_pc) | |
3924 | { | |
3925 | pc = *linetable_pc; | |
3926 | start_sal = find_pc_sect_line (pc, section, 0); | |
3927 | force_skip = 1; | |
3928 | continue; | |
3929 | } | |
3930 | } | |
3931 | ||
8be455d7 JK |
3932 | /* If the function is in an unmapped overlay, use its unmapped LMA address, |
3933 | so that gdbarch_skip_prologue has something unique to work on. */ | |
3934 | if (section_is_overlay (section) && !section_is_mapped (section)) | |
3935 | pc = overlay_unmapped_address (pc, section); | |
3936 | ||
3937 | /* Skip "first line" of function (which is actually its prologue). */ | |
3938 | pc += gdbarch_deprecated_function_start_offset (gdbarch); | |
591a12a1 | 3939 | if (gdbarch_skip_entrypoint_p (gdbarch)) |
dda83cd7 | 3940 | pc = gdbarch_skip_entrypoint (gdbarch, pc); |
8be455d7 | 3941 | if (skip) |
46a62268 | 3942 | pc = gdbarch_skip_prologue_noexcept (gdbarch, pc); |
8be455d7 JK |
3943 | |
3944 | /* For overlays, map pc back into its mapped VMA range. */ | |
3945 | pc = overlay_mapped_address (pc, section); | |
3946 | ||
3947 | /* Calculate line number. */ | |
059acae7 | 3948 | start_sal = find_pc_sect_line (pc, section, 0); |
8be455d7 JK |
3949 | |
3950 | /* Check if gdbarch_skip_prologue left us in mid-line, and the next | |
3951 | line is still part of the same function. */ | |
3952 | if (skip && start_sal.pc != pc | |
6395b628 | 3953 | && (sym ? (sym->value_block ()->entry_pc () <= start_sal.end |
4b8791e1 | 3954 | && start_sal.end < sym->value_block()->end ()) |
7cbd4a93 TT |
3955 | : (lookup_minimal_symbol_by_pc_section (start_sal.end, section).minsym |
3956 | == lookup_minimal_symbol_by_pc_section (pc, section).minsym))) | |
8be455d7 JK |
3957 | { |
3958 | /* First pc of next line */ | |
3959 | pc = start_sal.end; | |
3960 | /* Recalculate the line number (might not be N+1). */ | |
3961 | start_sal = find_pc_sect_line (pc, section, 0); | |
3962 | } | |
3963 | ||
3964 | /* On targets with executable formats that don't have a concept of | |
3965 | constructors (ELF with .init has, PE doesn't), gcc emits a call | |
3966 | to `__main' in `main' between the prologue and before user | |
3967 | code. */ | |
3968 | if (gdbarch_skip_main_prologue_p (gdbarch) | |
7ccffd7c | 3969 | && name && strcmp_iw (name, "main") == 0) |
8be455d7 JK |
3970 | { |
3971 | pc = gdbarch_skip_main_prologue (gdbarch, pc); | |
3972 | /* Recalculate the line number (might not be N+1). */ | |
3973 | start_sal = find_pc_sect_line (pc, section, 0); | |
3974 | force_skip = 1; | |
3975 | } | |
4309257c | 3976 | } |
8be455d7 | 3977 | while (!force_skip && skip--); |
4309257c | 3978 | |
8c7a1ee8 EZ |
3979 | /* If we still don't have a valid source line, try to find the first |
3980 | PC in the lineinfo table that belongs to the same function. This | |
3981 | happens with COFF debug info, which does not seem to have an | |
3982 | entry in lineinfo table for the code after the prologue which has | |
3983 | no direct relation to source. For example, this was found to be | |
3984 | the case with the DJGPP target using "gcc -gcoff" when the | |
3985 | compiler inserted code after the prologue to make sure the stack | |
3986 | is aligned. */ | |
8be455d7 | 3987 | if (!force_skip && sym && start_sal.symtab == NULL) |
8c7a1ee8 | 3988 | { |
4206d69e | 3989 | pc = skip_prologue_using_lineinfo (pc, sym->symtab ()); |
8c7a1ee8 | 3990 | /* Recalculate the line number. */ |
059acae7 | 3991 | start_sal = find_pc_sect_line (pc, section, 0); |
8c7a1ee8 EZ |
3992 | } |
3993 | ||
059acae7 UW |
3994 | /* If we're already past the prologue, leave SAL unchanged. Otherwise |
3995 | forward SAL to the end of the prologue. */ | |
3996 | if (sal->pc >= pc) | |
3997 | return; | |
3998 | ||
3999 | sal->pc = pc; | |
4000 | sal->section = section; | |
059acae7 UW |
4001 | sal->symtab = start_sal.symtab; |
4002 | sal->line = start_sal.line; | |
4003 | sal->end = start_sal.end; | |
c906108c | 4004 | |
edb3359d DJ |
4005 | /* Check if we are now inside an inlined function. If we can, |
4006 | use the call site of the function instead. */ | |
059acae7 | 4007 | b = block_for_pc_sect (sal->pc, sal->section); |
edb3359d DJ |
4008 | function_block = NULL; |
4009 | while (b != NULL) | |
4010 | { | |
a4dfe747 | 4011 | if (b->function () != NULL && b->inlined_p ()) |
edb3359d | 4012 | function_block = b; |
6c00f721 | 4013 | else if (b->function () != NULL) |
edb3359d | 4014 | break; |
f135fe72 | 4015 | b = b->superblock (); |
edb3359d DJ |
4016 | } |
4017 | if (function_block != NULL | |
6c00f721 | 4018 | && function_block->function ()->line () != 0) |
edb3359d | 4019 | { |
6c00f721 SM |
4020 | sal->line = function_block->function ()->line (); |
4021 | sal->symtab = function_block->function ()->symtab (); | |
edb3359d | 4022 | } |
c906108c | 4023 | } |
50641945 | 4024 | |
f1f58506 DE |
4025 | /* Given PC at the function's start address, attempt to find the |
4026 | prologue end using SAL information. Return zero if the skip fails. | |
4027 | ||
4028 | A non-optimized prologue traditionally has one SAL for the function | |
4029 | and a second for the function body. A single line function has | |
4030 | them both pointing at the same line. | |
4031 | ||
4032 | An optimized prologue is similar but the prologue may contain | |
4033 | instructions (SALs) from the instruction body. Need to skip those | |
4034 | while not getting into the function body. | |
4035 | ||
4036 | The functions end point and an increasing SAL line are used as | |
4037 | indicators of the prologue's endpoint. | |
4038 | ||
4039 | This code is based on the function refine_prologue_limit | |
4040 | (found in ia64). */ | |
4041 | ||
4042 | CORE_ADDR | |
4043 | skip_prologue_using_sal (struct gdbarch *gdbarch, CORE_ADDR func_addr) | |
4044 | { | |
4045 | struct symtab_and_line prologue_sal; | |
4046 | CORE_ADDR start_pc; | |
4047 | CORE_ADDR end_pc; | |
4048 | const struct block *bl; | |
4049 | ||
4050 | /* Get an initial range for the function. */ | |
4051 | find_pc_partial_function (func_addr, NULL, &start_pc, &end_pc); | |
4052 | start_pc += gdbarch_deprecated_function_start_offset (gdbarch); | |
4053 | ||
4054 | prologue_sal = find_pc_line (start_pc, 0); | |
4055 | if (prologue_sal.line != 0) | |
4056 | { | |
4057 | /* For languages other than assembly, treat two consecutive line | |
4058 | entries at the same address as a zero-instruction prologue. | |
4059 | The GNU assembler emits separate line notes for each instruction | |
4060 | in a multi-instruction macro, but compilers generally will not | |
4061 | do this. */ | |
1ee2e9f9 | 4062 | if (prologue_sal.symtab->language () != language_asm) |
f1f58506 | 4063 | { |
1acc9dca TT |
4064 | struct objfile *objfile |
4065 | = prologue_sal.symtab->compunit ()->objfile (); | |
977a0c16 | 4066 | const linetable *linetable = prologue_sal.symtab->linetable (); |
e84060b4 | 4067 | gdb_assert (linetable->nitems > 0); |
f1f58506 DE |
4068 | int idx = 0; |
4069 | ||
4070 | /* Skip any earlier lines, and any end-of-sequence marker | |
4071 | from a previous function. */ | |
e84060b4 AB |
4072 | while (idx + 1 < linetable->nitems |
4073 | && (linetable->item[idx].pc (objfile) != prologue_sal.pc | |
4074 | || linetable->item[idx].line == 0)) | |
f1f58506 DE |
4075 | idx++; |
4076 | ||
e84060b4 | 4077 | if (idx + 1 < linetable->nitems |
f1f58506 | 4078 | && linetable->item[idx+1].line != 0 |
1acc9dca | 4079 | && linetable->item[idx+1].pc (objfile) == start_pc) |
f1f58506 DE |
4080 | return start_pc; |
4081 | } | |
4082 | ||
4083 | /* If there is only one sal that covers the entire function, | |
4084 | then it is probably a single line function, like | |
4085 | "foo(){}". */ | |
4086 | if (prologue_sal.end >= end_pc) | |
4087 | return 0; | |
4088 | ||
4089 | while (prologue_sal.end < end_pc) | |
4090 | { | |
4091 | struct symtab_and_line sal; | |
4092 | ||
4093 | sal = find_pc_line (prologue_sal.end, 0); | |
4094 | if (sal.line == 0) | |
4095 | break; | |
4096 | /* Assume that a consecutive SAL for the same (or larger) | |
4097 | line mark the prologue -> body transition. */ | |
4098 | if (sal.line >= prologue_sal.line) | |
4099 | break; | |
4100 | /* Likewise if we are in a different symtab altogether | |
4101 | (e.g. within a file included via #include). */ | |
4102 | if (sal.symtab != prologue_sal.symtab) | |
4103 | break; | |
4104 | ||
4105 | /* The line number is smaller. Check that it's from the | |
4106 | same function, not something inlined. If it's inlined, | |
4107 | then there is no point comparing the line numbers. */ | |
4108 | bl = block_for_pc (prologue_sal.end); | |
4109 | while (bl) | |
4110 | { | |
a4dfe747 | 4111 | if (bl->inlined_p ()) |
f1f58506 | 4112 | break; |
6c00f721 | 4113 | if (bl->function ()) |
f1f58506 DE |
4114 | { |
4115 | bl = NULL; | |
4116 | break; | |
4117 | } | |
f135fe72 | 4118 | bl = bl->superblock (); |
f1f58506 DE |
4119 | } |
4120 | if (bl != NULL) | |
4121 | break; | |
4122 | ||
4123 | /* The case in which compiler's optimizer/scheduler has | |
4124 | moved instructions into the prologue. We look ahead in | |
4125 | the function looking for address ranges whose | |
4126 | corresponding line number is less the first one that we | |
4127 | found for the function. This is more conservative then | |
4128 | refine_prologue_limit which scans a large number of SALs | |
4129 | looking for any in the prologue. */ | |
4130 | prologue_sal = sal; | |
4131 | } | |
4132 | } | |
4133 | ||
4134 | if (prologue_sal.end < end_pc) | |
4135 | /* Return the end of this line, or zero if we could not find a | |
4136 | line. */ | |
4137 | return prologue_sal.end; | |
4138 | else | |
4139 | /* Don't return END_PC, which is past the end of the function. */ | |
4140 | return prologue_sal.pc; | |
4141 | } | |
bf223d3e PA |
4142 | |
4143 | /* See symtab.h. */ | |
4144 | ||
528b729b GL |
4145 | std::optional<CORE_ADDR> |
4146 | find_epilogue_using_linetable (CORE_ADDR func_addr) | |
4147 | { | |
4148 | CORE_ADDR start_pc, end_pc; | |
4149 | ||
4150 | if (!find_pc_partial_function (func_addr, nullptr, &start_pc, &end_pc)) | |
4151 | return {}; | |
4152 | ||
4153 | const struct symtab_and_line sal = find_pc_line (start_pc, 0); | |
4154 | if (sal.symtab != nullptr && sal.symtab->language () != language_asm) | |
4155 | { | |
4156 | struct objfile *objfile = sal.symtab->compunit ()->objfile (); | |
4157 | unrelocated_addr unrel_start | |
4158 | = unrelocated_addr (start_pc - objfile->text_section_offset ()); | |
4159 | unrelocated_addr unrel_end | |
4160 | = unrelocated_addr (end_pc - objfile->text_section_offset ()); | |
4161 | ||
4162 | const linetable *linetable = sal.symtab->linetable (); | |
4163 | /* This should find the last linetable entry of the current function. | |
4164 | It is probably where the epilogue begins, but since the DWARF 5 | |
4165 | spec doesn't guarantee it, we iterate backwards through the function | |
4166 | until we either find it or are sure that it doesn't exist. */ | |
4167 | auto it = std::lower_bound | |
4168 | (linetable->item, linetable->item + linetable->nitems, unrel_end, | |
4169 | [] (const linetable_entry <e, unrelocated_addr pc) | |
4170 | { | |
4171 | return lte.unrelocated_pc () < pc; | |
4172 | }); | |
4173 | ||
4174 | while (it->unrelocated_pc () >= unrel_start) | |
4175 | { | |
4176 | if (it->epilogue_begin) | |
4177 | return {it->pc (objfile)}; | |
4178 | it --; | |
4179 | } | |
4180 | } | |
4181 | return {}; | |
4182 | } | |
4183 | ||
4184 | /* See symtab.h. */ | |
4185 | ||
bf223d3e PA |
4186 | symbol * |
4187 | find_function_alias_target (bound_minimal_symbol msymbol) | |
4188 | { | |
4024cf2b PA |
4189 | CORE_ADDR func_addr; |
4190 | if (!msymbol_is_function (msymbol.objfile, msymbol.minsym, &func_addr)) | |
bf223d3e PA |
4191 | return NULL; |
4192 | ||
4024cf2b | 4193 | symbol *sym = find_pc_function (func_addr); |
bf223d3e | 4194 | if (sym != NULL |
66d7f48f | 4195 | && sym->aclass () == LOC_BLOCK |
6395b628 | 4196 | && sym->value_block ()->entry_pc () == func_addr) |
bf223d3e PA |
4197 | return sym; |
4198 | ||
4199 | return NULL; | |
4200 | } | |
4201 | ||
f1f58506 | 4202 | \f |
c906108c SS |
4203 | /* If P is of the form "operator[ \t]+..." where `...' is |
4204 | some legitimate operator text, return a pointer to the | |
4205 | beginning of the substring of the operator text. | |
4206 | Otherwise, return "". */ | |
eca864fe | 4207 | |
96142726 TT |
4208 | static const char * |
4209 | operator_chars (const char *p, const char **end) | |
c906108c SS |
4210 | { |
4211 | *end = ""; | |
8090b426 | 4212 | if (!startswith (p, CP_OPERATOR_STR)) |
c906108c | 4213 | return *end; |
8090b426 | 4214 | p += CP_OPERATOR_LEN; |
c906108c SS |
4215 | |
4216 | /* Don't get faked out by `operator' being part of a longer | |
4217 | identifier. */ | |
c5aa993b | 4218 | if (isalpha (*p) || *p == '_' || *p == '$' || *p == '\0') |
c906108c SS |
4219 | return *end; |
4220 | ||
4221 | /* Allow some whitespace between `operator' and the operator symbol. */ | |
4222 | while (*p == ' ' || *p == '\t') | |
4223 | p++; | |
4224 | ||
c378eb4e | 4225 | /* Recognize 'operator TYPENAME'. */ |
c906108c | 4226 | |
c5aa993b | 4227 | if (isalpha (*p) || *p == '_' || *p == '$') |
c906108c | 4228 | { |
96142726 | 4229 | const char *q = p + 1; |
433759f7 | 4230 | |
c5aa993b | 4231 | while (isalnum (*q) || *q == '_' || *q == '$') |
c906108c SS |
4232 | q++; |
4233 | *end = q; | |
4234 | return p; | |
4235 | } | |
4236 | ||
53e8ad3d MS |
4237 | while (*p) |
4238 | switch (*p) | |
4239 | { | |
4240 | case '\\': /* regexp quoting */ | |
4241 | if (p[1] == '*') | |
4242 | { | |
3e43a32a | 4243 | if (p[2] == '=') /* 'operator\*=' */ |
53e8ad3d MS |
4244 | *end = p + 3; |
4245 | else /* 'operator\*' */ | |
4246 | *end = p + 2; | |
4247 | return p; | |
4248 | } | |
4249 | else if (p[1] == '[') | |
4250 | { | |
4251 | if (p[2] == ']') | |
3e43a32a MS |
4252 | error (_("mismatched quoting on brackets, " |
4253 | "try 'operator\\[\\]'")); | |
53e8ad3d MS |
4254 | else if (p[2] == '\\' && p[3] == ']') |
4255 | { | |
4256 | *end = p + 4; /* 'operator\[\]' */ | |
4257 | return p; | |
4258 | } | |
4259 | else | |
8a3fe4f8 | 4260 | error (_("nothing is allowed between '[' and ']'")); |
53e8ad3d | 4261 | } |
9af17804 | 4262 | else |
53e8ad3d | 4263 | { |
85102364 | 4264 | /* Gratuitous quote: skip it and move on. */ |
53e8ad3d MS |
4265 | p++; |
4266 | continue; | |
4267 | } | |
4268 | break; | |
4269 | case '!': | |
4270 | case '=': | |
4271 | case '*': | |
4272 | case '/': | |
4273 | case '%': | |
4274 | case '^': | |
4275 | if (p[1] == '=') | |
4276 | *end = p + 2; | |
4277 | else | |
4278 | *end = p + 1; | |
4279 | return p; | |
4280 | case '<': | |
4281 | case '>': | |
4282 | case '+': | |
4283 | case '-': | |
4284 | case '&': | |
4285 | case '|': | |
4286 | if (p[0] == '-' && p[1] == '>') | |
4287 | { | |
c378eb4e | 4288 | /* Struct pointer member operator 'operator->'. */ |
53e8ad3d MS |
4289 | if (p[2] == '*') |
4290 | { | |
4291 | *end = p + 3; /* 'operator->*' */ | |
4292 | return p; | |
4293 | } | |
4294 | else if (p[2] == '\\') | |
4295 | { | |
4296 | *end = p + 4; /* Hopefully 'operator->\*' */ | |
4297 | return p; | |
4298 | } | |
4299 | else | |
4300 | { | |
4301 | *end = p + 2; /* 'operator->' */ | |
4302 | return p; | |
4303 | } | |
4304 | } | |
4305 | if (p[1] == '=' || p[1] == p[0]) | |
4306 | *end = p + 2; | |
4307 | else | |
4308 | *end = p + 1; | |
4309 | return p; | |
4310 | case '~': | |
4311 | case ',': | |
c5aa993b | 4312 | *end = p + 1; |
53e8ad3d MS |
4313 | return p; |
4314 | case '(': | |
4315 | if (p[1] != ')') | |
3e43a32a MS |
4316 | error (_("`operator ()' must be specified " |
4317 | "without whitespace in `()'")); | |
c5aa993b | 4318 | *end = p + 2; |
53e8ad3d MS |
4319 | return p; |
4320 | case '?': | |
4321 | if (p[1] != ':') | |
3e43a32a MS |
4322 | error (_("`operator ?:' must be specified " |
4323 | "without whitespace in `?:'")); | |
53e8ad3d MS |
4324 | *end = p + 2; |
4325 | return p; | |
4326 | case '[': | |
4327 | if (p[1] != ']') | |
3e43a32a MS |
4328 | error (_("`operator []' must be specified " |
4329 | "without whitespace in `[]'")); | |
53e8ad3d MS |
4330 | *end = p + 2; |
4331 | return p; | |
4332 | default: | |
8a3fe4f8 | 4333 | error (_("`operator %s' not supported"), p); |
53e8ad3d MS |
4334 | break; |
4335 | } | |
4336 | ||
c906108c SS |
4337 | *end = ""; |
4338 | return *end; | |
4339 | } | |
c906108c | 4340 | \f |
c5aa993b | 4341 | |
4a0788e0 | 4342 | /* See class declaration. */ |
9fdc877b | 4343 | |
4a0788e0 | 4344 | info_sources_filter::info_sources_filter (match_on match_type, |
287de656 | 4345 | const char *regexp) |
4a0788e0 AB |
4346 | : m_match_type (match_type), |
4347 | m_regexp (regexp) | |
9fdc877b | 4348 | { |
4a0788e0 AB |
4349 | /* Setup the compiled regular expression M_C_REGEXP based on M_REGEXP. */ |
4350 | if (m_regexp != nullptr && *m_regexp != '\0') | |
4351 | { | |
4352 | gdb_assert (m_regexp != nullptr); | |
28cd9371 | 4353 | |
4a0788e0 AB |
4354 | int cflags = REG_NOSUB; |
4355 | #ifdef HAVE_CASE_INSENSITIVE_FILE_SYSTEM | |
4356 | cflags |= REG_ICASE; | |
4357 | #endif | |
4358 | m_c_regexp.emplace (m_regexp, cflags, _("Invalid regexp")); | |
4359 | } | |
4360 | } | |
28cd9371 | 4361 | |
4a0788e0 | 4362 | /* See class declaration. */ |
9fdc877b | 4363 | |
4a0788e0 AB |
4364 | bool |
4365 | info_sources_filter::matches (const char *fullname) const | |
4366 | { | |
4367 | /* Does it match regexp? */ | |
4368 | if (m_c_regexp.has_value ()) | |
4369 | { | |
4370 | const char *to_match; | |
4371 | std::string dirname; | |
4372 | ||
4373 | switch (m_match_type) | |
287de656 SM |
4374 | { |
4375 | case match_on::DIRNAME: | |
4376 | dirname = ldirname (fullname); | |
4377 | to_match = dirname.c_str (); | |
4378 | break; | |
4379 | case match_on::BASENAME: | |
4380 | to_match = lbasename (fullname); | |
4381 | break; | |
4382 | case match_on::FULLNAME: | |
4383 | to_match = fullname; | |
4384 | break; | |
b6aeb717 TT |
4385 | default: |
4386 | gdb_assert_not_reached ("bad m_match_type"); | |
287de656 | 4387 | } |
4a0788e0 AB |
4388 | |
4389 | if (m_c_regexp->exec (to_match, 0, NULL, 0) != 0) | |
287de656 | 4390 | return false; |
4a0788e0 AB |
4391 | } |
4392 | ||
4393 | return true; | |
4394 | } | |
4395 | ||
4a0788e0 AB |
4396 | /* Data structure to maintain the state used for printing the results of |
4397 | the 'info sources' command. */ | |
4398 | ||
4399 | struct output_source_filename_data | |
4400 | { | |
4401 | /* Create an object for displaying the results of the 'info sources' | |
0e350a05 AB |
4402 | command to UIOUT. FILTER must remain valid and unchanged for the |
4403 | lifetime of this object as this object retains a reference to FILTER. */ | |
4404 | output_source_filename_data (struct ui_out *uiout, | |
4405 | const info_sources_filter &filter) | |
4406 | : m_filter (filter), | |
4407 | m_uiout (uiout) | |
4a0788e0 AB |
4408 | { /* Nothing. */ } |
4409 | ||
4410 | DISABLE_COPY_AND_ASSIGN (output_source_filename_data); | |
4411 | ||
4412 | /* Reset enough state of this object so we can match against a new set of | |
4413 | files. The existing regular expression is retained though. */ | |
4414 | void reset_output () | |
4415 | { | |
4416 | m_first = true; | |
4417 | m_filename_seen_cache.clear (); | |
4418 | } | |
4419 | ||
0e350a05 AB |
4420 | /* Worker for sources_info, outputs the file name formatted for either |
4421 | cli or mi (based on the current_uiout). In cli mode displays | |
4422 | FULLNAME with a comma separating this name from any previously | |
4423 | printed name (line breaks are added at the comma). In MI mode | |
4424 | outputs a tuple containing DISP_NAME (the files display name), | |
4425 | FULLNAME, and EXPANDED_P (true when this file is from a fully | |
4426 | expanded symtab, otherwise false). */ | |
4427 | void output (const char *disp_name, const char *fullname, bool expanded_p); | |
eca864fe | 4428 | |
f4655dee TT |
4429 | /* An overload suitable for use as a callback to |
4430 | quick_symbol_functions::map_symbol_filenames. */ | |
4431 | void operator() (const char *filename, const char *fullname) | |
4432 | { | |
0e350a05 AB |
4433 | /* The false here indicates that this file is from an unexpanded |
4434 | symtab. */ | |
4435 | output (filename, fullname, false); | |
f4655dee | 4436 | } |
4a0788e0 | 4437 | |
bd742128 AB |
4438 | /* Return true if at least one filename has been printed (after a call to |
4439 | output) since either this object was created, or the last call to | |
4440 | reset_output. */ | |
4441 | bool printed_filename_p () const | |
4442 | { | |
4443 | return !m_first; | |
4444 | } | |
4445 | ||
4a0788e0 AB |
4446 | private: |
4447 | ||
4448 | /* Flag of whether we're printing the first one. */ | |
4449 | bool m_first = true; | |
4450 | ||
4451 | /* Cache of what we've seen so far. */ | |
4452 | filename_seen_cache m_filename_seen_cache; | |
4453 | ||
4454 | /* How source filename should be filtered. */ | |
4455 | const info_sources_filter &m_filter; | |
0e350a05 AB |
4456 | |
4457 | /* The object to which output is sent. */ | |
4458 | struct ui_out *m_uiout; | |
f4655dee TT |
4459 | }; |
4460 | ||
4a0788e0 AB |
4461 | /* See comment in class declaration above. */ |
4462 | ||
f4655dee | 4463 | void |
0e350a05 AB |
4464 | output_source_filename_data::output (const char *disp_name, |
4465 | const char *fullname, | |
4466 | bool expanded_p) | |
c94fdfd0 EZ |
4467 | { |
4468 | /* Since a single source file can result in several partial symbol | |
4469 | tables, we need to avoid printing it more than once. Note: if | |
4470 | some of the psymtabs are read in and some are not, it gets | |
4471 | printed both under "Source files for which symbols have been | |
4472 | read" and "Source files for which symbols will be read in on | |
4473 | demand". I consider this a reasonable way to deal with the | |
4474 | situation. I'm not sure whether this can also happen for | |
4475 | symtabs; it doesn't hurt to check. */ | |
4476 | ||
4a0788e0 | 4477 | /* Was NAME already seen? If so, then don't print it again. */ |
0e350a05 | 4478 | if (m_filename_seen_cache.seen (fullname)) |
4a0788e0 | 4479 | return; |
28cd9371 | 4480 | |
4a0788e0 | 4481 | /* If the filter rejects this file then don't print it. */ |
0e350a05 | 4482 | if (!m_filter.matches (fullname)) |
4a0788e0 | 4483 | return; |
28cd9371 | 4484 | |
0e350a05 AB |
4485 | ui_out_emit_tuple ui_emitter (m_uiout, nullptr); |
4486 | ||
28cd9371 | 4487 | /* Print it and reset *FIRST. */ |
4a0788e0 | 4488 | if (!m_first) |
0e350a05 | 4489 | m_uiout->text (", "); |
4a0788e0 | 4490 | m_first = false; |
c906108c | 4491 | |
1285ce86 | 4492 | m_uiout->wrap_hint (0); |
0e350a05 AB |
4493 | if (m_uiout->is_mi_like_p ()) |
4494 | { | |
4495 | m_uiout->field_string ("file", disp_name, file_name_style.style ()); | |
4496 | if (fullname != nullptr) | |
4497 | m_uiout->field_string ("fullname", fullname, | |
4498 | file_name_style.style ()); | |
4499 | m_uiout->field_string ("debug-fully-read", | |
4500 | (expanded_p ? "true" : "false")); | |
4501 | } | |
4502 | else | |
4503 | { | |
4504 | if (fullname == nullptr) | |
4505 | fullname = disp_name; | |
4506 | m_uiout->field_string ("fullname", fullname, | |
4507 | file_name_style.style ()); | |
4508 | } | |
c5aa993b | 4509 | } |
c906108c | 4510 | |
4a0788e0 AB |
4511 | /* For the 'info sources' command, what part of the file names should we be |
4512 | matching the user supplied regular expression against? */ | |
4513 | ||
4514 | struct filename_partial_match_opts | |
4515 | { | |
4516 | /* Only match the directory name part. */ | |
4517 | bool dirname = false; | |
4518 | ||
4519 | /* Only match the basename part. */ | |
4520 | bool basename = false; | |
4521 | }; | |
4522 | ||
28cd9371 PW |
4523 | using isrc_flag_option_def |
4524 | = gdb::option::flag_option_def<filename_partial_match_opts>; | |
4525 | ||
4526 | static const gdb::option::option_def info_sources_option_defs[] = { | |
4527 | ||
4528 | isrc_flag_option_def { | |
4529 | "dirname", | |
4530 | [] (filename_partial_match_opts *opts) { return &opts->dirname; }, | |
4531 | N_("Show only the files having a dirname matching REGEXP."), | |
4532 | }, | |
4533 | ||
4534 | isrc_flag_option_def { | |
4535 | "basename", | |
4536 | [] (filename_partial_match_opts *opts) { return &opts->basename; }, | |
4537 | N_("Show only the files having a basename matching REGEXP."), | |
4538 | }, | |
4539 | ||
4540 | }; | |
4541 | ||
4542 | /* Create an option_def_group for the "info sources" options, with | |
4543 | ISRC_OPTS as context. */ | |
4544 | ||
4545 | static inline gdb::option::option_def_group | |
4546 | make_info_sources_options_def_group (filename_partial_match_opts *isrc_opts) | |
4547 | { | |
4548 | return {{info_sources_option_defs}, isrc_opts}; | |
4549 | } | |
4550 | ||
28cd9371 PW |
4551 | /* Completer for "info sources". */ |
4552 | ||
4553 | static void | |
4554 | info_sources_command_completer (cmd_list_element *ignore, | |
4555 | completion_tracker &tracker, | |
4556 | const char *text, const char *word) | |
4557 | { | |
4558 | const auto group = make_info_sources_options_def_group (nullptr); | |
4559 | if (gdb::option::complete_options | |
4560 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
4561 | return; | |
4562 | } | |
4563 | ||
0e350a05 AB |
4564 | /* See symtab.h. */ |
4565 | ||
4566 | void | |
4567 | info_sources_worker (struct ui_out *uiout, | |
1fb1ce02 | 4568 | bool group_by_objfile, |
0e350a05 AB |
4569 | const info_sources_filter &filter) |
4570 | { | |
4571 | output_source_filename_data data (uiout, filter); | |
4572 | ||
4573 | ui_out_emit_list results_emitter (uiout, "files"); | |
6b09f134 LS |
4574 | std::optional<ui_out_emit_tuple> output_tuple; |
4575 | std::optional<ui_out_emit_list> sources_list; | |
0e350a05 | 4576 | |
bd742128 | 4577 | gdb_assert (group_by_objfile || uiout->is_mi_like_p ()); |
0e350a05 AB |
4578 | |
4579 | for (objfile *objfile : current_program_space->objfiles ()) | |
4580 | { | |
1fb1ce02 AB |
4581 | if (group_by_objfile) |
4582 | { | |
4583 | output_tuple.emplace (uiout, nullptr); | |
972f7a4b TT |
4584 | uiout->field_string ("filename", objfile_name (objfile), |
4585 | file_name_style.style ()); | |
bd742128 | 4586 | uiout->text (":\n"); |
1fb1ce02 | 4587 | bool debug_fully_readin = !objfile->has_unexpanded_symtabs (); |
bd742128 | 4588 | if (uiout->is_mi_like_p ()) |
1fb1ce02 | 4589 | { |
bd742128 AB |
4590 | const char *debug_info_state; |
4591 | if (objfile_has_symbols (objfile)) | |
4592 | { | |
4593 | if (debug_fully_readin) | |
4594 | debug_info_state = "fully-read"; | |
4595 | else | |
4596 | debug_info_state = "partially-read"; | |
4597 | } | |
1fb1ce02 | 4598 | else |
bd742128 AB |
4599 | debug_info_state = "none"; |
4600 | current_uiout->field_string ("debug-info", debug_info_state); | |
1fb1ce02 AB |
4601 | } |
4602 | else | |
bd742128 AB |
4603 | { |
4604 | if (!debug_fully_readin) | |
4605 | uiout->text ("(Full debug information has not yet been read " | |
4606 | "for this file.)\n"); | |
4607 | if (!objfile_has_symbols (objfile)) | |
4608 | uiout->text ("(Objfile has no debug information.)\n"); | |
4609 | uiout->text ("\n"); | |
4610 | } | |
1fb1ce02 AB |
4611 | sources_list.emplace (uiout, "sources"); |
4612 | } | |
4613 | ||
0e350a05 AB |
4614 | for (compunit_symtab *cu : objfile->compunits ()) |
4615 | { | |
102cc235 | 4616 | for (symtab *s : cu->filetabs ()) |
0e350a05 AB |
4617 | { |
4618 | const char *file = symtab_to_filename_for_display (s); | |
4619 | const char *fullname = symtab_to_fullname (s); | |
4620 | data.output (file, fullname, true); | |
4621 | } | |
4622 | } | |
1fb1ce02 AB |
4623 | |
4624 | if (group_by_objfile) | |
4625 | { | |
4626 | objfile->map_symbol_filenames (data, true /* need_fullname */); | |
bd742128 AB |
4627 | if (data.printed_filename_p ()) |
4628 | uiout->text ("\n\n"); | |
1fb1ce02 AB |
4629 | data.reset_output (); |
4630 | sources_list.reset (); | |
4631 | output_tuple.reset (); | |
4632 | } | |
0e350a05 AB |
4633 | } |
4634 | ||
1fb1ce02 AB |
4635 | if (!group_by_objfile) |
4636 | { | |
1fb1ce02 AB |
4637 | data.reset_output (); |
4638 | map_symbol_filenames (data, true /*need_fullname*/); | |
1fb1ce02 | 4639 | } |
0e350a05 AB |
4640 | } |
4641 | ||
4a0788e0 AB |
4642 | /* Implement the 'info sources' command. */ |
4643 | ||
28cd9371 PW |
4644 | static void |
4645 | info_sources_command (const char *args, int from_tty) | |
c906108c | 4646 | { |
c906108c | 4647 | if (!have_full_symbols () && !have_partial_symbols ()) |
4a0788e0 | 4648 | error (_("No symbol table is loaded. Use the \"file\" command.")); |
28cd9371 | 4649 | |
4a0788e0 AB |
4650 | filename_partial_match_opts match_opts; |
4651 | auto group = make_info_sources_options_def_group (&match_opts); | |
28cd9371 PW |
4652 | gdb::option::process_options |
4653 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_ERROR, group); | |
9fdc877b | 4654 | |
4a0788e0 AB |
4655 | if (match_opts.dirname && match_opts.basename) |
4656 | error (_("You cannot give both -basename and -dirname to 'info sources'.")); | |
c906108c | 4657 | |
4a0788e0 | 4658 | const char *regex = nullptr; |
0e350a05 | 4659 | if (args != NULL && *args != '\000') |
4a0788e0 | 4660 | regex = args; |
28cd9371 | 4661 | |
4a0788e0 AB |
4662 | if ((match_opts.dirname || match_opts.basename) && regex == nullptr) |
4663 | error (_("Missing REGEXP for 'info sources'.")); | |
28cd9371 | 4664 | |
4a0788e0 AB |
4665 | info_sources_filter::match_on match_type; |
4666 | if (match_opts.dirname) | |
4667 | match_type = info_sources_filter::match_on::DIRNAME; | |
4668 | else if (match_opts.basename) | |
4669 | match_type = info_sources_filter::match_on::BASENAME; | |
28cd9371 | 4670 | else |
4a0788e0 AB |
4671 | match_type = info_sources_filter::match_on::FULLNAME; |
4672 | ||
4673 | info_sources_filter filter (match_type, regex); | |
bd742128 | 4674 | info_sources_worker (current_uiout, true, filter); |
c906108c SS |
4675 | } |
4676 | ||
470c0b1c AB |
4677 | /* Compare FILE against all the entries of FILENAMES. If BASENAMES is |
4678 | true compare only lbasename of FILENAMES. */ | |
fbd9ab74 | 4679 | |
470c0b1c AB |
4680 | static bool |
4681 | file_matches (const char *file, const std::vector<const char *> &filenames, | |
4682 | bool basenames) | |
c906108c | 4683 | { |
470c0b1c AB |
4684 | if (filenames.empty ()) |
4685 | return true; | |
c906108c | 4686 | |
470c0b1c | 4687 | for (const char *name : filenames) |
c906108c | 4688 | { |
470c0b1c AB |
4689 | name = (basenames ? lbasename (name) : name); |
4690 | if (compare_filenames_for_search (file, name)) | |
4691 | return true; | |
c906108c | 4692 | } |
470c0b1c AB |
4693 | |
4694 | return false; | |
c906108c SS |
4695 | } |
4696 | ||
f97a63c5 AB |
4697 | /* Helper function for std::sort on symbol_search objects. Can only sort |
4698 | symbols, not minimal symbols. */ | |
eca864fe | 4699 | |
b9c04fb2 TT |
4700 | int |
4701 | symbol_search::compare_search_syms (const symbol_search &sym_a, | |
4702 | const symbol_search &sym_b) | |
434d2d4f | 4703 | { |
b52109bc DE |
4704 | int c; |
4705 | ||
4206d69e TT |
4706 | c = FILENAME_CMP (sym_a.symbol->symtab ()->filename, |
4707 | sym_b.symbol->symtab ()->filename); | |
b52109bc DE |
4708 | if (c != 0) |
4709 | return c; | |
434d2d4f | 4710 | |
b9c04fb2 TT |
4711 | if (sym_a.block != sym_b.block) |
4712 | return sym_a.block - sym_b.block; | |
b52109bc | 4713 | |
987012b8 | 4714 | return strcmp (sym_a.symbol->print_name (), sym_b.symbol->print_name ()); |
434d2d4f DJ |
4715 | } |
4716 | ||
12615cba PW |
4717 | /* Returns true if the type_name of symbol_type of SYM matches TREG. |
4718 | If SYM has no symbol_type or symbol_name, returns false. */ | |
4719 | ||
4720 | bool | |
4721 | treg_matches_sym_type_name (const compiled_regex &treg, | |
4722 | const struct symbol *sym) | |
4723 | { | |
4724 | struct type *sym_type; | |
4725 | std::string printed_sym_type_name; | |
4726 | ||
b1e678d9 AB |
4727 | symbol_lookup_debug_printf_v ("treg_matches_sym_type_name, sym %s", |
4728 | sym->natural_name ()); | |
12615cba | 4729 | |
5f9c5a63 | 4730 | sym_type = sym->type (); |
12615cba PW |
4731 | if (sym_type == NULL) |
4732 | return false; | |
4733 | ||
43d397ca PW |
4734 | { |
4735 | scoped_switch_to_sym_language_if_auto l (sym); | |
12615cba | 4736 | |
12615cba | 4737 | printed_sym_type_name = type_to_string (sym_type); |
43d397ca PW |
4738 | } |
4739 | ||
b1e678d9 AB |
4740 | symbol_lookup_debug_printf_v ("sym_type_name %s", |
4741 | printed_sym_type_name.c_str ()); | |
12615cba PW |
4742 | |
4743 | if (printed_sym_type_name.empty ()) | |
4744 | return false; | |
4745 | ||
4746 | return treg.exec (printed_sym_type_name.c_str (), 0, NULL, 0) == 0; | |
4747 | } | |
4748 | ||
f97a63c5 AB |
4749 | /* See symtab.h. */ |
4750 | ||
4751 | bool | |
4752 | global_symbol_searcher::is_suitable_msymbol | |
c92d4de1 | 4753 | (const domain_search_flags kind, const minimal_symbol *msymbol) |
f97a63c5 | 4754 | { |
60f62e2b | 4755 | switch (msymbol->type ()) |
f97a63c5 AB |
4756 | { |
4757 | case mst_data: | |
4758 | case mst_bss: | |
4759 | case mst_file_data: | |
4760 | case mst_file_bss: | |
c92d4de1 | 4761 | return (kind & SEARCH_VAR_DOMAIN) != 0; |
f97a63c5 AB |
4762 | case mst_text: |
4763 | case mst_file_text: | |
4764 | case mst_solib_trampoline: | |
4765 | case mst_text_gnu_ifunc: | |
c92d4de1 | 4766 | return (kind & SEARCH_FUNCTION_DOMAIN) != 0; |
f97a63c5 AB |
4767 | default: |
4768 | return false; | |
4769 | } | |
4770 | } | |
4771 | ||
4772 | /* See symtab.h. */ | |
4773 | ||
4774 | bool | |
4775 | global_symbol_searcher::expand_symtabs | |
6b09f134 | 4776 | (objfile *objfile, const std::optional<compiled_regex> &preg) const |
f97a63c5 | 4777 | { |
c92d4de1 | 4778 | domain_search_flags kind = m_kind; |
f97a63c5 AB |
4779 | bool found_msymbol = false; |
4780 | ||
c5a9fcdf TT |
4781 | auto do_file_match = [&] (const char *filename, bool basenames) |
4782 | { | |
4783 | return file_matches (filename, filenames, basenames); | |
4784 | }; | |
4785 | gdb::function_view<expand_symtabs_file_matcher_ftype> file_matcher = nullptr; | |
4786 | if (!filenames.empty ()) | |
4787 | file_matcher = do_file_match; | |
4788 | ||
4d080b46 | 4789 | objfile->expand_symtabs_matching |
c5a9fcdf | 4790 | (file_matcher, |
4d080b46 TT |
4791 | &lookup_name_info::match_any (), |
4792 | [&] (const char *symname) | |
4793 | { | |
4794 | return (!preg.has_value () | |
4795 | || preg->exec (symname, 0, NULL, 0) == 0); | |
4796 | }, | |
4797 | NULL, | |
03a8ea51 | 4798 | SEARCH_GLOBAL_BLOCK | SEARCH_STATIC_BLOCK, |
4d080b46 | 4799 | kind); |
f97a63c5 AB |
4800 | |
4801 | /* Here, we search through the minimal symbol tables for functions and | |
4802 | variables that match, and force their symbols to be read. This is in | |
4803 | particular necessary for demangled variable names, which are no longer | |
4804 | put into the partial symbol tables. The symbol will then be found | |
4805 | during the scan of symtabs later. | |
4806 | ||
4807 | For functions, find_pc_symtab should succeed if we have debug info for | |
4808 | the function, for variables we have to call | |
4809 | lookup_symbol_in_objfile_from_linkage_name to determine if the | |
4810 | variable has debug info. If the lookup fails, set found_msymbol so | |
4811 | that we will rescan to print any matching symbols without debug info. | |
4812 | We only search the objfile the msymbol came from, we no longer search | |
4813 | all objfiles. In large programs (1000s of shared libs) searching all | |
4814 | objfiles is not worth the pain. */ | |
4815 | if (filenames.empty () | |
c92d4de1 | 4816 | && (kind & (SEARCH_VAR_DOMAIN | SEARCH_FUNCTION_DOMAIN)) != 0) |
f97a63c5 AB |
4817 | { |
4818 | for (minimal_symbol *msymbol : objfile->msymbols ()) | |
4819 | { | |
4820 | QUIT; | |
4821 | ||
4822 | if (msymbol->created_by_gdb) | |
4823 | continue; | |
4824 | ||
4825 | if (is_suitable_msymbol (kind, msymbol)) | |
4826 | { | |
4827 | if (!preg.has_value () | |
4828 | || preg->exec (msymbol->natural_name (), 0, | |
4829 | NULL, 0) == 0) | |
4830 | { | |
4831 | /* An important side-effect of these lookup functions is | |
4832 | to expand the symbol table if msymbol is found, later | |
4833 | in the process we will add matching symbols or | |
4834 | msymbols to the results list, and that requires that | |
4835 | the symbols tables are expanded. */ | |
c92d4de1 | 4836 | if ((kind & SEARCH_FUNCTION_DOMAIN) != 0 |
f97a63c5 | 4837 | ? (find_pc_compunit_symtab |
4aeddc50 | 4838 | (msymbol->value_address (objfile)) == NULL) |
f97a63c5 AB |
4839 | : (lookup_symbol_in_objfile_from_linkage_name |
4840 | (objfile, msymbol->linkage_name (), | |
ccf41c24 | 4841 | SEARCH_VFT) |
f97a63c5 AB |
4842 | .symbol == NULL)) |
4843 | found_msymbol = true; | |
4844 | } | |
4845 | } | |
4846 | } | |
4847 | } | |
4848 | ||
4849 | return found_msymbol; | |
4850 | } | |
4851 | ||
4852 | /* See symtab.h. */ | |
4853 | ||
c2512106 | 4854 | bool |
f97a63c5 AB |
4855 | global_symbol_searcher::add_matching_symbols |
4856 | (objfile *objfile, | |
6b09f134 LS |
4857 | const std::optional<compiled_regex> &preg, |
4858 | const std::optional<compiled_regex> &treg, | |
c2512106 | 4859 | std::set<symbol_search> *result_set) const |
f97a63c5 | 4860 | { |
c92d4de1 | 4861 | domain_search_flags kind = m_kind; |
f97a63c5 AB |
4862 | |
4863 | /* Add matching symbols (if not already present). */ | |
4864 | for (compunit_symtab *cust : objfile->compunits ()) | |
4865 | { | |
af39c5c8 | 4866 | const struct blockvector *bv = cust->blockvector (); |
f97a63c5 AB |
4867 | |
4868 | for (block_enum block : { GLOBAL_BLOCK, STATIC_BLOCK }) | |
4869 | { | |
63d609de | 4870 | const struct block *b = bv->block (block); |
f97a63c5 | 4871 | |
548a89df | 4872 | for (struct symbol *sym : block_iterator_range (b)) |
f97a63c5 | 4873 | { |
4206d69e | 4874 | struct symtab *real_symtab = sym->symtab (); |
f97a63c5 AB |
4875 | |
4876 | QUIT; | |
4877 | ||
4878 | /* Check first sole REAL_SYMTAB->FILENAME. It does | |
4879 | not need to be a substring of symtab_to_fullname as | |
4880 | it may contain "./" etc. */ | |
d4f48c1e TT |
4881 | if (!(file_matches (real_symtab->filename, filenames, false) |
4882 | || ((basenames_may_differ | |
4883 | || file_matches (lbasename (real_symtab->filename), | |
4884 | filenames, true)) | |
4885 | && file_matches (symtab_to_fullname (real_symtab), | |
4886 | filenames, false)))) | |
4887 | continue; | |
4888 | ||
974b36c2 TT |
4889 | if (!sym->matches (kind)) |
4890 | continue; | |
4891 | ||
d4f48c1e TT |
4892 | if (preg.has_value () && !preg->exec (sym->natural_name (), 0, |
4893 | nullptr, 0) == 0) | |
4894 | continue; | |
4895 | ||
974b36c2 TT |
4896 | if (((sym->domain () == VAR_DOMAIN |
4897 | || sym->domain () == FUNCTION_DOMAIN) | |
4898 | && treg.has_value () | |
4899 | && !treg_matches_sym_type_name (*treg, sym))) | |
4900 | continue; | |
4901 | ||
4902 | if ((kind & SEARCH_VAR_DOMAIN) != 0) | |
d4f48c1e | 4903 | { |
974b36c2 | 4904 | if (sym->aclass () == LOC_UNRESOLVED |
d4f48c1e TT |
4905 | /* LOC_CONST can be used for more than |
4906 | just enums, e.g., c++ static const | |
4907 | members. We only want to skip enums | |
4908 | here. */ | |
974b36c2 TT |
4909 | || (sym->aclass () == LOC_CONST |
4910 | && (sym->type ()->code () == TYPE_CODE_ENUM))) | |
4911 | continue; | |
d4f48c1e | 4912 | } |
974b36c2 TT |
4913 | if (sym->domain () == MODULE_DOMAIN && sym->line () == 0) |
4914 | continue; | |
4915 | ||
4916 | if (result_set->size () < m_max_search_results) | |
f97a63c5 | 4917 | { |
974b36c2 TT |
4918 | /* Match, insert if not already in the results. */ |
4919 | symbol_search ss (block, sym); | |
4920 | if (result_set->find (ss) == result_set->end ()) | |
4921 | result_set->insert (ss); | |
f97a63c5 | 4922 | } |
974b36c2 TT |
4923 | else |
4924 | return false; | |
f97a63c5 AB |
4925 | } |
4926 | } | |
4927 | } | |
c2512106 AB |
4928 | |
4929 | return true; | |
f97a63c5 AB |
4930 | } |
4931 | ||
4932 | /* See symtab.h. */ | |
4933 | ||
c2512106 | 4934 | bool |
f97a63c5 | 4935 | global_symbol_searcher::add_matching_msymbols |
6b09f134 | 4936 | (objfile *objfile, const std::optional<compiled_regex> &preg, |
f97a63c5 AB |
4937 | std::vector<symbol_search> *results) const |
4938 | { | |
c92d4de1 | 4939 | domain_search_flags kind = m_kind; |
f97a63c5 AB |
4940 | |
4941 | for (minimal_symbol *msymbol : objfile->msymbols ()) | |
4942 | { | |
4943 | QUIT; | |
4944 | ||
4945 | if (msymbol->created_by_gdb) | |
4946 | continue; | |
4947 | ||
4948 | if (is_suitable_msymbol (kind, msymbol)) | |
4949 | { | |
4950 | if (!preg.has_value () | |
4951 | || preg->exec (msymbol->natural_name (), 0, | |
4952 | NULL, 0) == 0) | |
4953 | { | |
4954 | /* For functions we can do a quick check of whether the | |
4955 | symbol might be found via find_pc_symtab. */ | |
c92d4de1 | 4956 | if ((kind & SEARCH_FUNCTION_DOMAIN) == 0 |
f97a63c5 | 4957 | || (find_pc_compunit_symtab |
4aeddc50 | 4958 | (msymbol->value_address (objfile)) == NULL)) |
f97a63c5 AB |
4959 | { |
4960 | if (lookup_symbol_in_objfile_from_linkage_name | |
4961 | (objfile, msymbol->linkage_name (), | |
ccf41c24 | 4962 | SEARCH_VFT).symbol == NULL) |
f97a63c5 AB |
4963 | { |
4964 | /* Matching msymbol, add it to the results list. */ | |
c2512106 AB |
4965 | if (results->size () < m_max_search_results) |
4966 | results->emplace_back (GLOBAL_BLOCK, msymbol, objfile); | |
4967 | else | |
4968 | return false; | |
f97a63c5 AB |
4969 | } |
4970 | } | |
4971 | } | |
4972 | } | |
4973 | } | |
12615cba | 4974 | |
c2512106 | 4975 | return true; |
434d2d4f | 4976 | } |
5bd98722 | 4977 | |
470c0b1c | 4978 | /* See symtab.h. */ |
c378eb4e | 4979 | |
b9c04fb2 | 4980 | std::vector<symbol_search> |
470c0b1c | 4981 | global_symbol_searcher::search () const |
c906108c | 4982 | { |
6b09f134 LS |
4983 | std::optional<compiled_regex> preg; |
4984 | std::optional<compiled_regex> treg; | |
c906108c | 4985 | |
470c0b1c | 4986 | if (m_symbol_name_regexp != NULL) |
c906108c | 4987 | { |
470c0b1c | 4988 | const char *symbol_name_regexp = m_symbol_name_regexp; |
9c48a8e6 | 4989 | std::string symbol_name_regexp_holder; |
470c0b1c | 4990 | |
c906108c | 4991 | /* Make sure spacing is right for C++ operators. |
dda83cd7 SM |
4992 | This is just a courtesy to make the matching less sensitive |
4993 | to how many spaces the user leaves between 'operator' | |
4994 | and <TYPENAME> or <OPERATOR>. */ | |
96142726 | 4995 | const char *opend; |
470c0b1c | 4996 | const char *opname = operator_chars (symbol_name_regexp, &opend); |
433759f7 | 4997 | |
c906108c | 4998 | if (*opname) |
c5aa993b | 4999 | { |
3e43a32a | 5000 | int fix = -1; /* -1 means ok; otherwise number of |
dda83cd7 | 5001 | spaces needed. */ |
433759f7 | 5002 | |
c5aa993b JM |
5003 | if (isalpha (*opname) || *opname == '_' || *opname == '$') |
5004 | { | |
c378eb4e | 5005 | /* There should 1 space between 'operator' and 'TYPENAME'. */ |
c5aa993b JM |
5006 | if (opname[-1] != ' ' || opname[-2] == ' ') |
5007 | fix = 1; | |
5008 | } | |
5009 | else | |
5010 | { | |
c378eb4e | 5011 | /* There should 0 spaces between 'operator' and 'OPERATOR'. */ |
c5aa993b JM |
5012 | if (opname[-1] == ' ') |
5013 | fix = 0; | |
5014 | } | |
c378eb4e | 5015 | /* If wrong number of spaces, fix it. */ |
c5aa993b JM |
5016 | if (fix >= 0) |
5017 | { | |
9c48a8e6 SM |
5018 | symbol_name_regexp_holder |
5019 | = string_printf ("operator%.*s%s", fix, " ", opname); | |
5020 | symbol_name_regexp = symbol_name_regexp_holder.c_str (); | |
c5aa993b JM |
5021 | } |
5022 | } | |
5023 | ||
2d7cc5c7 PA |
5024 | int cflags = REG_NOSUB | (case_sensitivity == case_sensitive_off |
5025 | ? REG_ICASE : 0); | |
470c0b1c AB |
5026 | preg.emplace (symbol_name_regexp, cflags, |
5027 | _("Invalid regexp")); | |
c906108c SS |
5028 | } |
5029 | ||
470c0b1c | 5030 | if (m_symbol_type_regexp != NULL) |
12615cba PW |
5031 | { |
5032 | int cflags = REG_NOSUB | (case_sensitivity == case_sensitive_off | |
5033 | ? REG_ICASE : 0); | |
470c0b1c AB |
5034 | treg.emplace (m_symbol_type_regexp, cflags, |
5035 | _("Invalid regexp")); | |
12615cba PW |
5036 | } |
5037 | ||
f97a63c5 | 5038 | bool found_msymbol = false; |
c2512106 | 5039 | std::set<symbol_search> result_set; |
2030c079 | 5040 | for (objfile *objfile : current_program_space->objfiles ()) |
d8aeb77f | 5041 | { |
f97a63c5 AB |
5042 | /* Expand symtabs within objfile that possibly contain matching |
5043 | symbols. */ | |
5044 | found_msymbol |= expand_symtabs (objfile, preg); | |
5045 | ||
c2512106 AB |
5046 | /* Find matching symbols within OBJFILE and add them in to the |
5047 | RESULT_SET set. Use a set here so that we can easily detect | |
5048 | duplicates as we go, and can therefore track how many unique | |
5049 | matches we have found so far. */ | |
5050 | if (!add_matching_symbols (objfile, preg, treg, &result_set)) | |
5051 | break; | |
d8aeb77f | 5052 | } |
c906108c | 5053 | |
c2512106 AB |
5054 | /* Convert the result set into a sorted result list, as std::set is |
5055 | defined to be sorted then no explicit call to std::sort is needed. */ | |
5056 | std::vector<symbol_search> result (result_set.begin (), result_set.end ()); | |
b52109bc | 5057 | |
470c0b1c | 5058 | /* If there are no debug symbols, then add matching minsyms. But if the |
f97a63c5 AB |
5059 | user wants to see symbols matching a type regexp, then never give a |
5060 | minimal symbol, as we assume that a minimal symbol does not have a | |
5061 | type. */ | |
c92d4de1 TT |
5062 | if ((found_msymbol |
5063 | || (filenames.empty () && (m_kind & SEARCH_VAR_DOMAIN) != 0)) | |
470c0b1c | 5064 | && !m_exclude_minsyms |
a8462bbf | 5065 | && !treg.has_value ()) |
c906108c | 5066 | { |
c92d4de1 TT |
5067 | gdb_assert ((m_kind & (SEARCH_VAR_DOMAIN | SEARCH_FUNCTION_DOMAIN)) |
5068 | != 0); | |
2030c079 | 5069 | for (objfile *objfile : current_program_space->objfiles ()) |
c2512106 AB |
5070 | if (!add_matching_msymbols (objfile, preg, &result)) |
5071 | break; | |
c906108c SS |
5072 | } |
5073 | ||
b9c04fb2 | 5074 | return result; |
c906108c SS |
5075 | } |
5076 | ||
5f512a7d | 5077 | /* See symtab.h. */ |
c378eb4e | 5078 | |
5f512a7d | 5079 | std::string |
d4bf9040 | 5080 | symbol_to_info_string (struct symbol *sym, int block) |
c906108c | 5081 | { |
5f512a7d | 5082 | std::string str; |
05cba821 | 5083 | |
5f512a7d | 5084 | gdb_assert (block == GLOBAL_BLOCK || block == STATIC_BLOCK); |
b744723f | 5085 | |
d4bf9040 | 5086 | if (block == STATIC_BLOCK |
974b36c2 TT |
5087 | && (sym->domain () == VAR_DOMAIN |
5088 | || sym->domain () == FUNCTION_DOMAIN)) | |
5f512a7d | 5089 | str += "static "; |
c5aa993b | 5090 | |
c378eb4e | 5091 | /* Typedef that is not a C++ class. */ |
974b36c2 | 5092 | if (sym->domain () == TYPE_DOMAIN) |
eb86c5e2 | 5093 | { |
5f512a7d AB |
5094 | string_file tmp_stream; |
5095 | ||
eb86c5e2 AB |
5096 | /* FIXME: For C (and C++) we end up with a difference in output here |
5097 | between how a typedef is printed, and non-typedefs are printed. | |
5098 | The TYPEDEF_PRINT code places a ";" at the end in an attempt to | |
5099 | appear C-like, while TYPE_PRINT doesn't. | |
5100 | ||
5101 | For the struct printing case below, things are worse, we force | |
5102 | printing of the ";" in this function, which is going to be wrong | |
5103 | for languages that don't require a ";" between statements. */ | |
5f9c5a63 SM |
5104 | if (sym->type ()->code () == TYPE_CODE_TYPEDEF) |
5105 | typedef_print (sym->type (), sym, &tmp_stream); | |
eb86c5e2 | 5106 | else |
5f9c5a63 | 5107 | type_print (sym->type (), "", &tmp_stream, -1); |
5f512a7d | 5108 | str += tmp_stream.string (); |
eb86c5e2 | 5109 | } |
c378eb4e | 5110 | /* variable, func, or typedef-that-is-c++-class. */ |
974b36c2 TT |
5111 | else if (sym->domain () == VAR_DOMAIN || sym->domain () == STRUCT_DOMAIN |
5112 | || sym->domain () == FUNCTION_DOMAIN) | |
c906108c | 5113 | { |
5f512a7d AB |
5114 | string_file tmp_stream; |
5115 | ||
5f9c5a63 | 5116 | type_print (sym->type (), |
66d7f48f | 5117 | (sym->aclass () == LOC_TYPEDEF |
987012b8 | 5118 | ? "" : sym->print_name ()), |
5f512a7d | 5119 | &tmp_stream, 0); |
c906108c | 5120 | |
5f512a7d AB |
5121 | str += tmp_stream.string (); |
5122 | str += ";"; | |
c906108c | 5123 | } |
59c35742 AB |
5124 | /* Printing of modules is currently done here, maybe at some future |
5125 | point we might want a language specific method to print the module | |
5126 | symbol so that we can customise the output more. */ | |
d4bf9040 | 5127 | else if (sym->domain () == MODULE_DOMAIN) |
5f512a7d AB |
5128 | str += sym->print_name (); |
5129 | ||
5130 | return str; | |
5131 | } | |
5132 | ||
d4bf9040 TT |
5133 | /* Helper function for symbol info commands, for example 'info |
5134 | functions', 'info variables', etc. BLOCK is the type of block the | |
5135 | symbols was found in, either GLOBAL_BLOCK or STATIC_BLOCK. SYM is | |
5136 | the symbol we found. If LAST is not NULL, print file and line | |
5137 | number information for the symbol as well. Skip printing the | |
5138 | filename if it matches LAST. */ | |
5f512a7d AB |
5139 | |
5140 | static void | |
d4bf9040 | 5141 | print_symbol_info (struct symbol *sym, int block, const char *last) |
5f512a7d AB |
5142 | { |
5143 | scoped_switch_to_sym_language_if_auto l (sym); | |
4206d69e | 5144 | struct symtab *s = sym->symtab (); |
5f512a7d AB |
5145 | |
5146 | if (last != NULL) | |
5147 | { | |
5148 | const char *s_filename = symtab_to_filename_for_display (s); | |
5149 | ||
5150 | if (filename_cmp (last, s_filename) != 0) | |
5151 | { | |
6cb06a8c TT |
5152 | gdb_printf (_("\nFile %ps:\n"), |
5153 | styled_string (file_name_style.style (), | |
5154 | s_filename)); | |
5f512a7d AB |
5155 | } |
5156 | ||
5d0027b9 | 5157 | if (sym->line () != 0) |
6cb06a8c | 5158 | gdb_printf ("%d:\t", sym->line ()); |
5f512a7d | 5159 | else |
0426ad51 | 5160 | gdb_puts ("\t"); |
5f512a7d AB |
5161 | } |
5162 | ||
d4bf9040 | 5163 | std::string str = symbol_to_info_string (sym, block); |
6cb06a8c | 5164 | gdb_printf ("%s\n", str.c_str ()); |
c906108c SS |
5165 | } |
5166 | ||
5167 | /* This help function for symtab_symbol_info() prints information | |
c378eb4e MS |
5168 | for non-debugging symbols to gdb_stdout. */ |
5169 | ||
c906108c | 5170 | static void |
7c7b6655 | 5171 | print_msymbol_info (struct bound_minimal_symbol msymbol) |
c906108c | 5172 | { |
08feed99 | 5173 | struct gdbarch *gdbarch = msymbol.objfile->arch (); |
3ac4495a MS |
5174 | char *tmp; |
5175 | ||
d80b854b | 5176 | if (gdbarch_addr_bit (gdbarch) <= 32) |
4aeddc50 | 5177 | tmp = hex_string_custom (msymbol.value_address () |
bb599908 PH |
5178 | & (CORE_ADDR) 0xffffffff, |
5179 | 8); | |
3ac4495a | 5180 | else |
4aeddc50 | 5181 | tmp = hex_string_custom (msymbol.value_address (), |
bb599908 | 5182 | 16); |
6a831f06 PA |
5183 | |
5184 | ui_file_style sym_style = (msymbol.minsym->text_p () | |
5185 | ? function_name_style.style () | |
5186 | : ui_file_style ()); | |
5187 | ||
6cb06a8c TT |
5188 | gdb_printf (_("%ps %ps\n"), |
5189 | styled_string (address_style.style (), tmp), | |
5190 | styled_string (sym_style, msymbol.minsym->print_name ())); | |
c906108c SS |
5191 | } |
5192 | ||
5193 | /* This is the guts of the commands "info functions", "info types", and | |
c378eb4e | 5194 | "info variables". It calls search_symbols to find all matches and then |
c906108c | 5195 | print_[m]symbol_info to print out some useful information about the |
c378eb4e MS |
5196 | matches. */ |
5197 | ||
c906108c | 5198 | static void |
4acfdd20 | 5199 | symtab_symbol_info (bool quiet, bool exclude_minsyms, |
c92d4de1 | 5200 | const char *regexp, domain_enum kind, |
12615cba | 5201 | const char *t_regexp, int from_tty) |
c906108c | 5202 | { |
c7dcbf88 | 5203 | const char *last_filename = ""; |
c906108c SS |
5204 | int first = 1; |
5205 | ||
b16507e0 AB |
5206 | if (regexp != nullptr && *regexp == '\0') |
5207 | regexp = nullptr; | |
5208 | ||
c92d4de1 TT |
5209 | domain_search_flags flags = to_search_flags (kind); |
5210 | if (kind == TYPE_DOMAIN) | |
5211 | flags |= SEARCH_STRUCT_DOMAIN; | |
5212 | ||
5213 | global_symbol_searcher spec (flags, regexp); | |
470c0b1c AB |
5214 | spec.set_symbol_type_regexp (t_regexp); |
5215 | spec.set_exclude_minsyms (exclude_minsyms); | |
5216 | std::vector<symbol_search> symbols = spec.search (); | |
c906108c | 5217 | |
12615cba PW |
5218 | if (!quiet) |
5219 | { | |
c92d4de1 TT |
5220 | const char *classname; |
5221 | switch (kind) | |
5222 | { | |
5223 | case VAR_DOMAIN: | |
5224 | classname = "variable"; | |
5225 | break; | |
5226 | case FUNCTION_DOMAIN: | |
5227 | classname = "function"; | |
5228 | break; | |
5229 | case TYPE_DOMAIN: | |
5230 | classname = "type"; | |
5231 | break; | |
5232 | case MODULE_DOMAIN: | |
5233 | classname = "module"; | |
5234 | break; | |
5235 | default: | |
5236 | gdb_assert_not_reached ("invalid domain enum"); | |
5237 | } | |
5238 | ||
12615cba PW |
5239 | if (regexp != NULL) |
5240 | { | |
5241 | if (t_regexp != NULL) | |
6cb06a8c | 5242 | gdb_printf |
12615cba | 5243 | (_("All %ss matching regular expression \"%s\"" |
0c95f9ed | 5244 | " with type matching regular expression \"%s\":\n"), |
c92d4de1 | 5245 | classname, regexp, t_regexp); |
12615cba | 5246 | else |
6cb06a8c | 5247 | gdb_printf (_("All %ss matching regular expression \"%s\":\n"), |
c92d4de1 | 5248 | classname, regexp); |
12615cba PW |
5249 | } |
5250 | else | |
5251 | { | |
5252 | if (t_regexp != NULL) | |
6cb06a8c | 5253 | gdb_printf |
12615cba | 5254 | (_("All defined %ss" |
0c95f9ed | 5255 | " with type matching regular expression \"%s\" :\n"), |
c92d4de1 | 5256 | classname, t_regexp); |
12615cba | 5257 | else |
c92d4de1 | 5258 | gdb_printf (_("All defined %ss:\n"), classname); |
12615cba PW |
5259 | } |
5260 | } | |
c906108c | 5261 | |
b9c04fb2 | 5262 | for (const symbol_search &p : symbols) |
c906108c SS |
5263 | { |
5264 | QUIT; | |
5265 | ||
b9c04fb2 | 5266 | if (p.msymbol.minsym != NULL) |
c5aa993b JM |
5267 | { |
5268 | if (first) | |
5269 | { | |
12615cba | 5270 | if (!quiet) |
6cb06a8c | 5271 | gdb_printf (_("\nNon-debugging symbols:\n")); |
c5aa993b JM |
5272 | first = 0; |
5273 | } | |
b9c04fb2 | 5274 | print_msymbol_info (p.msymbol); |
c5aa993b | 5275 | } |
c906108c | 5276 | else |
c5aa993b | 5277 | { |
d4bf9040 | 5278 | print_symbol_info (p.symbol, p.block, last_filename); |
d01060f0 | 5279 | last_filename |
4206d69e | 5280 | = symtab_to_filename_for_display (p.symbol->symtab ()); |
c5aa993b | 5281 | } |
c906108c | 5282 | } |
c906108c SS |
5283 | } |
5284 | ||
4acfdd20 AB |
5285 | /* Structure to hold the values of the options used by the 'info variables' |
5286 | and 'info functions' commands. These correspond to the -q, -t, and -n | |
5287 | options. */ | |
5288 | ||
095252be | 5289 | struct info_vars_funcs_options |
4acfdd20 | 5290 | { |
491144b5 CB |
5291 | bool quiet = false; |
5292 | bool exclude_minsyms = false; | |
e0700ba4 | 5293 | std::string type_regexp; |
4acfdd20 AB |
5294 | }; |
5295 | ||
5296 | /* The options used by the 'info variables' and 'info functions' | |
5297 | commands. */ | |
5298 | ||
095252be AT |
5299 | static const gdb::option::option_def info_vars_funcs_options_defs[] = { |
5300 | gdb::option::boolean_option_def<info_vars_funcs_options> { | |
4acfdd20 | 5301 | "q", |
095252be | 5302 | [] (info_vars_funcs_options *opt) { return &opt->quiet; }, |
4acfdd20 AB |
5303 | nullptr, /* show_cmd_cb */ |
5304 | nullptr /* set_doc */ | |
5305 | }, | |
5306 | ||
095252be | 5307 | gdb::option::boolean_option_def<info_vars_funcs_options> { |
4acfdd20 | 5308 | "n", |
095252be | 5309 | [] (info_vars_funcs_options *opt) { return &opt->exclude_minsyms; }, |
4acfdd20 AB |
5310 | nullptr, /* show_cmd_cb */ |
5311 | nullptr /* set_doc */ | |
5312 | }, | |
5313 | ||
095252be | 5314 | gdb::option::string_option_def<info_vars_funcs_options> { |
4acfdd20 | 5315 | "t", |
e0700ba4 | 5316 | [] (info_vars_funcs_options *opt) { return &opt->type_regexp; }, |
4acfdd20 AB |
5317 | nullptr, /* show_cmd_cb */ |
5318 | nullptr /* set_doc */ | |
5319 | } | |
5320 | }; | |
5321 | ||
5322 | /* Returns the option group used by 'info variables' and 'info | |
5323 | functions'. */ | |
5324 | ||
5325 | static gdb::option::option_def_group | |
095252be | 5326 | make_info_vars_funcs_options_def_group (info_vars_funcs_options *opts) |
4acfdd20 | 5327 | { |
095252be | 5328 | return {{info_vars_funcs_options_defs}, opts}; |
4acfdd20 AB |
5329 | } |
5330 | ||
5331 | /* Command completer for 'info variables' and 'info functions'. */ | |
5332 | ||
5333 | static void | |
095252be AT |
5334 | info_vars_funcs_command_completer (struct cmd_list_element *ignore, |
5335 | completion_tracker &tracker, | |
5336 | const char *text, const char * /* word */) | |
4acfdd20 AB |
5337 | { |
5338 | const auto group | |
095252be | 5339 | = make_info_vars_funcs_options_def_group (nullptr); |
4acfdd20 AB |
5340 | if (gdb::option::complete_options |
5341 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
5342 | return; | |
5343 | ||
5344 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
5345 | symbol_completer (ignore, tracker, text, word); | |
5346 | } | |
5347 | ||
b16507e0 AB |
5348 | /* Implement the 'info variables' command. */ |
5349 | ||
0b39b52e | 5350 | static void |
12615cba | 5351 | info_variables_command (const char *args, int from_tty) |
0b39b52e | 5352 | { |
095252be AT |
5353 | info_vars_funcs_options opts; |
5354 | auto grp = make_info_vars_funcs_options_def_group (&opts); | |
4acfdd20 AB |
5355 | gdb::option::process_options |
5356 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5357 | if (args != nullptr && *args == '\0') | |
5358 | args = nullptr; | |
b16507e0 | 5359 | |
e0700ba4 | 5360 | symtab_symbol_info |
c92d4de1 | 5361 | (opts.quiet, opts.exclude_minsyms, args, VAR_DOMAIN, |
e0700ba4 SM |
5362 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), |
5363 | from_tty); | |
0b39b52e TT |
5364 | } |
5365 | ||
b16507e0 | 5366 | /* Implement the 'info functions' command. */ |
12615cba | 5367 | |
c906108c | 5368 | static void |
12615cba | 5369 | info_functions_command (const char *args, int from_tty) |
c906108c | 5370 | { |
095252be AT |
5371 | info_vars_funcs_options opts; |
5372 | ||
5373 | auto grp = make_info_vars_funcs_options_def_group (&opts); | |
4acfdd20 AB |
5374 | gdb::option::process_options |
5375 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5376 | if (args != nullptr && *args == '\0') | |
5377 | args = nullptr; | |
b16507e0 | 5378 | |
e0700ba4 | 5379 | symtab_symbol_info |
c92d4de1 | 5380 | (opts.quiet, opts.exclude_minsyms, args, FUNCTION_DOMAIN, |
e0700ba4 SM |
5381 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), |
5382 | from_tty); | |
c906108c SS |
5383 | } |
5384 | ||
a8eab7c6 AB |
5385 | /* Holds the -q option for the 'info types' command. */ |
5386 | ||
5387 | struct info_types_options | |
5388 | { | |
491144b5 | 5389 | bool quiet = false; |
a8eab7c6 AB |
5390 | }; |
5391 | ||
5392 | /* The options used by the 'info types' command. */ | |
5393 | ||
5394 | static const gdb::option::option_def info_types_options_defs[] = { | |
5395 | gdb::option::boolean_option_def<info_types_options> { | |
5396 | "q", | |
5397 | [] (info_types_options *opt) { return &opt->quiet; }, | |
5398 | nullptr, /* show_cmd_cb */ | |
5399 | nullptr /* set_doc */ | |
5400 | } | |
5401 | }; | |
5402 | ||
5403 | /* Returns the option group used by 'info types'. */ | |
5404 | ||
5405 | static gdb::option::option_def_group | |
5406 | make_info_types_options_def_group (info_types_options *opts) | |
5407 | { | |
5408 | return {{info_types_options_defs}, opts}; | |
5409 | } | |
5410 | ||
5411 | /* Implement the 'info types' command. */ | |
357e46e7 | 5412 | |
c906108c | 5413 | static void |
a8eab7c6 | 5414 | info_types_command (const char *args, int from_tty) |
c906108c | 5415 | { |
a8eab7c6 AB |
5416 | info_types_options opts; |
5417 | ||
5418 | auto grp = make_info_types_options_def_group (&opts); | |
5419 | gdb::option::process_options | |
5420 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5421 | if (args != nullptr && *args == '\0') | |
5422 | args = nullptr; | |
c92d4de1 TT |
5423 | symtab_symbol_info (opts.quiet, false, args, TYPE_DOMAIN, nullptr, |
5424 | from_tty); | |
a8eab7c6 AB |
5425 | } |
5426 | ||
5427 | /* Command completer for 'info types' command. */ | |
5428 | ||
5429 | static void | |
5430 | info_types_command_completer (struct cmd_list_element *ignore, | |
5431 | completion_tracker &tracker, | |
5432 | const char *text, const char * /* word */) | |
5433 | { | |
5434 | const auto group | |
5435 | = make_info_types_options_def_group (nullptr); | |
5436 | if (gdb::option::complete_options | |
5437 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
5438 | return; | |
5439 | ||
5440 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
5441 | symbol_completer (ignore, tracker, text, word); | |
c906108c SS |
5442 | } |
5443 | ||
59c35742 AB |
5444 | /* Implement the 'info modules' command. */ |
5445 | ||
5446 | static void | |
5447 | info_modules_command (const char *args, int from_tty) | |
5448 | { | |
5449 | info_types_options opts; | |
5450 | ||
5451 | auto grp = make_info_types_options_def_group (&opts); | |
5452 | gdb::option::process_options | |
5453 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5454 | if (args != nullptr && *args == '\0') | |
5455 | args = nullptr; | |
c92d4de1 | 5456 | symtab_symbol_info (opts.quiet, true, args, MODULE_DOMAIN, nullptr, |
59c35742 AB |
5457 | from_tty); |
5458 | } | |
5459 | ||
03d83cd5 RB |
5460 | /* Implement the 'info main' command. */ |
5461 | ||
5462 | static void | |
5463 | info_main_command (const char *args, int from_tty) | |
5464 | { | |
5465 | gdb_printf ("%s\n", main_name ()); | |
5466 | } | |
5467 | ||
c906108c | 5468 | static void |
0b39b52e | 5469 | rbreak_command (const char *regexp, int from_tty) |
c906108c | 5470 | { |
c80049d3 | 5471 | std::string string; |
470c0b1c | 5472 | const char *file_name = nullptr; |
c906108c | 5473 | |
470c0b1c | 5474 | if (regexp != nullptr) |
8bd10a10 | 5475 | { |
0b39b52e | 5476 | const char *colon = strchr (regexp, ':'); |
433759f7 | 5477 | |
2c074f49 HD |
5478 | /* Ignore the colon if it is part of a Windows drive. */ |
5479 | if (HAS_DRIVE_SPEC (regexp) | |
5480 | && (regexp[2] == '/' || regexp[2] == '\\')) | |
5481 | colon = strchr (STRIP_DRIVE_SPEC (regexp), ':'); | |
5482 | ||
8bd10a10 CM |
5483 | if (colon && *(colon + 1) != ':') |
5484 | { | |
5485 | int colon_index; | |
96142726 | 5486 | char *local_name; |
8bd10a10 CM |
5487 | |
5488 | colon_index = colon - regexp; | |
224c3ddb | 5489 | local_name = (char *) alloca (colon_index + 1); |
96142726 TT |
5490 | memcpy (local_name, regexp, colon_index); |
5491 | local_name[colon_index--] = 0; | |
5492 | while (isspace (local_name[colon_index])) | |
5493 | local_name[colon_index--] = 0; | |
5494 | file_name = local_name; | |
529480d0 | 5495 | regexp = skip_spaces (colon + 1); |
8bd10a10 CM |
5496 | } |
5497 | } | |
5498 | ||
c92d4de1 | 5499 | global_symbol_searcher spec (SEARCH_FUNCTION_DOMAIN, regexp); |
470c0b1c AB |
5500 | if (file_name != nullptr) |
5501 | spec.filenames.push_back (file_name); | |
5502 | std::vector<symbol_search> symbols = spec.search (); | |
c906108c | 5503 | |
c80049d3 | 5504 | scoped_rbreak_breakpoints finalize; |
b9c04fb2 | 5505 | for (const symbol_search &p : symbols) |
c906108c | 5506 | { |
b9c04fb2 | 5507 | if (p.msymbol.minsym == NULL) |
c5aa993b | 5508 | { |
4206d69e | 5509 | struct symtab *symtab = p.symbol->symtab (); |
d01060f0 | 5510 | const char *fullname = symtab_to_fullname (symtab); |
05cba821 | 5511 | |
c80049d3 | 5512 | string = string_printf ("%s:'%s'", fullname, |
987012b8 | 5513 | p.symbol->linkage_name ()); |
c80049d3 | 5514 | break_command (&string[0], from_tty); |
d4bf9040 | 5515 | print_symbol_info (p.symbol, p.block, nullptr); |
c5aa993b | 5516 | } |
c906108c | 5517 | else |
c5aa993b | 5518 | { |
c80049d3 | 5519 | string = string_printf ("'%s'", |
c9d95fa3 | 5520 | p.msymbol.minsym->linkage_name ()); |
6214f497 | 5521 | |
c80049d3 | 5522 | break_command (&string[0], from_tty); |
6cb06a8c TT |
5523 | gdb_printf ("<function, no debug info> %s;\n", |
5524 | p.msymbol.minsym->print_name ()); | |
c5aa993b | 5525 | } |
c906108c | 5526 | } |
c906108c | 5527 | } |
c906108c | 5528 | \f |
c5aa993b | 5529 | |
c62446b1 | 5530 | /* Evaluate if SYMNAME matches LOOKUP_NAME. */ |
1976171a JK |
5531 | |
5532 | static int | |
c62446b1 | 5533 | compare_symbol_name (const char *symbol_name, language symbol_language, |
b5ec771e | 5534 | const lookup_name_info &lookup_name, |
b5ec771e PA |
5535 | completion_match_result &match_res) |
5536 | { | |
d4c2a405 | 5537 | const language_defn *lang = language_def (symbol_language); |
1976171a | 5538 | |
b5ec771e | 5539 | symbol_name_matcher_ftype *name_match |
c9debfb9 | 5540 | = lang->get_symbol_name_matcher (lookup_name); |
1976171a | 5541 | |
a207cff2 | 5542 | return name_match (symbol_name, lookup_name, &match_res); |
1976171a JK |
5543 | } |
5544 | ||
b5ec771e | 5545 | /* See symtab.h. */ |
c906108c | 5546 | |
e08bd6c5 | 5547 | bool |
eb3ff9a5 | 5548 | completion_list_add_name (completion_tracker &tracker, |
b5ec771e | 5549 | language symbol_language, |
eb3ff9a5 | 5550 | const char *symname, |
b5ec771e | 5551 | const lookup_name_info &lookup_name, |
0d5cff50 | 5552 | const char *text, const char *word) |
c906108c | 5553 | { |
b5ec771e PA |
5554 | completion_match_result &match_res |
5555 | = tracker.reset_completion_match_result (); | |
5556 | ||
c378eb4e | 5557 | /* Clip symbols that cannot match. */ |
c62446b1 | 5558 | if (!compare_symbol_name (symname, symbol_language, lookup_name, match_res)) |
e08bd6c5 | 5559 | return false; |
c906108c | 5560 | |
b5ec771e PA |
5561 | /* Refresh SYMNAME from the match string. It's potentially |
5562 | different depending on language. (E.g., on Ada, the match may be | |
5563 | the encoded symbol name wrapped in "<>"). */ | |
5564 | symname = match_res.match.match (); | |
5565 | gdb_assert (symname != NULL); | |
5566 | ||
c906108c | 5567 | /* We have a match for a completion, so add SYMNAME to the current list |
c378eb4e | 5568 | of matches. Note that the name is moved to freshly malloc'd space. */ |
c906108c SS |
5569 | |
5570 | { | |
60a20c19 PA |
5571 | gdb::unique_xmalloc_ptr<char> completion |
5572 | = make_completion_match_str (symname, text, word); | |
ef0b411a | 5573 | |
a207cff2 PA |
5574 | /* Here we pass the match-for-lcd object to add_completion. Some |
5575 | languages match the user text against substrings of symbol | |
5576 | names in some cases. E.g., in C++, "b push_ba" completes to | |
5577 | "std::vector::push_back", "std::string::push_back", etc., and | |
5578 | in this case we want the completion lowest common denominator | |
5579 | to be "push_back" instead of "std::". */ | |
5580 | tracker.add_completion (std::move (completion), | |
a22ecf70 | 5581 | &match_res.match_for_lcd, text, word); |
c906108c | 5582 | } |
e08bd6c5 PA |
5583 | |
5584 | return true; | |
c906108c SS |
5585 | } |
5586 | ||
6da67eb1 PA |
5587 | /* completion_list_add_name wrapper for struct symbol. */ |
5588 | ||
5589 | static void | |
eb3ff9a5 PA |
5590 | completion_list_add_symbol (completion_tracker &tracker, |
5591 | symbol *sym, | |
b5ec771e | 5592 | const lookup_name_info &lookup_name, |
6da67eb1 PA |
5593 | const char *text, const char *word) |
5594 | { | |
e08bd6c5 PA |
5595 | if (!completion_list_add_name (tracker, sym->language (), |
5596 | sym->natural_name (), | |
5597 | lookup_name, text, word)) | |
5598 | return; | |
19a2740f AB |
5599 | |
5600 | /* C++ function symbols include the parameters within both the msymbol | |
5601 | name and the symbol name. The problem is that the msymbol name will | |
5602 | describe the parameters in the most basic way, with typedefs stripped | |
5603 | out, while the symbol name will represent the types as they appear in | |
5604 | the program. This means we will see duplicate entries in the | |
5605 | completion tracker. The following converts the symbol name back to | |
5606 | the msymbol name and removes the msymbol name from the completion | |
5607 | tracker. */ | |
5608 | if (sym->language () == language_cplus | |
66d7f48f | 5609 | && sym->aclass () == LOC_BLOCK) |
19a2740f AB |
5610 | { |
5611 | /* The call to canonicalize returns the empty string if the input | |
5612 | string is already in canonical form, thanks to this we don't | |
5613 | remove the symbol we just added above. */ | |
596dc4ad | 5614 | gdb::unique_xmalloc_ptr<char> str |
19a2740f | 5615 | = cp_canonicalize_string_no_typedefs (sym->natural_name ()); |
596dc4ad TT |
5616 | if (str != nullptr) |
5617 | tracker.remove_completion (str.get ()); | |
19a2740f | 5618 | } |
6da67eb1 PA |
5619 | } |
5620 | ||
5621 | /* completion_list_add_name wrapper for struct minimal_symbol. */ | |
5622 | ||
5623 | static void | |
eb3ff9a5 PA |
5624 | completion_list_add_msymbol (completion_tracker &tracker, |
5625 | minimal_symbol *sym, | |
b5ec771e | 5626 | const lookup_name_info &lookup_name, |
6da67eb1 PA |
5627 | const char *text, const char *word) |
5628 | { | |
c1b5c1eb | 5629 | completion_list_add_name (tracker, sym->language (), |
c9d95fa3 | 5630 | sym->natural_name (), |
1b026119 | 5631 | lookup_name, text, word); |
6da67eb1 PA |
5632 | } |
5633 | ||
b5ec771e | 5634 | |
69636828 AF |
5635 | /* ObjC: In case we are completing on a selector, look as the msymbol |
5636 | again and feed all the selectors into the mill. */ | |
5637 | ||
5638 | static void | |
eb3ff9a5 PA |
5639 | completion_list_objc_symbol (completion_tracker &tracker, |
5640 | struct minimal_symbol *msymbol, | |
b5ec771e | 5641 | const lookup_name_info &lookup_name, |
0d5cff50 | 5642 | const char *text, const char *word) |
69636828 AF |
5643 | { |
5644 | static char *tmp = NULL; | |
5645 | static unsigned int tmplen = 0; | |
9af17804 | 5646 | |
0d5cff50 | 5647 | const char *method, *category, *selector; |
69636828 | 5648 | char *tmp2 = NULL; |
9af17804 | 5649 | |
c9d95fa3 | 5650 | method = msymbol->natural_name (); |
69636828 AF |
5651 | |
5652 | /* Is it a method? */ | |
5653 | if ((method[0] != '-') && (method[0] != '+')) | |
5654 | return; | |
5655 | ||
1b026119 | 5656 | if (text[0] == '[') |
69636828 | 5657 | /* Complete on shortened method method. */ |
b5ec771e PA |
5658 | completion_list_add_name (tracker, language_objc, |
5659 | method + 1, | |
5660 | lookup_name, | |
1b026119 | 5661 | text, word); |
9af17804 | 5662 | |
69636828 AF |
5663 | while ((strlen (method) + 1) >= tmplen) |
5664 | { | |
5665 | if (tmplen == 0) | |
5666 | tmplen = 1024; | |
5667 | else | |
5668 | tmplen *= 2; | |
224c3ddb | 5669 | tmp = (char *) xrealloc (tmp, tmplen); |
69636828 AF |
5670 | } |
5671 | selector = strchr (method, ' '); | |
5672 | if (selector != NULL) | |
5673 | selector++; | |
9af17804 | 5674 | |
69636828 | 5675 | category = strchr (method, '('); |
9af17804 | 5676 | |
69636828 AF |
5677 | if ((category != NULL) && (selector != NULL)) |
5678 | { | |
5679 | memcpy (tmp, method, (category - method)); | |
5680 | tmp[category - method] = ' '; | |
5681 | memcpy (tmp + (category - method) + 1, selector, strlen (selector) + 1); | |
b5ec771e | 5682 | completion_list_add_name (tracker, language_objc, tmp, |
1b026119 PA |
5683 | lookup_name, text, word); |
5684 | if (text[0] == '[') | |
b5ec771e | 5685 | completion_list_add_name (tracker, language_objc, tmp + 1, |
1b026119 | 5686 | lookup_name, text, word); |
69636828 | 5687 | } |
9af17804 | 5688 | |
69636828 AF |
5689 | if (selector != NULL) |
5690 | { | |
5691 | /* Complete on selector only. */ | |
5692 | strcpy (tmp, selector); | |
5693 | tmp2 = strchr (tmp, ']'); | |
5694 | if (tmp2 != NULL) | |
5695 | *tmp2 = '\0'; | |
9af17804 | 5696 | |
b5ec771e | 5697 | completion_list_add_name (tracker, language_objc, tmp, |
1b026119 | 5698 | lookup_name, text, word); |
69636828 AF |
5699 | } |
5700 | } | |
5701 | ||
5702 | /* Break the non-quoted text based on the characters which are in | |
c378eb4e | 5703 | symbols. FIXME: This should probably be language-specific. */ |
69636828 | 5704 | |
6f937416 PA |
5705 | static const char * |
5706 | language_search_unquoted_string (const char *text, const char *p) | |
69636828 AF |
5707 | { |
5708 | for (; p > text; --p) | |
5709 | { | |
5710 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0') | |
5711 | continue; | |
5712 | else | |
5713 | { | |
5714 | if ((current_language->la_language == language_objc)) | |
5715 | { | |
c378eb4e | 5716 | if (p[-1] == ':') /* Might be part of a method name. */ |
69636828 AF |
5717 | continue; |
5718 | else if (p[-1] == '[' && (p[-2] == '-' || p[-2] == '+')) | |
c378eb4e | 5719 | p -= 2; /* Beginning of a method name. */ |
69636828 | 5720 | else if (p[-1] == ' ' || p[-1] == '(' || p[-1] == ')') |
c378eb4e | 5721 | { /* Might be part of a method name. */ |
6f937416 | 5722 | const char *t = p; |
69636828 AF |
5723 | |
5724 | /* Seeing a ' ' or a '(' is not conclusive evidence | |
5725 | that we are in the middle of a method name. However, | |
5726 | finding "-[" or "+[" should be pretty un-ambiguous. | |
5727 | Unfortunately we have to find it now to decide. */ | |
5728 | ||
5729 | while (t > text) | |
5730 | if (isalnum (t[-1]) || t[-1] == '_' || | |
5731 | t[-1] == ' ' || t[-1] == ':' || | |
5732 | t[-1] == '(' || t[-1] == ')') | |
5733 | --t; | |
5734 | else | |
5735 | break; | |
5736 | ||
5737 | if (t[-1] == '[' && (t[-2] == '-' || t[-2] == '+')) | |
c378eb4e MS |
5738 | p = t - 2; /* Method name detected. */ |
5739 | /* Else we leave with p unchanged. */ | |
69636828 AF |
5740 | } |
5741 | } | |
5742 | break; | |
5743 | } | |
5744 | } | |
5745 | return p; | |
5746 | } | |
5747 | ||
edb3359d | 5748 | static void |
eb3ff9a5 PA |
5749 | completion_list_add_fields (completion_tracker &tracker, |
5750 | struct symbol *sym, | |
b5ec771e | 5751 | const lookup_name_info &lookup_name, |
eb3ff9a5 | 5752 | const char *text, const char *word) |
edb3359d | 5753 | { |
66d7f48f | 5754 | if (sym->aclass () == LOC_TYPEDEF) |
edb3359d | 5755 | { |
5f9c5a63 | 5756 | struct type *t = sym->type (); |
78134374 | 5757 | enum type_code c = t->code (); |
edb3359d DJ |
5758 | int j; |
5759 | ||
5760 | if (c == TYPE_CODE_UNION || c == TYPE_CODE_STRUCT) | |
1f704f76 | 5761 | for (j = TYPE_N_BASECLASSES (t); j < t->num_fields (); j++) |
33d16dd9 | 5762 | if (t->field (j).name ()) |
c1b5c1eb | 5763 | completion_list_add_name (tracker, sym->language (), |
33d16dd9 | 5764 | t->field (j).name (), |
1b026119 | 5765 | lookup_name, text, word); |
edb3359d DJ |
5766 | } |
5767 | } | |
5768 | ||
f9d67a22 PA |
5769 | /* See symtab.h. */ |
5770 | ||
5771 | bool | |
5772 | symbol_is_function_or_method (symbol *sym) | |
5773 | { | |
5f9c5a63 | 5774 | switch (sym->type ()->code ()) |
f9d67a22 PA |
5775 | { |
5776 | case TYPE_CODE_FUNC: | |
5777 | case TYPE_CODE_METHOD: | |
5778 | return true; | |
5779 | default: | |
5780 | return false; | |
5781 | } | |
5782 | } | |
5783 | ||
5784 | /* See symtab.h. */ | |
5785 | ||
5786 | bool | |
5787 | symbol_is_function_or_method (minimal_symbol *msymbol) | |
5788 | { | |
60f62e2b | 5789 | switch (msymbol->type ()) |
f9d67a22 PA |
5790 | { |
5791 | case mst_text: | |
5792 | case mst_text_gnu_ifunc: | |
5793 | case mst_solib_trampoline: | |
5794 | case mst_file_text: | |
5795 | return true; | |
5796 | default: | |
5797 | return false; | |
5798 | } | |
5799 | } | |
5800 | ||
ca31ab1d PA |
5801 | /* See symtab.h. */ |
5802 | ||
5803 | bound_minimal_symbol | |
5804 | find_gnu_ifunc (const symbol *sym) | |
5805 | { | |
66d7f48f | 5806 | if (sym->aclass () != LOC_BLOCK) |
ca31ab1d PA |
5807 | return {}; |
5808 | ||
987012b8 | 5809 | lookup_name_info lookup_name (sym->search_name (), |
ca31ab1d | 5810 | symbol_name_match_type::SEARCH_NAME); |
e19b2d94 | 5811 | struct objfile *objfile = sym->objfile (); |
ca31ab1d | 5812 | |
6395b628 | 5813 | CORE_ADDR address = sym->value_block ()->entry_pc (); |
ca31ab1d PA |
5814 | minimal_symbol *ifunc = NULL; |
5815 | ||
5816 | iterate_over_minimal_symbols (objfile, lookup_name, | |
5817 | [&] (minimal_symbol *minsym) | |
5818 | { | |
60f62e2b SM |
5819 | if (minsym->type () == mst_text_gnu_ifunc |
5820 | || minsym->type () == mst_data_gnu_ifunc) | |
ca31ab1d | 5821 | { |
4aeddc50 | 5822 | CORE_ADDR msym_addr = minsym->value_address (objfile); |
60f62e2b | 5823 | if (minsym->type () == mst_data_gnu_ifunc) |
f50776aa | 5824 | { |
08feed99 | 5825 | struct gdbarch *gdbarch = objfile->arch (); |
328d42d8 SM |
5826 | msym_addr = gdbarch_convert_from_func_ptr_addr |
5827 | (gdbarch, msym_addr, current_inferior ()->top_target ()); | |
f50776aa PA |
5828 | } |
5829 | if (msym_addr == address) | |
5830 | { | |
5831 | ifunc = minsym; | |
5832 | return true; | |
5833 | } | |
ca31ab1d PA |
5834 | } |
5835 | return false; | |
5836 | }); | |
5837 | ||
5838 | if (ifunc != NULL) | |
5839 | return {ifunc, objfile}; | |
5840 | return {}; | |
5841 | } | |
5842 | ||
e11c72c7 GB |
5843 | /* Add matching symbols from SYMTAB to the current completion list. */ |
5844 | ||
5845 | static void | |
5846 | add_symtab_completions (struct compunit_symtab *cust, | |
eb3ff9a5 | 5847 | completion_tracker &tracker, |
f9d67a22 | 5848 | complete_symbol_mode mode, |
b5ec771e | 5849 | const lookup_name_info &lookup_name, |
e11c72c7 GB |
5850 | const char *text, const char *word, |
5851 | enum type_code code) | |
5852 | { | |
e11c72c7 GB |
5853 | int i; |
5854 | ||
ff6fa247 GB |
5855 | if (cust == NULL) |
5856 | return; | |
5857 | ||
e11c72c7 GB |
5858 | for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++) |
5859 | { | |
5860 | QUIT; | |
63d609de SM |
5861 | |
5862 | const struct block *b = cust->blockvector ()->block (i); | |
548a89df | 5863 | for (struct symbol *sym : block_iterator_range (b)) |
e11c72c7 | 5864 | { |
f9d67a22 PA |
5865 | if (completion_skip_symbol (mode, sym)) |
5866 | continue; | |
5867 | ||
e11c72c7 | 5868 | if (code == TYPE_CODE_UNDEF |
6c9c307c | 5869 | || (sym->domain () == STRUCT_DOMAIN |
5f9c5a63 | 5870 | && sym->type ()->code () == code)) |
eb3ff9a5 | 5871 | completion_list_add_symbol (tracker, sym, |
b5ec771e | 5872 | lookup_name, |
e11c72c7 GB |
5873 | text, word); |
5874 | } | |
5875 | } | |
5876 | } | |
5877 | ||
eb3ff9a5 PA |
5878 | void |
5879 | default_collect_symbol_completion_matches_break_on | |
b5ec771e PA |
5880 | (completion_tracker &tracker, complete_symbol_mode mode, |
5881 | symbol_name_match_type name_match_type, | |
eb3ff9a5 PA |
5882 | const char *text, const char *word, |
5883 | const char *break_on, enum type_code code) | |
c906108c | 5884 | { |
41d27058 JB |
5885 | /* Problem: All of the symbols have to be copied because readline |
5886 | frees them. I'm not going to worry about this; hopefully there | |
5887 | won't be that many. */ | |
5888 | ||
3977b71f | 5889 | const struct block *b; |
edb3359d | 5890 | const struct block *surrounding_static_block, *surrounding_global_block; |
c906108c | 5891 | /* The symbol we are completing on. Points in same buffer as text. */ |
6f937416 | 5892 | const char *sym_text; |
c906108c | 5893 | |
41d27058 | 5894 | /* Now look for the symbol we are supposed to complete on. */ |
c6756f62 PA |
5895 | if (mode == complete_symbol_mode::LINESPEC) |
5896 | sym_text = text; | |
5897 | else | |
01add95b SM |
5898 | { |
5899 | const char *p; | |
5900 | char quote_found; | |
5901 | const char *quote_pos = NULL; | |
c906108c | 5902 | |
01add95b SM |
5903 | /* First see if this is a quoted string. */ |
5904 | quote_found = '\0'; | |
5905 | for (p = text; *p != '\0'; ++p) | |
5906 | { | |
5907 | if (quote_found != '\0') | |
5908 | { | |
5909 | if (*p == quote_found) | |
5910 | /* Found close quote. */ | |
5911 | quote_found = '\0'; | |
5912 | else if (*p == '\\' && p[1] == quote_found) | |
5913 | /* A backslash followed by the quote character | |
5914 | doesn't end the string. */ | |
5915 | ++p; | |
5916 | } | |
5917 | else if (*p == '\'' || *p == '"') | |
5918 | { | |
5919 | quote_found = *p; | |
5920 | quote_pos = p; | |
5921 | } | |
5922 | } | |
5923 | if (quote_found == '\'') | |
5924 | /* A string within single quotes can be a symbol, so complete on it. */ | |
5925 | sym_text = quote_pos + 1; | |
5926 | else if (quote_found == '"') | |
5927 | /* A double-quoted string is never a symbol, nor does it make sense | |
5928 | to complete it any other way. */ | |
5929 | { | |
5930 | return; | |
5931 | } | |
5932 | else | |
5933 | { | |
5934 | /* It is not a quoted string. Break it based on the characters | |
5935 | which are in symbols. */ | |
5936 | while (p > text) | |
5937 | { | |
5938 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0' | |
5939 | || p[-1] == ':' || strchr (break_on, p[-1]) != NULL) | |
5940 | --p; | |
5941 | else | |
5942 | break; | |
5943 | } | |
5944 | sym_text = p; | |
5945 | } | |
5946 | } | |
c906108c | 5947 | |
1b026119 | 5948 | lookup_name_info lookup_name (sym_text, name_match_type, true); |
b5ec771e | 5949 | |
c906108c SS |
5950 | /* At this point scan through the misc symbol vectors and add each |
5951 | symbol you find to the list. Eventually we want to ignore | |
5952 | anything that isn't a text symbol (everything else will be | |
e11c72c7 | 5953 | handled by the psymtab code below). */ |
c906108c | 5954 | |
2f68a895 TT |
5955 | if (code == TYPE_CODE_UNDEF) |
5956 | { | |
2030c079 | 5957 | for (objfile *objfile : current_program_space->objfiles ()) |
2f68a895 | 5958 | { |
7932255d | 5959 | for (minimal_symbol *msymbol : objfile->msymbols ()) |
5325b9bf TT |
5960 | { |
5961 | QUIT; | |
9af17804 | 5962 | |
5325b9bf TT |
5963 | if (completion_skip_symbol (mode, msymbol)) |
5964 | continue; | |
f9d67a22 | 5965 | |
5325b9bf TT |
5966 | completion_list_add_msymbol (tracker, msymbol, lookup_name, |
5967 | sym_text, word); | |
eb3ff9a5 | 5968 | |
5325b9bf TT |
5969 | completion_list_objc_symbol (tracker, msymbol, lookup_name, |
5970 | sym_text, word); | |
5971 | } | |
2f68a895 TT |
5972 | } |
5973 | } | |
c906108c | 5974 | |
e11c72c7 | 5975 | /* Add completions for all currently loaded symbol tables. */ |
2030c079 | 5976 | for (objfile *objfile : current_program_space->objfiles ()) |
d8aeb77f | 5977 | { |
b669c953 | 5978 | for (compunit_symtab *cust : objfile->compunits ()) |
d8aeb77f TT |
5979 | add_symtab_completions (cust, tracker, mode, lookup_name, |
5980 | sym_text, word, code); | |
5981 | } | |
e11c72c7 | 5982 | |
14bc53a8 PA |
5983 | /* Look through the partial symtabs for all symbols which begin by |
5984 | matching SYM_TEXT. Expand all CUs that you find to the list. */ | |
5985 | expand_symtabs_matching (NULL, | |
b5ec771e PA |
5986 | lookup_name, |
5987 | NULL, | |
14bc53a8 PA |
5988 | [&] (compunit_symtab *symtab) /* expansion notify */ |
5989 | { | |
5990 | add_symtab_completions (symtab, | |
f9d67a22 | 5991 | tracker, mode, lookup_name, |
1b026119 | 5992 | sym_text, word, code); |
df35e626 | 5993 | return true; |
14bc53a8 | 5994 | }, |
03a8ea51 | 5995 | SEARCH_GLOBAL_BLOCK | SEARCH_STATIC_BLOCK, |
c92d4de1 | 5996 | SEARCH_ALL); |
e11c72c7 | 5997 | |
c906108c | 5998 | /* Search upwards from currently selected frame (so that we can |
edb3359d DJ |
5999 | complete on local vars). Also catch fields of types defined in |
6000 | this places which match our text string. Only complete on types | |
c378eb4e | 6001 | visible from current context. */ |
edb3359d DJ |
6002 | |
6003 | b = get_selected_block (0); | |
d24e14a0 TT |
6004 | surrounding_static_block = b == nullptr ? nullptr : b->static_block (); |
6005 | surrounding_global_block = b == nullptr ? nullptr : b->global_block (); | |
edb3359d DJ |
6006 | if (surrounding_static_block != NULL) |
6007 | while (b != surrounding_static_block) | |
6008 | { | |
6009 | QUIT; | |
c906108c | 6010 | |
548a89df | 6011 | for (struct symbol *sym : block_iterator_range (b)) |
edb3359d | 6012 | { |
2f68a895 TT |
6013 | if (code == TYPE_CODE_UNDEF) |
6014 | { | |
b5ec771e | 6015 | completion_list_add_symbol (tracker, sym, lookup_name, |
1b026119 | 6016 | sym_text, word); |
b5ec771e | 6017 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 6018 | sym_text, word); |
2f68a895 | 6019 | } |
6c9c307c | 6020 | else if (sym->domain () == STRUCT_DOMAIN |
5f9c5a63 | 6021 | && sym->type ()->code () == code) |
b5ec771e | 6022 | completion_list_add_symbol (tracker, sym, lookup_name, |
1b026119 | 6023 | sym_text, word); |
edb3359d | 6024 | } |
c5aa993b | 6025 | |
edb3359d DJ |
6026 | /* Stop when we encounter an enclosing function. Do not stop for |
6027 | non-inlined functions - the locals of the enclosing function | |
6028 | are in scope for a nested function. */ | |
a4dfe747 | 6029 | if (b->function () != NULL && b->inlined_p ()) |
edb3359d | 6030 | break; |
f135fe72 | 6031 | b = b->superblock (); |
edb3359d | 6032 | } |
c906108c | 6033 | |
edb3359d | 6034 | /* Add fields from the file's types; symbols will be added below. */ |
c906108c | 6035 | |
2f68a895 TT |
6036 | if (code == TYPE_CODE_UNDEF) |
6037 | { | |
6038 | if (surrounding_static_block != NULL) | |
548a89df | 6039 | for (struct symbol *sym : block_iterator_range (surrounding_static_block)) |
b5ec771e | 6040 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 6041 | sym_text, word); |
edb3359d | 6042 | |
2f68a895 | 6043 | if (surrounding_global_block != NULL) |
548a89df | 6044 | for (struct symbol *sym : block_iterator_range (surrounding_global_block)) |
b5ec771e | 6045 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 6046 | sym_text, word); |
2f68a895 | 6047 | } |
c906108c | 6048 | |
2f68a895 TT |
6049 | /* Skip macros if we are completing a struct tag -- arguable but |
6050 | usually what is expected. */ | |
1ac14a04 | 6051 | if (current_language->macro_expansion () == macro_expansion_c |
2f68a895 | 6052 | && code == TYPE_CODE_UNDEF) |
9a044a89 | 6053 | { |
f6c2623e | 6054 | gdb::unique_xmalloc_ptr<struct macro_scope> scope; |
9a044a89 | 6055 | |
14bc53a8 PA |
6056 | /* This adds a macro's name to the current completion list. */ |
6057 | auto add_macro_name = [&] (const char *macro_name, | |
6058 | const macro_definition *, | |
6059 | macro_source_file *, | |
6060 | int) | |
6061 | { | |
1b026119 PA |
6062 | completion_list_add_name (tracker, language_c, macro_name, |
6063 | lookup_name, sym_text, word); | |
14bc53a8 PA |
6064 | }; |
6065 | ||
9a044a89 TT |
6066 | /* Add any macros visible in the default scope. Note that this |
6067 | may yield the occasional wrong result, because an expression | |
6068 | might be evaluated in a scope other than the default. For | |
6069 | example, if the user types "break file:line if <TAB>", the | |
6070 | resulting expression will be evaluated at "file:line" -- but | |
6071 | at there does not seem to be a way to detect this at | |
6072 | completion time. */ | |
6073 | scope = default_macro_scope (); | |
6074 | if (scope) | |
f6c2623e TT |
6075 | macro_for_each_in_scope (scope->file, scope->line, |
6076 | add_macro_name); | |
9a044a89 TT |
6077 | |
6078 | /* User-defined macros are always visible. */ | |
14bc53a8 | 6079 | macro_for_each (macro_user_macros, add_macro_name); |
9a044a89 | 6080 | } |
ef0b411a GB |
6081 | } |
6082 | ||
eb3ff9a5 PA |
6083 | /* Collect all symbols (regardless of class) which begin by matching |
6084 | TEXT. */ | |
41d27058 | 6085 | |
eb3ff9a5 PA |
6086 | void |
6087 | collect_symbol_completion_matches (completion_tracker &tracker, | |
c6756f62 | 6088 | complete_symbol_mode mode, |
b5ec771e | 6089 | symbol_name_match_type name_match_type, |
eb3ff9a5 | 6090 | const char *text, const char *word) |
41d27058 | 6091 | { |
7e56227d AB |
6092 | current_language->collect_symbol_completion_matches (tracker, mode, |
6093 | name_match_type, | |
6094 | text, word, | |
6095 | TYPE_CODE_UNDEF); | |
2f68a895 TT |
6096 | } |
6097 | ||
eb3ff9a5 PA |
6098 | /* Like collect_symbol_completion_matches, but only collect |
6099 | STRUCT_DOMAIN symbols whose type code is CODE. */ | |
2f68a895 | 6100 | |
eb3ff9a5 PA |
6101 | void |
6102 | collect_symbol_completion_matches_type (completion_tracker &tracker, | |
6103 | const char *text, const char *word, | |
6104 | enum type_code code) | |
2f68a895 | 6105 | { |
c6756f62 | 6106 | complete_symbol_mode mode = complete_symbol_mode::EXPRESSION; |
b5ec771e | 6107 | symbol_name_match_type name_match_type = symbol_name_match_type::EXPRESSION; |
c6756f62 | 6108 | |
2f68a895 TT |
6109 | gdb_assert (code == TYPE_CODE_UNION |
6110 | || code == TYPE_CODE_STRUCT | |
2f68a895 | 6111 | || code == TYPE_CODE_ENUM); |
7e56227d AB |
6112 | current_language->collect_symbol_completion_matches (tracker, mode, |
6113 | name_match_type, | |
6114 | text, word, code); | |
41d27058 JB |
6115 | } |
6116 | ||
eb3ff9a5 PA |
6117 | /* Like collect_symbol_completion_matches, but collects a list of |
6118 | symbols defined in all source files named SRCFILE. */ | |
c94fdfd0 | 6119 | |
eb3ff9a5 PA |
6120 | void |
6121 | collect_file_symbol_completion_matches (completion_tracker &tracker, | |
c6756f62 | 6122 | complete_symbol_mode mode, |
b5ec771e | 6123 | symbol_name_match_type name_match_type, |
eb3ff9a5 PA |
6124 | const char *text, const char *word, |
6125 | const char *srcfile) | |
c94fdfd0 | 6126 | { |
c94fdfd0 | 6127 | /* The symbol we are completing on. Points in same buffer as text. */ |
6f937416 | 6128 | const char *sym_text; |
c94fdfd0 EZ |
6129 | |
6130 | /* Now look for the symbol we are supposed to complete on. | |
6131 | FIXME: This should be language-specific. */ | |
c6756f62 PA |
6132 | if (mode == complete_symbol_mode::LINESPEC) |
6133 | sym_text = text; | |
6134 | else | |
01add95b SM |
6135 | { |
6136 | const char *p; | |
6137 | char quote_found; | |
6138 | const char *quote_pos = NULL; | |
c94fdfd0 | 6139 | |
01add95b SM |
6140 | /* First see if this is a quoted string. */ |
6141 | quote_found = '\0'; | |
6142 | for (p = text; *p != '\0'; ++p) | |
6143 | { | |
6144 | if (quote_found != '\0') | |
6145 | { | |
6146 | if (*p == quote_found) | |
6147 | /* Found close quote. */ | |
6148 | quote_found = '\0'; | |
6149 | else if (*p == '\\' && p[1] == quote_found) | |
6150 | /* A backslash followed by the quote character | |
6151 | doesn't end the string. */ | |
6152 | ++p; | |
6153 | } | |
6154 | else if (*p == '\'' || *p == '"') | |
6155 | { | |
6156 | quote_found = *p; | |
6157 | quote_pos = p; | |
6158 | } | |
6159 | } | |
6160 | if (quote_found == '\'') | |
6161 | /* A string within single quotes can be a symbol, so complete on it. */ | |
6162 | sym_text = quote_pos + 1; | |
6163 | else if (quote_found == '"') | |
6164 | /* A double-quoted string is never a symbol, nor does it make sense | |
6165 | to complete it any other way. */ | |
6166 | { | |
6167 | return; | |
6168 | } | |
6169 | else | |
6170 | { | |
6171 | /* Not a quoted string. */ | |
6172 | sym_text = language_search_unquoted_string (text, p); | |
6173 | } | |
6174 | } | |
c94fdfd0 | 6175 | |
1b026119 | 6176 | lookup_name_info lookup_name (sym_text, name_match_type, true); |
b5ec771e | 6177 | |
8f14146e PA |
6178 | /* Go through symtabs for SRCFILE and check the externs and statics |
6179 | for symbols which match. */ | |
6180 | iterate_over_symtabs (srcfile, [&] (symtab *s) | |
c94fdfd0 | 6181 | { |
c6159652 | 6182 | add_symtab_completions (s->compunit (), |
f9d67a22 | 6183 | tracker, mode, lookup_name, |
1b026119 | 6184 | sym_text, word, TYPE_CODE_UNDEF); |
8f14146e PA |
6185 | return false; |
6186 | }); | |
e27852be DE |
6187 | } |
6188 | ||
c94fdfd0 EZ |
6189 | /* A helper function for make_source_files_completion_list. It adds |
6190 | another file name to a list of possible completions, growing the | |
6191 | list as necessary. */ | |
6192 | ||
6193 | static void | |
6f937416 | 6194 | add_filename_to_list (const char *fname, const char *text, const char *word, |
eb3ff9a5 | 6195 | completion_list *list) |
c94fdfd0 | 6196 | { |
60a20c19 | 6197 | list->emplace_back (make_completion_match_str (fname, text, word)); |
c94fdfd0 EZ |
6198 | } |
6199 | ||
6200 | static int | |
6201 | not_interesting_fname (const char *fname) | |
6202 | { | |
6203 | static const char *illegal_aliens[] = { | |
6204 | "_globals_", /* inserted by coff_symtab_read */ | |
6205 | NULL | |
6206 | }; | |
6207 | int i; | |
6208 | ||
6209 | for (i = 0; illegal_aliens[i]; i++) | |
6210 | { | |
0ba1096a | 6211 | if (filename_cmp (fname, illegal_aliens[i]) == 0) |
c94fdfd0 EZ |
6212 | return 1; |
6213 | } | |
6214 | return 0; | |
6215 | } | |
6216 | ||
f4655dee | 6217 | /* An object of this type is passed as the callback argument to |
ccefe4c4 TT |
6218 | map_partial_symbol_filenames. */ |
6219 | struct add_partial_filename_data | |
6220 | { | |
9fdc877b | 6221 | struct filename_seen_cache *filename_seen_cache; |
6f937416 PA |
6222 | const char *text; |
6223 | const char *word; | |
ccefe4c4 | 6224 | int text_len; |
eb3ff9a5 | 6225 | completion_list *list; |
f4655dee TT |
6226 | |
6227 | void operator() (const char *filename, const char *fullname); | |
ccefe4c4 TT |
6228 | }; |
6229 | ||
6230 | /* A callback for map_partial_symbol_filenames. */ | |
eca864fe | 6231 | |
f4655dee TT |
6232 | void |
6233 | add_partial_filename_data::operator() (const char *filename, | |
6234 | const char *fullname) | |
ccefe4c4 | 6235 | { |
ccefe4c4 TT |
6236 | if (not_interesting_fname (filename)) |
6237 | return; | |
f4655dee TT |
6238 | if (!filename_seen_cache->seen (filename) |
6239 | && filename_ncmp (filename, text, text_len) == 0) | |
ccefe4c4 TT |
6240 | { |
6241 | /* This file matches for a completion; add it to the | |
6242 | current list of matches. */ | |
f4655dee | 6243 | add_filename_to_list (filename, text, word, list); |
ccefe4c4 TT |
6244 | } |
6245 | else | |
6246 | { | |
6247 | const char *base_name = lbasename (filename); | |
433759f7 | 6248 | |
ccefe4c4 | 6249 | if (base_name != filename |
f4655dee TT |
6250 | && !filename_seen_cache->seen (base_name) |
6251 | && filename_ncmp (base_name, text, text_len) == 0) | |
6252 | add_filename_to_list (base_name, text, word, list); | |
ccefe4c4 TT |
6253 | } |
6254 | } | |
6255 | ||
eb3ff9a5 | 6256 | /* Return a list of all source files whose names begin with matching |
49c4e619 | 6257 | TEXT. The file names are looked up in the symbol tables of this |
eb3ff9a5 | 6258 | program. */ |
c94fdfd0 | 6259 | |
eb3ff9a5 | 6260 | completion_list |
6f937416 | 6261 | make_source_files_completion_list (const char *text, const char *word) |
c94fdfd0 | 6262 | { |
c94fdfd0 | 6263 | size_t text_len = strlen (text); |
eb3ff9a5 | 6264 | completion_list list; |
31889e00 | 6265 | const char *base_name; |
ccefe4c4 | 6266 | struct add_partial_filename_data datum; |
c94fdfd0 | 6267 | |
c94fdfd0 EZ |
6268 | if (!have_full_symbols () && !have_partial_symbols ()) |
6269 | return list; | |
6270 | ||
bbf2f4df | 6271 | filename_seen_cache filenames_seen; |
9fdc877b | 6272 | |
2030c079 | 6273 | for (objfile *objfile : current_program_space->objfiles ()) |
c94fdfd0 | 6274 | { |
b669c953 | 6275 | for (compunit_symtab *cu : objfile->compunits ()) |
c94fdfd0 | 6276 | { |
102cc235 | 6277 | for (symtab *s : cu->filetabs ()) |
8b31193a TT |
6278 | { |
6279 | if (not_interesting_fname (s->filename)) | |
6280 | continue; | |
6281 | if (!filenames_seen.seen (s->filename) | |
6282 | && filename_ncmp (s->filename, text, text_len) == 0) | |
6283 | { | |
6284 | /* This file matches for a completion; add it to the current | |
6285 | list of matches. */ | |
6286 | add_filename_to_list (s->filename, text, word, &list); | |
6287 | } | |
6288 | else | |
6289 | { | |
6290 | /* NOTE: We allow the user to type a base name when the | |
6291 | debug info records leading directories, but not the other | |
6292 | way around. This is what subroutines of breakpoint | |
6293 | command do when they parse file names. */ | |
6294 | base_name = lbasename (s->filename); | |
6295 | if (base_name != s->filename | |
6296 | && !filenames_seen.seen (base_name) | |
6297 | && filename_ncmp (base_name, text, text_len) == 0) | |
6298 | add_filename_to_list (base_name, text, word, &list); | |
6299 | } | |
6300 | } | |
c94fdfd0 EZ |
6301 | } |
6302 | } | |
6303 | ||
bbf2f4df | 6304 | datum.filename_seen_cache = &filenames_seen; |
ccefe4c4 TT |
6305 | datum.text = text; |
6306 | datum.word = word; | |
6307 | datum.text_len = text_len; | |
6308 | datum.list = &list; | |
f4655dee | 6309 | map_symbol_filenames (datum, false /*need_fullname*/); |
9fdc877b | 6310 | |
c94fdfd0 EZ |
6311 | return list; |
6312 | } | |
c906108c | 6313 | \f |
51cc5b07 | 6314 | /* Track MAIN */ |
32ac0d11 TT |
6315 | |
6316 | /* Return the "main_info" object for the current program space. If | |
6317 | the object has not yet been created, create it and fill in some | |
6318 | default values. */ | |
6319 | ||
a49d37f3 SM |
6320 | static main_info * |
6321 | get_main_info (program_space *pspace) | |
32ac0d11 | 6322 | { |
a49d37f3 | 6323 | main_info *info = main_progspace_key.get (pspace); |
32ac0d11 TT |
6324 | |
6325 | if (info == NULL) | |
6326 | { | |
3d548a53 TT |
6327 | /* It may seem strange to store the main name in the progspace |
6328 | and also in whatever objfile happens to see a main name in | |
6329 | its debug info. The reason for this is mainly historical: | |
6330 | gdb returned "main" as the name even if no function named | |
6331 | "main" was defined the program; and this approach lets us | |
6332 | keep compatibility. */ | |
a49d37f3 | 6333 | info = main_progspace_key.emplace (pspace); |
32ac0d11 TT |
6334 | } |
6335 | ||
6336 | return info; | |
6337 | } | |
6338 | ||
3d548a53 | 6339 | static void |
a49d37f3 | 6340 | set_main_name (program_space *pspace, const char *name, enum language lang) |
51cc5b07 | 6341 | { |
a49d37f3 | 6342 | main_info *info = get_main_info (pspace); |
32ac0d11 | 6343 | |
25eb2931 | 6344 | if (!info->name_of_main.empty ()) |
51cc5b07 | 6345 | { |
25eb2931 | 6346 | info->name_of_main.clear (); |
32ac0d11 | 6347 | info->language_of_main = language_unknown; |
51cc5b07 AC |
6348 | } |
6349 | if (name != NULL) | |
6350 | { | |
25eb2931 | 6351 | info->name_of_main = name; |
32ac0d11 | 6352 | info->language_of_main = lang; |
51cc5b07 AC |
6353 | } |
6354 | } | |
6355 | ||
ea53e89f JB |
6356 | /* Deduce the name of the main procedure, and set NAME_OF_MAIN |
6357 | accordingly. */ | |
6358 | ||
6359 | static void | |
6360 | find_main_name (void) | |
6361 | { | |
cd6c7346 | 6362 | const char *new_main_name; |
a49d37f3 | 6363 | program_space *pspace = current_program_space; |
3d548a53 TT |
6364 | |
6365 | /* First check the objfiles to see whether a debuginfo reader has | |
6366 | picked up the appropriate main name. Historically the main name | |
6367 | was found in a more or less random way; this approach instead | |
6368 | relies on the order of objfile creation -- which still isn't | |
6369 | guaranteed to get the correct answer, but is just probably more | |
6370 | accurate. */ | |
2030c079 | 6371 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 | 6372 | { |
4ea870ef TT |
6373 | objfile->compute_main_name (); |
6374 | ||
aed57c53 TT |
6375 | if (objfile->per_bfd->name_of_main != NULL) |
6376 | { | |
a49d37f3 SM |
6377 | set_main_name (pspace, |
6378 | objfile->per_bfd->name_of_main, | |
aed57c53 TT |
6379 | objfile->per_bfd->language_of_main); |
6380 | return; | |
6381 | } | |
6382 | } | |
ea53e89f JB |
6383 | |
6384 | /* Try to see if the main procedure is in Ada. */ | |
6385 | /* FIXME: brobecker/2005-03-07: Another way of doing this would | |
6386 | be to add a new method in the language vector, and call this | |
6387 | method for each language until one of them returns a non-empty | |
6388 | name. This would allow us to remove this hard-coded call to | |
6389 | an Ada function. It is not clear that this is a better approach | |
6390 | at this point, because all methods need to be written in a way | |
c378eb4e | 6391 | such that false positives never be returned. For instance, it is |
ea53e89f JB |
6392 | important that a method does not return a wrong name for the main |
6393 | procedure if the main procedure is actually written in a different | |
6394 | language. It is easy to guaranty this with Ada, since we use a | |
6395 | special symbol generated only when the main in Ada to find the name | |
c378eb4e | 6396 | of the main procedure. It is difficult however to see how this can |
ea53e89f JB |
6397 | be guarantied for languages such as C, for instance. This suggests |
6398 | that order of call for these methods becomes important, which means | |
6399 | a more complicated approach. */ | |
6400 | new_main_name = ada_main_name (); | |
6401 | if (new_main_name != NULL) | |
9af17804 | 6402 | { |
a49d37f3 | 6403 | set_main_name (pspace, new_main_name, language_ada); |
ea53e89f JB |
6404 | return; |
6405 | } | |
6406 | ||
63778547 IB |
6407 | new_main_name = d_main_name (); |
6408 | if (new_main_name != NULL) | |
6409 | { | |
a49d37f3 | 6410 | set_main_name (pspace, new_main_name, language_d); |
63778547 IB |
6411 | return; |
6412 | } | |
6413 | ||
a766d390 DE |
6414 | new_main_name = go_main_name (); |
6415 | if (new_main_name != NULL) | |
6416 | { | |
a49d37f3 | 6417 | set_main_name (pspace, new_main_name, language_go); |
a766d390 DE |
6418 | return; |
6419 | } | |
6420 | ||
cd6c7346 PM |
6421 | new_main_name = pascal_main_name (); |
6422 | if (new_main_name != NULL) | |
9af17804 | 6423 | { |
a49d37f3 | 6424 | set_main_name (pspace, new_main_name, language_pascal); |
cd6c7346 PM |
6425 | return; |
6426 | } | |
6427 | ||
ea53e89f JB |
6428 | /* The languages above didn't identify the name of the main procedure. |
6429 | Fallback to "main". */ | |
d3214198 TV |
6430 | |
6431 | /* Try to find language for main in psymtabs. */ | |
531bd038 MM |
6432 | bool symbol_found_p = false; |
6433 | gdbarch_iterate_over_objfiles_in_search_order | |
99d9c3b9 | 6434 | (current_inferior ()->arch (), |
a49d37f3 | 6435 | [&symbol_found_p, pspace] (objfile *obj) |
531bd038 MM |
6436 | { |
6437 | language lang | |
b63eb1f3 TT |
6438 | = obj->lookup_global_symbol_language ("main", |
6439 | SEARCH_FUNCTION_DOMAIN, | |
531bd038 MM |
6440 | &symbol_found_p); |
6441 | if (symbol_found_p) | |
6442 | { | |
a49d37f3 | 6443 | set_main_name (pspace, "main", lang); |
531bd038 MM |
6444 | return 1; |
6445 | } | |
6446 | ||
6447 | return 0; | |
6448 | }, nullptr); | |
6449 | ||
6450 | if (symbol_found_p) | |
6451 | return; | |
d3214198 | 6452 | |
a49d37f3 | 6453 | set_main_name (pspace, "main", language_unknown); |
ea53e89f JB |
6454 | } |
6455 | ||
cd215b2e TT |
6456 | /* See symtab.h. */ |
6457 | ||
6458 | const char * | |
6459 | main_name () | |
51cc5b07 | 6460 | { |
a49d37f3 | 6461 | main_info *info = get_main_info (current_program_space); |
32ac0d11 | 6462 | |
25eb2931 | 6463 | if (info->name_of_main.empty ()) |
ea53e89f JB |
6464 | find_main_name (); |
6465 | ||
25eb2931 | 6466 | return info->name_of_main.c_str (); |
51cc5b07 AC |
6467 | } |
6468 | ||
9e6c82ad TT |
6469 | /* Return the language of the main function. If it is not known, |
6470 | return language_unknown. */ | |
6471 | ||
6472 | enum language | |
6473 | main_language (void) | |
6474 | { | |
a49d37f3 | 6475 | main_info *info = get_main_info (current_program_space); |
32ac0d11 | 6476 | |
25eb2931 | 6477 | if (info->name_of_main.empty ()) |
32ac0d11 TT |
6478 | find_main_name (); |
6479 | ||
6480 | return info->language_of_main; | |
9e6c82ad TT |
6481 | } |
6482 | ||
a6c727b2 DJ |
6483 | /* Return 1 if the supplied producer string matches the ARM RealView |
6484 | compiler (armcc). */ | |
6485 | ||
ececd218 | 6486 | bool |
a6c727b2 DJ |
6487 | producer_is_realview (const char *producer) |
6488 | { | |
6489 | static const char *const arm_idents[] = { | |
6490 | "ARM C Compiler, ADS", | |
6491 | "Thumb C Compiler, ADS", | |
6492 | "ARM C++ Compiler, ADS", | |
6493 | "Thumb C++ Compiler, ADS", | |
6494 | "ARM/Thumb C/C++ Compiler, RVCT", | |
6495 | "ARM C/C++ Compiler, RVCT" | |
6496 | }; | |
a6c727b2 DJ |
6497 | |
6498 | if (producer == NULL) | |
ececd218 | 6499 | return false; |
a6c727b2 | 6500 | |
696d6f4d TT |
6501 | for (const char *ident : arm_idents) |
6502 | if (startswith (producer, ident)) | |
ececd218 | 6503 | return true; |
a6c727b2 | 6504 | |
ececd218 | 6505 | return false; |
a6c727b2 | 6506 | } |
ed0616c6 | 6507 | |
f1e6e072 TT |
6508 | \f |
6509 | ||
6510 | /* The next index to hand out in response to a registration request. */ | |
6511 | ||
6512 | static int next_aclass_value = LOC_FINAL_VALUE; | |
6513 | ||
6514 | /* The maximum number of "aclass" registrations we support. This is | |
6515 | constant for convenience. */ | |
658d5e0c | 6516 | #define MAX_SYMBOL_IMPLS (LOC_FINAL_VALUE + 11) |
f1e6e072 TT |
6517 | |
6518 | /* The objects representing the various "aclass" values. The elements | |
6519 | from 0 up to LOC_FINAL_VALUE-1 represent themselves, and subsequent | |
6520 | elements are those registered at gdb initialization time. */ | |
6521 | ||
6522 | static struct symbol_impl symbol_impl[MAX_SYMBOL_IMPLS]; | |
6523 | ||
6524 | /* The globally visible pointer. This is separate from 'symbol_impl' | |
6525 | so that it can be const. */ | |
6526 | ||
6bc3c5b4 | 6527 | gdb::array_view<const struct symbol_impl> symbol_impls (symbol_impl); |
f1e6e072 TT |
6528 | |
6529 | /* Make sure we saved enough room in struct symbol. */ | |
6530 | ||
69f6730d | 6531 | static_assert (MAX_SYMBOL_IMPLS <= (1 << SYMBOL_ACLASS_BITS)); |
f1e6e072 TT |
6532 | |
6533 | /* Register a computed symbol type. ACLASS must be LOC_COMPUTED. OPS | |
6534 | is the ops vector associated with this index. This returns the new | |
6535 | index, which should be used as the aclass_index field for symbols | |
6536 | of this type. */ | |
6537 | ||
6538 | int | |
6539 | register_symbol_computed_impl (enum address_class aclass, | |
6540 | const struct symbol_computed_ops *ops) | |
6541 | { | |
6542 | int result = next_aclass_value++; | |
6543 | ||
6544 | gdb_assert (aclass == LOC_COMPUTED); | |
6545 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6546 | symbol_impl[result].aclass = aclass; | |
6547 | symbol_impl[result].ops_computed = ops; | |
6548 | ||
24d6c2a0 TT |
6549 | /* Sanity check OPS. */ |
6550 | gdb_assert (ops != NULL); | |
6551 | gdb_assert (ops->tracepoint_var_ref != NULL); | |
6552 | gdb_assert (ops->describe_location != NULL); | |
0b31a4bc | 6553 | gdb_assert (ops->get_symbol_read_needs != NULL); |
24d6c2a0 TT |
6554 | gdb_assert (ops->read_variable != NULL); |
6555 | ||
f1e6e072 TT |
6556 | return result; |
6557 | } | |
6558 | ||
6559 | /* Register a function with frame base type. ACLASS must be LOC_BLOCK. | |
6560 | OPS is the ops vector associated with this index. This returns the | |
6561 | new index, which should be used as the aclass_index field for symbols | |
6562 | of this type. */ | |
6563 | ||
6564 | int | |
6565 | register_symbol_block_impl (enum address_class aclass, | |
6566 | const struct symbol_block_ops *ops) | |
6567 | { | |
6568 | int result = next_aclass_value++; | |
6569 | ||
6570 | gdb_assert (aclass == LOC_BLOCK); | |
6571 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6572 | symbol_impl[result].aclass = aclass; | |
6573 | symbol_impl[result].ops_block = ops; | |
6574 | ||
6575 | /* Sanity check OPS. */ | |
6576 | gdb_assert (ops != NULL); | |
36ed3d84 TT |
6577 | gdb_assert (ops->find_frame_base_location != nullptr |
6578 | || ops->get_block_value != nullptr); | |
f1e6e072 TT |
6579 | |
6580 | return result; | |
6581 | } | |
6582 | ||
6583 | /* Register a register symbol type. ACLASS must be LOC_REGISTER or | |
6584 | LOC_REGPARM_ADDR. OPS is the register ops vector associated with | |
6585 | this index. This returns the new index, which should be used as | |
6586 | the aclass_index field for symbols of this type. */ | |
6587 | ||
6588 | int | |
6589 | register_symbol_register_impl (enum address_class aclass, | |
6590 | const struct symbol_register_ops *ops) | |
6591 | { | |
6592 | int result = next_aclass_value++; | |
6593 | ||
6594 | gdb_assert (aclass == LOC_REGISTER || aclass == LOC_REGPARM_ADDR); | |
6595 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6596 | symbol_impl[result].aclass = aclass; | |
6597 | symbol_impl[result].ops_register = ops; | |
6598 | ||
6599 | return result; | |
6600 | } | |
6601 | ||
6602 | /* Initialize elements of 'symbol_impl' for the constants in enum | |
6603 | address_class. */ | |
6604 | ||
6605 | static void | |
6606 | initialize_ordinary_address_classes (void) | |
6607 | { | |
6608 | int i; | |
6609 | ||
6610 | for (i = 0; i < LOC_FINAL_VALUE; ++i) | |
aead7601 | 6611 | symbol_impl[i].aclass = (enum address_class) i; |
f1e6e072 TT |
6612 | } |
6613 | ||
6614 | \f | |
6615 | ||
08be3fe3 DE |
6616 | /* See symtab.h. */ |
6617 | ||
6618 | struct objfile * | |
e19b2d94 | 6619 | symbol::objfile () const |
08be3fe3 | 6620 | { |
e19b2d94 TT |
6621 | gdb_assert (is_objfile_owned ()); |
6622 | return owner.symtab->compunit ()->objfile (); | |
08be3fe3 DE |
6623 | } |
6624 | ||
6625 | /* See symtab.h. */ | |
6626 | ||
6627 | struct gdbarch * | |
bcd6845e | 6628 | symbol::arch () const |
08be3fe3 | 6629 | { |
bcd6845e TT |
6630 | if (!is_objfile_owned ()) |
6631 | return owner.arch; | |
6632 | return owner.symtab->compunit ()->objfile ()->arch (); | |
08be3fe3 DE |
6633 | } |
6634 | ||
6635 | /* See symtab.h. */ | |
6636 | ||
6637 | struct symtab * | |
4206d69e | 6638 | symbol::symtab () const |
08be3fe3 | 6639 | { |
4206d69e TT |
6640 | gdb_assert (is_objfile_owned ()); |
6641 | return owner.symtab; | |
08be3fe3 DE |
6642 | } |
6643 | ||
6644 | /* See symtab.h. */ | |
6645 | ||
6646 | void | |
4206d69e | 6647 | symbol::set_symtab (struct symtab *symtab) |
08be3fe3 | 6648 | { |
4206d69e TT |
6649 | gdb_assert (is_objfile_owned ()); |
6650 | owner.symtab = symtab; | |
08be3fe3 DE |
6651 | } |
6652 | ||
4b610737 TT |
6653 | /* See symtab.h. */ |
6654 | ||
6655 | CORE_ADDR | |
f9b96f67 | 6656 | symbol::get_maybe_copied_address () const |
4b610737 | 6657 | { |
f9b96f67 SM |
6658 | gdb_assert (this->maybe_copied); |
6659 | gdb_assert (this->aclass () == LOC_STATIC); | |
4b610737 | 6660 | |
f9b96f67 | 6661 | const char *linkage_name = this->linkage_name (); |
47ef0ac7 TT |
6662 | bound_minimal_symbol minsym = lookup_minimal_symbol_linkage (linkage_name, |
6663 | false); | |
6664 | if (minsym.minsym != nullptr) | |
6665 | return minsym.value_address (); | |
f9b96f67 | 6666 | return this->m_value.address; |
4b610737 TT |
6667 | } |
6668 | ||
6669 | /* See symtab.h. */ | |
6670 | ||
6671 | CORE_ADDR | |
23e6f781 | 6672 | minimal_symbol::get_maybe_copied_address (objfile *objf) const |
4b610737 | 6673 | { |
23e6f781 | 6674 | gdb_assert (this->maybe_copied (objf)); |
4b610737 TT |
6675 | gdb_assert ((objf->flags & OBJF_MAINLINE) == 0); |
6676 | ||
23e6f781 | 6677 | const char *linkage_name = this->linkage_name (); |
47ef0ac7 TT |
6678 | bound_minimal_symbol found = lookup_minimal_symbol_linkage (linkage_name, |
6679 | true); | |
6680 | if (found.minsym != nullptr) | |
6681 | return found.value_address (); | |
23e6f781 SM |
6682 | return (this->m_value.address |
6683 | + objf->section_offsets[this->section_index ()]); | |
4b610737 TT |
6684 | } |
6685 | ||
e623cf5d TT |
6686 | \f |
6687 | ||
165f8965 AB |
6688 | /* Hold the sub-commands of 'info module'. */ |
6689 | ||
6690 | static struct cmd_list_element *info_module_cmdlist = NULL; | |
6691 | ||
165f8965 AB |
6692 | /* See symtab.h. */ |
6693 | ||
6694 | std::vector<module_symbol_search> | |
6695 | search_module_symbols (const char *module_regexp, const char *regexp, | |
c92d4de1 | 6696 | const char *type_regexp, domain_search_flags kind) |
165f8965 AB |
6697 | { |
6698 | std::vector<module_symbol_search> results; | |
6699 | ||
6700 | /* Search for all modules matching MODULE_REGEXP. */ | |
c92d4de1 | 6701 | global_symbol_searcher spec1 (SEARCH_MODULE_DOMAIN, module_regexp); |
470c0b1c AB |
6702 | spec1.set_exclude_minsyms (true); |
6703 | std::vector<symbol_search> modules = spec1.search (); | |
165f8965 AB |
6704 | |
6705 | /* Now search for all symbols of the required KIND matching the required | |
6706 | regular expressions. We figure out which ones are in which modules | |
6707 | below. */ | |
470c0b1c AB |
6708 | global_symbol_searcher spec2 (kind, regexp); |
6709 | spec2.set_symbol_type_regexp (type_regexp); | |
6710 | spec2.set_exclude_minsyms (true); | |
6711 | std::vector<symbol_search> symbols = spec2.search (); | |
165f8965 AB |
6712 | |
6713 | /* Now iterate over all MODULES, checking to see which items from | |
6714 | SYMBOLS are in each module. */ | |
6715 | for (const symbol_search &p : modules) | |
6716 | { | |
6717 | QUIT; | |
6718 | ||
6719 | /* This is a module. */ | |
6720 | gdb_assert (p.symbol != nullptr); | |
6721 | ||
987012b8 | 6722 | std::string prefix = p.symbol->print_name (); |
165f8965 AB |
6723 | prefix += "::"; |
6724 | ||
6725 | for (const symbol_search &q : symbols) | |
6726 | { | |
6727 | if (q.symbol == nullptr) | |
6728 | continue; | |
6729 | ||
987012b8 | 6730 | if (strncmp (q.symbol->print_name (), prefix.c_str (), |
165f8965 AB |
6731 | prefix.size ()) != 0) |
6732 | continue; | |
6733 | ||
6734 | results.push_back ({p, q}); | |
6735 | } | |
6736 | } | |
6737 | ||
6738 | return results; | |
6739 | } | |
6740 | ||
6741 | /* Implement the core of both 'info module functions' and 'info module | |
6742 | variables'. */ | |
6743 | ||
6744 | static void | |
6745 | info_module_subcommand (bool quiet, const char *module_regexp, | |
6746 | const char *regexp, const char *type_regexp, | |
c92d4de1 | 6747 | domain_search_flags kind) |
165f8965 | 6748 | { |
c92d4de1 TT |
6749 | gdb_assert (kind == SEARCH_FUNCTION_DOMAIN || kind == SEARCH_VAR_DOMAIN); |
6750 | ||
165f8965 AB |
6751 | /* Print a header line. Don't build the header line bit by bit as this |
6752 | prevents internationalisation. */ | |
6753 | if (!quiet) | |
6754 | { | |
6755 | if (module_regexp == nullptr) | |
6756 | { | |
6757 | if (type_regexp == nullptr) | |
6758 | { | |
6759 | if (regexp == nullptr) | |
c92d4de1 | 6760 | gdb_printf ((kind == SEARCH_VAR_DOMAIN |
6cb06a8c TT |
6761 | ? _("All variables in all modules:") |
6762 | : _("All functions in all modules:"))); | |
165f8965 | 6763 | else |
6cb06a8c | 6764 | gdb_printf |
c92d4de1 | 6765 | ((kind == SEARCH_VAR_DOMAIN |
165f8965 AB |
6766 | ? _("All variables matching regular expression" |
6767 | " \"%s\" in all modules:") | |
6768 | : _("All functions matching regular expression" | |
6769 | " \"%s\" in all modules:")), | |
6770 | regexp); | |
6771 | } | |
6772 | else | |
6773 | { | |
6774 | if (regexp == nullptr) | |
6cb06a8c | 6775 | gdb_printf |
c92d4de1 | 6776 | ((kind == SEARCH_VAR_DOMAIN |
165f8965 AB |
6777 | ? _("All variables with type matching regular " |
6778 | "expression \"%s\" in all modules:") | |
6779 | : _("All functions with type matching regular " | |
6780 | "expression \"%s\" in all modules:")), | |
6781 | type_regexp); | |
6782 | else | |
6cb06a8c | 6783 | gdb_printf |
c92d4de1 | 6784 | ((kind == SEARCH_VAR_DOMAIN |
165f8965 AB |
6785 | ? _("All variables matching regular expression " |
6786 | "\"%s\",\n\twith type matching regular " | |
6787 | "expression \"%s\" in all modules:") | |
6788 | : _("All functions matching regular expression " | |
6789 | "\"%s\",\n\twith type matching regular " | |
6790 | "expression \"%s\" in all modules:")), | |
6791 | regexp, type_regexp); | |
6792 | } | |
6793 | } | |
6794 | else | |
6795 | { | |
6796 | if (type_regexp == nullptr) | |
6797 | { | |
6798 | if (regexp == nullptr) | |
6cb06a8c | 6799 | gdb_printf |
c92d4de1 | 6800 | ((kind == SEARCH_VAR_DOMAIN |
165f8965 AB |
6801 | ? _("All variables in all modules matching regular " |
6802 | "expression \"%s\":") | |
6803 | : _("All functions in all modules matching regular " | |
6804 | "expression \"%s\":")), | |
6805 | module_regexp); | |
6806 | else | |
6cb06a8c | 6807 | gdb_printf |
c92d4de1 | 6808 | ((kind == SEARCH_VAR_DOMAIN |
165f8965 AB |
6809 | ? _("All variables matching regular expression " |
6810 | "\"%s\",\n\tin all modules matching regular " | |
6811 | "expression \"%s\":") | |
6812 | : _("All functions matching regular expression " | |
6813 | "\"%s\",\n\tin all modules matching regular " | |
6814 | "expression \"%s\":")), | |
6815 | regexp, module_regexp); | |
6816 | } | |
6817 | else | |
6818 | { | |
6819 | if (regexp == nullptr) | |
6cb06a8c | 6820 | gdb_printf |
c92d4de1 | 6821 | ((kind == SEARCH_VAR_DOMAIN |
165f8965 AB |
6822 | ? _("All variables with type matching regular " |
6823 | "expression \"%s\"\n\tin all modules matching " | |
6824 | "regular expression \"%s\":") | |
6825 | : _("All functions with type matching regular " | |
6826 | "expression \"%s\"\n\tin all modules matching " | |
6827 | "regular expression \"%s\":")), | |
6828 | type_regexp, module_regexp); | |
6829 | else | |
6cb06a8c | 6830 | gdb_printf |
c92d4de1 | 6831 | ((kind == SEARCH_VAR_DOMAIN |
165f8965 AB |
6832 | ? _("All variables matching regular expression " |
6833 | "\"%s\",\n\twith type matching regular expression " | |
6834 | "\"%s\",\n\tin all modules matching regular " | |
6835 | "expression \"%s\":") | |
6836 | : _("All functions matching regular expression " | |
6837 | "\"%s\",\n\twith type matching regular expression " | |
6838 | "\"%s\",\n\tin all modules matching regular " | |
6839 | "expression \"%s\":")), | |
6840 | regexp, type_regexp, module_regexp); | |
6841 | } | |
6842 | } | |
6cb06a8c | 6843 | gdb_printf ("\n"); |
165f8965 AB |
6844 | } |
6845 | ||
6846 | /* Find all symbols of type KIND matching the given regular expressions | |
6847 | along with the symbols for the modules in which those symbols | |
6848 | reside. */ | |
6849 | std::vector<module_symbol_search> module_symbols | |
6850 | = search_module_symbols (module_regexp, regexp, type_regexp, kind); | |
6851 | ||
6852 | std::sort (module_symbols.begin (), module_symbols.end (), | |
6853 | [] (const module_symbol_search &a, const module_symbol_search &b) | |
6854 | { | |
6855 | if (a.first < b.first) | |
6856 | return true; | |
6857 | else if (a.first == b.first) | |
6858 | return a.second < b.second; | |
6859 | else | |
6860 | return false; | |
6861 | }); | |
6862 | ||
6863 | const char *last_filename = ""; | |
6864 | const symbol *last_module_symbol = nullptr; | |
6865 | for (const module_symbol_search &ms : module_symbols) | |
6866 | { | |
6867 | const symbol_search &p = ms.first; | |
6868 | const symbol_search &q = ms.second; | |
6869 | ||
6870 | gdb_assert (q.symbol != nullptr); | |
6871 | ||
6872 | if (last_module_symbol != p.symbol) | |
6873 | { | |
6cb06a8c TT |
6874 | gdb_printf ("\n"); |
6875 | gdb_printf (_("Module \"%s\":\n"), p.symbol->print_name ()); | |
165f8965 AB |
6876 | last_module_symbol = p.symbol; |
6877 | last_filename = ""; | |
6878 | } | |
6879 | ||
d4bf9040 | 6880 | print_symbol_info (q.symbol, q.block, last_filename); |
165f8965 | 6881 | last_filename |
4206d69e | 6882 | = symtab_to_filename_for_display (q.symbol->symtab ()); |
165f8965 AB |
6883 | } |
6884 | } | |
6885 | ||
6886 | /* Hold the option values for the 'info module .....' sub-commands. */ | |
6887 | ||
6888 | struct info_modules_var_func_options | |
6889 | { | |
6890 | bool quiet = false; | |
e0700ba4 SM |
6891 | std::string type_regexp; |
6892 | std::string module_regexp; | |
165f8965 AB |
6893 | }; |
6894 | ||
6895 | /* The options used by 'info module variables' and 'info module functions' | |
6896 | commands. */ | |
6897 | ||
6898 | static const gdb::option::option_def info_modules_var_func_options_defs [] = { | |
6899 | gdb::option::boolean_option_def<info_modules_var_func_options> { | |
6900 | "q", | |
6901 | [] (info_modules_var_func_options *opt) { return &opt->quiet; }, | |
6902 | nullptr, /* show_cmd_cb */ | |
6903 | nullptr /* set_doc */ | |
6904 | }, | |
6905 | ||
6906 | gdb::option::string_option_def<info_modules_var_func_options> { | |
6907 | "t", | |
6908 | [] (info_modules_var_func_options *opt) { return &opt->type_regexp; }, | |
6909 | nullptr, /* show_cmd_cb */ | |
6910 | nullptr /* set_doc */ | |
6911 | }, | |
6912 | ||
6913 | gdb::option::string_option_def<info_modules_var_func_options> { | |
6914 | "m", | |
6915 | [] (info_modules_var_func_options *opt) { return &opt->module_regexp; }, | |
6916 | nullptr, /* show_cmd_cb */ | |
6917 | nullptr /* set_doc */ | |
6918 | } | |
6919 | }; | |
6920 | ||
6921 | /* Return the option group used by the 'info module ...' sub-commands. */ | |
6922 | ||
6923 | static inline gdb::option::option_def_group | |
6924 | make_info_modules_var_func_options_def_group | |
6925 | (info_modules_var_func_options *opts) | |
6926 | { | |
6927 | return {{info_modules_var_func_options_defs}, opts}; | |
6928 | } | |
6929 | ||
6930 | /* Implements the 'info module functions' command. */ | |
6931 | ||
6932 | static void | |
6933 | info_module_functions_command (const char *args, int from_tty) | |
6934 | { | |
6935 | info_modules_var_func_options opts; | |
6936 | auto grp = make_info_modules_var_func_options_def_group (&opts); | |
6937 | gdb::option::process_options | |
6938 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
6939 | if (args != nullptr && *args == '\0') | |
6940 | args = nullptr; | |
6941 | ||
e0700ba4 SM |
6942 | info_module_subcommand |
6943 | (opts.quiet, | |
6944 | opts.module_regexp.empty () ? nullptr : opts.module_regexp.c_str (), args, | |
6945 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
c92d4de1 | 6946 | SEARCH_FUNCTION_DOMAIN); |
165f8965 AB |
6947 | } |
6948 | ||
6949 | /* Implements the 'info module variables' command. */ | |
6950 | ||
6951 | static void | |
6952 | info_module_variables_command (const char *args, int from_tty) | |
6953 | { | |
6954 | info_modules_var_func_options opts; | |
6955 | auto grp = make_info_modules_var_func_options_def_group (&opts); | |
6956 | gdb::option::process_options | |
6957 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
6958 | if (args != nullptr && *args == '\0') | |
6959 | args = nullptr; | |
6960 | ||
e0700ba4 SM |
6961 | info_module_subcommand |
6962 | (opts.quiet, | |
6963 | opts.module_regexp.empty () ? nullptr : opts.module_regexp.c_str (), args, | |
6964 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
c92d4de1 | 6965 | SEARCH_VAR_DOMAIN); |
165f8965 AB |
6966 | } |
6967 | ||
6968 | /* Command completer for 'info module ...' sub-commands. */ | |
6969 | ||
6970 | static void | |
6971 | info_module_var_func_command_completer (struct cmd_list_element *ignore, | |
6972 | completion_tracker &tracker, | |
6973 | const char *text, | |
6974 | const char * /* word */) | |
6975 | { | |
6976 | ||
6977 | const auto group = make_info_modules_var_func_options_def_group (nullptr); | |
6978 | if (gdb::option::complete_options | |
6979 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
6980 | return; | |
6981 | ||
6982 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
6983 | symbol_completer (ignore, tracker, text, word); | |
6984 | } | |
6985 | ||
6986 | \f | |
6987 | ||
6c265988 | 6988 | void _initialize_symtab (); |
c906108c | 6989 | void |
6c265988 | 6990 | _initialize_symtab () |
c906108c | 6991 | { |
60cfcb20 AB |
6992 | cmd_list_element *c; |
6993 | ||
f1e6e072 TT |
6994 | initialize_ordinary_address_classes (); |
6995 | ||
60cfcb20 AB |
6996 | c = add_info ("variables", info_variables_command, |
6997 | info_print_args_help (_("\ | |
12615cba | 6998 | All global and static variable names or those matching REGEXPs.\n\ |
4acfdd20 | 6999 | Usage: info variables [-q] [-n] [-t TYPEREGEXP] [NAMEREGEXP]\n\ |
12615cba | 7000 | Prints the global and static variables.\n"), |
4acfdd20 AB |
7001 | _("global and static variables"), |
7002 | true)); | |
095252be | 7003 | set_cmd_completer_handle_brkchars (c, info_vars_funcs_command_completer); |
c906108c | 7004 | |
60cfcb20 AB |
7005 | c = add_info ("functions", info_functions_command, |
7006 | info_print_args_help (_("\ | |
12615cba | 7007 | All function names or those matching REGEXPs.\n\ |
4acfdd20 | 7008 | Usage: info functions [-q] [-n] [-t TYPEREGEXP] [NAMEREGEXP]\n\ |
12615cba | 7009 | Prints the functions.\n"), |
4acfdd20 AB |
7010 | _("functions"), |
7011 | true)); | |
095252be | 7012 | set_cmd_completer_handle_brkchars (c, info_vars_funcs_command_completer); |
c906108c | 7013 | |
a8eab7c6 AB |
7014 | c = add_info ("types", info_types_command, _("\ |
7015 | All type names, or those matching REGEXP.\n\ | |
7016 | Usage: info types [-q] [REGEXP]\n\ | |
7017 | Print information about all types matching REGEXP, or all types if no\n\ | |
7018 | REGEXP is given. The optional flag -q disables printing of headers.")); | |
7019 | set_cmd_completer_handle_brkchars (c, info_types_command_completer); | |
c906108c | 7020 | |
0e350a05 AB |
7021 | const auto info_sources_opts |
7022 | = make_info_sources_options_def_group (nullptr); | |
28cd9371 PW |
7023 | |
7024 | static std::string info_sources_help | |
7025 | = gdb::option::build_help (_("\ | |
7026 | All source files in the program or those matching REGEXP.\n\ | |
7027 | Usage: info sources [OPTION]... [REGEXP]\n\ | |
7028 | By default, REGEXP is used to match anywhere in the filename.\n\ | |
7029 | \n\ | |
7030 | Options:\n\ | |
7031 | %OPTIONS%"), | |
7032 | info_sources_opts); | |
7033 | ||
7034 | c = add_info ("sources", info_sources_command, info_sources_help.c_str ()); | |
7035 | set_cmd_completer_handle_brkchars (c, info_sources_command_completer); | |
c906108c | 7036 | |
59c35742 AB |
7037 | c = add_info ("modules", info_modules_command, |
7038 | _("All module names, or those matching REGEXP.")); | |
7039 | set_cmd_completer_handle_brkchars (c, info_types_command_completer); | |
7040 | ||
03d83cd5 RB |
7041 | add_info ("main", info_main_command, |
7042 | _("Get main symbol to identify entry point into program.")); | |
7043 | ||
0743fc83 | 7044 | add_basic_prefix_cmd ("module", class_info, _("\ |
165f8965 | 7045 | Print information about modules."), |
2f822da5 | 7046 | &info_module_cmdlist, 0, &infolist); |
165f8965 AB |
7047 | |
7048 | c = add_cmd ("functions", class_info, info_module_functions_command, _("\ | |
7049 | Display functions arranged by modules.\n\ | |
7050 | Usage: info module functions [-q] [-m MODREGEXP] [-t TYPEREGEXP] [REGEXP]\n\ | |
7051 | Print a summary of all functions within each Fortran module, grouped by\n\ | |
7052 | module and file. For each function the line on which the function is\n\ | |
7053 | defined is given along with the type signature and name of the function.\n\ | |
7054 | \n\ | |
7055 | If REGEXP is provided then only functions whose name matches REGEXP are\n\ | |
7056 | listed. If MODREGEXP is provided then only functions in modules matching\n\ | |
7057 | MODREGEXP are listed. If TYPEREGEXP is given then only functions whose\n\ | |
7058 | type signature matches TYPEREGEXP are listed.\n\ | |
7059 | \n\ | |
7060 | The -q flag suppresses printing some header information."), | |
7061 | &info_module_cmdlist); | |
7062 | set_cmd_completer_handle_brkchars | |
7063 | (c, info_module_var_func_command_completer); | |
7064 | ||
7065 | c = add_cmd ("variables", class_info, info_module_variables_command, _("\ | |
7066 | Display variables arranged by modules.\n\ | |
7067 | Usage: info module variables [-q] [-m MODREGEXP] [-t TYPEREGEXP] [REGEXP]\n\ | |
7068 | Print a summary of all variables within each Fortran module, grouped by\n\ | |
7069 | module and file. For each variable the line on which the variable is\n\ | |
7070 | defined is given along with the type and name of the variable.\n\ | |
7071 | \n\ | |
7072 | If REGEXP is provided then only variables whose name matches REGEXP are\n\ | |
7073 | listed. If MODREGEXP is provided then only variables in modules matching\n\ | |
7074 | MODREGEXP are listed. If TYPEREGEXP is given then only variables whose\n\ | |
7075 | type matches TYPEREGEXP are listed.\n\ | |
7076 | \n\ | |
7077 | The -q flag suppresses printing some header information."), | |
7078 | &info_module_cmdlist); | |
7079 | set_cmd_completer_handle_brkchars | |
7080 | (c, info_module_var_func_command_completer); | |
7081 | ||
c906108c | 7082 | add_com ("rbreak", class_breakpoint, rbreak_command, |
1bedd215 | 7083 | _("Set a breakpoint for all functions matching REGEXP.")); |
c906108c | 7084 | |
717d2f5a | 7085 | add_setshow_enum_cmd ("multiple-symbols", no_class, |
dda83cd7 SM |
7086 | multiple_symbols_modes, &multiple_symbols_mode, |
7087 | _("\ | |
590042fc | 7088 | Set how the debugger handles ambiguities in expressions."), _("\ |
717d2f5a JB |
7089 | Show how the debugger handles ambiguities in expressions."), _("\ |
7090 | Valid values are \"ask\", \"all\", \"cancel\", and the default is \"all\"."), | |
dda83cd7 | 7091 | NULL, NULL, &setlist, &showlist); |
717d2f5a | 7092 | |
c011a4f4 DE |
7093 | add_setshow_boolean_cmd ("basenames-may-differ", class_obscure, |
7094 | &basenames_may_differ, _("\ | |
7095 | Set whether a source file may have multiple base names."), _("\ | |
7096 | Show whether a source file may have multiple base names."), _("\ | |
7097 | (A \"base name\" is the name of a file with the directory part removed.\n\ | |
7098 | Example: The base name of \"/home/user/hello.c\" is \"hello.c\".)\n\ | |
7099 | If set, GDB will canonicalize file names (e.g., expand symlinks)\n\ | |
7100 | before comparing them. Canonicalization is an expensive operation,\n\ | |
7101 | but it allows the same file be known by more than one base name.\n\ | |
7102 | If not set (the default), all source files are assumed to have just\n\ | |
7103 | one base name, and gdb will do file name comparisons more efficiently."), | |
7104 | NULL, NULL, | |
7105 | &setlist, &showlist); | |
7106 | ||
db0fec5c DE |
7107 | add_setshow_zuinteger_cmd ("symtab-create", no_class, &symtab_create_debug, |
7108 | _("Set debugging of symbol table creation."), | |
7109 | _("Show debugging of symbol table creation."), _("\ | |
7110 | When enabled (non-zero), debugging messages are printed when building\n\ | |
7111 | symbol tables. A value of 1 (one) normally provides enough information.\n\ | |
7112 | A value greater than 1 provides more verbose information."), | |
7113 | NULL, | |
7114 | NULL, | |
7115 | &setdebuglist, &showdebuglist); | |
45cfd468 | 7116 | |
cc485e62 DE |
7117 | add_setshow_zuinteger_cmd ("symbol-lookup", no_class, &symbol_lookup_debug, |
7118 | _("\ | |
7119 | Set debugging of symbol lookup."), _("\ | |
7120 | Show debugging of symbol lookup."), _("\ | |
7121 | When enabled (non-zero), symbol lookups are logged."), | |
7122 | NULL, NULL, | |
7123 | &setdebuglist, &showdebuglist); | |
7124 | ||
f57d2163 DE |
7125 | add_setshow_zuinteger_cmd ("symbol-cache-size", no_class, |
7126 | &new_symbol_cache_size, | |
7127 | _("Set the size of the symbol cache."), | |
7128 | _("Show the size of the symbol cache."), _("\ | |
7129 | The size of the symbol cache.\n\ | |
7130 | If zero then the symbol cache is disabled."), | |
7131 | set_symbol_cache_size_handler, NULL, | |
7132 | &maintenance_set_cmdlist, | |
7133 | &maintenance_show_cmdlist); | |
7134 | ||
6109f7a3 LS |
7135 | add_setshow_boolean_cmd ("ignore-prologue-end-flag", no_class, |
7136 | &ignore_prologue_end_flag, | |
7137 | _("Set if the PROLOGUE-END flag is ignored."), | |
7138 | _("Show if the PROLOGUE-END flag is ignored."), | |
7139 | _("\ | |
7140 | The PROLOGUE-END flag from the line-table entries is used to place \ | |
a383ee40 | 7141 | breakpoints past the prologue of functions. Disabling its use forces \ |
6109f7a3 LS |
7142 | the use of prologue scanners."), |
7143 | nullptr, nullptr, | |
7144 | &maintenance_set_cmdlist, | |
7145 | &maintenance_show_cmdlist); | |
7146 | ||
7147 | ||
f57d2163 DE |
7148 | add_cmd ("symbol-cache", class_maintenance, maintenance_print_symbol_cache, |
7149 | _("Dump the symbol cache for each program space."), | |
7150 | &maintenanceprintlist); | |
7151 | ||
7152 | add_cmd ("symbol-cache-statistics", class_maintenance, | |
7153 | maintenance_print_symbol_cache_statistics, | |
7154 | _("Print symbol cache statistics for each program space."), | |
7155 | &maintenanceprintlist); | |
7156 | ||
5e84b7ee SM |
7157 | cmd_list_element *maintenance_flush_symbol_cache_cmd |
7158 | = add_cmd ("symbol-cache", class_maintenance, | |
7159 | maintenance_flush_symbol_cache, | |
7160 | _("Flush the symbol cache for each program space."), | |
7161 | &maintenanceflushlist); | |
7162 | c = add_alias_cmd ("flush-symbol-cache", maintenance_flush_symbol_cache_cmd, | |
50a5f187 AB |
7163 | class_maintenance, 0, &maintenancelist); |
7164 | deprecate_cmd (c, "maintenancelist flush symbol-cache"); | |
f57d2163 | 7165 | |
c90e7d63 | 7166 | gdb::observers::new_objfile.attach (symtab_new_objfile_observer, "symtab"); |
74daa597 SM |
7167 | gdb::observers::all_objfiles_removed.attach (symtab_all_objfiles_removed, |
7168 | "symtab"); | |
c90e7d63 | 7169 | gdb::observers::free_objfile.attach (symtab_free_objfile_observer, "symtab"); |
c906108c | 7170 | } |