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c906108c | 1 | /* Symbol table lookup for the GNU debugger, GDB. |
8926118c | 2 | |
213516ef | 3 | Copyright (C) 1986-2023 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
19 | |
20 | #include "defs.h" | |
1298c32f | 21 | #include "dwarf2/call-site.h" |
c906108c SS |
22 | #include "symtab.h" |
23 | #include "gdbtypes.h" | |
24 | #include "gdbcore.h" | |
25 | #include "frame.h" | |
26 | #include "target.h" | |
27 | #include "value.h" | |
28 | #include "symfile.h" | |
29 | #include "objfiles.h" | |
30 | #include "gdbcmd.h" | |
d322d6d6 | 31 | #include "gdbsupport/gdb_regex.h" |
c906108c SS |
32 | #include "expression.h" |
33 | #include "language.h" | |
34 | #include "demangle.h" | |
35 | #include "inferior.h" | |
0378c332 | 36 | #include "source.h" |
ef0f16cc | 37 | #include "filenames.h" |
1bae87b9 | 38 | #include "objc-lang.h" |
6aecb9c2 | 39 | #include "d-lang.h" |
1f8173e6 | 40 | #include "ada-lang.h" |
a766d390 | 41 | #include "go-lang.h" |
cd6c7346 | 42 | #include "p-lang.h" |
ff013f42 | 43 | #include "addrmap.h" |
529480d0 | 44 | #include "cli/cli-utils.h" |
1ed9f74e | 45 | #include "cli/cli-style.h" |
50a5f187 | 46 | #include "cli/cli-cmds.h" |
cce0e923 | 47 | #include "fnmatch.h" |
2de7ced7 | 48 | #include "hashtab.h" |
12615cba | 49 | #include "typeprint.h" |
2de7ced7 | 50 | |
bf31fd38 | 51 | #include "gdbsupport/gdb_obstack.h" |
fe898f56 | 52 | #include "block.h" |
de4f826b | 53 | #include "dictionary.h" |
c906108c SS |
54 | |
55 | #include <sys/types.h> | |
56 | #include <fcntl.h> | |
53ce3c39 | 57 | #include <sys/stat.h> |
c906108c | 58 | #include <ctype.h> |
015a42b4 | 59 | #include "cp-abi.h" |
71c25dea | 60 | #include "cp-support.h" |
76727919 | 61 | #include "observable.h" |
3a40aaa0 | 62 | #include "solist.h" |
9a044a89 TT |
63 | #include "macrotab.h" |
64 | #include "macroscope.h" | |
c906108c | 65 | |
270140bd | 66 | #include "parser-defs.h" |
ef0b411a | 67 | #include "completer.h" |
5ed8105e | 68 | #include "progspace-and-thread.h" |
6b09f134 | 69 | #include <optional> |
bbf2f4df | 70 | #include "filename-seen-cache.h" |
46a62268 | 71 | #include "arch-utils.h" |
b9c04fb2 | 72 | #include <algorithm> |
8082468f | 73 | #include <string_view> |
268a13a5 | 74 | #include "gdbsupport/pathstuff.h" |
1a6ff1a9 | 75 | #include "gdbsupport/common-utils.h" |
fe6356de | 76 | #include <optional> |
ccefe4c4 | 77 | |
ff6c39cf | 78 | /* Forward declarations for local functions. */ |
c906108c | 79 | |
0b39b52e | 80 | static void rbreak_command (const char *, int); |
c906108c | 81 | |
977a0c16 | 82 | static int find_line_common (const linetable *, int, int *, int); |
c906108c | 83 | |
d12307c1 PMR |
84 | static struct block_symbol |
85 | lookup_symbol_aux (const char *name, | |
de63c46b | 86 | symbol_name_match_type match_type, |
d12307c1 PMR |
87 | const struct block *block, |
88 | const domain_enum domain, | |
89 | enum language language, | |
90 | struct field_of_this_result *); | |
fba7f19c | 91 | |
e4051eeb | 92 | static |
d12307c1 | 93 | struct block_symbol lookup_local_symbol (const char *name, |
de63c46b | 94 | symbol_name_match_type match_type, |
d12307c1 PMR |
95 | const struct block *block, |
96 | const domain_enum domain, | |
97 | enum language language); | |
8155455b | 98 | |
d12307c1 | 99 | static struct block_symbol |
c32e6a04 CB |
100 | lookup_symbol_in_objfile (struct objfile *objfile, |
101 | enum block_enum block_index, | |
fe2a438d | 102 | const char *name, const domain_enum domain); |
c906108c | 103 | |
a49d37f3 SM |
104 | static void set_main_name (program_space *pspace, const char *name, |
105 | language lang); | |
a0a031bc | 106 | |
32ac0d11 TT |
107 | /* Type of the data stored on the program space. */ |
108 | ||
109 | struct main_info | |
110 | { | |
111 | /* Name of "main". */ | |
112 | ||
25eb2931 | 113 | std::string name_of_main; |
32ac0d11 TT |
114 | |
115 | /* Language of "main". */ | |
116 | ||
a32ad8c5 | 117 | enum language language_of_main = language_unknown; |
32ac0d11 TT |
118 | }; |
119 | ||
a32ad8c5 TT |
120 | /* Program space key for finding name and language of "main". */ |
121 | ||
08b8a139 | 122 | static const registry<program_space>::key<main_info> main_progspace_key; |
a32ad8c5 | 123 | |
f57d2163 DE |
124 | /* The default symbol cache size. |
125 | There is no extra cpu cost for large N (except when flushing the cache, | |
126 | which is rare). The value here is just a first attempt. A better default | |
127 | value may be higher or lower. A prime number can make up for a bad hash | |
128 | computation, so that's why the number is what it is. */ | |
129 | #define DEFAULT_SYMBOL_CACHE_SIZE 1021 | |
130 | ||
131 | /* The maximum symbol cache size. | |
132 | There's no method to the decision of what value to use here, other than | |
133 | there's no point in allowing a user typo to make gdb consume all memory. */ | |
134 | #define MAX_SYMBOL_CACHE_SIZE (1024*1024) | |
135 | ||
136 | /* symbol_cache_lookup returns this if a previous lookup failed to find the | |
137 | symbol in any objfile. */ | |
d12307c1 PMR |
138 | #define SYMBOL_LOOKUP_FAILED \ |
139 | ((struct block_symbol) {(struct symbol *) 1, NULL}) | |
140 | #define SYMBOL_LOOKUP_FAILED_P(SIB) (SIB.symbol == (struct symbol *) 1) | |
f57d2163 DE |
141 | |
142 | /* Recording lookups that don't find the symbol is just as important, if not | |
143 | more so, than recording found symbols. */ | |
144 | ||
145 | enum symbol_cache_slot_state | |
146 | { | |
147 | SYMBOL_SLOT_UNUSED, | |
148 | SYMBOL_SLOT_NOT_FOUND, | |
149 | SYMBOL_SLOT_FOUND | |
150 | }; | |
151 | ||
52059ffd TT |
152 | struct symbol_cache_slot |
153 | { | |
154 | enum symbol_cache_slot_state state; | |
155 | ||
156 | /* The objfile that was current when the symbol was looked up. | |
157 | This is only needed for global blocks, but for simplicity's sake | |
158 | we allocate the space for both. If data shows the extra space used | |
159 | for static blocks is a problem, we can split things up then. | |
160 | ||
161 | Global blocks need cache lookup to include the objfile context because | |
162 | we need to account for gdbarch_iterate_over_objfiles_in_search_order | |
163 | which can traverse objfiles in, effectively, any order, depending on | |
164 | the current objfile, thus affecting which symbol is found. Normally, | |
165 | only the current objfile is searched first, and then the rest are | |
166 | searched in recorded order; but putting cache lookup inside | |
167 | gdbarch_iterate_over_objfiles_in_search_order would be awkward. | |
168 | Instead we just make the current objfile part of the context of | |
169 | cache lookup. This means we can record the same symbol multiple times, | |
170 | each with a different "current objfile" that was in effect when the | |
171 | lookup was saved in the cache, but cache space is pretty cheap. */ | |
172 | const struct objfile *objfile_context; | |
173 | ||
174 | union | |
175 | { | |
d12307c1 | 176 | struct block_symbol found; |
52059ffd TT |
177 | struct |
178 | { | |
179 | char *name; | |
180 | domain_enum domain; | |
181 | } not_found; | |
182 | } value; | |
183 | }; | |
184 | ||
82f910ea PW |
185 | /* Clear out SLOT. */ |
186 | ||
187 | static void | |
188 | symbol_cache_clear_slot (struct symbol_cache_slot *slot) | |
189 | { | |
190 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
191 | xfree (slot->value.not_found.name); | |
192 | slot->state = SYMBOL_SLOT_UNUSED; | |
193 | } | |
194 | ||
f57d2163 DE |
195 | /* Symbols don't specify global vs static block. |
196 | So keep them in separate caches. */ | |
197 | ||
198 | struct block_symbol_cache | |
199 | { | |
200 | unsigned int hits; | |
201 | unsigned int misses; | |
202 | unsigned int collisions; | |
203 | ||
204 | /* SYMBOLS is a variable length array of this size. | |
205 | One can imagine that in general one cache (global/static) should be a | |
206 | fraction of the size of the other, but there's no data at the moment | |
207 | on which to decide. */ | |
208 | unsigned int size; | |
209 | ||
52059ffd | 210 | struct symbol_cache_slot symbols[1]; |
f57d2163 DE |
211 | }; |
212 | ||
82f910ea PW |
213 | /* Clear all slots of BSC and free BSC. */ |
214 | ||
215 | static void | |
216 | destroy_block_symbol_cache (struct block_symbol_cache *bsc) | |
217 | { | |
218 | if (bsc != nullptr) | |
219 | { | |
220 | for (unsigned int i = 0; i < bsc->size; i++) | |
221 | symbol_cache_clear_slot (&bsc->symbols[i]); | |
222 | xfree (bsc); | |
223 | } | |
224 | } | |
225 | ||
f57d2163 DE |
226 | /* The symbol cache. |
227 | ||
228 | Searching for symbols in the static and global blocks over multiple objfiles | |
229 | again and again can be slow, as can searching very big objfiles. This is a | |
230 | simple cache to improve symbol lookup performance, which is critical to | |
231 | overall gdb performance. | |
232 | ||
233 | Symbols are hashed on the name, its domain, and block. | |
234 | They are also hashed on their objfile for objfile-specific lookups. */ | |
235 | ||
236 | struct symbol_cache | |
237 | { | |
3017b94d TT |
238 | symbol_cache () = default; |
239 | ||
240 | ~symbol_cache () | |
241 | { | |
82f910ea PW |
242 | destroy_block_symbol_cache (global_symbols); |
243 | destroy_block_symbol_cache (static_symbols); | |
3017b94d TT |
244 | } |
245 | ||
246 | struct block_symbol_cache *global_symbols = nullptr; | |
247 | struct block_symbol_cache *static_symbols = nullptr; | |
f57d2163 DE |
248 | }; |
249 | ||
3017b94d TT |
250 | /* Program space key for finding its symbol cache. */ |
251 | ||
08b8a139 | 252 | static const registry<program_space>::key<symbol_cache> symbol_cache_key; |
3017b94d | 253 | |
45cfd468 | 254 | /* When non-zero, print debugging messages related to symtab creation. */ |
db0fec5c | 255 | unsigned int symtab_create_debug = 0; |
45cfd468 | 256 | |
cc485e62 DE |
257 | /* When non-zero, print debugging messages related to symbol lookup. */ |
258 | unsigned int symbol_lookup_debug = 0; | |
259 | ||
f57d2163 DE |
260 | /* The size of the cache is staged here. */ |
261 | static unsigned int new_symbol_cache_size = DEFAULT_SYMBOL_CACHE_SIZE; | |
262 | ||
263 | /* The current value of the symbol cache size. | |
264 | This is saved so that if the user enters a value too big we can restore | |
265 | the original value from here. */ | |
266 | static unsigned int symbol_cache_size = DEFAULT_SYMBOL_CACHE_SIZE; | |
267 | ||
491144b5 | 268 | /* True if a file may be known by two different basenames. |
c011a4f4 DE |
269 | This is the uncommon case, and significantly slows down gdb. |
270 | Default set to "off" to not slow down the common case. */ | |
491144b5 | 271 | bool basenames_may_differ = false; |
c011a4f4 | 272 | |
717d2f5a JB |
273 | /* Allow the user to configure the debugger behavior with respect |
274 | to multiple-choice menus when more than one symbol matches during | |
275 | a symbol lookup. */ | |
276 | ||
7fc830e2 MK |
277 | const char multiple_symbols_ask[] = "ask"; |
278 | const char multiple_symbols_all[] = "all"; | |
279 | const char multiple_symbols_cancel[] = "cancel"; | |
40478521 | 280 | static const char *const multiple_symbols_modes[] = |
717d2f5a JB |
281 | { |
282 | multiple_symbols_ask, | |
283 | multiple_symbols_all, | |
284 | multiple_symbols_cancel, | |
285 | NULL | |
286 | }; | |
287 | static const char *multiple_symbols_mode = multiple_symbols_all; | |
288 | ||
6109f7a3 LS |
289 | /* When TRUE, ignore the prologue-end flag in linetable_entry when searching |
290 | for the SAL past a function prologue. */ | |
291 | static bool ignore_prologue_end_flag = false; | |
292 | ||
717d2f5a JB |
293 | /* Read-only accessor to AUTO_SELECT_MODE. */ |
294 | ||
295 | const char * | |
296 | multiple_symbols_select_mode (void) | |
297 | { | |
298 | return multiple_symbols_mode; | |
299 | } | |
300 | ||
20c681d1 DE |
301 | /* Return the name of a domain_enum. */ |
302 | ||
303 | const char * | |
304 | domain_name (domain_enum e) | |
305 | { | |
306 | switch (e) | |
307 | { | |
308 | case UNDEF_DOMAIN: return "UNDEF_DOMAIN"; | |
309 | case VAR_DOMAIN: return "VAR_DOMAIN"; | |
310 | case STRUCT_DOMAIN: return "STRUCT_DOMAIN"; | |
540feddf | 311 | case MODULE_DOMAIN: return "MODULE_DOMAIN"; |
20c681d1 DE |
312 | case LABEL_DOMAIN: return "LABEL_DOMAIN"; |
313 | case COMMON_BLOCK_DOMAIN: return "COMMON_BLOCK_DOMAIN"; | |
314 | default: gdb_assert_not_reached ("bad domain_enum"); | |
315 | } | |
316 | } | |
317 | ||
318 | /* Return the name of a search_domain . */ | |
319 | ||
320 | const char * | |
321 | search_domain_name (enum search_domain e) | |
322 | { | |
323 | switch (e) | |
324 | { | |
325 | case VARIABLES_DOMAIN: return "VARIABLES_DOMAIN"; | |
326 | case FUNCTIONS_DOMAIN: return "FUNCTIONS_DOMAIN"; | |
327 | case TYPES_DOMAIN: return "TYPES_DOMAIN"; | |
59c35742 | 328 | case MODULES_DOMAIN: return "MODULES_DOMAIN"; |
20c681d1 DE |
329 | case ALL_DOMAIN: return "ALL_DOMAIN"; |
330 | default: gdb_assert_not_reached ("bad search_domain"); | |
331 | } | |
332 | } | |
333 | ||
43f3e411 | 334 | /* See symtab.h. */ |
db0fec5c | 335 | |
1acc9dca TT |
336 | CORE_ADDR |
337 | linetable_entry::pc (const struct objfile *objfile) const | |
338 | { | |
48e0f38c | 339 | return CORE_ADDR (m_pc) + objfile->text_section_offset (); |
1acc9dca TT |
340 | } |
341 | ||
342 | /* See symtab.h. */ | |
343 | ||
b625c770 SM |
344 | call_site * |
345 | compunit_symtab::find_call_site (CORE_ADDR pc) const | |
346 | { | |
347 | if (m_call_site_htab == nullptr) | |
348 | return nullptr; | |
349 | ||
d401e7bf | 350 | CORE_ADDR delta = this->objfile ()->text_section_offset (); |
1e73d09f | 351 | unrelocated_addr unrelocated_pc = (unrelocated_addr) (pc - delta); |
b0b8879e SM |
352 | |
353 | struct call_site call_site_local (unrelocated_pc, nullptr, nullptr); | |
0dd8295d TV |
354 | void **slot |
355 | = htab_find_slot (m_call_site_htab, &call_site_local, NO_INSERT); | |
9df25c34 TT |
356 | if (slot != nullptr) |
357 | return (call_site *) *slot; | |
358 | ||
359 | /* See if the arch knows another PC we should try. On some | |
360 | platforms, GCC emits a DWARF call site that is offset from the | |
361 | actual return location. */ | |
362 | struct gdbarch *arch = objfile ()->arch (); | |
363 | CORE_ADDR new_pc = gdbarch_update_call_site_pc (arch, pc); | |
364 | if (pc == new_pc) | |
365 | return nullptr; | |
366 | ||
1e73d09f TT |
367 | unrelocated_pc = (unrelocated_addr) (new_pc - delta); |
368 | call_site new_call_site_local (unrelocated_pc, nullptr, nullptr); | |
9df25c34 | 369 | slot = htab_find_slot (m_call_site_htab, &new_call_site_local, NO_INSERT); |
b625c770 SM |
370 | if (slot == nullptr) |
371 | return nullptr; | |
372 | ||
373 | return (call_site *) *slot; | |
374 | } | |
375 | ||
376 | /* See symtab.h. */ | |
377 | ||
378 | void | |
379 | compunit_symtab::set_call_site_htab (htab_t call_site_htab) | |
380 | { | |
381 | gdb_assert (m_call_site_htab == nullptr); | |
382 | m_call_site_htab = call_site_htab; | |
383 | } | |
384 | ||
385 | /* See symtab.h. */ | |
386 | ||
36664835 SM |
387 | void |
388 | compunit_symtab::set_primary_filetab (symtab *primary_filetab) | |
389 | { | |
390 | symtab *prev_filetab = nullptr; | |
391 | ||
392 | /* Move PRIMARY_FILETAB to the head of the filetab list. */ | |
102cc235 | 393 | for (symtab *filetab : this->filetabs ()) |
36664835 SM |
394 | { |
395 | if (filetab == primary_filetab) | |
396 | { | |
397 | if (prev_filetab != nullptr) | |
398 | { | |
399 | prev_filetab->next = primary_filetab->next; | |
102cc235 SM |
400 | primary_filetab->next = m_filetabs; |
401 | m_filetabs = primary_filetab; | |
36664835 SM |
402 | } |
403 | ||
404 | break; | |
405 | } | |
406 | ||
407 | prev_filetab = filetab; | |
408 | } | |
409 | ||
102cc235 | 410 | gdb_assert (primary_filetab == m_filetabs); |
36664835 SM |
411 | } |
412 | ||
413 | /* See symtab.h. */ | |
414 | ||
43f3e411 | 415 | struct symtab * |
0b17a4f7 | 416 | compunit_symtab::primary_filetab () const |
db0fec5c | 417 | { |
102cc235 | 418 | gdb_assert (m_filetabs != nullptr); |
db0fec5c | 419 | |
43f3e411 | 420 | /* The primary file symtab is the first one in the list. */ |
102cc235 | 421 | return m_filetabs; |
43f3e411 DE |
422 | } |
423 | ||
424 | /* See symtab.h. */ | |
425 | ||
426 | enum language | |
425d5e76 | 427 | compunit_symtab::language () const |
43f3e411 | 428 | { |
425d5e76 | 429 | struct symtab *symtab = primary_filetab (); |
43f3e411 | 430 | |
425d5e76 TT |
431 | /* The language of the compunit symtab is the language of its |
432 | primary source file. */ | |
1ee2e9f9 | 433 | return symtab->language (); |
db0fec5c DE |
434 | } |
435 | ||
4aeddc50 SM |
436 | /* The relocated address of the minimal symbol, using the section |
437 | offsets from OBJFILE. */ | |
438 | ||
439 | CORE_ADDR | |
440 | minimal_symbol::value_address (objfile *objfile) const | |
441 | { | |
62669649 | 442 | if (this->maybe_copied (objfile)) |
23e6f781 | 443 | return this->get_maybe_copied_address (objfile); |
4aeddc50 | 444 | else |
93d50cd8 | 445 | return (CORE_ADDR (this->unrelocated_address ()) |
4aeddc50 SM |
446 | + objfile->section_offsets[this->section_index ()]); |
447 | } | |
448 | ||
1ed9f74e PW |
449 | /* See symtab.h. */ |
450 | ||
451 | bool | |
452 | minimal_symbol::data_p () const | |
453 | { | |
60f62e2b SM |
454 | return m_type == mst_data |
455 | || m_type == mst_bss | |
456 | || m_type == mst_abs | |
457 | || m_type == mst_file_data | |
458 | || m_type == mst_file_bss; | |
1ed9f74e PW |
459 | } |
460 | ||
461 | /* See symtab.h. */ | |
462 | ||
463 | bool | |
464 | minimal_symbol::text_p () const | |
465 | { | |
60f62e2b SM |
466 | return m_type == mst_text |
467 | || m_type == mst_text_gnu_ifunc | |
468 | || m_type == mst_data_gnu_ifunc | |
469 | || m_type == mst_slot_got_plt | |
470 | || m_type == mst_solib_trampoline | |
471 | || m_type == mst_file_text; | |
1ed9f74e PW |
472 | } |
473 | ||
62669649 KB |
474 | /* See symtab.h. */ |
475 | ||
476 | bool | |
477 | minimal_symbol::maybe_copied (objfile *objfile) const | |
478 | { | |
479 | return (objfile->object_format_has_copy_relocs | |
480 | && (objfile->flags & OBJF_MAINLINE) == 0 | |
481 | && (m_type == mst_data || m_type == mst_bss)); | |
482 | } | |
483 | ||
4aac40c8 TT |
484 | /* See whether FILENAME matches SEARCH_NAME using the rule that we |
485 | advertise to the user. (The manual's description of linespecs | |
af529f8f JK |
486 | describes what we advertise). Returns true if they match, false |
487 | otherwise. */ | |
4aac40c8 | 488 | |
ececd218 | 489 | bool |
b57a636e | 490 | compare_filenames_for_search (const char *filename, const char *search_name) |
4aac40c8 TT |
491 | { |
492 | int len = strlen (filename); | |
b57a636e | 493 | size_t search_len = strlen (search_name); |
4aac40c8 TT |
494 | |
495 | if (len < search_len) | |
ececd218 | 496 | return false; |
4aac40c8 TT |
497 | |
498 | /* The tail of FILENAME must match. */ | |
499 | if (FILENAME_CMP (filename + len - search_len, search_name) != 0) | |
ececd218 | 500 | return false; |
4aac40c8 TT |
501 | |
502 | /* Either the names must completely match, or the character | |
503 | preceding the trailing SEARCH_NAME segment of FILENAME must be a | |
d84fca2c JK |
504 | directory separator. |
505 | ||
af529f8f JK |
506 | The check !IS_ABSOLUTE_PATH ensures SEARCH_NAME "/dir/file.c" |
507 | cannot match FILENAME "/path//dir/file.c" - as user has requested | |
508 | absolute path. The sama applies for "c:\file.c" possibly | |
509 | incorrectly hypothetically matching "d:\dir\c:\file.c". | |
510 | ||
d84fca2c JK |
511 | The HAS_DRIVE_SPEC purpose is to make FILENAME "c:file.c" |
512 | compatible with SEARCH_NAME "file.c". In such case a compiler had | |
513 | to put the "c:file.c" name into debug info. Such compatibility | |
514 | works only on GDB built for DOS host. */ | |
4aac40c8 | 515 | return (len == search_len |
af529f8f JK |
516 | || (!IS_ABSOLUTE_PATH (search_name) |
517 | && IS_DIR_SEPARATOR (filename[len - search_len - 1])) | |
4aac40c8 TT |
518 | || (HAS_DRIVE_SPEC (filename) |
519 | && STRIP_DRIVE_SPEC (filename) == &filename[len - search_len])); | |
520 | } | |
521 | ||
cce0e923 DE |
522 | /* Same as compare_filenames_for_search, but for glob-style patterns. |
523 | Heads up on the order of the arguments. They match the order of | |
524 | compare_filenames_for_search, but it's the opposite of the order of | |
525 | arguments to gdb_filename_fnmatch. */ | |
526 | ||
ececd218 | 527 | bool |
cce0e923 DE |
528 | compare_glob_filenames_for_search (const char *filename, |
529 | const char *search_name) | |
530 | { | |
531 | /* We rely on the property of glob-style patterns with FNM_FILE_NAME that | |
532 | all /s have to be explicitly specified. */ | |
533 | int file_path_elements = count_path_elements (filename); | |
534 | int search_path_elements = count_path_elements (search_name); | |
535 | ||
536 | if (search_path_elements > file_path_elements) | |
ececd218 | 537 | return false; |
cce0e923 DE |
538 | |
539 | if (IS_ABSOLUTE_PATH (search_name)) | |
540 | { | |
541 | return (search_path_elements == file_path_elements | |
542 | && gdb_filename_fnmatch (search_name, filename, | |
543 | FNM_FILE_NAME | FNM_NOESCAPE) == 0); | |
544 | } | |
545 | ||
546 | { | |
547 | const char *file_to_compare | |
548 | = strip_leading_path_elements (filename, | |
549 | file_path_elements - search_path_elements); | |
550 | ||
551 | return gdb_filename_fnmatch (search_name, file_to_compare, | |
552 | FNM_FILE_NAME | FNM_NOESCAPE) == 0; | |
553 | } | |
554 | } | |
555 | ||
f8eba3c6 TT |
556 | /* Check for a symtab of a specific name by searching some symtabs. |
557 | This is a helper function for callbacks of iterate_over_symtabs. | |
c906108c | 558 | |
b2d23133 DE |
559 | If NAME is not absolute, then REAL_PATH is NULL |
560 | If NAME is absolute, then REAL_PATH is the gdb_realpath form of NAME. | |
561 | ||
14bc53a8 PA |
562 | The return value, NAME, REAL_PATH and CALLBACK are identical to the |
563 | `map_symtabs_matching_filename' method of quick_symbol_functions. | |
f8eba3c6 | 564 | |
43f3e411 DE |
565 | FIRST and AFTER_LAST indicate the range of compunit symtabs to search. |
566 | Each symtab within the specified compunit symtab is also searched. | |
567 | AFTER_LAST is one past the last compunit symtab to search; NULL means to | |
f8eba3c6 TT |
568 | search until the end of the list. */ |
569 | ||
14bc53a8 | 570 | bool |
f8eba3c6 | 571 | iterate_over_some_symtabs (const char *name, |
f8eba3c6 | 572 | const char *real_path, |
43f3e411 | 573 | struct compunit_symtab *first, |
14bc53a8 PA |
574 | struct compunit_symtab *after_last, |
575 | gdb::function_view<bool (symtab *)> callback) | |
c906108c | 576 | { |
43f3e411 | 577 | struct compunit_symtab *cust; |
c011a4f4 | 578 | const char* base_name = lbasename (name); |
1f84b619 | 579 | |
43f3e411 | 580 | for (cust = first; cust != NULL && cust != after_last; cust = cust->next) |
f079a2e5 | 581 | { |
7023b8d8 TV |
582 | /* Skip included compunits. */ |
583 | if (cust->user != nullptr) | |
584 | continue; | |
585 | ||
102cc235 | 586 | for (symtab *s : cust->filetabs ()) |
a94e8645 | 587 | { |
43f3e411 DE |
588 | if (compare_filenames_for_search (s->filename, name)) |
589 | { | |
14bc53a8 PA |
590 | if (callback (s)) |
591 | return true; | |
43f3e411 DE |
592 | continue; |
593 | } | |
a94e8645 | 594 | |
43f3e411 DE |
595 | /* Before we invoke realpath, which can get expensive when many |
596 | files are involved, do a quick comparison of the basenames. */ | |
597 | if (! basenames_may_differ | |
598 | && FILENAME_CMP (base_name, lbasename (s->filename)) != 0) | |
599 | continue; | |
a94e8645 | 600 | |
43f3e411 | 601 | if (compare_filenames_for_search (symtab_to_fullname (s), name)) |
a94e8645 | 602 | { |
14bc53a8 PA |
603 | if (callback (s)) |
604 | return true; | |
a94e8645 DE |
605 | continue; |
606 | } | |
43f3e411 DE |
607 | |
608 | /* If the user gave us an absolute path, try to find the file in | |
609 | this symtab and use its absolute path. */ | |
610 | if (real_path != NULL) | |
611 | { | |
612 | const char *fullname = symtab_to_fullname (s); | |
613 | ||
614 | gdb_assert (IS_ABSOLUTE_PATH (real_path)); | |
615 | gdb_assert (IS_ABSOLUTE_PATH (name)); | |
7e785608 TV |
616 | gdb::unique_xmalloc_ptr<char> fullname_real_path |
617 | = gdb_realpath (fullname); | |
618 | fullname = fullname_real_path.get (); | |
43f3e411 DE |
619 | if (FILENAME_CMP (real_path, fullname) == 0) |
620 | { | |
14bc53a8 PA |
621 | if (callback (s)) |
622 | return true; | |
43f3e411 DE |
623 | continue; |
624 | } | |
625 | } | |
a94e8645 | 626 | } |
f8eba3c6 | 627 | } |
58d370e0 | 628 | |
14bc53a8 | 629 | return false; |
f8eba3c6 TT |
630 | } |
631 | ||
632 | /* Check for a symtab of a specific name; first in symtabs, then in | |
633 | psymtabs. *If* there is no '/' in the name, a match after a '/' | |
634 | in the symtab filename will also work. | |
635 | ||
14bc53a8 PA |
636 | Calls CALLBACK with each symtab that is found. If CALLBACK returns |
637 | true, the search stops. */ | |
f8eba3c6 TT |
638 | |
639 | void | |
640 | iterate_over_symtabs (const char *name, | |
14bc53a8 | 641 | gdb::function_view<bool (symtab *)> callback) |
f8eba3c6 | 642 | { |
14bc53a8 | 643 | gdb::unique_xmalloc_ptr<char> real_path; |
f8eba3c6 TT |
644 | |
645 | /* Here we are interested in canonicalizing an absolute path, not | |
646 | absolutizing a relative path. */ | |
647 | if (IS_ABSOLUTE_PATH (name)) | |
648 | { | |
14278e1f | 649 | real_path = gdb_realpath (name); |
14bc53a8 | 650 | gdb_assert (IS_ABSOLUTE_PATH (real_path.get ())); |
f8eba3c6 TT |
651 | } |
652 | ||
2030c079 | 653 | for (objfile *objfile : current_program_space->objfiles ()) |
14bc53a8 PA |
654 | { |
655 | if (iterate_over_some_symtabs (name, real_path.get (), | |
656 | objfile->compunit_symtabs, NULL, | |
657 | callback)) | |
f8eba3c6 | 658 | return; |
14bc53a8 | 659 | } |
f8eba3c6 | 660 | |
c906108c SS |
661 | /* Same search rules as above apply here, but now we look thru the |
662 | psymtabs. */ | |
663 | ||
2030c079 | 664 | for (objfile *objfile : current_program_space->objfiles ()) |
14bc53a8 | 665 | { |
4d080b46 TT |
666 | if (objfile->map_symtabs_matching_filename (name, real_path.get (), |
667 | callback)) | |
f8eba3c6 | 668 | return; |
14bc53a8 | 669 | } |
c906108c | 670 | } |
f8eba3c6 TT |
671 | |
672 | /* A wrapper for iterate_over_symtabs that returns the first matching | |
673 | symtab, or NULL. */ | |
674 | ||
675 | struct symtab * | |
676 | lookup_symtab (const char *name) | |
677 | { | |
678 | struct symtab *result = NULL; | |
679 | ||
14bc53a8 PA |
680 | iterate_over_symtabs (name, [&] (symtab *symtab) |
681 | { | |
682 | result = symtab; | |
683 | return true; | |
684 | }); | |
685 | ||
f8eba3c6 TT |
686 | return result; |
687 | } | |
688 | ||
c906108c SS |
689 | \f |
690 | /* Mangle a GDB method stub type. This actually reassembles the pieces of the | |
691 | full method name, which consist of the class name (from T), the unadorned | |
692 | method name from METHOD_ID, and the signature for the specific overload, | |
c378eb4e | 693 | specified by SIGNATURE_ID. Note that this function is g++ specific. */ |
c906108c SS |
694 | |
695 | char * | |
fba45db2 | 696 | gdb_mangle_name (struct type *type, int method_id, int signature_id) |
c906108c SS |
697 | { |
698 | int mangled_name_len; | |
699 | char *mangled_name; | |
700 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
701 | struct fn_field *method = &f[signature_id]; | |
0d5cff50 | 702 | const char *field_name = TYPE_FN_FIELDLIST_NAME (type, method_id); |
1d06ead6 | 703 | const char *physname = TYPE_FN_FIELD_PHYSNAME (f, signature_id); |
7d93a1e0 | 704 | const char *newname = type->name (); |
c906108c SS |
705 | |
706 | /* Does the form of physname indicate that it is the full mangled name | |
707 | of a constructor (not just the args)? */ | |
708 | int is_full_physname_constructor; | |
709 | ||
710 | int is_constructor; | |
015a42b4 | 711 | int is_destructor = is_destructor_name (physname); |
c906108c | 712 | /* Need a new type prefix. */ |
e6a959d6 PA |
713 | const char *const_prefix = method->is_const ? "C" : ""; |
714 | const char *volatile_prefix = method->is_volatile ? "V" : ""; | |
c906108c SS |
715 | char buf[20]; |
716 | int len = (newname == NULL ? 0 : strlen (newname)); | |
717 | ||
43630227 PS |
718 | /* Nothing to do if physname already contains a fully mangled v3 abi name |
719 | or an operator name. */ | |
720 | if ((physname[0] == '_' && physname[1] == 'Z') | |
721 | || is_operator_name (field_name)) | |
235d1e03 EZ |
722 | return xstrdup (physname); |
723 | ||
015a42b4 | 724 | is_full_physname_constructor = is_constructor_name (physname); |
c906108c | 725 | |
3e43a32a MS |
726 | is_constructor = is_full_physname_constructor |
727 | || (newname && strcmp (field_name, newname) == 0); | |
c906108c SS |
728 | |
729 | if (!is_destructor) | |
61012eef | 730 | is_destructor = (startswith (physname, "__dt")); |
c906108c SS |
731 | |
732 | if (is_destructor || is_full_physname_constructor) | |
733 | { | |
c5aa993b JM |
734 | mangled_name = (char *) xmalloc (strlen (physname) + 1); |
735 | strcpy (mangled_name, physname); | |
c906108c SS |
736 | return mangled_name; |
737 | } | |
738 | ||
739 | if (len == 0) | |
740 | { | |
8c042590 | 741 | xsnprintf (buf, sizeof (buf), "__%s%s", const_prefix, volatile_prefix); |
c906108c SS |
742 | } |
743 | else if (physname[0] == 't' || physname[0] == 'Q') | |
744 | { | |
745 | /* The physname for template and qualified methods already includes | |
dda83cd7 | 746 | the class name. */ |
8c042590 | 747 | xsnprintf (buf, sizeof (buf), "__%s%s", const_prefix, volatile_prefix); |
c906108c SS |
748 | newname = NULL; |
749 | len = 0; | |
750 | } | |
751 | else | |
752 | { | |
8c042590 PM |
753 | xsnprintf (buf, sizeof (buf), "__%s%s%d", const_prefix, |
754 | volatile_prefix, len); | |
c906108c SS |
755 | } |
756 | mangled_name_len = ((is_constructor ? 0 : strlen (field_name)) | |
235d1e03 | 757 | + strlen (buf) + len + strlen (physname) + 1); |
c906108c | 758 | |
433759f7 MS |
759 | mangled_name = (char *) xmalloc (mangled_name_len); |
760 | if (is_constructor) | |
761 | mangled_name[0] = '\0'; | |
762 | else | |
763 | strcpy (mangled_name, field_name); | |
764 | ||
c906108c SS |
765 | strcat (mangled_name, buf); |
766 | /* If the class doesn't have a name, i.e. newname NULL, then we just | |
767 | mangle it using 0 for the length of the class. Thus it gets mangled | |
c378eb4e | 768 | as something starting with `::' rather than `classname::'. */ |
c906108c SS |
769 | if (newname != NULL) |
770 | strcat (mangled_name, newname); | |
771 | ||
772 | strcat (mangled_name, physname); | |
773 | return (mangled_name); | |
774 | } | |
12af6855 | 775 | |
ff985671 | 776 | /* See symtab.h. */ |
eca864fe | 777 | |
b250c185 | 778 | void |
ff985671 TT |
779 | general_symbol_info::set_demangled_name (const char *name, |
780 | struct obstack *obstack) | |
b250c185 | 781 | { |
ff985671 | 782 | if (language () == language_ada) |
f85f34ed TT |
783 | { |
784 | if (name == NULL) | |
785 | { | |
ff985671 TT |
786 | ada_mangled = 0; |
787 | language_specific.obstack = obstack; | |
f85f34ed TT |
788 | } |
789 | else | |
790 | { | |
ff985671 TT |
791 | ada_mangled = 1; |
792 | language_specific.demangled_name = name; | |
f85f34ed TT |
793 | } |
794 | } | |
29df156d | 795 | else |
ff985671 | 796 | language_specific.demangled_name = name; |
b250c185 SW |
797 | } |
798 | ||
12af6855 | 799 | \f |
89aad1f9 | 800 | /* Initialize the language dependent portion of a symbol |
c378eb4e | 801 | depending upon the language for the symbol. */ |
eca864fe | 802 | |
89aad1f9 | 803 | void |
d3ecddab CB |
804 | general_symbol_info::set_language (enum language language, |
805 | struct obstack *obstack) | |
89aad1f9 | 806 | { |
d3ecddab | 807 | m_language = language; |
c1b5c1eb CB |
808 | if (language == language_cplus |
809 | || language == language_d | |
810 | || language == language_go | |
811 | || language == language_objc | |
812 | || language == language_fortran) | |
89aad1f9 | 813 | { |
ff985671 | 814 | set_demangled_name (NULL, obstack); |
f85f34ed | 815 | } |
c1b5c1eb | 816 | else if (language == language_ada) |
f85f34ed | 817 | { |
d3ecddab CB |
818 | gdb_assert (ada_mangled == 0); |
819 | language_specific.obstack = obstack; | |
89aad1f9 | 820 | } |
89aad1f9 EZ |
821 | else |
822 | { | |
d3ecddab | 823 | memset (&language_specific, 0, sizeof (language_specific)); |
89aad1f9 EZ |
824 | } |
825 | } | |
826 | ||
2de7ced7 DJ |
827 | /* Functions to initialize a symbol's mangled name. */ |
828 | ||
04a679b8 TT |
829 | /* Objects of this type are stored in the demangled name hash table. */ |
830 | struct demangled_name_entry | |
831 | { | |
8082468f | 832 | demangled_name_entry (std::string_view mangled_name) |
3a494279 CB |
833 | : mangled (mangled_name) {} |
834 | ||
8082468f | 835 | std::string_view mangled; |
403772ef | 836 | enum language language; |
5396ae17 | 837 | gdb::unique_xmalloc_ptr<char> demangled; |
04a679b8 TT |
838 | }; |
839 | ||
840 | /* Hash function for the demangled name hash. */ | |
eca864fe | 841 | |
04a679b8 TT |
842 | static hashval_t |
843 | hash_demangled_name_entry (const void *data) | |
844 | { | |
19ba03f4 SM |
845 | const struct demangled_name_entry *e |
846 | = (const struct demangled_name_entry *) data; | |
433759f7 | 847 | |
1a8605a8 | 848 | return gdb::string_view_hash () (e->mangled); |
04a679b8 TT |
849 | } |
850 | ||
851 | /* Equality function for the demangled name hash. */ | |
eca864fe | 852 | |
04a679b8 TT |
853 | static int |
854 | eq_demangled_name_entry (const void *a, const void *b) | |
855 | { | |
19ba03f4 SM |
856 | const struct demangled_name_entry *da |
857 | = (const struct demangled_name_entry *) a; | |
858 | const struct demangled_name_entry *db | |
859 | = (const struct demangled_name_entry *) b; | |
433759f7 | 860 | |
7bb43059 | 861 | return da->mangled == db->mangled; |
04a679b8 TT |
862 | } |
863 | ||
3a494279 CB |
864 | static void |
865 | free_demangled_name_entry (void *data) | |
866 | { | |
867 | struct demangled_name_entry *e | |
868 | = (struct demangled_name_entry *) data; | |
869 | ||
870 | e->~demangled_name_entry(); | |
871 | } | |
872 | ||
2de7ced7 DJ |
873 | /* Create the hash table used for demangled names. Each hash entry is |
874 | a pair of strings; one for the mangled name and one for the demangled | |
875 | name. The entry is hashed via just the mangled name. */ | |
876 | ||
877 | static void | |
0f14768a | 878 | create_demangled_names_hash (struct objfile_per_bfd_storage *per_bfd) |
2de7ced7 DJ |
879 | { |
880 | /* Choose 256 as the starting size of the hash table, somewhat arbitrarily. | |
9af17804 | 881 | The hash table code will round this up to the next prime number. |
2de7ced7 | 882 | Choosing a much larger table size wastes memory, and saves only about |
f8bab2d6 CB |
883 | 1% in symbol reading. However, if the minsym count is already |
884 | initialized (e.g. because symbol name setting was deferred to | |
885 | a background thread) we can initialize the hashtable with a count | |
886 | based on that, because we will almost certainly have at least that | |
887 | many entries. If we have a nonzero number but less than 256, | |
888 | we still stay with 256 to have some space for psymbols, etc. */ | |
889 | ||
890 | /* htab will expand the table when it is 3/4th full, so we account for that | |
891 | here. +2 to round up. */ | |
892 | int minsym_based_count = (per_bfd->minimal_symbol_count + 2) / 3 * 4; | |
893 | int count = std::max (per_bfd->minimal_symbol_count, minsym_based_count); | |
2de7ced7 | 894 | |
db92718b | 895 | per_bfd->demangled_names_hash.reset (htab_create_alloc |
f8bab2d6 | 896 | (count, hash_demangled_name_entry, eq_demangled_name_entry, |
3a494279 | 897 | free_demangled_name_entry, xcalloc, xfree)); |
2de7ced7 | 898 | } |
12af6855 | 899 | |
d55c9a68 | 900 | /* See symtab.h */ |
12af6855 | 901 | |
3456e70c | 902 | gdb::unique_xmalloc_ptr<char> |
2de7ced7 DJ |
903 | symbol_find_demangled_name (struct general_symbol_info *gsymbol, |
904 | const char *mangled) | |
12af6855 | 905 | { |
3456e70c | 906 | gdb::unique_xmalloc_ptr<char> demangled; |
8b302db8 | 907 | int i; |
12af6855 | 908 | |
129bce36 | 909 | if (gsymbol->language () != language_unknown) |
1bae87b9 | 910 | { |
c1b5c1eb | 911 | const struct language_defn *lang = language_def (gsymbol->language ()); |
8b302db8 | 912 | |
6f827019 | 913 | lang->sniff_from_mangled_name (mangled, &demangled); |
8b302db8 | 914 | return demangled; |
6aecb9c2 | 915 | } |
8b302db8 TT |
916 | |
917 | for (i = language_unknown; i < nr_languages; ++i) | |
a766d390 | 918 | { |
8b302db8 TT |
919 | enum language l = (enum language) i; |
920 | const struct language_defn *lang = language_def (l); | |
921 | ||
6f827019 | 922 | if (lang->sniff_from_mangled_name (mangled, &demangled)) |
a766d390 | 923 | { |
c1b5c1eb | 924 | gsymbol->m_language = l; |
a766d390 DE |
925 | return demangled; |
926 | } | |
927 | } | |
928 | ||
2de7ced7 DJ |
929 | return NULL; |
930 | } | |
931 | ||
980cae7a | 932 | /* Set both the mangled and demangled (if any) names for GSYMBOL based |
04a679b8 TT |
933 | on LINKAGE_NAME and LEN. Ordinarily, NAME is copied onto the |
934 | objfile's obstack; but if COPY_NAME is 0 and if NAME is | |
935 | NUL-terminated, then this function assumes that NAME is already | |
936 | correctly saved (either permanently or with a lifetime tied to the | |
937 | objfile), and it will not be copied. | |
938 | ||
939 | The hash table corresponding to OBJFILE is used, and the memory | |
84a1243b | 940 | comes from the per-BFD storage_obstack. LINKAGE_NAME is copied, |
04a679b8 | 941 | so the pointer can be discarded after calling this function. */ |
2de7ced7 DJ |
942 | |
943 | void | |
8082468f | 944 | general_symbol_info::compute_and_set_names (std::string_view linkage_name, |
4d4eaa30 CB |
945 | bool copy_name, |
946 | objfile_per_bfd_storage *per_bfd, | |
6b09f134 | 947 | std::optional<hashval_t> hash) |
2de7ced7 | 948 | { |
04a679b8 | 949 | struct demangled_name_entry **slot; |
2de7ced7 | 950 | |
4d4eaa30 | 951 | if (language () == language_ada) |
b06ead72 JB |
952 | { |
953 | /* In Ada, we do the symbol lookups using the mangled name, so | |
dda83cd7 | 954 | we can save some space by not storing the demangled name. */ |
92174eea | 955 | if (!copy_name) |
4d4eaa30 | 956 | m_name = linkage_name.data (); |
04a679b8 | 957 | else |
869d8950 TT |
958 | m_name = obstack_strndup (&per_bfd->storage_obstack, |
959 | linkage_name.data (), | |
960 | linkage_name.length ()); | |
ff985671 | 961 | set_demangled_name (NULL, &per_bfd->storage_obstack); |
b06ead72 JB |
962 | |
963 | return; | |
964 | } | |
965 | ||
84a1243b | 966 | if (per_bfd->demangled_names_hash == NULL) |
0f14768a | 967 | create_demangled_names_hash (per_bfd); |
04a679b8 | 968 | |
31edb802 | 969 | struct demangled_name_entry entry (linkage_name); |
e76b2246 CB |
970 | if (!hash.has_value ()) |
971 | hash = hash_demangled_name_entry (&entry); | |
04a679b8 | 972 | slot = ((struct demangled_name_entry **) |
dda83cd7 | 973 | htab_find_slot_with_hash (per_bfd->demangled_names_hash.get (), |
e76b2246 | 974 | &entry, *hash, INSERT)); |
2de7ced7 | 975 | |
57d75002 CB |
976 | /* The const_cast is safe because the only reason it is already |
977 | initialized is if we purposefully set it from a background | |
978 | thread to avoid doing the work here. However, it is still | |
979 | allocated from the heap and needs to be freed by us, just | |
980 | like if we called symbol_find_demangled_name here. If this is | |
981 | nullptr, we call symbol_find_demangled_name below, but we put | |
982 | this smart pointer here to be sure that we don't leak this name. */ | |
983 | gdb::unique_xmalloc_ptr<char> demangled_name | |
984 | (const_cast<char *> (language_specific.demangled_name)); | |
985 | ||
2de7ced7 | 986 | /* If this name is not in the hash table, add it. */ |
a766d390 DE |
987 | if (*slot == NULL |
988 | /* A C version of the symbol may have already snuck into the table. | |
989 | This happens to, e.g., main.init (__go_init_main). Cope. */ | |
4d4eaa30 | 990 | || (language () == language_go && (*slot)->demangled == nullptr)) |
2de7ced7 | 991 | { |
0c921b21 | 992 | /* A 0-terminated copy of the linkage name. Callers must set COPY_NAME |
dda83cd7 SM |
993 | to true if the string might not be nullterminated. We have to make |
994 | this copy because demangling needs a nullterminated string. */ | |
8082468f | 995 | std::string_view linkage_name_copy; |
0c921b21 CB |
996 | if (copy_name) |
997 | { | |
31edb802 CB |
998 | char *alloc_name = (char *) alloca (linkage_name.length () + 1); |
999 | memcpy (alloc_name, linkage_name.data (), linkage_name.length ()); | |
1000 | alloc_name[linkage_name.length ()] = '\0'; | |
0c921b21 | 1001 | |
8082468f | 1002 | linkage_name_copy = std::string_view (alloc_name, |
31edb802 | 1003 | linkage_name.length ()); |
0c921b21 CB |
1004 | } |
1005 | else | |
1006 | linkage_name_copy = linkage_name; | |
1007 | ||
57d75002 | 1008 | if (demangled_name.get () == nullptr) |
3456e70c TT |
1009 | demangled_name |
1010 | = symbol_find_demangled_name (this, linkage_name_copy.data ()); | |
2de7ced7 | 1011 | |
04a679b8 | 1012 | /* Suppose we have demangled_name==NULL, copy_name==0, and |
9c37b5ae | 1013 | linkage_name_copy==linkage_name. In this case, we already have the |
04a679b8 TT |
1014 | mangled name saved, and we don't have a demangled name. So, |
1015 | you might think we could save a little space by not recording | |
1016 | this in the hash table at all. | |
5396ae17 | 1017 | |
04a679b8 TT |
1018 | It turns out that it is actually important to still save such |
1019 | an entry in the hash table, because storing this name gives | |
705b5767 | 1020 | us better bcache hit rates for partial symbols. */ |
0c921b21 | 1021 | if (!copy_name) |
04a679b8 | 1022 | { |
224c3ddb SM |
1023 | *slot |
1024 | = ((struct demangled_name_entry *) | |
1025 | obstack_alloc (&per_bfd->storage_obstack, | |
5396ae17 | 1026 | sizeof (demangled_name_entry))); |
31edb802 | 1027 | new (*slot) demangled_name_entry (linkage_name); |
04a679b8 TT |
1028 | } |
1029 | else | |
1030 | { | |
1031 | /* If we must copy the mangled name, put it directly after | |
5396ae17 | 1032 | the struct so we can have a single allocation. */ |
224c3ddb SM |
1033 | *slot |
1034 | = ((struct demangled_name_entry *) | |
1035 | obstack_alloc (&per_bfd->storage_obstack, | |
31edb802 CB |
1036 | sizeof (demangled_name_entry) |
1037 | + linkage_name.length () + 1)); | |
5396ae17 | 1038 | char *mangled_ptr = reinterpret_cast<char *> (*slot + 1); |
31edb802 CB |
1039 | memcpy (mangled_ptr, linkage_name.data (), linkage_name.length ()); |
1040 | mangled_ptr [linkage_name.length ()] = '\0'; | |
3a494279 | 1041 | new (*slot) demangled_name_entry |
8082468f | 1042 | (std::string_view (mangled_ptr, linkage_name.length ())); |
04a679b8 | 1043 | } |
d55c9a68 | 1044 | (*slot)->demangled = std::move (demangled_name); |
4d4eaa30 | 1045 | (*slot)->language = language (); |
2de7ced7 | 1046 | } |
129bce36 | 1047 | else if (language () == language_unknown) |
4d4eaa30 | 1048 | m_language = (*slot)->language; |
2de7ced7 | 1049 | |
4d4eaa30 | 1050 | m_name = (*slot)->mangled.data (); |
ff985671 | 1051 | set_demangled_name ((*slot)->demangled.get (), &per_bfd->storage_obstack); |
2de7ced7 DJ |
1052 | } |
1053 | ||
c9d95fa3 | 1054 | /* See symtab.h. */ |
22abf04a | 1055 | |
0d5cff50 | 1056 | const char * |
c9d95fa3 | 1057 | general_symbol_info::natural_name () const |
22abf04a | 1058 | { |
c1b5c1eb | 1059 | switch (language ()) |
22abf04a | 1060 | { |
1f8173e6 | 1061 | case language_cplus: |
6aecb9c2 | 1062 | case language_d: |
a766d390 | 1063 | case language_go: |
1f8173e6 | 1064 | case language_objc: |
f55ee35c | 1065 | case language_fortran: |
8c87a452 | 1066 | case language_rust: |
7151c1af TT |
1067 | if (language_specific.demangled_name != nullptr) |
1068 | return language_specific.demangled_name; | |
1f8173e6 PH |
1069 | break; |
1070 | case language_ada: | |
c9d95fa3 | 1071 | return ada_decode_symbol (this); |
1f8173e6 PH |
1072 | default: |
1073 | break; | |
22abf04a | 1074 | } |
4d4eaa30 | 1075 | return linkage_name (); |
22abf04a DC |
1076 | } |
1077 | ||
c9d95fa3 | 1078 | /* See symtab.h. */ |
eca864fe | 1079 | |
0d5cff50 | 1080 | const char * |
c9d95fa3 | 1081 | general_symbol_info::demangled_name () const |
9cc0d196 | 1082 | { |
c6e5ee5e SDJ |
1083 | const char *dem_name = NULL; |
1084 | ||
c1b5c1eb | 1085 | switch (language ()) |
1f8173e6 PH |
1086 | { |
1087 | case language_cplus: | |
6aecb9c2 | 1088 | case language_d: |
a766d390 | 1089 | case language_go: |
1f8173e6 | 1090 | case language_objc: |
f55ee35c | 1091 | case language_fortran: |
8c87a452 | 1092 | case language_rust: |
7151c1af | 1093 | dem_name = language_specific.demangled_name; |
1f8173e6 PH |
1094 | break; |
1095 | case language_ada: | |
c9d95fa3 | 1096 | dem_name = ada_decode_symbol (this); |
1f8173e6 PH |
1097 | break; |
1098 | default: | |
1099 | break; | |
1100 | } | |
c6e5ee5e | 1101 | return dem_name; |
9cc0d196 | 1102 | } |
fe39c653 | 1103 | |
c9d95fa3 | 1104 | /* See symtab.h. */ |
eca864fe | 1105 | |
0d5cff50 | 1106 | const char * |
c9d95fa3 | 1107 | general_symbol_info::search_name () const |
fc062ac6 | 1108 | { |
c1b5c1eb | 1109 | if (language () == language_ada) |
4d4eaa30 | 1110 | return linkage_name (); |
1f8173e6 | 1111 | else |
c9d95fa3 | 1112 | return natural_name (); |
4725b721 | 1113 | } |
b5ec771e PA |
1114 | |
1115 | /* See symtab.h. */ | |
1116 | ||
ebbc3a7d AB |
1117 | struct obj_section * |
1118 | general_symbol_info::obj_section (const struct objfile *objfile) const | |
1119 | { | |
a52d653e | 1120 | if (section_index () >= 0) |
9ed8433a | 1121 | return &objfile->sections_start[section_index ()]; |
ebbc3a7d AB |
1122 | return nullptr; |
1123 | } | |
1124 | ||
1125 | /* See symtab.h. */ | |
1126 | ||
b5ec771e PA |
1127 | bool |
1128 | symbol_matches_search_name (const struct general_symbol_info *gsymbol, | |
1129 | const lookup_name_info &name) | |
1130 | { | |
1131 | symbol_name_matcher_ftype *name_match | |
c9debfb9 | 1132 | = language_def (gsymbol->language ())->get_symbol_name_matcher (name); |
c9d95fa3 | 1133 | return name_match (gsymbol->search_name (), name, NULL); |
b5ec771e PA |
1134 | } |
1135 | ||
c906108c SS |
1136 | \f |
1137 | ||
ececd218 | 1138 | /* Return true if the two sections are the same, or if they could |
94277a38 DJ |
1139 | plausibly be copies of each other, one in an original object |
1140 | file and another in a separated debug file. */ | |
1141 | ||
ececd218 | 1142 | bool |
714835d5 UW |
1143 | matching_obj_sections (struct obj_section *obj_first, |
1144 | struct obj_section *obj_second) | |
94277a38 | 1145 | { |
714835d5 UW |
1146 | asection *first = obj_first? obj_first->the_bfd_section : NULL; |
1147 | asection *second = obj_second? obj_second->the_bfd_section : NULL; | |
94277a38 DJ |
1148 | |
1149 | /* If they're the same section, then they match. */ | |
1150 | if (first == second) | |
ececd218 | 1151 | return true; |
94277a38 DJ |
1152 | |
1153 | /* If either is NULL, give up. */ | |
1154 | if (first == NULL || second == NULL) | |
ececd218 | 1155 | return false; |
94277a38 DJ |
1156 | |
1157 | /* This doesn't apply to absolute symbols. */ | |
1158 | if (first->owner == NULL || second->owner == NULL) | |
ececd218 | 1159 | return false; |
94277a38 DJ |
1160 | |
1161 | /* If they're in the same object file, they must be different sections. */ | |
1162 | if (first->owner == second->owner) | |
ececd218 | 1163 | return false; |
94277a38 DJ |
1164 | |
1165 | /* Check whether the two sections are potentially corresponding. They must | |
1166 | have the same size, address, and name. We can't compare section indexes, | |
1167 | which would be more reliable, because some sections may have been | |
1168 | stripped. */ | |
fd361982 | 1169 | if (bfd_section_size (first) != bfd_section_size (second)) |
ececd218 | 1170 | return false; |
94277a38 | 1171 | |
818f79f6 | 1172 | /* In-memory addresses may start at a different offset, relativize them. */ |
fd361982 AM |
1173 | if (bfd_section_vma (first) - bfd_get_start_address (first->owner) |
1174 | != bfd_section_vma (second) - bfd_get_start_address (second->owner)) | |
ececd218 | 1175 | return false; |
94277a38 | 1176 | |
fd361982 AM |
1177 | if (bfd_section_name (first) == NULL |
1178 | || bfd_section_name (second) == NULL | |
1179 | || strcmp (bfd_section_name (first), bfd_section_name (second)) != 0) | |
ececd218 | 1180 | return false; |
94277a38 DJ |
1181 | |
1182 | /* Otherwise check that they are in corresponding objfiles. */ | |
1183 | ||
9d7c67bf | 1184 | struct objfile *obj = NULL; |
2030c079 | 1185 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
1186 | if (objfile->obfd == first->owner) |
1187 | { | |
1188 | obj = objfile; | |
1189 | break; | |
1190 | } | |
94277a38 DJ |
1191 | gdb_assert (obj != NULL); |
1192 | ||
1193 | if (obj->separate_debug_objfile != NULL | |
1194 | && obj->separate_debug_objfile->obfd == second->owner) | |
ececd218 | 1195 | return true; |
94277a38 DJ |
1196 | if (obj->separate_debug_objfile_backlink != NULL |
1197 | && obj->separate_debug_objfile_backlink->obfd == second->owner) | |
ececd218 | 1198 | return true; |
94277a38 | 1199 | |
ececd218 | 1200 | return false; |
94277a38 | 1201 | } |
c906108c | 1202 | \f |
f57d2163 DE |
1203 | /* Hash function for the symbol cache. */ |
1204 | ||
1205 | static unsigned int | |
1206 | hash_symbol_entry (const struct objfile *objfile_context, | |
1207 | const char *name, domain_enum domain) | |
1208 | { | |
1209 | unsigned int hash = (uintptr_t) objfile_context; | |
1210 | ||
1211 | if (name != NULL) | |
1212 | hash += htab_hash_string (name); | |
1213 | ||
2c26b84f DE |
1214 | /* Because of symbol_matches_domain we need VAR_DOMAIN and STRUCT_DOMAIN |
1215 | to map to the same slot. */ | |
1216 | if (domain == STRUCT_DOMAIN) | |
1217 | hash += VAR_DOMAIN * 7; | |
1218 | else | |
1219 | hash += domain * 7; | |
f57d2163 DE |
1220 | |
1221 | return hash; | |
1222 | } | |
1223 | ||
1224 | /* Equality function for the symbol cache. */ | |
1225 | ||
1226 | static int | |
1227 | eq_symbol_entry (const struct symbol_cache_slot *slot, | |
1228 | const struct objfile *objfile_context, | |
1229 | const char *name, domain_enum domain) | |
1230 | { | |
1231 | const char *slot_name; | |
1232 | domain_enum slot_domain; | |
1233 | ||
1234 | if (slot->state == SYMBOL_SLOT_UNUSED) | |
1235 | return 0; | |
1236 | ||
1237 | if (slot->objfile_context != objfile_context) | |
1238 | return 0; | |
1239 | ||
1240 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
1241 | { | |
1242 | slot_name = slot->value.not_found.name; | |
1243 | slot_domain = slot->value.not_found.domain; | |
1244 | } | |
1245 | else | |
1246 | { | |
987012b8 | 1247 | slot_name = slot->value.found.symbol->search_name (); |
6c9c307c | 1248 | slot_domain = slot->value.found.symbol->domain (); |
f57d2163 DE |
1249 | } |
1250 | ||
1251 | /* NULL names match. */ | |
1252 | if (slot_name == NULL && name == NULL) | |
1253 | { | |
1254 | /* But there's no point in calling symbol_matches_domain in the | |
1255 | SYMBOL_SLOT_FOUND case. */ | |
1256 | if (slot_domain != domain) | |
1257 | return 0; | |
1258 | } | |
1259 | else if (slot_name != NULL && name != NULL) | |
1260 | { | |
b5ec771e PA |
1261 | /* It's important that we use the same comparison that was done |
1262 | the first time through. If the slot records a found symbol, | |
1263 | then this means using the symbol name comparison function of | |
987012b8 | 1264 | the symbol's language with symbol->search_name (). See |
b5ec771e PA |
1265 | dictionary.c. It also means using symbol_matches_domain for |
1266 | found symbols. See block.c. | |
f57d2163 DE |
1267 | |
1268 | If the slot records a not-found symbol, then require a precise match. | |
1269 | We could still be lax with whitespace like strcmp_iw though. */ | |
1270 | ||
1271 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
1272 | { | |
1273 | if (strcmp (slot_name, name) != 0) | |
1274 | return 0; | |
1275 | if (slot_domain != domain) | |
1276 | return 0; | |
1277 | } | |
1278 | else | |
1279 | { | |
d12307c1 | 1280 | struct symbol *sym = slot->value.found.symbol; |
b5ec771e | 1281 | lookup_name_info lookup_name (name, symbol_name_match_type::FULL); |
f57d2163 | 1282 | |
81e32b6a | 1283 | if (!symbol_matches_search_name (sym, lookup_name)) |
f57d2163 | 1284 | return 0; |
b5ec771e | 1285 | |
c1b5c1eb | 1286 | if (!symbol_matches_domain (sym->language (), slot_domain, domain)) |
f57d2163 DE |
1287 | return 0; |
1288 | } | |
1289 | } | |
1290 | else | |
1291 | { | |
1292 | /* Only one name is NULL. */ | |
1293 | return 0; | |
1294 | } | |
1295 | ||
1296 | return 1; | |
1297 | } | |
1298 | ||
1299 | /* Given a cache of size SIZE, return the size of the struct (with variable | |
1300 | length array) in bytes. */ | |
1301 | ||
1302 | static size_t | |
1303 | symbol_cache_byte_size (unsigned int size) | |
1304 | { | |
1305 | return (sizeof (struct block_symbol_cache) | |
1306 | + ((size - 1) * sizeof (struct symbol_cache_slot))); | |
1307 | } | |
1308 | ||
1309 | /* Resize CACHE. */ | |
1310 | ||
1311 | static void | |
1312 | resize_symbol_cache (struct symbol_cache *cache, unsigned int new_size) | |
1313 | { | |
1314 | /* If there's no change in size, don't do anything. | |
1315 | All caches have the same size, so we can just compare with the size | |
1316 | of the global symbols cache. */ | |
1317 | if ((cache->global_symbols != NULL | |
1318 | && cache->global_symbols->size == new_size) | |
1319 | || (cache->global_symbols == NULL | |
1320 | && new_size == 0)) | |
1321 | return; | |
1322 | ||
82f910ea PW |
1323 | destroy_block_symbol_cache (cache->global_symbols); |
1324 | destroy_block_symbol_cache (cache->static_symbols); | |
f57d2163 DE |
1325 | |
1326 | if (new_size == 0) | |
1327 | { | |
1328 | cache->global_symbols = NULL; | |
1329 | cache->static_symbols = NULL; | |
1330 | } | |
1331 | else | |
1332 | { | |
1333 | size_t total_size = symbol_cache_byte_size (new_size); | |
1334 | ||
224c3ddb SM |
1335 | cache->global_symbols |
1336 | = (struct block_symbol_cache *) xcalloc (1, total_size); | |
1337 | cache->static_symbols | |
1338 | = (struct block_symbol_cache *) xcalloc (1, total_size); | |
f57d2163 DE |
1339 | cache->global_symbols->size = new_size; |
1340 | cache->static_symbols->size = new_size; | |
1341 | } | |
1342 | } | |
1343 | ||
f57d2163 DE |
1344 | /* Return the symbol cache of PSPACE. |
1345 | Create one if it doesn't exist yet. */ | |
1346 | ||
1347 | static struct symbol_cache * | |
1348 | get_symbol_cache (struct program_space *pspace) | |
1349 | { | |
3017b94d | 1350 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 DE |
1351 | |
1352 | if (cache == NULL) | |
1353 | { | |
3017b94d TT |
1354 | cache = symbol_cache_key.emplace (pspace); |
1355 | resize_symbol_cache (cache, symbol_cache_size); | |
f57d2163 DE |
1356 | } |
1357 | ||
1358 | return cache; | |
1359 | } | |
1360 | ||
f57d2163 DE |
1361 | /* Set the size of the symbol cache in all program spaces. */ |
1362 | ||
1363 | static void | |
1364 | set_symbol_cache_size (unsigned int new_size) | |
1365 | { | |
94c93c35 | 1366 | for (struct program_space *pspace : program_spaces) |
f57d2163 | 1367 | { |
3017b94d | 1368 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 DE |
1369 | |
1370 | /* The pspace could have been created but not have a cache yet. */ | |
1371 | if (cache != NULL) | |
1372 | resize_symbol_cache (cache, new_size); | |
1373 | } | |
1374 | } | |
1375 | ||
1376 | /* Called when symbol-cache-size is set. */ | |
1377 | ||
1378 | static void | |
eb4c3f4a | 1379 | set_symbol_cache_size_handler (const char *args, int from_tty, |
f57d2163 DE |
1380 | struct cmd_list_element *c) |
1381 | { | |
1382 | if (new_symbol_cache_size > MAX_SYMBOL_CACHE_SIZE) | |
1383 | { | |
1384 | /* Restore the previous value. | |
1385 | This is the value the "show" command prints. */ | |
1386 | new_symbol_cache_size = symbol_cache_size; | |
1387 | ||
1388 | error (_("Symbol cache size is too large, max is %u."), | |
1389 | MAX_SYMBOL_CACHE_SIZE); | |
1390 | } | |
1391 | symbol_cache_size = new_symbol_cache_size; | |
1392 | ||
1393 | set_symbol_cache_size (symbol_cache_size); | |
1394 | } | |
1395 | ||
1396 | /* Lookup symbol NAME,DOMAIN in BLOCK in the symbol cache of PSPACE. | |
1397 | OBJFILE_CONTEXT is the current objfile, which may be NULL. | |
1398 | The result is the symbol if found, SYMBOL_LOOKUP_FAILED if a previous lookup | |
1399 | failed (and thus this one will too), or NULL if the symbol is not present | |
1400 | in the cache. | |
d0509ba4 CB |
1401 | *BSC_PTR and *SLOT_PTR are set to the cache and slot of the symbol, which |
1402 | can be used to save the result of a full lookup attempt. */ | |
f57d2163 | 1403 | |
d12307c1 | 1404 | static struct block_symbol |
f57d2163 | 1405 | symbol_cache_lookup (struct symbol_cache *cache, |
ddbcedf5 | 1406 | struct objfile *objfile_context, enum block_enum block, |
f57d2163 DE |
1407 | const char *name, domain_enum domain, |
1408 | struct block_symbol_cache **bsc_ptr, | |
1409 | struct symbol_cache_slot **slot_ptr) | |
1410 | { | |
1411 | struct block_symbol_cache *bsc; | |
1412 | unsigned int hash; | |
1413 | struct symbol_cache_slot *slot; | |
1414 | ||
1415 | if (block == GLOBAL_BLOCK) | |
1416 | bsc = cache->global_symbols; | |
1417 | else | |
1418 | bsc = cache->static_symbols; | |
1419 | if (bsc == NULL) | |
1420 | { | |
1421 | *bsc_ptr = NULL; | |
1422 | *slot_ptr = NULL; | |
6640a367 | 1423 | return {}; |
f57d2163 DE |
1424 | } |
1425 | ||
1426 | hash = hash_symbol_entry (objfile_context, name, domain); | |
1427 | slot = bsc->symbols + hash % bsc->size; | |
f57d2163 | 1428 | |
d0509ba4 CB |
1429 | *bsc_ptr = bsc; |
1430 | *slot_ptr = slot; | |
1431 | ||
f57d2163 DE |
1432 | if (eq_symbol_entry (slot, objfile_context, name, domain)) |
1433 | { | |
b1e678d9 AB |
1434 | symbol_lookup_debug_printf ("%s block symbol cache hit%s for %s, %s", |
1435 | block == GLOBAL_BLOCK ? "Global" : "Static", | |
1436 | slot->state == SYMBOL_SLOT_NOT_FOUND | |
1437 | ? " (not found)" : "", name, | |
1438 | domain_name (domain)); | |
f57d2163 DE |
1439 | ++bsc->hits; |
1440 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
1441 | return SYMBOL_LOOKUP_FAILED; | |
1442 | return slot->value.found; | |
1443 | } | |
1444 | ||
2c26b84f DE |
1445 | /* Symbol is not present in the cache. */ |
1446 | ||
b1e678d9 AB |
1447 | symbol_lookup_debug_printf ("%s block symbol cache miss for %s, %s", |
1448 | block == GLOBAL_BLOCK ? "Global" : "Static", | |
1449 | name, domain_name (domain)); | |
f57d2163 | 1450 | ++bsc->misses; |
6640a367 | 1451 | return {}; |
f57d2163 DE |
1452 | } |
1453 | ||
f57d2163 DE |
1454 | /* Mark SYMBOL as found in SLOT. |
1455 | OBJFILE_CONTEXT is the current objfile when the lookup was done, or NULL | |
1456 | if it's not needed to distinguish lookups (STATIC_BLOCK). It is *not* | |
1457 | necessarily the objfile the symbol was found in. */ | |
1458 | ||
1459 | static void | |
1460 | symbol_cache_mark_found (struct block_symbol_cache *bsc, | |
1461 | struct symbol_cache_slot *slot, | |
1462 | struct objfile *objfile_context, | |
d12307c1 PMR |
1463 | struct symbol *symbol, |
1464 | const struct block *block) | |
f57d2163 DE |
1465 | { |
1466 | if (bsc == NULL) | |
1467 | return; | |
1468 | if (slot->state != SYMBOL_SLOT_UNUSED) | |
1469 | { | |
1470 | ++bsc->collisions; | |
1471 | symbol_cache_clear_slot (slot); | |
1472 | } | |
1473 | slot->state = SYMBOL_SLOT_FOUND; | |
1474 | slot->objfile_context = objfile_context; | |
d12307c1 PMR |
1475 | slot->value.found.symbol = symbol; |
1476 | slot->value.found.block = block; | |
f57d2163 DE |
1477 | } |
1478 | ||
1479 | /* Mark symbol NAME, DOMAIN as not found in SLOT. | |
1480 | OBJFILE_CONTEXT is the current objfile when the lookup was done, or NULL | |
1481 | if it's not needed to distinguish lookups (STATIC_BLOCK). */ | |
1482 | ||
1483 | static void | |
1484 | symbol_cache_mark_not_found (struct block_symbol_cache *bsc, | |
1485 | struct symbol_cache_slot *slot, | |
1486 | struct objfile *objfile_context, | |
1487 | const char *name, domain_enum domain) | |
1488 | { | |
1489 | if (bsc == NULL) | |
1490 | return; | |
1491 | if (slot->state != SYMBOL_SLOT_UNUSED) | |
1492 | { | |
1493 | ++bsc->collisions; | |
1494 | symbol_cache_clear_slot (slot); | |
1495 | } | |
1496 | slot->state = SYMBOL_SLOT_NOT_FOUND; | |
1497 | slot->objfile_context = objfile_context; | |
1498 | slot->value.not_found.name = xstrdup (name); | |
1499 | slot->value.not_found.domain = domain; | |
1500 | } | |
1501 | ||
1502 | /* Flush the symbol cache of PSPACE. */ | |
1503 | ||
1504 | static void | |
1505 | symbol_cache_flush (struct program_space *pspace) | |
1506 | { | |
3017b94d | 1507 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 | 1508 | int pass; |
f57d2163 DE |
1509 | |
1510 | if (cache == NULL) | |
1511 | return; | |
1512 | if (cache->global_symbols == NULL) | |
1513 | { | |
1514 | gdb_assert (symbol_cache_size == 0); | |
1515 | gdb_assert (cache->static_symbols == NULL); | |
1516 | return; | |
1517 | } | |
1518 | ||
1519 | /* If the cache is untouched since the last flush, early exit. | |
1520 | This is important for performance during the startup of a program linked | |
1521 | with 100s (or 1000s) of shared libraries. */ | |
1522 | if (cache->global_symbols->misses == 0 | |
1523 | && cache->static_symbols->misses == 0) | |
1524 | return; | |
1525 | ||
1526 | gdb_assert (cache->global_symbols->size == symbol_cache_size); | |
1527 | gdb_assert (cache->static_symbols->size == symbol_cache_size); | |
1528 | ||
1529 | for (pass = 0; pass < 2; ++pass) | |
1530 | { | |
1531 | struct block_symbol_cache *bsc | |
1532 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1533 | unsigned int i; | |
1534 | ||
1535 | for (i = 0; i < bsc->size; ++i) | |
1536 | symbol_cache_clear_slot (&bsc->symbols[i]); | |
1537 | } | |
1538 | ||
1539 | cache->global_symbols->hits = 0; | |
1540 | cache->global_symbols->misses = 0; | |
1541 | cache->global_symbols->collisions = 0; | |
1542 | cache->static_symbols->hits = 0; | |
1543 | cache->static_symbols->misses = 0; | |
1544 | cache->static_symbols->collisions = 0; | |
1545 | } | |
1546 | ||
1547 | /* Dump CACHE. */ | |
1548 | ||
1549 | static void | |
1550 | symbol_cache_dump (const struct symbol_cache *cache) | |
1551 | { | |
1552 | int pass; | |
1553 | ||
1554 | if (cache->global_symbols == NULL) | |
1555 | { | |
6cb06a8c | 1556 | gdb_printf (" <disabled>\n"); |
f57d2163 DE |
1557 | return; |
1558 | } | |
1559 | ||
1560 | for (pass = 0; pass < 2; ++pass) | |
1561 | { | |
1562 | const struct block_symbol_cache *bsc | |
1563 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1564 | unsigned int i; | |
1565 | ||
1566 | if (pass == 0) | |
6cb06a8c | 1567 | gdb_printf ("Global symbols:\n"); |
f57d2163 | 1568 | else |
6cb06a8c | 1569 | gdb_printf ("Static symbols:\n"); |
f57d2163 DE |
1570 | |
1571 | for (i = 0; i < bsc->size; ++i) | |
1572 | { | |
1573 | const struct symbol_cache_slot *slot = &bsc->symbols[i]; | |
1574 | ||
1575 | QUIT; | |
1576 | ||
1577 | switch (slot->state) | |
1578 | { | |
1579 | case SYMBOL_SLOT_UNUSED: | |
1580 | break; | |
1581 | case SYMBOL_SLOT_NOT_FOUND: | |
6cb06a8c TT |
1582 | gdb_printf (" [%4u] = %s, %s %s (not found)\n", i, |
1583 | host_address_to_string (slot->objfile_context), | |
1584 | slot->value.not_found.name, | |
1585 | domain_name (slot->value.not_found.domain)); | |
f57d2163 DE |
1586 | break; |
1587 | case SYMBOL_SLOT_FOUND: | |
d12307c1 PMR |
1588 | { |
1589 | struct symbol *found = slot->value.found.symbol; | |
1590 | const struct objfile *context = slot->objfile_context; | |
1591 | ||
6cb06a8c TT |
1592 | gdb_printf (" [%4u] = %s, %s %s\n", i, |
1593 | host_address_to_string (context), | |
1594 | found->print_name (), | |
1595 | domain_name (found->domain ())); | |
d12307c1 PMR |
1596 | break; |
1597 | } | |
f57d2163 DE |
1598 | } |
1599 | } | |
1600 | } | |
1601 | } | |
1602 | ||
1603 | /* The "mt print symbol-cache" command. */ | |
1604 | ||
1605 | static void | |
510e5e56 | 1606 | maintenance_print_symbol_cache (const char *args, int from_tty) |
f57d2163 | 1607 | { |
94c93c35 | 1608 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1609 | { |
1610 | struct symbol_cache *cache; | |
1611 | ||
6cb06a8c TT |
1612 | gdb_printf (_("Symbol cache for pspace %d\n%s:\n"), |
1613 | pspace->num, | |
1614 | pspace->symfile_object_file != NULL | |
1615 | ? objfile_name (pspace->symfile_object_file) | |
1616 | : "(no object file)"); | |
f57d2163 DE |
1617 | |
1618 | /* If the cache hasn't been created yet, avoid creating one. */ | |
3017b94d | 1619 | cache = symbol_cache_key.get (pspace); |
f57d2163 | 1620 | if (cache == NULL) |
6cb06a8c | 1621 | gdb_printf (" <empty>\n"); |
f57d2163 DE |
1622 | else |
1623 | symbol_cache_dump (cache); | |
1624 | } | |
1625 | } | |
1626 | ||
1627 | /* The "mt flush-symbol-cache" command. */ | |
1628 | ||
1629 | static void | |
510e5e56 | 1630 | maintenance_flush_symbol_cache (const char *args, int from_tty) |
f57d2163 | 1631 | { |
94c93c35 | 1632 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1633 | { |
1634 | symbol_cache_flush (pspace); | |
1635 | } | |
1636 | } | |
1637 | ||
1638 | /* Print usage statistics of CACHE. */ | |
1639 | ||
1640 | static void | |
1641 | symbol_cache_stats (struct symbol_cache *cache) | |
1642 | { | |
1643 | int pass; | |
1644 | ||
1645 | if (cache->global_symbols == NULL) | |
1646 | { | |
6cb06a8c | 1647 | gdb_printf (" <disabled>\n"); |
f57d2163 DE |
1648 | return; |
1649 | } | |
1650 | ||
1651 | for (pass = 0; pass < 2; ++pass) | |
1652 | { | |
1653 | const struct block_symbol_cache *bsc | |
1654 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1655 | ||
1656 | QUIT; | |
1657 | ||
1658 | if (pass == 0) | |
6cb06a8c | 1659 | gdb_printf ("Global block cache stats:\n"); |
f57d2163 | 1660 | else |
6cb06a8c | 1661 | gdb_printf ("Static block cache stats:\n"); |
f57d2163 | 1662 | |
6cb06a8c TT |
1663 | gdb_printf (" size: %u\n", bsc->size); |
1664 | gdb_printf (" hits: %u\n", bsc->hits); | |
1665 | gdb_printf (" misses: %u\n", bsc->misses); | |
1666 | gdb_printf (" collisions: %u\n", bsc->collisions); | |
f57d2163 DE |
1667 | } |
1668 | } | |
1669 | ||
1670 | /* The "mt print symbol-cache-statistics" command. */ | |
1671 | ||
1672 | static void | |
510e5e56 | 1673 | maintenance_print_symbol_cache_statistics (const char *args, int from_tty) |
f57d2163 | 1674 | { |
94c93c35 | 1675 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1676 | { |
1677 | struct symbol_cache *cache; | |
1678 | ||
6cb06a8c TT |
1679 | gdb_printf (_("Symbol cache statistics for pspace %d\n%s:\n"), |
1680 | pspace->num, | |
1681 | pspace->symfile_object_file != NULL | |
1682 | ? objfile_name (pspace->symfile_object_file) | |
1683 | : "(no object file)"); | |
f57d2163 DE |
1684 | |
1685 | /* If the cache hasn't been created yet, avoid creating one. */ | |
3017b94d | 1686 | cache = symbol_cache_key.get (pspace); |
f57d2163 | 1687 | if (cache == NULL) |
6cb06a8c | 1688 | gdb_printf (" empty, no stats available\n"); |
f57d2163 DE |
1689 | else |
1690 | symbol_cache_stats (cache); | |
1691 | } | |
1692 | } | |
1693 | ||
1694 | /* This module's 'new_objfile' observer. */ | |
1695 | ||
1696 | static void | |
1697 | symtab_new_objfile_observer (struct objfile *objfile) | |
1698 | { | |
74daa597 SM |
1699 | symbol_cache_flush (objfile->pspace); |
1700 | } | |
1701 | ||
1702 | /* This module's 'all_objfiles_removed' observer. */ | |
1703 | ||
1704 | static void | |
1705 | symtab_all_objfiles_removed (program_space *pspace) | |
1706 | { | |
1707 | symbol_cache_flush (pspace); | |
a0a031bc | 1708 | |
74daa597 SM |
1709 | /* Forget everything we know about the main function. */ |
1710 | set_main_name (pspace, nullptr, language_unknown); | |
f57d2163 DE |
1711 | } |
1712 | ||
1713 | /* This module's 'free_objfile' observer. */ | |
1714 | ||
1715 | static void | |
1716 | symtab_free_objfile_observer (struct objfile *objfile) | |
1717 | { | |
1718 | symbol_cache_flush (objfile->pspace); | |
1719 | } | |
1720 | \f | |
49c1de0e | 1721 | /* See symtab.h. */ |
3f01c12b | 1722 | |
49c1de0e TT |
1723 | void |
1724 | fixup_symbol_section (struct symbol *sym, struct objfile *objfile) | |
c906108c | 1725 | { |
49c1de0e TT |
1726 | gdb_assert (sym != nullptr); |
1727 | gdb_assert (sym->is_objfile_owned ()); | |
1728 | gdb_assert (objfile != nullptr); | |
1729 | gdb_assert (sym->section_index () == -1); | |
1730 | ||
1731 | /* Note that if this ends up as -1, fixup_section will handle that | |
1732 | reasonably well. So, it's fine to use the objfile's section | |
1733 | index without doing the check that is done by the wrapper macros | |
1734 | like SECT_OFF_TEXT. */ | |
1735 | int fallback; | |
1736 | switch (sym->aclass ()) | |
1737 | { | |
1738 | case LOC_STATIC: | |
1739 | fallback = objfile->sect_index_data; | |
1740 | break; | |
1741 | ||
1742 | case LOC_LABEL: | |
1743 | fallback = objfile->sect_index_text; | |
1744 | break; | |
1745 | ||
1746 | default: | |
1747 | /* Nothing else will be listed in the minsyms -- no use looking | |
1748 | it up. */ | |
1749 | return; | |
1750 | } | |
1751 | ||
1752 | CORE_ADDR addr = sym->value_address (); | |
1753 | ||
c906108c | 1754 | struct minimal_symbol *msym; |
c906108c | 1755 | |
bccdca4a UW |
1756 | /* First, check whether a minimal symbol with the same name exists |
1757 | and points to the same address. The address check is required | |
1758 | e.g. on PowerPC64, where the minimal symbol for a function will | |
1759 | point to the function descriptor, while the debug symbol will | |
1760 | point to the actual function code. */ | |
49c1de0e | 1761 | msym = lookup_minimal_symbol_by_pc_name (addr, sym->linkage_name (), |
4d4eaa30 | 1762 | objfile); |
907fc202 | 1763 | if (msym) |
49c1de0e | 1764 | sym->set_section_index (msym->section_index ()); |
907fc202 | 1765 | else |
19e2d14b KB |
1766 | { |
1767 | /* Static, function-local variables do appear in the linker | |
1768 | (minimal) symbols, but are frequently given names that won't | |
1769 | be found via lookup_minimal_symbol(). E.g., it has been | |
1770 | observed in frv-uclinux (ELF) executables that a static, | |
1771 | function-local variable named "foo" might appear in the | |
1772 | linker symbols as "foo.6" or "foo.3". Thus, there is no | |
1773 | point in attempting to extend the lookup-by-name mechanism to | |
1774 | handle this case due to the fact that there can be multiple | |
1775 | names. | |
9af17804 | 1776 | |
19e2d14b KB |
1777 | So, instead, search the section table when lookup by name has |
1778 | failed. The ``addr'' and ``endaddr'' fields may have already | |
6a053cb1 TT |
1779 | been relocated. If so, the relocation offset needs to be |
1780 | subtracted from these values when performing the comparison. | |
1781 | We unconditionally subtract it, because, when no relocation | |
1782 | has been performed, the value will simply be zero. | |
9af17804 | 1783 | |
19e2d14b KB |
1784 | The address of the symbol whose section we're fixing up HAS |
1785 | NOT BEEN adjusted (relocated) yet. It can't have been since | |
1786 | the section isn't yet known and knowing the section is | |
1787 | necessary in order to add the correct relocation value. In | |
1788 | other words, we wouldn't even be in this function (attempting | |
1789 | to compute the section) if it were already known. | |
1790 | ||
1791 | Note that it is possible to search the minimal symbols | |
1792 | (subtracting the relocation value if necessary) to find the | |
1793 | matching minimal symbol, but this is overkill and much less | |
1794 | efficient. It is not necessary to find the matching minimal | |
9af17804 DE |
1795 | symbol, only its section. |
1796 | ||
19e2d14b KB |
1797 | Note that this technique (of doing a section table search) |
1798 | can fail when unrelocated section addresses overlap. For | |
1799 | this reason, we still attempt a lookup by name prior to doing | |
1800 | a search of the section table. */ | |
9af17804 | 1801 | |
5250cbc8 | 1802 | for (obj_section *s : objfile->sections ()) |
19e2d14b | 1803 | { |
49c1de0e TT |
1804 | if ((bfd_section_flags (s->the_bfd_section) & SEC_ALLOC) == 0) |
1805 | continue; | |
1806 | ||
9ed8433a | 1807 | int idx = s - objfile->sections_start; |
6a053cb1 | 1808 | CORE_ADDR offset = objfile->section_offsets[idx]; |
19e2d14b | 1809 | |
e27d198c TT |
1810 | if (fallback == -1) |
1811 | fallback = idx; | |
1812 | ||
0c1bcd23 | 1813 | if (s->addr () - offset <= addr && addr < s->endaddr () - offset) |
19e2d14b | 1814 | { |
49c1de0e | 1815 | sym->set_section_index (idx); |
19e2d14b KB |
1816 | return; |
1817 | } | |
1818 | } | |
e27d198c TT |
1819 | |
1820 | /* If we didn't find the section, assume it is in the first | |
1821 | section. If there is no allocated section, then it hardly | |
1822 | matters what we pick, so just pick zero. */ | |
1823 | if (fallback == -1) | |
49c1de0e | 1824 | sym->set_section_index (0); |
e27d198c | 1825 | else |
49c1de0e | 1826 | sym->set_section_index (fallback); |
19e2d14b | 1827 | } |
c906108c SS |
1828 | } |
1829 | ||
b5ec771e PA |
1830 | /* See symtab.h. */ |
1831 | ||
1832 | demangle_for_lookup_info::demangle_for_lookup_info | |
1833 | (const lookup_name_info &lookup_name, language lang) | |
1834 | { | |
1835 | demangle_result_storage storage; | |
1836 | ||
c62446b1 PA |
1837 | if (lookup_name.ignore_parameters () && lang == language_cplus) |
1838 | { | |
1839 | gdb::unique_xmalloc_ptr<char> without_params | |
e0802d59 | 1840 | = cp_remove_params_if_any (lookup_name.c_str (), |
c62446b1 PA |
1841 | lookup_name.completion_mode ()); |
1842 | ||
1843 | if (without_params != NULL) | |
1844 | { | |
de63c46b PA |
1845 | if (lookup_name.match_type () != symbol_name_match_type::SEARCH_NAME) |
1846 | m_demangled_name = demangle_for_lookup (without_params.get (), | |
1847 | lang, storage); | |
c62446b1 PA |
1848 | return; |
1849 | } | |
1850 | } | |
1851 | ||
de63c46b | 1852 | if (lookup_name.match_type () == symbol_name_match_type::SEARCH_NAME) |
e0802d59 | 1853 | m_demangled_name = lookup_name.c_str (); |
de63c46b | 1854 | else |
e0802d59 | 1855 | m_demangled_name = demangle_for_lookup (lookup_name.c_str (), |
de63c46b | 1856 | lang, storage); |
b5ec771e PA |
1857 | } |
1858 | ||
1859 | /* See symtab.h. */ | |
1860 | ||
1861 | const lookup_name_info & | |
1862 | lookup_name_info::match_any () | |
1863 | { | |
1864 | /* Lookup any symbol that "" would complete. I.e., this matches all | |
1865 | symbol names. */ | |
e0802d59 | 1866 | static const lookup_name_info lookup_name ("", symbol_name_match_type::FULL, |
b5ec771e PA |
1867 | true); |
1868 | ||
1869 | return lookup_name; | |
1870 | } | |
1871 | ||
f8eba3c6 | 1872 | /* Compute the demangled form of NAME as used by the various symbol |
2f408ecb PA |
1873 | lookup functions. The result can either be the input NAME |
1874 | directly, or a pointer to a buffer owned by the STORAGE object. | |
f8eba3c6 | 1875 | |
2f408ecb | 1876 | For Ada, this function just returns NAME, unmodified. |
f8eba3c6 TT |
1877 | Normally, Ada symbol lookups are performed using the encoded name |
1878 | rather than the demangled name, and so it might seem to make sense | |
1879 | for this function to return an encoded version of NAME. | |
1880 | Unfortunately, we cannot do this, because this function is used in | |
1881 | circumstances where it is not appropriate to try to encode NAME. | |
1882 | For instance, when displaying the frame info, we demangle the name | |
1883 | of each parameter, and then perform a symbol lookup inside our | |
1884 | function using that demangled name. In Ada, certain functions | |
1885 | have internally-generated parameters whose name contain uppercase | |
1886 | characters. Encoding those name would result in those uppercase | |
1887 | characters to become lowercase, and thus cause the symbol lookup | |
1888 | to fail. */ | |
c906108c | 1889 | |
2f408ecb | 1890 | const char * |
f8eba3c6 | 1891 | demangle_for_lookup (const char *name, enum language lang, |
2f408ecb | 1892 | demangle_result_storage &storage) |
c906108c | 1893 | { |
9c37b5ae | 1894 | /* If we are using C++, D, or Go, demangle the name before doing a |
c378eb4e | 1895 | lookup, so we can always binary search. */ |
53c5240f | 1896 | if (lang == language_cplus) |
729051e6 | 1897 | { |
3456e70c TT |
1898 | gdb::unique_xmalloc_ptr<char> demangled_name |
1899 | = gdb_demangle (name, DMGL_ANSI | DMGL_PARAMS); | |
2f408ecb | 1900 | if (demangled_name != NULL) |
3456e70c | 1901 | return storage.set_malloc_ptr (std::move (demangled_name)); |
2f408ecb PA |
1902 | |
1903 | /* If we were given a non-mangled name, canonicalize it | |
1904 | according to the language (so far only for C++). */ | |
596dc4ad TT |
1905 | gdb::unique_xmalloc_ptr<char> canon = cp_canonicalize_string (name); |
1906 | if (canon != nullptr) | |
1907 | return storage.set_malloc_ptr (std::move (canon)); | |
729051e6 | 1908 | } |
6aecb9c2 JB |
1909 | else if (lang == language_d) |
1910 | { | |
3456e70c | 1911 | gdb::unique_xmalloc_ptr<char> demangled_name = d_demangle (name, 0); |
2f408ecb | 1912 | if (demangled_name != NULL) |
3456e70c | 1913 | return storage.set_malloc_ptr (std::move (demangled_name)); |
6aecb9c2 | 1914 | } |
a766d390 DE |
1915 | else if (lang == language_go) |
1916 | { | |
3456e70c | 1917 | gdb::unique_xmalloc_ptr<char> demangled_name |
82fc57fd | 1918 | = language_def (language_go)->demangle_symbol (name, 0); |
2f408ecb | 1919 | if (demangled_name != NULL) |
3456e70c | 1920 | return storage.set_malloc_ptr (std::move (demangled_name)); |
a766d390 | 1921 | } |
729051e6 | 1922 | |
2f408ecb | 1923 | return name; |
f8eba3c6 TT |
1924 | } |
1925 | ||
5ffa0793 PA |
1926 | /* See symtab.h. */ |
1927 | ||
1928 | unsigned int | |
1929 | search_name_hash (enum language language, const char *search_name) | |
1930 | { | |
fb8006fd | 1931 | return language_def (language)->search_name_hash (search_name); |
5ffa0793 PA |
1932 | } |
1933 | ||
cf901d3b | 1934 | /* See symtab.h. |
f8eba3c6 | 1935 | |
cf901d3b | 1936 | This function (or rather its subordinates) have a bunch of loops and |
7e082072 DE |
1937 | it would seem to be attractive to put in some QUIT's (though I'm not really |
1938 | sure whether it can run long enough to be really important). But there | |
f8eba3c6 | 1939 | are a few calls for which it would appear to be bad news to quit |
7e082072 | 1940 | out of here: e.g., find_proc_desc in alpha-mdebug-tdep.c. (Note |
f8eba3c6 TT |
1941 | that there is C++ code below which can error(), but that probably |
1942 | doesn't affect these calls since they are looking for a known | |
1943 | variable and thus can probably assume it will never hit the C++ | |
1944 | code). */ | |
1945 | ||
d12307c1 | 1946 | struct block_symbol |
f8eba3c6 TT |
1947 | lookup_symbol_in_language (const char *name, const struct block *block, |
1948 | const domain_enum domain, enum language lang, | |
1993b719 | 1949 | struct field_of_this_result *is_a_field_of_this) |
f8eba3c6 | 1950 | { |
2698da26 AB |
1951 | SYMBOL_LOOKUP_SCOPED_DEBUG_ENTER_EXIT; |
1952 | ||
2f408ecb PA |
1953 | demangle_result_storage storage; |
1954 | const char *modified_name = demangle_for_lookup (name, lang, storage); | |
f8eba3c6 | 1955 | |
de63c46b PA |
1956 | return lookup_symbol_aux (modified_name, |
1957 | symbol_name_match_type::FULL, | |
1958 | block, domain, lang, | |
2f408ecb | 1959 | is_a_field_of_this); |
fba7f19c EZ |
1960 | } |
1961 | ||
cf901d3b | 1962 | /* See symtab.h. */ |
53c5240f | 1963 | |
d12307c1 | 1964 | struct block_symbol |
53c5240f | 1965 | lookup_symbol (const char *name, const struct block *block, |
1993b719 TT |
1966 | domain_enum domain, |
1967 | struct field_of_this_result *is_a_field_of_this) | |
53c5240f PA |
1968 | { |
1969 | return lookup_symbol_in_language (name, block, domain, | |
1970 | current_language->la_language, | |
2570f2b7 | 1971 | is_a_field_of_this); |
53c5240f PA |
1972 | } |
1973 | ||
cf901d3b | 1974 | /* See symtab.h. */ |
66a17cb6 | 1975 | |
de63c46b PA |
1976 | struct block_symbol |
1977 | lookup_symbol_search_name (const char *search_name, const struct block *block, | |
1978 | domain_enum domain) | |
1979 | { | |
1980 | return lookup_symbol_aux (search_name, symbol_name_match_type::SEARCH_NAME, | |
1981 | block, domain, language_asm, NULL); | |
1982 | } | |
1983 | ||
1984 | /* See symtab.h. */ | |
1985 | ||
d12307c1 | 1986 | struct block_symbol |
66a17cb6 TT |
1987 | lookup_language_this (const struct language_defn *lang, |
1988 | const struct block *block) | |
1989 | { | |
5bae7c4e | 1990 | if (lang->name_of_this () == NULL || block == NULL) |
6640a367 | 1991 | return {}; |
66a17cb6 | 1992 | |
b1e678d9 AB |
1993 | symbol_lookup_debug_printf_v ("lookup_language_this (%s, %s (objfile %s))", |
1994 | lang->name (), host_address_to_string (block), | |
46baa3c6 | 1995 | objfile_debug_name (block->objfile ())); |
cc485e62 | 1996 | |
03de6823 | 1997 | while (block) |
66a17cb6 TT |
1998 | { |
1999 | struct symbol *sym; | |
2000 | ||
5bae7c4e | 2001 | sym = block_lookup_symbol (block, lang->name_of_this (), |
de63c46b PA |
2002 | symbol_name_match_type::SEARCH_NAME, |
2003 | VAR_DOMAIN); | |
66a17cb6 | 2004 | if (sym != NULL) |
f149aabd | 2005 | { |
b1e678d9 AB |
2006 | symbol_lookup_debug_printf_v |
2007 | ("lookup_language_this (...) = %s (%s, block %s)", | |
2008 | sym->print_name (), host_address_to_string (sym), | |
2009 | host_address_to_string (block)); | |
d12307c1 | 2010 | return (struct block_symbol) {sym, block}; |
f149aabd | 2011 | } |
6c00f721 | 2012 | if (block->function ()) |
03de6823 | 2013 | break; |
f135fe72 | 2014 | block = block->superblock (); |
66a17cb6 | 2015 | } |
03de6823 | 2016 | |
b1e678d9 | 2017 | symbol_lookup_debug_printf_v ("lookup_language_this (...) = NULL"); |
6640a367 | 2018 | return {}; |
66a17cb6 TT |
2019 | } |
2020 | ||
2dc3df72 TT |
2021 | /* Given TYPE, a structure/union, |
2022 | return 1 if the component named NAME from the ultimate target | |
2023 | structure/union is defined, otherwise, return 0. */ | |
2024 | ||
2025 | static int | |
1993b719 TT |
2026 | check_field (struct type *type, const char *name, |
2027 | struct field_of_this_result *is_a_field_of_this) | |
2dc3df72 TT |
2028 | { |
2029 | int i; | |
2030 | ||
2031 | /* The type may be a stub. */ | |
f168693b | 2032 | type = check_typedef (type); |
2dc3df72 | 2033 | |
1f704f76 | 2034 | for (i = type->num_fields () - 1; i >= TYPE_N_BASECLASSES (type); i--) |
2dc3df72 | 2035 | { |
33d16dd9 | 2036 | const char *t_field_name = type->field (i).name (); |
2dc3df72 TT |
2037 | |
2038 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) | |
1993b719 TT |
2039 | { |
2040 | is_a_field_of_this->type = type; | |
ceacbf6e | 2041 | is_a_field_of_this->field = &type->field (i); |
1993b719 TT |
2042 | return 1; |
2043 | } | |
2dc3df72 TT |
2044 | } |
2045 | ||
2046 | /* C++: If it was not found as a data field, then try to return it | |
2047 | as a pointer to a method. */ | |
2048 | ||
2049 | for (i = TYPE_NFN_FIELDS (type) - 1; i >= 0; --i) | |
2050 | { | |
2051 | if (strcmp_iw (TYPE_FN_FIELDLIST_NAME (type, i), name) == 0) | |
1993b719 TT |
2052 | { |
2053 | is_a_field_of_this->type = type; | |
2054 | is_a_field_of_this->fn_field = &TYPE_FN_FIELDLIST (type, i); | |
2055 | return 1; | |
2056 | } | |
2dc3df72 TT |
2057 | } |
2058 | ||
2059 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1993b719 | 2060 | if (check_field (TYPE_BASECLASS (type, i), name, is_a_field_of_this)) |
2dc3df72 TT |
2061 | return 1; |
2062 | ||
2063 | return 0; | |
2064 | } | |
2065 | ||
53c5240f | 2066 | /* Behave like lookup_symbol except that NAME is the natural name |
7e082072 | 2067 | (e.g., demangled name) of the symbol that we're looking for. */ |
5ad1c190 | 2068 | |
d12307c1 | 2069 | static struct block_symbol |
de63c46b PA |
2070 | lookup_symbol_aux (const char *name, symbol_name_match_type match_type, |
2071 | const struct block *block, | |
94af9270 | 2072 | const domain_enum domain, enum language language, |
1993b719 | 2073 | struct field_of_this_result *is_a_field_of_this) |
fba7f19c | 2074 | { |
2698da26 AB |
2075 | SYMBOL_LOOKUP_SCOPED_DEBUG_ENTER_EXIT; |
2076 | ||
d12307c1 | 2077 | struct block_symbol result; |
53c5240f | 2078 | const struct language_defn *langdef; |
406bc4de | 2079 | |
cc485e62 DE |
2080 | if (symbol_lookup_debug) |
2081 | { | |
d6bc0792 | 2082 | struct objfile *objfile = (block == nullptr |
46baa3c6 | 2083 | ? nullptr : block->objfile ()); |
cc485e62 | 2084 | |
b1e678d9 AB |
2085 | symbol_lookup_debug_printf |
2086 | ("demangled symbol name = \"%s\", block @ %s (objfile %s)", | |
2087 | name, host_address_to_string (block), | |
2088 | objfile != NULL ? objfile_debug_name (objfile) : "NULL"); | |
2089 | symbol_lookup_debug_printf | |
2090 | ("domain name = \"%s\", language = \"%s\")", | |
2091 | domain_name (domain), language_str (language)); | |
cc485e62 DE |
2092 | } |
2093 | ||
9a146a11 EZ |
2094 | /* Make sure we do something sensible with is_a_field_of_this, since |
2095 | the callers that set this parameter to some non-null value will | |
1993b719 TT |
2096 | certainly use it later. If we don't set it, the contents of |
2097 | is_a_field_of_this are undefined. */ | |
9a146a11 | 2098 | if (is_a_field_of_this != NULL) |
1993b719 | 2099 | memset (is_a_field_of_this, 0, sizeof (*is_a_field_of_this)); |
9a146a11 | 2100 | |
e4051eeb DC |
2101 | /* Search specified block and its superiors. Don't search |
2102 | STATIC_BLOCK or GLOBAL_BLOCK. */ | |
c906108c | 2103 | |
de63c46b | 2104 | result = lookup_local_symbol (name, match_type, block, domain, language); |
d12307c1 | 2105 | if (result.symbol != NULL) |
cc485e62 | 2106 | { |
b1e678d9 AB |
2107 | symbol_lookup_debug_printf |
2108 | ("found symbol @ %s (using lookup_local_symbol)", | |
2109 | host_address_to_string (result.symbol)); | |
d12307c1 | 2110 | return result; |
cc485e62 | 2111 | } |
c906108c | 2112 | |
53c5240f | 2113 | /* If requested to do so by the caller and if appropriate for LANGUAGE, |
13387711 | 2114 | check to see if NAME is a field of `this'. */ |
53c5240f PA |
2115 | |
2116 | langdef = language_def (language); | |
5f9a71c3 | 2117 | |
6592e36f TT |
2118 | /* Don't do this check if we are searching for a struct. It will |
2119 | not be found by check_field, but will be found by other | |
2120 | means. */ | |
2121 | if (is_a_field_of_this != NULL && domain != STRUCT_DOMAIN) | |
c906108c | 2122 | { |
d12307c1 | 2123 | result = lookup_language_this (langdef, block); |
2b2d9e11 | 2124 | |
d12307c1 | 2125 | if (result.symbol) |
c906108c | 2126 | { |
5f9c5a63 | 2127 | struct type *t = result.symbol->type (); |
9af17804 | 2128 | |
2b2d9e11 VP |
2129 | /* I'm not really sure that type of this can ever |
2130 | be typedefed; just be safe. */ | |
f168693b | 2131 | t = check_typedef (t); |
809f3be1 | 2132 | if (t->is_pointer_or_reference ()) |
27710edb | 2133 | t = t->target_type (); |
9af17804 | 2134 | |
78134374 SM |
2135 | if (t->code () != TYPE_CODE_STRUCT |
2136 | && t->code () != TYPE_CODE_UNION) | |
9af17804 | 2137 | error (_("Internal error: `%s' is not an aggregate"), |
5bae7c4e | 2138 | langdef->name_of_this ()); |
9af17804 | 2139 | |
1993b719 | 2140 | if (check_field (t, name, is_a_field_of_this)) |
cc485e62 | 2141 | { |
b1e678d9 | 2142 | symbol_lookup_debug_printf ("no symbol found"); |
6640a367 | 2143 | return {}; |
cc485e62 | 2144 | } |
c906108c SS |
2145 | } |
2146 | } | |
2147 | ||
53c5240f | 2148 | /* Now do whatever is appropriate for LANGUAGE to look |
774b6a14 | 2149 | up static and global variables. */ |
c906108c | 2150 | |
a78a19b1 | 2151 | result = langdef->lookup_symbol_nonlocal (name, block, domain); |
d12307c1 | 2152 | if (result.symbol != NULL) |
cc485e62 | 2153 | { |
b1e678d9 AB |
2154 | symbol_lookup_debug_printf |
2155 | ("found symbol @ %s (using language lookup_symbol_nonlocal)", | |
2156 | host_address_to_string (result.symbol)); | |
d12307c1 | 2157 | return result; |
cc485e62 | 2158 | } |
c906108c | 2159 | |
774b6a14 TT |
2160 | /* Now search all static file-level symbols. Not strictly correct, |
2161 | but more useful than an error. */ | |
41f62f39 | 2162 | |
d12307c1 | 2163 | result = lookup_static_symbol (name, domain); |
b1e678d9 AB |
2164 | symbol_lookup_debug_printf |
2165 | ("found symbol @ %s (using lookup_static_symbol)", | |
2166 | result.symbol != NULL ? host_address_to_string (result.symbol) : "NULL"); | |
d12307c1 | 2167 | return result; |
41f62f39 JK |
2168 | } |
2169 | ||
e4051eeb | 2170 | /* Check to see if the symbol is defined in BLOCK or its superiors. |
89a9d1b1 | 2171 | Don't search STATIC_BLOCK or GLOBAL_BLOCK. */ |
8155455b | 2172 | |
d12307c1 | 2173 | static struct block_symbol |
de63c46b PA |
2174 | lookup_local_symbol (const char *name, |
2175 | symbol_name_match_type match_type, | |
2176 | const struct block *block, | |
74016e12 DE |
2177 | const domain_enum domain, |
2178 | enum language language) | |
8155455b | 2179 | { |
78004096 TT |
2180 | if (block == nullptr) |
2181 | return {}; | |
2182 | ||
8155455b | 2183 | struct symbol *sym; |
d24e14a0 | 2184 | const struct block *static_block = block->static_block (); |
3c45e9f9 | 2185 | const char *scope = block->scope (); |
13387711 | 2186 | |
78004096 TT |
2187 | /* Check if it's a global block. */ |
2188 | if (static_block == nullptr) | |
6640a367 | 2189 | return {}; |
e4051eeb | 2190 | |
89a9d1b1 | 2191 | while (block != static_block) |
f61e8913 | 2192 | { |
de63c46b | 2193 | sym = lookup_symbol_in_block (name, match_type, block, domain); |
f61e8913 | 2194 | if (sym != NULL) |
d12307c1 | 2195 | return (struct block_symbol) {sym, block}; |
edb3359d | 2196 | |
f55ee35c | 2197 | if (language == language_cplus || language == language_fortran) |
dda83cd7 SM |
2198 | { |
2199 | struct block_symbol blocksym | |
d12307c1 PMR |
2200 | = cp_lookup_symbol_imports_or_template (scope, name, block, |
2201 | domain); | |
2202 | ||
dda83cd7 SM |
2203 | if (blocksym.symbol != NULL) |
2204 | return blocksym; | |
2205 | } | |
13387711 | 2206 | |
a4dfe747 | 2207 | if (block->function () != NULL && block->inlined_p ()) |
edb3359d | 2208 | break; |
f135fe72 | 2209 | block = block->superblock (); |
f61e8913 DC |
2210 | } |
2211 | ||
3aee438b | 2212 | /* We've reached the end of the function without finding a result. */ |
e4051eeb | 2213 | |
6640a367 | 2214 | return {}; |
f61e8913 DC |
2215 | } |
2216 | ||
cf901d3b | 2217 | /* See symtab.h. */ |
3a40aaa0 | 2218 | |
5f9a71c3 | 2219 | struct symbol * |
de63c46b PA |
2220 | lookup_symbol_in_block (const char *name, symbol_name_match_type match_type, |
2221 | const struct block *block, | |
d1a2d36d | 2222 | const domain_enum domain) |
f61e8913 DC |
2223 | { |
2224 | struct symbol *sym; | |
f61e8913 | 2225 | |
b1e678d9 | 2226 | if (symbol_lookup_debug) |
cc485e62 | 2227 | { |
b1e678d9 | 2228 | struct objfile *objfile |
46baa3c6 | 2229 | = block == nullptr ? nullptr : block->objfile (); |
cc485e62 | 2230 | |
b1e678d9 AB |
2231 | symbol_lookup_debug_printf_v |
2232 | ("lookup_symbol_in_block (%s, %s (objfile %s), %s)", | |
2233 | name, host_address_to_string (block), | |
2234 | objfile != nullptr ? objfile_debug_name (objfile) : "NULL", | |
2235 | domain_name (domain)); | |
cc485e62 DE |
2236 | } |
2237 | ||
de63c46b | 2238 | sym = block_lookup_symbol (block, name, match_type, domain); |
f61e8913 | 2239 | if (sym) |
8155455b | 2240 | { |
b1e678d9 AB |
2241 | symbol_lookup_debug_printf_v ("lookup_symbol_in_block (...) = %s", |
2242 | host_address_to_string (sym)); | |
dae58e04 | 2243 | return sym; |
8155455b DC |
2244 | } |
2245 | ||
b1e678d9 | 2246 | symbol_lookup_debug_printf_v ("lookup_symbol_in_block (...) = NULL"); |
8155455b DC |
2247 | return NULL; |
2248 | } | |
2249 | ||
cf901d3b | 2250 | /* See symtab.h. */ |
3a40aaa0 | 2251 | |
d12307c1 | 2252 | struct block_symbol |
efad9b6a | 2253 | lookup_global_symbol_from_objfile (struct objfile *main_objfile, |
442853af | 2254 | enum block_enum block_index, |
3a40aaa0 | 2255 | const char *name, |
21b556f4 | 2256 | const domain_enum domain) |
3a40aaa0 | 2257 | { |
442853af CB |
2258 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2259 | ||
bde09ab7 | 2260 | for (objfile *objfile : main_objfile->separate_debug_objfiles ()) |
15d123c9 | 2261 | { |
d12307c1 | 2262 | struct block_symbol result |
dda83cd7 | 2263 | = lookup_symbol_in_objfile (objfile, block_index, name, domain); |
15d123c9 | 2264 | |
442853af | 2265 | if (result.symbol != nullptr) |
d12307c1 | 2266 | return result; |
15d123c9 | 2267 | } |
56e3f43c | 2268 | |
6640a367 | 2269 | return {}; |
3a40aaa0 UW |
2270 | } |
2271 | ||
19630284 JB |
2272 | /* Check to see if the symbol is defined in one of the OBJFILE's |
2273 | symtabs. BLOCK_INDEX should be either GLOBAL_BLOCK or STATIC_BLOCK, | |
8155455b DC |
2274 | depending on whether or not we want to search global symbols or |
2275 | static symbols. */ | |
2276 | ||
d12307c1 | 2277 | static struct block_symbol |
c32e6a04 CB |
2278 | lookup_symbol_in_objfile_symtabs (struct objfile *objfile, |
2279 | enum block_enum block_index, const char *name, | |
2280 | const domain_enum domain) | |
19630284 | 2281 | { |
ba715d7f JK |
2282 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2283 | ||
b1e678d9 AB |
2284 | symbol_lookup_debug_printf_v |
2285 | ("lookup_symbol_in_objfile_symtabs (%s, %s, %s, %s)", | |
2286 | objfile_debug_name (objfile), | |
2287 | block_index == GLOBAL_BLOCK ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
2288 | name, domain_name (domain)); | |
cc485e62 | 2289 | |
de82891c TV |
2290 | struct block_symbol other; |
2291 | other.symbol = NULL; | |
b669c953 | 2292 | for (compunit_symtab *cust : objfile->compunits ()) |
a743abeb | 2293 | { |
43f3e411 DE |
2294 | const struct blockvector *bv; |
2295 | const struct block *block; | |
d12307c1 | 2296 | struct block_symbol result; |
43f3e411 | 2297 | |
af39c5c8 | 2298 | bv = cust->blockvector (); |
63d609de | 2299 | block = bv->block (block_index); |
d12307c1 PMR |
2300 | result.symbol = block_lookup_symbol_primary (block, name, domain); |
2301 | result.block = block; | |
de82891c TV |
2302 | if (result.symbol == NULL) |
2303 | continue; | |
2304 | if (best_symbol (result.symbol, domain)) | |
a743abeb | 2305 | { |
de82891c TV |
2306 | other = result; |
2307 | break; | |
2308 | } | |
911e1e79 | 2309 | if (result.symbol->matches (domain)) |
de82891c TV |
2310 | { |
2311 | struct symbol *better | |
2312 | = better_symbol (other.symbol, result.symbol, domain); | |
2313 | if (better != other.symbol) | |
cc485e62 | 2314 | { |
de82891c TV |
2315 | other.symbol = better; |
2316 | other.block = block; | |
cc485e62 | 2317 | } |
de82891c TV |
2318 | } |
2319 | } | |
d12307c1 | 2320 | |
de82891c TV |
2321 | if (other.symbol != NULL) |
2322 | { | |
b1e678d9 AB |
2323 | symbol_lookup_debug_printf_v |
2324 | ("lookup_symbol_in_objfile_symtabs (...) = %s (block %s)", | |
2325 | host_address_to_string (other.symbol), | |
2326 | host_address_to_string (other.block)); | |
de82891c | 2327 | return other; |
a743abeb | 2328 | } |
19630284 | 2329 | |
b1e678d9 AB |
2330 | symbol_lookup_debug_printf_v |
2331 | ("lookup_symbol_in_objfile_symtabs (...) = NULL"); | |
6640a367 | 2332 | return {}; |
19630284 JB |
2333 | } |
2334 | ||
74016e12 | 2335 | /* Wrapper around lookup_symbol_in_objfile_symtabs for search_symbols. |
422d65e7 | 2336 | Look up LINKAGE_NAME in DOMAIN in the global and static blocks of OBJFILE |
01465b56 DE |
2337 | and all associated separate debug objfiles. |
2338 | ||
2339 | Normally we only look in OBJFILE, and not any separate debug objfiles | |
2340 | because the outer loop will cause them to be searched too. This case is | |
2341 | different. Here we're called from search_symbols where it will only | |
6471e7d2 | 2342 | call us for the objfile that contains a matching minsym. */ |
422d65e7 | 2343 | |
d12307c1 | 2344 | static struct block_symbol |
422d65e7 DE |
2345 | lookup_symbol_in_objfile_from_linkage_name (struct objfile *objfile, |
2346 | const char *linkage_name, | |
2347 | domain_enum domain) | |
2348 | { | |
2349 | enum language lang = current_language->la_language; | |
e9ad22ee | 2350 | struct objfile *main_objfile; |
422d65e7 | 2351 | |
2f408ecb PA |
2352 | demangle_result_storage storage; |
2353 | const char *modified_name = demangle_for_lookup (linkage_name, lang, storage); | |
2354 | ||
422d65e7 DE |
2355 | if (objfile->separate_debug_objfile_backlink) |
2356 | main_objfile = objfile->separate_debug_objfile_backlink; | |
2357 | else | |
2358 | main_objfile = objfile; | |
2359 | ||
bde09ab7 | 2360 | for (::objfile *cur_objfile : main_objfile->separate_debug_objfiles ()) |
422d65e7 | 2361 | { |
d12307c1 PMR |
2362 | struct block_symbol result; |
2363 | ||
2364 | result = lookup_symbol_in_objfile_symtabs (cur_objfile, GLOBAL_BLOCK, | |
2365 | modified_name, domain); | |
2366 | if (result.symbol == NULL) | |
2367 | result = lookup_symbol_in_objfile_symtabs (cur_objfile, STATIC_BLOCK, | |
2368 | modified_name, domain); | |
2369 | if (result.symbol != NULL) | |
2f408ecb | 2370 | return result; |
422d65e7 DE |
2371 | } |
2372 | ||
6640a367 | 2373 | return {}; |
422d65e7 DE |
2374 | } |
2375 | ||
08c23b0d TT |
2376 | /* A helper function that throws an exception when a symbol was found |
2377 | in a psymtab but not in a symtab. */ | |
2378 | ||
2379 | static void ATTRIBUTE_NORETURN | |
ddbcedf5 | 2380 | error_in_psymtab_expansion (enum block_enum block_index, const char *name, |
43f3e411 | 2381 | struct compunit_symtab *cust) |
08c23b0d TT |
2382 | { |
2383 | error (_("\ | |
2384 | Internal: %s symbol `%s' found in %s psymtab but not in symtab.\n\ | |
2385 | %s may be an inlined function, or may be a template function\n \ | |
2386 | (if a template, try specifying an instantiation: %s<type>)."), | |
f88cb4b6 | 2387 | block_index == GLOBAL_BLOCK ? "global" : "static", |
43f3e411 | 2388 | name, |
0b17a4f7 | 2389 | symtab_to_filename_for_display (cust->primary_filetab ()), |
43f3e411 | 2390 | name, name); |
08c23b0d TT |
2391 | } |
2392 | ||
74016e12 DE |
2393 | /* A helper function for various lookup routines that interfaces with |
2394 | the "quick" symbol table functions. */ | |
8155455b | 2395 | |
d12307c1 | 2396 | static struct block_symbol |
ddbcedf5 CB |
2397 | lookup_symbol_via_quick_fns (struct objfile *objfile, |
2398 | enum block_enum block_index, const char *name, | |
2399 | const domain_enum domain) | |
8155455b | 2400 | { |
43f3e411 | 2401 | struct compunit_symtab *cust; |
346d1dfe | 2402 | const struct blockvector *bv; |
8155455b | 2403 | const struct block *block; |
d12307c1 | 2404 | struct block_symbol result; |
8155455b | 2405 | |
b1e678d9 AB |
2406 | symbol_lookup_debug_printf_v |
2407 | ("lookup_symbol_via_quick_fns (%s, %s, %s, %s)", | |
2408 | objfile_debug_name (objfile), | |
2409 | block_index == GLOBAL_BLOCK ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
2410 | name, domain_name (domain)); | |
cc485e62 | 2411 | |
4d080b46 | 2412 | cust = objfile->lookup_symbol (block_index, name, domain); |
43f3e411 | 2413 | if (cust == NULL) |
cc485e62 | 2414 | { |
b1e678d9 AB |
2415 | symbol_lookup_debug_printf_v |
2416 | ("lookup_symbol_via_quick_fns (...) = NULL"); | |
6640a367 | 2417 | return {}; |
cc485e62 | 2418 | } |
8155455b | 2419 | |
af39c5c8 | 2420 | bv = cust->blockvector (); |
63d609de | 2421 | block = bv->block (block_index); |
de63c46b PA |
2422 | result.symbol = block_lookup_symbol (block, name, |
2423 | symbol_name_match_type::FULL, domain); | |
d12307c1 | 2424 | if (result.symbol == NULL) |
43f3e411 | 2425 | error_in_psymtab_expansion (block_index, name, cust); |
cc485e62 | 2426 | |
b1e678d9 AB |
2427 | symbol_lookup_debug_printf_v |
2428 | ("lookup_symbol_via_quick_fns (...) = %s (block %s)", | |
2429 | host_address_to_string (result.symbol), | |
2430 | host_address_to_string (block)); | |
cc485e62 | 2431 | |
d12307c1 PMR |
2432 | result.block = block; |
2433 | return result; | |
8155455b DC |
2434 | } |
2435 | ||
a78a19b1 | 2436 | /* See language.h. */ |
5f9a71c3 | 2437 | |
d12307c1 | 2438 | struct block_symbol |
a78a19b1 AB |
2439 | language_defn::lookup_symbol_nonlocal (const char *name, |
2440 | const struct block *block, | |
2441 | const domain_enum domain) const | |
5f9a71c3 | 2442 | { |
d12307c1 | 2443 | struct block_symbol result; |
5f9a71c3 | 2444 | |
d9060ba6 DE |
2445 | /* NOTE: dje/2014-10-26: The lookup in all objfiles search could skip |
2446 | the current objfile. Searching the current objfile first is useful | |
2447 | for both matching user expectations as well as performance. */ | |
2448 | ||
d12307c1 PMR |
2449 | result = lookup_symbol_in_static_block (name, block, domain); |
2450 | if (result.symbol != NULL) | |
2451 | return result; | |
5f9a71c3 | 2452 | |
1994afbf DE |
2453 | /* If we didn't find a definition for a builtin type in the static block, |
2454 | search for it now. This is actually the right thing to do and can be | |
2455 | a massive performance win. E.g., when debugging a program with lots of | |
2456 | shared libraries we could search all of them only to find out the | |
2457 | builtin type isn't defined in any of them. This is common for types | |
2458 | like "void". */ | |
2459 | if (domain == VAR_DOMAIN) | |
2460 | { | |
2461 | struct gdbarch *gdbarch; | |
2462 | ||
2463 | if (block == NULL) | |
99d9c3b9 | 2464 | gdbarch = current_inferior ()->arch (); |
1994afbf | 2465 | else |
7f5937df | 2466 | gdbarch = block->gdbarch (); |
a78a19b1 | 2467 | result.symbol = language_lookup_primitive_type_as_symbol (this, |
d12307c1 PMR |
2468 | gdbarch, name); |
2469 | result.block = NULL; | |
2470 | if (result.symbol != NULL) | |
2471 | return result; | |
1994afbf DE |
2472 | } |
2473 | ||
08724ab7 | 2474 | return lookup_global_symbol (name, block, domain); |
5f9a71c3 DC |
2475 | } |
2476 | ||
cf901d3b | 2477 | /* See symtab.h. */ |
5f9a71c3 | 2478 | |
d12307c1 | 2479 | struct block_symbol |
24d864bb DE |
2480 | lookup_symbol_in_static_block (const char *name, |
2481 | const struct block *block, | |
2482 | const domain_enum domain) | |
5f9a71c3 | 2483 | { |
78004096 TT |
2484 | if (block == nullptr) |
2485 | return {}; | |
2486 | ||
d24e14a0 | 2487 | const struct block *static_block = block->static_block (); |
cc485e62 | 2488 | struct symbol *sym; |
5f9a71c3 | 2489 | |
cc485e62 | 2490 | if (static_block == NULL) |
6640a367 | 2491 | return {}; |
cc485e62 DE |
2492 | |
2493 | if (symbol_lookup_debug) | |
2494 | { | |
d6bc0792 | 2495 | struct objfile *objfile = (block == nullptr |
46baa3c6 | 2496 | ? nullptr : block->objfile ()); |
cc485e62 | 2497 | |
b1e678d9 AB |
2498 | symbol_lookup_debug_printf |
2499 | ("lookup_symbol_in_static_block (%s, %s (objfile %s), %s)", | |
2500 | name, host_address_to_string (block), | |
2501 | objfile != nullptr ? objfile_debug_name (objfile) : "NULL", | |
2502 | domain_name (domain)); | |
cc485e62 DE |
2503 | } |
2504 | ||
de63c46b PA |
2505 | sym = lookup_symbol_in_block (name, |
2506 | symbol_name_match_type::FULL, | |
2507 | static_block, domain); | |
b1e678d9 AB |
2508 | symbol_lookup_debug_printf ("lookup_symbol_in_static_block (...) = %s", |
2509 | sym != NULL | |
2510 | ? host_address_to_string (sym) : "NULL"); | |
d12307c1 | 2511 | return (struct block_symbol) {sym, static_block}; |
5f9a71c3 DC |
2512 | } |
2513 | ||
af3768e9 DE |
2514 | /* Perform the standard symbol lookup of NAME in OBJFILE: |
2515 | 1) First search expanded symtabs, and if not found | |
2516 | 2) Search the "quick" symtabs (partial or .gdb_index). | |
2517 | BLOCK_INDEX is one of GLOBAL_BLOCK or STATIC_BLOCK. */ | |
2518 | ||
d12307c1 | 2519 | static struct block_symbol |
c32e6a04 | 2520 | lookup_symbol_in_objfile (struct objfile *objfile, enum block_enum block_index, |
af3768e9 DE |
2521 | const char *name, const domain_enum domain) |
2522 | { | |
d12307c1 | 2523 | struct block_symbol result; |
af3768e9 | 2524 | |
c32e6a04 CB |
2525 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2526 | ||
b1e678d9 AB |
2527 | symbol_lookup_debug_printf ("lookup_symbol_in_objfile (%s, %s, %s, %s)", |
2528 | objfile_debug_name (objfile), | |
2529 | block_index == GLOBAL_BLOCK | |
2530 | ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
2531 | name, domain_name (domain)); | |
cc485e62 | 2532 | |
af3768e9 DE |
2533 | result = lookup_symbol_in_objfile_symtabs (objfile, block_index, |
2534 | name, domain); | |
d12307c1 | 2535 | if (result.symbol != NULL) |
af3768e9 | 2536 | { |
b1e678d9 AB |
2537 | symbol_lookup_debug_printf |
2538 | ("lookup_symbol_in_objfile (...) = %s (in symtabs)", | |
2539 | host_address_to_string (result.symbol)); | |
cc485e62 | 2540 | return result; |
af3768e9 DE |
2541 | } |
2542 | ||
cc485e62 DE |
2543 | result = lookup_symbol_via_quick_fns (objfile, block_index, |
2544 | name, domain); | |
b1e678d9 AB |
2545 | symbol_lookup_debug_printf ("lookup_symbol_in_objfile (...) = %s%s", |
2546 | result.symbol != NULL | |
2547 | ? host_address_to_string (result.symbol) | |
2548 | : "NULL", | |
2549 | result.symbol != NULL ? " (via quick fns)" | |
2550 | : ""); | |
af3768e9 DE |
2551 | return result; |
2552 | } | |
2553 | ||
9aa55206 CB |
2554 | /* This function contains the common code of lookup_{global,static}_symbol. |
2555 | OBJFILE is only used if BLOCK_INDEX is GLOBAL_SCOPE, in which case it is | |
2556 | the objfile to start the lookup in. */ | |
5f9a71c3 | 2557 | |
9aa55206 CB |
2558 | static struct block_symbol |
2559 | lookup_global_or_static_symbol (const char *name, | |
2560 | enum block_enum block_index, | |
2561 | struct objfile *objfile, | |
2562 | const domain_enum domain) | |
5f9a71c3 | 2563 | { |
f57d2163 | 2564 | struct symbol_cache *cache = get_symbol_cache (current_program_space); |
d12307c1 | 2565 | struct block_symbol result; |
f57d2163 DE |
2566 | struct block_symbol_cache *bsc; |
2567 | struct symbol_cache_slot *slot; | |
b2fb95e0 | 2568 | |
9aa55206 CB |
2569 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2570 | gdb_assert (objfile == nullptr || block_index == GLOBAL_BLOCK); | |
f57d2163 DE |
2571 | |
2572 | /* First see if we can find the symbol in the cache. | |
2573 | This works because we use the current objfile to qualify the lookup. */ | |
9aa55206 | 2574 | result = symbol_cache_lookup (cache, objfile, block_index, name, domain, |
d12307c1 PMR |
2575 | &bsc, &slot); |
2576 | if (result.symbol != NULL) | |
f57d2163 | 2577 | { |
d12307c1 | 2578 | if (SYMBOL_LOOKUP_FAILED_P (result)) |
6640a367 | 2579 | return {}; |
d12307c1 | 2580 | return result; |
f57d2163 DE |
2581 | } |
2582 | ||
626ca2c0 | 2583 | /* Do a global search (of global blocks, heh). */ |
d12307c1 | 2584 | if (result.symbol == NULL) |
6e9cd73e | 2585 | gdbarch_iterate_over_objfiles_in_search_order |
99d9c3b9 | 2586 | (objfile != NULL ? objfile->arch () : current_inferior ()->arch (), |
6e9cd73e SM |
2587 | [&result, block_index, name, domain] (struct objfile *objfile_iter) |
2588 | { | |
2589 | result = lookup_symbol_in_objfile (objfile_iter, block_index, | |
2590 | name, domain); | |
2591 | return result.symbol != nullptr; | |
2592 | }, | |
2593 | objfile); | |
6a3ca067 | 2594 | |
d12307c1 PMR |
2595 | if (result.symbol != NULL) |
2596 | symbol_cache_mark_found (bsc, slot, objfile, result.symbol, result.block); | |
f57d2163 DE |
2597 | else |
2598 | symbol_cache_mark_not_found (bsc, slot, objfile, name, domain); | |
2599 | ||
d12307c1 | 2600 | return result; |
5f9a71c3 DC |
2601 | } |
2602 | ||
9aa55206 CB |
2603 | /* See symtab.h. */ |
2604 | ||
2605 | struct block_symbol | |
2606 | lookup_static_symbol (const char *name, const domain_enum domain) | |
2607 | { | |
2608 | return lookup_global_or_static_symbol (name, STATIC_BLOCK, nullptr, domain); | |
2609 | } | |
2610 | ||
2611 | /* See symtab.h. */ | |
2612 | ||
2613 | struct block_symbol | |
2614 | lookup_global_symbol (const char *name, | |
2615 | const struct block *block, | |
2616 | const domain_enum domain) | |
2617 | { | |
d3d32391 AB |
2618 | /* If a block was passed in, we want to search the corresponding |
2619 | global block first. This yields "more expected" behavior, and is | |
2620 | needed to support 'FILENAME'::VARIABLE lookups. */ | |
8f14fd11 | 2621 | const struct block *global_block |
d24e14a0 | 2622 | = block == nullptr ? nullptr : block->global_block (); |
70bc38f5 | 2623 | symbol *sym = NULL; |
d3d32391 AB |
2624 | if (global_block != nullptr) |
2625 | { | |
70bc38f5 TV |
2626 | sym = lookup_symbol_in_block (name, |
2627 | symbol_name_match_type::FULL, | |
2628 | global_block, domain); | |
2629 | if (sym != NULL && best_symbol (sym, domain)) | |
d3d32391 AB |
2630 | return { sym, global_block }; |
2631 | } | |
2632 | ||
d6bc0792 TT |
2633 | struct objfile *objfile = nullptr; |
2634 | if (block != nullptr) | |
2635 | { | |
46baa3c6 | 2636 | objfile = block->objfile (); |
d6bc0792 TT |
2637 | if (objfile->separate_debug_objfile_backlink != nullptr) |
2638 | objfile = objfile->separate_debug_objfile_backlink; | |
2639 | } | |
2640 | ||
70bc38f5 TV |
2641 | block_symbol bs |
2642 | = lookup_global_or_static_symbol (name, GLOBAL_BLOCK, objfile, domain); | |
2643 | if (better_symbol (sym, bs.symbol, domain) == sym) | |
2644 | return { sym, global_block }; | |
2645 | else | |
2646 | return bs; | |
9aa55206 CB |
2647 | } |
2648 | ||
ececd218 | 2649 | bool |
4186eb54 KS |
2650 | symbol_matches_domain (enum language symbol_language, |
2651 | domain_enum symbol_domain, | |
2652 | domain_enum domain) | |
2653 | { | |
2654 | /* For C++ "struct foo { ... }" also defines a typedef for "foo". | |
4186eb54 KS |
2655 | Similarly, any Ada type declaration implicitly defines a typedef. */ |
2656 | if (symbol_language == language_cplus | |
2657 | || symbol_language == language_d | |
65547233 TT |
2658 | || symbol_language == language_ada |
2659 | || symbol_language == language_rust) | |
4186eb54 KS |
2660 | { |
2661 | if ((domain == VAR_DOMAIN || domain == STRUCT_DOMAIN) | |
2662 | && symbol_domain == STRUCT_DOMAIN) | |
ececd218 | 2663 | return true; |
4186eb54 KS |
2664 | } |
2665 | /* For all other languages, strict match is required. */ | |
2666 | return (symbol_domain == domain); | |
2667 | } | |
2668 | ||
cf901d3b | 2669 | /* See symtab.h. */ |
c906108c | 2670 | |
ccefe4c4 TT |
2671 | struct type * |
2672 | lookup_transparent_type (const char *name) | |
c906108c | 2673 | { |
54f4ca46 | 2674 | return current_language->lookup_transparent_type (name); |
ccefe4c4 | 2675 | } |
9af17804 | 2676 | |
ccefe4c4 TT |
2677 | /* A helper for basic_lookup_transparent_type that interfaces with the |
2678 | "quick" symbol table functions. */ | |
357e46e7 | 2679 | |
ccefe4c4 | 2680 | static struct type * |
ddbcedf5 CB |
2681 | basic_lookup_transparent_type_quick (struct objfile *objfile, |
2682 | enum block_enum block_index, | |
ccefe4c4 TT |
2683 | const char *name) |
2684 | { | |
43f3e411 | 2685 | struct compunit_symtab *cust; |
346d1dfe | 2686 | const struct blockvector *bv; |
582942f4 | 2687 | const struct block *block; |
ccefe4c4 | 2688 | struct symbol *sym; |
c906108c | 2689 | |
4d080b46 | 2690 | cust = objfile->lookup_symbol (block_index, name, STRUCT_DOMAIN); |
43f3e411 | 2691 | if (cust == NULL) |
ccefe4c4 | 2692 | return NULL; |
c906108c | 2693 | |
af39c5c8 | 2694 | bv = cust->blockvector (); |
63d609de | 2695 | block = bv->block (block_index); |
b7a92724 TT |
2696 | |
2697 | lookup_name_info lookup_name (name, symbol_name_match_type::FULL); | |
2698 | sym = block_find_symbol (block, lookup_name, STRUCT_DOMAIN, nullptr); | |
2699 | if (sym == nullptr) | |
43f3e411 | 2700 | error_in_psymtab_expansion (block_index, name, cust); |
5f9c5a63 SM |
2701 | gdb_assert (!TYPE_IS_OPAQUE (sym->type ())); |
2702 | return sym->type (); | |
b2e2f908 | 2703 | } |
08c23b0d | 2704 | |
b2e2f908 DE |
2705 | /* Subroutine of basic_lookup_transparent_type to simplify it. |
2706 | Look up the non-opaque definition of NAME in BLOCK_INDEX of OBJFILE. | |
2707 | BLOCK_INDEX is either GLOBAL_BLOCK or STATIC_BLOCK. */ | |
2708 | ||
2709 | static struct type * | |
ddbcedf5 CB |
2710 | basic_lookup_transparent_type_1 (struct objfile *objfile, |
2711 | enum block_enum block_index, | |
b2e2f908 DE |
2712 | const char *name) |
2713 | { | |
b2e2f908 DE |
2714 | const struct blockvector *bv; |
2715 | const struct block *block; | |
2716 | const struct symbol *sym; | |
2717 | ||
b7a92724 | 2718 | lookup_name_info lookup_name (name, symbol_name_match_type::FULL); |
b669c953 | 2719 | for (compunit_symtab *cust : objfile->compunits ()) |
b2e2f908 | 2720 | { |
af39c5c8 | 2721 | bv = cust->blockvector (); |
63d609de | 2722 | block = bv->block (block_index); |
b7a92724 TT |
2723 | sym = block_find_symbol (block, lookup_name, STRUCT_DOMAIN, nullptr); |
2724 | if (sym != nullptr) | |
b2e2f908 | 2725 | { |
5f9c5a63 SM |
2726 | gdb_assert (!TYPE_IS_OPAQUE (sym->type ())); |
2727 | return sym->type (); | |
b2e2f908 DE |
2728 | } |
2729 | } | |
c906108c | 2730 | |
ccefe4c4 | 2731 | return NULL; |
b368761e | 2732 | } |
c906108c | 2733 | |
b368761e DC |
2734 | /* The standard implementation of lookup_transparent_type. This code |
2735 | was modeled on lookup_symbol -- the parts not relevant to looking | |
2736 | up types were just left out. In particular it's assumed here that | |
cf901d3b | 2737 | types are available in STRUCT_DOMAIN and only in file-static or |
b368761e | 2738 | global blocks. */ |
c906108c SS |
2739 | |
2740 | struct type * | |
b368761e | 2741 | basic_lookup_transparent_type (const char *name) |
c906108c | 2742 | { |
ccefe4c4 | 2743 | struct type *t; |
c906108c SS |
2744 | |
2745 | /* Now search all the global symbols. Do the symtab's first, then | |
c378eb4e | 2746 | check the psymtab's. If a psymtab indicates the existence |
c906108c SS |
2747 | of the desired name as a global, then do psymtab-to-symtab |
2748 | conversion on the fly and return the found symbol. */ | |
c5aa993b | 2749 | |
2030c079 | 2750 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2751 | { |
2752 | t = basic_lookup_transparent_type_1 (objfile, GLOBAL_BLOCK, name); | |
2753 | if (t) | |
2754 | return t; | |
2755 | } | |
c906108c | 2756 | |
2030c079 | 2757 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2758 | { |
2759 | t = basic_lookup_transparent_type_quick (objfile, GLOBAL_BLOCK, name); | |
2760 | if (t) | |
2761 | return t; | |
2762 | } | |
c906108c SS |
2763 | |
2764 | /* Now search the static file-level symbols. | |
2765 | Not strictly correct, but more useful than an error. | |
2766 | Do the symtab's first, then | |
c378eb4e | 2767 | check the psymtab's. If a psymtab indicates the existence |
c906108c | 2768 | of the desired name as a file-level static, then do psymtab-to-symtab |
c378eb4e | 2769 | conversion on the fly and return the found symbol. */ |
c906108c | 2770 | |
2030c079 | 2771 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2772 | { |
2773 | t = basic_lookup_transparent_type_1 (objfile, STATIC_BLOCK, name); | |
2774 | if (t) | |
2775 | return t; | |
2776 | } | |
c906108c | 2777 | |
2030c079 | 2778 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2779 | { |
2780 | t = basic_lookup_transparent_type_quick (objfile, STATIC_BLOCK, name); | |
2781 | if (t) | |
2782 | return t; | |
2783 | } | |
ccefe4c4 | 2784 | |
c906108c SS |
2785 | return (struct type *) 0; |
2786 | } | |
2787 | ||
6969f124 | 2788 | /* See symtab.h. */ |
f8eba3c6 | 2789 | |
6969f124 | 2790 | bool |
b5ec771e PA |
2791 | iterate_over_symbols (const struct block *block, |
2792 | const lookup_name_info &name, | |
f8eba3c6 | 2793 | const domain_enum domain, |
14bc53a8 | 2794 | gdb::function_view<symbol_found_callback_ftype> callback) |
f8eba3c6 | 2795 | { |
a1b29426 | 2796 | for (struct symbol *sym : block_iterator_range (block, &name)) |
4eeaa230 | 2797 | { |
911e1e79 | 2798 | if (sym->matches (domain)) |
f8eba3c6 | 2799 | { |
7e41c8db KS |
2800 | struct block_symbol block_sym = {sym, block}; |
2801 | ||
2802 | if (!callback (&block_sym)) | |
6969f124 | 2803 | return false; |
f8eba3c6 | 2804 | } |
f8eba3c6 | 2805 | } |
6969f124 | 2806 | return true; |
f8eba3c6 TT |
2807 | } |
2808 | ||
6a3dbf1b TT |
2809 | /* See symtab.h. */ |
2810 | ||
2811 | bool | |
2812 | iterate_over_symbols_terminated | |
2813 | (const struct block *block, | |
2814 | const lookup_name_info &name, | |
2815 | const domain_enum domain, | |
2816 | gdb::function_view<symbol_found_callback_ftype> callback) | |
2817 | { | |
2818 | if (!iterate_over_symbols (block, name, domain, callback)) | |
2819 | return false; | |
2820 | struct block_symbol block_sym = {nullptr, block}; | |
2821 | return callback (&block_sym); | |
2822 | } | |
2823 | ||
43f3e411 DE |
2824 | /* Find the compunit symtab associated with PC and SECTION. |
2825 | This will read in debug info as necessary. */ | |
c906108c | 2826 | |
43f3e411 DE |
2827 | struct compunit_symtab * |
2828 | find_pc_sect_compunit_symtab (CORE_ADDR pc, struct obj_section *section) | |
c906108c | 2829 | { |
43f3e411 | 2830 | struct compunit_symtab *best_cust = NULL; |
61eb46a4 | 2831 | CORE_ADDR best_cust_range = 0; |
77e371c0 | 2832 | struct bound_minimal_symbol msymbol; |
8a48e967 DJ |
2833 | |
2834 | /* If we know that this is not a text address, return failure. This is | |
2835 | necessary because we loop based on the block's high and low code | |
2836 | addresses, which do not include the data ranges, and because | |
2837 | we call find_pc_sect_psymtab which has a similar restriction based | |
2838 | on the partial_symtab's texthigh and textlow. */ | |
77e371c0 | 2839 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); |
1ed9f74e | 2840 | if (msymbol.minsym && msymbol.minsym->data_p ()) |
8a48e967 | 2841 | return NULL; |
c906108c SS |
2842 | |
2843 | /* Search all symtabs for the one whose file contains our address, and which | |
2844 | is the smallest of all the ones containing the address. This is designed | |
2845 | to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000 | |
2846 | and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from | |
2847 | 0x1000-0x4000, but for address 0x2345 we want to return symtab b. | |
2848 | ||
2849 | This happens for native ecoff format, where code from included files | |
c378eb4e | 2850 | gets its own symtab. The symtab for the included file should have |
c906108c SS |
2851 | been read in already via the dependency mechanism. |
2852 | It might be swifter to create several symtabs with the same name | |
2853 | like xcoff does (I'm not sure). | |
2854 | ||
2855 | It also happens for objfiles that have their functions reordered. | |
2856 | For these, the symtab we are looking for is not necessarily read in. */ | |
2857 | ||
2030c079 | 2858 | for (objfile *obj_file : current_program_space->objfiles ()) |
d8aeb77f | 2859 | { |
b669c953 | 2860 | for (compunit_symtab *cust : obj_file->compunits ()) |
d8aeb77f | 2861 | { |
af39c5c8 | 2862 | const struct blockvector *bv = cust->blockvector (); |
63d609de | 2863 | const struct block *global_block = bv->global_block (); |
4b8791e1 SM |
2864 | CORE_ADDR start = global_block->start (); |
2865 | CORE_ADDR end = global_block->end (); | |
61eb46a4 TV |
2866 | bool in_range_p = start <= pc && pc < end; |
2867 | if (!in_range_p) | |
2868 | continue; | |
43f3e411 | 2869 | |
414705d1 | 2870 | if (bv->map () != nullptr) |
1b00ef06 | 2871 | { |
769520b7 | 2872 | if (bv->map ()->find (pc) == nullptr) |
1b00ef06 TV |
2873 | continue; |
2874 | ||
2875 | return cust; | |
2876 | } | |
2877 | ||
61eb46a4 TV |
2878 | CORE_ADDR range = end - start; |
2879 | if (best_cust != nullptr | |
2880 | && range >= best_cust_range) | |
2881 | /* Cust doesn't have a smaller range than best_cust, skip it. */ | |
2882 | continue; | |
2883 | ||
2884 | /* For an objfile that has its functions reordered, | |
2885 | find_pc_psymtab will find the proper partial symbol table | |
2886 | and we simply return its corresponding symtab. */ | |
2887 | /* In order to better support objfiles that contain both | |
2888 | stabs and coff debugging info, we continue on if a psymtab | |
2889 | can't be found. */ | |
100e3935 TT |
2890 | struct compunit_symtab *result |
2891 | = obj_file->find_pc_sect_compunit_symtab (msymbol, pc, | |
2892 | section, 0); | |
2893 | if (result != nullptr) | |
2894 | return result; | |
c906108c | 2895 | |
61eb46a4 | 2896 | if (section != 0) |
d8aeb77f | 2897 | { |
548a89df | 2898 | struct symbol *found_sym = nullptr; |
61eb46a4 | 2899 | |
bd24c5d6 | 2900 | for (int b_index = GLOBAL_BLOCK; |
548a89df | 2901 | b_index <= STATIC_BLOCK && found_sym == nullptr; |
bd24c5d6 | 2902 | ++b_index) |
d8aeb77f | 2903 | { |
63d609de | 2904 | const struct block *b = bv->block (b_index); |
548a89df | 2905 | for (struct symbol *sym : block_iterator_range (b)) |
bd24c5d6 | 2906 | { |
ebbc3a7d | 2907 | if (matching_obj_sections (sym->obj_section (obj_file), |
bd24c5d6 | 2908 | section)) |
548a89df TT |
2909 | { |
2910 | found_sym = sym; | |
2911 | break; | |
2912 | } | |
bd24c5d6 | 2913 | } |
d8aeb77f | 2914 | } |
548a89df | 2915 | if (found_sym == nullptr) |
61eb46a4 | 2916 | continue; /* No symbol in this symtab matches |
d8aeb77f | 2917 | section. */ |
d8aeb77f | 2918 | } |
61eb46a4 TV |
2919 | |
2920 | /* Cust is best found sofar, save it. */ | |
2921 | best_cust = cust; | |
2922 | best_cust_range = range; | |
d8aeb77f TT |
2923 | } |
2924 | } | |
c906108c | 2925 | |
43f3e411 DE |
2926 | if (best_cust != NULL) |
2927 | return best_cust; | |
c906108c | 2928 | |
072cabfe DE |
2929 | /* Not found in symtabs, search the "quick" symtabs (e.g. psymtabs). */ |
2930 | ||
2030c079 | 2931 | for (objfile *objf : current_program_space->objfiles ()) |
aed57c53 | 2932 | { |
4d080b46 TT |
2933 | struct compunit_symtab *result |
2934 | = objf->find_pc_sect_compunit_symtab (msymbol, pc, section, 1); | |
aed57c53 TT |
2935 | if (result != NULL) |
2936 | return result; | |
2937 | } | |
ccefe4c4 TT |
2938 | |
2939 | return NULL; | |
c906108c SS |
2940 | } |
2941 | ||
43f3e411 DE |
2942 | /* Find the compunit symtab associated with PC. |
2943 | This will read in debug info as necessary. | |
2944 | Backward compatibility, no section. */ | |
c906108c | 2945 | |
43f3e411 DE |
2946 | struct compunit_symtab * |
2947 | find_pc_compunit_symtab (CORE_ADDR pc) | |
c906108c | 2948 | { |
43f3e411 | 2949 | return find_pc_sect_compunit_symtab (pc, find_pc_mapped_section (pc)); |
c906108c | 2950 | } |
71a3c369 TT |
2951 | |
2952 | /* See symtab.h. */ | |
2953 | ||
2954 | struct symbol * | |
2955 | find_symbol_at_address (CORE_ADDR address) | |
2956 | { | |
1f2624a3 TT |
2957 | /* A helper function to search a given symtab for a symbol matching |
2958 | ADDR. */ | |
2959 | auto search_symtab = [] (compunit_symtab *symtab, CORE_ADDR addr) -> symbol * | |
aed57c53 | 2960 | { |
af39c5c8 | 2961 | const struct blockvector *bv = symtab->blockvector (); |
71a3c369 | 2962 | |
1f2624a3 | 2963 | for (int i = GLOBAL_BLOCK; i <= STATIC_BLOCK; ++i) |
aed57c53 | 2964 | { |
63d609de | 2965 | const struct block *b = bv->block (i); |
71a3c369 | 2966 | |
548a89df | 2967 | for (struct symbol *sym : block_iterator_range (b)) |
71a3c369 | 2968 | { |
66d7f48f | 2969 | if (sym->aclass () == LOC_STATIC |
4aeddc50 | 2970 | && sym->value_address () == addr) |
1f2624a3 TT |
2971 | return sym; |
2972 | } | |
2973 | } | |
2974 | return nullptr; | |
2975 | }; | |
aed57c53 | 2976 | |
1f2624a3 TT |
2977 | for (objfile *objfile : current_program_space->objfiles ()) |
2978 | { | |
4d080b46 TT |
2979 | /* If this objfile was read with -readnow, then we need to |
2980 | search the symtabs directly. */ | |
2981 | if ((objfile->flags & OBJF_READNOW) != 0) | |
1f2624a3 TT |
2982 | { |
2983 | for (compunit_symtab *symtab : objfile->compunits ()) | |
2984 | { | |
2985 | struct symbol *sym = search_symtab (symtab, address); | |
2986 | if (sym != nullptr) | |
2987 | return sym; | |
2988 | } | |
2989 | } | |
2990 | else | |
2991 | { | |
2992 | struct compunit_symtab *symtab | |
4d080b46 | 2993 | = objfile->find_compunit_symtab_by_address (address); |
1f2624a3 TT |
2994 | if (symtab != NULL) |
2995 | { | |
2996 | struct symbol *sym = search_symtab (symtab, address); | |
2997 | if (sym != nullptr) | |
2998 | return sym; | |
71a3c369 | 2999 | } |
aed57c53 TT |
3000 | } |
3001 | } | |
71a3c369 TT |
3002 | |
3003 | return NULL; | |
3004 | } | |
3005 | ||
c906108c | 3006 | \f |
c5aa993b | 3007 | |
7e73cedf | 3008 | /* Find the source file and line number for a given PC value and SECTION. |
c906108c SS |
3009 | Return a structure containing a symtab pointer, a line number, |
3010 | and a pc range for the entire source line. | |
3011 | The value's .pc field is NOT the specified pc. | |
3012 | NOTCURRENT nonzero means, if specified pc is on a line boundary, | |
3013 | use the line that ends there. Otherwise, in that case, the line | |
3014 | that begins there is used. */ | |
3015 | ||
3016 | /* The big complication here is that a line may start in one file, and end just | |
3017 | before the start of another file. This usually occurs when you #include | |
3018 | code in the middle of a subroutine. To properly find the end of a line's PC | |
3019 | range, we must search all symtabs associated with this compilation unit, and | |
3020 | find the one whose first PC is closer than that of the next line in this | |
3021 | symtab. */ | |
3022 | ||
c906108c | 3023 | struct symtab_and_line |
714835d5 | 3024 | find_pc_sect_line (CORE_ADDR pc, struct obj_section *section, int notcurrent) |
c906108c | 3025 | { |
43f3e411 | 3026 | struct compunit_symtab *cust; |
977a0c16 | 3027 | const linetable *l; |
52f0bd74 | 3028 | int len; |
977a0c16 | 3029 | const linetable_entry *item; |
346d1dfe | 3030 | const struct blockvector *bv; |
7cbd4a93 | 3031 | struct bound_minimal_symbol msymbol; |
c906108c SS |
3032 | |
3033 | /* Info on best line seen so far, and where it starts, and its file. */ | |
3034 | ||
977a0c16 | 3035 | const linetable_entry *best = NULL; |
c906108c SS |
3036 | CORE_ADDR best_end = 0; |
3037 | struct symtab *best_symtab = 0; | |
3038 | ||
3039 | /* Store here the first line number | |
3040 | of a file which contains the line at the smallest pc after PC. | |
3041 | If we don't find a line whose range contains PC, | |
3042 | we will use a line one less than this, | |
3043 | with a range from the start of that file to the first line's pc. */ | |
977a0c16 | 3044 | const linetable_entry *alt = NULL; |
c906108c SS |
3045 | |
3046 | /* Info on best line seen in this file. */ | |
3047 | ||
977a0c16 | 3048 | const linetable_entry *prev; |
c906108c SS |
3049 | |
3050 | /* If this pc is not from the current frame, | |
3051 | it is the address of the end of a call instruction. | |
3052 | Quite likely that is the start of the following statement. | |
3053 | But what we want is the statement containing the instruction. | |
3054 | Fudge the pc to make sure we get that. */ | |
3055 | ||
b77b1eb7 JB |
3056 | /* It's tempting to assume that, if we can't find debugging info for |
3057 | any function enclosing PC, that we shouldn't search for line | |
3058 | number info, either. However, GAS can emit line number info for | |
3059 | assembly files --- very helpful when debugging hand-written | |
3060 | assembly code. In such a case, we'd have no debug info for the | |
3061 | function, but we would have line info. */ | |
648f4f79 | 3062 | |
c906108c SS |
3063 | if (notcurrent) |
3064 | pc -= 1; | |
3065 | ||
c5aa993b | 3066 | /* elz: added this because this function returned the wrong |
c906108c | 3067 | information if the pc belongs to a stub (import/export) |
c378eb4e | 3068 | to call a shlib function. This stub would be anywhere between |
9af17804 | 3069 | two functions in the target, and the line info was erroneously |
c378eb4e MS |
3070 | taken to be the one of the line before the pc. */ |
3071 | ||
c906108c | 3072 | /* RT: Further explanation: |
c5aa993b | 3073 | |
c906108c SS |
3074 | * We have stubs (trampolines) inserted between procedures. |
3075 | * | |
3076 | * Example: "shr1" exists in a shared library, and a "shr1" stub also | |
3077 | * exists in the main image. | |
3078 | * | |
3079 | * In the minimal symbol table, we have a bunch of symbols | |
c378eb4e | 3080 | * sorted by start address. The stubs are marked as "trampoline", |
c906108c SS |
3081 | * the others appear as text. E.g.: |
3082 | * | |
9af17804 | 3083 | * Minimal symbol table for main image |
c906108c SS |
3084 | * main: code for main (text symbol) |
3085 | * shr1: stub (trampoline symbol) | |
3086 | * foo: code for foo (text symbol) | |
3087 | * ... | |
3088 | * Minimal symbol table for "shr1" image: | |
3089 | * ... | |
3090 | * shr1: code for shr1 (text symbol) | |
3091 | * ... | |
3092 | * | |
3093 | * So the code below is trying to detect if we are in the stub | |
3094 | * ("shr1" stub), and if so, find the real code ("shr1" trampoline), | |
3095 | * and if found, do the symbolization from the real-code address | |
3096 | * rather than the stub address. | |
3097 | * | |
3098 | * Assumptions being made about the minimal symbol table: | |
3099 | * 1. lookup_minimal_symbol_by_pc() will return a trampoline only | |
c378eb4e | 3100 | * if we're really in the trampoline.s If we're beyond it (say |
9af17804 | 3101 | * we're in "foo" in the above example), it'll have a closer |
c906108c SS |
3102 | * symbol (the "foo" text symbol for example) and will not |
3103 | * return the trampoline. | |
3104 | * 2. lookup_minimal_symbol_text() will find a real text symbol | |
3105 | * corresponding to the trampoline, and whose address will | |
c378eb4e | 3106 | * be different than the trampoline address. I put in a sanity |
c906108c SS |
3107 | * check for the address being the same, to avoid an |
3108 | * infinite recursion. | |
3109 | */ | |
c5aa993b | 3110 | msymbol = lookup_minimal_symbol_by_pc (pc); |
7cbd4a93 | 3111 | if (msymbol.minsym != NULL) |
60f62e2b | 3112 | if (msymbol.minsym->type () == mst_solib_trampoline) |
c5aa993b | 3113 | { |
77e371c0 | 3114 | struct bound_minimal_symbol mfunsym |
c9d95fa3 | 3115 | = lookup_minimal_symbol_text (msymbol.minsym->linkage_name (), |
77e371c0 TT |
3116 | NULL); |
3117 | ||
3118 | if (mfunsym.minsym == NULL) | |
c5aa993b JM |
3119 | /* I eliminated this warning since it is coming out |
3120 | * in the following situation: | |
3121 | * gdb shmain // test program with shared libraries | |
3122 | * (gdb) break shr1 // function in shared lib | |
3123 | * Warning: In stub for ... | |
9af17804 | 3124 | * In the above situation, the shared lib is not loaded yet, |
c5aa993b JM |
3125 | * so of course we can't find the real func/line info, |
3126 | * but the "break" still works, and the warning is annoying. | |
c378eb4e | 3127 | * So I commented out the warning. RT */ |
3e43a32a | 3128 | /* warning ("In stub for %s; unable to find real function/line info", |
987012b8 | 3129 | msymbol->linkage_name ()); */ |
c378eb4e | 3130 | ; |
c5aa993b | 3131 | /* fall through */ |
4aeddc50 SM |
3132 | else if (mfunsym.value_address () |
3133 | == msymbol.value_address ()) | |
c5aa993b | 3134 | /* Avoid infinite recursion */ |
c378eb4e | 3135 | /* See above comment about why warning is commented out. */ |
3e43a32a | 3136 | /* warning ("In stub for %s; unable to find real function/line info", |
987012b8 | 3137 | msymbol->linkage_name ()); */ |
c378eb4e | 3138 | ; |
c5aa993b JM |
3139 | /* fall through */ |
3140 | else | |
dd69bf7a KB |
3141 | { |
3142 | /* Detect an obvious case of infinite recursion. If this | |
3143 | should occur, we'd like to know about it, so error out, | |
3144 | fatally. */ | |
4aeddc50 | 3145 | if (mfunsym.value_address () == pc) |
f34652de | 3146 | internal_error (_("Infinite recursion detected in find_pc_sect_line;" |
dd69bf7a KB |
3147 | "please file a bug report")); |
3148 | ||
4aeddc50 | 3149 | return find_pc_line (mfunsym.value_address (), 0); |
dd69bf7a | 3150 | } |
c5aa993b | 3151 | } |
c906108c | 3152 | |
51abb421 PA |
3153 | symtab_and_line val; |
3154 | val.pspace = current_program_space; | |
c906108c | 3155 | |
43f3e411 DE |
3156 | cust = find_pc_sect_compunit_symtab (pc, section); |
3157 | if (cust == NULL) | |
c906108c | 3158 | { |
c378eb4e | 3159 | /* If no symbol information, return previous pc. */ |
c906108c SS |
3160 | if (notcurrent) |
3161 | pc++; | |
3162 | val.pc = pc; | |
3163 | return val; | |
3164 | } | |
3165 | ||
af39c5c8 | 3166 | bv = cust->blockvector (); |
1acc9dca | 3167 | struct objfile *objfile = cust->objfile (); |
c906108c SS |
3168 | |
3169 | /* Look at all the symtabs that share this blockvector. | |
3170 | They all have the same apriori range, that we found was right; | |
3171 | but they have different line tables. */ | |
3172 | ||
102cc235 | 3173 | for (symtab *iter_s : cust->filetabs ()) |
c906108c SS |
3174 | { |
3175 | /* Find the best line in this symtab. */ | |
5b607461 | 3176 | l = iter_s->linetable (); |
c906108c | 3177 | if (!l) |
c5aa993b | 3178 | continue; |
c906108c SS |
3179 | len = l->nitems; |
3180 | if (len <= 0) | |
3181 | { | |
3182 | /* I think len can be zero if the symtab lacks line numbers | |
3183 | (e.g. gcc -g1). (Either that or the LINETABLE is NULL; | |
3184 | I'm not sure which, and maybe it depends on the symbol | |
3185 | reader). */ | |
3186 | continue; | |
3187 | } | |
3188 | ||
3189 | prev = NULL; | |
c378eb4e | 3190 | item = l->item; /* Get first line info. */ |
c906108c SS |
3191 | |
3192 | /* Is this file's first line closer than the first lines of other files? | |
dda83cd7 | 3193 | If so, record this file, and its first line, as best alternate. */ |
1acc9dca | 3194 | if (item->pc (objfile) > pc |
0434c3ef | 3195 | && (!alt || item->unrelocated_pc () < alt->unrelocated_pc ())) |
c656bca5 | 3196 | alt = item; |
c906108c | 3197 | |
48e0f38c TT |
3198 | auto pc_compare = [] (const unrelocated_addr &comp_pc, |
3199 | const struct linetable_entry & lhs) | |
7cbe16e9 | 3200 | { |
0434c3ef | 3201 | return comp_pc < lhs.unrelocated_pc (); |
7cbe16e9 | 3202 | }; |
c906108c | 3203 | |
977a0c16 TT |
3204 | const linetable_entry *first = item; |
3205 | const linetable_entry *last = item + len; | |
48e0f38c TT |
3206 | item = (std::upper_bound |
3207 | (first, last, | |
3208 | unrelocated_addr (pc - objfile->text_section_offset ()), | |
3209 | pc_compare)); | |
7cbe16e9 | 3210 | if (item != first) |
aaba0d3a GL |
3211 | { |
3212 | prev = item - 1; /* Found a matching item. */ | |
3213 | /* At this point, prev is a line whose address is <= pc. However, we | |
3214 | don't know if ITEM is pointing to the same statement or not. */ | |
3215 | while (item != last && prev->line == item->line && !item->is_stmt) | |
3216 | item++; | |
3217 | } | |
c906108c SS |
3218 | |
3219 | /* At this point, prev points at the line whose start addr is <= pc, and | |
aaba0d3a | 3220 | item points at the next statement. If we ran off the end of the linetable |
dda83cd7 SM |
3221 | (pc >= start of the last line), then prev == item. If pc < start of |
3222 | the first line, prev will not be set. */ | |
c906108c SS |
3223 | |
3224 | /* Is this file's best line closer than the best in the other files? | |
dda83cd7 SM |
3225 | If so, record this file, and its best line, as best so far. Don't |
3226 | save prev if it represents the end of a function (i.e. line number | |
3227 | 0) instead of a real line. */ | |
c906108c | 3228 | |
0434c3ef TT |
3229 | if (prev && prev->line |
3230 | && (!best || prev->unrelocated_pc () > best->unrelocated_pc ())) | |
c906108c SS |
3231 | { |
3232 | best = prev; | |
43f3e411 | 3233 | best_symtab = iter_s; |
25d53da1 | 3234 | |
8c95582d AB |
3235 | /* If during the binary search we land on a non-statement entry, |
3236 | scan backward through entries at the same address to see if | |
3237 | there is an entry marked as is-statement. In theory this | |
3238 | duplication should have been removed from the line table | |
3239 | during construction, this is just a double check. If the line | |
3240 | table has had the duplication removed then this should be | |
3241 | pretty cheap. */ | |
3242 | if (!best->is_stmt) | |
3243 | { | |
977a0c16 | 3244 | const linetable_entry *tmp = best; |
0434c3ef TT |
3245 | while (tmp > first |
3246 | && (tmp - 1)->unrelocated_pc () == tmp->unrelocated_pc () | |
8c95582d AB |
3247 | && (tmp - 1)->line != 0 && !tmp->is_stmt) |
3248 | --tmp; | |
3249 | if (tmp->is_stmt) | |
3250 | best = tmp; | |
3251 | } | |
3252 | ||
25d53da1 | 3253 | /* Discard BEST_END if it's before the PC of the current BEST. */ |
1acc9dca | 3254 | if (best_end <= best->pc (objfile)) |
25d53da1 | 3255 | best_end = 0; |
c906108c | 3256 | } |
25d53da1 KB |
3257 | |
3258 | /* If another line (denoted by ITEM) is in the linetable and its | |
7cbe16e9 | 3259 | PC is after BEST's PC, but before the current BEST_END, then |
25d53da1 | 3260 | use ITEM's PC as the new best_end. */ |
0434c3ef TT |
3261 | if (best && item < last |
3262 | && item->unrelocated_pc () > best->unrelocated_pc () | |
1acc9dca TT |
3263 | && (best_end == 0 || best_end > item->pc (objfile))) |
3264 | best_end = item->pc (objfile); | |
c906108c SS |
3265 | } |
3266 | ||
3267 | if (!best_symtab) | |
3268 | { | |
e86e87f7 DJ |
3269 | /* If we didn't find any line number info, just return zeros. |
3270 | We used to return alt->line - 1 here, but that could be | |
3271 | anywhere; if we don't have line number info for this PC, | |
3272 | don't make some up. */ | |
3273 | val.pc = pc; | |
c906108c | 3274 | } |
e8717518 FF |
3275 | else if (best->line == 0) |
3276 | { | |
3277 | /* If our best fit is in a range of PC's for which no line | |
3278 | number info is available (line number is zero) then we didn't | |
c378eb4e | 3279 | find any valid line information. */ |
e8717518 FF |
3280 | val.pc = pc; |
3281 | } | |
c906108c SS |
3282 | else |
3283 | { | |
8c95582d | 3284 | val.is_stmt = best->is_stmt; |
c906108c SS |
3285 | val.symtab = best_symtab; |
3286 | val.line = best->line; | |
1acc9dca TT |
3287 | val.pc = best->pc (objfile); |
3288 | if (best_end && (!alt || best_end < alt->pc (objfile))) | |
c906108c SS |
3289 | val.end = best_end; |
3290 | else if (alt) | |
1acc9dca | 3291 | val.end = alt->pc (objfile); |
c906108c | 3292 | else |
63d609de | 3293 | val.end = bv->global_block ()->end (); |
c906108c SS |
3294 | } |
3295 | val.section = section; | |
3296 | return val; | |
3297 | } | |
3298 | ||
c378eb4e | 3299 | /* Backward compatibility (no section). */ |
c906108c SS |
3300 | |
3301 | struct symtab_and_line | |
fba45db2 | 3302 | find_pc_line (CORE_ADDR pc, int notcurrent) |
c906108c | 3303 | { |
714835d5 | 3304 | struct obj_section *section; |
c906108c SS |
3305 | |
3306 | section = find_pc_overlay (pc); | |
31a8f60f AB |
3307 | if (!pc_in_unmapped_range (pc, section)) |
3308 | return find_pc_sect_line (pc, section, notcurrent); | |
3309 | ||
3310 | /* If the original PC was an unmapped address then we translate this to a | |
3311 | mapped address in order to lookup the sal. However, as the user | |
3312 | passed us an unmapped address it makes more sense to return a result | |
3313 | that has the pc and end fields translated to unmapped addresses. */ | |
3314 | pc = overlay_mapped_address (pc, section); | |
3315 | symtab_and_line sal = find_pc_sect_line (pc, section, notcurrent); | |
3316 | sal.pc = overlay_unmapped_address (sal.pc, section); | |
3317 | sal.end = overlay_unmapped_address (sal.end, section); | |
3318 | return sal; | |
c906108c | 3319 | } |
34248c3a | 3320 | |
fe6356de CL |
3321 | /* Compare two symtab_and_line entries. Return true if both have |
3322 | the same line number and the same symtab pointer. That means we | |
3323 | are dealing with two entries from the same line and from the same | |
3324 | source file. | |
3325 | ||
3326 | Return false otherwise. */ | |
3327 | ||
3328 | static bool | |
3329 | sal_line_symtab_matches_p (const symtab_and_line &sal1, | |
3330 | const symtab_and_line &sal2) | |
3331 | { | |
3332 | return sal1.line == sal2.line && sal1.symtab == sal2.symtab; | |
3333 | } | |
3334 | ||
3335 | /* See symtah.h. */ | |
3336 | ||
3337 | std::optional<CORE_ADDR> | |
3338 | find_line_range_start (CORE_ADDR pc) | |
3339 | { | |
3340 | struct symtab_and_line current_sal = find_pc_line (pc, 0); | |
3341 | ||
3342 | if (current_sal.line == 0) | |
3343 | return {}; | |
3344 | ||
3345 | struct symtab_and_line prev_sal = find_pc_line (current_sal.pc - 1, 0); | |
3346 | ||
3347 | /* If the previous entry is for a different line, that means we are already | |
3348 | at the entry with the start PC for this line. */ | |
3349 | if (!sal_line_symtab_matches_p (prev_sal, current_sal)) | |
3350 | return current_sal.pc; | |
3351 | ||
3352 | /* Otherwise, keep looking for entries for the same line but with | |
3353 | smaller PC's. */ | |
3354 | bool done = false; | |
3355 | CORE_ADDR prev_pc; | |
3356 | while (!done) | |
3357 | { | |
3358 | prev_pc = prev_sal.pc; | |
3359 | ||
3360 | prev_sal = find_pc_line (prev_pc - 1, 0); | |
3361 | ||
3362 | /* Did we notice a line change? If so, we are done searching. */ | |
3363 | if (!sal_line_symtab_matches_p (prev_sal, current_sal)) | |
3364 | done = true; | |
3365 | } | |
3366 | ||
3367 | return prev_pc; | |
3368 | } | |
3369 | ||
34248c3a DE |
3370 | /* See symtab.h. */ |
3371 | ||
3372 | struct symtab * | |
3373 | find_pc_line_symtab (CORE_ADDR pc) | |
3374 | { | |
3375 | struct symtab_and_line sal; | |
3376 | ||
3377 | /* This always passes zero for NOTCURRENT to find_pc_line. | |
3378 | There are currently no callers that ever pass non-zero. */ | |
3379 | sal = find_pc_line (pc, 0); | |
3380 | return sal.symtab; | |
3381 | } | |
c906108c | 3382 | \f |
c906108c SS |
3383 | /* Find line number LINE in any symtab whose name is the same as |
3384 | SYMTAB. | |
3385 | ||
3386 | If found, return the symtab that contains the linetable in which it was | |
3387 | found, set *INDEX to the index in the linetable of the best entry | |
ececd218 | 3388 | found, and set *EXACT_MATCH to true if the value returned is an |
c906108c SS |
3389 | exact match. |
3390 | ||
3391 | If not found, return NULL. */ | |
3392 | ||
50641945 | 3393 | struct symtab * |
5accd1a0 | 3394 | find_line_symtab (struct symtab *sym_tab, int line, |
ececd218 | 3395 | int *index, bool *exact_match) |
c906108c | 3396 | { |
6f43c46f | 3397 | int exact = 0; /* Initialized here to avoid a compiler warning. */ |
c906108c SS |
3398 | |
3399 | /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE | |
3400 | so far seen. */ | |
3401 | ||
3402 | int best_index; | |
977a0c16 | 3403 | const struct linetable *best_linetable; |
c906108c SS |
3404 | struct symtab *best_symtab; |
3405 | ||
3406 | /* First try looking it up in the given symtab. */ | |
5b607461 | 3407 | best_linetable = sym_tab->linetable (); |
5accd1a0 | 3408 | best_symtab = sym_tab; |
f8eba3c6 | 3409 | best_index = find_line_common (best_linetable, line, &exact, 0); |
c906108c SS |
3410 | if (best_index < 0 || !exact) |
3411 | { | |
3412 | /* Didn't find an exact match. So we better keep looking for | |
dda83cd7 SM |
3413 | another symtab with the same name. In the case of xcoff, |
3414 | multiple csects for one source file (produced by IBM's FORTRAN | |
3415 | compiler) produce multiple symtabs (this is unavoidable | |
3416 | assuming csects can be at arbitrary places in memory and that | |
3417 | the GLOBAL_BLOCK of a symtab has a begin and end address). */ | |
c906108c SS |
3418 | |
3419 | /* BEST is the smallest linenumber > LINE so far seen, | |
dda83cd7 SM |
3420 | or 0 if none has been seen so far. |
3421 | BEST_INDEX and BEST_LINETABLE identify the item for it. */ | |
c906108c SS |
3422 | int best; |
3423 | ||
c906108c SS |
3424 | if (best_index >= 0) |
3425 | best = best_linetable->item[best_index].line; | |
3426 | else | |
3427 | best = 0; | |
3428 | ||
2030c079 | 3429 | for (objfile *objfile : current_program_space->objfiles ()) |
4d080b46 | 3430 | objfile->expand_symtabs_with_fullname (symtab_to_fullname (sym_tab)); |
51432cca | 3431 | |
2030c079 | 3432 | for (objfile *objfile : current_program_space->objfiles ()) |
8b31193a | 3433 | { |
b669c953 | 3434 | for (compunit_symtab *cu : objfile->compunits ()) |
8b31193a | 3435 | { |
102cc235 | 3436 | for (symtab *s : cu->filetabs ()) |
8b31193a | 3437 | { |
977a0c16 | 3438 | const struct linetable *l; |
8b31193a TT |
3439 | int ind; |
3440 | ||
3441 | if (FILENAME_CMP (sym_tab->filename, s->filename) != 0) | |
3442 | continue; | |
3443 | if (FILENAME_CMP (symtab_to_fullname (sym_tab), | |
3444 | symtab_to_fullname (s)) != 0) | |
3445 | continue; | |
5b607461 | 3446 | l = s->linetable (); |
8b31193a TT |
3447 | ind = find_line_common (l, line, &exact, 0); |
3448 | if (ind >= 0) | |
3449 | { | |
3450 | if (exact) | |
3451 | { | |
3452 | best_index = ind; | |
3453 | best_linetable = l; | |
3454 | best_symtab = s; | |
3455 | goto done; | |
3456 | } | |
3457 | if (best == 0 || l->item[ind].line < best) | |
3458 | { | |
3459 | best = l->item[ind].line; | |
3460 | best_index = ind; | |
3461 | best_linetable = l; | |
3462 | best_symtab = s; | |
3463 | } | |
3464 | } | |
3465 | } | |
3466 | } | |
3467 | } | |
c906108c | 3468 | } |
c5aa993b | 3469 | done: |
c906108c SS |
3470 | if (best_index < 0) |
3471 | return NULL; | |
3472 | ||
3473 | if (index) | |
3474 | *index = best_index; | |
3475 | if (exact_match) | |
ececd218 | 3476 | *exact_match = (exact != 0); |
c906108c SS |
3477 | |
3478 | return best_symtab; | |
3479 | } | |
f8eba3c6 TT |
3480 | |
3481 | /* Given SYMTAB, returns all the PCs function in the symtab that | |
67d89901 TT |
3482 | exactly match LINE. Returns an empty vector if there are no exact |
3483 | matches, but updates BEST_ITEM in this case. */ | |
f8eba3c6 | 3484 | |
67d89901 | 3485 | std::vector<CORE_ADDR> |
f8eba3c6 | 3486 | find_pcs_for_symtab_line (struct symtab *symtab, int line, |
977a0c16 | 3487 | const linetable_entry **best_item) |
f8eba3c6 | 3488 | { |
c656bca5 | 3489 | int start = 0; |
67d89901 | 3490 | std::vector<CORE_ADDR> result; |
1acc9dca | 3491 | struct objfile *objfile = symtab->compunit ()->objfile (); |
f8eba3c6 TT |
3492 | |
3493 | /* First, collect all the PCs that are at this line. */ | |
3494 | while (1) | |
3495 | { | |
3496 | int was_exact; | |
3497 | int idx; | |
3498 | ||
5b607461 | 3499 | idx = find_line_common (symtab->linetable (), line, &was_exact, |
8435453b | 3500 | start); |
f8eba3c6 TT |
3501 | if (idx < 0) |
3502 | break; | |
3503 | ||
3504 | if (!was_exact) | |
3505 | { | |
977a0c16 | 3506 | const linetable_entry *item = &symtab->linetable ()->item[idx]; |
f8eba3c6 | 3507 | |
8c95582d AB |
3508 | if (*best_item == NULL |
3509 | || (item->line < (*best_item)->line && item->is_stmt)) | |
f8eba3c6 TT |
3510 | *best_item = item; |
3511 | ||
3512 | break; | |
3513 | } | |
3514 | ||
1acc9dca | 3515 | result.push_back (symtab->linetable ()->item[idx].pc (objfile)); |
f8eba3c6 TT |
3516 | start = idx + 1; |
3517 | } | |
3518 | ||
3519 | return result; | |
3520 | } | |
3521 | ||
c906108c SS |
3522 | \f |
3523 | /* Set the PC value for a given source file and line number and return true. | |
ececd218 | 3524 | Returns false for invalid line number (and sets the PC to 0). |
c906108c SS |
3525 | The source file is specified with a struct symtab. */ |
3526 | ||
ececd218 | 3527 | bool |
fba45db2 | 3528 | find_line_pc (struct symtab *symtab, int line, CORE_ADDR *pc) |
c906108c | 3529 | { |
977a0c16 | 3530 | const struct linetable *l; |
c906108c SS |
3531 | int ind; |
3532 | ||
3533 | *pc = 0; | |
3534 | if (symtab == 0) | |
ececd218 | 3535 | return false; |
c906108c SS |
3536 | |
3537 | symtab = find_line_symtab (symtab, line, &ind, NULL); | |
3538 | if (symtab != NULL) | |
3539 | { | |
5b607461 | 3540 | l = symtab->linetable (); |
1acc9dca | 3541 | *pc = l->item[ind].pc (symtab->compunit ()->objfile ()); |
ececd218 | 3542 | return true; |
c906108c SS |
3543 | } |
3544 | else | |
ececd218 | 3545 | return false; |
c906108c SS |
3546 | } |
3547 | ||
3548 | /* Find the range of pc values in a line. | |
3549 | Store the starting pc of the line into *STARTPTR | |
3550 | and the ending pc (start of next line) into *ENDPTR. | |
ececd218 CB |
3551 | Returns true to indicate success. |
3552 | Returns false if could not find the specified line. */ | |
c906108c | 3553 | |
ececd218 | 3554 | bool |
fba45db2 KB |
3555 | find_line_pc_range (struct symtab_and_line sal, CORE_ADDR *startptr, |
3556 | CORE_ADDR *endptr) | |
c906108c SS |
3557 | { |
3558 | CORE_ADDR startaddr; | |
3559 | struct symtab_and_line found_sal; | |
3560 | ||
3561 | startaddr = sal.pc; | |
c5aa993b | 3562 | if (startaddr == 0 && !find_line_pc (sal.symtab, sal.line, &startaddr)) |
ececd218 | 3563 | return false; |
c906108c SS |
3564 | |
3565 | /* This whole function is based on address. For example, if line 10 has | |
3566 | two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then | |
3567 | "info line *0x123" should say the line goes from 0x100 to 0x200 | |
3568 | and "info line *0x355" should say the line goes from 0x300 to 0x400. | |
3569 | This also insures that we never give a range like "starts at 0x134 | |
3570 | and ends at 0x12c". */ | |
3571 | ||
3572 | found_sal = find_pc_sect_line (startaddr, sal.section, 0); | |
3573 | if (found_sal.line != sal.line) | |
3574 | { | |
3575 | /* The specified line (sal) has zero bytes. */ | |
3576 | *startptr = found_sal.pc; | |
3577 | *endptr = found_sal.pc; | |
3578 | } | |
3579 | else | |
3580 | { | |
3581 | *startptr = found_sal.pc; | |
3582 | *endptr = found_sal.end; | |
3583 | } | |
ececd218 | 3584 | return true; |
c906108c SS |
3585 | } |
3586 | ||
3587 | /* Given a line table and a line number, return the index into the line | |
3588 | table for the pc of the nearest line whose number is >= the specified one. | |
3589 | Return -1 if none is found. The value is >= 0 if it is an index. | |
f8eba3c6 | 3590 | START is the index at which to start searching the line table. |
c906108c SS |
3591 | |
3592 | Set *EXACT_MATCH nonzero if the value returned is an exact match. */ | |
3593 | ||
3594 | static int | |
977a0c16 | 3595 | find_line_common (const linetable *l, int lineno, |
f8eba3c6 | 3596 | int *exact_match, int start) |
c906108c | 3597 | { |
52f0bd74 AC |
3598 | int i; |
3599 | int len; | |
c906108c SS |
3600 | |
3601 | /* BEST is the smallest linenumber > LINENO so far seen, | |
3602 | or 0 if none has been seen so far. | |
3603 | BEST_INDEX identifies the item for it. */ | |
3604 | ||
3605 | int best_index = -1; | |
3606 | int best = 0; | |
3607 | ||
b7589f7d DJ |
3608 | *exact_match = 0; |
3609 | ||
c906108c SS |
3610 | if (lineno <= 0) |
3611 | return -1; | |
3612 | if (l == 0) | |
3613 | return -1; | |
3614 | ||
3615 | len = l->nitems; | |
f8eba3c6 | 3616 | for (i = start; i < len; i++) |
c906108c | 3617 | { |
977a0c16 | 3618 | const linetable_entry *item = &(l->item[i]); |
c906108c | 3619 | |
8c95582d AB |
3620 | /* Ignore non-statements. */ |
3621 | if (!item->is_stmt) | |
3622 | continue; | |
3623 | ||
c906108c SS |
3624 | if (item->line == lineno) |
3625 | { | |
3626 | /* Return the first (lowest address) entry which matches. */ | |
3627 | *exact_match = 1; | |
3628 | return i; | |
3629 | } | |
3630 | ||
3631 | if (item->line > lineno && (best == 0 || item->line < best)) | |
3632 | { | |
3633 | best = item->line; | |
3634 | best_index = i; | |
3635 | } | |
3636 | } | |
3637 | ||
3638 | /* If we got here, we didn't get an exact match. */ | |
c906108c SS |
3639 | return best_index; |
3640 | } | |
3641 | ||
ececd218 | 3642 | bool |
fba45db2 | 3643 | find_pc_line_pc_range (CORE_ADDR pc, CORE_ADDR *startptr, CORE_ADDR *endptr) |
c906108c SS |
3644 | { |
3645 | struct symtab_and_line sal; | |
433759f7 | 3646 | |
c906108c SS |
3647 | sal = find_pc_line (pc, 0); |
3648 | *startptr = sal.pc; | |
3649 | *endptr = sal.end; | |
3650 | return sal.symtab != 0; | |
3651 | } | |
3652 | ||
cd2bb709 PA |
3653 | /* Helper for find_function_start_sal. Does most of the work, except |
3654 | setting the sal's symbol. */ | |
aab2f208 | 3655 | |
cd2bb709 PA |
3656 | static symtab_and_line |
3657 | find_function_start_sal_1 (CORE_ADDR func_addr, obj_section *section, | |
3658 | bool funfirstline) | |
aab2f208 | 3659 | { |
42ddae10 | 3660 | symtab_and_line sal = find_pc_sect_line (func_addr, section, 0); |
aab2f208 | 3661 | |
6e22494e | 3662 | if (funfirstline && sal.symtab != NULL |
c6159652 | 3663 | && (sal.symtab->compunit ()->locations_valid () |
1ee2e9f9 | 3664 | || sal.symtab->language () == language_asm)) |
6e22494e | 3665 | { |
3c86fae3 | 3666 | struct gdbarch *gdbarch = sal.symtab->compunit ()->objfile ()->arch (); |
141c5cc4 | 3667 | |
42ddae10 | 3668 | sal.pc = func_addr; |
141c5cc4 JK |
3669 | if (gdbarch_skip_entrypoint_p (gdbarch)) |
3670 | sal.pc = gdbarch_skip_entrypoint (gdbarch, sal.pc); | |
6e22494e JK |
3671 | return sal; |
3672 | } | |
3673 | ||
aab2f208 | 3674 | /* We always should have a line for the function start address. |
42ddae10 | 3675 | If we don't, something is odd. Create a plain SAL referring |
aab2f208 DE |
3676 | just the PC and hope that skip_prologue_sal (if requested) |
3677 | can find a line number for after the prologue. */ | |
42ddae10 | 3678 | if (sal.pc < func_addr) |
aab2f208 | 3679 | { |
51abb421 | 3680 | sal = {}; |
aab2f208 | 3681 | sal.pspace = current_program_space; |
42ddae10 | 3682 | sal.pc = func_addr; |
08be3fe3 | 3683 | sal.section = section; |
aab2f208 DE |
3684 | } |
3685 | ||
3686 | if (funfirstline) | |
3687 | skip_prologue_sal (&sal); | |
3688 | ||
3689 | return sal; | |
3690 | } | |
3691 | ||
42ddae10 PA |
3692 | /* See symtab.h. */ |
3693 | ||
cd2bb709 PA |
3694 | symtab_and_line |
3695 | find_function_start_sal (CORE_ADDR func_addr, obj_section *section, | |
3696 | bool funfirstline) | |
3697 | { | |
3698 | symtab_and_line sal | |
3699 | = find_function_start_sal_1 (func_addr, section, funfirstline); | |
3700 | ||
3701 | /* find_function_start_sal_1 does a linetable search, so it finds | |
3702 | the symtab and linenumber, but not a symbol. Fill in the | |
3703 | function symbol too. */ | |
3704 | sal.symbol = find_pc_sect_containing_function (sal.pc, sal.section); | |
3705 | ||
3706 | return sal; | |
3707 | } | |
3708 | ||
3709 | /* See symtab.h. */ | |
3710 | ||
42ddae10 PA |
3711 | symtab_and_line |
3712 | find_function_start_sal (symbol *sym, bool funfirstline) | |
3713 | { | |
42ddae10 | 3714 | symtab_and_line sal |
6395b628 | 3715 | = find_function_start_sal_1 (sym->value_block ()->entry_pc (), |
e19b2d94 | 3716 | sym->obj_section (sym->objfile ()), |
cd2bb709 | 3717 | funfirstline); |
42ddae10 PA |
3718 | sal.symbol = sym; |
3719 | return sal; | |
3720 | } | |
3721 | ||
3722 | ||
8c7a1ee8 EZ |
3723 | /* Given a function start address FUNC_ADDR and SYMTAB, find the first |
3724 | address for that function that has an entry in SYMTAB's line info | |
3725 | table. If such an entry cannot be found, return FUNC_ADDR | |
3726 | unaltered. */ | |
eca864fe | 3727 | |
70221824 | 3728 | static CORE_ADDR |
8c7a1ee8 EZ |
3729 | skip_prologue_using_lineinfo (CORE_ADDR func_addr, struct symtab *symtab) |
3730 | { | |
3731 | CORE_ADDR func_start, func_end; | |
977a0c16 | 3732 | const struct linetable *l; |
952a6d41 | 3733 | int i; |
8c7a1ee8 EZ |
3734 | |
3735 | /* Give up if this symbol has no lineinfo table. */ | |
5b607461 | 3736 | l = symtab->linetable (); |
8c7a1ee8 EZ |
3737 | if (l == NULL) |
3738 | return func_addr; | |
3739 | ||
3740 | /* Get the range for the function's PC values, or give up if we | |
3741 | cannot, for some reason. */ | |
3742 | if (!find_pc_partial_function (func_addr, NULL, &func_start, &func_end)) | |
3743 | return func_addr; | |
3744 | ||
1acc9dca TT |
3745 | struct objfile *objfile = symtab->compunit ()->objfile (); |
3746 | ||
8c7a1ee8 EZ |
3747 | /* Linetable entries are ordered by PC values, see the commentary in |
3748 | symtab.h where `struct linetable' is defined. Thus, the first | |
3749 | entry whose PC is in the range [FUNC_START..FUNC_END[ is the | |
3750 | address we are looking for. */ | |
3751 | for (i = 0; i < l->nitems; i++) | |
3752 | { | |
977a0c16 | 3753 | const linetable_entry *item = &(l->item[i]); |
1acc9dca | 3754 | CORE_ADDR item_pc = item->pc (objfile); |
8c7a1ee8 EZ |
3755 | |
3756 | /* Don't use line numbers of zero, they mark special entries in | |
3757 | the table. See the commentary on symtab.h before the | |
3758 | definition of struct linetable. */ | |
1acc9dca TT |
3759 | if (item->line > 0 && func_start <= item_pc && item_pc < func_end) |
3760 | return item_pc; | |
8c7a1ee8 EZ |
3761 | } |
3762 | ||
3763 | return func_addr; | |
3764 | } | |
3765 | ||
cc96ae7f LS |
3766 | /* Try to locate the address where a breakpoint should be placed past the |
3767 | prologue of function starting at FUNC_ADDR using the line table. | |
3768 | ||
3769 | Return the address associated with the first entry in the line-table for | |
3770 | the function starting at FUNC_ADDR which has prologue_end set to true if | |
3771 | such entry exist, otherwise return an empty optional. */ | |
3772 | ||
6b09f134 | 3773 | static std::optional<CORE_ADDR> |
cc96ae7f LS |
3774 | skip_prologue_using_linetable (CORE_ADDR func_addr) |
3775 | { | |
3776 | CORE_ADDR start_pc, end_pc; | |
3777 | ||
3778 | if (!find_pc_partial_function (func_addr, nullptr, &start_pc, &end_pc)) | |
3779 | return {}; | |
3780 | ||
3781 | const struct symtab_and_line prologue_sal = find_pc_line (start_pc, 0); | |
3782 | if (prologue_sal.symtab != nullptr | |
3783 | && prologue_sal.symtab->language () != language_asm) | |
3784 | { | |
977a0c16 | 3785 | const linetable *linetable = prologue_sal.symtab->linetable (); |
cc96ae7f | 3786 | |
1acc9dca | 3787 | struct objfile *objfile = prologue_sal.symtab->compunit ()->objfile (); |
48e0f38c TT |
3788 | |
3789 | unrelocated_addr unrel_start | |
3790 | = unrelocated_addr (start_pc - objfile->text_section_offset ()); | |
3791 | unrelocated_addr unrel_end | |
3792 | = unrelocated_addr (end_pc - objfile->text_section_offset ()); | |
1acc9dca | 3793 | |
cc96ae7f | 3794 | auto it = std::lower_bound |
48e0f38c TT |
3795 | (linetable->item, linetable->item + linetable->nitems, unrel_start, |
3796 | [] (const linetable_entry <e, unrelocated_addr pc) | |
cc96ae7f | 3797 | { |
0434c3ef | 3798 | return lte.unrelocated_pc () < pc; |
cc96ae7f LS |
3799 | }); |
3800 | ||
3801 | for (; | |
48e0f38c | 3802 | (it < linetable->item + linetable->nitems |
0434c3ef | 3803 | && it->unrelocated_pc () < unrel_end); |
cc96ae7f LS |
3804 | it++) |
3805 | if (it->prologue_end) | |
1acc9dca | 3806 | return {it->pc (objfile)}; |
cc96ae7f LS |
3807 | } |
3808 | ||
3809 | return {}; | |
3810 | } | |
3811 | ||
059acae7 UW |
3812 | /* Adjust SAL to the first instruction past the function prologue. |
3813 | If the PC was explicitly specified, the SAL is not changed. | |
5b0e2db4 AB |
3814 | If the line number was explicitly specified then the SAL can still be |
3815 | updated, unless the language for SAL is assembler, in which case the SAL | |
3816 | will be left unchanged. | |
3817 | If SAL is already past the prologue, then do nothing. */ | |
eca864fe | 3818 | |
059acae7 UW |
3819 | void |
3820 | skip_prologue_sal (struct symtab_and_line *sal) | |
3821 | { | |
3822 | struct symbol *sym; | |
3823 | struct symtab_and_line start_sal; | |
8be455d7 | 3824 | CORE_ADDR pc, saved_pc; |
059acae7 UW |
3825 | struct obj_section *section; |
3826 | const char *name; | |
3827 | struct objfile *objfile; | |
3828 | struct gdbarch *gdbarch; | |
3977b71f | 3829 | const struct block *b, *function_block; |
8be455d7 | 3830 | int force_skip, skip; |
c906108c | 3831 | |
a4b411d6 | 3832 | /* Do not change the SAL if PC was specified explicitly. */ |
059acae7 UW |
3833 | if (sal->explicit_pc) |
3834 | return; | |
6c95b8df | 3835 | |
5b0e2db4 AB |
3836 | /* In assembly code, if the user asks for a specific line then we should |
3837 | not adjust the SAL. The user already has instruction level | |
3838 | visibility in this case, so selecting a line other than one requested | |
3839 | is likely to be the wrong choice. */ | |
3840 | if (sal->symtab != nullptr | |
3841 | && sal->explicit_line | |
1ee2e9f9 | 3842 | && sal->symtab->language () == language_asm) |
5b0e2db4 AB |
3843 | return; |
3844 | ||
5ed8105e PA |
3845 | scoped_restore_current_pspace_and_thread restore_pspace_thread; |
3846 | ||
059acae7 | 3847 | switch_to_program_space_and_thread (sal->pspace); |
6c95b8df | 3848 | |
059acae7 UW |
3849 | sym = find_pc_sect_function (sal->pc, sal->section); |
3850 | if (sym != NULL) | |
bccdca4a | 3851 | { |
e19b2d94 | 3852 | objfile = sym->objfile (); |
6395b628 | 3853 | pc = sym->value_block ()->entry_pc (); |
ebbc3a7d | 3854 | section = sym->obj_section (objfile); |
987012b8 | 3855 | name = sym->linkage_name (); |
c906108c | 3856 | } |
059acae7 UW |
3857 | else |
3858 | { | |
7c7b6655 | 3859 | struct bound_minimal_symbol msymbol |
dda83cd7 | 3860 | = lookup_minimal_symbol_by_pc_section (sal->pc, sal->section); |
433759f7 | 3861 | |
7c7b6655 | 3862 | if (msymbol.minsym == NULL) |
5ed8105e | 3863 | return; |
059acae7 | 3864 | |
7c7b6655 | 3865 | objfile = msymbol.objfile; |
4aeddc50 | 3866 | pc = msymbol.value_address (); |
ebbc3a7d | 3867 | section = msymbol.minsym->obj_section (objfile); |
c9d95fa3 | 3868 | name = msymbol.minsym->linkage_name (); |
059acae7 UW |
3869 | } |
3870 | ||
08feed99 | 3871 | gdbarch = objfile->arch (); |
059acae7 | 3872 | |
8be455d7 JK |
3873 | /* Process the prologue in two passes. In the first pass try to skip the |
3874 | prologue (SKIP is true) and verify there is a real need for it (indicated | |
3875 | by FORCE_SKIP). If no such reason was found run a second pass where the | |
3876 | prologue is not skipped (SKIP is false). */ | |
059acae7 | 3877 | |
8be455d7 JK |
3878 | skip = 1; |
3879 | force_skip = 1; | |
059acae7 | 3880 | |
8be455d7 JK |
3881 | /* Be conservative - allow direct PC (without skipping prologue) only if we |
3882 | have proven the CU (Compilation Unit) supports it. sal->SYMTAB does not | |
3883 | have to be set by the caller so we use SYM instead. */ | |
08be3fe3 | 3884 | if (sym != NULL |
4206d69e | 3885 | && sym->symtab ()->compunit ()->locations_valid ()) |
8be455d7 | 3886 | force_skip = 0; |
059acae7 | 3887 | |
8be455d7 JK |
3888 | saved_pc = pc; |
3889 | do | |
c906108c | 3890 | { |
8be455d7 | 3891 | pc = saved_pc; |
4309257c | 3892 | |
cc96ae7f | 3893 | /* Check if the compiler explicitly indicated where a breakpoint should |
287de656 | 3894 | be placed to skip the prologue. */ |
6109f7a3 | 3895 | if (!ignore_prologue_end_flag && skip) |
cc96ae7f | 3896 | { |
6b09f134 | 3897 | std::optional<CORE_ADDR> linetable_pc |
cc96ae7f LS |
3898 | = skip_prologue_using_linetable (pc); |
3899 | if (linetable_pc) | |
3900 | { | |
3901 | pc = *linetable_pc; | |
3902 | start_sal = find_pc_sect_line (pc, section, 0); | |
3903 | force_skip = 1; | |
3904 | continue; | |
3905 | } | |
3906 | } | |
3907 | ||
8be455d7 JK |
3908 | /* If the function is in an unmapped overlay, use its unmapped LMA address, |
3909 | so that gdbarch_skip_prologue has something unique to work on. */ | |
3910 | if (section_is_overlay (section) && !section_is_mapped (section)) | |
3911 | pc = overlay_unmapped_address (pc, section); | |
3912 | ||
3913 | /* Skip "first line" of function (which is actually its prologue). */ | |
3914 | pc += gdbarch_deprecated_function_start_offset (gdbarch); | |
591a12a1 | 3915 | if (gdbarch_skip_entrypoint_p (gdbarch)) |
dda83cd7 | 3916 | pc = gdbarch_skip_entrypoint (gdbarch, pc); |
8be455d7 | 3917 | if (skip) |
46a62268 | 3918 | pc = gdbarch_skip_prologue_noexcept (gdbarch, pc); |
8be455d7 JK |
3919 | |
3920 | /* For overlays, map pc back into its mapped VMA range. */ | |
3921 | pc = overlay_mapped_address (pc, section); | |
3922 | ||
3923 | /* Calculate line number. */ | |
059acae7 | 3924 | start_sal = find_pc_sect_line (pc, section, 0); |
8be455d7 JK |
3925 | |
3926 | /* Check if gdbarch_skip_prologue left us in mid-line, and the next | |
3927 | line is still part of the same function. */ | |
3928 | if (skip && start_sal.pc != pc | |
6395b628 | 3929 | && (sym ? (sym->value_block ()->entry_pc () <= start_sal.end |
4b8791e1 | 3930 | && start_sal.end < sym->value_block()->end ()) |
7cbd4a93 TT |
3931 | : (lookup_minimal_symbol_by_pc_section (start_sal.end, section).minsym |
3932 | == lookup_minimal_symbol_by_pc_section (pc, section).minsym))) | |
8be455d7 JK |
3933 | { |
3934 | /* First pc of next line */ | |
3935 | pc = start_sal.end; | |
3936 | /* Recalculate the line number (might not be N+1). */ | |
3937 | start_sal = find_pc_sect_line (pc, section, 0); | |
3938 | } | |
3939 | ||
3940 | /* On targets with executable formats that don't have a concept of | |
3941 | constructors (ELF with .init has, PE doesn't), gcc emits a call | |
3942 | to `__main' in `main' between the prologue and before user | |
3943 | code. */ | |
3944 | if (gdbarch_skip_main_prologue_p (gdbarch) | |
7ccffd7c | 3945 | && name && strcmp_iw (name, "main") == 0) |
8be455d7 JK |
3946 | { |
3947 | pc = gdbarch_skip_main_prologue (gdbarch, pc); | |
3948 | /* Recalculate the line number (might not be N+1). */ | |
3949 | start_sal = find_pc_sect_line (pc, section, 0); | |
3950 | force_skip = 1; | |
3951 | } | |
4309257c | 3952 | } |
8be455d7 | 3953 | while (!force_skip && skip--); |
4309257c | 3954 | |
8c7a1ee8 EZ |
3955 | /* If we still don't have a valid source line, try to find the first |
3956 | PC in the lineinfo table that belongs to the same function. This | |
3957 | happens with COFF debug info, which does not seem to have an | |
3958 | entry in lineinfo table for the code after the prologue which has | |
3959 | no direct relation to source. For example, this was found to be | |
3960 | the case with the DJGPP target using "gcc -gcoff" when the | |
3961 | compiler inserted code after the prologue to make sure the stack | |
3962 | is aligned. */ | |
8be455d7 | 3963 | if (!force_skip && sym && start_sal.symtab == NULL) |
8c7a1ee8 | 3964 | { |
4206d69e | 3965 | pc = skip_prologue_using_lineinfo (pc, sym->symtab ()); |
8c7a1ee8 | 3966 | /* Recalculate the line number. */ |
059acae7 | 3967 | start_sal = find_pc_sect_line (pc, section, 0); |
8c7a1ee8 EZ |
3968 | } |
3969 | ||
059acae7 UW |
3970 | /* If we're already past the prologue, leave SAL unchanged. Otherwise |
3971 | forward SAL to the end of the prologue. */ | |
3972 | if (sal->pc >= pc) | |
3973 | return; | |
3974 | ||
3975 | sal->pc = pc; | |
3976 | sal->section = section; | |
059acae7 UW |
3977 | sal->symtab = start_sal.symtab; |
3978 | sal->line = start_sal.line; | |
3979 | sal->end = start_sal.end; | |
c906108c | 3980 | |
edb3359d DJ |
3981 | /* Check if we are now inside an inlined function. If we can, |
3982 | use the call site of the function instead. */ | |
059acae7 | 3983 | b = block_for_pc_sect (sal->pc, sal->section); |
edb3359d DJ |
3984 | function_block = NULL; |
3985 | while (b != NULL) | |
3986 | { | |
a4dfe747 | 3987 | if (b->function () != NULL && b->inlined_p ()) |
edb3359d | 3988 | function_block = b; |
6c00f721 | 3989 | else if (b->function () != NULL) |
edb3359d | 3990 | break; |
f135fe72 | 3991 | b = b->superblock (); |
edb3359d DJ |
3992 | } |
3993 | if (function_block != NULL | |
6c00f721 | 3994 | && function_block->function ()->line () != 0) |
edb3359d | 3995 | { |
6c00f721 SM |
3996 | sal->line = function_block->function ()->line (); |
3997 | sal->symtab = function_block->function ()->symtab (); | |
edb3359d | 3998 | } |
c906108c | 3999 | } |
50641945 | 4000 | |
f1f58506 DE |
4001 | /* Given PC at the function's start address, attempt to find the |
4002 | prologue end using SAL information. Return zero if the skip fails. | |
4003 | ||
4004 | A non-optimized prologue traditionally has one SAL for the function | |
4005 | and a second for the function body. A single line function has | |
4006 | them both pointing at the same line. | |
4007 | ||
4008 | An optimized prologue is similar but the prologue may contain | |
4009 | instructions (SALs) from the instruction body. Need to skip those | |
4010 | while not getting into the function body. | |
4011 | ||
4012 | The functions end point and an increasing SAL line are used as | |
4013 | indicators of the prologue's endpoint. | |
4014 | ||
4015 | This code is based on the function refine_prologue_limit | |
4016 | (found in ia64). */ | |
4017 | ||
4018 | CORE_ADDR | |
4019 | skip_prologue_using_sal (struct gdbarch *gdbarch, CORE_ADDR func_addr) | |
4020 | { | |
4021 | struct symtab_and_line prologue_sal; | |
4022 | CORE_ADDR start_pc; | |
4023 | CORE_ADDR end_pc; | |
4024 | const struct block *bl; | |
4025 | ||
4026 | /* Get an initial range for the function. */ | |
4027 | find_pc_partial_function (func_addr, NULL, &start_pc, &end_pc); | |
4028 | start_pc += gdbarch_deprecated_function_start_offset (gdbarch); | |
4029 | ||
4030 | prologue_sal = find_pc_line (start_pc, 0); | |
4031 | if (prologue_sal.line != 0) | |
4032 | { | |
4033 | /* For languages other than assembly, treat two consecutive line | |
4034 | entries at the same address as a zero-instruction prologue. | |
4035 | The GNU assembler emits separate line notes for each instruction | |
4036 | in a multi-instruction macro, but compilers generally will not | |
4037 | do this. */ | |
1ee2e9f9 | 4038 | if (prologue_sal.symtab->language () != language_asm) |
f1f58506 | 4039 | { |
1acc9dca TT |
4040 | struct objfile *objfile |
4041 | = prologue_sal.symtab->compunit ()->objfile (); | |
977a0c16 | 4042 | const linetable *linetable = prologue_sal.symtab->linetable (); |
e84060b4 | 4043 | gdb_assert (linetable->nitems > 0); |
f1f58506 DE |
4044 | int idx = 0; |
4045 | ||
4046 | /* Skip any earlier lines, and any end-of-sequence marker | |
4047 | from a previous function. */ | |
e84060b4 AB |
4048 | while (idx + 1 < linetable->nitems |
4049 | && (linetable->item[idx].pc (objfile) != prologue_sal.pc | |
4050 | || linetable->item[idx].line == 0)) | |
f1f58506 DE |
4051 | idx++; |
4052 | ||
e84060b4 | 4053 | if (idx + 1 < linetable->nitems |
f1f58506 | 4054 | && linetable->item[idx+1].line != 0 |
1acc9dca | 4055 | && linetable->item[idx+1].pc (objfile) == start_pc) |
f1f58506 DE |
4056 | return start_pc; |
4057 | } | |
4058 | ||
4059 | /* If there is only one sal that covers the entire function, | |
4060 | then it is probably a single line function, like | |
4061 | "foo(){}". */ | |
4062 | if (prologue_sal.end >= end_pc) | |
4063 | return 0; | |
4064 | ||
4065 | while (prologue_sal.end < end_pc) | |
4066 | { | |
4067 | struct symtab_and_line sal; | |
4068 | ||
4069 | sal = find_pc_line (prologue_sal.end, 0); | |
4070 | if (sal.line == 0) | |
4071 | break; | |
4072 | /* Assume that a consecutive SAL for the same (or larger) | |
4073 | line mark the prologue -> body transition. */ | |
4074 | if (sal.line >= prologue_sal.line) | |
4075 | break; | |
4076 | /* Likewise if we are in a different symtab altogether | |
4077 | (e.g. within a file included via #include). */ | |
4078 | if (sal.symtab != prologue_sal.symtab) | |
4079 | break; | |
4080 | ||
4081 | /* The line number is smaller. Check that it's from the | |
4082 | same function, not something inlined. If it's inlined, | |
4083 | then there is no point comparing the line numbers. */ | |
4084 | bl = block_for_pc (prologue_sal.end); | |
4085 | while (bl) | |
4086 | { | |
a4dfe747 | 4087 | if (bl->inlined_p ()) |
f1f58506 | 4088 | break; |
6c00f721 | 4089 | if (bl->function ()) |
f1f58506 DE |
4090 | { |
4091 | bl = NULL; | |
4092 | break; | |
4093 | } | |
f135fe72 | 4094 | bl = bl->superblock (); |
f1f58506 DE |
4095 | } |
4096 | if (bl != NULL) | |
4097 | break; | |
4098 | ||
4099 | /* The case in which compiler's optimizer/scheduler has | |
4100 | moved instructions into the prologue. We look ahead in | |
4101 | the function looking for address ranges whose | |
4102 | corresponding line number is less the first one that we | |
4103 | found for the function. This is more conservative then | |
4104 | refine_prologue_limit which scans a large number of SALs | |
4105 | looking for any in the prologue. */ | |
4106 | prologue_sal = sal; | |
4107 | } | |
4108 | } | |
4109 | ||
4110 | if (prologue_sal.end < end_pc) | |
4111 | /* Return the end of this line, or zero if we could not find a | |
4112 | line. */ | |
4113 | return prologue_sal.end; | |
4114 | else | |
4115 | /* Don't return END_PC, which is past the end of the function. */ | |
4116 | return prologue_sal.pc; | |
4117 | } | |
bf223d3e PA |
4118 | |
4119 | /* See symtab.h. */ | |
4120 | ||
528b729b GL |
4121 | std::optional<CORE_ADDR> |
4122 | find_epilogue_using_linetable (CORE_ADDR func_addr) | |
4123 | { | |
4124 | CORE_ADDR start_pc, end_pc; | |
4125 | ||
4126 | if (!find_pc_partial_function (func_addr, nullptr, &start_pc, &end_pc)) | |
4127 | return {}; | |
4128 | ||
4129 | const struct symtab_and_line sal = find_pc_line (start_pc, 0); | |
4130 | if (sal.symtab != nullptr && sal.symtab->language () != language_asm) | |
4131 | { | |
4132 | struct objfile *objfile = sal.symtab->compunit ()->objfile (); | |
4133 | unrelocated_addr unrel_start | |
4134 | = unrelocated_addr (start_pc - objfile->text_section_offset ()); | |
4135 | unrelocated_addr unrel_end | |
4136 | = unrelocated_addr (end_pc - objfile->text_section_offset ()); | |
4137 | ||
4138 | const linetable *linetable = sal.symtab->linetable (); | |
4139 | /* This should find the last linetable entry of the current function. | |
4140 | It is probably where the epilogue begins, but since the DWARF 5 | |
4141 | spec doesn't guarantee it, we iterate backwards through the function | |
4142 | until we either find it or are sure that it doesn't exist. */ | |
4143 | auto it = std::lower_bound | |
4144 | (linetable->item, linetable->item + linetable->nitems, unrel_end, | |
4145 | [] (const linetable_entry <e, unrelocated_addr pc) | |
4146 | { | |
4147 | return lte.unrelocated_pc () < pc; | |
4148 | }); | |
4149 | ||
4150 | while (it->unrelocated_pc () >= unrel_start) | |
4151 | { | |
4152 | if (it->epilogue_begin) | |
4153 | return {it->pc (objfile)}; | |
4154 | it --; | |
4155 | } | |
4156 | } | |
4157 | return {}; | |
4158 | } | |
4159 | ||
4160 | /* See symtab.h. */ | |
4161 | ||
bf223d3e PA |
4162 | symbol * |
4163 | find_function_alias_target (bound_minimal_symbol msymbol) | |
4164 | { | |
4024cf2b PA |
4165 | CORE_ADDR func_addr; |
4166 | if (!msymbol_is_function (msymbol.objfile, msymbol.minsym, &func_addr)) | |
bf223d3e PA |
4167 | return NULL; |
4168 | ||
4024cf2b | 4169 | symbol *sym = find_pc_function (func_addr); |
bf223d3e | 4170 | if (sym != NULL |
66d7f48f | 4171 | && sym->aclass () == LOC_BLOCK |
6395b628 | 4172 | && sym->value_block ()->entry_pc () == func_addr) |
bf223d3e PA |
4173 | return sym; |
4174 | ||
4175 | return NULL; | |
4176 | } | |
4177 | ||
f1f58506 | 4178 | \f |
c906108c SS |
4179 | /* If P is of the form "operator[ \t]+..." where `...' is |
4180 | some legitimate operator text, return a pointer to the | |
4181 | beginning of the substring of the operator text. | |
4182 | Otherwise, return "". */ | |
eca864fe | 4183 | |
96142726 TT |
4184 | static const char * |
4185 | operator_chars (const char *p, const char **end) | |
c906108c SS |
4186 | { |
4187 | *end = ""; | |
8090b426 | 4188 | if (!startswith (p, CP_OPERATOR_STR)) |
c906108c | 4189 | return *end; |
8090b426 | 4190 | p += CP_OPERATOR_LEN; |
c906108c SS |
4191 | |
4192 | /* Don't get faked out by `operator' being part of a longer | |
4193 | identifier. */ | |
c5aa993b | 4194 | if (isalpha (*p) || *p == '_' || *p == '$' || *p == '\0') |
c906108c SS |
4195 | return *end; |
4196 | ||
4197 | /* Allow some whitespace between `operator' and the operator symbol. */ | |
4198 | while (*p == ' ' || *p == '\t') | |
4199 | p++; | |
4200 | ||
c378eb4e | 4201 | /* Recognize 'operator TYPENAME'. */ |
c906108c | 4202 | |
c5aa993b | 4203 | if (isalpha (*p) || *p == '_' || *p == '$') |
c906108c | 4204 | { |
96142726 | 4205 | const char *q = p + 1; |
433759f7 | 4206 | |
c5aa993b | 4207 | while (isalnum (*q) || *q == '_' || *q == '$') |
c906108c SS |
4208 | q++; |
4209 | *end = q; | |
4210 | return p; | |
4211 | } | |
4212 | ||
53e8ad3d MS |
4213 | while (*p) |
4214 | switch (*p) | |
4215 | { | |
4216 | case '\\': /* regexp quoting */ | |
4217 | if (p[1] == '*') | |
4218 | { | |
3e43a32a | 4219 | if (p[2] == '=') /* 'operator\*=' */ |
53e8ad3d MS |
4220 | *end = p + 3; |
4221 | else /* 'operator\*' */ | |
4222 | *end = p + 2; | |
4223 | return p; | |
4224 | } | |
4225 | else if (p[1] == '[') | |
4226 | { | |
4227 | if (p[2] == ']') | |
3e43a32a MS |
4228 | error (_("mismatched quoting on brackets, " |
4229 | "try 'operator\\[\\]'")); | |
53e8ad3d MS |
4230 | else if (p[2] == '\\' && p[3] == ']') |
4231 | { | |
4232 | *end = p + 4; /* 'operator\[\]' */ | |
4233 | return p; | |
4234 | } | |
4235 | else | |
8a3fe4f8 | 4236 | error (_("nothing is allowed between '[' and ']'")); |
53e8ad3d | 4237 | } |
9af17804 | 4238 | else |
53e8ad3d | 4239 | { |
85102364 | 4240 | /* Gratuitous quote: skip it and move on. */ |
53e8ad3d MS |
4241 | p++; |
4242 | continue; | |
4243 | } | |
4244 | break; | |
4245 | case '!': | |
4246 | case '=': | |
4247 | case '*': | |
4248 | case '/': | |
4249 | case '%': | |
4250 | case '^': | |
4251 | if (p[1] == '=') | |
4252 | *end = p + 2; | |
4253 | else | |
4254 | *end = p + 1; | |
4255 | return p; | |
4256 | case '<': | |
4257 | case '>': | |
4258 | case '+': | |
4259 | case '-': | |
4260 | case '&': | |
4261 | case '|': | |
4262 | if (p[0] == '-' && p[1] == '>') | |
4263 | { | |
c378eb4e | 4264 | /* Struct pointer member operator 'operator->'. */ |
53e8ad3d MS |
4265 | if (p[2] == '*') |
4266 | { | |
4267 | *end = p + 3; /* 'operator->*' */ | |
4268 | return p; | |
4269 | } | |
4270 | else if (p[2] == '\\') | |
4271 | { | |
4272 | *end = p + 4; /* Hopefully 'operator->\*' */ | |
4273 | return p; | |
4274 | } | |
4275 | else | |
4276 | { | |
4277 | *end = p + 2; /* 'operator->' */ | |
4278 | return p; | |
4279 | } | |
4280 | } | |
4281 | if (p[1] == '=' || p[1] == p[0]) | |
4282 | *end = p + 2; | |
4283 | else | |
4284 | *end = p + 1; | |
4285 | return p; | |
4286 | case '~': | |
4287 | case ',': | |
c5aa993b | 4288 | *end = p + 1; |
53e8ad3d MS |
4289 | return p; |
4290 | case '(': | |
4291 | if (p[1] != ')') | |
3e43a32a MS |
4292 | error (_("`operator ()' must be specified " |
4293 | "without whitespace in `()'")); | |
c5aa993b | 4294 | *end = p + 2; |
53e8ad3d MS |
4295 | return p; |
4296 | case '?': | |
4297 | if (p[1] != ':') | |
3e43a32a MS |
4298 | error (_("`operator ?:' must be specified " |
4299 | "without whitespace in `?:'")); | |
53e8ad3d MS |
4300 | *end = p + 2; |
4301 | return p; | |
4302 | case '[': | |
4303 | if (p[1] != ']') | |
3e43a32a MS |
4304 | error (_("`operator []' must be specified " |
4305 | "without whitespace in `[]'")); | |
53e8ad3d MS |
4306 | *end = p + 2; |
4307 | return p; | |
4308 | default: | |
8a3fe4f8 | 4309 | error (_("`operator %s' not supported"), p); |
53e8ad3d MS |
4310 | break; |
4311 | } | |
4312 | ||
c906108c SS |
4313 | *end = ""; |
4314 | return *end; | |
4315 | } | |
c906108c | 4316 | \f |
c5aa993b | 4317 | |
4a0788e0 | 4318 | /* See class declaration. */ |
9fdc877b | 4319 | |
4a0788e0 | 4320 | info_sources_filter::info_sources_filter (match_on match_type, |
287de656 | 4321 | const char *regexp) |
4a0788e0 AB |
4322 | : m_match_type (match_type), |
4323 | m_regexp (regexp) | |
9fdc877b | 4324 | { |
4a0788e0 AB |
4325 | /* Setup the compiled regular expression M_C_REGEXP based on M_REGEXP. */ |
4326 | if (m_regexp != nullptr && *m_regexp != '\0') | |
4327 | { | |
4328 | gdb_assert (m_regexp != nullptr); | |
28cd9371 | 4329 | |
4a0788e0 AB |
4330 | int cflags = REG_NOSUB; |
4331 | #ifdef HAVE_CASE_INSENSITIVE_FILE_SYSTEM | |
4332 | cflags |= REG_ICASE; | |
4333 | #endif | |
4334 | m_c_regexp.emplace (m_regexp, cflags, _("Invalid regexp")); | |
4335 | } | |
4336 | } | |
28cd9371 | 4337 | |
4a0788e0 | 4338 | /* See class declaration. */ |
9fdc877b | 4339 | |
4a0788e0 AB |
4340 | bool |
4341 | info_sources_filter::matches (const char *fullname) const | |
4342 | { | |
4343 | /* Does it match regexp? */ | |
4344 | if (m_c_regexp.has_value ()) | |
4345 | { | |
4346 | const char *to_match; | |
4347 | std::string dirname; | |
4348 | ||
4349 | switch (m_match_type) | |
287de656 SM |
4350 | { |
4351 | case match_on::DIRNAME: | |
4352 | dirname = ldirname (fullname); | |
4353 | to_match = dirname.c_str (); | |
4354 | break; | |
4355 | case match_on::BASENAME: | |
4356 | to_match = lbasename (fullname); | |
4357 | break; | |
4358 | case match_on::FULLNAME: | |
4359 | to_match = fullname; | |
4360 | break; | |
b6aeb717 TT |
4361 | default: |
4362 | gdb_assert_not_reached ("bad m_match_type"); | |
287de656 | 4363 | } |
4a0788e0 AB |
4364 | |
4365 | if (m_c_regexp->exec (to_match, 0, NULL, 0) != 0) | |
287de656 | 4366 | return false; |
4a0788e0 AB |
4367 | } |
4368 | ||
4369 | return true; | |
4370 | } | |
4371 | ||
4a0788e0 AB |
4372 | /* Data structure to maintain the state used for printing the results of |
4373 | the 'info sources' command. */ | |
4374 | ||
4375 | struct output_source_filename_data | |
4376 | { | |
4377 | /* Create an object for displaying the results of the 'info sources' | |
0e350a05 AB |
4378 | command to UIOUT. FILTER must remain valid and unchanged for the |
4379 | lifetime of this object as this object retains a reference to FILTER. */ | |
4380 | output_source_filename_data (struct ui_out *uiout, | |
4381 | const info_sources_filter &filter) | |
4382 | : m_filter (filter), | |
4383 | m_uiout (uiout) | |
4a0788e0 AB |
4384 | { /* Nothing. */ } |
4385 | ||
4386 | DISABLE_COPY_AND_ASSIGN (output_source_filename_data); | |
4387 | ||
4388 | /* Reset enough state of this object so we can match against a new set of | |
4389 | files. The existing regular expression is retained though. */ | |
4390 | void reset_output () | |
4391 | { | |
4392 | m_first = true; | |
4393 | m_filename_seen_cache.clear (); | |
4394 | } | |
4395 | ||
0e350a05 AB |
4396 | /* Worker for sources_info, outputs the file name formatted for either |
4397 | cli or mi (based on the current_uiout). In cli mode displays | |
4398 | FULLNAME with a comma separating this name from any previously | |
4399 | printed name (line breaks are added at the comma). In MI mode | |
4400 | outputs a tuple containing DISP_NAME (the files display name), | |
4401 | FULLNAME, and EXPANDED_P (true when this file is from a fully | |
4402 | expanded symtab, otherwise false). */ | |
4403 | void output (const char *disp_name, const char *fullname, bool expanded_p); | |
eca864fe | 4404 | |
f4655dee TT |
4405 | /* An overload suitable for use as a callback to |
4406 | quick_symbol_functions::map_symbol_filenames. */ | |
4407 | void operator() (const char *filename, const char *fullname) | |
4408 | { | |
0e350a05 AB |
4409 | /* The false here indicates that this file is from an unexpanded |
4410 | symtab. */ | |
4411 | output (filename, fullname, false); | |
f4655dee | 4412 | } |
4a0788e0 | 4413 | |
bd742128 AB |
4414 | /* Return true if at least one filename has been printed (after a call to |
4415 | output) since either this object was created, or the last call to | |
4416 | reset_output. */ | |
4417 | bool printed_filename_p () const | |
4418 | { | |
4419 | return !m_first; | |
4420 | } | |
4421 | ||
4a0788e0 AB |
4422 | private: |
4423 | ||
4424 | /* Flag of whether we're printing the first one. */ | |
4425 | bool m_first = true; | |
4426 | ||
4427 | /* Cache of what we've seen so far. */ | |
4428 | filename_seen_cache m_filename_seen_cache; | |
4429 | ||
4430 | /* How source filename should be filtered. */ | |
4431 | const info_sources_filter &m_filter; | |
0e350a05 AB |
4432 | |
4433 | /* The object to which output is sent. */ | |
4434 | struct ui_out *m_uiout; | |
f4655dee TT |
4435 | }; |
4436 | ||
4a0788e0 AB |
4437 | /* See comment in class declaration above. */ |
4438 | ||
f4655dee | 4439 | void |
0e350a05 AB |
4440 | output_source_filename_data::output (const char *disp_name, |
4441 | const char *fullname, | |
4442 | bool expanded_p) | |
c94fdfd0 EZ |
4443 | { |
4444 | /* Since a single source file can result in several partial symbol | |
4445 | tables, we need to avoid printing it more than once. Note: if | |
4446 | some of the psymtabs are read in and some are not, it gets | |
4447 | printed both under "Source files for which symbols have been | |
4448 | read" and "Source files for which symbols will be read in on | |
4449 | demand". I consider this a reasonable way to deal with the | |
4450 | situation. I'm not sure whether this can also happen for | |
4451 | symtabs; it doesn't hurt to check. */ | |
4452 | ||
4a0788e0 | 4453 | /* Was NAME already seen? If so, then don't print it again. */ |
0e350a05 | 4454 | if (m_filename_seen_cache.seen (fullname)) |
4a0788e0 | 4455 | return; |
28cd9371 | 4456 | |
4a0788e0 | 4457 | /* If the filter rejects this file then don't print it. */ |
0e350a05 | 4458 | if (!m_filter.matches (fullname)) |
4a0788e0 | 4459 | return; |
28cd9371 | 4460 | |
0e350a05 AB |
4461 | ui_out_emit_tuple ui_emitter (m_uiout, nullptr); |
4462 | ||
28cd9371 | 4463 | /* Print it and reset *FIRST. */ |
4a0788e0 | 4464 | if (!m_first) |
0e350a05 | 4465 | m_uiout->text (", "); |
4a0788e0 | 4466 | m_first = false; |
c906108c | 4467 | |
1285ce86 | 4468 | m_uiout->wrap_hint (0); |
0e350a05 AB |
4469 | if (m_uiout->is_mi_like_p ()) |
4470 | { | |
4471 | m_uiout->field_string ("file", disp_name, file_name_style.style ()); | |
4472 | if (fullname != nullptr) | |
4473 | m_uiout->field_string ("fullname", fullname, | |
4474 | file_name_style.style ()); | |
4475 | m_uiout->field_string ("debug-fully-read", | |
4476 | (expanded_p ? "true" : "false")); | |
4477 | } | |
4478 | else | |
4479 | { | |
4480 | if (fullname == nullptr) | |
4481 | fullname = disp_name; | |
4482 | m_uiout->field_string ("fullname", fullname, | |
4483 | file_name_style.style ()); | |
4484 | } | |
c5aa993b | 4485 | } |
c906108c | 4486 | |
4a0788e0 AB |
4487 | /* For the 'info sources' command, what part of the file names should we be |
4488 | matching the user supplied regular expression against? */ | |
4489 | ||
4490 | struct filename_partial_match_opts | |
4491 | { | |
4492 | /* Only match the directory name part. */ | |
4493 | bool dirname = false; | |
4494 | ||
4495 | /* Only match the basename part. */ | |
4496 | bool basename = false; | |
4497 | }; | |
4498 | ||
28cd9371 PW |
4499 | using isrc_flag_option_def |
4500 | = gdb::option::flag_option_def<filename_partial_match_opts>; | |
4501 | ||
4502 | static const gdb::option::option_def info_sources_option_defs[] = { | |
4503 | ||
4504 | isrc_flag_option_def { | |
4505 | "dirname", | |
4506 | [] (filename_partial_match_opts *opts) { return &opts->dirname; }, | |
4507 | N_("Show only the files having a dirname matching REGEXP."), | |
4508 | }, | |
4509 | ||
4510 | isrc_flag_option_def { | |
4511 | "basename", | |
4512 | [] (filename_partial_match_opts *opts) { return &opts->basename; }, | |
4513 | N_("Show only the files having a basename matching REGEXP."), | |
4514 | }, | |
4515 | ||
4516 | }; | |
4517 | ||
4518 | /* Create an option_def_group for the "info sources" options, with | |
4519 | ISRC_OPTS as context. */ | |
4520 | ||
4521 | static inline gdb::option::option_def_group | |
4522 | make_info_sources_options_def_group (filename_partial_match_opts *isrc_opts) | |
4523 | { | |
4524 | return {{info_sources_option_defs}, isrc_opts}; | |
4525 | } | |
4526 | ||
28cd9371 PW |
4527 | /* Completer for "info sources". */ |
4528 | ||
4529 | static void | |
4530 | info_sources_command_completer (cmd_list_element *ignore, | |
4531 | completion_tracker &tracker, | |
4532 | const char *text, const char *word) | |
4533 | { | |
4534 | const auto group = make_info_sources_options_def_group (nullptr); | |
4535 | if (gdb::option::complete_options | |
4536 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
4537 | return; | |
4538 | } | |
4539 | ||
0e350a05 AB |
4540 | /* See symtab.h. */ |
4541 | ||
4542 | void | |
4543 | info_sources_worker (struct ui_out *uiout, | |
1fb1ce02 | 4544 | bool group_by_objfile, |
0e350a05 AB |
4545 | const info_sources_filter &filter) |
4546 | { | |
4547 | output_source_filename_data data (uiout, filter); | |
4548 | ||
4549 | ui_out_emit_list results_emitter (uiout, "files"); | |
6b09f134 LS |
4550 | std::optional<ui_out_emit_tuple> output_tuple; |
4551 | std::optional<ui_out_emit_list> sources_list; | |
0e350a05 | 4552 | |
bd742128 | 4553 | gdb_assert (group_by_objfile || uiout->is_mi_like_p ()); |
0e350a05 AB |
4554 | |
4555 | for (objfile *objfile : current_program_space->objfiles ()) | |
4556 | { | |
1fb1ce02 AB |
4557 | if (group_by_objfile) |
4558 | { | |
4559 | output_tuple.emplace (uiout, nullptr); | |
972f7a4b TT |
4560 | uiout->field_string ("filename", objfile_name (objfile), |
4561 | file_name_style.style ()); | |
bd742128 | 4562 | uiout->text (":\n"); |
1fb1ce02 | 4563 | bool debug_fully_readin = !objfile->has_unexpanded_symtabs (); |
bd742128 | 4564 | if (uiout->is_mi_like_p ()) |
1fb1ce02 | 4565 | { |
bd742128 AB |
4566 | const char *debug_info_state; |
4567 | if (objfile_has_symbols (objfile)) | |
4568 | { | |
4569 | if (debug_fully_readin) | |
4570 | debug_info_state = "fully-read"; | |
4571 | else | |
4572 | debug_info_state = "partially-read"; | |
4573 | } | |
1fb1ce02 | 4574 | else |
bd742128 AB |
4575 | debug_info_state = "none"; |
4576 | current_uiout->field_string ("debug-info", debug_info_state); | |
1fb1ce02 AB |
4577 | } |
4578 | else | |
bd742128 AB |
4579 | { |
4580 | if (!debug_fully_readin) | |
4581 | uiout->text ("(Full debug information has not yet been read " | |
4582 | "for this file.)\n"); | |
4583 | if (!objfile_has_symbols (objfile)) | |
4584 | uiout->text ("(Objfile has no debug information.)\n"); | |
4585 | uiout->text ("\n"); | |
4586 | } | |
1fb1ce02 AB |
4587 | sources_list.emplace (uiout, "sources"); |
4588 | } | |
4589 | ||
0e350a05 AB |
4590 | for (compunit_symtab *cu : objfile->compunits ()) |
4591 | { | |
102cc235 | 4592 | for (symtab *s : cu->filetabs ()) |
0e350a05 AB |
4593 | { |
4594 | const char *file = symtab_to_filename_for_display (s); | |
4595 | const char *fullname = symtab_to_fullname (s); | |
4596 | data.output (file, fullname, true); | |
4597 | } | |
4598 | } | |
1fb1ce02 AB |
4599 | |
4600 | if (group_by_objfile) | |
4601 | { | |
4602 | objfile->map_symbol_filenames (data, true /* need_fullname */); | |
bd742128 AB |
4603 | if (data.printed_filename_p ()) |
4604 | uiout->text ("\n\n"); | |
1fb1ce02 AB |
4605 | data.reset_output (); |
4606 | sources_list.reset (); | |
4607 | output_tuple.reset (); | |
4608 | } | |
0e350a05 AB |
4609 | } |
4610 | ||
1fb1ce02 AB |
4611 | if (!group_by_objfile) |
4612 | { | |
1fb1ce02 AB |
4613 | data.reset_output (); |
4614 | map_symbol_filenames (data, true /*need_fullname*/); | |
1fb1ce02 | 4615 | } |
0e350a05 AB |
4616 | } |
4617 | ||
4a0788e0 AB |
4618 | /* Implement the 'info sources' command. */ |
4619 | ||
28cd9371 PW |
4620 | static void |
4621 | info_sources_command (const char *args, int from_tty) | |
c906108c | 4622 | { |
c906108c | 4623 | if (!have_full_symbols () && !have_partial_symbols ()) |
4a0788e0 | 4624 | error (_("No symbol table is loaded. Use the \"file\" command.")); |
28cd9371 | 4625 | |
4a0788e0 AB |
4626 | filename_partial_match_opts match_opts; |
4627 | auto group = make_info_sources_options_def_group (&match_opts); | |
28cd9371 PW |
4628 | gdb::option::process_options |
4629 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_ERROR, group); | |
9fdc877b | 4630 | |
4a0788e0 AB |
4631 | if (match_opts.dirname && match_opts.basename) |
4632 | error (_("You cannot give both -basename and -dirname to 'info sources'.")); | |
c906108c | 4633 | |
4a0788e0 | 4634 | const char *regex = nullptr; |
0e350a05 | 4635 | if (args != NULL && *args != '\000') |
4a0788e0 | 4636 | regex = args; |
28cd9371 | 4637 | |
4a0788e0 AB |
4638 | if ((match_opts.dirname || match_opts.basename) && regex == nullptr) |
4639 | error (_("Missing REGEXP for 'info sources'.")); | |
28cd9371 | 4640 | |
4a0788e0 AB |
4641 | info_sources_filter::match_on match_type; |
4642 | if (match_opts.dirname) | |
4643 | match_type = info_sources_filter::match_on::DIRNAME; | |
4644 | else if (match_opts.basename) | |
4645 | match_type = info_sources_filter::match_on::BASENAME; | |
28cd9371 | 4646 | else |
4a0788e0 AB |
4647 | match_type = info_sources_filter::match_on::FULLNAME; |
4648 | ||
4649 | info_sources_filter filter (match_type, regex); | |
bd742128 | 4650 | info_sources_worker (current_uiout, true, filter); |
c906108c SS |
4651 | } |
4652 | ||
470c0b1c AB |
4653 | /* Compare FILE against all the entries of FILENAMES. If BASENAMES is |
4654 | true compare only lbasename of FILENAMES. */ | |
fbd9ab74 | 4655 | |
470c0b1c AB |
4656 | static bool |
4657 | file_matches (const char *file, const std::vector<const char *> &filenames, | |
4658 | bool basenames) | |
c906108c | 4659 | { |
470c0b1c AB |
4660 | if (filenames.empty ()) |
4661 | return true; | |
c906108c | 4662 | |
470c0b1c | 4663 | for (const char *name : filenames) |
c906108c | 4664 | { |
470c0b1c AB |
4665 | name = (basenames ? lbasename (name) : name); |
4666 | if (compare_filenames_for_search (file, name)) | |
4667 | return true; | |
c906108c | 4668 | } |
470c0b1c AB |
4669 | |
4670 | return false; | |
c906108c SS |
4671 | } |
4672 | ||
f97a63c5 AB |
4673 | /* Helper function for std::sort on symbol_search objects. Can only sort |
4674 | symbols, not minimal symbols. */ | |
eca864fe | 4675 | |
b9c04fb2 TT |
4676 | int |
4677 | symbol_search::compare_search_syms (const symbol_search &sym_a, | |
4678 | const symbol_search &sym_b) | |
434d2d4f | 4679 | { |
b52109bc DE |
4680 | int c; |
4681 | ||
4206d69e TT |
4682 | c = FILENAME_CMP (sym_a.symbol->symtab ()->filename, |
4683 | sym_b.symbol->symtab ()->filename); | |
b52109bc DE |
4684 | if (c != 0) |
4685 | return c; | |
434d2d4f | 4686 | |
b9c04fb2 TT |
4687 | if (sym_a.block != sym_b.block) |
4688 | return sym_a.block - sym_b.block; | |
b52109bc | 4689 | |
987012b8 | 4690 | return strcmp (sym_a.symbol->print_name (), sym_b.symbol->print_name ()); |
434d2d4f DJ |
4691 | } |
4692 | ||
12615cba PW |
4693 | /* Returns true if the type_name of symbol_type of SYM matches TREG. |
4694 | If SYM has no symbol_type or symbol_name, returns false. */ | |
4695 | ||
4696 | bool | |
4697 | treg_matches_sym_type_name (const compiled_regex &treg, | |
4698 | const struct symbol *sym) | |
4699 | { | |
4700 | struct type *sym_type; | |
4701 | std::string printed_sym_type_name; | |
4702 | ||
b1e678d9 AB |
4703 | symbol_lookup_debug_printf_v ("treg_matches_sym_type_name, sym %s", |
4704 | sym->natural_name ()); | |
12615cba | 4705 | |
5f9c5a63 | 4706 | sym_type = sym->type (); |
12615cba PW |
4707 | if (sym_type == NULL) |
4708 | return false; | |
4709 | ||
43d397ca PW |
4710 | { |
4711 | scoped_switch_to_sym_language_if_auto l (sym); | |
12615cba | 4712 | |
12615cba | 4713 | printed_sym_type_name = type_to_string (sym_type); |
43d397ca PW |
4714 | } |
4715 | ||
b1e678d9 AB |
4716 | symbol_lookup_debug_printf_v ("sym_type_name %s", |
4717 | printed_sym_type_name.c_str ()); | |
12615cba PW |
4718 | |
4719 | if (printed_sym_type_name.empty ()) | |
4720 | return false; | |
4721 | ||
4722 | return treg.exec (printed_sym_type_name.c_str (), 0, NULL, 0) == 0; | |
4723 | } | |
4724 | ||
f97a63c5 AB |
4725 | /* See symtab.h. */ |
4726 | ||
4727 | bool | |
4728 | global_symbol_searcher::is_suitable_msymbol | |
4729 | (const enum search_domain kind, const minimal_symbol *msymbol) | |
4730 | { | |
60f62e2b | 4731 | switch (msymbol->type ()) |
f97a63c5 AB |
4732 | { |
4733 | case mst_data: | |
4734 | case mst_bss: | |
4735 | case mst_file_data: | |
4736 | case mst_file_bss: | |
4737 | return kind == VARIABLES_DOMAIN; | |
4738 | case mst_text: | |
4739 | case mst_file_text: | |
4740 | case mst_solib_trampoline: | |
4741 | case mst_text_gnu_ifunc: | |
4742 | return kind == FUNCTIONS_DOMAIN; | |
4743 | default: | |
4744 | return false; | |
4745 | } | |
4746 | } | |
4747 | ||
4748 | /* See symtab.h. */ | |
4749 | ||
4750 | bool | |
4751 | global_symbol_searcher::expand_symtabs | |
6b09f134 | 4752 | (objfile *objfile, const std::optional<compiled_regex> &preg) const |
f97a63c5 AB |
4753 | { |
4754 | enum search_domain kind = m_kind; | |
4755 | bool found_msymbol = false; | |
4756 | ||
c5a9fcdf TT |
4757 | auto do_file_match = [&] (const char *filename, bool basenames) |
4758 | { | |
4759 | return file_matches (filename, filenames, basenames); | |
4760 | }; | |
4761 | gdb::function_view<expand_symtabs_file_matcher_ftype> file_matcher = nullptr; | |
4762 | if (!filenames.empty ()) | |
4763 | file_matcher = do_file_match; | |
4764 | ||
4d080b46 | 4765 | objfile->expand_symtabs_matching |
c5a9fcdf | 4766 | (file_matcher, |
4d080b46 TT |
4767 | &lookup_name_info::match_any (), |
4768 | [&] (const char *symname) | |
4769 | { | |
4770 | return (!preg.has_value () | |
4771 | || preg->exec (symname, 0, NULL, 0) == 0); | |
4772 | }, | |
4773 | NULL, | |
03a8ea51 | 4774 | SEARCH_GLOBAL_BLOCK | SEARCH_STATIC_BLOCK, |
3bfa51a7 | 4775 | UNDEF_DOMAIN, |
4d080b46 | 4776 | kind); |
f97a63c5 AB |
4777 | |
4778 | /* Here, we search through the minimal symbol tables for functions and | |
4779 | variables that match, and force their symbols to be read. This is in | |
4780 | particular necessary for demangled variable names, which are no longer | |
4781 | put into the partial symbol tables. The symbol will then be found | |
4782 | during the scan of symtabs later. | |
4783 | ||
4784 | For functions, find_pc_symtab should succeed if we have debug info for | |
4785 | the function, for variables we have to call | |
4786 | lookup_symbol_in_objfile_from_linkage_name to determine if the | |
4787 | variable has debug info. If the lookup fails, set found_msymbol so | |
4788 | that we will rescan to print any matching symbols without debug info. | |
4789 | We only search the objfile the msymbol came from, we no longer search | |
4790 | all objfiles. In large programs (1000s of shared libs) searching all | |
4791 | objfiles is not worth the pain. */ | |
4792 | if (filenames.empty () | |
4793 | && (kind == VARIABLES_DOMAIN || kind == FUNCTIONS_DOMAIN)) | |
4794 | { | |
4795 | for (minimal_symbol *msymbol : objfile->msymbols ()) | |
4796 | { | |
4797 | QUIT; | |
4798 | ||
4799 | if (msymbol->created_by_gdb) | |
4800 | continue; | |
4801 | ||
4802 | if (is_suitable_msymbol (kind, msymbol)) | |
4803 | { | |
4804 | if (!preg.has_value () | |
4805 | || preg->exec (msymbol->natural_name (), 0, | |
4806 | NULL, 0) == 0) | |
4807 | { | |
4808 | /* An important side-effect of these lookup functions is | |
4809 | to expand the symbol table if msymbol is found, later | |
4810 | in the process we will add matching symbols or | |
4811 | msymbols to the results list, and that requires that | |
4812 | the symbols tables are expanded. */ | |
4813 | if (kind == FUNCTIONS_DOMAIN | |
4814 | ? (find_pc_compunit_symtab | |
4aeddc50 | 4815 | (msymbol->value_address (objfile)) == NULL) |
f97a63c5 AB |
4816 | : (lookup_symbol_in_objfile_from_linkage_name |
4817 | (objfile, msymbol->linkage_name (), | |
4818 | VAR_DOMAIN) | |
4819 | .symbol == NULL)) | |
4820 | found_msymbol = true; | |
4821 | } | |
4822 | } | |
4823 | } | |
4824 | } | |
4825 | ||
4826 | return found_msymbol; | |
4827 | } | |
4828 | ||
4829 | /* See symtab.h. */ | |
4830 | ||
c2512106 | 4831 | bool |
f97a63c5 AB |
4832 | global_symbol_searcher::add_matching_symbols |
4833 | (objfile *objfile, | |
6b09f134 LS |
4834 | const std::optional<compiled_regex> &preg, |
4835 | const std::optional<compiled_regex> &treg, | |
c2512106 | 4836 | std::set<symbol_search> *result_set) const |
f97a63c5 AB |
4837 | { |
4838 | enum search_domain kind = m_kind; | |
4839 | ||
4840 | /* Add matching symbols (if not already present). */ | |
4841 | for (compunit_symtab *cust : objfile->compunits ()) | |
4842 | { | |
af39c5c8 | 4843 | const struct blockvector *bv = cust->blockvector (); |
f97a63c5 AB |
4844 | |
4845 | for (block_enum block : { GLOBAL_BLOCK, STATIC_BLOCK }) | |
4846 | { | |
63d609de | 4847 | const struct block *b = bv->block (block); |
f97a63c5 | 4848 | |
548a89df | 4849 | for (struct symbol *sym : block_iterator_range (b)) |
f97a63c5 | 4850 | { |
4206d69e | 4851 | struct symtab *real_symtab = sym->symtab (); |
f97a63c5 AB |
4852 | |
4853 | QUIT; | |
4854 | ||
4855 | /* Check first sole REAL_SYMTAB->FILENAME. It does | |
4856 | not need to be a substring of symtab_to_fullname as | |
4857 | it may contain "./" etc. */ | |
4858 | if ((file_matches (real_symtab->filename, filenames, false) | |
4859 | || ((basenames_may_differ | |
4860 | || file_matches (lbasename (real_symtab->filename), | |
4861 | filenames, true)) | |
4862 | && file_matches (symtab_to_fullname (real_symtab), | |
4863 | filenames, false))) | |
4864 | && ((!preg.has_value () | |
4865 | || preg->exec (sym->natural_name (), 0, | |
4866 | NULL, 0) == 0) | |
4867 | && ((kind == VARIABLES_DOMAIN | |
66d7f48f SM |
4868 | && sym->aclass () != LOC_TYPEDEF |
4869 | && sym->aclass () != LOC_UNRESOLVED | |
4870 | && sym->aclass () != LOC_BLOCK | |
f97a63c5 AB |
4871 | /* LOC_CONST can be used for more than |
4872 | just enums, e.g., c++ static const | |
4873 | members. We only want to skip enums | |
4874 | here. */ | |
66d7f48f | 4875 | && !(sym->aclass () == LOC_CONST |
5f9c5a63 | 4876 | && (sym->type ()->code () |
f97a63c5 AB |
4877 | == TYPE_CODE_ENUM)) |
4878 | && (!treg.has_value () | |
4879 | || treg_matches_sym_type_name (*treg, sym))) | |
4880 | || (kind == FUNCTIONS_DOMAIN | |
66d7f48f | 4881 | && sym->aclass () == LOC_BLOCK |
f97a63c5 AB |
4882 | && (!treg.has_value () |
4883 | || treg_matches_sym_type_name (*treg, | |
4884 | sym))) | |
4885 | || (kind == TYPES_DOMAIN | |
66d7f48f | 4886 | && sym->aclass () == LOC_TYPEDEF |
6c9c307c | 4887 | && sym->domain () != MODULE_DOMAIN) |
f97a63c5 | 4888 | || (kind == MODULES_DOMAIN |
6c9c307c | 4889 | && sym->domain () == MODULE_DOMAIN |
5d0027b9 | 4890 | && sym->line () != 0)))) |
f97a63c5 | 4891 | { |
c2512106 AB |
4892 | if (result_set->size () < m_max_search_results) |
4893 | { | |
4894 | /* Match, insert if not already in the results. */ | |
4895 | symbol_search ss (block, sym); | |
4896 | if (result_set->find (ss) == result_set->end ()) | |
4897 | result_set->insert (ss); | |
4898 | } | |
4899 | else | |
4900 | return false; | |
f97a63c5 AB |
4901 | } |
4902 | } | |
4903 | } | |
4904 | } | |
c2512106 AB |
4905 | |
4906 | return true; | |
f97a63c5 AB |
4907 | } |
4908 | ||
4909 | /* See symtab.h. */ | |
4910 | ||
c2512106 | 4911 | bool |
f97a63c5 | 4912 | global_symbol_searcher::add_matching_msymbols |
6b09f134 | 4913 | (objfile *objfile, const std::optional<compiled_regex> &preg, |
f97a63c5 AB |
4914 | std::vector<symbol_search> *results) const |
4915 | { | |
4916 | enum search_domain kind = m_kind; | |
4917 | ||
4918 | for (minimal_symbol *msymbol : objfile->msymbols ()) | |
4919 | { | |
4920 | QUIT; | |
4921 | ||
4922 | if (msymbol->created_by_gdb) | |
4923 | continue; | |
4924 | ||
4925 | if (is_suitable_msymbol (kind, msymbol)) | |
4926 | { | |
4927 | if (!preg.has_value () | |
4928 | || preg->exec (msymbol->natural_name (), 0, | |
4929 | NULL, 0) == 0) | |
4930 | { | |
4931 | /* For functions we can do a quick check of whether the | |
4932 | symbol might be found via find_pc_symtab. */ | |
4933 | if (kind != FUNCTIONS_DOMAIN | |
4934 | || (find_pc_compunit_symtab | |
4aeddc50 | 4935 | (msymbol->value_address (objfile)) == NULL)) |
f97a63c5 AB |
4936 | { |
4937 | if (lookup_symbol_in_objfile_from_linkage_name | |
4938 | (objfile, msymbol->linkage_name (), | |
4939 | VAR_DOMAIN).symbol == NULL) | |
4940 | { | |
4941 | /* Matching msymbol, add it to the results list. */ | |
c2512106 AB |
4942 | if (results->size () < m_max_search_results) |
4943 | results->emplace_back (GLOBAL_BLOCK, msymbol, objfile); | |
4944 | else | |
4945 | return false; | |
f97a63c5 AB |
4946 | } |
4947 | } | |
4948 | } | |
4949 | } | |
4950 | } | |
12615cba | 4951 | |
c2512106 | 4952 | return true; |
434d2d4f | 4953 | } |
5bd98722 | 4954 | |
470c0b1c | 4955 | /* See symtab.h. */ |
c378eb4e | 4956 | |
b9c04fb2 | 4957 | std::vector<symbol_search> |
470c0b1c | 4958 | global_symbol_searcher::search () const |
c906108c | 4959 | { |
6b09f134 LS |
4960 | std::optional<compiled_regex> preg; |
4961 | std::optional<compiled_regex> treg; | |
c906108c | 4962 | |
470c0b1c | 4963 | gdb_assert (m_kind != ALL_DOMAIN); |
e8930875 | 4964 | |
470c0b1c | 4965 | if (m_symbol_name_regexp != NULL) |
c906108c | 4966 | { |
470c0b1c | 4967 | const char *symbol_name_regexp = m_symbol_name_regexp; |
9c48a8e6 | 4968 | std::string symbol_name_regexp_holder; |
470c0b1c | 4969 | |
c906108c | 4970 | /* Make sure spacing is right for C++ operators. |
dda83cd7 SM |
4971 | This is just a courtesy to make the matching less sensitive |
4972 | to how many spaces the user leaves between 'operator' | |
4973 | and <TYPENAME> or <OPERATOR>. */ | |
96142726 | 4974 | const char *opend; |
470c0b1c | 4975 | const char *opname = operator_chars (symbol_name_regexp, &opend); |
433759f7 | 4976 | |
c906108c | 4977 | if (*opname) |
c5aa993b | 4978 | { |
3e43a32a | 4979 | int fix = -1; /* -1 means ok; otherwise number of |
dda83cd7 | 4980 | spaces needed. */ |
433759f7 | 4981 | |
c5aa993b JM |
4982 | if (isalpha (*opname) || *opname == '_' || *opname == '$') |
4983 | { | |
c378eb4e | 4984 | /* There should 1 space between 'operator' and 'TYPENAME'. */ |
c5aa993b JM |
4985 | if (opname[-1] != ' ' || opname[-2] == ' ') |
4986 | fix = 1; | |
4987 | } | |
4988 | else | |
4989 | { | |
c378eb4e | 4990 | /* There should 0 spaces between 'operator' and 'OPERATOR'. */ |
c5aa993b JM |
4991 | if (opname[-1] == ' ') |
4992 | fix = 0; | |
4993 | } | |
c378eb4e | 4994 | /* If wrong number of spaces, fix it. */ |
c5aa993b JM |
4995 | if (fix >= 0) |
4996 | { | |
9c48a8e6 SM |
4997 | symbol_name_regexp_holder |
4998 | = string_printf ("operator%.*s%s", fix, " ", opname); | |
4999 | symbol_name_regexp = symbol_name_regexp_holder.c_str (); | |
c5aa993b JM |
5000 | } |
5001 | } | |
5002 | ||
2d7cc5c7 PA |
5003 | int cflags = REG_NOSUB | (case_sensitivity == case_sensitive_off |
5004 | ? REG_ICASE : 0); | |
470c0b1c AB |
5005 | preg.emplace (symbol_name_regexp, cflags, |
5006 | _("Invalid regexp")); | |
c906108c SS |
5007 | } |
5008 | ||
470c0b1c | 5009 | if (m_symbol_type_regexp != NULL) |
12615cba PW |
5010 | { |
5011 | int cflags = REG_NOSUB | (case_sensitivity == case_sensitive_off | |
5012 | ? REG_ICASE : 0); | |
470c0b1c AB |
5013 | treg.emplace (m_symbol_type_regexp, cflags, |
5014 | _("Invalid regexp")); | |
12615cba PW |
5015 | } |
5016 | ||
f97a63c5 | 5017 | bool found_msymbol = false; |
c2512106 | 5018 | std::set<symbol_search> result_set; |
2030c079 | 5019 | for (objfile *objfile : current_program_space->objfiles ()) |
d8aeb77f | 5020 | { |
f97a63c5 AB |
5021 | /* Expand symtabs within objfile that possibly contain matching |
5022 | symbols. */ | |
5023 | found_msymbol |= expand_symtabs (objfile, preg); | |
5024 | ||
c2512106 AB |
5025 | /* Find matching symbols within OBJFILE and add them in to the |
5026 | RESULT_SET set. Use a set here so that we can easily detect | |
5027 | duplicates as we go, and can therefore track how many unique | |
5028 | matches we have found so far. */ | |
5029 | if (!add_matching_symbols (objfile, preg, treg, &result_set)) | |
5030 | break; | |
d8aeb77f | 5031 | } |
c906108c | 5032 | |
c2512106 AB |
5033 | /* Convert the result set into a sorted result list, as std::set is |
5034 | defined to be sorted then no explicit call to std::sort is needed. */ | |
5035 | std::vector<symbol_search> result (result_set.begin (), result_set.end ()); | |
b52109bc | 5036 | |
470c0b1c | 5037 | /* If there are no debug symbols, then add matching minsyms. But if the |
f97a63c5 AB |
5038 | user wants to see symbols matching a type regexp, then never give a |
5039 | minimal symbol, as we assume that a minimal symbol does not have a | |
5040 | type. */ | |
5041 | if ((found_msymbol || (filenames.empty () && m_kind == VARIABLES_DOMAIN)) | |
470c0b1c | 5042 | && !m_exclude_minsyms |
a8462bbf | 5043 | && !treg.has_value ()) |
c906108c | 5044 | { |
f97a63c5 | 5045 | gdb_assert (m_kind == VARIABLES_DOMAIN || m_kind == FUNCTIONS_DOMAIN); |
2030c079 | 5046 | for (objfile *objfile : current_program_space->objfiles ()) |
c2512106 AB |
5047 | if (!add_matching_msymbols (objfile, preg, &result)) |
5048 | break; | |
c906108c SS |
5049 | } |
5050 | ||
b9c04fb2 | 5051 | return result; |
c906108c SS |
5052 | } |
5053 | ||
5f512a7d | 5054 | /* See symtab.h. */ |
c378eb4e | 5055 | |
5f512a7d AB |
5056 | std::string |
5057 | symbol_to_info_string (struct symbol *sym, int block, | |
5058 | enum search_domain kind) | |
c906108c | 5059 | { |
5f512a7d | 5060 | std::string str; |
05cba821 | 5061 | |
5f512a7d | 5062 | gdb_assert (block == GLOBAL_BLOCK || block == STATIC_BLOCK); |
b744723f | 5063 | |
176620f1 | 5064 | if (kind != TYPES_DOMAIN && block == STATIC_BLOCK) |
5f512a7d | 5065 | str += "static "; |
c5aa993b | 5066 | |
c378eb4e | 5067 | /* Typedef that is not a C++ class. */ |
176620f1 | 5068 | if (kind == TYPES_DOMAIN |
6c9c307c | 5069 | && sym->domain () != STRUCT_DOMAIN) |
eb86c5e2 | 5070 | { |
5f512a7d AB |
5071 | string_file tmp_stream; |
5072 | ||
eb86c5e2 AB |
5073 | /* FIXME: For C (and C++) we end up with a difference in output here |
5074 | between how a typedef is printed, and non-typedefs are printed. | |
5075 | The TYPEDEF_PRINT code places a ";" at the end in an attempt to | |
5076 | appear C-like, while TYPE_PRINT doesn't. | |
5077 | ||
5078 | For the struct printing case below, things are worse, we force | |
5079 | printing of the ";" in this function, which is going to be wrong | |
5080 | for languages that don't require a ";" between statements. */ | |
5f9c5a63 SM |
5081 | if (sym->type ()->code () == TYPE_CODE_TYPEDEF) |
5082 | typedef_print (sym->type (), sym, &tmp_stream); | |
eb86c5e2 | 5083 | else |
5f9c5a63 | 5084 | type_print (sym->type (), "", &tmp_stream, -1); |
5f512a7d | 5085 | str += tmp_stream.string (); |
eb86c5e2 | 5086 | } |
c378eb4e | 5087 | /* variable, func, or typedef-that-is-c++-class. */ |
d50bd42b DE |
5088 | else if (kind < TYPES_DOMAIN |
5089 | || (kind == TYPES_DOMAIN | |
6c9c307c | 5090 | && sym->domain () == STRUCT_DOMAIN)) |
c906108c | 5091 | { |
5f512a7d AB |
5092 | string_file tmp_stream; |
5093 | ||
5f9c5a63 | 5094 | type_print (sym->type (), |
66d7f48f | 5095 | (sym->aclass () == LOC_TYPEDEF |
987012b8 | 5096 | ? "" : sym->print_name ()), |
5f512a7d | 5097 | &tmp_stream, 0); |
c906108c | 5098 | |
5f512a7d AB |
5099 | str += tmp_stream.string (); |
5100 | str += ";"; | |
c906108c | 5101 | } |
59c35742 AB |
5102 | /* Printing of modules is currently done here, maybe at some future |
5103 | point we might want a language specific method to print the module | |
5104 | symbol so that we can customise the output more. */ | |
5105 | else if (kind == MODULES_DOMAIN) | |
5f512a7d AB |
5106 | str += sym->print_name (); |
5107 | ||
5108 | return str; | |
5109 | } | |
5110 | ||
5111 | /* Helper function for symbol info commands, for example 'info functions', | |
5112 | 'info variables', etc. KIND is the kind of symbol we searched for, and | |
5113 | BLOCK is the type of block the symbols was found in, either GLOBAL_BLOCK | |
5114 | or STATIC_BLOCK. SYM is the symbol we found. If LAST is not NULL, | |
5115 | print file and line number information for the symbol as well. Skip | |
5116 | printing the filename if it matches LAST. */ | |
5117 | ||
5118 | static void | |
5119 | print_symbol_info (enum search_domain kind, | |
5120 | struct symbol *sym, | |
5121 | int block, const char *last) | |
5122 | { | |
5123 | scoped_switch_to_sym_language_if_auto l (sym); | |
4206d69e | 5124 | struct symtab *s = sym->symtab (); |
5f512a7d AB |
5125 | |
5126 | if (last != NULL) | |
5127 | { | |
5128 | const char *s_filename = symtab_to_filename_for_display (s); | |
5129 | ||
5130 | if (filename_cmp (last, s_filename) != 0) | |
5131 | { | |
6cb06a8c TT |
5132 | gdb_printf (_("\nFile %ps:\n"), |
5133 | styled_string (file_name_style.style (), | |
5134 | s_filename)); | |
5f512a7d AB |
5135 | } |
5136 | ||
5d0027b9 | 5137 | if (sym->line () != 0) |
6cb06a8c | 5138 | gdb_printf ("%d:\t", sym->line ()); |
5f512a7d | 5139 | else |
0426ad51 | 5140 | gdb_puts ("\t"); |
5f512a7d AB |
5141 | } |
5142 | ||
5143 | std::string str = symbol_to_info_string (sym, block, kind); | |
6cb06a8c | 5144 | gdb_printf ("%s\n", str.c_str ()); |
c906108c SS |
5145 | } |
5146 | ||
5147 | /* This help function for symtab_symbol_info() prints information | |
c378eb4e MS |
5148 | for non-debugging symbols to gdb_stdout. */ |
5149 | ||
c906108c | 5150 | static void |
7c7b6655 | 5151 | print_msymbol_info (struct bound_minimal_symbol msymbol) |
c906108c | 5152 | { |
08feed99 | 5153 | struct gdbarch *gdbarch = msymbol.objfile->arch (); |
3ac4495a MS |
5154 | char *tmp; |
5155 | ||
d80b854b | 5156 | if (gdbarch_addr_bit (gdbarch) <= 32) |
4aeddc50 | 5157 | tmp = hex_string_custom (msymbol.value_address () |
bb599908 PH |
5158 | & (CORE_ADDR) 0xffffffff, |
5159 | 8); | |
3ac4495a | 5160 | else |
4aeddc50 | 5161 | tmp = hex_string_custom (msymbol.value_address (), |
bb599908 | 5162 | 16); |
6a831f06 PA |
5163 | |
5164 | ui_file_style sym_style = (msymbol.minsym->text_p () | |
5165 | ? function_name_style.style () | |
5166 | : ui_file_style ()); | |
5167 | ||
6cb06a8c TT |
5168 | gdb_printf (_("%ps %ps\n"), |
5169 | styled_string (address_style.style (), tmp), | |
5170 | styled_string (sym_style, msymbol.minsym->print_name ())); | |
c906108c SS |
5171 | } |
5172 | ||
5173 | /* This is the guts of the commands "info functions", "info types", and | |
c378eb4e | 5174 | "info variables". It calls search_symbols to find all matches and then |
c906108c | 5175 | print_[m]symbol_info to print out some useful information about the |
c378eb4e MS |
5176 | matches. */ |
5177 | ||
c906108c | 5178 | static void |
4acfdd20 | 5179 | symtab_symbol_info (bool quiet, bool exclude_minsyms, |
12615cba PW |
5180 | const char *regexp, enum search_domain kind, |
5181 | const char *t_regexp, int from_tty) | |
c906108c | 5182 | { |
bc043ef3 | 5183 | static const char * const classnames[] = |
59c35742 | 5184 | {"variable", "function", "type", "module"}; |
c7dcbf88 | 5185 | const char *last_filename = ""; |
c906108c SS |
5186 | int first = 1; |
5187 | ||
59c35742 | 5188 | gdb_assert (kind != ALL_DOMAIN); |
e8930875 | 5189 | |
b16507e0 AB |
5190 | if (regexp != nullptr && *regexp == '\0') |
5191 | regexp = nullptr; | |
5192 | ||
470c0b1c AB |
5193 | global_symbol_searcher spec (kind, regexp); |
5194 | spec.set_symbol_type_regexp (t_regexp); | |
5195 | spec.set_exclude_minsyms (exclude_minsyms); | |
5196 | std::vector<symbol_search> symbols = spec.search (); | |
c906108c | 5197 | |
12615cba PW |
5198 | if (!quiet) |
5199 | { | |
5200 | if (regexp != NULL) | |
5201 | { | |
5202 | if (t_regexp != NULL) | |
6cb06a8c | 5203 | gdb_printf |
12615cba | 5204 | (_("All %ss matching regular expression \"%s\"" |
0c95f9ed | 5205 | " with type matching regular expression \"%s\":\n"), |
12615cba PW |
5206 | classnames[kind], regexp, t_regexp); |
5207 | else | |
6cb06a8c TT |
5208 | gdb_printf (_("All %ss matching regular expression \"%s\":\n"), |
5209 | classnames[kind], regexp); | |
12615cba PW |
5210 | } |
5211 | else | |
5212 | { | |
5213 | if (t_regexp != NULL) | |
6cb06a8c | 5214 | gdb_printf |
12615cba | 5215 | (_("All defined %ss" |
0c95f9ed | 5216 | " with type matching regular expression \"%s\" :\n"), |
12615cba PW |
5217 | classnames[kind], t_regexp); |
5218 | else | |
6cb06a8c | 5219 | gdb_printf (_("All defined %ss:\n"), classnames[kind]); |
12615cba PW |
5220 | } |
5221 | } | |
c906108c | 5222 | |
b9c04fb2 | 5223 | for (const symbol_search &p : symbols) |
c906108c SS |
5224 | { |
5225 | QUIT; | |
5226 | ||
b9c04fb2 | 5227 | if (p.msymbol.minsym != NULL) |
c5aa993b JM |
5228 | { |
5229 | if (first) | |
5230 | { | |
12615cba | 5231 | if (!quiet) |
6cb06a8c | 5232 | gdb_printf (_("\nNon-debugging symbols:\n")); |
c5aa993b JM |
5233 | first = 0; |
5234 | } | |
b9c04fb2 | 5235 | print_msymbol_info (p.msymbol); |
c5aa993b | 5236 | } |
c906108c | 5237 | else |
c5aa993b JM |
5238 | { |
5239 | print_symbol_info (kind, | |
b9c04fb2 TT |
5240 | p.symbol, |
5241 | p.block, | |
c5aa993b | 5242 | last_filename); |
d01060f0 | 5243 | last_filename |
4206d69e | 5244 | = symtab_to_filename_for_display (p.symbol->symtab ()); |
c5aa993b | 5245 | } |
c906108c | 5246 | } |
c906108c SS |
5247 | } |
5248 | ||
4acfdd20 AB |
5249 | /* Structure to hold the values of the options used by the 'info variables' |
5250 | and 'info functions' commands. These correspond to the -q, -t, and -n | |
5251 | options. */ | |
5252 | ||
095252be | 5253 | struct info_vars_funcs_options |
4acfdd20 | 5254 | { |
491144b5 CB |
5255 | bool quiet = false; |
5256 | bool exclude_minsyms = false; | |
e0700ba4 | 5257 | std::string type_regexp; |
4acfdd20 AB |
5258 | }; |
5259 | ||
5260 | /* The options used by the 'info variables' and 'info functions' | |
5261 | commands. */ | |
5262 | ||
095252be AT |
5263 | static const gdb::option::option_def info_vars_funcs_options_defs[] = { |
5264 | gdb::option::boolean_option_def<info_vars_funcs_options> { | |
4acfdd20 | 5265 | "q", |
095252be | 5266 | [] (info_vars_funcs_options *opt) { return &opt->quiet; }, |
4acfdd20 AB |
5267 | nullptr, /* show_cmd_cb */ |
5268 | nullptr /* set_doc */ | |
5269 | }, | |
5270 | ||
095252be | 5271 | gdb::option::boolean_option_def<info_vars_funcs_options> { |
4acfdd20 | 5272 | "n", |
095252be | 5273 | [] (info_vars_funcs_options *opt) { return &opt->exclude_minsyms; }, |
4acfdd20 AB |
5274 | nullptr, /* show_cmd_cb */ |
5275 | nullptr /* set_doc */ | |
5276 | }, | |
5277 | ||
095252be | 5278 | gdb::option::string_option_def<info_vars_funcs_options> { |
4acfdd20 | 5279 | "t", |
e0700ba4 | 5280 | [] (info_vars_funcs_options *opt) { return &opt->type_regexp; }, |
4acfdd20 AB |
5281 | nullptr, /* show_cmd_cb */ |
5282 | nullptr /* set_doc */ | |
5283 | } | |
5284 | }; | |
5285 | ||
5286 | /* Returns the option group used by 'info variables' and 'info | |
5287 | functions'. */ | |
5288 | ||
5289 | static gdb::option::option_def_group | |
095252be | 5290 | make_info_vars_funcs_options_def_group (info_vars_funcs_options *opts) |
4acfdd20 | 5291 | { |
095252be | 5292 | return {{info_vars_funcs_options_defs}, opts}; |
4acfdd20 AB |
5293 | } |
5294 | ||
5295 | /* Command completer for 'info variables' and 'info functions'. */ | |
5296 | ||
5297 | static void | |
095252be AT |
5298 | info_vars_funcs_command_completer (struct cmd_list_element *ignore, |
5299 | completion_tracker &tracker, | |
5300 | const char *text, const char * /* word */) | |
4acfdd20 AB |
5301 | { |
5302 | const auto group | |
095252be | 5303 | = make_info_vars_funcs_options_def_group (nullptr); |
4acfdd20 AB |
5304 | if (gdb::option::complete_options |
5305 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
5306 | return; | |
5307 | ||
5308 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
5309 | symbol_completer (ignore, tracker, text, word); | |
5310 | } | |
5311 | ||
b16507e0 AB |
5312 | /* Implement the 'info variables' command. */ |
5313 | ||
0b39b52e | 5314 | static void |
12615cba | 5315 | info_variables_command (const char *args, int from_tty) |
0b39b52e | 5316 | { |
095252be AT |
5317 | info_vars_funcs_options opts; |
5318 | auto grp = make_info_vars_funcs_options_def_group (&opts); | |
4acfdd20 AB |
5319 | gdb::option::process_options |
5320 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5321 | if (args != nullptr && *args == '\0') | |
5322 | args = nullptr; | |
b16507e0 | 5323 | |
e0700ba4 SM |
5324 | symtab_symbol_info |
5325 | (opts.quiet, opts.exclude_minsyms, args, VARIABLES_DOMAIN, | |
5326 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
5327 | from_tty); | |
0b39b52e TT |
5328 | } |
5329 | ||
b16507e0 | 5330 | /* Implement the 'info functions' command. */ |
12615cba | 5331 | |
c906108c | 5332 | static void |
12615cba | 5333 | info_functions_command (const char *args, int from_tty) |
c906108c | 5334 | { |
095252be AT |
5335 | info_vars_funcs_options opts; |
5336 | ||
5337 | auto grp = make_info_vars_funcs_options_def_group (&opts); | |
4acfdd20 AB |
5338 | gdb::option::process_options |
5339 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5340 | if (args != nullptr && *args == '\0') | |
5341 | args = nullptr; | |
b16507e0 | 5342 | |
e0700ba4 SM |
5343 | symtab_symbol_info |
5344 | (opts.quiet, opts.exclude_minsyms, args, FUNCTIONS_DOMAIN, | |
5345 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
5346 | from_tty); | |
c906108c SS |
5347 | } |
5348 | ||
a8eab7c6 AB |
5349 | /* Holds the -q option for the 'info types' command. */ |
5350 | ||
5351 | struct info_types_options | |
5352 | { | |
491144b5 | 5353 | bool quiet = false; |
a8eab7c6 AB |
5354 | }; |
5355 | ||
5356 | /* The options used by the 'info types' command. */ | |
5357 | ||
5358 | static const gdb::option::option_def info_types_options_defs[] = { | |
5359 | gdb::option::boolean_option_def<info_types_options> { | |
5360 | "q", | |
5361 | [] (info_types_options *opt) { return &opt->quiet; }, | |
5362 | nullptr, /* show_cmd_cb */ | |
5363 | nullptr /* set_doc */ | |
5364 | } | |
5365 | }; | |
5366 | ||
5367 | /* Returns the option group used by 'info types'. */ | |
5368 | ||
5369 | static gdb::option::option_def_group | |
5370 | make_info_types_options_def_group (info_types_options *opts) | |
5371 | { | |
5372 | return {{info_types_options_defs}, opts}; | |
5373 | } | |
5374 | ||
5375 | /* Implement the 'info types' command. */ | |
357e46e7 | 5376 | |
c906108c | 5377 | static void |
a8eab7c6 | 5378 | info_types_command (const char *args, int from_tty) |
c906108c | 5379 | { |
a8eab7c6 AB |
5380 | info_types_options opts; |
5381 | ||
5382 | auto grp = make_info_types_options_def_group (&opts); | |
5383 | gdb::option::process_options | |
5384 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5385 | if (args != nullptr && *args == '\0') | |
5386 | args = nullptr; | |
4acfdd20 | 5387 | symtab_symbol_info (opts.quiet, false, args, TYPES_DOMAIN, NULL, from_tty); |
a8eab7c6 AB |
5388 | } |
5389 | ||
5390 | /* Command completer for 'info types' command. */ | |
5391 | ||
5392 | static void | |
5393 | info_types_command_completer (struct cmd_list_element *ignore, | |
5394 | completion_tracker &tracker, | |
5395 | const char *text, const char * /* word */) | |
5396 | { | |
5397 | const auto group | |
5398 | = make_info_types_options_def_group (nullptr); | |
5399 | if (gdb::option::complete_options | |
5400 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
5401 | return; | |
5402 | ||
5403 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
5404 | symbol_completer (ignore, tracker, text, word); | |
c906108c SS |
5405 | } |
5406 | ||
59c35742 AB |
5407 | /* Implement the 'info modules' command. */ |
5408 | ||
5409 | static void | |
5410 | info_modules_command (const char *args, int from_tty) | |
5411 | { | |
5412 | info_types_options opts; | |
5413 | ||
5414 | auto grp = make_info_types_options_def_group (&opts); | |
5415 | gdb::option::process_options | |
5416 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5417 | if (args != nullptr && *args == '\0') | |
5418 | args = nullptr; | |
5419 | symtab_symbol_info (opts.quiet, true, args, MODULES_DOMAIN, NULL, | |
5420 | from_tty); | |
5421 | } | |
5422 | ||
03d83cd5 RB |
5423 | /* Implement the 'info main' command. */ |
5424 | ||
5425 | static void | |
5426 | info_main_command (const char *args, int from_tty) | |
5427 | { | |
5428 | gdb_printf ("%s\n", main_name ()); | |
5429 | } | |
5430 | ||
c906108c | 5431 | static void |
0b39b52e | 5432 | rbreak_command (const char *regexp, int from_tty) |
c906108c | 5433 | { |
c80049d3 | 5434 | std::string string; |
470c0b1c | 5435 | const char *file_name = nullptr; |
c906108c | 5436 | |
470c0b1c | 5437 | if (regexp != nullptr) |
8bd10a10 | 5438 | { |
0b39b52e | 5439 | const char *colon = strchr (regexp, ':'); |
433759f7 | 5440 | |
2c074f49 HD |
5441 | /* Ignore the colon if it is part of a Windows drive. */ |
5442 | if (HAS_DRIVE_SPEC (regexp) | |
5443 | && (regexp[2] == '/' || regexp[2] == '\\')) | |
5444 | colon = strchr (STRIP_DRIVE_SPEC (regexp), ':'); | |
5445 | ||
8bd10a10 CM |
5446 | if (colon && *(colon + 1) != ':') |
5447 | { | |
5448 | int colon_index; | |
96142726 | 5449 | char *local_name; |
8bd10a10 CM |
5450 | |
5451 | colon_index = colon - regexp; | |
224c3ddb | 5452 | local_name = (char *) alloca (colon_index + 1); |
96142726 TT |
5453 | memcpy (local_name, regexp, colon_index); |
5454 | local_name[colon_index--] = 0; | |
5455 | while (isspace (local_name[colon_index])) | |
5456 | local_name[colon_index--] = 0; | |
5457 | file_name = local_name; | |
529480d0 | 5458 | regexp = skip_spaces (colon + 1); |
8bd10a10 CM |
5459 | } |
5460 | } | |
5461 | ||
470c0b1c AB |
5462 | global_symbol_searcher spec (FUNCTIONS_DOMAIN, regexp); |
5463 | if (file_name != nullptr) | |
5464 | spec.filenames.push_back (file_name); | |
5465 | std::vector<symbol_search> symbols = spec.search (); | |
c906108c | 5466 | |
c80049d3 | 5467 | scoped_rbreak_breakpoints finalize; |
b9c04fb2 | 5468 | for (const symbol_search &p : symbols) |
c906108c | 5469 | { |
b9c04fb2 | 5470 | if (p.msymbol.minsym == NULL) |
c5aa993b | 5471 | { |
4206d69e | 5472 | struct symtab *symtab = p.symbol->symtab (); |
d01060f0 | 5473 | const char *fullname = symtab_to_fullname (symtab); |
05cba821 | 5474 | |
c80049d3 | 5475 | string = string_printf ("%s:'%s'", fullname, |
987012b8 | 5476 | p.symbol->linkage_name ()); |
c80049d3 | 5477 | break_command (&string[0], from_tty); |
c7dcbf88 | 5478 | print_symbol_info (FUNCTIONS_DOMAIN, p.symbol, p.block, NULL); |
c5aa993b | 5479 | } |
c906108c | 5480 | else |
c5aa993b | 5481 | { |
c80049d3 | 5482 | string = string_printf ("'%s'", |
c9d95fa3 | 5483 | p.msymbol.minsym->linkage_name ()); |
6214f497 | 5484 | |
c80049d3 | 5485 | break_command (&string[0], from_tty); |
6cb06a8c TT |
5486 | gdb_printf ("<function, no debug info> %s;\n", |
5487 | p.msymbol.minsym->print_name ()); | |
c5aa993b | 5488 | } |
c906108c | 5489 | } |
c906108c | 5490 | } |
c906108c | 5491 | \f |
c5aa993b | 5492 | |
c62446b1 | 5493 | /* Evaluate if SYMNAME matches LOOKUP_NAME. */ |
1976171a JK |
5494 | |
5495 | static int | |
c62446b1 | 5496 | compare_symbol_name (const char *symbol_name, language symbol_language, |
b5ec771e | 5497 | const lookup_name_info &lookup_name, |
b5ec771e PA |
5498 | completion_match_result &match_res) |
5499 | { | |
d4c2a405 | 5500 | const language_defn *lang = language_def (symbol_language); |
1976171a | 5501 | |
b5ec771e | 5502 | symbol_name_matcher_ftype *name_match |
c9debfb9 | 5503 | = lang->get_symbol_name_matcher (lookup_name); |
1976171a | 5504 | |
a207cff2 | 5505 | return name_match (symbol_name, lookup_name, &match_res); |
1976171a JK |
5506 | } |
5507 | ||
b5ec771e | 5508 | /* See symtab.h. */ |
c906108c | 5509 | |
e08bd6c5 | 5510 | bool |
eb3ff9a5 | 5511 | completion_list_add_name (completion_tracker &tracker, |
b5ec771e | 5512 | language symbol_language, |
eb3ff9a5 | 5513 | const char *symname, |
b5ec771e | 5514 | const lookup_name_info &lookup_name, |
0d5cff50 | 5515 | const char *text, const char *word) |
c906108c | 5516 | { |
b5ec771e PA |
5517 | completion_match_result &match_res |
5518 | = tracker.reset_completion_match_result (); | |
5519 | ||
c378eb4e | 5520 | /* Clip symbols that cannot match. */ |
c62446b1 | 5521 | if (!compare_symbol_name (symname, symbol_language, lookup_name, match_res)) |
e08bd6c5 | 5522 | return false; |
c906108c | 5523 | |
b5ec771e PA |
5524 | /* Refresh SYMNAME from the match string. It's potentially |
5525 | different depending on language. (E.g., on Ada, the match may be | |
5526 | the encoded symbol name wrapped in "<>"). */ | |
5527 | symname = match_res.match.match (); | |
5528 | gdb_assert (symname != NULL); | |
5529 | ||
c906108c | 5530 | /* We have a match for a completion, so add SYMNAME to the current list |
c378eb4e | 5531 | of matches. Note that the name is moved to freshly malloc'd space. */ |
c906108c SS |
5532 | |
5533 | { | |
60a20c19 PA |
5534 | gdb::unique_xmalloc_ptr<char> completion |
5535 | = make_completion_match_str (symname, text, word); | |
ef0b411a | 5536 | |
a207cff2 PA |
5537 | /* Here we pass the match-for-lcd object to add_completion. Some |
5538 | languages match the user text against substrings of symbol | |
5539 | names in some cases. E.g., in C++, "b push_ba" completes to | |
5540 | "std::vector::push_back", "std::string::push_back", etc., and | |
5541 | in this case we want the completion lowest common denominator | |
5542 | to be "push_back" instead of "std::". */ | |
5543 | tracker.add_completion (std::move (completion), | |
a22ecf70 | 5544 | &match_res.match_for_lcd, text, word); |
c906108c | 5545 | } |
e08bd6c5 PA |
5546 | |
5547 | return true; | |
c906108c SS |
5548 | } |
5549 | ||
6da67eb1 PA |
5550 | /* completion_list_add_name wrapper for struct symbol. */ |
5551 | ||
5552 | static void | |
eb3ff9a5 PA |
5553 | completion_list_add_symbol (completion_tracker &tracker, |
5554 | symbol *sym, | |
b5ec771e | 5555 | const lookup_name_info &lookup_name, |
6da67eb1 PA |
5556 | const char *text, const char *word) |
5557 | { | |
e08bd6c5 PA |
5558 | if (!completion_list_add_name (tracker, sym->language (), |
5559 | sym->natural_name (), | |
5560 | lookup_name, text, word)) | |
5561 | return; | |
19a2740f AB |
5562 | |
5563 | /* C++ function symbols include the parameters within both the msymbol | |
5564 | name and the symbol name. The problem is that the msymbol name will | |
5565 | describe the parameters in the most basic way, with typedefs stripped | |
5566 | out, while the symbol name will represent the types as they appear in | |
5567 | the program. This means we will see duplicate entries in the | |
5568 | completion tracker. The following converts the symbol name back to | |
5569 | the msymbol name and removes the msymbol name from the completion | |
5570 | tracker. */ | |
5571 | if (sym->language () == language_cplus | |
6c9c307c | 5572 | && sym->domain () == VAR_DOMAIN |
66d7f48f | 5573 | && sym->aclass () == LOC_BLOCK) |
19a2740f AB |
5574 | { |
5575 | /* The call to canonicalize returns the empty string if the input | |
5576 | string is already in canonical form, thanks to this we don't | |
5577 | remove the symbol we just added above. */ | |
596dc4ad | 5578 | gdb::unique_xmalloc_ptr<char> str |
19a2740f | 5579 | = cp_canonicalize_string_no_typedefs (sym->natural_name ()); |
596dc4ad TT |
5580 | if (str != nullptr) |
5581 | tracker.remove_completion (str.get ()); | |
19a2740f | 5582 | } |
6da67eb1 PA |
5583 | } |
5584 | ||
5585 | /* completion_list_add_name wrapper for struct minimal_symbol. */ | |
5586 | ||
5587 | static void | |
eb3ff9a5 PA |
5588 | completion_list_add_msymbol (completion_tracker &tracker, |
5589 | minimal_symbol *sym, | |
b5ec771e | 5590 | const lookup_name_info &lookup_name, |
6da67eb1 PA |
5591 | const char *text, const char *word) |
5592 | { | |
c1b5c1eb | 5593 | completion_list_add_name (tracker, sym->language (), |
c9d95fa3 | 5594 | sym->natural_name (), |
1b026119 | 5595 | lookup_name, text, word); |
6da67eb1 PA |
5596 | } |
5597 | ||
b5ec771e | 5598 | |
69636828 AF |
5599 | /* ObjC: In case we are completing on a selector, look as the msymbol |
5600 | again and feed all the selectors into the mill. */ | |
5601 | ||
5602 | static void | |
eb3ff9a5 PA |
5603 | completion_list_objc_symbol (completion_tracker &tracker, |
5604 | struct minimal_symbol *msymbol, | |
b5ec771e | 5605 | const lookup_name_info &lookup_name, |
0d5cff50 | 5606 | const char *text, const char *word) |
69636828 AF |
5607 | { |
5608 | static char *tmp = NULL; | |
5609 | static unsigned int tmplen = 0; | |
9af17804 | 5610 | |
0d5cff50 | 5611 | const char *method, *category, *selector; |
69636828 | 5612 | char *tmp2 = NULL; |
9af17804 | 5613 | |
c9d95fa3 | 5614 | method = msymbol->natural_name (); |
69636828 AF |
5615 | |
5616 | /* Is it a method? */ | |
5617 | if ((method[0] != '-') && (method[0] != '+')) | |
5618 | return; | |
5619 | ||
1b026119 | 5620 | if (text[0] == '[') |
69636828 | 5621 | /* Complete on shortened method method. */ |
b5ec771e PA |
5622 | completion_list_add_name (tracker, language_objc, |
5623 | method + 1, | |
5624 | lookup_name, | |
1b026119 | 5625 | text, word); |
9af17804 | 5626 | |
69636828 AF |
5627 | while ((strlen (method) + 1) >= tmplen) |
5628 | { | |
5629 | if (tmplen == 0) | |
5630 | tmplen = 1024; | |
5631 | else | |
5632 | tmplen *= 2; | |
224c3ddb | 5633 | tmp = (char *) xrealloc (tmp, tmplen); |
69636828 AF |
5634 | } |
5635 | selector = strchr (method, ' '); | |
5636 | if (selector != NULL) | |
5637 | selector++; | |
9af17804 | 5638 | |
69636828 | 5639 | category = strchr (method, '('); |
9af17804 | 5640 | |
69636828 AF |
5641 | if ((category != NULL) && (selector != NULL)) |
5642 | { | |
5643 | memcpy (tmp, method, (category - method)); | |
5644 | tmp[category - method] = ' '; | |
5645 | memcpy (tmp + (category - method) + 1, selector, strlen (selector) + 1); | |
b5ec771e | 5646 | completion_list_add_name (tracker, language_objc, tmp, |
1b026119 PA |
5647 | lookup_name, text, word); |
5648 | if (text[0] == '[') | |
b5ec771e | 5649 | completion_list_add_name (tracker, language_objc, tmp + 1, |
1b026119 | 5650 | lookup_name, text, word); |
69636828 | 5651 | } |
9af17804 | 5652 | |
69636828 AF |
5653 | if (selector != NULL) |
5654 | { | |
5655 | /* Complete on selector only. */ | |
5656 | strcpy (tmp, selector); | |
5657 | tmp2 = strchr (tmp, ']'); | |
5658 | if (tmp2 != NULL) | |
5659 | *tmp2 = '\0'; | |
9af17804 | 5660 | |
b5ec771e | 5661 | completion_list_add_name (tracker, language_objc, tmp, |
1b026119 | 5662 | lookup_name, text, word); |
69636828 AF |
5663 | } |
5664 | } | |
5665 | ||
5666 | /* Break the non-quoted text based on the characters which are in | |
c378eb4e | 5667 | symbols. FIXME: This should probably be language-specific. */ |
69636828 | 5668 | |
6f937416 PA |
5669 | static const char * |
5670 | language_search_unquoted_string (const char *text, const char *p) | |
69636828 AF |
5671 | { |
5672 | for (; p > text; --p) | |
5673 | { | |
5674 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0') | |
5675 | continue; | |
5676 | else | |
5677 | { | |
5678 | if ((current_language->la_language == language_objc)) | |
5679 | { | |
c378eb4e | 5680 | if (p[-1] == ':') /* Might be part of a method name. */ |
69636828 AF |
5681 | continue; |
5682 | else if (p[-1] == '[' && (p[-2] == '-' || p[-2] == '+')) | |
c378eb4e | 5683 | p -= 2; /* Beginning of a method name. */ |
69636828 | 5684 | else if (p[-1] == ' ' || p[-1] == '(' || p[-1] == ')') |
c378eb4e | 5685 | { /* Might be part of a method name. */ |
6f937416 | 5686 | const char *t = p; |
69636828 AF |
5687 | |
5688 | /* Seeing a ' ' or a '(' is not conclusive evidence | |
5689 | that we are in the middle of a method name. However, | |
5690 | finding "-[" or "+[" should be pretty un-ambiguous. | |
5691 | Unfortunately we have to find it now to decide. */ | |
5692 | ||
5693 | while (t > text) | |
5694 | if (isalnum (t[-1]) || t[-1] == '_' || | |
5695 | t[-1] == ' ' || t[-1] == ':' || | |
5696 | t[-1] == '(' || t[-1] == ')') | |
5697 | --t; | |
5698 | else | |
5699 | break; | |
5700 | ||
5701 | if (t[-1] == '[' && (t[-2] == '-' || t[-2] == '+')) | |
c378eb4e MS |
5702 | p = t - 2; /* Method name detected. */ |
5703 | /* Else we leave with p unchanged. */ | |
69636828 AF |
5704 | } |
5705 | } | |
5706 | break; | |
5707 | } | |
5708 | } | |
5709 | return p; | |
5710 | } | |
5711 | ||
edb3359d | 5712 | static void |
eb3ff9a5 PA |
5713 | completion_list_add_fields (completion_tracker &tracker, |
5714 | struct symbol *sym, | |
b5ec771e | 5715 | const lookup_name_info &lookup_name, |
eb3ff9a5 | 5716 | const char *text, const char *word) |
edb3359d | 5717 | { |
66d7f48f | 5718 | if (sym->aclass () == LOC_TYPEDEF) |
edb3359d | 5719 | { |
5f9c5a63 | 5720 | struct type *t = sym->type (); |
78134374 | 5721 | enum type_code c = t->code (); |
edb3359d DJ |
5722 | int j; |
5723 | ||
5724 | if (c == TYPE_CODE_UNION || c == TYPE_CODE_STRUCT) | |
1f704f76 | 5725 | for (j = TYPE_N_BASECLASSES (t); j < t->num_fields (); j++) |
33d16dd9 | 5726 | if (t->field (j).name ()) |
c1b5c1eb | 5727 | completion_list_add_name (tracker, sym->language (), |
33d16dd9 | 5728 | t->field (j).name (), |
1b026119 | 5729 | lookup_name, text, word); |
edb3359d DJ |
5730 | } |
5731 | } | |
5732 | ||
f9d67a22 PA |
5733 | /* See symtab.h. */ |
5734 | ||
5735 | bool | |
5736 | symbol_is_function_or_method (symbol *sym) | |
5737 | { | |
5f9c5a63 | 5738 | switch (sym->type ()->code ()) |
f9d67a22 PA |
5739 | { |
5740 | case TYPE_CODE_FUNC: | |
5741 | case TYPE_CODE_METHOD: | |
5742 | return true; | |
5743 | default: | |
5744 | return false; | |
5745 | } | |
5746 | } | |
5747 | ||
5748 | /* See symtab.h. */ | |
5749 | ||
5750 | bool | |
5751 | symbol_is_function_or_method (minimal_symbol *msymbol) | |
5752 | { | |
60f62e2b | 5753 | switch (msymbol->type ()) |
f9d67a22 PA |
5754 | { |
5755 | case mst_text: | |
5756 | case mst_text_gnu_ifunc: | |
5757 | case mst_solib_trampoline: | |
5758 | case mst_file_text: | |
5759 | return true; | |
5760 | default: | |
5761 | return false; | |
5762 | } | |
5763 | } | |
5764 | ||
ca31ab1d PA |
5765 | /* See symtab.h. */ |
5766 | ||
5767 | bound_minimal_symbol | |
5768 | find_gnu_ifunc (const symbol *sym) | |
5769 | { | |
66d7f48f | 5770 | if (sym->aclass () != LOC_BLOCK) |
ca31ab1d PA |
5771 | return {}; |
5772 | ||
987012b8 | 5773 | lookup_name_info lookup_name (sym->search_name (), |
ca31ab1d | 5774 | symbol_name_match_type::SEARCH_NAME); |
e19b2d94 | 5775 | struct objfile *objfile = sym->objfile (); |
ca31ab1d | 5776 | |
6395b628 | 5777 | CORE_ADDR address = sym->value_block ()->entry_pc (); |
ca31ab1d PA |
5778 | minimal_symbol *ifunc = NULL; |
5779 | ||
5780 | iterate_over_minimal_symbols (objfile, lookup_name, | |
5781 | [&] (minimal_symbol *minsym) | |
5782 | { | |
60f62e2b SM |
5783 | if (minsym->type () == mst_text_gnu_ifunc |
5784 | || minsym->type () == mst_data_gnu_ifunc) | |
ca31ab1d | 5785 | { |
4aeddc50 | 5786 | CORE_ADDR msym_addr = minsym->value_address (objfile); |
60f62e2b | 5787 | if (minsym->type () == mst_data_gnu_ifunc) |
f50776aa | 5788 | { |
08feed99 | 5789 | struct gdbarch *gdbarch = objfile->arch (); |
328d42d8 SM |
5790 | msym_addr = gdbarch_convert_from_func_ptr_addr |
5791 | (gdbarch, msym_addr, current_inferior ()->top_target ()); | |
f50776aa PA |
5792 | } |
5793 | if (msym_addr == address) | |
5794 | { | |
5795 | ifunc = minsym; | |
5796 | return true; | |
5797 | } | |
ca31ab1d PA |
5798 | } |
5799 | return false; | |
5800 | }); | |
5801 | ||
5802 | if (ifunc != NULL) | |
5803 | return {ifunc, objfile}; | |
5804 | return {}; | |
5805 | } | |
5806 | ||
e11c72c7 GB |
5807 | /* Add matching symbols from SYMTAB to the current completion list. */ |
5808 | ||
5809 | static void | |
5810 | add_symtab_completions (struct compunit_symtab *cust, | |
eb3ff9a5 | 5811 | completion_tracker &tracker, |
f9d67a22 | 5812 | complete_symbol_mode mode, |
b5ec771e | 5813 | const lookup_name_info &lookup_name, |
e11c72c7 GB |
5814 | const char *text, const char *word, |
5815 | enum type_code code) | |
5816 | { | |
e11c72c7 GB |
5817 | int i; |
5818 | ||
ff6fa247 GB |
5819 | if (cust == NULL) |
5820 | return; | |
5821 | ||
e11c72c7 GB |
5822 | for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++) |
5823 | { | |
5824 | QUIT; | |
63d609de SM |
5825 | |
5826 | const struct block *b = cust->blockvector ()->block (i); | |
548a89df | 5827 | for (struct symbol *sym : block_iterator_range (b)) |
e11c72c7 | 5828 | { |
f9d67a22 PA |
5829 | if (completion_skip_symbol (mode, sym)) |
5830 | continue; | |
5831 | ||
e11c72c7 | 5832 | if (code == TYPE_CODE_UNDEF |
6c9c307c | 5833 | || (sym->domain () == STRUCT_DOMAIN |
5f9c5a63 | 5834 | && sym->type ()->code () == code)) |
eb3ff9a5 | 5835 | completion_list_add_symbol (tracker, sym, |
b5ec771e | 5836 | lookup_name, |
e11c72c7 GB |
5837 | text, word); |
5838 | } | |
5839 | } | |
5840 | } | |
5841 | ||
eb3ff9a5 PA |
5842 | void |
5843 | default_collect_symbol_completion_matches_break_on | |
b5ec771e PA |
5844 | (completion_tracker &tracker, complete_symbol_mode mode, |
5845 | symbol_name_match_type name_match_type, | |
eb3ff9a5 PA |
5846 | const char *text, const char *word, |
5847 | const char *break_on, enum type_code code) | |
c906108c | 5848 | { |
41d27058 JB |
5849 | /* Problem: All of the symbols have to be copied because readline |
5850 | frees them. I'm not going to worry about this; hopefully there | |
5851 | won't be that many. */ | |
5852 | ||
3977b71f | 5853 | const struct block *b; |
edb3359d | 5854 | const struct block *surrounding_static_block, *surrounding_global_block; |
c906108c | 5855 | /* The symbol we are completing on. Points in same buffer as text. */ |
6f937416 | 5856 | const char *sym_text; |
c906108c | 5857 | |
41d27058 | 5858 | /* Now look for the symbol we are supposed to complete on. */ |
c6756f62 PA |
5859 | if (mode == complete_symbol_mode::LINESPEC) |
5860 | sym_text = text; | |
5861 | else | |
01add95b SM |
5862 | { |
5863 | const char *p; | |
5864 | char quote_found; | |
5865 | const char *quote_pos = NULL; | |
c906108c | 5866 | |
01add95b SM |
5867 | /* First see if this is a quoted string. */ |
5868 | quote_found = '\0'; | |
5869 | for (p = text; *p != '\0'; ++p) | |
5870 | { | |
5871 | if (quote_found != '\0') | |
5872 | { | |
5873 | if (*p == quote_found) | |
5874 | /* Found close quote. */ | |
5875 | quote_found = '\0'; | |
5876 | else if (*p == '\\' && p[1] == quote_found) | |
5877 | /* A backslash followed by the quote character | |
5878 | doesn't end the string. */ | |
5879 | ++p; | |
5880 | } | |
5881 | else if (*p == '\'' || *p == '"') | |
5882 | { | |
5883 | quote_found = *p; | |
5884 | quote_pos = p; | |
5885 | } | |
5886 | } | |
5887 | if (quote_found == '\'') | |
5888 | /* A string within single quotes can be a symbol, so complete on it. */ | |
5889 | sym_text = quote_pos + 1; | |
5890 | else if (quote_found == '"') | |
5891 | /* A double-quoted string is never a symbol, nor does it make sense | |
5892 | to complete it any other way. */ | |
5893 | { | |
5894 | return; | |
5895 | } | |
5896 | else | |
5897 | { | |
5898 | /* It is not a quoted string. Break it based on the characters | |
5899 | which are in symbols. */ | |
5900 | while (p > text) | |
5901 | { | |
5902 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0' | |
5903 | || p[-1] == ':' || strchr (break_on, p[-1]) != NULL) | |
5904 | --p; | |
5905 | else | |
5906 | break; | |
5907 | } | |
5908 | sym_text = p; | |
5909 | } | |
5910 | } | |
c906108c | 5911 | |
1b026119 | 5912 | lookup_name_info lookup_name (sym_text, name_match_type, true); |
b5ec771e | 5913 | |
c906108c SS |
5914 | /* At this point scan through the misc symbol vectors and add each |
5915 | symbol you find to the list. Eventually we want to ignore | |
5916 | anything that isn't a text symbol (everything else will be | |
e11c72c7 | 5917 | handled by the psymtab code below). */ |
c906108c | 5918 | |
2f68a895 TT |
5919 | if (code == TYPE_CODE_UNDEF) |
5920 | { | |
2030c079 | 5921 | for (objfile *objfile : current_program_space->objfiles ()) |
2f68a895 | 5922 | { |
7932255d | 5923 | for (minimal_symbol *msymbol : objfile->msymbols ()) |
5325b9bf TT |
5924 | { |
5925 | QUIT; | |
9af17804 | 5926 | |
5325b9bf TT |
5927 | if (completion_skip_symbol (mode, msymbol)) |
5928 | continue; | |
f9d67a22 | 5929 | |
5325b9bf TT |
5930 | completion_list_add_msymbol (tracker, msymbol, lookup_name, |
5931 | sym_text, word); | |
eb3ff9a5 | 5932 | |
5325b9bf TT |
5933 | completion_list_objc_symbol (tracker, msymbol, lookup_name, |
5934 | sym_text, word); | |
5935 | } | |
2f68a895 TT |
5936 | } |
5937 | } | |
c906108c | 5938 | |
e11c72c7 | 5939 | /* Add completions for all currently loaded symbol tables. */ |
2030c079 | 5940 | for (objfile *objfile : current_program_space->objfiles ()) |
d8aeb77f | 5941 | { |
b669c953 | 5942 | for (compunit_symtab *cust : objfile->compunits ()) |
d8aeb77f TT |
5943 | add_symtab_completions (cust, tracker, mode, lookup_name, |
5944 | sym_text, word, code); | |
5945 | } | |
e11c72c7 | 5946 | |
14bc53a8 PA |
5947 | /* Look through the partial symtabs for all symbols which begin by |
5948 | matching SYM_TEXT. Expand all CUs that you find to the list. */ | |
5949 | expand_symtabs_matching (NULL, | |
b5ec771e PA |
5950 | lookup_name, |
5951 | NULL, | |
14bc53a8 PA |
5952 | [&] (compunit_symtab *symtab) /* expansion notify */ |
5953 | { | |
5954 | add_symtab_completions (symtab, | |
f9d67a22 | 5955 | tracker, mode, lookup_name, |
1b026119 | 5956 | sym_text, word, code); |
df35e626 | 5957 | return true; |
14bc53a8 | 5958 | }, |
03a8ea51 | 5959 | SEARCH_GLOBAL_BLOCK | SEARCH_STATIC_BLOCK, |
14bc53a8 | 5960 | ALL_DOMAIN); |
e11c72c7 | 5961 | |
c906108c | 5962 | /* Search upwards from currently selected frame (so that we can |
edb3359d DJ |
5963 | complete on local vars). Also catch fields of types defined in |
5964 | this places which match our text string. Only complete on types | |
c378eb4e | 5965 | visible from current context. */ |
edb3359d DJ |
5966 | |
5967 | b = get_selected_block (0); | |
d24e14a0 TT |
5968 | surrounding_static_block = b == nullptr ? nullptr : b->static_block (); |
5969 | surrounding_global_block = b == nullptr ? nullptr : b->global_block (); | |
edb3359d DJ |
5970 | if (surrounding_static_block != NULL) |
5971 | while (b != surrounding_static_block) | |
5972 | { | |
5973 | QUIT; | |
c906108c | 5974 | |
548a89df | 5975 | for (struct symbol *sym : block_iterator_range (b)) |
edb3359d | 5976 | { |
2f68a895 TT |
5977 | if (code == TYPE_CODE_UNDEF) |
5978 | { | |
b5ec771e | 5979 | completion_list_add_symbol (tracker, sym, lookup_name, |
1b026119 | 5980 | sym_text, word); |
b5ec771e | 5981 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 5982 | sym_text, word); |
2f68a895 | 5983 | } |
6c9c307c | 5984 | else if (sym->domain () == STRUCT_DOMAIN |
5f9c5a63 | 5985 | && sym->type ()->code () == code) |
b5ec771e | 5986 | completion_list_add_symbol (tracker, sym, lookup_name, |
1b026119 | 5987 | sym_text, word); |
edb3359d | 5988 | } |
c5aa993b | 5989 | |
edb3359d DJ |
5990 | /* Stop when we encounter an enclosing function. Do not stop for |
5991 | non-inlined functions - the locals of the enclosing function | |
5992 | are in scope for a nested function. */ | |
a4dfe747 | 5993 | if (b->function () != NULL && b->inlined_p ()) |
edb3359d | 5994 | break; |
f135fe72 | 5995 | b = b->superblock (); |
edb3359d | 5996 | } |
c906108c | 5997 | |
edb3359d | 5998 | /* Add fields from the file's types; symbols will be added below. */ |
c906108c | 5999 | |
2f68a895 TT |
6000 | if (code == TYPE_CODE_UNDEF) |
6001 | { | |
6002 | if (surrounding_static_block != NULL) | |
548a89df | 6003 | for (struct symbol *sym : block_iterator_range (surrounding_static_block)) |
b5ec771e | 6004 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 6005 | sym_text, word); |
edb3359d | 6006 | |
2f68a895 | 6007 | if (surrounding_global_block != NULL) |
548a89df | 6008 | for (struct symbol *sym : block_iterator_range (surrounding_global_block)) |
b5ec771e | 6009 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 6010 | sym_text, word); |
2f68a895 | 6011 | } |
c906108c | 6012 | |
2f68a895 TT |
6013 | /* Skip macros if we are completing a struct tag -- arguable but |
6014 | usually what is expected. */ | |
1ac14a04 | 6015 | if (current_language->macro_expansion () == macro_expansion_c |
2f68a895 | 6016 | && code == TYPE_CODE_UNDEF) |
9a044a89 | 6017 | { |
f6c2623e | 6018 | gdb::unique_xmalloc_ptr<struct macro_scope> scope; |
9a044a89 | 6019 | |
14bc53a8 PA |
6020 | /* This adds a macro's name to the current completion list. */ |
6021 | auto add_macro_name = [&] (const char *macro_name, | |
6022 | const macro_definition *, | |
6023 | macro_source_file *, | |
6024 | int) | |
6025 | { | |
1b026119 PA |
6026 | completion_list_add_name (tracker, language_c, macro_name, |
6027 | lookup_name, sym_text, word); | |
14bc53a8 PA |
6028 | }; |
6029 | ||
9a044a89 TT |
6030 | /* Add any macros visible in the default scope. Note that this |
6031 | may yield the occasional wrong result, because an expression | |
6032 | might be evaluated in a scope other than the default. For | |
6033 | example, if the user types "break file:line if <TAB>", the | |
6034 | resulting expression will be evaluated at "file:line" -- but | |
6035 | at there does not seem to be a way to detect this at | |
6036 | completion time. */ | |
6037 | scope = default_macro_scope (); | |
6038 | if (scope) | |
f6c2623e TT |
6039 | macro_for_each_in_scope (scope->file, scope->line, |
6040 | add_macro_name); | |
9a044a89 TT |
6041 | |
6042 | /* User-defined macros are always visible. */ | |
14bc53a8 | 6043 | macro_for_each (macro_user_macros, add_macro_name); |
9a044a89 | 6044 | } |
ef0b411a GB |
6045 | } |
6046 | ||
eb3ff9a5 PA |
6047 | /* Collect all symbols (regardless of class) which begin by matching |
6048 | TEXT. */ | |
41d27058 | 6049 | |
eb3ff9a5 PA |
6050 | void |
6051 | collect_symbol_completion_matches (completion_tracker &tracker, | |
c6756f62 | 6052 | complete_symbol_mode mode, |
b5ec771e | 6053 | symbol_name_match_type name_match_type, |
eb3ff9a5 | 6054 | const char *text, const char *word) |
41d27058 | 6055 | { |
7e56227d AB |
6056 | current_language->collect_symbol_completion_matches (tracker, mode, |
6057 | name_match_type, | |
6058 | text, word, | |
6059 | TYPE_CODE_UNDEF); | |
2f68a895 TT |
6060 | } |
6061 | ||
eb3ff9a5 PA |
6062 | /* Like collect_symbol_completion_matches, but only collect |
6063 | STRUCT_DOMAIN symbols whose type code is CODE. */ | |
2f68a895 | 6064 | |
eb3ff9a5 PA |
6065 | void |
6066 | collect_symbol_completion_matches_type (completion_tracker &tracker, | |
6067 | const char *text, const char *word, | |
6068 | enum type_code code) | |
2f68a895 | 6069 | { |
c6756f62 | 6070 | complete_symbol_mode mode = complete_symbol_mode::EXPRESSION; |
b5ec771e | 6071 | symbol_name_match_type name_match_type = symbol_name_match_type::EXPRESSION; |
c6756f62 | 6072 | |
2f68a895 TT |
6073 | gdb_assert (code == TYPE_CODE_UNION |
6074 | || code == TYPE_CODE_STRUCT | |
2f68a895 | 6075 | || code == TYPE_CODE_ENUM); |
7e56227d AB |
6076 | current_language->collect_symbol_completion_matches (tracker, mode, |
6077 | name_match_type, | |
6078 | text, word, code); | |
41d27058 JB |
6079 | } |
6080 | ||
eb3ff9a5 PA |
6081 | /* Like collect_symbol_completion_matches, but collects a list of |
6082 | symbols defined in all source files named SRCFILE. */ | |
c94fdfd0 | 6083 | |
eb3ff9a5 PA |
6084 | void |
6085 | collect_file_symbol_completion_matches (completion_tracker &tracker, | |
c6756f62 | 6086 | complete_symbol_mode mode, |
b5ec771e | 6087 | symbol_name_match_type name_match_type, |
eb3ff9a5 PA |
6088 | const char *text, const char *word, |
6089 | const char *srcfile) | |
c94fdfd0 | 6090 | { |
c94fdfd0 | 6091 | /* The symbol we are completing on. Points in same buffer as text. */ |
6f937416 | 6092 | const char *sym_text; |
c94fdfd0 EZ |
6093 | |
6094 | /* Now look for the symbol we are supposed to complete on. | |
6095 | FIXME: This should be language-specific. */ | |
c6756f62 PA |
6096 | if (mode == complete_symbol_mode::LINESPEC) |
6097 | sym_text = text; | |
6098 | else | |
01add95b SM |
6099 | { |
6100 | const char *p; | |
6101 | char quote_found; | |
6102 | const char *quote_pos = NULL; | |
c94fdfd0 | 6103 | |
01add95b SM |
6104 | /* First see if this is a quoted string. */ |
6105 | quote_found = '\0'; | |
6106 | for (p = text; *p != '\0'; ++p) | |
6107 | { | |
6108 | if (quote_found != '\0') | |
6109 | { | |
6110 | if (*p == quote_found) | |
6111 | /* Found close quote. */ | |
6112 | quote_found = '\0'; | |
6113 | else if (*p == '\\' && p[1] == quote_found) | |
6114 | /* A backslash followed by the quote character | |
6115 | doesn't end the string. */ | |
6116 | ++p; | |
6117 | } | |
6118 | else if (*p == '\'' || *p == '"') | |
6119 | { | |
6120 | quote_found = *p; | |
6121 | quote_pos = p; | |
6122 | } | |
6123 | } | |
6124 | if (quote_found == '\'') | |
6125 | /* A string within single quotes can be a symbol, so complete on it. */ | |
6126 | sym_text = quote_pos + 1; | |
6127 | else if (quote_found == '"') | |
6128 | /* A double-quoted string is never a symbol, nor does it make sense | |
6129 | to complete it any other way. */ | |
6130 | { | |
6131 | return; | |
6132 | } | |
6133 | else | |
6134 | { | |
6135 | /* Not a quoted string. */ | |
6136 | sym_text = language_search_unquoted_string (text, p); | |
6137 | } | |
6138 | } | |
c94fdfd0 | 6139 | |
1b026119 | 6140 | lookup_name_info lookup_name (sym_text, name_match_type, true); |
b5ec771e | 6141 | |
8f14146e PA |
6142 | /* Go through symtabs for SRCFILE and check the externs and statics |
6143 | for symbols which match. */ | |
6144 | iterate_over_symtabs (srcfile, [&] (symtab *s) | |
c94fdfd0 | 6145 | { |
c6159652 | 6146 | add_symtab_completions (s->compunit (), |
f9d67a22 | 6147 | tracker, mode, lookup_name, |
1b026119 | 6148 | sym_text, word, TYPE_CODE_UNDEF); |
8f14146e PA |
6149 | return false; |
6150 | }); | |
e27852be DE |
6151 | } |
6152 | ||
c94fdfd0 EZ |
6153 | /* A helper function for make_source_files_completion_list. It adds |
6154 | another file name to a list of possible completions, growing the | |
6155 | list as necessary. */ | |
6156 | ||
6157 | static void | |
6f937416 | 6158 | add_filename_to_list (const char *fname, const char *text, const char *word, |
eb3ff9a5 | 6159 | completion_list *list) |
c94fdfd0 | 6160 | { |
60a20c19 | 6161 | list->emplace_back (make_completion_match_str (fname, text, word)); |
c94fdfd0 EZ |
6162 | } |
6163 | ||
6164 | static int | |
6165 | not_interesting_fname (const char *fname) | |
6166 | { | |
6167 | static const char *illegal_aliens[] = { | |
6168 | "_globals_", /* inserted by coff_symtab_read */ | |
6169 | NULL | |
6170 | }; | |
6171 | int i; | |
6172 | ||
6173 | for (i = 0; illegal_aliens[i]; i++) | |
6174 | { | |
0ba1096a | 6175 | if (filename_cmp (fname, illegal_aliens[i]) == 0) |
c94fdfd0 EZ |
6176 | return 1; |
6177 | } | |
6178 | return 0; | |
6179 | } | |
6180 | ||
f4655dee | 6181 | /* An object of this type is passed as the callback argument to |
ccefe4c4 TT |
6182 | map_partial_symbol_filenames. */ |
6183 | struct add_partial_filename_data | |
6184 | { | |
9fdc877b | 6185 | struct filename_seen_cache *filename_seen_cache; |
6f937416 PA |
6186 | const char *text; |
6187 | const char *word; | |
ccefe4c4 | 6188 | int text_len; |
eb3ff9a5 | 6189 | completion_list *list; |
f4655dee TT |
6190 | |
6191 | void operator() (const char *filename, const char *fullname); | |
ccefe4c4 TT |
6192 | }; |
6193 | ||
6194 | /* A callback for map_partial_symbol_filenames. */ | |
eca864fe | 6195 | |
f4655dee TT |
6196 | void |
6197 | add_partial_filename_data::operator() (const char *filename, | |
6198 | const char *fullname) | |
ccefe4c4 | 6199 | { |
ccefe4c4 TT |
6200 | if (not_interesting_fname (filename)) |
6201 | return; | |
f4655dee TT |
6202 | if (!filename_seen_cache->seen (filename) |
6203 | && filename_ncmp (filename, text, text_len) == 0) | |
ccefe4c4 TT |
6204 | { |
6205 | /* This file matches for a completion; add it to the | |
6206 | current list of matches. */ | |
f4655dee | 6207 | add_filename_to_list (filename, text, word, list); |
ccefe4c4 TT |
6208 | } |
6209 | else | |
6210 | { | |
6211 | const char *base_name = lbasename (filename); | |
433759f7 | 6212 | |
ccefe4c4 | 6213 | if (base_name != filename |
f4655dee TT |
6214 | && !filename_seen_cache->seen (base_name) |
6215 | && filename_ncmp (base_name, text, text_len) == 0) | |
6216 | add_filename_to_list (base_name, text, word, list); | |
ccefe4c4 TT |
6217 | } |
6218 | } | |
6219 | ||
eb3ff9a5 | 6220 | /* Return a list of all source files whose names begin with matching |
49c4e619 | 6221 | TEXT. The file names are looked up in the symbol tables of this |
eb3ff9a5 | 6222 | program. */ |
c94fdfd0 | 6223 | |
eb3ff9a5 | 6224 | completion_list |
6f937416 | 6225 | make_source_files_completion_list (const char *text, const char *word) |
c94fdfd0 | 6226 | { |
c94fdfd0 | 6227 | size_t text_len = strlen (text); |
eb3ff9a5 | 6228 | completion_list list; |
31889e00 | 6229 | const char *base_name; |
ccefe4c4 | 6230 | struct add_partial_filename_data datum; |
c94fdfd0 | 6231 | |
c94fdfd0 EZ |
6232 | if (!have_full_symbols () && !have_partial_symbols ()) |
6233 | return list; | |
6234 | ||
bbf2f4df | 6235 | filename_seen_cache filenames_seen; |
9fdc877b | 6236 | |
2030c079 | 6237 | for (objfile *objfile : current_program_space->objfiles ()) |
c94fdfd0 | 6238 | { |
b669c953 | 6239 | for (compunit_symtab *cu : objfile->compunits ()) |
c94fdfd0 | 6240 | { |
102cc235 | 6241 | for (symtab *s : cu->filetabs ()) |
8b31193a TT |
6242 | { |
6243 | if (not_interesting_fname (s->filename)) | |
6244 | continue; | |
6245 | if (!filenames_seen.seen (s->filename) | |
6246 | && filename_ncmp (s->filename, text, text_len) == 0) | |
6247 | { | |
6248 | /* This file matches for a completion; add it to the current | |
6249 | list of matches. */ | |
6250 | add_filename_to_list (s->filename, text, word, &list); | |
6251 | } | |
6252 | else | |
6253 | { | |
6254 | /* NOTE: We allow the user to type a base name when the | |
6255 | debug info records leading directories, but not the other | |
6256 | way around. This is what subroutines of breakpoint | |
6257 | command do when they parse file names. */ | |
6258 | base_name = lbasename (s->filename); | |
6259 | if (base_name != s->filename | |
6260 | && !filenames_seen.seen (base_name) | |
6261 | && filename_ncmp (base_name, text, text_len) == 0) | |
6262 | add_filename_to_list (base_name, text, word, &list); | |
6263 | } | |
6264 | } | |
c94fdfd0 EZ |
6265 | } |
6266 | } | |
6267 | ||
bbf2f4df | 6268 | datum.filename_seen_cache = &filenames_seen; |
ccefe4c4 TT |
6269 | datum.text = text; |
6270 | datum.word = word; | |
6271 | datum.text_len = text_len; | |
6272 | datum.list = &list; | |
f4655dee | 6273 | map_symbol_filenames (datum, false /*need_fullname*/); |
9fdc877b | 6274 | |
c94fdfd0 EZ |
6275 | return list; |
6276 | } | |
c906108c | 6277 | \f |
51cc5b07 | 6278 | /* Track MAIN */ |
32ac0d11 TT |
6279 | |
6280 | /* Return the "main_info" object for the current program space. If | |
6281 | the object has not yet been created, create it and fill in some | |
6282 | default values. */ | |
6283 | ||
a49d37f3 SM |
6284 | static main_info * |
6285 | get_main_info (program_space *pspace) | |
32ac0d11 | 6286 | { |
a49d37f3 | 6287 | main_info *info = main_progspace_key.get (pspace); |
32ac0d11 TT |
6288 | |
6289 | if (info == NULL) | |
6290 | { | |
3d548a53 TT |
6291 | /* It may seem strange to store the main name in the progspace |
6292 | and also in whatever objfile happens to see a main name in | |
6293 | its debug info. The reason for this is mainly historical: | |
6294 | gdb returned "main" as the name even if no function named | |
6295 | "main" was defined the program; and this approach lets us | |
6296 | keep compatibility. */ | |
a49d37f3 | 6297 | info = main_progspace_key.emplace (pspace); |
32ac0d11 TT |
6298 | } |
6299 | ||
6300 | return info; | |
6301 | } | |
6302 | ||
3d548a53 | 6303 | static void |
a49d37f3 | 6304 | set_main_name (program_space *pspace, const char *name, enum language lang) |
51cc5b07 | 6305 | { |
a49d37f3 | 6306 | main_info *info = get_main_info (pspace); |
32ac0d11 | 6307 | |
25eb2931 | 6308 | if (!info->name_of_main.empty ()) |
51cc5b07 | 6309 | { |
25eb2931 | 6310 | info->name_of_main.clear (); |
32ac0d11 | 6311 | info->language_of_main = language_unknown; |
51cc5b07 AC |
6312 | } |
6313 | if (name != NULL) | |
6314 | { | |
25eb2931 | 6315 | info->name_of_main = name; |
32ac0d11 | 6316 | info->language_of_main = lang; |
51cc5b07 AC |
6317 | } |
6318 | } | |
6319 | ||
ea53e89f JB |
6320 | /* Deduce the name of the main procedure, and set NAME_OF_MAIN |
6321 | accordingly. */ | |
6322 | ||
6323 | static void | |
6324 | find_main_name (void) | |
6325 | { | |
cd6c7346 | 6326 | const char *new_main_name; |
a49d37f3 | 6327 | program_space *pspace = current_program_space; |
3d548a53 TT |
6328 | |
6329 | /* First check the objfiles to see whether a debuginfo reader has | |
6330 | picked up the appropriate main name. Historically the main name | |
6331 | was found in a more or less random way; this approach instead | |
6332 | relies on the order of objfile creation -- which still isn't | |
6333 | guaranteed to get the correct answer, but is just probably more | |
6334 | accurate. */ | |
2030c079 | 6335 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
6336 | { |
6337 | if (objfile->per_bfd->name_of_main != NULL) | |
6338 | { | |
a49d37f3 SM |
6339 | set_main_name (pspace, |
6340 | objfile->per_bfd->name_of_main, | |
aed57c53 TT |
6341 | objfile->per_bfd->language_of_main); |
6342 | return; | |
6343 | } | |
6344 | } | |
ea53e89f JB |
6345 | |
6346 | /* Try to see if the main procedure is in Ada. */ | |
6347 | /* FIXME: brobecker/2005-03-07: Another way of doing this would | |
6348 | be to add a new method in the language vector, and call this | |
6349 | method for each language until one of them returns a non-empty | |
6350 | name. This would allow us to remove this hard-coded call to | |
6351 | an Ada function. It is not clear that this is a better approach | |
6352 | at this point, because all methods need to be written in a way | |
c378eb4e | 6353 | such that false positives never be returned. For instance, it is |
ea53e89f JB |
6354 | important that a method does not return a wrong name for the main |
6355 | procedure if the main procedure is actually written in a different | |
6356 | language. It is easy to guaranty this with Ada, since we use a | |
6357 | special symbol generated only when the main in Ada to find the name | |
c378eb4e | 6358 | of the main procedure. It is difficult however to see how this can |
ea53e89f JB |
6359 | be guarantied for languages such as C, for instance. This suggests |
6360 | that order of call for these methods becomes important, which means | |
6361 | a more complicated approach. */ | |
6362 | new_main_name = ada_main_name (); | |
6363 | if (new_main_name != NULL) | |
9af17804 | 6364 | { |
a49d37f3 | 6365 | set_main_name (pspace, new_main_name, language_ada); |
ea53e89f JB |
6366 | return; |
6367 | } | |
6368 | ||
63778547 IB |
6369 | new_main_name = d_main_name (); |
6370 | if (new_main_name != NULL) | |
6371 | { | |
a49d37f3 | 6372 | set_main_name (pspace, new_main_name, language_d); |
63778547 IB |
6373 | return; |
6374 | } | |
6375 | ||
a766d390 DE |
6376 | new_main_name = go_main_name (); |
6377 | if (new_main_name != NULL) | |
6378 | { | |
a49d37f3 | 6379 | set_main_name (pspace, new_main_name, language_go); |
a766d390 DE |
6380 | return; |
6381 | } | |
6382 | ||
cd6c7346 PM |
6383 | new_main_name = pascal_main_name (); |
6384 | if (new_main_name != NULL) | |
9af17804 | 6385 | { |
a49d37f3 | 6386 | set_main_name (pspace, new_main_name, language_pascal); |
cd6c7346 PM |
6387 | return; |
6388 | } | |
6389 | ||
ea53e89f JB |
6390 | /* The languages above didn't identify the name of the main procedure. |
6391 | Fallback to "main". */ | |
d3214198 TV |
6392 | |
6393 | /* Try to find language for main in psymtabs. */ | |
531bd038 MM |
6394 | bool symbol_found_p = false; |
6395 | gdbarch_iterate_over_objfiles_in_search_order | |
99d9c3b9 | 6396 | (current_inferior ()->arch (), |
a49d37f3 | 6397 | [&symbol_found_p, pspace] (objfile *obj) |
531bd038 MM |
6398 | { |
6399 | language lang | |
6400 | = obj->lookup_global_symbol_language ("main", VAR_DOMAIN, | |
6401 | &symbol_found_p); | |
6402 | if (symbol_found_p) | |
6403 | { | |
a49d37f3 | 6404 | set_main_name (pspace, "main", lang); |
531bd038 MM |
6405 | return 1; |
6406 | } | |
6407 | ||
6408 | return 0; | |
6409 | }, nullptr); | |
6410 | ||
6411 | if (symbol_found_p) | |
6412 | return; | |
d3214198 | 6413 | |
a49d37f3 | 6414 | set_main_name (pspace, "main", language_unknown); |
ea53e89f JB |
6415 | } |
6416 | ||
cd215b2e TT |
6417 | /* See symtab.h. */ |
6418 | ||
6419 | const char * | |
6420 | main_name () | |
51cc5b07 | 6421 | { |
a49d37f3 | 6422 | main_info *info = get_main_info (current_program_space); |
32ac0d11 | 6423 | |
25eb2931 | 6424 | if (info->name_of_main.empty ()) |
ea53e89f JB |
6425 | find_main_name (); |
6426 | ||
25eb2931 | 6427 | return info->name_of_main.c_str (); |
51cc5b07 AC |
6428 | } |
6429 | ||
9e6c82ad TT |
6430 | /* Return the language of the main function. If it is not known, |
6431 | return language_unknown. */ | |
6432 | ||
6433 | enum language | |
6434 | main_language (void) | |
6435 | { | |
a49d37f3 | 6436 | main_info *info = get_main_info (current_program_space); |
32ac0d11 | 6437 | |
25eb2931 | 6438 | if (info->name_of_main.empty ()) |
32ac0d11 TT |
6439 | find_main_name (); |
6440 | ||
6441 | return info->language_of_main; | |
9e6c82ad TT |
6442 | } |
6443 | ||
a6c727b2 DJ |
6444 | /* Return 1 if the supplied producer string matches the ARM RealView |
6445 | compiler (armcc). */ | |
6446 | ||
ececd218 | 6447 | bool |
a6c727b2 DJ |
6448 | producer_is_realview (const char *producer) |
6449 | { | |
6450 | static const char *const arm_idents[] = { | |
6451 | "ARM C Compiler, ADS", | |
6452 | "Thumb C Compiler, ADS", | |
6453 | "ARM C++ Compiler, ADS", | |
6454 | "Thumb C++ Compiler, ADS", | |
6455 | "ARM/Thumb C/C++ Compiler, RVCT", | |
6456 | "ARM C/C++ Compiler, RVCT" | |
6457 | }; | |
a6c727b2 DJ |
6458 | |
6459 | if (producer == NULL) | |
ececd218 | 6460 | return false; |
a6c727b2 | 6461 | |
696d6f4d TT |
6462 | for (const char *ident : arm_idents) |
6463 | if (startswith (producer, ident)) | |
ececd218 | 6464 | return true; |
a6c727b2 | 6465 | |
ececd218 | 6466 | return false; |
a6c727b2 | 6467 | } |
ed0616c6 | 6468 | |
f1e6e072 TT |
6469 | \f |
6470 | ||
6471 | /* The next index to hand out in response to a registration request. */ | |
6472 | ||
6473 | static int next_aclass_value = LOC_FINAL_VALUE; | |
6474 | ||
6475 | /* The maximum number of "aclass" registrations we support. This is | |
6476 | constant for convenience. */ | |
658d5e0c | 6477 | #define MAX_SYMBOL_IMPLS (LOC_FINAL_VALUE + 11) |
f1e6e072 TT |
6478 | |
6479 | /* The objects representing the various "aclass" values. The elements | |
6480 | from 0 up to LOC_FINAL_VALUE-1 represent themselves, and subsequent | |
6481 | elements are those registered at gdb initialization time. */ | |
6482 | ||
6483 | static struct symbol_impl symbol_impl[MAX_SYMBOL_IMPLS]; | |
6484 | ||
6485 | /* The globally visible pointer. This is separate from 'symbol_impl' | |
6486 | so that it can be const. */ | |
6487 | ||
6bc3c5b4 | 6488 | gdb::array_view<const struct symbol_impl> symbol_impls (symbol_impl); |
f1e6e072 TT |
6489 | |
6490 | /* Make sure we saved enough room in struct symbol. */ | |
6491 | ||
69f6730d | 6492 | static_assert (MAX_SYMBOL_IMPLS <= (1 << SYMBOL_ACLASS_BITS)); |
f1e6e072 TT |
6493 | |
6494 | /* Register a computed symbol type. ACLASS must be LOC_COMPUTED. OPS | |
6495 | is the ops vector associated with this index. This returns the new | |
6496 | index, which should be used as the aclass_index field for symbols | |
6497 | of this type. */ | |
6498 | ||
6499 | int | |
6500 | register_symbol_computed_impl (enum address_class aclass, | |
6501 | const struct symbol_computed_ops *ops) | |
6502 | { | |
6503 | int result = next_aclass_value++; | |
6504 | ||
6505 | gdb_assert (aclass == LOC_COMPUTED); | |
6506 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6507 | symbol_impl[result].aclass = aclass; | |
6508 | symbol_impl[result].ops_computed = ops; | |
6509 | ||
24d6c2a0 TT |
6510 | /* Sanity check OPS. */ |
6511 | gdb_assert (ops != NULL); | |
6512 | gdb_assert (ops->tracepoint_var_ref != NULL); | |
6513 | gdb_assert (ops->describe_location != NULL); | |
0b31a4bc | 6514 | gdb_assert (ops->get_symbol_read_needs != NULL); |
24d6c2a0 TT |
6515 | gdb_assert (ops->read_variable != NULL); |
6516 | ||
f1e6e072 TT |
6517 | return result; |
6518 | } | |
6519 | ||
6520 | /* Register a function with frame base type. ACLASS must be LOC_BLOCK. | |
6521 | OPS is the ops vector associated with this index. This returns the | |
6522 | new index, which should be used as the aclass_index field for symbols | |
6523 | of this type. */ | |
6524 | ||
6525 | int | |
6526 | register_symbol_block_impl (enum address_class aclass, | |
6527 | const struct symbol_block_ops *ops) | |
6528 | { | |
6529 | int result = next_aclass_value++; | |
6530 | ||
6531 | gdb_assert (aclass == LOC_BLOCK); | |
6532 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6533 | symbol_impl[result].aclass = aclass; | |
6534 | symbol_impl[result].ops_block = ops; | |
6535 | ||
6536 | /* Sanity check OPS. */ | |
6537 | gdb_assert (ops != NULL); | |
36ed3d84 TT |
6538 | gdb_assert (ops->find_frame_base_location != nullptr |
6539 | || ops->get_block_value != nullptr); | |
f1e6e072 TT |
6540 | |
6541 | return result; | |
6542 | } | |
6543 | ||
6544 | /* Register a register symbol type. ACLASS must be LOC_REGISTER or | |
6545 | LOC_REGPARM_ADDR. OPS is the register ops vector associated with | |
6546 | this index. This returns the new index, which should be used as | |
6547 | the aclass_index field for symbols of this type. */ | |
6548 | ||
6549 | int | |
6550 | register_symbol_register_impl (enum address_class aclass, | |
6551 | const struct symbol_register_ops *ops) | |
6552 | { | |
6553 | int result = next_aclass_value++; | |
6554 | ||
6555 | gdb_assert (aclass == LOC_REGISTER || aclass == LOC_REGPARM_ADDR); | |
6556 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6557 | symbol_impl[result].aclass = aclass; | |
6558 | symbol_impl[result].ops_register = ops; | |
6559 | ||
6560 | return result; | |
6561 | } | |
6562 | ||
6563 | /* Initialize elements of 'symbol_impl' for the constants in enum | |
6564 | address_class. */ | |
6565 | ||
6566 | static void | |
6567 | initialize_ordinary_address_classes (void) | |
6568 | { | |
6569 | int i; | |
6570 | ||
6571 | for (i = 0; i < LOC_FINAL_VALUE; ++i) | |
aead7601 | 6572 | symbol_impl[i].aclass = (enum address_class) i; |
f1e6e072 TT |
6573 | } |
6574 | ||
6575 | \f | |
6576 | ||
08be3fe3 DE |
6577 | /* See symtab.h. */ |
6578 | ||
6579 | struct objfile * | |
e19b2d94 | 6580 | symbol::objfile () const |
08be3fe3 | 6581 | { |
e19b2d94 TT |
6582 | gdb_assert (is_objfile_owned ()); |
6583 | return owner.symtab->compunit ()->objfile (); | |
08be3fe3 DE |
6584 | } |
6585 | ||
6586 | /* See symtab.h. */ | |
6587 | ||
6588 | struct gdbarch * | |
bcd6845e | 6589 | symbol::arch () const |
08be3fe3 | 6590 | { |
bcd6845e TT |
6591 | if (!is_objfile_owned ()) |
6592 | return owner.arch; | |
6593 | return owner.symtab->compunit ()->objfile ()->arch (); | |
08be3fe3 DE |
6594 | } |
6595 | ||
6596 | /* See symtab.h. */ | |
6597 | ||
6598 | struct symtab * | |
4206d69e | 6599 | symbol::symtab () const |
08be3fe3 | 6600 | { |
4206d69e TT |
6601 | gdb_assert (is_objfile_owned ()); |
6602 | return owner.symtab; | |
08be3fe3 DE |
6603 | } |
6604 | ||
6605 | /* See symtab.h. */ | |
6606 | ||
6607 | void | |
4206d69e | 6608 | symbol::set_symtab (struct symtab *symtab) |
08be3fe3 | 6609 | { |
4206d69e TT |
6610 | gdb_assert (is_objfile_owned ()); |
6611 | owner.symtab = symtab; | |
08be3fe3 DE |
6612 | } |
6613 | ||
4b610737 TT |
6614 | /* See symtab.h. */ |
6615 | ||
6616 | CORE_ADDR | |
f9b96f67 | 6617 | symbol::get_maybe_copied_address () const |
4b610737 | 6618 | { |
f9b96f67 SM |
6619 | gdb_assert (this->maybe_copied); |
6620 | gdb_assert (this->aclass () == LOC_STATIC); | |
4b610737 | 6621 | |
f9b96f67 | 6622 | const char *linkage_name = this->linkage_name (); |
47ef0ac7 TT |
6623 | bound_minimal_symbol minsym = lookup_minimal_symbol_linkage (linkage_name, |
6624 | false); | |
6625 | if (minsym.minsym != nullptr) | |
6626 | return minsym.value_address (); | |
f9b96f67 | 6627 | return this->m_value.address; |
4b610737 TT |
6628 | } |
6629 | ||
6630 | /* See symtab.h. */ | |
6631 | ||
6632 | CORE_ADDR | |
23e6f781 | 6633 | minimal_symbol::get_maybe_copied_address (objfile *objf) const |
4b610737 | 6634 | { |
23e6f781 | 6635 | gdb_assert (this->maybe_copied (objf)); |
4b610737 TT |
6636 | gdb_assert ((objf->flags & OBJF_MAINLINE) == 0); |
6637 | ||
23e6f781 | 6638 | const char *linkage_name = this->linkage_name (); |
47ef0ac7 TT |
6639 | bound_minimal_symbol found = lookup_minimal_symbol_linkage (linkage_name, |
6640 | true); | |
6641 | if (found.minsym != nullptr) | |
6642 | return found.value_address (); | |
23e6f781 SM |
6643 | return (this->m_value.address |
6644 | + objf->section_offsets[this->section_index ()]); | |
4b610737 TT |
6645 | } |
6646 | ||
e623cf5d TT |
6647 | \f |
6648 | ||
165f8965 AB |
6649 | /* Hold the sub-commands of 'info module'. */ |
6650 | ||
6651 | static struct cmd_list_element *info_module_cmdlist = NULL; | |
6652 | ||
165f8965 AB |
6653 | /* See symtab.h. */ |
6654 | ||
6655 | std::vector<module_symbol_search> | |
6656 | search_module_symbols (const char *module_regexp, const char *regexp, | |
6657 | const char *type_regexp, search_domain kind) | |
6658 | { | |
6659 | std::vector<module_symbol_search> results; | |
6660 | ||
6661 | /* Search for all modules matching MODULE_REGEXP. */ | |
470c0b1c AB |
6662 | global_symbol_searcher spec1 (MODULES_DOMAIN, module_regexp); |
6663 | spec1.set_exclude_minsyms (true); | |
6664 | std::vector<symbol_search> modules = spec1.search (); | |
165f8965 AB |
6665 | |
6666 | /* Now search for all symbols of the required KIND matching the required | |
6667 | regular expressions. We figure out which ones are in which modules | |
6668 | below. */ | |
470c0b1c AB |
6669 | global_symbol_searcher spec2 (kind, regexp); |
6670 | spec2.set_symbol_type_regexp (type_regexp); | |
6671 | spec2.set_exclude_minsyms (true); | |
6672 | std::vector<symbol_search> symbols = spec2.search (); | |
165f8965 AB |
6673 | |
6674 | /* Now iterate over all MODULES, checking to see which items from | |
6675 | SYMBOLS are in each module. */ | |
6676 | for (const symbol_search &p : modules) | |
6677 | { | |
6678 | QUIT; | |
6679 | ||
6680 | /* This is a module. */ | |
6681 | gdb_assert (p.symbol != nullptr); | |
6682 | ||
987012b8 | 6683 | std::string prefix = p.symbol->print_name (); |
165f8965 AB |
6684 | prefix += "::"; |
6685 | ||
6686 | for (const symbol_search &q : symbols) | |
6687 | { | |
6688 | if (q.symbol == nullptr) | |
6689 | continue; | |
6690 | ||
987012b8 | 6691 | if (strncmp (q.symbol->print_name (), prefix.c_str (), |
165f8965 AB |
6692 | prefix.size ()) != 0) |
6693 | continue; | |
6694 | ||
6695 | results.push_back ({p, q}); | |
6696 | } | |
6697 | } | |
6698 | ||
6699 | return results; | |
6700 | } | |
6701 | ||
6702 | /* Implement the core of both 'info module functions' and 'info module | |
6703 | variables'. */ | |
6704 | ||
6705 | static void | |
6706 | info_module_subcommand (bool quiet, const char *module_regexp, | |
6707 | const char *regexp, const char *type_regexp, | |
6708 | search_domain kind) | |
6709 | { | |
6710 | /* Print a header line. Don't build the header line bit by bit as this | |
6711 | prevents internationalisation. */ | |
6712 | if (!quiet) | |
6713 | { | |
6714 | if (module_regexp == nullptr) | |
6715 | { | |
6716 | if (type_regexp == nullptr) | |
6717 | { | |
6718 | if (regexp == nullptr) | |
6cb06a8c TT |
6719 | gdb_printf ((kind == VARIABLES_DOMAIN |
6720 | ? _("All variables in all modules:") | |
6721 | : _("All functions in all modules:"))); | |
165f8965 | 6722 | else |
6cb06a8c | 6723 | gdb_printf |
165f8965 AB |
6724 | ((kind == VARIABLES_DOMAIN |
6725 | ? _("All variables matching regular expression" | |
6726 | " \"%s\" in all modules:") | |
6727 | : _("All functions matching regular expression" | |
6728 | " \"%s\" in all modules:")), | |
6729 | regexp); | |
6730 | } | |
6731 | else | |
6732 | { | |
6733 | if (regexp == nullptr) | |
6cb06a8c | 6734 | gdb_printf |
165f8965 AB |
6735 | ((kind == VARIABLES_DOMAIN |
6736 | ? _("All variables with type matching regular " | |
6737 | "expression \"%s\" in all modules:") | |
6738 | : _("All functions with type matching regular " | |
6739 | "expression \"%s\" in all modules:")), | |
6740 | type_regexp); | |
6741 | else | |
6cb06a8c | 6742 | gdb_printf |
165f8965 AB |
6743 | ((kind == VARIABLES_DOMAIN |
6744 | ? _("All variables matching regular expression " | |
6745 | "\"%s\",\n\twith type matching regular " | |
6746 | "expression \"%s\" in all modules:") | |
6747 | : _("All functions matching regular expression " | |
6748 | "\"%s\",\n\twith type matching regular " | |
6749 | "expression \"%s\" in all modules:")), | |
6750 | regexp, type_regexp); | |
6751 | } | |
6752 | } | |
6753 | else | |
6754 | { | |
6755 | if (type_regexp == nullptr) | |
6756 | { | |
6757 | if (regexp == nullptr) | |
6cb06a8c | 6758 | gdb_printf |
165f8965 AB |
6759 | ((kind == VARIABLES_DOMAIN |
6760 | ? _("All variables in all modules matching regular " | |
6761 | "expression \"%s\":") | |
6762 | : _("All functions in all modules matching regular " | |
6763 | "expression \"%s\":")), | |
6764 | module_regexp); | |
6765 | else | |
6cb06a8c | 6766 | gdb_printf |
165f8965 AB |
6767 | ((kind == VARIABLES_DOMAIN |
6768 | ? _("All variables matching regular expression " | |
6769 | "\"%s\",\n\tin all modules matching regular " | |
6770 | "expression \"%s\":") | |
6771 | : _("All functions matching regular expression " | |
6772 | "\"%s\",\n\tin all modules matching regular " | |
6773 | "expression \"%s\":")), | |
6774 | regexp, module_regexp); | |
6775 | } | |
6776 | else | |
6777 | { | |
6778 | if (regexp == nullptr) | |
6cb06a8c | 6779 | gdb_printf |
165f8965 AB |
6780 | ((kind == VARIABLES_DOMAIN |
6781 | ? _("All variables with type matching regular " | |
6782 | "expression \"%s\"\n\tin all modules matching " | |
6783 | "regular expression \"%s\":") | |
6784 | : _("All functions with type matching regular " | |
6785 | "expression \"%s\"\n\tin all modules matching " | |
6786 | "regular expression \"%s\":")), | |
6787 | type_regexp, module_regexp); | |
6788 | else | |
6cb06a8c | 6789 | gdb_printf |
165f8965 AB |
6790 | ((kind == VARIABLES_DOMAIN |
6791 | ? _("All variables matching regular expression " | |
6792 | "\"%s\",\n\twith type matching regular expression " | |
6793 | "\"%s\",\n\tin all modules matching regular " | |
6794 | "expression \"%s\":") | |
6795 | : _("All functions matching regular expression " | |
6796 | "\"%s\",\n\twith type matching regular expression " | |
6797 | "\"%s\",\n\tin all modules matching regular " | |
6798 | "expression \"%s\":")), | |
6799 | regexp, type_regexp, module_regexp); | |
6800 | } | |
6801 | } | |
6cb06a8c | 6802 | gdb_printf ("\n"); |
165f8965 AB |
6803 | } |
6804 | ||
6805 | /* Find all symbols of type KIND matching the given regular expressions | |
6806 | along with the symbols for the modules in which those symbols | |
6807 | reside. */ | |
6808 | std::vector<module_symbol_search> module_symbols | |
6809 | = search_module_symbols (module_regexp, regexp, type_regexp, kind); | |
6810 | ||
6811 | std::sort (module_symbols.begin (), module_symbols.end (), | |
6812 | [] (const module_symbol_search &a, const module_symbol_search &b) | |
6813 | { | |
6814 | if (a.first < b.first) | |
6815 | return true; | |
6816 | else if (a.first == b.first) | |
6817 | return a.second < b.second; | |
6818 | else | |
6819 | return false; | |
6820 | }); | |
6821 | ||
6822 | const char *last_filename = ""; | |
6823 | const symbol *last_module_symbol = nullptr; | |
6824 | for (const module_symbol_search &ms : module_symbols) | |
6825 | { | |
6826 | const symbol_search &p = ms.first; | |
6827 | const symbol_search &q = ms.second; | |
6828 | ||
6829 | gdb_assert (q.symbol != nullptr); | |
6830 | ||
6831 | if (last_module_symbol != p.symbol) | |
6832 | { | |
6cb06a8c TT |
6833 | gdb_printf ("\n"); |
6834 | gdb_printf (_("Module \"%s\":\n"), p.symbol->print_name ()); | |
165f8965 AB |
6835 | last_module_symbol = p.symbol; |
6836 | last_filename = ""; | |
6837 | } | |
6838 | ||
6839 | print_symbol_info (FUNCTIONS_DOMAIN, q.symbol, q.block, | |
6840 | last_filename); | |
6841 | last_filename | |
4206d69e | 6842 | = symtab_to_filename_for_display (q.symbol->symtab ()); |
165f8965 AB |
6843 | } |
6844 | } | |
6845 | ||
6846 | /* Hold the option values for the 'info module .....' sub-commands. */ | |
6847 | ||
6848 | struct info_modules_var_func_options | |
6849 | { | |
6850 | bool quiet = false; | |
e0700ba4 SM |
6851 | std::string type_regexp; |
6852 | std::string module_regexp; | |
165f8965 AB |
6853 | }; |
6854 | ||
6855 | /* The options used by 'info module variables' and 'info module functions' | |
6856 | commands. */ | |
6857 | ||
6858 | static const gdb::option::option_def info_modules_var_func_options_defs [] = { | |
6859 | gdb::option::boolean_option_def<info_modules_var_func_options> { | |
6860 | "q", | |
6861 | [] (info_modules_var_func_options *opt) { return &opt->quiet; }, | |
6862 | nullptr, /* show_cmd_cb */ | |
6863 | nullptr /* set_doc */ | |
6864 | }, | |
6865 | ||
6866 | gdb::option::string_option_def<info_modules_var_func_options> { | |
6867 | "t", | |
6868 | [] (info_modules_var_func_options *opt) { return &opt->type_regexp; }, | |
6869 | nullptr, /* show_cmd_cb */ | |
6870 | nullptr /* set_doc */ | |
6871 | }, | |
6872 | ||
6873 | gdb::option::string_option_def<info_modules_var_func_options> { | |
6874 | "m", | |
6875 | [] (info_modules_var_func_options *opt) { return &opt->module_regexp; }, | |
6876 | nullptr, /* show_cmd_cb */ | |
6877 | nullptr /* set_doc */ | |
6878 | } | |
6879 | }; | |
6880 | ||
6881 | /* Return the option group used by the 'info module ...' sub-commands. */ | |
6882 | ||
6883 | static inline gdb::option::option_def_group | |
6884 | make_info_modules_var_func_options_def_group | |
6885 | (info_modules_var_func_options *opts) | |
6886 | { | |
6887 | return {{info_modules_var_func_options_defs}, opts}; | |
6888 | } | |
6889 | ||
6890 | /* Implements the 'info module functions' command. */ | |
6891 | ||
6892 | static void | |
6893 | info_module_functions_command (const char *args, int from_tty) | |
6894 | { | |
6895 | info_modules_var_func_options opts; | |
6896 | auto grp = make_info_modules_var_func_options_def_group (&opts); | |
6897 | gdb::option::process_options | |
6898 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
6899 | if (args != nullptr && *args == '\0') | |
6900 | args = nullptr; | |
6901 | ||
e0700ba4 SM |
6902 | info_module_subcommand |
6903 | (opts.quiet, | |
6904 | opts.module_regexp.empty () ? nullptr : opts.module_regexp.c_str (), args, | |
6905 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
6906 | FUNCTIONS_DOMAIN); | |
165f8965 AB |
6907 | } |
6908 | ||
6909 | /* Implements the 'info module variables' command. */ | |
6910 | ||
6911 | static void | |
6912 | info_module_variables_command (const char *args, int from_tty) | |
6913 | { | |
6914 | info_modules_var_func_options opts; | |
6915 | auto grp = make_info_modules_var_func_options_def_group (&opts); | |
6916 | gdb::option::process_options | |
6917 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
6918 | if (args != nullptr && *args == '\0') | |
6919 | args = nullptr; | |
6920 | ||
e0700ba4 SM |
6921 | info_module_subcommand |
6922 | (opts.quiet, | |
6923 | opts.module_regexp.empty () ? nullptr : opts.module_regexp.c_str (), args, | |
6924 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
6925 | VARIABLES_DOMAIN); | |
165f8965 AB |
6926 | } |
6927 | ||
6928 | /* Command completer for 'info module ...' sub-commands. */ | |
6929 | ||
6930 | static void | |
6931 | info_module_var_func_command_completer (struct cmd_list_element *ignore, | |
6932 | completion_tracker &tracker, | |
6933 | const char *text, | |
6934 | const char * /* word */) | |
6935 | { | |
6936 | ||
6937 | const auto group = make_info_modules_var_func_options_def_group (nullptr); | |
6938 | if (gdb::option::complete_options | |
6939 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
6940 | return; | |
6941 | ||
6942 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
6943 | symbol_completer (ignore, tracker, text, word); | |
6944 | } | |
6945 | ||
6946 | \f | |
6947 | ||
6c265988 | 6948 | void _initialize_symtab (); |
c906108c | 6949 | void |
6c265988 | 6950 | _initialize_symtab () |
c906108c | 6951 | { |
60cfcb20 AB |
6952 | cmd_list_element *c; |
6953 | ||
f1e6e072 TT |
6954 | initialize_ordinary_address_classes (); |
6955 | ||
60cfcb20 AB |
6956 | c = add_info ("variables", info_variables_command, |
6957 | info_print_args_help (_("\ | |
12615cba | 6958 | All global and static variable names or those matching REGEXPs.\n\ |
4acfdd20 | 6959 | Usage: info variables [-q] [-n] [-t TYPEREGEXP] [NAMEREGEXP]\n\ |
12615cba | 6960 | Prints the global and static variables.\n"), |
4acfdd20 AB |
6961 | _("global and static variables"), |
6962 | true)); | |
095252be | 6963 | set_cmd_completer_handle_brkchars (c, info_vars_funcs_command_completer); |
c906108c | 6964 | |
60cfcb20 AB |
6965 | c = add_info ("functions", info_functions_command, |
6966 | info_print_args_help (_("\ | |
12615cba | 6967 | All function names or those matching REGEXPs.\n\ |
4acfdd20 | 6968 | Usage: info functions [-q] [-n] [-t TYPEREGEXP] [NAMEREGEXP]\n\ |
12615cba | 6969 | Prints the functions.\n"), |
4acfdd20 AB |
6970 | _("functions"), |
6971 | true)); | |
095252be | 6972 | set_cmd_completer_handle_brkchars (c, info_vars_funcs_command_completer); |
c906108c | 6973 | |
a8eab7c6 AB |
6974 | c = add_info ("types", info_types_command, _("\ |
6975 | All type names, or those matching REGEXP.\n\ | |
6976 | Usage: info types [-q] [REGEXP]\n\ | |
6977 | Print information about all types matching REGEXP, or all types if no\n\ | |
6978 | REGEXP is given. The optional flag -q disables printing of headers.")); | |
6979 | set_cmd_completer_handle_brkchars (c, info_types_command_completer); | |
c906108c | 6980 | |
0e350a05 AB |
6981 | const auto info_sources_opts |
6982 | = make_info_sources_options_def_group (nullptr); | |
28cd9371 PW |
6983 | |
6984 | static std::string info_sources_help | |
6985 | = gdb::option::build_help (_("\ | |
6986 | All source files in the program or those matching REGEXP.\n\ | |
6987 | Usage: info sources [OPTION]... [REGEXP]\n\ | |
6988 | By default, REGEXP is used to match anywhere in the filename.\n\ | |
6989 | \n\ | |
6990 | Options:\n\ | |
6991 | %OPTIONS%"), | |
6992 | info_sources_opts); | |
6993 | ||
6994 | c = add_info ("sources", info_sources_command, info_sources_help.c_str ()); | |
6995 | set_cmd_completer_handle_brkchars (c, info_sources_command_completer); | |
c906108c | 6996 | |
59c35742 AB |
6997 | c = add_info ("modules", info_modules_command, |
6998 | _("All module names, or those matching REGEXP.")); | |
6999 | set_cmd_completer_handle_brkchars (c, info_types_command_completer); | |
7000 | ||
03d83cd5 RB |
7001 | add_info ("main", info_main_command, |
7002 | _("Get main symbol to identify entry point into program.")); | |
7003 | ||
0743fc83 | 7004 | add_basic_prefix_cmd ("module", class_info, _("\ |
165f8965 | 7005 | Print information about modules."), |
2f822da5 | 7006 | &info_module_cmdlist, 0, &infolist); |
165f8965 AB |
7007 | |
7008 | c = add_cmd ("functions", class_info, info_module_functions_command, _("\ | |
7009 | Display functions arranged by modules.\n\ | |
7010 | Usage: info module functions [-q] [-m MODREGEXP] [-t TYPEREGEXP] [REGEXP]\n\ | |
7011 | Print a summary of all functions within each Fortran module, grouped by\n\ | |
7012 | module and file. For each function the line on which the function is\n\ | |
7013 | defined is given along with the type signature and name of the function.\n\ | |
7014 | \n\ | |
7015 | If REGEXP is provided then only functions whose name matches REGEXP are\n\ | |
7016 | listed. If MODREGEXP is provided then only functions in modules matching\n\ | |
7017 | MODREGEXP are listed. If TYPEREGEXP is given then only functions whose\n\ | |
7018 | type signature matches TYPEREGEXP are listed.\n\ | |
7019 | \n\ | |
7020 | The -q flag suppresses printing some header information."), | |
7021 | &info_module_cmdlist); | |
7022 | set_cmd_completer_handle_brkchars | |
7023 | (c, info_module_var_func_command_completer); | |
7024 | ||
7025 | c = add_cmd ("variables", class_info, info_module_variables_command, _("\ | |
7026 | Display variables arranged by modules.\n\ | |
7027 | Usage: info module variables [-q] [-m MODREGEXP] [-t TYPEREGEXP] [REGEXP]\n\ | |
7028 | Print a summary of all variables within each Fortran module, grouped by\n\ | |
7029 | module and file. For each variable the line on which the variable is\n\ | |
7030 | defined is given along with the type and name of the variable.\n\ | |
7031 | \n\ | |
7032 | If REGEXP is provided then only variables whose name matches REGEXP are\n\ | |
7033 | listed. If MODREGEXP is provided then only variables in modules matching\n\ | |
7034 | MODREGEXP are listed. If TYPEREGEXP is given then only variables whose\n\ | |
7035 | type matches TYPEREGEXP are listed.\n\ | |
7036 | \n\ | |
7037 | The -q flag suppresses printing some header information."), | |
7038 | &info_module_cmdlist); | |
7039 | set_cmd_completer_handle_brkchars | |
7040 | (c, info_module_var_func_command_completer); | |
7041 | ||
c906108c | 7042 | add_com ("rbreak", class_breakpoint, rbreak_command, |
1bedd215 | 7043 | _("Set a breakpoint for all functions matching REGEXP.")); |
c906108c | 7044 | |
717d2f5a | 7045 | add_setshow_enum_cmd ("multiple-symbols", no_class, |
dda83cd7 SM |
7046 | multiple_symbols_modes, &multiple_symbols_mode, |
7047 | _("\ | |
590042fc | 7048 | Set how the debugger handles ambiguities in expressions."), _("\ |
717d2f5a JB |
7049 | Show how the debugger handles ambiguities in expressions."), _("\ |
7050 | Valid values are \"ask\", \"all\", \"cancel\", and the default is \"all\"."), | |
dda83cd7 | 7051 | NULL, NULL, &setlist, &showlist); |
717d2f5a | 7052 | |
c011a4f4 DE |
7053 | add_setshow_boolean_cmd ("basenames-may-differ", class_obscure, |
7054 | &basenames_may_differ, _("\ | |
7055 | Set whether a source file may have multiple base names."), _("\ | |
7056 | Show whether a source file may have multiple base names."), _("\ | |
7057 | (A \"base name\" is the name of a file with the directory part removed.\n\ | |
7058 | Example: The base name of \"/home/user/hello.c\" is \"hello.c\".)\n\ | |
7059 | If set, GDB will canonicalize file names (e.g., expand symlinks)\n\ | |
7060 | before comparing them. Canonicalization is an expensive operation,\n\ | |
7061 | but it allows the same file be known by more than one base name.\n\ | |
7062 | If not set (the default), all source files are assumed to have just\n\ | |
7063 | one base name, and gdb will do file name comparisons more efficiently."), | |
7064 | NULL, NULL, | |
7065 | &setlist, &showlist); | |
7066 | ||
db0fec5c DE |
7067 | add_setshow_zuinteger_cmd ("symtab-create", no_class, &symtab_create_debug, |
7068 | _("Set debugging of symbol table creation."), | |
7069 | _("Show debugging of symbol table creation."), _("\ | |
7070 | When enabled (non-zero), debugging messages are printed when building\n\ | |
7071 | symbol tables. A value of 1 (one) normally provides enough information.\n\ | |
7072 | A value greater than 1 provides more verbose information."), | |
7073 | NULL, | |
7074 | NULL, | |
7075 | &setdebuglist, &showdebuglist); | |
45cfd468 | 7076 | |
cc485e62 DE |
7077 | add_setshow_zuinteger_cmd ("symbol-lookup", no_class, &symbol_lookup_debug, |
7078 | _("\ | |
7079 | Set debugging of symbol lookup."), _("\ | |
7080 | Show debugging of symbol lookup."), _("\ | |
7081 | When enabled (non-zero), symbol lookups are logged."), | |
7082 | NULL, NULL, | |
7083 | &setdebuglist, &showdebuglist); | |
7084 | ||
f57d2163 DE |
7085 | add_setshow_zuinteger_cmd ("symbol-cache-size", no_class, |
7086 | &new_symbol_cache_size, | |
7087 | _("Set the size of the symbol cache."), | |
7088 | _("Show the size of the symbol cache."), _("\ | |
7089 | The size of the symbol cache.\n\ | |
7090 | If zero then the symbol cache is disabled."), | |
7091 | set_symbol_cache_size_handler, NULL, | |
7092 | &maintenance_set_cmdlist, | |
7093 | &maintenance_show_cmdlist); | |
7094 | ||
6109f7a3 LS |
7095 | add_setshow_boolean_cmd ("ignore-prologue-end-flag", no_class, |
7096 | &ignore_prologue_end_flag, | |
7097 | _("Set if the PROLOGUE-END flag is ignored."), | |
7098 | _("Show if the PROLOGUE-END flag is ignored."), | |
7099 | _("\ | |
7100 | The PROLOGUE-END flag from the line-table entries is used to place \ | |
a383ee40 | 7101 | breakpoints past the prologue of functions. Disabling its use forces \ |
6109f7a3 LS |
7102 | the use of prologue scanners."), |
7103 | nullptr, nullptr, | |
7104 | &maintenance_set_cmdlist, | |
7105 | &maintenance_show_cmdlist); | |
7106 | ||
7107 | ||
f57d2163 DE |
7108 | add_cmd ("symbol-cache", class_maintenance, maintenance_print_symbol_cache, |
7109 | _("Dump the symbol cache for each program space."), | |
7110 | &maintenanceprintlist); | |
7111 | ||
7112 | add_cmd ("symbol-cache-statistics", class_maintenance, | |
7113 | maintenance_print_symbol_cache_statistics, | |
7114 | _("Print symbol cache statistics for each program space."), | |
7115 | &maintenanceprintlist); | |
7116 | ||
5e84b7ee SM |
7117 | cmd_list_element *maintenance_flush_symbol_cache_cmd |
7118 | = add_cmd ("symbol-cache", class_maintenance, | |
7119 | maintenance_flush_symbol_cache, | |
7120 | _("Flush the symbol cache for each program space."), | |
7121 | &maintenanceflushlist); | |
7122 | c = add_alias_cmd ("flush-symbol-cache", maintenance_flush_symbol_cache_cmd, | |
50a5f187 AB |
7123 | class_maintenance, 0, &maintenancelist); |
7124 | deprecate_cmd (c, "maintenancelist flush symbol-cache"); | |
f57d2163 | 7125 | |
c90e7d63 | 7126 | gdb::observers::new_objfile.attach (symtab_new_objfile_observer, "symtab"); |
74daa597 SM |
7127 | gdb::observers::all_objfiles_removed.attach (symtab_all_objfiles_removed, |
7128 | "symtab"); | |
c90e7d63 | 7129 | gdb::observers::free_objfile.attach (symtab_free_objfile_observer, "symtab"); |
c906108c | 7130 | } |