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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" |
268a13a5 | 69 | #include "gdbsupport/gdb_optional.h" |
bbf2f4df | 70 | #include "filename-seen-cache.h" |
46a62268 | 71 | #include "arch-utils.h" |
b9c04fb2 | 72 | #include <algorithm> |
7bb43059 | 73 | #include "gdbsupport/gdb_string_view.h" |
268a13a5 | 74 | #include "gdbsupport/pathstuff.h" |
1a6ff1a9 | 75 | #include "gdbsupport/common-utils.h" |
ccefe4c4 | 76 | |
ff6c39cf | 77 | /* Forward declarations for local functions. */ |
c906108c | 78 | |
0b39b52e | 79 | static void rbreak_command (const char *, int); |
c906108c | 80 | |
977a0c16 | 81 | static int find_line_common (const linetable *, int, int *, int); |
c906108c | 82 | |
d12307c1 PMR |
83 | static struct block_symbol |
84 | lookup_symbol_aux (const char *name, | |
de63c46b | 85 | symbol_name_match_type match_type, |
d12307c1 PMR |
86 | const struct block *block, |
87 | const domain_enum domain, | |
88 | enum language language, | |
89 | struct field_of_this_result *); | |
fba7f19c | 90 | |
e4051eeb | 91 | static |
d12307c1 | 92 | struct block_symbol lookup_local_symbol (const char *name, |
de63c46b | 93 | symbol_name_match_type match_type, |
d12307c1 PMR |
94 | const struct block *block, |
95 | const domain_enum domain, | |
96 | enum language language); | |
8155455b | 97 | |
d12307c1 | 98 | static struct block_symbol |
c32e6a04 CB |
99 | lookup_symbol_in_objfile (struct objfile *objfile, |
100 | enum block_enum block_index, | |
fe2a438d | 101 | const char *name, const domain_enum domain); |
c906108c | 102 | |
a0a031bc AB |
103 | static void set_main_name (const char *name, enum language lang); |
104 | ||
32ac0d11 TT |
105 | /* Type of the data stored on the program space. */ |
106 | ||
107 | struct main_info | |
108 | { | |
109 | /* Name of "main". */ | |
110 | ||
25eb2931 | 111 | std::string name_of_main; |
32ac0d11 TT |
112 | |
113 | /* Language of "main". */ | |
114 | ||
a32ad8c5 | 115 | enum language language_of_main = language_unknown; |
32ac0d11 TT |
116 | }; |
117 | ||
a32ad8c5 TT |
118 | /* Program space key for finding name and language of "main". */ |
119 | ||
08b8a139 | 120 | static const registry<program_space>::key<main_info> main_progspace_key; |
a32ad8c5 | 121 | |
f57d2163 DE |
122 | /* The default symbol cache size. |
123 | There is no extra cpu cost for large N (except when flushing the cache, | |
124 | which is rare). The value here is just a first attempt. A better default | |
125 | value may be higher or lower. A prime number can make up for a bad hash | |
126 | computation, so that's why the number is what it is. */ | |
127 | #define DEFAULT_SYMBOL_CACHE_SIZE 1021 | |
128 | ||
129 | /* The maximum symbol cache size. | |
130 | There's no method to the decision of what value to use here, other than | |
131 | there's no point in allowing a user typo to make gdb consume all memory. */ | |
132 | #define MAX_SYMBOL_CACHE_SIZE (1024*1024) | |
133 | ||
134 | /* symbol_cache_lookup returns this if a previous lookup failed to find the | |
135 | symbol in any objfile. */ | |
d12307c1 PMR |
136 | #define SYMBOL_LOOKUP_FAILED \ |
137 | ((struct block_symbol) {(struct symbol *) 1, NULL}) | |
138 | #define SYMBOL_LOOKUP_FAILED_P(SIB) (SIB.symbol == (struct symbol *) 1) | |
f57d2163 DE |
139 | |
140 | /* Recording lookups that don't find the symbol is just as important, if not | |
141 | more so, than recording found symbols. */ | |
142 | ||
143 | enum symbol_cache_slot_state | |
144 | { | |
145 | SYMBOL_SLOT_UNUSED, | |
146 | SYMBOL_SLOT_NOT_FOUND, | |
147 | SYMBOL_SLOT_FOUND | |
148 | }; | |
149 | ||
52059ffd TT |
150 | struct symbol_cache_slot |
151 | { | |
152 | enum symbol_cache_slot_state state; | |
153 | ||
154 | /* The objfile that was current when the symbol was looked up. | |
155 | This is only needed for global blocks, but for simplicity's sake | |
156 | we allocate the space for both. If data shows the extra space used | |
157 | for static blocks is a problem, we can split things up then. | |
158 | ||
159 | Global blocks need cache lookup to include the objfile context because | |
160 | we need to account for gdbarch_iterate_over_objfiles_in_search_order | |
161 | which can traverse objfiles in, effectively, any order, depending on | |
162 | the current objfile, thus affecting which symbol is found. Normally, | |
163 | only the current objfile is searched first, and then the rest are | |
164 | searched in recorded order; but putting cache lookup inside | |
165 | gdbarch_iterate_over_objfiles_in_search_order would be awkward. | |
166 | Instead we just make the current objfile part of the context of | |
167 | cache lookup. This means we can record the same symbol multiple times, | |
168 | each with a different "current objfile" that was in effect when the | |
169 | lookup was saved in the cache, but cache space is pretty cheap. */ | |
170 | const struct objfile *objfile_context; | |
171 | ||
172 | union | |
173 | { | |
d12307c1 | 174 | struct block_symbol found; |
52059ffd TT |
175 | struct |
176 | { | |
177 | char *name; | |
178 | domain_enum domain; | |
179 | } not_found; | |
180 | } value; | |
181 | }; | |
182 | ||
82f910ea PW |
183 | /* Clear out SLOT. */ |
184 | ||
185 | static void | |
186 | symbol_cache_clear_slot (struct symbol_cache_slot *slot) | |
187 | { | |
188 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
189 | xfree (slot->value.not_found.name); | |
190 | slot->state = SYMBOL_SLOT_UNUSED; | |
191 | } | |
192 | ||
f57d2163 DE |
193 | /* Symbols don't specify global vs static block. |
194 | So keep them in separate caches. */ | |
195 | ||
196 | struct block_symbol_cache | |
197 | { | |
198 | unsigned int hits; | |
199 | unsigned int misses; | |
200 | unsigned int collisions; | |
201 | ||
202 | /* SYMBOLS is a variable length array of this size. | |
203 | One can imagine that in general one cache (global/static) should be a | |
204 | fraction of the size of the other, but there's no data at the moment | |
205 | on which to decide. */ | |
206 | unsigned int size; | |
207 | ||
52059ffd | 208 | struct symbol_cache_slot symbols[1]; |
f57d2163 DE |
209 | }; |
210 | ||
82f910ea PW |
211 | /* Clear all slots of BSC and free BSC. */ |
212 | ||
213 | static void | |
214 | destroy_block_symbol_cache (struct block_symbol_cache *bsc) | |
215 | { | |
216 | if (bsc != nullptr) | |
217 | { | |
218 | for (unsigned int i = 0; i < bsc->size; i++) | |
219 | symbol_cache_clear_slot (&bsc->symbols[i]); | |
220 | xfree (bsc); | |
221 | } | |
222 | } | |
223 | ||
f57d2163 DE |
224 | /* The symbol cache. |
225 | ||
226 | Searching for symbols in the static and global blocks over multiple objfiles | |
227 | again and again can be slow, as can searching very big objfiles. This is a | |
228 | simple cache to improve symbol lookup performance, which is critical to | |
229 | overall gdb performance. | |
230 | ||
231 | Symbols are hashed on the name, its domain, and block. | |
232 | They are also hashed on their objfile for objfile-specific lookups. */ | |
233 | ||
234 | struct symbol_cache | |
235 | { | |
3017b94d TT |
236 | symbol_cache () = default; |
237 | ||
238 | ~symbol_cache () | |
239 | { | |
82f910ea PW |
240 | destroy_block_symbol_cache (global_symbols); |
241 | destroy_block_symbol_cache (static_symbols); | |
3017b94d TT |
242 | } |
243 | ||
244 | struct block_symbol_cache *global_symbols = nullptr; | |
245 | struct block_symbol_cache *static_symbols = nullptr; | |
f57d2163 DE |
246 | }; |
247 | ||
3017b94d TT |
248 | /* Program space key for finding its symbol cache. */ |
249 | ||
08b8a139 | 250 | static const registry<program_space>::key<symbol_cache> symbol_cache_key; |
3017b94d | 251 | |
45cfd468 | 252 | /* When non-zero, print debugging messages related to symtab creation. */ |
db0fec5c | 253 | unsigned int symtab_create_debug = 0; |
45cfd468 | 254 | |
cc485e62 DE |
255 | /* When non-zero, print debugging messages related to symbol lookup. */ |
256 | unsigned int symbol_lookup_debug = 0; | |
257 | ||
f57d2163 DE |
258 | /* The size of the cache is staged here. */ |
259 | static unsigned int new_symbol_cache_size = DEFAULT_SYMBOL_CACHE_SIZE; | |
260 | ||
261 | /* The current value of the symbol cache size. | |
262 | This is saved so that if the user enters a value too big we can restore | |
263 | the original value from here. */ | |
264 | static unsigned int symbol_cache_size = DEFAULT_SYMBOL_CACHE_SIZE; | |
265 | ||
491144b5 | 266 | /* True if a file may be known by two different basenames. |
c011a4f4 DE |
267 | This is the uncommon case, and significantly slows down gdb. |
268 | Default set to "off" to not slow down the common case. */ | |
491144b5 | 269 | bool basenames_may_differ = false; |
c011a4f4 | 270 | |
717d2f5a JB |
271 | /* Allow the user to configure the debugger behavior with respect |
272 | to multiple-choice menus when more than one symbol matches during | |
273 | a symbol lookup. */ | |
274 | ||
7fc830e2 MK |
275 | const char multiple_symbols_ask[] = "ask"; |
276 | const char multiple_symbols_all[] = "all"; | |
277 | const char multiple_symbols_cancel[] = "cancel"; | |
40478521 | 278 | static const char *const multiple_symbols_modes[] = |
717d2f5a JB |
279 | { |
280 | multiple_symbols_ask, | |
281 | multiple_symbols_all, | |
282 | multiple_symbols_cancel, | |
283 | NULL | |
284 | }; | |
285 | static const char *multiple_symbols_mode = multiple_symbols_all; | |
286 | ||
6109f7a3 LS |
287 | /* When TRUE, ignore the prologue-end flag in linetable_entry when searching |
288 | for the SAL past a function prologue. */ | |
289 | static bool ignore_prologue_end_flag = false; | |
290 | ||
717d2f5a JB |
291 | /* Read-only accessor to AUTO_SELECT_MODE. */ |
292 | ||
293 | const char * | |
294 | multiple_symbols_select_mode (void) | |
295 | { | |
296 | return multiple_symbols_mode; | |
297 | } | |
298 | ||
20c681d1 DE |
299 | /* Return the name of a domain_enum. */ |
300 | ||
301 | const char * | |
302 | domain_name (domain_enum e) | |
303 | { | |
304 | switch (e) | |
305 | { | |
306 | case UNDEF_DOMAIN: return "UNDEF_DOMAIN"; | |
307 | case VAR_DOMAIN: return "VAR_DOMAIN"; | |
308 | case STRUCT_DOMAIN: return "STRUCT_DOMAIN"; | |
540feddf | 309 | case MODULE_DOMAIN: return "MODULE_DOMAIN"; |
20c681d1 DE |
310 | case LABEL_DOMAIN: return "LABEL_DOMAIN"; |
311 | case COMMON_BLOCK_DOMAIN: return "COMMON_BLOCK_DOMAIN"; | |
312 | default: gdb_assert_not_reached ("bad domain_enum"); | |
313 | } | |
314 | } | |
315 | ||
316 | /* Return the name of a search_domain . */ | |
317 | ||
318 | const char * | |
319 | search_domain_name (enum search_domain e) | |
320 | { | |
321 | switch (e) | |
322 | { | |
323 | case VARIABLES_DOMAIN: return "VARIABLES_DOMAIN"; | |
324 | case FUNCTIONS_DOMAIN: return "FUNCTIONS_DOMAIN"; | |
325 | case TYPES_DOMAIN: return "TYPES_DOMAIN"; | |
59c35742 | 326 | case MODULES_DOMAIN: return "MODULES_DOMAIN"; |
20c681d1 DE |
327 | case ALL_DOMAIN: return "ALL_DOMAIN"; |
328 | default: gdb_assert_not_reached ("bad search_domain"); | |
329 | } | |
330 | } | |
331 | ||
43f3e411 | 332 | /* See symtab.h. */ |
db0fec5c | 333 | |
1acc9dca TT |
334 | CORE_ADDR |
335 | linetable_entry::pc (const struct objfile *objfile) const | |
336 | { | |
48e0f38c | 337 | return CORE_ADDR (m_pc) + objfile->text_section_offset (); |
1acc9dca TT |
338 | } |
339 | ||
340 | /* See symtab.h. */ | |
341 | ||
b625c770 SM |
342 | call_site * |
343 | compunit_symtab::find_call_site (CORE_ADDR pc) const | |
344 | { | |
345 | if (m_call_site_htab == nullptr) | |
346 | return nullptr; | |
347 | ||
d401e7bf | 348 | CORE_ADDR delta = this->objfile ()->text_section_offset (); |
1e73d09f | 349 | unrelocated_addr unrelocated_pc = (unrelocated_addr) (pc - delta); |
b0b8879e SM |
350 | |
351 | struct call_site call_site_local (unrelocated_pc, nullptr, nullptr); | |
0dd8295d TV |
352 | void **slot |
353 | = htab_find_slot (m_call_site_htab, &call_site_local, NO_INSERT); | |
9df25c34 TT |
354 | if (slot != nullptr) |
355 | return (call_site *) *slot; | |
356 | ||
357 | /* See if the arch knows another PC we should try. On some | |
358 | platforms, GCC emits a DWARF call site that is offset from the | |
359 | actual return location. */ | |
360 | struct gdbarch *arch = objfile ()->arch (); | |
361 | CORE_ADDR new_pc = gdbarch_update_call_site_pc (arch, pc); | |
362 | if (pc == new_pc) | |
363 | return nullptr; | |
364 | ||
1e73d09f TT |
365 | unrelocated_pc = (unrelocated_addr) (new_pc - delta); |
366 | call_site new_call_site_local (unrelocated_pc, nullptr, nullptr); | |
9df25c34 | 367 | slot = htab_find_slot (m_call_site_htab, &new_call_site_local, NO_INSERT); |
b625c770 SM |
368 | if (slot == nullptr) |
369 | return nullptr; | |
370 | ||
371 | return (call_site *) *slot; | |
372 | } | |
373 | ||
374 | /* See symtab.h. */ | |
375 | ||
376 | void | |
377 | compunit_symtab::set_call_site_htab (htab_t call_site_htab) | |
378 | { | |
379 | gdb_assert (m_call_site_htab == nullptr); | |
380 | m_call_site_htab = call_site_htab; | |
381 | } | |
382 | ||
383 | /* See symtab.h. */ | |
384 | ||
36664835 SM |
385 | void |
386 | compunit_symtab::set_primary_filetab (symtab *primary_filetab) | |
387 | { | |
388 | symtab *prev_filetab = nullptr; | |
389 | ||
390 | /* Move PRIMARY_FILETAB to the head of the filetab list. */ | |
102cc235 | 391 | for (symtab *filetab : this->filetabs ()) |
36664835 SM |
392 | { |
393 | if (filetab == primary_filetab) | |
394 | { | |
395 | if (prev_filetab != nullptr) | |
396 | { | |
397 | prev_filetab->next = primary_filetab->next; | |
102cc235 SM |
398 | primary_filetab->next = m_filetabs; |
399 | m_filetabs = primary_filetab; | |
36664835 SM |
400 | } |
401 | ||
402 | break; | |
403 | } | |
404 | ||
405 | prev_filetab = filetab; | |
406 | } | |
407 | ||
102cc235 | 408 | gdb_assert (primary_filetab == m_filetabs); |
36664835 SM |
409 | } |
410 | ||
411 | /* See symtab.h. */ | |
412 | ||
43f3e411 | 413 | struct symtab * |
0b17a4f7 | 414 | compunit_symtab::primary_filetab () const |
db0fec5c | 415 | { |
102cc235 | 416 | gdb_assert (m_filetabs != nullptr); |
db0fec5c | 417 | |
43f3e411 | 418 | /* The primary file symtab is the first one in the list. */ |
102cc235 | 419 | return m_filetabs; |
43f3e411 DE |
420 | } |
421 | ||
422 | /* See symtab.h. */ | |
423 | ||
424 | enum language | |
425d5e76 | 425 | compunit_symtab::language () const |
43f3e411 | 426 | { |
425d5e76 | 427 | struct symtab *symtab = primary_filetab (); |
43f3e411 | 428 | |
425d5e76 TT |
429 | /* The language of the compunit symtab is the language of its |
430 | primary source file. */ | |
1ee2e9f9 | 431 | return symtab->language (); |
db0fec5c DE |
432 | } |
433 | ||
4aeddc50 SM |
434 | /* The relocated address of the minimal symbol, using the section |
435 | offsets from OBJFILE. */ | |
436 | ||
437 | CORE_ADDR | |
438 | minimal_symbol::value_address (objfile *objfile) const | |
439 | { | |
62669649 | 440 | if (this->maybe_copied (objfile)) |
4aeddc50 SM |
441 | return get_msymbol_address (objfile, this); |
442 | else | |
93d50cd8 | 443 | return (CORE_ADDR (this->unrelocated_address ()) |
4aeddc50 SM |
444 | + objfile->section_offsets[this->section_index ()]); |
445 | } | |
446 | ||
1ed9f74e PW |
447 | /* See symtab.h. */ |
448 | ||
449 | bool | |
450 | minimal_symbol::data_p () const | |
451 | { | |
60f62e2b SM |
452 | return m_type == mst_data |
453 | || m_type == mst_bss | |
454 | || m_type == mst_abs | |
455 | || m_type == mst_file_data | |
456 | || m_type == mst_file_bss; | |
1ed9f74e PW |
457 | } |
458 | ||
459 | /* See symtab.h. */ | |
460 | ||
461 | bool | |
462 | minimal_symbol::text_p () const | |
463 | { | |
60f62e2b SM |
464 | return m_type == mst_text |
465 | || m_type == mst_text_gnu_ifunc | |
466 | || m_type == mst_data_gnu_ifunc | |
467 | || m_type == mst_slot_got_plt | |
468 | || m_type == mst_solib_trampoline | |
469 | || m_type == mst_file_text; | |
1ed9f74e PW |
470 | } |
471 | ||
62669649 KB |
472 | /* See symtab.h. */ |
473 | ||
474 | bool | |
475 | minimal_symbol::maybe_copied (objfile *objfile) const | |
476 | { | |
477 | return (objfile->object_format_has_copy_relocs | |
478 | && (objfile->flags & OBJF_MAINLINE) == 0 | |
479 | && (m_type == mst_data || m_type == mst_bss)); | |
480 | } | |
481 | ||
4aac40c8 TT |
482 | /* See whether FILENAME matches SEARCH_NAME using the rule that we |
483 | advertise to the user. (The manual's description of linespecs | |
af529f8f JK |
484 | describes what we advertise). Returns true if they match, false |
485 | otherwise. */ | |
4aac40c8 | 486 | |
ececd218 | 487 | bool |
b57a636e | 488 | compare_filenames_for_search (const char *filename, const char *search_name) |
4aac40c8 TT |
489 | { |
490 | int len = strlen (filename); | |
b57a636e | 491 | size_t search_len = strlen (search_name); |
4aac40c8 TT |
492 | |
493 | if (len < search_len) | |
ececd218 | 494 | return false; |
4aac40c8 TT |
495 | |
496 | /* The tail of FILENAME must match. */ | |
497 | if (FILENAME_CMP (filename + len - search_len, search_name) != 0) | |
ececd218 | 498 | return false; |
4aac40c8 TT |
499 | |
500 | /* Either the names must completely match, or the character | |
501 | preceding the trailing SEARCH_NAME segment of FILENAME must be a | |
d84fca2c JK |
502 | directory separator. |
503 | ||
af529f8f JK |
504 | The check !IS_ABSOLUTE_PATH ensures SEARCH_NAME "/dir/file.c" |
505 | cannot match FILENAME "/path//dir/file.c" - as user has requested | |
506 | absolute path. The sama applies for "c:\file.c" possibly | |
507 | incorrectly hypothetically matching "d:\dir\c:\file.c". | |
508 | ||
d84fca2c JK |
509 | The HAS_DRIVE_SPEC purpose is to make FILENAME "c:file.c" |
510 | compatible with SEARCH_NAME "file.c". In such case a compiler had | |
511 | to put the "c:file.c" name into debug info. Such compatibility | |
512 | works only on GDB built for DOS host. */ | |
4aac40c8 | 513 | return (len == search_len |
af529f8f JK |
514 | || (!IS_ABSOLUTE_PATH (search_name) |
515 | && IS_DIR_SEPARATOR (filename[len - search_len - 1])) | |
4aac40c8 TT |
516 | || (HAS_DRIVE_SPEC (filename) |
517 | && STRIP_DRIVE_SPEC (filename) == &filename[len - search_len])); | |
518 | } | |
519 | ||
cce0e923 DE |
520 | /* Same as compare_filenames_for_search, but for glob-style patterns. |
521 | Heads up on the order of the arguments. They match the order of | |
522 | compare_filenames_for_search, but it's the opposite of the order of | |
523 | arguments to gdb_filename_fnmatch. */ | |
524 | ||
ececd218 | 525 | bool |
cce0e923 DE |
526 | compare_glob_filenames_for_search (const char *filename, |
527 | const char *search_name) | |
528 | { | |
529 | /* We rely on the property of glob-style patterns with FNM_FILE_NAME that | |
530 | all /s have to be explicitly specified. */ | |
531 | int file_path_elements = count_path_elements (filename); | |
532 | int search_path_elements = count_path_elements (search_name); | |
533 | ||
534 | if (search_path_elements > file_path_elements) | |
ececd218 | 535 | return false; |
cce0e923 DE |
536 | |
537 | if (IS_ABSOLUTE_PATH (search_name)) | |
538 | { | |
539 | return (search_path_elements == file_path_elements | |
540 | && gdb_filename_fnmatch (search_name, filename, | |
541 | FNM_FILE_NAME | FNM_NOESCAPE) == 0); | |
542 | } | |
543 | ||
544 | { | |
545 | const char *file_to_compare | |
546 | = strip_leading_path_elements (filename, | |
547 | file_path_elements - search_path_elements); | |
548 | ||
549 | return gdb_filename_fnmatch (search_name, file_to_compare, | |
550 | FNM_FILE_NAME | FNM_NOESCAPE) == 0; | |
551 | } | |
552 | } | |
553 | ||
f8eba3c6 TT |
554 | /* Check for a symtab of a specific name by searching some symtabs. |
555 | This is a helper function for callbacks of iterate_over_symtabs. | |
c906108c | 556 | |
b2d23133 DE |
557 | If NAME is not absolute, then REAL_PATH is NULL |
558 | If NAME is absolute, then REAL_PATH is the gdb_realpath form of NAME. | |
559 | ||
14bc53a8 PA |
560 | The return value, NAME, REAL_PATH and CALLBACK are identical to the |
561 | `map_symtabs_matching_filename' method of quick_symbol_functions. | |
f8eba3c6 | 562 | |
43f3e411 DE |
563 | FIRST and AFTER_LAST indicate the range of compunit symtabs to search. |
564 | Each symtab within the specified compunit symtab is also searched. | |
565 | AFTER_LAST is one past the last compunit symtab to search; NULL means to | |
f8eba3c6 TT |
566 | search until the end of the list. */ |
567 | ||
14bc53a8 | 568 | bool |
f8eba3c6 | 569 | iterate_over_some_symtabs (const char *name, |
f8eba3c6 | 570 | const char *real_path, |
43f3e411 | 571 | struct compunit_symtab *first, |
14bc53a8 PA |
572 | struct compunit_symtab *after_last, |
573 | gdb::function_view<bool (symtab *)> callback) | |
c906108c | 574 | { |
43f3e411 | 575 | struct compunit_symtab *cust; |
c011a4f4 | 576 | const char* base_name = lbasename (name); |
1f84b619 | 577 | |
43f3e411 | 578 | for (cust = first; cust != NULL && cust != after_last; cust = cust->next) |
f079a2e5 | 579 | { |
7023b8d8 TV |
580 | /* Skip included compunits. */ |
581 | if (cust->user != nullptr) | |
582 | continue; | |
583 | ||
102cc235 | 584 | for (symtab *s : cust->filetabs ()) |
a94e8645 | 585 | { |
43f3e411 DE |
586 | if (compare_filenames_for_search (s->filename, name)) |
587 | { | |
14bc53a8 PA |
588 | if (callback (s)) |
589 | return true; | |
43f3e411 DE |
590 | continue; |
591 | } | |
a94e8645 | 592 | |
43f3e411 DE |
593 | /* Before we invoke realpath, which can get expensive when many |
594 | files are involved, do a quick comparison of the basenames. */ | |
595 | if (! basenames_may_differ | |
596 | && FILENAME_CMP (base_name, lbasename (s->filename)) != 0) | |
597 | continue; | |
a94e8645 | 598 | |
43f3e411 | 599 | if (compare_filenames_for_search (symtab_to_fullname (s), name)) |
a94e8645 | 600 | { |
14bc53a8 PA |
601 | if (callback (s)) |
602 | return true; | |
a94e8645 DE |
603 | continue; |
604 | } | |
43f3e411 DE |
605 | |
606 | /* If the user gave us an absolute path, try to find the file in | |
607 | this symtab and use its absolute path. */ | |
608 | if (real_path != NULL) | |
609 | { | |
610 | const char *fullname = symtab_to_fullname (s); | |
611 | ||
612 | gdb_assert (IS_ABSOLUTE_PATH (real_path)); | |
613 | gdb_assert (IS_ABSOLUTE_PATH (name)); | |
7e785608 TV |
614 | gdb::unique_xmalloc_ptr<char> fullname_real_path |
615 | = gdb_realpath (fullname); | |
616 | fullname = fullname_real_path.get (); | |
43f3e411 DE |
617 | if (FILENAME_CMP (real_path, fullname) == 0) |
618 | { | |
14bc53a8 PA |
619 | if (callback (s)) |
620 | return true; | |
43f3e411 DE |
621 | continue; |
622 | } | |
623 | } | |
a94e8645 | 624 | } |
f8eba3c6 | 625 | } |
58d370e0 | 626 | |
14bc53a8 | 627 | return false; |
f8eba3c6 TT |
628 | } |
629 | ||
630 | /* Check for a symtab of a specific name; first in symtabs, then in | |
631 | psymtabs. *If* there is no '/' in the name, a match after a '/' | |
632 | in the symtab filename will also work. | |
633 | ||
14bc53a8 PA |
634 | Calls CALLBACK with each symtab that is found. If CALLBACK returns |
635 | true, the search stops. */ | |
f8eba3c6 TT |
636 | |
637 | void | |
638 | iterate_over_symtabs (const char *name, | |
14bc53a8 | 639 | gdb::function_view<bool (symtab *)> callback) |
f8eba3c6 | 640 | { |
14bc53a8 | 641 | gdb::unique_xmalloc_ptr<char> real_path; |
f8eba3c6 TT |
642 | |
643 | /* Here we are interested in canonicalizing an absolute path, not | |
644 | absolutizing a relative path. */ | |
645 | if (IS_ABSOLUTE_PATH (name)) | |
646 | { | |
14278e1f | 647 | real_path = gdb_realpath (name); |
14bc53a8 | 648 | gdb_assert (IS_ABSOLUTE_PATH (real_path.get ())); |
f8eba3c6 TT |
649 | } |
650 | ||
2030c079 | 651 | for (objfile *objfile : current_program_space->objfiles ()) |
14bc53a8 PA |
652 | { |
653 | if (iterate_over_some_symtabs (name, real_path.get (), | |
654 | objfile->compunit_symtabs, NULL, | |
655 | callback)) | |
f8eba3c6 | 656 | return; |
14bc53a8 | 657 | } |
f8eba3c6 | 658 | |
c906108c SS |
659 | /* Same search rules as above apply here, but now we look thru the |
660 | psymtabs. */ | |
661 | ||
2030c079 | 662 | for (objfile *objfile : current_program_space->objfiles ()) |
14bc53a8 | 663 | { |
4d080b46 TT |
664 | if (objfile->map_symtabs_matching_filename (name, real_path.get (), |
665 | callback)) | |
f8eba3c6 | 666 | return; |
14bc53a8 | 667 | } |
c906108c | 668 | } |
f8eba3c6 TT |
669 | |
670 | /* A wrapper for iterate_over_symtabs that returns the first matching | |
671 | symtab, or NULL. */ | |
672 | ||
673 | struct symtab * | |
674 | lookup_symtab (const char *name) | |
675 | { | |
676 | struct symtab *result = NULL; | |
677 | ||
14bc53a8 PA |
678 | iterate_over_symtabs (name, [&] (symtab *symtab) |
679 | { | |
680 | result = symtab; | |
681 | return true; | |
682 | }); | |
683 | ||
f8eba3c6 TT |
684 | return result; |
685 | } | |
686 | ||
c906108c SS |
687 | \f |
688 | /* Mangle a GDB method stub type. This actually reassembles the pieces of the | |
689 | full method name, which consist of the class name (from T), the unadorned | |
690 | method name from METHOD_ID, and the signature for the specific overload, | |
c378eb4e | 691 | specified by SIGNATURE_ID. Note that this function is g++ specific. */ |
c906108c SS |
692 | |
693 | char * | |
fba45db2 | 694 | gdb_mangle_name (struct type *type, int method_id, int signature_id) |
c906108c SS |
695 | { |
696 | int mangled_name_len; | |
697 | char *mangled_name; | |
698 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
699 | struct fn_field *method = &f[signature_id]; | |
0d5cff50 | 700 | const char *field_name = TYPE_FN_FIELDLIST_NAME (type, method_id); |
1d06ead6 | 701 | const char *physname = TYPE_FN_FIELD_PHYSNAME (f, signature_id); |
7d93a1e0 | 702 | const char *newname = type->name (); |
c906108c SS |
703 | |
704 | /* Does the form of physname indicate that it is the full mangled name | |
705 | of a constructor (not just the args)? */ | |
706 | int is_full_physname_constructor; | |
707 | ||
708 | int is_constructor; | |
015a42b4 | 709 | int is_destructor = is_destructor_name (physname); |
c906108c | 710 | /* Need a new type prefix. */ |
e6a959d6 PA |
711 | const char *const_prefix = method->is_const ? "C" : ""; |
712 | const char *volatile_prefix = method->is_volatile ? "V" : ""; | |
c906108c SS |
713 | char buf[20]; |
714 | int len = (newname == NULL ? 0 : strlen (newname)); | |
715 | ||
43630227 PS |
716 | /* Nothing to do if physname already contains a fully mangled v3 abi name |
717 | or an operator name. */ | |
718 | if ((physname[0] == '_' && physname[1] == 'Z') | |
719 | || is_operator_name (field_name)) | |
235d1e03 EZ |
720 | return xstrdup (physname); |
721 | ||
015a42b4 | 722 | is_full_physname_constructor = is_constructor_name (physname); |
c906108c | 723 | |
3e43a32a MS |
724 | is_constructor = is_full_physname_constructor |
725 | || (newname && strcmp (field_name, newname) == 0); | |
c906108c SS |
726 | |
727 | if (!is_destructor) | |
61012eef | 728 | is_destructor = (startswith (physname, "__dt")); |
c906108c SS |
729 | |
730 | if (is_destructor || is_full_physname_constructor) | |
731 | { | |
c5aa993b JM |
732 | mangled_name = (char *) xmalloc (strlen (physname) + 1); |
733 | strcpy (mangled_name, physname); | |
c906108c SS |
734 | return mangled_name; |
735 | } | |
736 | ||
737 | if (len == 0) | |
738 | { | |
8c042590 | 739 | xsnprintf (buf, sizeof (buf), "__%s%s", const_prefix, volatile_prefix); |
c906108c SS |
740 | } |
741 | else if (physname[0] == 't' || physname[0] == 'Q') | |
742 | { | |
743 | /* The physname for template and qualified methods already includes | |
dda83cd7 | 744 | the class name. */ |
8c042590 | 745 | xsnprintf (buf, sizeof (buf), "__%s%s", const_prefix, volatile_prefix); |
c906108c SS |
746 | newname = NULL; |
747 | len = 0; | |
748 | } | |
749 | else | |
750 | { | |
8c042590 PM |
751 | xsnprintf (buf, sizeof (buf), "__%s%s%d", const_prefix, |
752 | volatile_prefix, len); | |
c906108c SS |
753 | } |
754 | mangled_name_len = ((is_constructor ? 0 : strlen (field_name)) | |
235d1e03 | 755 | + strlen (buf) + len + strlen (physname) + 1); |
c906108c | 756 | |
433759f7 MS |
757 | mangled_name = (char *) xmalloc (mangled_name_len); |
758 | if (is_constructor) | |
759 | mangled_name[0] = '\0'; | |
760 | else | |
761 | strcpy (mangled_name, field_name); | |
762 | ||
c906108c SS |
763 | strcat (mangled_name, buf); |
764 | /* If the class doesn't have a name, i.e. newname NULL, then we just | |
765 | mangle it using 0 for the length of the class. Thus it gets mangled | |
c378eb4e | 766 | as something starting with `::' rather than `classname::'. */ |
c906108c SS |
767 | if (newname != NULL) |
768 | strcat (mangled_name, newname); | |
769 | ||
770 | strcat (mangled_name, physname); | |
771 | return (mangled_name); | |
772 | } | |
12af6855 | 773 | |
ff985671 | 774 | /* See symtab.h. */ |
eca864fe | 775 | |
b250c185 | 776 | void |
ff985671 TT |
777 | general_symbol_info::set_demangled_name (const char *name, |
778 | struct obstack *obstack) | |
b250c185 | 779 | { |
ff985671 | 780 | if (language () == language_ada) |
f85f34ed TT |
781 | { |
782 | if (name == NULL) | |
783 | { | |
ff985671 TT |
784 | ada_mangled = 0; |
785 | language_specific.obstack = obstack; | |
f85f34ed TT |
786 | } |
787 | else | |
788 | { | |
ff985671 TT |
789 | ada_mangled = 1; |
790 | language_specific.demangled_name = name; | |
f85f34ed TT |
791 | } |
792 | } | |
29df156d | 793 | else |
ff985671 | 794 | language_specific.demangled_name = name; |
b250c185 SW |
795 | } |
796 | ||
12af6855 | 797 | \f |
89aad1f9 | 798 | /* Initialize the language dependent portion of a symbol |
c378eb4e | 799 | depending upon the language for the symbol. */ |
eca864fe | 800 | |
89aad1f9 | 801 | void |
d3ecddab CB |
802 | general_symbol_info::set_language (enum language language, |
803 | struct obstack *obstack) | |
89aad1f9 | 804 | { |
d3ecddab | 805 | m_language = language; |
c1b5c1eb CB |
806 | if (language == language_cplus |
807 | || language == language_d | |
808 | || language == language_go | |
809 | || language == language_objc | |
810 | || language == language_fortran) | |
89aad1f9 | 811 | { |
ff985671 | 812 | set_demangled_name (NULL, obstack); |
f85f34ed | 813 | } |
c1b5c1eb | 814 | else if (language == language_ada) |
f85f34ed | 815 | { |
d3ecddab CB |
816 | gdb_assert (ada_mangled == 0); |
817 | language_specific.obstack = obstack; | |
89aad1f9 | 818 | } |
89aad1f9 EZ |
819 | else |
820 | { | |
d3ecddab | 821 | memset (&language_specific, 0, sizeof (language_specific)); |
89aad1f9 EZ |
822 | } |
823 | } | |
824 | ||
2de7ced7 DJ |
825 | /* Functions to initialize a symbol's mangled name. */ |
826 | ||
04a679b8 TT |
827 | /* Objects of this type are stored in the demangled name hash table. */ |
828 | struct demangled_name_entry | |
829 | { | |
3a494279 CB |
830 | demangled_name_entry (gdb::string_view mangled_name) |
831 | : mangled (mangled_name) {} | |
832 | ||
7bb43059 | 833 | gdb::string_view mangled; |
403772ef | 834 | enum language language; |
5396ae17 | 835 | gdb::unique_xmalloc_ptr<char> demangled; |
04a679b8 TT |
836 | }; |
837 | ||
838 | /* Hash function for the demangled name hash. */ | |
eca864fe | 839 | |
04a679b8 TT |
840 | static hashval_t |
841 | hash_demangled_name_entry (const void *data) | |
842 | { | |
19ba03f4 SM |
843 | const struct demangled_name_entry *e |
844 | = (const struct demangled_name_entry *) data; | |
433759f7 | 845 | |
1a8605a8 | 846 | return gdb::string_view_hash () (e->mangled); |
04a679b8 TT |
847 | } |
848 | ||
849 | /* Equality function for the demangled name hash. */ | |
eca864fe | 850 | |
04a679b8 TT |
851 | static int |
852 | eq_demangled_name_entry (const void *a, const void *b) | |
853 | { | |
19ba03f4 SM |
854 | const struct demangled_name_entry *da |
855 | = (const struct demangled_name_entry *) a; | |
856 | const struct demangled_name_entry *db | |
857 | = (const struct demangled_name_entry *) b; | |
433759f7 | 858 | |
7bb43059 | 859 | return da->mangled == db->mangled; |
04a679b8 TT |
860 | } |
861 | ||
3a494279 CB |
862 | static void |
863 | free_demangled_name_entry (void *data) | |
864 | { | |
865 | struct demangled_name_entry *e | |
866 | = (struct demangled_name_entry *) data; | |
867 | ||
868 | e->~demangled_name_entry(); | |
869 | } | |
870 | ||
2de7ced7 DJ |
871 | /* Create the hash table used for demangled names. Each hash entry is |
872 | a pair of strings; one for the mangled name and one for the demangled | |
873 | name. The entry is hashed via just the mangled name. */ | |
874 | ||
875 | static void | |
0f14768a | 876 | create_demangled_names_hash (struct objfile_per_bfd_storage *per_bfd) |
2de7ced7 DJ |
877 | { |
878 | /* Choose 256 as the starting size of the hash table, somewhat arbitrarily. | |
9af17804 | 879 | The hash table code will round this up to the next prime number. |
2de7ced7 | 880 | Choosing a much larger table size wastes memory, and saves only about |
f8bab2d6 CB |
881 | 1% in symbol reading. However, if the minsym count is already |
882 | initialized (e.g. because symbol name setting was deferred to | |
883 | a background thread) we can initialize the hashtable with a count | |
884 | based on that, because we will almost certainly have at least that | |
885 | many entries. If we have a nonzero number but less than 256, | |
886 | we still stay with 256 to have some space for psymbols, etc. */ | |
887 | ||
888 | /* htab will expand the table when it is 3/4th full, so we account for that | |
889 | here. +2 to round up. */ | |
890 | int minsym_based_count = (per_bfd->minimal_symbol_count + 2) / 3 * 4; | |
891 | int count = std::max (per_bfd->minimal_symbol_count, minsym_based_count); | |
2de7ced7 | 892 | |
db92718b | 893 | per_bfd->demangled_names_hash.reset (htab_create_alloc |
f8bab2d6 | 894 | (count, hash_demangled_name_entry, eq_demangled_name_entry, |
3a494279 | 895 | free_demangled_name_entry, xcalloc, xfree)); |
2de7ced7 | 896 | } |
12af6855 | 897 | |
d55c9a68 | 898 | /* See symtab.h */ |
12af6855 | 899 | |
3456e70c | 900 | gdb::unique_xmalloc_ptr<char> |
2de7ced7 DJ |
901 | symbol_find_demangled_name (struct general_symbol_info *gsymbol, |
902 | const char *mangled) | |
12af6855 | 903 | { |
3456e70c | 904 | gdb::unique_xmalloc_ptr<char> demangled; |
8b302db8 | 905 | int i; |
12af6855 | 906 | |
129bce36 | 907 | if (gsymbol->language () != language_unknown) |
1bae87b9 | 908 | { |
c1b5c1eb | 909 | const struct language_defn *lang = language_def (gsymbol->language ()); |
8b302db8 | 910 | |
6f827019 | 911 | lang->sniff_from_mangled_name (mangled, &demangled); |
8b302db8 | 912 | return demangled; |
6aecb9c2 | 913 | } |
8b302db8 TT |
914 | |
915 | for (i = language_unknown; i < nr_languages; ++i) | |
a766d390 | 916 | { |
8b302db8 TT |
917 | enum language l = (enum language) i; |
918 | const struct language_defn *lang = language_def (l); | |
919 | ||
6f827019 | 920 | if (lang->sniff_from_mangled_name (mangled, &demangled)) |
a766d390 | 921 | { |
c1b5c1eb | 922 | gsymbol->m_language = l; |
a766d390 DE |
923 | return demangled; |
924 | } | |
925 | } | |
926 | ||
2de7ced7 DJ |
927 | return NULL; |
928 | } | |
929 | ||
980cae7a | 930 | /* Set both the mangled and demangled (if any) names for GSYMBOL based |
04a679b8 TT |
931 | on LINKAGE_NAME and LEN. Ordinarily, NAME is copied onto the |
932 | objfile's obstack; but if COPY_NAME is 0 and if NAME is | |
933 | NUL-terminated, then this function assumes that NAME is already | |
934 | correctly saved (either permanently or with a lifetime tied to the | |
935 | objfile), and it will not be copied. | |
936 | ||
937 | The hash table corresponding to OBJFILE is used, and the memory | |
84a1243b | 938 | comes from the per-BFD storage_obstack. LINKAGE_NAME is copied, |
04a679b8 | 939 | so the pointer can be discarded after calling this function. */ |
2de7ced7 DJ |
940 | |
941 | void | |
4d4eaa30 CB |
942 | general_symbol_info::compute_and_set_names (gdb::string_view linkage_name, |
943 | bool copy_name, | |
944 | objfile_per_bfd_storage *per_bfd, | |
945 | gdb::optional<hashval_t> hash) | |
2de7ced7 | 946 | { |
04a679b8 | 947 | struct demangled_name_entry **slot; |
2de7ced7 | 948 | |
4d4eaa30 | 949 | if (language () == language_ada) |
b06ead72 JB |
950 | { |
951 | /* In Ada, we do the symbol lookups using the mangled name, so | |
dda83cd7 | 952 | we can save some space by not storing the demangled name. */ |
92174eea | 953 | if (!copy_name) |
4d4eaa30 | 954 | m_name = linkage_name.data (); |
04a679b8 | 955 | else |
869d8950 TT |
956 | m_name = obstack_strndup (&per_bfd->storage_obstack, |
957 | linkage_name.data (), | |
958 | linkage_name.length ()); | |
ff985671 | 959 | set_demangled_name (NULL, &per_bfd->storage_obstack); |
b06ead72 JB |
960 | |
961 | return; | |
962 | } | |
963 | ||
84a1243b | 964 | if (per_bfd->demangled_names_hash == NULL) |
0f14768a | 965 | create_demangled_names_hash (per_bfd); |
04a679b8 | 966 | |
31edb802 | 967 | struct demangled_name_entry entry (linkage_name); |
e76b2246 CB |
968 | if (!hash.has_value ()) |
969 | hash = hash_demangled_name_entry (&entry); | |
04a679b8 | 970 | slot = ((struct demangled_name_entry **) |
dda83cd7 | 971 | htab_find_slot_with_hash (per_bfd->demangled_names_hash.get (), |
e76b2246 | 972 | &entry, *hash, INSERT)); |
2de7ced7 | 973 | |
57d75002 CB |
974 | /* The const_cast is safe because the only reason it is already |
975 | initialized is if we purposefully set it from a background | |
976 | thread to avoid doing the work here. However, it is still | |
977 | allocated from the heap and needs to be freed by us, just | |
978 | like if we called symbol_find_demangled_name here. If this is | |
979 | nullptr, we call symbol_find_demangled_name below, but we put | |
980 | this smart pointer here to be sure that we don't leak this name. */ | |
981 | gdb::unique_xmalloc_ptr<char> demangled_name | |
982 | (const_cast<char *> (language_specific.demangled_name)); | |
983 | ||
2de7ced7 | 984 | /* If this name is not in the hash table, add it. */ |
a766d390 DE |
985 | if (*slot == NULL |
986 | /* A C version of the symbol may have already snuck into the table. | |
987 | This happens to, e.g., main.init (__go_init_main). Cope. */ | |
4d4eaa30 | 988 | || (language () == language_go && (*slot)->demangled == nullptr)) |
2de7ced7 | 989 | { |
0c921b21 | 990 | /* A 0-terminated copy of the linkage name. Callers must set COPY_NAME |
dda83cd7 SM |
991 | to true if the string might not be nullterminated. We have to make |
992 | this copy because demangling needs a nullterminated string. */ | |
31edb802 | 993 | gdb::string_view linkage_name_copy; |
0c921b21 CB |
994 | if (copy_name) |
995 | { | |
31edb802 CB |
996 | char *alloc_name = (char *) alloca (linkage_name.length () + 1); |
997 | memcpy (alloc_name, linkage_name.data (), linkage_name.length ()); | |
998 | alloc_name[linkage_name.length ()] = '\0'; | |
0c921b21 | 999 | |
31edb802 CB |
1000 | linkage_name_copy = gdb::string_view (alloc_name, |
1001 | linkage_name.length ()); | |
0c921b21 CB |
1002 | } |
1003 | else | |
1004 | linkage_name_copy = linkage_name; | |
1005 | ||
57d75002 | 1006 | if (demangled_name.get () == nullptr) |
3456e70c TT |
1007 | demangled_name |
1008 | = symbol_find_demangled_name (this, linkage_name_copy.data ()); | |
2de7ced7 | 1009 | |
04a679b8 | 1010 | /* Suppose we have demangled_name==NULL, copy_name==0, and |
9c37b5ae | 1011 | linkage_name_copy==linkage_name. In this case, we already have the |
04a679b8 TT |
1012 | mangled name saved, and we don't have a demangled name. So, |
1013 | you might think we could save a little space by not recording | |
1014 | this in the hash table at all. | |
5396ae17 | 1015 | |
04a679b8 TT |
1016 | It turns out that it is actually important to still save such |
1017 | an entry in the hash table, because storing this name gives | |
705b5767 | 1018 | us better bcache hit rates for partial symbols. */ |
0c921b21 | 1019 | if (!copy_name) |
04a679b8 | 1020 | { |
224c3ddb SM |
1021 | *slot |
1022 | = ((struct demangled_name_entry *) | |
1023 | obstack_alloc (&per_bfd->storage_obstack, | |
5396ae17 | 1024 | sizeof (demangled_name_entry))); |
31edb802 | 1025 | new (*slot) demangled_name_entry (linkage_name); |
04a679b8 TT |
1026 | } |
1027 | else | |
1028 | { | |
1029 | /* If we must copy the mangled name, put it directly after | |
5396ae17 | 1030 | the struct so we can have a single allocation. */ |
224c3ddb SM |
1031 | *slot |
1032 | = ((struct demangled_name_entry *) | |
1033 | obstack_alloc (&per_bfd->storage_obstack, | |
31edb802 CB |
1034 | sizeof (demangled_name_entry) |
1035 | + linkage_name.length () + 1)); | |
5396ae17 | 1036 | char *mangled_ptr = reinterpret_cast<char *> (*slot + 1); |
31edb802 CB |
1037 | memcpy (mangled_ptr, linkage_name.data (), linkage_name.length ()); |
1038 | mangled_ptr [linkage_name.length ()] = '\0'; | |
3a494279 | 1039 | new (*slot) demangled_name_entry |
31edb802 | 1040 | (gdb::string_view (mangled_ptr, linkage_name.length ())); |
04a679b8 | 1041 | } |
d55c9a68 | 1042 | (*slot)->demangled = std::move (demangled_name); |
4d4eaa30 | 1043 | (*slot)->language = language (); |
2de7ced7 | 1044 | } |
129bce36 | 1045 | else if (language () == language_unknown) |
4d4eaa30 | 1046 | m_language = (*slot)->language; |
2de7ced7 | 1047 | |
4d4eaa30 | 1048 | m_name = (*slot)->mangled.data (); |
ff985671 | 1049 | set_demangled_name ((*slot)->demangled.get (), &per_bfd->storage_obstack); |
2de7ced7 DJ |
1050 | } |
1051 | ||
c9d95fa3 | 1052 | /* See symtab.h. */ |
22abf04a | 1053 | |
0d5cff50 | 1054 | const char * |
c9d95fa3 | 1055 | general_symbol_info::natural_name () const |
22abf04a | 1056 | { |
c1b5c1eb | 1057 | switch (language ()) |
22abf04a | 1058 | { |
1f8173e6 | 1059 | case language_cplus: |
6aecb9c2 | 1060 | case language_d: |
a766d390 | 1061 | case language_go: |
1f8173e6 | 1062 | case language_objc: |
f55ee35c | 1063 | case language_fortran: |
8c87a452 | 1064 | case language_rust: |
7151c1af TT |
1065 | if (language_specific.demangled_name != nullptr) |
1066 | return language_specific.demangled_name; | |
1f8173e6 PH |
1067 | break; |
1068 | case language_ada: | |
c9d95fa3 | 1069 | return ada_decode_symbol (this); |
1f8173e6 PH |
1070 | default: |
1071 | break; | |
22abf04a | 1072 | } |
4d4eaa30 | 1073 | return linkage_name (); |
22abf04a DC |
1074 | } |
1075 | ||
c9d95fa3 | 1076 | /* See symtab.h. */ |
eca864fe | 1077 | |
0d5cff50 | 1078 | const char * |
c9d95fa3 | 1079 | general_symbol_info::demangled_name () const |
9cc0d196 | 1080 | { |
c6e5ee5e SDJ |
1081 | const char *dem_name = NULL; |
1082 | ||
c1b5c1eb | 1083 | switch (language ()) |
1f8173e6 PH |
1084 | { |
1085 | case language_cplus: | |
6aecb9c2 | 1086 | case language_d: |
a766d390 | 1087 | case language_go: |
1f8173e6 | 1088 | case language_objc: |
f55ee35c | 1089 | case language_fortran: |
8c87a452 | 1090 | case language_rust: |
7151c1af | 1091 | dem_name = language_specific.demangled_name; |
1f8173e6 PH |
1092 | break; |
1093 | case language_ada: | |
c9d95fa3 | 1094 | dem_name = ada_decode_symbol (this); |
1f8173e6 PH |
1095 | break; |
1096 | default: | |
1097 | break; | |
1098 | } | |
c6e5ee5e | 1099 | return dem_name; |
9cc0d196 | 1100 | } |
fe39c653 | 1101 | |
c9d95fa3 | 1102 | /* See symtab.h. */ |
eca864fe | 1103 | |
0d5cff50 | 1104 | const char * |
c9d95fa3 | 1105 | general_symbol_info::search_name () const |
fc062ac6 | 1106 | { |
c1b5c1eb | 1107 | if (language () == language_ada) |
4d4eaa30 | 1108 | return linkage_name (); |
1f8173e6 | 1109 | else |
c9d95fa3 | 1110 | return natural_name (); |
4725b721 | 1111 | } |
b5ec771e PA |
1112 | |
1113 | /* See symtab.h. */ | |
1114 | ||
ebbc3a7d AB |
1115 | struct obj_section * |
1116 | general_symbol_info::obj_section (const struct objfile *objfile) const | |
1117 | { | |
a52d653e | 1118 | if (section_index () >= 0) |
9ed8433a | 1119 | return &objfile->sections_start[section_index ()]; |
ebbc3a7d AB |
1120 | return nullptr; |
1121 | } | |
1122 | ||
1123 | /* See symtab.h. */ | |
1124 | ||
b5ec771e PA |
1125 | bool |
1126 | symbol_matches_search_name (const struct general_symbol_info *gsymbol, | |
1127 | const lookup_name_info &name) | |
1128 | { | |
1129 | symbol_name_matcher_ftype *name_match | |
c9debfb9 | 1130 | = language_def (gsymbol->language ())->get_symbol_name_matcher (name); |
c9d95fa3 | 1131 | return name_match (gsymbol->search_name (), name, NULL); |
b5ec771e PA |
1132 | } |
1133 | ||
c906108c SS |
1134 | \f |
1135 | ||
ececd218 | 1136 | /* Return true if the two sections are the same, or if they could |
94277a38 DJ |
1137 | plausibly be copies of each other, one in an original object |
1138 | file and another in a separated debug file. */ | |
1139 | ||
ececd218 | 1140 | bool |
714835d5 UW |
1141 | matching_obj_sections (struct obj_section *obj_first, |
1142 | struct obj_section *obj_second) | |
94277a38 | 1143 | { |
714835d5 UW |
1144 | asection *first = obj_first? obj_first->the_bfd_section : NULL; |
1145 | asection *second = obj_second? obj_second->the_bfd_section : NULL; | |
94277a38 DJ |
1146 | |
1147 | /* If they're the same section, then they match. */ | |
1148 | if (first == second) | |
ececd218 | 1149 | return true; |
94277a38 DJ |
1150 | |
1151 | /* If either is NULL, give up. */ | |
1152 | if (first == NULL || second == NULL) | |
ececd218 | 1153 | return false; |
94277a38 DJ |
1154 | |
1155 | /* This doesn't apply to absolute symbols. */ | |
1156 | if (first->owner == NULL || second->owner == NULL) | |
ececd218 | 1157 | return false; |
94277a38 DJ |
1158 | |
1159 | /* If they're in the same object file, they must be different sections. */ | |
1160 | if (first->owner == second->owner) | |
ececd218 | 1161 | return false; |
94277a38 DJ |
1162 | |
1163 | /* Check whether the two sections are potentially corresponding. They must | |
1164 | have the same size, address, and name. We can't compare section indexes, | |
1165 | which would be more reliable, because some sections may have been | |
1166 | stripped. */ | |
fd361982 | 1167 | if (bfd_section_size (first) != bfd_section_size (second)) |
ececd218 | 1168 | return false; |
94277a38 | 1169 | |
818f79f6 | 1170 | /* In-memory addresses may start at a different offset, relativize them. */ |
fd361982 AM |
1171 | if (bfd_section_vma (first) - bfd_get_start_address (first->owner) |
1172 | != bfd_section_vma (second) - bfd_get_start_address (second->owner)) | |
ececd218 | 1173 | return false; |
94277a38 | 1174 | |
fd361982 AM |
1175 | if (bfd_section_name (first) == NULL |
1176 | || bfd_section_name (second) == NULL | |
1177 | || strcmp (bfd_section_name (first), bfd_section_name (second)) != 0) | |
ececd218 | 1178 | return false; |
94277a38 DJ |
1179 | |
1180 | /* Otherwise check that they are in corresponding objfiles. */ | |
1181 | ||
9d7c67bf | 1182 | struct objfile *obj = NULL; |
2030c079 | 1183 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
1184 | if (objfile->obfd == first->owner) |
1185 | { | |
1186 | obj = objfile; | |
1187 | break; | |
1188 | } | |
94277a38 DJ |
1189 | gdb_assert (obj != NULL); |
1190 | ||
1191 | if (obj->separate_debug_objfile != NULL | |
1192 | && obj->separate_debug_objfile->obfd == second->owner) | |
ececd218 | 1193 | return true; |
94277a38 DJ |
1194 | if (obj->separate_debug_objfile_backlink != NULL |
1195 | && obj->separate_debug_objfile_backlink->obfd == second->owner) | |
ececd218 | 1196 | return true; |
94277a38 | 1197 | |
ececd218 | 1198 | return false; |
94277a38 | 1199 | } |
c906108c | 1200 | \f |
f57d2163 DE |
1201 | /* Hash function for the symbol cache. */ |
1202 | ||
1203 | static unsigned int | |
1204 | hash_symbol_entry (const struct objfile *objfile_context, | |
1205 | const char *name, domain_enum domain) | |
1206 | { | |
1207 | unsigned int hash = (uintptr_t) objfile_context; | |
1208 | ||
1209 | if (name != NULL) | |
1210 | hash += htab_hash_string (name); | |
1211 | ||
2c26b84f DE |
1212 | /* Because of symbol_matches_domain we need VAR_DOMAIN and STRUCT_DOMAIN |
1213 | to map to the same slot. */ | |
1214 | if (domain == STRUCT_DOMAIN) | |
1215 | hash += VAR_DOMAIN * 7; | |
1216 | else | |
1217 | hash += domain * 7; | |
f57d2163 DE |
1218 | |
1219 | return hash; | |
1220 | } | |
1221 | ||
1222 | /* Equality function for the symbol cache. */ | |
1223 | ||
1224 | static int | |
1225 | eq_symbol_entry (const struct symbol_cache_slot *slot, | |
1226 | const struct objfile *objfile_context, | |
1227 | const char *name, domain_enum domain) | |
1228 | { | |
1229 | const char *slot_name; | |
1230 | domain_enum slot_domain; | |
1231 | ||
1232 | if (slot->state == SYMBOL_SLOT_UNUSED) | |
1233 | return 0; | |
1234 | ||
1235 | if (slot->objfile_context != objfile_context) | |
1236 | return 0; | |
1237 | ||
1238 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
1239 | { | |
1240 | slot_name = slot->value.not_found.name; | |
1241 | slot_domain = slot->value.not_found.domain; | |
1242 | } | |
1243 | else | |
1244 | { | |
987012b8 | 1245 | slot_name = slot->value.found.symbol->search_name (); |
6c9c307c | 1246 | slot_domain = slot->value.found.symbol->domain (); |
f57d2163 DE |
1247 | } |
1248 | ||
1249 | /* NULL names match. */ | |
1250 | if (slot_name == NULL && name == NULL) | |
1251 | { | |
1252 | /* But there's no point in calling symbol_matches_domain in the | |
1253 | SYMBOL_SLOT_FOUND case. */ | |
1254 | if (slot_domain != domain) | |
1255 | return 0; | |
1256 | } | |
1257 | else if (slot_name != NULL && name != NULL) | |
1258 | { | |
b5ec771e PA |
1259 | /* It's important that we use the same comparison that was done |
1260 | the first time through. If the slot records a found symbol, | |
1261 | then this means using the symbol name comparison function of | |
987012b8 | 1262 | the symbol's language with symbol->search_name (). See |
b5ec771e PA |
1263 | dictionary.c. It also means using symbol_matches_domain for |
1264 | found symbols. See block.c. | |
f57d2163 DE |
1265 | |
1266 | If the slot records a not-found symbol, then require a precise match. | |
1267 | We could still be lax with whitespace like strcmp_iw though. */ | |
1268 | ||
1269 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
1270 | { | |
1271 | if (strcmp (slot_name, name) != 0) | |
1272 | return 0; | |
1273 | if (slot_domain != domain) | |
1274 | return 0; | |
1275 | } | |
1276 | else | |
1277 | { | |
d12307c1 | 1278 | struct symbol *sym = slot->value.found.symbol; |
b5ec771e | 1279 | lookup_name_info lookup_name (name, symbol_name_match_type::FULL); |
f57d2163 | 1280 | |
81e32b6a | 1281 | if (!symbol_matches_search_name (sym, lookup_name)) |
f57d2163 | 1282 | return 0; |
b5ec771e | 1283 | |
c1b5c1eb | 1284 | if (!symbol_matches_domain (sym->language (), slot_domain, domain)) |
f57d2163 DE |
1285 | return 0; |
1286 | } | |
1287 | } | |
1288 | else | |
1289 | { | |
1290 | /* Only one name is NULL. */ | |
1291 | return 0; | |
1292 | } | |
1293 | ||
1294 | return 1; | |
1295 | } | |
1296 | ||
1297 | /* Given a cache of size SIZE, return the size of the struct (with variable | |
1298 | length array) in bytes. */ | |
1299 | ||
1300 | static size_t | |
1301 | symbol_cache_byte_size (unsigned int size) | |
1302 | { | |
1303 | return (sizeof (struct block_symbol_cache) | |
1304 | + ((size - 1) * sizeof (struct symbol_cache_slot))); | |
1305 | } | |
1306 | ||
1307 | /* Resize CACHE. */ | |
1308 | ||
1309 | static void | |
1310 | resize_symbol_cache (struct symbol_cache *cache, unsigned int new_size) | |
1311 | { | |
1312 | /* If there's no change in size, don't do anything. | |
1313 | All caches have the same size, so we can just compare with the size | |
1314 | of the global symbols cache. */ | |
1315 | if ((cache->global_symbols != NULL | |
1316 | && cache->global_symbols->size == new_size) | |
1317 | || (cache->global_symbols == NULL | |
1318 | && new_size == 0)) | |
1319 | return; | |
1320 | ||
82f910ea PW |
1321 | destroy_block_symbol_cache (cache->global_symbols); |
1322 | destroy_block_symbol_cache (cache->static_symbols); | |
f57d2163 DE |
1323 | |
1324 | if (new_size == 0) | |
1325 | { | |
1326 | cache->global_symbols = NULL; | |
1327 | cache->static_symbols = NULL; | |
1328 | } | |
1329 | else | |
1330 | { | |
1331 | size_t total_size = symbol_cache_byte_size (new_size); | |
1332 | ||
224c3ddb SM |
1333 | cache->global_symbols |
1334 | = (struct block_symbol_cache *) xcalloc (1, total_size); | |
1335 | cache->static_symbols | |
1336 | = (struct block_symbol_cache *) xcalloc (1, total_size); | |
f57d2163 DE |
1337 | cache->global_symbols->size = new_size; |
1338 | cache->static_symbols->size = new_size; | |
1339 | } | |
1340 | } | |
1341 | ||
f57d2163 DE |
1342 | /* Return the symbol cache of PSPACE. |
1343 | Create one if it doesn't exist yet. */ | |
1344 | ||
1345 | static struct symbol_cache * | |
1346 | get_symbol_cache (struct program_space *pspace) | |
1347 | { | |
3017b94d | 1348 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 DE |
1349 | |
1350 | if (cache == NULL) | |
1351 | { | |
3017b94d TT |
1352 | cache = symbol_cache_key.emplace (pspace); |
1353 | resize_symbol_cache (cache, symbol_cache_size); | |
f57d2163 DE |
1354 | } |
1355 | ||
1356 | return cache; | |
1357 | } | |
1358 | ||
f57d2163 DE |
1359 | /* Set the size of the symbol cache in all program spaces. */ |
1360 | ||
1361 | static void | |
1362 | set_symbol_cache_size (unsigned int new_size) | |
1363 | { | |
94c93c35 | 1364 | for (struct program_space *pspace : program_spaces) |
f57d2163 | 1365 | { |
3017b94d | 1366 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 DE |
1367 | |
1368 | /* The pspace could have been created but not have a cache yet. */ | |
1369 | if (cache != NULL) | |
1370 | resize_symbol_cache (cache, new_size); | |
1371 | } | |
1372 | } | |
1373 | ||
1374 | /* Called when symbol-cache-size is set. */ | |
1375 | ||
1376 | static void | |
eb4c3f4a | 1377 | set_symbol_cache_size_handler (const char *args, int from_tty, |
f57d2163 DE |
1378 | struct cmd_list_element *c) |
1379 | { | |
1380 | if (new_symbol_cache_size > MAX_SYMBOL_CACHE_SIZE) | |
1381 | { | |
1382 | /* Restore the previous value. | |
1383 | This is the value the "show" command prints. */ | |
1384 | new_symbol_cache_size = symbol_cache_size; | |
1385 | ||
1386 | error (_("Symbol cache size is too large, max is %u."), | |
1387 | MAX_SYMBOL_CACHE_SIZE); | |
1388 | } | |
1389 | symbol_cache_size = new_symbol_cache_size; | |
1390 | ||
1391 | set_symbol_cache_size (symbol_cache_size); | |
1392 | } | |
1393 | ||
1394 | /* Lookup symbol NAME,DOMAIN in BLOCK in the symbol cache of PSPACE. | |
1395 | OBJFILE_CONTEXT is the current objfile, which may be NULL. | |
1396 | The result is the symbol if found, SYMBOL_LOOKUP_FAILED if a previous lookup | |
1397 | failed (and thus this one will too), or NULL if the symbol is not present | |
1398 | in the cache. | |
d0509ba4 CB |
1399 | *BSC_PTR and *SLOT_PTR are set to the cache and slot of the symbol, which |
1400 | can be used to save the result of a full lookup attempt. */ | |
f57d2163 | 1401 | |
d12307c1 | 1402 | static struct block_symbol |
f57d2163 | 1403 | symbol_cache_lookup (struct symbol_cache *cache, |
ddbcedf5 | 1404 | struct objfile *objfile_context, enum block_enum block, |
f57d2163 DE |
1405 | const char *name, domain_enum domain, |
1406 | struct block_symbol_cache **bsc_ptr, | |
1407 | struct symbol_cache_slot **slot_ptr) | |
1408 | { | |
1409 | struct block_symbol_cache *bsc; | |
1410 | unsigned int hash; | |
1411 | struct symbol_cache_slot *slot; | |
1412 | ||
1413 | if (block == GLOBAL_BLOCK) | |
1414 | bsc = cache->global_symbols; | |
1415 | else | |
1416 | bsc = cache->static_symbols; | |
1417 | if (bsc == NULL) | |
1418 | { | |
1419 | *bsc_ptr = NULL; | |
1420 | *slot_ptr = NULL; | |
6640a367 | 1421 | return {}; |
f57d2163 DE |
1422 | } |
1423 | ||
1424 | hash = hash_symbol_entry (objfile_context, name, domain); | |
1425 | slot = bsc->symbols + hash % bsc->size; | |
f57d2163 | 1426 | |
d0509ba4 CB |
1427 | *bsc_ptr = bsc; |
1428 | *slot_ptr = slot; | |
1429 | ||
f57d2163 DE |
1430 | if (eq_symbol_entry (slot, objfile_context, name, domain)) |
1431 | { | |
b1e678d9 AB |
1432 | symbol_lookup_debug_printf ("%s block symbol cache hit%s for %s, %s", |
1433 | block == GLOBAL_BLOCK ? "Global" : "Static", | |
1434 | slot->state == SYMBOL_SLOT_NOT_FOUND | |
1435 | ? " (not found)" : "", name, | |
1436 | domain_name (domain)); | |
f57d2163 DE |
1437 | ++bsc->hits; |
1438 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
1439 | return SYMBOL_LOOKUP_FAILED; | |
1440 | return slot->value.found; | |
1441 | } | |
1442 | ||
2c26b84f DE |
1443 | /* Symbol is not present in the cache. */ |
1444 | ||
b1e678d9 AB |
1445 | symbol_lookup_debug_printf ("%s block symbol cache miss for %s, %s", |
1446 | block == GLOBAL_BLOCK ? "Global" : "Static", | |
1447 | name, domain_name (domain)); | |
f57d2163 | 1448 | ++bsc->misses; |
6640a367 | 1449 | return {}; |
f57d2163 DE |
1450 | } |
1451 | ||
f57d2163 DE |
1452 | /* Mark SYMBOL as found in SLOT. |
1453 | OBJFILE_CONTEXT is the current objfile when the lookup was done, or NULL | |
1454 | if it's not needed to distinguish lookups (STATIC_BLOCK). It is *not* | |
1455 | necessarily the objfile the symbol was found in. */ | |
1456 | ||
1457 | static void | |
1458 | symbol_cache_mark_found (struct block_symbol_cache *bsc, | |
1459 | struct symbol_cache_slot *slot, | |
1460 | struct objfile *objfile_context, | |
d12307c1 PMR |
1461 | struct symbol *symbol, |
1462 | const struct block *block) | |
f57d2163 DE |
1463 | { |
1464 | if (bsc == NULL) | |
1465 | return; | |
1466 | if (slot->state != SYMBOL_SLOT_UNUSED) | |
1467 | { | |
1468 | ++bsc->collisions; | |
1469 | symbol_cache_clear_slot (slot); | |
1470 | } | |
1471 | slot->state = SYMBOL_SLOT_FOUND; | |
1472 | slot->objfile_context = objfile_context; | |
d12307c1 PMR |
1473 | slot->value.found.symbol = symbol; |
1474 | slot->value.found.block = block; | |
f57d2163 DE |
1475 | } |
1476 | ||
1477 | /* Mark symbol NAME, DOMAIN as not found in SLOT. | |
1478 | OBJFILE_CONTEXT is the current objfile when the lookup was done, or NULL | |
1479 | if it's not needed to distinguish lookups (STATIC_BLOCK). */ | |
1480 | ||
1481 | static void | |
1482 | symbol_cache_mark_not_found (struct block_symbol_cache *bsc, | |
1483 | struct symbol_cache_slot *slot, | |
1484 | struct objfile *objfile_context, | |
1485 | const char *name, domain_enum domain) | |
1486 | { | |
1487 | if (bsc == NULL) | |
1488 | return; | |
1489 | if (slot->state != SYMBOL_SLOT_UNUSED) | |
1490 | { | |
1491 | ++bsc->collisions; | |
1492 | symbol_cache_clear_slot (slot); | |
1493 | } | |
1494 | slot->state = SYMBOL_SLOT_NOT_FOUND; | |
1495 | slot->objfile_context = objfile_context; | |
1496 | slot->value.not_found.name = xstrdup (name); | |
1497 | slot->value.not_found.domain = domain; | |
1498 | } | |
1499 | ||
1500 | /* Flush the symbol cache of PSPACE. */ | |
1501 | ||
1502 | static void | |
1503 | symbol_cache_flush (struct program_space *pspace) | |
1504 | { | |
3017b94d | 1505 | struct symbol_cache *cache = symbol_cache_key.get (pspace); |
f57d2163 | 1506 | int pass; |
f57d2163 DE |
1507 | |
1508 | if (cache == NULL) | |
1509 | return; | |
1510 | if (cache->global_symbols == NULL) | |
1511 | { | |
1512 | gdb_assert (symbol_cache_size == 0); | |
1513 | gdb_assert (cache->static_symbols == NULL); | |
1514 | return; | |
1515 | } | |
1516 | ||
1517 | /* If the cache is untouched since the last flush, early exit. | |
1518 | This is important for performance during the startup of a program linked | |
1519 | with 100s (or 1000s) of shared libraries. */ | |
1520 | if (cache->global_symbols->misses == 0 | |
1521 | && cache->static_symbols->misses == 0) | |
1522 | return; | |
1523 | ||
1524 | gdb_assert (cache->global_symbols->size == symbol_cache_size); | |
1525 | gdb_assert (cache->static_symbols->size == symbol_cache_size); | |
1526 | ||
1527 | for (pass = 0; pass < 2; ++pass) | |
1528 | { | |
1529 | struct block_symbol_cache *bsc | |
1530 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1531 | unsigned int i; | |
1532 | ||
1533 | for (i = 0; i < bsc->size; ++i) | |
1534 | symbol_cache_clear_slot (&bsc->symbols[i]); | |
1535 | } | |
1536 | ||
1537 | cache->global_symbols->hits = 0; | |
1538 | cache->global_symbols->misses = 0; | |
1539 | cache->global_symbols->collisions = 0; | |
1540 | cache->static_symbols->hits = 0; | |
1541 | cache->static_symbols->misses = 0; | |
1542 | cache->static_symbols->collisions = 0; | |
1543 | } | |
1544 | ||
1545 | /* Dump CACHE. */ | |
1546 | ||
1547 | static void | |
1548 | symbol_cache_dump (const struct symbol_cache *cache) | |
1549 | { | |
1550 | int pass; | |
1551 | ||
1552 | if (cache->global_symbols == NULL) | |
1553 | { | |
6cb06a8c | 1554 | gdb_printf (" <disabled>\n"); |
f57d2163 DE |
1555 | return; |
1556 | } | |
1557 | ||
1558 | for (pass = 0; pass < 2; ++pass) | |
1559 | { | |
1560 | const struct block_symbol_cache *bsc | |
1561 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1562 | unsigned int i; | |
1563 | ||
1564 | if (pass == 0) | |
6cb06a8c | 1565 | gdb_printf ("Global symbols:\n"); |
f57d2163 | 1566 | else |
6cb06a8c | 1567 | gdb_printf ("Static symbols:\n"); |
f57d2163 DE |
1568 | |
1569 | for (i = 0; i < bsc->size; ++i) | |
1570 | { | |
1571 | const struct symbol_cache_slot *slot = &bsc->symbols[i]; | |
1572 | ||
1573 | QUIT; | |
1574 | ||
1575 | switch (slot->state) | |
1576 | { | |
1577 | case SYMBOL_SLOT_UNUSED: | |
1578 | break; | |
1579 | case SYMBOL_SLOT_NOT_FOUND: | |
6cb06a8c TT |
1580 | gdb_printf (" [%4u] = %s, %s %s (not found)\n", i, |
1581 | host_address_to_string (slot->objfile_context), | |
1582 | slot->value.not_found.name, | |
1583 | domain_name (slot->value.not_found.domain)); | |
f57d2163 DE |
1584 | break; |
1585 | case SYMBOL_SLOT_FOUND: | |
d12307c1 PMR |
1586 | { |
1587 | struct symbol *found = slot->value.found.symbol; | |
1588 | const struct objfile *context = slot->objfile_context; | |
1589 | ||
6cb06a8c TT |
1590 | gdb_printf (" [%4u] = %s, %s %s\n", i, |
1591 | host_address_to_string (context), | |
1592 | found->print_name (), | |
1593 | domain_name (found->domain ())); | |
d12307c1 PMR |
1594 | break; |
1595 | } | |
f57d2163 DE |
1596 | } |
1597 | } | |
1598 | } | |
1599 | } | |
1600 | ||
1601 | /* The "mt print symbol-cache" command. */ | |
1602 | ||
1603 | static void | |
510e5e56 | 1604 | maintenance_print_symbol_cache (const char *args, int from_tty) |
f57d2163 | 1605 | { |
94c93c35 | 1606 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1607 | { |
1608 | struct symbol_cache *cache; | |
1609 | ||
6cb06a8c TT |
1610 | gdb_printf (_("Symbol cache for pspace %d\n%s:\n"), |
1611 | pspace->num, | |
1612 | pspace->symfile_object_file != NULL | |
1613 | ? objfile_name (pspace->symfile_object_file) | |
1614 | : "(no object file)"); | |
f57d2163 DE |
1615 | |
1616 | /* If the cache hasn't been created yet, avoid creating one. */ | |
3017b94d | 1617 | cache = symbol_cache_key.get (pspace); |
f57d2163 | 1618 | if (cache == NULL) |
6cb06a8c | 1619 | gdb_printf (" <empty>\n"); |
f57d2163 DE |
1620 | else |
1621 | symbol_cache_dump (cache); | |
1622 | } | |
1623 | } | |
1624 | ||
1625 | /* The "mt flush-symbol-cache" command. */ | |
1626 | ||
1627 | static void | |
510e5e56 | 1628 | maintenance_flush_symbol_cache (const char *args, int from_tty) |
f57d2163 | 1629 | { |
94c93c35 | 1630 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1631 | { |
1632 | symbol_cache_flush (pspace); | |
1633 | } | |
1634 | } | |
1635 | ||
1636 | /* Print usage statistics of CACHE. */ | |
1637 | ||
1638 | static void | |
1639 | symbol_cache_stats (struct symbol_cache *cache) | |
1640 | { | |
1641 | int pass; | |
1642 | ||
1643 | if (cache->global_symbols == NULL) | |
1644 | { | |
6cb06a8c | 1645 | gdb_printf (" <disabled>\n"); |
f57d2163 DE |
1646 | return; |
1647 | } | |
1648 | ||
1649 | for (pass = 0; pass < 2; ++pass) | |
1650 | { | |
1651 | const struct block_symbol_cache *bsc | |
1652 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1653 | ||
1654 | QUIT; | |
1655 | ||
1656 | if (pass == 0) | |
6cb06a8c | 1657 | gdb_printf ("Global block cache stats:\n"); |
f57d2163 | 1658 | else |
6cb06a8c | 1659 | gdb_printf ("Static block cache stats:\n"); |
f57d2163 | 1660 | |
6cb06a8c TT |
1661 | gdb_printf (" size: %u\n", bsc->size); |
1662 | gdb_printf (" hits: %u\n", bsc->hits); | |
1663 | gdb_printf (" misses: %u\n", bsc->misses); | |
1664 | gdb_printf (" collisions: %u\n", bsc->collisions); | |
f57d2163 DE |
1665 | } |
1666 | } | |
1667 | ||
1668 | /* The "mt print symbol-cache-statistics" command. */ | |
1669 | ||
1670 | static void | |
510e5e56 | 1671 | maintenance_print_symbol_cache_statistics (const char *args, int from_tty) |
f57d2163 | 1672 | { |
94c93c35 | 1673 | for (struct program_space *pspace : program_spaces) |
f57d2163 DE |
1674 | { |
1675 | struct symbol_cache *cache; | |
1676 | ||
6cb06a8c TT |
1677 | gdb_printf (_("Symbol cache statistics for pspace %d\n%s:\n"), |
1678 | pspace->num, | |
1679 | pspace->symfile_object_file != NULL | |
1680 | ? objfile_name (pspace->symfile_object_file) | |
1681 | : "(no object file)"); | |
f57d2163 DE |
1682 | |
1683 | /* If the cache hasn't been created yet, avoid creating one. */ | |
3017b94d | 1684 | cache = symbol_cache_key.get (pspace); |
f57d2163 | 1685 | if (cache == NULL) |
6cb06a8c | 1686 | gdb_printf (" empty, no stats available\n"); |
f57d2163 DE |
1687 | else |
1688 | symbol_cache_stats (cache); | |
1689 | } | |
1690 | } | |
1691 | ||
1692 | /* This module's 'new_objfile' observer. */ | |
1693 | ||
1694 | static void | |
1695 | symtab_new_objfile_observer (struct objfile *objfile) | |
1696 | { | |
1697 | /* Ideally we'd use OBJFILE->pspace, but OBJFILE may be NULL. */ | |
1698 | symbol_cache_flush (current_program_space); | |
a0a031bc AB |
1699 | |
1700 | /* When all objfiles have been removed (OBJFILE is nullptr), then forget | |
1701 | everything we know about the main function. */ | |
1702 | if (objfile == nullptr) | |
1703 | set_main_name (nullptr, language_unknown); | |
f57d2163 DE |
1704 | } |
1705 | ||
1706 | /* This module's 'free_objfile' observer. */ | |
1707 | ||
1708 | static void | |
1709 | symtab_free_objfile_observer (struct objfile *objfile) | |
1710 | { | |
1711 | symbol_cache_flush (objfile->pspace); | |
1712 | } | |
1713 | \f | |
49c1de0e | 1714 | /* See symtab.h. */ |
3f01c12b | 1715 | |
49c1de0e TT |
1716 | void |
1717 | fixup_symbol_section (struct symbol *sym, struct objfile *objfile) | |
c906108c | 1718 | { |
49c1de0e TT |
1719 | gdb_assert (sym != nullptr); |
1720 | gdb_assert (sym->is_objfile_owned ()); | |
1721 | gdb_assert (objfile != nullptr); | |
1722 | gdb_assert (sym->section_index () == -1); | |
1723 | ||
1724 | /* Note that if this ends up as -1, fixup_section will handle that | |
1725 | reasonably well. So, it's fine to use the objfile's section | |
1726 | index without doing the check that is done by the wrapper macros | |
1727 | like SECT_OFF_TEXT. */ | |
1728 | int fallback; | |
1729 | switch (sym->aclass ()) | |
1730 | { | |
1731 | case LOC_STATIC: | |
1732 | fallback = objfile->sect_index_data; | |
1733 | break; | |
1734 | ||
1735 | case LOC_LABEL: | |
1736 | fallback = objfile->sect_index_text; | |
1737 | break; | |
1738 | ||
1739 | default: | |
1740 | /* Nothing else will be listed in the minsyms -- no use looking | |
1741 | it up. */ | |
1742 | return; | |
1743 | } | |
1744 | ||
1745 | CORE_ADDR addr = sym->value_address (); | |
1746 | ||
c906108c | 1747 | struct minimal_symbol *msym; |
c906108c | 1748 | |
bccdca4a UW |
1749 | /* First, check whether a minimal symbol with the same name exists |
1750 | and points to the same address. The address check is required | |
1751 | e.g. on PowerPC64, where the minimal symbol for a function will | |
1752 | point to the function descriptor, while the debug symbol will | |
1753 | point to the actual function code. */ | |
49c1de0e | 1754 | msym = lookup_minimal_symbol_by_pc_name (addr, sym->linkage_name (), |
4d4eaa30 | 1755 | objfile); |
907fc202 | 1756 | if (msym) |
49c1de0e | 1757 | sym->set_section_index (msym->section_index ()); |
907fc202 | 1758 | else |
19e2d14b KB |
1759 | { |
1760 | /* Static, function-local variables do appear in the linker | |
1761 | (minimal) symbols, but are frequently given names that won't | |
1762 | be found via lookup_minimal_symbol(). E.g., it has been | |
1763 | observed in frv-uclinux (ELF) executables that a static, | |
1764 | function-local variable named "foo" might appear in the | |
1765 | linker symbols as "foo.6" or "foo.3". Thus, there is no | |
1766 | point in attempting to extend the lookup-by-name mechanism to | |
1767 | handle this case due to the fact that there can be multiple | |
1768 | names. | |
9af17804 | 1769 | |
19e2d14b KB |
1770 | So, instead, search the section table when lookup by name has |
1771 | failed. The ``addr'' and ``endaddr'' fields may have already | |
6a053cb1 TT |
1772 | been relocated. If so, the relocation offset needs to be |
1773 | subtracted from these values when performing the comparison. | |
1774 | We unconditionally subtract it, because, when no relocation | |
1775 | has been performed, the value will simply be zero. | |
9af17804 | 1776 | |
19e2d14b KB |
1777 | The address of the symbol whose section we're fixing up HAS |
1778 | NOT BEEN adjusted (relocated) yet. It can't have been since | |
1779 | the section isn't yet known and knowing the section is | |
1780 | necessary in order to add the correct relocation value. In | |
1781 | other words, we wouldn't even be in this function (attempting | |
1782 | to compute the section) if it were already known. | |
1783 | ||
1784 | Note that it is possible to search the minimal symbols | |
1785 | (subtracting the relocation value if necessary) to find the | |
1786 | matching minimal symbol, but this is overkill and much less | |
1787 | efficient. It is not necessary to find the matching minimal | |
9af17804 DE |
1788 | symbol, only its section. |
1789 | ||
19e2d14b KB |
1790 | Note that this technique (of doing a section table search) |
1791 | can fail when unrelocated section addresses overlap. For | |
1792 | this reason, we still attempt a lookup by name prior to doing | |
1793 | a search of the section table. */ | |
9af17804 | 1794 | |
5250cbc8 | 1795 | for (obj_section *s : objfile->sections ()) |
19e2d14b | 1796 | { |
49c1de0e TT |
1797 | if ((bfd_section_flags (s->the_bfd_section) & SEC_ALLOC) == 0) |
1798 | continue; | |
1799 | ||
9ed8433a | 1800 | int idx = s - objfile->sections_start; |
6a053cb1 | 1801 | CORE_ADDR offset = objfile->section_offsets[idx]; |
19e2d14b | 1802 | |
e27d198c TT |
1803 | if (fallback == -1) |
1804 | fallback = idx; | |
1805 | ||
0c1bcd23 | 1806 | if (s->addr () - offset <= addr && addr < s->endaddr () - offset) |
19e2d14b | 1807 | { |
49c1de0e | 1808 | sym->set_section_index (idx); |
19e2d14b KB |
1809 | return; |
1810 | } | |
1811 | } | |
e27d198c TT |
1812 | |
1813 | /* If we didn't find the section, assume it is in the first | |
1814 | section. If there is no allocated section, then it hardly | |
1815 | matters what we pick, so just pick zero. */ | |
1816 | if (fallback == -1) | |
49c1de0e | 1817 | sym->set_section_index (0); |
e27d198c | 1818 | else |
49c1de0e | 1819 | sym->set_section_index (fallback); |
19e2d14b | 1820 | } |
c906108c SS |
1821 | } |
1822 | ||
b5ec771e PA |
1823 | /* See symtab.h. */ |
1824 | ||
1825 | demangle_for_lookup_info::demangle_for_lookup_info | |
1826 | (const lookup_name_info &lookup_name, language lang) | |
1827 | { | |
1828 | demangle_result_storage storage; | |
1829 | ||
c62446b1 PA |
1830 | if (lookup_name.ignore_parameters () && lang == language_cplus) |
1831 | { | |
1832 | gdb::unique_xmalloc_ptr<char> without_params | |
e0802d59 | 1833 | = cp_remove_params_if_any (lookup_name.c_str (), |
c62446b1 PA |
1834 | lookup_name.completion_mode ()); |
1835 | ||
1836 | if (without_params != NULL) | |
1837 | { | |
de63c46b PA |
1838 | if (lookup_name.match_type () != symbol_name_match_type::SEARCH_NAME) |
1839 | m_demangled_name = demangle_for_lookup (without_params.get (), | |
1840 | lang, storage); | |
c62446b1 PA |
1841 | return; |
1842 | } | |
1843 | } | |
1844 | ||
de63c46b | 1845 | if (lookup_name.match_type () == symbol_name_match_type::SEARCH_NAME) |
e0802d59 | 1846 | m_demangled_name = lookup_name.c_str (); |
de63c46b | 1847 | else |
e0802d59 | 1848 | m_demangled_name = demangle_for_lookup (lookup_name.c_str (), |
de63c46b | 1849 | lang, storage); |
b5ec771e PA |
1850 | } |
1851 | ||
1852 | /* See symtab.h. */ | |
1853 | ||
1854 | const lookup_name_info & | |
1855 | lookup_name_info::match_any () | |
1856 | { | |
1857 | /* Lookup any symbol that "" would complete. I.e., this matches all | |
1858 | symbol names. */ | |
e0802d59 | 1859 | static const lookup_name_info lookup_name ("", symbol_name_match_type::FULL, |
b5ec771e PA |
1860 | true); |
1861 | ||
1862 | return lookup_name; | |
1863 | } | |
1864 | ||
f8eba3c6 | 1865 | /* Compute the demangled form of NAME as used by the various symbol |
2f408ecb PA |
1866 | lookup functions. The result can either be the input NAME |
1867 | directly, or a pointer to a buffer owned by the STORAGE object. | |
f8eba3c6 | 1868 | |
2f408ecb | 1869 | For Ada, this function just returns NAME, unmodified. |
f8eba3c6 TT |
1870 | Normally, Ada symbol lookups are performed using the encoded name |
1871 | rather than the demangled name, and so it might seem to make sense | |
1872 | for this function to return an encoded version of NAME. | |
1873 | Unfortunately, we cannot do this, because this function is used in | |
1874 | circumstances where it is not appropriate to try to encode NAME. | |
1875 | For instance, when displaying the frame info, we demangle the name | |
1876 | of each parameter, and then perform a symbol lookup inside our | |
1877 | function using that demangled name. In Ada, certain functions | |
1878 | have internally-generated parameters whose name contain uppercase | |
1879 | characters. Encoding those name would result in those uppercase | |
1880 | characters to become lowercase, and thus cause the symbol lookup | |
1881 | to fail. */ | |
c906108c | 1882 | |
2f408ecb | 1883 | const char * |
f8eba3c6 | 1884 | demangle_for_lookup (const char *name, enum language lang, |
2f408ecb | 1885 | demangle_result_storage &storage) |
c906108c | 1886 | { |
9c37b5ae | 1887 | /* If we are using C++, D, or Go, demangle the name before doing a |
c378eb4e | 1888 | lookup, so we can always binary search. */ |
53c5240f | 1889 | if (lang == language_cplus) |
729051e6 | 1890 | { |
3456e70c TT |
1891 | gdb::unique_xmalloc_ptr<char> demangled_name |
1892 | = gdb_demangle (name, DMGL_ANSI | DMGL_PARAMS); | |
2f408ecb | 1893 | if (demangled_name != NULL) |
3456e70c | 1894 | return storage.set_malloc_ptr (std::move (demangled_name)); |
2f408ecb PA |
1895 | |
1896 | /* If we were given a non-mangled name, canonicalize it | |
1897 | according to the language (so far only for C++). */ | |
596dc4ad TT |
1898 | gdb::unique_xmalloc_ptr<char> canon = cp_canonicalize_string (name); |
1899 | if (canon != nullptr) | |
1900 | return storage.set_malloc_ptr (std::move (canon)); | |
729051e6 | 1901 | } |
6aecb9c2 JB |
1902 | else if (lang == language_d) |
1903 | { | |
3456e70c | 1904 | gdb::unique_xmalloc_ptr<char> demangled_name = d_demangle (name, 0); |
2f408ecb | 1905 | if (demangled_name != NULL) |
3456e70c | 1906 | return storage.set_malloc_ptr (std::move (demangled_name)); |
6aecb9c2 | 1907 | } |
a766d390 DE |
1908 | else if (lang == language_go) |
1909 | { | |
3456e70c | 1910 | gdb::unique_xmalloc_ptr<char> demangled_name |
82fc57fd | 1911 | = language_def (language_go)->demangle_symbol (name, 0); |
2f408ecb | 1912 | if (demangled_name != NULL) |
3456e70c | 1913 | return storage.set_malloc_ptr (std::move (demangled_name)); |
a766d390 | 1914 | } |
729051e6 | 1915 | |
2f408ecb | 1916 | return name; |
f8eba3c6 TT |
1917 | } |
1918 | ||
5ffa0793 PA |
1919 | /* See symtab.h. */ |
1920 | ||
1921 | unsigned int | |
1922 | search_name_hash (enum language language, const char *search_name) | |
1923 | { | |
fb8006fd | 1924 | return language_def (language)->search_name_hash (search_name); |
5ffa0793 PA |
1925 | } |
1926 | ||
cf901d3b | 1927 | /* See symtab.h. |
f8eba3c6 | 1928 | |
cf901d3b | 1929 | This function (or rather its subordinates) have a bunch of loops and |
7e082072 DE |
1930 | it would seem to be attractive to put in some QUIT's (though I'm not really |
1931 | sure whether it can run long enough to be really important). But there | |
f8eba3c6 | 1932 | are a few calls for which it would appear to be bad news to quit |
7e082072 | 1933 | out of here: e.g., find_proc_desc in alpha-mdebug-tdep.c. (Note |
f8eba3c6 TT |
1934 | that there is C++ code below which can error(), but that probably |
1935 | doesn't affect these calls since they are looking for a known | |
1936 | variable and thus can probably assume it will never hit the C++ | |
1937 | code). */ | |
1938 | ||
d12307c1 | 1939 | struct block_symbol |
f8eba3c6 TT |
1940 | lookup_symbol_in_language (const char *name, const struct block *block, |
1941 | const domain_enum domain, enum language lang, | |
1993b719 | 1942 | struct field_of_this_result *is_a_field_of_this) |
f8eba3c6 | 1943 | { |
2698da26 AB |
1944 | SYMBOL_LOOKUP_SCOPED_DEBUG_ENTER_EXIT; |
1945 | ||
2f408ecb PA |
1946 | demangle_result_storage storage; |
1947 | const char *modified_name = demangle_for_lookup (name, lang, storage); | |
f8eba3c6 | 1948 | |
de63c46b PA |
1949 | return lookup_symbol_aux (modified_name, |
1950 | symbol_name_match_type::FULL, | |
1951 | block, domain, lang, | |
2f408ecb | 1952 | is_a_field_of_this); |
fba7f19c EZ |
1953 | } |
1954 | ||
cf901d3b | 1955 | /* See symtab.h. */ |
53c5240f | 1956 | |
d12307c1 | 1957 | struct block_symbol |
53c5240f | 1958 | lookup_symbol (const char *name, const struct block *block, |
1993b719 TT |
1959 | domain_enum domain, |
1960 | struct field_of_this_result *is_a_field_of_this) | |
53c5240f PA |
1961 | { |
1962 | return lookup_symbol_in_language (name, block, domain, | |
1963 | current_language->la_language, | |
2570f2b7 | 1964 | is_a_field_of_this); |
53c5240f PA |
1965 | } |
1966 | ||
cf901d3b | 1967 | /* See symtab.h. */ |
66a17cb6 | 1968 | |
de63c46b PA |
1969 | struct block_symbol |
1970 | lookup_symbol_search_name (const char *search_name, const struct block *block, | |
1971 | domain_enum domain) | |
1972 | { | |
1973 | return lookup_symbol_aux (search_name, symbol_name_match_type::SEARCH_NAME, | |
1974 | block, domain, language_asm, NULL); | |
1975 | } | |
1976 | ||
1977 | /* See symtab.h. */ | |
1978 | ||
d12307c1 | 1979 | struct block_symbol |
66a17cb6 TT |
1980 | lookup_language_this (const struct language_defn *lang, |
1981 | const struct block *block) | |
1982 | { | |
5bae7c4e | 1983 | if (lang->name_of_this () == NULL || block == NULL) |
6640a367 | 1984 | return {}; |
66a17cb6 | 1985 | |
b1e678d9 AB |
1986 | symbol_lookup_debug_printf_v ("lookup_language_this (%s, %s (objfile %s))", |
1987 | lang->name (), host_address_to_string (block), | |
46baa3c6 | 1988 | objfile_debug_name (block->objfile ())); |
cc485e62 | 1989 | |
03de6823 | 1990 | while (block) |
66a17cb6 TT |
1991 | { |
1992 | struct symbol *sym; | |
1993 | ||
5bae7c4e | 1994 | sym = block_lookup_symbol (block, lang->name_of_this (), |
de63c46b PA |
1995 | symbol_name_match_type::SEARCH_NAME, |
1996 | VAR_DOMAIN); | |
66a17cb6 | 1997 | if (sym != NULL) |
f149aabd | 1998 | { |
b1e678d9 AB |
1999 | symbol_lookup_debug_printf_v |
2000 | ("lookup_language_this (...) = %s (%s, block %s)", | |
2001 | sym->print_name (), host_address_to_string (sym), | |
2002 | host_address_to_string (block)); | |
d12307c1 | 2003 | return (struct block_symbol) {sym, block}; |
f149aabd | 2004 | } |
6c00f721 | 2005 | if (block->function ()) |
03de6823 | 2006 | break; |
f135fe72 | 2007 | block = block->superblock (); |
66a17cb6 | 2008 | } |
03de6823 | 2009 | |
b1e678d9 | 2010 | symbol_lookup_debug_printf_v ("lookup_language_this (...) = NULL"); |
6640a367 | 2011 | return {}; |
66a17cb6 TT |
2012 | } |
2013 | ||
2dc3df72 TT |
2014 | /* Given TYPE, a structure/union, |
2015 | return 1 if the component named NAME from the ultimate target | |
2016 | structure/union is defined, otherwise, return 0. */ | |
2017 | ||
2018 | static int | |
1993b719 TT |
2019 | check_field (struct type *type, const char *name, |
2020 | struct field_of_this_result *is_a_field_of_this) | |
2dc3df72 TT |
2021 | { |
2022 | int i; | |
2023 | ||
2024 | /* The type may be a stub. */ | |
f168693b | 2025 | type = check_typedef (type); |
2dc3df72 | 2026 | |
1f704f76 | 2027 | for (i = type->num_fields () - 1; i >= TYPE_N_BASECLASSES (type); i--) |
2dc3df72 | 2028 | { |
33d16dd9 | 2029 | const char *t_field_name = type->field (i).name (); |
2dc3df72 TT |
2030 | |
2031 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) | |
1993b719 TT |
2032 | { |
2033 | is_a_field_of_this->type = type; | |
ceacbf6e | 2034 | is_a_field_of_this->field = &type->field (i); |
1993b719 TT |
2035 | return 1; |
2036 | } | |
2dc3df72 TT |
2037 | } |
2038 | ||
2039 | /* C++: If it was not found as a data field, then try to return it | |
2040 | as a pointer to a method. */ | |
2041 | ||
2042 | for (i = TYPE_NFN_FIELDS (type) - 1; i >= 0; --i) | |
2043 | { | |
2044 | if (strcmp_iw (TYPE_FN_FIELDLIST_NAME (type, i), name) == 0) | |
1993b719 TT |
2045 | { |
2046 | is_a_field_of_this->type = type; | |
2047 | is_a_field_of_this->fn_field = &TYPE_FN_FIELDLIST (type, i); | |
2048 | return 1; | |
2049 | } | |
2dc3df72 TT |
2050 | } |
2051 | ||
2052 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1993b719 | 2053 | if (check_field (TYPE_BASECLASS (type, i), name, is_a_field_of_this)) |
2dc3df72 TT |
2054 | return 1; |
2055 | ||
2056 | return 0; | |
2057 | } | |
2058 | ||
53c5240f | 2059 | /* Behave like lookup_symbol except that NAME is the natural name |
7e082072 | 2060 | (e.g., demangled name) of the symbol that we're looking for. */ |
5ad1c190 | 2061 | |
d12307c1 | 2062 | static struct block_symbol |
de63c46b PA |
2063 | lookup_symbol_aux (const char *name, symbol_name_match_type match_type, |
2064 | const struct block *block, | |
94af9270 | 2065 | const domain_enum domain, enum language language, |
1993b719 | 2066 | struct field_of_this_result *is_a_field_of_this) |
fba7f19c | 2067 | { |
2698da26 AB |
2068 | SYMBOL_LOOKUP_SCOPED_DEBUG_ENTER_EXIT; |
2069 | ||
d12307c1 | 2070 | struct block_symbol result; |
53c5240f | 2071 | const struct language_defn *langdef; |
406bc4de | 2072 | |
cc485e62 DE |
2073 | if (symbol_lookup_debug) |
2074 | { | |
d6bc0792 | 2075 | struct objfile *objfile = (block == nullptr |
46baa3c6 | 2076 | ? nullptr : block->objfile ()); |
cc485e62 | 2077 | |
b1e678d9 AB |
2078 | symbol_lookup_debug_printf |
2079 | ("demangled symbol name = \"%s\", block @ %s (objfile %s)", | |
2080 | name, host_address_to_string (block), | |
2081 | objfile != NULL ? objfile_debug_name (objfile) : "NULL"); | |
2082 | symbol_lookup_debug_printf | |
2083 | ("domain name = \"%s\", language = \"%s\")", | |
2084 | domain_name (domain), language_str (language)); | |
cc485e62 DE |
2085 | } |
2086 | ||
9a146a11 EZ |
2087 | /* Make sure we do something sensible with is_a_field_of_this, since |
2088 | the callers that set this parameter to some non-null value will | |
1993b719 TT |
2089 | certainly use it later. If we don't set it, the contents of |
2090 | is_a_field_of_this are undefined. */ | |
9a146a11 | 2091 | if (is_a_field_of_this != NULL) |
1993b719 | 2092 | memset (is_a_field_of_this, 0, sizeof (*is_a_field_of_this)); |
9a146a11 | 2093 | |
e4051eeb DC |
2094 | /* Search specified block and its superiors. Don't search |
2095 | STATIC_BLOCK or GLOBAL_BLOCK. */ | |
c906108c | 2096 | |
de63c46b | 2097 | result = lookup_local_symbol (name, match_type, block, domain, language); |
d12307c1 | 2098 | if (result.symbol != NULL) |
cc485e62 | 2099 | { |
b1e678d9 AB |
2100 | symbol_lookup_debug_printf |
2101 | ("found symbol @ %s (using lookup_local_symbol)", | |
2102 | host_address_to_string (result.symbol)); | |
d12307c1 | 2103 | return result; |
cc485e62 | 2104 | } |
c906108c | 2105 | |
53c5240f | 2106 | /* If requested to do so by the caller and if appropriate for LANGUAGE, |
13387711 | 2107 | check to see if NAME is a field of `this'. */ |
53c5240f PA |
2108 | |
2109 | langdef = language_def (language); | |
5f9a71c3 | 2110 | |
6592e36f TT |
2111 | /* Don't do this check if we are searching for a struct. It will |
2112 | not be found by check_field, but will be found by other | |
2113 | means. */ | |
2114 | if (is_a_field_of_this != NULL && domain != STRUCT_DOMAIN) | |
c906108c | 2115 | { |
d12307c1 | 2116 | result = lookup_language_this (langdef, block); |
2b2d9e11 | 2117 | |
d12307c1 | 2118 | if (result.symbol) |
c906108c | 2119 | { |
5f9c5a63 | 2120 | struct type *t = result.symbol->type (); |
9af17804 | 2121 | |
2b2d9e11 VP |
2122 | /* I'm not really sure that type of this can ever |
2123 | be typedefed; just be safe. */ | |
f168693b | 2124 | t = check_typedef (t); |
809f3be1 | 2125 | if (t->is_pointer_or_reference ()) |
27710edb | 2126 | t = t->target_type (); |
9af17804 | 2127 | |
78134374 SM |
2128 | if (t->code () != TYPE_CODE_STRUCT |
2129 | && t->code () != TYPE_CODE_UNION) | |
9af17804 | 2130 | error (_("Internal error: `%s' is not an aggregate"), |
5bae7c4e | 2131 | langdef->name_of_this ()); |
9af17804 | 2132 | |
1993b719 | 2133 | if (check_field (t, name, is_a_field_of_this)) |
cc485e62 | 2134 | { |
b1e678d9 | 2135 | symbol_lookup_debug_printf ("no symbol found"); |
6640a367 | 2136 | return {}; |
cc485e62 | 2137 | } |
c906108c SS |
2138 | } |
2139 | } | |
2140 | ||
53c5240f | 2141 | /* Now do whatever is appropriate for LANGUAGE to look |
774b6a14 | 2142 | up static and global variables. */ |
c906108c | 2143 | |
a78a19b1 | 2144 | result = langdef->lookup_symbol_nonlocal (name, block, domain); |
d12307c1 | 2145 | if (result.symbol != NULL) |
cc485e62 | 2146 | { |
b1e678d9 AB |
2147 | symbol_lookup_debug_printf |
2148 | ("found symbol @ %s (using language lookup_symbol_nonlocal)", | |
2149 | host_address_to_string (result.symbol)); | |
d12307c1 | 2150 | return result; |
cc485e62 | 2151 | } |
c906108c | 2152 | |
774b6a14 TT |
2153 | /* Now search all static file-level symbols. Not strictly correct, |
2154 | but more useful than an error. */ | |
41f62f39 | 2155 | |
d12307c1 | 2156 | result = lookup_static_symbol (name, domain); |
b1e678d9 AB |
2157 | symbol_lookup_debug_printf |
2158 | ("found symbol @ %s (using lookup_static_symbol)", | |
2159 | result.symbol != NULL ? host_address_to_string (result.symbol) : "NULL"); | |
d12307c1 | 2160 | return result; |
41f62f39 JK |
2161 | } |
2162 | ||
e4051eeb | 2163 | /* Check to see if the symbol is defined in BLOCK or its superiors. |
89a9d1b1 | 2164 | Don't search STATIC_BLOCK or GLOBAL_BLOCK. */ |
8155455b | 2165 | |
d12307c1 | 2166 | static struct block_symbol |
de63c46b PA |
2167 | lookup_local_symbol (const char *name, |
2168 | symbol_name_match_type match_type, | |
2169 | const struct block *block, | |
74016e12 DE |
2170 | const domain_enum domain, |
2171 | enum language language) | |
8155455b | 2172 | { |
78004096 TT |
2173 | if (block == nullptr) |
2174 | return {}; | |
2175 | ||
8155455b | 2176 | struct symbol *sym; |
d24e14a0 | 2177 | const struct block *static_block = block->static_block (); |
3c45e9f9 | 2178 | const char *scope = block->scope (); |
13387711 | 2179 | |
78004096 TT |
2180 | /* Check if it's a global block. */ |
2181 | if (static_block == nullptr) | |
6640a367 | 2182 | return {}; |
e4051eeb | 2183 | |
89a9d1b1 | 2184 | while (block != static_block) |
f61e8913 | 2185 | { |
de63c46b | 2186 | sym = lookup_symbol_in_block (name, match_type, block, domain); |
f61e8913 | 2187 | if (sym != NULL) |
d12307c1 | 2188 | return (struct block_symbol) {sym, block}; |
edb3359d | 2189 | |
f55ee35c | 2190 | if (language == language_cplus || language == language_fortran) |
dda83cd7 SM |
2191 | { |
2192 | struct block_symbol blocksym | |
d12307c1 PMR |
2193 | = cp_lookup_symbol_imports_or_template (scope, name, block, |
2194 | domain); | |
2195 | ||
dda83cd7 SM |
2196 | if (blocksym.symbol != NULL) |
2197 | return blocksym; | |
2198 | } | |
13387711 | 2199 | |
a4dfe747 | 2200 | if (block->function () != NULL && block->inlined_p ()) |
edb3359d | 2201 | break; |
f135fe72 | 2202 | block = block->superblock (); |
f61e8913 DC |
2203 | } |
2204 | ||
3aee438b | 2205 | /* We've reached the end of the function without finding a result. */ |
e4051eeb | 2206 | |
6640a367 | 2207 | return {}; |
f61e8913 DC |
2208 | } |
2209 | ||
cf901d3b | 2210 | /* See symtab.h. */ |
3a40aaa0 | 2211 | |
5f9a71c3 | 2212 | struct symbol * |
de63c46b PA |
2213 | lookup_symbol_in_block (const char *name, symbol_name_match_type match_type, |
2214 | const struct block *block, | |
d1a2d36d | 2215 | const domain_enum domain) |
f61e8913 DC |
2216 | { |
2217 | struct symbol *sym; | |
f61e8913 | 2218 | |
b1e678d9 | 2219 | if (symbol_lookup_debug) |
cc485e62 | 2220 | { |
b1e678d9 | 2221 | struct objfile *objfile |
46baa3c6 | 2222 | = block == nullptr ? nullptr : block->objfile (); |
cc485e62 | 2223 | |
b1e678d9 AB |
2224 | symbol_lookup_debug_printf_v |
2225 | ("lookup_symbol_in_block (%s, %s (objfile %s), %s)", | |
2226 | name, host_address_to_string (block), | |
2227 | objfile != nullptr ? objfile_debug_name (objfile) : "NULL", | |
2228 | domain_name (domain)); | |
cc485e62 DE |
2229 | } |
2230 | ||
de63c46b | 2231 | sym = block_lookup_symbol (block, name, match_type, domain); |
f61e8913 | 2232 | if (sym) |
8155455b | 2233 | { |
b1e678d9 AB |
2234 | symbol_lookup_debug_printf_v ("lookup_symbol_in_block (...) = %s", |
2235 | host_address_to_string (sym)); | |
dae58e04 | 2236 | return sym; |
8155455b DC |
2237 | } |
2238 | ||
b1e678d9 | 2239 | symbol_lookup_debug_printf_v ("lookup_symbol_in_block (...) = NULL"); |
8155455b DC |
2240 | return NULL; |
2241 | } | |
2242 | ||
cf901d3b | 2243 | /* See symtab.h. */ |
3a40aaa0 | 2244 | |
d12307c1 | 2245 | struct block_symbol |
efad9b6a | 2246 | lookup_global_symbol_from_objfile (struct objfile *main_objfile, |
442853af | 2247 | enum block_enum block_index, |
3a40aaa0 | 2248 | const char *name, |
21b556f4 | 2249 | const domain_enum domain) |
3a40aaa0 | 2250 | { |
442853af CB |
2251 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2252 | ||
bde09ab7 | 2253 | for (objfile *objfile : main_objfile->separate_debug_objfiles ()) |
15d123c9 | 2254 | { |
d12307c1 | 2255 | struct block_symbol result |
dda83cd7 | 2256 | = lookup_symbol_in_objfile (objfile, block_index, name, domain); |
15d123c9 | 2257 | |
442853af | 2258 | if (result.symbol != nullptr) |
d12307c1 | 2259 | return result; |
15d123c9 | 2260 | } |
56e3f43c | 2261 | |
6640a367 | 2262 | return {}; |
3a40aaa0 UW |
2263 | } |
2264 | ||
19630284 JB |
2265 | /* Check to see if the symbol is defined in one of the OBJFILE's |
2266 | symtabs. BLOCK_INDEX should be either GLOBAL_BLOCK or STATIC_BLOCK, | |
8155455b DC |
2267 | depending on whether or not we want to search global symbols or |
2268 | static symbols. */ | |
2269 | ||
d12307c1 | 2270 | static struct block_symbol |
c32e6a04 CB |
2271 | lookup_symbol_in_objfile_symtabs (struct objfile *objfile, |
2272 | enum block_enum block_index, const char *name, | |
2273 | const domain_enum domain) | |
19630284 | 2274 | { |
ba715d7f JK |
2275 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2276 | ||
b1e678d9 AB |
2277 | symbol_lookup_debug_printf_v |
2278 | ("lookup_symbol_in_objfile_symtabs (%s, %s, %s, %s)", | |
2279 | objfile_debug_name (objfile), | |
2280 | block_index == GLOBAL_BLOCK ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
2281 | name, domain_name (domain)); | |
cc485e62 | 2282 | |
de82891c TV |
2283 | struct block_symbol other; |
2284 | other.symbol = NULL; | |
b669c953 | 2285 | for (compunit_symtab *cust : objfile->compunits ()) |
a743abeb | 2286 | { |
43f3e411 DE |
2287 | const struct blockvector *bv; |
2288 | const struct block *block; | |
d12307c1 | 2289 | struct block_symbol result; |
43f3e411 | 2290 | |
af39c5c8 | 2291 | bv = cust->blockvector (); |
63d609de | 2292 | block = bv->block (block_index); |
d12307c1 PMR |
2293 | result.symbol = block_lookup_symbol_primary (block, name, domain); |
2294 | result.block = block; | |
de82891c TV |
2295 | if (result.symbol == NULL) |
2296 | continue; | |
2297 | if (best_symbol (result.symbol, domain)) | |
a743abeb | 2298 | { |
de82891c TV |
2299 | other = result; |
2300 | break; | |
2301 | } | |
911e1e79 | 2302 | if (result.symbol->matches (domain)) |
de82891c TV |
2303 | { |
2304 | struct symbol *better | |
2305 | = better_symbol (other.symbol, result.symbol, domain); | |
2306 | if (better != other.symbol) | |
cc485e62 | 2307 | { |
de82891c TV |
2308 | other.symbol = better; |
2309 | other.block = block; | |
cc485e62 | 2310 | } |
de82891c TV |
2311 | } |
2312 | } | |
d12307c1 | 2313 | |
de82891c TV |
2314 | if (other.symbol != NULL) |
2315 | { | |
b1e678d9 AB |
2316 | symbol_lookup_debug_printf_v |
2317 | ("lookup_symbol_in_objfile_symtabs (...) = %s (block %s)", | |
2318 | host_address_to_string (other.symbol), | |
2319 | host_address_to_string (other.block)); | |
de82891c | 2320 | return other; |
a743abeb | 2321 | } |
19630284 | 2322 | |
b1e678d9 AB |
2323 | symbol_lookup_debug_printf_v |
2324 | ("lookup_symbol_in_objfile_symtabs (...) = NULL"); | |
6640a367 | 2325 | return {}; |
19630284 JB |
2326 | } |
2327 | ||
74016e12 | 2328 | /* Wrapper around lookup_symbol_in_objfile_symtabs for search_symbols. |
422d65e7 | 2329 | Look up LINKAGE_NAME in DOMAIN in the global and static blocks of OBJFILE |
01465b56 DE |
2330 | and all associated separate debug objfiles. |
2331 | ||
2332 | Normally we only look in OBJFILE, and not any separate debug objfiles | |
2333 | because the outer loop will cause them to be searched too. This case is | |
2334 | different. Here we're called from search_symbols where it will only | |
6471e7d2 | 2335 | call us for the objfile that contains a matching minsym. */ |
422d65e7 | 2336 | |
d12307c1 | 2337 | static struct block_symbol |
422d65e7 DE |
2338 | lookup_symbol_in_objfile_from_linkage_name (struct objfile *objfile, |
2339 | const char *linkage_name, | |
2340 | domain_enum domain) | |
2341 | { | |
2342 | enum language lang = current_language->la_language; | |
e9ad22ee | 2343 | struct objfile *main_objfile; |
422d65e7 | 2344 | |
2f408ecb PA |
2345 | demangle_result_storage storage; |
2346 | const char *modified_name = demangle_for_lookup (linkage_name, lang, storage); | |
2347 | ||
422d65e7 DE |
2348 | if (objfile->separate_debug_objfile_backlink) |
2349 | main_objfile = objfile->separate_debug_objfile_backlink; | |
2350 | else | |
2351 | main_objfile = objfile; | |
2352 | ||
bde09ab7 | 2353 | for (::objfile *cur_objfile : main_objfile->separate_debug_objfiles ()) |
422d65e7 | 2354 | { |
d12307c1 PMR |
2355 | struct block_symbol result; |
2356 | ||
2357 | result = lookup_symbol_in_objfile_symtabs (cur_objfile, GLOBAL_BLOCK, | |
2358 | modified_name, domain); | |
2359 | if (result.symbol == NULL) | |
2360 | result = lookup_symbol_in_objfile_symtabs (cur_objfile, STATIC_BLOCK, | |
2361 | modified_name, domain); | |
2362 | if (result.symbol != NULL) | |
2f408ecb | 2363 | return result; |
422d65e7 DE |
2364 | } |
2365 | ||
6640a367 | 2366 | return {}; |
422d65e7 DE |
2367 | } |
2368 | ||
08c23b0d TT |
2369 | /* A helper function that throws an exception when a symbol was found |
2370 | in a psymtab but not in a symtab. */ | |
2371 | ||
2372 | static void ATTRIBUTE_NORETURN | |
ddbcedf5 | 2373 | error_in_psymtab_expansion (enum block_enum block_index, const char *name, |
43f3e411 | 2374 | struct compunit_symtab *cust) |
08c23b0d TT |
2375 | { |
2376 | error (_("\ | |
2377 | Internal: %s symbol `%s' found in %s psymtab but not in symtab.\n\ | |
2378 | %s may be an inlined function, or may be a template function\n \ | |
2379 | (if a template, try specifying an instantiation: %s<type>)."), | |
f88cb4b6 | 2380 | block_index == GLOBAL_BLOCK ? "global" : "static", |
43f3e411 | 2381 | name, |
0b17a4f7 | 2382 | symtab_to_filename_for_display (cust->primary_filetab ()), |
43f3e411 | 2383 | name, name); |
08c23b0d TT |
2384 | } |
2385 | ||
74016e12 DE |
2386 | /* A helper function for various lookup routines that interfaces with |
2387 | the "quick" symbol table functions. */ | |
8155455b | 2388 | |
d12307c1 | 2389 | static struct block_symbol |
ddbcedf5 CB |
2390 | lookup_symbol_via_quick_fns (struct objfile *objfile, |
2391 | enum block_enum block_index, const char *name, | |
2392 | const domain_enum domain) | |
8155455b | 2393 | { |
43f3e411 | 2394 | struct compunit_symtab *cust; |
346d1dfe | 2395 | const struct blockvector *bv; |
8155455b | 2396 | const struct block *block; |
d12307c1 | 2397 | struct block_symbol result; |
8155455b | 2398 | |
b1e678d9 AB |
2399 | symbol_lookup_debug_printf_v |
2400 | ("lookup_symbol_via_quick_fns (%s, %s, %s, %s)", | |
2401 | objfile_debug_name (objfile), | |
2402 | block_index == GLOBAL_BLOCK ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
2403 | name, domain_name (domain)); | |
cc485e62 | 2404 | |
4d080b46 | 2405 | cust = objfile->lookup_symbol (block_index, name, domain); |
43f3e411 | 2406 | if (cust == NULL) |
cc485e62 | 2407 | { |
b1e678d9 AB |
2408 | symbol_lookup_debug_printf_v |
2409 | ("lookup_symbol_via_quick_fns (...) = NULL"); | |
6640a367 | 2410 | return {}; |
cc485e62 | 2411 | } |
8155455b | 2412 | |
af39c5c8 | 2413 | bv = cust->blockvector (); |
63d609de | 2414 | block = bv->block (block_index); |
de63c46b PA |
2415 | result.symbol = block_lookup_symbol (block, name, |
2416 | symbol_name_match_type::FULL, domain); | |
d12307c1 | 2417 | if (result.symbol == NULL) |
43f3e411 | 2418 | error_in_psymtab_expansion (block_index, name, cust); |
cc485e62 | 2419 | |
b1e678d9 AB |
2420 | symbol_lookup_debug_printf_v |
2421 | ("lookup_symbol_via_quick_fns (...) = %s (block %s)", | |
2422 | host_address_to_string (result.symbol), | |
2423 | host_address_to_string (block)); | |
cc485e62 | 2424 | |
d12307c1 PMR |
2425 | result.block = block; |
2426 | return result; | |
8155455b DC |
2427 | } |
2428 | ||
a78a19b1 | 2429 | /* See language.h. */ |
5f9a71c3 | 2430 | |
d12307c1 | 2431 | struct block_symbol |
a78a19b1 AB |
2432 | language_defn::lookup_symbol_nonlocal (const char *name, |
2433 | const struct block *block, | |
2434 | const domain_enum domain) const | |
5f9a71c3 | 2435 | { |
d12307c1 | 2436 | struct block_symbol result; |
5f9a71c3 | 2437 | |
d9060ba6 DE |
2438 | /* NOTE: dje/2014-10-26: The lookup in all objfiles search could skip |
2439 | the current objfile. Searching the current objfile first is useful | |
2440 | for both matching user expectations as well as performance. */ | |
2441 | ||
d12307c1 PMR |
2442 | result = lookup_symbol_in_static_block (name, block, domain); |
2443 | if (result.symbol != NULL) | |
2444 | return result; | |
5f9a71c3 | 2445 | |
1994afbf DE |
2446 | /* If we didn't find a definition for a builtin type in the static block, |
2447 | search for it now. This is actually the right thing to do and can be | |
2448 | a massive performance win. E.g., when debugging a program with lots of | |
2449 | shared libraries we could search all of them only to find out the | |
2450 | builtin type isn't defined in any of them. This is common for types | |
2451 | like "void". */ | |
2452 | if (domain == VAR_DOMAIN) | |
2453 | { | |
2454 | struct gdbarch *gdbarch; | |
2455 | ||
2456 | if (block == NULL) | |
2457 | gdbarch = target_gdbarch (); | |
2458 | else | |
7f5937df | 2459 | gdbarch = block->gdbarch (); |
a78a19b1 | 2460 | result.symbol = language_lookup_primitive_type_as_symbol (this, |
d12307c1 PMR |
2461 | gdbarch, name); |
2462 | result.block = NULL; | |
2463 | if (result.symbol != NULL) | |
2464 | return result; | |
1994afbf DE |
2465 | } |
2466 | ||
08724ab7 | 2467 | return lookup_global_symbol (name, block, domain); |
5f9a71c3 DC |
2468 | } |
2469 | ||
cf901d3b | 2470 | /* See symtab.h. */ |
5f9a71c3 | 2471 | |
d12307c1 | 2472 | struct block_symbol |
24d864bb DE |
2473 | lookup_symbol_in_static_block (const char *name, |
2474 | const struct block *block, | |
2475 | const domain_enum domain) | |
5f9a71c3 | 2476 | { |
78004096 TT |
2477 | if (block == nullptr) |
2478 | return {}; | |
2479 | ||
d24e14a0 | 2480 | const struct block *static_block = block->static_block (); |
cc485e62 | 2481 | struct symbol *sym; |
5f9a71c3 | 2482 | |
cc485e62 | 2483 | if (static_block == NULL) |
6640a367 | 2484 | return {}; |
cc485e62 DE |
2485 | |
2486 | if (symbol_lookup_debug) | |
2487 | { | |
d6bc0792 | 2488 | struct objfile *objfile = (block == nullptr |
46baa3c6 | 2489 | ? nullptr : block->objfile ()); |
cc485e62 | 2490 | |
b1e678d9 AB |
2491 | symbol_lookup_debug_printf |
2492 | ("lookup_symbol_in_static_block (%s, %s (objfile %s), %s)", | |
2493 | name, host_address_to_string (block), | |
2494 | objfile != nullptr ? objfile_debug_name (objfile) : "NULL", | |
2495 | domain_name (domain)); | |
cc485e62 DE |
2496 | } |
2497 | ||
de63c46b PA |
2498 | sym = lookup_symbol_in_block (name, |
2499 | symbol_name_match_type::FULL, | |
2500 | static_block, domain); | |
b1e678d9 AB |
2501 | symbol_lookup_debug_printf ("lookup_symbol_in_static_block (...) = %s", |
2502 | sym != NULL | |
2503 | ? host_address_to_string (sym) : "NULL"); | |
d12307c1 | 2504 | return (struct block_symbol) {sym, static_block}; |
5f9a71c3 DC |
2505 | } |
2506 | ||
af3768e9 DE |
2507 | /* Perform the standard symbol lookup of NAME in OBJFILE: |
2508 | 1) First search expanded symtabs, and if not found | |
2509 | 2) Search the "quick" symtabs (partial or .gdb_index). | |
2510 | BLOCK_INDEX is one of GLOBAL_BLOCK or STATIC_BLOCK. */ | |
2511 | ||
d12307c1 | 2512 | static struct block_symbol |
c32e6a04 | 2513 | lookup_symbol_in_objfile (struct objfile *objfile, enum block_enum block_index, |
af3768e9 DE |
2514 | const char *name, const domain_enum domain) |
2515 | { | |
d12307c1 | 2516 | struct block_symbol result; |
af3768e9 | 2517 | |
c32e6a04 CB |
2518 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2519 | ||
b1e678d9 AB |
2520 | symbol_lookup_debug_printf ("lookup_symbol_in_objfile (%s, %s, %s, %s)", |
2521 | objfile_debug_name (objfile), | |
2522 | block_index == GLOBAL_BLOCK | |
2523 | ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
2524 | name, domain_name (domain)); | |
cc485e62 | 2525 | |
af3768e9 DE |
2526 | result = lookup_symbol_in_objfile_symtabs (objfile, block_index, |
2527 | name, domain); | |
d12307c1 | 2528 | if (result.symbol != NULL) |
af3768e9 | 2529 | { |
b1e678d9 AB |
2530 | symbol_lookup_debug_printf |
2531 | ("lookup_symbol_in_objfile (...) = %s (in symtabs)", | |
2532 | host_address_to_string (result.symbol)); | |
cc485e62 | 2533 | return result; |
af3768e9 DE |
2534 | } |
2535 | ||
cc485e62 DE |
2536 | result = lookup_symbol_via_quick_fns (objfile, block_index, |
2537 | name, domain); | |
b1e678d9 AB |
2538 | symbol_lookup_debug_printf ("lookup_symbol_in_objfile (...) = %s%s", |
2539 | result.symbol != NULL | |
2540 | ? host_address_to_string (result.symbol) | |
2541 | : "NULL", | |
2542 | result.symbol != NULL ? " (via quick fns)" | |
2543 | : ""); | |
af3768e9 DE |
2544 | return result; |
2545 | } | |
2546 | ||
9aa55206 CB |
2547 | /* This function contains the common code of lookup_{global,static}_symbol. |
2548 | OBJFILE is only used if BLOCK_INDEX is GLOBAL_SCOPE, in which case it is | |
2549 | the objfile to start the lookup in. */ | |
5f9a71c3 | 2550 | |
9aa55206 CB |
2551 | static struct block_symbol |
2552 | lookup_global_or_static_symbol (const char *name, | |
2553 | enum block_enum block_index, | |
2554 | struct objfile *objfile, | |
2555 | const domain_enum domain) | |
5f9a71c3 | 2556 | { |
f57d2163 | 2557 | struct symbol_cache *cache = get_symbol_cache (current_program_space); |
d12307c1 | 2558 | struct block_symbol result; |
f57d2163 DE |
2559 | struct block_symbol_cache *bsc; |
2560 | struct symbol_cache_slot *slot; | |
b2fb95e0 | 2561 | |
9aa55206 CB |
2562 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2563 | gdb_assert (objfile == nullptr || block_index == GLOBAL_BLOCK); | |
f57d2163 DE |
2564 | |
2565 | /* First see if we can find the symbol in the cache. | |
2566 | This works because we use the current objfile to qualify the lookup. */ | |
9aa55206 | 2567 | result = symbol_cache_lookup (cache, objfile, block_index, name, domain, |
d12307c1 PMR |
2568 | &bsc, &slot); |
2569 | if (result.symbol != NULL) | |
f57d2163 | 2570 | { |
d12307c1 | 2571 | if (SYMBOL_LOOKUP_FAILED_P (result)) |
6640a367 | 2572 | return {}; |
d12307c1 | 2573 | return result; |
f57d2163 DE |
2574 | } |
2575 | ||
626ca2c0 | 2576 | /* Do a global search (of global blocks, heh). */ |
d12307c1 | 2577 | if (result.symbol == NULL) |
6e9cd73e SM |
2578 | gdbarch_iterate_over_objfiles_in_search_order |
2579 | (objfile != NULL ? objfile->arch () : target_gdbarch (), | |
2580 | [&result, block_index, name, domain] (struct objfile *objfile_iter) | |
2581 | { | |
2582 | result = lookup_symbol_in_objfile (objfile_iter, block_index, | |
2583 | name, domain); | |
2584 | return result.symbol != nullptr; | |
2585 | }, | |
2586 | objfile); | |
6a3ca067 | 2587 | |
d12307c1 PMR |
2588 | if (result.symbol != NULL) |
2589 | symbol_cache_mark_found (bsc, slot, objfile, result.symbol, result.block); | |
f57d2163 DE |
2590 | else |
2591 | symbol_cache_mark_not_found (bsc, slot, objfile, name, domain); | |
2592 | ||
d12307c1 | 2593 | return result; |
5f9a71c3 DC |
2594 | } |
2595 | ||
9aa55206 CB |
2596 | /* See symtab.h. */ |
2597 | ||
2598 | struct block_symbol | |
2599 | lookup_static_symbol (const char *name, const domain_enum domain) | |
2600 | { | |
2601 | return lookup_global_or_static_symbol (name, STATIC_BLOCK, nullptr, domain); | |
2602 | } | |
2603 | ||
2604 | /* See symtab.h. */ | |
2605 | ||
2606 | struct block_symbol | |
2607 | lookup_global_symbol (const char *name, | |
2608 | const struct block *block, | |
2609 | const domain_enum domain) | |
2610 | { | |
d3d32391 AB |
2611 | /* If a block was passed in, we want to search the corresponding |
2612 | global block first. This yields "more expected" behavior, and is | |
2613 | needed to support 'FILENAME'::VARIABLE lookups. */ | |
8f14fd11 | 2614 | const struct block *global_block |
d24e14a0 | 2615 | = block == nullptr ? nullptr : block->global_block (); |
70bc38f5 | 2616 | symbol *sym = NULL; |
d3d32391 AB |
2617 | if (global_block != nullptr) |
2618 | { | |
70bc38f5 TV |
2619 | sym = lookup_symbol_in_block (name, |
2620 | symbol_name_match_type::FULL, | |
2621 | global_block, domain); | |
2622 | if (sym != NULL && best_symbol (sym, domain)) | |
d3d32391 AB |
2623 | return { sym, global_block }; |
2624 | } | |
2625 | ||
d6bc0792 TT |
2626 | struct objfile *objfile = nullptr; |
2627 | if (block != nullptr) | |
2628 | { | |
46baa3c6 | 2629 | objfile = block->objfile (); |
d6bc0792 TT |
2630 | if (objfile->separate_debug_objfile_backlink != nullptr) |
2631 | objfile = objfile->separate_debug_objfile_backlink; | |
2632 | } | |
2633 | ||
70bc38f5 TV |
2634 | block_symbol bs |
2635 | = lookup_global_or_static_symbol (name, GLOBAL_BLOCK, objfile, domain); | |
2636 | if (better_symbol (sym, bs.symbol, domain) == sym) | |
2637 | return { sym, global_block }; | |
2638 | else | |
2639 | return bs; | |
9aa55206 CB |
2640 | } |
2641 | ||
ececd218 | 2642 | bool |
4186eb54 KS |
2643 | symbol_matches_domain (enum language symbol_language, |
2644 | domain_enum symbol_domain, | |
2645 | domain_enum domain) | |
2646 | { | |
2647 | /* For C++ "struct foo { ... }" also defines a typedef for "foo". | |
4186eb54 KS |
2648 | Similarly, any Ada type declaration implicitly defines a typedef. */ |
2649 | if (symbol_language == language_cplus | |
2650 | || symbol_language == language_d | |
65547233 TT |
2651 | || symbol_language == language_ada |
2652 | || symbol_language == language_rust) | |
4186eb54 KS |
2653 | { |
2654 | if ((domain == VAR_DOMAIN || domain == STRUCT_DOMAIN) | |
2655 | && symbol_domain == STRUCT_DOMAIN) | |
ececd218 | 2656 | return true; |
4186eb54 KS |
2657 | } |
2658 | /* For all other languages, strict match is required. */ | |
2659 | return (symbol_domain == domain); | |
2660 | } | |
2661 | ||
cf901d3b | 2662 | /* See symtab.h. */ |
c906108c | 2663 | |
ccefe4c4 TT |
2664 | struct type * |
2665 | lookup_transparent_type (const char *name) | |
c906108c | 2666 | { |
54f4ca46 | 2667 | return current_language->lookup_transparent_type (name); |
ccefe4c4 | 2668 | } |
9af17804 | 2669 | |
ccefe4c4 TT |
2670 | /* A helper for basic_lookup_transparent_type that interfaces with the |
2671 | "quick" symbol table functions. */ | |
357e46e7 | 2672 | |
ccefe4c4 | 2673 | static struct type * |
ddbcedf5 CB |
2674 | basic_lookup_transparent_type_quick (struct objfile *objfile, |
2675 | enum block_enum block_index, | |
ccefe4c4 TT |
2676 | const char *name) |
2677 | { | |
43f3e411 | 2678 | struct compunit_symtab *cust; |
346d1dfe | 2679 | const struct blockvector *bv; |
582942f4 | 2680 | const struct block *block; |
ccefe4c4 | 2681 | struct symbol *sym; |
c906108c | 2682 | |
4d080b46 | 2683 | cust = objfile->lookup_symbol (block_index, name, STRUCT_DOMAIN); |
43f3e411 | 2684 | if (cust == NULL) |
ccefe4c4 | 2685 | return NULL; |
c906108c | 2686 | |
af39c5c8 | 2687 | bv = cust->blockvector (); |
63d609de | 2688 | block = bv->block (block_index); |
b7a92724 TT |
2689 | |
2690 | lookup_name_info lookup_name (name, symbol_name_match_type::FULL); | |
2691 | sym = block_find_symbol (block, lookup_name, STRUCT_DOMAIN, nullptr); | |
2692 | if (sym == nullptr) | |
43f3e411 | 2693 | error_in_psymtab_expansion (block_index, name, cust); |
5f9c5a63 SM |
2694 | gdb_assert (!TYPE_IS_OPAQUE (sym->type ())); |
2695 | return sym->type (); | |
b2e2f908 | 2696 | } |
08c23b0d | 2697 | |
b2e2f908 DE |
2698 | /* Subroutine of basic_lookup_transparent_type to simplify it. |
2699 | Look up the non-opaque definition of NAME in BLOCK_INDEX of OBJFILE. | |
2700 | BLOCK_INDEX is either GLOBAL_BLOCK or STATIC_BLOCK. */ | |
2701 | ||
2702 | static struct type * | |
ddbcedf5 CB |
2703 | basic_lookup_transparent_type_1 (struct objfile *objfile, |
2704 | enum block_enum block_index, | |
b2e2f908 DE |
2705 | const char *name) |
2706 | { | |
b2e2f908 DE |
2707 | const struct blockvector *bv; |
2708 | const struct block *block; | |
2709 | const struct symbol *sym; | |
2710 | ||
b7a92724 | 2711 | lookup_name_info lookup_name (name, symbol_name_match_type::FULL); |
b669c953 | 2712 | for (compunit_symtab *cust : objfile->compunits ()) |
b2e2f908 | 2713 | { |
af39c5c8 | 2714 | bv = cust->blockvector (); |
63d609de | 2715 | block = bv->block (block_index); |
b7a92724 TT |
2716 | sym = block_find_symbol (block, lookup_name, STRUCT_DOMAIN, nullptr); |
2717 | if (sym != nullptr) | |
b2e2f908 | 2718 | { |
5f9c5a63 SM |
2719 | gdb_assert (!TYPE_IS_OPAQUE (sym->type ())); |
2720 | return sym->type (); | |
b2e2f908 DE |
2721 | } |
2722 | } | |
c906108c | 2723 | |
ccefe4c4 | 2724 | return NULL; |
b368761e | 2725 | } |
c906108c | 2726 | |
b368761e DC |
2727 | /* The standard implementation of lookup_transparent_type. This code |
2728 | was modeled on lookup_symbol -- the parts not relevant to looking | |
2729 | up types were just left out. In particular it's assumed here that | |
cf901d3b | 2730 | types are available in STRUCT_DOMAIN and only in file-static or |
b368761e | 2731 | global blocks. */ |
c906108c SS |
2732 | |
2733 | struct type * | |
b368761e | 2734 | basic_lookup_transparent_type (const char *name) |
c906108c | 2735 | { |
ccefe4c4 | 2736 | struct type *t; |
c906108c SS |
2737 | |
2738 | /* Now search all the global symbols. Do the symtab's first, then | |
c378eb4e | 2739 | check the psymtab's. If a psymtab indicates the existence |
c906108c SS |
2740 | of the desired name as a global, then do psymtab-to-symtab |
2741 | conversion on the fly and return the found symbol. */ | |
c5aa993b | 2742 | |
2030c079 | 2743 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2744 | { |
2745 | t = basic_lookup_transparent_type_1 (objfile, GLOBAL_BLOCK, name); | |
2746 | if (t) | |
2747 | return t; | |
2748 | } | |
c906108c | 2749 | |
2030c079 | 2750 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2751 | { |
2752 | t = basic_lookup_transparent_type_quick (objfile, GLOBAL_BLOCK, name); | |
2753 | if (t) | |
2754 | return t; | |
2755 | } | |
c906108c SS |
2756 | |
2757 | /* Now search the static file-level symbols. | |
2758 | Not strictly correct, but more useful than an error. | |
2759 | Do the symtab's first, then | |
c378eb4e | 2760 | check the psymtab's. If a psymtab indicates the existence |
c906108c | 2761 | of the desired name as a file-level static, then do psymtab-to-symtab |
c378eb4e | 2762 | conversion on the fly and return the found symbol. */ |
c906108c | 2763 | |
2030c079 | 2764 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2765 | { |
2766 | t = basic_lookup_transparent_type_1 (objfile, STATIC_BLOCK, name); | |
2767 | if (t) | |
2768 | return t; | |
2769 | } | |
c906108c | 2770 | |
2030c079 | 2771 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
2772 | { |
2773 | t = basic_lookup_transparent_type_quick (objfile, STATIC_BLOCK, name); | |
2774 | if (t) | |
2775 | return t; | |
2776 | } | |
ccefe4c4 | 2777 | |
c906108c SS |
2778 | return (struct type *) 0; |
2779 | } | |
2780 | ||
6969f124 | 2781 | /* See symtab.h. */ |
f8eba3c6 | 2782 | |
6969f124 | 2783 | bool |
b5ec771e PA |
2784 | iterate_over_symbols (const struct block *block, |
2785 | const lookup_name_info &name, | |
f8eba3c6 | 2786 | const domain_enum domain, |
14bc53a8 | 2787 | gdb::function_view<symbol_found_callback_ftype> callback) |
f8eba3c6 | 2788 | { |
a1b29426 | 2789 | for (struct symbol *sym : block_iterator_range (block, &name)) |
4eeaa230 | 2790 | { |
911e1e79 | 2791 | if (sym->matches (domain)) |
f8eba3c6 | 2792 | { |
7e41c8db KS |
2793 | struct block_symbol block_sym = {sym, block}; |
2794 | ||
2795 | if (!callback (&block_sym)) | |
6969f124 | 2796 | return false; |
f8eba3c6 | 2797 | } |
f8eba3c6 | 2798 | } |
6969f124 | 2799 | return true; |
f8eba3c6 TT |
2800 | } |
2801 | ||
6a3dbf1b TT |
2802 | /* See symtab.h. */ |
2803 | ||
2804 | bool | |
2805 | iterate_over_symbols_terminated | |
2806 | (const struct block *block, | |
2807 | const lookup_name_info &name, | |
2808 | const domain_enum domain, | |
2809 | gdb::function_view<symbol_found_callback_ftype> callback) | |
2810 | { | |
2811 | if (!iterate_over_symbols (block, name, domain, callback)) | |
2812 | return false; | |
2813 | struct block_symbol block_sym = {nullptr, block}; | |
2814 | return callback (&block_sym); | |
2815 | } | |
2816 | ||
43f3e411 DE |
2817 | /* Find the compunit symtab associated with PC and SECTION. |
2818 | This will read in debug info as necessary. */ | |
c906108c | 2819 | |
43f3e411 DE |
2820 | struct compunit_symtab * |
2821 | find_pc_sect_compunit_symtab (CORE_ADDR pc, struct obj_section *section) | |
c906108c | 2822 | { |
43f3e411 | 2823 | struct compunit_symtab *best_cust = NULL; |
61eb46a4 | 2824 | CORE_ADDR best_cust_range = 0; |
77e371c0 | 2825 | struct bound_minimal_symbol msymbol; |
8a48e967 DJ |
2826 | |
2827 | /* If we know that this is not a text address, return failure. This is | |
2828 | necessary because we loop based on the block's high and low code | |
2829 | addresses, which do not include the data ranges, and because | |
2830 | we call find_pc_sect_psymtab which has a similar restriction based | |
2831 | on the partial_symtab's texthigh and textlow. */ | |
77e371c0 | 2832 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); |
1ed9f74e | 2833 | if (msymbol.minsym && msymbol.minsym->data_p ()) |
8a48e967 | 2834 | return NULL; |
c906108c SS |
2835 | |
2836 | /* Search all symtabs for the one whose file contains our address, and which | |
2837 | is the smallest of all the ones containing the address. This is designed | |
2838 | to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000 | |
2839 | and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from | |
2840 | 0x1000-0x4000, but for address 0x2345 we want to return symtab b. | |
2841 | ||
2842 | This happens for native ecoff format, where code from included files | |
c378eb4e | 2843 | gets its own symtab. The symtab for the included file should have |
c906108c SS |
2844 | been read in already via the dependency mechanism. |
2845 | It might be swifter to create several symtabs with the same name | |
2846 | like xcoff does (I'm not sure). | |
2847 | ||
2848 | It also happens for objfiles that have their functions reordered. | |
2849 | For these, the symtab we are looking for is not necessarily read in. */ | |
2850 | ||
2030c079 | 2851 | for (objfile *obj_file : current_program_space->objfiles ()) |
d8aeb77f | 2852 | { |
b669c953 | 2853 | for (compunit_symtab *cust : obj_file->compunits ()) |
d8aeb77f | 2854 | { |
af39c5c8 | 2855 | const struct blockvector *bv = cust->blockvector (); |
63d609de | 2856 | const struct block *global_block = bv->global_block (); |
4b8791e1 SM |
2857 | CORE_ADDR start = global_block->start (); |
2858 | CORE_ADDR end = global_block->end (); | |
61eb46a4 TV |
2859 | bool in_range_p = start <= pc && pc < end; |
2860 | if (!in_range_p) | |
2861 | continue; | |
43f3e411 | 2862 | |
414705d1 | 2863 | if (bv->map () != nullptr) |
1b00ef06 | 2864 | { |
769520b7 | 2865 | if (bv->map ()->find (pc) == nullptr) |
1b00ef06 TV |
2866 | continue; |
2867 | ||
2868 | return cust; | |
2869 | } | |
2870 | ||
61eb46a4 TV |
2871 | CORE_ADDR range = end - start; |
2872 | if (best_cust != nullptr | |
2873 | && range >= best_cust_range) | |
2874 | /* Cust doesn't have a smaller range than best_cust, skip it. */ | |
2875 | continue; | |
2876 | ||
2877 | /* For an objfile that has its functions reordered, | |
2878 | find_pc_psymtab will find the proper partial symbol table | |
2879 | and we simply return its corresponding symtab. */ | |
2880 | /* In order to better support objfiles that contain both | |
2881 | stabs and coff debugging info, we continue on if a psymtab | |
2882 | can't be found. */ | |
100e3935 TT |
2883 | struct compunit_symtab *result |
2884 | = obj_file->find_pc_sect_compunit_symtab (msymbol, pc, | |
2885 | section, 0); | |
2886 | if (result != nullptr) | |
2887 | return result; | |
c906108c | 2888 | |
61eb46a4 | 2889 | if (section != 0) |
d8aeb77f | 2890 | { |
548a89df | 2891 | struct symbol *found_sym = nullptr; |
61eb46a4 | 2892 | |
bd24c5d6 | 2893 | for (int b_index = GLOBAL_BLOCK; |
548a89df | 2894 | b_index <= STATIC_BLOCK && found_sym == nullptr; |
bd24c5d6 | 2895 | ++b_index) |
d8aeb77f | 2896 | { |
63d609de | 2897 | const struct block *b = bv->block (b_index); |
548a89df | 2898 | for (struct symbol *sym : block_iterator_range (b)) |
bd24c5d6 | 2899 | { |
ebbc3a7d | 2900 | if (matching_obj_sections (sym->obj_section (obj_file), |
bd24c5d6 | 2901 | section)) |
548a89df TT |
2902 | { |
2903 | found_sym = sym; | |
2904 | break; | |
2905 | } | |
bd24c5d6 | 2906 | } |
d8aeb77f | 2907 | } |
548a89df | 2908 | if (found_sym == nullptr) |
61eb46a4 | 2909 | continue; /* No symbol in this symtab matches |
d8aeb77f | 2910 | section. */ |
d8aeb77f | 2911 | } |
61eb46a4 TV |
2912 | |
2913 | /* Cust is best found sofar, save it. */ | |
2914 | best_cust = cust; | |
2915 | best_cust_range = range; | |
d8aeb77f TT |
2916 | } |
2917 | } | |
c906108c | 2918 | |
43f3e411 DE |
2919 | if (best_cust != NULL) |
2920 | return best_cust; | |
c906108c | 2921 | |
072cabfe DE |
2922 | /* Not found in symtabs, search the "quick" symtabs (e.g. psymtabs). */ |
2923 | ||
2030c079 | 2924 | for (objfile *objf : current_program_space->objfiles ()) |
aed57c53 | 2925 | { |
4d080b46 TT |
2926 | struct compunit_symtab *result |
2927 | = objf->find_pc_sect_compunit_symtab (msymbol, pc, section, 1); | |
aed57c53 TT |
2928 | if (result != NULL) |
2929 | return result; | |
2930 | } | |
ccefe4c4 TT |
2931 | |
2932 | return NULL; | |
c906108c SS |
2933 | } |
2934 | ||
43f3e411 DE |
2935 | /* Find the compunit symtab associated with PC. |
2936 | This will read in debug info as necessary. | |
2937 | Backward compatibility, no section. */ | |
c906108c | 2938 | |
43f3e411 DE |
2939 | struct compunit_symtab * |
2940 | find_pc_compunit_symtab (CORE_ADDR pc) | |
c906108c | 2941 | { |
43f3e411 | 2942 | return find_pc_sect_compunit_symtab (pc, find_pc_mapped_section (pc)); |
c906108c | 2943 | } |
71a3c369 TT |
2944 | |
2945 | /* See symtab.h. */ | |
2946 | ||
2947 | struct symbol * | |
2948 | find_symbol_at_address (CORE_ADDR address) | |
2949 | { | |
1f2624a3 TT |
2950 | /* A helper function to search a given symtab for a symbol matching |
2951 | ADDR. */ | |
2952 | auto search_symtab = [] (compunit_symtab *symtab, CORE_ADDR addr) -> symbol * | |
aed57c53 | 2953 | { |
af39c5c8 | 2954 | const struct blockvector *bv = symtab->blockvector (); |
71a3c369 | 2955 | |
1f2624a3 | 2956 | for (int i = GLOBAL_BLOCK; i <= STATIC_BLOCK; ++i) |
aed57c53 | 2957 | { |
63d609de | 2958 | const struct block *b = bv->block (i); |
71a3c369 | 2959 | |
548a89df | 2960 | for (struct symbol *sym : block_iterator_range (b)) |
71a3c369 | 2961 | { |
66d7f48f | 2962 | if (sym->aclass () == LOC_STATIC |
4aeddc50 | 2963 | && sym->value_address () == addr) |
1f2624a3 TT |
2964 | return sym; |
2965 | } | |
2966 | } | |
2967 | return nullptr; | |
2968 | }; | |
aed57c53 | 2969 | |
1f2624a3 TT |
2970 | for (objfile *objfile : current_program_space->objfiles ()) |
2971 | { | |
4d080b46 TT |
2972 | /* If this objfile was read with -readnow, then we need to |
2973 | search the symtabs directly. */ | |
2974 | if ((objfile->flags & OBJF_READNOW) != 0) | |
1f2624a3 TT |
2975 | { |
2976 | for (compunit_symtab *symtab : objfile->compunits ()) | |
2977 | { | |
2978 | struct symbol *sym = search_symtab (symtab, address); | |
2979 | if (sym != nullptr) | |
2980 | return sym; | |
2981 | } | |
2982 | } | |
2983 | else | |
2984 | { | |
2985 | struct compunit_symtab *symtab | |
4d080b46 | 2986 | = objfile->find_compunit_symtab_by_address (address); |
1f2624a3 TT |
2987 | if (symtab != NULL) |
2988 | { | |
2989 | struct symbol *sym = search_symtab (symtab, address); | |
2990 | if (sym != nullptr) | |
2991 | return sym; | |
71a3c369 | 2992 | } |
aed57c53 TT |
2993 | } |
2994 | } | |
71a3c369 TT |
2995 | |
2996 | return NULL; | |
2997 | } | |
2998 | ||
c906108c | 2999 | \f |
c5aa993b | 3000 | |
7e73cedf | 3001 | /* Find the source file and line number for a given PC value and SECTION. |
c906108c SS |
3002 | Return a structure containing a symtab pointer, a line number, |
3003 | and a pc range for the entire source line. | |
3004 | The value's .pc field is NOT the specified pc. | |
3005 | NOTCURRENT nonzero means, if specified pc is on a line boundary, | |
3006 | use the line that ends there. Otherwise, in that case, the line | |
3007 | that begins there is used. */ | |
3008 | ||
3009 | /* The big complication here is that a line may start in one file, and end just | |
3010 | before the start of another file. This usually occurs when you #include | |
3011 | code in the middle of a subroutine. To properly find the end of a line's PC | |
3012 | range, we must search all symtabs associated with this compilation unit, and | |
3013 | find the one whose first PC is closer than that of the next line in this | |
3014 | symtab. */ | |
3015 | ||
c906108c | 3016 | struct symtab_and_line |
714835d5 | 3017 | find_pc_sect_line (CORE_ADDR pc, struct obj_section *section, int notcurrent) |
c906108c | 3018 | { |
43f3e411 | 3019 | struct compunit_symtab *cust; |
977a0c16 | 3020 | const linetable *l; |
52f0bd74 | 3021 | int len; |
977a0c16 | 3022 | const linetable_entry *item; |
346d1dfe | 3023 | const struct blockvector *bv; |
7cbd4a93 | 3024 | struct bound_minimal_symbol msymbol; |
c906108c SS |
3025 | |
3026 | /* Info on best line seen so far, and where it starts, and its file. */ | |
3027 | ||
977a0c16 | 3028 | const linetable_entry *best = NULL; |
c906108c SS |
3029 | CORE_ADDR best_end = 0; |
3030 | struct symtab *best_symtab = 0; | |
3031 | ||
3032 | /* Store here the first line number | |
3033 | of a file which contains the line at the smallest pc after PC. | |
3034 | If we don't find a line whose range contains PC, | |
3035 | we will use a line one less than this, | |
3036 | with a range from the start of that file to the first line's pc. */ | |
977a0c16 | 3037 | const linetable_entry *alt = NULL; |
c906108c SS |
3038 | |
3039 | /* Info on best line seen in this file. */ | |
3040 | ||
977a0c16 | 3041 | const linetable_entry *prev; |
c906108c SS |
3042 | |
3043 | /* If this pc is not from the current frame, | |
3044 | it is the address of the end of a call instruction. | |
3045 | Quite likely that is the start of the following statement. | |
3046 | But what we want is the statement containing the instruction. | |
3047 | Fudge the pc to make sure we get that. */ | |
3048 | ||
b77b1eb7 JB |
3049 | /* It's tempting to assume that, if we can't find debugging info for |
3050 | any function enclosing PC, that we shouldn't search for line | |
3051 | number info, either. However, GAS can emit line number info for | |
3052 | assembly files --- very helpful when debugging hand-written | |
3053 | assembly code. In such a case, we'd have no debug info for the | |
3054 | function, but we would have line info. */ | |
648f4f79 | 3055 | |
c906108c SS |
3056 | if (notcurrent) |
3057 | pc -= 1; | |
3058 | ||
c5aa993b | 3059 | /* elz: added this because this function returned the wrong |
c906108c | 3060 | information if the pc belongs to a stub (import/export) |
c378eb4e | 3061 | to call a shlib function. This stub would be anywhere between |
9af17804 | 3062 | two functions in the target, and the line info was erroneously |
c378eb4e MS |
3063 | taken to be the one of the line before the pc. */ |
3064 | ||
c906108c | 3065 | /* RT: Further explanation: |
c5aa993b | 3066 | |
c906108c SS |
3067 | * We have stubs (trampolines) inserted between procedures. |
3068 | * | |
3069 | * Example: "shr1" exists in a shared library, and a "shr1" stub also | |
3070 | * exists in the main image. | |
3071 | * | |
3072 | * In the minimal symbol table, we have a bunch of symbols | |
c378eb4e | 3073 | * sorted by start address. The stubs are marked as "trampoline", |
c906108c SS |
3074 | * the others appear as text. E.g.: |
3075 | * | |
9af17804 | 3076 | * Minimal symbol table for main image |
c906108c SS |
3077 | * main: code for main (text symbol) |
3078 | * shr1: stub (trampoline symbol) | |
3079 | * foo: code for foo (text symbol) | |
3080 | * ... | |
3081 | * Minimal symbol table for "shr1" image: | |
3082 | * ... | |
3083 | * shr1: code for shr1 (text symbol) | |
3084 | * ... | |
3085 | * | |
3086 | * So the code below is trying to detect if we are in the stub | |
3087 | * ("shr1" stub), and if so, find the real code ("shr1" trampoline), | |
3088 | * and if found, do the symbolization from the real-code address | |
3089 | * rather than the stub address. | |
3090 | * | |
3091 | * Assumptions being made about the minimal symbol table: | |
3092 | * 1. lookup_minimal_symbol_by_pc() will return a trampoline only | |
c378eb4e | 3093 | * if we're really in the trampoline.s If we're beyond it (say |
9af17804 | 3094 | * we're in "foo" in the above example), it'll have a closer |
c906108c SS |
3095 | * symbol (the "foo" text symbol for example) and will not |
3096 | * return the trampoline. | |
3097 | * 2. lookup_minimal_symbol_text() will find a real text symbol | |
3098 | * corresponding to the trampoline, and whose address will | |
c378eb4e | 3099 | * be different than the trampoline address. I put in a sanity |
c906108c SS |
3100 | * check for the address being the same, to avoid an |
3101 | * infinite recursion. | |
3102 | */ | |
c5aa993b | 3103 | msymbol = lookup_minimal_symbol_by_pc (pc); |
7cbd4a93 | 3104 | if (msymbol.minsym != NULL) |
60f62e2b | 3105 | if (msymbol.minsym->type () == mst_solib_trampoline) |
c5aa993b | 3106 | { |
77e371c0 | 3107 | struct bound_minimal_symbol mfunsym |
c9d95fa3 | 3108 | = lookup_minimal_symbol_text (msymbol.minsym->linkage_name (), |
77e371c0 TT |
3109 | NULL); |
3110 | ||
3111 | if (mfunsym.minsym == NULL) | |
c5aa993b JM |
3112 | /* I eliminated this warning since it is coming out |
3113 | * in the following situation: | |
3114 | * gdb shmain // test program with shared libraries | |
3115 | * (gdb) break shr1 // function in shared lib | |
3116 | * Warning: In stub for ... | |
9af17804 | 3117 | * In the above situation, the shared lib is not loaded yet, |
c5aa993b JM |
3118 | * so of course we can't find the real func/line info, |
3119 | * but the "break" still works, and the warning is annoying. | |
c378eb4e | 3120 | * So I commented out the warning. RT */ |
3e43a32a | 3121 | /* warning ("In stub for %s; unable to find real function/line info", |
987012b8 | 3122 | msymbol->linkage_name ()); */ |
c378eb4e | 3123 | ; |
c5aa993b | 3124 | /* fall through */ |
4aeddc50 SM |
3125 | else if (mfunsym.value_address () |
3126 | == msymbol.value_address ()) | |
c5aa993b | 3127 | /* Avoid infinite recursion */ |
c378eb4e | 3128 | /* See above comment about why warning is commented out. */ |
3e43a32a | 3129 | /* warning ("In stub for %s; unable to find real function/line info", |
987012b8 | 3130 | msymbol->linkage_name ()); */ |
c378eb4e | 3131 | ; |
c5aa993b JM |
3132 | /* fall through */ |
3133 | else | |
dd69bf7a KB |
3134 | { |
3135 | /* Detect an obvious case of infinite recursion. If this | |
3136 | should occur, we'd like to know about it, so error out, | |
3137 | fatally. */ | |
4aeddc50 | 3138 | if (mfunsym.value_address () == pc) |
f34652de | 3139 | internal_error (_("Infinite recursion detected in find_pc_sect_line;" |
dd69bf7a KB |
3140 | "please file a bug report")); |
3141 | ||
4aeddc50 | 3142 | return find_pc_line (mfunsym.value_address (), 0); |
dd69bf7a | 3143 | } |
c5aa993b | 3144 | } |
c906108c | 3145 | |
51abb421 PA |
3146 | symtab_and_line val; |
3147 | val.pspace = current_program_space; | |
c906108c | 3148 | |
43f3e411 DE |
3149 | cust = find_pc_sect_compunit_symtab (pc, section); |
3150 | if (cust == NULL) | |
c906108c | 3151 | { |
c378eb4e | 3152 | /* If no symbol information, return previous pc. */ |
c906108c SS |
3153 | if (notcurrent) |
3154 | pc++; | |
3155 | val.pc = pc; | |
3156 | return val; | |
3157 | } | |
3158 | ||
af39c5c8 | 3159 | bv = cust->blockvector (); |
1acc9dca | 3160 | struct objfile *objfile = cust->objfile (); |
c906108c SS |
3161 | |
3162 | /* Look at all the symtabs that share this blockvector. | |
3163 | They all have the same apriori range, that we found was right; | |
3164 | but they have different line tables. */ | |
3165 | ||
102cc235 | 3166 | for (symtab *iter_s : cust->filetabs ()) |
c906108c SS |
3167 | { |
3168 | /* Find the best line in this symtab. */ | |
5b607461 | 3169 | l = iter_s->linetable (); |
c906108c | 3170 | if (!l) |
c5aa993b | 3171 | continue; |
c906108c SS |
3172 | len = l->nitems; |
3173 | if (len <= 0) | |
3174 | { | |
3175 | /* I think len can be zero if the symtab lacks line numbers | |
3176 | (e.g. gcc -g1). (Either that or the LINETABLE is NULL; | |
3177 | I'm not sure which, and maybe it depends on the symbol | |
3178 | reader). */ | |
3179 | continue; | |
3180 | } | |
3181 | ||
3182 | prev = NULL; | |
c378eb4e | 3183 | item = l->item; /* Get first line info. */ |
c906108c SS |
3184 | |
3185 | /* Is this file's first line closer than the first lines of other files? | |
dda83cd7 | 3186 | If so, record this file, and its first line, as best alternate. */ |
1acc9dca | 3187 | if (item->pc (objfile) > pc |
0434c3ef | 3188 | && (!alt || item->unrelocated_pc () < alt->unrelocated_pc ())) |
c656bca5 | 3189 | alt = item; |
c906108c | 3190 | |
48e0f38c TT |
3191 | auto pc_compare = [] (const unrelocated_addr &comp_pc, |
3192 | const struct linetable_entry & lhs) | |
7cbe16e9 | 3193 | { |
0434c3ef | 3194 | return comp_pc < lhs.unrelocated_pc (); |
7cbe16e9 | 3195 | }; |
c906108c | 3196 | |
977a0c16 TT |
3197 | const linetable_entry *first = item; |
3198 | const linetable_entry *last = item + len; | |
48e0f38c TT |
3199 | item = (std::upper_bound |
3200 | (first, last, | |
3201 | unrelocated_addr (pc - objfile->text_section_offset ()), | |
3202 | pc_compare)); | |
7cbe16e9 | 3203 | if (item != first) |
d8cc8af6 | 3204 | prev = item - 1; /* Found a matching item. */ |
c906108c SS |
3205 | |
3206 | /* At this point, prev points at the line whose start addr is <= pc, and | |
dda83cd7 SM |
3207 | item points at the next line. If we ran off the end of the linetable |
3208 | (pc >= start of the last line), then prev == item. If pc < start of | |
3209 | the first line, prev will not be set. */ | |
c906108c SS |
3210 | |
3211 | /* Is this file's best line closer than the best in the other files? | |
dda83cd7 SM |
3212 | If so, record this file, and its best line, as best so far. Don't |
3213 | save prev if it represents the end of a function (i.e. line number | |
3214 | 0) instead of a real line. */ | |
c906108c | 3215 | |
0434c3ef TT |
3216 | if (prev && prev->line |
3217 | && (!best || prev->unrelocated_pc () > best->unrelocated_pc ())) | |
c906108c SS |
3218 | { |
3219 | best = prev; | |
43f3e411 | 3220 | best_symtab = iter_s; |
25d53da1 | 3221 | |
8c95582d AB |
3222 | /* If during the binary search we land on a non-statement entry, |
3223 | scan backward through entries at the same address to see if | |
3224 | there is an entry marked as is-statement. In theory this | |
3225 | duplication should have been removed from the line table | |
3226 | during construction, this is just a double check. If the line | |
3227 | table has had the duplication removed then this should be | |
3228 | pretty cheap. */ | |
3229 | if (!best->is_stmt) | |
3230 | { | |
977a0c16 | 3231 | const linetable_entry *tmp = best; |
0434c3ef TT |
3232 | while (tmp > first |
3233 | && (tmp - 1)->unrelocated_pc () == tmp->unrelocated_pc () | |
8c95582d AB |
3234 | && (tmp - 1)->line != 0 && !tmp->is_stmt) |
3235 | --tmp; | |
3236 | if (tmp->is_stmt) | |
3237 | best = tmp; | |
3238 | } | |
3239 | ||
25d53da1 | 3240 | /* Discard BEST_END if it's before the PC of the current BEST. */ |
1acc9dca | 3241 | if (best_end <= best->pc (objfile)) |
25d53da1 | 3242 | best_end = 0; |
c906108c | 3243 | } |
25d53da1 KB |
3244 | |
3245 | /* If another line (denoted by ITEM) is in the linetable and its | |
7cbe16e9 | 3246 | PC is after BEST's PC, but before the current BEST_END, then |
25d53da1 | 3247 | use ITEM's PC as the new best_end. */ |
0434c3ef TT |
3248 | if (best && item < last |
3249 | && item->unrelocated_pc () > best->unrelocated_pc () | |
1acc9dca TT |
3250 | && (best_end == 0 || best_end > item->pc (objfile))) |
3251 | best_end = item->pc (objfile); | |
c906108c SS |
3252 | } |
3253 | ||
3254 | if (!best_symtab) | |
3255 | { | |
e86e87f7 DJ |
3256 | /* If we didn't find any line number info, just return zeros. |
3257 | We used to return alt->line - 1 here, but that could be | |
3258 | anywhere; if we don't have line number info for this PC, | |
3259 | don't make some up. */ | |
3260 | val.pc = pc; | |
c906108c | 3261 | } |
e8717518 FF |
3262 | else if (best->line == 0) |
3263 | { | |
3264 | /* If our best fit is in a range of PC's for which no line | |
3265 | number info is available (line number is zero) then we didn't | |
c378eb4e | 3266 | find any valid line information. */ |
e8717518 FF |
3267 | val.pc = pc; |
3268 | } | |
c906108c SS |
3269 | else |
3270 | { | |
8c95582d | 3271 | val.is_stmt = best->is_stmt; |
c906108c SS |
3272 | val.symtab = best_symtab; |
3273 | val.line = best->line; | |
1acc9dca TT |
3274 | val.pc = best->pc (objfile); |
3275 | if (best_end && (!alt || best_end < alt->pc (objfile))) | |
c906108c SS |
3276 | val.end = best_end; |
3277 | else if (alt) | |
1acc9dca | 3278 | val.end = alt->pc (objfile); |
c906108c | 3279 | else |
63d609de | 3280 | val.end = bv->global_block ()->end (); |
c906108c SS |
3281 | } |
3282 | val.section = section; | |
3283 | return val; | |
3284 | } | |
3285 | ||
c378eb4e | 3286 | /* Backward compatibility (no section). */ |
c906108c SS |
3287 | |
3288 | struct symtab_and_line | |
fba45db2 | 3289 | find_pc_line (CORE_ADDR pc, int notcurrent) |
c906108c | 3290 | { |
714835d5 | 3291 | struct obj_section *section; |
c906108c SS |
3292 | |
3293 | section = find_pc_overlay (pc); | |
31a8f60f AB |
3294 | if (!pc_in_unmapped_range (pc, section)) |
3295 | return find_pc_sect_line (pc, section, notcurrent); | |
3296 | ||
3297 | /* If the original PC was an unmapped address then we translate this to a | |
3298 | mapped address in order to lookup the sal. However, as the user | |
3299 | passed us an unmapped address it makes more sense to return a result | |
3300 | that has the pc and end fields translated to unmapped addresses. */ | |
3301 | pc = overlay_mapped_address (pc, section); | |
3302 | symtab_and_line sal = find_pc_sect_line (pc, section, notcurrent); | |
3303 | sal.pc = overlay_unmapped_address (sal.pc, section); | |
3304 | sal.end = overlay_unmapped_address (sal.end, section); | |
3305 | return sal; | |
c906108c | 3306 | } |
34248c3a DE |
3307 | |
3308 | /* See symtab.h. */ | |
3309 | ||
3310 | struct symtab * | |
3311 | find_pc_line_symtab (CORE_ADDR pc) | |
3312 | { | |
3313 | struct symtab_and_line sal; | |
3314 | ||
3315 | /* This always passes zero for NOTCURRENT to find_pc_line. | |
3316 | There are currently no callers that ever pass non-zero. */ | |
3317 | sal = find_pc_line (pc, 0); | |
3318 | return sal.symtab; | |
3319 | } | |
c906108c | 3320 | \f |
c906108c SS |
3321 | /* Find line number LINE in any symtab whose name is the same as |
3322 | SYMTAB. | |
3323 | ||
3324 | If found, return the symtab that contains the linetable in which it was | |
3325 | found, set *INDEX to the index in the linetable of the best entry | |
ececd218 | 3326 | found, and set *EXACT_MATCH to true if the value returned is an |
c906108c SS |
3327 | exact match. |
3328 | ||
3329 | If not found, return NULL. */ | |
3330 | ||
50641945 | 3331 | struct symtab * |
5accd1a0 | 3332 | find_line_symtab (struct symtab *sym_tab, int line, |
ececd218 | 3333 | int *index, bool *exact_match) |
c906108c | 3334 | { |
6f43c46f | 3335 | int exact = 0; /* Initialized here to avoid a compiler warning. */ |
c906108c SS |
3336 | |
3337 | /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE | |
3338 | so far seen. */ | |
3339 | ||
3340 | int best_index; | |
977a0c16 | 3341 | const struct linetable *best_linetable; |
c906108c SS |
3342 | struct symtab *best_symtab; |
3343 | ||
3344 | /* First try looking it up in the given symtab. */ | |
5b607461 | 3345 | best_linetable = sym_tab->linetable (); |
5accd1a0 | 3346 | best_symtab = sym_tab; |
f8eba3c6 | 3347 | best_index = find_line_common (best_linetable, line, &exact, 0); |
c906108c SS |
3348 | if (best_index < 0 || !exact) |
3349 | { | |
3350 | /* Didn't find an exact match. So we better keep looking for | |
dda83cd7 SM |
3351 | another symtab with the same name. In the case of xcoff, |
3352 | multiple csects for one source file (produced by IBM's FORTRAN | |
3353 | compiler) produce multiple symtabs (this is unavoidable | |
3354 | assuming csects can be at arbitrary places in memory and that | |
3355 | the GLOBAL_BLOCK of a symtab has a begin and end address). */ | |
c906108c SS |
3356 | |
3357 | /* BEST is the smallest linenumber > LINE so far seen, | |
dda83cd7 SM |
3358 | or 0 if none has been seen so far. |
3359 | BEST_INDEX and BEST_LINETABLE identify the item for it. */ | |
c906108c SS |
3360 | int best; |
3361 | ||
c906108c SS |
3362 | if (best_index >= 0) |
3363 | best = best_linetable->item[best_index].line; | |
3364 | else | |
3365 | best = 0; | |
3366 | ||
2030c079 | 3367 | for (objfile *objfile : current_program_space->objfiles ()) |
4d080b46 | 3368 | objfile->expand_symtabs_with_fullname (symtab_to_fullname (sym_tab)); |
51432cca | 3369 | |
2030c079 | 3370 | for (objfile *objfile : current_program_space->objfiles ()) |
8b31193a | 3371 | { |
b669c953 | 3372 | for (compunit_symtab *cu : objfile->compunits ()) |
8b31193a | 3373 | { |
102cc235 | 3374 | for (symtab *s : cu->filetabs ()) |
8b31193a | 3375 | { |
977a0c16 | 3376 | const struct linetable *l; |
8b31193a TT |
3377 | int ind; |
3378 | ||
3379 | if (FILENAME_CMP (sym_tab->filename, s->filename) != 0) | |
3380 | continue; | |
3381 | if (FILENAME_CMP (symtab_to_fullname (sym_tab), | |
3382 | symtab_to_fullname (s)) != 0) | |
3383 | continue; | |
5b607461 | 3384 | l = s->linetable (); |
8b31193a TT |
3385 | ind = find_line_common (l, line, &exact, 0); |
3386 | if (ind >= 0) | |
3387 | { | |
3388 | if (exact) | |
3389 | { | |
3390 | best_index = ind; | |
3391 | best_linetable = l; | |
3392 | best_symtab = s; | |
3393 | goto done; | |
3394 | } | |
3395 | if (best == 0 || l->item[ind].line < best) | |
3396 | { | |
3397 | best = l->item[ind].line; | |
3398 | best_index = ind; | |
3399 | best_linetable = l; | |
3400 | best_symtab = s; | |
3401 | } | |
3402 | } | |
3403 | } | |
3404 | } | |
3405 | } | |
c906108c | 3406 | } |
c5aa993b | 3407 | done: |
c906108c SS |
3408 | if (best_index < 0) |
3409 | return NULL; | |
3410 | ||
3411 | if (index) | |
3412 | *index = best_index; | |
3413 | if (exact_match) | |
ececd218 | 3414 | *exact_match = (exact != 0); |
c906108c SS |
3415 | |
3416 | return best_symtab; | |
3417 | } | |
f8eba3c6 TT |
3418 | |
3419 | /* Given SYMTAB, returns all the PCs function in the symtab that | |
67d89901 TT |
3420 | exactly match LINE. Returns an empty vector if there are no exact |
3421 | matches, but updates BEST_ITEM in this case. */ | |
f8eba3c6 | 3422 | |
67d89901 | 3423 | std::vector<CORE_ADDR> |
f8eba3c6 | 3424 | find_pcs_for_symtab_line (struct symtab *symtab, int line, |
977a0c16 | 3425 | const linetable_entry **best_item) |
f8eba3c6 | 3426 | { |
c656bca5 | 3427 | int start = 0; |
67d89901 | 3428 | std::vector<CORE_ADDR> result; |
1acc9dca | 3429 | struct objfile *objfile = symtab->compunit ()->objfile (); |
f8eba3c6 TT |
3430 | |
3431 | /* First, collect all the PCs that are at this line. */ | |
3432 | while (1) | |
3433 | { | |
3434 | int was_exact; | |
3435 | int idx; | |
3436 | ||
5b607461 | 3437 | idx = find_line_common (symtab->linetable (), line, &was_exact, |
8435453b | 3438 | start); |
f8eba3c6 TT |
3439 | if (idx < 0) |
3440 | break; | |
3441 | ||
3442 | if (!was_exact) | |
3443 | { | |
977a0c16 | 3444 | const linetable_entry *item = &symtab->linetable ()->item[idx]; |
f8eba3c6 | 3445 | |
8c95582d AB |
3446 | if (*best_item == NULL |
3447 | || (item->line < (*best_item)->line && item->is_stmt)) | |
f8eba3c6 TT |
3448 | *best_item = item; |
3449 | ||
3450 | break; | |
3451 | } | |
3452 | ||
1acc9dca | 3453 | result.push_back (symtab->linetable ()->item[idx].pc (objfile)); |
f8eba3c6 TT |
3454 | start = idx + 1; |
3455 | } | |
3456 | ||
3457 | return result; | |
3458 | } | |
3459 | ||
c906108c SS |
3460 | \f |
3461 | /* Set the PC value for a given source file and line number and return true. | |
ececd218 | 3462 | Returns false for invalid line number (and sets the PC to 0). |
c906108c SS |
3463 | The source file is specified with a struct symtab. */ |
3464 | ||
ececd218 | 3465 | bool |
fba45db2 | 3466 | find_line_pc (struct symtab *symtab, int line, CORE_ADDR *pc) |
c906108c | 3467 | { |
977a0c16 | 3468 | const struct linetable *l; |
c906108c SS |
3469 | int ind; |
3470 | ||
3471 | *pc = 0; | |
3472 | if (symtab == 0) | |
ececd218 | 3473 | return false; |
c906108c SS |
3474 | |
3475 | symtab = find_line_symtab (symtab, line, &ind, NULL); | |
3476 | if (symtab != NULL) | |
3477 | { | |
5b607461 | 3478 | l = symtab->linetable (); |
1acc9dca | 3479 | *pc = l->item[ind].pc (symtab->compunit ()->objfile ()); |
ececd218 | 3480 | return true; |
c906108c SS |
3481 | } |
3482 | else | |
ececd218 | 3483 | return false; |
c906108c SS |
3484 | } |
3485 | ||
3486 | /* Find the range of pc values in a line. | |
3487 | Store the starting pc of the line into *STARTPTR | |
3488 | and the ending pc (start of next line) into *ENDPTR. | |
ececd218 CB |
3489 | Returns true to indicate success. |
3490 | Returns false if could not find the specified line. */ | |
c906108c | 3491 | |
ececd218 | 3492 | bool |
fba45db2 KB |
3493 | find_line_pc_range (struct symtab_and_line sal, CORE_ADDR *startptr, |
3494 | CORE_ADDR *endptr) | |
c906108c SS |
3495 | { |
3496 | CORE_ADDR startaddr; | |
3497 | struct symtab_and_line found_sal; | |
3498 | ||
3499 | startaddr = sal.pc; | |
c5aa993b | 3500 | if (startaddr == 0 && !find_line_pc (sal.symtab, sal.line, &startaddr)) |
ececd218 | 3501 | return false; |
c906108c SS |
3502 | |
3503 | /* This whole function is based on address. For example, if line 10 has | |
3504 | two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then | |
3505 | "info line *0x123" should say the line goes from 0x100 to 0x200 | |
3506 | and "info line *0x355" should say the line goes from 0x300 to 0x400. | |
3507 | This also insures that we never give a range like "starts at 0x134 | |
3508 | and ends at 0x12c". */ | |
3509 | ||
3510 | found_sal = find_pc_sect_line (startaddr, sal.section, 0); | |
3511 | if (found_sal.line != sal.line) | |
3512 | { | |
3513 | /* The specified line (sal) has zero bytes. */ | |
3514 | *startptr = found_sal.pc; | |
3515 | *endptr = found_sal.pc; | |
3516 | } | |
3517 | else | |
3518 | { | |
3519 | *startptr = found_sal.pc; | |
3520 | *endptr = found_sal.end; | |
3521 | } | |
ececd218 | 3522 | return true; |
c906108c SS |
3523 | } |
3524 | ||
3525 | /* Given a line table and a line number, return the index into the line | |
3526 | table for the pc of the nearest line whose number is >= the specified one. | |
3527 | Return -1 if none is found. The value is >= 0 if it is an index. | |
f8eba3c6 | 3528 | START is the index at which to start searching the line table. |
c906108c SS |
3529 | |
3530 | Set *EXACT_MATCH nonzero if the value returned is an exact match. */ | |
3531 | ||
3532 | static int | |
977a0c16 | 3533 | find_line_common (const linetable *l, int lineno, |
f8eba3c6 | 3534 | int *exact_match, int start) |
c906108c | 3535 | { |
52f0bd74 AC |
3536 | int i; |
3537 | int len; | |
c906108c SS |
3538 | |
3539 | /* BEST is the smallest linenumber > LINENO so far seen, | |
3540 | or 0 if none has been seen so far. | |
3541 | BEST_INDEX identifies the item for it. */ | |
3542 | ||
3543 | int best_index = -1; | |
3544 | int best = 0; | |
3545 | ||
b7589f7d DJ |
3546 | *exact_match = 0; |
3547 | ||
c906108c SS |
3548 | if (lineno <= 0) |
3549 | return -1; | |
3550 | if (l == 0) | |
3551 | return -1; | |
3552 | ||
3553 | len = l->nitems; | |
f8eba3c6 | 3554 | for (i = start; i < len; i++) |
c906108c | 3555 | { |
977a0c16 | 3556 | const linetable_entry *item = &(l->item[i]); |
c906108c | 3557 | |
8c95582d AB |
3558 | /* Ignore non-statements. */ |
3559 | if (!item->is_stmt) | |
3560 | continue; | |
3561 | ||
c906108c SS |
3562 | if (item->line == lineno) |
3563 | { | |
3564 | /* Return the first (lowest address) entry which matches. */ | |
3565 | *exact_match = 1; | |
3566 | return i; | |
3567 | } | |
3568 | ||
3569 | if (item->line > lineno && (best == 0 || item->line < best)) | |
3570 | { | |
3571 | best = item->line; | |
3572 | best_index = i; | |
3573 | } | |
3574 | } | |
3575 | ||
3576 | /* If we got here, we didn't get an exact match. */ | |
c906108c SS |
3577 | return best_index; |
3578 | } | |
3579 | ||
ececd218 | 3580 | bool |
fba45db2 | 3581 | find_pc_line_pc_range (CORE_ADDR pc, CORE_ADDR *startptr, CORE_ADDR *endptr) |
c906108c SS |
3582 | { |
3583 | struct symtab_and_line sal; | |
433759f7 | 3584 | |
c906108c SS |
3585 | sal = find_pc_line (pc, 0); |
3586 | *startptr = sal.pc; | |
3587 | *endptr = sal.end; | |
3588 | return sal.symtab != 0; | |
3589 | } | |
3590 | ||
cd2bb709 PA |
3591 | /* Helper for find_function_start_sal. Does most of the work, except |
3592 | setting the sal's symbol. */ | |
aab2f208 | 3593 | |
cd2bb709 PA |
3594 | static symtab_and_line |
3595 | find_function_start_sal_1 (CORE_ADDR func_addr, obj_section *section, | |
3596 | bool funfirstline) | |
aab2f208 | 3597 | { |
42ddae10 | 3598 | symtab_and_line sal = find_pc_sect_line (func_addr, section, 0); |
aab2f208 | 3599 | |
6e22494e | 3600 | if (funfirstline && sal.symtab != NULL |
c6159652 | 3601 | && (sal.symtab->compunit ()->locations_valid () |
1ee2e9f9 | 3602 | || sal.symtab->language () == language_asm)) |
6e22494e | 3603 | { |
3c86fae3 | 3604 | struct gdbarch *gdbarch = sal.symtab->compunit ()->objfile ()->arch (); |
141c5cc4 | 3605 | |
42ddae10 | 3606 | sal.pc = func_addr; |
141c5cc4 JK |
3607 | if (gdbarch_skip_entrypoint_p (gdbarch)) |
3608 | sal.pc = gdbarch_skip_entrypoint (gdbarch, sal.pc); | |
6e22494e JK |
3609 | return sal; |
3610 | } | |
3611 | ||
aab2f208 | 3612 | /* We always should have a line for the function start address. |
42ddae10 | 3613 | If we don't, something is odd. Create a plain SAL referring |
aab2f208 DE |
3614 | just the PC and hope that skip_prologue_sal (if requested) |
3615 | can find a line number for after the prologue. */ | |
42ddae10 | 3616 | if (sal.pc < func_addr) |
aab2f208 | 3617 | { |
51abb421 | 3618 | sal = {}; |
aab2f208 | 3619 | sal.pspace = current_program_space; |
42ddae10 | 3620 | sal.pc = func_addr; |
08be3fe3 | 3621 | sal.section = section; |
aab2f208 DE |
3622 | } |
3623 | ||
3624 | if (funfirstline) | |
3625 | skip_prologue_sal (&sal); | |
3626 | ||
3627 | return sal; | |
3628 | } | |
3629 | ||
42ddae10 PA |
3630 | /* See symtab.h. */ |
3631 | ||
cd2bb709 PA |
3632 | symtab_and_line |
3633 | find_function_start_sal (CORE_ADDR func_addr, obj_section *section, | |
3634 | bool funfirstline) | |
3635 | { | |
3636 | symtab_and_line sal | |
3637 | = find_function_start_sal_1 (func_addr, section, funfirstline); | |
3638 | ||
3639 | /* find_function_start_sal_1 does a linetable search, so it finds | |
3640 | the symtab and linenumber, but not a symbol. Fill in the | |
3641 | function symbol too. */ | |
3642 | sal.symbol = find_pc_sect_containing_function (sal.pc, sal.section); | |
3643 | ||
3644 | return sal; | |
3645 | } | |
3646 | ||
3647 | /* See symtab.h. */ | |
3648 | ||
42ddae10 PA |
3649 | symtab_and_line |
3650 | find_function_start_sal (symbol *sym, bool funfirstline) | |
3651 | { | |
42ddae10 | 3652 | symtab_and_line sal |
6395b628 | 3653 | = find_function_start_sal_1 (sym->value_block ()->entry_pc (), |
e19b2d94 | 3654 | sym->obj_section (sym->objfile ()), |
cd2bb709 | 3655 | funfirstline); |
42ddae10 PA |
3656 | sal.symbol = sym; |
3657 | return sal; | |
3658 | } | |
3659 | ||
3660 | ||
8c7a1ee8 EZ |
3661 | /* Given a function start address FUNC_ADDR and SYMTAB, find the first |
3662 | address for that function that has an entry in SYMTAB's line info | |
3663 | table. If such an entry cannot be found, return FUNC_ADDR | |
3664 | unaltered. */ | |
eca864fe | 3665 | |
70221824 | 3666 | static CORE_ADDR |
8c7a1ee8 EZ |
3667 | skip_prologue_using_lineinfo (CORE_ADDR func_addr, struct symtab *symtab) |
3668 | { | |
3669 | CORE_ADDR func_start, func_end; | |
977a0c16 | 3670 | const struct linetable *l; |
952a6d41 | 3671 | int i; |
8c7a1ee8 EZ |
3672 | |
3673 | /* Give up if this symbol has no lineinfo table. */ | |
5b607461 | 3674 | l = symtab->linetable (); |
8c7a1ee8 EZ |
3675 | if (l == NULL) |
3676 | return func_addr; | |
3677 | ||
3678 | /* Get the range for the function's PC values, or give up if we | |
3679 | cannot, for some reason. */ | |
3680 | if (!find_pc_partial_function (func_addr, NULL, &func_start, &func_end)) | |
3681 | return func_addr; | |
3682 | ||
1acc9dca TT |
3683 | struct objfile *objfile = symtab->compunit ()->objfile (); |
3684 | ||
8c7a1ee8 EZ |
3685 | /* Linetable entries are ordered by PC values, see the commentary in |
3686 | symtab.h where `struct linetable' is defined. Thus, the first | |
3687 | entry whose PC is in the range [FUNC_START..FUNC_END[ is the | |
3688 | address we are looking for. */ | |
3689 | for (i = 0; i < l->nitems; i++) | |
3690 | { | |
977a0c16 | 3691 | const linetable_entry *item = &(l->item[i]); |
1acc9dca | 3692 | CORE_ADDR item_pc = item->pc (objfile); |
8c7a1ee8 EZ |
3693 | |
3694 | /* Don't use line numbers of zero, they mark special entries in | |
3695 | the table. See the commentary on symtab.h before the | |
3696 | definition of struct linetable. */ | |
1acc9dca TT |
3697 | if (item->line > 0 && func_start <= item_pc && item_pc < func_end) |
3698 | return item_pc; | |
8c7a1ee8 EZ |
3699 | } |
3700 | ||
3701 | return func_addr; | |
3702 | } | |
3703 | ||
cc96ae7f LS |
3704 | /* Try to locate the address where a breakpoint should be placed past the |
3705 | prologue of function starting at FUNC_ADDR using the line table. | |
3706 | ||
3707 | Return the address associated with the first entry in the line-table for | |
3708 | the function starting at FUNC_ADDR which has prologue_end set to true if | |
3709 | such entry exist, otherwise return an empty optional. */ | |
3710 | ||
3711 | static gdb::optional<CORE_ADDR> | |
3712 | skip_prologue_using_linetable (CORE_ADDR func_addr) | |
3713 | { | |
3714 | CORE_ADDR start_pc, end_pc; | |
3715 | ||
3716 | if (!find_pc_partial_function (func_addr, nullptr, &start_pc, &end_pc)) | |
3717 | return {}; | |
3718 | ||
3719 | const struct symtab_and_line prologue_sal = find_pc_line (start_pc, 0); | |
3720 | if (prologue_sal.symtab != nullptr | |
3721 | && prologue_sal.symtab->language () != language_asm) | |
3722 | { | |
977a0c16 | 3723 | const linetable *linetable = prologue_sal.symtab->linetable (); |
cc96ae7f | 3724 | |
1acc9dca | 3725 | struct objfile *objfile = prologue_sal.symtab->compunit ()->objfile (); |
48e0f38c TT |
3726 | |
3727 | unrelocated_addr unrel_start | |
3728 | = unrelocated_addr (start_pc - objfile->text_section_offset ()); | |
3729 | unrelocated_addr unrel_end | |
3730 | = unrelocated_addr (end_pc - objfile->text_section_offset ()); | |
1acc9dca | 3731 | |
cc96ae7f | 3732 | auto it = std::lower_bound |
48e0f38c TT |
3733 | (linetable->item, linetable->item + linetable->nitems, unrel_start, |
3734 | [] (const linetable_entry <e, unrelocated_addr pc) | |
cc96ae7f | 3735 | { |
0434c3ef | 3736 | return lte.unrelocated_pc () < pc; |
cc96ae7f LS |
3737 | }); |
3738 | ||
3739 | for (; | |
48e0f38c | 3740 | (it < linetable->item + linetable->nitems |
0434c3ef | 3741 | && it->unrelocated_pc () < unrel_end); |
cc96ae7f LS |
3742 | it++) |
3743 | if (it->prologue_end) | |
1acc9dca | 3744 | return {it->pc (objfile)}; |
cc96ae7f LS |
3745 | } |
3746 | ||
3747 | return {}; | |
3748 | } | |
3749 | ||
059acae7 UW |
3750 | /* Adjust SAL to the first instruction past the function prologue. |
3751 | If the PC was explicitly specified, the SAL is not changed. | |
5b0e2db4 AB |
3752 | If the line number was explicitly specified then the SAL can still be |
3753 | updated, unless the language for SAL is assembler, in which case the SAL | |
3754 | will be left unchanged. | |
3755 | If SAL is already past the prologue, then do nothing. */ | |
eca864fe | 3756 | |
059acae7 UW |
3757 | void |
3758 | skip_prologue_sal (struct symtab_and_line *sal) | |
3759 | { | |
3760 | struct symbol *sym; | |
3761 | struct symtab_and_line start_sal; | |
8be455d7 | 3762 | CORE_ADDR pc, saved_pc; |
059acae7 UW |
3763 | struct obj_section *section; |
3764 | const char *name; | |
3765 | struct objfile *objfile; | |
3766 | struct gdbarch *gdbarch; | |
3977b71f | 3767 | const struct block *b, *function_block; |
8be455d7 | 3768 | int force_skip, skip; |
c906108c | 3769 | |
a4b411d6 | 3770 | /* Do not change the SAL if PC was specified explicitly. */ |
059acae7 UW |
3771 | if (sal->explicit_pc) |
3772 | return; | |
6c95b8df | 3773 | |
5b0e2db4 AB |
3774 | /* In assembly code, if the user asks for a specific line then we should |
3775 | not adjust the SAL. The user already has instruction level | |
3776 | visibility in this case, so selecting a line other than one requested | |
3777 | is likely to be the wrong choice. */ | |
3778 | if (sal->symtab != nullptr | |
3779 | && sal->explicit_line | |
1ee2e9f9 | 3780 | && sal->symtab->language () == language_asm) |
5b0e2db4 AB |
3781 | return; |
3782 | ||
5ed8105e PA |
3783 | scoped_restore_current_pspace_and_thread restore_pspace_thread; |
3784 | ||
059acae7 | 3785 | switch_to_program_space_and_thread (sal->pspace); |
6c95b8df | 3786 | |
059acae7 UW |
3787 | sym = find_pc_sect_function (sal->pc, sal->section); |
3788 | if (sym != NULL) | |
bccdca4a | 3789 | { |
e19b2d94 | 3790 | objfile = sym->objfile (); |
6395b628 | 3791 | pc = sym->value_block ()->entry_pc (); |
ebbc3a7d | 3792 | section = sym->obj_section (objfile); |
987012b8 | 3793 | name = sym->linkage_name (); |
c906108c | 3794 | } |
059acae7 UW |
3795 | else |
3796 | { | |
7c7b6655 | 3797 | struct bound_minimal_symbol msymbol |
dda83cd7 | 3798 | = lookup_minimal_symbol_by_pc_section (sal->pc, sal->section); |
433759f7 | 3799 | |
7c7b6655 | 3800 | if (msymbol.minsym == NULL) |
5ed8105e | 3801 | return; |
059acae7 | 3802 | |
7c7b6655 | 3803 | objfile = msymbol.objfile; |
4aeddc50 | 3804 | pc = msymbol.value_address (); |
ebbc3a7d | 3805 | section = msymbol.minsym->obj_section (objfile); |
c9d95fa3 | 3806 | name = msymbol.minsym->linkage_name (); |
059acae7 UW |
3807 | } |
3808 | ||
08feed99 | 3809 | gdbarch = objfile->arch (); |
059acae7 | 3810 | |
8be455d7 JK |
3811 | /* Process the prologue in two passes. In the first pass try to skip the |
3812 | prologue (SKIP is true) and verify there is a real need for it (indicated | |
3813 | by FORCE_SKIP). If no such reason was found run a second pass where the | |
3814 | prologue is not skipped (SKIP is false). */ | |
059acae7 | 3815 | |
8be455d7 JK |
3816 | skip = 1; |
3817 | force_skip = 1; | |
059acae7 | 3818 | |
8be455d7 JK |
3819 | /* Be conservative - allow direct PC (without skipping prologue) only if we |
3820 | have proven the CU (Compilation Unit) supports it. sal->SYMTAB does not | |
3821 | have to be set by the caller so we use SYM instead. */ | |
08be3fe3 | 3822 | if (sym != NULL |
4206d69e | 3823 | && sym->symtab ()->compunit ()->locations_valid ()) |
8be455d7 | 3824 | force_skip = 0; |
059acae7 | 3825 | |
8be455d7 JK |
3826 | saved_pc = pc; |
3827 | do | |
c906108c | 3828 | { |
8be455d7 | 3829 | pc = saved_pc; |
4309257c | 3830 | |
cc96ae7f | 3831 | /* Check if the compiler explicitly indicated where a breakpoint should |
287de656 | 3832 | be placed to skip the prologue. */ |
6109f7a3 | 3833 | if (!ignore_prologue_end_flag && skip) |
cc96ae7f LS |
3834 | { |
3835 | gdb::optional<CORE_ADDR> linetable_pc | |
3836 | = skip_prologue_using_linetable (pc); | |
3837 | if (linetable_pc) | |
3838 | { | |
3839 | pc = *linetable_pc; | |
3840 | start_sal = find_pc_sect_line (pc, section, 0); | |
3841 | force_skip = 1; | |
3842 | continue; | |
3843 | } | |
3844 | } | |
3845 | ||
8be455d7 JK |
3846 | /* If the function is in an unmapped overlay, use its unmapped LMA address, |
3847 | so that gdbarch_skip_prologue has something unique to work on. */ | |
3848 | if (section_is_overlay (section) && !section_is_mapped (section)) | |
3849 | pc = overlay_unmapped_address (pc, section); | |
3850 | ||
3851 | /* Skip "first line" of function (which is actually its prologue). */ | |
3852 | pc += gdbarch_deprecated_function_start_offset (gdbarch); | |
591a12a1 | 3853 | if (gdbarch_skip_entrypoint_p (gdbarch)) |
dda83cd7 | 3854 | pc = gdbarch_skip_entrypoint (gdbarch, pc); |
8be455d7 | 3855 | if (skip) |
46a62268 | 3856 | pc = gdbarch_skip_prologue_noexcept (gdbarch, pc); |
8be455d7 JK |
3857 | |
3858 | /* For overlays, map pc back into its mapped VMA range. */ | |
3859 | pc = overlay_mapped_address (pc, section); | |
3860 | ||
3861 | /* Calculate line number. */ | |
059acae7 | 3862 | start_sal = find_pc_sect_line (pc, section, 0); |
8be455d7 JK |
3863 | |
3864 | /* Check if gdbarch_skip_prologue left us in mid-line, and the next | |
3865 | line is still part of the same function. */ | |
3866 | if (skip && start_sal.pc != pc | |
6395b628 | 3867 | && (sym ? (sym->value_block ()->entry_pc () <= start_sal.end |
4b8791e1 | 3868 | && start_sal.end < sym->value_block()->end ()) |
7cbd4a93 TT |
3869 | : (lookup_minimal_symbol_by_pc_section (start_sal.end, section).minsym |
3870 | == lookup_minimal_symbol_by_pc_section (pc, section).minsym))) | |
8be455d7 JK |
3871 | { |
3872 | /* First pc of next line */ | |
3873 | pc = start_sal.end; | |
3874 | /* Recalculate the line number (might not be N+1). */ | |
3875 | start_sal = find_pc_sect_line (pc, section, 0); | |
3876 | } | |
3877 | ||
3878 | /* On targets with executable formats that don't have a concept of | |
3879 | constructors (ELF with .init has, PE doesn't), gcc emits a call | |
3880 | to `__main' in `main' between the prologue and before user | |
3881 | code. */ | |
3882 | if (gdbarch_skip_main_prologue_p (gdbarch) | |
7ccffd7c | 3883 | && name && strcmp_iw (name, "main") == 0) |
8be455d7 JK |
3884 | { |
3885 | pc = gdbarch_skip_main_prologue (gdbarch, pc); | |
3886 | /* Recalculate the line number (might not be N+1). */ | |
3887 | start_sal = find_pc_sect_line (pc, section, 0); | |
3888 | force_skip = 1; | |
3889 | } | |
4309257c | 3890 | } |
8be455d7 | 3891 | while (!force_skip && skip--); |
4309257c | 3892 | |
8c7a1ee8 EZ |
3893 | /* If we still don't have a valid source line, try to find the first |
3894 | PC in the lineinfo table that belongs to the same function. This | |
3895 | happens with COFF debug info, which does not seem to have an | |
3896 | entry in lineinfo table for the code after the prologue which has | |
3897 | no direct relation to source. For example, this was found to be | |
3898 | the case with the DJGPP target using "gcc -gcoff" when the | |
3899 | compiler inserted code after the prologue to make sure the stack | |
3900 | is aligned. */ | |
8be455d7 | 3901 | if (!force_skip && sym && start_sal.symtab == NULL) |
8c7a1ee8 | 3902 | { |
4206d69e | 3903 | pc = skip_prologue_using_lineinfo (pc, sym->symtab ()); |
8c7a1ee8 | 3904 | /* Recalculate the line number. */ |
059acae7 | 3905 | start_sal = find_pc_sect_line (pc, section, 0); |
8c7a1ee8 EZ |
3906 | } |
3907 | ||
059acae7 UW |
3908 | /* If we're already past the prologue, leave SAL unchanged. Otherwise |
3909 | forward SAL to the end of the prologue. */ | |
3910 | if (sal->pc >= pc) | |
3911 | return; | |
3912 | ||
3913 | sal->pc = pc; | |
3914 | sal->section = section; | |
059acae7 UW |
3915 | sal->symtab = start_sal.symtab; |
3916 | sal->line = start_sal.line; | |
3917 | sal->end = start_sal.end; | |
c906108c | 3918 | |
edb3359d DJ |
3919 | /* Check if we are now inside an inlined function. If we can, |
3920 | use the call site of the function instead. */ | |
059acae7 | 3921 | b = block_for_pc_sect (sal->pc, sal->section); |
edb3359d DJ |
3922 | function_block = NULL; |
3923 | while (b != NULL) | |
3924 | { | |
a4dfe747 | 3925 | if (b->function () != NULL && b->inlined_p ()) |
edb3359d | 3926 | function_block = b; |
6c00f721 | 3927 | else if (b->function () != NULL) |
edb3359d | 3928 | break; |
f135fe72 | 3929 | b = b->superblock (); |
edb3359d DJ |
3930 | } |
3931 | if (function_block != NULL | |
6c00f721 | 3932 | && function_block->function ()->line () != 0) |
edb3359d | 3933 | { |
6c00f721 SM |
3934 | sal->line = function_block->function ()->line (); |
3935 | sal->symtab = function_block->function ()->symtab (); | |
edb3359d | 3936 | } |
c906108c | 3937 | } |
50641945 | 3938 | |
f1f58506 DE |
3939 | /* Given PC at the function's start address, attempt to find the |
3940 | prologue end using SAL information. Return zero if the skip fails. | |
3941 | ||
3942 | A non-optimized prologue traditionally has one SAL for the function | |
3943 | and a second for the function body. A single line function has | |
3944 | them both pointing at the same line. | |
3945 | ||
3946 | An optimized prologue is similar but the prologue may contain | |
3947 | instructions (SALs) from the instruction body. Need to skip those | |
3948 | while not getting into the function body. | |
3949 | ||
3950 | The functions end point and an increasing SAL line are used as | |
3951 | indicators of the prologue's endpoint. | |
3952 | ||
3953 | This code is based on the function refine_prologue_limit | |
3954 | (found in ia64). */ | |
3955 | ||
3956 | CORE_ADDR | |
3957 | skip_prologue_using_sal (struct gdbarch *gdbarch, CORE_ADDR func_addr) | |
3958 | { | |
3959 | struct symtab_and_line prologue_sal; | |
3960 | CORE_ADDR start_pc; | |
3961 | CORE_ADDR end_pc; | |
3962 | const struct block *bl; | |
3963 | ||
3964 | /* Get an initial range for the function. */ | |
3965 | find_pc_partial_function (func_addr, NULL, &start_pc, &end_pc); | |
3966 | start_pc += gdbarch_deprecated_function_start_offset (gdbarch); | |
3967 | ||
3968 | prologue_sal = find_pc_line (start_pc, 0); | |
3969 | if (prologue_sal.line != 0) | |
3970 | { | |
3971 | /* For languages other than assembly, treat two consecutive line | |
3972 | entries at the same address as a zero-instruction prologue. | |
3973 | The GNU assembler emits separate line notes for each instruction | |
3974 | in a multi-instruction macro, but compilers generally will not | |
3975 | do this. */ | |
1ee2e9f9 | 3976 | if (prologue_sal.symtab->language () != language_asm) |
f1f58506 | 3977 | { |
1acc9dca TT |
3978 | struct objfile *objfile |
3979 | = prologue_sal.symtab->compunit ()->objfile (); | |
977a0c16 | 3980 | const linetable *linetable = prologue_sal.symtab->linetable (); |
e84060b4 | 3981 | gdb_assert (linetable->nitems > 0); |
f1f58506 DE |
3982 | int idx = 0; |
3983 | ||
3984 | /* Skip any earlier lines, and any end-of-sequence marker | |
3985 | from a previous function. */ | |
e84060b4 AB |
3986 | while (idx + 1 < linetable->nitems |
3987 | && (linetable->item[idx].pc (objfile) != prologue_sal.pc | |
3988 | || linetable->item[idx].line == 0)) | |
f1f58506 DE |
3989 | idx++; |
3990 | ||
e84060b4 | 3991 | if (idx + 1 < linetable->nitems |
f1f58506 | 3992 | && linetable->item[idx+1].line != 0 |
1acc9dca | 3993 | && linetable->item[idx+1].pc (objfile) == start_pc) |
f1f58506 DE |
3994 | return start_pc; |
3995 | } | |
3996 | ||
3997 | /* If there is only one sal that covers the entire function, | |
3998 | then it is probably a single line function, like | |
3999 | "foo(){}". */ | |
4000 | if (prologue_sal.end >= end_pc) | |
4001 | return 0; | |
4002 | ||
4003 | while (prologue_sal.end < end_pc) | |
4004 | { | |
4005 | struct symtab_and_line sal; | |
4006 | ||
4007 | sal = find_pc_line (prologue_sal.end, 0); | |
4008 | if (sal.line == 0) | |
4009 | break; | |
4010 | /* Assume that a consecutive SAL for the same (or larger) | |
4011 | line mark the prologue -> body transition. */ | |
4012 | if (sal.line >= prologue_sal.line) | |
4013 | break; | |
4014 | /* Likewise if we are in a different symtab altogether | |
4015 | (e.g. within a file included via #include). */ | |
4016 | if (sal.symtab != prologue_sal.symtab) | |
4017 | break; | |
4018 | ||
4019 | /* The line number is smaller. Check that it's from the | |
4020 | same function, not something inlined. If it's inlined, | |
4021 | then there is no point comparing the line numbers. */ | |
4022 | bl = block_for_pc (prologue_sal.end); | |
4023 | while (bl) | |
4024 | { | |
a4dfe747 | 4025 | if (bl->inlined_p ()) |
f1f58506 | 4026 | break; |
6c00f721 | 4027 | if (bl->function ()) |
f1f58506 DE |
4028 | { |
4029 | bl = NULL; | |
4030 | break; | |
4031 | } | |
f135fe72 | 4032 | bl = bl->superblock (); |
f1f58506 DE |
4033 | } |
4034 | if (bl != NULL) | |
4035 | break; | |
4036 | ||
4037 | /* The case in which compiler's optimizer/scheduler has | |
4038 | moved instructions into the prologue. We look ahead in | |
4039 | the function looking for address ranges whose | |
4040 | corresponding line number is less the first one that we | |
4041 | found for the function. This is more conservative then | |
4042 | refine_prologue_limit which scans a large number of SALs | |
4043 | looking for any in the prologue. */ | |
4044 | prologue_sal = sal; | |
4045 | } | |
4046 | } | |
4047 | ||
4048 | if (prologue_sal.end < end_pc) | |
4049 | /* Return the end of this line, or zero if we could not find a | |
4050 | line. */ | |
4051 | return prologue_sal.end; | |
4052 | else | |
4053 | /* Don't return END_PC, which is past the end of the function. */ | |
4054 | return prologue_sal.pc; | |
4055 | } | |
bf223d3e PA |
4056 | |
4057 | /* See symtab.h. */ | |
4058 | ||
4059 | symbol * | |
4060 | find_function_alias_target (bound_minimal_symbol msymbol) | |
4061 | { | |
4024cf2b PA |
4062 | CORE_ADDR func_addr; |
4063 | if (!msymbol_is_function (msymbol.objfile, msymbol.minsym, &func_addr)) | |
bf223d3e PA |
4064 | return NULL; |
4065 | ||
4024cf2b | 4066 | symbol *sym = find_pc_function (func_addr); |
bf223d3e | 4067 | if (sym != NULL |
66d7f48f | 4068 | && sym->aclass () == LOC_BLOCK |
6395b628 | 4069 | && sym->value_block ()->entry_pc () == func_addr) |
bf223d3e PA |
4070 | return sym; |
4071 | ||
4072 | return NULL; | |
4073 | } | |
4074 | ||
f1f58506 | 4075 | \f |
c906108c SS |
4076 | /* If P is of the form "operator[ \t]+..." where `...' is |
4077 | some legitimate operator text, return a pointer to the | |
4078 | beginning of the substring of the operator text. | |
4079 | Otherwise, return "". */ | |
eca864fe | 4080 | |
96142726 TT |
4081 | static const char * |
4082 | operator_chars (const char *p, const char **end) | |
c906108c SS |
4083 | { |
4084 | *end = ""; | |
8090b426 | 4085 | if (!startswith (p, CP_OPERATOR_STR)) |
c906108c | 4086 | return *end; |
8090b426 | 4087 | p += CP_OPERATOR_LEN; |
c906108c SS |
4088 | |
4089 | /* Don't get faked out by `operator' being part of a longer | |
4090 | identifier. */ | |
c5aa993b | 4091 | if (isalpha (*p) || *p == '_' || *p == '$' || *p == '\0') |
c906108c SS |
4092 | return *end; |
4093 | ||
4094 | /* Allow some whitespace between `operator' and the operator symbol. */ | |
4095 | while (*p == ' ' || *p == '\t') | |
4096 | p++; | |
4097 | ||
c378eb4e | 4098 | /* Recognize 'operator TYPENAME'. */ |
c906108c | 4099 | |
c5aa993b | 4100 | if (isalpha (*p) || *p == '_' || *p == '$') |
c906108c | 4101 | { |
96142726 | 4102 | const char *q = p + 1; |
433759f7 | 4103 | |
c5aa993b | 4104 | while (isalnum (*q) || *q == '_' || *q == '$') |
c906108c SS |
4105 | q++; |
4106 | *end = q; | |
4107 | return p; | |
4108 | } | |
4109 | ||
53e8ad3d MS |
4110 | while (*p) |
4111 | switch (*p) | |
4112 | { | |
4113 | case '\\': /* regexp quoting */ | |
4114 | if (p[1] == '*') | |
4115 | { | |
3e43a32a | 4116 | if (p[2] == '=') /* 'operator\*=' */ |
53e8ad3d MS |
4117 | *end = p + 3; |
4118 | else /* 'operator\*' */ | |
4119 | *end = p + 2; | |
4120 | return p; | |
4121 | } | |
4122 | else if (p[1] == '[') | |
4123 | { | |
4124 | if (p[2] == ']') | |
3e43a32a MS |
4125 | error (_("mismatched quoting on brackets, " |
4126 | "try 'operator\\[\\]'")); | |
53e8ad3d MS |
4127 | else if (p[2] == '\\' && p[3] == ']') |
4128 | { | |
4129 | *end = p + 4; /* 'operator\[\]' */ | |
4130 | return p; | |
4131 | } | |
4132 | else | |
8a3fe4f8 | 4133 | error (_("nothing is allowed between '[' and ']'")); |
53e8ad3d | 4134 | } |
9af17804 | 4135 | else |
53e8ad3d | 4136 | { |
85102364 | 4137 | /* Gratuitous quote: skip it and move on. */ |
53e8ad3d MS |
4138 | p++; |
4139 | continue; | |
4140 | } | |
4141 | break; | |
4142 | case '!': | |
4143 | case '=': | |
4144 | case '*': | |
4145 | case '/': | |
4146 | case '%': | |
4147 | case '^': | |
4148 | if (p[1] == '=') | |
4149 | *end = p + 2; | |
4150 | else | |
4151 | *end = p + 1; | |
4152 | return p; | |
4153 | case '<': | |
4154 | case '>': | |
4155 | case '+': | |
4156 | case '-': | |
4157 | case '&': | |
4158 | case '|': | |
4159 | if (p[0] == '-' && p[1] == '>') | |
4160 | { | |
c378eb4e | 4161 | /* Struct pointer member operator 'operator->'. */ |
53e8ad3d MS |
4162 | if (p[2] == '*') |
4163 | { | |
4164 | *end = p + 3; /* 'operator->*' */ | |
4165 | return p; | |
4166 | } | |
4167 | else if (p[2] == '\\') | |
4168 | { | |
4169 | *end = p + 4; /* Hopefully 'operator->\*' */ | |
4170 | return p; | |
4171 | } | |
4172 | else | |
4173 | { | |
4174 | *end = p + 2; /* 'operator->' */ | |
4175 | return p; | |
4176 | } | |
4177 | } | |
4178 | if (p[1] == '=' || p[1] == p[0]) | |
4179 | *end = p + 2; | |
4180 | else | |
4181 | *end = p + 1; | |
4182 | return p; | |
4183 | case '~': | |
4184 | case ',': | |
c5aa993b | 4185 | *end = p + 1; |
53e8ad3d MS |
4186 | return p; |
4187 | case '(': | |
4188 | if (p[1] != ')') | |
3e43a32a MS |
4189 | error (_("`operator ()' must be specified " |
4190 | "without whitespace in `()'")); | |
c5aa993b | 4191 | *end = p + 2; |
53e8ad3d MS |
4192 | return p; |
4193 | case '?': | |
4194 | if (p[1] != ':') | |
3e43a32a MS |
4195 | error (_("`operator ?:' must be specified " |
4196 | "without whitespace in `?:'")); | |
53e8ad3d MS |
4197 | *end = p + 2; |
4198 | return p; | |
4199 | case '[': | |
4200 | if (p[1] != ']') | |
3e43a32a MS |
4201 | error (_("`operator []' must be specified " |
4202 | "without whitespace in `[]'")); | |
53e8ad3d MS |
4203 | *end = p + 2; |
4204 | return p; | |
4205 | default: | |
8a3fe4f8 | 4206 | error (_("`operator %s' not supported"), p); |
53e8ad3d MS |
4207 | break; |
4208 | } | |
4209 | ||
c906108c SS |
4210 | *end = ""; |
4211 | return *end; | |
4212 | } | |
c906108c | 4213 | \f |
c5aa993b | 4214 | |
4a0788e0 | 4215 | /* See class declaration. */ |
9fdc877b | 4216 | |
4a0788e0 | 4217 | info_sources_filter::info_sources_filter (match_on match_type, |
287de656 | 4218 | const char *regexp) |
4a0788e0 AB |
4219 | : m_match_type (match_type), |
4220 | m_regexp (regexp) | |
9fdc877b | 4221 | { |
4a0788e0 AB |
4222 | /* Setup the compiled regular expression M_C_REGEXP based on M_REGEXP. */ |
4223 | if (m_regexp != nullptr && *m_regexp != '\0') | |
4224 | { | |
4225 | gdb_assert (m_regexp != nullptr); | |
28cd9371 | 4226 | |
4a0788e0 AB |
4227 | int cflags = REG_NOSUB; |
4228 | #ifdef HAVE_CASE_INSENSITIVE_FILE_SYSTEM | |
4229 | cflags |= REG_ICASE; | |
4230 | #endif | |
4231 | m_c_regexp.emplace (m_regexp, cflags, _("Invalid regexp")); | |
4232 | } | |
4233 | } | |
28cd9371 | 4234 | |
4a0788e0 | 4235 | /* See class declaration. */ |
9fdc877b | 4236 | |
4a0788e0 AB |
4237 | bool |
4238 | info_sources_filter::matches (const char *fullname) const | |
4239 | { | |
4240 | /* Does it match regexp? */ | |
4241 | if (m_c_regexp.has_value ()) | |
4242 | { | |
4243 | const char *to_match; | |
4244 | std::string dirname; | |
4245 | ||
4246 | switch (m_match_type) | |
287de656 SM |
4247 | { |
4248 | case match_on::DIRNAME: | |
4249 | dirname = ldirname (fullname); | |
4250 | to_match = dirname.c_str (); | |
4251 | break; | |
4252 | case match_on::BASENAME: | |
4253 | to_match = lbasename (fullname); | |
4254 | break; | |
4255 | case match_on::FULLNAME: | |
4256 | to_match = fullname; | |
4257 | break; | |
b6aeb717 TT |
4258 | default: |
4259 | gdb_assert_not_reached ("bad m_match_type"); | |
287de656 | 4260 | } |
4a0788e0 AB |
4261 | |
4262 | if (m_c_regexp->exec (to_match, 0, NULL, 0) != 0) | |
287de656 | 4263 | return false; |
4a0788e0 AB |
4264 | } |
4265 | ||
4266 | return true; | |
4267 | } | |
4268 | ||
4a0788e0 AB |
4269 | /* Data structure to maintain the state used for printing the results of |
4270 | the 'info sources' command. */ | |
4271 | ||
4272 | struct output_source_filename_data | |
4273 | { | |
4274 | /* Create an object for displaying the results of the 'info sources' | |
0e350a05 AB |
4275 | command to UIOUT. FILTER must remain valid and unchanged for the |
4276 | lifetime of this object as this object retains a reference to FILTER. */ | |
4277 | output_source_filename_data (struct ui_out *uiout, | |
4278 | const info_sources_filter &filter) | |
4279 | : m_filter (filter), | |
4280 | m_uiout (uiout) | |
4a0788e0 AB |
4281 | { /* Nothing. */ } |
4282 | ||
4283 | DISABLE_COPY_AND_ASSIGN (output_source_filename_data); | |
4284 | ||
4285 | /* Reset enough state of this object so we can match against a new set of | |
4286 | files. The existing regular expression is retained though. */ | |
4287 | void reset_output () | |
4288 | { | |
4289 | m_first = true; | |
4290 | m_filename_seen_cache.clear (); | |
4291 | } | |
4292 | ||
0e350a05 AB |
4293 | /* Worker for sources_info, outputs the file name formatted for either |
4294 | cli or mi (based on the current_uiout). In cli mode displays | |
4295 | FULLNAME with a comma separating this name from any previously | |
4296 | printed name (line breaks are added at the comma). In MI mode | |
4297 | outputs a tuple containing DISP_NAME (the files display name), | |
4298 | FULLNAME, and EXPANDED_P (true when this file is from a fully | |
4299 | expanded symtab, otherwise false). */ | |
4300 | void output (const char *disp_name, const char *fullname, bool expanded_p); | |
eca864fe | 4301 | |
f4655dee TT |
4302 | /* An overload suitable for use as a callback to |
4303 | quick_symbol_functions::map_symbol_filenames. */ | |
4304 | void operator() (const char *filename, const char *fullname) | |
4305 | { | |
0e350a05 AB |
4306 | /* The false here indicates that this file is from an unexpanded |
4307 | symtab. */ | |
4308 | output (filename, fullname, false); | |
f4655dee | 4309 | } |
4a0788e0 | 4310 | |
bd742128 AB |
4311 | /* Return true if at least one filename has been printed (after a call to |
4312 | output) since either this object was created, or the last call to | |
4313 | reset_output. */ | |
4314 | bool printed_filename_p () const | |
4315 | { | |
4316 | return !m_first; | |
4317 | } | |
4318 | ||
4a0788e0 AB |
4319 | private: |
4320 | ||
4321 | /* Flag of whether we're printing the first one. */ | |
4322 | bool m_first = true; | |
4323 | ||
4324 | /* Cache of what we've seen so far. */ | |
4325 | filename_seen_cache m_filename_seen_cache; | |
4326 | ||
4327 | /* How source filename should be filtered. */ | |
4328 | const info_sources_filter &m_filter; | |
0e350a05 AB |
4329 | |
4330 | /* The object to which output is sent. */ | |
4331 | struct ui_out *m_uiout; | |
f4655dee TT |
4332 | }; |
4333 | ||
4a0788e0 AB |
4334 | /* See comment in class declaration above. */ |
4335 | ||
f4655dee | 4336 | void |
0e350a05 AB |
4337 | output_source_filename_data::output (const char *disp_name, |
4338 | const char *fullname, | |
4339 | bool expanded_p) | |
c94fdfd0 EZ |
4340 | { |
4341 | /* Since a single source file can result in several partial symbol | |
4342 | tables, we need to avoid printing it more than once. Note: if | |
4343 | some of the psymtabs are read in and some are not, it gets | |
4344 | printed both under "Source files for which symbols have been | |
4345 | read" and "Source files for which symbols will be read in on | |
4346 | demand". I consider this a reasonable way to deal with the | |
4347 | situation. I'm not sure whether this can also happen for | |
4348 | symtabs; it doesn't hurt to check. */ | |
4349 | ||
4a0788e0 | 4350 | /* Was NAME already seen? If so, then don't print it again. */ |
0e350a05 | 4351 | if (m_filename_seen_cache.seen (fullname)) |
4a0788e0 | 4352 | return; |
28cd9371 | 4353 | |
4a0788e0 | 4354 | /* If the filter rejects this file then don't print it. */ |
0e350a05 | 4355 | if (!m_filter.matches (fullname)) |
4a0788e0 | 4356 | return; |
28cd9371 | 4357 | |
0e350a05 AB |
4358 | ui_out_emit_tuple ui_emitter (m_uiout, nullptr); |
4359 | ||
28cd9371 | 4360 | /* Print it and reset *FIRST. */ |
4a0788e0 | 4361 | if (!m_first) |
0e350a05 | 4362 | m_uiout->text (", "); |
4a0788e0 | 4363 | m_first = false; |
c906108c | 4364 | |
1285ce86 | 4365 | m_uiout->wrap_hint (0); |
0e350a05 AB |
4366 | if (m_uiout->is_mi_like_p ()) |
4367 | { | |
4368 | m_uiout->field_string ("file", disp_name, file_name_style.style ()); | |
4369 | if (fullname != nullptr) | |
4370 | m_uiout->field_string ("fullname", fullname, | |
4371 | file_name_style.style ()); | |
4372 | m_uiout->field_string ("debug-fully-read", | |
4373 | (expanded_p ? "true" : "false")); | |
4374 | } | |
4375 | else | |
4376 | { | |
4377 | if (fullname == nullptr) | |
4378 | fullname = disp_name; | |
4379 | m_uiout->field_string ("fullname", fullname, | |
4380 | file_name_style.style ()); | |
4381 | } | |
c5aa993b | 4382 | } |
c906108c | 4383 | |
4a0788e0 AB |
4384 | /* For the 'info sources' command, what part of the file names should we be |
4385 | matching the user supplied regular expression against? */ | |
4386 | ||
4387 | struct filename_partial_match_opts | |
4388 | { | |
4389 | /* Only match the directory name part. */ | |
4390 | bool dirname = false; | |
4391 | ||
4392 | /* Only match the basename part. */ | |
4393 | bool basename = false; | |
4394 | }; | |
4395 | ||
28cd9371 PW |
4396 | using isrc_flag_option_def |
4397 | = gdb::option::flag_option_def<filename_partial_match_opts>; | |
4398 | ||
4399 | static const gdb::option::option_def info_sources_option_defs[] = { | |
4400 | ||
4401 | isrc_flag_option_def { | |
4402 | "dirname", | |
4403 | [] (filename_partial_match_opts *opts) { return &opts->dirname; }, | |
4404 | N_("Show only the files having a dirname matching REGEXP."), | |
4405 | }, | |
4406 | ||
4407 | isrc_flag_option_def { | |
4408 | "basename", | |
4409 | [] (filename_partial_match_opts *opts) { return &opts->basename; }, | |
4410 | N_("Show only the files having a basename matching REGEXP."), | |
4411 | }, | |
4412 | ||
4413 | }; | |
4414 | ||
4415 | /* Create an option_def_group for the "info sources" options, with | |
4416 | ISRC_OPTS as context. */ | |
4417 | ||
4418 | static inline gdb::option::option_def_group | |
4419 | make_info_sources_options_def_group (filename_partial_match_opts *isrc_opts) | |
4420 | { | |
4421 | return {{info_sources_option_defs}, isrc_opts}; | |
4422 | } | |
4423 | ||
28cd9371 PW |
4424 | /* Completer for "info sources". */ |
4425 | ||
4426 | static void | |
4427 | info_sources_command_completer (cmd_list_element *ignore, | |
4428 | completion_tracker &tracker, | |
4429 | const char *text, const char *word) | |
4430 | { | |
4431 | const auto group = make_info_sources_options_def_group (nullptr); | |
4432 | if (gdb::option::complete_options | |
4433 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
4434 | return; | |
4435 | } | |
4436 | ||
0e350a05 AB |
4437 | /* See symtab.h. */ |
4438 | ||
4439 | void | |
4440 | info_sources_worker (struct ui_out *uiout, | |
1fb1ce02 | 4441 | bool group_by_objfile, |
0e350a05 AB |
4442 | const info_sources_filter &filter) |
4443 | { | |
4444 | output_source_filename_data data (uiout, filter); | |
4445 | ||
4446 | ui_out_emit_list results_emitter (uiout, "files"); | |
4447 | gdb::optional<ui_out_emit_tuple> output_tuple; | |
4448 | gdb::optional<ui_out_emit_list> sources_list; | |
4449 | ||
bd742128 | 4450 | gdb_assert (group_by_objfile || uiout->is_mi_like_p ()); |
0e350a05 AB |
4451 | |
4452 | for (objfile *objfile : current_program_space->objfiles ()) | |
4453 | { | |
1fb1ce02 AB |
4454 | if (group_by_objfile) |
4455 | { | |
4456 | output_tuple.emplace (uiout, nullptr); | |
972f7a4b TT |
4457 | uiout->field_string ("filename", objfile_name (objfile), |
4458 | file_name_style.style ()); | |
bd742128 | 4459 | uiout->text (":\n"); |
1fb1ce02 | 4460 | bool debug_fully_readin = !objfile->has_unexpanded_symtabs (); |
bd742128 | 4461 | if (uiout->is_mi_like_p ()) |
1fb1ce02 | 4462 | { |
bd742128 AB |
4463 | const char *debug_info_state; |
4464 | if (objfile_has_symbols (objfile)) | |
4465 | { | |
4466 | if (debug_fully_readin) | |
4467 | debug_info_state = "fully-read"; | |
4468 | else | |
4469 | debug_info_state = "partially-read"; | |
4470 | } | |
1fb1ce02 | 4471 | else |
bd742128 AB |
4472 | debug_info_state = "none"; |
4473 | current_uiout->field_string ("debug-info", debug_info_state); | |
1fb1ce02 AB |
4474 | } |
4475 | else | |
bd742128 AB |
4476 | { |
4477 | if (!debug_fully_readin) | |
4478 | uiout->text ("(Full debug information has not yet been read " | |
4479 | "for this file.)\n"); | |
4480 | if (!objfile_has_symbols (objfile)) | |
4481 | uiout->text ("(Objfile has no debug information.)\n"); | |
4482 | uiout->text ("\n"); | |
4483 | } | |
1fb1ce02 AB |
4484 | sources_list.emplace (uiout, "sources"); |
4485 | } | |
4486 | ||
0e350a05 AB |
4487 | for (compunit_symtab *cu : objfile->compunits ()) |
4488 | { | |
102cc235 | 4489 | for (symtab *s : cu->filetabs ()) |
0e350a05 AB |
4490 | { |
4491 | const char *file = symtab_to_filename_for_display (s); | |
4492 | const char *fullname = symtab_to_fullname (s); | |
4493 | data.output (file, fullname, true); | |
4494 | } | |
4495 | } | |
1fb1ce02 AB |
4496 | |
4497 | if (group_by_objfile) | |
4498 | { | |
4499 | objfile->map_symbol_filenames (data, true /* need_fullname */); | |
bd742128 AB |
4500 | if (data.printed_filename_p ()) |
4501 | uiout->text ("\n\n"); | |
1fb1ce02 AB |
4502 | data.reset_output (); |
4503 | sources_list.reset (); | |
4504 | output_tuple.reset (); | |
4505 | } | |
0e350a05 AB |
4506 | } |
4507 | ||
1fb1ce02 AB |
4508 | if (!group_by_objfile) |
4509 | { | |
1fb1ce02 AB |
4510 | data.reset_output (); |
4511 | map_symbol_filenames (data, true /*need_fullname*/); | |
1fb1ce02 | 4512 | } |
0e350a05 AB |
4513 | } |
4514 | ||
4a0788e0 AB |
4515 | /* Implement the 'info sources' command. */ |
4516 | ||
28cd9371 PW |
4517 | static void |
4518 | info_sources_command (const char *args, int from_tty) | |
c906108c | 4519 | { |
c906108c | 4520 | if (!have_full_symbols () && !have_partial_symbols ()) |
4a0788e0 | 4521 | error (_("No symbol table is loaded. Use the \"file\" command.")); |
28cd9371 | 4522 | |
4a0788e0 AB |
4523 | filename_partial_match_opts match_opts; |
4524 | auto group = make_info_sources_options_def_group (&match_opts); | |
28cd9371 PW |
4525 | gdb::option::process_options |
4526 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_ERROR, group); | |
9fdc877b | 4527 | |
4a0788e0 AB |
4528 | if (match_opts.dirname && match_opts.basename) |
4529 | error (_("You cannot give both -basename and -dirname to 'info sources'.")); | |
c906108c | 4530 | |
4a0788e0 | 4531 | const char *regex = nullptr; |
0e350a05 | 4532 | if (args != NULL && *args != '\000') |
4a0788e0 | 4533 | regex = args; |
28cd9371 | 4534 | |
4a0788e0 AB |
4535 | if ((match_opts.dirname || match_opts.basename) && regex == nullptr) |
4536 | error (_("Missing REGEXP for 'info sources'.")); | |
28cd9371 | 4537 | |
4a0788e0 AB |
4538 | info_sources_filter::match_on match_type; |
4539 | if (match_opts.dirname) | |
4540 | match_type = info_sources_filter::match_on::DIRNAME; | |
4541 | else if (match_opts.basename) | |
4542 | match_type = info_sources_filter::match_on::BASENAME; | |
28cd9371 | 4543 | else |
4a0788e0 AB |
4544 | match_type = info_sources_filter::match_on::FULLNAME; |
4545 | ||
4546 | info_sources_filter filter (match_type, regex); | |
bd742128 | 4547 | info_sources_worker (current_uiout, true, filter); |
c906108c SS |
4548 | } |
4549 | ||
470c0b1c AB |
4550 | /* Compare FILE against all the entries of FILENAMES. If BASENAMES is |
4551 | true compare only lbasename of FILENAMES. */ | |
fbd9ab74 | 4552 | |
470c0b1c AB |
4553 | static bool |
4554 | file_matches (const char *file, const std::vector<const char *> &filenames, | |
4555 | bool basenames) | |
c906108c | 4556 | { |
470c0b1c AB |
4557 | if (filenames.empty ()) |
4558 | return true; | |
c906108c | 4559 | |
470c0b1c | 4560 | for (const char *name : filenames) |
c906108c | 4561 | { |
470c0b1c AB |
4562 | name = (basenames ? lbasename (name) : name); |
4563 | if (compare_filenames_for_search (file, name)) | |
4564 | return true; | |
c906108c | 4565 | } |
470c0b1c AB |
4566 | |
4567 | return false; | |
c906108c SS |
4568 | } |
4569 | ||
f97a63c5 AB |
4570 | /* Helper function for std::sort on symbol_search objects. Can only sort |
4571 | symbols, not minimal symbols. */ | |
eca864fe | 4572 | |
b9c04fb2 TT |
4573 | int |
4574 | symbol_search::compare_search_syms (const symbol_search &sym_a, | |
4575 | const symbol_search &sym_b) | |
434d2d4f | 4576 | { |
b52109bc DE |
4577 | int c; |
4578 | ||
4206d69e TT |
4579 | c = FILENAME_CMP (sym_a.symbol->symtab ()->filename, |
4580 | sym_b.symbol->symtab ()->filename); | |
b52109bc DE |
4581 | if (c != 0) |
4582 | return c; | |
434d2d4f | 4583 | |
b9c04fb2 TT |
4584 | if (sym_a.block != sym_b.block) |
4585 | return sym_a.block - sym_b.block; | |
b52109bc | 4586 | |
987012b8 | 4587 | return strcmp (sym_a.symbol->print_name (), sym_b.symbol->print_name ()); |
434d2d4f DJ |
4588 | } |
4589 | ||
12615cba PW |
4590 | /* Returns true if the type_name of symbol_type of SYM matches TREG. |
4591 | If SYM has no symbol_type or symbol_name, returns false. */ | |
4592 | ||
4593 | bool | |
4594 | treg_matches_sym_type_name (const compiled_regex &treg, | |
4595 | const struct symbol *sym) | |
4596 | { | |
4597 | struct type *sym_type; | |
4598 | std::string printed_sym_type_name; | |
4599 | ||
b1e678d9 AB |
4600 | symbol_lookup_debug_printf_v ("treg_matches_sym_type_name, sym %s", |
4601 | sym->natural_name ()); | |
12615cba | 4602 | |
5f9c5a63 | 4603 | sym_type = sym->type (); |
12615cba PW |
4604 | if (sym_type == NULL) |
4605 | return false; | |
4606 | ||
43d397ca PW |
4607 | { |
4608 | scoped_switch_to_sym_language_if_auto l (sym); | |
12615cba | 4609 | |
12615cba | 4610 | printed_sym_type_name = type_to_string (sym_type); |
43d397ca PW |
4611 | } |
4612 | ||
b1e678d9 AB |
4613 | symbol_lookup_debug_printf_v ("sym_type_name %s", |
4614 | printed_sym_type_name.c_str ()); | |
12615cba PW |
4615 | |
4616 | if (printed_sym_type_name.empty ()) | |
4617 | return false; | |
4618 | ||
4619 | return treg.exec (printed_sym_type_name.c_str (), 0, NULL, 0) == 0; | |
4620 | } | |
4621 | ||
f97a63c5 AB |
4622 | /* See symtab.h. */ |
4623 | ||
4624 | bool | |
4625 | global_symbol_searcher::is_suitable_msymbol | |
4626 | (const enum search_domain kind, const minimal_symbol *msymbol) | |
4627 | { | |
60f62e2b | 4628 | switch (msymbol->type ()) |
f97a63c5 AB |
4629 | { |
4630 | case mst_data: | |
4631 | case mst_bss: | |
4632 | case mst_file_data: | |
4633 | case mst_file_bss: | |
4634 | return kind == VARIABLES_DOMAIN; | |
4635 | case mst_text: | |
4636 | case mst_file_text: | |
4637 | case mst_solib_trampoline: | |
4638 | case mst_text_gnu_ifunc: | |
4639 | return kind == FUNCTIONS_DOMAIN; | |
4640 | default: | |
4641 | return false; | |
4642 | } | |
4643 | } | |
4644 | ||
4645 | /* See symtab.h. */ | |
4646 | ||
4647 | bool | |
4648 | global_symbol_searcher::expand_symtabs | |
4649 | (objfile *objfile, const gdb::optional<compiled_regex> &preg) const | |
4650 | { | |
4651 | enum search_domain kind = m_kind; | |
4652 | bool found_msymbol = false; | |
4653 | ||
c5a9fcdf TT |
4654 | auto do_file_match = [&] (const char *filename, bool basenames) |
4655 | { | |
4656 | return file_matches (filename, filenames, basenames); | |
4657 | }; | |
4658 | gdb::function_view<expand_symtabs_file_matcher_ftype> file_matcher = nullptr; | |
4659 | if (!filenames.empty ()) | |
4660 | file_matcher = do_file_match; | |
4661 | ||
4d080b46 | 4662 | objfile->expand_symtabs_matching |
c5a9fcdf | 4663 | (file_matcher, |
4d080b46 TT |
4664 | &lookup_name_info::match_any (), |
4665 | [&] (const char *symname) | |
4666 | { | |
4667 | return (!preg.has_value () | |
4668 | || preg->exec (symname, 0, NULL, 0) == 0); | |
4669 | }, | |
4670 | NULL, | |
03a8ea51 | 4671 | SEARCH_GLOBAL_BLOCK | SEARCH_STATIC_BLOCK, |
3bfa51a7 | 4672 | UNDEF_DOMAIN, |
4d080b46 | 4673 | kind); |
f97a63c5 AB |
4674 | |
4675 | /* Here, we search through the minimal symbol tables for functions and | |
4676 | variables that match, and force their symbols to be read. This is in | |
4677 | particular necessary for demangled variable names, which are no longer | |
4678 | put into the partial symbol tables. The symbol will then be found | |
4679 | during the scan of symtabs later. | |
4680 | ||
4681 | For functions, find_pc_symtab should succeed if we have debug info for | |
4682 | the function, for variables we have to call | |
4683 | lookup_symbol_in_objfile_from_linkage_name to determine if the | |
4684 | variable has debug info. If the lookup fails, set found_msymbol so | |
4685 | that we will rescan to print any matching symbols without debug info. | |
4686 | We only search the objfile the msymbol came from, we no longer search | |
4687 | all objfiles. In large programs (1000s of shared libs) searching all | |
4688 | objfiles is not worth the pain. */ | |
4689 | if (filenames.empty () | |
4690 | && (kind == VARIABLES_DOMAIN || kind == FUNCTIONS_DOMAIN)) | |
4691 | { | |
4692 | for (minimal_symbol *msymbol : objfile->msymbols ()) | |
4693 | { | |
4694 | QUIT; | |
4695 | ||
4696 | if (msymbol->created_by_gdb) | |
4697 | continue; | |
4698 | ||
4699 | if (is_suitable_msymbol (kind, msymbol)) | |
4700 | { | |
4701 | if (!preg.has_value () | |
4702 | || preg->exec (msymbol->natural_name (), 0, | |
4703 | NULL, 0) == 0) | |
4704 | { | |
4705 | /* An important side-effect of these lookup functions is | |
4706 | to expand the symbol table if msymbol is found, later | |
4707 | in the process we will add matching symbols or | |
4708 | msymbols to the results list, and that requires that | |
4709 | the symbols tables are expanded. */ | |
4710 | if (kind == FUNCTIONS_DOMAIN | |
4711 | ? (find_pc_compunit_symtab | |
4aeddc50 | 4712 | (msymbol->value_address (objfile)) == NULL) |
f97a63c5 AB |
4713 | : (lookup_symbol_in_objfile_from_linkage_name |
4714 | (objfile, msymbol->linkage_name (), | |
4715 | VAR_DOMAIN) | |
4716 | .symbol == NULL)) | |
4717 | found_msymbol = true; | |
4718 | } | |
4719 | } | |
4720 | } | |
4721 | } | |
4722 | ||
4723 | return found_msymbol; | |
4724 | } | |
4725 | ||
4726 | /* See symtab.h. */ | |
4727 | ||
c2512106 | 4728 | bool |
f97a63c5 AB |
4729 | global_symbol_searcher::add_matching_symbols |
4730 | (objfile *objfile, | |
4731 | const gdb::optional<compiled_regex> &preg, | |
4732 | const gdb::optional<compiled_regex> &treg, | |
c2512106 | 4733 | std::set<symbol_search> *result_set) const |
f97a63c5 AB |
4734 | { |
4735 | enum search_domain kind = m_kind; | |
4736 | ||
4737 | /* Add matching symbols (if not already present). */ | |
4738 | for (compunit_symtab *cust : objfile->compunits ()) | |
4739 | { | |
af39c5c8 | 4740 | const struct blockvector *bv = cust->blockvector (); |
f97a63c5 AB |
4741 | |
4742 | for (block_enum block : { GLOBAL_BLOCK, STATIC_BLOCK }) | |
4743 | { | |
63d609de | 4744 | const struct block *b = bv->block (block); |
f97a63c5 | 4745 | |
548a89df | 4746 | for (struct symbol *sym : block_iterator_range (b)) |
f97a63c5 | 4747 | { |
4206d69e | 4748 | struct symtab *real_symtab = sym->symtab (); |
f97a63c5 AB |
4749 | |
4750 | QUIT; | |
4751 | ||
4752 | /* Check first sole REAL_SYMTAB->FILENAME. It does | |
4753 | not need to be a substring of symtab_to_fullname as | |
4754 | it may contain "./" etc. */ | |
4755 | if ((file_matches (real_symtab->filename, filenames, false) | |
4756 | || ((basenames_may_differ | |
4757 | || file_matches (lbasename (real_symtab->filename), | |
4758 | filenames, true)) | |
4759 | && file_matches (symtab_to_fullname (real_symtab), | |
4760 | filenames, false))) | |
4761 | && ((!preg.has_value () | |
4762 | || preg->exec (sym->natural_name (), 0, | |
4763 | NULL, 0) == 0) | |
4764 | && ((kind == VARIABLES_DOMAIN | |
66d7f48f SM |
4765 | && sym->aclass () != LOC_TYPEDEF |
4766 | && sym->aclass () != LOC_UNRESOLVED | |
4767 | && sym->aclass () != LOC_BLOCK | |
f97a63c5 AB |
4768 | /* LOC_CONST can be used for more than |
4769 | just enums, e.g., c++ static const | |
4770 | members. We only want to skip enums | |
4771 | here. */ | |
66d7f48f | 4772 | && !(sym->aclass () == LOC_CONST |
5f9c5a63 | 4773 | && (sym->type ()->code () |
f97a63c5 AB |
4774 | == TYPE_CODE_ENUM)) |
4775 | && (!treg.has_value () | |
4776 | || treg_matches_sym_type_name (*treg, sym))) | |
4777 | || (kind == FUNCTIONS_DOMAIN | |
66d7f48f | 4778 | && sym->aclass () == LOC_BLOCK |
f97a63c5 AB |
4779 | && (!treg.has_value () |
4780 | || treg_matches_sym_type_name (*treg, | |
4781 | sym))) | |
4782 | || (kind == TYPES_DOMAIN | |
66d7f48f | 4783 | && sym->aclass () == LOC_TYPEDEF |
6c9c307c | 4784 | && sym->domain () != MODULE_DOMAIN) |
f97a63c5 | 4785 | || (kind == MODULES_DOMAIN |
6c9c307c | 4786 | && sym->domain () == MODULE_DOMAIN |
5d0027b9 | 4787 | && sym->line () != 0)))) |
f97a63c5 | 4788 | { |
c2512106 AB |
4789 | if (result_set->size () < m_max_search_results) |
4790 | { | |
4791 | /* Match, insert if not already in the results. */ | |
4792 | symbol_search ss (block, sym); | |
4793 | if (result_set->find (ss) == result_set->end ()) | |
4794 | result_set->insert (ss); | |
4795 | } | |
4796 | else | |
4797 | return false; | |
f97a63c5 AB |
4798 | } |
4799 | } | |
4800 | } | |
4801 | } | |
c2512106 AB |
4802 | |
4803 | return true; | |
f97a63c5 AB |
4804 | } |
4805 | ||
4806 | /* See symtab.h. */ | |
4807 | ||
c2512106 | 4808 | bool |
f97a63c5 AB |
4809 | global_symbol_searcher::add_matching_msymbols |
4810 | (objfile *objfile, const gdb::optional<compiled_regex> &preg, | |
4811 | std::vector<symbol_search> *results) const | |
4812 | { | |
4813 | enum search_domain kind = m_kind; | |
4814 | ||
4815 | for (minimal_symbol *msymbol : objfile->msymbols ()) | |
4816 | { | |
4817 | QUIT; | |
4818 | ||
4819 | if (msymbol->created_by_gdb) | |
4820 | continue; | |
4821 | ||
4822 | if (is_suitable_msymbol (kind, msymbol)) | |
4823 | { | |
4824 | if (!preg.has_value () | |
4825 | || preg->exec (msymbol->natural_name (), 0, | |
4826 | NULL, 0) == 0) | |
4827 | { | |
4828 | /* For functions we can do a quick check of whether the | |
4829 | symbol might be found via find_pc_symtab. */ | |
4830 | if (kind != FUNCTIONS_DOMAIN | |
4831 | || (find_pc_compunit_symtab | |
4aeddc50 | 4832 | (msymbol->value_address (objfile)) == NULL)) |
f97a63c5 AB |
4833 | { |
4834 | if (lookup_symbol_in_objfile_from_linkage_name | |
4835 | (objfile, msymbol->linkage_name (), | |
4836 | VAR_DOMAIN).symbol == NULL) | |
4837 | { | |
4838 | /* Matching msymbol, add it to the results list. */ | |
c2512106 AB |
4839 | if (results->size () < m_max_search_results) |
4840 | results->emplace_back (GLOBAL_BLOCK, msymbol, objfile); | |
4841 | else | |
4842 | return false; | |
f97a63c5 AB |
4843 | } |
4844 | } | |
4845 | } | |
4846 | } | |
4847 | } | |
12615cba | 4848 | |
c2512106 | 4849 | return true; |
434d2d4f | 4850 | } |
5bd98722 | 4851 | |
470c0b1c | 4852 | /* See symtab.h. */ |
c378eb4e | 4853 | |
b9c04fb2 | 4854 | std::vector<symbol_search> |
470c0b1c | 4855 | global_symbol_searcher::search () const |
c906108c | 4856 | { |
2d7cc5c7 | 4857 | gdb::optional<compiled_regex> preg; |
12615cba | 4858 | gdb::optional<compiled_regex> treg; |
c906108c | 4859 | |
470c0b1c | 4860 | gdb_assert (m_kind != ALL_DOMAIN); |
e8930875 | 4861 | |
470c0b1c | 4862 | if (m_symbol_name_regexp != NULL) |
c906108c | 4863 | { |
470c0b1c | 4864 | const char *symbol_name_regexp = m_symbol_name_regexp; |
9c48a8e6 | 4865 | std::string symbol_name_regexp_holder; |
470c0b1c | 4866 | |
c906108c | 4867 | /* Make sure spacing is right for C++ operators. |
dda83cd7 SM |
4868 | This is just a courtesy to make the matching less sensitive |
4869 | to how many spaces the user leaves between 'operator' | |
4870 | and <TYPENAME> or <OPERATOR>. */ | |
96142726 | 4871 | const char *opend; |
470c0b1c | 4872 | const char *opname = operator_chars (symbol_name_regexp, &opend); |
433759f7 | 4873 | |
c906108c | 4874 | if (*opname) |
c5aa993b | 4875 | { |
3e43a32a | 4876 | int fix = -1; /* -1 means ok; otherwise number of |
dda83cd7 | 4877 | spaces needed. */ |
433759f7 | 4878 | |
c5aa993b JM |
4879 | if (isalpha (*opname) || *opname == '_' || *opname == '$') |
4880 | { | |
c378eb4e | 4881 | /* There should 1 space between 'operator' and 'TYPENAME'. */ |
c5aa993b JM |
4882 | if (opname[-1] != ' ' || opname[-2] == ' ') |
4883 | fix = 1; | |
4884 | } | |
4885 | else | |
4886 | { | |
c378eb4e | 4887 | /* There should 0 spaces between 'operator' and 'OPERATOR'. */ |
c5aa993b JM |
4888 | if (opname[-1] == ' ') |
4889 | fix = 0; | |
4890 | } | |
c378eb4e | 4891 | /* If wrong number of spaces, fix it. */ |
c5aa993b JM |
4892 | if (fix >= 0) |
4893 | { | |
9c48a8e6 SM |
4894 | symbol_name_regexp_holder |
4895 | = string_printf ("operator%.*s%s", fix, " ", opname); | |
4896 | symbol_name_regexp = symbol_name_regexp_holder.c_str (); | |
c5aa993b JM |
4897 | } |
4898 | } | |
4899 | ||
2d7cc5c7 PA |
4900 | int cflags = REG_NOSUB | (case_sensitivity == case_sensitive_off |
4901 | ? REG_ICASE : 0); | |
470c0b1c AB |
4902 | preg.emplace (symbol_name_regexp, cflags, |
4903 | _("Invalid regexp")); | |
c906108c SS |
4904 | } |
4905 | ||
470c0b1c | 4906 | if (m_symbol_type_regexp != NULL) |
12615cba PW |
4907 | { |
4908 | int cflags = REG_NOSUB | (case_sensitivity == case_sensitive_off | |
4909 | ? REG_ICASE : 0); | |
470c0b1c AB |
4910 | treg.emplace (m_symbol_type_regexp, cflags, |
4911 | _("Invalid regexp")); | |
12615cba PW |
4912 | } |
4913 | ||
f97a63c5 | 4914 | bool found_msymbol = false; |
c2512106 | 4915 | std::set<symbol_search> result_set; |
2030c079 | 4916 | for (objfile *objfile : current_program_space->objfiles ()) |
d8aeb77f | 4917 | { |
f97a63c5 AB |
4918 | /* Expand symtabs within objfile that possibly contain matching |
4919 | symbols. */ | |
4920 | found_msymbol |= expand_symtabs (objfile, preg); | |
4921 | ||
c2512106 AB |
4922 | /* Find matching symbols within OBJFILE and add them in to the |
4923 | RESULT_SET set. Use a set here so that we can easily detect | |
4924 | duplicates as we go, and can therefore track how many unique | |
4925 | matches we have found so far. */ | |
4926 | if (!add_matching_symbols (objfile, preg, treg, &result_set)) | |
4927 | break; | |
d8aeb77f | 4928 | } |
c906108c | 4929 | |
c2512106 AB |
4930 | /* Convert the result set into a sorted result list, as std::set is |
4931 | defined to be sorted then no explicit call to std::sort is needed. */ | |
4932 | std::vector<symbol_search> result (result_set.begin (), result_set.end ()); | |
b52109bc | 4933 | |
470c0b1c | 4934 | /* If there are no debug symbols, then add matching minsyms. But if the |
f97a63c5 AB |
4935 | user wants to see symbols matching a type regexp, then never give a |
4936 | minimal symbol, as we assume that a minimal symbol does not have a | |
4937 | type. */ | |
4938 | if ((found_msymbol || (filenames.empty () && m_kind == VARIABLES_DOMAIN)) | |
470c0b1c | 4939 | && !m_exclude_minsyms |
a8462bbf | 4940 | && !treg.has_value ()) |
c906108c | 4941 | { |
f97a63c5 | 4942 | gdb_assert (m_kind == VARIABLES_DOMAIN || m_kind == FUNCTIONS_DOMAIN); |
2030c079 | 4943 | for (objfile *objfile : current_program_space->objfiles ()) |
c2512106 AB |
4944 | if (!add_matching_msymbols (objfile, preg, &result)) |
4945 | break; | |
c906108c SS |
4946 | } |
4947 | ||
b9c04fb2 | 4948 | return result; |
c906108c SS |
4949 | } |
4950 | ||
5f512a7d | 4951 | /* See symtab.h. */ |
c378eb4e | 4952 | |
5f512a7d AB |
4953 | std::string |
4954 | symbol_to_info_string (struct symbol *sym, int block, | |
4955 | enum search_domain kind) | |
c906108c | 4956 | { |
5f512a7d | 4957 | std::string str; |
05cba821 | 4958 | |
5f512a7d | 4959 | gdb_assert (block == GLOBAL_BLOCK || block == STATIC_BLOCK); |
b744723f | 4960 | |
176620f1 | 4961 | if (kind != TYPES_DOMAIN && block == STATIC_BLOCK) |
5f512a7d | 4962 | str += "static "; |
c5aa993b | 4963 | |
c378eb4e | 4964 | /* Typedef that is not a C++ class. */ |
176620f1 | 4965 | if (kind == TYPES_DOMAIN |
6c9c307c | 4966 | && sym->domain () != STRUCT_DOMAIN) |
eb86c5e2 | 4967 | { |
5f512a7d AB |
4968 | string_file tmp_stream; |
4969 | ||
eb86c5e2 AB |
4970 | /* FIXME: For C (and C++) we end up with a difference in output here |
4971 | between how a typedef is printed, and non-typedefs are printed. | |
4972 | The TYPEDEF_PRINT code places a ";" at the end in an attempt to | |
4973 | appear C-like, while TYPE_PRINT doesn't. | |
4974 | ||
4975 | For the struct printing case below, things are worse, we force | |
4976 | printing of the ";" in this function, which is going to be wrong | |
4977 | for languages that don't require a ";" between statements. */ | |
5f9c5a63 SM |
4978 | if (sym->type ()->code () == TYPE_CODE_TYPEDEF) |
4979 | typedef_print (sym->type (), sym, &tmp_stream); | |
eb86c5e2 | 4980 | else |
5f9c5a63 | 4981 | type_print (sym->type (), "", &tmp_stream, -1); |
5f512a7d | 4982 | str += tmp_stream.string (); |
eb86c5e2 | 4983 | } |
c378eb4e | 4984 | /* variable, func, or typedef-that-is-c++-class. */ |
d50bd42b DE |
4985 | else if (kind < TYPES_DOMAIN |
4986 | || (kind == TYPES_DOMAIN | |
6c9c307c | 4987 | && sym->domain () == STRUCT_DOMAIN)) |
c906108c | 4988 | { |
5f512a7d AB |
4989 | string_file tmp_stream; |
4990 | ||
5f9c5a63 | 4991 | type_print (sym->type (), |
66d7f48f | 4992 | (sym->aclass () == LOC_TYPEDEF |
987012b8 | 4993 | ? "" : sym->print_name ()), |
5f512a7d | 4994 | &tmp_stream, 0); |
c906108c | 4995 | |
5f512a7d AB |
4996 | str += tmp_stream.string (); |
4997 | str += ";"; | |
c906108c | 4998 | } |
59c35742 AB |
4999 | /* Printing of modules is currently done here, maybe at some future |
5000 | point we might want a language specific method to print the module | |
5001 | symbol so that we can customise the output more. */ | |
5002 | else if (kind == MODULES_DOMAIN) | |
5f512a7d AB |
5003 | str += sym->print_name (); |
5004 | ||
5005 | return str; | |
5006 | } | |
5007 | ||
5008 | /* Helper function for symbol info commands, for example 'info functions', | |
5009 | 'info variables', etc. KIND is the kind of symbol we searched for, and | |
5010 | BLOCK is the type of block the symbols was found in, either GLOBAL_BLOCK | |
5011 | or STATIC_BLOCK. SYM is the symbol we found. If LAST is not NULL, | |
5012 | print file and line number information for the symbol as well. Skip | |
5013 | printing the filename if it matches LAST. */ | |
5014 | ||
5015 | static void | |
5016 | print_symbol_info (enum search_domain kind, | |
5017 | struct symbol *sym, | |
5018 | int block, const char *last) | |
5019 | { | |
5020 | scoped_switch_to_sym_language_if_auto l (sym); | |
4206d69e | 5021 | struct symtab *s = sym->symtab (); |
5f512a7d AB |
5022 | |
5023 | if (last != NULL) | |
5024 | { | |
5025 | const char *s_filename = symtab_to_filename_for_display (s); | |
5026 | ||
5027 | if (filename_cmp (last, s_filename) != 0) | |
5028 | { | |
6cb06a8c TT |
5029 | gdb_printf (_("\nFile %ps:\n"), |
5030 | styled_string (file_name_style.style (), | |
5031 | s_filename)); | |
5f512a7d AB |
5032 | } |
5033 | ||
5d0027b9 | 5034 | if (sym->line () != 0) |
6cb06a8c | 5035 | gdb_printf ("%d:\t", sym->line ()); |
5f512a7d | 5036 | else |
0426ad51 | 5037 | gdb_puts ("\t"); |
5f512a7d AB |
5038 | } |
5039 | ||
5040 | std::string str = symbol_to_info_string (sym, block, kind); | |
6cb06a8c | 5041 | gdb_printf ("%s\n", str.c_str ()); |
c906108c SS |
5042 | } |
5043 | ||
5044 | /* This help function for symtab_symbol_info() prints information | |
c378eb4e MS |
5045 | for non-debugging symbols to gdb_stdout. */ |
5046 | ||
c906108c | 5047 | static void |
7c7b6655 | 5048 | print_msymbol_info (struct bound_minimal_symbol msymbol) |
c906108c | 5049 | { |
08feed99 | 5050 | struct gdbarch *gdbarch = msymbol.objfile->arch (); |
3ac4495a MS |
5051 | char *tmp; |
5052 | ||
d80b854b | 5053 | if (gdbarch_addr_bit (gdbarch) <= 32) |
4aeddc50 | 5054 | tmp = hex_string_custom (msymbol.value_address () |
bb599908 PH |
5055 | & (CORE_ADDR) 0xffffffff, |
5056 | 8); | |
3ac4495a | 5057 | else |
4aeddc50 | 5058 | tmp = hex_string_custom (msymbol.value_address (), |
bb599908 | 5059 | 16); |
6a831f06 PA |
5060 | |
5061 | ui_file_style sym_style = (msymbol.minsym->text_p () | |
5062 | ? function_name_style.style () | |
5063 | : ui_file_style ()); | |
5064 | ||
6cb06a8c TT |
5065 | gdb_printf (_("%ps %ps\n"), |
5066 | styled_string (address_style.style (), tmp), | |
5067 | styled_string (sym_style, msymbol.minsym->print_name ())); | |
c906108c SS |
5068 | } |
5069 | ||
5070 | /* This is the guts of the commands "info functions", "info types", and | |
c378eb4e | 5071 | "info variables". It calls search_symbols to find all matches and then |
c906108c | 5072 | print_[m]symbol_info to print out some useful information about the |
c378eb4e MS |
5073 | matches. */ |
5074 | ||
c906108c | 5075 | static void |
4acfdd20 | 5076 | symtab_symbol_info (bool quiet, bool exclude_minsyms, |
12615cba PW |
5077 | const char *regexp, enum search_domain kind, |
5078 | const char *t_regexp, int from_tty) | |
c906108c | 5079 | { |
bc043ef3 | 5080 | static const char * const classnames[] = |
59c35742 | 5081 | {"variable", "function", "type", "module"}; |
c7dcbf88 | 5082 | const char *last_filename = ""; |
c906108c SS |
5083 | int first = 1; |
5084 | ||
59c35742 | 5085 | gdb_assert (kind != ALL_DOMAIN); |
e8930875 | 5086 | |
b16507e0 AB |
5087 | if (regexp != nullptr && *regexp == '\0') |
5088 | regexp = nullptr; | |
5089 | ||
470c0b1c AB |
5090 | global_symbol_searcher spec (kind, regexp); |
5091 | spec.set_symbol_type_regexp (t_regexp); | |
5092 | spec.set_exclude_minsyms (exclude_minsyms); | |
5093 | std::vector<symbol_search> symbols = spec.search (); | |
c906108c | 5094 | |
12615cba PW |
5095 | if (!quiet) |
5096 | { | |
5097 | if (regexp != NULL) | |
5098 | { | |
5099 | if (t_regexp != NULL) | |
6cb06a8c | 5100 | gdb_printf |
12615cba | 5101 | (_("All %ss matching regular expression \"%s\"" |
0c95f9ed | 5102 | " with type matching regular expression \"%s\":\n"), |
12615cba PW |
5103 | classnames[kind], regexp, t_regexp); |
5104 | else | |
6cb06a8c TT |
5105 | gdb_printf (_("All %ss matching regular expression \"%s\":\n"), |
5106 | classnames[kind], regexp); | |
12615cba PW |
5107 | } |
5108 | else | |
5109 | { | |
5110 | if (t_regexp != NULL) | |
6cb06a8c | 5111 | gdb_printf |
12615cba | 5112 | (_("All defined %ss" |
0c95f9ed | 5113 | " with type matching regular expression \"%s\" :\n"), |
12615cba PW |
5114 | classnames[kind], t_regexp); |
5115 | else | |
6cb06a8c | 5116 | gdb_printf (_("All defined %ss:\n"), classnames[kind]); |
12615cba PW |
5117 | } |
5118 | } | |
c906108c | 5119 | |
b9c04fb2 | 5120 | for (const symbol_search &p : symbols) |
c906108c SS |
5121 | { |
5122 | QUIT; | |
5123 | ||
b9c04fb2 | 5124 | if (p.msymbol.minsym != NULL) |
c5aa993b JM |
5125 | { |
5126 | if (first) | |
5127 | { | |
12615cba | 5128 | if (!quiet) |
6cb06a8c | 5129 | gdb_printf (_("\nNon-debugging symbols:\n")); |
c5aa993b JM |
5130 | first = 0; |
5131 | } | |
b9c04fb2 | 5132 | print_msymbol_info (p.msymbol); |
c5aa993b | 5133 | } |
c906108c | 5134 | else |
c5aa993b JM |
5135 | { |
5136 | print_symbol_info (kind, | |
b9c04fb2 TT |
5137 | p.symbol, |
5138 | p.block, | |
c5aa993b | 5139 | last_filename); |
d01060f0 | 5140 | last_filename |
4206d69e | 5141 | = symtab_to_filename_for_display (p.symbol->symtab ()); |
c5aa993b | 5142 | } |
c906108c | 5143 | } |
c906108c SS |
5144 | } |
5145 | ||
4acfdd20 AB |
5146 | /* Structure to hold the values of the options used by the 'info variables' |
5147 | and 'info functions' commands. These correspond to the -q, -t, and -n | |
5148 | options. */ | |
5149 | ||
095252be | 5150 | struct info_vars_funcs_options |
4acfdd20 | 5151 | { |
491144b5 CB |
5152 | bool quiet = false; |
5153 | bool exclude_minsyms = false; | |
e0700ba4 | 5154 | std::string type_regexp; |
4acfdd20 AB |
5155 | }; |
5156 | ||
5157 | /* The options used by the 'info variables' and 'info functions' | |
5158 | commands. */ | |
5159 | ||
095252be AT |
5160 | static const gdb::option::option_def info_vars_funcs_options_defs[] = { |
5161 | gdb::option::boolean_option_def<info_vars_funcs_options> { | |
4acfdd20 | 5162 | "q", |
095252be | 5163 | [] (info_vars_funcs_options *opt) { return &opt->quiet; }, |
4acfdd20 AB |
5164 | nullptr, /* show_cmd_cb */ |
5165 | nullptr /* set_doc */ | |
5166 | }, | |
5167 | ||
095252be | 5168 | gdb::option::boolean_option_def<info_vars_funcs_options> { |
4acfdd20 | 5169 | "n", |
095252be | 5170 | [] (info_vars_funcs_options *opt) { return &opt->exclude_minsyms; }, |
4acfdd20 AB |
5171 | nullptr, /* show_cmd_cb */ |
5172 | nullptr /* set_doc */ | |
5173 | }, | |
5174 | ||
095252be | 5175 | gdb::option::string_option_def<info_vars_funcs_options> { |
4acfdd20 | 5176 | "t", |
e0700ba4 | 5177 | [] (info_vars_funcs_options *opt) { return &opt->type_regexp; }, |
4acfdd20 AB |
5178 | nullptr, /* show_cmd_cb */ |
5179 | nullptr /* set_doc */ | |
5180 | } | |
5181 | }; | |
5182 | ||
5183 | /* Returns the option group used by 'info variables' and 'info | |
5184 | functions'. */ | |
5185 | ||
5186 | static gdb::option::option_def_group | |
095252be | 5187 | make_info_vars_funcs_options_def_group (info_vars_funcs_options *opts) |
4acfdd20 | 5188 | { |
095252be | 5189 | return {{info_vars_funcs_options_defs}, opts}; |
4acfdd20 AB |
5190 | } |
5191 | ||
5192 | /* Command completer for 'info variables' and 'info functions'. */ | |
5193 | ||
5194 | static void | |
095252be AT |
5195 | info_vars_funcs_command_completer (struct cmd_list_element *ignore, |
5196 | completion_tracker &tracker, | |
5197 | const char *text, const char * /* word */) | |
4acfdd20 AB |
5198 | { |
5199 | const auto group | |
095252be | 5200 | = make_info_vars_funcs_options_def_group (nullptr); |
4acfdd20 AB |
5201 | if (gdb::option::complete_options |
5202 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
5203 | return; | |
5204 | ||
5205 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
5206 | symbol_completer (ignore, tracker, text, word); | |
5207 | } | |
5208 | ||
b16507e0 AB |
5209 | /* Implement the 'info variables' command. */ |
5210 | ||
0b39b52e | 5211 | static void |
12615cba | 5212 | info_variables_command (const char *args, int from_tty) |
0b39b52e | 5213 | { |
095252be AT |
5214 | info_vars_funcs_options opts; |
5215 | auto grp = make_info_vars_funcs_options_def_group (&opts); | |
4acfdd20 AB |
5216 | gdb::option::process_options |
5217 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5218 | if (args != nullptr && *args == '\0') | |
5219 | args = nullptr; | |
b16507e0 | 5220 | |
e0700ba4 SM |
5221 | symtab_symbol_info |
5222 | (opts.quiet, opts.exclude_minsyms, args, VARIABLES_DOMAIN, | |
5223 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
5224 | from_tty); | |
0b39b52e TT |
5225 | } |
5226 | ||
b16507e0 | 5227 | /* Implement the 'info functions' command. */ |
12615cba | 5228 | |
c906108c | 5229 | static void |
12615cba | 5230 | info_functions_command (const char *args, int from_tty) |
c906108c | 5231 | { |
095252be AT |
5232 | info_vars_funcs_options opts; |
5233 | ||
5234 | auto grp = make_info_vars_funcs_options_def_group (&opts); | |
4acfdd20 AB |
5235 | gdb::option::process_options |
5236 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5237 | if (args != nullptr && *args == '\0') | |
5238 | args = nullptr; | |
b16507e0 | 5239 | |
e0700ba4 SM |
5240 | symtab_symbol_info |
5241 | (opts.quiet, opts.exclude_minsyms, args, FUNCTIONS_DOMAIN, | |
5242 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
5243 | from_tty); | |
c906108c SS |
5244 | } |
5245 | ||
a8eab7c6 AB |
5246 | /* Holds the -q option for the 'info types' command. */ |
5247 | ||
5248 | struct info_types_options | |
5249 | { | |
491144b5 | 5250 | bool quiet = false; |
a8eab7c6 AB |
5251 | }; |
5252 | ||
5253 | /* The options used by the 'info types' command. */ | |
5254 | ||
5255 | static const gdb::option::option_def info_types_options_defs[] = { | |
5256 | gdb::option::boolean_option_def<info_types_options> { | |
5257 | "q", | |
5258 | [] (info_types_options *opt) { return &opt->quiet; }, | |
5259 | nullptr, /* show_cmd_cb */ | |
5260 | nullptr /* set_doc */ | |
5261 | } | |
5262 | }; | |
5263 | ||
5264 | /* Returns the option group used by 'info types'. */ | |
5265 | ||
5266 | static gdb::option::option_def_group | |
5267 | make_info_types_options_def_group (info_types_options *opts) | |
5268 | { | |
5269 | return {{info_types_options_defs}, opts}; | |
5270 | } | |
5271 | ||
5272 | /* Implement the 'info types' command. */ | |
357e46e7 | 5273 | |
c906108c | 5274 | static void |
a8eab7c6 | 5275 | info_types_command (const char *args, int from_tty) |
c906108c | 5276 | { |
a8eab7c6 AB |
5277 | info_types_options opts; |
5278 | ||
5279 | auto grp = make_info_types_options_def_group (&opts); | |
5280 | gdb::option::process_options | |
5281 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5282 | if (args != nullptr && *args == '\0') | |
5283 | args = nullptr; | |
4acfdd20 | 5284 | symtab_symbol_info (opts.quiet, false, args, TYPES_DOMAIN, NULL, from_tty); |
a8eab7c6 AB |
5285 | } |
5286 | ||
5287 | /* Command completer for 'info types' command. */ | |
5288 | ||
5289 | static void | |
5290 | info_types_command_completer (struct cmd_list_element *ignore, | |
5291 | completion_tracker &tracker, | |
5292 | const char *text, const char * /* word */) | |
5293 | { | |
5294 | const auto group | |
5295 | = make_info_types_options_def_group (nullptr); | |
5296 | if (gdb::option::complete_options | |
5297 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
5298 | return; | |
5299 | ||
5300 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
5301 | symbol_completer (ignore, tracker, text, word); | |
c906108c SS |
5302 | } |
5303 | ||
59c35742 AB |
5304 | /* Implement the 'info modules' command. */ |
5305 | ||
5306 | static void | |
5307 | info_modules_command (const char *args, int from_tty) | |
5308 | { | |
5309 | info_types_options opts; | |
5310 | ||
5311 | auto grp = make_info_types_options_def_group (&opts); | |
5312 | gdb::option::process_options | |
5313 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
5314 | if (args != nullptr && *args == '\0') | |
5315 | args = nullptr; | |
5316 | symtab_symbol_info (opts.quiet, true, args, MODULES_DOMAIN, NULL, | |
5317 | from_tty); | |
5318 | } | |
5319 | ||
03d83cd5 RB |
5320 | /* Implement the 'info main' command. */ |
5321 | ||
5322 | static void | |
5323 | info_main_command (const char *args, int from_tty) | |
5324 | { | |
5325 | gdb_printf ("%s\n", main_name ()); | |
5326 | } | |
5327 | ||
c906108c | 5328 | static void |
0b39b52e | 5329 | rbreak_command (const char *regexp, int from_tty) |
c906108c | 5330 | { |
c80049d3 | 5331 | std::string string; |
470c0b1c | 5332 | const char *file_name = nullptr; |
c906108c | 5333 | |
470c0b1c | 5334 | if (regexp != nullptr) |
8bd10a10 | 5335 | { |
0b39b52e | 5336 | const char *colon = strchr (regexp, ':'); |
433759f7 | 5337 | |
2c074f49 HD |
5338 | /* Ignore the colon if it is part of a Windows drive. */ |
5339 | if (HAS_DRIVE_SPEC (regexp) | |
5340 | && (regexp[2] == '/' || regexp[2] == '\\')) | |
5341 | colon = strchr (STRIP_DRIVE_SPEC (regexp), ':'); | |
5342 | ||
8bd10a10 CM |
5343 | if (colon && *(colon + 1) != ':') |
5344 | { | |
5345 | int colon_index; | |
96142726 | 5346 | char *local_name; |
8bd10a10 CM |
5347 | |
5348 | colon_index = colon - regexp; | |
224c3ddb | 5349 | local_name = (char *) alloca (colon_index + 1); |
96142726 TT |
5350 | memcpy (local_name, regexp, colon_index); |
5351 | local_name[colon_index--] = 0; | |
5352 | while (isspace (local_name[colon_index])) | |
5353 | local_name[colon_index--] = 0; | |
5354 | file_name = local_name; | |
529480d0 | 5355 | regexp = skip_spaces (colon + 1); |
8bd10a10 CM |
5356 | } |
5357 | } | |
5358 | ||
470c0b1c AB |
5359 | global_symbol_searcher spec (FUNCTIONS_DOMAIN, regexp); |
5360 | if (file_name != nullptr) | |
5361 | spec.filenames.push_back (file_name); | |
5362 | std::vector<symbol_search> symbols = spec.search (); | |
c906108c | 5363 | |
c80049d3 | 5364 | scoped_rbreak_breakpoints finalize; |
b9c04fb2 | 5365 | for (const symbol_search &p : symbols) |
c906108c | 5366 | { |
b9c04fb2 | 5367 | if (p.msymbol.minsym == NULL) |
c5aa993b | 5368 | { |
4206d69e | 5369 | struct symtab *symtab = p.symbol->symtab (); |
d01060f0 | 5370 | const char *fullname = symtab_to_fullname (symtab); |
05cba821 | 5371 | |
c80049d3 | 5372 | string = string_printf ("%s:'%s'", fullname, |
987012b8 | 5373 | p.symbol->linkage_name ()); |
c80049d3 | 5374 | break_command (&string[0], from_tty); |
c7dcbf88 | 5375 | print_symbol_info (FUNCTIONS_DOMAIN, p.symbol, p.block, NULL); |
c5aa993b | 5376 | } |
c906108c | 5377 | else |
c5aa993b | 5378 | { |
c80049d3 | 5379 | string = string_printf ("'%s'", |
c9d95fa3 | 5380 | p.msymbol.minsym->linkage_name ()); |
6214f497 | 5381 | |
c80049d3 | 5382 | break_command (&string[0], from_tty); |
6cb06a8c TT |
5383 | gdb_printf ("<function, no debug info> %s;\n", |
5384 | p.msymbol.minsym->print_name ()); | |
c5aa993b | 5385 | } |
c906108c | 5386 | } |
c906108c | 5387 | } |
c906108c | 5388 | \f |
c5aa993b | 5389 | |
c62446b1 | 5390 | /* Evaluate if SYMNAME matches LOOKUP_NAME. */ |
1976171a JK |
5391 | |
5392 | static int | |
c62446b1 | 5393 | compare_symbol_name (const char *symbol_name, language symbol_language, |
b5ec771e | 5394 | const lookup_name_info &lookup_name, |
b5ec771e PA |
5395 | completion_match_result &match_res) |
5396 | { | |
d4c2a405 | 5397 | const language_defn *lang = language_def (symbol_language); |
1976171a | 5398 | |
b5ec771e | 5399 | symbol_name_matcher_ftype *name_match |
c9debfb9 | 5400 | = lang->get_symbol_name_matcher (lookup_name); |
1976171a | 5401 | |
a207cff2 | 5402 | return name_match (symbol_name, lookup_name, &match_res); |
1976171a JK |
5403 | } |
5404 | ||
b5ec771e | 5405 | /* See symtab.h. */ |
c906108c | 5406 | |
e08bd6c5 | 5407 | bool |
eb3ff9a5 | 5408 | completion_list_add_name (completion_tracker &tracker, |
b5ec771e | 5409 | language symbol_language, |
eb3ff9a5 | 5410 | const char *symname, |
b5ec771e | 5411 | const lookup_name_info &lookup_name, |
0d5cff50 | 5412 | const char *text, const char *word) |
c906108c | 5413 | { |
b5ec771e PA |
5414 | completion_match_result &match_res |
5415 | = tracker.reset_completion_match_result (); | |
5416 | ||
c378eb4e | 5417 | /* Clip symbols that cannot match. */ |
c62446b1 | 5418 | if (!compare_symbol_name (symname, symbol_language, lookup_name, match_res)) |
e08bd6c5 | 5419 | return false; |
c906108c | 5420 | |
b5ec771e PA |
5421 | /* Refresh SYMNAME from the match string. It's potentially |
5422 | different depending on language. (E.g., on Ada, the match may be | |
5423 | the encoded symbol name wrapped in "<>"). */ | |
5424 | symname = match_res.match.match (); | |
5425 | gdb_assert (symname != NULL); | |
5426 | ||
c906108c | 5427 | /* We have a match for a completion, so add SYMNAME to the current list |
c378eb4e | 5428 | of matches. Note that the name is moved to freshly malloc'd space. */ |
c906108c SS |
5429 | |
5430 | { | |
60a20c19 PA |
5431 | gdb::unique_xmalloc_ptr<char> completion |
5432 | = make_completion_match_str (symname, text, word); | |
ef0b411a | 5433 | |
a207cff2 PA |
5434 | /* Here we pass the match-for-lcd object to add_completion. Some |
5435 | languages match the user text against substrings of symbol | |
5436 | names in some cases. E.g., in C++, "b push_ba" completes to | |
5437 | "std::vector::push_back", "std::string::push_back", etc., and | |
5438 | in this case we want the completion lowest common denominator | |
5439 | to be "push_back" instead of "std::". */ | |
5440 | tracker.add_completion (std::move (completion), | |
a22ecf70 | 5441 | &match_res.match_for_lcd, text, word); |
c906108c | 5442 | } |
e08bd6c5 PA |
5443 | |
5444 | return true; | |
c906108c SS |
5445 | } |
5446 | ||
6da67eb1 PA |
5447 | /* completion_list_add_name wrapper for struct symbol. */ |
5448 | ||
5449 | static void | |
eb3ff9a5 PA |
5450 | completion_list_add_symbol (completion_tracker &tracker, |
5451 | symbol *sym, | |
b5ec771e | 5452 | const lookup_name_info &lookup_name, |
6da67eb1 PA |
5453 | const char *text, const char *word) |
5454 | { | |
e08bd6c5 PA |
5455 | if (!completion_list_add_name (tracker, sym->language (), |
5456 | sym->natural_name (), | |
5457 | lookup_name, text, word)) | |
5458 | return; | |
19a2740f AB |
5459 | |
5460 | /* C++ function symbols include the parameters within both the msymbol | |
5461 | name and the symbol name. The problem is that the msymbol name will | |
5462 | describe the parameters in the most basic way, with typedefs stripped | |
5463 | out, while the symbol name will represent the types as they appear in | |
5464 | the program. This means we will see duplicate entries in the | |
5465 | completion tracker. The following converts the symbol name back to | |
5466 | the msymbol name and removes the msymbol name from the completion | |
5467 | tracker. */ | |
5468 | if (sym->language () == language_cplus | |
6c9c307c | 5469 | && sym->domain () == VAR_DOMAIN |
66d7f48f | 5470 | && sym->aclass () == LOC_BLOCK) |
19a2740f AB |
5471 | { |
5472 | /* The call to canonicalize returns the empty string if the input | |
5473 | string is already in canonical form, thanks to this we don't | |
5474 | remove the symbol we just added above. */ | |
596dc4ad | 5475 | gdb::unique_xmalloc_ptr<char> str |
19a2740f | 5476 | = cp_canonicalize_string_no_typedefs (sym->natural_name ()); |
596dc4ad TT |
5477 | if (str != nullptr) |
5478 | tracker.remove_completion (str.get ()); | |
19a2740f | 5479 | } |
6da67eb1 PA |
5480 | } |
5481 | ||
5482 | /* completion_list_add_name wrapper for struct minimal_symbol. */ | |
5483 | ||
5484 | static void | |
eb3ff9a5 PA |
5485 | completion_list_add_msymbol (completion_tracker &tracker, |
5486 | minimal_symbol *sym, | |
b5ec771e | 5487 | const lookup_name_info &lookup_name, |
6da67eb1 PA |
5488 | const char *text, const char *word) |
5489 | { | |
c1b5c1eb | 5490 | completion_list_add_name (tracker, sym->language (), |
c9d95fa3 | 5491 | sym->natural_name (), |
1b026119 | 5492 | lookup_name, text, word); |
6da67eb1 PA |
5493 | } |
5494 | ||
b5ec771e | 5495 | |
69636828 AF |
5496 | /* ObjC: In case we are completing on a selector, look as the msymbol |
5497 | again and feed all the selectors into the mill. */ | |
5498 | ||
5499 | static void | |
eb3ff9a5 PA |
5500 | completion_list_objc_symbol (completion_tracker &tracker, |
5501 | struct minimal_symbol *msymbol, | |
b5ec771e | 5502 | const lookup_name_info &lookup_name, |
0d5cff50 | 5503 | const char *text, const char *word) |
69636828 AF |
5504 | { |
5505 | static char *tmp = NULL; | |
5506 | static unsigned int tmplen = 0; | |
9af17804 | 5507 | |
0d5cff50 | 5508 | const char *method, *category, *selector; |
69636828 | 5509 | char *tmp2 = NULL; |
9af17804 | 5510 | |
c9d95fa3 | 5511 | method = msymbol->natural_name (); |
69636828 AF |
5512 | |
5513 | /* Is it a method? */ | |
5514 | if ((method[0] != '-') && (method[0] != '+')) | |
5515 | return; | |
5516 | ||
1b026119 | 5517 | if (text[0] == '[') |
69636828 | 5518 | /* Complete on shortened method method. */ |
b5ec771e PA |
5519 | completion_list_add_name (tracker, language_objc, |
5520 | method + 1, | |
5521 | lookup_name, | |
1b026119 | 5522 | text, word); |
9af17804 | 5523 | |
69636828 AF |
5524 | while ((strlen (method) + 1) >= tmplen) |
5525 | { | |
5526 | if (tmplen == 0) | |
5527 | tmplen = 1024; | |
5528 | else | |
5529 | tmplen *= 2; | |
224c3ddb | 5530 | tmp = (char *) xrealloc (tmp, tmplen); |
69636828 AF |
5531 | } |
5532 | selector = strchr (method, ' '); | |
5533 | if (selector != NULL) | |
5534 | selector++; | |
9af17804 | 5535 | |
69636828 | 5536 | category = strchr (method, '('); |
9af17804 | 5537 | |
69636828 AF |
5538 | if ((category != NULL) && (selector != NULL)) |
5539 | { | |
5540 | memcpy (tmp, method, (category - method)); | |
5541 | tmp[category - method] = ' '; | |
5542 | memcpy (tmp + (category - method) + 1, selector, strlen (selector) + 1); | |
b5ec771e | 5543 | completion_list_add_name (tracker, language_objc, tmp, |
1b026119 PA |
5544 | lookup_name, text, word); |
5545 | if (text[0] == '[') | |
b5ec771e | 5546 | completion_list_add_name (tracker, language_objc, tmp + 1, |
1b026119 | 5547 | lookup_name, text, word); |
69636828 | 5548 | } |
9af17804 | 5549 | |
69636828 AF |
5550 | if (selector != NULL) |
5551 | { | |
5552 | /* Complete on selector only. */ | |
5553 | strcpy (tmp, selector); | |
5554 | tmp2 = strchr (tmp, ']'); | |
5555 | if (tmp2 != NULL) | |
5556 | *tmp2 = '\0'; | |
9af17804 | 5557 | |
b5ec771e | 5558 | completion_list_add_name (tracker, language_objc, tmp, |
1b026119 | 5559 | lookup_name, text, word); |
69636828 AF |
5560 | } |
5561 | } | |
5562 | ||
5563 | /* Break the non-quoted text based on the characters which are in | |
c378eb4e | 5564 | symbols. FIXME: This should probably be language-specific. */ |
69636828 | 5565 | |
6f937416 PA |
5566 | static const char * |
5567 | language_search_unquoted_string (const char *text, const char *p) | |
69636828 AF |
5568 | { |
5569 | for (; p > text; --p) | |
5570 | { | |
5571 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0') | |
5572 | continue; | |
5573 | else | |
5574 | { | |
5575 | if ((current_language->la_language == language_objc)) | |
5576 | { | |
c378eb4e | 5577 | if (p[-1] == ':') /* Might be part of a method name. */ |
69636828 AF |
5578 | continue; |
5579 | else if (p[-1] == '[' && (p[-2] == '-' || p[-2] == '+')) | |
c378eb4e | 5580 | p -= 2; /* Beginning of a method name. */ |
69636828 | 5581 | else if (p[-1] == ' ' || p[-1] == '(' || p[-1] == ')') |
c378eb4e | 5582 | { /* Might be part of a method name. */ |
6f937416 | 5583 | const char *t = p; |
69636828 AF |
5584 | |
5585 | /* Seeing a ' ' or a '(' is not conclusive evidence | |
5586 | that we are in the middle of a method name. However, | |
5587 | finding "-[" or "+[" should be pretty un-ambiguous. | |
5588 | Unfortunately we have to find it now to decide. */ | |
5589 | ||
5590 | while (t > text) | |
5591 | if (isalnum (t[-1]) || t[-1] == '_' || | |
5592 | t[-1] == ' ' || t[-1] == ':' || | |
5593 | t[-1] == '(' || t[-1] == ')') | |
5594 | --t; | |
5595 | else | |
5596 | break; | |
5597 | ||
5598 | if (t[-1] == '[' && (t[-2] == '-' || t[-2] == '+')) | |
c378eb4e MS |
5599 | p = t - 2; /* Method name detected. */ |
5600 | /* Else we leave with p unchanged. */ | |
69636828 AF |
5601 | } |
5602 | } | |
5603 | break; | |
5604 | } | |
5605 | } | |
5606 | return p; | |
5607 | } | |
5608 | ||
edb3359d | 5609 | static void |
eb3ff9a5 PA |
5610 | completion_list_add_fields (completion_tracker &tracker, |
5611 | struct symbol *sym, | |
b5ec771e | 5612 | const lookup_name_info &lookup_name, |
eb3ff9a5 | 5613 | const char *text, const char *word) |
edb3359d | 5614 | { |
66d7f48f | 5615 | if (sym->aclass () == LOC_TYPEDEF) |
edb3359d | 5616 | { |
5f9c5a63 | 5617 | struct type *t = sym->type (); |
78134374 | 5618 | enum type_code c = t->code (); |
edb3359d DJ |
5619 | int j; |
5620 | ||
5621 | if (c == TYPE_CODE_UNION || c == TYPE_CODE_STRUCT) | |
1f704f76 | 5622 | for (j = TYPE_N_BASECLASSES (t); j < t->num_fields (); j++) |
33d16dd9 | 5623 | if (t->field (j).name ()) |
c1b5c1eb | 5624 | completion_list_add_name (tracker, sym->language (), |
33d16dd9 | 5625 | t->field (j).name (), |
1b026119 | 5626 | lookup_name, text, word); |
edb3359d DJ |
5627 | } |
5628 | } | |
5629 | ||
f9d67a22 PA |
5630 | /* See symtab.h. */ |
5631 | ||
5632 | bool | |
5633 | symbol_is_function_or_method (symbol *sym) | |
5634 | { | |
5f9c5a63 | 5635 | switch (sym->type ()->code ()) |
f9d67a22 PA |
5636 | { |
5637 | case TYPE_CODE_FUNC: | |
5638 | case TYPE_CODE_METHOD: | |
5639 | return true; | |
5640 | default: | |
5641 | return false; | |
5642 | } | |
5643 | } | |
5644 | ||
5645 | /* See symtab.h. */ | |
5646 | ||
5647 | bool | |
5648 | symbol_is_function_or_method (minimal_symbol *msymbol) | |
5649 | { | |
60f62e2b | 5650 | switch (msymbol->type ()) |
f9d67a22 PA |
5651 | { |
5652 | case mst_text: | |
5653 | case mst_text_gnu_ifunc: | |
5654 | case mst_solib_trampoline: | |
5655 | case mst_file_text: | |
5656 | return true; | |
5657 | default: | |
5658 | return false; | |
5659 | } | |
5660 | } | |
5661 | ||
ca31ab1d PA |
5662 | /* See symtab.h. */ |
5663 | ||
5664 | bound_minimal_symbol | |
5665 | find_gnu_ifunc (const symbol *sym) | |
5666 | { | |
66d7f48f | 5667 | if (sym->aclass () != LOC_BLOCK) |
ca31ab1d PA |
5668 | return {}; |
5669 | ||
987012b8 | 5670 | lookup_name_info lookup_name (sym->search_name (), |
ca31ab1d | 5671 | symbol_name_match_type::SEARCH_NAME); |
e19b2d94 | 5672 | struct objfile *objfile = sym->objfile (); |
ca31ab1d | 5673 | |
6395b628 | 5674 | CORE_ADDR address = sym->value_block ()->entry_pc (); |
ca31ab1d PA |
5675 | minimal_symbol *ifunc = NULL; |
5676 | ||
5677 | iterate_over_minimal_symbols (objfile, lookup_name, | |
5678 | [&] (minimal_symbol *minsym) | |
5679 | { | |
60f62e2b SM |
5680 | if (minsym->type () == mst_text_gnu_ifunc |
5681 | || minsym->type () == mst_data_gnu_ifunc) | |
ca31ab1d | 5682 | { |
4aeddc50 | 5683 | CORE_ADDR msym_addr = minsym->value_address (objfile); |
60f62e2b | 5684 | if (minsym->type () == mst_data_gnu_ifunc) |
f50776aa | 5685 | { |
08feed99 | 5686 | struct gdbarch *gdbarch = objfile->arch (); |
328d42d8 SM |
5687 | msym_addr = gdbarch_convert_from_func_ptr_addr |
5688 | (gdbarch, msym_addr, current_inferior ()->top_target ()); | |
f50776aa PA |
5689 | } |
5690 | if (msym_addr == address) | |
5691 | { | |
5692 | ifunc = minsym; | |
5693 | return true; | |
5694 | } | |
ca31ab1d PA |
5695 | } |
5696 | return false; | |
5697 | }); | |
5698 | ||
5699 | if (ifunc != NULL) | |
5700 | return {ifunc, objfile}; | |
5701 | return {}; | |
5702 | } | |
5703 | ||
e11c72c7 GB |
5704 | /* Add matching symbols from SYMTAB to the current completion list. */ |
5705 | ||
5706 | static void | |
5707 | add_symtab_completions (struct compunit_symtab *cust, | |
eb3ff9a5 | 5708 | completion_tracker &tracker, |
f9d67a22 | 5709 | complete_symbol_mode mode, |
b5ec771e | 5710 | const lookup_name_info &lookup_name, |
e11c72c7 GB |
5711 | const char *text, const char *word, |
5712 | enum type_code code) | |
5713 | { | |
e11c72c7 GB |
5714 | int i; |
5715 | ||
ff6fa247 GB |
5716 | if (cust == NULL) |
5717 | return; | |
5718 | ||
e11c72c7 GB |
5719 | for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++) |
5720 | { | |
5721 | QUIT; | |
63d609de SM |
5722 | |
5723 | const struct block *b = cust->blockvector ()->block (i); | |
548a89df | 5724 | for (struct symbol *sym : block_iterator_range (b)) |
e11c72c7 | 5725 | { |
f9d67a22 PA |
5726 | if (completion_skip_symbol (mode, sym)) |
5727 | continue; | |
5728 | ||
e11c72c7 | 5729 | if (code == TYPE_CODE_UNDEF |
6c9c307c | 5730 | || (sym->domain () == STRUCT_DOMAIN |
5f9c5a63 | 5731 | && sym->type ()->code () == code)) |
eb3ff9a5 | 5732 | completion_list_add_symbol (tracker, sym, |
b5ec771e | 5733 | lookup_name, |
e11c72c7 GB |
5734 | text, word); |
5735 | } | |
5736 | } | |
5737 | } | |
5738 | ||
eb3ff9a5 PA |
5739 | void |
5740 | default_collect_symbol_completion_matches_break_on | |
b5ec771e PA |
5741 | (completion_tracker &tracker, complete_symbol_mode mode, |
5742 | symbol_name_match_type name_match_type, | |
eb3ff9a5 PA |
5743 | const char *text, const char *word, |
5744 | const char *break_on, enum type_code code) | |
c906108c | 5745 | { |
41d27058 JB |
5746 | /* Problem: All of the symbols have to be copied because readline |
5747 | frees them. I'm not going to worry about this; hopefully there | |
5748 | won't be that many. */ | |
5749 | ||
3977b71f | 5750 | const struct block *b; |
edb3359d | 5751 | const struct block *surrounding_static_block, *surrounding_global_block; |
c906108c | 5752 | /* The symbol we are completing on. Points in same buffer as text. */ |
6f937416 | 5753 | const char *sym_text; |
c906108c | 5754 | |
41d27058 | 5755 | /* Now look for the symbol we are supposed to complete on. */ |
c6756f62 PA |
5756 | if (mode == complete_symbol_mode::LINESPEC) |
5757 | sym_text = text; | |
5758 | else | |
01add95b SM |
5759 | { |
5760 | const char *p; | |
5761 | char quote_found; | |
5762 | const char *quote_pos = NULL; | |
c906108c | 5763 | |
01add95b SM |
5764 | /* First see if this is a quoted string. */ |
5765 | quote_found = '\0'; | |
5766 | for (p = text; *p != '\0'; ++p) | |
5767 | { | |
5768 | if (quote_found != '\0') | |
5769 | { | |
5770 | if (*p == quote_found) | |
5771 | /* Found close quote. */ | |
5772 | quote_found = '\0'; | |
5773 | else if (*p == '\\' && p[1] == quote_found) | |
5774 | /* A backslash followed by the quote character | |
5775 | doesn't end the string. */ | |
5776 | ++p; | |
5777 | } | |
5778 | else if (*p == '\'' || *p == '"') | |
5779 | { | |
5780 | quote_found = *p; | |
5781 | quote_pos = p; | |
5782 | } | |
5783 | } | |
5784 | if (quote_found == '\'') | |
5785 | /* A string within single quotes can be a symbol, so complete on it. */ | |
5786 | sym_text = quote_pos + 1; | |
5787 | else if (quote_found == '"') | |
5788 | /* A double-quoted string is never a symbol, nor does it make sense | |
5789 | to complete it any other way. */ | |
5790 | { | |
5791 | return; | |
5792 | } | |
5793 | else | |
5794 | { | |
5795 | /* It is not a quoted string. Break it based on the characters | |
5796 | which are in symbols. */ | |
5797 | while (p > text) | |
5798 | { | |
5799 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0' | |
5800 | || p[-1] == ':' || strchr (break_on, p[-1]) != NULL) | |
5801 | --p; | |
5802 | else | |
5803 | break; | |
5804 | } | |
5805 | sym_text = p; | |
5806 | } | |
5807 | } | |
c906108c | 5808 | |
1b026119 | 5809 | lookup_name_info lookup_name (sym_text, name_match_type, true); |
b5ec771e | 5810 | |
c906108c SS |
5811 | /* At this point scan through the misc symbol vectors and add each |
5812 | symbol you find to the list. Eventually we want to ignore | |
5813 | anything that isn't a text symbol (everything else will be | |
e11c72c7 | 5814 | handled by the psymtab code below). */ |
c906108c | 5815 | |
2f68a895 TT |
5816 | if (code == TYPE_CODE_UNDEF) |
5817 | { | |
2030c079 | 5818 | for (objfile *objfile : current_program_space->objfiles ()) |
2f68a895 | 5819 | { |
7932255d | 5820 | for (minimal_symbol *msymbol : objfile->msymbols ()) |
5325b9bf TT |
5821 | { |
5822 | QUIT; | |
9af17804 | 5823 | |
5325b9bf TT |
5824 | if (completion_skip_symbol (mode, msymbol)) |
5825 | continue; | |
f9d67a22 | 5826 | |
5325b9bf TT |
5827 | completion_list_add_msymbol (tracker, msymbol, lookup_name, |
5828 | sym_text, word); | |
eb3ff9a5 | 5829 | |
5325b9bf TT |
5830 | completion_list_objc_symbol (tracker, msymbol, lookup_name, |
5831 | sym_text, word); | |
5832 | } | |
2f68a895 TT |
5833 | } |
5834 | } | |
c906108c | 5835 | |
e11c72c7 | 5836 | /* Add completions for all currently loaded symbol tables. */ |
2030c079 | 5837 | for (objfile *objfile : current_program_space->objfiles ()) |
d8aeb77f | 5838 | { |
b669c953 | 5839 | for (compunit_symtab *cust : objfile->compunits ()) |
d8aeb77f TT |
5840 | add_symtab_completions (cust, tracker, mode, lookup_name, |
5841 | sym_text, word, code); | |
5842 | } | |
e11c72c7 | 5843 | |
14bc53a8 PA |
5844 | /* Look through the partial symtabs for all symbols which begin by |
5845 | matching SYM_TEXT. Expand all CUs that you find to the list. */ | |
5846 | expand_symtabs_matching (NULL, | |
b5ec771e PA |
5847 | lookup_name, |
5848 | NULL, | |
14bc53a8 PA |
5849 | [&] (compunit_symtab *symtab) /* expansion notify */ |
5850 | { | |
5851 | add_symtab_completions (symtab, | |
f9d67a22 | 5852 | tracker, mode, lookup_name, |
1b026119 | 5853 | sym_text, word, code); |
df35e626 | 5854 | return true; |
14bc53a8 | 5855 | }, |
03a8ea51 | 5856 | SEARCH_GLOBAL_BLOCK | SEARCH_STATIC_BLOCK, |
14bc53a8 | 5857 | ALL_DOMAIN); |
e11c72c7 | 5858 | |
c906108c | 5859 | /* Search upwards from currently selected frame (so that we can |
edb3359d DJ |
5860 | complete on local vars). Also catch fields of types defined in |
5861 | this places which match our text string. Only complete on types | |
c378eb4e | 5862 | visible from current context. */ |
edb3359d DJ |
5863 | |
5864 | b = get_selected_block (0); | |
d24e14a0 TT |
5865 | surrounding_static_block = b == nullptr ? nullptr : b->static_block (); |
5866 | surrounding_global_block = b == nullptr ? nullptr : b->global_block (); | |
edb3359d DJ |
5867 | if (surrounding_static_block != NULL) |
5868 | while (b != surrounding_static_block) | |
5869 | { | |
5870 | QUIT; | |
c906108c | 5871 | |
548a89df | 5872 | for (struct symbol *sym : block_iterator_range (b)) |
edb3359d | 5873 | { |
2f68a895 TT |
5874 | if (code == TYPE_CODE_UNDEF) |
5875 | { | |
b5ec771e | 5876 | completion_list_add_symbol (tracker, sym, lookup_name, |
1b026119 | 5877 | sym_text, word); |
b5ec771e | 5878 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 5879 | sym_text, word); |
2f68a895 | 5880 | } |
6c9c307c | 5881 | else if (sym->domain () == STRUCT_DOMAIN |
5f9c5a63 | 5882 | && sym->type ()->code () == code) |
b5ec771e | 5883 | completion_list_add_symbol (tracker, sym, lookup_name, |
1b026119 | 5884 | sym_text, word); |
edb3359d | 5885 | } |
c5aa993b | 5886 | |
edb3359d DJ |
5887 | /* Stop when we encounter an enclosing function. Do not stop for |
5888 | non-inlined functions - the locals of the enclosing function | |
5889 | are in scope for a nested function. */ | |
a4dfe747 | 5890 | if (b->function () != NULL && b->inlined_p ()) |
edb3359d | 5891 | break; |
f135fe72 | 5892 | b = b->superblock (); |
edb3359d | 5893 | } |
c906108c | 5894 | |
edb3359d | 5895 | /* Add fields from the file's types; symbols will be added below. */ |
c906108c | 5896 | |
2f68a895 TT |
5897 | if (code == TYPE_CODE_UNDEF) |
5898 | { | |
5899 | if (surrounding_static_block != NULL) | |
548a89df | 5900 | for (struct symbol *sym : block_iterator_range (surrounding_static_block)) |
b5ec771e | 5901 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 5902 | sym_text, word); |
edb3359d | 5903 | |
2f68a895 | 5904 | if (surrounding_global_block != NULL) |
548a89df | 5905 | for (struct symbol *sym : block_iterator_range (surrounding_global_block)) |
b5ec771e | 5906 | completion_list_add_fields (tracker, sym, lookup_name, |
1b026119 | 5907 | sym_text, word); |
2f68a895 | 5908 | } |
c906108c | 5909 | |
2f68a895 TT |
5910 | /* Skip macros if we are completing a struct tag -- arguable but |
5911 | usually what is expected. */ | |
1ac14a04 | 5912 | if (current_language->macro_expansion () == macro_expansion_c |
2f68a895 | 5913 | && code == TYPE_CODE_UNDEF) |
9a044a89 | 5914 | { |
f6c2623e | 5915 | gdb::unique_xmalloc_ptr<struct macro_scope> scope; |
9a044a89 | 5916 | |
14bc53a8 PA |
5917 | /* This adds a macro's name to the current completion list. */ |
5918 | auto add_macro_name = [&] (const char *macro_name, | |
5919 | const macro_definition *, | |
5920 | macro_source_file *, | |
5921 | int) | |
5922 | { | |
1b026119 PA |
5923 | completion_list_add_name (tracker, language_c, macro_name, |
5924 | lookup_name, sym_text, word); | |
14bc53a8 PA |
5925 | }; |
5926 | ||
9a044a89 TT |
5927 | /* Add any macros visible in the default scope. Note that this |
5928 | may yield the occasional wrong result, because an expression | |
5929 | might be evaluated in a scope other than the default. For | |
5930 | example, if the user types "break file:line if <TAB>", the | |
5931 | resulting expression will be evaluated at "file:line" -- but | |
5932 | at there does not seem to be a way to detect this at | |
5933 | completion time. */ | |
5934 | scope = default_macro_scope (); | |
5935 | if (scope) | |
f6c2623e TT |
5936 | macro_for_each_in_scope (scope->file, scope->line, |
5937 | add_macro_name); | |
9a044a89 TT |
5938 | |
5939 | /* User-defined macros are always visible. */ | |
14bc53a8 | 5940 | macro_for_each (macro_user_macros, add_macro_name); |
9a044a89 | 5941 | } |
ef0b411a GB |
5942 | } |
5943 | ||
eb3ff9a5 PA |
5944 | /* Collect all symbols (regardless of class) which begin by matching |
5945 | TEXT. */ | |
41d27058 | 5946 | |
eb3ff9a5 PA |
5947 | void |
5948 | collect_symbol_completion_matches (completion_tracker &tracker, | |
c6756f62 | 5949 | complete_symbol_mode mode, |
b5ec771e | 5950 | symbol_name_match_type name_match_type, |
eb3ff9a5 | 5951 | const char *text, const char *word) |
41d27058 | 5952 | { |
7e56227d AB |
5953 | current_language->collect_symbol_completion_matches (tracker, mode, |
5954 | name_match_type, | |
5955 | text, word, | |
5956 | TYPE_CODE_UNDEF); | |
2f68a895 TT |
5957 | } |
5958 | ||
eb3ff9a5 PA |
5959 | /* Like collect_symbol_completion_matches, but only collect |
5960 | STRUCT_DOMAIN symbols whose type code is CODE. */ | |
2f68a895 | 5961 | |
eb3ff9a5 PA |
5962 | void |
5963 | collect_symbol_completion_matches_type (completion_tracker &tracker, | |
5964 | const char *text, const char *word, | |
5965 | enum type_code code) | |
2f68a895 | 5966 | { |
c6756f62 | 5967 | complete_symbol_mode mode = complete_symbol_mode::EXPRESSION; |
b5ec771e | 5968 | symbol_name_match_type name_match_type = symbol_name_match_type::EXPRESSION; |
c6756f62 | 5969 | |
2f68a895 TT |
5970 | gdb_assert (code == TYPE_CODE_UNION |
5971 | || code == TYPE_CODE_STRUCT | |
2f68a895 | 5972 | || code == TYPE_CODE_ENUM); |
7e56227d AB |
5973 | current_language->collect_symbol_completion_matches (tracker, mode, |
5974 | name_match_type, | |
5975 | text, word, code); | |
41d27058 JB |
5976 | } |
5977 | ||
eb3ff9a5 PA |
5978 | /* Like collect_symbol_completion_matches, but collects a list of |
5979 | symbols defined in all source files named SRCFILE. */ | |
c94fdfd0 | 5980 | |
eb3ff9a5 PA |
5981 | void |
5982 | collect_file_symbol_completion_matches (completion_tracker &tracker, | |
c6756f62 | 5983 | complete_symbol_mode mode, |
b5ec771e | 5984 | symbol_name_match_type name_match_type, |
eb3ff9a5 PA |
5985 | const char *text, const char *word, |
5986 | const char *srcfile) | |
c94fdfd0 | 5987 | { |
c94fdfd0 | 5988 | /* The symbol we are completing on. Points in same buffer as text. */ |
6f937416 | 5989 | const char *sym_text; |
c94fdfd0 EZ |
5990 | |
5991 | /* Now look for the symbol we are supposed to complete on. | |
5992 | FIXME: This should be language-specific. */ | |
c6756f62 PA |
5993 | if (mode == complete_symbol_mode::LINESPEC) |
5994 | sym_text = text; | |
5995 | else | |
01add95b SM |
5996 | { |
5997 | const char *p; | |
5998 | char quote_found; | |
5999 | const char *quote_pos = NULL; | |
c94fdfd0 | 6000 | |
01add95b SM |
6001 | /* First see if this is a quoted string. */ |
6002 | quote_found = '\0'; | |
6003 | for (p = text; *p != '\0'; ++p) | |
6004 | { | |
6005 | if (quote_found != '\0') | |
6006 | { | |
6007 | if (*p == quote_found) | |
6008 | /* Found close quote. */ | |
6009 | quote_found = '\0'; | |
6010 | else if (*p == '\\' && p[1] == quote_found) | |
6011 | /* A backslash followed by the quote character | |
6012 | doesn't end the string. */ | |
6013 | ++p; | |
6014 | } | |
6015 | else if (*p == '\'' || *p == '"') | |
6016 | { | |
6017 | quote_found = *p; | |
6018 | quote_pos = p; | |
6019 | } | |
6020 | } | |
6021 | if (quote_found == '\'') | |
6022 | /* A string within single quotes can be a symbol, so complete on it. */ | |
6023 | sym_text = quote_pos + 1; | |
6024 | else if (quote_found == '"') | |
6025 | /* A double-quoted string is never a symbol, nor does it make sense | |
6026 | to complete it any other way. */ | |
6027 | { | |
6028 | return; | |
6029 | } | |
6030 | else | |
6031 | { | |
6032 | /* Not a quoted string. */ | |
6033 | sym_text = language_search_unquoted_string (text, p); | |
6034 | } | |
6035 | } | |
c94fdfd0 | 6036 | |
1b026119 | 6037 | lookup_name_info lookup_name (sym_text, name_match_type, true); |
b5ec771e | 6038 | |
8f14146e PA |
6039 | /* Go through symtabs for SRCFILE and check the externs and statics |
6040 | for symbols which match. */ | |
6041 | iterate_over_symtabs (srcfile, [&] (symtab *s) | |
c94fdfd0 | 6042 | { |
c6159652 | 6043 | add_symtab_completions (s->compunit (), |
f9d67a22 | 6044 | tracker, mode, lookup_name, |
1b026119 | 6045 | sym_text, word, TYPE_CODE_UNDEF); |
8f14146e PA |
6046 | return false; |
6047 | }); | |
e27852be DE |
6048 | } |
6049 | ||
c94fdfd0 EZ |
6050 | /* A helper function for make_source_files_completion_list. It adds |
6051 | another file name to a list of possible completions, growing the | |
6052 | list as necessary. */ | |
6053 | ||
6054 | static void | |
6f937416 | 6055 | add_filename_to_list (const char *fname, const char *text, const char *word, |
eb3ff9a5 | 6056 | completion_list *list) |
c94fdfd0 | 6057 | { |
60a20c19 | 6058 | list->emplace_back (make_completion_match_str (fname, text, word)); |
c94fdfd0 EZ |
6059 | } |
6060 | ||
6061 | static int | |
6062 | not_interesting_fname (const char *fname) | |
6063 | { | |
6064 | static const char *illegal_aliens[] = { | |
6065 | "_globals_", /* inserted by coff_symtab_read */ | |
6066 | NULL | |
6067 | }; | |
6068 | int i; | |
6069 | ||
6070 | for (i = 0; illegal_aliens[i]; i++) | |
6071 | { | |
0ba1096a | 6072 | if (filename_cmp (fname, illegal_aliens[i]) == 0) |
c94fdfd0 EZ |
6073 | return 1; |
6074 | } | |
6075 | return 0; | |
6076 | } | |
6077 | ||
f4655dee | 6078 | /* An object of this type is passed as the callback argument to |
ccefe4c4 TT |
6079 | map_partial_symbol_filenames. */ |
6080 | struct add_partial_filename_data | |
6081 | { | |
9fdc877b | 6082 | struct filename_seen_cache *filename_seen_cache; |
6f937416 PA |
6083 | const char *text; |
6084 | const char *word; | |
ccefe4c4 | 6085 | int text_len; |
eb3ff9a5 | 6086 | completion_list *list; |
f4655dee TT |
6087 | |
6088 | void operator() (const char *filename, const char *fullname); | |
ccefe4c4 TT |
6089 | }; |
6090 | ||
6091 | /* A callback for map_partial_symbol_filenames. */ | |
eca864fe | 6092 | |
f4655dee TT |
6093 | void |
6094 | add_partial_filename_data::operator() (const char *filename, | |
6095 | const char *fullname) | |
ccefe4c4 | 6096 | { |
ccefe4c4 TT |
6097 | if (not_interesting_fname (filename)) |
6098 | return; | |
f4655dee TT |
6099 | if (!filename_seen_cache->seen (filename) |
6100 | && filename_ncmp (filename, text, text_len) == 0) | |
ccefe4c4 TT |
6101 | { |
6102 | /* This file matches for a completion; add it to the | |
6103 | current list of matches. */ | |
f4655dee | 6104 | add_filename_to_list (filename, text, word, list); |
ccefe4c4 TT |
6105 | } |
6106 | else | |
6107 | { | |
6108 | const char *base_name = lbasename (filename); | |
433759f7 | 6109 | |
ccefe4c4 | 6110 | if (base_name != filename |
f4655dee TT |
6111 | && !filename_seen_cache->seen (base_name) |
6112 | && filename_ncmp (base_name, text, text_len) == 0) | |
6113 | add_filename_to_list (base_name, text, word, list); | |
ccefe4c4 TT |
6114 | } |
6115 | } | |
6116 | ||
eb3ff9a5 | 6117 | /* Return a list of all source files whose names begin with matching |
49c4e619 | 6118 | TEXT. The file names are looked up in the symbol tables of this |
eb3ff9a5 | 6119 | program. */ |
c94fdfd0 | 6120 | |
eb3ff9a5 | 6121 | completion_list |
6f937416 | 6122 | make_source_files_completion_list (const char *text, const char *word) |
c94fdfd0 | 6123 | { |
c94fdfd0 | 6124 | size_t text_len = strlen (text); |
eb3ff9a5 | 6125 | completion_list list; |
31889e00 | 6126 | const char *base_name; |
ccefe4c4 | 6127 | struct add_partial_filename_data datum; |
c94fdfd0 | 6128 | |
c94fdfd0 EZ |
6129 | if (!have_full_symbols () && !have_partial_symbols ()) |
6130 | return list; | |
6131 | ||
bbf2f4df | 6132 | filename_seen_cache filenames_seen; |
9fdc877b | 6133 | |
2030c079 | 6134 | for (objfile *objfile : current_program_space->objfiles ()) |
c94fdfd0 | 6135 | { |
b669c953 | 6136 | for (compunit_symtab *cu : objfile->compunits ()) |
c94fdfd0 | 6137 | { |
102cc235 | 6138 | for (symtab *s : cu->filetabs ()) |
8b31193a TT |
6139 | { |
6140 | if (not_interesting_fname (s->filename)) | |
6141 | continue; | |
6142 | if (!filenames_seen.seen (s->filename) | |
6143 | && filename_ncmp (s->filename, text, text_len) == 0) | |
6144 | { | |
6145 | /* This file matches for a completion; add it to the current | |
6146 | list of matches. */ | |
6147 | add_filename_to_list (s->filename, text, word, &list); | |
6148 | } | |
6149 | else | |
6150 | { | |
6151 | /* NOTE: We allow the user to type a base name when the | |
6152 | debug info records leading directories, but not the other | |
6153 | way around. This is what subroutines of breakpoint | |
6154 | command do when they parse file names. */ | |
6155 | base_name = lbasename (s->filename); | |
6156 | if (base_name != s->filename | |
6157 | && !filenames_seen.seen (base_name) | |
6158 | && filename_ncmp (base_name, text, text_len) == 0) | |
6159 | add_filename_to_list (base_name, text, word, &list); | |
6160 | } | |
6161 | } | |
c94fdfd0 EZ |
6162 | } |
6163 | } | |
6164 | ||
bbf2f4df | 6165 | datum.filename_seen_cache = &filenames_seen; |
ccefe4c4 TT |
6166 | datum.text = text; |
6167 | datum.word = word; | |
6168 | datum.text_len = text_len; | |
6169 | datum.list = &list; | |
f4655dee | 6170 | map_symbol_filenames (datum, false /*need_fullname*/); |
9fdc877b | 6171 | |
c94fdfd0 EZ |
6172 | return list; |
6173 | } | |
c906108c | 6174 | \f |
51cc5b07 | 6175 | /* Track MAIN */ |
32ac0d11 TT |
6176 | |
6177 | /* Return the "main_info" object for the current program space. If | |
6178 | the object has not yet been created, create it and fill in some | |
6179 | default values. */ | |
6180 | ||
6181 | static struct main_info * | |
6182 | get_main_info (void) | |
6183 | { | |
a32ad8c5 | 6184 | struct main_info *info = main_progspace_key.get (current_program_space); |
32ac0d11 TT |
6185 | |
6186 | if (info == NULL) | |
6187 | { | |
3d548a53 TT |
6188 | /* It may seem strange to store the main name in the progspace |
6189 | and also in whatever objfile happens to see a main name in | |
6190 | its debug info. The reason for this is mainly historical: | |
6191 | gdb returned "main" as the name even if no function named | |
6192 | "main" was defined the program; and this approach lets us | |
6193 | keep compatibility. */ | |
a32ad8c5 | 6194 | info = main_progspace_key.emplace (current_program_space); |
32ac0d11 TT |
6195 | } |
6196 | ||
6197 | return info; | |
6198 | } | |
6199 | ||
3d548a53 | 6200 | static void |
9e6c82ad | 6201 | set_main_name (const char *name, enum language lang) |
51cc5b07 | 6202 | { |
32ac0d11 TT |
6203 | struct main_info *info = get_main_info (); |
6204 | ||
25eb2931 | 6205 | if (!info->name_of_main.empty ()) |
51cc5b07 | 6206 | { |
25eb2931 | 6207 | info->name_of_main.clear (); |
32ac0d11 | 6208 | info->language_of_main = language_unknown; |
51cc5b07 AC |
6209 | } |
6210 | if (name != NULL) | |
6211 | { | |
25eb2931 | 6212 | info->name_of_main = name; |
32ac0d11 | 6213 | info->language_of_main = lang; |
51cc5b07 AC |
6214 | } |
6215 | } | |
6216 | ||
ea53e89f JB |
6217 | /* Deduce the name of the main procedure, and set NAME_OF_MAIN |
6218 | accordingly. */ | |
6219 | ||
6220 | static void | |
6221 | find_main_name (void) | |
6222 | { | |
cd6c7346 | 6223 | const char *new_main_name; |
3d548a53 TT |
6224 | |
6225 | /* First check the objfiles to see whether a debuginfo reader has | |
6226 | picked up the appropriate main name. Historically the main name | |
6227 | was found in a more or less random way; this approach instead | |
6228 | relies on the order of objfile creation -- which still isn't | |
6229 | guaranteed to get the correct answer, but is just probably more | |
6230 | accurate. */ | |
2030c079 | 6231 | for (objfile *objfile : current_program_space->objfiles ()) |
aed57c53 TT |
6232 | { |
6233 | if (objfile->per_bfd->name_of_main != NULL) | |
6234 | { | |
6235 | set_main_name (objfile->per_bfd->name_of_main, | |
6236 | objfile->per_bfd->language_of_main); | |
6237 | return; | |
6238 | } | |
6239 | } | |
ea53e89f JB |
6240 | |
6241 | /* Try to see if the main procedure is in Ada. */ | |
6242 | /* FIXME: brobecker/2005-03-07: Another way of doing this would | |
6243 | be to add a new method in the language vector, and call this | |
6244 | method for each language until one of them returns a non-empty | |
6245 | name. This would allow us to remove this hard-coded call to | |
6246 | an Ada function. It is not clear that this is a better approach | |
6247 | at this point, because all methods need to be written in a way | |
c378eb4e | 6248 | such that false positives never be returned. For instance, it is |
ea53e89f JB |
6249 | important that a method does not return a wrong name for the main |
6250 | procedure if the main procedure is actually written in a different | |
6251 | language. It is easy to guaranty this with Ada, since we use a | |
6252 | special symbol generated only when the main in Ada to find the name | |
c378eb4e | 6253 | of the main procedure. It is difficult however to see how this can |
ea53e89f JB |
6254 | be guarantied for languages such as C, for instance. This suggests |
6255 | that order of call for these methods becomes important, which means | |
6256 | a more complicated approach. */ | |
6257 | new_main_name = ada_main_name (); | |
6258 | if (new_main_name != NULL) | |
9af17804 | 6259 | { |
9e6c82ad | 6260 | set_main_name (new_main_name, language_ada); |
ea53e89f JB |
6261 | return; |
6262 | } | |
6263 | ||
63778547 IB |
6264 | new_main_name = d_main_name (); |
6265 | if (new_main_name != NULL) | |
6266 | { | |
6267 | set_main_name (new_main_name, language_d); | |
6268 | return; | |
6269 | } | |
6270 | ||
a766d390 DE |
6271 | new_main_name = go_main_name (); |
6272 | if (new_main_name != NULL) | |
6273 | { | |
9e6c82ad | 6274 | set_main_name (new_main_name, language_go); |
a766d390 DE |
6275 | return; |
6276 | } | |
6277 | ||
cd6c7346 PM |
6278 | new_main_name = pascal_main_name (); |
6279 | if (new_main_name != NULL) | |
9af17804 | 6280 | { |
9e6c82ad | 6281 | set_main_name (new_main_name, language_pascal); |
cd6c7346 PM |
6282 | return; |
6283 | } | |
6284 | ||
ea53e89f JB |
6285 | /* The languages above didn't identify the name of the main procedure. |
6286 | Fallback to "main". */ | |
d3214198 TV |
6287 | |
6288 | /* Try to find language for main in psymtabs. */ | |
531bd038 MM |
6289 | bool symbol_found_p = false; |
6290 | gdbarch_iterate_over_objfiles_in_search_order | |
6291 | (target_gdbarch (), | |
6292 | [&symbol_found_p] (objfile *obj) | |
6293 | { | |
6294 | language lang | |
6295 | = obj->lookup_global_symbol_language ("main", VAR_DOMAIN, | |
6296 | &symbol_found_p); | |
6297 | if (symbol_found_p) | |
6298 | { | |
6299 | set_main_name ("main", lang); | |
6300 | return 1; | |
6301 | } | |
6302 | ||
6303 | return 0; | |
6304 | }, nullptr); | |
6305 | ||
6306 | if (symbol_found_p) | |
6307 | return; | |
d3214198 | 6308 | |
9e6c82ad | 6309 | set_main_name ("main", language_unknown); |
ea53e89f JB |
6310 | } |
6311 | ||
cd215b2e TT |
6312 | /* See symtab.h. */ |
6313 | ||
6314 | const char * | |
6315 | main_name () | |
51cc5b07 | 6316 | { |
32ac0d11 TT |
6317 | struct main_info *info = get_main_info (); |
6318 | ||
25eb2931 | 6319 | if (info->name_of_main.empty ()) |
ea53e89f JB |
6320 | find_main_name (); |
6321 | ||
25eb2931 | 6322 | return info->name_of_main.c_str (); |
51cc5b07 AC |
6323 | } |
6324 | ||
9e6c82ad TT |
6325 | /* Return the language of the main function. If it is not known, |
6326 | return language_unknown. */ | |
6327 | ||
6328 | enum language | |
6329 | main_language (void) | |
6330 | { | |
32ac0d11 TT |
6331 | struct main_info *info = get_main_info (); |
6332 | ||
25eb2931 | 6333 | if (info->name_of_main.empty ()) |
32ac0d11 TT |
6334 | find_main_name (); |
6335 | ||
6336 | return info->language_of_main; | |
9e6c82ad TT |
6337 | } |
6338 | ||
a6c727b2 DJ |
6339 | /* Return 1 if the supplied producer string matches the ARM RealView |
6340 | compiler (armcc). */ | |
6341 | ||
ececd218 | 6342 | bool |
a6c727b2 DJ |
6343 | producer_is_realview (const char *producer) |
6344 | { | |
6345 | static const char *const arm_idents[] = { | |
6346 | "ARM C Compiler, ADS", | |
6347 | "Thumb C Compiler, ADS", | |
6348 | "ARM C++ Compiler, ADS", | |
6349 | "Thumb C++ Compiler, ADS", | |
6350 | "ARM/Thumb C/C++ Compiler, RVCT", | |
6351 | "ARM C/C++ Compiler, RVCT" | |
6352 | }; | |
a6c727b2 DJ |
6353 | |
6354 | if (producer == NULL) | |
ececd218 | 6355 | return false; |
a6c727b2 | 6356 | |
696d6f4d TT |
6357 | for (const char *ident : arm_idents) |
6358 | if (startswith (producer, ident)) | |
ececd218 | 6359 | return true; |
a6c727b2 | 6360 | |
ececd218 | 6361 | return false; |
a6c727b2 | 6362 | } |
ed0616c6 | 6363 | |
f1e6e072 TT |
6364 | \f |
6365 | ||
6366 | /* The next index to hand out in response to a registration request. */ | |
6367 | ||
6368 | static int next_aclass_value = LOC_FINAL_VALUE; | |
6369 | ||
6370 | /* The maximum number of "aclass" registrations we support. This is | |
6371 | constant for convenience. */ | |
658d5e0c | 6372 | #define MAX_SYMBOL_IMPLS (LOC_FINAL_VALUE + 11) |
f1e6e072 TT |
6373 | |
6374 | /* The objects representing the various "aclass" values. The elements | |
6375 | from 0 up to LOC_FINAL_VALUE-1 represent themselves, and subsequent | |
6376 | elements are those registered at gdb initialization time. */ | |
6377 | ||
6378 | static struct symbol_impl symbol_impl[MAX_SYMBOL_IMPLS]; | |
6379 | ||
6380 | /* The globally visible pointer. This is separate from 'symbol_impl' | |
6381 | so that it can be const. */ | |
6382 | ||
6bc3c5b4 | 6383 | gdb::array_view<const struct symbol_impl> symbol_impls (symbol_impl); |
f1e6e072 TT |
6384 | |
6385 | /* Make sure we saved enough room in struct symbol. */ | |
6386 | ||
6387 | gdb_static_assert (MAX_SYMBOL_IMPLS <= (1 << SYMBOL_ACLASS_BITS)); | |
6388 | ||
6389 | /* Register a computed symbol type. ACLASS must be LOC_COMPUTED. OPS | |
6390 | is the ops vector associated with this index. This returns the new | |
6391 | index, which should be used as the aclass_index field for symbols | |
6392 | of this type. */ | |
6393 | ||
6394 | int | |
6395 | register_symbol_computed_impl (enum address_class aclass, | |
6396 | const struct symbol_computed_ops *ops) | |
6397 | { | |
6398 | int result = next_aclass_value++; | |
6399 | ||
6400 | gdb_assert (aclass == LOC_COMPUTED); | |
6401 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6402 | symbol_impl[result].aclass = aclass; | |
6403 | symbol_impl[result].ops_computed = ops; | |
6404 | ||
24d6c2a0 TT |
6405 | /* Sanity check OPS. */ |
6406 | gdb_assert (ops != NULL); | |
6407 | gdb_assert (ops->tracepoint_var_ref != NULL); | |
6408 | gdb_assert (ops->describe_location != NULL); | |
0b31a4bc | 6409 | gdb_assert (ops->get_symbol_read_needs != NULL); |
24d6c2a0 TT |
6410 | gdb_assert (ops->read_variable != NULL); |
6411 | ||
f1e6e072 TT |
6412 | return result; |
6413 | } | |
6414 | ||
6415 | /* Register a function with frame base type. ACLASS must be LOC_BLOCK. | |
6416 | OPS is the ops vector associated with this index. This returns the | |
6417 | new index, which should be used as the aclass_index field for symbols | |
6418 | of this type. */ | |
6419 | ||
6420 | int | |
6421 | register_symbol_block_impl (enum address_class aclass, | |
6422 | const struct symbol_block_ops *ops) | |
6423 | { | |
6424 | int result = next_aclass_value++; | |
6425 | ||
6426 | gdb_assert (aclass == LOC_BLOCK); | |
6427 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6428 | symbol_impl[result].aclass = aclass; | |
6429 | symbol_impl[result].ops_block = ops; | |
6430 | ||
6431 | /* Sanity check OPS. */ | |
6432 | gdb_assert (ops != NULL); | |
36ed3d84 TT |
6433 | gdb_assert (ops->find_frame_base_location != nullptr |
6434 | || ops->get_block_value != nullptr); | |
f1e6e072 TT |
6435 | |
6436 | return result; | |
6437 | } | |
6438 | ||
6439 | /* Register a register symbol type. ACLASS must be LOC_REGISTER or | |
6440 | LOC_REGPARM_ADDR. OPS is the register ops vector associated with | |
6441 | this index. This returns the new index, which should be used as | |
6442 | the aclass_index field for symbols of this type. */ | |
6443 | ||
6444 | int | |
6445 | register_symbol_register_impl (enum address_class aclass, | |
6446 | const struct symbol_register_ops *ops) | |
6447 | { | |
6448 | int result = next_aclass_value++; | |
6449 | ||
6450 | gdb_assert (aclass == LOC_REGISTER || aclass == LOC_REGPARM_ADDR); | |
6451 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6452 | symbol_impl[result].aclass = aclass; | |
6453 | symbol_impl[result].ops_register = ops; | |
6454 | ||
6455 | return result; | |
6456 | } | |
6457 | ||
6458 | /* Initialize elements of 'symbol_impl' for the constants in enum | |
6459 | address_class. */ | |
6460 | ||
6461 | static void | |
6462 | initialize_ordinary_address_classes (void) | |
6463 | { | |
6464 | int i; | |
6465 | ||
6466 | for (i = 0; i < LOC_FINAL_VALUE; ++i) | |
aead7601 | 6467 | symbol_impl[i].aclass = (enum address_class) i; |
f1e6e072 TT |
6468 | } |
6469 | ||
6470 | \f | |
6471 | ||
08be3fe3 DE |
6472 | /* See symtab.h. */ |
6473 | ||
6474 | struct objfile * | |
e19b2d94 | 6475 | symbol::objfile () const |
08be3fe3 | 6476 | { |
e19b2d94 TT |
6477 | gdb_assert (is_objfile_owned ()); |
6478 | return owner.symtab->compunit ()->objfile (); | |
08be3fe3 DE |
6479 | } |
6480 | ||
6481 | /* See symtab.h. */ | |
6482 | ||
6483 | struct gdbarch * | |
bcd6845e | 6484 | symbol::arch () const |
08be3fe3 | 6485 | { |
bcd6845e TT |
6486 | if (!is_objfile_owned ()) |
6487 | return owner.arch; | |
6488 | return owner.symtab->compunit ()->objfile ()->arch (); | |
08be3fe3 DE |
6489 | } |
6490 | ||
6491 | /* See symtab.h. */ | |
6492 | ||
6493 | struct symtab * | |
4206d69e | 6494 | symbol::symtab () const |
08be3fe3 | 6495 | { |
4206d69e TT |
6496 | gdb_assert (is_objfile_owned ()); |
6497 | return owner.symtab; | |
08be3fe3 DE |
6498 | } |
6499 | ||
6500 | /* See symtab.h. */ | |
6501 | ||
6502 | void | |
4206d69e | 6503 | symbol::set_symtab (struct symtab *symtab) |
08be3fe3 | 6504 | { |
4206d69e TT |
6505 | gdb_assert (is_objfile_owned ()); |
6506 | owner.symtab = symtab; | |
08be3fe3 DE |
6507 | } |
6508 | ||
4b610737 TT |
6509 | /* See symtab.h. */ |
6510 | ||
6511 | CORE_ADDR | |
6512 | get_symbol_address (const struct symbol *sym) | |
6513 | { | |
6514 | gdb_assert (sym->maybe_copied); | |
66d7f48f | 6515 | gdb_assert (sym->aclass () == LOC_STATIC); |
4b610737 | 6516 | |
987012b8 | 6517 | const char *linkage_name = sym->linkage_name (); |
47ef0ac7 TT |
6518 | bound_minimal_symbol minsym = lookup_minimal_symbol_linkage (linkage_name, |
6519 | false); | |
6520 | if (minsym.minsym != nullptr) | |
6521 | return minsym.value_address (); | |
4aeddc50 | 6522 | return sym->m_value.address; |
4b610737 TT |
6523 | } |
6524 | ||
6525 | /* See symtab.h. */ | |
6526 | ||
6527 | CORE_ADDR | |
6528 | get_msymbol_address (struct objfile *objf, const struct minimal_symbol *minsym) | |
6529 | { | |
62669649 | 6530 | gdb_assert (minsym->maybe_copied (objf)); |
4b610737 TT |
6531 | gdb_assert ((objf->flags & OBJF_MAINLINE) == 0); |
6532 | ||
c9d95fa3 | 6533 | const char *linkage_name = minsym->linkage_name (); |
47ef0ac7 TT |
6534 | bound_minimal_symbol found = lookup_minimal_symbol_linkage (linkage_name, |
6535 | true); | |
6536 | if (found.minsym != nullptr) | |
6537 | return found.value_address (); | |
4aeddc50 | 6538 | return (minsym->m_value.address |
a52d653e | 6539 | + objf->section_offsets[minsym->section_index ()]); |
4b610737 TT |
6540 | } |
6541 | ||
e623cf5d TT |
6542 | \f |
6543 | ||
165f8965 AB |
6544 | /* Hold the sub-commands of 'info module'. */ |
6545 | ||
6546 | static struct cmd_list_element *info_module_cmdlist = NULL; | |
6547 | ||
165f8965 AB |
6548 | /* See symtab.h. */ |
6549 | ||
6550 | std::vector<module_symbol_search> | |
6551 | search_module_symbols (const char *module_regexp, const char *regexp, | |
6552 | const char *type_regexp, search_domain kind) | |
6553 | { | |
6554 | std::vector<module_symbol_search> results; | |
6555 | ||
6556 | /* Search for all modules matching MODULE_REGEXP. */ | |
470c0b1c AB |
6557 | global_symbol_searcher spec1 (MODULES_DOMAIN, module_regexp); |
6558 | spec1.set_exclude_minsyms (true); | |
6559 | std::vector<symbol_search> modules = spec1.search (); | |
165f8965 AB |
6560 | |
6561 | /* Now search for all symbols of the required KIND matching the required | |
6562 | regular expressions. We figure out which ones are in which modules | |
6563 | below. */ | |
470c0b1c AB |
6564 | global_symbol_searcher spec2 (kind, regexp); |
6565 | spec2.set_symbol_type_regexp (type_regexp); | |
6566 | spec2.set_exclude_minsyms (true); | |
6567 | std::vector<symbol_search> symbols = spec2.search (); | |
165f8965 AB |
6568 | |
6569 | /* Now iterate over all MODULES, checking to see which items from | |
6570 | SYMBOLS are in each module. */ | |
6571 | for (const symbol_search &p : modules) | |
6572 | { | |
6573 | QUIT; | |
6574 | ||
6575 | /* This is a module. */ | |
6576 | gdb_assert (p.symbol != nullptr); | |
6577 | ||
987012b8 | 6578 | std::string prefix = p.symbol->print_name (); |
165f8965 AB |
6579 | prefix += "::"; |
6580 | ||
6581 | for (const symbol_search &q : symbols) | |
6582 | { | |
6583 | if (q.symbol == nullptr) | |
6584 | continue; | |
6585 | ||
987012b8 | 6586 | if (strncmp (q.symbol->print_name (), prefix.c_str (), |
165f8965 AB |
6587 | prefix.size ()) != 0) |
6588 | continue; | |
6589 | ||
6590 | results.push_back ({p, q}); | |
6591 | } | |
6592 | } | |
6593 | ||
6594 | return results; | |
6595 | } | |
6596 | ||
6597 | /* Implement the core of both 'info module functions' and 'info module | |
6598 | variables'. */ | |
6599 | ||
6600 | static void | |
6601 | info_module_subcommand (bool quiet, const char *module_regexp, | |
6602 | const char *regexp, const char *type_regexp, | |
6603 | search_domain kind) | |
6604 | { | |
6605 | /* Print a header line. Don't build the header line bit by bit as this | |
6606 | prevents internationalisation. */ | |
6607 | if (!quiet) | |
6608 | { | |
6609 | if (module_regexp == nullptr) | |
6610 | { | |
6611 | if (type_regexp == nullptr) | |
6612 | { | |
6613 | if (regexp == nullptr) | |
6cb06a8c TT |
6614 | gdb_printf ((kind == VARIABLES_DOMAIN |
6615 | ? _("All variables in all modules:") | |
6616 | : _("All functions in all modules:"))); | |
165f8965 | 6617 | else |
6cb06a8c | 6618 | gdb_printf |
165f8965 AB |
6619 | ((kind == VARIABLES_DOMAIN |
6620 | ? _("All variables matching regular expression" | |
6621 | " \"%s\" in all modules:") | |
6622 | : _("All functions matching regular expression" | |
6623 | " \"%s\" in all modules:")), | |
6624 | regexp); | |
6625 | } | |
6626 | else | |
6627 | { | |
6628 | if (regexp == nullptr) | |
6cb06a8c | 6629 | gdb_printf |
165f8965 AB |
6630 | ((kind == VARIABLES_DOMAIN |
6631 | ? _("All variables with type matching regular " | |
6632 | "expression \"%s\" in all modules:") | |
6633 | : _("All functions with type matching regular " | |
6634 | "expression \"%s\" in all modules:")), | |
6635 | type_regexp); | |
6636 | else | |
6cb06a8c | 6637 | gdb_printf |
165f8965 AB |
6638 | ((kind == VARIABLES_DOMAIN |
6639 | ? _("All variables matching regular expression " | |
6640 | "\"%s\",\n\twith type matching regular " | |
6641 | "expression \"%s\" in all modules:") | |
6642 | : _("All functions matching regular expression " | |
6643 | "\"%s\",\n\twith type matching regular " | |
6644 | "expression \"%s\" in all modules:")), | |
6645 | regexp, type_regexp); | |
6646 | } | |
6647 | } | |
6648 | else | |
6649 | { | |
6650 | if (type_regexp == nullptr) | |
6651 | { | |
6652 | if (regexp == nullptr) | |
6cb06a8c | 6653 | gdb_printf |
165f8965 AB |
6654 | ((kind == VARIABLES_DOMAIN |
6655 | ? _("All variables in all modules matching regular " | |
6656 | "expression \"%s\":") | |
6657 | : _("All functions in all modules matching regular " | |
6658 | "expression \"%s\":")), | |
6659 | module_regexp); | |
6660 | else | |
6cb06a8c | 6661 | gdb_printf |
165f8965 AB |
6662 | ((kind == VARIABLES_DOMAIN |
6663 | ? _("All variables matching regular expression " | |
6664 | "\"%s\",\n\tin all modules matching regular " | |
6665 | "expression \"%s\":") | |
6666 | : _("All functions matching regular expression " | |
6667 | "\"%s\",\n\tin all modules matching regular " | |
6668 | "expression \"%s\":")), | |
6669 | regexp, module_regexp); | |
6670 | } | |
6671 | else | |
6672 | { | |
6673 | if (regexp == nullptr) | |
6cb06a8c | 6674 | gdb_printf |
165f8965 AB |
6675 | ((kind == VARIABLES_DOMAIN |
6676 | ? _("All variables with type matching regular " | |
6677 | "expression \"%s\"\n\tin all modules matching " | |
6678 | "regular expression \"%s\":") | |
6679 | : _("All functions with type matching regular " | |
6680 | "expression \"%s\"\n\tin all modules matching " | |
6681 | "regular expression \"%s\":")), | |
6682 | type_regexp, module_regexp); | |
6683 | else | |
6cb06a8c | 6684 | gdb_printf |
165f8965 AB |
6685 | ((kind == VARIABLES_DOMAIN |
6686 | ? _("All variables matching regular expression " | |
6687 | "\"%s\",\n\twith type matching regular expression " | |
6688 | "\"%s\",\n\tin all modules matching regular " | |
6689 | "expression \"%s\":") | |
6690 | : _("All functions matching regular expression " | |
6691 | "\"%s\",\n\twith type matching regular expression " | |
6692 | "\"%s\",\n\tin all modules matching regular " | |
6693 | "expression \"%s\":")), | |
6694 | regexp, type_regexp, module_regexp); | |
6695 | } | |
6696 | } | |
6cb06a8c | 6697 | gdb_printf ("\n"); |
165f8965 AB |
6698 | } |
6699 | ||
6700 | /* Find all symbols of type KIND matching the given regular expressions | |
6701 | along with the symbols for the modules in which those symbols | |
6702 | reside. */ | |
6703 | std::vector<module_symbol_search> module_symbols | |
6704 | = search_module_symbols (module_regexp, regexp, type_regexp, kind); | |
6705 | ||
6706 | std::sort (module_symbols.begin (), module_symbols.end (), | |
6707 | [] (const module_symbol_search &a, const module_symbol_search &b) | |
6708 | { | |
6709 | if (a.first < b.first) | |
6710 | return true; | |
6711 | else if (a.first == b.first) | |
6712 | return a.second < b.second; | |
6713 | else | |
6714 | return false; | |
6715 | }); | |
6716 | ||
6717 | const char *last_filename = ""; | |
6718 | const symbol *last_module_symbol = nullptr; | |
6719 | for (const module_symbol_search &ms : module_symbols) | |
6720 | { | |
6721 | const symbol_search &p = ms.first; | |
6722 | const symbol_search &q = ms.second; | |
6723 | ||
6724 | gdb_assert (q.symbol != nullptr); | |
6725 | ||
6726 | if (last_module_symbol != p.symbol) | |
6727 | { | |
6cb06a8c TT |
6728 | gdb_printf ("\n"); |
6729 | gdb_printf (_("Module \"%s\":\n"), p.symbol->print_name ()); | |
165f8965 AB |
6730 | last_module_symbol = p.symbol; |
6731 | last_filename = ""; | |
6732 | } | |
6733 | ||
6734 | print_symbol_info (FUNCTIONS_DOMAIN, q.symbol, q.block, | |
6735 | last_filename); | |
6736 | last_filename | |
4206d69e | 6737 | = symtab_to_filename_for_display (q.symbol->symtab ()); |
165f8965 AB |
6738 | } |
6739 | } | |
6740 | ||
6741 | /* Hold the option values for the 'info module .....' sub-commands. */ | |
6742 | ||
6743 | struct info_modules_var_func_options | |
6744 | { | |
6745 | bool quiet = false; | |
e0700ba4 SM |
6746 | std::string type_regexp; |
6747 | std::string module_regexp; | |
165f8965 AB |
6748 | }; |
6749 | ||
6750 | /* The options used by 'info module variables' and 'info module functions' | |
6751 | commands. */ | |
6752 | ||
6753 | static const gdb::option::option_def info_modules_var_func_options_defs [] = { | |
6754 | gdb::option::boolean_option_def<info_modules_var_func_options> { | |
6755 | "q", | |
6756 | [] (info_modules_var_func_options *opt) { return &opt->quiet; }, | |
6757 | nullptr, /* show_cmd_cb */ | |
6758 | nullptr /* set_doc */ | |
6759 | }, | |
6760 | ||
6761 | gdb::option::string_option_def<info_modules_var_func_options> { | |
6762 | "t", | |
6763 | [] (info_modules_var_func_options *opt) { return &opt->type_regexp; }, | |
6764 | nullptr, /* show_cmd_cb */ | |
6765 | nullptr /* set_doc */ | |
6766 | }, | |
6767 | ||
6768 | gdb::option::string_option_def<info_modules_var_func_options> { | |
6769 | "m", | |
6770 | [] (info_modules_var_func_options *opt) { return &opt->module_regexp; }, | |
6771 | nullptr, /* show_cmd_cb */ | |
6772 | nullptr /* set_doc */ | |
6773 | } | |
6774 | }; | |
6775 | ||
6776 | /* Return the option group used by the 'info module ...' sub-commands. */ | |
6777 | ||
6778 | static inline gdb::option::option_def_group | |
6779 | make_info_modules_var_func_options_def_group | |
6780 | (info_modules_var_func_options *opts) | |
6781 | { | |
6782 | return {{info_modules_var_func_options_defs}, opts}; | |
6783 | } | |
6784 | ||
6785 | /* Implements the 'info module functions' command. */ | |
6786 | ||
6787 | static void | |
6788 | info_module_functions_command (const char *args, int from_tty) | |
6789 | { | |
6790 | info_modules_var_func_options opts; | |
6791 | auto grp = make_info_modules_var_func_options_def_group (&opts); | |
6792 | gdb::option::process_options | |
6793 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
6794 | if (args != nullptr && *args == '\0') | |
6795 | args = nullptr; | |
6796 | ||
e0700ba4 SM |
6797 | info_module_subcommand |
6798 | (opts.quiet, | |
6799 | opts.module_regexp.empty () ? nullptr : opts.module_regexp.c_str (), args, | |
6800 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
6801 | FUNCTIONS_DOMAIN); | |
165f8965 AB |
6802 | } |
6803 | ||
6804 | /* Implements the 'info module variables' command. */ | |
6805 | ||
6806 | static void | |
6807 | info_module_variables_command (const char *args, int from_tty) | |
6808 | { | |
6809 | info_modules_var_func_options opts; | |
6810 | auto grp = make_info_modules_var_func_options_def_group (&opts); | |
6811 | gdb::option::process_options | |
6812 | (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp); | |
6813 | if (args != nullptr && *args == '\0') | |
6814 | args = nullptr; | |
6815 | ||
e0700ba4 SM |
6816 | info_module_subcommand |
6817 | (opts.quiet, | |
6818 | opts.module_regexp.empty () ? nullptr : opts.module_regexp.c_str (), args, | |
6819 | opts.type_regexp.empty () ? nullptr : opts.type_regexp.c_str (), | |
6820 | VARIABLES_DOMAIN); | |
165f8965 AB |
6821 | } |
6822 | ||
6823 | /* Command completer for 'info module ...' sub-commands. */ | |
6824 | ||
6825 | static void | |
6826 | info_module_var_func_command_completer (struct cmd_list_element *ignore, | |
6827 | completion_tracker &tracker, | |
6828 | const char *text, | |
6829 | const char * /* word */) | |
6830 | { | |
6831 | ||
6832 | const auto group = make_info_modules_var_func_options_def_group (nullptr); | |
6833 | if (gdb::option::complete_options | |
6834 | (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group)) | |
6835 | return; | |
6836 | ||
6837 | const char *word = advance_to_expression_complete_word_point (tracker, text); | |
6838 | symbol_completer (ignore, tracker, text, word); | |
6839 | } | |
6840 | ||
6841 | \f | |
6842 | ||
6c265988 | 6843 | void _initialize_symtab (); |
c906108c | 6844 | void |
6c265988 | 6845 | _initialize_symtab () |
c906108c | 6846 | { |
60cfcb20 AB |
6847 | cmd_list_element *c; |
6848 | ||
f1e6e072 TT |
6849 | initialize_ordinary_address_classes (); |
6850 | ||
60cfcb20 AB |
6851 | c = add_info ("variables", info_variables_command, |
6852 | info_print_args_help (_("\ | |
12615cba | 6853 | All global and static variable names or those matching REGEXPs.\n\ |
4acfdd20 | 6854 | Usage: info variables [-q] [-n] [-t TYPEREGEXP] [NAMEREGEXP]\n\ |
12615cba | 6855 | Prints the global and static variables.\n"), |
4acfdd20 AB |
6856 | _("global and static variables"), |
6857 | true)); | |
095252be | 6858 | set_cmd_completer_handle_brkchars (c, info_vars_funcs_command_completer); |
c906108c | 6859 | |
60cfcb20 AB |
6860 | c = add_info ("functions", info_functions_command, |
6861 | info_print_args_help (_("\ | |
12615cba | 6862 | All function names or those matching REGEXPs.\n\ |
4acfdd20 | 6863 | Usage: info functions [-q] [-n] [-t TYPEREGEXP] [NAMEREGEXP]\n\ |
12615cba | 6864 | Prints the functions.\n"), |
4acfdd20 AB |
6865 | _("functions"), |
6866 | true)); | |
095252be | 6867 | set_cmd_completer_handle_brkchars (c, info_vars_funcs_command_completer); |
c906108c | 6868 | |
a8eab7c6 AB |
6869 | c = add_info ("types", info_types_command, _("\ |
6870 | All type names, or those matching REGEXP.\n\ | |
6871 | Usage: info types [-q] [REGEXP]\n\ | |
6872 | Print information about all types matching REGEXP, or all types if no\n\ | |
6873 | REGEXP is given. The optional flag -q disables printing of headers.")); | |
6874 | set_cmd_completer_handle_brkchars (c, info_types_command_completer); | |
c906108c | 6875 | |
0e350a05 AB |
6876 | const auto info_sources_opts |
6877 | = make_info_sources_options_def_group (nullptr); | |
28cd9371 PW |
6878 | |
6879 | static std::string info_sources_help | |
6880 | = gdb::option::build_help (_("\ | |
6881 | All source files in the program or those matching REGEXP.\n\ | |
6882 | Usage: info sources [OPTION]... [REGEXP]\n\ | |
6883 | By default, REGEXP is used to match anywhere in the filename.\n\ | |
6884 | \n\ | |
6885 | Options:\n\ | |
6886 | %OPTIONS%"), | |
6887 | info_sources_opts); | |
6888 | ||
6889 | c = add_info ("sources", info_sources_command, info_sources_help.c_str ()); | |
6890 | set_cmd_completer_handle_brkchars (c, info_sources_command_completer); | |
c906108c | 6891 | |
59c35742 AB |
6892 | c = add_info ("modules", info_modules_command, |
6893 | _("All module names, or those matching REGEXP.")); | |
6894 | set_cmd_completer_handle_brkchars (c, info_types_command_completer); | |
6895 | ||
03d83cd5 RB |
6896 | add_info ("main", info_main_command, |
6897 | _("Get main symbol to identify entry point into program.")); | |
6898 | ||
0743fc83 | 6899 | add_basic_prefix_cmd ("module", class_info, _("\ |
165f8965 | 6900 | Print information about modules."), |
2f822da5 | 6901 | &info_module_cmdlist, 0, &infolist); |
165f8965 AB |
6902 | |
6903 | c = add_cmd ("functions", class_info, info_module_functions_command, _("\ | |
6904 | Display functions arranged by modules.\n\ | |
6905 | Usage: info module functions [-q] [-m MODREGEXP] [-t TYPEREGEXP] [REGEXP]\n\ | |
6906 | Print a summary of all functions within each Fortran module, grouped by\n\ | |
6907 | module and file. For each function the line on which the function is\n\ | |
6908 | defined is given along with the type signature and name of the function.\n\ | |
6909 | \n\ | |
6910 | If REGEXP is provided then only functions whose name matches REGEXP are\n\ | |
6911 | listed. If MODREGEXP is provided then only functions in modules matching\n\ | |
6912 | MODREGEXP are listed. If TYPEREGEXP is given then only functions whose\n\ | |
6913 | type signature matches TYPEREGEXP are listed.\n\ | |
6914 | \n\ | |
6915 | The -q flag suppresses printing some header information."), | |
6916 | &info_module_cmdlist); | |
6917 | set_cmd_completer_handle_brkchars | |
6918 | (c, info_module_var_func_command_completer); | |
6919 | ||
6920 | c = add_cmd ("variables", class_info, info_module_variables_command, _("\ | |
6921 | Display variables arranged by modules.\n\ | |
6922 | Usage: info module variables [-q] [-m MODREGEXP] [-t TYPEREGEXP] [REGEXP]\n\ | |
6923 | Print a summary of all variables within each Fortran module, grouped by\n\ | |
6924 | module and file. For each variable the line on which the variable is\n\ | |
6925 | defined is given along with the type and name of the variable.\n\ | |
6926 | \n\ | |
6927 | If REGEXP is provided then only variables whose name matches REGEXP are\n\ | |
6928 | listed. If MODREGEXP is provided then only variables in modules matching\n\ | |
6929 | MODREGEXP are listed. If TYPEREGEXP is given then only variables whose\n\ | |
6930 | type matches TYPEREGEXP are listed.\n\ | |
6931 | \n\ | |
6932 | The -q flag suppresses printing some header information."), | |
6933 | &info_module_cmdlist); | |
6934 | set_cmd_completer_handle_brkchars | |
6935 | (c, info_module_var_func_command_completer); | |
6936 | ||
c906108c | 6937 | add_com ("rbreak", class_breakpoint, rbreak_command, |
1bedd215 | 6938 | _("Set a breakpoint for all functions matching REGEXP.")); |
c906108c | 6939 | |
717d2f5a | 6940 | add_setshow_enum_cmd ("multiple-symbols", no_class, |
dda83cd7 SM |
6941 | multiple_symbols_modes, &multiple_symbols_mode, |
6942 | _("\ | |
590042fc | 6943 | Set how the debugger handles ambiguities in expressions."), _("\ |
717d2f5a JB |
6944 | Show how the debugger handles ambiguities in expressions."), _("\ |
6945 | Valid values are \"ask\", \"all\", \"cancel\", and the default is \"all\"."), | |
dda83cd7 | 6946 | NULL, NULL, &setlist, &showlist); |
717d2f5a | 6947 | |
c011a4f4 DE |
6948 | add_setshow_boolean_cmd ("basenames-may-differ", class_obscure, |
6949 | &basenames_may_differ, _("\ | |
6950 | Set whether a source file may have multiple base names."), _("\ | |
6951 | Show whether a source file may have multiple base names."), _("\ | |
6952 | (A \"base name\" is the name of a file with the directory part removed.\n\ | |
6953 | Example: The base name of \"/home/user/hello.c\" is \"hello.c\".)\n\ | |
6954 | If set, GDB will canonicalize file names (e.g., expand symlinks)\n\ | |
6955 | before comparing them. Canonicalization is an expensive operation,\n\ | |
6956 | but it allows the same file be known by more than one base name.\n\ | |
6957 | If not set (the default), all source files are assumed to have just\n\ | |
6958 | one base name, and gdb will do file name comparisons more efficiently."), | |
6959 | NULL, NULL, | |
6960 | &setlist, &showlist); | |
6961 | ||
db0fec5c DE |
6962 | add_setshow_zuinteger_cmd ("symtab-create", no_class, &symtab_create_debug, |
6963 | _("Set debugging of symbol table creation."), | |
6964 | _("Show debugging of symbol table creation."), _("\ | |
6965 | When enabled (non-zero), debugging messages are printed when building\n\ | |
6966 | symbol tables. A value of 1 (one) normally provides enough information.\n\ | |
6967 | A value greater than 1 provides more verbose information."), | |
6968 | NULL, | |
6969 | NULL, | |
6970 | &setdebuglist, &showdebuglist); | |
45cfd468 | 6971 | |
cc485e62 DE |
6972 | add_setshow_zuinteger_cmd ("symbol-lookup", no_class, &symbol_lookup_debug, |
6973 | _("\ | |
6974 | Set debugging of symbol lookup."), _("\ | |
6975 | Show debugging of symbol lookup."), _("\ | |
6976 | When enabled (non-zero), symbol lookups are logged."), | |
6977 | NULL, NULL, | |
6978 | &setdebuglist, &showdebuglist); | |
6979 | ||
f57d2163 DE |
6980 | add_setshow_zuinteger_cmd ("symbol-cache-size", no_class, |
6981 | &new_symbol_cache_size, | |
6982 | _("Set the size of the symbol cache."), | |
6983 | _("Show the size of the symbol cache."), _("\ | |
6984 | The size of the symbol cache.\n\ | |
6985 | If zero then the symbol cache is disabled."), | |
6986 | set_symbol_cache_size_handler, NULL, | |
6987 | &maintenance_set_cmdlist, | |
6988 | &maintenance_show_cmdlist); | |
6989 | ||
6109f7a3 LS |
6990 | add_setshow_boolean_cmd ("ignore-prologue-end-flag", no_class, |
6991 | &ignore_prologue_end_flag, | |
6992 | _("Set if the PROLOGUE-END flag is ignored."), | |
6993 | _("Show if the PROLOGUE-END flag is ignored."), | |
6994 | _("\ | |
6995 | The PROLOGUE-END flag from the line-table entries is used to place \ | |
a383ee40 | 6996 | breakpoints past the prologue of functions. Disabling its use forces \ |
6109f7a3 LS |
6997 | the use of prologue scanners."), |
6998 | nullptr, nullptr, | |
6999 | &maintenance_set_cmdlist, | |
7000 | &maintenance_show_cmdlist); | |
7001 | ||
7002 | ||
f57d2163 DE |
7003 | add_cmd ("symbol-cache", class_maintenance, maintenance_print_symbol_cache, |
7004 | _("Dump the symbol cache for each program space."), | |
7005 | &maintenanceprintlist); | |
7006 | ||
7007 | add_cmd ("symbol-cache-statistics", class_maintenance, | |
7008 | maintenance_print_symbol_cache_statistics, | |
7009 | _("Print symbol cache statistics for each program space."), | |
7010 | &maintenanceprintlist); | |
7011 | ||
5e84b7ee SM |
7012 | cmd_list_element *maintenance_flush_symbol_cache_cmd |
7013 | = add_cmd ("symbol-cache", class_maintenance, | |
7014 | maintenance_flush_symbol_cache, | |
7015 | _("Flush the symbol cache for each program space."), | |
7016 | &maintenanceflushlist); | |
7017 | c = add_alias_cmd ("flush-symbol-cache", maintenance_flush_symbol_cache_cmd, | |
50a5f187 AB |
7018 | class_maintenance, 0, &maintenancelist); |
7019 | deprecate_cmd (c, "maintenancelist flush symbol-cache"); | |
f57d2163 | 7020 | |
c90e7d63 SM |
7021 | gdb::observers::new_objfile.attach (symtab_new_objfile_observer, "symtab"); |
7022 | gdb::observers::free_objfile.attach (symtab_free_objfile_observer, "symtab"); | |
c906108c | 7023 | } |