Commit | Line | Data |
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c906108c | 1 | /* Symbol table lookup for the GNU debugger, GDB. |
8926118c | 2 | |
32d0add0 | 3 | Copyright (C) 1986-2015 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" | |
21 | #include "symtab.h" | |
22 | #include "gdbtypes.h" | |
23 | #include "gdbcore.h" | |
24 | #include "frame.h" | |
25 | #include "target.h" | |
26 | #include "value.h" | |
27 | #include "symfile.h" | |
28 | #include "objfiles.h" | |
29 | #include "gdbcmd.h" | |
88987551 | 30 | #include "gdb_regex.h" |
c906108c SS |
31 | #include "expression.h" |
32 | #include "language.h" | |
33 | #include "demangle.h" | |
34 | #include "inferior.h" | |
0378c332 | 35 | #include "source.h" |
a7fdf62f | 36 | #include "filenames.h" /* for FILENAME_CMP */ |
1bae87b9 | 37 | #include "objc-lang.h" |
6aecb9c2 | 38 | #include "d-lang.h" |
1f8173e6 | 39 | #include "ada-lang.h" |
a766d390 | 40 | #include "go-lang.h" |
cd6c7346 | 41 | #include "p-lang.h" |
ff013f42 | 42 | #include "addrmap.h" |
529480d0 | 43 | #include "cli/cli-utils.h" |
c906108c | 44 | |
2de7ced7 DJ |
45 | #include "hashtab.h" |
46 | ||
04ea0df1 | 47 | #include "gdb_obstack.h" |
fe898f56 | 48 | #include "block.h" |
de4f826b | 49 | #include "dictionary.h" |
c906108c SS |
50 | |
51 | #include <sys/types.h> | |
52 | #include <fcntl.h> | |
53ce3c39 | 53 | #include <sys/stat.h> |
c906108c | 54 | #include <ctype.h> |
015a42b4 | 55 | #include "cp-abi.h" |
71c25dea | 56 | #include "cp-support.h" |
ea53e89f | 57 | #include "observer.h" |
3a40aaa0 | 58 | #include "solist.h" |
9a044a89 TT |
59 | #include "macrotab.h" |
60 | #include "macroscope.h" | |
c906108c | 61 | |
270140bd | 62 | #include "parser-defs.h" |
ccefe4c4 | 63 | |
ff6c39cf | 64 | /* Forward declarations for local functions. */ |
c906108c | 65 | |
a14ed312 | 66 | static void rbreak_command (char *, int); |
c906108c | 67 | |
f8eba3c6 | 68 | static int find_line_common (struct linetable *, int, int *, int); |
c906108c | 69 | |
3121eff0 | 70 | static struct symbol *lookup_symbol_aux (const char *name, |
3121eff0 | 71 | const struct block *block, |
176620f1 | 72 | const domain_enum domain, |
53c5240f | 73 | enum language language, |
cf901d3b | 74 | struct field_of_this_result *); |
fba7f19c | 75 | |
e4051eeb | 76 | static |
74016e12 DE |
77 | struct symbol *lookup_local_symbol (const char *name, |
78 | const struct block *block, | |
79 | const domain_enum domain, | |
80 | enum language language); | |
8155455b | 81 | |
6c1c7be3 | 82 | static struct symbol * |
fe2a438d DE |
83 | lookup_symbol_in_objfile (struct objfile *objfile, int block_index, |
84 | const char *name, const domain_enum domain); | |
c906108c | 85 | |
ff6c39cf | 86 | extern initialize_file_ftype _initialize_symtab; |
c906108c | 87 | |
32ac0d11 TT |
88 | /* Program space key for finding name and language of "main". */ |
89 | ||
90 | static const struct program_space_data *main_progspace_key; | |
91 | ||
92 | /* Type of the data stored on the program space. */ | |
93 | ||
94 | struct main_info | |
95 | { | |
96 | /* Name of "main". */ | |
97 | ||
98 | char *name_of_main; | |
99 | ||
100 | /* Language of "main". */ | |
101 | ||
102 | enum language language_of_main; | |
103 | }; | |
104 | ||
f57d2163 DE |
105 | /* Program space key for finding its symbol cache. */ |
106 | ||
107 | static const struct program_space_data *symbol_cache_key; | |
108 | ||
109 | /* The default symbol cache size. | |
110 | There is no extra cpu cost for large N (except when flushing the cache, | |
111 | which is rare). The value here is just a first attempt. A better default | |
112 | value may be higher or lower. A prime number can make up for a bad hash | |
113 | computation, so that's why the number is what it is. */ | |
114 | #define DEFAULT_SYMBOL_CACHE_SIZE 1021 | |
115 | ||
116 | /* The maximum symbol cache size. | |
117 | There's no method to the decision of what value to use here, other than | |
118 | there's no point in allowing a user typo to make gdb consume all memory. */ | |
119 | #define MAX_SYMBOL_CACHE_SIZE (1024*1024) | |
120 | ||
121 | /* symbol_cache_lookup returns this if a previous lookup failed to find the | |
122 | symbol in any objfile. */ | |
123 | #define SYMBOL_LOOKUP_FAILED ((struct symbol *) 1) | |
124 | ||
125 | /* Recording lookups that don't find the symbol is just as important, if not | |
126 | more so, than recording found symbols. */ | |
127 | ||
128 | enum symbol_cache_slot_state | |
129 | { | |
130 | SYMBOL_SLOT_UNUSED, | |
131 | SYMBOL_SLOT_NOT_FOUND, | |
132 | SYMBOL_SLOT_FOUND | |
133 | }; | |
134 | ||
135 | /* Symbols don't specify global vs static block. | |
136 | So keep them in separate caches. */ | |
137 | ||
138 | struct block_symbol_cache | |
139 | { | |
140 | unsigned int hits; | |
141 | unsigned int misses; | |
142 | unsigned int collisions; | |
143 | ||
144 | /* SYMBOLS is a variable length array of this size. | |
145 | One can imagine that in general one cache (global/static) should be a | |
146 | fraction of the size of the other, but there's no data at the moment | |
147 | on which to decide. */ | |
148 | unsigned int size; | |
149 | ||
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 | { | |
174 | struct symbol *found; | |
175 | struct | |
176 | { | |
177 | char *name; | |
178 | domain_enum domain; | |
179 | } not_found; | |
180 | } value; | |
181 | } symbols[1]; | |
182 | }; | |
183 | ||
184 | /* The symbol cache. | |
185 | ||
186 | Searching for symbols in the static and global blocks over multiple objfiles | |
187 | again and again can be slow, as can searching very big objfiles. This is a | |
188 | simple cache to improve symbol lookup performance, which is critical to | |
189 | overall gdb performance. | |
190 | ||
191 | Symbols are hashed on the name, its domain, and block. | |
192 | They are also hashed on their objfile for objfile-specific lookups. */ | |
193 | ||
194 | struct symbol_cache | |
195 | { | |
196 | struct block_symbol_cache *global_symbols; | |
197 | struct block_symbol_cache *static_symbols; | |
198 | }; | |
199 | ||
45cfd468 | 200 | /* When non-zero, print debugging messages related to symtab creation. */ |
db0fec5c | 201 | unsigned int symtab_create_debug = 0; |
45cfd468 | 202 | |
cc485e62 DE |
203 | /* When non-zero, print debugging messages related to symbol lookup. */ |
204 | unsigned int symbol_lookup_debug = 0; | |
205 | ||
f57d2163 DE |
206 | /* The size of the cache is staged here. */ |
207 | static unsigned int new_symbol_cache_size = DEFAULT_SYMBOL_CACHE_SIZE; | |
208 | ||
209 | /* The current value of the symbol cache size. | |
210 | This is saved so that if the user enters a value too big we can restore | |
211 | the original value from here. */ | |
212 | static unsigned int symbol_cache_size = DEFAULT_SYMBOL_CACHE_SIZE; | |
213 | ||
c011a4f4 DE |
214 | /* Non-zero if a file may be known by two different basenames. |
215 | This is the uncommon case, and significantly slows down gdb. | |
216 | Default set to "off" to not slow down the common case. */ | |
217 | int basenames_may_differ = 0; | |
218 | ||
717d2f5a JB |
219 | /* Allow the user to configure the debugger behavior with respect |
220 | to multiple-choice menus when more than one symbol matches during | |
221 | a symbol lookup. */ | |
222 | ||
7fc830e2 MK |
223 | const char multiple_symbols_ask[] = "ask"; |
224 | const char multiple_symbols_all[] = "all"; | |
225 | const char multiple_symbols_cancel[] = "cancel"; | |
40478521 | 226 | static const char *const multiple_symbols_modes[] = |
717d2f5a JB |
227 | { |
228 | multiple_symbols_ask, | |
229 | multiple_symbols_all, | |
230 | multiple_symbols_cancel, | |
231 | NULL | |
232 | }; | |
233 | static const char *multiple_symbols_mode = multiple_symbols_all; | |
234 | ||
235 | /* Read-only accessor to AUTO_SELECT_MODE. */ | |
236 | ||
237 | const char * | |
238 | multiple_symbols_select_mode (void) | |
239 | { | |
240 | return multiple_symbols_mode; | |
241 | } | |
242 | ||
c906108c | 243 | /* Block in which the most recently searched-for symbol was found. |
9af17804 | 244 | Might be better to make this a parameter to lookup_symbol and |
c378eb4e | 245 | value_of_this. */ |
c906108c SS |
246 | |
247 | const struct block *block_found; | |
248 | ||
20c681d1 DE |
249 | /* Return the name of a domain_enum. */ |
250 | ||
251 | const char * | |
252 | domain_name (domain_enum e) | |
253 | { | |
254 | switch (e) | |
255 | { | |
256 | case UNDEF_DOMAIN: return "UNDEF_DOMAIN"; | |
257 | case VAR_DOMAIN: return "VAR_DOMAIN"; | |
258 | case STRUCT_DOMAIN: return "STRUCT_DOMAIN"; | |
540feddf | 259 | case MODULE_DOMAIN: return "MODULE_DOMAIN"; |
20c681d1 DE |
260 | case LABEL_DOMAIN: return "LABEL_DOMAIN"; |
261 | case COMMON_BLOCK_DOMAIN: return "COMMON_BLOCK_DOMAIN"; | |
262 | default: gdb_assert_not_reached ("bad domain_enum"); | |
263 | } | |
264 | } | |
265 | ||
266 | /* Return the name of a search_domain . */ | |
267 | ||
268 | const char * | |
269 | search_domain_name (enum search_domain e) | |
270 | { | |
271 | switch (e) | |
272 | { | |
273 | case VARIABLES_DOMAIN: return "VARIABLES_DOMAIN"; | |
274 | case FUNCTIONS_DOMAIN: return "FUNCTIONS_DOMAIN"; | |
275 | case TYPES_DOMAIN: return "TYPES_DOMAIN"; | |
276 | case ALL_DOMAIN: return "ALL_DOMAIN"; | |
277 | default: gdb_assert_not_reached ("bad search_domain"); | |
278 | } | |
279 | } | |
280 | ||
43f3e411 | 281 | /* See symtab.h. */ |
db0fec5c | 282 | |
43f3e411 DE |
283 | struct symtab * |
284 | compunit_primary_filetab (const struct compunit_symtab *cust) | |
db0fec5c | 285 | { |
43f3e411 | 286 | gdb_assert (COMPUNIT_FILETABS (cust) != NULL); |
db0fec5c | 287 | |
43f3e411 DE |
288 | /* The primary file symtab is the first one in the list. */ |
289 | return COMPUNIT_FILETABS (cust); | |
290 | } | |
291 | ||
292 | /* See symtab.h. */ | |
293 | ||
294 | enum language | |
295 | compunit_language (const struct compunit_symtab *cust) | |
296 | { | |
297 | struct symtab *symtab = compunit_primary_filetab (cust); | |
298 | ||
299 | /* The language of the compunit symtab is the language of its primary | |
300 | source file. */ | |
301 | return SYMTAB_LANGUAGE (symtab); | |
db0fec5c DE |
302 | } |
303 | ||
4aac40c8 TT |
304 | /* See whether FILENAME matches SEARCH_NAME using the rule that we |
305 | advertise to the user. (The manual's description of linespecs | |
af529f8f JK |
306 | describes what we advertise). Returns true if they match, false |
307 | otherwise. */ | |
4aac40c8 TT |
308 | |
309 | int | |
b57a636e | 310 | compare_filenames_for_search (const char *filename, const char *search_name) |
4aac40c8 TT |
311 | { |
312 | int len = strlen (filename); | |
b57a636e | 313 | size_t search_len = strlen (search_name); |
4aac40c8 TT |
314 | |
315 | if (len < search_len) | |
316 | return 0; | |
317 | ||
318 | /* The tail of FILENAME must match. */ | |
319 | if (FILENAME_CMP (filename + len - search_len, search_name) != 0) | |
320 | return 0; | |
321 | ||
322 | /* Either the names must completely match, or the character | |
323 | preceding the trailing SEARCH_NAME segment of FILENAME must be a | |
d84fca2c JK |
324 | directory separator. |
325 | ||
af529f8f JK |
326 | The check !IS_ABSOLUTE_PATH ensures SEARCH_NAME "/dir/file.c" |
327 | cannot match FILENAME "/path//dir/file.c" - as user has requested | |
328 | absolute path. The sama applies for "c:\file.c" possibly | |
329 | incorrectly hypothetically matching "d:\dir\c:\file.c". | |
330 | ||
d84fca2c JK |
331 | The HAS_DRIVE_SPEC purpose is to make FILENAME "c:file.c" |
332 | compatible with SEARCH_NAME "file.c". In such case a compiler had | |
333 | to put the "c:file.c" name into debug info. Such compatibility | |
334 | works only on GDB built for DOS host. */ | |
4aac40c8 | 335 | return (len == search_len |
af529f8f JK |
336 | || (!IS_ABSOLUTE_PATH (search_name) |
337 | && IS_DIR_SEPARATOR (filename[len - search_len - 1])) | |
4aac40c8 TT |
338 | || (HAS_DRIVE_SPEC (filename) |
339 | && STRIP_DRIVE_SPEC (filename) == &filename[len - search_len])); | |
340 | } | |
341 | ||
f8eba3c6 TT |
342 | /* Check for a symtab of a specific name by searching some symtabs. |
343 | This is a helper function for callbacks of iterate_over_symtabs. | |
c906108c | 344 | |
b2d23133 DE |
345 | If NAME is not absolute, then REAL_PATH is NULL |
346 | If NAME is absolute, then REAL_PATH is the gdb_realpath form of NAME. | |
347 | ||
f5b95b50 | 348 | The return value, NAME, REAL_PATH, CALLBACK, and DATA |
f8eba3c6 TT |
349 | are identical to the `map_symtabs_matching_filename' method of |
350 | quick_symbol_functions. | |
351 | ||
43f3e411 DE |
352 | FIRST and AFTER_LAST indicate the range of compunit symtabs to search. |
353 | Each symtab within the specified compunit symtab is also searched. | |
354 | AFTER_LAST is one past the last compunit symtab to search; NULL means to | |
f8eba3c6 TT |
355 | search until the end of the list. */ |
356 | ||
357 | int | |
358 | iterate_over_some_symtabs (const char *name, | |
f8eba3c6 TT |
359 | const char *real_path, |
360 | int (*callback) (struct symtab *symtab, | |
361 | void *data), | |
362 | void *data, | |
43f3e411 DE |
363 | struct compunit_symtab *first, |
364 | struct compunit_symtab *after_last) | |
c906108c | 365 | { |
43f3e411 DE |
366 | struct compunit_symtab *cust; |
367 | struct symtab *s; | |
c011a4f4 | 368 | const char* base_name = lbasename (name); |
1f84b619 | 369 | |
43f3e411 | 370 | for (cust = first; cust != NULL && cust != after_last; cust = cust->next) |
f079a2e5 | 371 | { |
43f3e411 | 372 | ALL_COMPUNIT_FILETABS (cust, s) |
a94e8645 | 373 | { |
43f3e411 DE |
374 | if (compare_filenames_for_search (s->filename, name)) |
375 | { | |
376 | if (callback (s, data)) | |
377 | return 1; | |
378 | continue; | |
379 | } | |
a94e8645 | 380 | |
43f3e411 DE |
381 | /* Before we invoke realpath, which can get expensive when many |
382 | files are involved, do a quick comparison of the basenames. */ | |
383 | if (! basenames_may_differ | |
384 | && FILENAME_CMP (base_name, lbasename (s->filename)) != 0) | |
385 | continue; | |
a94e8645 | 386 | |
43f3e411 | 387 | if (compare_filenames_for_search (symtab_to_fullname (s), name)) |
a94e8645 DE |
388 | { |
389 | if (callback (s, data)) | |
390 | return 1; | |
391 | continue; | |
392 | } | |
43f3e411 DE |
393 | |
394 | /* If the user gave us an absolute path, try to find the file in | |
395 | this symtab and use its absolute path. */ | |
396 | if (real_path != NULL) | |
397 | { | |
398 | const char *fullname = symtab_to_fullname (s); | |
399 | ||
400 | gdb_assert (IS_ABSOLUTE_PATH (real_path)); | |
401 | gdb_assert (IS_ABSOLUTE_PATH (name)); | |
402 | if (FILENAME_CMP (real_path, fullname) == 0) | |
403 | { | |
404 | if (callback (s, data)) | |
405 | return 1; | |
406 | continue; | |
407 | } | |
408 | } | |
a94e8645 | 409 | } |
f8eba3c6 | 410 | } |
58d370e0 | 411 | |
f8eba3c6 TT |
412 | return 0; |
413 | } | |
414 | ||
415 | /* Check for a symtab of a specific name; first in symtabs, then in | |
416 | psymtabs. *If* there is no '/' in the name, a match after a '/' | |
417 | in the symtab filename will also work. | |
418 | ||
419 | Calls CALLBACK with each symtab that is found and with the supplied | |
420 | DATA. If CALLBACK returns true, the search stops. */ | |
421 | ||
422 | void | |
423 | iterate_over_symtabs (const char *name, | |
424 | int (*callback) (struct symtab *symtab, | |
425 | void *data), | |
426 | void *data) | |
427 | { | |
f8eba3c6 TT |
428 | struct objfile *objfile; |
429 | char *real_path = NULL; | |
f8eba3c6 TT |
430 | struct cleanup *cleanups = make_cleanup (null_cleanup, NULL); |
431 | ||
432 | /* Here we are interested in canonicalizing an absolute path, not | |
433 | absolutizing a relative path. */ | |
434 | if (IS_ABSOLUTE_PATH (name)) | |
435 | { | |
f8eba3c6 TT |
436 | real_path = gdb_realpath (name); |
437 | make_cleanup (xfree, real_path); | |
af529f8f | 438 | gdb_assert (IS_ABSOLUTE_PATH (real_path)); |
f8eba3c6 TT |
439 | } |
440 | ||
441 | ALL_OBJFILES (objfile) | |
442 | { | |
f5b95b50 | 443 | if (iterate_over_some_symtabs (name, real_path, callback, data, |
43f3e411 | 444 | objfile->compunit_symtabs, NULL)) |
f8eba3c6 TT |
445 | { |
446 | do_cleanups (cleanups); | |
447 | return; | |
448 | } | |
449 | } | |
450 | ||
c906108c SS |
451 | /* Same search rules as above apply here, but now we look thru the |
452 | psymtabs. */ | |
453 | ||
ccefe4c4 TT |
454 | ALL_OBJFILES (objfile) |
455 | { | |
456 | if (objfile->sf | |
f8eba3c6 TT |
457 | && objfile->sf->qf->map_symtabs_matching_filename (objfile, |
458 | name, | |
f8eba3c6 TT |
459 | real_path, |
460 | callback, | |
461 | data)) | |
ccefe4c4 | 462 | { |
f8eba3c6 TT |
463 | do_cleanups (cleanups); |
464 | return; | |
ccefe4c4 TT |
465 | } |
466 | } | |
c906108c | 467 | |
f8eba3c6 TT |
468 | do_cleanups (cleanups); |
469 | } | |
470 | ||
471 | /* The callback function used by lookup_symtab. */ | |
472 | ||
473 | static int | |
474 | lookup_symtab_callback (struct symtab *symtab, void *data) | |
475 | { | |
476 | struct symtab **result_ptr = data; | |
c906108c | 477 | |
f8eba3c6 TT |
478 | *result_ptr = symtab; |
479 | return 1; | |
c906108c | 480 | } |
f8eba3c6 TT |
481 | |
482 | /* A wrapper for iterate_over_symtabs that returns the first matching | |
483 | symtab, or NULL. */ | |
484 | ||
485 | struct symtab * | |
486 | lookup_symtab (const char *name) | |
487 | { | |
488 | struct symtab *result = NULL; | |
489 | ||
490 | iterate_over_symtabs (name, lookup_symtab_callback, &result); | |
491 | return result; | |
492 | } | |
493 | ||
c906108c SS |
494 | \f |
495 | /* Mangle a GDB method stub type. This actually reassembles the pieces of the | |
496 | full method name, which consist of the class name (from T), the unadorned | |
497 | method name from METHOD_ID, and the signature for the specific overload, | |
c378eb4e | 498 | specified by SIGNATURE_ID. Note that this function is g++ specific. */ |
c906108c SS |
499 | |
500 | char * | |
fba45db2 | 501 | gdb_mangle_name (struct type *type, int method_id, int signature_id) |
c906108c SS |
502 | { |
503 | int mangled_name_len; | |
504 | char *mangled_name; | |
505 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
506 | struct fn_field *method = &f[signature_id]; | |
0d5cff50 | 507 | const char *field_name = TYPE_FN_FIELDLIST_NAME (type, method_id); |
1d06ead6 | 508 | const char *physname = TYPE_FN_FIELD_PHYSNAME (f, signature_id); |
0d5cff50 | 509 | const char *newname = type_name_no_tag (type); |
c906108c SS |
510 | |
511 | /* Does the form of physname indicate that it is the full mangled name | |
512 | of a constructor (not just the args)? */ | |
513 | int is_full_physname_constructor; | |
514 | ||
515 | int is_constructor; | |
015a42b4 | 516 | int is_destructor = is_destructor_name (physname); |
c906108c SS |
517 | /* Need a new type prefix. */ |
518 | char *const_prefix = method->is_const ? "C" : ""; | |
519 | char *volatile_prefix = method->is_volatile ? "V" : ""; | |
520 | char buf[20]; | |
521 | int len = (newname == NULL ? 0 : strlen (newname)); | |
522 | ||
43630227 PS |
523 | /* Nothing to do if physname already contains a fully mangled v3 abi name |
524 | or an operator name. */ | |
525 | if ((physname[0] == '_' && physname[1] == 'Z') | |
526 | || is_operator_name (field_name)) | |
235d1e03 EZ |
527 | return xstrdup (physname); |
528 | ||
015a42b4 | 529 | is_full_physname_constructor = is_constructor_name (physname); |
c906108c | 530 | |
3e43a32a MS |
531 | is_constructor = is_full_physname_constructor |
532 | || (newname && strcmp (field_name, newname) == 0); | |
c906108c SS |
533 | |
534 | if (!is_destructor) | |
c5aa993b | 535 | is_destructor = (strncmp (physname, "__dt", 4) == 0); |
c906108c SS |
536 | |
537 | if (is_destructor || is_full_physname_constructor) | |
538 | { | |
c5aa993b JM |
539 | mangled_name = (char *) xmalloc (strlen (physname) + 1); |
540 | strcpy (mangled_name, physname); | |
c906108c SS |
541 | return mangled_name; |
542 | } | |
543 | ||
544 | if (len == 0) | |
545 | { | |
8c042590 | 546 | xsnprintf (buf, sizeof (buf), "__%s%s", const_prefix, volatile_prefix); |
c906108c SS |
547 | } |
548 | else if (physname[0] == 't' || physname[0] == 'Q') | |
549 | { | |
550 | /* The physname for template and qualified methods already includes | |
c5aa993b | 551 | the class name. */ |
8c042590 | 552 | xsnprintf (buf, sizeof (buf), "__%s%s", const_prefix, volatile_prefix); |
c906108c SS |
553 | newname = NULL; |
554 | len = 0; | |
555 | } | |
556 | else | |
557 | { | |
8c042590 PM |
558 | xsnprintf (buf, sizeof (buf), "__%s%s%d", const_prefix, |
559 | volatile_prefix, len); | |
c906108c SS |
560 | } |
561 | mangled_name_len = ((is_constructor ? 0 : strlen (field_name)) | |
235d1e03 | 562 | + strlen (buf) + len + strlen (physname) + 1); |
c906108c | 563 | |
433759f7 MS |
564 | mangled_name = (char *) xmalloc (mangled_name_len); |
565 | if (is_constructor) | |
566 | mangled_name[0] = '\0'; | |
567 | else | |
568 | strcpy (mangled_name, field_name); | |
569 | ||
c906108c SS |
570 | strcat (mangled_name, buf); |
571 | /* If the class doesn't have a name, i.e. newname NULL, then we just | |
572 | mangle it using 0 for the length of the class. Thus it gets mangled | |
c378eb4e | 573 | as something starting with `::' rather than `classname::'. */ |
c906108c SS |
574 | if (newname != NULL) |
575 | strcat (mangled_name, newname); | |
576 | ||
577 | strcat (mangled_name, physname); | |
578 | return (mangled_name); | |
579 | } | |
12af6855 | 580 | |
b250c185 | 581 | /* Set the demangled name of GSYMBOL to NAME. NAME must be already |
7c5fdd25 | 582 | correctly allocated. */ |
eca864fe | 583 | |
b250c185 SW |
584 | void |
585 | symbol_set_demangled_name (struct general_symbol_info *gsymbol, | |
cfc594ee | 586 | const char *name, |
ccde22c0 | 587 | struct obstack *obstack) |
b250c185 | 588 | { |
7c5fdd25 | 589 | if (gsymbol->language == language_ada) |
f85f34ed TT |
590 | { |
591 | if (name == NULL) | |
592 | { | |
593 | gsymbol->ada_mangled = 0; | |
594 | gsymbol->language_specific.obstack = obstack; | |
595 | } | |
596 | else | |
597 | { | |
598 | gsymbol->ada_mangled = 1; | |
599 | gsymbol->language_specific.mangled_lang.demangled_name = name; | |
600 | } | |
601 | } | |
29df156d SW |
602 | else |
603 | gsymbol->language_specific.mangled_lang.demangled_name = name; | |
b250c185 SW |
604 | } |
605 | ||
606 | /* Return the demangled name of GSYMBOL. */ | |
eca864fe | 607 | |
0d5cff50 | 608 | const char * |
b250c185 SW |
609 | symbol_get_demangled_name (const struct general_symbol_info *gsymbol) |
610 | { | |
7c5fdd25 | 611 | if (gsymbol->language == language_ada) |
f85f34ed TT |
612 | { |
613 | if (!gsymbol->ada_mangled) | |
614 | return NULL; | |
615 | /* Fall through. */ | |
616 | } | |
617 | ||
618 | return gsymbol->language_specific.mangled_lang.demangled_name; | |
b250c185 SW |
619 | } |
620 | ||
12af6855 | 621 | \f |
89aad1f9 | 622 | /* Initialize the language dependent portion of a symbol |
c378eb4e | 623 | depending upon the language for the symbol. */ |
eca864fe | 624 | |
89aad1f9 | 625 | void |
33e5013e | 626 | symbol_set_language (struct general_symbol_info *gsymbol, |
f85f34ed TT |
627 | enum language language, |
628 | struct obstack *obstack) | |
89aad1f9 EZ |
629 | { |
630 | gsymbol->language = language; | |
7c5fdd25 DE |
631 | if (gsymbol->language == language_cplus |
632 | || gsymbol->language == language_d | |
a766d390 | 633 | || gsymbol->language == language_go |
5784d15e | 634 | || gsymbol->language == language_java |
f55ee35c JK |
635 | || gsymbol->language == language_objc |
636 | || gsymbol->language == language_fortran) | |
89aad1f9 | 637 | { |
f85f34ed TT |
638 | symbol_set_demangled_name (gsymbol, NULL, obstack); |
639 | } | |
640 | else if (gsymbol->language == language_ada) | |
641 | { | |
642 | gdb_assert (gsymbol->ada_mangled == 0); | |
643 | gsymbol->language_specific.obstack = obstack; | |
89aad1f9 | 644 | } |
89aad1f9 EZ |
645 | else |
646 | { | |
647 | memset (&gsymbol->language_specific, 0, | |
648 | sizeof (gsymbol->language_specific)); | |
649 | } | |
650 | } | |
651 | ||
2de7ced7 DJ |
652 | /* Functions to initialize a symbol's mangled name. */ |
653 | ||
04a679b8 TT |
654 | /* Objects of this type are stored in the demangled name hash table. */ |
655 | struct demangled_name_entry | |
656 | { | |
9d2ceabe | 657 | const char *mangled; |
04a679b8 TT |
658 | char demangled[1]; |
659 | }; | |
660 | ||
661 | /* Hash function for the demangled name hash. */ | |
eca864fe | 662 | |
04a679b8 TT |
663 | static hashval_t |
664 | hash_demangled_name_entry (const void *data) | |
665 | { | |
666 | const struct demangled_name_entry *e = data; | |
433759f7 | 667 | |
04a679b8 TT |
668 | return htab_hash_string (e->mangled); |
669 | } | |
670 | ||
671 | /* Equality function for the demangled name hash. */ | |
eca864fe | 672 | |
04a679b8 TT |
673 | static int |
674 | eq_demangled_name_entry (const void *a, const void *b) | |
675 | { | |
676 | const struct demangled_name_entry *da = a; | |
677 | const struct demangled_name_entry *db = b; | |
433759f7 | 678 | |
04a679b8 TT |
679 | return strcmp (da->mangled, db->mangled) == 0; |
680 | } | |
681 | ||
2de7ced7 DJ |
682 | /* Create the hash table used for demangled names. Each hash entry is |
683 | a pair of strings; one for the mangled name and one for the demangled | |
684 | name. The entry is hashed via just the mangled name. */ | |
685 | ||
686 | static void | |
687 | create_demangled_names_hash (struct objfile *objfile) | |
688 | { | |
689 | /* Choose 256 as the starting size of the hash table, somewhat arbitrarily. | |
9af17804 | 690 | The hash table code will round this up to the next prime number. |
2de7ced7 DJ |
691 | Choosing a much larger table size wastes memory, and saves only about |
692 | 1% in symbol reading. */ | |
693 | ||
84a1243b | 694 | objfile->per_bfd->demangled_names_hash = htab_create_alloc |
04a679b8 | 695 | (256, hash_demangled_name_entry, eq_demangled_name_entry, |
aa2ee5f6 | 696 | NULL, xcalloc, xfree); |
2de7ced7 | 697 | } |
12af6855 | 698 | |
2de7ced7 | 699 | /* Try to determine the demangled name for a symbol, based on the |
12af6855 JB |
700 | language of that symbol. If the language is set to language_auto, |
701 | it will attempt to find any demangling algorithm that works and | |
2de7ced7 DJ |
702 | then set the language appropriately. The returned name is allocated |
703 | by the demangler and should be xfree'd. */ | |
12af6855 | 704 | |
2de7ced7 DJ |
705 | static char * |
706 | symbol_find_demangled_name (struct general_symbol_info *gsymbol, | |
707 | const char *mangled) | |
12af6855 | 708 | { |
12af6855 JB |
709 | char *demangled = NULL; |
710 | ||
711 | if (gsymbol->language == language_unknown) | |
712 | gsymbol->language = language_auto; | |
1bae87b9 AF |
713 | |
714 | if (gsymbol->language == language_objc | |
715 | || gsymbol->language == language_auto) | |
716 | { | |
717 | demangled = | |
718 | objc_demangle (mangled, 0); | |
719 | if (demangled != NULL) | |
720 | { | |
721 | gsymbol->language = language_objc; | |
722 | return demangled; | |
723 | } | |
724 | } | |
12af6855 JB |
725 | if (gsymbol->language == language_cplus |
726 | || gsymbol->language == language_auto) | |
727 | { | |
728 | demangled = | |
8de20a37 | 729 | gdb_demangle (mangled, DMGL_PARAMS | DMGL_ANSI); |
12af6855 | 730 | if (demangled != NULL) |
2de7ced7 DJ |
731 | { |
732 | gsymbol->language = language_cplus; | |
733 | return demangled; | |
734 | } | |
12af6855 JB |
735 | } |
736 | if (gsymbol->language == language_java) | |
737 | { | |
738 | demangled = | |
8de20a37 TT |
739 | gdb_demangle (mangled, |
740 | DMGL_PARAMS | DMGL_ANSI | DMGL_JAVA); | |
12af6855 | 741 | if (demangled != NULL) |
2de7ced7 DJ |
742 | { |
743 | gsymbol->language = language_java; | |
744 | return demangled; | |
745 | } | |
746 | } | |
6aecb9c2 JB |
747 | if (gsymbol->language == language_d |
748 | || gsymbol->language == language_auto) | |
749 | { | |
750 | demangled = d_demangle(mangled, 0); | |
751 | if (demangled != NULL) | |
752 | { | |
753 | gsymbol->language = language_d; | |
754 | return demangled; | |
755 | } | |
756 | } | |
a766d390 DE |
757 | /* FIXME(dje): Continually adding languages here is clumsy. |
758 | Better to just call la_demangle if !auto, and if auto then call | |
759 | a utility routine that tries successive languages in turn and reports | |
760 | which one it finds. I realize the la_demangle options may be different | |
761 | for different languages but there's already a FIXME for that. */ | |
762 | if (gsymbol->language == language_go | |
763 | || gsymbol->language == language_auto) | |
764 | { | |
765 | demangled = go_demangle (mangled, 0); | |
766 | if (demangled != NULL) | |
767 | { | |
768 | gsymbol->language = language_go; | |
769 | return demangled; | |
770 | } | |
771 | } | |
772 | ||
f55ee35c JK |
773 | /* We could support `gsymbol->language == language_fortran' here to provide |
774 | module namespaces also for inferiors with only minimal symbol table (ELF | |
775 | symbols). Just the mangling standard is not standardized across compilers | |
776 | and there is no DW_AT_producer available for inferiors with only the ELF | |
777 | symbols to check the mangling kind. */ | |
036e93df JB |
778 | |
779 | /* Check for Ada symbols last. See comment below explaining why. */ | |
780 | ||
781 | if (gsymbol->language == language_auto) | |
782 | { | |
783 | const char *demangled = ada_decode (mangled); | |
784 | ||
785 | if (demangled != mangled && demangled != NULL && demangled[0] != '<') | |
786 | { | |
787 | /* Set the gsymbol language to Ada, but still return NULL. | |
788 | Two reasons for that: | |
789 | ||
790 | 1. For Ada, we prefer computing the symbol's decoded name | |
791 | on the fly rather than pre-compute it, in order to save | |
792 | memory (Ada projects are typically very large). | |
793 | ||
794 | 2. There are some areas in the definition of the GNAT | |
795 | encoding where, with a bit of bad luck, we might be able | |
796 | to decode a non-Ada symbol, generating an incorrect | |
797 | demangled name (Eg: names ending with "TB" for instance | |
798 | are identified as task bodies and so stripped from | |
799 | the decoded name returned). | |
800 | ||
801 | Returning NULL, here, helps us get a little bit of | |
802 | the best of both worlds. Because we're last, we should | |
803 | not affect any of the other languages that were able to | |
804 | demangle the symbol before us; we get to correctly tag | |
805 | Ada symbols as such; and even if we incorrectly tagged | |
806 | a non-Ada symbol, which should be rare, any routing | |
807 | through the Ada language should be transparent (Ada | |
808 | tries to behave much like C/C++ with non-Ada symbols). */ | |
809 | gsymbol->language = language_ada; | |
810 | return NULL; | |
811 | } | |
812 | } | |
813 | ||
2de7ced7 DJ |
814 | return NULL; |
815 | } | |
816 | ||
980cae7a | 817 | /* Set both the mangled and demangled (if any) names for GSYMBOL based |
04a679b8 TT |
818 | on LINKAGE_NAME and LEN. Ordinarily, NAME is copied onto the |
819 | objfile's obstack; but if COPY_NAME is 0 and if NAME is | |
820 | NUL-terminated, then this function assumes that NAME is already | |
821 | correctly saved (either permanently or with a lifetime tied to the | |
822 | objfile), and it will not be copied. | |
823 | ||
824 | The hash table corresponding to OBJFILE is used, and the memory | |
84a1243b | 825 | comes from the per-BFD storage_obstack. LINKAGE_NAME is copied, |
04a679b8 | 826 | so the pointer can be discarded after calling this function. */ |
2de7ced7 | 827 | |
d2a52b27 DC |
828 | /* We have to be careful when dealing with Java names: when we run |
829 | into a Java minimal symbol, we don't know it's a Java symbol, so it | |
830 | gets demangled as a C++ name. This is unfortunate, but there's not | |
831 | much we can do about it: but when demangling partial symbols and | |
832 | regular symbols, we'd better not reuse the wrong demangled name. | |
833 | (See PR gdb/1039.) We solve this by putting a distinctive prefix | |
834 | on Java names when storing them in the hash table. */ | |
835 | ||
836 | /* FIXME: carlton/2003-03-13: This is an unfortunate situation. I | |
837 | don't mind the Java prefix so much: different languages have | |
838 | different demangling requirements, so it's only natural that we | |
839 | need to keep language data around in our demangling cache. But | |
840 | it's not good that the minimal symbol has the wrong demangled name. | |
841 | Unfortunately, I can't think of any easy solution to that | |
842 | problem. */ | |
843 | ||
844 | #define JAVA_PREFIX "##JAVA$$" | |
845 | #define JAVA_PREFIX_LEN 8 | |
846 | ||
2de7ced7 DJ |
847 | void |
848 | symbol_set_names (struct general_symbol_info *gsymbol, | |
04a679b8 TT |
849 | const char *linkage_name, int len, int copy_name, |
850 | struct objfile *objfile) | |
2de7ced7 | 851 | { |
04a679b8 | 852 | struct demangled_name_entry **slot; |
980cae7a DC |
853 | /* A 0-terminated copy of the linkage name. */ |
854 | const char *linkage_name_copy; | |
d2a52b27 DC |
855 | /* A copy of the linkage name that might have a special Java prefix |
856 | added to it, for use when looking names up in the hash table. */ | |
857 | const char *lookup_name; | |
858 | /* The length of lookup_name. */ | |
859 | int lookup_len; | |
04a679b8 | 860 | struct demangled_name_entry entry; |
84a1243b | 861 | struct objfile_per_bfd_storage *per_bfd = objfile->per_bfd; |
2de7ced7 | 862 | |
b06ead72 JB |
863 | if (gsymbol->language == language_ada) |
864 | { | |
865 | /* In Ada, we do the symbol lookups using the mangled name, so | |
866 | we can save some space by not storing the demangled name. | |
867 | ||
868 | As a side note, we have also observed some overlap between | |
869 | the C++ mangling and Ada mangling, similarly to what has | |
870 | been observed with Java. Because we don't store the demangled | |
871 | name with the symbol, we don't need to use the same trick | |
872 | as Java. */ | |
04a679b8 | 873 | if (!copy_name) |
0d5cff50 | 874 | gsymbol->name = linkage_name; |
04a679b8 TT |
875 | else |
876 | { | |
84a1243b | 877 | char *name = obstack_alloc (&per_bfd->storage_obstack, len + 1); |
0d5cff50 DE |
878 | |
879 | memcpy (name, linkage_name, len); | |
880 | name[len] = '\0'; | |
881 | gsymbol->name = name; | |
04a679b8 | 882 | } |
84a1243b | 883 | symbol_set_demangled_name (gsymbol, NULL, &per_bfd->storage_obstack); |
b06ead72 JB |
884 | |
885 | return; | |
886 | } | |
887 | ||
84a1243b | 888 | if (per_bfd->demangled_names_hash == NULL) |
04a679b8 TT |
889 | create_demangled_names_hash (objfile); |
890 | ||
980cae7a DC |
891 | /* The stabs reader generally provides names that are not |
892 | NUL-terminated; most of the other readers don't do this, so we | |
d2a52b27 DC |
893 | can just use the given copy, unless we're in the Java case. */ |
894 | if (gsymbol->language == language_java) | |
895 | { | |
896 | char *alloc_name; | |
d2a52b27 | 897 | |
433759f7 | 898 | lookup_len = len + JAVA_PREFIX_LEN; |
d2a52b27 DC |
899 | alloc_name = alloca (lookup_len + 1); |
900 | memcpy (alloc_name, JAVA_PREFIX, JAVA_PREFIX_LEN); | |
901 | memcpy (alloc_name + JAVA_PREFIX_LEN, linkage_name, len); | |
902 | alloc_name[lookup_len] = '\0'; | |
903 | ||
904 | lookup_name = alloc_name; | |
905 | linkage_name_copy = alloc_name + JAVA_PREFIX_LEN; | |
906 | } | |
907 | else if (linkage_name[len] != '\0') | |
2de7ced7 | 908 | { |
980cae7a DC |
909 | char *alloc_name; |
910 | ||
433759f7 | 911 | lookup_len = len; |
d2a52b27 | 912 | alloc_name = alloca (lookup_len + 1); |
980cae7a | 913 | memcpy (alloc_name, linkage_name, len); |
d2a52b27 | 914 | alloc_name[lookup_len] = '\0'; |
980cae7a | 915 | |
d2a52b27 | 916 | lookup_name = alloc_name; |
980cae7a | 917 | linkage_name_copy = alloc_name; |
2de7ced7 DJ |
918 | } |
919 | else | |
980cae7a | 920 | { |
d2a52b27 DC |
921 | lookup_len = len; |
922 | lookup_name = linkage_name; | |
980cae7a DC |
923 | linkage_name_copy = linkage_name; |
924 | } | |
2de7ced7 | 925 | |
9d2ceabe | 926 | entry.mangled = lookup_name; |
04a679b8 | 927 | slot = ((struct demangled_name_entry **) |
84a1243b | 928 | htab_find_slot (per_bfd->demangled_names_hash, |
04a679b8 | 929 | &entry, INSERT)); |
2de7ced7 DJ |
930 | |
931 | /* If this name is not in the hash table, add it. */ | |
a766d390 DE |
932 | if (*slot == NULL |
933 | /* A C version of the symbol may have already snuck into the table. | |
934 | This happens to, e.g., main.init (__go_init_main). Cope. */ | |
935 | || (gsymbol->language == language_go | |
936 | && (*slot)->demangled[0] == '\0')) | |
2de7ced7 | 937 | { |
980cae7a DC |
938 | char *demangled_name = symbol_find_demangled_name (gsymbol, |
939 | linkage_name_copy); | |
2de7ced7 DJ |
940 | int demangled_len = demangled_name ? strlen (demangled_name) : 0; |
941 | ||
04a679b8 TT |
942 | /* Suppose we have demangled_name==NULL, copy_name==0, and |
943 | lookup_name==linkage_name. In this case, we already have the | |
944 | mangled name saved, and we don't have a demangled name. So, | |
945 | you might think we could save a little space by not recording | |
946 | this in the hash table at all. | |
947 | ||
948 | It turns out that it is actually important to still save such | |
949 | an entry in the hash table, because storing this name gives | |
705b5767 | 950 | us better bcache hit rates for partial symbols. */ |
04a679b8 TT |
951 | if (!copy_name && lookup_name == linkage_name) |
952 | { | |
84a1243b | 953 | *slot = obstack_alloc (&per_bfd->storage_obstack, |
04a679b8 TT |
954 | offsetof (struct demangled_name_entry, |
955 | demangled) | |
956 | + demangled_len + 1); | |
9d2ceabe | 957 | (*slot)->mangled = lookup_name; |
04a679b8 TT |
958 | } |
959 | else | |
960 | { | |
9d2ceabe TT |
961 | char *mangled_ptr; |
962 | ||
04a679b8 TT |
963 | /* If we must copy the mangled name, put it directly after |
964 | the demangled name so we can have a single | |
965 | allocation. */ | |
84a1243b | 966 | *slot = obstack_alloc (&per_bfd->storage_obstack, |
04a679b8 TT |
967 | offsetof (struct demangled_name_entry, |
968 | demangled) | |
969 | + lookup_len + demangled_len + 2); | |
9d2ceabe TT |
970 | mangled_ptr = &((*slot)->demangled[demangled_len + 1]); |
971 | strcpy (mangled_ptr, lookup_name); | |
972 | (*slot)->mangled = mangled_ptr; | |
04a679b8 TT |
973 | } |
974 | ||
980cae7a | 975 | if (demangled_name != NULL) |
2de7ced7 | 976 | { |
04a679b8 | 977 | strcpy ((*slot)->demangled, demangled_name); |
2de7ced7 DJ |
978 | xfree (demangled_name); |
979 | } | |
980 | else | |
04a679b8 | 981 | (*slot)->demangled[0] = '\0'; |
2de7ced7 DJ |
982 | } |
983 | ||
72dcaf82 | 984 | gsymbol->name = (*slot)->mangled + lookup_len - len; |
04a679b8 | 985 | if ((*slot)->demangled[0] != '\0') |
ccde22c0 | 986 | symbol_set_demangled_name (gsymbol, (*slot)->demangled, |
84a1243b | 987 | &per_bfd->storage_obstack); |
2de7ced7 | 988 | else |
84a1243b | 989 | symbol_set_demangled_name (gsymbol, NULL, &per_bfd->storage_obstack); |
2de7ced7 DJ |
990 | } |
991 | ||
22abf04a DC |
992 | /* Return the source code name of a symbol. In languages where |
993 | demangling is necessary, this is the demangled name. */ | |
994 | ||
0d5cff50 | 995 | const char * |
22abf04a DC |
996 | symbol_natural_name (const struct general_symbol_info *gsymbol) |
997 | { | |
9af17804 | 998 | switch (gsymbol->language) |
22abf04a | 999 | { |
1f8173e6 | 1000 | case language_cplus: |
6aecb9c2 | 1001 | case language_d: |
a766d390 | 1002 | case language_go: |
1f8173e6 PH |
1003 | case language_java: |
1004 | case language_objc: | |
f55ee35c | 1005 | case language_fortran: |
b250c185 SW |
1006 | if (symbol_get_demangled_name (gsymbol) != NULL) |
1007 | return symbol_get_demangled_name (gsymbol); | |
1f8173e6 PH |
1008 | break; |
1009 | case language_ada: | |
f85f34ed | 1010 | return ada_decode_symbol (gsymbol); |
1f8173e6 PH |
1011 | default: |
1012 | break; | |
22abf04a | 1013 | } |
1f8173e6 | 1014 | return gsymbol->name; |
22abf04a DC |
1015 | } |
1016 | ||
9cc0d196 | 1017 | /* Return the demangled name for a symbol based on the language for |
c378eb4e | 1018 | that symbol. If no demangled name exists, return NULL. */ |
eca864fe | 1019 | |
0d5cff50 | 1020 | const char * |
df8a16a1 | 1021 | symbol_demangled_name (const struct general_symbol_info *gsymbol) |
9cc0d196 | 1022 | { |
c6e5ee5e SDJ |
1023 | const char *dem_name = NULL; |
1024 | ||
9af17804 | 1025 | switch (gsymbol->language) |
1f8173e6 PH |
1026 | { |
1027 | case language_cplus: | |
6aecb9c2 | 1028 | case language_d: |
a766d390 | 1029 | case language_go: |
1f8173e6 PH |
1030 | case language_java: |
1031 | case language_objc: | |
f55ee35c | 1032 | case language_fortran: |
c6e5ee5e | 1033 | dem_name = symbol_get_demangled_name (gsymbol); |
1f8173e6 PH |
1034 | break; |
1035 | case language_ada: | |
f85f34ed | 1036 | dem_name = ada_decode_symbol (gsymbol); |
1f8173e6 PH |
1037 | break; |
1038 | default: | |
1039 | break; | |
1040 | } | |
c6e5ee5e | 1041 | return dem_name; |
9cc0d196 | 1042 | } |
fe39c653 | 1043 | |
4725b721 PH |
1044 | /* Return the search name of a symbol---generally the demangled or |
1045 | linkage name of the symbol, depending on how it will be searched for. | |
9af17804 | 1046 | If there is no distinct demangled name, then returns the same value |
c378eb4e | 1047 | (same pointer) as SYMBOL_LINKAGE_NAME. */ |
eca864fe | 1048 | |
0d5cff50 | 1049 | const char * |
fc062ac6 JB |
1050 | symbol_search_name (const struct general_symbol_info *gsymbol) |
1051 | { | |
1f8173e6 PH |
1052 | if (gsymbol->language == language_ada) |
1053 | return gsymbol->name; | |
1054 | else | |
1055 | return symbol_natural_name (gsymbol); | |
4725b721 PH |
1056 | } |
1057 | ||
fe39c653 | 1058 | /* Initialize the structure fields to zero values. */ |
eca864fe | 1059 | |
fe39c653 EZ |
1060 | void |
1061 | init_sal (struct symtab_and_line *sal) | |
1062 | { | |
729662a5 | 1063 | memset (sal, 0, sizeof (*sal)); |
fe39c653 | 1064 | } |
c906108c SS |
1065 | \f |
1066 | ||
94277a38 DJ |
1067 | /* Return 1 if the two sections are the same, or if they could |
1068 | plausibly be copies of each other, one in an original object | |
1069 | file and another in a separated debug file. */ | |
1070 | ||
1071 | int | |
714835d5 UW |
1072 | matching_obj_sections (struct obj_section *obj_first, |
1073 | struct obj_section *obj_second) | |
94277a38 | 1074 | { |
714835d5 UW |
1075 | asection *first = obj_first? obj_first->the_bfd_section : NULL; |
1076 | asection *second = obj_second? obj_second->the_bfd_section : NULL; | |
94277a38 DJ |
1077 | struct objfile *obj; |
1078 | ||
1079 | /* If they're the same section, then they match. */ | |
1080 | if (first == second) | |
1081 | return 1; | |
1082 | ||
1083 | /* If either is NULL, give up. */ | |
1084 | if (first == NULL || second == NULL) | |
1085 | return 0; | |
1086 | ||
1087 | /* This doesn't apply to absolute symbols. */ | |
1088 | if (first->owner == NULL || second->owner == NULL) | |
1089 | return 0; | |
1090 | ||
1091 | /* If they're in the same object file, they must be different sections. */ | |
1092 | if (first->owner == second->owner) | |
1093 | return 0; | |
1094 | ||
1095 | /* Check whether the two sections are potentially corresponding. They must | |
1096 | have the same size, address, and name. We can't compare section indexes, | |
1097 | which would be more reliable, because some sections may have been | |
1098 | stripped. */ | |
1099 | if (bfd_get_section_size (first) != bfd_get_section_size (second)) | |
1100 | return 0; | |
1101 | ||
818f79f6 | 1102 | /* In-memory addresses may start at a different offset, relativize them. */ |
94277a38 | 1103 | if (bfd_get_section_vma (first->owner, first) |
818f79f6 DJ |
1104 | - bfd_get_start_address (first->owner) |
1105 | != bfd_get_section_vma (second->owner, second) | |
1106 | - bfd_get_start_address (second->owner)) | |
94277a38 DJ |
1107 | return 0; |
1108 | ||
1109 | if (bfd_get_section_name (first->owner, first) == NULL | |
1110 | || bfd_get_section_name (second->owner, second) == NULL | |
1111 | || strcmp (bfd_get_section_name (first->owner, first), | |
1112 | bfd_get_section_name (second->owner, second)) != 0) | |
1113 | return 0; | |
1114 | ||
1115 | /* Otherwise check that they are in corresponding objfiles. */ | |
1116 | ||
1117 | ALL_OBJFILES (obj) | |
1118 | if (obj->obfd == first->owner) | |
1119 | break; | |
1120 | gdb_assert (obj != NULL); | |
1121 | ||
1122 | if (obj->separate_debug_objfile != NULL | |
1123 | && obj->separate_debug_objfile->obfd == second->owner) | |
1124 | return 1; | |
1125 | if (obj->separate_debug_objfile_backlink != NULL | |
1126 | && obj->separate_debug_objfile_backlink->obfd == second->owner) | |
1127 | return 1; | |
1128 | ||
1129 | return 0; | |
1130 | } | |
c5aa993b | 1131 | |
2097ae25 DE |
1132 | /* See symtab.h. */ |
1133 | ||
1134 | void | |
1135 | expand_symtab_containing_pc (CORE_ADDR pc, struct obj_section *section) | |
c906108c | 1136 | { |
52f0bd74 | 1137 | struct objfile *objfile; |
77e371c0 | 1138 | struct bound_minimal_symbol msymbol; |
8a48e967 DJ |
1139 | |
1140 | /* If we know that this is not a text address, return failure. This is | |
1141 | necessary because we loop based on texthigh and textlow, which do | |
1142 | not include the data ranges. */ | |
77e371c0 TT |
1143 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); |
1144 | if (msymbol.minsym | |
1145 | && (MSYMBOL_TYPE (msymbol.minsym) == mst_data | |
1146 | || MSYMBOL_TYPE (msymbol.minsym) == mst_bss | |
1147 | || MSYMBOL_TYPE (msymbol.minsym) == mst_abs | |
1148 | || MSYMBOL_TYPE (msymbol.minsym) == mst_file_data | |
1149 | || MSYMBOL_TYPE (msymbol.minsym) == mst_file_bss)) | |
2097ae25 | 1150 | return; |
c906108c | 1151 | |
ff013f42 | 1152 | ALL_OBJFILES (objfile) |
ccefe4c4 | 1153 | { |
43f3e411 | 1154 | struct compunit_symtab *cust = NULL; |
433759f7 | 1155 | |
ccefe4c4 | 1156 | if (objfile->sf) |
43f3e411 DE |
1157 | cust = objfile->sf->qf->find_pc_sect_compunit_symtab (objfile, msymbol, |
1158 | pc, section, 0); | |
1159 | if (cust) | |
2097ae25 | 1160 | return; |
ccefe4c4 | 1161 | } |
c906108c | 1162 | } |
c906108c | 1163 | \f |
f57d2163 DE |
1164 | /* Hash function for the symbol cache. */ |
1165 | ||
1166 | static unsigned int | |
1167 | hash_symbol_entry (const struct objfile *objfile_context, | |
1168 | const char *name, domain_enum domain) | |
1169 | { | |
1170 | unsigned int hash = (uintptr_t) objfile_context; | |
1171 | ||
1172 | if (name != NULL) | |
1173 | hash += htab_hash_string (name); | |
1174 | ||
1175 | hash += domain; | |
1176 | ||
1177 | return hash; | |
1178 | } | |
1179 | ||
1180 | /* Equality function for the symbol cache. */ | |
1181 | ||
1182 | static int | |
1183 | eq_symbol_entry (const struct symbol_cache_slot *slot, | |
1184 | const struct objfile *objfile_context, | |
1185 | const char *name, domain_enum domain) | |
1186 | { | |
1187 | const char *slot_name; | |
1188 | domain_enum slot_domain; | |
1189 | ||
1190 | if (slot->state == SYMBOL_SLOT_UNUSED) | |
1191 | return 0; | |
1192 | ||
1193 | if (slot->objfile_context != objfile_context) | |
1194 | return 0; | |
1195 | ||
1196 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
1197 | { | |
1198 | slot_name = slot->value.not_found.name; | |
1199 | slot_domain = slot->value.not_found.domain; | |
1200 | } | |
1201 | else | |
1202 | { | |
1203 | slot_name = SYMBOL_SEARCH_NAME (slot->value.found); | |
1204 | slot_domain = SYMBOL_DOMAIN (slot->value.found); | |
1205 | } | |
1206 | ||
1207 | /* NULL names match. */ | |
1208 | if (slot_name == NULL && name == NULL) | |
1209 | { | |
1210 | /* But there's no point in calling symbol_matches_domain in the | |
1211 | SYMBOL_SLOT_FOUND case. */ | |
1212 | if (slot_domain != domain) | |
1213 | return 0; | |
1214 | } | |
1215 | else if (slot_name != NULL && name != NULL) | |
1216 | { | |
1217 | /* It's important that we use the same comparison that was done the | |
1218 | first time through. If the slot records a found symbol, then this | |
1219 | means using strcmp_iw on SYMBOL_SEARCH_NAME. See dictionary.c. | |
1220 | It also means using symbol_matches_domain for found symbols. | |
1221 | See block.c. | |
1222 | ||
1223 | If the slot records a not-found symbol, then require a precise match. | |
1224 | We could still be lax with whitespace like strcmp_iw though. */ | |
1225 | ||
1226 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
1227 | { | |
1228 | if (strcmp (slot_name, name) != 0) | |
1229 | return 0; | |
1230 | if (slot_domain != domain) | |
1231 | return 0; | |
1232 | } | |
1233 | else | |
1234 | { | |
1235 | struct symbol *sym = slot->value.found; | |
1236 | ||
1237 | if (strcmp_iw (slot_name, name) != 0) | |
1238 | return 0; | |
1239 | if (!symbol_matches_domain (SYMBOL_LANGUAGE (sym), | |
1240 | slot_domain, domain)) | |
1241 | return 0; | |
1242 | } | |
1243 | } | |
1244 | else | |
1245 | { | |
1246 | /* Only one name is NULL. */ | |
1247 | return 0; | |
1248 | } | |
1249 | ||
1250 | return 1; | |
1251 | } | |
1252 | ||
1253 | /* Given a cache of size SIZE, return the size of the struct (with variable | |
1254 | length array) in bytes. */ | |
1255 | ||
1256 | static size_t | |
1257 | symbol_cache_byte_size (unsigned int size) | |
1258 | { | |
1259 | return (sizeof (struct block_symbol_cache) | |
1260 | + ((size - 1) * sizeof (struct symbol_cache_slot))); | |
1261 | } | |
1262 | ||
1263 | /* Resize CACHE. */ | |
1264 | ||
1265 | static void | |
1266 | resize_symbol_cache (struct symbol_cache *cache, unsigned int new_size) | |
1267 | { | |
1268 | /* If there's no change in size, don't do anything. | |
1269 | All caches have the same size, so we can just compare with the size | |
1270 | of the global symbols cache. */ | |
1271 | if ((cache->global_symbols != NULL | |
1272 | && cache->global_symbols->size == new_size) | |
1273 | || (cache->global_symbols == NULL | |
1274 | && new_size == 0)) | |
1275 | return; | |
1276 | ||
1277 | xfree (cache->global_symbols); | |
1278 | xfree (cache->static_symbols); | |
1279 | ||
1280 | if (new_size == 0) | |
1281 | { | |
1282 | cache->global_symbols = NULL; | |
1283 | cache->static_symbols = NULL; | |
1284 | } | |
1285 | else | |
1286 | { | |
1287 | size_t total_size = symbol_cache_byte_size (new_size); | |
1288 | ||
1289 | cache->global_symbols = xcalloc (1, total_size); | |
1290 | cache->static_symbols = xcalloc (1, total_size); | |
1291 | cache->global_symbols->size = new_size; | |
1292 | cache->static_symbols->size = new_size; | |
1293 | } | |
1294 | } | |
1295 | ||
1296 | /* Make a symbol cache of size SIZE. */ | |
1297 | ||
1298 | static struct symbol_cache * | |
1299 | make_symbol_cache (unsigned int size) | |
1300 | { | |
1301 | struct symbol_cache *cache; | |
1302 | ||
1303 | cache = XCNEW (struct symbol_cache); | |
1304 | resize_symbol_cache (cache, symbol_cache_size); | |
1305 | return cache; | |
1306 | } | |
1307 | ||
1308 | /* Free the space used by CACHE. */ | |
1309 | ||
1310 | static void | |
1311 | free_symbol_cache (struct symbol_cache *cache) | |
1312 | { | |
1313 | xfree (cache->global_symbols); | |
1314 | xfree (cache->static_symbols); | |
1315 | xfree (cache); | |
1316 | } | |
1317 | ||
1318 | /* Return the symbol cache of PSPACE. | |
1319 | Create one if it doesn't exist yet. */ | |
1320 | ||
1321 | static struct symbol_cache * | |
1322 | get_symbol_cache (struct program_space *pspace) | |
1323 | { | |
1324 | struct symbol_cache *cache = program_space_data (pspace, symbol_cache_key); | |
1325 | ||
1326 | if (cache == NULL) | |
1327 | { | |
1328 | cache = make_symbol_cache (symbol_cache_size); | |
1329 | set_program_space_data (pspace, symbol_cache_key, cache); | |
1330 | } | |
1331 | ||
1332 | return cache; | |
1333 | } | |
1334 | ||
1335 | /* Delete the symbol cache of PSPACE. | |
1336 | Called when PSPACE is destroyed. */ | |
1337 | ||
1338 | static void | |
1339 | symbol_cache_cleanup (struct program_space *pspace, void *data) | |
1340 | { | |
1341 | struct symbol_cache *cache = data; | |
1342 | ||
1343 | free_symbol_cache (cache); | |
1344 | } | |
1345 | ||
1346 | /* Set the size of the symbol cache in all program spaces. */ | |
1347 | ||
1348 | static void | |
1349 | set_symbol_cache_size (unsigned int new_size) | |
1350 | { | |
1351 | struct program_space *pspace; | |
1352 | ||
1353 | ALL_PSPACES (pspace) | |
1354 | { | |
1355 | struct symbol_cache *cache | |
1356 | = program_space_data (pspace, symbol_cache_key); | |
1357 | ||
1358 | /* The pspace could have been created but not have a cache yet. */ | |
1359 | if (cache != NULL) | |
1360 | resize_symbol_cache (cache, new_size); | |
1361 | } | |
1362 | } | |
1363 | ||
1364 | /* Called when symbol-cache-size is set. */ | |
1365 | ||
1366 | static void | |
1367 | set_symbol_cache_size_handler (char *args, int from_tty, | |
1368 | struct cmd_list_element *c) | |
1369 | { | |
1370 | if (new_symbol_cache_size > MAX_SYMBOL_CACHE_SIZE) | |
1371 | { | |
1372 | /* Restore the previous value. | |
1373 | This is the value the "show" command prints. */ | |
1374 | new_symbol_cache_size = symbol_cache_size; | |
1375 | ||
1376 | error (_("Symbol cache size is too large, max is %u."), | |
1377 | MAX_SYMBOL_CACHE_SIZE); | |
1378 | } | |
1379 | symbol_cache_size = new_symbol_cache_size; | |
1380 | ||
1381 | set_symbol_cache_size (symbol_cache_size); | |
1382 | } | |
1383 | ||
1384 | /* Lookup symbol NAME,DOMAIN in BLOCK in the symbol cache of PSPACE. | |
1385 | OBJFILE_CONTEXT is the current objfile, which may be NULL. | |
1386 | The result is the symbol if found, SYMBOL_LOOKUP_FAILED if a previous lookup | |
1387 | failed (and thus this one will too), or NULL if the symbol is not present | |
1388 | in the cache. | |
1389 | *BSC_PTR, *SLOT_PTR are set to the cache and slot of the symbol, whether | |
1390 | found or not found. */ | |
1391 | ||
1392 | static struct symbol * | |
1393 | symbol_cache_lookup (struct symbol_cache *cache, | |
1394 | struct objfile *objfile_context, int block, | |
1395 | const char *name, domain_enum domain, | |
1396 | struct block_symbol_cache **bsc_ptr, | |
1397 | struct symbol_cache_slot **slot_ptr) | |
1398 | { | |
1399 | struct block_symbol_cache *bsc; | |
1400 | unsigned int hash; | |
1401 | struct symbol_cache_slot *slot; | |
1402 | ||
1403 | if (block == GLOBAL_BLOCK) | |
1404 | bsc = cache->global_symbols; | |
1405 | else | |
1406 | bsc = cache->static_symbols; | |
1407 | if (bsc == NULL) | |
1408 | { | |
1409 | *bsc_ptr = NULL; | |
1410 | *slot_ptr = NULL; | |
1411 | return NULL; | |
1412 | } | |
1413 | ||
1414 | hash = hash_symbol_entry (objfile_context, name, domain); | |
1415 | slot = bsc->symbols + hash % bsc->size; | |
1416 | *bsc_ptr = bsc; | |
1417 | *slot_ptr = slot; | |
1418 | ||
1419 | if (eq_symbol_entry (slot, objfile_context, name, domain)) | |
1420 | { | |
1421 | if (symbol_lookup_debug) | |
1422 | fprintf_unfiltered (gdb_stdlog, | |
1423 | "%s block symbol cache hit%s for %s, %s\n", | |
1424 | block == GLOBAL_BLOCK ? "Global" : "Static", | |
1425 | slot->state == SYMBOL_SLOT_NOT_FOUND | |
1426 | ? " (not found)" : "", | |
1427 | name, domain_name (domain)); | |
1428 | ++bsc->hits; | |
1429 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
1430 | return SYMBOL_LOOKUP_FAILED; | |
1431 | return slot->value.found; | |
1432 | } | |
1433 | ||
1434 | if (symbol_lookup_debug) | |
1435 | { | |
1436 | fprintf_unfiltered (gdb_stdlog, | |
1437 | "%s block symbol cache miss for %s, %s\n", | |
1438 | block == GLOBAL_BLOCK ? "Global" : "Static", | |
1439 | name, domain_name (domain)); | |
1440 | } | |
1441 | ++bsc->misses; | |
1442 | return NULL; | |
1443 | } | |
1444 | ||
1445 | /* Clear out SLOT. */ | |
1446 | ||
1447 | static void | |
1448 | symbol_cache_clear_slot (struct symbol_cache_slot *slot) | |
1449 | { | |
1450 | if (slot->state == SYMBOL_SLOT_NOT_FOUND) | |
1451 | xfree (slot->value.not_found.name); | |
1452 | slot->state = SYMBOL_SLOT_UNUSED; | |
1453 | } | |
1454 | ||
1455 | /* Mark SYMBOL as found in SLOT. | |
1456 | OBJFILE_CONTEXT is the current objfile when the lookup was done, or NULL | |
1457 | if it's not needed to distinguish lookups (STATIC_BLOCK). It is *not* | |
1458 | necessarily the objfile the symbol was found in. */ | |
1459 | ||
1460 | static void | |
1461 | symbol_cache_mark_found (struct block_symbol_cache *bsc, | |
1462 | struct symbol_cache_slot *slot, | |
1463 | struct objfile *objfile_context, | |
1464 | struct symbol *symbol) | |
1465 | { | |
1466 | if (bsc == NULL) | |
1467 | return; | |
1468 | if (slot->state != SYMBOL_SLOT_UNUSED) | |
1469 | { | |
1470 | ++bsc->collisions; | |
1471 | symbol_cache_clear_slot (slot); | |
1472 | } | |
1473 | slot->state = SYMBOL_SLOT_FOUND; | |
1474 | slot->objfile_context = objfile_context; | |
1475 | slot->value.found = symbol; | |
1476 | } | |
1477 | ||
1478 | /* Mark symbol NAME, DOMAIN as not found in SLOT. | |
1479 | OBJFILE_CONTEXT is the current objfile when the lookup was done, or NULL | |
1480 | if it's not needed to distinguish lookups (STATIC_BLOCK). */ | |
1481 | ||
1482 | static void | |
1483 | symbol_cache_mark_not_found (struct block_symbol_cache *bsc, | |
1484 | struct symbol_cache_slot *slot, | |
1485 | struct objfile *objfile_context, | |
1486 | const char *name, domain_enum domain) | |
1487 | { | |
1488 | if (bsc == NULL) | |
1489 | return; | |
1490 | if (slot->state != SYMBOL_SLOT_UNUSED) | |
1491 | { | |
1492 | ++bsc->collisions; | |
1493 | symbol_cache_clear_slot (slot); | |
1494 | } | |
1495 | slot->state = SYMBOL_SLOT_NOT_FOUND; | |
1496 | slot->objfile_context = objfile_context; | |
1497 | slot->value.not_found.name = xstrdup (name); | |
1498 | slot->value.not_found.domain = domain; | |
1499 | } | |
1500 | ||
1501 | /* Flush the symbol cache of PSPACE. */ | |
1502 | ||
1503 | static void | |
1504 | symbol_cache_flush (struct program_space *pspace) | |
1505 | { | |
1506 | struct symbol_cache *cache = program_space_data (pspace, symbol_cache_key); | |
1507 | int pass; | |
1508 | size_t total_size; | |
1509 | ||
1510 | if (cache == NULL) | |
1511 | return; | |
1512 | if (cache->global_symbols == NULL) | |
1513 | { | |
1514 | gdb_assert (symbol_cache_size == 0); | |
1515 | gdb_assert (cache->static_symbols == NULL); | |
1516 | return; | |
1517 | } | |
1518 | ||
1519 | /* If the cache is untouched since the last flush, early exit. | |
1520 | This is important for performance during the startup of a program linked | |
1521 | with 100s (or 1000s) of shared libraries. */ | |
1522 | if (cache->global_symbols->misses == 0 | |
1523 | && cache->static_symbols->misses == 0) | |
1524 | return; | |
1525 | ||
1526 | gdb_assert (cache->global_symbols->size == symbol_cache_size); | |
1527 | gdb_assert (cache->static_symbols->size == symbol_cache_size); | |
1528 | ||
1529 | for (pass = 0; pass < 2; ++pass) | |
1530 | { | |
1531 | struct block_symbol_cache *bsc | |
1532 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1533 | unsigned int i; | |
1534 | ||
1535 | for (i = 0; i < bsc->size; ++i) | |
1536 | symbol_cache_clear_slot (&bsc->symbols[i]); | |
1537 | } | |
1538 | ||
1539 | cache->global_symbols->hits = 0; | |
1540 | cache->global_symbols->misses = 0; | |
1541 | cache->global_symbols->collisions = 0; | |
1542 | cache->static_symbols->hits = 0; | |
1543 | cache->static_symbols->misses = 0; | |
1544 | cache->static_symbols->collisions = 0; | |
1545 | } | |
1546 | ||
1547 | /* Dump CACHE. */ | |
1548 | ||
1549 | static void | |
1550 | symbol_cache_dump (const struct symbol_cache *cache) | |
1551 | { | |
1552 | int pass; | |
1553 | ||
1554 | if (cache->global_symbols == NULL) | |
1555 | { | |
1556 | printf_filtered (" <disabled>\n"); | |
1557 | return; | |
1558 | } | |
1559 | ||
1560 | for (pass = 0; pass < 2; ++pass) | |
1561 | { | |
1562 | const struct block_symbol_cache *bsc | |
1563 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1564 | unsigned int i; | |
1565 | ||
1566 | if (pass == 0) | |
1567 | printf_filtered ("Global symbols:\n"); | |
1568 | else | |
1569 | printf_filtered ("Static symbols:\n"); | |
1570 | ||
1571 | for (i = 0; i < bsc->size; ++i) | |
1572 | { | |
1573 | const struct symbol_cache_slot *slot = &bsc->symbols[i]; | |
1574 | ||
1575 | QUIT; | |
1576 | ||
1577 | switch (slot->state) | |
1578 | { | |
1579 | case SYMBOL_SLOT_UNUSED: | |
1580 | break; | |
1581 | case SYMBOL_SLOT_NOT_FOUND: | |
1582 | printf_filtered (" [%-4u] = %s, %s (not found)\n", i, | |
1583 | host_address_to_string (slot->objfile_context), | |
1584 | slot->value.not_found.name); | |
1585 | break; | |
1586 | case SYMBOL_SLOT_FOUND: | |
1587 | printf_filtered (" [%-4u] = %s, %s\n", i, | |
1588 | host_address_to_string (slot->objfile_context), | |
1589 | SYMBOL_PRINT_NAME (slot->value.found)); | |
1590 | break; | |
1591 | } | |
1592 | } | |
1593 | } | |
1594 | } | |
1595 | ||
1596 | /* The "mt print symbol-cache" command. */ | |
1597 | ||
1598 | static void | |
1599 | maintenance_print_symbol_cache (char *args, int from_tty) | |
1600 | { | |
1601 | struct program_space *pspace; | |
1602 | ||
1603 | ALL_PSPACES (pspace) | |
1604 | { | |
1605 | struct symbol_cache *cache; | |
1606 | ||
1607 | printf_filtered (_("Symbol cache for pspace %d\n%s:\n"), | |
1608 | pspace->num, | |
1609 | pspace->symfile_object_file != NULL | |
1610 | ? objfile_name (pspace->symfile_object_file) | |
1611 | : "(no object file)"); | |
1612 | ||
1613 | /* If the cache hasn't been created yet, avoid creating one. */ | |
1614 | cache = program_space_data (pspace, symbol_cache_key); | |
1615 | if (cache == NULL) | |
1616 | printf_filtered (" <empty>\n"); | |
1617 | else | |
1618 | symbol_cache_dump (cache); | |
1619 | } | |
1620 | } | |
1621 | ||
1622 | /* The "mt flush-symbol-cache" command. */ | |
1623 | ||
1624 | static void | |
1625 | maintenance_flush_symbol_cache (char *args, int from_tty) | |
1626 | { | |
1627 | struct program_space *pspace; | |
1628 | ||
1629 | ALL_PSPACES (pspace) | |
1630 | { | |
1631 | symbol_cache_flush (pspace); | |
1632 | } | |
1633 | } | |
1634 | ||
1635 | /* Print usage statistics of CACHE. */ | |
1636 | ||
1637 | static void | |
1638 | symbol_cache_stats (struct symbol_cache *cache) | |
1639 | { | |
1640 | int pass; | |
1641 | ||
1642 | if (cache->global_symbols == NULL) | |
1643 | { | |
1644 | printf_filtered (" <disabled>\n"); | |
1645 | return; | |
1646 | } | |
1647 | ||
1648 | for (pass = 0; pass < 2; ++pass) | |
1649 | { | |
1650 | const struct block_symbol_cache *bsc | |
1651 | = pass == 0 ? cache->global_symbols : cache->static_symbols; | |
1652 | ||
1653 | QUIT; | |
1654 | ||
1655 | if (pass == 0) | |
1656 | printf_filtered ("Global block cache stats:\n"); | |
1657 | else | |
1658 | printf_filtered ("Static block cache stats:\n"); | |
1659 | ||
1660 | printf_filtered (" size: %u\n", bsc->size); | |
1661 | printf_filtered (" hits: %u\n", bsc->hits); | |
1662 | printf_filtered (" misses: %u\n", bsc->misses); | |
1663 | printf_filtered (" collisions: %u\n", bsc->collisions); | |
1664 | } | |
1665 | } | |
1666 | ||
1667 | /* The "mt print symbol-cache-statistics" command. */ | |
1668 | ||
1669 | static void | |
1670 | maintenance_print_symbol_cache_statistics (char *args, int from_tty) | |
1671 | { | |
1672 | struct program_space *pspace; | |
1673 | ||
1674 | ALL_PSPACES (pspace) | |
1675 | { | |
1676 | struct symbol_cache *cache; | |
1677 | ||
1678 | printf_filtered (_("Symbol cache statistics for pspace %d\n%s:\n"), | |
1679 | pspace->num, | |
1680 | pspace->symfile_object_file != NULL | |
1681 | ? objfile_name (pspace->symfile_object_file) | |
1682 | : "(no object file)"); | |
1683 | ||
1684 | /* If the cache hasn't been created yet, avoid creating one. */ | |
1685 | cache = program_space_data (pspace, symbol_cache_key); | |
1686 | if (cache == NULL) | |
1687 | printf_filtered (" empty, no stats available\n"); | |
1688 | else | |
1689 | symbol_cache_stats (cache); | |
1690 | } | |
1691 | } | |
1692 | ||
1693 | /* This module's 'new_objfile' observer. */ | |
1694 | ||
1695 | static void | |
1696 | symtab_new_objfile_observer (struct objfile *objfile) | |
1697 | { | |
1698 | /* Ideally we'd use OBJFILE->pspace, but OBJFILE may be NULL. */ | |
1699 | symbol_cache_flush (current_program_space); | |
1700 | } | |
1701 | ||
1702 | /* This module's 'free_objfile' observer. */ | |
1703 | ||
1704 | static void | |
1705 | symtab_free_objfile_observer (struct objfile *objfile) | |
1706 | { | |
1707 | symbol_cache_flush (objfile->pspace); | |
1708 | } | |
1709 | \f | |
c906108c SS |
1710 | /* Debug symbols usually don't have section information. We need to dig that |
1711 | out of the minimal symbols and stash that in the debug symbol. */ | |
1712 | ||
ccefe4c4 | 1713 | void |
907fc202 UW |
1714 | fixup_section (struct general_symbol_info *ginfo, |
1715 | CORE_ADDR addr, struct objfile *objfile) | |
c906108c SS |
1716 | { |
1717 | struct minimal_symbol *msym; | |
c906108c | 1718 | |
bccdca4a UW |
1719 | /* First, check whether a minimal symbol with the same name exists |
1720 | and points to the same address. The address check is required | |
1721 | e.g. on PowerPC64, where the minimal symbol for a function will | |
1722 | point to the function descriptor, while the debug symbol will | |
1723 | point to the actual function code. */ | |
907fc202 UW |
1724 | msym = lookup_minimal_symbol_by_pc_name (addr, ginfo->name, objfile); |
1725 | if (msym) | |
efd66ac6 | 1726 | ginfo->section = MSYMBOL_SECTION (msym); |
907fc202 | 1727 | else |
19e2d14b KB |
1728 | { |
1729 | /* Static, function-local variables do appear in the linker | |
1730 | (minimal) symbols, but are frequently given names that won't | |
1731 | be found via lookup_minimal_symbol(). E.g., it has been | |
1732 | observed in frv-uclinux (ELF) executables that a static, | |
1733 | function-local variable named "foo" might appear in the | |
1734 | linker symbols as "foo.6" or "foo.3". Thus, there is no | |
1735 | point in attempting to extend the lookup-by-name mechanism to | |
1736 | handle this case due to the fact that there can be multiple | |
1737 | names. | |
9af17804 | 1738 | |
19e2d14b KB |
1739 | So, instead, search the section table when lookup by name has |
1740 | failed. The ``addr'' and ``endaddr'' fields may have already | |
1741 | been relocated. If so, the relocation offset (i.e. the | |
1742 | ANOFFSET value) needs to be subtracted from these values when | |
1743 | performing the comparison. We unconditionally subtract it, | |
1744 | because, when no relocation has been performed, the ANOFFSET | |
1745 | value will simply be zero. | |
9af17804 | 1746 | |
19e2d14b KB |
1747 | The address of the symbol whose section we're fixing up HAS |
1748 | NOT BEEN adjusted (relocated) yet. It can't have been since | |
1749 | the section isn't yet known and knowing the section is | |
1750 | necessary in order to add the correct relocation value. In | |
1751 | other words, we wouldn't even be in this function (attempting | |
1752 | to compute the section) if it were already known. | |
1753 | ||
1754 | Note that it is possible to search the minimal symbols | |
1755 | (subtracting the relocation value if necessary) to find the | |
1756 | matching minimal symbol, but this is overkill and much less | |
1757 | efficient. It is not necessary to find the matching minimal | |
9af17804 DE |
1758 | symbol, only its section. |
1759 | ||
19e2d14b KB |
1760 | Note that this technique (of doing a section table search) |
1761 | can fail when unrelocated section addresses overlap. For | |
1762 | this reason, we still attempt a lookup by name prior to doing | |
1763 | a search of the section table. */ | |
9af17804 | 1764 | |
19e2d14b | 1765 | struct obj_section *s; |
e27d198c | 1766 | int fallback = -1; |
433759f7 | 1767 | |
19e2d14b KB |
1768 | ALL_OBJFILE_OSECTIONS (objfile, s) |
1769 | { | |
65cf3563 | 1770 | int idx = s - objfile->sections; |
19e2d14b KB |
1771 | CORE_ADDR offset = ANOFFSET (objfile->section_offsets, idx); |
1772 | ||
e27d198c TT |
1773 | if (fallback == -1) |
1774 | fallback = idx; | |
1775 | ||
f1f6aadf PA |
1776 | if (obj_section_addr (s) - offset <= addr |
1777 | && addr < obj_section_endaddr (s) - offset) | |
19e2d14b | 1778 | { |
19e2d14b KB |
1779 | ginfo->section = idx; |
1780 | return; | |
1781 | } | |
1782 | } | |
e27d198c TT |
1783 | |
1784 | /* If we didn't find the section, assume it is in the first | |
1785 | section. If there is no allocated section, then it hardly | |
1786 | matters what we pick, so just pick zero. */ | |
1787 | if (fallback == -1) | |
1788 | ginfo->section = 0; | |
1789 | else | |
1790 | ginfo->section = fallback; | |
19e2d14b | 1791 | } |
c906108c SS |
1792 | } |
1793 | ||
1794 | struct symbol * | |
fba45db2 | 1795 | fixup_symbol_section (struct symbol *sym, struct objfile *objfile) |
c906108c | 1796 | { |
907fc202 UW |
1797 | CORE_ADDR addr; |
1798 | ||
c906108c SS |
1799 | if (!sym) |
1800 | return NULL; | |
1801 | ||
1994afbf DE |
1802 | if (!SYMBOL_OBJFILE_OWNED (sym)) |
1803 | return sym; | |
1804 | ||
907fc202 UW |
1805 | /* We either have an OBJFILE, or we can get at it from the sym's |
1806 | symtab. Anything else is a bug. */ | |
08be3fe3 | 1807 | gdb_assert (objfile || symbol_symtab (sym)); |
907fc202 UW |
1808 | |
1809 | if (objfile == NULL) | |
08be3fe3 | 1810 | objfile = symbol_objfile (sym); |
907fc202 | 1811 | |
e27d198c TT |
1812 | if (SYMBOL_OBJ_SECTION (objfile, sym)) |
1813 | return sym; | |
1814 | ||
907fc202 UW |
1815 | /* We should have an objfile by now. */ |
1816 | gdb_assert (objfile); | |
1817 | ||
1818 | switch (SYMBOL_CLASS (sym)) | |
1819 | { | |
1820 | case LOC_STATIC: | |
1821 | case LOC_LABEL: | |
907fc202 UW |
1822 | addr = SYMBOL_VALUE_ADDRESS (sym); |
1823 | break; | |
1824 | case LOC_BLOCK: | |
1825 | addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); | |
1826 | break; | |
1827 | ||
1828 | default: | |
1829 | /* Nothing else will be listed in the minsyms -- no use looking | |
1830 | it up. */ | |
1831 | return sym; | |
1832 | } | |
1833 | ||
1834 | fixup_section (&sym->ginfo, addr, objfile); | |
c906108c SS |
1835 | |
1836 | return sym; | |
1837 | } | |
1838 | ||
f8eba3c6 TT |
1839 | /* Compute the demangled form of NAME as used by the various symbol |
1840 | lookup functions. The result is stored in *RESULT_NAME. Returns a | |
1841 | cleanup which can be used to clean up the result. | |
1842 | ||
1843 | For Ada, this function just sets *RESULT_NAME to NAME, unmodified. | |
1844 | Normally, Ada symbol lookups are performed using the encoded name | |
1845 | rather than the demangled name, and so it might seem to make sense | |
1846 | for this function to return an encoded version of NAME. | |
1847 | Unfortunately, we cannot do this, because this function is used in | |
1848 | circumstances where it is not appropriate to try to encode NAME. | |
1849 | For instance, when displaying the frame info, we demangle the name | |
1850 | of each parameter, and then perform a symbol lookup inside our | |
1851 | function using that demangled name. In Ada, certain functions | |
1852 | have internally-generated parameters whose name contain uppercase | |
1853 | characters. Encoding those name would result in those uppercase | |
1854 | characters to become lowercase, and thus cause the symbol lookup | |
1855 | to fail. */ | |
c906108c | 1856 | |
f8eba3c6 TT |
1857 | struct cleanup * |
1858 | demangle_for_lookup (const char *name, enum language lang, | |
1859 | const char **result_name) | |
c906108c | 1860 | { |
729051e6 DJ |
1861 | char *demangled_name = NULL; |
1862 | const char *modified_name = NULL; | |
9ee6bb93 | 1863 | struct cleanup *cleanup = make_cleanup (null_cleanup, 0); |
c906108c | 1864 | |
729051e6 DJ |
1865 | modified_name = name; |
1866 | ||
a766d390 | 1867 | /* If we are using C++, D, Go, or Java, demangle the name before doing a |
c378eb4e | 1868 | lookup, so we can always binary search. */ |
53c5240f | 1869 | if (lang == language_cplus) |
729051e6 | 1870 | { |
8de20a37 | 1871 | demangled_name = gdb_demangle (name, DMGL_ANSI | DMGL_PARAMS); |
729051e6 DJ |
1872 | if (demangled_name) |
1873 | { | |
729051e6 | 1874 | modified_name = demangled_name; |
9ee6bb93 | 1875 | make_cleanup (xfree, demangled_name); |
729051e6 | 1876 | } |
71c25dea TT |
1877 | else |
1878 | { | |
1879 | /* If we were given a non-mangled name, canonicalize it | |
1880 | according to the language (so far only for C++). */ | |
1881 | demangled_name = cp_canonicalize_string (name); | |
1882 | if (demangled_name) | |
1883 | { | |
1884 | modified_name = demangled_name; | |
1885 | make_cleanup (xfree, demangled_name); | |
1886 | } | |
1887 | } | |
729051e6 | 1888 | } |
53c5240f | 1889 | else if (lang == language_java) |
987504bb | 1890 | { |
8de20a37 TT |
1891 | demangled_name = gdb_demangle (name, |
1892 | DMGL_ANSI | DMGL_PARAMS | DMGL_JAVA); | |
987504bb JJ |
1893 | if (demangled_name) |
1894 | { | |
987504bb | 1895 | modified_name = demangled_name; |
9ee6bb93 | 1896 | make_cleanup (xfree, demangled_name); |
987504bb JJ |
1897 | } |
1898 | } | |
6aecb9c2 JB |
1899 | else if (lang == language_d) |
1900 | { | |
1901 | demangled_name = d_demangle (name, 0); | |
1902 | if (demangled_name) | |
1903 | { | |
1904 | modified_name = demangled_name; | |
1905 | make_cleanup (xfree, demangled_name); | |
1906 | } | |
1907 | } | |
a766d390 DE |
1908 | else if (lang == language_go) |
1909 | { | |
1910 | demangled_name = go_demangle (name, 0); | |
1911 | if (demangled_name) | |
1912 | { | |
1913 | modified_name = demangled_name; | |
1914 | make_cleanup (xfree, demangled_name); | |
1915 | } | |
1916 | } | |
729051e6 | 1917 | |
f8eba3c6 TT |
1918 | *result_name = modified_name; |
1919 | return cleanup; | |
1920 | } | |
1921 | ||
cf901d3b | 1922 | /* See symtab.h. |
f8eba3c6 | 1923 | |
cf901d3b | 1924 | This function (or rather its subordinates) have a bunch of loops and |
7e082072 DE |
1925 | it would seem to be attractive to put in some QUIT's (though I'm not really |
1926 | sure whether it can run long enough to be really important). But there | |
f8eba3c6 | 1927 | are a few calls for which it would appear to be bad news to quit |
7e082072 | 1928 | out of here: e.g., find_proc_desc in alpha-mdebug-tdep.c. (Note |
f8eba3c6 TT |
1929 | that there is C++ code below which can error(), but that probably |
1930 | doesn't affect these calls since they are looking for a known | |
1931 | variable and thus can probably assume it will never hit the C++ | |
1932 | code). */ | |
1933 | ||
1934 | struct symbol * | |
1935 | lookup_symbol_in_language (const char *name, const struct block *block, | |
1936 | const domain_enum domain, enum language lang, | |
1993b719 | 1937 | struct field_of_this_result *is_a_field_of_this) |
f8eba3c6 TT |
1938 | { |
1939 | const char *modified_name; | |
1940 | struct symbol *returnval; | |
1941 | struct cleanup *cleanup = demangle_for_lookup (name, lang, &modified_name); | |
1942 | ||
94af9270 | 1943 | returnval = lookup_symbol_aux (modified_name, block, domain, lang, |
774b6a14 | 1944 | is_a_field_of_this); |
9ee6bb93 | 1945 | do_cleanups (cleanup); |
fba7f19c | 1946 | |
9af17804 | 1947 | return returnval; |
fba7f19c EZ |
1948 | } |
1949 | ||
cf901d3b | 1950 | /* See symtab.h. */ |
53c5240f PA |
1951 | |
1952 | struct symbol * | |
1953 | lookup_symbol (const char *name, const struct block *block, | |
1993b719 TT |
1954 | domain_enum domain, |
1955 | struct field_of_this_result *is_a_field_of_this) | |
53c5240f PA |
1956 | { |
1957 | return lookup_symbol_in_language (name, block, domain, | |
1958 | current_language->la_language, | |
2570f2b7 | 1959 | is_a_field_of_this); |
53c5240f PA |
1960 | } |
1961 | ||
cf901d3b | 1962 | /* See symtab.h. */ |
66a17cb6 TT |
1963 | |
1964 | struct symbol * | |
1965 | lookup_language_this (const struct language_defn *lang, | |
1966 | const struct block *block) | |
1967 | { | |
1968 | if (lang->la_name_of_this == NULL || block == NULL) | |
1969 | return NULL; | |
1970 | ||
cc485e62 DE |
1971 | if (symbol_lookup_debug > 1) |
1972 | { | |
1973 | struct objfile *objfile = lookup_objfile_from_block (block); | |
1974 | ||
1975 | fprintf_unfiltered (gdb_stdlog, | |
1976 | "lookup_language_this (%s, %s (objfile %s))", | |
1977 | lang->la_name, host_address_to_string (block), | |
1978 | objfile_debug_name (objfile)); | |
1979 | } | |
1980 | ||
03de6823 | 1981 | while (block) |
66a17cb6 TT |
1982 | { |
1983 | struct symbol *sym; | |
1984 | ||
16b2eaa1 | 1985 | sym = block_lookup_symbol (block, lang->la_name_of_this, VAR_DOMAIN); |
66a17cb6 | 1986 | if (sym != NULL) |
f149aabd | 1987 | { |
cc485e62 DE |
1988 | if (symbol_lookup_debug > 1) |
1989 | { | |
1990 | fprintf_unfiltered (gdb_stdlog, " = %s (%s, block %s)\n", | |
1991 | SYMBOL_PRINT_NAME (sym), | |
1992 | host_address_to_string (sym), | |
1993 | host_address_to_string (block)); | |
1994 | } | |
f149aabd TT |
1995 | block_found = block; |
1996 | return sym; | |
1997 | } | |
66a17cb6 | 1998 | if (BLOCK_FUNCTION (block)) |
03de6823 | 1999 | break; |
66a17cb6 TT |
2000 | block = BLOCK_SUPERBLOCK (block); |
2001 | } | |
03de6823 | 2002 | |
cc485e62 DE |
2003 | if (symbol_lookup_debug > 1) |
2004 | fprintf_unfiltered (gdb_stdlog, " = NULL\n"); | |
03de6823 | 2005 | return NULL; |
66a17cb6 TT |
2006 | } |
2007 | ||
2dc3df72 TT |
2008 | /* Given TYPE, a structure/union, |
2009 | return 1 if the component named NAME from the ultimate target | |
2010 | structure/union is defined, otherwise, return 0. */ | |
2011 | ||
2012 | static int | |
1993b719 TT |
2013 | check_field (struct type *type, const char *name, |
2014 | struct field_of_this_result *is_a_field_of_this) | |
2dc3df72 TT |
2015 | { |
2016 | int i; | |
2017 | ||
2018 | /* The type may be a stub. */ | |
2019 | CHECK_TYPEDEF (type); | |
2020 | ||
2021 | for (i = TYPE_NFIELDS (type) - 1; i >= TYPE_N_BASECLASSES (type); i--) | |
2022 | { | |
2023 | const char *t_field_name = TYPE_FIELD_NAME (type, i); | |
2024 | ||
2025 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) | |
1993b719 TT |
2026 | { |
2027 | is_a_field_of_this->type = type; | |
2028 | is_a_field_of_this->field = &TYPE_FIELD (type, i); | |
2029 | return 1; | |
2030 | } | |
2dc3df72 TT |
2031 | } |
2032 | ||
2033 | /* C++: If it was not found as a data field, then try to return it | |
2034 | as a pointer to a method. */ | |
2035 | ||
2036 | for (i = TYPE_NFN_FIELDS (type) - 1; i >= 0; --i) | |
2037 | { | |
2038 | if (strcmp_iw (TYPE_FN_FIELDLIST_NAME (type, i), name) == 0) | |
1993b719 TT |
2039 | { |
2040 | is_a_field_of_this->type = type; | |
2041 | is_a_field_of_this->fn_field = &TYPE_FN_FIELDLIST (type, i); | |
2042 | return 1; | |
2043 | } | |
2dc3df72 TT |
2044 | } |
2045 | ||
2046 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1993b719 | 2047 | if (check_field (TYPE_BASECLASS (type, i), name, is_a_field_of_this)) |
2dc3df72 TT |
2048 | return 1; |
2049 | ||
2050 | return 0; | |
2051 | } | |
2052 | ||
53c5240f | 2053 | /* Behave like lookup_symbol except that NAME is the natural name |
7e082072 | 2054 | (e.g., demangled name) of the symbol that we're looking for. */ |
5ad1c190 | 2055 | |
fba7f19c | 2056 | static struct symbol * |
94af9270 KS |
2057 | lookup_symbol_aux (const char *name, const struct block *block, |
2058 | const domain_enum domain, enum language language, | |
1993b719 | 2059 | struct field_of_this_result *is_a_field_of_this) |
fba7f19c | 2060 | { |
8155455b | 2061 | struct symbol *sym; |
53c5240f | 2062 | const struct language_defn *langdef; |
406bc4de | 2063 | |
cc485e62 DE |
2064 | if (symbol_lookup_debug) |
2065 | { | |
2066 | struct objfile *objfile = lookup_objfile_from_block (block); | |
2067 | ||
2068 | fprintf_unfiltered (gdb_stdlog, | |
2069 | "lookup_symbol_aux (%s, %s (objfile %s), %s, %s)\n", | |
2070 | name, host_address_to_string (block), | |
2071 | objfile != NULL | |
2072 | ? objfile_debug_name (objfile) : "NULL", | |
2073 | domain_name (domain), language_str (language)); | |
2074 | } | |
2075 | ||
1994afbf DE |
2076 | /* Initialize block_found so that the language la_lookup_symbol_nonlocal |
2077 | routines don't have to set it (to NULL) if a primitive type is found. | |
2078 | We do this early so that block_found is also NULL if no symbol is | |
2079 | found (though this is not part of the API, and callers cannot assume | |
2080 | this). */ | |
2081 | block_found = NULL; | |
2082 | ||
9a146a11 EZ |
2083 | /* Make sure we do something sensible with is_a_field_of_this, since |
2084 | the callers that set this parameter to some non-null value will | |
1993b719 TT |
2085 | certainly use it later. If we don't set it, the contents of |
2086 | is_a_field_of_this are undefined. */ | |
9a146a11 | 2087 | if (is_a_field_of_this != NULL) |
1993b719 | 2088 | memset (is_a_field_of_this, 0, sizeof (*is_a_field_of_this)); |
9a146a11 | 2089 | |
e4051eeb DC |
2090 | /* Search specified block and its superiors. Don't search |
2091 | STATIC_BLOCK or GLOBAL_BLOCK. */ | |
c906108c | 2092 | |
74016e12 | 2093 | sym = lookup_local_symbol (name, block, domain, language); |
8155455b | 2094 | if (sym != NULL) |
cc485e62 DE |
2095 | { |
2096 | if (symbol_lookup_debug) | |
2097 | { | |
2098 | fprintf_unfiltered (gdb_stdlog, "lookup_symbol_aux (...) = %s\n", | |
2099 | host_address_to_string (sym)); | |
2100 | } | |
2101 | return sym; | |
2102 | } | |
c906108c | 2103 | |
53c5240f | 2104 | /* If requested to do so by the caller and if appropriate for LANGUAGE, |
13387711 | 2105 | check to see if NAME is a field of `this'. */ |
53c5240f PA |
2106 | |
2107 | langdef = language_def (language); | |
5f9a71c3 | 2108 | |
6592e36f TT |
2109 | /* Don't do this check if we are searching for a struct. It will |
2110 | not be found by check_field, but will be found by other | |
2111 | means. */ | |
2112 | if (is_a_field_of_this != NULL && domain != STRUCT_DOMAIN) | |
c906108c | 2113 | { |
66a17cb6 | 2114 | struct symbol *sym = lookup_language_this (langdef, block); |
2b2d9e11 | 2115 | |
2b2d9e11 | 2116 | if (sym) |
c906108c | 2117 | { |
2b2d9e11 | 2118 | struct type *t = sym->type; |
9af17804 | 2119 | |
2b2d9e11 VP |
2120 | /* I'm not really sure that type of this can ever |
2121 | be typedefed; just be safe. */ | |
2122 | CHECK_TYPEDEF (t); | |
2123 | if (TYPE_CODE (t) == TYPE_CODE_PTR | |
2124 | || TYPE_CODE (t) == TYPE_CODE_REF) | |
2125 | t = TYPE_TARGET_TYPE (t); | |
9af17804 | 2126 | |
2b2d9e11 VP |
2127 | if (TYPE_CODE (t) != TYPE_CODE_STRUCT |
2128 | && TYPE_CODE (t) != TYPE_CODE_UNION) | |
9af17804 | 2129 | error (_("Internal error: `%s' is not an aggregate"), |
2b2d9e11 | 2130 | langdef->la_name_of_this); |
9af17804 | 2131 | |
1993b719 | 2132 | if (check_field (t, name, is_a_field_of_this)) |
cc485e62 DE |
2133 | { |
2134 | if (symbol_lookup_debug) | |
2135 | { | |
2136 | fprintf_unfiltered (gdb_stdlog, | |
2137 | "lookup_symbol_aux (...) = NULL\n"); | |
2138 | } | |
2139 | return NULL; | |
2140 | } | |
c906108c SS |
2141 | } |
2142 | } | |
2143 | ||
53c5240f | 2144 | /* Now do whatever is appropriate for LANGUAGE to look |
774b6a14 | 2145 | up static and global variables. */ |
c906108c | 2146 | |
f606139a | 2147 | sym = langdef->la_lookup_symbol_nonlocal (langdef, name, block, domain); |
774b6a14 | 2148 | if (sym != NULL) |
cc485e62 DE |
2149 | { |
2150 | if (symbol_lookup_debug) | |
2151 | { | |
2152 | fprintf_unfiltered (gdb_stdlog, "lookup_symbol_aux (...) = %s\n", | |
2153 | host_address_to_string (sym)); | |
2154 | } | |
2155 | return sym; | |
2156 | } | |
c906108c | 2157 | |
774b6a14 TT |
2158 | /* Now search all static file-level symbols. Not strictly correct, |
2159 | but more useful than an error. */ | |
41f62f39 | 2160 | |
cc485e62 DE |
2161 | sym = lookup_static_symbol (name, domain); |
2162 | if (symbol_lookup_debug) | |
2163 | { | |
2164 | fprintf_unfiltered (gdb_stdlog, "lookup_symbol_aux (...) = %s\n", | |
2165 | sym != NULL ? host_address_to_string (sym) : "NULL"); | |
2166 | } | |
2167 | return sym; | |
41f62f39 JK |
2168 | } |
2169 | ||
e4051eeb | 2170 | /* Check to see if the symbol is defined in BLOCK or its superiors. |
89a9d1b1 | 2171 | Don't search STATIC_BLOCK or GLOBAL_BLOCK. */ |
8155455b DC |
2172 | |
2173 | static struct symbol * | |
74016e12 DE |
2174 | lookup_local_symbol (const char *name, const struct block *block, |
2175 | const domain_enum domain, | |
2176 | enum language language) | |
8155455b DC |
2177 | { |
2178 | struct symbol *sym; | |
89a9d1b1 | 2179 | const struct block *static_block = block_static_block (block); |
13387711 SW |
2180 | const char *scope = block_scope (block); |
2181 | ||
e4051eeb DC |
2182 | /* Check if either no block is specified or it's a global block. */ |
2183 | ||
89a9d1b1 DC |
2184 | if (static_block == NULL) |
2185 | return NULL; | |
e4051eeb | 2186 | |
89a9d1b1 | 2187 | while (block != static_block) |
f61e8913 | 2188 | { |
d1a2d36d | 2189 | sym = lookup_symbol_in_block (name, block, domain); |
f61e8913 DC |
2190 | if (sym != NULL) |
2191 | return sym; | |
edb3359d | 2192 | |
f55ee35c | 2193 | if (language == language_cplus || language == language_fortran) |
13387711 | 2194 | { |
34eaf542 TT |
2195 | sym = cp_lookup_symbol_imports_or_template (scope, name, block, |
2196 | domain); | |
13387711 SW |
2197 | if (sym != NULL) |
2198 | return sym; | |
2199 | } | |
2200 | ||
edb3359d DJ |
2201 | if (BLOCK_FUNCTION (block) != NULL && block_inlined_p (block)) |
2202 | break; | |
f61e8913 DC |
2203 | block = BLOCK_SUPERBLOCK (block); |
2204 | } | |
2205 | ||
3aee438b | 2206 | /* We've reached the end of the function without finding a result. */ |
e4051eeb | 2207 | |
f61e8913 DC |
2208 | return NULL; |
2209 | } | |
2210 | ||
cf901d3b | 2211 | /* See symtab.h. */ |
3a40aaa0 | 2212 | |
c0201579 | 2213 | struct objfile * |
3a40aaa0 UW |
2214 | lookup_objfile_from_block (const struct block *block) |
2215 | { | |
2216 | struct objfile *obj; | |
43f3e411 | 2217 | struct compunit_symtab *cust; |
3a40aaa0 UW |
2218 | |
2219 | if (block == NULL) | |
2220 | return NULL; | |
2221 | ||
2222 | block = block_global_block (block); | |
43f3e411 DE |
2223 | /* Look through all blockvectors. */ |
2224 | ALL_COMPUNITS (obj, cust) | |
2225 | if (block == BLOCKVECTOR_BLOCK (COMPUNIT_BLOCKVECTOR (cust), | |
2226 | GLOBAL_BLOCK)) | |
61f0d762 JK |
2227 | { |
2228 | if (obj->separate_debug_objfile_backlink) | |
2229 | obj = obj->separate_debug_objfile_backlink; | |
2230 | ||
2231 | return obj; | |
2232 | } | |
3a40aaa0 UW |
2233 | |
2234 | return NULL; | |
2235 | } | |
2236 | ||
cf901d3b | 2237 | /* See symtab.h. */ |
f61e8913 | 2238 | |
5f9a71c3 | 2239 | struct symbol * |
d1a2d36d DE |
2240 | lookup_symbol_in_block (const char *name, const struct block *block, |
2241 | const domain_enum domain) | |
f61e8913 DC |
2242 | { |
2243 | struct symbol *sym; | |
f61e8913 | 2244 | |
cc485e62 DE |
2245 | if (symbol_lookup_debug > 1) |
2246 | { | |
2247 | struct objfile *objfile = lookup_objfile_from_block (block); | |
2248 | ||
2249 | fprintf_unfiltered (gdb_stdlog, | |
2250 | "lookup_symbol_in_block (%s, %s (objfile %s), %s)", | |
2251 | name, host_address_to_string (block), | |
2252 | objfile_debug_name (objfile), | |
2253 | domain_name (domain)); | |
2254 | } | |
2255 | ||
16b2eaa1 | 2256 | sym = block_lookup_symbol (block, name, domain); |
f61e8913 | 2257 | if (sym) |
8155455b | 2258 | { |
cc485e62 DE |
2259 | if (symbol_lookup_debug > 1) |
2260 | { | |
2261 | fprintf_unfiltered (gdb_stdlog, " = %s\n", | |
2262 | host_address_to_string (sym)); | |
2263 | } | |
f61e8913 | 2264 | block_found = block; |
21b556f4 | 2265 | return fixup_symbol_section (sym, NULL); |
8155455b DC |
2266 | } |
2267 | ||
cc485e62 DE |
2268 | if (symbol_lookup_debug > 1) |
2269 | fprintf_unfiltered (gdb_stdlog, " = NULL\n"); | |
8155455b DC |
2270 | return NULL; |
2271 | } | |
2272 | ||
cf901d3b | 2273 | /* See symtab.h. */ |
3a40aaa0 UW |
2274 | |
2275 | struct symbol * | |
efad9b6a | 2276 | lookup_global_symbol_from_objfile (struct objfile *main_objfile, |
3a40aaa0 | 2277 | const char *name, |
21b556f4 | 2278 | const domain_enum domain) |
3a40aaa0 | 2279 | { |
efad9b6a | 2280 | struct objfile *objfile; |
3a40aaa0 | 2281 | |
15d123c9 TG |
2282 | for (objfile = main_objfile; |
2283 | objfile; | |
2284 | objfile = objfile_separate_debug_iterate (main_objfile, objfile)) | |
2285 | { | |
fe2a438d DE |
2286 | struct symbol *sym = lookup_symbol_in_objfile (objfile, GLOBAL_BLOCK, |
2287 | name, domain); | |
15d123c9 | 2288 | |
fe2a438d | 2289 | if (sym != NULL) |
ccefe4c4 | 2290 | return sym; |
15d123c9 | 2291 | } |
56e3f43c | 2292 | |
3a40aaa0 UW |
2293 | return NULL; |
2294 | } | |
2295 | ||
19630284 JB |
2296 | /* Check to see if the symbol is defined in one of the OBJFILE's |
2297 | symtabs. BLOCK_INDEX should be either GLOBAL_BLOCK or STATIC_BLOCK, | |
8155455b DC |
2298 | depending on whether or not we want to search global symbols or |
2299 | static symbols. */ | |
2300 | ||
19630284 | 2301 | static struct symbol * |
74016e12 DE |
2302 | lookup_symbol_in_objfile_symtabs (struct objfile *objfile, int block_index, |
2303 | const char *name, const domain_enum domain) | |
19630284 | 2304 | { |
43f3e411 | 2305 | struct compunit_symtab *cust; |
19630284 | 2306 | |
ba715d7f JK |
2307 | gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK); |
2308 | ||
cc485e62 DE |
2309 | if (symbol_lookup_debug > 1) |
2310 | { | |
2311 | fprintf_unfiltered (gdb_stdlog, | |
2312 | "lookup_symbol_in_objfile_symtabs (%s, %s, %s, %s)", | |
2313 | objfile_debug_name (objfile), | |
2314 | block_index == GLOBAL_BLOCK | |
2315 | ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
2316 | name, domain_name (domain)); | |
2317 | } | |
2318 | ||
43f3e411 | 2319 | ALL_OBJFILE_COMPUNITS (objfile, cust) |
a743abeb | 2320 | { |
43f3e411 DE |
2321 | const struct blockvector *bv; |
2322 | const struct block *block; | |
2323 | struct symbol *sym; | |
2324 | ||
2325 | bv = COMPUNIT_BLOCKVECTOR (cust); | |
a743abeb | 2326 | block = BLOCKVECTOR_BLOCK (bv, block_index); |
ba715d7f | 2327 | sym = block_lookup_symbol_primary (block, name, domain); |
a743abeb DE |
2328 | if (sym) |
2329 | { | |
cc485e62 DE |
2330 | if (symbol_lookup_debug > 1) |
2331 | { | |
2332 | fprintf_unfiltered (gdb_stdlog, " = %s (block %s)\n", | |
2333 | host_address_to_string (sym), | |
2334 | host_address_to_string (block)); | |
2335 | } | |
a743abeb DE |
2336 | block_found = block; |
2337 | return fixup_symbol_section (sym, objfile); | |
2338 | } | |
2339 | } | |
19630284 | 2340 | |
cc485e62 DE |
2341 | if (symbol_lookup_debug > 1) |
2342 | fprintf_unfiltered (gdb_stdlog, " = NULL\n"); | |
19630284 JB |
2343 | return NULL; |
2344 | } | |
2345 | ||
74016e12 | 2346 | /* Wrapper around lookup_symbol_in_objfile_symtabs for search_symbols. |
422d65e7 | 2347 | Look up LINKAGE_NAME in DOMAIN in the global and static blocks of OBJFILE |
01465b56 DE |
2348 | and all associated separate debug objfiles. |
2349 | ||
2350 | Normally we only look in OBJFILE, and not any separate debug objfiles | |
2351 | because the outer loop will cause them to be searched too. This case is | |
2352 | different. Here we're called from search_symbols where it will only | |
2353 | call us for the the objfile that contains a matching minsym. */ | |
422d65e7 DE |
2354 | |
2355 | static struct symbol * | |
2356 | lookup_symbol_in_objfile_from_linkage_name (struct objfile *objfile, | |
2357 | const char *linkage_name, | |
2358 | domain_enum domain) | |
2359 | { | |
2360 | enum language lang = current_language->la_language; | |
2361 | const char *modified_name; | |
2362 | struct cleanup *cleanup = demangle_for_lookup (linkage_name, lang, | |
2363 | &modified_name); | |
2364 | struct objfile *main_objfile, *cur_objfile; | |
2365 | ||
2366 | if (objfile->separate_debug_objfile_backlink) | |
2367 | main_objfile = objfile->separate_debug_objfile_backlink; | |
2368 | else | |
2369 | main_objfile = objfile; | |
2370 | ||
2371 | for (cur_objfile = main_objfile; | |
2372 | cur_objfile; | |
2373 | cur_objfile = objfile_separate_debug_iterate (main_objfile, cur_objfile)) | |
2374 | { | |
2375 | struct symbol *sym; | |
2376 | ||
74016e12 DE |
2377 | sym = lookup_symbol_in_objfile_symtabs (cur_objfile, GLOBAL_BLOCK, |
2378 | modified_name, domain); | |
422d65e7 | 2379 | if (sym == NULL) |
74016e12 DE |
2380 | sym = lookup_symbol_in_objfile_symtabs (cur_objfile, STATIC_BLOCK, |
2381 | modified_name, domain); | |
422d65e7 DE |
2382 | if (sym != NULL) |
2383 | { | |
2384 | do_cleanups (cleanup); | |
2385 | return sym; | |
2386 | } | |
2387 | } | |
2388 | ||
2389 | do_cleanups (cleanup); | |
2390 | return NULL; | |
2391 | } | |
2392 | ||
08c23b0d TT |
2393 | /* A helper function that throws an exception when a symbol was found |
2394 | in a psymtab but not in a symtab. */ | |
2395 | ||
2396 | static void ATTRIBUTE_NORETURN | |
f88cb4b6 | 2397 | error_in_psymtab_expansion (int block_index, const char *name, |
43f3e411 | 2398 | struct compunit_symtab *cust) |
08c23b0d TT |
2399 | { |
2400 | error (_("\ | |
2401 | Internal: %s symbol `%s' found in %s psymtab but not in symtab.\n\ | |
2402 | %s may be an inlined function, or may be a template function\n \ | |
2403 | (if a template, try specifying an instantiation: %s<type>)."), | |
f88cb4b6 | 2404 | block_index == GLOBAL_BLOCK ? "global" : "static", |
43f3e411 DE |
2405 | name, |
2406 | symtab_to_filename_for_display (compunit_primary_filetab (cust)), | |
2407 | name, name); | |
08c23b0d TT |
2408 | } |
2409 | ||
74016e12 DE |
2410 | /* A helper function for various lookup routines that interfaces with |
2411 | the "quick" symbol table functions. */ | |
8155455b DC |
2412 | |
2413 | static struct symbol * | |
74016e12 DE |
2414 | lookup_symbol_via_quick_fns (struct objfile *objfile, int block_index, |
2415 | const char *name, const domain_enum domain) | |
8155455b | 2416 | { |
43f3e411 | 2417 | struct compunit_symtab *cust; |
346d1dfe | 2418 | const struct blockvector *bv; |
8155455b | 2419 | const struct block *block; |
ccefe4c4 | 2420 | struct symbol *sym; |
8155455b | 2421 | |
ccefe4c4 TT |
2422 | if (!objfile->sf) |
2423 | return NULL; | |
cc485e62 DE |
2424 | |
2425 | if (symbol_lookup_debug > 1) | |
2426 | { | |
2427 | fprintf_unfiltered (gdb_stdlog, | |
2428 | "lookup_symbol_via_quick_fns (%s, %s, %s, %s)\n", | |
2429 | objfile_debug_name (objfile), | |
2430 | block_index == GLOBAL_BLOCK | |
2431 | ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
2432 | name, domain_name (domain)); | |
2433 | } | |
2434 | ||
43f3e411 DE |
2435 | cust = objfile->sf->qf->lookup_symbol (objfile, block_index, name, domain); |
2436 | if (cust == NULL) | |
cc485e62 DE |
2437 | { |
2438 | if (symbol_lookup_debug > 1) | |
2439 | { | |
2440 | fprintf_unfiltered (gdb_stdlog, | |
2441 | "lookup_symbol_via_quick_fns (...) = NULL\n"); | |
2442 | } | |
2443 | return NULL; | |
2444 | } | |
8155455b | 2445 | |
43f3e411 | 2446 | bv = COMPUNIT_BLOCKVECTOR (cust); |
f88cb4b6 | 2447 | block = BLOCKVECTOR_BLOCK (bv, block_index); |
16b2eaa1 | 2448 | sym = block_lookup_symbol (block, name, domain); |
ccefe4c4 | 2449 | if (!sym) |
43f3e411 | 2450 | error_in_psymtab_expansion (block_index, name, cust); |
cc485e62 DE |
2451 | |
2452 | if (symbol_lookup_debug > 1) | |
2453 | { | |
2454 | fprintf_unfiltered (gdb_stdlog, | |
2455 | "lookup_symbol_via_quick_fns (...) = %s (block %s)\n", | |
2456 | host_address_to_string (sym), | |
2457 | host_address_to_string (block)); | |
2458 | } | |
2459 | ||
ec201f0c | 2460 | block_found = block; |
ccefe4c4 | 2461 | return fixup_symbol_section (sym, objfile); |
8155455b DC |
2462 | } |
2463 | ||
cf901d3b | 2464 | /* See symtab.h. */ |
5f9a71c3 DC |
2465 | |
2466 | struct symbol * | |
f606139a DE |
2467 | basic_lookup_symbol_nonlocal (const struct language_defn *langdef, |
2468 | const char *name, | |
5f9a71c3 | 2469 | const struct block *block, |
21b556f4 | 2470 | const domain_enum domain) |
5f9a71c3 DC |
2471 | { |
2472 | struct symbol *sym; | |
2473 | ||
2474 | /* NOTE: carlton/2003-05-19: The comments below were written when | |
2475 | this (or what turned into this) was part of lookup_symbol_aux; | |
2476 | I'm much less worried about these questions now, since these | |
2477 | decisions have turned out well, but I leave these comments here | |
2478 | for posterity. */ | |
2479 | ||
2480 | /* NOTE: carlton/2002-12-05: There is a question as to whether or | |
2481 | not it would be appropriate to search the current global block | |
2482 | here as well. (That's what this code used to do before the | |
2483 | is_a_field_of_this check was moved up.) On the one hand, it's | |
af3768e9 | 2484 | redundant with the lookup in all objfiles search that happens |
5f9a71c3 DC |
2485 | next. On the other hand, if decode_line_1 is passed an argument |
2486 | like filename:var, then the user presumably wants 'var' to be | |
2487 | searched for in filename. On the third hand, there shouldn't be | |
2488 | multiple global variables all of which are named 'var', and it's | |
2489 | not like decode_line_1 has ever restricted its search to only | |
2490 | global variables in a single filename. All in all, only | |
2491 | searching the static block here seems best: it's correct and it's | |
2492 | cleanest. */ | |
2493 | ||
2494 | /* NOTE: carlton/2002-12-05: There's also a possible performance | |
2495 | issue here: if you usually search for global symbols in the | |
2496 | current file, then it would be slightly better to search the | |
2497 | current global block before searching all the symtabs. But there | |
2498 | are other factors that have a much greater effect on performance | |
2499 | than that one, so I don't think we should worry about that for | |
2500 | now. */ | |
2501 | ||
d9060ba6 DE |
2502 | /* NOTE: dje/2014-10-26: The lookup in all objfiles search could skip |
2503 | the current objfile. Searching the current objfile first is useful | |
2504 | for both matching user expectations as well as performance. */ | |
2505 | ||
24d864bb | 2506 | sym = lookup_symbol_in_static_block (name, block, domain); |
5f9a71c3 DC |
2507 | if (sym != NULL) |
2508 | return sym; | |
2509 | ||
1994afbf DE |
2510 | /* If we didn't find a definition for a builtin type in the static block, |
2511 | search for it now. This is actually the right thing to do and can be | |
2512 | a massive performance win. E.g., when debugging a program with lots of | |
2513 | shared libraries we could search all of them only to find out the | |
2514 | builtin type isn't defined in any of them. This is common for types | |
2515 | like "void". */ | |
2516 | if (domain == VAR_DOMAIN) | |
2517 | { | |
2518 | struct gdbarch *gdbarch; | |
2519 | ||
2520 | if (block == NULL) | |
2521 | gdbarch = target_gdbarch (); | |
2522 | else | |
2523 | gdbarch = block_gdbarch (block); | |
2524 | sym = language_lookup_primitive_type_as_symbol (langdef, gdbarch, name); | |
2525 | if (sym != NULL) | |
2526 | return sym; | |
2527 | } | |
2528 | ||
08724ab7 | 2529 | return lookup_global_symbol (name, block, domain); |
5f9a71c3 DC |
2530 | } |
2531 | ||
cf901d3b | 2532 | /* See symtab.h. */ |
5f9a71c3 DC |
2533 | |
2534 | struct symbol * | |
24d864bb DE |
2535 | lookup_symbol_in_static_block (const char *name, |
2536 | const struct block *block, | |
2537 | const domain_enum domain) | |
5f9a71c3 DC |
2538 | { |
2539 | const struct block *static_block = block_static_block (block); | |
cc485e62 | 2540 | struct symbol *sym; |
5f9a71c3 | 2541 | |
cc485e62 | 2542 | if (static_block == NULL) |
5f9a71c3 | 2543 | return NULL; |
cc485e62 DE |
2544 | |
2545 | if (symbol_lookup_debug) | |
2546 | { | |
2547 | struct objfile *objfile = lookup_objfile_from_block (static_block); | |
2548 | ||
2549 | fprintf_unfiltered (gdb_stdlog, | |
2550 | "lookup_symbol_in_static_block (%s, %s (objfile %s)," | |
2551 | " %s)\n", | |
2552 | name, | |
2553 | host_address_to_string (block), | |
2554 | objfile_debug_name (objfile), | |
2555 | domain_name (domain)); | |
2556 | } | |
2557 | ||
2558 | sym = lookup_symbol_in_block (name, static_block, domain); | |
2559 | if (symbol_lookup_debug) | |
2560 | { | |
2561 | fprintf_unfiltered (gdb_stdlog, | |
2562 | "lookup_symbol_in_static_block (...) = %s\n", | |
2563 | sym != NULL ? host_address_to_string (sym) : "NULL"); | |
2564 | } | |
2565 | return sym; | |
5f9a71c3 DC |
2566 | } |
2567 | ||
af3768e9 DE |
2568 | /* Perform the standard symbol lookup of NAME in OBJFILE: |
2569 | 1) First search expanded symtabs, and if not found | |
2570 | 2) Search the "quick" symtabs (partial or .gdb_index). | |
2571 | BLOCK_INDEX is one of GLOBAL_BLOCK or STATIC_BLOCK. */ | |
2572 | ||
2573 | static struct symbol * | |
2574 | lookup_symbol_in_objfile (struct objfile *objfile, int block_index, | |
2575 | const char *name, const domain_enum domain) | |
2576 | { | |
2577 | struct symbol *result; | |
2578 | ||
cc485e62 DE |
2579 | if (symbol_lookup_debug) |
2580 | { | |
2581 | fprintf_unfiltered (gdb_stdlog, | |
2582 | "lookup_symbol_in_objfile (%s, %s, %s, %s)\n", | |
2583 | objfile_debug_name (objfile), | |
2584 | block_index == GLOBAL_BLOCK | |
2585 | ? "GLOBAL_BLOCK" : "STATIC_BLOCK", | |
2586 | name, domain_name (domain)); | |
2587 | } | |
2588 | ||
af3768e9 DE |
2589 | result = lookup_symbol_in_objfile_symtabs (objfile, block_index, |
2590 | name, domain); | |
cc485e62 | 2591 | if (result != NULL) |
af3768e9 | 2592 | { |
cc485e62 DE |
2593 | if (symbol_lookup_debug) |
2594 | { | |
2595 | fprintf_unfiltered (gdb_stdlog, | |
2596 | "lookup_symbol_in_objfile (...) = %s" | |
2597 | " (in symtabs)\n", | |
2598 | host_address_to_string (result)); | |
2599 | } | |
2600 | return result; | |
af3768e9 DE |
2601 | } |
2602 | ||
cc485e62 DE |
2603 | result = lookup_symbol_via_quick_fns (objfile, block_index, |
2604 | name, domain); | |
2605 | if (symbol_lookup_debug) | |
2606 | { | |
2607 | fprintf_unfiltered (gdb_stdlog, | |
2608 | "lookup_symbol_in_objfile (...) = %s%s\n", | |
2609 | result != NULL | |
2610 | ? host_address_to_string (result) | |
2611 | : "NULL", | |
2612 | result != NULL ? " (via quick fns)" : ""); | |
2613 | } | |
af3768e9 DE |
2614 | return result; |
2615 | } | |
2616 | ||
2617 | /* See symtab.h. */ | |
2618 | ||
2619 | struct symbol * | |
2620 | lookup_static_symbol (const char *name, const domain_enum domain) | |
2621 | { | |
f57d2163 | 2622 | struct symbol_cache *cache = get_symbol_cache (current_program_space); |
af3768e9 DE |
2623 | struct objfile *objfile; |
2624 | struct symbol *result; | |
f57d2163 DE |
2625 | struct block_symbol_cache *bsc; |
2626 | struct symbol_cache_slot *slot; | |
2627 | ||
2628 | /* Lookup in STATIC_BLOCK is not current-objfile-dependent, so just pass | |
2629 | NULL for OBJFILE_CONTEXT. */ | |
2630 | result = symbol_cache_lookup (cache, NULL, STATIC_BLOCK, name, domain, | |
2631 | &bsc, &slot); | |
2632 | if (result != NULL) | |
2633 | { | |
2634 | if (result == SYMBOL_LOOKUP_FAILED) | |
2635 | return NULL; | |
2636 | return result; | |
2637 | } | |
af3768e9 DE |
2638 | |
2639 | ALL_OBJFILES (objfile) | |
2640 | { | |
2641 | result = lookup_symbol_in_objfile (objfile, STATIC_BLOCK, name, domain); | |
2642 | if (result != NULL) | |
f57d2163 DE |
2643 | { |
2644 | /* Still pass NULL for OBJFILE_CONTEXT here. */ | |
2645 | symbol_cache_mark_found (bsc, slot, NULL, result); | |
2646 | return result; | |
2647 | } | |
af3768e9 DE |
2648 | } |
2649 | ||
f57d2163 DE |
2650 | /* Still pass NULL for OBJFILE_CONTEXT here. */ |
2651 | symbol_cache_mark_not_found (bsc, slot, NULL, name, domain); | |
af3768e9 DE |
2652 | return NULL; |
2653 | } | |
2654 | ||
19630284 JB |
2655 | /* Private data to be used with lookup_symbol_global_iterator_cb. */ |
2656 | ||
2657 | struct global_sym_lookup_data | |
2658 | { | |
2659 | /* The name of the symbol we are searching for. */ | |
2660 | const char *name; | |
2661 | ||
2662 | /* The domain to use for our search. */ | |
2663 | domain_enum domain; | |
2664 | ||
2665 | /* The field where the callback should store the symbol if found. | |
2666 | It should be initialized to NULL before the search is started. */ | |
2667 | struct symbol *result; | |
2668 | }; | |
2669 | ||
2670 | /* A callback function for gdbarch_iterate_over_objfiles_in_search_order. | |
2671 | It searches by name for a symbol in the GLOBAL_BLOCK of the given | |
2672 | OBJFILE. The arguments for the search are passed via CB_DATA, | |
2673 | which in reality is a pointer to struct global_sym_lookup_data. */ | |
2674 | ||
2675 | static int | |
2676 | lookup_symbol_global_iterator_cb (struct objfile *objfile, | |
2677 | void *cb_data) | |
2678 | { | |
2679 | struct global_sym_lookup_data *data = | |
2680 | (struct global_sym_lookup_data *) cb_data; | |
2681 | ||
2682 | gdb_assert (data->result == NULL); | |
2683 | ||
af3768e9 DE |
2684 | data->result = lookup_symbol_in_objfile (objfile, GLOBAL_BLOCK, |
2685 | data->name, data->domain); | |
19630284 JB |
2686 | |
2687 | /* If we found a match, tell the iterator to stop. Otherwise, | |
2688 | keep going. */ | |
2689 | return (data->result != NULL); | |
2690 | } | |
2691 | ||
cf901d3b | 2692 | /* See symtab.h. */ |
5f9a71c3 DC |
2693 | |
2694 | struct symbol * | |
08724ab7 | 2695 | lookup_global_symbol (const char *name, |
3a40aaa0 | 2696 | const struct block *block, |
21b556f4 | 2697 | const domain_enum domain) |
5f9a71c3 | 2698 | { |
f57d2163 DE |
2699 | struct symbol_cache *cache = get_symbol_cache (current_program_space); |
2700 | struct symbol *sym; | |
2701 | struct objfile *objfile; | |
19630284 | 2702 | struct global_sym_lookup_data lookup_data; |
f57d2163 DE |
2703 | struct block_symbol_cache *bsc; |
2704 | struct symbol_cache_slot *slot; | |
b2fb95e0 | 2705 | |
6a3ca067 | 2706 | objfile = lookup_objfile_from_block (block); |
f57d2163 DE |
2707 | |
2708 | /* First see if we can find the symbol in the cache. | |
2709 | This works because we use the current objfile to qualify the lookup. */ | |
2710 | sym = symbol_cache_lookup (cache, objfile, GLOBAL_BLOCK, name, domain, | |
2711 | &bsc, &slot); | |
2712 | if (sym != NULL) | |
2713 | { | |
2714 | if (sym == SYMBOL_LOOKUP_FAILED) | |
2715 | return NULL; | |
2716 | return sym; | |
2717 | } | |
2718 | ||
2719 | /* Call library-specific lookup procedure. */ | |
67ff19f7 JB |
2720 | if (objfile != NULL) |
2721 | sym = solib_global_lookup (objfile, name, domain); | |
b2fb95e0 | 2722 | |
f57d2163 DE |
2723 | /* If that didn't work go a global search (of global blocks, heh). */ |
2724 | if (sym == NULL) | |
2725 | { | |
2726 | memset (&lookup_data, 0, sizeof (lookup_data)); | |
2727 | lookup_data.name = name; | |
2728 | lookup_data.domain = domain; | |
2729 | gdbarch_iterate_over_objfiles_in_search_order | |
2730 | (objfile != NULL ? get_objfile_arch (objfile) : target_gdbarch (), | |
2731 | lookup_symbol_global_iterator_cb, &lookup_data, objfile); | |
2732 | sym = lookup_data.result; | |
2733 | } | |
6a3ca067 | 2734 | |
f57d2163 DE |
2735 | if (sym != NULL) |
2736 | symbol_cache_mark_found (bsc, slot, objfile, sym); | |
2737 | else | |
2738 | symbol_cache_mark_not_found (bsc, slot, objfile, name, domain); | |
2739 | ||
2740 | return sym; | |
5f9a71c3 DC |
2741 | } |
2742 | ||
4186eb54 KS |
2743 | int |
2744 | symbol_matches_domain (enum language symbol_language, | |
2745 | domain_enum symbol_domain, | |
2746 | domain_enum domain) | |
2747 | { | |
2748 | /* For C++ "struct foo { ... }" also defines a typedef for "foo". | |
2749 | A Java class declaration also defines a typedef for the class. | |
2750 | Similarly, any Ada type declaration implicitly defines a typedef. */ | |
2751 | if (symbol_language == language_cplus | |
2752 | || symbol_language == language_d | |
2753 | || symbol_language == language_java | |
2754 | || symbol_language == language_ada) | |
2755 | { | |
2756 | if ((domain == VAR_DOMAIN || domain == STRUCT_DOMAIN) | |
2757 | && symbol_domain == STRUCT_DOMAIN) | |
2758 | return 1; | |
2759 | } | |
2760 | /* For all other languages, strict match is required. */ | |
2761 | return (symbol_domain == domain); | |
2762 | } | |
2763 | ||
cf901d3b | 2764 | /* See symtab.h. */ |
c906108c | 2765 | |
ccefe4c4 TT |
2766 | struct type * |
2767 | lookup_transparent_type (const char *name) | |
c906108c | 2768 | { |
ccefe4c4 TT |
2769 | return current_language->la_lookup_transparent_type (name); |
2770 | } | |
9af17804 | 2771 | |
ccefe4c4 TT |
2772 | /* A helper for basic_lookup_transparent_type that interfaces with the |
2773 | "quick" symbol table functions. */ | |
357e46e7 | 2774 | |
ccefe4c4 | 2775 | static struct type * |
f88cb4b6 | 2776 | basic_lookup_transparent_type_quick (struct objfile *objfile, int block_index, |
ccefe4c4 TT |
2777 | const char *name) |
2778 | { | |
43f3e411 | 2779 | struct compunit_symtab *cust; |
346d1dfe | 2780 | const struct blockvector *bv; |
ccefe4c4 TT |
2781 | struct block *block; |
2782 | struct symbol *sym; | |
c906108c | 2783 | |
ccefe4c4 TT |
2784 | if (!objfile->sf) |
2785 | return NULL; | |
43f3e411 DE |
2786 | cust = objfile->sf->qf->lookup_symbol (objfile, block_index, name, |
2787 | STRUCT_DOMAIN); | |
2788 | if (cust == NULL) | |
ccefe4c4 | 2789 | return NULL; |
c906108c | 2790 | |
43f3e411 | 2791 | bv = COMPUNIT_BLOCKVECTOR (cust); |
f88cb4b6 | 2792 | block = BLOCKVECTOR_BLOCK (bv, block_index); |
16b2eaa1 | 2793 | sym = block_lookup_symbol (block, name, STRUCT_DOMAIN); |
ccefe4c4 | 2794 | if (!sym) |
43f3e411 | 2795 | error_in_psymtab_expansion (block_index, name, cust); |
08c23b0d | 2796 | |
ccefe4c4 TT |
2797 | if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))) |
2798 | return SYMBOL_TYPE (sym); | |
c906108c | 2799 | |
ccefe4c4 | 2800 | return NULL; |
b368761e | 2801 | } |
c906108c | 2802 | |
b368761e DC |
2803 | /* The standard implementation of lookup_transparent_type. This code |
2804 | was modeled on lookup_symbol -- the parts not relevant to looking | |
2805 | up types were just left out. In particular it's assumed here that | |
cf901d3b | 2806 | types are available in STRUCT_DOMAIN and only in file-static or |
b368761e | 2807 | global blocks. */ |
c906108c SS |
2808 | |
2809 | struct type * | |
b368761e | 2810 | basic_lookup_transparent_type (const char *name) |
c906108c | 2811 | { |
52f0bd74 | 2812 | struct symbol *sym; |
43f3e411 | 2813 | struct compunit_symtab *cust; |
346d1dfe | 2814 | const struct blockvector *bv; |
52f0bd74 AC |
2815 | struct objfile *objfile; |
2816 | struct block *block; | |
ccefe4c4 | 2817 | struct type *t; |
c906108c SS |
2818 | |
2819 | /* Now search all the global symbols. Do the symtab's first, then | |
c378eb4e | 2820 | check the psymtab's. If a psymtab indicates the existence |
c906108c SS |
2821 | of the desired name as a global, then do psymtab-to-symtab |
2822 | conversion on the fly and return the found symbol. */ | |
c5aa993b | 2823 | |
58b6ab13 | 2824 | ALL_OBJFILES (objfile) |
c5aa993b | 2825 | { |
43f3e411 | 2826 | ALL_OBJFILE_COMPUNITS (objfile, cust) |
d790cf0a | 2827 | { |
43f3e411 | 2828 | bv = COMPUNIT_BLOCKVECTOR (cust); |
d790cf0a | 2829 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); |
16b2eaa1 | 2830 | sym = block_lookup_symbol (block, name, STRUCT_DOMAIN); |
d790cf0a DE |
2831 | if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))) |
2832 | { | |
2833 | return SYMBOL_TYPE (sym); | |
2834 | } | |
2835 | } | |
c5aa993b | 2836 | } |
c906108c | 2837 | |
ccefe4c4 | 2838 | ALL_OBJFILES (objfile) |
c5aa993b | 2839 | { |
ccefe4c4 TT |
2840 | t = basic_lookup_transparent_type_quick (objfile, GLOBAL_BLOCK, name); |
2841 | if (t) | |
2842 | return t; | |
c5aa993b | 2843 | } |
c906108c SS |
2844 | |
2845 | /* Now search the static file-level symbols. | |
2846 | Not strictly correct, but more useful than an error. | |
2847 | Do the symtab's first, then | |
c378eb4e | 2848 | check the psymtab's. If a psymtab indicates the existence |
c906108c | 2849 | of the desired name as a file-level static, then do psymtab-to-symtab |
c378eb4e | 2850 | conversion on the fly and return the found symbol. */ |
c906108c | 2851 | |
54ec275a | 2852 | ALL_OBJFILES (objfile) |
c5aa993b | 2853 | { |
43f3e411 | 2854 | ALL_OBJFILE_COMPUNITS (objfile, cust) |
c5aa993b | 2855 | { |
43f3e411 | 2856 | bv = COMPUNIT_BLOCKVECTOR (cust); |
54ec275a | 2857 | block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); |
16b2eaa1 | 2858 | sym = block_lookup_symbol (block, name, STRUCT_DOMAIN); |
54ec275a KS |
2859 | if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))) |
2860 | { | |
2861 | return SYMBOL_TYPE (sym); | |
2862 | } | |
c5aa993b JM |
2863 | } |
2864 | } | |
c906108c | 2865 | |
ccefe4c4 | 2866 | ALL_OBJFILES (objfile) |
c5aa993b | 2867 | { |
ccefe4c4 TT |
2868 | t = basic_lookup_transparent_type_quick (objfile, STATIC_BLOCK, name); |
2869 | if (t) | |
2870 | return t; | |
c5aa993b | 2871 | } |
ccefe4c4 | 2872 | |
c906108c SS |
2873 | return (struct type *) 0; |
2874 | } | |
2875 | ||
4eeaa230 | 2876 | /* Iterate over the symbols named NAME, matching DOMAIN, in BLOCK. |
f8eba3c6 TT |
2877 | |
2878 | For each symbol that matches, CALLBACK is called. The symbol and | |
2879 | DATA are passed to the callback. | |
2880 | ||
2881 | If CALLBACK returns zero, the iteration ends. Otherwise, the | |
4eeaa230 | 2882 | search continues. */ |
f8eba3c6 TT |
2883 | |
2884 | void | |
2885 | iterate_over_symbols (const struct block *block, const char *name, | |
2886 | const domain_enum domain, | |
8e704927 | 2887 | symbol_found_callback_ftype *callback, |
f8eba3c6 TT |
2888 | void *data) |
2889 | { | |
4eeaa230 DE |
2890 | struct block_iterator iter; |
2891 | struct symbol *sym; | |
f8eba3c6 | 2892 | |
358d6ab3 | 2893 | ALL_BLOCK_SYMBOLS_WITH_NAME (block, name, iter, sym) |
4eeaa230 | 2894 | { |
4186eb54 KS |
2895 | if (symbol_matches_domain (SYMBOL_LANGUAGE (sym), |
2896 | SYMBOL_DOMAIN (sym), domain)) | |
f8eba3c6 | 2897 | { |
4eeaa230 DE |
2898 | if (!callback (sym, data)) |
2899 | return; | |
f8eba3c6 | 2900 | } |
f8eba3c6 TT |
2901 | } |
2902 | } | |
2903 | ||
43f3e411 DE |
2904 | /* Find the compunit symtab associated with PC and SECTION. |
2905 | This will read in debug info as necessary. */ | |
c906108c | 2906 | |
43f3e411 DE |
2907 | struct compunit_symtab * |
2908 | find_pc_sect_compunit_symtab (CORE_ADDR pc, struct obj_section *section) | |
c906108c | 2909 | { |
43f3e411 DE |
2910 | struct compunit_symtab *cust; |
2911 | struct compunit_symtab *best_cust = NULL; | |
52f0bd74 | 2912 | struct objfile *objfile; |
c906108c | 2913 | CORE_ADDR distance = 0; |
77e371c0 | 2914 | struct bound_minimal_symbol msymbol; |
8a48e967 DJ |
2915 | |
2916 | /* If we know that this is not a text address, return failure. This is | |
2917 | necessary because we loop based on the block's high and low code | |
2918 | addresses, which do not include the data ranges, and because | |
2919 | we call find_pc_sect_psymtab which has a similar restriction based | |
2920 | on the partial_symtab's texthigh and textlow. */ | |
77e371c0 TT |
2921 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); |
2922 | if (msymbol.minsym | |
2923 | && (MSYMBOL_TYPE (msymbol.minsym) == mst_data | |
2924 | || MSYMBOL_TYPE (msymbol.minsym) == mst_bss | |
2925 | || MSYMBOL_TYPE (msymbol.minsym) == mst_abs | |
2926 | || MSYMBOL_TYPE (msymbol.minsym) == mst_file_data | |
2927 | || MSYMBOL_TYPE (msymbol.minsym) == mst_file_bss)) | |
8a48e967 | 2928 | return NULL; |
c906108c SS |
2929 | |
2930 | /* Search all symtabs for the one whose file contains our address, and which | |
2931 | is the smallest of all the ones containing the address. This is designed | |
2932 | to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000 | |
2933 | and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from | |
2934 | 0x1000-0x4000, but for address 0x2345 we want to return symtab b. | |
2935 | ||
2936 | This happens for native ecoff format, where code from included files | |
c378eb4e | 2937 | gets its own symtab. The symtab for the included file should have |
c906108c SS |
2938 | been read in already via the dependency mechanism. |
2939 | It might be swifter to create several symtabs with the same name | |
2940 | like xcoff does (I'm not sure). | |
2941 | ||
2942 | It also happens for objfiles that have their functions reordered. | |
2943 | For these, the symtab we are looking for is not necessarily read in. */ | |
2944 | ||
43f3e411 | 2945 | ALL_COMPUNITS (objfile, cust) |
c5aa993b | 2946 | { |
43f3e411 DE |
2947 | struct block *b; |
2948 | const struct blockvector *bv; | |
2949 | ||
2950 | bv = COMPUNIT_BLOCKVECTOR (cust); | |
c5aa993b | 2951 | b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); |
c906108c | 2952 | |
c5aa993b | 2953 | if (BLOCK_START (b) <= pc |
c5aa993b | 2954 | && BLOCK_END (b) > pc |
c5aa993b JM |
2955 | && (distance == 0 |
2956 | || BLOCK_END (b) - BLOCK_START (b) < distance)) | |
2957 | { | |
2958 | /* For an objfile that has its functions reordered, | |
2959 | find_pc_psymtab will find the proper partial symbol table | |
2960 | and we simply return its corresponding symtab. */ | |
2961 | /* In order to better support objfiles that contain both | |
2962 | stabs and coff debugging info, we continue on if a psymtab | |
c378eb4e | 2963 | can't be found. */ |
ccefe4c4 | 2964 | if ((objfile->flags & OBJF_REORDERED) && objfile->sf) |
c5aa993b | 2965 | { |
43f3e411 | 2966 | struct compunit_symtab *result; |
433759f7 | 2967 | |
ccefe4c4 | 2968 | result |
43f3e411 DE |
2969 | = objfile->sf->qf->find_pc_sect_compunit_symtab (objfile, |
2970 | msymbol, | |
2971 | pc, section, | |
2972 | 0); | |
2973 | if (result != NULL) | |
ccefe4c4 | 2974 | return result; |
c5aa993b JM |
2975 | } |
2976 | if (section != 0) | |
2977 | { | |
8157b174 | 2978 | struct block_iterator iter; |
261397f8 | 2979 | struct symbol *sym = NULL; |
c906108c | 2980 | |
de4f826b | 2981 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c5aa993b | 2982 | { |
261397f8 | 2983 | fixup_symbol_section (sym, objfile); |
e27d198c TT |
2984 | if (matching_obj_sections (SYMBOL_OBJ_SECTION (objfile, sym), |
2985 | section)) | |
c5aa993b JM |
2986 | break; |
2987 | } | |
de4f826b | 2988 | if (sym == NULL) |
c378eb4e MS |
2989 | continue; /* No symbol in this symtab matches |
2990 | section. */ | |
c5aa993b JM |
2991 | } |
2992 | distance = BLOCK_END (b) - BLOCK_START (b); | |
43f3e411 | 2993 | best_cust = cust; |
c5aa993b JM |
2994 | } |
2995 | } | |
c906108c | 2996 | |
43f3e411 DE |
2997 | if (best_cust != NULL) |
2998 | return best_cust; | |
c906108c | 2999 | |
072cabfe DE |
3000 | /* Not found in symtabs, search the "quick" symtabs (e.g. psymtabs). */ |
3001 | ||
ccefe4c4 TT |
3002 | ALL_OBJFILES (objfile) |
3003 | { | |
43f3e411 | 3004 | struct compunit_symtab *result; |
433759f7 | 3005 | |
ccefe4c4 TT |
3006 | if (!objfile->sf) |
3007 | continue; | |
43f3e411 DE |
3008 | result = objfile->sf->qf->find_pc_sect_compunit_symtab (objfile, |
3009 | msymbol, | |
3010 | pc, section, | |
3011 | 1); | |
3012 | if (result != NULL) | |
ccefe4c4 TT |
3013 | return result; |
3014 | } | |
3015 | ||
3016 | return NULL; | |
c906108c SS |
3017 | } |
3018 | ||
43f3e411 DE |
3019 | /* Find the compunit symtab associated with PC. |
3020 | This will read in debug info as necessary. | |
3021 | Backward compatibility, no section. */ | |
c906108c | 3022 | |
43f3e411 DE |
3023 | struct compunit_symtab * |
3024 | find_pc_compunit_symtab (CORE_ADDR pc) | |
c906108c | 3025 | { |
43f3e411 | 3026 | return find_pc_sect_compunit_symtab (pc, find_pc_mapped_section (pc)); |
c906108c | 3027 | } |
c906108c | 3028 | \f |
c5aa993b | 3029 | |
7e73cedf | 3030 | /* Find the source file and line number for a given PC value and SECTION. |
c906108c SS |
3031 | Return a structure containing a symtab pointer, a line number, |
3032 | and a pc range for the entire source line. | |
3033 | The value's .pc field is NOT the specified pc. | |
3034 | NOTCURRENT nonzero means, if specified pc is on a line boundary, | |
3035 | use the line that ends there. Otherwise, in that case, the line | |
3036 | that begins there is used. */ | |
3037 | ||
3038 | /* The big complication here is that a line may start in one file, and end just | |
3039 | before the start of another file. This usually occurs when you #include | |
3040 | code in the middle of a subroutine. To properly find the end of a line's PC | |
3041 | range, we must search all symtabs associated with this compilation unit, and | |
3042 | find the one whose first PC is closer than that of the next line in this | |
3043 | symtab. */ | |
3044 | ||
3045 | /* If it's worth the effort, we could be using a binary search. */ | |
3046 | ||
3047 | struct symtab_and_line | |
714835d5 | 3048 | find_pc_sect_line (CORE_ADDR pc, struct obj_section *section, int notcurrent) |
c906108c | 3049 | { |
43f3e411 DE |
3050 | struct compunit_symtab *cust; |
3051 | struct symtab *iter_s; | |
52f0bd74 AC |
3052 | struct linetable *l; |
3053 | int len; | |
3054 | int i; | |
3055 | struct linetable_entry *item; | |
c906108c | 3056 | struct symtab_and_line val; |
346d1dfe | 3057 | const struct blockvector *bv; |
7cbd4a93 | 3058 | struct bound_minimal_symbol msymbol; |
c906108c SS |
3059 | |
3060 | /* Info on best line seen so far, and where it starts, and its file. */ | |
3061 | ||
3062 | struct linetable_entry *best = NULL; | |
3063 | CORE_ADDR best_end = 0; | |
3064 | struct symtab *best_symtab = 0; | |
3065 | ||
3066 | /* Store here the first line number | |
3067 | of a file which contains the line at the smallest pc after PC. | |
3068 | If we don't find a line whose range contains PC, | |
3069 | we will use a line one less than this, | |
3070 | with a range from the start of that file to the first line's pc. */ | |
3071 | struct linetable_entry *alt = NULL; | |
c906108c SS |
3072 | |
3073 | /* Info on best line seen in this file. */ | |
3074 | ||
3075 | struct linetable_entry *prev; | |
3076 | ||
3077 | /* If this pc is not from the current frame, | |
3078 | it is the address of the end of a call instruction. | |
3079 | Quite likely that is the start of the following statement. | |
3080 | But what we want is the statement containing the instruction. | |
3081 | Fudge the pc to make sure we get that. */ | |
3082 | ||
fe39c653 | 3083 | init_sal (&val); /* initialize to zeroes */ |
c906108c | 3084 | |
6c95b8df PA |
3085 | val.pspace = current_program_space; |
3086 | ||
b77b1eb7 JB |
3087 | /* It's tempting to assume that, if we can't find debugging info for |
3088 | any function enclosing PC, that we shouldn't search for line | |
3089 | number info, either. However, GAS can emit line number info for | |
3090 | assembly files --- very helpful when debugging hand-written | |
3091 | assembly code. In such a case, we'd have no debug info for the | |
3092 | function, but we would have line info. */ | |
648f4f79 | 3093 | |
c906108c SS |
3094 | if (notcurrent) |
3095 | pc -= 1; | |
3096 | ||
c5aa993b | 3097 | /* elz: added this because this function returned the wrong |
c906108c | 3098 | information if the pc belongs to a stub (import/export) |
c378eb4e | 3099 | to call a shlib function. This stub would be anywhere between |
9af17804 | 3100 | two functions in the target, and the line info was erroneously |
c378eb4e MS |
3101 | taken to be the one of the line before the pc. */ |
3102 | ||
c906108c | 3103 | /* RT: Further explanation: |
c5aa993b | 3104 | |
c906108c SS |
3105 | * We have stubs (trampolines) inserted between procedures. |
3106 | * | |
3107 | * Example: "shr1" exists in a shared library, and a "shr1" stub also | |
3108 | * exists in the main image. | |
3109 | * | |
3110 | * In the minimal symbol table, we have a bunch of symbols | |
c378eb4e | 3111 | * sorted by start address. The stubs are marked as "trampoline", |
c906108c SS |
3112 | * the others appear as text. E.g.: |
3113 | * | |
9af17804 | 3114 | * Minimal symbol table for main image |
c906108c SS |
3115 | * main: code for main (text symbol) |
3116 | * shr1: stub (trampoline symbol) | |
3117 | * foo: code for foo (text symbol) | |
3118 | * ... | |
3119 | * Minimal symbol table for "shr1" image: | |
3120 | * ... | |
3121 | * shr1: code for shr1 (text symbol) | |
3122 | * ... | |
3123 | * | |
3124 | * So the code below is trying to detect if we are in the stub | |
3125 | * ("shr1" stub), and if so, find the real code ("shr1" trampoline), | |
3126 | * and if found, do the symbolization from the real-code address | |
3127 | * rather than the stub address. | |
3128 | * | |
3129 | * Assumptions being made about the minimal symbol table: | |
3130 | * 1. lookup_minimal_symbol_by_pc() will return a trampoline only | |
c378eb4e | 3131 | * if we're really in the trampoline.s If we're beyond it (say |
9af17804 | 3132 | * we're in "foo" in the above example), it'll have a closer |
c906108c SS |
3133 | * symbol (the "foo" text symbol for example) and will not |
3134 | * return the trampoline. | |
3135 | * 2. lookup_minimal_symbol_text() will find a real text symbol | |
3136 | * corresponding to the trampoline, and whose address will | |
c378eb4e | 3137 | * be different than the trampoline address. I put in a sanity |
c906108c SS |
3138 | * check for the address being the same, to avoid an |
3139 | * infinite recursion. | |
3140 | */ | |
c5aa993b | 3141 | msymbol = lookup_minimal_symbol_by_pc (pc); |
7cbd4a93 TT |
3142 | if (msymbol.minsym != NULL) |
3143 | if (MSYMBOL_TYPE (msymbol.minsym) == mst_solib_trampoline) | |
c5aa993b | 3144 | { |
77e371c0 | 3145 | struct bound_minimal_symbol mfunsym |
efd66ac6 | 3146 | = lookup_minimal_symbol_text (MSYMBOL_LINKAGE_NAME (msymbol.minsym), |
77e371c0 TT |
3147 | NULL); |
3148 | ||
3149 | if (mfunsym.minsym == NULL) | |
c5aa993b JM |
3150 | /* I eliminated this warning since it is coming out |
3151 | * in the following situation: | |
3152 | * gdb shmain // test program with shared libraries | |
3153 | * (gdb) break shr1 // function in shared lib | |
3154 | * Warning: In stub for ... | |
9af17804 | 3155 | * In the above situation, the shared lib is not loaded yet, |
c5aa993b JM |
3156 | * so of course we can't find the real func/line info, |
3157 | * but the "break" still works, and the warning is annoying. | |
c378eb4e | 3158 | * So I commented out the warning. RT */ |
3e43a32a | 3159 | /* warning ("In stub for %s; unable to find real function/line info", |
c378eb4e MS |
3160 | SYMBOL_LINKAGE_NAME (msymbol)); */ |
3161 | ; | |
c5aa993b | 3162 | /* fall through */ |
77e371c0 TT |
3163 | else if (BMSYMBOL_VALUE_ADDRESS (mfunsym) |
3164 | == BMSYMBOL_VALUE_ADDRESS (msymbol)) | |
c5aa993b | 3165 | /* Avoid infinite recursion */ |
c378eb4e | 3166 | /* See above comment about why warning is commented out. */ |
3e43a32a | 3167 | /* warning ("In stub for %s; unable to find real function/line info", |
c378eb4e MS |
3168 | SYMBOL_LINKAGE_NAME (msymbol)); */ |
3169 | ; | |
c5aa993b JM |
3170 | /* fall through */ |
3171 | else | |
77e371c0 | 3172 | return find_pc_line (BMSYMBOL_VALUE_ADDRESS (mfunsym), 0); |
c5aa993b | 3173 | } |
c906108c SS |
3174 | |
3175 | ||
43f3e411 DE |
3176 | cust = find_pc_sect_compunit_symtab (pc, section); |
3177 | if (cust == NULL) | |
c906108c | 3178 | { |
c378eb4e | 3179 | /* If no symbol information, return previous pc. */ |
c906108c SS |
3180 | if (notcurrent) |
3181 | pc++; | |
3182 | val.pc = pc; | |
3183 | return val; | |
3184 | } | |
3185 | ||
43f3e411 | 3186 | bv = COMPUNIT_BLOCKVECTOR (cust); |
c906108c SS |
3187 | |
3188 | /* Look at all the symtabs that share this blockvector. | |
3189 | They all have the same apriori range, that we found was right; | |
3190 | but they have different line tables. */ | |
3191 | ||
43f3e411 | 3192 | ALL_COMPUNIT_FILETABS (cust, iter_s) |
c906108c SS |
3193 | { |
3194 | /* Find the best line in this symtab. */ | |
43f3e411 | 3195 | l = SYMTAB_LINETABLE (iter_s); |
c906108c | 3196 | if (!l) |
c5aa993b | 3197 | continue; |
c906108c SS |
3198 | len = l->nitems; |
3199 | if (len <= 0) | |
3200 | { | |
3201 | /* I think len can be zero if the symtab lacks line numbers | |
3202 | (e.g. gcc -g1). (Either that or the LINETABLE is NULL; | |
3203 | I'm not sure which, and maybe it depends on the symbol | |
3204 | reader). */ | |
3205 | continue; | |
3206 | } | |
3207 | ||
3208 | prev = NULL; | |
c378eb4e | 3209 | item = l->item; /* Get first line info. */ |
c906108c SS |
3210 | |
3211 | /* Is this file's first line closer than the first lines of other files? | |
c5aa993b | 3212 | If so, record this file, and its first line, as best alternate. */ |
c906108c | 3213 | if (item->pc > pc && (!alt || item->pc < alt->pc)) |
c656bca5 | 3214 | alt = item; |
c906108c SS |
3215 | |
3216 | for (i = 0; i < len; i++, item++) | |
3217 | { | |
3218 | /* Leave prev pointing to the linetable entry for the last line | |
3219 | that started at or before PC. */ | |
3220 | if (item->pc > pc) | |
3221 | break; | |
3222 | ||
3223 | prev = item; | |
3224 | } | |
3225 | ||
3226 | /* At this point, prev points at the line whose start addr is <= pc, and | |
c5aa993b JM |
3227 | item points at the next line. If we ran off the end of the linetable |
3228 | (pc >= start of the last line), then prev == item. If pc < start of | |
3229 | the first line, prev will not be set. */ | |
c906108c SS |
3230 | |
3231 | /* Is this file's best line closer than the best in the other files? | |
083ae935 DJ |
3232 | If so, record this file, and its best line, as best so far. Don't |
3233 | save prev if it represents the end of a function (i.e. line number | |
3234 | 0) instead of a real line. */ | |
c906108c | 3235 | |
083ae935 | 3236 | if (prev && prev->line && (!best || prev->pc > best->pc)) |
c906108c SS |
3237 | { |
3238 | best = prev; | |
43f3e411 | 3239 | best_symtab = iter_s; |
25d53da1 KB |
3240 | |
3241 | /* Discard BEST_END if it's before the PC of the current BEST. */ | |
3242 | if (best_end <= best->pc) | |
3243 | best_end = 0; | |
c906108c | 3244 | } |
25d53da1 KB |
3245 | |
3246 | /* If another line (denoted by ITEM) is in the linetable and its | |
3247 | PC is after BEST's PC, but before the current BEST_END, then | |
3248 | use ITEM's PC as the new best_end. */ | |
3249 | if (best && i < len && item->pc > best->pc | |
3250 | && (best_end == 0 || best_end > item->pc)) | |
3251 | best_end = item->pc; | |
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 | { | |
3271 | val.symtab = best_symtab; | |
3272 | val.line = best->line; | |
3273 | val.pc = best->pc; | |
3274 | if (best_end && (!alt || best_end < alt->pc)) | |
3275 | val.end = best_end; | |
3276 | else if (alt) | |
3277 | val.end = alt->pc; | |
3278 | else | |
3279 | val.end = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); | |
3280 | } | |
3281 | val.section = section; | |
3282 | return val; | |
3283 | } | |
3284 | ||
c378eb4e | 3285 | /* Backward compatibility (no section). */ |
c906108c SS |
3286 | |
3287 | struct symtab_and_line | |
fba45db2 | 3288 | find_pc_line (CORE_ADDR pc, int notcurrent) |
c906108c | 3289 | { |
714835d5 | 3290 | struct obj_section *section; |
c906108c SS |
3291 | |
3292 | section = find_pc_overlay (pc); | |
3293 | if (pc_in_unmapped_range (pc, section)) | |
3294 | pc = overlay_mapped_address (pc, section); | |
3295 | return find_pc_sect_line (pc, section, notcurrent); | |
3296 | } | |
34248c3a DE |
3297 | |
3298 | /* See symtab.h. */ | |
3299 | ||
3300 | struct symtab * | |
3301 | find_pc_line_symtab (CORE_ADDR pc) | |
3302 | { | |
3303 | struct symtab_and_line sal; | |
3304 | ||
3305 | /* This always passes zero for NOTCURRENT to find_pc_line. | |
3306 | There are currently no callers that ever pass non-zero. */ | |
3307 | sal = find_pc_line (pc, 0); | |
3308 | return sal.symtab; | |
3309 | } | |
c906108c | 3310 | \f |
c906108c SS |
3311 | /* Find line number LINE in any symtab whose name is the same as |
3312 | SYMTAB. | |
3313 | ||
3314 | If found, return the symtab that contains the linetable in which it was | |
3315 | found, set *INDEX to the index in the linetable of the best entry | |
3316 | found, and set *EXACT_MATCH nonzero if the value returned is an | |
3317 | exact match. | |
3318 | ||
3319 | If not found, return NULL. */ | |
3320 | ||
50641945 | 3321 | struct symtab * |
433759f7 MS |
3322 | find_line_symtab (struct symtab *symtab, int line, |
3323 | int *index, int *exact_match) | |
c906108c | 3324 | { |
6f43c46f | 3325 | int exact = 0; /* Initialized here to avoid a compiler warning. */ |
c906108c SS |
3326 | |
3327 | /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE | |
3328 | so far seen. */ | |
3329 | ||
3330 | int best_index; | |
3331 | struct linetable *best_linetable; | |
3332 | struct symtab *best_symtab; | |
3333 | ||
3334 | /* First try looking it up in the given symtab. */ | |
8435453b | 3335 | best_linetable = SYMTAB_LINETABLE (symtab); |
c906108c | 3336 | best_symtab = symtab; |
f8eba3c6 | 3337 | best_index = find_line_common (best_linetable, line, &exact, 0); |
c906108c SS |
3338 | if (best_index < 0 || !exact) |
3339 | { | |
3340 | /* Didn't find an exact match. So we better keep looking for | |
c5aa993b JM |
3341 | another symtab with the same name. In the case of xcoff, |
3342 | multiple csects for one source file (produced by IBM's FORTRAN | |
3343 | compiler) produce multiple symtabs (this is unavoidable | |
3344 | assuming csects can be at arbitrary places in memory and that | |
3345 | the GLOBAL_BLOCK of a symtab has a begin and end address). */ | |
c906108c SS |
3346 | |
3347 | /* BEST is the smallest linenumber > LINE so far seen, | |
c5aa993b JM |
3348 | or 0 if none has been seen so far. |
3349 | BEST_INDEX and BEST_LINETABLE identify the item for it. */ | |
c906108c SS |
3350 | int best; |
3351 | ||
3352 | struct objfile *objfile; | |
43f3e411 | 3353 | struct compunit_symtab *cu; |
c906108c SS |
3354 | struct symtab *s; |
3355 | ||
3356 | if (best_index >= 0) | |
3357 | best = best_linetable->item[best_index].line; | |
3358 | else | |
3359 | best = 0; | |
3360 | ||
ccefe4c4 | 3361 | ALL_OBJFILES (objfile) |
51432cca | 3362 | { |
ccefe4c4 | 3363 | if (objfile->sf) |
652a8996 | 3364 | objfile->sf->qf->expand_symtabs_with_fullname (objfile, |
05cba821 | 3365 | symtab_to_fullname (symtab)); |
51432cca CES |
3366 | } |
3367 | ||
43f3e411 | 3368 | ALL_FILETABS (objfile, cu, s) |
c5aa993b JM |
3369 | { |
3370 | struct linetable *l; | |
3371 | int ind; | |
c906108c | 3372 | |
3ffc00b8 | 3373 | if (FILENAME_CMP (symtab->filename, s->filename) != 0) |
c5aa993b | 3374 | continue; |
d180bcbd JK |
3375 | if (FILENAME_CMP (symtab_to_fullname (symtab), |
3376 | symtab_to_fullname (s)) != 0) | |
3ffc00b8 | 3377 | continue; |
8435453b | 3378 | l = SYMTAB_LINETABLE (s); |
f8eba3c6 | 3379 | ind = find_line_common (l, line, &exact, 0); |
c5aa993b JM |
3380 | if (ind >= 0) |
3381 | { | |
3382 | if (exact) | |
3383 | { | |
3384 | best_index = ind; | |
3385 | best_linetable = l; | |
3386 | best_symtab = s; | |
3387 | goto done; | |
3388 | } | |
3389 | if (best == 0 || l->item[ind].line < best) | |
3390 | { | |
3391 | best = l->item[ind].line; | |
3392 | best_index = ind; | |
3393 | best_linetable = l; | |
3394 | best_symtab = s; | |
3395 | } | |
3396 | } | |
3397 | } | |
c906108c | 3398 | } |
c5aa993b | 3399 | done: |
c906108c SS |
3400 | if (best_index < 0) |
3401 | return NULL; | |
3402 | ||
3403 | if (index) | |
3404 | *index = best_index; | |
3405 | if (exact_match) | |
3406 | *exact_match = exact; | |
3407 | ||
3408 | return best_symtab; | |
3409 | } | |
f8eba3c6 TT |
3410 | |
3411 | /* Given SYMTAB, returns all the PCs function in the symtab that | |
3412 | exactly match LINE. Returns NULL if there are no exact matches, | |
3413 | but updates BEST_ITEM in this case. */ | |
3414 | ||
3415 | VEC (CORE_ADDR) * | |
3416 | find_pcs_for_symtab_line (struct symtab *symtab, int line, | |
3417 | struct linetable_entry **best_item) | |
3418 | { | |
c656bca5 | 3419 | int start = 0; |
f8eba3c6 TT |
3420 | VEC (CORE_ADDR) *result = NULL; |
3421 | ||
3422 | /* First, collect all the PCs that are at this line. */ | |
3423 | while (1) | |
3424 | { | |
3425 | int was_exact; | |
3426 | int idx; | |
3427 | ||
8435453b DE |
3428 | idx = find_line_common (SYMTAB_LINETABLE (symtab), line, &was_exact, |
3429 | start); | |
f8eba3c6 TT |
3430 | if (idx < 0) |
3431 | break; | |
3432 | ||
3433 | if (!was_exact) | |
3434 | { | |
8435453b | 3435 | struct linetable_entry *item = &SYMTAB_LINETABLE (symtab)->item[idx]; |
f8eba3c6 TT |
3436 | |
3437 | if (*best_item == NULL || item->line < (*best_item)->line) | |
3438 | *best_item = item; | |
3439 | ||
3440 | break; | |
3441 | } | |
3442 | ||
8435453b DE |
3443 | VEC_safe_push (CORE_ADDR, result, |
3444 | SYMTAB_LINETABLE (symtab)->item[idx].pc); | |
f8eba3c6 TT |
3445 | start = idx + 1; |
3446 | } | |
3447 | ||
3448 | return result; | |
3449 | } | |
3450 | ||
c906108c SS |
3451 | \f |
3452 | /* Set the PC value for a given source file and line number and return true. | |
3453 | Returns zero for invalid line number (and sets the PC to 0). | |
3454 | The source file is specified with a struct symtab. */ | |
3455 | ||
3456 | int | |
fba45db2 | 3457 | find_line_pc (struct symtab *symtab, int line, CORE_ADDR *pc) |
c906108c SS |
3458 | { |
3459 | struct linetable *l; | |
3460 | int ind; | |
3461 | ||
3462 | *pc = 0; | |
3463 | if (symtab == 0) | |
3464 | return 0; | |
3465 | ||
3466 | symtab = find_line_symtab (symtab, line, &ind, NULL); | |
3467 | if (symtab != NULL) | |
3468 | { | |
8435453b | 3469 | l = SYMTAB_LINETABLE (symtab); |
c906108c SS |
3470 | *pc = l->item[ind].pc; |
3471 | return 1; | |
3472 | } | |
3473 | else | |
3474 | return 0; | |
3475 | } | |
3476 | ||
3477 | /* Find the range of pc values in a line. | |
3478 | Store the starting pc of the line into *STARTPTR | |
3479 | and the ending pc (start of next line) into *ENDPTR. | |
3480 | Returns 1 to indicate success. | |
3481 | Returns 0 if could not find the specified line. */ | |
3482 | ||
3483 | int | |
fba45db2 KB |
3484 | find_line_pc_range (struct symtab_and_line sal, CORE_ADDR *startptr, |
3485 | CORE_ADDR *endptr) | |
c906108c SS |
3486 | { |
3487 | CORE_ADDR startaddr; | |
3488 | struct symtab_and_line found_sal; | |
3489 | ||
3490 | startaddr = sal.pc; | |
c5aa993b | 3491 | if (startaddr == 0 && !find_line_pc (sal.symtab, sal.line, &startaddr)) |
c906108c SS |
3492 | return 0; |
3493 | ||
3494 | /* This whole function is based on address. For example, if line 10 has | |
3495 | two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then | |
3496 | "info line *0x123" should say the line goes from 0x100 to 0x200 | |
3497 | and "info line *0x355" should say the line goes from 0x300 to 0x400. | |
3498 | This also insures that we never give a range like "starts at 0x134 | |
3499 | and ends at 0x12c". */ | |
3500 | ||
3501 | found_sal = find_pc_sect_line (startaddr, sal.section, 0); | |
3502 | if (found_sal.line != sal.line) | |
3503 | { | |
3504 | /* The specified line (sal) has zero bytes. */ | |
3505 | *startptr = found_sal.pc; | |
3506 | *endptr = found_sal.pc; | |
3507 | } | |
3508 | else | |
3509 | { | |
3510 | *startptr = found_sal.pc; | |
3511 | *endptr = found_sal.end; | |
3512 | } | |
3513 | return 1; | |
3514 | } | |
3515 | ||
3516 | /* Given a line table and a line number, return the index into the line | |
3517 | table for the pc of the nearest line whose number is >= the specified one. | |
3518 | Return -1 if none is found. The value is >= 0 if it is an index. | |
f8eba3c6 | 3519 | START is the index at which to start searching the line table. |
c906108c SS |
3520 | |
3521 | Set *EXACT_MATCH nonzero if the value returned is an exact match. */ | |
3522 | ||
3523 | static int | |
aa1ee363 | 3524 | find_line_common (struct linetable *l, int lineno, |
f8eba3c6 | 3525 | int *exact_match, int start) |
c906108c | 3526 | { |
52f0bd74 AC |
3527 | int i; |
3528 | int len; | |
c906108c SS |
3529 | |
3530 | /* BEST is the smallest linenumber > LINENO so far seen, | |
3531 | or 0 if none has been seen so far. | |
3532 | BEST_INDEX identifies the item for it. */ | |
3533 | ||
3534 | int best_index = -1; | |
3535 | int best = 0; | |
3536 | ||
b7589f7d DJ |
3537 | *exact_match = 0; |
3538 | ||
c906108c SS |
3539 | if (lineno <= 0) |
3540 | return -1; | |
3541 | if (l == 0) | |
3542 | return -1; | |
3543 | ||
3544 | len = l->nitems; | |
f8eba3c6 | 3545 | for (i = start; i < len; i++) |
c906108c | 3546 | { |
aa1ee363 | 3547 | struct linetable_entry *item = &(l->item[i]); |
c906108c SS |
3548 | |
3549 | if (item->line == lineno) | |
3550 | { | |
3551 | /* Return the first (lowest address) entry which matches. */ | |
3552 | *exact_match = 1; | |
3553 | return i; | |
3554 | } | |
3555 | ||
3556 | if (item->line > lineno && (best == 0 || item->line < best)) | |
3557 | { | |
3558 | best = item->line; | |
3559 | best_index = i; | |
3560 | } | |
3561 | } | |
3562 | ||
3563 | /* If we got here, we didn't get an exact match. */ | |
c906108c SS |
3564 | return best_index; |
3565 | } | |
3566 | ||
3567 | int | |
fba45db2 | 3568 | find_pc_line_pc_range (CORE_ADDR pc, CORE_ADDR *startptr, CORE_ADDR *endptr) |
c906108c SS |
3569 | { |
3570 | struct symtab_and_line sal; | |
433759f7 | 3571 | |
c906108c SS |
3572 | sal = find_pc_line (pc, 0); |
3573 | *startptr = sal.pc; | |
3574 | *endptr = sal.end; | |
3575 | return sal.symtab != 0; | |
3576 | } | |
3577 | ||
aab2f208 DE |
3578 | /* Given a function symbol SYM, find the symtab and line for the start |
3579 | of the function. | |
3580 | If the argument FUNFIRSTLINE is nonzero, we want the first line | |
3581 | of real code inside the function. */ | |
3582 | ||
3583 | struct symtab_and_line | |
3584 | find_function_start_sal (struct symbol *sym, int funfirstline) | |
3585 | { | |
3586 | struct symtab_and_line sal; | |
08be3fe3 | 3587 | struct obj_section *section; |
aab2f208 DE |
3588 | |
3589 | fixup_symbol_section (sym, NULL); | |
08be3fe3 DE |
3590 | section = SYMBOL_OBJ_SECTION (symbol_objfile (sym), sym); |
3591 | sal = find_pc_sect_line (BLOCK_START (SYMBOL_BLOCK_VALUE (sym)), section, 0); | |
aab2f208 DE |
3592 | |
3593 | /* We always should have a line for the function start address. | |
3594 | If we don't, something is odd. Create a plain SAL refering | |
3595 | just the PC and hope that skip_prologue_sal (if requested) | |
3596 | can find a line number for after the prologue. */ | |
3597 | if (sal.pc < BLOCK_START (SYMBOL_BLOCK_VALUE (sym))) | |
3598 | { | |
3599 | init_sal (&sal); | |
3600 | sal.pspace = current_program_space; | |
3601 | sal.pc = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); | |
08be3fe3 | 3602 | sal.section = section; |
aab2f208 DE |
3603 | } |
3604 | ||
3605 | if (funfirstline) | |
3606 | skip_prologue_sal (&sal); | |
3607 | ||
3608 | return sal; | |
3609 | } | |
3610 | ||
8c7a1ee8 EZ |
3611 | /* Given a function start address FUNC_ADDR and SYMTAB, find the first |
3612 | address for that function that has an entry in SYMTAB's line info | |
3613 | table. If such an entry cannot be found, return FUNC_ADDR | |
3614 | unaltered. */ | |
eca864fe | 3615 | |
70221824 | 3616 | static CORE_ADDR |
8c7a1ee8 EZ |
3617 | skip_prologue_using_lineinfo (CORE_ADDR func_addr, struct symtab *symtab) |
3618 | { | |
3619 | CORE_ADDR func_start, func_end; | |
3620 | struct linetable *l; | |
952a6d41 | 3621 | int i; |
8c7a1ee8 EZ |
3622 | |
3623 | /* Give up if this symbol has no lineinfo table. */ | |
8435453b | 3624 | l = SYMTAB_LINETABLE (symtab); |
8c7a1ee8 EZ |
3625 | if (l == NULL) |
3626 | return func_addr; | |
3627 | ||
3628 | /* Get the range for the function's PC values, or give up if we | |
3629 | cannot, for some reason. */ | |
3630 | if (!find_pc_partial_function (func_addr, NULL, &func_start, &func_end)) | |
3631 | return func_addr; | |
3632 | ||
3633 | /* Linetable entries are ordered by PC values, see the commentary in | |
3634 | symtab.h where `struct linetable' is defined. Thus, the first | |
3635 | entry whose PC is in the range [FUNC_START..FUNC_END[ is the | |
3636 | address we are looking for. */ | |
3637 | for (i = 0; i < l->nitems; i++) | |
3638 | { | |
3639 | struct linetable_entry *item = &(l->item[i]); | |
3640 | ||
3641 | /* Don't use line numbers of zero, they mark special entries in | |
3642 | the table. See the commentary on symtab.h before the | |
3643 | definition of struct linetable. */ | |
3644 | if (item->line > 0 && func_start <= item->pc && item->pc < func_end) | |
3645 | return item->pc; | |
3646 | } | |
3647 | ||
3648 | return func_addr; | |
3649 | } | |
3650 | ||
059acae7 UW |
3651 | /* Adjust SAL to the first instruction past the function prologue. |
3652 | If the PC was explicitly specified, the SAL is not changed. | |
3653 | If the line number was explicitly specified, at most the SAL's PC | |
3654 | is updated. If SAL is already past the prologue, then do nothing. */ | |
eca864fe | 3655 | |
059acae7 UW |
3656 | void |
3657 | skip_prologue_sal (struct symtab_and_line *sal) | |
3658 | { | |
3659 | struct symbol *sym; | |
3660 | struct symtab_and_line start_sal; | |
3661 | struct cleanup *old_chain; | |
8be455d7 | 3662 | CORE_ADDR pc, saved_pc; |
059acae7 UW |
3663 | struct obj_section *section; |
3664 | const char *name; | |
3665 | struct objfile *objfile; | |
3666 | struct gdbarch *gdbarch; | |
3977b71f | 3667 | const struct block *b, *function_block; |
8be455d7 | 3668 | int force_skip, skip; |
c906108c | 3669 | |
a4b411d6 | 3670 | /* Do not change the SAL if PC was specified explicitly. */ |
059acae7 UW |
3671 | if (sal->explicit_pc) |
3672 | return; | |
6c95b8df PA |
3673 | |
3674 | old_chain = save_current_space_and_thread (); | |
059acae7 | 3675 | switch_to_program_space_and_thread (sal->pspace); |
6c95b8df | 3676 | |
059acae7 UW |
3677 | sym = find_pc_sect_function (sal->pc, sal->section); |
3678 | if (sym != NULL) | |
bccdca4a | 3679 | { |
059acae7 UW |
3680 | fixup_symbol_section (sym, NULL); |
3681 | ||
08be3fe3 | 3682 | objfile = symbol_objfile (sym); |
059acae7 | 3683 | pc = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); |
08be3fe3 | 3684 | section = SYMBOL_OBJ_SECTION (objfile, sym); |
059acae7 | 3685 | name = SYMBOL_LINKAGE_NAME (sym); |
c906108c | 3686 | } |
059acae7 UW |
3687 | else |
3688 | { | |
7c7b6655 TT |
3689 | struct bound_minimal_symbol msymbol |
3690 | = lookup_minimal_symbol_by_pc_section (sal->pc, sal->section); | |
433759f7 | 3691 | |
7c7b6655 | 3692 | if (msymbol.minsym == NULL) |
059acae7 UW |
3693 | { |
3694 | do_cleanups (old_chain); | |
3695 | return; | |
3696 | } | |
3697 | ||
7c7b6655 | 3698 | objfile = msymbol.objfile; |
77e371c0 | 3699 | pc = BMSYMBOL_VALUE_ADDRESS (msymbol); |
efd66ac6 TT |
3700 | section = MSYMBOL_OBJ_SECTION (objfile, msymbol.minsym); |
3701 | name = MSYMBOL_LINKAGE_NAME (msymbol.minsym); | |
059acae7 UW |
3702 | } |
3703 | ||
3704 | gdbarch = get_objfile_arch (objfile); | |
3705 | ||
8be455d7 JK |
3706 | /* Process the prologue in two passes. In the first pass try to skip the |
3707 | prologue (SKIP is true) and verify there is a real need for it (indicated | |
3708 | by FORCE_SKIP). If no such reason was found run a second pass where the | |
3709 | prologue is not skipped (SKIP is false). */ | |
059acae7 | 3710 | |
8be455d7 JK |
3711 | skip = 1; |
3712 | force_skip = 1; | |
059acae7 | 3713 | |
8be455d7 JK |
3714 | /* Be conservative - allow direct PC (without skipping prologue) only if we |
3715 | have proven the CU (Compilation Unit) supports it. sal->SYMTAB does not | |
3716 | have to be set by the caller so we use SYM instead. */ | |
08be3fe3 DE |
3717 | if (sym != NULL |
3718 | && COMPUNIT_LOCATIONS_VALID (SYMTAB_COMPUNIT (symbol_symtab (sym)))) | |
8be455d7 | 3719 | force_skip = 0; |
059acae7 | 3720 | |
8be455d7 JK |
3721 | saved_pc = pc; |
3722 | do | |
c906108c | 3723 | { |
8be455d7 | 3724 | pc = saved_pc; |
4309257c | 3725 | |
8be455d7 JK |
3726 | /* If the function is in an unmapped overlay, use its unmapped LMA address, |
3727 | so that gdbarch_skip_prologue has something unique to work on. */ | |
3728 | if (section_is_overlay (section) && !section_is_mapped (section)) | |
3729 | pc = overlay_unmapped_address (pc, section); | |
3730 | ||
3731 | /* Skip "first line" of function (which is actually its prologue). */ | |
3732 | pc += gdbarch_deprecated_function_start_offset (gdbarch); | |
591a12a1 UW |
3733 | if (gdbarch_skip_entrypoint_p (gdbarch)) |
3734 | pc = gdbarch_skip_entrypoint (gdbarch, pc); | |
8be455d7 JK |
3735 | if (skip) |
3736 | pc = gdbarch_skip_prologue (gdbarch, pc); | |
3737 | ||
3738 | /* For overlays, map pc back into its mapped VMA range. */ | |
3739 | pc = overlay_mapped_address (pc, section); | |
3740 | ||
3741 | /* Calculate line number. */ | |
059acae7 | 3742 | start_sal = find_pc_sect_line (pc, section, 0); |
8be455d7 JK |
3743 | |
3744 | /* Check if gdbarch_skip_prologue left us in mid-line, and the next | |
3745 | line is still part of the same function. */ | |
3746 | if (skip && start_sal.pc != pc | |
b1d96efd JK |
3747 | && (sym ? (BLOCK_START (SYMBOL_BLOCK_VALUE (sym)) <= start_sal.end |
3748 | && start_sal.end < BLOCK_END (SYMBOL_BLOCK_VALUE (sym))) | |
7cbd4a93 TT |
3749 | : (lookup_minimal_symbol_by_pc_section (start_sal.end, section).minsym |
3750 | == lookup_minimal_symbol_by_pc_section (pc, section).minsym))) | |
8be455d7 JK |
3751 | { |
3752 | /* First pc of next line */ | |
3753 | pc = start_sal.end; | |
3754 | /* Recalculate the line number (might not be N+1). */ | |
3755 | start_sal = find_pc_sect_line (pc, section, 0); | |
3756 | } | |
3757 | ||
3758 | /* On targets with executable formats that don't have a concept of | |
3759 | constructors (ELF with .init has, PE doesn't), gcc emits a call | |
3760 | to `__main' in `main' between the prologue and before user | |
3761 | code. */ | |
3762 | if (gdbarch_skip_main_prologue_p (gdbarch) | |
7ccffd7c | 3763 | && name && strcmp_iw (name, "main") == 0) |
8be455d7 JK |
3764 | { |
3765 | pc = gdbarch_skip_main_prologue (gdbarch, pc); | |
3766 | /* Recalculate the line number (might not be N+1). */ | |
3767 | start_sal = find_pc_sect_line (pc, section, 0); | |
3768 | force_skip = 1; | |
3769 | } | |
4309257c | 3770 | } |
8be455d7 | 3771 | while (!force_skip && skip--); |
4309257c | 3772 | |
8c7a1ee8 EZ |
3773 | /* If we still don't have a valid source line, try to find the first |
3774 | PC in the lineinfo table that belongs to the same function. This | |
3775 | happens with COFF debug info, which does not seem to have an | |
3776 | entry in lineinfo table for the code after the prologue which has | |
3777 | no direct relation to source. For example, this was found to be | |
3778 | the case with the DJGPP target using "gcc -gcoff" when the | |
3779 | compiler inserted code after the prologue to make sure the stack | |
3780 | is aligned. */ | |
8be455d7 | 3781 | if (!force_skip && sym && start_sal.symtab == NULL) |
8c7a1ee8 | 3782 | { |
08be3fe3 | 3783 | pc = skip_prologue_using_lineinfo (pc, symbol_symtab (sym)); |
8c7a1ee8 | 3784 | /* Recalculate the line number. */ |
059acae7 | 3785 | start_sal = find_pc_sect_line (pc, section, 0); |
8c7a1ee8 EZ |
3786 | } |
3787 | ||
059acae7 UW |
3788 | do_cleanups (old_chain); |
3789 | ||
3790 | /* If we're already past the prologue, leave SAL unchanged. Otherwise | |
3791 | forward SAL to the end of the prologue. */ | |
3792 | if (sal->pc >= pc) | |
3793 | return; | |
3794 | ||
3795 | sal->pc = pc; | |
3796 | sal->section = section; | |
3797 | ||
3798 | /* Unless the explicit_line flag was set, update the SAL line | |
3799 | and symtab to correspond to the modified PC location. */ | |
3800 | if (sal->explicit_line) | |
3801 | return; | |
3802 | ||
3803 | sal->symtab = start_sal.symtab; | |
3804 | sal->line = start_sal.line; | |
3805 | sal->end = start_sal.end; | |
c906108c | 3806 | |
edb3359d DJ |
3807 | /* Check if we are now inside an inlined function. If we can, |
3808 | use the call site of the function instead. */ | |
059acae7 | 3809 | b = block_for_pc_sect (sal->pc, sal->section); |
edb3359d DJ |
3810 | function_block = NULL; |
3811 | while (b != NULL) | |
3812 | { | |
3813 | if (BLOCK_FUNCTION (b) != NULL && block_inlined_p (b)) | |
3814 | function_block = b; | |
3815 | else if (BLOCK_FUNCTION (b) != NULL) | |
3816 | break; | |
3817 | b = BLOCK_SUPERBLOCK (b); | |
3818 | } | |
3819 | if (function_block != NULL | |
3820 | && SYMBOL_LINE (BLOCK_FUNCTION (function_block)) != 0) | |
3821 | { | |
059acae7 | 3822 | sal->line = SYMBOL_LINE (BLOCK_FUNCTION (function_block)); |
08be3fe3 | 3823 | sal->symtab = symbol_symtab (BLOCK_FUNCTION (function_block)); |
edb3359d | 3824 | } |
c906108c | 3825 | } |
50641945 | 3826 | |
f1f58506 DE |
3827 | /* Given PC at the function's start address, attempt to find the |
3828 | prologue end using SAL information. Return zero if the skip fails. | |
3829 | ||
3830 | A non-optimized prologue traditionally has one SAL for the function | |
3831 | and a second for the function body. A single line function has | |
3832 | them both pointing at the same line. | |
3833 | ||
3834 | An optimized prologue is similar but the prologue may contain | |
3835 | instructions (SALs) from the instruction body. Need to skip those | |
3836 | while not getting into the function body. | |
3837 | ||
3838 | The functions end point and an increasing SAL line are used as | |
3839 | indicators of the prologue's endpoint. | |
3840 | ||
3841 | This code is based on the function refine_prologue_limit | |
3842 | (found in ia64). */ | |
3843 | ||
3844 | CORE_ADDR | |
3845 | skip_prologue_using_sal (struct gdbarch *gdbarch, CORE_ADDR func_addr) | |
3846 | { | |
3847 | struct symtab_and_line prologue_sal; | |
3848 | CORE_ADDR start_pc; | |
3849 | CORE_ADDR end_pc; | |
3850 | const struct block *bl; | |
3851 | ||
3852 | /* Get an initial range for the function. */ | |
3853 | find_pc_partial_function (func_addr, NULL, &start_pc, &end_pc); | |
3854 | start_pc += gdbarch_deprecated_function_start_offset (gdbarch); | |
3855 | ||
3856 | prologue_sal = find_pc_line (start_pc, 0); | |
3857 | if (prologue_sal.line != 0) | |
3858 | { | |
3859 | /* For languages other than assembly, treat two consecutive line | |
3860 | entries at the same address as a zero-instruction prologue. | |
3861 | The GNU assembler emits separate line notes for each instruction | |
3862 | in a multi-instruction macro, but compilers generally will not | |
3863 | do this. */ | |
3864 | if (prologue_sal.symtab->language != language_asm) | |
3865 | { | |
8435453b | 3866 | struct linetable *linetable = SYMTAB_LINETABLE (prologue_sal.symtab); |
f1f58506 DE |
3867 | int idx = 0; |
3868 | ||
3869 | /* Skip any earlier lines, and any end-of-sequence marker | |
3870 | from a previous function. */ | |
3871 | while (linetable->item[idx].pc != prologue_sal.pc | |
3872 | || linetable->item[idx].line == 0) | |
3873 | idx++; | |
3874 | ||
3875 | if (idx+1 < linetable->nitems | |
3876 | && linetable->item[idx+1].line != 0 | |
3877 | && linetable->item[idx+1].pc == start_pc) | |
3878 | return start_pc; | |
3879 | } | |
3880 | ||
3881 | /* If there is only one sal that covers the entire function, | |
3882 | then it is probably a single line function, like | |
3883 | "foo(){}". */ | |
3884 | if (prologue_sal.end >= end_pc) | |
3885 | return 0; | |
3886 | ||
3887 | while (prologue_sal.end < end_pc) | |
3888 | { | |
3889 | struct symtab_and_line sal; | |
3890 | ||
3891 | sal = find_pc_line (prologue_sal.end, 0); | |
3892 | if (sal.line == 0) | |
3893 | break; | |
3894 | /* Assume that a consecutive SAL for the same (or larger) | |
3895 | line mark the prologue -> body transition. */ | |
3896 | if (sal.line >= prologue_sal.line) | |
3897 | break; | |
3898 | /* Likewise if we are in a different symtab altogether | |
3899 | (e.g. within a file included via #include). */ | |
3900 | if (sal.symtab != prologue_sal.symtab) | |
3901 | break; | |
3902 | ||
3903 | /* The line number is smaller. Check that it's from the | |
3904 | same function, not something inlined. If it's inlined, | |
3905 | then there is no point comparing the line numbers. */ | |
3906 | bl = block_for_pc (prologue_sal.end); | |
3907 | while (bl) | |
3908 | { | |
3909 | if (block_inlined_p (bl)) | |
3910 | break; | |
3911 | if (BLOCK_FUNCTION (bl)) | |
3912 | { | |
3913 | bl = NULL; | |
3914 | break; | |
3915 | } | |
3916 | bl = BLOCK_SUPERBLOCK (bl); | |
3917 | } | |
3918 | if (bl != NULL) | |
3919 | break; | |
3920 | ||
3921 | /* The case in which compiler's optimizer/scheduler has | |
3922 | moved instructions into the prologue. We look ahead in | |
3923 | the function looking for address ranges whose | |
3924 | corresponding line number is less the first one that we | |
3925 | found for the function. This is more conservative then | |
3926 | refine_prologue_limit which scans a large number of SALs | |
3927 | looking for any in the prologue. */ | |
3928 | prologue_sal = sal; | |
3929 | } | |
3930 | } | |
3931 | ||
3932 | if (prologue_sal.end < end_pc) | |
3933 | /* Return the end of this line, or zero if we could not find a | |
3934 | line. */ | |
3935 | return prologue_sal.end; | |
3936 | else | |
3937 | /* Don't return END_PC, which is past the end of the function. */ | |
3938 | return prologue_sal.pc; | |
3939 | } | |
3940 | \f | |
c906108c SS |
3941 | /* If P is of the form "operator[ \t]+..." where `...' is |
3942 | some legitimate operator text, return a pointer to the | |
3943 | beginning of the substring of the operator text. | |
3944 | Otherwise, return "". */ | |
eca864fe | 3945 | |
96142726 TT |
3946 | static const char * |
3947 | operator_chars (const char *p, const char **end) | |
c906108c SS |
3948 | { |
3949 | *end = ""; | |
3950 | if (strncmp (p, "operator", 8)) | |
3951 | return *end; | |
3952 | p += 8; | |
3953 | ||
3954 | /* Don't get faked out by `operator' being part of a longer | |
3955 | identifier. */ | |
c5aa993b | 3956 | if (isalpha (*p) || *p == '_' || *p == '$' || *p == '\0') |
c906108c SS |
3957 | return *end; |
3958 | ||
3959 | /* Allow some whitespace between `operator' and the operator symbol. */ | |
3960 | while (*p == ' ' || *p == '\t') | |
3961 | p++; | |
3962 | ||
c378eb4e | 3963 | /* Recognize 'operator TYPENAME'. */ |
c906108c | 3964 | |
c5aa993b | 3965 | if (isalpha (*p) || *p == '_' || *p == '$') |
c906108c | 3966 | { |
96142726 | 3967 | const char *q = p + 1; |
433759f7 | 3968 | |
c5aa993b | 3969 | while (isalnum (*q) || *q == '_' || *q == '$') |
c906108c SS |
3970 | q++; |
3971 | *end = q; | |
3972 | return p; | |
3973 | } | |
3974 | ||
53e8ad3d MS |
3975 | while (*p) |
3976 | switch (*p) | |
3977 | { | |
3978 | case '\\': /* regexp quoting */ | |
3979 | if (p[1] == '*') | |
3980 | { | |
3e43a32a | 3981 | if (p[2] == '=') /* 'operator\*=' */ |
53e8ad3d MS |
3982 | *end = p + 3; |
3983 | else /* 'operator\*' */ | |
3984 | *end = p + 2; | |
3985 | return p; | |
3986 | } | |
3987 | else if (p[1] == '[') | |
3988 | { | |
3989 | if (p[2] == ']') | |
3e43a32a MS |
3990 | error (_("mismatched quoting on brackets, " |
3991 | "try 'operator\\[\\]'")); | |
53e8ad3d MS |
3992 | else if (p[2] == '\\' && p[3] == ']') |
3993 | { | |
3994 | *end = p + 4; /* 'operator\[\]' */ | |
3995 | return p; | |
3996 | } | |
3997 | else | |
8a3fe4f8 | 3998 | error (_("nothing is allowed between '[' and ']'")); |
53e8ad3d | 3999 | } |
9af17804 | 4000 | else |
53e8ad3d | 4001 | { |
c378eb4e | 4002 | /* Gratuitous qoute: skip it and move on. */ |
53e8ad3d MS |
4003 | p++; |
4004 | continue; | |
4005 | } | |
4006 | break; | |
4007 | case '!': | |
4008 | case '=': | |
4009 | case '*': | |
4010 | case '/': | |
4011 | case '%': | |
4012 | case '^': | |
4013 | if (p[1] == '=') | |
4014 | *end = p + 2; | |
4015 | else | |
4016 | *end = p + 1; | |
4017 | return p; | |
4018 | case '<': | |
4019 | case '>': | |
4020 | case '+': | |
4021 | case '-': | |
4022 | case '&': | |
4023 | case '|': | |
4024 | if (p[0] == '-' && p[1] == '>') | |
4025 | { | |
c378eb4e | 4026 | /* Struct pointer member operator 'operator->'. */ |
53e8ad3d MS |
4027 | if (p[2] == '*') |
4028 | { | |
4029 | *end = p + 3; /* 'operator->*' */ | |
4030 | return p; | |
4031 | } | |
4032 | else if (p[2] == '\\') | |
4033 | { | |
4034 | *end = p + 4; /* Hopefully 'operator->\*' */ | |
4035 | return p; | |
4036 | } | |
4037 | else | |
4038 | { | |
4039 | *end = p + 2; /* 'operator->' */ | |
4040 | return p; | |
4041 | } | |
4042 | } | |
4043 | if (p[1] == '=' || p[1] == p[0]) | |
4044 | *end = p + 2; | |
4045 | else | |
4046 | *end = p + 1; | |
4047 | return p; | |
4048 | case '~': | |
4049 | case ',': | |
c5aa993b | 4050 | *end = p + 1; |
53e8ad3d MS |
4051 | return p; |
4052 | case '(': | |
4053 | if (p[1] != ')') | |
3e43a32a MS |
4054 | error (_("`operator ()' must be specified " |
4055 | "without whitespace in `()'")); | |
c5aa993b | 4056 | *end = p + 2; |
53e8ad3d MS |
4057 | return p; |
4058 | case '?': | |
4059 | if (p[1] != ':') | |
3e43a32a MS |
4060 | error (_("`operator ?:' must be specified " |
4061 | "without whitespace in `?:'")); | |
53e8ad3d MS |
4062 | *end = p + 2; |
4063 | return p; | |
4064 | case '[': | |
4065 | if (p[1] != ']') | |
3e43a32a MS |
4066 | error (_("`operator []' must be specified " |
4067 | "without whitespace in `[]'")); | |
53e8ad3d MS |
4068 | *end = p + 2; |
4069 | return p; | |
4070 | default: | |
8a3fe4f8 | 4071 | error (_("`operator %s' not supported"), p); |
53e8ad3d MS |
4072 | break; |
4073 | } | |
4074 | ||
c906108c SS |
4075 | *end = ""; |
4076 | return *end; | |
4077 | } | |
c906108c | 4078 | \f |
c5aa993b | 4079 | |
9fdc877b DE |
4080 | /* Cache to watch for file names already seen by filename_seen. */ |
4081 | ||
4082 | struct filename_seen_cache | |
4083 | { | |
4084 | /* Table of files seen so far. */ | |
2908cac6 DE |
4085 | htab_t tab; |
4086 | /* Initial size of the table. It automagically grows from here. */ | |
9fdc877b | 4087 | #define INITIAL_FILENAME_SEEN_CACHE_SIZE 100 |
9fdc877b DE |
4088 | }; |
4089 | ||
4090 | /* filename_seen_cache constructor. */ | |
4091 | ||
4092 | static struct filename_seen_cache * | |
4093 | create_filename_seen_cache (void) | |
4094 | { | |
4095 | struct filename_seen_cache *cache; | |
4096 | ||
4097 | cache = XNEW (struct filename_seen_cache); | |
2908cac6 DE |
4098 | cache->tab = htab_create_alloc (INITIAL_FILENAME_SEEN_CACHE_SIZE, |
4099 | filename_hash, filename_eq, | |
4100 | NULL, xcalloc, xfree); | |
9fdc877b DE |
4101 | |
4102 | return cache; | |
4103 | } | |
4104 | ||
4105 | /* Empty the cache, but do not delete it. */ | |
4106 | ||
4107 | static void | |
2908cac6 | 4108 | clear_filename_seen_cache (struct filename_seen_cache *cache) |
9fdc877b | 4109 | { |
2908cac6 | 4110 | htab_empty (cache->tab); |
9fdc877b DE |
4111 | } |
4112 | ||
4113 | /* filename_seen_cache destructor. | |
4114 | This takes a void * argument as it is generally used as a cleanup. */ | |
4115 | ||
4116 | static void | |
4117 | delete_filename_seen_cache (void *ptr) | |
4118 | { | |
4119 | struct filename_seen_cache *cache = ptr; | |
4120 | ||
2908cac6 | 4121 | htab_delete (cache->tab); |
9fdc877b DE |
4122 | xfree (cache); |
4123 | } | |
4124 | ||
a2b6eff5 | 4125 | /* If FILE is not already in the table of files in CACHE, return zero; |
c94fdfd0 | 4126 | otherwise return non-zero. Optionally add FILE to the table if ADD |
2908cac6 DE |
4127 | is non-zero. |
4128 | ||
4129 | NOTE: We don't manage space for FILE, we assume FILE lives as long | |
4130 | as the caller needs. */ | |
eca864fe | 4131 | |
c94fdfd0 | 4132 | static int |
9fdc877b | 4133 | filename_seen (struct filename_seen_cache *cache, const char *file, int add) |
c906108c | 4134 | { |
2908cac6 | 4135 | void **slot; |
c906108c | 4136 | |
c94fdfd0 | 4137 | /* Is FILE in tab? */ |
2908cac6 DE |
4138 | slot = htab_find_slot (cache->tab, file, add ? INSERT : NO_INSERT); |
4139 | if (*slot != NULL) | |
4140 | return 1; | |
c94fdfd0 EZ |
4141 | |
4142 | /* No; maybe add it to tab. */ | |
4143 | if (add) | |
2908cac6 | 4144 | *slot = (char *) file; |
c906108c | 4145 | |
c94fdfd0 EZ |
4146 | return 0; |
4147 | } | |
4148 | ||
9fdc877b DE |
4149 | /* Data structure to maintain printing state for output_source_filename. */ |
4150 | ||
4151 | struct output_source_filename_data | |
4152 | { | |
4153 | /* Cache of what we've seen so far. */ | |
4154 | struct filename_seen_cache *filename_seen_cache; | |
4155 | ||
4156 | /* Flag of whether we're printing the first one. */ | |
4157 | int first; | |
4158 | }; | |
4159 | ||
c94fdfd0 | 4160 | /* Slave routine for sources_info. Force line breaks at ,'s. |
9fdc877b DE |
4161 | NAME is the name to print. |
4162 | DATA contains the state for printing and watching for duplicates. */ | |
eca864fe | 4163 | |
c94fdfd0 | 4164 | static void |
9fdc877b DE |
4165 | output_source_filename (const char *name, |
4166 | struct output_source_filename_data *data) | |
c94fdfd0 EZ |
4167 | { |
4168 | /* Since a single source file can result in several partial symbol | |
4169 | tables, we need to avoid printing it more than once. Note: if | |
4170 | some of the psymtabs are read in and some are not, it gets | |
4171 | printed both under "Source files for which symbols have been | |
4172 | read" and "Source files for which symbols will be read in on | |
4173 | demand". I consider this a reasonable way to deal with the | |
4174 | situation. I'm not sure whether this can also happen for | |
4175 | symtabs; it doesn't hurt to check. */ | |
4176 | ||
4177 | /* Was NAME already seen? */ | |
9fdc877b | 4178 | if (filename_seen (data->filename_seen_cache, name, 1)) |
c94fdfd0 EZ |
4179 | { |
4180 | /* Yes; don't print it again. */ | |
4181 | return; | |
4182 | } | |
9fdc877b | 4183 | |
c94fdfd0 | 4184 | /* No; print it and reset *FIRST. */ |
9fdc877b DE |
4185 | if (! data->first) |
4186 | printf_filtered (", "); | |
4187 | data->first = 0; | |
c906108c SS |
4188 | |
4189 | wrap_here (""); | |
4190 | fputs_filtered (name, gdb_stdout); | |
c5aa993b | 4191 | } |
c906108c | 4192 | |
ccefe4c4 | 4193 | /* A callback for map_partial_symbol_filenames. */ |
eca864fe | 4194 | |
ccefe4c4 | 4195 | static void |
533a737e | 4196 | output_partial_symbol_filename (const char *filename, const char *fullname, |
ccefe4c4 TT |
4197 | void *data) |
4198 | { | |
4199 | output_source_filename (fullname ? fullname : filename, data); | |
4200 | } | |
4201 | ||
c906108c | 4202 | static void |
fba45db2 | 4203 | sources_info (char *ignore, int from_tty) |
c906108c | 4204 | { |
43f3e411 | 4205 | struct compunit_symtab *cu; |
52f0bd74 | 4206 | struct symtab *s; |
52f0bd74 | 4207 | struct objfile *objfile; |
9fdc877b DE |
4208 | struct output_source_filename_data data; |
4209 | struct cleanup *cleanups; | |
c5aa993b | 4210 | |
c906108c SS |
4211 | if (!have_full_symbols () && !have_partial_symbols ()) |
4212 | { | |
8a3fe4f8 | 4213 | error (_("No symbol table is loaded. Use the \"file\" command.")); |
c906108c | 4214 | } |
c5aa993b | 4215 | |
9fdc877b DE |
4216 | data.filename_seen_cache = create_filename_seen_cache (); |
4217 | cleanups = make_cleanup (delete_filename_seen_cache, | |
4218 | data.filename_seen_cache); | |
4219 | ||
c906108c SS |
4220 | printf_filtered ("Source files for which symbols have been read in:\n\n"); |
4221 | ||
9fdc877b | 4222 | data.first = 1; |
43f3e411 | 4223 | ALL_FILETABS (objfile, cu, s) |
c5aa993b | 4224 | { |
d092d1a2 | 4225 | const char *fullname = symtab_to_fullname (s); |
433759f7 | 4226 | |
f35a17b5 | 4227 | output_source_filename (fullname, &data); |
c5aa993b | 4228 | } |
c906108c | 4229 | printf_filtered ("\n\n"); |
c5aa993b | 4230 | |
3e43a32a MS |
4231 | printf_filtered ("Source files for which symbols " |
4232 | "will be read in on demand:\n\n"); | |
c906108c | 4233 | |
9fdc877b DE |
4234 | clear_filename_seen_cache (data.filename_seen_cache); |
4235 | data.first = 1; | |
bb4142cf DE |
4236 | map_symbol_filenames (output_partial_symbol_filename, &data, |
4237 | 1 /*need_fullname*/); | |
c906108c | 4238 | printf_filtered ("\n"); |
9fdc877b DE |
4239 | |
4240 | do_cleanups (cleanups); | |
c906108c SS |
4241 | } |
4242 | ||
fbd9ab74 JK |
4243 | /* Compare FILE against all the NFILES entries of FILES. If BASENAMES is |
4244 | non-zero compare only lbasename of FILES. */ | |
4245 | ||
c906108c | 4246 | static int |
96142726 | 4247 | file_matches (const char *file, const char *files[], int nfiles, int basenames) |
c906108c SS |
4248 | { |
4249 | int i; | |
4250 | ||
4251 | if (file != NULL && nfiles != 0) | |
4252 | { | |
4253 | for (i = 0; i < nfiles; i++) | |
c5aa993b | 4254 | { |
fbd9ab74 JK |
4255 | if (compare_filenames_for_search (file, (basenames |
4256 | ? lbasename (files[i]) | |
4257 | : files[i]))) | |
c5aa993b JM |
4258 | return 1; |
4259 | } | |
c906108c SS |
4260 | } |
4261 | else if (nfiles == 0) | |
4262 | return 1; | |
4263 | return 0; | |
4264 | } | |
4265 | ||
c378eb4e | 4266 | /* Free any memory associated with a search. */ |
eca864fe | 4267 | |
c906108c | 4268 | void |
fba45db2 | 4269 | free_search_symbols (struct symbol_search *symbols) |
c906108c SS |
4270 | { |
4271 | struct symbol_search *p; | |
4272 | struct symbol_search *next; | |
4273 | ||
4274 | for (p = symbols; p != NULL; p = next) | |
4275 | { | |
4276 | next = p->next; | |
b8c9b27d | 4277 | xfree (p); |
c906108c SS |
4278 | } |
4279 | } | |
4280 | ||
5bd98722 | 4281 | static void |
b52109bc | 4282 | do_free_search_symbols_cleanup (void *symbolsp) |
5bd98722 | 4283 | { |
b52109bc DE |
4284 | struct symbol_search *symbols = *(struct symbol_search **) symbolsp; |
4285 | ||
5bd98722 AC |
4286 | free_search_symbols (symbols); |
4287 | } | |
4288 | ||
4289 | struct cleanup * | |
b52109bc | 4290 | make_cleanup_free_search_symbols (struct symbol_search **symbolsp) |
5bd98722 | 4291 | { |
b52109bc | 4292 | return make_cleanup (do_free_search_symbols_cleanup, symbolsp); |
5bd98722 AC |
4293 | } |
4294 | ||
b52109bc | 4295 | /* Helper function for sort_search_symbols_remove_dups and qsort. Can only |
434d2d4f | 4296 | sort symbols, not minimal symbols. */ |
eca864fe | 4297 | |
434d2d4f DJ |
4298 | static int |
4299 | compare_search_syms (const void *sa, const void *sb) | |
4300 | { | |
b52109bc DE |
4301 | struct symbol_search *sym_a = *(struct symbol_search **) sa; |
4302 | struct symbol_search *sym_b = *(struct symbol_search **) sb; | |
4303 | int c; | |
4304 | ||
08be3fe3 DE |
4305 | c = FILENAME_CMP (symbol_symtab (sym_a->symbol)->filename, |
4306 | symbol_symtab (sym_b->symbol)->filename); | |
b52109bc DE |
4307 | if (c != 0) |
4308 | return c; | |
434d2d4f | 4309 | |
b52109bc DE |
4310 | if (sym_a->block != sym_b->block) |
4311 | return sym_a->block - sym_b->block; | |
4312 | ||
4313 | return strcmp (SYMBOL_PRINT_NAME (sym_a->symbol), | |
4314 | SYMBOL_PRINT_NAME (sym_b->symbol)); | |
434d2d4f DJ |
4315 | } |
4316 | ||
b52109bc DE |
4317 | /* Sort the NFOUND symbols in list FOUND and remove duplicates. |
4318 | The duplicates are freed, and the new list is returned in | |
4319 | *NEW_HEAD, *NEW_TAIL. */ | |
4320 | ||
4321 | static void | |
4322 | sort_search_symbols_remove_dups (struct symbol_search *found, int nfound, | |
4323 | struct symbol_search **new_head, | |
4324 | struct symbol_search **new_tail) | |
434d2d4f DJ |
4325 | { |
4326 | struct symbol_search **symbols, *symp, *old_next; | |
b52109bc | 4327 | int i, j, nunique; |
434d2d4f | 4328 | |
b52109bc DE |
4329 | gdb_assert (found != NULL && nfound > 0); |
4330 | ||
4331 | /* Build an array out of the list so we can easily sort them. */ | |
434d2d4f DJ |
4332 | symbols = (struct symbol_search **) xmalloc (sizeof (struct symbol_search *) |
4333 | * nfound); | |
b52109bc | 4334 | symp = found; |
434d2d4f DJ |
4335 | for (i = 0; i < nfound; i++) |
4336 | { | |
b52109bc DE |
4337 | gdb_assert (symp != NULL); |
4338 | gdb_assert (symp->block >= 0 && symp->block <= 1); | |
434d2d4f DJ |
4339 | symbols[i] = symp; |
4340 | symp = symp->next; | |
4341 | } | |
b52109bc | 4342 | gdb_assert (symp == NULL); |
434d2d4f DJ |
4343 | |
4344 | qsort (symbols, nfound, sizeof (struct symbol_search *), | |
4345 | compare_search_syms); | |
4346 | ||
b52109bc DE |
4347 | /* Collapse out the dups. */ |
4348 | for (i = 1, j = 1; i < nfound; ++i) | |
434d2d4f | 4349 | { |
6b9780fb | 4350 | if (compare_search_syms (&symbols[j - 1], &symbols[i]) != 0) |
b52109bc DE |
4351 | symbols[j++] = symbols[i]; |
4352 | else | |
4353 | xfree (symbols[i]); | |
434d2d4f | 4354 | } |
b52109bc DE |
4355 | nunique = j; |
4356 | symbols[j - 1]->next = NULL; | |
4357 | ||
4358 | /* Rebuild the linked list. */ | |
4359 | for (i = 0; i < nunique - 1; i++) | |
4360 | symbols[i]->next = symbols[i + 1]; | |
4361 | symbols[nunique - 1]->next = NULL; | |
434d2d4f | 4362 | |
b52109bc DE |
4363 | *new_head = symbols[0]; |
4364 | *new_tail = symbols[nunique - 1]; | |
8ed32cc0 | 4365 | xfree (symbols); |
434d2d4f | 4366 | } |
5bd98722 | 4367 | |
ccefe4c4 TT |
4368 | /* An object of this type is passed as the user_data to the |
4369 | expand_symtabs_matching method. */ | |
4370 | struct search_symbols_data | |
4371 | { | |
4372 | int nfiles; | |
96142726 | 4373 | const char **files; |
681bf369 JK |
4374 | |
4375 | /* It is true if PREG contains valid data, false otherwise. */ | |
4376 | unsigned preg_p : 1; | |
4377 | regex_t preg; | |
ccefe4c4 TT |
4378 | }; |
4379 | ||
4380 | /* A callback for expand_symtabs_matching. */ | |
eca864fe | 4381 | |
ccefe4c4 | 4382 | static int |
fbd9ab74 JK |
4383 | search_symbols_file_matches (const char *filename, void *user_data, |
4384 | int basenames) | |
ccefe4c4 TT |
4385 | { |
4386 | struct search_symbols_data *data = user_data; | |
433759f7 | 4387 | |
fbd9ab74 | 4388 | return file_matches (filename, data->files, data->nfiles, basenames); |
ccefe4c4 TT |
4389 | } |
4390 | ||
4391 | /* A callback for expand_symtabs_matching. */ | |
eca864fe | 4392 | |
ccefe4c4 | 4393 | static int |
e078317b | 4394 | search_symbols_name_matches (const char *symname, void *user_data) |
ccefe4c4 TT |
4395 | { |
4396 | struct search_symbols_data *data = user_data; | |
433759f7 | 4397 | |
681bf369 | 4398 | return !data->preg_p || regexec (&data->preg, symname, 0, NULL, 0) == 0; |
ccefe4c4 TT |
4399 | } |
4400 | ||
c906108c SS |
4401 | /* Search the symbol table for matches to the regular expression REGEXP, |
4402 | returning the results in *MATCHES. | |
4403 | ||
4404 | Only symbols of KIND are searched: | |
e8930875 JK |
4405 | VARIABLES_DOMAIN - search all symbols, excluding functions, type names, |
4406 | and constants (enums) | |
176620f1 EZ |
4407 | FUNCTIONS_DOMAIN - search all functions |
4408 | TYPES_DOMAIN - search all type names | |
7b08b9eb | 4409 | ALL_DOMAIN - an internal error for this function |
c906108c SS |
4410 | |
4411 | free_search_symbols should be called when *MATCHES is no longer needed. | |
434d2d4f | 4412 | |
b52109bc DE |
4413 | Within each file the results are sorted locally; each symtab's global and |
4414 | static blocks are separately alphabetized. | |
4415 | Duplicate entries are removed. */ | |
c378eb4e | 4416 | |
c906108c | 4417 | void |
96142726 TT |
4418 | search_symbols (const char *regexp, enum search_domain kind, |
4419 | int nfiles, const char *files[], | |
fd118b61 | 4420 | struct symbol_search **matches) |
c906108c | 4421 | { |
43f3e411 | 4422 | struct compunit_symtab *cust; |
346d1dfe | 4423 | const struct blockvector *bv; |
52f0bd74 AC |
4424 | struct block *b; |
4425 | int i = 0; | |
8157b174 | 4426 | struct block_iterator iter; |
52f0bd74 | 4427 | struct symbol *sym; |
c906108c SS |
4428 | struct objfile *objfile; |
4429 | struct minimal_symbol *msymbol; | |
c906108c | 4430 | int found_misc = 0; |
bc043ef3 | 4431 | static const enum minimal_symbol_type types[] |
e8930875 | 4432 | = {mst_data, mst_text, mst_abs}; |
bc043ef3 | 4433 | static const enum minimal_symbol_type types2[] |
e8930875 | 4434 | = {mst_bss, mst_file_text, mst_abs}; |
bc043ef3 | 4435 | static const enum minimal_symbol_type types3[] |
e8930875 | 4436 | = {mst_file_data, mst_solib_trampoline, mst_abs}; |
bc043ef3 | 4437 | static const enum minimal_symbol_type types4[] |
e8930875 | 4438 | = {mst_file_bss, mst_text_gnu_ifunc, mst_abs}; |
c906108c SS |
4439 | enum minimal_symbol_type ourtype; |
4440 | enum minimal_symbol_type ourtype2; | |
4441 | enum minimal_symbol_type ourtype3; | |
4442 | enum minimal_symbol_type ourtype4; | |
b52109bc | 4443 | struct symbol_search *found; |
c906108c | 4444 | struct symbol_search *tail; |
ccefe4c4 | 4445 | struct search_symbols_data datum; |
b52109bc | 4446 | int nfound; |
c906108c | 4447 | |
681bf369 JK |
4448 | /* OLD_CHAIN .. RETVAL_CHAIN is always freed, RETVAL_CHAIN .. current |
4449 | CLEANUP_CHAIN is freed only in the case of an error. */ | |
4450 | struct cleanup *old_chain = make_cleanup (null_cleanup, NULL); | |
4451 | struct cleanup *retval_chain; | |
4452 | ||
e8930875 JK |
4453 | gdb_assert (kind <= TYPES_DOMAIN); |
4454 | ||
8903c50d TT |
4455 | ourtype = types[kind]; |
4456 | ourtype2 = types2[kind]; | |
4457 | ourtype3 = types3[kind]; | |
4458 | ourtype4 = types4[kind]; | |
c906108c | 4459 | |
b52109bc | 4460 | *matches = NULL; |
681bf369 | 4461 | datum.preg_p = 0; |
c906108c SS |
4462 | |
4463 | if (regexp != NULL) | |
4464 | { | |
4465 | /* Make sure spacing is right for C++ operators. | |
4466 | This is just a courtesy to make the matching less sensitive | |
4467 | to how many spaces the user leaves between 'operator' | |
c378eb4e | 4468 | and <TYPENAME> or <OPERATOR>. */ |
96142726 TT |
4469 | const char *opend; |
4470 | const char *opname = operator_chars (regexp, &opend); | |
681bf369 | 4471 | int errcode; |
433759f7 | 4472 | |
c906108c | 4473 | if (*opname) |
c5aa993b | 4474 | { |
3e43a32a MS |
4475 | int fix = -1; /* -1 means ok; otherwise number of |
4476 | spaces needed. */ | |
433759f7 | 4477 | |
c5aa993b JM |
4478 | if (isalpha (*opname) || *opname == '_' || *opname == '$') |
4479 | { | |
c378eb4e | 4480 | /* There should 1 space between 'operator' and 'TYPENAME'. */ |
c5aa993b JM |
4481 | if (opname[-1] != ' ' || opname[-2] == ' ') |
4482 | fix = 1; | |
4483 | } | |
4484 | else | |
4485 | { | |
c378eb4e | 4486 | /* There should 0 spaces between 'operator' and 'OPERATOR'. */ |
c5aa993b JM |
4487 | if (opname[-1] == ' ') |
4488 | fix = 0; | |
4489 | } | |
c378eb4e | 4490 | /* If wrong number of spaces, fix it. */ |
c5aa993b JM |
4491 | if (fix >= 0) |
4492 | { | |
045f55a6 | 4493 | char *tmp = (char *) alloca (8 + fix + strlen (opname) + 1); |
433759f7 | 4494 | |
c5aa993b JM |
4495 | sprintf (tmp, "operator%.*s%s", fix, " ", opname); |
4496 | regexp = tmp; | |
4497 | } | |
4498 | } | |
4499 | ||
559a7a62 JK |
4500 | errcode = regcomp (&datum.preg, regexp, |
4501 | REG_NOSUB | (case_sensitivity == case_sensitive_off | |
4502 | ? REG_ICASE : 0)); | |
681bf369 JK |
4503 | if (errcode != 0) |
4504 | { | |
4505 | char *err = get_regcomp_error (errcode, &datum.preg); | |
4506 | ||
4507 | make_cleanup (xfree, err); | |
4508 | error (_("Invalid regexp (%s): %s"), err, regexp); | |
4509 | } | |
4510 | datum.preg_p = 1; | |
4511 | make_regfree_cleanup (&datum.preg); | |
c906108c SS |
4512 | } |
4513 | ||
4514 | /* Search through the partial symtabs *first* for all symbols | |
4515 | matching the regexp. That way we don't have to reproduce all of | |
c378eb4e | 4516 | the machinery below. */ |
c906108c | 4517 | |
ccefe4c4 TT |
4518 | datum.nfiles = nfiles; |
4519 | datum.files = files; | |
bb4142cf DE |
4520 | expand_symtabs_matching ((nfiles == 0 |
4521 | ? NULL | |
4522 | : search_symbols_file_matches), | |
4523 | search_symbols_name_matches, | |
276d885b | 4524 | NULL, kind, &datum); |
c906108c SS |
4525 | |
4526 | /* Here, we search through the minimal symbol tables for functions | |
4527 | and variables that match, and force their symbols to be read. | |
4528 | This is in particular necessary for demangled variable names, | |
4529 | which are no longer put into the partial symbol tables. | |
4530 | The symbol will then be found during the scan of symtabs below. | |
4531 | ||
4532 | For functions, find_pc_symtab should succeed if we have debug info | |
422d65e7 DE |
4533 | for the function, for variables we have to call |
4534 | lookup_symbol_in_objfile_from_linkage_name to determine if the variable | |
4535 | has debug info. | |
c906108c | 4536 | If the lookup fails, set found_misc so that we will rescan to print |
422d65e7 DE |
4537 | any matching symbols without debug info. |
4538 | We only search the objfile the msymbol came from, we no longer search | |
4539 | all objfiles. In large programs (1000s of shared libs) searching all | |
4540 | objfiles is not worth the pain. */ | |
c906108c | 4541 | |
176620f1 | 4542 | if (nfiles == 0 && (kind == VARIABLES_DOMAIN || kind == FUNCTIONS_DOMAIN)) |
c906108c SS |
4543 | { |
4544 | ALL_MSYMBOLS (objfile, msymbol) | |
c5aa993b | 4545 | { |
89295b4d PP |
4546 | QUIT; |
4547 | ||
422d65e7 DE |
4548 | if (msymbol->created_by_gdb) |
4549 | continue; | |
4550 | ||
d50bd42b DE |
4551 | if (MSYMBOL_TYPE (msymbol) == ourtype |
4552 | || MSYMBOL_TYPE (msymbol) == ourtype2 | |
4553 | || MSYMBOL_TYPE (msymbol) == ourtype3 | |
4554 | || MSYMBOL_TYPE (msymbol) == ourtype4) | |
c5aa993b | 4555 | { |
681bf369 | 4556 | if (!datum.preg_p |
efd66ac6 | 4557 | || regexec (&datum.preg, MSYMBOL_NATURAL_NAME (msymbol), 0, |
681bf369 | 4558 | NULL, 0) == 0) |
c5aa993b | 4559 | { |
422d65e7 DE |
4560 | /* Note: An important side-effect of these lookup functions |
4561 | is to expand the symbol table if msymbol is found, for the | |
43f3e411 | 4562 | benefit of the next loop on ALL_COMPUNITS. */ |
422d65e7 | 4563 | if (kind == FUNCTIONS_DOMAIN |
43f3e411 DE |
4564 | ? (find_pc_compunit_symtab |
4565 | (MSYMBOL_VALUE_ADDRESS (objfile, msymbol)) == NULL) | |
422d65e7 | 4566 | : (lookup_symbol_in_objfile_from_linkage_name |
efd66ac6 | 4567 | (objfile, MSYMBOL_LINKAGE_NAME (msymbol), VAR_DOMAIN) |
422d65e7 DE |
4568 | == NULL)) |
4569 | found_misc = 1; | |
c5aa993b JM |
4570 | } |
4571 | } | |
4572 | } | |
c906108c SS |
4573 | } |
4574 | ||
b52109bc DE |
4575 | found = NULL; |
4576 | tail = NULL; | |
4577 | nfound = 0; | |
4578 | retval_chain = make_cleanup_free_search_symbols (&found); | |
4579 | ||
43f3e411 | 4580 | ALL_COMPUNITS (objfile, cust) |
c5aa993b | 4581 | { |
43f3e411 | 4582 | bv = COMPUNIT_BLOCKVECTOR (cust); |
d50bd42b DE |
4583 | for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++) |
4584 | { | |
d50bd42b DE |
4585 | b = BLOCKVECTOR_BLOCK (bv, i); |
4586 | ALL_BLOCK_SYMBOLS (b, iter, sym) | |
4587 | { | |
08be3fe3 | 4588 | struct symtab *real_symtab = symbol_symtab (sym); |
d50bd42b DE |
4589 | |
4590 | QUIT; | |
4591 | ||
fbd9ab74 JK |
4592 | /* Check first sole REAL_SYMTAB->FILENAME. It does not need to be |
4593 | a substring of symtab_to_fullname as it may contain "./" etc. */ | |
4594 | if ((file_matches (real_symtab->filename, files, nfiles, 0) | |
4595 | || ((basenames_may_differ | |
4596 | || file_matches (lbasename (real_symtab->filename), | |
4597 | files, nfiles, 1)) | |
4598 | && file_matches (symtab_to_fullname (real_symtab), | |
4599 | files, nfiles, 0))) | |
d50bd42b DE |
4600 | && ((!datum.preg_p |
4601 | || regexec (&datum.preg, SYMBOL_NATURAL_NAME (sym), 0, | |
4602 | NULL, 0) == 0) | |
4603 | && ((kind == VARIABLES_DOMAIN | |
4604 | && SYMBOL_CLASS (sym) != LOC_TYPEDEF | |
4605 | && SYMBOL_CLASS (sym) != LOC_UNRESOLVED | |
4606 | && SYMBOL_CLASS (sym) != LOC_BLOCK | |
4607 | /* LOC_CONST can be used for more than just enums, | |
4608 | e.g., c++ static const members. | |
4609 | We only want to skip enums here. */ | |
4610 | && !(SYMBOL_CLASS (sym) == LOC_CONST | |
01465b56 DE |
4611 | && (TYPE_CODE (SYMBOL_TYPE (sym)) |
4612 | == TYPE_CODE_ENUM))) | |
d50bd42b DE |
4613 | || (kind == FUNCTIONS_DOMAIN |
4614 | && SYMBOL_CLASS (sym) == LOC_BLOCK) | |
4615 | || (kind == TYPES_DOMAIN | |
4616 | && SYMBOL_CLASS (sym) == LOC_TYPEDEF)))) | |
4617 | { | |
4618 | /* match */ | |
b52109bc | 4619 | struct symbol_search *psr = (struct symbol_search *) |
d50bd42b DE |
4620 | xmalloc (sizeof (struct symbol_search)); |
4621 | psr->block = i; | |
d50bd42b | 4622 | psr->symbol = sym; |
7c7b6655 | 4623 | memset (&psr->msymbol, 0, sizeof (psr->msymbol)); |
d50bd42b DE |
4624 | psr->next = NULL; |
4625 | if (tail == NULL) | |
b52109bc | 4626 | found = psr; |
d50bd42b DE |
4627 | else |
4628 | tail->next = psr; | |
4629 | tail = psr; | |
4630 | nfound ++; | |
4631 | } | |
4632 | } | |
d50bd42b | 4633 | } |
c5aa993b | 4634 | } |
c906108c | 4635 | |
b52109bc DE |
4636 | if (found != NULL) |
4637 | { | |
4638 | sort_search_symbols_remove_dups (found, nfound, &found, &tail); | |
4639 | /* Note: nfound is no longer useful beyond this point. */ | |
4640 | } | |
4641 | ||
c906108c | 4642 | /* If there are no eyes, avoid all contact. I mean, if there are |
01465b56 | 4643 | no debug symbols, then add matching minsyms. */ |
c906108c | 4644 | |
422d65e7 | 4645 | if (found_misc || (nfiles == 0 && kind != FUNCTIONS_DOMAIN)) |
c906108c SS |
4646 | { |
4647 | ALL_MSYMBOLS (objfile, msymbol) | |
c5aa993b | 4648 | { |
89295b4d PP |
4649 | QUIT; |
4650 | ||
422d65e7 DE |
4651 | if (msymbol->created_by_gdb) |
4652 | continue; | |
4653 | ||
d50bd42b DE |
4654 | if (MSYMBOL_TYPE (msymbol) == ourtype |
4655 | || MSYMBOL_TYPE (msymbol) == ourtype2 | |
4656 | || MSYMBOL_TYPE (msymbol) == ourtype3 | |
4657 | || MSYMBOL_TYPE (msymbol) == ourtype4) | |
c5aa993b | 4658 | { |
681bf369 | 4659 | if (!datum.preg_p |
efd66ac6 | 4660 | || regexec (&datum.preg, MSYMBOL_NATURAL_NAME (msymbol), 0, |
681bf369 | 4661 | NULL, 0) == 0) |
c5aa993b | 4662 | { |
422d65e7 DE |
4663 | /* For functions we can do a quick check of whether the |
4664 | symbol might be found via find_pc_symtab. */ | |
4665 | if (kind != FUNCTIONS_DOMAIN | |
43f3e411 DE |
4666 | || (find_pc_compunit_symtab |
4667 | (MSYMBOL_VALUE_ADDRESS (objfile, msymbol)) == NULL)) | |
c5aa993b | 4668 | { |
422d65e7 | 4669 | if (lookup_symbol_in_objfile_from_linkage_name |
efd66ac6 | 4670 | (objfile, MSYMBOL_LINKAGE_NAME (msymbol), VAR_DOMAIN) |
422d65e7 | 4671 | == NULL) |
c5aa993b JM |
4672 | { |
4673 | /* match */ | |
b52109bc | 4674 | struct symbol_search *psr = (struct symbol_search *) |
3e43a32a | 4675 | xmalloc (sizeof (struct symbol_search)); |
c5aa993b | 4676 | psr->block = i; |
7c7b6655 TT |
4677 | psr->msymbol.minsym = msymbol; |
4678 | psr->msymbol.objfile = objfile; | |
c5aa993b JM |
4679 | psr->symbol = NULL; |
4680 | psr->next = NULL; | |
4681 | if (tail == NULL) | |
b52109bc | 4682 | found = psr; |
c5aa993b JM |
4683 | else |
4684 | tail->next = psr; | |
4685 | tail = psr; | |
4686 | } | |
4687 | } | |
4688 | } | |
4689 | } | |
4690 | } | |
c906108c SS |
4691 | } |
4692 | ||
681bf369 JK |
4693 | discard_cleanups (retval_chain); |
4694 | do_cleanups (old_chain); | |
b52109bc | 4695 | *matches = found; |
c906108c SS |
4696 | } |
4697 | ||
4698 | /* Helper function for symtab_symbol_info, this function uses | |
4699 | the data returned from search_symbols() to print information | |
c378eb4e MS |
4700 | regarding the match to gdb_stdout. */ |
4701 | ||
c906108c | 4702 | static void |
8903c50d | 4703 | print_symbol_info (enum search_domain kind, |
d01060f0 | 4704 | struct symbol *sym, |
05cba821 | 4705 | int block, const char *last) |
c906108c | 4706 | { |
08be3fe3 | 4707 | struct symtab *s = symbol_symtab (sym); |
05cba821 JK |
4708 | const char *s_filename = symtab_to_filename_for_display (s); |
4709 | ||
4710 | if (last == NULL || filename_cmp (last, s_filename) != 0) | |
c906108c SS |
4711 | { |
4712 | fputs_filtered ("\nFile ", gdb_stdout); | |
05cba821 | 4713 | fputs_filtered (s_filename, gdb_stdout); |
c906108c SS |
4714 | fputs_filtered (":\n", gdb_stdout); |
4715 | } | |
4716 | ||
176620f1 | 4717 | if (kind != TYPES_DOMAIN && block == STATIC_BLOCK) |
c906108c | 4718 | printf_filtered ("static "); |
c5aa993b | 4719 | |
c378eb4e | 4720 | /* Typedef that is not a C++ class. */ |
176620f1 EZ |
4721 | if (kind == TYPES_DOMAIN |
4722 | && SYMBOL_DOMAIN (sym) != STRUCT_DOMAIN) | |
a5238fbc | 4723 | typedef_print (SYMBOL_TYPE (sym), sym, gdb_stdout); |
c378eb4e | 4724 | /* variable, func, or typedef-that-is-c++-class. */ |
d50bd42b DE |
4725 | else if (kind < TYPES_DOMAIN |
4726 | || (kind == TYPES_DOMAIN | |
4727 | && SYMBOL_DOMAIN (sym) == STRUCT_DOMAIN)) | |
c906108c SS |
4728 | { |
4729 | type_print (SYMBOL_TYPE (sym), | |
c5aa993b | 4730 | (SYMBOL_CLASS (sym) == LOC_TYPEDEF |
de5ad195 | 4731 | ? "" : SYMBOL_PRINT_NAME (sym)), |
c5aa993b | 4732 | gdb_stdout, 0); |
c906108c SS |
4733 | |
4734 | printf_filtered (";\n"); | |
4735 | } | |
c906108c SS |
4736 | } |
4737 | ||
4738 | /* This help function for symtab_symbol_info() prints information | |
c378eb4e MS |
4739 | for non-debugging symbols to gdb_stdout. */ |
4740 | ||
c906108c | 4741 | static void |
7c7b6655 | 4742 | print_msymbol_info (struct bound_minimal_symbol msymbol) |
c906108c | 4743 | { |
7c7b6655 | 4744 | struct gdbarch *gdbarch = get_objfile_arch (msymbol.objfile); |
3ac4495a MS |
4745 | char *tmp; |
4746 | ||
d80b854b | 4747 | if (gdbarch_addr_bit (gdbarch) <= 32) |
77e371c0 | 4748 | tmp = hex_string_custom (BMSYMBOL_VALUE_ADDRESS (msymbol) |
bb599908 PH |
4749 | & (CORE_ADDR) 0xffffffff, |
4750 | 8); | |
3ac4495a | 4751 | else |
77e371c0 | 4752 | tmp = hex_string_custom (BMSYMBOL_VALUE_ADDRESS (msymbol), |
bb599908 | 4753 | 16); |
3ac4495a | 4754 | printf_filtered ("%s %s\n", |
efd66ac6 | 4755 | tmp, MSYMBOL_PRINT_NAME (msymbol.minsym)); |
c906108c SS |
4756 | } |
4757 | ||
4758 | /* This is the guts of the commands "info functions", "info types", and | |
c378eb4e | 4759 | "info variables". It calls search_symbols to find all matches and then |
c906108c | 4760 | print_[m]symbol_info to print out some useful information about the |
c378eb4e MS |
4761 | matches. */ |
4762 | ||
c906108c | 4763 | static void |
8903c50d | 4764 | symtab_symbol_info (char *regexp, enum search_domain kind, int from_tty) |
c906108c | 4765 | { |
bc043ef3 | 4766 | static const char * const classnames[] = |
e8930875 | 4767 | {"variable", "function", "type"}; |
c906108c SS |
4768 | struct symbol_search *symbols; |
4769 | struct symbol_search *p; | |
4770 | struct cleanup *old_chain; | |
05cba821 | 4771 | const char *last_filename = NULL; |
c906108c SS |
4772 | int first = 1; |
4773 | ||
e8930875 JK |
4774 | gdb_assert (kind <= TYPES_DOMAIN); |
4775 | ||
c378eb4e | 4776 | /* Must make sure that if we're interrupted, symbols gets freed. */ |
96142726 | 4777 | search_symbols (regexp, kind, 0, NULL, &symbols); |
b52109bc | 4778 | old_chain = make_cleanup_free_search_symbols (&symbols); |
c906108c | 4779 | |
ca242aad YQ |
4780 | if (regexp != NULL) |
4781 | printf_filtered (_("All %ss matching regular expression \"%s\":\n"), | |
4782 | classnames[kind], regexp); | |
4783 | else | |
4784 | printf_filtered (_("All defined %ss:\n"), classnames[kind]); | |
c906108c SS |
4785 | |
4786 | for (p = symbols; p != NULL; p = p->next) | |
4787 | { | |
4788 | QUIT; | |
4789 | ||
7c7b6655 | 4790 | if (p->msymbol.minsym != NULL) |
c5aa993b JM |
4791 | { |
4792 | if (first) | |
4793 | { | |
ca242aad | 4794 | printf_filtered (_("\nNon-debugging symbols:\n")); |
c5aa993b JM |
4795 | first = 0; |
4796 | } | |
4797 | print_msymbol_info (p->msymbol); | |
4798 | } | |
c906108c | 4799 | else |
c5aa993b JM |
4800 | { |
4801 | print_symbol_info (kind, | |
c5aa993b JM |
4802 | p->symbol, |
4803 | p->block, | |
4804 | last_filename); | |
d01060f0 | 4805 | last_filename |
08be3fe3 | 4806 | = symtab_to_filename_for_display (symbol_symtab (p->symbol)); |
c5aa993b | 4807 | } |
c906108c SS |
4808 | } |
4809 | ||
4810 | do_cleanups (old_chain); | |
4811 | } | |
4812 | ||
4813 | static void | |
fba45db2 | 4814 | variables_info (char *regexp, int from_tty) |
c906108c | 4815 | { |
176620f1 | 4816 | symtab_symbol_info (regexp, VARIABLES_DOMAIN, from_tty); |
c906108c SS |
4817 | } |
4818 | ||
4819 | static void | |
fba45db2 | 4820 | functions_info (char *regexp, int from_tty) |
c906108c | 4821 | { |
176620f1 | 4822 | symtab_symbol_info (regexp, FUNCTIONS_DOMAIN, from_tty); |
c906108c SS |
4823 | } |
4824 | ||
357e46e7 | 4825 | |
c906108c | 4826 | static void |
fba45db2 | 4827 | types_info (char *regexp, int from_tty) |
c906108c | 4828 | { |
176620f1 | 4829 | symtab_symbol_info (regexp, TYPES_DOMAIN, from_tty); |
c906108c SS |
4830 | } |
4831 | ||
c378eb4e | 4832 | /* Breakpoint all functions matching regular expression. */ |
8926118c | 4833 | |
8b93c638 | 4834 | void |
fba45db2 | 4835 | rbreak_command_wrapper (char *regexp, int from_tty) |
8b93c638 JM |
4836 | { |
4837 | rbreak_command (regexp, from_tty); | |
4838 | } | |
8926118c | 4839 | |
95a42b64 TT |
4840 | /* A cleanup function that calls end_rbreak_breakpoints. */ |
4841 | ||
4842 | static void | |
4843 | do_end_rbreak_breakpoints (void *ignore) | |
4844 | { | |
4845 | end_rbreak_breakpoints (); | |
4846 | } | |
4847 | ||
c906108c | 4848 | static void |
fba45db2 | 4849 | rbreak_command (char *regexp, int from_tty) |
c906108c SS |
4850 | { |
4851 | struct symbol_search *ss; | |
4852 | struct symbol_search *p; | |
4853 | struct cleanup *old_chain; | |
95a42b64 TT |
4854 | char *string = NULL; |
4855 | int len = 0; | |
96142726 TT |
4856 | const char **files = NULL; |
4857 | const char *file_name; | |
8bd10a10 | 4858 | int nfiles = 0; |
c906108c | 4859 | |
8bd10a10 CM |
4860 | if (regexp) |
4861 | { | |
4862 | char *colon = strchr (regexp, ':'); | |
433759f7 | 4863 | |
8bd10a10 CM |
4864 | if (colon && *(colon + 1) != ':') |
4865 | { | |
4866 | int colon_index; | |
96142726 | 4867 | char *local_name; |
8bd10a10 CM |
4868 | |
4869 | colon_index = colon - regexp; | |
96142726 TT |
4870 | local_name = alloca (colon_index + 1); |
4871 | memcpy (local_name, regexp, colon_index); | |
4872 | local_name[colon_index--] = 0; | |
4873 | while (isspace (local_name[colon_index])) | |
4874 | local_name[colon_index--] = 0; | |
4875 | file_name = local_name; | |
8bd10a10 CM |
4876 | files = &file_name; |
4877 | nfiles = 1; | |
529480d0 | 4878 | regexp = skip_spaces (colon + 1); |
8bd10a10 CM |
4879 | } |
4880 | } | |
4881 | ||
4882 | search_symbols (regexp, FUNCTIONS_DOMAIN, nfiles, files, &ss); | |
b52109bc | 4883 | old_chain = make_cleanup_free_search_symbols (&ss); |
95a42b64 | 4884 | make_cleanup (free_current_contents, &string); |
c906108c | 4885 | |
95a42b64 TT |
4886 | start_rbreak_breakpoints (); |
4887 | make_cleanup (do_end_rbreak_breakpoints, NULL); | |
c906108c SS |
4888 | for (p = ss; p != NULL; p = p->next) |
4889 | { | |
7c7b6655 | 4890 | if (p->msymbol.minsym == NULL) |
c5aa993b | 4891 | { |
08be3fe3 | 4892 | struct symtab *symtab = symbol_symtab (p->symbol); |
d01060f0 | 4893 | const char *fullname = symtab_to_fullname (symtab); |
05cba821 JK |
4894 | |
4895 | int newlen = (strlen (fullname) | |
95a42b64 TT |
4896 | + strlen (SYMBOL_LINKAGE_NAME (p->symbol)) |
4897 | + 4); | |
433759f7 | 4898 | |
95a42b64 TT |
4899 | if (newlen > len) |
4900 | { | |
4901 | string = xrealloc (string, newlen); | |
4902 | len = newlen; | |
4903 | } | |
05cba821 | 4904 | strcpy (string, fullname); |
c5aa993b | 4905 | strcat (string, ":'"); |
2335f48e | 4906 | strcat (string, SYMBOL_LINKAGE_NAME (p->symbol)); |
c5aa993b JM |
4907 | strcat (string, "'"); |
4908 | break_command (string, from_tty); | |
176620f1 | 4909 | print_symbol_info (FUNCTIONS_DOMAIN, |
c5aa993b JM |
4910 | p->symbol, |
4911 | p->block, | |
d01060f0 | 4912 | symtab_to_filename_for_display (symtab)); |
c5aa993b | 4913 | } |
c906108c | 4914 | else |
c5aa993b | 4915 | { |
efd66ac6 | 4916 | int newlen = (strlen (MSYMBOL_LINKAGE_NAME (p->msymbol.minsym)) + 3); |
433759f7 | 4917 | |
95a42b64 TT |
4918 | if (newlen > len) |
4919 | { | |
4920 | string = xrealloc (string, newlen); | |
4921 | len = newlen; | |
4922 | } | |
6214f497 | 4923 | strcpy (string, "'"); |
efd66ac6 | 4924 | strcat (string, MSYMBOL_LINKAGE_NAME (p->msymbol.minsym)); |
6214f497 DJ |
4925 | strcat (string, "'"); |
4926 | ||
4927 | break_command (string, from_tty); | |
c5aa993b | 4928 | printf_filtered ("<function, no debug info> %s;\n", |
efd66ac6 | 4929 | MSYMBOL_PRINT_NAME (p->msymbol.minsym)); |
c5aa993b | 4930 | } |
c906108c SS |
4931 | } |
4932 | ||
4933 | do_cleanups (old_chain); | |
4934 | } | |
c906108c | 4935 | \f |
c5aa993b | 4936 | |
1976171a JK |
4937 | /* Evaluate if NAME matches SYM_TEXT and SYM_TEXT_LEN. |
4938 | ||
4939 | Either sym_text[sym_text_len] != '(' and then we search for any | |
4940 | symbol starting with SYM_TEXT text. | |
4941 | ||
4942 | Otherwise sym_text[sym_text_len] == '(' and then we require symbol name to | |
4943 | be terminated at that point. Partial symbol tables do not have parameters | |
4944 | information. */ | |
4945 | ||
4946 | static int | |
4947 | compare_symbol_name (const char *name, const char *sym_text, int sym_text_len) | |
4948 | { | |
4949 | int (*ncmp) (const char *, const char *, size_t); | |
4950 | ||
4951 | ncmp = (case_sensitivity == case_sensitive_on ? strncmp : strncasecmp); | |
4952 | ||
4953 | if (ncmp (name, sym_text, sym_text_len) != 0) | |
4954 | return 0; | |
4955 | ||
4956 | if (sym_text[sym_text_len] == '(') | |
4957 | { | |
4958 | /* User searches for `name(someth...'. Require NAME to be terminated. | |
4959 | Normally psymtabs and gdbindex have no parameter types so '\0' will be | |
4960 | present but accept even parameters presence. In this case this | |
4961 | function is in fact strcmp_iw but whitespace skipping is not supported | |
4962 | for tab completion. */ | |
4963 | ||
4964 | if (name[sym_text_len] != '\0' && name[sym_text_len] != '(') | |
4965 | return 0; | |
4966 | } | |
4967 | ||
4968 | return 1; | |
4969 | } | |
4970 | ||
821296b7 SA |
4971 | /* Free any memory associated with a completion list. */ |
4972 | ||
4973 | static void | |
49c4e619 | 4974 | free_completion_list (VEC (char_ptr) **list_ptr) |
821296b7 | 4975 | { |
49c4e619 TT |
4976 | int i; |
4977 | char *p; | |
821296b7 | 4978 | |
49c4e619 TT |
4979 | for (i = 0; VEC_iterate (char_ptr, *list_ptr, i, p); ++i) |
4980 | xfree (p); | |
4981 | VEC_free (char_ptr, *list_ptr); | |
821296b7 SA |
4982 | } |
4983 | ||
4984 | /* Callback for make_cleanup. */ | |
4985 | ||
4986 | static void | |
4987 | do_free_completion_list (void *list) | |
4988 | { | |
4989 | free_completion_list (list); | |
4990 | } | |
4991 | ||
c906108c SS |
4992 | /* Helper routine for make_symbol_completion_list. */ |
4993 | ||
49c4e619 | 4994 | static VEC (char_ptr) *return_val; |
c906108c SS |
4995 | |
4996 | #define COMPLETION_LIST_ADD_SYMBOL(symbol, sym_text, len, text, word) \ | |
c906108c | 4997 | completion_list_add_name \ |
2335f48e | 4998 | (SYMBOL_NATURAL_NAME (symbol), (sym_text), (len), (text), (word)) |
c906108c | 4999 | |
efd66ac6 TT |
5000 | #define MCOMPLETION_LIST_ADD_SYMBOL(symbol, sym_text, len, text, word) \ |
5001 | completion_list_add_name \ | |
5002 | (MSYMBOL_NATURAL_NAME (symbol), (sym_text), (len), (text), (word)) | |
5003 | ||
c906108c | 5004 | /* Test to see if the symbol specified by SYMNAME (which is already |
c5aa993b | 5005 | demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN |
c378eb4e | 5006 | characters. If so, add it to the current completion list. */ |
c906108c SS |
5007 | |
5008 | static void | |
0d5cff50 DE |
5009 | completion_list_add_name (const char *symname, |
5010 | const char *sym_text, int sym_text_len, | |
5011 | const char *text, const char *word) | |
c906108c | 5012 | { |
c378eb4e | 5013 | /* Clip symbols that cannot match. */ |
1976171a JK |
5014 | if (!compare_symbol_name (symname, sym_text, sym_text_len)) |
5015 | return; | |
c906108c | 5016 | |
c906108c | 5017 | /* We have a match for a completion, so add SYMNAME to the current list |
c378eb4e | 5018 | of matches. Note that the name is moved to freshly malloc'd space. */ |
c906108c SS |
5019 | |
5020 | { | |
5021 | char *new; | |
433759f7 | 5022 | |
c906108c SS |
5023 | if (word == sym_text) |
5024 | { | |
5025 | new = xmalloc (strlen (symname) + 5); | |
5026 | strcpy (new, symname); | |
5027 | } | |
5028 | else if (word > sym_text) | |
5029 | { | |
5030 | /* Return some portion of symname. */ | |
5031 | new = xmalloc (strlen (symname) + 5); | |
5032 | strcpy (new, symname + (word - sym_text)); | |
5033 | } | |
5034 | else | |
5035 | { | |
5036 | /* Return some of SYM_TEXT plus symname. */ | |
5037 | new = xmalloc (strlen (symname) + (sym_text - word) + 5); | |
5038 | strncpy (new, word, sym_text - word); | |
5039 | new[sym_text - word] = '\0'; | |
5040 | strcat (new, symname); | |
5041 | } | |
5042 | ||
49c4e619 | 5043 | VEC_safe_push (char_ptr, return_val, new); |
c906108c SS |
5044 | } |
5045 | } | |
5046 | ||
69636828 AF |
5047 | /* ObjC: In case we are completing on a selector, look as the msymbol |
5048 | again and feed all the selectors into the mill. */ | |
5049 | ||
5050 | static void | |
0d5cff50 DE |
5051 | completion_list_objc_symbol (struct minimal_symbol *msymbol, |
5052 | const char *sym_text, int sym_text_len, | |
5053 | const char *text, const char *word) | |
69636828 AF |
5054 | { |
5055 | static char *tmp = NULL; | |
5056 | static unsigned int tmplen = 0; | |
9af17804 | 5057 | |
0d5cff50 | 5058 | const char *method, *category, *selector; |
69636828 | 5059 | char *tmp2 = NULL; |
9af17804 | 5060 | |
efd66ac6 | 5061 | method = MSYMBOL_NATURAL_NAME (msymbol); |
69636828 AF |
5062 | |
5063 | /* Is it a method? */ | |
5064 | if ((method[0] != '-') && (method[0] != '+')) | |
5065 | return; | |
5066 | ||
5067 | if (sym_text[0] == '[') | |
5068 | /* Complete on shortened method method. */ | |
5069 | completion_list_add_name (method + 1, sym_text, sym_text_len, text, word); | |
9af17804 | 5070 | |
69636828 AF |
5071 | while ((strlen (method) + 1) >= tmplen) |
5072 | { | |
5073 | if (tmplen == 0) | |
5074 | tmplen = 1024; | |
5075 | else | |
5076 | tmplen *= 2; | |
5077 | tmp = xrealloc (tmp, tmplen); | |
5078 | } | |
5079 | selector = strchr (method, ' '); | |
5080 | if (selector != NULL) | |
5081 | selector++; | |
9af17804 | 5082 | |
69636828 | 5083 | category = strchr (method, '('); |
9af17804 | 5084 | |
69636828 AF |
5085 | if ((category != NULL) && (selector != NULL)) |
5086 | { | |
5087 | memcpy (tmp, method, (category - method)); | |
5088 | tmp[category - method] = ' '; | |
5089 | memcpy (tmp + (category - method) + 1, selector, strlen (selector) + 1); | |
5090 | completion_list_add_name (tmp, sym_text, sym_text_len, text, word); | |
5091 | if (sym_text[0] == '[') | |
5092 | completion_list_add_name (tmp + 1, sym_text, sym_text_len, text, word); | |
5093 | } | |
9af17804 | 5094 | |
69636828 AF |
5095 | if (selector != NULL) |
5096 | { | |
5097 | /* Complete on selector only. */ | |
5098 | strcpy (tmp, selector); | |
5099 | tmp2 = strchr (tmp, ']'); | |
5100 | if (tmp2 != NULL) | |
5101 | *tmp2 = '\0'; | |
9af17804 | 5102 | |
69636828 AF |
5103 | completion_list_add_name (tmp, sym_text, sym_text_len, text, word); |
5104 | } | |
5105 | } | |
5106 | ||
5107 | /* Break the non-quoted text based on the characters which are in | |
c378eb4e | 5108 | symbols. FIXME: This should probably be language-specific. */ |
69636828 | 5109 | |
6f937416 PA |
5110 | static const char * |
5111 | language_search_unquoted_string (const char *text, const char *p) | |
69636828 AF |
5112 | { |
5113 | for (; p > text; --p) | |
5114 | { | |
5115 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0') | |
5116 | continue; | |
5117 | else | |
5118 | { | |
5119 | if ((current_language->la_language == language_objc)) | |
5120 | { | |
c378eb4e | 5121 | if (p[-1] == ':') /* Might be part of a method name. */ |
69636828 AF |
5122 | continue; |
5123 | else if (p[-1] == '[' && (p[-2] == '-' || p[-2] == '+')) | |
c378eb4e | 5124 | p -= 2; /* Beginning of a method name. */ |
69636828 | 5125 | else if (p[-1] == ' ' || p[-1] == '(' || p[-1] == ')') |
c378eb4e | 5126 | { /* Might be part of a method name. */ |
6f937416 | 5127 | const char *t = p; |
69636828 AF |
5128 | |
5129 | /* Seeing a ' ' or a '(' is not conclusive evidence | |
5130 | that we are in the middle of a method name. However, | |
5131 | finding "-[" or "+[" should be pretty un-ambiguous. | |
5132 | Unfortunately we have to find it now to decide. */ | |
5133 | ||
5134 | while (t > text) | |
5135 | if (isalnum (t[-1]) || t[-1] == '_' || | |
5136 | t[-1] == ' ' || t[-1] == ':' || | |
5137 | t[-1] == '(' || t[-1] == ')') | |
5138 | --t; | |
5139 | else | |
5140 | break; | |
5141 | ||
5142 | if (t[-1] == '[' && (t[-2] == '-' || t[-2] == '+')) | |
c378eb4e MS |
5143 | p = t - 2; /* Method name detected. */ |
5144 | /* Else we leave with p unchanged. */ | |
69636828 AF |
5145 | } |
5146 | } | |
5147 | break; | |
5148 | } | |
5149 | } | |
5150 | return p; | |
5151 | } | |
5152 | ||
edb3359d | 5153 | static void |
6f937416 PA |
5154 | completion_list_add_fields (struct symbol *sym, const char *sym_text, |
5155 | int sym_text_len, const char *text, | |
5156 | const char *word) | |
edb3359d DJ |
5157 | { |
5158 | if (SYMBOL_CLASS (sym) == LOC_TYPEDEF) | |
5159 | { | |
5160 | struct type *t = SYMBOL_TYPE (sym); | |
5161 | enum type_code c = TYPE_CODE (t); | |
5162 | int j; | |
5163 | ||
5164 | if (c == TYPE_CODE_UNION || c == TYPE_CODE_STRUCT) | |
5165 | for (j = TYPE_N_BASECLASSES (t); j < TYPE_NFIELDS (t); j++) | |
5166 | if (TYPE_FIELD_NAME (t, j)) | |
5167 | completion_list_add_name (TYPE_FIELD_NAME (t, j), | |
5168 | sym_text, sym_text_len, text, word); | |
5169 | } | |
5170 | } | |
5171 | ||
ccefe4c4 | 5172 | /* Type of the user_data argument passed to add_macro_name or |
bb4142cf | 5173 | symbol_completion_matcher. The contents are simply whatever is |
ccefe4c4 TT |
5174 | needed by completion_list_add_name. */ |
5175 | struct add_name_data | |
9a044a89 | 5176 | { |
6f937416 | 5177 | const char *sym_text; |
9a044a89 | 5178 | int sym_text_len; |
6f937416 PA |
5179 | const char *text; |
5180 | const char *word; | |
9a044a89 TT |
5181 | }; |
5182 | ||
5183 | /* A callback used with macro_for_each and macro_for_each_in_scope. | |
5184 | This adds a macro's name to the current completion list. */ | |
eca864fe | 5185 | |
9a044a89 TT |
5186 | static void |
5187 | add_macro_name (const char *name, const struct macro_definition *ignore, | |
9b158ba0 | 5188 | struct macro_source_file *ignore2, int ignore3, |
9a044a89 TT |
5189 | void *user_data) |
5190 | { | |
ccefe4c4 | 5191 | struct add_name_data *datum = (struct add_name_data *) user_data; |
433759f7 | 5192 | |
ac1a991b | 5193 | completion_list_add_name (name, |
ccefe4c4 TT |
5194 | datum->sym_text, datum->sym_text_len, |
5195 | datum->text, datum->word); | |
5196 | } | |
5197 | ||
bb4142cf | 5198 | /* A callback for expand_symtabs_matching. */ |
eca864fe | 5199 | |
7b08b9eb | 5200 | static int |
bb4142cf | 5201 | symbol_completion_matcher (const char *name, void *user_data) |
ccefe4c4 TT |
5202 | { |
5203 | struct add_name_data *datum = (struct add_name_data *) user_data; | |
165195f4 | 5204 | |
1976171a | 5205 | return compare_symbol_name (name, datum->sym_text, datum->sym_text_len); |
9a044a89 TT |
5206 | } |
5207 | ||
49c4e619 | 5208 | VEC (char_ptr) * |
6f937416 PA |
5209 | default_make_symbol_completion_list_break_on (const char *text, |
5210 | const char *word, | |
2f68a895 TT |
5211 | const char *break_on, |
5212 | enum type_code code) | |
c906108c | 5213 | { |
41d27058 JB |
5214 | /* Problem: All of the symbols have to be copied because readline |
5215 | frees them. I'm not going to worry about this; hopefully there | |
5216 | won't be that many. */ | |
5217 | ||
de4f826b | 5218 | struct symbol *sym; |
43f3e411 | 5219 | struct compunit_symtab *cust; |
de4f826b DC |
5220 | struct minimal_symbol *msymbol; |
5221 | struct objfile *objfile; | |
3977b71f | 5222 | const struct block *b; |
edb3359d | 5223 | const struct block *surrounding_static_block, *surrounding_global_block; |
8157b174 | 5224 | struct block_iterator iter; |
c906108c | 5225 | /* The symbol we are completing on. Points in same buffer as text. */ |
6f937416 | 5226 | const char *sym_text; |
c906108c SS |
5227 | /* Length of sym_text. */ |
5228 | int sym_text_len; | |
ccefe4c4 | 5229 | struct add_name_data datum; |
821296b7 | 5230 | struct cleanup *back_to; |
c906108c | 5231 | |
41d27058 | 5232 | /* Now look for the symbol we are supposed to complete on. */ |
c906108c | 5233 | { |
6f937416 | 5234 | const char *p; |
c906108c | 5235 | char quote_found; |
6f937416 | 5236 | const char *quote_pos = NULL; |
c906108c SS |
5237 | |
5238 | /* First see if this is a quoted string. */ | |
5239 | quote_found = '\0'; | |
5240 | for (p = text; *p != '\0'; ++p) | |
5241 | { | |
5242 | if (quote_found != '\0') | |
5243 | { | |
5244 | if (*p == quote_found) | |
5245 | /* Found close quote. */ | |
5246 | quote_found = '\0'; | |
5247 | else if (*p == '\\' && p[1] == quote_found) | |
5248 | /* A backslash followed by the quote character | |
c5aa993b | 5249 | doesn't end the string. */ |
c906108c SS |
5250 | ++p; |
5251 | } | |
5252 | else if (*p == '\'' || *p == '"') | |
5253 | { | |
5254 | quote_found = *p; | |
5255 | quote_pos = p; | |
5256 | } | |
5257 | } | |
5258 | if (quote_found == '\'') | |
5259 | /* A string within single quotes can be a symbol, so complete on it. */ | |
5260 | sym_text = quote_pos + 1; | |
5261 | else if (quote_found == '"') | |
5262 | /* A double-quoted string is never a symbol, nor does it make sense | |
c5aa993b | 5263 | to complete it any other way. */ |
c94fdfd0 | 5264 | { |
49c4e619 | 5265 | return NULL; |
c94fdfd0 | 5266 | } |
c906108c SS |
5267 | else |
5268 | { | |
5269 | /* It is not a quoted string. Break it based on the characters | |
5270 | which are in symbols. */ | |
5271 | while (p > text) | |
5272 | { | |
95699ff0 | 5273 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0' |
f55ee35c | 5274 | || p[-1] == ':' || strchr (break_on, p[-1]) != NULL) |
c906108c SS |
5275 | --p; |
5276 | else | |
5277 | break; | |
5278 | } | |
5279 | sym_text = p; | |
5280 | } | |
5281 | } | |
5282 | ||
5283 | sym_text_len = strlen (sym_text); | |
5284 | ||
1976171a JK |
5285 | /* Prepare SYM_TEXT_LEN for compare_symbol_name. */ |
5286 | ||
5287 | if (current_language->la_language == language_cplus | |
5288 | || current_language->la_language == language_java | |
5289 | || current_language->la_language == language_fortran) | |
5290 | { | |
5291 | /* These languages may have parameters entered by user but they are never | |
5292 | present in the partial symbol tables. */ | |
5293 | ||
5294 | const char *cs = memchr (sym_text, '(', sym_text_len); | |
5295 | ||
5296 | if (cs) | |
5297 | sym_text_len = cs - sym_text; | |
5298 | } | |
5299 | gdb_assert (sym_text[sym_text_len] == '\0' || sym_text[sym_text_len] == '('); | |
5300 | ||
49c4e619 | 5301 | return_val = NULL; |
821296b7 | 5302 | back_to = make_cleanup (do_free_completion_list, &return_val); |
c906108c | 5303 | |
ccefe4c4 TT |
5304 | datum.sym_text = sym_text; |
5305 | datum.sym_text_len = sym_text_len; | |
5306 | datum.text = text; | |
5307 | datum.word = word; | |
5308 | ||
c906108c | 5309 | /* Look through the partial symtabs for all symbols which begin |
7b08b9eb JK |
5310 | by matching SYM_TEXT. Expand all CUs that you find to the list. |
5311 | The real names will get added by COMPLETION_LIST_ADD_SYMBOL below. */ | |
276d885b GB |
5312 | expand_symtabs_matching (NULL, symbol_completion_matcher, NULL, |
5313 | ALL_DOMAIN, &datum); | |
c906108c SS |
5314 | |
5315 | /* At this point scan through the misc symbol vectors and add each | |
5316 | symbol you find to the list. Eventually we want to ignore | |
5317 | anything that isn't a text symbol (everything else will be | |
5318 | handled by the psymtab code above). */ | |
5319 | ||
2f68a895 TT |
5320 | if (code == TYPE_CODE_UNDEF) |
5321 | { | |
5322 | ALL_MSYMBOLS (objfile, msymbol) | |
5323 | { | |
5324 | QUIT; | |
efd66ac6 TT |
5325 | MCOMPLETION_LIST_ADD_SYMBOL (msymbol, sym_text, sym_text_len, text, |
5326 | word); | |
9af17804 | 5327 | |
2f68a895 TT |
5328 | completion_list_objc_symbol (msymbol, sym_text, sym_text_len, text, |
5329 | word); | |
5330 | } | |
5331 | } | |
c906108c SS |
5332 | |
5333 | /* Search upwards from currently selected frame (so that we can | |
edb3359d DJ |
5334 | complete on local vars). Also catch fields of types defined in |
5335 | this places which match our text string. Only complete on types | |
c378eb4e | 5336 | visible from current context. */ |
edb3359d DJ |
5337 | |
5338 | b = get_selected_block (0); | |
5339 | surrounding_static_block = block_static_block (b); | |
5340 | surrounding_global_block = block_global_block (b); | |
5341 | if (surrounding_static_block != NULL) | |
5342 | while (b != surrounding_static_block) | |
5343 | { | |
5344 | QUIT; | |
c906108c | 5345 | |
edb3359d DJ |
5346 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
5347 | { | |
2f68a895 TT |
5348 | if (code == TYPE_CODE_UNDEF) |
5349 | { | |
5350 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, | |
5351 | word); | |
5352 | completion_list_add_fields (sym, sym_text, sym_text_len, text, | |
5353 | word); | |
5354 | } | |
5355 | else if (SYMBOL_DOMAIN (sym) == STRUCT_DOMAIN | |
5356 | && TYPE_CODE (SYMBOL_TYPE (sym)) == code) | |
5357 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, | |
5358 | word); | |
edb3359d | 5359 | } |
c5aa993b | 5360 | |
edb3359d DJ |
5361 | /* Stop when we encounter an enclosing function. Do not stop for |
5362 | non-inlined functions - the locals of the enclosing function | |
5363 | are in scope for a nested function. */ | |
5364 | if (BLOCK_FUNCTION (b) != NULL && block_inlined_p (b)) | |
5365 | break; | |
5366 | b = BLOCK_SUPERBLOCK (b); | |
5367 | } | |
c906108c | 5368 | |
edb3359d | 5369 | /* Add fields from the file's types; symbols will be added below. */ |
c906108c | 5370 | |
2f68a895 TT |
5371 | if (code == TYPE_CODE_UNDEF) |
5372 | { | |
5373 | if (surrounding_static_block != NULL) | |
5374 | ALL_BLOCK_SYMBOLS (surrounding_static_block, iter, sym) | |
5375 | completion_list_add_fields (sym, sym_text, sym_text_len, text, word); | |
edb3359d | 5376 | |
2f68a895 TT |
5377 | if (surrounding_global_block != NULL) |
5378 | ALL_BLOCK_SYMBOLS (surrounding_global_block, iter, sym) | |
5379 | completion_list_add_fields (sym, sym_text, sym_text_len, text, word); | |
5380 | } | |
c906108c SS |
5381 | |
5382 | /* Go through the symtabs and check the externs and statics for | |
5383 | symbols which match. */ | |
5384 | ||
43f3e411 | 5385 | ALL_COMPUNITS (objfile, cust) |
c5aa993b JM |
5386 | { |
5387 | QUIT; | |
43f3e411 | 5388 | b = BLOCKVECTOR_BLOCK (COMPUNIT_BLOCKVECTOR (cust), GLOBAL_BLOCK); |
de4f826b | 5389 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c5aa993b | 5390 | { |
2f68a895 TT |
5391 | if (code == TYPE_CODE_UNDEF |
5392 | || (SYMBOL_DOMAIN (sym) == STRUCT_DOMAIN | |
5393 | && TYPE_CODE (SYMBOL_TYPE (sym)) == code)) | |
5394 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); | |
c5aa993b JM |
5395 | } |
5396 | } | |
c906108c | 5397 | |
43f3e411 | 5398 | ALL_COMPUNITS (objfile, cust) |
c5aa993b JM |
5399 | { |
5400 | QUIT; | |
43f3e411 | 5401 | b = BLOCKVECTOR_BLOCK (COMPUNIT_BLOCKVECTOR (cust), STATIC_BLOCK); |
de4f826b | 5402 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c5aa993b | 5403 | { |
2f68a895 TT |
5404 | if (code == TYPE_CODE_UNDEF |
5405 | || (SYMBOL_DOMAIN (sym) == STRUCT_DOMAIN | |
5406 | && TYPE_CODE (SYMBOL_TYPE (sym)) == code)) | |
5407 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); | |
c5aa993b JM |
5408 | } |
5409 | } | |
c906108c | 5410 | |
2f68a895 TT |
5411 | /* Skip macros if we are completing a struct tag -- arguable but |
5412 | usually what is expected. */ | |
5413 | if (current_language->la_macro_expansion == macro_expansion_c | |
5414 | && code == TYPE_CODE_UNDEF) | |
9a044a89 TT |
5415 | { |
5416 | struct macro_scope *scope; | |
9a044a89 TT |
5417 | |
5418 | /* Add any macros visible in the default scope. Note that this | |
5419 | may yield the occasional wrong result, because an expression | |
5420 | might be evaluated in a scope other than the default. For | |
5421 | example, if the user types "break file:line if <TAB>", the | |
5422 | resulting expression will be evaluated at "file:line" -- but | |
5423 | at there does not seem to be a way to detect this at | |
5424 | completion time. */ | |
5425 | scope = default_macro_scope (); | |
5426 | if (scope) | |
5427 | { | |
5428 | macro_for_each_in_scope (scope->file, scope->line, | |
5429 | add_macro_name, &datum); | |
5430 | xfree (scope); | |
5431 | } | |
5432 | ||
5433 | /* User-defined macros are always visible. */ | |
5434 | macro_for_each (macro_user_macros, add_macro_name, &datum); | |
5435 | } | |
5436 | ||
821296b7 | 5437 | discard_cleanups (back_to); |
c906108c SS |
5438 | return (return_val); |
5439 | } | |
5440 | ||
49c4e619 | 5441 | VEC (char_ptr) * |
6f937416 | 5442 | default_make_symbol_completion_list (const char *text, const char *word, |
2f68a895 | 5443 | enum type_code code) |
f55ee35c | 5444 | { |
2f68a895 | 5445 | return default_make_symbol_completion_list_break_on (text, word, "", code); |
f55ee35c JK |
5446 | } |
5447 | ||
49c4e619 TT |
5448 | /* Return a vector of all symbols (regardless of class) which begin by |
5449 | matching TEXT. If the answer is no symbols, then the return value | |
5450 | is NULL. */ | |
41d27058 | 5451 | |
49c4e619 | 5452 | VEC (char_ptr) * |
6f937416 | 5453 | make_symbol_completion_list (const char *text, const char *word) |
41d27058 | 5454 | { |
2f68a895 TT |
5455 | return current_language->la_make_symbol_completion_list (text, word, |
5456 | TYPE_CODE_UNDEF); | |
5457 | } | |
5458 | ||
5459 | /* Like make_symbol_completion_list, but only return STRUCT_DOMAIN | |
5460 | symbols whose type code is CODE. */ | |
5461 | ||
5462 | VEC (char_ptr) * | |
6f937416 PA |
5463 | make_symbol_completion_type (const char *text, const char *word, |
5464 | enum type_code code) | |
2f68a895 TT |
5465 | { |
5466 | gdb_assert (code == TYPE_CODE_UNION | |
5467 | || code == TYPE_CODE_STRUCT | |
2f68a895 TT |
5468 | || code == TYPE_CODE_ENUM); |
5469 | return current_language->la_make_symbol_completion_list (text, word, code); | |
41d27058 JB |
5470 | } |
5471 | ||
d8906c6f TJB |
5472 | /* Like make_symbol_completion_list, but suitable for use as a |
5473 | completion function. */ | |
5474 | ||
49c4e619 | 5475 | VEC (char_ptr) * |
d8906c6f | 5476 | make_symbol_completion_list_fn (struct cmd_list_element *ignore, |
6f937416 | 5477 | const char *text, const char *word) |
d8906c6f TJB |
5478 | { |
5479 | return make_symbol_completion_list (text, word); | |
5480 | } | |
5481 | ||
c94fdfd0 EZ |
5482 | /* Like make_symbol_completion_list, but returns a list of symbols |
5483 | defined in a source file FILE. */ | |
5484 | ||
49c4e619 | 5485 | VEC (char_ptr) * |
6f937416 PA |
5486 | make_file_symbol_completion_list (const char *text, const char *word, |
5487 | const char *srcfile) | |
c94fdfd0 | 5488 | { |
52f0bd74 AC |
5489 | struct symbol *sym; |
5490 | struct symtab *s; | |
5491 | struct block *b; | |
8157b174 | 5492 | struct block_iterator iter; |
c94fdfd0 | 5493 | /* The symbol we are completing on. Points in same buffer as text. */ |
6f937416 | 5494 | const char *sym_text; |
c94fdfd0 EZ |
5495 | /* Length of sym_text. */ |
5496 | int sym_text_len; | |
5497 | ||
5498 | /* Now look for the symbol we are supposed to complete on. | |
5499 | FIXME: This should be language-specific. */ | |
5500 | { | |
6f937416 | 5501 | const char *p; |
c94fdfd0 | 5502 | char quote_found; |
6f937416 | 5503 | const char *quote_pos = NULL; |
c94fdfd0 EZ |
5504 | |
5505 | /* First see if this is a quoted string. */ | |
5506 | quote_found = '\0'; | |
5507 | for (p = text; *p != '\0'; ++p) | |
5508 | { | |
5509 | if (quote_found != '\0') | |
5510 | { | |
5511 | if (*p == quote_found) | |
5512 | /* Found close quote. */ | |
5513 | quote_found = '\0'; | |
5514 | else if (*p == '\\' && p[1] == quote_found) | |
5515 | /* A backslash followed by the quote character | |
5516 | doesn't end the string. */ | |
5517 | ++p; | |
5518 | } | |
5519 | else if (*p == '\'' || *p == '"') | |
5520 | { | |
5521 | quote_found = *p; | |
5522 | quote_pos = p; | |
5523 | } | |
5524 | } | |
5525 | if (quote_found == '\'') | |
5526 | /* A string within single quotes can be a symbol, so complete on it. */ | |
5527 | sym_text = quote_pos + 1; | |
5528 | else if (quote_found == '"') | |
5529 | /* A double-quoted string is never a symbol, nor does it make sense | |
5530 | to complete it any other way. */ | |
5531 | { | |
49c4e619 | 5532 | return NULL; |
c94fdfd0 EZ |
5533 | } |
5534 | else | |
5535 | { | |
69636828 AF |
5536 | /* Not a quoted string. */ |
5537 | sym_text = language_search_unquoted_string (text, p); | |
c94fdfd0 EZ |
5538 | } |
5539 | } | |
5540 | ||
5541 | sym_text_len = strlen (sym_text); | |
5542 | ||
49c4e619 | 5543 | return_val = NULL; |
c94fdfd0 EZ |
5544 | |
5545 | /* Find the symtab for SRCFILE (this loads it if it was not yet read | |
5546 | in). */ | |
5547 | s = lookup_symtab (srcfile); | |
5548 | if (s == NULL) | |
5549 | { | |
5550 | /* Maybe they typed the file with leading directories, while the | |
5551 | symbol tables record only its basename. */ | |
31889e00 | 5552 | const char *tail = lbasename (srcfile); |
c94fdfd0 EZ |
5553 | |
5554 | if (tail > srcfile) | |
5555 | s = lookup_symtab (tail); | |
5556 | } | |
5557 | ||
5558 | /* If we have no symtab for that file, return an empty list. */ | |
5559 | if (s == NULL) | |
5560 | return (return_val); | |
5561 | ||
5562 | /* Go through this symtab and check the externs and statics for | |
5563 | symbols which match. */ | |
5564 | ||
439247b6 | 5565 | b = BLOCKVECTOR_BLOCK (SYMTAB_BLOCKVECTOR (s), GLOBAL_BLOCK); |
de4f826b | 5566 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c94fdfd0 | 5567 | { |
c94fdfd0 EZ |
5568 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
5569 | } | |
5570 | ||
439247b6 | 5571 | b = BLOCKVECTOR_BLOCK (SYMTAB_BLOCKVECTOR (s), STATIC_BLOCK); |
de4f826b | 5572 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c94fdfd0 | 5573 | { |
c94fdfd0 EZ |
5574 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
5575 | } | |
5576 | ||
5577 | return (return_val); | |
5578 | } | |
5579 | ||
5580 | /* A helper function for make_source_files_completion_list. It adds | |
5581 | another file name to a list of possible completions, growing the | |
5582 | list as necessary. */ | |
5583 | ||
5584 | static void | |
6f937416 | 5585 | add_filename_to_list (const char *fname, const char *text, const char *word, |
49c4e619 | 5586 | VEC (char_ptr) **list) |
c94fdfd0 EZ |
5587 | { |
5588 | char *new; | |
5589 | size_t fnlen = strlen (fname); | |
5590 | ||
c94fdfd0 EZ |
5591 | if (word == text) |
5592 | { | |
5593 | /* Return exactly fname. */ | |
5594 | new = xmalloc (fnlen + 5); | |
5595 | strcpy (new, fname); | |
5596 | } | |
5597 | else if (word > text) | |
5598 | { | |
5599 | /* Return some portion of fname. */ | |
5600 | new = xmalloc (fnlen + 5); | |
5601 | strcpy (new, fname + (word - text)); | |
5602 | } | |
5603 | else | |
5604 | { | |
5605 | /* Return some of TEXT plus fname. */ | |
5606 | new = xmalloc (fnlen + (text - word) + 5); | |
5607 | strncpy (new, word, text - word); | |
5608 | new[text - word] = '\0'; | |
5609 | strcat (new, fname); | |
5610 | } | |
49c4e619 | 5611 | VEC_safe_push (char_ptr, *list, new); |
c94fdfd0 EZ |
5612 | } |
5613 | ||
5614 | static int | |
5615 | not_interesting_fname (const char *fname) | |
5616 | { | |
5617 | static const char *illegal_aliens[] = { | |
5618 | "_globals_", /* inserted by coff_symtab_read */ | |
5619 | NULL | |
5620 | }; | |
5621 | int i; | |
5622 | ||
5623 | for (i = 0; illegal_aliens[i]; i++) | |
5624 | { | |
0ba1096a | 5625 | if (filename_cmp (fname, illegal_aliens[i]) == 0) |
c94fdfd0 EZ |
5626 | return 1; |
5627 | } | |
5628 | return 0; | |
5629 | } | |
5630 | ||
ccefe4c4 TT |
5631 | /* An object of this type is passed as the user_data argument to |
5632 | map_partial_symbol_filenames. */ | |
5633 | struct add_partial_filename_data | |
5634 | { | |
9fdc877b | 5635 | struct filename_seen_cache *filename_seen_cache; |
6f937416 PA |
5636 | const char *text; |
5637 | const char *word; | |
ccefe4c4 | 5638 | int text_len; |
49c4e619 | 5639 | VEC (char_ptr) **list; |
ccefe4c4 TT |
5640 | }; |
5641 | ||
5642 | /* A callback for map_partial_symbol_filenames. */ | |
eca864fe | 5643 | |
ccefe4c4 | 5644 | static void |
2837d59e | 5645 | maybe_add_partial_symtab_filename (const char *filename, const char *fullname, |
ccefe4c4 TT |
5646 | void *user_data) |
5647 | { | |
5648 | struct add_partial_filename_data *data = user_data; | |
5649 | ||
5650 | if (not_interesting_fname (filename)) | |
5651 | return; | |
9fdc877b | 5652 | if (!filename_seen (data->filename_seen_cache, filename, 1) |
0ba1096a | 5653 | && filename_ncmp (filename, data->text, data->text_len) == 0) |
ccefe4c4 TT |
5654 | { |
5655 | /* This file matches for a completion; add it to the | |
5656 | current list of matches. */ | |
49c4e619 | 5657 | add_filename_to_list (filename, data->text, data->word, data->list); |
ccefe4c4 TT |
5658 | } |
5659 | else | |
5660 | { | |
5661 | const char *base_name = lbasename (filename); | |
433759f7 | 5662 | |
ccefe4c4 | 5663 | if (base_name != filename |
9fdc877b | 5664 | && !filename_seen (data->filename_seen_cache, base_name, 1) |
0ba1096a | 5665 | && filename_ncmp (base_name, data->text, data->text_len) == 0) |
49c4e619 | 5666 | add_filename_to_list (base_name, data->text, data->word, data->list); |
ccefe4c4 TT |
5667 | } |
5668 | } | |
5669 | ||
49c4e619 TT |
5670 | /* Return a vector of all source files whose names begin with matching |
5671 | TEXT. The file names are looked up in the symbol tables of this | |
5672 | program. If the answer is no matchess, then the return value is | |
5673 | NULL. */ | |
c94fdfd0 | 5674 | |
49c4e619 | 5675 | VEC (char_ptr) * |
6f937416 | 5676 | make_source_files_completion_list (const char *text, const char *word) |
c94fdfd0 | 5677 | { |
43f3e411 | 5678 | struct compunit_symtab *cu; |
52f0bd74 | 5679 | struct symtab *s; |
52f0bd74 | 5680 | struct objfile *objfile; |
c94fdfd0 | 5681 | size_t text_len = strlen (text); |
49c4e619 | 5682 | VEC (char_ptr) *list = NULL; |
31889e00 | 5683 | const char *base_name; |
ccefe4c4 | 5684 | struct add_partial_filename_data datum; |
9fdc877b DE |
5685 | struct filename_seen_cache *filename_seen_cache; |
5686 | struct cleanup *back_to, *cache_cleanup; | |
c94fdfd0 | 5687 | |
c94fdfd0 EZ |
5688 | if (!have_full_symbols () && !have_partial_symbols ()) |
5689 | return list; | |
5690 | ||
821296b7 SA |
5691 | back_to = make_cleanup (do_free_completion_list, &list); |
5692 | ||
9fdc877b DE |
5693 | filename_seen_cache = create_filename_seen_cache (); |
5694 | cache_cleanup = make_cleanup (delete_filename_seen_cache, | |
5695 | filename_seen_cache); | |
5696 | ||
43f3e411 | 5697 | ALL_FILETABS (objfile, cu, s) |
c94fdfd0 EZ |
5698 | { |
5699 | if (not_interesting_fname (s->filename)) | |
5700 | continue; | |
9fdc877b | 5701 | if (!filename_seen (filename_seen_cache, s->filename, 1) |
0ba1096a | 5702 | && filename_ncmp (s->filename, text, text_len) == 0) |
c94fdfd0 EZ |
5703 | { |
5704 | /* This file matches for a completion; add it to the current | |
5705 | list of matches. */ | |
49c4e619 | 5706 | add_filename_to_list (s->filename, text, word, &list); |
c94fdfd0 EZ |
5707 | } |
5708 | else | |
5709 | { | |
5710 | /* NOTE: We allow the user to type a base name when the | |
5711 | debug info records leading directories, but not the other | |
5712 | way around. This is what subroutines of breakpoint | |
5713 | command do when they parse file names. */ | |
31889e00 | 5714 | base_name = lbasename (s->filename); |
c94fdfd0 | 5715 | if (base_name != s->filename |
9fdc877b | 5716 | && !filename_seen (filename_seen_cache, base_name, 1) |
0ba1096a | 5717 | && filename_ncmp (base_name, text, text_len) == 0) |
49c4e619 | 5718 | add_filename_to_list (base_name, text, word, &list); |
c94fdfd0 EZ |
5719 | } |
5720 | } | |
5721 | ||
9fdc877b | 5722 | datum.filename_seen_cache = filename_seen_cache; |
ccefe4c4 TT |
5723 | datum.text = text; |
5724 | datum.word = word; | |
5725 | datum.text_len = text_len; | |
5726 | datum.list = &list; | |
bb4142cf DE |
5727 | map_symbol_filenames (maybe_add_partial_symtab_filename, &datum, |
5728 | 0 /*need_fullname*/); | |
9fdc877b DE |
5729 | |
5730 | do_cleanups (cache_cleanup); | |
821296b7 | 5731 | discard_cleanups (back_to); |
c94fdfd0 EZ |
5732 | |
5733 | return list; | |
5734 | } | |
c906108c | 5735 | \f |
51cc5b07 | 5736 | /* Track MAIN */ |
32ac0d11 TT |
5737 | |
5738 | /* Return the "main_info" object for the current program space. If | |
5739 | the object has not yet been created, create it and fill in some | |
5740 | default values. */ | |
5741 | ||
5742 | static struct main_info * | |
5743 | get_main_info (void) | |
5744 | { | |
5745 | struct main_info *info = program_space_data (current_program_space, | |
5746 | main_progspace_key); | |
5747 | ||
5748 | if (info == NULL) | |
5749 | { | |
3d548a53 TT |
5750 | /* It may seem strange to store the main name in the progspace |
5751 | and also in whatever objfile happens to see a main name in | |
5752 | its debug info. The reason for this is mainly historical: | |
5753 | gdb returned "main" as the name even if no function named | |
5754 | "main" was defined the program; and this approach lets us | |
5755 | keep compatibility. */ | |
32ac0d11 TT |
5756 | info = XCNEW (struct main_info); |
5757 | info->language_of_main = language_unknown; | |
5758 | set_program_space_data (current_program_space, main_progspace_key, | |
5759 | info); | |
5760 | } | |
5761 | ||
5762 | return info; | |
5763 | } | |
5764 | ||
5765 | /* A cleanup to destroy a struct main_info when a progspace is | |
5766 | destroyed. */ | |
5767 | ||
5768 | static void | |
5769 | main_info_cleanup (struct program_space *pspace, void *data) | |
5770 | { | |
5771 | struct main_info *info = data; | |
5772 | ||
5773 | if (info != NULL) | |
5774 | xfree (info->name_of_main); | |
5775 | xfree (info); | |
5776 | } | |
51cc5b07 | 5777 | |
3d548a53 | 5778 | static void |
9e6c82ad | 5779 | set_main_name (const char *name, enum language lang) |
51cc5b07 | 5780 | { |
32ac0d11 TT |
5781 | struct main_info *info = get_main_info (); |
5782 | ||
5783 | if (info->name_of_main != NULL) | |
51cc5b07 | 5784 | { |
32ac0d11 TT |
5785 | xfree (info->name_of_main); |
5786 | info->name_of_main = NULL; | |
5787 | info->language_of_main = language_unknown; | |
51cc5b07 AC |
5788 | } |
5789 | if (name != NULL) | |
5790 | { | |
32ac0d11 TT |
5791 | info->name_of_main = xstrdup (name); |
5792 | info->language_of_main = lang; | |
51cc5b07 AC |
5793 | } |
5794 | } | |
5795 | ||
ea53e89f JB |
5796 | /* Deduce the name of the main procedure, and set NAME_OF_MAIN |
5797 | accordingly. */ | |
5798 | ||
5799 | static void | |
5800 | find_main_name (void) | |
5801 | { | |
cd6c7346 | 5802 | const char *new_main_name; |
3d548a53 TT |
5803 | struct objfile *objfile; |
5804 | ||
5805 | /* First check the objfiles to see whether a debuginfo reader has | |
5806 | picked up the appropriate main name. Historically the main name | |
5807 | was found in a more or less random way; this approach instead | |
5808 | relies on the order of objfile creation -- which still isn't | |
5809 | guaranteed to get the correct answer, but is just probably more | |
5810 | accurate. */ | |
5811 | ALL_OBJFILES (objfile) | |
5812 | { | |
5813 | if (objfile->per_bfd->name_of_main != NULL) | |
5814 | { | |
5815 | set_main_name (objfile->per_bfd->name_of_main, | |
5816 | objfile->per_bfd->language_of_main); | |
5817 | return; | |
5818 | } | |
5819 | } | |
ea53e89f JB |
5820 | |
5821 | /* Try to see if the main procedure is in Ada. */ | |
5822 | /* FIXME: brobecker/2005-03-07: Another way of doing this would | |
5823 | be to add a new method in the language vector, and call this | |
5824 | method for each language until one of them returns a non-empty | |
5825 | name. This would allow us to remove this hard-coded call to | |
5826 | an Ada function. It is not clear that this is a better approach | |
5827 | at this point, because all methods need to be written in a way | |
c378eb4e | 5828 | such that false positives never be returned. For instance, it is |
ea53e89f JB |
5829 | important that a method does not return a wrong name for the main |
5830 | procedure if the main procedure is actually written in a different | |
5831 | language. It is easy to guaranty this with Ada, since we use a | |
5832 | special symbol generated only when the main in Ada to find the name | |
c378eb4e | 5833 | of the main procedure. It is difficult however to see how this can |
ea53e89f JB |
5834 | be guarantied for languages such as C, for instance. This suggests |
5835 | that order of call for these methods becomes important, which means | |
5836 | a more complicated approach. */ | |
5837 | new_main_name = ada_main_name (); | |
5838 | if (new_main_name != NULL) | |
9af17804 | 5839 | { |
9e6c82ad | 5840 | set_main_name (new_main_name, language_ada); |
ea53e89f JB |
5841 | return; |
5842 | } | |
5843 | ||
63778547 IB |
5844 | new_main_name = d_main_name (); |
5845 | if (new_main_name != NULL) | |
5846 | { | |
5847 | set_main_name (new_main_name, language_d); | |
5848 | return; | |
5849 | } | |
5850 | ||
a766d390 DE |
5851 | new_main_name = go_main_name (); |
5852 | if (new_main_name != NULL) | |
5853 | { | |
9e6c82ad | 5854 | set_main_name (new_main_name, language_go); |
a766d390 DE |
5855 | return; |
5856 | } | |
5857 | ||
cd6c7346 PM |
5858 | new_main_name = pascal_main_name (); |
5859 | if (new_main_name != NULL) | |
9af17804 | 5860 | { |
9e6c82ad | 5861 | set_main_name (new_main_name, language_pascal); |
cd6c7346 PM |
5862 | return; |
5863 | } | |
5864 | ||
ea53e89f JB |
5865 | /* The languages above didn't identify the name of the main procedure. |
5866 | Fallback to "main". */ | |
9e6c82ad | 5867 | set_main_name ("main", language_unknown); |
ea53e89f JB |
5868 | } |
5869 | ||
51cc5b07 AC |
5870 | char * |
5871 | main_name (void) | |
5872 | { | |
32ac0d11 TT |
5873 | struct main_info *info = get_main_info (); |
5874 | ||
5875 | if (info->name_of_main == NULL) | |
ea53e89f JB |
5876 | find_main_name (); |
5877 | ||
32ac0d11 | 5878 | return info->name_of_main; |
51cc5b07 AC |
5879 | } |
5880 | ||
9e6c82ad TT |
5881 | /* Return the language of the main function. If it is not known, |
5882 | return language_unknown. */ | |
5883 | ||
5884 | enum language | |
5885 | main_language (void) | |
5886 | { | |
32ac0d11 TT |
5887 | struct main_info *info = get_main_info (); |
5888 | ||
5889 | if (info->name_of_main == NULL) | |
5890 | find_main_name (); | |
5891 | ||
5892 | return info->language_of_main; | |
9e6c82ad TT |
5893 | } |
5894 | ||
ea53e89f JB |
5895 | /* Handle ``executable_changed'' events for the symtab module. */ |
5896 | ||
5897 | static void | |
781b42b0 | 5898 | symtab_observer_executable_changed (void) |
ea53e89f JB |
5899 | { |
5900 | /* NAME_OF_MAIN may no longer be the same, so reset it for now. */ | |
9e6c82ad | 5901 | set_main_name (NULL, language_unknown); |
ea53e89f | 5902 | } |
51cc5b07 | 5903 | |
a6c727b2 DJ |
5904 | /* Return 1 if the supplied producer string matches the ARM RealView |
5905 | compiler (armcc). */ | |
5906 | ||
5907 | int | |
5908 | producer_is_realview (const char *producer) | |
5909 | { | |
5910 | static const char *const arm_idents[] = { | |
5911 | "ARM C Compiler, ADS", | |
5912 | "Thumb C Compiler, ADS", | |
5913 | "ARM C++ Compiler, ADS", | |
5914 | "Thumb C++ Compiler, ADS", | |
5915 | "ARM/Thumb C/C++ Compiler, RVCT", | |
5916 | "ARM C/C++ Compiler, RVCT" | |
5917 | }; | |
5918 | int i; | |
5919 | ||
5920 | if (producer == NULL) | |
5921 | return 0; | |
5922 | ||
5923 | for (i = 0; i < ARRAY_SIZE (arm_idents); i++) | |
5924 | if (strncmp (producer, arm_idents[i], strlen (arm_idents[i])) == 0) | |
5925 | return 1; | |
5926 | ||
5927 | return 0; | |
5928 | } | |
ed0616c6 | 5929 | |
f1e6e072 TT |
5930 | \f |
5931 | ||
5932 | /* The next index to hand out in response to a registration request. */ | |
5933 | ||
5934 | static int next_aclass_value = LOC_FINAL_VALUE; | |
5935 | ||
5936 | /* The maximum number of "aclass" registrations we support. This is | |
5937 | constant for convenience. */ | |
5938 | #define MAX_SYMBOL_IMPLS (LOC_FINAL_VALUE + 10) | |
5939 | ||
5940 | /* The objects representing the various "aclass" values. The elements | |
5941 | from 0 up to LOC_FINAL_VALUE-1 represent themselves, and subsequent | |
5942 | elements are those registered at gdb initialization time. */ | |
5943 | ||
5944 | static struct symbol_impl symbol_impl[MAX_SYMBOL_IMPLS]; | |
5945 | ||
5946 | /* The globally visible pointer. This is separate from 'symbol_impl' | |
5947 | so that it can be const. */ | |
5948 | ||
5949 | const struct symbol_impl *symbol_impls = &symbol_impl[0]; | |
5950 | ||
5951 | /* Make sure we saved enough room in struct symbol. */ | |
5952 | ||
5953 | gdb_static_assert (MAX_SYMBOL_IMPLS <= (1 << SYMBOL_ACLASS_BITS)); | |
5954 | ||
5955 | /* Register a computed symbol type. ACLASS must be LOC_COMPUTED. OPS | |
5956 | is the ops vector associated with this index. This returns the new | |
5957 | index, which should be used as the aclass_index field for symbols | |
5958 | of this type. */ | |
5959 | ||
5960 | int | |
5961 | register_symbol_computed_impl (enum address_class aclass, | |
5962 | const struct symbol_computed_ops *ops) | |
5963 | { | |
5964 | int result = next_aclass_value++; | |
5965 | ||
5966 | gdb_assert (aclass == LOC_COMPUTED); | |
5967 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
5968 | symbol_impl[result].aclass = aclass; | |
5969 | symbol_impl[result].ops_computed = ops; | |
5970 | ||
24d6c2a0 TT |
5971 | /* Sanity check OPS. */ |
5972 | gdb_assert (ops != NULL); | |
5973 | gdb_assert (ops->tracepoint_var_ref != NULL); | |
5974 | gdb_assert (ops->describe_location != NULL); | |
5975 | gdb_assert (ops->read_needs_frame != NULL); | |
5976 | gdb_assert (ops->read_variable != NULL); | |
5977 | ||
f1e6e072 TT |
5978 | return result; |
5979 | } | |
5980 | ||
5981 | /* Register a function with frame base type. ACLASS must be LOC_BLOCK. | |
5982 | OPS is the ops vector associated with this index. This returns the | |
5983 | new index, which should be used as the aclass_index field for symbols | |
5984 | of this type. */ | |
5985 | ||
5986 | int | |
5987 | register_symbol_block_impl (enum address_class aclass, | |
5988 | const struct symbol_block_ops *ops) | |
5989 | { | |
5990 | int result = next_aclass_value++; | |
5991 | ||
5992 | gdb_assert (aclass == LOC_BLOCK); | |
5993 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
5994 | symbol_impl[result].aclass = aclass; | |
5995 | symbol_impl[result].ops_block = ops; | |
5996 | ||
5997 | /* Sanity check OPS. */ | |
5998 | gdb_assert (ops != NULL); | |
5999 | gdb_assert (ops->find_frame_base_location != NULL); | |
6000 | ||
6001 | return result; | |
6002 | } | |
6003 | ||
6004 | /* Register a register symbol type. ACLASS must be LOC_REGISTER or | |
6005 | LOC_REGPARM_ADDR. OPS is the register ops vector associated with | |
6006 | this index. This returns the new index, which should be used as | |
6007 | the aclass_index field for symbols of this type. */ | |
6008 | ||
6009 | int | |
6010 | register_symbol_register_impl (enum address_class aclass, | |
6011 | const struct symbol_register_ops *ops) | |
6012 | { | |
6013 | int result = next_aclass_value++; | |
6014 | ||
6015 | gdb_assert (aclass == LOC_REGISTER || aclass == LOC_REGPARM_ADDR); | |
6016 | gdb_assert (result < MAX_SYMBOL_IMPLS); | |
6017 | symbol_impl[result].aclass = aclass; | |
6018 | symbol_impl[result].ops_register = ops; | |
6019 | ||
6020 | return result; | |
6021 | } | |
6022 | ||
6023 | /* Initialize elements of 'symbol_impl' for the constants in enum | |
6024 | address_class. */ | |
6025 | ||
6026 | static void | |
6027 | initialize_ordinary_address_classes (void) | |
6028 | { | |
6029 | int i; | |
6030 | ||
6031 | for (i = 0; i < LOC_FINAL_VALUE; ++i) | |
6032 | symbol_impl[i].aclass = i; | |
6033 | } | |
6034 | ||
6035 | \f | |
6036 | ||
1994afbf DE |
6037 | /* Helper function to initialize the fields of an objfile-owned symbol. |
6038 | It assumed that *SYM is already all zeroes. */ | |
6039 | ||
6040 | static void | |
6041 | initialize_objfile_symbol_1 (struct symbol *sym) | |
6042 | { | |
6043 | SYMBOL_OBJFILE_OWNED (sym) = 1; | |
6044 | SYMBOL_SECTION (sym) = -1; | |
6045 | } | |
6046 | ||
6047 | /* Initialize the symbol SYM, and mark it as being owned by an objfile. */ | |
e623cf5d TT |
6048 | |
6049 | void | |
38bf1463 | 6050 | initialize_objfile_symbol (struct symbol *sym) |
e623cf5d TT |
6051 | { |
6052 | memset (sym, 0, sizeof (*sym)); | |
1994afbf | 6053 | initialize_objfile_symbol_1 (sym); |
e623cf5d TT |
6054 | } |
6055 | ||
6056 | /* Allocate and initialize a new 'struct symbol' on OBJFILE's | |
6057 | obstack. */ | |
6058 | ||
6059 | struct symbol * | |
6060 | allocate_symbol (struct objfile *objfile) | |
6061 | { | |
6062 | struct symbol *result; | |
6063 | ||
6064 | result = OBSTACK_ZALLOC (&objfile->objfile_obstack, struct symbol); | |
1994afbf | 6065 | initialize_objfile_symbol_1 (result); |
e623cf5d TT |
6066 | |
6067 | return result; | |
6068 | } | |
6069 | ||
6070 | /* Allocate and initialize a new 'struct template_symbol' on OBJFILE's | |
6071 | obstack. */ | |
6072 | ||
6073 | struct template_symbol * | |
6074 | allocate_template_symbol (struct objfile *objfile) | |
6075 | { | |
6076 | struct template_symbol *result; | |
6077 | ||
6078 | result = OBSTACK_ZALLOC (&objfile->objfile_obstack, struct template_symbol); | |
1994afbf | 6079 | initialize_objfile_symbol_1 (&result->base); |
e623cf5d TT |
6080 | |
6081 | return result; | |
6082 | } | |
6083 | ||
08be3fe3 DE |
6084 | /* See symtab.h. */ |
6085 | ||
6086 | struct objfile * | |
6087 | symbol_objfile (const struct symbol *symbol) | |
6088 | { | |
1994afbf DE |
6089 | gdb_assert (SYMBOL_OBJFILE_OWNED (symbol)); |
6090 | return SYMTAB_OBJFILE (symbol->owner.symtab); | |
08be3fe3 DE |
6091 | } |
6092 | ||
6093 | /* See symtab.h. */ | |
6094 | ||
6095 | struct gdbarch * | |
6096 | symbol_arch (const struct symbol *symbol) | |
6097 | { | |
1994afbf DE |
6098 | if (!SYMBOL_OBJFILE_OWNED (symbol)) |
6099 | return symbol->owner.arch; | |
6100 | return get_objfile_arch (SYMTAB_OBJFILE (symbol->owner.symtab)); | |
08be3fe3 DE |
6101 | } |
6102 | ||
6103 | /* See symtab.h. */ | |
6104 | ||
6105 | struct symtab * | |
6106 | symbol_symtab (const struct symbol *symbol) | |
6107 | { | |
1994afbf DE |
6108 | gdb_assert (SYMBOL_OBJFILE_OWNED (symbol)); |
6109 | return symbol->owner.symtab; | |
08be3fe3 DE |
6110 | } |
6111 | ||
6112 | /* See symtab.h. */ | |
6113 | ||
6114 | void | |
6115 | symbol_set_symtab (struct symbol *symbol, struct symtab *symtab) | |
6116 | { | |
1994afbf DE |
6117 | gdb_assert (SYMBOL_OBJFILE_OWNED (symbol)); |
6118 | symbol->owner.symtab = symtab; | |
08be3fe3 DE |
6119 | } |
6120 | ||
e623cf5d TT |
6121 | \f |
6122 | ||
c906108c | 6123 | void |
fba45db2 | 6124 | _initialize_symtab (void) |
c906108c | 6125 | { |
f1e6e072 TT |
6126 | initialize_ordinary_address_classes (); |
6127 | ||
32ac0d11 TT |
6128 | main_progspace_key |
6129 | = register_program_space_data_with_cleanup (NULL, main_info_cleanup); | |
6130 | ||
f57d2163 DE |
6131 | symbol_cache_key |
6132 | = register_program_space_data_with_cleanup (NULL, symbol_cache_cleanup); | |
6133 | ||
1bedd215 AC |
6134 | add_info ("variables", variables_info, _("\ |
6135 | All global and static variable names, or those matching REGEXP.")); | |
c906108c | 6136 | if (dbx_commands) |
1bedd215 AC |
6137 | add_com ("whereis", class_info, variables_info, _("\ |
6138 | All global and static variable names, or those matching REGEXP.")); | |
c906108c SS |
6139 | |
6140 | add_info ("functions", functions_info, | |
1bedd215 | 6141 | _("All function names, or those matching REGEXP.")); |
c906108c SS |
6142 | |
6143 | /* FIXME: This command has at least the following problems: | |
6144 | 1. It prints builtin types (in a very strange and confusing fashion). | |
6145 | 2. It doesn't print right, e.g. with | |
c5aa993b JM |
6146 | typedef struct foo *FOO |
6147 | type_print prints "FOO" when we want to make it (in this situation) | |
6148 | print "struct foo *". | |
c906108c SS |
6149 | I also think "ptype" or "whatis" is more likely to be useful (but if |
6150 | there is much disagreement "info types" can be fixed). */ | |
6151 | add_info ("types", types_info, | |
1bedd215 | 6152 | _("All type names, or those matching REGEXP.")); |
c906108c | 6153 | |
c906108c | 6154 | add_info ("sources", sources_info, |
1bedd215 | 6155 | _("Source files in the program.")); |
c906108c SS |
6156 | |
6157 | add_com ("rbreak", class_breakpoint, rbreak_command, | |
1bedd215 | 6158 | _("Set a breakpoint for all functions matching REGEXP.")); |
c906108c SS |
6159 | |
6160 | if (xdb_commands) | |
6161 | { | |
1bedd215 AC |
6162 | add_com ("lf", class_info, sources_info, |
6163 | _("Source files in the program")); | |
6164 | add_com ("lg", class_info, variables_info, _("\ | |
6165 | All global and static variable names, or those matching REGEXP.")); | |
c906108c SS |
6166 | } |
6167 | ||
717d2f5a JB |
6168 | add_setshow_enum_cmd ("multiple-symbols", no_class, |
6169 | multiple_symbols_modes, &multiple_symbols_mode, | |
6170 | _("\ | |
6171 | Set the debugger behavior when more than one symbol are possible matches\n\ | |
6172 | in an expression."), _("\ | |
6173 | Show how the debugger handles ambiguities in expressions."), _("\ | |
6174 | Valid values are \"ask\", \"all\", \"cancel\", and the default is \"all\"."), | |
6175 | NULL, NULL, &setlist, &showlist); | |
6176 | ||
c011a4f4 DE |
6177 | add_setshow_boolean_cmd ("basenames-may-differ", class_obscure, |
6178 | &basenames_may_differ, _("\ | |
6179 | Set whether a source file may have multiple base names."), _("\ | |
6180 | Show whether a source file may have multiple base names."), _("\ | |
6181 | (A \"base name\" is the name of a file with the directory part removed.\n\ | |
6182 | Example: The base name of \"/home/user/hello.c\" is \"hello.c\".)\n\ | |
6183 | If set, GDB will canonicalize file names (e.g., expand symlinks)\n\ | |
6184 | before comparing them. Canonicalization is an expensive operation,\n\ | |
6185 | but it allows the same file be known by more than one base name.\n\ | |
6186 | If not set (the default), all source files are assumed to have just\n\ | |
6187 | one base name, and gdb will do file name comparisons more efficiently."), | |
6188 | NULL, NULL, | |
6189 | &setlist, &showlist); | |
6190 | ||
db0fec5c DE |
6191 | add_setshow_zuinteger_cmd ("symtab-create", no_class, &symtab_create_debug, |
6192 | _("Set debugging of symbol table creation."), | |
6193 | _("Show debugging of symbol table creation."), _("\ | |
6194 | When enabled (non-zero), debugging messages are printed when building\n\ | |
6195 | symbol tables. A value of 1 (one) normally provides enough information.\n\ | |
6196 | A value greater than 1 provides more verbose information."), | |
6197 | NULL, | |
6198 | NULL, | |
6199 | &setdebuglist, &showdebuglist); | |
45cfd468 | 6200 | |
cc485e62 DE |
6201 | add_setshow_zuinteger_cmd ("symbol-lookup", no_class, &symbol_lookup_debug, |
6202 | _("\ | |
6203 | Set debugging of symbol lookup."), _("\ | |
6204 | Show debugging of symbol lookup."), _("\ | |
6205 | When enabled (non-zero), symbol lookups are logged."), | |
6206 | NULL, NULL, | |
6207 | &setdebuglist, &showdebuglist); | |
6208 | ||
f57d2163 DE |
6209 | add_setshow_zuinteger_cmd ("symbol-cache-size", no_class, |
6210 | &new_symbol_cache_size, | |
6211 | _("Set the size of the symbol cache."), | |
6212 | _("Show the size of the symbol cache."), _("\ | |
6213 | The size of the symbol cache.\n\ | |
6214 | If zero then the symbol cache is disabled."), | |
6215 | set_symbol_cache_size_handler, NULL, | |
6216 | &maintenance_set_cmdlist, | |
6217 | &maintenance_show_cmdlist); | |
6218 | ||
6219 | add_cmd ("symbol-cache", class_maintenance, maintenance_print_symbol_cache, | |
6220 | _("Dump the symbol cache for each program space."), | |
6221 | &maintenanceprintlist); | |
6222 | ||
6223 | add_cmd ("symbol-cache-statistics", class_maintenance, | |
6224 | maintenance_print_symbol_cache_statistics, | |
6225 | _("Print symbol cache statistics for each program space."), | |
6226 | &maintenanceprintlist); | |
6227 | ||
6228 | add_cmd ("flush-symbol-cache", class_maintenance, | |
6229 | maintenance_flush_symbol_cache, | |
6230 | _("Flush the symbol cache for each program space."), | |
6231 | &maintenancelist); | |
6232 | ||
ea53e89f | 6233 | observer_attach_executable_changed (symtab_observer_executable_changed); |
f57d2163 DE |
6234 | observer_attach_new_objfile (symtab_new_objfile_observer); |
6235 | observer_attach_free_objfile (symtab_free_objfile_observer); | |
c906108c | 6236 | } |