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Commit | Line | Data |
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c906108c | 1 | /* Symbol table lookup for the GNU debugger, GDB. |
8926118c | 2 | |
0b302171 | 3 | Copyright (C) 1986-2004, 2007-2012 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" |
c906108c | 43 | |
2de7ced7 DJ |
44 | #include "hashtab.h" |
45 | ||
04ea0df1 | 46 | #include "gdb_obstack.h" |
fe898f56 | 47 | #include "block.h" |
de4f826b | 48 | #include "dictionary.h" |
c906108c SS |
49 | |
50 | #include <sys/types.h> | |
51 | #include <fcntl.h> | |
52 | #include "gdb_string.h" | |
53 | #include "gdb_stat.h" | |
54 | #include <ctype.h> | |
015a42b4 | 55 | #include "cp-abi.h" |
71c25dea | 56 | #include "cp-support.h" |
ea53e89f | 57 | #include "observer.h" |
94277a38 | 58 | #include "gdb_assert.h" |
3a40aaa0 | 59 | #include "solist.h" |
9a044a89 TT |
60 | #include "macrotab.h" |
61 | #include "macroscope.h" | |
c906108c | 62 | |
ccefe4c4 | 63 | #include "psymtab.h" |
270140bd | 64 | #include "parser-defs.h" |
ccefe4c4 | 65 | |
c906108c SS |
66 | /* Prototypes for local functions */ |
67 | ||
a14ed312 | 68 | static void rbreak_command (char *, int); |
c906108c | 69 | |
a14ed312 | 70 | static void types_info (char *, int); |
c906108c | 71 | |
a14ed312 | 72 | static void functions_info (char *, int); |
c906108c | 73 | |
a14ed312 | 74 | static void variables_info (char *, int); |
c906108c | 75 | |
a14ed312 | 76 | static void sources_info (char *, int); |
c906108c | 77 | |
f8eba3c6 | 78 | static int find_line_common (struct linetable *, int, int *, int); |
c906108c | 79 | |
3121eff0 | 80 | static struct symbol *lookup_symbol_aux (const char *name, |
3121eff0 | 81 | const struct block *block, |
176620f1 | 82 | const domain_enum domain, |
53c5240f | 83 | enum language language, |
1993b719 | 84 | struct field_of_this_result *is_a_field_of_this); |
fba7f19c | 85 | |
e4051eeb DC |
86 | static |
87 | struct symbol *lookup_symbol_aux_local (const char *name, | |
e4051eeb | 88 | const struct block *block, |
13387711 SW |
89 | const domain_enum domain, |
90 | enum language language); | |
8155455b DC |
91 | |
92 | static | |
93 | struct symbol *lookup_symbol_aux_symtabs (int block_index, | |
94 | const char *name, | |
67ff19f7 | 95 | const domain_enum domain); |
8155455b DC |
96 | |
97 | static | |
ccefe4c4 TT |
98 | struct symbol *lookup_symbol_aux_quick (struct objfile *objfile, |
99 | int block_index, | |
100 | const char *name, | |
101 | const domain_enum domain); | |
c906108c | 102 | |
a14ed312 | 103 | static void print_msymbol_info (struct minimal_symbol *); |
c906108c | 104 | |
a14ed312 | 105 | void _initialize_symtab (void); |
c906108c SS |
106 | |
107 | /* */ | |
108 | ||
45cfd468 DE |
109 | /* When non-zero, print debugging messages related to symtab creation. */ |
110 | int symtab_create_debug = 0; | |
111 | ||
c011a4f4 DE |
112 | /* Non-zero if a file may be known by two different basenames. |
113 | This is the uncommon case, and significantly slows down gdb. | |
114 | Default set to "off" to not slow down the common case. */ | |
115 | int basenames_may_differ = 0; | |
116 | ||
717d2f5a JB |
117 | /* Allow the user to configure the debugger behavior with respect |
118 | to multiple-choice menus when more than one symbol matches during | |
119 | a symbol lookup. */ | |
120 | ||
7fc830e2 MK |
121 | const char multiple_symbols_ask[] = "ask"; |
122 | const char multiple_symbols_all[] = "all"; | |
123 | const char multiple_symbols_cancel[] = "cancel"; | |
40478521 | 124 | static const char *const multiple_symbols_modes[] = |
717d2f5a JB |
125 | { |
126 | multiple_symbols_ask, | |
127 | multiple_symbols_all, | |
128 | multiple_symbols_cancel, | |
129 | NULL | |
130 | }; | |
131 | static const char *multiple_symbols_mode = multiple_symbols_all; | |
132 | ||
133 | /* Read-only accessor to AUTO_SELECT_MODE. */ | |
134 | ||
135 | const char * | |
136 | multiple_symbols_select_mode (void) | |
137 | { | |
138 | return multiple_symbols_mode; | |
139 | } | |
140 | ||
c906108c | 141 | /* Block in which the most recently searched-for symbol was found. |
9af17804 | 142 | Might be better to make this a parameter to lookup_symbol and |
c378eb4e | 143 | value_of_this. */ |
c906108c SS |
144 | |
145 | const struct block *block_found; | |
146 | ||
4aac40c8 TT |
147 | /* See whether FILENAME matches SEARCH_NAME using the rule that we |
148 | advertise to the user. (The manual's description of linespecs | |
b57a636e JK |
149 | describes what we advertise). We assume that SEARCH_NAME is |
150 | a relative path. Returns true if they match, false otherwise. */ | |
4aac40c8 TT |
151 | |
152 | int | |
b57a636e | 153 | compare_filenames_for_search (const char *filename, const char *search_name) |
4aac40c8 TT |
154 | { |
155 | int len = strlen (filename); | |
b57a636e | 156 | size_t search_len = strlen (search_name); |
4aac40c8 TT |
157 | |
158 | if (len < search_len) | |
159 | return 0; | |
160 | ||
161 | /* The tail of FILENAME must match. */ | |
162 | if (FILENAME_CMP (filename + len - search_len, search_name) != 0) | |
163 | return 0; | |
164 | ||
165 | /* Either the names must completely match, or the character | |
166 | preceding the trailing SEARCH_NAME segment of FILENAME must be a | |
167 | directory separator. */ | |
168 | return (len == search_len | |
169 | || IS_DIR_SEPARATOR (filename[len - search_len - 1]) | |
170 | || (HAS_DRIVE_SPEC (filename) | |
171 | && STRIP_DRIVE_SPEC (filename) == &filename[len - search_len])); | |
172 | } | |
173 | ||
f8eba3c6 TT |
174 | /* Check for a symtab of a specific name by searching some symtabs. |
175 | This is a helper function for callbacks of iterate_over_symtabs. | |
c906108c | 176 | |
f8eba3c6 TT |
177 | The return value, NAME, FULL_PATH, REAL_PATH, CALLBACK, and DATA |
178 | are identical to the `map_symtabs_matching_filename' method of | |
179 | quick_symbol_functions. | |
180 | ||
181 | FIRST and AFTER_LAST indicate the range of symtabs to search. | |
182 | AFTER_LAST is one past the last symtab to search; NULL means to | |
183 | search until the end of the list. */ | |
184 | ||
185 | int | |
186 | iterate_over_some_symtabs (const char *name, | |
187 | const char *full_path, | |
188 | const char *real_path, | |
189 | int (*callback) (struct symtab *symtab, | |
190 | void *data), | |
191 | void *data, | |
192 | struct symtab *first, | |
193 | struct symtab *after_last) | |
c906108c | 194 | { |
ccefe4c4 | 195 | struct symtab *s = NULL; |
c011a4f4 | 196 | const char* base_name = lbasename (name); |
4aac40c8 | 197 | int is_abs = IS_ABSOLUTE_PATH (name); |
1f84b619 | 198 | |
f8eba3c6 | 199 | for (s = first; s != NULL && s != after_last; s = s->next) |
f079a2e5 | 200 | { |
4aac40c8 | 201 | /* Exact match is always ok. */ |
f8eba3c6 TT |
202 | if (FILENAME_CMP (name, s->filename) == 0) |
203 | { | |
204 | if (callback (s, data)) | |
205 | return 1; | |
206 | } | |
9af17804 | 207 | |
b57a636e | 208 | if (!is_abs && compare_filenames_for_search (s->filename, name)) |
4aac40c8 TT |
209 | { |
210 | if (callback (s, data)) | |
211 | return 1; | |
212 | } | |
213 | ||
c011a4f4 DE |
214 | /* Before we invoke realpath, which can get expensive when many |
215 | files are involved, do a quick comparison of the basenames. */ | |
216 | if (! basenames_may_differ | |
217 | && FILENAME_CMP (base_name, lbasename (s->filename)) != 0) | |
218 | continue; | |
219 | ||
58d370e0 TT |
220 | /* If the user gave us an absolute path, try to find the file in |
221 | this symtab and use its absolute path. */ | |
9af17804 | 222 | |
f079a2e5 JB |
223 | if (full_path != NULL) |
224 | { | |
09bcec80 | 225 | const char *fp = symtab_to_fullname (s); |
433759f7 | 226 | |
f35a17b5 | 227 | if (FILENAME_CMP (full_path, fp) == 0) |
09bcec80 | 228 | { |
f8eba3c6 TT |
229 | if (callback (s, data)) |
230 | return 1; | |
09bcec80 | 231 | } |
4aac40c8 | 232 | |
f35a17b5 | 233 | if (!is_abs && compare_filenames_for_search (fp, name)) |
4aac40c8 TT |
234 | { |
235 | if (callback (s, data)) | |
236 | return 1; | |
237 | } | |
f079a2e5 JB |
238 | } |
239 | ||
58d370e0 TT |
240 | if (real_path != NULL) |
241 | { | |
0b0865da | 242 | const char *fullname = symtab_to_fullname (s); |
f35a17b5 | 243 | char *rp = gdb_realpath (fullname); |
433759f7 | 244 | |
f35a17b5 JK |
245 | make_cleanup (xfree, rp); |
246 | if (FILENAME_CMP (real_path, rp) == 0) | |
247 | { | |
248 | if (callback (s, data)) | |
249 | return 1; | |
250 | } | |
4aac40c8 | 251 | |
f35a17b5 JK |
252 | if (!is_abs && compare_filenames_for_search (rp, name)) |
253 | { | |
254 | if (callback (s, data)) | |
255 | return 1; | |
256 | } | |
58d370e0 | 257 | } |
f8eba3c6 | 258 | } |
58d370e0 | 259 | |
f8eba3c6 TT |
260 | return 0; |
261 | } | |
262 | ||
263 | /* Check for a symtab of a specific name; first in symtabs, then in | |
264 | psymtabs. *If* there is no '/' in the name, a match after a '/' | |
265 | in the symtab filename will also work. | |
266 | ||
267 | Calls CALLBACK with each symtab that is found and with the supplied | |
268 | DATA. If CALLBACK returns true, the search stops. */ | |
269 | ||
270 | void | |
271 | iterate_over_symtabs (const char *name, | |
272 | int (*callback) (struct symtab *symtab, | |
273 | void *data), | |
274 | void *data) | |
275 | { | |
276 | struct symtab *s = NULL; | |
277 | struct objfile *objfile; | |
278 | char *real_path = NULL; | |
279 | char *full_path = NULL; | |
280 | struct cleanup *cleanups = make_cleanup (null_cleanup, NULL); | |
281 | ||
282 | /* Here we are interested in canonicalizing an absolute path, not | |
283 | absolutizing a relative path. */ | |
284 | if (IS_ABSOLUTE_PATH (name)) | |
285 | { | |
286 | full_path = xfullpath (name); | |
287 | make_cleanup (xfree, full_path); | |
288 | real_path = gdb_realpath (name); | |
289 | make_cleanup (xfree, real_path); | |
290 | } | |
291 | ||
292 | ALL_OBJFILES (objfile) | |
293 | { | |
294 | if (iterate_over_some_symtabs (name, full_path, real_path, callback, data, | |
295 | objfile->symtabs, NULL)) | |
296 | { | |
297 | do_cleanups (cleanups); | |
298 | return; | |
299 | } | |
300 | } | |
301 | ||
c906108c SS |
302 | /* Same search rules as above apply here, but now we look thru the |
303 | psymtabs. */ | |
304 | ||
ccefe4c4 TT |
305 | ALL_OBJFILES (objfile) |
306 | { | |
307 | if (objfile->sf | |
f8eba3c6 TT |
308 | && objfile->sf->qf->map_symtabs_matching_filename (objfile, |
309 | name, | |
310 | full_path, | |
311 | real_path, | |
312 | callback, | |
313 | data)) | |
ccefe4c4 | 314 | { |
f8eba3c6 TT |
315 | do_cleanups (cleanups); |
316 | return; | |
ccefe4c4 TT |
317 | } |
318 | } | |
c906108c | 319 | |
f8eba3c6 TT |
320 | do_cleanups (cleanups); |
321 | } | |
322 | ||
323 | /* The callback function used by lookup_symtab. */ | |
324 | ||
325 | static int | |
326 | lookup_symtab_callback (struct symtab *symtab, void *data) | |
327 | { | |
328 | struct symtab **result_ptr = data; | |
c906108c | 329 | |
f8eba3c6 TT |
330 | *result_ptr = symtab; |
331 | return 1; | |
c906108c | 332 | } |
f8eba3c6 TT |
333 | |
334 | /* A wrapper for iterate_over_symtabs that returns the first matching | |
335 | symtab, or NULL. */ | |
336 | ||
337 | struct symtab * | |
338 | lookup_symtab (const char *name) | |
339 | { | |
340 | struct symtab *result = NULL; | |
341 | ||
342 | iterate_over_symtabs (name, lookup_symtab_callback, &result); | |
343 | return result; | |
344 | } | |
345 | ||
c906108c SS |
346 | \f |
347 | /* Mangle a GDB method stub type. This actually reassembles the pieces of the | |
348 | full method name, which consist of the class name (from T), the unadorned | |
349 | method name from METHOD_ID, and the signature for the specific overload, | |
c378eb4e | 350 | specified by SIGNATURE_ID. Note that this function is g++ specific. */ |
c906108c SS |
351 | |
352 | char * | |
fba45db2 | 353 | gdb_mangle_name (struct type *type, int method_id, int signature_id) |
c906108c SS |
354 | { |
355 | int mangled_name_len; | |
356 | char *mangled_name; | |
357 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
358 | struct fn_field *method = &f[signature_id]; | |
0d5cff50 | 359 | const char *field_name = TYPE_FN_FIELDLIST_NAME (type, method_id); |
1d06ead6 | 360 | const char *physname = TYPE_FN_FIELD_PHYSNAME (f, signature_id); |
0d5cff50 | 361 | const char *newname = type_name_no_tag (type); |
c906108c SS |
362 | |
363 | /* Does the form of physname indicate that it is the full mangled name | |
364 | of a constructor (not just the args)? */ | |
365 | int is_full_physname_constructor; | |
366 | ||
367 | int is_constructor; | |
015a42b4 | 368 | int is_destructor = is_destructor_name (physname); |
c906108c SS |
369 | /* Need a new type prefix. */ |
370 | char *const_prefix = method->is_const ? "C" : ""; | |
371 | char *volatile_prefix = method->is_volatile ? "V" : ""; | |
372 | char buf[20]; | |
373 | int len = (newname == NULL ? 0 : strlen (newname)); | |
374 | ||
43630227 PS |
375 | /* Nothing to do if physname already contains a fully mangled v3 abi name |
376 | or an operator name. */ | |
377 | if ((physname[0] == '_' && physname[1] == 'Z') | |
378 | || is_operator_name (field_name)) | |
235d1e03 EZ |
379 | return xstrdup (physname); |
380 | ||
015a42b4 | 381 | is_full_physname_constructor = is_constructor_name (physname); |
c906108c | 382 | |
3e43a32a MS |
383 | is_constructor = is_full_physname_constructor |
384 | || (newname && strcmp (field_name, newname) == 0); | |
c906108c SS |
385 | |
386 | if (!is_destructor) | |
c5aa993b | 387 | is_destructor = (strncmp (physname, "__dt", 4) == 0); |
c906108c SS |
388 | |
389 | if (is_destructor || is_full_physname_constructor) | |
390 | { | |
c5aa993b JM |
391 | mangled_name = (char *) xmalloc (strlen (physname) + 1); |
392 | strcpy (mangled_name, physname); | |
c906108c SS |
393 | return mangled_name; |
394 | } | |
395 | ||
396 | if (len == 0) | |
397 | { | |
8c042590 | 398 | xsnprintf (buf, sizeof (buf), "__%s%s", const_prefix, volatile_prefix); |
c906108c SS |
399 | } |
400 | else if (physname[0] == 't' || physname[0] == 'Q') | |
401 | { | |
402 | /* The physname for template and qualified methods already includes | |
c5aa993b | 403 | the class name. */ |
8c042590 | 404 | xsnprintf (buf, sizeof (buf), "__%s%s", const_prefix, volatile_prefix); |
c906108c SS |
405 | newname = NULL; |
406 | len = 0; | |
407 | } | |
408 | else | |
409 | { | |
8c042590 PM |
410 | xsnprintf (buf, sizeof (buf), "__%s%s%d", const_prefix, |
411 | volatile_prefix, len); | |
c906108c SS |
412 | } |
413 | mangled_name_len = ((is_constructor ? 0 : strlen (field_name)) | |
235d1e03 | 414 | + strlen (buf) + len + strlen (physname) + 1); |
c906108c | 415 | |
433759f7 MS |
416 | mangled_name = (char *) xmalloc (mangled_name_len); |
417 | if (is_constructor) | |
418 | mangled_name[0] = '\0'; | |
419 | else | |
420 | strcpy (mangled_name, field_name); | |
421 | ||
c906108c SS |
422 | strcat (mangled_name, buf); |
423 | /* If the class doesn't have a name, i.e. newname NULL, then we just | |
424 | mangle it using 0 for the length of the class. Thus it gets mangled | |
c378eb4e | 425 | as something starting with `::' rather than `classname::'. */ |
c906108c SS |
426 | if (newname != NULL) |
427 | strcat (mangled_name, newname); | |
428 | ||
429 | strcat (mangled_name, physname); | |
430 | return (mangled_name); | |
431 | } | |
12af6855 | 432 | |
29df156d SW |
433 | /* Initialize the cplus_specific structure. 'cplus_specific' should |
434 | only be allocated for use with cplus symbols. */ | |
435 | ||
436 | static void | |
437 | symbol_init_cplus_specific (struct general_symbol_info *gsymbol, | |
438 | struct objfile *objfile) | |
439 | { | |
440 | /* A language_specific structure should not have been previously | |
441 | initialized. */ | |
442 | gdb_assert (gsymbol->language_specific.cplus_specific == NULL); | |
443 | gdb_assert (objfile != NULL); | |
444 | ||
445 | gsymbol->language_specific.cplus_specific = | |
446 | OBSTACK_ZALLOC (&objfile->objfile_obstack, struct cplus_specific); | |
447 | } | |
448 | ||
b250c185 | 449 | /* Set the demangled name of GSYMBOL to NAME. NAME must be already |
29df156d | 450 | correctly allocated. For C++ symbols a cplus_specific struct is |
c378eb4e | 451 | allocated so OBJFILE must not be NULL. If this is a non C++ symbol |
29df156d | 452 | OBJFILE can be NULL. */ |
eca864fe | 453 | |
b250c185 SW |
454 | void |
455 | symbol_set_demangled_name (struct general_symbol_info *gsymbol, | |
29df156d SW |
456 | char *name, |
457 | struct objfile *objfile) | |
b250c185 | 458 | { |
29df156d SW |
459 | if (gsymbol->language == language_cplus) |
460 | { | |
461 | if (gsymbol->language_specific.cplus_specific == NULL) | |
462 | symbol_init_cplus_specific (gsymbol, objfile); | |
463 | ||
464 | gsymbol->language_specific.cplus_specific->demangled_name = name; | |
465 | } | |
466 | else | |
467 | gsymbol->language_specific.mangled_lang.demangled_name = name; | |
b250c185 SW |
468 | } |
469 | ||
470 | /* Return the demangled name of GSYMBOL. */ | |
eca864fe | 471 | |
0d5cff50 | 472 | const char * |
b250c185 SW |
473 | symbol_get_demangled_name (const struct general_symbol_info *gsymbol) |
474 | { | |
29df156d SW |
475 | if (gsymbol->language == language_cplus) |
476 | { | |
45c58896 SW |
477 | if (gsymbol->language_specific.cplus_specific != NULL) |
478 | return gsymbol->language_specific.cplus_specific->demangled_name; | |
479 | else | |
480 | return NULL; | |
29df156d SW |
481 | } |
482 | else | |
483 | return gsymbol->language_specific.mangled_lang.demangled_name; | |
b250c185 SW |
484 | } |
485 | ||
12af6855 | 486 | \f |
89aad1f9 | 487 | /* Initialize the language dependent portion of a symbol |
c378eb4e | 488 | depending upon the language for the symbol. */ |
eca864fe | 489 | |
89aad1f9 | 490 | void |
33e5013e SW |
491 | symbol_set_language (struct general_symbol_info *gsymbol, |
492 | enum language language) | |
89aad1f9 EZ |
493 | { |
494 | gsymbol->language = language; | |
33e5013e | 495 | if (gsymbol->language == language_d |
a766d390 | 496 | || gsymbol->language == language_go |
5784d15e | 497 | || gsymbol->language == language_java |
f55ee35c JK |
498 | || gsymbol->language == language_objc |
499 | || gsymbol->language == language_fortran) | |
89aad1f9 | 500 | { |
29df156d | 501 | symbol_set_demangled_name (gsymbol, NULL, NULL); |
89aad1f9 | 502 | } |
29df156d SW |
503 | else if (gsymbol->language == language_cplus) |
504 | gsymbol->language_specific.cplus_specific = NULL; | |
89aad1f9 EZ |
505 | else |
506 | { | |
507 | memset (&gsymbol->language_specific, 0, | |
508 | sizeof (gsymbol->language_specific)); | |
509 | } | |
510 | } | |
511 | ||
2de7ced7 DJ |
512 | /* Functions to initialize a symbol's mangled name. */ |
513 | ||
04a679b8 TT |
514 | /* Objects of this type are stored in the demangled name hash table. */ |
515 | struct demangled_name_entry | |
516 | { | |
517 | char *mangled; | |
518 | char demangled[1]; | |
519 | }; | |
520 | ||
521 | /* Hash function for the demangled name hash. */ | |
eca864fe | 522 | |
04a679b8 TT |
523 | static hashval_t |
524 | hash_demangled_name_entry (const void *data) | |
525 | { | |
526 | const struct demangled_name_entry *e = data; | |
433759f7 | 527 | |
04a679b8 TT |
528 | return htab_hash_string (e->mangled); |
529 | } | |
530 | ||
531 | /* Equality function for the demangled name hash. */ | |
eca864fe | 532 | |
04a679b8 TT |
533 | static int |
534 | eq_demangled_name_entry (const void *a, const void *b) | |
535 | { | |
536 | const struct demangled_name_entry *da = a; | |
537 | const struct demangled_name_entry *db = b; | |
433759f7 | 538 | |
04a679b8 TT |
539 | return strcmp (da->mangled, db->mangled) == 0; |
540 | } | |
541 | ||
2de7ced7 DJ |
542 | /* Create the hash table used for demangled names. Each hash entry is |
543 | a pair of strings; one for the mangled name and one for the demangled | |
544 | name. The entry is hashed via just the mangled name. */ | |
545 | ||
546 | static void | |
547 | create_demangled_names_hash (struct objfile *objfile) | |
548 | { | |
549 | /* Choose 256 as the starting size of the hash table, somewhat arbitrarily. | |
9af17804 | 550 | The hash table code will round this up to the next prime number. |
2de7ced7 DJ |
551 | Choosing a much larger table size wastes memory, and saves only about |
552 | 1% in symbol reading. */ | |
553 | ||
aa2ee5f6 | 554 | objfile->demangled_names_hash = htab_create_alloc |
04a679b8 | 555 | (256, hash_demangled_name_entry, eq_demangled_name_entry, |
aa2ee5f6 | 556 | NULL, xcalloc, xfree); |
2de7ced7 | 557 | } |
12af6855 | 558 | |
2de7ced7 | 559 | /* Try to determine the demangled name for a symbol, based on the |
12af6855 JB |
560 | language of that symbol. If the language is set to language_auto, |
561 | it will attempt to find any demangling algorithm that works and | |
2de7ced7 DJ |
562 | then set the language appropriately. The returned name is allocated |
563 | by the demangler and should be xfree'd. */ | |
12af6855 | 564 | |
2de7ced7 DJ |
565 | static char * |
566 | symbol_find_demangled_name (struct general_symbol_info *gsymbol, | |
567 | const char *mangled) | |
12af6855 | 568 | { |
12af6855 JB |
569 | char *demangled = NULL; |
570 | ||
571 | if (gsymbol->language == language_unknown) | |
572 | gsymbol->language = language_auto; | |
1bae87b9 AF |
573 | |
574 | if (gsymbol->language == language_objc | |
575 | || gsymbol->language == language_auto) | |
576 | { | |
577 | demangled = | |
578 | objc_demangle (mangled, 0); | |
579 | if (demangled != NULL) | |
580 | { | |
581 | gsymbol->language = language_objc; | |
582 | return demangled; | |
583 | } | |
584 | } | |
12af6855 JB |
585 | if (gsymbol->language == language_cplus |
586 | || gsymbol->language == language_auto) | |
587 | { | |
588 | demangled = | |
3f542ed1 | 589 | cplus_demangle (mangled, DMGL_PARAMS | DMGL_ANSI); |
12af6855 | 590 | if (demangled != NULL) |
2de7ced7 DJ |
591 | { |
592 | gsymbol->language = language_cplus; | |
593 | return demangled; | |
594 | } | |
12af6855 JB |
595 | } |
596 | if (gsymbol->language == language_java) | |
597 | { | |
598 | demangled = | |
2de7ced7 | 599 | cplus_demangle (mangled, |
12af6855 JB |
600 | DMGL_PARAMS | DMGL_ANSI | DMGL_JAVA); |
601 | if (demangled != NULL) | |
2de7ced7 DJ |
602 | { |
603 | gsymbol->language = language_java; | |
604 | return demangled; | |
605 | } | |
606 | } | |
6aecb9c2 JB |
607 | if (gsymbol->language == language_d |
608 | || gsymbol->language == language_auto) | |
609 | { | |
610 | demangled = d_demangle(mangled, 0); | |
611 | if (demangled != NULL) | |
612 | { | |
613 | gsymbol->language = language_d; | |
614 | return demangled; | |
615 | } | |
616 | } | |
a766d390 DE |
617 | /* FIXME(dje): Continually adding languages here is clumsy. |
618 | Better to just call la_demangle if !auto, and if auto then call | |
619 | a utility routine that tries successive languages in turn and reports | |
620 | which one it finds. I realize the la_demangle options may be different | |
621 | for different languages but there's already a FIXME for that. */ | |
622 | if (gsymbol->language == language_go | |
623 | || gsymbol->language == language_auto) | |
624 | { | |
625 | demangled = go_demangle (mangled, 0); | |
626 | if (demangled != NULL) | |
627 | { | |
628 | gsymbol->language = language_go; | |
629 | return demangled; | |
630 | } | |
631 | } | |
632 | ||
f55ee35c JK |
633 | /* We could support `gsymbol->language == language_fortran' here to provide |
634 | module namespaces also for inferiors with only minimal symbol table (ELF | |
635 | symbols). Just the mangling standard is not standardized across compilers | |
636 | and there is no DW_AT_producer available for inferiors with only the ELF | |
637 | symbols to check the mangling kind. */ | |
2de7ced7 DJ |
638 | return NULL; |
639 | } | |
640 | ||
980cae7a | 641 | /* Set both the mangled and demangled (if any) names for GSYMBOL based |
04a679b8 TT |
642 | on LINKAGE_NAME and LEN. Ordinarily, NAME is copied onto the |
643 | objfile's obstack; but if COPY_NAME is 0 and if NAME is | |
644 | NUL-terminated, then this function assumes that NAME is already | |
645 | correctly saved (either permanently or with a lifetime tied to the | |
646 | objfile), and it will not be copied. | |
647 | ||
648 | The hash table corresponding to OBJFILE is used, and the memory | |
649 | comes from that objfile's objfile_obstack. LINKAGE_NAME is copied, | |
650 | so the pointer can be discarded after calling this function. */ | |
2de7ced7 | 651 | |
d2a52b27 DC |
652 | /* We have to be careful when dealing with Java names: when we run |
653 | into a Java minimal symbol, we don't know it's a Java symbol, so it | |
654 | gets demangled as a C++ name. This is unfortunate, but there's not | |
655 | much we can do about it: but when demangling partial symbols and | |
656 | regular symbols, we'd better not reuse the wrong demangled name. | |
657 | (See PR gdb/1039.) We solve this by putting a distinctive prefix | |
658 | on Java names when storing them in the hash table. */ | |
659 | ||
660 | /* FIXME: carlton/2003-03-13: This is an unfortunate situation. I | |
661 | don't mind the Java prefix so much: different languages have | |
662 | different demangling requirements, so it's only natural that we | |
663 | need to keep language data around in our demangling cache. But | |
664 | it's not good that the minimal symbol has the wrong demangled name. | |
665 | Unfortunately, I can't think of any easy solution to that | |
666 | problem. */ | |
667 | ||
668 | #define JAVA_PREFIX "##JAVA$$" | |
669 | #define JAVA_PREFIX_LEN 8 | |
670 | ||
2de7ced7 DJ |
671 | void |
672 | symbol_set_names (struct general_symbol_info *gsymbol, | |
04a679b8 TT |
673 | const char *linkage_name, int len, int copy_name, |
674 | struct objfile *objfile) | |
2de7ced7 | 675 | { |
04a679b8 | 676 | struct demangled_name_entry **slot; |
980cae7a DC |
677 | /* A 0-terminated copy of the linkage name. */ |
678 | const char *linkage_name_copy; | |
d2a52b27 DC |
679 | /* A copy of the linkage name that might have a special Java prefix |
680 | added to it, for use when looking names up in the hash table. */ | |
681 | const char *lookup_name; | |
682 | /* The length of lookup_name. */ | |
683 | int lookup_len; | |
04a679b8 | 684 | struct demangled_name_entry entry; |
2de7ced7 | 685 | |
b06ead72 JB |
686 | if (gsymbol->language == language_ada) |
687 | { | |
688 | /* In Ada, we do the symbol lookups using the mangled name, so | |
689 | we can save some space by not storing the demangled name. | |
690 | ||
691 | As a side note, we have also observed some overlap between | |
692 | the C++ mangling and Ada mangling, similarly to what has | |
693 | been observed with Java. Because we don't store the demangled | |
694 | name with the symbol, we don't need to use the same trick | |
695 | as Java. */ | |
04a679b8 | 696 | if (!copy_name) |
0d5cff50 | 697 | gsymbol->name = linkage_name; |
04a679b8 TT |
698 | else |
699 | { | |
0d5cff50 DE |
700 | char *name = obstack_alloc (&objfile->objfile_obstack, len + 1); |
701 | ||
702 | memcpy (name, linkage_name, len); | |
703 | name[len] = '\0'; | |
704 | gsymbol->name = name; | |
04a679b8 | 705 | } |
29df156d | 706 | symbol_set_demangled_name (gsymbol, NULL, NULL); |
b06ead72 JB |
707 | |
708 | return; | |
709 | } | |
710 | ||
04a679b8 TT |
711 | if (objfile->demangled_names_hash == NULL) |
712 | create_demangled_names_hash (objfile); | |
713 | ||
980cae7a DC |
714 | /* The stabs reader generally provides names that are not |
715 | NUL-terminated; most of the other readers don't do this, so we | |
d2a52b27 DC |
716 | can just use the given copy, unless we're in the Java case. */ |
717 | if (gsymbol->language == language_java) | |
718 | { | |
719 | char *alloc_name; | |
d2a52b27 | 720 | |
433759f7 | 721 | lookup_len = len + JAVA_PREFIX_LEN; |
d2a52b27 DC |
722 | alloc_name = alloca (lookup_len + 1); |
723 | memcpy (alloc_name, JAVA_PREFIX, JAVA_PREFIX_LEN); | |
724 | memcpy (alloc_name + JAVA_PREFIX_LEN, linkage_name, len); | |
725 | alloc_name[lookup_len] = '\0'; | |
726 | ||
727 | lookup_name = alloc_name; | |
728 | linkage_name_copy = alloc_name + JAVA_PREFIX_LEN; | |
729 | } | |
730 | else if (linkage_name[len] != '\0') | |
2de7ced7 | 731 | { |
980cae7a DC |
732 | char *alloc_name; |
733 | ||
433759f7 | 734 | lookup_len = len; |
d2a52b27 | 735 | alloc_name = alloca (lookup_len + 1); |
980cae7a | 736 | memcpy (alloc_name, linkage_name, len); |
d2a52b27 | 737 | alloc_name[lookup_len] = '\0'; |
980cae7a | 738 | |
d2a52b27 | 739 | lookup_name = alloc_name; |
980cae7a | 740 | linkage_name_copy = alloc_name; |
2de7ced7 DJ |
741 | } |
742 | else | |
980cae7a | 743 | { |
d2a52b27 DC |
744 | lookup_len = len; |
745 | lookup_name = linkage_name; | |
980cae7a DC |
746 | linkage_name_copy = linkage_name; |
747 | } | |
2de7ced7 | 748 | |
04a679b8 TT |
749 | entry.mangled = (char *) lookup_name; |
750 | slot = ((struct demangled_name_entry **) | |
751 | htab_find_slot (objfile->demangled_names_hash, | |
752 | &entry, INSERT)); | |
2de7ced7 DJ |
753 | |
754 | /* If this name is not in the hash table, add it. */ | |
a766d390 DE |
755 | if (*slot == NULL |
756 | /* A C version of the symbol may have already snuck into the table. | |
757 | This happens to, e.g., main.init (__go_init_main). Cope. */ | |
758 | || (gsymbol->language == language_go | |
759 | && (*slot)->demangled[0] == '\0')) | |
2de7ced7 | 760 | { |
980cae7a DC |
761 | char *demangled_name = symbol_find_demangled_name (gsymbol, |
762 | linkage_name_copy); | |
2de7ced7 DJ |
763 | int demangled_len = demangled_name ? strlen (demangled_name) : 0; |
764 | ||
04a679b8 TT |
765 | /* Suppose we have demangled_name==NULL, copy_name==0, and |
766 | lookup_name==linkage_name. In this case, we already have the | |
767 | mangled name saved, and we don't have a demangled name. So, | |
768 | you might think we could save a little space by not recording | |
769 | this in the hash table at all. | |
770 | ||
771 | It turns out that it is actually important to still save such | |
772 | an entry in the hash table, because storing this name gives | |
705b5767 | 773 | us better bcache hit rates for partial symbols. */ |
04a679b8 TT |
774 | if (!copy_name && lookup_name == linkage_name) |
775 | { | |
776 | *slot = obstack_alloc (&objfile->objfile_obstack, | |
777 | offsetof (struct demangled_name_entry, | |
778 | demangled) | |
779 | + demangled_len + 1); | |
780 | (*slot)->mangled = (char *) lookup_name; | |
781 | } | |
782 | else | |
783 | { | |
784 | /* If we must copy the mangled name, put it directly after | |
785 | the demangled name so we can have a single | |
786 | allocation. */ | |
787 | *slot = obstack_alloc (&objfile->objfile_obstack, | |
788 | offsetof (struct demangled_name_entry, | |
789 | demangled) | |
790 | + lookup_len + demangled_len + 2); | |
791 | (*slot)->mangled = &((*slot)->demangled[demangled_len + 1]); | |
792 | strcpy ((*slot)->mangled, lookup_name); | |
793 | } | |
794 | ||
980cae7a | 795 | if (demangled_name != NULL) |
2de7ced7 | 796 | { |
04a679b8 | 797 | strcpy ((*slot)->demangled, demangled_name); |
2de7ced7 DJ |
798 | xfree (demangled_name); |
799 | } | |
800 | else | |
04a679b8 | 801 | (*slot)->demangled[0] = '\0'; |
2de7ced7 DJ |
802 | } |
803 | ||
72dcaf82 | 804 | gsymbol->name = (*slot)->mangled + lookup_len - len; |
04a679b8 | 805 | if ((*slot)->demangled[0] != '\0') |
29df156d | 806 | symbol_set_demangled_name (gsymbol, (*slot)->demangled, objfile); |
2de7ced7 | 807 | else |
29df156d | 808 | symbol_set_demangled_name (gsymbol, NULL, objfile); |
2de7ced7 DJ |
809 | } |
810 | ||
22abf04a DC |
811 | /* Return the source code name of a symbol. In languages where |
812 | demangling is necessary, this is the demangled name. */ | |
813 | ||
0d5cff50 | 814 | const char * |
22abf04a DC |
815 | symbol_natural_name (const struct general_symbol_info *gsymbol) |
816 | { | |
9af17804 | 817 | switch (gsymbol->language) |
22abf04a | 818 | { |
1f8173e6 | 819 | case language_cplus: |
6aecb9c2 | 820 | case language_d: |
a766d390 | 821 | case language_go: |
1f8173e6 PH |
822 | case language_java: |
823 | case language_objc: | |
f55ee35c | 824 | case language_fortran: |
b250c185 SW |
825 | if (symbol_get_demangled_name (gsymbol) != NULL) |
826 | return symbol_get_demangled_name (gsymbol); | |
1f8173e6 PH |
827 | break; |
828 | case language_ada: | |
b250c185 SW |
829 | if (symbol_get_demangled_name (gsymbol) != NULL) |
830 | return symbol_get_demangled_name (gsymbol); | |
1f8173e6 PH |
831 | else |
832 | return ada_decode_symbol (gsymbol); | |
833 | break; | |
834 | default: | |
835 | break; | |
22abf04a | 836 | } |
1f8173e6 | 837 | return gsymbol->name; |
22abf04a DC |
838 | } |
839 | ||
9cc0d196 | 840 | /* Return the demangled name for a symbol based on the language for |
c378eb4e | 841 | that symbol. If no demangled name exists, return NULL. */ |
eca864fe | 842 | |
0d5cff50 | 843 | const char * |
df8a16a1 | 844 | symbol_demangled_name (const struct general_symbol_info *gsymbol) |
9cc0d196 | 845 | { |
c6e5ee5e SDJ |
846 | const char *dem_name = NULL; |
847 | ||
9af17804 | 848 | switch (gsymbol->language) |
1f8173e6 PH |
849 | { |
850 | case language_cplus: | |
6aecb9c2 | 851 | case language_d: |
a766d390 | 852 | case language_go: |
1f8173e6 PH |
853 | case language_java: |
854 | case language_objc: | |
f55ee35c | 855 | case language_fortran: |
c6e5ee5e | 856 | dem_name = symbol_get_demangled_name (gsymbol); |
1f8173e6 PH |
857 | break; |
858 | case language_ada: | |
c6e5ee5e SDJ |
859 | dem_name = symbol_get_demangled_name (gsymbol); |
860 | if (dem_name == NULL) | |
861 | dem_name = ada_decode_symbol (gsymbol); | |
1f8173e6 PH |
862 | break; |
863 | default: | |
864 | break; | |
865 | } | |
c6e5ee5e | 866 | return dem_name; |
9cc0d196 | 867 | } |
fe39c653 | 868 | |
4725b721 PH |
869 | /* Return the search name of a symbol---generally the demangled or |
870 | linkage name of the symbol, depending on how it will be searched for. | |
9af17804 | 871 | If there is no distinct demangled name, then returns the same value |
c378eb4e | 872 | (same pointer) as SYMBOL_LINKAGE_NAME. */ |
eca864fe | 873 | |
0d5cff50 | 874 | const char * |
fc062ac6 JB |
875 | symbol_search_name (const struct general_symbol_info *gsymbol) |
876 | { | |
1f8173e6 PH |
877 | if (gsymbol->language == language_ada) |
878 | return gsymbol->name; | |
879 | else | |
880 | return symbol_natural_name (gsymbol); | |
4725b721 PH |
881 | } |
882 | ||
fe39c653 | 883 | /* Initialize the structure fields to zero values. */ |
eca864fe | 884 | |
fe39c653 EZ |
885 | void |
886 | init_sal (struct symtab_and_line *sal) | |
887 | { | |
6c95b8df | 888 | sal->pspace = NULL; |
fe39c653 EZ |
889 | sal->symtab = 0; |
890 | sal->section = 0; | |
891 | sal->line = 0; | |
892 | sal->pc = 0; | |
893 | sal->end = 0; | |
ed0616c6 VP |
894 | sal->explicit_pc = 0; |
895 | sal->explicit_line = 0; | |
55aa24fb | 896 | sal->probe = NULL; |
fe39c653 | 897 | } |
c906108c SS |
898 | \f |
899 | ||
94277a38 DJ |
900 | /* Return 1 if the two sections are the same, or if they could |
901 | plausibly be copies of each other, one in an original object | |
902 | file and another in a separated debug file. */ | |
903 | ||
904 | int | |
714835d5 UW |
905 | matching_obj_sections (struct obj_section *obj_first, |
906 | struct obj_section *obj_second) | |
94277a38 | 907 | { |
714835d5 UW |
908 | asection *first = obj_first? obj_first->the_bfd_section : NULL; |
909 | asection *second = obj_second? obj_second->the_bfd_section : NULL; | |
94277a38 DJ |
910 | struct objfile *obj; |
911 | ||
912 | /* If they're the same section, then they match. */ | |
913 | if (first == second) | |
914 | return 1; | |
915 | ||
916 | /* If either is NULL, give up. */ | |
917 | if (first == NULL || second == NULL) | |
918 | return 0; | |
919 | ||
920 | /* This doesn't apply to absolute symbols. */ | |
921 | if (first->owner == NULL || second->owner == NULL) | |
922 | return 0; | |
923 | ||
924 | /* If they're in the same object file, they must be different sections. */ | |
925 | if (first->owner == second->owner) | |
926 | return 0; | |
927 | ||
928 | /* Check whether the two sections are potentially corresponding. They must | |
929 | have the same size, address, and name. We can't compare section indexes, | |
930 | which would be more reliable, because some sections may have been | |
931 | stripped. */ | |
932 | if (bfd_get_section_size (first) != bfd_get_section_size (second)) | |
933 | return 0; | |
934 | ||
818f79f6 | 935 | /* In-memory addresses may start at a different offset, relativize them. */ |
94277a38 | 936 | if (bfd_get_section_vma (first->owner, first) |
818f79f6 DJ |
937 | - bfd_get_start_address (first->owner) |
938 | != bfd_get_section_vma (second->owner, second) | |
939 | - bfd_get_start_address (second->owner)) | |
94277a38 DJ |
940 | return 0; |
941 | ||
942 | if (bfd_get_section_name (first->owner, first) == NULL | |
943 | || bfd_get_section_name (second->owner, second) == NULL | |
944 | || strcmp (bfd_get_section_name (first->owner, first), | |
945 | bfd_get_section_name (second->owner, second)) != 0) | |
946 | return 0; | |
947 | ||
948 | /* Otherwise check that they are in corresponding objfiles. */ | |
949 | ||
950 | ALL_OBJFILES (obj) | |
951 | if (obj->obfd == first->owner) | |
952 | break; | |
953 | gdb_assert (obj != NULL); | |
954 | ||
955 | if (obj->separate_debug_objfile != NULL | |
956 | && obj->separate_debug_objfile->obfd == second->owner) | |
957 | return 1; | |
958 | if (obj->separate_debug_objfile_backlink != NULL | |
959 | && obj->separate_debug_objfile_backlink->obfd == second->owner) | |
960 | return 1; | |
961 | ||
962 | return 0; | |
963 | } | |
c5aa993b | 964 | |
ccefe4c4 TT |
965 | struct symtab * |
966 | find_pc_sect_symtab_via_partial (CORE_ADDR pc, struct obj_section *section) | |
c906108c | 967 | { |
52f0bd74 | 968 | struct objfile *objfile; |
8a48e967 DJ |
969 | struct minimal_symbol *msymbol; |
970 | ||
971 | /* If we know that this is not a text address, return failure. This is | |
972 | necessary because we loop based on texthigh and textlow, which do | |
973 | not include the data ranges. */ | |
974 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); | |
975 | if (msymbol | |
712f90be TT |
976 | && (MSYMBOL_TYPE (msymbol) == mst_data |
977 | || MSYMBOL_TYPE (msymbol) == mst_bss | |
978 | || MSYMBOL_TYPE (msymbol) == mst_abs | |
979 | || MSYMBOL_TYPE (msymbol) == mst_file_data | |
980 | || MSYMBOL_TYPE (msymbol) == mst_file_bss)) | |
8a48e967 | 981 | return NULL; |
c906108c | 982 | |
ff013f42 | 983 | ALL_OBJFILES (objfile) |
ccefe4c4 TT |
984 | { |
985 | struct symtab *result = NULL; | |
433759f7 | 986 | |
ccefe4c4 TT |
987 | if (objfile->sf) |
988 | result = objfile->sf->qf->find_pc_sect_symtab (objfile, msymbol, | |
989 | pc, section, 0); | |
990 | if (result) | |
991 | return result; | |
992 | } | |
ff013f42 JK |
993 | |
994 | return NULL; | |
c906108c | 995 | } |
c906108c SS |
996 | \f |
997 | /* Debug symbols usually don't have section information. We need to dig that | |
998 | out of the minimal symbols and stash that in the debug symbol. */ | |
999 | ||
ccefe4c4 | 1000 | void |
907fc202 UW |
1001 | fixup_section (struct general_symbol_info *ginfo, |
1002 | CORE_ADDR addr, struct objfile *objfile) | |
c906108c SS |
1003 | { |
1004 | struct minimal_symbol *msym; | |
c906108c | 1005 | |
bccdca4a UW |
1006 | /* First, check whether a minimal symbol with the same name exists |
1007 | and points to the same address. The address check is required | |
1008 | e.g. on PowerPC64, where the minimal symbol for a function will | |
1009 | point to the function descriptor, while the debug symbol will | |
1010 | point to the actual function code. */ | |
907fc202 UW |
1011 | msym = lookup_minimal_symbol_by_pc_name (addr, ginfo->name, objfile); |
1012 | if (msym) | |
7a78d0ee | 1013 | { |
714835d5 | 1014 | ginfo->obj_section = SYMBOL_OBJ_SECTION (msym); |
7a78d0ee KB |
1015 | ginfo->section = SYMBOL_SECTION (msym); |
1016 | } | |
907fc202 | 1017 | else |
19e2d14b KB |
1018 | { |
1019 | /* Static, function-local variables do appear in the linker | |
1020 | (minimal) symbols, but are frequently given names that won't | |
1021 | be found via lookup_minimal_symbol(). E.g., it has been | |
1022 | observed in frv-uclinux (ELF) executables that a static, | |
1023 | function-local variable named "foo" might appear in the | |
1024 | linker symbols as "foo.6" or "foo.3". Thus, there is no | |
1025 | point in attempting to extend the lookup-by-name mechanism to | |
1026 | handle this case due to the fact that there can be multiple | |
1027 | names. | |
9af17804 | 1028 | |
19e2d14b KB |
1029 | So, instead, search the section table when lookup by name has |
1030 | failed. The ``addr'' and ``endaddr'' fields may have already | |
1031 | been relocated. If so, the relocation offset (i.e. the | |
1032 | ANOFFSET value) needs to be subtracted from these values when | |
1033 | performing the comparison. We unconditionally subtract it, | |
1034 | because, when no relocation has been performed, the ANOFFSET | |
1035 | value will simply be zero. | |
9af17804 | 1036 | |
19e2d14b KB |
1037 | The address of the symbol whose section we're fixing up HAS |
1038 | NOT BEEN adjusted (relocated) yet. It can't have been since | |
1039 | the section isn't yet known and knowing the section is | |
1040 | necessary in order to add the correct relocation value. In | |
1041 | other words, we wouldn't even be in this function (attempting | |
1042 | to compute the section) if it were already known. | |
1043 | ||
1044 | Note that it is possible to search the minimal symbols | |
1045 | (subtracting the relocation value if necessary) to find the | |
1046 | matching minimal symbol, but this is overkill and much less | |
1047 | efficient. It is not necessary to find the matching minimal | |
9af17804 DE |
1048 | symbol, only its section. |
1049 | ||
19e2d14b KB |
1050 | Note that this technique (of doing a section table search) |
1051 | can fail when unrelocated section addresses overlap. For | |
1052 | this reason, we still attempt a lookup by name prior to doing | |
1053 | a search of the section table. */ | |
9af17804 | 1054 | |
19e2d14b | 1055 | struct obj_section *s; |
433759f7 | 1056 | |
19e2d14b KB |
1057 | ALL_OBJFILE_OSECTIONS (objfile, s) |
1058 | { | |
1059 | int idx = s->the_bfd_section->index; | |
1060 | CORE_ADDR offset = ANOFFSET (objfile->section_offsets, idx); | |
1061 | ||
f1f6aadf PA |
1062 | if (obj_section_addr (s) - offset <= addr |
1063 | && addr < obj_section_endaddr (s) - offset) | |
19e2d14b | 1064 | { |
714835d5 | 1065 | ginfo->obj_section = s; |
19e2d14b KB |
1066 | ginfo->section = idx; |
1067 | return; | |
1068 | } | |
1069 | } | |
1070 | } | |
c906108c SS |
1071 | } |
1072 | ||
1073 | struct symbol * | |
fba45db2 | 1074 | fixup_symbol_section (struct symbol *sym, struct objfile *objfile) |
c906108c | 1075 | { |
907fc202 UW |
1076 | CORE_ADDR addr; |
1077 | ||
c906108c SS |
1078 | if (!sym) |
1079 | return NULL; | |
1080 | ||
714835d5 | 1081 | if (SYMBOL_OBJ_SECTION (sym)) |
c906108c SS |
1082 | return sym; |
1083 | ||
907fc202 UW |
1084 | /* We either have an OBJFILE, or we can get at it from the sym's |
1085 | symtab. Anything else is a bug. */ | |
1086 | gdb_assert (objfile || SYMBOL_SYMTAB (sym)); | |
1087 | ||
1088 | if (objfile == NULL) | |
1089 | objfile = SYMBOL_SYMTAB (sym)->objfile; | |
1090 | ||
1091 | /* We should have an objfile by now. */ | |
1092 | gdb_assert (objfile); | |
1093 | ||
1094 | switch (SYMBOL_CLASS (sym)) | |
1095 | { | |
1096 | case LOC_STATIC: | |
1097 | case LOC_LABEL: | |
907fc202 UW |
1098 | addr = SYMBOL_VALUE_ADDRESS (sym); |
1099 | break; | |
1100 | case LOC_BLOCK: | |
1101 | addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); | |
1102 | break; | |
1103 | ||
1104 | default: | |
1105 | /* Nothing else will be listed in the minsyms -- no use looking | |
1106 | it up. */ | |
1107 | return sym; | |
1108 | } | |
1109 | ||
1110 | fixup_section (&sym->ginfo, addr, objfile); | |
c906108c SS |
1111 | |
1112 | return sym; | |
1113 | } | |
1114 | ||
f8eba3c6 TT |
1115 | /* Compute the demangled form of NAME as used by the various symbol |
1116 | lookup functions. The result is stored in *RESULT_NAME. Returns a | |
1117 | cleanup which can be used to clean up the result. | |
1118 | ||
1119 | For Ada, this function just sets *RESULT_NAME to NAME, unmodified. | |
1120 | Normally, Ada symbol lookups are performed using the encoded name | |
1121 | rather than the demangled name, and so it might seem to make sense | |
1122 | for this function to return an encoded version of NAME. | |
1123 | Unfortunately, we cannot do this, because this function is used in | |
1124 | circumstances where it is not appropriate to try to encode NAME. | |
1125 | For instance, when displaying the frame info, we demangle the name | |
1126 | of each parameter, and then perform a symbol lookup inside our | |
1127 | function using that demangled name. In Ada, certain functions | |
1128 | have internally-generated parameters whose name contain uppercase | |
1129 | characters. Encoding those name would result in those uppercase | |
1130 | characters to become lowercase, and thus cause the symbol lookup | |
1131 | to fail. */ | |
c906108c | 1132 | |
f8eba3c6 TT |
1133 | struct cleanup * |
1134 | demangle_for_lookup (const char *name, enum language lang, | |
1135 | const char **result_name) | |
c906108c | 1136 | { |
729051e6 DJ |
1137 | char *demangled_name = NULL; |
1138 | const char *modified_name = NULL; | |
9ee6bb93 | 1139 | struct cleanup *cleanup = make_cleanup (null_cleanup, 0); |
c906108c | 1140 | |
729051e6 DJ |
1141 | modified_name = name; |
1142 | ||
a766d390 | 1143 | /* If we are using C++, D, Go, or Java, demangle the name before doing a |
c378eb4e | 1144 | lookup, so we can always binary search. */ |
53c5240f | 1145 | if (lang == language_cplus) |
729051e6 DJ |
1146 | { |
1147 | demangled_name = cplus_demangle (name, DMGL_ANSI | DMGL_PARAMS); | |
1148 | if (demangled_name) | |
1149 | { | |
729051e6 | 1150 | modified_name = demangled_name; |
9ee6bb93 | 1151 | make_cleanup (xfree, demangled_name); |
729051e6 | 1152 | } |
71c25dea TT |
1153 | else |
1154 | { | |
1155 | /* If we were given a non-mangled name, canonicalize it | |
1156 | according to the language (so far only for C++). */ | |
1157 | demangled_name = cp_canonicalize_string (name); | |
1158 | if (demangled_name) | |
1159 | { | |
1160 | modified_name = demangled_name; | |
1161 | make_cleanup (xfree, demangled_name); | |
1162 | } | |
1163 | } | |
729051e6 | 1164 | } |
53c5240f | 1165 | else if (lang == language_java) |
987504bb | 1166 | { |
9af17804 | 1167 | demangled_name = cplus_demangle (name, |
987504bb JJ |
1168 | DMGL_ANSI | DMGL_PARAMS | DMGL_JAVA); |
1169 | if (demangled_name) | |
1170 | { | |
987504bb | 1171 | modified_name = demangled_name; |
9ee6bb93 | 1172 | make_cleanup (xfree, demangled_name); |
987504bb JJ |
1173 | } |
1174 | } | |
6aecb9c2 JB |
1175 | else if (lang == language_d) |
1176 | { | |
1177 | demangled_name = d_demangle (name, 0); | |
1178 | if (demangled_name) | |
1179 | { | |
1180 | modified_name = demangled_name; | |
1181 | make_cleanup (xfree, demangled_name); | |
1182 | } | |
1183 | } | |
a766d390 DE |
1184 | else if (lang == language_go) |
1185 | { | |
1186 | demangled_name = go_demangle (name, 0); | |
1187 | if (demangled_name) | |
1188 | { | |
1189 | modified_name = demangled_name; | |
1190 | make_cleanup (xfree, demangled_name); | |
1191 | } | |
1192 | } | |
729051e6 | 1193 | |
f8eba3c6 TT |
1194 | *result_name = modified_name; |
1195 | return cleanup; | |
1196 | } | |
1197 | ||
1198 | /* Find the definition for a specified symbol name NAME | |
1199 | in domain DOMAIN, visible from lexical block BLOCK. | |
1200 | Returns the struct symbol pointer, or zero if no symbol is found. | |
1201 | C++: if IS_A_FIELD_OF_THIS is nonzero on entry, check to see if | |
1202 | NAME is a field of the current implied argument `this'. If so set | |
1203 | *IS_A_FIELD_OF_THIS to 1, otherwise set it to zero. | |
1204 | BLOCK_FOUND is set to the block in which NAME is found (in the case of | |
1205 | a field of `this', value_of_this sets BLOCK_FOUND to the proper value.) */ | |
1206 | ||
7e082072 DE |
1207 | /* This function (or rather its subordinates) have a bunch of loops and |
1208 | it would seem to be attractive to put in some QUIT's (though I'm not really | |
1209 | sure whether it can run long enough to be really important). But there | |
f8eba3c6 | 1210 | are a few calls for which it would appear to be bad news to quit |
7e082072 | 1211 | out of here: e.g., find_proc_desc in alpha-mdebug-tdep.c. (Note |
f8eba3c6 TT |
1212 | that there is C++ code below which can error(), but that probably |
1213 | doesn't affect these calls since they are looking for a known | |
1214 | variable and thus can probably assume it will never hit the C++ | |
1215 | code). */ | |
1216 | ||
1217 | struct symbol * | |
1218 | lookup_symbol_in_language (const char *name, const struct block *block, | |
1219 | const domain_enum domain, enum language lang, | |
1993b719 | 1220 | struct field_of_this_result *is_a_field_of_this) |
f8eba3c6 TT |
1221 | { |
1222 | const char *modified_name; | |
1223 | struct symbol *returnval; | |
1224 | struct cleanup *cleanup = demangle_for_lookup (name, lang, &modified_name); | |
1225 | ||
94af9270 | 1226 | returnval = lookup_symbol_aux (modified_name, block, domain, lang, |
774b6a14 | 1227 | is_a_field_of_this); |
9ee6bb93 | 1228 | do_cleanups (cleanup); |
fba7f19c | 1229 | |
9af17804 | 1230 | return returnval; |
fba7f19c EZ |
1231 | } |
1232 | ||
53c5240f PA |
1233 | /* Behave like lookup_symbol_in_language, but performed with the |
1234 | current language. */ | |
1235 | ||
1236 | struct symbol * | |
1237 | lookup_symbol (const char *name, const struct block *block, | |
1993b719 TT |
1238 | domain_enum domain, |
1239 | struct field_of_this_result *is_a_field_of_this) | |
53c5240f PA |
1240 | { |
1241 | return lookup_symbol_in_language (name, block, domain, | |
1242 | current_language->la_language, | |
2570f2b7 | 1243 | is_a_field_of_this); |
53c5240f PA |
1244 | } |
1245 | ||
66a17cb6 TT |
1246 | /* Look up the `this' symbol for LANG in BLOCK. Return the symbol if |
1247 | found, or NULL if not found. */ | |
1248 | ||
1249 | struct symbol * | |
1250 | lookup_language_this (const struct language_defn *lang, | |
1251 | const struct block *block) | |
1252 | { | |
1253 | if (lang->la_name_of_this == NULL || block == NULL) | |
1254 | return NULL; | |
1255 | ||
03de6823 | 1256 | while (block) |
66a17cb6 TT |
1257 | { |
1258 | struct symbol *sym; | |
1259 | ||
1260 | sym = lookup_block_symbol (block, lang->la_name_of_this, VAR_DOMAIN); | |
1261 | if (sym != NULL) | |
f149aabd TT |
1262 | { |
1263 | block_found = block; | |
1264 | return sym; | |
1265 | } | |
66a17cb6 | 1266 | if (BLOCK_FUNCTION (block)) |
03de6823 | 1267 | break; |
66a17cb6 TT |
1268 | block = BLOCK_SUPERBLOCK (block); |
1269 | } | |
03de6823 TT |
1270 | |
1271 | return NULL; | |
66a17cb6 TT |
1272 | } |
1273 | ||
2dc3df72 TT |
1274 | /* Given TYPE, a structure/union, |
1275 | return 1 if the component named NAME from the ultimate target | |
1276 | structure/union is defined, otherwise, return 0. */ | |
1277 | ||
1278 | static int | |
1993b719 TT |
1279 | check_field (struct type *type, const char *name, |
1280 | struct field_of_this_result *is_a_field_of_this) | |
2dc3df72 TT |
1281 | { |
1282 | int i; | |
1283 | ||
1284 | /* The type may be a stub. */ | |
1285 | CHECK_TYPEDEF (type); | |
1286 | ||
1287 | for (i = TYPE_NFIELDS (type) - 1; i >= TYPE_N_BASECLASSES (type); i--) | |
1288 | { | |
1289 | const char *t_field_name = TYPE_FIELD_NAME (type, i); | |
1290 | ||
1291 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) | |
1993b719 TT |
1292 | { |
1293 | is_a_field_of_this->type = type; | |
1294 | is_a_field_of_this->field = &TYPE_FIELD (type, i); | |
1295 | return 1; | |
1296 | } | |
2dc3df72 TT |
1297 | } |
1298 | ||
1299 | /* C++: If it was not found as a data field, then try to return it | |
1300 | as a pointer to a method. */ | |
1301 | ||
1302 | for (i = TYPE_NFN_FIELDS (type) - 1; i >= 0; --i) | |
1303 | { | |
1304 | if (strcmp_iw (TYPE_FN_FIELDLIST_NAME (type, i), name) == 0) | |
1993b719 TT |
1305 | { |
1306 | is_a_field_of_this->type = type; | |
1307 | is_a_field_of_this->fn_field = &TYPE_FN_FIELDLIST (type, i); | |
1308 | return 1; | |
1309 | } | |
2dc3df72 TT |
1310 | } |
1311 | ||
1312 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1993b719 | 1313 | if (check_field (TYPE_BASECLASS (type, i), name, is_a_field_of_this)) |
2dc3df72 TT |
1314 | return 1; |
1315 | ||
1316 | return 0; | |
1317 | } | |
1318 | ||
53c5240f | 1319 | /* Behave like lookup_symbol except that NAME is the natural name |
7e082072 | 1320 | (e.g., demangled name) of the symbol that we're looking for. */ |
5ad1c190 | 1321 | |
fba7f19c | 1322 | static struct symbol * |
94af9270 KS |
1323 | lookup_symbol_aux (const char *name, const struct block *block, |
1324 | const domain_enum domain, enum language language, | |
1993b719 | 1325 | struct field_of_this_result *is_a_field_of_this) |
fba7f19c | 1326 | { |
8155455b | 1327 | struct symbol *sym; |
53c5240f | 1328 | const struct language_defn *langdef; |
406bc4de | 1329 | |
9a146a11 EZ |
1330 | /* Make sure we do something sensible with is_a_field_of_this, since |
1331 | the callers that set this parameter to some non-null value will | |
1993b719 TT |
1332 | certainly use it later. If we don't set it, the contents of |
1333 | is_a_field_of_this are undefined. */ | |
9a146a11 | 1334 | if (is_a_field_of_this != NULL) |
1993b719 | 1335 | memset (is_a_field_of_this, 0, sizeof (*is_a_field_of_this)); |
9a146a11 | 1336 | |
e4051eeb DC |
1337 | /* Search specified block and its superiors. Don't search |
1338 | STATIC_BLOCK or GLOBAL_BLOCK. */ | |
c906108c | 1339 | |
13387711 | 1340 | sym = lookup_symbol_aux_local (name, block, domain, language); |
8155455b DC |
1341 | if (sym != NULL) |
1342 | return sym; | |
c906108c | 1343 | |
53c5240f | 1344 | /* If requested to do so by the caller and if appropriate for LANGUAGE, |
13387711 | 1345 | check to see if NAME is a field of `this'. */ |
53c5240f PA |
1346 | |
1347 | langdef = language_def (language); | |
5f9a71c3 | 1348 | |
6592e36f TT |
1349 | /* Don't do this check if we are searching for a struct. It will |
1350 | not be found by check_field, but will be found by other | |
1351 | means. */ | |
1352 | if (is_a_field_of_this != NULL && domain != STRUCT_DOMAIN) | |
c906108c | 1353 | { |
66a17cb6 | 1354 | struct symbol *sym = lookup_language_this (langdef, block); |
2b2d9e11 | 1355 | |
2b2d9e11 | 1356 | if (sym) |
c906108c | 1357 | { |
2b2d9e11 | 1358 | struct type *t = sym->type; |
9af17804 | 1359 | |
2b2d9e11 VP |
1360 | /* I'm not really sure that type of this can ever |
1361 | be typedefed; just be safe. */ | |
1362 | CHECK_TYPEDEF (t); | |
1363 | if (TYPE_CODE (t) == TYPE_CODE_PTR | |
1364 | || TYPE_CODE (t) == TYPE_CODE_REF) | |
1365 | t = TYPE_TARGET_TYPE (t); | |
9af17804 | 1366 | |
2b2d9e11 VP |
1367 | if (TYPE_CODE (t) != TYPE_CODE_STRUCT |
1368 | && TYPE_CODE (t) != TYPE_CODE_UNION) | |
9af17804 | 1369 | error (_("Internal error: `%s' is not an aggregate"), |
2b2d9e11 | 1370 | langdef->la_name_of_this); |
9af17804 | 1371 | |
1993b719 TT |
1372 | if (check_field (t, name, is_a_field_of_this)) |
1373 | return NULL; | |
c906108c SS |
1374 | } |
1375 | } | |
1376 | ||
53c5240f | 1377 | /* Now do whatever is appropriate for LANGUAGE to look |
774b6a14 | 1378 | up static and global variables. */ |
c906108c | 1379 | |
774b6a14 TT |
1380 | sym = langdef->la_lookup_symbol_nonlocal (name, block, domain); |
1381 | if (sym != NULL) | |
1382 | return sym; | |
c906108c | 1383 | |
774b6a14 TT |
1384 | /* Now search all static file-level symbols. Not strictly correct, |
1385 | but more useful than an error. */ | |
41f62f39 JK |
1386 | |
1387 | return lookup_static_symbol_aux (name, domain); | |
1388 | } | |
1389 | ||
1390 | /* Search all static file-level symbols for NAME from DOMAIN. Do the symtabs | |
1391 | first, then check the psymtabs. If a psymtab indicates the existence of the | |
1392 | desired name as a file-level static, then do psymtab-to-symtab conversion on | |
c378eb4e | 1393 | the fly and return the found symbol. */ |
41f62f39 JK |
1394 | |
1395 | struct symbol * | |
1396 | lookup_static_symbol_aux (const char *name, const domain_enum domain) | |
1397 | { | |
1398 | struct objfile *objfile; | |
1399 | struct symbol *sym; | |
c906108c | 1400 | |
67ff19f7 | 1401 | sym = lookup_symbol_aux_symtabs (STATIC_BLOCK, name, domain); |
8155455b DC |
1402 | if (sym != NULL) |
1403 | return sym; | |
9af17804 | 1404 | |
ccefe4c4 TT |
1405 | ALL_OBJFILES (objfile) |
1406 | { | |
1407 | sym = lookup_symbol_aux_quick (objfile, STATIC_BLOCK, name, domain); | |
1408 | if (sym != NULL) | |
1409 | return sym; | |
1410 | } | |
c906108c | 1411 | |
8155455b | 1412 | return NULL; |
c906108c | 1413 | } |
8155455b | 1414 | |
e4051eeb | 1415 | /* Check to see if the symbol is defined in BLOCK or its superiors. |
89a9d1b1 | 1416 | Don't search STATIC_BLOCK or GLOBAL_BLOCK. */ |
8155455b DC |
1417 | |
1418 | static struct symbol * | |
94af9270 | 1419 | lookup_symbol_aux_local (const char *name, const struct block *block, |
13387711 SW |
1420 | const domain_enum domain, |
1421 | enum language language) | |
8155455b DC |
1422 | { |
1423 | struct symbol *sym; | |
89a9d1b1 | 1424 | const struct block *static_block = block_static_block (block); |
13387711 SW |
1425 | const char *scope = block_scope (block); |
1426 | ||
e4051eeb DC |
1427 | /* Check if either no block is specified or it's a global block. */ |
1428 | ||
89a9d1b1 DC |
1429 | if (static_block == NULL) |
1430 | return NULL; | |
e4051eeb | 1431 | |
89a9d1b1 | 1432 | while (block != static_block) |
f61e8913 | 1433 | { |
94af9270 | 1434 | sym = lookup_symbol_aux_block (name, block, domain); |
f61e8913 DC |
1435 | if (sym != NULL) |
1436 | return sym; | |
edb3359d | 1437 | |
f55ee35c | 1438 | if (language == language_cplus || language == language_fortran) |
13387711 | 1439 | { |
34eaf542 TT |
1440 | sym = cp_lookup_symbol_imports_or_template (scope, name, block, |
1441 | domain); | |
13387711 SW |
1442 | if (sym != NULL) |
1443 | return sym; | |
1444 | } | |
1445 | ||
edb3359d DJ |
1446 | if (BLOCK_FUNCTION (block) != NULL && block_inlined_p (block)) |
1447 | break; | |
f61e8913 DC |
1448 | block = BLOCK_SUPERBLOCK (block); |
1449 | } | |
1450 | ||
edb3359d | 1451 | /* We've reached the edge of the function without finding a result. */ |
e4051eeb | 1452 | |
f61e8913 DC |
1453 | return NULL; |
1454 | } | |
1455 | ||
3a40aaa0 UW |
1456 | /* Look up OBJFILE to BLOCK. */ |
1457 | ||
c0201579 | 1458 | struct objfile * |
3a40aaa0 UW |
1459 | lookup_objfile_from_block (const struct block *block) |
1460 | { | |
1461 | struct objfile *obj; | |
1462 | struct symtab *s; | |
1463 | ||
1464 | if (block == NULL) | |
1465 | return NULL; | |
1466 | ||
1467 | block = block_global_block (block); | |
1468 | /* Go through SYMTABS. */ | |
1469 | ALL_SYMTABS (obj, s) | |
1470 | if (block == BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK)) | |
61f0d762 JK |
1471 | { |
1472 | if (obj->separate_debug_objfile_backlink) | |
1473 | obj = obj->separate_debug_objfile_backlink; | |
1474 | ||
1475 | return obj; | |
1476 | } | |
3a40aaa0 UW |
1477 | |
1478 | return NULL; | |
1479 | } | |
1480 | ||
6c9353d3 PA |
1481 | /* Look up a symbol in a block; if found, fixup the symbol, and set |
1482 | block_found appropriately. */ | |
f61e8913 | 1483 | |
5f9a71c3 | 1484 | struct symbol * |
94af9270 | 1485 | lookup_symbol_aux_block (const char *name, const struct block *block, |
21b556f4 | 1486 | const domain_enum domain) |
f61e8913 DC |
1487 | { |
1488 | struct symbol *sym; | |
f61e8913 | 1489 | |
94af9270 | 1490 | sym = lookup_block_symbol (block, name, domain); |
f61e8913 | 1491 | if (sym) |
8155455b | 1492 | { |
f61e8913 | 1493 | block_found = block; |
21b556f4 | 1494 | return fixup_symbol_section (sym, NULL); |
8155455b DC |
1495 | } |
1496 | ||
1497 | return NULL; | |
1498 | } | |
1499 | ||
3a40aaa0 UW |
1500 | /* Check all global symbols in OBJFILE in symtabs and |
1501 | psymtabs. */ | |
1502 | ||
1503 | struct symbol * | |
15d123c9 | 1504 | lookup_global_symbol_from_objfile (const struct objfile *main_objfile, |
3a40aaa0 | 1505 | const char *name, |
21b556f4 | 1506 | const domain_enum domain) |
3a40aaa0 | 1507 | { |
15d123c9 | 1508 | const struct objfile *objfile; |
3a40aaa0 UW |
1509 | struct symbol *sym; |
1510 | struct blockvector *bv; | |
1511 | const struct block *block; | |
1512 | struct symtab *s; | |
3a40aaa0 | 1513 | |
15d123c9 TG |
1514 | for (objfile = main_objfile; |
1515 | objfile; | |
1516 | objfile = objfile_separate_debug_iterate (main_objfile, objfile)) | |
1517 | { | |
1518 | /* Go through symtabs. */ | |
78e5175a DE |
1519 | ALL_OBJFILE_PRIMARY_SYMTABS (objfile, s) |
1520 | { | |
1521 | bv = BLOCKVECTOR (s); | |
1522 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
1523 | sym = lookup_block_symbol (block, name, domain); | |
1524 | if (sym) | |
1525 | { | |
1526 | block_found = block; | |
1527 | return fixup_symbol_section (sym, (struct objfile *)objfile); | |
1528 | } | |
1529 | } | |
15d123c9 | 1530 | |
ccefe4c4 TT |
1531 | sym = lookup_symbol_aux_quick ((struct objfile *) objfile, GLOBAL_BLOCK, |
1532 | name, domain); | |
1533 | if (sym) | |
1534 | return sym; | |
15d123c9 | 1535 | } |
56e3f43c | 1536 | |
3a40aaa0 UW |
1537 | return NULL; |
1538 | } | |
1539 | ||
19630284 JB |
1540 | /* Check to see if the symbol is defined in one of the OBJFILE's |
1541 | symtabs. BLOCK_INDEX should be either GLOBAL_BLOCK or STATIC_BLOCK, | |
8155455b DC |
1542 | depending on whether or not we want to search global symbols or |
1543 | static symbols. */ | |
1544 | ||
19630284 JB |
1545 | static struct symbol * |
1546 | lookup_symbol_aux_objfile (struct objfile *objfile, int block_index, | |
1547 | const char *name, const domain_enum domain) | |
1548 | { | |
1549 | struct symbol *sym = NULL; | |
1550 | struct blockvector *bv; | |
1551 | const struct block *block; | |
1552 | struct symtab *s; | |
1553 | ||
1554 | if (objfile->sf) | |
1555 | objfile->sf->qf->pre_expand_symtabs_matching (objfile, block_index, | |
1556 | name, domain); | |
1557 | ||
a743abeb DE |
1558 | ALL_OBJFILE_PRIMARY_SYMTABS (objfile, s) |
1559 | { | |
1560 | bv = BLOCKVECTOR (s); | |
1561 | block = BLOCKVECTOR_BLOCK (bv, block_index); | |
1562 | sym = lookup_block_symbol (block, name, domain); | |
1563 | if (sym) | |
1564 | { | |
1565 | block_found = block; | |
1566 | return fixup_symbol_section (sym, objfile); | |
1567 | } | |
1568 | } | |
19630284 JB |
1569 | |
1570 | return NULL; | |
1571 | } | |
1572 | ||
1573 | /* Same as lookup_symbol_aux_objfile, except that it searches all | |
1574 | objfiles. Return the first match found. */ | |
1575 | ||
8155455b | 1576 | static struct symbol * |
67ff19f7 JB |
1577 | lookup_symbol_aux_symtabs (int block_index, const char *name, |
1578 | const domain_enum domain) | |
8155455b | 1579 | { |
67ff19f7 JB |
1580 | struct symbol *sym; |
1581 | struct objfile *objfile; | |
8155455b | 1582 | |
67ff19f7 JB |
1583 | ALL_OBJFILES (objfile) |
1584 | { | |
19630284 JB |
1585 | sym = lookup_symbol_aux_objfile (objfile, block_index, name, domain); |
1586 | if (sym) | |
1587 | return sym; | |
8155455b DC |
1588 | } |
1589 | ||
1590 | return NULL; | |
1591 | } | |
1592 | ||
422d65e7 DE |
1593 | /* Wrapper around lookup_symbol_aux_objfile for search_symbols. |
1594 | Look up LINKAGE_NAME in DOMAIN in the global and static blocks of OBJFILE | |
1595 | and all related objfiles. */ | |
1596 | ||
1597 | static struct symbol * | |
1598 | lookup_symbol_in_objfile_from_linkage_name (struct objfile *objfile, | |
1599 | const char *linkage_name, | |
1600 | domain_enum domain) | |
1601 | { | |
1602 | enum language lang = current_language->la_language; | |
1603 | const char *modified_name; | |
1604 | struct cleanup *cleanup = demangle_for_lookup (linkage_name, lang, | |
1605 | &modified_name); | |
1606 | struct objfile *main_objfile, *cur_objfile; | |
1607 | ||
1608 | if (objfile->separate_debug_objfile_backlink) | |
1609 | main_objfile = objfile->separate_debug_objfile_backlink; | |
1610 | else | |
1611 | main_objfile = objfile; | |
1612 | ||
1613 | for (cur_objfile = main_objfile; | |
1614 | cur_objfile; | |
1615 | cur_objfile = objfile_separate_debug_iterate (main_objfile, cur_objfile)) | |
1616 | { | |
1617 | struct symbol *sym; | |
1618 | ||
1619 | sym = lookup_symbol_aux_objfile (cur_objfile, GLOBAL_BLOCK, | |
1620 | modified_name, domain); | |
1621 | if (sym == NULL) | |
1622 | sym = lookup_symbol_aux_objfile (cur_objfile, STATIC_BLOCK, | |
1623 | modified_name, domain); | |
1624 | if (sym != NULL) | |
1625 | { | |
1626 | do_cleanups (cleanup); | |
1627 | return sym; | |
1628 | } | |
1629 | } | |
1630 | ||
1631 | do_cleanups (cleanup); | |
1632 | return NULL; | |
1633 | } | |
1634 | ||
ccefe4c4 TT |
1635 | /* A helper function for lookup_symbol_aux that interfaces with the |
1636 | "quick" symbol table functions. */ | |
8155455b DC |
1637 | |
1638 | static struct symbol * | |
ccefe4c4 TT |
1639 | lookup_symbol_aux_quick (struct objfile *objfile, int kind, |
1640 | const char *name, const domain_enum domain) | |
8155455b | 1641 | { |
ccefe4c4 | 1642 | struct symtab *symtab; |
8155455b DC |
1643 | struct blockvector *bv; |
1644 | const struct block *block; | |
ccefe4c4 | 1645 | struct symbol *sym; |
8155455b | 1646 | |
ccefe4c4 TT |
1647 | if (!objfile->sf) |
1648 | return NULL; | |
1649 | symtab = objfile->sf->qf->lookup_symbol (objfile, kind, name, domain); | |
1650 | if (!symtab) | |
1651 | return NULL; | |
8155455b | 1652 | |
ccefe4c4 TT |
1653 | bv = BLOCKVECTOR (symtab); |
1654 | block = BLOCKVECTOR_BLOCK (bv, kind); | |
1655 | sym = lookup_block_symbol (block, name, domain); | |
1656 | if (!sym) | |
1657 | { | |
1658 | /* This shouldn't be necessary, but as a last resort try | |
1659 | looking in the statics even though the psymtab claimed | |
c378eb4e | 1660 | the symbol was global, or vice-versa. It's possible |
ccefe4c4 TT |
1661 | that the psymtab gets it wrong in some cases. */ |
1662 | ||
1663 | /* FIXME: carlton/2002-09-30: Should we really do that? | |
1664 | If that happens, isn't it likely to be a GDB error, in | |
1665 | which case we should fix the GDB error rather than | |
1666 | silently dealing with it here? So I'd vote for | |
1667 | removing the check for the symbol in the other | |
1668 | block. */ | |
1669 | block = BLOCKVECTOR_BLOCK (bv, | |
1670 | kind == GLOBAL_BLOCK ? | |
1671 | STATIC_BLOCK : GLOBAL_BLOCK); | |
1672 | sym = lookup_block_symbol (block, name, domain); | |
1673 | if (!sym) | |
3e43a32a MS |
1674 | error (_("\ |
1675 | Internal: %s symbol `%s' found in %s psymtab but not in symtab.\n\ | |
1676 | %s may be an inlined function, or may be a template function\n\ | |
1677 | (if a template, try specifying an instantiation: %s<type>)."), | |
ccefe4c4 TT |
1678 | kind == GLOBAL_BLOCK ? "global" : "static", |
1679 | name, symtab->filename, name, name); | |
1680 | } | |
1681 | return fixup_symbol_section (sym, objfile); | |
8155455b DC |
1682 | } |
1683 | ||
5f9a71c3 DC |
1684 | /* A default version of lookup_symbol_nonlocal for use by languages |
1685 | that can't think of anything better to do. This implements the C | |
1686 | lookup rules. */ | |
1687 | ||
1688 | struct symbol * | |
1689 | basic_lookup_symbol_nonlocal (const char *name, | |
5f9a71c3 | 1690 | const struct block *block, |
21b556f4 | 1691 | const domain_enum domain) |
5f9a71c3 DC |
1692 | { |
1693 | struct symbol *sym; | |
1694 | ||
1695 | /* NOTE: carlton/2003-05-19: The comments below were written when | |
1696 | this (or what turned into this) was part of lookup_symbol_aux; | |
1697 | I'm much less worried about these questions now, since these | |
1698 | decisions have turned out well, but I leave these comments here | |
1699 | for posterity. */ | |
1700 | ||
1701 | /* NOTE: carlton/2002-12-05: There is a question as to whether or | |
1702 | not it would be appropriate to search the current global block | |
1703 | here as well. (That's what this code used to do before the | |
1704 | is_a_field_of_this check was moved up.) On the one hand, it's | |
1705 | redundant with the lookup_symbol_aux_symtabs search that happens | |
1706 | next. On the other hand, if decode_line_1 is passed an argument | |
1707 | like filename:var, then the user presumably wants 'var' to be | |
1708 | searched for in filename. On the third hand, there shouldn't be | |
1709 | multiple global variables all of which are named 'var', and it's | |
1710 | not like decode_line_1 has ever restricted its search to only | |
1711 | global variables in a single filename. All in all, only | |
1712 | searching the static block here seems best: it's correct and it's | |
1713 | cleanest. */ | |
1714 | ||
1715 | /* NOTE: carlton/2002-12-05: There's also a possible performance | |
1716 | issue here: if you usually search for global symbols in the | |
1717 | current file, then it would be slightly better to search the | |
1718 | current global block before searching all the symtabs. But there | |
1719 | are other factors that have a much greater effect on performance | |
1720 | than that one, so I don't think we should worry about that for | |
1721 | now. */ | |
1722 | ||
94af9270 | 1723 | sym = lookup_symbol_static (name, block, domain); |
5f9a71c3 DC |
1724 | if (sym != NULL) |
1725 | return sym; | |
1726 | ||
94af9270 | 1727 | return lookup_symbol_global (name, block, domain); |
5f9a71c3 DC |
1728 | } |
1729 | ||
1730 | /* Lookup a symbol in the static block associated to BLOCK, if there | |
1731 | is one; do nothing if BLOCK is NULL or a global block. */ | |
1732 | ||
1733 | struct symbol * | |
1734 | lookup_symbol_static (const char *name, | |
5f9a71c3 | 1735 | const struct block *block, |
21b556f4 | 1736 | const domain_enum domain) |
5f9a71c3 DC |
1737 | { |
1738 | const struct block *static_block = block_static_block (block); | |
1739 | ||
1740 | if (static_block != NULL) | |
94af9270 | 1741 | return lookup_symbol_aux_block (name, static_block, domain); |
5f9a71c3 DC |
1742 | else |
1743 | return NULL; | |
1744 | } | |
1745 | ||
19630284 JB |
1746 | /* Private data to be used with lookup_symbol_global_iterator_cb. */ |
1747 | ||
1748 | struct global_sym_lookup_data | |
1749 | { | |
1750 | /* The name of the symbol we are searching for. */ | |
1751 | const char *name; | |
1752 | ||
1753 | /* The domain to use for our search. */ | |
1754 | domain_enum domain; | |
1755 | ||
1756 | /* The field where the callback should store the symbol if found. | |
1757 | It should be initialized to NULL before the search is started. */ | |
1758 | struct symbol *result; | |
1759 | }; | |
1760 | ||
1761 | /* A callback function for gdbarch_iterate_over_objfiles_in_search_order. | |
1762 | It searches by name for a symbol in the GLOBAL_BLOCK of the given | |
1763 | OBJFILE. The arguments for the search are passed via CB_DATA, | |
1764 | which in reality is a pointer to struct global_sym_lookup_data. */ | |
1765 | ||
1766 | static int | |
1767 | lookup_symbol_global_iterator_cb (struct objfile *objfile, | |
1768 | void *cb_data) | |
1769 | { | |
1770 | struct global_sym_lookup_data *data = | |
1771 | (struct global_sym_lookup_data *) cb_data; | |
1772 | ||
1773 | gdb_assert (data->result == NULL); | |
1774 | ||
1775 | data->result = lookup_symbol_aux_objfile (objfile, GLOBAL_BLOCK, | |
1776 | data->name, data->domain); | |
1777 | if (data->result == NULL) | |
1778 | data->result = lookup_symbol_aux_quick (objfile, GLOBAL_BLOCK, | |
1779 | data->name, data->domain); | |
1780 | ||
1781 | /* If we found a match, tell the iterator to stop. Otherwise, | |
1782 | keep going. */ | |
1783 | return (data->result != NULL); | |
1784 | } | |
1785 | ||
5f9a71c3 DC |
1786 | /* Lookup a symbol in all files' global blocks (searching psymtabs if |
1787 | necessary). */ | |
1788 | ||
1789 | struct symbol * | |
1790 | lookup_symbol_global (const char *name, | |
3a40aaa0 | 1791 | const struct block *block, |
21b556f4 | 1792 | const domain_enum domain) |
5f9a71c3 | 1793 | { |
3a40aaa0 UW |
1794 | struct symbol *sym = NULL; |
1795 | struct objfile *objfile = NULL; | |
19630284 | 1796 | struct global_sym_lookup_data lookup_data; |
3a40aaa0 UW |
1797 | |
1798 | /* Call library-specific lookup procedure. */ | |
67ff19f7 JB |
1799 | objfile = lookup_objfile_from_block (block); |
1800 | if (objfile != NULL) | |
1801 | sym = solib_global_lookup (objfile, name, domain); | |
3a40aaa0 UW |
1802 | if (sym != NULL) |
1803 | return sym; | |
5f9a71c3 | 1804 | |
19630284 JB |
1805 | memset (&lookup_data, 0, sizeof (lookup_data)); |
1806 | lookup_data.name = name; | |
1807 | lookup_data.domain = domain; | |
1808 | gdbarch_iterate_over_objfiles_in_search_order | |
f5656ead | 1809 | (objfile != NULL ? get_objfile_arch (objfile) : target_gdbarch (), |
19630284 | 1810 | lookup_symbol_global_iterator_cb, &lookup_data, objfile); |
5f9a71c3 | 1811 | |
19630284 | 1812 | return lookup_data.result; |
5f9a71c3 DC |
1813 | } |
1814 | ||
5eeb2539 | 1815 | int |
9af17804 | 1816 | symbol_matches_domain (enum language symbol_language, |
5eeb2539 AR |
1817 | domain_enum symbol_domain, |
1818 | domain_enum domain) | |
1819 | { | |
9af17804 | 1820 | /* For C++ "struct foo { ... }" also defines a typedef for "foo". |
5eeb2539 AR |
1821 | A Java class declaration also defines a typedef for the class. |
1822 | Similarly, any Ada type declaration implicitly defines a typedef. */ | |
1823 | if (symbol_language == language_cplus | |
6aecb9c2 | 1824 | || symbol_language == language_d |
5eeb2539 AR |
1825 | || symbol_language == language_java |
1826 | || symbol_language == language_ada) | |
1827 | { | |
1828 | if ((domain == VAR_DOMAIN || domain == STRUCT_DOMAIN) | |
1829 | && symbol_domain == STRUCT_DOMAIN) | |
1830 | return 1; | |
1831 | } | |
1832 | /* For all other languages, strict match is required. */ | |
1833 | return (symbol_domain == domain); | |
1834 | } | |
1835 | ||
ccefe4c4 TT |
1836 | /* Look up a type named NAME in the struct_domain. The type returned |
1837 | must not be opaque -- i.e., must have at least one field | |
1838 | defined. */ | |
c906108c | 1839 | |
ccefe4c4 TT |
1840 | struct type * |
1841 | lookup_transparent_type (const char *name) | |
c906108c | 1842 | { |
ccefe4c4 TT |
1843 | return current_language->la_lookup_transparent_type (name); |
1844 | } | |
9af17804 | 1845 | |
ccefe4c4 TT |
1846 | /* A helper for basic_lookup_transparent_type that interfaces with the |
1847 | "quick" symbol table functions. */ | |
357e46e7 | 1848 | |
ccefe4c4 TT |
1849 | static struct type * |
1850 | basic_lookup_transparent_type_quick (struct objfile *objfile, int kind, | |
1851 | const char *name) | |
1852 | { | |
1853 | struct symtab *symtab; | |
1854 | struct blockvector *bv; | |
1855 | struct block *block; | |
1856 | struct symbol *sym; | |
c906108c | 1857 | |
ccefe4c4 TT |
1858 | if (!objfile->sf) |
1859 | return NULL; | |
1860 | symtab = objfile->sf->qf->lookup_symbol (objfile, kind, name, STRUCT_DOMAIN); | |
1861 | if (!symtab) | |
1862 | return NULL; | |
c906108c | 1863 | |
ccefe4c4 TT |
1864 | bv = BLOCKVECTOR (symtab); |
1865 | block = BLOCKVECTOR_BLOCK (bv, kind); | |
1866 | sym = lookup_block_symbol (block, name, STRUCT_DOMAIN); | |
1867 | if (!sym) | |
9af17804 | 1868 | { |
ccefe4c4 TT |
1869 | int other_kind = kind == GLOBAL_BLOCK ? STATIC_BLOCK : GLOBAL_BLOCK; |
1870 | ||
1871 | /* This shouldn't be necessary, but as a last resort | |
1872 | * try looking in the 'other kind' even though the psymtab | |
c378eb4e | 1873 | * claimed the symbol was one thing. It's possible that |
ccefe4c4 TT |
1874 | * the psymtab gets it wrong in some cases. |
1875 | */ | |
1876 | block = BLOCKVECTOR_BLOCK (bv, other_kind); | |
1877 | sym = lookup_block_symbol (block, name, STRUCT_DOMAIN); | |
1878 | if (!sym) | |
c378eb4e | 1879 | /* FIXME; error is wrong in one case. */ |
3e43a32a MS |
1880 | error (_("\ |
1881 | Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\ | |
ccefe4c4 TT |
1882 | %s may be an inlined function, or may be a template function\n\ |
1883 | (if a template, try specifying an instantiation: %s<type>)."), | |
1884 | name, symtab->filename, name, name); | |
c906108c | 1885 | } |
ccefe4c4 TT |
1886 | if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))) |
1887 | return SYMBOL_TYPE (sym); | |
c906108c | 1888 | |
ccefe4c4 | 1889 | return NULL; |
b368761e | 1890 | } |
c906108c | 1891 | |
b368761e DC |
1892 | /* The standard implementation of lookup_transparent_type. This code |
1893 | was modeled on lookup_symbol -- the parts not relevant to looking | |
1894 | up types were just left out. In particular it's assumed here that | |
1895 | types are available in struct_domain and only at file-static or | |
1896 | global blocks. */ | |
c906108c SS |
1897 | |
1898 | struct type * | |
b368761e | 1899 | basic_lookup_transparent_type (const char *name) |
c906108c | 1900 | { |
52f0bd74 AC |
1901 | struct symbol *sym; |
1902 | struct symtab *s = NULL; | |
c906108c | 1903 | struct blockvector *bv; |
52f0bd74 AC |
1904 | struct objfile *objfile; |
1905 | struct block *block; | |
ccefe4c4 | 1906 | struct type *t; |
c906108c SS |
1907 | |
1908 | /* Now search all the global symbols. Do the symtab's first, then | |
c378eb4e | 1909 | check the psymtab's. If a psymtab indicates the existence |
c906108c SS |
1910 | of the desired name as a global, then do psymtab-to-symtab |
1911 | conversion on the fly and return the found symbol. */ | |
c5aa993b | 1912 | |
58b6ab13 | 1913 | ALL_OBJFILES (objfile) |
c5aa993b | 1914 | { |
774b6a14 TT |
1915 | if (objfile->sf) |
1916 | objfile->sf->qf->pre_expand_symtabs_matching (objfile, | |
1917 | GLOBAL_BLOCK, | |
1918 | name, STRUCT_DOMAIN); | |
1919 | ||
d790cf0a DE |
1920 | ALL_OBJFILE_PRIMARY_SYMTABS (objfile, s) |
1921 | { | |
1922 | bv = BLOCKVECTOR (s); | |
1923 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
1924 | sym = lookup_block_symbol (block, name, STRUCT_DOMAIN); | |
1925 | if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))) | |
1926 | { | |
1927 | return SYMBOL_TYPE (sym); | |
1928 | } | |
1929 | } | |
c5aa993b | 1930 | } |
c906108c | 1931 | |
ccefe4c4 | 1932 | ALL_OBJFILES (objfile) |
c5aa993b | 1933 | { |
ccefe4c4 TT |
1934 | t = basic_lookup_transparent_type_quick (objfile, GLOBAL_BLOCK, name); |
1935 | if (t) | |
1936 | return t; | |
c5aa993b | 1937 | } |
c906108c SS |
1938 | |
1939 | /* Now search the static file-level symbols. | |
1940 | Not strictly correct, but more useful than an error. | |
1941 | Do the symtab's first, then | |
c378eb4e | 1942 | check the psymtab's. If a psymtab indicates the existence |
c906108c | 1943 | of the desired name as a file-level static, then do psymtab-to-symtab |
c378eb4e | 1944 | conversion on the fly and return the found symbol. */ |
c906108c | 1945 | |
54ec275a | 1946 | ALL_OBJFILES (objfile) |
c5aa993b | 1947 | { |
774b6a14 TT |
1948 | if (objfile->sf) |
1949 | objfile->sf->qf->pre_expand_symtabs_matching (objfile, STATIC_BLOCK, | |
1950 | name, STRUCT_DOMAIN); | |
1951 | ||
78e5175a | 1952 | ALL_OBJFILE_PRIMARY_SYMTABS (objfile, s) |
c5aa993b | 1953 | { |
54ec275a KS |
1954 | bv = BLOCKVECTOR (s); |
1955 | block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
1956 | sym = lookup_block_symbol (block, name, STRUCT_DOMAIN); | |
1957 | if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))) | |
1958 | { | |
1959 | return SYMBOL_TYPE (sym); | |
1960 | } | |
c5aa993b JM |
1961 | } |
1962 | } | |
c906108c | 1963 | |
ccefe4c4 | 1964 | ALL_OBJFILES (objfile) |
c5aa993b | 1965 | { |
ccefe4c4 TT |
1966 | t = basic_lookup_transparent_type_quick (objfile, STATIC_BLOCK, name); |
1967 | if (t) | |
1968 | return t; | |
c5aa993b | 1969 | } |
ccefe4c4 | 1970 | |
c906108c SS |
1971 | return (struct type *) 0; |
1972 | } | |
1973 | ||
c378eb4e | 1974 | /* Find the name of the file containing main(). */ |
c906108c | 1975 | /* FIXME: What about languages without main() or specially linked |
c378eb4e | 1976 | executables that have no main() ? */ |
c906108c | 1977 | |
dd786858 | 1978 | const char * |
ccefe4c4 | 1979 | find_main_filename (void) |
c906108c | 1980 | { |
52f0bd74 | 1981 | struct objfile *objfile; |
dd786858 | 1982 | char *name = main_name (); |
c906108c | 1983 | |
ccefe4c4 | 1984 | ALL_OBJFILES (objfile) |
c5aa993b | 1985 | { |
dd786858 TT |
1986 | const char *result; |
1987 | ||
ccefe4c4 TT |
1988 | if (!objfile->sf) |
1989 | continue; | |
1990 | result = objfile->sf->qf->find_symbol_file (objfile, name); | |
1991 | if (result) | |
1992 | return result; | |
c5aa993b | 1993 | } |
c906108c SS |
1994 | return (NULL); |
1995 | } | |
1996 | ||
176620f1 | 1997 | /* Search BLOCK for symbol NAME in DOMAIN. |
c906108c SS |
1998 | |
1999 | Note that if NAME is the demangled form of a C++ symbol, we will fail | |
2000 | to find a match during the binary search of the non-encoded names, but | |
2001 | for now we don't worry about the slight inefficiency of looking for | |
2002 | a match we'll never find, since it will go pretty quick. Once the | |
2003 | binary search terminates, we drop through and do a straight linear | |
1bae87b9 | 2004 | search on the symbols. Each symbol which is marked as being a ObjC/C++ |
9af17804 | 2005 | symbol (language_cplus or language_objc set) has both the encoded and |
c378eb4e | 2006 | non-encoded names tested for a match. */ |
c906108c SS |
2007 | |
2008 | struct symbol * | |
aa1ee363 | 2009 | lookup_block_symbol (const struct block *block, const char *name, |
176620f1 | 2010 | const domain_enum domain) |
c906108c | 2011 | { |
8157b174 | 2012 | struct block_iterator iter; |
de4f826b | 2013 | struct symbol *sym; |
c906108c | 2014 | |
de4f826b | 2015 | if (!BLOCK_FUNCTION (block)) |
261397f8 | 2016 | { |
8157b174 | 2017 | for (sym = block_iter_name_first (block, name, &iter); |
de4f826b | 2018 | sym != NULL; |
8157b174 | 2019 | sym = block_iter_name_next (name, &iter)) |
261397f8 | 2020 | { |
5eeb2539 | 2021 | if (symbol_matches_domain (SYMBOL_LANGUAGE (sym), |
94af9270 | 2022 | SYMBOL_DOMAIN (sym), domain)) |
261397f8 DJ |
2023 | return sym; |
2024 | } | |
2025 | return NULL; | |
2026 | } | |
526e70c0 | 2027 | else |
c906108c | 2028 | { |
526e70c0 DC |
2029 | /* Note that parameter symbols do not always show up last in the |
2030 | list; this loop makes sure to take anything else other than | |
2031 | parameter symbols first; it only uses parameter symbols as a | |
2032 | last resort. Note that this only takes up extra computation | |
2033 | time on a match. */ | |
de4f826b DC |
2034 | |
2035 | struct symbol *sym_found = NULL; | |
2036 | ||
8157b174 | 2037 | for (sym = block_iter_name_first (block, name, &iter); |
de4f826b | 2038 | sym != NULL; |
8157b174 | 2039 | sym = block_iter_name_next (name, &iter)) |
c906108c | 2040 | { |
5eeb2539 | 2041 | if (symbol_matches_domain (SYMBOL_LANGUAGE (sym), |
94af9270 | 2042 | SYMBOL_DOMAIN (sym), domain)) |
c906108c | 2043 | { |
c906108c | 2044 | sym_found = sym; |
2a2d4dc3 | 2045 | if (!SYMBOL_IS_ARGUMENT (sym)) |
c906108c SS |
2046 | { |
2047 | break; | |
2048 | } | |
2049 | } | |
c906108c | 2050 | } |
c378eb4e | 2051 | return (sym_found); /* Will be NULL if not found. */ |
c906108c | 2052 | } |
c906108c SS |
2053 | } |
2054 | ||
f8eba3c6 TT |
2055 | /* Iterate over the symbols named NAME, matching DOMAIN, starting with |
2056 | BLOCK. | |
2057 | ||
2058 | For each symbol that matches, CALLBACK is called. The symbol and | |
2059 | DATA are passed to the callback. | |
2060 | ||
2061 | If CALLBACK returns zero, the iteration ends. Otherwise, the | |
2062 | search continues. This function iterates upward through blocks. | |
2063 | When the outermost block has been finished, the function | |
2064 | returns. */ | |
2065 | ||
2066 | void | |
2067 | iterate_over_symbols (const struct block *block, const char *name, | |
2068 | const domain_enum domain, | |
8e704927 | 2069 | symbol_found_callback_ftype *callback, |
f8eba3c6 TT |
2070 | void *data) |
2071 | { | |
2072 | while (block) | |
2073 | { | |
8157b174 | 2074 | struct block_iterator iter; |
f8eba3c6 TT |
2075 | struct symbol *sym; |
2076 | ||
8157b174 | 2077 | for (sym = block_iter_name_first (block, name, &iter); |
f8eba3c6 | 2078 | sym != NULL; |
8157b174 | 2079 | sym = block_iter_name_next (name, &iter)) |
f8eba3c6 TT |
2080 | { |
2081 | if (symbol_matches_domain (SYMBOL_LANGUAGE (sym), | |
2082 | SYMBOL_DOMAIN (sym), domain)) | |
2083 | { | |
2084 | if (!callback (sym, data)) | |
2085 | return; | |
2086 | } | |
2087 | } | |
2088 | ||
2089 | block = BLOCK_SUPERBLOCK (block); | |
2090 | } | |
2091 | } | |
2092 | ||
c906108c | 2093 | /* Find the symtab associated with PC and SECTION. Look through the |
c378eb4e | 2094 | psymtabs and read in another symtab if necessary. */ |
c906108c SS |
2095 | |
2096 | struct symtab * | |
714835d5 | 2097 | find_pc_sect_symtab (CORE_ADDR pc, struct obj_section *section) |
c906108c | 2098 | { |
52f0bd74 | 2099 | struct block *b; |
c906108c | 2100 | struct blockvector *bv; |
52f0bd74 AC |
2101 | struct symtab *s = NULL; |
2102 | struct symtab *best_s = NULL; | |
52f0bd74 | 2103 | struct objfile *objfile; |
6c95b8df | 2104 | struct program_space *pspace; |
c906108c | 2105 | CORE_ADDR distance = 0; |
8a48e967 DJ |
2106 | struct minimal_symbol *msymbol; |
2107 | ||
6c95b8df PA |
2108 | pspace = current_program_space; |
2109 | ||
8a48e967 DJ |
2110 | /* If we know that this is not a text address, return failure. This is |
2111 | necessary because we loop based on the block's high and low code | |
2112 | addresses, which do not include the data ranges, and because | |
2113 | we call find_pc_sect_psymtab which has a similar restriction based | |
2114 | on the partial_symtab's texthigh and textlow. */ | |
2115 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); | |
2116 | if (msymbol | |
712f90be TT |
2117 | && (MSYMBOL_TYPE (msymbol) == mst_data |
2118 | || MSYMBOL_TYPE (msymbol) == mst_bss | |
2119 | || MSYMBOL_TYPE (msymbol) == mst_abs | |
2120 | || MSYMBOL_TYPE (msymbol) == mst_file_data | |
2121 | || MSYMBOL_TYPE (msymbol) == mst_file_bss)) | |
8a48e967 | 2122 | return NULL; |
c906108c SS |
2123 | |
2124 | /* Search all symtabs for the one whose file contains our address, and which | |
2125 | is the smallest of all the ones containing the address. This is designed | |
2126 | to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000 | |
2127 | and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from | |
2128 | 0x1000-0x4000, but for address 0x2345 we want to return symtab b. | |
2129 | ||
2130 | This happens for native ecoff format, where code from included files | |
c378eb4e | 2131 | gets its own symtab. The symtab for the included file should have |
c906108c SS |
2132 | been read in already via the dependency mechanism. |
2133 | It might be swifter to create several symtabs with the same name | |
2134 | like xcoff does (I'm not sure). | |
2135 | ||
2136 | It also happens for objfiles that have their functions reordered. | |
2137 | For these, the symtab we are looking for is not necessarily read in. */ | |
2138 | ||
11309657 | 2139 | ALL_PRIMARY_SYMTABS (objfile, s) |
c5aa993b JM |
2140 | { |
2141 | bv = BLOCKVECTOR (s); | |
2142 | b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
c906108c | 2143 | |
c5aa993b | 2144 | if (BLOCK_START (b) <= pc |
c5aa993b | 2145 | && BLOCK_END (b) > pc |
c5aa993b JM |
2146 | && (distance == 0 |
2147 | || BLOCK_END (b) - BLOCK_START (b) < distance)) | |
2148 | { | |
2149 | /* For an objfile that has its functions reordered, | |
2150 | find_pc_psymtab will find the proper partial symbol table | |
2151 | and we simply return its corresponding symtab. */ | |
2152 | /* In order to better support objfiles that contain both | |
2153 | stabs and coff debugging info, we continue on if a psymtab | |
c378eb4e | 2154 | can't be found. */ |
ccefe4c4 | 2155 | if ((objfile->flags & OBJF_REORDERED) && objfile->sf) |
c5aa993b | 2156 | { |
ccefe4c4 | 2157 | struct symtab *result; |
433759f7 | 2158 | |
ccefe4c4 TT |
2159 | result |
2160 | = objfile->sf->qf->find_pc_sect_symtab (objfile, | |
2161 | msymbol, | |
2162 | pc, section, | |
2163 | 0); | |
2164 | if (result) | |
2165 | return result; | |
c5aa993b JM |
2166 | } |
2167 | if (section != 0) | |
2168 | { | |
8157b174 | 2169 | struct block_iterator iter; |
261397f8 | 2170 | struct symbol *sym = NULL; |
c906108c | 2171 | |
de4f826b | 2172 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c5aa993b | 2173 | { |
261397f8 | 2174 | fixup_symbol_section (sym, objfile); |
714835d5 | 2175 | if (matching_obj_sections (SYMBOL_OBJ_SECTION (sym), section)) |
c5aa993b JM |
2176 | break; |
2177 | } | |
de4f826b | 2178 | if (sym == NULL) |
c378eb4e MS |
2179 | continue; /* No symbol in this symtab matches |
2180 | section. */ | |
c5aa993b JM |
2181 | } |
2182 | distance = BLOCK_END (b) - BLOCK_START (b); | |
2183 | best_s = s; | |
2184 | } | |
2185 | } | |
c906108c SS |
2186 | |
2187 | if (best_s != NULL) | |
c5aa993b | 2188 | return (best_s); |
c906108c | 2189 | |
072cabfe DE |
2190 | /* Not found in symtabs, search the "quick" symtabs (e.g. psymtabs). */ |
2191 | ||
ccefe4c4 TT |
2192 | ALL_OBJFILES (objfile) |
2193 | { | |
2194 | struct symtab *result; | |
433759f7 | 2195 | |
ccefe4c4 TT |
2196 | if (!objfile->sf) |
2197 | continue; | |
2198 | result = objfile->sf->qf->find_pc_sect_symtab (objfile, | |
2199 | msymbol, | |
2200 | pc, section, | |
2201 | 1); | |
2202 | if (result) | |
2203 | return result; | |
2204 | } | |
2205 | ||
2206 | return NULL; | |
c906108c SS |
2207 | } |
2208 | ||
c378eb4e MS |
2209 | /* Find the symtab associated with PC. Look through the psymtabs and read |
2210 | in another symtab if necessary. Backward compatibility, no section. */ | |
c906108c SS |
2211 | |
2212 | struct symtab * | |
fba45db2 | 2213 | find_pc_symtab (CORE_ADDR pc) |
c906108c SS |
2214 | { |
2215 | return find_pc_sect_symtab (pc, find_pc_mapped_section (pc)); | |
2216 | } | |
c906108c | 2217 | \f |
c5aa993b | 2218 | |
7e73cedf | 2219 | /* Find the source file and line number for a given PC value and SECTION. |
c906108c SS |
2220 | Return a structure containing a symtab pointer, a line number, |
2221 | and a pc range for the entire source line. | |
2222 | The value's .pc field is NOT the specified pc. | |
2223 | NOTCURRENT nonzero means, if specified pc is on a line boundary, | |
2224 | use the line that ends there. Otherwise, in that case, the line | |
2225 | that begins there is used. */ | |
2226 | ||
2227 | /* The big complication here is that a line may start in one file, and end just | |
2228 | before the start of another file. This usually occurs when you #include | |
2229 | code in the middle of a subroutine. To properly find the end of a line's PC | |
2230 | range, we must search all symtabs associated with this compilation unit, and | |
2231 | find the one whose first PC is closer than that of the next line in this | |
2232 | symtab. */ | |
2233 | ||
2234 | /* If it's worth the effort, we could be using a binary search. */ | |
2235 | ||
2236 | struct symtab_and_line | |
714835d5 | 2237 | find_pc_sect_line (CORE_ADDR pc, struct obj_section *section, int notcurrent) |
c906108c SS |
2238 | { |
2239 | struct symtab *s; | |
52f0bd74 AC |
2240 | struct linetable *l; |
2241 | int len; | |
2242 | int i; | |
2243 | struct linetable_entry *item; | |
c906108c SS |
2244 | struct symtab_and_line val; |
2245 | struct blockvector *bv; | |
2246 | struct minimal_symbol *msymbol; | |
2247 | struct minimal_symbol *mfunsym; | |
93b55aa1 | 2248 | struct objfile *objfile; |
c906108c SS |
2249 | |
2250 | /* Info on best line seen so far, and where it starts, and its file. */ | |
2251 | ||
2252 | struct linetable_entry *best = NULL; | |
2253 | CORE_ADDR best_end = 0; | |
2254 | struct symtab *best_symtab = 0; | |
2255 | ||
2256 | /* Store here the first line number | |
2257 | of a file which contains the line at the smallest pc after PC. | |
2258 | If we don't find a line whose range contains PC, | |
2259 | we will use a line one less than this, | |
2260 | with a range from the start of that file to the first line's pc. */ | |
2261 | struct linetable_entry *alt = NULL; | |
2262 | struct symtab *alt_symtab = 0; | |
2263 | ||
2264 | /* Info on best line seen in this file. */ | |
2265 | ||
2266 | struct linetable_entry *prev; | |
2267 | ||
2268 | /* If this pc is not from the current frame, | |
2269 | it is the address of the end of a call instruction. | |
2270 | Quite likely that is the start of the following statement. | |
2271 | But what we want is the statement containing the instruction. | |
2272 | Fudge the pc to make sure we get that. */ | |
2273 | ||
fe39c653 | 2274 | init_sal (&val); /* initialize to zeroes */ |
c906108c | 2275 | |
6c95b8df PA |
2276 | val.pspace = current_program_space; |
2277 | ||
b77b1eb7 JB |
2278 | /* It's tempting to assume that, if we can't find debugging info for |
2279 | any function enclosing PC, that we shouldn't search for line | |
2280 | number info, either. However, GAS can emit line number info for | |
2281 | assembly files --- very helpful when debugging hand-written | |
2282 | assembly code. In such a case, we'd have no debug info for the | |
2283 | function, but we would have line info. */ | |
648f4f79 | 2284 | |
c906108c SS |
2285 | if (notcurrent) |
2286 | pc -= 1; | |
2287 | ||
c5aa993b | 2288 | /* elz: added this because this function returned the wrong |
c906108c | 2289 | information if the pc belongs to a stub (import/export) |
c378eb4e | 2290 | to call a shlib function. This stub would be anywhere between |
9af17804 | 2291 | two functions in the target, and the line info was erroneously |
c378eb4e MS |
2292 | taken to be the one of the line before the pc. */ |
2293 | ||
c906108c | 2294 | /* RT: Further explanation: |
c5aa993b | 2295 | |
c906108c SS |
2296 | * We have stubs (trampolines) inserted between procedures. |
2297 | * | |
2298 | * Example: "shr1" exists in a shared library, and a "shr1" stub also | |
2299 | * exists in the main image. | |
2300 | * | |
2301 | * In the minimal symbol table, we have a bunch of symbols | |
c378eb4e | 2302 | * sorted by start address. The stubs are marked as "trampoline", |
c906108c SS |
2303 | * the others appear as text. E.g.: |
2304 | * | |
9af17804 | 2305 | * Minimal symbol table for main image |
c906108c SS |
2306 | * main: code for main (text symbol) |
2307 | * shr1: stub (trampoline symbol) | |
2308 | * foo: code for foo (text symbol) | |
2309 | * ... | |
2310 | * Minimal symbol table for "shr1" image: | |
2311 | * ... | |
2312 | * shr1: code for shr1 (text symbol) | |
2313 | * ... | |
2314 | * | |
2315 | * So the code below is trying to detect if we are in the stub | |
2316 | * ("shr1" stub), and if so, find the real code ("shr1" trampoline), | |
2317 | * and if found, do the symbolization from the real-code address | |
2318 | * rather than the stub address. | |
2319 | * | |
2320 | * Assumptions being made about the minimal symbol table: | |
2321 | * 1. lookup_minimal_symbol_by_pc() will return a trampoline only | |
c378eb4e | 2322 | * if we're really in the trampoline.s If we're beyond it (say |
9af17804 | 2323 | * we're in "foo" in the above example), it'll have a closer |
c906108c SS |
2324 | * symbol (the "foo" text symbol for example) and will not |
2325 | * return the trampoline. | |
2326 | * 2. lookup_minimal_symbol_text() will find a real text symbol | |
2327 | * corresponding to the trampoline, and whose address will | |
c378eb4e | 2328 | * be different than the trampoline address. I put in a sanity |
c906108c SS |
2329 | * check for the address being the same, to avoid an |
2330 | * infinite recursion. | |
2331 | */ | |
c5aa993b JM |
2332 | msymbol = lookup_minimal_symbol_by_pc (pc); |
2333 | if (msymbol != NULL) | |
c906108c | 2334 | if (MSYMBOL_TYPE (msymbol) == mst_solib_trampoline) |
c5aa993b | 2335 | { |
2335f48e | 2336 | mfunsym = lookup_minimal_symbol_text (SYMBOL_LINKAGE_NAME (msymbol), |
5520a790 | 2337 | NULL); |
c5aa993b JM |
2338 | if (mfunsym == NULL) |
2339 | /* I eliminated this warning since it is coming out | |
2340 | * in the following situation: | |
2341 | * gdb shmain // test program with shared libraries | |
2342 | * (gdb) break shr1 // function in shared lib | |
2343 | * Warning: In stub for ... | |
9af17804 | 2344 | * In the above situation, the shared lib is not loaded yet, |
c5aa993b JM |
2345 | * so of course we can't find the real func/line info, |
2346 | * but the "break" still works, and the warning is annoying. | |
c378eb4e | 2347 | * So I commented out the warning. RT */ |
3e43a32a | 2348 | /* warning ("In stub for %s; unable to find real function/line info", |
c378eb4e MS |
2349 | SYMBOL_LINKAGE_NAME (msymbol)); */ |
2350 | ; | |
c5aa993b | 2351 | /* fall through */ |
3e43a32a MS |
2352 | else if (SYMBOL_VALUE_ADDRESS (mfunsym) |
2353 | == SYMBOL_VALUE_ADDRESS (msymbol)) | |
c5aa993b | 2354 | /* Avoid infinite recursion */ |
c378eb4e | 2355 | /* See above comment about why warning is commented out. */ |
3e43a32a | 2356 | /* warning ("In stub for %s; unable to find real function/line info", |
c378eb4e MS |
2357 | SYMBOL_LINKAGE_NAME (msymbol)); */ |
2358 | ; | |
c5aa993b JM |
2359 | /* fall through */ |
2360 | else | |
82cf6c60 | 2361 | return find_pc_line (SYMBOL_VALUE_ADDRESS (mfunsym), 0); |
c5aa993b | 2362 | } |
c906108c SS |
2363 | |
2364 | ||
2365 | s = find_pc_sect_symtab (pc, section); | |
2366 | if (!s) | |
2367 | { | |
c378eb4e | 2368 | /* If no symbol information, return previous pc. */ |
c906108c SS |
2369 | if (notcurrent) |
2370 | pc++; | |
2371 | val.pc = pc; | |
2372 | return val; | |
2373 | } | |
2374 | ||
2375 | bv = BLOCKVECTOR (s); | |
93b55aa1 | 2376 | objfile = s->objfile; |
c906108c SS |
2377 | |
2378 | /* Look at all the symtabs that share this blockvector. | |
2379 | They all have the same apriori range, that we found was right; | |
2380 | but they have different line tables. */ | |
2381 | ||
93b55aa1 | 2382 | ALL_OBJFILE_SYMTABS (objfile, s) |
c906108c | 2383 | { |
93b55aa1 JK |
2384 | if (BLOCKVECTOR (s) != bv) |
2385 | continue; | |
2386 | ||
c906108c SS |
2387 | /* Find the best line in this symtab. */ |
2388 | l = LINETABLE (s); | |
2389 | if (!l) | |
c5aa993b | 2390 | continue; |
c906108c SS |
2391 | len = l->nitems; |
2392 | if (len <= 0) | |
2393 | { | |
2394 | /* I think len can be zero if the symtab lacks line numbers | |
2395 | (e.g. gcc -g1). (Either that or the LINETABLE is NULL; | |
2396 | I'm not sure which, and maybe it depends on the symbol | |
2397 | reader). */ | |
2398 | continue; | |
2399 | } | |
2400 | ||
2401 | prev = NULL; | |
c378eb4e | 2402 | item = l->item; /* Get first line info. */ |
c906108c SS |
2403 | |
2404 | /* Is this file's first line closer than the first lines of other files? | |
c5aa993b | 2405 | If so, record this file, and its first line, as best alternate. */ |
c906108c SS |
2406 | if (item->pc > pc && (!alt || item->pc < alt->pc)) |
2407 | { | |
2408 | alt = item; | |
2409 | alt_symtab = s; | |
2410 | } | |
2411 | ||
2412 | for (i = 0; i < len; i++, item++) | |
2413 | { | |
2414 | /* Leave prev pointing to the linetable entry for the last line | |
2415 | that started at or before PC. */ | |
2416 | if (item->pc > pc) | |
2417 | break; | |
2418 | ||
2419 | prev = item; | |
2420 | } | |
2421 | ||
2422 | /* At this point, prev points at the line whose start addr is <= pc, and | |
c5aa993b JM |
2423 | item points at the next line. If we ran off the end of the linetable |
2424 | (pc >= start of the last line), then prev == item. If pc < start of | |
2425 | the first line, prev will not be set. */ | |
c906108c SS |
2426 | |
2427 | /* Is this file's best line closer than the best in the other files? | |
083ae935 DJ |
2428 | If so, record this file, and its best line, as best so far. Don't |
2429 | save prev if it represents the end of a function (i.e. line number | |
2430 | 0) instead of a real line. */ | |
c906108c | 2431 | |
083ae935 | 2432 | if (prev && prev->line && (!best || prev->pc > best->pc)) |
c906108c SS |
2433 | { |
2434 | best = prev; | |
2435 | best_symtab = s; | |
25d53da1 KB |
2436 | |
2437 | /* Discard BEST_END if it's before the PC of the current BEST. */ | |
2438 | if (best_end <= best->pc) | |
2439 | best_end = 0; | |
c906108c | 2440 | } |
25d53da1 KB |
2441 | |
2442 | /* If another line (denoted by ITEM) is in the linetable and its | |
2443 | PC is after BEST's PC, but before the current BEST_END, then | |
2444 | use ITEM's PC as the new best_end. */ | |
2445 | if (best && i < len && item->pc > best->pc | |
2446 | && (best_end == 0 || best_end > item->pc)) | |
2447 | best_end = item->pc; | |
c906108c SS |
2448 | } |
2449 | ||
2450 | if (!best_symtab) | |
2451 | { | |
e86e87f7 DJ |
2452 | /* If we didn't find any line number info, just return zeros. |
2453 | We used to return alt->line - 1 here, but that could be | |
2454 | anywhere; if we don't have line number info for this PC, | |
2455 | don't make some up. */ | |
2456 | val.pc = pc; | |
c906108c | 2457 | } |
e8717518 FF |
2458 | else if (best->line == 0) |
2459 | { | |
2460 | /* If our best fit is in a range of PC's for which no line | |
2461 | number info is available (line number is zero) then we didn't | |
c378eb4e | 2462 | find any valid line information. */ |
e8717518 FF |
2463 | val.pc = pc; |
2464 | } | |
c906108c SS |
2465 | else |
2466 | { | |
2467 | val.symtab = best_symtab; | |
2468 | val.line = best->line; | |
2469 | val.pc = best->pc; | |
2470 | if (best_end && (!alt || best_end < alt->pc)) | |
2471 | val.end = best_end; | |
2472 | else if (alt) | |
2473 | val.end = alt->pc; | |
2474 | else | |
2475 | val.end = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); | |
2476 | } | |
2477 | val.section = section; | |
2478 | return val; | |
2479 | } | |
2480 | ||
c378eb4e | 2481 | /* Backward compatibility (no section). */ |
c906108c SS |
2482 | |
2483 | struct symtab_and_line | |
fba45db2 | 2484 | find_pc_line (CORE_ADDR pc, int notcurrent) |
c906108c | 2485 | { |
714835d5 | 2486 | struct obj_section *section; |
c906108c SS |
2487 | |
2488 | section = find_pc_overlay (pc); | |
2489 | if (pc_in_unmapped_range (pc, section)) | |
2490 | pc = overlay_mapped_address (pc, section); | |
2491 | return find_pc_sect_line (pc, section, notcurrent); | |
2492 | } | |
c906108c | 2493 | \f |
c906108c SS |
2494 | /* Find line number LINE in any symtab whose name is the same as |
2495 | SYMTAB. | |
2496 | ||
2497 | If found, return the symtab that contains the linetable in which it was | |
2498 | found, set *INDEX to the index in the linetable of the best entry | |
2499 | found, and set *EXACT_MATCH nonzero if the value returned is an | |
2500 | exact match. | |
2501 | ||
2502 | If not found, return NULL. */ | |
2503 | ||
50641945 | 2504 | struct symtab * |
433759f7 MS |
2505 | find_line_symtab (struct symtab *symtab, int line, |
2506 | int *index, int *exact_match) | |
c906108c | 2507 | { |
6f43c46f | 2508 | int exact = 0; /* Initialized here to avoid a compiler warning. */ |
c906108c SS |
2509 | |
2510 | /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE | |
2511 | so far seen. */ | |
2512 | ||
2513 | int best_index; | |
2514 | struct linetable *best_linetable; | |
2515 | struct symtab *best_symtab; | |
2516 | ||
2517 | /* First try looking it up in the given symtab. */ | |
2518 | best_linetable = LINETABLE (symtab); | |
2519 | best_symtab = symtab; | |
f8eba3c6 | 2520 | best_index = find_line_common (best_linetable, line, &exact, 0); |
c906108c SS |
2521 | if (best_index < 0 || !exact) |
2522 | { | |
2523 | /* Didn't find an exact match. So we better keep looking for | |
c5aa993b JM |
2524 | another symtab with the same name. In the case of xcoff, |
2525 | multiple csects for one source file (produced by IBM's FORTRAN | |
2526 | compiler) produce multiple symtabs (this is unavoidable | |
2527 | assuming csects can be at arbitrary places in memory and that | |
2528 | the GLOBAL_BLOCK of a symtab has a begin and end address). */ | |
c906108c SS |
2529 | |
2530 | /* BEST is the smallest linenumber > LINE so far seen, | |
c5aa993b JM |
2531 | or 0 if none has been seen so far. |
2532 | BEST_INDEX and BEST_LINETABLE identify the item for it. */ | |
c906108c SS |
2533 | int best; |
2534 | ||
2535 | struct objfile *objfile; | |
2536 | struct symtab *s; | |
2537 | ||
2538 | if (best_index >= 0) | |
2539 | best = best_linetable->item[best_index].line; | |
2540 | else | |
2541 | best = 0; | |
2542 | ||
ccefe4c4 | 2543 | ALL_OBJFILES (objfile) |
51432cca | 2544 | { |
ccefe4c4 TT |
2545 | if (objfile->sf) |
2546 | objfile->sf->qf->expand_symtabs_with_filename (objfile, | |
2547 | symtab->filename); | |
51432cca CES |
2548 | } |
2549 | ||
c906108c | 2550 | ALL_SYMTABS (objfile, s) |
c5aa993b JM |
2551 | { |
2552 | struct linetable *l; | |
2553 | int ind; | |
c906108c | 2554 | |
3ffc00b8 | 2555 | if (FILENAME_CMP (symtab->filename, s->filename) != 0) |
c5aa993b | 2556 | continue; |
f35a17b5 | 2557 | if (FILENAME_CMP (symtab->fullname, symtab_to_fullname (s)) != 0) |
3ffc00b8 | 2558 | continue; |
c5aa993b | 2559 | l = LINETABLE (s); |
f8eba3c6 | 2560 | ind = find_line_common (l, line, &exact, 0); |
c5aa993b JM |
2561 | if (ind >= 0) |
2562 | { | |
2563 | if (exact) | |
2564 | { | |
2565 | best_index = ind; | |
2566 | best_linetable = l; | |
2567 | best_symtab = s; | |
2568 | goto done; | |
2569 | } | |
2570 | if (best == 0 || l->item[ind].line < best) | |
2571 | { | |
2572 | best = l->item[ind].line; | |
2573 | best_index = ind; | |
2574 | best_linetable = l; | |
2575 | best_symtab = s; | |
2576 | } | |
2577 | } | |
2578 | } | |
c906108c | 2579 | } |
c5aa993b | 2580 | done: |
c906108c SS |
2581 | if (best_index < 0) |
2582 | return NULL; | |
2583 | ||
2584 | if (index) | |
2585 | *index = best_index; | |
2586 | if (exact_match) | |
2587 | *exact_match = exact; | |
2588 | ||
2589 | return best_symtab; | |
2590 | } | |
f8eba3c6 TT |
2591 | |
2592 | /* Given SYMTAB, returns all the PCs function in the symtab that | |
2593 | exactly match LINE. Returns NULL if there are no exact matches, | |
2594 | but updates BEST_ITEM in this case. */ | |
2595 | ||
2596 | VEC (CORE_ADDR) * | |
2597 | find_pcs_for_symtab_line (struct symtab *symtab, int line, | |
2598 | struct linetable_entry **best_item) | |
2599 | { | |
2600 | int start = 0, ix; | |
2601 | struct symbol *previous_function = NULL; | |
2602 | VEC (CORE_ADDR) *result = NULL; | |
2603 | ||
2604 | /* First, collect all the PCs that are at this line. */ | |
2605 | while (1) | |
2606 | { | |
2607 | int was_exact; | |
2608 | int idx; | |
2609 | ||
2610 | idx = find_line_common (LINETABLE (symtab), line, &was_exact, start); | |
2611 | if (idx < 0) | |
2612 | break; | |
2613 | ||
2614 | if (!was_exact) | |
2615 | { | |
2616 | struct linetable_entry *item = &LINETABLE (symtab)->item[idx]; | |
2617 | ||
2618 | if (*best_item == NULL || item->line < (*best_item)->line) | |
2619 | *best_item = item; | |
2620 | ||
2621 | break; | |
2622 | } | |
2623 | ||
2624 | VEC_safe_push (CORE_ADDR, result, LINETABLE (symtab)->item[idx].pc); | |
2625 | start = idx + 1; | |
2626 | } | |
2627 | ||
2628 | return result; | |
2629 | } | |
2630 | ||
c906108c SS |
2631 | \f |
2632 | /* Set the PC value for a given source file and line number and return true. | |
2633 | Returns zero for invalid line number (and sets the PC to 0). | |
2634 | The source file is specified with a struct symtab. */ | |
2635 | ||
2636 | int | |
fba45db2 | 2637 | find_line_pc (struct symtab *symtab, int line, CORE_ADDR *pc) |
c906108c SS |
2638 | { |
2639 | struct linetable *l; | |
2640 | int ind; | |
2641 | ||
2642 | *pc = 0; | |
2643 | if (symtab == 0) | |
2644 | return 0; | |
2645 | ||
2646 | symtab = find_line_symtab (symtab, line, &ind, NULL); | |
2647 | if (symtab != NULL) | |
2648 | { | |
2649 | l = LINETABLE (symtab); | |
2650 | *pc = l->item[ind].pc; | |
2651 | return 1; | |
2652 | } | |
2653 | else | |
2654 | return 0; | |
2655 | } | |
2656 | ||
2657 | /* Find the range of pc values in a line. | |
2658 | Store the starting pc of the line into *STARTPTR | |
2659 | and the ending pc (start of next line) into *ENDPTR. | |
2660 | Returns 1 to indicate success. | |
2661 | Returns 0 if could not find the specified line. */ | |
2662 | ||
2663 | int | |
fba45db2 KB |
2664 | find_line_pc_range (struct symtab_and_line sal, CORE_ADDR *startptr, |
2665 | CORE_ADDR *endptr) | |
c906108c SS |
2666 | { |
2667 | CORE_ADDR startaddr; | |
2668 | struct symtab_and_line found_sal; | |
2669 | ||
2670 | startaddr = sal.pc; | |
c5aa993b | 2671 | if (startaddr == 0 && !find_line_pc (sal.symtab, sal.line, &startaddr)) |
c906108c SS |
2672 | return 0; |
2673 | ||
2674 | /* This whole function is based on address. For example, if line 10 has | |
2675 | two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then | |
2676 | "info line *0x123" should say the line goes from 0x100 to 0x200 | |
2677 | and "info line *0x355" should say the line goes from 0x300 to 0x400. | |
2678 | This also insures that we never give a range like "starts at 0x134 | |
2679 | and ends at 0x12c". */ | |
2680 | ||
2681 | found_sal = find_pc_sect_line (startaddr, sal.section, 0); | |
2682 | if (found_sal.line != sal.line) | |
2683 | { | |
2684 | /* The specified line (sal) has zero bytes. */ | |
2685 | *startptr = found_sal.pc; | |
2686 | *endptr = found_sal.pc; | |
2687 | } | |
2688 | else | |
2689 | { | |
2690 | *startptr = found_sal.pc; | |
2691 | *endptr = found_sal.end; | |
2692 | } | |
2693 | return 1; | |
2694 | } | |
2695 | ||
2696 | /* Given a line table and a line number, return the index into the line | |
2697 | table for the pc of the nearest line whose number is >= the specified one. | |
2698 | Return -1 if none is found. The value is >= 0 if it is an index. | |
f8eba3c6 | 2699 | START is the index at which to start searching the line table. |
c906108c SS |
2700 | |
2701 | Set *EXACT_MATCH nonzero if the value returned is an exact match. */ | |
2702 | ||
2703 | static int | |
aa1ee363 | 2704 | find_line_common (struct linetable *l, int lineno, |
f8eba3c6 | 2705 | int *exact_match, int start) |
c906108c | 2706 | { |
52f0bd74 AC |
2707 | int i; |
2708 | int len; | |
c906108c SS |
2709 | |
2710 | /* BEST is the smallest linenumber > LINENO so far seen, | |
2711 | or 0 if none has been seen so far. | |
2712 | BEST_INDEX identifies the item for it. */ | |
2713 | ||
2714 | int best_index = -1; | |
2715 | int best = 0; | |
2716 | ||
b7589f7d DJ |
2717 | *exact_match = 0; |
2718 | ||
c906108c SS |
2719 | if (lineno <= 0) |
2720 | return -1; | |
2721 | if (l == 0) | |
2722 | return -1; | |
2723 | ||
2724 | len = l->nitems; | |
f8eba3c6 | 2725 | for (i = start; i < len; i++) |
c906108c | 2726 | { |
aa1ee363 | 2727 | struct linetable_entry *item = &(l->item[i]); |
c906108c SS |
2728 | |
2729 | if (item->line == lineno) | |
2730 | { | |
2731 | /* Return the first (lowest address) entry which matches. */ | |
2732 | *exact_match = 1; | |
2733 | return i; | |
2734 | } | |
2735 | ||
2736 | if (item->line > lineno && (best == 0 || item->line < best)) | |
2737 | { | |
2738 | best = item->line; | |
2739 | best_index = i; | |
2740 | } | |
2741 | } | |
2742 | ||
2743 | /* If we got here, we didn't get an exact match. */ | |
c906108c SS |
2744 | return best_index; |
2745 | } | |
2746 | ||
2747 | int | |
fba45db2 | 2748 | find_pc_line_pc_range (CORE_ADDR pc, CORE_ADDR *startptr, CORE_ADDR *endptr) |
c906108c SS |
2749 | { |
2750 | struct symtab_and_line sal; | |
433759f7 | 2751 | |
c906108c SS |
2752 | sal = find_pc_line (pc, 0); |
2753 | *startptr = sal.pc; | |
2754 | *endptr = sal.end; | |
2755 | return sal.symtab != 0; | |
2756 | } | |
2757 | ||
8c7a1ee8 EZ |
2758 | /* Given a function start address FUNC_ADDR and SYMTAB, find the first |
2759 | address for that function that has an entry in SYMTAB's line info | |
2760 | table. If such an entry cannot be found, return FUNC_ADDR | |
2761 | unaltered. */ | |
eca864fe | 2762 | |
70221824 | 2763 | static CORE_ADDR |
8c7a1ee8 EZ |
2764 | skip_prologue_using_lineinfo (CORE_ADDR func_addr, struct symtab *symtab) |
2765 | { | |
2766 | CORE_ADDR func_start, func_end; | |
2767 | struct linetable *l; | |
952a6d41 | 2768 | int i; |
8c7a1ee8 EZ |
2769 | |
2770 | /* Give up if this symbol has no lineinfo table. */ | |
2771 | l = LINETABLE (symtab); | |
2772 | if (l == NULL) | |
2773 | return func_addr; | |
2774 | ||
2775 | /* Get the range for the function's PC values, or give up if we | |
2776 | cannot, for some reason. */ | |
2777 | if (!find_pc_partial_function (func_addr, NULL, &func_start, &func_end)) | |
2778 | return func_addr; | |
2779 | ||
2780 | /* Linetable entries are ordered by PC values, see the commentary in | |
2781 | symtab.h where `struct linetable' is defined. Thus, the first | |
2782 | entry whose PC is in the range [FUNC_START..FUNC_END[ is the | |
2783 | address we are looking for. */ | |
2784 | for (i = 0; i < l->nitems; i++) | |
2785 | { | |
2786 | struct linetable_entry *item = &(l->item[i]); | |
2787 | ||
2788 | /* Don't use line numbers of zero, they mark special entries in | |
2789 | the table. See the commentary on symtab.h before the | |
2790 | definition of struct linetable. */ | |
2791 | if (item->line > 0 && func_start <= item->pc && item->pc < func_end) | |
2792 | return item->pc; | |
2793 | } | |
2794 | ||
2795 | return func_addr; | |
2796 | } | |
2797 | ||
c906108c SS |
2798 | /* Given a function symbol SYM, find the symtab and line for the start |
2799 | of the function. | |
2800 | If the argument FUNFIRSTLINE is nonzero, we want the first line | |
2801 | of real code inside the function. */ | |
2802 | ||
50641945 | 2803 | struct symtab_and_line |
fba45db2 | 2804 | find_function_start_sal (struct symbol *sym, int funfirstline) |
c906108c | 2805 | { |
059acae7 UW |
2806 | struct symtab_and_line sal; |
2807 | ||
2808 | fixup_symbol_section (sym, NULL); | |
2809 | sal = find_pc_sect_line (BLOCK_START (SYMBOL_BLOCK_VALUE (sym)), | |
2810 | SYMBOL_OBJ_SECTION (sym), 0); | |
2811 | ||
86da934b UW |
2812 | /* We always should have a line for the function start address. |
2813 | If we don't, something is odd. Create a plain SAL refering | |
2814 | just the PC and hope that skip_prologue_sal (if requested) | |
2815 | can find a line number for after the prologue. */ | |
2816 | if (sal.pc < BLOCK_START (SYMBOL_BLOCK_VALUE (sym))) | |
2817 | { | |
2818 | init_sal (&sal); | |
2819 | sal.pspace = current_program_space; | |
2820 | sal.pc = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); | |
2821 | sal.section = SYMBOL_OBJ_SECTION (sym); | |
2822 | } | |
2823 | ||
059acae7 UW |
2824 | if (funfirstline) |
2825 | skip_prologue_sal (&sal); | |
bccdca4a | 2826 | |
059acae7 UW |
2827 | return sal; |
2828 | } | |
2829 | ||
2830 | /* Adjust SAL to the first instruction past the function prologue. | |
2831 | If the PC was explicitly specified, the SAL is not changed. | |
2832 | If the line number was explicitly specified, at most the SAL's PC | |
2833 | is updated. If SAL is already past the prologue, then do nothing. */ | |
eca864fe | 2834 | |
059acae7 UW |
2835 | void |
2836 | skip_prologue_sal (struct symtab_and_line *sal) | |
2837 | { | |
2838 | struct symbol *sym; | |
2839 | struct symtab_and_line start_sal; | |
2840 | struct cleanup *old_chain; | |
8be455d7 | 2841 | CORE_ADDR pc, saved_pc; |
059acae7 UW |
2842 | struct obj_section *section; |
2843 | const char *name; | |
2844 | struct objfile *objfile; | |
2845 | struct gdbarch *gdbarch; | |
edb3359d | 2846 | struct block *b, *function_block; |
8be455d7 | 2847 | int force_skip, skip; |
c906108c | 2848 | |
a4b411d6 | 2849 | /* Do not change the SAL if PC was specified explicitly. */ |
059acae7 UW |
2850 | if (sal->explicit_pc) |
2851 | return; | |
6c95b8df PA |
2852 | |
2853 | old_chain = save_current_space_and_thread (); | |
059acae7 | 2854 | switch_to_program_space_and_thread (sal->pspace); |
6c95b8df | 2855 | |
059acae7 UW |
2856 | sym = find_pc_sect_function (sal->pc, sal->section); |
2857 | if (sym != NULL) | |
bccdca4a | 2858 | { |
059acae7 UW |
2859 | fixup_symbol_section (sym, NULL); |
2860 | ||
2861 | pc = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); | |
2862 | section = SYMBOL_OBJ_SECTION (sym); | |
2863 | name = SYMBOL_LINKAGE_NAME (sym); | |
2864 | objfile = SYMBOL_SYMTAB (sym)->objfile; | |
c906108c | 2865 | } |
059acae7 UW |
2866 | else |
2867 | { | |
2868 | struct minimal_symbol *msymbol | |
2869 | = lookup_minimal_symbol_by_pc_section (sal->pc, sal->section); | |
433759f7 | 2870 | |
059acae7 UW |
2871 | if (msymbol == NULL) |
2872 | { | |
2873 | do_cleanups (old_chain); | |
2874 | return; | |
2875 | } | |
2876 | ||
2877 | pc = SYMBOL_VALUE_ADDRESS (msymbol); | |
2878 | section = SYMBOL_OBJ_SECTION (msymbol); | |
2879 | name = SYMBOL_LINKAGE_NAME (msymbol); | |
2880 | objfile = msymbol_objfile (msymbol); | |
2881 | } | |
2882 | ||
2883 | gdbarch = get_objfile_arch (objfile); | |
2884 | ||
8be455d7 JK |
2885 | /* Process the prologue in two passes. In the first pass try to skip the |
2886 | prologue (SKIP is true) and verify there is a real need for it (indicated | |
2887 | by FORCE_SKIP). If no such reason was found run a second pass where the | |
2888 | prologue is not skipped (SKIP is false). */ | |
059acae7 | 2889 | |
8be455d7 JK |
2890 | skip = 1; |
2891 | force_skip = 1; | |
059acae7 | 2892 | |
8be455d7 JK |
2893 | /* Be conservative - allow direct PC (without skipping prologue) only if we |
2894 | have proven the CU (Compilation Unit) supports it. sal->SYMTAB does not | |
2895 | have to be set by the caller so we use SYM instead. */ | |
2896 | if (sym && SYMBOL_SYMTAB (sym)->locations_valid) | |
2897 | force_skip = 0; | |
059acae7 | 2898 | |
8be455d7 JK |
2899 | saved_pc = pc; |
2900 | do | |
c906108c | 2901 | { |
8be455d7 | 2902 | pc = saved_pc; |
4309257c | 2903 | |
8be455d7 JK |
2904 | /* If the function is in an unmapped overlay, use its unmapped LMA address, |
2905 | so that gdbarch_skip_prologue has something unique to work on. */ | |
2906 | if (section_is_overlay (section) && !section_is_mapped (section)) | |
2907 | pc = overlay_unmapped_address (pc, section); | |
2908 | ||
2909 | /* Skip "first line" of function (which is actually its prologue). */ | |
2910 | pc += gdbarch_deprecated_function_start_offset (gdbarch); | |
2911 | if (skip) | |
2912 | pc = gdbarch_skip_prologue (gdbarch, pc); | |
2913 | ||
2914 | /* For overlays, map pc back into its mapped VMA range. */ | |
2915 | pc = overlay_mapped_address (pc, section); | |
2916 | ||
2917 | /* Calculate line number. */ | |
059acae7 | 2918 | start_sal = find_pc_sect_line (pc, section, 0); |
8be455d7 JK |
2919 | |
2920 | /* Check if gdbarch_skip_prologue left us in mid-line, and the next | |
2921 | line is still part of the same function. */ | |
2922 | if (skip && start_sal.pc != pc | |
b1d96efd JK |
2923 | && (sym ? (BLOCK_START (SYMBOL_BLOCK_VALUE (sym)) <= start_sal.end |
2924 | && start_sal.end < BLOCK_END (SYMBOL_BLOCK_VALUE (sym))) | |
8be455d7 JK |
2925 | : (lookup_minimal_symbol_by_pc_section (start_sal.end, section) |
2926 | == lookup_minimal_symbol_by_pc_section (pc, section)))) | |
2927 | { | |
2928 | /* First pc of next line */ | |
2929 | pc = start_sal.end; | |
2930 | /* Recalculate the line number (might not be N+1). */ | |
2931 | start_sal = find_pc_sect_line (pc, section, 0); | |
2932 | } | |
2933 | ||
2934 | /* On targets with executable formats that don't have a concept of | |
2935 | constructors (ELF with .init has, PE doesn't), gcc emits a call | |
2936 | to `__main' in `main' between the prologue and before user | |
2937 | code. */ | |
2938 | if (gdbarch_skip_main_prologue_p (gdbarch) | |
7ccffd7c | 2939 | && name && strcmp_iw (name, "main") == 0) |
8be455d7 JK |
2940 | { |
2941 | pc = gdbarch_skip_main_prologue (gdbarch, pc); | |
2942 | /* Recalculate the line number (might not be N+1). */ | |
2943 | start_sal = find_pc_sect_line (pc, section, 0); | |
2944 | force_skip = 1; | |
2945 | } | |
4309257c | 2946 | } |
8be455d7 | 2947 | while (!force_skip && skip--); |
4309257c | 2948 | |
8c7a1ee8 EZ |
2949 | /* If we still don't have a valid source line, try to find the first |
2950 | PC in the lineinfo table that belongs to the same function. This | |
2951 | happens with COFF debug info, which does not seem to have an | |
2952 | entry in lineinfo table for the code after the prologue which has | |
2953 | no direct relation to source. For example, this was found to be | |
2954 | the case with the DJGPP target using "gcc -gcoff" when the | |
2955 | compiler inserted code after the prologue to make sure the stack | |
2956 | is aligned. */ | |
8be455d7 | 2957 | if (!force_skip && sym && start_sal.symtab == NULL) |
8c7a1ee8 EZ |
2958 | { |
2959 | pc = skip_prologue_using_lineinfo (pc, SYMBOL_SYMTAB (sym)); | |
2960 | /* Recalculate the line number. */ | |
059acae7 | 2961 | start_sal = find_pc_sect_line (pc, section, 0); |
8c7a1ee8 EZ |
2962 | } |
2963 | ||
059acae7 UW |
2964 | do_cleanups (old_chain); |
2965 | ||
2966 | /* If we're already past the prologue, leave SAL unchanged. Otherwise | |
2967 | forward SAL to the end of the prologue. */ | |
2968 | if (sal->pc >= pc) | |
2969 | return; | |
2970 | ||
2971 | sal->pc = pc; | |
2972 | sal->section = section; | |
2973 | ||
2974 | /* Unless the explicit_line flag was set, update the SAL line | |
2975 | and symtab to correspond to the modified PC location. */ | |
2976 | if (sal->explicit_line) | |
2977 | return; | |
2978 | ||
2979 | sal->symtab = start_sal.symtab; | |
2980 | sal->line = start_sal.line; | |
2981 | sal->end = start_sal.end; | |
c906108c | 2982 | |
edb3359d DJ |
2983 | /* Check if we are now inside an inlined function. If we can, |
2984 | use the call site of the function instead. */ | |
059acae7 | 2985 | b = block_for_pc_sect (sal->pc, sal->section); |
edb3359d DJ |
2986 | function_block = NULL; |
2987 | while (b != NULL) | |
2988 | { | |
2989 | if (BLOCK_FUNCTION (b) != NULL && block_inlined_p (b)) | |
2990 | function_block = b; | |
2991 | else if (BLOCK_FUNCTION (b) != NULL) | |
2992 | break; | |
2993 | b = BLOCK_SUPERBLOCK (b); | |
2994 | } | |
2995 | if (function_block != NULL | |
2996 | && SYMBOL_LINE (BLOCK_FUNCTION (function_block)) != 0) | |
2997 | { | |
059acae7 UW |
2998 | sal->line = SYMBOL_LINE (BLOCK_FUNCTION (function_block)); |
2999 | sal->symtab = SYMBOL_SYMTAB (BLOCK_FUNCTION (function_block)); | |
edb3359d | 3000 | } |
c906108c | 3001 | } |
50641945 | 3002 | |
c906108c SS |
3003 | /* If P is of the form "operator[ \t]+..." where `...' is |
3004 | some legitimate operator text, return a pointer to the | |
3005 | beginning of the substring of the operator text. | |
3006 | Otherwise, return "". */ | |
eca864fe | 3007 | |
fc9f3a69 | 3008 | static char * |
fba45db2 | 3009 | operator_chars (char *p, char **end) |
c906108c SS |
3010 | { |
3011 | *end = ""; | |
3012 | if (strncmp (p, "operator", 8)) | |
3013 | return *end; | |
3014 | p += 8; | |
3015 | ||
3016 | /* Don't get faked out by `operator' being part of a longer | |
3017 | identifier. */ | |
c5aa993b | 3018 | if (isalpha (*p) || *p == '_' || *p == '$' || *p == '\0') |
c906108c SS |
3019 | return *end; |
3020 | ||
3021 | /* Allow some whitespace between `operator' and the operator symbol. */ | |
3022 | while (*p == ' ' || *p == '\t') | |
3023 | p++; | |
3024 | ||
c378eb4e | 3025 | /* Recognize 'operator TYPENAME'. */ |
c906108c | 3026 | |
c5aa993b | 3027 | if (isalpha (*p) || *p == '_' || *p == '$') |
c906108c | 3028 | { |
aa1ee363 | 3029 | char *q = p + 1; |
433759f7 | 3030 | |
c5aa993b | 3031 | while (isalnum (*q) || *q == '_' || *q == '$') |
c906108c SS |
3032 | q++; |
3033 | *end = q; | |
3034 | return p; | |
3035 | } | |
3036 | ||
53e8ad3d MS |
3037 | while (*p) |
3038 | switch (*p) | |
3039 | { | |
3040 | case '\\': /* regexp quoting */ | |
3041 | if (p[1] == '*') | |
3042 | { | |
3e43a32a | 3043 | if (p[2] == '=') /* 'operator\*=' */ |
53e8ad3d MS |
3044 | *end = p + 3; |
3045 | else /* 'operator\*' */ | |
3046 | *end = p + 2; | |
3047 | return p; | |
3048 | } | |
3049 | else if (p[1] == '[') | |
3050 | { | |
3051 | if (p[2] == ']') | |
3e43a32a MS |
3052 | error (_("mismatched quoting on brackets, " |
3053 | "try 'operator\\[\\]'")); | |
53e8ad3d MS |
3054 | else if (p[2] == '\\' && p[3] == ']') |
3055 | { | |
3056 | *end = p + 4; /* 'operator\[\]' */ | |
3057 | return p; | |
3058 | } | |
3059 | else | |
8a3fe4f8 | 3060 | error (_("nothing is allowed between '[' and ']'")); |
53e8ad3d | 3061 | } |
9af17804 | 3062 | else |
53e8ad3d | 3063 | { |
c378eb4e | 3064 | /* Gratuitous qoute: skip it and move on. */ |
53e8ad3d MS |
3065 | p++; |
3066 | continue; | |
3067 | } | |
3068 | break; | |
3069 | case '!': | |
3070 | case '=': | |
3071 | case '*': | |
3072 | case '/': | |
3073 | case '%': | |
3074 | case '^': | |
3075 | if (p[1] == '=') | |
3076 | *end = p + 2; | |
3077 | else | |
3078 | *end = p + 1; | |
3079 | return p; | |
3080 | case '<': | |
3081 | case '>': | |
3082 | case '+': | |
3083 | case '-': | |
3084 | case '&': | |
3085 | case '|': | |
3086 | if (p[0] == '-' && p[1] == '>') | |
3087 | { | |
c378eb4e | 3088 | /* Struct pointer member operator 'operator->'. */ |
53e8ad3d MS |
3089 | if (p[2] == '*') |
3090 | { | |
3091 | *end = p + 3; /* 'operator->*' */ | |
3092 | return p; | |
3093 | } | |
3094 | else if (p[2] == '\\') | |
3095 | { | |
3096 | *end = p + 4; /* Hopefully 'operator->\*' */ | |
3097 | return p; | |
3098 | } | |
3099 | else | |
3100 | { | |
3101 | *end = p + 2; /* 'operator->' */ | |
3102 | return p; | |
3103 | } | |
3104 | } | |
3105 | if (p[1] == '=' || p[1] == p[0]) | |
3106 | *end = p + 2; | |
3107 | else | |
3108 | *end = p + 1; | |
3109 | return p; | |
3110 | case '~': | |
3111 | case ',': | |
c5aa993b | 3112 | *end = p + 1; |
53e8ad3d MS |
3113 | return p; |
3114 | case '(': | |
3115 | if (p[1] != ')') | |
3e43a32a MS |
3116 | error (_("`operator ()' must be specified " |
3117 | "without whitespace in `()'")); | |
c5aa993b | 3118 | *end = p + 2; |
53e8ad3d MS |
3119 | return p; |
3120 | case '?': | |
3121 | if (p[1] != ':') | |
3e43a32a MS |
3122 | error (_("`operator ?:' must be specified " |
3123 | "without whitespace in `?:'")); | |
53e8ad3d MS |
3124 | *end = p + 2; |
3125 | return p; | |
3126 | case '[': | |
3127 | if (p[1] != ']') | |
3e43a32a MS |
3128 | error (_("`operator []' must be specified " |
3129 | "without whitespace in `[]'")); | |
53e8ad3d MS |
3130 | *end = p + 2; |
3131 | return p; | |
3132 | default: | |
8a3fe4f8 | 3133 | error (_("`operator %s' not supported"), p); |
53e8ad3d MS |
3134 | break; |
3135 | } | |
3136 | ||
c906108c SS |
3137 | *end = ""; |
3138 | return *end; | |
3139 | } | |
c906108c | 3140 | \f |
c5aa993b | 3141 | |
9fdc877b DE |
3142 | /* Cache to watch for file names already seen by filename_seen. */ |
3143 | ||
3144 | struct filename_seen_cache | |
3145 | { | |
3146 | /* Table of files seen so far. */ | |
2908cac6 DE |
3147 | htab_t tab; |
3148 | /* Initial size of the table. It automagically grows from here. */ | |
9fdc877b | 3149 | #define INITIAL_FILENAME_SEEN_CACHE_SIZE 100 |
9fdc877b DE |
3150 | }; |
3151 | ||
3152 | /* filename_seen_cache constructor. */ | |
3153 | ||
3154 | static struct filename_seen_cache * | |
3155 | create_filename_seen_cache (void) | |
3156 | { | |
3157 | struct filename_seen_cache *cache; | |
3158 | ||
3159 | cache = XNEW (struct filename_seen_cache); | |
2908cac6 DE |
3160 | cache->tab = htab_create_alloc (INITIAL_FILENAME_SEEN_CACHE_SIZE, |
3161 | filename_hash, filename_eq, | |
3162 | NULL, xcalloc, xfree); | |
9fdc877b DE |
3163 | |
3164 | return cache; | |
3165 | } | |
3166 | ||
3167 | /* Empty the cache, but do not delete it. */ | |
3168 | ||
3169 | static void | |
2908cac6 | 3170 | clear_filename_seen_cache (struct filename_seen_cache *cache) |
9fdc877b | 3171 | { |
2908cac6 | 3172 | htab_empty (cache->tab); |
9fdc877b DE |
3173 | } |
3174 | ||
3175 | /* filename_seen_cache destructor. | |
3176 | This takes a void * argument as it is generally used as a cleanup. */ | |
3177 | ||
3178 | static void | |
3179 | delete_filename_seen_cache (void *ptr) | |
3180 | { | |
3181 | struct filename_seen_cache *cache = ptr; | |
3182 | ||
2908cac6 | 3183 | htab_delete (cache->tab); |
9fdc877b DE |
3184 | xfree (cache); |
3185 | } | |
3186 | ||
a2b6eff5 | 3187 | /* If FILE is not already in the table of files in CACHE, return zero; |
c94fdfd0 | 3188 | otherwise return non-zero. Optionally add FILE to the table if ADD |
2908cac6 DE |
3189 | is non-zero. |
3190 | ||
3191 | NOTE: We don't manage space for FILE, we assume FILE lives as long | |
3192 | as the caller needs. */ | |
eca864fe | 3193 | |
c94fdfd0 | 3194 | static int |
9fdc877b | 3195 | filename_seen (struct filename_seen_cache *cache, const char *file, int add) |
c906108c | 3196 | { |
2908cac6 | 3197 | void **slot; |
c906108c | 3198 | |
c94fdfd0 | 3199 | /* Is FILE in tab? */ |
2908cac6 DE |
3200 | slot = htab_find_slot (cache->tab, file, add ? INSERT : NO_INSERT); |
3201 | if (*slot != NULL) | |
3202 | return 1; | |
c94fdfd0 EZ |
3203 | |
3204 | /* No; maybe add it to tab. */ | |
3205 | if (add) | |
2908cac6 | 3206 | *slot = (char *) file; |
c906108c | 3207 | |
c94fdfd0 EZ |
3208 | return 0; |
3209 | } | |
3210 | ||
9fdc877b DE |
3211 | /* Data structure to maintain printing state for output_source_filename. */ |
3212 | ||
3213 | struct output_source_filename_data | |
3214 | { | |
3215 | /* Cache of what we've seen so far. */ | |
3216 | struct filename_seen_cache *filename_seen_cache; | |
3217 | ||
3218 | /* Flag of whether we're printing the first one. */ | |
3219 | int first; | |
3220 | }; | |
3221 | ||
c94fdfd0 | 3222 | /* Slave routine for sources_info. Force line breaks at ,'s. |
9fdc877b DE |
3223 | NAME is the name to print. |
3224 | DATA contains the state for printing and watching for duplicates. */ | |
eca864fe | 3225 | |
c94fdfd0 | 3226 | static void |
9fdc877b DE |
3227 | output_source_filename (const char *name, |
3228 | struct output_source_filename_data *data) | |
c94fdfd0 EZ |
3229 | { |
3230 | /* Since a single source file can result in several partial symbol | |
3231 | tables, we need to avoid printing it more than once. Note: if | |
3232 | some of the psymtabs are read in and some are not, it gets | |
3233 | printed both under "Source files for which symbols have been | |
3234 | read" and "Source files for which symbols will be read in on | |
3235 | demand". I consider this a reasonable way to deal with the | |
3236 | situation. I'm not sure whether this can also happen for | |
3237 | symtabs; it doesn't hurt to check. */ | |
3238 | ||
3239 | /* Was NAME already seen? */ | |
9fdc877b | 3240 | if (filename_seen (data->filename_seen_cache, name, 1)) |
c94fdfd0 EZ |
3241 | { |
3242 | /* Yes; don't print it again. */ | |
3243 | return; | |
3244 | } | |
9fdc877b | 3245 | |
c94fdfd0 | 3246 | /* No; print it and reset *FIRST. */ |
9fdc877b DE |
3247 | if (! data->first) |
3248 | printf_filtered (", "); | |
3249 | data->first = 0; | |
c906108c SS |
3250 | |
3251 | wrap_here (""); | |
3252 | fputs_filtered (name, gdb_stdout); | |
c5aa993b | 3253 | } |
c906108c | 3254 | |
ccefe4c4 | 3255 | /* A callback for map_partial_symbol_filenames. */ |
eca864fe | 3256 | |
ccefe4c4 | 3257 | static void |
533a737e | 3258 | output_partial_symbol_filename (const char *filename, const char *fullname, |
ccefe4c4 TT |
3259 | void *data) |
3260 | { | |
3261 | output_source_filename (fullname ? fullname : filename, data); | |
3262 | } | |
3263 | ||
c906108c | 3264 | static void |
fba45db2 | 3265 | sources_info (char *ignore, int from_tty) |
c906108c | 3266 | { |
52f0bd74 | 3267 | struct symtab *s; |
52f0bd74 | 3268 | struct objfile *objfile; |
9fdc877b DE |
3269 | struct output_source_filename_data data; |
3270 | struct cleanup *cleanups; | |
c5aa993b | 3271 | |
c906108c SS |
3272 | if (!have_full_symbols () && !have_partial_symbols ()) |
3273 | { | |
8a3fe4f8 | 3274 | error (_("No symbol table is loaded. Use the \"file\" command.")); |
c906108c | 3275 | } |
c5aa993b | 3276 | |
9fdc877b DE |
3277 | data.filename_seen_cache = create_filename_seen_cache (); |
3278 | cleanups = make_cleanup (delete_filename_seen_cache, | |
3279 | data.filename_seen_cache); | |
3280 | ||
c906108c SS |
3281 | printf_filtered ("Source files for which symbols have been read in:\n\n"); |
3282 | ||
9fdc877b | 3283 | data.first = 1; |
c906108c | 3284 | ALL_SYMTABS (objfile, s) |
c5aa993b | 3285 | { |
d092d1a2 | 3286 | const char *fullname = symtab_to_fullname (s); |
433759f7 | 3287 | |
f35a17b5 | 3288 | output_source_filename (fullname, &data); |
c5aa993b | 3289 | } |
c906108c | 3290 | printf_filtered ("\n\n"); |
c5aa993b | 3291 | |
3e43a32a MS |
3292 | printf_filtered ("Source files for which symbols " |
3293 | "will be read in on demand:\n\n"); | |
c906108c | 3294 | |
9fdc877b DE |
3295 | clear_filename_seen_cache (data.filename_seen_cache); |
3296 | data.first = 1; | |
3297 | map_partial_symbol_filenames (output_partial_symbol_filename, &data, | |
74e2f255 | 3298 | 1 /*need_fullname*/); |
c906108c | 3299 | printf_filtered ("\n"); |
9fdc877b DE |
3300 | |
3301 | do_cleanups (cleanups); | |
c906108c SS |
3302 | } |
3303 | ||
3304 | static int | |
ccefe4c4 | 3305 | file_matches (const char *file, char *files[], int nfiles) |
c906108c SS |
3306 | { |
3307 | int i; | |
3308 | ||
3309 | if (file != NULL && nfiles != 0) | |
3310 | { | |
3311 | for (i = 0; i < nfiles; i++) | |
c5aa993b | 3312 | { |
0ba1096a | 3313 | if (filename_cmp (files[i], lbasename (file)) == 0) |
c5aa993b JM |
3314 | return 1; |
3315 | } | |
c906108c SS |
3316 | } |
3317 | else if (nfiles == 0) | |
3318 | return 1; | |
3319 | return 0; | |
3320 | } | |
3321 | ||
c378eb4e | 3322 | /* Free any memory associated with a search. */ |
eca864fe | 3323 | |
c906108c | 3324 | void |
fba45db2 | 3325 | free_search_symbols (struct symbol_search *symbols) |
c906108c SS |
3326 | { |
3327 | struct symbol_search *p; | |
3328 | struct symbol_search *next; | |
3329 | ||
3330 | for (p = symbols; p != NULL; p = next) | |
3331 | { | |
3332 | next = p->next; | |
b8c9b27d | 3333 | xfree (p); |
c906108c SS |
3334 | } |
3335 | } | |
3336 | ||
5bd98722 AC |
3337 | static void |
3338 | do_free_search_symbols_cleanup (void *symbols) | |
3339 | { | |
3340 | free_search_symbols (symbols); | |
3341 | } | |
3342 | ||
3343 | struct cleanup * | |
3344 | make_cleanup_free_search_symbols (struct symbol_search *symbols) | |
3345 | { | |
3346 | return make_cleanup (do_free_search_symbols_cleanup, symbols); | |
3347 | } | |
3348 | ||
434d2d4f DJ |
3349 | /* Helper function for sort_search_symbols and qsort. Can only |
3350 | sort symbols, not minimal symbols. */ | |
eca864fe | 3351 | |
434d2d4f DJ |
3352 | static int |
3353 | compare_search_syms (const void *sa, const void *sb) | |
3354 | { | |
3355 | struct symbol_search **sym_a = (struct symbol_search **) sa; | |
3356 | struct symbol_search **sym_b = (struct symbol_search **) sb; | |
3357 | ||
de5ad195 DC |
3358 | return strcmp (SYMBOL_PRINT_NAME ((*sym_a)->symbol), |
3359 | SYMBOL_PRINT_NAME ((*sym_b)->symbol)); | |
434d2d4f DJ |
3360 | } |
3361 | ||
3362 | /* Sort the ``nfound'' symbols in the list after prevtail. Leave | |
3363 | prevtail where it is, but update its next pointer to point to | |
3364 | the first of the sorted symbols. */ | |
eca864fe | 3365 | |
434d2d4f DJ |
3366 | static struct symbol_search * |
3367 | sort_search_symbols (struct symbol_search *prevtail, int nfound) | |
3368 | { | |
3369 | struct symbol_search **symbols, *symp, *old_next; | |
3370 | int i; | |
3371 | ||
3372 | symbols = (struct symbol_search **) xmalloc (sizeof (struct symbol_search *) | |
3373 | * nfound); | |
3374 | symp = prevtail->next; | |
3375 | for (i = 0; i < nfound; i++) | |
3376 | { | |
3377 | symbols[i] = symp; | |
3378 | symp = symp->next; | |
3379 | } | |
3380 | /* Generally NULL. */ | |
3381 | old_next = symp; | |
3382 | ||
3383 | qsort (symbols, nfound, sizeof (struct symbol_search *), | |
3384 | compare_search_syms); | |
3385 | ||
3386 | symp = prevtail; | |
3387 | for (i = 0; i < nfound; i++) | |
3388 | { | |
3389 | symp->next = symbols[i]; | |
3390 | symp = symp->next; | |
3391 | } | |
3392 | symp->next = old_next; | |
3393 | ||
8ed32cc0 | 3394 | xfree (symbols); |
434d2d4f DJ |
3395 | return symp; |
3396 | } | |
5bd98722 | 3397 | |
ccefe4c4 TT |
3398 | /* An object of this type is passed as the user_data to the |
3399 | expand_symtabs_matching method. */ | |
3400 | struct search_symbols_data | |
3401 | { | |
3402 | int nfiles; | |
3403 | char **files; | |
681bf369 JK |
3404 | |
3405 | /* It is true if PREG contains valid data, false otherwise. */ | |
3406 | unsigned preg_p : 1; | |
3407 | regex_t preg; | |
ccefe4c4 TT |
3408 | }; |
3409 | ||
3410 | /* A callback for expand_symtabs_matching. */ | |
eca864fe | 3411 | |
ccefe4c4 TT |
3412 | static int |
3413 | search_symbols_file_matches (const char *filename, void *user_data) | |
3414 | { | |
3415 | struct search_symbols_data *data = user_data; | |
433759f7 | 3416 | |
ccefe4c4 TT |
3417 | return file_matches (filename, data->files, data->nfiles); |
3418 | } | |
3419 | ||
3420 | /* A callback for expand_symtabs_matching. */ | |
eca864fe | 3421 | |
ccefe4c4 | 3422 | static int |
e078317b | 3423 | search_symbols_name_matches (const char *symname, void *user_data) |
ccefe4c4 TT |
3424 | { |
3425 | struct search_symbols_data *data = user_data; | |
433759f7 | 3426 | |
681bf369 | 3427 | return !data->preg_p || regexec (&data->preg, symname, 0, NULL, 0) == 0; |
ccefe4c4 TT |
3428 | } |
3429 | ||
c906108c SS |
3430 | /* Search the symbol table for matches to the regular expression REGEXP, |
3431 | returning the results in *MATCHES. | |
3432 | ||
3433 | Only symbols of KIND are searched: | |
e8930875 JK |
3434 | VARIABLES_DOMAIN - search all symbols, excluding functions, type names, |
3435 | and constants (enums) | |
176620f1 EZ |
3436 | FUNCTIONS_DOMAIN - search all functions |
3437 | TYPES_DOMAIN - search all type names | |
7b08b9eb | 3438 | ALL_DOMAIN - an internal error for this function |
c906108c SS |
3439 | |
3440 | free_search_symbols should be called when *MATCHES is no longer needed. | |
434d2d4f DJ |
3441 | |
3442 | The results are sorted locally; each symtab's global and static blocks are | |
c378eb4e MS |
3443 | separately alphabetized. */ |
3444 | ||
c906108c | 3445 | void |
8903c50d TT |
3446 | search_symbols (char *regexp, enum search_domain kind, |
3447 | int nfiles, char *files[], | |
fd118b61 | 3448 | struct symbol_search **matches) |
c906108c | 3449 | { |
52f0bd74 | 3450 | struct symtab *s; |
52f0bd74 | 3451 | struct blockvector *bv; |
52f0bd74 AC |
3452 | struct block *b; |
3453 | int i = 0; | |
8157b174 | 3454 | struct block_iterator iter; |
52f0bd74 | 3455 | struct symbol *sym; |
c906108c SS |
3456 | struct objfile *objfile; |
3457 | struct minimal_symbol *msymbol; | |
c906108c | 3458 | int found_misc = 0; |
bc043ef3 | 3459 | static const enum minimal_symbol_type types[] |
e8930875 | 3460 | = {mst_data, mst_text, mst_abs}; |
bc043ef3 | 3461 | static const enum minimal_symbol_type types2[] |
e8930875 | 3462 | = {mst_bss, mst_file_text, mst_abs}; |
bc043ef3 | 3463 | static const enum minimal_symbol_type types3[] |
e8930875 | 3464 | = {mst_file_data, mst_solib_trampoline, mst_abs}; |
bc043ef3 | 3465 | static const enum minimal_symbol_type types4[] |
e8930875 | 3466 | = {mst_file_bss, mst_text_gnu_ifunc, mst_abs}; |
c906108c SS |
3467 | enum minimal_symbol_type ourtype; |
3468 | enum minimal_symbol_type ourtype2; | |
3469 | enum minimal_symbol_type ourtype3; | |
3470 | enum minimal_symbol_type ourtype4; | |
3471 | struct symbol_search *sr; | |
3472 | struct symbol_search *psr; | |
3473 | struct symbol_search *tail; | |
ccefe4c4 | 3474 | struct search_symbols_data datum; |
c906108c | 3475 | |
681bf369 JK |
3476 | /* OLD_CHAIN .. RETVAL_CHAIN is always freed, RETVAL_CHAIN .. current |
3477 | CLEANUP_CHAIN is freed only in the case of an error. */ | |
3478 | struct cleanup *old_chain = make_cleanup (null_cleanup, NULL); | |
3479 | struct cleanup *retval_chain; | |
3480 | ||
e8930875 JK |
3481 | gdb_assert (kind <= TYPES_DOMAIN); |
3482 | ||
8903c50d TT |
3483 | ourtype = types[kind]; |
3484 | ourtype2 = types2[kind]; | |
3485 | ourtype3 = types3[kind]; | |
3486 | ourtype4 = types4[kind]; | |
c906108c SS |
3487 | |
3488 | sr = *matches = NULL; | |
3489 | tail = NULL; | |
681bf369 | 3490 | datum.preg_p = 0; |
c906108c SS |
3491 | |
3492 | if (regexp != NULL) | |
3493 | { | |
3494 | /* Make sure spacing is right for C++ operators. | |
3495 | This is just a courtesy to make the matching less sensitive | |
3496 | to how many spaces the user leaves between 'operator' | |
c378eb4e | 3497 | and <TYPENAME> or <OPERATOR>. */ |
c906108c SS |
3498 | char *opend; |
3499 | char *opname = operator_chars (regexp, &opend); | |
681bf369 | 3500 | int errcode; |
433759f7 | 3501 | |
c906108c | 3502 | if (*opname) |
c5aa993b | 3503 | { |
3e43a32a MS |
3504 | int fix = -1; /* -1 means ok; otherwise number of |
3505 | spaces needed. */ | |
433759f7 | 3506 | |
c5aa993b JM |
3507 | if (isalpha (*opname) || *opname == '_' || *opname == '$') |
3508 | { | |
c378eb4e | 3509 | /* There should 1 space between 'operator' and 'TYPENAME'. */ |
c5aa993b JM |
3510 | if (opname[-1] != ' ' || opname[-2] == ' ') |
3511 | fix = 1; | |
3512 | } | |
3513 | else | |
3514 | { | |
c378eb4e | 3515 | /* There should 0 spaces between 'operator' and 'OPERATOR'. */ |
c5aa993b JM |
3516 | if (opname[-1] == ' ') |
3517 | fix = 0; | |
3518 | } | |
c378eb4e | 3519 | /* If wrong number of spaces, fix it. */ |
c5aa993b JM |
3520 | if (fix >= 0) |
3521 | { | |
045f55a6 | 3522 | char *tmp = (char *) alloca (8 + fix + strlen (opname) + 1); |
433759f7 | 3523 | |
c5aa993b JM |
3524 | sprintf (tmp, "operator%.*s%s", fix, " ", opname); |
3525 | regexp = tmp; | |
3526 | } | |
3527 | } | |
3528 | ||
559a7a62 JK |
3529 | errcode = regcomp (&datum.preg, regexp, |
3530 | REG_NOSUB | (case_sensitivity == case_sensitive_off | |
3531 | ? REG_ICASE : 0)); | |
681bf369 JK |
3532 | if (errcode != 0) |
3533 | { | |
3534 | char *err = get_regcomp_error (errcode, &datum.preg); | |
3535 | ||
3536 | make_cleanup (xfree, err); | |
3537 | error (_("Invalid regexp (%s): %s"), err, regexp); | |
3538 | } | |
3539 | datum.preg_p = 1; | |
3540 | make_regfree_cleanup (&datum.preg); | |
c906108c SS |
3541 | } |
3542 | ||
3543 | /* Search through the partial symtabs *first* for all symbols | |
3544 | matching the regexp. That way we don't have to reproduce all of | |
c378eb4e | 3545 | the machinery below. */ |
c906108c | 3546 | |
ccefe4c4 TT |
3547 | datum.nfiles = nfiles; |
3548 | datum.files = files; | |
ccefe4c4 | 3549 | ALL_OBJFILES (objfile) |
c5aa993b | 3550 | { |
ccefe4c4 TT |
3551 | if (objfile->sf) |
3552 | objfile->sf->qf->expand_symtabs_matching (objfile, | |
71cddcc1 DE |
3553 | (nfiles == 0 |
3554 | ? NULL | |
3555 | : search_symbols_file_matches), | |
ccefe4c4 TT |
3556 | search_symbols_name_matches, |
3557 | kind, | |
3558 | &datum); | |
c5aa993b | 3559 | } |
c906108c | 3560 | |
681bf369 JK |
3561 | retval_chain = old_chain; |
3562 | ||
c906108c SS |
3563 | /* Here, we search through the minimal symbol tables for functions |
3564 | and variables that match, and force their symbols to be read. | |
3565 | This is in particular necessary for demangled variable names, | |
3566 | which are no longer put into the partial symbol tables. | |
3567 | The symbol will then be found during the scan of symtabs below. | |
3568 | ||
3569 | For functions, find_pc_symtab should succeed if we have debug info | |
422d65e7 DE |
3570 | for the function, for variables we have to call |
3571 | lookup_symbol_in_objfile_from_linkage_name to determine if the variable | |
3572 | has debug info. | |
c906108c | 3573 | If the lookup fails, set found_misc so that we will rescan to print |
422d65e7 DE |
3574 | any matching symbols without debug info. |
3575 | We only search the objfile the msymbol came from, we no longer search | |
3576 | all objfiles. In large programs (1000s of shared libs) searching all | |
3577 | objfiles is not worth the pain. */ | |
c906108c | 3578 | |
176620f1 | 3579 | if (nfiles == 0 && (kind == VARIABLES_DOMAIN || kind == FUNCTIONS_DOMAIN)) |
c906108c SS |
3580 | { |
3581 | ALL_MSYMBOLS (objfile, msymbol) | |
c5aa993b | 3582 | { |
89295b4d PP |
3583 | QUIT; |
3584 | ||
422d65e7 DE |
3585 | if (msymbol->created_by_gdb) |
3586 | continue; | |
3587 | ||
d50bd42b DE |
3588 | if (MSYMBOL_TYPE (msymbol) == ourtype |
3589 | || MSYMBOL_TYPE (msymbol) == ourtype2 | |
3590 | || MSYMBOL_TYPE (msymbol) == ourtype3 | |
3591 | || MSYMBOL_TYPE (msymbol) == ourtype4) | |
c5aa993b | 3592 | { |
681bf369 JK |
3593 | if (!datum.preg_p |
3594 | || regexec (&datum.preg, SYMBOL_NATURAL_NAME (msymbol), 0, | |
3595 | NULL, 0) == 0) | |
c5aa993b | 3596 | { |
422d65e7 DE |
3597 | /* Note: An important side-effect of these lookup functions |
3598 | is to expand the symbol table if msymbol is found, for the | |
3599 | benefit of the next loop on ALL_PRIMARY_SYMTABS. */ | |
3600 | if (kind == FUNCTIONS_DOMAIN | |
3601 | ? find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol)) == NULL | |
3602 | : (lookup_symbol_in_objfile_from_linkage_name | |
3603 | (objfile, SYMBOL_LINKAGE_NAME (msymbol), VAR_DOMAIN) | |
3604 | == NULL)) | |
3605 | found_misc = 1; | |
c5aa993b JM |
3606 | } |
3607 | } | |
3608 | } | |
c906108c SS |
3609 | } |
3610 | ||
11309657 | 3611 | ALL_PRIMARY_SYMTABS (objfile, s) |
c5aa993b JM |
3612 | { |
3613 | bv = BLOCKVECTOR (s); | |
d50bd42b DE |
3614 | for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++) |
3615 | { | |
3616 | struct symbol_search *prevtail = tail; | |
3617 | int nfound = 0; | |
433759f7 | 3618 | |
d50bd42b DE |
3619 | b = BLOCKVECTOR_BLOCK (bv, i); |
3620 | ALL_BLOCK_SYMBOLS (b, iter, sym) | |
3621 | { | |
3622 | struct symtab *real_symtab = SYMBOL_SYMTAB (sym); | |
3623 | ||
3624 | QUIT; | |
3625 | ||
3626 | if (file_matches (real_symtab->filename, files, nfiles) | |
3627 | && ((!datum.preg_p | |
3628 | || regexec (&datum.preg, SYMBOL_NATURAL_NAME (sym), 0, | |
3629 | NULL, 0) == 0) | |
3630 | && ((kind == VARIABLES_DOMAIN | |
3631 | && SYMBOL_CLASS (sym) != LOC_TYPEDEF | |
3632 | && SYMBOL_CLASS (sym) != LOC_UNRESOLVED | |
3633 | && SYMBOL_CLASS (sym) != LOC_BLOCK | |
3634 | /* LOC_CONST can be used for more than just enums, | |
3635 | e.g., c++ static const members. | |
3636 | We only want to skip enums here. */ | |
3637 | && !(SYMBOL_CLASS (sym) == LOC_CONST | |
3638 | && TYPE_CODE (SYMBOL_TYPE (sym)) | |
3639 | == TYPE_CODE_ENUM)) | |
3640 | || (kind == FUNCTIONS_DOMAIN | |
3641 | && SYMBOL_CLASS (sym) == LOC_BLOCK) | |
3642 | || (kind == TYPES_DOMAIN | |
3643 | && SYMBOL_CLASS (sym) == LOC_TYPEDEF)))) | |
3644 | { | |
3645 | /* match */ | |
3646 | psr = (struct symbol_search *) | |
3647 | xmalloc (sizeof (struct symbol_search)); | |
3648 | psr->block = i; | |
3649 | psr->symtab = real_symtab; | |
3650 | psr->symbol = sym; | |
3651 | psr->msymbol = NULL; | |
3652 | psr->next = NULL; | |
3653 | if (tail == NULL) | |
3654 | sr = psr; | |
3655 | else | |
3656 | tail->next = psr; | |
3657 | tail = psr; | |
3658 | nfound ++; | |
3659 | } | |
3660 | } | |
3661 | if (nfound > 0) | |
3662 | { | |
3663 | if (prevtail == NULL) | |
3664 | { | |
3665 | struct symbol_search dummy; | |
434d2d4f | 3666 | |
d50bd42b DE |
3667 | dummy.next = sr; |
3668 | tail = sort_search_symbols (&dummy, nfound); | |
3669 | sr = dummy.next; | |
434d2d4f | 3670 | |
d50bd42b DE |
3671 | make_cleanup_free_search_symbols (sr); |
3672 | } | |
3673 | else | |
3674 | tail = sort_search_symbols (prevtail, nfound); | |
3675 | } | |
3676 | } | |
c5aa993b | 3677 | } |
c906108c SS |
3678 | |
3679 | /* If there are no eyes, avoid all contact. I mean, if there are | |
3680 | no debug symbols, then print directly from the msymbol_vector. */ | |
3681 | ||
422d65e7 | 3682 | if (found_misc || (nfiles == 0 && kind != FUNCTIONS_DOMAIN)) |
c906108c SS |
3683 | { |
3684 | ALL_MSYMBOLS (objfile, msymbol) | |
c5aa993b | 3685 | { |
89295b4d PP |
3686 | QUIT; |
3687 | ||
422d65e7 DE |
3688 | if (msymbol->created_by_gdb) |
3689 | continue; | |
3690 | ||
d50bd42b DE |
3691 | if (MSYMBOL_TYPE (msymbol) == ourtype |
3692 | || MSYMBOL_TYPE (msymbol) == ourtype2 | |
3693 | || MSYMBOL_TYPE (msymbol) == ourtype3 | |
3694 | || MSYMBOL_TYPE (msymbol) == ourtype4) | |
c5aa993b | 3695 | { |
681bf369 JK |
3696 | if (!datum.preg_p |
3697 | || regexec (&datum.preg, SYMBOL_NATURAL_NAME (msymbol), 0, | |
3698 | NULL, 0) == 0) | |
c5aa993b | 3699 | { |
422d65e7 DE |
3700 | /* For functions we can do a quick check of whether the |
3701 | symbol might be found via find_pc_symtab. */ | |
3702 | if (kind != FUNCTIONS_DOMAIN | |
3703 | || find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol)) == NULL) | |
c5aa993b | 3704 | { |
422d65e7 DE |
3705 | if (lookup_symbol_in_objfile_from_linkage_name |
3706 | (objfile, SYMBOL_LINKAGE_NAME (msymbol), VAR_DOMAIN) | |
3707 | == NULL) | |
c5aa993b JM |
3708 | { |
3709 | /* match */ | |
3e43a32a MS |
3710 | psr = (struct symbol_search *) |
3711 | xmalloc (sizeof (struct symbol_search)); | |
c5aa993b JM |
3712 | psr->block = i; |
3713 | psr->msymbol = msymbol; | |
3714 | psr->symtab = NULL; | |
3715 | psr->symbol = NULL; | |
3716 | psr->next = NULL; | |
3717 | if (tail == NULL) | |
3718 | { | |
3719 | sr = psr; | |
681bf369 | 3720 | make_cleanup_free_search_symbols (sr); |
c5aa993b JM |
3721 | } |
3722 | else | |
3723 | tail->next = psr; | |
3724 | tail = psr; | |
3725 | } | |
3726 | } | |
3727 | } | |
3728 | } | |
3729 | } | |
c906108c SS |
3730 | } |
3731 | ||
681bf369 JK |
3732 | discard_cleanups (retval_chain); |
3733 | do_cleanups (old_chain); | |
c906108c | 3734 | *matches = sr; |
c906108c SS |
3735 | } |
3736 | ||
3737 | /* Helper function for symtab_symbol_info, this function uses | |
3738 | the data returned from search_symbols() to print information | |
c378eb4e MS |
3739 | regarding the match to gdb_stdout. */ |
3740 | ||
c906108c | 3741 | static void |
8903c50d TT |
3742 | print_symbol_info (enum search_domain kind, |
3743 | struct symtab *s, struct symbol *sym, | |
fba45db2 | 3744 | int block, char *last) |
c906108c | 3745 | { |
0ba1096a | 3746 | if (last == NULL || filename_cmp (last, s->filename) != 0) |
c906108c SS |
3747 | { |
3748 | fputs_filtered ("\nFile ", gdb_stdout); | |
3749 | fputs_filtered (s->filename, gdb_stdout); | |
3750 | fputs_filtered (":\n", gdb_stdout); | |
3751 | } | |
3752 | ||
176620f1 | 3753 | if (kind != TYPES_DOMAIN && block == STATIC_BLOCK) |
c906108c | 3754 | printf_filtered ("static "); |
c5aa993b | 3755 | |
c378eb4e | 3756 | /* Typedef that is not a C++ class. */ |
176620f1 EZ |
3757 | if (kind == TYPES_DOMAIN |
3758 | && SYMBOL_DOMAIN (sym) != STRUCT_DOMAIN) | |
a5238fbc | 3759 | typedef_print (SYMBOL_TYPE (sym), sym, gdb_stdout); |
c378eb4e | 3760 | /* variable, func, or typedef-that-is-c++-class. */ |
d50bd42b DE |
3761 | else if (kind < TYPES_DOMAIN |
3762 | || (kind == TYPES_DOMAIN | |
3763 | && SYMBOL_DOMAIN (sym) == STRUCT_DOMAIN)) | |
c906108c SS |
3764 | { |
3765 | type_print (SYMBOL_TYPE (sym), | |
c5aa993b | 3766 | (SYMBOL_CLASS (sym) == LOC_TYPEDEF |
de5ad195 | 3767 | ? "" : SYMBOL_PRINT_NAME (sym)), |
c5aa993b | 3768 | gdb_stdout, 0); |
c906108c SS |
3769 | |
3770 | printf_filtered (";\n"); | |
3771 | } | |
c906108c SS |
3772 | } |
3773 | ||
3774 | /* This help function for symtab_symbol_info() prints information | |
c378eb4e MS |
3775 | for non-debugging symbols to gdb_stdout. */ |
3776 | ||
c906108c | 3777 | static void |
fba45db2 | 3778 | print_msymbol_info (struct minimal_symbol *msymbol) |
c906108c | 3779 | { |
d80b854b | 3780 | struct gdbarch *gdbarch = get_objfile_arch (msymbol_objfile (msymbol)); |
3ac4495a MS |
3781 | char *tmp; |
3782 | ||
d80b854b | 3783 | if (gdbarch_addr_bit (gdbarch) <= 32) |
bb599908 PH |
3784 | tmp = hex_string_custom (SYMBOL_VALUE_ADDRESS (msymbol) |
3785 | & (CORE_ADDR) 0xffffffff, | |
3786 | 8); | |
3ac4495a | 3787 | else |
bb599908 PH |
3788 | tmp = hex_string_custom (SYMBOL_VALUE_ADDRESS (msymbol), |
3789 | 16); | |
3ac4495a | 3790 | printf_filtered ("%s %s\n", |
de5ad195 | 3791 | tmp, SYMBOL_PRINT_NAME (msymbol)); |
c906108c SS |
3792 | } |
3793 | ||
3794 | /* This is the guts of the commands "info functions", "info types", and | |
c378eb4e | 3795 | "info variables". It calls search_symbols to find all matches and then |
c906108c | 3796 | print_[m]symbol_info to print out some useful information about the |
c378eb4e MS |
3797 | matches. */ |
3798 | ||
c906108c | 3799 | static void |
8903c50d | 3800 | symtab_symbol_info (char *regexp, enum search_domain kind, int from_tty) |
c906108c | 3801 | { |
bc043ef3 | 3802 | static const char * const classnames[] = |
e8930875 | 3803 | {"variable", "function", "type"}; |
c906108c SS |
3804 | struct symbol_search *symbols; |
3805 | struct symbol_search *p; | |
3806 | struct cleanup *old_chain; | |
3807 | char *last_filename = NULL; | |
3808 | int first = 1; | |
3809 | ||
e8930875 JK |
3810 | gdb_assert (kind <= TYPES_DOMAIN); |
3811 | ||
c378eb4e | 3812 | /* Must make sure that if we're interrupted, symbols gets freed. */ |
c906108c | 3813 | search_symbols (regexp, kind, 0, (char **) NULL, &symbols); |
5bd98722 | 3814 | old_chain = make_cleanup_free_search_symbols (symbols); |
c906108c | 3815 | |
ca242aad YQ |
3816 | if (regexp != NULL) |
3817 | printf_filtered (_("All %ss matching regular expression \"%s\":\n"), | |
3818 | classnames[kind], regexp); | |
3819 | else | |
3820 | printf_filtered (_("All defined %ss:\n"), classnames[kind]); | |
c906108c SS |
3821 | |
3822 | for (p = symbols; p != NULL; p = p->next) | |
3823 | { | |
3824 | QUIT; | |
3825 | ||
3826 | if (p->msymbol != NULL) | |
c5aa993b JM |
3827 | { |
3828 | if (first) | |
3829 | { | |
ca242aad | 3830 | printf_filtered (_("\nNon-debugging symbols:\n")); |
c5aa993b JM |
3831 | first = 0; |
3832 | } | |
3833 | print_msymbol_info (p->msymbol); | |
3834 | } | |
c906108c | 3835 | else |
c5aa993b JM |
3836 | { |
3837 | print_symbol_info (kind, | |
3838 | p->symtab, | |
3839 | p->symbol, | |
3840 | p->block, | |
3841 | last_filename); | |
3842 | last_filename = p->symtab->filename; | |
3843 | } | |
c906108c SS |
3844 | } |
3845 | ||
3846 | do_cleanups (old_chain); | |
3847 | } | |
3848 | ||
3849 | static void | |
fba45db2 | 3850 | variables_info (char *regexp, int from_tty) |
c906108c | 3851 | { |
176620f1 | 3852 | symtab_symbol_info (regexp, VARIABLES_DOMAIN, from_tty); |
c906108c SS |
3853 | } |
3854 | ||
3855 | static void | |
fba45db2 | 3856 | functions_info (char *regexp, int from_tty) |
c906108c | 3857 | { |
176620f1 | 3858 | symtab_symbol_info (regexp, FUNCTIONS_DOMAIN, from_tty); |
c906108c SS |
3859 | } |
3860 | ||
357e46e7 | 3861 | |
c906108c | 3862 | static void |
fba45db2 | 3863 | types_info (char *regexp, int from_tty) |
c906108c | 3864 | { |
176620f1 | 3865 | symtab_symbol_info (regexp, TYPES_DOMAIN, from_tty); |
c906108c SS |
3866 | } |
3867 | ||
c378eb4e | 3868 | /* Breakpoint all functions matching regular expression. */ |
8926118c | 3869 | |
8b93c638 | 3870 | void |
fba45db2 | 3871 | rbreak_command_wrapper (char *regexp, int from_tty) |
8b93c638 JM |
3872 | { |
3873 | rbreak_command (regexp, from_tty); | |
3874 | } | |
8926118c | 3875 | |
95a42b64 TT |
3876 | /* A cleanup function that calls end_rbreak_breakpoints. */ |
3877 | ||
3878 | static void | |
3879 | do_end_rbreak_breakpoints (void *ignore) | |
3880 | { | |
3881 | end_rbreak_breakpoints (); | |
3882 | } | |
3883 | ||
c906108c | 3884 | static void |
fba45db2 | 3885 | rbreak_command (char *regexp, int from_tty) |
c906108c SS |
3886 | { |
3887 | struct symbol_search *ss; | |
3888 | struct symbol_search *p; | |
3889 | struct cleanup *old_chain; | |
95a42b64 TT |
3890 | char *string = NULL; |
3891 | int len = 0; | |
9c1e305a | 3892 | char **files = NULL, *file_name; |
8bd10a10 | 3893 | int nfiles = 0; |
c906108c | 3894 | |
8bd10a10 CM |
3895 | if (regexp) |
3896 | { | |
3897 | char *colon = strchr (regexp, ':'); | |
433759f7 | 3898 | |
8bd10a10 CM |
3899 | if (colon && *(colon + 1) != ':') |
3900 | { | |
3901 | int colon_index; | |
8bd10a10 CM |
3902 | |
3903 | colon_index = colon - regexp; | |
3904 | file_name = alloca (colon_index + 1); | |
3905 | memcpy (file_name, regexp, colon_index); | |
3906 | file_name[colon_index--] = 0; | |
3907 | while (isspace (file_name[colon_index])) | |
3908 | file_name[colon_index--] = 0; | |
3909 | files = &file_name; | |
3910 | nfiles = 1; | |
3911 | regexp = colon + 1; | |
3912 | while (isspace (*regexp)) regexp++; | |
3913 | } | |
3914 | } | |
3915 | ||
3916 | search_symbols (regexp, FUNCTIONS_DOMAIN, nfiles, files, &ss); | |
5bd98722 | 3917 | old_chain = make_cleanup_free_search_symbols (ss); |
95a42b64 | 3918 | make_cleanup (free_current_contents, &string); |
c906108c | 3919 | |
95a42b64 TT |
3920 | start_rbreak_breakpoints (); |
3921 | make_cleanup (do_end_rbreak_breakpoints, NULL); | |
c906108c SS |
3922 | for (p = ss; p != NULL; p = p->next) |
3923 | { | |
3924 | if (p->msymbol == NULL) | |
c5aa993b | 3925 | { |
95a42b64 TT |
3926 | int newlen = (strlen (p->symtab->filename) |
3927 | + strlen (SYMBOL_LINKAGE_NAME (p->symbol)) | |
3928 | + 4); | |
433759f7 | 3929 | |
95a42b64 TT |
3930 | if (newlen > len) |
3931 | { | |
3932 | string = xrealloc (string, newlen); | |
3933 | len = newlen; | |
3934 | } | |
c5aa993b JM |
3935 | strcpy (string, p->symtab->filename); |
3936 | strcat (string, ":'"); | |
2335f48e | 3937 | strcat (string, SYMBOL_LINKAGE_NAME (p->symbol)); |
c5aa993b JM |
3938 | strcat (string, "'"); |
3939 | break_command (string, from_tty); | |
176620f1 | 3940 | print_symbol_info (FUNCTIONS_DOMAIN, |
c5aa993b JM |
3941 | p->symtab, |
3942 | p->symbol, | |
3943 | p->block, | |
3944 | p->symtab->filename); | |
3945 | } | |
c906108c | 3946 | else |
c5aa993b | 3947 | { |
433759f7 MS |
3948 | int newlen = (strlen (SYMBOL_LINKAGE_NAME (p->msymbol)) + 3); |
3949 | ||
95a42b64 TT |
3950 | if (newlen > len) |
3951 | { | |
3952 | string = xrealloc (string, newlen); | |
3953 | len = newlen; | |
3954 | } | |
6214f497 DJ |
3955 | strcpy (string, "'"); |
3956 | strcat (string, SYMBOL_LINKAGE_NAME (p->msymbol)); | |
3957 | strcat (string, "'"); | |
3958 | ||
3959 | break_command (string, from_tty); | |
c5aa993b | 3960 | printf_filtered ("<function, no debug info> %s;\n", |
de5ad195 | 3961 | SYMBOL_PRINT_NAME (p->msymbol)); |
c5aa993b | 3962 | } |
c906108c SS |
3963 | } |
3964 | ||
3965 | do_cleanups (old_chain); | |
3966 | } | |
c906108c | 3967 | \f |
c5aa993b | 3968 | |
1976171a JK |
3969 | /* Evaluate if NAME matches SYM_TEXT and SYM_TEXT_LEN. |
3970 | ||
3971 | Either sym_text[sym_text_len] != '(' and then we search for any | |
3972 | symbol starting with SYM_TEXT text. | |
3973 | ||
3974 | Otherwise sym_text[sym_text_len] == '(' and then we require symbol name to | |
3975 | be terminated at that point. Partial symbol tables do not have parameters | |
3976 | information. */ | |
3977 | ||
3978 | static int | |
3979 | compare_symbol_name (const char *name, const char *sym_text, int sym_text_len) | |
3980 | { | |
3981 | int (*ncmp) (const char *, const char *, size_t); | |
3982 | ||
3983 | ncmp = (case_sensitivity == case_sensitive_on ? strncmp : strncasecmp); | |
3984 | ||
3985 | if (ncmp (name, sym_text, sym_text_len) != 0) | |
3986 | return 0; | |
3987 | ||
3988 | if (sym_text[sym_text_len] == '(') | |
3989 | { | |
3990 | /* User searches for `name(someth...'. Require NAME to be terminated. | |
3991 | Normally psymtabs and gdbindex have no parameter types so '\0' will be | |
3992 | present but accept even parameters presence. In this case this | |
3993 | function is in fact strcmp_iw but whitespace skipping is not supported | |
3994 | for tab completion. */ | |
3995 | ||
3996 | if (name[sym_text_len] != '\0' && name[sym_text_len] != '(') | |
3997 | return 0; | |
3998 | } | |
3999 | ||
4000 | return 1; | |
4001 | } | |
4002 | ||
821296b7 SA |
4003 | /* Free any memory associated with a completion list. */ |
4004 | ||
4005 | static void | |
49c4e619 | 4006 | free_completion_list (VEC (char_ptr) **list_ptr) |
821296b7 | 4007 | { |
49c4e619 TT |
4008 | int i; |
4009 | char *p; | |
821296b7 | 4010 | |
49c4e619 TT |
4011 | for (i = 0; VEC_iterate (char_ptr, *list_ptr, i, p); ++i) |
4012 | xfree (p); | |
4013 | VEC_free (char_ptr, *list_ptr); | |
821296b7 SA |
4014 | } |
4015 | ||
4016 | /* Callback for make_cleanup. */ | |
4017 | ||
4018 | static void | |
4019 | do_free_completion_list (void *list) | |
4020 | { | |
4021 | free_completion_list (list); | |
4022 | } | |
4023 | ||
c906108c SS |
4024 | /* Helper routine for make_symbol_completion_list. */ |
4025 | ||
49c4e619 | 4026 | static VEC (char_ptr) *return_val; |
c906108c SS |
4027 | |
4028 | #define COMPLETION_LIST_ADD_SYMBOL(symbol, sym_text, len, text, word) \ | |
c906108c | 4029 | completion_list_add_name \ |
2335f48e | 4030 | (SYMBOL_NATURAL_NAME (symbol), (sym_text), (len), (text), (word)) |
c906108c SS |
4031 | |
4032 | /* Test to see if the symbol specified by SYMNAME (which is already | |
c5aa993b | 4033 | demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN |
c378eb4e | 4034 | characters. If so, add it to the current completion list. */ |
c906108c SS |
4035 | |
4036 | static void | |
0d5cff50 DE |
4037 | completion_list_add_name (const char *symname, |
4038 | const char *sym_text, int sym_text_len, | |
4039 | const char *text, const char *word) | |
c906108c SS |
4040 | { |
4041 | int newsize; | |
c906108c | 4042 | |
c378eb4e | 4043 | /* Clip symbols that cannot match. */ |
1976171a JK |
4044 | if (!compare_symbol_name (symname, sym_text, sym_text_len)) |
4045 | return; | |
c906108c | 4046 | |
c906108c | 4047 | /* We have a match for a completion, so add SYMNAME to the current list |
c378eb4e | 4048 | of matches. Note that the name is moved to freshly malloc'd space. */ |
c906108c SS |
4049 | |
4050 | { | |
4051 | char *new; | |
433759f7 | 4052 | |
c906108c SS |
4053 | if (word == sym_text) |
4054 | { | |
4055 | new = xmalloc (strlen (symname) + 5); | |
4056 | strcpy (new, symname); | |
4057 | } | |
4058 | else if (word > sym_text) | |
4059 | { | |
4060 | /* Return some portion of symname. */ | |
4061 | new = xmalloc (strlen (symname) + 5); | |
4062 | strcpy (new, symname + (word - sym_text)); | |
4063 | } | |
4064 | else | |
4065 | { | |
4066 | /* Return some of SYM_TEXT plus symname. */ | |
4067 | new = xmalloc (strlen (symname) + (sym_text - word) + 5); | |
4068 | strncpy (new, word, sym_text - word); | |
4069 | new[sym_text - word] = '\0'; | |
4070 | strcat (new, symname); | |
4071 | } | |
4072 | ||
49c4e619 | 4073 | VEC_safe_push (char_ptr, return_val, new); |
c906108c SS |
4074 | } |
4075 | } | |
4076 | ||
69636828 AF |
4077 | /* ObjC: In case we are completing on a selector, look as the msymbol |
4078 | again and feed all the selectors into the mill. */ | |
4079 | ||
4080 | static void | |
0d5cff50 DE |
4081 | completion_list_objc_symbol (struct minimal_symbol *msymbol, |
4082 | const char *sym_text, int sym_text_len, | |
4083 | const char *text, const char *word) | |
69636828 AF |
4084 | { |
4085 | static char *tmp = NULL; | |
4086 | static unsigned int tmplen = 0; | |
9af17804 | 4087 | |
0d5cff50 | 4088 | const char *method, *category, *selector; |
69636828 | 4089 | char *tmp2 = NULL; |
9af17804 | 4090 | |
69636828 AF |
4091 | method = SYMBOL_NATURAL_NAME (msymbol); |
4092 | ||
4093 | /* Is it a method? */ | |
4094 | if ((method[0] != '-') && (method[0] != '+')) | |
4095 | return; | |
4096 | ||
4097 | if (sym_text[0] == '[') | |
4098 | /* Complete on shortened method method. */ | |
4099 | completion_list_add_name (method + 1, sym_text, sym_text_len, text, word); | |
9af17804 | 4100 | |
69636828 AF |
4101 | while ((strlen (method) + 1) >= tmplen) |
4102 | { | |
4103 | if (tmplen == 0) | |
4104 | tmplen = 1024; | |
4105 | else | |
4106 | tmplen *= 2; | |
4107 | tmp = xrealloc (tmp, tmplen); | |
4108 | } | |
4109 | selector = strchr (method, ' '); | |
4110 | if (selector != NULL) | |
4111 | selector++; | |
9af17804 | 4112 | |
69636828 | 4113 | category = strchr (method, '('); |
9af17804 | 4114 | |
69636828 AF |
4115 | if ((category != NULL) && (selector != NULL)) |
4116 | { | |
4117 | memcpy (tmp, method, (category - method)); | |
4118 | tmp[category - method] = ' '; | |
4119 | memcpy (tmp + (category - method) + 1, selector, strlen (selector) + 1); | |
4120 | completion_list_add_name (tmp, sym_text, sym_text_len, text, word); | |
4121 | if (sym_text[0] == '[') | |
4122 | completion_list_add_name (tmp + 1, sym_text, sym_text_len, text, word); | |
4123 | } | |
9af17804 | 4124 | |
69636828 AF |
4125 | if (selector != NULL) |
4126 | { | |
4127 | /* Complete on selector only. */ | |
4128 | strcpy (tmp, selector); | |
4129 | tmp2 = strchr (tmp, ']'); | |
4130 | if (tmp2 != NULL) | |
4131 | *tmp2 = '\0'; | |
9af17804 | 4132 | |
69636828 AF |
4133 | completion_list_add_name (tmp, sym_text, sym_text_len, text, word); |
4134 | } | |
4135 | } | |
4136 | ||
4137 | /* Break the non-quoted text based on the characters which are in | |
c378eb4e | 4138 | symbols. FIXME: This should probably be language-specific. */ |
69636828 AF |
4139 | |
4140 | static char * | |
4141 | language_search_unquoted_string (char *text, char *p) | |
4142 | { | |
4143 | for (; p > text; --p) | |
4144 | { | |
4145 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0') | |
4146 | continue; | |
4147 | else | |
4148 | { | |
4149 | if ((current_language->la_language == language_objc)) | |
4150 | { | |
c378eb4e | 4151 | if (p[-1] == ':') /* Might be part of a method name. */ |
69636828 AF |
4152 | continue; |
4153 | else if (p[-1] == '[' && (p[-2] == '-' || p[-2] == '+')) | |
c378eb4e | 4154 | p -= 2; /* Beginning of a method name. */ |
69636828 | 4155 | else if (p[-1] == ' ' || p[-1] == '(' || p[-1] == ')') |
c378eb4e | 4156 | { /* Might be part of a method name. */ |
69636828 AF |
4157 | char *t = p; |
4158 | ||
4159 | /* Seeing a ' ' or a '(' is not conclusive evidence | |
4160 | that we are in the middle of a method name. However, | |
4161 | finding "-[" or "+[" should be pretty un-ambiguous. | |
4162 | Unfortunately we have to find it now to decide. */ | |
4163 | ||
4164 | while (t > text) | |
4165 | if (isalnum (t[-1]) || t[-1] == '_' || | |
4166 | t[-1] == ' ' || t[-1] == ':' || | |
4167 | t[-1] == '(' || t[-1] == ')') | |
4168 | --t; | |
4169 | else | |
4170 | break; | |
4171 | ||
4172 | if (t[-1] == '[' && (t[-2] == '-' || t[-2] == '+')) | |
c378eb4e MS |
4173 | p = t - 2; /* Method name detected. */ |
4174 | /* Else we leave with p unchanged. */ | |
69636828 AF |
4175 | } |
4176 | } | |
4177 | break; | |
4178 | } | |
4179 | } | |
4180 | return p; | |
4181 | } | |
4182 | ||
edb3359d DJ |
4183 | static void |
4184 | completion_list_add_fields (struct symbol *sym, char *sym_text, | |
4185 | int sym_text_len, char *text, char *word) | |
4186 | { | |
4187 | if (SYMBOL_CLASS (sym) == LOC_TYPEDEF) | |
4188 | { | |
4189 | struct type *t = SYMBOL_TYPE (sym); | |
4190 | enum type_code c = TYPE_CODE (t); | |
4191 | int j; | |
4192 | ||
4193 | if (c == TYPE_CODE_UNION || c == TYPE_CODE_STRUCT) | |
4194 | for (j = TYPE_N_BASECLASSES (t); j < TYPE_NFIELDS (t); j++) | |
4195 | if (TYPE_FIELD_NAME (t, j)) | |
4196 | completion_list_add_name (TYPE_FIELD_NAME (t, j), | |
4197 | sym_text, sym_text_len, text, word); | |
4198 | } | |
4199 | } | |
4200 | ||
ccefe4c4 | 4201 | /* Type of the user_data argument passed to add_macro_name or |
7b08b9eb | 4202 | expand_partial_symbol_name. The contents are simply whatever is |
ccefe4c4 TT |
4203 | needed by completion_list_add_name. */ |
4204 | struct add_name_data | |
9a044a89 TT |
4205 | { |
4206 | char *sym_text; | |
4207 | int sym_text_len; | |
4208 | char *text; | |
4209 | char *word; | |
4210 | }; | |
4211 | ||
4212 | /* A callback used with macro_for_each and macro_for_each_in_scope. | |
4213 | This adds a macro's name to the current completion list. */ | |
eca864fe | 4214 | |
9a044a89 TT |
4215 | static void |
4216 | add_macro_name (const char *name, const struct macro_definition *ignore, | |
9b158ba0 | 4217 | struct macro_source_file *ignore2, int ignore3, |
9a044a89 TT |
4218 | void *user_data) |
4219 | { | |
ccefe4c4 | 4220 | struct add_name_data *datum = (struct add_name_data *) user_data; |
433759f7 | 4221 | |
ccefe4c4 TT |
4222 | completion_list_add_name ((char *) name, |
4223 | datum->sym_text, datum->sym_text_len, | |
4224 | datum->text, datum->word); | |
4225 | } | |
4226 | ||
7b08b9eb | 4227 | /* A callback for expand_partial_symbol_names. */ |
eca864fe | 4228 | |
7b08b9eb | 4229 | static int |
e078317b | 4230 | expand_partial_symbol_name (const char *name, void *user_data) |
ccefe4c4 TT |
4231 | { |
4232 | struct add_name_data *datum = (struct add_name_data *) user_data; | |
165195f4 | 4233 | |
1976171a | 4234 | return compare_symbol_name (name, datum->sym_text, datum->sym_text_len); |
9a044a89 TT |
4235 | } |
4236 | ||
49c4e619 | 4237 | VEC (char_ptr) * |
f55ee35c | 4238 | default_make_symbol_completion_list_break_on (char *text, char *word, |
2f68a895 TT |
4239 | const char *break_on, |
4240 | enum type_code code) | |
c906108c | 4241 | { |
41d27058 JB |
4242 | /* Problem: All of the symbols have to be copied because readline |
4243 | frees them. I'm not going to worry about this; hopefully there | |
4244 | won't be that many. */ | |
4245 | ||
de4f826b DC |
4246 | struct symbol *sym; |
4247 | struct symtab *s; | |
de4f826b DC |
4248 | struct minimal_symbol *msymbol; |
4249 | struct objfile *objfile; | |
edb3359d DJ |
4250 | struct block *b; |
4251 | const struct block *surrounding_static_block, *surrounding_global_block; | |
8157b174 | 4252 | struct block_iterator iter; |
c906108c SS |
4253 | /* The symbol we are completing on. Points in same buffer as text. */ |
4254 | char *sym_text; | |
4255 | /* Length of sym_text. */ | |
4256 | int sym_text_len; | |
ccefe4c4 | 4257 | struct add_name_data datum; |
821296b7 | 4258 | struct cleanup *back_to; |
c906108c | 4259 | |
41d27058 | 4260 | /* Now look for the symbol we are supposed to complete on. */ |
c906108c SS |
4261 | { |
4262 | char *p; | |
4263 | char quote_found; | |
4264 | char *quote_pos = NULL; | |
4265 | ||
4266 | /* First see if this is a quoted string. */ | |
4267 | quote_found = '\0'; | |
4268 | for (p = text; *p != '\0'; ++p) | |
4269 | { | |
4270 | if (quote_found != '\0') | |
4271 | { | |
4272 | if (*p == quote_found) | |
4273 | /* Found close quote. */ | |
4274 | quote_found = '\0'; | |
4275 | else if (*p == '\\' && p[1] == quote_found) | |
4276 | /* A backslash followed by the quote character | |
c5aa993b | 4277 | doesn't end the string. */ |
c906108c SS |
4278 | ++p; |
4279 | } | |
4280 | else if (*p == '\'' || *p == '"') | |
4281 | { | |
4282 | quote_found = *p; | |
4283 | quote_pos = p; | |
4284 | } | |
4285 | } | |
4286 | if (quote_found == '\'') | |
4287 | /* A string within single quotes can be a symbol, so complete on it. */ | |
4288 | sym_text = quote_pos + 1; | |
4289 | else if (quote_found == '"') | |
4290 | /* A double-quoted string is never a symbol, nor does it make sense | |
c5aa993b | 4291 | to complete it any other way. */ |
c94fdfd0 | 4292 | { |
49c4e619 | 4293 | return NULL; |
c94fdfd0 | 4294 | } |
c906108c SS |
4295 | else |
4296 | { | |
4297 | /* It is not a quoted string. Break it based on the characters | |
4298 | which are in symbols. */ | |
4299 | while (p > text) | |
4300 | { | |
95699ff0 | 4301 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0' |
f55ee35c | 4302 | || p[-1] == ':' || strchr (break_on, p[-1]) != NULL) |
c906108c SS |
4303 | --p; |
4304 | else | |
4305 | break; | |
4306 | } | |
4307 | sym_text = p; | |
4308 | } | |
4309 | } | |
4310 | ||
4311 | sym_text_len = strlen (sym_text); | |
4312 | ||
1976171a JK |
4313 | /* Prepare SYM_TEXT_LEN for compare_symbol_name. */ |
4314 | ||
4315 | if (current_language->la_language == language_cplus | |
4316 | || current_language->la_language == language_java | |
4317 | || current_language->la_language == language_fortran) | |
4318 | { | |
4319 | /* These languages may have parameters entered by user but they are never | |
4320 | present in the partial symbol tables. */ | |
4321 | ||
4322 | const char *cs = memchr (sym_text, '(', sym_text_len); | |
4323 | ||
4324 | if (cs) | |
4325 | sym_text_len = cs - sym_text; | |
4326 | } | |
4327 | gdb_assert (sym_text[sym_text_len] == '\0' || sym_text[sym_text_len] == '('); | |
4328 | ||
49c4e619 | 4329 | return_val = NULL; |
821296b7 | 4330 | back_to = make_cleanup (do_free_completion_list, &return_val); |
c906108c | 4331 | |
ccefe4c4 TT |
4332 | datum.sym_text = sym_text; |
4333 | datum.sym_text_len = sym_text_len; | |
4334 | datum.text = text; | |
4335 | datum.word = word; | |
4336 | ||
c906108c | 4337 | /* Look through the partial symtabs for all symbols which begin |
7b08b9eb JK |
4338 | by matching SYM_TEXT. Expand all CUs that you find to the list. |
4339 | The real names will get added by COMPLETION_LIST_ADD_SYMBOL below. */ | |
4340 | expand_partial_symbol_names (expand_partial_symbol_name, &datum); | |
c906108c SS |
4341 | |
4342 | /* At this point scan through the misc symbol vectors and add each | |
4343 | symbol you find to the list. Eventually we want to ignore | |
4344 | anything that isn't a text symbol (everything else will be | |
4345 | handled by the psymtab code above). */ | |
4346 | ||
2f68a895 TT |
4347 | if (code == TYPE_CODE_UNDEF) |
4348 | { | |
4349 | ALL_MSYMBOLS (objfile, msymbol) | |
4350 | { | |
4351 | QUIT; | |
4352 | COMPLETION_LIST_ADD_SYMBOL (msymbol, sym_text, sym_text_len, text, | |
4353 | word); | |
9af17804 | 4354 | |
2f68a895 TT |
4355 | completion_list_objc_symbol (msymbol, sym_text, sym_text_len, text, |
4356 | word); | |
4357 | } | |
4358 | } | |
c906108c SS |
4359 | |
4360 | /* Search upwards from currently selected frame (so that we can | |
edb3359d DJ |
4361 | complete on local vars). Also catch fields of types defined in |
4362 | this places which match our text string. Only complete on types | |
c378eb4e | 4363 | visible from current context. */ |
edb3359d DJ |
4364 | |
4365 | b = get_selected_block (0); | |
4366 | surrounding_static_block = block_static_block (b); | |
4367 | surrounding_global_block = block_global_block (b); | |
4368 | if (surrounding_static_block != NULL) | |
4369 | while (b != surrounding_static_block) | |
4370 | { | |
4371 | QUIT; | |
c906108c | 4372 | |
edb3359d DJ |
4373 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
4374 | { | |
2f68a895 TT |
4375 | if (code == TYPE_CODE_UNDEF) |
4376 | { | |
4377 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, | |
4378 | word); | |
4379 | completion_list_add_fields (sym, sym_text, sym_text_len, text, | |
4380 | word); | |
4381 | } | |
4382 | else if (SYMBOL_DOMAIN (sym) == STRUCT_DOMAIN | |
4383 | && TYPE_CODE (SYMBOL_TYPE (sym)) == code) | |
4384 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, | |
4385 | word); | |
edb3359d | 4386 | } |
c5aa993b | 4387 | |
edb3359d DJ |
4388 | /* Stop when we encounter an enclosing function. Do not stop for |
4389 | non-inlined functions - the locals of the enclosing function | |
4390 | are in scope for a nested function. */ | |
4391 | if (BLOCK_FUNCTION (b) != NULL && block_inlined_p (b)) | |
4392 | break; | |
4393 | b = BLOCK_SUPERBLOCK (b); | |
4394 | } | |
c906108c | 4395 | |
edb3359d | 4396 | /* Add fields from the file's types; symbols will be added below. */ |
c906108c | 4397 | |
2f68a895 TT |
4398 | if (code == TYPE_CODE_UNDEF) |
4399 | { | |
4400 | if (surrounding_static_block != NULL) | |
4401 | ALL_BLOCK_SYMBOLS (surrounding_static_block, iter, sym) | |
4402 | completion_list_add_fields (sym, sym_text, sym_text_len, text, word); | |
edb3359d | 4403 | |
2f68a895 TT |
4404 | if (surrounding_global_block != NULL) |
4405 | ALL_BLOCK_SYMBOLS (surrounding_global_block, iter, sym) | |
4406 | completion_list_add_fields (sym, sym_text, sym_text_len, text, word); | |
4407 | } | |
c906108c SS |
4408 | |
4409 | /* Go through the symtabs and check the externs and statics for | |
4410 | symbols which match. */ | |
4411 | ||
11309657 | 4412 | ALL_PRIMARY_SYMTABS (objfile, s) |
c5aa993b JM |
4413 | { |
4414 | QUIT; | |
4415 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK); | |
de4f826b | 4416 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c5aa993b | 4417 | { |
2f68a895 TT |
4418 | if (code == TYPE_CODE_UNDEF |
4419 | || (SYMBOL_DOMAIN (sym) == STRUCT_DOMAIN | |
4420 | && TYPE_CODE (SYMBOL_TYPE (sym)) == code)) | |
4421 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); | |
c5aa993b JM |
4422 | } |
4423 | } | |
c906108c | 4424 | |
11309657 | 4425 | ALL_PRIMARY_SYMTABS (objfile, s) |
c5aa993b JM |
4426 | { |
4427 | QUIT; | |
4428 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK); | |
de4f826b | 4429 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c5aa993b | 4430 | { |
2f68a895 TT |
4431 | if (code == TYPE_CODE_UNDEF |
4432 | || (SYMBOL_DOMAIN (sym) == STRUCT_DOMAIN | |
4433 | && TYPE_CODE (SYMBOL_TYPE (sym)) == code)) | |
4434 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); | |
c5aa993b JM |
4435 | } |
4436 | } | |
c906108c | 4437 | |
2f68a895 TT |
4438 | /* Skip macros if we are completing a struct tag -- arguable but |
4439 | usually what is expected. */ | |
4440 | if (current_language->la_macro_expansion == macro_expansion_c | |
4441 | && code == TYPE_CODE_UNDEF) | |
9a044a89 TT |
4442 | { |
4443 | struct macro_scope *scope; | |
9a044a89 TT |
4444 | |
4445 | /* Add any macros visible in the default scope. Note that this | |
4446 | may yield the occasional wrong result, because an expression | |
4447 | might be evaluated in a scope other than the default. For | |
4448 | example, if the user types "break file:line if <TAB>", the | |
4449 | resulting expression will be evaluated at "file:line" -- but | |
4450 | at there does not seem to be a way to detect this at | |
4451 | completion time. */ | |
4452 | scope = default_macro_scope (); | |
4453 | if (scope) | |
4454 | { | |
4455 | macro_for_each_in_scope (scope->file, scope->line, | |
4456 | add_macro_name, &datum); | |
4457 | xfree (scope); | |
4458 | } | |
4459 | ||
4460 | /* User-defined macros are always visible. */ | |
4461 | macro_for_each (macro_user_macros, add_macro_name, &datum); | |
4462 | } | |
4463 | ||
821296b7 | 4464 | discard_cleanups (back_to); |
c906108c SS |
4465 | return (return_val); |
4466 | } | |
4467 | ||
49c4e619 | 4468 | VEC (char_ptr) * |
2f68a895 TT |
4469 | default_make_symbol_completion_list (char *text, char *word, |
4470 | enum type_code code) | |
f55ee35c | 4471 | { |
2f68a895 | 4472 | return default_make_symbol_completion_list_break_on (text, word, "", code); |
f55ee35c JK |
4473 | } |
4474 | ||
49c4e619 TT |
4475 | /* Return a vector of all symbols (regardless of class) which begin by |
4476 | matching TEXT. If the answer is no symbols, then the return value | |
4477 | is NULL. */ | |
41d27058 | 4478 | |
49c4e619 | 4479 | VEC (char_ptr) * |
41d27058 JB |
4480 | make_symbol_completion_list (char *text, char *word) |
4481 | { | |
2f68a895 TT |
4482 | return current_language->la_make_symbol_completion_list (text, word, |
4483 | TYPE_CODE_UNDEF); | |
4484 | } | |
4485 | ||
4486 | /* Like make_symbol_completion_list, but only return STRUCT_DOMAIN | |
4487 | symbols whose type code is CODE. */ | |
4488 | ||
4489 | VEC (char_ptr) * | |
4490 | make_symbol_completion_type (char *text, char *word, enum type_code code) | |
4491 | { | |
4492 | gdb_assert (code == TYPE_CODE_UNION | |
4493 | || code == TYPE_CODE_STRUCT | |
4494 | || code == TYPE_CODE_CLASS | |
4495 | || code == TYPE_CODE_ENUM); | |
4496 | return current_language->la_make_symbol_completion_list (text, word, code); | |
41d27058 JB |
4497 | } |
4498 | ||
d8906c6f TJB |
4499 | /* Like make_symbol_completion_list, but suitable for use as a |
4500 | completion function. */ | |
4501 | ||
49c4e619 | 4502 | VEC (char_ptr) * |
d8906c6f TJB |
4503 | make_symbol_completion_list_fn (struct cmd_list_element *ignore, |
4504 | char *text, char *word) | |
4505 | { | |
4506 | return make_symbol_completion_list (text, word); | |
4507 | } | |
4508 | ||
c94fdfd0 EZ |
4509 | /* Like make_symbol_completion_list, but returns a list of symbols |
4510 | defined in a source file FILE. */ | |
4511 | ||
49c4e619 | 4512 | VEC (char_ptr) * |
c94fdfd0 EZ |
4513 | make_file_symbol_completion_list (char *text, char *word, char *srcfile) |
4514 | { | |
52f0bd74 AC |
4515 | struct symbol *sym; |
4516 | struct symtab *s; | |
4517 | struct block *b; | |
8157b174 | 4518 | struct block_iterator iter; |
c94fdfd0 EZ |
4519 | /* The symbol we are completing on. Points in same buffer as text. */ |
4520 | char *sym_text; | |
4521 | /* Length of sym_text. */ | |
4522 | int sym_text_len; | |
4523 | ||
4524 | /* Now look for the symbol we are supposed to complete on. | |
4525 | FIXME: This should be language-specific. */ | |
4526 | { | |
4527 | char *p; | |
4528 | char quote_found; | |
4529 | char *quote_pos = NULL; | |
4530 | ||
4531 | /* First see if this is a quoted string. */ | |
4532 | quote_found = '\0'; | |
4533 | for (p = text; *p != '\0'; ++p) | |
4534 | { | |
4535 | if (quote_found != '\0') | |
4536 | { | |
4537 | if (*p == quote_found) | |
4538 | /* Found close quote. */ | |
4539 | quote_found = '\0'; | |
4540 | else if (*p == '\\' && p[1] == quote_found) | |
4541 | /* A backslash followed by the quote character | |
4542 | doesn't end the string. */ | |
4543 | ++p; | |
4544 | } | |
4545 | else if (*p == '\'' || *p == '"') | |
4546 | { | |
4547 | quote_found = *p; | |
4548 | quote_pos = p; | |
4549 | } | |
4550 | } | |
4551 | if (quote_found == '\'') | |
4552 | /* A string within single quotes can be a symbol, so complete on it. */ | |
4553 | sym_text = quote_pos + 1; | |
4554 | else if (quote_found == '"') | |
4555 | /* A double-quoted string is never a symbol, nor does it make sense | |
4556 | to complete it any other way. */ | |
4557 | { | |
49c4e619 | 4558 | return NULL; |
c94fdfd0 EZ |
4559 | } |
4560 | else | |
4561 | { | |
69636828 AF |
4562 | /* Not a quoted string. */ |
4563 | sym_text = language_search_unquoted_string (text, p); | |
c94fdfd0 EZ |
4564 | } |
4565 | } | |
4566 | ||
4567 | sym_text_len = strlen (sym_text); | |
4568 | ||
49c4e619 | 4569 | return_val = NULL; |
c94fdfd0 EZ |
4570 | |
4571 | /* Find the symtab for SRCFILE (this loads it if it was not yet read | |
4572 | in). */ | |
4573 | s = lookup_symtab (srcfile); | |
4574 | if (s == NULL) | |
4575 | { | |
4576 | /* Maybe they typed the file with leading directories, while the | |
4577 | symbol tables record only its basename. */ | |
31889e00 | 4578 | const char *tail = lbasename (srcfile); |
c94fdfd0 EZ |
4579 | |
4580 | if (tail > srcfile) | |
4581 | s = lookup_symtab (tail); | |
4582 | } | |
4583 | ||
4584 | /* If we have no symtab for that file, return an empty list. */ | |
4585 | if (s == NULL) | |
4586 | return (return_val); | |
4587 | ||
4588 | /* Go through this symtab and check the externs and statics for | |
4589 | symbols which match. */ | |
4590 | ||
4591 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK); | |
de4f826b | 4592 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c94fdfd0 | 4593 | { |
c94fdfd0 EZ |
4594 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
4595 | } | |
4596 | ||
4597 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK); | |
de4f826b | 4598 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c94fdfd0 | 4599 | { |
c94fdfd0 EZ |
4600 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
4601 | } | |
4602 | ||
4603 | return (return_val); | |
4604 | } | |
4605 | ||
4606 | /* A helper function for make_source_files_completion_list. It adds | |
4607 | another file name to a list of possible completions, growing the | |
4608 | list as necessary. */ | |
4609 | ||
4610 | static void | |
4611 | add_filename_to_list (const char *fname, char *text, char *word, | |
49c4e619 | 4612 | VEC (char_ptr) **list) |
c94fdfd0 EZ |
4613 | { |
4614 | char *new; | |
4615 | size_t fnlen = strlen (fname); | |
4616 | ||
c94fdfd0 EZ |
4617 | if (word == text) |
4618 | { | |
4619 | /* Return exactly fname. */ | |
4620 | new = xmalloc (fnlen + 5); | |
4621 | strcpy (new, fname); | |
4622 | } | |
4623 | else if (word > text) | |
4624 | { | |
4625 | /* Return some portion of fname. */ | |
4626 | new = xmalloc (fnlen + 5); | |
4627 | strcpy (new, fname + (word - text)); | |
4628 | } | |
4629 | else | |
4630 | { | |
4631 | /* Return some of TEXT plus fname. */ | |
4632 | new = xmalloc (fnlen + (text - word) + 5); | |
4633 | strncpy (new, word, text - word); | |
4634 | new[text - word] = '\0'; | |
4635 | strcat (new, fname); | |
4636 | } | |
49c4e619 | 4637 | VEC_safe_push (char_ptr, *list, new); |
c94fdfd0 EZ |
4638 | } |
4639 | ||
4640 | static int | |
4641 | not_interesting_fname (const char *fname) | |
4642 | { | |
4643 | static const char *illegal_aliens[] = { | |
4644 | "_globals_", /* inserted by coff_symtab_read */ | |
4645 | NULL | |
4646 | }; | |
4647 | int i; | |
4648 | ||
4649 | for (i = 0; illegal_aliens[i]; i++) | |
4650 | { | |
0ba1096a | 4651 | if (filename_cmp (fname, illegal_aliens[i]) == 0) |
c94fdfd0 EZ |
4652 | return 1; |
4653 | } | |
4654 | return 0; | |
4655 | } | |
4656 | ||
ccefe4c4 TT |
4657 | /* An object of this type is passed as the user_data argument to |
4658 | map_partial_symbol_filenames. */ | |
4659 | struct add_partial_filename_data | |
4660 | { | |
9fdc877b | 4661 | struct filename_seen_cache *filename_seen_cache; |
ccefe4c4 TT |
4662 | char *text; |
4663 | char *word; | |
4664 | int text_len; | |
49c4e619 | 4665 | VEC (char_ptr) **list; |
ccefe4c4 TT |
4666 | }; |
4667 | ||
4668 | /* A callback for map_partial_symbol_filenames. */ | |
eca864fe | 4669 | |
ccefe4c4 | 4670 | static void |
2837d59e | 4671 | maybe_add_partial_symtab_filename (const char *filename, const char *fullname, |
ccefe4c4 TT |
4672 | void *user_data) |
4673 | { | |
4674 | struct add_partial_filename_data *data = user_data; | |
4675 | ||
4676 | if (not_interesting_fname (filename)) | |
4677 | return; | |
9fdc877b | 4678 | if (!filename_seen (data->filename_seen_cache, filename, 1) |
0ba1096a | 4679 | && filename_ncmp (filename, data->text, data->text_len) == 0) |
ccefe4c4 TT |
4680 | { |
4681 | /* This file matches for a completion; add it to the | |
4682 | current list of matches. */ | |
49c4e619 | 4683 | add_filename_to_list (filename, data->text, data->word, data->list); |
ccefe4c4 TT |
4684 | } |
4685 | else | |
4686 | { | |
4687 | const char *base_name = lbasename (filename); | |
433759f7 | 4688 | |
ccefe4c4 | 4689 | if (base_name != filename |
9fdc877b | 4690 | && !filename_seen (data->filename_seen_cache, base_name, 1) |
0ba1096a | 4691 | && filename_ncmp (base_name, data->text, data->text_len) == 0) |
49c4e619 | 4692 | add_filename_to_list (base_name, data->text, data->word, data->list); |
ccefe4c4 TT |
4693 | } |
4694 | } | |
4695 | ||
49c4e619 TT |
4696 | /* Return a vector of all source files whose names begin with matching |
4697 | TEXT. The file names are looked up in the symbol tables of this | |
4698 | program. If the answer is no matchess, then the return value is | |
4699 | NULL. */ | |
c94fdfd0 | 4700 | |
49c4e619 | 4701 | VEC (char_ptr) * |
c94fdfd0 EZ |
4702 | make_source_files_completion_list (char *text, char *word) |
4703 | { | |
52f0bd74 | 4704 | struct symtab *s; |
52f0bd74 | 4705 | struct objfile *objfile; |
c94fdfd0 | 4706 | size_t text_len = strlen (text); |
49c4e619 | 4707 | VEC (char_ptr) *list = NULL; |
31889e00 | 4708 | const char *base_name; |
ccefe4c4 | 4709 | struct add_partial_filename_data datum; |
9fdc877b DE |
4710 | struct filename_seen_cache *filename_seen_cache; |
4711 | struct cleanup *back_to, *cache_cleanup; | |
c94fdfd0 | 4712 | |
c94fdfd0 EZ |
4713 | if (!have_full_symbols () && !have_partial_symbols ()) |
4714 | return list; | |
4715 | ||
821296b7 SA |
4716 | back_to = make_cleanup (do_free_completion_list, &list); |
4717 | ||
9fdc877b DE |
4718 | filename_seen_cache = create_filename_seen_cache (); |
4719 | cache_cleanup = make_cleanup (delete_filename_seen_cache, | |
4720 | filename_seen_cache); | |
4721 | ||
c94fdfd0 EZ |
4722 | ALL_SYMTABS (objfile, s) |
4723 | { | |
4724 | if (not_interesting_fname (s->filename)) | |
4725 | continue; | |
9fdc877b | 4726 | if (!filename_seen (filename_seen_cache, s->filename, 1) |
0ba1096a | 4727 | && filename_ncmp (s->filename, text, text_len) == 0) |
c94fdfd0 EZ |
4728 | { |
4729 | /* This file matches for a completion; add it to the current | |
4730 | list of matches. */ | |
49c4e619 | 4731 | add_filename_to_list (s->filename, text, word, &list); |
c94fdfd0 EZ |
4732 | } |
4733 | else | |
4734 | { | |
4735 | /* NOTE: We allow the user to type a base name when the | |
4736 | debug info records leading directories, but not the other | |
4737 | way around. This is what subroutines of breakpoint | |
4738 | command do when they parse file names. */ | |
31889e00 | 4739 | base_name = lbasename (s->filename); |
c94fdfd0 | 4740 | if (base_name != s->filename |
9fdc877b | 4741 | && !filename_seen (filename_seen_cache, base_name, 1) |
0ba1096a | 4742 | && filename_ncmp (base_name, text, text_len) == 0) |
49c4e619 | 4743 | add_filename_to_list (base_name, text, word, &list); |
c94fdfd0 EZ |
4744 | } |
4745 | } | |
4746 | ||
9fdc877b | 4747 | datum.filename_seen_cache = filename_seen_cache; |
ccefe4c4 TT |
4748 | datum.text = text; |
4749 | datum.word = word; | |
4750 | datum.text_len = text_len; | |
4751 | datum.list = &list; | |
74e2f255 DE |
4752 | map_partial_symbol_filenames (maybe_add_partial_symtab_filename, &datum, |
4753 | 0 /*need_fullname*/); | |
9fdc877b DE |
4754 | |
4755 | do_cleanups (cache_cleanup); | |
821296b7 | 4756 | discard_cleanups (back_to); |
c94fdfd0 EZ |
4757 | |
4758 | return list; | |
4759 | } | |
4760 | ||
c906108c SS |
4761 | /* Determine if PC is in the prologue of a function. The prologue is the area |
4762 | between the first instruction of a function, and the first executable line. | |
4763 | Returns 1 if PC *might* be in prologue, 0 if definately *not* in prologue. | |
4764 | ||
4765 | If non-zero, func_start is where we think the prologue starts, possibly | |
c378eb4e | 4766 | by previous examination of symbol table information. */ |
c906108c SS |
4767 | |
4768 | int | |
d80b854b | 4769 | in_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR func_start) |
c906108c SS |
4770 | { |
4771 | struct symtab_and_line sal; | |
4772 | CORE_ADDR func_addr, func_end; | |
4773 | ||
54cf9c03 EZ |
4774 | /* We have several sources of information we can consult to figure |
4775 | this out. | |
4776 | - Compilers usually emit line number info that marks the prologue | |
4777 | as its own "source line". So the ending address of that "line" | |
4778 | is the end of the prologue. If available, this is the most | |
4779 | reliable method. | |
4780 | - The minimal symbols and partial symbols, which can usually tell | |
4781 | us the starting and ending addresses of a function. | |
4782 | - If we know the function's start address, we can call the | |
a433963d | 4783 | architecture-defined gdbarch_skip_prologue function to analyze the |
54cf9c03 EZ |
4784 | instruction stream and guess where the prologue ends. |
4785 | - Our `func_start' argument; if non-zero, this is the caller's | |
4786 | best guess as to the function's entry point. At the time of | |
4787 | this writing, handle_inferior_event doesn't get this right, so | |
4788 | it should be our last resort. */ | |
4789 | ||
4790 | /* Consult the partial symbol table, to find which function | |
4791 | the PC is in. */ | |
4792 | if (! find_pc_partial_function (pc, NULL, &func_addr, &func_end)) | |
4793 | { | |
4794 | CORE_ADDR prologue_end; | |
c906108c | 4795 | |
54cf9c03 EZ |
4796 | /* We don't even have minsym information, so fall back to using |
4797 | func_start, if given. */ | |
4798 | if (! func_start) | |
4799 | return 1; /* We *might* be in a prologue. */ | |
c906108c | 4800 | |
d80b854b | 4801 | prologue_end = gdbarch_skip_prologue (gdbarch, func_start); |
c906108c | 4802 | |
54cf9c03 EZ |
4803 | return func_start <= pc && pc < prologue_end; |
4804 | } | |
c906108c | 4805 | |
54cf9c03 EZ |
4806 | /* If we have line number information for the function, that's |
4807 | usually pretty reliable. */ | |
4808 | sal = find_pc_line (func_addr, 0); | |
c906108c | 4809 | |
54cf9c03 EZ |
4810 | /* Now sal describes the source line at the function's entry point, |
4811 | which (by convention) is the prologue. The end of that "line", | |
4812 | sal.end, is the end of the prologue. | |
4813 | ||
4814 | Note that, for functions whose source code is all on a single | |
4815 | line, the line number information doesn't always end up this way. | |
4816 | So we must verify that our purported end-of-prologue address is | |
4817 | *within* the function, not at its start or end. */ | |
4818 | if (sal.line == 0 | |
4819 | || sal.end <= func_addr | |
4820 | || func_end <= sal.end) | |
4821 | { | |
4822 | /* We don't have any good line number info, so use the minsym | |
4823 | information, together with the architecture-specific prologue | |
4824 | scanning code. */ | |
d80b854b | 4825 | CORE_ADDR prologue_end = gdbarch_skip_prologue (gdbarch, func_addr); |
c906108c | 4826 | |
54cf9c03 EZ |
4827 | return func_addr <= pc && pc < prologue_end; |
4828 | } | |
c906108c | 4829 | |
54cf9c03 EZ |
4830 | /* We have line number info, and it looks good. */ |
4831 | return func_addr <= pc && pc < sal.end; | |
c906108c SS |
4832 | } |
4833 | ||
634aa483 AC |
4834 | /* Given PC at the function's start address, attempt to find the |
4835 | prologue end using SAL information. Return zero if the skip fails. | |
4836 | ||
4837 | A non-optimized prologue traditionally has one SAL for the function | |
4838 | and a second for the function body. A single line function has | |
4839 | them both pointing at the same line. | |
4840 | ||
4841 | An optimized prologue is similar but the prologue may contain | |
4842 | instructions (SALs) from the instruction body. Need to skip those | |
4843 | while not getting into the function body. | |
4844 | ||
4845 | The functions end point and an increasing SAL line are used as | |
4846 | indicators of the prologue's endpoint. | |
4847 | ||
7475b06c TJB |
4848 | This code is based on the function refine_prologue_limit |
4849 | (found in ia64). */ | |
634aa483 AC |
4850 | |
4851 | CORE_ADDR | |
d80b854b | 4852 | skip_prologue_using_sal (struct gdbarch *gdbarch, CORE_ADDR func_addr) |
634aa483 AC |
4853 | { |
4854 | struct symtab_and_line prologue_sal; | |
4855 | CORE_ADDR start_pc; | |
4856 | CORE_ADDR end_pc; | |
d54be744 | 4857 | struct block *bl; |
634aa483 AC |
4858 | |
4859 | /* Get an initial range for the function. */ | |
4860 | find_pc_partial_function (func_addr, NULL, &start_pc, &end_pc); | |
d80b854b | 4861 | start_pc += gdbarch_deprecated_function_start_offset (gdbarch); |
634aa483 AC |
4862 | |
4863 | prologue_sal = find_pc_line (start_pc, 0); | |
4864 | if (prologue_sal.line != 0) | |
4865 | { | |
e5dd4106 | 4866 | /* For languages other than assembly, treat two consecutive line |
d54be744 DJ |
4867 | entries at the same address as a zero-instruction prologue. |
4868 | The GNU assembler emits separate line notes for each instruction | |
4869 | in a multi-instruction macro, but compilers generally will not | |
4870 | do this. */ | |
4871 | if (prologue_sal.symtab->language != language_asm) | |
4872 | { | |
4873 | struct linetable *linetable = LINETABLE (prologue_sal.symtab); | |
d54be744 DJ |
4874 | int idx = 0; |
4875 | ||
4876 | /* Skip any earlier lines, and any end-of-sequence marker | |
4877 | from a previous function. */ | |
4878 | while (linetable->item[idx].pc != prologue_sal.pc | |
4879 | || linetable->item[idx].line == 0) | |
4880 | idx++; | |
4881 | ||
4882 | if (idx+1 < linetable->nitems | |
4883 | && linetable->item[idx+1].line != 0 | |
4884 | && linetable->item[idx+1].pc == start_pc) | |
4885 | return start_pc; | |
4886 | } | |
4887 | ||
576c2025 FF |
4888 | /* If there is only one sal that covers the entire function, |
4889 | then it is probably a single line function, like | |
c378eb4e | 4890 | "foo(){}". */ |
91934273 | 4891 | if (prologue_sal.end >= end_pc) |
4e463ff5 | 4892 | return 0; |
d54be744 | 4893 | |
634aa483 AC |
4894 | while (prologue_sal.end < end_pc) |
4895 | { | |
4896 | struct symtab_and_line sal; | |
4897 | ||
4898 | sal = find_pc_line (prologue_sal.end, 0); | |
4899 | if (sal.line == 0) | |
4900 | break; | |
4901 | /* Assume that a consecutive SAL for the same (or larger) | |
4902 | line mark the prologue -> body transition. */ | |
4903 | if (sal.line >= prologue_sal.line) | |
4904 | break; | |
edb3359d DJ |
4905 | |
4906 | /* The line number is smaller. Check that it's from the | |
4907 | same function, not something inlined. If it's inlined, | |
4908 | then there is no point comparing the line numbers. */ | |
4909 | bl = block_for_pc (prologue_sal.end); | |
4910 | while (bl) | |
4911 | { | |
4912 | if (block_inlined_p (bl)) | |
4913 | break; | |
4914 | if (BLOCK_FUNCTION (bl)) | |
4915 | { | |
4916 | bl = NULL; | |
4917 | break; | |
4918 | } | |
4919 | bl = BLOCK_SUPERBLOCK (bl); | |
4920 | } | |
4921 | if (bl != NULL) | |
4922 | break; | |
4923 | ||
634aa483 AC |
4924 | /* The case in which compiler's optimizer/scheduler has |
4925 | moved instructions into the prologue. We look ahead in | |
4926 | the function looking for address ranges whose | |
4927 | corresponding line number is less the first one that we | |
4928 | found for the function. This is more conservative then | |
4929 | refine_prologue_limit which scans a large number of SALs | |
c378eb4e | 4930 | looking for any in the prologue. */ |
634aa483 AC |
4931 | prologue_sal = sal; |
4932 | } | |
4933 | } | |
d54be744 DJ |
4934 | |
4935 | if (prologue_sal.end < end_pc) | |
4936 | /* Return the end of this line, or zero if we could not find a | |
4937 | line. */ | |
4938 | return prologue_sal.end; | |
4939 | else | |
4940 | /* Don't return END_PC, which is past the end of the function. */ | |
4941 | return prologue_sal.pc; | |
634aa483 | 4942 | } |
c906108c | 4943 | \f |
51cc5b07 AC |
4944 | /* Track MAIN */ |
4945 | static char *name_of_main; | |
01f8c46d | 4946 | enum language language_of_main = language_unknown; |
51cc5b07 AC |
4947 | |
4948 | void | |
4949 | set_main_name (const char *name) | |
4950 | { | |
4951 | if (name_of_main != NULL) | |
4952 | { | |
4953 | xfree (name_of_main); | |
4954 | name_of_main = NULL; | |
01f8c46d | 4955 | language_of_main = language_unknown; |
51cc5b07 AC |
4956 | } |
4957 | if (name != NULL) | |
4958 | { | |
4959 | name_of_main = xstrdup (name); | |
01f8c46d | 4960 | language_of_main = language_unknown; |
51cc5b07 AC |
4961 | } |
4962 | } | |
4963 | ||
ea53e89f JB |
4964 | /* Deduce the name of the main procedure, and set NAME_OF_MAIN |
4965 | accordingly. */ | |
4966 | ||
4967 | static void | |
4968 | find_main_name (void) | |
4969 | { | |
cd6c7346 | 4970 | const char *new_main_name; |
ea53e89f JB |
4971 | |
4972 | /* Try to see if the main procedure is in Ada. */ | |
4973 | /* FIXME: brobecker/2005-03-07: Another way of doing this would | |
4974 | be to add a new method in the language vector, and call this | |
4975 | method for each language until one of them returns a non-empty | |
4976 | name. This would allow us to remove this hard-coded call to | |
4977 | an Ada function. It is not clear that this is a better approach | |
4978 | at this point, because all methods need to be written in a way | |
c378eb4e | 4979 | such that false positives never be returned. For instance, it is |
ea53e89f JB |
4980 | important that a method does not return a wrong name for the main |
4981 | procedure if the main procedure is actually written in a different | |
4982 | language. It is easy to guaranty this with Ada, since we use a | |
4983 | special symbol generated only when the main in Ada to find the name | |
c378eb4e | 4984 | of the main procedure. It is difficult however to see how this can |
ea53e89f JB |
4985 | be guarantied for languages such as C, for instance. This suggests |
4986 | that order of call for these methods becomes important, which means | |
4987 | a more complicated approach. */ | |
4988 | new_main_name = ada_main_name (); | |
4989 | if (new_main_name != NULL) | |
9af17804 | 4990 | { |
ea53e89f JB |
4991 | set_main_name (new_main_name); |
4992 | return; | |
4993 | } | |
4994 | ||
a766d390 DE |
4995 | new_main_name = go_main_name (); |
4996 | if (new_main_name != NULL) | |
4997 | { | |
4998 | set_main_name (new_main_name); | |
4999 | return; | |
5000 | } | |
5001 | ||
cd6c7346 PM |
5002 | new_main_name = pascal_main_name (); |
5003 | if (new_main_name != NULL) | |
9af17804 | 5004 | { |
cd6c7346 PM |
5005 | set_main_name (new_main_name); |
5006 | return; | |
5007 | } | |
5008 | ||
ea53e89f JB |
5009 | /* The languages above didn't identify the name of the main procedure. |
5010 | Fallback to "main". */ | |
5011 | set_main_name ("main"); | |
5012 | } | |
5013 | ||
51cc5b07 AC |
5014 | char * |
5015 | main_name (void) | |
5016 | { | |
ea53e89f JB |
5017 | if (name_of_main == NULL) |
5018 | find_main_name (); | |
5019 | ||
5020 | return name_of_main; | |
51cc5b07 AC |
5021 | } |
5022 | ||
ea53e89f JB |
5023 | /* Handle ``executable_changed'' events for the symtab module. */ |
5024 | ||
5025 | static void | |
781b42b0 | 5026 | symtab_observer_executable_changed (void) |
ea53e89f JB |
5027 | { |
5028 | /* NAME_OF_MAIN may no longer be the same, so reset it for now. */ | |
5029 | set_main_name (NULL); | |
5030 | } | |
51cc5b07 | 5031 | |
a6c727b2 DJ |
5032 | /* Return 1 if the supplied producer string matches the ARM RealView |
5033 | compiler (armcc). */ | |
5034 | ||
5035 | int | |
5036 | producer_is_realview (const char *producer) | |
5037 | { | |
5038 | static const char *const arm_idents[] = { | |
5039 | "ARM C Compiler, ADS", | |
5040 | "Thumb C Compiler, ADS", | |
5041 | "ARM C++ Compiler, ADS", | |
5042 | "Thumb C++ Compiler, ADS", | |
5043 | "ARM/Thumb C/C++ Compiler, RVCT", | |
5044 | "ARM C/C++ Compiler, RVCT" | |
5045 | }; | |
5046 | int i; | |
5047 | ||
5048 | if (producer == NULL) | |
5049 | return 0; | |
5050 | ||
5051 | for (i = 0; i < ARRAY_SIZE (arm_idents); i++) | |
5052 | if (strncmp (producer, arm_idents[i], strlen (arm_idents[i])) == 0) | |
5053 | return 1; | |
5054 | ||
5055 | return 0; | |
5056 | } | |
ed0616c6 | 5057 | |
c906108c | 5058 | void |
fba45db2 | 5059 | _initialize_symtab (void) |
c906108c | 5060 | { |
1bedd215 AC |
5061 | add_info ("variables", variables_info, _("\ |
5062 | All global and static variable names, or those matching REGEXP.")); | |
c906108c | 5063 | if (dbx_commands) |
1bedd215 AC |
5064 | add_com ("whereis", class_info, variables_info, _("\ |
5065 | All global and static variable names, or those matching REGEXP.")); | |
c906108c SS |
5066 | |
5067 | add_info ("functions", functions_info, | |
1bedd215 | 5068 | _("All function names, or those matching REGEXP.")); |
c906108c SS |
5069 | |
5070 | /* FIXME: This command has at least the following problems: | |
5071 | 1. It prints builtin types (in a very strange and confusing fashion). | |
5072 | 2. It doesn't print right, e.g. with | |
c5aa993b JM |
5073 | typedef struct foo *FOO |
5074 | type_print prints "FOO" when we want to make it (in this situation) | |
5075 | print "struct foo *". | |
c906108c SS |
5076 | I also think "ptype" or "whatis" is more likely to be useful (but if |
5077 | there is much disagreement "info types" can be fixed). */ | |
5078 | add_info ("types", types_info, | |
1bedd215 | 5079 | _("All type names, or those matching REGEXP.")); |
c906108c | 5080 | |
c906108c | 5081 | add_info ("sources", sources_info, |
1bedd215 | 5082 | _("Source files in the program.")); |
c906108c SS |
5083 | |
5084 | add_com ("rbreak", class_breakpoint, rbreak_command, | |
1bedd215 | 5085 | _("Set a breakpoint for all functions matching REGEXP.")); |
c906108c SS |
5086 | |
5087 | if (xdb_commands) | |
5088 | { | |
1bedd215 AC |
5089 | add_com ("lf", class_info, sources_info, |
5090 | _("Source files in the program")); | |
5091 | add_com ("lg", class_info, variables_info, _("\ | |
5092 | All global and static variable names, or those matching REGEXP.")); | |
c906108c SS |
5093 | } |
5094 | ||
717d2f5a JB |
5095 | add_setshow_enum_cmd ("multiple-symbols", no_class, |
5096 | multiple_symbols_modes, &multiple_symbols_mode, | |
5097 | _("\ | |
5098 | Set the debugger behavior when more than one symbol are possible matches\n\ | |
5099 | in an expression."), _("\ | |
5100 | Show how the debugger handles ambiguities in expressions."), _("\ | |
5101 | Valid values are \"ask\", \"all\", \"cancel\", and the default is \"all\"."), | |
5102 | NULL, NULL, &setlist, &showlist); | |
5103 | ||
c011a4f4 DE |
5104 | add_setshow_boolean_cmd ("basenames-may-differ", class_obscure, |
5105 | &basenames_may_differ, _("\ | |
5106 | Set whether a source file may have multiple base names."), _("\ | |
5107 | Show whether a source file may have multiple base names."), _("\ | |
5108 | (A \"base name\" is the name of a file with the directory part removed.\n\ | |
5109 | Example: The base name of \"/home/user/hello.c\" is \"hello.c\".)\n\ | |
5110 | If set, GDB will canonicalize file names (e.g., expand symlinks)\n\ | |
5111 | before comparing them. Canonicalization is an expensive operation,\n\ | |
5112 | but it allows the same file be known by more than one base name.\n\ | |
5113 | If not set (the default), all source files are assumed to have just\n\ | |
5114 | one base name, and gdb will do file name comparisons more efficiently."), | |
5115 | NULL, NULL, | |
5116 | &setlist, &showlist); | |
5117 | ||
45cfd468 DE |
5118 | add_setshow_boolean_cmd ("symtab-create", no_class, &symtab_create_debug, |
5119 | _("Set debugging of symbol table creation."), | |
5120 | _("Show debugging of symbol table creation."), _("\ | |
5121 | When enabled, debugging messages are printed when building symbol tables."), | |
5122 | NULL, | |
5123 | NULL, | |
5124 | &setdebuglist, &showdebuglist); | |
5125 | ||
ea53e89f | 5126 | observer_attach_executable_changed (symtab_observer_executable_changed); |
c906108c | 5127 | } |