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" | |
30 | #include "call-cmds.h" | |
88987551 | 31 | #include "gdb_regex.h" |
c906108c SS |
32 | #include "expression.h" |
33 | #include "language.h" | |
34 | #include "demangle.h" | |
35 | #include "inferior.h" | |
0378c332 | 36 | #include "source.h" |
a7fdf62f | 37 | #include "filenames.h" /* for FILENAME_CMP */ |
1bae87b9 | 38 | #include "objc-lang.h" |
6aecb9c2 | 39 | #include "d-lang.h" |
1f8173e6 | 40 | #include "ada-lang.h" |
a766d390 | 41 | #include "go-lang.h" |
cd6c7346 | 42 | #include "p-lang.h" |
ff013f42 | 43 | #include "addrmap.h" |
c906108c | 44 | |
2de7ced7 DJ |
45 | #include "hashtab.h" |
46 | ||
04ea0df1 | 47 | #include "gdb_obstack.h" |
fe898f56 | 48 | #include "block.h" |
de4f826b | 49 | #include "dictionary.h" |
c906108c SS |
50 | |
51 | #include <sys/types.h> | |
52 | #include <fcntl.h> | |
53 | #include "gdb_string.h" | |
54 | #include "gdb_stat.h" | |
55 | #include <ctype.h> | |
015a42b4 | 56 | #include "cp-abi.h" |
71c25dea | 57 | #include "cp-support.h" |
ea53e89f | 58 | #include "observer.h" |
94277a38 | 59 | #include "gdb_assert.h" |
3a40aaa0 | 60 | #include "solist.h" |
9a044a89 TT |
61 | #include "macrotab.h" |
62 | #include "macroscope.h" | |
c906108c | 63 | |
ccefe4c4 TT |
64 | #include "psymtab.h" |
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 | |
d092d1a2 | 78 | static void output_source_filename (const char *, int *); |
c906108c | 79 | |
f8eba3c6 | 80 | static int find_line_common (struct linetable *, int, int *, int); |
c906108c | 81 | |
3121eff0 | 82 | static struct symbol *lookup_symbol_aux (const char *name, |
3121eff0 | 83 | const struct block *block, |
176620f1 | 84 | const domain_enum domain, |
53c5240f | 85 | enum language language, |
774b6a14 | 86 | int *is_a_field_of_this); |
fba7f19c | 87 | |
e4051eeb DC |
88 | static |
89 | struct symbol *lookup_symbol_aux_local (const char *name, | |
e4051eeb | 90 | const struct block *block, |
13387711 SW |
91 | const domain_enum domain, |
92 | enum language language); | |
8155455b DC |
93 | |
94 | static | |
95 | struct symbol *lookup_symbol_aux_symtabs (int block_index, | |
96 | const char *name, | |
67ff19f7 | 97 | const domain_enum domain); |
8155455b DC |
98 | |
99 | static | |
ccefe4c4 TT |
100 | struct symbol *lookup_symbol_aux_quick (struct objfile *objfile, |
101 | int block_index, | |
102 | const char *name, | |
103 | const domain_enum domain); | |
c906108c | 104 | |
a14ed312 | 105 | static void print_msymbol_info (struct minimal_symbol *); |
c906108c | 106 | |
a14ed312 | 107 | void _initialize_symtab (void); |
c906108c SS |
108 | |
109 | /* */ | |
110 | ||
45cfd468 DE |
111 | /* When non-zero, print debugging messages related to symtab creation. */ |
112 | int symtab_create_debug = 0; | |
113 | ||
c011a4f4 DE |
114 | /* Non-zero if a file may be known by two different basenames. |
115 | This is the uncommon case, and significantly slows down gdb. | |
116 | Default set to "off" to not slow down the common case. */ | |
117 | int basenames_may_differ = 0; | |
118 | ||
717d2f5a JB |
119 | /* Allow the user to configure the debugger behavior with respect |
120 | to multiple-choice menus when more than one symbol matches during | |
121 | a symbol lookup. */ | |
122 | ||
7fc830e2 MK |
123 | const char multiple_symbols_ask[] = "ask"; |
124 | const char multiple_symbols_all[] = "all"; | |
125 | const char multiple_symbols_cancel[] = "cancel"; | |
40478521 | 126 | static const char *const multiple_symbols_modes[] = |
717d2f5a JB |
127 | { |
128 | multiple_symbols_ask, | |
129 | multiple_symbols_all, | |
130 | multiple_symbols_cancel, | |
131 | NULL | |
132 | }; | |
133 | static const char *multiple_symbols_mode = multiple_symbols_all; | |
134 | ||
135 | /* Read-only accessor to AUTO_SELECT_MODE. */ | |
136 | ||
137 | const char * | |
138 | multiple_symbols_select_mode (void) | |
139 | { | |
140 | return multiple_symbols_mode; | |
141 | } | |
142 | ||
c906108c | 143 | /* Block in which the most recently searched-for symbol was found. |
9af17804 | 144 | Might be better to make this a parameter to lookup_symbol and |
c378eb4e | 145 | value_of_this. */ |
c906108c SS |
146 | |
147 | const struct block *block_found; | |
148 | ||
4aac40c8 TT |
149 | /* See whether FILENAME matches SEARCH_NAME using the rule that we |
150 | advertise to the user. (The manual's description of linespecs | |
151 | describes what we advertise). SEARCH_LEN is the length of | |
152 | SEARCH_NAME. We assume that SEARCH_NAME is a relative path. | |
153 | Returns true if they match, false otherwise. */ | |
154 | ||
155 | int | |
156 | compare_filenames_for_search (const char *filename, const char *search_name, | |
157 | int search_len) | |
158 | { | |
159 | int len = strlen (filename); | |
4aac40c8 TT |
160 | |
161 | if (len < search_len) | |
162 | return 0; | |
163 | ||
164 | /* The tail of FILENAME must match. */ | |
165 | if (FILENAME_CMP (filename + len - search_len, search_name) != 0) | |
166 | return 0; | |
167 | ||
168 | /* Either the names must completely match, or the character | |
169 | preceding the trailing SEARCH_NAME segment of FILENAME must be a | |
170 | directory separator. */ | |
171 | return (len == search_len | |
172 | || IS_DIR_SEPARATOR (filename[len - search_len - 1]) | |
173 | || (HAS_DRIVE_SPEC (filename) | |
174 | && STRIP_DRIVE_SPEC (filename) == &filename[len - search_len])); | |
175 | } | |
176 | ||
f8eba3c6 TT |
177 | /* Check for a symtab of a specific name by searching some symtabs. |
178 | This is a helper function for callbacks of iterate_over_symtabs. | |
c906108c | 179 | |
f8eba3c6 TT |
180 | The return value, NAME, FULL_PATH, REAL_PATH, CALLBACK, and DATA |
181 | are identical to the `map_symtabs_matching_filename' method of | |
182 | quick_symbol_functions. | |
183 | ||
184 | FIRST and AFTER_LAST indicate the range of symtabs to search. | |
185 | AFTER_LAST is one past the last symtab to search; NULL means to | |
186 | search until the end of the list. */ | |
187 | ||
188 | int | |
189 | iterate_over_some_symtabs (const char *name, | |
190 | const char *full_path, | |
191 | const char *real_path, | |
192 | int (*callback) (struct symtab *symtab, | |
193 | void *data), | |
194 | void *data, | |
195 | struct symtab *first, | |
196 | struct symtab *after_last) | |
c906108c | 197 | { |
ccefe4c4 | 198 | struct symtab *s = NULL; |
c011a4f4 | 199 | const char* base_name = lbasename (name); |
4aac40c8 TT |
200 | int name_len = strlen (name); |
201 | int is_abs = IS_ABSOLUTE_PATH (name); | |
1f84b619 | 202 | |
f8eba3c6 | 203 | for (s = first; s != NULL && s != after_last; s = s->next) |
f079a2e5 | 204 | { |
4aac40c8 | 205 | /* Exact match is always ok. */ |
f8eba3c6 TT |
206 | if (FILENAME_CMP (name, s->filename) == 0) |
207 | { | |
208 | if (callback (s, data)) | |
209 | return 1; | |
210 | } | |
9af17804 | 211 | |
4aac40c8 TT |
212 | if (!is_abs && compare_filenames_for_search (s->filename, name, name_len)) |
213 | { | |
214 | if (callback (s, data)) | |
215 | return 1; | |
216 | } | |
217 | ||
c011a4f4 DE |
218 | /* Before we invoke realpath, which can get expensive when many |
219 | files are involved, do a quick comparison of the basenames. */ | |
220 | if (! basenames_may_differ | |
221 | && FILENAME_CMP (base_name, lbasename (s->filename)) != 0) | |
222 | continue; | |
223 | ||
58d370e0 TT |
224 | /* If the user gave us an absolute path, try to find the file in |
225 | this symtab and use its absolute path. */ | |
9af17804 | 226 | |
f079a2e5 JB |
227 | if (full_path != NULL) |
228 | { | |
09bcec80 | 229 | const char *fp = symtab_to_fullname (s); |
433759f7 | 230 | |
09bcec80 BR |
231 | if (fp != NULL && FILENAME_CMP (full_path, fp) == 0) |
232 | { | |
f8eba3c6 TT |
233 | if (callback (s, data)) |
234 | return 1; | |
09bcec80 | 235 | } |
4aac40c8 TT |
236 | |
237 | if (fp != NULL && !is_abs && compare_filenames_for_search (fp, name, | |
238 | name_len)) | |
239 | { | |
240 | if (callback (s, data)) | |
241 | return 1; | |
242 | } | |
f079a2e5 JB |
243 | } |
244 | ||
58d370e0 TT |
245 | if (real_path != NULL) |
246 | { | |
09bcec80 | 247 | char *fullname = symtab_to_fullname (s); |
433759f7 | 248 | |
09bcec80 BR |
249 | if (fullname != NULL) |
250 | { | |
251 | char *rp = gdb_realpath (fullname); | |
433759f7 | 252 | |
09bcec80 BR |
253 | make_cleanup (xfree, rp); |
254 | if (FILENAME_CMP (real_path, rp) == 0) | |
f8eba3c6 TT |
255 | { |
256 | if (callback (s, data)) | |
257 | return 1; | |
258 | } | |
4aac40c8 TT |
259 | |
260 | if (!is_abs && compare_filenames_for_search (rp, name, name_len)) | |
261 | { | |
262 | if (callback (s, data)) | |
263 | return 1; | |
264 | } | |
09bcec80 | 265 | } |
58d370e0 | 266 | } |
f8eba3c6 | 267 | } |
58d370e0 | 268 | |
f8eba3c6 TT |
269 | return 0; |
270 | } | |
271 | ||
272 | /* Check for a symtab of a specific name; first in symtabs, then in | |
273 | psymtabs. *If* there is no '/' in the name, a match after a '/' | |
274 | in the symtab filename will also work. | |
275 | ||
276 | Calls CALLBACK with each symtab that is found and with the supplied | |
277 | DATA. If CALLBACK returns true, the search stops. */ | |
278 | ||
279 | void | |
280 | iterate_over_symtabs (const char *name, | |
281 | int (*callback) (struct symtab *symtab, | |
282 | void *data), | |
283 | void *data) | |
284 | { | |
285 | struct symtab *s = NULL; | |
286 | struct objfile *objfile; | |
287 | char *real_path = NULL; | |
288 | char *full_path = NULL; | |
289 | struct cleanup *cleanups = make_cleanup (null_cleanup, NULL); | |
290 | ||
291 | /* Here we are interested in canonicalizing an absolute path, not | |
292 | absolutizing a relative path. */ | |
293 | if (IS_ABSOLUTE_PATH (name)) | |
294 | { | |
295 | full_path = xfullpath (name); | |
296 | make_cleanup (xfree, full_path); | |
297 | real_path = gdb_realpath (name); | |
298 | make_cleanup (xfree, real_path); | |
299 | } | |
300 | ||
301 | ALL_OBJFILES (objfile) | |
302 | { | |
303 | if (iterate_over_some_symtabs (name, full_path, real_path, callback, data, | |
304 | objfile->symtabs, NULL)) | |
305 | { | |
306 | do_cleanups (cleanups); | |
307 | return; | |
308 | } | |
309 | } | |
310 | ||
c906108c SS |
311 | /* Same search rules as above apply here, but now we look thru the |
312 | psymtabs. */ | |
313 | ||
ccefe4c4 TT |
314 | ALL_OBJFILES (objfile) |
315 | { | |
316 | if (objfile->sf | |
f8eba3c6 TT |
317 | && objfile->sf->qf->map_symtabs_matching_filename (objfile, |
318 | name, | |
319 | full_path, | |
320 | real_path, | |
321 | callback, | |
322 | data)) | |
ccefe4c4 | 323 | { |
f8eba3c6 TT |
324 | do_cleanups (cleanups); |
325 | return; | |
ccefe4c4 TT |
326 | } |
327 | } | |
c906108c | 328 | |
f8eba3c6 TT |
329 | do_cleanups (cleanups); |
330 | } | |
331 | ||
332 | /* The callback function used by lookup_symtab. */ | |
333 | ||
334 | static int | |
335 | lookup_symtab_callback (struct symtab *symtab, void *data) | |
336 | { | |
337 | struct symtab **result_ptr = data; | |
c906108c | 338 | |
f8eba3c6 TT |
339 | *result_ptr = symtab; |
340 | return 1; | |
c906108c | 341 | } |
f8eba3c6 TT |
342 | |
343 | /* A wrapper for iterate_over_symtabs that returns the first matching | |
344 | symtab, or NULL. */ | |
345 | ||
346 | struct symtab * | |
347 | lookup_symtab (const char *name) | |
348 | { | |
349 | struct symtab *result = NULL; | |
350 | ||
351 | iterate_over_symtabs (name, lookup_symtab_callback, &result); | |
352 | return result; | |
353 | } | |
354 | ||
c906108c SS |
355 | \f |
356 | /* Mangle a GDB method stub type. This actually reassembles the pieces of the | |
357 | full method name, which consist of the class name (from T), the unadorned | |
358 | method name from METHOD_ID, and the signature for the specific overload, | |
c378eb4e | 359 | specified by SIGNATURE_ID. Note that this function is g++ specific. */ |
c906108c SS |
360 | |
361 | char * | |
fba45db2 | 362 | gdb_mangle_name (struct type *type, int method_id, int signature_id) |
c906108c SS |
363 | { |
364 | int mangled_name_len; | |
365 | char *mangled_name; | |
366 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
367 | struct fn_field *method = &f[signature_id]; | |
0d5cff50 | 368 | const char *field_name = TYPE_FN_FIELDLIST_NAME (type, method_id); |
1d06ead6 | 369 | const char *physname = TYPE_FN_FIELD_PHYSNAME (f, signature_id); |
0d5cff50 | 370 | const char *newname = type_name_no_tag (type); |
c906108c SS |
371 | |
372 | /* Does the form of physname indicate that it is the full mangled name | |
373 | of a constructor (not just the args)? */ | |
374 | int is_full_physname_constructor; | |
375 | ||
376 | int is_constructor; | |
015a42b4 | 377 | int is_destructor = is_destructor_name (physname); |
c906108c SS |
378 | /* Need a new type prefix. */ |
379 | char *const_prefix = method->is_const ? "C" : ""; | |
380 | char *volatile_prefix = method->is_volatile ? "V" : ""; | |
381 | char buf[20]; | |
382 | int len = (newname == NULL ? 0 : strlen (newname)); | |
383 | ||
43630227 PS |
384 | /* Nothing to do if physname already contains a fully mangled v3 abi name |
385 | or an operator name. */ | |
386 | if ((physname[0] == '_' && physname[1] == 'Z') | |
387 | || is_operator_name (field_name)) | |
235d1e03 EZ |
388 | return xstrdup (physname); |
389 | ||
015a42b4 | 390 | is_full_physname_constructor = is_constructor_name (physname); |
c906108c | 391 | |
3e43a32a MS |
392 | is_constructor = is_full_physname_constructor |
393 | || (newname && strcmp (field_name, newname) == 0); | |
c906108c SS |
394 | |
395 | if (!is_destructor) | |
c5aa993b | 396 | is_destructor = (strncmp (physname, "__dt", 4) == 0); |
c906108c SS |
397 | |
398 | if (is_destructor || is_full_physname_constructor) | |
399 | { | |
c5aa993b JM |
400 | mangled_name = (char *) xmalloc (strlen (physname) + 1); |
401 | strcpy (mangled_name, physname); | |
c906108c SS |
402 | return mangled_name; |
403 | } | |
404 | ||
405 | if (len == 0) | |
406 | { | |
407 | sprintf (buf, "__%s%s", const_prefix, volatile_prefix); | |
408 | } | |
409 | else if (physname[0] == 't' || physname[0] == 'Q') | |
410 | { | |
411 | /* The physname for template and qualified methods already includes | |
c5aa993b | 412 | the class name. */ |
c906108c SS |
413 | sprintf (buf, "__%s%s", const_prefix, volatile_prefix); |
414 | newname = NULL; | |
415 | len = 0; | |
416 | } | |
417 | else | |
418 | { | |
419 | sprintf (buf, "__%s%s%d", const_prefix, volatile_prefix, len); | |
420 | } | |
421 | mangled_name_len = ((is_constructor ? 0 : strlen (field_name)) | |
235d1e03 | 422 | + strlen (buf) + len + strlen (physname) + 1); |
c906108c | 423 | |
433759f7 MS |
424 | mangled_name = (char *) xmalloc (mangled_name_len); |
425 | if (is_constructor) | |
426 | mangled_name[0] = '\0'; | |
427 | else | |
428 | strcpy (mangled_name, field_name); | |
429 | ||
c906108c SS |
430 | strcat (mangled_name, buf); |
431 | /* If the class doesn't have a name, i.e. newname NULL, then we just | |
432 | mangle it using 0 for the length of the class. Thus it gets mangled | |
c378eb4e | 433 | as something starting with `::' rather than `classname::'. */ |
c906108c SS |
434 | if (newname != NULL) |
435 | strcat (mangled_name, newname); | |
436 | ||
437 | strcat (mangled_name, physname); | |
438 | return (mangled_name); | |
439 | } | |
12af6855 | 440 | |
29df156d SW |
441 | /* Initialize the cplus_specific structure. 'cplus_specific' should |
442 | only be allocated for use with cplus symbols. */ | |
443 | ||
444 | static void | |
445 | symbol_init_cplus_specific (struct general_symbol_info *gsymbol, | |
446 | struct objfile *objfile) | |
447 | { | |
448 | /* A language_specific structure should not have been previously | |
449 | initialized. */ | |
450 | gdb_assert (gsymbol->language_specific.cplus_specific == NULL); | |
451 | gdb_assert (objfile != NULL); | |
452 | ||
453 | gsymbol->language_specific.cplus_specific = | |
454 | OBSTACK_ZALLOC (&objfile->objfile_obstack, struct cplus_specific); | |
455 | } | |
456 | ||
b250c185 | 457 | /* Set the demangled name of GSYMBOL to NAME. NAME must be already |
29df156d | 458 | correctly allocated. For C++ symbols a cplus_specific struct is |
c378eb4e | 459 | allocated so OBJFILE must not be NULL. If this is a non C++ symbol |
29df156d | 460 | OBJFILE can be NULL. */ |
eca864fe | 461 | |
b250c185 SW |
462 | void |
463 | symbol_set_demangled_name (struct general_symbol_info *gsymbol, | |
29df156d SW |
464 | char *name, |
465 | struct objfile *objfile) | |
b250c185 | 466 | { |
29df156d SW |
467 | if (gsymbol->language == language_cplus) |
468 | { | |
469 | if (gsymbol->language_specific.cplus_specific == NULL) | |
470 | symbol_init_cplus_specific (gsymbol, objfile); | |
471 | ||
472 | gsymbol->language_specific.cplus_specific->demangled_name = name; | |
473 | } | |
474 | else | |
475 | gsymbol->language_specific.mangled_lang.demangled_name = name; | |
b250c185 SW |
476 | } |
477 | ||
478 | /* Return the demangled name of GSYMBOL. */ | |
eca864fe | 479 | |
0d5cff50 | 480 | const char * |
b250c185 SW |
481 | symbol_get_demangled_name (const struct general_symbol_info *gsymbol) |
482 | { | |
29df156d SW |
483 | if (gsymbol->language == language_cplus) |
484 | { | |
45c58896 SW |
485 | if (gsymbol->language_specific.cplus_specific != NULL) |
486 | return gsymbol->language_specific.cplus_specific->demangled_name; | |
487 | else | |
488 | return NULL; | |
29df156d SW |
489 | } |
490 | else | |
491 | return gsymbol->language_specific.mangled_lang.demangled_name; | |
b250c185 SW |
492 | } |
493 | ||
12af6855 | 494 | \f |
89aad1f9 | 495 | /* Initialize the language dependent portion of a symbol |
c378eb4e | 496 | depending upon the language for the symbol. */ |
eca864fe | 497 | |
89aad1f9 | 498 | void |
33e5013e SW |
499 | symbol_set_language (struct general_symbol_info *gsymbol, |
500 | enum language language) | |
89aad1f9 EZ |
501 | { |
502 | gsymbol->language = language; | |
33e5013e | 503 | if (gsymbol->language == language_d |
a766d390 | 504 | || gsymbol->language == language_go |
5784d15e | 505 | || gsymbol->language == language_java |
f55ee35c JK |
506 | || gsymbol->language == language_objc |
507 | || gsymbol->language == language_fortran) | |
89aad1f9 | 508 | { |
29df156d | 509 | symbol_set_demangled_name (gsymbol, NULL, NULL); |
89aad1f9 | 510 | } |
29df156d SW |
511 | else if (gsymbol->language == language_cplus) |
512 | gsymbol->language_specific.cplus_specific = NULL; | |
89aad1f9 EZ |
513 | else |
514 | { | |
515 | memset (&gsymbol->language_specific, 0, | |
516 | sizeof (gsymbol->language_specific)); | |
517 | } | |
518 | } | |
519 | ||
2de7ced7 DJ |
520 | /* Functions to initialize a symbol's mangled name. */ |
521 | ||
04a679b8 TT |
522 | /* Objects of this type are stored in the demangled name hash table. */ |
523 | struct demangled_name_entry | |
524 | { | |
525 | char *mangled; | |
526 | char demangled[1]; | |
527 | }; | |
528 | ||
529 | /* Hash function for the demangled name hash. */ | |
eca864fe | 530 | |
04a679b8 TT |
531 | static hashval_t |
532 | hash_demangled_name_entry (const void *data) | |
533 | { | |
534 | const struct demangled_name_entry *e = data; | |
433759f7 | 535 | |
04a679b8 TT |
536 | return htab_hash_string (e->mangled); |
537 | } | |
538 | ||
539 | /* Equality function for the demangled name hash. */ | |
eca864fe | 540 | |
04a679b8 TT |
541 | static int |
542 | eq_demangled_name_entry (const void *a, const void *b) | |
543 | { | |
544 | const struct demangled_name_entry *da = a; | |
545 | const struct demangled_name_entry *db = b; | |
433759f7 | 546 | |
04a679b8 TT |
547 | return strcmp (da->mangled, db->mangled) == 0; |
548 | } | |
549 | ||
2de7ced7 DJ |
550 | /* Create the hash table used for demangled names. Each hash entry is |
551 | a pair of strings; one for the mangled name and one for the demangled | |
552 | name. The entry is hashed via just the mangled name. */ | |
553 | ||
554 | static void | |
555 | create_demangled_names_hash (struct objfile *objfile) | |
556 | { | |
557 | /* Choose 256 as the starting size of the hash table, somewhat arbitrarily. | |
9af17804 | 558 | The hash table code will round this up to the next prime number. |
2de7ced7 DJ |
559 | Choosing a much larger table size wastes memory, and saves only about |
560 | 1% in symbol reading. */ | |
561 | ||
aa2ee5f6 | 562 | objfile->demangled_names_hash = htab_create_alloc |
04a679b8 | 563 | (256, hash_demangled_name_entry, eq_demangled_name_entry, |
aa2ee5f6 | 564 | NULL, xcalloc, xfree); |
2de7ced7 | 565 | } |
12af6855 | 566 | |
2de7ced7 | 567 | /* Try to determine the demangled name for a symbol, based on the |
12af6855 JB |
568 | language of that symbol. If the language is set to language_auto, |
569 | it will attempt to find any demangling algorithm that works and | |
2de7ced7 DJ |
570 | then set the language appropriately. The returned name is allocated |
571 | by the demangler and should be xfree'd. */ | |
12af6855 | 572 | |
2de7ced7 DJ |
573 | static char * |
574 | symbol_find_demangled_name (struct general_symbol_info *gsymbol, | |
575 | const char *mangled) | |
12af6855 | 576 | { |
12af6855 JB |
577 | char *demangled = NULL; |
578 | ||
579 | if (gsymbol->language == language_unknown) | |
580 | gsymbol->language = language_auto; | |
1bae87b9 AF |
581 | |
582 | if (gsymbol->language == language_objc | |
583 | || gsymbol->language == language_auto) | |
584 | { | |
585 | demangled = | |
586 | objc_demangle (mangled, 0); | |
587 | if (demangled != NULL) | |
588 | { | |
589 | gsymbol->language = language_objc; | |
590 | return demangled; | |
591 | } | |
592 | } | |
12af6855 JB |
593 | if (gsymbol->language == language_cplus |
594 | || gsymbol->language == language_auto) | |
595 | { | |
596 | demangled = | |
3f542ed1 | 597 | cplus_demangle (mangled, DMGL_PARAMS | DMGL_ANSI); |
12af6855 | 598 | if (demangled != NULL) |
2de7ced7 DJ |
599 | { |
600 | gsymbol->language = language_cplus; | |
601 | return demangled; | |
602 | } | |
12af6855 JB |
603 | } |
604 | if (gsymbol->language == language_java) | |
605 | { | |
606 | demangled = | |
2de7ced7 | 607 | cplus_demangle (mangled, |
12af6855 JB |
608 | DMGL_PARAMS | DMGL_ANSI | DMGL_JAVA); |
609 | if (demangled != NULL) | |
2de7ced7 DJ |
610 | { |
611 | gsymbol->language = language_java; | |
612 | return demangled; | |
613 | } | |
614 | } | |
6aecb9c2 JB |
615 | if (gsymbol->language == language_d |
616 | || gsymbol->language == language_auto) | |
617 | { | |
618 | demangled = d_demangle(mangled, 0); | |
619 | if (demangled != NULL) | |
620 | { | |
621 | gsymbol->language = language_d; | |
622 | return demangled; | |
623 | } | |
624 | } | |
a766d390 DE |
625 | /* FIXME(dje): Continually adding languages here is clumsy. |
626 | Better to just call la_demangle if !auto, and if auto then call | |
627 | a utility routine that tries successive languages in turn and reports | |
628 | which one it finds. I realize the la_demangle options may be different | |
629 | for different languages but there's already a FIXME for that. */ | |
630 | if (gsymbol->language == language_go | |
631 | || gsymbol->language == language_auto) | |
632 | { | |
633 | demangled = go_demangle (mangled, 0); | |
634 | if (demangled != NULL) | |
635 | { | |
636 | gsymbol->language = language_go; | |
637 | return demangled; | |
638 | } | |
639 | } | |
640 | ||
f55ee35c JK |
641 | /* We could support `gsymbol->language == language_fortran' here to provide |
642 | module namespaces also for inferiors with only minimal symbol table (ELF | |
643 | symbols). Just the mangling standard is not standardized across compilers | |
644 | and there is no DW_AT_producer available for inferiors with only the ELF | |
645 | symbols to check the mangling kind. */ | |
2de7ced7 DJ |
646 | return NULL; |
647 | } | |
648 | ||
980cae7a | 649 | /* Set both the mangled and demangled (if any) names for GSYMBOL based |
04a679b8 TT |
650 | on LINKAGE_NAME and LEN. Ordinarily, NAME is copied onto the |
651 | objfile's obstack; but if COPY_NAME is 0 and if NAME is | |
652 | NUL-terminated, then this function assumes that NAME is already | |
653 | correctly saved (either permanently or with a lifetime tied to the | |
654 | objfile), and it will not be copied. | |
655 | ||
656 | The hash table corresponding to OBJFILE is used, and the memory | |
657 | comes from that objfile's objfile_obstack. LINKAGE_NAME is copied, | |
658 | so the pointer can be discarded after calling this function. */ | |
2de7ced7 | 659 | |
d2a52b27 DC |
660 | /* We have to be careful when dealing with Java names: when we run |
661 | into a Java minimal symbol, we don't know it's a Java symbol, so it | |
662 | gets demangled as a C++ name. This is unfortunate, but there's not | |
663 | much we can do about it: but when demangling partial symbols and | |
664 | regular symbols, we'd better not reuse the wrong demangled name. | |
665 | (See PR gdb/1039.) We solve this by putting a distinctive prefix | |
666 | on Java names when storing them in the hash table. */ | |
667 | ||
668 | /* FIXME: carlton/2003-03-13: This is an unfortunate situation. I | |
669 | don't mind the Java prefix so much: different languages have | |
670 | different demangling requirements, so it's only natural that we | |
671 | need to keep language data around in our demangling cache. But | |
672 | it's not good that the minimal symbol has the wrong demangled name. | |
673 | Unfortunately, I can't think of any easy solution to that | |
674 | problem. */ | |
675 | ||
676 | #define JAVA_PREFIX "##JAVA$$" | |
677 | #define JAVA_PREFIX_LEN 8 | |
678 | ||
2de7ced7 DJ |
679 | void |
680 | symbol_set_names (struct general_symbol_info *gsymbol, | |
04a679b8 TT |
681 | const char *linkage_name, int len, int copy_name, |
682 | struct objfile *objfile) | |
2de7ced7 | 683 | { |
04a679b8 | 684 | struct demangled_name_entry **slot; |
980cae7a DC |
685 | /* A 0-terminated copy of the linkage name. */ |
686 | const char *linkage_name_copy; | |
d2a52b27 DC |
687 | /* A copy of the linkage name that might have a special Java prefix |
688 | added to it, for use when looking names up in the hash table. */ | |
689 | const char *lookup_name; | |
690 | /* The length of lookup_name. */ | |
691 | int lookup_len; | |
04a679b8 | 692 | struct demangled_name_entry entry; |
2de7ced7 | 693 | |
b06ead72 JB |
694 | if (gsymbol->language == language_ada) |
695 | { | |
696 | /* In Ada, we do the symbol lookups using the mangled name, so | |
697 | we can save some space by not storing the demangled name. | |
698 | ||
699 | As a side note, we have also observed some overlap between | |
700 | the C++ mangling and Ada mangling, similarly to what has | |
701 | been observed with Java. Because we don't store the demangled | |
702 | name with the symbol, we don't need to use the same trick | |
703 | as Java. */ | |
04a679b8 | 704 | if (!copy_name) |
0d5cff50 | 705 | gsymbol->name = linkage_name; |
04a679b8 TT |
706 | else |
707 | { | |
0d5cff50 DE |
708 | char *name = obstack_alloc (&objfile->objfile_obstack, len + 1); |
709 | ||
710 | memcpy (name, linkage_name, len); | |
711 | name[len] = '\0'; | |
712 | gsymbol->name = name; | |
04a679b8 | 713 | } |
29df156d | 714 | symbol_set_demangled_name (gsymbol, NULL, NULL); |
b06ead72 JB |
715 | |
716 | return; | |
717 | } | |
718 | ||
04a679b8 TT |
719 | if (objfile->demangled_names_hash == NULL) |
720 | create_demangled_names_hash (objfile); | |
721 | ||
980cae7a DC |
722 | /* The stabs reader generally provides names that are not |
723 | NUL-terminated; most of the other readers don't do this, so we | |
d2a52b27 DC |
724 | can just use the given copy, unless we're in the Java case. */ |
725 | if (gsymbol->language == language_java) | |
726 | { | |
727 | char *alloc_name; | |
d2a52b27 | 728 | |
433759f7 | 729 | lookup_len = len + JAVA_PREFIX_LEN; |
d2a52b27 DC |
730 | alloc_name = alloca (lookup_len + 1); |
731 | memcpy (alloc_name, JAVA_PREFIX, JAVA_PREFIX_LEN); | |
732 | memcpy (alloc_name + JAVA_PREFIX_LEN, linkage_name, len); | |
733 | alloc_name[lookup_len] = '\0'; | |
734 | ||
735 | lookup_name = alloc_name; | |
736 | linkage_name_copy = alloc_name + JAVA_PREFIX_LEN; | |
737 | } | |
738 | else if (linkage_name[len] != '\0') | |
2de7ced7 | 739 | { |
980cae7a DC |
740 | char *alloc_name; |
741 | ||
433759f7 | 742 | lookup_len = len; |
d2a52b27 | 743 | alloc_name = alloca (lookup_len + 1); |
980cae7a | 744 | memcpy (alloc_name, linkage_name, len); |
d2a52b27 | 745 | alloc_name[lookup_len] = '\0'; |
980cae7a | 746 | |
d2a52b27 | 747 | lookup_name = alloc_name; |
980cae7a | 748 | linkage_name_copy = alloc_name; |
2de7ced7 DJ |
749 | } |
750 | else | |
980cae7a | 751 | { |
d2a52b27 DC |
752 | lookup_len = len; |
753 | lookup_name = linkage_name; | |
980cae7a DC |
754 | linkage_name_copy = linkage_name; |
755 | } | |
2de7ced7 | 756 | |
04a679b8 TT |
757 | entry.mangled = (char *) lookup_name; |
758 | slot = ((struct demangled_name_entry **) | |
759 | htab_find_slot (objfile->demangled_names_hash, | |
760 | &entry, INSERT)); | |
2de7ced7 DJ |
761 | |
762 | /* If this name is not in the hash table, add it. */ | |
a766d390 DE |
763 | if (*slot == NULL |
764 | /* A C version of the symbol may have already snuck into the table. | |
765 | This happens to, e.g., main.init (__go_init_main). Cope. */ | |
766 | || (gsymbol->language == language_go | |
767 | && (*slot)->demangled[0] == '\0')) | |
2de7ced7 | 768 | { |
980cae7a DC |
769 | char *demangled_name = symbol_find_demangled_name (gsymbol, |
770 | linkage_name_copy); | |
2de7ced7 DJ |
771 | int demangled_len = demangled_name ? strlen (demangled_name) : 0; |
772 | ||
04a679b8 TT |
773 | /* Suppose we have demangled_name==NULL, copy_name==0, and |
774 | lookup_name==linkage_name. In this case, we already have the | |
775 | mangled name saved, and we don't have a demangled name. So, | |
776 | you might think we could save a little space by not recording | |
777 | this in the hash table at all. | |
778 | ||
779 | It turns out that it is actually important to still save such | |
780 | an entry in the hash table, because storing this name gives | |
705b5767 | 781 | us better bcache hit rates for partial symbols. */ |
04a679b8 TT |
782 | if (!copy_name && lookup_name == linkage_name) |
783 | { | |
784 | *slot = obstack_alloc (&objfile->objfile_obstack, | |
785 | offsetof (struct demangled_name_entry, | |
786 | demangled) | |
787 | + demangled_len + 1); | |
788 | (*slot)->mangled = (char *) lookup_name; | |
789 | } | |
790 | else | |
791 | { | |
792 | /* If we must copy the mangled name, put it directly after | |
793 | the demangled name so we can have a single | |
794 | allocation. */ | |
795 | *slot = obstack_alloc (&objfile->objfile_obstack, | |
796 | offsetof (struct demangled_name_entry, | |
797 | demangled) | |
798 | + lookup_len + demangled_len + 2); | |
799 | (*slot)->mangled = &((*slot)->demangled[demangled_len + 1]); | |
800 | strcpy ((*slot)->mangled, lookup_name); | |
801 | } | |
802 | ||
980cae7a | 803 | if (demangled_name != NULL) |
2de7ced7 | 804 | { |
04a679b8 | 805 | strcpy ((*slot)->demangled, demangled_name); |
2de7ced7 DJ |
806 | xfree (demangled_name); |
807 | } | |
808 | else | |
04a679b8 | 809 | (*slot)->demangled[0] = '\0'; |
2de7ced7 DJ |
810 | } |
811 | ||
72dcaf82 | 812 | gsymbol->name = (*slot)->mangled + lookup_len - len; |
04a679b8 | 813 | if ((*slot)->demangled[0] != '\0') |
29df156d | 814 | symbol_set_demangled_name (gsymbol, (*slot)->demangled, objfile); |
2de7ced7 | 815 | else |
29df156d | 816 | symbol_set_demangled_name (gsymbol, NULL, objfile); |
2de7ced7 DJ |
817 | } |
818 | ||
22abf04a DC |
819 | /* Return the source code name of a symbol. In languages where |
820 | demangling is necessary, this is the demangled name. */ | |
821 | ||
0d5cff50 | 822 | const char * |
22abf04a DC |
823 | symbol_natural_name (const struct general_symbol_info *gsymbol) |
824 | { | |
9af17804 | 825 | switch (gsymbol->language) |
22abf04a | 826 | { |
1f8173e6 | 827 | case language_cplus: |
6aecb9c2 | 828 | case language_d: |
a766d390 | 829 | case language_go: |
1f8173e6 PH |
830 | case language_java: |
831 | case language_objc: | |
f55ee35c | 832 | case language_fortran: |
b250c185 SW |
833 | if (symbol_get_demangled_name (gsymbol) != NULL) |
834 | return symbol_get_demangled_name (gsymbol); | |
1f8173e6 PH |
835 | break; |
836 | case language_ada: | |
b250c185 SW |
837 | if (symbol_get_demangled_name (gsymbol) != NULL) |
838 | return symbol_get_demangled_name (gsymbol); | |
1f8173e6 PH |
839 | else |
840 | return ada_decode_symbol (gsymbol); | |
841 | break; | |
842 | default: | |
843 | break; | |
22abf04a | 844 | } |
1f8173e6 | 845 | return gsymbol->name; |
22abf04a DC |
846 | } |
847 | ||
9cc0d196 | 848 | /* Return the demangled name for a symbol based on the language for |
c378eb4e | 849 | that symbol. If no demangled name exists, return NULL. */ |
eca864fe | 850 | |
0d5cff50 | 851 | const char * |
df8a16a1 | 852 | symbol_demangled_name (const struct general_symbol_info *gsymbol) |
9cc0d196 | 853 | { |
c6e5ee5e SDJ |
854 | const char *dem_name = NULL; |
855 | ||
9af17804 | 856 | switch (gsymbol->language) |
1f8173e6 PH |
857 | { |
858 | case language_cplus: | |
6aecb9c2 | 859 | case language_d: |
a766d390 | 860 | case language_go: |
1f8173e6 PH |
861 | case language_java: |
862 | case language_objc: | |
f55ee35c | 863 | case language_fortran: |
c6e5ee5e | 864 | dem_name = symbol_get_demangled_name (gsymbol); |
1f8173e6 PH |
865 | break; |
866 | case language_ada: | |
c6e5ee5e SDJ |
867 | dem_name = symbol_get_demangled_name (gsymbol); |
868 | if (dem_name == NULL) | |
869 | dem_name = ada_decode_symbol (gsymbol); | |
1f8173e6 PH |
870 | break; |
871 | default: | |
872 | break; | |
873 | } | |
c6e5ee5e | 874 | return dem_name; |
9cc0d196 | 875 | } |
fe39c653 | 876 | |
4725b721 PH |
877 | /* Return the search name of a symbol---generally the demangled or |
878 | linkage name of the symbol, depending on how it will be searched for. | |
9af17804 | 879 | If there is no distinct demangled name, then returns the same value |
c378eb4e | 880 | (same pointer) as SYMBOL_LINKAGE_NAME. */ |
eca864fe | 881 | |
0d5cff50 | 882 | const char * |
fc062ac6 JB |
883 | symbol_search_name (const struct general_symbol_info *gsymbol) |
884 | { | |
1f8173e6 PH |
885 | if (gsymbol->language == language_ada) |
886 | return gsymbol->name; | |
887 | else | |
888 | return symbol_natural_name (gsymbol); | |
4725b721 PH |
889 | } |
890 | ||
fe39c653 | 891 | /* Initialize the structure fields to zero values. */ |
eca864fe | 892 | |
fe39c653 EZ |
893 | void |
894 | init_sal (struct symtab_and_line *sal) | |
895 | { | |
6c95b8df | 896 | sal->pspace = NULL; |
fe39c653 EZ |
897 | sal->symtab = 0; |
898 | sal->section = 0; | |
899 | sal->line = 0; | |
900 | sal->pc = 0; | |
901 | sal->end = 0; | |
ed0616c6 VP |
902 | sal->explicit_pc = 0; |
903 | sal->explicit_line = 0; | |
55aa24fb | 904 | sal->probe = NULL; |
fe39c653 | 905 | } |
c906108c SS |
906 | \f |
907 | ||
94277a38 DJ |
908 | /* Return 1 if the two sections are the same, or if they could |
909 | plausibly be copies of each other, one in an original object | |
910 | file and another in a separated debug file. */ | |
911 | ||
912 | int | |
714835d5 UW |
913 | matching_obj_sections (struct obj_section *obj_first, |
914 | struct obj_section *obj_second) | |
94277a38 | 915 | { |
714835d5 UW |
916 | asection *first = obj_first? obj_first->the_bfd_section : NULL; |
917 | asection *second = obj_second? obj_second->the_bfd_section : NULL; | |
94277a38 DJ |
918 | struct objfile *obj; |
919 | ||
920 | /* If they're the same section, then they match. */ | |
921 | if (first == second) | |
922 | return 1; | |
923 | ||
924 | /* If either is NULL, give up. */ | |
925 | if (first == NULL || second == NULL) | |
926 | return 0; | |
927 | ||
928 | /* This doesn't apply to absolute symbols. */ | |
929 | if (first->owner == NULL || second->owner == NULL) | |
930 | return 0; | |
931 | ||
932 | /* If they're in the same object file, they must be different sections. */ | |
933 | if (first->owner == second->owner) | |
934 | return 0; | |
935 | ||
936 | /* Check whether the two sections are potentially corresponding. They must | |
937 | have the same size, address, and name. We can't compare section indexes, | |
938 | which would be more reliable, because some sections may have been | |
939 | stripped. */ | |
940 | if (bfd_get_section_size (first) != bfd_get_section_size (second)) | |
941 | return 0; | |
942 | ||
818f79f6 | 943 | /* In-memory addresses may start at a different offset, relativize them. */ |
94277a38 | 944 | if (bfd_get_section_vma (first->owner, first) |
818f79f6 DJ |
945 | - bfd_get_start_address (first->owner) |
946 | != bfd_get_section_vma (second->owner, second) | |
947 | - bfd_get_start_address (second->owner)) | |
94277a38 DJ |
948 | return 0; |
949 | ||
950 | if (bfd_get_section_name (first->owner, first) == NULL | |
951 | || bfd_get_section_name (second->owner, second) == NULL | |
952 | || strcmp (bfd_get_section_name (first->owner, first), | |
953 | bfd_get_section_name (second->owner, second)) != 0) | |
954 | return 0; | |
955 | ||
956 | /* Otherwise check that they are in corresponding objfiles. */ | |
957 | ||
958 | ALL_OBJFILES (obj) | |
959 | if (obj->obfd == first->owner) | |
960 | break; | |
961 | gdb_assert (obj != NULL); | |
962 | ||
963 | if (obj->separate_debug_objfile != NULL | |
964 | && obj->separate_debug_objfile->obfd == second->owner) | |
965 | return 1; | |
966 | if (obj->separate_debug_objfile_backlink != NULL | |
967 | && obj->separate_debug_objfile_backlink->obfd == second->owner) | |
968 | return 1; | |
969 | ||
970 | return 0; | |
971 | } | |
c5aa993b | 972 | |
ccefe4c4 TT |
973 | struct symtab * |
974 | find_pc_sect_symtab_via_partial (CORE_ADDR pc, struct obj_section *section) | |
c906108c | 975 | { |
52f0bd74 | 976 | struct objfile *objfile; |
8a48e967 DJ |
977 | struct minimal_symbol *msymbol; |
978 | ||
979 | /* If we know that this is not a text address, return failure. This is | |
980 | necessary because we loop based on texthigh and textlow, which do | |
981 | not include the data ranges. */ | |
982 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); | |
983 | if (msymbol | |
712f90be TT |
984 | && (MSYMBOL_TYPE (msymbol) == mst_data |
985 | || MSYMBOL_TYPE (msymbol) == mst_bss | |
986 | || MSYMBOL_TYPE (msymbol) == mst_abs | |
987 | || MSYMBOL_TYPE (msymbol) == mst_file_data | |
988 | || MSYMBOL_TYPE (msymbol) == mst_file_bss)) | |
8a48e967 | 989 | return NULL; |
c906108c | 990 | |
ff013f42 | 991 | ALL_OBJFILES (objfile) |
ccefe4c4 TT |
992 | { |
993 | struct symtab *result = NULL; | |
433759f7 | 994 | |
ccefe4c4 TT |
995 | if (objfile->sf) |
996 | result = objfile->sf->qf->find_pc_sect_symtab (objfile, msymbol, | |
997 | pc, section, 0); | |
998 | if (result) | |
999 | return result; | |
1000 | } | |
ff013f42 JK |
1001 | |
1002 | return NULL; | |
c906108c | 1003 | } |
c906108c SS |
1004 | \f |
1005 | /* Debug symbols usually don't have section information. We need to dig that | |
1006 | out of the minimal symbols and stash that in the debug symbol. */ | |
1007 | ||
ccefe4c4 | 1008 | void |
907fc202 UW |
1009 | fixup_section (struct general_symbol_info *ginfo, |
1010 | CORE_ADDR addr, struct objfile *objfile) | |
c906108c SS |
1011 | { |
1012 | struct minimal_symbol *msym; | |
c906108c | 1013 | |
bccdca4a UW |
1014 | /* First, check whether a minimal symbol with the same name exists |
1015 | and points to the same address. The address check is required | |
1016 | e.g. on PowerPC64, where the minimal symbol for a function will | |
1017 | point to the function descriptor, while the debug symbol will | |
1018 | point to the actual function code. */ | |
907fc202 UW |
1019 | msym = lookup_minimal_symbol_by_pc_name (addr, ginfo->name, objfile); |
1020 | if (msym) | |
7a78d0ee | 1021 | { |
714835d5 | 1022 | ginfo->obj_section = SYMBOL_OBJ_SECTION (msym); |
7a78d0ee KB |
1023 | ginfo->section = SYMBOL_SECTION (msym); |
1024 | } | |
907fc202 | 1025 | else |
19e2d14b KB |
1026 | { |
1027 | /* Static, function-local variables do appear in the linker | |
1028 | (minimal) symbols, but are frequently given names that won't | |
1029 | be found via lookup_minimal_symbol(). E.g., it has been | |
1030 | observed in frv-uclinux (ELF) executables that a static, | |
1031 | function-local variable named "foo" might appear in the | |
1032 | linker symbols as "foo.6" or "foo.3". Thus, there is no | |
1033 | point in attempting to extend the lookup-by-name mechanism to | |
1034 | handle this case due to the fact that there can be multiple | |
1035 | names. | |
9af17804 | 1036 | |
19e2d14b KB |
1037 | So, instead, search the section table when lookup by name has |
1038 | failed. The ``addr'' and ``endaddr'' fields may have already | |
1039 | been relocated. If so, the relocation offset (i.e. the | |
1040 | ANOFFSET value) needs to be subtracted from these values when | |
1041 | performing the comparison. We unconditionally subtract it, | |
1042 | because, when no relocation has been performed, the ANOFFSET | |
1043 | value will simply be zero. | |
9af17804 | 1044 | |
19e2d14b KB |
1045 | The address of the symbol whose section we're fixing up HAS |
1046 | NOT BEEN adjusted (relocated) yet. It can't have been since | |
1047 | the section isn't yet known and knowing the section is | |
1048 | necessary in order to add the correct relocation value. In | |
1049 | other words, we wouldn't even be in this function (attempting | |
1050 | to compute the section) if it were already known. | |
1051 | ||
1052 | Note that it is possible to search the minimal symbols | |
1053 | (subtracting the relocation value if necessary) to find the | |
1054 | matching minimal symbol, but this is overkill and much less | |
1055 | efficient. It is not necessary to find the matching minimal | |
9af17804 DE |
1056 | symbol, only its section. |
1057 | ||
19e2d14b KB |
1058 | Note that this technique (of doing a section table search) |
1059 | can fail when unrelocated section addresses overlap. For | |
1060 | this reason, we still attempt a lookup by name prior to doing | |
1061 | a search of the section table. */ | |
9af17804 | 1062 | |
19e2d14b | 1063 | struct obj_section *s; |
433759f7 | 1064 | |
19e2d14b KB |
1065 | ALL_OBJFILE_OSECTIONS (objfile, s) |
1066 | { | |
1067 | int idx = s->the_bfd_section->index; | |
1068 | CORE_ADDR offset = ANOFFSET (objfile->section_offsets, idx); | |
1069 | ||
f1f6aadf PA |
1070 | if (obj_section_addr (s) - offset <= addr |
1071 | && addr < obj_section_endaddr (s) - offset) | |
19e2d14b | 1072 | { |
714835d5 | 1073 | ginfo->obj_section = s; |
19e2d14b KB |
1074 | ginfo->section = idx; |
1075 | return; | |
1076 | } | |
1077 | } | |
1078 | } | |
c906108c SS |
1079 | } |
1080 | ||
1081 | struct symbol * | |
fba45db2 | 1082 | fixup_symbol_section (struct symbol *sym, struct objfile *objfile) |
c906108c | 1083 | { |
907fc202 UW |
1084 | CORE_ADDR addr; |
1085 | ||
c906108c SS |
1086 | if (!sym) |
1087 | return NULL; | |
1088 | ||
714835d5 | 1089 | if (SYMBOL_OBJ_SECTION (sym)) |
c906108c SS |
1090 | return sym; |
1091 | ||
907fc202 UW |
1092 | /* We either have an OBJFILE, or we can get at it from the sym's |
1093 | symtab. Anything else is a bug. */ | |
1094 | gdb_assert (objfile || SYMBOL_SYMTAB (sym)); | |
1095 | ||
1096 | if (objfile == NULL) | |
1097 | objfile = SYMBOL_SYMTAB (sym)->objfile; | |
1098 | ||
1099 | /* We should have an objfile by now. */ | |
1100 | gdb_assert (objfile); | |
1101 | ||
1102 | switch (SYMBOL_CLASS (sym)) | |
1103 | { | |
1104 | case LOC_STATIC: | |
1105 | case LOC_LABEL: | |
907fc202 UW |
1106 | addr = SYMBOL_VALUE_ADDRESS (sym); |
1107 | break; | |
1108 | case LOC_BLOCK: | |
1109 | addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); | |
1110 | break; | |
1111 | ||
1112 | default: | |
1113 | /* Nothing else will be listed in the minsyms -- no use looking | |
1114 | it up. */ | |
1115 | return sym; | |
1116 | } | |
1117 | ||
1118 | fixup_section (&sym->ginfo, addr, objfile); | |
c906108c SS |
1119 | |
1120 | return sym; | |
1121 | } | |
1122 | ||
f8eba3c6 TT |
1123 | /* Compute the demangled form of NAME as used by the various symbol |
1124 | lookup functions. The result is stored in *RESULT_NAME. Returns a | |
1125 | cleanup which can be used to clean up the result. | |
1126 | ||
1127 | For Ada, this function just sets *RESULT_NAME to NAME, unmodified. | |
1128 | Normally, Ada symbol lookups are performed using the encoded name | |
1129 | rather than the demangled name, and so it might seem to make sense | |
1130 | for this function to return an encoded version of NAME. | |
1131 | Unfortunately, we cannot do this, because this function is used in | |
1132 | circumstances where it is not appropriate to try to encode NAME. | |
1133 | For instance, when displaying the frame info, we demangle the name | |
1134 | of each parameter, and then perform a symbol lookup inside our | |
1135 | function using that demangled name. In Ada, certain functions | |
1136 | have internally-generated parameters whose name contain uppercase | |
1137 | characters. Encoding those name would result in those uppercase | |
1138 | characters to become lowercase, and thus cause the symbol lookup | |
1139 | to fail. */ | |
c906108c | 1140 | |
f8eba3c6 TT |
1141 | struct cleanup * |
1142 | demangle_for_lookup (const char *name, enum language lang, | |
1143 | const char **result_name) | |
c906108c | 1144 | { |
729051e6 DJ |
1145 | char *demangled_name = NULL; |
1146 | const char *modified_name = NULL; | |
9ee6bb93 | 1147 | struct cleanup *cleanup = make_cleanup (null_cleanup, 0); |
c906108c | 1148 | |
729051e6 DJ |
1149 | modified_name = name; |
1150 | ||
a766d390 | 1151 | /* If we are using C++, D, Go, or Java, demangle the name before doing a |
c378eb4e | 1152 | lookup, so we can always binary search. */ |
53c5240f | 1153 | if (lang == language_cplus) |
729051e6 DJ |
1154 | { |
1155 | demangled_name = cplus_demangle (name, DMGL_ANSI | DMGL_PARAMS); | |
1156 | if (demangled_name) | |
1157 | { | |
729051e6 | 1158 | modified_name = demangled_name; |
9ee6bb93 | 1159 | make_cleanup (xfree, demangled_name); |
729051e6 | 1160 | } |
71c25dea TT |
1161 | else |
1162 | { | |
1163 | /* If we were given a non-mangled name, canonicalize it | |
1164 | according to the language (so far only for C++). */ | |
1165 | demangled_name = cp_canonicalize_string (name); | |
1166 | if (demangled_name) | |
1167 | { | |
1168 | modified_name = demangled_name; | |
1169 | make_cleanup (xfree, demangled_name); | |
1170 | } | |
1171 | } | |
729051e6 | 1172 | } |
53c5240f | 1173 | else if (lang == language_java) |
987504bb | 1174 | { |
9af17804 | 1175 | demangled_name = cplus_demangle (name, |
987504bb JJ |
1176 | DMGL_ANSI | DMGL_PARAMS | DMGL_JAVA); |
1177 | if (demangled_name) | |
1178 | { | |
987504bb | 1179 | modified_name = demangled_name; |
9ee6bb93 | 1180 | make_cleanup (xfree, demangled_name); |
987504bb JJ |
1181 | } |
1182 | } | |
6aecb9c2 JB |
1183 | else if (lang == language_d) |
1184 | { | |
1185 | demangled_name = d_demangle (name, 0); | |
1186 | if (demangled_name) | |
1187 | { | |
1188 | modified_name = demangled_name; | |
1189 | make_cleanup (xfree, demangled_name); | |
1190 | } | |
1191 | } | |
a766d390 DE |
1192 | else if (lang == language_go) |
1193 | { | |
1194 | demangled_name = go_demangle (name, 0); | |
1195 | if (demangled_name) | |
1196 | { | |
1197 | modified_name = demangled_name; | |
1198 | make_cleanup (xfree, demangled_name); | |
1199 | } | |
1200 | } | |
729051e6 | 1201 | |
f8eba3c6 TT |
1202 | *result_name = modified_name; |
1203 | return cleanup; | |
1204 | } | |
1205 | ||
1206 | /* Find the definition for a specified symbol name NAME | |
1207 | in domain DOMAIN, visible from lexical block BLOCK. | |
1208 | Returns the struct symbol pointer, or zero if no symbol is found. | |
1209 | C++: if IS_A_FIELD_OF_THIS is nonzero on entry, check to see if | |
1210 | NAME is a field of the current implied argument `this'. If so set | |
1211 | *IS_A_FIELD_OF_THIS to 1, otherwise set it to zero. | |
1212 | BLOCK_FOUND is set to the block in which NAME is found (in the case of | |
1213 | a field of `this', value_of_this sets BLOCK_FOUND to the proper value.) */ | |
1214 | ||
7e082072 DE |
1215 | /* This function (or rather its subordinates) have a bunch of loops and |
1216 | it would seem to be attractive to put in some QUIT's (though I'm not really | |
1217 | sure whether it can run long enough to be really important). But there | |
f8eba3c6 | 1218 | are a few calls for which it would appear to be bad news to quit |
7e082072 | 1219 | out of here: e.g., find_proc_desc in alpha-mdebug-tdep.c. (Note |
f8eba3c6 TT |
1220 | that there is C++ code below which can error(), but that probably |
1221 | doesn't affect these calls since they are looking for a known | |
1222 | variable and thus can probably assume it will never hit the C++ | |
1223 | code). */ | |
1224 | ||
1225 | struct symbol * | |
1226 | lookup_symbol_in_language (const char *name, const struct block *block, | |
1227 | const domain_enum domain, enum language lang, | |
1228 | int *is_a_field_of_this) | |
1229 | { | |
1230 | const char *modified_name; | |
1231 | struct symbol *returnval; | |
1232 | struct cleanup *cleanup = demangle_for_lookup (name, lang, &modified_name); | |
1233 | ||
94af9270 | 1234 | returnval = lookup_symbol_aux (modified_name, block, domain, lang, |
774b6a14 | 1235 | is_a_field_of_this); |
9ee6bb93 | 1236 | do_cleanups (cleanup); |
fba7f19c | 1237 | |
9af17804 | 1238 | return returnval; |
fba7f19c EZ |
1239 | } |
1240 | ||
53c5240f PA |
1241 | /* Behave like lookup_symbol_in_language, but performed with the |
1242 | current language. */ | |
1243 | ||
1244 | struct symbol * | |
1245 | lookup_symbol (const char *name, const struct block *block, | |
2570f2b7 | 1246 | domain_enum domain, int *is_a_field_of_this) |
53c5240f PA |
1247 | { |
1248 | return lookup_symbol_in_language (name, block, domain, | |
1249 | current_language->la_language, | |
2570f2b7 | 1250 | is_a_field_of_this); |
53c5240f PA |
1251 | } |
1252 | ||
66a17cb6 TT |
1253 | /* Look up the `this' symbol for LANG in BLOCK. Return the symbol if |
1254 | found, or NULL if not found. */ | |
1255 | ||
1256 | struct symbol * | |
1257 | lookup_language_this (const struct language_defn *lang, | |
1258 | const struct block *block) | |
1259 | { | |
1260 | if (lang->la_name_of_this == NULL || block == NULL) | |
1261 | return NULL; | |
1262 | ||
03de6823 | 1263 | while (block) |
66a17cb6 TT |
1264 | { |
1265 | struct symbol *sym; | |
1266 | ||
1267 | sym = lookup_block_symbol (block, lang->la_name_of_this, VAR_DOMAIN); | |
1268 | if (sym != NULL) | |
f149aabd TT |
1269 | { |
1270 | block_found = block; | |
1271 | return sym; | |
1272 | } | |
66a17cb6 | 1273 | if (BLOCK_FUNCTION (block)) |
03de6823 | 1274 | break; |
66a17cb6 TT |
1275 | block = BLOCK_SUPERBLOCK (block); |
1276 | } | |
03de6823 TT |
1277 | |
1278 | return NULL; | |
66a17cb6 TT |
1279 | } |
1280 | ||
53c5240f | 1281 | /* Behave like lookup_symbol except that NAME is the natural name |
7e082072 | 1282 | (e.g., demangled name) of the symbol that we're looking for. */ |
5ad1c190 | 1283 | |
fba7f19c | 1284 | static struct symbol * |
94af9270 KS |
1285 | lookup_symbol_aux (const char *name, const struct block *block, |
1286 | const domain_enum domain, enum language language, | |
774b6a14 | 1287 | int *is_a_field_of_this) |
fba7f19c | 1288 | { |
8155455b | 1289 | struct symbol *sym; |
53c5240f | 1290 | const struct language_defn *langdef; |
406bc4de | 1291 | |
9a146a11 EZ |
1292 | /* Make sure we do something sensible with is_a_field_of_this, since |
1293 | the callers that set this parameter to some non-null value will | |
1294 | certainly use it later and expect it to be either 0 or 1. | |
1295 | If we don't set it, the contents of is_a_field_of_this are | |
1296 | undefined. */ | |
1297 | if (is_a_field_of_this != NULL) | |
1298 | *is_a_field_of_this = 0; | |
1299 | ||
e4051eeb DC |
1300 | /* Search specified block and its superiors. Don't search |
1301 | STATIC_BLOCK or GLOBAL_BLOCK. */ | |
c906108c | 1302 | |
13387711 | 1303 | sym = lookup_symbol_aux_local (name, block, domain, language); |
8155455b DC |
1304 | if (sym != NULL) |
1305 | return sym; | |
c906108c | 1306 | |
53c5240f | 1307 | /* If requested to do so by the caller and if appropriate for LANGUAGE, |
13387711 | 1308 | check to see if NAME is a field of `this'. */ |
53c5240f PA |
1309 | |
1310 | langdef = language_def (language); | |
5f9a71c3 | 1311 | |
66a17cb6 | 1312 | if (is_a_field_of_this != NULL) |
c906108c | 1313 | { |
66a17cb6 | 1314 | struct symbol *sym = lookup_language_this (langdef, block); |
2b2d9e11 | 1315 | |
2b2d9e11 | 1316 | if (sym) |
c906108c | 1317 | { |
2b2d9e11 | 1318 | struct type *t = sym->type; |
9af17804 | 1319 | |
2b2d9e11 VP |
1320 | /* I'm not really sure that type of this can ever |
1321 | be typedefed; just be safe. */ | |
1322 | CHECK_TYPEDEF (t); | |
1323 | if (TYPE_CODE (t) == TYPE_CODE_PTR | |
1324 | || TYPE_CODE (t) == TYPE_CODE_REF) | |
1325 | t = TYPE_TARGET_TYPE (t); | |
9af17804 | 1326 | |
2b2d9e11 VP |
1327 | if (TYPE_CODE (t) != TYPE_CODE_STRUCT |
1328 | && TYPE_CODE (t) != TYPE_CODE_UNION) | |
9af17804 | 1329 | error (_("Internal error: `%s' is not an aggregate"), |
2b2d9e11 | 1330 | langdef->la_name_of_this); |
9af17804 | 1331 | |
2b2d9e11 VP |
1332 | if (check_field (t, name)) |
1333 | { | |
1334 | *is_a_field_of_this = 1; | |
2b2d9e11 VP |
1335 | return NULL; |
1336 | } | |
c906108c SS |
1337 | } |
1338 | } | |
1339 | ||
53c5240f | 1340 | /* Now do whatever is appropriate for LANGUAGE to look |
774b6a14 | 1341 | up static and global variables. */ |
c906108c | 1342 | |
774b6a14 TT |
1343 | sym = langdef->la_lookup_symbol_nonlocal (name, block, domain); |
1344 | if (sym != NULL) | |
1345 | return sym; | |
c906108c | 1346 | |
774b6a14 TT |
1347 | /* Now search all static file-level symbols. Not strictly correct, |
1348 | but more useful than an error. */ | |
41f62f39 JK |
1349 | |
1350 | return lookup_static_symbol_aux (name, domain); | |
1351 | } | |
1352 | ||
1353 | /* Search all static file-level symbols for NAME from DOMAIN. Do the symtabs | |
1354 | first, then check the psymtabs. If a psymtab indicates the existence of the | |
1355 | desired name as a file-level static, then do psymtab-to-symtab conversion on | |
c378eb4e | 1356 | the fly and return the found symbol. */ |
41f62f39 JK |
1357 | |
1358 | struct symbol * | |
1359 | lookup_static_symbol_aux (const char *name, const domain_enum domain) | |
1360 | { | |
1361 | struct objfile *objfile; | |
1362 | struct symbol *sym; | |
c906108c | 1363 | |
67ff19f7 | 1364 | sym = lookup_symbol_aux_symtabs (STATIC_BLOCK, name, domain); |
8155455b DC |
1365 | if (sym != NULL) |
1366 | return sym; | |
9af17804 | 1367 | |
ccefe4c4 TT |
1368 | ALL_OBJFILES (objfile) |
1369 | { | |
1370 | sym = lookup_symbol_aux_quick (objfile, STATIC_BLOCK, name, domain); | |
1371 | if (sym != NULL) | |
1372 | return sym; | |
1373 | } | |
c906108c | 1374 | |
8155455b | 1375 | return NULL; |
c906108c | 1376 | } |
8155455b | 1377 | |
e4051eeb | 1378 | /* Check to see if the symbol is defined in BLOCK or its superiors. |
89a9d1b1 | 1379 | Don't search STATIC_BLOCK or GLOBAL_BLOCK. */ |
8155455b DC |
1380 | |
1381 | static struct symbol * | |
94af9270 | 1382 | lookup_symbol_aux_local (const char *name, const struct block *block, |
13387711 SW |
1383 | const domain_enum domain, |
1384 | enum language language) | |
8155455b DC |
1385 | { |
1386 | struct symbol *sym; | |
89a9d1b1 | 1387 | const struct block *static_block = block_static_block (block); |
13387711 SW |
1388 | const char *scope = block_scope (block); |
1389 | ||
e4051eeb DC |
1390 | /* Check if either no block is specified or it's a global block. */ |
1391 | ||
89a9d1b1 DC |
1392 | if (static_block == NULL) |
1393 | return NULL; | |
e4051eeb | 1394 | |
89a9d1b1 | 1395 | while (block != static_block) |
f61e8913 | 1396 | { |
94af9270 | 1397 | sym = lookup_symbol_aux_block (name, block, domain); |
f61e8913 DC |
1398 | if (sym != NULL) |
1399 | return sym; | |
edb3359d | 1400 | |
f55ee35c | 1401 | if (language == language_cplus || language == language_fortran) |
13387711 | 1402 | { |
34eaf542 TT |
1403 | sym = cp_lookup_symbol_imports_or_template (scope, name, block, |
1404 | domain); | |
13387711 SW |
1405 | if (sym != NULL) |
1406 | return sym; | |
1407 | } | |
1408 | ||
edb3359d DJ |
1409 | if (BLOCK_FUNCTION (block) != NULL && block_inlined_p (block)) |
1410 | break; | |
f61e8913 DC |
1411 | block = BLOCK_SUPERBLOCK (block); |
1412 | } | |
1413 | ||
edb3359d | 1414 | /* We've reached the edge of the function without finding a result. */ |
e4051eeb | 1415 | |
f61e8913 DC |
1416 | return NULL; |
1417 | } | |
1418 | ||
3a40aaa0 UW |
1419 | /* Look up OBJFILE to BLOCK. */ |
1420 | ||
c0201579 | 1421 | struct objfile * |
3a40aaa0 UW |
1422 | lookup_objfile_from_block (const struct block *block) |
1423 | { | |
1424 | struct objfile *obj; | |
1425 | struct symtab *s; | |
1426 | ||
1427 | if (block == NULL) | |
1428 | return NULL; | |
1429 | ||
1430 | block = block_global_block (block); | |
1431 | /* Go through SYMTABS. */ | |
1432 | ALL_SYMTABS (obj, s) | |
1433 | if (block == BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK)) | |
61f0d762 JK |
1434 | { |
1435 | if (obj->separate_debug_objfile_backlink) | |
1436 | obj = obj->separate_debug_objfile_backlink; | |
1437 | ||
1438 | return obj; | |
1439 | } | |
3a40aaa0 UW |
1440 | |
1441 | return NULL; | |
1442 | } | |
1443 | ||
6c9353d3 PA |
1444 | /* Look up a symbol in a block; if found, fixup the symbol, and set |
1445 | block_found appropriately. */ | |
f61e8913 | 1446 | |
5f9a71c3 | 1447 | struct symbol * |
94af9270 | 1448 | lookup_symbol_aux_block (const char *name, const struct block *block, |
21b556f4 | 1449 | const domain_enum domain) |
f61e8913 DC |
1450 | { |
1451 | struct symbol *sym; | |
f61e8913 | 1452 | |
94af9270 | 1453 | sym = lookup_block_symbol (block, name, domain); |
f61e8913 | 1454 | if (sym) |
8155455b | 1455 | { |
f61e8913 | 1456 | block_found = block; |
21b556f4 | 1457 | return fixup_symbol_section (sym, NULL); |
8155455b DC |
1458 | } |
1459 | ||
1460 | return NULL; | |
1461 | } | |
1462 | ||
3a40aaa0 UW |
1463 | /* Check all global symbols in OBJFILE in symtabs and |
1464 | psymtabs. */ | |
1465 | ||
1466 | struct symbol * | |
15d123c9 | 1467 | lookup_global_symbol_from_objfile (const struct objfile *main_objfile, |
3a40aaa0 | 1468 | const char *name, |
21b556f4 | 1469 | const domain_enum domain) |
3a40aaa0 | 1470 | { |
15d123c9 | 1471 | const struct objfile *objfile; |
3a40aaa0 UW |
1472 | struct symbol *sym; |
1473 | struct blockvector *bv; | |
1474 | const struct block *block; | |
1475 | struct symtab *s; | |
3a40aaa0 | 1476 | |
15d123c9 TG |
1477 | for (objfile = main_objfile; |
1478 | objfile; | |
1479 | objfile = objfile_separate_debug_iterate (main_objfile, objfile)) | |
1480 | { | |
1481 | /* Go through symtabs. */ | |
78e5175a DE |
1482 | ALL_OBJFILE_PRIMARY_SYMTABS (objfile, s) |
1483 | { | |
1484 | bv = BLOCKVECTOR (s); | |
1485 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
1486 | sym = lookup_block_symbol (block, name, domain); | |
1487 | if (sym) | |
1488 | { | |
1489 | block_found = block; | |
1490 | return fixup_symbol_section (sym, (struct objfile *)objfile); | |
1491 | } | |
1492 | } | |
15d123c9 | 1493 | |
ccefe4c4 TT |
1494 | sym = lookup_symbol_aux_quick ((struct objfile *) objfile, GLOBAL_BLOCK, |
1495 | name, domain); | |
1496 | if (sym) | |
1497 | return sym; | |
15d123c9 | 1498 | } |
56e3f43c | 1499 | |
3a40aaa0 UW |
1500 | return NULL; |
1501 | } | |
1502 | ||
19630284 JB |
1503 | /* Check to see if the symbol is defined in one of the OBJFILE's |
1504 | symtabs. BLOCK_INDEX should be either GLOBAL_BLOCK or STATIC_BLOCK, | |
8155455b DC |
1505 | depending on whether or not we want to search global symbols or |
1506 | static symbols. */ | |
1507 | ||
19630284 JB |
1508 | static struct symbol * |
1509 | lookup_symbol_aux_objfile (struct objfile *objfile, int block_index, | |
1510 | const char *name, const domain_enum domain) | |
1511 | { | |
1512 | struct symbol *sym = NULL; | |
1513 | struct blockvector *bv; | |
1514 | const struct block *block; | |
1515 | struct symtab *s; | |
1516 | ||
1517 | if (objfile->sf) | |
1518 | objfile->sf->qf->pre_expand_symtabs_matching (objfile, block_index, | |
1519 | name, domain); | |
1520 | ||
a743abeb DE |
1521 | ALL_OBJFILE_PRIMARY_SYMTABS (objfile, s) |
1522 | { | |
1523 | bv = BLOCKVECTOR (s); | |
1524 | block = BLOCKVECTOR_BLOCK (bv, block_index); | |
1525 | sym = lookup_block_symbol (block, name, domain); | |
1526 | if (sym) | |
1527 | { | |
1528 | block_found = block; | |
1529 | return fixup_symbol_section (sym, objfile); | |
1530 | } | |
1531 | } | |
19630284 JB |
1532 | |
1533 | return NULL; | |
1534 | } | |
1535 | ||
1536 | /* Same as lookup_symbol_aux_objfile, except that it searches all | |
1537 | objfiles. Return the first match found. */ | |
1538 | ||
8155455b | 1539 | static struct symbol * |
67ff19f7 JB |
1540 | lookup_symbol_aux_symtabs (int block_index, const char *name, |
1541 | const domain_enum domain) | |
8155455b | 1542 | { |
67ff19f7 JB |
1543 | struct symbol *sym; |
1544 | struct objfile *objfile; | |
8155455b | 1545 | |
67ff19f7 JB |
1546 | ALL_OBJFILES (objfile) |
1547 | { | |
19630284 JB |
1548 | sym = lookup_symbol_aux_objfile (objfile, block_index, name, domain); |
1549 | if (sym) | |
1550 | return sym; | |
8155455b DC |
1551 | } |
1552 | ||
1553 | return NULL; | |
1554 | } | |
1555 | ||
422d65e7 DE |
1556 | /* Wrapper around lookup_symbol_aux_objfile for search_symbols. |
1557 | Look up LINKAGE_NAME in DOMAIN in the global and static blocks of OBJFILE | |
1558 | and all related objfiles. */ | |
1559 | ||
1560 | static struct symbol * | |
1561 | lookup_symbol_in_objfile_from_linkage_name (struct objfile *objfile, | |
1562 | const char *linkage_name, | |
1563 | domain_enum domain) | |
1564 | { | |
1565 | enum language lang = current_language->la_language; | |
1566 | const char *modified_name; | |
1567 | struct cleanup *cleanup = demangle_for_lookup (linkage_name, lang, | |
1568 | &modified_name); | |
1569 | struct objfile *main_objfile, *cur_objfile; | |
1570 | ||
1571 | if (objfile->separate_debug_objfile_backlink) | |
1572 | main_objfile = objfile->separate_debug_objfile_backlink; | |
1573 | else | |
1574 | main_objfile = objfile; | |
1575 | ||
1576 | for (cur_objfile = main_objfile; | |
1577 | cur_objfile; | |
1578 | cur_objfile = objfile_separate_debug_iterate (main_objfile, cur_objfile)) | |
1579 | { | |
1580 | struct symbol *sym; | |
1581 | ||
1582 | sym = lookup_symbol_aux_objfile (cur_objfile, GLOBAL_BLOCK, | |
1583 | modified_name, domain); | |
1584 | if (sym == NULL) | |
1585 | sym = lookup_symbol_aux_objfile (cur_objfile, STATIC_BLOCK, | |
1586 | modified_name, domain); | |
1587 | if (sym != NULL) | |
1588 | { | |
1589 | do_cleanups (cleanup); | |
1590 | return sym; | |
1591 | } | |
1592 | } | |
1593 | ||
1594 | do_cleanups (cleanup); | |
1595 | return NULL; | |
1596 | } | |
1597 | ||
ccefe4c4 TT |
1598 | /* A helper function for lookup_symbol_aux that interfaces with the |
1599 | "quick" symbol table functions. */ | |
8155455b DC |
1600 | |
1601 | static struct symbol * | |
ccefe4c4 TT |
1602 | lookup_symbol_aux_quick (struct objfile *objfile, int kind, |
1603 | const char *name, const domain_enum domain) | |
8155455b | 1604 | { |
ccefe4c4 | 1605 | struct symtab *symtab; |
8155455b DC |
1606 | struct blockvector *bv; |
1607 | const struct block *block; | |
ccefe4c4 | 1608 | struct symbol *sym; |
8155455b | 1609 | |
ccefe4c4 TT |
1610 | if (!objfile->sf) |
1611 | return NULL; | |
1612 | symtab = objfile->sf->qf->lookup_symbol (objfile, kind, name, domain); | |
1613 | if (!symtab) | |
1614 | return NULL; | |
8155455b | 1615 | |
ccefe4c4 TT |
1616 | bv = BLOCKVECTOR (symtab); |
1617 | block = BLOCKVECTOR_BLOCK (bv, kind); | |
1618 | sym = lookup_block_symbol (block, name, domain); | |
1619 | if (!sym) | |
1620 | { | |
1621 | /* This shouldn't be necessary, but as a last resort try | |
1622 | looking in the statics even though the psymtab claimed | |
c378eb4e | 1623 | the symbol was global, or vice-versa. It's possible |
ccefe4c4 TT |
1624 | that the psymtab gets it wrong in some cases. */ |
1625 | ||
1626 | /* FIXME: carlton/2002-09-30: Should we really do that? | |
1627 | If that happens, isn't it likely to be a GDB error, in | |
1628 | which case we should fix the GDB error rather than | |
1629 | silently dealing with it here? So I'd vote for | |
1630 | removing the check for the symbol in the other | |
1631 | block. */ | |
1632 | block = BLOCKVECTOR_BLOCK (bv, | |
1633 | kind == GLOBAL_BLOCK ? | |
1634 | STATIC_BLOCK : GLOBAL_BLOCK); | |
1635 | sym = lookup_block_symbol (block, name, domain); | |
1636 | if (!sym) | |
3e43a32a MS |
1637 | error (_("\ |
1638 | Internal: %s symbol `%s' found in %s psymtab but not in symtab.\n\ | |
1639 | %s may be an inlined function, or may be a template function\n\ | |
1640 | (if a template, try specifying an instantiation: %s<type>)."), | |
ccefe4c4 TT |
1641 | kind == GLOBAL_BLOCK ? "global" : "static", |
1642 | name, symtab->filename, name, name); | |
1643 | } | |
1644 | return fixup_symbol_section (sym, objfile); | |
8155455b DC |
1645 | } |
1646 | ||
5f9a71c3 DC |
1647 | /* A default version of lookup_symbol_nonlocal for use by languages |
1648 | that can't think of anything better to do. This implements the C | |
1649 | lookup rules. */ | |
1650 | ||
1651 | struct symbol * | |
1652 | basic_lookup_symbol_nonlocal (const char *name, | |
5f9a71c3 | 1653 | const struct block *block, |
21b556f4 | 1654 | const domain_enum domain) |
5f9a71c3 DC |
1655 | { |
1656 | struct symbol *sym; | |
1657 | ||
1658 | /* NOTE: carlton/2003-05-19: The comments below were written when | |
1659 | this (or what turned into this) was part of lookup_symbol_aux; | |
1660 | I'm much less worried about these questions now, since these | |
1661 | decisions have turned out well, but I leave these comments here | |
1662 | for posterity. */ | |
1663 | ||
1664 | /* NOTE: carlton/2002-12-05: There is a question as to whether or | |
1665 | not it would be appropriate to search the current global block | |
1666 | here as well. (That's what this code used to do before the | |
1667 | is_a_field_of_this check was moved up.) On the one hand, it's | |
1668 | redundant with the lookup_symbol_aux_symtabs search that happens | |
1669 | next. On the other hand, if decode_line_1 is passed an argument | |
1670 | like filename:var, then the user presumably wants 'var' to be | |
1671 | searched for in filename. On the third hand, there shouldn't be | |
1672 | multiple global variables all of which are named 'var', and it's | |
1673 | not like decode_line_1 has ever restricted its search to only | |
1674 | global variables in a single filename. All in all, only | |
1675 | searching the static block here seems best: it's correct and it's | |
1676 | cleanest. */ | |
1677 | ||
1678 | /* NOTE: carlton/2002-12-05: There's also a possible performance | |
1679 | issue here: if you usually search for global symbols in the | |
1680 | current file, then it would be slightly better to search the | |
1681 | current global block before searching all the symtabs. But there | |
1682 | are other factors that have a much greater effect on performance | |
1683 | than that one, so I don't think we should worry about that for | |
1684 | now. */ | |
1685 | ||
94af9270 | 1686 | sym = lookup_symbol_static (name, block, domain); |
5f9a71c3 DC |
1687 | if (sym != NULL) |
1688 | return sym; | |
1689 | ||
94af9270 | 1690 | return lookup_symbol_global (name, block, domain); |
5f9a71c3 DC |
1691 | } |
1692 | ||
1693 | /* Lookup a symbol in the static block associated to BLOCK, if there | |
1694 | is one; do nothing if BLOCK is NULL or a global block. */ | |
1695 | ||
1696 | struct symbol * | |
1697 | lookup_symbol_static (const char *name, | |
5f9a71c3 | 1698 | const struct block *block, |
21b556f4 | 1699 | const domain_enum domain) |
5f9a71c3 DC |
1700 | { |
1701 | const struct block *static_block = block_static_block (block); | |
1702 | ||
1703 | if (static_block != NULL) | |
94af9270 | 1704 | return lookup_symbol_aux_block (name, static_block, domain); |
5f9a71c3 DC |
1705 | else |
1706 | return NULL; | |
1707 | } | |
1708 | ||
19630284 JB |
1709 | /* Private data to be used with lookup_symbol_global_iterator_cb. */ |
1710 | ||
1711 | struct global_sym_lookup_data | |
1712 | { | |
1713 | /* The name of the symbol we are searching for. */ | |
1714 | const char *name; | |
1715 | ||
1716 | /* The domain to use for our search. */ | |
1717 | domain_enum domain; | |
1718 | ||
1719 | /* The field where the callback should store the symbol if found. | |
1720 | It should be initialized to NULL before the search is started. */ | |
1721 | struct symbol *result; | |
1722 | }; | |
1723 | ||
1724 | /* A callback function for gdbarch_iterate_over_objfiles_in_search_order. | |
1725 | It searches by name for a symbol in the GLOBAL_BLOCK of the given | |
1726 | OBJFILE. The arguments for the search are passed via CB_DATA, | |
1727 | which in reality is a pointer to struct global_sym_lookup_data. */ | |
1728 | ||
1729 | static int | |
1730 | lookup_symbol_global_iterator_cb (struct objfile *objfile, | |
1731 | void *cb_data) | |
1732 | { | |
1733 | struct global_sym_lookup_data *data = | |
1734 | (struct global_sym_lookup_data *) cb_data; | |
1735 | ||
1736 | gdb_assert (data->result == NULL); | |
1737 | ||
1738 | data->result = lookup_symbol_aux_objfile (objfile, GLOBAL_BLOCK, | |
1739 | data->name, data->domain); | |
1740 | if (data->result == NULL) | |
1741 | data->result = lookup_symbol_aux_quick (objfile, GLOBAL_BLOCK, | |
1742 | data->name, data->domain); | |
1743 | ||
1744 | /* If we found a match, tell the iterator to stop. Otherwise, | |
1745 | keep going. */ | |
1746 | return (data->result != NULL); | |
1747 | } | |
1748 | ||
5f9a71c3 DC |
1749 | /* Lookup a symbol in all files' global blocks (searching psymtabs if |
1750 | necessary). */ | |
1751 | ||
1752 | struct symbol * | |
1753 | lookup_symbol_global (const char *name, | |
3a40aaa0 | 1754 | const struct block *block, |
21b556f4 | 1755 | const domain_enum domain) |
5f9a71c3 | 1756 | { |
3a40aaa0 UW |
1757 | struct symbol *sym = NULL; |
1758 | struct objfile *objfile = NULL; | |
19630284 | 1759 | struct global_sym_lookup_data lookup_data; |
3a40aaa0 UW |
1760 | |
1761 | /* Call library-specific lookup procedure. */ | |
67ff19f7 JB |
1762 | objfile = lookup_objfile_from_block (block); |
1763 | if (objfile != NULL) | |
1764 | sym = solib_global_lookup (objfile, name, domain); | |
3a40aaa0 UW |
1765 | if (sym != NULL) |
1766 | return sym; | |
5f9a71c3 | 1767 | |
19630284 JB |
1768 | memset (&lookup_data, 0, sizeof (lookup_data)); |
1769 | lookup_data.name = name; | |
1770 | lookup_data.domain = domain; | |
1771 | gdbarch_iterate_over_objfiles_in_search_order | |
1772 | (objfile != NULL ? get_objfile_arch (objfile) : target_gdbarch, | |
1773 | lookup_symbol_global_iterator_cb, &lookup_data, objfile); | |
5f9a71c3 | 1774 | |
19630284 | 1775 | return lookup_data.result; |
5f9a71c3 DC |
1776 | } |
1777 | ||
5eeb2539 | 1778 | int |
9af17804 | 1779 | symbol_matches_domain (enum language symbol_language, |
5eeb2539 AR |
1780 | domain_enum symbol_domain, |
1781 | domain_enum domain) | |
1782 | { | |
9af17804 | 1783 | /* For C++ "struct foo { ... }" also defines a typedef for "foo". |
5eeb2539 AR |
1784 | A Java class declaration also defines a typedef for the class. |
1785 | Similarly, any Ada type declaration implicitly defines a typedef. */ | |
1786 | if (symbol_language == language_cplus | |
6aecb9c2 | 1787 | || symbol_language == language_d |
5eeb2539 AR |
1788 | || symbol_language == language_java |
1789 | || symbol_language == language_ada) | |
1790 | { | |
1791 | if ((domain == VAR_DOMAIN || domain == STRUCT_DOMAIN) | |
1792 | && symbol_domain == STRUCT_DOMAIN) | |
1793 | return 1; | |
1794 | } | |
1795 | /* For all other languages, strict match is required. */ | |
1796 | return (symbol_domain == domain); | |
1797 | } | |
1798 | ||
ccefe4c4 TT |
1799 | /* Look up a type named NAME in the struct_domain. The type returned |
1800 | must not be opaque -- i.e., must have at least one field | |
1801 | defined. */ | |
c906108c | 1802 | |
ccefe4c4 TT |
1803 | struct type * |
1804 | lookup_transparent_type (const char *name) | |
c906108c | 1805 | { |
ccefe4c4 TT |
1806 | return current_language->la_lookup_transparent_type (name); |
1807 | } | |
9af17804 | 1808 | |
ccefe4c4 TT |
1809 | /* A helper for basic_lookup_transparent_type that interfaces with the |
1810 | "quick" symbol table functions. */ | |
357e46e7 | 1811 | |
ccefe4c4 TT |
1812 | static struct type * |
1813 | basic_lookup_transparent_type_quick (struct objfile *objfile, int kind, | |
1814 | const char *name) | |
1815 | { | |
1816 | struct symtab *symtab; | |
1817 | struct blockvector *bv; | |
1818 | struct block *block; | |
1819 | struct symbol *sym; | |
c906108c | 1820 | |
ccefe4c4 TT |
1821 | if (!objfile->sf) |
1822 | return NULL; | |
1823 | symtab = objfile->sf->qf->lookup_symbol (objfile, kind, name, STRUCT_DOMAIN); | |
1824 | if (!symtab) | |
1825 | return NULL; | |
c906108c | 1826 | |
ccefe4c4 TT |
1827 | bv = BLOCKVECTOR (symtab); |
1828 | block = BLOCKVECTOR_BLOCK (bv, kind); | |
1829 | sym = lookup_block_symbol (block, name, STRUCT_DOMAIN); | |
1830 | if (!sym) | |
9af17804 | 1831 | { |
ccefe4c4 TT |
1832 | int other_kind = kind == GLOBAL_BLOCK ? STATIC_BLOCK : GLOBAL_BLOCK; |
1833 | ||
1834 | /* This shouldn't be necessary, but as a last resort | |
1835 | * try looking in the 'other kind' even though the psymtab | |
c378eb4e | 1836 | * claimed the symbol was one thing. It's possible that |
ccefe4c4 TT |
1837 | * the psymtab gets it wrong in some cases. |
1838 | */ | |
1839 | block = BLOCKVECTOR_BLOCK (bv, other_kind); | |
1840 | sym = lookup_block_symbol (block, name, STRUCT_DOMAIN); | |
1841 | if (!sym) | |
c378eb4e | 1842 | /* FIXME; error is wrong in one case. */ |
3e43a32a MS |
1843 | error (_("\ |
1844 | Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\ | |
ccefe4c4 TT |
1845 | %s may be an inlined function, or may be a template function\n\ |
1846 | (if a template, try specifying an instantiation: %s<type>)."), | |
1847 | name, symtab->filename, name, name); | |
c906108c | 1848 | } |
ccefe4c4 TT |
1849 | if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))) |
1850 | return SYMBOL_TYPE (sym); | |
c906108c | 1851 | |
ccefe4c4 | 1852 | return NULL; |
b368761e | 1853 | } |
c906108c | 1854 | |
b368761e DC |
1855 | /* The standard implementation of lookup_transparent_type. This code |
1856 | was modeled on lookup_symbol -- the parts not relevant to looking | |
1857 | up types were just left out. In particular it's assumed here that | |
1858 | types are available in struct_domain and only at file-static or | |
1859 | global blocks. */ | |
c906108c SS |
1860 | |
1861 | struct type * | |
b368761e | 1862 | basic_lookup_transparent_type (const char *name) |
c906108c | 1863 | { |
52f0bd74 AC |
1864 | struct symbol *sym; |
1865 | struct symtab *s = NULL; | |
c906108c | 1866 | struct blockvector *bv; |
52f0bd74 AC |
1867 | struct objfile *objfile; |
1868 | struct block *block; | |
ccefe4c4 | 1869 | struct type *t; |
c906108c SS |
1870 | |
1871 | /* Now search all the global symbols. Do the symtab's first, then | |
c378eb4e | 1872 | check the psymtab's. If a psymtab indicates the existence |
c906108c SS |
1873 | of the desired name as a global, then do psymtab-to-symtab |
1874 | conversion on the fly and return the found symbol. */ | |
c5aa993b | 1875 | |
58b6ab13 | 1876 | ALL_OBJFILES (objfile) |
c5aa993b | 1877 | { |
774b6a14 TT |
1878 | if (objfile->sf) |
1879 | objfile->sf->qf->pre_expand_symtabs_matching (objfile, | |
1880 | GLOBAL_BLOCK, | |
1881 | name, STRUCT_DOMAIN); | |
1882 | ||
d790cf0a DE |
1883 | ALL_OBJFILE_PRIMARY_SYMTABS (objfile, s) |
1884 | { | |
1885 | bv = BLOCKVECTOR (s); | |
1886 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
1887 | sym = lookup_block_symbol (block, name, STRUCT_DOMAIN); | |
1888 | if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))) | |
1889 | { | |
1890 | return SYMBOL_TYPE (sym); | |
1891 | } | |
1892 | } | |
c5aa993b | 1893 | } |
c906108c | 1894 | |
ccefe4c4 | 1895 | ALL_OBJFILES (objfile) |
c5aa993b | 1896 | { |
ccefe4c4 TT |
1897 | t = basic_lookup_transparent_type_quick (objfile, GLOBAL_BLOCK, name); |
1898 | if (t) | |
1899 | return t; | |
c5aa993b | 1900 | } |
c906108c SS |
1901 | |
1902 | /* Now search the static file-level symbols. | |
1903 | Not strictly correct, but more useful than an error. | |
1904 | Do the symtab's first, then | |
c378eb4e | 1905 | check the psymtab's. If a psymtab indicates the existence |
c906108c | 1906 | of the desired name as a file-level static, then do psymtab-to-symtab |
c378eb4e | 1907 | conversion on the fly and return the found symbol. */ |
c906108c | 1908 | |
54ec275a | 1909 | ALL_OBJFILES (objfile) |
c5aa993b | 1910 | { |
774b6a14 TT |
1911 | if (objfile->sf) |
1912 | objfile->sf->qf->pre_expand_symtabs_matching (objfile, STATIC_BLOCK, | |
1913 | name, STRUCT_DOMAIN); | |
1914 | ||
78e5175a | 1915 | ALL_OBJFILE_PRIMARY_SYMTABS (objfile, s) |
c5aa993b | 1916 | { |
54ec275a KS |
1917 | bv = BLOCKVECTOR (s); |
1918 | block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
1919 | sym = lookup_block_symbol (block, name, STRUCT_DOMAIN); | |
1920 | if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))) | |
1921 | { | |
1922 | return SYMBOL_TYPE (sym); | |
1923 | } | |
c5aa993b JM |
1924 | } |
1925 | } | |
c906108c | 1926 | |
ccefe4c4 | 1927 | ALL_OBJFILES (objfile) |
c5aa993b | 1928 | { |
ccefe4c4 TT |
1929 | t = basic_lookup_transparent_type_quick (objfile, STATIC_BLOCK, name); |
1930 | if (t) | |
1931 | return t; | |
c5aa993b | 1932 | } |
ccefe4c4 | 1933 | |
c906108c SS |
1934 | return (struct type *) 0; |
1935 | } | |
1936 | ||
c378eb4e | 1937 | /* Find the name of the file containing main(). */ |
c906108c | 1938 | /* FIXME: What about languages without main() or specially linked |
c378eb4e | 1939 | executables that have no main() ? */ |
c906108c | 1940 | |
dd786858 | 1941 | const char * |
ccefe4c4 | 1942 | find_main_filename (void) |
c906108c | 1943 | { |
52f0bd74 | 1944 | struct objfile *objfile; |
dd786858 | 1945 | char *name = main_name (); |
c906108c | 1946 | |
ccefe4c4 | 1947 | ALL_OBJFILES (objfile) |
c5aa993b | 1948 | { |
dd786858 TT |
1949 | const char *result; |
1950 | ||
ccefe4c4 TT |
1951 | if (!objfile->sf) |
1952 | continue; | |
1953 | result = objfile->sf->qf->find_symbol_file (objfile, name); | |
1954 | if (result) | |
1955 | return result; | |
c5aa993b | 1956 | } |
c906108c SS |
1957 | return (NULL); |
1958 | } | |
1959 | ||
176620f1 | 1960 | /* Search BLOCK for symbol NAME in DOMAIN. |
c906108c SS |
1961 | |
1962 | Note that if NAME is the demangled form of a C++ symbol, we will fail | |
1963 | to find a match during the binary search of the non-encoded names, but | |
1964 | for now we don't worry about the slight inefficiency of looking for | |
1965 | a match we'll never find, since it will go pretty quick. Once the | |
1966 | binary search terminates, we drop through and do a straight linear | |
1bae87b9 | 1967 | search on the symbols. Each symbol which is marked as being a ObjC/C++ |
9af17804 | 1968 | symbol (language_cplus or language_objc set) has both the encoded and |
c378eb4e | 1969 | non-encoded names tested for a match. */ |
c906108c SS |
1970 | |
1971 | struct symbol * | |
aa1ee363 | 1972 | lookup_block_symbol (const struct block *block, const char *name, |
176620f1 | 1973 | const domain_enum domain) |
c906108c | 1974 | { |
8157b174 | 1975 | struct block_iterator iter; |
de4f826b | 1976 | struct symbol *sym; |
c906108c | 1977 | |
de4f826b | 1978 | if (!BLOCK_FUNCTION (block)) |
261397f8 | 1979 | { |
8157b174 | 1980 | for (sym = block_iter_name_first (block, name, &iter); |
de4f826b | 1981 | sym != NULL; |
8157b174 | 1982 | sym = block_iter_name_next (name, &iter)) |
261397f8 | 1983 | { |
5eeb2539 | 1984 | if (symbol_matches_domain (SYMBOL_LANGUAGE (sym), |
94af9270 | 1985 | SYMBOL_DOMAIN (sym), domain)) |
261397f8 DJ |
1986 | return sym; |
1987 | } | |
1988 | return NULL; | |
1989 | } | |
526e70c0 | 1990 | else |
c906108c | 1991 | { |
526e70c0 DC |
1992 | /* Note that parameter symbols do not always show up last in the |
1993 | list; this loop makes sure to take anything else other than | |
1994 | parameter symbols first; it only uses parameter symbols as a | |
1995 | last resort. Note that this only takes up extra computation | |
1996 | time on a match. */ | |
de4f826b DC |
1997 | |
1998 | struct symbol *sym_found = NULL; | |
1999 | ||
8157b174 | 2000 | for (sym = block_iter_name_first (block, name, &iter); |
de4f826b | 2001 | sym != NULL; |
8157b174 | 2002 | sym = block_iter_name_next (name, &iter)) |
c906108c | 2003 | { |
5eeb2539 | 2004 | if (symbol_matches_domain (SYMBOL_LANGUAGE (sym), |
94af9270 | 2005 | SYMBOL_DOMAIN (sym), domain)) |
c906108c | 2006 | { |
c906108c | 2007 | sym_found = sym; |
2a2d4dc3 | 2008 | if (!SYMBOL_IS_ARGUMENT (sym)) |
c906108c SS |
2009 | { |
2010 | break; | |
2011 | } | |
2012 | } | |
c906108c | 2013 | } |
c378eb4e | 2014 | return (sym_found); /* Will be NULL if not found. */ |
c906108c | 2015 | } |
c906108c SS |
2016 | } |
2017 | ||
f8eba3c6 TT |
2018 | /* Iterate over the symbols named NAME, matching DOMAIN, starting with |
2019 | BLOCK. | |
2020 | ||
2021 | For each symbol that matches, CALLBACK is called. The symbol and | |
2022 | DATA are passed to the callback. | |
2023 | ||
2024 | If CALLBACK returns zero, the iteration ends. Otherwise, the | |
2025 | search continues. This function iterates upward through blocks. | |
2026 | When the outermost block has been finished, the function | |
2027 | returns. */ | |
2028 | ||
2029 | void | |
2030 | iterate_over_symbols (const struct block *block, const char *name, | |
2031 | const domain_enum domain, | |
8e704927 | 2032 | symbol_found_callback_ftype *callback, |
f8eba3c6 TT |
2033 | void *data) |
2034 | { | |
2035 | while (block) | |
2036 | { | |
8157b174 | 2037 | struct block_iterator iter; |
f8eba3c6 TT |
2038 | struct symbol *sym; |
2039 | ||
8157b174 | 2040 | for (sym = block_iter_name_first (block, name, &iter); |
f8eba3c6 | 2041 | sym != NULL; |
8157b174 | 2042 | sym = block_iter_name_next (name, &iter)) |
f8eba3c6 TT |
2043 | { |
2044 | if (symbol_matches_domain (SYMBOL_LANGUAGE (sym), | |
2045 | SYMBOL_DOMAIN (sym), domain)) | |
2046 | { | |
2047 | if (!callback (sym, data)) | |
2048 | return; | |
2049 | } | |
2050 | } | |
2051 | ||
2052 | block = BLOCK_SUPERBLOCK (block); | |
2053 | } | |
2054 | } | |
2055 | ||
c906108c | 2056 | /* Find the symtab associated with PC and SECTION. Look through the |
c378eb4e | 2057 | psymtabs and read in another symtab if necessary. */ |
c906108c SS |
2058 | |
2059 | struct symtab * | |
714835d5 | 2060 | find_pc_sect_symtab (CORE_ADDR pc, struct obj_section *section) |
c906108c | 2061 | { |
52f0bd74 | 2062 | struct block *b; |
c906108c | 2063 | struct blockvector *bv; |
52f0bd74 AC |
2064 | struct symtab *s = NULL; |
2065 | struct symtab *best_s = NULL; | |
52f0bd74 | 2066 | struct objfile *objfile; |
6c95b8df | 2067 | struct program_space *pspace; |
c906108c | 2068 | CORE_ADDR distance = 0; |
8a48e967 DJ |
2069 | struct minimal_symbol *msymbol; |
2070 | ||
6c95b8df PA |
2071 | pspace = current_program_space; |
2072 | ||
8a48e967 DJ |
2073 | /* If we know that this is not a text address, return failure. This is |
2074 | necessary because we loop based on the block's high and low code | |
2075 | addresses, which do not include the data ranges, and because | |
2076 | we call find_pc_sect_psymtab which has a similar restriction based | |
2077 | on the partial_symtab's texthigh and textlow. */ | |
2078 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); | |
2079 | if (msymbol | |
712f90be TT |
2080 | && (MSYMBOL_TYPE (msymbol) == mst_data |
2081 | || MSYMBOL_TYPE (msymbol) == mst_bss | |
2082 | || MSYMBOL_TYPE (msymbol) == mst_abs | |
2083 | || MSYMBOL_TYPE (msymbol) == mst_file_data | |
2084 | || MSYMBOL_TYPE (msymbol) == mst_file_bss)) | |
8a48e967 | 2085 | return NULL; |
c906108c SS |
2086 | |
2087 | /* Search all symtabs for the one whose file contains our address, and which | |
2088 | is the smallest of all the ones containing the address. This is designed | |
2089 | to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000 | |
2090 | and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from | |
2091 | 0x1000-0x4000, but for address 0x2345 we want to return symtab b. | |
2092 | ||
2093 | This happens for native ecoff format, where code from included files | |
c378eb4e | 2094 | gets its own symtab. The symtab for the included file should have |
c906108c SS |
2095 | been read in already via the dependency mechanism. |
2096 | It might be swifter to create several symtabs with the same name | |
2097 | like xcoff does (I'm not sure). | |
2098 | ||
2099 | It also happens for objfiles that have their functions reordered. | |
2100 | For these, the symtab we are looking for is not necessarily read in. */ | |
2101 | ||
11309657 | 2102 | ALL_PRIMARY_SYMTABS (objfile, s) |
c5aa993b JM |
2103 | { |
2104 | bv = BLOCKVECTOR (s); | |
2105 | b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
c906108c | 2106 | |
c5aa993b | 2107 | if (BLOCK_START (b) <= pc |
c5aa993b | 2108 | && BLOCK_END (b) > pc |
c5aa993b JM |
2109 | && (distance == 0 |
2110 | || BLOCK_END (b) - BLOCK_START (b) < distance)) | |
2111 | { | |
2112 | /* For an objfile that has its functions reordered, | |
2113 | find_pc_psymtab will find the proper partial symbol table | |
2114 | and we simply return its corresponding symtab. */ | |
2115 | /* In order to better support objfiles that contain both | |
2116 | stabs and coff debugging info, we continue on if a psymtab | |
c378eb4e | 2117 | can't be found. */ |
ccefe4c4 | 2118 | if ((objfile->flags & OBJF_REORDERED) && objfile->sf) |
c5aa993b | 2119 | { |
ccefe4c4 | 2120 | struct symtab *result; |
433759f7 | 2121 | |
ccefe4c4 TT |
2122 | result |
2123 | = objfile->sf->qf->find_pc_sect_symtab (objfile, | |
2124 | msymbol, | |
2125 | pc, section, | |
2126 | 0); | |
2127 | if (result) | |
2128 | return result; | |
c5aa993b JM |
2129 | } |
2130 | if (section != 0) | |
2131 | { | |
8157b174 | 2132 | struct block_iterator iter; |
261397f8 | 2133 | struct symbol *sym = NULL; |
c906108c | 2134 | |
de4f826b | 2135 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c5aa993b | 2136 | { |
261397f8 | 2137 | fixup_symbol_section (sym, objfile); |
714835d5 | 2138 | if (matching_obj_sections (SYMBOL_OBJ_SECTION (sym), section)) |
c5aa993b JM |
2139 | break; |
2140 | } | |
de4f826b | 2141 | if (sym == NULL) |
c378eb4e MS |
2142 | continue; /* No symbol in this symtab matches |
2143 | section. */ | |
c5aa993b JM |
2144 | } |
2145 | distance = BLOCK_END (b) - BLOCK_START (b); | |
2146 | best_s = s; | |
2147 | } | |
2148 | } | |
c906108c SS |
2149 | |
2150 | if (best_s != NULL) | |
c5aa993b | 2151 | return (best_s); |
c906108c | 2152 | |
ccefe4c4 TT |
2153 | ALL_OBJFILES (objfile) |
2154 | { | |
2155 | struct symtab *result; | |
433759f7 | 2156 | |
ccefe4c4 TT |
2157 | if (!objfile->sf) |
2158 | continue; | |
2159 | result = objfile->sf->qf->find_pc_sect_symtab (objfile, | |
2160 | msymbol, | |
2161 | pc, section, | |
2162 | 1); | |
2163 | if (result) | |
2164 | return result; | |
2165 | } | |
2166 | ||
2167 | return NULL; | |
c906108c SS |
2168 | } |
2169 | ||
c378eb4e MS |
2170 | /* Find the symtab associated with PC. Look through the psymtabs and read |
2171 | in another symtab if necessary. Backward compatibility, no section. */ | |
c906108c SS |
2172 | |
2173 | struct symtab * | |
fba45db2 | 2174 | find_pc_symtab (CORE_ADDR pc) |
c906108c SS |
2175 | { |
2176 | return find_pc_sect_symtab (pc, find_pc_mapped_section (pc)); | |
2177 | } | |
c906108c | 2178 | \f |
c5aa993b | 2179 | |
7e73cedf | 2180 | /* Find the source file and line number for a given PC value and SECTION. |
c906108c SS |
2181 | Return a structure containing a symtab pointer, a line number, |
2182 | and a pc range for the entire source line. | |
2183 | The value's .pc field is NOT the specified pc. | |
2184 | NOTCURRENT nonzero means, if specified pc is on a line boundary, | |
2185 | use the line that ends there. Otherwise, in that case, the line | |
2186 | that begins there is used. */ | |
2187 | ||
2188 | /* The big complication here is that a line may start in one file, and end just | |
2189 | before the start of another file. This usually occurs when you #include | |
2190 | code in the middle of a subroutine. To properly find the end of a line's PC | |
2191 | range, we must search all symtabs associated with this compilation unit, and | |
2192 | find the one whose first PC is closer than that of the next line in this | |
2193 | symtab. */ | |
2194 | ||
2195 | /* If it's worth the effort, we could be using a binary search. */ | |
2196 | ||
2197 | struct symtab_and_line | |
714835d5 | 2198 | find_pc_sect_line (CORE_ADDR pc, struct obj_section *section, int notcurrent) |
c906108c SS |
2199 | { |
2200 | struct symtab *s; | |
52f0bd74 AC |
2201 | struct linetable *l; |
2202 | int len; | |
2203 | int i; | |
2204 | struct linetable_entry *item; | |
c906108c SS |
2205 | struct symtab_and_line val; |
2206 | struct blockvector *bv; | |
2207 | struct minimal_symbol *msymbol; | |
2208 | struct minimal_symbol *mfunsym; | |
93b55aa1 | 2209 | struct objfile *objfile; |
c906108c SS |
2210 | |
2211 | /* Info on best line seen so far, and where it starts, and its file. */ | |
2212 | ||
2213 | struct linetable_entry *best = NULL; | |
2214 | CORE_ADDR best_end = 0; | |
2215 | struct symtab *best_symtab = 0; | |
2216 | ||
2217 | /* Store here the first line number | |
2218 | of a file which contains the line at the smallest pc after PC. | |
2219 | If we don't find a line whose range contains PC, | |
2220 | we will use a line one less than this, | |
2221 | with a range from the start of that file to the first line's pc. */ | |
2222 | struct linetable_entry *alt = NULL; | |
2223 | struct symtab *alt_symtab = 0; | |
2224 | ||
2225 | /* Info on best line seen in this file. */ | |
2226 | ||
2227 | struct linetable_entry *prev; | |
2228 | ||
2229 | /* If this pc is not from the current frame, | |
2230 | it is the address of the end of a call instruction. | |
2231 | Quite likely that is the start of the following statement. | |
2232 | But what we want is the statement containing the instruction. | |
2233 | Fudge the pc to make sure we get that. */ | |
2234 | ||
fe39c653 | 2235 | init_sal (&val); /* initialize to zeroes */ |
c906108c | 2236 | |
6c95b8df PA |
2237 | val.pspace = current_program_space; |
2238 | ||
b77b1eb7 JB |
2239 | /* It's tempting to assume that, if we can't find debugging info for |
2240 | any function enclosing PC, that we shouldn't search for line | |
2241 | number info, either. However, GAS can emit line number info for | |
2242 | assembly files --- very helpful when debugging hand-written | |
2243 | assembly code. In such a case, we'd have no debug info for the | |
2244 | function, but we would have line info. */ | |
648f4f79 | 2245 | |
c906108c SS |
2246 | if (notcurrent) |
2247 | pc -= 1; | |
2248 | ||
c5aa993b | 2249 | /* elz: added this because this function returned the wrong |
c906108c | 2250 | information if the pc belongs to a stub (import/export) |
c378eb4e | 2251 | to call a shlib function. This stub would be anywhere between |
9af17804 | 2252 | two functions in the target, and the line info was erroneously |
c378eb4e MS |
2253 | taken to be the one of the line before the pc. */ |
2254 | ||
c906108c | 2255 | /* RT: Further explanation: |
c5aa993b | 2256 | |
c906108c SS |
2257 | * We have stubs (trampolines) inserted between procedures. |
2258 | * | |
2259 | * Example: "shr1" exists in a shared library, and a "shr1" stub also | |
2260 | * exists in the main image. | |
2261 | * | |
2262 | * In the minimal symbol table, we have a bunch of symbols | |
c378eb4e | 2263 | * sorted by start address. The stubs are marked as "trampoline", |
c906108c SS |
2264 | * the others appear as text. E.g.: |
2265 | * | |
9af17804 | 2266 | * Minimal symbol table for main image |
c906108c SS |
2267 | * main: code for main (text symbol) |
2268 | * shr1: stub (trampoline symbol) | |
2269 | * foo: code for foo (text symbol) | |
2270 | * ... | |
2271 | * Minimal symbol table for "shr1" image: | |
2272 | * ... | |
2273 | * shr1: code for shr1 (text symbol) | |
2274 | * ... | |
2275 | * | |
2276 | * So the code below is trying to detect if we are in the stub | |
2277 | * ("shr1" stub), and if so, find the real code ("shr1" trampoline), | |
2278 | * and if found, do the symbolization from the real-code address | |
2279 | * rather than the stub address. | |
2280 | * | |
2281 | * Assumptions being made about the minimal symbol table: | |
2282 | * 1. lookup_minimal_symbol_by_pc() will return a trampoline only | |
c378eb4e | 2283 | * if we're really in the trampoline.s If we're beyond it (say |
9af17804 | 2284 | * we're in "foo" in the above example), it'll have a closer |
c906108c SS |
2285 | * symbol (the "foo" text symbol for example) and will not |
2286 | * return the trampoline. | |
2287 | * 2. lookup_minimal_symbol_text() will find a real text symbol | |
2288 | * corresponding to the trampoline, and whose address will | |
c378eb4e | 2289 | * be different than the trampoline address. I put in a sanity |
c906108c SS |
2290 | * check for the address being the same, to avoid an |
2291 | * infinite recursion. | |
2292 | */ | |
c5aa993b JM |
2293 | msymbol = lookup_minimal_symbol_by_pc (pc); |
2294 | if (msymbol != NULL) | |
c906108c | 2295 | if (MSYMBOL_TYPE (msymbol) == mst_solib_trampoline) |
c5aa993b | 2296 | { |
2335f48e | 2297 | mfunsym = lookup_minimal_symbol_text (SYMBOL_LINKAGE_NAME (msymbol), |
5520a790 | 2298 | NULL); |
c5aa993b JM |
2299 | if (mfunsym == NULL) |
2300 | /* I eliminated this warning since it is coming out | |
2301 | * in the following situation: | |
2302 | * gdb shmain // test program with shared libraries | |
2303 | * (gdb) break shr1 // function in shared lib | |
2304 | * Warning: In stub for ... | |
9af17804 | 2305 | * In the above situation, the shared lib is not loaded yet, |
c5aa993b JM |
2306 | * so of course we can't find the real func/line info, |
2307 | * but the "break" still works, and the warning is annoying. | |
c378eb4e | 2308 | * So I commented out the warning. RT */ |
3e43a32a | 2309 | /* warning ("In stub for %s; unable to find real function/line info", |
c378eb4e MS |
2310 | SYMBOL_LINKAGE_NAME (msymbol)); */ |
2311 | ; | |
c5aa993b | 2312 | /* fall through */ |
3e43a32a MS |
2313 | else if (SYMBOL_VALUE_ADDRESS (mfunsym) |
2314 | == SYMBOL_VALUE_ADDRESS (msymbol)) | |
c5aa993b | 2315 | /* Avoid infinite recursion */ |
c378eb4e | 2316 | /* See above comment about why warning is commented out. */ |
3e43a32a | 2317 | /* warning ("In stub for %s; unable to find real function/line info", |
c378eb4e MS |
2318 | SYMBOL_LINKAGE_NAME (msymbol)); */ |
2319 | ; | |
c5aa993b JM |
2320 | /* fall through */ |
2321 | else | |
82cf6c60 | 2322 | return find_pc_line (SYMBOL_VALUE_ADDRESS (mfunsym), 0); |
c5aa993b | 2323 | } |
c906108c SS |
2324 | |
2325 | ||
2326 | s = find_pc_sect_symtab (pc, section); | |
2327 | if (!s) | |
2328 | { | |
c378eb4e | 2329 | /* If no symbol information, return previous pc. */ |
c906108c SS |
2330 | if (notcurrent) |
2331 | pc++; | |
2332 | val.pc = pc; | |
2333 | return val; | |
2334 | } | |
2335 | ||
2336 | bv = BLOCKVECTOR (s); | |
93b55aa1 | 2337 | objfile = s->objfile; |
c906108c SS |
2338 | |
2339 | /* Look at all the symtabs that share this blockvector. | |
2340 | They all have the same apriori range, that we found was right; | |
2341 | but they have different line tables. */ | |
2342 | ||
93b55aa1 | 2343 | ALL_OBJFILE_SYMTABS (objfile, s) |
c906108c | 2344 | { |
93b55aa1 JK |
2345 | if (BLOCKVECTOR (s) != bv) |
2346 | continue; | |
2347 | ||
c906108c SS |
2348 | /* Find the best line in this symtab. */ |
2349 | l = LINETABLE (s); | |
2350 | if (!l) | |
c5aa993b | 2351 | continue; |
c906108c SS |
2352 | len = l->nitems; |
2353 | if (len <= 0) | |
2354 | { | |
2355 | /* I think len can be zero if the symtab lacks line numbers | |
2356 | (e.g. gcc -g1). (Either that or the LINETABLE is NULL; | |
2357 | I'm not sure which, and maybe it depends on the symbol | |
2358 | reader). */ | |
2359 | continue; | |
2360 | } | |
2361 | ||
2362 | prev = NULL; | |
c378eb4e | 2363 | item = l->item; /* Get first line info. */ |
c906108c SS |
2364 | |
2365 | /* Is this file's first line closer than the first lines of other files? | |
c5aa993b | 2366 | If so, record this file, and its first line, as best alternate. */ |
c906108c SS |
2367 | if (item->pc > pc && (!alt || item->pc < alt->pc)) |
2368 | { | |
2369 | alt = item; | |
2370 | alt_symtab = s; | |
2371 | } | |
2372 | ||
2373 | for (i = 0; i < len; i++, item++) | |
2374 | { | |
2375 | /* Leave prev pointing to the linetable entry for the last line | |
2376 | that started at or before PC. */ | |
2377 | if (item->pc > pc) | |
2378 | break; | |
2379 | ||
2380 | prev = item; | |
2381 | } | |
2382 | ||
2383 | /* At this point, prev points at the line whose start addr is <= pc, and | |
c5aa993b JM |
2384 | item points at the next line. If we ran off the end of the linetable |
2385 | (pc >= start of the last line), then prev == item. If pc < start of | |
2386 | the first line, prev will not be set. */ | |
c906108c SS |
2387 | |
2388 | /* Is this file's best line closer than the best in the other files? | |
083ae935 DJ |
2389 | If so, record this file, and its best line, as best so far. Don't |
2390 | save prev if it represents the end of a function (i.e. line number | |
2391 | 0) instead of a real line. */ | |
c906108c | 2392 | |
083ae935 | 2393 | if (prev && prev->line && (!best || prev->pc > best->pc)) |
c906108c SS |
2394 | { |
2395 | best = prev; | |
2396 | best_symtab = s; | |
25d53da1 KB |
2397 | |
2398 | /* Discard BEST_END if it's before the PC of the current BEST. */ | |
2399 | if (best_end <= best->pc) | |
2400 | best_end = 0; | |
c906108c | 2401 | } |
25d53da1 KB |
2402 | |
2403 | /* If another line (denoted by ITEM) is in the linetable and its | |
2404 | PC is after BEST's PC, but before the current BEST_END, then | |
2405 | use ITEM's PC as the new best_end. */ | |
2406 | if (best && i < len && item->pc > best->pc | |
2407 | && (best_end == 0 || best_end > item->pc)) | |
2408 | best_end = item->pc; | |
c906108c SS |
2409 | } |
2410 | ||
2411 | if (!best_symtab) | |
2412 | { | |
e86e87f7 DJ |
2413 | /* If we didn't find any line number info, just return zeros. |
2414 | We used to return alt->line - 1 here, but that could be | |
2415 | anywhere; if we don't have line number info for this PC, | |
2416 | don't make some up. */ | |
2417 | val.pc = pc; | |
c906108c | 2418 | } |
e8717518 FF |
2419 | else if (best->line == 0) |
2420 | { | |
2421 | /* If our best fit is in a range of PC's for which no line | |
2422 | number info is available (line number is zero) then we didn't | |
c378eb4e | 2423 | find any valid line information. */ |
e8717518 FF |
2424 | val.pc = pc; |
2425 | } | |
c906108c SS |
2426 | else |
2427 | { | |
2428 | val.symtab = best_symtab; | |
2429 | val.line = best->line; | |
2430 | val.pc = best->pc; | |
2431 | if (best_end && (!alt || best_end < alt->pc)) | |
2432 | val.end = best_end; | |
2433 | else if (alt) | |
2434 | val.end = alt->pc; | |
2435 | else | |
2436 | val.end = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); | |
2437 | } | |
2438 | val.section = section; | |
2439 | return val; | |
2440 | } | |
2441 | ||
c378eb4e | 2442 | /* Backward compatibility (no section). */ |
c906108c SS |
2443 | |
2444 | struct symtab_and_line | |
fba45db2 | 2445 | find_pc_line (CORE_ADDR pc, int notcurrent) |
c906108c | 2446 | { |
714835d5 | 2447 | struct obj_section *section; |
c906108c SS |
2448 | |
2449 | section = find_pc_overlay (pc); | |
2450 | if (pc_in_unmapped_range (pc, section)) | |
2451 | pc = overlay_mapped_address (pc, section); | |
2452 | return find_pc_sect_line (pc, section, notcurrent); | |
2453 | } | |
c906108c | 2454 | \f |
c906108c SS |
2455 | /* Find line number LINE in any symtab whose name is the same as |
2456 | SYMTAB. | |
2457 | ||
2458 | If found, return the symtab that contains the linetable in which it was | |
2459 | found, set *INDEX to the index in the linetable of the best entry | |
2460 | found, and set *EXACT_MATCH nonzero if the value returned is an | |
2461 | exact match. | |
2462 | ||
2463 | If not found, return NULL. */ | |
2464 | ||
50641945 | 2465 | struct symtab * |
433759f7 MS |
2466 | find_line_symtab (struct symtab *symtab, int line, |
2467 | int *index, int *exact_match) | |
c906108c | 2468 | { |
6f43c46f | 2469 | int exact = 0; /* Initialized here to avoid a compiler warning. */ |
c906108c SS |
2470 | |
2471 | /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE | |
2472 | so far seen. */ | |
2473 | ||
2474 | int best_index; | |
2475 | struct linetable *best_linetable; | |
2476 | struct symtab *best_symtab; | |
2477 | ||
2478 | /* First try looking it up in the given symtab. */ | |
2479 | best_linetable = LINETABLE (symtab); | |
2480 | best_symtab = symtab; | |
f8eba3c6 | 2481 | best_index = find_line_common (best_linetable, line, &exact, 0); |
c906108c SS |
2482 | if (best_index < 0 || !exact) |
2483 | { | |
2484 | /* Didn't find an exact match. So we better keep looking for | |
c5aa993b JM |
2485 | another symtab with the same name. In the case of xcoff, |
2486 | multiple csects for one source file (produced by IBM's FORTRAN | |
2487 | compiler) produce multiple symtabs (this is unavoidable | |
2488 | assuming csects can be at arbitrary places in memory and that | |
2489 | the GLOBAL_BLOCK of a symtab has a begin and end address). */ | |
c906108c SS |
2490 | |
2491 | /* BEST is the smallest linenumber > LINE so far seen, | |
c5aa993b JM |
2492 | or 0 if none has been seen so far. |
2493 | BEST_INDEX and BEST_LINETABLE identify the item for it. */ | |
c906108c SS |
2494 | int best; |
2495 | ||
2496 | struct objfile *objfile; | |
2497 | struct symtab *s; | |
2498 | ||
2499 | if (best_index >= 0) | |
2500 | best = best_linetable->item[best_index].line; | |
2501 | else | |
2502 | best = 0; | |
2503 | ||
ccefe4c4 | 2504 | ALL_OBJFILES (objfile) |
51432cca | 2505 | { |
ccefe4c4 TT |
2506 | if (objfile->sf) |
2507 | objfile->sf->qf->expand_symtabs_with_filename (objfile, | |
2508 | symtab->filename); | |
51432cca CES |
2509 | } |
2510 | ||
3ffc00b8 JB |
2511 | /* Get symbol full file name if possible. */ |
2512 | symtab_to_fullname (symtab); | |
2513 | ||
c906108c | 2514 | ALL_SYMTABS (objfile, s) |
c5aa993b JM |
2515 | { |
2516 | struct linetable *l; | |
2517 | int ind; | |
c906108c | 2518 | |
3ffc00b8 | 2519 | if (FILENAME_CMP (symtab->filename, s->filename) != 0) |
c5aa993b | 2520 | continue; |
3ffc00b8 JB |
2521 | if (symtab->fullname != NULL |
2522 | && symtab_to_fullname (s) != NULL | |
2523 | && FILENAME_CMP (symtab->fullname, s->fullname) != 0) | |
2524 | continue; | |
c5aa993b | 2525 | l = LINETABLE (s); |
f8eba3c6 | 2526 | ind = find_line_common (l, line, &exact, 0); |
c5aa993b JM |
2527 | if (ind >= 0) |
2528 | { | |
2529 | if (exact) | |
2530 | { | |
2531 | best_index = ind; | |
2532 | best_linetable = l; | |
2533 | best_symtab = s; | |
2534 | goto done; | |
2535 | } | |
2536 | if (best == 0 || l->item[ind].line < best) | |
2537 | { | |
2538 | best = l->item[ind].line; | |
2539 | best_index = ind; | |
2540 | best_linetable = l; | |
2541 | best_symtab = s; | |
2542 | } | |
2543 | } | |
2544 | } | |
c906108c | 2545 | } |
c5aa993b | 2546 | done: |
c906108c SS |
2547 | if (best_index < 0) |
2548 | return NULL; | |
2549 | ||
2550 | if (index) | |
2551 | *index = best_index; | |
2552 | if (exact_match) | |
2553 | *exact_match = exact; | |
2554 | ||
2555 | return best_symtab; | |
2556 | } | |
f8eba3c6 TT |
2557 | |
2558 | /* Given SYMTAB, returns all the PCs function in the symtab that | |
2559 | exactly match LINE. Returns NULL if there are no exact matches, | |
2560 | but updates BEST_ITEM in this case. */ | |
2561 | ||
2562 | VEC (CORE_ADDR) * | |
2563 | find_pcs_for_symtab_line (struct symtab *symtab, int line, | |
2564 | struct linetable_entry **best_item) | |
2565 | { | |
2566 | int start = 0, ix; | |
2567 | struct symbol *previous_function = NULL; | |
2568 | VEC (CORE_ADDR) *result = NULL; | |
2569 | ||
2570 | /* First, collect all the PCs that are at this line. */ | |
2571 | while (1) | |
2572 | { | |
2573 | int was_exact; | |
2574 | int idx; | |
2575 | ||
2576 | idx = find_line_common (LINETABLE (symtab), line, &was_exact, start); | |
2577 | if (idx < 0) | |
2578 | break; | |
2579 | ||
2580 | if (!was_exact) | |
2581 | { | |
2582 | struct linetable_entry *item = &LINETABLE (symtab)->item[idx]; | |
2583 | ||
2584 | if (*best_item == NULL || item->line < (*best_item)->line) | |
2585 | *best_item = item; | |
2586 | ||
2587 | break; | |
2588 | } | |
2589 | ||
2590 | VEC_safe_push (CORE_ADDR, result, LINETABLE (symtab)->item[idx].pc); | |
2591 | start = idx + 1; | |
2592 | } | |
2593 | ||
2594 | return result; | |
2595 | } | |
2596 | ||
c906108c SS |
2597 | \f |
2598 | /* Set the PC value for a given source file and line number and return true. | |
2599 | Returns zero for invalid line number (and sets the PC to 0). | |
2600 | The source file is specified with a struct symtab. */ | |
2601 | ||
2602 | int | |
fba45db2 | 2603 | find_line_pc (struct symtab *symtab, int line, CORE_ADDR *pc) |
c906108c SS |
2604 | { |
2605 | struct linetable *l; | |
2606 | int ind; | |
2607 | ||
2608 | *pc = 0; | |
2609 | if (symtab == 0) | |
2610 | return 0; | |
2611 | ||
2612 | symtab = find_line_symtab (symtab, line, &ind, NULL); | |
2613 | if (symtab != NULL) | |
2614 | { | |
2615 | l = LINETABLE (symtab); | |
2616 | *pc = l->item[ind].pc; | |
2617 | return 1; | |
2618 | } | |
2619 | else | |
2620 | return 0; | |
2621 | } | |
2622 | ||
2623 | /* Find the range of pc values in a line. | |
2624 | Store the starting pc of the line into *STARTPTR | |
2625 | and the ending pc (start of next line) into *ENDPTR. | |
2626 | Returns 1 to indicate success. | |
2627 | Returns 0 if could not find the specified line. */ | |
2628 | ||
2629 | int | |
fba45db2 KB |
2630 | find_line_pc_range (struct symtab_and_line sal, CORE_ADDR *startptr, |
2631 | CORE_ADDR *endptr) | |
c906108c SS |
2632 | { |
2633 | CORE_ADDR startaddr; | |
2634 | struct symtab_and_line found_sal; | |
2635 | ||
2636 | startaddr = sal.pc; | |
c5aa993b | 2637 | if (startaddr == 0 && !find_line_pc (sal.symtab, sal.line, &startaddr)) |
c906108c SS |
2638 | return 0; |
2639 | ||
2640 | /* This whole function is based on address. For example, if line 10 has | |
2641 | two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then | |
2642 | "info line *0x123" should say the line goes from 0x100 to 0x200 | |
2643 | and "info line *0x355" should say the line goes from 0x300 to 0x400. | |
2644 | This also insures that we never give a range like "starts at 0x134 | |
2645 | and ends at 0x12c". */ | |
2646 | ||
2647 | found_sal = find_pc_sect_line (startaddr, sal.section, 0); | |
2648 | if (found_sal.line != sal.line) | |
2649 | { | |
2650 | /* The specified line (sal) has zero bytes. */ | |
2651 | *startptr = found_sal.pc; | |
2652 | *endptr = found_sal.pc; | |
2653 | } | |
2654 | else | |
2655 | { | |
2656 | *startptr = found_sal.pc; | |
2657 | *endptr = found_sal.end; | |
2658 | } | |
2659 | return 1; | |
2660 | } | |
2661 | ||
2662 | /* Given a line table and a line number, return the index into the line | |
2663 | table for the pc of the nearest line whose number is >= the specified one. | |
2664 | Return -1 if none is found. The value is >= 0 if it is an index. | |
f8eba3c6 | 2665 | START is the index at which to start searching the line table. |
c906108c SS |
2666 | |
2667 | Set *EXACT_MATCH nonzero if the value returned is an exact match. */ | |
2668 | ||
2669 | static int | |
aa1ee363 | 2670 | find_line_common (struct linetable *l, int lineno, |
f8eba3c6 | 2671 | int *exact_match, int start) |
c906108c | 2672 | { |
52f0bd74 AC |
2673 | int i; |
2674 | int len; | |
c906108c SS |
2675 | |
2676 | /* BEST is the smallest linenumber > LINENO so far seen, | |
2677 | or 0 if none has been seen so far. | |
2678 | BEST_INDEX identifies the item for it. */ | |
2679 | ||
2680 | int best_index = -1; | |
2681 | int best = 0; | |
2682 | ||
b7589f7d DJ |
2683 | *exact_match = 0; |
2684 | ||
c906108c SS |
2685 | if (lineno <= 0) |
2686 | return -1; | |
2687 | if (l == 0) | |
2688 | return -1; | |
2689 | ||
2690 | len = l->nitems; | |
f8eba3c6 | 2691 | for (i = start; i < len; i++) |
c906108c | 2692 | { |
aa1ee363 | 2693 | struct linetable_entry *item = &(l->item[i]); |
c906108c SS |
2694 | |
2695 | if (item->line == lineno) | |
2696 | { | |
2697 | /* Return the first (lowest address) entry which matches. */ | |
2698 | *exact_match = 1; | |
2699 | return i; | |
2700 | } | |
2701 | ||
2702 | if (item->line > lineno && (best == 0 || item->line < best)) | |
2703 | { | |
2704 | best = item->line; | |
2705 | best_index = i; | |
2706 | } | |
2707 | } | |
2708 | ||
2709 | /* If we got here, we didn't get an exact match. */ | |
c906108c SS |
2710 | return best_index; |
2711 | } | |
2712 | ||
2713 | int | |
fba45db2 | 2714 | find_pc_line_pc_range (CORE_ADDR pc, CORE_ADDR *startptr, CORE_ADDR *endptr) |
c906108c SS |
2715 | { |
2716 | struct symtab_and_line sal; | |
433759f7 | 2717 | |
c906108c SS |
2718 | sal = find_pc_line (pc, 0); |
2719 | *startptr = sal.pc; | |
2720 | *endptr = sal.end; | |
2721 | return sal.symtab != 0; | |
2722 | } | |
2723 | ||
8c7a1ee8 EZ |
2724 | /* Given a function start address FUNC_ADDR and SYMTAB, find the first |
2725 | address for that function that has an entry in SYMTAB's line info | |
2726 | table. If such an entry cannot be found, return FUNC_ADDR | |
2727 | unaltered. */ | |
eca864fe | 2728 | |
70221824 | 2729 | static CORE_ADDR |
8c7a1ee8 EZ |
2730 | skip_prologue_using_lineinfo (CORE_ADDR func_addr, struct symtab *symtab) |
2731 | { | |
2732 | CORE_ADDR func_start, func_end; | |
2733 | struct linetable *l; | |
952a6d41 | 2734 | int i; |
8c7a1ee8 EZ |
2735 | |
2736 | /* Give up if this symbol has no lineinfo table. */ | |
2737 | l = LINETABLE (symtab); | |
2738 | if (l == NULL) | |
2739 | return func_addr; | |
2740 | ||
2741 | /* Get the range for the function's PC values, or give up if we | |
2742 | cannot, for some reason. */ | |
2743 | if (!find_pc_partial_function (func_addr, NULL, &func_start, &func_end)) | |
2744 | return func_addr; | |
2745 | ||
2746 | /* Linetable entries are ordered by PC values, see the commentary in | |
2747 | symtab.h where `struct linetable' is defined. Thus, the first | |
2748 | entry whose PC is in the range [FUNC_START..FUNC_END[ is the | |
2749 | address we are looking for. */ | |
2750 | for (i = 0; i < l->nitems; i++) | |
2751 | { | |
2752 | struct linetable_entry *item = &(l->item[i]); | |
2753 | ||
2754 | /* Don't use line numbers of zero, they mark special entries in | |
2755 | the table. See the commentary on symtab.h before the | |
2756 | definition of struct linetable. */ | |
2757 | if (item->line > 0 && func_start <= item->pc && item->pc < func_end) | |
2758 | return item->pc; | |
2759 | } | |
2760 | ||
2761 | return func_addr; | |
2762 | } | |
2763 | ||
c906108c SS |
2764 | /* Given a function symbol SYM, find the symtab and line for the start |
2765 | of the function. | |
2766 | If the argument FUNFIRSTLINE is nonzero, we want the first line | |
2767 | of real code inside the function. */ | |
2768 | ||
50641945 | 2769 | struct symtab_and_line |
fba45db2 | 2770 | find_function_start_sal (struct symbol *sym, int funfirstline) |
c906108c | 2771 | { |
059acae7 UW |
2772 | struct symtab_and_line sal; |
2773 | ||
2774 | fixup_symbol_section (sym, NULL); | |
2775 | sal = find_pc_sect_line (BLOCK_START (SYMBOL_BLOCK_VALUE (sym)), | |
2776 | SYMBOL_OBJ_SECTION (sym), 0); | |
2777 | ||
86da934b UW |
2778 | /* We always should have a line for the function start address. |
2779 | If we don't, something is odd. Create a plain SAL refering | |
2780 | just the PC and hope that skip_prologue_sal (if requested) | |
2781 | can find a line number for after the prologue. */ | |
2782 | if (sal.pc < BLOCK_START (SYMBOL_BLOCK_VALUE (sym))) | |
2783 | { | |
2784 | init_sal (&sal); | |
2785 | sal.pspace = current_program_space; | |
2786 | sal.pc = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); | |
2787 | sal.section = SYMBOL_OBJ_SECTION (sym); | |
2788 | } | |
2789 | ||
059acae7 UW |
2790 | if (funfirstline) |
2791 | skip_prologue_sal (&sal); | |
bccdca4a | 2792 | |
059acae7 UW |
2793 | return sal; |
2794 | } | |
2795 | ||
2796 | /* Adjust SAL to the first instruction past the function prologue. | |
2797 | If the PC was explicitly specified, the SAL is not changed. | |
2798 | If the line number was explicitly specified, at most the SAL's PC | |
2799 | is updated. If SAL is already past the prologue, then do nothing. */ | |
eca864fe | 2800 | |
059acae7 UW |
2801 | void |
2802 | skip_prologue_sal (struct symtab_and_line *sal) | |
2803 | { | |
2804 | struct symbol *sym; | |
2805 | struct symtab_and_line start_sal; | |
2806 | struct cleanup *old_chain; | |
8be455d7 | 2807 | CORE_ADDR pc, saved_pc; |
059acae7 UW |
2808 | struct obj_section *section; |
2809 | const char *name; | |
2810 | struct objfile *objfile; | |
2811 | struct gdbarch *gdbarch; | |
edb3359d | 2812 | struct block *b, *function_block; |
8be455d7 | 2813 | int force_skip, skip; |
c906108c | 2814 | |
059acae7 UW |
2815 | /* Do not change the SAL is PC was specified explicitly. */ |
2816 | if (sal->explicit_pc) | |
2817 | return; | |
6c95b8df PA |
2818 | |
2819 | old_chain = save_current_space_and_thread (); | |
059acae7 | 2820 | switch_to_program_space_and_thread (sal->pspace); |
6c95b8df | 2821 | |
059acae7 UW |
2822 | sym = find_pc_sect_function (sal->pc, sal->section); |
2823 | if (sym != NULL) | |
bccdca4a | 2824 | { |
059acae7 UW |
2825 | fixup_symbol_section (sym, NULL); |
2826 | ||
2827 | pc = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); | |
2828 | section = SYMBOL_OBJ_SECTION (sym); | |
2829 | name = SYMBOL_LINKAGE_NAME (sym); | |
2830 | objfile = SYMBOL_SYMTAB (sym)->objfile; | |
c906108c | 2831 | } |
059acae7 UW |
2832 | else |
2833 | { | |
2834 | struct minimal_symbol *msymbol | |
2835 | = lookup_minimal_symbol_by_pc_section (sal->pc, sal->section); | |
433759f7 | 2836 | |
059acae7 UW |
2837 | if (msymbol == NULL) |
2838 | { | |
2839 | do_cleanups (old_chain); | |
2840 | return; | |
2841 | } | |
2842 | ||
2843 | pc = SYMBOL_VALUE_ADDRESS (msymbol); | |
2844 | section = SYMBOL_OBJ_SECTION (msymbol); | |
2845 | name = SYMBOL_LINKAGE_NAME (msymbol); | |
2846 | objfile = msymbol_objfile (msymbol); | |
2847 | } | |
2848 | ||
2849 | gdbarch = get_objfile_arch (objfile); | |
2850 | ||
8be455d7 JK |
2851 | /* Process the prologue in two passes. In the first pass try to skip the |
2852 | prologue (SKIP is true) and verify there is a real need for it (indicated | |
2853 | by FORCE_SKIP). If no such reason was found run a second pass where the | |
2854 | prologue is not skipped (SKIP is false). */ | |
059acae7 | 2855 | |
8be455d7 JK |
2856 | skip = 1; |
2857 | force_skip = 1; | |
059acae7 | 2858 | |
8be455d7 JK |
2859 | /* Be conservative - allow direct PC (without skipping prologue) only if we |
2860 | have proven the CU (Compilation Unit) supports it. sal->SYMTAB does not | |
2861 | have to be set by the caller so we use SYM instead. */ | |
2862 | if (sym && SYMBOL_SYMTAB (sym)->locations_valid) | |
2863 | force_skip = 0; | |
059acae7 | 2864 | |
8be455d7 JK |
2865 | saved_pc = pc; |
2866 | do | |
c906108c | 2867 | { |
8be455d7 | 2868 | pc = saved_pc; |
4309257c | 2869 | |
8be455d7 JK |
2870 | /* If the function is in an unmapped overlay, use its unmapped LMA address, |
2871 | so that gdbarch_skip_prologue has something unique to work on. */ | |
2872 | if (section_is_overlay (section) && !section_is_mapped (section)) | |
2873 | pc = overlay_unmapped_address (pc, section); | |
2874 | ||
2875 | /* Skip "first line" of function (which is actually its prologue). */ | |
2876 | pc += gdbarch_deprecated_function_start_offset (gdbarch); | |
2877 | if (skip) | |
2878 | pc = gdbarch_skip_prologue (gdbarch, pc); | |
2879 | ||
2880 | /* For overlays, map pc back into its mapped VMA range. */ | |
2881 | pc = overlay_mapped_address (pc, section); | |
2882 | ||
2883 | /* Calculate line number. */ | |
059acae7 | 2884 | start_sal = find_pc_sect_line (pc, section, 0); |
8be455d7 JK |
2885 | |
2886 | /* Check if gdbarch_skip_prologue left us in mid-line, and the next | |
2887 | line is still part of the same function. */ | |
2888 | if (skip && start_sal.pc != pc | |
b1d96efd JK |
2889 | && (sym ? (BLOCK_START (SYMBOL_BLOCK_VALUE (sym)) <= start_sal.end |
2890 | && start_sal.end < BLOCK_END (SYMBOL_BLOCK_VALUE (sym))) | |
8be455d7 JK |
2891 | : (lookup_minimal_symbol_by_pc_section (start_sal.end, section) |
2892 | == lookup_minimal_symbol_by_pc_section (pc, section)))) | |
2893 | { | |
2894 | /* First pc of next line */ | |
2895 | pc = start_sal.end; | |
2896 | /* Recalculate the line number (might not be N+1). */ | |
2897 | start_sal = find_pc_sect_line (pc, section, 0); | |
2898 | } | |
2899 | ||
2900 | /* On targets with executable formats that don't have a concept of | |
2901 | constructors (ELF with .init has, PE doesn't), gcc emits a call | |
2902 | to `__main' in `main' between the prologue and before user | |
2903 | code. */ | |
2904 | if (gdbarch_skip_main_prologue_p (gdbarch) | |
7ccffd7c | 2905 | && name && strcmp_iw (name, "main") == 0) |
8be455d7 JK |
2906 | { |
2907 | pc = gdbarch_skip_main_prologue (gdbarch, pc); | |
2908 | /* Recalculate the line number (might not be N+1). */ | |
2909 | start_sal = find_pc_sect_line (pc, section, 0); | |
2910 | force_skip = 1; | |
2911 | } | |
4309257c | 2912 | } |
8be455d7 | 2913 | while (!force_skip && skip--); |
4309257c | 2914 | |
8c7a1ee8 EZ |
2915 | /* If we still don't have a valid source line, try to find the first |
2916 | PC in the lineinfo table that belongs to the same function. This | |
2917 | happens with COFF debug info, which does not seem to have an | |
2918 | entry in lineinfo table for the code after the prologue which has | |
2919 | no direct relation to source. For example, this was found to be | |
2920 | the case with the DJGPP target using "gcc -gcoff" when the | |
2921 | compiler inserted code after the prologue to make sure the stack | |
2922 | is aligned. */ | |
8be455d7 | 2923 | if (!force_skip && sym && start_sal.symtab == NULL) |
8c7a1ee8 EZ |
2924 | { |
2925 | pc = skip_prologue_using_lineinfo (pc, SYMBOL_SYMTAB (sym)); | |
2926 | /* Recalculate the line number. */ | |
059acae7 | 2927 | start_sal = find_pc_sect_line (pc, section, 0); |
8c7a1ee8 EZ |
2928 | } |
2929 | ||
059acae7 UW |
2930 | do_cleanups (old_chain); |
2931 | ||
2932 | /* If we're already past the prologue, leave SAL unchanged. Otherwise | |
2933 | forward SAL to the end of the prologue. */ | |
2934 | if (sal->pc >= pc) | |
2935 | return; | |
2936 | ||
2937 | sal->pc = pc; | |
2938 | sal->section = section; | |
2939 | ||
2940 | /* Unless the explicit_line flag was set, update the SAL line | |
2941 | and symtab to correspond to the modified PC location. */ | |
2942 | if (sal->explicit_line) | |
2943 | return; | |
2944 | ||
2945 | sal->symtab = start_sal.symtab; | |
2946 | sal->line = start_sal.line; | |
2947 | sal->end = start_sal.end; | |
c906108c | 2948 | |
edb3359d DJ |
2949 | /* Check if we are now inside an inlined function. If we can, |
2950 | use the call site of the function instead. */ | |
059acae7 | 2951 | b = block_for_pc_sect (sal->pc, sal->section); |
edb3359d DJ |
2952 | function_block = NULL; |
2953 | while (b != NULL) | |
2954 | { | |
2955 | if (BLOCK_FUNCTION (b) != NULL && block_inlined_p (b)) | |
2956 | function_block = b; | |
2957 | else if (BLOCK_FUNCTION (b) != NULL) | |
2958 | break; | |
2959 | b = BLOCK_SUPERBLOCK (b); | |
2960 | } | |
2961 | if (function_block != NULL | |
2962 | && SYMBOL_LINE (BLOCK_FUNCTION (function_block)) != 0) | |
2963 | { | |
059acae7 UW |
2964 | sal->line = SYMBOL_LINE (BLOCK_FUNCTION (function_block)); |
2965 | sal->symtab = SYMBOL_SYMTAB (BLOCK_FUNCTION (function_block)); | |
edb3359d | 2966 | } |
c906108c | 2967 | } |
50641945 | 2968 | |
c906108c SS |
2969 | /* If P is of the form "operator[ \t]+..." where `...' is |
2970 | some legitimate operator text, return a pointer to the | |
2971 | beginning of the substring of the operator text. | |
2972 | Otherwise, return "". */ | |
eca864fe | 2973 | |
fc9f3a69 | 2974 | static char * |
fba45db2 | 2975 | operator_chars (char *p, char **end) |
c906108c SS |
2976 | { |
2977 | *end = ""; | |
2978 | if (strncmp (p, "operator", 8)) | |
2979 | return *end; | |
2980 | p += 8; | |
2981 | ||
2982 | /* Don't get faked out by `operator' being part of a longer | |
2983 | identifier. */ | |
c5aa993b | 2984 | if (isalpha (*p) || *p == '_' || *p == '$' || *p == '\0') |
c906108c SS |
2985 | return *end; |
2986 | ||
2987 | /* Allow some whitespace between `operator' and the operator symbol. */ | |
2988 | while (*p == ' ' || *p == '\t') | |
2989 | p++; | |
2990 | ||
c378eb4e | 2991 | /* Recognize 'operator TYPENAME'. */ |
c906108c | 2992 | |
c5aa993b | 2993 | if (isalpha (*p) || *p == '_' || *p == '$') |
c906108c | 2994 | { |
aa1ee363 | 2995 | char *q = p + 1; |
433759f7 | 2996 | |
c5aa993b | 2997 | while (isalnum (*q) || *q == '_' || *q == '$') |
c906108c SS |
2998 | q++; |
2999 | *end = q; | |
3000 | return p; | |
3001 | } | |
3002 | ||
53e8ad3d MS |
3003 | while (*p) |
3004 | switch (*p) | |
3005 | { | |
3006 | case '\\': /* regexp quoting */ | |
3007 | if (p[1] == '*') | |
3008 | { | |
3e43a32a | 3009 | if (p[2] == '=') /* 'operator\*=' */ |
53e8ad3d MS |
3010 | *end = p + 3; |
3011 | else /* 'operator\*' */ | |
3012 | *end = p + 2; | |
3013 | return p; | |
3014 | } | |
3015 | else if (p[1] == '[') | |
3016 | { | |
3017 | if (p[2] == ']') | |
3e43a32a MS |
3018 | error (_("mismatched quoting on brackets, " |
3019 | "try 'operator\\[\\]'")); | |
53e8ad3d MS |
3020 | else if (p[2] == '\\' && p[3] == ']') |
3021 | { | |
3022 | *end = p + 4; /* 'operator\[\]' */ | |
3023 | return p; | |
3024 | } | |
3025 | else | |
8a3fe4f8 | 3026 | error (_("nothing is allowed between '[' and ']'")); |
53e8ad3d | 3027 | } |
9af17804 | 3028 | else |
53e8ad3d | 3029 | { |
c378eb4e | 3030 | /* Gratuitous qoute: skip it and move on. */ |
53e8ad3d MS |
3031 | p++; |
3032 | continue; | |
3033 | } | |
3034 | break; | |
3035 | case '!': | |
3036 | case '=': | |
3037 | case '*': | |
3038 | case '/': | |
3039 | case '%': | |
3040 | case '^': | |
3041 | if (p[1] == '=') | |
3042 | *end = p + 2; | |
3043 | else | |
3044 | *end = p + 1; | |
3045 | return p; | |
3046 | case '<': | |
3047 | case '>': | |
3048 | case '+': | |
3049 | case '-': | |
3050 | case '&': | |
3051 | case '|': | |
3052 | if (p[0] == '-' && p[1] == '>') | |
3053 | { | |
c378eb4e | 3054 | /* Struct pointer member operator 'operator->'. */ |
53e8ad3d MS |
3055 | if (p[2] == '*') |
3056 | { | |
3057 | *end = p + 3; /* 'operator->*' */ | |
3058 | return p; | |
3059 | } | |
3060 | else if (p[2] == '\\') | |
3061 | { | |
3062 | *end = p + 4; /* Hopefully 'operator->\*' */ | |
3063 | return p; | |
3064 | } | |
3065 | else | |
3066 | { | |
3067 | *end = p + 2; /* 'operator->' */ | |
3068 | return p; | |
3069 | } | |
3070 | } | |
3071 | if (p[1] == '=' || p[1] == p[0]) | |
3072 | *end = p + 2; | |
3073 | else | |
3074 | *end = p + 1; | |
3075 | return p; | |
3076 | case '~': | |
3077 | case ',': | |
c5aa993b | 3078 | *end = p + 1; |
53e8ad3d MS |
3079 | return p; |
3080 | case '(': | |
3081 | if (p[1] != ')') | |
3e43a32a MS |
3082 | error (_("`operator ()' must be specified " |
3083 | "without whitespace in `()'")); | |
c5aa993b | 3084 | *end = p + 2; |
53e8ad3d MS |
3085 | return p; |
3086 | case '?': | |
3087 | if (p[1] != ':') | |
3e43a32a MS |
3088 | error (_("`operator ?:' must be specified " |
3089 | "without whitespace in `?:'")); | |
53e8ad3d MS |
3090 | *end = p + 2; |
3091 | return p; | |
3092 | case '[': | |
3093 | if (p[1] != ']') | |
3e43a32a MS |
3094 | error (_("`operator []' must be specified " |
3095 | "without whitespace in `[]'")); | |
53e8ad3d MS |
3096 | *end = p + 2; |
3097 | return p; | |
3098 | default: | |
8a3fe4f8 | 3099 | error (_("`operator %s' not supported"), p); |
53e8ad3d MS |
3100 | break; |
3101 | } | |
3102 | ||
c906108c SS |
3103 | *end = ""; |
3104 | return *end; | |
3105 | } | |
c906108c | 3106 | \f |
c5aa993b | 3107 | |
c94fdfd0 EZ |
3108 | /* If FILE is not already in the table of files, return zero; |
3109 | otherwise return non-zero. Optionally add FILE to the table if ADD | |
3110 | is non-zero. If *FIRST is non-zero, forget the old table | |
3111 | contents. */ | |
eca864fe | 3112 | |
c94fdfd0 EZ |
3113 | static int |
3114 | filename_seen (const char *file, int add, int *first) | |
c906108c | 3115 | { |
c94fdfd0 EZ |
3116 | /* Table of files seen so far. */ |
3117 | static const char **tab = NULL; | |
c906108c SS |
3118 | /* Allocated size of tab in elements. |
3119 | Start with one 256-byte block (when using GNU malloc.c). | |
3120 | 24 is the malloc overhead when range checking is in effect. */ | |
3121 | static int tab_alloc_size = (256 - 24) / sizeof (char *); | |
3122 | /* Current size of tab in elements. */ | |
3123 | static int tab_cur_size; | |
c94fdfd0 | 3124 | const char **p; |
c906108c SS |
3125 | |
3126 | if (*first) | |
3127 | { | |
3128 | if (tab == NULL) | |
c94fdfd0 | 3129 | tab = (const char **) xmalloc (tab_alloc_size * sizeof (*tab)); |
c906108c SS |
3130 | tab_cur_size = 0; |
3131 | } | |
3132 | ||
c94fdfd0 | 3133 | /* Is FILE in tab? */ |
c906108c | 3134 | for (p = tab; p < tab + tab_cur_size; p++) |
0ba1096a | 3135 | if (filename_cmp (*p, file) == 0) |
c94fdfd0 EZ |
3136 | return 1; |
3137 | ||
3138 | /* No; maybe add it to tab. */ | |
3139 | if (add) | |
c906108c | 3140 | { |
c94fdfd0 EZ |
3141 | if (tab_cur_size == tab_alloc_size) |
3142 | { | |
3143 | tab_alloc_size *= 2; | |
3144 | tab = (const char **) xrealloc ((char *) tab, | |
3145 | tab_alloc_size * sizeof (*tab)); | |
3146 | } | |
3147 | tab[tab_cur_size++] = file; | |
c906108c | 3148 | } |
c906108c | 3149 | |
c94fdfd0 EZ |
3150 | return 0; |
3151 | } | |
3152 | ||
3153 | /* Slave routine for sources_info. Force line breaks at ,'s. | |
3154 | NAME is the name to print and *FIRST is nonzero if this is the first | |
3155 | name printed. Set *FIRST to zero. */ | |
eca864fe | 3156 | |
c94fdfd0 | 3157 | static void |
d092d1a2 | 3158 | output_source_filename (const char *name, int *first) |
c94fdfd0 EZ |
3159 | { |
3160 | /* Since a single source file can result in several partial symbol | |
3161 | tables, we need to avoid printing it more than once. Note: if | |
3162 | some of the psymtabs are read in and some are not, it gets | |
3163 | printed both under "Source files for which symbols have been | |
3164 | read" and "Source files for which symbols will be read in on | |
3165 | demand". I consider this a reasonable way to deal with the | |
3166 | situation. I'm not sure whether this can also happen for | |
3167 | symtabs; it doesn't hurt to check. */ | |
3168 | ||
3169 | /* Was NAME already seen? */ | |
3170 | if (filename_seen (name, 1, first)) | |
3171 | { | |
3172 | /* Yes; don't print it again. */ | |
3173 | return; | |
3174 | } | |
3175 | /* No; print it and reset *FIRST. */ | |
c906108c SS |
3176 | if (*first) |
3177 | { | |
3178 | *first = 0; | |
3179 | } | |
3180 | else | |
3181 | { | |
3182 | printf_filtered (", "); | |
3183 | } | |
3184 | ||
3185 | wrap_here (""); | |
3186 | fputs_filtered (name, gdb_stdout); | |
c5aa993b | 3187 | } |
c906108c | 3188 | |
ccefe4c4 | 3189 | /* A callback for map_partial_symbol_filenames. */ |
eca864fe | 3190 | |
ccefe4c4 | 3191 | static void |
533a737e | 3192 | output_partial_symbol_filename (const char *filename, const char *fullname, |
ccefe4c4 TT |
3193 | void *data) |
3194 | { | |
3195 | output_source_filename (fullname ? fullname : filename, data); | |
3196 | } | |
3197 | ||
c906108c | 3198 | static void |
fba45db2 | 3199 | sources_info (char *ignore, int from_tty) |
c906108c | 3200 | { |
52f0bd74 | 3201 | struct symtab *s; |
52f0bd74 | 3202 | struct objfile *objfile; |
c906108c | 3203 | int first; |
c5aa993b | 3204 | |
c906108c SS |
3205 | if (!have_full_symbols () && !have_partial_symbols ()) |
3206 | { | |
8a3fe4f8 | 3207 | error (_("No symbol table is loaded. Use the \"file\" command.")); |
c906108c | 3208 | } |
c5aa993b | 3209 | |
c906108c SS |
3210 | printf_filtered ("Source files for which symbols have been read in:\n\n"); |
3211 | ||
3212 | first = 1; | |
3213 | ALL_SYMTABS (objfile, s) | |
c5aa993b | 3214 | { |
d092d1a2 | 3215 | const char *fullname = symtab_to_fullname (s); |
433759f7 | 3216 | |
d092d1a2 | 3217 | output_source_filename (fullname ? fullname : s->filename, &first); |
c5aa993b | 3218 | } |
c906108c | 3219 | printf_filtered ("\n\n"); |
c5aa993b | 3220 | |
3e43a32a MS |
3221 | printf_filtered ("Source files for which symbols " |
3222 | "will be read in on demand:\n\n"); | |
c906108c SS |
3223 | |
3224 | first = 1; | |
74e2f255 DE |
3225 | map_partial_symbol_filenames (output_partial_symbol_filename, &first, |
3226 | 1 /*need_fullname*/); | |
c906108c SS |
3227 | printf_filtered ("\n"); |
3228 | } | |
3229 | ||
3230 | static int | |
ccefe4c4 | 3231 | file_matches (const char *file, char *files[], int nfiles) |
c906108c SS |
3232 | { |
3233 | int i; | |
3234 | ||
3235 | if (file != NULL && nfiles != 0) | |
3236 | { | |
3237 | for (i = 0; i < nfiles; i++) | |
c5aa993b | 3238 | { |
0ba1096a | 3239 | if (filename_cmp (files[i], lbasename (file)) == 0) |
c5aa993b JM |
3240 | return 1; |
3241 | } | |
c906108c SS |
3242 | } |
3243 | else if (nfiles == 0) | |
3244 | return 1; | |
3245 | return 0; | |
3246 | } | |
3247 | ||
c378eb4e | 3248 | /* Free any memory associated with a search. */ |
eca864fe | 3249 | |
c906108c | 3250 | void |
fba45db2 | 3251 | free_search_symbols (struct symbol_search *symbols) |
c906108c SS |
3252 | { |
3253 | struct symbol_search *p; | |
3254 | struct symbol_search *next; | |
3255 | ||
3256 | for (p = symbols; p != NULL; p = next) | |
3257 | { | |
3258 | next = p->next; | |
b8c9b27d | 3259 | xfree (p); |
c906108c SS |
3260 | } |
3261 | } | |
3262 | ||
5bd98722 AC |
3263 | static void |
3264 | do_free_search_symbols_cleanup (void *symbols) | |
3265 | { | |
3266 | free_search_symbols (symbols); | |
3267 | } | |
3268 | ||
3269 | struct cleanup * | |
3270 | make_cleanup_free_search_symbols (struct symbol_search *symbols) | |
3271 | { | |
3272 | return make_cleanup (do_free_search_symbols_cleanup, symbols); | |
3273 | } | |
3274 | ||
434d2d4f DJ |
3275 | /* Helper function for sort_search_symbols and qsort. Can only |
3276 | sort symbols, not minimal symbols. */ | |
eca864fe | 3277 | |
434d2d4f DJ |
3278 | static int |
3279 | compare_search_syms (const void *sa, const void *sb) | |
3280 | { | |
3281 | struct symbol_search **sym_a = (struct symbol_search **) sa; | |
3282 | struct symbol_search **sym_b = (struct symbol_search **) sb; | |
3283 | ||
de5ad195 DC |
3284 | return strcmp (SYMBOL_PRINT_NAME ((*sym_a)->symbol), |
3285 | SYMBOL_PRINT_NAME ((*sym_b)->symbol)); | |
434d2d4f DJ |
3286 | } |
3287 | ||
3288 | /* Sort the ``nfound'' symbols in the list after prevtail. Leave | |
3289 | prevtail where it is, but update its next pointer to point to | |
3290 | the first of the sorted symbols. */ | |
eca864fe | 3291 | |
434d2d4f DJ |
3292 | static struct symbol_search * |
3293 | sort_search_symbols (struct symbol_search *prevtail, int nfound) | |
3294 | { | |
3295 | struct symbol_search **symbols, *symp, *old_next; | |
3296 | int i; | |
3297 | ||
3298 | symbols = (struct symbol_search **) xmalloc (sizeof (struct symbol_search *) | |
3299 | * nfound); | |
3300 | symp = prevtail->next; | |
3301 | for (i = 0; i < nfound; i++) | |
3302 | { | |
3303 | symbols[i] = symp; | |
3304 | symp = symp->next; | |
3305 | } | |
3306 | /* Generally NULL. */ | |
3307 | old_next = symp; | |
3308 | ||
3309 | qsort (symbols, nfound, sizeof (struct symbol_search *), | |
3310 | compare_search_syms); | |
3311 | ||
3312 | symp = prevtail; | |
3313 | for (i = 0; i < nfound; i++) | |
3314 | { | |
3315 | symp->next = symbols[i]; | |
3316 | symp = symp->next; | |
3317 | } | |
3318 | symp->next = old_next; | |
3319 | ||
8ed32cc0 | 3320 | xfree (symbols); |
434d2d4f DJ |
3321 | return symp; |
3322 | } | |
5bd98722 | 3323 | |
ccefe4c4 TT |
3324 | /* An object of this type is passed as the user_data to the |
3325 | expand_symtabs_matching method. */ | |
3326 | struct search_symbols_data | |
3327 | { | |
3328 | int nfiles; | |
3329 | char **files; | |
681bf369 JK |
3330 | |
3331 | /* It is true if PREG contains valid data, false otherwise. */ | |
3332 | unsigned preg_p : 1; | |
3333 | regex_t preg; | |
ccefe4c4 TT |
3334 | }; |
3335 | ||
3336 | /* A callback for expand_symtabs_matching. */ | |
eca864fe | 3337 | |
ccefe4c4 TT |
3338 | static int |
3339 | search_symbols_file_matches (const char *filename, void *user_data) | |
3340 | { | |
3341 | struct search_symbols_data *data = user_data; | |
433759f7 | 3342 | |
ccefe4c4 TT |
3343 | return file_matches (filename, data->files, data->nfiles); |
3344 | } | |
3345 | ||
3346 | /* A callback for expand_symtabs_matching. */ | |
eca864fe | 3347 | |
ccefe4c4 | 3348 | static int |
e078317b | 3349 | search_symbols_name_matches (const char *symname, void *user_data) |
ccefe4c4 TT |
3350 | { |
3351 | struct search_symbols_data *data = user_data; | |
433759f7 | 3352 | |
681bf369 | 3353 | return !data->preg_p || regexec (&data->preg, symname, 0, NULL, 0) == 0; |
ccefe4c4 TT |
3354 | } |
3355 | ||
c906108c SS |
3356 | /* Search the symbol table for matches to the regular expression REGEXP, |
3357 | returning the results in *MATCHES. | |
3358 | ||
3359 | Only symbols of KIND are searched: | |
e8930875 JK |
3360 | VARIABLES_DOMAIN - search all symbols, excluding functions, type names, |
3361 | and constants (enums) | |
176620f1 EZ |
3362 | FUNCTIONS_DOMAIN - search all functions |
3363 | TYPES_DOMAIN - search all type names | |
7b08b9eb | 3364 | ALL_DOMAIN - an internal error for this function |
c906108c SS |
3365 | |
3366 | free_search_symbols should be called when *MATCHES is no longer needed. | |
434d2d4f DJ |
3367 | |
3368 | The results are sorted locally; each symtab's global and static blocks are | |
c378eb4e MS |
3369 | separately alphabetized. */ |
3370 | ||
c906108c | 3371 | void |
8903c50d TT |
3372 | search_symbols (char *regexp, enum search_domain kind, |
3373 | int nfiles, char *files[], | |
fd118b61 | 3374 | struct symbol_search **matches) |
c906108c | 3375 | { |
52f0bd74 | 3376 | struct symtab *s; |
52f0bd74 | 3377 | struct blockvector *bv; |
52f0bd74 AC |
3378 | struct block *b; |
3379 | int i = 0; | |
8157b174 | 3380 | struct block_iterator iter; |
52f0bd74 | 3381 | struct symbol *sym; |
c906108c SS |
3382 | struct objfile *objfile; |
3383 | struct minimal_symbol *msymbol; | |
c906108c | 3384 | int found_misc = 0; |
bc043ef3 | 3385 | static const enum minimal_symbol_type types[] |
e8930875 | 3386 | = {mst_data, mst_text, mst_abs}; |
bc043ef3 | 3387 | static const enum minimal_symbol_type types2[] |
e8930875 | 3388 | = {mst_bss, mst_file_text, mst_abs}; |
bc043ef3 | 3389 | static const enum minimal_symbol_type types3[] |
e8930875 | 3390 | = {mst_file_data, mst_solib_trampoline, mst_abs}; |
bc043ef3 | 3391 | static const enum minimal_symbol_type types4[] |
e8930875 | 3392 | = {mst_file_bss, mst_text_gnu_ifunc, mst_abs}; |
c906108c SS |
3393 | enum minimal_symbol_type ourtype; |
3394 | enum minimal_symbol_type ourtype2; | |
3395 | enum minimal_symbol_type ourtype3; | |
3396 | enum minimal_symbol_type ourtype4; | |
3397 | struct symbol_search *sr; | |
3398 | struct symbol_search *psr; | |
3399 | struct symbol_search *tail; | |
ccefe4c4 | 3400 | struct search_symbols_data datum; |
c906108c | 3401 | |
681bf369 JK |
3402 | /* OLD_CHAIN .. RETVAL_CHAIN is always freed, RETVAL_CHAIN .. current |
3403 | CLEANUP_CHAIN is freed only in the case of an error. */ | |
3404 | struct cleanup *old_chain = make_cleanup (null_cleanup, NULL); | |
3405 | struct cleanup *retval_chain; | |
3406 | ||
e8930875 JK |
3407 | gdb_assert (kind <= TYPES_DOMAIN); |
3408 | ||
8903c50d TT |
3409 | ourtype = types[kind]; |
3410 | ourtype2 = types2[kind]; | |
3411 | ourtype3 = types3[kind]; | |
3412 | ourtype4 = types4[kind]; | |
c906108c SS |
3413 | |
3414 | sr = *matches = NULL; | |
3415 | tail = NULL; | |
681bf369 | 3416 | datum.preg_p = 0; |
c906108c SS |
3417 | |
3418 | if (regexp != NULL) | |
3419 | { | |
3420 | /* Make sure spacing is right for C++ operators. | |
3421 | This is just a courtesy to make the matching less sensitive | |
3422 | to how many spaces the user leaves between 'operator' | |
c378eb4e | 3423 | and <TYPENAME> or <OPERATOR>. */ |
c906108c SS |
3424 | char *opend; |
3425 | char *opname = operator_chars (regexp, &opend); | |
681bf369 | 3426 | int errcode; |
433759f7 | 3427 | |
c906108c | 3428 | if (*opname) |
c5aa993b | 3429 | { |
3e43a32a MS |
3430 | int fix = -1; /* -1 means ok; otherwise number of |
3431 | spaces needed. */ | |
433759f7 | 3432 | |
c5aa993b JM |
3433 | if (isalpha (*opname) || *opname == '_' || *opname == '$') |
3434 | { | |
c378eb4e | 3435 | /* There should 1 space between 'operator' and 'TYPENAME'. */ |
c5aa993b JM |
3436 | if (opname[-1] != ' ' || opname[-2] == ' ') |
3437 | fix = 1; | |
3438 | } | |
3439 | else | |
3440 | { | |
c378eb4e | 3441 | /* There should 0 spaces between 'operator' and 'OPERATOR'. */ |
c5aa993b JM |
3442 | if (opname[-1] == ' ') |
3443 | fix = 0; | |
3444 | } | |
c378eb4e | 3445 | /* If wrong number of spaces, fix it. */ |
c5aa993b JM |
3446 | if (fix >= 0) |
3447 | { | |
045f55a6 | 3448 | char *tmp = (char *) alloca (8 + fix + strlen (opname) + 1); |
433759f7 | 3449 | |
c5aa993b JM |
3450 | sprintf (tmp, "operator%.*s%s", fix, " ", opname); |
3451 | regexp = tmp; | |
3452 | } | |
3453 | } | |
3454 | ||
559a7a62 JK |
3455 | errcode = regcomp (&datum.preg, regexp, |
3456 | REG_NOSUB | (case_sensitivity == case_sensitive_off | |
3457 | ? REG_ICASE : 0)); | |
681bf369 JK |
3458 | if (errcode != 0) |
3459 | { | |
3460 | char *err = get_regcomp_error (errcode, &datum.preg); | |
3461 | ||
3462 | make_cleanup (xfree, err); | |
3463 | error (_("Invalid regexp (%s): %s"), err, regexp); | |
3464 | } | |
3465 | datum.preg_p = 1; | |
3466 | make_regfree_cleanup (&datum.preg); | |
c906108c SS |
3467 | } |
3468 | ||
3469 | /* Search through the partial symtabs *first* for all symbols | |
3470 | matching the regexp. That way we don't have to reproduce all of | |
c378eb4e | 3471 | the machinery below. */ |
c906108c | 3472 | |
ccefe4c4 TT |
3473 | datum.nfiles = nfiles; |
3474 | datum.files = files; | |
ccefe4c4 | 3475 | ALL_OBJFILES (objfile) |
c5aa993b | 3476 | { |
ccefe4c4 TT |
3477 | if (objfile->sf) |
3478 | objfile->sf->qf->expand_symtabs_matching (objfile, | |
71cddcc1 DE |
3479 | (nfiles == 0 |
3480 | ? NULL | |
3481 | : search_symbols_file_matches), | |
ccefe4c4 TT |
3482 | search_symbols_name_matches, |
3483 | kind, | |
3484 | &datum); | |
c5aa993b | 3485 | } |
c906108c | 3486 | |
681bf369 JK |
3487 | retval_chain = old_chain; |
3488 | ||
c906108c SS |
3489 | /* Here, we search through the minimal symbol tables for functions |
3490 | and variables that match, and force their symbols to be read. | |
3491 | This is in particular necessary for demangled variable names, | |
3492 | which are no longer put into the partial symbol tables. | |
3493 | The symbol will then be found during the scan of symtabs below. | |
3494 | ||
3495 | For functions, find_pc_symtab should succeed if we have debug info | |
422d65e7 DE |
3496 | for the function, for variables we have to call |
3497 | lookup_symbol_in_objfile_from_linkage_name to determine if the variable | |
3498 | has debug info. | |
c906108c | 3499 | If the lookup fails, set found_misc so that we will rescan to print |
422d65e7 DE |
3500 | any matching symbols without debug info. |
3501 | We only search the objfile the msymbol came from, we no longer search | |
3502 | all objfiles. In large programs (1000s of shared libs) searching all | |
3503 | objfiles is not worth the pain. */ | |
c906108c | 3504 | |
176620f1 | 3505 | if (nfiles == 0 && (kind == VARIABLES_DOMAIN || kind == FUNCTIONS_DOMAIN)) |
c906108c SS |
3506 | { |
3507 | ALL_MSYMBOLS (objfile, msymbol) | |
c5aa993b | 3508 | { |
89295b4d PP |
3509 | QUIT; |
3510 | ||
422d65e7 DE |
3511 | if (msymbol->created_by_gdb) |
3512 | continue; | |
3513 | ||
d50bd42b DE |
3514 | if (MSYMBOL_TYPE (msymbol) == ourtype |
3515 | || MSYMBOL_TYPE (msymbol) == ourtype2 | |
3516 | || MSYMBOL_TYPE (msymbol) == ourtype3 | |
3517 | || MSYMBOL_TYPE (msymbol) == ourtype4) | |
c5aa993b | 3518 | { |
681bf369 JK |
3519 | if (!datum.preg_p |
3520 | || regexec (&datum.preg, SYMBOL_NATURAL_NAME (msymbol), 0, | |
3521 | NULL, 0) == 0) | |
c5aa993b | 3522 | { |
422d65e7 DE |
3523 | /* Note: An important side-effect of these lookup functions |
3524 | is to expand the symbol table if msymbol is found, for the | |
3525 | benefit of the next loop on ALL_PRIMARY_SYMTABS. */ | |
3526 | if (kind == FUNCTIONS_DOMAIN | |
3527 | ? find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol)) == NULL | |
3528 | : (lookup_symbol_in_objfile_from_linkage_name | |
3529 | (objfile, SYMBOL_LINKAGE_NAME (msymbol), VAR_DOMAIN) | |
3530 | == NULL)) | |
3531 | found_misc = 1; | |
c5aa993b JM |
3532 | } |
3533 | } | |
3534 | } | |
c906108c SS |
3535 | } |
3536 | ||
11309657 | 3537 | ALL_PRIMARY_SYMTABS (objfile, s) |
c5aa993b JM |
3538 | { |
3539 | bv = BLOCKVECTOR (s); | |
d50bd42b DE |
3540 | for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++) |
3541 | { | |
3542 | struct symbol_search *prevtail = tail; | |
3543 | int nfound = 0; | |
433759f7 | 3544 | |
d50bd42b DE |
3545 | b = BLOCKVECTOR_BLOCK (bv, i); |
3546 | ALL_BLOCK_SYMBOLS (b, iter, sym) | |
3547 | { | |
3548 | struct symtab *real_symtab = SYMBOL_SYMTAB (sym); | |
3549 | ||
3550 | QUIT; | |
3551 | ||
3552 | if (file_matches (real_symtab->filename, files, nfiles) | |
3553 | && ((!datum.preg_p | |
3554 | || regexec (&datum.preg, SYMBOL_NATURAL_NAME (sym), 0, | |
3555 | NULL, 0) == 0) | |
3556 | && ((kind == VARIABLES_DOMAIN | |
3557 | && SYMBOL_CLASS (sym) != LOC_TYPEDEF | |
3558 | && SYMBOL_CLASS (sym) != LOC_UNRESOLVED | |
3559 | && SYMBOL_CLASS (sym) != LOC_BLOCK | |
3560 | /* LOC_CONST can be used for more than just enums, | |
3561 | e.g., c++ static const members. | |
3562 | We only want to skip enums here. */ | |
3563 | && !(SYMBOL_CLASS (sym) == LOC_CONST | |
3564 | && TYPE_CODE (SYMBOL_TYPE (sym)) | |
3565 | == TYPE_CODE_ENUM)) | |
3566 | || (kind == FUNCTIONS_DOMAIN | |
3567 | && SYMBOL_CLASS (sym) == LOC_BLOCK) | |
3568 | || (kind == TYPES_DOMAIN | |
3569 | && SYMBOL_CLASS (sym) == LOC_TYPEDEF)))) | |
3570 | { | |
3571 | /* match */ | |
3572 | psr = (struct symbol_search *) | |
3573 | xmalloc (sizeof (struct symbol_search)); | |
3574 | psr->block = i; | |
3575 | psr->symtab = real_symtab; | |
3576 | psr->symbol = sym; | |
3577 | psr->msymbol = NULL; | |
3578 | psr->next = NULL; | |
3579 | if (tail == NULL) | |
3580 | sr = psr; | |
3581 | else | |
3582 | tail->next = psr; | |
3583 | tail = psr; | |
3584 | nfound ++; | |
3585 | } | |
3586 | } | |
3587 | if (nfound > 0) | |
3588 | { | |
3589 | if (prevtail == NULL) | |
3590 | { | |
3591 | struct symbol_search dummy; | |
434d2d4f | 3592 | |
d50bd42b DE |
3593 | dummy.next = sr; |
3594 | tail = sort_search_symbols (&dummy, nfound); | |
3595 | sr = dummy.next; | |
434d2d4f | 3596 | |
d50bd42b DE |
3597 | make_cleanup_free_search_symbols (sr); |
3598 | } | |
3599 | else | |
3600 | tail = sort_search_symbols (prevtail, nfound); | |
3601 | } | |
3602 | } | |
c5aa993b | 3603 | } |
c906108c SS |
3604 | |
3605 | /* If there are no eyes, avoid all contact. I mean, if there are | |
3606 | no debug symbols, then print directly from the msymbol_vector. */ | |
3607 | ||
422d65e7 | 3608 | if (found_misc || (nfiles == 0 && kind != FUNCTIONS_DOMAIN)) |
c906108c SS |
3609 | { |
3610 | ALL_MSYMBOLS (objfile, msymbol) | |
c5aa993b | 3611 | { |
89295b4d PP |
3612 | QUIT; |
3613 | ||
422d65e7 DE |
3614 | if (msymbol->created_by_gdb) |
3615 | continue; | |
3616 | ||
d50bd42b DE |
3617 | if (MSYMBOL_TYPE (msymbol) == ourtype |
3618 | || MSYMBOL_TYPE (msymbol) == ourtype2 | |
3619 | || MSYMBOL_TYPE (msymbol) == ourtype3 | |
3620 | || MSYMBOL_TYPE (msymbol) == ourtype4) | |
c5aa993b | 3621 | { |
681bf369 JK |
3622 | if (!datum.preg_p |
3623 | || regexec (&datum.preg, SYMBOL_NATURAL_NAME (msymbol), 0, | |
3624 | NULL, 0) == 0) | |
c5aa993b | 3625 | { |
422d65e7 DE |
3626 | /* For functions we can do a quick check of whether the |
3627 | symbol might be found via find_pc_symtab. */ | |
3628 | if (kind != FUNCTIONS_DOMAIN | |
3629 | || find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol)) == NULL) | |
c5aa993b | 3630 | { |
422d65e7 DE |
3631 | if (lookup_symbol_in_objfile_from_linkage_name |
3632 | (objfile, SYMBOL_LINKAGE_NAME (msymbol), VAR_DOMAIN) | |
3633 | == NULL) | |
c5aa993b JM |
3634 | { |
3635 | /* match */ | |
3e43a32a MS |
3636 | psr = (struct symbol_search *) |
3637 | xmalloc (sizeof (struct symbol_search)); | |
c5aa993b JM |
3638 | psr->block = i; |
3639 | psr->msymbol = msymbol; | |
3640 | psr->symtab = NULL; | |
3641 | psr->symbol = NULL; | |
3642 | psr->next = NULL; | |
3643 | if (tail == NULL) | |
3644 | { | |
3645 | sr = psr; | |
681bf369 | 3646 | make_cleanup_free_search_symbols (sr); |
c5aa993b JM |
3647 | } |
3648 | else | |
3649 | tail->next = psr; | |
3650 | tail = psr; | |
3651 | } | |
3652 | } | |
3653 | } | |
3654 | } | |
3655 | } | |
c906108c SS |
3656 | } |
3657 | ||
681bf369 JK |
3658 | discard_cleanups (retval_chain); |
3659 | do_cleanups (old_chain); | |
c906108c | 3660 | *matches = sr; |
c906108c SS |
3661 | } |
3662 | ||
3663 | /* Helper function for symtab_symbol_info, this function uses | |
3664 | the data returned from search_symbols() to print information | |
c378eb4e MS |
3665 | regarding the match to gdb_stdout. */ |
3666 | ||
c906108c | 3667 | static void |
8903c50d TT |
3668 | print_symbol_info (enum search_domain kind, |
3669 | struct symtab *s, struct symbol *sym, | |
fba45db2 | 3670 | int block, char *last) |
c906108c | 3671 | { |
0ba1096a | 3672 | if (last == NULL || filename_cmp (last, s->filename) != 0) |
c906108c SS |
3673 | { |
3674 | fputs_filtered ("\nFile ", gdb_stdout); | |
3675 | fputs_filtered (s->filename, gdb_stdout); | |
3676 | fputs_filtered (":\n", gdb_stdout); | |
3677 | } | |
3678 | ||
176620f1 | 3679 | if (kind != TYPES_DOMAIN && block == STATIC_BLOCK) |
c906108c | 3680 | printf_filtered ("static "); |
c5aa993b | 3681 | |
c378eb4e | 3682 | /* Typedef that is not a C++ class. */ |
176620f1 EZ |
3683 | if (kind == TYPES_DOMAIN |
3684 | && SYMBOL_DOMAIN (sym) != STRUCT_DOMAIN) | |
a5238fbc | 3685 | typedef_print (SYMBOL_TYPE (sym), sym, gdb_stdout); |
c378eb4e | 3686 | /* variable, func, or typedef-that-is-c++-class. */ |
d50bd42b DE |
3687 | else if (kind < TYPES_DOMAIN |
3688 | || (kind == TYPES_DOMAIN | |
3689 | && SYMBOL_DOMAIN (sym) == STRUCT_DOMAIN)) | |
c906108c SS |
3690 | { |
3691 | type_print (SYMBOL_TYPE (sym), | |
c5aa993b | 3692 | (SYMBOL_CLASS (sym) == LOC_TYPEDEF |
de5ad195 | 3693 | ? "" : SYMBOL_PRINT_NAME (sym)), |
c5aa993b | 3694 | gdb_stdout, 0); |
c906108c SS |
3695 | |
3696 | printf_filtered (";\n"); | |
3697 | } | |
c906108c SS |
3698 | } |
3699 | ||
3700 | /* This help function for symtab_symbol_info() prints information | |
c378eb4e MS |
3701 | for non-debugging symbols to gdb_stdout. */ |
3702 | ||
c906108c | 3703 | static void |
fba45db2 | 3704 | print_msymbol_info (struct minimal_symbol *msymbol) |
c906108c | 3705 | { |
d80b854b | 3706 | struct gdbarch *gdbarch = get_objfile_arch (msymbol_objfile (msymbol)); |
3ac4495a MS |
3707 | char *tmp; |
3708 | ||
d80b854b | 3709 | if (gdbarch_addr_bit (gdbarch) <= 32) |
bb599908 PH |
3710 | tmp = hex_string_custom (SYMBOL_VALUE_ADDRESS (msymbol) |
3711 | & (CORE_ADDR) 0xffffffff, | |
3712 | 8); | |
3ac4495a | 3713 | else |
bb599908 PH |
3714 | tmp = hex_string_custom (SYMBOL_VALUE_ADDRESS (msymbol), |
3715 | 16); | |
3ac4495a | 3716 | printf_filtered ("%s %s\n", |
de5ad195 | 3717 | tmp, SYMBOL_PRINT_NAME (msymbol)); |
c906108c SS |
3718 | } |
3719 | ||
3720 | /* This is the guts of the commands "info functions", "info types", and | |
c378eb4e | 3721 | "info variables". It calls search_symbols to find all matches and then |
c906108c | 3722 | print_[m]symbol_info to print out some useful information about the |
c378eb4e MS |
3723 | matches. */ |
3724 | ||
c906108c | 3725 | static void |
8903c50d | 3726 | symtab_symbol_info (char *regexp, enum search_domain kind, int from_tty) |
c906108c | 3727 | { |
bc043ef3 | 3728 | static const char * const classnames[] = |
e8930875 | 3729 | {"variable", "function", "type"}; |
c906108c SS |
3730 | struct symbol_search *symbols; |
3731 | struct symbol_search *p; | |
3732 | struct cleanup *old_chain; | |
3733 | char *last_filename = NULL; | |
3734 | int first = 1; | |
3735 | ||
e8930875 JK |
3736 | gdb_assert (kind <= TYPES_DOMAIN); |
3737 | ||
c378eb4e | 3738 | /* Must make sure that if we're interrupted, symbols gets freed. */ |
c906108c | 3739 | search_symbols (regexp, kind, 0, (char **) NULL, &symbols); |
5bd98722 | 3740 | old_chain = make_cleanup_free_search_symbols (symbols); |
c906108c SS |
3741 | |
3742 | printf_filtered (regexp | |
c5aa993b JM |
3743 | ? "All %ss matching regular expression \"%s\":\n" |
3744 | : "All defined %ss:\n", | |
8903c50d | 3745 | classnames[kind], regexp); |
c906108c SS |
3746 | |
3747 | for (p = symbols; p != NULL; p = p->next) | |
3748 | { | |
3749 | QUIT; | |
3750 | ||
3751 | if (p->msymbol != NULL) | |
c5aa993b JM |
3752 | { |
3753 | if (first) | |
3754 | { | |
3755 | printf_filtered ("\nNon-debugging symbols:\n"); | |
3756 | first = 0; | |
3757 | } | |
3758 | print_msymbol_info (p->msymbol); | |
3759 | } | |
c906108c | 3760 | else |
c5aa993b JM |
3761 | { |
3762 | print_symbol_info (kind, | |
3763 | p->symtab, | |
3764 | p->symbol, | |
3765 | p->block, | |
3766 | last_filename); | |
3767 | last_filename = p->symtab->filename; | |
3768 | } | |
c906108c SS |
3769 | } |
3770 | ||
3771 | do_cleanups (old_chain); | |
3772 | } | |
3773 | ||
3774 | static void | |
fba45db2 | 3775 | variables_info (char *regexp, int from_tty) |
c906108c | 3776 | { |
176620f1 | 3777 | symtab_symbol_info (regexp, VARIABLES_DOMAIN, from_tty); |
c906108c SS |
3778 | } |
3779 | ||
3780 | static void | |
fba45db2 | 3781 | functions_info (char *regexp, int from_tty) |
c906108c | 3782 | { |
176620f1 | 3783 | symtab_symbol_info (regexp, FUNCTIONS_DOMAIN, from_tty); |
c906108c SS |
3784 | } |
3785 | ||
357e46e7 | 3786 | |
c906108c | 3787 | static void |
fba45db2 | 3788 | types_info (char *regexp, int from_tty) |
c906108c | 3789 | { |
176620f1 | 3790 | symtab_symbol_info (regexp, TYPES_DOMAIN, from_tty); |
c906108c SS |
3791 | } |
3792 | ||
c378eb4e | 3793 | /* Breakpoint all functions matching regular expression. */ |
8926118c | 3794 | |
8b93c638 | 3795 | void |
fba45db2 | 3796 | rbreak_command_wrapper (char *regexp, int from_tty) |
8b93c638 JM |
3797 | { |
3798 | rbreak_command (regexp, from_tty); | |
3799 | } | |
8926118c | 3800 | |
95a42b64 TT |
3801 | /* A cleanup function that calls end_rbreak_breakpoints. */ |
3802 | ||
3803 | static void | |
3804 | do_end_rbreak_breakpoints (void *ignore) | |
3805 | { | |
3806 | end_rbreak_breakpoints (); | |
3807 | } | |
3808 | ||
c906108c | 3809 | static void |
fba45db2 | 3810 | rbreak_command (char *regexp, int from_tty) |
c906108c SS |
3811 | { |
3812 | struct symbol_search *ss; | |
3813 | struct symbol_search *p; | |
3814 | struct cleanup *old_chain; | |
95a42b64 TT |
3815 | char *string = NULL; |
3816 | int len = 0; | |
9c1e305a | 3817 | char **files = NULL, *file_name; |
8bd10a10 | 3818 | int nfiles = 0; |
c906108c | 3819 | |
8bd10a10 CM |
3820 | if (regexp) |
3821 | { | |
3822 | char *colon = strchr (regexp, ':'); | |
433759f7 | 3823 | |
8bd10a10 CM |
3824 | if (colon && *(colon + 1) != ':') |
3825 | { | |
3826 | int colon_index; | |
8bd10a10 CM |
3827 | |
3828 | colon_index = colon - regexp; | |
3829 | file_name = alloca (colon_index + 1); | |
3830 | memcpy (file_name, regexp, colon_index); | |
3831 | file_name[colon_index--] = 0; | |
3832 | while (isspace (file_name[colon_index])) | |
3833 | file_name[colon_index--] = 0; | |
3834 | files = &file_name; | |
3835 | nfiles = 1; | |
3836 | regexp = colon + 1; | |
3837 | while (isspace (*regexp)) regexp++; | |
3838 | } | |
3839 | } | |
3840 | ||
3841 | search_symbols (regexp, FUNCTIONS_DOMAIN, nfiles, files, &ss); | |
5bd98722 | 3842 | old_chain = make_cleanup_free_search_symbols (ss); |
95a42b64 | 3843 | make_cleanup (free_current_contents, &string); |
c906108c | 3844 | |
95a42b64 TT |
3845 | start_rbreak_breakpoints (); |
3846 | make_cleanup (do_end_rbreak_breakpoints, NULL); | |
c906108c SS |
3847 | for (p = ss; p != NULL; p = p->next) |
3848 | { | |
3849 | if (p->msymbol == NULL) | |
c5aa993b | 3850 | { |
95a42b64 TT |
3851 | int newlen = (strlen (p->symtab->filename) |
3852 | + strlen (SYMBOL_LINKAGE_NAME (p->symbol)) | |
3853 | + 4); | |
433759f7 | 3854 | |
95a42b64 TT |
3855 | if (newlen > len) |
3856 | { | |
3857 | string = xrealloc (string, newlen); | |
3858 | len = newlen; | |
3859 | } | |
c5aa993b JM |
3860 | strcpy (string, p->symtab->filename); |
3861 | strcat (string, ":'"); | |
2335f48e | 3862 | strcat (string, SYMBOL_LINKAGE_NAME (p->symbol)); |
c5aa993b JM |
3863 | strcat (string, "'"); |
3864 | break_command (string, from_tty); | |
176620f1 | 3865 | print_symbol_info (FUNCTIONS_DOMAIN, |
c5aa993b JM |
3866 | p->symtab, |
3867 | p->symbol, | |
3868 | p->block, | |
3869 | p->symtab->filename); | |
3870 | } | |
c906108c | 3871 | else |
c5aa993b | 3872 | { |
433759f7 MS |
3873 | int newlen = (strlen (SYMBOL_LINKAGE_NAME (p->msymbol)) + 3); |
3874 | ||
95a42b64 TT |
3875 | if (newlen > len) |
3876 | { | |
3877 | string = xrealloc (string, newlen); | |
3878 | len = newlen; | |
3879 | } | |
6214f497 DJ |
3880 | strcpy (string, "'"); |
3881 | strcat (string, SYMBOL_LINKAGE_NAME (p->msymbol)); | |
3882 | strcat (string, "'"); | |
3883 | ||
3884 | break_command (string, from_tty); | |
c5aa993b | 3885 | printf_filtered ("<function, no debug info> %s;\n", |
de5ad195 | 3886 | SYMBOL_PRINT_NAME (p->msymbol)); |
c5aa993b | 3887 | } |
c906108c SS |
3888 | } |
3889 | ||
3890 | do_cleanups (old_chain); | |
3891 | } | |
c906108c | 3892 | \f |
c5aa993b | 3893 | |
1976171a JK |
3894 | /* Evaluate if NAME matches SYM_TEXT and SYM_TEXT_LEN. |
3895 | ||
3896 | Either sym_text[sym_text_len] != '(' and then we search for any | |
3897 | symbol starting with SYM_TEXT text. | |
3898 | ||
3899 | Otherwise sym_text[sym_text_len] == '(' and then we require symbol name to | |
3900 | be terminated at that point. Partial symbol tables do not have parameters | |
3901 | information. */ | |
3902 | ||
3903 | static int | |
3904 | compare_symbol_name (const char *name, const char *sym_text, int sym_text_len) | |
3905 | { | |
3906 | int (*ncmp) (const char *, const char *, size_t); | |
3907 | ||
3908 | ncmp = (case_sensitivity == case_sensitive_on ? strncmp : strncasecmp); | |
3909 | ||
3910 | if (ncmp (name, sym_text, sym_text_len) != 0) | |
3911 | return 0; | |
3912 | ||
3913 | if (sym_text[sym_text_len] == '(') | |
3914 | { | |
3915 | /* User searches for `name(someth...'. Require NAME to be terminated. | |
3916 | Normally psymtabs and gdbindex have no parameter types so '\0' will be | |
3917 | present but accept even parameters presence. In this case this | |
3918 | function is in fact strcmp_iw but whitespace skipping is not supported | |
3919 | for tab completion. */ | |
3920 | ||
3921 | if (name[sym_text_len] != '\0' && name[sym_text_len] != '(') | |
3922 | return 0; | |
3923 | } | |
3924 | ||
3925 | return 1; | |
3926 | } | |
3927 | ||
821296b7 SA |
3928 | /* Free any memory associated with a completion list. */ |
3929 | ||
3930 | static void | |
49c4e619 | 3931 | free_completion_list (VEC (char_ptr) **list_ptr) |
821296b7 | 3932 | { |
49c4e619 TT |
3933 | int i; |
3934 | char *p; | |
821296b7 | 3935 | |
49c4e619 TT |
3936 | for (i = 0; VEC_iterate (char_ptr, *list_ptr, i, p); ++i) |
3937 | xfree (p); | |
3938 | VEC_free (char_ptr, *list_ptr); | |
821296b7 SA |
3939 | } |
3940 | ||
3941 | /* Callback for make_cleanup. */ | |
3942 | ||
3943 | static void | |
3944 | do_free_completion_list (void *list) | |
3945 | { | |
3946 | free_completion_list (list); | |
3947 | } | |
3948 | ||
c906108c SS |
3949 | /* Helper routine for make_symbol_completion_list. */ |
3950 | ||
49c4e619 | 3951 | static VEC (char_ptr) *return_val; |
c906108c SS |
3952 | |
3953 | #define COMPLETION_LIST_ADD_SYMBOL(symbol, sym_text, len, text, word) \ | |
c906108c | 3954 | completion_list_add_name \ |
2335f48e | 3955 | (SYMBOL_NATURAL_NAME (symbol), (sym_text), (len), (text), (word)) |
c906108c SS |
3956 | |
3957 | /* Test to see if the symbol specified by SYMNAME (which is already | |
c5aa993b | 3958 | demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN |
c378eb4e | 3959 | characters. If so, add it to the current completion list. */ |
c906108c SS |
3960 | |
3961 | static void | |
0d5cff50 DE |
3962 | completion_list_add_name (const char *symname, |
3963 | const char *sym_text, int sym_text_len, | |
3964 | const char *text, const char *word) | |
c906108c SS |
3965 | { |
3966 | int newsize; | |
c906108c | 3967 | |
c378eb4e | 3968 | /* Clip symbols that cannot match. */ |
1976171a JK |
3969 | if (!compare_symbol_name (symname, sym_text, sym_text_len)) |
3970 | return; | |
c906108c | 3971 | |
c906108c | 3972 | /* We have a match for a completion, so add SYMNAME to the current list |
c378eb4e | 3973 | of matches. Note that the name is moved to freshly malloc'd space. */ |
c906108c SS |
3974 | |
3975 | { | |
3976 | char *new; | |
433759f7 | 3977 | |
c906108c SS |
3978 | if (word == sym_text) |
3979 | { | |
3980 | new = xmalloc (strlen (symname) + 5); | |
3981 | strcpy (new, symname); | |
3982 | } | |
3983 | else if (word > sym_text) | |
3984 | { | |
3985 | /* Return some portion of symname. */ | |
3986 | new = xmalloc (strlen (symname) + 5); | |
3987 | strcpy (new, symname + (word - sym_text)); | |
3988 | } | |
3989 | else | |
3990 | { | |
3991 | /* Return some of SYM_TEXT plus symname. */ | |
3992 | new = xmalloc (strlen (symname) + (sym_text - word) + 5); | |
3993 | strncpy (new, word, sym_text - word); | |
3994 | new[sym_text - word] = '\0'; | |
3995 | strcat (new, symname); | |
3996 | } | |
3997 | ||
49c4e619 | 3998 | VEC_safe_push (char_ptr, return_val, new); |
c906108c SS |
3999 | } |
4000 | } | |
4001 | ||
69636828 AF |
4002 | /* ObjC: In case we are completing on a selector, look as the msymbol |
4003 | again and feed all the selectors into the mill. */ | |
4004 | ||
4005 | static void | |
0d5cff50 DE |
4006 | completion_list_objc_symbol (struct minimal_symbol *msymbol, |
4007 | const char *sym_text, int sym_text_len, | |
4008 | const char *text, const char *word) | |
69636828 AF |
4009 | { |
4010 | static char *tmp = NULL; | |
4011 | static unsigned int tmplen = 0; | |
9af17804 | 4012 | |
0d5cff50 | 4013 | const char *method, *category, *selector; |
69636828 | 4014 | char *tmp2 = NULL; |
9af17804 | 4015 | |
69636828 AF |
4016 | method = SYMBOL_NATURAL_NAME (msymbol); |
4017 | ||
4018 | /* Is it a method? */ | |
4019 | if ((method[0] != '-') && (method[0] != '+')) | |
4020 | return; | |
4021 | ||
4022 | if (sym_text[0] == '[') | |
4023 | /* Complete on shortened method method. */ | |
4024 | completion_list_add_name (method + 1, sym_text, sym_text_len, text, word); | |
9af17804 | 4025 | |
69636828 AF |
4026 | while ((strlen (method) + 1) >= tmplen) |
4027 | { | |
4028 | if (tmplen == 0) | |
4029 | tmplen = 1024; | |
4030 | else | |
4031 | tmplen *= 2; | |
4032 | tmp = xrealloc (tmp, tmplen); | |
4033 | } | |
4034 | selector = strchr (method, ' '); | |
4035 | if (selector != NULL) | |
4036 | selector++; | |
9af17804 | 4037 | |
69636828 | 4038 | category = strchr (method, '('); |
9af17804 | 4039 | |
69636828 AF |
4040 | if ((category != NULL) && (selector != NULL)) |
4041 | { | |
4042 | memcpy (tmp, method, (category - method)); | |
4043 | tmp[category - method] = ' '; | |
4044 | memcpy (tmp + (category - method) + 1, selector, strlen (selector) + 1); | |
4045 | completion_list_add_name (tmp, sym_text, sym_text_len, text, word); | |
4046 | if (sym_text[0] == '[') | |
4047 | completion_list_add_name (tmp + 1, sym_text, sym_text_len, text, word); | |
4048 | } | |
9af17804 | 4049 | |
69636828 AF |
4050 | if (selector != NULL) |
4051 | { | |
4052 | /* Complete on selector only. */ | |
4053 | strcpy (tmp, selector); | |
4054 | tmp2 = strchr (tmp, ']'); | |
4055 | if (tmp2 != NULL) | |
4056 | *tmp2 = '\0'; | |
9af17804 | 4057 | |
69636828 AF |
4058 | completion_list_add_name (tmp, sym_text, sym_text_len, text, word); |
4059 | } | |
4060 | } | |
4061 | ||
4062 | /* Break the non-quoted text based on the characters which are in | |
c378eb4e | 4063 | symbols. FIXME: This should probably be language-specific. */ |
69636828 AF |
4064 | |
4065 | static char * | |
4066 | language_search_unquoted_string (char *text, char *p) | |
4067 | { | |
4068 | for (; p > text; --p) | |
4069 | { | |
4070 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0') | |
4071 | continue; | |
4072 | else | |
4073 | { | |
4074 | if ((current_language->la_language == language_objc)) | |
4075 | { | |
c378eb4e | 4076 | if (p[-1] == ':') /* Might be part of a method name. */ |
69636828 AF |
4077 | continue; |
4078 | else if (p[-1] == '[' && (p[-2] == '-' || p[-2] == '+')) | |
c378eb4e | 4079 | p -= 2; /* Beginning of a method name. */ |
69636828 | 4080 | else if (p[-1] == ' ' || p[-1] == '(' || p[-1] == ')') |
c378eb4e | 4081 | { /* Might be part of a method name. */ |
69636828 AF |
4082 | char *t = p; |
4083 | ||
4084 | /* Seeing a ' ' or a '(' is not conclusive evidence | |
4085 | that we are in the middle of a method name. However, | |
4086 | finding "-[" or "+[" should be pretty un-ambiguous. | |
4087 | Unfortunately we have to find it now to decide. */ | |
4088 | ||
4089 | while (t > text) | |
4090 | if (isalnum (t[-1]) || t[-1] == '_' || | |
4091 | t[-1] == ' ' || t[-1] == ':' || | |
4092 | t[-1] == '(' || t[-1] == ')') | |
4093 | --t; | |
4094 | else | |
4095 | break; | |
4096 | ||
4097 | if (t[-1] == '[' && (t[-2] == '-' || t[-2] == '+')) | |
c378eb4e MS |
4098 | p = t - 2; /* Method name detected. */ |
4099 | /* Else we leave with p unchanged. */ | |
69636828 AF |
4100 | } |
4101 | } | |
4102 | break; | |
4103 | } | |
4104 | } | |
4105 | return p; | |
4106 | } | |
4107 | ||
edb3359d DJ |
4108 | static void |
4109 | completion_list_add_fields (struct symbol *sym, char *sym_text, | |
4110 | int sym_text_len, char *text, char *word) | |
4111 | { | |
4112 | if (SYMBOL_CLASS (sym) == LOC_TYPEDEF) | |
4113 | { | |
4114 | struct type *t = SYMBOL_TYPE (sym); | |
4115 | enum type_code c = TYPE_CODE (t); | |
4116 | int j; | |
4117 | ||
4118 | if (c == TYPE_CODE_UNION || c == TYPE_CODE_STRUCT) | |
4119 | for (j = TYPE_N_BASECLASSES (t); j < TYPE_NFIELDS (t); j++) | |
4120 | if (TYPE_FIELD_NAME (t, j)) | |
4121 | completion_list_add_name (TYPE_FIELD_NAME (t, j), | |
4122 | sym_text, sym_text_len, text, word); | |
4123 | } | |
4124 | } | |
4125 | ||
ccefe4c4 | 4126 | /* Type of the user_data argument passed to add_macro_name or |
7b08b9eb | 4127 | expand_partial_symbol_name. The contents are simply whatever is |
ccefe4c4 TT |
4128 | needed by completion_list_add_name. */ |
4129 | struct add_name_data | |
9a044a89 TT |
4130 | { |
4131 | char *sym_text; | |
4132 | int sym_text_len; | |
4133 | char *text; | |
4134 | char *word; | |
4135 | }; | |
4136 | ||
4137 | /* A callback used with macro_for_each and macro_for_each_in_scope. | |
4138 | This adds a macro's name to the current completion list. */ | |
eca864fe | 4139 | |
9a044a89 TT |
4140 | static void |
4141 | add_macro_name (const char *name, const struct macro_definition *ignore, | |
9b158ba0 | 4142 | struct macro_source_file *ignore2, int ignore3, |
9a044a89 TT |
4143 | void *user_data) |
4144 | { | |
ccefe4c4 | 4145 | struct add_name_data *datum = (struct add_name_data *) user_data; |
433759f7 | 4146 | |
ccefe4c4 TT |
4147 | completion_list_add_name ((char *) name, |
4148 | datum->sym_text, datum->sym_text_len, | |
4149 | datum->text, datum->word); | |
4150 | } | |
4151 | ||
7b08b9eb | 4152 | /* A callback for expand_partial_symbol_names. */ |
eca864fe | 4153 | |
7b08b9eb | 4154 | static int |
e078317b | 4155 | expand_partial_symbol_name (const char *name, void *user_data) |
ccefe4c4 TT |
4156 | { |
4157 | struct add_name_data *datum = (struct add_name_data *) user_data; | |
165195f4 | 4158 | |
1976171a | 4159 | return compare_symbol_name (name, datum->sym_text, datum->sym_text_len); |
9a044a89 TT |
4160 | } |
4161 | ||
49c4e619 | 4162 | VEC (char_ptr) * |
f55ee35c JK |
4163 | default_make_symbol_completion_list_break_on (char *text, char *word, |
4164 | const char *break_on) | |
c906108c | 4165 | { |
41d27058 JB |
4166 | /* Problem: All of the symbols have to be copied because readline |
4167 | frees them. I'm not going to worry about this; hopefully there | |
4168 | won't be that many. */ | |
4169 | ||
de4f826b DC |
4170 | struct symbol *sym; |
4171 | struct symtab *s; | |
de4f826b DC |
4172 | struct minimal_symbol *msymbol; |
4173 | struct objfile *objfile; | |
edb3359d DJ |
4174 | struct block *b; |
4175 | const struct block *surrounding_static_block, *surrounding_global_block; | |
8157b174 | 4176 | struct block_iterator iter; |
c906108c SS |
4177 | /* The symbol we are completing on. Points in same buffer as text. */ |
4178 | char *sym_text; | |
4179 | /* Length of sym_text. */ | |
4180 | int sym_text_len; | |
ccefe4c4 | 4181 | struct add_name_data datum; |
821296b7 | 4182 | struct cleanup *back_to; |
c906108c | 4183 | |
41d27058 | 4184 | /* Now look for the symbol we are supposed to complete on. */ |
c906108c SS |
4185 | { |
4186 | char *p; | |
4187 | char quote_found; | |
4188 | char *quote_pos = NULL; | |
4189 | ||
4190 | /* First see if this is a quoted string. */ | |
4191 | quote_found = '\0'; | |
4192 | for (p = text; *p != '\0'; ++p) | |
4193 | { | |
4194 | if (quote_found != '\0') | |
4195 | { | |
4196 | if (*p == quote_found) | |
4197 | /* Found close quote. */ | |
4198 | quote_found = '\0'; | |
4199 | else if (*p == '\\' && p[1] == quote_found) | |
4200 | /* A backslash followed by the quote character | |
c5aa993b | 4201 | doesn't end the string. */ |
c906108c SS |
4202 | ++p; |
4203 | } | |
4204 | else if (*p == '\'' || *p == '"') | |
4205 | { | |
4206 | quote_found = *p; | |
4207 | quote_pos = p; | |
4208 | } | |
4209 | } | |
4210 | if (quote_found == '\'') | |
4211 | /* A string within single quotes can be a symbol, so complete on it. */ | |
4212 | sym_text = quote_pos + 1; | |
4213 | else if (quote_found == '"') | |
4214 | /* A double-quoted string is never a symbol, nor does it make sense | |
c5aa993b | 4215 | to complete it any other way. */ |
c94fdfd0 | 4216 | { |
49c4e619 | 4217 | return NULL; |
c94fdfd0 | 4218 | } |
c906108c SS |
4219 | else |
4220 | { | |
4221 | /* It is not a quoted string. Break it based on the characters | |
4222 | which are in symbols. */ | |
4223 | while (p > text) | |
4224 | { | |
95699ff0 | 4225 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0' |
f55ee35c | 4226 | || p[-1] == ':' || strchr (break_on, p[-1]) != NULL) |
c906108c SS |
4227 | --p; |
4228 | else | |
4229 | break; | |
4230 | } | |
4231 | sym_text = p; | |
4232 | } | |
4233 | } | |
4234 | ||
4235 | sym_text_len = strlen (sym_text); | |
4236 | ||
1976171a JK |
4237 | /* Prepare SYM_TEXT_LEN for compare_symbol_name. */ |
4238 | ||
4239 | if (current_language->la_language == language_cplus | |
4240 | || current_language->la_language == language_java | |
4241 | || current_language->la_language == language_fortran) | |
4242 | { | |
4243 | /* These languages may have parameters entered by user but they are never | |
4244 | present in the partial symbol tables. */ | |
4245 | ||
4246 | const char *cs = memchr (sym_text, '(', sym_text_len); | |
4247 | ||
4248 | if (cs) | |
4249 | sym_text_len = cs - sym_text; | |
4250 | } | |
4251 | gdb_assert (sym_text[sym_text_len] == '\0' || sym_text[sym_text_len] == '('); | |
4252 | ||
49c4e619 | 4253 | return_val = NULL; |
821296b7 | 4254 | back_to = make_cleanup (do_free_completion_list, &return_val); |
c906108c | 4255 | |
ccefe4c4 TT |
4256 | datum.sym_text = sym_text; |
4257 | datum.sym_text_len = sym_text_len; | |
4258 | datum.text = text; | |
4259 | datum.word = word; | |
4260 | ||
c906108c | 4261 | /* Look through the partial symtabs for all symbols which begin |
7b08b9eb JK |
4262 | by matching SYM_TEXT. Expand all CUs that you find to the list. |
4263 | The real names will get added by COMPLETION_LIST_ADD_SYMBOL below. */ | |
4264 | expand_partial_symbol_names (expand_partial_symbol_name, &datum); | |
c906108c SS |
4265 | |
4266 | /* At this point scan through the misc symbol vectors and add each | |
4267 | symbol you find to the list. Eventually we want to ignore | |
4268 | anything that isn't a text symbol (everything else will be | |
4269 | handled by the psymtab code above). */ | |
4270 | ||
4271 | ALL_MSYMBOLS (objfile, msymbol) | |
c5aa993b JM |
4272 | { |
4273 | QUIT; | |
4274 | COMPLETION_LIST_ADD_SYMBOL (msymbol, sym_text, sym_text_len, text, word); | |
9af17804 | 4275 | |
69636828 | 4276 | completion_list_objc_symbol (msymbol, sym_text, sym_text_len, text, word); |
c5aa993b | 4277 | } |
c906108c SS |
4278 | |
4279 | /* Search upwards from currently selected frame (so that we can | |
edb3359d DJ |
4280 | complete on local vars). Also catch fields of types defined in |
4281 | this places which match our text string. Only complete on types | |
c378eb4e | 4282 | visible from current context. */ |
edb3359d DJ |
4283 | |
4284 | b = get_selected_block (0); | |
4285 | surrounding_static_block = block_static_block (b); | |
4286 | surrounding_global_block = block_global_block (b); | |
4287 | if (surrounding_static_block != NULL) | |
4288 | while (b != surrounding_static_block) | |
4289 | { | |
4290 | QUIT; | |
c906108c | 4291 | |
edb3359d DJ |
4292 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
4293 | { | |
4294 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, | |
4295 | word); | |
4296 | completion_list_add_fields (sym, sym_text, sym_text_len, text, | |
4297 | word); | |
4298 | } | |
c5aa993b | 4299 | |
edb3359d DJ |
4300 | /* Stop when we encounter an enclosing function. Do not stop for |
4301 | non-inlined functions - the locals of the enclosing function | |
4302 | are in scope for a nested function. */ | |
4303 | if (BLOCK_FUNCTION (b) != NULL && block_inlined_p (b)) | |
4304 | break; | |
4305 | b = BLOCK_SUPERBLOCK (b); | |
4306 | } | |
c906108c | 4307 | |
edb3359d | 4308 | /* Add fields from the file's types; symbols will be added below. */ |
c906108c | 4309 | |
edb3359d DJ |
4310 | if (surrounding_static_block != NULL) |
4311 | ALL_BLOCK_SYMBOLS (surrounding_static_block, iter, sym) | |
4312 | completion_list_add_fields (sym, sym_text, sym_text_len, text, word); | |
4313 | ||
4314 | if (surrounding_global_block != NULL) | |
4315 | ALL_BLOCK_SYMBOLS (surrounding_global_block, iter, sym) | |
4316 | completion_list_add_fields (sym, sym_text, sym_text_len, text, word); | |
c906108c SS |
4317 | |
4318 | /* Go through the symtabs and check the externs and statics for | |
4319 | symbols which match. */ | |
4320 | ||
11309657 | 4321 | ALL_PRIMARY_SYMTABS (objfile, s) |
c5aa993b JM |
4322 | { |
4323 | QUIT; | |
4324 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK); | |
de4f826b | 4325 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c5aa993b | 4326 | { |
c5aa993b JM |
4327 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
4328 | } | |
4329 | } | |
c906108c | 4330 | |
11309657 | 4331 | ALL_PRIMARY_SYMTABS (objfile, s) |
c5aa993b JM |
4332 | { |
4333 | QUIT; | |
4334 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK); | |
de4f826b | 4335 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c5aa993b | 4336 | { |
c5aa993b JM |
4337 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
4338 | } | |
4339 | } | |
c906108c | 4340 | |
9a044a89 TT |
4341 | if (current_language->la_macro_expansion == macro_expansion_c) |
4342 | { | |
4343 | struct macro_scope *scope; | |
9a044a89 TT |
4344 | |
4345 | /* Add any macros visible in the default scope. Note that this | |
4346 | may yield the occasional wrong result, because an expression | |
4347 | might be evaluated in a scope other than the default. For | |
4348 | example, if the user types "break file:line if <TAB>", the | |
4349 | resulting expression will be evaluated at "file:line" -- but | |
4350 | at there does not seem to be a way to detect this at | |
4351 | completion time. */ | |
4352 | scope = default_macro_scope (); | |
4353 | if (scope) | |
4354 | { | |
4355 | macro_for_each_in_scope (scope->file, scope->line, | |
4356 | add_macro_name, &datum); | |
4357 | xfree (scope); | |
4358 | } | |
4359 | ||
4360 | /* User-defined macros are always visible. */ | |
4361 | macro_for_each (macro_user_macros, add_macro_name, &datum); | |
4362 | } | |
4363 | ||
821296b7 | 4364 | discard_cleanups (back_to); |
c906108c SS |
4365 | return (return_val); |
4366 | } | |
4367 | ||
49c4e619 | 4368 | VEC (char_ptr) * |
f55ee35c JK |
4369 | default_make_symbol_completion_list (char *text, char *word) |
4370 | { | |
4371 | return default_make_symbol_completion_list_break_on (text, word, ""); | |
4372 | } | |
4373 | ||
49c4e619 TT |
4374 | /* Return a vector of all symbols (regardless of class) which begin by |
4375 | matching TEXT. If the answer is no symbols, then the return value | |
4376 | is NULL. */ | |
41d27058 | 4377 | |
49c4e619 | 4378 | VEC (char_ptr) * |
41d27058 JB |
4379 | make_symbol_completion_list (char *text, char *word) |
4380 | { | |
4381 | return current_language->la_make_symbol_completion_list (text, word); | |
4382 | } | |
4383 | ||
d8906c6f TJB |
4384 | /* Like make_symbol_completion_list, but suitable for use as a |
4385 | completion function. */ | |
4386 | ||
49c4e619 | 4387 | VEC (char_ptr) * |
d8906c6f TJB |
4388 | make_symbol_completion_list_fn (struct cmd_list_element *ignore, |
4389 | char *text, char *word) | |
4390 | { | |
4391 | return make_symbol_completion_list (text, word); | |
4392 | } | |
4393 | ||
c94fdfd0 EZ |
4394 | /* Like make_symbol_completion_list, but returns a list of symbols |
4395 | defined in a source file FILE. */ | |
4396 | ||
49c4e619 | 4397 | VEC (char_ptr) * |
c94fdfd0 EZ |
4398 | make_file_symbol_completion_list (char *text, char *word, char *srcfile) |
4399 | { | |
52f0bd74 AC |
4400 | struct symbol *sym; |
4401 | struct symtab *s; | |
4402 | struct block *b; | |
8157b174 | 4403 | struct block_iterator iter; |
c94fdfd0 EZ |
4404 | /* The symbol we are completing on. Points in same buffer as text. */ |
4405 | char *sym_text; | |
4406 | /* Length of sym_text. */ | |
4407 | int sym_text_len; | |
4408 | ||
4409 | /* Now look for the symbol we are supposed to complete on. | |
4410 | FIXME: This should be language-specific. */ | |
4411 | { | |
4412 | char *p; | |
4413 | char quote_found; | |
4414 | char *quote_pos = NULL; | |
4415 | ||
4416 | /* First see if this is a quoted string. */ | |
4417 | quote_found = '\0'; | |
4418 | for (p = text; *p != '\0'; ++p) | |
4419 | { | |
4420 | if (quote_found != '\0') | |
4421 | { | |
4422 | if (*p == quote_found) | |
4423 | /* Found close quote. */ | |
4424 | quote_found = '\0'; | |
4425 | else if (*p == '\\' && p[1] == quote_found) | |
4426 | /* A backslash followed by the quote character | |
4427 | doesn't end the string. */ | |
4428 | ++p; | |
4429 | } | |
4430 | else if (*p == '\'' || *p == '"') | |
4431 | { | |
4432 | quote_found = *p; | |
4433 | quote_pos = p; | |
4434 | } | |
4435 | } | |
4436 | if (quote_found == '\'') | |
4437 | /* A string within single quotes can be a symbol, so complete on it. */ | |
4438 | sym_text = quote_pos + 1; | |
4439 | else if (quote_found == '"') | |
4440 | /* A double-quoted string is never a symbol, nor does it make sense | |
4441 | to complete it any other way. */ | |
4442 | { | |
49c4e619 | 4443 | return NULL; |
c94fdfd0 EZ |
4444 | } |
4445 | else | |
4446 | { | |
69636828 AF |
4447 | /* Not a quoted string. */ |
4448 | sym_text = language_search_unquoted_string (text, p); | |
c94fdfd0 EZ |
4449 | } |
4450 | } | |
4451 | ||
4452 | sym_text_len = strlen (sym_text); | |
4453 | ||
49c4e619 | 4454 | return_val = NULL; |
c94fdfd0 EZ |
4455 | |
4456 | /* Find the symtab for SRCFILE (this loads it if it was not yet read | |
4457 | in). */ | |
4458 | s = lookup_symtab (srcfile); | |
4459 | if (s == NULL) | |
4460 | { | |
4461 | /* Maybe they typed the file with leading directories, while the | |
4462 | symbol tables record only its basename. */ | |
31889e00 | 4463 | const char *tail = lbasename (srcfile); |
c94fdfd0 EZ |
4464 | |
4465 | if (tail > srcfile) | |
4466 | s = lookup_symtab (tail); | |
4467 | } | |
4468 | ||
4469 | /* If we have no symtab for that file, return an empty list. */ | |
4470 | if (s == NULL) | |
4471 | return (return_val); | |
4472 | ||
4473 | /* Go through this symtab and check the externs and statics for | |
4474 | symbols which match. */ | |
4475 | ||
4476 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK); | |
de4f826b | 4477 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c94fdfd0 | 4478 | { |
c94fdfd0 EZ |
4479 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
4480 | } | |
4481 | ||
4482 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK); | |
de4f826b | 4483 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c94fdfd0 | 4484 | { |
c94fdfd0 EZ |
4485 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
4486 | } | |
4487 | ||
4488 | return (return_val); | |
4489 | } | |
4490 | ||
4491 | /* A helper function for make_source_files_completion_list. It adds | |
4492 | another file name to a list of possible completions, growing the | |
4493 | list as necessary. */ | |
4494 | ||
4495 | static void | |
4496 | add_filename_to_list (const char *fname, char *text, char *word, | |
49c4e619 | 4497 | VEC (char_ptr) **list) |
c94fdfd0 EZ |
4498 | { |
4499 | char *new; | |
4500 | size_t fnlen = strlen (fname); | |
4501 | ||
c94fdfd0 EZ |
4502 | if (word == text) |
4503 | { | |
4504 | /* Return exactly fname. */ | |
4505 | new = xmalloc (fnlen + 5); | |
4506 | strcpy (new, fname); | |
4507 | } | |
4508 | else if (word > text) | |
4509 | { | |
4510 | /* Return some portion of fname. */ | |
4511 | new = xmalloc (fnlen + 5); | |
4512 | strcpy (new, fname + (word - text)); | |
4513 | } | |
4514 | else | |
4515 | { | |
4516 | /* Return some of TEXT plus fname. */ | |
4517 | new = xmalloc (fnlen + (text - word) + 5); | |
4518 | strncpy (new, word, text - word); | |
4519 | new[text - word] = '\0'; | |
4520 | strcat (new, fname); | |
4521 | } | |
49c4e619 | 4522 | VEC_safe_push (char_ptr, *list, new); |
c94fdfd0 EZ |
4523 | } |
4524 | ||
4525 | static int | |
4526 | not_interesting_fname (const char *fname) | |
4527 | { | |
4528 | static const char *illegal_aliens[] = { | |
4529 | "_globals_", /* inserted by coff_symtab_read */ | |
4530 | NULL | |
4531 | }; | |
4532 | int i; | |
4533 | ||
4534 | for (i = 0; illegal_aliens[i]; i++) | |
4535 | { | |
0ba1096a | 4536 | if (filename_cmp (fname, illegal_aliens[i]) == 0) |
c94fdfd0 EZ |
4537 | return 1; |
4538 | } | |
4539 | return 0; | |
4540 | } | |
4541 | ||
ccefe4c4 TT |
4542 | /* An object of this type is passed as the user_data argument to |
4543 | map_partial_symbol_filenames. */ | |
4544 | struct add_partial_filename_data | |
4545 | { | |
4546 | int *first; | |
4547 | char *text; | |
4548 | char *word; | |
4549 | int text_len; | |
49c4e619 | 4550 | VEC (char_ptr) **list; |
ccefe4c4 TT |
4551 | }; |
4552 | ||
4553 | /* A callback for map_partial_symbol_filenames. */ | |
eca864fe | 4554 | |
ccefe4c4 | 4555 | static void |
2837d59e | 4556 | maybe_add_partial_symtab_filename (const char *filename, const char *fullname, |
ccefe4c4 TT |
4557 | void *user_data) |
4558 | { | |
4559 | struct add_partial_filename_data *data = user_data; | |
4560 | ||
4561 | if (not_interesting_fname (filename)) | |
4562 | return; | |
4563 | if (!filename_seen (filename, 1, data->first) | |
0ba1096a | 4564 | && filename_ncmp (filename, data->text, data->text_len) == 0) |
ccefe4c4 TT |
4565 | { |
4566 | /* This file matches for a completion; add it to the | |
4567 | current list of matches. */ | |
49c4e619 | 4568 | add_filename_to_list (filename, data->text, data->word, data->list); |
ccefe4c4 TT |
4569 | } |
4570 | else | |
4571 | { | |
4572 | const char *base_name = lbasename (filename); | |
433759f7 | 4573 | |
ccefe4c4 TT |
4574 | if (base_name != filename |
4575 | && !filename_seen (base_name, 1, data->first) | |
0ba1096a | 4576 | && filename_ncmp (base_name, data->text, data->text_len) == 0) |
49c4e619 | 4577 | add_filename_to_list (base_name, data->text, data->word, data->list); |
ccefe4c4 TT |
4578 | } |
4579 | } | |
4580 | ||
49c4e619 TT |
4581 | /* Return a vector of all source files whose names begin with matching |
4582 | TEXT. The file names are looked up in the symbol tables of this | |
4583 | program. If the answer is no matchess, then the return value is | |
4584 | NULL. */ | |
c94fdfd0 | 4585 | |
49c4e619 | 4586 | VEC (char_ptr) * |
c94fdfd0 EZ |
4587 | make_source_files_completion_list (char *text, char *word) |
4588 | { | |
52f0bd74 | 4589 | struct symtab *s; |
52f0bd74 | 4590 | struct objfile *objfile; |
c94fdfd0 | 4591 | int first = 1; |
c94fdfd0 | 4592 | size_t text_len = strlen (text); |
49c4e619 | 4593 | VEC (char_ptr) *list = NULL; |
31889e00 | 4594 | const char *base_name; |
ccefe4c4 | 4595 | struct add_partial_filename_data datum; |
821296b7 | 4596 | struct cleanup *back_to; |
c94fdfd0 | 4597 | |
c94fdfd0 EZ |
4598 | if (!have_full_symbols () && !have_partial_symbols ()) |
4599 | return list; | |
4600 | ||
821296b7 SA |
4601 | back_to = make_cleanup (do_free_completion_list, &list); |
4602 | ||
c94fdfd0 EZ |
4603 | ALL_SYMTABS (objfile, s) |
4604 | { | |
4605 | if (not_interesting_fname (s->filename)) | |
4606 | continue; | |
4607 | if (!filename_seen (s->filename, 1, &first) | |
0ba1096a | 4608 | && filename_ncmp (s->filename, text, text_len) == 0) |
c94fdfd0 EZ |
4609 | { |
4610 | /* This file matches for a completion; add it to the current | |
4611 | list of matches. */ | |
49c4e619 | 4612 | add_filename_to_list (s->filename, text, word, &list); |
c94fdfd0 EZ |
4613 | } |
4614 | else | |
4615 | { | |
4616 | /* NOTE: We allow the user to type a base name when the | |
4617 | debug info records leading directories, but not the other | |
4618 | way around. This is what subroutines of breakpoint | |
4619 | command do when they parse file names. */ | |
31889e00 | 4620 | base_name = lbasename (s->filename); |
c94fdfd0 EZ |
4621 | if (base_name != s->filename |
4622 | && !filename_seen (base_name, 1, &first) | |
0ba1096a | 4623 | && filename_ncmp (base_name, text, text_len) == 0) |
49c4e619 | 4624 | add_filename_to_list (base_name, text, word, &list); |
c94fdfd0 EZ |
4625 | } |
4626 | } | |
4627 | ||
ccefe4c4 TT |
4628 | datum.first = &first; |
4629 | datum.text = text; | |
4630 | datum.word = word; | |
4631 | datum.text_len = text_len; | |
4632 | datum.list = &list; | |
74e2f255 DE |
4633 | map_partial_symbol_filenames (maybe_add_partial_symtab_filename, &datum, |
4634 | 0 /*need_fullname*/); | |
821296b7 | 4635 | discard_cleanups (back_to); |
c94fdfd0 EZ |
4636 | |
4637 | return list; | |
4638 | } | |
4639 | ||
c906108c SS |
4640 | /* Determine if PC is in the prologue of a function. The prologue is the area |
4641 | between the first instruction of a function, and the first executable line. | |
4642 | Returns 1 if PC *might* be in prologue, 0 if definately *not* in prologue. | |
4643 | ||
4644 | If non-zero, func_start is where we think the prologue starts, possibly | |
c378eb4e | 4645 | by previous examination of symbol table information. */ |
c906108c SS |
4646 | |
4647 | int | |
d80b854b | 4648 | in_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR func_start) |
c906108c SS |
4649 | { |
4650 | struct symtab_and_line sal; | |
4651 | CORE_ADDR func_addr, func_end; | |
4652 | ||
54cf9c03 EZ |
4653 | /* We have several sources of information we can consult to figure |
4654 | this out. | |
4655 | - Compilers usually emit line number info that marks the prologue | |
4656 | as its own "source line". So the ending address of that "line" | |
4657 | is the end of the prologue. If available, this is the most | |
4658 | reliable method. | |
4659 | - The minimal symbols and partial symbols, which can usually tell | |
4660 | us the starting and ending addresses of a function. | |
4661 | - If we know the function's start address, we can call the | |
a433963d | 4662 | architecture-defined gdbarch_skip_prologue function to analyze the |
54cf9c03 EZ |
4663 | instruction stream and guess where the prologue ends. |
4664 | - Our `func_start' argument; if non-zero, this is the caller's | |
4665 | best guess as to the function's entry point. At the time of | |
4666 | this writing, handle_inferior_event doesn't get this right, so | |
4667 | it should be our last resort. */ | |
4668 | ||
4669 | /* Consult the partial symbol table, to find which function | |
4670 | the PC is in. */ | |
4671 | if (! find_pc_partial_function (pc, NULL, &func_addr, &func_end)) | |
4672 | { | |
4673 | CORE_ADDR prologue_end; | |
c906108c | 4674 | |
54cf9c03 EZ |
4675 | /* We don't even have minsym information, so fall back to using |
4676 | func_start, if given. */ | |
4677 | if (! func_start) | |
4678 | return 1; /* We *might* be in a prologue. */ | |
c906108c | 4679 | |
d80b854b | 4680 | prologue_end = gdbarch_skip_prologue (gdbarch, func_start); |
c906108c | 4681 | |
54cf9c03 EZ |
4682 | return func_start <= pc && pc < prologue_end; |
4683 | } | |
c906108c | 4684 | |
54cf9c03 EZ |
4685 | /* If we have line number information for the function, that's |
4686 | usually pretty reliable. */ | |
4687 | sal = find_pc_line (func_addr, 0); | |
c906108c | 4688 | |
54cf9c03 EZ |
4689 | /* Now sal describes the source line at the function's entry point, |
4690 | which (by convention) is the prologue. The end of that "line", | |
4691 | sal.end, is the end of the prologue. | |
4692 | ||
4693 | Note that, for functions whose source code is all on a single | |
4694 | line, the line number information doesn't always end up this way. | |
4695 | So we must verify that our purported end-of-prologue address is | |
4696 | *within* the function, not at its start or end. */ | |
4697 | if (sal.line == 0 | |
4698 | || sal.end <= func_addr | |
4699 | || func_end <= sal.end) | |
4700 | { | |
4701 | /* We don't have any good line number info, so use the minsym | |
4702 | information, together with the architecture-specific prologue | |
4703 | scanning code. */ | |
d80b854b | 4704 | CORE_ADDR prologue_end = gdbarch_skip_prologue (gdbarch, func_addr); |
c906108c | 4705 | |
54cf9c03 EZ |
4706 | return func_addr <= pc && pc < prologue_end; |
4707 | } | |
c906108c | 4708 | |
54cf9c03 EZ |
4709 | /* We have line number info, and it looks good. */ |
4710 | return func_addr <= pc && pc < sal.end; | |
c906108c SS |
4711 | } |
4712 | ||
634aa483 AC |
4713 | /* Given PC at the function's start address, attempt to find the |
4714 | prologue end using SAL information. Return zero if the skip fails. | |
4715 | ||
4716 | A non-optimized prologue traditionally has one SAL for the function | |
4717 | and a second for the function body. A single line function has | |
4718 | them both pointing at the same line. | |
4719 | ||
4720 | An optimized prologue is similar but the prologue may contain | |
4721 | instructions (SALs) from the instruction body. Need to skip those | |
4722 | while not getting into the function body. | |
4723 | ||
4724 | The functions end point and an increasing SAL line are used as | |
4725 | indicators of the prologue's endpoint. | |
4726 | ||
7475b06c TJB |
4727 | This code is based on the function refine_prologue_limit |
4728 | (found in ia64). */ | |
634aa483 AC |
4729 | |
4730 | CORE_ADDR | |
d80b854b | 4731 | skip_prologue_using_sal (struct gdbarch *gdbarch, CORE_ADDR func_addr) |
634aa483 AC |
4732 | { |
4733 | struct symtab_and_line prologue_sal; | |
4734 | CORE_ADDR start_pc; | |
4735 | CORE_ADDR end_pc; | |
d54be744 | 4736 | struct block *bl; |
634aa483 AC |
4737 | |
4738 | /* Get an initial range for the function. */ | |
4739 | find_pc_partial_function (func_addr, NULL, &start_pc, &end_pc); | |
d80b854b | 4740 | start_pc += gdbarch_deprecated_function_start_offset (gdbarch); |
634aa483 AC |
4741 | |
4742 | prologue_sal = find_pc_line (start_pc, 0); | |
4743 | if (prologue_sal.line != 0) | |
4744 | { | |
e5dd4106 | 4745 | /* For languages other than assembly, treat two consecutive line |
d54be744 DJ |
4746 | entries at the same address as a zero-instruction prologue. |
4747 | The GNU assembler emits separate line notes for each instruction | |
4748 | in a multi-instruction macro, but compilers generally will not | |
4749 | do this. */ | |
4750 | if (prologue_sal.symtab->language != language_asm) | |
4751 | { | |
4752 | struct linetable *linetable = LINETABLE (prologue_sal.symtab); | |
d54be744 DJ |
4753 | int idx = 0; |
4754 | ||
4755 | /* Skip any earlier lines, and any end-of-sequence marker | |
4756 | from a previous function. */ | |
4757 | while (linetable->item[idx].pc != prologue_sal.pc | |
4758 | || linetable->item[idx].line == 0) | |
4759 | idx++; | |
4760 | ||
4761 | if (idx+1 < linetable->nitems | |
4762 | && linetable->item[idx+1].line != 0 | |
4763 | && linetable->item[idx+1].pc == start_pc) | |
4764 | return start_pc; | |
4765 | } | |
4766 | ||
576c2025 FF |
4767 | /* If there is only one sal that covers the entire function, |
4768 | then it is probably a single line function, like | |
c378eb4e | 4769 | "foo(){}". */ |
91934273 | 4770 | if (prologue_sal.end >= end_pc) |
4e463ff5 | 4771 | return 0; |
d54be744 | 4772 | |
634aa483 AC |
4773 | while (prologue_sal.end < end_pc) |
4774 | { | |
4775 | struct symtab_and_line sal; | |
4776 | ||
4777 | sal = find_pc_line (prologue_sal.end, 0); | |
4778 | if (sal.line == 0) | |
4779 | break; | |
4780 | /* Assume that a consecutive SAL for the same (or larger) | |
4781 | line mark the prologue -> body transition. */ | |
4782 | if (sal.line >= prologue_sal.line) | |
4783 | break; | |
edb3359d DJ |
4784 | |
4785 | /* The line number is smaller. Check that it's from the | |
4786 | same function, not something inlined. If it's inlined, | |
4787 | then there is no point comparing the line numbers. */ | |
4788 | bl = block_for_pc (prologue_sal.end); | |
4789 | while (bl) | |
4790 | { | |
4791 | if (block_inlined_p (bl)) | |
4792 | break; | |
4793 | if (BLOCK_FUNCTION (bl)) | |
4794 | { | |
4795 | bl = NULL; | |
4796 | break; | |
4797 | } | |
4798 | bl = BLOCK_SUPERBLOCK (bl); | |
4799 | } | |
4800 | if (bl != NULL) | |
4801 | break; | |
4802 | ||
634aa483 AC |
4803 | /* The case in which compiler's optimizer/scheduler has |
4804 | moved instructions into the prologue. We look ahead in | |
4805 | the function looking for address ranges whose | |
4806 | corresponding line number is less the first one that we | |
4807 | found for the function. This is more conservative then | |
4808 | refine_prologue_limit which scans a large number of SALs | |
c378eb4e | 4809 | looking for any in the prologue. */ |
634aa483 AC |
4810 | prologue_sal = sal; |
4811 | } | |
4812 | } | |
d54be744 DJ |
4813 | |
4814 | if (prologue_sal.end < end_pc) | |
4815 | /* Return the end of this line, or zero if we could not find a | |
4816 | line. */ | |
4817 | return prologue_sal.end; | |
4818 | else | |
4819 | /* Don't return END_PC, which is past the end of the function. */ | |
4820 | return prologue_sal.pc; | |
634aa483 | 4821 | } |
c906108c | 4822 | \f |
51cc5b07 AC |
4823 | /* Track MAIN */ |
4824 | static char *name_of_main; | |
01f8c46d | 4825 | enum language language_of_main = language_unknown; |
51cc5b07 AC |
4826 | |
4827 | void | |
4828 | set_main_name (const char *name) | |
4829 | { | |
4830 | if (name_of_main != NULL) | |
4831 | { | |
4832 | xfree (name_of_main); | |
4833 | name_of_main = NULL; | |
01f8c46d | 4834 | language_of_main = language_unknown; |
51cc5b07 AC |
4835 | } |
4836 | if (name != NULL) | |
4837 | { | |
4838 | name_of_main = xstrdup (name); | |
01f8c46d | 4839 | language_of_main = language_unknown; |
51cc5b07 AC |
4840 | } |
4841 | } | |
4842 | ||
ea53e89f JB |
4843 | /* Deduce the name of the main procedure, and set NAME_OF_MAIN |
4844 | accordingly. */ | |
4845 | ||
4846 | static void | |
4847 | find_main_name (void) | |
4848 | { | |
cd6c7346 | 4849 | const char *new_main_name; |
ea53e89f JB |
4850 | |
4851 | /* Try to see if the main procedure is in Ada. */ | |
4852 | /* FIXME: brobecker/2005-03-07: Another way of doing this would | |
4853 | be to add a new method in the language vector, and call this | |
4854 | method for each language until one of them returns a non-empty | |
4855 | name. This would allow us to remove this hard-coded call to | |
4856 | an Ada function. It is not clear that this is a better approach | |
4857 | at this point, because all methods need to be written in a way | |
c378eb4e | 4858 | such that false positives never be returned. For instance, it is |
ea53e89f JB |
4859 | important that a method does not return a wrong name for the main |
4860 | procedure if the main procedure is actually written in a different | |
4861 | language. It is easy to guaranty this with Ada, since we use a | |
4862 | special symbol generated only when the main in Ada to find the name | |
c378eb4e | 4863 | of the main procedure. It is difficult however to see how this can |
ea53e89f JB |
4864 | be guarantied for languages such as C, for instance. This suggests |
4865 | that order of call for these methods becomes important, which means | |
4866 | a more complicated approach. */ | |
4867 | new_main_name = ada_main_name (); | |
4868 | if (new_main_name != NULL) | |
9af17804 | 4869 | { |
ea53e89f JB |
4870 | set_main_name (new_main_name); |
4871 | return; | |
4872 | } | |
4873 | ||
a766d390 DE |
4874 | new_main_name = go_main_name (); |
4875 | if (new_main_name != NULL) | |
4876 | { | |
4877 | set_main_name (new_main_name); | |
4878 | return; | |
4879 | } | |
4880 | ||
cd6c7346 PM |
4881 | new_main_name = pascal_main_name (); |
4882 | if (new_main_name != NULL) | |
9af17804 | 4883 | { |
cd6c7346 PM |
4884 | set_main_name (new_main_name); |
4885 | return; | |
4886 | } | |
4887 | ||
ea53e89f JB |
4888 | /* The languages above didn't identify the name of the main procedure. |
4889 | Fallback to "main". */ | |
4890 | set_main_name ("main"); | |
4891 | } | |
4892 | ||
51cc5b07 AC |
4893 | char * |
4894 | main_name (void) | |
4895 | { | |
ea53e89f JB |
4896 | if (name_of_main == NULL) |
4897 | find_main_name (); | |
4898 | ||
4899 | return name_of_main; | |
51cc5b07 AC |
4900 | } |
4901 | ||
ea53e89f JB |
4902 | /* Handle ``executable_changed'' events for the symtab module. */ |
4903 | ||
4904 | static void | |
781b42b0 | 4905 | symtab_observer_executable_changed (void) |
ea53e89f JB |
4906 | { |
4907 | /* NAME_OF_MAIN may no longer be the same, so reset it for now. */ | |
4908 | set_main_name (NULL); | |
4909 | } | |
51cc5b07 | 4910 | |
a6c727b2 DJ |
4911 | /* Return 1 if the supplied producer string matches the ARM RealView |
4912 | compiler (armcc). */ | |
4913 | ||
4914 | int | |
4915 | producer_is_realview (const char *producer) | |
4916 | { | |
4917 | static const char *const arm_idents[] = { | |
4918 | "ARM C Compiler, ADS", | |
4919 | "Thumb C Compiler, ADS", | |
4920 | "ARM C++ Compiler, ADS", | |
4921 | "Thumb C++ Compiler, ADS", | |
4922 | "ARM/Thumb C/C++ Compiler, RVCT", | |
4923 | "ARM C/C++ Compiler, RVCT" | |
4924 | }; | |
4925 | int i; | |
4926 | ||
4927 | if (producer == NULL) | |
4928 | return 0; | |
4929 | ||
4930 | for (i = 0; i < ARRAY_SIZE (arm_idents); i++) | |
4931 | if (strncmp (producer, arm_idents[i], strlen (arm_idents[i])) == 0) | |
4932 | return 1; | |
4933 | ||
4934 | return 0; | |
4935 | } | |
ed0616c6 | 4936 | |
c906108c | 4937 | void |
fba45db2 | 4938 | _initialize_symtab (void) |
c906108c | 4939 | { |
1bedd215 AC |
4940 | add_info ("variables", variables_info, _("\ |
4941 | All global and static variable names, or those matching REGEXP.")); | |
c906108c | 4942 | if (dbx_commands) |
1bedd215 AC |
4943 | add_com ("whereis", class_info, variables_info, _("\ |
4944 | All global and static variable names, or those matching REGEXP.")); | |
c906108c SS |
4945 | |
4946 | add_info ("functions", functions_info, | |
1bedd215 | 4947 | _("All function names, or those matching REGEXP.")); |
c906108c SS |
4948 | |
4949 | /* FIXME: This command has at least the following problems: | |
4950 | 1. It prints builtin types (in a very strange and confusing fashion). | |
4951 | 2. It doesn't print right, e.g. with | |
c5aa993b JM |
4952 | typedef struct foo *FOO |
4953 | type_print prints "FOO" when we want to make it (in this situation) | |
4954 | print "struct foo *". | |
c906108c SS |
4955 | I also think "ptype" or "whatis" is more likely to be useful (but if |
4956 | there is much disagreement "info types" can be fixed). */ | |
4957 | add_info ("types", types_info, | |
1bedd215 | 4958 | _("All type names, or those matching REGEXP.")); |
c906108c | 4959 | |
c906108c | 4960 | add_info ("sources", sources_info, |
1bedd215 | 4961 | _("Source files in the program.")); |
c906108c SS |
4962 | |
4963 | add_com ("rbreak", class_breakpoint, rbreak_command, | |
1bedd215 | 4964 | _("Set a breakpoint for all functions matching REGEXP.")); |
c906108c SS |
4965 | |
4966 | if (xdb_commands) | |
4967 | { | |
1bedd215 AC |
4968 | add_com ("lf", class_info, sources_info, |
4969 | _("Source files in the program")); | |
4970 | add_com ("lg", class_info, variables_info, _("\ | |
4971 | All global and static variable names, or those matching REGEXP.")); | |
c906108c SS |
4972 | } |
4973 | ||
717d2f5a JB |
4974 | add_setshow_enum_cmd ("multiple-symbols", no_class, |
4975 | multiple_symbols_modes, &multiple_symbols_mode, | |
4976 | _("\ | |
4977 | Set the debugger behavior when more than one symbol are possible matches\n\ | |
4978 | in an expression."), _("\ | |
4979 | Show how the debugger handles ambiguities in expressions."), _("\ | |
4980 | Valid values are \"ask\", \"all\", \"cancel\", and the default is \"all\"."), | |
4981 | NULL, NULL, &setlist, &showlist); | |
4982 | ||
c011a4f4 DE |
4983 | add_setshow_boolean_cmd ("basenames-may-differ", class_obscure, |
4984 | &basenames_may_differ, _("\ | |
4985 | Set whether a source file may have multiple base names."), _("\ | |
4986 | Show whether a source file may have multiple base names."), _("\ | |
4987 | (A \"base name\" is the name of a file with the directory part removed.\n\ | |
4988 | Example: The base name of \"/home/user/hello.c\" is \"hello.c\".)\n\ | |
4989 | If set, GDB will canonicalize file names (e.g., expand symlinks)\n\ | |
4990 | before comparing them. Canonicalization is an expensive operation,\n\ | |
4991 | but it allows the same file be known by more than one base name.\n\ | |
4992 | If not set (the default), all source files are assumed to have just\n\ | |
4993 | one base name, and gdb will do file name comparisons more efficiently."), | |
4994 | NULL, NULL, | |
4995 | &setlist, &showlist); | |
4996 | ||
45cfd468 DE |
4997 | add_setshow_boolean_cmd ("symtab-create", no_class, &symtab_create_debug, |
4998 | _("Set debugging of symbol table creation."), | |
4999 | _("Show debugging of symbol table creation."), _("\ | |
5000 | When enabled, debugging messages are printed when building symbol tables."), | |
5001 | NULL, | |
5002 | NULL, | |
5003 | &setdebuglist, &showdebuglist); | |
5004 | ||
ea53e89f | 5005 | observer_attach_executable_changed (symtab_observer_executable_changed); |
c906108c | 5006 | } |