Commit | Line | Data |
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c906108c | 1 | /* Symbol table lookup for the GNU debugger, GDB. |
8926118c | 2 | |
28e7fd62 | 3 | Copyright (C) 1986-2013 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b | 5 | This file is part of GDB. |
c906108c | 6 | |
c5aa993b JM |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 10 | (at your option) any later version. |
c906108c | 11 | |
c5aa993b JM |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
c906108c | 16 | |
c5aa993b | 17 | You should have received a copy of the GNU General Public License |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
19 | |
20 | #include "defs.h" | |
21 | #include "symtab.h" | |
22 | #include "gdbtypes.h" | |
23 | #include "gdbcore.h" | |
24 | #include "frame.h" | |
25 | #include "target.h" | |
26 | #include "value.h" | |
27 | #include "symfile.h" | |
28 | #include "objfiles.h" | |
29 | #include "gdbcmd.h" | |
88987551 | 30 | #include "gdb_regex.h" |
c906108c SS |
31 | #include "expression.h" |
32 | #include "language.h" | |
33 | #include "demangle.h" | |
34 | #include "inferior.h" | |
0378c332 | 35 | #include "source.h" |
a7fdf62f | 36 | #include "filenames.h" /* for FILENAME_CMP */ |
1bae87b9 | 37 | #include "objc-lang.h" |
6aecb9c2 | 38 | #include "d-lang.h" |
1f8173e6 | 39 | #include "ada-lang.h" |
a766d390 | 40 | #include "go-lang.h" |
cd6c7346 | 41 | #include "p-lang.h" |
ff013f42 | 42 | #include "addrmap.h" |
529480d0 | 43 | #include "cli/cli-utils.h" |
c906108c | 44 | |
2de7ced7 DJ |
45 | #include "hashtab.h" |
46 | ||
04ea0df1 | 47 | #include "gdb_obstack.h" |
fe898f56 | 48 | #include "block.h" |
de4f826b | 49 | #include "dictionary.h" |
c906108c SS |
50 | |
51 | #include <sys/types.h> | |
52 | #include <fcntl.h> | |
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 | 64 | #include "psymtab.h" |
270140bd | 65 | #include "parser-defs.h" |
ccefe4c4 | 66 | |
c906108c SS |
67 | /* Prototypes for local functions */ |
68 | ||
a14ed312 | 69 | static void rbreak_command (char *, int); |
c906108c | 70 | |
a14ed312 | 71 | static void types_info (char *, int); |
c906108c | 72 | |
a14ed312 | 73 | static void functions_info (char *, int); |
c906108c | 74 | |
a14ed312 | 75 | static void variables_info (char *, int); |
c906108c | 76 | |
a14ed312 | 77 | static void sources_info (char *, int); |
c906108c | 78 | |
f8eba3c6 | 79 | static int find_line_common (struct linetable *, int, int *, int); |
c906108c | 80 | |
3121eff0 | 81 | static struct symbol *lookup_symbol_aux (const char *name, |
3121eff0 | 82 | const struct block *block, |
176620f1 | 83 | const domain_enum domain, |
53c5240f | 84 | enum language language, |
1993b719 | 85 | struct field_of_this_result *is_a_field_of_this); |
fba7f19c | 86 | |
e4051eeb DC |
87 | static |
88 | struct symbol *lookup_symbol_aux_local (const char *name, | |
e4051eeb | 89 | const struct block *block, |
13387711 SW |
90 | const domain_enum domain, |
91 | enum language language); | |
8155455b DC |
92 | |
93 | static | |
94 | struct symbol *lookup_symbol_aux_symtabs (int block_index, | |
95 | const char *name, | |
67ff19f7 | 96 | const domain_enum domain); |
8155455b DC |
97 | |
98 | static | |
ccefe4c4 TT |
99 | struct symbol *lookup_symbol_aux_quick (struct objfile *objfile, |
100 | int block_index, | |
101 | const char *name, | |
102 | const domain_enum domain); | |
c906108c | 103 | |
a14ed312 | 104 | static void print_msymbol_info (struct minimal_symbol *); |
c906108c | 105 | |
a14ed312 | 106 | void _initialize_symtab (void); |
c906108c SS |
107 | |
108 | /* */ | |
109 | ||
45cfd468 DE |
110 | /* When non-zero, print debugging messages related to symtab creation. */ |
111 | int symtab_create_debug = 0; | |
112 | ||
c011a4f4 DE |
113 | /* Non-zero if a file may be known by two different basenames. |
114 | This is the uncommon case, and significantly slows down gdb. | |
115 | Default set to "off" to not slow down the common case. */ | |
116 | int basenames_may_differ = 0; | |
117 | ||
717d2f5a JB |
118 | /* Allow the user to configure the debugger behavior with respect |
119 | to multiple-choice menus when more than one symbol matches during | |
120 | a symbol lookup. */ | |
121 | ||
7fc830e2 MK |
122 | const char multiple_symbols_ask[] = "ask"; |
123 | const char multiple_symbols_all[] = "all"; | |
124 | const char multiple_symbols_cancel[] = "cancel"; | |
40478521 | 125 | static const char *const multiple_symbols_modes[] = |
717d2f5a JB |
126 | { |
127 | multiple_symbols_ask, | |
128 | multiple_symbols_all, | |
129 | multiple_symbols_cancel, | |
130 | NULL | |
131 | }; | |
132 | static const char *multiple_symbols_mode = multiple_symbols_all; | |
133 | ||
134 | /* Read-only accessor to AUTO_SELECT_MODE. */ | |
135 | ||
136 | const char * | |
137 | multiple_symbols_select_mode (void) | |
138 | { | |
139 | return multiple_symbols_mode; | |
140 | } | |
141 | ||
c906108c | 142 | /* Block in which the most recently searched-for symbol was found. |
9af17804 | 143 | Might be better to make this a parameter to lookup_symbol and |
c378eb4e | 144 | value_of_this. */ |
c906108c SS |
145 | |
146 | const struct block *block_found; | |
147 | ||
4aac40c8 TT |
148 | /* See whether FILENAME matches SEARCH_NAME using the rule that we |
149 | advertise to the user. (The manual's description of linespecs | |
af529f8f JK |
150 | describes what we advertise). Returns true if they match, false |
151 | otherwise. */ | |
4aac40c8 TT |
152 | |
153 | int | |
b57a636e | 154 | compare_filenames_for_search (const char *filename, const char *search_name) |
4aac40c8 TT |
155 | { |
156 | int len = strlen (filename); | |
b57a636e | 157 | size_t search_len = strlen (search_name); |
4aac40c8 TT |
158 | |
159 | if (len < search_len) | |
160 | return 0; | |
161 | ||
162 | /* The tail of FILENAME must match. */ | |
163 | if (FILENAME_CMP (filename + len - search_len, search_name) != 0) | |
164 | return 0; | |
165 | ||
166 | /* Either the names must completely match, or the character | |
167 | preceding the trailing SEARCH_NAME segment of FILENAME must be a | |
d84fca2c JK |
168 | directory separator. |
169 | ||
af529f8f JK |
170 | The check !IS_ABSOLUTE_PATH ensures SEARCH_NAME "/dir/file.c" |
171 | cannot match FILENAME "/path//dir/file.c" - as user has requested | |
172 | absolute path. The sama applies for "c:\file.c" possibly | |
173 | incorrectly hypothetically matching "d:\dir\c:\file.c". | |
174 | ||
d84fca2c JK |
175 | The HAS_DRIVE_SPEC purpose is to make FILENAME "c:file.c" |
176 | compatible with SEARCH_NAME "file.c". In such case a compiler had | |
177 | to put the "c:file.c" name into debug info. Such compatibility | |
178 | works only on GDB built for DOS host. */ | |
4aac40c8 | 179 | return (len == search_len |
af529f8f JK |
180 | || (!IS_ABSOLUTE_PATH (search_name) |
181 | && IS_DIR_SEPARATOR (filename[len - search_len - 1])) | |
4aac40c8 TT |
182 | || (HAS_DRIVE_SPEC (filename) |
183 | && STRIP_DRIVE_SPEC (filename) == &filename[len - search_len])); | |
184 | } | |
185 | ||
f8eba3c6 TT |
186 | /* Check for a symtab of a specific name by searching some symtabs. |
187 | This is a helper function for callbacks of iterate_over_symtabs. | |
c906108c | 188 | |
f5b95b50 | 189 | The return value, NAME, REAL_PATH, CALLBACK, and DATA |
f8eba3c6 TT |
190 | are identical to the `map_symtabs_matching_filename' method of |
191 | quick_symbol_functions. | |
192 | ||
193 | FIRST and AFTER_LAST indicate the range of symtabs to search. | |
194 | AFTER_LAST is one past the last symtab to search; NULL means to | |
195 | search until the end of the list. */ | |
196 | ||
197 | int | |
198 | iterate_over_some_symtabs (const char *name, | |
f8eba3c6 TT |
199 | const char *real_path, |
200 | int (*callback) (struct symtab *symtab, | |
201 | void *data), | |
202 | void *data, | |
203 | struct symtab *first, | |
204 | struct symtab *after_last) | |
c906108c | 205 | { |
ccefe4c4 | 206 | struct symtab *s = NULL; |
c011a4f4 | 207 | const char* base_name = lbasename (name); |
1f84b619 | 208 | |
f8eba3c6 | 209 | for (s = first; s != NULL && s != after_last; s = s->next) |
f079a2e5 | 210 | { |
af529f8f | 211 | if (compare_filenames_for_search (s->filename, name)) |
4aac40c8 TT |
212 | { |
213 | if (callback (s, data)) | |
214 | return 1; | |
288e77a7 | 215 | continue; |
4aac40c8 TT |
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 | ||
05cba821 JK |
224 | if (compare_filenames_for_search (symtab_to_fullname (s), name)) |
225 | { | |
226 | if (callback (s, data)) | |
227 | return 1; | |
288e77a7 | 228 | continue; |
05cba821 JK |
229 | } |
230 | ||
58d370e0 TT |
231 | /* If the user gave us an absolute path, try to find the file in |
232 | this symtab and use its absolute path. */ | |
9af17804 | 233 | |
58d370e0 TT |
234 | if (real_path != NULL) |
235 | { | |
0b0865da | 236 | const char *fullname = symtab_to_fullname (s); |
433759f7 | 237 | |
af529f8f JK |
238 | gdb_assert (IS_ABSOLUTE_PATH (real_path)); |
239 | gdb_assert (IS_ABSOLUTE_PATH (name)); | |
f5b95b50 | 240 | if (FILENAME_CMP (real_path, fullname) == 0) |
f35a17b5 JK |
241 | { |
242 | if (callback (s, data)) | |
f5b95b50 | 243 | return 1; |
288e77a7 | 244 | continue; |
f35a17b5 | 245 | } |
58d370e0 | 246 | } |
f8eba3c6 | 247 | } |
58d370e0 | 248 | |
f8eba3c6 TT |
249 | return 0; |
250 | } | |
251 | ||
252 | /* Check for a symtab of a specific name; first in symtabs, then in | |
253 | psymtabs. *If* there is no '/' in the name, a match after a '/' | |
254 | in the symtab filename will also work. | |
255 | ||
256 | Calls CALLBACK with each symtab that is found and with the supplied | |
257 | DATA. If CALLBACK returns true, the search stops. */ | |
258 | ||
259 | void | |
260 | iterate_over_symtabs (const char *name, | |
261 | int (*callback) (struct symtab *symtab, | |
262 | void *data), | |
263 | void *data) | |
264 | { | |
f8eba3c6 TT |
265 | struct objfile *objfile; |
266 | char *real_path = NULL; | |
f8eba3c6 TT |
267 | struct cleanup *cleanups = make_cleanup (null_cleanup, NULL); |
268 | ||
269 | /* Here we are interested in canonicalizing an absolute path, not | |
270 | absolutizing a relative path. */ | |
271 | if (IS_ABSOLUTE_PATH (name)) | |
272 | { | |
f8eba3c6 TT |
273 | real_path = gdb_realpath (name); |
274 | make_cleanup (xfree, real_path); | |
af529f8f | 275 | gdb_assert (IS_ABSOLUTE_PATH (real_path)); |
f8eba3c6 TT |
276 | } |
277 | ||
278 | ALL_OBJFILES (objfile) | |
279 | { | |
f5b95b50 | 280 | if (iterate_over_some_symtabs (name, real_path, callback, data, |
f8eba3c6 TT |
281 | objfile->symtabs, NULL)) |
282 | { | |
283 | do_cleanups (cleanups); | |
284 | return; | |
285 | } | |
286 | } | |
287 | ||
c906108c SS |
288 | /* Same search rules as above apply here, but now we look thru the |
289 | psymtabs. */ | |
290 | ||
ccefe4c4 TT |
291 | ALL_OBJFILES (objfile) |
292 | { | |
293 | if (objfile->sf | |
f8eba3c6 TT |
294 | && objfile->sf->qf->map_symtabs_matching_filename (objfile, |
295 | name, | |
f8eba3c6 TT |
296 | real_path, |
297 | callback, | |
298 | data)) | |
ccefe4c4 | 299 | { |
f8eba3c6 TT |
300 | do_cleanups (cleanups); |
301 | return; | |
ccefe4c4 TT |
302 | } |
303 | } | |
c906108c | 304 | |
f8eba3c6 TT |
305 | do_cleanups (cleanups); |
306 | } | |
307 | ||
308 | /* The callback function used by lookup_symtab. */ | |
309 | ||
310 | static int | |
311 | lookup_symtab_callback (struct symtab *symtab, void *data) | |
312 | { | |
313 | struct symtab **result_ptr = data; | |
c906108c | 314 | |
f8eba3c6 TT |
315 | *result_ptr = symtab; |
316 | return 1; | |
c906108c | 317 | } |
f8eba3c6 TT |
318 | |
319 | /* A wrapper for iterate_over_symtabs that returns the first matching | |
320 | symtab, or NULL. */ | |
321 | ||
322 | struct symtab * | |
323 | lookup_symtab (const char *name) | |
324 | { | |
325 | struct symtab *result = NULL; | |
326 | ||
327 | iterate_over_symtabs (name, lookup_symtab_callback, &result); | |
328 | return result; | |
329 | } | |
330 | ||
c906108c SS |
331 | \f |
332 | /* Mangle a GDB method stub type. This actually reassembles the pieces of the | |
333 | full method name, which consist of the class name (from T), the unadorned | |
334 | method name from METHOD_ID, and the signature for the specific overload, | |
c378eb4e | 335 | specified by SIGNATURE_ID. Note that this function is g++ specific. */ |
c906108c SS |
336 | |
337 | char * | |
fba45db2 | 338 | gdb_mangle_name (struct type *type, int method_id, int signature_id) |
c906108c SS |
339 | { |
340 | int mangled_name_len; | |
341 | char *mangled_name; | |
342 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
343 | struct fn_field *method = &f[signature_id]; | |
0d5cff50 | 344 | const char *field_name = TYPE_FN_FIELDLIST_NAME (type, method_id); |
1d06ead6 | 345 | const char *physname = TYPE_FN_FIELD_PHYSNAME (f, signature_id); |
0d5cff50 | 346 | const char *newname = type_name_no_tag (type); |
c906108c SS |
347 | |
348 | /* Does the form of physname indicate that it is the full mangled name | |
349 | of a constructor (not just the args)? */ | |
350 | int is_full_physname_constructor; | |
351 | ||
352 | int is_constructor; | |
015a42b4 | 353 | int is_destructor = is_destructor_name (physname); |
c906108c SS |
354 | /* Need a new type prefix. */ |
355 | char *const_prefix = method->is_const ? "C" : ""; | |
356 | char *volatile_prefix = method->is_volatile ? "V" : ""; | |
357 | char buf[20]; | |
358 | int len = (newname == NULL ? 0 : strlen (newname)); | |
359 | ||
43630227 PS |
360 | /* Nothing to do if physname already contains a fully mangled v3 abi name |
361 | or an operator name. */ | |
362 | if ((physname[0] == '_' && physname[1] == 'Z') | |
363 | || is_operator_name (field_name)) | |
235d1e03 EZ |
364 | return xstrdup (physname); |
365 | ||
015a42b4 | 366 | is_full_physname_constructor = is_constructor_name (physname); |
c906108c | 367 | |
3e43a32a MS |
368 | is_constructor = is_full_physname_constructor |
369 | || (newname && strcmp (field_name, newname) == 0); | |
c906108c SS |
370 | |
371 | if (!is_destructor) | |
c5aa993b | 372 | is_destructor = (strncmp (physname, "__dt", 4) == 0); |
c906108c SS |
373 | |
374 | if (is_destructor || is_full_physname_constructor) | |
375 | { | |
c5aa993b JM |
376 | mangled_name = (char *) xmalloc (strlen (physname) + 1); |
377 | strcpy (mangled_name, physname); | |
c906108c SS |
378 | return mangled_name; |
379 | } | |
380 | ||
381 | if (len == 0) | |
382 | { | |
8c042590 | 383 | xsnprintf (buf, sizeof (buf), "__%s%s", const_prefix, volatile_prefix); |
c906108c SS |
384 | } |
385 | else if (physname[0] == 't' || physname[0] == 'Q') | |
386 | { | |
387 | /* The physname for template and qualified methods already includes | |
c5aa993b | 388 | the class name. */ |
8c042590 | 389 | xsnprintf (buf, sizeof (buf), "__%s%s", const_prefix, volatile_prefix); |
c906108c SS |
390 | newname = NULL; |
391 | len = 0; | |
392 | } | |
393 | else | |
394 | { | |
8c042590 PM |
395 | xsnprintf (buf, sizeof (buf), "__%s%s%d", const_prefix, |
396 | volatile_prefix, len); | |
c906108c SS |
397 | } |
398 | mangled_name_len = ((is_constructor ? 0 : strlen (field_name)) | |
235d1e03 | 399 | + strlen (buf) + len + strlen (physname) + 1); |
c906108c | 400 | |
433759f7 MS |
401 | mangled_name = (char *) xmalloc (mangled_name_len); |
402 | if (is_constructor) | |
403 | mangled_name[0] = '\0'; | |
404 | else | |
405 | strcpy (mangled_name, field_name); | |
406 | ||
c906108c SS |
407 | strcat (mangled_name, buf); |
408 | /* If the class doesn't have a name, i.e. newname NULL, then we just | |
409 | mangle it using 0 for the length of the class. Thus it gets mangled | |
c378eb4e | 410 | as something starting with `::' rather than `classname::'. */ |
c906108c SS |
411 | if (newname != NULL) |
412 | strcat (mangled_name, newname); | |
413 | ||
414 | strcat (mangled_name, physname); | |
415 | return (mangled_name); | |
416 | } | |
12af6855 | 417 | |
29df156d SW |
418 | /* Initialize the cplus_specific structure. 'cplus_specific' should |
419 | only be allocated for use with cplus symbols. */ | |
420 | ||
421 | static void | |
422 | symbol_init_cplus_specific (struct general_symbol_info *gsymbol, | |
423 | struct objfile *objfile) | |
424 | { | |
425 | /* A language_specific structure should not have been previously | |
426 | initialized. */ | |
427 | gdb_assert (gsymbol->language_specific.cplus_specific == NULL); | |
428 | gdb_assert (objfile != NULL); | |
429 | ||
430 | gsymbol->language_specific.cplus_specific = | |
431 | OBSTACK_ZALLOC (&objfile->objfile_obstack, struct cplus_specific); | |
432 | } | |
433 | ||
b250c185 | 434 | /* Set the demangled name of GSYMBOL to NAME. NAME must be already |
29df156d | 435 | correctly allocated. For C++ symbols a cplus_specific struct is |
c378eb4e | 436 | allocated so OBJFILE must not be NULL. If this is a non C++ symbol |
29df156d | 437 | OBJFILE can be NULL. */ |
eca864fe | 438 | |
b250c185 SW |
439 | void |
440 | symbol_set_demangled_name (struct general_symbol_info *gsymbol, | |
cfc594ee | 441 | const char *name, |
29df156d | 442 | struct objfile *objfile) |
b250c185 | 443 | { |
29df156d SW |
444 | if (gsymbol->language == language_cplus) |
445 | { | |
446 | if (gsymbol->language_specific.cplus_specific == NULL) | |
447 | symbol_init_cplus_specific (gsymbol, objfile); | |
448 | ||
449 | gsymbol->language_specific.cplus_specific->demangled_name = name; | |
450 | } | |
451 | else | |
452 | gsymbol->language_specific.mangled_lang.demangled_name = name; | |
b250c185 SW |
453 | } |
454 | ||
455 | /* Return the demangled name of GSYMBOL. */ | |
eca864fe | 456 | |
0d5cff50 | 457 | const char * |
b250c185 SW |
458 | symbol_get_demangled_name (const struct general_symbol_info *gsymbol) |
459 | { | |
29df156d SW |
460 | if (gsymbol->language == language_cplus) |
461 | { | |
45c58896 SW |
462 | if (gsymbol->language_specific.cplus_specific != NULL) |
463 | return gsymbol->language_specific.cplus_specific->demangled_name; | |
464 | else | |
465 | return NULL; | |
29df156d SW |
466 | } |
467 | else | |
468 | return gsymbol->language_specific.mangled_lang.demangled_name; | |
b250c185 SW |
469 | } |
470 | ||
12af6855 | 471 | \f |
89aad1f9 | 472 | /* Initialize the language dependent portion of a symbol |
c378eb4e | 473 | depending upon the language for the symbol. */ |
eca864fe | 474 | |
89aad1f9 | 475 | void |
33e5013e SW |
476 | symbol_set_language (struct general_symbol_info *gsymbol, |
477 | enum language language) | |
89aad1f9 EZ |
478 | { |
479 | gsymbol->language = language; | |
33e5013e | 480 | if (gsymbol->language == language_d |
a766d390 | 481 | || gsymbol->language == language_go |
5784d15e | 482 | || gsymbol->language == language_java |
f55ee35c JK |
483 | || gsymbol->language == language_objc |
484 | || gsymbol->language == language_fortran) | |
89aad1f9 | 485 | { |
29df156d | 486 | symbol_set_demangled_name (gsymbol, NULL, NULL); |
89aad1f9 | 487 | } |
29df156d SW |
488 | else if (gsymbol->language == language_cplus) |
489 | gsymbol->language_specific.cplus_specific = NULL; | |
89aad1f9 EZ |
490 | else |
491 | { | |
492 | memset (&gsymbol->language_specific, 0, | |
493 | sizeof (gsymbol->language_specific)); | |
494 | } | |
495 | } | |
496 | ||
2de7ced7 DJ |
497 | /* Functions to initialize a symbol's mangled name. */ |
498 | ||
04a679b8 TT |
499 | /* Objects of this type are stored in the demangled name hash table. */ |
500 | struct demangled_name_entry | |
501 | { | |
9d2ceabe | 502 | const char *mangled; |
04a679b8 TT |
503 | char demangled[1]; |
504 | }; | |
505 | ||
506 | /* Hash function for the demangled name hash. */ | |
eca864fe | 507 | |
04a679b8 TT |
508 | static hashval_t |
509 | hash_demangled_name_entry (const void *data) | |
510 | { | |
511 | const struct demangled_name_entry *e = data; | |
433759f7 | 512 | |
04a679b8 TT |
513 | return htab_hash_string (e->mangled); |
514 | } | |
515 | ||
516 | /* Equality function for the demangled name hash. */ | |
eca864fe | 517 | |
04a679b8 TT |
518 | static int |
519 | eq_demangled_name_entry (const void *a, const void *b) | |
520 | { | |
521 | const struct demangled_name_entry *da = a; | |
522 | const struct demangled_name_entry *db = b; | |
433759f7 | 523 | |
04a679b8 TT |
524 | return strcmp (da->mangled, db->mangled) == 0; |
525 | } | |
526 | ||
2de7ced7 DJ |
527 | /* Create the hash table used for demangled names. Each hash entry is |
528 | a pair of strings; one for the mangled name and one for the demangled | |
529 | name. The entry is hashed via just the mangled name. */ | |
530 | ||
531 | static void | |
532 | create_demangled_names_hash (struct objfile *objfile) | |
533 | { | |
534 | /* Choose 256 as the starting size of the hash table, somewhat arbitrarily. | |
9af17804 | 535 | The hash table code will round this up to the next prime number. |
2de7ced7 DJ |
536 | Choosing a much larger table size wastes memory, and saves only about |
537 | 1% in symbol reading. */ | |
538 | ||
aa2ee5f6 | 539 | objfile->demangled_names_hash = htab_create_alloc |
04a679b8 | 540 | (256, hash_demangled_name_entry, eq_demangled_name_entry, |
aa2ee5f6 | 541 | NULL, xcalloc, xfree); |
2de7ced7 | 542 | } |
12af6855 | 543 | |
2de7ced7 | 544 | /* Try to determine the demangled name for a symbol, based on the |
12af6855 JB |
545 | language of that symbol. If the language is set to language_auto, |
546 | it will attempt to find any demangling algorithm that works and | |
2de7ced7 DJ |
547 | then set the language appropriately. The returned name is allocated |
548 | by the demangler and should be xfree'd. */ | |
12af6855 | 549 | |
2de7ced7 DJ |
550 | static char * |
551 | symbol_find_demangled_name (struct general_symbol_info *gsymbol, | |
552 | const char *mangled) | |
12af6855 | 553 | { |
12af6855 JB |
554 | char *demangled = NULL; |
555 | ||
556 | if (gsymbol->language == language_unknown) | |
557 | gsymbol->language = language_auto; | |
1bae87b9 AF |
558 | |
559 | if (gsymbol->language == language_objc | |
560 | || gsymbol->language == language_auto) | |
561 | { | |
562 | demangled = | |
563 | objc_demangle (mangled, 0); | |
564 | if (demangled != NULL) | |
565 | { | |
566 | gsymbol->language = language_objc; | |
567 | return demangled; | |
568 | } | |
569 | } | |
12af6855 JB |
570 | if (gsymbol->language == language_cplus |
571 | || gsymbol->language == language_auto) | |
572 | { | |
573 | demangled = | |
3f542ed1 | 574 | cplus_demangle (mangled, DMGL_PARAMS | DMGL_ANSI); |
12af6855 | 575 | if (demangled != NULL) |
2de7ced7 DJ |
576 | { |
577 | gsymbol->language = language_cplus; | |
578 | return demangled; | |
579 | } | |
12af6855 JB |
580 | } |
581 | if (gsymbol->language == language_java) | |
582 | { | |
583 | demangled = | |
2de7ced7 | 584 | cplus_demangle (mangled, |
12af6855 JB |
585 | DMGL_PARAMS | DMGL_ANSI | DMGL_JAVA); |
586 | if (demangled != NULL) | |
2de7ced7 DJ |
587 | { |
588 | gsymbol->language = language_java; | |
589 | return demangled; | |
590 | } | |
591 | } | |
6aecb9c2 JB |
592 | if (gsymbol->language == language_d |
593 | || gsymbol->language == language_auto) | |
594 | { | |
595 | demangled = d_demangle(mangled, 0); | |
596 | if (demangled != NULL) | |
597 | { | |
598 | gsymbol->language = language_d; | |
599 | return demangled; | |
600 | } | |
601 | } | |
a766d390 DE |
602 | /* FIXME(dje): Continually adding languages here is clumsy. |
603 | Better to just call la_demangle if !auto, and if auto then call | |
604 | a utility routine that tries successive languages in turn and reports | |
605 | which one it finds. I realize the la_demangle options may be different | |
606 | for different languages but there's already a FIXME for that. */ | |
607 | if (gsymbol->language == language_go | |
608 | || gsymbol->language == language_auto) | |
609 | { | |
610 | demangled = go_demangle (mangled, 0); | |
611 | if (demangled != NULL) | |
612 | { | |
613 | gsymbol->language = language_go; | |
614 | return demangled; | |
615 | } | |
616 | } | |
617 | ||
f55ee35c JK |
618 | /* We could support `gsymbol->language == language_fortran' here to provide |
619 | module namespaces also for inferiors with only minimal symbol table (ELF | |
620 | symbols). Just the mangling standard is not standardized across compilers | |
621 | and there is no DW_AT_producer available for inferiors with only the ELF | |
622 | symbols to check the mangling kind. */ | |
2de7ced7 DJ |
623 | return NULL; |
624 | } | |
625 | ||
980cae7a | 626 | /* Set both the mangled and demangled (if any) names for GSYMBOL based |
04a679b8 TT |
627 | on LINKAGE_NAME and LEN. Ordinarily, NAME is copied onto the |
628 | objfile's obstack; but if COPY_NAME is 0 and if NAME is | |
629 | NUL-terminated, then this function assumes that NAME is already | |
630 | correctly saved (either permanently or with a lifetime tied to the | |
631 | objfile), and it will not be copied. | |
632 | ||
633 | The hash table corresponding to OBJFILE is used, and the memory | |
634 | comes from that objfile's objfile_obstack. LINKAGE_NAME is copied, | |
635 | so the pointer can be discarded after calling this function. */ | |
2de7ced7 | 636 | |
d2a52b27 DC |
637 | /* We have to be careful when dealing with Java names: when we run |
638 | into a Java minimal symbol, we don't know it's a Java symbol, so it | |
639 | gets demangled as a C++ name. This is unfortunate, but there's not | |
640 | much we can do about it: but when demangling partial symbols and | |
641 | regular symbols, we'd better not reuse the wrong demangled name. | |
642 | (See PR gdb/1039.) We solve this by putting a distinctive prefix | |
643 | on Java names when storing them in the hash table. */ | |
644 | ||
645 | /* FIXME: carlton/2003-03-13: This is an unfortunate situation. I | |
646 | don't mind the Java prefix so much: different languages have | |
647 | different demangling requirements, so it's only natural that we | |
648 | need to keep language data around in our demangling cache. But | |
649 | it's not good that the minimal symbol has the wrong demangled name. | |
650 | Unfortunately, I can't think of any easy solution to that | |
651 | problem. */ | |
652 | ||
653 | #define JAVA_PREFIX "##JAVA$$" | |
654 | #define JAVA_PREFIX_LEN 8 | |
655 | ||
2de7ced7 DJ |
656 | void |
657 | symbol_set_names (struct general_symbol_info *gsymbol, | |
04a679b8 TT |
658 | const char *linkage_name, int len, int copy_name, |
659 | struct objfile *objfile) | |
2de7ced7 | 660 | { |
04a679b8 | 661 | struct demangled_name_entry **slot; |
980cae7a DC |
662 | /* A 0-terminated copy of the linkage name. */ |
663 | const char *linkage_name_copy; | |
d2a52b27 DC |
664 | /* A copy of the linkage name that might have a special Java prefix |
665 | added to it, for use when looking names up in the hash table. */ | |
666 | const char *lookup_name; | |
667 | /* The length of lookup_name. */ | |
668 | int lookup_len; | |
04a679b8 | 669 | struct demangled_name_entry entry; |
2de7ced7 | 670 | |
b06ead72 JB |
671 | if (gsymbol->language == language_ada) |
672 | { | |
673 | /* In Ada, we do the symbol lookups using the mangled name, so | |
674 | we can save some space by not storing the demangled name. | |
675 | ||
676 | As a side note, we have also observed some overlap between | |
677 | the C++ mangling and Ada mangling, similarly to what has | |
678 | been observed with Java. Because we don't store the demangled | |
679 | name with the symbol, we don't need to use the same trick | |
680 | as Java. */ | |
04a679b8 | 681 | if (!copy_name) |
0d5cff50 | 682 | gsymbol->name = linkage_name; |
04a679b8 TT |
683 | else |
684 | { | |
0d5cff50 DE |
685 | char *name = obstack_alloc (&objfile->objfile_obstack, len + 1); |
686 | ||
687 | memcpy (name, linkage_name, len); | |
688 | name[len] = '\0'; | |
689 | gsymbol->name = name; | |
04a679b8 | 690 | } |
29df156d | 691 | symbol_set_demangled_name (gsymbol, NULL, NULL); |
b06ead72 JB |
692 | |
693 | return; | |
694 | } | |
695 | ||
04a679b8 TT |
696 | if (objfile->demangled_names_hash == NULL) |
697 | create_demangled_names_hash (objfile); | |
698 | ||
980cae7a DC |
699 | /* The stabs reader generally provides names that are not |
700 | NUL-terminated; most of the other readers don't do this, so we | |
d2a52b27 DC |
701 | can just use the given copy, unless we're in the Java case. */ |
702 | if (gsymbol->language == language_java) | |
703 | { | |
704 | char *alloc_name; | |
d2a52b27 | 705 | |
433759f7 | 706 | lookup_len = len + JAVA_PREFIX_LEN; |
d2a52b27 DC |
707 | alloc_name = alloca (lookup_len + 1); |
708 | memcpy (alloc_name, JAVA_PREFIX, JAVA_PREFIX_LEN); | |
709 | memcpy (alloc_name + JAVA_PREFIX_LEN, linkage_name, len); | |
710 | alloc_name[lookup_len] = '\0'; | |
711 | ||
712 | lookup_name = alloc_name; | |
713 | linkage_name_copy = alloc_name + JAVA_PREFIX_LEN; | |
714 | } | |
715 | else if (linkage_name[len] != '\0') | |
2de7ced7 | 716 | { |
980cae7a DC |
717 | char *alloc_name; |
718 | ||
433759f7 | 719 | lookup_len = len; |
d2a52b27 | 720 | alloc_name = alloca (lookup_len + 1); |
980cae7a | 721 | memcpy (alloc_name, linkage_name, len); |
d2a52b27 | 722 | alloc_name[lookup_len] = '\0'; |
980cae7a | 723 | |
d2a52b27 | 724 | lookup_name = alloc_name; |
980cae7a | 725 | linkage_name_copy = alloc_name; |
2de7ced7 DJ |
726 | } |
727 | else | |
980cae7a | 728 | { |
d2a52b27 DC |
729 | lookup_len = len; |
730 | lookup_name = linkage_name; | |
980cae7a DC |
731 | linkage_name_copy = linkage_name; |
732 | } | |
2de7ced7 | 733 | |
9d2ceabe | 734 | entry.mangled = lookup_name; |
04a679b8 TT |
735 | slot = ((struct demangled_name_entry **) |
736 | htab_find_slot (objfile->demangled_names_hash, | |
737 | &entry, INSERT)); | |
2de7ced7 DJ |
738 | |
739 | /* If this name is not in the hash table, add it. */ | |
a766d390 DE |
740 | if (*slot == NULL |
741 | /* A C version of the symbol may have already snuck into the table. | |
742 | This happens to, e.g., main.init (__go_init_main). Cope. */ | |
743 | || (gsymbol->language == language_go | |
744 | && (*slot)->demangled[0] == '\0')) | |
2de7ced7 | 745 | { |
980cae7a DC |
746 | char *demangled_name = symbol_find_demangled_name (gsymbol, |
747 | linkage_name_copy); | |
2de7ced7 DJ |
748 | int demangled_len = demangled_name ? strlen (demangled_name) : 0; |
749 | ||
04a679b8 TT |
750 | /* Suppose we have demangled_name==NULL, copy_name==0, and |
751 | lookup_name==linkage_name. In this case, we already have the | |
752 | mangled name saved, and we don't have a demangled name. So, | |
753 | you might think we could save a little space by not recording | |
754 | this in the hash table at all. | |
755 | ||
756 | It turns out that it is actually important to still save such | |
757 | an entry in the hash table, because storing this name gives | |
705b5767 | 758 | us better bcache hit rates for partial symbols. */ |
04a679b8 TT |
759 | if (!copy_name && lookup_name == linkage_name) |
760 | { | |
761 | *slot = obstack_alloc (&objfile->objfile_obstack, | |
762 | offsetof (struct demangled_name_entry, | |
763 | demangled) | |
764 | + demangled_len + 1); | |
9d2ceabe | 765 | (*slot)->mangled = lookup_name; |
04a679b8 TT |
766 | } |
767 | else | |
768 | { | |
9d2ceabe TT |
769 | char *mangled_ptr; |
770 | ||
04a679b8 TT |
771 | /* If we must copy the mangled name, put it directly after |
772 | the demangled name so we can have a single | |
773 | allocation. */ | |
774 | *slot = obstack_alloc (&objfile->objfile_obstack, | |
775 | offsetof (struct demangled_name_entry, | |
776 | demangled) | |
777 | + lookup_len + demangled_len + 2); | |
9d2ceabe TT |
778 | mangled_ptr = &((*slot)->demangled[demangled_len + 1]); |
779 | strcpy (mangled_ptr, lookup_name); | |
780 | (*slot)->mangled = mangled_ptr; | |
04a679b8 TT |
781 | } |
782 | ||
980cae7a | 783 | if (demangled_name != NULL) |
2de7ced7 | 784 | { |
04a679b8 | 785 | strcpy ((*slot)->demangled, demangled_name); |
2de7ced7 DJ |
786 | xfree (demangled_name); |
787 | } | |
788 | else | |
04a679b8 | 789 | (*slot)->demangled[0] = '\0'; |
2de7ced7 DJ |
790 | } |
791 | ||
72dcaf82 | 792 | gsymbol->name = (*slot)->mangled + lookup_len - len; |
04a679b8 | 793 | if ((*slot)->demangled[0] != '\0') |
29df156d | 794 | symbol_set_demangled_name (gsymbol, (*slot)->demangled, objfile); |
2de7ced7 | 795 | else |
29df156d | 796 | symbol_set_demangled_name (gsymbol, NULL, objfile); |
2de7ced7 DJ |
797 | } |
798 | ||
22abf04a DC |
799 | /* Return the source code name of a symbol. In languages where |
800 | demangling is necessary, this is the demangled name. */ | |
801 | ||
0d5cff50 | 802 | const char * |
22abf04a DC |
803 | symbol_natural_name (const struct general_symbol_info *gsymbol) |
804 | { | |
9af17804 | 805 | switch (gsymbol->language) |
22abf04a | 806 | { |
1f8173e6 | 807 | case language_cplus: |
6aecb9c2 | 808 | case language_d: |
a766d390 | 809 | case language_go: |
1f8173e6 PH |
810 | case language_java: |
811 | case language_objc: | |
f55ee35c | 812 | case language_fortran: |
b250c185 SW |
813 | if (symbol_get_demangled_name (gsymbol) != NULL) |
814 | return symbol_get_demangled_name (gsymbol); | |
1f8173e6 PH |
815 | break; |
816 | case language_ada: | |
b250c185 SW |
817 | if (symbol_get_demangled_name (gsymbol) != NULL) |
818 | return symbol_get_demangled_name (gsymbol); | |
1f8173e6 PH |
819 | else |
820 | return ada_decode_symbol (gsymbol); | |
821 | break; | |
822 | default: | |
823 | break; | |
22abf04a | 824 | } |
1f8173e6 | 825 | return gsymbol->name; |
22abf04a DC |
826 | } |
827 | ||
9cc0d196 | 828 | /* Return the demangled name for a symbol based on the language for |
c378eb4e | 829 | that symbol. If no demangled name exists, return NULL. */ |
eca864fe | 830 | |
0d5cff50 | 831 | const char * |
df8a16a1 | 832 | symbol_demangled_name (const struct general_symbol_info *gsymbol) |
9cc0d196 | 833 | { |
c6e5ee5e SDJ |
834 | const char *dem_name = NULL; |
835 | ||
9af17804 | 836 | switch (gsymbol->language) |
1f8173e6 PH |
837 | { |
838 | case language_cplus: | |
6aecb9c2 | 839 | case language_d: |
a766d390 | 840 | case language_go: |
1f8173e6 PH |
841 | case language_java: |
842 | case language_objc: | |
f55ee35c | 843 | case language_fortran: |
c6e5ee5e | 844 | dem_name = symbol_get_demangled_name (gsymbol); |
1f8173e6 PH |
845 | break; |
846 | case language_ada: | |
c6e5ee5e SDJ |
847 | dem_name = symbol_get_demangled_name (gsymbol); |
848 | if (dem_name == NULL) | |
849 | dem_name = ada_decode_symbol (gsymbol); | |
1f8173e6 PH |
850 | break; |
851 | default: | |
852 | break; | |
853 | } | |
c6e5ee5e | 854 | return dem_name; |
9cc0d196 | 855 | } |
fe39c653 | 856 | |
4725b721 PH |
857 | /* Return the search name of a symbol---generally the demangled or |
858 | linkage name of the symbol, depending on how it will be searched for. | |
9af17804 | 859 | If there is no distinct demangled name, then returns the same value |
c378eb4e | 860 | (same pointer) as SYMBOL_LINKAGE_NAME. */ |
eca864fe | 861 | |
0d5cff50 | 862 | const char * |
fc062ac6 JB |
863 | symbol_search_name (const struct general_symbol_info *gsymbol) |
864 | { | |
1f8173e6 PH |
865 | if (gsymbol->language == language_ada) |
866 | return gsymbol->name; | |
867 | else | |
868 | return symbol_natural_name (gsymbol); | |
4725b721 PH |
869 | } |
870 | ||
fe39c653 | 871 | /* Initialize the structure fields to zero values. */ |
eca864fe | 872 | |
fe39c653 EZ |
873 | void |
874 | init_sal (struct symtab_and_line *sal) | |
875 | { | |
6c95b8df | 876 | sal->pspace = NULL; |
fe39c653 EZ |
877 | sal->symtab = 0; |
878 | sal->section = 0; | |
879 | sal->line = 0; | |
880 | sal->pc = 0; | |
881 | sal->end = 0; | |
ed0616c6 VP |
882 | sal->explicit_pc = 0; |
883 | sal->explicit_line = 0; | |
55aa24fb | 884 | sal->probe = NULL; |
fe39c653 | 885 | } |
c906108c SS |
886 | \f |
887 | ||
94277a38 DJ |
888 | /* Return 1 if the two sections are the same, or if they could |
889 | plausibly be copies of each other, one in an original object | |
890 | file and another in a separated debug file. */ | |
891 | ||
892 | int | |
714835d5 UW |
893 | matching_obj_sections (struct obj_section *obj_first, |
894 | struct obj_section *obj_second) | |
94277a38 | 895 | { |
714835d5 UW |
896 | asection *first = obj_first? obj_first->the_bfd_section : NULL; |
897 | asection *second = obj_second? obj_second->the_bfd_section : NULL; | |
94277a38 DJ |
898 | struct objfile *obj; |
899 | ||
900 | /* If they're the same section, then they match. */ | |
901 | if (first == second) | |
902 | return 1; | |
903 | ||
904 | /* If either is NULL, give up. */ | |
905 | if (first == NULL || second == NULL) | |
906 | return 0; | |
907 | ||
908 | /* This doesn't apply to absolute symbols. */ | |
909 | if (first->owner == NULL || second->owner == NULL) | |
910 | return 0; | |
911 | ||
912 | /* If they're in the same object file, they must be different sections. */ | |
913 | if (first->owner == second->owner) | |
914 | return 0; | |
915 | ||
916 | /* Check whether the two sections are potentially corresponding. They must | |
917 | have the same size, address, and name. We can't compare section indexes, | |
918 | which would be more reliable, because some sections may have been | |
919 | stripped. */ | |
920 | if (bfd_get_section_size (first) != bfd_get_section_size (second)) | |
921 | return 0; | |
922 | ||
818f79f6 | 923 | /* In-memory addresses may start at a different offset, relativize them. */ |
94277a38 | 924 | if (bfd_get_section_vma (first->owner, first) |
818f79f6 DJ |
925 | - bfd_get_start_address (first->owner) |
926 | != bfd_get_section_vma (second->owner, second) | |
927 | - bfd_get_start_address (second->owner)) | |
94277a38 DJ |
928 | return 0; |
929 | ||
930 | if (bfd_get_section_name (first->owner, first) == NULL | |
931 | || bfd_get_section_name (second->owner, second) == NULL | |
932 | || strcmp (bfd_get_section_name (first->owner, first), | |
933 | bfd_get_section_name (second->owner, second)) != 0) | |
934 | return 0; | |
935 | ||
936 | /* Otherwise check that they are in corresponding objfiles. */ | |
937 | ||
938 | ALL_OBJFILES (obj) | |
939 | if (obj->obfd == first->owner) | |
940 | break; | |
941 | gdb_assert (obj != NULL); | |
942 | ||
943 | if (obj->separate_debug_objfile != NULL | |
944 | && obj->separate_debug_objfile->obfd == second->owner) | |
945 | return 1; | |
946 | if (obj->separate_debug_objfile_backlink != NULL | |
947 | && obj->separate_debug_objfile_backlink->obfd == second->owner) | |
948 | return 1; | |
949 | ||
950 | return 0; | |
951 | } | |
c5aa993b | 952 | |
ccefe4c4 TT |
953 | struct symtab * |
954 | find_pc_sect_symtab_via_partial (CORE_ADDR pc, struct obj_section *section) | |
c906108c | 955 | { |
52f0bd74 | 956 | struct objfile *objfile; |
8a48e967 DJ |
957 | struct minimal_symbol *msymbol; |
958 | ||
959 | /* If we know that this is not a text address, return failure. This is | |
960 | necessary because we loop based on texthigh and textlow, which do | |
961 | not include the data ranges. */ | |
962 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); | |
963 | if (msymbol | |
712f90be TT |
964 | && (MSYMBOL_TYPE (msymbol) == mst_data |
965 | || MSYMBOL_TYPE (msymbol) == mst_bss | |
966 | || MSYMBOL_TYPE (msymbol) == mst_abs | |
967 | || MSYMBOL_TYPE (msymbol) == mst_file_data | |
968 | || MSYMBOL_TYPE (msymbol) == mst_file_bss)) | |
8a48e967 | 969 | return NULL; |
c906108c | 970 | |
ff013f42 | 971 | ALL_OBJFILES (objfile) |
ccefe4c4 TT |
972 | { |
973 | struct symtab *result = NULL; | |
433759f7 | 974 | |
ccefe4c4 TT |
975 | if (objfile->sf) |
976 | result = objfile->sf->qf->find_pc_sect_symtab (objfile, msymbol, | |
977 | pc, section, 0); | |
978 | if (result) | |
979 | return result; | |
980 | } | |
ff013f42 JK |
981 | |
982 | return NULL; | |
c906108c | 983 | } |
c906108c SS |
984 | \f |
985 | /* Debug symbols usually don't have section information. We need to dig that | |
986 | out of the minimal symbols and stash that in the debug symbol. */ | |
987 | ||
ccefe4c4 | 988 | void |
907fc202 UW |
989 | fixup_section (struct general_symbol_info *ginfo, |
990 | CORE_ADDR addr, struct objfile *objfile) | |
c906108c SS |
991 | { |
992 | struct minimal_symbol *msym; | |
c906108c | 993 | |
bccdca4a UW |
994 | /* First, check whether a minimal symbol with the same name exists |
995 | and points to the same address. The address check is required | |
996 | e.g. on PowerPC64, where the minimal symbol for a function will | |
997 | point to the function descriptor, while the debug symbol will | |
998 | point to the actual function code. */ | |
907fc202 UW |
999 | msym = lookup_minimal_symbol_by_pc_name (addr, ginfo->name, objfile); |
1000 | if (msym) | |
7a78d0ee | 1001 | { |
714835d5 | 1002 | ginfo->obj_section = SYMBOL_OBJ_SECTION (msym); |
7a78d0ee KB |
1003 | ginfo->section = SYMBOL_SECTION (msym); |
1004 | } | |
907fc202 | 1005 | else |
19e2d14b KB |
1006 | { |
1007 | /* Static, function-local variables do appear in the linker | |
1008 | (minimal) symbols, but are frequently given names that won't | |
1009 | be found via lookup_minimal_symbol(). E.g., it has been | |
1010 | observed in frv-uclinux (ELF) executables that a static, | |
1011 | function-local variable named "foo" might appear in the | |
1012 | linker symbols as "foo.6" or "foo.3". Thus, there is no | |
1013 | point in attempting to extend the lookup-by-name mechanism to | |
1014 | handle this case due to the fact that there can be multiple | |
1015 | names. | |
9af17804 | 1016 | |
19e2d14b KB |
1017 | So, instead, search the section table when lookup by name has |
1018 | failed. The ``addr'' and ``endaddr'' fields may have already | |
1019 | been relocated. If so, the relocation offset (i.e. the | |
1020 | ANOFFSET value) needs to be subtracted from these values when | |
1021 | performing the comparison. We unconditionally subtract it, | |
1022 | because, when no relocation has been performed, the ANOFFSET | |
1023 | value will simply be zero. | |
9af17804 | 1024 | |
19e2d14b KB |
1025 | The address of the symbol whose section we're fixing up HAS |
1026 | NOT BEEN adjusted (relocated) yet. It can't have been since | |
1027 | the section isn't yet known and knowing the section is | |
1028 | necessary in order to add the correct relocation value. In | |
1029 | other words, we wouldn't even be in this function (attempting | |
1030 | to compute the section) if it were already known. | |
1031 | ||
1032 | Note that it is possible to search the minimal symbols | |
1033 | (subtracting the relocation value if necessary) to find the | |
1034 | matching minimal symbol, but this is overkill and much less | |
1035 | efficient. It is not necessary to find the matching minimal | |
9af17804 DE |
1036 | symbol, only its section. |
1037 | ||
19e2d14b KB |
1038 | Note that this technique (of doing a section table search) |
1039 | can fail when unrelocated section addresses overlap. For | |
1040 | this reason, we still attempt a lookup by name prior to doing | |
1041 | a search of the section table. */ | |
9af17804 | 1042 | |
19e2d14b | 1043 | struct obj_section *s; |
433759f7 | 1044 | |
19e2d14b KB |
1045 | ALL_OBJFILE_OSECTIONS (objfile, s) |
1046 | { | |
1047 | int idx = s->the_bfd_section->index; | |
1048 | CORE_ADDR offset = ANOFFSET (objfile->section_offsets, idx); | |
1049 | ||
f1f6aadf PA |
1050 | if (obj_section_addr (s) - offset <= addr |
1051 | && addr < obj_section_endaddr (s) - offset) | |
19e2d14b | 1052 | { |
714835d5 | 1053 | ginfo->obj_section = s; |
19e2d14b KB |
1054 | ginfo->section = idx; |
1055 | return; | |
1056 | } | |
1057 | } | |
1058 | } | |
c906108c SS |
1059 | } |
1060 | ||
1061 | struct symbol * | |
fba45db2 | 1062 | fixup_symbol_section (struct symbol *sym, struct objfile *objfile) |
c906108c | 1063 | { |
907fc202 UW |
1064 | CORE_ADDR addr; |
1065 | ||
c906108c SS |
1066 | if (!sym) |
1067 | return NULL; | |
1068 | ||
714835d5 | 1069 | if (SYMBOL_OBJ_SECTION (sym)) |
c906108c SS |
1070 | return sym; |
1071 | ||
907fc202 UW |
1072 | /* We either have an OBJFILE, or we can get at it from the sym's |
1073 | symtab. Anything else is a bug. */ | |
1074 | gdb_assert (objfile || SYMBOL_SYMTAB (sym)); | |
1075 | ||
1076 | if (objfile == NULL) | |
1077 | objfile = SYMBOL_SYMTAB (sym)->objfile; | |
1078 | ||
1079 | /* We should have an objfile by now. */ | |
1080 | gdb_assert (objfile); | |
1081 | ||
1082 | switch (SYMBOL_CLASS (sym)) | |
1083 | { | |
1084 | case LOC_STATIC: | |
1085 | case LOC_LABEL: | |
907fc202 UW |
1086 | addr = SYMBOL_VALUE_ADDRESS (sym); |
1087 | break; | |
1088 | case LOC_BLOCK: | |
1089 | addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); | |
1090 | break; | |
1091 | ||
1092 | default: | |
1093 | /* Nothing else will be listed in the minsyms -- no use looking | |
1094 | it up. */ | |
1095 | return sym; | |
1096 | } | |
1097 | ||
1098 | fixup_section (&sym->ginfo, addr, objfile); | |
c906108c SS |
1099 | |
1100 | return sym; | |
1101 | } | |
1102 | ||
f8eba3c6 TT |
1103 | /* Compute the demangled form of NAME as used by the various symbol |
1104 | lookup functions. The result is stored in *RESULT_NAME. Returns a | |
1105 | cleanup which can be used to clean up the result. | |
1106 | ||
1107 | For Ada, this function just sets *RESULT_NAME to NAME, unmodified. | |
1108 | Normally, Ada symbol lookups are performed using the encoded name | |
1109 | rather than the demangled name, and so it might seem to make sense | |
1110 | for this function to return an encoded version of NAME. | |
1111 | Unfortunately, we cannot do this, because this function is used in | |
1112 | circumstances where it is not appropriate to try to encode NAME. | |
1113 | For instance, when displaying the frame info, we demangle the name | |
1114 | of each parameter, and then perform a symbol lookup inside our | |
1115 | function using that demangled name. In Ada, certain functions | |
1116 | have internally-generated parameters whose name contain uppercase | |
1117 | characters. Encoding those name would result in those uppercase | |
1118 | characters to become lowercase, and thus cause the symbol lookup | |
1119 | to fail. */ | |
c906108c | 1120 | |
f8eba3c6 TT |
1121 | struct cleanup * |
1122 | demangle_for_lookup (const char *name, enum language lang, | |
1123 | const char **result_name) | |
c906108c | 1124 | { |
729051e6 DJ |
1125 | char *demangled_name = NULL; |
1126 | const char *modified_name = NULL; | |
9ee6bb93 | 1127 | struct cleanup *cleanup = make_cleanup (null_cleanup, 0); |
c906108c | 1128 | |
729051e6 DJ |
1129 | modified_name = name; |
1130 | ||
a766d390 | 1131 | /* If we are using C++, D, Go, or Java, demangle the name before doing a |
c378eb4e | 1132 | lookup, so we can always binary search. */ |
53c5240f | 1133 | if (lang == language_cplus) |
729051e6 DJ |
1134 | { |
1135 | demangled_name = cplus_demangle (name, DMGL_ANSI | DMGL_PARAMS); | |
1136 | if (demangled_name) | |
1137 | { | |
729051e6 | 1138 | modified_name = demangled_name; |
9ee6bb93 | 1139 | make_cleanup (xfree, demangled_name); |
729051e6 | 1140 | } |
71c25dea TT |
1141 | else |
1142 | { | |
1143 | /* If we were given a non-mangled name, canonicalize it | |
1144 | according to the language (so far only for C++). */ | |
1145 | demangled_name = cp_canonicalize_string (name); | |
1146 | if (demangled_name) | |
1147 | { | |
1148 | modified_name = demangled_name; | |
1149 | make_cleanup (xfree, demangled_name); | |
1150 | } | |
1151 | } | |
729051e6 | 1152 | } |
53c5240f | 1153 | else if (lang == language_java) |
987504bb | 1154 | { |
9af17804 | 1155 | demangled_name = cplus_demangle (name, |
987504bb JJ |
1156 | DMGL_ANSI | DMGL_PARAMS | DMGL_JAVA); |
1157 | if (demangled_name) | |
1158 | { | |
987504bb | 1159 | modified_name = demangled_name; |
9ee6bb93 | 1160 | make_cleanup (xfree, demangled_name); |
987504bb JJ |
1161 | } |
1162 | } | |
6aecb9c2 JB |
1163 | else if (lang == language_d) |
1164 | { | |
1165 | demangled_name = d_demangle (name, 0); | |
1166 | if (demangled_name) | |
1167 | { | |
1168 | modified_name = demangled_name; | |
1169 | make_cleanup (xfree, demangled_name); | |
1170 | } | |
1171 | } | |
a766d390 DE |
1172 | else if (lang == language_go) |
1173 | { | |
1174 | demangled_name = go_demangle (name, 0); | |
1175 | if (demangled_name) | |
1176 | { | |
1177 | modified_name = demangled_name; | |
1178 | make_cleanup (xfree, demangled_name); | |
1179 | } | |
1180 | } | |
729051e6 | 1181 | |
f8eba3c6 TT |
1182 | *result_name = modified_name; |
1183 | return cleanup; | |
1184 | } | |
1185 | ||
1186 | /* Find the definition for a specified symbol name NAME | |
1187 | in domain DOMAIN, visible from lexical block BLOCK. | |
1188 | Returns the struct symbol pointer, or zero if no symbol is found. | |
1189 | C++: if IS_A_FIELD_OF_THIS is nonzero on entry, check to see if | |
1190 | NAME is a field of the current implied argument `this'. If so set | |
1191 | *IS_A_FIELD_OF_THIS to 1, otherwise set it to zero. | |
1192 | BLOCK_FOUND is set to the block in which NAME is found (in the case of | |
1193 | a field of `this', value_of_this sets BLOCK_FOUND to the proper value.) */ | |
1194 | ||
7e082072 DE |
1195 | /* This function (or rather its subordinates) have a bunch of loops and |
1196 | it would seem to be attractive to put in some QUIT's (though I'm not really | |
1197 | sure whether it can run long enough to be really important). But there | |
f8eba3c6 | 1198 | are a few calls for which it would appear to be bad news to quit |
7e082072 | 1199 | out of here: e.g., find_proc_desc in alpha-mdebug-tdep.c. (Note |
f8eba3c6 TT |
1200 | that there is C++ code below which can error(), but that probably |
1201 | doesn't affect these calls since they are looking for a known | |
1202 | variable and thus can probably assume it will never hit the C++ | |
1203 | code). */ | |
1204 | ||
1205 | struct symbol * | |
1206 | lookup_symbol_in_language (const char *name, const struct block *block, | |
1207 | const domain_enum domain, enum language lang, | |
1993b719 | 1208 | struct field_of_this_result *is_a_field_of_this) |
f8eba3c6 TT |
1209 | { |
1210 | const char *modified_name; | |
1211 | struct symbol *returnval; | |
1212 | struct cleanup *cleanup = demangle_for_lookup (name, lang, &modified_name); | |
1213 | ||
94af9270 | 1214 | returnval = lookup_symbol_aux (modified_name, block, domain, lang, |
774b6a14 | 1215 | is_a_field_of_this); |
9ee6bb93 | 1216 | do_cleanups (cleanup); |
fba7f19c | 1217 | |
9af17804 | 1218 | return returnval; |
fba7f19c EZ |
1219 | } |
1220 | ||
53c5240f PA |
1221 | /* Behave like lookup_symbol_in_language, but performed with the |
1222 | current language. */ | |
1223 | ||
1224 | struct symbol * | |
1225 | lookup_symbol (const char *name, const struct block *block, | |
1993b719 TT |
1226 | domain_enum domain, |
1227 | struct field_of_this_result *is_a_field_of_this) | |
53c5240f PA |
1228 | { |
1229 | return lookup_symbol_in_language (name, block, domain, | |
1230 | current_language->la_language, | |
2570f2b7 | 1231 | is_a_field_of_this); |
53c5240f PA |
1232 | } |
1233 | ||
66a17cb6 TT |
1234 | /* Look up the `this' symbol for LANG in BLOCK. Return the symbol if |
1235 | found, or NULL if not found. */ | |
1236 | ||
1237 | struct symbol * | |
1238 | lookup_language_this (const struct language_defn *lang, | |
1239 | const struct block *block) | |
1240 | { | |
1241 | if (lang->la_name_of_this == NULL || block == NULL) | |
1242 | return NULL; | |
1243 | ||
03de6823 | 1244 | while (block) |
66a17cb6 TT |
1245 | { |
1246 | struct symbol *sym; | |
1247 | ||
1248 | sym = lookup_block_symbol (block, lang->la_name_of_this, VAR_DOMAIN); | |
1249 | if (sym != NULL) | |
f149aabd TT |
1250 | { |
1251 | block_found = block; | |
1252 | return sym; | |
1253 | } | |
66a17cb6 | 1254 | if (BLOCK_FUNCTION (block)) |
03de6823 | 1255 | break; |
66a17cb6 TT |
1256 | block = BLOCK_SUPERBLOCK (block); |
1257 | } | |
03de6823 TT |
1258 | |
1259 | return NULL; | |
66a17cb6 TT |
1260 | } |
1261 | ||
2dc3df72 TT |
1262 | /* Given TYPE, a structure/union, |
1263 | return 1 if the component named NAME from the ultimate target | |
1264 | structure/union is defined, otherwise, return 0. */ | |
1265 | ||
1266 | static int | |
1993b719 TT |
1267 | check_field (struct type *type, const char *name, |
1268 | struct field_of_this_result *is_a_field_of_this) | |
2dc3df72 TT |
1269 | { |
1270 | int i; | |
1271 | ||
1272 | /* The type may be a stub. */ | |
1273 | CHECK_TYPEDEF (type); | |
1274 | ||
1275 | for (i = TYPE_NFIELDS (type) - 1; i >= TYPE_N_BASECLASSES (type); i--) | |
1276 | { | |
1277 | const char *t_field_name = TYPE_FIELD_NAME (type, i); | |
1278 | ||
1279 | if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) | |
1993b719 TT |
1280 | { |
1281 | is_a_field_of_this->type = type; | |
1282 | is_a_field_of_this->field = &TYPE_FIELD (type, i); | |
1283 | return 1; | |
1284 | } | |
2dc3df72 TT |
1285 | } |
1286 | ||
1287 | /* C++: If it was not found as a data field, then try to return it | |
1288 | as a pointer to a method. */ | |
1289 | ||
1290 | for (i = TYPE_NFN_FIELDS (type) - 1; i >= 0; --i) | |
1291 | { | |
1292 | if (strcmp_iw (TYPE_FN_FIELDLIST_NAME (type, i), name) == 0) | |
1993b719 TT |
1293 | { |
1294 | is_a_field_of_this->type = type; | |
1295 | is_a_field_of_this->fn_field = &TYPE_FN_FIELDLIST (type, i); | |
1296 | return 1; | |
1297 | } | |
2dc3df72 TT |
1298 | } |
1299 | ||
1300 | for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) | |
1993b719 | 1301 | if (check_field (TYPE_BASECLASS (type, i), name, is_a_field_of_this)) |
2dc3df72 TT |
1302 | return 1; |
1303 | ||
1304 | return 0; | |
1305 | } | |
1306 | ||
53c5240f | 1307 | /* Behave like lookup_symbol except that NAME is the natural name |
7e082072 | 1308 | (e.g., demangled name) of the symbol that we're looking for. */ |
5ad1c190 | 1309 | |
fba7f19c | 1310 | static struct symbol * |
94af9270 KS |
1311 | lookup_symbol_aux (const char *name, const struct block *block, |
1312 | const domain_enum domain, enum language language, | |
1993b719 | 1313 | struct field_of_this_result *is_a_field_of_this) |
fba7f19c | 1314 | { |
8155455b | 1315 | struct symbol *sym; |
53c5240f | 1316 | const struct language_defn *langdef; |
406bc4de | 1317 | |
9a146a11 EZ |
1318 | /* Make sure we do something sensible with is_a_field_of_this, since |
1319 | the callers that set this parameter to some non-null value will | |
1993b719 TT |
1320 | certainly use it later. If we don't set it, the contents of |
1321 | is_a_field_of_this are undefined. */ | |
9a146a11 | 1322 | if (is_a_field_of_this != NULL) |
1993b719 | 1323 | memset (is_a_field_of_this, 0, sizeof (*is_a_field_of_this)); |
9a146a11 | 1324 | |
e4051eeb DC |
1325 | /* Search specified block and its superiors. Don't search |
1326 | STATIC_BLOCK or GLOBAL_BLOCK. */ | |
c906108c | 1327 | |
13387711 | 1328 | sym = lookup_symbol_aux_local (name, block, domain, language); |
8155455b DC |
1329 | if (sym != NULL) |
1330 | return sym; | |
c906108c | 1331 | |
53c5240f | 1332 | /* If requested to do so by the caller and if appropriate for LANGUAGE, |
13387711 | 1333 | check to see if NAME is a field of `this'. */ |
53c5240f PA |
1334 | |
1335 | langdef = language_def (language); | |
5f9a71c3 | 1336 | |
6592e36f TT |
1337 | /* Don't do this check if we are searching for a struct. It will |
1338 | not be found by check_field, but will be found by other | |
1339 | means. */ | |
1340 | if (is_a_field_of_this != NULL && domain != STRUCT_DOMAIN) | |
c906108c | 1341 | { |
66a17cb6 | 1342 | struct symbol *sym = lookup_language_this (langdef, block); |
2b2d9e11 | 1343 | |
2b2d9e11 | 1344 | if (sym) |
c906108c | 1345 | { |
2b2d9e11 | 1346 | struct type *t = sym->type; |
9af17804 | 1347 | |
2b2d9e11 VP |
1348 | /* I'm not really sure that type of this can ever |
1349 | be typedefed; just be safe. */ | |
1350 | CHECK_TYPEDEF (t); | |
1351 | if (TYPE_CODE (t) == TYPE_CODE_PTR | |
1352 | || TYPE_CODE (t) == TYPE_CODE_REF) | |
1353 | t = TYPE_TARGET_TYPE (t); | |
9af17804 | 1354 | |
2b2d9e11 VP |
1355 | if (TYPE_CODE (t) != TYPE_CODE_STRUCT |
1356 | && TYPE_CODE (t) != TYPE_CODE_UNION) | |
9af17804 | 1357 | error (_("Internal error: `%s' is not an aggregate"), |
2b2d9e11 | 1358 | langdef->la_name_of_this); |
9af17804 | 1359 | |
1993b719 TT |
1360 | if (check_field (t, name, is_a_field_of_this)) |
1361 | return NULL; | |
c906108c SS |
1362 | } |
1363 | } | |
1364 | ||
53c5240f | 1365 | /* Now do whatever is appropriate for LANGUAGE to look |
774b6a14 | 1366 | up static and global variables. */ |
c906108c | 1367 | |
774b6a14 TT |
1368 | sym = langdef->la_lookup_symbol_nonlocal (name, block, domain); |
1369 | if (sym != NULL) | |
1370 | return sym; | |
c906108c | 1371 | |
774b6a14 TT |
1372 | /* Now search all static file-level symbols. Not strictly correct, |
1373 | but more useful than an error. */ | |
41f62f39 JK |
1374 | |
1375 | return lookup_static_symbol_aux (name, domain); | |
1376 | } | |
1377 | ||
1378 | /* Search all static file-level symbols for NAME from DOMAIN. Do the symtabs | |
1379 | first, then check the psymtabs. If a psymtab indicates the existence of the | |
1380 | desired name as a file-level static, then do psymtab-to-symtab conversion on | |
c378eb4e | 1381 | the fly and return the found symbol. */ |
41f62f39 JK |
1382 | |
1383 | struct symbol * | |
1384 | lookup_static_symbol_aux (const char *name, const domain_enum domain) | |
1385 | { | |
1386 | struct objfile *objfile; | |
1387 | struct symbol *sym; | |
c906108c | 1388 | |
67ff19f7 | 1389 | sym = lookup_symbol_aux_symtabs (STATIC_BLOCK, name, domain); |
8155455b DC |
1390 | if (sym != NULL) |
1391 | return sym; | |
9af17804 | 1392 | |
ccefe4c4 TT |
1393 | ALL_OBJFILES (objfile) |
1394 | { | |
1395 | sym = lookup_symbol_aux_quick (objfile, STATIC_BLOCK, name, domain); | |
1396 | if (sym != NULL) | |
1397 | return sym; | |
1398 | } | |
c906108c | 1399 | |
8155455b | 1400 | return NULL; |
c906108c | 1401 | } |
8155455b | 1402 | |
e4051eeb | 1403 | /* Check to see if the symbol is defined in BLOCK or its superiors. |
89a9d1b1 | 1404 | Don't search STATIC_BLOCK or GLOBAL_BLOCK. */ |
8155455b DC |
1405 | |
1406 | static struct symbol * | |
94af9270 | 1407 | lookup_symbol_aux_local (const char *name, const struct block *block, |
13387711 SW |
1408 | const domain_enum domain, |
1409 | enum language language) | |
8155455b DC |
1410 | { |
1411 | struct symbol *sym; | |
89a9d1b1 | 1412 | const struct block *static_block = block_static_block (block); |
13387711 SW |
1413 | const char *scope = block_scope (block); |
1414 | ||
e4051eeb DC |
1415 | /* Check if either no block is specified or it's a global block. */ |
1416 | ||
89a9d1b1 DC |
1417 | if (static_block == NULL) |
1418 | return NULL; | |
e4051eeb | 1419 | |
89a9d1b1 | 1420 | while (block != static_block) |
f61e8913 | 1421 | { |
94af9270 | 1422 | sym = lookup_symbol_aux_block (name, block, domain); |
f61e8913 DC |
1423 | if (sym != NULL) |
1424 | return sym; | |
edb3359d | 1425 | |
f55ee35c | 1426 | if (language == language_cplus || language == language_fortran) |
13387711 | 1427 | { |
34eaf542 TT |
1428 | sym = cp_lookup_symbol_imports_or_template (scope, name, block, |
1429 | domain); | |
13387711 SW |
1430 | if (sym != NULL) |
1431 | return sym; | |
1432 | } | |
1433 | ||
edb3359d DJ |
1434 | if (BLOCK_FUNCTION (block) != NULL && block_inlined_p (block)) |
1435 | break; | |
f61e8913 DC |
1436 | block = BLOCK_SUPERBLOCK (block); |
1437 | } | |
1438 | ||
edb3359d | 1439 | /* We've reached the edge of the function without finding a result. */ |
e4051eeb | 1440 | |
f61e8913 DC |
1441 | return NULL; |
1442 | } | |
1443 | ||
3a40aaa0 UW |
1444 | /* Look up OBJFILE to BLOCK. */ |
1445 | ||
c0201579 | 1446 | struct objfile * |
3a40aaa0 UW |
1447 | lookup_objfile_from_block (const struct block *block) |
1448 | { | |
1449 | struct objfile *obj; | |
1450 | struct symtab *s; | |
1451 | ||
1452 | if (block == NULL) | |
1453 | return NULL; | |
1454 | ||
1455 | block = block_global_block (block); | |
1456 | /* Go through SYMTABS. */ | |
1457 | ALL_SYMTABS (obj, s) | |
1458 | if (block == BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK)) | |
61f0d762 JK |
1459 | { |
1460 | if (obj->separate_debug_objfile_backlink) | |
1461 | obj = obj->separate_debug_objfile_backlink; | |
1462 | ||
1463 | return obj; | |
1464 | } | |
3a40aaa0 UW |
1465 | |
1466 | return NULL; | |
1467 | } | |
1468 | ||
6c9353d3 PA |
1469 | /* Look up a symbol in a block; if found, fixup the symbol, and set |
1470 | block_found appropriately. */ | |
f61e8913 | 1471 | |
5f9a71c3 | 1472 | struct symbol * |
94af9270 | 1473 | lookup_symbol_aux_block (const char *name, const struct block *block, |
21b556f4 | 1474 | const domain_enum domain) |
f61e8913 DC |
1475 | { |
1476 | struct symbol *sym; | |
f61e8913 | 1477 | |
94af9270 | 1478 | sym = lookup_block_symbol (block, name, domain); |
f61e8913 | 1479 | if (sym) |
8155455b | 1480 | { |
f61e8913 | 1481 | block_found = block; |
21b556f4 | 1482 | return fixup_symbol_section (sym, NULL); |
8155455b DC |
1483 | } |
1484 | ||
1485 | return NULL; | |
1486 | } | |
1487 | ||
3a40aaa0 UW |
1488 | /* Check all global symbols in OBJFILE in symtabs and |
1489 | psymtabs. */ | |
1490 | ||
1491 | struct symbol * | |
15d123c9 | 1492 | lookup_global_symbol_from_objfile (const struct objfile *main_objfile, |
3a40aaa0 | 1493 | const char *name, |
21b556f4 | 1494 | const domain_enum domain) |
3a40aaa0 | 1495 | { |
15d123c9 | 1496 | const struct objfile *objfile; |
3a40aaa0 UW |
1497 | struct symbol *sym; |
1498 | struct blockvector *bv; | |
1499 | const struct block *block; | |
1500 | struct symtab *s; | |
3a40aaa0 | 1501 | |
15d123c9 TG |
1502 | for (objfile = main_objfile; |
1503 | objfile; | |
1504 | objfile = objfile_separate_debug_iterate (main_objfile, objfile)) | |
1505 | { | |
1506 | /* Go through symtabs. */ | |
78e5175a DE |
1507 | ALL_OBJFILE_PRIMARY_SYMTABS (objfile, s) |
1508 | { | |
1509 | bv = BLOCKVECTOR (s); | |
1510 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
1511 | sym = lookup_block_symbol (block, name, domain); | |
1512 | if (sym) | |
1513 | { | |
1514 | block_found = block; | |
1515 | return fixup_symbol_section (sym, (struct objfile *)objfile); | |
1516 | } | |
1517 | } | |
15d123c9 | 1518 | |
ccefe4c4 TT |
1519 | sym = lookup_symbol_aux_quick ((struct objfile *) objfile, GLOBAL_BLOCK, |
1520 | name, domain); | |
1521 | if (sym) | |
1522 | return sym; | |
15d123c9 | 1523 | } |
56e3f43c | 1524 | |
3a40aaa0 UW |
1525 | return NULL; |
1526 | } | |
1527 | ||
19630284 JB |
1528 | /* Check to see if the symbol is defined in one of the OBJFILE's |
1529 | symtabs. BLOCK_INDEX should be either GLOBAL_BLOCK or STATIC_BLOCK, | |
8155455b DC |
1530 | depending on whether or not we want to search global symbols or |
1531 | static symbols. */ | |
1532 | ||
19630284 JB |
1533 | static struct symbol * |
1534 | lookup_symbol_aux_objfile (struct objfile *objfile, int block_index, | |
1535 | const char *name, const domain_enum domain) | |
1536 | { | |
1537 | struct symbol *sym = NULL; | |
1538 | struct blockvector *bv; | |
1539 | const struct block *block; | |
1540 | struct symtab *s; | |
1541 | ||
a743abeb DE |
1542 | ALL_OBJFILE_PRIMARY_SYMTABS (objfile, s) |
1543 | { | |
1544 | bv = BLOCKVECTOR (s); | |
1545 | block = BLOCKVECTOR_BLOCK (bv, block_index); | |
1546 | sym = lookup_block_symbol (block, name, domain); | |
1547 | if (sym) | |
1548 | { | |
1549 | block_found = block; | |
1550 | return fixup_symbol_section (sym, objfile); | |
1551 | } | |
1552 | } | |
19630284 JB |
1553 | |
1554 | return NULL; | |
1555 | } | |
1556 | ||
1557 | /* Same as lookup_symbol_aux_objfile, except that it searches all | |
1558 | objfiles. Return the first match found. */ | |
1559 | ||
8155455b | 1560 | static struct symbol * |
67ff19f7 JB |
1561 | lookup_symbol_aux_symtabs (int block_index, const char *name, |
1562 | const domain_enum domain) | |
8155455b | 1563 | { |
67ff19f7 JB |
1564 | struct symbol *sym; |
1565 | struct objfile *objfile; | |
8155455b | 1566 | |
67ff19f7 JB |
1567 | ALL_OBJFILES (objfile) |
1568 | { | |
19630284 JB |
1569 | sym = lookup_symbol_aux_objfile (objfile, block_index, name, domain); |
1570 | if (sym) | |
1571 | return sym; | |
8155455b DC |
1572 | } |
1573 | ||
1574 | return NULL; | |
1575 | } | |
1576 | ||
422d65e7 DE |
1577 | /* Wrapper around lookup_symbol_aux_objfile for search_symbols. |
1578 | Look up LINKAGE_NAME in DOMAIN in the global and static blocks of OBJFILE | |
1579 | and all related objfiles. */ | |
1580 | ||
1581 | static struct symbol * | |
1582 | lookup_symbol_in_objfile_from_linkage_name (struct objfile *objfile, | |
1583 | const char *linkage_name, | |
1584 | domain_enum domain) | |
1585 | { | |
1586 | enum language lang = current_language->la_language; | |
1587 | const char *modified_name; | |
1588 | struct cleanup *cleanup = demangle_for_lookup (linkage_name, lang, | |
1589 | &modified_name); | |
1590 | struct objfile *main_objfile, *cur_objfile; | |
1591 | ||
1592 | if (objfile->separate_debug_objfile_backlink) | |
1593 | main_objfile = objfile->separate_debug_objfile_backlink; | |
1594 | else | |
1595 | main_objfile = objfile; | |
1596 | ||
1597 | for (cur_objfile = main_objfile; | |
1598 | cur_objfile; | |
1599 | cur_objfile = objfile_separate_debug_iterate (main_objfile, cur_objfile)) | |
1600 | { | |
1601 | struct symbol *sym; | |
1602 | ||
1603 | sym = lookup_symbol_aux_objfile (cur_objfile, GLOBAL_BLOCK, | |
1604 | modified_name, domain); | |
1605 | if (sym == NULL) | |
1606 | sym = lookup_symbol_aux_objfile (cur_objfile, STATIC_BLOCK, | |
1607 | modified_name, domain); | |
1608 | if (sym != NULL) | |
1609 | { | |
1610 | do_cleanups (cleanup); | |
1611 | return sym; | |
1612 | } | |
1613 | } | |
1614 | ||
1615 | do_cleanups (cleanup); | |
1616 | return NULL; | |
1617 | } | |
1618 | ||
ccefe4c4 TT |
1619 | /* A helper function for lookup_symbol_aux that interfaces with the |
1620 | "quick" symbol table functions. */ | |
8155455b DC |
1621 | |
1622 | static struct symbol * | |
ccefe4c4 TT |
1623 | lookup_symbol_aux_quick (struct objfile *objfile, int kind, |
1624 | const char *name, const domain_enum domain) | |
8155455b | 1625 | { |
ccefe4c4 | 1626 | struct symtab *symtab; |
8155455b DC |
1627 | struct blockvector *bv; |
1628 | const struct block *block; | |
ccefe4c4 | 1629 | struct symbol *sym; |
8155455b | 1630 | |
ccefe4c4 TT |
1631 | if (!objfile->sf) |
1632 | return NULL; | |
1633 | symtab = objfile->sf->qf->lookup_symbol (objfile, kind, name, domain); | |
1634 | if (!symtab) | |
1635 | return NULL; | |
8155455b | 1636 | |
ccefe4c4 TT |
1637 | bv = BLOCKVECTOR (symtab); |
1638 | block = BLOCKVECTOR_BLOCK (bv, kind); | |
1639 | sym = lookup_block_symbol (block, name, domain); | |
1640 | if (!sym) | |
1641 | { | |
1642 | /* This shouldn't be necessary, but as a last resort try | |
1643 | looking in the statics even though the psymtab claimed | |
c378eb4e | 1644 | the symbol was global, or vice-versa. It's possible |
ccefe4c4 TT |
1645 | that the psymtab gets it wrong in some cases. */ |
1646 | ||
1647 | /* FIXME: carlton/2002-09-30: Should we really do that? | |
1648 | If that happens, isn't it likely to be a GDB error, in | |
1649 | which case we should fix the GDB error rather than | |
1650 | silently dealing with it here? So I'd vote for | |
1651 | removing the check for the symbol in the other | |
1652 | block. */ | |
1653 | block = BLOCKVECTOR_BLOCK (bv, | |
1654 | kind == GLOBAL_BLOCK ? | |
1655 | STATIC_BLOCK : GLOBAL_BLOCK); | |
1656 | sym = lookup_block_symbol (block, name, domain); | |
1657 | if (!sym) | |
3e43a32a MS |
1658 | error (_("\ |
1659 | Internal: %s symbol `%s' found in %s psymtab but not in symtab.\n\ | |
1660 | %s may be an inlined function, or may be a template function\n\ | |
1661 | (if a template, try specifying an instantiation: %s<type>)."), | |
ccefe4c4 | 1662 | kind == GLOBAL_BLOCK ? "global" : "static", |
05cba821 | 1663 | name, symtab_to_filename_for_display (symtab), name, name); |
ccefe4c4 TT |
1664 | } |
1665 | return fixup_symbol_section (sym, objfile); | |
8155455b DC |
1666 | } |
1667 | ||
5f9a71c3 DC |
1668 | /* A default version of lookup_symbol_nonlocal for use by languages |
1669 | that can't think of anything better to do. This implements the C | |
1670 | lookup rules. */ | |
1671 | ||
1672 | struct symbol * | |
1673 | basic_lookup_symbol_nonlocal (const char *name, | |
5f9a71c3 | 1674 | const struct block *block, |
21b556f4 | 1675 | const domain_enum domain) |
5f9a71c3 DC |
1676 | { |
1677 | struct symbol *sym; | |
1678 | ||
1679 | /* NOTE: carlton/2003-05-19: The comments below were written when | |
1680 | this (or what turned into this) was part of lookup_symbol_aux; | |
1681 | I'm much less worried about these questions now, since these | |
1682 | decisions have turned out well, but I leave these comments here | |
1683 | for posterity. */ | |
1684 | ||
1685 | /* NOTE: carlton/2002-12-05: There is a question as to whether or | |
1686 | not it would be appropriate to search the current global block | |
1687 | here as well. (That's what this code used to do before the | |
1688 | is_a_field_of_this check was moved up.) On the one hand, it's | |
1689 | redundant with the lookup_symbol_aux_symtabs search that happens | |
1690 | next. On the other hand, if decode_line_1 is passed an argument | |
1691 | like filename:var, then the user presumably wants 'var' to be | |
1692 | searched for in filename. On the third hand, there shouldn't be | |
1693 | multiple global variables all of which are named 'var', and it's | |
1694 | not like decode_line_1 has ever restricted its search to only | |
1695 | global variables in a single filename. All in all, only | |
1696 | searching the static block here seems best: it's correct and it's | |
1697 | cleanest. */ | |
1698 | ||
1699 | /* NOTE: carlton/2002-12-05: There's also a possible performance | |
1700 | issue here: if you usually search for global symbols in the | |
1701 | current file, then it would be slightly better to search the | |
1702 | current global block before searching all the symtabs. But there | |
1703 | are other factors that have a much greater effect on performance | |
1704 | than that one, so I don't think we should worry about that for | |
1705 | now. */ | |
1706 | ||
94af9270 | 1707 | sym = lookup_symbol_static (name, block, domain); |
5f9a71c3 DC |
1708 | if (sym != NULL) |
1709 | return sym; | |
1710 | ||
94af9270 | 1711 | return lookup_symbol_global (name, block, domain); |
5f9a71c3 DC |
1712 | } |
1713 | ||
1714 | /* Lookup a symbol in the static block associated to BLOCK, if there | |
1715 | is one; do nothing if BLOCK is NULL or a global block. */ | |
1716 | ||
1717 | struct symbol * | |
1718 | lookup_symbol_static (const char *name, | |
5f9a71c3 | 1719 | const struct block *block, |
21b556f4 | 1720 | const domain_enum domain) |
5f9a71c3 DC |
1721 | { |
1722 | const struct block *static_block = block_static_block (block); | |
1723 | ||
1724 | if (static_block != NULL) | |
94af9270 | 1725 | return lookup_symbol_aux_block (name, static_block, domain); |
5f9a71c3 DC |
1726 | else |
1727 | return NULL; | |
1728 | } | |
1729 | ||
19630284 JB |
1730 | /* Private data to be used with lookup_symbol_global_iterator_cb. */ |
1731 | ||
1732 | struct global_sym_lookup_data | |
1733 | { | |
1734 | /* The name of the symbol we are searching for. */ | |
1735 | const char *name; | |
1736 | ||
1737 | /* The domain to use for our search. */ | |
1738 | domain_enum domain; | |
1739 | ||
1740 | /* The field where the callback should store the symbol if found. | |
1741 | It should be initialized to NULL before the search is started. */ | |
1742 | struct symbol *result; | |
1743 | }; | |
1744 | ||
1745 | /* A callback function for gdbarch_iterate_over_objfiles_in_search_order. | |
1746 | It searches by name for a symbol in the GLOBAL_BLOCK of the given | |
1747 | OBJFILE. The arguments for the search are passed via CB_DATA, | |
1748 | which in reality is a pointer to struct global_sym_lookup_data. */ | |
1749 | ||
1750 | static int | |
1751 | lookup_symbol_global_iterator_cb (struct objfile *objfile, | |
1752 | void *cb_data) | |
1753 | { | |
1754 | struct global_sym_lookup_data *data = | |
1755 | (struct global_sym_lookup_data *) cb_data; | |
1756 | ||
1757 | gdb_assert (data->result == NULL); | |
1758 | ||
1759 | data->result = lookup_symbol_aux_objfile (objfile, GLOBAL_BLOCK, | |
1760 | data->name, data->domain); | |
1761 | if (data->result == NULL) | |
1762 | data->result = lookup_symbol_aux_quick (objfile, GLOBAL_BLOCK, | |
1763 | data->name, data->domain); | |
1764 | ||
1765 | /* If we found a match, tell the iterator to stop. Otherwise, | |
1766 | keep going. */ | |
1767 | return (data->result != NULL); | |
1768 | } | |
1769 | ||
5f9a71c3 DC |
1770 | /* Lookup a symbol in all files' global blocks (searching psymtabs if |
1771 | necessary). */ | |
1772 | ||
1773 | struct symbol * | |
1774 | lookup_symbol_global (const char *name, | |
3a40aaa0 | 1775 | const struct block *block, |
21b556f4 | 1776 | const domain_enum domain) |
5f9a71c3 | 1777 | { |
3a40aaa0 UW |
1778 | struct symbol *sym = NULL; |
1779 | struct objfile *objfile = NULL; | |
19630284 | 1780 | struct global_sym_lookup_data lookup_data; |
3a40aaa0 UW |
1781 | |
1782 | /* Call library-specific lookup procedure. */ | |
67ff19f7 JB |
1783 | objfile = lookup_objfile_from_block (block); |
1784 | if (objfile != NULL) | |
1785 | sym = solib_global_lookup (objfile, name, domain); | |
3a40aaa0 UW |
1786 | if (sym != NULL) |
1787 | return sym; | |
5f9a71c3 | 1788 | |
19630284 JB |
1789 | memset (&lookup_data, 0, sizeof (lookup_data)); |
1790 | lookup_data.name = name; | |
1791 | lookup_data.domain = domain; | |
1792 | gdbarch_iterate_over_objfiles_in_search_order | |
f5656ead | 1793 | (objfile != NULL ? get_objfile_arch (objfile) : target_gdbarch (), |
19630284 | 1794 | lookup_symbol_global_iterator_cb, &lookup_data, objfile); |
5f9a71c3 | 1795 | |
19630284 | 1796 | return lookup_data.result; |
5f9a71c3 DC |
1797 | } |
1798 | ||
5eeb2539 | 1799 | int |
9af17804 | 1800 | symbol_matches_domain (enum language symbol_language, |
5eeb2539 AR |
1801 | domain_enum symbol_domain, |
1802 | domain_enum domain) | |
1803 | { | |
9af17804 | 1804 | /* For C++ "struct foo { ... }" also defines a typedef for "foo". |
5eeb2539 AR |
1805 | A Java class declaration also defines a typedef for the class. |
1806 | Similarly, any Ada type declaration implicitly defines a typedef. */ | |
1807 | if (symbol_language == language_cplus | |
6aecb9c2 | 1808 | || symbol_language == language_d |
5eeb2539 AR |
1809 | || symbol_language == language_java |
1810 | || symbol_language == language_ada) | |
1811 | { | |
1812 | if ((domain == VAR_DOMAIN || domain == STRUCT_DOMAIN) | |
1813 | && symbol_domain == STRUCT_DOMAIN) | |
1814 | return 1; | |
1815 | } | |
1816 | /* For all other languages, strict match is required. */ | |
1817 | return (symbol_domain == domain); | |
1818 | } | |
1819 | ||
ccefe4c4 TT |
1820 | /* Look up a type named NAME in the struct_domain. The type returned |
1821 | must not be opaque -- i.e., must have at least one field | |
1822 | defined. */ | |
c906108c | 1823 | |
ccefe4c4 TT |
1824 | struct type * |
1825 | lookup_transparent_type (const char *name) | |
c906108c | 1826 | { |
ccefe4c4 TT |
1827 | return current_language->la_lookup_transparent_type (name); |
1828 | } | |
9af17804 | 1829 | |
ccefe4c4 TT |
1830 | /* A helper for basic_lookup_transparent_type that interfaces with the |
1831 | "quick" symbol table functions. */ | |
357e46e7 | 1832 | |
ccefe4c4 TT |
1833 | static struct type * |
1834 | basic_lookup_transparent_type_quick (struct objfile *objfile, int kind, | |
1835 | const char *name) | |
1836 | { | |
1837 | struct symtab *symtab; | |
1838 | struct blockvector *bv; | |
1839 | struct block *block; | |
1840 | struct symbol *sym; | |
c906108c | 1841 | |
ccefe4c4 TT |
1842 | if (!objfile->sf) |
1843 | return NULL; | |
1844 | symtab = objfile->sf->qf->lookup_symbol (objfile, kind, name, STRUCT_DOMAIN); | |
1845 | if (!symtab) | |
1846 | return NULL; | |
c906108c | 1847 | |
ccefe4c4 TT |
1848 | bv = BLOCKVECTOR (symtab); |
1849 | block = BLOCKVECTOR_BLOCK (bv, kind); | |
1850 | sym = lookup_block_symbol (block, name, STRUCT_DOMAIN); | |
1851 | if (!sym) | |
9af17804 | 1852 | { |
ccefe4c4 TT |
1853 | int other_kind = kind == GLOBAL_BLOCK ? STATIC_BLOCK : GLOBAL_BLOCK; |
1854 | ||
1855 | /* This shouldn't be necessary, but as a last resort | |
1856 | * try looking in the 'other kind' even though the psymtab | |
c378eb4e | 1857 | * claimed the symbol was one thing. It's possible that |
ccefe4c4 TT |
1858 | * the psymtab gets it wrong in some cases. |
1859 | */ | |
1860 | block = BLOCKVECTOR_BLOCK (bv, other_kind); | |
1861 | sym = lookup_block_symbol (block, name, STRUCT_DOMAIN); | |
1862 | if (!sym) | |
c378eb4e | 1863 | /* FIXME; error is wrong in one case. */ |
3e43a32a MS |
1864 | error (_("\ |
1865 | Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\ | |
ccefe4c4 TT |
1866 | %s may be an inlined function, or may be a template function\n\ |
1867 | (if a template, try specifying an instantiation: %s<type>)."), | |
05cba821 | 1868 | name, symtab_to_filename_for_display (symtab), name, name); |
c906108c | 1869 | } |
ccefe4c4 TT |
1870 | if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))) |
1871 | return SYMBOL_TYPE (sym); | |
c906108c | 1872 | |
ccefe4c4 | 1873 | return NULL; |
b368761e | 1874 | } |
c906108c | 1875 | |
b368761e DC |
1876 | /* The standard implementation of lookup_transparent_type. This code |
1877 | was modeled on lookup_symbol -- the parts not relevant to looking | |
1878 | up types were just left out. In particular it's assumed here that | |
1879 | types are available in struct_domain and only at file-static or | |
1880 | global blocks. */ | |
c906108c SS |
1881 | |
1882 | struct type * | |
b368761e | 1883 | basic_lookup_transparent_type (const char *name) |
c906108c | 1884 | { |
52f0bd74 AC |
1885 | struct symbol *sym; |
1886 | struct symtab *s = NULL; | |
c906108c | 1887 | struct blockvector *bv; |
52f0bd74 AC |
1888 | struct objfile *objfile; |
1889 | struct block *block; | |
ccefe4c4 | 1890 | struct type *t; |
c906108c SS |
1891 | |
1892 | /* Now search all the global symbols. Do the symtab's first, then | |
c378eb4e | 1893 | check the psymtab's. If a psymtab indicates the existence |
c906108c SS |
1894 | of the desired name as a global, then do psymtab-to-symtab |
1895 | conversion on the fly and return the found symbol. */ | |
c5aa993b | 1896 | |
58b6ab13 | 1897 | ALL_OBJFILES (objfile) |
c5aa993b | 1898 | { |
d790cf0a DE |
1899 | ALL_OBJFILE_PRIMARY_SYMTABS (objfile, s) |
1900 | { | |
1901 | bv = BLOCKVECTOR (s); | |
1902 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
1903 | sym = lookup_block_symbol (block, name, STRUCT_DOMAIN); | |
1904 | if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))) | |
1905 | { | |
1906 | return SYMBOL_TYPE (sym); | |
1907 | } | |
1908 | } | |
c5aa993b | 1909 | } |
c906108c | 1910 | |
ccefe4c4 | 1911 | ALL_OBJFILES (objfile) |
c5aa993b | 1912 | { |
ccefe4c4 TT |
1913 | t = basic_lookup_transparent_type_quick (objfile, GLOBAL_BLOCK, name); |
1914 | if (t) | |
1915 | return t; | |
c5aa993b | 1916 | } |
c906108c SS |
1917 | |
1918 | /* Now search the static file-level symbols. | |
1919 | Not strictly correct, but more useful than an error. | |
1920 | Do the symtab's first, then | |
c378eb4e | 1921 | check the psymtab's. If a psymtab indicates the existence |
c906108c | 1922 | of the desired name as a file-level static, then do psymtab-to-symtab |
c378eb4e | 1923 | conversion on the fly and return the found symbol. */ |
c906108c | 1924 | |
54ec275a | 1925 | ALL_OBJFILES (objfile) |
c5aa993b | 1926 | { |
78e5175a | 1927 | ALL_OBJFILE_PRIMARY_SYMTABS (objfile, s) |
c5aa993b | 1928 | { |
54ec275a KS |
1929 | bv = BLOCKVECTOR (s); |
1930 | block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
1931 | sym = lookup_block_symbol (block, name, STRUCT_DOMAIN); | |
1932 | if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))) | |
1933 | { | |
1934 | return SYMBOL_TYPE (sym); | |
1935 | } | |
c5aa993b JM |
1936 | } |
1937 | } | |
c906108c | 1938 | |
ccefe4c4 | 1939 | ALL_OBJFILES (objfile) |
c5aa993b | 1940 | { |
ccefe4c4 TT |
1941 | t = basic_lookup_transparent_type_quick (objfile, STATIC_BLOCK, name); |
1942 | if (t) | |
1943 | return t; | |
c5aa993b | 1944 | } |
ccefe4c4 | 1945 | |
c906108c SS |
1946 | return (struct type *) 0; |
1947 | } | |
1948 | ||
c378eb4e | 1949 | /* Find the name of the file containing main(). */ |
c906108c | 1950 | /* FIXME: What about languages without main() or specially linked |
c378eb4e | 1951 | executables that have no main() ? */ |
c906108c | 1952 | |
dd786858 | 1953 | const char * |
ccefe4c4 | 1954 | find_main_filename (void) |
c906108c | 1955 | { |
52f0bd74 | 1956 | struct objfile *objfile; |
dd786858 | 1957 | char *name = main_name (); |
c906108c | 1958 | |
ccefe4c4 | 1959 | ALL_OBJFILES (objfile) |
c5aa993b | 1960 | { |
dd786858 TT |
1961 | const char *result; |
1962 | ||
ccefe4c4 TT |
1963 | if (!objfile->sf) |
1964 | continue; | |
1965 | result = objfile->sf->qf->find_symbol_file (objfile, name); | |
1966 | if (result) | |
1967 | return result; | |
c5aa993b | 1968 | } |
c906108c SS |
1969 | return (NULL); |
1970 | } | |
1971 | ||
176620f1 | 1972 | /* Search BLOCK for symbol NAME in DOMAIN. |
c906108c SS |
1973 | |
1974 | Note that if NAME is the demangled form of a C++ symbol, we will fail | |
1975 | to find a match during the binary search of the non-encoded names, but | |
1976 | for now we don't worry about the slight inefficiency of looking for | |
1977 | a match we'll never find, since it will go pretty quick. Once the | |
1978 | binary search terminates, we drop through and do a straight linear | |
1bae87b9 | 1979 | search on the symbols. Each symbol which is marked as being a ObjC/C++ |
9af17804 | 1980 | symbol (language_cplus or language_objc set) has both the encoded and |
c378eb4e | 1981 | non-encoded names tested for a match. */ |
c906108c SS |
1982 | |
1983 | struct symbol * | |
aa1ee363 | 1984 | lookup_block_symbol (const struct block *block, const char *name, |
176620f1 | 1985 | const domain_enum domain) |
c906108c | 1986 | { |
8157b174 | 1987 | struct block_iterator iter; |
de4f826b | 1988 | struct symbol *sym; |
c906108c | 1989 | |
de4f826b | 1990 | if (!BLOCK_FUNCTION (block)) |
261397f8 | 1991 | { |
8157b174 | 1992 | for (sym = block_iter_name_first (block, name, &iter); |
de4f826b | 1993 | sym != NULL; |
8157b174 | 1994 | sym = block_iter_name_next (name, &iter)) |
261397f8 | 1995 | { |
5eeb2539 | 1996 | if (symbol_matches_domain (SYMBOL_LANGUAGE (sym), |
94af9270 | 1997 | SYMBOL_DOMAIN (sym), domain)) |
261397f8 DJ |
1998 | return sym; |
1999 | } | |
2000 | return NULL; | |
2001 | } | |
526e70c0 | 2002 | else |
c906108c | 2003 | { |
526e70c0 DC |
2004 | /* Note that parameter symbols do not always show up last in the |
2005 | list; this loop makes sure to take anything else other than | |
2006 | parameter symbols first; it only uses parameter symbols as a | |
2007 | last resort. Note that this only takes up extra computation | |
2008 | time on a match. */ | |
de4f826b DC |
2009 | |
2010 | struct symbol *sym_found = NULL; | |
2011 | ||
8157b174 | 2012 | for (sym = block_iter_name_first (block, name, &iter); |
de4f826b | 2013 | sym != NULL; |
8157b174 | 2014 | sym = block_iter_name_next (name, &iter)) |
c906108c | 2015 | { |
5eeb2539 | 2016 | if (symbol_matches_domain (SYMBOL_LANGUAGE (sym), |
94af9270 | 2017 | SYMBOL_DOMAIN (sym), domain)) |
c906108c | 2018 | { |
c906108c | 2019 | sym_found = sym; |
2a2d4dc3 | 2020 | if (!SYMBOL_IS_ARGUMENT (sym)) |
c906108c SS |
2021 | { |
2022 | break; | |
2023 | } | |
2024 | } | |
c906108c | 2025 | } |
c378eb4e | 2026 | return (sym_found); /* Will be NULL if not found. */ |
c906108c | 2027 | } |
c906108c SS |
2028 | } |
2029 | ||
4eeaa230 | 2030 | /* Iterate over the symbols named NAME, matching DOMAIN, in BLOCK. |
f8eba3c6 TT |
2031 | |
2032 | For each symbol that matches, CALLBACK is called. The symbol and | |
2033 | DATA are passed to the callback. | |
2034 | ||
2035 | If CALLBACK returns zero, the iteration ends. Otherwise, the | |
4eeaa230 | 2036 | search continues. */ |
f8eba3c6 TT |
2037 | |
2038 | void | |
2039 | iterate_over_symbols (const struct block *block, const char *name, | |
2040 | const domain_enum domain, | |
8e704927 | 2041 | symbol_found_callback_ftype *callback, |
f8eba3c6 TT |
2042 | void *data) |
2043 | { | |
4eeaa230 DE |
2044 | struct block_iterator iter; |
2045 | struct symbol *sym; | |
f8eba3c6 | 2046 | |
4eeaa230 DE |
2047 | for (sym = block_iter_name_first (block, name, &iter); |
2048 | sym != NULL; | |
2049 | sym = block_iter_name_next (name, &iter)) | |
2050 | { | |
2051 | if (symbol_matches_domain (SYMBOL_LANGUAGE (sym), | |
2052 | SYMBOL_DOMAIN (sym), domain)) | |
f8eba3c6 | 2053 | { |
4eeaa230 DE |
2054 | if (!callback (sym, data)) |
2055 | return; | |
f8eba3c6 | 2056 | } |
f8eba3c6 TT |
2057 | } |
2058 | } | |
2059 | ||
c906108c | 2060 | /* Find the symtab associated with PC and SECTION. Look through the |
c378eb4e | 2061 | psymtabs and read in another symtab if necessary. */ |
c906108c SS |
2062 | |
2063 | struct symtab * | |
714835d5 | 2064 | find_pc_sect_symtab (CORE_ADDR pc, struct obj_section *section) |
c906108c | 2065 | { |
52f0bd74 | 2066 | struct block *b; |
c906108c | 2067 | struct blockvector *bv; |
52f0bd74 AC |
2068 | struct symtab *s = NULL; |
2069 | struct symtab *best_s = NULL; | |
52f0bd74 | 2070 | struct objfile *objfile; |
c906108c | 2071 | CORE_ADDR distance = 0; |
8a48e967 DJ |
2072 | struct minimal_symbol *msymbol; |
2073 | ||
2074 | /* If we know that this is not a text address, return failure. This is | |
2075 | necessary because we loop based on the block's high and low code | |
2076 | addresses, which do not include the data ranges, and because | |
2077 | we call find_pc_sect_psymtab which has a similar restriction based | |
2078 | on the partial_symtab's texthigh and textlow. */ | |
2079 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); | |
2080 | if (msymbol | |
712f90be TT |
2081 | && (MSYMBOL_TYPE (msymbol) == mst_data |
2082 | || MSYMBOL_TYPE (msymbol) == mst_bss | |
2083 | || MSYMBOL_TYPE (msymbol) == mst_abs | |
2084 | || MSYMBOL_TYPE (msymbol) == mst_file_data | |
2085 | || MSYMBOL_TYPE (msymbol) == mst_file_bss)) | |
8a48e967 | 2086 | return NULL; |
c906108c SS |
2087 | |
2088 | /* Search all symtabs for the one whose file contains our address, and which | |
2089 | is the smallest of all the ones containing the address. This is designed | |
2090 | to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000 | |
2091 | and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from | |
2092 | 0x1000-0x4000, but for address 0x2345 we want to return symtab b. | |
2093 | ||
2094 | This happens for native ecoff format, where code from included files | |
c378eb4e | 2095 | gets its own symtab. The symtab for the included file should have |
c906108c SS |
2096 | been read in already via the dependency mechanism. |
2097 | It might be swifter to create several symtabs with the same name | |
2098 | like xcoff does (I'm not sure). | |
2099 | ||
2100 | It also happens for objfiles that have their functions reordered. | |
2101 | For these, the symtab we are looking for is not necessarily read in. */ | |
2102 | ||
11309657 | 2103 | ALL_PRIMARY_SYMTABS (objfile, s) |
c5aa993b JM |
2104 | { |
2105 | bv = BLOCKVECTOR (s); | |
2106 | b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
c906108c | 2107 | |
c5aa993b | 2108 | if (BLOCK_START (b) <= pc |
c5aa993b | 2109 | && BLOCK_END (b) > pc |
c5aa993b JM |
2110 | && (distance == 0 |
2111 | || BLOCK_END (b) - BLOCK_START (b) < distance)) | |
2112 | { | |
2113 | /* For an objfile that has its functions reordered, | |
2114 | find_pc_psymtab will find the proper partial symbol table | |
2115 | and we simply return its corresponding symtab. */ | |
2116 | /* In order to better support objfiles that contain both | |
2117 | stabs and coff debugging info, we continue on if a psymtab | |
c378eb4e | 2118 | can't be found. */ |
ccefe4c4 | 2119 | if ((objfile->flags & OBJF_REORDERED) && objfile->sf) |
c5aa993b | 2120 | { |
ccefe4c4 | 2121 | struct symtab *result; |
433759f7 | 2122 | |
ccefe4c4 TT |
2123 | result |
2124 | = objfile->sf->qf->find_pc_sect_symtab (objfile, | |
2125 | msymbol, | |
2126 | pc, section, | |
2127 | 0); | |
2128 | if (result) | |
2129 | return result; | |
c5aa993b JM |
2130 | } |
2131 | if (section != 0) | |
2132 | { | |
8157b174 | 2133 | struct block_iterator iter; |
261397f8 | 2134 | struct symbol *sym = NULL; |
c906108c | 2135 | |
de4f826b | 2136 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c5aa993b | 2137 | { |
261397f8 | 2138 | fixup_symbol_section (sym, objfile); |
714835d5 | 2139 | if (matching_obj_sections (SYMBOL_OBJ_SECTION (sym), section)) |
c5aa993b JM |
2140 | break; |
2141 | } | |
de4f826b | 2142 | if (sym == NULL) |
c378eb4e MS |
2143 | continue; /* No symbol in this symtab matches |
2144 | section. */ | |
c5aa993b JM |
2145 | } |
2146 | distance = BLOCK_END (b) - BLOCK_START (b); | |
2147 | best_s = s; | |
2148 | } | |
2149 | } | |
c906108c SS |
2150 | |
2151 | if (best_s != NULL) | |
c5aa993b | 2152 | return (best_s); |
c906108c | 2153 | |
072cabfe DE |
2154 | /* Not found in symtabs, search the "quick" symtabs (e.g. psymtabs). */ |
2155 | ||
ccefe4c4 TT |
2156 | ALL_OBJFILES (objfile) |
2157 | { | |
2158 | struct symtab *result; | |
433759f7 | 2159 | |
ccefe4c4 TT |
2160 | if (!objfile->sf) |
2161 | continue; | |
2162 | result = objfile->sf->qf->find_pc_sect_symtab (objfile, | |
2163 | msymbol, | |
2164 | pc, section, | |
2165 | 1); | |
2166 | if (result) | |
2167 | return result; | |
2168 | } | |
2169 | ||
2170 | return NULL; | |
c906108c SS |
2171 | } |
2172 | ||
c378eb4e MS |
2173 | /* Find the symtab associated with PC. Look through the psymtabs and read |
2174 | in another symtab if necessary. Backward compatibility, no section. */ | |
c906108c SS |
2175 | |
2176 | struct symtab * | |
fba45db2 | 2177 | find_pc_symtab (CORE_ADDR pc) |
c906108c SS |
2178 | { |
2179 | return find_pc_sect_symtab (pc, find_pc_mapped_section (pc)); | |
2180 | } | |
c906108c | 2181 | \f |
c5aa993b | 2182 | |
7e73cedf | 2183 | /* Find the source file and line number for a given PC value and SECTION. |
c906108c SS |
2184 | Return a structure containing a symtab pointer, a line number, |
2185 | and a pc range for the entire source line. | |
2186 | The value's .pc field is NOT the specified pc. | |
2187 | NOTCURRENT nonzero means, if specified pc is on a line boundary, | |
2188 | use the line that ends there. Otherwise, in that case, the line | |
2189 | that begins there is used. */ | |
2190 | ||
2191 | /* The big complication here is that a line may start in one file, and end just | |
2192 | before the start of another file. This usually occurs when you #include | |
2193 | code in the middle of a subroutine. To properly find the end of a line's PC | |
2194 | range, we must search all symtabs associated with this compilation unit, and | |
2195 | find the one whose first PC is closer than that of the next line in this | |
2196 | symtab. */ | |
2197 | ||
2198 | /* If it's worth the effort, we could be using a binary search. */ | |
2199 | ||
2200 | struct symtab_and_line | |
714835d5 | 2201 | find_pc_sect_line (CORE_ADDR pc, struct obj_section *section, int notcurrent) |
c906108c SS |
2202 | { |
2203 | struct symtab *s; | |
52f0bd74 AC |
2204 | struct linetable *l; |
2205 | int len; | |
2206 | int i; | |
2207 | struct linetable_entry *item; | |
c906108c SS |
2208 | struct symtab_and_line val; |
2209 | struct blockvector *bv; | |
2210 | struct minimal_symbol *msymbol; | |
2211 | struct minimal_symbol *mfunsym; | |
93b55aa1 | 2212 | struct objfile *objfile; |
c906108c SS |
2213 | |
2214 | /* Info on best line seen so far, and where it starts, and its file. */ | |
2215 | ||
2216 | struct linetable_entry *best = NULL; | |
2217 | CORE_ADDR best_end = 0; | |
2218 | struct symtab *best_symtab = 0; | |
2219 | ||
2220 | /* Store here the first line number | |
2221 | of a file which contains the line at the smallest pc after PC. | |
2222 | If we don't find a line whose range contains PC, | |
2223 | we will use a line one less than this, | |
2224 | with a range from the start of that file to the first line's pc. */ | |
2225 | struct linetable_entry *alt = NULL; | |
c906108c SS |
2226 | |
2227 | /* Info on best line seen in this file. */ | |
2228 | ||
2229 | struct linetable_entry *prev; | |
2230 | ||
2231 | /* If this pc is not from the current frame, | |
2232 | it is the address of the end of a call instruction. | |
2233 | Quite likely that is the start of the following statement. | |
2234 | But what we want is the statement containing the instruction. | |
2235 | Fudge the pc to make sure we get that. */ | |
2236 | ||
fe39c653 | 2237 | init_sal (&val); /* initialize to zeroes */ |
c906108c | 2238 | |
6c95b8df PA |
2239 | val.pspace = current_program_space; |
2240 | ||
b77b1eb7 JB |
2241 | /* It's tempting to assume that, if we can't find debugging info for |
2242 | any function enclosing PC, that we shouldn't search for line | |
2243 | number info, either. However, GAS can emit line number info for | |
2244 | assembly files --- very helpful when debugging hand-written | |
2245 | assembly code. In such a case, we'd have no debug info for the | |
2246 | function, but we would have line info. */ | |
648f4f79 | 2247 | |
c906108c SS |
2248 | if (notcurrent) |
2249 | pc -= 1; | |
2250 | ||
c5aa993b | 2251 | /* elz: added this because this function returned the wrong |
c906108c | 2252 | information if the pc belongs to a stub (import/export) |
c378eb4e | 2253 | to call a shlib function. This stub would be anywhere between |
9af17804 | 2254 | two functions in the target, and the line info was erroneously |
c378eb4e MS |
2255 | taken to be the one of the line before the pc. */ |
2256 | ||
c906108c | 2257 | /* RT: Further explanation: |
c5aa993b | 2258 | |
c906108c SS |
2259 | * We have stubs (trampolines) inserted between procedures. |
2260 | * | |
2261 | * Example: "shr1" exists in a shared library, and a "shr1" stub also | |
2262 | * exists in the main image. | |
2263 | * | |
2264 | * In the minimal symbol table, we have a bunch of symbols | |
c378eb4e | 2265 | * sorted by start address. The stubs are marked as "trampoline", |
c906108c SS |
2266 | * the others appear as text. E.g.: |
2267 | * | |
9af17804 | 2268 | * Minimal symbol table for main image |
c906108c SS |
2269 | * main: code for main (text symbol) |
2270 | * shr1: stub (trampoline symbol) | |
2271 | * foo: code for foo (text symbol) | |
2272 | * ... | |
2273 | * Minimal symbol table for "shr1" image: | |
2274 | * ... | |
2275 | * shr1: code for shr1 (text symbol) | |
2276 | * ... | |
2277 | * | |
2278 | * So the code below is trying to detect if we are in the stub | |
2279 | * ("shr1" stub), and if so, find the real code ("shr1" trampoline), | |
2280 | * and if found, do the symbolization from the real-code address | |
2281 | * rather than the stub address. | |
2282 | * | |
2283 | * Assumptions being made about the minimal symbol table: | |
2284 | * 1. lookup_minimal_symbol_by_pc() will return a trampoline only | |
c378eb4e | 2285 | * if we're really in the trampoline.s If we're beyond it (say |
9af17804 | 2286 | * we're in "foo" in the above example), it'll have a closer |
c906108c SS |
2287 | * symbol (the "foo" text symbol for example) and will not |
2288 | * return the trampoline. | |
2289 | * 2. lookup_minimal_symbol_text() will find a real text symbol | |
2290 | * corresponding to the trampoline, and whose address will | |
c378eb4e | 2291 | * be different than the trampoline address. I put in a sanity |
c906108c SS |
2292 | * check for the address being the same, to avoid an |
2293 | * infinite recursion. | |
2294 | */ | |
c5aa993b JM |
2295 | msymbol = lookup_minimal_symbol_by_pc (pc); |
2296 | if (msymbol != NULL) | |
c906108c | 2297 | if (MSYMBOL_TYPE (msymbol) == mst_solib_trampoline) |
c5aa993b | 2298 | { |
2335f48e | 2299 | mfunsym = lookup_minimal_symbol_text (SYMBOL_LINKAGE_NAME (msymbol), |
5520a790 | 2300 | NULL); |
c5aa993b JM |
2301 | if (mfunsym == NULL) |
2302 | /* I eliminated this warning since it is coming out | |
2303 | * in the following situation: | |
2304 | * gdb shmain // test program with shared libraries | |
2305 | * (gdb) break shr1 // function in shared lib | |
2306 | * Warning: In stub for ... | |
9af17804 | 2307 | * In the above situation, the shared lib is not loaded yet, |
c5aa993b JM |
2308 | * so of course we can't find the real func/line info, |
2309 | * but the "break" still works, and the warning is annoying. | |
c378eb4e | 2310 | * So I commented out the warning. RT */ |
3e43a32a | 2311 | /* warning ("In stub for %s; unable to find real function/line info", |
c378eb4e MS |
2312 | SYMBOL_LINKAGE_NAME (msymbol)); */ |
2313 | ; | |
c5aa993b | 2314 | /* fall through */ |
3e43a32a MS |
2315 | else if (SYMBOL_VALUE_ADDRESS (mfunsym) |
2316 | == SYMBOL_VALUE_ADDRESS (msymbol)) | |
c5aa993b | 2317 | /* Avoid infinite recursion */ |
c378eb4e | 2318 | /* See above comment about why warning is commented out. */ |
3e43a32a | 2319 | /* warning ("In stub for %s; unable to find real function/line info", |
c378eb4e MS |
2320 | SYMBOL_LINKAGE_NAME (msymbol)); */ |
2321 | ; | |
c5aa993b JM |
2322 | /* fall through */ |
2323 | else | |
82cf6c60 | 2324 | return find_pc_line (SYMBOL_VALUE_ADDRESS (mfunsym), 0); |
c5aa993b | 2325 | } |
c906108c SS |
2326 | |
2327 | ||
2328 | s = find_pc_sect_symtab (pc, section); | |
2329 | if (!s) | |
2330 | { | |
c378eb4e | 2331 | /* If no symbol information, return previous pc. */ |
c906108c SS |
2332 | if (notcurrent) |
2333 | pc++; | |
2334 | val.pc = pc; | |
2335 | return val; | |
2336 | } | |
2337 | ||
2338 | bv = BLOCKVECTOR (s); | |
93b55aa1 | 2339 | objfile = s->objfile; |
c906108c SS |
2340 | |
2341 | /* Look at all the symtabs that share this blockvector. | |
2342 | They all have the same apriori range, that we found was right; | |
2343 | but they have different line tables. */ | |
2344 | ||
93b55aa1 | 2345 | ALL_OBJFILE_SYMTABS (objfile, s) |
c906108c | 2346 | { |
93b55aa1 JK |
2347 | if (BLOCKVECTOR (s) != bv) |
2348 | continue; | |
2349 | ||
c906108c SS |
2350 | /* Find the best line in this symtab. */ |
2351 | l = LINETABLE (s); | |
2352 | if (!l) | |
c5aa993b | 2353 | continue; |
c906108c SS |
2354 | len = l->nitems; |
2355 | if (len <= 0) | |
2356 | { | |
2357 | /* I think len can be zero if the symtab lacks line numbers | |
2358 | (e.g. gcc -g1). (Either that or the LINETABLE is NULL; | |
2359 | I'm not sure which, and maybe it depends on the symbol | |
2360 | reader). */ | |
2361 | continue; | |
2362 | } | |
2363 | ||
2364 | prev = NULL; | |
c378eb4e | 2365 | item = l->item; /* Get first line info. */ |
c906108c SS |
2366 | |
2367 | /* Is this file's first line closer than the first lines of other files? | |
c5aa993b | 2368 | If so, record this file, and its first line, as best alternate. */ |
c906108c | 2369 | if (item->pc > pc && (!alt || item->pc < alt->pc)) |
c656bca5 | 2370 | alt = item; |
c906108c SS |
2371 | |
2372 | for (i = 0; i < len; i++, item++) | |
2373 | { | |
2374 | /* Leave prev pointing to the linetable entry for the last line | |
2375 | that started at or before PC. */ | |
2376 | if (item->pc > pc) | |
2377 | break; | |
2378 | ||
2379 | prev = item; | |
2380 | } | |
2381 | ||
2382 | /* At this point, prev points at the line whose start addr is <= pc, and | |
c5aa993b JM |
2383 | item points at the next line. If we ran off the end of the linetable |
2384 | (pc >= start of the last line), then prev == item. If pc < start of | |
2385 | the first line, prev will not be set. */ | |
c906108c SS |
2386 | |
2387 | /* Is this file's best line closer than the best in the other files? | |
083ae935 DJ |
2388 | If so, record this file, and its best line, as best so far. Don't |
2389 | save prev if it represents the end of a function (i.e. line number | |
2390 | 0) instead of a real line. */ | |
c906108c | 2391 | |
083ae935 | 2392 | if (prev && prev->line && (!best || prev->pc > best->pc)) |
c906108c SS |
2393 | { |
2394 | best = prev; | |
2395 | best_symtab = s; | |
25d53da1 KB |
2396 | |
2397 | /* Discard BEST_END if it's before the PC of the current BEST. */ | |
2398 | if (best_end <= best->pc) | |
2399 | best_end = 0; | |
c906108c | 2400 | } |
25d53da1 KB |
2401 | |
2402 | /* If another line (denoted by ITEM) is in the linetable and its | |
2403 | PC is after BEST's PC, but before the current BEST_END, then | |
2404 | use ITEM's PC as the new best_end. */ | |
2405 | if (best && i < len && item->pc > best->pc | |
2406 | && (best_end == 0 || best_end > item->pc)) | |
2407 | best_end = item->pc; | |
c906108c SS |
2408 | } |
2409 | ||
2410 | if (!best_symtab) | |
2411 | { | |
e86e87f7 DJ |
2412 | /* If we didn't find any line number info, just return zeros. |
2413 | We used to return alt->line - 1 here, but that could be | |
2414 | anywhere; if we don't have line number info for this PC, | |
2415 | don't make some up. */ | |
2416 | val.pc = pc; | |
c906108c | 2417 | } |
e8717518 FF |
2418 | else if (best->line == 0) |
2419 | { | |
2420 | /* If our best fit is in a range of PC's for which no line | |
2421 | number info is available (line number is zero) then we didn't | |
c378eb4e | 2422 | find any valid line information. */ |
e8717518 FF |
2423 | val.pc = pc; |
2424 | } | |
c906108c SS |
2425 | else |
2426 | { | |
2427 | val.symtab = best_symtab; | |
2428 | val.line = best->line; | |
2429 | val.pc = best->pc; | |
2430 | if (best_end && (!alt || best_end < alt->pc)) | |
2431 | val.end = best_end; | |
2432 | else if (alt) | |
2433 | val.end = alt->pc; | |
2434 | else | |
2435 | val.end = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); | |
2436 | } | |
2437 | val.section = section; | |
2438 | return val; | |
2439 | } | |
2440 | ||
c378eb4e | 2441 | /* Backward compatibility (no section). */ |
c906108c SS |
2442 | |
2443 | struct symtab_and_line | |
fba45db2 | 2444 | find_pc_line (CORE_ADDR pc, int notcurrent) |
c906108c | 2445 | { |
714835d5 | 2446 | struct obj_section *section; |
c906108c SS |
2447 | |
2448 | section = find_pc_overlay (pc); | |
2449 | if (pc_in_unmapped_range (pc, section)) | |
2450 | pc = overlay_mapped_address (pc, section); | |
2451 | return find_pc_sect_line (pc, section, notcurrent); | |
2452 | } | |
c906108c | 2453 | \f |
c906108c SS |
2454 | /* Find line number LINE in any symtab whose name is the same as |
2455 | SYMTAB. | |
2456 | ||
2457 | If found, return the symtab that contains the linetable in which it was | |
2458 | found, set *INDEX to the index in the linetable of the best entry | |
2459 | found, and set *EXACT_MATCH nonzero if the value returned is an | |
2460 | exact match. | |
2461 | ||
2462 | If not found, return NULL. */ | |
2463 | ||
50641945 | 2464 | struct symtab * |
433759f7 MS |
2465 | find_line_symtab (struct symtab *symtab, int line, |
2466 | int *index, int *exact_match) | |
c906108c | 2467 | { |
6f43c46f | 2468 | int exact = 0; /* Initialized here to avoid a compiler warning. */ |
c906108c SS |
2469 | |
2470 | /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE | |
2471 | so far seen. */ | |
2472 | ||
2473 | int best_index; | |
2474 | struct linetable *best_linetable; | |
2475 | struct symtab *best_symtab; | |
2476 | ||
2477 | /* First try looking it up in the given symtab. */ | |
2478 | best_linetable = LINETABLE (symtab); | |
2479 | best_symtab = symtab; | |
f8eba3c6 | 2480 | best_index = find_line_common (best_linetable, line, &exact, 0); |
c906108c SS |
2481 | if (best_index < 0 || !exact) |
2482 | { | |
2483 | /* Didn't find an exact match. So we better keep looking for | |
c5aa993b JM |
2484 | another symtab with the same name. In the case of xcoff, |
2485 | multiple csects for one source file (produced by IBM's FORTRAN | |
2486 | compiler) produce multiple symtabs (this is unavoidable | |
2487 | assuming csects can be at arbitrary places in memory and that | |
2488 | the GLOBAL_BLOCK of a symtab has a begin and end address). */ | |
c906108c SS |
2489 | |
2490 | /* BEST is the smallest linenumber > LINE so far seen, | |
c5aa993b JM |
2491 | or 0 if none has been seen so far. |
2492 | BEST_INDEX and BEST_LINETABLE identify the item for it. */ | |
c906108c SS |
2493 | int best; |
2494 | ||
2495 | struct objfile *objfile; | |
2496 | struct symtab *s; | |
2497 | ||
2498 | if (best_index >= 0) | |
2499 | best = best_linetable->item[best_index].line; | |
2500 | else | |
2501 | best = 0; | |
2502 | ||
ccefe4c4 | 2503 | ALL_OBJFILES (objfile) |
51432cca | 2504 | { |
ccefe4c4 | 2505 | if (objfile->sf) |
652a8996 | 2506 | objfile->sf->qf->expand_symtabs_with_fullname (objfile, |
05cba821 | 2507 | symtab_to_fullname (symtab)); |
51432cca CES |
2508 | } |
2509 | ||
c906108c | 2510 | ALL_SYMTABS (objfile, s) |
c5aa993b JM |
2511 | { |
2512 | struct linetable *l; | |
2513 | int ind; | |
c906108c | 2514 | |
3ffc00b8 | 2515 | if (FILENAME_CMP (symtab->filename, s->filename) != 0) |
c5aa993b | 2516 | continue; |
d180bcbd JK |
2517 | if (FILENAME_CMP (symtab_to_fullname (symtab), |
2518 | symtab_to_fullname (s)) != 0) | |
3ffc00b8 | 2519 | continue; |
c5aa993b | 2520 | l = LINETABLE (s); |
f8eba3c6 | 2521 | ind = find_line_common (l, line, &exact, 0); |
c5aa993b JM |
2522 | if (ind >= 0) |
2523 | { | |
2524 | if (exact) | |
2525 | { | |
2526 | best_index = ind; | |
2527 | best_linetable = l; | |
2528 | best_symtab = s; | |
2529 | goto done; | |
2530 | } | |
2531 | if (best == 0 || l->item[ind].line < best) | |
2532 | { | |
2533 | best = l->item[ind].line; | |
2534 | best_index = ind; | |
2535 | best_linetable = l; | |
2536 | best_symtab = s; | |
2537 | } | |
2538 | } | |
2539 | } | |
c906108c | 2540 | } |
c5aa993b | 2541 | done: |
c906108c SS |
2542 | if (best_index < 0) |
2543 | return NULL; | |
2544 | ||
2545 | if (index) | |
2546 | *index = best_index; | |
2547 | if (exact_match) | |
2548 | *exact_match = exact; | |
2549 | ||
2550 | return best_symtab; | |
2551 | } | |
f8eba3c6 TT |
2552 | |
2553 | /* Given SYMTAB, returns all the PCs function in the symtab that | |
2554 | exactly match LINE. Returns NULL if there are no exact matches, | |
2555 | but updates BEST_ITEM in this case. */ | |
2556 | ||
2557 | VEC (CORE_ADDR) * | |
2558 | find_pcs_for_symtab_line (struct symtab *symtab, int line, | |
2559 | struct linetable_entry **best_item) | |
2560 | { | |
c656bca5 | 2561 | int start = 0; |
f8eba3c6 TT |
2562 | VEC (CORE_ADDR) *result = NULL; |
2563 | ||
2564 | /* First, collect all the PCs that are at this line. */ | |
2565 | while (1) | |
2566 | { | |
2567 | int was_exact; | |
2568 | int idx; | |
2569 | ||
2570 | idx = find_line_common (LINETABLE (symtab), line, &was_exact, start); | |
2571 | if (idx < 0) | |
2572 | break; | |
2573 | ||
2574 | if (!was_exact) | |
2575 | { | |
2576 | struct linetable_entry *item = &LINETABLE (symtab)->item[idx]; | |
2577 | ||
2578 | if (*best_item == NULL || item->line < (*best_item)->line) | |
2579 | *best_item = item; | |
2580 | ||
2581 | break; | |
2582 | } | |
2583 | ||
2584 | VEC_safe_push (CORE_ADDR, result, LINETABLE (symtab)->item[idx].pc); | |
2585 | start = idx + 1; | |
2586 | } | |
2587 | ||
2588 | return result; | |
2589 | } | |
2590 | ||
c906108c SS |
2591 | \f |
2592 | /* Set the PC value for a given source file and line number and return true. | |
2593 | Returns zero for invalid line number (and sets the PC to 0). | |
2594 | The source file is specified with a struct symtab. */ | |
2595 | ||
2596 | int | |
fba45db2 | 2597 | find_line_pc (struct symtab *symtab, int line, CORE_ADDR *pc) |
c906108c SS |
2598 | { |
2599 | struct linetable *l; | |
2600 | int ind; | |
2601 | ||
2602 | *pc = 0; | |
2603 | if (symtab == 0) | |
2604 | return 0; | |
2605 | ||
2606 | symtab = find_line_symtab (symtab, line, &ind, NULL); | |
2607 | if (symtab != NULL) | |
2608 | { | |
2609 | l = LINETABLE (symtab); | |
2610 | *pc = l->item[ind].pc; | |
2611 | return 1; | |
2612 | } | |
2613 | else | |
2614 | return 0; | |
2615 | } | |
2616 | ||
2617 | /* Find the range of pc values in a line. | |
2618 | Store the starting pc of the line into *STARTPTR | |
2619 | and the ending pc (start of next line) into *ENDPTR. | |
2620 | Returns 1 to indicate success. | |
2621 | Returns 0 if could not find the specified line. */ | |
2622 | ||
2623 | int | |
fba45db2 KB |
2624 | find_line_pc_range (struct symtab_and_line sal, CORE_ADDR *startptr, |
2625 | CORE_ADDR *endptr) | |
c906108c SS |
2626 | { |
2627 | CORE_ADDR startaddr; | |
2628 | struct symtab_and_line found_sal; | |
2629 | ||
2630 | startaddr = sal.pc; | |
c5aa993b | 2631 | if (startaddr == 0 && !find_line_pc (sal.symtab, sal.line, &startaddr)) |
c906108c SS |
2632 | return 0; |
2633 | ||
2634 | /* This whole function is based on address. For example, if line 10 has | |
2635 | two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then | |
2636 | "info line *0x123" should say the line goes from 0x100 to 0x200 | |
2637 | and "info line *0x355" should say the line goes from 0x300 to 0x400. | |
2638 | This also insures that we never give a range like "starts at 0x134 | |
2639 | and ends at 0x12c". */ | |
2640 | ||
2641 | found_sal = find_pc_sect_line (startaddr, sal.section, 0); | |
2642 | if (found_sal.line != sal.line) | |
2643 | { | |
2644 | /* The specified line (sal) has zero bytes. */ | |
2645 | *startptr = found_sal.pc; | |
2646 | *endptr = found_sal.pc; | |
2647 | } | |
2648 | else | |
2649 | { | |
2650 | *startptr = found_sal.pc; | |
2651 | *endptr = found_sal.end; | |
2652 | } | |
2653 | return 1; | |
2654 | } | |
2655 | ||
2656 | /* Given a line table and a line number, return the index into the line | |
2657 | table for the pc of the nearest line whose number is >= the specified one. | |
2658 | Return -1 if none is found. The value is >= 0 if it is an index. | |
f8eba3c6 | 2659 | START is the index at which to start searching the line table. |
c906108c SS |
2660 | |
2661 | Set *EXACT_MATCH nonzero if the value returned is an exact match. */ | |
2662 | ||
2663 | static int | |
aa1ee363 | 2664 | find_line_common (struct linetable *l, int lineno, |
f8eba3c6 | 2665 | int *exact_match, int start) |
c906108c | 2666 | { |
52f0bd74 AC |
2667 | int i; |
2668 | int len; | |
c906108c SS |
2669 | |
2670 | /* BEST is the smallest linenumber > LINENO so far seen, | |
2671 | or 0 if none has been seen so far. | |
2672 | BEST_INDEX identifies the item for it. */ | |
2673 | ||
2674 | int best_index = -1; | |
2675 | int best = 0; | |
2676 | ||
b7589f7d DJ |
2677 | *exact_match = 0; |
2678 | ||
c906108c SS |
2679 | if (lineno <= 0) |
2680 | return -1; | |
2681 | if (l == 0) | |
2682 | return -1; | |
2683 | ||
2684 | len = l->nitems; | |
f8eba3c6 | 2685 | for (i = start; i < len; i++) |
c906108c | 2686 | { |
aa1ee363 | 2687 | struct linetable_entry *item = &(l->item[i]); |
c906108c SS |
2688 | |
2689 | if (item->line == lineno) | |
2690 | { | |
2691 | /* Return the first (lowest address) entry which matches. */ | |
2692 | *exact_match = 1; | |
2693 | return i; | |
2694 | } | |
2695 | ||
2696 | if (item->line > lineno && (best == 0 || item->line < best)) | |
2697 | { | |
2698 | best = item->line; | |
2699 | best_index = i; | |
2700 | } | |
2701 | } | |
2702 | ||
2703 | /* If we got here, we didn't get an exact match. */ | |
c906108c SS |
2704 | return best_index; |
2705 | } | |
2706 | ||
2707 | int | |
fba45db2 | 2708 | find_pc_line_pc_range (CORE_ADDR pc, CORE_ADDR *startptr, CORE_ADDR *endptr) |
c906108c SS |
2709 | { |
2710 | struct symtab_and_line sal; | |
433759f7 | 2711 | |
c906108c SS |
2712 | sal = find_pc_line (pc, 0); |
2713 | *startptr = sal.pc; | |
2714 | *endptr = sal.end; | |
2715 | return sal.symtab != 0; | |
2716 | } | |
2717 | ||
8c7a1ee8 EZ |
2718 | /* Given a function start address FUNC_ADDR and SYMTAB, find the first |
2719 | address for that function that has an entry in SYMTAB's line info | |
2720 | table. If such an entry cannot be found, return FUNC_ADDR | |
2721 | unaltered. */ | |
eca864fe | 2722 | |
70221824 | 2723 | static CORE_ADDR |
8c7a1ee8 EZ |
2724 | skip_prologue_using_lineinfo (CORE_ADDR func_addr, struct symtab *symtab) |
2725 | { | |
2726 | CORE_ADDR func_start, func_end; | |
2727 | struct linetable *l; | |
952a6d41 | 2728 | int i; |
8c7a1ee8 EZ |
2729 | |
2730 | /* Give up if this symbol has no lineinfo table. */ | |
2731 | l = LINETABLE (symtab); | |
2732 | if (l == NULL) | |
2733 | return func_addr; | |
2734 | ||
2735 | /* Get the range for the function's PC values, or give up if we | |
2736 | cannot, for some reason. */ | |
2737 | if (!find_pc_partial_function (func_addr, NULL, &func_start, &func_end)) | |
2738 | return func_addr; | |
2739 | ||
2740 | /* Linetable entries are ordered by PC values, see the commentary in | |
2741 | symtab.h where `struct linetable' is defined. Thus, the first | |
2742 | entry whose PC is in the range [FUNC_START..FUNC_END[ is the | |
2743 | address we are looking for. */ | |
2744 | for (i = 0; i < l->nitems; i++) | |
2745 | { | |
2746 | struct linetable_entry *item = &(l->item[i]); | |
2747 | ||
2748 | /* Don't use line numbers of zero, they mark special entries in | |
2749 | the table. See the commentary on symtab.h before the | |
2750 | definition of struct linetable. */ | |
2751 | if (item->line > 0 && func_start <= item->pc && item->pc < func_end) | |
2752 | return item->pc; | |
2753 | } | |
2754 | ||
2755 | return func_addr; | |
2756 | } | |
2757 | ||
c906108c SS |
2758 | /* Given a function symbol SYM, find the symtab and line for the start |
2759 | of the function. | |
2760 | If the argument FUNFIRSTLINE is nonzero, we want the first line | |
2761 | of real code inside the function. */ | |
2762 | ||
50641945 | 2763 | struct symtab_and_line |
fba45db2 | 2764 | find_function_start_sal (struct symbol *sym, int funfirstline) |
c906108c | 2765 | { |
059acae7 UW |
2766 | struct symtab_and_line sal; |
2767 | ||
2768 | fixup_symbol_section (sym, NULL); | |
2769 | sal = find_pc_sect_line (BLOCK_START (SYMBOL_BLOCK_VALUE (sym)), | |
2770 | SYMBOL_OBJ_SECTION (sym), 0); | |
2771 | ||
86da934b UW |
2772 | /* We always should have a line for the function start address. |
2773 | If we don't, something is odd. Create a plain SAL refering | |
2774 | just the PC and hope that skip_prologue_sal (if requested) | |
2775 | can find a line number for after the prologue. */ | |
2776 | if (sal.pc < BLOCK_START (SYMBOL_BLOCK_VALUE (sym))) | |
2777 | { | |
2778 | init_sal (&sal); | |
2779 | sal.pspace = current_program_space; | |
2780 | sal.pc = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); | |
2781 | sal.section = SYMBOL_OBJ_SECTION (sym); | |
2782 | } | |
2783 | ||
059acae7 UW |
2784 | if (funfirstline) |
2785 | skip_prologue_sal (&sal); | |
bccdca4a | 2786 | |
059acae7 UW |
2787 | return sal; |
2788 | } | |
2789 | ||
2790 | /* Adjust SAL to the first instruction past the function prologue. | |
2791 | If the PC was explicitly specified, the SAL is not changed. | |
2792 | If the line number was explicitly specified, at most the SAL's PC | |
2793 | is updated. If SAL is already past the prologue, then do nothing. */ | |
eca864fe | 2794 | |
059acae7 UW |
2795 | void |
2796 | skip_prologue_sal (struct symtab_and_line *sal) | |
2797 | { | |
2798 | struct symbol *sym; | |
2799 | struct symtab_and_line start_sal; | |
2800 | struct cleanup *old_chain; | |
8be455d7 | 2801 | CORE_ADDR pc, saved_pc; |
059acae7 UW |
2802 | struct obj_section *section; |
2803 | const char *name; | |
2804 | struct objfile *objfile; | |
2805 | struct gdbarch *gdbarch; | |
edb3359d | 2806 | struct block *b, *function_block; |
8be455d7 | 2807 | int force_skip, skip; |
c906108c | 2808 | |
a4b411d6 | 2809 | /* Do not change the SAL if PC was specified explicitly. */ |
059acae7 UW |
2810 | if (sal->explicit_pc) |
2811 | return; | |
6c95b8df PA |
2812 | |
2813 | old_chain = save_current_space_and_thread (); | |
059acae7 | 2814 | switch_to_program_space_and_thread (sal->pspace); |
6c95b8df | 2815 | |
059acae7 UW |
2816 | sym = find_pc_sect_function (sal->pc, sal->section); |
2817 | if (sym != NULL) | |
bccdca4a | 2818 | { |
059acae7 UW |
2819 | fixup_symbol_section (sym, NULL); |
2820 | ||
2821 | pc = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); | |
2822 | section = SYMBOL_OBJ_SECTION (sym); | |
2823 | name = SYMBOL_LINKAGE_NAME (sym); | |
2824 | objfile = SYMBOL_SYMTAB (sym)->objfile; | |
c906108c | 2825 | } |
059acae7 UW |
2826 | else |
2827 | { | |
2828 | struct minimal_symbol *msymbol | |
2829 | = lookup_minimal_symbol_by_pc_section (sal->pc, sal->section); | |
433759f7 | 2830 | |
059acae7 UW |
2831 | if (msymbol == NULL) |
2832 | { | |
2833 | do_cleanups (old_chain); | |
2834 | return; | |
2835 | } | |
2836 | ||
2837 | pc = SYMBOL_VALUE_ADDRESS (msymbol); | |
2838 | section = SYMBOL_OBJ_SECTION (msymbol); | |
2839 | name = SYMBOL_LINKAGE_NAME (msymbol); | |
2840 | objfile = msymbol_objfile (msymbol); | |
2841 | } | |
2842 | ||
2843 | gdbarch = get_objfile_arch (objfile); | |
2844 | ||
8be455d7 JK |
2845 | /* Process the prologue in two passes. In the first pass try to skip the |
2846 | prologue (SKIP is true) and verify there is a real need for it (indicated | |
2847 | by FORCE_SKIP). If no such reason was found run a second pass where the | |
2848 | prologue is not skipped (SKIP is false). */ | |
059acae7 | 2849 | |
8be455d7 JK |
2850 | skip = 1; |
2851 | force_skip = 1; | |
059acae7 | 2852 | |
8be455d7 JK |
2853 | /* Be conservative - allow direct PC (without skipping prologue) only if we |
2854 | have proven the CU (Compilation Unit) supports it. sal->SYMTAB does not | |
2855 | have to be set by the caller so we use SYM instead. */ | |
2856 | if (sym && SYMBOL_SYMTAB (sym)->locations_valid) | |
2857 | force_skip = 0; | |
059acae7 | 2858 | |
8be455d7 JK |
2859 | saved_pc = pc; |
2860 | do | |
c906108c | 2861 | { |
8be455d7 | 2862 | pc = saved_pc; |
4309257c | 2863 | |
8be455d7 JK |
2864 | /* If the function is in an unmapped overlay, use its unmapped LMA address, |
2865 | so that gdbarch_skip_prologue has something unique to work on. */ | |
2866 | if (section_is_overlay (section) && !section_is_mapped (section)) | |
2867 | pc = overlay_unmapped_address (pc, section); | |
2868 | ||
2869 | /* Skip "first line" of function (which is actually its prologue). */ | |
2870 | pc += gdbarch_deprecated_function_start_offset (gdbarch); | |
2871 | if (skip) | |
2872 | pc = gdbarch_skip_prologue (gdbarch, pc); | |
2873 | ||
2874 | /* For overlays, map pc back into its mapped VMA range. */ | |
2875 | pc = overlay_mapped_address (pc, section); | |
2876 | ||
2877 | /* Calculate line number. */ | |
059acae7 | 2878 | start_sal = find_pc_sect_line (pc, section, 0); |
8be455d7 JK |
2879 | |
2880 | /* Check if gdbarch_skip_prologue left us in mid-line, and the next | |
2881 | line is still part of the same function. */ | |
2882 | if (skip && start_sal.pc != pc | |
b1d96efd JK |
2883 | && (sym ? (BLOCK_START (SYMBOL_BLOCK_VALUE (sym)) <= start_sal.end |
2884 | && start_sal.end < BLOCK_END (SYMBOL_BLOCK_VALUE (sym))) | |
8be455d7 JK |
2885 | : (lookup_minimal_symbol_by_pc_section (start_sal.end, section) |
2886 | == lookup_minimal_symbol_by_pc_section (pc, section)))) | |
2887 | { | |
2888 | /* First pc of next line */ | |
2889 | pc = start_sal.end; | |
2890 | /* Recalculate the line number (might not be N+1). */ | |
2891 | start_sal = find_pc_sect_line (pc, section, 0); | |
2892 | } | |
2893 | ||
2894 | /* On targets with executable formats that don't have a concept of | |
2895 | constructors (ELF with .init has, PE doesn't), gcc emits a call | |
2896 | to `__main' in `main' between the prologue and before user | |
2897 | code. */ | |
2898 | if (gdbarch_skip_main_prologue_p (gdbarch) | |
7ccffd7c | 2899 | && name && strcmp_iw (name, "main") == 0) |
8be455d7 JK |
2900 | { |
2901 | pc = gdbarch_skip_main_prologue (gdbarch, pc); | |
2902 | /* Recalculate the line number (might not be N+1). */ | |
2903 | start_sal = find_pc_sect_line (pc, section, 0); | |
2904 | force_skip = 1; | |
2905 | } | |
4309257c | 2906 | } |
8be455d7 | 2907 | while (!force_skip && skip--); |
4309257c | 2908 | |
8c7a1ee8 EZ |
2909 | /* If we still don't have a valid source line, try to find the first |
2910 | PC in the lineinfo table that belongs to the same function. This | |
2911 | happens with COFF debug info, which does not seem to have an | |
2912 | entry in lineinfo table for the code after the prologue which has | |
2913 | no direct relation to source. For example, this was found to be | |
2914 | the case with the DJGPP target using "gcc -gcoff" when the | |
2915 | compiler inserted code after the prologue to make sure the stack | |
2916 | is aligned. */ | |
8be455d7 | 2917 | if (!force_skip && sym && start_sal.symtab == NULL) |
8c7a1ee8 EZ |
2918 | { |
2919 | pc = skip_prologue_using_lineinfo (pc, SYMBOL_SYMTAB (sym)); | |
2920 | /* Recalculate the line number. */ | |
059acae7 | 2921 | start_sal = find_pc_sect_line (pc, section, 0); |
8c7a1ee8 EZ |
2922 | } |
2923 | ||
059acae7 UW |
2924 | do_cleanups (old_chain); |
2925 | ||
2926 | /* If we're already past the prologue, leave SAL unchanged. Otherwise | |
2927 | forward SAL to the end of the prologue. */ | |
2928 | if (sal->pc >= pc) | |
2929 | return; | |
2930 | ||
2931 | sal->pc = pc; | |
2932 | sal->section = section; | |
2933 | ||
2934 | /* Unless the explicit_line flag was set, update the SAL line | |
2935 | and symtab to correspond to the modified PC location. */ | |
2936 | if (sal->explicit_line) | |
2937 | return; | |
2938 | ||
2939 | sal->symtab = start_sal.symtab; | |
2940 | sal->line = start_sal.line; | |
2941 | sal->end = start_sal.end; | |
c906108c | 2942 | |
edb3359d DJ |
2943 | /* Check if we are now inside an inlined function. If we can, |
2944 | use the call site of the function instead. */ | |
059acae7 | 2945 | b = block_for_pc_sect (sal->pc, sal->section); |
edb3359d DJ |
2946 | function_block = NULL; |
2947 | while (b != NULL) | |
2948 | { | |
2949 | if (BLOCK_FUNCTION (b) != NULL && block_inlined_p (b)) | |
2950 | function_block = b; | |
2951 | else if (BLOCK_FUNCTION (b) != NULL) | |
2952 | break; | |
2953 | b = BLOCK_SUPERBLOCK (b); | |
2954 | } | |
2955 | if (function_block != NULL | |
2956 | && SYMBOL_LINE (BLOCK_FUNCTION (function_block)) != 0) | |
2957 | { | |
059acae7 UW |
2958 | sal->line = SYMBOL_LINE (BLOCK_FUNCTION (function_block)); |
2959 | sal->symtab = SYMBOL_SYMTAB (BLOCK_FUNCTION (function_block)); | |
edb3359d | 2960 | } |
c906108c | 2961 | } |
50641945 | 2962 | |
c906108c SS |
2963 | /* If P is of the form "operator[ \t]+..." where `...' is |
2964 | some legitimate operator text, return a pointer to the | |
2965 | beginning of the substring of the operator text. | |
2966 | Otherwise, return "". */ | |
eca864fe | 2967 | |
fc9f3a69 | 2968 | static char * |
fba45db2 | 2969 | operator_chars (char *p, char **end) |
c906108c SS |
2970 | { |
2971 | *end = ""; | |
2972 | if (strncmp (p, "operator", 8)) | |
2973 | return *end; | |
2974 | p += 8; | |
2975 | ||
2976 | /* Don't get faked out by `operator' being part of a longer | |
2977 | identifier. */ | |
c5aa993b | 2978 | if (isalpha (*p) || *p == '_' || *p == '$' || *p == '\0') |
c906108c SS |
2979 | return *end; |
2980 | ||
2981 | /* Allow some whitespace between `operator' and the operator symbol. */ | |
2982 | while (*p == ' ' || *p == '\t') | |
2983 | p++; | |
2984 | ||
c378eb4e | 2985 | /* Recognize 'operator TYPENAME'. */ |
c906108c | 2986 | |
c5aa993b | 2987 | if (isalpha (*p) || *p == '_' || *p == '$') |
c906108c | 2988 | { |
aa1ee363 | 2989 | char *q = p + 1; |
433759f7 | 2990 | |
c5aa993b | 2991 | while (isalnum (*q) || *q == '_' || *q == '$') |
c906108c SS |
2992 | q++; |
2993 | *end = q; | |
2994 | return p; | |
2995 | } | |
2996 | ||
53e8ad3d MS |
2997 | while (*p) |
2998 | switch (*p) | |
2999 | { | |
3000 | case '\\': /* regexp quoting */ | |
3001 | if (p[1] == '*') | |
3002 | { | |
3e43a32a | 3003 | if (p[2] == '=') /* 'operator\*=' */ |
53e8ad3d MS |
3004 | *end = p + 3; |
3005 | else /* 'operator\*' */ | |
3006 | *end = p + 2; | |
3007 | return p; | |
3008 | } | |
3009 | else if (p[1] == '[') | |
3010 | { | |
3011 | if (p[2] == ']') | |
3e43a32a MS |
3012 | error (_("mismatched quoting on brackets, " |
3013 | "try 'operator\\[\\]'")); | |
53e8ad3d MS |
3014 | else if (p[2] == '\\' && p[3] == ']') |
3015 | { | |
3016 | *end = p + 4; /* 'operator\[\]' */ | |
3017 | return p; | |
3018 | } | |
3019 | else | |
8a3fe4f8 | 3020 | error (_("nothing is allowed between '[' and ']'")); |
53e8ad3d | 3021 | } |
9af17804 | 3022 | else |
53e8ad3d | 3023 | { |
c378eb4e | 3024 | /* Gratuitous qoute: skip it and move on. */ |
53e8ad3d MS |
3025 | p++; |
3026 | continue; | |
3027 | } | |
3028 | break; | |
3029 | case '!': | |
3030 | case '=': | |
3031 | case '*': | |
3032 | case '/': | |
3033 | case '%': | |
3034 | case '^': | |
3035 | if (p[1] == '=') | |
3036 | *end = p + 2; | |
3037 | else | |
3038 | *end = p + 1; | |
3039 | return p; | |
3040 | case '<': | |
3041 | case '>': | |
3042 | case '+': | |
3043 | case '-': | |
3044 | case '&': | |
3045 | case '|': | |
3046 | if (p[0] == '-' && p[1] == '>') | |
3047 | { | |
c378eb4e | 3048 | /* Struct pointer member operator 'operator->'. */ |
53e8ad3d MS |
3049 | if (p[2] == '*') |
3050 | { | |
3051 | *end = p + 3; /* 'operator->*' */ | |
3052 | return p; | |
3053 | } | |
3054 | else if (p[2] == '\\') | |
3055 | { | |
3056 | *end = p + 4; /* Hopefully 'operator->\*' */ | |
3057 | return p; | |
3058 | } | |
3059 | else | |
3060 | { | |
3061 | *end = p + 2; /* 'operator->' */ | |
3062 | return p; | |
3063 | } | |
3064 | } | |
3065 | if (p[1] == '=' || p[1] == p[0]) | |
3066 | *end = p + 2; | |
3067 | else | |
3068 | *end = p + 1; | |
3069 | return p; | |
3070 | case '~': | |
3071 | case ',': | |
c5aa993b | 3072 | *end = p + 1; |
53e8ad3d MS |
3073 | return p; |
3074 | case '(': | |
3075 | if (p[1] != ')') | |
3e43a32a MS |
3076 | error (_("`operator ()' must be specified " |
3077 | "without whitespace in `()'")); | |
c5aa993b | 3078 | *end = p + 2; |
53e8ad3d MS |
3079 | return p; |
3080 | case '?': | |
3081 | if (p[1] != ':') | |
3e43a32a MS |
3082 | error (_("`operator ?:' must be specified " |
3083 | "without whitespace in `?:'")); | |
53e8ad3d MS |
3084 | *end = p + 2; |
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 | default: | |
8a3fe4f8 | 3093 | error (_("`operator %s' not supported"), p); |
53e8ad3d MS |
3094 | break; |
3095 | } | |
3096 | ||
c906108c SS |
3097 | *end = ""; |
3098 | return *end; | |
3099 | } | |
c906108c | 3100 | \f |
c5aa993b | 3101 | |
9fdc877b DE |
3102 | /* Cache to watch for file names already seen by filename_seen. */ |
3103 | ||
3104 | struct filename_seen_cache | |
3105 | { | |
3106 | /* Table of files seen so far. */ | |
2908cac6 DE |
3107 | htab_t tab; |
3108 | /* Initial size of the table. It automagically grows from here. */ | |
9fdc877b | 3109 | #define INITIAL_FILENAME_SEEN_CACHE_SIZE 100 |
9fdc877b DE |
3110 | }; |
3111 | ||
3112 | /* filename_seen_cache constructor. */ | |
3113 | ||
3114 | static struct filename_seen_cache * | |
3115 | create_filename_seen_cache (void) | |
3116 | { | |
3117 | struct filename_seen_cache *cache; | |
3118 | ||
3119 | cache = XNEW (struct filename_seen_cache); | |
2908cac6 DE |
3120 | cache->tab = htab_create_alloc (INITIAL_FILENAME_SEEN_CACHE_SIZE, |
3121 | filename_hash, filename_eq, | |
3122 | NULL, xcalloc, xfree); | |
9fdc877b DE |
3123 | |
3124 | return cache; | |
3125 | } | |
3126 | ||
3127 | /* Empty the cache, but do not delete it. */ | |
3128 | ||
3129 | static void | |
2908cac6 | 3130 | clear_filename_seen_cache (struct filename_seen_cache *cache) |
9fdc877b | 3131 | { |
2908cac6 | 3132 | htab_empty (cache->tab); |
9fdc877b DE |
3133 | } |
3134 | ||
3135 | /* filename_seen_cache destructor. | |
3136 | This takes a void * argument as it is generally used as a cleanup. */ | |
3137 | ||
3138 | static void | |
3139 | delete_filename_seen_cache (void *ptr) | |
3140 | { | |
3141 | struct filename_seen_cache *cache = ptr; | |
3142 | ||
2908cac6 | 3143 | htab_delete (cache->tab); |
9fdc877b DE |
3144 | xfree (cache); |
3145 | } | |
3146 | ||
a2b6eff5 | 3147 | /* If FILE is not already in the table of files in CACHE, return zero; |
c94fdfd0 | 3148 | otherwise return non-zero. Optionally add FILE to the table if ADD |
2908cac6 DE |
3149 | is non-zero. |
3150 | ||
3151 | NOTE: We don't manage space for FILE, we assume FILE lives as long | |
3152 | as the caller needs. */ | |
eca864fe | 3153 | |
c94fdfd0 | 3154 | static int |
9fdc877b | 3155 | filename_seen (struct filename_seen_cache *cache, const char *file, int add) |
c906108c | 3156 | { |
2908cac6 | 3157 | void **slot; |
c906108c | 3158 | |
c94fdfd0 | 3159 | /* Is FILE in tab? */ |
2908cac6 DE |
3160 | slot = htab_find_slot (cache->tab, file, add ? INSERT : NO_INSERT); |
3161 | if (*slot != NULL) | |
3162 | return 1; | |
c94fdfd0 EZ |
3163 | |
3164 | /* No; maybe add it to tab. */ | |
3165 | if (add) | |
2908cac6 | 3166 | *slot = (char *) file; |
c906108c | 3167 | |
c94fdfd0 EZ |
3168 | return 0; |
3169 | } | |
3170 | ||
9fdc877b DE |
3171 | /* Data structure to maintain printing state for output_source_filename. */ |
3172 | ||
3173 | struct output_source_filename_data | |
3174 | { | |
3175 | /* Cache of what we've seen so far. */ | |
3176 | struct filename_seen_cache *filename_seen_cache; | |
3177 | ||
3178 | /* Flag of whether we're printing the first one. */ | |
3179 | int first; | |
3180 | }; | |
3181 | ||
c94fdfd0 | 3182 | /* Slave routine for sources_info. Force line breaks at ,'s. |
9fdc877b DE |
3183 | NAME is the name to print. |
3184 | DATA contains the state for printing and watching for duplicates. */ | |
eca864fe | 3185 | |
c94fdfd0 | 3186 | static void |
9fdc877b DE |
3187 | output_source_filename (const char *name, |
3188 | struct output_source_filename_data *data) | |
c94fdfd0 EZ |
3189 | { |
3190 | /* Since a single source file can result in several partial symbol | |
3191 | tables, we need to avoid printing it more than once. Note: if | |
3192 | some of the psymtabs are read in and some are not, it gets | |
3193 | printed both under "Source files for which symbols have been | |
3194 | read" and "Source files for which symbols will be read in on | |
3195 | demand". I consider this a reasonable way to deal with the | |
3196 | situation. I'm not sure whether this can also happen for | |
3197 | symtabs; it doesn't hurt to check. */ | |
3198 | ||
3199 | /* Was NAME already seen? */ | |
9fdc877b | 3200 | if (filename_seen (data->filename_seen_cache, name, 1)) |
c94fdfd0 EZ |
3201 | { |
3202 | /* Yes; don't print it again. */ | |
3203 | return; | |
3204 | } | |
9fdc877b | 3205 | |
c94fdfd0 | 3206 | /* No; print it and reset *FIRST. */ |
9fdc877b DE |
3207 | if (! data->first) |
3208 | printf_filtered (", "); | |
3209 | data->first = 0; | |
c906108c SS |
3210 | |
3211 | wrap_here (""); | |
3212 | fputs_filtered (name, gdb_stdout); | |
c5aa993b | 3213 | } |
c906108c | 3214 | |
ccefe4c4 | 3215 | /* A callback for map_partial_symbol_filenames. */ |
eca864fe | 3216 | |
ccefe4c4 | 3217 | static void |
533a737e | 3218 | output_partial_symbol_filename (const char *filename, const char *fullname, |
ccefe4c4 TT |
3219 | void *data) |
3220 | { | |
3221 | output_source_filename (fullname ? fullname : filename, data); | |
3222 | } | |
3223 | ||
c906108c | 3224 | static void |
fba45db2 | 3225 | sources_info (char *ignore, int from_tty) |
c906108c | 3226 | { |
52f0bd74 | 3227 | struct symtab *s; |
52f0bd74 | 3228 | struct objfile *objfile; |
9fdc877b DE |
3229 | struct output_source_filename_data data; |
3230 | struct cleanup *cleanups; | |
c5aa993b | 3231 | |
c906108c SS |
3232 | if (!have_full_symbols () && !have_partial_symbols ()) |
3233 | { | |
8a3fe4f8 | 3234 | error (_("No symbol table is loaded. Use the \"file\" command.")); |
c906108c | 3235 | } |
c5aa993b | 3236 | |
9fdc877b DE |
3237 | data.filename_seen_cache = create_filename_seen_cache (); |
3238 | cleanups = make_cleanup (delete_filename_seen_cache, | |
3239 | data.filename_seen_cache); | |
3240 | ||
c906108c SS |
3241 | printf_filtered ("Source files for which symbols have been read in:\n\n"); |
3242 | ||
9fdc877b | 3243 | data.first = 1; |
c906108c | 3244 | ALL_SYMTABS (objfile, s) |
c5aa993b | 3245 | { |
d092d1a2 | 3246 | const char *fullname = symtab_to_fullname (s); |
433759f7 | 3247 | |
f35a17b5 | 3248 | output_source_filename (fullname, &data); |
c5aa993b | 3249 | } |
c906108c | 3250 | printf_filtered ("\n\n"); |
c5aa993b | 3251 | |
3e43a32a MS |
3252 | printf_filtered ("Source files for which symbols " |
3253 | "will be read in on demand:\n\n"); | |
c906108c | 3254 | |
9fdc877b DE |
3255 | clear_filename_seen_cache (data.filename_seen_cache); |
3256 | data.first = 1; | |
3257 | map_partial_symbol_filenames (output_partial_symbol_filename, &data, | |
74e2f255 | 3258 | 1 /*need_fullname*/); |
c906108c | 3259 | printf_filtered ("\n"); |
9fdc877b DE |
3260 | |
3261 | do_cleanups (cleanups); | |
c906108c SS |
3262 | } |
3263 | ||
fbd9ab74 JK |
3264 | /* Compare FILE against all the NFILES entries of FILES. If BASENAMES is |
3265 | non-zero compare only lbasename of FILES. */ | |
3266 | ||
c906108c | 3267 | static int |
fbd9ab74 | 3268 | file_matches (const char *file, char *files[], int nfiles, int basenames) |
c906108c SS |
3269 | { |
3270 | int i; | |
3271 | ||
3272 | if (file != NULL && nfiles != 0) | |
3273 | { | |
3274 | for (i = 0; i < nfiles; i++) | |
c5aa993b | 3275 | { |
fbd9ab74 JK |
3276 | if (compare_filenames_for_search (file, (basenames |
3277 | ? lbasename (files[i]) | |
3278 | : files[i]))) | |
c5aa993b JM |
3279 | return 1; |
3280 | } | |
c906108c SS |
3281 | } |
3282 | else if (nfiles == 0) | |
3283 | return 1; | |
3284 | return 0; | |
3285 | } | |
3286 | ||
c378eb4e | 3287 | /* Free any memory associated with a search. */ |
eca864fe | 3288 | |
c906108c | 3289 | void |
fba45db2 | 3290 | free_search_symbols (struct symbol_search *symbols) |
c906108c SS |
3291 | { |
3292 | struct symbol_search *p; | |
3293 | struct symbol_search *next; | |
3294 | ||
3295 | for (p = symbols; p != NULL; p = next) | |
3296 | { | |
3297 | next = p->next; | |
b8c9b27d | 3298 | xfree (p); |
c906108c SS |
3299 | } |
3300 | } | |
3301 | ||
5bd98722 AC |
3302 | static void |
3303 | do_free_search_symbols_cleanup (void *symbols) | |
3304 | { | |
3305 | free_search_symbols (symbols); | |
3306 | } | |
3307 | ||
3308 | struct cleanup * | |
3309 | make_cleanup_free_search_symbols (struct symbol_search *symbols) | |
3310 | { | |
3311 | return make_cleanup (do_free_search_symbols_cleanup, symbols); | |
3312 | } | |
3313 | ||
434d2d4f DJ |
3314 | /* Helper function for sort_search_symbols and qsort. Can only |
3315 | sort symbols, not minimal symbols. */ | |
eca864fe | 3316 | |
434d2d4f DJ |
3317 | static int |
3318 | compare_search_syms (const void *sa, const void *sb) | |
3319 | { | |
3320 | struct symbol_search **sym_a = (struct symbol_search **) sa; | |
3321 | struct symbol_search **sym_b = (struct symbol_search **) sb; | |
3322 | ||
de5ad195 DC |
3323 | return strcmp (SYMBOL_PRINT_NAME ((*sym_a)->symbol), |
3324 | SYMBOL_PRINT_NAME ((*sym_b)->symbol)); | |
434d2d4f DJ |
3325 | } |
3326 | ||
3327 | /* Sort the ``nfound'' symbols in the list after prevtail. Leave | |
3328 | prevtail where it is, but update its next pointer to point to | |
3329 | the first of the sorted symbols. */ | |
eca864fe | 3330 | |
434d2d4f DJ |
3331 | static struct symbol_search * |
3332 | sort_search_symbols (struct symbol_search *prevtail, int nfound) | |
3333 | { | |
3334 | struct symbol_search **symbols, *symp, *old_next; | |
3335 | int i; | |
3336 | ||
3337 | symbols = (struct symbol_search **) xmalloc (sizeof (struct symbol_search *) | |
3338 | * nfound); | |
3339 | symp = prevtail->next; | |
3340 | for (i = 0; i < nfound; i++) | |
3341 | { | |
3342 | symbols[i] = symp; | |
3343 | symp = symp->next; | |
3344 | } | |
3345 | /* Generally NULL. */ | |
3346 | old_next = symp; | |
3347 | ||
3348 | qsort (symbols, nfound, sizeof (struct symbol_search *), | |
3349 | compare_search_syms); | |
3350 | ||
3351 | symp = prevtail; | |
3352 | for (i = 0; i < nfound; i++) | |
3353 | { | |
3354 | symp->next = symbols[i]; | |
3355 | symp = symp->next; | |
3356 | } | |
3357 | symp->next = old_next; | |
3358 | ||
8ed32cc0 | 3359 | xfree (symbols); |
434d2d4f DJ |
3360 | return symp; |
3361 | } | |
5bd98722 | 3362 | |
ccefe4c4 TT |
3363 | /* An object of this type is passed as the user_data to the |
3364 | expand_symtabs_matching method. */ | |
3365 | struct search_symbols_data | |
3366 | { | |
3367 | int nfiles; | |
3368 | char **files; | |
681bf369 JK |
3369 | |
3370 | /* It is true if PREG contains valid data, false otherwise. */ | |
3371 | unsigned preg_p : 1; | |
3372 | regex_t preg; | |
ccefe4c4 TT |
3373 | }; |
3374 | ||
3375 | /* A callback for expand_symtabs_matching. */ | |
eca864fe | 3376 | |
ccefe4c4 | 3377 | static int |
fbd9ab74 JK |
3378 | search_symbols_file_matches (const char *filename, void *user_data, |
3379 | int basenames) | |
ccefe4c4 TT |
3380 | { |
3381 | struct search_symbols_data *data = user_data; | |
433759f7 | 3382 | |
fbd9ab74 | 3383 | return file_matches (filename, data->files, data->nfiles, basenames); |
ccefe4c4 TT |
3384 | } |
3385 | ||
3386 | /* A callback for expand_symtabs_matching. */ | |
eca864fe | 3387 | |
ccefe4c4 | 3388 | static int |
e078317b | 3389 | search_symbols_name_matches (const char *symname, void *user_data) |
ccefe4c4 TT |
3390 | { |
3391 | struct search_symbols_data *data = user_data; | |
433759f7 | 3392 | |
681bf369 | 3393 | return !data->preg_p || regexec (&data->preg, symname, 0, NULL, 0) == 0; |
ccefe4c4 TT |
3394 | } |
3395 | ||
c906108c SS |
3396 | /* Search the symbol table for matches to the regular expression REGEXP, |
3397 | returning the results in *MATCHES. | |
3398 | ||
3399 | Only symbols of KIND are searched: | |
e8930875 JK |
3400 | VARIABLES_DOMAIN - search all symbols, excluding functions, type names, |
3401 | and constants (enums) | |
176620f1 EZ |
3402 | FUNCTIONS_DOMAIN - search all functions |
3403 | TYPES_DOMAIN - search all type names | |
7b08b9eb | 3404 | ALL_DOMAIN - an internal error for this function |
c906108c SS |
3405 | |
3406 | free_search_symbols should be called when *MATCHES is no longer needed. | |
434d2d4f DJ |
3407 | |
3408 | The results are sorted locally; each symtab's global and static blocks are | |
c378eb4e MS |
3409 | separately alphabetized. */ |
3410 | ||
c906108c | 3411 | void |
8903c50d TT |
3412 | search_symbols (char *regexp, enum search_domain kind, |
3413 | int nfiles, char *files[], | |
fd118b61 | 3414 | struct symbol_search **matches) |
c906108c | 3415 | { |
52f0bd74 | 3416 | struct symtab *s; |
52f0bd74 | 3417 | struct blockvector *bv; |
52f0bd74 AC |
3418 | struct block *b; |
3419 | int i = 0; | |
8157b174 | 3420 | struct block_iterator iter; |
52f0bd74 | 3421 | struct symbol *sym; |
c906108c SS |
3422 | struct objfile *objfile; |
3423 | struct minimal_symbol *msymbol; | |
c906108c | 3424 | int found_misc = 0; |
bc043ef3 | 3425 | static const enum minimal_symbol_type types[] |
e8930875 | 3426 | = {mst_data, mst_text, mst_abs}; |
bc043ef3 | 3427 | static const enum minimal_symbol_type types2[] |
e8930875 | 3428 | = {mst_bss, mst_file_text, mst_abs}; |
bc043ef3 | 3429 | static const enum minimal_symbol_type types3[] |
e8930875 | 3430 | = {mst_file_data, mst_solib_trampoline, mst_abs}; |
bc043ef3 | 3431 | static const enum minimal_symbol_type types4[] |
e8930875 | 3432 | = {mst_file_bss, mst_text_gnu_ifunc, mst_abs}; |
c906108c SS |
3433 | enum minimal_symbol_type ourtype; |
3434 | enum minimal_symbol_type ourtype2; | |
3435 | enum minimal_symbol_type ourtype3; | |
3436 | enum minimal_symbol_type ourtype4; | |
3437 | struct symbol_search *sr; | |
3438 | struct symbol_search *psr; | |
3439 | struct symbol_search *tail; | |
ccefe4c4 | 3440 | struct search_symbols_data datum; |
c906108c | 3441 | |
681bf369 JK |
3442 | /* OLD_CHAIN .. RETVAL_CHAIN is always freed, RETVAL_CHAIN .. current |
3443 | CLEANUP_CHAIN is freed only in the case of an error. */ | |
3444 | struct cleanup *old_chain = make_cleanup (null_cleanup, NULL); | |
3445 | struct cleanup *retval_chain; | |
3446 | ||
e8930875 JK |
3447 | gdb_assert (kind <= TYPES_DOMAIN); |
3448 | ||
8903c50d TT |
3449 | ourtype = types[kind]; |
3450 | ourtype2 = types2[kind]; | |
3451 | ourtype3 = types3[kind]; | |
3452 | ourtype4 = types4[kind]; | |
c906108c SS |
3453 | |
3454 | sr = *matches = NULL; | |
3455 | tail = NULL; | |
681bf369 | 3456 | datum.preg_p = 0; |
c906108c SS |
3457 | |
3458 | if (regexp != NULL) | |
3459 | { | |
3460 | /* Make sure spacing is right for C++ operators. | |
3461 | This is just a courtesy to make the matching less sensitive | |
3462 | to how many spaces the user leaves between 'operator' | |
c378eb4e | 3463 | and <TYPENAME> or <OPERATOR>. */ |
c906108c SS |
3464 | char *opend; |
3465 | char *opname = operator_chars (regexp, &opend); | |
681bf369 | 3466 | int errcode; |
433759f7 | 3467 | |
c906108c | 3468 | if (*opname) |
c5aa993b | 3469 | { |
3e43a32a MS |
3470 | int fix = -1; /* -1 means ok; otherwise number of |
3471 | spaces needed. */ | |
433759f7 | 3472 | |
c5aa993b JM |
3473 | if (isalpha (*opname) || *opname == '_' || *opname == '$') |
3474 | { | |
c378eb4e | 3475 | /* There should 1 space between 'operator' and 'TYPENAME'. */ |
c5aa993b JM |
3476 | if (opname[-1] != ' ' || opname[-2] == ' ') |
3477 | fix = 1; | |
3478 | } | |
3479 | else | |
3480 | { | |
c378eb4e | 3481 | /* There should 0 spaces between 'operator' and 'OPERATOR'. */ |
c5aa993b JM |
3482 | if (opname[-1] == ' ') |
3483 | fix = 0; | |
3484 | } | |
c378eb4e | 3485 | /* If wrong number of spaces, fix it. */ |
c5aa993b JM |
3486 | if (fix >= 0) |
3487 | { | |
045f55a6 | 3488 | char *tmp = (char *) alloca (8 + fix + strlen (opname) + 1); |
433759f7 | 3489 | |
c5aa993b JM |
3490 | sprintf (tmp, "operator%.*s%s", fix, " ", opname); |
3491 | regexp = tmp; | |
3492 | } | |
3493 | } | |
3494 | ||
559a7a62 JK |
3495 | errcode = regcomp (&datum.preg, regexp, |
3496 | REG_NOSUB | (case_sensitivity == case_sensitive_off | |
3497 | ? REG_ICASE : 0)); | |
681bf369 JK |
3498 | if (errcode != 0) |
3499 | { | |
3500 | char *err = get_regcomp_error (errcode, &datum.preg); | |
3501 | ||
3502 | make_cleanup (xfree, err); | |
3503 | error (_("Invalid regexp (%s): %s"), err, regexp); | |
3504 | } | |
3505 | datum.preg_p = 1; | |
3506 | make_regfree_cleanup (&datum.preg); | |
c906108c SS |
3507 | } |
3508 | ||
3509 | /* Search through the partial symtabs *first* for all symbols | |
3510 | matching the regexp. That way we don't have to reproduce all of | |
c378eb4e | 3511 | the machinery below. */ |
c906108c | 3512 | |
ccefe4c4 TT |
3513 | datum.nfiles = nfiles; |
3514 | datum.files = files; | |
ccefe4c4 | 3515 | ALL_OBJFILES (objfile) |
c5aa993b | 3516 | { |
ccefe4c4 TT |
3517 | if (objfile->sf) |
3518 | objfile->sf->qf->expand_symtabs_matching (objfile, | |
71cddcc1 DE |
3519 | (nfiles == 0 |
3520 | ? NULL | |
3521 | : search_symbols_file_matches), | |
ccefe4c4 TT |
3522 | search_symbols_name_matches, |
3523 | kind, | |
3524 | &datum); | |
c5aa993b | 3525 | } |
c906108c | 3526 | |
681bf369 JK |
3527 | retval_chain = old_chain; |
3528 | ||
c906108c SS |
3529 | /* Here, we search through the minimal symbol tables for functions |
3530 | and variables that match, and force their symbols to be read. | |
3531 | This is in particular necessary for demangled variable names, | |
3532 | which are no longer put into the partial symbol tables. | |
3533 | The symbol will then be found during the scan of symtabs below. | |
3534 | ||
3535 | For functions, find_pc_symtab should succeed if we have debug info | |
422d65e7 DE |
3536 | for the function, for variables we have to call |
3537 | lookup_symbol_in_objfile_from_linkage_name to determine if the variable | |
3538 | has debug info. | |
c906108c | 3539 | If the lookup fails, set found_misc so that we will rescan to print |
422d65e7 DE |
3540 | any matching symbols without debug info. |
3541 | We only search the objfile the msymbol came from, we no longer search | |
3542 | all objfiles. In large programs (1000s of shared libs) searching all | |
3543 | objfiles is not worth the pain. */ | |
c906108c | 3544 | |
176620f1 | 3545 | if (nfiles == 0 && (kind == VARIABLES_DOMAIN || kind == FUNCTIONS_DOMAIN)) |
c906108c SS |
3546 | { |
3547 | ALL_MSYMBOLS (objfile, msymbol) | |
c5aa993b | 3548 | { |
89295b4d PP |
3549 | QUIT; |
3550 | ||
422d65e7 DE |
3551 | if (msymbol->created_by_gdb) |
3552 | continue; | |
3553 | ||
d50bd42b DE |
3554 | if (MSYMBOL_TYPE (msymbol) == ourtype |
3555 | || MSYMBOL_TYPE (msymbol) == ourtype2 | |
3556 | || MSYMBOL_TYPE (msymbol) == ourtype3 | |
3557 | || MSYMBOL_TYPE (msymbol) == ourtype4) | |
c5aa993b | 3558 | { |
681bf369 JK |
3559 | if (!datum.preg_p |
3560 | || regexec (&datum.preg, SYMBOL_NATURAL_NAME (msymbol), 0, | |
3561 | NULL, 0) == 0) | |
c5aa993b | 3562 | { |
422d65e7 DE |
3563 | /* Note: An important side-effect of these lookup functions |
3564 | is to expand the symbol table if msymbol is found, for the | |
3565 | benefit of the next loop on ALL_PRIMARY_SYMTABS. */ | |
3566 | if (kind == FUNCTIONS_DOMAIN | |
3567 | ? find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol)) == NULL | |
3568 | : (lookup_symbol_in_objfile_from_linkage_name | |
3569 | (objfile, SYMBOL_LINKAGE_NAME (msymbol), VAR_DOMAIN) | |
3570 | == NULL)) | |
3571 | found_misc = 1; | |
c5aa993b JM |
3572 | } |
3573 | } | |
3574 | } | |
c906108c SS |
3575 | } |
3576 | ||
11309657 | 3577 | ALL_PRIMARY_SYMTABS (objfile, s) |
c5aa993b JM |
3578 | { |
3579 | bv = BLOCKVECTOR (s); | |
d50bd42b DE |
3580 | for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++) |
3581 | { | |
3582 | struct symbol_search *prevtail = tail; | |
3583 | int nfound = 0; | |
433759f7 | 3584 | |
d50bd42b DE |
3585 | b = BLOCKVECTOR_BLOCK (bv, i); |
3586 | ALL_BLOCK_SYMBOLS (b, iter, sym) | |
3587 | { | |
3588 | struct symtab *real_symtab = SYMBOL_SYMTAB (sym); | |
3589 | ||
3590 | QUIT; | |
3591 | ||
fbd9ab74 JK |
3592 | /* Check first sole REAL_SYMTAB->FILENAME. It does not need to be |
3593 | a substring of symtab_to_fullname as it may contain "./" etc. */ | |
3594 | if ((file_matches (real_symtab->filename, files, nfiles, 0) | |
3595 | || ((basenames_may_differ | |
3596 | || file_matches (lbasename (real_symtab->filename), | |
3597 | files, nfiles, 1)) | |
3598 | && file_matches (symtab_to_fullname (real_symtab), | |
3599 | files, nfiles, 0))) | |
d50bd42b DE |
3600 | && ((!datum.preg_p |
3601 | || regexec (&datum.preg, SYMBOL_NATURAL_NAME (sym), 0, | |
3602 | NULL, 0) == 0) | |
3603 | && ((kind == VARIABLES_DOMAIN | |
3604 | && SYMBOL_CLASS (sym) != LOC_TYPEDEF | |
3605 | && SYMBOL_CLASS (sym) != LOC_UNRESOLVED | |
3606 | && SYMBOL_CLASS (sym) != LOC_BLOCK | |
3607 | /* LOC_CONST can be used for more than just enums, | |
3608 | e.g., c++ static const members. | |
3609 | We only want to skip enums here. */ | |
3610 | && !(SYMBOL_CLASS (sym) == LOC_CONST | |
3611 | && TYPE_CODE (SYMBOL_TYPE (sym)) | |
3612 | == TYPE_CODE_ENUM)) | |
3613 | || (kind == FUNCTIONS_DOMAIN | |
3614 | && SYMBOL_CLASS (sym) == LOC_BLOCK) | |
3615 | || (kind == TYPES_DOMAIN | |
3616 | && SYMBOL_CLASS (sym) == LOC_TYPEDEF)))) | |
3617 | { | |
3618 | /* match */ | |
3619 | psr = (struct symbol_search *) | |
3620 | xmalloc (sizeof (struct symbol_search)); | |
3621 | psr->block = i; | |
3622 | psr->symtab = real_symtab; | |
3623 | psr->symbol = sym; | |
3624 | psr->msymbol = NULL; | |
3625 | psr->next = NULL; | |
3626 | if (tail == NULL) | |
3627 | sr = psr; | |
3628 | else | |
3629 | tail->next = psr; | |
3630 | tail = psr; | |
3631 | nfound ++; | |
3632 | } | |
3633 | } | |
3634 | if (nfound > 0) | |
3635 | { | |
3636 | if (prevtail == NULL) | |
3637 | { | |
3638 | struct symbol_search dummy; | |
434d2d4f | 3639 | |
d50bd42b DE |
3640 | dummy.next = sr; |
3641 | tail = sort_search_symbols (&dummy, nfound); | |
3642 | sr = dummy.next; | |
434d2d4f | 3643 | |
d50bd42b DE |
3644 | make_cleanup_free_search_symbols (sr); |
3645 | } | |
3646 | else | |
3647 | tail = sort_search_symbols (prevtail, nfound); | |
3648 | } | |
3649 | } | |
c5aa993b | 3650 | } |
c906108c SS |
3651 | |
3652 | /* If there are no eyes, avoid all contact. I mean, if there are | |
3653 | no debug symbols, then print directly from the msymbol_vector. */ | |
3654 | ||
422d65e7 | 3655 | if (found_misc || (nfiles == 0 && kind != FUNCTIONS_DOMAIN)) |
c906108c SS |
3656 | { |
3657 | ALL_MSYMBOLS (objfile, msymbol) | |
c5aa993b | 3658 | { |
89295b4d PP |
3659 | QUIT; |
3660 | ||
422d65e7 DE |
3661 | if (msymbol->created_by_gdb) |
3662 | continue; | |
3663 | ||
d50bd42b DE |
3664 | if (MSYMBOL_TYPE (msymbol) == ourtype |
3665 | || MSYMBOL_TYPE (msymbol) == ourtype2 | |
3666 | || MSYMBOL_TYPE (msymbol) == ourtype3 | |
3667 | || MSYMBOL_TYPE (msymbol) == ourtype4) | |
c5aa993b | 3668 | { |
681bf369 JK |
3669 | if (!datum.preg_p |
3670 | || regexec (&datum.preg, SYMBOL_NATURAL_NAME (msymbol), 0, | |
3671 | NULL, 0) == 0) | |
c5aa993b | 3672 | { |
422d65e7 DE |
3673 | /* For functions we can do a quick check of whether the |
3674 | symbol might be found via find_pc_symtab. */ | |
3675 | if (kind != FUNCTIONS_DOMAIN | |
3676 | || find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol)) == NULL) | |
c5aa993b | 3677 | { |
422d65e7 DE |
3678 | if (lookup_symbol_in_objfile_from_linkage_name |
3679 | (objfile, SYMBOL_LINKAGE_NAME (msymbol), VAR_DOMAIN) | |
3680 | == NULL) | |
c5aa993b JM |
3681 | { |
3682 | /* match */ | |
3e43a32a MS |
3683 | psr = (struct symbol_search *) |
3684 | xmalloc (sizeof (struct symbol_search)); | |
c5aa993b JM |
3685 | psr->block = i; |
3686 | psr->msymbol = msymbol; | |
3687 | psr->symtab = NULL; | |
3688 | psr->symbol = NULL; | |
3689 | psr->next = NULL; | |
3690 | if (tail == NULL) | |
3691 | { | |
3692 | sr = psr; | |
681bf369 | 3693 | make_cleanup_free_search_symbols (sr); |
c5aa993b JM |
3694 | } |
3695 | else | |
3696 | tail->next = psr; | |
3697 | tail = psr; | |
3698 | } | |
3699 | } | |
3700 | } | |
3701 | } | |
3702 | } | |
c906108c SS |
3703 | } |
3704 | ||
681bf369 JK |
3705 | discard_cleanups (retval_chain); |
3706 | do_cleanups (old_chain); | |
c906108c | 3707 | *matches = sr; |
c906108c SS |
3708 | } |
3709 | ||
3710 | /* Helper function for symtab_symbol_info, this function uses | |
3711 | the data returned from search_symbols() to print information | |
c378eb4e MS |
3712 | regarding the match to gdb_stdout. */ |
3713 | ||
c906108c | 3714 | static void |
8903c50d TT |
3715 | print_symbol_info (enum search_domain kind, |
3716 | struct symtab *s, struct symbol *sym, | |
05cba821 | 3717 | int block, const char *last) |
c906108c | 3718 | { |
05cba821 JK |
3719 | const char *s_filename = symtab_to_filename_for_display (s); |
3720 | ||
3721 | if (last == NULL || filename_cmp (last, s_filename) != 0) | |
c906108c SS |
3722 | { |
3723 | fputs_filtered ("\nFile ", gdb_stdout); | |
05cba821 | 3724 | fputs_filtered (s_filename, gdb_stdout); |
c906108c SS |
3725 | fputs_filtered (":\n", gdb_stdout); |
3726 | } | |
3727 | ||
176620f1 | 3728 | if (kind != TYPES_DOMAIN && block == STATIC_BLOCK) |
c906108c | 3729 | printf_filtered ("static "); |
c5aa993b | 3730 | |
c378eb4e | 3731 | /* Typedef that is not a C++ class. */ |
176620f1 EZ |
3732 | if (kind == TYPES_DOMAIN |
3733 | && SYMBOL_DOMAIN (sym) != STRUCT_DOMAIN) | |
a5238fbc | 3734 | typedef_print (SYMBOL_TYPE (sym), sym, gdb_stdout); |
c378eb4e | 3735 | /* variable, func, or typedef-that-is-c++-class. */ |
d50bd42b DE |
3736 | else if (kind < TYPES_DOMAIN |
3737 | || (kind == TYPES_DOMAIN | |
3738 | && SYMBOL_DOMAIN (sym) == STRUCT_DOMAIN)) | |
c906108c SS |
3739 | { |
3740 | type_print (SYMBOL_TYPE (sym), | |
c5aa993b | 3741 | (SYMBOL_CLASS (sym) == LOC_TYPEDEF |
de5ad195 | 3742 | ? "" : SYMBOL_PRINT_NAME (sym)), |
c5aa993b | 3743 | gdb_stdout, 0); |
c906108c SS |
3744 | |
3745 | printf_filtered (";\n"); | |
3746 | } | |
c906108c SS |
3747 | } |
3748 | ||
3749 | /* This help function for symtab_symbol_info() prints information | |
c378eb4e MS |
3750 | for non-debugging symbols to gdb_stdout. */ |
3751 | ||
c906108c | 3752 | static void |
fba45db2 | 3753 | print_msymbol_info (struct minimal_symbol *msymbol) |
c906108c | 3754 | { |
d80b854b | 3755 | struct gdbarch *gdbarch = get_objfile_arch (msymbol_objfile (msymbol)); |
3ac4495a MS |
3756 | char *tmp; |
3757 | ||
d80b854b | 3758 | if (gdbarch_addr_bit (gdbarch) <= 32) |
bb599908 PH |
3759 | tmp = hex_string_custom (SYMBOL_VALUE_ADDRESS (msymbol) |
3760 | & (CORE_ADDR) 0xffffffff, | |
3761 | 8); | |
3ac4495a | 3762 | else |
bb599908 PH |
3763 | tmp = hex_string_custom (SYMBOL_VALUE_ADDRESS (msymbol), |
3764 | 16); | |
3ac4495a | 3765 | printf_filtered ("%s %s\n", |
de5ad195 | 3766 | tmp, SYMBOL_PRINT_NAME (msymbol)); |
c906108c SS |
3767 | } |
3768 | ||
3769 | /* This is the guts of the commands "info functions", "info types", and | |
c378eb4e | 3770 | "info variables". It calls search_symbols to find all matches and then |
c906108c | 3771 | print_[m]symbol_info to print out some useful information about the |
c378eb4e MS |
3772 | matches. */ |
3773 | ||
c906108c | 3774 | static void |
8903c50d | 3775 | symtab_symbol_info (char *regexp, enum search_domain kind, int from_tty) |
c906108c | 3776 | { |
bc043ef3 | 3777 | static const char * const classnames[] = |
e8930875 | 3778 | {"variable", "function", "type"}; |
c906108c SS |
3779 | struct symbol_search *symbols; |
3780 | struct symbol_search *p; | |
3781 | struct cleanup *old_chain; | |
05cba821 | 3782 | const char *last_filename = NULL; |
c906108c SS |
3783 | int first = 1; |
3784 | ||
e8930875 JK |
3785 | gdb_assert (kind <= TYPES_DOMAIN); |
3786 | ||
c378eb4e | 3787 | /* Must make sure that if we're interrupted, symbols gets freed. */ |
c906108c | 3788 | search_symbols (regexp, kind, 0, (char **) NULL, &symbols); |
5bd98722 | 3789 | old_chain = make_cleanup_free_search_symbols (symbols); |
c906108c | 3790 | |
ca242aad YQ |
3791 | if (regexp != NULL) |
3792 | printf_filtered (_("All %ss matching regular expression \"%s\":\n"), | |
3793 | classnames[kind], regexp); | |
3794 | else | |
3795 | printf_filtered (_("All defined %ss:\n"), classnames[kind]); | |
c906108c SS |
3796 | |
3797 | for (p = symbols; p != NULL; p = p->next) | |
3798 | { | |
3799 | QUIT; | |
3800 | ||
3801 | if (p->msymbol != NULL) | |
c5aa993b JM |
3802 | { |
3803 | if (first) | |
3804 | { | |
ca242aad | 3805 | printf_filtered (_("\nNon-debugging symbols:\n")); |
c5aa993b JM |
3806 | first = 0; |
3807 | } | |
3808 | print_msymbol_info (p->msymbol); | |
3809 | } | |
c906108c | 3810 | else |
c5aa993b JM |
3811 | { |
3812 | print_symbol_info (kind, | |
3813 | p->symtab, | |
3814 | p->symbol, | |
3815 | p->block, | |
3816 | last_filename); | |
05cba821 | 3817 | last_filename = symtab_to_filename_for_display (p->symtab); |
c5aa993b | 3818 | } |
c906108c SS |
3819 | } |
3820 | ||
3821 | do_cleanups (old_chain); | |
3822 | } | |
3823 | ||
3824 | static void | |
fba45db2 | 3825 | variables_info (char *regexp, int from_tty) |
c906108c | 3826 | { |
176620f1 | 3827 | symtab_symbol_info (regexp, VARIABLES_DOMAIN, from_tty); |
c906108c SS |
3828 | } |
3829 | ||
3830 | static void | |
fba45db2 | 3831 | functions_info (char *regexp, int from_tty) |
c906108c | 3832 | { |
176620f1 | 3833 | symtab_symbol_info (regexp, FUNCTIONS_DOMAIN, from_tty); |
c906108c SS |
3834 | } |
3835 | ||
357e46e7 | 3836 | |
c906108c | 3837 | static void |
fba45db2 | 3838 | types_info (char *regexp, int from_tty) |
c906108c | 3839 | { |
176620f1 | 3840 | symtab_symbol_info (regexp, TYPES_DOMAIN, from_tty); |
c906108c SS |
3841 | } |
3842 | ||
c378eb4e | 3843 | /* Breakpoint all functions matching regular expression. */ |
8926118c | 3844 | |
8b93c638 | 3845 | void |
fba45db2 | 3846 | rbreak_command_wrapper (char *regexp, int from_tty) |
8b93c638 JM |
3847 | { |
3848 | rbreak_command (regexp, from_tty); | |
3849 | } | |
8926118c | 3850 | |
95a42b64 TT |
3851 | /* A cleanup function that calls end_rbreak_breakpoints. */ |
3852 | ||
3853 | static void | |
3854 | do_end_rbreak_breakpoints (void *ignore) | |
3855 | { | |
3856 | end_rbreak_breakpoints (); | |
3857 | } | |
3858 | ||
c906108c | 3859 | static void |
fba45db2 | 3860 | rbreak_command (char *regexp, int from_tty) |
c906108c SS |
3861 | { |
3862 | struct symbol_search *ss; | |
3863 | struct symbol_search *p; | |
3864 | struct cleanup *old_chain; | |
95a42b64 TT |
3865 | char *string = NULL; |
3866 | int len = 0; | |
9c1e305a | 3867 | char **files = NULL, *file_name; |
8bd10a10 | 3868 | int nfiles = 0; |
c906108c | 3869 | |
8bd10a10 CM |
3870 | if (regexp) |
3871 | { | |
3872 | char *colon = strchr (regexp, ':'); | |
433759f7 | 3873 | |
8bd10a10 CM |
3874 | if (colon && *(colon + 1) != ':') |
3875 | { | |
3876 | int colon_index; | |
8bd10a10 CM |
3877 | |
3878 | colon_index = colon - regexp; | |
3879 | file_name = alloca (colon_index + 1); | |
3880 | memcpy (file_name, regexp, colon_index); | |
3881 | file_name[colon_index--] = 0; | |
3882 | while (isspace (file_name[colon_index])) | |
3883 | file_name[colon_index--] = 0; | |
3884 | files = &file_name; | |
3885 | nfiles = 1; | |
529480d0 | 3886 | regexp = skip_spaces (colon + 1); |
8bd10a10 CM |
3887 | } |
3888 | } | |
3889 | ||
3890 | search_symbols (regexp, FUNCTIONS_DOMAIN, nfiles, files, &ss); | |
5bd98722 | 3891 | old_chain = make_cleanup_free_search_symbols (ss); |
95a42b64 | 3892 | make_cleanup (free_current_contents, &string); |
c906108c | 3893 | |
95a42b64 TT |
3894 | start_rbreak_breakpoints (); |
3895 | make_cleanup (do_end_rbreak_breakpoints, NULL); | |
c906108c SS |
3896 | for (p = ss; p != NULL; p = p->next) |
3897 | { | |
3898 | if (p->msymbol == NULL) | |
c5aa993b | 3899 | { |
05cba821 JK |
3900 | const char *fullname = symtab_to_fullname (p->symtab); |
3901 | ||
3902 | int newlen = (strlen (fullname) | |
95a42b64 TT |
3903 | + strlen (SYMBOL_LINKAGE_NAME (p->symbol)) |
3904 | + 4); | |
433759f7 | 3905 | |
95a42b64 TT |
3906 | if (newlen > len) |
3907 | { | |
3908 | string = xrealloc (string, newlen); | |
3909 | len = newlen; | |
3910 | } | |
05cba821 | 3911 | strcpy (string, fullname); |
c5aa993b | 3912 | strcat (string, ":'"); |
2335f48e | 3913 | strcat (string, SYMBOL_LINKAGE_NAME (p->symbol)); |
c5aa993b JM |
3914 | strcat (string, "'"); |
3915 | break_command (string, from_tty); | |
176620f1 | 3916 | print_symbol_info (FUNCTIONS_DOMAIN, |
c5aa993b JM |
3917 | p->symtab, |
3918 | p->symbol, | |
3919 | p->block, | |
05cba821 | 3920 | symtab_to_filename_for_display (p->symtab)); |
c5aa993b | 3921 | } |
c906108c | 3922 | else |
c5aa993b | 3923 | { |
433759f7 MS |
3924 | int newlen = (strlen (SYMBOL_LINKAGE_NAME (p->msymbol)) + 3); |
3925 | ||
95a42b64 TT |
3926 | if (newlen > len) |
3927 | { | |
3928 | string = xrealloc (string, newlen); | |
3929 | len = newlen; | |
3930 | } | |
6214f497 DJ |
3931 | strcpy (string, "'"); |
3932 | strcat (string, SYMBOL_LINKAGE_NAME (p->msymbol)); | |
3933 | strcat (string, "'"); | |
3934 | ||
3935 | break_command (string, from_tty); | |
c5aa993b | 3936 | printf_filtered ("<function, no debug info> %s;\n", |
de5ad195 | 3937 | SYMBOL_PRINT_NAME (p->msymbol)); |
c5aa993b | 3938 | } |
c906108c SS |
3939 | } |
3940 | ||
3941 | do_cleanups (old_chain); | |
3942 | } | |
c906108c | 3943 | \f |
c5aa993b | 3944 | |
1976171a JK |
3945 | /* Evaluate if NAME matches SYM_TEXT and SYM_TEXT_LEN. |
3946 | ||
3947 | Either sym_text[sym_text_len] != '(' and then we search for any | |
3948 | symbol starting with SYM_TEXT text. | |
3949 | ||
3950 | Otherwise sym_text[sym_text_len] == '(' and then we require symbol name to | |
3951 | be terminated at that point. Partial symbol tables do not have parameters | |
3952 | information. */ | |
3953 | ||
3954 | static int | |
3955 | compare_symbol_name (const char *name, const char *sym_text, int sym_text_len) | |
3956 | { | |
3957 | int (*ncmp) (const char *, const char *, size_t); | |
3958 | ||
3959 | ncmp = (case_sensitivity == case_sensitive_on ? strncmp : strncasecmp); | |
3960 | ||
3961 | if (ncmp (name, sym_text, sym_text_len) != 0) | |
3962 | return 0; | |
3963 | ||
3964 | if (sym_text[sym_text_len] == '(') | |
3965 | { | |
3966 | /* User searches for `name(someth...'. Require NAME to be terminated. | |
3967 | Normally psymtabs and gdbindex have no parameter types so '\0' will be | |
3968 | present but accept even parameters presence. In this case this | |
3969 | function is in fact strcmp_iw but whitespace skipping is not supported | |
3970 | for tab completion. */ | |
3971 | ||
3972 | if (name[sym_text_len] != '\0' && name[sym_text_len] != '(') | |
3973 | return 0; | |
3974 | } | |
3975 | ||
3976 | return 1; | |
3977 | } | |
3978 | ||
821296b7 SA |
3979 | /* Free any memory associated with a completion list. */ |
3980 | ||
3981 | static void | |
49c4e619 | 3982 | free_completion_list (VEC (char_ptr) **list_ptr) |
821296b7 | 3983 | { |
49c4e619 TT |
3984 | int i; |
3985 | char *p; | |
821296b7 | 3986 | |
49c4e619 TT |
3987 | for (i = 0; VEC_iterate (char_ptr, *list_ptr, i, p); ++i) |
3988 | xfree (p); | |
3989 | VEC_free (char_ptr, *list_ptr); | |
821296b7 SA |
3990 | } |
3991 | ||
3992 | /* Callback for make_cleanup. */ | |
3993 | ||
3994 | static void | |
3995 | do_free_completion_list (void *list) | |
3996 | { | |
3997 | free_completion_list (list); | |
3998 | } | |
3999 | ||
c906108c SS |
4000 | /* Helper routine for make_symbol_completion_list. */ |
4001 | ||
49c4e619 | 4002 | static VEC (char_ptr) *return_val; |
c906108c SS |
4003 | |
4004 | #define COMPLETION_LIST_ADD_SYMBOL(symbol, sym_text, len, text, word) \ | |
c906108c | 4005 | completion_list_add_name \ |
2335f48e | 4006 | (SYMBOL_NATURAL_NAME (symbol), (sym_text), (len), (text), (word)) |
c906108c SS |
4007 | |
4008 | /* Test to see if the symbol specified by SYMNAME (which is already | |
c5aa993b | 4009 | demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN |
c378eb4e | 4010 | characters. If so, add it to the current completion list. */ |
c906108c SS |
4011 | |
4012 | static void | |
0d5cff50 DE |
4013 | completion_list_add_name (const char *symname, |
4014 | const char *sym_text, int sym_text_len, | |
4015 | const char *text, const char *word) | |
c906108c | 4016 | { |
c378eb4e | 4017 | /* Clip symbols that cannot match. */ |
1976171a JK |
4018 | if (!compare_symbol_name (symname, sym_text, sym_text_len)) |
4019 | return; | |
c906108c | 4020 | |
c906108c | 4021 | /* We have a match for a completion, so add SYMNAME to the current list |
c378eb4e | 4022 | of matches. Note that the name is moved to freshly malloc'd space. */ |
c906108c SS |
4023 | |
4024 | { | |
4025 | char *new; | |
433759f7 | 4026 | |
c906108c SS |
4027 | if (word == sym_text) |
4028 | { | |
4029 | new = xmalloc (strlen (symname) + 5); | |
4030 | strcpy (new, symname); | |
4031 | } | |
4032 | else if (word > sym_text) | |
4033 | { | |
4034 | /* Return some portion of symname. */ | |
4035 | new = xmalloc (strlen (symname) + 5); | |
4036 | strcpy (new, symname + (word - sym_text)); | |
4037 | } | |
4038 | else | |
4039 | { | |
4040 | /* Return some of SYM_TEXT plus symname. */ | |
4041 | new = xmalloc (strlen (symname) + (sym_text - word) + 5); | |
4042 | strncpy (new, word, sym_text - word); | |
4043 | new[sym_text - word] = '\0'; | |
4044 | strcat (new, symname); | |
4045 | } | |
4046 | ||
49c4e619 | 4047 | VEC_safe_push (char_ptr, return_val, new); |
c906108c SS |
4048 | } |
4049 | } | |
4050 | ||
69636828 AF |
4051 | /* ObjC: In case we are completing on a selector, look as the msymbol |
4052 | again and feed all the selectors into the mill. */ | |
4053 | ||
4054 | static void | |
0d5cff50 DE |
4055 | completion_list_objc_symbol (struct minimal_symbol *msymbol, |
4056 | const char *sym_text, int sym_text_len, | |
4057 | const char *text, const char *word) | |
69636828 AF |
4058 | { |
4059 | static char *tmp = NULL; | |
4060 | static unsigned int tmplen = 0; | |
9af17804 | 4061 | |
0d5cff50 | 4062 | const char *method, *category, *selector; |
69636828 | 4063 | char *tmp2 = NULL; |
9af17804 | 4064 | |
69636828 AF |
4065 | method = SYMBOL_NATURAL_NAME (msymbol); |
4066 | ||
4067 | /* Is it a method? */ | |
4068 | if ((method[0] != '-') && (method[0] != '+')) | |
4069 | return; | |
4070 | ||
4071 | if (sym_text[0] == '[') | |
4072 | /* Complete on shortened method method. */ | |
4073 | completion_list_add_name (method + 1, sym_text, sym_text_len, text, word); | |
9af17804 | 4074 | |
69636828 AF |
4075 | while ((strlen (method) + 1) >= tmplen) |
4076 | { | |
4077 | if (tmplen == 0) | |
4078 | tmplen = 1024; | |
4079 | else | |
4080 | tmplen *= 2; | |
4081 | tmp = xrealloc (tmp, tmplen); | |
4082 | } | |
4083 | selector = strchr (method, ' '); | |
4084 | if (selector != NULL) | |
4085 | selector++; | |
9af17804 | 4086 | |
69636828 | 4087 | category = strchr (method, '('); |
9af17804 | 4088 | |
69636828 AF |
4089 | if ((category != NULL) && (selector != NULL)) |
4090 | { | |
4091 | memcpy (tmp, method, (category - method)); | |
4092 | tmp[category - method] = ' '; | |
4093 | memcpy (tmp + (category - method) + 1, selector, strlen (selector) + 1); | |
4094 | completion_list_add_name (tmp, sym_text, sym_text_len, text, word); | |
4095 | if (sym_text[0] == '[') | |
4096 | completion_list_add_name (tmp + 1, sym_text, sym_text_len, text, word); | |
4097 | } | |
9af17804 | 4098 | |
69636828 AF |
4099 | if (selector != NULL) |
4100 | { | |
4101 | /* Complete on selector only. */ | |
4102 | strcpy (tmp, selector); | |
4103 | tmp2 = strchr (tmp, ']'); | |
4104 | if (tmp2 != NULL) | |
4105 | *tmp2 = '\0'; | |
9af17804 | 4106 | |
69636828 AF |
4107 | completion_list_add_name (tmp, sym_text, sym_text_len, text, word); |
4108 | } | |
4109 | } | |
4110 | ||
4111 | /* Break the non-quoted text based on the characters which are in | |
c378eb4e | 4112 | symbols. FIXME: This should probably be language-specific. */ |
69636828 | 4113 | |
6f937416 PA |
4114 | static const char * |
4115 | language_search_unquoted_string (const char *text, const char *p) | |
69636828 AF |
4116 | { |
4117 | for (; p > text; --p) | |
4118 | { | |
4119 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0') | |
4120 | continue; | |
4121 | else | |
4122 | { | |
4123 | if ((current_language->la_language == language_objc)) | |
4124 | { | |
c378eb4e | 4125 | if (p[-1] == ':') /* Might be part of a method name. */ |
69636828 AF |
4126 | continue; |
4127 | else if (p[-1] == '[' && (p[-2] == '-' || p[-2] == '+')) | |
c378eb4e | 4128 | p -= 2; /* Beginning of a method name. */ |
69636828 | 4129 | else if (p[-1] == ' ' || p[-1] == '(' || p[-1] == ')') |
c378eb4e | 4130 | { /* Might be part of a method name. */ |
6f937416 | 4131 | const char *t = p; |
69636828 AF |
4132 | |
4133 | /* Seeing a ' ' or a '(' is not conclusive evidence | |
4134 | that we are in the middle of a method name. However, | |
4135 | finding "-[" or "+[" should be pretty un-ambiguous. | |
4136 | Unfortunately we have to find it now to decide. */ | |
4137 | ||
4138 | while (t > text) | |
4139 | if (isalnum (t[-1]) || t[-1] == '_' || | |
4140 | t[-1] == ' ' || t[-1] == ':' || | |
4141 | t[-1] == '(' || t[-1] == ')') | |
4142 | --t; | |
4143 | else | |
4144 | break; | |
4145 | ||
4146 | if (t[-1] == '[' && (t[-2] == '-' || t[-2] == '+')) | |
c378eb4e MS |
4147 | p = t - 2; /* Method name detected. */ |
4148 | /* Else we leave with p unchanged. */ | |
69636828 AF |
4149 | } |
4150 | } | |
4151 | break; | |
4152 | } | |
4153 | } | |
4154 | return p; | |
4155 | } | |
4156 | ||
edb3359d | 4157 | static void |
6f937416 PA |
4158 | completion_list_add_fields (struct symbol *sym, const char *sym_text, |
4159 | int sym_text_len, const char *text, | |
4160 | const char *word) | |
edb3359d DJ |
4161 | { |
4162 | if (SYMBOL_CLASS (sym) == LOC_TYPEDEF) | |
4163 | { | |
4164 | struct type *t = SYMBOL_TYPE (sym); | |
4165 | enum type_code c = TYPE_CODE (t); | |
4166 | int j; | |
4167 | ||
4168 | if (c == TYPE_CODE_UNION || c == TYPE_CODE_STRUCT) | |
4169 | for (j = TYPE_N_BASECLASSES (t); j < TYPE_NFIELDS (t); j++) | |
4170 | if (TYPE_FIELD_NAME (t, j)) | |
4171 | completion_list_add_name (TYPE_FIELD_NAME (t, j), | |
4172 | sym_text, sym_text_len, text, word); | |
4173 | } | |
4174 | } | |
4175 | ||
ccefe4c4 | 4176 | /* Type of the user_data argument passed to add_macro_name or |
7b08b9eb | 4177 | expand_partial_symbol_name. The contents are simply whatever is |
ccefe4c4 TT |
4178 | needed by completion_list_add_name. */ |
4179 | struct add_name_data | |
9a044a89 | 4180 | { |
6f937416 | 4181 | const char *sym_text; |
9a044a89 | 4182 | int sym_text_len; |
6f937416 PA |
4183 | const char *text; |
4184 | const char *word; | |
9a044a89 TT |
4185 | }; |
4186 | ||
4187 | /* A callback used with macro_for_each and macro_for_each_in_scope. | |
4188 | This adds a macro's name to the current completion list. */ | |
eca864fe | 4189 | |
9a044a89 TT |
4190 | static void |
4191 | add_macro_name (const char *name, const struct macro_definition *ignore, | |
9b158ba0 | 4192 | struct macro_source_file *ignore2, int ignore3, |
9a044a89 TT |
4193 | void *user_data) |
4194 | { | |
ccefe4c4 | 4195 | struct add_name_data *datum = (struct add_name_data *) user_data; |
433759f7 | 4196 | |
ccefe4c4 TT |
4197 | completion_list_add_name ((char *) name, |
4198 | datum->sym_text, datum->sym_text_len, | |
4199 | datum->text, datum->word); | |
4200 | } | |
4201 | ||
7b08b9eb | 4202 | /* A callback for expand_partial_symbol_names. */ |
eca864fe | 4203 | |
7b08b9eb | 4204 | static int |
e078317b | 4205 | expand_partial_symbol_name (const char *name, void *user_data) |
ccefe4c4 TT |
4206 | { |
4207 | struct add_name_data *datum = (struct add_name_data *) user_data; | |
165195f4 | 4208 | |
1976171a | 4209 | return compare_symbol_name (name, datum->sym_text, datum->sym_text_len); |
9a044a89 TT |
4210 | } |
4211 | ||
49c4e619 | 4212 | VEC (char_ptr) * |
6f937416 PA |
4213 | default_make_symbol_completion_list_break_on (const char *text, |
4214 | const char *word, | |
2f68a895 TT |
4215 | const char *break_on, |
4216 | enum type_code code) | |
c906108c | 4217 | { |
41d27058 JB |
4218 | /* Problem: All of the symbols have to be copied because readline |
4219 | frees them. I'm not going to worry about this; hopefully there | |
4220 | won't be that many. */ | |
4221 | ||
de4f826b DC |
4222 | struct symbol *sym; |
4223 | struct symtab *s; | |
de4f826b DC |
4224 | struct minimal_symbol *msymbol; |
4225 | struct objfile *objfile; | |
edb3359d DJ |
4226 | struct block *b; |
4227 | const struct block *surrounding_static_block, *surrounding_global_block; | |
8157b174 | 4228 | struct block_iterator iter; |
c906108c | 4229 | /* The symbol we are completing on. Points in same buffer as text. */ |
6f937416 | 4230 | const char *sym_text; |
c906108c SS |
4231 | /* Length of sym_text. */ |
4232 | int sym_text_len; | |
ccefe4c4 | 4233 | struct add_name_data datum; |
821296b7 | 4234 | struct cleanup *back_to; |
c906108c | 4235 | |
41d27058 | 4236 | /* Now look for the symbol we are supposed to complete on. */ |
c906108c | 4237 | { |
6f937416 | 4238 | const char *p; |
c906108c | 4239 | char quote_found; |
6f937416 | 4240 | const char *quote_pos = NULL; |
c906108c SS |
4241 | |
4242 | /* First see if this is a quoted string. */ | |
4243 | quote_found = '\0'; | |
4244 | for (p = text; *p != '\0'; ++p) | |
4245 | { | |
4246 | if (quote_found != '\0') | |
4247 | { | |
4248 | if (*p == quote_found) | |
4249 | /* Found close quote. */ | |
4250 | quote_found = '\0'; | |
4251 | else if (*p == '\\' && p[1] == quote_found) | |
4252 | /* A backslash followed by the quote character | |
c5aa993b | 4253 | doesn't end the string. */ |
c906108c SS |
4254 | ++p; |
4255 | } | |
4256 | else if (*p == '\'' || *p == '"') | |
4257 | { | |
4258 | quote_found = *p; | |
4259 | quote_pos = p; | |
4260 | } | |
4261 | } | |
4262 | if (quote_found == '\'') | |
4263 | /* A string within single quotes can be a symbol, so complete on it. */ | |
4264 | sym_text = quote_pos + 1; | |
4265 | else if (quote_found == '"') | |
4266 | /* A double-quoted string is never a symbol, nor does it make sense | |
c5aa993b | 4267 | to complete it any other way. */ |
c94fdfd0 | 4268 | { |
49c4e619 | 4269 | return NULL; |
c94fdfd0 | 4270 | } |
c906108c SS |
4271 | else |
4272 | { | |
4273 | /* It is not a quoted string. Break it based on the characters | |
4274 | which are in symbols. */ | |
4275 | while (p > text) | |
4276 | { | |
95699ff0 | 4277 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0' |
f55ee35c | 4278 | || p[-1] == ':' || strchr (break_on, p[-1]) != NULL) |
c906108c SS |
4279 | --p; |
4280 | else | |
4281 | break; | |
4282 | } | |
4283 | sym_text = p; | |
4284 | } | |
4285 | } | |
4286 | ||
4287 | sym_text_len = strlen (sym_text); | |
4288 | ||
1976171a JK |
4289 | /* Prepare SYM_TEXT_LEN for compare_symbol_name. */ |
4290 | ||
4291 | if (current_language->la_language == language_cplus | |
4292 | || current_language->la_language == language_java | |
4293 | || current_language->la_language == language_fortran) | |
4294 | { | |
4295 | /* These languages may have parameters entered by user but they are never | |
4296 | present in the partial symbol tables. */ | |
4297 | ||
4298 | const char *cs = memchr (sym_text, '(', sym_text_len); | |
4299 | ||
4300 | if (cs) | |
4301 | sym_text_len = cs - sym_text; | |
4302 | } | |
4303 | gdb_assert (sym_text[sym_text_len] == '\0' || sym_text[sym_text_len] == '('); | |
4304 | ||
49c4e619 | 4305 | return_val = NULL; |
821296b7 | 4306 | back_to = make_cleanup (do_free_completion_list, &return_val); |
c906108c | 4307 | |
ccefe4c4 TT |
4308 | datum.sym_text = sym_text; |
4309 | datum.sym_text_len = sym_text_len; | |
4310 | datum.text = text; | |
4311 | datum.word = word; | |
4312 | ||
c906108c | 4313 | /* Look through the partial symtabs for all symbols which begin |
7b08b9eb JK |
4314 | by matching SYM_TEXT. Expand all CUs that you find to the list. |
4315 | The real names will get added by COMPLETION_LIST_ADD_SYMBOL below. */ | |
4316 | expand_partial_symbol_names (expand_partial_symbol_name, &datum); | |
c906108c SS |
4317 | |
4318 | /* At this point scan through the misc symbol vectors and add each | |
4319 | symbol you find to the list. Eventually we want to ignore | |
4320 | anything that isn't a text symbol (everything else will be | |
4321 | handled by the psymtab code above). */ | |
4322 | ||
2f68a895 TT |
4323 | if (code == TYPE_CODE_UNDEF) |
4324 | { | |
4325 | ALL_MSYMBOLS (objfile, msymbol) | |
4326 | { | |
4327 | QUIT; | |
4328 | COMPLETION_LIST_ADD_SYMBOL (msymbol, sym_text, sym_text_len, text, | |
4329 | word); | |
9af17804 | 4330 | |
2f68a895 TT |
4331 | completion_list_objc_symbol (msymbol, sym_text, sym_text_len, text, |
4332 | word); | |
4333 | } | |
4334 | } | |
c906108c SS |
4335 | |
4336 | /* Search upwards from currently selected frame (so that we can | |
edb3359d DJ |
4337 | complete on local vars). Also catch fields of types defined in |
4338 | this places which match our text string. Only complete on types | |
c378eb4e | 4339 | visible from current context. */ |
edb3359d DJ |
4340 | |
4341 | b = get_selected_block (0); | |
4342 | surrounding_static_block = block_static_block (b); | |
4343 | surrounding_global_block = block_global_block (b); | |
4344 | if (surrounding_static_block != NULL) | |
4345 | while (b != surrounding_static_block) | |
4346 | { | |
4347 | QUIT; | |
c906108c | 4348 | |
edb3359d DJ |
4349 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
4350 | { | |
2f68a895 TT |
4351 | if (code == TYPE_CODE_UNDEF) |
4352 | { | |
4353 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, | |
4354 | word); | |
4355 | completion_list_add_fields (sym, sym_text, sym_text_len, text, | |
4356 | word); | |
4357 | } | |
4358 | else if (SYMBOL_DOMAIN (sym) == STRUCT_DOMAIN | |
4359 | && TYPE_CODE (SYMBOL_TYPE (sym)) == code) | |
4360 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, | |
4361 | word); | |
edb3359d | 4362 | } |
c5aa993b | 4363 | |
edb3359d DJ |
4364 | /* Stop when we encounter an enclosing function. Do not stop for |
4365 | non-inlined functions - the locals of the enclosing function | |
4366 | are in scope for a nested function. */ | |
4367 | if (BLOCK_FUNCTION (b) != NULL && block_inlined_p (b)) | |
4368 | break; | |
4369 | b = BLOCK_SUPERBLOCK (b); | |
4370 | } | |
c906108c | 4371 | |
edb3359d | 4372 | /* Add fields from the file's types; symbols will be added below. */ |
c906108c | 4373 | |
2f68a895 TT |
4374 | if (code == TYPE_CODE_UNDEF) |
4375 | { | |
4376 | if (surrounding_static_block != NULL) | |
4377 | ALL_BLOCK_SYMBOLS (surrounding_static_block, iter, sym) | |
4378 | completion_list_add_fields (sym, sym_text, sym_text_len, text, word); | |
edb3359d | 4379 | |
2f68a895 TT |
4380 | if (surrounding_global_block != NULL) |
4381 | ALL_BLOCK_SYMBOLS (surrounding_global_block, iter, sym) | |
4382 | completion_list_add_fields (sym, sym_text, sym_text_len, text, word); | |
4383 | } | |
c906108c SS |
4384 | |
4385 | /* Go through the symtabs and check the externs and statics for | |
4386 | symbols which match. */ | |
4387 | ||
11309657 | 4388 | ALL_PRIMARY_SYMTABS (objfile, s) |
c5aa993b JM |
4389 | { |
4390 | QUIT; | |
4391 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK); | |
de4f826b | 4392 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c5aa993b | 4393 | { |
2f68a895 TT |
4394 | if (code == TYPE_CODE_UNDEF |
4395 | || (SYMBOL_DOMAIN (sym) == STRUCT_DOMAIN | |
4396 | && TYPE_CODE (SYMBOL_TYPE (sym)) == code)) | |
4397 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); | |
c5aa993b JM |
4398 | } |
4399 | } | |
c906108c | 4400 | |
11309657 | 4401 | ALL_PRIMARY_SYMTABS (objfile, s) |
c5aa993b JM |
4402 | { |
4403 | QUIT; | |
4404 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK); | |
de4f826b | 4405 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c5aa993b | 4406 | { |
2f68a895 TT |
4407 | if (code == TYPE_CODE_UNDEF |
4408 | || (SYMBOL_DOMAIN (sym) == STRUCT_DOMAIN | |
4409 | && TYPE_CODE (SYMBOL_TYPE (sym)) == code)) | |
4410 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); | |
c5aa993b JM |
4411 | } |
4412 | } | |
c906108c | 4413 | |
2f68a895 TT |
4414 | /* Skip macros if we are completing a struct tag -- arguable but |
4415 | usually what is expected. */ | |
4416 | if (current_language->la_macro_expansion == macro_expansion_c | |
4417 | && code == TYPE_CODE_UNDEF) | |
9a044a89 TT |
4418 | { |
4419 | struct macro_scope *scope; | |
9a044a89 TT |
4420 | |
4421 | /* Add any macros visible in the default scope. Note that this | |
4422 | may yield the occasional wrong result, because an expression | |
4423 | might be evaluated in a scope other than the default. For | |
4424 | example, if the user types "break file:line if <TAB>", the | |
4425 | resulting expression will be evaluated at "file:line" -- but | |
4426 | at there does not seem to be a way to detect this at | |
4427 | completion time. */ | |
4428 | scope = default_macro_scope (); | |
4429 | if (scope) | |
4430 | { | |
4431 | macro_for_each_in_scope (scope->file, scope->line, | |
4432 | add_macro_name, &datum); | |
4433 | xfree (scope); | |
4434 | } | |
4435 | ||
4436 | /* User-defined macros are always visible. */ | |
4437 | macro_for_each (macro_user_macros, add_macro_name, &datum); | |
4438 | } | |
4439 | ||
821296b7 | 4440 | discard_cleanups (back_to); |
c906108c SS |
4441 | return (return_val); |
4442 | } | |
4443 | ||
49c4e619 | 4444 | VEC (char_ptr) * |
6f937416 | 4445 | default_make_symbol_completion_list (const char *text, const char *word, |
2f68a895 | 4446 | enum type_code code) |
f55ee35c | 4447 | { |
2f68a895 | 4448 | return default_make_symbol_completion_list_break_on (text, word, "", code); |
f55ee35c JK |
4449 | } |
4450 | ||
49c4e619 TT |
4451 | /* Return a vector of all symbols (regardless of class) which begin by |
4452 | matching TEXT. If the answer is no symbols, then the return value | |
4453 | is NULL. */ | |
41d27058 | 4454 | |
49c4e619 | 4455 | VEC (char_ptr) * |
6f937416 | 4456 | make_symbol_completion_list (const char *text, const char *word) |
41d27058 | 4457 | { |
2f68a895 TT |
4458 | return current_language->la_make_symbol_completion_list (text, word, |
4459 | TYPE_CODE_UNDEF); | |
4460 | } | |
4461 | ||
4462 | /* Like make_symbol_completion_list, but only return STRUCT_DOMAIN | |
4463 | symbols whose type code is CODE. */ | |
4464 | ||
4465 | VEC (char_ptr) * | |
6f937416 PA |
4466 | make_symbol_completion_type (const char *text, const char *word, |
4467 | enum type_code code) | |
2f68a895 TT |
4468 | { |
4469 | gdb_assert (code == TYPE_CODE_UNION | |
4470 | || code == TYPE_CODE_STRUCT | |
4471 | || code == TYPE_CODE_CLASS | |
4472 | || code == TYPE_CODE_ENUM); | |
4473 | return current_language->la_make_symbol_completion_list (text, word, code); | |
41d27058 JB |
4474 | } |
4475 | ||
d8906c6f TJB |
4476 | /* Like make_symbol_completion_list, but suitable for use as a |
4477 | completion function. */ | |
4478 | ||
49c4e619 | 4479 | VEC (char_ptr) * |
d8906c6f | 4480 | make_symbol_completion_list_fn (struct cmd_list_element *ignore, |
6f937416 | 4481 | const char *text, const char *word) |
d8906c6f TJB |
4482 | { |
4483 | return make_symbol_completion_list (text, word); | |
4484 | } | |
4485 | ||
c94fdfd0 EZ |
4486 | /* Like make_symbol_completion_list, but returns a list of symbols |
4487 | defined in a source file FILE. */ | |
4488 | ||
49c4e619 | 4489 | VEC (char_ptr) * |
6f937416 PA |
4490 | make_file_symbol_completion_list (const char *text, const char *word, |
4491 | const char *srcfile) | |
c94fdfd0 | 4492 | { |
52f0bd74 AC |
4493 | struct symbol *sym; |
4494 | struct symtab *s; | |
4495 | struct block *b; | |
8157b174 | 4496 | struct block_iterator iter; |
c94fdfd0 | 4497 | /* The symbol we are completing on. Points in same buffer as text. */ |
6f937416 | 4498 | const char *sym_text; |
c94fdfd0 EZ |
4499 | /* Length of sym_text. */ |
4500 | int sym_text_len; | |
4501 | ||
4502 | /* Now look for the symbol we are supposed to complete on. | |
4503 | FIXME: This should be language-specific. */ | |
4504 | { | |
6f937416 | 4505 | const char *p; |
c94fdfd0 | 4506 | char quote_found; |
6f937416 | 4507 | const char *quote_pos = NULL; |
c94fdfd0 EZ |
4508 | |
4509 | /* First see if this is a quoted string. */ | |
4510 | quote_found = '\0'; | |
4511 | for (p = text; *p != '\0'; ++p) | |
4512 | { | |
4513 | if (quote_found != '\0') | |
4514 | { | |
4515 | if (*p == quote_found) | |
4516 | /* Found close quote. */ | |
4517 | quote_found = '\0'; | |
4518 | else if (*p == '\\' && p[1] == quote_found) | |
4519 | /* A backslash followed by the quote character | |
4520 | doesn't end the string. */ | |
4521 | ++p; | |
4522 | } | |
4523 | else if (*p == '\'' || *p == '"') | |
4524 | { | |
4525 | quote_found = *p; | |
4526 | quote_pos = p; | |
4527 | } | |
4528 | } | |
4529 | if (quote_found == '\'') | |
4530 | /* A string within single quotes can be a symbol, so complete on it. */ | |
4531 | sym_text = quote_pos + 1; | |
4532 | else if (quote_found == '"') | |
4533 | /* A double-quoted string is never a symbol, nor does it make sense | |
4534 | to complete it any other way. */ | |
4535 | { | |
49c4e619 | 4536 | return NULL; |
c94fdfd0 EZ |
4537 | } |
4538 | else | |
4539 | { | |
69636828 AF |
4540 | /* Not a quoted string. */ |
4541 | sym_text = language_search_unquoted_string (text, p); | |
c94fdfd0 EZ |
4542 | } |
4543 | } | |
4544 | ||
4545 | sym_text_len = strlen (sym_text); | |
4546 | ||
49c4e619 | 4547 | return_val = NULL; |
c94fdfd0 EZ |
4548 | |
4549 | /* Find the symtab for SRCFILE (this loads it if it was not yet read | |
4550 | in). */ | |
4551 | s = lookup_symtab (srcfile); | |
4552 | if (s == NULL) | |
4553 | { | |
4554 | /* Maybe they typed the file with leading directories, while the | |
4555 | symbol tables record only its basename. */ | |
31889e00 | 4556 | const char *tail = lbasename (srcfile); |
c94fdfd0 EZ |
4557 | |
4558 | if (tail > srcfile) | |
4559 | s = lookup_symtab (tail); | |
4560 | } | |
4561 | ||
4562 | /* If we have no symtab for that file, return an empty list. */ | |
4563 | if (s == NULL) | |
4564 | return (return_val); | |
4565 | ||
4566 | /* Go through this symtab and check the externs and statics for | |
4567 | symbols which match. */ | |
4568 | ||
4569 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK); | |
de4f826b | 4570 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c94fdfd0 | 4571 | { |
c94fdfd0 EZ |
4572 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
4573 | } | |
4574 | ||
4575 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK); | |
de4f826b | 4576 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c94fdfd0 | 4577 | { |
c94fdfd0 EZ |
4578 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
4579 | } | |
4580 | ||
4581 | return (return_val); | |
4582 | } | |
4583 | ||
4584 | /* A helper function for make_source_files_completion_list. It adds | |
4585 | another file name to a list of possible completions, growing the | |
4586 | list as necessary. */ | |
4587 | ||
4588 | static void | |
6f937416 | 4589 | add_filename_to_list (const char *fname, const char *text, const char *word, |
49c4e619 | 4590 | VEC (char_ptr) **list) |
c94fdfd0 EZ |
4591 | { |
4592 | char *new; | |
4593 | size_t fnlen = strlen (fname); | |
4594 | ||
c94fdfd0 EZ |
4595 | if (word == text) |
4596 | { | |
4597 | /* Return exactly fname. */ | |
4598 | new = xmalloc (fnlen + 5); | |
4599 | strcpy (new, fname); | |
4600 | } | |
4601 | else if (word > text) | |
4602 | { | |
4603 | /* Return some portion of fname. */ | |
4604 | new = xmalloc (fnlen + 5); | |
4605 | strcpy (new, fname + (word - text)); | |
4606 | } | |
4607 | else | |
4608 | { | |
4609 | /* Return some of TEXT plus fname. */ | |
4610 | new = xmalloc (fnlen + (text - word) + 5); | |
4611 | strncpy (new, word, text - word); | |
4612 | new[text - word] = '\0'; | |
4613 | strcat (new, fname); | |
4614 | } | |
49c4e619 | 4615 | VEC_safe_push (char_ptr, *list, new); |
c94fdfd0 EZ |
4616 | } |
4617 | ||
4618 | static int | |
4619 | not_interesting_fname (const char *fname) | |
4620 | { | |
4621 | static const char *illegal_aliens[] = { | |
4622 | "_globals_", /* inserted by coff_symtab_read */ | |
4623 | NULL | |
4624 | }; | |
4625 | int i; | |
4626 | ||
4627 | for (i = 0; illegal_aliens[i]; i++) | |
4628 | { | |
0ba1096a | 4629 | if (filename_cmp (fname, illegal_aliens[i]) == 0) |
c94fdfd0 EZ |
4630 | return 1; |
4631 | } | |
4632 | return 0; | |
4633 | } | |
4634 | ||
ccefe4c4 TT |
4635 | /* An object of this type is passed as the user_data argument to |
4636 | map_partial_symbol_filenames. */ | |
4637 | struct add_partial_filename_data | |
4638 | { | |
9fdc877b | 4639 | struct filename_seen_cache *filename_seen_cache; |
6f937416 PA |
4640 | const char *text; |
4641 | const char *word; | |
ccefe4c4 | 4642 | int text_len; |
49c4e619 | 4643 | VEC (char_ptr) **list; |
ccefe4c4 TT |
4644 | }; |
4645 | ||
4646 | /* A callback for map_partial_symbol_filenames. */ | |
eca864fe | 4647 | |
ccefe4c4 | 4648 | static void |
2837d59e | 4649 | maybe_add_partial_symtab_filename (const char *filename, const char *fullname, |
ccefe4c4 TT |
4650 | void *user_data) |
4651 | { | |
4652 | struct add_partial_filename_data *data = user_data; | |
4653 | ||
4654 | if (not_interesting_fname (filename)) | |
4655 | return; | |
9fdc877b | 4656 | if (!filename_seen (data->filename_seen_cache, filename, 1) |
0ba1096a | 4657 | && filename_ncmp (filename, data->text, data->text_len) == 0) |
ccefe4c4 TT |
4658 | { |
4659 | /* This file matches for a completion; add it to the | |
4660 | current list of matches. */ | |
49c4e619 | 4661 | add_filename_to_list (filename, data->text, data->word, data->list); |
ccefe4c4 TT |
4662 | } |
4663 | else | |
4664 | { | |
4665 | const char *base_name = lbasename (filename); | |
433759f7 | 4666 | |
ccefe4c4 | 4667 | if (base_name != filename |
9fdc877b | 4668 | && !filename_seen (data->filename_seen_cache, base_name, 1) |
0ba1096a | 4669 | && filename_ncmp (base_name, data->text, data->text_len) == 0) |
49c4e619 | 4670 | add_filename_to_list (base_name, data->text, data->word, data->list); |
ccefe4c4 TT |
4671 | } |
4672 | } | |
4673 | ||
49c4e619 TT |
4674 | /* Return a vector of all source files whose names begin with matching |
4675 | TEXT. The file names are looked up in the symbol tables of this | |
4676 | program. If the answer is no matchess, then the return value is | |
4677 | NULL. */ | |
c94fdfd0 | 4678 | |
49c4e619 | 4679 | VEC (char_ptr) * |
6f937416 | 4680 | make_source_files_completion_list (const char *text, const char *word) |
c94fdfd0 | 4681 | { |
52f0bd74 | 4682 | struct symtab *s; |
52f0bd74 | 4683 | struct objfile *objfile; |
c94fdfd0 | 4684 | size_t text_len = strlen (text); |
49c4e619 | 4685 | VEC (char_ptr) *list = NULL; |
31889e00 | 4686 | const char *base_name; |
ccefe4c4 | 4687 | struct add_partial_filename_data datum; |
9fdc877b DE |
4688 | struct filename_seen_cache *filename_seen_cache; |
4689 | struct cleanup *back_to, *cache_cleanup; | |
c94fdfd0 | 4690 | |
c94fdfd0 EZ |
4691 | if (!have_full_symbols () && !have_partial_symbols ()) |
4692 | return list; | |
4693 | ||
821296b7 SA |
4694 | back_to = make_cleanup (do_free_completion_list, &list); |
4695 | ||
9fdc877b DE |
4696 | filename_seen_cache = create_filename_seen_cache (); |
4697 | cache_cleanup = make_cleanup (delete_filename_seen_cache, | |
4698 | filename_seen_cache); | |
4699 | ||
c94fdfd0 EZ |
4700 | ALL_SYMTABS (objfile, s) |
4701 | { | |
4702 | if (not_interesting_fname (s->filename)) | |
4703 | continue; | |
9fdc877b | 4704 | if (!filename_seen (filename_seen_cache, s->filename, 1) |
0ba1096a | 4705 | && filename_ncmp (s->filename, text, text_len) == 0) |
c94fdfd0 EZ |
4706 | { |
4707 | /* This file matches for a completion; add it to the current | |
4708 | list of matches. */ | |
49c4e619 | 4709 | add_filename_to_list (s->filename, text, word, &list); |
c94fdfd0 EZ |
4710 | } |
4711 | else | |
4712 | { | |
4713 | /* NOTE: We allow the user to type a base name when the | |
4714 | debug info records leading directories, but not the other | |
4715 | way around. This is what subroutines of breakpoint | |
4716 | command do when they parse file names. */ | |
31889e00 | 4717 | base_name = lbasename (s->filename); |
c94fdfd0 | 4718 | if (base_name != s->filename |
9fdc877b | 4719 | && !filename_seen (filename_seen_cache, base_name, 1) |
0ba1096a | 4720 | && filename_ncmp (base_name, text, text_len) == 0) |
49c4e619 | 4721 | add_filename_to_list (base_name, text, word, &list); |
c94fdfd0 EZ |
4722 | } |
4723 | } | |
4724 | ||
9fdc877b | 4725 | datum.filename_seen_cache = filename_seen_cache; |
ccefe4c4 TT |
4726 | datum.text = text; |
4727 | datum.word = word; | |
4728 | datum.text_len = text_len; | |
4729 | datum.list = &list; | |
74e2f255 DE |
4730 | map_partial_symbol_filenames (maybe_add_partial_symtab_filename, &datum, |
4731 | 0 /*need_fullname*/); | |
9fdc877b DE |
4732 | |
4733 | do_cleanups (cache_cleanup); | |
821296b7 | 4734 | discard_cleanups (back_to); |
c94fdfd0 EZ |
4735 | |
4736 | return list; | |
4737 | } | |
4738 | ||
c906108c SS |
4739 | /* Determine if PC is in the prologue of a function. The prologue is the area |
4740 | between the first instruction of a function, and the first executable line. | |
4741 | Returns 1 if PC *might* be in prologue, 0 if definately *not* in prologue. | |
4742 | ||
4743 | If non-zero, func_start is where we think the prologue starts, possibly | |
c378eb4e | 4744 | by previous examination of symbol table information. */ |
c906108c SS |
4745 | |
4746 | int | |
d80b854b | 4747 | in_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR func_start) |
c906108c SS |
4748 | { |
4749 | struct symtab_and_line sal; | |
4750 | CORE_ADDR func_addr, func_end; | |
4751 | ||
54cf9c03 EZ |
4752 | /* We have several sources of information we can consult to figure |
4753 | this out. | |
4754 | - Compilers usually emit line number info that marks the prologue | |
4755 | as its own "source line". So the ending address of that "line" | |
4756 | is the end of the prologue. If available, this is the most | |
4757 | reliable method. | |
4758 | - The minimal symbols and partial symbols, which can usually tell | |
4759 | us the starting and ending addresses of a function. | |
4760 | - If we know the function's start address, we can call the | |
a433963d | 4761 | architecture-defined gdbarch_skip_prologue function to analyze the |
54cf9c03 EZ |
4762 | instruction stream and guess where the prologue ends. |
4763 | - Our `func_start' argument; if non-zero, this is the caller's | |
4764 | best guess as to the function's entry point. At the time of | |
4765 | this writing, handle_inferior_event doesn't get this right, so | |
4766 | it should be our last resort. */ | |
4767 | ||
4768 | /* Consult the partial symbol table, to find which function | |
4769 | the PC is in. */ | |
4770 | if (! find_pc_partial_function (pc, NULL, &func_addr, &func_end)) | |
4771 | { | |
4772 | CORE_ADDR prologue_end; | |
c906108c | 4773 | |
54cf9c03 EZ |
4774 | /* We don't even have minsym information, so fall back to using |
4775 | func_start, if given. */ | |
4776 | if (! func_start) | |
4777 | return 1; /* We *might* be in a prologue. */ | |
c906108c | 4778 | |
d80b854b | 4779 | prologue_end = gdbarch_skip_prologue (gdbarch, func_start); |
c906108c | 4780 | |
54cf9c03 EZ |
4781 | return func_start <= pc && pc < prologue_end; |
4782 | } | |
c906108c | 4783 | |
54cf9c03 EZ |
4784 | /* If we have line number information for the function, that's |
4785 | usually pretty reliable. */ | |
4786 | sal = find_pc_line (func_addr, 0); | |
c906108c | 4787 | |
54cf9c03 EZ |
4788 | /* Now sal describes the source line at the function's entry point, |
4789 | which (by convention) is the prologue. The end of that "line", | |
4790 | sal.end, is the end of the prologue. | |
4791 | ||
4792 | Note that, for functions whose source code is all on a single | |
4793 | line, the line number information doesn't always end up this way. | |
4794 | So we must verify that our purported end-of-prologue address is | |
4795 | *within* the function, not at its start or end. */ | |
4796 | if (sal.line == 0 | |
4797 | || sal.end <= func_addr | |
4798 | || func_end <= sal.end) | |
4799 | { | |
4800 | /* We don't have any good line number info, so use the minsym | |
4801 | information, together with the architecture-specific prologue | |
4802 | scanning code. */ | |
d80b854b | 4803 | CORE_ADDR prologue_end = gdbarch_skip_prologue (gdbarch, func_addr); |
c906108c | 4804 | |
54cf9c03 EZ |
4805 | return func_addr <= pc && pc < prologue_end; |
4806 | } | |
c906108c | 4807 | |
54cf9c03 EZ |
4808 | /* We have line number info, and it looks good. */ |
4809 | return func_addr <= pc && pc < sal.end; | |
c906108c SS |
4810 | } |
4811 | ||
634aa483 AC |
4812 | /* Given PC at the function's start address, attempt to find the |
4813 | prologue end using SAL information. Return zero if the skip fails. | |
4814 | ||
4815 | A non-optimized prologue traditionally has one SAL for the function | |
4816 | and a second for the function body. A single line function has | |
4817 | them both pointing at the same line. | |
4818 | ||
4819 | An optimized prologue is similar but the prologue may contain | |
4820 | instructions (SALs) from the instruction body. Need to skip those | |
4821 | while not getting into the function body. | |
4822 | ||
4823 | The functions end point and an increasing SAL line are used as | |
4824 | indicators of the prologue's endpoint. | |
4825 | ||
7475b06c TJB |
4826 | This code is based on the function refine_prologue_limit |
4827 | (found in ia64). */ | |
634aa483 AC |
4828 | |
4829 | CORE_ADDR | |
d80b854b | 4830 | skip_prologue_using_sal (struct gdbarch *gdbarch, CORE_ADDR func_addr) |
634aa483 AC |
4831 | { |
4832 | struct symtab_and_line prologue_sal; | |
4833 | CORE_ADDR start_pc; | |
4834 | CORE_ADDR end_pc; | |
d54be744 | 4835 | struct block *bl; |
634aa483 AC |
4836 | |
4837 | /* Get an initial range for the function. */ | |
4838 | find_pc_partial_function (func_addr, NULL, &start_pc, &end_pc); | |
d80b854b | 4839 | start_pc += gdbarch_deprecated_function_start_offset (gdbarch); |
634aa483 AC |
4840 | |
4841 | prologue_sal = find_pc_line (start_pc, 0); | |
4842 | if (prologue_sal.line != 0) | |
4843 | { | |
e5dd4106 | 4844 | /* For languages other than assembly, treat two consecutive line |
d54be744 DJ |
4845 | entries at the same address as a zero-instruction prologue. |
4846 | The GNU assembler emits separate line notes for each instruction | |
4847 | in a multi-instruction macro, but compilers generally will not | |
4848 | do this. */ | |
4849 | if (prologue_sal.symtab->language != language_asm) | |
4850 | { | |
4851 | struct linetable *linetable = LINETABLE (prologue_sal.symtab); | |
d54be744 DJ |
4852 | int idx = 0; |
4853 | ||
4854 | /* Skip any earlier lines, and any end-of-sequence marker | |
4855 | from a previous function. */ | |
4856 | while (linetable->item[idx].pc != prologue_sal.pc | |
4857 | || linetable->item[idx].line == 0) | |
4858 | idx++; | |
4859 | ||
4860 | if (idx+1 < linetable->nitems | |
4861 | && linetable->item[idx+1].line != 0 | |
4862 | && linetable->item[idx+1].pc == start_pc) | |
4863 | return start_pc; | |
4864 | } | |
4865 | ||
576c2025 FF |
4866 | /* If there is only one sal that covers the entire function, |
4867 | then it is probably a single line function, like | |
c378eb4e | 4868 | "foo(){}". */ |
91934273 | 4869 | if (prologue_sal.end >= end_pc) |
4e463ff5 | 4870 | return 0; |
d54be744 | 4871 | |
634aa483 AC |
4872 | while (prologue_sal.end < end_pc) |
4873 | { | |
4874 | struct symtab_and_line sal; | |
4875 | ||
4876 | sal = find_pc_line (prologue_sal.end, 0); | |
4877 | if (sal.line == 0) | |
4878 | break; | |
4879 | /* Assume that a consecutive SAL for the same (or larger) | |
4880 | line mark the prologue -> body transition. */ | |
4881 | if (sal.line >= prologue_sal.line) | |
4882 | break; | |
2077afdd TD |
4883 | /* Likewise if we are in a different symtab altogether |
4884 | (e.g. within a file included via #include). */ | |
4885 | if (sal.symtab != prologue_sal.symtab) | |
4886 | break; | |
edb3359d DJ |
4887 | |
4888 | /* The line number is smaller. Check that it's from the | |
4889 | same function, not something inlined. If it's inlined, | |
4890 | then there is no point comparing the line numbers. */ | |
4891 | bl = block_for_pc (prologue_sal.end); | |
4892 | while (bl) | |
4893 | { | |
4894 | if (block_inlined_p (bl)) | |
4895 | break; | |
4896 | if (BLOCK_FUNCTION (bl)) | |
4897 | { | |
4898 | bl = NULL; | |
4899 | break; | |
4900 | } | |
4901 | bl = BLOCK_SUPERBLOCK (bl); | |
4902 | } | |
4903 | if (bl != NULL) | |
4904 | break; | |
4905 | ||
634aa483 AC |
4906 | /* The case in which compiler's optimizer/scheduler has |
4907 | moved instructions into the prologue. We look ahead in | |
4908 | the function looking for address ranges whose | |
4909 | corresponding line number is less the first one that we | |
4910 | found for the function. This is more conservative then | |
4911 | refine_prologue_limit which scans a large number of SALs | |
c378eb4e | 4912 | looking for any in the prologue. */ |
634aa483 AC |
4913 | prologue_sal = sal; |
4914 | } | |
4915 | } | |
d54be744 DJ |
4916 | |
4917 | if (prologue_sal.end < end_pc) | |
4918 | /* Return the end of this line, or zero if we could not find a | |
4919 | line. */ | |
4920 | return prologue_sal.end; | |
4921 | else | |
4922 | /* Don't return END_PC, which is past the end of the function. */ | |
4923 | return prologue_sal.pc; | |
634aa483 | 4924 | } |
c906108c | 4925 | \f |
51cc5b07 AC |
4926 | /* Track MAIN */ |
4927 | static char *name_of_main; | |
01f8c46d | 4928 | enum language language_of_main = language_unknown; |
51cc5b07 AC |
4929 | |
4930 | void | |
4931 | set_main_name (const char *name) | |
4932 | { | |
4933 | if (name_of_main != NULL) | |
4934 | { | |
4935 | xfree (name_of_main); | |
4936 | name_of_main = NULL; | |
01f8c46d | 4937 | language_of_main = language_unknown; |
51cc5b07 AC |
4938 | } |
4939 | if (name != NULL) | |
4940 | { | |
4941 | name_of_main = xstrdup (name); | |
01f8c46d | 4942 | language_of_main = language_unknown; |
51cc5b07 AC |
4943 | } |
4944 | } | |
4945 | ||
ea53e89f JB |
4946 | /* Deduce the name of the main procedure, and set NAME_OF_MAIN |
4947 | accordingly. */ | |
4948 | ||
4949 | static void | |
4950 | find_main_name (void) | |
4951 | { | |
cd6c7346 | 4952 | const char *new_main_name; |
ea53e89f JB |
4953 | |
4954 | /* Try to see if the main procedure is in Ada. */ | |
4955 | /* FIXME: brobecker/2005-03-07: Another way of doing this would | |
4956 | be to add a new method in the language vector, and call this | |
4957 | method for each language until one of them returns a non-empty | |
4958 | name. This would allow us to remove this hard-coded call to | |
4959 | an Ada function. It is not clear that this is a better approach | |
4960 | at this point, because all methods need to be written in a way | |
c378eb4e | 4961 | such that false positives never be returned. For instance, it is |
ea53e89f JB |
4962 | important that a method does not return a wrong name for the main |
4963 | procedure if the main procedure is actually written in a different | |
4964 | language. It is easy to guaranty this with Ada, since we use a | |
4965 | special symbol generated only when the main in Ada to find the name | |
c378eb4e | 4966 | of the main procedure. It is difficult however to see how this can |
ea53e89f JB |
4967 | be guarantied for languages such as C, for instance. This suggests |
4968 | that order of call for these methods becomes important, which means | |
4969 | a more complicated approach. */ | |
4970 | new_main_name = ada_main_name (); | |
4971 | if (new_main_name != NULL) | |
9af17804 | 4972 | { |
ea53e89f JB |
4973 | set_main_name (new_main_name); |
4974 | return; | |
4975 | } | |
4976 | ||
a766d390 DE |
4977 | new_main_name = go_main_name (); |
4978 | if (new_main_name != NULL) | |
4979 | { | |
4980 | set_main_name (new_main_name); | |
4981 | return; | |
4982 | } | |
4983 | ||
cd6c7346 PM |
4984 | new_main_name = pascal_main_name (); |
4985 | if (new_main_name != NULL) | |
9af17804 | 4986 | { |
cd6c7346 PM |
4987 | set_main_name (new_main_name); |
4988 | return; | |
4989 | } | |
4990 | ||
ea53e89f JB |
4991 | /* The languages above didn't identify the name of the main procedure. |
4992 | Fallback to "main". */ | |
4993 | set_main_name ("main"); | |
4994 | } | |
4995 | ||
51cc5b07 AC |
4996 | char * |
4997 | main_name (void) | |
4998 | { | |
ea53e89f JB |
4999 | if (name_of_main == NULL) |
5000 | find_main_name (); | |
5001 | ||
5002 | return name_of_main; | |
51cc5b07 AC |
5003 | } |
5004 | ||
ea53e89f JB |
5005 | /* Handle ``executable_changed'' events for the symtab module. */ |
5006 | ||
5007 | static void | |
781b42b0 | 5008 | symtab_observer_executable_changed (void) |
ea53e89f JB |
5009 | { |
5010 | /* NAME_OF_MAIN may no longer be the same, so reset it for now. */ | |
5011 | set_main_name (NULL); | |
5012 | } | |
51cc5b07 | 5013 | |
a6c727b2 DJ |
5014 | /* Return 1 if the supplied producer string matches the ARM RealView |
5015 | compiler (armcc). */ | |
5016 | ||
5017 | int | |
5018 | producer_is_realview (const char *producer) | |
5019 | { | |
5020 | static const char *const arm_idents[] = { | |
5021 | "ARM C Compiler, ADS", | |
5022 | "Thumb C Compiler, ADS", | |
5023 | "ARM C++ Compiler, ADS", | |
5024 | "Thumb C++ Compiler, ADS", | |
5025 | "ARM/Thumb C/C++ Compiler, RVCT", | |
5026 | "ARM C/C++ Compiler, RVCT" | |
5027 | }; | |
5028 | int i; | |
5029 | ||
5030 | if (producer == NULL) | |
5031 | return 0; | |
5032 | ||
5033 | for (i = 0; i < ARRAY_SIZE (arm_idents); i++) | |
5034 | if (strncmp (producer, arm_idents[i], strlen (arm_idents[i])) == 0) | |
5035 | return 1; | |
5036 | ||
5037 | return 0; | |
5038 | } | |
ed0616c6 | 5039 | |
c906108c | 5040 | void |
fba45db2 | 5041 | _initialize_symtab (void) |
c906108c | 5042 | { |
1bedd215 AC |
5043 | add_info ("variables", variables_info, _("\ |
5044 | All global and static variable names, or those matching REGEXP.")); | |
c906108c | 5045 | if (dbx_commands) |
1bedd215 AC |
5046 | add_com ("whereis", class_info, variables_info, _("\ |
5047 | All global and static variable names, or those matching REGEXP.")); | |
c906108c SS |
5048 | |
5049 | add_info ("functions", functions_info, | |
1bedd215 | 5050 | _("All function names, or those matching REGEXP.")); |
c906108c SS |
5051 | |
5052 | /* FIXME: This command has at least the following problems: | |
5053 | 1. It prints builtin types (in a very strange and confusing fashion). | |
5054 | 2. It doesn't print right, e.g. with | |
c5aa993b JM |
5055 | typedef struct foo *FOO |
5056 | type_print prints "FOO" when we want to make it (in this situation) | |
5057 | print "struct foo *". | |
c906108c SS |
5058 | I also think "ptype" or "whatis" is more likely to be useful (but if |
5059 | there is much disagreement "info types" can be fixed). */ | |
5060 | add_info ("types", types_info, | |
1bedd215 | 5061 | _("All type names, or those matching REGEXP.")); |
c906108c | 5062 | |
c906108c | 5063 | add_info ("sources", sources_info, |
1bedd215 | 5064 | _("Source files in the program.")); |
c906108c SS |
5065 | |
5066 | add_com ("rbreak", class_breakpoint, rbreak_command, | |
1bedd215 | 5067 | _("Set a breakpoint for all functions matching REGEXP.")); |
c906108c SS |
5068 | |
5069 | if (xdb_commands) | |
5070 | { | |
1bedd215 AC |
5071 | add_com ("lf", class_info, sources_info, |
5072 | _("Source files in the program")); | |
5073 | add_com ("lg", class_info, variables_info, _("\ | |
5074 | All global and static variable names, or those matching REGEXP.")); | |
c906108c SS |
5075 | } |
5076 | ||
717d2f5a JB |
5077 | add_setshow_enum_cmd ("multiple-symbols", no_class, |
5078 | multiple_symbols_modes, &multiple_symbols_mode, | |
5079 | _("\ | |
5080 | Set the debugger behavior when more than one symbol are possible matches\n\ | |
5081 | in an expression."), _("\ | |
5082 | Show how the debugger handles ambiguities in expressions."), _("\ | |
5083 | Valid values are \"ask\", \"all\", \"cancel\", and the default is \"all\"."), | |
5084 | NULL, NULL, &setlist, &showlist); | |
5085 | ||
c011a4f4 DE |
5086 | add_setshow_boolean_cmd ("basenames-may-differ", class_obscure, |
5087 | &basenames_may_differ, _("\ | |
5088 | Set whether a source file may have multiple base names."), _("\ | |
5089 | Show whether a source file may have multiple base names."), _("\ | |
5090 | (A \"base name\" is the name of a file with the directory part removed.\n\ | |
5091 | Example: The base name of \"/home/user/hello.c\" is \"hello.c\".)\n\ | |
5092 | If set, GDB will canonicalize file names (e.g., expand symlinks)\n\ | |
5093 | before comparing them. Canonicalization is an expensive operation,\n\ | |
5094 | but it allows the same file be known by more than one base name.\n\ | |
5095 | If not set (the default), all source files are assumed to have just\n\ | |
5096 | one base name, and gdb will do file name comparisons more efficiently."), | |
5097 | NULL, NULL, | |
5098 | &setlist, &showlist); | |
5099 | ||
45cfd468 DE |
5100 | add_setshow_boolean_cmd ("symtab-create", no_class, &symtab_create_debug, |
5101 | _("Set debugging of symbol table creation."), | |
5102 | _("Show debugging of symbol table creation."), _("\ | |
5103 | When enabled, debugging messages are printed when building symbol tables."), | |
5104 | NULL, | |
5105 | NULL, | |
5106 | &setdebuglist, &showdebuglist); | |
5107 | ||
ea53e89f | 5108 | observer_attach_executable_changed (symtab_observer_executable_changed); |
c906108c | 5109 | } |