Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Symbol table lookup for the GNU debugger, GDB. |
8926118c | 2 | |
6aba47ca | 3 | Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, |
4c38e0a4 JB |
4 | 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2007, 2008, 2009, |
5 | 2010 Free Software Foundation, Inc. | |
c906108c | 6 | |
c5aa993b | 7 | This file is part of GDB. |
c906108c | 8 | |
c5aa993b JM |
9 | This program is free software; you can redistribute it and/or modify |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 12 | (at your option) any later version. |
c906108c | 13 | |
c5aa993b JM |
14 | This program is distributed in the hope that it will be useful, |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
c906108c | 18 | |
c5aa993b | 19 | You should have received a copy of the GNU General Public License |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
21 | |
22 | #include "defs.h" | |
23 | #include "symtab.h" | |
24 | #include "gdbtypes.h" | |
25 | #include "gdbcore.h" | |
26 | #include "frame.h" | |
27 | #include "target.h" | |
28 | #include "value.h" | |
29 | #include "symfile.h" | |
30 | #include "objfiles.h" | |
31 | #include "gdbcmd.h" | |
32 | #include "call-cmds.h" | |
88987551 | 33 | #include "gdb_regex.h" |
c906108c SS |
34 | #include "expression.h" |
35 | #include "language.h" | |
36 | #include "demangle.h" | |
37 | #include "inferior.h" | |
c5f0f3d0 | 38 | #include "linespec.h" |
0378c332 | 39 | #include "source.h" |
a7fdf62f | 40 | #include "filenames.h" /* for FILENAME_CMP */ |
1bae87b9 | 41 | #include "objc-lang.h" |
6aecb9c2 | 42 | #include "d-lang.h" |
1f8173e6 | 43 | #include "ada-lang.h" |
cd6c7346 | 44 | #include "p-lang.h" |
ff013f42 | 45 | #include "addrmap.h" |
c906108c | 46 | |
2de7ced7 DJ |
47 | #include "hashtab.h" |
48 | ||
04ea0df1 | 49 | #include "gdb_obstack.h" |
fe898f56 | 50 | #include "block.h" |
de4f826b | 51 | #include "dictionary.h" |
c906108c SS |
52 | |
53 | #include <sys/types.h> | |
54 | #include <fcntl.h> | |
55 | #include "gdb_string.h" | |
56 | #include "gdb_stat.h" | |
57 | #include <ctype.h> | |
015a42b4 | 58 | #include "cp-abi.h" |
71c25dea | 59 | #include "cp-support.h" |
ea53e89f | 60 | #include "observer.h" |
94277a38 | 61 | #include "gdb_assert.h" |
3a40aaa0 | 62 | #include "solist.h" |
9a044a89 TT |
63 | #include "macrotab.h" |
64 | #include "macroscope.h" | |
c906108c | 65 | |
ccefe4c4 TT |
66 | #include "psymtab.h" |
67 | ||
c906108c SS |
68 | /* Prototypes for local functions */ |
69 | ||
a14ed312 | 70 | static void completion_list_add_name (char *, char *, int, char *, char *); |
c906108c | 71 | |
a14ed312 | 72 | static void rbreak_command (char *, int); |
c906108c | 73 | |
a14ed312 | 74 | static void types_info (char *, int); |
c906108c | 75 | |
a14ed312 | 76 | static void functions_info (char *, int); |
c906108c | 77 | |
a14ed312 | 78 | static void variables_info (char *, int); |
c906108c | 79 | |
a14ed312 | 80 | static void sources_info (char *, int); |
c906108c | 81 | |
d092d1a2 | 82 | static void output_source_filename (const char *, int *); |
c906108c | 83 | |
a14ed312 | 84 | static int find_line_common (struct linetable *, int, int *); |
c906108c | 85 | |
50641945 FN |
86 | /* This one is used by linespec.c */ |
87 | ||
88 | char *operator_chars (char *p, char **end); | |
89 | ||
3121eff0 | 90 | static struct symbol *lookup_symbol_aux (const char *name, |
3121eff0 | 91 | const struct block *block, |
176620f1 | 92 | const domain_enum domain, |
53c5240f | 93 | enum language language, |
21b556f4 | 94 | int *is_a_field_of_this); |
fba7f19c | 95 | |
e4051eeb DC |
96 | static |
97 | struct symbol *lookup_symbol_aux_local (const char *name, | |
e4051eeb | 98 | const struct block *block, |
13387711 SW |
99 | const domain_enum domain, |
100 | enum language language); | |
8155455b DC |
101 | |
102 | static | |
103 | struct symbol *lookup_symbol_aux_symtabs (int block_index, | |
104 | const char *name, | |
21b556f4 | 105 | const domain_enum domain); |
8155455b DC |
106 | |
107 | static | |
ccefe4c4 TT |
108 | struct symbol *lookup_symbol_aux_quick (struct objfile *objfile, |
109 | int block_index, | |
110 | const char *name, | |
111 | const domain_enum domain); | |
c906108c | 112 | |
176620f1 | 113 | static void print_symbol_info (domain_enum, |
a14ed312 | 114 | struct symtab *, struct symbol *, int, char *); |
c906108c | 115 | |
a14ed312 | 116 | static void print_msymbol_info (struct minimal_symbol *); |
c906108c | 117 | |
176620f1 | 118 | static void symtab_symbol_info (char *, domain_enum, int); |
c906108c | 119 | |
a14ed312 | 120 | void _initialize_symtab (void); |
c906108c SS |
121 | |
122 | /* */ | |
123 | ||
717d2f5a JB |
124 | /* Allow the user to configure the debugger behavior with respect |
125 | to multiple-choice menus when more than one symbol matches during | |
126 | a symbol lookup. */ | |
127 | ||
7fc830e2 MK |
128 | const char multiple_symbols_ask[] = "ask"; |
129 | const char multiple_symbols_all[] = "all"; | |
130 | const char multiple_symbols_cancel[] = "cancel"; | |
717d2f5a JB |
131 | static const char *multiple_symbols_modes[] = |
132 | { | |
133 | multiple_symbols_ask, | |
134 | multiple_symbols_all, | |
135 | multiple_symbols_cancel, | |
136 | NULL | |
137 | }; | |
138 | static const char *multiple_symbols_mode = multiple_symbols_all; | |
139 | ||
140 | /* Read-only accessor to AUTO_SELECT_MODE. */ | |
141 | ||
142 | const char * | |
143 | multiple_symbols_select_mode (void) | |
144 | { | |
145 | return multiple_symbols_mode; | |
146 | } | |
147 | ||
c906108c | 148 | /* Block in which the most recently searched-for symbol was found. |
9af17804 | 149 | Might be better to make this a parameter to lookup_symbol and |
c906108c SS |
150 | value_of_this. */ |
151 | ||
152 | const struct block *block_found; | |
153 | ||
c906108c SS |
154 | /* Check for a symtab of a specific name; first in symtabs, then in |
155 | psymtabs. *If* there is no '/' in the name, a match after a '/' | |
156 | in the symtab filename will also work. */ | |
157 | ||
1b15f1fa TT |
158 | struct symtab * |
159 | lookup_symtab (const char *name) | |
c906108c | 160 | { |
ccefe4c4 TT |
161 | int found; |
162 | struct symtab *s = NULL; | |
52f0bd74 | 163 | struct objfile *objfile; |
58d370e0 | 164 | char *real_path = NULL; |
f079a2e5 | 165 | char *full_path = NULL; |
58d370e0 TT |
166 | |
167 | /* Here we are interested in canonicalizing an absolute path, not | |
168 | absolutizing a relative path. */ | |
169 | if (IS_ABSOLUTE_PATH (name)) | |
f079a2e5 JB |
170 | { |
171 | full_path = xfullpath (name); | |
172 | make_cleanup (xfree, full_path); | |
173 | real_path = gdb_realpath (name); | |
174 | make_cleanup (xfree, real_path); | |
175 | } | |
c906108c | 176 | |
c5aa993b | 177 | got_symtab: |
c906108c SS |
178 | |
179 | /* First, search for an exact match */ | |
180 | ||
181 | ALL_SYMTABS (objfile, s) | |
58d370e0 | 182 | { |
a7fdf62f | 183 | if (FILENAME_CMP (name, s->filename) == 0) |
58d370e0 | 184 | { |
58d370e0 TT |
185 | return s; |
186 | } | |
9af17804 | 187 | |
58d370e0 TT |
188 | /* If the user gave us an absolute path, try to find the file in |
189 | this symtab and use its absolute path. */ | |
9af17804 | 190 | |
f079a2e5 JB |
191 | if (full_path != NULL) |
192 | { | |
09bcec80 | 193 | const char *fp = symtab_to_fullname (s); |
433759f7 | 194 | |
09bcec80 BR |
195 | if (fp != NULL && FILENAME_CMP (full_path, fp) == 0) |
196 | { | |
197 | return s; | |
198 | } | |
f079a2e5 JB |
199 | } |
200 | ||
58d370e0 TT |
201 | if (real_path != NULL) |
202 | { | |
09bcec80 | 203 | char *fullname = symtab_to_fullname (s); |
433759f7 | 204 | |
09bcec80 BR |
205 | if (fullname != NULL) |
206 | { | |
207 | char *rp = gdb_realpath (fullname); | |
433759f7 | 208 | |
09bcec80 BR |
209 | make_cleanup (xfree, rp); |
210 | if (FILENAME_CMP (real_path, rp) == 0) | |
211 | { | |
212 | return s; | |
213 | } | |
214 | } | |
58d370e0 TT |
215 | } |
216 | } | |
217 | ||
c906108c SS |
218 | /* Now, search for a matching tail (only if name doesn't have any dirs) */ |
219 | ||
caadab2c | 220 | if (lbasename (name) == name) |
c906108c | 221 | ALL_SYMTABS (objfile, s) |
c5aa993b | 222 | { |
31889e00 | 223 | if (FILENAME_CMP (lbasename (s->filename), name) == 0) |
c5aa993b JM |
224 | return s; |
225 | } | |
c906108c SS |
226 | |
227 | /* Same search rules as above apply here, but now we look thru the | |
228 | psymtabs. */ | |
229 | ||
ccefe4c4 TT |
230 | found = 0; |
231 | ALL_OBJFILES (objfile) | |
232 | { | |
233 | if (objfile->sf | |
234 | && objfile->sf->qf->lookup_symtab (objfile, name, full_path, real_path, | |
235 | &s)) | |
236 | { | |
237 | found = 1; | |
238 | break; | |
239 | } | |
240 | } | |
c906108c | 241 | |
ccefe4c4 | 242 | if (s != NULL) |
c906108c | 243 | return s; |
ccefe4c4 TT |
244 | if (!found) |
245 | return NULL; | |
c906108c SS |
246 | |
247 | /* At this point, we have located the psymtab for this file, but | |
248 | the conversion to a symtab has failed. This usually happens | |
249 | when we are looking up an include file. In this case, | |
250 | PSYMTAB_TO_SYMTAB doesn't return a symtab, even though one has | |
251 | been created. So, we need to run through the symtabs again in | |
252 | order to find the file. | |
253 | XXX - This is a crock, and should be fixed inside of the the | |
254 | symbol parsing routines. */ | |
255 | goto got_symtab; | |
256 | } | |
c906108c SS |
257 | \f |
258 | /* Mangle a GDB method stub type. This actually reassembles the pieces of the | |
259 | full method name, which consist of the class name (from T), the unadorned | |
260 | method name from METHOD_ID, and the signature for the specific overload, | |
261 | specified by SIGNATURE_ID. Note that this function is g++ specific. */ | |
262 | ||
263 | char * | |
fba45db2 | 264 | gdb_mangle_name (struct type *type, int method_id, int signature_id) |
c906108c SS |
265 | { |
266 | int mangled_name_len; | |
267 | char *mangled_name; | |
268 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
269 | struct fn_field *method = &f[signature_id]; | |
270 | char *field_name = TYPE_FN_FIELDLIST_NAME (type, method_id); | |
271 | char *physname = TYPE_FN_FIELD_PHYSNAME (f, signature_id); | |
272 | char *newname = type_name_no_tag (type); | |
273 | ||
274 | /* Does the form of physname indicate that it is the full mangled name | |
275 | of a constructor (not just the args)? */ | |
276 | int is_full_physname_constructor; | |
277 | ||
278 | int is_constructor; | |
015a42b4 | 279 | int is_destructor = is_destructor_name (physname); |
c906108c SS |
280 | /* Need a new type prefix. */ |
281 | char *const_prefix = method->is_const ? "C" : ""; | |
282 | char *volatile_prefix = method->is_volatile ? "V" : ""; | |
283 | char buf[20]; | |
284 | int len = (newname == NULL ? 0 : strlen (newname)); | |
285 | ||
43630227 PS |
286 | /* Nothing to do if physname already contains a fully mangled v3 abi name |
287 | or an operator name. */ | |
288 | if ((physname[0] == '_' && physname[1] == 'Z') | |
289 | || is_operator_name (field_name)) | |
235d1e03 EZ |
290 | return xstrdup (physname); |
291 | ||
015a42b4 | 292 | is_full_physname_constructor = is_constructor_name (physname); |
c906108c SS |
293 | |
294 | is_constructor = | |
6314a349 | 295 | is_full_physname_constructor || (newname && strcmp (field_name, newname) == 0); |
c906108c SS |
296 | |
297 | if (!is_destructor) | |
c5aa993b | 298 | is_destructor = (strncmp (physname, "__dt", 4) == 0); |
c906108c SS |
299 | |
300 | if (is_destructor || is_full_physname_constructor) | |
301 | { | |
c5aa993b JM |
302 | mangled_name = (char *) xmalloc (strlen (physname) + 1); |
303 | strcpy (mangled_name, physname); | |
c906108c SS |
304 | return mangled_name; |
305 | } | |
306 | ||
307 | if (len == 0) | |
308 | { | |
309 | sprintf (buf, "__%s%s", const_prefix, volatile_prefix); | |
310 | } | |
311 | else if (physname[0] == 't' || physname[0] == 'Q') | |
312 | { | |
313 | /* The physname for template and qualified methods already includes | |
c5aa993b | 314 | the class name. */ |
c906108c SS |
315 | sprintf (buf, "__%s%s", const_prefix, volatile_prefix); |
316 | newname = NULL; | |
317 | len = 0; | |
318 | } | |
319 | else | |
320 | { | |
321 | sprintf (buf, "__%s%s%d", const_prefix, volatile_prefix, len); | |
322 | } | |
323 | mangled_name_len = ((is_constructor ? 0 : strlen (field_name)) | |
235d1e03 | 324 | + strlen (buf) + len + strlen (physname) + 1); |
c906108c | 325 | |
433759f7 MS |
326 | mangled_name = (char *) xmalloc (mangled_name_len); |
327 | if (is_constructor) | |
328 | mangled_name[0] = '\0'; | |
329 | else | |
330 | strcpy (mangled_name, field_name); | |
331 | ||
c906108c SS |
332 | strcat (mangled_name, buf); |
333 | /* If the class doesn't have a name, i.e. newname NULL, then we just | |
334 | mangle it using 0 for the length of the class. Thus it gets mangled | |
c5aa993b | 335 | as something starting with `::' rather than `classname::'. */ |
c906108c SS |
336 | if (newname != NULL) |
337 | strcat (mangled_name, newname); | |
338 | ||
339 | strcat (mangled_name, physname); | |
340 | return (mangled_name); | |
341 | } | |
12af6855 | 342 | |
29df156d SW |
343 | /* Initialize the cplus_specific structure. 'cplus_specific' should |
344 | only be allocated for use with cplus symbols. */ | |
345 | ||
346 | static void | |
347 | symbol_init_cplus_specific (struct general_symbol_info *gsymbol, | |
348 | struct objfile *objfile) | |
349 | { | |
350 | /* A language_specific structure should not have been previously | |
351 | initialized. */ | |
352 | gdb_assert (gsymbol->language_specific.cplus_specific == NULL); | |
353 | gdb_assert (objfile != NULL); | |
354 | ||
355 | gsymbol->language_specific.cplus_specific = | |
356 | OBSTACK_ZALLOC (&objfile->objfile_obstack, struct cplus_specific); | |
357 | } | |
358 | ||
b250c185 | 359 | /* Set the demangled name of GSYMBOL to NAME. NAME must be already |
29df156d SW |
360 | correctly allocated. For C++ symbols a cplus_specific struct is |
361 | allocated so OBJFILE must not be NULL. If this is a non C++ symbol | |
362 | OBJFILE can be NULL. */ | |
b250c185 SW |
363 | void |
364 | symbol_set_demangled_name (struct general_symbol_info *gsymbol, | |
29df156d SW |
365 | char *name, |
366 | struct objfile *objfile) | |
b250c185 | 367 | { |
29df156d SW |
368 | if (gsymbol->language == language_cplus) |
369 | { | |
370 | if (gsymbol->language_specific.cplus_specific == NULL) | |
371 | symbol_init_cplus_specific (gsymbol, objfile); | |
372 | ||
373 | gsymbol->language_specific.cplus_specific->demangled_name = name; | |
374 | } | |
375 | else | |
376 | gsymbol->language_specific.mangled_lang.demangled_name = name; | |
b250c185 SW |
377 | } |
378 | ||
379 | /* Return the demangled name of GSYMBOL. */ | |
380 | char * | |
381 | symbol_get_demangled_name (const struct general_symbol_info *gsymbol) | |
382 | { | |
29df156d SW |
383 | if (gsymbol->language == language_cplus) |
384 | { | |
385 | gdb_assert (gsymbol->language_specific.cplus_specific != NULL); | |
386 | return gsymbol->language_specific.cplus_specific->demangled_name; | |
387 | } | |
388 | else | |
389 | return gsymbol->language_specific.mangled_lang.demangled_name; | |
b250c185 SW |
390 | } |
391 | ||
12af6855 | 392 | \f |
89aad1f9 EZ |
393 | /* Initialize the language dependent portion of a symbol |
394 | depending upon the language for the symbol. */ | |
395 | void | |
33e5013e SW |
396 | symbol_set_language (struct general_symbol_info *gsymbol, |
397 | enum language language) | |
89aad1f9 EZ |
398 | { |
399 | gsymbol->language = language; | |
33e5013e | 400 | if (gsymbol->language == language_d |
5784d15e | 401 | || gsymbol->language == language_java |
f55ee35c JK |
402 | || gsymbol->language == language_objc |
403 | || gsymbol->language == language_fortran) | |
89aad1f9 | 404 | { |
29df156d | 405 | symbol_set_demangled_name (gsymbol, NULL, NULL); |
89aad1f9 | 406 | } |
29df156d SW |
407 | else if (gsymbol->language == language_cplus) |
408 | gsymbol->language_specific.cplus_specific = NULL; | |
89aad1f9 EZ |
409 | else |
410 | { | |
411 | memset (&gsymbol->language_specific, 0, | |
412 | sizeof (gsymbol->language_specific)); | |
413 | } | |
414 | } | |
415 | ||
2de7ced7 DJ |
416 | /* Functions to initialize a symbol's mangled name. */ |
417 | ||
04a679b8 TT |
418 | /* Objects of this type are stored in the demangled name hash table. */ |
419 | struct demangled_name_entry | |
420 | { | |
421 | char *mangled; | |
422 | char demangled[1]; | |
423 | }; | |
424 | ||
425 | /* Hash function for the demangled name hash. */ | |
426 | static hashval_t | |
427 | hash_demangled_name_entry (const void *data) | |
428 | { | |
429 | const struct demangled_name_entry *e = data; | |
433759f7 | 430 | |
04a679b8 TT |
431 | return htab_hash_string (e->mangled); |
432 | } | |
433 | ||
434 | /* Equality function for the demangled name hash. */ | |
435 | static int | |
436 | eq_demangled_name_entry (const void *a, const void *b) | |
437 | { | |
438 | const struct demangled_name_entry *da = a; | |
439 | const struct demangled_name_entry *db = b; | |
433759f7 | 440 | |
04a679b8 TT |
441 | return strcmp (da->mangled, db->mangled) == 0; |
442 | } | |
443 | ||
2de7ced7 DJ |
444 | /* Create the hash table used for demangled names. Each hash entry is |
445 | a pair of strings; one for the mangled name and one for the demangled | |
446 | name. The entry is hashed via just the mangled name. */ | |
447 | ||
448 | static void | |
449 | create_demangled_names_hash (struct objfile *objfile) | |
450 | { | |
451 | /* Choose 256 as the starting size of the hash table, somewhat arbitrarily. | |
9af17804 | 452 | The hash table code will round this up to the next prime number. |
2de7ced7 DJ |
453 | Choosing a much larger table size wastes memory, and saves only about |
454 | 1% in symbol reading. */ | |
455 | ||
aa2ee5f6 | 456 | objfile->demangled_names_hash = htab_create_alloc |
04a679b8 | 457 | (256, hash_demangled_name_entry, eq_demangled_name_entry, |
aa2ee5f6 | 458 | NULL, xcalloc, xfree); |
2de7ced7 | 459 | } |
12af6855 | 460 | |
2de7ced7 | 461 | /* Try to determine the demangled name for a symbol, based on the |
12af6855 JB |
462 | language of that symbol. If the language is set to language_auto, |
463 | it will attempt to find any demangling algorithm that works and | |
2de7ced7 DJ |
464 | then set the language appropriately. The returned name is allocated |
465 | by the demangler and should be xfree'd. */ | |
12af6855 | 466 | |
2de7ced7 DJ |
467 | static char * |
468 | symbol_find_demangled_name (struct general_symbol_info *gsymbol, | |
469 | const char *mangled) | |
12af6855 | 470 | { |
12af6855 JB |
471 | char *demangled = NULL; |
472 | ||
473 | if (gsymbol->language == language_unknown) | |
474 | gsymbol->language = language_auto; | |
1bae87b9 AF |
475 | |
476 | if (gsymbol->language == language_objc | |
477 | || gsymbol->language == language_auto) | |
478 | { | |
479 | demangled = | |
480 | objc_demangle (mangled, 0); | |
481 | if (demangled != NULL) | |
482 | { | |
483 | gsymbol->language = language_objc; | |
484 | return demangled; | |
485 | } | |
486 | } | |
12af6855 JB |
487 | if (gsymbol->language == language_cplus |
488 | || gsymbol->language == language_auto) | |
489 | { | |
490 | demangled = | |
94af9270 | 491 | cplus_demangle (mangled, DMGL_PARAMS | DMGL_ANSI | DMGL_VERBOSE); |
12af6855 | 492 | if (demangled != NULL) |
2de7ced7 DJ |
493 | { |
494 | gsymbol->language = language_cplus; | |
495 | return demangled; | |
496 | } | |
12af6855 JB |
497 | } |
498 | if (gsymbol->language == language_java) | |
499 | { | |
500 | demangled = | |
2de7ced7 | 501 | cplus_demangle (mangled, |
12af6855 JB |
502 | DMGL_PARAMS | DMGL_ANSI | DMGL_JAVA); |
503 | if (demangled != NULL) | |
2de7ced7 DJ |
504 | { |
505 | gsymbol->language = language_java; | |
506 | return demangled; | |
507 | } | |
508 | } | |
6aecb9c2 JB |
509 | if (gsymbol->language == language_d |
510 | || gsymbol->language == language_auto) | |
511 | { | |
512 | demangled = d_demangle(mangled, 0); | |
513 | if (demangled != NULL) | |
514 | { | |
515 | gsymbol->language = language_d; | |
516 | return demangled; | |
517 | } | |
518 | } | |
f55ee35c JK |
519 | /* We could support `gsymbol->language == language_fortran' here to provide |
520 | module namespaces also for inferiors with only minimal symbol table (ELF | |
521 | symbols). Just the mangling standard is not standardized across compilers | |
522 | and there is no DW_AT_producer available for inferiors with only the ELF | |
523 | symbols to check the mangling kind. */ | |
2de7ced7 DJ |
524 | return NULL; |
525 | } | |
526 | ||
980cae7a | 527 | /* Set both the mangled and demangled (if any) names for GSYMBOL based |
04a679b8 TT |
528 | on LINKAGE_NAME and LEN. Ordinarily, NAME is copied onto the |
529 | objfile's obstack; but if COPY_NAME is 0 and if NAME is | |
530 | NUL-terminated, then this function assumes that NAME is already | |
531 | correctly saved (either permanently or with a lifetime tied to the | |
532 | objfile), and it will not be copied. | |
533 | ||
534 | The hash table corresponding to OBJFILE is used, and the memory | |
535 | comes from that objfile's objfile_obstack. LINKAGE_NAME is copied, | |
536 | so the pointer can be discarded after calling this function. */ | |
2de7ced7 | 537 | |
d2a52b27 DC |
538 | /* We have to be careful when dealing with Java names: when we run |
539 | into a Java minimal symbol, we don't know it's a Java symbol, so it | |
540 | gets demangled as a C++ name. This is unfortunate, but there's not | |
541 | much we can do about it: but when demangling partial symbols and | |
542 | regular symbols, we'd better not reuse the wrong demangled name. | |
543 | (See PR gdb/1039.) We solve this by putting a distinctive prefix | |
544 | on Java names when storing them in the hash table. */ | |
545 | ||
546 | /* FIXME: carlton/2003-03-13: This is an unfortunate situation. I | |
547 | don't mind the Java prefix so much: different languages have | |
548 | different demangling requirements, so it's only natural that we | |
549 | need to keep language data around in our demangling cache. But | |
550 | it's not good that the minimal symbol has the wrong demangled name. | |
551 | Unfortunately, I can't think of any easy solution to that | |
552 | problem. */ | |
553 | ||
554 | #define JAVA_PREFIX "##JAVA$$" | |
555 | #define JAVA_PREFIX_LEN 8 | |
556 | ||
2de7ced7 DJ |
557 | void |
558 | symbol_set_names (struct general_symbol_info *gsymbol, | |
04a679b8 TT |
559 | const char *linkage_name, int len, int copy_name, |
560 | struct objfile *objfile) | |
2de7ced7 | 561 | { |
04a679b8 | 562 | struct demangled_name_entry **slot; |
980cae7a DC |
563 | /* A 0-terminated copy of the linkage name. */ |
564 | const char *linkage_name_copy; | |
d2a52b27 DC |
565 | /* A copy of the linkage name that might have a special Java prefix |
566 | added to it, for use when looking names up in the hash table. */ | |
567 | const char *lookup_name; | |
568 | /* The length of lookup_name. */ | |
569 | int lookup_len; | |
04a679b8 | 570 | struct demangled_name_entry entry; |
2de7ced7 | 571 | |
b06ead72 JB |
572 | if (gsymbol->language == language_ada) |
573 | { | |
574 | /* In Ada, we do the symbol lookups using the mangled name, so | |
575 | we can save some space by not storing the demangled name. | |
576 | ||
577 | As a side note, we have also observed some overlap between | |
578 | the C++ mangling and Ada mangling, similarly to what has | |
579 | been observed with Java. Because we don't store the demangled | |
580 | name with the symbol, we don't need to use the same trick | |
581 | as Java. */ | |
04a679b8 TT |
582 | if (!copy_name) |
583 | gsymbol->name = (char *) linkage_name; | |
584 | else | |
585 | { | |
586 | gsymbol->name = obstack_alloc (&objfile->objfile_obstack, len + 1); | |
587 | memcpy (gsymbol->name, linkage_name, len); | |
588 | gsymbol->name[len] = '\0'; | |
589 | } | |
29df156d | 590 | symbol_set_demangled_name (gsymbol, NULL, NULL); |
b06ead72 JB |
591 | |
592 | return; | |
593 | } | |
594 | ||
04a679b8 TT |
595 | if (objfile->demangled_names_hash == NULL) |
596 | create_demangled_names_hash (objfile); | |
597 | ||
980cae7a DC |
598 | /* The stabs reader generally provides names that are not |
599 | NUL-terminated; most of the other readers don't do this, so we | |
d2a52b27 DC |
600 | can just use the given copy, unless we're in the Java case. */ |
601 | if (gsymbol->language == language_java) | |
602 | { | |
603 | char *alloc_name; | |
d2a52b27 | 604 | |
433759f7 | 605 | lookup_len = len + JAVA_PREFIX_LEN; |
d2a52b27 DC |
606 | alloc_name = alloca (lookup_len + 1); |
607 | memcpy (alloc_name, JAVA_PREFIX, JAVA_PREFIX_LEN); | |
608 | memcpy (alloc_name + JAVA_PREFIX_LEN, linkage_name, len); | |
609 | alloc_name[lookup_len] = '\0'; | |
610 | ||
611 | lookup_name = alloc_name; | |
612 | linkage_name_copy = alloc_name + JAVA_PREFIX_LEN; | |
613 | } | |
614 | else if (linkage_name[len] != '\0') | |
2de7ced7 | 615 | { |
980cae7a DC |
616 | char *alloc_name; |
617 | ||
433759f7 | 618 | lookup_len = len; |
d2a52b27 | 619 | alloc_name = alloca (lookup_len + 1); |
980cae7a | 620 | memcpy (alloc_name, linkage_name, len); |
d2a52b27 | 621 | alloc_name[lookup_len] = '\0'; |
980cae7a | 622 | |
d2a52b27 | 623 | lookup_name = alloc_name; |
980cae7a | 624 | linkage_name_copy = alloc_name; |
2de7ced7 DJ |
625 | } |
626 | else | |
980cae7a | 627 | { |
d2a52b27 DC |
628 | lookup_len = len; |
629 | lookup_name = linkage_name; | |
980cae7a DC |
630 | linkage_name_copy = linkage_name; |
631 | } | |
2de7ced7 | 632 | |
04a679b8 TT |
633 | entry.mangled = (char *) lookup_name; |
634 | slot = ((struct demangled_name_entry **) | |
635 | htab_find_slot (objfile->demangled_names_hash, | |
636 | &entry, INSERT)); | |
2de7ced7 DJ |
637 | |
638 | /* If this name is not in the hash table, add it. */ | |
639 | if (*slot == NULL) | |
640 | { | |
980cae7a DC |
641 | char *demangled_name = symbol_find_demangled_name (gsymbol, |
642 | linkage_name_copy); | |
2de7ced7 DJ |
643 | int demangled_len = demangled_name ? strlen (demangled_name) : 0; |
644 | ||
04a679b8 TT |
645 | /* Suppose we have demangled_name==NULL, copy_name==0, and |
646 | lookup_name==linkage_name. In this case, we already have the | |
647 | mangled name saved, and we don't have a demangled name. So, | |
648 | you might think we could save a little space by not recording | |
649 | this in the hash table at all. | |
650 | ||
651 | It turns out that it is actually important to still save such | |
652 | an entry in the hash table, because storing this name gives | |
705b5767 | 653 | us better bcache hit rates for partial symbols. */ |
04a679b8 TT |
654 | if (!copy_name && lookup_name == linkage_name) |
655 | { | |
656 | *slot = obstack_alloc (&objfile->objfile_obstack, | |
657 | offsetof (struct demangled_name_entry, | |
658 | demangled) | |
659 | + demangled_len + 1); | |
660 | (*slot)->mangled = (char *) lookup_name; | |
661 | } | |
662 | else | |
663 | { | |
664 | /* If we must copy the mangled name, put it directly after | |
665 | the demangled name so we can have a single | |
666 | allocation. */ | |
667 | *slot = obstack_alloc (&objfile->objfile_obstack, | |
668 | offsetof (struct demangled_name_entry, | |
669 | demangled) | |
670 | + lookup_len + demangled_len + 2); | |
671 | (*slot)->mangled = &((*slot)->demangled[demangled_len + 1]); | |
672 | strcpy ((*slot)->mangled, lookup_name); | |
673 | } | |
674 | ||
980cae7a | 675 | if (demangled_name != NULL) |
2de7ced7 | 676 | { |
04a679b8 | 677 | strcpy ((*slot)->demangled, demangled_name); |
2de7ced7 DJ |
678 | xfree (demangled_name); |
679 | } | |
680 | else | |
04a679b8 | 681 | (*slot)->demangled[0] = '\0'; |
2de7ced7 DJ |
682 | } |
683 | ||
72dcaf82 | 684 | gsymbol->name = (*slot)->mangled + lookup_len - len; |
04a679b8 | 685 | if ((*slot)->demangled[0] != '\0') |
29df156d | 686 | symbol_set_demangled_name (gsymbol, (*slot)->demangled, objfile); |
2de7ced7 | 687 | else |
29df156d | 688 | symbol_set_demangled_name (gsymbol, NULL, objfile); |
2de7ced7 DJ |
689 | } |
690 | ||
22abf04a DC |
691 | /* Return the source code name of a symbol. In languages where |
692 | demangling is necessary, this is the demangled name. */ | |
693 | ||
694 | char * | |
695 | symbol_natural_name (const struct general_symbol_info *gsymbol) | |
696 | { | |
9af17804 | 697 | switch (gsymbol->language) |
22abf04a | 698 | { |
1f8173e6 | 699 | case language_cplus: |
6aecb9c2 | 700 | case language_d: |
1f8173e6 PH |
701 | case language_java: |
702 | case language_objc: | |
f55ee35c | 703 | case language_fortran: |
b250c185 SW |
704 | if (symbol_get_demangled_name (gsymbol) != NULL) |
705 | return symbol_get_demangled_name (gsymbol); | |
1f8173e6 PH |
706 | break; |
707 | case language_ada: | |
b250c185 SW |
708 | if (symbol_get_demangled_name (gsymbol) != NULL) |
709 | return symbol_get_demangled_name (gsymbol); | |
1f8173e6 PH |
710 | else |
711 | return ada_decode_symbol (gsymbol); | |
712 | break; | |
713 | default: | |
714 | break; | |
22abf04a | 715 | } |
1f8173e6 | 716 | return gsymbol->name; |
22abf04a DC |
717 | } |
718 | ||
9cc0d196 EZ |
719 | /* Return the demangled name for a symbol based on the language for |
720 | that symbol. If no demangled name exists, return NULL. */ | |
721 | char * | |
df8a16a1 | 722 | symbol_demangled_name (const struct general_symbol_info *gsymbol) |
9cc0d196 | 723 | { |
9af17804 | 724 | switch (gsymbol->language) |
1f8173e6 PH |
725 | { |
726 | case language_cplus: | |
6aecb9c2 | 727 | case language_d: |
1f8173e6 PH |
728 | case language_java: |
729 | case language_objc: | |
f55ee35c | 730 | case language_fortran: |
b250c185 SW |
731 | if (symbol_get_demangled_name (gsymbol) != NULL) |
732 | return symbol_get_demangled_name (gsymbol); | |
1f8173e6 PH |
733 | break; |
734 | case language_ada: | |
b250c185 SW |
735 | if (symbol_get_demangled_name (gsymbol) != NULL) |
736 | return symbol_get_demangled_name (gsymbol); | |
1f8173e6 PH |
737 | else |
738 | return ada_decode_symbol (gsymbol); | |
739 | break; | |
740 | default: | |
741 | break; | |
742 | } | |
743 | return NULL; | |
9cc0d196 | 744 | } |
fe39c653 | 745 | |
4725b721 PH |
746 | /* Return the search name of a symbol---generally the demangled or |
747 | linkage name of the symbol, depending on how it will be searched for. | |
9af17804 | 748 | If there is no distinct demangled name, then returns the same value |
4725b721 | 749 | (same pointer) as SYMBOL_LINKAGE_NAME. */ |
fc062ac6 JB |
750 | char * |
751 | symbol_search_name (const struct general_symbol_info *gsymbol) | |
752 | { | |
1f8173e6 PH |
753 | if (gsymbol->language == language_ada) |
754 | return gsymbol->name; | |
755 | else | |
756 | return symbol_natural_name (gsymbol); | |
4725b721 PH |
757 | } |
758 | ||
fe39c653 EZ |
759 | /* Initialize the structure fields to zero values. */ |
760 | void | |
761 | init_sal (struct symtab_and_line *sal) | |
762 | { | |
6c95b8df | 763 | sal->pspace = NULL; |
fe39c653 EZ |
764 | sal->symtab = 0; |
765 | sal->section = 0; | |
766 | sal->line = 0; | |
767 | sal->pc = 0; | |
768 | sal->end = 0; | |
ed0616c6 VP |
769 | sal->explicit_pc = 0; |
770 | sal->explicit_line = 0; | |
fe39c653 | 771 | } |
c906108c SS |
772 | \f |
773 | ||
94277a38 DJ |
774 | /* Return 1 if the two sections are the same, or if they could |
775 | plausibly be copies of each other, one in an original object | |
776 | file and another in a separated debug file. */ | |
777 | ||
778 | int | |
714835d5 UW |
779 | matching_obj_sections (struct obj_section *obj_first, |
780 | struct obj_section *obj_second) | |
94277a38 | 781 | { |
714835d5 UW |
782 | asection *first = obj_first? obj_first->the_bfd_section : NULL; |
783 | asection *second = obj_second? obj_second->the_bfd_section : NULL; | |
94277a38 DJ |
784 | struct objfile *obj; |
785 | ||
786 | /* If they're the same section, then they match. */ | |
787 | if (first == second) | |
788 | return 1; | |
789 | ||
790 | /* If either is NULL, give up. */ | |
791 | if (first == NULL || second == NULL) | |
792 | return 0; | |
793 | ||
794 | /* This doesn't apply to absolute symbols. */ | |
795 | if (first->owner == NULL || second->owner == NULL) | |
796 | return 0; | |
797 | ||
798 | /* If they're in the same object file, they must be different sections. */ | |
799 | if (first->owner == second->owner) | |
800 | return 0; | |
801 | ||
802 | /* Check whether the two sections are potentially corresponding. They must | |
803 | have the same size, address, and name. We can't compare section indexes, | |
804 | which would be more reliable, because some sections may have been | |
805 | stripped. */ | |
806 | if (bfd_get_section_size (first) != bfd_get_section_size (second)) | |
807 | return 0; | |
808 | ||
818f79f6 | 809 | /* In-memory addresses may start at a different offset, relativize them. */ |
94277a38 | 810 | if (bfd_get_section_vma (first->owner, first) |
818f79f6 DJ |
811 | - bfd_get_start_address (first->owner) |
812 | != bfd_get_section_vma (second->owner, second) | |
813 | - bfd_get_start_address (second->owner)) | |
94277a38 DJ |
814 | return 0; |
815 | ||
816 | if (bfd_get_section_name (first->owner, first) == NULL | |
817 | || bfd_get_section_name (second->owner, second) == NULL | |
818 | || strcmp (bfd_get_section_name (first->owner, first), | |
819 | bfd_get_section_name (second->owner, second)) != 0) | |
820 | return 0; | |
821 | ||
822 | /* Otherwise check that they are in corresponding objfiles. */ | |
823 | ||
824 | ALL_OBJFILES (obj) | |
825 | if (obj->obfd == first->owner) | |
826 | break; | |
827 | gdb_assert (obj != NULL); | |
828 | ||
829 | if (obj->separate_debug_objfile != NULL | |
830 | && obj->separate_debug_objfile->obfd == second->owner) | |
831 | return 1; | |
832 | if (obj->separate_debug_objfile_backlink != NULL | |
833 | && obj->separate_debug_objfile_backlink->obfd == second->owner) | |
834 | return 1; | |
835 | ||
836 | return 0; | |
837 | } | |
c5aa993b | 838 | |
ccefe4c4 TT |
839 | struct symtab * |
840 | find_pc_sect_symtab_via_partial (CORE_ADDR pc, struct obj_section *section) | |
c906108c | 841 | { |
52f0bd74 | 842 | struct objfile *objfile; |
8a48e967 DJ |
843 | struct minimal_symbol *msymbol; |
844 | ||
845 | /* If we know that this is not a text address, return failure. This is | |
846 | necessary because we loop based on texthigh and textlow, which do | |
847 | not include the data ranges. */ | |
848 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); | |
849 | if (msymbol | |
712f90be TT |
850 | && (MSYMBOL_TYPE (msymbol) == mst_data |
851 | || MSYMBOL_TYPE (msymbol) == mst_bss | |
852 | || MSYMBOL_TYPE (msymbol) == mst_abs | |
853 | || MSYMBOL_TYPE (msymbol) == mst_file_data | |
854 | || MSYMBOL_TYPE (msymbol) == mst_file_bss)) | |
8a48e967 | 855 | return NULL; |
c906108c | 856 | |
ff013f42 | 857 | ALL_OBJFILES (objfile) |
ccefe4c4 TT |
858 | { |
859 | struct symtab *result = NULL; | |
433759f7 | 860 | |
ccefe4c4 TT |
861 | if (objfile->sf) |
862 | result = objfile->sf->qf->find_pc_sect_symtab (objfile, msymbol, | |
863 | pc, section, 0); | |
864 | if (result) | |
865 | return result; | |
866 | } | |
ff013f42 JK |
867 | |
868 | return NULL; | |
c906108c | 869 | } |
c906108c SS |
870 | \f |
871 | /* Debug symbols usually don't have section information. We need to dig that | |
872 | out of the minimal symbols and stash that in the debug symbol. */ | |
873 | ||
ccefe4c4 | 874 | void |
907fc202 UW |
875 | fixup_section (struct general_symbol_info *ginfo, |
876 | CORE_ADDR addr, struct objfile *objfile) | |
c906108c SS |
877 | { |
878 | struct minimal_symbol *msym; | |
c906108c | 879 | |
bccdca4a UW |
880 | /* First, check whether a minimal symbol with the same name exists |
881 | and points to the same address. The address check is required | |
882 | e.g. on PowerPC64, where the minimal symbol for a function will | |
883 | point to the function descriptor, while the debug symbol will | |
884 | point to the actual function code. */ | |
907fc202 UW |
885 | msym = lookup_minimal_symbol_by_pc_name (addr, ginfo->name, objfile); |
886 | if (msym) | |
7a78d0ee | 887 | { |
714835d5 | 888 | ginfo->obj_section = SYMBOL_OBJ_SECTION (msym); |
7a78d0ee KB |
889 | ginfo->section = SYMBOL_SECTION (msym); |
890 | } | |
907fc202 | 891 | else |
19e2d14b KB |
892 | { |
893 | /* Static, function-local variables do appear in the linker | |
894 | (minimal) symbols, but are frequently given names that won't | |
895 | be found via lookup_minimal_symbol(). E.g., it has been | |
896 | observed in frv-uclinux (ELF) executables that a static, | |
897 | function-local variable named "foo" might appear in the | |
898 | linker symbols as "foo.6" or "foo.3". Thus, there is no | |
899 | point in attempting to extend the lookup-by-name mechanism to | |
900 | handle this case due to the fact that there can be multiple | |
901 | names. | |
9af17804 | 902 | |
19e2d14b KB |
903 | So, instead, search the section table when lookup by name has |
904 | failed. The ``addr'' and ``endaddr'' fields may have already | |
905 | been relocated. If so, the relocation offset (i.e. the | |
906 | ANOFFSET value) needs to be subtracted from these values when | |
907 | performing the comparison. We unconditionally subtract it, | |
908 | because, when no relocation has been performed, the ANOFFSET | |
909 | value will simply be zero. | |
9af17804 | 910 | |
19e2d14b KB |
911 | The address of the symbol whose section we're fixing up HAS |
912 | NOT BEEN adjusted (relocated) yet. It can't have been since | |
913 | the section isn't yet known and knowing the section is | |
914 | necessary in order to add the correct relocation value. In | |
915 | other words, we wouldn't even be in this function (attempting | |
916 | to compute the section) if it were already known. | |
917 | ||
918 | Note that it is possible to search the minimal symbols | |
919 | (subtracting the relocation value if necessary) to find the | |
920 | matching minimal symbol, but this is overkill and much less | |
921 | efficient. It is not necessary to find the matching minimal | |
9af17804 DE |
922 | symbol, only its section. |
923 | ||
19e2d14b KB |
924 | Note that this technique (of doing a section table search) |
925 | can fail when unrelocated section addresses overlap. For | |
926 | this reason, we still attempt a lookup by name prior to doing | |
927 | a search of the section table. */ | |
9af17804 | 928 | |
19e2d14b | 929 | struct obj_section *s; |
433759f7 | 930 | |
19e2d14b KB |
931 | ALL_OBJFILE_OSECTIONS (objfile, s) |
932 | { | |
933 | int idx = s->the_bfd_section->index; | |
934 | CORE_ADDR offset = ANOFFSET (objfile->section_offsets, idx); | |
935 | ||
f1f6aadf PA |
936 | if (obj_section_addr (s) - offset <= addr |
937 | && addr < obj_section_endaddr (s) - offset) | |
19e2d14b | 938 | { |
714835d5 | 939 | ginfo->obj_section = s; |
19e2d14b KB |
940 | ginfo->section = idx; |
941 | return; | |
942 | } | |
943 | } | |
944 | } | |
c906108c SS |
945 | } |
946 | ||
947 | struct symbol * | |
fba45db2 | 948 | fixup_symbol_section (struct symbol *sym, struct objfile *objfile) |
c906108c | 949 | { |
907fc202 UW |
950 | CORE_ADDR addr; |
951 | ||
c906108c SS |
952 | if (!sym) |
953 | return NULL; | |
954 | ||
714835d5 | 955 | if (SYMBOL_OBJ_SECTION (sym)) |
c906108c SS |
956 | return sym; |
957 | ||
907fc202 UW |
958 | /* We either have an OBJFILE, or we can get at it from the sym's |
959 | symtab. Anything else is a bug. */ | |
960 | gdb_assert (objfile || SYMBOL_SYMTAB (sym)); | |
961 | ||
962 | if (objfile == NULL) | |
963 | objfile = SYMBOL_SYMTAB (sym)->objfile; | |
964 | ||
965 | /* We should have an objfile by now. */ | |
966 | gdb_assert (objfile); | |
967 | ||
968 | switch (SYMBOL_CLASS (sym)) | |
969 | { | |
970 | case LOC_STATIC: | |
971 | case LOC_LABEL: | |
907fc202 UW |
972 | addr = SYMBOL_VALUE_ADDRESS (sym); |
973 | break; | |
974 | case LOC_BLOCK: | |
975 | addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); | |
976 | break; | |
977 | ||
978 | default: | |
979 | /* Nothing else will be listed in the minsyms -- no use looking | |
980 | it up. */ | |
981 | return sym; | |
982 | } | |
983 | ||
984 | fixup_section (&sym->ginfo, addr, objfile); | |
c906108c SS |
985 | |
986 | return sym; | |
987 | } | |
988 | ||
c906108c | 989 | /* Find the definition for a specified symbol name NAME |
176620f1 | 990 | in domain DOMAIN, visible from lexical block BLOCK. |
c906108c | 991 | Returns the struct symbol pointer, or zero if no symbol is found. |
c906108c SS |
992 | C++: if IS_A_FIELD_OF_THIS is nonzero on entry, check to see if |
993 | NAME is a field of the current implied argument `this'. If so set | |
9af17804 | 994 | *IS_A_FIELD_OF_THIS to 1, otherwise set it to zero. |
c906108c SS |
995 | BLOCK_FOUND is set to the block in which NAME is found (in the case of |
996 | a field of `this', value_of_this sets BLOCK_FOUND to the proper value.) */ | |
997 | ||
998 | /* This function has a bunch of loops in it and it would seem to be | |
999 | attractive to put in some QUIT's (though I'm not really sure | |
1000 | whether it can run long enough to be really important). But there | |
1001 | are a few calls for which it would appear to be bad news to quit | |
7ca9f392 AC |
1002 | out of here: find_proc_desc in alpha-tdep.c and mips-tdep.c. (Note |
1003 | that there is C++ code below which can error(), but that probably | |
1004 | doesn't affect these calls since they are looking for a known | |
1005 | variable and thus can probably assume it will never hit the C++ | |
1006 | code). */ | |
c906108c SS |
1007 | |
1008 | struct symbol * | |
53c5240f PA |
1009 | lookup_symbol_in_language (const char *name, const struct block *block, |
1010 | const domain_enum domain, enum language lang, | |
2570f2b7 | 1011 | int *is_a_field_of_this) |
c906108c | 1012 | { |
729051e6 DJ |
1013 | char *demangled_name = NULL; |
1014 | const char *modified_name = NULL; | |
fba7f19c | 1015 | struct symbol *returnval; |
9ee6bb93 | 1016 | struct cleanup *cleanup = make_cleanup (null_cleanup, 0); |
c906108c | 1017 | |
729051e6 DJ |
1018 | modified_name = name; |
1019 | ||
433759f7 MS |
1020 | /* If we are using C++, D, or Java, demangle the name before doing a |
1021 | lookup, so we can always binary search. */ | |
53c5240f | 1022 | if (lang == language_cplus) |
729051e6 DJ |
1023 | { |
1024 | demangled_name = cplus_demangle (name, DMGL_ANSI | DMGL_PARAMS); | |
1025 | if (demangled_name) | |
1026 | { | |
729051e6 | 1027 | modified_name = demangled_name; |
9ee6bb93 | 1028 | make_cleanup (xfree, demangled_name); |
729051e6 | 1029 | } |
71c25dea TT |
1030 | else |
1031 | { | |
1032 | /* If we were given a non-mangled name, canonicalize it | |
1033 | according to the language (so far only for C++). */ | |
1034 | demangled_name = cp_canonicalize_string (name); | |
1035 | if (demangled_name) | |
1036 | { | |
1037 | modified_name = demangled_name; | |
1038 | make_cleanup (xfree, demangled_name); | |
1039 | } | |
1040 | } | |
729051e6 | 1041 | } |
53c5240f | 1042 | else if (lang == language_java) |
987504bb | 1043 | { |
9af17804 | 1044 | demangled_name = cplus_demangle (name, |
987504bb JJ |
1045 | DMGL_ANSI | DMGL_PARAMS | DMGL_JAVA); |
1046 | if (demangled_name) | |
1047 | { | |
987504bb | 1048 | modified_name = demangled_name; |
9ee6bb93 | 1049 | make_cleanup (xfree, demangled_name); |
987504bb JJ |
1050 | } |
1051 | } | |
6aecb9c2 JB |
1052 | else if (lang == language_d) |
1053 | { | |
1054 | demangled_name = d_demangle (name, 0); | |
1055 | if (demangled_name) | |
1056 | { | |
1057 | modified_name = demangled_name; | |
1058 | make_cleanup (xfree, demangled_name); | |
1059 | } | |
1060 | } | |
729051e6 | 1061 | |
63872f9d JG |
1062 | if (case_sensitivity == case_sensitive_off) |
1063 | { | |
1064 | char *copy; | |
1065 | int len, i; | |
1066 | ||
1067 | len = strlen (name); | |
1068 | copy = (char *) alloca (len + 1); | |
1069 | for (i= 0; i < len; i++) | |
1070 | copy[i] = tolower (name[i]); | |
1071 | copy[len] = 0; | |
fba7f19c | 1072 | modified_name = copy; |
63872f9d | 1073 | } |
fba7f19c | 1074 | |
94af9270 KS |
1075 | returnval = lookup_symbol_aux (modified_name, block, domain, lang, |
1076 | is_a_field_of_this); | |
9ee6bb93 | 1077 | do_cleanups (cleanup); |
fba7f19c | 1078 | |
9af17804 | 1079 | return returnval; |
fba7f19c EZ |
1080 | } |
1081 | ||
53c5240f PA |
1082 | /* Behave like lookup_symbol_in_language, but performed with the |
1083 | current language. */ | |
1084 | ||
1085 | struct symbol * | |
1086 | lookup_symbol (const char *name, const struct block *block, | |
2570f2b7 | 1087 | domain_enum domain, int *is_a_field_of_this) |
53c5240f PA |
1088 | { |
1089 | return lookup_symbol_in_language (name, block, domain, | |
1090 | current_language->la_language, | |
2570f2b7 | 1091 | is_a_field_of_this); |
53c5240f PA |
1092 | } |
1093 | ||
1094 | /* Behave like lookup_symbol except that NAME is the natural name | |
5ad1c190 DC |
1095 | of the symbol that we're looking for and, if LINKAGE_NAME is |
1096 | non-NULL, ensure that the symbol's linkage name matches as | |
1097 | well. */ | |
1098 | ||
fba7f19c | 1099 | static struct symbol * |
94af9270 KS |
1100 | lookup_symbol_aux (const char *name, const struct block *block, |
1101 | const domain_enum domain, enum language language, | |
1102 | int *is_a_field_of_this) | |
fba7f19c | 1103 | { |
8155455b | 1104 | struct symbol *sym; |
53c5240f | 1105 | const struct language_defn *langdef; |
406bc4de | 1106 | |
9a146a11 EZ |
1107 | /* Make sure we do something sensible with is_a_field_of_this, since |
1108 | the callers that set this parameter to some non-null value will | |
1109 | certainly use it later and expect it to be either 0 or 1. | |
1110 | If we don't set it, the contents of is_a_field_of_this are | |
1111 | undefined. */ | |
1112 | if (is_a_field_of_this != NULL) | |
1113 | *is_a_field_of_this = 0; | |
1114 | ||
e4051eeb DC |
1115 | /* Search specified block and its superiors. Don't search |
1116 | STATIC_BLOCK or GLOBAL_BLOCK. */ | |
c906108c | 1117 | |
13387711 | 1118 | sym = lookup_symbol_aux_local (name, block, domain, language); |
8155455b DC |
1119 | if (sym != NULL) |
1120 | return sym; | |
c906108c | 1121 | |
53c5240f | 1122 | /* If requested to do so by the caller and if appropriate for LANGUAGE, |
13387711 | 1123 | check to see if NAME is a field of `this'. */ |
53c5240f PA |
1124 | |
1125 | langdef = language_def (language); | |
5f9a71c3 | 1126 | |
2b2d9e11 VP |
1127 | if (langdef->la_name_of_this != NULL && is_a_field_of_this != NULL |
1128 | && block != NULL) | |
c906108c | 1129 | { |
2b2d9e11 | 1130 | struct symbol *sym = NULL; |
8540c487 | 1131 | const struct block *function_block = block; |
433759f7 | 1132 | |
2b2d9e11 VP |
1133 | /* 'this' is only defined in the function's block, so find the |
1134 | enclosing function block. */ | |
8540c487 SW |
1135 | for (; function_block && !BLOCK_FUNCTION (function_block); |
1136 | function_block = BLOCK_SUPERBLOCK (function_block)); | |
2b2d9e11 | 1137 | |
8540c487 SW |
1138 | if (function_block && !dict_empty (BLOCK_DICT (function_block))) |
1139 | sym = lookup_block_symbol (function_block, langdef->la_name_of_this, | |
94af9270 | 1140 | VAR_DOMAIN); |
2b2d9e11 | 1141 | if (sym) |
c906108c | 1142 | { |
2b2d9e11 | 1143 | struct type *t = sym->type; |
9af17804 | 1144 | |
2b2d9e11 VP |
1145 | /* I'm not really sure that type of this can ever |
1146 | be typedefed; just be safe. */ | |
1147 | CHECK_TYPEDEF (t); | |
1148 | if (TYPE_CODE (t) == TYPE_CODE_PTR | |
1149 | || TYPE_CODE (t) == TYPE_CODE_REF) | |
1150 | t = TYPE_TARGET_TYPE (t); | |
9af17804 | 1151 | |
2b2d9e11 VP |
1152 | if (TYPE_CODE (t) != TYPE_CODE_STRUCT |
1153 | && TYPE_CODE (t) != TYPE_CODE_UNION) | |
9af17804 | 1154 | error (_("Internal error: `%s' is not an aggregate"), |
2b2d9e11 | 1155 | langdef->la_name_of_this); |
9af17804 | 1156 | |
2b2d9e11 VP |
1157 | if (check_field (t, name)) |
1158 | { | |
1159 | *is_a_field_of_this = 1; | |
2b2d9e11 VP |
1160 | return NULL; |
1161 | } | |
c906108c SS |
1162 | } |
1163 | } | |
1164 | ||
53c5240f | 1165 | /* Now do whatever is appropriate for LANGUAGE to look |
5f9a71c3 | 1166 | up static and global variables. */ |
c906108c | 1167 | |
94af9270 | 1168 | sym = langdef->la_lookup_symbol_nonlocal (name, block, domain); |
8155455b DC |
1169 | if (sym != NULL) |
1170 | return sym; | |
c906108c | 1171 | |
8155455b | 1172 | /* Now search all static file-level symbols. Not strictly correct, |
41f62f39 JK |
1173 | but more useful than an error. */ |
1174 | ||
1175 | return lookup_static_symbol_aux (name, domain); | |
1176 | } | |
1177 | ||
1178 | /* Search all static file-level symbols for NAME from DOMAIN. Do the symtabs | |
1179 | first, then check the psymtabs. If a psymtab indicates the existence of the | |
1180 | desired name as a file-level static, then do psymtab-to-symtab conversion on | |
1181 | the fly and return the found symbol. */ | |
1182 | ||
1183 | struct symbol * | |
1184 | lookup_static_symbol_aux (const char *name, const domain_enum domain) | |
1185 | { | |
1186 | struct objfile *objfile; | |
1187 | struct symbol *sym; | |
c906108c | 1188 | |
94af9270 | 1189 | sym = lookup_symbol_aux_symtabs (STATIC_BLOCK, name, domain); |
8155455b DC |
1190 | if (sym != NULL) |
1191 | return sym; | |
9af17804 | 1192 | |
ccefe4c4 TT |
1193 | ALL_OBJFILES (objfile) |
1194 | { | |
1195 | sym = lookup_symbol_aux_quick (objfile, STATIC_BLOCK, name, domain); | |
1196 | if (sym != NULL) | |
1197 | return sym; | |
1198 | } | |
c906108c | 1199 | |
8155455b | 1200 | return NULL; |
c906108c | 1201 | } |
8155455b | 1202 | |
e4051eeb | 1203 | /* Check to see if the symbol is defined in BLOCK or its superiors. |
89a9d1b1 | 1204 | Don't search STATIC_BLOCK or GLOBAL_BLOCK. */ |
8155455b DC |
1205 | |
1206 | static struct symbol * | |
94af9270 | 1207 | lookup_symbol_aux_local (const char *name, const struct block *block, |
13387711 SW |
1208 | const domain_enum domain, |
1209 | enum language language) | |
8155455b DC |
1210 | { |
1211 | struct symbol *sym; | |
89a9d1b1 | 1212 | const struct block *static_block = block_static_block (block); |
13387711 SW |
1213 | const char *scope = block_scope (block); |
1214 | ||
e4051eeb DC |
1215 | /* Check if either no block is specified or it's a global block. */ |
1216 | ||
89a9d1b1 DC |
1217 | if (static_block == NULL) |
1218 | return NULL; | |
e4051eeb | 1219 | |
89a9d1b1 | 1220 | while (block != static_block) |
f61e8913 | 1221 | { |
94af9270 | 1222 | sym = lookup_symbol_aux_block (name, block, domain); |
f61e8913 DC |
1223 | if (sym != NULL) |
1224 | return sym; | |
edb3359d | 1225 | |
f55ee35c | 1226 | if (language == language_cplus || language == language_fortran) |
13387711 | 1227 | { |
34eaf542 TT |
1228 | sym = cp_lookup_symbol_imports_or_template (scope, name, block, |
1229 | domain); | |
13387711 SW |
1230 | if (sym != NULL) |
1231 | return sym; | |
1232 | } | |
1233 | ||
edb3359d DJ |
1234 | if (BLOCK_FUNCTION (block) != NULL && block_inlined_p (block)) |
1235 | break; | |
f61e8913 DC |
1236 | block = BLOCK_SUPERBLOCK (block); |
1237 | } | |
1238 | ||
edb3359d | 1239 | /* We've reached the edge of the function without finding a result. */ |
e4051eeb | 1240 | |
f61e8913 DC |
1241 | return NULL; |
1242 | } | |
1243 | ||
3a40aaa0 UW |
1244 | /* Look up OBJFILE to BLOCK. */ |
1245 | ||
c0201579 | 1246 | struct objfile * |
3a40aaa0 UW |
1247 | lookup_objfile_from_block (const struct block *block) |
1248 | { | |
1249 | struct objfile *obj; | |
1250 | struct symtab *s; | |
1251 | ||
1252 | if (block == NULL) | |
1253 | return NULL; | |
1254 | ||
1255 | block = block_global_block (block); | |
1256 | /* Go through SYMTABS. */ | |
1257 | ALL_SYMTABS (obj, s) | |
1258 | if (block == BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK)) | |
61f0d762 JK |
1259 | { |
1260 | if (obj->separate_debug_objfile_backlink) | |
1261 | obj = obj->separate_debug_objfile_backlink; | |
1262 | ||
1263 | return obj; | |
1264 | } | |
3a40aaa0 UW |
1265 | |
1266 | return NULL; | |
1267 | } | |
1268 | ||
6c9353d3 PA |
1269 | /* Look up a symbol in a block; if found, fixup the symbol, and set |
1270 | block_found appropriately. */ | |
f61e8913 | 1271 | |
5f9a71c3 | 1272 | struct symbol * |
94af9270 | 1273 | lookup_symbol_aux_block (const char *name, const struct block *block, |
21b556f4 | 1274 | const domain_enum domain) |
f61e8913 DC |
1275 | { |
1276 | struct symbol *sym; | |
f61e8913 | 1277 | |
94af9270 | 1278 | sym = lookup_block_symbol (block, name, domain); |
f61e8913 | 1279 | if (sym) |
8155455b | 1280 | { |
f61e8913 | 1281 | block_found = block; |
21b556f4 | 1282 | return fixup_symbol_section (sym, NULL); |
8155455b DC |
1283 | } |
1284 | ||
1285 | return NULL; | |
1286 | } | |
1287 | ||
3a40aaa0 UW |
1288 | /* Check all global symbols in OBJFILE in symtabs and |
1289 | psymtabs. */ | |
1290 | ||
1291 | struct symbol * | |
15d123c9 | 1292 | lookup_global_symbol_from_objfile (const struct objfile *main_objfile, |
3a40aaa0 | 1293 | const char *name, |
21b556f4 | 1294 | const domain_enum domain) |
3a40aaa0 | 1295 | { |
15d123c9 | 1296 | const struct objfile *objfile; |
3a40aaa0 UW |
1297 | struct symbol *sym; |
1298 | struct blockvector *bv; | |
1299 | const struct block *block; | |
1300 | struct symtab *s; | |
3a40aaa0 | 1301 | |
15d123c9 TG |
1302 | for (objfile = main_objfile; |
1303 | objfile; | |
1304 | objfile = objfile_separate_debug_iterate (main_objfile, objfile)) | |
1305 | { | |
1306 | /* Go through symtabs. */ | |
1307 | ALL_OBJFILE_SYMTABS (objfile, s) | |
1308 | { | |
1309 | bv = BLOCKVECTOR (s); | |
1310 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
94af9270 | 1311 | sym = lookup_block_symbol (block, name, domain); |
15d123c9 TG |
1312 | if (sym) |
1313 | { | |
1314 | block_found = block; | |
1315 | return fixup_symbol_section (sym, (struct objfile *)objfile); | |
1316 | } | |
1317 | } | |
1318 | ||
ccefe4c4 TT |
1319 | sym = lookup_symbol_aux_quick ((struct objfile *) objfile, GLOBAL_BLOCK, |
1320 | name, domain); | |
1321 | if (sym) | |
1322 | return sym; | |
15d123c9 | 1323 | } |
56e3f43c | 1324 | |
3a40aaa0 UW |
1325 | return NULL; |
1326 | } | |
1327 | ||
8155455b DC |
1328 | /* Check to see if the symbol is defined in one of the symtabs. |
1329 | BLOCK_INDEX should be either GLOBAL_BLOCK or STATIC_BLOCK, | |
1330 | depending on whether or not we want to search global symbols or | |
1331 | static symbols. */ | |
1332 | ||
1333 | static struct symbol * | |
94af9270 | 1334 | lookup_symbol_aux_symtabs (int block_index, const char *name, |
21b556f4 | 1335 | const domain_enum domain) |
8155455b DC |
1336 | { |
1337 | struct symbol *sym; | |
1338 | struct objfile *objfile; | |
1339 | struct blockvector *bv; | |
1340 | const struct block *block; | |
1341 | struct symtab *s; | |
1342 | ||
58b6ab13 | 1343 | ALL_OBJFILES (objfile) |
8155455b | 1344 | { |
58b6ab13 TT |
1345 | if (objfile->sf) |
1346 | objfile->sf->qf->pre_expand_symtabs_matching (objfile, | |
1347 | block_index, | |
1348 | name, domain); | |
1349 | ||
1350 | ALL_OBJFILE_SYMTABS (objfile, s) | |
1351 | if (s->primary) | |
1352 | { | |
1353 | bv = BLOCKVECTOR (s); | |
1354 | block = BLOCKVECTOR_BLOCK (bv, block_index); | |
1355 | sym = lookup_block_symbol (block, name, domain); | |
1356 | if (sym) | |
1357 | { | |
1358 | block_found = block; | |
1359 | return fixup_symbol_section (sym, objfile); | |
1360 | } | |
1361 | } | |
8155455b DC |
1362 | } |
1363 | ||
1364 | return NULL; | |
1365 | } | |
1366 | ||
ccefe4c4 TT |
1367 | /* A helper function for lookup_symbol_aux that interfaces with the |
1368 | "quick" symbol table functions. */ | |
8155455b DC |
1369 | |
1370 | static struct symbol * | |
ccefe4c4 TT |
1371 | lookup_symbol_aux_quick (struct objfile *objfile, int kind, |
1372 | const char *name, const domain_enum domain) | |
8155455b | 1373 | { |
ccefe4c4 | 1374 | struct symtab *symtab; |
8155455b DC |
1375 | struct blockvector *bv; |
1376 | const struct block *block; | |
ccefe4c4 | 1377 | struct symbol *sym; |
8155455b | 1378 | |
ccefe4c4 TT |
1379 | if (!objfile->sf) |
1380 | return NULL; | |
1381 | symtab = objfile->sf->qf->lookup_symbol (objfile, kind, name, domain); | |
1382 | if (!symtab) | |
1383 | return NULL; | |
8155455b | 1384 | |
ccefe4c4 TT |
1385 | bv = BLOCKVECTOR (symtab); |
1386 | block = BLOCKVECTOR_BLOCK (bv, kind); | |
1387 | sym = lookup_block_symbol (block, name, domain); | |
1388 | if (!sym) | |
1389 | { | |
1390 | /* This shouldn't be necessary, but as a last resort try | |
1391 | looking in the statics even though the psymtab claimed | |
1392 | the symbol was global, or vice-versa. It's possible | |
1393 | that the psymtab gets it wrong in some cases. */ | |
1394 | ||
1395 | /* FIXME: carlton/2002-09-30: Should we really do that? | |
1396 | If that happens, isn't it likely to be a GDB error, in | |
1397 | which case we should fix the GDB error rather than | |
1398 | silently dealing with it here? So I'd vote for | |
1399 | removing the check for the symbol in the other | |
1400 | block. */ | |
1401 | block = BLOCKVECTOR_BLOCK (bv, | |
1402 | kind == GLOBAL_BLOCK ? | |
1403 | STATIC_BLOCK : GLOBAL_BLOCK); | |
1404 | sym = lookup_block_symbol (block, name, domain); | |
1405 | if (!sym) | |
1406 | error (_("Internal: %s symbol `%s' found in %s psymtab but not in symtab.\n%s may be an inlined function, or may be a template function\n(if a template, try specifying an instantiation: %s<type>)."), | |
1407 | kind == GLOBAL_BLOCK ? "global" : "static", | |
1408 | name, symtab->filename, name, name); | |
1409 | } | |
1410 | return fixup_symbol_section (sym, objfile); | |
8155455b DC |
1411 | } |
1412 | ||
5f9a71c3 DC |
1413 | /* A default version of lookup_symbol_nonlocal for use by languages |
1414 | that can't think of anything better to do. This implements the C | |
1415 | lookup rules. */ | |
1416 | ||
1417 | struct symbol * | |
1418 | basic_lookup_symbol_nonlocal (const char *name, | |
5f9a71c3 | 1419 | const struct block *block, |
21b556f4 | 1420 | const domain_enum domain) |
5f9a71c3 DC |
1421 | { |
1422 | struct symbol *sym; | |
1423 | ||
1424 | /* NOTE: carlton/2003-05-19: The comments below were written when | |
1425 | this (or what turned into this) was part of lookup_symbol_aux; | |
1426 | I'm much less worried about these questions now, since these | |
1427 | decisions have turned out well, but I leave these comments here | |
1428 | for posterity. */ | |
1429 | ||
1430 | /* NOTE: carlton/2002-12-05: There is a question as to whether or | |
1431 | not it would be appropriate to search the current global block | |
1432 | here as well. (That's what this code used to do before the | |
1433 | is_a_field_of_this check was moved up.) On the one hand, it's | |
1434 | redundant with the lookup_symbol_aux_symtabs search that happens | |
1435 | next. On the other hand, if decode_line_1 is passed an argument | |
1436 | like filename:var, then the user presumably wants 'var' to be | |
1437 | searched for in filename. On the third hand, there shouldn't be | |
1438 | multiple global variables all of which are named 'var', and it's | |
1439 | not like decode_line_1 has ever restricted its search to only | |
1440 | global variables in a single filename. All in all, only | |
1441 | searching the static block here seems best: it's correct and it's | |
1442 | cleanest. */ | |
1443 | ||
1444 | /* NOTE: carlton/2002-12-05: There's also a possible performance | |
1445 | issue here: if you usually search for global symbols in the | |
1446 | current file, then it would be slightly better to search the | |
1447 | current global block before searching all the symtabs. But there | |
1448 | are other factors that have a much greater effect on performance | |
1449 | than that one, so I don't think we should worry about that for | |
1450 | now. */ | |
1451 | ||
94af9270 | 1452 | sym = lookup_symbol_static (name, block, domain); |
5f9a71c3 DC |
1453 | if (sym != NULL) |
1454 | return sym; | |
1455 | ||
94af9270 | 1456 | return lookup_symbol_global (name, block, domain); |
5f9a71c3 DC |
1457 | } |
1458 | ||
1459 | /* Lookup a symbol in the static block associated to BLOCK, if there | |
1460 | is one; do nothing if BLOCK is NULL or a global block. */ | |
1461 | ||
1462 | struct symbol * | |
1463 | lookup_symbol_static (const char *name, | |
5f9a71c3 | 1464 | const struct block *block, |
21b556f4 | 1465 | const domain_enum domain) |
5f9a71c3 DC |
1466 | { |
1467 | const struct block *static_block = block_static_block (block); | |
1468 | ||
1469 | if (static_block != NULL) | |
94af9270 | 1470 | return lookup_symbol_aux_block (name, static_block, domain); |
5f9a71c3 DC |
1471 | else |
1472 | return NULL; | |
1473 | } | |
1474 | ||
1475 | /* Lookup a symbol in all files' global blocks (searching psymtabs if | |
1476 | necessary). */ | |
1477 | ||
1478 | struct symbol * | |
1479 | lookup_symbol_global (const char *name, | |
3a40aaa0 | 1480 | const struct block *block, |
21b556f4 | 1481 | const domain_enum domain) |
5f9a71c3 | 1482 | { |
3a40aaa0 UW |
1483 | struct symbol *sym = NULL; |
1484 | struct objfile *objfile = NULL; | |
1485 | ||
1486 | /* Call library-specific lookup procedure. */ | |
1487 | objfile = lookup_objfile_from_block (block); | |
1488 | if (objfile != NULL) | |
94af9270 | 1489 | sym = solib_global_lookup (objfile, name, domain); |
3a40aaa0 UW |
1490 | if (sym != NULL) |
1491 | return sym; | |
5f9a71c3 | 1492 | |
94af9270 | 1493 | sym = lookup_symbol_aux_symtabs (GLOBAL_BLOCK, name, domain); |
5f9a71c3 DC |
1494 | if (sym != NULL) |
1495 | return sym; | |
1496 | ||
ccefe4c4 TT |
1497 | ALL_OBJFILES (objfile) |
1498 | { | |
1499 | sym = lookup_symbol_aux_quick (objfile, GLOBAL_BLOCK, name, domain); | |
1500 | if (sym) | |
1501 | return sym; | |
1502 | } | |
1503 | ||
1504 | return NULL; | |
5f9a71c3 DC |
1505 | } |
1506 | ||
5eeb2539 | 1507 | int |
9af17804 | 1508 | symbol_matches_domain (enum language symbol_language, |
5eeb2539 AR |
1509 | domain_enum symbol_domain, |
1510 | domain_enum domain) | |
1511 | { | |
9af17804 | 1512 | /* For C++ "struct foo { ... }" also defines a typedef for "foo". |
5eeb2539 AR |
1513 | A Java class declaration also defines a typedef for the class. |
1514 | Similarly, any Ada type declaration implicitly defines a typedef. */ | |
1515 | if (symbol_language == language_cplus | |
6aecb9c2 | 1516 | || symbol_language == language_d |
5eeb2539 AR |
1517 | || symbol_language == language_java |
1518 | || symbol_language == language_ada) | |
1519 | { | |
1520 | if ((domain == VAR_DOMAIN || domain == STRUCT_DOMAIN) | |
1521 | && symbol_domain == STRUCT_DOMAIN) | |
1522 | return 1; | |
1523 | } | |
1524 | /* For all other languages, strict match is required. */ | |
1525 | return (symbol_domain == domain); | |
1526 | } | |
1527 | ||
ccefe4c4 TT |
1528 | /* Look up a type named NAME in the struct_domain. The type returned |
1529 | must not be opaque -- i.e., must have at least one field | |
1530 | defined. */ | |
c906108c | 1531 | |
ccefe4c4 TT |
1532 | struct type * |
1533 | lookup_transparent_type (const char *name) | |
c906108c | 1534 | { |
ccefe4c4 TT |
1535 | return current_language->la_lookup_transparent_type (name); |
1536 | } | |
9af17804 | 1537 | |
ccefe4c4 TT |
1538 | /* A helper for basic_lookup_transparent_type that interfaces with the |
1539 | "quick" symbol table functions. */ | |
357e46e7 | 1540 | |
ccefe4c4 TT |
1541 | static struct type * |
1542 | basic_lookup_transparent_type_quick (struct objfile *objfile, int kind, | |
1543 | const char *name) | |
1544 | { | |
1545 | struct symtab *symtab; | |
1546 | struct blockvector *bv; | |
1547 | struct block *block; | |
1548 | struct symbol *sym; | |
c906108c | 1549 | |
ccefe4c4 TT |
1550 | if (!objfile->sf) |
1551 | return NULL; | |
1552 | symtab = objfile->sf->qf->lookup_symbol (objfile, kind, name, STRUCT_DOMAIN); | |
1553 | if (!symtab) | |
1554 | return NULL; | |
c906108c | 1555 | |
ccefe4c4 TT |
1556 | bv = BLOCKVECTOR (symtab); |
1557 | block = BLOCKVECTOR_BLOCK (bv, kind); | |
1558 | sym = lookup_block_symbol (block, name, STRUCT_DOMAIN); | |
1559 | if (!sym) | |
9af17804 | 1560 | { |
ccefe4c4 TT |
1561 | int other_kind = kind == GLOBAL_BLOCK ? STATIC_BLOCK : GLOBAL_BLOCK; |
1562 | ||
1563 | /* This shouldn't be necessary, but as a last resort | |
1564 | * try looking in the 'other kind' even though the psymtab | |
1565 | * claimed the symbol was one thing. It's possible that | |
1566 | * the psymtab gets it wrong in some cases. | |
1567 | */ | |
1568 | block = BLOCKVECTOR_BLOCK (bv, other_kind); | |
1569 | sym = lookup_block_symbol (block, name, STRUCT_DOMAIN); | |
1570 | if (!sym) | |
1571 | /* FIXME; error is wrong in one case */ | |
1572 | error (_("Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\ | |
1573 | %s may be an inlined function, or may be a template function\n\ | |
1574 | (if a template, try specifying an instantiation: %s<type>)."), | |
1575 | name, symtab->filename, name, name); | |
c906108c | 1576 | } |
ccefe4c4 TT |
1577 | if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))) |
1578 | return SYMBOL_TYPE (sym); | |
c906108c | 1579 | |
ccefe4c4 | 1580 | return NULL; |
b368761e | 1581 | } |
c906108c | 1582 | |
b368761e DC |
1583 | /* The standard implementation of lookup_transparent_type. This code |
1584 | was modeled on lookup_symbol -- the parts not relevant to looking | |
1585 | up types were just left out. In particular it's assumed here that | |
1586 | types are available in struct_domain and only at file-static or | |
1587 | global blocks. */ | |
c906108c SS |
1588 | |
1589 | struct type * | |
b368761e | 1590 | basic_lookup_transparent_type (const char *name) |
c906108c | 1591 | { |
52f0bd74 AC |
1592 | struct symbol *sym; |
1593 | struct symtab *s = NULL; | |
c906108c | 1594 | struct blockvector *bv; |
52f0bd74 AC |
1595 | struct objfile *objfile; |
1596 | struct block *block; | |
ccefe4c4 | 1597 | struct type *t; |
c906108c SS |
1598 | |
1599 | /* Now search all the global symbols. Do the symtab's first, then | |
1600 | check the psymtab's. If a psymtab indicates the existence | |
1601 | of the desired name as a global, then do psymtab-to-symtab | |
1602 | conversion on the fly and return the found symbol. */ | |
c5aa993b | 1603 | |
58b6ab13 | 1604 | ALL_OBJFILES (objfile) |
c5aa993b | 1605 | { |
58b6ab13 TT |
1606 | if (objfile->sf) |
1607 | objfile->sf->qf->pre_expand_symtabs_matching (objfile, | |
1608 | GLOBAL_BLOCK, | |
1609 | name, STRUCT_DOMAIN); | |
1610 | ||
1611 | ALL_OBJFILE_SYMTABS (objfile, s) | |
1612 | if (s->primary) | |
1613 | { | |
1614 | bv = BLOCKVECTOR (s); | |
1615 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
1616 | sym = lookup_block_symbol (block, name, STRUCT_DOMAIN); | |
1617 | if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))) | |
1618 | { | |
1619 | return SYMBOL_TYPE (sym); | |
1620 | } | |
1621 | } | |
c5aa993b | 1622 | } |
c906108c | 1623 | |
ccefe4c4 | 1624 | ALL_OBJFILES (objfile) |
c5aa993b | 1625 | { |
ccefe4c4 TT |
1626 | t = basic_lookup_transparent_type_quick (objfile, GLOBAL_BLOCK, name); |
1627 | if (t) | |
1628 | return t; | |
c5aa993b | 1629 | } |
c906108c SS |
1630 | |
1631 | /* Now search the static file-level symbols. | |
1632 | Not strictly correct, but more useful than an error. | |
1633 | Do the symtab's first, then | |
1634 | check the psymtab's. If a psymtab indicates the existence | |
1635 | of the desired name as a file-level static, then do psymtab-to-symtab | |
1636 | conversion on the fly and return the found symbol. | |
1637 | */ | |
1638 | ||
54ec275a | 1639 | ALL_OBJFILES (objfile) |
c5aa993b | 1640 | { |
54ec275a KS |
1641 | if (objfile->sf) |
1642 | objfile->sf->qf->pre_expand_symtabs_matching (objfile, STATIC_BLOCK, | |
1643 | name, STRUCT_DOMAIN); | |
1644 | ||
1645 | ALL_OBJFILE_SYMTABS (objfile, s) | |
c5aa993b | 1646 | { |
54ec275a KS |
1647 | bv = BLOCKVECTOR (s); |
1648 | block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
1649 | sym = lookup_block_symbol (block, name, STRUCT_DOMAIN); | |
1650 | if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))) | |
1651 | { | |
1652 | return SYMBOL_TYPE (sym); | |
1653 | } | |
c5aa993b JM |
1654 | } |
1655 | } | |
c906108c | 1656 | |
ccefe4c4 | 1657 | ALL_OBJFILES (objfile) |
c5aa993b | 1658 | { |
ccefe4c4 TT |
1659 | t = basic_lookup_transparent_type_quick (objfile, STATIC_BLOCK, name); |
1660 | if (t) | |
1661 | return t; | |
c5aa993b | 1662 | } |
ccefe4c4 | 1663 | |
c906108c SS |
1664 | return (struct type *) 0; |
1665 | } | |
1666 | ||
1667 | ||
ccefe4c4 | 1668 | /* Find the name of the file containing main(). */ |
c906108c SS |
1669 | /* FIXME: What about languages without main() or specially linked |
1670 | executables that have no main() ? */ | |
1671 | ||
dd786858 | 1672 | const char * |
ccefe4c4 | 1673 | find_main_filename (void) |
c906108c | 1674 | { |
52f0bd74 | 1675 | struct objfile *objfile; |
dd786858 | 1676 | char *name = main_name (); |
c906108c | 1677 | |
ccefe4c4 | 1678 | ALL_OBJFILES (objfile) |
c5aa993b | 1679 | { |
dd786858 TT |
1680 | const char *result; |
1681 | ||
ccefe4c4 TT |
1682 | if (!objfile->sf) |
1683 | continue; | |
1684 | result = objfile->sf->qf->find_symbol_file (objfile, name); | |
1685 | if (result) | |
1686 | return result; | |
c5aa993b | 1687 | } |
c906108c SS |
1688 | return (NULL); |
1689 | } | |
1690 | ||
176620f1 | 1691 | /* Search BLOCK for symbol NAME in DOMAIN. |
c906108c SS |
1692 | |
1693 | Note that if NAME is the demangled form of a C++ symbol, we will fail | |
1694 | to find a match during the binary search of the non-encoded names, but | |
1695 | for now we don't worry about the slight inefficiency of looking for | |
1696 | a match we'll never find, since it will go pretty quick. Once the | |
1697 | binary search terminates, we drop through and do a straight linear | |
1bae87b9 | 1698 | search on the symbols. Each symbol which is marked as being a ObjC/C++ |
9af17804 | 1699 | symbol (language_cplus or language_objc set) has both the encoded and |
1bae87b9 | 1700 | non-encoded names tested for a match. |
3121eff0 | 1701 | */ |
c906108c SS |
1702 | |
1703 | struct symbol * | |
aa1ee363 | 1704 | lookup_block_symbol (const struct block *block, const char *name, |
176620f1 | 1705 | const domain_enum domain) |
c906108c | 1706 | { |
de4f826b DC |
1707 | struct dict_iterator iter; |
1708 | struct symbol *sym; | |
c906108c | 1709 | |
de4f826b | 1710 | if (!BLOCK_FUNCTION (block)) |
261397f8 | 1711 | { |
de4f826b DC |
1712 | for (sym = dict_iter_name_first (BLOCK_DICT (block), name, &iter); |
1713 | sym != NULL; | |
1714 | sym = dict_iter_name_next (name, &iter)) | |
261397f8 | 1715 | { |
5eeb2539 | 1716 | if (symbol_matches_domain (SYMBOL_LANGUAGE (sym), |
94af9270 | 1717 | SYMBOL_DOMAIN (sym), domain)) |
261397f8 DJ |
1718 | return sym; |
1719 | } | |
1720 | return NULL; | |
1721 | } | |
526e70c0 | 1722 | else |
c906108c | 1723 | { |
526e70c0 DC |
1724 | /* Note that parameter symbols do not always show up last in the |
1725 | list; this loop makes sure to take anything else other than | |
1726 | parameter symbols first; it only uses parameter symbols as a | |
1727 | last resort. Note that this only takes up extra computation | |
1728 | time on a match. */ | |
de4f826b DC |
1729 | |
1730 | struct symbol *sym_found = NULL; | |
1731 | ||
1732 | for (sym = dict_iter_name_first (BLOCK_DICT (block), name, &iter); | |
1733 | sym != NULL; | |
1734 | sym = dict_iter_name_next (name, &iter)) | |
c906108c | 1735 | { |
5eeb2539 | 1736 | if (symbol_matches_domain (SYMBOL_LANGUAGE (sym), |
94af9270 | 1737 | SYMBOL_DOMAIN (sym), domain)) |
c906108c | 1738 | { |
c906108c | 1739 | sym_found = sym; |
2a2d4dc3 | 1740 | if (!SYMBOL_IS_ARGUMENT (sym)) |
c906108c SS |
1741 | { |
1742 | break; | |
1743 | } | |
1744 | } | |
c906108c | 1745 | } |
de4f826b | 1746 | return (sym_found); /* Will be NULL if not found. */ |
c906108c | 1747 | } |
c906108c SS |
1748 | } |
1749 | ||
c906108c SS |
1750 | /* Find the symtab associated with PC and SECTION. Look through the |
1751 | psymtabs and read in another symtab if necessary. */ | |
1752 | ||
1753 | struct symtab * | |
714835d5 | 1754 | find_pc_sect_symtab (CORE_ADDR pc, struct obj_section *section) |
c906108c | 1755 | { |
52f0bd74 | 1756 | struct block *b; |
c906108c | 1757 | struct blockvector *bv; |
52f0bd74 AC |
1758 | struct symtab *s = NULL; |
1759 | struct symtab *best_s = NULL; | |
52f0bd74 | 1760 | struct objfile *objfile; |
6c95b8df | 1761 | struct program_space *pspace; |
c906108c | 1762 | CORE_ADDR distance = 0; |
8a48e967 DJ |
1763 | struct minimal_symbol *msymbol; |
1764 | ||
6c95b8df PA |
1765 | pspace = current_program_space; |
1766 | ||
8a48e967 DJ |
1767 | /* If we know that this is not a text address, return failure. This is |
1768 | necessary because we loop based on the block's high and low code | |
1769 | addresses, which do not include the data ranges, and because | |
1770 | we call find_pc_sect_psymtab which has a similar restriction based | |
1771 | on the partial_symtab's texthigh and textlow. */ | |
1772 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); | |
1773 | if (msymbol | |
712f90be TT |
1774 | && (MSYMBOL_TYPE (msymbol) == mst_data |
1775 | || MSYMBOL_TYPE (msymbol) == mst_bss | |
1776 | || MSYMBOL_TYPE (msymbol) == mst_abs | |
1777 | || MSYMBOL_TYPE (msymbol) == mst_file_data | |
1778 | || MSYMBOL_TYPE (msymbol) == mst_file_bss)) | |
8a48e967 | 1779 | return NULL; |
c906108c SS |
1780 | |
1781 | /* Search all symtabs for the one whose file contains our address, and which | |
1782 | is the smallest of all the ones containing the address. This is designed | |
1783 | to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000 | |
1784 | and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from | |
1785 | 0x1000-0x4000, but for address 0x2345 we want to return symtab b. | |
1786 | ||
1787 | This happens for native ecoff format, where code from included files | |
1788 | gets its own symtab. The symtab for the included file should have | |
1789 | been read in already via the dependency mechanism. | |
1790 | It might be swifter to create several symtabs with the same name | |
1791 | like xcoff does (I'm not sure). | |
1792 | ||
1793 | It also happens for objfiles that have their functions reordered. | |
1794 | For these, the symtab we are looking for is not necessarily read in. */ | |
1795 | ||
11309657 | 1796 | ALL_PRIMARY_SYMTABS (objfile, s) |
c5aa993b JM |
1797 | { |
1798 | bv = BLOCKVECTOR (s); | |
1799 | b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
c906108c | 1800 | |
c5aa993b | 1801 | if (BLOCK_START (b) <= pc |
c5aa993b | 1802 | && BLOCK_END (b) > pc |
c5aa993b JM |
1803 | && (distance == 0 |
1804 | || BLOCK_END (b) - BLOCK_START (b) < distance)) | |
1805 | { | |
1806 | /* For an objfile that has its functions reordered, | |
1807 | find_pc_psymtab will find the proper partial symbol table | |
1808 | and we simply return its corresponding symtab. */ | |
1809 | /* In order to better support objfiles that contain both | |
1810 | stabs and coff debugging info, we continue on if a psymtab | |
1811 | can't be found. */ | |
ccefe4c4 | 1812 | if ((objfile->flags & OBJF_REORDERED) && objfile->sf) |
c5aa993b | 1813 | { |
ccefe4c4 | 1814 | struct symtab *result; |
433759f7 | 1815 | |
ccefe4c4 TT |
1816 | result |
1817 | = objfile->sf->qf->find_pc_sect_symtab (objfile, | |
1818 | msymbol, | |
1819 | pc, section, | |
1820 | 0); | |
1821 | if (result) | |
1822 | return result; | |
c5aa993b JM |
1823 | } |
1824 | if (section != 0) | |
1825 | { | |
de4f826b | 1826 | struct dict_iterator iter; |
261397f8 | 1827 | struct symbol *sym = NULL; |
c906108c | 1828 | |
de4f826b | 1829 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c5aa993b | 1830 | { |
261397f8 | 1831 | fixup_symbol_section (sym, objfile); |
714835d5 | 1832 | if (matching_obj_sections (SYMBOL_OBJ_SECTION (sym), section)) |
c5aa993b JM |
1833 | break; |
1834 | } | |
de4f826b | 1835 | if (sym == NULL) |
c5aa993b JM |
1836 | continue; /* no symbol in this symtab matches section */ |
1837 | } | |
1838 | distance = BLOCK_END (b) - BLOCK_START (b); | |
1839 | best_s = s; | |
1840 | } | |
1841 | } | |
c906108c SS |
1842 | |
1843 | if (best_s != NULL) | |
c5aa993b | 1844 | return (best_s); |
c906108c | 1845 | |
ccefe4c4 TT |
1846 | ALL_OBJFILES (objfile) |
1847 | { | |
1848 | struct symtab *result; | |
433759f7 | 1849 | |
ccefe4c4 TT |
1850 | if (!objfile->sf) |
1851 | continue; | |
1852 | result = objfile->sf->qf->find_pc_sect_symtab (objfile, | |
1853 | msymbol, | |
1854 | pc, section, | |
1855 | 1); | |
1856 | if (result) | |
1857 | return result; | |
1858 | } | |
1859 | ||
1860 | return NULL; | |
c906108c SS |
1861 | } |
1862 | ||
1863 | /* Find the symtab associated with PC. Look through the psymtabs and | |
1864 | read in another symtab if necessary. Backward compatibility, no section */ | |
1865 | ||
1866 | struct symtab * | |
fba45db2 | 1867 | find_pc_symtab (CORE_ADDR pc) |
c906108c SS |
1868 | { |
1869 | return find_pc_sect_symtab (pc, find_pc_mapped_section (pc)); | |
1870 | } | |
c906108c | 1871 | \f |
c5aa993b | 1872 | |
7e73cedf | 1873 | /* Find the source file and line number for a given PC value and SECTION. |
c906108c SS |
1874 | Return a structure containing a symtab pointer, a line number, |
1875 | and a pc range for the entire source line. | |
1876 | The value's .pc field is NOT the specified pc. | |
1877 | NOTCURRENT nonzero means, if specified pc is on a line boundary, | |
1878 | use the line that ends there. Otherwise, in that case, the line | |
1879 | that begins there is used. */ | |
1880 | ||
1881 | /* The big complication here is that a line may start in one file, and end just | |
1882 | before the start of another file. This usually occurs when you #include | |
1883 | code in the middle of a subroutine. To properly find the end of a line's PC | |
1884 | range, we must search all symtabs associated with this compilation unit, and | |
1885 | find the one whose first PC is closer than that of the next line in this | |
1886 | symtab. */ | |
1887 | ||
1888 | /* If it's worth the effort, we could be using a binary search. */ | |
1889 | ||
1890 | struct symtab_and_line | |
714835d5 | 1891 | find_pc_sect_line (CORE_ADDR pc, struct obj_section *section, int notcurrent) |
c906108c SS |
1892 | { |
1893 | struct symtab *s; | |
52f0bd74 AC |
1894 | struct linetable *l; |
1895 | int len; | |
1896 | int i; | |
1897 | struct linetable_entry *item; | |
c906108c SS |
1898 | struct symtab_and_line val; |
1899 | struct blockvector *bv; | |
1900 | struct minimal_symbol *msymbol; | |
1901 | struct minimal_symbol *mfunsym; | |
1902 | ||
1903 | /* Info on best line seen so far, and where it starts, and its file. */ | |
1904 | ||
1905 | struct linetable_entry *best = NULL; | |
1906 | CORE_ADDR best_end = 0; | |
1907 | struct symtab *best_symtab = 0; | |
1908 | ||
1909 | /* Store here the first line number | |
1910 | of a file which contains the line at the smallest pc after PC. | |
1911 | If we don't find a line whose range contains PC, | |
1912 | we will use a line one less than this, | |
1913 | with a range from the start of that file to the first line's pc. */ | |
1914 | struct linetable_entry *alt = NULL; | |
1915 | struct symtab *alt_symtab = 0; | |
1916 | ||
1917 | /* Info on best line seen in this file. */ | |
1918 | ||
1919 | struct linetable_entry *prev; | |
1920 | ||
1921 | /* If this pc is not from the current frame, | |
1922 | it is the address of the end of a call instruction. | |
1923 | Quite likely that is the start of the following statement. | |
1924 | But what we want is the statement containing the instruction. | |
1925 | Fudge the pc to make sure we get that. */ | |
1926 | ||
fe39c653 | 1927 | init_sal (&val); /* initialize to zeroes */ |
c906108c | 1928 | |
6c95b8df PA |
1929 | val.pspace = current_program_space; |
1930 | ||
b77b1eb7 JB |
1931 | /* It's tempting to assume that, if we can't find debugging info for |
1932 | any function enclosing PC, that we shouldn't search for line | |
1933 | number info, either. However, GAS can emit line number info for | |
1934 | assembly files --- very helpful when debugging hand-written | |
1935 | assembly code. In such a case, we'd have no debug info for the | |
1936 | function, but we would have line info. */ | |
648f4f79 | 1937 | |
c906108c SS |
1938 | if (notcurrent) |
1939 | pc -= 1; | |
1940 | ||
c5aa993b | 1941 | /* elz: added this because this function returned the wrong |
c906108c SS |
1942 | information if the pc belongs to a stub (import/export) |
1943 | to call a shlib function. This stub would be anywhere between | |
9af17804 DE |
1944 | two functions in the target, and the line info was erroneously |
1945 | taken to be the one of the line before the pc. | |
c5aa993b | 1946 | */ |
c906108c | 1947 | /* RT: Further explanation: |
c5aa993b | 1948 | |
c906108c SS |
1949 | * We have stubs (trampolines) inserted between procedures. |
1950 | * | |
1951 | * Example: "shr1" exists in a shared library, and a "shr1" stub also | |
1952 | * exists in the main image. | |
1953 | * | |
1954 | * In the minimal symbol table, we have a bunch of symbols | |
1955 | * sorted by start address. The stubs are marked as "trampoline", | |
1956 | * the others appear as text. E.g.: | |
1957 | * | |
9af17804 | 1958 | * Minimal symbol table for main image |
c906108c SS |
1959 | * main: code for main (text symbol) |
1960 | * shr1: stub (trampoline symbol) | |
1961 | * foo: code for foo (text symbol) | |
1962 | * ... | |
1963 | * Minimal symbol table for "shr1" image: | |
1964 | * ... | |
1965 | * shr1: code for shr1 (text symbol) | |
1966 | * ... | |
1967 | * | |
1968 | * So the code below is trying to detect if we are in the stub | |
1969 | * ("shr1" stub), and if so, find the real code ("shr1" trampoline), | |
1970 | * and if found, do the symbolization from the real-code address | |
1971 | * rather than the stub address. | |
1972 | * | |
1973 | * Assumptions being made about the minimal symbol table: | |
1974 | * 1. lookup_minimal_symbol_by_pc() will return a trampoline only | |
1975 | * if we're really in the trampoline. If we're beyond it (say | |
9af17804 | 1976 | * we're in "foo" in the above example), it'll have a closer |
c906108c SS |
1977 | * symbol (the "foo" text symbol for example) and will not |
1978 | * return the trampoline. | |
1979 | * 2. lookup_minimal_symbol_text() will find a real text symbol | |
1980 | * corresponding to the trampoline, and whose address will | |
1981 | * be different than the trampoline address. I put in a sanity | |
1982 | * check for the address being the same, to avoid an | |
1983 | * infinite recursion. | |
1984 | */ | |
c5aa993b JM |
1985 | msymbol = lookup_minimal_symbol_by_pc (pc); |
1986 | if (msymbol != NULL) | |
c906108c | 1987 | if (MSYMBOL_TYPE (msymbol) == mst_solib_trampoline) |
c5aa993b | 1988 | { |
2335f48e | 1989 | mfunsym = lookup_minimal_symbol_text (SYMBOL_LINKAGE_NAME (msymbol), |
5520a790 | 1990 | NULL); |
c5aa993b JM |
1991 | if (mfunsym == NULL) |
1992 | /* I eliminated this warning since it is coming out | |
1993 | * in the following situation: | |
1994 | * gdb shmain // test program with shared libraries | |
1995 | * (gdb) break shr1 // function in shared lib | |
1996 | * Warning: In stub for ... | |
9af17804 | 1997 | * In the above situation, the shared lib is not loaded yet, |
c5aa993b JM |
1998 | * so of course we can't find the real func/line info, |
1999 | * but the "break" still works, and the warning is annoying. | |
2000 | * So I commented out the warning. RT */ | |
2335f48e | 2001 | /* warning ("In stub for %s; unable to find real function/line info", SYMBOL_LINKAGE_NAME (msymbol)) */ ; |
c5aa993b | 2002 | /* fall through */ |
82cf6c60 | 2003 | else if (SYMBOL_VALUE_ADDRESS (mfunsym) == SYMBOL_VALUE_ADDRESS (msymbol)) |
c5aa993b JM |
2004 | /* Avoid infinite recursion */ |
2005 | /* See above comment about why warning is commented out */ | |
2335f48e | 2006 | /* warning ("In stub for %s; unable to find real function/line info", SYMBOL_LINKAGE_NAME (msymbol)) */ ; |
c5aa993b JM |
2007 | /* fall through */ |
2008 | else | |
82cf6c60 | 2009 | return find_pc_line (SYMBOL_VALUE_ADDRESS (mfunsym), 0); |
c5aa993b | 2010 | } |
c906108c SS |
2011 | |
2012 | ||
2013 | s = find_pc_sect_symtab (pc, section); | |
2014 | if (!s) | |
2015 | { | |
2016 | /* if no symbol information, return previous pc */ | |
2017 | if (notcurrent) | |
2018 | pc++; | |
2019 | val.pc = pc; | |
2020 | return val; | |
2021 | } | |
2022 | ||
2023 | bv = BLOCKVECTOR (s); | |
2024 | ||
2025 | /* Look at all the symtabs that share this blockvector. | |
2026 | They all have the same apriori range, that we found was right; | |
2027 | but they have different line tables. */ | |
2028 | ||
2029 | for (; s && BLOCKVECTOR (s) == bv; s = s->next) | |
2030 | { | |
2031 | /* Find the best line in this symtab. */ | |
2032 | l = LINETABLE (s); | |
2033 | if (!l) | |
c5aa993b | 2034 | continue; |
c906108c SS |
2035 | len = l->nitems; |
2036 | if (len <= 0) | |
2037 | { | |
2038 | /* I think len can be zero if the symtab lacks line numbers | |
2039 | (e.g. gcc -g1). (Either that or the LINETABLE is NULL; | |
2040 | I'm not sure which, and maybe it depends on the symbol | |
2041 | reader). */ | |
2042 | continue; | |
2043 | } | |
2044 | ||
2045 | prev = NULL; | |
2046 | item = l->item; /* Get first line info */ | |
2047 | ||
2048 | /* Is this file's first line closer than the first lines of other files? | |
c5aa993b | 2049 | If so, record this file, and its first line, as best alternate. */ |
c906108c SS |
2050 | if (item->pc > pc && (!alt || item->pc < alt->pc)) |
2051 | { | |
2052 | alt = item; | |
2053 | alt_symtab = s; | |
2054 | } | |
2055 | ||
2056 | for (i = 0; i < len; i++, item++) | |
2057 | { | |
2058 | /* Leave prev pointing to the linetable entry for the last line | |
2059 | that started at or before PC. */ | |
2060 | if (item->pc > pc) | |
2061 | break; | |
2062 | ||
2063 | prev = item; | |
2064 | } | |
2065 | ||
2066 | /* At this point, prev points at the line whose start addr is <= pc, and | |
c5aa993b JM |
2067 | item points at the next line. If we ran off the end of the linetable |
2068 | (pc >= start of the last line), then prev == item. If pc < start of | |
2069 | the first line, prev will not be set. */ | |
c906108c SS |
2070 | |
2071 | /* Is this file's best line closer than the best in the other files? | |
083ae935 DJ |
2072 | If so, record this file, and its best line, as best so far. Don't |
2073 | save prev if it represents the end of a function (i.e. line number | |
2074 | 0) instead of a real line. */ | |
c906108c | 2075 | |
083ae935 | 2076 | if (prev && prev->line && (!best || prev->pc > best->pc)) |
c906108c SS |
2077 | { |
2078 | best = prev; | |
2079 | best_symtab = s; | |
25d53da1 KB |
2080 | |
2081 | /* Discard BEST_END if it's before the PC of the current BEST. */ | |
2082 | if (best_end <= best->pc) | |
2083 | best_end = 0; | |
c906108c | 2084 | } |
25d53da1 KB |
2085 | |
2086 | /* If another line (denoted by ITEM) is in the linetable and its | |
2087 | PC is after BEST's PC, but before the current BEST_END, then | |
2088 | use ITEM's PC as the new best_end. */ | |
2089 | if (best && i < len && item->pc > best->pc | |
2090 | && (best_end == 0 || best_end > item->pc)) | |
2091 | best_end = item->pc; | |
c906108c SS |
2092 | } |
2093 | ||
2094 | if (!best_symtab) | |
2095 | { | |
e86e87f7 DJ |
2096 | /* If we didn't find any line number info, just return zeros. |
2097 | We used to return alt->line - 1 here, but that could be | |
2098 | anywhere; if we don't have line number info for this PC, | |
2099 | don't make some up. */ | |
2100 | val.pc = pc; | |
c906108c | 2101 | } |
e8717518 FF |
2102 | else if (best->line == 0) |
2103 | { | |
2104 | /* If our best fit is in a range of PC's for which no line | |
2105 | number info is available (line number is zero) then we didn't | |
2106 | find any valid line information. */ | |
2107 | val.pc = pc; | |
2108 | } | |
c906108c SS |
2109 | else |
2110 | { | |
2111 | val.symtab = best_symtab; | |
2112 | val.line = best->line; | |
2113 | val.pc = best->pc; | |
2114 | if (best_end && (!alt || best_end < alt->pc)) | |
2115 | val.end = best_end; | |
2116 | else if (alt) | |
2117 | val.end = alt->pc; | |
2118 | else | |
2119 | val.end = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); | |
2120 | } | |
2121 | val.section = section; | |
2122 | return val; | |
2123 | } | |
2124 | ||
2125 | /* Backward compatibility (no section) */ | |
2126 | ||
2127 | struct symtab_and_line | |
fba45db2 | 2128 | find_pc_line (CORE_ADDR pc, int notcurrent) |
c906108c | 2129 | { |
714835d5 | 2130 | struct obj_section *section; |
c906108c SS |
2131 | |
2132 | section = find_pc_overlay (pc); | |
2133 | if (pc_in_unmapped_range (pc, section)) | |
2134 | pc = overlay_mapped_address (pc, section); | |
2135 | return find_pc_sect_line (pc, section, notcurrent); | |
2136 | } | |
c906108c | 2137 | \f |
c906108c SS |
2138 | /* Find line number LINE in any symtab whose name is the same as |
2139 | SYMTAB. | |
2140 | ||
2141 | If found, return the symtab that contains the linetable in which it was | |
2142 | found, set *INDEX to the index in the linetable of the best entry | |
2143 | found, and set *EXACT_MATCH nonzero if the value returned is an | |
2144 | exact match. | |
2145 | ||
2146 | If not found, return NULL. */ | |
2147 | ||
50641945 | 2148 | struct symtab * |
433759f7 MS |
2149 | find_line_symtab (struct symtab *symtab, int line, |
2150 | int *index, int *exact_match) | |
c906108c | 2151 | { |
6f43c46f | 2152 | int exact = 0; /* Initialized here to avoid a compiler warning. */ |
c906108c SS |
2153 | |
2154 | /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE | |
2155 | so far seen. */ | |
2156 | ||
2157 | int best_index; | |
2158 | struct linetable *best_linetable; | |
2159 | struct symtab *best_symtab; | |
2160 | ||
2161 | /* First try looking it up in the given symtab. */ | |
2162 | best_linetable = LINETABLE (symtab); | |
2163 | best_symtab = symtab; | |
2164 | best_index = find_line_common (best_linetable, line, &exact); | |
2165 | if (best_index < 0 || !exact) | |
2166 | { | |
2167 | /* Didn't find an exact match. So we better keep looking for | |
c5aa993b JM |
2168 | another symtab with the same name. In the case of xcoff, |
2169 | multiple csects for one source file (produced by IBM's FORTRAN | |
2170 | compiler) produce multiple symtabs (this is unavoidable | |
2171 | assuming csects can be at arbitrary places in memory and that | |
2172 | the GLOBAL_BLOCK of a symtab has a begin and end address). */ | |
c906108c SS |
2173 | |
2174 | /* BEST is the smallest linenumber > LINE so far seen, | |
c5aa993b JM |
2175 | or 0 if none has been seen so far. |
2176 | BEST_INDEX and BEST_LINETABLE identify the item for it. */ | |
c906108c SS |
2177 | int best; |
2178 | ||
2179 | struct objfile *objfile; | |
2180 | struct symtab *s; | |
2181 | ||
2182 | if (best_index >= 0) | |
2183 | best = best_linetable->item[best_index].line; | |
2184 | else | |
2185 | best = 0; | |
2186 | ||
ccefe4c4 | 2187 | ALL_OBJFILES (objfile) |
51432cca | 2188 | { |
ccefe4c4 TT |
2189 | if (objfile->sf) |
2190 | objfile->sf->qf->expand_symtabs_with_filename (objfile, | |
2191 | symtab->filename); | |
51432cca CES |
2192 | } |
2193 | ||
3ffc00b8 JB |
2194 | /* Get symbol full file name if possible. */ |
2195 | symtab_to_fullname (symtab); | |
2196 | ||
c906108c | 2197 | ALL_SYMTABS (objfile, s) |
c5aa993b JM |
2198 | { |
2199 | struct linetable *l; | |
2200 | int ind; | |
c906108c | 2201 | |
3ffc00b8 | 2202 | if (FILENAME_CMP (symtab->filename, s->filename) != 0) |
c5aa993b | 2203 | continue; |
3ffc00b8 JB |
2204 | if (symtab->fullname != NULL |
2205 | && symtab_to_fullname (s) != NULL | |
2206 | && FILENAME_CMP (symtab->fullname, s->fullname) != 0) | |
2207 | continue; | |
c5aa993b JM |
2208 | l = LINETABLE (s); |
2209 | ind = find_line_common (l, line, &exact); | |
2210 | if (ind >= 0) | |
2211 | { | |
2212 | if (exact) | |
2213 | { | |
2214 | best_index = ind; | |
2215 | best_linetable = l; | |
2216 | best_symtab = s; | |
2217 | goto done; | |
2218 | } | |
2219 | if (best == 0 || l->item[ind].line < best) | |
2220 | { | |
2221 | best = l->item[ind].line; | |
2222 | best_index = ind; | |
2223 | best_linetable = l; | |
2224 | best_symtab = s; | |
2225 | } | |
2226 | } | |
2227 | } | |
c906108c | 2228 | } |
c5aa993b | 2229 | done: |
c906108c SS |
2230 | if (best_index < 0) |
2231 | return NULL; | |
2232 | ||
2233 | if (index) | |
2234 | *index = best_index; | |
2235 | if (exact_match) | |
2236 | *exact_match = exact; | |
2237 | ||
2238 | return best_symtab; | |
2239 | } | |
2240 | \f | |
2241 | /* Set the PC value for a given source file and line number and return true. | |
2242 | Returns zero for invalid line number (and sets the PC to 0). | |
2243 | The source file is specified with a struct symtab. */ | |
2244 | ||
2245 | int | |
fba45db2 | 2246 | find_line_pc (struct symtab *symtab, int line, CORE_ADDR *pc) |
c906108c SS |
2247 | { |
2248 | struct linetable *l; | |
2249 | int ind; | |
2250 | ||
2251 | *pc = 0; | |
2252 | if (symtab == 0) | |
2253 | return 0; | |
2254 | ||
2255 | symtab = find_line_symtab (symtab, line, &ind, NULL); | |
2256 | if (symtab != NULL) | |
2257 | { | |
2258 | l = LINETABLE (symtab); | |
2259 | *pc = l->item[ind].pc; | |
2260 | return 1; | |
2261 | } | |
2262 | else | |
2263 | return 0; | |
2264 | } | |
2265 | ||
2266 | /* Find the range of pc values in a line. | |
2267 | Store the starting pc of the line into *STARTPTR | |
2268 | and the ending pc (start of next line) into *ENDPTR. | |
2269 | Returns 1 to indicate success. | |
2270 | Returns 0 if could not find the specified line. */ | |
2271 | ||
2272 | int | |
fba45db2 KB |
2273 | find_line_pc_range (struct symtab_and_line sal, CORE_ADDR *startptr, |
2274 | CORE_ADDR *endptr) | |
c906108c SS |
2275 | { |
2276 | CORE_ADDR startaddr; | |
2277 | struct symtab_and_line found_sal; | |
2278 | ||
2279 | startaddr = sal.pc; | |
c5aa993b | 2280 | if (startaddr == 0 && !find_line_pc (sal.symtab, sal.line, &startaddr)) |
c906108c SS |
2281 | return 0; |
2282 | ||
2283 | /* This whole function is based on address. For example, if line 10 has | |
2284 | two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then | |
2285 | "info line *0x123" should say the line goes from 0x100 to 0x200 | |
2286 | and "info line *0x355" should say the line goes from 0x300 to 0x400. | |
2287 | This also insures that we never give a range like "starts at 0x134 | |
2288 | and ends at 0x12c". */ | |
2289 | ||
2290 | found_sal = find_pc_sect_line (startaddr, sal.section, 0); | |
2291 | if (found_sal.line != sal.line) | |
2292 | { | |
2293 | /* The specified line (sal) has zero bytes. */ | |
2294 | *startptr = found_sal.pc; | |
2295 | *endptr = found_sal.pc; | |
2296 | } | |
2297 | else | |
2298 | { | |
2299 | *startptr = found_sal.pc; | |
2300 | *endptr = found_sal.end; | |
2301 | } | |
2302 | return 1; | |
2303 | } | |
2304 | ||
2305 | /* Given a line table and a line number, return the index into the line | |
2306 | table for the pc of the nearest line whose number is >= the specified one. | |
2307 | Return -1 if none is found. The value is >= 0 if it is an index. | |
2308 | ||
2309 | Set *EXACT_MATCH nonzero if the value returned is an exact match. */ | |
2310 | ||
2311 | static int | |
aa1ee363 | 2312 | find_line_common (struct linetable *l, int lineno, |
fba45db2 | 2313 | int *exact_match) |
c906108c | 2314 | { |
52f0bd74 AC |
2315 | int i; |
2316 | int len; | |
c906108c SS |
2317 | |
2318 | /* BEST is the smallest linenumber > LINENO so far seen, | |
2319 | or 0 if none has been seen so far. | |
2320 | BEST_INDEX identifies the item for it. */ | |
2321 | ||
2322 | int best_index = -1; | |
2323 | int best = 0; | |
2324 | ||
b7589f7d DJ |
2325 | *exact_match = 0; |
2326 | ||
c906108c SS |
2327 | if (lineno <= 0) |
2328 | return -1; | |
2329 | if (l == 0) | |
2330 | return -1; | |
2331 | ||
2332 | len = l->nitems; | |
2333 | for (i = 0; i < len; i++) | |
2334 | { | |
aa1ee363 | 2335 | struct linetable_entry *item = &(l->item[i]); |
c906108c SS |
2336 | |
2337 | if (item->line == lineno) | |
2338 | { | |
2339 | /* Return the first (lowest address) entry which matches. */ | |
2340 | *exact_match = 1; | |
2341 | return i; | |
2342 | } | |
2343 | ||
2344 | if (item->line > lineno && (best == 0 || item->line < best)) | |
2345 | { | |
2346 | best = item->line; | |
2347 | best_index = i; | |
2348 | } | |
2349 | } | |
2350 | ||
2351 | /* If we got here, we didn't get an exact match. */ | |
c906108c SS |
2352 | return best_index; |
2353 | } | |
2354 | ||
2355 | int | |
fba45db2 | 2356 | find_pc_line_pc_range (CORE_ADDR pc, CORE_ADDR *startptr, CORE_ADDR *endptr) |
c906108c SS |
2357 | { |
2358 | struct symtab_and_line sal; | |
433759f7 | 2359 | |
c906108c SS |
2360 | sal = find_pc_line (pc, 0); |
2361 | *startptr = sal.pc; | |
2362 | *endptr = sal.end; | |
2363 | return sal.symtab != 0; | |
2364 | } | |
2365 | ||
8c7a1ee8 EZ |
2366 | /* Given a function start address FUNC_ADDR and SYMTAB, find the first |
2367 | address for that function that has an entry in SYMTAB's line info | |
2368 | table. If such an entry cannot be found, return FUNC_ADDR | |
2369 | unaltered. */ | |
2370 | CORE_ADDR | |
2371 | skip_prologue_using_lineinfo (CORE_ADDR func_addr, struct symtab *symtab) | |
2372 | { | |
2373 | CORE_ADDR func_start, func_end; | |
2374 | struct linetable *l; | |
952a6d41 | 2375 | int i; |
8c7a1ee8 EZ |
2376 | |
2377 | /* Give up if this symbol has no lineinfo table. */ | |
2378 | l = LINETABLE (symtab); | |
2379 | if (l == NULL) | |
2380 | return func_addr; | |
2381 | ||
2382 | /* Get the range for the function's PC values, or give up if we | |
2383 | cannot, for some reason. */ | |
2384 | if (!find_pc_partial_function (func_addr, NULL, &func_start, &func_end)) | |
2385 | return func_addr; | |
2386 | ||
2387 | /* Linetable entries are ordered by PC values, see the commentary in | |
2388 | symtab.h where `struct linetable' is defined. Thus, the first | |
2389 | entry whose PC is in the range [FUNC_START..FUNC_END[ is the | |
2390 | address we are looking for. */ | |
2391 | for (i = 0; i < l->nitems; i++) | |
2392 | { | |
2393 | struct linetable_entry *item = &(l->item[i]); | |
2394 | ||
2395 | /* Don't use line numbers of zero, they mark special entries in | |
2396 | the table. See the commentary on symtab.h before the | |
2397 | definition of struct linetable. */ | |
2398 | if (item->line > 0 && func_start <= item->pc && item->pc < func_end) | |
2399 | return item->pc; | |
2400 | } | |
2401 | ||
2402 | return func_addr; | |
2403 | } | |
2404 | ||
c906108c SS |
2405 | /* Given a function symbol SYM, find the symtab and line for the start |
2406 | of the function. | |
2407 | If the argument FUNFIRSTLINE is nonzero, we want the first line | |
2408 | of real code inside the function. */ | |
2409 | ||
50641945 | 2410 | struct symtab_and_line |
fba45db2 | 2411 | find_function_start_sal (struct symbol *sym, int funfirstline) |
c906108c | 2412 | { |
059acae7 UW |
2413 | struct symtab_and_line sal; |
2414 | ||
2415 | fixup_symbol_section (sym, NULL); | |
2416 | sal = find_pc_sect_line (BLOCK_START (SYMBOL_BLOCK_VALUE (sym)), | |
2417 | SYMBOL_OBJ_SECTION (sym), 0); | |
2418 | ||
86da934b UW |
2419 | /* We always should have a line for the function start address. |
2420 | If we don't, something is odd. Create a plain SAL refering | |
2421 | just the PC and hope that skip_prologue_sal (if requested) | |
2422 | can find a line number for after the prologue. */ | |
2423 | if (sal.pc < BLOCK_START (SYMBOL_BLOCK_VALUE (sym))) | |
2424 | { | |
2425 | init_sal (&sal); | |
2426 | sal.pspace = current_program_space; | |
2427 | sal.pc = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); | |
2428 | sal.section = SYMBOL_OBJ_SECTION (sym); | |
2429 | } | |
2430 | ||
059acae7 UW |
2431 | if (funfirstline) |
2432 | skip_prologue_sal (&sal); | |
bccdca4a | 2433 | |
059acae7 UW |
2434 | return sal; |
2435 | } | |
2436 | ||
2437 | /* Adjust SAL to the first instruction past the function prologue. | |
2438 | If the PC was explicitly specified, the SAL is not changed. | |
2439 | If the line number was explicitly specified, at most the SAL's PC | |
2440 | is updated. If SAL is already past the prologue, then do nothing. */ | |
2441 | void | |
2442 | skip_prologue_sal (struct symtab_and_line *sal) | |
2443 | { | |
2444 | struct symbol *sym; | |
2445 | struct symtab_and_line start_sal; | |
2446 | struct cleanup *old_chain; | |
c906108c | 2447 | CORE_ADDR pc; |
059acae7 UW |
2448 | struct obj_section *section; |
2449 | const char *name; | |
2450 | struct objfile *objfile; | |
2451 | struct gdbarch *gdbarch; | |
edb3359d | 2452 | struct block *b, *function_block; |
c906108c | 2453 | |
059acae7 UW |
2454 | /* Do not change the SAL is PC was specified explicitly. */ |
2455 | if (sal->explicit_pc) | |
2456 | return; | |
6c95b8df PA |
2457 | |
2458 | old_chain = save_current_space_and_thread (); | |
059acae7 | 2459 | switch_to_program_space_and_thread (sal->pspace); |
6c95b8df | 2460 | |
059acae7 UW |
2461 | sym = find_pc_sect_function (sal->pc, sal->section); |
2462 | if (sym != NULL) | |
bccdca4a | 2463 | { |
059acae7 UW |
2464 | fixup_symbol_section (sym, NULL); |
2465 | ||
2466 | pc = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); | |
2467 | section = SYMBOL_OBJ_SECTION (sym); | |
2468 | name = SYMBOL_LINKAGE_NAME (sym); | |
2469 | objfile = SYMBOL_SYMTAB (sym)->objfile; | |
c906108c | 2470 | } |
059acae7 UW |
2471 | else |
2472 | { | |
2473 | struct minimal_symbol *msymbol | |
2474 | = lookup_minimal_symbol_by_pc_section (sal->pc, sal->section); | |
433759f7 | 2475 | |
059acae7 UW |
2476 | if (msymbol == NULL) |
2477 | { | |
2478 | do_cleanups (old_chain); | |
2479 | return; | |
2480 | } | |
2481 | ||
2482 | pc = SYMBOL_VALUE_ADDRESS (msymbol); | |
2483 | section = SYMBOL_OBJ_SECTION (msymbol); | |
2484 | name = SYMBOL_LINKAGE_NAME (msymbol); | |
2485 | objfile = msymbol_objfile (msymbol); | |
2486 | } | |
2487 | ||
2488 | gdbarch = get_objfile_arch (objfile); | |
2489 | ||
2490 | /* If the function is in an unmapped overlay, use its unmapped LMA address, | |
2491 | so that gdbarch_skip_prologue has something unique to work on. */ | |
2492 | if (section_is_overlay (section) && !section_is_mapped (section)) | |
2493 | pc = overlay_unmapped_address (pc, section); | |
2494 | ||
2495 | /* Skip "first line" of function (which is actually its prologue). */ | |
2496 | pc += gdbarch_deprecated_function_start_offset (gdbarch); | |
2497 | pc = gdbarch_skip_prologue (gdbarch, pc); | |
2498 | ||
2499 | /* For overlays, map pc back into its mapped VMA range. */ | |
2500 | pc = overlay_mapped_address (pc, section); | |
2501 | ||
2502 | /* Calculate line number. */ | |
2503 | start_sal = find_pc_sect_line (pc, section, 0); | |
c906108c | 2504 | |
a433963d | 2505 | /* Check if gdbarch_skip_prologue left us in mid-line, and the next |
c906108c | 2506 | line is still part of the same function. */ |
059acae7 UW |
2507 | if (start_sal.pc != pc |
2508 | && (sym? (BLOCK_START (SYMBOL_BLOCK_VALUE (sym)) <= start_sal.end | |
2509 | && start_sal.end < BLOCK_END (SYMBOL_BLOCK_VALUE (sym))) | |
2510 | : (lookup_minimal_symbol_by_pc_section (start_sal.end, section) | |
2511 | == lookup_minimal_symbol_by_pc_section (pc, section)))) | |
c906108c SS |
2512 | { |
2513 | /* First pc of next line */ | |
059acae7 | 2514 | pc = start_sal.end; |
c906108c | 2515 | /* Recalculate the line number (might not be N+1). */ |
059acae7 | 2516 | start_sal = find_pc_sect_line (pc, section, 0); |
c906108c | 2517 | } |
4309257c PM |
2518 | |
2519 | /* On targets with executable formats that don't have a concept of | |
2520 | constructors (ELF with .init has, PE doesn't), gcc emits a call | |
2521 | to `__main' in `main' between the prologue and before user | |
2522 | code. */ | |
059acae7 UW |
2523 | if (gdbarch_skip_main_prologue_p (gdbarch) |
2524 | && name && strcmp (name, "main") == 0) | |
4309257c | 2525 | { |
d80b854b | 2526 | pc = gdbarch_skip_main_prologue (gdbarch, pc); |
4309257c | 2527 | /* Recalculate the line number (might not be N+1). */ |
059acae7 | 2528 | start_sal = find_pc_sect_line (pc, section, 0); |
4309257c PM |
2529 | } |
2530 | ||
8c7a1ee8 EZ |
2531 | /* If we still don't have a valid source line, try to find the first |
2532 | PC in the lineinfo table that belongs to the same function. This | |
2533 | happens with COFF debug info, which does not seem to have an | |
2534 | entry in lineinfo table for the code after the prologue which has | |
2535 | no direct relation to source. For example, this was found to be | |
2536 | the case with the DJGPP target using "gcc -gcoff" when the | |
2537 | compiler inserted code after the prologue to make sure the stack | |
2538 | is aligned. */ | |
059acae7 | 2539 | if (sym && start_sal.symtab == NULL) |
8c7a1ee8 EZ |
2540 | { |
2541 | pc = skip_prologue_using_lineinfo (pc, SYMBOL_SYMTAB (sym)); | |
2542 | /* Recalculate the line number. */ | |
059acae7 | 2543 | start_sal = find_pc_sect_line (pc, section, 0); |
8c7a1ee8 EZ |
2544 | } |
2545 | ||
059acae7 UW |
2546 | do_cleanups (old_chain); |
2547 | ||
2548 | /* If we're already past the prologue, leave SAL unchanged. Otherwise | |
2549 | forward SAL to the end of the prologue. */ | |
2550 | if (sal->pc >= pc) | |
2551 | return; | |
2552 | ||
2553 | sal->pc = pc; | |
2554 | sal->section = section; | |
2555 | ||
2556 | /* Unless the explicit_line flag was set, update the SAL line | |
2557 | and symtab to correspond to the modified PC location. */ | |
2558 | if (sal->explicit_line) | |
2559 | return; | |
2560 | ||
2561 | sal->symtab = start_sal.symtab; | |
2562 | sal->line = start_sal.line; | |
2563 | sal->end = start_sal.end; | |
c906108c | 2564 | |
edb3359d DJ |
2565 | /* Check if we are now inside an inlined function. If we can, |
2566 | use the call site of the function instead. */ | |
059acae7 | 2567 | b = block_for_pc_sect (sal->pc, sal->section); |
edb3359d DJ |
2568 | function_block = NULL; |
2569 | while (b != NULL) | |
2570 | { | |
2571 | if (BLOCK_FUNCTION (b) != NULL && block_inlined_p (b)) | |
2572 | function_block = b; | |
2573 | else if (BLOCK_FUNCTION (b) != NULL) | |
2574 | break; | |
2575 | b = BLOCK_SUPERBLOCK (b); | |
2576 | } | |
2577 | if (function_block != NULL | |
2578 | && SYMBOL_LINE (BLOCK_FUNCTION (function_block)) != 0) | |
2579 | { | |
059acae7 UW |
2580 | sal->line = SYMBOL_LINE (BLOCK_FUNCTION (function_block)); |
2581 | sal->symtab = SYMBOL_SYMTAB (BLOCK_FUNCTION (function_block)); | |
edb3359d | 2582 | } |
c906108c | 2583 | } |
50641945 | 2584 | |
c906108c SS |
2585 | /* If P is of the form "operator[ \t]+..." where `...' is |
2586 | some legitimate operator text, return a pointer to the | |
2587 | beginning of the substring of the operator text. | |
2588 | Otherwise, return "". */ | |
2589 | char * | |
fba45db2 | 2590 | operator_chars (char *p, char **end) |
c906108c SS |
2591 | { |
2592 | *end = ""; | |
2593 | if (strncmp (p, "operator", 8)) | |
2594 | return *end; | |
2595 | p += 8; | |
2596 | ||
2597 | /* Don't get faked out by `operator' being part of a longer | |
2598 | identifier. */ | |
c5aa993b | 2599 | if (isalpha (*p) || *p == '_' || *p == '$' || *p == '\0') |
c906108c SS |
2600 | return *end; |
2601 | ||
2602 | /* Allow some whitespace between `operator' and the operator symbol. */ | |
2603 | while (*p == ' ' || *p == '\t') | |
2604 | p++; | |
2605 | ||
2606 | /* Recognize 'operator TYPENAME'. */ | |
2607 | ||
c5aa993b | 2608 | if (isalpha (*p) || *p == '_' || *p == '$') |
c906108c | 2609 | { |
aa1ee363 | 2610 | char *q = p + 1; |
433759f7 | 2611 | |
c5aa993b | 2612 | while (isalnum (*q) || *q == '_' || *q == '$') |
c906108c SS |
2613 | q++; |
2614 | *end = q; | |
2615 | return p; | |
2616 | } | |
2617 | ||
53e8ad3d MS |
2618 | while (*p) |
2619 | switch (*p) | |
2620 | { | |
2621 | case '\\': /* regexp quoting */ | |
2622 | if (p[1] == '*') | |
2623 | { | |
2624 | if (p[2] == '=') /* 'operator\*=' */ | |
2625 | *end = p + 3; | |
2626 | else /* 'operator\*' */ | |
2627 | *end = p + 2; | |
2628 | return p; | |
2629 | } | |
2630 | else if (p[1] == '[') | |
2631 | { | |
2632 | if (p[2] == ']') | |
8a3fe4f8 | 2633 | error (_("mismatched quoting on brackets, try 'operator\\[\\]'")); |
53e8ad3d MS |
2634 | else if (p[2] == '\\' && p[3] == ']') |
2635 | { | |
2636 | *end = p + 4; /* 'operator\[\]' */ | |
2637 | return p; | |
2638 | } | |
2639 | else | |
8a3fe4f8 | 2640 | error (_("nothing is allowed between '[' and ']'")); |
53e8ad3d | 2641 | } |
9af17804 | 2642 | else |
53e8ad3d MS |
2643 | { |
2644 | /* Gratuitous qoute: skip it and move on. */ | |
2645 | p++; | |
2646 | continue; | |
2647 | } | |
2648 | break; | |
2649 | case '!': | |
2650 | case '=': | |
2651 | case '*': | |
2652 | case '/': | |
2653 | case '%': | |
2654 | case '^': | |
2655 | if (p[1] == '=') | |
2656 | *end = p + 2; | |
2657 | else | |
2658 | *end = p + 1; | |
2659 | return p; | |
2660 | case '<': | |
2661 | case '>': | |
2662 | case '+': | |
2663 | case '-': | |
2664 | case '&': | |
2665 | case '|': | |
2666 | if (p[0] == '-' && p[1] == '>') | |
2667 | { | |
2668 | /* Struct pointer member operator 'operator->'. */ | |
2669 | if (p[2] == '*') | |
2670 | { | |
2671 | *end = p + 3; /* 'operator->*' */ | |
2672 | return p; | |
2673 | } | |
2674 | else if (p[2] == '\\') | |
2675 | { | |
2676 | *end = p + 4; /* Hopefully 'operator->\*' */ | |
2677 | return p; | |
2678 | } | |
2679 | else | |
2680 | { | |
2681 | *end = p + 2; /* 'operator->' */ | |
2682 | return p; | |
2683 | } | |
2684 | } | |
2685 | if (p[1] == '=' || p[1] == p[0]) | |
2686 | *end = p + 2; | |
2687 | else | |
2688 | *end = p + 1; | |
2689 | return p; | |
2690 | case '~': | |
2691 | case ',': | |
c5aa993b | 2692 | *end = p + 1; |
53e8ad3d MS |
2693 | return p; |
2694 | case '(': | |
2695 | if (p[1] != ')') | |
8a3fe4f8 | 2696 | error (_("`operator ()' must be specified without whitespace in `()'")); |
c5aa993b | 2697 | *end = p + 2; |
53e8ad3d MS |
2698 | return p; |
2699 | case '?': | |
2700 | if (p[1] != ':') | |
8a3fe4f8 | 2701 | error (_("`operator ?:' must be specified without whitespace in `?:'")); |
53e8ad3d MS |
2702 | *end = p + 2; |
2703 | return p; | |
2704 | case '[': | |
2705 | if (p[1] != ']') | |
8a3fe4f8 | 2706 | error (_("`operator []' must be specified without whitespace in `[]'")); |
53e8ad3d MS |
2707 | *end = p + 2; |
2708 | return p; | |
2709 | default: | |
8a3fe4f8 | 2710 | error (_("`operator %s' not supported"), p); |
53e8ad3d MS |
2711 | break; |
2712 | } | |
2713 | ||
c906108c SS |
2714 | *end = ""; |
2715 | return *end; | |
2716 | } | |
c906108c | 2717 | \f |
c5aa993b | 2718 | |
c94fdfd0 EZ |
2719 | /* If FILE is not already in the table of files, return zero; |
2720 | otherwise return non-zero. Optionally add FILE to the table if ADD | |
2721 | is non-zero. If *FIRST is non-zero, forget the old table | |
2722 | contents. */ | |
2723 | static int | |
2724 | filename_seen (const char *file, int add, int *first) | |
c906108c | 2725 | { |
c94fdfd0 EZ |
2726 | /* Table of files seen so far. */ |
2727 | static const char **tab = NULL; | |
c906108c SS |
2728 | /* Allocated size of tab in elements. |
2729 | Start with one 256-byte block (when using GNU malloc.c). | |
2730 | 24 is the malloc overhead when range checking is in effect. */ | |
2731 | static int tab_alloc_size = (256 - 24) / sizeof (char *); | |
2732 | /* Current size of tab in elements. */ | |
2733 | static int tab_cur_size; | |
c94fdfd0 | 2734 | const char **p; |
c906108c SS |
2735 | |
2736 | if (*first) | |
2737 | { | |
2738 | if (tab == NULL) | |
c94fdfd0 | 2739 | tab = (const char **) xmalloc (tab_alloc_size * sizeof (*tab)); |
c906108c SS |
2740 | tab_cur_size = 0; |
2741 | } | |
2742 | ||
c94fdfd0 | 2743 | /* Is FILE in tab? */ |
c906108c | 2744 | for (p = tab; p < tab + tab_cur_size; p++) |
c94fdfd0 EZ |
2745 | if (strcmp (*p, file) == 0) |
2746 | return 1; | |
2747 | ||
2748 | /* No; maybe add it to tab. */ | |
2749 | if (add) | |
c906108c | 2750 | { |
c94fdfd0 EZ |
2751 | if (tab_cur_size == tab_alloc_size) |
2752 | { | |
2753 | tab_alloc_size *= 2; | |
2754 | tab = (const char **) xrealloc ((char *) tab, | |
2755 | tab_alloc_size * sizeof (*tab)); | |
2756 | } | |
2757 | tab[tab_cur_size++] = file; | |
c906108c | 2758 | } |
c906108c | 2759 | |
c94fdfd0 EZ |
2760 | return 0; |
2761 | } | |
2762 | ||
2763 | /* Slave routine for sources_info. Force line breaks at ,'s. | |
2764 | NAME is the name to print and *FIRST is nonzero if this is the first | |
2765 | name printed. Set *FIRST to zero. */ | |
2766 | static void | |
d092d1a2 | 2767 | output_source_filename (const char *name, int *first) |
c94fdfd0 EZ |
2768 | { |
2769 | /* Since a single source file can result in several partial symbol | |
2770 | tables, we need to avoid printing it more than once. Note: if | |
2771 | some of the psymtabs are read in and some are not, it gets | |
2772 | printed both under "Source files for which symbols have been | |
2773 | read" and "Source files for which symbols will be read in on | |
2774 | demand". I consider this a reasonable way to deal with the | |
2775 | situation. I'm not sure whether this can also happen for | |
2776 | symtabs; it doesn't hurt to check. */ | |
2777 | ||
2778 | /* Was NAME already seen? */ | |
2779 | if (filename_seen (name, 1, first)) | |
2780 | { | |
2781 | /* Yes; don't print it again. */ | |
2782 | return; | |
2783 | } | |
2784 | /* No; print it and reset *FIRST. */ | |
c906108c SS |
2785 | if (*first) |
2786 | { | |
2787 | *first = 0; | |
2788 | } | |
2789 | else | |
2790 | { | |
2791 | printf_filtered (", "); | |
2792 | } | |
2793 | ||
2794 | wrap_here (""); | |
2795 | fputs_filtered (name, gdb_stdout); | |
c5aa993b | 2796 | } |
c906108c | 2797 | |
ccefe4c4 TT |
2798 | /* A callback for map_partial_symbol_filenames. */ |
2799 | static void | |
2800 | output_partial_symbol_filename (const char *fullname, const char *filename, | |
2801 | void *data) | |
2802 | { | |
2803 | output_source_filename (fullname ? fullname : filename, data); | |
2804 | } | |
2805 | ||
c906108c | 2806 | static void |
fba45db2 | 2807 | sources_info (char *ignore, int from_tty) |
c906108c | 2808 | { |
52f0bd74 | 2809 | struct symtab *s; |
52f0bd74 | 2810 | struct objfile *objfile; |
c906108c | 2811 | int first; |
c5aa993b | 2812 | |
c906108c SS |
2813 | if (!have_full_symbols () && !have_partial_symbols ()) |
2814 | { | |
8a3fe4f8 | 2815 | error (_("No symbol table is loaded. Use the \"file\" command.")); |
c906108c | 2816 | } |
c5aa993b | 2817 | |
c906108c SS |
2818 | printf_filtered ("Source files for which symbols have been read in:\n\n"); |
2819 | ||
2820 | first = 1; | |
2821 | ALL_SYMTABS (objfile, s) | |
c5aa993b | 2822 | { |
d092d1a2 | 2823 | const char *fullname = symtab_to_fullname (s); |
433759f7 | 2824 | |
d092d1a2 | 2825 | output_source_filename (fullname ? fullname : s->filename, &first); |
c5aa993b | 2826 | } |
c906108c | 2827 | printf_filtered ("\n\n"); |
c5aa993b | 2828 | |
c906108c SS |
2829 | printf_filtered ("Source files for which symbols will be read in on demand:\n\n"); |
2830 | ||
2831 | first = 1; | |
ccefe4c4 | 2832 | map_partial_symbol_filenames (output_partial_symbol_filename, &first); |
c906108c SS |
2833 | printf_filtered ("\n"); |
2834 | } | |
2835 | ||
2836 | static int | |
ccefe4c4 | 2837 | file_matches (const char *file, char *files[], int nfiles) |
c906108c SS |
2838 | { |
2839 | int i; | |
2840 | ||
2841 | if (file != NULL && nfiles != 0) | |
2842 | { | |
2843 | for (i = 0; i < nfiles; i++) | |
c5aa993b | 2844 | { |
31889e00 | 2845 | if (strcmp (files[i], lbasename (file)) == 0) |
c5aa993b JM |
2846 | return 1; |
2847 | } | |
c906108c SS |
2848 | } |
2849 | else if (nfiles == 0) | |
2850 | return 1; | |
2851 | return 0; | |
2852 | } | |
2853 | ||
2854 | /* Free any memory associated with a search. */ | |
2855 | void | |
fba45db2 | 2856 | free_search_symbols (struct symbol_search *symbols) |
c906108c SS |
2857 | { |
2858 | struct symbol_search *p; | |
2859 | struct symbol_search *next; | |
2860 | ||
2861 | for (p = symbols; p != NULL; p = next) | |
2862 | { | |
2863 | next = p->next; | |
b8c9b27d | 2864 | xfree (p); |
c906108c SS |
2865 | } |
2866 | } | |
2867 | ||
5bd98722 AC |
2868 | static void |
2869 | do_free_search_symbols_cleanup (void *symbols) | |
2870 | { | |
2871 | free_search_symbols (symbols); | |
2872 | } | |
2873 | ||
2874 | struct cleanup * | |
2875 | make_cleanup_free_search_symbols (struct symbol_search *symbols) | |
2876 | { | |
2877 | return make_cleanup (do_free_search_symbols_cleanup, symbols); | |
2878 | } | |
2879 | ||
434d2d4f DJ |
2880 | /* Helper function for sort_search_symbols and qsort. Can only |
2881 | sort symbols, not minimal symbols. */ | |
2882 | static int | |
2883 | compare_search_syms (const void *sa, const void *sb) | |
2884 | { | |
2885 | struct symbol_search **sym_a = (struct symbol_search **) sa; | |
2886 | struct symbol_search **sym_b = (struct symbol_search **) sb; | |
2887 | ||
de5ad195 DC |
2888 | return strcmp (SYMBOL_PRINT_NAME ((*sym_a)->symbol), |
2889 | SYMBOL_PRINT_NAME ((*sym_b)->symbol)); | |
434d2d4f DJ |
2890 | } |
2891 | ||
2892 | /* Sort the ``nfound'' symbols in the list after prevtail. Leave | |
2893 | prevtail where it is, but update its next pointer to point to | |
2894 | the first of the sorted symbols. */ | |
2895 | static struct symbol_search * | |
2896 | sort_search_symbols (struct symbol_search *prevtail, int nfound) | |
2897 | { | |
2898 | struct symbol_search **symbols, *symp, *old_next; | |
2899 | int i; | |
2900 | ||
2901 | symbols = (struct symbol_search **) xmalloc (sizeof (struct symbol_search *) | |
2902 | * nfound); | |
2903 | symp = prevtail->next; | |
2904 | for (i = 0; i < nfound; i++) | |
2905 | { | |
2906 | symbols[i] = symp; | |
2907 | symp = symp->next; | |
2908 | } | |
2909 | /* Generally NULL. */ | |
2910 | old_next = symp; | |
2911 | ||
2912 | qsort (symbols, nfound, sizeof (struct symbol_search *), | |
2913 | compare_search_syms); | |
2914 | ||
2915 | symp = prevtail; | |
2916 | for (i = 0; i < nfound; i++) | |
2917 | { | |
2918 | symp->next = symbols[i]; | |
2919 | symp = symp->next; | |
2920 | } | |
2921 | symp->next = old_next; | |
2922 | ||
8ed32cc0 | 2923 | xfree (symbols); |
434d2d4f DJ |
2924 | return symp; |
2925 | } | |
5bd98722 | 2926 | |
ccefe4c4 TT |
2927 | /* An object of this type is passed as the user_data to the |
2928 | expand_symtabs_matching method. */ | |
2929 | struct search_symbols_data | |
2930 | { | |
2931 | int nfiles; | |
2932 | char **files; | |
2933 | char *regexp; | |
2934 | }; | |
2935 | ||
2936 | /* A callback for expand_symtabs_matching. */ | |
2937 | static int | |
2938 | search_symbols_file_matches (const char *filename, void *user_data) | |
2939 | { | |
2940 | struct search_symbols_data *data = user_data; | |
433759f7 | 2941 | |
ccefe4c4 TT |
2942 | return file_matches (filename, data->files, data->nfiles); |
2943 | } | |
2944 | ||
2945 | /* A callback for expand_symtabs_matching. */ | |
2946 | static int | |
2947 | search_symbols_name_matches (const char *symname, void *user_data) | |
2948 | { | |
2949 | struct search_symbols_data *data = user_data; | |
433759f7 | 2950 | |
ccefe4c4 TT |
2951 | return data->regexp == NULL || re_exec (symname); |
2952 | } | |
2953 | ||
c906108c SS |
2954 | /* Search the symbol table for matches to the regular expression REGEXP, |
2955 | returning the results in *MATCHES. | |
2956 | ||
2957 | Only symbols of KIND are searched: | |
176620f1 EZ |
2958 | FUNCTIONS_DOMAIN - search all functions |
2959 | TYPES_DOMAIN - search all type names | |
176620f1 | 2960 | VARIABLES_DOMAIN - search all symbols, excluding functions, type names, |
c5aa993b | 2961 | and constants (enums) |
c906108c SS |
2962 | |
2963 | free_search_symbols should be called when *MATCHES is no longer needed. | |
434d2d4f DJ |
2964 | |
2965 | The results are sorted locally; each symtab's global and static blocks are | |
2966 | separately alphabetized. | |
c5aa993b | 2967 | */ |
c906108c | 2968 | void |
176620f1 | 2969 | search_symbols (char *regexp, domain_enum kind, int nfiles, char *files[], |
fd118b61 | 2970 | struct symbol_search **matches) |
c906108c | 2971 | { |
52f0bd74 | 2972 | struct symtab *s; |
52f0bd74 | 2973 | struct blockvector *bv; |
52f0bd74 AC |
2974 | struct block *b; |
2975 | int i = 0; | |
de4f826b | 2976 | struct dict_iterator iter; |
52f0bd74 | 2977 | struct symbol *sym; |
c906108c SS |
2978 | struct objfile *objfile; |
2979 | struct minimal_symbol *msymbol; | |
2980 | char *val; | |
2981 | int found_misc = 0; | |
bc043ef3 | 2982 | static const enum minimal_symbol_type types[] |
433759f7 | 2983 | = {mst_data, mst_text, mst_abs, mst_unknown}; |
bc043ef3 | 2984 | static const enum minimal_symbol_type types2[] |
433759f7 | 2985 | = {mst_bss, mst_file_text, mst_abs, mst_unknown}; |
bc043ef3 | 2986 | static const enum minimal_symbol_type types3[] |
433759f7 | 2987 | = {mst_file_data, mst_solib_trampoline, mst_abs, mst_unknown}; |
bc043ef3 | 2988 | static const enum minimal_symbol_type types4[] |
433759f7 | 2989 | = {mst_file_bss, mst_text, mst_abs, mst_unknown}; |
c906108c SS |
2990 | enum minimal_symbol_type ourtype; |
2991 | enum minimal_symbol_type ourtype2; | |
2992 | enum minimal_symbol_type ourtype3; | |
2993 | enum minimal_symbol_type ourtype4; | |
2994 | struct symbol_search *sr; | |
2995 | struct symbol_search *psr; | |
2996 | struct symbol_search *tail; | |
2997 | struct cleanup *old_chain = NULL; | |
ccefe4c4 | 2998 | struct search_symbols_data datum; |
c906108c | 2999 | |
176620f1 | 3000 | if (kind < VARIABLES_DOMAIN) |
8a3fe4f8 | 3001 | error (_("must search on specific domain")); |
c906108c | 3002 | |
176620f1 EZ |
3003 | ourtype = types[(int) (kind - VARIABLES_DOMAIN)]; |
3004 | ourtype2 = types2[(int) (kind - VARIABLES_DOMAIN)]; | |
3005 | ourtype3 = types3[(int) (kind - VARIABLES_DOMAIN)]; | |
3006 | ourtype4 = types4[(int) (kind - VARIABLES_DOMAIN)]; | |
c906108c SS |
3007 | |
3008 | sr = *matches = NULL; | |
3009 | tail = NULL; | |
3010 | ||
3011 | if (regexp != NULL) | |
3012 | { | |
3013 | /* Make sure spacing is right for C++ operators. | |
3014 | This is just a courtesy to make the matching less sensitive | |
3015 | to how many spaces the user leaves between 'operator' | |
3016 | and <TYPENAME> or <OPERATOR>. */ | |
3017 | char *opend; | |
3018 | char *opname = operator_chars (regexp, &opend); | |
433759f7 | 3019 | |
c906108c | 3020 | if (*opname) |
c5aa993b JM |
3021 | { |
3022 | int fix = -1; /* -1 means ok; otherwise number of spaces needed. */ | |
433759f7 | 3023 | |
c5aa993b JM |
3024 | if (isalpha (*opname) || *opname == '_' || *opname == '$') |
3025 | { | |
3026 | /* There should 1 space between 'operator' and 'TYPENAME'. */ | |
3027 | if (opname[-1] != ' ' || opname[-2] == ' ') | |
3028 | fix = 1; | |
3029 | } | |
3030 | else | |
3031 | { | |
3032 | /* There should 0 spaces between 'operator' and 'OPERATOR'. */ | |
3033 | if (opname[-1] == ' ') | |
3034 | fix = 0; | |
3035 | } | |
3036 | /* If wrong number of spaces, fix it. */ | |
3037 | if (fix >= 0) | |
3038 | { | |
045f55a6 | 3039 | char *tmp = (char *) alloca (8 + fix + strlen (opname) + 1); |
433759f7 | 3040 | |
c5aa993b JM |
3041 | sprintf (tmp, "operator%.*s%s", fix, " ", opname); |
3042 | regexp = tmp; | |
3043 | } | |
3044 | } | |
3045 | ||
c906108c | 3046 | if (0 != (val = re_comp (regexp))) |
8a3fe4f8 | 3047 | error (_("Invalid regexp (%s): %s"), val, regexp); |
c906108c SS |
3048 | } |
3049 | ||
3050 | /* Search through the partial symtabs *first* for all symbols | |
3051 | matching the regexp. That way we don't have to reproduce all of | |
3052 | the machinery below. */ | |
3053 | ||
ccefe4c4 TT |
3054 | datum.nfiles = nfiles; |
3055 | datum.files = files; | |
3056 | datum.regexp = regexp; | |
3057 | ALL_OBJFILES (objfile) | |
c5aa993b | 3058 | { |
ccefe4c4 TT |
3059 | if (objfile->sf) |
3060 | objfile->sf->qf->expand_symtabs_matching (objfile, | |
3061 | search_symbols_file_matches, | |
3062 | search_symbols_name_matches, | |
3063 | kind, | |
3064 | &datum); | |
c5aa993b | 3065 | } |
c906108c SS |
3066 | |
3067 | /* Here, we search through the minimal symbol tables for functions | |
3068 | and variables that match, and force their symbols to be read. | |
3069 | This is in particular necessary for demangled variable names, | |
3070 | which are no longer put into the partial symbol tables. | |
3071 | The symbol will then be found during the scan of symtabs below. | |
3072 | ||
3073 | For functions, find_pc_symtab should succeed if we have debug info | |
3074 | for the function, for variables we have to call lookup_symbol | |
3075 | to determine if the variable has debug info. | |
3076 | If the lookup fails, set found_misc so that we will rescan to print | |
3077 | any matching symbols without debug info. | |
c5aa993b | 3078 | */ |
c906108c | 3079 | |
176620f1 | 3080 | if (nfiles == 0 && (kind == VARIABLES_DOMAIN || kind == FUNCTIONS_DOMAIN)) |
c906108c SS |
3081 | { |
3082 | ALL_MSYMBOLS (objfile, msymbol) | |
c5aa993b | 3083 | { |
89295b4d PP |
3084 | QUIT; |
3085 | ||
c5aa993b JM |
3086 | if (MSYMBOL_TYPE (msymbol) == ourtype || |
3087 | MSYMBOL_TYPE (msymbol) == ourtype2 || | |
3088 | MSYMBOL_TYPE (msymbol) == ourtype3 || | |
3089 | MSYMBOL_TYPE (msymbol) == ourtype4) | |
3090 | { | |
25120b0d DC |
3091 | if (regexp == NULL |
3092 | || re_exec (SYMBOL_NATURAL_NAME (msymbol)) != 0) | |
c5aa993b JM |
3093 | { |
3094 | if (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol))) | |
3095 | { | |
b1262a02 DC |
3096 | /* FIXME: carlton/2003-02-04: Given that the |
3097 | semantics of lookup_symbol keeps on changing | |
3098 | slightly, it would be a nice idea if we had a | |
3099 | function lookup_symbol_minsym that found the | |
3100 | symbol associated to a given minimal symbol (if | |
3101 | any). */ | |
176620f1 | 3102 | if (kind == FUNCTIONS_DOMAIN |
2335f48e | 3103 | || lookup_symbol (SYMBOL_LINKAGE_NAME (msymbol), |
b1262a02 | 3104 | (struct block *) NULL, |
2570f2b7 | 3105 | VAR_DOMAIN, 0) |
53c5240f | 3106 | == NULL) |
b1262a02 | 3107 | found_misc = 1; |
c5aa993b JM |
3108 | } |
3109 | } | |
3110 | } | |
3111 | } | |
c906108c SS |
3112 | } |
3113 | ||
11309657 | 3114 | ALL_PRIMARY_SYMTABS (objfile, s) |
c5aa993b JM |
3115 | { |
3116 | bv = BLOCKVECTOR (s); | |
c5aa993b JM |
3117 | for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++) |
3118 | { | |
434d2d4f DJ |
3119 | struct symbol_search *prevtail = tail; |
3120 | int nfound = 0; | |
433759f7 | 3121 | |
c5aa993b | 3122 | b = BLOCKVECTOR_BLOCK (bv, i); |
de4f826b | 3123 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c5aa993b | 3124 | { |
cb1df416 | 3125 | struct symtab *real_symtab = SYMBOL_SYMTAB (sym); |
433759f7 | 3126 | |
c5aa993b | 3127 | QUIT; |
cb1df416 DJ |
3128 | |
3129 | if (file_matches (real_symtab->filename, files, nfiles) | |
25120b0d DC |
3130 | && ((regexp == NULL |
3131 | || re_exec (SYMBOL_NATURAL_NAME (sym)) != 0) | |
254e6b9e DE |
3132 | && ((kind == VARIABLES_DOMAIN |
3133 | && SYMBOL_CLASS (sym) != LOC_TYPEDEF | |
0fe7935b | 3134 | && SYMBOL_CLASS (sym) != LOC_UNRESOLVED |
c5aa993b | 3135 | && SYMBOL_CLASS (sym) != LOC_BLOCK |
254e6b9e DE |
3136 | /* LOC_CONST can be used for more than just enums, |
3137 | e.g., c++ static const members. | |
3138 | We only want to skip enums here. */ | |
3139 | && !(SYMBOL_CLASS (sym) == LOC_CONST | |
3140 | && TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_ENUM)) | |
176620f1 | 3141 | || (kind == FUNCTIONS_DOMAIN && SYMBOL_CLASS (sym) == LOC_BLOCK) |
bd2e94ce | 3142 | || (kind == TYPES_DOMAIN && SYMBOL_CLASS (sym) == LOC_TYPEDEF)))) |
c5aa993b JM |
3143 | { |
3144 | /* match */ | |
3145 | psr = (struct symbol_search *) xmalloc (sizeof (struct symbol_search)); | |
3146 | psr->block = i; | |
cb1df416 | 3147 | psr->symtab = real_symtab; |
c5aa993b JM |
3148 | psr->symbol = sym; |
3149 | psr->msymbol = NULL; | |
3150 | psr->next = NULL; | |
3151 | if (tail == NULL) | |
434d2d4f | 3152 | sr = psr; |
c5aa993b JM |
3153 | else |
3154 | tail->next = psr; | |
3155 | tail = psr; | |
434d2d4f DJ |
3156 | nfound ++; |
3157 | } | |
3158 | } | |
3159 | if (nfound > 0) | |
3160 | { | |
3161 | if (prevtail == NULL) | |
3162 | { | |
3163 | struct symbol_search dummy; | |
3164 | ||
3165 | dummy.next = sr; | |
3166 | tail = sort_search_symbols (&dummy, nfound); | |
3167 | sr = dummy.next; | |
3168 | ||
3169 | old_chain = make_cleanup_free_search_symbols (sr); | |
c5aa993b | 3170 | } |
434d2d4f DJ |
3171 | else |
3172 | tail = sort_search_symbols (prevtail, nfound); | |
c5aa993b JM |
3173 | } |
3174 | } | |
c5aa993b | 3175 | } |
c906108c SS |
3176 | |
3177 | /* If there are no eyes, avoid all contact. I mean, if there are | |
3178 | no debug symbols, then print directly from the msymbol_vector. */ | |
3179 | ||
176620f1 | 3180 | if (found_misc || kind != FUNCTIONS_DOMAIN) |
c906108c SS |
3181 | { |
3182 | ALL_MSYMBOLS (objfile, msymbol) | |
c5aa993b | 3183 | { |
89295b4d PP |
3184 | QUIT; |
3185 | ||
c5aa993b JM |
3186 | if (MSYMBOL_TYPE (msymbol) == ourtype || |
3187 | MSYMBOL_TYPE (msymbol) == ourtype2 || | |
3188 | MSYMBOL_TYPE (msymbol) == ourtype3 || | |
3189 | MSYMBOL_TYPE (msymbol) == ourtype4) | |
3190 | { | |
25120b0d DC |
3191 | if (regexp == NULL |
3192 | || re_exec (SYMBOL_NATURAL_NAME (msymbol)) != 0) | |
c5aa993b JM |
3193 | { |
3194 | /* Functions: Look up by address. */ | |
176620f1 | 3195 | if (kind != FUNCTIONS_DOMAIN || |
c5aa993b JM |
3196 | (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol)))) |
3197 | { | |
3198 | /* Variables/Absolutes: Look up by name */ | |
2335f48e | 3199 | if (lookup_symbol (SYMBOL_LINKAGE_NAME (msymbol), |
2570f2b7 UW |
3200 | (struct block *) NULL, VAR_DOMAIN, 0) |
3201 | == NULL) | |
c5aa993b JM |
3202 | { |
3203 | /* match */ | |
3204 | psr = (struct symbol_search *) xmalloc (sizeof (struct symbol_search)); | |
3205 | psr->block = i; | |
3206 | psr->msymbol = msymbol; | |
3207 | psr->symtab = NULL; | |
3208 | psr->symbol = NULL; | |
3209 | psr->next = NULL; | |
3210 | if (tail == NULL) | |
3211 | { | |
3212 | sr = psr; | |
5bd98722 | 3213 | old_chain = make_cleanup_free_search_symbols (sr); |
c5aa993b JM |
3214 | } |
3215 | else | |
3216 | tail->next = psr; | |
3217 | tail = psr; | |
3218 | } | |
3219 | } | |
3220 | } | |
3221 | } | |
3222 | } | |
c906108c SS |
3223 | } |
3224 | ||
3225 | *matches = sr; | |
3226 | if (sr != NULL) | |
3227 | discard_cleanups (old_chain); | |
3228 | } | |
3229 | ||
3230 | /* Helper function for symtab_symbol_info, this function uses | |
3231 | the data returned from search_symbols() to print information | |
3232 | regarding the match to gdb_stdout. | |
c5aa993b | 3233 | */ |
c906108c | 3234 | static void |
176620f1 | 3235 | print_symbol_info (domain_enum kind, struct symtab *s, struct symbol *sym, |
fba45db2 | 3236 | int block, char *last) |
c906108c SS |
3237 | { |
3238 | if (last == NULL || strcmp (last, s->filename) != 0) | |
3239 | { | |
3240 | fputs_filtered ("\nFile ", gdb_stdout); | |
3241 | fputs_filtered (s->filename, gdb_stdout); | |
3242 | fputs_filtered (":\n", gdb_stdout); | |
3243 | } | |
3244 | ||
176620f1 | 3245 | if (kind != TYPES_DOMAIN && block == STATIC_BLOCK) |
c906108c | 3246 | printf_filtered ("static "); |
c5aa993b | 3247 | |
c906108c | 3248 | /* Typedef that is not a C++ class */ |
176620f1 EZ |
3249 | if (kind == TYPES_DOMAIN |
3250 | && SYMBOL_DOMAIN (sym) != STRUCT_DOMAIN) | |
a5238fbc | 3251 | typedef_print (SYMBOL_TYPE (sym), sym, gdb_stdout); |
c906108c | 3252 | /* variable, func, or typedef-that-is-c++-class */ |
176620f1 EZ |
3253 | else if (kind < TYPES_DOMAIN || |
3254 | (kind == TYPES_DOMAIN && | |
3255 | SYMBOL_DOMAIN (sym) == STRUCT_DOMAIN)) | |
c906108c SS |
3256 | { |
3257 | type_print (SYMBOL_TYPE (sym), | |
c5aa993b | 3258 | (SYMBOL_CLASS (sym) == LOC_TYPEDEF |
de5ad195 | 3259 | ? "" : SYMBOL_PRINT_NAME (sym)), |
c5aa993b | 3260 | gdb_stdout, 0); |
c906108c SS |
3261 | |
3262 | printf_filtered (";\n"); | |
3263 | } | |
c906108c SS |
3264 | } |
3265 | ||
3266 | /* This help function for symtab_symbol_info() prints information | |
3267 | for non-debugging symbols to gdb_stdout. | |
c5aa993b | 3268 | */ |
c906108c | 3269 | static void |
fba45db2 | 3270 | print_msymbol_info (struct minimal_symbol *msymbol) |
c906108c | 3271 | { |
d80b854b | 3272 | struct gdbarch *gdbarch = get_objfile_arch (msymbol_objfile (msymbol)); |
3ac4495a MS |
3273 | char *tmp; |
3274 | ||
d80b854b | 3275 | if (gdbarch_addr_bit (gdbarch) <= 32) |
bb599908 PH |
3276 | tmp = hex_string_custom (SYMBOL_VALUE_ADDRESS (msymbol) |
3277 | & (CORE_ADDR) 0xffffffff, | |
3278 | 8); | |
3ac4495a | 3279 | else |
bb599908 PH |
3280 | tmp = hex_string_custom (SYMBOL_VALUE_ADDRESS (msymbol), |
3281 | 16); | |
3ac4495a | 3282 | printf_filtered ("%s %s\n", |
de5ad195 | 3283 | tmp, SYMBOL_PRINT_NAME (msymbol)); |
c906108c SS |
3284 | } |
3285 | ||
3286 | /* This is the guts of the commands "info functions", "info types", and | |
3287 | "info variables". It calls search_symbols to find all matches and then | |
3288 | print_[m]symbol_info to print out some useful information about the | |
3289 | matches. | |
c5aa993b | 3290 | */ |
c906108c | 3291 | static void |
176620f1 | 3292 | symtab_symbol_info (char *regexp, domain_enum kind, int from_tty) |
c906108c | 3293 | { |
bc043ef3 DE |
3294 | static const char * const classnames[] = |
3295 | {"variable", "function", "type", "method"}; | |
c906108c SS |
3296 | struct symbol_search *symbols; |
3297 | struct symbol_search *p; | |
3298 | struct cleanup *old_chain; | |
3299 | char *last_filename = NULL; | |
3300 | int first = 1; | |
3301 | ||
3302 | /* must make sure that if we're interrupted, symbols gets freed */ | |
3303 | search_symbols (regexp, kind, 0, (char **) NULL, &symbols); | |
5bd98722 | 3304 | old_chain = make_cleanup_free_search_symbols (symbols); |
c906108c SS |
3305 | |
3306 | printf_filtered (regexp | |
c5aa993b JM |
3307 | ? "All %ss matching regular expression \"%s\":\n" |
3308 | : "All defined %ss:\n", | |
176620f1 | 3309 | classnames[(int) (kind - VARIABLES_DOMAIN)], regexp); |
c906108c SS |
3310 | |
3311 | for (p = symbols; p != NULL; p = p->next) | |
3312 | { | |
3313 | QUIT; | |
3314 | ||
3315 | if (p->msymbol != NULL) | |
c5aa993b JM |
3316 | { |
3317 | if (first) | |
3318 | { | |
3319 | printf_filtered ("\nNon-debugging symbols:\n"); | |
3320 | first = 0; | |
3321 | } | |
3322 | print_msymbol_info (p->msymbol); | |
3323 | } | |
c906108c | 3324 | else |
c5aa993b JM |
3325 | { |
3326 | print_symbol_info (kind, | |
3327 | p->symtab, | |
3328 | p->symbol, | |
3329 | p->block, | |
3330 | last_filename); | |
3331 | last_filename = p->symtab->filename; | |
3332 | } | |
c906108c SS |
3333 | } |
3334 | ||
3335 | do_cleanups (old_chain); | |
3336 | } | |
3337 | ||
3338 | static void | |
fba45db2 | 3339 | variables_info (char *regexp, int from_tty) |
c906108c | 3340 | { |
176620f1 | 3341 | symtab_symbol_info (regexp, VARIABLES_DOMAIN, from_tty); |
c906108c SS |
3342 | } |
3343 | ||
3344 | static void | |
fba45db2 | 3345 | functions_info (char *regexp, int from_tty) |
c906108c | 3346 | { |
176620f1 | 3347 | symtab_symbol_info (regexp, FUNCTIONS_DOMAIN, from_tty); |
c906108c SS |
3348 | } |
3349 | ||
357e46e7 | 3350 | |
c906108c | 3351 | static void |
fba45db2 | 3352 | types_info (char *regexp, int from_tty) |
c906108c | 3353 | { |
176620f1 | 3354 | symtab_symbol_info (regexp, TYPES_DOMAIN, from_tty); |
c906108c SS |
3355 | } |
3356 | ||
c906108c | 3357 | /* Breakpoint all functions matching regular expression. */ |
8926118c | 3358 | |
8b93c638 | 3359 | void |
fba45db2 | 3360 | rbreak_command_wrapper (char *regexp, int from_tty) |
8b93c638 JM |
3361 | { |
3362 | rbreak_command (regexp, from_tty); | |
3363 | } | |
8926118c | 3364 | |
95a42b64 TT |
3365 | /* A cleanup function that calls end_rbreak_breakpoints. */ |
3366 | ||
3367 | static void | |
3368 | do_end_rbreak_breakpoints (void *ignore) | |
3369 | { | |
3370 | end_rbreak_breakpoints (); | |
3371 | } | |
3372 | ||
c906108c | 3373 | static void |
fba45db2 | 3374 | rbreak_command (char *regexp, int from_tty) |
c906108c SS |
3375 | { |
3376 | struct symbol_search *ss; | |
3377 | struct symbol_search *p; | |
3378 | struct cleanup *old_chain; | |
95a42b64 TT |
3379 | char *string = NULL; |
3380 | int len = 0; | |
8bd10a10 CM |
3381 | char **files = NULL; |
3382 | int nfiles = 0; | |
c906108c | 3383 | |
8bd10a10 CM |
3384 | if (regexp) |
3385 | { | |
3386 | char *colon = strchr (regexp, ':'); | |
433759f7 | 3387 | |
8bd10a10 CM |
3388 | if (colon && *(colon + 1) != ':') |
3389 | { | |
3390 | int colon_index; | |
3391 | char * file_name; | |
3392 | ||
3393 | colon_index = colon - regexp; | |
3394 | file_name = alloca (colon_index + 1); | |
3395 | memcpy (file_name, regexp, colon_index); | |
3396 | file_name[colon_index--] = 0; | |
3397 | while (isspace (file_name[colon_index])) | |
3398 | file_name[colon_index--] = 0; | |
3399 | files = &file_name; | |
3400 | nfiles = 1; | |
3401 | regexp = colon + 1; | |
3402 | while (isspace (*regexp)) regexp++; | |
3403 | } | |
3404 | } | |
3405 | ||
3406 | search_symbols (regexp, FUNCTIONS_DOMAIN, nfiles, files, &ss); | |
5bd98722 | 3407 | old_chain = make_cleanup_free_search_symbols (ss); |
95a42b64 | 3408 | make_cleanup (free_current_contents, &string); |
c906108c | 3409 | |
95a42b64 TT |
3410 | start_rbreak_breakpoints (); |
3411 | make_cleanup (do_end_rbreak_breakpoints, NULL); | |
c906108c SS |
3412 | for (p = ss; p != NULL; p = p->next) |
3413 | { | |
3414 | if (p->msymbol == NULL) | |
c5aa993b | 3415 | { |
95a42b64 TT |
3416 | int newlen = (strlen (p->symtab->filename) |
3417 | + strlen (SYMBOL_LINKAGE_NAME (p->symbol)) | |
3418 | + 4); | |
433759f7 | 3419 | |
95a42b64 TT |
3420 | if (newlen > len) |
3421 | { | |
3422 | string = xrealloc (string, newlen); | |
3423 | len = newlen; | |
3424 | } | |
c5aa993b JM |
3425 | strcpy (string, p->symtab->filename); |
3426 | strcat (string, ":'"); | |
2335f48e | 3427 | strcat (string, SYMBOL_LINKAGE_NAME (p->symbol)); |
c5aa993b JM |
3428 | strcat (string, "'"); |
3429 | break_command (string, from_tty); | |
176620f1 | 3430 | print_symbol_info (FUNCTIONS_DOMAIN, |
c5aa993b JM |
3431 | p->symtab, |
3432 | p->symbol, | |
3433 | p->block, | |
3434 | p->symtab->filename); | |
3435 | } | |
c906108c | 3436 | else |
c5aa993b | 3437 | { |
433759f7 MS |
3438 | int newlen = (strlen (SYMBOL_LINKAGE_NAME (p->msymbol)) + 3); |
3439 | ||
95a42b64 TT |
3440 | if (newlen > len) |
3441 | { | |
3442 | string = xrealloc (string, newlen); | |
3443 | len = newlen; | |
3444 | } | |
6214f497 DJ |
3445 | strcpy (string, "'"); |
3446 | strcat (string, SYMBOL_LINKAGE_NAME (p->msymbol)); | |
3447 | strcat (string, "'"); | |
3448 | ||
3449 | break_command (string, from_tty); | |
c5aa993b | 3450 | printf_filtered ("<function, no debug info> %s;\n", |
de5ad195 | 3451 | SYMBOL_PRINT_NAME (p->msymbol)); |
c5aa993b | 3452 | } |
c906108c SS |
3453 | } |
3454 | ||
3455 | do_cleanups (old_chain); | |
3456 | } | |
c906108c | 3457 | \f |
c5aa993b | 3458 | |
c906108c SS |
3459 | /* Helper routine for make_symbol_completion_list. */ |
3460 | ||
3461 | static int return_val_size; | |
3462 | static int return_val_index; | |
3463 | static char **return_val; | |
3464 | ||
3465 | #define COMPLETION_LIST_ADD_SYMBOL(symbol, sym_text, len, text, word) \ | |
c906108c | 3466 | completion_list_add_name \ |
2335f48e | 3467 | (SYMBOL_NATURAL_NAME (symbol), (sym_text), (len), (text), (word)) |
c906108c SS |
3468 | |
3469 | /* Test to see if the symbol specified by SYMNAME (which is already | |
c5aa993b JM |
3470 | demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN |
3471 | characters. If so, add it to the current completion list. */ | |
c906108c SS |
3472 | |
3473 | static void | |
fba45db2 KB |
3474 | completion_list_add_name (char *symname, char *sym_text, int sym_text_len, |
3475 | char *text, char *word) | |
c906108c SS |
3476 | { |
3477 | int newsize; | |
c906108c SS |
3478 | |
3479 | /* clip symbols that cannot match */ | |
3480 | ||
3481 | if (strncmp (symname, sym_text, sym_text_len) != 0) | |
3482 | { | |
3483 | return; | |
3484 | } | |
3485 | ||
c906108c SS |
3486 | /* We have a match for a completion, so add SYMNAME to the current list |
3487 | of matches. Note that the name is moved to freshly malloc'd space. */ | |
3488 | ||
3489 | { | |
3490 | char *new; | |
433759f7 | 3491 | |
c906108c SS |
3492 | if (word == sym_text) |
3493 | { | |
3494 | new = xmalloc (strlen (symname) + 5); | |
3495 | strcpy (new, symname); | |
3496 | } | |
3497 | else if (word > sym_text) | |
3498 | { | |
3499 | /* Return some portion of symname. */ | |
3500 | new = xmalloc (strlen (symname) + 5); | |
3501 | strcpy (new, symname + (word - sym_text)); | |
3502 | } | |
3503 | else | |
3504 | { | |
3505 | /* Return some of SYM_TEXT plus symname. */ | |
3506 | new = xmalloc (strlen (symname) + (sym_text - word) + 5); | |
3507 | strncpy (new, word, sym_text - word); | |
3508 | new[sym_text - word] = '\0'; | |
3509 | strcat (new, symname); | |
3510 | } | |
3511 | ||
c906108c SS |
3512 | if (return_val_index + 3 > return_val_size) |
3513 | { | |
3514 | newsize = (return_val_size *= 2) * sizeof (char *); | |
3515 | return_val = (char **) xrealloc ((char *) return_val, newsize); | |
3516 | } | |
3517 | return_val[return_val_index++] = new; | |
3518 | return_val[return_val_index] = NULL; | |
3519 | } | |
3520 | } | |
3521 | ||
69636828 AF |
3522 | /* ObjC: In case we are completing on a selector, look as the msymbol |
3523 | again and feed all the selectors into the mill. */ | |
3524 | ||
3525 | static void | |
3526 | completion_list_objc_symbol (struct minimal_symbol *msymbol, char *sym_text, | |
3527 | int sym_text_len, char *text, char *word) | |
3528 | { | |
3529 | static char *tmp = NULL; | |
3530 | static unsigned int tmplen = 0; | |
9af17804 | 3531 | |
69636828 AF |
3532 | char *method, *category, *selector; |
3533 | char *tmp2 = NULL; | |
9af17804 | 3534 | |
69636828 AF |
3535 | method = SYMBOL_NATURAL_NAME (msymbol); |
3536 | ||
3537 | /* Is it a method? */ | |
3538 | if ((method[0] != '-') && (method[0] != '+')) | |
3539 | return; | |
3540 | ||
3541 | if (sym_text[0] == '[') | |
3542 | /* Complete on shortened method method. */ | |
3543 | completion_list_add_name (method + 1, sym_text, sym_text_len, text, word); | |
9af17804 | 3544 | |
69636828 AF |
3545 | while ((strlen (method) + 1) >= tmplen) |
3546 | { | |
3547 | if (tmplen == 0) | |
3548 | tmplen = 1024; | |
3549 | else | |
3550 | tmplen *= 2; | |
3551 | tmp = xrealloc (tmp, tmplen); | |
3552 | } | |
3553 | selector = strchr (method, ' '); | |
3554 | if (selector != NULL) | |
3555 | selector++; | |
9af17804 | 3556 | |
69636828 | 3557 | category = strchr (method, '('); |
9af17804 | 3558 | |
69636828 AF |
3559 | if ((category != NULL) && (selector != NULL)) |
3560 | { | |
3561 | memcpy (tmp, method, (category - method)); | |
3562 | tmp[category - method] = ' '; | |
3563 | memcpy (tmp + (category - method) + 1, selector, strlen (selector) + 1); | |
3564 | completion_list_add_name (tmp, sym_text, sym_text_len, text, word); | |
3565 | if (sym_text[0] == '[') | |
3566 | completion_list_add_name (tmp + 1, sym_text, sym_text_len, text, word); | |
3567 | } | |
9af17804 | 3568 | |
69636828 AF |
3569 | if (selector != NULL) |
3570 | { | |
3571 | /* Complete on selector only. */ | |
3572 | strcpy (tmp, selector); | |
3573 | tmp2 = strchr (tmp, ']'); | |
3574 | if (tmp2 != NULL) | |
3575 | *tmp2 = '\0'; | |
9af17804 | 3576 | |
69636828 AF |
3577 | completion_list_add_name (tmp, sym_text, sym_text_len, text, word); |
3578 | } | |
3579 | } | |
3580 | ||
3581 | /* Break the non-quoted text based on the characters which are in | |
3582 | symbols. FIXME: This should probably be language-specific. */ | |
3583 | ||
3584 | static char * | |
3585 | language_search_unquoted_string (char *text, char *p) | |
3586 | { | |
3587 | for (; p > text; --p) | |
3588 | { | |
3589 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0') | |
3590 | continue; | |
3591 | else | |
3592 | { | |
3593 | if ((current_language->la_language == language_objc)) | |
3594 | { | |
3595 | if (p[-1] == ':') /* might be part of a method name */ | |
3596 | continue; | |
3597 | else if (p[-1] == '[' && (p[-2] == '-' || p[-2] == '+')) | |
3598 | p -= 2; /* beginning of a method name */ | |
3599 | else if (p[-1] == ' ' || p[-1] == '(' || p[-1] == ')') | |
3600 | { /* might be part of a method name */ | |
3601 | char *t = p; | |
3602 | ||
3603 | /* Seeing a ' ' or a '(' is not conclusive evidence | |
3604 | that we are in the middle of a method name. However, | |
3605 | finding "-[" or "+[" should be pretty un-ambiguous. | |
3606 | Unfortunately we have to find it now to decide. */ | |
3607 | ||
3608 | while (t > text) | |
3609 | if (isalnum (t[-1]) || t[-1] == '_' || | |
3610 | t[-1] == ' ' || t[-1] == ':' || | |
3611 | t[-1] == '(' || t[-1] == ')') | |
3612 | --t; | |
3613 | else | |
3614 | break; | |
3615 | ||
3616 | if (t[-1] == '[' && (t[-2] == '-' || t[-2] == '+')) | |
3617 | p = t - 2; /* method name detected */ | |
3618 | /* else we leave with p unchanged */ | |
3619 | } | |
3620 | } | |
3621 | break; | |
3622 | } | |
3623 | } | |
3624 | return p; | |
3625 | } | |
3626 | ||
edb3359d DJ |
3627 | static void |
3628 | completion_list_add_fields (struct symbol *sym, char *sym_text, | |
3629 | int sym_text_len, char *text, char *word) | |
3630 | { | |
3631 | if (SYMBOL_CLASS (sym) == LOC_TYPEDEF) | |
3632 | { | |
3633 | struct type *t = SYMBOL_TYPE (sym); | |
3634 | enum type_code c = TYPE_CODE (t); | |
3635 | int j; | |
3636 | ||
3637 | if (c == TYPE_CODE_UNION || c == TYPE_CODE_STRUCT) | |
3638 | for (j = TYPE_N_BASECLASSES (t); j < TYPE_NFIELDS (t); j++) | |
3639 | if (TYPE_FIELD_NAME (t, j)) | |
3640 | completion_list_add_name (TYPE_FIELD_NAME (t, j), | |
3641 | sym_text, sym_text_len, text, word); | |
3642 | } | |
3643 | } | |
3644 | ||
ccefe4c4 TT |
3645 | /* Type of the user_data argument passed to add_macro_name or |
3646 | add_partial_symbol_name. The contents are simply whatever is | |
3647 | needed by completion_list_add_name. */ | |
3648 | struct add_name_data | |
9a044a89 TT |
3649 | { |
3650 | char *sym_text; | |
3651 | int sym_text_len; | |
3652 | char *text; | |
3653 | char *word; | |
3654 | }; | |
3655 | ||
3656 | /* A callback used with macro_for_each and macro_for_each_in_scope. | |
3657 | This adds a macro's name to the current completion list. */ | |
3658 | static void | |
3659 | add_macro_name (const char *name, const struct macro_definition *ignore, | |
3660 | void *user_data) | |
3661 | { | |
ccefe4c4 | 3662 | struct add_name_data *datum = (struct add_name_data *) user_data; |
433759f7 | 3663 | |
ccefe4c4 TT |
3664 | completion_list_add_name ((char *) name, |
3665 | datum->sym_text, datum->sym_text_len, | |
3666 | datum->text, datum->word); | |
3667 | } | |
3668 | ||
3669 | /* A callback for map_partial_symbol_names. */ | |
3670 | static void | |
3671 | add_partial_symbol_name (const char *name, void *user_data) | |
3672 | { | |
3673 | struct add_name_data *datum = (struct add_name_data *) user_data; | |
433759f7 | 3674 | |
9a044a89 TT |
3675 | completion_list_add_name ((char *) name, |
3676 | datum->sym_text, datum->sym_text_len, | |
3677 | datum->text, datum->word); | |
3678 | } | |
3679 | ||
c906108c | 3680 | char ** |
f55ee35c JK |
3681 | default_make_symbol_completion_list_break_on (char *text, char *word, |
3682 | const char *break_on) | |
c906108c | 3683 | { |
41d27058 JB |
3684 | /* Problem: All of the symbols have to be copied because readline |
3685 | frees them. I'm not going to worry about this; hopefully there | |
3686 | won't be that many. */ | |
3687 | ||
de4f826b DC |
3688 | struct symbol *sym; |
3689 | struct symtab *s; | |
de4f826b DC |
3690 | struct minimal_symbol *msymbol; |
3691 | struct objfile *objfile; | |
edb3359d DJ |
3692 | struct block *b; |
3693 | const struct block *surrounding_static_block, *surrounding_global_block; | |
de4f826b | 3694 | struct dict_iterator iter; |
c906108c SS |
3695 | /* The symbol we are completing on. Points in same buffer as text. */ |
3696 | char *sym_text; | |
3697 | /* Length of sym_text. */ | |
3698 | int sym_text_len; | |
ccefe4c4 | 3699 | struct add_name_data datum; |
c906108c | 3700 | |
41d27058 | 3701 | /* Now look for the symbol we are supposed to complete on. */ |
c906108c SS |
3702 | { |
3703 | char *p; | |
3704 | char quote_found; | |
3705 | char *quote_pos = NULL; | |
3706 | ||
3707 | /* First see if this is a quoted string. */ | |
3708 | quote_found = '\0'; | |
3709 | for (p = text; *p != '\0'; ++p) | |
3710 | { | |
3711 | if (quote_found != '\0') | |
3712 | { | |
3713 | if (*p == quote_found) | |
3714 | /* Found close quote. */ | |
3715 | quote_found = '\0'; | |
3716 | else if (*p == '\\' && p[1] == quote_found) | |
3717 | /* A backslash followed by the quote character | |
c5aa993b | 3718 | doesn't end the string. */ |
c906108c SS |
3719 | ++p; |
3720 | } | |
3721 | else if (*p == '\'' || *p == '"') | |
3722 | { | |
3723 | quote_found = *p; | |
3724 | quote_pos = p; | |
3725 | } | |
3726 | } | |
3727 | if (quote_found == '\'') | |
3728 | /* A string within single quotes can be a symbol, so complete on it. */ | |
3729 | sym_text = quote_pos + 1; | |
3730 | else if (quote_found == '"') | |
3731 | /* A double-quoted string is never a symbol, nor does it make sense | |
c5aa993b | 3732 | to complete it any other way. */ |
c94fdfd0 EZ |
3733 | { |
3734 | return_val = (char **) xmalloc (sizeof (char *)); | |
3735 | return_val[0] = NULL; | |
3736 | return return_val; | |
3737 | } | |
c906108c SS |
3738 | else |
3739 | { | |
3740 | /* It is not a quoted string. Break it based on the characters | |
3741 | which are in symbols. */ | |
3742 | while (p > text) | |
3743 | { | |
95699ff0 | 3744 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0' |
f55ee35c | 3745 | || p[-1] == ':' || strchr (break_on, p[-1]) != NULL) |
c906108c SS |
3746 | --p; |
3747 | else | |
3748 | break; | |
3749 | } | |
3750 | sym_text = p; | |
3751 | } | |
3752 | } | |
3753 | ||
3754 | sym_text_len = strlen (sym_text); | |
3755 | ||
3756 | return_val_size = 100; | |
3757 | return_val_index = 0; | |
3758 | return_val = (char **) xmalloc ((return_val_size + 1) * sizeof (char *)); | |
3759 | return_val[0] = NULL; | |
3760 | ||
ccefe4c4 TT |
3761 | datum.sym_text = sym_text; |
3762 | datum.sym_text_len = sym_text_len; | |
3763 | datum.text = text; | |
3764 | datum.word = word; | |
3765 | ||
c906108c SS |
3766 | /* Look through the partial symtabs for all symbols which begin |
3767 | by matching SYM_TEXT. Add each one that you find to the list. */ | |
ccefe4c4 | 3768 | map_partial_symbol_names (add_partial_symbol_name, &datum); |
c906108c SS |
3769 | |
3770 | /* At this point scan through the misc symbol vectors and add each | |
3771 | symbol you find to the list. Eventually we want to ignore | |
3772 | anything that isn't a text symbol (everything else will be | |
3773 | handled by the psymtab code above). */ | |
3774 | ||
3775 | ALL_MSYMBOLS (objfile, msymbol) | |
c5aa993b JM |
3776 | { |
3777 | QUIT; | |
3778 | COMPLETION_LIST_ADD_SYMBOL (msymbol, sym_text, sym_text_len, text, word); | |
9af17804 | 3779 | |
69636828 | 3780 | completion_list_objc_symbol (msymbol, sym_text, sym_text_len, text, word); |
c5aa993b | 3781 | } |
c906108c SS |
3782 | |
3783 | /* Search upwards from currently selected frame (so that we can | |
edb3359d DJ |
3784 | complete on local vars). Also catch fields of types defined in |
3785 | this places which match our text string. Only complete on types | |
3786 | visible from current context. */ | |
3787 | ||
3788 | b = get_selected_block (0); | |
3789 | surrounding_static_block = block_static_block (b); | |
3790 | surrounding_global_block = block_global_block (b); | |
3791 | if (surrounding_static_block != NULL) | |
3792 | while (b != surrounding_static_block) | |
3793 | { | |
3794 | QUIT; | |
c906108c | 3795 | |
edb3359d DJ |
3796 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
3797 | { | |
3798 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, | |
3799 | word); | |
3800 | completion_list_add_fields (sym, sym_text, sym_text_len, text, | |
3801 | word); | |
3802 | } | |
c5aa993b | 3803 | |
edb3359d DJ |
3804 | /* Stop when we encounter an enclosing function. Do not stop for |
3805 | non-inlined functions - the locals of the enclosing function | |
3806 | are in scope for a nested function. */ | |
3807 | if (BLOCK_FUNCTION (b) != NULL && block_inlined_p (b)) | |
3808 | break; | |
3809 | b = BLOCK_SUPERBLOCK (b); | |
3810 | } | |
c906108c | 3811 | |
edb3359d | 3812 | /* Add fields from the file's types; symbols will be added below. */ |
c906108c | 3813 | |
edb3359d DJ |
3814 | if (surrounding_static_block != NULL) |
3815 | ALL_BLOCK_SYMBOLS (surrounding_static_block, iter, sym) | |
3816 | completion_list_add_fields (sym, sym_text, sym_text_len, text, word); | |
3817 | ||
3818 | if (surrounding_global_block != NULL) | |
3819 | ALL_BLOCK_SYMBOLS (surrounding_global_block, iter, sym) | |
3820 | completion_list_add_fields (sym, sym_text, sym_text_len, text, word); | |
c906108c SS |
3821 | |
3822 | /* Go through the symtabs and check the externs and statics for | |
3823 | symbols which match. */ | |
3824 | ||
11309657 | 3825 | ALL_PRIMARY_SYMTABS (objfile, s) |
c5aa993b JM |
3826 | { |
3827 | QUIT; | |
3828 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK); | |
de4f826b | 3829 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c5aa993b | 3830 | { |
c5aa993b JM |
3831 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
3832 | } | |
3833 | } | |
c906108c | 3834 | |
11309657 | 3835 | ALL_PRIMARY_SYMTABS (objfile, s) |
c5aa993b JM |
3836 | { |
3837 | QUIT; | |
3838 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK); | |
de4f826b | 3839 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c5aa993b | 3840 | { |
c5aa993b JM |
3841 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
3842 | } | |
3843 | } | |
c906108c | 3844 | |
9a044a89 TT |
3845 | if (current_language->la_macro_expansion == macro_expansion_c) |
3846 | { | |
3847 | struct macro_scope *scope; | |
9a044a89 TT |
3848 | |
3849 | /* Add any macros visible in the default scope. Note that this | |
3850 | may yield the occasional wrong result, because an expression | |
3851 | might be evaluated in a scope other than the default. For | |
3852 | example, if the user types "break file:line if <TAB>", the | |
3853 | resulting expression will be evaluated at "file:line" -- but | |
3854 | at there does not seem to be a way to detect this at | |
3855 | completion time. */ | |
3856 | scope = default_macro_scope (); | |
3857 | if (scope) | |
3858 | { | |
3859 | macro_for_each_in_scope (scope->file, scope->line, | |
3860 | add_macro_name, &datum); | |
3861 | xfree (scope); | |
3862 | } | |
3863 | ||
3864 | /* User-defined macros are always visible. */ | |
3865 | macro_for_each (macro_user_macros, add_macro_name, &datum); | |
3866 | } | |
3867 | ||
c906108c SS |
3868 | return (return_val); |
3869 | } | |
3870 | ||
f55ee35c JK |
3871 | char ** |
3872 | default_make_symbol_completion_list (char *text, char *word) | |
3873 | { | |
3874 | return default_make_symbol_completion_list_break_on (text, word, ""); | |
3875 | } | |
3876 | ||
41d27058 JB |
3877 | /* Return a NULL terminated array of all symbols (regardless of class) |
3878 | which begin by matching TEXT. If the answer is no symbols, then | |
3879 | the return value is an array which contains only a NULL pointer. */ | |
3880 | ||
3881 | char ** | |
3882 | make_symbol_completion_list (char *text, char *word) | |
3883 | { | |
3884 | return current_language->la_make_symbol_completion_list (text, word); | |
3885 | } | |
3886 | ||
d8906c6f TJB |
3887 | /* Like make_symbol_completion_list, but suitable for use as a |
3888 | completion function. */ | |
3889 | ||
3890 | char ** | |
3891 | make_symbol_completion_list_fn (struct cmd_list_element *ignore, | |
3892 | char *text, char *word) | |
3893 | { | |
3894 | return make_symbol_completion_list (text, word); | |
3895 | } | |
3896 | ||
c94fdfd0 EZ |
3897 | /* Like make_symbol_completion_list, but returns a list of symbols |
3898 | defined in a source file FILE. */ | |
3899 | ||
3900 | char ** | |
3901 | make_file_symbol_completion_list (char *text, char *word, char *srcfile) | |
3902 | { | |
52f0bd74 AC |
3903 | struct symbol *sym; |
3904 | struct symtab *s; | |
3905 | struct block *b; | |
de4f826b | 3906 | struct dict_iterator iter; |
c94fdfd0 EZ |
3907 | /* The symbol we are completing on. Points in same buffer as text. */ |
3908 | char *sym_text; | |
3909 | /* Length of sym_text. */ | |
3910 | int sym_text_len; | |
3911 | ||
3912 | /* Now look for the symbol we are supposed to complete on. | |
3913 | FIXME: This should be language-specific. */ | |
3914 | { | |
3915 | char *p; | |
3916 | char quote_found; | |
3917 | char *quote_pos = NULL; | |
3918 | ||
3919 | /* First see if this is a quoted string. */ | |
3920 | quote_found = '\0'; | |
3921 | for (p = text; *p != '\0'; ++p) | |
3922 | { | |
3923 | if (quote_found != '\0') | |
3924 | { | |
3925 | if (*p == quote_found) | |
3926 | /* Found close quote. */ | |
3927 | quote_found = '\0'; | |
3928 | else if (*p == '\\' && p[1] == quote_found) | |
3929 | /* A backslash followed by the quote character | |
3930 | doesn't end the string. */ | |
3931 | ++p; | |
3932 | } | |
3933 | else if (*p == '\'' || *p == '"') | |
3934 | { | |
3935 | quote_found = *p; | |
3936 | quote_pos = p; | |
3937 | } | |
3938 | } | |
3939 | if (quote_found == '\'') | |
3940 | /* A string within single quotes can be a symbol, so complete on it. */ | |
3941 | sym_text = quote_pos + 1; | |
3942 | else if (quote_found == '"') | |
3943 | /* A double-quoted string is never a symbol, nor does it make sense | |
3944 | to complete it any other way. */ | |
3945 | { | |
3946 | return_val = (char **) xmalloc (sizeof (char *)); | |
3947 | return_val[0] = NULL; | |
3948 | return return_val; | |
3949 | } | |
3950 | else | |
3951 | { | |
69636828 AF |
3952 | /* Not a quoted string. */ |
3953 | sym_text = language_search_unquoted_string (text, p); | |
c94fdfd0 EZ |
3954 | } |
3955 | } | |
3956 | ||
3957 | sym_text_len = strlen (sym_text); | |
3958 | ||
3959 | return_val_size = 10; | |
3960 | return_val_index = 0; | |
3961 | return_val = (char **) xmalloc ((return_val_size + 1) * sizeof (char *)); | |
3962 | return_val[0] = NULL; | |
3963 | ||
3964 | /* Find the symtab for SRCFILE (this loads it if it was not yet read | |
3965 | in). */ | |
3966 | s = lookup_symtab (srcfile); | |
3967 | if (s == NULL) | |
3968 | { | |
3969 | /* Maybe they typed the file with leading directories, while the | |
3970 | symbol tables record only its basename. */ | |
31889e00 | 3971 | const char *tail = lbasename (srcfile); |
c94fdfd0 EZ |
3972 | |
3973 | if (tail > srcfile) | |
3974 | s = lookup_symtab (tail); | |
3975 | } | |
3976 | ||
3977 | /* If we have no symtab for that file, return an empty list. */ | |
3978 | if (s == NULL) | |
3979 | return (return_val); | |
3980 | ||
3981 | /* Go through this symtab and check the externs and statics for | |
3982 | symbols which match. */ | |
3983 | ||
3984 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK); | |
de4f826b | 3985 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c94fdfd0 | 3986 | { |
c94fdfd0 EZ |
3987 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
3988 | } | |
3989 | ||
3990 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK); | |
de4f826b | 3991 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c94fdfd0 | 3992 | { |
c94fdfd0 EZ |
3993 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
3994 | } | |
3995 | ||
3996 | return (return_val); | |
3997 | } | |
3998 | ||
3999 | /* A helper function for make_source_files_completion_list. It adds | |
4000 | another file name to a list of possible completions, growing the | |
4001 | list as necessary. */ | |
4002 | ||
4003 | static void | |
4004 | add_filename_to_list (const char *fname, char *text, char *word, | |
4005 | char ***list, int *list_used, int *list_alloced) | |
4006 | { | |
4007 | char *new; | |
4008 | size_t fnlen = strlen (fname); | |
4009 | ||
4010 | if (*list_used + 1 >= *list_alloced) | |
4011 | { | |
4012 | *list_alloced *= 2; | |
4013 | *list = (char **) xrealloc ((char *) *list, | |
4014 | *list_alloced * sizeof (char *)); | |
4015 | } | |
4016 | ||
4017 | if (word == text) | |
4018 | { | |
4019 | /* Return exactly fname. */ | |
4020 | new = xmalloc (fnlen + 5); | |
4021 | strcpy (new, fname); | |
4022 | } | |
4023 | else if (word > text) | |
4024 | { | |
4025 | /* Return some portion of fname. */ | |
4026 | new = xmalloc (fnlen + 5); | |
4027 | strcpy (new, fname + (word - text)); | |
4028 | } | |
4029 | else | |
4030 | { | |
4031 | /* Return some of TEXT plus fname. */ | |
4032 | new = xmalloc (fnlen + (text - word) + 5); | |
4033 | strncpy (new, word, text - word); | |
4034 | new[text - word] = '\0'; | |
4035 | strcat (new, fname); | |
4036 | } | |
4037 | (*list)[*list_used] = new; | |
4038 | (*list)[++*list_used] = NULL; | |
4039 | } | |
4040 | ||
4041 | static int | |
4042 | not_interesting_fname (const char *fname) | |
4043 | { | |
4044 | static const char *illegal_aliens[] = { | |
4045 | "_globals_", /* inserted by coff_symtab_read */ | |
4046 | NULL | |
4047 | }; | |
4048 | int i; | |
4049 | ||
4050 | for (i = 0; illegal_aliens[i]; i++) | |
4051 | { | |
4052 | if (strcmp (fname, illegal_aliens[i]) == 0) | |
4053 | return 1; | |
4054 | } | |
4055 | return 0; | |
4056 | } | |
4057 | ||
ccefe4c4 TT |
4058 | /* An object of this type is passed as the user_data argument to |
4059 | map_partial_symbol_filenames. */ | |
4060 | struct add_partial_filename_data | |
4061 | { | |
4062 | int *first; | |
4063 | char *text; | |
4064 | char *word; | |
4065 | int text_len; | |
4066 | char ***list; | |
4067 | int *list_used; | |
4068 | int *list_alloced; | |
4069 | }; | |
4070 | ||
4071 | /* A callback for map_partial_symbol_filenames. */ | |
4072 | static void | |
4073 | maybe_add_partial_symtab_filename (const char *fullname, const char *filename, | |
4074 | void *user_data) | |
4075 | { | |
4076 | struct add_partial_filename_data *data = user_data; | |
4077 | ||
4078 | if (not_interesting_fname (filename)) | |
4079 | return; | |
4080 | if (!filename_seen (filename, 1, data->first) | |
4081 | #if HAVE_DOS_BASED_FILE_SYSTEM | |
4082 | && strncasecmp (filename, data->text, data->text_len) == 0 | |
4083 | #else | |
4084 | && strncmp (filename, data->text, data->text_len) == 0 | |
4085 | #endif | |
4086 | ) | |
4087 | { | |
4088 | /* This file matches for a completion; add it to the | |
4089 | current list of matches. */ | |
4090 | add_filename_to_list (filename, data->text, data->word, | |
4091 | data->list, data->list_used, data->list_alloced); | |
4092 | } | |
4093 | else | |
4094 | { | |
4095 | const char *base_name = lbasename (filename); | |
433759f7 | 4096 | |
ccefe4c4 TT |
4097 | if (base_name != filename |
4098 | && !filename_seen (base_name, 1, data->first) | |
4099 | #if HAVE_DOS_BASED_FILE_SYSTEM | |
4100 | && strncasecmp (base_name, data->text, data->text_len) == 0 | |
4101 | #else | |
4102 | && strncmp (base_name, data->text, data->text_len) == 0 | |
4103 | #endif | |
4104 | ) | |
4105 | add_filename_to_list (base_name, data->text, data->word, | |
4106 | data->list, data->list_used, data->list_alloced); | |
4107 | } | |
4108 | } | |
4109 | ||
c94fdfd0 EZ |
4110 | /* Return a NULL terminated array of all source files whose names |
4111 | begin with matching TEXT. The file names are looked up in the | |
4112 | symbol tables of this program. If the answer is no matchess, then | |
4113 | the return value is an array which contains only a NULL pointer. */ | |
4114 | ||
4115 | char ** | |
4116 | make_source_files_completion_list (char *text, char *word) | |
4117 | { | |
52f0bd74 | 4118 | struct symtab *s; |
52f0bd74 | 4119 | struct objfile *objfile; |
c94fdfd0 EZ |
4120 | int first = 1; |
4121 | int list_alloced = 1; | |
4122 | int list_used = 0; | |
4123 | size_t text_len = strlen (text); | |
4124 | char **list = (char **) xmalloc (list_alloced * sizeof (char *)); | |
31889e00 | 4125 | const char *base_name; |
ccefe4c4 | 4126 | struct add_partial_filename_data datum; |
c94fdfd0 EZ |
4127 | |
4128 | list[0] = NULL; | |
4129 | ||
4130 | if (!have_full_symbols () && !have_partial_symbols ()) | |
4131 | return list; | |
4132 | ||
4133 | ALL_SYMTABS (objfile, s) | |
4134 | { | |
4135 | if (not_interesting_fname (s->filename)) | |
4136 | continue; | |
4137 | if (!filename_seen (s->filename, 1, &first) | |
4138 | #if HAVE_DOS_BASED_FILE_SYSTEM | |
4139 | && strncasecmp (s->filename, text, text_len) == 0 | |
4140 | #else | |
4141 | && strncmp (s->filename, text, text_len) == 0 | |
4142 | #endif | |
4143 | ) | |
4144 | { | |
4145 | /* This file matches for a completion; add it to the current | |
4146 | list of matches. */ | |
4147 | add_filename_to_list (s->filename, text, word, | |
4148 | &list, &list_used, &list_alloced); | |
4149 | } | |
4150 | else | |
4151 | { | |
4152 | /* NOTE: We allow the user to type a base name when the | |
4153 | debug info records leading directories, but not the other | |
4154 | way around. This is what subroutines of breakpoint | |
4155 | command do when they parse file names. */ | |
31889e00 | 4156 | base_name = lbasename (s->filename); |
c94fdfd0 EZ |
4157 | if (base_name != s->filename |
4158 | && !filename_seen (base_name, 1, &first) | |
4159 | #if HAVE_DOS_BASED_FILE_SYSTEM | |
4160 | && strncasecmp (base_name, text, text_len) == 0 | |
4161 | #else | |
4162 | && strncmp (base_name, text, text_len) == 0 | |
4163 | #endif | |
4164 | ) | |
4165 | add_filename_to_list (base_name, text, word, | |
4166 | &list, &list_used, &list_alloced); | |
4167 | } | |
4168 | } | |
4169 | ||
ccefe4c4 TT |
4170 | datum.first = &first; |
4171 | datum.text = text; | |
4172 | datum.word = word; | |
4173 | datum.text_len = text_len; | |
4174 | datum.list = &list; | |
4175 | datum.list_used = &list_used; | |
4176 | datum.list_alloced = &list_alloced; | |
4177 | map_partial_symbol_filenames (maybe_add_partial_symtab_filename, &datum); | |
c94fdfd0 EZ |
4178 | |
4179 | return list; | |
4180 | } | |
4181 | ||
c906108c SS |
4182 | /* Determine if PC is in the prologue of a function. The prologue is the area |
4183 | between the first instruction of a function, and the first executable line. | |
4184 | Returns 1 if PC *might* be in prologue, 0 if definately *not* in prologue. | |
4185 | ||
4186 | If non-zero, func_start is where we think the prologue starts, possibly | |
4187 | by previous examination of symbol table information. | |
4188 | */ | |
4189 | ||
4190 | int | |
d80b854b | 4191 | in_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR func_start) |
c906108c SS |
4192 | { |
4193 | struct symtab_and_line sal; | |
4194 | CORE_ADDR func_addr, func_end; | |
4195 | ||
54cf9c03 EZ |
4196 | /* We have several sources of information we can consult to figure |
4197 | this out. | |
4198 | - Compilers usually emit line number info that marks the prologue | |
4199 | as its own "source line". So the ending address of that "line" | |
4200 | is the end of the prologue. If available, this is the most | |
4201 | reliable method. | |
4202 | - The minimal symbols and partial symbols, which can usually tell | |
4203 | us the starting and ending addresses of a function. | |
4204 | - If we know the function's start address, we can call the | |
a433963d | 4205 | architecture-defined gdbarch_skip_prologue function to analyze the |
54cf9c03 EZ |
4206 | instruction stream and guess where the prologue ends. |
4207 | - Our `func_start' argument; if non-zero, this is the caller's | |
4208 | best guess as to the function's entry point. At the time of | |
4209 | this writing, handle_inferior_event doesn't get this right, so | |
4210 | it should be our last resort. */ | |
4211 | ||
4212 | /* Consult the partial symbol table, to find which function | |
4213 | the PC is in. */ | |
4214 | if (! find_pc_partial_function (pc, NULL, &func_addr, &func_end)) | |
4215 | { | |
4216 | CORE_ADDR prologue_end; | |
c906108c | 4217 | |
54cf9c03 EZ |
4218 | /* We don't even have minsym information, so fall back to using |
4219 | func_start, if given. */ | |
4220 | if (! func_start) | |
4221 | return 1; /* We *might* be in a prologue. */ | |
c906108c | 4222 | |
d80b854b | 4223 | prologue_end = gdbarch_skip_prologue (gdbarch, func_start); |
c906108c | 4224 | |
54cf9c03 EZ |
4225 | return func_start <= pc && pc < prologue_end; |
4226 | } | |
c906108c | 4227 | |
54cf9c03 EZ |
4228 | /* If we have line number information for the function, that's |
4229 | usually pretty reliable. */ | |
4230 | sal = find_pc_line (func_addr, 0); | |
c906108c | 4231 | |
54cf9c03 EZ |
4232 | /* Now sal describes the source line at the function's entry point, |
4233 | which (by convention) is the prologue. The end of that "line", | |
4234 | sal.end, is the end of the prologue. | |
4235 | ||
4236 | Note that, for functions whose source code is all on a single | |
4237 | line, the line number information doesn't always end up this way. | |
4238 | So we must verify that our purported end-of-prologue address is | |
4239 | *within* the function, not at its start or end. */ | |
4240 | if (sal.line == 0 | |
4241 | || sal.end <= func_addr | |
4242 | || func_end <= sal.end) | |
4243 | { | |
4244 | /* We don't have any good line number info, so use the minsym | |
4245 | information, together with the architecture-specific prologue | |
4246 | scanning code. */ | |
d80b854b | 4247 | CORE_ADDR prologue_end = gdbarch_skip_prologue (gdbarch, func_addr); |
c906108c | 4248 | |
54cf9c03 EZ |
4249 | return func_addr <= pc && pc < prologue_end; |
4250 | } | |
c906108c | 4251 | |
54cf9c03 EZ |
4252 | /* We have line number info, and it looks good. */ |
4253 | return func_addr <= pc && pc < sal.end; | |
c906108c SS |
4254 | } |
4255 | ||
634aa483 AC |
4256 | /* Given PC at the function's start address, attempt to find the |
4257 | prologue end using SAL information. Return zero if the skip fails. | |
4258 | ||
4259 | A non-optimized prologue traditionally has one SAL for the function | |
4260 | and a second for the function body. A single line function has | |
4261 | them both pointing at the same line. | |
4262 | ||
4263 | An optimized prologue is similar but the prologue may contain | |
4264 | instructions (SALs) from the instruction body. Need to skip those | |
4265 | while not getting into the function body. | |
4266 | ||
4267 | The functions end point and an increasing SAL line are used as | |
4268 | indicators of the prologue's endpoint. | |
4269 | ||
4270 | This code is based on the function refine_prologue_limit (versions | |
4271 | found in both ia64 and ppc). */ | |
4272 | ||
4273 | CORE_ADDR | |
d80b854b | 4274 | skip_prologue_using_sal (struct gdbarch *gdbarch, CORE_ADDR func_addr) |
634aa483 AC |
4275 | { |
4276 | struct symtab_and_line prologue_sal; | |
4277 | CORE_ADDR start_pc; | |
4278 | CORE_ADDR end_pc; | |
d54be744 | 4279 | struct block *bl; |
634aa483 AC |
4280 | |
4281 | /* Get an initial range for the function. */ | |
4282 | find_pc_partial_function (func_addr, NULL, &start_pc, &end_pc); | |
d80b854b | 4283 | start_pc += gdbarch_deprecated_function_start_offset (gdbarch); |
634aa483 AC |
4284 | |
4285 | prologue_sal = find_pc_line (start_pc, 0); | |
4286 | if (prologue_sal.line != 0) | |
4287 | { | |
d54be744 DJ |
4288 | /* For langauges other than assembly, treat two consecutive line |
4289 | entries at the same address as a zero-instruction prologue. | |
4290 | The GNU assembler emits separate line notes for each instruction | |
4291 | in a multi-instruction macro, but compilers generally will not | |
4292 | do this. */ | |
4293 | if (prologue_sal.symtab->language != language_asm) | |
4294 | { | |
4295 | struct linetable *linetable = LINETABLE (prologue_sal.symtab); | |
d54be744 DJ |
4296 | int idx = 0; |
4297 | ||
4298 | /* Skip any earlier lines, and any end-of-sequence marker | |
4299 | from a previous function. */ | |
4300 | while (linetable->item[idx].pc != prologue_sal.pc | |
4301 | || linetable->item[idx].line == 0) | |
4302 | idx++; | |
4303 | ||
4304 | if (idx+1 < linetable->nitems | |
4305 | && linetable->item[idx+1].line != 0 | |
4306 | && linetable->item[idx+1].pc == start_pc) | |
4307 | return start_pc; | |
4308 | } | |
4309 | ||
576c2025 FF |
4310 | /* If there is only one sal that covers the entire function, |
4311 | then it is probably a single line function, like | |
4312 | "foo(){}". */ | |
91934273 | 4313 | if (prologue_sal.end >= end_pc) |
4e463ff5 | 4314 | return 0; |
d54be744 | 4315 | |
634aa483 AC |
4316 | while (prologue_sal.end < end_pc) |
4317 | { | |
4318 | struct symtab_and_line sal; | |
4319 | ||
4320 | sal = find_pc_line (prologue_sal.end, 0); | |
4321 | if (sal.line == 0) | |
4322 | break; | |
4323 | /* Assume that a consecutive SAL for the same (or larger) | |
4324 | line mark the prologue -> body transition. */ | |
4325 | if (sal.line >= prologue_sal.line) | |
4326 | break; | |
edb3359d DJ |
4327 | |
4328 | /* The line number is smaller. Check that it's from the | |
4329 | same function, not something inlined. If it's inlined, | |
4330 | then there is no point comparing the line numbers. */ | |
4331 | bl = block_for_pc (prologue_sal.end); | |
4332 | while (bl) | |
4333 | { | |
4334 | if (block_inlined_p (bl)) | |
4335 | break; | |
4336 | if (BLOCK_FUNCTION (bl)) | |
4337 | { | |
4338 | bl = NULL; | |
4339 | break; | |
4340 | } | |
4341 | bl = BLOCK_SUPERBLOCK (bl); | |
4342 | } | |
4343 | if (bl != NULL) | |
4344 | break; | |
4345 | ||
634aa483 AC |
4346 | /* The case in which compiler's optimizer/scheduler has |
4347 | moved instructions into the prologue. We look ahead in | |
4348 | the function looking for address ranges whose | |
4349 | corresponding line number is less the first one that we | |
4350 | found for the function. This is more conservative then | |
4351 | refine_prologue_limit which scans a large number of SALs | |
4352 | looking for any in the prologue */ | |
4353 | prologue_sal = sal; | |
4354 | } | |
4355 | } | |
d54be744 DJ |
4356 | |
4357 | if (prologue_sal.end < end_pc) | |
4358 | /* Return the end of this line, or zero if we could not find a | |
4359 | line. */ | |
4360 | return prologue_sal.end; | |
4361 | else | |
4362 | /* Don't return END_PC, which is past the end of the function. */ | |
4363 | return prologue_sal.pc; | |
634aa483 | 4364 | } |
c906108c | 4365 | \f |
50641945 FN |
4366 | struct symtabs_and_lines |
4367 | decode_line_spec (char *string, int funfirstline) | |
4368 | { | |
4369 | struct symtabs_and_lines sals; | |
0378c332 | 4370 | struct symtab_and_line cursal; |
9af17804 | 4371 | |
50641945 | 4372 | if (string == 0) |
8a3fe4f8 | 4373 | error (_("Empty line specification.")); |
9af17804 | 4374 | |
0378c332 | 4375 | /* We use whatever is set as the current source line. We do not try |
9af17804 | 4376 | and get a default or it will recursively call us! */ |
0378c332 | 4377 | cursal = get_current_source_symtab_and_line (); |
9af17804 | 4378 | |
50641945 | 4379 | sals = decode_line_1 (&string, funfirstline, |
0378c332 | 4380 | cursal.symtab, cursal.line, |
bffe1ece | 4381 | (char ***) NULL, NULL); |
0378c332 | 4382 | |
50641945 | 4383 | if (*string) |
8a3fe4f8 | 4384 | error (_("Junk at end of line specification: %s"), string); |
50641945 FN |
4385 | return sals; |
4386 | } | |
c5aa993b | 4387 | |
51cc5b07 AC |
4388 | /* Track MAIN */ |
4389 | static char *name_of_main; | |
4390 | ||
4391 | void | |
4392 | set_main_name (const char *name) | |
4393 | { | |
4394 | if (name_of_main != NULL) | |
4395 | { | |
4396 | xfree (name_of_main); | |
4397 | name_of_main = NULL; | |
4398 | } | |
4399 | if (name != NULL) | |
4400 | { | |
4401 | name_of_main = xstrdup (name); | |
4402 | } | |
4403 | } | |
4404 | ||
ea53e89f JB |
4405 | /* Deduce the name of the main procedure, and set NAME_OF_MAIN |
4406 | accordingly. */ | |
4407 | ||
4408 | static void | |
4409 | find_main_name (void) | |
4410 | { | |
cd6c7346 | 4411 | const char *new_main_name; |
ea53e89f JB |
4412 | |
4413 | /* Try to see if the main procedure is in Ada. */ | |
4414 | /* FIXME: brobecker/2005-03-07: Another way of doing this would | |
4415 | be to add a new method in the language vector, and call this | |
4416 | method for each language until one of them returns a non-empty | |
4417 | name. This would allow us to remove this hard-coded call to | |
4418 | an Ada function. It is not clear that this is a better approach | |
4419 | at this point, because all methods need to be written in a way | |
4420 | such that false positives never be returned. For instance, it is | |
4421 | important that a method does not return a wrong name for the main | |
4422 | procedure if the main procedure is actually written in a different | |
4423 | language. It is easy to guaranty this with Ada, since we use a | |
4424 | special symbol generated only when the main in Ada to find the name | |
4425 | of the main procedure. It is difficult however to see how this can | |
4426 | be guarantied for languages such as C, for instance. This suggests | |
4427 | that order of call for these methods becomes important, which means | |
4428 | a more complicated approach. */ | |
4429 | new_main_name = ada_main_name (); | |
4430 | if (new_main_name != NULL) | |
9af17804 | 4431 | { |
ea53e89f JB |
4432 | set_main_name (new_main_name); |
4433 | return; | |
4434 | } | |
4435 | ||
cd6c7346 PM |
4436 | new_main_name = pascal_main_name (); |
4437 | if (new_main_name != NULL) | |
9af17804 | 4438 | { |
cd6c7346 PM |
4439 | set_main_name (new_main_name); |
4440 | return; | |
4441 | } | |
4442 | ||
ea53e89f JB |
4443 | /* The languages above didn't identify the name of the main procedure. |
4444 | Fallback to "main". */ | |
4445 | set_main_name ("main"); | |
4446 | } | |
4447 | ||
51cc5b07 AC |
4448 | char * |
4449 | main_name (void) | |
4450 | { | |
ea53e89f JB |
4451 | if (name_of_main == NULL) |
4452 | find_main_name (); | |
4453 | ||
4454 | return name_of_main; | |
51cc5b07 AC |
4455 | } |
4456 | ||
ea53e89f JB |
4457 | /* Handle ``executable_changed'' events for the symtab module. */ |
4458 | ||
4459 | static void | |
781b42b0 | 4460 | symtab_observer_executable_changed (void) |
ea53e89f JB |
4461 | { |
4462 | /* NAME_OF_MAIN may no longer be the same, so reset it for now. */ | |
4463 | set_main_name (NULL); | |
4464 | } | |
51cc5b07 | 4465 | |
ed0616c6 VP |
4466 | /* Helper to expand_line_sal below. Appends new sal to SAL, |
4467 | initializing it from SYMTAB, LINENO and PC. */ | |
4468 | static void | |
4469 | append_expanded_sal (struct symtabs_and_lines *sal, | |
6c95b8df | 4470 | struct program_space *pspace, |
ed0616c6 VP |
4471 | struct symtab *symtab, |
4472 | int lineno, CORE_ADDR pc) | |
4473 | { | |
9af17804 DE |
4474 | sal->sals = xrealloc (sal->sals, |
4475 | sizeof (sal->sals[0]) | |
ed0616c6 VP |
4476 | * (sal->nelts + 1)); |
4477 | init_sal (sal->sals + sal->nelts); | |
6c95b8df | 4478 | sal->sals[sal->nelts].pspace = pspace; |
ed0616c6 VP |
4479 | sal->sals[sal->nelts].symtab = symtab; |
4480 | sal->sals[sal->nelts].section = NULL; | |
4481 | sal->sals[sal->nelts].end = 0; | |
9af17804 | 4482 | sal->sals[sal->nelts].line = lineno; |
ed0616c6 | 4483 | sal->sals[sal->nelts].pc = pc; |
9af17804 | 4484 | ++sal->nelts; |
ed0616c6 VP |
4485 | } |
4486 | ||
aad80b26 | 4487 | /* Helper to expand_line_sal below. Search in the symtabs for any |
3ffc00b8 JB |
4488 | linetable entry that exactly matches FULLNAME and LINENO and append |
4489 | them to RET. If FULLNAME is NULL or if a symtab has no full name, | |
4490 | use FILENAME and LINENO instead. If there is at least one match, | |
4491 | return 1; otherwise, return 0, and return the best choice in BEST_ITEM | |
4492 | and BEST_SYMTAB. */ | |
aad80b26 JG |
4493 | |
4494 | static int | |
3ffc00b8 | 4495 | append_exact_match_to_sals (char *filename, char *fullname, int lineno, |
aad80b26 JG |
4496 | struct symtabs_and_lines *ret, |
4497 | struct linetable_entry **best_item, | |
4498 | struct symtab **best_symtab) | |
4499 | { | |
6c95b8df | 4500 | struct program_space *pspace; |
aad80b26 JG |
4501 | struct objfile *objfile; |
4502 | struct symtab *symtab; | |
4503 | int exact = 0; | |
4504 | int j; | |
4505 | *best_item = 0; | |
4506 | *best_symtab = 0; | |
6c95b8df PA |
4507 | |
4508 | ALL_PSPACES (pspace) | |
4509 | ALL_PSPACE_SYMTABS (pspace, objfile, symtab) | |
aad80b26 | 4510 | { |
3ffc00b8 | 4511 | if (FILENAME_CMP (filename, symtab->filename) == 0) |
aad80b26 JG |
4512 | { |
4513 | struct linetable *l; | |
4514 | int len; | |
433759f7 | 4515 | |
3ffc00b8 JB |
4516 | if (fullname != NULL |
4517 | && symtab_to_fullname (symtab) != NULL | |
4518 | && FILENAME_CMP (fullname, symtab->fullname) != 0) | |
4519 | continue; | |
aad80b26 JG |
4520 | l = LINETABLE (symtab); |
4521 | if (!l) | |
4522 | continue; | |
4523 | len = l->nitems; | |
4524 | ||
4525 | for (j = 0; j < len; j++) | |
4526 | { | |
4527 | struct linetable_entry *item = &(l->item[j]); | |
4528 | ||
4529 | if (item->line == lineno) | |
4530 | { | |
4531 | exact = 1; | |
6c95b8df PA |
4532 | append_expanded_sal (ret, objfile->pspace, |
4533 | symtab, lineno, item->pc); | |
aad80b26 JG |
4534 | } |
4535 | else if (!exact && item->line > lineno | |
4536 | && (*best_item == NULL | |
4537 | || item->line < (*best_item)->line)) | |
4538 | { | |
4539 | *best_item = item; | |
4540 | *best_symtab = symtab; | |
4541 | } | |
4542 | } | |
4543 | } | |
4544 | } | |
4545 | return exact; | |
4546 | } | |
4547 | ||
6c95b8df PA |
4548 | /* Compute a set of all sals in all program spaces that correspond to |
4549 | same file and line as SAL and return those. If there are several | |
4550 | sals that belong to the same block, only one sal for the block is | |
4551 | included in results. */ | |
9af17804 | 4552 | |
ed0616c6 VP |
4553 | struct symtabs_and_lines |
4554 | expand_line_sal (struct symtab_and_line sal) | |
4555 | { | |
952a6d41 | 4556 | struct symtabs_and_lines ret; |
ed0616c6 VP |
4557 | int i, j; |
4558 | struct objfile *objfile; | |
ed0616c6 VP |
4559 | int lineno; |
4560 | int deleted = 0; | |
4561 | struct block **blocks = NULL; | |
4562 | int *filter; | |
6c95b8df | 4563 | struct cleanup *old_chain; |
ed0616c6 VP |
4564 | |
4565 | ret.nelts = 0; | |
4566 | ret.sals = NULL; | |
4567 | ||
6c95b8df | 4568 | /* Only expand sals that represent file.c:line. */ |
ed0616c6 VP |
4569 | if (sal.symtab == NULL || sal.line == 0 || sal.pc != 0) |
4570 | { | |
4571 | ret.sals = xmalloc (sizeof (struct symtab_and_line)); | |
4572 | ret.sals[0] = sal; | |
4573 | ret.nelts = 1; | |
4574 | return ret; | |
4575 | } | |
4576 | else | |
4577 | { | |
6c95b8df | 4578 | struct program_space *pspace; |
ed0616c6 VP |
4579 | struct linetable_entry *best_item = 0; |
4580 | struct symtab *best_symtab = 0; | |
4581 | int exact = 0; | |
6c95b8df | 4582 | char *match_filename; |
ed0616c6 VP |
4583 | |
4584 | lineno = sal.line; | |
6c95b8df | 4585 | match_filename = sal.symtab->filename; |
ed0616c6 | 4586 | |
9af17804 DE |
4587 | /* We need to find all symtabs for a file which name |
4588 | is described by sal. We cannot just directly | |
ed0616c6 | 4589 | iterate over symtabs, since a symtab might not be |
9af17804 | 4590 | yet created. We also cannot iterate over psymtabs, |
ed0616c6 VP |
4591 | calling PSYMTAB_TO_SYMTAB and working on that symtab, |
4592 | since PSYMTAB_TO_SYMTAB will return NULL for psymtab | |
9af17804 | 4593 | corresponding to an included file. Therefore, we do |
ed0616c6 VP |
4594 | first pass over psymtabs, reading in those with |
4595 | the right name. Then, we iterate over symtabs, knowing | |
4596 | that all symtabs we're interested in are loaded. */ | |
4597 | ||
6c95b8df PA |
4598 | old_chain = save_current_program_space (); |
4599 | ALL_PSPACES (pspace) | |
ccefe4c4 TT |
4600 | { |
4601 | set_current_program_space (pspace); | |
4602 | ALL_PSPACE_OBJFILES (pspace, objfile) | |
ed0616c6 | 4603 | { |
ccefe4c4 TT |
4604 | if (objfile->sf) |
4605 | objfile->sf->qf->expand_symtabs_with_filename (objfile, | |
4606 | sal.symtab->filename); | |
ed0616c6 | 4607 | } |
ccefe4c4 | 4608 | } |
6c95b8df | 4609 | do_cleanups (old_chain); |
ed0616c6 | 4610 | |
aad80b26 JG |
4611 | /* Now search the symtab for exact matches and append them. If |
4612 | none is found, append the best_item and all its exact | |
4613 | matches. */ | |
3ffc00b8 JB |
4614 | symtab_to_fullname (sal.symtab); |
4615 | exact = append_exact_match_to_sals (sal.symtab->filename, | |
4616 | sal.symtab->fullname, lineno, | |
aad80b26 | 4617 | &ret, &best_item, &best_symtab); |
ed0616c6 | 4618 | if (!exact && best_item) |
3ffc00b8 JB |
4619 | append_exact_match_to_sals (best_symtab->filename, |
4620 | best_symtab->fullname, best_item->line, | |
aad80b26 | 4621 | &ret, &best_item, &best_symtab); |
ed0616c6 VP |
4622 | } |
4623 | ||
4624 | /* For optimized code, compiler can scatter one source line accross | |
4625 | disjoint ranges of PC values, even when no duplicate functions | |
4626 | or inline functions are involved. For example, 'for (;;)' inside | |
4627 | non-template non-inline non-ctor-or-dtor function can result | |
4628 | in two PC ranges. In this case, we don't want to set breakpoint | |
4629 | on first PC of each range. To filter such cases, we use containing | |
4630 | blocks -- for each PC found above we see if there are other PCs | |
9af17804 | 4631 | that are in the same block. If yes, the other PCs are filtered out. */ |
ed0616c6 | 4632 | |
6c95b8df | 4633 | old_chain = save_current_program_space (); |
db009c8a JB |
4634 | filter = alloca (ret.nelts * sizeof (int)); |
4635 | blocks = alloca (ret.nelts * sizeof (struct block *)); | |
ed0616c6 VP |
4636 | for (i = 0; i < ret.nelts; ++i) |
4637 | { | |
6c95b8df PA |
4638 | set_current_program_space (ret.sals[i].pspace); |
4639 | ||
ed0616c6 | 4640 | filter[i] = 1; |
6c95b8df PA |
4641 | blocks[i] = block_for_pc_sect (ret.sals[i].pc, ret.sals[i].section); |
4642 | ||
ed0616c6 | 4643 | } |
6c95b8df | 4644 | do_cleanups (old_chain); |
ed0616c6 VP |
4645 | |
4646 | for (i = 0; i < ret.nelts; ++i) | |
4647 | if (blocks[i] != NULL) | |
4648 | for (j = i+1; j < ret.nelts; ++j) | |
4649 | if (blocks[j] == blocks[i]) | |
4650 | { | |
4651 | filter[j] = 0; | |
4652 | ++deleted; | |
4653 | break; | |
4654 | } | |
9af17804 | 4655 | |
ed0616c6 | 4656 | { |
9af17804 | 4657 | struct symtab_and_line *final = |
ed0616c6 | 4658 | xmalloc (sizeof (struct symtab_and_line) * (ret.nelts-deleted)); |
9af17804 | 4659 | |
ed0616c6 VP |
4660 | for (i = 0, j = 0; i < ret.nelts; ++i) |
4661 | if (filter[i]) | |
4662 | final[j++] = ret.sals[i]; | |
9af17804 | 4663 | |
ed0616c6 VP |
4664 | ret.nelts -= deleted; |
4665 | xfree (ret.sals); | |
4666 | ret.sals = final; | |
4667 | } | |
4668 | ||
4669 | return ret; | |
4670 | } | |
4671 | ||
a6c727b2 DJ |
4672 | /* Return 1 if the supplied producer string matches the ARM RealView |
4673 | compiler (armcc). */ | |
4674 | ||
4675 | int | |
4676 | producer_is_realview (const char *producer) | |
4677 | { | |
4678 | static const char *const arm_idents[] = { | |
4679 | "ARM C Compiler, ADS", | |
4680 | "Thumb C Compiler, ADS", | |
4681 | "ARM C++ Compiler, ADS", | |
4682 | "Thumb C++ Compiler, ADS", | |
4683 | "ARM/Thumb C/C++ Compiler, RVCT", | |
4684 | "ARM C/C++ Compiler, RVCT" | |
4685 | }; | |
4686 | int i; | |
4687 | ||
4688 | if (producer == NULL) | |
4689 | return 0; | |
4690 | ||
4691 | for (i = 0; i < ARRAY_SIZE (arm_idents); i++) | |
4692 | if (strncmp (producer, arm_idents[i], strlen (arm_idents[i])) == 0) | |
4693 | return 1; | |
4694 | ||
4695 | return 0; | |
4696 | } | |
ed0616c6 | 4697 | |
c906108c | 4698 | void |
fba45db2 | 4699 | _initialize_symtab (void) |
c906108c | 4700 | { |
1bedd215 AC |
4701 | add_info ("variables", variables_info, _("\ |
4702 | All global and static variable names, or those matching REGEXP.")); | |
c906108c | 4703 | if (dbx_commands) |
1bedd215 AC |
4704 | add_com ("whereis", class_info, variables_info, _("\ |
4705 | All global and static variable names, or those matching REGEXP.")); | |
c906108c SS |
4706 | |
4707 | add_info ("functions", functions_info, | |
1bedd215 | 4708 | _("All function names, or those matching REGEXP.")); |
c906108c SS |
4709 | |
4710 | /* FIXME: This command has at least the following problems: | |
4711 | 1. It prints builtin types (in a very strange and confusing fashion). | |
4712 | 2. It doesn't print right, e.g. with | |
c5aa993b JM |
4713 | typedef struct foo *FOO |
4714 | type_print prints "FOO" when we want to make it (in this situation) | |
4715 | print "struct foo *". | |
c906108c SS |
4716 | I also think "ptype" or "whatis" is more likely to be useful (but if |
4717 | there is much disagreement "info types" can be fixed). */ | |
4718 | add_info ("types", types_info, | |
1bedd215 | 4719 | _("All type names, or those matching REGEXP.")); |
c906108c | 4720 | |
c906108c | 4721 | add_info ("sources", sources_info, |
1bedd215 | 4722 | _("Source files in the program.")); |
c906108c SS |
4723 | |
4724 | add_com ("rbreak", class_breakpoint, rbreak_command, | |
1bedd215 | 4725 | _("Set a breakpoint for all functions matching REGEXP.")); |
c906108c SS |
4726 | |
4727 | if (xdb_commands) | |
4728 | { | |
1bedd215 AC |
4729 | add_com ("lf", class_info, sources_info, |
4730 | _("Source files in the program")); | |
4731 | add_com ("lg", class_info, variables_info, _("\ | |
4732 | All global and static variable names, or those matching REGEXP.")); | |
c906108c SS |
4733 | } |
4734 | ||
717d2f5a JB |
4735 | add_setshow_enum_cmd ("multiple-symbols", no_class, |
4736 | multiple_symbols_modes, &multiple_symbols_mode, | |
4737 | _("\ | |
4738 | Set the debugger behavior when more than one symbol are possible matches\n\ | |
4739 | in an expression."), _("\ | |
4740 | Show how the debugger handles ambiguities in expressions."), _("\ | |
4741 | Valid values are \"ask\", \"all\", \"cancel\", and the default is \"all\"."), | |
4742 | NULL, NULL, &setlist, &showlist); | |
4743 | ||
ea53e89f | 4744 | observer_attach_executable_changed (symtab_observer_executable_changed); |
c906108c | 4745 | } |