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