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Commit | Line | Data |
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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, |
faf68db7 TT |
94 | int *is_a_field_of_this, |
95 | int for_type); | |
fba7f19c | 96 | |
e4051eeb DC |
97 | static |
98 | struct symbol *lookup_symbol_aux_local (const char *name, | |
e4051eeb | 99 | const struct block *block, |
13387711 SW |
100 | const domain_enum domain, |
101 | enum language language); | |
8155455b DC |
102 | |
103 | static | |
104 | struct symbol *lookup_symbol_aux_symtabs (int block_index, | |
105 | const char *name, | |
21b556f4 | 106 | const domain_enum domain); |
8155455b DC |
107 | |
108 | static | |
ccefe4c4 TT |
109 | struct symbol *lookup_symbol_aux_quick (struct objfile *objfile, |
110 | int block_index, | |
111 | const char *name, | |
112 | const domain_enum domain); | |
c906108c | 113 | |
176620f1 | 114 | static void print_symbol_info (domain_enum, |
a14ed312 | 115 | struct symtab *, struct symbol *, int, char *); |
c906108c | 116 | |
a14ed312 | 117 | static void print_msymbol_info (struct minimal_symbol *); |
c906108c | 118 | |
176620f1 | 119 | static void symtab_symbol_info (char *, domain_enum, int); |
c906108c | 120 | |
a14ed312 | 121 | void _initialize_symtab (void); |
c906108c SS |
122 | |
123 | /* */ | |
124 | ||
717d2f5a JB |
125 | /* Allow the user to configure the debugger behavior with respect |
126 | to multiple-choice menus when more than one symbol matches during | |
127 | a symbol lookup. */ | |
128 | ||
7fc830e2 MK |
129 | const char multiple_symbols_ask[] = "ask"; |
130 | const char multiple_symbols_all[] = "all"; | |
131 | const char multiple_symbols_cancel[] = "cancel"; | |
717d2f5a JB |
132 | static const char *multiple_symbols_modes[] = |
133 | { | |
134 | multiple_symbols_ask, | |
135 | multiple_symbols_all, | |
136 | multiple_symbols_cancel, | |
137 | NULL | |
138 | }; | |
139 | static const char *multiple_symbols_mode = multiple_symbols_all; | |
140 | ||
141 | /* Read-only accessor to AUTO_SELECT_MODE. */ | |
142 | ||
143 | const char * | |
144 | multiple_symbols_select_mode (void) | |
145 | { | |
146 | return multiple_symbols_mode; | |
147 | } | |
148 | ||
c906108c | 149 | /* Block in which the most recently searched-for symbol was found. |
9af17804 | 150 | Might be better to make this a parameter to lookup_symbol and |
c906108c SS |
151 | value_of_this. */ |
152 | ||
153 | const struct block *block_found; | |
154 | ||
c906108c SS |
155 | /* Check for a symtab of a specific name; first in symtabs, then in |
156 | psymtabs. *If* there is no '/' in the name, a match after a '/' | |
157 | in the symtab filename will also work. */ | |
158 | ||
1b15f1fa TT |
159 | struct symtab * |
160 | lookup_symtab (const char *name) | |
c906108c | 161 | { |
ccefe4c4 TT |
162 | int found; |
163 | struct symtab *s = NULL; | |
52f0bd74 | 164 | struct objfile *objfile; |
58d370e0 | 165 | char *real_path = NULL; |
f079a2e5 | 166 | char *full_path = NULL; |
58d370e0 TT |
167 | |
168 | /* Here we are interested in canonicalizing an absolute path, not | |
169 | absolutizing a relative path. */ | |
170 | if (IS_ABSOLUTE_PATH (name)) | |
f079a2e5 JB |
171 | { |
172 | full_path = xfullpath (name); | |
173 | make_cleanup (xfree, full_path); | |
174 | real_path = gdb_realpath (name); | |
175 | make_cleanup (xfree, real_path); | |
176 | } | |
c906108c | 177 | |
c5aa993b | 178 | got_symtab: |
c906108c SS |
179 | |
180 | /* First, search for an exact match */ | |
181 | ||
182 | ALL_SYMTABS (objfile, s) | |
58d370e0 | 183 | { |
a7fdf62f | 184 | if (FILENAME_CMP (name, s->filename) == 0) |
58d370e0 | 185 | { |
58d370e0 TT |
186 | return s; |
187 | } | |
9af17804 | 188 | |
58d370e0 TT |
189 | /* If the user gave us an absolute path, try to find the file in |
190 | this symtab and use its absolute path. */ | |
9af17804 | 191 | |
f079a2e5 JB |
192 | if (full_path != NULL) |
193 | { | |
09bcec80 | 194 | const char *fp = symtab_to_fullname (s); |
433759f7 | 195 | |
09bcec80 BR |
196 | if (fp != NULL && FILENAME_CMP (full_path, fp) == 0) |
197 | { | |
198 | return s; | |
199 | } | |
f079a2e5 JB |
200 | } |
201 | ||
58d370e0 TT |
202 | if (real_path != NULL) |
203 | { | |
09bcec80 | 204 | char *fullname = symtab_to_fullname (s); |
433759f7 | 205 | |
09bcec80 BR |
206 | if (fullname != NULL) |
207 | { | |
208 | char *rp = gdb_realpath (fullname); | |
433759f7 | 209 | |
09bcec80 BR |
210 | make_cleanup (xfree, rp); |
211 | if (FILENAME_CMP (real_path, rp) == 0) | |
212 | { | |
213 | return s; | |
214 | } | |
215 | } | |
58d370e0 TT |
216 | } |
217 | } | |
218 | ||
c906108c SS |
219 | /* Now, search for a matching tail (only if name doesn't have any dirs) */ |
220 | ||
caadab2c | 221 | if (lbasename (name) == name) |
c906108c | 222 | ALL_SYMTABS (objfile, s) |
c5aa993b | 223 | { |
31889e00 | 224 | if (FILENAME_CMP (lbasename (s->filename), name) == 0) |
c5aa993b JM |
225 | return s; |
226 | } | |
c906108c SS |
227 | |
228 | /* Same search rules as above apply here, but now we look thru the | |
229 | psymtabs. */ | |
230 | ||
ccefe4c4 TT |
231 | found = 0; |
232 | ALL_OBJFILES (objfile) | |
233 | { | |
234 | if (objfile->sf | |
235 | && objfile->sf->qf->lookup_symtab (objfile, name, full_path, real_path, | |
236 | &s)) | |
237 | { | |
238 | found = 1; | |
239 | break; | |
240 | } | |
241 | } | |
c906108c | 242 | |
ccefe4c4 | 243 | if (s != NULL) |
c906108c | 244 | return s; |
ccefe4c4 TT |
245 | if (!found) |
246 | return NULL; | |
c906108c SS |
247 | |
248 | /* At this point, we have located the psymtab for this file, but | |
249 | the conversion to a symtab has failed. This usually happens | |
250 | when we are looking up an include file. In this case, | |
251 | PSYMTAB_TO_SYMTAB doesn't return a symtab, even though one has | |
252 | been created. So, we need to run through the symtabs again in | |
253 | order to find the file. | |
254 | XXX - This is a crock, and should be fixed inside of the the | |
255 | symbol parsing routines. */ | |
256 | goto got_symtab; | |
257 | } | |
c906108c SS |
258 | \f |
259 | /* Mangle a GDB method stub type. This actually reassembles the pieces of the | |
260 | full method name, which consist of the class name (from T), the unadorned | |
261 | method name from METHOD_ID, and the signature for the specific overload, | |
262 | specified by SIGNATURE_ID. Note that this function is g++ specific. */ | |
263 | ||
264 | char * | |
fba45db2 | 265 | gdb_mangle_name (struct type *type, int method_id, int signature_id) |
c906108c SS |
266 | { |
267 | int mangled_name_len; | |
268 | char *mangled_name; | |
269 | struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); | |
270 | struct fn_field *method = &f[signature_id]; | |
271 | char *field_name = TYPE_FN_FIELDLIST_NAME (type, method_id); | |
272 | char *physname = TYPE_FN_FIELD_PHYSNAME (f, signature_id); | |
273 | char *newname = type_name_no_tag (type); | |
274 | ||
275 | /* Does the form of physname indicate that it is the full mangled name | |
276 | of a constructor (not just the args)? */ | |
277 | int is_full_physname_constructor; | |
278 | ||
279 | int is_constructor; | |
015a42b4 | 280 | int is_destructor = is_destructor_name (physname); |
c906108c SS |
281 | /* Need a new type prefix. */ |
282 | char *const_prefix = method->is_const ? "C" : ""; | |
283 | char *volatile_prefix = method->is_volatile ? "V" : ""; | |
284 | char buf[20]; | |
285 | int len = (newname == NULL ? 0 : strlen (newname)); | |
286 | ||
43630227 PS |
287 | /* Nothing to do if physname already contains a fully mangled v3 abi name |
288 | or an operator name. */ | |
289 | if ((physname[0] == '_' && physname[1] == 'Z') | |
290 | || is_operator_name (field_name)) | |
235d1e03 EZ |
291 | return xstrdup (physname); |
292 | ||
015a42b4 | 293 | is_full_physname_constructor = is_constructor_name (physname); |
c906108c SS |
294 | |
295 | is_constructor = | |
6314a349 | 296 | is_full_physname_constructor || (newname && strcmp (field_name, newname) == 0); |
c906108c SS |
297 | |
298 | if (!is_destructor) | |
c5aa993b | 299 | is_destructor = (strncmp (physname, "__dt", 4) == 0); |
c906108c SS |
300 | |
301 | if (is_destructor || is_full_physname_constructor) | |
302 | { | |
c5aa993b JM |
303 | mangled_name = (char *) xmalloc (strlen (physname) + 1); |
304 | strcpy (mangled_name, physname); | |
c906108c SS |
305 | return mangled_name; |
306 | } | |
307 | ||
308 | if (len == 0) | |
309 | { | |
310 | sprintf (buf, "__%s%s", const_prefix, volatile_prefix); | |
311 | } | |
312 | else if (physname[0] == 't' || physname[0] == 'Q') | |
313 | { | |
314 | /* The physname for template and qualified methods already includes | |
c5aa993b | 315 | the class name. */ |
c906108c SS |
316 | sprintf (buf, "__%s%s", const_prefix, volatile_prefix); |
317 | newname = NULL; | |
318 | len = 0; | |
319 | } | |
320 | else | |
321 | { | |
322 | sprintf (buf, "__%s%s%d", const_prefix, volatile_prefix, len); | |
323 | } | |
324 | mangled_name_len = ((is_constructor ? 0 : strlen (field_name)) | |
235d1e03 | 325 | + strlen (buf) + len + strlen (physname) + 1); |
c906108c | 326 | |
433759f7 MS |
327 | mangled_name = (char *) xmalloc (mangled_name_len); |
328 | if (is_constructor) | |
329 | mangled_name[0] = '\0'; | |
330 | else | |
331 | strcpy (mangled_name, field_name); | |
332 | ||
c906108c SS |
333 | strcat (mangled_name, buf); |
334 | /* If the class doesn't have a name, i.e. newname NULL, then we just | |
335 | mangle it using 0 for the length of the class. Thus it gets mangled | |
c5aa993b | 336 | as something starting with `::' rather than `classname::'. */ |
c906108c SS |
337 | if (newname != NULL) |
338 | strcat (mangled_name, newname); | |
339 | ||
340 | strcat (mangled_name, physname); | |
341 | return (mangled_name); | |
342 | } | |
12af6855 | 343 | |
29df156d SW |
344 | /* Initialize the cplus_specific structure. 'cplus_specific' should |
345 | only be allocated for use with cplus symbols. */ | |
346 | ||
347 | static void | |
348 | symbol_init_cplus_specific (struct general_symbol_info *gsymbol, | |
349 | struct objfile *objfile) | |
350 | { | |
351 | /* A language_specific structure should not have been previously | |
352 | initialized. */ | |
353 | gdb_assert (gsymbol->language_specific.cplus_specific == NULL); | |
354 | gdb_assert (objfile != NULL); | |
355 | ||
356 | gsymbol->language_specific.cplus_specific = | |
357 | OBSTACK_ZALLOC (&objfile->objfile_obstack, struct cplus_specific); | |
358 | } | |
359 | ||
b250c185 | 360 | /* Set the demangled name of GSYMBOL to NAME. NAME must be already |
29df156d SW |
361 | correctly allocated. For C++ symbols a cplus_specific struct is |
362 | allocated so OBJFILE must not be NULL. If this is a non C++ symbol | |
363 | OBJFILE can be NULL. */ | |
b250c185 SW |
364 | void |
365 | symbol_set_demangled_name (struct general_symbol_info *gsymbol, | |
29df156d SW |
366 | char *name, |
367 | struct objfile *objfile) | |
b250c185 | 368 | { |
29df156d SW |
369 | if (gsymbol->language == language_cplus) |
370 | { | |
371 | if (gsymbol->language_specific.cplus_specific == NULL) | |
372 | symbol_init_cplus_specific (gsymbol, objfile); | |
373 | ||
374 | gsymbol->language_specific.cplus_specific->demangled_name = name; | |
375 | } | |
376 | else | |
377 | gsymbol->language_specific.mangled_lang.demangled_name = name; | |
b250c185 SW |
378 | } |
379 | ||
380 | /* Return the demangled name of GSYMBOL. */ | |
381 | char * | |
382 | symbol_get_demangled_name (const struct general_symbol_info *gsymbol) | |
383 | { | |
29df156d SW |
384 | if (gsymbol->language == language_cplus) |
385 | { | |
45c58896 SW |
386 | if (gsymbol->language_specific.cplus_specific != NULL) |
387 | return gsymbol->language_specific.cplus_specific->demangled_name; | |
388 | else | |
389 | return NULL; | |
29df156d SW |
390 | } |
391 | else | |
392 | return gsymbol->language_specific.mangled_lang.demangled_name; | |
b250c185 SW |
393 | } |
394 | ||
12af6855 | 395 | \f |
89aad1f9 EZ |
396 | /* Initialize the language dependent portion of a symbol |
397 | depending upon the language for the symbol. */ | |
398 | void | |
33e5013e SW |
399 | symbol_set_language (struct general_symbol_info *gsymbol, |
400 | enum language language) | |
89aad1f9 EZ |
401 | { |
402 | gsymbol->language = language; | |
33e5013e | 403 | if (gsymbol->language == language_d |
5784d15e | 404 | || gsymbol->language == language_java |
f55ee35c JK |
405 | || gsymbol->language == language_objc |
406 | || gsymbol->language == language_fortran) | |
89aad1f9 | 407 | { |
29df156d | 408 | symbol_set_demangled_name (gsymbol, NULL, NULL); |
89aad1f9 | 409 | } |
29df156d SW |
410 | else if (gsymbol->language == language_cplus) |
411 | gsymbol->language_specific.cplus_specific = NULL; | |
89aad1f9 EZ |
412 | else |
413 | { | |
414 | memset (&gsymbol->language_specific, 0, | |
415 | sizeof (gsymbol->language_specific)); | |
416 | } | |
417 | } | |
418 | ||
2de7ced7 DJ |
419 | /* Functions to initialize a symbol's mangled name. */ |
420 | ||
04a679b8 TT |
421 | /* Objects of this type are stored in the demangled name hash table. */ |
422 | struct demangled_name_entry | |
423 | { | |
424 | char *mangled; | |
425 | char demangled[1]; | |
426 | }; | |
427 | ||
428 | /* Hash function for the demangled name hash. */ | |
429 | static hashval_t | |
430 | hash_demangled_name_entry (const void *data) | |
431 | { | |
432 | const struct demangled_name_entry *e = data; | |
433759f7 | 433 | |
04a679b8 TT |
434 | return htab_hash_string (e->mangled); |
435 | } | |
436 | ||
437 | /* Equality function for the demangled name hash. */ | |
438 | static int | |
439 | eq_demangled_name_entry (const void *a, const void *b) | |
440 | { | |
441 | const struct demangled_name_entry *da = a; | |
442 | const struct demangled_name_entry *db = b; | |
433759f7 | 443 | |
04a679b8 TT |
444 | return strcmp (da->mangled, db->mangled) == 0; |
445 | } | |
446 | ||
2de7ced7 DJ |
447 | /* Create the hash table used for demangled names. Each hash entry is |
448 | a pair of strings; one for the mangled name and one for the demangled | |
449 | name. The entry is hashed via just the mangled name. */ | |
450 | ||
451 | static void | |
452 | create_demangled_names_hash (struct objfile *objfile) | |
453 | { | |
454 | /* Choose 256 as the starting size of the hash table, somewhat arbitrarily. | |
9af17804 | 455 | The hash table code will round this up to the next prime number. |
2de7ced7 DJ |
456 | Choosing a much larger table size wastes memory, and saves only about |
457 | 1% in symbol reading. */ | |
458 | ||
aa2ee5f6 | 459 | objfile->demangled_names_hash = htab_create_alloc |
04a679b8 | 460 | (256, hash_demangled_name_entry, eq_demangled_name_entry, |
aa2ee5f6 | 461 | NULL, xcalloc, xfree); |
2de7ced7 | 462 | } |
12af6855 | 463 | |
2de7ced7 | 464 | /* Try to determine the demangled name for a symbol, based on the |
12af6855 JB |
465 | language of that symbol. If the language is set to language_auto, |
466 | it will attempt to find any demangling algorithm that works and | |
2de7ced7 DJ |
467 | then set the language appropriately. The returned name is allocated |
468 | by the demangler and should be xfree'd. */ | |
12af6855 | 469 | |
2de7ced7 DJ |
470 | static char * |
471 | symbol_find_demangled_name (struct general_symbol_info *gsymbol, | |
472 | const char *mangled) | |
12af6855 | 473 | { |
12af6855 JB |
474 | char *demangled = NULL; |
475 | ||
476 | if (gsymbol->language == language_unknown) | |
477 | gsymbol->language = language_auto; | |
1bae87b9 AF |
478 | |
479 | if (gsymbol->language == language_objc | |
480 | || gsymbol->language == language_auto) | |
481 | { | |
482 | demangled = | |
483 | objc_demangle (mangled, 0); | |
484 | if (demangled != NULL) | |
485 | { | |
486 | gsymbol->language = language_objc; | |
487 | return demangled; | |
488 | } | |
489 | } | |
12af6855 JB |
490 | if (gsymbol->language == language_cplus |
491 | || gsymbol->language == language_auto) | |
492 | { | |
493 | demangled = | |
94af9270 | 494 | cplus_demangle (mangled, DMGL_PARAMS | DMGL_ANSI | DMGL_VERBOSE); |
12af6855 | 495 | if (demangled != NULL) |
2de7ced7 DJ |
496 | { |
497 | gsymbol->language = language_cplus; | |
498 | return demangled; | |
499 | } | |
12af6855 JB |
500 | } |
501 | if (gsymbol->language == language_java) | |
502 | { | |
503 | demangled = | |
2de7ced7 | 504 | cplus_demangle (mangled, |
12af6855 JB |
505 | DMGL_PARAMS | DMGL_ANSI | DMGL_JAVA); |
506 | if (demangled != NULL) | |
2de7ced7 DJ |
507 | { |
508 | gsymbol->language = language_java; | |
509 | return demangled; | |
510 | } | |
511 | } | |
6aecb9c2 JB |
512 | if (gsymbol->language == language_d |
513 | || gsymbol->language == language_auto) | |
514 | { | |
515 | demangled = d_demangle(mangled, 0); | |
516 | if (demangled != NULL) | |
517 | { | |
518 | gsymbol->language = language_d; | |
519 | return demangled; | |
520 | } | |
521 | } | |
f55ee35c JK |
522 | /* We could support `gsymbol->language == language_fortran' here to provide |
523 | module namespaces also for inferiors with only minimal symbol table (ELF | |
524 | symbols). Just the mangling standard is not standardized across compilers | |
525 | and there is no DW_AT_producer available for inferiors with only the ELF | |
526 | symbols to check the mangling kind. */ | |
2de7ced7 DJ |
527 | return NULL; |
528 | } | |
529 | ||
980cae7a | 530 | /* Set both the mangled and demangled (if any) names for GSYMBOL based |
04a679b8 TT |
531 | on LINKAGE_NAME and LEN. Ordinarily, NAME is copied onto the |
532 | objfile's obstack; but if COPY_NAME is 0 and if NAME is | |
533 | NUL-terminated, then this function assumes that NAME is already | |
534 | correctly saved (either permanently or with a lifetime tied to the | |
535 | objfile), and it will not be copied. | |
536 | ||
537 | The hash table corresponding to OBJFILE is used, and the memory | |
538 | comes from that objfile's objfile_obstack. LINKAGE_NAME is copied, | |
539 | so the pointer can be discarded after calling this function. */ | |
2de7ced7 | 540 | |
d2a52b27 DC |
541 | /* We have to be careful when dealing with Java names: when we run |
542 | into a Java minimal symbol, we don't know it's a Java symbol, so it | |
543 | gets demangled as a C++ name. This is unfortunate, but there's not | |
544 | much we can do about it: but when demangling partial symbols and | |
545 | regular symbols, we'd better not reuse the wrong demangled name. | |
546 | (See PR gdb/1039.) We solve this by putting a distinctive prefix | |
547 | on Java names when storing them in the hash table. */ | |
548 | ||
549 | /* FIXME: carlton/2003-03-13: This is an unfortunate situation. I | |
550 | don't mind the Java prefix so much: different languages have | |
551 | different demangling requirements, so it's only natural that we | |
552 | need to keep language data around in our demangling cache. But | |
553 | it's not good that the minimal symbol has the wrong demangled name. | |
554 | Unfortunately, I can't think of any easy solution to that | |
555 | problem. */ | |
556 | ||
557 | #define JAVA_PREFIX "##JAVA$$" | |
558 | #define JAVA_PREFIX_LEN 8 | |
559 | ||
2de7ced7 DJ |
560 | void |
561 | symbol_set_names (struct general_symbol_info *gsymbol, | |
04a679b8 TT |
562 | const char *linkage_name, int len, int copy_name, |
563 | struct objfile *objfile) | |
2de7ced7 | 564 | { |
04a679b8 | 565 | struct demangled_name_entry **slot; |
980cae7a DC |
566 | /* A 0-terminated copy of the linkage name. */ |
567 | const char *linkage_name_copy; | |
d2a52b27 DC |
568 | /* A copy of the linkage name that might have a special Java prefix |
569 | added to it, for use when looking names up in the hash table. */ | |
570 | const char *lookup_name; | |
571 | /* The length of lookup_name. */ | |
572 | int lookup_len; | |
04a679b8 | 573 | struct demangled_name_entry entry; |
2de7ced7 | 574 | |
b06ead72 JB |
575 | if (gsymbol->language == language_ada) |
576 | { | |
577 | /* In Ada, we do the symbol lookups using the mangled name, so | |
578 | we can save some space by not storing the demangled name. | |
579 | ||
580 | As a side note, we have also observed some overlap between | |
581 | the C++ mangling and Ada mangling, similarly to what has | |
582 | been observed with Java. Because we don't store the demangled | |
583 | name with the symbol, we don't need to use the same trick | |
584 | as Java. */ | |
04a679b8 TT |
585 | if (!copy_name) |
586 | gsymbol->name = (char *) linkage_name; | |
587 | else | |
588 | { | |
589 | gsymbol->name = obstack_alloc (&objfile->objfile_obstack, len + 1); | |
590 | memcpy (gsymbol->name, linkage_name, len); | |
591 | gsymbol->name[len] = '\0'; | |
592 | } | |
29df156d | 593 | symbol_set_demangled_name (gsymbol, NULL, NULL); |
b06ead72 JB |
594 | |
595 | return; | |
596 | } | |
597 | ||
04a679b8 TT |
598 | if (objfile->demangled_names_hash == NULL) |
599 | create_demangled_names_hash (objfile); | |
600 | ||
980cae7a DC |
601 | /* The stabs reader generally provides names that are not |
602 | NUL-terminated; most of the other readers don't do this, so we | |
d2a52b27 DC |
603 | can just use the given copy, unless we're in the Java case. */ |
604 | if (gsymbol->language == language_java) | |
605 | { | |
606 | char *alloc_name; | |
d2a52b27 | 607 | |
433759f7 | 608 | lookup_len = len + JAVA_PREFIX_LEN; |
d2a52b27 DC |
609 | alloc_name = alloca (lookup_len + 1); |
610 | memcpy (alloc_name, JAVA_PREFIX, JAVA_PREFIX_LEN); | |
611 | memcpy (alloc_name + JAVA_PREFIX_LEN, linkage_name, len); | |
612 | alloc_name[lookup_len] = '\0'; | |
613 | ||
614 | lookup_name = alloc_name; | |
615 | linkage_name_copy = alloc_name + JAVA_PREFIX_LEN; | |
616 | } | |
617 | else if (linkage_name[len] != '\0') | |
2de7ced7 | 618 | { |
980cae7a DC |
619 | char *alloc_name; |
620 | ||
433759f7 | 621 | lookup_len = len; |
d2a52b27 | 622 | alloc_name = alloca (lookup_len + 1); |
980cae7a | 623 | memcpy (alloc_name, linkage_name, len); |
d2a52b27 | 624 | alloc_name[lookup_len] = '\0'; |
980cae7a | 625 | |
d2a52b27 | 626 | lookup_name = alloc_name; |
980cae7a | 627 | linkage_name_copy = alloc_name; |
2de7ced7 DJ |
628 | } |
629 | else | |
980cae7a | 630 | { |
d2a52b27 DC |
631 | lookup_len = len; |
632 | lookup_name = linkage_name; | |
980cae7a DC |
633 | linkage_name_copy = linkage_name; |
634 | } | |
2de7ced7 | 635 | |
04a679b8 TT |
636 | entry.mangled = (char *) lookup_name; |
637 | slot = ((struct demangled_name_entry **) | |
638 | htab_find_slot (objfile->demangled_names_hash, | |
639 | &entry, INSERT)); | |
2de7ced7 DJ |
640 | |
641 | /* If this name is not in the hash table, add it. */ | |
642 | if (*slot == NULL) | |
643 | { | |
980cae7a DC |
644 | char *demangled_name = symbol_find_demangled_name (gsymbol, |
645 | linkage_name_copy); | |
2de7ced7 DJ |
646 | int demangled_len = demangled_name ? strlen (demangled_name) : 0; |
647 | ||
04a679b8 TT |
648 | /* Suppose we have demangled_name==NULL, copy_name==0, and |
649 | lookup_name==linkage_name. In this case, we already have the | |
650 | mangled name saved, and we don't have a demangled name. So, | |
651 | you might think we could save a little space by not recording | |
652 | this in the hash table at all. | |
653 | ||
654 | It turns out that it is actually important to still save such | |
655 | an entry in the hash table, because storing this name gives | |
705b5767 | 656 | us better bcache hit rates for partial symbols. */ |
04a679b8 TT |
657 | if (!copy_name && lookup_name == linkage_name) |
658 | { | |
659 | *slot = obstack_alloc (&objfile->objfile_obstack, | |
660 | offsetof (struct demangled_name_entry, | |
661 | demangled) | |
662 | + demangled_len + 1); | |
663 | (*slot)->mangled = (char *) lookup_name; | |
664 | } | |
665 | else | |
666 | { | |
667 | /* If we must copy the mangled name, put it directly after | |
668 | the demangled name so we can have a single | |
669 | allocation. */ | |
670 | *slot = obstack_alloc (&objfile->objfile_obstack, | |
671 | offsetof (struct demangled_name_entry, | |
672 | demangled) | |
673 | + lookup_len + demangled_len + 2); | |
674 | (*slot)->mangled = &((*slot)->demangled[demangled_len + 1]); | |
675 | strcpy ((*slot)->mangled, lookup_name); | |
676 | } | |
677 | ||
980cae7a | 678 | if (demangled_name != NULL) |
2de7ced7 | 679 | { |
04a679b8 | 680 | strcpy ((*slot)->demangled, demangled_name); |
2de7ced7 DJ |
681 | xfree (demangled_name); |
682 | } | |
683 | else | |
04a679b8 | 684 | (*slot)->demangled[0] = '\0'; |
2de7ced7 DJ |
685 | } |
686 | ||
72dcaf82 | 687 | gsymbol->name = (*slot)->mangled + lookup_len - len; |
04a679b8 | 688 | if ((*slot)->demangled[0] != '\0') |
29df156d | 689 | symbol_set_demangled_name (gsymbol, (*slot)->demangled, objfile); |
2de7ced7 | 690 | else |
29df156d | 691 | symbol_set_demangled_name (gsymbol, NULL, objfile); |
2de7ced7 DJ |
692 | } |
693 | ||
22abf04a DC |
694 | /* Return the source code name of a symbol. In languages where |
695 | demangling is necessary, this is the demangled name. */ | |
696 | ||
697 | char * | |
698 | symbol_natural_name (const struct general_symbol_info *gsymbol) | |
699 | { | |
9af17804 | 700 | switch (gsymbol->language) |
22abf04a | 701 | { |
1f8173e6 | 702 | case language_cplus: |
6aecb9c2 | 703 | case language_d: |
1f8173e6 PH |
704 | case language_java: |
705 | case language_objc: | |
f55ee35c | 706 | case language_fortran: |
b250c185 SW |
707 | if (symbol_get_demangled_name (gsymbol) != NULL) |
708 | return symbol_get_demangled_name (gsymbol); | |
1f8173e6 PH |
709 | break; |
710 | case language_ada: | |
b250c185 SW |
711 | if (symbol_get_demangled_name (gsymbol) != NULL) |
712 | return symbol_get_demangled_name (gsymbol); | |
1f8173e6 PH |
713 | else |
714 | return ada_decode_symbol (gsymbol); | |
715 | break; | |
716 | default: | |
717 | break; | |
22abf04a | 718 | } |
1f8173e6 | 719 | return gsymbol->name; |
22abf04a DC |
720 | } |
721 | ||
9cc0d196 EZ |
722 | /* Return the demangled name for a symbol based on the language for |
723 | that symbol. If no demangled name exists, return NULL. */ | |
724 | char * | |
df8a16a1 | 725 | symbol_demangled_name (const struct general_symbol_info *gsymbol) |
9cc0d196 | 726 | { |
9af17804 | 727 | switch (gsymbol->language) |
1f8173e6 PH |
728 | { |
729 | case language_cplus: | |
6aecb9c2 | 730 | case language_d: |
1f8173e6 PH |
731 | case language_java: |
732 | case language_objc: | |
f55ee35c | 733 | case language_fortran: |
b250c185 SW |
734 | if (symbol_get_demangled_name (gsymbol) != NULL) |
735 | return symbol_get_demangled_name (gsymbol); | |
1f8173e6 PH |
736 | break; |
737 | case language_ada: | |
b250c185 SW |
738 | if (symbol_get_demangled_name (gsymbol) != NULL) |
739 | return symbol_get_demangled_name (gsymbol); | |
1f8173e6 PH |
740 | else |
741 | return ada_decode_symbol (gsymbol); | |
742 | break; | |
743 | default: | |
744 | break; | |
745 | } | |
746 | return NULL; | |
9cc0d196 | 747 | } |
fe39c653 | 748 | |
4725b721 PH |
749 | /* Return the search name of a symbol---generally the demangled or |
750 | linkage name of the symbol, depending on how it will be searched for. | |
9af17804 | 751 | If there is no distinct demangled name, then returns the same value |
4725b721 | 752 | (same pointer) as SYMBOL_LINKAGE_NAME. */ |
fc062ac6 JB |
753 | char * |
754 | symbol_search_name (const struct general_symbol_info *gsymbol) | |
755 | { | |
1f8173e6 PH |
756 | if (gsymbol->language == language_ada) |
757 | return gsymbol->name; | |
758 | else | |
759 | return symbol_natural_name (gsymbol); | |
4725b721 PH |
760 | } |
761 | ||
fe39c653 EZ |
762 | /* Initialize the structure fields to zero values. */ |
763 | void | |
764 | init_sal (struct symtab_and_line *sal) | |
765 | { | |
6c95b8df | 766 | sal->pspace = NULL; |
fe39c653 EZ |
767 | sal->symtab = 0; |
768 | sal->section = 0; | |
769 | sal->line = 0; | |
770 | sal->pc = 0; | |
771 | sal->end = 0; | |
ed0616c6 VP |
772 | sal->explicit_pc = 0; |
773 | sal->explicit_line = 0; | |
fe39c653 | 774 | } |
c906108c SS |
775 | \f |
776 | ||
94277a38 DJ |
777 | /* Return 1 if the two sections are the same, or if they could |
778 | plausibly be copies of each other, one in an original object | |
779 | file and another in a separated debug file. */ | |
780 | ||
781 | int | |
714835d5 UW |
782 | matching_obj_sections (struct obj_section *obj_first, |
783 | struct obj_section *obj_second) | |
94277a38 | 784 | { |
714835d5 UW |
785 | asection *first = obj_first? obj_first->the_bfd_section : NULL; |
786 | asection *second = obj_second? obj_second->the_bfd_section : NULL; | |
94277a38 DJ |
787 | struct objfile *obj; |
788 | ||
789 | /* If they're the same section, then they match. */ | |
790 | if (first == second) | |
791 | return 1; | |
792 | ||
793 | /* If either is NULL, give up. */ | |
794 | if (first == NULL || second == NULL) | |
795 | return 0; | |
796 | ||
797 | /* This doesn't apply to absolute symbols. */ | |
798 | if (first->owner == NULL || second->owner == NULL) | |
799 | return 0; | |
800 | ||
801 | /* If they're in the same object file, they must be different sections. */ | |
802 | if (first->owner == second->owner) | |
803 | return 0; | |
804 | ||
805 | /* Check whether the two sections are potentially corresponding. They must | |
806 | have the same size, address, and name. We can't compare section indexes, | |
807 | which would be more reliable, because some sections may have been | |
808 | stripped. */ | |
809 | if (bfd_get_section_size (first) != bfd_get_section_size (second)) | |
810 | return 0; | |
811 | ||
818f79f6 | 812 | /* In-memory addresses may start at a different offset, relativize them. */ |
94277a38 | 813 | if (bfd_get_section_vma (first->owner, first) |
818f79f6 DJ |
814 | - bfd_get_start_address (first->owner) |
815 | != bfd_get_section_vma (second->owner, second) | |
816 | - bfd_get_start_address (second->owner)) | |
94277a38 DJ |
817 | return 0; |
818 | ||
819 | if (bfd_get_section_name (first->owner, first) == NULL | |
820 | || bfd_get_section_name (second->owner, second) == NULL | |
821 | || strcmp (bfd_get_section_name (first->owner, first), | |
822 | bfd_get_section_name (second->owner, second)) != 0) | |
823 | return 0; | |
824 | ||
825 | /* Otherwise check that they are in corresponding objfiles. */ | |
826 | ||
827 | ALL_OBJFILES (obj) | |
828 | if (obj->obfd == first->owner) | |
829 | break; | |
830 | gdb_assert (obj != NULL); | |
831 | ||
832 | if (obj->separate_debug_objfile != NULL | |
833 | && obj->separate_debug_objfile->obfd == second->owner) | |
834 | return 1; | |
835 | if (obj->separate_debug_objfile_backlink != NULL | |
836 | && obj->separate_debug_objfile_backlink->obfd == second->owner) | |
837 | return 1; | |
838 | ||
839 | return 0; | |
840 | } | |
c5aa993b | 841 | |
ccefe4c4 TT |
842 | struct symtab * |
843 | find_pc_sect_symtab_via_partial (CORE_ADDR pc, struct obj_section *section) | |
c906108c | 844 | { |
52f0bd74 | 845 | struct objfile *objfile; |
8a48e967 DJ |
846 | struct minimal_symbol *msymbol; |
847 | ||
848 | /* If we know that this is not a text address, return failure. This is | |
849 | necessary because we loop based on texthigh and textlow, which do | |
850 | not include the data ranges. */ | |
851 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); | |
852 | if (msymbol | |
712f90be TT |
853 | && (MSYMBOL_TYPE (msymbol) == mst_data |
854 | || MSYMBOL_TYPE (msymbol) == mst_bss | |
855 | || MSYMBOL_TYPE (msymbol) == mst_abs | |
856 | || MSYMBOL_TYPE (msymbol) == mst_file_data | |
857 | || MSYMBOL_TYPE (msymbol) == mst_file_bss)) | |
8a48e967 | 858 | return NULL; |
c906108c | 859 | |
ff013f42 | 860 | ALL_OBJFILES (objfile) |
ccefe4c4 TT |
861 | { |
862 | struct symtab *result = NULL; | |
433759f7 | 863 | |
ccefe4c4 TT |
864 | if (objfile->sf) |
865 | result = objfile->sf->qf->find_pc_sect_symtab (objfile, msymbol, | |
866 | pc, section, 0); | |
867 | if (result) | |
868 | return result; | |
869 | } | |
ff013f42 JK |
870 | |
871 | return NULL; | |
c906108c | 872 | } |
c906108c SS |
873 | \f |
874 | /* Debug symbols usually don't have section information. We need to dig that | |
875 | out of the minimal symbols and stash that in the debug symbol. */ | |
876 | ||
ccefe4c4 | 877 | void |
907fc202 UW |
878 | fixup_section (struct general_symbol_info *ginfo, |
879 | CORE_ADDR addr, struct objfile *objfile) | |
c906108c SS |
880 | { |
881 | struct minimal_symbol *msym; | |
c906108c | 882 | |
bccdca4a UW |
883 | /* First, check whether a minimal symbol with the same name exists |
884 | and points to the same address. The address check is required | |
885 | e.g. on PowerPC64, where the minimal symbol for a function will | |
886 | point to the function descriptor, while the debug symbol will | |
887 | point to the actual function code. */ | |
907fc202 UW |
888 | msym = lookup_minimal_symbol_by_pc_name (addr, ginfo->name, objfile); |
889 | if (msym) | |
7a78d0ee | 890 | { |
714835d5 | 891 | ginfo->obj_section = SYMBOL_OBJ_SECTION (msym); |
7a78d0ee KB |
892 | ginfo->section = SYMBOL_SECTION (msym); |
893 | } | |
907fc202 | 894 | else |
19e2d14b KB |
895 | { |
896 | /* Static, function-local variables do appear in the linker | |
897 | (minimal) symbols, but are frequently given names that won't | |
898 | be found via lookup_minimal_symbol(). E.g., it has been | |
899 | observed in frv-uclinux (ELF) executables that a static, | |
900 | function-local variable named "foo" might appear in the | |
901 | linker symbols as "foo.6" or "foo.3". Thus, there is no | |
902 | point in attempting to extend the lookup-by-name mechanism to | |
903 | handle this case due to the fact that there can be multiple | |
904 | names. | |
9af17804 | 905 | |
19e2d14b KB |
906 | So, instead, search the section table when lookup by name has |
907 | failed. The ``addr'' and ``endaddr'' fields may have already | |
908 | been relocated. If so, the relocation offset (i.e. the | |
909 | ANOFFSET value) needs to be subtracted from these values when | |
910 | performing the comparison. We unconditionally subtract it, | |
911 | because, when no relocation has been performed, the ANOFFSET | |
912 | value will simply be zero. | |
9af17804 | 913 | |
19e2d14b KB |
914 | The address of the symbol whose section we're fixing up HAS |
915 | NOT BEEN adjusted (relocated) yet. It can't have been since | |
916 | the section isn't yet known and knowing the section is | |
917 | necessary in order to add the correct relocation value. In | |
918 | other words, we wouldn't even be in this function (attempting | |
919 | to compute the section) if it were already known. | |
920 | ||
921 | Note that it is possible to search the minimal symbols | |
922 | (subtracting the relocation value if necessary) to find the | |
923 | matching minimal symbol, but this is overkill and much less | |
924 | efficient. It is not necessary to find the matching minimal | |
9af17804 DE |
925 | symbol, only its section. |
926 | ||
19e2d14b KB |
927 | Note that this technique (of doing a section table search) |
928 | can fail when unrelocated section addresses overlap. For | |
929 | this reason, we still attempt a lookup by name prior to doing | |
930 | a search of the section table. */ | |
9af17804 | 931 | |
19e2d14b | 932 | struct obj_section *s; |
433759f7 | 933 | |
19e2d14b KB |
934 | ALL_OBJFILE_OSECTIONS (objfile, s) |
935 | { | |
936 | int idx = s->the_bfd_section->index; | |
937 | CORE_ADDR offset = ANOFFSET (objfile->section_offsets, idx); | |
938 | ||
f1f6aadf PA |
939 | if (obj_section_addr (s) - offset <= addr |
940 | && addr < obj_section_endaddr (s) - offset) | |
19e2d14b | 941 | { |
714835d5 | 942 | ginfo->obj_section = s; |
19e2d14b KB |
943 | ginfo->section = idx; |
944 | return; | |
945 | } | |
946 | } | |
947 | } | |
c906108c SS |
948 | } |
949 | ||
950 | struct symbol * | |
fba45db2 | 951 | fixup_symbol_section (struct symbol *sym, struct objfile *objfile) |
c906108c | 952 | { |
907fc202 UW |
953 | CORE_ADDR addr; |
954 | ||
c906108c SS |
955 | if (!sym) |
956 | return NULL; | |
957 | ||
714835d5 | 958 | if (SYMBOL_OBJ_SECTION (sym)) |
c906108c SS |
959 | return sym; |
960 | ||
907fc202 UW |
961 | /* We either have an OBJFILE, or we can get at it from the sym's |
962 | symtab. Anything else is a bug. */ | |
963 | gdb_assert (objfile || SYMBOL_SYMTAB (sym)); | |
964 | ||
965 | if (objfile == NULL) | |
966 | objfile = SYMBOL_SYMTAB (sym)->objfile; | |
967 | ||
968 | /* We should have an objfile by now. */ | |
969 | gdb_assert (objfile); | |
970 | ||
971 | switch (SYMBOL_CLASS (sym)) | |
972 | { | |
973 | case LOC_STATIC: | |
974 | case LOC_LABEL: | |
907fc202 UW |
975 | addr = SYMBOL_VALUE_ADDRESS (sym); |
976 | break; | |
977 | case LOC_BLOCK: | |
978 | addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); | |
979 | break; | |
980 | ||
981 | default: | |
982 | /* Nothing else will be listed in the minsyms -- no use looking | |
983 | it up. */ | |
984 | return sym; | |
985 | } | |
986 | ||
987 | fixup_section (&sym->ginfo, addr, objfile); | |
c906108c SS |
988 | |
989 | return sym; | |
990 | } | |
991 | ||
c906108c | 992 | /* Find the definition for a specified symbol name NAME |
176620f1 | 993 | in domain DOMAIN, visible from lexical block BLOCK. |
c906108c | 994 | Returns the struct symbol pointer, or zero if no symbol is found. |
c906108c SS |
995 | C++: if IS_A_FIELD_OF_THIS is nonzero on entry, check to see if |
996 | NAME is a field of the current implied argument `this'. If so set | |
9af17804 | 997 | *IS_A_FIELD_OF_THIS to 1, otherwise set it to zero. |
faf68db7 TT |
998 | FOR_TYPE is non-zero if searching specifically for a type; zero |
999 | otherwise. | |
c906108c SS |
1000 | BLOCK_FOUND is set to the block in which NAME is found (in the case of |
1001 | a field of `this', value_of_this sets BLOCK_FOUND to the proper value.) */ | |
1002 | ||
1003 | /* This function has a bunch of loops in it and it would seem to be | |
1004 | attractive to put in some QUIT's (though I'm not really sure | |
1005 | whether it can run long enough to be really important). But there | |
1006 | are a few calls for which it would appear to be bad news to quit | |
7ca9f392 AC |
1007 | out of here: find_proc_desc in alpha-tdep.c and mips-tdep.c. (Note |
1008 | that there is C++ code below which can error(), but that probably | |
1009 | doesn't affect these calls since they are looking for a known | |
1010 | variable and thus can probably assume it will never hit the C++ | |
1011 | code). */ | |
c906108c | 1012 | |
faf68db7 TT |
1013 | static struct symbol * |
1014 | lookup_symbol_in_language_full (const char *name, const struct block *block, | |
1015 | const domain_enum domain, enum language lang, | |
1016 | int *is_a_field_of_this, int for_type) | |
c906108c | 1017 | { |
729051e6 DJ |
1018 | char *demangled_name = NULL; |
1019 | const char *modified_name = NULL; | |
fba7f19c | 1020 | struct symbol *returnval; |
9ee6bb93 | 1021 | struct cleanup *cleanup = make_cleanup (null_cleanup, 0); |
c906108c | 1022 | |
729051e6 DJ |
1023 | modified_name = name; |
1024 | ||
433759f7 MS |
1025 | /* If we are using C++, D, or Java, demangle the name before doing a |
1026 | lookup, so we can always binary search. */ | |
53c5240f | 1027 | if (lang == language_cplus) |
729051e6 DJ |
1028 | { |
1029 | demangled_name = cplus_demangle (name, DMGL_ANSI | DMGL_PARAMS); | |
1030 | if (demangled_name) | |
1031 | { | |
729051e6 | 1032 | modified_name = demangled_name; |
9ee6bb93 | 1033 | make_cleanup (xfree, demangled_name); |
729051e6 | 1034 | } |
71c25dea TT |
1035 | else |
1036 | { | |
1037 | /* If we were given a non-mangled name, canonicalize it | |
1038 | according to the language (so far only for C++). */ | |
1039 | demangled_name = cp_canonicalize_string (name); | |
1040 | if (demangled_name) | |
1041 | { | |
1042 | modified_name = demangled_name; | |
1043 | make_cleanup (xfree, demangled_name); | |
1044 | } | |
1045 | } | |
729051e6 | 1046 | } |
53c5240f | 1047 | else if (lang == language_java) |
987504bb | 1048 | { |
9af17804 | 1049 | demangled_name = cplus_demangle (name, |
987504bb JJ |
1050 | DMGL_ANSI | DMGL_PARAMS | DMGL_JAVA); |
1051 | if (demangled_name) | |
1052 | { | |
987504bb | 1053 | modified_name = demangled_name; |
9ee6bb93 | 1054 | make_cleanup (xfree, demangled_name); |
987504bb JJ |
1055 | } |
1056 | } | |
6aecb9c2 JB |
1057 | else if (lang == language_d) |
1058 | { | |
1059 | demangled_name = d_demangle (name, 0); | |
1060 | if (demangled_name) | |
1061 | { | |
1062 | modified_name = demangled_name; | |
1063 | make_cleanup (xfree, demangled_name); | |
1064 | } | |
1065 | } | |
729051e6 | 1066 | |
63872f9d JG |
1067 | if (case_sensitivity == case_sensitive_off) |
1068 | { | |
1069 | char *copy; | |
1070 | int len, i; | |
1071 | ||
1072 | len = strlen (name); | |
1073 | copy = (char *) alloca (len + 1); | |
1074 | for (i= 0; i < len; i++) | |
1075 | copy[i] = tolower (name[i]); | |
1076 | copy[len] = 0; | |
fba7f19c | 1077 | modified_name = copy; |
63872f9d | 1078 | } |
fba7f19c | 1079 | |
94af9270 | 1080 | returnval = lookup_symbol_aux (modified_name, block, domain, lang, |
faf68db7 | 1081 | is_a_field_of_this, for_type); |
9ee6bb93 | 1082 | do_cleanups (cleanup); |
fba7f19c | 1083 | |
9af17804 | 1084 | return returnval; |
fba7f19c EZ |
1085 | } |
1086 | ||
faf68db7 TT |
1087 | /* Find the definition for a specified symbol name NAME |
1088 | in domain DOMAIN, visible from lexical block BLOCK. | |
1089 | Returns the struct symbol pointer, or zero if no symbol is found. | |
1090 | C++: if IS_A_FIELD_OF_THIS is nonzero on entry, check to see if | |
1091 | NAME is a field of the current implied argument `this'. If so set | |
1092 | *IS_A_FIELD_OF_THIS to 1, otherwise set it to zero. | |
1093 | BLOCK_FOUND is set to the block in which NAME is found (in the case of | |
1094 | a field of `this', value_of_this sets BLOCK_FOUND to the proper value.) */ | |
1095 | ||
1096 | struct symbol * | |
1097 | lookup_symbol_in_language (const char *name, const struct block *block, | |
1098 | const domain_enum domain, enum language lang, | |
1099 | int *is_a_field_of_this) | |
1100 | { | |
1101 | return lookup_symbol_in_language_full (name, block, domain, lang, | |
1102 | is_a_field_of_this, 0); | |
1103 | } | |
1104 | ||
1105 | /* Like lookup_symbol_in_language, but search specifically for a | |
1106 | type. */ | |
1107 | ||
1108 | struct symbol * | |
1109 | lookup_type_symbol (const char *name, const struct block *block, | |
1110 | const domain_enum domain, enum language lang) | |
1111 | { | |
1112 | return lookup_symbol_in_language_full (name, block, domain, lang, | |
1113 | NULL, 1); | |
1114 | } | |
1115 | ||
53c5240f PA |
1116 | /* Behave like lookup_symbol_in_language, but performed with the |
1117 | current language. */ | |
1118 | ||
1119 | struct symbol * | |
1120 | lookup_symbol (const char *name, const struct block *block, | |
2570f2b7 | 1121 | domain_enum domain, int *is_a_field_of_this) |
53c5240f PA |
1122 | { |
1123 | return lookup_symbol_in_language (name, block, domain, | |
1124 | current_language->la_language, | |
2570f2b7 | 1125 | is_a_field_of_this); |
53c5240f PA |
1126 | } |
1127 | ||
1128 | /* Behave like lookup_symbol except that NAME is the natural name | |
5ad1c190 DC |
1129 | of the symbol that we're looking for and, if LINKAGE_NAME is |
1130 | non-NULL, ensure that the symbol's linkage name matches as | |
1131 | well. */ | |
1132 | ||
fba7f19c | 1133 | static struct symbol * |
94af9270 KS |
1134 | lookup_symbol_aux (const char *name, const struct block *block, |
1135 | const domain_enum domain, enum language language, | |
faf68db7 TT |
1136 | int *is_a_field_of_this, |
1137 | int for_type) | |
fba7f19c | 1138 | { |
8155455b | 1139 | struct symbol *sym; |
53c5240f | 1140 | const struct language_defn *langdef; |
406bc4de | 1141 | |
9a146a11 EZ |
1142 | /* Make sure we do something sensible with is_a_field_of_this, since |
1143 | the callers that set this parameter to some non-null value will | |
1144 | certainly use it later and expect it to be either 0 or 1. | |
1145 | If we don't set it, the contents of is_a_field_of_this are | |
1146 | undefined. */ | |
1147 | if (is_a_field_of_this != NULL) | |
1148 | *is_a_field_of_this = 0; | |
1149 | ||
e4051eeb DC |
1150 | /* Search specified block and its superiors. Don't search |
1151 | STATIC_BLOCK or GLOBAL_BLOCK. */ | |
c906108c | 1152 | |
13387711 | 1153 | sym = lookup_symbol_aux_local (name, block, domain, language); |
8155455b DC |
1154 | if (sym != NULL) |
1155 | return sym; | |
c906108c | 1156 | |
53c5240f | 1157 | /* If requested to do so by the caller and if appropriate for LANGUAGE, |
13387711 | 1158 | check to see if NAME is a field of `this'. */ |
53c5240f PA |
1159 | |
1160 | langdef = language_def (language); | |
5f9a71c3 | 1161 | |
2b2d9e11 VP |
1162 | if (langdef->la_name_of_this != NULL && is_a_field_of_this != NULL |
1163 | && block != NULL) | |
c906108c | 1164 | { |
2b2d9e11 | 1165 | struct symbol *sym = NULL; |
8540c487 | 1166 | const struct block *function_block = block; |
433759f7 | 1167 | |
2b2d9e11 VP |
1168 | /* 'this' is only defined in the function's block, so find the |
1169 | enclosing function block. */ | |
8540c487 SW |
1170 | for (; function_block && !BLOCK_FUNCTION (function_block); |
1171 | function_block = BLOCK_SUPERBLOCK (function_block)); | |
2b2d9e11 | 1172 | |
8540c487 SW |
1173 | if (function_block && !dict_empty (BLOCK_DICT (function_block))) |
1174 | sym = lookup_block_symbol (function_block, langdef->la_name_of_this, | |
94af9270 | 1175 | VAR_DOMAIN); |
2b2d9e11 | 1176 | if (sym) |
c906108c | 1177 | { |
2b2d9e11 | 1178 | struct type *t = sym->type; |
9af17804 | 1179 | |
2b2d9e11 VP |
1180 | /* I'm not really sure that type of this can ever |
1181 | be typedefed; just be safe. */ | |
1182 | CHECK_TYPEDEF (t); | |
1183 | if (TYPE_CODE (t) == TYPE_CODE_PTR | |
1184 | || TYPE_CODE (t) == TYPE_CODE_REF) | |
1185 | t = TYPE_TARGET_TYPE (t); | |
9af17804 | 1186 | |
2b2d9e11 VP |
1187 | if (TYPE_CODE (t) != TYPE_CODE_STRUCT |
1188 | && TYPE_CODE (t) != TYPE_CODE_UNION) | |
9af17804 | 1189 | error (_("Internal error: `%s' is not an aggregate"), |
2b2d9e11 | 1190 | langdef->la_name_of_this); |
9af17804 | 1191 | |
2b2d9e11 VP |
1192 | if (check_field (t, name)) |
1193 | { | |
1194 | *is_a_field_of_this = 1; | |
2b2d9e11 VP |
1195 | return NULL; |
1196 | } | |
c906108c SS |
1197 | } |
1198 | } | |
1199 | ||
53c5240f | 1200 | /* Now do whatever is appropriate for LANGUAGE to look |
faf68db7 TT |
1201 | up static and global variables. If we are searching for a type, |
1202 | we bypass this lookup, because types aren't global. */ | |
c906108c | 1203 | |
faf68db7 TT |
1204 | if (!for_type) |
1205 | { | |
1206 | sym = langdef->la_lookup_symbol_nonlocal (name, block, domain); | |
1207 | if (sym != NULL) | |
1208 | return sym; | |
1209 | } | |
c906108c | 1210 | |
faf68db7 TT |
1211 | /* Now search all static file-level symbols. When searching for a |
1212 | type, this is what we generally want, because types are put into | |
1213 | the file scope. For other objects, not strictly correct, but | |
1214 | more useful than an error. */ | |
41f62f39 JK |
1215 | |
1216 | return lookup_static_symbol_aux (name, domain); | |
1217 | } | |
1218 | ||
1219 | /* Search all static file-level symbols for NAME from DOMAIN. Do the symtabs | |
1220 | first, then check the psymtabs. If a psymtab indicates the existence of the | |
1221 | desired name as a file-level static, then do psymtab-to-symtab conversion on | |
1222 | the fly and return the found symbol. */ | |
1223 | ||
1224 | struct symbol * | |
1225 | lookup_static_symbol_aux (const char *name, const domain_enum domain) | |
1226 | { | |
1227 | struct objfile *objfile; | |
1228 | struct symbol *sym; | |
c906108c | 1229 | |
94af9270 | 1230 | sym = lookup_symbol_aux_symtabs (STATIC_BLOCK, name, domain); |
8155455b DC |
1231 | if (sym != NULL) |
1232 | return sym; | |
9af17804 | 1233 | |
ccefe4c4 TT |
1234 | ALL_OBJFILES (objfile) |
1235 | { | |
1236 | sym = lookup_symbol_aux_quick (objfile, STATIC_BLOCK, name, domain); | |
1237 | if (sym != NULL) | |
1238 | return sym; | |
1239 | } | |
c906108c | 1240 | |
8155455b | 1241 | return NULL; |
c906108c | 1242 | } |
8155455b | 1243 | |
e4051eeb | 1244 | /* Check to see if the symbol is defined in BLOCK or its superiors. |
89a9d1b1 | 1245 | Don't search STATIC_BLOCK or GLOBAL_BLOCK. */ |
8155455b DC |
1246 | |
1247 | static struct symbol * | |
94af9270 | 1248 | lookup_symbol_aux_local (const char *name, const struct block *block, |
13387711 SW |
1249 | const domain_enum domain, |
1250 | enum language language) | |
8155455b DC |
1251 | { |
1252 | struct symbol *sym; | |
89a9d1b1 | 1253 | const struct block *static_block = block_static_block (block); |
13387711 SW |
1254 | const char *scope = block_scope (block); |
1255 | ||
e4051eeb DC |
1256 | /* Check if either no block is specified or it's a global block. */ |
1257 | ||
89a9d1b1 DC |
1258 | if (static_block == NULL) |
1259 | return NULL; | |
e4051eeb | 1260 | |
89a9d1b1 | 1261 | while (block != static_block) |
f61e8913 | 1262 | { |
94af9270 | 1263 | sym = lookup_symbol_aux_block (name, block, domain); |
f61e8913 DC |
1264 | if (sym != NULL) |
1265 | return sym; | |
edb3359d | 1266 | |
f55ee35c | 1267 | if (language == language_cplus || language == language_fortran) |
13387711 | 1268 | { |
34eaf542 TT |
1269 | sym = cp_lookup_symbol_imports_or_template (scope, name, block, |
1270 | domain); | |
13387711 SW |
1271 | if (sym != NULL) |
1272 | return sym; | |
1273 | } | |
1274 | ||
edb3359d DJ |
1275 | if (BLOCK_FUNCTION (block) != NULL && block_inlined_p (block)) |
1276 | break; | |
f61e8913 DC |
1277 | block = BLOCK_SUPERBLOCK (block); |
1278 | } | |
1279 | ||
edb3359d | 1280 | /* We've reached the edge of the function without finding a result. */ |
e4051eeb | 1281 | |
f61e8913 DC |
1282 | return NULL; |
1283 | } | |
1284 | ||
3a40aaa0 UW |
1285 | /* Look up OBJFILE to BLOCK. */ |
1286 | ||
c0201579 | 1287 | struct objfile * |
3a40aaa0 UW |
1288 | lookup_objfile_from_block (const struct block *block) |
1289 | { | |
1290 | struct objfile *obj; | |
1291 | struct symtab *s; | |
1292 | ||
1293 | if (block == NULL) | |
1294 | return NULL; | |
1295 | ||
1296 | block = block_global_block (block); | |
1297 | /* Go through SYMTABS. */ | |
1298 | ALL_SYMTABS (obj, s) | |
1299 | if (block == BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK)) | |
61f0d762 JK |
1300 | { |
1301 | if (obj->separate_debug_objfile_backlink) | |
1302 | obj = obj->separate_debug_objfile_backlink; | |
1303 | ||
1304 | return obj; | |
1305 | } | |
3a40aaa0 UW |
1306 | |
1307 | return NULL; | |
1308 | } | |
1309 | ||
6c9353d3 PA |
1310 | /* Look up a symbol in a block; if found, fixup the symbol, and set |
1311 | block_found appropriately. */ | |
f61e8913 | 1312 | |
5f9a71c3 | 1313 | struct symbol * |
94af9270 | 1314 | lookup_symbol_aux_block (const char *name, const struct block *block, |
21b556f4 | 1315 | const domain_enum domain) |
f61e8913 DC |
1316 | { |
1317 | struct symbol *sym; | |
f61e8913 | 1318 | |
94af9270 | 1319 | sym = lookup_block_symbol (block, name, domain); |
f61e8913 | 1320 | if (sym) |
8155455b | 1321 | { |
f61e8913 | 1322 | block_found = block; |
21b556f4 | 1323 | return fixup_symbol_section (sym, NULL); |
8155455b DC |
1324 | } |
1325 | ||
1326 | return NULL; | |
1327 | } | |
1328 | ||
3a40aaa0 UW |
1329 | /* Check all global symbols in OBJFILE in symtabs and |
1330 | psymtabs. */ | |
1331 | ||
1332 | struct symbol * | |
15d123c9 | 1333 | lookup_global_symbol_from_objfile (const struct objfile *main_objfile, |
3a40aaa0 | 1334 | const char *name, |
21b556f4 | 1335 | const domain_enum domain) |
3a40aaa0 | 1336 | { |
15d123c9 | 1337 | const struct objfile *objfile; |
3a40aaa0 UW |
1338 | struct symbol *sym; |
1339 | struct blockvector *bv; | |
1340 | const struct block *block; | |
1341 | struct symtab *s; | |
3a40aaa0 | 1342 | |
15d123c9 TG |
1343 | for (objfile = main_objfile; |
1344 | objfile; | |
1345 | objfile = objfile_separate_debug_iterate (main_objfile, objfile)) | |
1346 | { | |
1347 | /* Go through symtabs. */ | |
1348 | ALL_OBJFILE_SYMTABS (objfile, s) | |
1349 | { | |
1350 | bv = BLOCKVECTOR (s); | |
1351 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
94af9270 | 1352 | sym = lookup_block_symbol (block, name, domain); |
15d123c9 TG |
1353 | if (sym) |
1354 | { | |
1355 | block_found = block; | |
1356 | return fixup_symbol_section (sym, (struct objfile *)objfile); | |
1357 | } | |
1358 | } | |
1359 | ||
ccefe4c4 TT |
1360 | sym = lookup_symbol_aux_quick ((struct objfile *) objfile, GLOBAL_BLOCK, |
1361 | name, domain); | |
1362 | if (sym) | |
1363 | return sym; | |
15d123c9 | 1364 | } |
56e3f43c | 1365 | |
3a40aaa0 UW |
1366 | return NULL; |
1367 | } | |
1368 | ||
faf68db7 TT |
1369 | /* A helper for lookup_symbol_aux_symtabs that is passed as a callback |
1370 | to the expand_one_symtab_matching quick function. */ | |
1371 | ||
1372 | static struct symbol * | |
1373 | match_symbol_aux (struct symtab *symtab, | |
1374 | int kind, const char *name, domain_enum domain, | |
1375 | void *arg) | |
1376 | { | |
1377 | struct objfile *objfile = arg; | |
1378 | ||
1379 | if (symtab->primary) | |
1380 | { | |
1381 | struct symbol *sym; | |
1382 | struct blockvector *bv; | |
1383 | const struct block *block; | |
1384 | ||
1385 | bv = BLOCKVECTOR (symtab); | |
1386 | block = BLOCKVECTOR_BLOCK (bv, kind); | |
1387 | sym = lookup_block_symbol (block, name, domain); | |
1388 | if (sym) | |
1389 | { | |
1390 | block_found = block; | |
1391 | return fixup_symbol_section (sym, objfile); | |
1392 | } | |
1393 | } | |
1394 | ||
1395 | return NULL; | |
1396 | } | |
1397 | ||
8155455b DC |
1398 | /* Check to see if the symbol is defined in one of the symtabs. |
1399 | BLOCK_INDEX should be either GLOBAL_BLOCK or STATIC_BLOCK, | |
1400 | depending on whether or not we want to search global symbols or | |
1401 | static symbols. */ | |
1402 | ||
1403 | static struct symbol * | |
94af9270 | 1404 | lookup_symbol_aux_symtabs (int block_index, const char *name, |
21b556f4 | 1405 | const domain_enum domain) |
8155455b DC |
1406 | { |
1407 | struct symbol *sym; | |
1408 | struct objfile *objfile; | |
1409 | struct blockvector *bv; | |
1410 | const struct block *block; | |
1411 | struct symtab *s; | |
1412 | ||
58b6ab13 | 1413 | ALL_OBJFILES (objfile) |
8155455b | 1414 | { |
58b6ab13 TT |
1415 | ALL_OBJFILE_SYMTABS (objfile, s) |
1416 | if (s->primary) | |
1417 | { | |
1418 | bv = BLOCKVECTOR (s); | |
1419 | block = BLOCKVECTOR_BLOCK (bv, block_index); | |
1420 | sym = lookup_block_symbol (block, name, domain); | |
1421 | if (sym) | |
1422 | { | |
1423 | block_found = block; | |
1424 | return fixup_symbol_section (sym, objfile); | |
1425 | } | |
1426 | } | |
faf68db7 TT |
1427 | |
1428 | if (objfile->sf) | |
1429 | { | |
1430 | sym = objfile->sf->qf->expand_one_symtab_matching (objfile, | |
1431 | block_index, | |
1432 | name, domain, | |
1433 | match_symbol_aux, | |
1434 | objfile); | |
1435 | if (sym) | |
1436 | return sym; | |
1437 | } | |
8155455b DC |
1438 | } |
1439 | ||
1440 | return NULL; | |
1441 | } | |
1442 | ||
ccefe4c4 TT |
1443 | /* A helper function for lookup_symbol_aux that interfaces with the |
1444 | "quick" symbol table functions. */ | |
8155455b DC |
1445 | |
1446 | static struct symbol * | |
ccefe4c4 TT |
1447 | lookup_symbol_aux_quick (struct objfile *objfile, int kind, |
1448 | const char *name, const domain_enum domain) | |
8155455b | 1449 | { |
ccefe4c4 | 1450 | struct symtab *symtab; |
8155455b DC |
1451 | struct blockvector *bv; |
1452 | const struct block *block; | |
ccefe4c4 | 1453 | struct symbol *sym; |
8155455b | 1454 | |
ccefe4c4 TT |
1455 | if (!objfile->sf) |
1456 | return NULL; | |
1457 | symtab = objfile->sf->qf->lookup_symbol (objfile, kind, name, domain); | |
1458 | if (!symtab) | |
1459 | return NULL; | |
8155455b | 1460 | |
ccefe4c4 TT |
1461 | bv = BLOCKVECTOR (symtab); |
1462 | block = BLOCKVECTOR_BLOCK (bv, kind); | |
1463 | sym = lookup_block_symbol (block, name, domain); | |
1464 | if (!sym) | |
1465 | { | |
1466 | /* This shouldn't be necessary, but as a last resort try | |
1467 | looking in the statics even though the psymtab claimed | |
1468 | the symbol was global, or vice-versa. It's possible | |
1469 | that the psymtab gets it wrong in some cases. */ | |
1470 | ||
1471 | /* FIXME: carlton/2002-09-30: Should we really do that? | |
1472 | If that happens, isn't it likely to be a GDB error, in | |
1473 | which case we should fix the GDB error rather than | |
1474 | silently dealing with it here? So I'd vote for | |
1475 | removing the check for the symbol in the other | |
1476 | block. */ | |
1477 | block = BLOCKVECTOR_BLOCK (bv, | |
1478 | kind == GLOBAL_BLOCK ? | |
1479 | STATIC_BLOCK : GLOBAL_BLOCK); | |
1480 | sym = lookup_block_symbol (block, name, domain); | |
1481 | if (!sym) | |
1482 | 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>)."), | |
1483 | kind == GLOBAL_BLOCK ? "global" : "static", | |
1484 | name, symtab->filename, name, name); | |
1485 | } | |
1486 | return fixup_symbol_section (sym, objfile); | |
8155455b DC |
1487 | } |
1488 | ||
5f9a71c3 DC |
1489 | /* A default version of lookup_symbol_nonlocal for use by languages |
1490 | that can't think of anything better to do. This implements the C | |
1491 | lookup rules. */ | |
1492 | ||
1493 | struct symbol * | |
1494 | basic_lookup_symbol_nonlocal (const char *name, | |
5f9a71c3 | 1495 | const struct block *block, |
21b556f4 | 1496 | const domain_enum domain) |
5f9a71c3 DC |
1497 | { |
1498 | struct symbol *sym; | |
1499 | ||
1500 | /* NOTE: carlton/2003-05-19: The comments below were written when | |
1501 | this (or what turned into this) was part of lookup_symbol_aux; | |
1502 | I'm much less worried about these questions now, since these | |
1503 | decisions have turned out well, but I leave these comments here | |
1504 | for posterity. */ | |
1505 | ||
1506 | /* NOTE: carlton/2002-12-05: There is a question as to whether or | |
1507 | not it would be appropriate to search the current global block | |
1508 | here as well. (That's what this code used to do before the | |
1509 | is_a_field_of_this check was moved up.) On the one hand, it's | |
1510 | redundant with the lookup_symbol_aux_symtabs search that happens | |
1511 | next. On the other hand, if decode_line_1 is passed an argument | |
1512 | like filename:var, then the user presumably wants 'var' to be | |
1513 | searched for in filename. On the third hand, there shouldn't be | |
1514 | multiple global variables all of which are named 'var', and it's | |
1515 | not like decode_line_1 has ever restricted its search to only | |
1516 | global variables in a single filename. All in all, only | |
1517 | searching the static block here seems best: it's correct and it's | |
1518 | cleanest. */ | |
1519 | ||
1520 | /* NOTE: carlton/2002-12-05: There's also a possible performance | |
1521 | issue here: if you usually search for global symbols in the | |
1522 | current file, then it would be slightly better to search the | |
1523 | current global block before searching all the symtabs. But there | |
1524 | are other factors that have a much greater effect on performance | |
1525 | than that one, so I don't think we should worry about that for | |
1526 | now. */ | |
1527 | ||
94af9270 | 1528 | sym = lookup_symbol_static (name, block, domain); |
5f9a71c3 DC |
1529 | if (sym != NULL) |
1530 | return sym; | |
1531 | ||
94af9270 | 1532 | return lookup_symbol_global (name, block, domain); |
5f9a71c3 DC |
1533 | } |
1534 | ||
1535 | /* Lookup a symbol in the static block associated to BLOCK, if there | |
1536 | is one; do nothing if BLOCK is NULL or a global block. */ | |
1537 | ||
1538 | struct symbol * | |
1539 | lookup_symbol_static (const char *name, | |
5f9a71c3 | 1540 | const struct block *block, |
21b556f4 | 1541 | const domain_enum domain) |
5f9a71c3 DC |
1542 | { |
1543 | const struct block *static_block = block_static_block (block); | |
1544 | ||
1545 | if (static_block != NULL) | |
94af9270 | 1546 | return lookup_symbol_aux_block (name, static_block, domain); |
5f9a71c3 DC |
1547 | else |
1548 | return NULL; | |
1549 | } | |
1550 | ||
1551 | /* Lookup a symbol in all files' global blocks (searching psymtabs if | |
1552 | necessary). */ | |
1553 | ||
1554 | struct symbol * | |
1555 | lookup_symbol_global (const char *name, | |
3a40aaa0 | 1556 | const struct block *block, |
21b556f4 | 1557 | const domain_enum domain) |
5f9a71c3 | 1558 | { |
3a40aaa0 UW |
1559 | struct symbol *sym = NULL; |
1560 | struct objfile *objfile = NULL; | |
1561 | ||
1562 | /* Call library-specific lookup procedure. */ | |
1563 | objfile = lookup_objfile_from_block (block); | |
1564 | if (objfile != NULL) | |
94af9270 | 1565 | sym = solib_global_lookup (objfile, name, domain); |
3a40aaa0 UW |
1566 | if (sym != NULL) |
1567 | return sym; | |
5f9a71c3 | 1568 | |
94af9270 | 1569 | sym = lookup_symbol_aux_symtabs (GLOBAL_BLOCK, name, domain); |
5f9a71c3 DC |
1570 | if (sym != NULL) |
1571 | return sym; | |
1572 | ||
ccefe4c4 TT |
1573 | ALL_OBJFILES (objfile) |
1574 | { | |
1575 | sym = lookup_symbol_aux_quick (objfile, GLOBAL_BLOCK, name, domain); | |
1576 | if (sym) | |
1577 | return sym; | |
1578 | } | |
1579 | ||
1580 | return NULL; | |
5f9a71c3 DC |
1581 | } |
1582 | ||
5eeb2539 | 1583 | int |
9af17804 | 1584 | symbol_matches_domain (enum language symbol_language, |
5eeb2539 AR |
1585 | domain_enum symbol_domain, |
1586 | domain_enum domain) | |
1587 | { | |
9af17804 | 1588 | /* For C++ "struct foo { ... }" also defines a typedef for "foo". |
5eeb2539 AR |
1589 | A Java class declaration also defines a typedef for the class. |
1590 | Similarly, any Ada type declaration implicitly defines a typedef. */ | |
1591 | if (symbol_language == language_cplus | |
6aecb9c2 | 1592 | || symbol_language == language_d |
5eeb2539 AR |
1593 | || symbol_language == language_java |
1594 | || symbol_language == language_ada) | |
1595 | { | |
1596 | if ((domain == VAR_DOMAIN || domain == STRUCT_DOMAIN) | |
1597 | && symbol_domain == STRUCT_DOMAIN) | |
1598 | return 1; | |
1599 | } | |
1600 | /* For all other languages, strict match is required. */ | |
1601 | return (symbol_domain == domain); | |
1602 | } | |
1603 | ||
ccefe4c4 TT |
1604 | /* Look up a type named NAME in the struct_domain. The type returned |
1605 | must not be opaque -- i.e., must have at least one field | |
1606 | defined. */ | |
c906108c | 1607 | |
ccefe4c4 TT |
1608 | struct type * |
1609 | lookup_transparent_type (const char *name) | |
c906108c | 1610 | { |
ccefe4c4 TT |
1611 | return current_language->la_lookup_transparent_type (name); |
1612 | } | |
9af17804 | 1613 | |
ccefe4c4 TT |
1614 | /* A helper for basic_lookup_transparent_type that interfaces with the |
1615 | "quick" symbol table functions. */ | |
357e46e7 | 1616 | |
ccefe4c4 TT |
1617 | static struct type * |
1618 | basic_lookup_transparent_type_quick (struct objfile *objfile, int kind, | |
1619 | const char *name) | |
1620 | { | |
1621 | struct symtab *symtab; | |
1622 | struct blockvector *bv; | |
1623 | struct block *block; | |
1624 | struct symbol *sym; | |
c906108c | 1625 | |
ccefe4c4 TT |
1626 | if (!objfile->sf) |
1627 | return NULL; | |
1628 | symtab = objfile->sf->qf->lookup_symbol (objfile, kind, name, STRUCT_DOMAIN); | |
1629 | if (!symtab) | |
1630 | return NULL; | |
c906108c | 1631 | |
ccefe4c4 TT |
1632 | bv = BLOCKVECTOR (symtab); |
1633 | block = BLOCKVECTOR_BLOCK (bv, kind); | |
1634 | sym = lookup_block_symbol (block, name, STRUCT_DOMAIN); | |
1635 | if (!sym) | |
9af17804 | 1636 | { |
ccefe4c4 TT |
1637 | int other_kind = kind == GLOBAL_BLOCK ? STATIC_BLOCK : GLOBAL_BLOCK; |
1638 | ||
1639 | /* This shouldn't be necessary, but as a last resort | |
1640 | * try looking in the 'other kind' even though the psymtab | |
1641 | * claimed the symbol was one thing. It's possible that | |
1642 | * the psymtab gets it wrong in some cases. | |
1643 | */ | |
1644 | block = BLOCKVECTOR_BLOCK (bv, other_kind); | |
1645 | sym = lookup_block_symbol (block, name, STRUCT_DOMAIN); | |
1646 | if (!sym) | |
1647 | /* FIXME; error is wrong in one case */ | |
1648 | error (_("Internal: global symbol `%s' found in %s psymtab but not in symtab.\n\ | |
1649 | %s may be an inlined function, or may be a template function\n\ | |
1650 | (if a template, try specifying an instantiation: %s<type>)."), | |
1651 | name, symtab->filename, name, name); | |
c906108c | 1652 | } |
ccefe4c4 TT |
1653 | if (!TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))) |
1654 | return SYMBOL_TYPE (sym); | |
c906108c | 1655 | |
ccefe4c4 | 1656 | return NULL; |
b368761e | 1657 | } |
c906108c | 1658 | |
faf68db7 TT |
1659 | /* A helper function for basic_lookup_transparent_type that is passed |
1660 | to the expand_one_symtab_matching quick function. */ | |
1661 | ||
1662 | static struct symbol * | |
1663 | match_transparent_type (struct symtab *symtab, | |
1664 | int kind, const char *name, domain_enum domain, | |
1665 | void *data) | |
1666 | { | |
1667 | if (symtab->primary) | |
1668 | { | |
1669 | struct blockvector *bv; | |
1670 | struct block *block; | |
1671 | struct symbol *sym; | |
1672 | ||
1673 | bv = BLOCKVECTOR (symtab); | |
1674 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
1675 | sym = lookup_block_symbol (block, name, STRUCT_DOMAIN); | |
1676 | if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))) | |
1677 | return sym; | |
1678 | } | |
1679 | ||
1680 | return NULL; | |
1681 | } | |
1682 | ||
b368761e DC |
1683 | /* The standard implementation of lookup_transparent_type. This code |
1684 | was modeled on lookup_symbol -- the parts not relevant to looking | |
1685 | up types were just left out. In particular it's assumed here that | |
1686 | types are available in struct_domain and only at file-static or | |
1687 | global blocks. */ | |
c906108c SS |
1688 | |
1689 | struct type * | |
b368761e | 1690 | basic_lookup_transparent_type (const char *name) |
c906108c | 1691 | { |
52f0bd74 AC |
1692 | struct symbol *sym; |
1693 | struct symtab *s = NULL; | |
c906108c | 1694 | struct blockvector *bv; |
52f0bd74 AC |
1695 | struct objfile *objfile; |
1696 | struct block *block; | |
ccefe4c4 | 1697 | struct type *t; |
c906108c SS |
1698 | |
1699 | /* Now search all the global symbols. Do the symtab's first, then | |
1700 | check the psymtab's. If a psymtab indicates the existence | |
1701 | of the desired name as a global, then do psymtab-to-symtab | |
1702 | conversion on the fly and return the found symbol. */ | |
c5aa993b | 1703 | |
58b6ab13 | 1704 | ALL_OBJFILES (objfile) |
c5aa993b | 1705 | { |
58b6ab13 TT |
1706 | ALL_OBJFILE_SYMTABS (objfile, s) |
1707 | if (s->primary) | |
1708 | { | |
1709 | bv = BLOCKVECTOR (s); | |
1710 | block = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
1711 | sym = lookup_block_symbol (block, name, STRUCT_DOMAIN); | |
1712 | if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))) | |
1713 | { | |
1714 | return SYMBOL_TYPE (sym); | |
1715 | } | |
1716 | } | |
faf68db7 TT |
1717 | |
1718 | if (objfile->sf) | |
1719 | { | |
1720 | sym | |
1721 | = objfile->sf->qf->expand_one_symtab_matching (objfile, | |
1722 | GLOBAL_BLOCK, name, | |
1723 | STRUCT_DOMAIN, | |
1724 | match_transparent_type, | |
1725 | NULL); | |
1726 | if (sym) | |
1727 | return SYMBOL_TYPE (sym); | |
1728 | } | |
c5aa993b | 1729 | } |
c906108c | 1730 | |
ccefe4c4 | 1731 | ALL_OBJFILES (objfile) |
c5aa993b | 1732 | { |
ccefe4c4 TT |
1733 | t = basic_lookup_transparent_type_quick (objfile, GLOBAL_BLOCK, name); |
1734 | if (t) | |
1735 | return t; | |
c5aa993b | 1736 | } |
c906108c SS |
1737 | |
1738 | /* Now search the static file-level symbols. | |
1739 | Not strictly correct, but more useful than an error. | |
1740 | Do the symtab's first, then | |
1741 | check the psymtab's. If a psymtab indicates the existence | |
1742 | of the desired name as a file-level static, then do psymtab-to-symtab | |
1743 | conversion on the fly and return the found symbol. | |
1744 | */ | |
1745 | ||
54ec275a | 1746 | ALL_OBJFILES (objfile) |
c5aa993b | 1747 | { |
54ec275a | 1748 | ALL_OBJFILE_SYMTABS (objfile, s) |
c5aa993b | 1749 | { |
54ec275a KS |
1750 | bv = BLOCKVECTOR (s); |
1751 | block = BLOCKVECTOR_BLOCK (bv, STATIC_BLOCK); | |
1752 | sym = lookup_block_symbol (block, name, STRUCT_DOMAIN); | |
1753 | if (sym && !TYPE_IS_OPAQUE (SYMBOL_TYPE (sym))) | |
1754 | { | |
1755 | return SYMBOL_TYPE (sym); | |
1756 | } | |
c5aa993b | 1757 | } |
faf68db7 TT |
1758 | |
1759 | if (objfile->sf) | |
1760 | { | |
1761 | sym | |
1762 | = objfile->sf->qf->expand_one_symtab_matching (objfile, | |
1763 | STATIC_BLOCK, name, | |
1764 | STRUCT_DOMAIN, | |
1765 | match_transparent_type, | |
1766 | NULL); | |
1767 | if (sym) | |
1768 | return SYMBOL_TYPE (sym); | |
1769 | } | |
c5aa993b | 1770 | } |
c906108c | 1771 | |
ccefe4c4 | 1772 | ALL_OBJFILES (objfile) |
c5aa993b | 1773 | { |
ccefe4c4 TT |
1774 | t = basic_lookup_transparent_type_quick (objfile, STATIC_BLOCK, name); |
1775 | if (t) | |
1776 | return t; | |
c5aa993b | 1777 | } |
ccefe4c4 | 1778 | |
c906108c SS |
1779 | return (struct type *) 0; |
1780 | } | |
1781 | ||
1782 | ||
ccefe4c4 | 1783 | /* Find the name of the file containing main(). */ |
c906108c SS |
1784 | /* FIXME: What about languages without main() or specially linked |
1785 | executables that have no main() ? */ | |
1786 | ||
dd786858 | 1787 | const char * |
ccefe4c4 | 1788 | find_main_filename (void) |
c906108c | 1789 | { |
52f0bd74 | 1790 | struct objfile *objfile; |
dd786858 | 1791 | char *name = main_name (); |
c906108c | 1792 | |
ccefe4c4 | 1793 | ALL_OBJFILES (objfile) |
c5aa993b | 1794 | { |
dd786858 TT |
1795 | const char *result; |
1796 | ||
ccefe4c4 TT |
1797 | if (!objfile->sf) |
1798 | continue; | |
1799 | result = objfile->sf->qf->find_symbol_file (objfile, name); | |
1800 | if (result) | |
1801 | return result; | |
c5aa993b | 1802 | } |
c906108c SS |
1803 | return (NULL); |
1804 | } | |
1805 | ||
176620f1 | 1806 | /* Search BLOCK for symbol NAME in DOMAIN. |
c906108c SS |
1807 | |
1808 | Note that if NAME is the demangled form of a C++ symbol, we will fail | |
1809 | to find a match during the binary search of the non-encoded names, but | |
1810 | for now we don't worry about the slight inefficiency of looking for | |
1811 | a match we'll never find, since it will go pretty quick. Once the | |
1812 | binary search terminates, we drop through and do a straight linear | |
1bae87b9 | 1813 | search on the symbols. Each symbol which is marked as being a ObjC/C++ |
9af17804 | 1814 | symbol (language_cplus or language_objc set) has both the encoded and |
1bae87b9 | 1815 | non-encoded names tested for a match. |
3121eff0 | 1816 | */ |
c906108c SS |
1817 | |
1818 | struct symbol * | |
aa1ee363 | 1819 | lookup_block_symbol (const struct block *block, const char *name, |
176620f1 | 1820 | const domain_enum domain) |
c906108c | 1821 | { |
de4f826b DC |
1822 | struct dict_iterator iter; |
1823 | struct symbol *sym; | |
c906108c | 1824 | |
de4f826b | 1825 | if (!BLOCK_FUNCTION (block)) |
261397f8 | 1826 | { |
de4f826b DC |
1827 | for (sym = dict_iter_name_first (BLOCK_DICT (block), name, &iter); |
1828 | sym != NULL; | |
1829 | sym = dict_iter_name_next (name, &iter)) | |
261397f8 | 1830 | { |
5eeb2539 | 1831 | if (symbol_matches_domain (SYMBOL_LANGUAGE (sym), |
94af9270 | 1832 | SYMBOL_DOMAIN (sym), domain)) |
261397f8 DJ |
1833 | return sym; |
1834 | } | |
1835 | return NULL; | |
1836 | } | |
526e70c0 | 1837 | else |
c906108c | 1838 | { |
526e70c0 DC |
1839 | /* Note that parameter symbols do not always show up last in the |
1840 | list; this loop makes sure to take anything else other than | |
1841 | parameter symbols first; it only uses parameter symbols as a | |
1842 | last resort. Note that this only takes up extra computation | |
1843 | time on a match. */ | |
de4f826b DC |
1844 | |
1845 | struct symbol *sym_found = NULL; | |
1846 | ||
1847 | for (sym = dict_iter_name_first (BLOCK_DICT (block), name, &iter); | |
1848 | sym != NULL; | |
1849 | sym = dict_iter_name_next (name, &iter)) | |
c906108c | 1850 | { |
5eeb2539 | 1851 | if (symbol_matches_domain (SYMBOL_LANGUAGE (sym), |
94af9270 | 1852 | SYMBOL_DOMAIN (sym), domain)) |
c906108c | 1853 | { |
c906108c | 1854 | sym_found = sym; |
2a2d4dc3 | 1855 | if (!SYMBOL_IS_ARGUMENT (sym)) |
c906108c SS |
1856 | { |
1857 | break; | |
1858 | } | |
1859 | } | |
c906108c | 1860 | } |
de4f826b | 1861 | return (sym_found); /* Will be NULL if not found. */ |
c906108c | 1862 | } |
c906108c SS |
1863 | } |
1864 | ||
c906108c SS |
1865 | /* Find the symtab associated with PC and SECTION. Look through the |
1866 | psymtabs and read in another symtab if necessary. */ | |
1867 | ||
1868 | struct symtab * | |
714835d5 | 1869 | find_pc_sect_symtab (CORE_ADDR pc, struct obj_section *section) |
c906108c | 1870 | { |
52f0bd74 | 1871 | struct block *b; |
c906108c | 1872 | struct blockvector *bv; |
52f0bd74 AC |
1873 | struct symtab *s = NULL; |
1874 | struct symtab *best_s = NULL; | |
52f0bd74 | 1875 | struct objfile *objfile; |
6c95b8df | 1876 | struct program_space *pspace; |
c906108c | 1877 | CORE_ADDR distance = 0; |
8a48e967 DJ |
1878 | struct minimal_symbol *msymbol; |
1879 | ||
6c95b8df PA |
1880 | pspace = current_program_space; |
1881 | ||
8a48e967 DJ |
1882 | /* If we know that this is not a text address, return failure. This is |
1883 | necessary because we loop based on the block's high and low code | |
1884 | addresses, which do not include the data ranges, and because | |
1885 | we call find_pc_sect_psymtab which has a similar restriction based | |
1886 | on the partial_symtab's texthigh and textlow. */ | |
1887 | msymbol = lookup_minimal_symbol_by_pc_section (pc, section); | |
1888 | if (msymbol | |
712f90be TT |
1889 | && (MSYMBOL_TYPE (msymbol) == mst_data |
1890 | || MSYMBOL_TYPE (msymbol) == mst_bss | |
1891 | || MSYMBOL_TYPE (msymbol) == mst_abs | |
1892 | || MSYMBOL_TYPE (msymbol) == mst_file_data | |
1893 | || MSYMBOL_TYPE (msymbol) == mst_file_bss)) | |
8a48e967 | 1894 | return NULL; |
c906108c SS |
1895 | |
1896 | /* Search all symtabs for the one whose file contains our address, and which | |
1897 | is the smallest of all the ones containing the address. This is designed | |
1898 | to deal with a case like symtab a is at 0x1000-0x2000 and 0x3000-0x4000 | |
1899 | and symtab b is at 0x2000-0x3000. So the GLOBAL_BLOCK for a is from | |
1900 | 0x1000-0x4000, but for address 0x2345 we want to return symtab b. | |
1901 | ||
1902 | This happens for native ecoff format, where code from included files | |
1903 | gets its own symtab. The symtab for the included file should have | |
1904 | been read in already via the dependency mechanism. | |
1905 | It might be swifter to create several symtabs with the same name | |
1906 | like xcoff does (I'm not sure). | |
1907 | ||
1908 | It also happens for objfiles that have their functions reordered. | |
1909 | For these, the symtab we are looking for is not necessarily read in. */ | |
1910 | ||
11309657 | 1911 | ALL_PRIMARY_SYMTABS (objfile, s) |
c5aa993b JM |
1912 | { |
1913 | bv = BLOCKVECTOR (s); | |
1914 | b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK); | |
c906108c | 1915 | |
c5aa993b | 1916 | if (BLOCK_START (b) <= pc |
c5aa993b | 1917 | && BLOCK_END (b) > pc |
c5aa993b JM |
1918 | && (distance == 0 |
1919 | || BLOCK_END (b) - BLOCK_START (b) < distance)) | |
1920 | { | |
1921 | /* For an objfile that has its functions reordered, | |
1922 | find_pc_psymtab will find the proper partial symbol table | |
1923 | and we simply return its corresponding symtab. */ | |
1924 | /* In order to better support objfiles that contain both | |
1925 | stabs and coff debugging info, we continue on if a psymtab | |
1926 | can't be found. */ | |
ccefe4c4 | 1927 | if ((objfile->flags & OBJF_REORDERED) && objfile->sf) |
c5aa993b | 1928 | { |
ccefe4c4 | 1929 | struct symtab *result; |
433759f7 | 1930 | |
ccefe4c4 TT |
1931 | result |
1932 | = objfile->sf->qf->find_pc_sect_symtab (objfile, | |
1933 | msymbol, | |
1934 | pc, section, | |
1935 | 0); | |
1936 | if (result) | |
1937 | return result; | |
c5aa993b JM |
1938 | } |
1939 | if (section != 0) | |
1940 | { | |
de4f826b | 1941 | struct dict_iterator iter; |
261397f8 | 1942 | struct symbol *sym = NULL; |
c906108c | 1943 | |
de4f826b | 1944 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c5aa993b | 1945 | { |
261397f8 | 1946 | fixup_symbol_section (sym, objfile); |
714835d5 | 1947 | if (matching_obj_sections (SYMBOL_OBJ_SECTION (sym), section)) |
c5aa993b JM |
1948 | break; |
1949 | } | |
de4f826b | 1950 | if (sym == NULL) |
c5aa993b JM |
1951 | continue; /* no symbol in this symtab matches section */ |
1952 | } | |
1953 | distance = BLOCK_END (b) - BLOCK_START (b); | |
1954 | best_s = s; | |
1955 | } | |
1956 | } | |
c906108c SS |
1957 | |
1958 | if (best_s != NULL) | |
c5aa993b | 1959 | return (best_s); |
c906108c | 1960 | |
ccefe4c4 TT |
1961 | ALL_OBJFILES (objfile) |
1962 | { | |
1963 | struct symtab *result; | |
433759f7 | 1964 | |
ccefe4c4 TT |
1965 | if (!objfile->sf) |
1966 | continue; | |
1967 | result = objfile->sf->qf->find_pc_sect_symtab (objfile, | |
1968 | msymbol, | |
1969 | pc, section, | |
1970 | 1); | |
1971 | if (result) | |
1972 | return result; | |
1973 | } | |
1974 | ||
1975 | return NULL; | |
c906108c SS |
1976 | } |
1977 | ||
1978 | /* Find the symtab associated with PC. Look through the psymtabs and | |
1979 | read in another symtab if necessary. Backward compatibility, no section */ | |
1980 | ||
1981 | struct symtab * | |
fba45db2 | 1982 | find_pc_symtab (CORE_ADDR pc) |
c906108c SS |
1983 | { |
1984 | return find_pc_sect_symtab (pc, find_pc_mapped_section (pc)); | |
1985 | } | |
c906108c | 1986 | \f |
c5aa993b | 1987 | |
7e73cedf | 1988 | /* Find the source file and line number for a given PC value and SECTION. |
c906108c SS |
1989 | Return a structure containing a symtab pointer, a line number, |
1990 | and a pc range for the entire source line. | |
1991 | The value's .pc field is NOT the specified pc. | |
1992 | NOTCURRENT nonzero means, if specified pc is on a line boundary, | |
1993 | use the line that ends there. Otherwise, in that case, the line | |
1994 | that begins there is used. */ | |
1995 | ||
1996 | /* The big complication here is that a line may start in one file, and end just | |
1997 | before the start of another file. This usually occurs when you #include | |
1998 | code in the middle of a subroutine. To properly find the end of a line's PC | |
1999 | range, we must search all symtabs associated with this compilation unit, and | |
2000 | find the one whose first PC is closer than that of the next line in this | |
2001 | symtab. */ | |
2002 | ||
2003 | /* If it's worth the effort, we could be using a binary search. */ | |
2004 | ||
2005 | struct symtab_and_line | |
714835d5 | 2006 | find_pc_sect_line (CORE_ADDR pc, struct obj_section *section, int notcurrent) |
c906108c SS |
2007 | { |
2008 | struct symtab *s; | |
52f0bd74 AC |
2009 | struct linetable *l; |
2010 | int len; | |
2011 | int i; | |
2012 | struct linetable_entry *item; | |
c906108c SS |
2013 | struct symtab_and_line val; |
2014 | struct blockvector *bv; | |
2015 | struct minimal_symbol *msymbol; | |
2016 | struct minimal_symbol *mfunsym; | |
2017 | ||
2018 | /* Info on best line seen so far, and where it starts, and its file. */ | |
2019 | ||
2020 | struct linetable_entry *best = NULL; | |
2021 | CORE_ADDR best_end = 0; | |
2022 | struct symtab *best_symtab = 0; | |
2023 | ||
2024 | /* Store here the first line number | |
2025 | of a file which contains the line at the smallest pc after PC. | |
2026 | If we don't find a line whose range contains PC, | |
2027 | we will use a line one less than this, | |
2028 | with a range from the start of that file to the first line's pc. */ | |
2029 | struct linetable_entry *alt = NULL; | |
2030 | struct symtab *alt_symtab = 0; | |
2031 | ||
2032 | /* Info on best line seen in this file. */ | |
2033 | ||
2034 | struct linetable_entry *prev; | |
2035 | ||
2036 | /* If this pc is not from the current frame, | |
2037 | it is the address of the end of a call instruction. | |
2038 | Quite likely that is the start of the following statement. | |
2039 | But what we want is the statement containing the instruction. | |
2040 | Fudge the pc to make sure we get that. */ | |
2041 | ||
fe39c653 | 2042 | init_sal (&val); /* initialize to zeroes */ |
c906108c | 2043 | |
6c95b8df PA |
2044 | val.pspace = current_program_space; |
2045 | ||
b77b1eb7 JB |
2046 | /* It's tempting to assume that, if we can't find debugging info for |
2047 | any function enclosing PC, that we shouldn't search for line | |
2048 | number info, either. However, GAS can emit line number info for | |
2049 | assembly files --- very helpful when debugging hand-written | |
2050 | assembly code. In such a case, we'd have no debug info for the | |
2051 | function, but we would have line info. */ | |
648f4f79 | 2052 | |
c906108c SS |
2053 | if (notcurrent) |
2054 | pc -= 1; | |
2055 | ||
c5aa993b | 2056 | /* elz: added this because this function returned the wrong |
c906108c SS |
2057 | information if the pc belongs to a stub (import/export) |
2058 | to call a shlib function. This stub would be anywhere between | |
9af17804 DE |
2059 | two functions in the target, and the line info was erroneously |
2060 | taken to be the one of the line before the pc. | |
c5aa993b | 2061 | */ |
c906108c | 2062 | /* RT: Further explanation: |
c5aa993b | 2063 | |
c906108c SS |
2064 | * We have stubs (trampolines) inserted between procedures. |
2065 | * | |
2066 | * Example: "shr1" exists in a shared library, and a "shr1" stub also | |
2067 | * exists in the main image. | |
2068 | * | |
2069 | * In the minimal symbol table, we have a bunch of symbols | |
2070 | * sorted by start address. The stubs are marked as "trampoline", | |
2071 | * the others appear as text. E.g.: | |
2072 | * | |
9af17804 | 2073 | * Minimal symbol table for main image |
c906108c SS |
2074 | * main: code for main (text symbol) |
2075 | * shr1: stub (trampoline symbol) | |
2076 | * foo: code for foo (text symbol) | |
2077 | * ... | |
2078 | * Minimal symbol table for "shr1" image: | |
2079 | * ... | |
2080 | * shr1: code for shr1 (text symbol) | |
2081 | * ... | |
2082 | * | |
2083 | * So the code below is trying to detect if we are in the stub | |
2084 | * ("shr1" stub), and if so, find the real code ("shr1" trampoline), | |
2085 | * and if found, do the symbolization from the real-code address | |
2086 | * rather than the stub address. | |
2087 | * | |
2088 | * Assumptions being made about the minimal symbol table: | |
2089 | * 1. lookup_minimal_symbol_by_pc() will return a trampoline only | |
2090 | * if we're really in the trampoline. If we're beyond it (say | |
9af17804 | 2091 | * we're in "foo" in the above example), it'll have a closer |
c906108c SS |
2092 | * symbol (the "foo" text symbol for example) and will not |
2093 | * return the trampoline. | |
2094 | * 2. lookup_minimal_symbol_text() will find a real text symbol | |
2095 | * corresponding to the trampoline, and whose address will | |
2096 | * be different than the trampoline address. I put in a sanity | |
2097 | * check for the address being the same, to avoid an | |
2098 | * infinite recursion. | |
2099 | */ | |
c5aa993b JM |
2100 | msymbol = lookup_minimal_symbol_by_pc (pc); |
2101 | if (msymbol != NULL) | |
c906108c | 2102 | if (MSYMBOL_TYPE (msymbol) == mst_solib_trampoline) |
c5aa993b | 2103 | { |
2335f48e | 2104 | mfunsym = lookup_minimal_symbol_text (SYMBOL_LINKAGE_NAME (msymbol), |
5520a790 | 2105 | NULL); |
c5aa993b JM |
2106 | if (mfunsym == NULL) |
2107 | /* I eliminated this warning since it is coming out | |
2108 | * in the following situation: | |
2109 | * gdb shmain // test program with shared libraries | |
2110 | * (gdb) break shr1 // function in shared lib | |
2111 | * Warning: In stub for ... | |
9af17804 | 2112 | * In the above situation, the shared lib is not loaded yet, |
c5aa993b JM |
2113 | * so of course we can't find the real func/line info, |
2114 | * but the "break" still works, and the warning is annoying. | |
2115 | * So I commented out the warning. RT */ | |
2335f48e | 2116 | /* warning ("In stub for %s; unable to find real function/line info", SYMBOL_LINKAGE_NAME (msymbol)) */ ; |
c5aa993b | 2117 | /* fall through */ |
82cf6c60 | 2118 | else if (SYMBOL_VALUE_ADDRESS (mfunsym) == SYMBOL_VALUE_ADDRESS (msymbol)) |
c5aa993b JM |
2119 | /* Avoid infinite recursion */ |
2120 | /* See above comment about why warning is commented out */ | |
2335f48e | 2121 | /* warning ("In stub for %s; unable to find real function/line info", SYMBOL_LINKAGE_NAME (msymbol)) */ ; |
c5aa993b JM |
2122 | /* fall through */ |
2123 | else | |
82cf6c60 | 2124 | return find_pc_line (SYMBOL_VALUE_ADDRESS (mfunsym), 0); |
c5aa993b | 2125 | } |
c906108c SS |
2126 | |
2127 | ||
2128 | s = find_pc_sect_symtab (pc, section); | |
2129 | if (!s) | |
2130 | { | |
2131 | /* if no symbol information, return previous pc */ | |
2132 | if (notcurrent) | |
2133 | pc++; | |
2134 | val.pc = pc; | |
2135 | return val; | |
2136 | } | |
2137 | ||
2138 | bv = BLOCKVECTOR (s); | |
2139 | ||
2140 | /* Look at all the symtabs that share this blockvector. | |
2141 | They all have the same apriori range, that we found was right; | |
2142 | but they have different line tables. */ | |
2143 | ||
2144 | for (; s && BLOCKVECTOR (s) == bv; s = s->next) | |
2145 | { | |
2146 | /* Find the best line in this symtab. */ | |
2147 | l = LINETABLE (s); | |
2148 | if (!l) | |
c5aa993b | 2149 | continue; |
c906108c SS |
2150 | len = l->nitems; |
2151 | if (len <= 0) | |
2152 | { | |
2153 | /* I think len can be zero if the symtab lacks line numbers | |
2154 | (e.g. gcc -g1). (Either that or the LINETABLE is NULL; | |
2155 | I'm not sure which, and maybe it depends on the symbol | |
2156 | reader). */ | |
2157 | continue; | |
2158 | } | |
2159 | ||
2160 | prev = NULL; | |
2161 | item = l->item; /* Get first line info */ | |
2162 | ||
2163 | /* Is this file's first line closer than the first lines of other files? | |
c5aa993b | 2164 | If so, record this file, and its first line, as best alternate. */ |
c906108c SS |
2165 | if (item->pc > pc && (!alt || item->pc < alt->pc)) |
2166 | { | |
2167 | alt = item; | |
2168 | alt_symtab = s; | |
2169 | } | |
2170 | ||
2171 | for (i = 0; i < len; i++, item++) | |
2172 | { | |
2173 | /* Leave prev pointing to the linetable entry for the last line | |
2174 | that started at or before PC. */ | |
2175 | if (item->pc > pc) | |
2176 | break; | |
2177 | ||
2178 | prev = item; | |
2179 | } | |
2180 | ||
2181 | /* At this point, prev points at the line whose start addr is <= pc, and | |
c5aa993b JM |
2182 | item points at the next line. If we ran off the end of the linetable |
2183 | (pc >= start of the last line), then prev == item. If pc < start of | |
2184 | the first line, prev will not be set. */ | |
c906108c SS |
2185 | |
2186 | /* Is this file's best line closer than the best in the other files? | |
083ae935 DJ |
2187 | If so, record this file, and its best line, as best so far. Don't |
2188 | save prev if it represents the end of a function (i.e. line number | |
2189 | 0) instead of a real line. */ | |
c906108c | 2190 | |
083ae935 | 2191 | if (prev && prev->line && (!best || prev->pc > best->pc)) |
c906108c SS |
2192 | { |
2193 | best = prev; | |
2194 | best_symtab = s; | |
25d53da1 KB |
2195 | |
2196 | /* Discard BEST_END if it's before the PC of the current BEST. */ | |
2197 | if (best_end <= best->pc) | |
2198 | best_end = 0; | |
c906108c | 2199 | } |
25d53da1 KB |
2200 | |
2201 | /* If another line (denoted by ITEM) is in the linetable and its | |
2202 | PC is after BEST's PC, but before the current BEST_END, then | |
2203 | use ITEM's PC as the new best_end. */ | |
2204 | if (best && i < len && item->pc > best->pc | |
2205 | && (best_end == 0 || best_end > item->pc)) | |
2206 | best_end = item->pc; | |
c906108c SS |
2207 | } |
2208 | ||
2209 | if (!best_symtab) | |
2210 | { | |
e86e87f7 DJ |
2211 | /* If we didn't find any line number info, just return zeros. |
2212 | We used to return alt->line - 1 here, but that could be | |
2213 | anywhere; if we don't have line number info for this PC, | |
2214 | don't make some up. */ | |
2215 | val.pc = pc; | |
c906108c | 2216 | } |
e8717518 FF |
2217 | else if (best->line == 0) |
2218 | { | |
2219 | /* If our best fit is in a range of PC's for which no line | |
2220 | number info is available (line number is zero) then we didn't | |
2221 | find any valid line information. */ | |
2222 | val.pc = pc; | |
2223 | } | |
c906108c SS |
2224 | else |
2225 | { | |
2226 | val.symtab = best_symtab; | |
2227 | val.line = best->line; | |
2228 | val.pc = best->pc; | |
2229 | if (best_end && (!alt || best_end < alt->pc)) | |
2230 | val.end = best_end; | |
2231 | else if (alt) | |
2232 | val.end = alt->pc; | |
2233 | else | |
2234 | val.end = BLOCK_END (BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK)); | |
2235 | } | |
2236 | val.section = section; | |
2237 | return val; | |
2238 | } | |
2239 | ||
2240 | /* Backward compatibility (no section) */ | |
2241 | ||
2242 | struct symtab_and_line | |
fba45db2 | 2243 | find_pc_line (CORE_ADDR pc, int notcurrent) |
c906108c | 2244 | { |
714835d5 | 2245 | struct obj_section *section; |
c906108c SS |
2246 | |
2247 | section = find_pc_overlay (pc); | |
2248 | if (pc_in_unmapped_range (pc, section)) | |
2249 | pc = overlay_mapped_address (pc, section); | |
2250 | return find_pc_sect_line (pc, section, notcurrent); | |
2251 | } | |
c906108c | 2252 | \f |
c906108c SS |
2253 | /* Find line number LINE in any symtab whose name is the same as |
2254 | SYMTAB. | |
2255 | ||
2256 | If found, return the symtab that contains the linetable in which it was | |
2257 | found, set *INDEX to the index in the linetable of the best entry | |
2258 | found, and set *EXACT_MATCH nonzero if the value returned is an | |
2259 | exact match. | |
2260 | ||
2261 | If not found, return NULL. */ | |
2262 | ||
50641945 | 2263 | struct symtab * |
433759f7 MS |
2264 | find_line_symtab (struct symtab *symtab, int line, |
2265 | int *index, int *exact_match) | |
c906108c | 2266 | { |
6f43c46f | 2267 | int exact = 0; /* Initialized here to avoid a compiler warning. */ |
c906108c SS |
2268 | |
2269 | /* BEST_INDEX and BEST_LINETABLE identify the smallest linenumber > LINE | |
2270 | so far seen. */ | |
2271 | ||
2272 | int best_index; | |
2273 | struct linetable *best_linetable; | |
2274 | struct symtab *best_symtab; | |
2275 | ||
2276 | /* First try looking it up in the given symtab. */ | |
2277 | best_linetable = LINETABLE (symtab); | |
2278 | best_symtab = symtab; | |
2279 | best_index = find_line_common (best_linetable, line, &exact); | |
2280 | if (best_index < 0 || !exact) | |
2281 | { | |
2282 | /* Didn't find an exact match. So we better keep looking for | |
c5aa993b JM |
2283 | another symtab with the same name. In the case of xcoff, |
2284 | multiple csects for one source file (produced by IBM's FORTRAN | |
2285 | compiler) produce multiple symtabs (this is unavoidable | |
2286 | assuming csects can be at arbitrary places in memory and that | |
2287 | the GLOBAL_BLOCK of a symtab has a begin and end address). */ | |
c906108c SS |
2288 | |
2289 | /* BEST is the smallest linenumber > LINE so far seen, | |
c5aa993b JM |
2290 | or 0 if none has been seen so far. |
2291 | BEST_INDEX and BEST_LINETABLE identify the item for it. */ | |
c906108c SS |
2292 | int best; |
2293 | ||
2294 | struct objfile *objfile; | |
2295 | struct symtab *s; | |
2296 | ||
2297 | if (best_index >= 0) | |
2298 | best = best_linetable->item[best_index].line; | |
2299 | else | |
2300 | best = 0; | |
2301 | ||
ccefe4c4 | 2302 | ALL_OBJFILES (objfile) |
51432cca | 2303 | { |
ccefe4c4 TT |
2304 | if (objfile->sf) |
2305 | objfile->sf->qf->expand_symtabs_with_filename (objfile, | |
2306 | symtab->filename); | |
51432cca CES |
2307 | } |
2308 | ||
3ffc00b8 JB |
2309 | /* Get symbol full file name if possible. */ |
2310 | symtab_to_fullname (symtab); | |
2311 | ||
c906108c | 2312 | ALL_SYMTABS (objfile, s) |
c5aa993b JM |
2313 | { |
2314 | struct linetable *l; | |
2315 | int ind; | |
c906108c | 2316 | |
3ffc00b8 | 2317 | if (FILENAME_CMP (symtab->filename, s->filename) != 0) |
c5aa993b | 2318 | continue; |
3ffc00b8 JB |
2319 | if (symtab->fullname != NULL |
2320 | && symtab_to_fullname (s) != NULL | |
2321 | && FILENAME_CMP (symtab->fullname, s->fullname) != 0) | |
2322 | continue; | |
c5aa993b JM |
2323 | l = LINETABLE (s); |
2324 | ind = find_line_common (l, line, &exact); | |
2325 | if (ind >= 0) | |
2326 | { | |
2327 | if (exact) | |
2328 | { | |
2329 | best_index = ind; | |
2330 | best_linetable = l; | |
2331 | best_symtab = s; | |
2332 | goto done; | |
2333 | } | |
2334 | if (best == 0 || l->item[ind].line < best) | |
2335 | { | |
2336 | best = l->item[ind].line; | |
2337 | best_index = ind; | |
2338 | best_linetable = l; | |
2339 | best_symtab = s; | |
2340 | } | |
2341 | } | |
2342 | } | |
c906108c | 2343 | } |
c5aa993b | 2344 | done: |
c906108c SS |
2345 | if (best_index < 0) |
2346 | return NULL; | |
2347 | ||
2348 | if (index) | |
2349 | *index = best_index; | |
2350 | if (exact_match) | |
2351 | *exact_match = exact; | |
2352 | ||
2353 | return best_symtab; | |
2354 | } | |
2355 | \f | |
2356 | /* Set the PC value for a given source file and line number and return true. | |
2357 | Returns zero for invalid line number (and sets the PC to 0). | |
2358 | The source file is specified with a struct symtab. */ | |
2359 | ||
2360 | int | |
fba45db2 | 2361 | find_line_pc (struct symtab *symtab, int line, CORE_ADDR *pc) |
c906108c SS |
2362 | { |
2363 | struct linetable *l; | |
2364 | int ind; | |
2365 | ||
2366 | *pc = 0; | |
2367 | if (symtab == 0) | |
2368 | return 0; | |
2369 | ||
2370 | symtab = find_line_symtab (symtab, line, &ind, NULL); | |
2371 | if (symtab != NULL) | |
2372 | { | |
2373 | l = LINETABLE (symtab); | |
2374 | *pc = l->item[ind].pc; | |
2375 | return 1; | |
2376 | } | |
2377 | else | |
2378 | return 0; | |
2379 | } | |
2380 | ||
2381 | /* Find the range of pc values in a line. | |
2382 | Store the starting pc of the line into *STARTPTR | |
2383 | and the ending pc (start of next line) into *ENDPTR. | |
2384 | Returns 1 to indicate success. | |
2385 | Returns 0 if could not find the specified line. */ | |
2386 | ||
2387 | int | |
fba45db2 KB |
2388 | find_line_pc_range (struct symtab_and_line sal, CORE_ADDR *startptr, |
2389 | CORE_ADDR *endptr) | |
c906108c SS |
2390 | { |
2391 | CORE_ADDR startaddr; | |
2392 | struct symtab_and_line found_sal; | |
2393 | ||
2394 | startaddr = sal.pc; | |
c5aa993b | 2395 | if (startaddr == 0 && !find_line_pc (sal.symtab, sal.line, &startaddr)) |
c906108c SS |
2396 | return 0; |
2397 | ||
2398 | /* This whole function is based on address. For example, if line 10 has | |
2399 | two parts, one from 0x100 to 0x200 and one from 0x300 to 0x400, then | |
2400 | "info line *0x123" should say the line goes from 0x100 to 0x200 | |
2401 | and "info line *0x355" should say the line goes from 0x300 to 0x400. | |
2402 | This also insures that we never give a range like "starts at 0x134 | |
2403 | and ends at 0x12c". */ | |
2404 | ||
2405 | found_sal = find_pc_sect_line (startaddr, sal.section, 0); | |
2406 | if (found_sal.line != sal.line) | |
2407 | { | |
2408 | /* The specified line (sal) has zero bytes. */ | |
2409 | *startptr = found_sal.pc; | |
2410 | *endptr = found_sal.pc; | |
2411 | } | |
2412 | else | |
2413 | { | |
2414 | *startptr = found_sal.pc; | |
2415 | *endptr = found_sal.end; | |
2416 | } | |
2417 | return 1; | |
2418 | } | |
2419 | ||
2420 | /* Given a line table and a line number, return the index into the line | |
2421 | table for the pc of the nearest line whose number is >= the specified one. | |
2422 | Return -1 if none is found. The value is >= 0 if it is an index. | |
2423 | ||
2424 | Set *EXACT_MATCH nonzero if the value returned is an exact match. */ | |
2425 | ||
2426 | static int | |
aa1ee363 | 2427 | find_line_common (struct linetable *l, int lineno, |
fba45db2 | 2428 | int *exact_match) |
c906108c | 2429 | { |
52f0bd74 AC |
2430 | int i; |
2431 | int len; | |
c906108c SS |
2432 | |
2433 | /* BEST is the smallest linenumber > LINENO so far seen, | |
2434 | or 0 if none has been seen so far. | |
2435 | BEST_INDEX identifies the item for it. */ | |
2436 | ||
2437 | int best_index = -1; | |
2438 | int best = 0; | |
2439 | ||
b7589f7d DJ |
2440 | *exact_match = 0; |
2441 | ||
c906108c SS |
2442 | if (lineno <= 0) |
2443 | return -1; | |
2444 | if (l == 0) | |
2445 | return -1; | |
2446 | ||
2447 | len = l->nitems; | |
2448 | for (i = 0; i < len; i++) | |
2449 | { | |
aa1ee363 | 2450 | struct linetable_entry *item = &(l->item[i]); |
c906108c SS |
2451 | |
2452 | if (item->line == lineno) | |
2453 | { | |
2454 | /* Return the first (lowest address) entry which matches. */ | |
2455 | *exact_match = 1; | |
2456 | return i; | |
2457 | } | |
2458 | ||
2459 | if (item->line > lineno && (best == 0 || item->line < best)) | |
2460 | { | |
2461 | best = item->line; | |
2462 | best_index = i; | |
2463 | } | |
2464 | } | |
2465 | ||
2466 | /* If we got here, we didn't get an exact match. */ | |
c906108c SS |
2467 | return best_index; |
2468 | } | |
2469 | ||
2470 | int | |
fba45db2 | 2471 | find_pc_line_pc_range (CORE_ADDR pc, CORE_ADDR *startptr, CORE_ADDR *endptr) |
c906108c SS |
2472 | { |
2473 | struct symtab_and_line sal; | |
433759f7 | 2474 | |
c906108c SS |
2475 | sal = find_pc_line (pc, 0); |
2476 | *startptr = sal.pc; | |
2477 | *endptr = sal.end; | |
2478 | return sal.symtab != 0; | |
2479 | } | |
2480 | ||
8c7a1ee8 EZ |
2481 | /* Given a function start address FUNC_ADDR and SYMTAB, find the first |
2482 | address for that function that has an entry in SYMTAB's line info | |
2483 | table. If such an entry cannot be found, return FUNC_ADDR | |
2484 | unaltered. */ | |
2485 | CORE_ADDR | |
2486 | skip_prologue_using_lineinfo (CORE_ADDR func_addr, struct symtab *symtab) | |
2487 | { | |
2488 | CORE_ADDR func_start, func_end; | |
2489 | struct linetable *l; | |
952a6d41 | 2490 | int i; |
8c7a1ee8 EZ |
2491 | |
2492 | /* Give up if this symbol has no lineinfo table. */ | |
2493 | l = LINETABLE (symtab); | |
2494 | if (l == NULL) | |
2495 | return func_addr; | |
2496 | ||
2497 | /* Get the range for the function's PC values, or give up if we | |
2498 | cannot, for some reason. */ | |
2499 | if (!find_pc_partial_function (func_addr, NULL, &func_start, &func_end)) | |
2500 | return func_addr; | |
2501 | ||
2502 | /* Linetable entries are ordered by PC values, see the commentary in | |
2503 | symtab.h where `struct linetable' is defined. Thus, the first | |
2504 | entry whose PC is in the range [FUNC_START..FUNC_END[ is the | |
2505 | address we are looking for. */ | |
2506 | for (i = 0; i < l->nitems; i++) | |
2507 | { | |
2508 | struct linetable_entry *item = &(l->item[i]); | |
2509 | ||
2510 | /* Don't use line numbers of zero, they mark special entries in | |
2511 | the table. See the commentary on symtab.h before the | |
2512 | definition of struct linetable. */ | |
2513 | if (item->line > 0 && func_start <= item->pc && item->pc < func_end) | |
2514 | return item->pc; | |
2515 | } | |
2516 | ||
2517 | return func_addr; | |
2518 | } | |
2519 | ||
c906108c SS |
2520 | /* Given a function symbol SYM, find the symtab and line for the start |
2521 | of the function. | |
2522 | If the argument FUNFIRSTLINE is nonzero, we want the first line | |
2523 | of real code inside the function. */ | |
2524 | ||
50641945 | 2525 | struct symtab_and_line |
fba45db2 | 2526 | find_function_start_sal (struct symbol *sym, int funfirstline) |
c906108c | 2527 | { |
059acae7 UW |
2528 | struct symtab_and_line sal; |
2529 | ||
2530 | fixup_symbol_section (sym, NULL); | |
2531 | sal = find_pc_sect_line (BLOCK_START (SYMBOL_BLOCK_VALUE (sym)), | |
2532 | SYMBOL_OBJ_SECTION (sym), 0); | |
2533 | ||
86da934b UW |
2534 | /* We always should have a line for the function start address. |
2535 | If we don't, something is odd. Create a plain SAL refering | |
2536 | just the PC and hope that skip_prologue_sal (if requested) | |
2537 | can find a line number for after the prologue. */ | |
2538 | if (sal.pc < BLOCK_START (SYMBOL_BLOCK_VALUE (sym))) | |
2539 | { | |
2540 | init_sal (&sal); | |
2541 | sal.pspace = current_program_space; | |
2542 | sal.pc = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); | |
2543 | sal.section = SYMBOL_OBJ_SECTION (sym); | |
2544 | } | |
2545 | ||
059acae7 UW |
2546 | if (funfirstline) |
2547 | skip_prologue_sal (&sal); | |
bccdca4a | 2548 | |
059acae7 UW |
2549 | return sal; |
2550 | } | |
2551 | ||
2552 | /* Adjust SAL to the first instruction past the function prologue. | |
2553 | If the PC was explicitly specified, the SAL is not changed. | |
2554 | If the line number was explicitly specified, at most the SAL's PC | |
2555 | is updated. If SAL is already past the prologue, then do nothing. */ | |
2556 | void | |
2557 | skip_prologue_sal (struct symtab_and_line *sal) | |
2558 | { | |
2559 | struct symbol *sym; | |
2560 | struct symtab_and_line start_sal; | |
2561 | struct cleanup *old_chain; | |
c906108c | 2562 | CORE_ADDR pc; |
059acae7 UW |
2563 | struct obj_section *section; |
2564 | const char *name; | |
2565 | struct objfile *objfile; | |
2566 | struct gdbarch *gdbarch; | |
edb3359d | 2567 | struct block *b, *function_block; |
c906108c | 2568 | |
059acae7 UW |
2569 | /* Do not change the SAL is PC was specified explicitly. */ |
2570 | if (sal->explicit_pc) | |
2571 | return; | |
6c95b8df PA |
2572 | |
2573 | old_chain = save_current_space_and_thread (); | |
059acae7 | 2574 | switch_to_program_space_and_thread (sal->pspace); |
6c95b8df | 2575 | |
059acae7 UW |
2576 | sym = find_pc_sect_function (sal->pc, sal->section); |
2577 | if (sym != NULL) | |
bccdca4a | 2578 | { |
059acae7 UW |
2579 | fixup_symbol_section (sym, NULL); |
2580 | ||
2581 | pc = BLOCK_START (SYMBOL_BLOCK_VALUE (sym)); | |
2582 | section = SYMBOL_OBJ_SECTION (sym); | |
2583 | name = SYMBOL_LINKAGE_NAME (sym); | |
2584 | objfile = SYMBOL_SYMTAB (sym)->objfile; | |
c906108c | 2585 | } |
059acae7 UW |
2586 | else |
2587 | { | |
2588 | struct minimal_symbol *msymbol | |
2589 | = lookup_minimal_symbol_by_pc_section (sal->pc, sal->section); | |
433759f7 | 2590 | |
059acae7 UW |
2591 | if (msymbol == NULL) |
2592 | { | |
2593 | do_cleanups (old_chain); | |
2594 | return; | |
2595 | } | |
2596 | ||
2597 | pc = SYMBOL_VALUE_ADDRESS (msymbol); | |
2598 | section = SYMBOL_OBJ_SECTION (msymbol); | |
2599 | name = SYMBOL_LINKAGE_NAME (msymbol); | |
2600 | objfile = msymbol_objfile (msymbol); | |
2601 | } | |
2602 | ||
2603 | gdbarch = get_objfile_arch (objfile); | |
2604 | ||
2605 | /* If the function is in an unmapped overlay, use its unmapped LMA address, | |
2606 | so that gdbarch_skip_prologue has something unique to work on. */ | |
2607 | if (section_is_overlay (section) && !section_is_mapped (section)) | |
2608 | pc = overlay_unmapped_address (pc, section); | |
2609 | ||
2610 | /* Skip "first line" of function (which is actually its prologue). */ | |
2611 | pc += gdbarch_deprecated_function_start_offset (gdbarch); | |
2612 | pc = gdbarch_skip_prologue (gdbarch, pc); | |
2613 | ||
2614 | /* For overlays, map pc back into its mapped VMA range. */ | |
2615 | pc = overlay_mapped_address (pc, section); | |
2616 | ||
2617 | /* Calculate line number. */ | |
2618 | start_sal = find_pc_sect_line (pc, section, 0); | |
c906108c | 2619 | |
a433963d | 2620 | /* Check if gdbarch_skip_prologue left us in mid-line, and the next |
c906108c | 2621 | line is still part of the same function. */ |
059acae7 UW |
2622 | if (start_sal.pc != pc |
2623 | && (sym? (BLOCK_START (SYMBOL_BLOCK_VALUE (sym)) <= start_sal.end | |
2624 | && start_sal.end < BLOCK_END (SYMBOL_BLOCK_VALUE (sym))) | |
2625 | : (lookup_minimal_symbol_by_pc_section (start_sal.end, section) | |
2626 | == lookup_minimal_symbol_by_pc_section (pc, section)))) | |
c906108c SS |
2627 | { |
2628 | /* First pc of next line */ | |
059acae7 | 2629 | pc = start_sal.end; |
c906108c | 2630 | /* Recalculate the line number (might not be N+1). */ |
059acae7 | 2631 | start_sal = find_pc_sect_line (pc, section, 0); |
c906108c | 2632 | } |
4309257c PM |
2633 | |
2634 | /* On targets with executable formats that don't have a concept of | |
2635 | constructors (ELF with .init has, PE doesn't), gcc emits a call | |
2636 | to `__main' in `main' between the prologue and before user | |
2637 | code. */ | |
059acae7 UW |
2638 | if (gdbarch_skip_main_prologue_p (gdbarch) |
2639 | && name && strcmp (name, "main") == 0) | |
4309257c | 2640 | { |
d80b854b | 2641 | pc = gdbarch_skip_main_prologue (gdbarch, pc); |
4309257c | 2642 | /* Recalculate the line number (might not be N+1). */ |
059acae7 | 2643 | start_sal = find_pc_sect_line (pc, section, 0); |
4309257c PM |
2644 | } |
2645 | ||
8c7a1ee8 EZ |
2646 | /* If we still don't have a valid source line, try to find the first |
2647 | PC in the lineinfo table that belongs to the same function. This | |
2648 | happens with COFF debug info, which does not seem to have an | |
2649 | entry in lineinfo table for the code after the prologue which has | |
2650 | no direct relation to source. For example, this was found to be | |
2651 | the case with the DJGPP target using "gcc -gcoff" when the | |
2652 | compiler inserted code after the prologue to make sure the stack | |
2653 | is aligned. */ | |
059acae7 | 2654 | if (sym && start_sal.symtab == NULL) |
8c7a1ee8 EZ |
2655 | { |
2656 | pc = skip_prologue_using_lineinfo (pc, SYMBOL_SYMTAB (sym)); | |
2657 | /* Recalculate the line number. */ | |
059acae7 | 2658 | start_sal = find_pc_sect_line (pc, section, 0); |
8c7a1ee8 EZ |
2659 | } |
2660 | ||
059acae7 UW |
2661 | do_cleanups (old_chain); |
2662 | ||
2663 | /* If we're already past the prologue, leave SAL unchanged. Otherwise | |
2664 | forward SAL to the end of the prologue. */ | |
2665 | if (sal->pc >= pc) | |
2666 | return; | |
2667 | ||
2668 | sal->pc = pc; | |
2669 | sal->section = section; | |
2670 | ||
2671 | /* Unless the explicit_line flag was set, update the SAL line | |
2672 | and symtab to correspond to the modified PC location. */ | |
2673 | if (sal->explicit_line) | |
2674 | return; | |
2675 | ||
2676 | sal->symtab = start_sal.symtab; | |
2677 | sal->line = start_sal.line; | |
2678 | sal->end = start_sal.end; | |
c906108c | 2679 | |
edb3359d DJ |
2680 | /* Check if we are now inside an inlined function. If we can, |
2681 | use the call site of the function instead. */ | |
059acae7 | 2682 | b = block_for_pc_sect (sal->pc, sal->section); |
edb3359d DJ |
2683 | function_block = NULL; |
2684 | while (b != NULL) | |
2685 | { | |
2686 | if (BLOCK_FUNCTION (b) != NULL && block_inlined_p (b)) | |
2687 | function_block = b; | |
2688 | else if (BLOCK_FUNCTION (b) != NULL) | |
2689 | break; | |
2690 | b = BLOCK_SUPERBLOCK (b); | |
2691 | } | |
2692 | if (function_block != NULL | |
2693 | && SYMBOL_LINE (BLOCK_FUNCTION (function_block)) != 0) | |
2694 | { | |
059acae7 UW |
2695 | sal->line = SYMBOL_LINE (BLOCK_FUNCTION (function_block)); |
2696 | sal->symtab = SYMBOL_SYMTAB (BLOCK_FUNCTION (function_block)); | |
edb3359d | 2697 | } |
c906108c | 2698 | } |
50641945 | 2699 | |
c906108c SS |
2700 | /* If P is of the form "operator[ \t]+..." where `...' is |
2701 | some legitimate operator text, return a pointer to the | |
2702 | beginning of the substring of the operator text. | |
2703 | Otherwise, return "". */ | |
2704 | char * | |
fba45db2 | 2705 | operator_chars (char *p, char **end) |
c906108c SS |
2706 | { |
2707 | *end = ""; | |
2708 | if (strncmp (p, "operator", 8)) | |
2709 | return *end; | |
2710 | p += 8; | |
2711 | ||
2712 | /* Don't get faked out by `operator' being part of a longer | |
2713 | identifier. */ | |
c5aa993b | 2714 | if (isalpha (*p) || *p == '_' || *p == '$' || *p == '\0') |
c906108c SS |
2715 | return *end; |
2716 | ||
2717 | /* Allow some whitespace between `operator' and the operator symbol. */ | |
2718 | while (*p == ' ' || *p == '\t') | |
2719 | p++; | |
2720 | ||
2721 | /* Recognize 'operator TYPENAME'. */ | |
2722 | ||
c5aa993b | 2723 | if (isalpha (*p) || *p == '_' || *p == '$') |
c906108c | 2724 | { |
aa1ee363 | 2725 | char *q = p + 1; |
433759f7 | 2726 | |
c5aa993b | 2727 | while (isalnum (*q) || *q == '_' || *q == '$') |
c906108c SS |
2728 | q++; |
2729 | *end = q; | |
2730 | return p; | |
2731 | } | |
2732 | ||
53e8ad3d MS |
2733 | while (*p) |
2734 | switch (*p) | |
2735 | { | |
2736 | case '\\': /* regexp quoting */ | |
2737 | if (p[1] == '*') | |
2738 | { | |
2739 | if (p[2] == '=') /* 'operator\*=' */ | |
2740 | *end = p + 3; | |
2741 | else /* 'operator\*' */ | |
2742 | *end = p + 2; | |
2743 | return p; | |
2744 | } | |
2745 | else if (p[1] == '[') | |
2746 | { | |
2747 | if (p[2] == ']') | |
8a3fe4f8 | 2748 | error (_("mismatched quoting on brackets, try 'operator\\[\\]'")); |
53e8ad3d MS |
2749 | else if (p[2] == '\\' && p[3] == ']') |
2750 | { | |
2751 | *end = p + 4; /* 'operator\[\]' */ | |
2752 | return p; | |
2753 | } | |
2754 | else | |
8a3fe4f8 | 2755 | error (_("nothing is allowed between '[' and ']'")); |
53e8ad3d | 2756 | } |
9af17804 | 2757 | else |
53e8ad3d MS |
2758 | { |
2759 | /* Gratuitous qoute: skip it and move on. */ | |
2760 | p++; | |
2761 | continue; | |
2762 | } | |
2763 | break; | |
2764 | case '!': | |
2765 | case '=': | |
2766 | case '*': | |
2767 | case '/': | |
2768 | case '%': | |
2769 | case '^': | |
2770 | if (p[1] == '=') | |
2771 | *end = p + 2; | |
2772 | else | |
2773 | *end = p + 1; | |
2774 | return p; | |
2775 | case '<': | |
2776 | case '>': | |
2777 | case '+': | |
2778 | case '-': | |
2779 | case '&': | |
2780 | case '|': | |
2781 | if (p[0] == '-' && p[1] == '>') | |
2782 | { | |
2783 | /* Struct pointer member operator 'operator->'. */ | |
2784 | if (p[2] == '*') | |
2785 | { | |
2786 | *end = p + 3; /* 'operator->*' */ | |
2787 | return p; | |
2788 | } | |
2789 | else if (p[2] == '\\') | |
2790 | { | |
2791 | *end = p + 4; /* Hopefully 'operator->\*' */ | |
2792 | return p; | |
2793 | } | |
2794 | else | |
2795 | { | |
2796 | *end = p + 2; /* 'operator->' */ | |
2797 | return p; | |
2798 | } | |
2799 | } | |
2800 | if (p[1] == '=' || p[1] == p[0]) | |
2801 | *end = p + 2; | |
2802 | else | |
2803 | *end = p + 1; | |
2804 | return p; | |
2805 | case '~': | |
2806 | case ',': | |
c5aa993b | 2807 | *end = p + 1; |
53e8ad3d MS |
2808 | return p; |
2809 | case '(': | |
2810 | if (p[1] != ')') | |
8a3fe4f8 | 2811 | error (_("`operator ()' must be specified without whitespace in `()'")); |
c5aa993b | 2812 | *end = p + 2; |
53e8ad3d MS |
2813 | return p; |
2814 | case '?': | |
2815 | if (p[1] != ':') | |
8a3fe4f8 | 2816 | error (_("`operator ?:' must be specified without whitespace in `?:'")); |
53e8ad3d MS |
2817 | *end = p + 2; |
2818 | return p; | |
2819 | case '[': | |
2820 | if (p[1] != ']') | |
8a3fe4f8 | 2821 | error (_("`operator []' must be specified without whitespace in `[]'")); |
53e8ad3d MS |
2822 | *end = p + 2; |
2823 | return p; | |
2824 | default: | |
8a3fe4f8 | 2825 | error (_("`operator %s' not supported"), p); |
53e8ad3d MS |
2826 | break; |
2827 | } | |
2828 | ||
c906108c SS |
2829 | *end = ""; |
2830 | return *end; | |
2831 | } | |
c906108c | 2832 | \f |
c5aa993b | 2833 | |
c94fdfd0 EZ |
2834 | /* If FILE is not already in the table of files, return zero; |
2835 | otherwise return non-zero. Optionally add FILE to the table if ADD | |
2836 | is non-zero. If *FIRST is non-zero, forget the old table | |
2837 | contents. */ | |
2838 | static int | |
2839 | filename_seen (const char *file, int add, int *first) | |
c906108c | 2840 | { |
c94fdfd0 EZ |
2841 | /* Table of files seen so far. */ |
2842 | static const char **tab = NULL; | |
c906108c SS |
2843 | /* Allocated size of tab in elements. |
2844 | Start with one 256-byte block (when using GNU malloc.c). | |
2845 | 24 is the malloc overhead when range checking is in effect. */ | |
2846 | static int tab_alloc_size = (256 - 24) / sizeof (char *); | |
2847 | /* Current size of tab in elements. */ | |
2848 | static int tab_cur_size; | |
c94fdfd0 | 2849 | const char **p; |
c906108c SS |
2850 | |
2851 | if (*first) | |
2852 | { | |
2853 | if (tab == NULL) | |
c94fdfd0 | 2854 | tab = (const char **) xmalloc (tab_alloc_size * sizeof (*tab)); |
c906108c SS |
2855 | tab_cur_size = 0; |
2856 | } | |
2857 | ||
c94fdfd0 | 2858 | /* Is FILE in tab? */ |
c906108c | 2859 | for (p = tab; p < tab + tab_cur_size; p++) |
c94fdfd0 EZ |
2860 | if (strcmp (*p, file) == 0) |
2861 | return 1; | |
2862 | ||
2863 | /* No; maybe add it to tab. */ | |
2864 | if (add) | |
c906108c | 2865 | { |
c94fdfd0 EZ |
2866 | if (tab_cur_size == tab_alloc_size) |
2867 | { | |
2868 | tab_alloc_size *= 2; | |
2869 | tab = (const char **) xrealloc ((char *) tab, | |
2870 | tab_alloc_size * sizeof (*tab)); | |
2871 | } | |
2872 | tab[tab_cur_size++] = file; | |
c906108c | 2873 | } |
c906108c | 2874 | |
c94fdfd0 EZ |
2875 | return 0; |
2876 | } | |
2877 | ||
2878 | /* Slave routine for sources_info. Force line breaks at ,'s. | |
2879 | NAME is the name to print and *FIRST is nonzero if this is the first | |
2880 | name printed. Set *FIRST to zero. */ | |
2881 | static void | |
d092d1a2 | 2882 | output_source_filename (const char *name, int *first) |
c94fdfd0 EZ |
2883 | { |
2884 | /* Since a single source file can result in several partial symbol | |
2885 | tables, we need to avoid printing it more than once. Note: if | |
2886 | some of the psymtabs are read in and some are not, it gets | |
2887 | printed both under "Source files for which symbols have been | |
2888 | read" and "Source files for which symbols will be read in on | |
2889 | demand". I consider this a reasonable way to deal with the | |
2890 | situation. I'm not sure whether this can also happen for | |
2891 | symtabs; it doesn't hurt to check. */ | |
2892 | ||
2893 | /* Was NAME already seen? */ | |
2894 | if (filename_seen (name, 1, first)) | |
2895 | { | |
2896 | /* Yes; don't print it again. */ | |
2897 | return; | |
2898 | } | |
2899 | /* No; print it and reset *FIRST. */ | |
c906108c SS |
2900 | if (*first) |
2901 | { | |
2902 | *first = 0; | |
2903 | } | |
2904 | else | |
2905 | { | |
2906 | printf_filtered (", "); | |
2907 | } | |
2908 | ||
2909 | wrap_here (""); | |
2910 | fputs_filtered (name, gdb_stdout); | |
c5aa993b | 2911 | } |
c906108c | 2912 | |
ccefe4c4 TT |
2913 | /* A callback for map_partial_symbol_filenames. */ |
2914 | static void | |
2915 | output_partial_symbol_filename (const char *fullname, const char *filename, | |
2916 | void *data) | |
2917 | { | |
2918 | output_source_filename (fullname ? fullname : filename, data); | |
2919 | } | |
2920 | ||
c906108c | 2921 | static void |
fba45db2 | 2922 | sources_info (char *ignore, int from_tty) |
c906108c | 2923 | { |
52f0bd74 | 2924 | struct symtab *s; |
52f0bd74 | 2925 | struct objfile *objfile; |
c906108c | 2926 | int first; |
c5aa993b | 2927 | |
c906108c SS |
2928 | if (!have_full_symbols () && !have_partial_symbols ()) |
2929 | { | |
8a3fe4f8 | 2930 | error (_("No symbol table is loaded. Use the \"file\" command.")); |
c906108c | 2931 | } |
c5aa993b | 2932 | |
c906108c SS |
2933 | printf_filtered ("Source files for which symbols have been read in:\n\n"); |
2934 | ||
2935 | first = 1; | |
2936 | ALL_SYMTABS (objfile, s) | |
c5aa993b | 2937 | { |
d092d1a2 | 2938 | const char *fullname = symtab_to_fullname (s); |
433759f7 | 2939 | |
d092d1a2 | 2940 | output_source_filename (fullname ? fullname : s->filename, &first); |
c5aa993b | 2941 | } |
c906108c | 2942 | printf_filtered ("\n\n"); |
c5aa993b | 2943 | |
c906108c SS |
2944 | printf_filtered ("Source files for which symbols will be read in on demand:\n\n"); |
2945 | ||
2946 | first = 1; | |
ccefe4c4 | 2947 | map_partial_symbol_filenames (output_partial_symbol_filename, &first); |
c906108c SS |
2948 | printf_filtered ("\n"); |
2949 | } | |
2950 | ||
2951 | static int | |
ccefe4c4 | 2952 | file_matches (const char *file, char *files[], int nfiles) |
c906108c SS |
2953 | { |
2954 | int i; | |
2955 | ||
2956 | if (file != NULL && nfiles != 0) | |
2957 | { | |
2958 | for (i = 0; i < nfiles; i++) | |
c5aa993b | 2959 | { |
31889e00 | 2960 | if (strcmp (files[i], lbasename (file)) == 0) |
c5aa993b JM |
2961 | return 1; |
2962 | } | |
c906108c SS |
2963 | } |
2964 | else if (nfiles == 0) | |
2965 | return 1; | |
2966 | return 0; | |
2967 | } | |
2968 | ||
2969 | /* Free any memory associated with a search. */ | |
2970 | void | |
fba45db2 | 2971 | free_search_symbols (struct symbol_search *symbols) |
c906108c SS |
2972 | { |
2973 | struct symbol_search *p; | |
2974 | struct symbol_search *next; | |
2975 | ||
2976 | for (p = symbols; p != NULL; p = next) | |
2977 | { | |
2978 | next = p->next; | |
b8c9b27d | 2979 | xfree (p); |
c906108c SS |
2980 | } |
2981 | } | |
2982 | ||
5bd98722 AC |
2983 | static void |
2984 | do_free_search_symbols_cleanup (void *symbols) | |
2985 | { | |
2986 | free_search_symbols (symbols); | |
2987 | } | |
2988 | ||
2989 | struct cleanup * | |
2990 | make_cleanup_free_search_symbols (struct symbol_search *symbols) | |
2991 | { | |
2992 | return make_cleanup (do_free_search_symbols_cleanup, symbols); | |
2993 | } | |
2994 | ||
434d2d4f DJ |
2995 | /* Helper function for sort_search_symbols and qsort. Can only |
2996 | sort symbols, not minimal symbols. */ | |
2997 | static int | |
2998 | compare_search_syms (const void *sa, const void *sb) | |
2999 | { | |
3000 | struct symbol_search **sym_a = (struct symbol_search **) sa; | |
3001 | struct symbol_search **sym_b = (struct symbol_search **) sb; | |
3002 | ||
de5ad195 DC |
3003 | return strcmp (SYMBOL_PRINT_NAME ((*sym_a)->symbol), |
3004 | SYMBOL_PRINT_NAME ((*sym_b)->symbol)); | |
434d2d4f DJ |
3005 | } |
3006 | ||
3007 | /* Sort the ``nfound'' symbols in the list after prevtail. Leave | |
3008 | prevtail where it is, but update its next pointer to point to | |
3009 | the first of the sorted symbols. */ | |
3010 | static struct symbol_search * | |
3011 | sort_search_symbols (struct symbol_search *prevtail, int nfound) | |
3012 | { | |
3013 | struct symbol_search **symbols, *symp, *old_next; | |
3014 | int i; | |
3015 | ||
3016 | symbols = (struct symbol_search **) xmalloc (sizeof (struct symbol_search *) | |
3017 | * nfound); | |
3018 | symp = prevtail->next; | |
3019 | for (i = 0; i < nfound; i++) | |
3020 | { | |
3021 | symbols[i] = symp; | |
3022 | symp = symp->next; | |
3023 | } | |
3024 | /* Generally NULL. */ | |
3025 | old_next = symp; | |
3026 | ||
3027 | qsort (symbols, nfound, sizeof (struct symbol_search *), | |
3028 | compare_search_syms); | |
3029 | ||
3030 | symp = prevtail; | |
3031 | for (i = 0; i < nfound; i++) | |
3032 | { | |
3033 | symp->next = symbols[i]; | |
3034 | symp = symp->next; | |
3035 | } | |
3036 | symp->next = old_next; | |
3037 | ||
8ed32cc0 | 3038 | xfree (symbols); |
434d2d4f DJ |
3039 | return symp; |
3040 | } | |
5bd98722 | 3041 | |
ccefe4c4 TT |
3042 | /* An object of this type is passed as the user_data to the |
3043 | expand_symtabs_matching method. */ | |
3044 | struct search_symbols_data | |
3045 | { | |
3046 | int nfiles; | |
3047 | char **files; | |
3048 | char *regexp; | |
3049 | }; | |
3050 | ||
3051 | /* A callback for expand_symtabs_matching. */ | |
3052 | static int | |
3053 | search_symbols_file_matches (const char *filename, void *user_data) | |
3054 | { | |
3055 | struct search_symbols_data *data = user_data; | |
433759f7 | 3056 | |
ccefe4c4 TT |
3057 | return file_matches (filename, data->files, data->nfiles); |
3058 | } | |
3059 | ||
3060 | /* A callback for expand_symtabs_matching. */ | |
3061 | static int | |
3062 | search_symbols_name_matches (const char *symname, void *user_data) | |
3063 | { | |
3064 | struct search_symbols_data *data = user_data; | |
433759f7 | 3065 | |
ccefe4c4 TT |
3066 | return data->regexp == NULL || re_exec (symname); |
3067 | } | |
3068 | ||
c906108c SS |
3069 | /* Search the symbol table for matches to the regular expression REGEXP, |
3070 | returning the results in *MATCHES. | |
3071 | ||
3072 | Only symbols of KIND are searched: | |
176620f1 EZ |
3073 | FUNCTIONS_DOMAIN - search all functions |
3074 | TYPES_DOMAIN - search all type names | |
176620f1 | 3075 | VARIABLES_DOMAIN - search all symbols, excluding functions, type names, |
c5aa993b | 3076 | and constants (enums) |
c906108c SS |
3077 | |
3078 | free_search_symbols should be called when *MATCHES is no longer needed. | |
434d2d4f DJ |
3079 | |
3080 | The results are sorted locally; each symtab's global and static blocks are | |
3081 | separately alphabetized. | |
c5aa993b | 3082 | */ |
c906108c | 3083 | void |
176620f1 | 3084 | search_symbols (char *regexp, domain_enum kind, int nfiles, char *files[], |
fd118b61 | 3085 | struct symbol_search **matches) |
c906108c | 3086 | { |
52f0bd74 | 3087 | struct symtab *s; |
52f0bd74 | 3088 | struct blockvector *bv; |
52f0bd74 AC |
3089 | struct block *b; |
3090 | int i = 0; | |
de4f826b | 3091 | struct dict_iterator iter; |
52f0bd74 | 3092 | struct symbol *sym; |
c906108c SS |
3093 | struct objfile *objfile; |
3094 | struct minimal_symbol *msymbol; | |
3095 | char *val; | |
3096 | int found_misc = 0; | |
bc043ef3 | 3097 | static const enum minimal_symbol_type types[] |
433759f7 | 3098 | = {mst_data, mst_text, mst_abs, mst_unknown}; |
bc043ef3 | 3099 | static const enum minimal_symbol_type types2[] |
433759f7 | 3100 | = {mst_bss, mst_file_text, mst_abs, mst_unknown}; |
bc043ef3 | 3101 | static const enum minimal_symbol_type types3[] |
433759f7 | 3102 | = {mst_file_data, mst_solib_trampoline, mst_abs, mst_unknown}; |
bc043ef3 | 3103 | static const enum minimal_symbol_type types4[] |
433759f7 | 3104 | = {mst_file_bss, mst_text, mst_abs, mst_unknown}; |
c906108c SS |
3105 | enum minimal_symbol_type ourtype; |
3106 | enum minimal_symbol_type ourtype2; | |
3107 | enum minimal_symbol_type ourtype3; | |
3108 | enum minimal_symbol_type ourtype4; | |
3109 | struct symbol_search *sr; | |
3110 | struct symbol_search *psr; | |
3111 | struct symbol_search *tail; | |
3112 | struct cleanup *old_chain = NULL; | |
ccefe4c4 | 3113 | struct search_symbols_data datum; |
c906108c | 3114 | |
176620f1 | 3115 | if (kind < VARIABLES_DOMAIN) |
8a3fe4f8 | 3116 | error (_("must search on specific domain")); |
c906108c | 3117 | |
176620f1 EZ |
3118 | ourtype = types[(int) (kind - VARIABLES_DOMAIN)]; |
3119 | ourtype2 = types2[(int) (kind - VARIABLES_DOMAIN)]; | |
3120 | ourtype3 = types3[(int) (kind - VARIABLES_DOMAIN)]; | |
3121 | ourtype4 = types4[(int) (kind - VARIABLES_DOMAIN)]; | |
c906108c SS |
3122 | |
3123 | sr = *matches = NULL; | |
3124 | tail = NULL; | |
3125 | ||
3126 | if (regexp != NULL) | |
3127 | { | |
3128 | /* Make sure spacing is right for C++ operators. | |
3129 | This is just a courtesy to make the matching less sensitive | |
3130 | to how many spaces the user leaves between 'operator' | |
3131 | and <TYPENAME> or <OPERATOR>. */ | |
3132 | char *opend; | |
3133 | char *opname = operator_chars (regexp, &opend); | |
433759f7 | 3134 | |
c906108c | 3135 | if (*opname) |
c5aa993b JM |
3136 | { |
3137 | int fix = -1; /* -1 means ok; otherwise number of spaces needed. */ | |
433759f7 | 3138 | |
c5aa993b JM |
3139 | if (isalpha (*opname) || *opname == '_' || *opname == '$') |
3140 | { | |
3141 | /* There should 1 space between 'operator' and 'TYPENAME'. */ | |
3142 | if (opname[-1] != ' ' || opname[-2] == ' ') | |
3143 | fix = 1; | |
3144 | } | |
3145 | else | |
3146 | { | |
3147 | /* There should 0 spaces between 'operator' and 'OPERATOR'. */ | |
3148 | if (opname[-1] == ' ') | |
3149 | fix = 0; | |
3150 | } | |
3151 | /* If wrong number of spaces, fix it. */ | |
3152 | if (fix >= 0) | |
3153 | { | |
045f55a6 | 3154 | char *tmp = (char *) alloca (8 + fix + strlen (opname) + 1); |
433759f7 | 3155 | |
c5aa993b JM |
3156 | sprintf (tmp, "operator%.*s%s", fix, " ", opname); |
3157 | regexp = tmp; | |
3158 | } | |
3159 | } | |
3160 | ||
c906108c | 3161 | if (0 != (val = re_comp (regexp))) |
8a3fe4f8 | 3162 | error (_("Invalid regexp (%s): %s"), val, regexp); |
c906108c SS |
3163 | } |
3164 | ||
3165 | /* Search through the partial symtabs *first* for all symbols | |
3166 | matching the regexp. That way we don't have to reproduce all of | |
3167 | the machinery below. */ | |
3168 | ||
ccefe4c4 TT |
3169 | datum.nfiles = nfiles; |
3170 | datum.files = files; | |
3171 | datum.regexp = regexp; | |
3172 | ALL_OBJFILES (objfile) | |
c5aa993b | 3173 | { |
ccefe4c4 TT |
3174 | if (objfile->sf) |
3175 | objfile->sf->qf->expand_symtabs_matching (objfile, | |
3176 | search_symbols_file_matches, | |
3177 | search_symbols_name_matches, | |
3178 | kind, | |
3179 | &datum); | |
c5aa993b | 3180 | } |
c906108c SS |
3181 | |
3182 | /* Here, we search through the minimal symbol tables for functions | |
3183 | and variables that match, and force their symbols to be read. | |
3184 | This is in particular necessary for demangled variable names, | |
3185 | which are no longer put into the partial symbol tables. | |
3186 | The symbol will then be found during the scan of symtabs below. | |
3187 | ||
3188 | For functions, find_pc_symtab should succeed if we have debug info | |
3189 | for the function, for variables we have to call lookup_symbol | |
3190 | to determine if the variable has debug info. | |
3191 | If the lookup fails, set found_misc so that we will rescan to print | |
3192 | any matching symbols without debug info. | |
c5aa993b | 3193 | */ |
c906108c | 3194 | |
176620f1 | 3195 | if (nfiles == 0 && (kind == VARIABLES_DOMAIN || kind == FUNCTIONS_DOMAIN)) |
c906108c SS |
3196 | { |
3197 | ALL_MSYMBOLS (objfile, msymbol) | |
c5aa993b | 3198 | { |
89295b4d PP |
3199 | QUIT; |
3200 | ||
c5aa993b JM |
3201 | if (MSYMBOL_TYPE (msymbol) == ourtype || |
3202 | MSYMBOL_TYPE (msymbol) == ourtype2 || | |
3203 | MSYMBOL_TYPE (msymbol) == ourtype3 || | |
3204 | MSYMBOL_TYPE (msymbol) == ourtype4) | |
3205 | { | |
25120b0d DC |
3206 | if (regexp == NULL |
3207 | || re_exec (SYMBOL_NATURAL_NAME (msymbol)) != 0) | |
c5aa993b JM |
3208 | { |
3209 | if (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol))) | |
3210 | { | |
b1262a02 DC |
3211 | /* FIXME: carlton/2003-02-04: Given that the |
3212 | semantics of lookup_symbol keeps on changing | |
3213 | slightly, it would be a nice idea if we had a | |
3214 | function lookup_symbol_minsym that found the | |
3215 | symbol associated to a given minimal symbol (if | |
3216 | any). */ | |
176620f1 | 3217 | if (kind == FUNCTIONS_DOMAIN |
2335f48e | 3218 | || lookup_symbol (SYMBOL_LINKAGE_NAME (msymbol), |
b1262a02 | 3219 | (struct block *) NULL, |
2570f2b7 | 3220 | VAR_DOMAIN, 0) |
53c5240f | 3221 | == NULL) |
b1262a02 | 3222 | found_misc = 1; |
c5aa993b JM |
3223 | } |
3224 | } | |
3225 | } | |
3226 | } | |
c906108c SS |
3227 | } |
3228 | ||
11309657 | 3229 | ALL_PRIMARY_SYMTABS (objfile, s) |
c5aa993b JM |
3230 | { |
3231 | bv = BLOCKVECTOR (s); | |
c5aa993b JM |
3232 | for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++) |
3233 | { | |
434d2d4f DJ |
3234 | struct symbol_search *prevtail = tail; |
3235 | int nfound = 0; | |
433759f7 | 3236 | |
c5aa993b | 3237 | b = BLOCKVECTOR_BLOCK (bv, i); |
de4f826b | 3238 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c5aa993b | 3239 | { |
cb1df416 | 3240 | struct symtab *real_symtab = SYMBOL_SYMTAB (sym); |
433759f7 | 3241 | |
c5aa993b | 3242 | QUIT; |
cb1df416 DJ |
3243 | |
3244 | if (file_matches (real_symtab->filename, files, nfiles) | |
25120b0d DC |
3245 | && ((regexp == NULL |
3246 | || re_exec (SYMBOL_NATURAL_NAME (sym)) != 0) | |
254e6b9e DE |
3247 | && ((kind == VARIABLES_DOMAIN |
3248 | && SYMBOL_CLASS (sym) != LOC_TYPEDEF | |
0fe7935b | 3249 | && SYMBOL_CLASS (sym) != LOC_UNRESOLVED |
c5aa993b | 3250 | && SYMBOL_CLASS (sym) != LOC_BLOCK |
254e6b9e DE |
3251 | /* LOC_CONST can be used for more than just enums, |
3252 | e.g., c++ static const members. | |
3253 | We only want to skip enums here. */ | |
3254 | && !(SYMBOL_CLASS (sym) == LOC_CONST | |
3255 | && TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_ENUM)) | |
176620f1 | 3256 | || (kind == FUNCTIONS_DOMAIN && SYMBOL_CLASS (sym) == LOC_BLOCK) |
bd2e94ce | 3257 | || (kind == TYPES_DOMAIN && SYMBOL_CLASS (sym) == LOC_TYPEDEF)))) |
c5aa993b JM |
3258 | { |
3259 | /* match */ | |
3260 | psr = (struct symbol_search *) xmalloc (sizeof (struct symbol_search)); | |
3261 | psr->block = i; | |
cb1df416 | 3262 | psr->symtab = real_symtab; |
c5aa993b JM |
3263 | psr->symbol = sym; |
3264 | psr->msymbol = NULL; | |
3265 | psr->next = NULL; | |
3266 | if (tail == NULL) | |
434d2d4f | 3267 | sr = psr; |
c5aa993b JM |
3268 | else |
3269 | tail->next = psr; | |
3270 | tail = psr; | |
434d2d4f DJ |
3271 | nfound ++; |
3272 | } | |
3273 | } | |
3274 | if (nfound > 0) | |
3275 | { | |
3276 | if (prevtail == NULL) | |
3277 | { | |
3278 | struct symbol_search dummy; | |
3279 | ||
3280 | dummy.next = sr; | |
3281 | tail = sort_search_symbols (&dummy, nfound); | |
3282 | sr = dummy.next; | |
3283 | ||
3284 | old_chain = make_cleanup_free_search_symbols (sr); | |
c5aa993b | 3285 | } |
434d2d4f DJ |
3286 | else |
3287 | tail = sort_search_symbols (prevtail, nfound); | |
c5aa993b JM |
3288 | } |
3289 | } | |
c5aa993b | 3290 | } |
c906108c SS |
3291 | |
3292 | /* If there are no eyes, avoid all contact. I mean, if there are | |
3293 | no debug symbols, then print directly from the msymbol_vector. */ | |
3294 | ||
176620f1 | 3295 | if (found_misc || kind != FUNCTIONS_DOMAIN) |
c906108c SS |
3296 | { |
3297 | ALL_MSYMBOLS (objfile, msymbol) | |
c5aa993b | 3298 | { |
89295b4d PP |
3299 | QUIT; |
3300 | ||
c5aa993b JM |
3301 | if (MSYMBOL_TYPE (msymbol) == ourtype || |
3302 | MSYMBOL_TYPE (msymbol) == ourtype2 || | |
3303 | MSYMBOL_TYPE (msymbol) == ourtype3 || | |
3304 | MSYMBOL_TYPE (msymbol) == ourtype4) | |
3305 | { | |
25120b0d DC |
3306 | if (regexp == NULL |
3307 | || re_exec (SYMBOL_NATURAL_NAME (msymbol)) != 0) | |
c5aa993b JM |
3308 | { |
3309 | /* Functions: Look up by address. */ | |
176620f1 | 3310 | if (kind != FUNCTIONS_DOMAIN || |
c5aa993b JM |
3311 | (0 == find_pc_symtab (SYMBOL_VALUE_ADDRESS (msymbol)))) |
3312 | { | |
3313 | /* Variables/Absolutes: Look up by name */ | |
2335f48e | 3314 | if (lookup_symbol (SYMBOL_LINKAGE_NAME (msymbol), |
2570f2b7 UW |
3315 | (struct block *) NULL, VAR_DOMAIN, 0) |
3316 | == NULL) | |
c5aa993b JM |
3317 | { |
3318 | /* match */ | |
3319 | psr = (struct symbol_search *) xmalloc (sizeof (struct symbol_search)); | |
3320 | psr->block = i; | |
3321 | psr->msymbol = msymbol; | |
3322 | psr->symtab = NULL; | |
3323 | psr->symbol = NULL; | |
3324 | psr->next = NULL; | |
3325 | if (tail == NULL) | |
3326 | { | |
3327 | sr = psr; | |
5bd98722 | 3328 | old_chain = make_cleanup_free_search_symbols (sr); |
c5aa993b JM |
3329 | } |
3330 | else | |
3331 | tail->next = psr; | |
3332 | tail = psr; | |
3333 | } | |
3334 | } | |
3335 | } | |
3336 | } | |
3337 | } | |
c906108c SS |
3338 | } |
3339 | ||
3340 | *matches = sr; | |
3341 | if (sr != NULL) | |
3342 | discard_cleanups (old_chain); | |
3343 | } | |
3344 | ||
3345 | /* Helper function for symtab_symbol_info, this function uses | |
3346 | the data returned from search_symbols() to print information | |
3347 | regarding the match to gdb_stdout. | |
c5aa993b | 3348 | */ |
c906108c | 3349 | static void |
176620f1 | 3350 | print_symbol_info (domain_enum kind, struct symtab *s, struct symbol *sym, |
fba45db2 | 3351 | int block, char *last) |
c906108c SS |
3352 | { |
3353 | if (last == NULL || strcmp (last, s->filename) != 0) | |
3354 | { | |
3355 | fputs_filtered ("\nFile ", gdb_stdout); | |
3356 | fputs_filtered (s->filename, gdb_stdout); | |
3357 | fputs_filtered (":\n", gdb_stdout); | |
3358 | } | |
3359 | ||
176620f1 | 3360 | if (kind != TYPES_DOMAIN && block == STATIC_BLOCK) |
c906108c | 3361 | printf_filtered ("static "); |
c5aa993b | 3362 | |
c906108c | 3363 | /* Typedef that is not a C++ class */ |
176620f1 EZ |
3364 | if (kind == TYPES_DOMAIN |
3365 | && SYMBOL_DOMAIN (sym) != STRUCT_DOMAIN) | |
a5238fbc | 3366 | typedef_print (SYMBOL_TYPE (sym), sym, gdb_stdout); |
c906108c | 3367 | /* variable, func, or typedef-that-is-c++-class */ |
176620f1 EZ |
3368 | else if (kind < TYPES_DOMAIN || |
3369 | (kind == TYPES_DOMAIN && | |
3370 | SYMBOL_DOMAIN (sym) == STRUCT_DOMAIN)) | |
c906108c SS |
3371 | { |
3372 | type_print (SYMBOL_TYPE (sym), | |
c5aa993b | 3373 | (SYMBOL_CLASS (sym) == LOC_TYPEDEF |
de5ad195 | 3374 | ? "" : SYMBOL_PRINT_NAME (sym)), |
c5aa993b | 3375 | gdb_stdout, 0); |
c906108c SS |
3376 | |
3377 | printf_filtered (";\n"); | |
3378 | } | |
c906108c SS |
3379 | } |
3380 | ||
3381 | /* This help function for symtab_symbol_info() prints information | |
3382 | for non-debugging symbols to gdb_stdout. | |
c5aa993b | 3383 | */ |
c906108c | 3384 | static void |
fba45db2 | 3385 | print_msymbol_info (struct minimal_symbol *msymbol) |
c906108c | 3386 | { |
d80b854b | 3387 | struct gdbarch *gdbarch = get_objfile_arch (msymbol_objfile (msymbol)); |
3ac4495a MS |
3388 | char *tmp; |
3389 | ||
d80b854b | 3390 | if (gdbarch_addr_bit (gdbarch) <= 32) |
bb599908 PH |
3391 | tmp = hex_string_custom (SYMBOL_VALUE_ADDRESS (msymbol) |
3392 | & (CORE_ADDR) 0xffffffff, | |
3393 | 8); | |
3ac4495a | 3394 | else |
bb599908 PH |
3395 | tmp = hex_string_custom (SYMBOL_VALUE_ADDRESS (msymbol), |
3396 | 16); | |
3ac4495a | 3397 | printf_filtered ("%s %s\n", |
de5ad195 | 3398 | tmp, SYMBOL_PRINT_NAME (msymbol)); |
c906108c SS |
3399 | } |
3400 | ||
3401 | /* This is the guts of the commands "info functions", "info types", and | |
3402 | "info variables". It calls search_symbols to find all matches and then | |
3403 | print_[m]symbol_info to print out some useful information about the | |
3404 | matches. | |
c5aa993b | 3405 | */ |
c906108c | 3406 | static void |
176620f1 | 3407 | symtab_symbol_info (char *regexp, domain_enum kind, int from_tty) |
c906108c | 3408 | { |
bc043ef3 DE |
3409 | static const char * const classnames[] = |
3410 | {"variable", "function", "type", "method"}; | |
c906108c SS |
3411 | struct symbol_search *symbols; |
3412 | struct symbol_search *p; | |
3413 | struct cleanup *old_chain; | |
3414 | char *last_filename = NULL; | |
3415 | int first = 1; | |
3416 | ||
3417 | /* must make sure that if we're interrupted, symbols gets freed */ | |
3418 | search_symbols (regexp, kind, 0, (char **) NULL, &symbols); | |
5bd98722 | 3419 | old_chain = make_cleanup_free_search_symbols (symbols); |
c906108c SS |
3420 | |
3421 | printf_filtered (regexp | |
c5aa993b JM |
3422 | ? "All %ss matching regular expression \"%s\":\n" |
3423 | : "All defined %ss:\n", | |
176620f1 | 3424 | classnames[(int) (kind - VARIABLES_DOMAIN)], regexp); |
c906108c SS |
3425 | |
3426 | for (p = symbols; p != NULL; p = p->next) | |
3427 | { | |
3428 | QUIT; | |
3429 | ||
3430 | if (p->msymbol != NULL) | |
c5aa993b JM |
3431 | { |
3432 | if (first) | |
3433 | { | |
3434 | printf_filtered ("\nNon-debugging symbols:\n"); | |
3435 | first = 0; | |
3436 | } | |
3437 | print_msymbol_info (p->msymbol); | |
3438 | } | |
c906108c | 3439 | else |
c5aa993b JM |
3440 | { |
3441 | print_symbol_info (kind, | |
3442 | p->symtab, | |
3443 | p->symbol, | |
3444 | p->block, | |
3445 | last_filename); | |
3446 | last_filename = p->symtab->filename; | |
3447 | } | |
c906108c SS |
3448 | } |
3449 | ||
3450 | do_cleanups (old_chain); | |
3451 | } | |
3452 | ||
3453 | static void | |
fba45db2 | 3454 | variables_info (char *regexp, int from_tty) |
c906108c | 3455 | { |
176620f1 | 3456 | symtab_symbol_info (regexp, VARIABLES_DOMAIN, from_tty); |
c906108c SS |
3457 | } |
3458 | ||
3459 | static void | |
fba45db2 | 3460 | functions_info (char *regexp, int from_tty) |
c906108c | 3461 | { |
176620f1 | 3462 | symtab_symbol_info (regexp, FUNCTIONS_DOMAIN, from_tty); |
c906108c SS |
3463 | } |
3464 | ||
357e46e7 | 3465 | |
c906108c | 3466 | static void |
fba45db2 | 3467 | types_info (char *regexp, int from_tty) |
c906108c | 3468 | { |
176620f1 | 3469 | symtab_symbol_info (regexp, TYPES_DOMAIN, from_tty); |
c906108c SS |
3470 | } |
3471 | ||
c906108c | 3472 | /* Breakpoint all functions matching regular expression. */ |
8926118c | 3473 | |
8b93c638 | 3474 | void |
fba45db2 | 3475 | rbreak_command_wrapper (char *regexp, int from_tty) |
8b93c638 JM |
3476 | { |
3477 | rbreak_command (regexp, from_tty); | |
3478 | } | |
8926118c | 3479 | |
95a42b64 TT |
3480 | /* A cleanup function that calls end_rbreak_breakpoints. */ |
3481 | ||
3482 | static void | |
3483 | do_end_rbreak_breakpoints (void *ignore) | |
3484 | { | |
3485 | end_rbreak_breakpoints (); | |
3486 | } | |
3487 | ||
c906108c | 3488 | static void |
fba45db2 | 3489 | rbreak_command (char *regexp, int from_tty) |
c906108c SS |
3490 | { |
3491 | struct symbol_search *ss; | |
3492 | struct symbol_search *p; | |
3493 | struct cleanup *old_chain; | |
95a42b64 TT |
3494 | char *string = NULL; |
3495 | int len = 0; | |
8bd10a10 CM |
3496 | char **files = NULL; |
3497 | int nfiles = 0; | |
c906108c | 3498 | |
8bd10a10 CM |
3499 | if (regexp) |
3500 | { | |
3501 | char *colon = strchr (regexp, ':'); | |
433759f7 | 3502 | |
8bd10a10 CM |
3503 | if (colon && *(colon + 1) != ':') |
3504 | { | |
3505 | int colon_index; | |
3506 | char * file_name; | |
3507 | ||
3508 | colon_index = colon - regexp; | |
3509 | file_name = alloca (colon_index + 1); | |
3510 | memcpy (file_name, regexp, colon_index); | |
3511 | file_name[colon_index--] = 0; | |
3512 | while (isspace (file_name[colon_index])) | |
3513 | file_name[colon_index--] = 0; | |
3514 | files = &file_name; | |
3515 | nfiles = 1; | |
3516 | regexp = colon + 1; | |
3517 | while (isspace (*regexp)) regexp++; | |
3518 | } | |
3519 | } | |
3520 | ||
3521 | search_symbols (regexp, FUNCTIONS_DOMAIN, nfiles, files, &ss); | |
5bd98722 | 3522 | old_chain = make_cleanup_free_search_symbols (ss); |
95a42b64 | 3523 | make_cleanup (free_current_contents, &string); |
c906108c | 3524 | |
95a42b64 TT |
3525 | start_rbreak_breakpoints (); |
3526 | make_cleanup (do_end_rbreak_breakpoints, NULL); | |
c906108c SS |
3527 | for (p = ss; p != NULL; p = p->next) |
3528 | { | |
3529 | if (p->msymbol == NULL) | |
c5aa993b | 3530 | { |
95a42b64 TT |
3531 | int newlen = (strlen (p->symtab->filename) |
3532 | + strlen (SYMBOL_LINKAGE_NAME (p->symbol)) | |
3533 | + 4); | |
433759f7 | 3534 | |
95a42b64 TT |
3535 | if (newlen > len) |
3536 | { | |
3537 | string = xrealloc (string, newlen); | |
3538 | len = newlen; | |
3539 | } | |
c5aa993b JM |
3540 | strcpy (string, p->symtab->filename); |
3541 | strcat (string, ":'"); | |
2335f48e | 3542 | strcat (string, SYMBOL_LINKAGE_NAME (p->symbol)); |
c5aa993b JM |
3543 | strcat (string, "'"); |
3544 | break_command (string, from_tty); | |
176620f1 | 3545 | print_symbol_info (FUNCTIONS_DOMAIN, |
c5aa993b JM |
3546 | p->symtab, |
3547 | p->symbol, | |
3548 | p->block, | |
3549 | p->symtab->filename); | |
3550 | } | |
c906108c | 3551 | else |
c5aa993b | 3552 | { |
433759f7 MS |
3553 | int newlen = (strlen (SYMBOL_LINKAGE_NAME (p->msymbol)) + 3); |
3554 | ||
95a42b64 TT |
3555 | if (newlen > len) |
3556 | { | |
3557 | string = xrealloc (string, newlen); | |
3558 | len = newlen; | |
3559 | } | |
6214f497 DJ |
3560 | strcpy (string, "'"); |
3561 | strcat (string, SYMBOL_LINKAGE_NAME (p->msymbol)); | |
3562 | strcat (string, "'"); | |
3563 | ||
3564 | break_command (string, from_tty); | |
c5aa993b | 3565 | printf_filtered ("<function, no debug info> %s;\n", |
de5ad195 | 3566 | SYMBOL_PRINT_NAME (p->msymbol)); |
c5aa993b | 3567 | } |
c906108c SS |
3568 | } |
3569 | ||
3570 | do_cleanups (old_chain); | |
3571 | } | |
c906108c | 3572 | \f |
c5aa993b | 3573 | |
c906108c SS |
3574 | /* Helper routine for make_symbol_completion_list. */ |
3575 | ||
3576 | static int return_val_size; | |
3577 | static int return_val_index; | |
3578 | static char **return_val; | |
3579 | ||
3580 | #define COMPLETION_LIST_ADD_SYMBOL(symbol, sym_text, len, text, word) \ | |
c906108c | 3581 | completion_list_add_name \ |
2335f48e | 3582 | (SYMBOL_NATURAL_NAME (symbol), (sym_text), (len), (text), (word)) |
c906108c SS |
3583 | |
3584 | /* Test to see if the symbol specified by SYMNAME (which is already | |
c5aa993b JM |
3585 | demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN |
3586 | characters. If so, add it to the current completion list. */ | |
c906108c SS |
3587 | |
3588 | static void | |
fba45db2 KB |
3589 | completion_list_add_name (char *symname, char *sym_text, int sym_text_len, |
3590 | char *text, char *word) | |
c906108c SS |
3591 | { |
3592 | int newsize; | |
c906108c SS |
3593 | |
3594 | /* clip symbols that cannot match */ | |
3595 | ||
3596 | if (strncmp (symname, sym_text, sym_text_len) != 0) | |
3597 | { | |
3598 | return; | |
3599 | } | |
3600 | ||
c906108c SS |
3601 | /* We have a match for a completion, so add SYMNAME to the current list |
3602 | of matches. Note that the name is moved to freshly malloc'd space. */ | |
3603 | ||
3604 | { | |
3605 | char *new; | |
433759f7 | 3606 | |
c906108c SS |
3607 | if (word == sym_text) |
3608 | { | |
3609 | new = xmalloc (strlen (symname) + 5); | |
3610 | strcpy (new, symname); | |
3611 | } | |
3612 | else if (word > sym_text) | |
3613 | { | |
3614 | /* Return some portion of symname. */ | |
3615 | new = xmalloc (strlen (symname) + 5); | |
3616 | strcpy (new, symname + (word - sym_text)); | |
3617 | } | |
3618 | else | |
3619 | { | |
3620 | /* Return some of SYM_TEXT plus symname. */ | |
3621 | new = xmalloc (strlen (symname) + (sym_text - word) + 5); | |
3622 | strncpy (new, word, sym_text - word); | |
3623 | new[sym_text - word] = '\0'; | |
3624 | strcat (new, symname); | |
3625 | } | |
3626 | ||
c906108c SS |
3627 | if (return_val_index + 3 > return_val_size) |
3628 | { | |
3629 | newsize = (return_val_size *= 2) * sizeof (char *); | |
3630 | return_val = (char **) xrealloc ((char *) return_val, newsize); | |
3631 | } | |
3632 | return_val[return_val_index++] = new; | |
3633 | return_val[return_val_index] = NULL; | |
3634 | } | |
3635 | } | |
3636 | ||
69636828 AF |
3637 | /* ObjC: In case we are completing on a selector, look as the msymbol |
3638 | again and feed all the selectors into the mill. */ | |
3639 | ||
3640 | static void | |
3641 | completion_list_objc_symbol (struct minimal_symbol *msymbol, char *sym_text, | |
3642 | int sym_text_len, char *text, char *word) | |
3643 | { | |
3644 | static char *tmp = NULL; | |
3645 | static unsigned int tmplen = 0; | |
9af17804 | 3646 | |
69636828 AF |
3647 | char *method, *category, *selector; |
3648 | char *tmp2 = NULL; | |
9af17804 | 3649 | |
69636828 AF |
3650 | method = SYMBOL_NATURAL_NAME (msymbol); |
3651 | ||
3652 | /* Is it a method? */ | |
3653 | if ((method[0] != '-') && (method[0] != '+')) | |
3654 | return; | |
3655 | ||
3656 | if (sym_text[0] == '[') | |
3657 | /* Complete on shortened method method. */ | |
3658 | completion_list_add_name (method + 1, sym_text, sym_text_len, text, word); | |
9af17804 | 3659 | |
69636828 AF |
3660 | while ((strlen (method) + 1) >= tmplen) |
3661 | { | |
3662 | if (tmplen == 0) | |
3663 | tmplen = 1024; | |
3664 | else | |
3665 | tmplen *= 2; | |
3666 | tmp = xrealloc (tmp, tmplen); | |
3667 | } | |
3668 | selector = strchr (method, ' '); | |
3669 | if (selector != NULL) | |
3670 | selector++; | |
9af17804 | 3671 | |
69636828 | 3672 | category = strchr (method, '('); |
9af17804 | 3673 | |
69636828 AF |
3674 | if ((category != NULL) && (selector != NULL)) |
3675 | { | |
3676 | memcpy (tmp, method, (category - method)); | |
3677 | tmp[category - method] = ' '; | |
3678 | memcpy (tmp + (category - method) + 1, selector, strlen (selector) + 1); | |
3679 | completion_list_add_name (tmp, sym_text, sym_text_len, text, word); | |
3680 | if (sym_text[0] == '[') | |
3681 | completion_list_add_name (tmp + 1, sym_text, sym_text_len, text, word); | |
3682 | } | |
9af17804 | 3683 | |
69636828 AF |
3684 | if (selector != NULL) |
3685 | { | |
3686 | /* Complete on selector only. */ | |
3687 | strcpy (tmp, selector); | |
3688 | tmp2 = strchr (tmp, ']'); | |
3689 | if (tmp2 != NULL) | |
3690 | *tmp2 = '\0'; | |
9af17804 | 3691 | |
69636828 AF |
3692 | completion_list_add_name (tmp, sym_text, sym_text_len, text, word); |
3693 | } | |
3694 | } | |
3695 | ||
3696 | /* Break the non-quoted text based on the characters which are in | |
3697 | symbols. FIXME: This should probably be language-specific. */ | |
3698 | ||
3699 | static char * | |
3700 | language_search_unquoted_string (char *text, char *p) | |
3701 | { | |
3702 | for (; p > text; --p) | |
3703 | { | |
3704 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0') | |
3705 | continue; | |
3706 | else | |
3707 | { | |
3708 | if ((current_language->la_language == language_objc)) | |
3709 | { | |
3710 | if (p[-1] == ':') /* might be part of a method name */ | |
3711 | continue; | |
3712 | else if (p[-1] == '[' && (p[-2] == '-' || p[-2] == '+')) | |
3713 | p -= 2; /* beginning of a method name */ | |
3714 | else if (p[-1] == ' ' || p[-1] == '(' || p[-1] == ')') | |
3715 | { /* might be part of a method name */ | |
3716 | char *t = p; | |
3717 | ||
3718 | /* Seeing a ' ' or a '(' is not conclusive evidence | |
3719 | that we are in the middle of a method name. However, | |
3720 | finding "-[" or "+[" should be pretty un-ambiguous. | |
3721 | Unfortunately we have to find it now to decide. */ | |
3722 | ||
3723 | while (t > text) | |
3724 | if (isalnum (t[-1]) || t[-1] == '_' || | |
3725 | t[-1] == ' ' || t[-1] == ':' || | |
3726 | t[-1] == '(' || t[-1] == ')') | |
3727 | --t; | |
3728 | else | |
3729 | break; | |
3730 | ||
3731 | if (t[-1] == '[' && (t[-2] == '-' || t[-2] == '+')) | |
3732 | p = t - 2; /* method name detected */ | |
3733 | /* else we leave with p unchanged */ | |
3734 | } | |
3735 | } | |
3736 | break; | |
3737 | } | |
3738 | } | |
3739 | return p; | |
3740 | } | |
3741 | ||
edb3359d DJ |
3742 | static void |
3743 | completion_list_add_fields (struct symbol *sym, char *sym_text, | |
3744 | int sym_text_len, char *text, char *word) | |
3745 | { | |
3746 | if (SYMBOL_CLASS (sym) == LOC_TYPEDEF) | |
3747 | { | |
3748 | struct type *t = SYMBOL_TYPE (sym); | |
3749 | enum type_code c = TYPE_CODE (t); | |
3750 | int j; | |
3751 | ||
3752 | if (c == TYPE_CODE_UNION || c == TYPE_CODE_STRUCT) | |
3753 | for (j = TYPE_N_BASECLASSES (t); j < TYPE_NFIELDS (t); j++) | |
3754 | if (TYPE_FIELD_NAME (t, j)) | |
3755 | completion_list_add_name (TYPE_FIELD_NAME (t, j), | |
3756 | sym_text, sym_text_len, text, word); | |
3757 | } | |
3758 | } | |
3759 | ||
ccefe4c4 TT |
3760 | /* Type of the user_data argument passed to add_macro_name or |
3761 | add_partial_symbol_name. The contents are simply whatever is | |
3762 | needed by completion_list_add_name. */ | |
3763 | struct add_name_data | |
9a044a89 TT |
3764 | { |
3765 | char *sym_text; | |
3766 | int sym_text_len; | |
3767 | char *text; | |
3768 | char *word; | |
3769 | }; | |
3770 | ||
3771 | /* A callback used with macro_for_each and macro_for_each_in_scope. | |
3772 | This adds a macro's name to the current completion list. */ | |
3773 | static void | |
3774 | add_macro_name (const char *name, const struct macro_definition *ignore, | |
3775 | void *user_data) | |
3776 | { | |
ccefe4c4 | 3777 | struct add_name_data *datum = (struct add_name_data *) user_data; |
433759f7 | 3778 | |
ccefe4c4 TT |
3779 | completion_list_add_name ((char *) name, |
3780 | datum->sym_text, datum->sym_text_len, | |
3781 | datum->text, datum->word); | |
3782 | } | |
3783 | ||
3784 | /* A callback for map_partial_symbol_names. */ | |
3785 | static void | |
3786 | add_partial_symbol_name (const char *name, void *user_data) | |
3787 | { | |
3788 | struct add_name_data *datum = (struct add_name_data *) user_data; | |
433759f7 | 3789 | |
9a044a89 TT |
3790 | completion_list_add_name ((char *) name, |
3791 | datum->sym_text, datum->sym_text_len, | |
3792 | datum->text, datum->word); | |
3793 | } | |
3794 | ||
c906108c | 3795 | char ** |
f55ee35c JK |
3796 | default_make_symbol_completion_list_break_on (char *text, char *word, |
3797 | const char *break_on) | |
c906108c | 3798 | { |
41d27058 JB |
3799 | /* Problem: All of the symbols have to be copied because readline |
3800 | frees them. I'm not going to worry about this; hopefully there | |
3801 | won't be that many. */ | |
3802 | ||
de4f826b DC |
3803 | struct symbol *sym; |
3804 | struct symtab *s; | |
de4f826b DC |
3805 | struct minimal_symbol *msymbol; |
3806 | struct objfile *objfile; | |
edb3359d DJ |
3807 | struct block *b; |
3808 | const struct block *surrounding_static_block, *surrounding_global_block; | |
de4f826b | 3809 | struct dict_iterator iter; |
c906108c SS |
3810 | /* The symbol we are completing on. Points in same buffer as text. */ |
3811 | char *sym_text; | |
3812 | /* Length of sym_text. */ | |
3813 | int sym_text_len; | |
ccefe4c4 | 3814 | struct add_name_data datum; |
c906108c | 3815 | |
41d27058 | 3816 | /* Now look for the symbol we are supposed to complete on. */ |
c906108c SS |
3817 | { |
3818 | char *p; | |
3819 | char quote_found; | |
3820 | char *quote_pos = NULL; | |
3821 | ||
3822 | /* First see if this is a quoted string. */ | |
3823 | quote_found = '\0'; | |
3824 | for (p = text; *p != '\0'; ++p) | |
3825 | { | |
3826 | if (quote_found != '\0') | |
3827 | { | |
3828 | if (*p == quote_found) | |
3829 | /* Found close quote. */ | |
3830 | quote_found = '\0'; | |
3831 | else if (*p == '\\' && p[1] == quote_found) | |
3832 | /* A backslash followed by the quote character | |
c5aa993b | 3833 | doesn't end the string. */ |
c906108c SS |
3834 | ++p; |
3835 | } | |
3836 | else if (*p == '\'' || *p == '"') | |
3837 | { | |
3838 | quote_found = *p; | |
3839 | quote_pos = p; | |
3840 | } | |
3841 | } | |
3842 | if (quote_found == '\'') | |
3843 | /* A string within single quotes can be a symbol, so complete on it. */ | |
3844 | sym_text = quote_pos + 1; | |
3845 | else if (quote_found == '"') | |
3846 | /* A double-quoted string is never a symbol, nor does it make sense | |
c5aa993b | 3847 | to complete it any other way. */ |
c94fdfd0 EZ |
3848 | { |
3849 | return_val = (char **) xmalloc (sizeof (char *)); | |
3850 | return_val[0] = NULL; | |
3851 | return return_val; | |
3852 | } | |
c906108c SS |
3853 | else |
3854 | { | |
3855 | /* It is not a quoted string. Break it based on the characters | |
3856 | which are in symbols. */ | |
3857 | while (p > text) | |
3858 | { | |
95699ff0 | 3859 | if (isalnum (p[-1]) || p[-1] == '_' || p[-1] == '\0' |
f55ee35c | 3860 | || p[-1] == ':' || strchr (break_on, p[-1]) != NULL) |
c906108c SS |
3861 | --p; |
3862 | else | |
3863 | break; | |
3864 | } | |
3865 | sym_text = p; | |
3866 | } | |
3867 | } | |
3868 | ||
3869 | sym_text_len = strlen (sym_text); | |
3870 | ||
3871 | return_val_size = 100; | |
3872 | return_val_index = 0; | |
3873 | return_val = (char **) xmalloc ((return_val_size + 1) * sizeof (char *)); | |
3874 | return_val[0] = NULL; | |
3875 | ||
ccefe4c4 TT |
3876 | datum.sym_text = sym_text; |
3877 | datum.sym_text_len = sym_text_len; | |
3878 | datum.text = text; | |
3879 | datum.word = word; | |
3880 | ||
c906108c SS |
3881 | /* Look through the partial symtabs for all symbols which begin |
3882 | by matching SYM_TEXT. Add each one that you find to the list. */ | |
ccefe4c4 | 3883 | map_partial_symbol_names (add_partial_symbol_name, &datum); |
c906108c SS |
3884 | |
3885 | /* At this point scan through the misc symbol vectors and add each | |
3886 | symbol you find to the list. Eventually we want to ignore | |
3887 | anything that isn't a text symbol (everything else will be | |
3888 | handled by the psymtab code above). */ | |
3889 | ||
3890 | ALL_MSYMBOLS (objfile, msymbol) | |
c5aa993b JM |
3891 | { |
3892 | QUIT; | |
3893 | COMPLETION_LIST_ADD_SYMBOL (msymbol, sym_text, sym_text_len, text, word); | |
9af17804 | 3894 | |
69636828 | 3895 | completion_list_objc_symbol (msymbol, sym_text, sym_text_len, text, word); |
c5aa993b | 3896 | } |
c906108c SS |
3897 | |
3898 | /* Search upwards from currently selected frame (so that we can | |
edb3359d DJ |
3899 | complete on local vars). Also catch fields of types defined in |
3900 | this places which match our text string. Only complete on types | |
3901 | visible from current context. */ | |
3902 | ||
3903 | b = get_selected_block (0); | |
3904 | surrounding_static_block = block_static_block (b); | |
3905 | surrounding_global_block = block_global_block (b); | |
3906 | if (surrounding_static_block != NULL) | |
3907 | while (b != surrounding_static_block) | |
3908 | { | |
3909 | QUIT; | |
c906108c | 3910 | |
edb3359d DJ |
3911 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
3912 | { | |
3913 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, | |
3914 | word); | |
3915 | completion_list_add_fields (sym, sym_text, sym_text_len, text, | |
3916 | word); | |
3917 | } | |
c5aa993b | 3918 | |
edb3359d DJ |
3919 | /* Stop when we encounter an enclosing function. Do not stop for |
3920 | non-inlined functions - the locals of the enclosing function | |
3921 | are in scope for a nested function. */ | |
3922 | if (BLOCK_FUNCTION (b) != NULL && block_inlined_p (b)) | |
3923 | break; | |
3924 | b = BLOCK_SUPERBLOCK (b); | |
3925 | } | |
c906108c | 3926 | |
edb3359d | 3927 | /* Add fields from the file's types; symbols will be added below. */ |
c906108c | 3928 | |
edb3359d DJ |
3929 | if (surrounding_static_block != NULL) |
3930 | ALL_BLOCK_SYMBOLS (surrounding_static_block, iter, sym) | |
3931 | completion_list_add_fields (sym, sym_text, sym_text_len, text, word); | |
3932 | ||
3933 | if (surrounding_global_block != NULL) | |
3934 | ALL_BLOCK_SYMBOLS (surrounding_global_block, iter, sym) | |
3935 | completion_list_add_fields (sym, sym_text, sym_text_len, text, word); | |
c906108c SS |
3936 | |
3937 | /* Go through the symtabs and check the externs and statics for | |
3938 | symbols which match. */ | |
3939 | ||
11309657 | 3940 | ALL_PRIMARY_SYMTABS (objfile, s) |
c5aa993b JM |
3941 | { |
3942 | QUIT; | |
3943 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK); | |
de4f826b | 3944 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c5aa993b | 3945 | { |
c5aa993b JM |
3946 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
3947 | } | |
3948 | } | |
c906108c | 3949 | |
11309657 | 3950 | ALL_PRIMARY_SYMTABS (objfile, s) |
c5aa993b JM |
3951 | { |
3952 | QUIT; | |
3953 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK); | |
de4f826b | 3954 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c5aa993b | 3955 | { |
c5aa993b JM |
3956 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
3957 | } | |
3958 | } | |
c906108c | 3959 | |
9a044a89 TT |
3960 | if (current_language->la_macro_expansion == macro_expansion_c) |
3961 | { | |
3962 | struct macro_scope *scope; | |
9a044a89 TT |
3963 | |
3964 | /* Add any macros visible in the default scope. Note that this | |
3965 | may yield the occasional wrong result, because an expression | |
3966 | might be evaluated in a scope other than the default. For | |
3967 | example, if the user types "break file:line if <TAB>", the | |
3968 | resulting expression will be evaluated at "file:line" -- but | |
3969 | at there does not seem to be a way to detect this at | |
3970 | completion time. */ | |
3971 | scope = default_macro_scope (); | |
3972 | if (scope) | |
3973 | { | |
3974 | macro_for_each_in_scope (scope->file, scope->line, | |
3975 | add_macro_name, &datum); | |
3976 | xfree (scope); | |
3977 | } | |
3978 | ||
3979 | /* User-defined macros are always visible. */ | |
3980 | macro_for_each (macro_user_macros, add_macro_name, &datum); | |
3981 | } | |
3982 | ||
c906108c SS |
3983 | return (return_val); |
3984 | } | |
3985 | ||
f55ee35c JK |
3986 | char ** |
3987 | default_make_symbol_completion_list (char *text, char *word) | |
3988 | { | |
3989 | return default_make_symbol_completion_list_break_on (text, word, ""); | |
3990 | } | |
3991 | ||
41d27058 JB |
3992 | /* Return a NULL terminated array of all symbols (regardless of class) |
3993 | which begin by matching TEXT. If the answer is no symbols, then | |
3994 | the return value is an array which contains only a NULL pointer. */ | |
3995 | ||
3996 | char ** | |
3997 | make_symbol_completion_list (char *text, char *word) | |
3998 | { | |
3999 | return current_language->la_make_symbol_completion_list (text, word); | |
4000 | } | |
4001 | ||
d8906c6f TJB |
4002 | /* Like make_symbol_completion_list, but suitable for use as a |
4003 | completion function. */ | |
4004 | ||
4005 | char ** | |
4006 | make_symbol_completion_list_fn (struct cmd_list_element *ignore, | |
4007 | char *text, char *word) | |
4008 | { | |
4009 | return make_symbol_completion_list (text, word); | |
4010 | } | |
4011 | ||
c94fdfd0 EZ |
4012 | /* Like make_symbol_completion_list, but returns a list of symbols |
4013 | defined in a source file FILE. */ | |
4014 | ||
4015 | char ** | |
4016 | make_file_symbol_completion_list (char *text, char *word, char *srcfile) | |
4017 | { | |
52f0bd74 AC |
4018 | struct symbol *sym; |
4019 | struct symtab *s; | |
4020 | struct block *b; | |
de4f826b | 4021 | struct dict_iterator iter; |
c94fdfd0 EZ |
4022 | /* The symbol we are completing on. Points in same buffer as text. */ |
4023 | char *sym_text; | |
4024 | /* Length of sym_text. */ | |
4025 | int sym_text_len; | |
4026 | ||
4027 | /* Now look for the symbol we are supposed to complete on. | |
4028 | FIXME: This should be language-specific. */ | |
4029 | { | |
4030 | char *p; | |
4031 | char quote_found; | |
4032 | char *quote_pos = NULL; | |
4033 | ||
4034 | /* First see if this is a quoted string. */ | |
4035 | quote_found = '\0'; | |
4036 | for (p = text; *p != '\0'; ++p) | |
4037 | { | |
4038 | if (quote_found != '\0') | |
4039 | { | |
4040 | if (*p == quote_found) | |
4041 | /* Found close quote. */ | |
4042 | quote_found = '\0'; | |
4043 | else if (*p == '\\' && p[1] == quote_found) | |
4044 | /* A backslash followed by the quote character | |
4045 | doesn't end the string. */ | |
4046 | ++p; | |
4047 | } | |
4048 | else if (*p == '\'' || *p == '"') | |
4049 | { | |
4050 | quote_found = *p; | |
4051 | quote_pos = p; | |
4052 | } | |
4053 | } | |
4054 | if (quote_found == '\'') | |
4055 | /* A string within single quotes can be a symbol, so complete on it. */ | |
4056 | sym_text = quote_pos + 1; | |
4057 | else if (quote_found == '"') | |
4058 | /* A double-quoted string is never a symbol, nor does it make sense | |
4059 | to complete it any other way. */ | |
4060 | { | |
4061 | return_val = (char **) xmalloc (sizeof (char *)); | |
4062 | return_val[0] = NULL; | |
4063 | return return_val; | |
4064 | } | |
4065 | else | |
4066 | { | |
69636828 AF |
4067 | /* Not a quoted string. */ |
4068 | sym_text = language_search_unquoted_string (text, p); | |
c94fdfd0 EZ |
4069 | } |
4070 | } | |
4071 | ||
4072 | sym_text_len = strlen (sym_text); | |
4073 | ||
4074 | return_val_size = 10; | |
4075 | return_val_index = 0; | |
4076 | return_val = (char **) xmalloc ((return_val_size + 1) * sizeof (char *)); | |
4077 | return_val[0] = NULL; | |
4078 | ||
4079 | /* Find the symtab for SRCFILE (this loads it if it was not yet read | |
4080 | in). */ | |
4081 | s = lookup_symtab (srcfile); | |
4082 | if (s == NULL) | |
4083 | { | |
4084 | /* Maybe they typed the file with leading directories, while the | |
4085 | symbol tables record only its basename. */ | |
31889e00 | 4086 | const char *tail = lbasename (srcfile); |
c94fdfd0 EZ |
4087 | |
4088 | if (tail > srcfile) | |
4089 | s = lookup_symtab (tail); | |
4090 | } | |
4091 | ||
4092 | /* If we have no symtab for that file, return an empty list. */ | |
4093 | if (s == NULL) | |
4094 | return (return_val); | |
4095 | ||
4096 | /* Go through this symtab and check the externs and statics for | |
4097 | symbols which match. */ | |
4098 | ||
4099 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), GLOBAL_BLOCK); | |
de4f826b | 4100 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c94fdfd0 | 4101 | { |
c94fdfd0 EZ |
4102 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
4103 | } | |
4104 | ||
4105 | b = BLOCKVECTOR_BLOCK (BLOCKVECTOR (s), STATIC_BLOCK); | |
de4f826b | 4106 | ALL_BLOCK_SYMBOLS (b, iter, sym) |
c94fdfd0 | 4107 | { |
c94fdfd0 EZ |
4108 | COMPLETION_LIST_ADD_SYMBOL (sym, sym_text, sym_text_len, text, word); |
4109 | } | |
4110 | ||
4111 | return (return_val); | |
4112 | } | |
4113 | ||
4114 | /* A helper function for make_source_files_completion_list. It adds | |
4115 | another file name to a list of possible completions, growing the | |
4116 | list as necessary. */ | |
4117 | ||
4118 | static void | |
4119 | add_filename_to_list (const char *fname, char *text, char *word, | |
4120 | char ***list, int *list_used, int *list_alloced) | |
4121 | { | |
4122 | char *new; | |
4123 | size_t fnlen = strlen (fname); | |
4124 | ||
4125 | if (*list_used + 1 >= *list_alloced) | |
4126 | { | |
4127 | *list_alloced *= 2; | |
4128 | *list = (char **) xrealloc ((char *) *list, | |
4129 | *list_alloced * sizeof (char *)); | |
4130 | } | |
4131 | ||
4132 | if (word == text) | |
4133 | { | |
4134 | /* Return exactly fname. */ | |
4135 | new = xmalloc (fnlen + 5); | |
4136 | strcpy (new, fname); | |
4137 | } | |
4138 | else if (word > text) | |
4139 | { | |
4140 | /* Return some portion of fname. */ | |
4141 | new = xmalloc (fnlen + 5); | |
4142 | strcpy (new, fname + (word - text)); | |
4143 | } | |
4144 | else | |
4145 | { | |
4146 | /* Return some of TEXT plus fname. */ | |
4147 | new = xmalloc (fnlen + (text - word) + 5); | |
4148 | strncpy (new, word, text - word); | |
4149 | new[text - word] = '\0'; | |
4150 | strcat (new, fname); | |
4151 | } | |
4152 | (*list)[*list_used] = new; | |
4153 | (*list)[++*list_used] = NULL; | |
4154 | } | |
4155 | ||
4156 | static int | |
4157 | not_interesting_fname (const char *fname) | |
4158 | { | |
4159 | static const char *illegal_aliens[] = { | |
4160 | "_globals_", /* inserted by coff_symtab_read */ | |
4161 | NULL | |
4162 | }; | |
4163 | int i; | |
4164 | ||
4165 | for (i = 0; illegal_aliens[i]; i++) | |
4166 | { | |
4167 | if (strcmp (fname, illegal_aliens[i]) == 0) | |
4168 | return 1; | |
4169 | } | |
4170 | return 0; | |
4171 | } | |
4172 | ||
ccefe4c4 TT |
4173 | /* An object of this type is passed as the user_data argument to |
4174 | map_partial_symbol_filenames. */ | |
4175 | struct add_partial_filename_data | |
4176 | { | |
4177 | int *first; | |
4178 | char *text; | |
4179 | char *word; | |
4180 | int text_len; | |
4181 | char ***list; | |
4182 | int *list_used; | |
4183 | int *list_alloced; | |
4184 | }; | |
4185 | ||
4186 | /* A callback for map_partial_symbol_filenames. */ | |
4187 | static void | |
2837d59e | 4188 | maybe_add_partial_symtab_filename (const char *filename, const char *fullname, |
ccefe4c4 TT |
4189 | void *user_data) |
4190 | { | |
4191 | struct add_partial_filename_data *data = user_data; | |
4192 | ||
4193 | if (not_interesting_fname (filename)) | |
4194 | return; | |
4195 | if (!filename_seen (filename, 1, data->first) | |
4196 | #if HAVE_DOS_BASED_FILE_SYSTEM | |
4197 | && strncasecmp (filename, data->text, data->text_len) == 0 | |
4198 | #else | |
4199 | && strncmp (filename, data->text, data->text_len) == 0 | |
4200 | #endif | |
4201 | ) | |
4202 | { | |
4203 | /* This file matches for a completion; add it to the | |
4204 | current list of matches. */ | |
4205 | add_filename_to_list (filename, data->text, data->word, | |
4206 | data->list, data->list_used, data->list_alloced); | |
4207 | } | |
4208 | else | |
4209 | { | |
4210 | const char *base_name = lbasename (filename); | |
433759f7 | 4211 | |
ccefe4c4 TT |
4212 | if (base_name != filename |
4213 | && !filename_seen (base_name, 1, data->first) | |
4214 | #if HAVE_DOS_BASED_FILE_SYSTEM | |
4215 | && strncasecmp (base_name, data->text, data->text_len) == 0 | |
4216 | #else | |
4217 | && strncmp (base_name, data->text, data->text_len) == 0 | |
4218 | #endif | |
4219 | ) | |
4220 | add_filename_to_list (base_name, data->text, data->word, | |
4221 | data->list, data->list_used, data->list_alloced); | |
4222 | } | |
4223 | } | |
4224 | ||
c94fdfd0 EZ |
4225 | /* Return a NULL terminated array of all source files whose names |
4226 | begin with matching TEXT. The file names are looked up in the | |
4227 | symbol tables of this program. If the answer is no matchess, then | |
4228 | the return value is an array which contains only a NULL pointer. */ | |
4229 | ||
4230 | char ** | |
4231 | make_source_files_completion_list (char *text, char *word) | |
4232 | { | |
52f0bd74 | 4233 | struct symtab *s; |
52f0bd74 | 4234 | struct objfile *objfile; |
c94fdfd0 EZ |
4235 | int first = 1; |
4236 | int list_alloced = 1; | |
4237 | int list_used = 0; | |
4238 | size_t text_len = strlen (text); | |
4239 | char **list = (char **) xmalloc (list_alloced * sizeof (char *)); | |
31889e00 | 4240 | const char *base_name; |
ccefe4c4 | 4241 | struct add_partial_filename_data datum; |
c94fdfd0 EZ |
4242 | |
4243 | list[0] = NULL; | |
4244 | ||
4245 | if (!have_full_symbols () && !have_partial_symbols ()) | |
4246 | return list; | |
4247 | ||
4248 | ALL_SYMTABS (objfile, s) | |
4249 | { | |
4250 | if (not_interesting_fname (s->filename)) | |
4251 | continue; | |
4252 | if (!filename_seen (s->filename, 1, &first) | |
4253 | #if HAVE_DOS_BASED_FILE_SYSTEM | |
4254 | && strncasecmp (s->filename, text, text_len) == 0 | |
4255 | #else | |
4256 | && strncmp (s->filename, text, text_len) == 0 | |
4257 | #endif | |
4258 | ) | |
4259 | { | |
4260 | /* This file matches for a completion; add it to the current | |
4261 | list of matches. */ | |
4262 | add_filename_to_list (s->filename, text, word, | |
4263 | &list, &list_used, &list_alloced); | |
4264 | } | |
4265 | else | |
4266 | { | |
4267 | /* NOTE: We allow the user to type a base name when the | |
4268 | debug info records leading directories, but not the other | |
4269 | way around. This is what subroutines of breakpoint | |
4270 | command do when they parse file names. */ | |
31889e00 | 4271 | base_name = lbasename (s->filename); |
c94fdfd0 EZ |
4272 | if (base_name != s->filename |
4273 | && !filename_seen (base_name, 1, &first) | |
4274 | #if HAVE_DOS_BASED_FILE_SYSTEM | |
4275 | && strncasecmp (base_name, text, text_len) == 0 | |
4276 | #else | |
4277 | && strncmp (base_name, text, text_len) == 0 | |
4278 | #endif | |
4279 | ) | |
4280 | add_filename_to_list (base_name, text, word, | |
4281 | &list, &list_used, &list_alloced); | |
4282 | } | |
4283 | } | |
4284 | ||
ccefe4c4 TT |
4285 | datum.first = &first; |
4286 | datum.text = text; | |
4287 | datum.word = word; | |
4288 | datum.text_len = text_len; | |
4289 | datum.list = &list; | |
4290 | datum.list_used = &list_used; | |
4291 | datum.list_alloced = &list_alloced; | |
4292 | map_partial_symbol_filenames (maybe_add_partial_symtab_filename, &datum); | |
c94fdfd0 EZ |
4293 | |
4294 | return list; | |
4295 | } | |
4296 | ||
c906108c SS |
4297 | /* Determine if PC is in the prologue of a function. The prologue is the area |
4298 | between the first instruction of a function, and the first executable line. | |
4299 | Returns 1 if PC *might* be in prologue, 0 if definately *not* in prologue. | |
4300 | ||
4301 | If non-zero, func_start is where we think the prologue starts, possibly | |
4302 | by previous examination of symbol table information. | |
4303 | */ | |
4304 | ||
4305 | int | |
d80b854b | 4306 | in_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR func_start) |
c906108c SS |
4307 | { |
4308 | struct symtab_and_line sal; | |
4309 | CORE_ADDR func_addr, func_end; | |
4310 | ||
54cf9c03 EZ |
4311 | /* We have several sources of information we can consult to figure |
4312 | this out. | |
4313 | - Compilers usually emit line number info that marks the prologue | |
4314 | as its own "source line". So the ending address of that "line" | |
4315 | is the end of the prologue. If available, this is the most | |
4316 | reliable method. | |
4317 | - The minimal symbols and partial symbols, which can usually tell | |
4318 | us the starting and ending addresses of a function. | |
4319 | - If we know the function's start address, we can call the | |
a433963d | 4320 | architecture-defined gdbarch_skip_prologue function to analyze the |
54cf9c03 EZ |
4321 | instruction stream and guess where the prologue ends. |
4322 | - Our `func_start' argument; if non-zero, this is the caller's | |
4323 | best guess as to the function's entry point. At the time of | |
4324 | this writing, handle_inferior_event doesn't get this right, so | |
4325 | it should be our last resort. */ | |
4326 | ||
4327 | /* Consult the partial symbol table, to find which function | |
4328 | the PC is in. */ | |
4329 | if (! find_pc_partial_function (pc, NULL, &func_addr, &func_end)) | |
4330 | { | |
4331 | CORE_ADDR prologue_end; | |
c906108c | 4332 | |
54cf9c03 EZ |
4333 | /* We don't even have minsym information, so fall back to using |
4334 | func_start, if given. */ | |
4335 | if (! func_start) | |
4336 | return 1; /* We *might* be in a prologue. */ | |
c906108c | 4337 | |
d80b854b | 4338 | prologue_end = gdbarch_skip_prologue (gdbarch, func_start); |
c906108c | 4339 | |
54cf9c03 EZ |
4340 | return func_start <= pc && pc < prologue_end; |
4341 | } | |
c906108c | 4342 | |
54cf9c03 EZ |
4343 | /* If we have line number information for the function, that's |
4344 | usually pretty reliable. */ | |
4345 | sal = find_pc_line (func_addr, 0); | |
c906108c | 4346 | |
54cf9c03 EZ |
4347 | /* Now sal describes the source line at the function's entry point, |
4348 | which (by convention) is the prologue. The end of that "line", | |
4349 | sal.end, is the end of the prologue. | |
4350 | ||
4351 | Note that, for functions whose source code is all on a single | |
4352 | line, the line number information doesn't always end up this way. | |
4353 | So we must verify that our purported end-of-prologue address is | |
4354 | *within* the function, not at its start or end. */ | |
4355 | if (sal.line == 0 | |
4356 | || sal.end <= func_addr | |
4357 | || func_end <= sal.end) | |
4358 | { | |
4359 | /* We don't have any good line number info, so use the minsym | |
4360 | information, together with the architecture-specific prologue | |
4361 | scanning code. */ | |
d80b854b | 4362 | CORE_ADDR prologue_end = gdbarch_skip_prologue (gdbarch, func_addr); |
c906108c | 4363 | |
54cf9c03 EZ |
4364 | return func_addr <= pc && pc < prologue_end; |
4365 | } | |
c906108c | 4366 | |
54cf9c03 EZ |
4367 | /* We have line number info, and it looks good. */ |
4368 | return func_addr <= pc && pc < sal.end; | |
c906108c SS |
4369 | } |
4370 | ||
634aa483 AC |
4371 | /* Given PC at the function's start address, attempt to find the |
4372 | prologue end using SAL information. Return zero if the skip fails. | |
4373 | ||
4374 | A non-optimized prologue traditionally has one SAL for the function | |
4375 | and a second for the function body. A single line function has | |
4376 | them both pointing at the same line. | |
4377 | ||
4378 | An optimized prologue is similar but the prologue may contain | |
4379 | instructions (SALs) from the instruction body. Need to skip those | |
4380 | while not getting into the function body. | |
4381 | ||
4382 | The functions end point and an increasing SAL line are used as | |
4383 | indicators of the prologue's endpoint. | |
4384 | ||
4385 | This code is based on the function refine_prologue_limit (versions | |
4386 | found in both ia64 and ppc). */ | |
4387 | ||
4388 | CORE_ADDR | |
d80b854b | 4389 | skip_prologue_using_sal (struct gdbarch *gdbarch, CORE_ADDR func_addr) |
634aa483 AC |
4390 | { |
4391 | struct symtab_and_line prologue_sal; | |
4392 | CORE_ADDR start_pc; | |
4393 | CORE_ADDR end_pc; | |
d54be744 | 4394 | struct block *bl; |
634aa483 AC |
4395 | |
4396 | /* Get an initial range for the function. */ | |
4397 | find_pc_partial_function (func_addr, NULL, &start_pc, &end_pc); | |
d80b854b | 4398 | start_pc += gdbarch_deprecated_function_start_offset (gdbarch); |
634aa483 AC |
4399 | |
4400 | prologue_sal = find_pc_line (start_pc, 0); | |
4401 | if (prologue_sal.line != 0) | |
4402 | { | |
d54be744 DJ |
4403 | /* For langauges other than assembly, treat two consecutive line |
4404 | entries at the same address as a zero-instruction prologue. | |
4405 | The GNU assembler emits separate line notes for each instruction | |
4406 | in a multi-instruction macro, but compilers generally will not | |
4407 | do this. */ | |
4408 | if (prologue_sal.symtab->language != language_asm) | |
4409 | { | |
4410 | struct linetable *linetable = LINETABLE (prologue_sal.symtab); | |
d54be744 DJ |
4411 | int idx = 0; |
4412 | ||
4413 | /* Skip any earlier lines, and any end-of-sequence marker | |
4414 | from a previous function. */ | |
4415 | while (linetable->item[idx].pc != prologue_sal.pc | |
4416 | || linetable->item[idx].line == 0) | |
4417 | idx++; | |
4418 | ||
4419 | if (idx+1 < linetable->nitems | |
4420 | && linetable->item[idx+1].line != 0 | |
4421 | && linetable->item[idx+1].pc == start_pc) | |
4422 | return start_pc; | |
4423 | } | |
4424 | ||
576c2025 FF |
4425 | /* If there is only one sal that covers the entire function, |
4426 | then it is probably a single line function, like | |
4427 | "foo(){}". */ | |
91934273 | 4428 | if (prologue_sal.end >= end_pc) |
4e463ff5 | 4429 | return 0; |
d54be744 | 4430 | |
634aa483 AC |
4431 | while (prologue_sal.end < end_pc) |
4432 | { | |
4433 | struct symtab_and_line sal; | |
4434 | ||
4435 | sal = find_pc_line (prologue_sal.end, 0); | |
4436 | if (sal.line == 0) | |
4437 | break; | |
4438 | /* Assume that a consecutive SAL for the same (or larger) | |
4439 | line mark the prologue -> body transition. */ | |
4440 | if (sal.line >= prologue_sal.line) | |
4441 | break; | |
edb3359d DJ |
4442 | |
4443 | /* The line number is smaller. Check that it's from the | |
4444 | same function, not something inlined. If it's inlined, | |
4445 | then there is no point comparing the line numbers. */ | |
4446 | bl = block_for_pc (prologue_sal.end); | |
4447 | while (bl) | |
4448 | { | |
4449 | if (block_inlined_p (bl)) | |
4450 | break; | |
4451 | if (BLOCK_FUNCTION (bl)) | |
4452 | { | |
4453 | bl = NULL; | |
4454 | break; | |
4455 | } | |
4456 | bl = BLOCK_SUPERBLOCK (bl); | |
4457 | } | |
4458 | if (bl != NULL) | |
4459 | break; | |
4460 | ||
634aa483 AC |
4461 | /* The case in which compiler's optimizer/scheduler has |
4462 | moved instructions into the prologue. We look ahead in | |
4463 | the function looking for address ranges whose | |
4464 | corresponding line number is less the first one that we | |
4465 | found for the function. This is more conservative then | |
4466 | refine_prologue_limit which scans a large number of SALs | |
4467 | looking for any in the prologue */ | |
4468 | prologue_sal = sal; | |
4469 | } | |
4470 | } | |
d54be744 DJ |
4471 | |
4472 | if (prologue_sal.end < end_pc) | |
4473 | /* Return the end of this line, or zero if we could not find a | |
4474 | line. */ | |
4475 | return prologue_sal.end; | |
4476 | else | |
4477 | /* Don't return END_PC, which is past the end of the function. */ | |
4478 | return prologue_sal.pc; | |
634aa483 | 4479 | } |
c906108c | 4480 | \f |
50641945 FN |
4481 | struct symtabs_and_lines |
4482 | decode_line_spec (char *string, int funfirstline) | |
4483 | { | |
4484 | struct symtabs_and_lines sals; | |
0378c332 | 4485 | struct symtab_and_line cursal; |
9af17804 | 4486 | |
50641945 | 4487 | if (string == 0) |
8a3fe4f8 | 4488 | error (_("Empty line specification.")); |
9af17804 | 4489 | |
0378c332 | 4490 | /* We use whatever is set as the current source line. We do not try |
9af17804 | 4491 | and get a default or it will recursively call us! */ |
0378c332 | 4492 | cursal = get_current_source_symtab_and_line (); |
9af17804 | 4493 | |
50641945 | 4494 | sals = decode_line_1 (&string, funfirstline, |
0378c332 | 4495 | cursal.symtab, cursal.line, |
bffe1ece | 4496 | (char ***) NULL, NULL); |
0378c332 | 4497 | |
50641945 | 4498 | if (*string) |
8a3fe4f8 | 4499 | error (_("Junk at end of line specification: %s"), string); |
50641945 FN |
4500 | return sals; |
4501 | } | |
c5aa993b | 4502 | |
51cc5b07 AC |
4503 | /* Track MAIN */ |
4504 | static char *name_of_main; | |
4505 | ||
4506 | void | |
4507 | set_main_name (const char *name) | |
4508 | { | |
4509 | if (name_of_main != NULL) | |
4510 | { | |
4511 | xfree (name_of_main); | |
4512 | name_of_main = NULL; | |
4513 | } | |
4514 | if (name != NULL) | |
4515 | { | |
4516 | name_of_main = xstrdup (name); | |
4517 | } | |
4518 | } | |
4519 | ||
ea53e89f JB |
4520 | /* Deduce the name of the main procedure, and set NAME_OF_MAIN |
4521 | accordingly. */ | |
4522 | ||
4523 | static void | |
4524 | find_main_name (void) | |
4525 | { | |
cd6c7346 | 4526 | const char *new_main_name; |
ea53e89f JB |
4527 | |
4528 | /* Try to see if the main procedure is in Ada. */ | |
4529 | /* FIXME: brobecker/2005-03-07: Another way of doing this would | |
4530 | be to add a new method in the language vector, and call this | |
4531 | method for each language until one of them returns a non-empty | |
4532 | name. This would allow us to remove this hard-coded call to | |
4533 | an Ada function. It is not clear that this is a better approach | |
4534 | at this point, because all methods need to be written in a way | |
4535 | such that false positives never be returned. For instance, it is | |
4536 | important that a method does not return a wrong name for the main | |
4537 | procedure if the main procedure is actually written in a different | |
4538 | language. It is easy to guaranty this with Ada, since we use a | |
4539 | special symbol generated only when the main in Ada to find the name | |
4540 | of the main procedure. It is difficult however to see how this can | |
4541 | be guarantied for languages such as C, for instance. This suggests | |
4542 | that order of call for these methods becomes important, which means | |
4543 | a more complicated approach. */ | |
4544 | new_main_name = ada_main_name (); | |
4545 | if (new_main_name != NULL) | |
9af17804 | 4546 | { |
ea53e89f JB |
4547 | set_main_name (new_main_name); |
4548 | return; | |
4549 | } | |
4550 | ||
cd6c7346 PM |
4551 | new_main_name = pascal_main_name (); |
4552 | if (new_main_name != NULL) | |
9af17804 | 4553 | { |
cd6c7346 PM |
4554 | set_main_name (new_main_name); |
4555 | return; | |
4556 | } | |
4557 | ||
ea53e89f JB |
4558 | /* The languages above didn't identify the name of the main procedure. |
4559 | Fallback to "main". */ | |
4560 | set_main_name ("main"); | |
4561 | } | |
4562 | ||
51cc5b07 AC |
4563 | char * |
4564 | main_name (void) | |
4565 | { | |
ea53e89f JB |
4566 | if (name_of_main == NULL) |
4567 | find_main_name (); | |
4568 | ||
4569 | return name_of_main; | |
51cc5b07 AC |
4570 | } |
4571 | ||
ea53e89f JB |
4572 | /* Handle ``executable_changed'' events for the symtab module. */ |
4573 | ||
4574 | static void | |
781b42b0 | 4575 | symtab_observer_executable_changed (void) |
ea53e89f JB |
4576 | { |
4577 | /* NAME_OF_MAIN may no longer be the same, so reset it for now. */ | |
4578 | set_main_name (NULL); | |
4579 | } | |
51cc5b07 | 4580 | |
ed0616c6 VP |
4581 | /* Helper to expand_line_sal below. Appends new sal to SAL, |
4582 | initializing it from SYMTAB, LINENO and PC. */ | |
4583 | static void | |
4584 | append_expanded_sal (struct symtabs_and_lines *sal, | |
6c95b8df | 4585 | struct program_space *pspace, |
ed0616c6 VP |
4586 | struct symtab *symtab, |
4587 | int lineno, CORE_ADDR pc) | |
4588 | { | |
9af17804 DE |
4589 | sal->sals = xrealloc (sal->sals, |
4590 | sizeof (sal->sals[0]) | |
ed0616c6 VP |
4591 | * (sal->nelts + 1)); |
4592 | init_sal (sal->sals + sal->nelts); | |
6c95b8df | 4593 | sal->sals[sal->nelts].pspace = pspace; |
ed0616c6 VP |
4594 | sal->sals[sal->nelts].symtab = symtab; |
4595 | sal->sals[sal->nelts].section = NULL; | |
4596 | sal->sals[sal->nelts].end = 0; | |
9af17804 | 4597 | sal->sals[sal->nelts].line = lineno; |
ed0616c6 | 4598 | sal->sals[sal->nelts].pc = pc; |
9af17804 | 4599 | ++sal->nelts; |
ed0616c6 VP |
4600 | } |
4601 | ||
aad80b26 | 4602 | /* Helper to expand_line_sal below. Search in the symtabs for any |
3ffc00b8 JB |
4603 | linetable entry that exactly matches FULLNAME and LINENO and append |
4604 | them to RET. If FULLNAME is NULL or if a symtab has no full name, | |
4605 | use FILENAME and LINENO instead. If there is at least one match, | |
4606 | return 1; otherwise, return 0, and return the best choice in BEST_ITEM | |
4607 | and BEST_SYMTAB. */ | |
aad80b26 JG |
4608 | |
4609 | static int | |
3ffc00b8 | 4610 | append_exact_match_to_sals (char *filename, char *fullname, int lineno, |
aad80b26 JG |
4611 | struct symtabs_and_lines *ret, |
4612 | struct linetable_entry **best_item, | |
4613 | struct symtab **best_symtab) | |
4614 | { | |
6c95b8df | 4615 | struct program_space *pspace; |
aad80b26 JG |
4616 | struct objfile *objfile; |
4617 | struct symtab *symtab; | |
4618 | int exact = 0; | |
4619 | int j; | |
4620 | *best_item = 0; | |
4621 | *best_symtab = 0; | |
6c95b8df PA |
4622 | |
4623 | ALL_PSPACES (pspace) | |
4624 | ALL_PSPACE_SYMTABS (pspace, objfile, symtab) | |
aad80b26 | 4625 | { |
3ffc00b8 | 4626 | if (FILENAME_CMP (filename, symtab->filename) == 0) |
aad80b26 JG |
4627 | { |
4628 | struct linetable *l; | |
4629 | int len; | |
433759f7 | 4630 | |
3ffc00b8 JB |
4631 | if (fullname != NULL |
4632 | && symtab_to_fullname (symtab) != NULL | |
4633 | && FILENAME_CMP (fullname, symtab->fullname) != 0) | |
4634 | continue; | |
aad80b26 JG |
4635 | l = LINETABLE (symtab); |
4636 | if (!l) | |
4637 | continue; | |
4638 | len = l->nitems; | |
4639 | ||
4640 | for (j = 0; j < len; j++) | |
4641 | { | |
4642 | struct linetable_entry *item = &(l->item[j]); | |
4643 | ||
4644 | if (item->line == lineno) | |
4645 | { | |
4646 | exact = 1; | |
6c95b8df PA |
4647 | append_expanded_sal (ret, objfile->pspace, |
4648 | symtab, lineno, item->pc); | |
aad80b26 JG |
4649 | } |
4650 | else if (!exact && item->line > lineno | |
4651 | && (*best_item == NULL | |
4652 | || item->line < (*best_item)->line)) | |
4653 | { | |
4654 | *best_item = item; | |
4655 | *best_symtab = symtab; | |
4656 | } | |
4657 | } | |
4658 | } | |
4659 | } | |
4660 | return exact; | |
4661 | } | |
4662 | ||
6c95b8df PA |
4663 | /* Compute a set of all sals in all program spaces that correspond to |
4664 | same file and line as SAL and return those. If there are several | |
4665 | sals that belong to the same block, only one sal for the block is | |
4666 | included in results. */ | |
9af17804 | 4667 | |
ed0616c6 VP |
4668 | struct symtabs_and_lines |
4669 | expand_line_sal (struct symtab_and_line sal) | |
4670 | { | |
952a6d41 | 4671 | struct symtabs_and_lines ret; |
ed0616c6 VP |
4672 | int i, j; |
4673 | struct objfile *objfile; | |
ed0616c6 VP |
4674 | int lineno; |
4675 | int deleted = 0; | |
4676 | struct block **blocks = NULL; | |
4677 | int *filter; | |
6c95b8df | 4678 | struct cleanup *old_chain; |
ed0616c6 VP |
4679 | |
4680 | ret.nelts = 0; | |
4681 | ret.sals = NULL; | |
4682 | ||
6c95b8df | 4683 | /* Only expand sals that represent file.c:line. */ |
ed0616c6 VP |
4684 | if (sal.symtab == NULL || sal.line == 0 || sal.pc != 0) |
4685 | { | |
4686 | ret.sals = xmalloc (sizeof (struct symtab_and_line)); | |
4687 | ret.sals[0] = sal; | |
4688 | ret.nelts = 1; | |
4689 | return ret; | |
4690 | } | |
4691 | else | |
4692 | { | |
6c95b8df | 4693 | struct program_space *pspace; |
ed0616c6 VP |
4694 | struct linetable_entry *best_item = 0; |
4695 | struct symtab *best_symtab = 0; | |
4696 | int exact = 0; | |
6c95b8df | 4697 | char *match_filename; |
ed0616c6 VP |
4698 | |
4699 | lineno = sal.line; | |
6c95b8df | 4700 | match_filename = sal.symtab->filename; |
ed0616c6 | 4701 | |
9af17804 DE |
4702 | /* We need to find all symtabs for a file which name |
4703 | is described by sal. We cannot just directly | |
ed0616c6 | 4704 | iterate over symtabs, since a symtab might not be |
9af17804 | 4705 | yet created. We also cannot iterate over psymtabs, |
ed0616c6 VP |
4706 | calling PSYMTAB_TO_SYMTAB and working on that symtab, |
4707 | since PSYMTAB_TO_SYMTAB will return NULL for psymtab | |
9af17804 | 4708 | corresponding to an included file. Therefore, we do |
ed0616c6 VP |
4709 | first pass over psymtabs, reading in those with |
4710 | the right name. Then, we iterate over symtabs, knowing | |
4711 | that all symtabs we're interested in are loaded. */ | |
4712 | ||
6c95b8df PA |
4713 | old_chain = save_current_program_space (); |
4714 | ALL_PSPACES (pspace) | |
ccefe4c4 TT |
4715 | { |
4716 | set_current_program_space (pspace); | |
4717 | ALL_PSPACE_OBJFILES (pspace, objfile) | |
ed0616c6 | 4718 | { |
ccefe4c4 TT |
4719 | if (objfile->sf) |
4720 | objfile->sf->qf->expand_symtabs_with_filename (objfile, | |
4721 | sal.symtab->filename); | |
ed0616c6 | 4722 | } |
ccefe4c4 | 4723 | } |
6c95b8df | 4724 | do_cleanups (old_chain); |
ed0616c6 | 4725 | |
aad80b26 JG |
4726 | /* Now search the symtab for exact matches and append them. If |
4727 | none is found, append the best_item and all its exact | |
4728 | matches. */ | |
3ffc00b8 JB |
4729 | symtab_to_fullname (sal.symtab); |
4730 | exact = append_exact_match_to_sals (sal.symtab->filename, | |
4731 | sal.symtab->fullname, lineno, | |
aad80b26 | 4732 | &ret, &best_item, &best_symtab); |
ed0616c6 | 4733 | if (!exact && best_item) |
3ffc00b8 JB |
4734 | append_exact_match_to_sals (best_symtab->filename, |
4735 | best_symtab->fullname, best_item->line, | |
aad80b26 | 4736 | &ret, &best_item, &best_symtab); |
ed0616c6 VP |
4737 | } |
4738 | ||
4739 | /* For optimized code, compiler can scatter one source line accross | |
4740 | disjoint ranges of PC values, even when no duplicate functions | |
4741 | or inline functions are involved. For example, 'for (;;)' inside | |
4742 | non-template non-inline non-ctor-or-dtor function can result | |
4743 | in two PC ranges. In this case, we don't want to set breakpoint | |
4744 | on first PC of each range. To filter such cases, we use containing | |
4745 | blocks -- for each PC found above we see if there are other PCs | |
9af17804 | 4746 | that are in the same block. If yes, the other PCs are filtered out. */ |
ed0616c6 | 4747 | |
6c95b8df | 4748 | old_chain = save_current_program_space (); |
db009c8a JB |
4749 | filter = alloca (ret.nelts * sizeof (int)); |
4750 | blocks = alloca (ret.nelts * sizeof (struct block *)); | |
ed0616c6 VP |
4751 | for (i = 0; i < ret.nelts; ++i) |
4752 | { | |
6c95b8df PA |
4753 | set_current_program_space (ret.sals[i].pspace); |
4754 | ||
ed0616c6 | 4755 | filter[i] = 1; |
6c95b8df PA |
4756 | blocks[i] = block_for_pc_sect (ret.sals[i].pc, ret.sals[i].section); |
4757 | ||
ed0616c6 | 4758 | } |
6c95b8df | 4759 | do_cleanups (old_chain); |
ed0616c6 VP |
4760 | |
4761 | for (i = 0; i < ret.nelts; ++i) | |
4762 | if (blocks[i] != NULL) | |
4763 | for (j = i+1; j < ret.nelts; ++j) | |
4764 | if (blocks[j] == blocks[i]) | |
4765 | { | |
4766 | filter[j] = 0; | |
4767 | ++deleted; | |
4768 | break; | |
4769 | } | |
9af17804 | 4770 | |
ed0616c6 | 4771 | { |
9af17804 | 4772 | struct symtab_and_line *final = |
ed0616c6 | 4773 | xmalloc (sizeof (struct symtab_and_line) * (ret.nelts-deleted)); |
9af17804 | 4774 | |
ed0616c6 VP |
4775 | for (i = 0, j = 0; i < ret.nelts; ++i) |
4776 | if (filter[i]) | |
4777 | final[j++] = ret.sals[i]; | |
9af17804 | 4778 | |
ed0616c6 VP |
4779 | ret.nelts -= deleted; |
4780 | xfree (ret.sals); | |
4781 | ret.sals = final; | |
4782 | } | |
4783 | ||
4784 | return ret; | |
4785 | } | |
4786 | ||
a6c727b2 DJ |
4787 | /* Return 1 if the supplied producer string matches the ARM RealView |
4788 | compiler (armcc). */ | |
4789 | ||
4790 | int | |
4791 | producer_is_realview (const char *producer) | |
4792 | { | |
4793 | static const char *const arm_idents[] = { | |
4794 | "ARM C Compiler, ADS", | |
4795 | "Thumb C Compiler, ADS", | |
4796 | "ARM C++ Compiler, ADS", | |
4797 | "Thumb C++ Compiler, ADS", | |
4798 | "ARM/Thumb C/C++ Compiler, RVCT", | |
4799 | "ARM C/C++ Compiler, RVCT" | |
4800 | }; | |
4801 | int i; | |
4802 | ||
4803 | if (producer == NULL) | |
4804 | return 0; | |
4805 | ||
4806 | for (i = 0; i < ARRAY_SIZE (arm_idents); i++) | |
4807 | if (strncmp (producer, arm_idents[i], strlen (arm_idents[i])) == 0) | |
4808 | return 1; | |
4809 | ||
4810 | return 0; | |
4811 | } | |
ed0616c6 | 4812 | |
c906108c | 4813 | void |
fba45db2 | 4814 | _initialize_symtab (void) |
c906108c | 4815 | { |
1bedd215 AC |
4816 | add_info ("variables", variables_info, _("\ |
4817 | All global and static variable names, or those matching REGEXP.")); | |
c906108c | 4818 | if (dbx_commands) |
1bedd215 AC |
4819 | add_com ("whereis", class_info, variables_info, _("\ |
4820 | All global and static variable names, or those matching REGEXP.")); | |
c906108c SS |
4821 | |
4822 | add_info ("functions", functions_info, | |
1bedd215 | 4823 | _("All function names, or those matching REGEXP.")); |
c906108c SS |
4824 | |
4825 | /* FIXME: This command has at least the following problems: | |
4826 | 1. It prints builtin types (in a very strange and confusing fashion). | |
4827 | 2. It doesn't print right, e.g. with | |
c5aa993b JM |
4828 | typedef struct foo *FOO |
4829 | type_print prints "FOO" when we want to make it (in this situation) | |
4830 | print "struct foo *". | |
c906108c SS |
4831 | I also think "ptype" or "whatis" is more likely to be useful (but if |
4832 | there is much disagreement "info types" can be fixed). */ | |
4833 | add_info ("types", types_info, | |
1bedd215 | 4834 | _("All type names, or those matching REGEXP.")); |
c906108c | 4835 | |
c906108c | 4836 | add_info ("sources", sources_info, |
1bedd215 | 4837 | _("Source files in the program.")); |
c906108c SS |
4838 | |
4839 | add_com ("rbreak", class_breakpoint, rbreak_command, | |
1bedd215 | 4840 | _("Set a breakpoint for all functions matching REGEXP.")); |
c906108c SS |
4841 | |
4842 | if (xdb_commands) | |
4843 | { | |
1bedd215 AC |
4844 | add_com ("lf", class_info, sources_info, |
4845 | _("Source files in the program")); | |
4846 | add_com ("lg", class_info, variables_info, _("\ | |
4847 | All global and static variable names, or those matching REGEXP.")); | |
c906108c SS |
4848 | } |
4849 | ||
717d2f5a JB |
4850 | add_setshow_enum_cmd ("multiple-symbols", no_class, |
4851 | multiple_symbols_modes, &multiple_symbols_mode, | |
4852 | _("\ | |
4853 | Set the debugger behavior when more than one symbol are possible matches\n\ | |
4854 | in an expression."), _("\ | |
4855 | Show how the debugger handles ambiguities in expressions."), _("\ | |
4856 | Valid values are \"ask\", \"all\", \"cancel\", and the default is \"all\"."), | |
4857 | NULL, NULL, &setlist, &showlist); | |
4858 | ||
ea53e89f | 4859 | observer_attach_executable_changed (symtab_observer_executable_changed); |
c906108c | 4860 | } |